:root{
  --primary:#2563eb;
  --accent:#06b6d4;
  --bg:#f8fafc;
  --text:#0f172a;
  --border:#cbd5e1;
  --card-bg:#ffffff;
  --muted:#64748b;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:'Inter','Noto Sans SC',system-ui,-apple-system,sans-serif;
  line-height:1.7;
  font-size:16px;
  position:relative;
}
/* 噪点纹理 */
body::before{
  content:"";
  position:fixed;
  top:0;left:0;width:100%;height:100%;
  pointer-events:none;
  opacity:0.03;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  z-index:9999;
}
h1,h2,h3,.brand-font{
  font-family:'ZCOOL KuaiLe','Inter',sans-serif;
  font-weight:400;
  letter-spacing:0.02em;
}
h2{
  font-size:2.4rem;
  margin-bottom:1.2rem;
  position:relative;
  display:inline-block;
}
h2::after{
  content:"";
  display:block;
  width:60px;
  height:4px;
  background:var(--primary);
  margin-top:10px;
  border-radius:2px;
}
.section-padding{padding:90px 0;}
.container{max-width:1140px;}
/* 导航 */
.navbar-custom{
  background:rgba(255,255,255,0.85);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  transition:all 0.3s ease;
  padding:14px 0;
  z-index:1000;
}
.navbar-custom.scrolled{
  background:rgba(255,255,255,0.96);
  box-shadow:0 2px 20px rgba(15,23,42,0.06);
}
.navbar-custom .navbar-brand{
  font-family:'ZCOOL KuaiLe',sans-serif;
  font-size:1.6rem;
  color:var(--primary);
  font-weight:400;
  letter-spacing:1px;
}
.navbar-custom .nav-link{
  font-weight:500;
  color:var(--text);
  margin:0 6px;
  padding:8px 12px;
  border-radius:8px;
  transition:all 0.2s;
}
.navbar-custom .nav-link:hover{
  color:var(--primary);
  background:rgba(37,99,235,0.05);
}
.navbar-toggler{
  border:2px solid var(--primary);
  border-radius:8px;
}
.navbar-toggler:focus{box-shadow:none;}
/* Hero */
.hero-section{
  position:relative;
  min-height:85vh;
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(135deg,rgba(15,23,42,0.75),rgba(37,99,235,0.55)),url('{随机图片}') center/cover no-repeat;
  color:#fff;
  text-align:center;
  border-bottom:4px solid var(--primary);
}
.hero-content{max-width:780px;padding:40px 20px;}
.hero-content h1{
  font-size:4.2rem;
  margin-bottom:20px;
  text-shadow:0 4px 20px rgba(0,0,0,0.3);
  line-height:1.1;
}
.hero-content p.lead{
  font-size:1.3rem;
  margin-bottom:30px;
  opacity:0.95;
  font-weight:300;
  letter-spacing:0.5px;
}
.hero-badge{
  display:inline-block;
  background:var(--accent);
  color:#fff;
  padding:6px 18px;
  border-radius:30px;
  font-size:0.9rem;
  font-weight:600;
  letter-spacing:1px;
  margin-bottom:25px;
}
.btn-outline-light{
  border:2px solid rgba(255,255,255,0.8);
  border-radius:50px;
  padding:12px 32px;
  font-weight:600;
  letter-spacing:0.5px;
  transition:all 0.3s;
}
.btn-outline-light:hover{
  background:#fff;
  color:var(--primary);
  border-color:#fff;
  transform:translateY(-2px);
}
.btn-primary-custom{
  background:var(--primary);
  border:2px solid var(--primary);
  color:#fff;
  border-radius:50px;
  padding:12px 32px;
  font-weight:600;
  letter-spacing:0.5px;
  transition:all 0.3s;
  text-decoration:none;
  display:inline-block;
}
.btn-primary-custom:hover{
  background:#1d4ed8;
  border-color:#1d4ed8;
  transform:translateY(-2px);
  color:#fff;
}
/* 长文 */
.story-section{
  background:var(--bg);
}
.story-section .story-text{
  font-size:1.05rem;
  color:#334155;
  max-width:800px;
  margin:0 auto 40px;
}
.story-section .story-text p{margin-bottom:20px;}
.highlight-number{
  font-size:3rem;
  font-weight:800;
  color:var(--primary);
  display:block;
  line-height:1.1;
  font-family:'Inter',sans-serif;
}
.story-stats{
  display:flex;
  justify-content:space-around;
  flex-wrap:wrap;
  margin-top:40px;
  border-top:1px solid var(--border);
  padding-top:40px;
}
.story-stats .stat-item{
  text-align:center;
  padding:10px 30px;
}
.story-stats .stat-label{
  color:var(--muted);
  font-size:0.95rem;
  margin-top:5px;
}
/* 对比表格 */
.compare-section{
  background:#fff;
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.compare-table{
  width:100%;
  border-collapse:collapse;
  background:var(--card-bg);
  border-radius:12px;
  overflow:hidden;
  box-shadow:0 0 0 1px var(--border);
}
.compare-table th,.compare-table td{
  padding:18px 24px;
  border-bottom:1px solid var(--border);
  text-align:center;
}
.compare-table th{
  background:var(--primary);
  color:#fff;
  font-weight:600;
  font-size:1.1rem;
  letter-spacing:0.3px;
}
.compare-table td{
  color:var(--text);
}
.compare-table tr:last-child th,.compare-table tr:last-child td{border-bottom:none;}
.compare-table .feature-col{
  text-align:left;
  font-weight:500;
  background:rgba(37,99,235,0.03);
}
.compare-table .fa-check{color:var(--primary);font-size:1.2rem;}
.compare-table .fa-times{color:#94a3b8;font-size:1.2rem;}
.compare-table .fa-minus{color:#94a3b8;font-size:1rem;}
/* FAQ */
.faq-section{
  background:var(--bg);
}
.accordion-item{
  background:transparent;
  border:none;
  margin-bottom:12px;
}
.accordion-button{
  background:var(--card-bg);
  border:1px solid var(--border);
  border-radius:10px !important;
  padding:18px 24px;
  font-weight:500;
  font-size:1.05rem;
  color:var(--text);
  box-shadow:none !important;
  transition:all 0.3s;
}
.accordion-button:not(.collapsed){
  color:var(--primary);
  background:rgba(37,99,235,0.03);
  border-color:var(--primary);
}
.accordion-button:focus{
  box-shadow:none;
  border-color:var(--primary);
}
.accordion-button::after{
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%232563eb'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
  transition:transform 0.3s;
}
.accordion-body{
  padding:20px 24px;
  background:var(--card-bg);
  border:1px solid var(--border);
  border-top:none;
  border-radius:0 0 10px 10px;
  color:#475569;
}
/* 特色标签页 */
.features-section{
  background:#fff;
  border-bottom:1px solid var(--border);
}
.nav-tabs-custom{
  border-bottom:2px solid var(--border);
  justify-content:center;
  margin-bottom:40px;
}
.nav-tabs-custom .nav-link{
  border:none;
  background:transparent;
  color:var(--muted);
  font-weight:500;
  padding:12px 24px;
  margin:0 4px;
  border-bottom:3px solid transparent;
  border-radius:0;
  transition:all 0.2s;
  font-size:1.05rem;
}
.nav-tabs-custom .nav-link:hover{
  color:var(--primary);
  border-bottom-color:rgba(37,99,235,0.3);
}
.nav-tabs-custom .nav-link.active{
  color:var(--primary);
  border-bottom-color:var(--primary);
  background:transparent;
}
.feature-card{
  background:var(--card-bg);
  border:1px solid var(--border);
  border-radius:12px;
  padding:30px 24px;
  height:100%;
  transition:transform 0.3s,border-color 0.3s,box-shadow 0.3s;
}
.feature-card:hover{
  transform:scale(1.02);
  border-color:var(--primary);
  box-shadow:0 4px 20px rgba(37,99,235,0.08);
}
.feature-card .icon{
  font-size:2.2rem;
  color:var(--primary);
  margin-bottom:18px;
  display:inline-block;
}
.feature-card h4{
  font-family:'Inter',sans-serif;
  font-weight:700;
  font-size:1.2rem;
  margin-bottom:10px;
  color:var(--text);
}
.feature-card p{
  color:var(--muted);
  font-size:0.95rem;
}
/* 时间线 */
.timeline-section{
  background:var(--bg);
}
.timeline{
  position:relative;
  max-width:800px;
  margin:0 auto;
  padding:20px 0;
}
.timeline::before{
  content:"";
  position:absolute;
  left:50%;
  top:0;
  bottom:0;
  width:2px;
  background:var(--border);
  transform:translateX(-50%);
}
.timeline-item{
  position:relative;
  width:50%;
  padding:20px 40px;
}
.timeline-item:nth-child(odd){left:0;text-align:right;}
.timeline-item:nth-child(even){left:50%;text-align:left;}
.timeline-item::before{
  content:"";
  position:absolute;
  top:32px;
  width:14px;
  height:14px;
  background:var(--primary);
  border-radius:50%;
  border:3px solid #fff;
  box-shadow:0 0 0 2px var(--primary);
}
.timeline-item:nth-child(odd)::before{right:-7px;}
.timeline-item:nth-child(even)::before{left:-7px;}
.timeline-content{
  background:var(--card-bg);
  border:1px solid var(--border);
  border-radius:10px;
  padding:20px 24px;
  display:inline-block;
  text-align:left;
  max-width:100%;
  transition:all 0.3s;
}
.timeline-content:hover{
  border-color:var(--primary);
  transform:scale(1.02);
}
.timeline-content h4{
  font-family:'Inter',sans-serif;
  font-weight:700;
  color:var(--primary);
  font-size:1.1rem;
  margin-bottom:6px;
}
.timeline-content .time{
  font-size:0.85rem;
  color:var(--muted);
  margin-bottom:8px;
  display:block;
}
.timeline-content p{
  font-size:0.95rem;
  color:#475569;
}
/* CTA */
.cta-section{
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#fff;
  text-align:center;
  padding:80px 0;
}
.cta-section h2{
  color:#fff;
  font-size:2.8rem;
  margin-bottom:15px;
}
.cta-section h2::after{background:#fff;}
.cta-section p{
  font-size:1.1rem;
  margin-bottom:30px;
  opacity:0.95;
  max-width:600px;
  margin-left:auto;
  margin-right:auto;
}
.btn-white{
  background:#fff;
  color:var(--primary);
  border:none;
  border-radius:50px;
  padding:14px 40px;
  font-weight:700;
  font-size:1.05rem;
  transition:all 0.3s;
  display:inline-block;
  text-decoration:none;
}
.btn-white:hover{
  transform:translateY(-3px);
  box-shadow:0 8px 30px rgba(0,0,0,0.2);
  color:var(--primary);
}
/* 友情链接 */
.friend-links{
  background:#fff;
  padding:50px 0;
  border-top:1px solid var(--border);
}
.friend-links h3{
  font-size:1.4rem;
  margin-bottom:20px;
  color:var(--text);
}
.friend-links .links{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
}
.friend-links .links a{
  color:var(--muted);
  text-decoration:none;
  border:1px solid var(--border);
  padding:6px 16px;
  border-radius:20px;
  font-size:0.9rem;
  transition:all 0.2s;
}
.friend-links .links a:hover{
  color:var(--primary);
  border-color:var(--primary);
}
/* 页脚 */
.footer{
  background:var(--text);
  color:#94a3b8;
  padding:40px 0 30px;
}
.footer a{
  color:#94a3b8;
  text-decoration:none;
  transition:color 0.2s;
}
.footer a:hover{color:#fff;}
.footer .brand{
  font-family:'ZCOOL KuaiLe',sans-serif;
  font-size:1.8rem;
  color:#fff;
  margin-bottom:10px;
}
.footer .footer-links{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:24px;
  margin:20px 0;
}
/* 回到顶部 */
.back-to-top{
  position:fixed;
  bottom:30px;
  right:30px;
  width:48px;
  height:48px;
  background:var(--primary);
  color:#fff;
  border:none;
  border-radius:50%;
  font-size:1.2rem;
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(20px);
  transition:all 0.4s ease;
  box-shadow:0 4px 15px rgba(37,99,235,0.3);
  z-index:999;
}
.back-to-top.show{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.back-to-top:hover{
  background:#1d4ed8;
  transform:translateY(-3px);
}
/* 响应式 */
@media(max-width:768px){
  .hero-content h1{font-size:2.6rem;}
  .section-padding{padding:60px 0;}
  h2{font-size:1.9rem;}
  .timeline::before{left:20px;}
  .timeline-item{width:100%;left:0 !important;text-align:left !important;padding-left:60px;padding-right:20px;}
  .timeline-item::before{left:13px !important;right:auto !important;}
  .story-stats{flex-direction:column;gap:20px;}
  .compare-table{font-size:0.85rem;}
  .compare-table th,.compare-table td{padding:12px 10px;}
  .cta-section h2{font-size:2rem;}
}

/* --- 子页面追加 --- */
/* 本页专属样式 - 补充站点样式表未覆盖的部分 */
        .about-hero {
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.08) 0%, rgba(6, 182, 212, 0.08) 100%);
            padding: 80px 0 60px;
            border-bottom: 1px solid var(--border);
        }
.about-hero h1 {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }
.about-hero h1 span {
            color: var(--primary);
        }
.about-hero .lead {
            color: var(--muted);
            font-size: 1.15rem;
            max-width: 720px;
            line-height: 1.8;
        }
.about-section {
            padding: 60px 0;
        }
.about-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 24px;
            position: relative;
            padding-bottom: 12px;
        }
.about-section h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 48px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
.about-section p {
            color: var(--text);
            line-height: 1.9;
            font-size: 1rem;
            margin-bottom: 16px;
        }
.about-section .text-muted-custom {
            color: var(--muted);
        }
.values-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 28px 24px;
            height: 100%;
            transition: all 0.3s ease;
        }
.values-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 24px rgba(0,0,0,0.08);
        }
.values-card .icon-wrapper {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background: rgba(37, 99, 235, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            color: var(--primary);
            font-size: 1.3rem;
        }
.values-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }
.values-card p {
            color: var(--muted);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 0;
        }
.stats-band {
            background: var(--primary);
            padding: 48px 0;
            margin: 40px 0;
        }
.stats-band .stat-item {
            text-align: center;
            color: #fff;
        }
.stats-band .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            display: block;
            margin-bottom: 4px;
        }
.stats-band .stat-label {
            font-size: 0.95rem;
            opacity: 0.9;
        }
.team-note {
            background: rgba(37, 99, 235, 0.05);
            border-left: 4px solid var(--primary);
            padding: 16px 20px;
            border-radius: 0 8px 8px 0;
            margin: 24px 0;
        }
.team-note p {
            margin-bottom: 0;
            color: var(--text);
            font-size: 0.95rem;
        }
.about-hero {
                padding: 50px 0 40px;
            }
.about-hero h1 {
                font-size: 1.9rem;
            }
.about-section h2 {
                font-size: 1.5rem;
            }
.stats-band .stat-number {
                font-size: 1.6rem;
            }

/* --- 子页面追加 --- */
/* 本页专属样式 - 免责声明页面 */
    .disclaimer-section { padding: 5rem 0; }
.disclaimer-hero { background: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%); color: #fff; padding: 3.5rem 0; margin-bottom: 2.5rem; }
.disclaimer-hero h1 { font-weight: 800; font-size: 2.5rem; margin-bottom: 0.75rem; }
.disclaimer-hero p { font-size: 1.15rem; opacity: 0.9; max-width: 700px; margin: 0 auto; }
.disclaimer-container { max-width: 960px; margin: 0 auto; padding: 0 1.5rem; }
.disclaimer-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 12px; padding: 2rem 2.25rem; margin-bottom: 1.75rem; box-shadow: 0 4px 20px rgba(15, 23, 42, 0.04); }
.disclaimer-card h2 { font-size: 1.35rem; font-weight: 700; color: var(--primary); margin-bottom: 1.1rem; display: flex; align-items: center; gap: 0.65rem; }
.disclaimer-card h2 i { font-size: 1.15rem; color: var(--accent); }
.disclaimer-card h3 { font-size: 1.1rem; font-weight: 600; color: var(--text); margin-top: 1.2rem; margin-bottom: 0.5rem; }
.disclaimer-card p { font-size: 0.95rem; line-height: 1.8; color: var(--muted); margin-bottom: 0.8rem; }
.disclaimer-card ul { padding-left: 1.25rem; margin-bottom: 1rem; }
.disclaimer-card ul li { font-size: 0.95rem; line-height: 1.8; color: var(--muted); margin-bottom: 0.35rem; }
.disclaimer-card ul li strong { color: var(--text); font-weight: 600; }
.disclaimer-card .highlight-box { background: rgba(37, 99, 235, 0.06); border-left: 4px solid var(--primary); padding: 1rem 1.25rem; border-radius: 0 8px 8px 0; margin: 1.25rem 0; }
.disclaimer-card .highlight-box p { margin-bottom: 0.25rem; font-size: 0.92rem; }
.last-updated { text-align: center; font-size: 0.85rem; color: var(--muted); margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--border); }
/* 覆盖 Bootstrap 卡片等组件配色（如有使用） */
    .card, .card-body, .card-title, .card-text { background: var(--card-bg); color: var(--text); border-color: var(--border); }
.accordion-item, .accordion-button, .accordion-body { background: var(--card-bg); color: var(--text); border-color: var(--border); }
.disclaimer-hero h1 { font-size: 1.85rem; }
.disclaimer-card { padding: 1.5rem 1.25rem; }
.disclaimer-card h2 { font-size: 1.15rem; }

/* --- 子页面追加 --- */
/* 本页专属样式 */
        .guide-hero {
            background: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
            padding: 80px 0 60px;
            color: #fff;
            margin-bottom: 50px;
        }
.guide-hero h1 {
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 15px;
        }
.guide-hero p {
            font-size: 1.1rem;
            opacity: .95;
            max-width: 700px;
        }
.guide-section {
            padding: 40px 0;
            border-bottom: 1px solid var(--border);
        }
.guide-section:last-child {
            border-bottom: none;
        }
.guide-section h2 {
            font-weight: 800;
            color: var(--primary);
            font-size: 1.7rem;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
.guide-section h2 i {
            font-size: 1.3rem;
            color: var(--accent);
        }
.guide-section h3 {
            font-weight: 700;
            color: var(--text);
            font-size: 1.2rem;
            margin: 25px 0 12px;
        }
.guide-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 25px;
            height: 100%;
            transition: transform .2s, box-shadow .2s;
        }
.guide-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(0,0,0,.08);
        }
.guide-card .icon-circle {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            color: #fff;
            font-size: 1.2rem;
        }
.guide-card h4 {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 10px;
            color: var(--text);
        }
.guide-card p {
            color: var(--muted);
            font-size: .95rem;
            line-height: 1.7;
            margin-bottom: 0;
        }
.step-list {
            padding: 0;
            list-style: none;
            counter-reset: step;
        }
.step-list li {
            counter-increment: step;
            padding: 12px 0 12px 45px;
            position: relative;
            color: var(--text);
            border-bottom: 1px dashed var(--border);
            font-size: .95rem;
            line-height: 1.6;
        }
.step-list li:last-child {
            border-bottom: none;
        }
.step-list li::before {
            content: counter(step);
            position: absolute;
            left: 0;
            top: 10px;
            width: 30px;
            height: 30px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: .85rem;
            font-weight: 700;
        }
.tip-box {
            background: rgba(6, 182, 212, .08);
            border-left: 4px solid var(--accent);
            padding: 15px 20px;
            border-radius: 0 8px 8px 0;
            margin: 20px 0;
            font-size: .95rem;
            color: var(--text);
        }
.tip-box i {
            color: var(--accent);
            margin-right: 8px;
        }
.table-wrap {
            overflow-x: auto;
            background: var(--card-bg);
            border-radius: 12px;
            border: 1px solid var(--border);
            padding: 10px;
        }
.guide-table {
            width: 100%;
            border-collapse: collapse;
            font-size: .95rem;
        }
.guide-table th {
            background: rgba(37, 99, 235, .08);
            color: var(--primary);
            font-weight: 700;
            padding: 12px 15px;
            text-align: left;
            border-bottom: 2px solid var(--primary);
        }
.guide-table td {
            padding: 12px 15px;
            border-bottom: 1px solid var(--border);
            color: var(--text);
        }
.guide-table tr:last-child td {
            border-bottom: none;
        }
.guide-table tr:hover td {
            background: rgba(37, 99, 235, .03);
        }
.badge-guide {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-size: .75rem;
            padding: 3px 10px;
            border-radius: 20px;
            font-weight: 600;
        }
.guide-hero h1 {
                font-size: 1.8rem;
            }
.guide-section h2 {
                font-size: 1.4rem;
            }

/* --- 子页面追加 --- */
.ranking-hero {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            padding: 5rem 0 4rem;
            position: relative;
            overflow: hidden;
        }
.ranking-hero h1 {
            color: #fff;
            font-weight: 800;
            font-size: 2.8rem;
            margin-bottom: 0.5rem;
        }
.ranking-hero p {
            color: rgba(255,255,255,.9);
            font-size: 1.15rem;
            max-width: 700px;
            margin-bottom: 1rem;
        }
.ranking-tabs {
            background: var(--card-bg);
            border-bottom: 1px solid var(--border);
            padding: 1rem 0;
        }
.ranking-tabs .nav-link {
            color: var(--muted);
            font-weight: 600;
            padding: .6rem 1.2rem;
            border-radius: 50px;
            transition: all .2s;
        }
.ranking-tabs .nav-link:hover {
            color: var(--primary);
        }
.ranking-tabs .nav-link.active {
            background: var(--primary);
            color: #fff;
        }
.rank-list {
            background: var(--card-bg);
            border-radius: 12px;
            border: 1px solid var(--border);
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            display: flex;
            gap: 1.2rem;
            align-items: center;
            transition: box-shadow .2s;
        }
.rank-list:hover {
            box-shadow: 0 8px 25px rgba(0,0,0,.06);
        }
.rank-num {
            font-size: 2rem;
            font-weight: 900;
            color: var(--primary);
            min-width: 55px;
            text-align: center;
            line-height: 1;
        }
.rank-list:nth-child(2) .rank-num,
        .rank-list:nth-child(3) .rank-num,
        .rank-list:nth-child(4) .rank-num {
            color: #f59e0b;
        }
.rank-cover {
            width: 80px;
            height: 100px;
            border-radius: 8px;
            object-fit: cover;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.8rem;
            flex-shrink: 0;
        }
.rank-info {
            flex: 1;
            min-width: 0;
        }
.rank-info h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: .3rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
.rank-info .author {
            color: var(--muted);
            font-size: .9rem;
            margin-bottom: .3rem;
        }
.rank-info .desc {
            color: var(--muted);
            font-size: .88rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
.rank-meta {
            display: flex;
            gap: .8rem;
            align-items: center;
            margin-top: .4rem;
            flex-wrap: wrap;
        }
.rank-meta .tag {
            background: rgba(37,99,235,.08);
            color: var(--primary);
            padding: .15rem .6rem;
            border-radius: 4px;
            font-size: .78rem;
            font-weight: 600;
        }
.rank-meta .score {
            color: #f59e0b;
            font-weight: 700;
            font-size: .9rem;
        }
.rank-meta .views {
            color: var(--muted);
            font-size: .82rem;
        }
.rank-arrow {
            font-size: 1.2rem;
            color: var(--muted);
            opacity: .5;
            flex-shrink: 0;
        }
.rank-arrow i {
            transition: transform .2s;
        }
.rank-list:hover .rank-arrow i {
            transform: translateX(4px);
            color: var(--primary);
        }
.section-title {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text);
            margin-bottom: .3rem;
        }
.section-sub {
            color: var(--muted);
            margin-bottom: 2rem;
        }
.update-note {
            background: rgba(6,182,212,.1);
            border-left: 4px solid var(--accent);
            padding: .8rem 1rem;
            border-radius: 0 8px 8px 0;
            color: var(--text);
            margin-bottom: 2rem;
            font-size: .95rem;
        }
.ranking-hero h1 {
                font-size: 2rem;
            }
.rank-list {
                padding: 1rem;
                gap: .8rem;
            }
.rank-num {
                font-size: 1.5rem;
                min-width: 40px;
            }
.rank-cover {
                width: 60px;
                height: 80px;
                font-size: 1.2rem;
            }
.rank-info h3 {
                font-size: 1rem;
            }
.rank-info .desc {
                -webkit-line-clamp: 1;
            }

/* --- Bootstrap 组件配色适配(程序自动补,避免白底黑字) --- */
.accordion-header { background:transparent !important; }