/* =========================================================
   Luxury Polish Overlay - Premium Detail Layer v6.0
   Cleaned: removed, consolidated duplicates,
   replaced hardcoded values with design tokens.
   Redundant token-override rules removed (handled by academy-tokens.css).
   ========================================================= */
/* =========================================================
   Luxury Polish Overlay - Premium Detail Layer
   ========================================================= */
/* Micro patterns - subtle texture */
/* Certificate showcase ambient glow */
/* Outcome strip premium */
/* Brand seal refinement */
/* Certificate preview glow */
/* Price card featured glow */
/* Section heading refinement */
/* Scroll behavior refinement */
/* Value proposition - 会员价值主张 (Coursera theme) */
/* Selection color refinement */
body.theme-coursera .app-shell{position:relative}
body.theme-coursera .app-shell:before{content:"";position:fixed;top:0;left:0;right:0;bottom:0;background-image:radial-gradient(circle at 20% 20%,color-mix(in srgb,var(--color-brand) 1%,transparent) 0,transparent 50%),
    radial-gradient(circle at 80% 80%,color-mix(in srgb,var(--color-brand) 1%,transparent) 0,transparent 50%);pointer-events:none;z-index:-1}
body.theme-coursera .hero-art:after{display:none}
body.theme-coursera .ranking-podium{position:relative;z-index:1}
body.theme-coursera .source-book:after{display:none}
body.theme-coursera .cert-showcase{position:relative}
body.theme-coursera .cert-showcase:after{content:"";position:absolute;top:50%;right:-10%;width:300px;height:300px;background:radial-gradient(circle,color-mix(in srgb,var(--color-brand) 5%,transparent),transparent 60%);pointer-events:none}
body.theme-coursera .outcome-strip{position:relative;overflow:hidden}
body.theme-coursera .outcome-strip:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,color-mix(in srgb,var(--color-brand) 15%,transparent),transparent)}
body.theme-coursera .brand-logo,body.theme-coursera .seal{transition:transform var(--transition-base) cubic-bezier(.4,0,.2,1),
              box-shadow .3s ease}
body.theme-coursera .brand:hover .brand-logo,body.theme-coursera .brand:hover .seal{transform:scale(1.05)}
body.theme-coursera .cert-preview-card{position:relative}
body.theme-coursera .cert-preview-card:after{content:"";position:absolute;top:-2px;left:-2px;right:-2px;bottom:-2px;border-radius:var(--radius-lg);background:linear-gradient(135deg,transparent 40%,color-mix(in srgb,var(--color-brand) 8%,transparent),transparent 60%);pointer-events:none;z-index:-1}
body.theme-coursera .price-card.featured{box-shadow:0 0 0 1px color-mix(in srgb,var(--color-brand) 15%,transparent),0 8px 32px color-mix(in srgb,var(--color-brand) 10%,transparent)}
body.theme-coursera .view-head{position:relative}
body.theme-coursera .view-head:after{content:"";position:absolute;bottom:0;left:0;right:0;height:1px;background:linear-gradient(90deg,var(--line),transparent)}
body.theme-coursera{scroll-behavior:smooth}
body.theme-coursera .value-proposition{margin:0 0 48px}
body.theme-coursera .vp-head{text-align:center;max-width:760px;margin:0 auto 36px}
body.theme-coursera .vp-eyebrow{font-size:var(--font-xs);letter-spacing:.2em;color:var(--wine);font-weight:var(--weight-semibold)}
body.theme-coursera .vp-head h2{font:700 clamp(28px,4vw,44px)/1.15 var(--sans);letter-spacing:-.02em;margin:12px 0 14px;color:var(--ink)}
body.theme-coursera .vp-head p{font-size:var(--font-lg);color:var(--muted);margin:0;line-height:1.6}
body.theme-coursera .vp-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;max-width:1200px;margin:0 auto}
body.theme-coursera .vp-pair{display:flex;flex-direction:column;gap:8px}
body.theme-coursera .vp-item{border-radius:var(--radius-md);padding:20px;position:relative;transition:transform var(--transition-base) cubic-bezier(.4,0,.2,1),box-shadow var(--transition-base) ease,border-color var(--transition-base) ease;background:var(--color-white);border:1px solid var(--line)}
body.theme-coursera .vp-item:hover{transform:translateY(-2px);box-shadow:0 8px 24px color-mix(in srgb,var(--color-ink) 8%,transparent)}
body.theme-coursera .vp-item.pain{border-left:3px solid var(--color-error)}
body.theme-coursera .vp-item.pain:hover{border-color:rgba(209,50,18,.2);box-shadow:0 8px 24px rgba(229,62,62,.08)}
body.theme-coursera .vp-item.gain{border-left:3px solid var(--color-success)}
body.theme-coursera .vp-item.gain:hover{border-color:rgba(24,128,56,.2);box-shadow:0 8px 24px rgba(56,161,105,.08)}
body.theme-coursera .vp-icon{font-size:24px;margin-bottom:10px}
body.theme-coursera .vp-item h3{font:700 16px/1.4 var(--sans);margin:0 0 6px;color:var(--ink)}
body.theme-coursera .vp-item p{font-size:var(--font-md);color:var(--muted);margin:0;line-height:1.6}
body.theme-coursera .vp-arrow{text-align:center;font-size:var(--font-lg);color:var(--wine);font-weight:var(--weight-bold);line-height:1}
body.theme-coursera ::selection{background:var(--color-brand-ring);color:var(--color-brand-active)}
/* =========================================================
   Coursera Theme - Final Polish Layer
   Additional micro-interactions and visual refinements
   ========================================================= */
/* =========================================================
   101. Hero section - entrance animation
   ========================================================= */
body.theme-coursera .hero-copy h1{animation:heroTitleIn .8s cubic-bezier(.4,0,.2,1) backwards;font-weight:var(--weight-bold);font-size:clamp(36px,5vw,56px);line-height:1.15;letter-spacing:-.02em;color:var(--color-ink);margin:0 0 20px}
@keyframes heroTitleIn{from{opacity:0;transform:translateY(20px)} to{opacity:1;transform:none}}
body.theme-coursera .hero-copy>p{animation:heroTextIn .8s .15s cubic-bezier(.4,0,.2,1) backwards;font-size:var(--font-lg);line-height:1.75;color:var(--color-body);max-width:600px;margin:0}
@keyframes heroTextIn{from{opacity:0;transform:translateY(16px)} to{opacity:1;transform:none}}
body.theme-coursera .hero-actions{animation:heroActionsIn .8s .3s cubic-bezier(.4,0,.2,1) backwards;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
body.theme-coursera .hero-auth-link{display:inline-flex;align-items:center}
body.theme-coursera .hero-auth-link button{background:var(--color-white);border:1px solid var(--color-line);color:var(--color-ink);border-radius:var(--radius-input);font-weight:var(--weight-medium);font-size:var(--font-base);padding:var(--space-3) var(--space-5);line-height:1.5;cursor:pointer;transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast)}
body.theme-coursera .hero-auth-link button:hover{background:color-mix(in srgb,var(--color-brand) 4%,transparent);border-color:var(--color-brand);color:var(--color-brand);box-shadow:0 1px 3px color-mix(in srgb,var(--color-ink) 8%,transparent)}
@keyframes heroActionsIn{from{opacity:0;transform:translateY(12px)} to{opacity:1;transform:none}}
body.theme-coursera .hero-art{animation:heroArtIn 1s .2s cubic-bezier(.4,0,.2,1) backwards}
@keyframes heroArtIn{from{opacity:0;transform:scale(.95) translateX(20px)} to{opacity:1;transform:none}}
/* =========================================================
   101b. Hero proof stats - 蓝色主题清晰度优化
   ========================================================= */
body.theme-coursera .hero-proof{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:32px}
body.theme-coursera .hero-proof span{display:flex;flex-direction:column;justify-content:flex-start;gap:6px;padding:16px 20px;border-left:1px solid var(--color-line);writing-mode:horizontal-tb;text-orientation:mixed}
body.theme-coursera .hero-proof span:first-child{border-left:0;padding-left:0}
body.theme-coursera .hero-proof b{display:block;color:var(--color-ink);font-weight:800;font-size:var(--font-4xl);letter-spacing:-.03em;line-height:1;margin:0;white-space:nowrap}
body.theme-coursera .hero-proof small{display:block;color:var(--color-muted);font-weight:var(--weight-medium);font-size:var(--font-md);line-height:1.4;letter-spacing:normal;white-space:nowrap;writing-mode:horizontal-tb;text-orientation:mixed;width:auto}
body.theme-coursera .hero-proof span:hover{background:var(--color-surface-2)}
body.theme-coursera .hero-proof span:hover b{color:var(--color-brand)}
/* =========================================================
   102. Section headings - red accent line
   ========================================================= */
body.theme-coursera .section-head h2{position:relative;display:inline-block}
body.theme-coursera .section-head h2:after{content:"";position:absolute;bottom:-8px;left:0;width:32px;height:3px;background:linear-gradient(90deg,var(--color-brand),var(--color-info));border-radius:var(--radius-xs);transition:width var(--transition-base)}
body.theme-coursera .section-head:hover h2:after{width:48px}
/* =========================================================
   103. Course grid items - staggered entrance
   ========================================================= */
body.theme-coursera .course-item{animation:cardEntrance .5s cubic-bezier(.4,0,.2,1) backwards}
body.theme-coursera .course-item:nth-child(1){animation-delay:.05s}
body.theme-coursera .course-item:nth-child(2){animation-delay:.1s}
body.theme-coursera .course-item:nth-child(3){animation-delay:.15s}
body.theme-coursera .course-item:nth-child(4){animation-delay:.2s}
body.theme-coursera .course-item:nth-child(5){animation-delay:.25s}
body.theme-coursera .course-item:nth-child(6){animation-delay:.3s}
body.theme-coursera .course-item:nth-child(7){animation-delay:.35s}
body.theme-coursera .course-item:nth-child(8){animation-delay:.4s}
body.theme-coursera .course-item:nth-child(9){animation-delay:.45s}
body.theme-coursera .course-item:nth-child(10){animation-delay:.5s}
@keyframes cardEntrance{from{opacity:0;transform:translateY(16px)} to{opacity:1;transform:none}}
/* =========================================================
   104. Source books - staggered entrance
   ========================================================= */
body.theme-coursera .source-book{animation:bookEntrance .6s cubic-bezier(.4,0,.2,1) backwards}
body.theme-coursera .source-book:nth-child(1){animation-delay:.1s}
body.theme-coursera .source-book:nth-child(2){animation-delay:.2s}
body.theme-coursera .source-book:nth-child(3){animation-delay:.3s}
body.theme-coursera .source-book:nth-child(4){animation-delay:.4s}
body.theme-coursera .source-book:nth-child(5){animation-delay:.5s}
@keyframes bookEntrance{from{opacity:0;transform:translateY(20px) scale(.98)} to{opacity:1;transform:none}}
/* =========================================================
   105. Feature cards - enhanced hover
   ========================================================= */
body.theme-coursera .feature-card{position:relative;overflow:hidden}
body.theme-coursera .feature-card:before{content:"";position:absolute;top:0;left:0;right:0;height:0;background:linear-gradient(180deg,color-mix(in srgb,var(--color-brand) 6%,transparent),transparent);transition:height var(--transition-base);pointer-events:none}
body.theme-coursera .feature-card:hover:before{height:100%}
/* =========================================================
   106. Price cards - featured glow
   ========================================================= */
body.theme-coursera .price-card.featured{position:relative}
body.theme-coursera .price-card.featured:before{content:"";position:absolute;inset:-1px;background:linear-gradient(135deg,var(--color-brand),var(--color-info));border-radius:inherit;z-index:-1;opacity:.15;filter:blur(8px);transition:opacity var(--transition-base)}
body.theme-coursera .price-card.featured:hover:before{opacity:.25}
/* =========================================================
   107. Ranking items - medal colors
   ========================================================= */
body.theme-coursera .ranking-item:nth-child(1) .rank-badge{background:linear-gradient(135deg,var(--color-medal-gold),var(--color-medal-gold-dark));color:var(--color-medal-gold-text);box-shadow:0 2px 8px var(--color-medal-gold)}
body.theme-coursera .ranking-item:nth-child(2) .rank-badge{background:linear-gradient(135deg,var(--color-medal-silver),var(--color-medal-silver-dark));color:var(--color-medal-silver-text);box-shadow:0 2px 8px var(--color-medal-silver)}
body.theme-coursera .ranking-item:nth-child(3) .rank-badge{background:linear-gradient(135deg,var(--color-medal-bronze),var(--color-medal-bronze-dark));color:var(--color-white);box-shadow:0 2px 8px var(--color-medal-bronze)}
/* =========================================================
   108. Certification badge - enhanced
   ========================================================= */
body.theme-coursera .cert-badge{position:relative}
body.theme-coursera .cert-badge:after{content:"";position:absolute;inset:-4px;background:linear-gradient(135deg,var(--color-brand),var(--color-info));border-radius:inherit;z-index:-1;opacity:.1;filter:blur(12px);animation:certGlow 3s ease-in-out infinite}
@keyframes certGlow{0%,100%{opacity:.1;transform:scale(1)} 50%{opacity:.2;transform:scale(1.02)}}
/* =========================================================
   109. Toast notifications - refined
   ========================================================= */
body.theme-coursera .toast{animation:toastSlideIn .4s cubic-bezier(.4,0,.2,1);backdrop-filter:blur(12px) saturate(120%);-webkit-backdrop-filter:blur(12px) saturate(120%)}
@keyframes toastSlideIn{from{opacity:0;transform:translateX(40px)} to{opacity:1;transform:none}}
body.theme-coursera .toast.success{border-left:4px solid var(--color-success)}
body.theme-coursera .toast.error{border-left:4px solid var(--color-error)}
body.theme-coursera .toast.info{border-left:4px solid var(--color-brand)}
/* =========================================================
   110. Modal/dialog - refined backdrop
   ========================================================= */
body.theme-coursera .modal-backdrop{backdrop-filter:blur(4px) saturate(90%);-webkit-backdrop-filter:blur(4px) saturate(90%);background:rgba(15,10,10,.45)}
body.theme-coursera .modal-content{animation:modalIn .35s cubic-bezier(.4,0,.2,1);box-shadow:0 24px 48px color-mix(in srgb,var(--color-ink) 15%,transparent),0 0 0 1px color-mix(in srgb,var(--color-ink) 4%,transparent)}
@keyframes modalIn{from{opacity:0;transform:scale(.96) translateY(8px)} to{opacity:1;transform:none}}
/* =========================================================
   111. Loading states - refined
   ========================================================= */
body.theme-coursera .loading-spinner{width:24px;height:24px;border:2px solid var(--line);border-top-color:var(--color-brand);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
/* Skeleton loading */
body.theme-coursera .skeleton{background:linear-gradient(90deg,var(--paper-2) 25%,var(--paper) 50%,var(--paper-2) 75%);background-size:200% 100%;animation:skeletonShimmer 1.5s ease-in-out infinite;border-radius:var(--radius-xs)}
@keyframes skeletonShimmer{0%{background-position:200% 0} 100%{background-position:-200% 0}}
/* =========================================================
   112. Tag/badge components - refined
   ========================================================= */
body.theme-coursera .tag{transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);position:relative;overflow:hidden}
body.theme-coursera .tag:hover{transform:translateY(-1px);box-shadow:0 2px 6px color-mix(in srgb,var(--color-ink) 8%,transparent)}
body.theme-coursera .tag.primary{background:linear-gradient(135deg,var(--color-brand),var(--color-brand-hover));color:var(--color-white);box-shadow:0 2px 8px color-mix(in srgb,var(--color-brand) 25%,transparent)}
/* =========================================================
   113. Link hover - underline animation
   ========================================================= */
body.theme-coursera a:not(.btn):not(.nav-tab){position:relative;text-decoration:none}
body.theme-coursera a:not(.btn):not(.nav-tab):after{content:"";position:absolute;bottom:-1px;left:0;width:0;height:1px;background:linear-gradient(90deg,var(--color-brand),var(--color-info));transition:width var(--transition-base)}
body.theme-coursera a:not(.btn):not(.nav-tab):hover:after{width:100%}
/* =========================================================
   114. Tooltip - refined
   ========================================================= */
body.theme-coursera [data-tooltip]:before{content:attr(data-tooltip);position:absolute;bottom:calc(100% + 8px);left:50%;transform:translateX(-50%) translateY(4px);padding:6px 12px;background:color-mix(in srgb,var(--color-ink) 95%,transparent);color:var(--color-white);font-size:var(--font-sm);font-weight:var(--weight-medium);border-radius:var(--radius-sm);white-space:nowrap;opacity:0;pointer-events:none;transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);box-shadow:0 4px 12px color-mix(in srgb,var(--color-ink) 15%,transparent)}
body.theme-coursera [data-tooltip]:hover:before{opacity:1;transform:translateX(-50%) translateY(0)}
/* =========================================================
   115. Progress ring - refined
   ========================================================= */
body.theme-coursera .progress-ring circle{transition:stroke-dashoffset var(--transition-slow) cubic-bezier(.4,0,.2,1)}
body.theme-coursera .progress-ring .bg{stroke:var(--line)}
body.theme-coursera .progress-ring .fill{stroke:linear-gradient(180deg,var(--color-brand),var(--color-info));stroke-linecap:round}
/* =========================================================
   116. Switch/toggle - refined
   ========================================================= */
body.theme-coursera .switch{position:relative;width:44px;height:24px;background:var(--line-strong);border-radius:var(--radius-md);transition:background var(--transition-fast);cursor:pointer}
body.theme-coursera .switch.active{background:linear-gradient(135deg,var(--color-brand),var(--color-brand-hover))}
body.theme-coursera .switch:after{content:"";position:absolute;top:2px;left:2px;width:20px;height:20px;background:var(--color-white);border-radius:50%;box-shadow:0 1px 3px color-mix(in srgb,var(--color-ink) 15%,transparent);transition:transform var(--transition-fast) cubic-bezier(.4,0,.2,1)}
body.theme-coursera .switch.active:after{transform:translateX(20px)}
/* =========================================================
   117. Avatar/profile images - refined
   ========================================================= */
body.theme-coursera .avatar{transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);border:2px solid transparent}
body.theme-coursera .avatar:hover{border-color:color-mix(in srgb,var(--color-brand) 30%,transparent);transform:scale(1.05);box-shadow:0 4px 12px color-mix(in srgb,var(--color-ink) 10%,transparent)}
/* =========================================================
   118. Divider - refined
   ========================================================= */
body.theme-coursera hr,body.theme-coursera .divider{border:0;height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);margin:24px 0}
body.theme-coursera hr.accent,body.theme-coursera .divider.accent{height:2px;background:linear-gradient(90deg,transparent,var(--color-brand),transparent);opacity:.3}
/* =========================================================
   119. Empty state - refined
   ========================================================= */
body.theme-coursera .empty-state{text-align:center;padding:48px 24px}
body.theme-coursera .empty-state-icon{width:64px;height:64px;margin:0 auto 16px;background:var(--wine-soft);border-radius:var(--radius-lg);display:grid;place-items:center;font-size:28px;color:var(--wine)}
/* =========================================================
   120. Breadcrumb - refined
   ========================================================= */
body.theme-coursera .breadcrumb{display:flex;align-items:center;gap:8px;font-size:var(--font-md);color:var(--muted)}
body.theme-coursera .breadcrumb a{color:var(--muted);transition:color var(--transition-fast)}
body.theme-coursera .breadcrumb a:hover{color:var(--wine)}
body.theme-coursera .breadcrumb-separator{color:var(--line-strong);font-size:var(--font-xs)}
body.theme-coursera .breadcrumb-current{color:var(--ink);font-weight:var(--weight-medium)}
/* =========================================================
   121. Pagination - refined
   ========================================================= */
body.theme-coursera .pagination button{min-width:36px;height:36px;border-radius:var(--radius-input);display:grid;place-items:center;font-size:var(--font-base);font-weight:var(--weight-medium);transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);border:1px solid var(--line);background:var(--color-white);color:var(--ink)}
body.theme-coursera .pagination button:hover{border-color:var(--wine);color:var(--wine);background:var(--wine-soft)}
body.theme-coursera .pagination button.active{background:linear-gradient(135deg,var(--color-brand),var(--color-brand-hover));color:var(--color-white);border-color:transparent;box-shadow:0 2px 8px color-mix(in srgb,var(--color-brand) 25%,transparent)}
body.theme-coursera .pagination button:disabled{opacity:.4;cursor:not-allowed}
/* =========================================================
   122. Status indicators - refined
   ========================================================= */
body.theme-coursera .status-dot{width:8px;height:8px;border-radius:50%;display:inline-block;position:relative}
body.theme-coursera .status-dot.online{background:var(--color-success);box-shadow:0 0 0 2px rgba(24,128,56,.2)}
body.theme-coursera .status-dot.away{background:var(--color-warning);box-shadow:0 0 0 2px rgba(176,96,0,.2)}
body.theme-coursera .status-dot.offline{background:var(--line-strong)}
body.theme-coursera .status-dot.pulse{animation:statusPulse 2s ease-in-out infinite}
@keyframes statusPulse{0%,100%{box-shadow:0 0 0 2px rgba(24,128,56,.2)} 50%{box-shadow:0 0 0 4px rgba(24,128,56,.1)}}
/* =========================================================
   123. Notification dot - refined
   ========================================================= */
body.theme-coursera .notification-dot{position:absolute;top:-2px;right:-2px;width:8px;height:8px;background:linear-gradient(135deg,var(--color-brand),var(--color-info));border-radius:50%;border:2px solid var(--color-white);animation:notificationPulse 2s ease-in-out infinite}
@keyframes notificationPulse{0%,100%{transform:scale(1)} 50%{transform:scale(1.2)}}
/* =========================================================
   124. Code blocks - refined
   ========================================================= */
body.theme-coursera pre,body.theme-coursera code{font-family:'SF Mono',Monaco,Inconsolata,'Fira Code',monospace;font-size:var(--font-md);line-height:1.6}
body.theme-coursera pre{background:#1a1a2e;color:#e4e4e7;padding:16px 20px;border-radius:var(--radius-input);overflow-x:auto;position:relative}
body.theme-coursera pre:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--color-brand),var(--color-info));border-radius:var(--radius-input) 8px 0 0}
/* =========================================================
   125. Table - refined
   ========================================================= */
body.theme-coursera table{width:100%;border-collapse:separate;border-spacing:0;font-size:var(--font-base)}
body.theme-coursera th{background:var(--paper-2);font-weight:var(--weight-semibold);text-align:left;padding:12px 16px;border-bottom:2px solid var(--line);color:var(--ink);font-size:var(--font-sm);text-transform:uppercase;letter-spacing:.05em}
body.theme-coursera td{padding:12px 16px;border-bottom:1px solid var(--line);color:var(--ink)}
body.theme-coursera tr:hover td{background:var(--wine-soft)}
body.theme-coursera tr:last-child td{border-bottom:2px solid var(--line)}
/* =========================================================
   126. Accordion - refined
   ========================================================= */
body.theme-coursera .accordion-item{border-bottom:1px solid var(--line);transition:transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast)}
body.theme-coursera .accordion-header{padding:16px 0;display:flex;align-items:center;justify-content:space-between;cursor:pointer;font-weight:var(--weight-medium);transition:color var(--transition-fast)}
body.theme-coursera .accordion-header:hover{color:var(--wine)}
body.theme-coursera .accordion-icon{transition:transform var(--transition-base) cubic-bezier(.4,0,.2,1);color:var(--muted)}
body.theme-coursera .accordion-item.open .accordion-icon{transform:rotate(180deg);color:var(--wine)}
body.theme-coursera .accordion-content{max-height:0;overflow:hidden;transition:max-height var(--transition-base) cubic-bezier(.4,0,.2,1),padding var(--transition-base) ease}
body.theme-coursera .accordion-item.open .accordion-content{max-height:500px;padding-bottom:16px}
/* =========================================================
   127. Step indicator - refined
   ========================================================= */
body.theme-coursera .step-indicator{display:flex;align-items:center;gap:8px}
body.theme-coursera .step{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;font-size:var(--font-md);font-weight:var(--weight-semibold);transition:background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base), opacity var(--transition-base);border:2px solid var(--line);background:var(--color-white);color:var(--muted)}
body.theme-coursera .step.active{border-color:var(--color-brand);background:linear-gradient(135deg,var(--color-brand),var(--color-brand-hover));color:var(--color-white);box-shadow:0 2px 8px color-mix(in srgb,var(--color-brand) 25%,transparent)}
body.theme-coursera .step.completed{border-color:var(--color-success);background:var(--color-success);color:var(--color-white)}
body.theme-coursera .step-line{flex:1;height:2px;background:var(--line);position:relative;overflow:hidden}
body.theme-coursera .step-line:after{content:"";position:absolute;left:0;top:0;height:100%;width:0;background:linear-gradient(90deg,var(--color-brand),var(--color-info));transition:width var(--transition-slow)}
body.theme-coursera .step-line.completed:after{width:100%}
/* =========================================================
   128. Badge/label - refined
   ========================================================= */
body.theme-coursera .badge{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:var(--radius-xl);font-size:var(--font-xs);font-weight:var(--weight-semibold);letter-spacing:.02em;transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast)}
body.theme-coursera .badge.new{background:linear-gradient(135deg,var(--color-brand),var(--color-info));color:var(--color-white);box-shadow:0 2px 6px color-mix(in srgb,var(--color-brand) 25%,transparent)}
body.theme-coursera .badge.hot{background:linear-gradient(135deg,var(--color-error),var(--color-error));color:var(--color-white)}
body.theme-coursera .badge.beta{background:var(--wine-soft);color:var(--wine)}
/* =========================================================
   129. Card corner ribbon
   ========================================================= */
body.theme-coursera .ribbon{position:absolute;top:12px;right:-28px;width:100px;padding:4px 0;background:linear-gradient(135deg,var(--color-brand),var(--color-info));color:var(--color-white);font-size:var(--font-xxs);font-weight:var(--weight-bold);text-align:center;letter-spacing:.1em;text-transform:uppercase;transform:rotate(45deg);box-shadow:0 2px 6px color-mix(in srgb,var(--color-brand) 30%,transparent);z-index:3}
/* =========================================================
   130. Hover lift effect for interactive elements
   ========================================================= */
body.theme-coursera .hover-lift{transition:transform var(--transition-base) cubic-bezier(.4,0,.2,1), box-shadow var(--transition-base) cubic-bezier(.4,0,.2,1), border-color var(--transition-base) cubic-bezier(.4,0,.2,1)}
body.theme-coursera .hover-lift:hover{transform:translateY(-3px);box-shadow:0 12px 24px color-mix(in srgb,var(--color-ink) 10%,transparent)}
/* =========================================================
   131. Focus ring - consistent
   ========================================================= */
body.theme-coursera *:focus-visible{outline:none;box-shadow:0 0 0 3px color-mix(in srgb,var(--color-brand) 20%,transparent);border-radius:var(--radius-xs)}
/* =========================================================
   132. Smooth scroll behavior
   ========================================================= */
body.theme-coursera{scroll-behavior:smooth}
/* =========================================================
   133. Print styles
   ========================================================= */
@media print{body.theme-coursera .topbar,body.theme-coursera .hero-actions,body.theme-coursera .no-print{display:none}
body.theme-coursera .course-item,body.theme-coursera .source-book{break-inside:avoid;box-shadow:none;border:1px solid var(--color-line)}}
/* =========================================================
   200. Course Content & Display - Comprehensive Polish
   ========================================================= */
/* --- Eyebrow / step label --- */
/* --- Evidence cards - enhanced --- */
/* Evidence card top accent bar */
/* Evidence card type label */
/* Evidence card title */
/* Evidence card description */
/* Evidence card expand indicator */
/* Evidence card expanded detail */
body.theme-coursera .eyebrow{display:inline-flex;align-items:center;gap:8px;font:600 11px/1 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--color-brand);padding:6px 14px;background:color-mix(in srgb,var(--color-brand) 6%,transparent);border-radius:var(--radius-sm);border:1px solid color-mix(in srgb,var(--color-brand) 10%,transparent);margin-bottom:20px}
body.theme-coursera .eyebrow:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--color-brand);flex-shrink:0}
body.theme-coursera .evidence-stack{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px}
body.theme-coursera .evidence-card{background:var(--color-white);border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;cursor:pointer;min-height:240px;position:relative;overflow:hidden;transition:transform var(--transition-base) cubic-bezier(.4,0,.2,1), box-shadow var(--transition-base) cubic-bezier(.4,0,.2,1), border-color var(--transition-base) cubic-bezier(.4,0,.2,1);box-shadow:0 1px 3px color-mix(in srgb,var(--color-ink) 4%,transparent);display:flex;flex-direction:column;border-top:4px solid var(--color-success)}
body.theme-coursera .evidence-card:hover{transform:translateY(-4px);box-shadow:0 12px 32px color-mix(in srgb,var(--color-ink) 10%,transparent)}
body.theme-coursera .evidence-card.synthesis-card{border-top-color:var(--color-warning)}
body.theme-coursera .evidence-card.boundary-card{border-top-color:var(--color-brand)}
body.theme-coursera .evidence-card>span{display:inline-block;font:600 10px/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--color-muted);padding:4px 10px;background:var(--color-surface-2);border-radius:var(--radius-xs);margin-bottom:14px;width:fit-content}
body.theme-coursera .evidence-card.synthesis-card>span{background:var(--color-warning-soft);color:var(--color-warning-dark,var(--color-warning-dark))}
body.theme-coursera .evidence-card.boundary-card>span{background:var(--color-error-soft);color:var(--color-brand)}
body.theme-coursera .evidence-card h3{font:600 20px/1.4 var(--sans);color:var(--ink);margin:0 0 10px;letter-spacing:-.01em}
body.theme-coursera .evidence-card>p{color:var(--muted);font-size:var(--font-base);line-height:1.6;margin:0;flex:1}
body.theme-coursera .evidence-card::after{content:"展开详情 ↓";display:block;text-align:center;font-size:var(--font-sm);color:var(--color-brand);font-weight:var(--weight-medium);padding-top:14px;margin-top:auto;border-top:1px solid var(--line);transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast)}
body.theme-coursera .evidence-card.open::after{content:"收起 ↑";color:var(--muted)}
body.theme-coursera .evidence-card .more{display:none;border-top:1px dashed var(--line);padding-top:14px;margin-top:14px;font-size:var(--font-sm);color:var(--muted);line-height:1.6;background:color-mix(in srgb,var(--color-brand) 2%,transparent);padding:14px;border-radius:0 0 12px 12px;margin:14px -24px -24px}
body.theme-coursera .evidence-card.open .more{display:block;animation:evidenceExpand .3s ease}
@keyframes evidenceExpand{from{opacity:0;max-height:0} to{opacity:1;max-height:300px}}
/* --- Definition lab - enhanced --- */
/* Lab controls - enhanced sliders */
/* Custom range slider */
/* Verdict panel - enhanced */
/* --- Family tabs - enhanced --- */
/* Family panel - enhanced */
/* Family mark - enhanced */
/* --- Teachback / output area - enhanced --- */
/* Coach result - enhanced */
body.theme-coursera .definition-lab{display:grid;grid-template-columns:380px 1fr;gap:40px;align-items:center;margin-top:36px}
body.theme-coursera .definition-art{height:380px;background:linear-gradient(145deg,var(--color-surface-2),var(--color-steel-soft));border:1px solid var(--line);border-radius:var(--radius-xl);display:grid;place-items:center;position:relative;overflow:hidden;box-shadow:inset 0 2px 8px color-mix(in srgb,var(--color-ink) 4%,transparent)}
body.theme-coursera .definition-core{width:180px;height:180px;border-radius:50%;display:grid;place-content:center;text-align:center;z-index:2;color:var(--color-white);box-shadow:0 20px 40px color-mix(in srgb,var(--color-ink) 20%,transparent),inset -10px -15px 25px color-mix(in srgb,var(--color-ink) 30%,transparent);transition:background-color var(--transition-slow), color var(--transition-slow), border-color var(--transition-slow), transform var(--transition-slow), box-shadow var(--transition-slow), opacity var(--transition-slow)}
body.theme-coursera .definition-core b{font:700 22px var(--sans);letter-spacing:-.01em}
body.theme-coursera .definition-core small{font-size:var(--font-xs);opacity:.85}
body.theme-coursera .lab-control{margin:24px 0;padding:20px;background:var(--color-white);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:0 1px 3px color-mix(in srgb,var(--color-ink) 4%,transparent)}
body.theme-coursera .lab-control header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
body.theme-coursera .lab-control header b{font:600 15px var(--sans);color:var(--ink)}
body.theme-coursera .lab-control header output{font:700 18px var(--sans);color:var(--color-brand);background:color-mix(in srgb,var(--color-brand) 6%,transparent);padding:4px 12px;border-radius:var(--radius-sm)}
body.theme-coursera .lab-control input[type="range"]{width:100%;height:6px;-webkit-appearance:none;appearance:none;background:linear-gradient(90deg,var(--color-line),var(--color-brand));border-radius:3px;outline:none;cursor:pointer}
body.theme-coursera .lab-control input[type="range"]::-webkit-slider-thumb{-webkit-appearance:none;width:22px;height:22px;border-radius:50%;background:var(--color-white);border:3px solid var(--color-brand);box-shadow:0 2px 8px color-mix(in srgb,var(--color-brand) 25%,transparent);cursor:pointer;transition:border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast)}
body.theme-coursera .lab-control input[type="range"]::-webkit-slider-thumb:hover{transform:scale(1.15);box-shadow:0 4px 12px color-mix(in srgb,var(--color-brand) 35%,transparent)}
body.theme-coursera .verdict{border-left:4px solid var(--color-brand);padding:16px 20px;background:linear-gradient(90deg,color-mix(in srgb,var(--color-brand) 4%,transparent),transparent);border-radius:0 12px 12px 0;margin-top:24px;transition:transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base)}
body.theme-coursera .verdict b{font:600 16px var(--sans);color:var(--ink)}
body.theme-coursera .verdict p{color:var(--muted);font-size:var(--font-base);margin:6px 0 0}
body.theme-coursera .verdict.pass{border-left-color:var(--color-success);background:linear-gradient(90deg,rgba(24,128,56,.06),transparent)}
body.theme-coursera .verdict.pass b{color:var(--color-success)}
body.theme-coursera .family-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:24px 0}
body.theme-coursera .family-tabs button{border:1px solid var(--color-line);background:var(--color-white);border-radius:var(--radius-pill);padding:10px 18px;cursor:pointer;font:500 14px var(--sans);color:var(--color-body);transition:color var(--transition-fast), background-color var(--transition-fast)}
body.theme-coursera .family-tabs button:hover{border-color:var(--color-brand);color:var(--color-brand);background:#fefafb}
body.theme-coursera .family-tabs button.active{background:linear-gradient(135deg,var(--color-brand),var(--color-brand-hover));color:var(--color-white);border-color:transparent;box-shadow:0 2px 8px color-mix(in srgb,var(--color-brand) 25%,transparent)}
body.theme-coursera .family-panel{display:grid;grid-template-columns:240px 1fr;gap:28px;background:var(--color-white);border:1px solid var(--line);border-radius:var(--radius-xl);padding:32px;box-shadow:0 2px 8px color-mix(in srgb,var(--color-ink) 4%,transparent);transition:transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);align-items:start}
body.theme-coursera .family-panel h2{font:700 28px/1.3 var(--sans);color:var(--ink);letter-spacing:-.02em}
body.theme-coursera .family-panel p{color:var(--muted);font-size:var(--font-base);line-height:1.7}
body.theme-coursera .family-mark{width:170px;height:170px;border-radius:50%;display:grid;place-items:center;text-align:center;box-shadow:0 8px 24px color-mix(in srgb,var(--color-ink) 12%,transparent),inset 0 2px 8px rgba(255,255,255,.3);transition:background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base), opacity var(--transition-base);font:700 22px var(--sans)}
body.theme-coursera .family-mark:hover{transform:scale(1.05)}
body.theme-coursera .teachback{background:var(--color-white);border:1px solid var(--line);border-radius:var(--radius-xl);padding:28px;margin-top:28px;box-shadow:0 2px 8px color-mix(in srgb,var(--color-ink) 4%,transparent)}
body.theme-coursera .teachback textarea{width:100%;min-height:180px;border:1px solid var(--color-line);border-radius:var(--radius-lg);background:var(--color-surface);padding:18px;resize:vertical;font:400 15px/1.7 var(--sans);color:var(--ink);transition:border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast)}
body.theme-coursera .teachback textarea:focus{outline:none;border-color:var(--color-brand);box-shadow:0 0 0 3px color-mix(in srgb,var(--color-brand) 10%,transparent);background:var(--color-white)}
body.theme-coursera .teachback textarea::placeholder{color:var(--color-subtle)}
body.theme-coursera .coach-result{margin-top:20px;padding:20px 24px;background:linear-gradient(135deg,var(--color-success-soft),#ecfdf5);border:1px solid rgba(24,128,56,.15);border-radius:var(--radius-lg);animation:coachResultIn .4s cubic-bezier(.4,0,.2,1)}
@keyframes coachResultIn{from{opacity:0;transform:translateY(10px)} to{opacity:1;transform:none}}
/* Rubric lines - enhanced */
/* --- Completion card - enhanced --- */
body.theme-coursera .coach-result h3{margin:0 0 12px;font:700 20px var(--sans);color:var(--color-success);letter-spacing:-.01em}
body.theme-coursera .rubric-line{display:flex;align-items:center;gap:10px;font-size:var(--font-base);padding:8px 0;border-bottom:1px solid color-mix(in srgb,var(--color-ink) 4%,transparent)}
body.theme-coursera .rubric-line:last-child{border-bottom:0}
body.theme-coursera .rubric-line.hit{color:var(--color-success);font-weight:var(--weight-medium)}
body.theme-coursera .rubric-line.miss{color:var(--color-brand-hover);font-weight:var(--weight-medium)}
body.theme-coursera .completion-card{text-align:center;background:var(--color-white);border:1px solid var(--line);border-radius:var(--radius-xl);padding:56px 48px;box-shadow:0 4px 16px color-mix(in srgb,var(--color-ink) 6%,transparent);position:relative;overflow:hidden;animation:completionIn .5s cubic-bezier(.4,0,.2,1)}
@keyframes completionIn{from{opacity:0;transform:scale(.96)} to{opacity:1;transform:none}}
body.theme-coursera .completion-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--color-brand),var(--color-info),var(--color-brand))}
body.theme-coursera .completion-seal{width:88px;height:88px;margin:0 auto 24px;border:2px solid var(--color-brand);border-radius:50%;display:grid;place-items:center;color:var(--color-brand);font:700 26px var(--sans);background:color-mix(in srgb,var(--color-brand) 4%,transparent);box-shadow:0 4px 16px color-mix(in srgb,var(--color-brand) 15%,transparent);animation:sealPop .5s .2s cubic-bezier(.4,0,.2,1) backwards}
@keyframes sealPop{from{opacity:0;transform:scale(.5)} to{opacity:1;transform:scale(1)}}
/* Outcome list - enhanced */
/* Completion actions - enhanced */
/* --- Course module intro panel - enhanced --- */
/* --- Path banner - enhanced --- */
/* --- Course item header - enhanced --- */
/* --- Course meta tags - enhanced --- */
/* --- Course item title - enhanced --- */
/* --- Course item description - enhanced --- */
/* --- Course item card - 蓝色主题优化 --- */
/* 课程地图 segmented 控件蓝色主题 */
/* 课程地图搜索框蓝色主题 */
/* 课程结果计数 */
/* --- Source book cards - enhanced --- */
/* --- Cert showcase - enhanced --- */
/* --- Responsive: evidence stack --- */
body.theme-coursera .completion-card h1{font:700 36px/1.2 var(--sans);color:var(--ink);letter-spacing:-.02em;margin:0 0 12px}
body.theme-coursera .completion-card>p{color:var(--muted);font-size:var(--font-lg);line-height:1.6;max-width:500px;margin:0 auto 28px}
body.theme-coursera .outcome-list{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin:24px 0}
body.theme-coursera .outcome-list span{padding:8px 18px;background:color-mix(in srgb,var(--color-brand) 4%,transparent);border:1px solid color-mix(in srgb,var(--color-brand) 10%,transparent);border-radius:var(--radius-pill);font-size:var(--font-md);font-weight:var(--weight-medium);color:var(--color-brand);transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast)}
body.theme-coursera .outcome-list span:hover{background:color-mix(in srgb,var(--color-brand) 8%,transparent);transform:translateY(-1px)}
body.theme-coursera .completion-actions{display:flex;justify-content:center;gap:12px;margin-top:28px}
body.theme-coursera .module-intro{background:linear-gradient(145deg,var(--color-brand) 0%,var(--color-brand-hover) 50%,var(--color-brand-active) 100%);color:var(--color-white);border-radius:var(--radius-xl);padding:32px 28px;position:relative;overflow:hidden;box-shadow:0 8px 32px color-mix(in srgb,var(--color-brand) 20%,transparent)}
body.theme-coursera .module-intro::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--color-brand),var(--color-info))}
body.theme-coursera .module-intro::after{content:"";position:absolute;bottom:-40px;right:-40px;width:160px;height:160px;background:radial-gradient(circle,rgba(255,255,255,.06),transparent 70%);pointer-events:none}
body.theme-coursera .module-intro h2{font:700 24px/1.3 var(--sans);letter-spacing:-.01em;margin:0 0 8px;position:relative;z-index:1}
body.theme-coursera .module-intro p{font-size:var(--font-base);line-height:1.6;opacity:.85;position:relative;z-index:1}
body.theme-coursera .path-banner{background:var(--color-white);border:1px solid var(--color-line);border-radius:var(--radius-lg);padding:16px 24px;box-shadow:0 1px 3px color-mix(in srgb,var(--color-ink) 4%,transparent);margin-bottom:24px}
body.theme-coursera .course-item header{display:flex;align-items:center;gap:10px;margin-bottom:12px}
body.theme-coursera .course-item header small{font:700 11px/1 var(--sans);letter-spacing:.14em;color:var(--muted)}
body.theme-coursera .course-item .course-badge{font:600 11px/1 var(--sans);letter-spacing:.08em;color:var(--color-brand);padding:3px 10px;background:color-mix(in srgb,var(--color-brand) 6%,transparent);border-radius:var(--radius-xs);border:1px solid color-mix(in srgb,var(--color-brand) 10%,transparent)}
body.theme-coursera .course-meta{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap}
body.theme-coursera .course-meta .course-badge{font:500 12px var(--sans);color:var(--muted);padding:4px 10px;background:var(--color-surface-2);border-radius:var(--radius-sm);border:0}
body.theme-coursera .course-item h3{font:600 17px/1.4 var(--sans);color:var(--ink);letter-spacing:-.01em;margin:0 0 6px;transition:color var(--transition-fast)}
body.theme-coursera .course-item>div>p,body.theme-coursera .course-item p{color:var(--muted);font-size:var(--font-md);line-height:1.6;margin:0}
body.theme-coursera .course-item{background:var(--color-white);border:1px solid var(--color-line);border-radius:var(--radius-input);box-shadow:0 1px 2px color-mix(in srgb,var(--color-ink) 3%,transparent);transition:transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast)}
body.theme-coursera .course-item:after{border-color:color-mix(in srgb,var(--color-brand) 6%,transparent)}
body.theme-coursera .course-item.open:hover{transform:translateY(-2px);box-shadow:0 4px 16px color-mix(in srgb,var(--color-brand) 10%,transparent);border-color:color-mix(in srgb,var(--color-brand) 30%,transparent)}
body.theme-coursera .course-item h3:hover{color:var(--color-brand)}
body.theme-coursera .course-list{gap:12px}
body.theme-coursera .course-stage{gap:20px}
body.theme-coursera .segmented{background:var(--color-surface-2);border-radius:var(--radius-input);padding:4px}
body.theme-coursera .segmented button{color:var(--muted);border-radius:var(--radius-sm);font-weight:var(--weight-medium);transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast)}
body.theme-coursera .segmented button.active{background:var(--color-white);color:var(--color-brand);box-shadow:0 1px 3px color-mix(in srgb,var(--color-brand) 15%,transparent)}
body.theme-coursera .segmented button:hover:not(.active){background:color-mix(in srgb,var(--color-brand) 8%,transparent);color:var(--color-brand)}
body.theme-coursera .search-box{background:var(--color-white);border:1px solid var(--color-line);border-radius:var(--radius-input)}
body.theme-coursera .course-results{color:var(--muted)}
body.theme-coursera .source-book{background:var(--color-white);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:transform var(--transition-base) cubic-bezier(.4,0,.2,1), box-shadow var(--transition-base) cubic-bezier(.4,0,.2,1), border-color var(--transition-base) cubic-bezier(.4,0,.2,1);box-shadow:0 1px 3px color-mix(in srgb,var(--color-ink) 4%,transparent)}
body.theme-coursera .source-book h2{font:600 18px/1.3 var(--sans);color:var(--ink);letter-spacing:-.01em;margin:12px 0 8px;transition:color var(--transition-fast)}
body.theme-coursera .source-book:hover h2{color:var(--color-brand)}
body.theme-coursera .cert-showcase{background:linear-gradient(145deg,var(--color-surface),var(--color-surface-2));border:1px solid var(--line);border-radius:var(--radius-xl);padding:48px;position:relative;overflow:hidden;box-shadow:0 4px 16px color-mix(in srgb,var(--color-ink) 6%,transparent)}
body.theme-coursera .cert-showcase::before{content:"";position:absolute;top:0;left:0;width:6px;height:100%;background:linear-gradient(180deg,var(--color-brand),var(--color-brand-hover));z-index:2}
body.theme-coursera .cert-showcase .eyebrow{font:700 11px/1 var(--sans);letter-spacing:.18em;color:var(--color-brand);padding:6px 14px;background:color-mix(in srgb,var(--color-brand) 6%,transparent);border-radius:var(--radius-sm);border:1px solid color-mix(in srgb,var(--color-brand) 10%,transparent);display:inline-block;margin-bottom:16px}
body.theme-coursera .cert-showcase h2{font:700 clamp(28px,3.5vw,40px)/1.2 var(--sans);color:var(--ink);letter-spacing:-.02em;margin:0 0 12px}
body.theme-coursera .cert-showcase>p{color:var(--muted);font-size:var(--font-lg);line-height:1.7;max-width:600px}
@media(max-width:900px){body.theme-coursera .evidence-stack{grid-template-columns:1fr 1fr}
body.theme-coursera .definition-lab{grid-template-columns:1fr}
body.theme-coursera .definition-art{height:280px}}
@media(max-width:600px){body.theme-coursera .evidence-stack{grid-template-columns:1fr}
body.theme-coursera .family-panel{grid-template-columns:1fr}
body.theme-coursera .completion-card{padding:32px 20px}
body.theme-coursera .outcome-list{flex-direction:column;align-items:center}}
/* =========================================================
   201. Lesson 01 - Enhanced Components
   ========================================================= */
/* Lab hint text under sliders */
/* Lab insight box */
body.theme-coursera .lab-hint{font-size:var(--font-sm);color:var(--muted);margin-top:8px;padding:6px 10px;background:color-mix(in srgb,var(--color-brand) 4%,transparent);border-radius:var(--radius-sm);border-left:3px solid color-mix(in srgb,var(--color-brand) 20%,transparent)}
body.theme-coursera .lab-insight{margin-top:20px;padding:18px 22px;background:linear-gradient(135deg,var(--color-warning-soft),var(--color-warning-soft));border:1px solid rgba(180,130,0,.15);border-radius:var(--radius-md);animation:insightFadeIn .4s ease}
@keyframes insightFadeIn{from{opacity:0;transform:translateY(8px)} to{opacity:1;transform:none}}
/* Pass text in verdict */
/* Family progress bar */
/* Family facts list */
/* Family grades */
/* Family reference */
/* Teachback hint box */
body.theme-coursera .lab-insight h4{font:700 14px var(--sans);color:var(--color-warning-dark,var(--color-warning-dark));margin:0 0 8px}
body.theme-coursera .lab-insight p{font-size:var(--font-md);color:var(--color-warning-dark,var(--color-warning-dark));line-height:1.6;margin:0}
body.theme-coursera .verdict .pass-text{color:var(--color-success)}
body.theme-coursera .family-progress{display:flex;align-items:center;justify-content:space-between;margin-top:20px;padding:14px 20px;background:var(--color-white);border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:0 1px 3px color-mix(in srgb,var(--color-ink) 4%,transparent)}
body.theme-coursera .family-progress small{font-size:var(--font-md);color:var(--muted);font-weight:var(--weight-medium)}
body.theme-coursera .family-dots{display:flex;gap:8px}
body.theme-coursera .family-dot{width:12px;height:12px;border-radius:50%;background:var(--color-line);transition:background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base), opacity var(--transition-base)}
body.theme-coursera .family-dot.visited{background:var(--color-brand);box-shadow:0 0 0 3px color-mix(in srgb,var(--color-brand) 15%,transparent)}
body.theme-coursera .family-dot.active{background:var(--color-brand);transform:scale(1.3);box-shadow:0 0 0 4px color-mix(in srgb,var(--color-brand) 20%,transparent)}
body.theme-coursera .family-facts{margin-top:16px}
body.theme-coursera .family-facts h4{font:600 13px var(--sans);color:var(--ink);letter-spacing:.04em;text-transform:uppercase;margin:0 0 8px}
body.theme-coursera .family-facts ul{list-style:none;padding:0;margin:0;display:grid;gap:6px}
body.theme-coursera .family-facts li{font-size:var(--font-md);color:var(--muted);line-height:1.5;padding-left:18px;position:relative}
body.theme-coursera .family-facts li:before{content:"";position:absolute;left:0;top:8px;width:6px;height:6px;border-radius:50%;background:var(--color-brand)}
body.theme-coursera .family-grades{margin-top:14px}
body.theme-coursera .family-grades h4{font:600 13px var(--sans);color:var(--ink);letter-spacing:.04em;text-transform:uppercase;margin:0 0 6px}
body.theme-coursera .family-grades p{font:600 15px var(--sans);color:var(--color-brand);margin:0}
body.theme-coursera .family-ref{display:block;margin-top:14px;font-size:var(--font-xs);color:var(--muted);padding-top:10px;border-top:1px solid var(--line)}
body.theme-coursera .teachback-hint{margin-bottom:16px;padding:18px 22px;background:linear-gradient(135deg,var(--color-info-soft),var(--color-info-soft));border:1px solid color-mix(in srgb,var(--color-brand) 10%,transparent);border-radius:var(--radius-md)}
body.theme-coursera .teachback-hint b{display:block;font:700 14px var(--sans);color:var(--color-brand-hover);margin-bottom:10px}
body.theme-coursera .teachback-hint ol{padding-left:20px;margin:0}
body.theme-coursera .teachback-hint li{font-size:var(--font-md);color:var(--color-brand-active);line-height:1.7;margin-bottom:4px}
/* =========================================================
   300. Auth Enhancement - Input Enhancements
   ========================================================= */
/* Password visibility toggle button (eye icon) */
/* Input with left icon padding */
/* Input real-time validation states */
/* Floating label effect on focus */
body.theme-coursera .auth-field-wrapper{position:relative}
body.theme-coursera .auth-toggle-password{position:absolute;right:12px;top:50%;transform:translateY(-50%);background:none;border:none;color:var(--muted);cursor:pointer;padding:4px;font-size:var(--font-lg);line-height:1;transition:color var(--transition-fast) cubic-bezier(.4,0,.2,1);z-index:2}
body.theme-coursera .auth-toggle-password:hover{color:var(--ink)}
body.theme-coursera .auth-toggle-password:focus-visible{outline:2px solid var(--wine);outline-offset:2px;border-radius:var(--radius-xs)}
body.theme-coursera .auth-input--with-icon{padding-left:42px}
body.theme-coursera .auth-input-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:var(--font-base);pointer-events:none;transition:color var(--transition-fast) cubic-bezier(.4,0,.2,1)}
body.theme-coursera .auth-input.is-valid{border-color:var(--green);background:var(--green-soft)}
body.theme-coursera .auth-input.is-valid:focus{box-shadow:0 0 0 3px rgba(24,128,56,.12)}
body.theme-coursera .auth-input.is-invalid{border-color:var(--red);background:var(--red-soft)}
body.theme-coursera .auth-input.is-invalid:focus{box-shadow:0 0 0 3px rgba(209,50,18,.12)}
body.theme-coursera .auth-field--float{position:relative}
body.theme-coursera .auth-field--float .auth-float-label{position:absolute;left:14px;top:50%;transform:translateY(-50%);font-size:var(--font-base);color:var(--muted);pointer-events:none;transition:border-color var(--transition-fast) cubic-bezier(.4,0,.2,1), box-shadow var(--transition-fast) cubic-bezier(.4,0,.2,1), background-color var(--transition-fast) cubic-bezier(.4,0,.2,1);background:var(--paper);padding:0 4px;z-index:1}
body.theme-coursera .auth-field--float .auth-input:focus~.auth-float-label,body.theme-coursera .auth-field--float .auth-input:not(:placeholder-shown)~.auth-float-label{top:-1px;transform:translateY(-50%);font-size:var(--font-xs);font-weight:var(--weight-semibold);color:var(--wine);letter-spacing:.02em}
/* =========================================================
   301. Auth Enhancement - Password Strength Indicator
   ========================================================= */
/* Weak - red */
/* Medium - orange/amber */
/* Strong - green */
/* Very strong - dark green */
body.theme-coursera .auth-strength{margin-top:8px}
body.theme-coursera .auth-strength-bar{display:flex;gap:4px;height:4px;border-radius:var(--radius-xs);overflow:hidden;background:var(--line)}
body.theme-coursera .auth-strength-seg{flex:1;border-radius:var(--radius-xs);background:var(--line);transition:background var(--transition-base) cubic-bezier(.4,0,.2,1)}
body.theme-coursera .auth-strength[data-level="1"] .auth-strength-seg:nth-child(1){background:var(--red)}
body.theme-coursera .auth-strength[data-level="2"] .auth-strength-seg:nth-child(-n+2){background:var(--amber)}
body.theme-coursera .auth-strength[data-level="3"] .auth-strength-seg:nth-child(-n+3){background:var(--green)}
body.theme-coursera .auth-strength[data-level="4"] .auth-strength-seg{background:var(--color-success)}
body.theme-coursera .auth-strength-text{font-size:var(--font-sm);margin-top:4px;font-weight:var(--weight-medium);transition:color var(--transition-fast)}
body.theme-coursera .auth-strength[data-level="1"] .auth-strength-text{color:var(--red)}
body.theme-coursera .auth-strength[data-level="2"] .auth-strength-text{color:var(--amber)}
body.theme-coursera .auth-strength[data-level="3"] .auth-strength-text{color:var(--green)}
body.theme-coursera .auth-strength[data-level="4"] .auth-strength-text{color:var(--color-success)}
/* =========================================================
   302. Auth Enhancement - Form Enhancements
   ========================================================= */
/* Form error - improved with icon, red bg, rounded, slide-in */
body.theme-coursera .form-error{display:flex;align-items:center;gap:8px;padding:12px 16px;background:var(--red-soft);border:1px solid color-mix(in srgb,var(--color-error) 18%,transparent);border-radius:var(--radius-input);font-size:var(--font-md);color:var(--red);font-weight:var(--weight-medium);line-height:1.5;animation:authErrorSlideIn var(--transition-slow) cubic-bezier(.4,0,.2,1)}
body.theme-coursera .form-error::before{content:"\26A0";/* warning triangle */
  font-size:var(--font-base);flex-shrink:0}
@keyframes authErrorSlideIn{from{opacity:0;transform:translateY(-8px)} to{opacity:1;transform:none}}
/* Form success */
body.theme-coursera .form-success{display:flex;align-items:center;gap:8px;padding:12px 16px;background:var(--green-soft);border:1px solid color-mix(in srgb,var(--color-success) 18%,transparent);border-radius:var(--radius-input);font-size:var(--font-md);color:var(--green);font-weight:var(--weight-medium);line-height:1.5;animation:authSuccessSlideIn var(--transition-slow) cubic-bezier(.4,0,.2,1)}
body.theme-coursera .form-success::before{content:"\2713";/* checkmark */
  font-size:var(--font-base);font-weight:var(--weight-bold);flex-shrink:0}
@keyframes authSuccessSlideIn{from{opacity:0;transform:translateY(-8px)} to{opacity:1;transform:none}}
/* Form help text */
/* Custom "remember phone" checkbox */
/* "Forgot password" link */
/* Registration step indicator */
body.theme-coursera .form-help{font-size:var(--font-sm);color:var(--muted);line-height:1.5;margin-top:6px;padding-left:2px}
body.theme-coursera .form-help a{color:var(--wine);text-decoration:none;font-weight:var(--weight-medium);transition:color var(--transition-fast)}
body.theme-coursera .form-help a:hover{color:var(--wine-dark);text-decoration:underline}
body.theme-coursera .auth-remember{display:flex;align-items:center;gap:10px;cursor:pointer;user-select:none;font-size:var(--font-md);color:var(--muted)}
body.theme-coursera .auth-remember input[type="checkbox"]{appearance:none;-webkit-appearance:none;width:18px;height:18px;border:2px solid var(--line-strong);border-radius:var(--radius-xs);background:var(--paper);cursor:pointer;transition:border-color var(--transition-fast) cubic-bezier(.4,0,.2,1), box-shadow var(--transition-fast) cubic-bezier(.4,0,.2,1), background-color var(--transition-fast) cubic-bezier(.4,0,.2,1);position:relative;flex-shrink:0}
body.theme-coursera .auth-remember input[type="checkbox"]:checked{background:var(--wine);border-color:var(--wine)}
body.theme-coursera .auth-remember input[type="checkbox"]:checked::after{content:"";position:absolute;left:5px;top:2px;width:5px;height:9px;border:solid var(--color-white);border-width:0 2px 2px 0;transform:rotate(45deg)}
body.theme-coursera .auth-remember input[type="checkbox"]:focus-visible{outline:2px solid var(--wine);outline-offset:2px}
body.theme-coursera .auth-forgot{font-size:var(--font-md);color:var(--wine);text-decoration:none;font-weight:var(--weight-medium);transition:color var(--transition-fast)}
body.theme-coursera .auth-forgot:hover{color:var(--wine-dark);text-decoration:underline}
body.theme-coursera .auth-steps{display:flex;align-items:center;justify-content:center;gap:0;margin-bottom:24px}
body.theme-coursera .auth-step{display:flex;align-items:center;gap:0}
body.theme-coursera .auth-step-num{width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:var(--font-md);font-weight:var(--weight-semibold);background:var(--paper-2);color:var(--muted);border:2px solid var(--line);transition:background-color var(--transition-base) cubic-bezier(.4,0,.2,1), color var(--transition-base) cubic-bezier(.4,0,.2,1), border-color var(--transition-base) cubic-bezier(.4,0,.2,1), transform var(--transition-base) cubic-bezier(.4,0,.2,1), box-shadow var(--transition-base) cubic-bezier(.4,0,.2,1), opacity var(--transition-base) cubic-bezier(.4,0,.2,1)}
body.theme-coursera .auth-step.active .auth-step-num{background:var(--wine);color:var(--color-white);border-color:var(--wine);box-shadow:0 0 0 4px color-mix(in srgb,var(--color-brand) 15%,transparent)}
body.theme-coursera .auth-step.done .auth-step-num{background:var(--green);color:var(--color-white);border-color:var(--green)}
body.theme-coursera .auth-step-line{width:40px;height:2px;background:var(--line);transition:background var(--transition-base) cubic-bezier(.4,0,.2,1)}
body.theme-coursera .auth-step.done+.auth-step-line,body.theme-coursera .auth-step-line.done{background:var(--green)}
body.theme-coursera .auth-step-label{font-size:var(--font-xs);color:var(--muted);margin-top:4px;text-align:center;font-weight:var(--weight-medium)}
body.theme-coursera .auth-step.active .auth-step-label{color:var(--wine);font-weight:var(--weight-semibold)}
/* =========================================================
   303. Auth Enhancement - Loading States
   ========================================================= */
/* Button loading state - spinner + text change */
body.theme-coursera .auth-submit{position:relative;overflow:hidden;transition:background-color var(--transition-base) cubic-bezier(.4,0,.2,1), color var(--transition-base) cubic-bezier(.4,0,.2,1), border-color var(--transition-base) cubic-bezier(.4,0,.2,1), transform var(--transition-base) cubic-bezier(.4,0,.2,1), box-shadow var(--transition-base) cubic-bezier(.4,0,.2,1), opacity var(--transition-base) cubic-bezier(.4,0,.2,1)}
body.theme-coursera .auth-submit.is-loading{pointer-events:none;opacity:.85;color:transparent}
body.theme-coursera .auth-submit.is-loading::after{content:"";position:absolute;width:20px;height:20px;border:2px solid rgba(255,255,255,.3);border-top-color:var(--color-white);border-radius:50%;top:50%;left:50%;margin-left:-10px;margin-top:-10px;animation:authSpinner .6s linear infinite}
@keyframes authSpinner{to{transform:rotate(360deg)}}
/* Login button disabled + loading */
/* Submit button hover / active / disabled enhanced */
body.theme-coursera .auth-submit:disabled{background:var(--line-strong);color:var(--muted-light);cursor:not-allowed;box-shadow:none}
body.theme-coursera .auth-submit.is-loading:disabled{background:var(--wine-dark)}
body.theme-coursera .auth-submit:not(:disabled):hover{background:var(--wine-dark);transform:translateY(-1px);box-shadow:0 4px 12px color-mix(in srgb,var(--color-brand) 25%,transparent)}
body.theme-coursera .auth-submit:not(:disabled):active{transform:translateY(0);box-shadow:0 2px 6px color-mix(in srgb,var(--color-brand) 20%,transparent)}
/* =========================================================
   304. Auth Enhancement - Login Success Animation
   ========================================================= */
/* Checkmark animation after successful login */
body.theme-coursera .auth-success-check{display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
body.theme-coursera .auth-success-check svg{width:64px;height:64px}
body.theme-coursera .auth-success-check .check-circle{fill:none;stroke:var(--green);stroke-width:2;stroke-dasharray:166;stroke-dashoffset:166;animation:authCheckCircle .6s .1s cubic-bezier(.4,0,.2,1) forwards}
body.theme-coursera .auth-success-check .check-mark{fill:none;stroke:var(--green);stroke-width:3;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:48;stroke-dashoffset:48;animation:authCheckMark .4s .5s cubic-bezier(.4,0,.2,1) forwards}
@keyframes authCheckCircle{to{stroke-dashoffset:0}}
@keyframes authCheckMark{to{stroke-dashoffset:0}}
/* Auth success text */
body.theme-coursera .auth-success-text{text-align:center;animation:authSuccessFadeIn .5s .7s cubic-bezier(.4,0,.2,1) backwards}
body.theme-coursera .auth-success-text h3{font-size:20px;font-weight:var(--weight-semibold);color:var(--ink);margin:0 0 6px}
body.theme-coursera .auth-success-text p{font-size:var(--font-base);color:var(--muted);margin:0}
@keyframes authSuccessFadeIn{from{opacity:0;transform:translateY(10px)} to{opacity:1;transform:none}}
/* Page transition overlay */
body.theme-coursera .auth-transition{position:fixed;inset:0;background:var(--wine);z-index:9999;opacity:0;pointer-events:none;transition:opacity .3s cubic-bezier(.4,0,.2,1)}
body.theme-coursera .auth-transition.is-active{opacity:1;pointer-events:auto}
/* =========================================================
   305. Auth Enhancement - Role Selection Cards
   ========================================================= */
/* Checkmark badge on selected card */
body.theme-coursera .auth-roles{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:16px 0}
body.theme-coursera .auth-role-card{position:relative;display:flex;flex-direction:column;align-items:center;gap:8px;padding:16px 12px;background:var(--paper);border:2px solid var(--line);border-radius:10px;cursor:pointer;transition:background-color var(--transition-base) cubic-bezier(.4,0,.2,1), color var(--transition-base) cubic-bezier(.4,0,.2,1), border-color var(--transition-base) cubic-bezier(.4,0,.2,1), transform var(--transition-base) cubic-bezier(.4,0,.2,1), box-shadow var(--transition-base) cubic-bezier(.4,0,.2,1), opacity var(--transition-base) cubic-bezier(.4,0,.2,1);user-select:none}
body.theme-coursera .auth-role-card:hover{border-color:var(--line-strong);transform:translateY(-2px);box-shadow:0 4px 12px color-mix(in srgb,var(--color-ink) 6%,transparent)}
body.theme-coursera .auth-role-card:active{transform:translateY(0)}
body.theme-coursera .auth-role-card.is-selected{border-color:var(--wine);background:var(--wine-soft);box-shadow:0 0 0 3px color-mix(in srgb,var(--color-brand) 10%,transparent)}
body.theme-coursera .auth-role-card.is-selected::after{content:"\2713";position:absolute;top:6px;right:6px;width:20px;height:20px;border-radius:50%;background:var(--wine);color:var(--color-white);font-size:var(--font-xs);font-weight:var(--weight-bold);display:flex;align-items:center;justify-content:center;animation:authRoleCheckIn .25s cubic-bezier(.4,0,.2,1)}
@keyframes authRoleCheckIn{from{transform:scale(0)} to{transform:scale(1)}}
body.theme-coursera .auth-role-icon{font-size:28px;line-height:1}
body.theme-coursera .auth-role-label{font-size:var(--font-md);font-weight:var(--weight-medium);color:var(--ink);text-align:center}
body.theme-coursera .auth-role-card.is-selected .auth-role-label{color:var(--wine);font-weight:var(--weight-semibold)}
/* =========================================================
   306. Auth Enhancement - Company Activation Code Input
   ========================================================= */
/* Activation code valid state */
/* Activation code invalid state */
body.theme-coursera .auth-code-input{font-family:var(--font-mono);font-size:18px;font-weight:var(--weight-semibold);letter-spacing:.25em;text-transform:uppercase;text-align:center;padding:14px 16px;border:2px solid var(--line);border-radius:var(--radius-input);background:var(--paper);color:var(--ink);transition:border-color var(--transition-base) cubic-bezier(.4,0,.2,1), box-shadow var(--transition-base) cubic-bezier(.4,0,.2,1), background-color var(--transition-base) cubic-bezier(.4,0,.2,1);width:100%;max-width:320px}
body.theme-coursera .auth-code-input::placeholder{font-family:var(--sans);font-size:var(--font-md);letter-spacing:.04em;text-transform:none;font-weight:400;color:var(--muted-light)}
body.theme-coursera .auth-code-input:focus{border-color:var(--wine);box-shadow:0 0 0 3px color-mix(in srgb,var(--color-brand) 10%,transparent);outline:none}
body.theme-coursera .auth-code-input.is-valid{border-color:var(--green);background:var(--green-soft);box-shadow:0 0 0 3px rgba(24,128,56,.1)}
body.theme-coursera .auth-code-input.is-invalid{border-color:var(--red);background:var(--red-soft);box-shadow:0 0 0 3px rgba(209,50,18,.1);animation:authCodeShake .4s cubic-bezier(.4,0,.2,1)}
@keyframes authCodeShake{0%,100%{transform:translateX(0)} 20%{transform:translateX(-6px)} 40%{transform:translateX(6px)} 60%{transform:translateX(-4px)} 80%{transform:translateX(4px)}}
/* =========================================================
   307. Auth Enhancement - Mobile Responsive
   ========================================================= */
@media(max-width:767px){/* Auth card: hide aside, single column */
/* If aside is shown as compact header on mobile */
/* Auth tabs: horizontally scrollable */
/* Form fields: full width on small screens */
/* Role cards: 2x2 grid on mobile */
/* Step indicator: smaller on mobile */
/* Activation code input: smaller on mobile */
/* Submit button: full width */
/* Password strength bar */
body.theme-coursera .auth-card{border-radius:var(--radius-md)}
body.theme-coursera .auth-card>.row,body.theme-coursera .auth-card>[class*="col-"]{display:flex;flex-direction:column}
body.theme-coursera .auth-aside{display:none}
body.theme-coursera .auth-aside--compact{display:block;padding:20px 20px 16px;text-align:center}
body.theme-coursera .auth-aside--compact h2{font-size:18px;margin:8px 0 4px}
body.theme-coursera .auth-aside--compact p,body.theme-coursera .auth-aside--compact .auth-points{display:none}
body.theme-coursera .auth-main{padding:20px 16px}
body.theme-coursera .auth-tabs{overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
body.theme-coursera .auth-tabs::-webkit-scrollbar{display:none}
body.theme-coursera .auth-tabs button{white-space:nowrap;padding:10px 14px;font-size:var(--font-md);flex:none}
body.theme-coursera .auth-main .form-group,body.theme-coursera .auth-main .auth-field-wrapper,body.theme-coursera .auth-main .auth-field--float{width:100%}
body.theme-coursera .auth-main input,body.theme-coursera .auth-main select,body.theme-coursera .auth-main textarea{width:100%;font-size:var(--font-lg)}
body.theme-coursera .auth-roles{grid-template-columns:repeat(2,1fr);gap:10px}
body.theme-coursera .auth-role-card{padding:14px 10px}
body.theme-coursera .auth-step-num{width:26px;height:26px;font-size:var(--font-sm)}
body.theme-coursera .auth-step-line{width:24px}
body.theme-coursera .auth-code-input{font-size:var(--font-lg);max-width:100%}
body.theme-coursera .auth-submit{width:100%}
body.theme-coursera .auth-strength{max-width:100%}}
/* Extra small screens */
@media(max-width:374px){body.theme-coursera .auth-role-card .auth-role-icon{font-size:22px}
body.theme-coursera .auth-role-card .auth-role-label{font-size:var(--font-sm)}
body.theme-coursera .auth-main{padding:16px 12px}}
/* =========================================================
   Section 308 · Auth JS Components
   ========================================================= */
/* Input icon wrap */
/* Password toggle */
/* Input hint */
/* Form row between (remember + forgot) */
/* Custom checkbox */
/* Forgot password link */
/* Password strength indicator */
/* Role cards */
/* Button spinner */
body.theme-coursera .input-icon-wrap{position:relative;display:flex;align-items:center}
body.theme-coursera .input-icon-wrap input{width:100%;padding-left:40px;padding-right:42px}
body.theme-coursera .input-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--muted);pointer-events:none;flex-shrink:0}
body.theme-coursera .pwd-toggle{position:absolute;right:4px;top:50%;transform:translateY(-50%);background:transparent;border:0;padding:6px;cursor:pointer;color:var(--muted);border-radius:var(--radius-xs);transition:color var(--transition-fast), background .15s ease;display:grid;place-items:center}
body.theme-coursera .pwd-toggle:hover{color:var(--wine);background:var(--wine-soft)}
body.theme-coursera .pwd-toggle .eye-open,body.theme-coursera .pwd-toggle .eye-closed{display:block}
body.theme-coursera .pwd-toggle .eye-closed{display:none}
body.theme-coursera .pwd-toggle.show-closed .eye-open{display:none}
body.theme-coursera .pwd-toggle.show-closed .eye-closed{display:block}
body.theme-coursera .input-hint{display:block;font-size:var(--font-xs);color:var(--muted);min-height:16px;margin-top:4px;transition:color var(--transition-fast)}
body.theme-coursera .input-hint.warn{color:var(--red)}
body.theme-coursera .form-row-between{display:flex;align-items:center;justify-content:space-between;margin:12px 0 16px;gap:8px}
body.theme-coursera .checkbox-label{display:flex;align-items:center;gap:8px;font-size:var(--font-md);color:var(--muted);cursor:pointer;user-select:none}
body.theme-coursera .checkbox-label input[type="checkbox"]{appearance:none;-webkit-appearance:none;width:16px;height:16px;border:1.5px solid var(--line-strong);border-radius:3px;background:var(--color-white);cursor:pointer;transition:border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);flex-shrink:0;position:relative}
body.theme-coursera .checkbox-label input[type="checkbox"]:checked{background:var(--wine);border-color:var(--wine)}
body.theme-coursera .checkbox-label input[type="checkbox"]:checked::after{content:"";position:absolute;left:4px;top:1px;width:5px;height:9px;border:solid var(--color-white);border-width:0 1.5px 1.5px 0;transform:rotate(45deg)}
body.theme-coursera .auth-switch{font-size:var(--font-sm);color:var(--wine);cursor:pointer;background:transparent;border:0;padding:0;text-decoration:underline;text-underline-offset:2px}
body.theme-coursera .auth-switch:hover{color:var(--wine-dark)}
body.theme-coursera .pwd-strength{display:flex;align-items:center;gap:10px;margin-top:6px}
body.theme-coursera .pwd-strength-bar{flex:1;height:4px;background:var(--line);border-radius:var(--radius-pill);overflow:hidden}
body.theme-coursera .pwd-strength-fill{display:block;height:100%;width:0;border-radius:var(--radius-pill);transition:width var(--transition-base), background .3s ease}
body.theme-coursera .pwd-strength-fill[data-level="1"]{width:25%;background:var(--red)}
body.theme-coursera .pwd-strength-fill[data-level="2"]{width:50%;background:var(--amber)}
body.theme-coursera .pwd-strength-fill[data-level="3"]{width:75%;background:var(--green)}
body.theme-coursera .pwd-strength-fill[data-level="4"]{width:100%;background:var(--color-success)}
body.theme-coursera .pwd-strength-text{font-size:var(--font-xs);font-weight:var(--weight-medium);white-space:nowrap;transition:color .3s ease}
body.theme-coursera .pwd-strength-text[data-level="1"]{color:var(--red)}
body.theme-coursera .pwd-strength-text[data-level="2"]{color:var(--amber)}
body.theme-coursera .pwd-strength-text[data-level="3"]{color:var(--green)}
body.theme-coursera .pwd-strength-text[data-level="4"]{color:var(--color-success)}
body.theme-coursera .role-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:16px}
body.theme-coursera .role-card{background:var(--color-white);border:1.5px solid var(--line);border-radius:var(--radius-input);padding:12px 8px;text-align:center;cursor:pointer;transition:background-color var(--transition-fast) cubic-bezier(.4,0,.2,1), color var(--transition-fast) cubic-bezier(.4,0,.2,1), border-color var(--transition-fast) cubic-bezier(.4,0,.2,1), transform var(--transition-fast) cubic-bezier(.4,0,.2,1), box-shadow var(--transition-fast) cubic-bezier(.4,0,.2,1), opacity var(--transition-fast) cubic-bezier(.4,0,.2,1)}
body.theme-coursera .role-card:hover{border-color:var(--wine-soft);transform:translateY(-1px);box-shadow:0 4px 12px color-mix(in srgb,var(--color-ink) 6%,transparent)}
body.theme-coursera .role-card.selected{border-color:var(--wine);background:var(--wine-soft)}
body.theme-coursera .role-card svg{display:block;margin:0 auto 6px;color:var(--muted)}
body.theme-coursera .role-card.selected svg{color:var(--wine)}
body.theme-coursera .role-card b{display:block;font-size:var(--font-sm);font-weight:var(--weight-semibold);color:var(--ink)}
body.theme-coursera .role-card small{font-size:var(--font-xxs);color:var(--muted)}
body.theme-coursera .btn-spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:var(--color-white);border-radius:50%;animation:authSpin .6s linear infinite;vertical-align:middle;margin-right:6px}
@keyframes authSpin{to{transform:rotate(360deg)}}
/* Submit button success state */
/* Auth brand logo */
/* Code preview enhancements */
/* Mobile: role cards 2x2 */
body.theme-coursera .auth-submit.success{background:var(--green);pointer-events:none}
body.theme-coursera .auth-brand-logo{display:flex;align-items:center;gap:10px;margin-bottom:4px;position:relative;z-index:1}
body.theme-coursera .auth-brand-logo svg{flex-shrink:0}
body.theme-coursera .code-preview-header{display:flex;align-items:center;gap:8px;margin-bottom:8px}
body.theme-coursera .code-preview-header svg{color:var(--wine);flex-shrink:0}
body.theme-coursera .code-preview-header span{font-size:var(--font-md);color:var(--muted)}
body.theme-coursera .code-preview-value{font-family:var(--font-mono);font-size:22px;font-weight:var(--weight-bold);letter-spacing:3px;color:var(--wine);background:var(--wine-soft);padding:8px 16px;border-radius:var(--radius-sm);display:inline-block}
@media(max-width:767px){body.theme-coursera .role-cards{grid-template-columns:repeat(2,1fr)}}
/* =========================================================
   115. 天眼查企业查询样式
   ========================================================= */
.tyc-search-btn{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;font-size:var(--font-sm);font-weight:var(--weight-medium);color:var(--wine);background:var(--wine-soft);border:1px solid var(--wine);border-radius:var(--radius-xs);cursor:pointer;transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);margin-left:8px;vertical-align:middle}
.tyc-search-btn:hover{background:var(--wine);color:var(--color-white)}
.tyc-search-btn:disabled{opacity:.6;cursor:not-allowed}
.btn-spinner{display:inline-block;width:12px;height:12px;border:2px solid currentColor;border-top-color:transparent;border-radius:50%;animation:spin .6s linear infinite;margin-right:4px}
@keyframes spin{to{transform:rotate(360deg)}}
.tyc-input-wrap{position:relative;z-index:10}
.tyc-results{position:absolute;top:100%;left:0;right:0;background:var(--color-white);border:1px solid var(--line);border-radius:var(--radius-input);box-shadow:0 8px 24px color-mix(in srgb,var(--color-ink) 12%,transparent);z-index:200;max-height:360px;overflow-y:auto;margin-top:4px}
/* Ensure autocomplete dropdown is not clipped */
.auth-main{overflow:visible!important}
.form-grid{overflow:visible}
.tyc-loading{padding:24px;text-align:center;color:var(--muted);font-size:var(--font-base)}
.tyc-spinner{display:inline-block;width:20px;height:20px;border:2px solid var(--line);border-top-color:var(--wine);border-radius:50%;animation:spin .8s linear infinite;margin-right:8px;vertical-align:middle}
.tyc-empty{padding:24px;text-align:center;color:var(--muted);font-size:var(--font-base)}
.tyc-result-item{padding:14px 16px;border-bottom:1px solid var(--line);cursor:pointer;transition:background .15s ease}
.tyc-result-item:last-child{border-bottom:none}
.tyc-result-item:hover{background:var(--color-surface-2)}
.tyc-item-name{font-size:var(--font-base);font-weight:var(--weight-semibold);color:var(--ink);display:flex;align-items:center;gap:8px;margin-bottom:6px}
.tyc-status{font-size:var(--font-xs);font-weight:400;padding:2px 6px;border-radius:3px;background:var(--color-surface-2);color:var(--color-subtle)}
.tyc-status.tyc-active{background:var(--color-success-soft);color:var(--color-success)}
.tyc-item-info{font-size:var(--font-sm);color:var(--muted);display:flex;gap:16px;flex-wrap:wrap;margin-bottom:6px}
.tyc-item-info span{display:inline-flex;align-items:center;gap:4px}
.tyc-item-addr{font-size:var(--font-sm);color:var(--muted);line-height:1.5;margin-bottom:10px;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.tyc-select-btn{display:inline-block;padding:6px 14px;font-size:var(--font-sm);font-weight:var(--weight-medium);color:var(--color-white);background:var(--wine);border:none;border-radius:var(--radius-xs);cursor:pointer;transition:background .15s ease}
.tyc-select-btn:hover{background:var(--wine-dark)}
.tyc-tag{display:inline-block;padding:1px 6px;font-size:var(--font-xxs);font-weight:var(--weight-medium);color:var(--color-muted);background:var(--color-surface-3);border:1px solid var(--color-line);border-radius:var(--radius-pill);margin-left:6px;vertical-align:middle;letter-spacing:.02em}
.tyc-filled{background:var(--color-surface);color:var(--ink)}
.tyc-filled::placeholder{color:var(--color-subtle)}
.tyc-source-tag{font-size:var(--font-xxs);font-weight:var(--weight-medium);padding:1px 6px;border-radius:var(--radius-pill);background:#e8f0fe;color:#1a73e8;white-space:nowrap}
.tyc-source-tag.tyc-online{background:#e6f4ea;color:#137333}
.tyc-item-hint{font-size:var(--font-xs);color:var(--color-muted);line-height:1.5;margin-bottom:8px;padding:6px 10px;background:var(--color-surface-2);border-radius:var(--radius-sm);border-left:2px solid #f9ab00}
.tyc-more-manual{padding:10px 16px;text-align:center;font-size:var(--font-xs);color:var(--color-muted);border-top:1px solid var(--color-line);background:var(--color-surface-2)}
.tyc-manual-btn,.tyc-manual-btn-inline{background:none;border:none;color:var(--wine);cursor:pointer;font-size:inherit;font-weight:var(--weight-semibold);padding:0 2px;text-decoration:underline}
.tyc-manual-btn:hover,.tyc-manual-btn-inline:hover{color:var(--wine-dark)}
/* =========================================================
   116. 三维晶体结构图与记忆口诀
   ========================================================= */
/* Responsive: 小屏幕时晶体图在上方 */
body.theme-coursera .family-3d-wrap{width:100%;max-width:220px;aspect-ratio:1;display:grid;place-items:center;background:linear-gradient(145deg,var(--color-surface-2),var(--color-surface-3));border-radius:var(--radius-lg);border:1px solid var(--color-line);box-shadow:0 4px 16px color-mix(in srgb,var(--color-ink) 6%,transparent);margin:0 auto}
body.theme-coursera .crystal-svg{width:90%;height:90%;filter:drop-shadow(0 2px 8px color-mix(in srgb,var(--color-ink) 8%,transparent))}
body.theme-coursera .family-mnemonic{margin:14px 0 16px;padding:14px 16px;background:linear-gradient(135deg,var(--color-warning-soft),var(--color-warning-soft));border:1px solid rgba(183,121,31,.2);border-radius:10px}
body.theme-coursera .mnemonic-label{display:inline-block;font-size:var(--font-xs);font-weight:var(--weight-bold);color:var(--color-medal-gold-text);background:var(--color-medal-gold);padding:2px 8px;border-radius:var(--radius-xs);margin-bottom:10px;letter-spacing:1px}
body.theme-coursera .mnemonic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:6px 12px}
body.theme-coursera .mnemonic-item{font-size:var(--font-base);font-weight:var(--weight-semibold);color:var(--color-warning-dark,var(--color-warning-dark));position:relative;padding-left:16px}
body.theme-coursera .mnemonic-item::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:6px;height:6px;background:var(--color-warning);border-radius:50%}
body.theme-coursera .family-facts{margin-top:16px}
body.theme-coursera .family-facts h4{font:600 13px var(--sans);color:var(--ink);letter-spacing:.04em;text-transform:uppercase;margin:0 0 8px}
body.theme-coursera .family-facts ul{list-style:none;padding:0;margin:0;display:grid;gap:6px}
body.theme-coursera .family-facts li{font-size:var(--font-md);color:var(--muted);line-height:1.5;padding-left:18px;position:relative}
body.theme-coursera .family-facts li:before{content:"";position:absolute;left:0;top:8px;width:6px;height:6px;border-radius:50%;background:var(--color-brand)}
body.theme-coursera .family-grades{margin-top:12px}
body.theme-coursera .family-grades h4{font:600 13px var(--sans);color:var(--ink);letter-spacing:.04em;text-transform:uppercase;margin:0 0 6px}
body.theme-coursera .family-grades p{font-size:var(--font-md);color:var(--color-brand);font-weight:var(--weight-semibold)}
body.theme-coursera .family-ref{display:block;margin-top:12px;color:var(--color-subtle);font-size:var(--font-xs)}
@media(max-width:1050px){body.theme-coursera .family-panel{grid-template-columns:1fr}body.theme-coursera .family-3d-wrap{max-width:200px;margin:0 auto 12px}}
@media(max-width:767px){body.theme-coursera .family-panel{grid-template-columns:1fr;text-align:center}
body.theme-coursera .family-3d-wrap{max-width:180px;margin:0 auto 16px}
body.theme-coursera .crystal-svg{width:90%;height:90%}
body.theme-coursera .mnemonic-grid{grid-template-columns:repeat(2,1fr)}
body.theme-coursera .mnemonic-item{text-align:left}}
/* =========================================================
   117. 复述输出强化样式
   ========================================================= */
body.theme-coursera .hint-tags{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 12px}
body.theme-coursera .hint-tag{display:inline-block;padding:4px 10px;font-size:var(--font-sm);font-weight:var(--weight-medium);color:var(--wine);background:var(--wine-soft);border:1px solid color-mix(in srgb,var(--color-brand) 20%,transparent);border-radius:var(--radius-lg);cursor:pointer;transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);user-select:none}
body.theme-coursera .hint-tag:hover{background:var(--wine);color:var(--color-white);transform:translateY(-1px)}
body.theme-coursera .hint-tag:active{transform:translateY(0)}
body.theme-coursera .hint-note{display:flex;align-items:flex-start;gap:8px;padding:10px 12px;background:var(--color-info-soft);border:1px solid color-mix(in srgb,var(--color-brand) 20%,transparent);border-radius:var(--radius-input);font-size:var(--font-sm);color:var(--color-info);line-height:1.5;margin-top:8px}
body.theme-coursera .hint-note svg{flex-shrink:0;margin-top:1px}
body.theme-coursera .teachback-input{margin-top:16px}
body.theme-coursera .teachback-input textarea{width:100%;min-height:140px;padding:14px 16px;font-size:var(--font-base);line-height:1.7;border:1.5px solid var(--line);border-radius:10px;resize:vertical;font-family:inherit;transition:border-color .15s ease;box-sizing:border-box}
body.theme-coursera .teachback-input textarea:focus{outline:none;border-color:var(--wine)}
/* =========================================================
   118. 课程小测验样式
   ========================================================= */
/* 完成页面 */
body.theme-coursera .quiz-card{max-width:640px;margin:0 auto;background:var(--color-white);border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px 32px;box-shadow:0 4px 20px color-mix(in srgb,var(--color-ink) 6%,transparent)}
body.theme-coursera .quiz-progress{height:6px;background:var(--color-surface-2);border-radius:3px;overflow:hidden;margin-bottom:24px}
body.theme-coursera .quiz-progress-bar{height:100%;background:linear-gradient(90deg,var(--wine),var(--color-info));border-radius:3px;transition:width var(--transition-base)}
body.theme-coursera .quiz-question{font-size:20px;font-weight:var(--weight-semibold);color:var(--ink);line-height:1.5;margin-bottom:20px}
body.theme-coursera .quiz-options{display:flex;flex-direction:column;gap:16px}
body.theme-coursera .quiz-option{display:flex;align-items:center;gap:14px;padding:18px 22px;background:var(--color-surface-2);border:1.5px solid var(--color-line);border-radius:12px;cursor:pointer;text-align:left;font-size:var(--font-base);color:var(--ink);transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);font-family:inherit;width:100%}
body.theme-coursera .quiz-option:hover:not(:disabled){border-color:var(--wine);background:var(--wine-soft);transform:translateX(4px)}
body.theme-coursera .quiz-option:disabled{cursor:default}
body.theme-coursera .quiz-option.correct{border-color:var(--color-success);background:var(--color-success-soft);color:var(--color-success-dark,#166534)}
body.theme-coursera .quiz-option.wrong{border-color:var(--color-error);background:var(--color-error-soft);color:var(--color-error)}
body.theme-coursera .quiz-letter{width:28px;height:28px;display:grid;place-items:center;background:var(--color-line);border-radius:50%;font-size:var(--font-md);font-weight:var(--weight-bold);color:var(--color-muted);flex-shrink:0;transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast)}
body.theme-coursera .quiz-option:hover:not(:disabled) .quiz-letter{background:var(--wine);color:var(--color-white)}
body.theme-coursera .quiz-option.correct .quiz-letter{background:var(--color-success);color:var(--color-white)}
body.theme-coursera .quiz-option.wrong .quiz-letter{background:var(--color-error);color:var(--color-white)}
body.theme-coursera .quiz-feedback{margin-top:20px;padding:16px 18px;border-radius:10px}
body.theme-coursera .quiz-feedback.ok{background:var(--color-success-soft);border:1px solid rgba(24,128,56,.15)}
body.theme-coursera .quiz-feedback.no{background:var(--color-error-soft);border:1px solid rgba(209,50,18,.15)}
body.theme-coursera .quiz-feedback h4{margin:0 0 8px;font-size:var(--font-base);font-weight:var(--weight-semibold)}
body.theme-coursera .quiz-feedback.ok h4{color:var(--color-success-dark,#166534)}
body.theme-coursera .quiz-feedback.no h4{color:var(--color-error)}
body.theme-coursera .quiz-feedback p{margin:0 0 12px;font-size:var(--font-base);line-height:1.6;color:var(--ink)}
body.theme-coursera .quiz-complete{max-width:600px;margin:0 auto;text-align:center}
body.theme-coursera .quiz-score{display:flex;align-items:center;gap:28px;margin-bottom:28px;padding:28px;background:linear-gradient(135deg,var(--color-success-soft),var(--color-success-soft));border:1px solid rgba(24,128,56,.15);border-radius:var(--radius-lg)}
body.theme-coursera .score-ring{position:relative;width:120px;height:120px;flex-shrink:0}
body.theme-coursera .score-ring svg{width:100%;height:100%}
body.theme-coursera .score-ring span{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:22px;font-weight:var(--weight-bold);color:var(--color-success-dark,#166534)}
body.theme-coursera .quiz-score h2{margin:0 0 8px;font-size:24px;color:var(--color-success-dark,#166534);text-align:left}
body.theme-coursera .quiz-score p{margin:0;font-size:var(--font-base);line-height:1.7;color:var(--color-body);text-align:left}
body.theme-coursera .quiz-actions{display:flex;gap:12px;justify-content:center}
@media(max-width:767px){body.theme-coursera .quiz-card{padding:20px 18px}
body.theme-coursera .quiz-question{font-size:var(--font-lg)}
body.theme-coursera .quiz-score{flex-direction:column;text-align:center;gap:16px}
body.theme-coursera .quiz-score h2,body.theme-coursera .quiz-score p{text-align:center}}
/* =========================================================
   119. 每日打卡样式
   ========================================================= */
/* 首页打卡卡片 */
body.theme-coursera .daily-checkin{margin:20px 0 24px;padding:20px 24px;background:linear-gradient(135deg,var(--color-success-soft),var(--color-success-soft));border:1px solid rgba(24,128,56,.15);border-radius:var(--radius-md);text-align:center}
body.theme-coursera .checkin-streak{display:flex;align-items:baseline;justify-content:center;gap:10px;margin-bottom:8px}
body.theme-coursera .checkin-streak span{font-size:var(--font-base);color:var(--color-success-dark,#166534);font-weight:var(--weight-medium)}
body.theme-coursera .checkin-streak b{font-size:32px;font-weight:var(--weight-bold);color:var(--color-success)}
body.theme-coursera .checkin-tip{font-size:var(--font-md);color:var(--color-success);font-weight:var(--weight-medium)}
body.theme-coursera .home-checkin-card{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;background:linear-gradient(135deg,var(--color-warning-soft),var(--color-warning-soft));border:1px solid rgba(183,121,31,.2);border-radius:var(--radius-md);margin-bottom:16px}
body.theme-coursera .home-checkin-card.checked{background:linear-gradient(135deg,var(--color-success-soft),var(--color-success-soft));border-color:rgba(24,128,56,.15)}
body.theme-coursera .checkin-left{display:flex;align-items:center;gap:14px}
body.theme-coursera .checkin-icon{width:44px;height:44px;display:grid;place-items:center;background:var(--color-white);border-radius:var(--radius-md);font-size:22px;box-shadow:0 2px 8px color-mix(in srgb,var(--color-ink) 6%,transparent)}
body.theme-coursera .checkin-info h4{margin:0 0 2px;font-size:var(--font-base);font-weight:var(--weight-semibold);color:var(--color-warning-dark,var(--color-warning-dark))}
body.theme-coursera .home-checkin-card.checked .checkin-info h4{color:var(--color-success-dark,#166534)}
body.theme-coursera .checkin-info p{margin:0;font-size:var(--font-sm);color:var(--color-warning)}
body.theme-coursera .home-checkin-card.checked .checkin-info p{color:var(--color-success)}
body.theme-coursera .checkin-badge{padding:6px 14px;background:var(--color-warning);color:var(--color-white);font-size:var(--font-md);font-weight:var(--weight-semibold);border-radius:var(--radius-xl)}
body.theme-coursera .home-checkin-card.checked .checkin-badge{background:var(--color-success)}
/* =========================================================
   120. Hero区学习进度排名（Podium）
   ========================================================= */
body.theme-coursera .ranking-podium{background:linear-gradient(145deg,var(--color-white),var(--color-surface-2));border:1px solid var(--color-line);border-radius:var(--radius-xl);padding:24px;box-shadow:0 10px 40px color-mix(in srgb,var(--color-ink) 8%,transparent);height:100%;display:flex;flex-direction:column}
body.theme-coursera .podium-title{text-align:center;margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid var(--color-line)}
body.theme-coursera .podium-title .eyebrow{font-size:var(--font-xs);letter-spacing:2px;color:var(--color-subtle);font-weight:var(--weight-semibold);display:block;margin-bottom:6px}
body.theme-coursera .podium-title h3{margin:0;font-size:20px;font-weight:var(--weight-bold);color:var(--ink)}
body.theme-coursera .podium-list{flex:1;display:flex;flex-direction:column;gap:10px}
body.theme-coursera .podium-row{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:var(--radius-md);background:var(--color-white);border:1px solid var(--color-line);transition:transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast)}
body.theme-coursera .podium-row:hover{transform:translateX(4px);box-shadow:0 4px 12px color-mix(in srgb,var(--color-ink) 6%,transparent)}
body.theme-coursera .podium-row.rank-gold{background:linear-gradient(135deg,var(--color-warning-soft),var(--color-warning-soft));border-color:rgba(183,121,31,.2)}
body.theme-coursera .podium-row.rank-silver{background:linear-gradient(135deg,var(--color-surface-2),var(--color-surface-2));border-color:var(--color-line-strong)}
body.theme-coursera .podium-row.rank-bronze{background:linear-gradient(135deg,var(--color-surface-2),var(--color-surface-2));border-color:var(--color-line-strong)}
body.theme-coursera .podium-medal{width:36px;height:36px;display:grid;place-items:center;font-size:20px;flex-shrink:0}
body.theme-coursera .podium-info{flex:1;min-width:0}
body.theme-coursera .podium-info b{display:block;font-size:var(--font-base);font-weight:var(--weight-semibold);color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
body.theme-coursera .podium-info small{font-size:var(--font-xs);color:var(--color-subtle);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block}
body.theme-coursera .podium-progress{display:flex;align-items:center;gap:8px;flex-shrink:0}
body.theme-coursera .podium-bar{width:60px;height:6px;background:var(--color-line);border-radius:3px;overflow:hidden}
body.theme-coursera .podium-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--color-brand-hover),var(--color-brand),var(--color-info));border-radius:3px}
body.theme-coursera .rank-gold .podium-bar i{background:linear-gradient(90deg,var(--color-brand-hover),var(--color-brand))}
body.theme-coursera .rank-silver .podium-bar i{background:linear-gradient(90deg,var(--color-brand),var(--color-info))}
body.theme-coursera .rank-bronze .podium-bar i{background:linear-gradient(90deg,var(--color-info),var(--color-info))}
body.theme-coursera .podium-progress span{font-size:var(--font-sm);font-weight:var(--weight-semibold);color:var(--ink);min-width:32px;text-align:right}
body.theme-coursera .podium-footer{display:flex;justify-content:space-between;align-items:center;margin-top:16px;padding-top:12px;border-top:1px solid var(--color-line);font-size:var(--font-sm);color:var(--color-subtle)}
body.theme-coursera .podium-footer .mini-link{color:var(--color-brand);font-weight:var(--weight-medium)}
/* =========================================================
   121. 知识库（Knowledge Base）
   ========================================================= */
/* ghost-btn - 与primary-btn协调的次要按钮样式 */
/* 作者专著特殊样式 */
body.theme-coursera .kb-tabs{display:flex;gap:8px;margin:0 auto 20px;max-width:800px;flex-wrap:wrap;justify-content:center;padding:0 20px}
body.theme-coursera .kb-tabs button{padding:8px 18px;border:1px solid var(--line);background:var(--color-white);border-radius:var(--radius-xl);font-size:var(--font-base);font-weight:var(--weight-medium);color:var(--color-muted);cursor:pointer;transition:color var(--transition-fast), background-color var(--transition-fast);font-family:inherit}
body.theme-coursera .kb-tabs button:hover{border-color:var(--color-brand);color:var(--color-brand)}
body.theme-coursera .kb-tabs button.active{background:var(--color-brand);border-color:var(--color-brand);color:var(--color-white)}
body.theme-coursera .kb-toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;max-width:1200px;margin:0 auto 24px;padding:0 20px}
body.theme-coursera .kb-toolbar .search-box{max-width:400px;flex:1}
body.theme-coursera .primary-btn.small{padding:8px 16px;font-size:var(--font-md);gap:6px}
body.theme-coursera .ghost-btn{background:var(--color-white);border:1px solid var(--color-line);color:var(--ink);border-radius:var(--radius-input);font-weight:var(--weight-medium);padding:var(--space-3) var(--space-5);transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast)}
body.theme-coursera .ghost-btn:hover{background:color-mix(in srgb,var(--color-brand) 4%,transparent);border-color:var(--color-brand);color:var(--color-brand);box-shadow:0 1px 3px color-mix(in srgb,var(--color-ink) 8%,transparent)}
body.theme-coursera .book-read-badge{position:absolute;top:8px;right:8px;background:color-mix(in srgb,var(--color-ink) 60%,transparent);color:var(--color-white);font-size:var(--font-xxs);padding:3px 8px;border-radius:10px;font-weight:var(--weight-medium);z-index:2}
body.theme-coursera .source-book{position:relative}
body.theme-coursera .cover-read-overlay{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,color-mix(in srgb,var(--color-ink) 70%,transparent));color:var(--color-white);font-size:var(--font-xs);padding:20px 12px 10px;text-align:center;font-weight:var(--weight-medium)}
body.theme-coursera .source-detail-cover{position:relative;overflow:hidden}
body.theme-coursera .source-book.book-author .book-cover{background:linear-gradient(145deg,#7c3aed,#4c1d95)}
body.theme-coursera .source-book.book-author .book-cover img{opacity:.85}
/* =========================================================
   122. PDF阅读器（防下载）
   ========================================================= */
body.theme-coursera .pdf-studio{--studio-max-width:96vw}
body.theme-coursera .pdf-body{position:relative;flex:1;overflow:hidden;background:var(--color-surface-2);display:flex;align-items:flex-start;justify-content:center;padding:20px;user-select:none;-webkit-user-select:none}
body.theme-coursera .pdf-body iframe{width:100%;height:100%;border:none;background:var(--color-white);box-shadow:0 4px 20px color-mix(in srgb,var(--color-ink) 10%,transparent);transform-origin:top center;transition:transform .2s ease;pointer-events:auto}
body.theme-coursera .pdf-watermark{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) rotate(-30deg);font-size:48px;font-weight:var(--weight-bold);color:color-mix(in srgb,var(--color-ink) 4%,transparent);white-space:nowrap;pointer-events:none;z-index:1;letter-spacing:4px}
body.theme-coursera .pdf-footer{display:flex;justify-content:space-between;align-items:center;padding:10px 20px;background:var(--color-surface-2);border-top:1px solid var(--line);font-size:var(--font-sm);color:var(--color-subtle)}
body.theme-coursera .pdf-loading{position:absolute;top:0;left:0;right:0;bottom:0;background:rgba(241,245,249,.95);display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:10;gap:12px}
body.theme-coursera .pdf-loading-spinner{width:40px;height:40px;border:3px solid var(--color-line);border-top-color:var(--color-info);border-radius:50%;animation:pdfSpin 1s linear infinite}
@keyframes pdfSpin{to{transform:rotate(360deg)}}
body.theme-coursera .pdf-loading p{margin:0;font-size:var(--font-base);color:var(--color-muted);font-weight:var(--weight-medium)}
body.theme-coursera .pdf-loading small{font-size:var(--font-sm);color:var(--color-subtle)}
body.theme-coursera .studio-tools{display:flex;align-items:center;gap:4px}
body.theme-coursera .studio-tools .icon-btn{font-size:var(--font-md);font-weight:var(--weight-semibold)}
/* =========================================================
   123. 标准求上架表单
   ========================================================= */
body.theme-coursera .request-std-form{max-width:500px;margin:0 auto;padding:30px 20px}
body.theme-coursera .request-std-form .form-field{margin-bottom:16px}
body.theme-coursera .request-std-form label{display:block;font-size:var(--font-md);font-weight:var(--weight-medium);color:var(--ink);margin-bottom:6px}
body.theme-coursera .request-std-form input,body.theme-coursera .request-std-form textarea{width:100%;padding:10px 14px;border:1.5px solid var(--line);border-radius:var(--radius-input);font-size:var(--font-base);font-family:inherit;transition:border-color .15s ease;box-sizing:border-box;resize:vertical}
body.theme-coursera .request-std-form input:focus,body.theme-coursera .request-std-form textarea:focus{outline:none;border-color:var(--wine)}
body.theme-coursera .request-std-form .input-hint{display:block;font-size:var(--font-xs);color:var(--color-subtle);margin-top:4px}
body.theme-coursera .request-std-form .primary-btn{width:100%;justify-content:center;margin-top:8px}
body.theme-coursera .request-success{text-align:center;padding:20px;background:var(--color-success-soft);border:1px solid rgba(24,128,56,.15);border-radius:10px;margin-top:16px}
body.theme-coursera .request-success h4{margin:0 0 6px;color:var(--color-success-dark,#166534);font-size:var(--font-lg)}
body.theme-coursera .request-success p{margin:0;font-size:var(--font-md);color:var(--color-success);line-height:1.6}
@media(max-width:767px){body.theme-coursera .kb-toolbar{flex-direction:column;align-items:stretch}
body.theme-coursera .kb-tabs{gap:6px}
body.theme-coursera .kb-tabs button{padding:6px 12px;font-size:var(--font-sm)}}
/* =========================================================
   122. 主页标签页（Home Tabs）
   ========================================================= */
body.theme-coursera .home-tabs{display:flex;gap:8px;margin-bottom:20px;padding:6px;background:var(--color-surface-2);border-radius:var(--radius-lg);width:fit-content}
body.theme-coursera .home-tab{padding:10px 20px;border:none;background:transparent;border-radius:10px;font-size:var(--font-base);font-weight:var(--weight-medium);color:var(--color-muted);cursor:pointer;transition:color var(--transition-fast), background-color var(--transition-fast);white-space:nowrap}
body.theme-coursera .home-tab:hover{color:var(--color-body)}
body.theme-coursera .home-tab.active{background:var(--color-white);color:var(--color-brand);box-shadow:0 2px 8px color-mix(in srgb,var(--color-brand) 15%,transparent);font-weight:var(--weight-semibold)}
body.theme-coursera .home-tab-content{animation:fadeInUp .4s ease}
@keyframes fadeInUp{from{opacity:0;transform:translateY(10px)} to{opacity:1;transform:translateY(0)}}
body.theme-coursera .continue-card.full-width{margin-bottom:20px}
body.theme-coursera .dashboard-grid.two-col{grid-template-columns:1fr 1fr}
/* =========================================================
   123. 历史上的今天 & 每日一讲卡片
   ========================================================= */
body.theme-coursera .history-card,body.theme-coursera .story-card{background:linear-gradient(145deg,var(--color-white),var(--color-surface-2));border:1px solid var(--color-line);border-radius:var(--radius-xl);padding:28px;margin-bottom:20px;box-shadow:0 4px 20px color-mix(in srgb,var(--color-ink) 6%,transparent);position:relative;overflow:hidden}
body.theme-coursera .history-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--wine),var(--color-warning),#10b981)}
body.theme-coursera .story-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--color-info),#8b5cf6,#ec4899)}
body.theme-coursera .history-head,body.theme-coursera .story-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
body.theme-coursera .history-date{font-size:24px;font-weight:var(--weight-bold);color:var(--wine)}
body.theme-coursera .history-tag,body.theme-coursera .story-tag{display:inline-block;padding:4px 12px;background:linear-gradient(135deg,var(--color-warning-soft),rgba(183,121,31,.2));color:var(--color-warning-dark,var(--color-warning-dark));border-radius:var(--radius-pill);font-size:var(--font-sm);font-weight:var(--weight-semibold)}
body.theme-coursera .story-tag{background:linear-gradient(135deg,var(--color-brand-soft),color-mix(in srgb,var(--color-brand) 15%,transparent));color:var(--color-brand-hover)}
body.theme-coursera .story-day{font-size:var(--font-sm);color:var(--color-subtle);font-weight:var(--weight-medium)}
body.theme-coursera .history-card h4,body.theme-coursera .story-card h4{margin:0 0 12px;font-size:18px;font-weight:var(--weight-bold);color:var(--ink)}
body.theme-coursera .history-card p,body.theme-coursera .story-card p{margin:0 0 16px;font-size:var(--font-base);line-height:1.8;color:var(--color-muted)}
body.theme-coursera .history-foot,body.theme-coursera .story-foot{display:flex;justify-content:center;padding-top:16px;border-top:1px dashed var(--color-line);font-size:var(--font-md);color:var(--color-subtle);font-weight:var(--weight-medium)}
/* =========================================================
   124. 排名文字遮挡修复
   ========================================================= */
body.theme-coursera .podium-info b{white-space:normal;line-height:1.3;word-break:break-all}
body.theme-coursera .podium-info small{white-space:normal;line-height:1.4}
body.theme-coursera .podium-row{padding:12px}
body.theme-coursera .podium-info{min-width:0;flex:1}
@media(max-width:767px){body.theme-coursera .home-tabs{width:100%;overflow-x:auto}
body.theme-coursera .home-tab{padding:8px 16px;font-size:var(--font-md);flex-shrink:0}
body.theme-coursera .dashboard-grid.two-col{grid-template-columns:1fr}
body.theme-coursera .history-card,body.theme-coursera .story-card{padding:20px}
body.theme-coursera .history-date{font-size:20px}}
/* =========================================================
   125. 排名文字遮挡优化修复
   ========================================================= */
/* 左侧排行榜优化 */
body.theme-coursera .podium-row{align-items:flex-start;padding:12px 14px}
body.theme-coursera .podium-medal{width:32px;height:32px;font-size:var(--font-lg);margin-top:2px}
body.theme-coursera .podium-info{padding-right:6px}
body.theme-coursera .podium-info b{white-space:normal;line-height:1.3;margin-bottom:2px}
body.theme-coursera .podium-info small{white-space:normal;line-height:1.4;font-size:var(--font-xs)}
body.theme-coursera .podium-progress{flex-direction:column;align-items:flex-end;gap:4px;flex-shrink:0;padding-top:2px}
body.theme-coursera .podium-bar{width:50px}
body.theme-coursera .podium-progress span{font-size:var(--font-xs);min-width:auto}
body.theme-coursera .home-ranking .ranking-info small{white-space:normal;line-height:1.4;text-overflow:clip;overflow:visible}
/* =========================================================
   126. 排名文字遮挡深度修复
   ========================================================= */
/* 左侧排行榜优化 */
body.theme-coursera .podium-row{display:grid;grid-template-columns:28px 1fr auto;gap:10px;align-items:start;padding:10px 12px}
body.theme-coursera .podium-medal{width:28px;height:28px;font-size:var(--font-base);margin-top:0}
body.theme-coursera .podium-info{min-width:0;padding-right:0}
body.theme-coursera .podium-info b{font-size:var(--font-md);line-height:1.3;margin-bottom:2px;white-space:normal;overflow:visible;text-overflow:clip}
body.theme-coursera .podium-info small{font-size:var(--font-xxs);line-height:1.3;white-space:normal;overflow:visible;text-overflow:clip;color:var(--color-muted)}
body.theme-coursera .podium-progress{flex-direction:column;align-items:flex-end;gap:3px;padding-top:2px;flex-shrink:0}
body.theme-coursera .podium-bar{width:45px;height:5px}
body.theme-coursera .podium-progress span{font-size:var(--font-xxs);font-weight:var(--weight-semibold);min-width:auto}
body.theme-coursera .home-ranking .ranking-item{align-items:start;padding:10px 8px}
body.theme-coursera .home-ranking .ranking-info{min-width:0}
body.theme-coursera .home-ranking .ranking-info b{margin-bottom:3px}
body.theme-coursera .home-ranking .ranking-info small{white-space:normal;line-height:1.4;text-overflow:clip;overflow:visible;margin-bottom:6px}
/* =========================================================
   127. 排名文字遮挡终极修复（高优先级）
   ========================================================= */
body.theme-coursera .ranking-podium .podium-row .podium-info small{white-space:normal;overflow:visible;text-overflow:clip;line-height:1.4;font-size:var(--font-xs);color:var(--color-muted);display:block}
body.theme-coursera .ranking-podium .podium-row .podium-info b{white-space:normal;overflow:visible;text-overflow:clip;line-height:1.3;font-size:var(--font-base);display:block;margin-bottom:2px}
body.theme-coursera .home-ranking .ranking-item .ranking-info small{white-space:normal;overflow:visible;text-overflow:clip;line-height:1.4}
/* =========================================================
   128. 登录注册标签统一风格 + 排名文字双主题修复
   ========================================================= */
/* 登录注册标签 - 统一为胶囊式，与知识库风格一致 */
/* 排名文字遮挡 - 双主题通用修复 */
/* 专业主题下排名行优化 */
/* 专注主题（classic）下排名行优化 */
body.theme-coursera .auth-tabs{display:flex;gap:8px;background:transparent;padding:0;border-radius:0;margin-bottom:28px;flex-wrap:wrap}
body.theme-coursera .auth-tabs button{flex:none;padding:8px 18px;border:1px solid var(--line);background:var(--color-white);border-radius:var(--radius-xl);font-size:var(--font-base);font-weight:var(--weight-medium);color:var(--color-muted);cursor:pointer;transition:color var(--transition-fast), background-color var(--transition-fast);font-family:inherit}
body.theme-coursera .auth-tabs button:hover{border-color:var(--wine);color:var(--wine)}
body.theme-coursera .auth-tabs button.active{background:var(--wine);border-color:var(--wine);color:var(--color-white);font-weight:var(--weight-semibold);box-shadow:none}
.ranking-row{align-items:center}
.ranking-row span,.ranking-row b{white-space:normal;overflow:visible;text-overflow:clip;word-break:break-all;line-height:1.4}
.ranking-row .progress-inline{white-space:nowrap}
body.theme-coursera .ranking-row{padding:14px 20px}
body.theme-coursera .ranking-row span:nth-child(3){min-width:0}
body.theme-classic .ranking-row{padding:14px 20px}
body.theme-classic .ranking-row span,body.theme-classic .ranking-row b{white-space:normal;overflow:visible;text-overflow:clip;word-break:break-all}
/* =========================================================
   129. 登录注册弹窗整体风格统一修复
   ========================================================= */
/* 左侧广告栏 - 确保酒红色品牌色 */
/* 右侧表单区域 */
/* 表单输入框统一风格 */
/* 主按钮统一酒红色 */
/* 专注主题下登录注册标签也用胶囊式 */
body.theme-coursera .auth-aside{background:linear-gradient(155deg,var(--color-brand),var(--color-brand-active))}
body.theme-coursera .auth-aside h2{color:var(--color-white)}
body.theme-coursera .auth-aside p{color:rgba(255,255,255,.75)}
body.theme-coursera .auth-points span{border:1px solid rgba(255,255,255,.18);border-radius:10px;color:var(--color-white)}
body.theme-coursera .auth-main{padding:30px}
body.theme-coursera #authForm h2{font:600 24px/1.3 var(--font-heading);color:var(--ink);margin:0 0 20px}
body.theme-coursera .form-field input,body.theme-coursera .form-field select{border:1px solid var(--line);background:var(--paper);border-radius:var(--radius-md);padding:12px 13px;font-size:var(--font-base);transition:border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast)}
body.theme-coursera .form-field input:focus,body.theme-coursera .form-field select:focus{border-color:var(--color-brand-hover);box-shadow:0 0 0 3px color-mix(in srgb,var(--color-brand) 8%,transparent)}
body.theme-coursera .auth-submit{background:var(--wine);color:var(--color-white);border:none;border-radius:var(--radius-md);padding:14px;font-size:var(--font-base);font-weight:var(--weight-semibold);cursor:pointer;transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast)}
body.theme-coursera .auth-submit:hover{background:var(--color-brand-hover)}
body.theme-classic .auth-tabs{display:flex;gap:8px;background:transparent;padding:0;margin-bottom:24px;flex-wrap:wrap}
body.theme-classic .auth-tabs button{flex:none;padding:8px 18px;border:1px solid var(--line);background:var(--color-white);border-radius:var(--radius-xl);font-size:var(--font-base);font-weight:var(--weight-medium);color:var(--color-muted);cursor:pointer;transition:color var(--transition-fast), background-color var(--transition-fast)}
body.theme-classic .auth-tabs button:hover{border-color:var(--wine);color:var(--wine)}
body.theme-classic .auth-tabs button.active{background:var(--wine);border-color:var(--wine);color:var(--color-white);font-weight:var(--weight-semibold)}
/* =========================================================
   130. 登录注册按钮和输入框终极修复
   ========================================================= */
/* 输入框样式统一 */
/* 表单标题 */
/* 错误提示 */
body.theme-coursera .auth-submit{background:var(--wine);background-image:none;color:var(--color-white);border:none;border-radius:var(--radius-md);padding:14px;font-size:var(--font-base);font-weight:var(--weight-semibold);cursor:pointer;transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);box-shadow:none;width:100%;margin-top:18px}
body.theme-coursera .auth-submit:hover{background:var(--color-brand-hover);background-image:none}
body.theme-coursera .form-field input,html body.theme-coursera .form-field select{border:1px solid var(--line);background:var(--paper);background-image:none;border-radius:var(--radius-md);padding:12px 13px;font-size:var(--font-base);color:var(--ink);transition:border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);box-shadow:none}
body.theme-coursera .form-field input:focus,html body.theme-coursera .form-field select:focus{border-color:var(--color-brand-hover);box-shadow:0 0 0 3px color-mix(in srgb,var(--color-brand) 8%,transparent)}
body.theme-coursera #authForm h2{font:600 24px/1.3 var(--font-heading);color:var(--ink);margin:0 0 20px}
body.theme-coursera .form-error{color:var(--color-error);font-size:var(--font-sm);margin-top:var(--space-2)}
/* =========================================================
   131. 登录注册按钮最终修复 - 强制覆盖蓝色渐变
   ========================================================= */
/* 登录标签也用胶囊式 */
/* 输入框 */
body.theme-coursera .auth-studio .auth-submit,html body.theme-coursera #authStudio .auth-submit{background-color:var(--wine);background-image:none;background:var(--wine);color:var(--color-white);border:none;border-radius:var(--radius-md);padding:14px;font-size:var(--font-base);font-weight:var(--weight-semibold);cursor:pointer;transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);box-shadow:none;width:100%;margin-top:18px;height:auto;line-height:1.5;text-shadow:none}
body.theme-coursera .auth-studio .auth-submit:hover,html body.theme-coursera #authStudio .auth-submit:hover{background-color:var(--color-brand-hover);background-image:none;background:var(--color-brand-hover)}
body.theme-coursera .auth-studio .auth-tabs,html body.theme-coursera #authStudio .auth-tabs{display:flex;gap:8px;background:transparent;padding:0;margin-bottom:28px;flex-wrap:wrap;border:none}
body.theme-coursera .auth-studio .auth-tabs button,html body.theme-coursera #authStudio .auth-tabs button{flex:none;padding:8px 18px;border:1px solid var(--line);background:var(--color-white);background-image:none;border-radius:var(--radius-xl);font-size:var(--font-base);font-weight:var(--weight-medium);color:var(--color-muted);cursor:pointer;transition:color var(--transition-fast), background-color var(--transition-fast);box-shadow:none;height:auto;line-height:1.5;text-shadow:none}
body.theme-coursera .auth-studio .auth-tabs button:hover,html body.theme-coursera #authStudio .auth-tabs button:hover{border-color:var(--wine);color:var(--wine)}
body.theme-coursera .auth-studio .auth-tabs button.active,html body.theme-coursera #authStudio .auth-tabs button.active{background:var(--wine);background-image:none;border-color:var(--wine);color:var(--color-white);font-weight:var(--weight-semibold);box-shadow:none}
body.theme-coursera .auth-studio .form-field input,html body.theme-coursera #authStudio .form-field input,html body.theme-coursera .auth-studio .form-field select,html body.theme-coursera #authStudio .form-field select{border:1px solid var(--line);background:var(--color-white);background-image:none;border-radius:var(--radius-md);padding:12px 13px;font-size:var(--font-base);color:var(--ink);transition:border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);box-shadow:none;height:auto;line-height:1.5}
body.theme-coursera .auth-studio .form-field input:focus,html body.theme-coursera #authStudio .form-field input:focus,html body.theme-coursera .auth-studio .form-field select:focus,html body.theme-coursera #authStudio .form-field select:focus{border-color:var(--color-brand-hover);box-shadow:0 0 0 3px color-mix(in srgb,var(--color-brand) 8%,transparent)}
/* =========================================================
   132. 登录注册弹窗内主按钮终极修复
   ========================================================= */
/* 直接覆盖弹窗内的 primary-btn */
body.theme-coursera #authStudio .primary-btn,html body.theme-coursera .auth-studio .primary-btn,html body.theme-coursera #authBody .primary-btn{background-color:var(--wine);background-image:none;background:var(--wine);color:var(--color-white);border:none;border-radius:var(--radius-md);padding:14px;font-size:var(--font-base);font-weight:var(--weight-semibold);cursor:pointer;transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);box-shadow:none;width:100%;margin-top:18px;height:auto;line-height:1.5;text-shadow:none}
body.theme-coursera #authStudio .primary-btn:hover,html body.theme-coursera .auth-studio .primary-btn:hover,html body.theme-coursera #authBody .primary-btn:hover{background-color:var(--color-brand-hover);background-image:none;background:var(--color-brand-hover)}
/* =========================================================
   133. 登录注册按钮最终修复 - 覆盖ux.css的
   ========================================================= */
body.theme-coursera #authStudio button.primary-btn,body.theme-coursera .auth-studio button.primary-btn,body.theme-coursera #authStudio .primary-btn.ripple,body.theme-coursera .auth-studio .primary-btn.ripple{background-color:var(--wine);background-image:none;background:var(--wine);color:var(--color-white);border:none;border-radius:var(--radius-md);padding:14px;font-size:var(--font-base);font-weight:var(--weight-semibold);cursor:pointer;transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);box-shadow:none;width:100%;margin-top:18px;height:auto;line-height:1.5;text-shadow:none}
body.theme-coursera #authStudio button.primary-btn:hover,body.theme-coursera .auth-studio button.primary-btn:hover{background-color:var(--color-brand-hover);background-image:none;background:var(--color-brand-hover)}
/* =========================================================
   134. 双主题排名文字遮挡终极修复 + 登录注册表单统一
   ========================================================= */
/* ---------- 专业主题（Coursera）Podium排名修复 ---------- */
/* ---------- 专注主题（Classic）Podium排名修复 ---------- */
/* ---------- 专业主题（Coursera）登录注册标签和按钮终极修复 ---------- */
/* 用更高优先级覆盖所有按钮样式 */
/* 登录注册主按钮 - 最高优先级覆盖 */
/* ---------- 专注主题（Classic）登录注册标签和按钮修复 ---------- */
/* 专注主题登录注册主按钮 */
body.theme-coursera .ranking-podium{height:auto;min-height:auto;overflow:visible}
body.theme-coursera .podium-list{gap:8px}
body.theme-coursera .podium-row{padding:10px 12px;min-height:auto}
body.theme-coursera .podium-info{min-width:0;flex:1}
body.theme-coursera .podium-info b{white-space:normal;overflow:visible;text-overflow:clip;word-break:break-all;line-height:1.3;font-size:var(--font-md)}
body.theme-coursera .podium-info small{white-space:normal;overflow:visible;text-overflow:clip;word-break:break-all;line-height:1.3;font-size:var(--font-xs);margin-top:2px}
body.theme-classic .ranking-podium{height:auto;min-height:auto;overflow:visible;background:linear-gradient(145deg,var(--color-surface),var(--color-surface));border:1px solid var(--color-line);border-radius:var(--radius-xl);padding:24px;box-shadow:0 10px 40px color-mix(in srgb,var(--color-ink) 8%,transparent);display:flex;flex-direction:column}
body.theme-classic .podium-title{text-align:center;margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid var(--color-line)}
body.theme-classic .podium-title .eyebrow{font-size:var(--font-xs);letter-spacing:2px;color:var(--color-subtle);font-weight:var(--weight-semibold);display:block;margin-bottom:6px}
body.theme-classic .podium-title h3{margin:0;font-size:20px;font-weight:var(--weight-bold);color:#5c3d2e}
body.theme-classic .podium-list{flex:1;display:flex;flex-direction:column;gap:8px}
body.theme-classic .podium-row{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:var(--radius-md);background:var(--color-white);border:1px solid var(--color-line);transition:transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);min-height:auto}
body.theme-classic .podium-row:hover{transform:translateX(4px);box-shadow:0 4px 12px color-mix(in srgb,var(--color-ink) 6%,transparent)}
body.theme-classic .podium-row.rank-gold{background:linear-gradient(135deg,var(--color-warning-soft),var(--color-warning-soft));border-color:rgba(183,121,31,.2)}
body.theme-classic .podium-row.rank-silver{background:linear-gradient(135deg,var(--color-surface-2),var(--color-surface-2));border-color:var(--color-line-strong)}
body.theme-classic .podium-row.rank-bronze{background:linear-gradient(135deg,#fff7ed,#ffedd5);border-color:#fed7aa}
body.theme-classic .podium-medal{width:36px;height:36px;display:grid;place-items:center;font-size:20px;flex-shrink:0}
body.theme-classic .podium-info{flex:1;min-width:0}
body.theme-classic .podium-info b{display:block;font-size:var(--font-md);font-weight:var(--weight-semibold);color:#5c3d2e;white-space:normal;overflow:visible;text-overflow:clip;word-break:break-all;line-height:1.3}
body.theme-classic .podium-info small{font-size:var(--font-xs);color:var(--color-subtle);white-space:normal;overflow:visible;text-overflow:clip;word-break:break-all;display:block;line-height:1.3;margin-top:2px}
body.theme-classic .podium-progress{display:flex;align-items:center;gap:8px;flex-shrink:0}
body.theme-classic .podium-bar{width:60px;height:6px;background:var(--color-line);border-radius:3px;overflow:hidden}
body.theme-classic .podium-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--color-brand),#5c3d2e);border-radius:3px}
body.theme-classic .rank-gold .podium-bar i{background:linear-gradient(90deg,var(--color-warning),var(--color-warning))}
body.theme-classic .rank-silver .podium-bar i{background:linear-gradient(90deg,var(--color-subtle),var(--color-muted))}
body.theme-classic .rank-bronze .podium-bar i{background:linear-gradient(90deg,#f97316,#ea580c)}
body.theme-classic .podium-progress span{font-size:var(--font-sm);font-weight:var(--weight-semibold);color:#5c3d2e;min-width:32px;text-align:right}
body.theme-coursera #authStudio .auth-tabs button,html body.theme-coursera .auth-studio .auth-tabs button{background:var(--color-white);background-image:none;border:1px solid var(--line);border-radius:var(--radius-xl);padding:8px 18px;font-size:var(--font-base);font-weight:var(--weight-medium);color:var(--color-muted);box-shadow:none;text-shadow:none;height:auto;line-height:1.5;flex:none;cursor:pointer;transition:color var(--transition-fast), background-color var(--transition-fast)}
body.theme-coursera #authStudio .auth-tabs button:hover,html body.theme-coursera .auth-studio .auth-tabs button:hover{border-color:var(--wine);color:var(--wine);background:var(--color-white);background-image:none}
body.theme-coursera #authStudio .auth-tabs button.active,html body.theme-coursera .auth-studio .auth-tabs button.active{background:var(--wine);background-image:none;border-color:var(--wine);color:var(--color-white);font-weight:var(--weight-semibold);box-shadow:none}
body.theme-coursera #authStudio .primary-btn,html body.theme-coursera .auth-studio .primary-btn,html body.theme-coursera #authStudio button.primary-btn,html body.theme-coursera .auth-studio button.primary-btn,html body.theme-coursera #authStudio .auth-submit,html body.theme-coursera .auth-studio .auth-submit{background:var(--wine);background-color:var(--wine);background-image:none;color:var(--color-white);border:none;border-radius:var(--radius-md);padding:14px;font-size:var(--font-base);font-weight:var(--weight-semibold);cursor:pointer;transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);box-shadow:none;width:100%;margin-top:18px;height:auto;line-height:1.5;text-shadow:none}
body.theme-coursera #authStudio .primary-btn:hover,html body.theme-coursera .auth-studio .primary-btn:hover,html body.theme-coursera #authStudio button.primary-btn:hover,html body.theme-coursera .auth-studio button.primary-btn:hover{background:var(--color-brand-hover);background-color:var(--color-brand-hover);background-image:none}
body.theme-classic #authStudio .auth-tabs button,html body.theme-classic .auth-studio .auth-tabs button{background:var(--color-white);background-image:none;border:1px solid var(--color-line);border-radius:var(--radius-xl);padding:8px 18px;font-size:var(--font-base);font-weight:var(--weight-medium);color:var(--color-muted);box-shadow:none;text-shadow:none;height:auto;line-height:1.5;flex:none;cursor:pointer;transition:color var(--transition-fast), background-color var(--transition-fast)}
body.theme-classic #authStudio .auth-tabs button:hover,html body.theme-classic .auth-studio .auth-tabs button:hover{border-color:var(--color-brand);color:var(--color-brand);background:var(--color-white);background-image:none}
body.theme-classic #authStudio .auth-tabs button.active,html body.theme-classic .auth-studio .auth-tabs button.active{background:var(--color-brand);background-image:none;border-color:var(--color-brand);color:var(--color-white);font-weight:var(--weight-semibold);box-shadow:none}
body.theme-classic #authStudio .primary-btn,html body.theme-classic .auth-studio .primary-btn,html body.theme-classic #authStudio button.primary-btn,html body.theme-classic .auth-studio button.primary-btn,html body.theme-classic #authStudio .auth-submit,html body.theme-classic .auth-studio .auth-submit{background:var(--color-brand);background-color:var(--color-brand);background-image:none;color:var(--color-white);border:none;border-radius:var(--radius-md);padding:14px;font-size:var(--font-base);font-weight:var(--weight-semibold);cursor:pointer;transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);box-shadow:none;width:100%;margin-top:18px;height:auto;line-height:1.5;text-shadow:none}
body.theme-classic #authStudio .primary-btn:hover,html body.theme-classic .auth-studio .primary-btn:hover,html body.theme-classic #authStudio button.primary-btn:hover,html body.theme-classic .auth-studio button.primary-btn:hover{background:var(--color-brand-hover);background-color:var(--color-brand-hover);background-image:none}
/* =========================================================
   135. ID选择器终极覆盖 - 确保登录注册样式正确
   ========================================================= */
/* 专业主题 - 登录提交按钮 */
/* 专业主题 - 登录注册标签 */
/* 专注主题 - 登录提交按钮 */
/* 专注主题 - 登录注册标签 */
body.theme-coursera #authBody #loginSubmit.primary-btn,html body.theme-coursera #authBody #loginSubmit.auth-submit,html body.theme-coursera #authBody .primary-btn.auth-submit{background:var(--color-brand);background-color:var(--color-brand);background-image:none;color:var(--color-white);border:none;border-radius:var(--radius-md);padding:14px;font-size:var(--font-base);font-weight:var(--weight-semibold);cursor:pointer;transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);box-shadow:none;width:100%;margin-top:18px;height:auto;line-height:1.5;text-shadow:none}
body.theme-coursera #authBody #loginSubmit.primary-btn:hover,html body.theme-coursera #authBody #loginSubmit.auth-submit:hover{background:var(--color-brand-hover);background-color:var(--color-brand-hover);background-image:none}
body.theme-coursera #authBody .auth-tabs button{background:var(--color-white);background-image:none;border:1px solid var(--color-line);border-radius:var(--radius-xl);padding:8px 18px;font-size:var(--font-base);font-weight:var(--weight-medium);color:var(--color-muted);box-shadow:none;text-shadow:none;height:auto;line-height:1.5;flex:none;cursor:pointer;transition:color var(--transition-fast), background-color var(--transition-fast)}
body.theme-coursera #authBody .auth-tabs button:hover{border-color:var(--color-brand);color:var(--color-brand);background:var(--color-white);background-image:none}
body.theme-coursera #authBody .auth-tabs button.active{background:var(--color-brand);background-image:none;border-color:var(--color-brand);color:var(--color-white);font-weight:var(--weight-semibold);box-shadow:none}
body.theme-classic #authBody #loginSubmit.primary-btn,html body.theme-classic #authBody #loginSubmit.auth-submit,html body.theme-classic #authBody .primary-btn.auth-submit{background:var(--color-brand);background-color:var(--color-brand);background-image:none;color:var(--color-white);border:none;border-radius:var(--radius-md);padding:14px;font-size:var(--font-base);font-weight:var(--weight-semibold);cursor:pointer;transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);box-shadow:none;width:100%;margin-top:18px;height:auto;line-height:1.5;text-shadow:none}
body.theme-classic #authBody #loginSubmit.primary-btn:hover,html body.theme-classic #authBody #loginSubmit.auth-submit:hover{background:var(--color-brand-hover);background-color:var(--color-brand-hover);background-image:none}
body.theme-classic #authBody .auth-tabs button{background:var(--color-white);background-image:none;border:1px solid var(--color-line);border-radius:var(--radius-xl);padding:8px 18px;font-size:var(--font-base);font-weight:var(--weight-medium);color:var(--color-muted);box-shadow:none;text-shadow:none;height:auto;line-height:1.5;flex:none;cursor:pointer;transition:color var(--transition-fast), background-color var(--transition-fast)}
body.theme-classic #authBody .auth-tabs button:hover{border-color:var(--color-brand);color:var(--color-brand);background:var(--color-white);background-image:none}
body.theme-classic #authBody .auth-tabs button.active{background:var(--color-brand);background-image:none;border-color:var(--color-brand);color:var(--color-white);font-weight:var(--weight-semibold);box-shadow:none}
/* =========================================================
   136. 双主题排名卡片高度修复 - 防止文字被遮挡
   ========================================================= */
/* 专业主题 - hero-art容器高度自适应 */
/* 专注主题 - hero-art容器高度自适应 */
/* 确保排名行内容完整显示 - 双主题通用 */
body.theme-coursera .hero-art{height:auto;min-height:auto;overflow:visible}
body.theme-coursera .ranking-podium{height:auto;min-height:auto;overflow:visible}
body.theme-classic .hero-art{height:auto;min-height:auto;overflow:visible}
body.theme-classic .ranking-podium{height:auto;min-height:auto;overflow:visible}
.podium-row{height:auto;min-height:auto}
.podium-info{min-width:0}
.podium-info b,.podium-info small{white-space:normal;overflow:visible;text-overflow:clip;word-break:break-all;line-height:1.4}
/* =========================================================
   137. 登录注册标签统一风格 - 与排名页面分段式标签保持一致
   双主题统一
   ========================================================= */
/* ---------- 专注主题（Classic）登录注册标签 - 分段式 ---------- */
/* ---------- 专业主题（Coursera）登录注册标签 - 分段式 ---------- */
body.theme-classic #authBody .auth-tabs,html body.theme-classic .auth-studio .auth-tabs,html body.theme-classic #authStudio .auth-tabs{display:flex;gap:6px;background:var(--color-surface-2);padding:4px;border-radius:var(--radius-pill);margin-bottom:24px;flex-wrap:nowrap;width:100%;box-shadow:none;border:none}
body.theme-classic #authBody .auth-tabs button,html body.theme-classic .auth-studio .auth-tabs button,html body.theme-classic #authStudio .auth-tabs button{flex:1;border:0;background:transparent;background-image:none;border-radius:var(--radius-pill);padding:9px 12px;font-size:var(--font-md);font-weight:var(--weight-medium);color:var(--color-muted);cursor:pointer;transition:color var(--transition-fast), background-color var(--transition-fast);box-shadow:none;text-shadow:none;height:auto;line-height:1.5;white-space:nowrap}
body.theme-classic #authBody .auth-tabs button:hover,html body.theme-classic .auth-studio .auth-tabs button:hover,html body.theme-classic #authStudio .auth-tabs button:hover{color:var(--wine);background:transparent;background-image:none}
body.theme-classic #authBody .auth-tabs button.active,html body.theme-classic .auth-studio .auth-tabs button.active,html body.theme-classic #authStudio .auth-tabs button.active{background:var(--paper);background-image:none;color:var(--wine);font-weight:var(--weight-semibold);box-shadow:0 4px 14px rgba(52,38,20,.08);border:none}
body.theme-coursera #authBody .auth-tabs,html body.theme-coursera .auth-studio .auth-tabs,html body.theme-coursera #authStudio .auth-tabs{display:flex;gap:0;margin-bottom:24px;background:var(--paper-2);padding:3px;border-radius:var(--radius-xs);width:100%;border:1px solid var(--line);flex-wrap:nowrap;box-shadow:none}
body.theme-coursera #authBody .auth-tabs button,html body.theme-coursera .auth-studio .auth-tabs button,html body.theme-coursera #authStudio .auth-tabs button{flex:1;border:0;background:transparent;background-image:none;padding:8px 12px;border-radius:var(--radius-xs);font-size:var(--font-md);font-weight:var(--weight-medium);cursor:pointer;color:var(--muted);transition:color var(--transition-fast), background-color var(--transition-fast);box-shadow:none;text-shadow:none;height:auto;line-height:1.5;white-space:nowrap}
body.theme-coursera #authBody .auth-tabs button:hover,html body.theme-coursera .auth-studio .auth-tabs button:hover,html body.theme-coursera #authStudio .auth-tabs button:hover{color:var(--ink);background:transparent;background-image:none}
body.theme-coursera #authBody .auth-tabs button.active,html body.theme-coursera .auth-studio .auth-tabs button.active,html body.theme-coursera #authStudio .auth-tabs button.active{background:var(--color-white);background-image:none;color:var(--ink);font-weight:var(--weight-semibold);box-shadow:0 1px 3px color-mix(in srgb,var(--color-ink) 6%,transparent);border:none}
/* =========================================================
   138. 排名文字遮挡最终修复 - 双主题完全一致
   ========================================================= */
/* 排名行通用修复 - 防止文字被遮挡 */
/* 专注主题排名行 */
/* 专业主题排名行 */
/* 首页排名卡片（Podium）文字修复 */
/* 专注主题Podium */
/* 专业主题Podium */
/* hero-art容器通用修复 */
.ranking-row{align-items:center;min-height:auto;height:auto;overflow:visible}
.ranking-row>span,.ranking-row>b{white-space:normal;overflow:visible;text-overflow:clip;word-break:break-all;line-height:1.4;min-width:0}
.ranking-row .progress-inline{white-space:nowrap;min-width:80px}
body.theme-classic .ranking-row{padding:14px 20px}
body.theme-coursera .ranking-row{padding:14px 20px}
body.theme-coursera .ranking-row span:nth-child(3){min-width:0}
.ranking-podium{height:auto;min-height:auto;overflow:visible}
.podium-row{height:auto;min-height:auto;overflow:visible;align-items:center}
.podium-info{min-width:0;overflow:visible}
.podium-info b,.podium-info small{white-space:normal;overflow:visible;text-overflow:clip;word-break:break-all;line-height:1.4;display:block}
body.theme-classic .ranking-podium{height:auto;min-height:auto;overflow:visible}
body.theme-classic .podium-row{height:auto;min-height:auto;overflow:visible}
body.theme-coursera .ranking-podium{height:auto;min-height:auto;overflow:visible}
body.theme-coursera .podium-row{height:auto;min-height:auto;overflow:visible}
body.theme-coursera .hero-art{height:auto;min-height:auto;overflow:visible}
.hero-art{height:auto;min-height:auto;overflow:visible}
/* =========================================================
   139. 导航栏优化 - 防止文字截断
   ========================================================= */
/* 基础修复：导航标签不换行 */
/* 品牌区域优化 */
/* 账户按钮优化 - 防止文字截断和重复 */
/* 专注主题导航优化 */
.nav-tab{white-space:nowrap;flex-shrink:0}
.brand{flex-shrink:0}
.brand span{white-space:nowrap}
.account-btn{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:180px;display:flex;align-items:center;gap:8px}
.account-btn .account-avatar{flex-shrink:0}
.account-btn small{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:120px;display:inline-block}
@media(max-width:1280px){body.theme-classic .nav-tab{padding:10px 10px;font-size:var(--font-sm)}
body.theme-classic .brand{min-width:220px}
body.theme-classic .brand small{display:none}}
@media(max-width:1100px){body.theme-classic .main-nav{gap:2px}
body.theme-classic .nav-tab{padding:8px 8px;font-size:var(--font-xs)}}
/* 专业主题导航优化 */
@media(max-width:1280px){body.theme-coursera .nav-tab{padding:10px 10px;font-size:var(--font-sm)}
body.theme-coursera .nav-tab.active:after{left:10px;right:10px}
body.theme-coursera .brand{min-width:220px}
body.theme-coursera .brand small{display:none}}
@media(max-width:1100px){body.theme-coursera .main-nav{gap:0}
body.theme-coursera .nav-tab{padding:8px 6px;font-size:var(--font-xs)}
body.theme-coursera .nav-tab.active:after{left:6px;right:6px}}
/* =========================================================
   140. 专业主题常用工具修复
   ========================================================= */
body.theme-coursera .tools-gallery{display:grid;visibility:visible;opacity:1}
body.theme-coursera .tools-gallery.hidden{display:none}
/* =========================================================
   141. 首页今日学习标签样式统一
   ========================================================= */
/* 专注主题 - 分段式标签 */
/* 专业主题 - 分段式标签 */
body.theme-classic .home-tabs{display:flex;gap:6px;background:var(--color-surface-2);padding:4px;border-radius:var(--radius-pill);width:max-content}
body.theme-classic .home-tabs button{border:0;background:transparent;padding:8px 16px;border-radius:var(--radius-pill);cursor:pointer;font-size:var(--font-md);color:var(--color-muted);transition:color var(--transition-fast), background-color var(--transition-fast)}
body.theme-classic .home-tabs button.active{background:var(--paper);color:var(--wine);font-weight:var(--weight-semibold);box-shadow:0 3px 12px rgba(50,40,25,.08)}
body.theme-coursera .home-tabs{display:flex;gap:0;margin-bottom:0;background:var(--paper-2);padding:3px;border-radius:var(--radius-xs);width:fit-content;border:1px solid var(--line)}
body.theme-coursera .home-tabs button{border:0;background:transparent;padding:7px 16px;border-radius:var(--radius-xs);font-size:var(--font-md);font-weight:var(--weight-medium);cursor:pointer;color:var(--muted);transition:color var(--transition-fast), background-color var(--transition-fast)}
body.theme-coursera .home-tabs button.active{background:var(--color-white);color:var(--ink);font-weight:var(--weight-semibold);box-shadow:0 1px 3px color-mix(in srgb,var(--color-ink) 6%,transparent)}
/* =========================================================
   200. 知识库页面重写（对齐专注主题风格）
   ========================================================= */
/* 知识库标签 - 精致大气风格 */
/* 知识库工具栏 */
/* 知识库画廊 - 书籍封面风格（对齐专注主题） */
/* 书籍颜色变体 */
/* 证据方法区 */
body.theme-coursera .kb-tabs{display:flex;gap:4px;margin:0 auto 28px;max-width:900px;flex-wrap:wrap;justify-content:center;padding:6px;background:var(--color-surface-2);border-radius:var(--radius-pill);border:1px solid var(--color-line);box-shadow:0 1px 3px color-mix(in srgb,var(--color-ink) 4%,transparent)}
body.theme-coursera .kb-tabs button{padding:10px 24px;border:0;background:transparent;border-radius:var(--radius-pill);font-size:var(--font-base);font-weight:var(--weight-medium);color:var(--muted);cursor:pointer;transition:color var(--transition-base) cubic-bezier(.4,0,.2,1), background-color var(--transition-base) cubic-bezier(.4,0,.2,1);font-family:var(--sans);letter-spacing:.05em;position:relative}
body.theme-coursera .kb-tabs button:hover{color:var(--color-brand);background:color-mix(in srgb,var(--color-brand) 8%,transparent)}
body.theme-coursera .kb-tabs button.active{background:linear-gradient(135deg,var(--color-brand),var(--color-brand-active));color:var(--color-white);font-weight:var(--weight-semibold);box-shadow:0 4px 16px color-mix(in srgb,var(--color-brand) 30%,transparent);transform:translateY(-1px)}
body.theme-coursera .kb-toolbar{max-width:1200px;margin:0 auto 24px;padding:0 24px}
body.theme-coursera .source-gallery{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;max-width:1200px;margin:0 auto 32px;padding:0 24px}
body.theme-coursera .source-book{min-height:365px;border-radius:18px;padding:24px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden;box-shadow:0 8px 24px color-mix(in srgb,var(--color-ink) 10%,transparent);transition:transform var(--transition-base) cubic-bezier(.4,0,.2,1), box-shadow var(--transition-base) cubic-bezier(.4,0,.2,1), border-color var(--transition-base) cubic-bezier(.4,0,.2,1);border:0;text-align:left;cursor:pointer;background:transparent}
body.theme-coursera .source-book:hover{transform:translateY(-6px);box-shadow:0 16px 40px color-mix(in srgb,var(--color-ink) 15%,transparent)}
body.theme-coursera .source-book:after{content:"";position:absolute;width:170px;height:170px;border:1px solid currentColor;border-radius:50%;right:-70px;bottom:-70px;opacity:.12;display:block}
body.theme-coursera .source-book .book-cover{position:relative;aspect-ratio:3/4;border-radius:10px;overflow:hidden;margin-bottom:16px;background:color-mix(in srgb,var(--color-ink) 8%,transparent)}
body.theme-coursera .source-book .book-cover img{width:100%;height:100%;object-fit:contain;display:block}
body.theme-coursera .source-book .book-spine{position:absolute;left:0;top:0;bottom:0;width:5px;background:linear-gradient(90deg,color-mix(in srgb,var(--color-ink) 20%,transparent),transparent)}
body.theme-coursera .source-book .book-info{padding:0;flex:0 0 auto;display:block}
body.theme-coursera .source-book .book-info span{font-size:9px;letter-spacing:.18em;opacity:.72;color:inherit;font-weight:var(--weight-medium);text-transform:none}
body.theme-coursera .source-book .book-info h2{font:600 20px/1.2 var(--serif);margin:0;color:inherit;flex:1 1 auto;min-width:0}
body.theme-coursera .source-book .book-title-row{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:8px 0 6px}
body.theme-coursera .source-book .book-online-tag{flex:0 0 auto;font-size:var(--font-xxs);font-weight:var(--weight-semibold);padding:3px 8px;border-radius:var(--radius-pill);background:rgba(255,255,255,.25);color:inherit;letter-spacing:.04em;white-space:nowrap;border:1px solid rgba(255,255,255,.3)}
body.theme-coursera .source-book .book-info p{font-size:var(--font-sm);opacity:.78;color:inherit;margin:0;line-height:1.5}
body.theme-coursera .source-book>small{display:block;padding:0;font-size:var(--font-xxs);color:inherit;font-weight:400;border-top:0;background:transparent;margin-top:12px;opacity:.7}
body.theme-coursera .source-book.book-a{background:linear-gradient(145deg,var(--color-brand),var(--color-brand-active));color:var(--color-white)}
body.theme-coursera .source-book.book-b{background:linear-gradient(145deg,var(--color-brand-active),#0f1f33);color:var(--color-white)}
body.theme-coursera .source-book.book-c{background:linear-gradient(145deg,var(--color-brand),var(--color-brand-hover));color:var(--color-white)}
body.theme-coursera .source-book.book-d{background:linear-gradient(145deg,rgba(94,106,210,.15),rgba(94,106,210,.2));color:#1e3a8a}
body.theme-coursera .source-book.book-e{background:linear-gradient(145deg,var(--color-body),var(--color-ink));color:var(--color-line)}
body.theme-coursera .source-book.book-author{background:linear-gradient(145deg,#4f46e5,#4338ca);color:var(--color-white)}
body.theme-coursera .evidence-method{max-width:1200px;margin:24px auto 0;padding:0 24px}
body.theme-coursera .source-principle{max-width:1200px;margin:16px auto 0;padding:0 24px}
/* =========================================================
   201. 常用工具网格布局优化
   ========================================================= */
body.theme-coursera .tools-gallery{max-width:1200px;margin:0 auto 32px;padding:0 24px}
body.theme-coursera .tools-filter{display:flex;gap:6px;margin-bottom:24px;flex-wrap:wrap;justify-content:center;background:linear-gradient(135deg,var(--color-surface-2),var(--color-surface-2));padding:6px;border-radius:var(--radius-pill);border:1px solid var(--line);max-width:600px;margin-left:auto;margin-right:auto}
body.theme-coursera .tools-filter button{background:transparent;border:0;border-radius:var(--radius-pill);padding:8px 20px;cursor:pointer;font-size:var(--font-md);color:var(--muted);transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);font-weight:var(--weight-medium)}
body.theme-coursera .tools-filter button.active{background:linear-gradient(135deg,var(--wine),var(--color-brand-active));color:var(--color-white);font-weight:var(--weight-semibold);box-shadow:0 4px 12px color-mix(in srgb,var(--color-brand) 25%,transparent)}
body.theme-coursera .tools-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
body.theme-coursera .tool-card{display:flex;flex-direction:column;align-items:center;text-align:center;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-xl);padding:28px 20px 22px;cursor:pointer;transition:transform var(--transition-base) cubic-bezier(.4,0,.2,1), box-shadow var(--transition-base) cubic-bezier(.4,0,.2,1), border-color var(--transition-base) cubic-bezier(.4,0,.2,1);opacity:0;animation:toolCardIn .4s ease forwards}
body.theme-coursera .tool-card:hover{border-color:var(--wine);transform:translateY(-4px);box-shadow:0 12px 32px var(--color-brand-ring)}
body.theme-coursera .tool-card .tool-icon{width:56px;height:56px;border-radius:var(--radius-lg);background:linear-gradient(135deg,color-mix(in srgb,var(--color-brand) 10%,transparent),color-mix(in srgb,var(--color-brand) 5%,transparent));display:flex;align-items:center;justify-content:center;color:var(--wine);margin-bottom:16px;transition:background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base), opacity var(--transition-base)}
body.theme-coursera .tool-card:hover .tool-icon{background:linear-gradient(135deg,var(--wine),var(--color-brand-active));color:var(--color-white);transform:scale(1.1)}
body.theme-coursera .tool-card h3{font:600 16px var(--serif);margin:0 0 6px;color:var(--ink)}
body.theme-coursera .tool-card p{font-size:var(--font-sm);color:var(--muted);margin:0;line-height:1.5}
/* =========================================================
   202. 课程地图侧边栏配色优化
   ========================================================= */
body.theme-coursera .module-intro{background:linear-gradient(160deg,var(--color-brand-active),#0f1f33);color:var(--color-white);border-radius:var(--radius-xl);padding:28px;min-height:470px;position:sticky;top:105px;overflow:hidden}
body.theme-coursera .module-intro:after{content:"";position:absolute;width:250px;height:250px;border:1px solid rgba(255,255,255,.1);border-radius:50%;right:-120px;bottom:-80px}
body.theme-coursera .module-intro span{font-size:var(--font-xxs);letter-spacing:.2em;color:rgba(201,169,110,.9)}
body.theme-coursera .module-intro h2{font:600 30px/1.25 var(--serif);color:var(--color-white)}
body.theme-coursera .module-intro p{color:rgba(255,255,255,.94);font-size:var(--font-md);line-height:1.7;font-weight:500}
body.theme-coursera .module-intro ul{padding-left:18px;color:rgba(255,255,255,.92);font-size:var(--font-md);line-height:1.85;font-weight:500}
body.theme-coursera .module-intro ul li{margin:3px 0}
body.theme-coursera .module-intro .module-number{font:500 96px var(--serif);color:rgba(201,169,110,.15);position:absolute;bottom:15px;right:20px}
/* =========================================================
   203. 响应式细节优化
   ========================================================= */
@media(max-width:1200px){body.theme-coursera .source-gallery{grid-template-columns:repeat(4,1fr)}
body.theme-coursera .tools-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:900px){body.theme-coursera .source-gallery{grid-template-columns:repeat(3,1fr);gap:12px;padding:0 16px}
body.theme-coursera .tools-grid{grid-template-columns:repeat(2,1fr)}
body.theme-coursera .kb-tabs button{padding:8px 18px;font-size:var(--font-md)}}
@media(max-width:600px){body.theme-coursera .source-gallery{grid-template-columns:repeat(2,1fr);gap:10px;padding:0 12px}
body.theme-coursera .source-book{min-height:280px;padding:16px;border-radius:var(--radius-lg)}
body.theme-coursera .source-book .book-info h2{font-size:var(--font-lg)}
body.theme-coursera .source-book .book-online-tag{font-size:9px;padding:2px 6px}
body.theme-coursera .tools-grid{grid-template-columns:1fr}
body.theme-coursera .kb-tabs{gap:2px;padding:4px}
body.theme-coursera .kb-tabs button{padding:6px 14px;font-size:var(--font-sm)}
body.theme-coursera .evidence-method{grid-template-columns:1fr;gap:16px}
body.theme-coursera .method-steps{grid-template-columns:1fr}
body.theme-coursera .source-principle{grid-template-columns:1fr}}
/* =========================================================
   204. 修复工具画廊布局冲突
   ========================================================= */
body.theme-coursera .tools-gallery{display:block;grid-template-columns:none;gap:0}
body.theme-coursera .tools-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media(max-width:1200px){body.theme-coursera .tools-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:900px){body.theme-coursera .tools-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){body.theme-coursera .tools-grid{grid-template-columns:1fr}}
/* =========================================================
   205. 工具卡片样式覆盖（修复横向布局冲突）
   ========================================================= */
body.theme-coursera .tool-card{display:flex;flex-direction:column;align-items:center;text-align:center;gap:0;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-xl);padding:28px 20px 22px}
body.theme-coursera .tool-card .tool-icon{width:56px;height:56px;border-radius:var(--radius-lg);background:linear-gradient(135deg,color-mix(in srgb,var(--color-brand) 10%,transparent),color-mix(in srgb,var(--color-brand) 5%,transparent));display:flex;align-items:center;justify-content:center;color:var(--wine);margin-bottom:16px;flex-shrink:0}
body.theme-coursera .tool-card:hover .tool-icon{background:linear-gradient(135deg,var(--wine),var(--color-brand-active));color:var(--color-white)}
body.theme-coursera .tool-card h3{font:600 16px var(--serif);margin:0 0 6px;color:var(--ink)}
body.theme-coursera .tool-card p{font-size:var(--font-sm);color:var(--muted);margin:0;line-height:1.5}
body.theme-coursera .tool-info,body.theme-coursera .tool-arrow,body.theme-coursera .tool-cat{display:none}
/* =========================================================
   206. 强制修复工具画廊布局（最高优先级）
   ========================================================= */
/* 隐藏旧版工具样式中的多余元素 */
body.theme-coursera #toolsGalleryPage.tools-gallery,html body.theme-coursera .tools-gallery{display:block;width:100%;max-width:1200px;margin:0 auto 32px;padding:0 24px;grid-template-columns:none;gap:0}
body.theme-coursera .tools-gallery .tools-filter{display:flex;flex-direction:row;gap:6px;margin-bottom:24px;flex-wrap:wrap;justify-content:center;background:linear-gradient(135deg,var(--color-surface-2),var(--color-surface-2));padding:6px;border-radius:var(--radius-pill);border:1px solid var(--line);max-width:600px;margin-left:auto;margin-right:auto;height:auto;width:auto}
body.theme-coursera .tools-gallery .tools-filter button{flex:0 0 auto;height:auto;padding:8px 20px;border-radius:var(--radius-pill);background:transparent;color:var(--muted);font-size:var(--font-md);font-weight:var(--weight-medium);border:0;cursor:pointer;transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast)}
body.theme-coursera .tools-gallery .tools-filter button.active{background:linear-gradient(135deg,var(--wine),var(--color-brand-active));color:var(--color-white);font-weight:var(--weight-semibold);box-shadow:0 4px 12px color-mix(in srgb,var(--color-brand) 25%,transparent)}
body.theme-coursera .tools-gallery .tools-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;width:100%}
body.theme-coursera .tools-gallery .tools-grid .tool-card{display:flex;flex-direction:column;align-items:center;text-align:center;gap:0;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-xl);padding:28px 20px 22px;width:100%;height:auto;min-height:180px;opacity:0;animation:toolCardIn .4s ease forwards}
body.theme-coursera .tools-gallery .tools-grid .tool-card:nth-child(1){animation-delay:.05s}
body.theme-coursera .tools-gallery .tools-grid .tool-card:nth-child(2){animation-delay:.1s}
body.theme-coursera .tools-gallery .tools-grid .tool-card:nth-child(3){animation-delay:.15s}
body.theme-coursera .tools-gallery .tools-grid .tool-card:nth-child(4){animation-delay:.2s}
body.theme-coursera .tools-gallery .tools-grid .tool-card:nth-child(5){animation-delay:.25s}
body.theme-coursera .tools-gallery .tools-grid .tool-card:nth-child(6){animation-delay:.3s}
body.theme-coursera .tools-gallery .tools-grid .tool-card:nth-child(7){animation-delay:.35s}
body.theme-coursera .tools-gallery .tools-grid .tool-card:nth-child(8){animation-delay:.4s}
body.theme-coursera .tools-gallery .tools-grid .tool-card .tool-icon{width:56px;height:56px;border-radius:var(--radius-lg);background:linear-gradient(135deg,color-mix(in srgb,var(--color-brand) 10%,transparent),color-mix(in srgb,var(--color-brand) 5%,transparent));display:flex;align-items:center;justify-content:center;color:var(--wine);margin:0 0 16px 0;flex-shrink:0}
body.theme-coursera .tools-gallery .tools-grid .tool-card:hover .tool-icon{background:linear-gradient(135deg,var(--wine),var(--color-brand-active));color:var(--color-white)}
body.theme-coursera .tools-gallery .tools-grid .tool-card h3{font:600 16px var(--serif);margin:0 0 6px 0;color:var(--ink)}
body.theme-coursera .tools-gallery .tools-grid .tool-card p{font-size:var(--font-sm);color:var(--muted);margin:0;line-height:1.5}
body.theme-coursera .tool-info,html body.theme-coursera .tool-arrow,html body.theme-coursera .tool-cat{display:none}
/* =========================================================
   207. 独立工具页面样式（page-tools-* 独立命名空间）
   ========================================================= */
/* 通用样式 */
.tools-page-gallery{max-width:1200px;margin:0 auto 32px;padding:0 24px}
.page-tools-filter{display:flex;gap:6px;margin-bottom:24px;flex-wrap:wrap;justify-content:center;background:linear-gradient(135deg,var(--color-surface-2),var(--color-surface-2));padding:6px;border-radius:var(--radius-pill);border:1px solid var(--line);max-width:600px;margin-left:auto;margin-right:auto}
.page-tools-filter button{background:transparent;border:0;border-radius:var(--radius-pill);padding:8px 20px;cursor:pointer;font-size:var(--font-md);color:var(--muted);transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);font-weight:var(--weight-medium);font-family:inherit}
.page-tools-filter button:hover{color:var(--wine);background:var(--wine-soft)}
.page-tools-filter button.active{background:linear-gradient(135deg,var(--wine),var(--wine-dark));color:var(--color-white);font-weight:var(--weight-semibold);box-shadow:0 4px 12px color-mix(in srgb,var(--wine) 25%,transparent)}
.page-tools-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.page-tool-card{display:flex;flex-direction:column;align-items:center;text-align:center;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-xl);padding:28px 20px 22px;cursor:pointer;transition:transform var(--transition-base) cubic-bezier(.4,0,.2,1), box-shadow var(--transition-base) cubic-bezier(.4,0,.2,1), border-color var(--transition-base) cubic-bezier(.4,0,.2,1);opacity:0;animation:toolCardIn .4s ease forwards}
.page-tool-card:nth-child(1){animation-delay:.05s}
.page-tool-card:nth-child(2){animation-delay:.1s}
.page-tool-card:nth-child(3){animation-delay:.15s}
.page-tool-card:nth-child(4){animation-delay:.2s}
.page-tool-card:nth-child(5){animation-delay:.25s}
.page-tool-card:nth-child(6){animation-delay:.3s}
.page-tool-card:nth-child(7){animation-delay:.35s}
.page-tool-card:nth-child(8){animation-delay:.4s}
.page-tool-card:nth-child(9){animation-delay:.45s}
.page-tool-card:nth-child(10){animation-delay:.5s}
.page-tool-card:nth-child(11){animation-delay:.55s}
.page-tool-card:nth-child(12){animation-delay:.6s}
@keyframes toolCardIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
/* 专业主题适配 */
/* 响应式 */
.page-tool-card:hover{border-color:var(--wine);transform:translateY(-4px);box-shadow:0 12px 32px color-mix(in srgb,var(--wine) 12%,transparent)}
.page-tool-icon{width:56px;height:56px;border-radius:var(--radius-lg);background:linear-gradient(135deg,color-mix(in srgb,var(--wine) 10%,transparent),color-mix(in srgb,var(--wine) 5%,transparent));display:flex;align-items:center;justify-content:center;color:var(--wine);margin-bottom:16px;transition:background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base), opacity var(--transition-base)}
.page-tool-card:hover .page-tool-icon{background:linear-gradient(135deg,var(--wine),var(--wine-dark));color:var(--color-white);transform:scale(1.1)}
.page-tool-card h3{font:600 16px var(--serif);margin:0 0 6px;color:var(--ink)}
.page-tool-card p{font-size:var(--font-sm);color:var(--muted);margin:0;line-height:1.5}
body.theme-coursera .page-tools-filter{background:var(--color-white);border:1px solid var(--color-line);box-shadow:0 1px 3px color-mix(in srgb,var(--color-ink) 4%,transparent);border-color:var(--color-line)}
body.theme-coursera .page-tools-filter button{color:var(--color-muted);background:var(--color-surface-2)}
body.theme-coursera .page-tools-filter button:hover{color:var(--color-brand);background:color-mix(in srgb,var(--color-brand) 6%,transparent)}
body.theme-coursera .page-tool-card{background:var(--color-white);border-color:var(--color-line)}
body.theme-coursera .page-tool-card:hover{border-color:var(--wine)}
@media(max-width:1200px){.page-tools-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:900px){.page-tools-grid{grid-template-columns:repeat(2,1fr)}
.page-tools-filter{max-width:100%}
.page-tools-filter button{padding:8px 16px;font-size:var(--font-sm)}}
@media(max-width:600px){.tools-page-gallery{padding:0 16px}
.page-tools-grid{grid-template-columns:1fr}
.page-tools-filter{gap:4px;padding:4px}
.page-tools-filter button{padding:6px 12px;font-size:var(--font-sm)}}
/* ── Coursera主题：工具页面样式覆盖 ── */
body.theme-coursera .page-tools-filter button{background:var(--color-surface-2);color:var(--color-muted);border:0}
body.theme-coursera .page-tools-filter button.active{background:linear-gradient(135deg,var(--color-brand),var(--color-brand-hover));color:var(--color-white);font-weight:var(--weight-semibold);box-shadow:0 2px 8px color-mix(in srgb,var(--color-brand) 25%,transparent)}
body.theme-coursera .page-tool-card{border:1px solid var(--color-line);background:var(--color-white);border-radius:var(--radius-input)}
body.theme-coursera .page-tool-card:hover{box-shadow:0 2px 8px color-mix(in srgb,var(--color-ink) 8%,transparent);border-color:var(--wine)}
body.theme-coursera .page-tool-icon{background:linear-gradient(135deg,var(--color-brand),var(--color-brand-active))}
/* =========================================================
   208. 收费方案页面 - 痛点卡片颜色修复（红色改为蓝色）
   ========================================================= */
body.theme-coursera .vp-item.pain{background:var(--color-brand-soft);border:1px solid color-mix(in srgb,var(--color-brand) 20%,transparent);border-left:3px solid var(--color-brand)}
body.theme-coursera .vp-item.pain:hover{border-color:var(--color-brand);box-shadow:0 8px 24px color-mix(in srgb,var(--color-brand) 10%,transparent)}
body.theme-coursera .vp-item.pain .vp-badge{background:color-mix(in srgb,var(--color-brand) 20%,transparent);color:var(--color-brand)}
body.theme-coursera .vp-item.pain h3{color:var(--color-brand)}
/* =========================================================
   209. 收费方案页面 - 解决卡片颜色优化（专业绿色）
   ========================================================= */
body.theme-coursera .vp-item.gain{background:var(--color-success-soft);border:1px solid rgba(24,128,56,.15);border-left:3px solid var(--color-success)}
body.theme-coursera .vp-item.gain:hover{border-color:var(--color-success);box-shadow:0 8px 24px rgba(22,163,74,.1)}
body.theme-coursera .vp-item.gain .vp-badge{background:rgba(24,128,56,.15);color:var(--color-success-dark,#166534)}
body.theme-coursera .vp-item.gain h3{color:var(--color-success-dark,#166534)}
/* =========================================================
   210. 排名页面 - 表头背景颜色修复（米色改为浅灰蓝色）
   ========================================================= */
body.theme-coursera .ranking-row.head{background:var(--color-surface-2);color:var(--color-muted);font-size:var(--font-sm);font-weight:var(--weight-semibold);text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--color-line)}
/* =========================================================
   211. 认证中心页面 - 状态文字颜色修复（橙色改为蓝色）
   ========================================================= */
body.theme-coursera .eligibility-row b.wait{color:var(--color-warning)}
/* =========================================================
   212. 今日打卡卡片 - 橙色/黄色装饰改为蓝色系
   ========================================================= */
/* 每日打卡卡片样式修复 */
body.theme-coursera .home-checkin-card{background:linear-gradient(135deg,var(--color-brand-soft),var(--color-brand-soft));border:1px solid color-mix(in srgb,var(--color-brand) 15%,transparent)}
body.theme-coursera .home-checkin-card.checked{background:linear-gradient(135deg,var(--color-success-soft),var(--color-success-soft));border-color:rgba(24,128,56,.15)}
body.theme-coursera .checkin-info h4{color:var(--color-brand-hover)}
body.theme-coursera .home-checkin-card.checked .checkin-info h4{color:var(--color-success-dark,#166534)}
body.theme-coursera .checkin-info p{color:var(--color-info)}
body.theme-coursera .home-checkin-card.checked .checkin-info p{color:var(--color-success)}
body.theme-coursera .checkin-badge{background:var(--color-brand);color:var(--color-white)}
body.theme-coursera .home-checkin-card.checked .checkin-badge{background:var(--color-success)}
body.theme-coursera .checkin-icon{background:linear-gradient(135deg,var(--color-info),var(--color-brand));color:var(--color-white)}
body.theme-coursera .home-checkin-card.checked .checkin-icon{background:linear-gradient(135deg,var(--color-success),var(--color-success))}
body.theme-coursera .daily-checkin{background:linear-gradient(135deg,var(--color-brand-soft),var(--color-brand-soft));border:1px solid color-mix(in srgb,var(--color-brand) 15%,transparent)}
body.theme-coursera .checkin-streak span{color:var(--color-brand-hover)}
body.theme-coursera .checkin-streak b{color:var(--color-brand)}
body.theme-coursera .checkin-tip{color:var(--color-brand-hover)}
/* =========================================================
   213. 收费方案页面 - 自测选择题样式（Coursera主题）
   ========================================================= */
body.theme-coursera .vp-quiz-grid{max-width:1200px}
body.theme-coursera .vp-quiz-item{background:var(--color-white);border:1px solid var(--color-line);border-radius:var(--radius-md);padding:22px;transition:box-shadow .2s,border-color .2s}
body.theme-coursera .vp-quiz-item:hover{box-shadow:0 4px 16px color-mix(in srgb,var(--color-ink) 6%,transparent)}
body.theme-coursera .vp-quiz-item.answered{border-color:var(--color-brand)}
body.theme-coursera .vp-quiz-num{background:linear-gradient(135deg,var(--color-brand),var(--color-brand-active));font-family:var(--sans)}
body.theme-coursera .vp-quiz-question h3{font:700 15px/1.55 var(--sans);color:var(--color-ink)}
body.theme-coursera .vp-option{border:1px solid var(--color-line);background:var(--color-white);border-radius:var(--radius-input);padding:10px 0;font-size:var(--font-md);font-weight:var(--weight-semibold);color:var(--color-muted);transition:background-color .18s, color .18s, border-color .18s, transform .18s, box-shadow .18s, opacity .18s}
body.theme-coursera .vp-option:hover{border-color:var(--color-brand);color:var(--color-brand);background:var(--color-brand-soft)}
body.theme-coursera .vp-option.selected-yes{background:linear-gradient(135deg,var(--color-brand),var(--color-brand-hover));color:var(--color-white);border-color:var(--color-brand);box-shadow:0 2px 8px color-mix(in srgb,var(--color-brand) 25%,transparent)}
body.theme-coursera .vp-option.selected-no{background:var(--color-surface-2);color:var(--color-muted);border-color:var(--color-line)}
body.theme-coursera .vp-quiz-item .vp-item.gain{background:var(--color-success-soft);border:1px solid rgba(24,128,56,.15);border-left:3px solid var(--color-success);border-radius:var(--radius-input);padding:16px}
body.theme-coursera .pricing-recommend-text{font:700 22px/1.4 var(--sans);color:var(--color-ink)}
body.theme-coursera .pricing-recommend-text:before,body.theme-coursera .pricing-recommend-text:after{background:var(--color-brand)}
/* =========================================================
   UI FIXES - 按钮统一、排行榜修复、工作台行重设计
   ========================================================= */
/* ====== 1. 首页标签按钮统一风格 ====== */
/* ---- 专注主题（Classic / 酒红）---- */
/* ---- 专业主题（Coursera / 蓝色）---- */
body.theme-classic .home-tabs{display:flex;gap:10px;margin-bottom:20px;background:transparent;padding:0;border-radius:0;width:100%;border:none}
body.theme-classic .home-tabs button.home-tab{border:1.5px solid var(--color-line-strong);background:transparent;padding:10px 24px;border-radius:10px;cursor:pointer;font-size:var(--font-base);font-weight:var(--weight-medium);color:var(--color-muted);transition:color var(--transition-fast), background-color var(--transition-fast);font-family:var(--sans);line-height:1.4}
body.theme-classic .home-tabs button.home-tab:hover{border-color:var(--color-brand);color:var(--color-brand);background:rgba(122,35,40,.04)}
body.theme-classic .home-tabs button.home-tab.active{background:var(--color-brand);border-color:var(--color-brand);color:var(--color-white);font-weight:var(--weight-semibold);box-shadow:0 4px 14px rgba(122,35,40,.25)}
body.theme-coursera .home-tabs{display:flex;gap:10px;margin-bottom:20px;background:transparent;padding:0;border-radius:0;width:100%;border:none}
body.theme-coursera .home-tabs button.home-tab{border:1.5px solid var(--color-line-strong);background:transparent;padding:10px 24px;border-radius:var(--radius-input);cursor:pointer;font-size:var(--font-base);font-weight:var(--weight-medium);color:var(--color-muted);transition:color var(--transition-fast), background-color var(--transition-fast);font-family:var(--sans);line-height:1.4}
body.theme-coursera .home-tabs button.home-tab:hover{border-color:var(--color-brand);color:var(--color-brand);background:color-mix(in srgb,var(--color-brand) 4%,transparent)}
body.theme-coursera .home-tabs button.home-tab.active{background:linear-gradient(135deg,var(--color-brand),var(--color-brand-hover));border-color:var(--color-brand);color:var(--color-white);font-weight:var(--weight-semibold);box-shadow:0 4px 14px color-mix(in srgb,var(--color-brand) 25%,transparent)}
/* ====== 2. 登录/注册按钮与ghost-btn风格统一 ====== */
/* ---- 专注主题（Classic）---- */
/* ---- 专业主题（Coursera）---- */
body.theme-classic .hero-auth-link{display:inline-flex;align-items:center}
body.theme-classic .hero-auth-link button{background:var(--paper);border:1px solid var(--color-line);color:var(--color-body);border-radius:10px;font-weight:var(--weight-medium);font-size:var(--font-base);padding:10px 20px;line-height:1.4;cursor:pointer;transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);font-family:var(--sans)}
body.theme-classic .hero-auth-link button:hover{border-color:var(--color-brand);color:var(--color-brand);background:var(--color-white);box-shadow:0 2px 8px rgba(122,35,40,.1)}
body.theme-coursera .hero-auth-link button{background:var(--color-white);border:1.5px solid var(--color-line-strong);color:var(--color-body);border-radius:var(--radius-input);font-weight:var(--weight-medium);font-size:var(--font-base);padding:10px 22px;line-height:1.4;cursor:pointer;transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast)}
body.theme-coursera .hero-auth-link button:hover{border-color:var(--color-brand);color:var(--color-brand);background:color-mix(in srgb,var(--color-brand) 4%,transparent);box-shadow:0 2px 8px color-mix(in srgb,var(--color-brand) 10%,transparent)}
/* ====== 3. 排行榜文字遮挡修复 ====== */
/* 通用修复：确保hero-art和podium容器不裁剪内容 */
/* 专注主题排行榜颜色 */
/* 专业主题排行榜颜色 */
/* 移除hero-art上的炫光伪元素（会遮挡排行榜文字） */
.hero-art{overflow:visible;height:auto;min-height:420px}
.hero-art .ranking-podium{position:relative;z-index:5;width:100%;height:auto;min-height:400px;overflow:visible;padding:28px 24px;box-sizing:border-box}
.hero-art .podium-list{overflow:visible;gap:10px}
.hero-art .podium-row{overflow:visible;padding:12px 14px;gap:14px;min-height:auto;align-items:center}
.hero-art .podium-medal{width:38px;height:38px;flex-shrink:0;font-size:18px;font-weight:var(--weight-bold);display:grid;place-items:center;border-radius:10px}
.hero-art .podium-info{flex:1;min-width:0;overflow:visible;padding-left:2px}
.hero-art .podium-info b{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.4;font-size:var(--font-base);font-weight:var(--weight-semibold)}
.hero-art .podium-info small{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.4;font-size:var(--font-sm);margin-top:2px}
.hero-art .podium-progress{flex-shrink:0;display:flex;align-items:center;gap:8px;min-width:90px}
.hero-art .podium-bar{width:56px;height:6px;border-radius:3px;overflow:hidden;flex-shrink:0}
.hero-art .podium-progress span{font-size:var(--font-sm);font-weight:var(--weight-semibold);min-width:36px;text-align:right;flex-shrink:0}
body.theme-classic .hero-art .ranking-podium{background:linear-gradient(145deg,var(--color-surface),var(--color-surface));border:1px solid #e0d4c4;border-radius:var(--radius-xl);box-shadow:0 10px 40px rgba(92,61,46,.08)}
body.theme-classic .hero-art .podium-row{background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius-md)}
body.theme-classic .hero-art .podium-medal{background:linear-gradient(135deg,var(--color-brand),var(--color-brand));color:var(--color-white)}
body.theme-classic .hero-art .podium-info b{color:#4a3528}
body.theme-classic .hero-art .podium-info small{color:var(--color-subtle)}
body.theme-classic .hero-art .podium-bar{background:var(--color-line)}
body.theme-classic .hero-art .podium-bar i{background:linear-gradient(90deg,var(--color-brand),var(--color-brand))}
body.theme-classic .hero-art .podium-progress span{color:var(--color-brand)}
body.theme-classic .hero-art .podium-row.rank-gold{background:linear-gradient(135deg,var(--color-warning-soft),var(--color-warning-soft));border-color:rgba(183,121,31,.2)}
body.theme-classic .hero-art .podium-row.rank-silver{background:linear-gradient(135deg,var(--color-surface-2),var(--color-surface-2));border-color:var(--color-line-strong)}
body.theme-classic .hero-art .podium-row.rank-bronze{background:linear-gradient(135deg,#fff7ed,#ffedd5);border-color:#fed7aa}
body.theme-coursera .hero-art .ranking-podium{background:linear-gradient(145deg,var(--color-white),var(--color-surface-2));border:1px solid var(--color-line);border-radius:var(--radius-lg);box-shadow:0 10px 40px color-mix(in srgb,var(--color-ink) 6%,transparent)}
body.theme-coursera .hero-art .podium-row{background:var(--color-white);border:1px solid var(--color-line);border-radius:10px}
body.theme-coursera .hero-art .podium-medal{background:linear-gradient(135deg,var(--color-brand),var(--color-brand-hover));color:var(--color-white)}
body.theme-coursera .hero-art .podium-info small{color:var(--color-subtle)}
body.theme-coursera .hero-art .podium-bar{background:var(--color-line)}
body.theme-coursera .hero-art .podium-bar i{background:linear-gradient(90deg,var(--color-brand),var(--color-info))}
body.theme-coursera .hero-art .podium-progress span{color:var(--color-brand)}
body.theme-coursera .hero-art .podium-row.rank-gold{background:linear-gradient(135deg,var(--color-warning-soft),var(--color-warning-soft));border-color:rgba(183,121,31,.2)}
body.theme-coursera .hero-art .podium-row.rank-silver{background:linear-gradient(135deg,var(--color-surface-2),var(--color-surface-2));border-color:var(--color-line-strong)}
body.theme-coursera .hero-art .podium-row.rank-bronze{background:linear-gradient(135deg,var(--color-surface-2),var(--color-line));border-color:var(--color-line-strong)}
body.theme-coursera .hero-art .podium-row.rank-bronze .podium-bar i{background:linear-gradient(90deg,var(--color-brand),var(--color-info))}
body.theme-classic .hero-art:after,body.theme-classic .hero-art:before{display:none}
/* ====== 4. 学习工作台行重设计 ====== */
/* ---- 通用：dashboard-head 布局 ---- */
/* ---- 专注主题（Classic）工作台标题 ---- */
/* ---- 专业主题（Coursera）工作台标题 ---- */
.dashboard-head{display:flex;align-items:center;justify-content:space-between;margin:28px 0 16px;padding:0;background:none;border:none;position:static}
.dashboard-head:before,.dashboard-head:after{display:none}
.dashboard-head span{font-size:18px;font-weight:var(--weight-bold);color:var(--ink);letter-spacing:-.01em;text-transform:none;font-family:var(--serif)}
.dashboard-head small{font-size:var(--font-md);font-weight:400;color:var(--muted);letter-spacing:0;text-transform:none;font-family:var(--sans)}
body.theme-classic .dashboard-head span{color:var(--color-ink);font-size:18px}
body.theme-classic .dashboard-head small{color:var(--color-subtle);font-size:var(--font-md)}
body.theme-coursera .dashboard-head{position:static;padding-left:0;margin-top:36px}
body.theme-coursera .dashboard-head span{color:var(--color-ink);font-size:20px;font-weight:var(--weight-bold)}
body.theme-coursera .dashboard-head small{color:var(--color-subtle);font-size:var(--font-md);font-weight:400}
/* ====== 5. 响应式适配 ====== */
/* 平板及以下 */
@media(max-width:1023px){.hero-art .ranking-podium{padding:20px 18px}
.hero-art .podium-info b{font-size:var(--font-md)}
.hero-art .podium-info small{font-size:var(--font-xs)}
.hero-art .podium-bar{width:44px}
.hero-art .podium-progress span{font-size:var(--font-xs);min-width:30px}}
/* 手机端 */
@media(max-width:767px){.dashboard-head span{font-size:var(--font-lg)}
.dashboard-head small{font-size:var(--font-sm)}
body.theme-classic .home-tabs button.home-tab,body.theme-coursera .home-tabs button.home-tab{padding:8px 16px;font-size:var(--font-md);flex-shrink:0}
body.theme-classic .home-tabs,body.theme-coursera .home-tabs{gap:8px;overflow-x:auto;flex-wrap:nowrap;-webkit-overflow-scrolling:touch;scrollbar-width:none}
body.theme-classic .home-tabs::-webkit-scrollbar,body.theme-coursera .home-tabs::-webkit-scrollbar{display:none}
.hero-art{min-height:auto;overflow:visible}
.hero-art .ranking-podium{min-height:auto;padding:18px 16px}
.hero-art .podium-row{padding:10px;gap:10px}
.hero-art .podium-medal{width:32px;height:32px;font-size:var(--font-base)}
.hero-art .podium-bar{width:36px;height:5px}
.hero-art .podium-progress{min-width:70px;gap:6px}
.hero-art .podium-progress span{font-size:var(--font-xs);min-width:28px}}
/* 专业主题2栏布局，与酒红主题一致，避免切换跳动 */
body.theme-coursera .hero-grid{grid-template-columns:1.2fr .8fr;gap:48px}
/* ====== 6. 高优先级覆盖修复（确保覆盖旧的grid布局等）====== */
/* 确保hero-art内排行榜使用flex布局而非grid */
/* 高优先级：home-tabs按钮样式 */
/* 高优先级：hero-auth-link按钮 */
/* 高优先级：dashboard-head样式 */
body.theme-coursera .hero-art .ranking-podium,html body.theme-classic .hero-art .ranking-podium{display:flex;flex-direction:column;overflow:visible}
body.theme-coursera .hero-art .podium-list,html body.theme-classic .hero-art .podium-list{display:flex;flex-direction:column;gap:10px;overflow:visible}
body.theme-coursera .hero-art .podium-row,html body.theme-classic .hero-art .podium-row{display:flex;align-items:center;gap:14px;padding:12px 14px;overflow:visible;min-height:auto;height:auto;grid-template-columns:none}
body.theme-coursera .hero-art .podium-medal,html body.theme-classic .hero-art .podium-medal{width:38px;height:38px;flex-shrink:0;font-size:18px;font-weight:var(--weight-bold);display:grid;place-items:center;border-radius:10px;margin-top:0}
body.theme-coursera .hero-art .podium-info,html body.theme-classic .hero-art .podium-info{flex:1;min-width:0;overflow:visible;padding-left:2px;padding-right:0}
body.theme-coursera .hero-art .podium-info b,html body.theme-classic .hero-art .podium-info b{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.4;font-size:var(--font-base);font-weight:var(--weight-semibold);margin-bottom:0}
body.theme-coursera .hero-art .podium-info small,html body.theme-classic .hero-art .podium-info small{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.4;font-size:var(--font-sm);margin-top:2px;margin-bottom:0}
body.theme-coursera .hero-art .podium-progress,html body.theme-classic .hero-art .podium-progress{flex-shrink:0;display:flex;flex-direction:row;align-items:center;gap:8px;min-width:90px;padding-top:0}
body.theme-coursera .hero-art .podium-bar,html body.theme-classic .hero-art .podium-bar{width:56px;height:6px;border-radius:3px;overflow:hidden;flex-shrink:0}
body.theme-coursera .hero-art .podium-progress span,html body.theme-classic .hero-art .podium-progress span{font-size:var(--font-sm);font-weight:var(--weight-semibold);min-width:36px;text-align:right;flex-shrink:0}
body.theme-classic .home-tabs,html body.theme-coursera .home-tabs{display:flex;gap:10px;margin-bottom:20px;background:transparent;padding:0;border-radius:0;width:100%;border:none;flex-wrap:wrap}
body.theme-classic .home-tabs button.home-tab{border:1.5px solid var(--color-line-strong);background:transparent;padding:10px 24px;border-radius:10px;cursor:pointer;font-size:var(--font-base);font-weight:var(--weight-medium);color:var(--color-muted);transition:color var(--transition-fast), background-color var(--transition-fast);font-family:var(--sans);line-height:1.4}
body.theme-classic .home-tabs button.home-tab:hover{border-color:var(--color-brand);color:var(--color-brand);background:rgba(122,35,40,.04)}
body.theme-classic .home-tabs button.home-tab.active{background:var(--color-brand);border-color:var(--color-brand);color:var(--color-white);font-weight:var(--weight-semibold);box-shadow:0 4px 14px rgba(122,35,40,.25)}
body.theme-coursera .home-tabs button.home-tab{border:1.5px solid var(--color-line-strong);background:transparent;padding:10px 24px;border-radius:var(--radius-input);cursor:pointer;font-size:var(--font-base);font-weight:var(--weight-medium);color:var(--color-muted);transition:color var(--transition-fast), background-color var(--transition-fast);font-family:var(--sans);line-height:1.4}
body.theme-coursera .home-tabs button.home-tab:hover{border-color:var(--color-brand);color:var(--color-brand);background:color-mix(in srgb,var(--color-brand) 4%,transparent)}
body.theme-coursera .home-tabs button.home-tab.active{background:linear-gradient(135deg,var(--color-brand),var(--color-brand-hover));border-color:var(--color-brand);color:var(--color-white);font-weight:var(--weight-semibold);box-shadow:0 4px 14px color-mix(in srgb,var(--color-brand) 25%,transparent)}
body.theme-classic .hero-auth-link button{background:var(--paper);border:1px solid var(--color-line);color:var(--color-body);border-radius:10px;font-weight:var(--weight-medium);font-size:var(--font-base);padding:10px 20px;line-height:1.4;cursor:pointer;transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast)}
body.theme-classic .hero-auth-link button:hover{border-color:var(--color-brand);color:var(--color-brand);background:var(--color-white)}
body.theme-coursera .hero-auth-link button{background:var(--color-white);border:1.5px solid var(--color-line-strong);color:var(--color-body);border-radius:var(--radius-input);font-weight:var(--weight-medium);font-size:var(--font-base);padding:10px 22px;line-height:1.4;cursor:pointer;transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast)}
body.theme-coursera .hero-auth-link button:hover{border-color:var(--color-brand);color:var(--color-brand);background:color-mix(in srgb,var(--color-brand) 4%,transparent)}
html body .dashboard-head{display:flex;align-items:center;justify-content:space-between;margin:28px 0 16px;padding:0;background:none;border:none;position:static}
html body .dashboard-head:before,html body .dashboard-head:after{display:none;content:none}
body.theme-classic .dashboard-head span{font-size:18px;font-weight:var(--weight-bold);color:var(--color-ink);letter-spacing:-.01em;text-transform:none;font-family:var(--serif)}
body.theme-classic .dashboard-head small{font-size:var(--font-md);font-weight:400;color:var(--color-subtle);letter-spacing:0;text-transform:none;font-family:var(--sans)}
body.theme-coursera .dashboard-head{position:static;padding-left:0;margin-top:36px}
body.theme-coursera .dashboard-head span{font-size:20px;font-weight:var(--weight-bold);color:var(--color-ink);letter-spacing:-.01em;text-transform:none;font-family:var(--sans)}
body.theme-coursera .dashboard-head small{font-size:var(--font-md);font-weight:400;color:var(--color-subtle);letter-spacing:0;text-transform:none;font-family:var(--sans)}
/* =========================================================
   终极修复：hero-proof 统计数字标签水平排列（不竖排）
   ========================================================= */
body.theme-coursera .hero-proof{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:32px}
body.theme-coursera .hero-proof span{display:flex;flex-direction:column;justify-content:flex-start;align-items:flex-start;gap:6px;padding:16px 20px;border-left:1px solid var(--color-line);writing-mode:horizontal-tb;text-orientation:mixed;text-align:left;width:auto;min-width:0;box-sizing:border-box}
body.theme-coursera .hero-proof span:first-child{border-left:0;padding-left:0}
body.theme-coursera .hero-proof b{display:block;color:var(--color-ink);font-weight:800;font-size:var(--font-4xl);letter-spacing:-.03em;line-height:1;margin:0;padding:0;white-space:nowrap;writing-mode:horizontal-tb;text-orientation:mixed}
body.theme-coursera .hero-proof small{display:block;color:var(--color-muted);font-weight:var(--weight-medium);font-size:var(--font-md);line-height:1.4;letter-spacing:normal;white-space:nowrap;writing-mode:horizontal-tb;text-orientation:mixed;width:auto;max-width:none;min-width:0;margin:0;padding:0}
/* =========================================================
   终极修复：排行榜第3名（bronze）冷色调+蓝色进度条
   ========================================================= */
body.theme-coursera .ranking-podium .podium-row.rank-bronze{background:linear-gradient(135deg,var(--color-surface-2),var(--color-line));border-color:var(--color-line-strong)}
body.theme-coursera .ranking-podium .podium-row.rank-bronze .podium-bar i{background:linear-gradient(90deg,var(--color-brand),var(--color-info))}
body.theme-coursera .hero-art .podium-row.rank-bronze{background:linear-gradient(135deg,var(--color-surface-2),var(--color-line));border-color:var(--color-line-strong)}
/* =========================================================
   测验/选择题选项间距加大
   ========================================================= */
body.theme-coursera .quiz-options{gap:16px}
body.theme-coursera .quiz-option{padding:18px 22px;gap:14px;border-radius:12px}
body.theme-coursera .decision-options{gap:14px}
body.theme-coursera .decision-option{padding:18px 22px;border-radius:12px}
body.theme-coursera .exam-options{display:flex;flex-direction:column;gap:14px;margin-top:20px}
body.theme-coursera .exam-option{padding:16px 20px;gap:14px;border-radius:12px;background:var(--color-surface-2);border:1.5px solid var(--color-line);cursor:pointer;transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast)}
body.theme-coursera .exam-option:hover{border-color:var(--wine);background:var(--wine-soft)}
body.theme-coursera .exam-option.selected{border-color:var(--wine);background:var(--wine-soft)}
/* =========================================================
   排行榜页面：我的学习卡片（账户名+学习记录）
   ========================================================= */
body.theme-coursera .my-ranking-card{display:flex;flex-direction:column;gap:16px;background:linear-gradient(135deg,var(--wine-soft),color-mix(in srgb,var(--gold) 10%,var(--color-surface)));border:1.5px solid var(--wine-soft);border-radius:16px;padding:20px 24px;margin-bottom:20px}
body.theme-coursera .my-ranking-top{display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center}
body.theme-coursera .my-ranking-avatar{width:48px;height:48px;border-radius:50%;background:var(--wine);color:var(--color-white);display:grid;place-items:center;font:700 20px var(--font-heading);flex-shrink:0}
body.theme-coursera .my-ranking-info h3{margin:0 0 4px;font:600 17px var(--font-heading);color:var(--ink)}
body.theme-coursera .my-ranking-info p{margin:0;color:var(--color-muted);font-size:var(--font-sm)}
body.theme-coursera .my-ranking-tags{display:flex;gap:8px;flex-wrap:wrap}
body.theme-coursera .my-rank-tag{display:inline-flex;align-items:center;gap:5px;padding:6px 12px;border-radius:var(--radius-pill);border:1px solid color-mix(in srgb,var(--wine) 30%,var(--color-line));background:var(--color-surface);color:var(--wine);font-size:var(--font-xs);font-weight:600;cursor:pointer;transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);font-family:inherit}
body.theme-coursera .my-rank-tag:hover{background:var(--wine);color:var(--color-white);border-color:var(--wine)}
body.theme-coursera .my-ranking-stats{display:flex;gap:16px;justify-content:space-around;padding-top:14px;border-top:1px solid color-mix(in srgb,var(--wine) 15%,transparent)}
body.theme-coursera .my-ranking-stat{text-align:center;flex:1}
body.theme-coursera .my-ranking-stat b{display:block;font:700 22px var(--font-heading);color:var(--wine)}
body.theme-coursera .my-ranking-stat span{font-size:var(--font-xs);color:var(--color-muted)}
@media(max-width:640px){
  body.theme-coursera .my-ranking-card{gap:12px;padding:16px}
  body.theme-coursera .my-ranking-top{grid-template-columns:auto 1fr;gap:12px}
  body.theme-coursera .my-ranking-tags{grid-column:1/-1;justify-content:flex-start}
  body.theme-coursera .my-ranking-avatar{width:42px;height:42px;font-size:18px}
  body.theme-coursera .my-ranking-stat b{font-size:20px}
}
/* 酒红主题（默认）下的排行榜我的卡片样式 */
.my-ranking-card{display:flex;flex-direction:column;gap:16px;background:linear-gradient(135deg,var(--color-brand-soft),color-mix(in srgb,var(--color-gold) 10%,var(--color-surface)));border:1.5px solid color-mix(in srgb,var(--color-brand) 20%,var(--color-line));border-radius:16px;padding:20px 24px;margin-bottom:20px}
.my-ranking-top{display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center}
.my-ranking-avatar{width:48px;height:48px;border-radius:50%;background:var(--color-brand);color:var(--color-white);display:grid;place-items:center;font:700 20px var(--font-heading);flex-shrink:0}
.my-ranking-info h3{margin:0 0 4px;font:600 17px var(--font-heading);color:var(--color-ink)}
.my-ranking-info p{margin:0;color:var(--color-muted);font-size:var(--font-sm)}
.my-ranking-tags{display:flex;gap:8px;flex-wrap:wrap}
.my-rank-tag{display:inline-flex;align-items:center;gap:5px;padding:6px 12px;border-radius:var(--radius-pill);border:1px solid color-mix(in srgb,var(--color-brand) 30%,var(--color-line));background:var(--color-surface);color:var(--color-brand);font-size:var(--font-xs);font-weight:600;cursor:pointer;transition:background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);font-family:inherit}
.my-rank-tag:hover{background:var(--color-brand);color:var(--color-white);border-color:var(--color-brand)}
.my-ranking-stats{display:flex;gap:16px;justify-content:space-around;padding-top:14px;border-top:1px solid color-mix(in srgb,var(--color-brand) 15%,transparent)}
.my-ranking-stat{text-align:center;flex:1}
.my-ranking-stat b{display:block;font:700 22px var(--font-heading);color:var(--color-brand)}
.my-ranking-stat span{font-size:var(--font-xs);color:var(--color-muted)}
@media(max-width:640px){
  .my-ranking-card{gap:12px;padding:16px}
  .my-ranking-top{grid-template-columns:auto 1fr;gap:12px}
  .my-ranking-tags{grid-column:1/-1;justify-content:flex-start}
  .my-ranking-avatar{width:42px;height:42px;font-size:18px}
  .my-ranking-stat b{font-size:20px}
}
/* =========================================================
   常用工具：特殊工具定制建议卡片
   ========================================================= */
.tool-suggest-card{background:linear-gradient(135deg,color-mix(in srgb,var(--color-brand) 6%,var(--color-surface)),color-mix(in srgb,var(--color-gold) 8%,var(--color-surface-2)))!important;border:1.5px dashed color-mix(in srgb,var(--color-brand) 40%,var(--color-line))!important}
.tool-suggest-card:hover{border-color:var(--color-brand)!important;background:linear-gradient(135deg,color-mix(in srgb,var(--color-brand) 10%,var(--color-surface)),color-mix(in srgb,var(--color-gold) 12%,var(--color-surface-2)))!important}
.tool-suggest-card .page-tool-icon.suggest-icon{background:linear-gradient(135deg,var(--color-brand),var(--color-gold-soft));color:var(--color-white)}
body.theme-coursera .tool-suggest-card{background:linear-gradient(135deg,var(--wine-soft),color-mix(in srgb,var(--gold) 10%,var(--color-surface)))!important;border-color:color-mix(in srgb,var(--wine) 40%,var(--color-line))!important}
body.theme-coursera .tool-suggest-card:hover{border-color:var(--wine)!important}
body.theme-coursera .tool-suggest-card .page-tool-icon.suggest-icon{background:linear-gradient(135deg,var(--wine),var(--gold));color:var(--color-white)}
/* feedback-dialog 中 input 样式（供工具建议复用） */
.feedback-dialog input[type="text"]:focus,.feedback-dialog textarea:focus{border-color:var(--color-brand)!important;outline:none;box-shadow:0 0 0 3px color-mix(in srgb,var(--color-brand) 10%,transparent)}
body.theme-coursera .hero-art .podium-row.rank-bronze .podium-bar i{background:linear-gradient(90deg,var(--color-brand),var(--color-info))}
/* =========================================================
   终极修复：登录/注册按钮与体验金标第一讲按钮高度统一
   ========================================================= */
body.theme-coursera .hero-auth-link button,html body.theme-coursera .hero-actions .ghost-btn{font-size:var(--font-base);font-weight:var(--weight-semibold);line-height:1.4;padding:10px 22px;border-radius:var(--radius-input);border:1.5px solid #b6bec6;box-sizing:border-box;height:auto;min-height:0;vertical-align:middle;color:#1c1d1f}
body.theme-coursera .hero-auth-link button:hover,html body.theme-coursera .hero-actions .ghost-btn:hover{border-color:var(--color-brand);color:var(--color-brand);background:color-mix(in srgb,var(--color-brand) 4%,transparent);box-shadow:0 1px 3px color-mix(in srgb,var(--color-ink) 8%,transparent)}
/* =========================================================
   证书展示区网格纹理 - 专业主题蓝色覆盖
   ========================================================= */
/* 专业主题下岗位推荐徽章配色 */
/* 专业主题下搜索框和分段控制器 */
/* 专业主题下证据方法步骤卡片 */
body.theme-coursera .cert-showcase{background-image:linear-gradient(color-mix(in srgb,var(--color-brand) 3%,transparent) 1px,transparent 1px),linear-gradient(90deg,color-mix(in srgb,var(--color-brand) 3%,transparent) 1px,transparent 1px);background-size:40px 40px}
body.theme-coursera .course-item.recommended:before{background:var(--color-brand-soft);color:var(--color-brand);left:0;top:0;right:auto;border-radius:0 0 10px 0}
body.theme-coursera .segmented{background:var(--color-surface-3);border-color:var(--color-line)}
body.theme-coursera .segmented button.active{background:var(--color-white);color:var(--color-brand);box-shadow:0 1px 3px color-mix(in srgb,var(--color-ink) 8%,transparent)}
body.theme-coursera .method-steps article{background:var(--color-surface-2);border:1px solid var(--color-surface-3)}