/* roulang page: index */
:root{
  --primary:#B8452F;
  --primary-deep:#8E3222;
  --accent:#E8A33D;
  --ink:#1C1917;
  --muted:#5B534B;
  --weak:#8A8178;
  --bg:#FAF6F0;
  --surface:#FFFFFF;
  --fill:#F2EBE1;
  --line:#E6DED2;
  --dark:#2B3A42;
  --grad:linear-gradient(105deg,#B8452F 0%,#D9702F 50%,#E8A33D 100%);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 1px 2px rgba(28,25,23,.05);
  --sh-2:0 14px 32px -14px rgba(28,25,23,.18);
  --sh-3:0 24px 56px -20px rgba(28,25,23,.24);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Inter','Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:15.5px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,figure,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:rgba(184,69,47,.16)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:#D8CEC0;border-radius:999px}
::-webkit-scrollbar-track{background:transparent}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 28px}
.sec{padding:96px 0}
.sec--tight{padding:64px 0}
.sec--line{border-top:1px solid var(--line)}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.12em;
  color:var(--primary);text-transform:uppercase;margin-bottom:14px;
}
.sec-title{font-size:30px;line-height:1.25;font-weight:800;letter-spacing:-.01em}
.sec-sub{color:var(--muted);font-size:15px;margin-top:12px;max-width:640px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:36px;flex-wrap:wrap}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,246,240,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-inner{height:68px;display:flex;align-items:center;gap:26px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:22px;height:22px;border-radius:7px;background:var(--grad);
  position:relative;flex:0 0 auto;box-shadow:0 4px 10px -4px rgba(184,69,47,.7);
}
.brand-mark::after{
  content:"";position:absolute;left:5px;top:10px;width:9px;height:2px;
  background:#fff;border-radius:2px;
  box-shadow:4px -4px 0 0 #fff,4px 4px 0 0 #fff;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-main{font-size:15px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.brand-sub{font-size:11px;font-weight:500;letter-spacing:.02em;color:var(--muted);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-link{
  position:relative;font-size:14px;font-weight:500;color:var(--muted);
  padding:6px 0;transition:color .18s;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:-2px;width:16px;height:2px;
  border-radius:2px;background:var(--grad);transform:scaleX(0);transform-origin:left;
  transition:transform .18s;
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;width:240px;
  background:var(--surface);border:1px solid var(--line);border-radius:999px;
  padding:7px 12px;transition:width .22s,border-color .18s,box-shadow .18s;
}
.search-box:focus-within{width:320px;border-color:var(--primary);box-shadow:0 0 0 3px rgba(184,69,47,.18)}
.search-box svg{flex:0 0 auto;color:var(--weak)}
.search-box input{
  border:0;outline:0;background:transparent;width:100%;font-size:13px;color:var(--ink);
  font-family:inherit;
}
.search-box input::placeholder{color:var(--weak)}
.kbd{
  flex:0 0 auto;font-size:11px;line-height:1;padding:4px 6px;border-radius:6px;
  background:var(--fill);color:var(--muted);font-weight:600;letter-spacing:.02em;
}
.icon-btn{
  width:34px;height:34px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid transparent;background:transparent;color:var(--muted);
  transition:background .18s,color .18s,border-color .18s;flex:0 0 auto;
}
.icon-btn:hover{background:var(--fill);color:var(--primary);border-color:var(--line)}
.menu-btn{display:none}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:var(--bg);
  padding:16px 28px 22px;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer .search-box{width:100%;margin-bottom:14px}
.mobile-drawer .search-box:focus-within{width:100%}
.mobile-links{display:flex;flex-direction:column}
.mobile-links a{
  font-size:14px;font-weight:500;color:var(--muted);padding:12px 0;
  border-bottom:1px solid var(--line);transition:color .18s;
}
.mobile-links a:hover,.mobile-links a.is-active{color:var(--primary)}
.mobile-cta{margin-top:16px;width:100%;justify-content:center}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:999px;font-size:14px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:transform .18s,box-shadow .2s,background .2s,border-color .18s,color .18s;
  white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 22px -12px rgba(184,69,47,.85)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 14px 28px -12px rgba(184,69,47,.95)}
.btn-primary:active{transform:translateY(.5px);box-shadow:0 6px 14px -10px rgba(142,50,34,.9)}
.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(.5px)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--primary);transition:gap .18s,color .18s;
}
.btn-link:hover{gap:10px;color:var(--primary-deep)}
.btn[disabled]{opacity:.45;cursor:not-allowed}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 12px;border-radius:999px;border:1px solid var(--line);
  background:var(--surface);font-size:12px;color:var(--muted);
}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:0 0 auto}
.badge .dot--primary{background:var(--primary)}
.badge b{font-variant-numeric:tabular-nums;font-weight:700;color:var(--ink)}
.chip{
  display:inline-flex;align-items:center;font-size:13px;padding:4px 12px;border-radius:999px;
  background:var(--fill);color:var(--muted);transition:background .18s,color .18s;
}
.chip:hover{background:rgba(184,69,47,.1);color:var(--primary)}

/* ============ Hero ============ */
.hero{
  position:relative;isolation:isolate;color:#fff;overflow:hidden;
  background-image:
    linear-gradient(102deg,rgba(28,25,23,.86) 0%,rgba(28,25,23,.62) 42%,rgba(184,69,47,.42) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:80px;z-index:-1;
  background:linear-gradient(to bottom,rgba(250,246,240,0),var(--bg));
}
.hero-grid{
  display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;
  padding:88px 0 104px;
}
.hero-eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.12em;
  color:var(--accent);margin-bottom:18px;
}
.hero h1{
  font-size:clamp(34px,5vw,58px);line-height:1.12;letter-spacing:-.02em;
  font-weight:800;margin-bottom:18px;max-width:15em;
}
.hero-line{
  width:56px;height:3px;border-radius:3px;background:var(--accent);margin-bottom:22px;
}
.hero p.lead{
  font-size:16px;line-height:1.85;color:rgba(255,255,255,.86);max-width:36em;margin-bottom:30px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:32px}
.hero-actions .btn-ghost{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.4);color:#fff}
.hero-actions .btn-ghost:hover{background:rgba(255,255,255,.18);border-color:#fff;color:#fff}
.hero-badges{display:flex;gap:12px;flex-wrap:wrap}
.hero-badges .badge{
  background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.28);color:rgba(255,255,255,.88);
}
.hero-badges .badge b{color:#fff}
.hero-posters{display:flex;flex-direction:column;gap:20px}
.poster{
  border-radius:18px;overflow:hidden;border:1px solid rgba(255,255,255,.4);
  box-shadow:var(--sh-3);background:#1C1917;
}
.poster img{width:100%;aspect-ratio:16/9;object-fit:cover}
.poster--up{transform:translateY(-24px)}
.poster--down{transform:translateY(32px)}
.poster figcaption{
  padding:12px 16px;font-size:13px;color:rgba(255,255,255,.82);
  background:rgba(28,25,23,.72);display:flex;align-items:center;gap:8px;
}

/* ============ 横滑轨道 ============ */
.rail-wrap{position:relative}
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 2px 18px;scrollbar-width:none;-ms-overflow-style:none;
}
.rail::-webkit-scrollbar{display:none}
.rail > .card{flex:0 0 260px;scroll-snap-align:start}
.rail-nav{display:flex;gap:8px}
.rail-btn{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--line);background:var(--surface);
  display:inline-flex;align-items:center;justify-content:center;color:var(--muted);
  transition:border-color .18s,color .18s,background .18s;
}
.rail-btn:hover{border-color:var(--primary);color:var(--primary);background:rgba(184,69,47,.06)}

/* ============ 卡片 ============ */
.card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .22s,box-shadow .22s,border-color .22s,background .22s;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(184,69,47,.35)}
.thumb{overflow:hidden;border-radius:14px}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.card:hover .thumb img{transform:scale(1.04)}
.card-body{padding:18px 18px 20px}
.card-title{font-size:17px;font-weight:700;line-height:1.5;margin-bottom:8px}
.card-text{font-size:13.5px;color:var(--muted);line-height:1.75}
.card-kicker{
  font-size:11px;font-weight:700;letter-spacing:.1em;color:var(--primary);margin-bottom:8px;
  text-transform:uppercase;
}
.rail .card .thumb img{aspect-ratio:16/9}

/* ============ 非对称两栏 ============ */
.split{display:grid;grid-template-columns:8fr 4fr;gap:32px;align-items:start}
.feature-card{padding:0}
.feature-card .thumb{border-radius:0}
.feature-card .thumb img{aspect-ratio:16/9}
.feature-body{padding:28px}
.feature-body h3{font-size:23px;font-weight:800;line-height:1.4;margin-bottom:12px}
.feature-body p{color:var(--muted);font-size:15px;margin-bottom:18px}
.feature-meta{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px}
.mini-list{display:flex;flex-direction:column}
.mini-item{
  display:flex;gap:14px;align-items:flex-start;padding:16px 4px;
  border-bottom:1px solid var(--line);transition:background .18s,padding .18s;
}
.mini-item:first-child{padding-top:4px}
.mini-item:last-child{border-bottom:0}
.mini-item:hover{background:rgba(184,69,47,.04);border-radius:12px;padding-left:10px}
.mini-thumb{
  width:72px;height:72px;flex:0 0 72px;border-radius:12px;overflow:hidden;background:var(--fill);
}
.mini-thumb img{width:100%;height:100%;object-fit:cover}
.mini-copy h4{font-size:15px;font-weight:700;line-height:1.5;margin-bottom:4px}
.mini-copy p{font-size:13px;color:var(--muted);line-height:1.65}
.mini-time{font-size:12px;color:var(--weak);margin-top:6px;display:block}

/* ============ 分区矩阵 ============ */
.matrix{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:auto auto;gap:24px}
.matrix .m-large{grid-column:span 1;grid-row:span 2}
.m-card{
  position:relative;padding:26px;border-radius:var(--r-lg);background:var(--surface);
  border:1px solid var(--line);box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .22s,box-shadow .22s,border-color .22s;
}
.m-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(184,69,47,.35)}
.m-icon{
  width:40px;height:40px;border-radius:12px;background:var(--fill);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px;flex:0 0 auto;
}
.m-card h3{font-size:19px;font-weight:800;line-height:1.4;margin-bottom:10px}
.m-card p{font-size:14px;color:var(--muted);line-height:1.75}
.m-card .badge{position:absolute;top:20px;right:20px}
.m-large .thumb{border-radius:14px;overflow:hidden;margin-bottom:18px}
.m-large .thumb img{aspect-ratio:16/9}
.m-large h3{font-size:22px}

/* ============ 步骤流程 ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step{
  position:relative;padding:26px 24px;border-radius:var(--r-md);background:var(--surface);
  border:1px solid var(--line);
}
.step span.num{
  font-variant-numeric:tabular-nums;font-size:13px;font-weight:800;letter-spacing:.08em;
  color:var(--primary);display:block;margin-bottom:12px;
}
.step h3{font-size:18px;font-weight:700;margin-bottom:8px}
.step p{font-size:14px;color:var(--muted)}
.stat-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  background:var(--fill);border-radius:var(--r-md);padding:26px 28px;
}
.stat b{display:block;font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--primary-deep);line-height:1.2}
.stat span{font-size:13px;color:var(--muted)}

/* ============ 资讯列表 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{display:flex;flex-direction:column}
.news-thumb{border-radius:0;overflow:hidden}
.news-thumb img{aspect-ratio:16/9}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1}
.news-body h3{
  font-size:18px;font-weight:700;line-height:1.5;margin:10px 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  font-size:14px;color:var(--muted);line-height:1.75;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--line);
}
.news-meta time{font-size:13px;color:var(--weak);font-variant-numeric:tabular-nums}
.link-more{font-size:13px;font-weight:600;color:var(--primary)}
.card:hover .link-more{color:var(--primary-deep)}
.empty{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:56px 24px;border:1px dashed var(--line);border-radius:var(--r-md);
  background:var(--surface);color:var(--muted);font-size:14px;text-align:center;
}
.empty svg{color:var(--weak)}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 0;font-size:16px;font-weight:600;transition:color .18s;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--primary)}
.faq .plus{
  position:relative;width:18px;height:18px;flex:0 0 18px;transition:transform .2s;
}
.faq .plus::before,.faq .plus::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
}
.faq .plus::before{left:0;top:8px;width:18px;height:2px}
.faq .plus::after{left:8px;top:0;width:2px;height:18px}
.faq details[open] .plus{transform:rotate(135deg)}
.faq details p{
  font-size:15px;color:var(--muted);line-height:1.8;max-width:720px;
  padding:0 32px 22px 0;
}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:28px;padding:56px;
  background:var(--grad);color:#fff;
}
.cta-band::before{
  content:"";position:absolute;right:-90px;top:-120px;width:420px;height:420px;
  border-radius:50%;background:rgba(255,255,255,.08);
}
.cta-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center}
.cta-grid h2{font-size:clamp(26px,3.4vw,34px);font-weight:800;line-height:1.3;margin-bottom:12px}
.cta-grid p{font-size:15px;color:rgba(255,255,255,.88);max-width:34em}
.cta-form{display:grid;gap:12px}
.cta-form label{font-size:13px;font-weight:600;color:rgba(255,255,255,.94)}
.cta-form input{
  width:100%;border:1px solid rgba(255,255,255,.55);border-radius:var(--r-sm);
  padding:13px 16px;font-size:14px;font-family:inherit;color:var(--ink);background:#fff;
  transition:box-shadow .18s,border-color .18s;
}
.cta-form input::placeholder{color:var(--weak)}
.cta-form input:focus{outline:none;border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.4)}
.cta-form .btn{width:100%;background:#fff;color:var(--primary-deep);box-shadow:0 12px 26px -14px rgba(28,25,23,.7)}
.cta-form .btn:hover{background:#FFF7EE;transform:translateY(-1px)}
.cta-note{font-size:12px;color:rgba(255,255,255,.78);margin-top:2px}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--dark);color:#fff;border-radius:28px;margin:0 24px 24px;
  padding:56px 0 0;
}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 2fr 4fr;gap:36px}
.footer-brand .brand-main{color:#fff}
.footer-brand .brand-sub{color:rgba(255,255,255,.62)}
.footer-about{font-size:14px;color:rgba(255,255,255,.7);line-height:1.8;margin-top:16px;max-width:30em}
.footer-key{font-size:12px;color:rgba(232,163,61,.9);letter-spacing:.04em;margin-top:14px}
.footer-col h4{font-size:13px;font-weight:700;letter-spacing:.08em;color:rgba(255,255,255,.55);margin-bottom:16px}
.footer-col a{
  display:block;font-size:14px;color:rgba(255,255,255,.82);padding:6px 0;transition:color .18s,transform .18s;
}
.footer-col a:hover{color:var(--accent);transform:translateX(3px)}
.footer-sub p{font-size:14px;color:rgba(255,255,255,.7);margin-bottom:14px}
.sub-form{display:flex;gap:10px;flex-wrap:wrap}
.sub-form input{
  flex:1 1 160px;min-width:0;padding:11px 14px;border-radius:999px;border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.08);color:#fff;font-size:14px;font-family:inherit;
}
.sub-form input::placeholder{color:rgba(255,255,255,.5)}
.sub-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(232,163,61,.25)}
.sub-form .btn{padding:11px 18px}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.78)}
.footer-bottom a:hover{color:var(--accent)}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .sec{padding:76px 0}
  .hero-grid{grid-template-columns:1fr;gap:36px;padding:64px 0 88px}
  .hero h1{max-width:100%}
  .hero-posters{flex-direction:row;gap:16px}
  .poster{flex:1 1 0;min-width:0}
  .poster--up,.poster--down{transform:none}
  .nav-links{display:none}
  .search-box{display:none}
  .menu-btn{display:inline-flex}
  .split{grid-template-columns:1fr}
  .matrix{grid-template-columns:repeat(2,1fr)}
  .matrix .m-large{grid-column:span 2;grid-row:auto}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .steps{grid-template-columns:1fr}
  .stat-band{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .sec{padding:56px 0}
  .sec-title{font-size:22px}
  .sec-head{margin-bottom:26px}
  .hero-posters{flex-direction:column}
  .rail > .card{flex:0 0 200px}
  .cta-band{padding:32px 22px;border-radius:22px}
  .site-footer{margin:0 12px 16px;padding-top:40px;border-radius:22px}
  .footer-grid{grid-template-columns:1fr}
  .matrix{grid-template-columns:1fr}
  .matrix .m-large{grid-column:auto}
  .grid-3{grid-template-columns:1fr}
  .feature-body{padding:22px}
  .mobile-drawer{padding:16px 20px 22px}
}
@media (max-width:520px){
  .hero-grid{padding:48px 0 72px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .stat-band{grid-template-columns:1fr}
  .mini-item{gap:10px}
  .mini-thumb{width:60px;height:60px;flex:0 0 60px}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category1 */
:root{
  --brand:#B8452F;
  --brand-deep:#8E3222;
  --accent:#E8A33D;
  --ink-blue:#2B3A42;
  --grad:linear-gradient(105deg,#B8452F 0%,#D9702F 50%,#E8A33D 100%);
  --bg:#FAF6F0;
  --surface:#FFFFFF;
  --fill:#F2EBE1;
  --line:#E6DED2;
  --ink:#1C1917;
  --ink-2:#5B534B;
  --ink-3:#8A8178;
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 1px 2px rgba(28,25,23,.05);
  --sh-2:0 14px 32px -14px rgba(28,25,23,.18);
  --sh-3:0 24px 56px -20px rgba(28,25,23,.24);
  --font:'Inter','Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
}
*,*::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:var(--font);
  font-size:15.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(184,69,47,.16);}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 28px;}
@media (max-width:640px){.container{padding:0 18px;}}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  height:68px;
  background:rgba(250,246,240,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  height:68px;display:flex;align-items:center;gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:22px;height:22px;border-radius:7px;background:var(--grad);
  position:relative;flex-shrink:0;
  box-shadow:0 2px 6px rgba(184,69,47,.28);
}
.brand-mark::after{
  content:"";position:absolute;left:5px;top:8px;width:12px;height:6px;
  border-left:1.5px solid #fff;border-bottom:1.5px solid #fff;
  transform:rotate(-45deg);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{font-size:15px;font-weight:800;letter-spacing:-.01em;color:var(--ink);}
.brand-sub{font-size:11px;font-weight:500;letter-spacing:.02em;color:var(--ink-2);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:8px;}
.nav-link{
  position:relative;font-size:14px;font-weight:500;color:var(--ink-2);
  padding:6px 0;transition:color .18s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;width:16px;height:2px;
  border-radius:2px;background:var(--grad);opacity:0;transform:translateY(2px);
  transition:opacity .18s ease,transform .18s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after,.nav-link.is-active::after{opacity:1;transform:translateY(0);}
.nav-link.is-active{color:var(--brand);font-weight:600;}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:240px;padding:8px 12px;
  background:var(--surface);border:1px solid var(--line);border-radius:999px;
  transition:width .22s ease,border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{
  width:320px;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(184,69,47,.18);
}
.search-box svg{flex-shrink:0;color:var(--ink-3);}
.search-box input{
  border:0;outline:none;background:transparent;width:100%;
  font-size:13.5px;color:var(--ink);
}
.search-box input::placeholder{color:var(--ink-3);}
.kbd{
  font-size:11px;font-weight:600;color:var(--ink-2);
  background:var(--fill);border-radius:999px;padding:2px 7px;flex-shrink:0;
  font-variant-numeric:tabular-nums;
}
.icon-btn{
  width:32px;height:32px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink-2);background:transparent;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.icon-btn:hover{background:var(--fill);color:var(--brand);}
.icon-btn:active{transform:scale(.94);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:14px;font-weight:600;border-radius:999px;
  padding:10px 20px;line-height:1.2;white-space:nowrap;
  transition:transform .18s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{
  background:var(--grad);color:#fff;
  box-shadow:0 6px 16px -8px rgba(184,69,47,.65);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 12px 24px -10px rgba(184,69,47,.7);}
.btn-primary:active{transform:translateY(.5px);box-shadow:0 4px 10px -8px rgba(184,69,47,.6);}
.btn-secondary{
  background:var(--surface);color:var(--ink);border:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.btn-secondary:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-size:14px;font-weight:600;padding:4px 0;
}
.btn-ghost .arrow{transition:transform .2s ease;}
.btn-ghost:hover .arrow{transform:translateX(3px);}
.menu-toggle{display:none;}

/* ============ BREADCRUMB ============ */
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);padding:22px 0 0;
}
.breadcrumb a{color:var(--ink-2);transition:color .18s ease;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--ink-3);opacity:.7;}
.breadcrumb .current{color:var(--brand);font-weight:600;}

/* ============ SECTION ============ */
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.12em;
  color:var(--brand);text-transform:uppercase;
}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--accent);}
h2.section-title{
  font-size:30px;font-weight:800;line-height:1.3;letter-spacing:-.015em;
  margin:12px 0 12px;
}
.section-desc{font-size:15px;color:var(--ink-2);max-width:640px;}
@media (max-width:768px){
  .section{padding:56px 0;}
  .section-head{margin-bottom:28px;}
  h2.section-title{font-size:22px;}
}

/* ============ HERO ============ */
.hero{
  position:relative;overflow:hidden;border-radius:0 0 var(--r-lg) var(--r-lg);
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  isolation:isolate;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(28,25,23,.55) 0%,rgba(28,25,23,.62) 55%,rgba(250,246,240,.98) 100%),
             linear-gradient(105deg,rgba(184,69,47,.45) 0%,rgba(217,112,47,.22) 50%,rgba(232,163,61,.10) 100%);
}
.hero-inner{
  padding:76px 0 84px;
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.9fr);
  gap:48px;align-items:center;
}
.hero-title{
  font-size:clamp(34px,5vw,58px);line-height:1.12;letter-spacing:-.02em;
  font-weight:800;color:#fff;margin:16px 0 18px;max-width:15em;
}
.hero-title em{
  font-style:normal;
  background:linear-gradient(105deg,#F6C97A,#E8A33D 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.86);
  max-width:34em;
}
.hero-sub::after{
  content:"";display:block;width:56px;height:3px;border-radius:3px;
  background:var(--accent);margin-top:20px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-actions .btn-secondary{
  background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.34);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.hero-actions .btn-secondary:hover{background:rgba(255,255,255,.2);color:#fff;border-color:#fff;}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;}
.stat-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  background:rgba(255,255,255,.94);border:1px solid var(--line);
  font-size:12px;color:var(--ink-2);box-shadow:var(--sh-1);
}
.stat-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex-shrink:0;}
.stat-badge .num{font-family:'Inter',sans-serif;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums;}
.hero-panel{
  background:rgba(255,255,255,.96);
  border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-3);
}
.hero-panel h3{font-size:17px;font-weight:800;margin-bottom:6px;}
.hero-panel p{font-size:13.5px;color:var(--ink-2);margin-bottom:18px;}
.panel-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;border-top:1px solid var(--line);
  font-size:14px;color:var(--ink-2);
}
.panel-list li:first-child{border-top:0;padding-top:0;}
.panel-list .tick{
  width:20px;height:20px;border-radius:6px;flex-shrink:0;
  background:var(--fill);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:11px;font-weight:800;margin-top:3px;
}
.panel-list strong{color:var(--ink);font-weight:700;}
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:36px;padding:56px 0 64px;}
  .hero-title{max-width:none;}
}
@media (max-width:640px){
  .hero-inner{padding:44px 0 52px;}
  .hero-actions .btn{width:100%;}
}

/* ============ FILTER + CARDS ============ */
.filter-layout{
  display:grid;grid-template-columns:240px minmax(0,1fr);gap:32px;align-items:start;
}
.filter-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--sh-1);position:sticky;top:92px;
}
.filter-group + .filter-group{margin-top:22px;padding-top:20px;border-top:1px solid var(--line);}
.filter-title{
  font-size:13px;font-weight:700;color:var(--ink);
  letter-spacing:.04em;margin-bottom:12px;
}
.filter-option{
  display:flex;align-items:center;gap:9px;width:100%;
  font-size:13.5px;color:var(--ink-2);padding:7px 0;
  text-align:left;transition:color .18s ease;
}
.filter-option:hover{color:var(--brand);}
.filter-option .box{
  width:15px;height:15px;border-radius:5px;border:1px solid var(--line);
  background:var(--surface);flex-shrink:0;display:inline-flex;
  align-items:center;justify-content:center;font-size:9px;color:#fff;
  transition:background .18s ease,border-color .18s ease;
}
.filter-option.is-on{color:var(--brand);font-weight:600;}
.filter-option.is-on .box{background:var(--brand);border-color:var(--brand);}
.filter-note{
  font-size:12.5px;color:var(--ink-3);line-height:1.7;
  background:var(--fill);border-radius:var(--r-sm);padding:12px 14px;margin-top:20px;
}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.entry-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;height:100%;
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(184,69,47,.35);}
.card-icon{
  width:40px;height:40px;border-radius:12px;background:var(--fill);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--brand);margin-bottom:16px;font-weight:800;font-size:16px;
}
.entry-card h3{font-size:17px;font-weight:700;line-height:1.45;margin-bottom:8px;}
.entry-card p{font-size:13.8px;color:var(--ink-2);line-height:1.8;}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  font-size:12.5px;color:var(--ink-2);background:var(--fill);
  border-radius:999px;padding:4px 11px;transition:background .18s ease,color .18s ease;
}
.tag:hover{background:rgba(184,69,47,.1);color:var(--brand);}
.entry-card .card-foot{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--ink-3);display:flex;align-items:center;justify-content:space-between;
}
.entry-card .card-foot .num{font-family:'Inter',sans-serif;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;}
@media (max-width:1024px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:900px){
  .filter-layout{grid-template-columns:1fr;gap:24px;}
  .filter-panel{position:static;padding:18px;}
  .filter-group + .filter-group{margin-top:14px;padding-top:14px;}
  .filter-panel .filter-scroll{display:flex;gap:8px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:6px;}
  .filter-panel .filter-scroll::-webkit-scrollbar{display:none;}
  .filter-option{
    flex:0 0 auto;scroll-snap-align:start;
    border:1px solid var(--line);border-radius:999px;
    padding:7px 14px;background:var(--surface);white-space:nowrap;
  }
  .filter-option .box{display:none;}
  .filter-option.is-on{background:rgba(184,69,47,.1);border-color:rgba(184,69,47,.4);}
  .filter-note{margin-top:14px;}
}
@media (max-width:640px){
  .card-grid{grid-template-columns:1fr;}
}

/* ============ STEPS ============ */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.step-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px 22px;box-shadow:var(--sh-1);position:relative;
  transition:transform .22s ease,box-shadow .22s ease;
}
.step-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.step-num{
  font-family:'Inter',sans-serif;font-weight:800;font-size:13px;
  color:var(--brand);background:rgba(184,69,47,.08);
  border-radius:999px;padding:3px 11px;display:inline-block;margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.step-item h3{font-size:16px;font-weight:700;margin-bottom:8px;line-height:1.5;}
.step-item p{font-size:13.6px;color:var(--ink-2);}
@media (max-width:1024px){.steps{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:560px){.steps{grid-template-columns:1fr;}}

/* ============ SPLIT ============ */
.split{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:48px;align-items:center;
}
.split-media{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-2);position:relative;
}
.split-media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;}
.split-media figcaption{
  position:absolute;left:16px;bottom:16px;
  background:rgba(28,25,23,.72);color:#fff;
  font-size:12.5px;padding:6px 12px;border-radius:999px;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.device-list li{
  display:flex;gap:14px;padding:16px 0;border-top:1px solid var(--line);
}
.device-list li:first-child{border-top:0;padding-top:0;}
.device-list .mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:var(--fill);color:var(--brand);font-weight:800;font-size:12px;
  display:inline-flex;align-items:center;justify-content:center;
}
.device-list h3{font-size:15.5px;font-weight:700;margin-bottom:4px;}
.device-list p{font-size:13.8px;color:var(--ink-2);}
@media (max-width:900px){
  .split{grid-template-columns:1fr;gap:28px;}
  .split-media img{aspect-ratio:16/10;}
}

/* ============ DARK BAND ============ */
.dark-band{
  background:var(--ink-blue);color:#fff;border-radius:28px;
  padding:56px;box-shadow:var(--sh-2);
}
.dark-band .eyebrow{color:var(--accent);}
.dark-band h2{font-size:30px;font-weight:800;letter-spacing:-.015em;margin:12px 0 12px;color:#fff;}
.dark-band .lead{font-size:14.5px;color:rgba(255,255,255,.72);max-width:620px;}
.hint-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:36px;}
.hint-card{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-md);padding:22px;
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.hint-card:hover{background:rgba(255,255,255,.1);border-color:rgba(232,163,61,.5);transform:translateY(-3px);}
.hint-card h3{font-size:15.5px;font-weight:700;margin-bottom:8px;color:#fff;}
.hint-card p{font-size:13.5px;color:rgba(255,255,255,.72);}
.hint-card .code{
  display:inline-block;margin-bottom:12px;font-family:'Inter',sans-serif;
  font-size:11.5px;font-weight:700;letter-spacing:.08em;color:var(--accent);
  border:1px solid rgba(232,163,61,.4);border-radius:999px;padding:3px 10px;
}
@media (max-width:1024px){.hint-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:768px){
  .dark-band{padding:32px 22px;border-radius:22px;}
  .dark-band h2{font-size:22px;}
  .hint-grid{grid-template-columns:1fr;}
}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.5fr);gap:48px;align-items:start;}
.faq{max-width:720px;width:100%;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
  padding:20px 0;font-size:16px;font-weight:600;color:var(--ink);
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-item .plus{
  margin-left:auto;width:22px;height:22px;flex-shrink:0;position:relative;
  transition:transform .2s ease;
}
.faq-item .plus::before,
.faq-item .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
}
.faq-item .plus::before{width:12px;height:2px;transform:translate(-50%,-50%);}
.faq-item .plus::after{width:2px;height:12px;transform:translate(-50%,-50%);}
.faq-item[open] .plus{transform:rotate(45deg);}
.faq-answer{
  padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:680px;
}
.faq-item[open] summary{color:var(--brand);}
@media (max-width:900px){
  .faq-layout{grid-template-columns:1fr;gap:28px;}
}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--grad);
  border-radius:28px;padding:56px;
  box-shadow:0 24px 48px -24px rgba(184,69,47,.55);
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.85fr);
  gap:40px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;
  border-radius:50%;background:rgba(255,255,255,.08);pointer-events:none;
}
.cta-band h2{font-size:30px;font-weight:800;color:#fff;line-height:1.3;letter-spacing:-.015em;}
.cta-band p{font-size:14.5px;color:rgba(255,255,255,.9);margin-top:12px;max-width:30em;}
.cta-form{
  position:relative;z-index:1;
  display:flex;flex-direction:column;gap:12px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);
  border-radius:var(--r-md);padding:22px;
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.field label{display:block;font-size:13px;font-weight:600;color:#fff;margin-bottom:6px;}
.field input{
  width:100%;background:#fff;border:1px solid transparent;border-radius:var(--r-sm);
  padding:13px 16px;font-size:14px;color:var(--ink);outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:var(--ink-3);}
.field input:focus{border-color:var(--brand-deep);box-shadow:0 0 0 3px rgba(255,255,255,.4);}
.cta-form .btn{width:100%;background:#fff;color:var(--brand-deep);box-shadow:none;}
.cta-form .btn:hover{transform:translateY(-1px);box-shadow:0 10px 20px -12px rgba(28,25,23,.5);}
.form-note{font-size:12px;color:rgba(255,255,255,.82);line-height:1.7;}
@media (max-width:900px){
  .cta-band{grid-template-columns:1fr;padding:34px 22px;border-radius:22px;gap:26px;}
  .cta-band h2{font-size:22px;}
}

/* ============ FOOTER ============ */
.site-footer{
  background:var(--ink-blue);color:#fff;
  border-radius:28px;margin:64px 24px 24px;
  padding:56px 0 28px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-main{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.62);}
.footer-about{font-size:13.5px;color:rgba(255,255,255,.7);line-height:1.8;max-width:30em;}
.footer-key{
  font-size:12.5px;color:var(--accent);margin-top:14px;letter-spacing:.02em;
}
.footer-col h4,.footer-sub h4{
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:rgba(255,255,255,.55);margin:0 0 16px;
}
.footer-col a{
  display:block;font-size:14px;color:rgba(255,255,255,.82);
  padding:6px 0;transition:color .18s ease,transform .18s ease;
}
.footer-col a:hover{color:var(--accent);transform:translateX(2px);}
.footer-sub p{font-size:13.5px;color:rgba(255,255,255,.7);margin-bottom:14px;}
.sub-form{display:flex;flex-direction:column;gap:10px;}
.sub-form input{
  width:100%;border-radius:999px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.08);color:#fff;
  padding:11px 16px;font-size:13.5px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.sub-form input::placeholder{color:rgba(255,255,255,.5);}
.sub-form input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(232,163,61,.22);}
.sub-form .btn{width:100%;}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.78);transition:color .18s ease;}
.footer-bottom a:hover{color:var(--accent);}
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .site-footer{margin:44px 14px 16px;padding:36px 0 22px;border-radius:22px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;}
}

/* ============ MOBILE NAV ============ */
.mobile-drawer{
  position:fixed;inset:0;z-index:80;display:none;
}
.mobile-drawer.is-open{display:block;}
.drawer-mask{position:absolute;inset:0;background:rgba(28,25,23,.45);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);}
.drawer-panel{
  position:relative;background:var(--bg);
  padding:20px;border-radius:0 0 22px 22px;
  box-shadow:var(--sh-3);animation:slideDown .24s ease;
}
@keyframes slideDown{from{transform:translateY(-16px);opacity:.4;}to{transform:translateY(0);opacity:1;}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.drawer-panel .search-box{width:100%;margin-bottom:16px;}
.drawer-links a{
  display:flex;align-items:center;min-height:44px;
  font-size:15px;font-weight:500;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.drawer-links a.is-active{color:var(--brand);font-weight:700;}
.drawer-panel .btn-primary{width:100%;margin-top:18px;}
@media (max-width:1080px){
  .nav-links{display:none;}
  .search-box{display:none;}
  .icon-btn.quick{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-cta{display:none;}
}
@media (max-width:520px){
  .brand-sub{font-size:10.5px;}
  .brand-main{font-size:14px;}
}

/* roulang page: article */
:root{
    --brand:#B8452F;
    --brand-deep:#8E3222;
    --gold:#E8A33D;
    --slate:#2B3A42;
    --bg:#FAF6F0;
    --surface:#FFFFFF;
    --fill:#F2EBE1;
    --line:#E6DED2;
    --ink:#1C1917;
    --ink-2:#5B534B;
    --ink-3:#8A8178;
    --grad:linear-gradient(105deg,#B8452F 0%,#D9702F 50%,#E8A33D 100%);
    --r-lg:22px;
    --r-md:16px;
    --r-sm:12px;
    --sh-1:0 1px 2px rgba(28,25,23,.05);
    --sh-2:0 14px 32px -14px rgba(28,25,23,.18);
    --sh-3:0 24px 56px -20px rgba(28,25,23,.24);
    --maxw:1200px;
  }
  html{scroll-behavior:smooth;}
  .page-article{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:'Inter','Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
    font-size:15.5px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  .page-article *,.page-article *::before,.page-article *::after{box-sizing:border-box;}
  .page-article img{max-width:100%;display:block;}
  .page-article a{color:inherit;text-decoration:none;}
  .page-article button{font-family:inherit;}
  .page-article :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
  .container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 28px;}
  .num{font-variant-numeric:tabular-nums;font-family:'Inter',sans-serif;}

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(250,246,240,.86);
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line);
  }
  .header-inner{
    max-width:var(--maxw);margin:0 auto;padding:0 28px;height:68px;
    display:flex;align-items:center;gap:28px;
  }
  .brand-link{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .brand-mark{
    position:relative;width:22px;height:22px;border-radius:7px;
    background:var(--grad);box-shadow:0 6px 14px -8px rgba(184,69,47,.9);
    flex:0 0 auto;
  }
  .brand-mark::after{
    content:"";position:absolute;left:6px;top:7px;width:9px;height:8px;
    border-left:1.5px solid #fff;border-bottom:1.5px solid #fff;
    transform:rotate(-45deg);transform-origin:center;
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.15;}
  .brand-main{font-size:15px;font-weight:800;letter-spacing:.01em;color:var(--ink);}
  .brand-sub{font-size:11px;font-weight:500;letter-spacing:.02em;color:var(--ink-2);white-space:nowrap;}
  .nav-links{display:flex;align-items:center;gap:28px;margin-right:auto;}
  .nav-link{
    position:relative;display:inline-block;padding:6px 0;
    font-size:14px;font-weight:500;color:var(--ink-2);
    transition:color .18s ease;
  }
  .nav-link::after{
    content:"";position:absolute;left:0;bottom:0;width:16px;height:2px;
    background:var(--grad);border-radius:2px;opacity:0;transform:translateY(3px);
    transition:opacity .18s ease,transform .18s ease;
  }
  .nav-link:hover{color:var(--brand);}
  .nav-link:hover::after{opacity:1;transform:translateY(0);}
  .nav-link.is-active{color:var(--brand);font-weight:600;}
  .nav-link.is-active::after{opacity:1;transform:translateY(0);}
  .header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
  .cmd-search{
    display:flex;align-items:center;gap:8px;width:240px;height:38px;padding:0 12px;
    background:var(--surface);border:1px solid var(--line);border-radius:999px;
    transition:width .22s ease,box-shadow .22s ease,border-color .22s ease;
  }
  .cmd-search:focus-within{width:320px;border-color:rgba(184,69,47,.5);box-shadow:0 0 0 3px rgba(184,69,47,.18);}
  .cmd-search svg{flex:0 0 auto;color:var(--ink-3);}
  .cmd-search input{
    width:100%;border:0;background:transparent;outline:none;
    font-size:13px;color:var(--ink);
  }
  .cmd-search input::placeholder{color:var(--ink-3);}
  .kbd{
    flex:0 0 auto;font-size:11px;line-height:1;padding:3px 6px;border-radius:6px;
    background:var(--fill);color:var(--ink-2);font-variant-numeric:tabular-nums;
  }
  .icon-btn{
    width:32px;height:32px;border-radius:50%;display:grid;place-items:center;
    border:1px solid transparent;background:transparent;color:var(--ink-2);
    cursor:pointer;transition:background .18s ease,color .18s ease;
  }
  .icon-btn:hover{background:var(--fill);color:var(--brand);}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    font-size:14px;font-weight:600;line-height:1;border-radius:999px;
    padding:12px 20px;border:1px solid transparent;cursor:pointer;
    transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  }
  .btn-primary{
    background:var(--grad);color:#fff;
    box-shadow:0 10px 22px -12px rgba(184,69,47,.75);
  }
  .btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 28px -12px rgba(184,69,47,.8);}
  .btn-primary:active{transform:translateY(.5px);box-shadow:0 6px 14px -10px rgba(184,69,47,.8);}
  .btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line);}
  .btn-ghost:hover{border-color:rgba(184,69,47,.45);color:var(--brand);}
  .btn-text{
    display:inline-flex;align-items:center;gap:6px;color:var(--brand);
    font-size:14px;font-weight:600;
  }
  .btn-text span{transition:transform .18s ease;}
  .btn-text:hover span{transform:translateX(3px);}
  .menu-btn{
    display:none;width:36px;height:36px;border-radius:10px;place-items:center;
    border:1px solid var(--line);background:var(--surface);color:var(--ink-2);cursor:pointer;
  }
  .menu-btn:hover{color:var(--brand);border-color:rgba(184,69,47,.45);}
  .mobile-drawer{
    position:absolute;left:0;right:0;top:100%;display:none;
    background:var(--surface);border-bottom:1px solid var(--line);
    box-shadow:var(--sh-3);padding:16px 18px 22px;
  }
  .mobile-drawer.is-open{display:block;}
  .drawer-search{
    display:flex;align-items:center;gap:8px;height:42px;padding:0 14px;margin-bottom:12px;
    border:1px solid var(--line);border-radius:999px;background:var(--bg);
  }
  .drawer-search input{width:100%;border:0;background:transparent;outline:none;font-size:14px;color:var(--ink);}
  .drawer-link{
    display:flex;align-items:center;height:44px;font-size:15px;font-weight:500;
    color:var(--ink-2);border-bottom:1px solid var(--line);
  }
  .drawer-link:hover{color:var(--brand);}
  .drawer-cta{margin-top:16px;width:100%;}

  /* ---------- Article hero ---------- */
  .article-hero{
    position:relative;
    padding:44px 0 40px;
    background-image:
      linear-gradient(100deg,rgba(250,246,240,.97) 0%,rgba(250,246,240,.9) 48%,rgba(250,246,240,.62) 100%),
      url('/assets/images/backpic/back-2.webp');
    background-size:cover;
    background-position:center;
    border-bottom:1px solid var(--line);
  }
  .breadcrumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;color:var(--ink-3);margin-bottom:20px;
  }
  .breadcrumb a:hover{color:var(--brand);}
  .breadcrumb .sep{color:var(--ink-3);opacity:.6;}
  .breadcrumb .current{color:var(--brand);font-weight:600;}
  .article-title{
    font-size:clamp(26px,4vw,44px);
    line-height:1.25;
    font-weight:800;
    letter-spacing:-.02em;
    color:var(--ink);
    max-width:900px;
  }
  .article-meta{
    display:flex;flex-wrap:wrap;align-items:center;gap:16px;
    margin-top:22px;font-size:13px;color:var(--ink-2);
  }
  .chip{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 12px;border-radius:999px;background:var(--fill);
    font-size:13px;font-weight:600;color:var(--brand);
  }
  .chip::before{
    content:"";width:6px;height:6px;border-radius:50%;background:var(--gold);
  }
  .meta-dot{width:4px;height:4px;border-radius:50%;background:var(--line);}

  /* ---------- Layout ---------- */
  .article-main{padding:56px 0 72px;}
  .article-wrap{
    display:grid;grid-template-columns:minmax(0,760px) 280px;
    gap:48px;justify-content:center;align-items:start;
  }
  .article-body{max-width:760px;}
  .article-body > *:first-child{margin-top:0;}
  .article-body p{margin:0 0 18px;font-size:15.5px;line-height:1.9;color:var(--ink);}
  .article-body h2{
    position:relative;font-size:26px;line-height:1.4;font-weight:800;
    margin:40px 0 14px;padding-left:16px;letter-spacing:-.01em;color:var(--ink);
  }
  .article-body h2::before{
    content:"";position:absolute;left:0;top:8px;width:4px;height:18px;
    border-radius:2px;background:var(--grad);
  }
  .article-body h3{font-size:20px;font-weight:700;margin:30px 0 12px;color:var(--ink);}
  .article-body h4{font-size:17px;font-weight:700;margin:24px 0 10px;color:var(--ink);}
  .article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;line-height:1.9;}
  .article-body li{margin-bottom:8px;}
  .article-body ul li::marker{color:var(--brand);}
  .article-body ol li::marker{color:var(--brand);font-weight:700;}
  .article-body blockquote{
    margin:24px 0;padding:20px 22px;border-left:3px solid var(--brand);
    background:var(--fill);border-radius:0 14px 14px 0;color:var(--ink-2);
  }
  .article-body blockquote p:last-child{margin-bottom:0;}
  .article-body img{border-radius:14px;margin:24px 0 10px;}
  .article-body figure{margin:24px 0;}
  .article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px;}
  .article-body table{
    width:100%;border-collapse:collapse;margin:24px 0;font-size:14.5px;
    border:1px solid var(--line);border-radius:12px;overflow:hidden;
  }
  .article-body th,.article-body td{
    border:1px solid var(--line);padding:10px 14px;text-align:left;line-height:1.7;
  }
  .article-body th{background:var(--fill);font-weight:700;color:var(--ink);}
  .article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
  .article-body a:hover{color:var(--brand-deep);}
  .article-body code{
    background:var(--fill);padding:2px 6px;border-radius:6px;font-size:13.5px;color:var(--brand-deep);
  }
  .article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

  /* ---------- Sidebar ---------- */
  .article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:24px;}
  .side-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
    padding:20px;box-shadow:var(--sh-1);
  }
  .side-title{
    font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--ink-3);
    text-transform:uppercase;margin-bottom:14px;
  }
  .toc-list{display:flex;flex-direction:column;gap:2px;}
  .toc-link{
    display:block;padding:7px 0 7px 12px;font-size:14px;line-height:1.5;
    color:var(--ink-2);border-left:2px solid transparent;
    transition:color .18s ease,border-color .18s ease;
  }
  .toc-link:hover{color:var(--brand);border-left-color:rgba(184,69,47,.35);}
  .toc-sub{padding-left:24px;font-size:13px;color:var(--ink-3);}
  .rel-list{display:flex;flex-direction:column;gap:14px;}
  .rel-item{display:flex;gap:12px;align-items:flex-start;}
  .rel-thumb{
    width:56px;height:42px;border-radius:10px;object-fit:cover;flex:0 0 auto;
    border:1px solid var(--line);
  }
  .rel-item h4{font-size:14px;font-weight:600;line-height:1.5;margin:0 0 4px;color:var(--ink);}
  .rel-item:hover h4{color:var(--brand);}
  .rel-item p{font-size:12px;color:var(--ink-3);margin:0;line-height:1.5;}
  .side-cta{background:var(--slate);color:#fff;border-color:transparent;}
  .side-cta .side-title{color:rgba(255,255,255,.55);}
  .side-cta p{font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.78);margin:0 0 16px;}
  .side-cta .btn{width:100%;}

  /* ---------- Empty state ---------- */
  .article-empty{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
    padding:56px 28px;text-align:center;box-shadow:var(--sh-1);
  }
  .empty-icon{
    width:56px;height:56px;border-radius:16px;background:var(--fill);
    display:grid;place-items:center;margin:0 auto 18px;color:var(--brand);
  }
  .empty-title{font-size:20px;font-weight:700;margin:0 0 8px;color:var(--ink);}
  .empty-desc{font-size:14.5px;color:var(--ink-2);margin:0 0 22px;}

  /* ---------- Section common ---------- */
  .section{padding:72px 0;}
  .section-head{max-width:680px;margin-bottom:36px;}
  .eyebrow{
    display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;
    color:var(--brand);margin-bottom:12px;
  }
  .section-title{font-size:30px;line-height:1.3;font-weight:800;letter-spacing:-.01em;margin:0 0 12px;}
  .section-desc{font-size:15px;line-height:1.8;color:var(--ink-2);margin:0;}
  .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  .card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
    overflow:hidden;box-shadow:var(--sh-1);
    transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
    display:flex;flex-direction:column;
  }
  .card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(184,69,47,.35);}
  .card-media{overflow:hidden;aspect-ratio:16/9;background:var(--fill);}
  .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
  .card:hover .card-media img{transform:scale(1.04);}
  .card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .card-body h3{font-size:17px;font-weight:700;line-height:1.5;margin:0;color:var(--ink);}
  .card-body p{font-size:14px;line-height:1.75;color:var(--ink-2);margin:0;}
  .tag{
    display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;
    background:var(--fill);font-size:12px;font-weight:600;color:var(--ink-2);
    transition:background .18s ease,color .18s ease;
  }
  .card:hover .tag{background:rgba(184,69,47,.1);color:var(--brand);}
  .card-foot{
    margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
    display:flex;align-items:center;justify-content:space-between;
    font-size:13px;color:var(--ink-3);
  }

  /* ---------- Back link ---------- */
  .back-row{display:flex;justify-content:center;padding-top:36px;}

  /* ---------- FAQ ---------- */
  .faq-wrap{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px;}
  .faq-list{border-top:1px solid var(--line);}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item summary{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 0;font-size:16px;font-weight:600;color:var(--ink);
    cursor:pointer;list-style:none;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{color:var(--brand);}
  .faq-mark{
    position:relative;flex:0 0 auto;width:20px;height:20px;border-radius:50%;
    background:var(--fill);transition:transform .2s ease,background .2s ease;
  }
  .faq-mark::before,.faq-mark::after{
    content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
    transform:translate(-50%,-50%);
  }
  .faq-mark::before{width:10px;height:1.5px;}
  .faq-mark::after{width:1.5px;height:10px;transition:opacity .2s ease;}
  .faq-item[open] .faq-mark{background:rgba(184,69,47,.12);}
  .faq-item[open] .faq-mark::after{opacity:0;}
  .faq-answer{padding:0 0 22px;max-width:720px;}
  .faq-answer p{font-size:15px;line-height:1.8;color:var(--ink-2);margin:0 0 10px;}
  .faq-answer p:last-child{margin-bottom:0;}

  /* ---------- CTA ---------- */
  .cta-band{
    position:relative;overflow:hidden;border-radius:28px;padding:56px;
    background:linear-gradient(105deg,#B8452F 0%,#D9702F 50%,#E8A33D 100%);
    color:#fff;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;
  }
  .cta-band::after{
    content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;
    border-radius:50%;background:rgba(255,255,255,.08);pointer-events:none;
  }
  .cta-band h2{font-size:clamp(22px,3vw,30px);line-height:1.35;font-weight:800;margin:0 0 12px;}
  .cta-band p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.9);margin:0;max-width:460px;}
  .cta-form{position:relative;z-index:1;display:flex;flex-direction:column;gap:12px;}
  .cta-form label{font-size:12px;font-weight:600;letter-spacing:.06em;color:rgba(255,255,255,.85);}
  .cta-form input{
    width:100%;padding:13px 16px;border-radius:12px;border:1px solid transparent;
    background:#fff;color:var(--ink);font-size:14.5px;outline:none;
    transition:box-shadow .18s ease,border-color .18s ease;
  }
  .cta-form input::placeholder{color:var(--ink-3);}
  .cta-form input:focus{border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.4);}
  .cta-form .btn{background:var(--slate);color:#fff;box-shadow:0 12px 26px -14px rgba(28,25,23,.7);}
  .cta-form .btn:hover{background:#223038;transform:translateY(-1px);}
  .cta-note{font-size:12px;color:rgba(255,255,255,.75);margin:2px 0 0;}

  /* ---------- Footer ---------- */
  .site-footer{
    margin:0 24px 24px;background:var(--slate);color:#fff;
    border-radius:28px;padding:56px 0 0;
  }
  .site-footer .container{padding:0 40px;}
  .footer-grid{
    display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;
    padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.12);
  }
  .footer-brand .brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
  .footer-brand .brand-main{color:#fff;}
  .footer-brand .brand-sub{color:rgba(255,255,255,.6);}
  .footer-about{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.72);margin:0 0 14px;max-width:320px;}
  .footer-key{font-size:12.5px;letter-spacing:.02em;color:rgba(255,255,255,.5);margin:0;}
  .footer-col h4{font-size:13px;font-weight:700;letter-spacing:.08em;color:rgba(255,255,255,.55);margin:0 0 16px;}
  .footer-col a{
    display:block;font-size:14px;color:rgba(255,255,255,.82);padding:7px 0;
    transition:color .18s ease,transform .18s ease;
  }
  .footer-col a:hover{color:var(--gold);transform:translateX(2px);}
  .footer-sub p{font-size:13.5px;line-height:1.75;color:rgba(255,255,255,.72);margin:0 0 14px;}
  .sub-form{display:flex;gap:10px;flex-wrap:wrap;}
  .sub-form input{
    flex:1 1 150px;min-width:0;padding:11px 14px;border-radius:12px;
    border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);
    color:#fff;font-size:13.5px;outline:none;transition:border-color .18s ease,box-shadow .18s ease;
  }
  .sub-form input::placeholder{color:rgba(255,255,255,.45);}
  .sub-form input:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(232,163,61,.22);}
  .sub-form .btn{padding:11px 18px;font-size:13.5px;}
  .footer-bottom{
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
    padding:20px 0 26px;font-size:12.5px;color:rgba(255,255,255,.55);
  }
  .footer-bottom a{color:rgba(255,255,255,.75);text-decoration:underline;text-underline-offset:3px;}
  .footer-bottom a:hover{color:var(--gold);}

  /* ---------- Responsive ---------- */
  @media (max-width:1220px){
    .cmd-search{width:190px;}
    .cmd-search:focus-within{width:230px;}
  }
  @media (max-width:1024px){
    .nav-links{display:none;}
    .cmd-search{display:none;}
    .header-cta{display:none;}
    .menu-btn{display:grid;}
    .article-wrap{grid-template-columns:minmax(0,1fr);gap:40px;}
    .article-side{position:static;order:2;}
    .article-body,.article-wrap{max-width:100%;}
    .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
    .faq-wrap{grid-template-columns:minmax(0,1fr);gap:28px;}
    .cta-band{grid-template-columns:minmax(0,1fr);gap:32px;padding:40px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
    .site-footer .container{padding:0 28px;}
  }
  @media (max-width:768px){
    .container{padding:0 18px;}
    .header-inner{padding:0 18px;gap:14px;height:62px;}
    .article-hero{padding:32px 0 30px;}
    .article-main{padding:40px 0 56px;}
    .section{padding:52px 0;}
    .section-title{font-size:24px;}
    .article-body h2{font-size:22px;}
    .article-body h3{font-size:18px;}
    .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
    .grid-3{grid-template-columns:minmax(0,1fr);}
    .cta-band{padding:32px 22px;border-radius:22px;}
    .site-footer{margin:0 12px 16px;border-radius:22px;padding-top:40px;}
    .site-footer .container{padding:0 20px;}
    .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
  }
  @media (max-width:520px){
    .brand-main{font-size:14px;}
    .brand-sub{font-size:10.5px;}
    .article-meta{gap:10px;font-size:12.5px;}
    .article-body p{font-size:15px;}
    .faq-item summary{font-size:15px;}
  }
  @media (min-width:1025px){
    .mobile-drawer{display:none !important;}
  }

/* roulang page: category2 */
:root{
  --brand:#B8452F;
  --brand-deep:#8E3222;
  --accent:#E8A33D;
  --ink:#1C1917;
  --muted:#5B534B;
  --weak:#8A8178;
  --bg:#FAF6F0;
  --surface:#FFFFFF;
  --fill:#F2EBE1;
  --line:#E6DED2;
  --dark:#2B3A42;
  --grad:linear-gradient(105deg,#B8452F 0%,#D9702F 50%,#E8A33D 100%);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 1px 2px rgba(28,25,23,.05);
  --sh-2:0 14px 32px -14px rgba(28,25,23,.18);
  --sh-3:0 24px 56px -20px rgba(28,25,23,.24);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'Inter','Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:15.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:800;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(184,69,47,.16)}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 28px}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px}
.section-head h2{font-size:30px}
.section-head p{color:var(--muted);font-size:14.5px;max-width:520px;margin-top:10px}
.h2-line{display:inline-block;width:34px;height:3px;border-radius:999px;background:var(--grad);margin-bottom:14px}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,246,240,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:22px;height:22px;border-radius:7px;
  background:var(--grad);
  position:relative;display:inline-block;flex-shrink:0;
}
.brand-mark::after{
  content:"";position:absolute;inset:0;margin:auto;
  width:10px;height:6px;
  border-left:1.5px solid #fff;border-bottom:1.5px solid #fff;
  transform:rotate(-45deg) translateY(-1px);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-main{font-size:16px;font-weight:800;letter-spacing:-.01em}
.brand-sub{font-size:11px;font-weight:500;letter-spacing:.02em;color:var(--muted);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:8px}
.nav-link{
  position:relative;font-size:14px;font-weight:500;color:var(--muted);
  padding:6px 0;transition:color .18s var(--ease);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:16px;
  background:var(--grad);border-radius:999px;opacity:0;transform:scaleX(.4);
  transform-origin:left;transition:opacity .18s var(--ease),transform .18s var(--ease);
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{opacity:1;transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{opacity:1;transform:scaleX(1)}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.header-search{
  display:flex;align-items:center;gap:8px;
  background:var(--surface);border:1px solid var(--line);border-radius:999px;
  padding:0 10px 0 12px;height:38px;width:240px;
  transition:width .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.header-search:focus-within{width:320px;border-color:rgba(184,69,47,.45);box-shadow:0 0 0 3px rgba(184,69,47,.18)}
.header-search svg{flex-shrink:0;color:var(--weak)}
.header-search input{
  border:0;background:transparent;outline:none;font-size:13.5px;color:var(--ink);
  width:100%;min-width:0;
}
.header-search input::placeholder{color:var(--weak)}
.key-hint{
  font-size:11px;color:var(--muted);background:var(--fill);border-radius:999px;
  padding:2px 7px;white-space:nowrap;flex-shrink:0;
}
.icon-btn{
  width:34px;height:34px;border-radius:999px;border:1px solid transparent;
  display:flex;align-items:center;justify-content:center;color:var(--muted);
  transition:background .18s var(--ease),color .18s var(--ease);
}
.icon-btn:hover{background:var(--fill);color:var(--brand)}
.menu-toggle{display:none;width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:var(--surface);align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer}
.menu-toggle span{display:block;width:16px;height:1.8px;background:var(--ink);border-radius:2px;transition:transform .22s var(--ease),opacity .22s var(--ease)}
.menu-toggle.is-active span:nth-child(1){transform:translateY(5.8px) rotate(45deg)}
.menu-toggle.is-active span:nth-child(2){opacity:0}
.menu-toggle.is-active span:nth-child(3){transform:translateY(-5.8px) rotate(-45deg)}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:var(--bg);
  padding:16px 0 22px;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer .drawer-search{
  display:flex;align-items:center;gap:8px;background:var(--surface);
  border:1px solid var(--line);border-radius:999px;height:44px;padding:0 14px;margin-bottom:14px;
}
.mobile-drawer .drawer-search input{border:0;outline:none;background:transparent;width:100%;font-size:14px}
.mobile-drawer .drawer-link{
  display:flex;align-items:center;height:44px;font-size:15px;color:var(--muted);
  border-bottom:1px solid rgba(230,222,210,.7);
}
.mobile-drawer .drawer-link.is-active{color:var(--brand);font-weight:600}
.mobile-drawer .btn{width:100%;margin-top:16px}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-size:14px;font-weight:600;line-height:1;
  padding:13px 22px;border:1px solid transparent;cursor:pointer;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 20px -12px rgba(184,69,47,.75)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 14px 26px -12px rgba(184,69,47,.65)}
.btn-primary:active{transform:translateY(.5px);box-shadow:0 6px 14px -10px rgba(184,69,47,.7)}
.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:rgba(184,69,47,.5);color:var(--brand)}
.btn-sm{padding:10px 18px;font-size:13.5px}
.text-btn{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);
  font-size:14px;font-weight:600;transition:gap .18s var(--ease),color .18s var(--ease);
}
.text-btn:hover{gap:11px;color:var(--brand-deep)}
.text-btn svg{transition:transform .18s var(--ease)}
.text-btn:hover svg{transform:translateX(3px)}

/* ============ badge / chip ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;color:var(--muted);background:var(--surface);
  border:1px solid var(--line);border-radius:999px;padding:5px 12px;
  font-variant-numeric:tabular-nums;
}
.badge .dot{width:6px;height:6px;border-radius:999px;background:var(--accent)}
.badge .dot.is-brand{background:var(--brand)}
.badge strong{font-family:'Inter',sans-serif;font-weight:700;color:var(--ink)}
.chip{
  display:inline-flex;align-items:center;font-size:13px;color:var(--muted);
  background:var(--fill);border-radius:999px;padding:5px 12px;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.chip:hover{background:rgba(184,69,47,.1);color:var(--brand)}
.badge-row{display:flex;flex-wrap:wrap;gap:10px}

/* ============ page head ============ */
.page-head{
  position:relative;
  padding:34px 0 64px;
  background-image:linear-gradient(180deg,rgba(250,246,240,.93) 0%,rgba(250,246,240,.97) 62%,#FAF6F0 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--weak);margin-bottom:26px}
.breadcrumb a{color:var(--muted);transition:color .18s var(--ease)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .current{color:var(--brand);font-weight:600}
.page-head-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.12em;color:var(--brand);
  font-weight:700;text-transform:uppercase;margin-bottom:14px;
}
.page-head h1{font-size:clamp(30px,3.6vw,44px);letter-spacing:-.02em;max-width:16em}
.page-head .lead{margin-top:16px;color:var(--muted);font-size:15.5px;max-width:36em}
.page-head .badge-row{margin-top:24px}
.head-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.head-figure{
  border-radius:var(--r-lg);overflow:hidden;border:5px solid #fff;
  box-shadow:var(--sh-3);background:var(--surface);
}
.head-figure img{width:100%;height:280px;object-fit:cover}

/* ============ tabs ============ */
.tabbar-wrap{border-bottom:1px solid var(--line);background:var(--bg)}
.tabbar{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none}
.tabbar::-webkit-scrollbar{display:none}
.tab{
  position:relative;flex-shrink:0;background:transparent;border:0;cursor:pointer;
  font-size:14px;font-weight:500;color:var(--muted);padding:18px 16px;
  transition:color .18s var(--ease);
}
.tab::after{
  content:"";position:absolute;left:16px;right:16px;bottom:-1px;height:2.5px;
  border-radius:999px;background:var(--grad);opacity:0;transform:scaleX(.5);
  transition:opacity .2s var(--ease),transform .2s var(--ease);
}
.tab:hover{color:var(--ink)}
.tab.is-active{color:var(--brand);font-weight:600}
.tab.is-active::after{opacity:1;transform:scaleX(1)}

/* ============ security cards ============ */
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.sec-card{
  position:relative;display:flex;gap:0;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.sec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(184,69,47,.35)}
.sec-card.is-hidden{display:none}
.sec-thumb{width:210px;flex-shrink:0;overflow:hidden;background:var(--fill)}
.sec-thumb img{width:100%;height:100%;min-height:200px;object-fit:cover;transition:transform .4s var(--ease)}
.sec-card:hover .sec-thumb img{transform:scale(1.04)}
.sec-body{padding:22px 26px 22px 24px;min-width:0;display:flex;flex-direction:column}
.sec-body h3{font-size:18px;margin-bottom:8px;padding-right:66px}
.sec-body p{font-size:14px;color:var(--muted);line-height:1.75;flex:1}
.sec-body .text-btn{margin-top:14px;font-size:13.5px}
.card-flag{
  position:absolute;top:16px;right:16px;z-index:2;
  font-size:11.5px;font-weight:700;color:var(--brand);
  background:rgba(184,69,47,.09);border:1px solid rgba(184,69,47,.22);
  border-radius:999px;padding:3px 10px;font-variant-numeric:tabular-nums;
}

/* ============ dark steps ============ */
.dark-band{
  background:var(--dark);color:#fff;border-radius:28px;
  padding:56px 48px;position:relative;overflow:hidden;
}
.dark-band::before{
  content:"";position:absolute;width:380px;height:380px;border-radius:50%;
  right:-120px;top:-140px;background:rgba(232,163,61,.14);filter:blur(6px);
}
.dark-band h2{font-size:30px;max-width:20em}
.dark-band .dark-lead{color:rgba(255,255,255,.72);font-size:14.5px;margin-top:12px;max-width:600px}
.step-list{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:38px;position:relative}
.step-item{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-md);padding:24px 22px;
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.step-item:hover{background:rgba(255,255,255,.09);transform:translateY(-3px)}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:9px;background:var(--grad);
  font-size:13px;font-weight:700;font-family:'Inter',sans-serif;margin-bottom:16px;
}
.step-item h3{font-size:17px;margin-bottom:8px}
.step-item p{font-size:13.5px;color:rgba(255,255,255,.72);line-height:1.75}

/* ============ checklist ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.check-list{display:flex;flex-direction:column;gap:2px;margin-top:26px}
.check-item{
  display:flex;gap:14px;padding:18px 4px;border-bottom:1px solid var(--line);
}
.check-item:last-child{border-bottom:0}
.check-icon{
  width:26px;height:26px;border-radius:8px;flex-shrink:0;
  background:rgba(184,69,47,.09);color:var(--brand);
  display:flex;align-items:center;justify-content:center;margin-top:2px;
}
.check-item h4{font-size:15.5px;font-weight:700;margin-bottom:4px}
.check-item p{font-size:13.8px;color:var(--muted)}
.figure-card{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);border:1px solid var(--line);background:var(--surface)}
.figure-card img{width:100%;height:420px;object-fit:cover}
.figure-cap{padding:16px 20px;font-size:13px;color:var(--muted);border-top:1px solid var(--line)}

/* ============ faq ============ */
.faq-wrap{max-width:820px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:transparent;border:0;cursor:pointer;text-align:left;
  padding:22px 4px;font-size:16px;font-weight:600;color:var(--ink);
  transition:color .18s var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-sign{
  position:relative;width:22px;height:22px;flex-shrink:0;border-radius:999px;
  border:1px solid var(--line);transition:border-color .2s var(--ease),transform .24s var(--ease),background .2s var(--ease);
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--muted);
  border-radius:2px;transform:translate(-50%,-50%);transition:background .2s var(--ease);
}
.faq-sign::before{width:10px;height:1.6px}
.faq-sign::after{width:1.6px;height:10px}
.faq-item.is-open .faq-sign{transform:rotate(45deg);border-color:rgba(184,69,47,.5);background:rgba(184,69,47,.07)}
.faq-item.is-open .faq-sign::before,.faq-item.is-open .faq-sign::after{background:var(--brand)}
.faq-a{display:none;padding:0 40px 24px 4px;font-size:15px;color:var(--muted);line-height:1.85;max-width:720px}
.faq-item.is-open .faq-a{display:block}

/* ============ cta ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:28px;
  background:var(--grad);color:#fff;padding:52px 48px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;width:420px;height:420px;border-radius:50%;
  background:rgba(255,255,255,.08);left:-140px;bottom:-220px;
}
.cta-band h2{font-size:30px;max-width:14em;position:relative}
.cta-band p{margin-top:12px;font-size:14.5px;color:rgba(255,255,255,.86);max-width:34em;position:relative}
.cta-form{position:relative;display:grid;gap:12px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);border-radius:var(--r-md);padding:22px}
.field label{display:block;font-size:12.5px;font-weight:600;color:rgba(255,255,255,.9);margin-bottom:6px}
.field input{
  width:100%;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.4);
  background:#fff;color:var(--ink);padding:13px 15px;font-size:14px;outline:none;
  transition:box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.field input::placeholder{color:var(--weak)}
.field input:focus{border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.35)}
.cta-form .btn{background:#fff;color:var(--brand-deep);box-shadow:0 10px 24px -14px rgba(0,0,0,.5)}
.cta-form .btn:hover{transform:translateY(-1px);box-shadow:0 16px 30px -16px rgba(0,0,0,.55)}
.form-note{font-size:12px;color:rgba(255,255,255,.75)}

/* ============ footer ============ */
.site-footer{
  background:var(--dark);color:#fff;border-radius:28px 28px 0 0;
  margin:24px 24px 0;padding:56px 0 0;
}
.site-footer .container{padding:0 24px}
.footer-grid{display:grid;grid-template-columns:1.6fr .8fr .8fr 1.2fr;gap:44px;padding-bottom:42px}
.footer-brand .brand-mark{width:22px;height:22px}
.footer-brand .brand-main{color:#fff}
.footer-brand .brand-sub{color:rgba(255,255,255,.6)}
.footer-about{margin-top:18px;font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.66);max-width:34em}
.footer-key{margin-top:14px;font-size:12.5px;color:var(--accent);font-weight:600;letter-spacing:.02em}
.footer-col h4,.footer-sub h4{font-size:13px;font-weight:700;letter-spacing:.08em;color:rgba(255,255,255,.55);margin-bottom:16px}
.footer-col{display:flex;flex-direction:column;gap:0}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.78);padding:6px 0;transition:color .18s var(--ease),transform .18s var(--ease)}
.footer-col a:hover{color:var(--accent);transform:translateX(2px)}
.footer-sub p{font-size:13px;color:rgba(255,255,255,.62);margin-bottom:14px}
.sub-form{display:flex;gap:8px}
.sub-form input{
  flex:1;min-width:0;border-radius:999px;border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.08);color:#fff;padding:11px 16px;font-size:13.5px;outline:none;
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.sub-form input::placeholder{color:rgba(255,255,255,.5)}
.sub-form input:focus{border-color:rgba(232,163,61,.7);background:rgba(255,255,255,.12)}
.sub-form .btn{padding:11px 18px;font-size:13.5px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;font-size:12.5px;color:rgba(255,255,255,.55);flex-wrap:wrap;
}
.footer-bottom a{color:rgba(255,255,255,.75)}
.footer-bottom a:hover{color:var(--accent)}

/* ============ responsive ============ */
@media (max-width:1024px){
  .nav-links{gap:18px}
  .header-search{width:190px}
  .header-search:focus-within{width:230px}
  .page-head-grid{grid-template-columns:1fr;gap:34px}
  .head-figure img{height:240px}
  .split{grid-template-columns:1fr;gap:36px}
  .figure-card img{height:320px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:34px}
  .footer-sub{grid-column:1/-1}
  .cta-band{grid-template-columns:1fr;gap:30px;padding:44px 34px}
  .step-list{grid-template-columns:1fr 1fr}
  .dark-band{padding:44px 32px}
}
@media (max-width:820px){
  .nav-links,.header-search,.icon-btn{display:none}
  .menu-toggle{display:flex}
  .header-inner{height:64px;gap:14px}
  .header-tools .btn-sm{display:none}
  .section{padding:60px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .section-head h2{font-size:24px}
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .dark-band h2,.cta-band h2{font-size:24px}
  .step-list{grid-template-columns:1fr}
}
@media (max-width:640px){
  .container{padding:0 18px}
  body{font-size:15px}
  .page-head{padding:22px 0 44px}
  .sec-card{flex-direction:column}
  .sec-thumb{width:100%;height:170px}
  .sec-thumb img{min-height:170px}
  .sec-body{padding:20px 20px 22px}
  .sec-body h3{padding-right:0;margin-top:6px}
  .card-flag{top:12px;right:12px}
  .dark-band{border-radius:22px;padding:34px 22px}
  .cta-band{border-radius:22px;padding:32px 20px}
  .site-footer{margin:20px 12px 0;border-radius:22px 22px 0 0;padding-top:40px}
  .site-footer .container{padding:0 18px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .sub-form{flex-direction:column}
  .sub-form .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .figure-card img{height:230px}
  .faq-q{font-size:15px;padding:18px 2px}
  .head-actions .btn{width:100%}
}

/* roulang page: category3 */
:root{
  --primary:#B8452F;
  --primary-deep:#8E3222;
  --accent:#E8A33D;
  --ink-blue:#2B3A42;
  --bg:#FAF6F0;
  --surface:#FFFFFF;
  --fill:#F2EBE1;
  --border:#E6DED2;
  --ink:#1C1917;
  --text-2:#5B534B;
  --text-3:#8A8178;
  --grad:linear-gradient(105deg,#B8452F 0%,#D9702F 50%,#E8A33D 100%);
  --radius-lg:22px;
  --radius-md:16px;
  --shadow-1:0 1px 2px rgba(28,25,23,.05);
  --shadow-2:0 14px 32px -14px rgba(28,25,23,.18);
  --shadow-3:0 24px 56px -20px rgba(28,25,23,.24);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Inter','Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:15.5px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px}
::selection{background:rgba(184,69,47,.16)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--fill)}
::-webkit-scrollbar-thumb{background:#d5c8b7;border-radius:999px;border:2px solid var(--fill)}
::-webkit-scrollbar-thumb:hover{background:#c2b19c}

.container{max-width:1200px;margin:0 auto;padding:0 28px}
.section{padding:72px 0}
.section-tight{padding:52px 0}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,246,240,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:24px;height:24px;border-radius:7px;background:var(--grad);position:relative;
  box-shadow:0 4px 10px -4px rgba(184,69,47,.7);flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;left:6px;top:7px;width:10px;height:8px;
  border-left:1.6px solid #fff;border-bottom:1.6px solid #fff;
  transform:rotate(-45deg);border-radius:1px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-main{font-size:14px;font-weight:800;letter-spacing:.01em}
.brand-sub{font-size:11px;color:var(--text-2);font-weight:500;letter-spacing:.02em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:26px;margin:0 auto}
.nav-link{position:relative;font-size:14px;font-weight:500;color:var(--text-2);padding:23px 1px;transition:color .18s;white-space:nowrap}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:15px;transform:translateX(-50%);
  width:0;height:2px;border-radius:2px;background:var(--grad);transition:width .18s;
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{width:16px}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-link.is-active::after{width:16px}
.nav-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.search-box{
  display:flex;align-items:center;gap:8px;width:236px;padding:8px 12px;
  background:var(--surface);border:1px solid var(--border);border-radius:999px;
  transition:width .22s,box-shadow .22s,border-color .22s;
}
.search-box i{font-size:12px;color:var(--text-3)}
.search-box input{border:0;outline:0;background:transparent;font-size:13px;width:100%;color:var(--ink);min-width:0}
.search-box input::placeholder{color:var(--text-3)}
.search-box:focus-within{width:300px;border-color:rgba(184,69,47,.4);box-shadow:0 0 0 3px rgba(184,69,47,.16)}
.kbd{font-size:11px;background:var(--fill);color:var(--text-2);padding:2px 6px;border-radius:6px;white-space:nowrap;font-variant-numeric:tabular-nums}
.icon-btn{
  width:34px;height:34px;border-radius:50%;border:1px solid transparent;background:transparent;
  color:var(--text-2);display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:background .18s,color .18s;
}
.icon-btn:hover{background:var(--fill);color:var(--primary)}
.menu-btn{
  display:none;width:38px;height:38px;border-radius:12px;border:1px solid var(--border);
  background:var(--surface);color:var(--ink);align-items:center;justify-content:center;cursor:pointer;
}
.mobile-drawer{display:none;border-top:1px solid var(--border);background:var(--bg);padding:18px 0 24px}
.mobile-drawer.is-open{display:block}
.mobile-drawer .drawer-search{display:flex;align-items:center;gap:8px;width:100%;background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:10px 14px;margin-bottom:14px}
.mobile-drawer .drawer-search i{color:var(--text-3);font-size:12px}
.mobile-drawer .drawer-search input{border:0;outline:0;background:transparent;width:100%;font-size:14px}
.mobile-drawer a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:44px;padding:0 4px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--border);
}
.mobile-drawer a.drawer-link.is-active{color:var(--primary);font-weight:600}
.mobile-drawer .btn{width:100%;margin-top:16px}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:14px;font-weight:600;border-radius:999px;padding:11px 20px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .16s,box-shadow .2s,background .2s,color .2s,border-color .2s;
}
.btn-sm{padding:9px 18px;font-size:13.5px}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 20px -10px rgba(184,69,47,.7)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 14px 26px -12px rgba(184,69,47,.78)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 5px 12px -8px rgba(184,69,47,.7)}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--border);box-shadow:var(--shadow-1)}
.btn-ghost:hover{border-color:rgba(184,69,47,.45);color:var(--primary)}
.btn-ghost:active{transform:translateY(1px)}
.btn-white{background:#fff;color:var(--primary-deep)}
.btn-white:hover{transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(28,25,23,.35)}
.text-link{
  display:inline-flex;align-items:center;gap:7px;
  color:var(--primary);font-size:14px;font-weight:600;
}
.text-link i{font-size:12px;transition:transform .18s}
.text-link:hover i{transform:translateX(3px)}

/* ============ Badges ============ */
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.badge{
  display:inline-flex;align-items:center;gap:7px;font-size:12px;color:var(--text-2);
  background:var(--surface);border:1px solid var(--border);border-radius:999px;
  padding:6px 13px;box-shadow:var(--shadow-1);white-space:nowrap;
}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:0 0 auto}
.badge strong{font-variant-numeric:tabular-nums;font-weight:700;color:var(--ink)}
.chip{
  display:inline-flex;align-items:center;font-size:13px;color:var(--text-2);
  background:var(--fill);border-radius:999px;padding:5px 12px;
}
.chip:hover{background:rgba(184,69,47,.1);color:var(--primary)}

/* ============ Page hero ============ */
.page-hero{padding:34px 0 62px;position:relative}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.crumbs a{transition:color .18s}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{color:#c9bda e}
.crumbs .sep{color:#c9bdae}
.crumbs .current{color:var(--primary);font-weight:600}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center}
.eyebrow{font-size:12px;letter-spacing:.14em;font-weight:700;color:var(--primary);margin-bottom:16px}
h1{
  font-size:clamp(30px,4.2vw,44px);
  line-height:1.2;letter-spacing:-.02em;font-weight:800;
}
h1 .hl{color:var(--primary)}
.hero-desc{font-size:16px;color:var(--text-2);max-width:560px;margin-top:18px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-lg);box-shadow:var(--shadow-3);
  border:4px solid #fff;
}
.hero-visual .float-card{
  position:absolute;left:-18px;bottom:-22px;
  background:var(--surface);border:1px solid var(--border);border-radius:14px;
  padding:12px 16px;box-shadow:var(--shadow-2);font-size:12px;color:var(--text-2);
  display:flex;align-items:center;gap:10px;max-width:250px;
}
.hero-visual .float-card i{color:var(--accent);font-size:14px}

/* ============ Section heading ============ */
.section-head{max-width:720px}
.section-head h2{font-size:30px;font-weight:800;letter-spacing:-.01em;line-height:1.3}
.section-head p{color:var(--text-2);margin-top:12px;font-size:15.5px}
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--primary);margin-bottom:12px}
.kicker::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad)}

/* ============ Zigzag rows ============ */
.zigzag{display:flex;flex-direction:column;gap:64px;margin-top:48px}
.zrow{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.zrow.flip .zmedia{order:2}
.zmedia{overflow:hidden;border-radius:18px;box-shadow:var(--shadow-2);background:var(--fill)}
.zmedia img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease}
.zrow:hover .zmedia img{transform:scale(1.03)}
.zbody h3{font-size:23px;font-weight:800;line-height:1.35;margin-bottom:14px;letter-spacing:-.01em}
.zbody p{color:var(--text-2);font-size:15.5px}
.zbody .text-link{margin-top:18px}
.zmeta{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--text-3);margin-bottom:12px;letter-spacing:.04em}
.zmeta .bar{width:16px;height:2px;background:var(--accent);border-radius:2px}

/* ============ Matrix / table band ============ */
.matrix-band{
  background:var(--ink-blue);border-radius:28px;padding:52px 48px;color:#fff;
  margin-top:8px;position:relative;overflow:hidden;
}
.matrix-band::after{
  content:"";position:absolute;right:-120px;top:-140px;width:360px;height:360px;
  border-radius:50%;background:radial-gradient(circle,rgba(232,163,61,.22),rgba(232,163,61,0) 70%);
}
.matrix-band h2{font-size:28px;font-weight:800;line-height:1.32;color:#fff;position:relative;z-index:1}
.matrix-band .band-sub{color:rgba(255,255,255,.7);margin-top:12px;max-width:640px;font-size:15px;position:relative;z-index:1}
.tbl-wrap{position:relative;z-index:1;margin-top:30px;border-radius:16px;overflow:hidden;border:1px solid rgba(255,255,255,.12)}
.tbl{width:100%;border-collapse:collapse;font-size:14.5px}
.tbl th{background:rgba(255,255,255,.08);text-align:left;padding:15px 18px;font-size:13px;font-weight:700;color:rgba(255,255,255,.85);white-space:nowrap}
.tbl td{padding:15px 18px;border-top:1px solid rgba(255,255,255,.1);color:rgba(255,255,255,.76);vertical-align:top}
.tbl td:first-child{color:#fff;font-weight:600}
.tbl tbody tr:hover td{background:rgba(255,255,255,.04)}

/* ============ Steps ============ */
.steps{list-style:none;margin:38px 0 0;max-width:820px}
.steps li{position:relative;padding:0 0 32px 52px}
.steps li::before{content:"";position:absolute;left:17px;top:36px;bottom:0;width:1px;background:var(--border)}
.steps li:last-child{padding-bottom:0}
.steps li:last-child::before{display:none}
.step-num{
  position:absolute;left:0;top:0;width:35px;height:35px;border-radius:50%;
  background:var(--surface);border:1px solid var(--border);color:var(--primary);
  font-weight:700;font-size:14px;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-1);font-variant-numeric:tabular-nums;
}
.steps h3{font-size:17px;font-weight:700;margin-bottom:6px}
.steps p{color:var(--text-2);font-size:15px}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:52px;align-items:start}
.faq-side{position:sticky;top:96px}
.faq-side .btn{margin-top:22px}
.faq{border-top:1px solid var(--border)}
.faq details{border-bottom:1px solid var(--border)}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 4px;font-size:16px;font-weight:600;cursor:pointer;list-style:none;
  transition:color .18s;
}
.faq summary:hover{color:var(--primary)}
.faq summary::-webkit-details-marker{display:none}
.plus{width:22px;height:22px;position:relative;flex:0 0 auto;transition:transform .2s}
.plus::before,.plus::after{content:"";position:absolute;background:var(--primary);border-radius:2px}
.plus::before{left:0;top:10px;width:22px;height:2px}
.plus::after{left:10px;top:0;width:2px;height:22px}
details[open] .plus{transform:rotate(45deg)}
.faq .answer{margin:0 0 22px;color:var(--text-2);max-width:720px;font-size:15px}

/* ============ CTA band ============ */
.cta-band{
  margin:80px auto 0;background:var(--grad);border-radius:28px;
  padding:54px;color:#fff;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-100px;width:340px;height:340px;
  border-radius:50%;background:rgba(255,255,255,.09);
}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;position:relative;z-index:1}
.cta-band h2{font-size:28px;font-weight:800;line-height:1.3;color:#fff}
.cta-band .cta-sub{color:rgba(255,255,255,.86);margin-top:12px;font-size:15px;max-width:460px}
.cta-form{display:grid;gap:14px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:rgba(255,255,255,.9)}
.field input{
  width:100%;padding:13px 16px;border-radius:12px;border:1px solid rgba(255,255,255,.55);
  background:#fff;color:var(--ink);font-size:14.5px;outline:0;transition:box-shadow .2s,border-color .2s;
}
.field input::placeholder{color:#a89e93}
.field input:focus{border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.35)}
.cta-form .btn{justify-self:start;padding:12px 26px}

/* ============ Footer ============ */
.site-footer{
  background:var(--ink-blue);color:#fff;border-radius:28px 28px 0 0;
  margin-top:88px;padding-top:8px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding:56px 0 40px}
.footer-brand .brand{margin-bottom:18px}
.site-footer .brand-main{color:#fff}
.site-footer .brand-sub{color:rgba(255,255,255,.65)}
.footer-about{font-size:14px;color:rgba(255,255,255,.66);line-height:1.8;max-width:330px}
.footer-key{font-size:12.5px;color:rgba(255,255,255,.45);margin-top:14px;letter-spacing:.02em}
.footer-col h4,.footer-sub h4{font-size:13px;font-weight:700;letter-spacing:.08em;color:rgba(255,255,255,.55);margin-bottom:16px}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.72);padding:6px 0;transition:color .18s}
.footer-col a:hover{color:var(--accent)}
.footer-sub p{font-size:13.5px;color:rgba(255,255,255,.62);margin-bottom:14px;line-height:1.7}
.sub-form{display:flex;gap:8px;flex-wrap:wrap}
.sub-form input{
  flex:1 1 150px;min-width:0;padding:11px 14px;border-radius:999px;border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.08);color:#fff;font-size:13.5px;outline:0;transition:border-color .2s,background .2s;
}
.sub-form input::placeholder{color:rgba(255,255,255,.45)}
.sub-form input:focus{border-color:var(--accent);background:rgba(255,255,255,.14)}
.sub-form .btn{padding:11px 18px;font-size:13.5px}
.footer-bottom{
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.72);transition:color .18s}
.footer-bottom a:hover{color:var(--accent)}

/* ============ Responsive ============ */
@media (max-width:1180px){
  .search-box{width:190px}
  .search-box:focus-within{width:220px}
  .nav-links{gap:18px}
}
@media (max-width:1080px){
  .nav-links{display:none}
  .menu-btn{display:inline-flex}
  .header-inner{gap:14px}
  .nav-tools{margin-left:auto}
}
@media (max-width:900px){
  .search-box,.icon-btn{display:none}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-visual{max-width:560px}
  .hero-visual .float-card{left:auto;right:-8px;bottom:-20px}
  .faq-layout{grid-template-columns:1fr;gap:30px}
  .faq-side{position:static}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .cta-band{padding:36px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .matrix-band{padding:36px 26px}
}
@media (max-width:820px){
  .zrow{grid-template-columns:1fr;gap:24px}
  .zrow.flip .zmedia{order:0}
  .zbody h3{font-size:20px}
  .section{padding:56px 0}
  .page-hero{padding:26px 0 40px}
  .zigzag{gap:52px;margin-top:34px}
}
@media (max-width:720px){
  .tbl thead{display:none}
  .tbl tbody tr{display:grid;grid-template-columns:1fr;border-top:1px solid rgba(255,255,255,.1)}
  .tbl tbody tr:first-child{border-top:0}
  .tbl td{display:flex;justify-content:space-between;gap:16px;border-top:0;padding:10px 16px}
  .tbl td:first-child{padding-top:16px}
  .tbl td:last-child{padding-bottom:16px}
  .tbl td::before{content:attr(data-label);font-size:12px;color:rgba(255,255,255,.5);flex:0 0 auto}
}
@media (max-width:640px){
  .container{padding:0 18px}
  .header-inner{height:62px}
  .brand-main{font-size:13px}
  .brand-sub{font-size:10.5px}
  .nav-tools .btn-primary{padding:8px 14px;font-size:13px}
  .section-head h2,.matrix-band h2,.cta-band h2{font-size:22px}
  h1{font-size:clamp(26px,7vw,32px)}
  .hero-desc{font-size:15px}
  .badge{font-size:11.5px;padding:5px 11px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:40px 0 30px}
  .site-footer{border-radius:22px 22px 0 0;margin-top:64px}
  .cta-band{margin-top:56px;padding:30px 22px;border-radius:22px}
  .matrix-band{border-radius:22px;padding:30px 20px}
  .steps li{padding-left:46px}
  .hero-visual .float-card{position:static;margin-top:14px;max-width:none}
}
@media (max-width:400px){
  .crumbs{font-size:12px}
  .zbody h3{font-size:18.5px}
}

/* roulang page: category4 */
:root{
    --primary:#B8452F;
    --primary-dark:#8E3222;
    --accent:#E8A33D;
    --deep:#2B3A42;
    --bg:#FAF6F0;
    --surface:#FFFFFF;
    --fill:#F2EBE1;
    --line:#E6DED2;
    --ink:#1C1917;
    --ink-2:#5B534B;
    --ink-3:#8A8178;
    --grad:linear-gradient(105deg,#B8452F 0%,#D9702F 50%,#E8A33D 100%);
    --r-lg:22px;
    --r-md:16px;
    --r-sm:12px;
    --r-pill:999px;
    --sh-1:0 1px 2px rgba(28,25,23,.05);
    --sh-2:0 14px 32px -14px rgba(28,25,23,.18);
    --sh-3:0 24px 56px -20px rgba(28,25,23,.24);
  }
  *,*::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:'Inter','Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
    font-size:15.5px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  ul,ol{padding-left:0;list-style:none;}
  ::selection{background:rgba(184,69,47,.18);}
  :focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 28px;}
  .section{padding:88px 0;}
  .section-tight{padding:64px 0;}

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(250,246,240,.88);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line);
  }
  .header-inner{
    height:68px;display:flex;align-items:center;gap:22px;
  }
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand-mark{
    position:relative;width:22px;height:22px;border-radius:7px;
    background:var(--grad);flex-shrink:0;
    box-shadow:0 4px 12px -4px rgba(184,69,47,.6);
  }
  .brand-mark::after{
    content:"";position:absolute;left:5px;right:5px;top:50%;height:1.5px;
    background:rgba(255,255,255,.92);border-radius:2px;
    transform:translateY(-50%) rotate(-28deg);
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.2;}
  .brand-main{font-size:15px;font-weight:800;letter-spacing:-.01em;color:var(--ink);}
  .brand-sub{font-size:11px;font-weight:500;letter-spacing:.06em;color:var(--ink-2);}

  .nav-links{display:flex;align-items:center;gap:26px;margin-left:6px;}
  .nav-link{
    position:relative;font-size:14px;font-weight:500;color:var(--ink-2);
    padding:6px 0;transition:color .18s ease;white-space:nowrap;
  }
  .nav-link::after{
    content:"";position:absolute;left:50%;bottom:-1px;width:0;height:2px;
    background:var(--grad);border-radius:2px;transform:translateX(-50%);
    transition:width .18s ease;
  }
  .nav-link:hover{color:var(--primary);}
  .nav-link:hover::after{width:16px;}
  .nav-link.is-active{color:var(--primary);font-weight:600;}
  .nav-link.is-active::after{width:16px;}

  .header-right{margin-left:auto;display:flex;align-items:center;gap:10px;}
  .search-box{
    position:relative;display:flex;align-items:center;
    width:230px;height:38px;padding:0 10px 0 34px;
    background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-pill);
    transition:width .22s ease,box-shadow .22s ease,border-color .22s ease;
  }
  .search-box:focus-within{
    width:310px;border-color:rgba(184,69,47,.4);
    box-shadow:0 0 0 3px rgba(184,69,47,.18);
  }
  .search-box .fa-magnifying-glass{
    position:absolute;left:13px;top:50%;transform:translateY(-50%);
    font-size:12px;color:var(--ink-3);
  }
  .search-box input{
    border:0;background:transparent;outline:none;width:100%;
    font-size:13px;color:var(--ink);
  }
  .search-box input::placeholder{color:var(--ink-3);}
  .kbd{
    flex-shrink:0;font-size:11px;font-weight:600;color:var(--ink-2);
    background:var(--fill);border-radius:6px;padding:1px 6px;line-height:1.6;
  }
  .icon-btn{
    width:34px;height:34px;border-radius:50%;border:0;
    display:grid;place-items:center;background:transparent;
    color:var(--ink-2);font-size:14px;cursor:pointer;
    transition:background .18s ease,color .18s ease;
  }
  .icon-btn:hover{background:var(--fill);color:var(--primary);}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:var(--r-pill);border:1px solid transparent;
    font-size:14px;font-weight:600;line-height:1;cursor:pointer;
    padding:12px 20px;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
    white-space:nowrap;
  }
  .btn-primary{
    background:var(--grad);color:#fff;
    box-shadow:0 8px 20px -10px rgba(184,69,47,.8);
  }
  .btn-primary:hover{transform:translateY(-1px);box-shadow:0 14px 28px -12px rgba(184,69,47,.85);}
  .btn-primary:active{transform:translateY(1px);box-shadow:0 6px 14px -10px rgba(184,69,47,.8);}
  .btn-ghost{
    background:var(--surface);border-color:var(--line);color:var(--ink);
  }
  .btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px);}
  .btn-ghost:active{transform:translateY(0);}
  .btn-text{
    display:inline-flex;align-items:center;gap:6px;
    color:var(--primary);font-size:14px;font-weight:600;
    transition:gap .18s ease,color .18s ease;
  }
  .btn-text i{font-size:12px;transition:transform .18s ease;}
  .btn-text:hover{gap:10px;color:var(--primary-dark);}
  .btn-text:hover i{transform:translateX(3px);}

  .mobile-toggle{display:none;}
  .mobile-drawer{
    display:none;position:fixed;inset:0;z-index:80;
    background:rgba(28,25,23,.4);backdrop-filter:blur(2px);
  }
  .mobile-drawer.is-open{display:block;}
  .drawer-panel{
    background:var(--bg);border-bottom-left-radius:24px;border-bottom-right-radius:24px;
    padding:18px 18px 26px;box-shadow:var(--sh-3);
    animation:slideDown .22s ease;
  }
  @keyframes slideDown{from{transform:translateY(-16px);opacity:.6}to{transform:translateY(0);opacity:1}}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
  .drawer-nav{display:flex;flex-direction:column;margin:8px 0 16px;}
  .drawer-nav a{
    display:flex;align-items:center;height:44px;font-size:15px;font-weight:500;
    color:var(--ink-2);border-bottom:1px solid var(--line);
  }
  .drawer-nav a.is-active{color:var(--primary);font-weight:600;}
  .drawer-search{
    display:flex;align-items:center;gap:8px;height:42px;padding:0 14px;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-pill);
  }
  .drawer-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;}

  /* ---------- Breadcrumb ---------- */
  .crumb-bar{padding:20px 0 0;}
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);flex-wrap:wrap;}
  .breadcrumb a:hover{color:var(--primary);}
  .breadcrumb .sep{color:var(--line);}
  .breadcrumb .current{color:var(--primary);font-weight:600;}

  /* ---------- Hero ---------- */
  .page-hero{
    position:relative;overflow:hidden;
    background-image:url('/assets/images/backpic/back-1.webp');
    background-size:cover;background-position:center;
    padding:64px 0 96px;color:#fff;
  }
  .page-hero::before{
    content:"";position:absolute;inset:0;
    background:linear-gradient(120deg,rgba(28,25,23,.88) 0%,rgba(28,25,23,.72) 45%,rgba(142,50,34,.66) 100%);
  }
  .page-hero .container{position:relative;z-index:2;}
  .hero-eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;letter-spacing:.14em;color:var(--accent);
    font-weight:600;text-transform:uppercase;margin-bottom:16px;
  }
  .hero-eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px;}
  .page-hero h1{
    font-size:clamp(30px,4.4vw,46px);line-height:1.16;font-weight:800;
    letter-spacing:-.02em;max-width:820px;
  }
  .page-hero h1 .hl{
    background:linear-gradient(180deg,transparent 62%,rgba(232,163,61,.42) 62%);
    padding:0 4px;border-radius:2px;
  }
  .hero-lead{
    margin-top:16px;max-width:680px;font-size:15.5px;line-height:1.85;
    color:rgba(255,255,255,.82);
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
  .hero-actions .btn-ghost{
    background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.28);color:#fff;
  }
  .hero-actions .btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff;border-color:rgba(255,255,255,.5);}

  /* ---------- Stat bar ---------- */
  .stat-bar{
    position:relative;z-index:3;margin-top:-52px;
    background:var(--fill);border-radius:var(--r-md);
    padding:16px;display:grid;grid-template-columns:repeat(4,1fr);gap:12px;
    box-shadow:var(--sh-2);
  }
  .stat{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-pill);
    padding:10px 16px;display:flex;align-items:center;gap:10px;
    font-size:12.5px;color:var(--ink-2);line-height:1.4;
  }
  .stat .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex-shrink:0;}
  .stat .dot.alt{background:var(--primary);}
  .stat b{
    font-family:'Inter',sans-serif;font-variant-numeric:tabular-nums;
    font-weight:700;font-size:15px;color:var(--ink);
  }

  /* ---------- Section head ---------- */
  .section-head{max-width:720px;margin-bottom:40px;}
  .section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
  .section-kicker{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--primary);
    margin-bottom:12px;
  }
  .section-kicker::before{content:"";width:18px;height:2px;background:var(--primary);border-radius:2px;}
  .section-head h2{
    font-size:30px;line-height:1.3;font-weight:800;letter-spacing:-.02em;color:var(--ink);
  }
  .section-head p{margin-top:12px;color:var(--ink-2);font-size:15px;line-height:1.85;}

  /* ---------- Mini card matrix ---------- */
  .matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
  .mini-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
    padding:24px 22px;box-shadow:var(--sh-1);
    transition:background .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  }
  .mini-card:hover{
    background:rgba(184,69,47,.04);
    border-color:rgba(184,69,47,.35);
    transform:translateY(-4px);
    box-shadow:var(--sh-2);
  }
  .icon-block{
    width:40px;height:40px;border-radius:12px;background:var(--fill);
    display:grid;place-items:center;color:var(--primary);font-size:16px;
    margin-bottom:16px;transition:background .2s ease,color .2s ease;
  }
  .mini-card:hover .icon-block{background:var(--grad);color:#fff;}
  .mini-card h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:8px;letter-spacing:-.01em;}
  .mini-card p{font-size:13.5px;line-height:1.8;color:var(--ink-2);}

  /* ---------- Detail split ---------- */
  .split{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
  .split-figure{
    border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
    box-shadow:var(--sh-2);background:var(--surface);
  }
  .split-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s ease;}
  .split-figure:hover img{transform:scale(1.03);}
  .state-list{display:flex;flex-direction:column;gap:0;}
  .state-item{
    display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line);
  }
  .state-item:first-child{padding-top:0;}
  .state-item:last-child{border-bottom:0;padding-bottom:0;}
  .state-tag{
    flex-shrink:0;width:74px;height:26px;border-radius:var(--r-pill);
    display:grid;place-items:center;font-size:12px;font-weight:700;
    border:1px solid var(--line);background:var(--surface);color:var(--ink-2);
  }
  .state-tag.ok{color:#3F7A50;border-color:rgba(63,122,80,.35);background:rgba(63,122,80,.07);}
  .state-tag.wait{color:#A8761F;border-color:rgba(232,163,61,.45);background:rgba(232,163,61,.12);}
  .state-tag.fail{color:var(--primary);border-color:rgba(184,69,47,.35);background:rgba(184,69,47,.07);}
  .state-body h3{font-size:16px;font-weight:700;margin-bottom:4px;}
  .state-body p{font-size:13.5px;color:var(--ink-2);line-height:1.8;}

  /* ---------- Steps ---------- */
  .steps{
    display:grid;grid-template-columns:repeat(4,1fr);gap:0;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
    padding:32px;box-shadow:var(--sh-1);
  }
  .step{position:relative;padding:0 26px;}
  .step:first-child{padding-left:0;}
  .step:last-child{padding-right:0;}
  .step + .step::before{
    content:"";position:absolute;left:0;top:6px;bottom:6px;width:1px;background:var(--line);
  }
  .step-no{
    font-family:'Inter',sans-serif;font-variant-numeric:tabular-nums;
    font-size:12px;font-weight:700;color:var(--primary);letter-spacing:.08em;
    display:flex;align-items:center;gap:8px;margin-bottom:12px;
  }
  .step-no::after{content:"";flex:1;height:1px;background:var(--line);}
  .step h3{font-size:16px;font-weight:700;margin-bottom:8px;}
  .step p{font-size:13.5px;color:var(--ink-2);line-height:1.8;}

  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:860px;margin:0 auto;}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item:first-child{border-top:1px solid var(--line);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
    padding:22px 4px;background:transparent;border:0;cursor:pointer;text-align:left;
    font-size:16px;font-weight:600;color:var(--ink);transition:color .18s ease;
  }
  .faq-q:hover{color:var(--primary);}
  .faq-q .sign{
    flex-shrink:0;width:26px;height:26px;border-radius:50%;
    display:grid;place-items:center;background:var(--fill);color:var(--ink-2);
    font-size:13px;transition:transform .2s ease,background .2s ease,color .2s ease;
  }
  .faq-item.is-open .faq-q{color:var(--primary);}
  .faq-item.is-open .faq-q .sign{transform:rotate(45deg);background:var(--primary);color:#fff;}
  .faq-a{
    max-height:0;overflow:hidden;transition:max-height .25s ease;
  }
  .faq-a p{
    max-width:720px;padding:0 4px 24px;font-size:15px;line-height:1.85;color:var(--ink-2);
  }

  /* ---------- CTA ---------- */
  .cta-band{
    position:relative;overflow:hidden;border-radius:28px;
    background:var(--grad);padding:52px 48px;color:#fff;
    display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;
    box-shadow:var(--sh-3);
  }
  .cta-band::after{
    content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;
    border-radius:50%;background:rgba(255,255,255,.08);
  }
  .cta-band h2{font-size:28px;line-height:1.3;font-weight:800;letter-spacing:-.02em;}
  .cta-band p{margin-top:12px;font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.88);max-width:440px;}
  .cta-form{display:grid;gap:12px;position:relative;z-index:2;}
  .cta-form .row{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
  .cta-form input{
    width:100%;height:46px;padding:0 16px;border-radius:var(--r-sm);
    border:1px solid rgba(255,255,255,.5);background:#fff;color:var(--ink);
    font-size:14px;outline:none;transition:box-shadow .18s ease,border-color .18s ease;
  }
  .cta-form input::placeholder{color:var(--ink-3);}
  .cta-form input:focus{border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.32);}
  .cta-form .btn{
    background:#fff;color:var(--primary-dark);width:100%;height:46px;
    box-shadow:0 10px 24px -14px rgba(0,0,0,.5);
  }
  .cta-form .btn:hover{background:#FFF6EC;transform:translateY(-1px);}

  /* ---------- Footer ---------- */
  .site-footer{
    background:var(--deep);color:#fff;border-radius:28px 28px 0 0;
    margin-top:96px;padding:64px 0 0;
  }
  .footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:48px;}
  .footer-brand .brand-main{color:#fff;}
  .footer-brand .brand-sub{color:rgba(255,255,255,.6);}
  .footer-about{
    margin-top:16px;font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px;
  }
  .footer-key{
    margin-top:14px;font-size:12px;letter-spacing:.04em;color:rgba(255,255,255,.42);
  }
  .footer-col h4, .footer-sub h4{
    font-size:13px;font-weight:700;letter-spacing:.08em;color:rgba(255,255,255,.55);
    margin-bottom:16px;
  }
  .footer-col a{
    display:block;font-size:14px;color:rgba(255,255,255,.78);
    padding:6px 0;transition:color .18s ease,transform .18s ease;
  }
  .footer-col a:hover{color:var(--accent);transform:translateX(2px);}
  .footer-sub p{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.62);margin-bottom:14px;}
  .sub-form{display:flex;gap:8px;flex-wrap:wrap;}
  .sub-form input{
    flex:1 1 150px;height:42px;padding:0 14px;border-radius:var(--r-sm);
    border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);
    color:#fff;font-size:13.5px;outline:none;transition:border-color .18s ease,background .18s ease;
  }
  .sub-form input::placeholder{color:rgba(255,255,255,.45);}
  .sub-form input:focus{border-color:var(--accent);background:rgba(255,255,255,.12);}
  .sub-form .btn{padding:0 18px;height:42px;font-size:13.5px;}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:rgba(255,255,255,.5);
  }
  .footer-bottom a{color:rgba(255,255,255,.72);}
  .footer-bottom a:hover{color:var(--accent);}

  /* ---------- Responsive ---------- */
  @media (max-width:1080px){
    .nav-links{gap:18px;}
    .search-box{width:180px;}
    .search-box:focus-within{width:220px;}
    .matrix{grid-template-columns:repeat(2,1fr);}
    .steps{grid-template-columns:repeat(2,1fr);gap:28px 0;}
    .step:nth-child(3)::before{display:none;}
    .split{grid-template-columns:1fr;gap:32px;}
    .cta-band{grid-template-columns:1fr;padding:40px 32px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  }
  @media (max-width:900px){
    .nav-links{display:none;}
    .search-box{display:none;}
    .icon-btn{display:none;}
    .header-right .btn-primary{display:none;}
    .mobile-toggle{display:grid;}
    .header-right{margin-left:auto;gap:8px;}
    .section{padding:60px 0;}
  }
  @media (max-width:760px){
    .container{padding:0 18px;}
    .stat-bar{grid-template-columns:repeat(2,1fr);margin-top:-40px;padding:12px;}
    .matrix{grid-template-columns:1fr;}
    .steps{grid-template-columns:1fr;padding:24px;gap:0;}
    .step{padding:20px 0;border-bottom:1px solid var(--line);}
    .step:first-child{padding-top:0;}
    .step:last-child{border-bottom:0;padding-bottom:0;}
    .step + .step::before{display:none;}
    .section-head h2{font-size:23px;}
    .page-hero{padding:44px 0 84px;}
    .cta-band{padding:32px 22px;border-radius:22px;}
    .cta-band h2{font-size:22px;}
    .cta-form .row{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;gap:32px;}
    .site-footer{margin-top:64px;padding-top:48px;}
    .footer-bottom{justify-content:flex-start;}
    .faq-q{font-size:15px;padding:18px 0;}
  }
  @media (max-width:420px){
    .stat-bar{grid-template-columns:1fr;}
    .brand-main{font-size:13.5px;}
    .brand-sub{font-size:10px;}
  }

/* roulang page: category5 */
:root{
  --brand:#B8452F;
  --brand-deep:#8E3222;
  --accent:#E8A33D;
  --slate:#2B3A42;
  --bg:#FAF6F0;
  --surface:#FFFFFF;
  --fill:#F2EBE1;
  --line:#E6DED2;
  --ink:#1C1917;
  --muted:#5B534B;
  --weak:#8A8178;
  --grad:linear-gradient(105deg,#B8452F 0%,#D9702F 50%,#E8A33D 100%);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:14px;
  --sh-1:0 1px 2px rgba(28,25,23,.05);
  --sh-2:0 14px 32px -14px rgba(28,25,23,.18);
  --sh-3:0 24px 56px -20px rgba(28,25,23,.24);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'Inter','Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:15.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
button,input,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:-.01em}
p{margin:0}
:where(a,button,input,textarea,summary,[tabindex]):focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:8px;
}
::selection{background:rgba(184,69,47,.16)}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 28px;
}
@media (max-width:640px){
  .container{padding:0 18px}
}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(250,246,240,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:22px;
  height:68px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
  color:var(--ink);
  flex:none;
}
.brand-mark{
  width:22px;
  height:22px;
  border-radius:7px;
  background:var(--grad);
  position:relative;
  flex:none;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:0;
  margin:auto;
  width:9px;
  height:5px;
  border-left:1.5px solid #fff;
  border-bottom:1.5px solid #fff;
  transform:rotate(-45deg) translate(1px,-1px);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-main{font-size:14px;font-weight:800;letter-spacing:-.01em}
.brand-sub{font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.02em;white-space:nowrap}

.nav-links{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:6px;
  flex:1 1 auto;
  min-width:0;
}
.nav-link{
  position:relative;
  font-size:14px;
  font-weight:500;
  color:var(--muted);
  text-decoration:none;
  padding:6px 0;
  white-space:nowrap;
  transition:color .18s;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:-2px;
  width:0;
  height:2px;
  border-radius:2px;
  background:var(--grad);
  transform:translateX(-50%);
  transition:width .18s;
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{width:16px}
.nav-link.is-active{color:var(--brand)}
.nav-link.is-active::after{width:16px}

.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:none}
.cmd-search{
  display:flex;
  align-items:center;
  gap:8px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:999px;
  padding:7px 10px 7px 12px;
  width:240px;
  transition:width .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.cmd-search:focus-within{
  width:320px;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(184,69,47,.18);
}
.cmd-search svg{flex:none;color:var(--weak)}
.cmd-search input{
  border:0;
  outline:0;
  background:transparent;
  font-size:13px;
  width:100%;
  min-width:0;
}
.cmd-search input::placeholder{color:var(--weak)}
.kbd{
  font-size:11px;
  background:var(--fill);
  color:var(--muted);
  border-radius:6px;
  padding:2px 6px;
  white-space:nowrap;
  font-variant-numeric:tabular-nums;
}
.icon-btn{
  width:32px;
  height:32px;
  border-radius:50%;
  border:1px solid var(--line);
  background:var(--surface);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--muted);
  cursor:pointer;
  transition:background .18s,color .18s,border-color .18s;
}
.icon-btn:hover{background:var(--fill);color:var(--brand);border-color:rgba(184,69,47,.3)}
.hamburger{
  display:none;
  width:36px;
  height:36px;
  border-radius:10px;
  border:1px solid var(--line);
  background:var(--surface);
  align-items:center;
  justify-content:center;
  cursor:pointer;
  color:var(--ink);
}
.nav-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:var(--surface);
  padding:16px 0 22px;
}
.nav-drawer.open{display:block}
.nav-drawer .drawer-inner{display:flex;flex-direction:column;gap:2px}
.nav-drawer a.drawer-link{
  padding:12px 0;
  font-size:15px;
  font-weight:500;
  color:var(--ink);
  text-decoration:none;
  border-bottom:1px solid var(--line);
}
.nav-drawer a.drawer-link.is-active{color:var(--brand)}
.nav-drawer .btn{margin-top:16px;width:100%}
.drawer-search{
  display:flex;
  align-items:center;
  gap:8px;
  border:1px solid var(--line);
  border-radius:12px;
  padding:10px 12px;
  margin-bottom:14px;
  background:var(--fill);
}
.drawer-search input{border:0;background:transparent;outline:0;width:100%;font-size:14px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  padding:10px 20px;
  border:1px solid transparent;
  cursor:pointer;
  text-decoration:none;
  white-space:nowrap;
  transition:transform .16s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease,opacity .2s;
}
.btn-primary{
  background:var(--grad);
  color:#fff;
  box-shadow:0 8px 20px -10px rgba(184,69,47,.65);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 14px 26px -12px rgba(184,69,47,.75)}
.btn-primary:active{transform:translateY(.5px);box-shadow:0 6px 14px -8px rgba(184,69,47,.6)}
.btn-ghost{
  background:var(--surface);
  border-color:var(--line);
  color:var(--ink);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(.5px)}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:none;
  border:0;
  padding:0;
  color:var(--brand);
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  text-decoration:none;
}
.btn-text .arrow{transition:transform .18s ease}
.btn-text:hover .arrow{transform:translateX(3px)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- badge / tag ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:999px;
  padding:5px 12px;
  font-size:12px;
  color:var(--muted);
  white-space:nowrap;
}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:none}
.badge .dot.brand{background:var(--brand)}
.badge b{font-variant-numeric:tabular-nums;color:var(--ink);font-weight:700}
.tag{
  display:inline-flex;
  align-items:center;
  background:var(--fill);
  color:var(--muted);
  border-radius:999px;
  padding:4px 12px;
  font-size:13px;
  transition:background .18s,color .18s;
}
.tag:hover{background:rgba(184,69,47,.1);color:var(--brand)}

/* ---------- page head ---------- */
.page-head{padding:44px 0 8px}
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--weak);
  margin-bottom:22px;
}
.crumbs a{color:var(--weak);text-decoration:none;transition:color .18s}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:var(--line)}
.crumbs .current{color:var(--brand);font-weight:600}
.head-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:32px;
  align-items:end;
}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.14em;
  color:var(--brand);
  font-weight:700;
  margin-bottom:14px;
}
.page-head h1{
  font-size:clamp(30px,4vw,40px);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.2;
  max-width:20em;
}
.page-head .lede{
  margin-top:16px;
  font-size:16px;
  color:var(--muted);
  max-width:42em;
}
.head-badges{
  display:flex;
  flex-direction:column;
  gap:10px;
  align-items:flex-start;
}
@media (max-width:900px){
  .head-grid{grid-template-columns:1fr;align-items:start}
  .head-badges{flex-direction:row;flex-wrap:wrap}
}

/* ---------- section ---------- */
.section{padding:72px 0}
.section.tight{padding:48px 0}
.section-head{max-width:44em;margin-bottom:34px}
.section-head h2{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:800;
  letter-spacing:-.02em;
  position:relative;
  padding-left:16px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;
  top:6px;
  bottom:6px;
  width:4px;
  border-radius:2px;
  background:var(--grad);
}
.section-head p{margin-top:12px;color:var(--muted);font-size:15.5px}

/* ---------- split layout ---------- */
.split{
  display:grid;
  grid-template-columns:minmax(0,2fr) minmax(0,1fr);
  gap:36px;
  align-items:start;
}
@media (max-width:1024px){
  .split{grid-template-columns:1fr;gap:32px}
}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:34px}
.timeline::before{
  content:"";
  position:absolute;
  left:5px;
  top:10px;
  bottom:10px;
  width:1px;
  background:linear-gradient(180deg,var(--brand) 0%,rgba(184,69,47,.35) 55%,var(--line) 100%);
}
.tl-item{position:relative;padding-bottom:28px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";
  position:absolute;
  left:-34px;
  top:8px;
  width:11px;
  height:11px;
  border-radius:50%;
  background:var(--surface);
  border:2px solid var(--brand);
  box-shadow:0 0 0 4px rgba(184,69,47,.08);
}
.tl-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px 24px;
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tl-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-2);
  border-color:rgba(184,69,47,.35);
}
.tl-card h3{
  font-size:19px;
  font-weight:700;
  display:flex;
  align-items:baseline;
  gap:10px;
  flex-wrap:wrap;
}
.tl-index{
  font-variant-numeric:tabular-nums;
  font-size:13px;
  font-weight:700;
  color:var(--brand);
  background:rgba(184,69,47,.08);
  border-radius:999px;
  padding:2px 9px;
  flex:none;
}
.tl-card p{margin-top:10px;color:var(--muted);font-size:15px;line-height:1.8}
.tl-meta{margin-top:14px;display:flex;gap:8px;flex-wrap:wrap}

/* ---------- aside ---------- */
.aside{
  position:sticky;
  top:96px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
@media (max-width:1024px){
  .aside{position:static}
}
.aside-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:22px;
  box-shadow:var(--sh-1);
}
.aside-card h3{
  font-size:16px;
  font-weight:700;
  margin-bottom:14px;
}
.faq{border-top:1px solid var(--line)}
.faq:first-of-type{border-top:0}
.faq summary{
  list-style:none;
  cursor:pointer;
  padding:14px 0;
  font-size:14.5px;
  font-weight:600;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:12px;
  transition:color .18s;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--brand)}
.faq .plus{
  flex:none;
  width:18px;
  height:18px;
  position:relative;
  margin-top:3px;
  transition:transform .2s ease;
}
.faq .plus::before,
.faq .plus::after{
  content:"";
  position:absolute;
  background:var(--brand);
  border-radius:2px;
}
.faq .plus::before{left:0;right:0;top:8px;height:2px}
.faq .plus::after{top:0;bottom:0;left:8px;width:2px}
.faq[open] .plus{transform:rotate(45deg)}
.faq .answer{
  padding:0 0 16px;
  font-size:14px;
  line-height:1.8;
  color:var(--muted);
}
.aside-card .btn{width:100%;margin-top:18px}

/* ---------- judge ---------- */
.judge{
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);
  gap:24px;
  align-items:start;
}
@media (max-width:920px){
  .judge{grid-template-columns:1fr}
}
.judge-main{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.judge-main:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(184,69,47,.35)}
.judge-main figure{margin:0;overflow:hidden}
.judge-main img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease}
.judge-main:hover img{transform:scale(1.04)}
.judge-main .body{padding:24px}
.judge-main h3{font-size:20px;font-weight:700}
.judge-main p{margin-top:10px;color:var(--muted);font-size:15px}
.judge-side{display:flex;flex-direction:column;gap:18px}
.judge-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px;
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease;
}
.judge-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-2);
  border-color:rgba(184,69,47,.35);
  background:rgba(184,69,47,.03);
}
.judge-card .ico{
  width:40px;
  height:40px;
  border-radius:12px;
  background:var(--fill);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--brand);
  margin-bottom:14px;
}
.judge-card h3{font-size:18px;font-weight:700}
.judge-card p{margin-top:8px;color:var(--muted);font-size:14.5px}

/* ---------- stat band ---------- */
.stat-band{
  position:relative;
  overflow:hidden;
  border-radius:28px;
  padding:52px;
  color:#fff;
  background-image:linear-gradient(120deg,rgba(43,58,66,.95) 0%,rgba(43,58,66,.82) 55%,rgba(43,58,66,.66) 100%),url(/assets/images/backpic/back-2.webp);
  background-size:cover;
  background-position:center;
  box-shadow:var(--sh-3);
}
.stat-band h2{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:800;
  letter-spacing:-.02em;
  max-width:24em;
}
.stat-band .sub{
  margin-top:12px;
  color:rgba(255,255,255,.72);
  font-size:15px;
  max-width:44em;
}
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
  margin-top:34px;
}
.stat-cell{
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-md);
  padding:20px;
  transition:background .2s ease,transform .2s ease;
}
.stat-cell:hover{background:rgba(255,255,255,.12);transform:translateY(-3px)}
.stat-cell .num{
  font-variant-numeric:tabular-nums;
  font-size:30px;
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.1;
  color:#fff;
}
.stat-cell .num span{font-size:14px;font-weight:600;color:var(--accent);margin-left:4px}
.stat-cell .label{margin-top:8px;font-size:13px;color:rgba(255,255,255,.7)}
@media (max-width:1024px){
  .stat-band{padding:36px}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:520px){
  .stat-band{padding:28px 22px;border-radius:22px}
  .stat-cell .num{font-size:24px}
}

/* ---------- cta ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:28px;
  padding:48px;
  background:var(--grad);
  color:#fff;
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:36px;
  align-items:center;
  box-shadow:var(--sh-3);
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-90px;
  top:-90px;
  width:280px;
  height:280px;
  border-radius:50%;
  background:rgba(255,255,255,.08);
  pointer-events:none;
}
.cta-band h2{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:800;
  letter-spacing:-.02em;
}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.85);font-size:15px;max-width:32em}
.cta-form{position:relative;z-index:1;display:flex;flex-direction:column;gap:12px}
.cta-form .field{display:flex;flex-direction:column;gap:6px}
.cta-form label{font-size:13px;font-weight:600;color:rgba(255,255,255,.9)}
.cta-form input,
.cta-form textarea{
  width:100%;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.35);
  background:#fff;
  color:var(--ink);
  padding:13px 16px;
  font-size:14px;
  outline:0;
  transition:box-shadow .18s ease,border-color .18s ease;
}
.cta-form textarea{resize:vertical;min-height:76px;line-height:1.7}
.cta-form input::placeholder,
.cta-form textarea::placeholder{color:var(--weak)}
.cta-form input:focus,
.cta-form textarea:focus{
  border-color:var(--brand-deep);
  box-shadow:0 0 0 3px rgba(255,255,255,.35);
}
.cta-form .btn-primary{
  background:#fff;
  color:var(--brand-deep);
  box-shadow:0 10px 24px -12px rgba(28,25,23,.5);
  margin-top:4px;
}
.cta-form .btn-primary:hover{background:#fff;transform:translateY(-1px)}
.cta-form .hint{font-size:12px;color:rgba(255,255,255,.72)}
@media (max-width:900px){
  .cta-band{grid-template-columns:1fr;padding:34px 26px;border-radius:22px}
}

/* ---------- footer ---------- */
.site-footer{
  background:var(--slate);
  color:#fff;
  border-radius:28px 28px 0 0;
  margin-top:80px;
  padding:56px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr .8fr .8fr 1.1fr;
  gap:36px;
}
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:640px){
  .footer-grid{grid-template-columns:1fr}
}
.site-footer .brand{color:#fff}
.site-footer .brand-mark{background:var(--grad)}
.site-footer .brand-main{color:#fff}
.site-footer .brand-sub{color:rgba(255,255,255,.6)}
.footer-about{
  margin-top:16px;
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.68);
  max-width:34em;
}
.footer-key{
  margin-top:12px;
  font-size:12px;
  letter-spacing:.04em;
  color:var(--accent);
}
.footer-col h4,
.footer-sub h4{
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:rgba(255,255,255,.55);
  margin-bottom:16px;
}
.footer-col a{
  display:block;
  font-size:14px;
  color:rgba(255,255,255,.78);
  text-decoration:none;
  padding:5px 0;
  transition:color .18s ease,transform .18s ease;
}
.footer-col a:hover{color:var(--accent);transform:translateX(2px)}
.footer-sub p{
  font-size:14px;
  color:rgba(255,255,255,.68);
  line-height:1.75;
}
.sub-form{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap}
.sub-form input{
  flex:1 1 150px;
  min-width:0;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.08);
  color:#fff;
  padding:11px 14px;
  font-size:14px;
  outline:0;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.sub-form input::placeholder{color:rgba(255,255,255,.45)}
.sub-form input:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(232,163,61,.22);
}
.sub-form .btn{flex:none}
.footer-bottom{
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.72);text-decoration:none}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .cmd-search{width:190px}
  .cmd-search:focus-within{width:230px}
}
@media (max-width:1024px){
  .nav-links{display:none}
  .cmd-search{display:none}
  .hamburger{display:inline-flex}
  .header-actions .btn-primary{display:none}
  .section{padding:56px 0}
}
@media (max-width:640px){
  .container{padding:0 18px}
  .header-inner{height:62px;gap:12px}
  .brand-sub{font-size:10px}
  .page-head{padding:32px 0 4px}
  .tl-card{padding:18px}
  .aside-card{padding:18px}
  .site-footer{border-radius:22px 22px 0 0;padding:40px 0 22px;margin-top:56px}
  .footer-bottom{font-size:12px}
}