/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --primary:#e63946;
  --primary-dark:#c62f3a;
  --primary-light:#ff6b75;
  --secondary:#f0a500;
  --accent:#2ec4b6;
  --dark:#0b1524;
  --dark-2:#12233b;
  --dark-3:#1a3050;
  --bg:#f5f7fb;
  --white:#ffffff;
  --text:#1a2333;
  --text-light:#5d6b7e;
  --text-lighter:#8a97a8;
  --border:#e2e8f0;
  --radius-sm:8px;
  --radius:14px;
  --radius-lg:22px;
  --shadow-sm:0 2px 10px rgba(0,0,0,.05);
  --shadow:0 8px 32px rgba(0,0,0,.08);
  --shadow-lg:0 16px 50px rgba(0,0,0,.12);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI","Helvetica Neue",Arial,sans-serif;
  --container:1200px;
  --spacing:100px;
}
/* ============ 基础 Reset ============ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);line-height:1.7;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit;transition:all .3s ease}
img{max-width:100%;display:block}
button,input,select,textarea{font-family:inherit;font-size:inherit;border:none;outline:none}
ul,ol{list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
/* ============ 导航 Header ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(11,21,36,.92);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:background .3s,box-shadow .3s;
}
.site-header.scrolled{background:rgba(11,21,36,.98);box-shadow:0 4px 30px rgba(0,0,0,.25)}
.nav-wrap{display:flex;align-items:center;height:72px;gap:24px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-icon{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--secondary));display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;font-weight:800;box-shadow:0 4px 14px rgba(230,57,70,.35)}
.logo-text{font-size:18px;font-weight:700;color:#fff;letter-spacing:.5px;white-space:nowrap}
.logo-text span{color:var(--secondary)}
.nav-menu{display:flex;align-items:center;gap:4px;flex:1;justify-content:center}
.nav-menu a{
  color:rgba(255,255,255,.75);font-size:15px;font-weight:500;
  padding:8px 18px;border-radius:8px;position:relative;transition:all .3s;
}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav-menu a.active{color:#fff;font-weight:600}
.nav-menu a.active::after{content:'';position:absolute;left:18px;right:18px;bottom:2px;height:3px;border-radius:3px;background:var(--primary)}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{
  display:flex;align-items:center;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.12);border-radius:8px;padding:0 12px;height:38px;gap:8px;transition:border .3s;
}
.search-box i{color:rgba(255,255,255,.5);font-size:13px}
.search-box input{background:transparent;color:#fff;font-size:14px;width:90px;transition:width .3s}
.search-box input:focus{width:150px}
.search-box input::placeholder{color:rgba(255,255,255,.4)}
.btn-user{
  height:38px;padding:0 18px;border-radius:8px;display:flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.1);color:#fff;font-size:14px;font-weight:500;cursor:pointer;transition:all .3s;
}
.btn-user:hover{background:rgba(255,255,255,.2)}
.btn-cta{
  height:38px;padding:0 22px;border-radius:8px;display:flex;align-items:center;gap:7px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;font-size:14px;font-weight:600;
  cursor:pointer;box-shadow:0 4px 16px rgba(230,57,70,.35);transition:all .3s;
}
.btn-cta:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(230,57,70,.5);color:#fff}
/* 移动端汉堡 */
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;background:none}
.nav-toggle span{display:block;width:22px;height:2px;background:#fff;border-radius:2px;transition:all .3s}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
/* ============ Hero ============ */
.hero{
  min-height:92vh;display:flex;align-items:center;position:relative;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  isolation:isolate;padding:120px 0 80px;
}
.hero::before{
  content:'';position:absolute;inset:0;z-index:-1;
  background:linear-gradient(120deg,rgba(11,21,36,.9) 0%,rgba(11,21,36,.7) 50%,rgba(11,21,36,.35) 100%);
}
.hero::after{
  content:'';position:absolute;bottom:0;left:0;right:0;height:120px;z-index:-1;
  background:linear-gradient(to top,var(--bg),transparent);
}
.hero-content{max-width:680px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.2);color:#fff;padding:6px 18px;border-radius:50px;
  font-size:13px;font-weight:500;margin-bottom:22px;backdrop-filter:blur(6px);
}
.hero-badge i{color:var(--secondary)}
.hero h1{
  font-size:56px;font-weight:800;color:#fff;line-height:1.2;margin-bottom:18px;
  text-shadow:0 4px 30px rgba(0,0,0,.4);letter-spacing:1px;
}
.hero h1 em{font-style:normal;color:var(--secondary)}
.hero-sub{font-size:18px;color:rgba(255,255,255,.85);line-height:1.8;margin-bottom:32px;max-width:560px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-meta{
  display:flex;gap:28px;margin-top:48px;flex-wrap:wrap;
}
.hero-meta .hm-item{display:flex;align-items:center;gap:10px;color:rgba(255,255,255,.7);font-size:14px}
.hero-meta .hm-item i{color:var(--secondary);font-size:18px}
/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 32px;border-radius:10px;font-size:15px;font-weight:600;
  cursor:pointer;transition:all .3s ease;border:2px solid transparent;line-height:1;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;box-shadow:0 6px 20px rgba(230,57,70,.4);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 12px 32px rgba(230,57,70,.5);color:#fff}
.btn-outline{
  background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.3);
  backdrop-filter:blur(4px);
}
.btn-outline:hover{background:rgba(255,255,255,.2);border-color:rgba(255,255,255,.6);color:#fff;transform:translateY(-2px)}
.btn-light{
  background:#fff;color:var(--dark);box-shadow:0 6px 20px rgba(0,0,0,.12);
}
.btn-light:hover{transform:translateY(-3px);box-shadow:0 12px 32px rgba(0,0,0,.18);color:var(--primary)}
.btn-ghost{
  background:transparent;color:var(--text-light);border-color:var(--border);
}
.btn-ghost:hover{color:var(--primary);border-color:var(--primary);background:rgba(230,57,70,.04)}
/* ============ 板块通用 ============ */
.section{padding:var(--spacing) 0;position:relative}
.section-alt{background:var(--white)}
.section-head{text-align:center;margin-bottom:56px;max-width:720px;margin-left:auto;margin-right:auto}
.section-head .section-tag{
  display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-size:14px;
  font-weight:600;letter-spacing:1px;text-transform:uppercase;margin-bottom:12px;
}
.section-head .section-tag::before,.section-head .section-tag::after{content:'';width:20px;height:1px;background:var(--primary)}
.section-head h2{font-size:38px;font-weight:800;color:var(--text);line-height:1.3;margin-bottom:14px}
.section-head h2 span{color:var(--primary)}
.section-head p{color:var(--text-light);font-size:16px;line-height:1.8}
/* ============ 特色板块 ============ */
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.feature-card{
  background:var(--white);border-radius:var(--radius);padding:36px 28px;
  border:1px solid var(--border);transition:all .35s ease;position:relative;overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.feature-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));opacity:0;transition:opacity .3s;
}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.feature-card:hover::before{opacity:1}
.feature-icon{
  width:62px;height:62px;border-radius:16px;display:flex;align-items:center;justify-content:center;
  font-size:24px;margin-bottom:22px;transition:all .3s;
}
.feature-card:nth-child(1) .feature-icon{background:rgba(230,57,70,.1);color:var(--primary)}
.feature-card:nth-child(2) .feature-icon{background:rgba(240,165,0,.1);color:var(--secondary)}
.feature-card:nth-child(3) .feature-icon{background:rgba(46,196,182,.1);color:var(--accent)}
.feature-card:nth-child(4) .feature-icon{background:rgba(59,90,180,.1);color:#3b5ab4}
.feature-card h3{font-size:18px;font-weight:700;margin-bottom:10px;color:var(--text)}
.feature-card p{font-size:14px;color:var(--text-light);line-height:1.7}
/* ============ 分类入口 ============ */
.category-section{background:var(--dark);position:relative;overflow:hidden}
.category-section::before{
  content:'';position:absolute;top:-200px;right:-200px;width:600px;height:600px;
  border-radius:50%;background:radial-gradient(circle,rgba(230,57,70,.15),transparent 70%);
}
.category-section .section-head h2{color:#fff}
.category-section .section-head p{color:rgba(255,255,255,.6)}
.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.category-card{
  border-radius:var(--radius-lg);overflow:hidden;position:relative;display:block;
  box-shadow:0 8px 30px rgba(0,0,0,.3);transition:all .35s ease;background:var(--dark-2);
}
.category-card:hover{transform:translateY(-8px);box-shadow:0 18px 50px rgba(0,0,0,.4)}
.category-card .card-img{position:relative;height:220px;overflow:hidden}
.category-card .card-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.category-card:hover .card-img img{transform:scale(1.08)}
.category-card .card-img::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,var(--dark-2),transparent 70%)}
.card-body{position:absolute;bottom:0;left:0;right:0;padding:24px;z-index:2}
.card-body .cat-badge{
  display:inline-block;background:rgba(230,57,70,.9);color:#fff;padding:3px 14px;
  border-radius:20px;font-size:12px;font-weight:600;margin-bottom:10px;
}
.card-body h3{color:#fff;font-size:20px;font-weight:700;margin-bottom:6px}
.card-body p{color:rgba(255,255,255,.7);font-size:13px;line-height:1.6}
.card-body .card-link{color:var(--secondary);font-size:13px;font-weight:600;display:inline-flex;align-items:center;gap:6px;margin-top:10px}
/* ============ 资讯列表 ============ */
.news-section .news-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.news-card{
  display:flex;background:var(--white);border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:all .35s ease;
}
.news-card:hover{box-shadow:var(--shadow);transform:translateY(-4px);border-color:rgba(230,57,70,.2)}
.news-thumb{width:200px;flex-shrink:0;overflow:hidden;position:relative}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-info{padding:22px 24px;display:flex;flex-direction:column;flex:1}
.news-info .badge{
  display:inline-flex;align-items:center;width:fit-content;background:rgba(230,57,70,.08);
  color:var(--primary);font-size:12px;font-weight:600;padding:2px 12px;border-radius:20px;margin-bottom:10px;
}
.news-info h3{font-size:17px;font-weight:700;line-height:1.5;margin-bottom:8px;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-info h3:hover{color:var(--primary)}
.news-info p{font-size:13px;color:var(--text-light);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.news-meta{display:flex;align-items:center;gap:16px;margin-top:16px;font-size:12px;color:var(--text-lighter)}
.news-meta i{margin-right:3px}
.empty-tip{
  grid-column:1/-1;text-align:center;padding:60px 20px;color:var(--text-lighter);
  font-size:15px;background:var(--white);border-radius:var(--radius);border:1px dashed var(--border);
}
/* ============ 数据统计 ============ */
.stats-section{
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;position:relative;isolation:isolate;
}
.stats-section::before{content:'';position:absolute;inset:0;background:rgba(11,21,36,.85);z-index:-1}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.stat-item{text-align:center;padding:40px 20px;border-radius:var(--radius);transition:all .3s}
.stat-item:hover{background:rgba(255,255,255,.06);transform:translateY(-4px)}
.stat-item .stat-num{
  font-size:52px;font-weight:800;color:#fff;line-height:1;margin-bottom:10px;
  background:linear-gradient(135deg,var(--secondary),var(--primary));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
.stat-item .stat-label{font-size:14px;color:rgba(255,255,255,.7);letter-spacing:1px}
/* ============ 流程板块 ============ */
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;position:relative}
.process-grid::before{
  content:'';position:absolute;top:42px;left:10%;right:10%;height:2px;
  background:linear-gradient(90deg,var(--border),var(--primary),var(--border));opacity:.5;
}
.process-step{text-align:center;position:relative;z-index:1}
.process-step .step-num{
  width:84px;height:84px;margin:0 auto 24px;border-radius:50%;
  background:var(--white);border:2px solid var(--primary);display:flex;align-items:center;
  justify-content:center;font-size:24px;font-weight:800;color:var(--primary);
  box-shadow:0 8px 24px rgba(230,57,70,.15);transition:all .3s;
}
.process-step:hover .step-num{background:var(--primary);color:#fff;transform:scale(1.08)}
.process-step h3{font-size:17px;font-weight:700;margin-bottom:10px;color:var(--text)}
.process-step p{font-size:14px;color:var(--text-light);line-height:1.7;padding:0 14px}
/* ============ FAQ ============ */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius);
  padding:0;margin-bottom:14px;overflow:hidden;transition:all .3s;
}
.faq-item:hover{border-color:rgba(230,57,70,.3)}
.faq-item.active{border-color:var(--primary);box-shadow:var(--shadow)}
.faq-question{
  display:flex;align-items:center;justify-content:space-between;cursor:pointer;
  padding:22px 26px;font-size:16px;font-weight:600;color:var(--text);
}
.faq-question i{color:var(--primary);font-size:14px;transition:transform .3s}
.faq-item.active .faq-question i{transform:rotate(45deg)}
.faq-answer{
  max-height:0;overflow:hidden;transition:max-height .4s ease;
  padding:0 26px;color:var(--text-light);font-size:14px;line-height:1.8;
}
.faq-item.active .faq-answer{max-height:300px;padding-bottom:22px}
/* ============ CTA ============ */
.cta-section{
  background:url('/assets/images/backpic/back-3.png') center/cover fixed no-repeat;
  position:relative;isolation:isolate;padding:90px 0;text-align:center;
}
.cta-section::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(230,57,70,.85),rgba(11,21,36,.92));z-index:-1}
.cta-content h2{font-size:38px;font-weight:800;color:#fff;margin-bottom:14px}
.cta-content p{font-size:16px;color:rgba(255,255,255,.8);margin-bottom:32px;max-width:600px;margin-left:auto;margin-right:auto}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
/* ============ 页脚 ============ */
.site-footer{background:var(--dark);padding:60px 0 0;position:relative}
.footer-main{display:flex;gap:48px;flex-wrap:wrap;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand{flex:1.4;min-width:260px}
.footer-brand .logo{font-size:20px;margin-bottom:16px}
.footer-brand p{color:rgba(255,255,255,.6);font-size:14px;line-height:1.8;margin-bottom:20px;max-width:340px}
.footer-social{display:flex;gap:12px}
.footer-social a{
  width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.7);font-size:15px;transition:all .3s;
}
.footer-social a:hover{background:var(--primary);color:#fff;transform:translateY(-3px)}
.footer-col{flex:1;min-width:140px}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:20px;position:relative;padding-bottom:12px}
.footer-col h4::after{content:'';position:absolute;left:0;bottom:0;width:24px;height:3px;border-radius:3px;background:var(--primary)}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{color:rgba(255,255,255,.55);font-size:14px;transition:all .3s}
.footer-col ul li a:hover{color:var(--secondary);padding-left:6px}
.footer-bottom{
  padding:24px 0;display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:12px;color:rgba(255,255,255,.4);font-size:13px;
}
.footer-bottom a{color:rgba(255,255,255,.5)}
.footer-bottom a:hover{color:var(--secondary)}
/* ============ 响应式 ============ */
@media(max-width:1024px){
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .category-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid::before{display:none}
  .news-grid{grid-template-columns:1fr}
  .news-thumb{width:160px}
  .hero h1{font-size:44px}
  .spacing-var{--spacing:80px}
}
@media(max-width:768px){
  .nav-toggle{display:flex}
  .nav-menu{
    position:fixed;top:72px;left:0;right:0;flex-direction:column;
    background:rgba(11,21,36,.98);padding:20px 24px;gap:4px;
    transform:translateY(-120%);opacity:0;visibility:hidden;transition:all .4s ease;
    border-bottom:1px solid rgba(255,255,255,.1);
  }
  .nav-menu.open{transform:translateY(0);opacity:1;visibility:visible}
  .nav-menu a{padding:14px 20px;text-align:left;width:100%;border-radius:8px}
  .nav-menu a.active::after{display:none}
  .nav-right .search-box{display:none}
  .section-head h2{font-size:30px}
  .hero h1{font-size:34px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{padding:12px 22px;font-size:14px}
  .features-grid{grid-template-columns:1fr}
  .category-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:2fr 2fr}
  .stat-item .stat-num{font-size:40px}
  .process-grid{grid-template-columns:1fr}
  .process-step{margin-bottom:30px}
  .news-grid{grid-template-columns:1fr}
  .news-card{flex-direction:column}
  .news-thumb{width:100%;height:170px}
  .cta-content h2{font-size:28px}
  .footer-main{flex-direction:column;gap:32px}
  .footer-col{min-width:calc(50% - 20px)}
}
@media(max-width:520px){
  .container{padding:0 16px}
  .btn-user{display:none}
  .logo-text{font-size:16px}
  .logo-icon{width:32px;height:32px;font-size:15px}
  .stats-grid{grid-template-columns:1fr}
  .footer-col{min-width:100%}
  .footer-bottom{flex-direction:column;text-align:center}
  .section{padding:60px 0}
}
/* ============ 动画 ============ */
@keyframes fadeUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.hero-content{animation:fadeUp .8s ease both}
.hero-meta{animation:fadeUp .8s .2s ease both}

/* roulang page: article */
:root {
    --primary: #e63946;
    --primary-dark: #c1121f;
    --primary-light: #ff6b6b;
    --accent: #f4a261;
    --dark: #141824;
    --dark-2: #1e2432;
    --dark-3: #2a3040;
    --bg: #f5f6fa;
    --text: #1e2432;
    --text-light: #5a6478;
    --text-faint: #9aa3b5;
    --border: #e8eaf0;
    --white: #ffffff;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-lg: 24px;
    --shadow-sm: 0 2px 8px rgba(20, 24, 36, 0.06);
    --shadow: 0 8px 30px rgba(20, 24, 36, 0.10);
    --shadow-lg: 0 20px 50px rgba(20, 24, 36, 0.16);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --container: 1200px;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro SC", "PingFang SC", "Segoe UI", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}
a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition);
}
img {
    max-width: 100%;
    display: block;
}
button, input {
    font-family: inherit;
    border: none;
    outline: none;
}
ul, ol {
    list-style: none;
}
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

/* 导航 */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 2px 20px rgba(20, 24, 36, 0.04);
}
.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 20px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.5px;
    box-shadow: 0 4px 14px rgba(230, 57, 70, 0.3);
}
.logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    letter-spacing: -0.3px;
    line-height: 1.2;
}
.logo-text span {
    color: var(--primary);
    margin-left: 2px;
}
.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0 20px;
}
.nav-menu a {
    padding: 8px 16px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-light);
    transition: all var(--transition);
    position: relative;
}
.nav-menu a:hover {
    color: var(--primary);
    background: rgba(230, 57, 70, 0.08);
}
.nav-menu a.active {
    color: var(--primary);
    background: rgba(230, 57, 70, 0.12);
    font-weight: 600;
}
.nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}
.search-box {
    display: flex;
    align-items: center;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 6px 8px 6px 14px;
    gap: 6px;
    transition: all var(--transition);
    width: 200px;
}
.search-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.12);
    background: #fff;
}
.search-box i {
    color: var(--text-faint);
    font-size: 13px;
}
.search-box input {
    background: transparent;
    border: none;
    font-size: 13px;
    width: 100%;
    color: var(--text);
}
.search-box input::placeholder {
    color: var(--text-faint);
}
.btn-user {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-light);
    border: 1px solid var(--border);
    background: #fff;
    transition: all var(--transition);
}
.btn-user:hover {
    border-color: var(--primary);
    color: var(--primary);
}
.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 20px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 4px 16px rgba(230, 57, 70, 0.3);
    transition: all var(--transition);
}
.btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(230, 57, 70, 0.4);
    color: #fff;
}
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 6px;
}
.nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all var(--transition);
}

/* Article Hero */
.article-hero {
    position: relative;
    padding: 60px 0 50px;
    background: linear-gradient(120deg, var(--dark) 0%, #232a3d 55%, #2d3448 100%);
    overflow: hidden;
}
.article-hero::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -100px;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(230, 57, 70, 0.18), transparent 70%);
    pointer-events: none;
}
.article-hero::after {
    content: '';
    position: absolute;
    bottom: -180px;
    left: -80px;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(244, 162, 97, 0.12), transparent 70%);
    pointer-events: none;
}
.article-hero .container {
    position: relative;
    z-index: 2;
    max-width: 860px;
}
.article-crumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: 20px;
}
.article-crumb a {
    color: rgba(255, 255, 255, 0.65);
    transition: color var(--transition);
}
.article-crumb a:hover {
    color: var(--accent);
}
.article-crumb i {
    font-size: 10px;
}
.article-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(230, 57, 70, 0.2);
    border: 1px solid rgba(230, 57, 70, 0.4);
    color: #ff8f95;
    font-size: 13px;
    font-weight: 600;
    padding: 5px 14px;
    border-radius: 999px;
    margin-bottom: 18px;
    letter-spacing: 0.3px;
}
.article-title {
    font-size: 34px;
    font-weight: 800;
    color: #fff;
    line-height: 1.3;
    margin-bottom: 18px;
    letter-spacing: -0.4px;
}
.article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 13px;
}
.article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.article-meta i {
    font-size: 13px;
}
.article-meta .meta-sep {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    display: inline-block;
}

/* Main Content */
.article-main {
    padding: 50px 0 70px;
}
.article-grid {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 40px;
    align-items: start;
}
.article-content-wrap {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 40px 44px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}
.article-content {
    font-size: 15.5px;
    line-height: 1.9;
    color: #3a4256;
}
.article-content p {
    margin-bottom: 18px;
}
.article-content h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark);
    margin: 36px 0 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--bg);
}
.article-content h3 {
    font-size: 19px;
    font-weight: 600;
    color: var(--dark);
    margin: 28px 0 12px;
}
.article-content img {
    border-radius: var(--radius);
    margin: 24px 0;
    box-shadow: var(--shadow);
}
.article-content blockquote {
    border-left: 4px solid var(--primary);
    background: #fff5f5;
    padding: 16px 22px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 24px 0;
    color: var(--text-light);
    font-style: italic;
}
.article-content ul, .article-content ol {
    margin: 16px 0 20px;
    padding-left: 24px;
}
.article-content ul li {
    position: relative;
    padding-left: 8px;
    margin-bottom: 8px;
}
.article-content ul li::before {
    content: '';
    position: absolute;
    left: -12px;
    top: 10px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary);
}
.article-content ol li {
    list-style: decimal;
    margin-bottom: 8px;
    padding-left: 4px;
}
.article-tags {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}
.tag-label {
    font-size: 13px;
    color: var(--text-faint);
    font-weight: 500;
}
.article-tags a {
    display: inline-block;
    padding: 5px 14px;
    background: var(--bg);
    border-radius: 999px;
    font-size: 12px;
    color: var(--text-light);
    transition: all var(--transition);
    border: 1px solid var(--border);
}
.article-tags a:hover {
    background: rgba(230, 57, 70, 0.08);
    color: var(--primary);
    border-color: rgba(230, 57, 70, 0.2);
}

/* Sidebar */
.article-sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
    position: sticky;
    top: 96px;
}
.side-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 26px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}
.side-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
}
.side-card-header h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--dark);
    position: relative;
    padding-left: 12px;
}
.side-card-header h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 2px;
    width: 4px;
    height: 16px;
    border-radius: 4px;
    background: linear-gradient(180deg, var(--primary), var(--accent));
}
.side-card-header a {
    font-size: 13px;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.side-card-header a i {
    font-size: 11px;
}
.side-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--bg);
    transition: all var(--transition);
}
.side-list li:last-child {
    border-bottom: none;
}
.side-list li:hover a {
    color: var(--primary);
}
.side-list .num {
    width: 30px;
    height: 30px;
    border-radius: var(--radius-sm);
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-faint);
    flex-shrink: 0;
    transition: all var(--transition);
}
.side-list li:nth-child(1) .num {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
}
.side-list li:nth-child(2) .num {
    background: linear-gradient(135deg, var(--accent), #f6c487);
    color: #fff;
}
.side-list li:nth-child(3) .num {
    background: linear-gradient(135deg, #6c63ff, #9c94ff);
    color: #fff;
}
.side-list li a {
    flex: 1;
    font-size: 14px;
    color: var(--text);
    line-height: 1.4;
    transition: color var(--transition);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.side-list li .time {
    font-size: 11px;
    color: var(--text-faint);
    white-space: nowrap;
}
.side-cta {
    background: linear-gradient(135deg, var(--dark) 0%, #2a2f44 100%);
    border: none;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.side-cta::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -40px;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: rgba(230, 57, 70, 0.15);
}
.side-cta h3 {
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}
.side-cta p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 13px;
    margin-bottom: 16px;
}
.side-cta .cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    padding: 10px 24px;
    border-radius: 999px;
    transition: all var(--transition);
    box-shadow: 0 4px 16px rgba(230, 57, 70, 0.35);
}
.side-cta .cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(230, 57, 70, 0.45);
}

/* Not found */
.not-found {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 80px 40px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    max-width: 720px;
    margin: 0 auto;
}
.not-found .nf-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(230, 57, 70, 0.12), rgba(244, 162, 97, 0.12));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 30px;
    color: var(--primary);
}
.not-found h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
}
.not-found p {
    color: var(--text-light);
    margin-bottom: 24px;
}
.not-found .btn-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    padding: 10px 28px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    transition: all var(--transition);
    box-shadow: 0 4px 16px rgba(230, 57, 70, 0.3);
}
.not-found .btn-back:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(230, 57, 70, 0.4);
}

/* CTA */
.section-cta {
    padding: 70px 0;
    background: linear-gradient(135deg, var(--dark) 0%, #242b3d 50%, #2d3448 100%);
    position: relative;
    overflow: hidden;
}
.section-cta::before {
    content: '';
    position: absolute;
    top: -120px;
    left: 20%;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: rgba(230, 57, 70, 0.15);
    filter: blur(40px);
}
.section-cta::after {
    content: '';
    position: absolute;
    bottom: -100px;
    right: 10%;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: rgba(244, 162, 97, 0.12);
    filter: blur(40px);
}
.cta-inner {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
}
.cta-inner h2 {
    font-size: 32px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}
.cta-inner p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 15px;
    margin-bottom: 28px;
}
.cta-actions {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
}
.cta-actions .btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    padding: 12px 32px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 6px 24px rgba(230, 57, 70, 0.4);
    transition: all var(--transition);
}
.cta-actions .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(230, 57, 70, 0.5);
}
.cta-actions .btn-outline {
    background: transparent;
    color: rgba(255, 255, 255, 0.9);
    padding: 12px 32px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all var(--transition);
}
.cta-actions .btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(244, 162, 97, 0.1);
}

/* Footer */
.site-footer {
    background: var(--dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 70px 0 0;
}
.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 50px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand .logo {
    margin-bottom: 16px;
}
.footer-brand .logo-text {
    color: #fff;
}
.footer-brand p {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: 20px;
    max-width: 320px;
}
.footer-social {
    display: flex;
    gap: 12px;
}
.footer-social a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    transition: all var(--transition);
}
.footer-social a:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-3px);
}
.footer-col h4 {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 18px;
}
.footer-col ul li {
    margin-bottom: 10px;
}
.footer-col ul li a {
    font-size: 13.5px;
    color: rgba(255, 255, 255, 0.55);
    transition: all var(--transition);
    position: relative;
    padding-left: 0;
}
.footer-col ul li a:hover {
    color: var(--accent);
    padding-left: 6px;
}
.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}
.footer-bottom a {
    color: rgba(255, 255, 255, 0.5);
}
.footer-bottom a:hover {
    color: var(--accent);
}

/* Responsive */
@media (max-width: 1024px) {
    .article-grid {
        grid-template-columns: 1fr;
    }
    .article-sidebar {
        position: static;
        flex-direction: row;
        flex-wrap: wrap;
        gap: 16px;
    }
    .side-card {
        flex: 1 1 calc(50% - 16px);
        min-width: 260px;
    }
    .side-cta {
        flex: 1 1 100%;
    }
}
@media (max-width: 768px) {
    .nav-wrap {
        height: 64px;
    }
    .search-box {
        display: none;
    }
    .btn-user {
        display: none;
    }
    .nav-toggle {
        display: flex;
    }
    .nav-menu {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        align-items: flex-start;
        padding: 16px 24px 24px;
        gap: 4px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow);
        transform: translateY(-120%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        margin: 0;
        z-index: 999;
    }
    .nav-menu.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    .nav-menu a {
        width: 100%;
        padding: 12px 16px;
        border-radius: 10px;
    }
    .footer-main {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }
    .article-hero {
        padding: 40px 0 40px;
    }
    .article-title {
        font-size: 26px;
    }
    .article-content-wrap {
        padding: 28px 24px;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}
@media (max-width: 520px) {
    .container {
        padding: 0 16px;
    }
    .logo-text {
        font-size: 17px;
    }
    .logo-icon {
        width: 36px;
        height: 36px;
        font-size: 17px;
    }
    .btn-cta {
        padding: 8px 14px;
        font-size: 13px;
    }
    .article-hero {
        padding: 32px 0 32px;
    }
    .article-title {
        font-size: 22px;
    }
    .article-content-wrap {
        padding: 20px 16px;
        border-radius: 14px;
    }
    .article-content {
        font-size: 15px;
    }
    .footer-main {
        grid-template-columns: 1fr;
        padding-bottom: 30px;
    }
    .footer-col {
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        padding-top: 16px;
    }
    .footer-col h4 {
        margin-bottom: 12px;
    }
    .cta-inner h2 {
        font-size: 24px;
    }
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    .side-card {
        flex: 1 1 100%;
    }
    .article-meta {
        gap: 10px;
    }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root {
  --primary: #f0b232;
  --primary-light: #ffd166;
  --primary-dark: #d4951c;
  --accent: #194f97;
  --accent-light: #2e6fc0;
  --bg: #0a0e14;
  --bg-elev: #111820;
  --bg-deep: #070a0e;
  --card: #141d27;
  --card-hover: #182330;
  --border: #1d2836;
  --border-light: #263546;
  --text: #eef1f5;
  --muted: #8e9bab;
  --light: #c6ced6;
  --success: #2ecc71;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 10px 36px rgba(0, 0, 0, 0.45);
  --shadow-hover: 0 18px 52px rgba(0, 0, 0, 0.6);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container: 1200px;
}

/* ===== Reset / Base ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

img {
  max-width: 100%;
  display: block;
}

button,
input {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
}

ul,
ol {
  list-style: none;
}

::selection {
  background: rgba(240, 178, 50, 0.3);
  color: #fff;
}

/* ===== 容器 ===== */
.container {
  width: min(var(--container), 92%);
  margin: 0 auto;
}

/* ===== 通用按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  transition: var(--transition);
  cursor: pointer;
  line-height: 1.4;
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #1a1206;
  box-shadow: 0 6px 24px rgba(240, 178, 50, 0.28);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(240, 178, 50, 0.42);
}

.btn-ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(240, 178, 50, 0.08);
}

/* ===== 顶部导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 14, 20, 0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(29, 40, 54, 0.8);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 20px;
  color: #1a1206;
  box-shadow: 0 4px 16px rgba(240, 178, 50, 0.35);
}

.logo-text {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--text);
  line-height: 1.2;
}

.logo-text span {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--primary);
  letter-spacing: 3px;
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-menu a {
  font-size: 15px;
  font-weight: 500;
  color: var(--muted);
  position: relative;
  padding: 8px 2px;
}

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 100%;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-menu a:hover {
  color: var(--text);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  transform: translateX(-50%) scaleX(1);
}

.nav-menu a.active {
  color: var(--primary);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 16px;
  color: var(--muted);
  transition: var(--transition);
  width: 190px;
}

.search-box:focus-within {
  border-color: var(--primary);
  background: rgba(240, 178, 50, 0.06);
}

.search-box i {
  font-size: 13px;
}

.search-box input {
  background: transparent;
  border: none;
  color: var(--text);
  width: 100%;
  font-size: 13px;
}

.search-box input::placeholder {
  color: var(--muted);
}

.btn-user {
  padding: 8px 18px;
  border-radius: 999px;
  border: 1px solid var(--border-light);
  font-size: 14px;
  font-weight: 500;
  color: var(--light);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.btn-user:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-cta {
  padding: 9px 22px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #1a1206;
  font-weight: 700;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
  box-shadow: 0 4px 18px rgba(240, 178, 50, 0.3);
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(240, 178, 50, 0.45);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== 页面 Hero / Banner ===== */
.page-hero {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 160px 0 110px;
  margin-top: 74px;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(7, 10, 14, 0.96) 0%, rgba(7, 10, 14, 0.82) 40%, rgba(7, 10, 14, 0.45) 100%);
}

.page-hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(transparent, var(--bg));
}

.page-hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(240, 178, 50, 0.12);
  border: 1px solid rgba(240, 178, 50, 0.35);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 18px;
  border-radius: 999px;
  margin-bottom: 24px;
  letter-spacing: 1px;
}

.page-hero h1 {
  font-size: 54px;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: 1px;
  margin-bottom: 18px;
  color: #fff;
}

.page-hero p {
  font-size: 17px;
  color: var(--light);
  line-height: 1.8;
  margin-bottom: 34px;
  max-width: 640px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== 通用板块 ===== */
.section {
  padding: 85px 0;
}

.section-alt {
  background: var(--bg-elev);
  border-top: 1px solid rgba(29, 40, 54, 0.5);
  border-bottom: 1px solid rgba(29, 40, 54, 0.5);
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 52px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 2px;
  background: rgba(240, 178, 50, 0.1);
  border: 1px solid rgba(240, 178, 50, 0.2);
  padding: 5px 16px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.section-head h2 {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 14px;
  color: #fff;
}

.section-head p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

/* ===== 赛事频道快捷入口 ===== */
.channel-section {
  padding: 60px 0 30px;
}

.channel-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
}

.channel-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--light);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
}

.channel-chip i {
  color: var(--primary);
  font-size: 14px;
}

.channel-chip:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(240, 178, 50, 0.06);
  transform: translateY(-2px);
}

.channel-line {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-light), transparent);
  margin: 36px auto 0;
  max-width: 900px;
}

/* ===== 热门赛事卡片 ===== */
.match-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.match-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.match-card:hover {
  transform: translateY(-6px);
  border-color: rgba(240, 178, 50, 0.35);
  box-shadow: var(--shadow-hover);
  background: var(--card-hover);
}

.match-cover {
  position: relative;
  height: 210px;
  overflow: hidden;
}

.match-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.match-card:hover .match-cover img {
  transform: scale(1.07);
}

.match-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(10, 14, 20, 0.65) 100%);
}

.match-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: rgba(240, 178, 50, 0.92);
  color: #1a1206;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 999px;
  letter-spacing: 0.5px;
}

.match-spec {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 2;
  background: rgba(10, 14, 20, 0.72);
  backdrop-filter: blur(6px);
  color: var(--text);
  font-size: 12px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.match-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.match-body h3 {
  font-size: 19px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
  line-height: 1.4;
}

.match-body p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 18px;
  flex: 1;
}

.match-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid rgba(29, 40, 54, 0.7);
}

.match-time {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--light);
}

.match-time i {
  color: var(--primary);
}

.match-btn {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.match-btn i {
  transition: transform 0.3s;
}

.match-btn:hover {
  color: var(--primary-light);
}

.match-btn:hover i {
  transform: translateX(4px);
}

/* ===== 观赛流程 ===== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.step-item {
  position: relative;
  text-align: center;
  padding: 36px 24px 32px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.step-item:hover {
  transform: translateY(-6px);
  border-color: rgba(240, 178, 50, 0.4);
  box-shadow: var(--shadow-hover);
}

.step-num {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #1a1206;
  font-weight: 800;
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(240, 178, 50, 0.4);
}

.step-icon {
  width: 62px;
  height: 62px;
  margin: 0 auto 20px;
  border-radius: 18px;
  background: rgba(240, 178, 50, 0.1);
  border: 1px solid rgba(240, 178, 50, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--primary);
}

.step-item h3 {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}

.step-item p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.65;
}

.step-item::after {
  content: "→";
  position: absolute;
  top: 50%;
  right: -24px;
  transform: translateY(-50%);
  color: var(--primary);
  font-size: 18px;
  z-index: 3;
}

.step-item:last-child::after {
  display: none;
}

/* ===== 设备支持 ===== */
.device-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}

.device-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 34px 24px;
  text-align: center;
  transition: var(--transition);
}

.device-card:hover {
  transform: translateY(-6px);
  border-color: rgba(240, 178, 50, 0.35);
  box-shadow: var(--shadow-hover);
}

.device-icon {
  width: 68px;
  height: 68px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(240, 178, 50, 0.15), rgba(240, 178, 50, 0.05));
  border: 1px solid rgba(240, 178, 50, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  color: var(--primary);
}

.device-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.device-card p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.65;
}

.spec-badge-row {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 40px;
}

.spec-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  padding: 8px 20px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  color: var(--light);
  transition: var(--transition);
}

.spec-badge i {
  color: var(--primary);
}

.spec-badge:hover {
  border-color: var(--primary);
  background: rgba(240, 178, 50, 0.06);
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--bg-deep);
  border-top: 1px solid rgba(29, 40, 54, 0.5);
  border-bottom: 1px solid rgba(29, 40, 54, 0.5);
}

.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(240, 178, 50, 0.35);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 28px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  list-style: none;
  transition: var(--transition);
  user-select: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary .faq-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(240, 178, 50, 0.1);
  border: 1px solid rgba(240, 178, 50, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 14px;
  flex-shrink: 0;
  transition: var(--transition);
}

.faq-item[open] summary .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #1a1206;
}

.faq-item summary:hover {
  color: var(--primary);
}

.faq-answer {
  padding: 0 28px 24px;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.85;
  border-top: 1px solid rgba(29, 40, 54, 0.6);
  margin: 0 28px 0;
  padding: 18px 0 24px;
}

.faq-answer p {
  margin-bottom: 8px;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 90px 0;
  text-align: center;
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--bg) 0%, rgba(7, 10, 14, 0.88) 30%, rgba(7, 10, 14, 0.9) 100%);
}

.cta-content {
  position: relative;
  z-index: 2;
  max-width: 650px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: 40px;
  font-weight: 900;
  color: #fff;
  margin-bottom: 16px;
  line-height: 1.3;
}

.cta-content p {
  font-size: 16px;
  color: var(--muted);
  margin-bottom: 32px;
  line-height: 1.8;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(29, 40, 54, 0.8);
  padding: 72px 0 32px;
}

.footer-main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 52px;
}

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 20px;
  max-width: 360px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 16px;
  transition: var(--transition);
}

.footer-social a:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-3px);
  background: rgba(240, 178, 50, 0.08);
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul a {
  font-size: 14px;
  color: var(--muted);
  transition: var(--transition);
}

.footer-col ul a:hover {
  color: var(--primary);
  padding-left: 5px;
}

.footer-bottom {
  border-top: 1px solid rgba(29, 40, 54, 0.6);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-bottom span {
  font-size: 13px;
  color: var(--muted);
}

.footer-bottom a {
  color: var(--muted);
}

.footer-bottom a:hover {
  color: var(--primary);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .container {
    width: 94%;
  }

  .nav-menu {
    gap: 24px;
  }

  .search-box {
    width: 140px;
  }

  .page-hero h1 {
    font-size: 44px;
  }

  .match-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px 20px;
  }

  .step-item::after {
    content: "";
  }

  .device-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 768px) {
  .site-header {
    background: rgba(10, 14, 20, 0.98);
  }

  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: absolute;
    top: 74px;
    left: 0;
    right: 0;
    background: var(--bg-elev);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 6%;
    gap: 20px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    box-shadow: var(--shadow);
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-menu a {
    font-size: 16px;
    width: 100%;
  }

  .nav-menu a::after {
    display: none;
  }

  .search-box {
    display: none;
  }

  .btn-user {
    display: none;
  }

  .btn-cta {
    padding: 8px 18px;
    font-size: 13px;
  }

  .page-hero {
    padding: 130px 0 80px;
  }

  .page-hero h1 {
    font-size: 36px;
  }

  .page-hero p {
    font-size: 15px;
  }

  .section {
    padding: 60px 0;
  }

  .section-head h2 {
    font-size: 30px;
  }

  .match-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .match-cover {
    height: 190px;
  }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .step-item {
    padding: 28px 20px;
  }

  .device-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .device-card {
    padding: 24px 16px;
  }

  .cta-section {
    padding: 60px 0;
  }

  .cta-content h2 {
    font-size: 30px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 520px) {
  .logo-text {
    font-size: 18px;
  }

  .logo-text span {
    font-size: 10px;
  }

  .btn-cta {
    padding: 8px 14px;
    font-size: 12px;
  }

  .logo-icon {
    width: 38px;
    height: 38px;
    font-size: 17px;
  }

  .page-hero h1 {
    font-size: 30px;
  }

  .hero-actions .btn {
    padding: 10px 20px;
    font-size: 14px;
  }

  .section-head h2 {
    font-size: 26px;
  }

  .device-grid {
    grid-template-columns: 1fr;
  }

  .spec-badge {
    padding: 7px 14px;
    font-size: 12px;
  }

  .cta-content h2 {
    font-size: 26px;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-brand p {
    max-width: 100%;
  }
}

/* ===== 焦点可见性 ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ===== 滚动条 ===== */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: var(--border-light);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}