/* roulang page: index */
:root{
  --brand-900:#143B38;
  --brand-700:#1F5B56;
  --brand-600:#2E6E6B;
  --brand-100:#E4EFEC;
  --brand-50:#F1F7F5;
  --accent-600:#D97A4E;
  --accent-100:#FBEDE5;
  --ink:#1B2422;
  --ink-2:#4A5654;
  --line:#E3DFD8;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(20,40,38,.05),0 8px 24px rgba(20,40,38,.06);
  --shadow-2:0 2px 4px rgba(20,40,38,.06),0 16px 32px rgba(20,40,38,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:'PingFang SC','HarmonyOS Sans SC','Noto Sans SC','Microsoft YaHei',system-ui,sans-serif;
  font-size:16px;line-height:1.85;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4{margin:0 0 .55em;font-weight:700;color:var(--ink);letter-spacing:-.01em;line-height:1.3}
h1{font-size:42px}
h2{font-size:30px}
h3{font-size:20px}
p{margin:0 0 1.1em}
ul,dl,ol{margin:0;padding:0}
li{list-style:none}
button{font-family:inherit}
::selection{background:var(--brand-100);color:var(--brand-900)}

.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}
.sec{padding:80px 0}
.sec--surface{background:var(--surface)}
.sec--tight{padding:56px 0}
.sec-head{margin-bottom:40px;max-width:760px}
.sec-head .mark{width:28px;height:3px;background:var(--accent-600);border-radius:2px;margin-bottom:16px}
.sec-head__row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.sec-head p{margin:12px 0 0;color:var(--ink-2);font-size:15px}
.link-more{font-size:14px;font-weight:600;white-space:nowrap;border-bottom:1px solid transparent;transition:border-color .2s ease,color .2s ease}
.link-more:hover{text-decoration:none;border-bottom-color:var(--brand-600)}

/* ---------- 按钮与标签 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
  text-decoration:none;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn--primary{background:var(--brand-600);color:#fff}
.btn--primary:hover{background:var(--brand-700);color:#fff;box-shadow:var(--shadow-1)}
.btn--ghost{background:#fff;color:var(--brand-600);border-color:var(--brand-600)}
.btn--ghost:hover{background:var(--brand-50);color:var(--brand-700)}
.btn--accent{background:var(--accent-600);color:#fff}
.btn--accent:hover{background:#c56a40;color:#fff;box-shadow:var(--shadow-1)}
.btn--sm{height:38px;padding:0 18px;font-size:14px;border-radius:999px}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{
  outline:3px solid var(--brand-100);outline-offset:2px;border-color:var(--brand-600);
}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-700);
  font-size:13px;font-weight:600;line-height:1.6;
}
.chip--accent{background:var(--accent-100);color:var(--accent-600);font-size:11px;padding:4px 10px;letter-spacing:.02em}

/* ---------- 页头 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.header-inner{
  max-width:1180px;margin:0 auto;padding:0 24px;height:68px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--brand-900);letter-spacing:-.01em}
.logo:hover{text-decoration:none;color:var(--brand-700)}
.logo svg{flex:0 0 auto}
.nav-tabs{display:flex;align-items:center;gap:6px;flex-wrap:nowrap}
.nav-tabs a{
  display:inline-flex;align-items:center;height:36px;padding:0 15px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--ink-2);border:1px solid var(--line);background:transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.nav-tabs a:hover{background:var(--brand-50);color:var(--brand-700);text-decoration:none;border-color:var(--brand-100)}
.nav-tabs a.is-active{background:var(--brand-100);color:var(--brand-700);border-color:transparent;font-weight:600}
.header-cta{display:inline-flex;align-items:center;height:40px;padding:0 20px;border-radius:999px;background:var(--brand-600);color:#fff;font-size:14px;font-weight:600;transition:background-color .2s ease,transform .2s ease}
.header-cta:hover{background:var(--brand-700);color:#fff;text-decoration:none;transform:translateY(-1px)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-700);position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-700);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{
  display:none;position:fixed;left:0;right:0;top:60px;bottom:0;z-index:55;
  background:#fff;padding:20px 20px 40px;overflow-y:auto;border-top:1px solid var(--line);
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{
  display:block;padding:14px 16px;border-radius:10px;font-size:15px;font-weight:500;
  color:var(--ink);border-left:3px solid transparent;
}
.mobile-drawer a:hover{background:var(--brand-50);text-decoration:none}
.mobile-drawer a.is-active{color:var(--brand-700);font-weight:600;border-left-color:var(--brand-600);background:var(--brand-50)}
.mobile-drawer .drawer-cta{margin-top:16px;width:100%}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,var(--brand-50) 0%,var(--bg) 100%);padding:72px 0 64px}
.hero::before{
  content:"";position:absolute;right:-80px;top:-60px;width:420px;height:420px;
  background:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'><path d='M20 120c20-30 50-30 70-14 8-24 38-32 56-16 22-30 62-12 62 20' fill='none' stroke='%232E6E6B' stroke-width='3' stroke-linecap='round'/><circle cx='140' cy='150' r='26' fill='none' stroke='%232E6E6B' stroke-width='3'/></svg>") no-repeat center/contain;
  opacity:.08;pointer-events:none;
}
.hero-grid{position:relative;z-index:1}
.hero h1{margin-bottom:18px}
.hero-sub{font-size:17px;color:var(--ink-2);max-width:520px;margin-bottom:10px}
.hero-note{font-size:14px;color:var(--ink-2);max-width:520px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-figure{position:relative;border-radius:16px;overflow:hidden;border:1px solid var(--line);background:var(--brand-100);box-shadow:var(--shadow-1)}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-figure figcaption{
  position:absolute;left:14px;bottom:14px;right:14px;
  background:rgba(20,59,56,.82);color:#fff;font-size:12px;
  padding:8px 12px;border-radius:8px;line-height:1.6;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}
.hero-badges span{
  display:inline-flex;align-items:center;gap:7px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:7px 14px;font-size:13px;color:var(--ink-2);
}
.hero-badges span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-600);flex:0 0 auto}

/* ---------- 栅格辅助 ---------- */
.grid-x.gutter-24{margin-left:-12px;margin-right:-12px}
.grid-x.gutter-24>.cell{padding-left:12px;padding-right:12px}
.grid-x.row-gap>.cell{margin-bottom:24px}

/* ---------- 步骤条 ---------- */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px}
.steps::before{content:"";position:absolute;top:20px;left:26px;right:26px;height:1px;background:var(--line)}
.step{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.step-num{
  position:relative;z-index:1;width:40px;height:40px;border-radius:50%;
  border:1px solid var(--accent-600);background:var(--accent-100);color:var(--accent-600);
  display:grid;place-items:center;font-size:15px;font-weight:600;margin-bottom:16px;
}
.step h3{font-size:18px;margin-bottom:8px}
.step p{font-size:14px;color:var(--ink-2);margin:0;line-height:1.75}

/* ---------- 轮播 ---------- */
.carousel-wrap{max-width:980px;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:32px;box-shadow:var(--shadow-1)}
.orbit-custom .orbit-container{background:var(--brand-100);border-radius:var(--radius-img);overflow:hidden;margin:0}
.orbit-custom .orbit-slide{display:none}
.orbit-custom .orbit-slide.is-active{display:block}
.orbit-custom .orbit-image{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img)}
.orbit-custom .orbit-figure{margin:0;position:relative}
.orbit-custom .orbit-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 18px;
  background:linear-gradient(180deg,rgba(20,59,56,0) 0%,rgba(20,59,56,.78) 100%);
  color:#fff;font-size:13px;line-height:1.6;
}
.orbit-custom .orbit-controls{display:flex;justify-content:space-between;position:absolute;top:50%;left:0;right:0;transform:translateY(-50%);padding:0 12px;z-index:3}
.orbit-custom .orbit-previous,
.orbit-custom .orbit-next{
  width:34px;height:34px;border-radius:50%;background:#fff;border:1px solid var(--line);
  color:var(--brand-700);display:grid;place-items:center;cursor:pointer;
  transition:background-color .2s ease,transform .2s ease;
}
.orbit-custom .orbit-previous:hover,.orbit-custom .orbit-next:hover{background:var(--brand-50);transform:scale(1.05)}
.orbit-custom .orbit-wrapper{position:relative}
.orbit-custom .orbit-bullets{display:flex;justify-content:center;gap:8px;margin-top:20px}
.orbit-custom .orbit-bullets button{
  width:8px;height:8px;border-radius:999px;background:var(--line);border:0;padding:0;cursor:pointer;
  font-size:0;line-height:0;transition:width .2s ease,background-color .2s ease;
}
.orbit-custom .orbit-bullets button.is-active{width:20px;background:var(--brand-600)}
.orbit-custom .orbit-bullets button:hover{background:var(--brand-600)}

/* ---------- 环境要求 ---------- */
.env-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;height:100%;transition:transform .2s ease,box-shadow .2s ease;
}
.env-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.env-card__head{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.env-card__head svg{flex:0 0 auto;color:var(--brand-600)}
.env-card__head h3{margin:0;font-size:16px;font-weight:600}
.env-card dl{margin:0 0 18px}
.env-card dl>div{display:flex;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px dashed var(--line)}
.env-card dl>div:last-child{border-bottom:0}
.env-card dt{font-size:14px;color:var(--ink-2);flex:0 0 auto}
.env-card dd{margin:0;font-size:15px;color:var(--ink);text-align:right}
.env-card__chips{display:flex;flex-wrap:wrap;gap:8px;padding-top:16px;border-top:1px solid var(--line)}

/* ---------- 评价墙 ---------- */
.quote-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;height:100%;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.quote-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.quote-mark{font-size:34px;line-height:1;color:var(--accent-600);font-weight:700;margin-bottom:6px}
.quote-card p{font-size:15px;color:var(--ink);line-height:1.8;margin-bottom:20px}
.quote-meta{display:flex;align-items:center;gap:10px;padding-top:16px;border-top:1px solid var(--line)}
.avatar{
  width:36px;height:36px;border-radius:50%;background:var(--brand-100);color:var(--brand-700);
  display:grid;place-items:center;font-size:14px;font-weight:600;flex:0 0 auto;
}
.quote-meta .who{font-size:14px;font-weight:600;color:var(--ink);line-height:1.4}
.quote-meta .role{font-size:12px;color:var(--ink-2);line-height:1.4}

/* ---------- 入口 CTA 横条 ---------- */
.entry-band{
  position:relative;overflow:hidden;
  background:var(--brand-100);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:56px 0;
}
.entry-band::after{
  content:"";position:absolute;left:-60px;bottom:-90px;width:320px;height:320px;
  background:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'><path d='M30 90c22-34 54-34 76-16 10-26 42-34 62-18' fill='none' stroke='%232E6E6B' stroke-width='3' stroke-linecap='round'/><path d='M70 150h60' stroke='%232E6E6B' stroke-width='3' stroke-linecap='round'/></svg>") no-repeat center/contain;
  opacity:.08;pointer-events:none;
}
.entry-band__inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.entry-band h2{font-size:28px;margin-bottom:10px}
.entry-band p{color:var(--ink-2);font-size:15px;margin:0}
.entry-band__actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.qr-box{
  width:96px;height:96px;border:1px dashed var(--brand-600);border-radius:12px;
  background:rgba(255,255,255,.55);display:grid;place-items:center;text-align:center;
  font-size:11px;color:var(--brand-700);line-height:1.5;padding:8px;
}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  color:inherit;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--brand-600);text-decoration:none}
.news-card:hover .news-card__title{color:var(--brand-700)}
.news-card__cover{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--brand-100)}
.news-card__body{padding:20px;display:flex;flex-direction:column;flex:1}
.news-card__title{font-size:18px;font-weight:600;line-height:1.5;margin:0 0 10px;color:var(--ink);transition:color .2s ease;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__excerpt{font-size:14px;color:var(--ink-2);line-height:1.7;margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--ink-2)}
.news-card--feature{grid-column:span 2;flex-direction:row}
.news-card--feature .news-card__deco{
  flex:0 0 42%;background:var(--brand-900);position:relative;overflow:hidden;
  display:flex;align-items:flex-end;padding:24px;
}
.news-card--feature .news-card__deco::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(46,110,107,.85) 0%,rgba(20,59,56,.95) 100%);
}
.news-card--feature .news-card__deco::after{
  content:"";position:absolute;right:-40px;top:-40px;width:200px;height:200px;border-radius:50%;
  border:1px solid rgba(255,255,255,.18);
}
.news-card--feature .news-card__deco span{position:relative;z-index:1;color:rgba(255,255,255,.9);font-size:13px;letter-spacing:.08em}
.news-card--feature .news-card__body{padding:28px}
.news-card--feature .news-card__title{font-size:21px}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:48px 24px;text-align:center;background:var(--surface);
}
.empty-state svg{color:var(--brand-600);margin-bottom:14px}
.empty-state p{margin:0 0 6px;font-size:16px;font-weight:600;color:var(--ink)}
.empty-state span{display:block;font-size:14px;color:var(--ink-2);margin-bottom:20px}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:background-color .2s ease,border-color .2s ease}
.faq-item:hover{background:var(--brand-50)}
.faq-item.is-open{background:var(--surface);border-color:var(--brand-100)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;background:none;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;line-height:1.6;
}
.faq-item.is-open .faq-q{color:var(--brand-700)}
.faq-icon{flex:0 0 auto;width:24px;height:24px;display:grid;place-items:center;color:var(--brand-600);font-size:18px;font-weight:600;line-height:1}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a p{margin:0;padding:0 20px 18px;font-size:15px;line-height:1.85;color:var(--ink-2)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);padding:64px 0 28px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.site-footer h4{font-size:16px;font-weight:600;color:#fff;margin:0 0 16px}
.site-footer p{color:rgba(255,255,255,.72);line-height:1.85;margin:0 0 12px}
.site-footer a{color:rgba(255,255,255,.72);display:inline-block;padding:5px 0;transition:color .2s ease}
.site-footer a:hover{color:#fff;text-decoration:none}
.footer-logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:14px}
.footer-logo:hover{color:#fff}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.62)}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .nav-tabs{display:none}
  .header-cta{display:none}
  .nav-toggle{display:flex}
  .header-inner{height:60px}
  h1{font-size:34px}
  h2{font-size:26px}
  .sec{padding:64px 0}
  .hero{padding:56px 0 48px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .steps::before{display:none}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .news-card--feature{grid-column:span 2}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero-figure img{aspect-ratio:16/10}
  .carousel-wrap{padding:24px}
}
@media screen and (max-width:767px){
  .container{padding:0 20px}
  .header-inner{padding:0 20px}
  h1{font-size:28px;line-height:1.32}
  h2{font-size:22px}
  h3{font-size:18px}
  .sec{padding:48px 0}
  .hero{padding:40px 0 40px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{flex:1 1 auto;padding:0 18px}
  .hero-figure img{aspect-ratio:4/3}
  .steps{grid-template-columns:1fr}
  .step{padding:20px}
  .news-grid{grid-template-columns:1fr}
  .news-card--feature{grid-column:span 1;flex-direction:column}
  .news-card--feature .news-card__deco{flex:0 0 auto;height:120px;padding:18px}
  .news-card--feature .news-card__body{padding:20px}
  .news-card--feature .news-card__title{font-size:19px}
  .carousel-wrap{padding:16px}
  .orbit-custom .orbit-figure figcaption{font-size:12px;padding:10px 12px}
  .entry-band{padding:40px 0}
  .entry-band h2{font-size:22px}
  .entry-band__inner{flex-direction:column;align-items:flex-start;gap:24px}
  .qr-box{width:84px;height:84px}
  .faq-q{font-size:15px;padding:12px 16px}
  .faq-a p{padding:0 16px 16px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .env-card dl>div{flex-direction:column;gap:2px}
  .env-card dd{text-align:left}
  .grid-x.row-gap>.cell{margin-bottom:16px}
  .stagger>.cell{margin-top:0!important}
}

/* roulang page: category1 */
:root{
  --brand-900:#143B38;
  --brand-700:#1F5B56;
  --brand-600:#2E6E6B;
  --brand-100:#E4EFEC;
  --brand-50:#F1F7F5;
  --accent-600:#D97A4E;
  --accent-100:#FBEDE5;
  --ink:#1B2422;
  --ink-2:#4A5654;
  --line:#E3DFD8;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(20,40,38,.05),0 8px 24px rgba(20,40,38,.06);
  --shadow-2:0 2px 4px rgba(20,40,38,.06),0 16px 32px rgba(20,40,38,.10);
  --font:'PingFang SC','HarmonyOS Sans SC','Noto Sans SC','Microsoft YaHei',system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);object-fit:cover;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4{margin:0 0 .6em;color:var(--ink);letter-spacing:-.01em;line-height:1.3;font-weight:700;}
h1{font-size:42px;line-height:1.25;}
h2{font-size:30px;}
h3{font-size:20px;font-weight:600;}
p{margin:0 0 1.1em;line-height:1.85;}
ul,ol,dl{margin:0;padding:0;}
li{list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 3px var(--brand-100),0 0 0 4px var(--brand-600);border-radius:8px;}
.container{max-width:1180px;margin:0 auto;padding:0 24px;width:100%;}
.section{padding:80px 0;}
.section--surface{background:var(--surface);}
.section--tight{padding:56px 0;}
.eyebrow{display:inline-block;width:28px;height:4px;border-radius:999px;background:var(--accent-600);margin-bottom:14px;}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head p{color:var(--ink-2);margin-bottom:0;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--surface);
  border-bottom:1px solid var(--line);transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.header-inner{display:flex;align-items:center;gap:20px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);font-weight:700;font-size:17px;letter-spacing:.01em;}
.brand:hover{text-decoration:none;color:var(--brand-700);}
.brand svg{flex:0 0 auto;}
.nav-tabs{display:flex;align-items:center;gap:8px;margin:0 auto;flex-wrap:wrap;}
.nav-tabs a{
  display:inline-block;padding:7px 16px;border-radius:999px;font-size:14.5px;
  color:var(--ink-2);border:1px solid var(--line);background:transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;white-space:nowrap;
}
.nav-tabs a:hover{background:var(--brand-50);color:var(--brand-700);text-decoration:none;border-color:var(--brand-100);}
.nav-tabs a.is-active{background:var(--brand-100);color:var(--brand-700);border-color:transparent;font-weight:600;}
.header-cta{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);background:var(--surface);
  border-radius:10px;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-drawer{display:none;border-top:1px solid var(--line);background:var(--surface);padding:12px 0 20px;}
.nav-drawer a{
  display:block;padding:12px 24px;color:var(--ink-2);font-size:15px;
  border-left:3px solid transparent;
}
.nav-drawer a:hover{background:var(--brand-50);text-decoration:none;color:var(--brand-700);}
.nav-drawer a.is-active{border-left-color:var(--brand-600);color:var(--brand-700);font-weight:600;background:var(--brand-50);}
.nav-drawer.is-open{display:block;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-btn);
  font-size:15.5px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px);}
.btn-primary{background:var(--brand-600);color:#fff;}
.btn-primary:hover{background:var(--brand-700);color:#fff;}
.btn-ghost{background:var(--surface);color:var(--brand-600);border-color:var(--brand-600);}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-700);}
.btn-accent{background:var(--accent-600);color:#fff;}
.btn-accent:hover{background:#c2683f;color:#fff;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- breadcrumb ---------- */
.crumb{padding:20px 0 0;font-size:13.5px;color:var(--ink-2);}
.crumb ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:var(--line);}
.crumb a{color:var(--ink-2);}
.crumb a:hover{color:var(--brand-700);}
.crumb .current{color:var(--ink);font-weight:600;}

/* ---------- hero ---------- */
.page-hero{padding:36px 0 20px;}
.hero-grid{display:flex;flex-wrap:wrap;gap:40px;align-items:center;}
.hero-copy{flex:1 1 520px;min-width:0;}
.hero-media{flex:0 0 380px;max-width:100%;}
.hero-media img{width:100%;aspect-ratio:4/3;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-1);background:var(--brand-100);}
.hero-copy h1{margin-bottom:.4em;}
.hero-lead{font-size:17px;color:var(--ink-2);max-width:600px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-700);font-size:12.5px;font-weight:600;
}
.chip--accent{background:var(--accent-100);color:var(--accent-600);}
.chip--line{background:transparent;color:var(--ink-2);border:1px solid var(--line);font-weight:500;}

/* ---------- steps timeline layout ---------- */
.layout-split{display:flex;gap:40px;align-items:flex-start;flex-wrap:wrap;}
.col-main{flex:1 1 620px;min-width:0;}
.col-side{flex:0 0 340px;max-width:100%;}
.timeline{position:relative;padding-left:0;}
.tl-item{position:relative;display:flex;gap:18px;padding-bottom:32px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:19px;top:44px;bottom:0;width:1px;background:var(--line);
}
.tl-item:last-child::before{display:none;}
.tl-num{
  flex:0 0 40px;width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--accent-100);border:1px solid var(--accent-600);
  color:var(--accent-600);font-weight:600;font-size:15px;position:relative;z-index:1;
}
.tl-body{flex:1 1 auto;min-width:0;padding-top:2px;}
.tl-body h3{margin-bottom:6px;font-size:18px;}
.tl-body p{margin-bottom:8px;color:var(--ink-2);font-size:15px;line-height:1.8;}
.tl-note{font-size:13.5px;color:var(--ink-2);background:var(--brand-50);border-left:3px solid var(--brand-600);border-radius:8px;padding:10px 14px;margin:0;}

/* ---------- sticky requirement card ---------- */
.side-sticky{position:sticky;top:92px;}
.req-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:24px;}
.req-head{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.req-head svg{flex:0 0 auto;}
.req-head h3{margin:0;font-size:16px;}
.req-list dt{font-size:13.5px;color:var(--ink-2);padding-top:12px;}
.req-list dd{
  margin:0;font-size:15px;color:var(--ink);padding-bottom:12px;
  border-bottom:1px dashed var(--line);
}
.req-list dd:last-child{border-bottom:none;padding-bottom:0;}
.req-foot{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.req-tip{font-size:13px;color:var(--ink-2);margin:14px 0 0;}

/* ---------- device cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--brand-100);}
.card h3{font-size:18px;margin-bottom:10px;}
.card p{font-size:14.5px;color:var(--ink-2);margin-bottom:14px;}
.card p:last-child{margin-bottom:0;}
.card-icon{
  width:44px;height:44px;border-radius:12px;background:var(--brand-100);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.mini-list li{
  font-size:14px;color:var(--ink-2);padding-left:18px;position:relative;line-height:1.8;
}
.mini-list li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--accent-600);
}

/* ---------- alert bar ---------- */
.alert-bar{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--accent-100);border:1px solid #F3D9CA;border-radius:var(--radius-card);
  padding:20px 24px;
}
.alert-bar svg{flex:0 0 auto;margin-top:3px;}
.alert-bar h3{font-size:16px;margin-bottom:6px;color:#8A4A2A;}
.alert-bar p{margin:0;font-size:14.5px;color:#6E4531;line-height:1.8;}

/* ---------- faq ---------- */
.faq-list{max-width:860px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  margin-bottom:12px;overflow:hidden;transition:background .2s ease,border-color .2s ease;
}
.faq-item:hover{background:var(--brand-50);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;background:transparent;border:0;cursor:pointer;
  text-align:left;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q .sign{
  flex:0 0 auto;width:22px;height:22px;position:relative;
}
.faq-q .sign::before,.faq-q .sign::after{
  content:"";position:absolute;background:var(--brand-600);border-radius:2px;transition:transform .2s ease,opacity .2s ease;
}
.faq-q .sign::before{left:0;top:10px;width:22px;height:2px;}
.faq-q .sign::after{left:10px;top:0;width:2px;height:22px;}
.faq-item.is-open .faq-q{color:var(--brand-700);}
.faq-item.is-open .faq-q .sign::after{transform:rotate(90deg);opacity:0;}
.faq-a{display:none;padding:0 20px 18px;font-size:15px;color:var(--ink-2);line-height:1.85;}
.faq-item.is-open .faq-a{display:block;}

/* ---------- cta ---------- */
.cta-band{
  background:var(--brand-900);border-radius:18px;color:#fff;padding:48px 40px;
  display:flex;gap:32px;align-items:center;justify-content:space-between;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;bottom:-60px;width:260px;height:200px;
  background:radial-gradient(circle at 50% 50%,rgba(228,239,236,.14),transparent 70%);
  pointer-events:none;
}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.78);margin:0;font-size:15px;max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-actions .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}
.back-row{display:flex;justify-content:center;margin-top:36px;}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:#fff;padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;}
.footer-logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:14px;}
.footer-logo:hover{color:#fff;text-decoration:none;}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:14px;font-weight:600;}
.site-footer p{color:rgba(255,255,255,.72);font-size:14px;line-height:1.8;margin-bottom:12px;}
.site-footer a{color:rgba(255,255,255,.72);font-size:14px;display:block;padding:5px 0;}
.site-footer a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:20px;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  h1{font-size:34px;}
  h2{font-size:26px;}
  .section{padding:64px 0;}
  .nav-tabs{display:none;}
  .nav-toggle{display:flex;}
  .hero-media{flex:0 0 300px;}
  .col-side{flex:0 0 300px;}
  .side-sticky{position:static;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .header-inner{height:60px;}
  h1{font-size:28px;}
  h2{font-size:22px;}
  h3{font-size:18px;}
  .section{padding:48px 0;}
  .section--tight{padding:40px 0;}
  .hero-grid{gap:24px;}
  .hero-copy,.hero-media{flex:1 1 100%;}
  .hero-media img{aspect-ratio:16/10;}
  .card-grid{grid-template-columns:1fr;gap:16px;}
  .card{padding:20px;}
  .btn{height:46px;padding:0 22px;font-size:15px;}
  .cta-band{padding:32px 22px;border-radius:14px;}
  .cta-band h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .tl-item{gap:14px;}
  .faq-q{font-size:15px;padding:12px 16px;}
  .faq-a{padding:0 16px 16px;font-size:14.5px;}
  .alert-bar{padding:16px;flex-direction:column;gap:10px;}
}
@media (max-width:520px){
  .hero-lead{font-size:15.5px;}
  .tag-row{gap:8px;}
  .chip{font-size:12px;padding:4px 12px;}
}

/* roulang page: article */
:root{
  --brand-900:#143B38;
  --brand-700:#1F5B56;
  --brand-600:#2E6E6B;
  --brand-100:#E4EFEC;
  --brand-50:#F1F7F5;
  --accent-600:#D97A4E;
  --accent-100:#FBEDE5;
  --ink:#1B2422;
  --ink-2:#4A5654;
  --line:#E3DFD8;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --shadow-1:0 1px 2px rgba(20,40,38,.05), 0 8px 24px rgba(20,40,38,.06);
  --shadow-2:0 2px 4px rgba(20,40,38,.06), 0 16px 32px rgba(20,40,38,.10);
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:'PingFang SC','HarmonyOS Sans SC','Noto Sans SC','Microsoft YaHei',system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-700);}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.01em;}
p{margin:0 0 1em;}
ul,ol{margin:0 0 1em;padding-left:1.3em;}
button{font-family:inherit;}
:focus-visible{outline:3px solid var(--brand-100);outline-offset:1px;border-color:var(--brand-600);}
.container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:68px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:var(--brand-900);
  white-space:nowrap;
  flex:0 0 auto;
}
.logo:hover{color:var(--brand-700);}
.logo svg{flex:0 0 auto;}
.nav-tabs{
  display:flex;
  align-items:center;
  gap:6px;
  margin:0 auto;
  flex-wrap:nowrap;
}
.nav-tabs a{
  display:inline-block;
  padding:8px 16px;
  font-size:14px;
  line-height:1.4;
  color:var(--ink-2);
  border:1px solid var(--line);
  border-radius:999px;
  background:transparent;
  white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.nav-tabs a:hover{background:var(--brand-50);color:var(--brand-700);border-color:var(--brand-100);}
.nav-tabs a.is-active{
  background:var(--brand-100);
  color:var(--brand-700);
  border-color:transparent;
  font-weight:600;
}
.header-cta{flex:0 0 auto;display:flex;align-items:center;gap:12px;}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:48px;
  padding:0 28px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  border-radius:var(--radius-btn);
  cursor:pointer;
  transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--brand-600);color:#fff;}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-ghost{background:#fff;color:var(--brand-600);border-color:var(--brand-600);}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-700);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;border-radius:9px;}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  cursor:pointer;
  color:var(--brand-700);
}
.mobile-nav{
  display:none;
  position:fixed;
  left:0;right:0;top:60px;
  z-index:59;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
  padding:10px 20px 20px;
}
.mobile-nav.is-open{display:block;}
.mobile-nav a{
  display:block;
  padding:13px 14px;
  font-size:15px;
  color:var(--ink-2);
  border-radius:10px;
  border-bottom:1px solid var(--line);
}
.mobile-nav a:last-child{border-bottom:none;}
.mobile-nav a:hover{background:var(--brand-50);color:var(--brand-700);}
.mobile-nav a.is-active{
  color:var(--brand-700);
  font-weight:600;
  background:var(--brand-50);
  border-left:3px solid var(--brand-600);
}
.mobile-nav .drawer-cta{margin-top:14px;display:flex;}

/* ---------- breadcrumb ---------- */
.breadcrumb-bar{
  background:var(--surface);
  border-bottom:1px solid var(--line);
  padding:13px 0;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-2);
  flex-wrap:nowrap;
  overflow:hidden;
}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{
  color:var(--ink-2);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  max-width:46%;
}

/* ---------- article hero ---------- */
.article-hero{
  position:relative;
  padding:60px 0 88px;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.article-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(105deg,rgba(20,59,56,.95) 0%,rgba(20,59,56,.86) 55%,rgba(31,91,86,.74) 100%);
}
.article-hero .container{position:relative;z-index:1;}
.hero-chip{
  display:inline-block;
  padding:5px 14px;
  font-size:12px;
  letter-spacing:.04em;
  border-radius:999px;
  background:rgba(255,255,255,.16);
  color:#fff;
  margin-bottom:18px;
}
.article-hero h1{
  color:#fff;
  font-size:42px;
  line-height:1.25;
  letter-spacing:-.01em;
  max-width:900px;
}
.article-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
  margin-top:20px;
  font-size:13px;
  color:rgba(255,255,255,.78);
}
.article-meta .dot{width:1px;height:12px;background:rgba(255,255,255,.34);display:inline-block;}
.article-meta time{color:rgba(255,255,255,.88);}

/* ---------- article layout ---------- */
.main-wrap{padding-bottom:80px;}
.article-card{
  position:relative;
  z-index:2;
  margin-top:-44px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:48px;
}
.article-inner{max-width:800px;margin:0 auto;}
.article-body{
  font-size:17px;
  line-height:1.95;
  color:var(--ink);
  word-break:break-word;
}
.article-body p{margin:0 0 1.1em;}
.article-body h2{
  font-size:26px;
  line-height:1.4;
  margin:40px 0 16px;
  padding-left:14px;
  border-left:3px solid var(--brand-600);
}
.article-body h3{font-size:20px;line-height:1.5;margin:32px 0 12px;}
.article-body h4{font-size:17px;margin:26px 0 10px;}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.2em;}
.article-body li{line-height:1.8;margin-bottom:6px;}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--brand-700);}
.article-body img{border-radius:var(--radius-img);margin:22px 0;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;text-align:center;color:var(--ink-2);margin-top:8px;}
.article-body blockquote{
  margin:24px 0;
  padding:18px 22px;
  background:var(--brand-50);
  border-left:3px solid var(--accent-600);
  border-radius:8px;
  color:var(--ink-2);
  font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:22px 0;
  font-size:15px;
}
.article-body th,.article-body td{
  border:1px solid var(--line);
  padding:10px 14px;
  text-align:left;
  vertical-align:top;
}
.article-body th{background:var(--brand-50);font-weight:600;}
.article-body code{
  background:var(--brand-50);
  color:var(--brand-700);
  padding:2px 6px;
  border-radius:6px;
  font-size:14px;
}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0;}

.notice-box{
  margin-top:36px;
  padding:18px 22px;
  border-radius:12px;
  background:var(--brand-50);
  border:1px solid var(--brand-100);
  font-size:14px;
  line-height:1.8;
  color:var(--ink-2);
}
.notice-box strong{color:var(--brand-700);}

.empty-state{
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
  padding:48px 24px;
  text-align:center;
  background:var(--surface);
}
.empty-state svg{margin:0 auto 14px;}
.empty-state h2{font-size:20px;margin-bottom:8px;}
.empty-state p{font-size:14px;color:var(--ink-2);margin-bottom:20px;}

/* ---------- post nav ---------- */
.post-nav{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin-top:40px;
  padding-top:32px;
  border-top:1px solid var(--line);
}
.post-nav a{
  display:block;
  padding:16px 20px;
  border:1px solid var(--line);
  border-radius:12px;
  color:var(--ink);
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.post-nav a:hover{
  border-color:var(--brand-600);
  background:var(--brand-50);
  color:var(--brand-700);
  transform:translateY(-2px);
}
.post-nav span{
  display:block;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--ink-2);
  margin-bottom:6px;
}
.post-nav strong{font-size:15px;font-weight:600;line-height:1.5;}
.post-nav .align-right{text-align:right;}

.back-row{display:flex;justify-content:center;margin-top:36px;}

/* ---------- sections ---------- */
.section{padding:64px 0 0;}
.section-head{margin-bottom:28px;}
.section-kicker{
  display:block;
  width:28px;
  height:3px;
  border-radius:2px;
  background:var(--accent-600);
  margin-bottom:14px;
}
.section-head h2{font-size:30px;line-height:1.3;}
.section-head p{margin-top:10px;font-size:15px;color:var(--ink-2);max-width:720px;}

.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.post-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  color:inherit;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-2);
  border-color:var(--brand-600);
  color:inherit;
}
.post-card__thumb{
  aspect-ratio:16/9;
  background:var(--brand-100);
  overflow:hidden;
}
.post-card__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.post-card:hover .post-card__thumb img{transform:scale(1.03);}
.post-card__body{padding:22px;display:flex;flex-direction:column;flex:1;}
.post-card__title{font-size:18px;font-weight:600;line-height:1.5;margin-bottom:10px;}
.post-card:hover .post-card__title{color:var(--brand-700);}
.post-card__desc{
  font-size:14px;
  line-height:1.7;
  color:var(--ink-2);
  margin-bottom:16px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-card__meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:var(--ink-2);
}
.tag{
  display:inline-block;
  padding:3px 10px;
  font-size:11px;
  line-height:1.6;
  border-radius:999px;
  background:var(--accent-100);
  color:var(--accent-600);
  white-space:nowrap;
}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  margin-top:72px;
  padding:44px;
  border-radius:18px;
  background:var(--brand-900);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-40px;
  bottom:-60px;
  width:320px;
  height:320px;
  background:radial-gradient(circle at center,rgba(228,239,236,.16),rgba(228,239,236,0) 68%);
  pointer-events:none;
}
.cta-band__text{position:relative;z-index:1;max-width:640px;}
.cta-band h2{color:#fff;font-size:28px;line-height:1.35;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.76);font-size:15px;margin-bottom:0;}
.cta-band__actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap;}
.cta-band .btn-primary{background:var(--accent-600);}
.cta-band .btn-primary:hover{background:#c96b40;}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--brand-900);
  color:rgba(255,255,255,.72);
  padding:56px 0 24px;
  margin-top:80px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:32px;
}
.footer-grid h4{
  color:#fff;
  font-size:16px;
  font-weight:600;
  margin-bottom:14px;
}
.footer-grid p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.68);}
.footer-grid a{
  display:block;
  font-size:14px;
  color:rgba(255,255,255,.72);
  margin-bottom:10px;
}
.footer-grid a:hover{color:#fff;}
.footer-logo{
  display:flex !important;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:#fff !important;
  margin-bottom:14px;
}
.footer-logo svg{flex:0 0 auto;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  margin-top:36px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .container{padding:0 20px;}
  .article-hero h1{font-size:34px;}
  .article-hero{padding:48px 0 80px;}
  .article-card{padding:36px;}
  .article-inner{max-width:100%;}
  .section-head h2{font-size:26px;}
  .cta-band{padding:32px;flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .header-inner{height:60px;gap:12px;}
  .nav-tabs{display:none;}
  .header-cta{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .mobile-nav{top:60px;}
  .breadcrumb{font-size:12px;}
  .breadcrumb .current{max-width:40%;}
  .article-hero{padding:40px 0 76px;}
  .article-hero h1{font-size:28px;line-height:1.3;}
  .article-meta{font-size:12px;gap:10px;}
  .article-card{margin-top:-40px;padding:24px 20px;border-radius:12px;}
  .article-body{font-size:16px;line-height:1.9;}
  .article-body h2{font-size:22px;margin:32px 0 14px;}
  .article-body h3{font-size:18px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav .align-right{text-align:left;}
  .section{padding:48px 0 0;}
  .section-head h2{font-size:22px;}
  .related-grid{grid-template-columns:1fr;gap:16px;}
  .cta-band{margin-top:48px;padding:26px 22px;border-radius:14px;}
  .cta-band h2{font-size:22px;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{flex:1 1 auto;padding:0 18px;}
  .site-footer{margin-top:52px;padding:40px 0 20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px;}
  .footer-bottom{font-size:12px;line-height:1.7;}
  .back-row .btn{width:100%;}
}
@media (max-width:519px){
  .footer-grid{grid-template-columns:1fr;}
  .article-hero h1{font-size:25px;}
  .empty-state{padding:36px 18px;}
}

/* roulang page: category2 */
:root{
  --brand-900:#143B38;
  --brand-700:#1F5B56;
  --brand-600:#2E6E6B;
  --brand-100:#E4EFEC;
  --brand-50:#F1F7F5;
  --accent-600:#D97A4E;
  --accent-100:#FBEDE5;
  --ink:#1B2422;
  --ink-2:#4A5654;
  --line:#E3DFD8;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(20,40,38,.05), 0 8px 24px rgba(20,40,38,.06);
  --shadow-2:0 2px 4px rgba(20,40,38,.06), 0 16px 32px rgba(20,40,38,.10);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'PingFang SC','HarmonyOS Sans SC','Noto Sans SC','Microsoft YaHei',system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-700);}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em;line-height:1.25;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid var(--brand-100);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.header-inner{
  display:flex;align-items:center;gap:20px;
  height:68px;
}
.logo{
  display:flex;align-items:center;gap:10px;
  flex-shrink:0;
  color:var(--ink);
  font-size:17px;font-weight:700;
  letter-spacing:-.01em;
}
.logo:hover{color:var(--brand-700);}
.logo svg{flex:0 0 auto;}
.logo-badge{
  display:inline-block;
  font-size:11px;font-weight:600;letter-spacing:.04em;
  color:var(--brand-700);
  background:var(--brand-100);
  border-radius:999px;
  padding:2px 9px;
  line-height:1.7;
}
.nav-tabs{
  display:flex;align-items:center;gap:6px;
  margin:0 auto;
}
.nav-tabs a{
  display:inline-block;
  padding:7px 15px;
  border-radius:999px;
  border:1px solid var(--line);
  color:var(--ink-2);
  font-size:14px;font-weight:500;
  white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.nav-tabs a:hover{background:var(--brand-50);color:var(--brand-700);border-color:var(--brand-100);}
.nav-tabs a.is-active{
  background:var(--brand-100);
  border-color:var(--brand-100);
  color:var(--brand-700);
  font-weight:600;
}
.header-cta{flex-shrink:0;}
.nav-toggle{
  display:none;
  margin-left:auto;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--surface);
  cursor:pointer;
  align-items:center;justify-content:center;
  color:var(--brand-700);
  transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:var(--brand-50);border-color:var(--brand-100);}

/* 移动抽屉 */
.nav-drawer{
  position:fixed;inset:0 0 0 auto;
  width:min(340px,86vw);
  background:var(--surface);
  z-index:80;
  transform:translateX(104%);
  transition:transform .26s ease;
  box-shadow:-16px 0 40px rgba(20,40,38,.14);
  display:flex;flex-direction:column;
  padding:20px;
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,40,38,.42);
  opacity:0;visibility:hidden;transition:opacity .26s ease,visibility .26s ease;
  z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.nav-drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:16px;margin-bottom:16px;
  border-bottom:1px solid var(--line);
  font-weight:700;color:var(--brand-700);
}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink-2);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-close:hover{background:var(--brand-50);color:var(--brand-700);}
.drawer-tabs{display:flex;flex-direction:column;gap:4px;margin-bottom:20px;}
.drawer-tabs a{
  display:block;padding:12px 14px;border-radius:10px;
  color:var(--ink-2);font-size:15px;border-left:3px solid transparent;
}
.drawer-tabs a:hover{background:var(--brand-50);color:var(--brand-700);}
.drawer-tabs a.is-active{
  color:var(--brand-700);font-weight:600;background:var(--brand-50);
  border-left-color:var(--brand-600);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--brand-600);color:#fff;}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-ghost{background:var(--surface);color:var(--brand-600);border-color:var(--brand-600);}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-700);border-color:var(--brand-700);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  padding:22px 0 0;
  font-size:13px;color:var(--ink-2);
}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0;padding:0;list-style:none;}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:var(--line);}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--brand-700);}
.breadcrumb .current{color:var(--brand-700);font-weight:600;}

/* ---------- 首屏 ---------- */
.page-hero{
  padding:40px 0 76px;
  background:
    radial-gradient(1200px 420px at 88% -12%, rgba(228,239,236,.9), rgba(247,245,241,0) 62%),
    var(--bg);
  overflow:hidden;
}
.hero-grid{align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--accent-600);
  background:var(--accent-100);
  border-radius:999px;
  padding:5px 14px;
  margin:0 0 18px;
}
.eyebrow::before{content:"";width:16px;height:2px;background:var(--accent-600);border-radius:2px;}
.page-hero h1{
  font-size:42px;
  line-height:1.25;
  font-weight:700;
  margin:0 0 20px;
  max-width:14em;
}
.hero-lead{
  font-size:16px;line-height:1.9;
  color:var(--ink-2);
  max-width:34em;
  margin:0 0 28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:8px;
}
.hero-meta li{
  font-size:13px;color:var(--brand-700);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:999px;
  padding:5px 14px;
}
.hero-figure{
  margin:0;
  border-radius:16px;
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--brand-100);
  box-shadow:var(--shadow-1);
}
.hero-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}

/* ---------- 通用板块 ---------- */
.section{padding:80px 0;}
.section.is-surface{background:var(--surface);}
.section.is-tint{background:var(--brand-50);}
.section-head{max-width:720px;}
.kicker{
  display:block;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--accent-600);
  margin-bottom:14px;
}
.kicker::before{
  content:"";display:block;
  width:28px;height:2px;background:var(--accent-600);
  border-radius:2px;margin-bottom:12px;
}
.section-title{
  font-size:30px;font-weight:700;line-height:1.3;
  margin:0 0 16px;
}
.section-desc{
  font-size:15px;line-height:1.85;color:var(--ink-2);margin:0;
}

/* ---------- 要点速览 ---------- */
.grid-gut{margin-left:-12px;margin-right:-12px;}
.grid-gut > .cell{padding-left:12px;padding-right:12px;}
.quick-grid{margin-top:36px;}
.quick-card{
  height:100%;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px 22px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.quick-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--brand-100);}
.quick-icon{
  width:40px;height:40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-100);color:var(--brand-700);
  margin-bottom:16px;
}
.quick-card h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.quick-card p{font-size:14px;line-height:1.8;color:var(--ink-2);margin:0;}

/* ---------- 交替图文 ---------- */
.alt-block{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
  margin-top:56px;
}
.alt-block:first-of-type{margin-top:48px;}
.alt-block.is-reverse .alt-media{order:2;}
.alt-block.is-reverse .alt-text{order:1;}
.alt-media{
  margin:0;
  border-radius:16px;
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--brand-100);
}
.alt-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .3s ease;
}
.alt-media:hover img{transform:scale(1.02);}
.alt-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:50%;
  border:1px solid var(--accent-600);
  background:var(--accent-100);
  color:var(--accent-600);
  font-size:15px;font-weight:600;
  margin-bottom:16px;
}
.alt-text h3{font-size:20px;font-weight:600;margin:0 0 14px;}
.alt-text p{font-size:15px;line-height:1.85;color:var(--ink-2);margin:0 0 16px;}
.alt-list{display:flex;flex-direction:column;gap:10px;}
.alt-list li{
  position:relative;
  padding-left:20px;
  font-size:15px;line-height:1.8;color:var(--ink);
}
.alt-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:7px;height:7px;border-radius:50%;
  background:var(--brand-600);
}

/* ---------- 风险提示条 ---------- */
.risk-bar{
  display:flex;align-items:flex-start;gap:16px;
  background:var(--accent-100);
  border:1px solid #F3D9C9;
  border-radius:var(--radius-card);
  padding:22px 24px;
  margin-top:56px;
}
.risk-bar svg{flex:0 0 auto;color:var(--accent-600);margin-top:2px;}
.risk-bar strong{display:block;font-size:15px;font-weight:600;color:#8C4A28;margin-bottom:6px;}
.risk-bar p{font-size:14px;line-height:1.85;color:#7A4B31;margin:0;}

/* ---------- 检查清单 ---------- */
.check-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px 20px;
  margin-top:36px;
}
.check-item{
  display:flex;align-items:flex-start;gap:12px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
  padding:16px 18px;
  font-size:15px;
  color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.check-item:hover{border-color:var(--brand-100);box-shadow:var(--shadow-1);}
.check-item svg{flex:0 0 auto;margin-top:3px;color:var(--brand-600);}

/* ---------- FAQ ---------- */
.faq-list{margin-top:36px;max-width:880px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
  margin-bottom:12px;
  overflow:hidden;
  transition:background .2s ease,border-color .2s ease;
}
.faq-item:hover{background:var(--brand-50);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;
  padding:12px 20px;
  cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  font-size:20px;font-weight:400;line-height:1;
  color:var(--brand-600);
  transition:transform .2s ease;
}
.faq-item[open] summary{color:var(--brand-700);}
.faq-item[open] summary::after{content:"−";}
.faq-body{
  padding:0 20px 20px;
  font-size:15px;line-height:1.85;color:var(--ink-2);
}
.faq-body p{margin:0;}

/* ---------- 底部 CTA ---------- */
.cta-band{
  background:var(--brand-100);
  border-radius:18px;
  padding:44px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:26px;font-weight:700;margin:0 0 10px;}
.cta-band p{font-size:15px;color:var(--brand-700);margin:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.back-row{display:flex;justify-content:center;margin-top:32px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-900);
  color:#fff;
  padding:64px 0 28px;
  margin-top:80px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:40px;
}
.footer-logo{
  display:flex;align-items:center;gap:10px;
  color:#fff;
  font-size:17px;font-weight:700;
  margin-bottom:18px;
}
.footer-logo:hover{color:#fff;}
.footer-logo span{color:#fff;}
.site-footer h4{
  font-size:16px;font-weight:600;color:#fff;
  margin:0 0 16px;
}
.site-footer p{
  font-size:14px;line-height:1.9;
  color:rgba(255,255,255,.72);
  margin:0 0 12px;
}
.site-footer a{
  display:block;
  font-size:14px;
  color:rgba(255,255,255,.72);
  margin-bottom:10px;
  transition:color .2s ease;
}
.site-footer a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  margin-top:40px;
  padding-top:20px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .nav-tabs{display:none;}
  .header-cta{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{height:60px;}
  .page-hero{padding:32px 0 60px;}
  .page-hero h1{font-size:34px;}
  .section{padding:64px 0;}
  .section-title{font-size:26px;}
  .alt-block{gap:36px;margin-top:44px;}
  .cta-band{padding:36px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media screen and (max-width:767px){
  .container{padding:0 20px;}
  .page-hero h1{font-size:28px;}
  .hero-lead{font-size:15px;}
  .section{padding:48px 0;}
  .section-title{font-size:22px;}
  .alt-block{grid-template-columns:1fr;gap:24px;margin-top:36px;}
  .alt-block.is-reverse .alt-media{order:0;}
  .alt-block.is-reverse .alt-text{order:1;}
  .alt-text h3{font-size:18px;}
  .check-grid{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 22px;}
  .cta-band h2{font-size:22px;}
  .risk-bar{flex-direction:column;gap:12px;}
  .site-footer{padding:48px 0 24px;margin-top:48px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .quick-card{padding:20px;}
  .btn{height:46px;padding:0 22px;font-size:15px;}
}
@media screen and (max-width:520px){
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .logo-badge{display:none;}
  .page-hero h1{font-size:26px;}
}

/* roulang page: category3 */
:root{
  --brand-900:#143B38;
  --brand-700:#1F5B56;
  --brand-600:#2E6E6B;
  --brand-100:#E4EFEC;
  --brand-50:#F1F7F5;
  --accent-600:#D97A4E;
  --accent-100:#FBEDE5;
  --ink:#1B2422;
  --ink-2:#4A5654;
  --line:#E3DFD8;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --shadow-1:0 1px 2px rgba(20,40,38,.05), 0 8px 24px rgba(20,40,38,.06);
  --shadow-2:0 2px 4px rgba(20,40,38,.06), 0 16px 32px rgba(20,40,38,.10);
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --header-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'PingFang SC','HarmonyOS Sans SC','Noto Sans SC','Microsoft YaHei',system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-600);text-decoration:none;transition:color 200ms ease}
a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
button{font-family:inherit}
:focus-visible{
  outline:1px solid var(--brand-600);
  outline-offset:2px;
  box-shadow:0 0 0 3px var(--brand-100);
  border-radius:6px;
}
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
}
[hidden]{display:none !important}
.container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ============ 页头 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow 200ms ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:var(--header-h);
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--brand-900);
  font-size:17px;
  font-weight:700;
  letter-spacing:-.01em;
  text-decoration:none;
}
.logo:hover{color:var(--brand-900);text-decoration:none}
.logo svg{flex:0 0 auto}
.nav-tabs{
  display:flex;
  align-items:center;
  gap:8px;
  margin:0 auto;
  flex-wrap:nowrap;
}
.nav-tabs a{
  display:inline-block;
  padding:7px 15px;
  border-radius:999px;
  border:1px solid var(--line);
  color:var(--ink-2);
  font-size:14px;
  line-height:1.5;
  text-decoration:none;
  white-space:nowrap;
  transition:background 200ms ease,color 200ms ease,border-color 200ms ease;
}
.nav-tabs a:hover{background:var(--brand-50);color:var(--brand-700);text-decoration:none;border-color:var(--brand-100)}
.nav-tabs a.is-active{
  background:var(--brand-100);
  color:var(--brand-700);
  border-color:transparent;
  font-weight:600;
}
.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  margin-left:auto;
}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--surface);
  cursor:pointer;
  padding:0;
  transition:background 200ms ease,border-color 200ms ease;
}
.nav-toggle:hover{background:var(--brand-50);border-color:var(--brand-100)}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  background:var(--brand-700);
  border-radius:2px;
  position:relative;
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  background:var(--brand-700);
  border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{display:none}
.mobile-drawer nav{display:flex;flex-direction:column;padding:8px 0 16px}
.mobile-drawer nav a{
  display:block;
  padding:13px 8px;
  color:var(--ink-2);
  font-size:15px;
  border-bottom:1px solid var(--line);
  text-decoration:none;
}
.mobile-drawer nav a:last-child{border-bottom:0}
.mobile-drawer nav a.is-active{
  color:var(--brand-700);
  font-weight:600;
  border-left:3px solid var(--brand-600);
  padding-left:14px;
}
.mobile-drawer .drawer-cta{margin-top:14px}
.mobile-drawer.is-open{display:block;border-top:1px solid var(--line);background:var(--surface);padding:0 24px;box-shadow:var(--shadow-1)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  text-decoration:none;
  cursor:pointer;
  transition:background 200ms ease,color 200ms ease,border-color 200ms ease,transform 200ms ease,box-shadow 200ms ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--brand-600);color:#fff}
.btn-primary:hover{background:var(--brand-700);color:#fff}
.btn-ghost{background:var(--surface);border-color:var(--brand-600);color:var(--brand-600)}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-700)}
.btn-accent{background:var(--accent-600);color:#fff}
.btn-accent:hover{background:#c96b40;color:#fff}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

/* ============ 内页首屏 ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  padding:36px 0 48px;
}
.page-hero .cloud-mark{
  position:absolute;
  right:-40px;
  top:-20px;
  width:340px;
  height:340px;
  opacity:.07;
  pointer-events:none;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-2);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--ink-2);text-decoration:none}
.breadcrumb a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--brand-700);font-weight:600}
.page-hero h1{
  font-size:42px;
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--brand-900);
  max-width:820px;
}
.hero-lead{
  margin-top:16px;
  max-width:760px;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
}
.faq-search{
  display:flex;
  gap:12px;
  margin-top:28px;
  max-width:640px;
}
.faq-search input[type="search"]{
  flex:1 1 auto;
  min-width:0;
  height:46px;
  padding:0 16px;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--surface);
  color:var(--ink);
  font-size:15px;
  font-family:inherit;
  transition:border-color 200ms ease,box-shadow 200ms ease;
}
.faq-search input[type="search"]::placeholder{color:rgba(74,86,84,.7)}
.faq-search input[type="search"]:focus{
  outline:none;
  border-color:var(--brand-600);
  box-shadow:0 0 0 3px rgba(46,110,107,.16);
}
.faq-search .btn{flex:0 0 auto}
.chip-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:24px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:7px 16px;
  border-radius:999px;
  background:var(--brand-50);
  border:1px solid var(--brand-100);
  color:var(--brand-700);
  font-size:14px;
  text-decoration:none;
  transition:background 200ms ease,color 200ms ease,transform 200ms ease;
}
.chip:hover{background:var(--brand-100);color:var(--brand-700);text-decoration:none;transform:translateY(-1px)}
.chip .chip-num{font-weight:600;color:var(--accent-600)}

/* ============ 主体两栏 ============ */
.section{padding:64px 0}
.section-tint{background:var(--brand-50)}
.section-head{margin-bottom:32px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  font-weight:600;
  color:var(--brand-600);
  letter-spacing:.06em;
  margin-bottom:12px;
}
.eyebrow::before{
  content:"";
  display:inline-block;
  width:28px;
  height:2px;
  background:var(--accent-600);
  border-radius:2px;
}
.section-head h2{
  font-size:30px;
  line-height:1.3;
  font-weight:700;
  color:var(--brand-900);
  letter-spacing:-.01em;
}
.section-head p{
  margin-top:12px;
  font-size:15px;
  color:var(--ink-2);
  max-width:760px;
}
.faq-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:40px;
  align-items:start;
}
.faq-main{min-width:0}
.faq-group{margin-bottom:44px;scroll-margin-top:96px}
.faq-group:last-of-type{margin-bottom:0}
.group-head{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:18px;
  padding-left:14px;
  border-left:3px solid var(--brand-600);
}
.group-head h2{
  font-size:22px;
  font-weight:700;
  color:var(--brand-900);
  line-height:1.4;
}
.group-head .group-count{
  font-size:13px;
  color:var(--ink-2);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:999px;
  padding:2px 10px;
}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
  margin-bottom:12px;
  transition:border-color 200ms ease,box-shadow 200ms ease,background 200ms ease;
}
.faq-item:hover{border-color:var(--brand-100);box-shadow:var(--shadow-1)}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:56px;
  padding:13px 20px;
  cursor:pointer;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  list-style:none;
  line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::marker{content:""}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  font-size:22px;
  font-weight:400;
  line-height:1;
  color:var(--brand-600);
  transition:color 200ms ease;
}
.faq-item[open]{border-color:var(--brand-100)}
.faq-item[open] summary{color:var(--brand-700)}
.faq-item[open] summary::after{content:"−"}
.faq-answer{
  padding:0 20px 20px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-2);
}
.faq-answer p{margin-bottom:10px}
.faq-answer p:last-child{margin-bottom:0}
.faq-answer ul{margin:10px 0 0}
.faq-answer li{
  position:relative;
  padding-left:18px;
  margin-bottom:6px;
  line-height:1.8;
}
.faq-answer li::before{
  content:"";
  position:absolute;
  left:2px;
  top:11px;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--accent-600);
  opacity:.75;
}
.faq-answer li:last-child{margin-bottom:0}
.empty-state{
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
  padding:48px 24px;
  text-align:center;
  background:var(--surface);
}
.empty-state svg{margin:0 auto 14px;display:block;color:var(--brand-600)}
.empty-state .empty-title{font-size:16px;font-weight:600;color:var(--ink)}
.empty-state .empty-text{margin-top:6px;font-size:14px;color:var(--ink-2)}
.empty-state .btn{margin-top:18px}

/* ============ 侧栏 ============ */
.faq-side{
  position:sticky;
  top:calc(var(--header-h) + 24px);
  display:flex;
  flex-direction:column;
  gap:20px;
}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  box-shadow:var(--shadow-1);
}
.side-card-soft{
  background:var(--brand-50);
  border-color:var(--brand-100);
  box-shadow:none;
}
.side-title{
  font-size:16px;
  font-weight:700;
  color:var(--brand-900);
  margin-bottom:16px;
  padding-bottom:12px;
  border-bottom:1px solid var(--line);
}
.side-card-soft .side-title{border-bottom-color:var(--brand-100)}
.hot-list li{border-bottom:1px dashed var(--line)}
.hot-list li:last-child{border-bottom:0}
.hot-list a{
  display:flex;
  gap:10px;
  padding:10px 0;
  font-size:14px;
  line-height:1.65;
  color:var(--ink-2);
  text-decoration:none;
  transition:color 200ms ease,padding-left 200ms ease;
}
.hot-list a:hover{color:var(--brand-700);padding-left:4px;text-decoration:none}
.hot-list .num{
  flex:0 0 auto;
  font-weight:600;
  font-size:13px;
  color:var(--accent-600);
  line-height:1.75;
}
.side-card-soft p{font-size:14px;line-height:1.8;color:var(--ink-2);margin-bottom:16px}

/* ============ 图文排查区 ============ */
.feature-x{padding-top:8px}
.media-frame{
  border-radius:16px;
  border:1px solid var(--line);
  overflow:hidden;
  background:var(--brand-100);
  box-shadow:var(--shadow-1);
}
.media-frame img{
  width:100%;
  height:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.feature-copy{padding:8px 0}
.feature-copy h2{
  font-size:30px;
  line-height:1.3;
  font-weight:700;
  color:var(--brand-900);
  letter-spacing:-.01em;
}
.feature-copy > p{
  margin-top:14px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-2);
}
.step-list{margin-top:26px}
.step-list li{
  display:flex;
  gap:16px;
  padding-bottom:22px;
  position:relative;
}
.step-list li::after{
  content:"";
  position:absolute;
  left:19px;
  top:44px;
  bottom:6px;
  width:1px;
  background:var(--line);
}
.step-list li:last-child{padding-bottom:0}
.step-list li:last-child::after{display:none}
.step-num{
  flex:0 0 auto;
  width:40px;
  height:40px;
  border-radius:50%;
  border:1px solid var(--accent-600);
  background:var(--accent-100);
  color:var(--accent-600);
  font-weight:600;
  font-size:15px;
  display:flex;
  align-items:center;
  justify-content:center;
}
.step-body h3{
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  line-height:1.5;
  margin-bottom:4px;
}
.step-body p{font-size:14px;line-height:1.8;color:var(--ink-2)}

/* ============ 提示条 ============ */
.notice-bar{
  display:flex;
  gap:14px;
  align-items:flex-start;
  background:var(--accent-100);
  border:1px solid rgba(217,122,78,.25);
  border-radius:var(--radius-card);
  padding:20px 22px;
  margin-top:40px;
}
.notice-bar svg{flex:0 0 auto;color:var(--accent-600);margin-top:3px}
.notice-bar p{font-size:14px;line-height:1.8;color:#7a4a2f;margin:0}
.notice-bar strong{color:#6b3f27}

/* ============ CTA 横条 ============ */
.cta-band{
  background:var(--brand-100);
  border-top:1px solid var(--brand-100);
  border-bottom:1px solid var(--brand-100);
  padding:48px 0;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-inner h2{
  font-size:26px;
  line-height:1.35;
  font-weight:700;
  color:var(--brand-900);
  letter-spacing:-.01em;
}
.cta-inner p{
  margin-top:8px;
  font-size:15px;
  color:var(--ink-2);
  max-width:560px;
}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--brand-900);
  color:#fff;
  padding:64px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:17px;
  font-weight:700;
  text-decoration:none;
  margin-bottom:16px;
}
.footer-logo:hover{color:#fff;text-decoration:none}
.site-footer h4{
  font-size:16px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.site-footer p{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.72);
  margin-bottom:12px;
}
.site-footer p:last-child{margin-bottom:0}
.site-footer .footer-grid > div > a{
  display:block;
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.72);
  text-decoration:none;
  margin-bottom:8px;
  transition:color 200ms ease;
}
.site-footer .footer-grid > div > a:hover{color:#fff;text-decoration:none}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  padding-top:24px;
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .header-inner{height:60px;min-height:60px}
  .nav-tabs{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn{display:none}
  .page-hero{padding:28px 0 40px}
  .page-hero h1{font-size:32px}
  .faq-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .faq-side{position:static;top:auto}
  .section{padding:56px 0}
  .section-head h2{font-size:26px}
  .feature-copy h2{font-size:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:20px}
}
@media (max-width:767px){
  .container{padding-left:20px;padding-right:20px}
  body{font-size:15px}
  .page-hero h1{font-size:28px}
  .hero-lead{font-size:15px}
  .faq-search{flex-direction:column;gap:10px}
  .faq-search .btn{width:100%}
  .section{padding:48px 0}
  .section-head h2{font-size:22px}
  .feature-copy h2{font-size:22px}
  .group-head h2{font-size:19px}
  .faq-item summary{font-size:15px;padding:12px 16px;min-height:52px}
  .faq-answer{padding:0 16px 16px;font-size:14.5px}
  .side-card{padding:20px}
  .cta-band{padding:40px 0}
  .cta-inner h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding:48px 0 24px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .step-body h3{font-size:16px}
}
@media (max-width:520px){
  .logo{font-size:16px}
  .page-hero h1{font-size:25px}
  .chip-bar{gap:8px}
  .chip{font-size:13px;padding:6px 12px}
}

/* roulang page: category4 */
:root{
  --brand-900:#143B38;
  --brand-700:#1F5B56;
  --brand-600:#2E6E6B;
  --brand-100:#E4EFEC;
  --brand-50:#F1F7F5;
  --accent-600:#D97A4E;
  --accent-100:#FBEDE5;
  --ink:#1B2422;
  --ink-2:#4A5654;
  --line:#E3DFD8;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(20,40,38,.05),0 8px 24px rgba(20,40,38,.06);
  --shadow-2:0 2px 4px rgba(20,40,38,.06),0 16px 32px rgba(20,40,38,.10);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:'PingFang SC','HarmonyOS Sans SC','Noto Sans SC','Microsoft YaHei',system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:-.01em;color:var(--ink)}
p{margin:0 0 1.1em}
h1{font-size:42px;line-height:1.25}
h2{font-size:30px}
h3{font-size:20px}
h4{font-size:16px}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-tight{padding:56px 0}
.section-alt{background:var(--surface)}
.section-head{max-width:760px;margin-bottom:36px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--brand-700);background:var(--brand-100);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.mark-line{display:block;width:28px;height:3px;border-radius:2px;background:var(--accent-600);margin-bottom:14px}
.section-head h2{font-size:30px;margin-bottom:12px}
.section-head p{font-size:15px;color:var(--ink-2);margin:0}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-text{font-size:18px;font-weight:700;color:var(--brand-900);letter-spacing:-.01em;white-space:nowrap}
.nav-tabs{display:flex;align-items:center;gap:6px;margin:0 auto;flex-wrap:nowrap}
.nav-tabs a{
  display:inline-block;padding:8px 16px;border-radius:999px;
  font-size:15px;color:var(--ink-2);border:1px solid transparent;
  white-space:nowrap;transition:background .2s ease,color .2s ease;
}
.nav-tabs a:hover{background:var(--brand-50);color:var(--brand-700);text-decoration:none}
.nav-tabs a.is-active{background:var(--brand-100);color:var(--brand-700);font-weight:600}
.header-cta{flex:0 0 auto}
.nav-burger{display:none;width:40px;height:40px;border-radius:10px;margin-left:auto;flex-direction:column;justify-content:center;align-items:center;gap:5px;border:1px solid var(--line)}
.nav-burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;text-decoration:none;
  transition:background .2s ease,color .2s ease,transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--brand-600);color:#fff;border:1px solid var(--brand-600)}
.btn-primary:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff}
.btn-ghost{background:#fff;color:var(--brand-600);border:1px solid var(--brand-600)}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-700)}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:9px}

/* ---------- Breadcrumb ---------- */
.breadcrumb{padding:18px 0 6px;font-size:14px;color:var(--ink-2)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--brand-700)}
.breadcrumb .sep{color:#B9B3A9}
.breadcrumb .current{color:var(--brand-700);font-weight:600}

/* ---------- Hero ---------- */
.page-hero{padding:28px 0 64px}
.hero-grid{display:flex;align-items:center;gap:48px;flex-wrap:wrap}
.hero-copy{flex:1 1 520px;min-width:0}
.hero-media{flex:1 1 380px;min-width:0}
.hero-copy h1{font-size:42px;line-height:1.25;margin-bottom:18px}
.hero-copy h1 .hl{color:var(--brand-700)}
.hero-lead{font-size:16px;line-height:1.9;color:var(--ink-2);margin-bottom:28px;max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-media figure{margin:0;border-radius:16px;overflow:hidden;border:1px solid var(--line);background:var(--brand-100)}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.data-strip{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;
}
.data-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-700);
  font-size:13px;font-weight:600;
}
.data-chip .num{font-size:15px;font-weight:700;color:var(--brand-900)}

/* ---------- Filter chips ---------- */
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.chip{
  display:inline-block;padding:8px 18px;border-radius:999px;
  font-size:14px;color:var(--ink-2);background:#fff;
  border:1px solid var(--line);transition:all .2s ease;
}
.chip:hover{background:var(--brand-50);color:var(--brand-700);border-color:var(--brand-100)}
.chip.is-active{background:var(--brand-100);color:var(--brand-700);border-color:var(--brand-100);font-weight:600}

/* ---------- News list ---------- */
.card-grid{display:flex;flex-wrap:wrap;gap:24px;margin:0}
.card-grid > .cell{width:calc(33.3333% - 16px);flex:0 0 calc(33.3333% - 16px);margin:0}
.news-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;height:100%;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--brand-600)}
.news-card-link{display:flex;flex-direction:column;height:100%;color:inherit;text-decoration:none}
.news-card-link:hover{color:inherit;text-decoration:none}
.news-card-media{aspect-ratio:16/9;background:var(--brand-100);overflow:hidden}
.news-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.news-card:hover .news-card-media img{transform:scale(1.03)}
.news-card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-card-body h3{
  font-size:18px;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease;
}
.news-card:hover .news-card-body h3{color:var(--brand-700)}
.news-card-excerpt{
  margin:0;font-size:14px;line-height:1.7;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card-meta{
  margin-top:auto;display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-2);
}
.news-card-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line)}
.tag{
  display:inline-block;align-self:flex-start;
  font-size:11px;font-weight:600;line-height:1;
  padding:6px 11px;border-radius:999px;
  background:var(--accent-100);color:var(--accent-600);
}
.tag-muted{background:var(--brand-50);color:var(--brand-700)}

/* ---------- Pager ---------- */
.pager{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  margin-top:44px;padding-top:28px;border-top:1px solid var(--line);
}
.pager-num{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:42px;height:42px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:14px;color:var(--ink-2);font-weight:600;
  transition:all .2s ease;
}
.pager-num:hover{background:var(--brand-50);color:var(--brand-700);border-color:var(--brand-100);text-decoration:none}
.pager-num.is-current{background:var(--brand-600);border-color:var(--brand-600);color:#fff}
.pager-num.is-current:hover{background:var(--brand-700);color:#fff}
.pager-note{margin-left:auto;font-size:13px;color:var(--ink-2)}

/* ---------- Topic grid ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.topic-card{
  display:flex;gap:16px;align-items:flex-start;
  padding:24px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  text-decoration:none;color:inherit;
}
.topic-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--brand-600);color:inherit;text-decoration:none}
.topic-icon{
  flex:0 0 auto;width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-50);color:var(--brand-600);
}
.topic-card h3{font-size:17px;margin-bottom:6px}
.topic-card p{margin:0;font-size:14px;line-height:1.75;color:var(--ink-2)}

/* ---------- Guide steps ---------- */
.guide-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 24px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.step-num{
  width:40px;height:40px;border-radius:999px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--accent-600);background:var(--accent-100);
  color:var(--accent-600);font-weight:600;font-size:15px;
  margin-bottom:16px;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{margin:0;font-size:14px;line-height:1.75;color:var(--ink-2)}

/* ---------- CTA band ---------- */
.cta-band{background:var(--brand-100);padding:56px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:26px;margin-bottom:10px;color:var(--brand-900)}
.cta-inner p{margin:0;font-size:15px;color:var(--ink-2);max-width:44em}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- Footer ---------- */
.site-footer{background:var(--brand-900);color:#fff;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.site-footer h4{font-size:16px;color:#fff;margin-bottom:16px}
.site-footer p{color:rgba(255,255,255,.72);font-size:14px;line-height:1.85;margin:0 0 12px}
.site-footer a{display:block;color:rgba(255,255,255,.72);font-size:14px;margin-bottom:10px;text-decoration:none;transition:color .2s ease}
.site-footer a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-logo{
  display:inline-flex;align-items:center;gap:10px;
  color:#fff;font-size:18px;font-weight:700;margin-bottom:16px;
}
.footer-logo:hover{color:#fff;text-decoration:none}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- Responsive ---------- */
@media screen and (max-width:1023px){
  .header-inner{min-height:60px}
  .nav-burger{display:inline-flex}
  .header-cta .btn-sm{height:34px;padding:0 14px;font-size:13px}
  .nav-tabs{
    position:fixed;left:0;right:0;top:60px;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    margin:0;padding:12px 20px 24px;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-1);
  }
  .nav-tabs.is-open{display:flex}
  .nav-tabs a{padding:12px 14px;border-radius:8px;border-left:3px solid transparent;font-size:15px}
  .nav-tabs a.is-active{background:var(--brand-50);border-left-color:var(--brand-600)}
  .section{padding:64px 0}
  .page-hero{padding:16px 0 48px}
  .hero-grid{gap:32px}
  .hero-copy h1{font-size:34px}
  h2,.section-head h2{font-size:26px}
  .card-grid > .cell{width:calc(50% - 12px);flex:0 0 calc(50% - 12px)}
  .guide-steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media screen and (max-width:767px){
  .container{padding:0 20px}
  .section{padding:48px 0}
  .hero-copy h1{font-size:28px}
  h2,.section-head h2{font-size:22px}
  .hero-lead{font-size:15px}
  .hero-media img{aspect-ratio:16/10}
  .btn{height:46px;padding:0 22px;font-size:15px}
  .card-grid{gap:16px}
  .card-grid > .cell{width:100%;flex:0 0 100%}
  .topic-grid{grid-template-columns:1fr;gap:16px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-band{padding:44px 0}
  .cta-inner h2{font-size:22px}
  .pager-note{margin-left:0;width:100%}
  .breadcrumb{font-size:13px}
  .news-card-body{padding:20px}
}
@media screen and (max-width:400px){
  .brand-text{font-size:16px}
  .hero-actions .btn{width:100%}
}