/* roulang page: index */
:root{
  --primary:#1E6FF2;
  --primary-600:#1559C9;
  --primary-50:#EEF4FF;
  --accent:#FF8A2B;
  --accent-50:#FFF3E8;
  --ink:#101A2B;
  --ink-2:#4A5875;
  --ink-3:#8A93A6;
  --bg:#F5F7FB;
  --surface:#FFFFFF;
  --line:#E6EAF3;
  --danger:#E5484D;
  --success:#12A150;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(16,26,43,.04),0 8px 24px rgba(16,26,43,.06);
  --shadow-hover:0 14px 32px rgba(31,111,242,.12);
  --container:1200px;
  --gap:24px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-600);}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;color:var(--ink);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:80px 0;}
.section-alt{background:var(--surface);}
.section-head{max-width:720px;margin-bottom:32px;}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;font-weight:700;
  color:var(--primary);background:var(--primary-50);
  padding:6px 12px;border-radius:999px;margin-bottom:14px;
}
.section-title{font-size:30px;font-weight:800;}
.section-desc{margin-top:12px;color:var(--ink-2);font-size:16px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:all .2s ease;white-space:nowrap;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(30,111,242,.22);}
.btn-primary:hover{background:var(--primary-600);color:#fff;box-shadow:0 12px 26px rgba(30,111,242,.3);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:rgba(30,111,242,.06);color:var(--primary-600);}
.btn-link{color:var(--primary);font-weight:600;height:auto;padding:0;border:0;background:none;text-decoration:underline;text-underline-offset:4px;}
.btn-link:hover{color:var(--primary-600);}
.btn[disabled],.btn.is-disabled{background:#EEF1F6;color:var(--ink-3);border-color:transparent;box-shadow:none;cursor:not-allowed;}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;
  background:var(--primary-50);color:var(--primary-600);
}
.tag-accent{background:var(--accent-50);color:#C25A08;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(16,26,43,.03);
}
.header-inner{display:flex;align-items:center;gap:28px;height:70px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(140deg,var(--primary),#4A90FF);
  color:#fff;font-weight:800;font-size:18px;
  display:flex;align-items:center;justify-content:center;
}
.brand-text{font-size:18px;font-weight:800;color:var(--ink);letter-spacing:.01em;}
.main-nav{display:flex;align-items:center;gap:6px;margin-right:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:38px;
  padding:0 14px;border-radius:10px;font-size:15px;font-weight:500;color:var(--ink-2);
}
.nav-link:hover{background:var(--primary-50);color:var(--primary-600);}
.nav-link.active{color:var(--primary);font-weight:700;background:var(--primary-50);}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:-15px;transform:translateX(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--primary);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;width:240px;
  padding:0 14px;background:var(--bg);border:1px solid var(--line);border-radius:999px;
  transition:all .2s ease;
}
.search-box i{color:var(--ink-3);font-size:14px;}
.search-box input{
  flex:1;border:0;background:transparent;height:100%;outline:none;font-size:14px;color:var(--ink);
}
.search-box input::placeholder{color:var(--ink-3);}
.search-box:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 4px rgba(30,111,242,.12);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary);}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center right;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.9) 42%,rgba(238,244,255,.82) 100%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
  min-height:520px;padding-top:56px;padding-bottom:48px;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;color:var(--primary-600);
  background:#fff;border:1px solid var(--line);
  padding:6px 12px;border-radius:999px;margin-bottom:18px;
  box-shadow:var(--shadow-sm);
}
.hero-eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--success);}
.hero h1{font-size:44px;font-weight:800;letter-spacing:-.01em;line-height:1.24;}
.hero h1 em{font-style:normal;color:var(--primary);}
.hero-sub{margin-top:16px;font-size:17px;color:var(--ink-2);max-width:520px;}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:18px;margin-top:26px;}
.hero-badges li{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--ink-2);font-weight:600;}
.hero-badges i{color:var(--primary);font-size:12px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;height:340px;object-fit:cover;
  border-radius:20px;box-shadow:0 18px 40px rgba(16,26,43,.14);
  border:6px solid #fff;
}
.hero-float{
  position:absolute;left:-18px;bottom:24px;
  background:#fff;border-radius:14px;padding:14px 18px;
  box-shadow:var(--shadow-sm);border:1px solid var(--line);
}
.hero-float strong{display:block;font-size:20px;font-weight:800;font-variant-numeric:tabular-nums;}
.hero-float span{font-size:12px;color:var(--ink-3);}
.stat-bar{
  position:relative;z-index:2;
  display:grid;grid-template-columns:repeat(4,1fr);
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);overflow:hidden;margin-bottom:-40px;
}
.stat-item{padding:22px 24px;border-right:1px solid var(--line);}
.stat-item:last-child{border-right:0;}
.stat-num{
  font-size:26px;font-weight:800;color:var(--primary);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.stat-num small{font-size:13px;font-weight:600;color:var(--ink-2);margin-left:4px;}
.stat-label{font-size:13px;color:var(--ink-3);margin-top:4px;}

/* ============ 时间轴玩法 ============ */
.timeline{margin-top:56px;display:flex;flex-direction:column;gap:36px;}
.tl-item{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;}
.tl-item:nth-child(even) .tl-media{order:2;}
.tl-num{
  font-size:14px;font-weight:800;color:var(--primary);
  background:var(--primary-50);border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:28px;font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.tl-item h3{font-size:20px;margin-bottom:10px;}
.tl-item p{color:var(--ink-2);font-size:15px;line-height:1.85;}
.tl-media img{
  width:100%;height:250px;object-fit:cover;border-radius:var(--radius-img);
  box-shadow:var(--shadow-sm);
}

/* ============ Bento 奖励 ============ */
.bento-tabs{display:flex;gap:10px;margin-bottom:26px;flex-wrap:wrap;}
.bento-tabs span{
  font-size:14px;font-weight:600;color:var(--ink-2);
  padding:8px 16px;border-radius:999px;background:var(--bg);border:1px solid var(--line);
}
.bento-tabs span.on{background:var(--primary);color:#fff;border-color:var(--primary);}
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:20px;}
.b-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:all .2s ease;
  display:flex;flex-direction:column;
}
.b-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.b-card img{width:100%;object-fit:cover;}
.b-large{grid-column:span 3;}
.b-large img{height:210px;}
.b-small{grid-column:span 2;}
.b-small img{height:130px;}
.b-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1;}
.b-body h3{font-size:18px;}
.b-large .b-body h3{font-size:20px;}
.b-body p{font-size:14px;color:var(--ink-2);line-height:1.75;}
.b-body .tag{align-self:flex-start;margin-top:auto;}

/* ============ 进度 ============ */
.progress-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:36px 32px;box-shadow:var(--shadow-sm);
}
.progress-top{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;margin-bottom:26px;}
.progress-top h3{font-size:20px;}
.progress-top span{font-size:14px;color:var(--ink-2);}
.progress-track{height:10px;background:var(--bg);border-radius:999px;overflow:hidden;margin-bottom:34px;}
.progress-fill{height:100%;width:62%;border-radius:999px;background:linear-gradient(90deg,var(--primary),#5B9CFF);}
.steps{display:grid;grid-template-columns:repeat(4,1fr);}
.step{position:relative;padding-top:36px;text-align:center;}
.step::before{content:"";position:absolute;top:12px;left:0;right:0;height:2px;background:var(--line);}
.step:first-child::before{left:50%;}
.step:last-child::before{right:50%;}
.step.done::before,.step.current::before{background:var(--success);}
.step.current::before{background:linear-gradient(90deg,var(--success),var(--line));}
.step-dot{
  position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:26px;border-radius:50%;background:#fff;
  border:2px solid var(--line);display:flex;align-items:center;justify-content:center;
  font-size:11px;color:var(--ink-3);font-weight:700;
}
.step.done .step-dot{background:var(--success);border-color:var(--success);color:#fff;}
.step.current .step-dot{background:var(--accent);border-color:var(--accent);color:#fff;box-shadow:0 0 0 5px var(--accent-50);}
.step-name{font-size:15px;font-weight:700;}
.step-state{font-size:12px;color:var(--ink-3);margin-top:4px;}
.step.current .step-state{color:#C25A08;font-weight:600;}
.step.done .step-state{color:var(--success);font-weight:600;}

/* ============ 参与 CTA 卡 ============ */
.join-card{
  background:var(--primary-50);border:1px solid rgba(30,111,242,.35);
  border-radius:20px;padding:40px;display:grid;grid-template-columns:1.2fr .8fr;gap:40px;
  align-items:center;
}
.join-card h2{font-size:28px;margin-bottom:12px;}
.join-card p.lead{color:var(--ink-2);font-size:16px;max-width:520px;}
.join-btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px;}
.join-points li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;border-bottom:1px dashed rgba(30,111,242,.28);font-size:15px;color:var(--ink-2);
}
.join-points li:last-child{border-bottom:0;}
.join-points i{color:var(--primary);margin-top:5px;}
.join-points strong{color:var(--ink);}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:24px;}
.news-feature{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:all .2s ease;height:100%;
  display:flex;flex-direction:column;
}
.news-feature:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.news-feature img{height:250px;width:100%;object-fit:cover;}
.news-feature .nf-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-feature h3{font-size:22px;}
.news-feature p{color:var(--ink-2);font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--ink-3);margin-top:auto;}
.news-side{display:flex;flex-direction:column;gap:16px;}
.news-item{
  display:flex;gap:16px;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:16px;transition:all .2s ease;flex:1;
}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D7E4FF;}
.news-item img{width:96px;height:76px;object-fit:cover;border-radius:10px;flex-shrink:0;}
.news-item .ni-body{display:flex;flex-direction:column;gap:6px;min-width:0;}
.news-item h3{font-size:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item p{font-size:13px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:56px 24px;text-align:center;
}
.empty-state i{font-size:34px;color:var(--ink-3);}
.empty-state p{margin:14px 0 18px;color:var(--ink-2);}

/* ============ 评价 ============ */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.quote{
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--primary);
  border-radius:14px;padding:24px;box-shadow:var(--shadow-sm);
}
.quote .stars{color:var(--accent);font-size:13px;letter-spacing:2px;margin-bottom:12px;}
.quote p{font-size:15px;color:var(--ink-2);line-height:1.85;}
.quote .who{display:flex;align-items:center;gap:10px;margin-top:18px;font-size:13px;color:var(--ink-3);}
.quote .who span.av{
  width:32px;height:32px;border-radius:50%;background:var(--primary-50);color:var(--primary-600);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;
}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:22px 4px;font-size:16px;font-weight:600;color:var(--ink);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-item summary i{color:var(--primary);transition:transform .25s ease;font-size:14px;flex-shrink:0;}
.faq-item[open] summary i{transform:rotate(180deg);}
.faq-item .faq-body{padding:0 4px 22px;font-size:15px;color:var(--ink-2);line-height:1.85;max-width:900px;}

/* ============ 页脚 ============ */
.site-footer{background:#0E1A2B;color:#9FAEC6;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:linear-gradient(140deg,var(--primary),#4A90FF);}
.footer-brand span.fb-name{color:#fff;font-weight:800;font-size:17px;}
.site-footer p{font-size:14px;line-height:1.9;color:#9FAEC6;}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:#9FAEC6;font-size:14px;}
.footer-links a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7C8CA6;
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .hero h1{font-size:38px;}
  .hero-visual img{height:300px;}
}
@media (max-width:992px){
  .header-inner{height:66px;gap:16px;}
  .main-nav{
    position:absolute;top:66px;left:0;right:0;
    background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:4px;padding:12px 24px 20px;
    box-shadow:0 18px 32px rgba(16,26,43,.08);
    display:none;
  }
  .main-nav.open{display:flex;}
  .nav-link{height:46px;border-radius:10px;}
  .nav-link.active::after{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .search-box{width:180px;}
  .hero-inner{grid-template-columns:1fr;min-height:auto;padding-top:44px;gap:32px;}
  .hero h1{font-size:34px;}
  .hero-visual img{height:260px;}
  .hero-float{left:12px;}
  .stat-bar{grid-template-columns:repeat(2,1fr);margin-bottom:-30px;}
  .stat-item:nth-child(2){border-right:0;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line);}
  .tl-item{grid-template-columns:1fr;gap:20px;}
  .tl-item:nth-child(even) .tl-media{order:0;}
  .tl-media img{height:220px;}
  .b-large{grid-column:span 6;}
  .b-small{grid-column:span 3;}
  .join-card{grid-template-columns:1fr;gap:24px;padding:32px;}
  .news-grid{grid-template-columns:1fr;}
  .quote-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .section{padding:64px 0;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .search-box{display:none;}
  .hero-inner{padding-top:34px;padding-bottom:34px;}
  .hero h1{font-size:28px;}
  .hero-sub{font-size:15px;}
  .hero-btns .btn{flex:1;min-width:140px;}
  .hero-visual img{height:210px;}
  .stat-item{padding:16px 18px;}
  .stat-num{font-size:22px;}
  .section{padding:52px 0;}
  .section-title{font-size:24px;}
  .b-small{grid-column:span 6;}
  .steps{grid-template-columns:1fr 1fr;gap:18px 0;}
  .step:nth-child(2)::before{display:none;}
  .step:first-child::before{left:50%;}
  .news-item{flex-direction:column;}
  .news-item img{width:100%;height:160px;}
  .join-card h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:560px){
  .hero h1{font-size:26px;}
  .btn-lg{height:48px;padding:0 20px;font-size:15px;}
  .brand-text{font-size:16px;}
  .bento{gap:16px;}
  .progress-panel{padding:24px 18px;}
  .step-name{font-size:14px;}
}

/* roulang page: article */
:root{
  --primary:#1E6FF2;
  --primary-600:#1559C9;
  --primary-50:#EEF4FF;
  --accent:#FF8A2B;
  --accent-50:#FFF3E8;
  --ink:#101A2B;
  --ink-2:#4A5875;
  --ink-3:#8A93A6;
  --bg:#F5F7FB;
  --surface:#FFFFFF;
  --line:#E6EAF3;
  --danger:#E5484D;
  --success:#12A150;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(16,26,43,.04), 0 8px 24px rgba(16,26,43,.06);
  --shadow-hover:0 14px 32px rgba(31,111,242,.12);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;font-size:16px;line-height:1.8;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input{font:inherit;color:inherit}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 1px 2px rgba(16,26,43,.04)}
.header-inner{height:68px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:.2px;white-space:nowrap}
.brand-mark{width:32px;height:32px;border-radius:9px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:800;flex:none}
.brand-text{color:var(--ink)}
.main-nav{display:flex;align-items:center;gap:6px;margin-right:auto}
.nav-link{position:relative;display:inline-block;padding:8px 14px;font-size:15px;font-weight:500;color:var(--ink-2);border-radius:8px;transition:color .2s ease,background .2s ease}
.nav-link:hover{color:var(--primary);background:var(--primary-50)}
.nav-link.active{color:var(--primary);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--primary)}
.header-actions{display:flex;align-items:center;gap:12px}
.search-box{display:flex;align-items:center;gap:8px;height:40px;width:240px;padding:0 14px;background:var(--bg);border:1px solid var(--line);border-radius:999px;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease}
.search-box i{color:var(--ink-3);font-size:13px}
.search-box input{width:100%;border:0;background:transparent;outline:none;font-size:14px}
.search-box input::placeholder{color:var(--ink-3)}
.search-box:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 4px rgba(30,111,242,.12)}
.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:10px;color:var(--ink-2);cursor:pointer;transition:background .2s ease,color .2s ease}
.nav-toggle:hover{background:var(--primary-50);color:var(--primary)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(30,111,242,.22)}
.btn-primary:hover{background:var(--primary-600);box-shadow:0 12px 26px rgba(30,111,242,.28);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 10px rgba(30,111,242,.2)}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--primary)}
.btn-ghost:hover{background:var(--primary-50)}
.btn-ghost:active{background:#dde8ff}
.btn[disabled],.btn.is-disabled{background:#EDF0F6;color:#A6AFC2;border-color:#EDF0F6;box-shadow:none;cursor:not-allowed;transform:none}
.btn-text{color:var(--primary);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px;border-bottom:1px solid transparent;transition:border-color .2s ease,color .2s ease}
.btn-text:hover{color:var(--primary-600);border-color:var(--primary-600)}

/* page hero */
.page-hero{position:relative;padding:36px 0 44px;background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.94) 0%,rgba(245,247,251,.9) 100%)}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:18px}
.breadcrumb a{color:var(--ink-2);transition:color .2s ease}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#C3CAD8}
.breadcrumb .current{color:var(--ink-3);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{max-width:840px}
.article-eyebrow{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:999px;background:var(--primary-50);color:var(--primary-600);font-size:12px;font-weight:600;letter-spacing:.4px;margin-bottom:16px}
.article-head h1{font-size:32px;line-height:1.35;font-weight:800;letter-spacing:-.3px;color:var(--ink)}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;margin-top:20px;font-size:13px;color:var(--ink-3)}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--primary);font-size:12px}
.article-meta .tag{height:24px;padding:0 10px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--ink-2);font-size:12px;font-weight:600}

/* layout */
main{padding:40px 0 72px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:32px;align-items:start}
.article-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);padding:38px 42px 44px}

/* prose */
.prose{max-width:100%;font-size:17px;line-height:1.9;color:#243149}
.prose > *:first-child{margin-top:0}
.prose h2{position:relative;margin:44px 0 18px;padding-left:16px;font-size:22px;line-height:1.45;font-weight:700;color:var(--ink)}
.prose h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--primary)}
.prose h3{margin:32px 0 12px;font-size:19px;font-weight:700;color:var(--ink)}
.prose h4{margin:24px 0 10px;font-size:17px;font-weight:700;color:var(--ink)}
.prose p{margin:0 0 18px}
.prose ul,.prose ol{margin:0 0 20px;padding-left:0}
.prose ul li{position:relative;padding-left:22px;margin-bottom:10px}
.prose ul li::before{content:"";position:absolute;left:4px;top:13px;width:7px;height:7px;border-radius:50%;background:var(--primary);opacity:.55}
.prose ol{counter-reset:item}
.prose ol li{position:relative;padding-left:30px;margin-bottom:10px;counter-increment:item}
.prose ol li::before{content:counter(item);position:absolute;left:0;top:5px;width:20px;height:20px;border-radius:6px;background:var(--primary-50);color:var(--primary-600);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center}
.prose a{color:var(--primary);border-bottom:1px solid rgba(30,111,242,.35);transition:border-color .2s ease,color .2s ease}
.prose a:hover{color:var(--primary-600);border-color:var(--primary-600)}
.prose img{margin:24px 0;border-radius:var(--radius-img);box-shadow:var(--shadow-card)}
.prose blockquote{margin:24px 0;padding:18px 22px;background:var(--primary-50);border-left:4px solid var(--primary);border-radius:0 var(--radius-img) var(--radius-img) 0;color:var(--ink-2)}
.prose blockquote p:last-child{margin-bottom:0}
.prose table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;border:1px solid var(--line);border-radius:var(--radius-img);overflow:hidden}
.prose th{background:var(--primary-50);color:var(--ink);font-weight:700;text-align:left}
.prose th,.prose td{padding:12px 16px;border-bottom:1px solid var(--line)}
.prose tbody tr:nth-child(even){background:#FAFBFE}
.prose tbody tr:last-child td{border-bottom:0}
.prose code{background:#F1F4FA;padding:2px 6px;border-radius:6px;font-size:14px}
.prose hr{margin:32px 0;border:0;border-top:1px solid var(--line)}
.prose strong{font-weight:700;color:var(--ink)}

/* empty */
.empty-state{text-align:center;padding:56px 20px}
.empty-state i{font-size:38px;color:#C3CAD8}
.empty-state h2{margin:18px 0 8px;font-size:20px;font-weight:700;color:var(--ink)}
.empty-state p{color:var(--ink-3);font-size:15px;margin-bottom:22px}

/* post nav */
.post-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:24px}
.post-nav-item{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:18px 22px;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.post-nav-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#D6E2FA}
.post-nav-item .pn-label{display:block;font-size:12px;color:var(--ink-3);margin-bottom:6px}
.post-nav-item .pn-title{font-size:15px;font-weight:600;color:var(--ink);display:block}
.post-nav-item:hover .pn-title{color:var(--primary)}

/* sidebar */
.sidebar{display:flex;flex-direction:column;gap:20px;position:sticky;top:92px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);padding:22px 24px}
.panel-title{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--ink);margin-bottom:14px}
.panel-title i{color:var(--primary);font-size:13px}
.toc-list li{margin-bottom:2px}
.toc-list a{display:block;padding:8px 10px;font-size:14px;color:var(--ink-2);border-radius:8px;border-left:2px solid transparent;transition:color .2s ease,background .2s ease,border-color .2s ease}
.toc-list a:hover{color:var(--primary);background:var(--primary-50);border-left-color:var(--primary)}
.side-links li + li{margin-top:10px}
.side-links a{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink-2);padding:9px 10px;border-radius:10px;transition:background .2s ease,color .2s ease}
.side-links a:hover{background:var(--primary-50);color:var(--primary)}
.side-links i{color:var(--primary);font-size:13px}
.side-note{font-size:13px;color:var(--ink-3);line-height:1.75}

/* related */
.section{margin-top:56px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px}
.section-head h2{font-size:24px;font-weight:800;letter-spacing:-.2px;color:var(--ink)}
.section-head p{margin-top:8px;font-size:14px;color:var(--ink-3)}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#D6E2FA}
.card-cover{aspect-ratio:16/9;width:100%;object-fit:cover;border-radius:0}
.card-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-tag{align-self:flex-start;height:24px;padding:0 10px;border-radius:999px;background:var(--accent-50);color:#B4611A;font-size:12px;font-weight:600;display:inline-flex;align-items:center}
.card-title{font-size:16px;font-weight:700;line-height:1.5;color:var(--ink)}
.card:hover .card-title{color:var(--primary)}
.card-desc{font-size:14px;color:var(--ink-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--ink-3)}
.cta-strip{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;margin-top:32px;background:var(--surface);border:1px solid #D6E2FA;border-radius:var(--radius-card);padding:26px 30px;box-shadow:var(--shadow-card)}
.cta-strip h3{font-size:19px;font-weight:700;color:var(--ink);margin-bottom:6px}
.cta-strip p{font-size:14px;color:var(--ink-3)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* footer */
.site-footer{background:#0E1A2B;color:#A9B4C6;padding:64px 0 0;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--primary)}
.fb-name{color:#fff;font-size:17px;font-weight:800}
.site-footer p{font-size:14px;line-height:1.85;color:#8D99AC;margin-bottom:8px}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:#A9B4C6;transition:color .2s ease}
.footer-links a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13px;color:#7C8799}

@media (max-width:1200px){
  .article-layout{grid-template-columns:1fr}
  .sidebar{position:static;order:2}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:992px){
  .header-inner{gap:16px}
  .main-nav{position:fixed;top:68px;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:4px;padding:16px 24px 24px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 18px 32px rgba(16,26,43,.1)}
  .main-nav.open{display:flex}
  .nav-link{padding:12px 14px;font-size:16px}
  .nav-link.active::after{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .search-box{width:200px}
  .article-card{padding:28px 26px 34px}
  .prose{font-size:16px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .page-hero{padding:26px 0 34px}
  .article-head h1{font-size:24px}
  .brand-text{font-size:16px}
  .search-box{display:none}
  .article-meta{gap:8px 14px}
  .card-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-strip{padding:22px}
  .section{margin-top:44px}
  .section-head h2{font-size:21px}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr}
  .prose h2{font-size:20px}
  .article-card{padding:22px 18px 28px}
  .btn{width:100%}
  .cta-actions{width:100%}
  .header-actions .btn-sm{width:auto}
}

/* roulang page: category1 */
:root{
  --primary:#1E6FF2;
  --primary-600:#1559C9;
  --primary-50:#EEF4FF;
  --accent:#FF8A2B;
  --accent-50:#FFF3E8;
  --ink:#101A2B;
  --ink-2:#4A5875;
  --ink-3:#8A93A6;
  --bg:#F5F7FB;
  --surface:#FFFFFF;
  --line:#E6EAF3;
  --danger:#E5484D;
  --success:#12A150;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(16,26,43,.04),0 8px 24px rgba(16,26,43,.06);
  --shadow-hover:0 14px 32px rgba(31,111,242,.12);
  --shadow-header:0 1px 2px rgba(16,26,43,.05);
  --sp-1:8px;
  --sp-2:16px;
  --sp-3:24px;
  --sp-4:32px;
  --sp-5:48px;
  --sp-6:72px;
  --sp-7:88px;
  --ease:.2s ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.3;font-weight:700;}
p{margin:0;}
a{color:inherit;text-decoration:none;transition:color var(--ease);}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
figure{margin:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background var(--ease),color var(--ease),box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(30,111,242,.22);}
.btn-primary:hover{background:var(--primary-600);box-shadow:0 10px 24px rgba(21,89,201,.28);transform:translateY(-2px);}
.btn-primary:active{background:var(--primary-600);transform:translateY(0);box-shadow:0 4px 10px rgba(21,89,201,.24);}
.btn-ghost{background:var(--surface);color:var(--primary);border:1px solid var(--primary);}
.btn-ghost:hover{background:rgba(30,111,242,.06);transform:translateY(-2px);}
.btn-ghost:active{background:rgba(30,111,242,.12);transform:translateY(0);}
.btn-link{color:var(--primary);font-weight:600;text-decoration:underline;text-underline-offset:3px;padding:0;height:auto;}
.btn-link:hover{color:var(--primary-600);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{background:#E3E8F0;color:#9AA4B5;box-shadow:none;border-color:#E3E8F0;cursor:not-allowed;transform:none;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-header);
}
.header-inner{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(140deg,var(--primary),#5C97F8);
  color:#fff;font-weight:800;font-size:17px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px rgba(30,111,242,.28);
}
.brand-text{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:.2px;}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 14px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--ink-2);
  transition:color var(--ease),background var(--ease);
}
.nav-link:hover{color:var(--primary);background:var(--primary-50);}
.nav-link.active{color:var(--primary);font-weight:700;}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:3px;background:var(--primary);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:40px;width:240px;padding:0 14px;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-pill);
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.search-box i{color:var(--ink-3);font-size:13px;}
.search-box input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;}
.search-box input::placeholder{color:var(--ink-3);}
.search-box:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 4px rgba(30,111,242,.12);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:var(--surface);color:var(--ink);
  align-items:center;justify-content:center;font-size:16px;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary);}
.drawer-only{display:none;}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13.5px;color:var(--ink-3);padding-top:28px;
}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb span{color:#C6CEDA;}
.breadcrumb em{font-style:normal;color:var(--ink);font-weight:600;}

/* ============ 分类页首屏 ============ */
.page-hero{
  background:
    linear-gradient(180deg,rgba(255,255,255,.94),rgba(245,247,251,.96)),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border-bottom:1px solid var(--line);
  padding-bottom:56px;
}
.page-hero-grid{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:48px;align-items:center;padding-top:36px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:var(--radius-pill);
  background:var(--primary-50);color:var(--primary);
  font-size:13px;font-weight:700;letter-spacing:.4px;
}
.eyebrow i{font-size:12px;}
.page-hero h1{
  font-size:44px;font-weight:800;letter-spacing:-.5px;
  margin:20px 0 16px;
}
.lead{font-size:17px;color:var(--ink-2);max-width:540px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:30px;padding:0 14px;border-radius:var(--radius-pill);
  background:var(--surface);border:1px solid var(--line);
  font-size:13px;color:var(--ink-2);
}
.tag.accent{background:var(--accent-50);border-color:#FFDFC2;color:#B75E12;font-weight:600;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.page-hero-figure{
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-card);border:1px solid var(--line);
  background:var(--surface);
}
.page-hero-figure img{width:100%;height:340px;object-fit:cover;}

/* ============ 文档式布局 ============ */
.section{padding:var(--sp-6) 0;}
.section-tight{padding-bottom:var(--sp-5);}
.doc-layout{
  display:grid;grid-template-columns:248px minmax(0,1fr);
  gap:56px;align-items:start;
}
.doc-aside{position:sticky;top:96px;}
.aside-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  padding:22px 20px;
}
.aside-title{
  font-size:12px;font-weight:800;letter-spacing:1.2px;
  color:var(--ink-3);text-transform:uppercase;margin-bottom:14px;
}
.anchor-nav{display:flex;flex-direction:column;}
.anchor-nav a{
  display:block;padding:10px 12px;border-radius:8px;
  font-size:14.5px;color:var(--ink-2);border-left:3px solid transparent;
  transition:color var(--ease),background var(--ease),border-color var(--ease);
}
.anchor-nav a:hover{background:var(--primary-50);color:var(--primary);border-left-color:var(--primary);}
.anchor-nav a.is-current{color:var(--primary);font-weight:700;background:var(--primary-50);border-left-color:var(--primary);}
.aside-note{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13.5px;color:var(--ink-3);line-height:1.75;
}
.aside-note a{color:var(--primary);font-weight:600;}

.doc-body{max-width:820px;}
.doc-block{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  padding:34px 36px;margin-bottom:24px;
}
.doc-h2{
  position:relative;font-size:26px;font-weight:800;
  padding-left:14px;margin-bottom:20px;
}
.doc-h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:4px;background:var(--primary);
}
.doc-h3{font-size:18px;font-weight:700;margin-bottom:8px;}
.doc-p{font-size:16.5px;line-height:1.9;color:var(--ink-2);}
.doc-p + .doc-p{margin-top:14px;}
.doc-h2 + .doc-p{margin-top:0;}
.doc-figure{
  margin-top:24px;border-radius:var(--radius-img);overflow:hidden;
  border:1px solid var(--line);
}
.doc-figure img{width:100%;height:280px;object-fit:cover;}
.doc-figure figcaption{
  padding:12px 16px;background:var(--bg);font-size:13.5px;color:var(--ink-3);
}

.play-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;margin-top:24px;
}
.play-card{
  position:relative;background:var(--bg);
  border:1px solid var(--line);border-radius:14px;
  padding:20px 20px 20px 24px;
  transition:box-shadow var(--ease),transform var(--ease),background var(--ease);
}
.play-card::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:4px;
  border-radius:0 4px 4px 0;background:var(--primary);
}
.play-card:hover{background:var(--surface);transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.play-card p{font-size:14.5px;color:var(--ink-2);line-height:1.8;margin-top:6px;}
.play-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.mini-tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--radius-pill);background:var(--surface);
  border:1px solid var(--line);font-size:12px;color:var(--ink-3);
}

.step-list{margin-top:24px;display:flex;flex-direction:column;gap:0;}
.step-item{
  display:grid;grid-template-columns:56px minmax(0,1fr);
  gap:18px;padding:20px 0;border-bottom:1px dashed var(--line);
}
.step-item:last-child{border-bottom:0;padding-bottom:0;}
.step-num{
  width:48px;height:48px;border-radius:14px;
  background:var(--primary-50);color:var(--primary);
  font-weight:800;font-size:16px;letter-spacing:.5px;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.step-item:nth-child(3) .step-num{background:var(--accent-50);color:#B75E12;}
.step-item p{font-size:15px;color:var(--ink-2);margin-top:6px;line-height:1.85;}

.bullet-list{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
.bullet-list li{
  position:relative;padding-left:24px;
  font-size:15.5px;color:var(--ink-2);line-height:1.85;
}
.bullet-list li::before{
  content:"";position:absolute;left:4px;top:11px;
  width:8px;height:8px;border-radius:50%;
  background:var(--primary);opacity:.85;
}
.bullet-list li strong{color:var(--ink);font-weight:700;}

.spec-list{margin-top:22px;border-top:1px solid var(--line);}
.spec-row{
  display:grid;grid-template-columns:150px minmax(0,1fr);
  gap:18px;padding:16px 0;border-bottom:1px solid var(--line);
}
.spec-row dt{font-size:15px;font-weight:700;color:var(--ink);}
.spec-row dd{margin:0;font-size:15px;color:var(--ink-2);line-height:1.85;}

.qa-list{margin-top:20px;display:flex;flex-direction:column;gap:18px;}
.qa-item{padding-left:16px;border-left:3px solid var(--primary-50);}
.qa-item h3{font-size:16px;margin-bottom:6px;}
.qa-item p{font-size:15px;line-height:1.85;}

.notice{
  display:flex;gap:14px;margin-top:22px;
  background:var(--primary-50);border-radius:14px;padding:18px 20px;
}
.notice i{color:var(--primary);font-size:16px;margin-top:5px;}
.notice p{font-size:14.5px;color:var(--ink-2);line-height:1.8;}

/* ============ 参与 CTA ============ */
.join-section{padding:0 0 var(--sp-6);}
.join-card{
  display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);
  gap:40px;align-items:center;
  background:var(--surface);
  border:1px solid var(--primary);
  border-radius:var(--radius-card);
  box-shadow:0 1px 2px rgba(30,111,242,.06),0 18px 40px rgba(30,111,242,.10);
  padding:44px 46px;
}
.join-card h2{font-size:28px;font-weight:800;margin-bottom:12px;}
.join-card p{font-size:16px;color:var(--ink-2);max-width:520px;}
.join-points{display:flex;flex-direction:column;gap:14px;}
.join-points li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;color:var(--ink-2);line-height:1.7;
}
.join-points i{
  width:24px;height:24px;border-radius:50%;flex-shrink:0;
  background:var(--accent-50);color:var(--accent);
  display:flex;align-items:center;justify-content:center;
  font-size:11px;margin-top:3px;
}

/* ============ 互链 ============ */
.cross-section{padding:0 0 var(--sp-6);}
.section-head{margin-bottom:32px;max-width:680px;}
.section-head h2{font-size:30px;font-weight:800;}
.section-head p{margin-top:12px;font-size:16px;color:var(--ink-2);}
.cross-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.cross-card{
  display:grid;grid-template-columns:150px minmax(0,1fr);
  gap:0;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.cross-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#CFDEFB;}
.cross-card img{width:100%;height:100%;min-height:150px;object-fit:cover;}
.cross-body{padding:22px 24px;}
.cross-body .mini-tag{margin-bottom:10px;}
.cross-body h3{font-size:18px;margin-bottom:8px;}
.cross-body p{font-size:14.5px;color:var(--ink-2);line-height:1.8;}
.cross-more{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:14px;font-size:14px;font-weight:700;color:var(--primary);
}
.cross-more i{font-size:11px;transition:transform var(--ease);}
.cross-card:hover .cross-more i{transform:translateX(4px);}

/* ============ 页脚 ============ */
.site-footer{background:#0E1A2B;color:#A9B4C6;padding:64px 0 28px;margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand .brand-mark{box-shadow:none;}
.fb-name{font-size:17px;font-weight:800;color:#fff;}
.site-footer p{font-size:14px;line-height:1.85;color:#A9B4C6;}
.site-footer p + p{margin-top:10px;}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:#A9B4C6;}
.footer-links a:hover{color:#fff;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding-top:22px;font-size:13px;color:#7D8899;
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .doc-layout{grid-template-columns:220px minmax(0,1fr);gap:40px;}
  .join-card{padding:38px 34px;}
}
@media (max-width:992px){
  .nav-toggle{display:flex;}
  .search-box{display:none;}
  .header-actions .btn-primary.btn-sm{display:none;}
  .main-nav{
    position:absolute;left:0;right:0;top:68px;
    flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:0 16px 28px rgba(16,26,43,.10);
    padding:14px 24px 20px;display:none;
  }
  .main-nav.open{display:flex;}
  .nav-link{padding:13px 12px;font-size:16px;}
  .nav-link.active::after{left:12px;right:auto;width:20px;bottom:8px;}
  .drawer-only{display:block;margin-top:12px;}
  .drawer-search{width:100%;display:flex;background:var(--bg);}
  .drawer-only .btn{width:100%;margin-top:12px;}
  .page-hero-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .page-hero h1{font-size:34px;}
  .page-hero-figure img{height:280px;}
  .doc-layout{grid-template-columns:minmax(0,1fr);gap:28px;}
  .doc-aside{position:static;}
  .anchor-nav{flex-direction:row;flex-wrap:wrap;gap:8px;}
  .anchor-nav a{border-left:0;border:1px solid var(--line);border-radius:var(--radius-pill);padding:8px 14px;font-size:13.5px;}
  .anchor-nav a.is-current{border-color:var(--primary);}
  .doc-body{max-width:100%;}
  .join-card{grid-template-columns:minmax(0,1fr);gap:28px;}
  .cross-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .page-hero{padding-bottom:40px;}
  .page-hero h1{font-size:28px;letter-spacing:0;}
  .lead{font-size:16px;}
  .page-hero-figure img{height:220px;}
  .doc-block{padding:24px 20px;border-radius:14px;}
  .doc-h2{font-size:22px;}
  .doc-p{font-size:16px;}
  .play-grid{grid-template-columns:minmax(0,1fr);}
  .step-item{grid-template-columns:44px minmax(0,1fr);gap:14px;}
  .step-num{width:40px;height:40px;border-radius:12px;font-size:14px;}
  .spec-row{grid-template-columns:minmax(0,1fr);gap:6px;}
  .join-card{padding:28px 22px;}
  .join-card h2{font-size:23px;}
  .section-head h2{font-size:24px;}
  .cross-card{grid-template-columns:minmax(0,1fr);}
  .cross-card img{height:180px;min-height:180px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:560px){
  .hero-actions{gap:10px;}
  .hero-actions .btn{width:100%;}
  .brand-text{font-size:16px;}
  .doc-figure img{height:200px;}
}

/* roulang page: category2 */
:root{
  --primary:#1E6FF2;
  --primary-600:#1559C9;
  --primary-50:#EEF4FF;
  --accent:#FF8A2B;
  --accent-50:#FFF3E8;
  --ink:#101A2B;
  --ink-2:#4A5875;
  --ink-3:#8A93A6;
  --bg:#F5F7FB;
  --surface:#FFFFFF;
  --line:#E6EAF3;
  --danger:#E5484D;
  --success:#12A150;
  --footer-bg:#0E1A2B;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(16,26,43,.04), 0 8px 24px rgba(16,26,43,.06);
  --shadow-hover:0 14px 32px rgba(31,111,242,.12);
  --shadow-head:0 1px 2px rgba(16,26,43,.04);
  --gap:24px;
}

*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

.container{max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- Header ---------- */
.site-header{
  background:var(--surface);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-head);
  position:sticky;
  top:0;
  z-index:80;
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--primary);color:#fff;
  display:grid;place-items:center;
  font-weight:800;font-size:17px;line-height:1;
  box-shadow:0 4px 10px rgba(30,111,242,.28);
}
.brand-text{font-weight:800;font-size:17px;letter-spacing:.2px;color:var(--ink);}

.main-nav{display:flex;align-items:center;gap:6px;margin-right:auto;}
.nav-link{
  position:relative;
  padding:8px 14px;
  border-radius:8px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  transition:color .2s ease, background .2s ease;
}
.nav-link:hover{color:var(--primary);background:var(--primary-50);}
.nav-link.active{color:var(--primary);font-weight:700;}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:-2px;
  transform:translateX(-50%);
  width:18px;height:3px;border-radius:999px;background:var(--primary);
}
.nav-mobile-extra{display:none;}

.header-actions{display:flex;align-items:center;gap:12px;}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:240px;height:40px;
  padding:0 14px;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:999px;
  transition:border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.search-box i{color:var(--ink-3);font-size:13px;}
.search-box input{
  border:0;background:transparent;outline:none;
  font-size:14px;width:100%;color:var(--ink);
}
.search-box input::placeholder{color:var(--ink-3);}
.search-box:focus-within{
  border-color:var(--primary);
  background:var(--surface);
  box-shadow:0 0 0 4px rgba(30,111,242,.12);
}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  background:var(--surface);
  border-radius:10px;
  color:var(--ink-2);
  cursor:pointer;
  transition:border-color .2s ease, color .2s ease;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .2s ease, color .2s ease, box-shadow .2s ease, transform .2s ease, border-color .2s ease;
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(30,111,242,.22);}
.btn-primary:hover{background:var(--primary-600);box-shadow:0 12px 26px rgba(30,111,242,.28);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(30,111,242,.2);}
.btn-ghost{background:var(--surface);color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:var(--primary-50);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-weight:600;font-size:15px;
  border-bottom:1px solid transparent;
  transition:border-color .2s ease, color .2s ease;
}
.btn-text:hover{border-color:var(--primary);}
.btn[disabled],.btn.is-disabled{
  background:var(--line);color:var(--ink-3);border-color:var(--line);
  box-shadow:none;cursor:not-allowed;transform:none;
}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding:60px 0 68px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(255,255,255,.95) 0%, rgba(238,244,255,.9) 62%, rgba(245,247,251,.94) 100%);
}
.page-hero .container{position:relative;z-index:1;}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:14px;color:var(--ink-3);margin-bottom:20px;
}
.breadcrumb a{color:var(--ink-2);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:var(--ink-3);}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:999px;
  background:var(--accent-50);color:#B45309;
  font-size:13px;font-weight:600;margin-bottom:18px;
}
.hero-tag i{font-size:12px;}
.page-hero h1{
  font-size:44px;line-height:1.3;font-weight:800;
  letter-spacing:-.5px;max-width:820px;
}
.hero-lead{
  margin-top:18px;font-size:18px;color:var(--ink-2);max-width:660px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;margin-top:40px;max-width:720px;
}
.stat{
  background:rgba(255,255,255,.86);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:18px 20px;
  box-shadow:var(--shadow-card);
}
.stat-num{
  font-size:26px;font-weight:800;color:var(--ink);
  font-variant-numeric:tabular-nums;letter-spacing:.5px;
}
.stat-num span{font-size:14px;font-weight:600;color:var(--ink-3);margin-left:4px;}
.stat-label{font-size:13px;color:var(--ink-3);margin-top:2px;}

/* ---------- Section base ---------- */
.section{padding:80px 0;}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:36px;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:1px;
  color:var(--primary);background:var(--primary-50);
  padding:5px 12px;border-radius:999px;margin-bottom:14px;
}
.section-head h2{font-size:30px;line-height:1.3;font-weight:800;letter-spacing:-.3px;}
.section-head p{margin-top:12px;color:var(--ink-2);font-size:16px;}

/* ---------- Feature rows ---------- */
.feature-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
  padding:36px 0;
}
.feature-row + .feature-row{border-top:1px solid var(--line);}
.feature-row.reverse .feature-media{order:-1;}
.feature-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:var(--primary-50);color:var(--primary);
  font-weight:800;font-size:15px;margin-bottom:16px;
}
.feature-text h3{font-size:20px;font-weight:800;line-height:1.4;}
.feature-text p{margin-top:12px;color:var(--ink-2);font-size:16px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:999px;
  background:var(--bg);border:1px solid var(--line);
  font-size:12px;color:var(--ink-2);font-weight:600;
}
.tag.tag-accent{background:var(--accent-50);border-color:#FFE0C2;color:#B45309;}
.tag.tag-primary{background:var(--primary-50);border-color:#D8E6FF;color:var(--primary-600);}
.feature-media{
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  border:1px solid var(--line);
  background:var(--surface);
  transition:box-shadow .2s ease, transform .2s ease;
}
.feature-media:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);}
.feature-media img{width:100%;height:300px;object-fit:cover;}

/* ---------- Compare list ---------- */
.compare-list{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.compare-row{
  display:grid;
  grid-template-columns:180px 1fr 150px;
  gap:24px;
  align-items:center;
  padding:22px 26px;
  border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.compare-row:last-child{border-bottom:0;}
.compare-row:hover{background:var(--primary-50);}
.compare-key{font-weight:700;font-size:15px;display:flex;align-items:center;gap:10px;}
.compare-key i{color:var(--primary);font-size:14px;}
.compare-val{color:var(--ink-2);font-size:15px;}
.compare-badge{
  justify-self:end;
  height:28px;padding:0 12px;border-radius:999px;
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:700;
  background:var(--primary-50);color:var(--primary-600);
}
.compare-badge.is-accent{background:var(--accent-50);color:#B45309;}

/* ---------- Checklist ---------- */
.check-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.check-card{
  display:flex;gap:16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-left:4px solid var(--primary);
  border-radius:var(--radius-card);
  padding:22px 24px;
  box-shadow:var(--shadow-card);
  transition:box-shadow .2s ease, transform .2s ease;
}
.check-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);}
.check-card i{
  color:var(--primary);font-size:18px;margin-top:3px;
}
.check-card h3{font-size:16px;font-weight:700;}
.check-card p{margin-top:6px;font-size:15px;color:var(--ink-2);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 4px;
  font-size:16px;font-weight:700;color:var(--ink);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-item summary i{
  color:var(--ink-3);font-size:14px;
  transition:transform .25s ease, color .25s ease;
  flex-shrink:0;
}
.faq-item[open] summary{color:var(--primary);}
.faq-item[open] summary i{transform:rotate(180deg);color:var(--primary);}
.faq-body{
  padding:0 4px 24px;
  font-size:15px;line-height:1.8;color:var(--ink-2);
}

/* ---------- CTA ---------- */
.cta-panel{
  display:grid;
  grid-template-columns:1.4fr 1fr;
  gap:40px;
  align-items:center;
  background:var(--surface);
  border:1px solid #CFE0FF;
  border-radius:var(--radius-card);
  padding:44px 46px;
  box-shadow:var(--shadow-card);
}
.cta-panel h2{font-size:26px;font-weight:800;line-height:1.35;}
.cta-panel p{margin-top:14px;color:var(--ink-2);font-size:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.cta-points li{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;
  border-bottom:1px dashed var(--line);
  font-size:15px;color:var(--ink-2);
}
.cta-points li:last-child{border-bottom:0;}
.cta-points i{color:var(--success);font-size:14px;margin-top:6px;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--footer-bg);
  color:#9FAABD;
  padding:64px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{box-shadow:none;}
.fb-name{color:#fff;font-weight:800;font-size:16px;}
.site-footer p{font-size:14px;line-height:1.9;color:#9FAABD;}
.site-footer p + p{margin-top:10px;}
.footer-title{
  color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;
}
.footer-links li{margin-bottom:10px;}
.footer-links a{
  font-size:14px;color:#9FAABD;
  transition:color .2s ease;
}
.footer-links a:hover{color:#fff;}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7C879B;
}

/* ---------- Responsive ---------- */
@media (max-width:1200px){
  .page-hero h1{font-size:38px;}
  .feature-row{gap:40px;}
}
@media (max-width:992px){
  .main-nav{
    position:absolute;
    top:68px;left:0;right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    margin-right:0;
    padding:14px 24px 22px;
    background:var(--surface);
    border-bottom:1px solid var(--line);
    box-shadow:0 16px 28px rgba(16,26,43,.1);
  }
  .main-nav.open{display:flex;}
  .nav-link{padding:12px 12px;}
  .nav-link.active::after{left:12px;transform:none;}
  .nav-mobile-extra{display:block;padding-top:14px;border-top:1px solid var(--line);margin-top:10px;}
  .nav-mobile-extra .search-box{width:100%;margin-bottom:12px;}
  .nav-mobile-extra .btn{width:100%;}
  .header-actions .search-box{width:190px;}
  .nav-toggle{display:grid;place-items:center;}
  .header-inner{gap:16px;}
  .section{padding:64px 0;}
  .feature-row{grid-template-columns:1fr;gap:28px;padding:32px 0;}
  .feature-row.reverse .feature-media{order:0;}
  .feature-media img{height:260px;}
  .cta-panel{grid-template-columns:1fr;padding:34px 28px;gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .header-actions .search-box{display:none;}
  .page-hero{padding:44px 0 52px;}
  .page-hero h1{font-size:30px;letter-spacing:0;}
  .hero-lead{font-size:16px;}
  .hero-stats{grid-template-columns:1fr;gap:14px;margin-top:30px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:26px;}
  .section-head h2{font-size:24px;}
  .feature-text h3{font-size:18px;}
  .feature-media img{height:220px;}
  .compare-row{grid-template-columns:1fr;gap:8px;padding:20px 22px;}
  .compare-badge{justify-self:start;}
  .check-grid{grid-template-columns:1fr;}
  .cta-panel h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
  .btn{height:46px;}
}
@media (max-width:560px){
  .container{padding:0 16px;}
  .brand-text{font-size:15px;}
  .page-hero h1{font-size:26px;}
  .hero-actions .btn{width:100%;}
  .btn{padding:0 18px;}
  .cta-actions .btn{width:100%;}
  .feature-media img{height:190px;}
  .stat-num{font-size:22px;}
}