/* roulang page: index */
/* ========== 设计变量 ========== */
:root {
  --primary: #0f1923;
  --primary-light: #1b2a3a;
  --primary-dark: #070d13;
  --accent: #d4a849;
  --accent-hover: #c49530;
  --accent-light: #f0d99b;
  --red: #e74c3c;
  --red-hover: #c0392b;
  --bg: #f4f6f8;
  --bg-white: #ffffff;
  --bg-card: #ffffff;
  --bg-dark: #0f1923;
  --text: #1a1a2e;
  --text-light: #6b7280;
  --text-white: #f9fafb;
  --border: #e5e7eb;
  --border-light: #f0f0f0;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow: 0 8px 32px rgba(15,25,35,0.10);
  --shadow-lg: 0 16px 48px rgba(15,25,35,0.18);
  --shadow-accent: 0 8px 24px rgba(212,168,73,0.30);
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  --font: 'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
  --max-width: 1200px;
  --nav-height: 72px;
}
/* ========== Reset & Base ========== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;font-size:16px;}
body{font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;}
a{color:inherit;text-decoration:none;transition:var(--transition);}
a:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px;}
img{max-width:100%;height:auto;display:block;}
button,input,textarea,select{font-family:inherit;font-size:inherit;transition:var(--transition);}
ul,ol{list-style:none;}
.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px;}
@media(max-width:768px){.container{padding:0 16px;}}
/* ========== 导航 ========== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;padding:12px 0;background:transparent;pointer-events:none;transition:var(--transition);}
.site-header.scrolled{background:rgba(15,25,35,0.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:0 4px 24px rgba(0,0,0,0.20);padding:6px 0;}
.nav-dock{max-width:860px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 28px;height:60px;background:rgba(15,25,35,0.85);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-radius:40px;box-shadow:0 8px 40px rgba(0,0,0,0.25);border:1px solid rgba(255,255,255,0.06);pointer-events:auto;transition:var(--transition);}
.site-header.scrolled .nav-dock{background:rgba(15,25,35,0.92);box-shadow:0 6px 32px rgba(0,0,0,0.30);}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:1.35rem;font-weight:700;color:var(--text-white);letter-spacing:0.5px;}
.nav-logo i{color:var(--accent);font-size:1.5rem;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{position:relative;padding:8px 18px;font-size:0.92rem;font-weight:500;color:rgba(255,255,255,0.75);border-radius:30px;transition:var(--transition);white-space:nowrap;}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,0.08);}
.nav-links a.active{color:#fff;background:var(--accent);box-shadow:0 4px 16px rgba(212,168,73,0.30);}
.nav-links a.active:hover{background:var(--accent-hover);}
.nav-toggle{display:none;background:none;border:none;color:var(--text-white);font-size:1.6rem;cursor:pointer;padding:4px;pointer-events:auto;}
@media(max-width:768px){
  .nav-dock{padding:0 18px;height:56px;border-radius:32px;}
  .nav-logo{font-size:1.15rem;}
  .nav-logo i{font-size:1.25rem;}
  .nav-links{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(15,25,35,0.98);backdrop-filter:blur(24px);flex-direction:column;justify-content:center;gap:12px;opacity:0;visibility:hidden;transition:var(--transition);pointer-events:none;border-radius:0;}
  .nav-links.open{opacity:1;visibility:visible;pointer-events:auto;}
  .nav-links a{font-size:1.3rem;padding:14px 32px;}
  .nav-toggle{display:block;position:relative;z-index:1100;}
}
/* ========== Hero ========== */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;background:var(--primary-dark);overflow:hidden;padding:120px 24px 80px;}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center center/cover no-repeat;opacity:0.45;transform:scale(1.02);transition:transform 8s ease;}
.hero:hover .hero-bg{transform:scale(1.06);}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(145deg,rgba(15,25,35,0.88) 0%,rgba(15,25,35,0.60) 50%,rgba(15,25,35,0.88) 100%);}
.hero-content{position:relative;z-index:2;max-width:820px;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(212,168,73,0.18);border:1px solid rgba(212,168,73,0.30);border-radius:40px;padding:8px 22px;font-size:0.85rem;color:var(--accent-light);letter-spacing:1px;margin-bottom:28px;backdrop-filter:blur(4px);}
.hero-badge i{font-size:0.9rem;}
.hero h1{font-size:3.8rem;font-weight:800;color:var(--text-white);line-height:1.15;margin-bottom:20px;letter-spacing:-0.5px;}
.hero h1 span{color:var(--accent);}
.hero p{font-size:1.2rem;color:rgba(255,255,255,0.75);max-width:600px;margin:0 auto 36px;line-height:1.7;}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 34px;border-radius:40px;font-weight:600;font-size:1rem;border:none;cursor:pointer;transition:var(--transition);}
.btn-accent{background:var(--accent);color:var(--primary-dark);box-shadow:var(--shadow-accent);}
.btn-accent:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 12px 32px rgba(212,168,73,0.40);}
.btn-outline{background:transparent;color:var(--text-white);border:1.5px solid rgba(255,255,255,0.25);}
.btn-outline:hover{background:rgba(255,255,255,0.10);border-color:rgba(255,255,255,0.50);transform:translateY(-2px);}
.hero-stats{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:40px 60px;justify-content:center;margin-top:56px;padding-top:40px;border-top:1px solid rgba(255,255,255,0.10);}
.hero-stat{text-align:center;}
.hero-stat-num{font-size:2.4rem;font-weight:800;color:var(--accent);letter-spacing:-0.5px;}
.hero-stat-label{font-size:0.9rem;color:rgba(255,255,255,0.55);margin-top:4px;}
@media(max-width:768px){
  .hero h1{font-size:2.4rem;}
  .hero p{font-size:1rem;}
  .hero-stats{gap:24px 36px;margin-top:36px;padding-top:28px;}
  .hero-stat-num{font-size:1.8rem;}
}
@media(max-width:520px){
  .hero h1{font-size:1.8rem;}
  .btn{padding:12px 26px;font-size:0.92rem;}
}
/* ========== 板块通用 ========== */
.section{padding:90px 0;}
.section-dark{background:var(--primary-dark);color:var(--text-white);}
.section-light{background:var(--bg-white);}
.section-gray{background:var(--bg);}
.section-header{text-align:center;margin-bottom:56px;}
.section-header h2{font-size:2.4rem;font-weight:700;color:var(--text);margin-bottom:12px;letter-spacing:-0.3px;}
.section-dark .section-header h2{color:var(--text-white);}
.section-header p{font-size:1.1rem;color:var(--text-light);max-width:600px;margin:0 auto;line-height:1.7;}
.section-dark .section-header p{color:rgba(255,255,255,0.60);}
.section-tag{display:inline-block;padding:4px 18px;border-radius:40px;background:rgba(212,168,73,0.12);color:var(--accent);font-size:0.82rem;font-weight:600;letter-spacing:0.5px;margin-bottom:16px;border:1px solid rgba(212,168,73,0.20);}
.section-dark .section-tag{background:rgba(212,168,73,0.15);border-color:rgba(212,168,73,0.25);}
@media(max-width:768px){
  .section{padding:60px 0;}
  .section-header h2{font-size:1.8rem;}
  .section-header p{font-size:1rem;}
}
/* ========== 关于 ========== */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;}
.about-image{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg);position:relative;}
.about-image img{width:100%;height:400px;object-fit:cover;transition:transform 0.6s ease;}
.about-image:hover img{transform:scale(1.03);}
.about-content h3{font-size:1.8rem;font-weight:700;margin-bottom:16px;color:var(--text);}
.about-content p{color:var(--text-light);line-height:1.8;margin-bottom:16px;font-size:1rem;}
.about-features{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px;}
.about-feature{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--bg);border-radius:var(--radius-sm);border:1px solid var(--border-light);}
.about-feature i{color:var(--accent);font-size:1.2rem;width:24px;text-align:center;}
.about-feature span{font-size:0.92rem;font-weight:500;color:var(--text);}
@media(max-width:768px){
  .about-grid{grid-template-columns:1fr;gap:32px;}
  .about-content h3{font-size:1.5rem;}
  .about-features{grid-template-columns:1fr;}
}
/* ========== 分类卡片 ========== */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.cat-card{position:relative;border-radius:var(--radius);overflow:hidden;background:var(--bg-card);box-shadow:var(--shadow);transition:var(--transition);cursor:pointer;border:1px solid var(--border);}
.cat-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);}
.cat-card-img{width:100%;height:200px;object-fit:cover;transition:transform 0.5s ease;}
.cat-card:hover .cat-card-img{transform:scale(1.06);}
.cat-card-body{padding:24px 20px 26px;}
.cat-card-body h3{font-size:1.15rem;font-weight:700;margin-bottom:6px;color:var(--text);}
.cat-card-body p{font-size:0.9rem;color:var(--text-light);line-height:1.6;}
.cat-card-tag{position:absolute;top:16px;left:16px;padding:4px 14px;border-radius:40px;background:rgba(212,168,73,0.92);color:var(--primary-dark);font-size:0.75rem;font-weight:700;letter-spacing:0.3px;backdrop-filter:blur(4px);}
@media(max-width:1024px){
  .cat-grid{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:520px){
  .cat-grid{grid-template-columns:1fr;}
  .cat-card-img{height:180px;}
}
/* ========== 最新资讯 (CMS) ========== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{background:var(--bg-card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);border:1px solid var(--border);}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);}
.news-card-img{width:100%;height:200px;object-fit:cover;transition:transform 0.4s ease;}
.news-card:hover .news-card-img{transform:scale(1.04);}
.news-card-body{padding:20px 22px 24px;}
.news-card-meta{display:flex;align-items:center;gap:12px;font-size:0.8rem;color:var(--text-light);margin-bottom:10px;}
.news-card-meta .cat-badge{padding:2px 12px;border-radius:30px;background:rgba(212,168,73,0.12);color:var(--accent);font-weight:600;font-size:0.75rem;border:1px solid rgba(212,168,73,0.20);}
.news-card-body h3{font-size:1.05rem;font-weight:700;color:var(--text);margin-bottom:8px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card-body p{font-size:0.88rem;color:var(--text-light);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-empty{grid-column:1/-1;text-align:center;padding:60px 20px;color:var(--text-light);font-size:1.05rem;}
.news-empty i{font-size:2.4rem;color:var(--border);margin-bottom:16px;display:block;}
@media(max-width:1024px){
  .news-grid{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:520px){
  .news-grid{grid-template-columns:1fr;}
  .news-card-img{height:180px;}
}
/* ========== 数据统计 ========== */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat-card{background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.08);border-radius:var(--radius);padding:40px 24px;text-align:center;transition:var(--transition);backdrop-filter:blur(8px);}
.stat-card:hover{background:rgba(255,255,255,0.10);transform:translateY(-4px);border-color:rgba(212,168,73,0.25);}
.stat-card i{font-size:2.2rem;color:var(--accent);margin-bottom:16px;}
.stat-card .num{font-size:2.8rem;font-weight:800;color:var(--text-white);line-height:1.2;letter-spacing:-0.5px;}
.stat-card .label{font-size:0.92rem;color:rgba(255,255,255,0.55);margin-top:8px;}
@media(max-width:768px){
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:16px;}
  .stat-card{padding:28px 16px;}
  .stat-card .num{font-size:2rem;}
}
@media(max-width:520px){
  .stats-grid{grid-template-columns:1fr 1fr;}
}
/* ========== 流程 ========== */
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step;}
.process-step{text-align:center;position:relative;padding:32px 16px;}
.process-step::before{counter-increment:step;content:"0" counter(step);position:absolute;top:0;right:24px;font-size:4rem;font-weight:900;color:rgba(212,168,73,0.08);line-height:1;pointer-events:none;}
.process-step .step-icon{width:68px;height:68px;margin:0 auto 20px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent-hover));display:flex;align-items:center;justify-content:center;color:var(--primary-dark);font-size:1.6rem;box-shadow:0 8px 24px rgba(212,168,73,0.25);}
.process-step h4{font-size:1.1rem;font-weight:700;color:var(--text);margin-bottom:8px;}
.process-step p{font-size:0.9rem;color:var(--text-light);line-height:1.6;max-width:220px;margin:0 auto;}
@media(max-width:768px){
  .process-grid{grid-template-columns:repeat(2,1fr);gap:16px;}
}
@media(max-width:520px){
  .process-grid{grid-template-columns:1fr;}
}
/* ========== FAQ ========== */
.faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
.faq-item{border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;background:var(--bg-card);transition:var(--transition);}
.faq-item.active{border-color:var(--accent);box-shadow:0 4px 16px rgba(212,168,73,0.10);}
.faq-question{display:flex;align-items:center;justify-content:space-between;padding:18px 24px;cursor:pointer;font-weight:600;font-size:1rem;color:var(--text);background:none;border:none;width:100%;text-align:left;gap:12px;transition:var(--transition);}
.faq-question:hover{background:rgba(212,168,73,0.04);}
.faq-question i{color:var(--accent);transition:var(--transition);font-size:1.1rem;}
.faq-item.active .faq-question i{transform:rotate(180deg);}
.faq-answer{padding:0 24px 18px;font-size:0.95rem;color:var(--text-light);line-height:1.7;display:none;}
.faq-item.active .faq-answer{display:block;}
/* ========== CTA ========== */
.cta-section{background:linear-gradient(145deg,var(--primary),var(--primary-light));position:relative;overflow:hidden;padding:80px 0;}
.cta-section::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center center/cover no-repeat;opacity:0.08;pointer-events:none;}
.cta-content{position:relative;z-index:2;text-align:center;max-width:640px;margin:0 auto;}
.cta-content h2{font-size:2.4rem;font-weight:700;color:var(--text-white);margin-bottom:16px;}
.cta-content p{font-size:1.05rem;color:rgba(255,255,255,0.65);margin-bottom:32px;line-height:1.7;}
.cta-content .btn-group{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;}
@media(max-width:768px){
  .cta-content h2{font-size:1.8rem;}
}
/* ========== 页脚 ========== */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,0.70);padding:60px 0 32px;border-top:1px solid rgba(255,255,255,0.05);}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px;}
.footer-brand .nav-logo{margin-bottom:12px;}
.footer-brand p{font-size:0.9rem;line-height:1.7;max-width:320px;}
.footer-col h4{font-size:0.95rem;font-weight:700;color:var(--text-white);margin-bottom:16px;letter-spacing:0.3px;}
.footer-col a{display:block;padding:5px 0;font-size:0.88rem;color:rgba(255,255,255,0.55);transition:var(--transition);}
.footer-col a:hover{color:var(--accent);padding-left:4px;}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;padding-top:28px;border-top:1px solid rgba(255,255,255,0.06);font-size:0.84rem;color:rgba(255,255,255,0.40);gap:12px;}
.footer-bottom a{color:rgba(255,255,255,0.50);}
.footer-bottom a:hover{color:var(--accent);}
@media(max-width:768px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1/-1;}
}
@media(max-width:520px){
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-bottom{flex-direction:column;text-align:center;}
}
/* ========== 滚动样式补丁 ========== */
.section + .section{border-top:1px solid var(--border-light);}
.section-dark + .section-dark{border-top:1px solid rgba(255,255,255,0.04);}
/* 按钮通用补丁 */
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}
/* 图片alt占位友好 */
img[alt]{font-size:0.8rem;color:var(--text-light);}
/* 动画入场 */
.fade-up{opacity:0;transform:translateY(30px);transition:opacity 0.6s ease,transform 0.6s ease;}
.fade-up.visible{opacity:1;transform:translateY(0);}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root {
  --primary: #D32F2F;
  --primary-light: #EF5350;
  --primary-dark: #B71C1C;
  --secondary: #FFC107;
  --secondary-light: #FFD54F;
  --accent: #FF6F00;
  --bg-dark: #0D0D0D;
  --bg-card: #1A1A1A;
  --bg-elevated: #242424;
  --bg-section: #111111;
  --text-white: #F9F9F9;
  --text-light: #E0E0E0;
  --text-muted: #9E9E9E;
  --text-dark: #212121;
  --border-color: #333333;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 20px rgba(211,47,47,0.25);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --container-max: 1200px;
  --header-height: 72px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font-sans);
  background: var(--bg-dark);
  color: var(--text-white);
  line-height: 1.7;
  font-size: 16px;
  min-height: 100vh;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
button { cursor: pointer; font-family: inherit; border: none; background: none; color: inherit; }
input, textarea { font-family: inherit; outline: none; border: none; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; }
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-title {
  font-size: 2.2rem;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--text-white), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 640px;
  margin-bottom: 48px;
}
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 32px; border-radius: 50px; font-weight: 600; font-size: 0.95rem;
  transition: var(--transition); border: 2px solid transparent;
}
.btn-primary {
  background: var(--primary); color: #fff; border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-dark); border-color: var(--primary-dark);
  transform: translateY(-3px); box-shadow: var(--shadow-glow);
}
.btn-outline {
  background: transparent; color: var(--text-white); border-color: var(--border-color);
}
.btn-outline:hover {
  border-color: var(--primary); color: var(--primary);
  transform: translateY(-3px); box-shadow: var(--shadow-glow);
}
.btn-secondary {
  background: var(--secondary); color: var(--text-dark); border-color: var(--secondary);
}
.btn-secondary:hover {
  background: var(--secondary-light); border-color: var(--secondary-light);
  transform: translateY(-3px); box-shadow: 0 0 20px rgba(255,193,7,0.3);
}
.badge {
  display: inline-block; padding: 4px 14px; border-radius: 50px;
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.03em;
  background: var(--primary); color: #fff;
}
.badge-gold { background: var(--secondary); color: var(--text-dark); }
.badge-outline { background: transparent; border: 1px solid var(--border-color); color: var(--text-muted); }
.tag {
  display: inline-block; padding: 6px 18px; border-radius: 50px;
  font-size: 0.8rem; font-weight: 500; background: var(--bg-elevated);
  color: var(--text-light); border: 1px solid var(--border-color);
  transition: var(--transition); cursor: pointer;
}
.tag:hover, .tag.active { border-color: var(--primary); color: var(--primary); background: rgba(211,47,47,0.1); }

/* ===== 导航: 浮动 Dock ===== */
.site-header {
  position: fixed; top: 16px; left: 0; right: 0; z-index: 1000;
  display: flex; justify-content: center; pointer-events: none;
}
.nav-dock {
  display: flex; align-items: center; gap: 24px;
  background: rgba(13,13,13,0.92); backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 60px; padding: 8px 28px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.6);
  pointer-events: auto; max-width: 720px; width: auto;
  transition: var(--transition);
}
.nav-dock:hover { border-color: rgba(211,47,47,0.3); }
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.15rem; font-weight: 700; color: var(--text-white);
  letter-spacing: -0.01em; white-space: nowrap;
}
.nav-logo i { color: var(--primary); font-size: 1.3rem; }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  padding: 8px 20px; border-radius: 40px; font-size: 0.9rem;
  font-weight: 500; color: var(--text-muted); transition: var(--transition);
  white-space: nowrap;
}
.nav-links a:hover { color: var(--text-white); background: rgba(255,255,255,0.06); }
.nav-links a.active {
  color: #fff; background: var(--primary);
  box-shadow: 0 4px 16px rgba(211,47,47,0.35);
}
.nav-toggle { display: none; font-size: 1.4rem; color: var(--text-white); padding: 4px 8px; }

/* ===== Mobile Nav ===== */
@media (max-width: 768px) {
  .site-header { top: 12px; }
  .nav-dock { padding: 6px 16px; gap: 12px; max-width: 94vw; border-radius: 40px; }
  .nav-logo { font-size: 1rem; }
  .nav-logo i { font-size: 1.1rem; }
  .nav-links { display: none; position: absolute; top: calc(100% + 12px); left: 0; right: 0;
    flex-direction: column; background: rgba(13,13,13,0.96); backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px); border: 1px solid rgba(255,255,255,0.08);
    border-radius: 20px; padding: 12px; gap: 4px; box-shadow: var(--shadow-lg); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 20px; width: 100%; text-align: center; font-size: 1rem; }
  .nav-toggle { display: block; }
}

@media (max-width: 520px) {
  .nav-dock { gap: 8px; padding: 6px 12px; }
  .nav-logo { font-size: 0.9rem; }
  .nav-logo i { font-size: 0.95rem; }
  .nav-links a { padding: 10px 14px; font-size: 0.85rem; }
}

/* ===== Hero / Banner ===== */
.hero-category {
  position: relative; min-height: 520px; display: flex; align-items: center;
  justify-content: center; text-align: center; overflow: hidden;
  padding: 140px 24px 80px;
  background: linear-gradient(135deg, #0D0D0D 0%, #1A0A0A 50%, #0D0D0D 100%);
}
.hero-category::before {
  content: ''; position: absolute; inset: 0;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  opacity: 0.35; z-index: 0; filter: saturate(1.1) brightness(0.55);
}
.hero-category::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(13,13,13,0.92) 0%, rgba(13,13,13,0.4) 60%, rgba(13,13,13,0.7) 100%);
  z-index: 1;
}
.hero-content { position: relative; z-index: 2; max-width: 800px; }
.hero-content .badge { margin-bottom: 20px; font-size: 0.85rem; padding: 6px 22px; }
.hero-content h1 {
  font-size: 3.4rem; font-weight: 800; letter-spacing: -0.03em;
  margin-bottom: 20px; line-height: 1.15;
  background: linear-gradient(135deg, #FFFFFF 40%, var(--secondary) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-content p {
  font-size: 1.15rem; color: var(--text-light); max-width: 600px;
  margin: 0 auto 32px; line-height: 1.7;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

@media (max-width: 768px) {
  .hero-category { min-height: 400px; padding: 120px 20px 60px; }
  .hero-content h1 { font-size: 2.2rem; }
  .hero-content p { font-size: 1rem; }
}
@media (max-width: 520px) {
  .hero-category { min-height: 340px; padding: 100px 16px 48px; }
  .hero-content h1 { font-size: 1.7rem; }
  .hero-content p { font-size: 0.9rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-actions .btn { width: 100%; max-width: 260px; justify-content: center; }
}

/* ===== 分类介绍 ===== */
.intro-section {
  background: var(--bg-section); border-bottom: 1px solid rgba(255,255,255,0.04);
}
.intro-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
}
.intro-text h2 { font-size: 2rem; margin-bottom: 20px; }
.intro-text p { color: var(--text-light); margin-bottom: 16px; font-size: 1rem; line-height: 1.8; }
.intro-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.stat-card {
  background: var(--bg-card); border-radius: var(--radius-md); padding: 24px 16px;
  text-align: center; border: 1px solid var(--border-color); transition: var(--transition);
}
.stat-card:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: var(--shadow-glow); }
.stat-number { font-size: 2.2rem; font-weight: 800; color: var(--primary); line-height: 1; }
.stat-number span { font-size: 1rem; color: var(--text-muted); font-weight: 400; margin-left: 2px; }
.stat-label { font-size: 0.85rem; color: var(--text-muted); margin-top: 8px; }

@media (max-width: 768px) {
  .intro-grid { grid-template-columns: 1fr; gap: 32px; }
  .intro-stats { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .stat-card { padding: 16px 12px; }
  .stat-number { font-size: 1.6rem; }
}
@media (max-width: 520px) {
  .intro-stats { grid-template-columns: 1fr 1fr; gap: 10px; }
}

/* ===== 热门赛事卡片 ===== */
.race-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.race-card {
  background: var(--bg-card); border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--border-color); transition: var(--transition);
  display: flex; flex-direction: column;
}
.race-card:hover { transform: translateY(-6px); border-color: var(--primary); box-shadow: var(--shadow-lg); }
.race-card-image {
  position: relative; height: 200px; overflow: hidden;
  background: var(--bg-elevated);
}
.race-card-image img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.race-card:hover .race-card-image img { transform: scale(1.05); }
.race-card-image .badge {
  position: absolute; top: 14px; left: 14px; z-index: 2;
}
.race-card-image .race-date {
  position: absolute; bottom: 14px; right: 14px; z-index: 2;
  background: rgba(0,0,0,0.7); backdrop-filter: blur(6px);
  padding: 6px 14px; border-radius: 30px; font-size: 0.75rem; color: #fff;
  display: flex; align-items: center; gap: 6px;
}
.race-card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.race-card-body h3 { font-size: 1.15rem; margin-bottom: 10px; font-weight: 700; }
.race-card-body p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; flex: 1; margin-bottom: 16px; }
.race-card-footer { display: flex; justify-content: space-between; align-items: center; padding-top: 12px; border-top: 1px solid var(--border-color); }
.race-card-footer .tag { font-size: 0.75rem; padding: 4px 14px; }
.race-card-footer a { color: var(--primary); font-size: 0.85rem; font-weight: 600; display: flex; align-items: center; gap: 6px; }
.race-card-footer a:hover { color: var(--secondary); }

@media (max-width: 1024px) {
  .race-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .race-grid { grid-template-columns: 1fr; gap: 20px; }
  .race-card-image { height: 180px; }
}

/* ===== 赛事动态时间线 ===== */
.timeline-section { background: var(--bg-section); }
.timeline {
  position: relative; max-width: 800px; margin: 0 auto; padding-left: 40px;
}
.timeline::before {
  content: ''; position: absolute; left: 14px; top: 0; bottom: 0;
  width: 2px; background: linear-gradient(to bottom, var(--primary), var(--secondary), transparent);
}
.timeline-item { position: relative; margin-bottom: 36px; padding-left: 24px; }
.timeline-item::before {
  content: ''; position: absolute; left: -30px; top: 6px;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--primary); border: 3px solid var(--bg-dark);
  box-shadow: 0 0 0 2px var(--primary);
}
.timeline-item .time { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 4px; display: flex; align-items: center; gap: 8px; }
.timeline-item .time i { color: var(--secondary); }
.timeline-item h4 { font-size: 1.05rem; margin-bottom: 6px; }
.timeline-item p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }

@media (max-width: 600px) {
  .timeline { padding-left: 28px; }
  .timeline-item { padding-left: 16px; }
  .timeline-item::before { left: -22px; width: 12px; height: 12px; }
}

/* ===== 赛事分类标签 ===== */
.tags-cloud {
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; max-width: 700px; margin: 0 auto;
}
.tags-cloud .tag { padding: 10px 26px; font-size: 0.9rem; }
.tags-cloud .tag i { margin-right: 8px; color: var(--primary); }

/* ===== FAQ ===== */
.faq-grid { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--bg-card); border-radius: var(--radius-md); overflow: hidden;
  border: 1px solid var(--border-color); transition: var(--transition);
}
.faq-item:hover { border-color: rgba(211,47,47,0.2); }
.faq-question {
  padding: 20px 28px; display: flex; justify-content: space-between; align-items: center;
  font-weight: 600; font-size: 1rem; cursor: pointer; background: none; width: 100%; text-align: left;
  color: var(--text-light); transition: var(--transition);
}
.faq-question:hover { color: var(--text-white); }
.faq-question i { transition: var(--transition); color: var(--text-muted); font-size: 1.1rem; }
.faq-item.open .faq-question i { transform: rotate(180deg); color: var(--primary); }
.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 28px; color: var(--text-muted); font-size: 0.9rem; line-height: 1.7;
}
.faq-item.open .faq-answer { max-height: 300px; padding: 0 28px 20px; }

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, var(--primary-dark), var(--bg-dark) 70%);
  text-align: center; padding: 80px 24px; position: relative; overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute; inset: 0;
  background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  opacity: 0.12; z-index: 0; filter: brightness(0.4);
}
.cta-content { position: relative; z-index: 1; max-width: 620px; margin: 0 auto; }
.cta-content h2 { font-size: 2.2rem; margin-bottom: 16px; }
.cta-content p { color: var(--text-light); margin-bottom: 32px; font-size: 1.05rem; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

@media (max-width: 600px) {
  .cta-section { padding: 56px 20px; }
  .cta-content h2 { font-size: 1.6rem; }
  .cta-actions { flex-direction: column; align-items: center; }
  .cta-actions .btn { width: 100%; max-width: 260px; justify-content: center; }
}

/* ===== 页脚 ===== */
.site-footer {
  background: #080808; border-top: 1px solid rgba(255,255,255,0.05);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .nav-logo { font-size: 1.2rem; margin-bottom: 16px; display: inline-flex; }
.footer-brand p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; max-width: 300px; }
.footer-col h4 { font-size: 0.95rem; font-weight: 700; color: var(--text-white); margin-bottom: 18px; letter-spacing: 0.02em; }
.footer-col a {
  display: block; color: var(--text-muted); font-size: 0.88rem; padding: 5px 0;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--primary); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.05); padding: 20px 0;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.82rem; color: var(--text-muted); flex-wrap: wrap; gap: 12px;
}

@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ===== 响应式通用 ===== */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .section-title { font-size: 1.7rem; }
  .section-subtitle { font-size: 0.95rem; margin-bottom: 32px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; gap: 24px; }
}
@media (max-width: 520px) {
  .section { padding: 40px 0; }
  .section-title { font-size: 1.4rem; }
  .container { padding: 0 16px; }
}

/* ===== 动画 ===== */
@keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
.fade-up { animation: fadeUp 0.6s ease forwards; }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }

/* ===== 高亮/选中 ===== */
::selection { background: var(--primary); color: #fff; }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

/* roulang page: article */
/* ===== 设计变量 ===== */
:root {
  --primary: #1a2a4a;
  --primary-light: #2a4a7a;
  --primary-dark: #0f1a30;
  --accent: #d4a843;
  --accent-hover: #c49a35;
  --accent-red: #e85d3a;
  --bg: #f5f6fa;
  --bg-white: #ffffff;
  --bg-dark: #121a2c;
  --text: #1a1a2e;
  --text-light: #5a5a7a;
  --text-lighter: #8a8aaa;
  --text-white: #f0f2f8;
  --border: #e0e0e8;
  --border-light: #eef0f5;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-hover: 0 8px 32px rgba(0,0,0,0.12);
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  --max-width: 1200px;
  --content-width: 780px;
  --header-height: 72px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, textarea { font-family: inherit; font-size: 1rem; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--primary); }
h1 { font-size: 2.2rem; }
h2 { font-size: 1.8rem; }
h3 { font-size: 1.4rem; }
h4 { font-size: 1.15rem; }
p { margin-bottom: 1rem; color: var(--text-light); }

/* ===== 容器 ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.container-narrow {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 导航 Dock ===== */
.site-header {
  position: fixed;
  top: 16px;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  justify-content: center;
  pointer-events: none;
}
.nav-dock {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(26, 42, 74, 0.92);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  border: 1px solid rgba(212, 168, 67, 0.25);
  border-radius: 60px;
  padding: 10px 28px;
  max-width: 820px;
  width: 100%;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.25);
  pointer-events: auto;
  transition: var(--transition);
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-white);
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.nav-logo i { color: var(--accent); font-size: 1.35rem; }
.nav-logo:hover { color: var(--accent); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-links a {
  padding: 8px 18px;
  border-radius: 40px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-white);
  transition: var(--transition);
  white-space: nowrap;
  letter-spacing: 0.3px;
}
.nav-links a:hover {
  background: rgba(212, 168, 67, 0.2);
  color: var(--accent);
}
.nav-links a.active {
  background: var(--accent);
  color: var(--primary-dark);
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(212, 168, 67, 0.35);
}
.nav-toggle {
  display: none;
  color: var(--text-white);
  font-size: 1.4rem;
  padding: 6px 12px;
  border-radius: 30px;
  background: rgba(255,255,255,0.08);
  transition: var(--transition);
}
.nav-toggle:hover { background: rgba(212, 168, 67, 0.25); color: var(--accent); }

/* ===== 文章头部 ===== */
.article-hero {
  position: relative;
  padding: 120px 0 70px;
  background: var(--primary-dark);
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  background-blend-mode: overlay;
  margin-top: 0;
}
.article-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15, 26, 48, 0.88) 0%, rgba(26, 42, 74, 0.72) 60%, rgba(26, 42, 74, 0.50) 100%);
  z-index: 1;
}
.article-hero .container-narrow { position: relative; z-index: 2; }
.article-category-badge {
  display: inline-block;
  background: var(--accent);
  color: var(--primary-dark);
  padding: 5px 18px;
  border-radius: 40px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 18px;
  box-shadow: 0 2px 10px rgba(212, 168, 67, 0.3);
}
.article-hero h1 {
  color: var(--text-white);
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 20px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.article-hero .article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  color: rgba(255,255,255,0.75);
  font-size: 0.9rem;
}
.article-hero .article-meta i { margin-right: 6px; color: var(--accent); }
.article-hero .article-meta span { display: flex; align-items: center; }

/* ===== 文章正文 ===== */
.article-main {
  flex: 1;
  padding: 50px 0 30px;
}
.article-body {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 48px 52px;
  box-shadow: var(--shadow);
  margin-bottom: 40px;
}
.article-body h2 {
  font-size: 1.7rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--accent);
  color: var(--primary);
}
.article-body h3 {
  font-size: 1.35rem;
  margin-top: 1.6rem;
  margin-bottom: 0.8rem;
  color: var(--primary-light);
}
.article-body p {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text);
  margin-bottom: 1.2rem;
}
.article-body ul, .article-body ol {
  margin: 1rem 0 1.4rem 1.6rem;
  color: var(--text);
}
.article-body ul li { list-style: disc; margin-bottom: 0.4rem; }
.article-body ol li { list-style: decimal; margin-bottom: 0.4rem; }
.article-body blockquote {
  border-left: 4px solid var(--accent);
  background: var(--bg);
  padding: 18px 24px;
  margin: 1.4rem 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-light);
  font-style: italic;
}
.article-body img {
  border-radius: var(--radius);
  margin: 1.6rem auto;
  box-shadow: var(--shadow-sm);
}
.article-body a { color: var(--accent-red); font-weight: 500; }
.article-body a:hover { text-decoration: underline; }
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.4rem 0;
  font-size: 0.95rem;
}
.article-body th, .article-body td {
  border: 1px solid var(--border);
  padding: 12px 16px;
  text-align: left;
}
.article-body th { background: var(--primary); color: var(--text-white); font-weight: 600; }
.article-body tr:nth-child(even) { background: var(--bg); }

/* ===== 文章底部信息 ===== */
.article-footer-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 0 30px;
  border-top: 1px solid var(--border-light);
  margin-top: 10px;
}
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.article-tags span { color: var(--text-lighter); font-size: 0.9rem; margin-right: 6px; }
.article-tags .tag {
  display: inline-block;
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 4px 16px;
  border-radius: 30px;
  font-size: 0.82rem;
  color: var(--text-light);
  transition: var(--transition);
}
.article-tags .tag:hover { background: var(--accent); color: var(--primary-dark); border-color: var(--accent); }
.article-share {
  display: flex;
  align-items: center;
  gap: 10px;
}
.article-share span { color: var(--text-lighter); font-size: 0.9rem; }
.article-share a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-light);
  font-size: 1rem;
  transition: var(--transition);
}
.article-share a:hover { background: var(--accent); color: var(--primary-dark); border-color: var(--accent); transform: translateY(-2px); }

/* ===== 内容未找到 ===== */
.not-found-box {
  text-align: center;
  padding: 80px 30px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.not-found-box i { font-size: 3.6rem; color: var(--text-lighter); margin-bottom: 24px; }
.not-found-box h2 { color: var(--text-light); margin-bottom: 16px; }
.not-found-box p { color: var(--text-lighter); margin-bottom: 28px; }
.not-found-box .btn-back { display: inline-block; }

/* ===== 相关文章 ===== */
.related-section {
  padding: 50px 0 20px;
}
.related-section h2 {
  font-size: 1.7rem;
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.related-section h2 i { color: var(--accent); }
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.related-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.related-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.related-card .card-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 0;
}
.related-card .card-body {
  padding: 18px 20px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.related-card .card-category {
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
  text-transform: uppercase;
}
.related-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-card h3 a { color: var(--text); }
.related-card h3 a:hover { color: var(--accent); }
.related-card .card-excerpt {
  font-size: 0.88rem;
  color: var(--text-light);
  line-height: 1.6;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}
.related-card .card-meta {
  font-size: 0.8rem;
  color: var(--text-lighter);
  display: flex;
  align-items: center;
  gap: 14px;
  border-top: 1px solid var(--border-light);
  padding-top: 12px;
}
.related-card .card-meta i { margin-right: 4px; font-size: 0.75rem; }

/* ===== CTA 区域 ===== */
.cta-section {
  padding: 60px 0;
  margin: 20px 0 0;
}
.cta-box {
  background: var(--primary-dark);
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  background-blend-mode: overlay;
  border-radius: var(--radius-xl);
  padding: 56px 50px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,26,48,0.85) 0%, rgba(26,42,74,0.70) 100%);
  z-index: 1;
  border-radius: var(--radius-xl);
}
.cta-box * { position: relative; z-index: 2; }
.cta-box h2 {
  color: var(--text-white);
  font-size: 1.9rem;
  margin-bottom: 14px;
}
.cta-box p {
  color: rgba(255,255,255,0.75);
  font-size: 1.1rem;
  max-width: 560px;
  margin: 0 auto 28px;
}
.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 1.05rem;
  padding: 14px 38px;
  border-radius: 50px;
  transition: var(--transition);
  box-shadow: 0 6px 24px rgba(212, 168, 67, 0.35);
}
.btn-cta:hover {
  background: var(--accent-hover);
  color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(212, 168, 67, 0.45);
}
.btn-cta i { font-size: 1.1rem; }

/* ===== 按钮通用 ===== */
.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: var(--text-white);
  font-weight: 600;
  padding: 12px 30px;
  border-radius: 50px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.btn-back:hover { background: var(--primary-light); color: var(--text-white); transform: translateY(-2px); box-shadow: var(--shadow); }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.7);
  padding: 56px 0 0;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .nav-logo { font-size: 1.3rem; margin-bottom: 14px; display: inline-flex; }
.footer-brand p { color: rgba(255,255,255,0.6); font-size: 0.9rem; line-height: 1.7; max-width: 320px; }
.footer-col h4 {
  color: var(--text-white);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.footer-col a {
  display: block;
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  padding: 4px 0;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 22px 0;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.45);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .article-hero h1 { font-size: 2.1rem; }
}

@media (max-width: 768px) {
  .site-header { top: 12px; }
  .nav-dock { padding: 8px 18px; border-radius: 40px; max-width: 94%; }
  .nav-links { gap: 4px; }
  .nav-links a { padding: 6px 14px; font-size: 0.82rem; }
  .nav-logo { font-size: 1.05rem; gap: 8px; }
  .nav-logo i { font-size: 1.1rem; }
  .nav-toggle { display: block; }
  .nav-links { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: rgba(26,42,74,0.96); backdrop-filter: blur(14px); border-radius: var(--radius); padding: 14px; margin-top: 10px; border: 1px solid rgba(212,168,67,0.2); }
  .nav-links.open { display: flex; }
  .nav-links a { width: 100%; text-align: center; padding: 10px 14px; }
  .article-hero { padding: 100px 0 50px; }
  .article-hero h1 { font-size: 1.7rem; }
  .article-body { padding: 28px 24px; border-radius: var(--radius); }
  .article-body p { font-size: 1rem; }
  .related-grid { grid-template-columns: 1fr; }
  .cta-box { padding: 36px 24px; }
  .cta-box h2 { font-size: 1.4rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .article-footer-bar { flex-direction: column; align-items: flex-start; }
  .nav-dock { position: relative; }
}

@media (max-width: 520px) {
  .site-header { top: 8px; }
  .nav-dock { padding: 6px 14px; max-width: 96%; }
  .nav-logo { font-size: 0.95rem; }
  .nav-logo i { font-size: 1rem; }
  .article-hero { padding: 80px 0 40px; }
  .article-hero h1 { font-size: 1.4rem; }
  .article-body { padding: 20px 16px; }
  .article-body h2 { font-size: 1.3rem; }
  .article-body h3 { font-size: 1.1rem; }
  .container { padding: 0 14px; }
  .container-narrow { padding: 0 14px; }
  .related-card .card-img { height: 150px; }
  .cta-box { padding: 28px 18px; }
  .cta-box h2 { font-size: 1.2rem; }
  .btn-cta { padding: 12px 26px; font-size: 0.95rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
}