/* roulang page: index */
:root{
  --brand:#0f6b60;
  --brand-dark:#0a5148;
  --brand-light:#17907f;
  --brand-soft:#e8f5f2;
  --accent:#d98324;
  --accent-soft:#fdf2e3;
  --ink:#0f1b24;
  --ink-soft:#33414f;
  --muted:#63727f;
  --line:#e2e9e7;
  --bg:#f6f9f8;
  --surface:#ffffff;
  --radius-lg:16px;
  --radius:12px;
  --radius-sm:8px;
  --shadow-sm:0 1px 2px rgba(13,42,38,.05),0 2px 10px rgba(13,42,38,.04);
  --shadow-md:0 12px 32px rgba(13,42,38,.10);
  --shadow-lg:0 24px 56px rgba(13,42,38,.16);
  --maxw:1180px;
}
*,*::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:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:15px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.32;letter-spacing:-.01em;color:var(--ink)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .18s ease}
img{max-width:100%;display:block;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
:focus-visible{outline:2px solid var(--brand-light);outline-offset:3px;border-radius:6px}
::selection{background:var(--brand-soft);color:var(--brand-dark)}
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:20px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.94);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line);transition:box-shadow .22s ease}
.site-header.is-stuck{box-shadow:0 8px 28px rgba(13,42,38,.09)}
.header-top{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:11px;background:linear-gradient(140deg,var(--brand-light),var(--brand-dark));color:#fff;font-size:16px;font-weight:800;box-shadow:0 6px 16px rgba(15,107,96,.28);flex:none}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.header-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center;color:var(--ink-soft);transition:.18s}
.nav-toggle:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand-light)}
.icon-nav{display:flex;align-items:center;gap:8px;padding:6px 0 10px;overflow-x:auto;scrollbar-width:none}
.icon-nav::-webkit-scrollbar{display:none}
.icon-nav-item{display:inline-flex;align-items:center;gap:8px;padding:8px 15px;border-radius:999px;font-size:14px;font-weight:600;color:var(--muted);border:1px solid transparent;white-space:nowrap;transition:background .18s ease,color .18s ease,border-color .18s ease}
.icon-nav-item svg{width:16px;height:16px;flex:none}
.icon-nav-item:hover{background:var(--brand-soft);color:var(--brand-dark)}
.icon-nav-item.active{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(15,107,96,.26)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;min-height:44px;border-radius:10px;font-size:15px;font-weight:700;border:1px solid transparent;transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease}
.btn-sm{padding:8px 16px;min-height:38px;font-size:14px;border-radius:9px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(15,107,96,.24)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 14px 30px rgba(15,107,96,.30)}
.btn-outline{border-color:rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.06)}
.btn-outline:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}
.btn-ghost{border-color:var(--line);color:var(--ink-soft);background:#fff}
.btn-ghost:hover{border-color:var(--brand-light);color:var(--brand-dark);transform:translateY(-2px)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 24px rgba(217,131,36,.28)}
.btn-accent:hover{background:#c2741d;transform:translateY(-2px)}

/* ---------- hero ---------- */
.hero{position:relative;isolation:isolate;color:#fff;background:#082e29 url('/assets/images/backpic/back-2.webp') center/cover no-repeat}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(115deg,rgba(6,38,33,.97) 0%,rgba(7,45,39,.93) 46%,rgba(9,54,47,.74) 100%)}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center;padding-block:72px 84px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.20);font-size:13px;letter-spacing:.04em;color:#d8f3ec}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:#63d6c1;display:block}
.hero h1{font-size:clamp(27px,3.3vw,41px);color:#fff;margin:18px 0 16px;line-height:1.28}
.hero-lead{color:#cfe7e2;font-size:15.5px;line-height:1.88;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tags li{padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);font-size:13px;color:#d5ece7}
.hero-panel{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:18px;padding:18px;box-shadow:var(--shadow-lg)}
.panel-bar{display:flex;align-items:center;gap:8px;margin-bottom:14px}
.panel-bar .dot{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.24)}
.panel-bar .dot:first-child{background:#e8734a}
.panel-bar .dot:nth-child(2){background:#e8b64a}
.panel-bar .dot:nth-child(3){background:#4fc4a8}
.panel-title{margin-left:auto;font-size:12px;letter-spacing:.08em;color:#9ecfc6;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.code-block{margin:0;padding:16px 18px;border-radius:12px;background:rgba(2,20,18,.74);border:1px solid rgba(255,255,255,.10);color:#b9e6dd;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;font-size:12.5px;line-height:1.9;overflow-x:auto;white-space:pre}
.code-block .k{color:#f4b860}
.code-block .s{color:#8fd9c9}
.code-block .n{color:#8fb8e6}
.panel-foot{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:16px}
.panel-foot div{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);border-radius:10px;padding:10px 12px;text-align:center}
.panel-foot strong{display:block;font-size:17px;color:#fff;letter-spacing:.02em}
.panel-foot span{font-size:11.5px;color:#9ecfc6}

/* ---------- sections ---------- */
.section{padding:72px 0}
.section--tight{padding:52px 0}
.section--alt{background:#eef4f2}
.section--white{background:#fff}
.section--dark{background:#0a2b26;color:#d7ece8}
.section--dark h2,.section--dark h3{color:#fff}
.section-head{max-width:760px;margin-bottom:38px}
.section-head .rule{width:44px;height:3px;border-radius:2px;background:var(--accent);margin-bottom:16px}
.section-head h2{font-size:clamp(22px,2.3vw,29px);margin-bottom:12px}
.section-head p{color:var(--muted);font-size:15px;line-height:1.85}
.section--dark .section-head p{color:#a9ccc5}
.center-head{max-width:720px;margin-inline:auto;text-align:center}
.center-head .rule{margin-inline:auto}

/* ---------- grids & cards ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c6dcd6}

/* stat */
.stat-card{padding:24px 22px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c6dcd6}
.stat-card .num{font-size:30px;font-weight:800;color:var(--brand-dark);letter-spacing:-.02em;line-height:1.2}
.stat-card .num em{font-style:normal;font-size:15px;color:var(--muted);margin-left:4px;font-weight:600}
.stat-card .label{margin-top:6px;font-size:14px;font-weight:700;color:var(--ink-soft)}
.stat-card .desc{margin-top:6px;font-size:13px;color:var(--muted);line-height:1.7}

/* category entry */
.cat-card{padding:26px 24px;display:flex;flex-direction:column;gap:12px;height:100%}
.cat-icon{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;background:var(--brand-soft);color:var(--brand-dark)}
.cat-icon svg{width:22px;height:22px}
.cat-card h3{font-size:18px}
.cat-card p{font-size:14px;color:var(--muted);line-height:1.8}
.cat-card .cat-link{margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand-dark)}
.cat-card .cat-link:hover{color:var(--accent)}

/* feature */
.feature{padding:24px 22px;display:flex;gap:16px;align-items:flex-start}
.feature .ic{flex:none;width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--brand-soft);color:var(--brand-dark)}
.feature .ic svg{width:20px;height:20px}
.feature h3{font-size:16px;margin-bottom:6px}
.feature p{font-size:13.5px;color:var(--muted);line-height:1.78}

/* compare table */
.compare-table{width:100%;border-collapse:separate;border-spacing:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm)}
.compare-table th,.compare-table td{padding:15px 20px;text-align:left;font-size:14px;border-bottom:1px solid var(--line);vertical-align:top}
.compare-table thead th{background:var(--brand-soft);color:var(--brand-dark);font-size:13.5px;font-weight:700;letter-spacing:.02em}
.compare-table tbody tr:last-child td{border-bottom:0}
.compare-table td:first-child{color:var(--ink-soft);font-weight:700;width:26%}
.compare-table .good{color:var(--brand-dark);font-weight:700}

/* timeline */
.timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.tl-item{position:relative;padding-top:30px}
.tl-item::before{content:"";position:absolute;top:6px;left:0;width:13px;height:13px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(15,107,96,.14)}
.tl-item::after{content:"";position:absolute;top:12px;left:22px;right:-20px;height:2px;background:linear-gradient(90deg,#cfe2dd,transparent)}
.tl-item:last-child::after{display:none}
.tl-item .when{font-size:13px;font-weight:800;color:var(--accent);letter-spacing:.04em}
.tl-item h3{font-size:15.5px;margin:6px 0 6px}
.tl-item p{font-size:13.5px;color:var(--muted);line-height:1.78}

/* cms post cards */
.post-card{overflow:hidden;display:flex;flex-direction:column;height:100%}
.post-link{display:flex;flex-direction:column;height:100%}
.post-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#dbe7e3}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.post-card:hover .post-thumb img{transform:scale(1.05)}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.tag{display:inline-flex;align-items:center;gap:6px;align-self:flex-start;padding:3px 10px;border-radius:999px;background:var(--brand-soft);color:var(--brand-dark);font-size:12px;font-weight:700;letter-spacing:.02em}
.post-body h3{font-size:16px;line-height:1.55;transition:color .18s ease}
.post-card:hover .post-body h3{color:var(--brand-dark)}
.post-body p{font-size:13.5px;color:var(--muted);line-height:1.78;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:#8а97 a1;color:#8a97a1}
.post-meta .more{font-weight:700;color:var(--brand-dark)}

/* news rows */
.news-list{display:grid;gap:14px}
.news-row{display:flex;gap:18px;padding:16px 18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;align-items:center}
.news-row:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c6dcd6}
.news-thumb{flex:none;width:104px;height:72px;border-radius:10px;overflow:hidden;background:#dbe7e3}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-main{min-width:0;flex:1}
.news-main h3{font-size:15.5px;margin-bottom:4px;transition:color .18s ease}
.news-row:hover .news-main h3{color:var(--brand-dark)}
.news-main p{font-size:13px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-date{flex:none;font-size:12.5px;color:#8a97a1;font-weight:600}

/* tags cloud */
.topic-tags{display:flex;flex-wrap:wrap;gap:12px}
.topic-tags li a,.topic-tags li span{display:inline-flex;align-items:center;padding:9px 18px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:14px;font-weight:600;color:var(--ink-soft);transition:.18s ease}
.topic-tags li a:hover,.topic-tags li span:hover{border-color:var(--brand-light);color:var(--brand-dark);background:var(--brand-soft);transform:translateY(-2px)}

/* scene matrix */
.scene-col{padding:26px 24px}
.scene-col h3{font-size:17px;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.scene-col ul{display:grid;gap:12px}
.scene-col li{position:relative;padding-left:26px;font-size:14px;color:var(--ink-soft);line-height:1.78}
.scene-col li::before{content:"";position:absolute;left:0;top:8px;width:14px;height:14px;border-radius:50%;background:var(--brand-soft);border:4px solid var(--brand-light)}
.scene-col.mute li::before{background:#f1f4f3;border-color:#c8d3d0}

/* quotes */
.quote{padding:24px 22px;display:flex;flex-direction:column;gap:14px;height:100%}
.quote p{font-size:14px;color:var(--ink-soft);line-height:1.85}
.quote .who{display:flex;align-items:center;gap:10px;margin-top:auto}
.avatar{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--brand-soft);color:var(--brand-dark);font-size:13px;font-weight:800}
.who span{font-size:13px;color:var(--muted)}

/* guarantee bar */
.guard{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.guard-item{display:flex;gap:12px;align-items:flex-start;padding:20px 18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease}
.guard-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.guard-item .ic{flex:none;width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:var(--accent-soft);color:#a9620f}
.guard-item .ic svg{width:18px;height:18px}
.guard-item strong{display:block;font-size:14.5px;margin-bottom:2px}
.guard-item span{font-size:12.8px;color:var(--muted);line-height:1.7}

/* schema panel */
.fields-panel{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.field-list{display:grid;gap:14px}
.field-list li{display:flex;gap:14px;align-items:flex-start;padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);box-shadow:var(--shadow-sm)}
.field-list .k{flex:none;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;font-weight:700;color:var(--brand-dark);background:var(--brand-soft);padding:2px 10px;border-radius:6px}
.field-list .v{font-size:13.5px;color:var(--muted);line-height:1.72}
.shot{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-md);background:#fff}
.shot img{width:100%;aspect-ratio:16/10;object-fit:cover}

/* quick answers */
.qa{padding:22px 20px;height:100%}
.qa .q{font-size:15px;font-weight:800;margin-bottom:8px;display:flex;gap:8px}
.qa .q em{font-style:normal;color:var(--accent)}
.qa p{font-size:13.5px;color:var(--muted);line-height:1.8}

/* faq */
.faq-list{display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease}
.faq-item:hover{border-color:#c6dcd6;box-shadow:var(--shadow-md)}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 22px;font-size:15px;font-weight:700;display:flex;align-items:center;justify-content:space-between;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:20px;font-weight:400;color:var(--brand);line-height:1;flex:none;transition:transform .2s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .ans{padding:0 22px 20px;font-size:14px;color:var(--muted);line-height:1.85}

/* form */
.cta-wrap{display:grid;grid-template-columns:.95fr 1.05fr;gap:44px;align-items:center;padding-block:70px}
.cta-copy h2{font-size:clamp(22px,2.4vw,30px);color:#fff;margin-bottom:14px}
.cta-copy p{color:#a9ccc5;font-size:14.5px;line-height:1.85}
.cta-points{display:grid;gap:10px;margin-top:22px}
.cta-points li{display:flex;gap:10px;align-items:center;color:#cfe7e2;font-size:14px}
.cta-points svg{width:17px;height:17px;color:#63d6c1;flex:none}
.form-card{background:#fff;border-radius:var(--radius-lg);padding:26px 24px;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.4)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.field label{font-size:13px;font-weight:700;color:var(--ink-soft)}
.field input,.field select,.field textarea{width:100%;padding:11px 14px;border-radius:9px;border:1px solid var(--line);background:#f9fbfa;font-size:14px;color:var(--ink);transition:border-color .18s ease,box-shadow .18s ease,background .18s ease}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand-light);background:#fff;box-shadow:0 0 0 3px rgba(23,144,127,.14)}
.field textarea{resize:vertical;min-height:96px}
.form-note{font-size:12.5px;color:var(--muted);margin-top:8px;text-align:center}
.form-msg{display:none;margin-top:12px;padding:10px 14px;border-radius:9px;background:var(--brand-soft);color:var(--brand-dark);font-size:13.5px;font-weight:700;text-align:center}
.form-msg.show{display:block}

/* empty */
.empty{padding:34px 20px;text-align:center;color:var(--muted);font-size:14px;background:#fff;border:1px dashed #c6dcd6;border-radius:var(--radius)}

/* footer */
.site-footer{background:#082521;color:#a9ccc5;border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;padding-block:56px 36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{box-shadow:none}
.footer-brand strong{font-size:16.5px;color:#fff;letter-spacing:.01em}
.footer-desc{font-size:13.5px;line-height:1.85;color:#8fb3ac;max-width:380px}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.03em}
.footer-col ul{display:grid;gap:10px}
.footer-col a,.footer-col span{font-size:13.5px;color:#9dc0b9;transition:color .18s ease}
.footer-col a:hover{color:#63d6c1}
.footer-bottom{border-top:1px solid rgba(255,255,255,.09);padding-block:20px 26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;font-size:12.5px;color:#7fa49d}

/* responsive */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px;padding-block:56px 64px}
  .hero-lead{max-width:none}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
  .tl-item:nth-child(2)::after{display:none}
  .guard{grid-template-columns:repeat(2,minmax(0,1fr))}
  .fields-panel{grid-template-columns:1fr;gap:28px}
  .cta-wrap{grid-template-columns:1fr;gap:30px;padding-block:56px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:820px){
  .nav-toggle{display:flex}
  .header-cta{display:none}
  .icon-nav{display:none;padding-top:0}
  .icon-nav.open{display:flex;flex-wrap:wrap;overflow:visible;padding-bottom:12px}
  .site-header{border-bottom:1px solid var(--line)}
}
@media (max-width:760px){
  .section{padding:52px 0}
  .section--tight{padding:40px 0}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .compare-table th,.compare-table td{padding:12px 14px;font-size:13px}
  .compare-table td:first-child{width:34%}
  .news-row{flex-wrap:wrap;gap:12px}
  .news-thumb{width:100%;height:150px}
  .news-date{width:100%;text-align:left}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .form-row{grid-template-columns:1fr}
  .hero-tags li{font-size:12.5px}
  .timeline{grid-template-columns:1fr}
  .tl-item::after{display:none}
  .guard{grid-template-columns:1fr}
  .panel-foot{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding-inline:16px}
  .brand-text{font-size:15.5px}
  .header-top{height:58px}
  .hero-grid{padding-block:44px 52px}
  .card,.stat-card,.cat-card,.feature{padding:18px 16px}
  .btn{width:100%}
  .hero-actions{flex-direction:column;align-items:stretch}
  .form-card{padding:20px 16px}
}

/* roulang page: category1 */
:root{
 --brand:#0f6b60;
 --brand-dark:#0a5148;
 --brand-light:#17907f;
 --brand-soft:#e8f5f2;
 --accent:#d98324;
 --accent-soft:#fdf2e3;
 --ink:#0f1b24;
 --ink-soft:#33414f;
 --muted:#63727f;
 --line:#e2e9e7;
 --bg:#f6f9f8;
 --surface:#ffffff;
 --radius-lg:16px;
 --radius:12px;
 --radius-sm:8px;
 --shadow-sm:0 1px 2px rgba(13,42,38,.05),0 2px 10px rgba(13,42,38,.04);
 --shadow-md:0 12px 32px rgba(13,42,38,.10);
 --shadow-lg:0 24px 56px rgba(13,42,38,.16);
 --maxw:1180px;
}
*,*::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:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
 font-size:15px;line-height:1.78;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .18s ease}
img{max-width:100%;display:block;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
:focus-visible{outline:2px solid var(--brand-light);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:20px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.94);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line);transition:box-shadow .22s ease}
.site-header.is-stuck{box-shadow:0 8px 28px rgba(13,42,38,.09)}
.header-top{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:11px;background:linear-gradient(140deg,var(--brand-light),var(--brand-dark));color:#fff;font-size:16px;font-weight:800;box-shadow:0 6px 16px rgba(15,107,96,.28);flex:none}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.header-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center;color:var(--ink-soft);transition:.18s}
.nav-toggle:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand-light)}
.icon-nav{display:flex;align-items:center;gap:8px;padding:6px 0 10px;overflow-x:auto;scrollbar-width:none}
.icon-nav::-webkit-scrollbar{display:none}
.icon-nav-item{display:inline-flex;align-items:center;gap:8px;padding:8px 15px;border-radius:999px;font-size:14px;font-weight:600;color:var(--muted);border:1px solid transparent;white-space:nowrap;transition:background .18s ease,color .18s ease,border-color .18s ease}
.icon-nav-item svg{width:16px;height:16px;flex:none}
.icon-nav-item:hover{background:var(--brand-soft);color:var(--brand-dark)}
.icon-nav-item.active{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(15,107,96,.26)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;min-height:44px;border-radius:10px;font-size:15px;font-weight:700;border:1px solid transparent;transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease}
.btn-sm{padding:8px 16px;min-height:38px;font-size:14px;border-radius:9px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(15,107,96,.24)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 14px 30px rgba(15,107,96,.30)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 24px rgba(217,131,36,.28)}
.btn-accent:hover{background:#c2741d;transform:translateY(-2px)}
.btn-ghost{border-color:var(--line);color:var(--ink-soft);background:#fff}
.btn-ghost:hover{border-color:var(--brand-light);color:var(--brand-dark);transform:translateY(-2px)}
.btn-outline{border-color:rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.06)}
.btn-outline:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}

/* ---------- hero ---------- */
.hero{position:relative;isolation:isolate;color:#fff;background:#082e29 url('/assets/images/backpic/back-4.webp') center/cover no-repeat}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(118deg,rgba(6,38,33,.97) 0%,rgba(7,45,39,.93) 48%,rgba(10,58,50,.78) 100%)}
.hero-inner{padding-block:60px 68px;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.20);font-size:13px;letter-spacing:.04em;color:#d8f3ec}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:#63d6c1;display:block}
.hero h1{font-size:clamp(26px,3.2vw,40px);color:#fff;margin:18px auto 16px;line-height:1.3;max-width:900px}
.hero-lead{color:#cfe7e2;font-size:15.5px;line-height:1.9;max-width:780px;margin-inline:auto}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;justify-content:center}
.hero-tags li{padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);font-size:13px;color:#d5ece7}
.hero-reco{margin-top:32px;display:flex;flex-wrap:wrap;align-items:center;gap:22px;text-align:left;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.20);border-radius:18px;padding:20px 24px;box-shadow:var(--shadow-lg)}
.reco-head{min-width:200px}
.reco-badge{display:inline-block;padding:3px 10px;border-radius:999px;background:var(--accent);color:#fff;font-size:12px;font-weight:700;letter-spacing:.04em}
.reco-head strong{display:block;margin-top:9px;font-size:17px;color:#fff;font-weight:800}
.reco-specs{display:flex;flex-wrap:wrap;gap:10px 28px;flex:1 1 320px}
.reco-specs li{font-size:13px;color:#a9ccc5}
.reco-specs li span{display:block;font-size:11.5px;letter-spacing:.08em;color:#8fbcb4;margin-bottom:2px}
.reco-specs li b{color:#f1fbf8;font-size:14px;font-weight:700}
.hero-reco .btn{flex:none}

/* ---------- sections ---------- */
.section{padding:70px 0}
.section--tight{padding:52px 0}
.section--alt{background:#eef4f2}
.section--white{background:#fff}
.section-head{max-width:780px;margin-bottom:36px}
.section-head .rule{width:44px;height:3px;border-radius:2px;background:var(--accent);margin-bottom:16px}
.section-head h2{font-size:clamp(21px,2.3vw,28px);line-height:1.35;margin-bottom:12px;letter-spacing:.01em}
.section-head p{color:var(--muted);font-size:15px;line-height:1.86}

/* ---------- stat board ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.stat-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px 20px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#cfe3df}
.stat-num{font-size:30px;font-weight:800;color:var(--brand);line-height:1.1;letter-spacing:.01em}
.stat-num small{font-size:14px;font-weight:700;color:var(--brand-light);margin-left:4px}
.stat-label{margin-top:8px;font-size:14.5px;font-weight:700;color:var(--ink)}
.stat-note{margin-top:6px;font-size:13px;color:var(--muted);line-height:1.7}

/* ---------- algo cards ---------- */
.algo-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.algo-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px 22px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.algo-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe3df}
.algo-icon{width:44px;height:44px;border-radius:12px;background:var(--brand-soft);color:var(--brand-dark);display:grid;place-items:center;margin-bottom:16px}
.algo-icon svg{width:22px;height:22px}
.card-title{font-size:16.5px;font-weight:800;margin-bottom:9px;color:var(--ink)}
.card-text{font-size:14px;color:var(--muted);line-height:1.8}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{padding:4px 11px;border-radius:999px;background:var(--brand-soft);color:var(--brand-dark);font-size:12.5px;font-weight:600}
.tag--accent{background:var(--accent-soft);color:#a8641a}

/* ---------- scene cards ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.scene-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe3df}
.scene-thumb{aspect-ratio:16/9;overflow:hidden;background:#dfeae7}
.scene-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.scene-card:hover .scene-thumb img{transform:scale(1.04)}
.scene-body{padding:20px 22px 24px}
.scene-body .card-text{margin-bottom:12px}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;counter-reset:step}
.step{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px 20px 22px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#cfe3df}
.step-num{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--brand);color:#fff;font-size:15px;font-weight:800;margin-bottom:14px}
.step h3{font-size:15.5px;font-weight:800;margin-bottom:8px}
.step p{font-size:13.8px;color:var(--muted);line-height:1.8}

/* ---------- compare ---------- */
.compare-list{display:grid;gap:12px}
.compare-row{display:grid;grid-template-columns:1.1fr 1.2fr .8fr 1.5fr;gap:16px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px 20px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.compare-row:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#cfe3df}
.compare-row--head{background:transparent;border:0;box-shadow:none;padding-block:4px 6px;font-size:12.5px;letter-spacing:.08em;color:var(--muted);font-weight:700}
.compare-row--head:hover{transform:none;box-shadow:none}
.compare-hand{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13.5px;color:var(--ink);font-weight:700;letter-spacing:.02em}
.compare-struct{font-size:13.8px;color:var(--ink-soft)}
.compare-result span{display:inline-block;padding:3px 11px;border-radius:999px;font-size:12.5px;font-weight:700}
.badge-win{background:var(--brand-soft);color:var(--brand-dark)}
.badge-listen{background:var(--accent-soft);color:#a8641a}
.badge-none{background:#eef1f0;color:#6b7a77}
.compare-note{font-size:13.2px;color:var(--muted);line-height:1.7}

/* ---------- timeline ---------- */
.milestone-wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:start}
.timeline{position:relative;padding-left:26px}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--brand-light),#dbe8e4)}
.timeline-item{position:relative;padding-bottom:26px}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{content:"";position:absolute;left:-26px;top:6px;width:14px;height:14px;border-radius:50%;background:#fff;border:3px solid var(--brand);box-shadow:0 0 0 3px #fff}
.timeline-item h3{font-size:15.5px;font-weight:800;margin-bottom:6px}
.timeline-item p{font-size:13.8px;color:var(--muted);line-height:1.8}
.timeline-tag{display:inline-block;margin-bottom:6px;font-size:12px;font-weight:700;color:var(--brand);letter-spacing:.06em}
.guard-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px 24px;box-shadow:var(--shadow-sm)}
.guard-card h3{font-size:16.5px;font-weight:800;margin-bottom:16px}
.guard-list{display:grid;gap:14px}
.guard-list li{display:flex;gap:12px;align-items:flex-start}
.guard-list svg{width:20px;height:20px;flex:none;color:var(--brand);margin-top:2px}
.guard-list strong{display:block;font-size:14.5px;margin-bottom:3px}
.guard-list p{font-size:13.4px;color:var(--muted);line-height:1.75}

/* ---------- post list ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.post-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;display:flex;flex-direction:column}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe3df}
.post-link{display:flex;flex-direction:column;height:100%}
.post-thumb{aspect-ratio:16/9;overflow:hidden;background:#dfeae7}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:9px;flex:1}
.post-meta{display:flex;flex-wrap:wrap;gap:8px;font-size:12.5px;color:var(--muted)}
.post-meta span{padding:2px 10px;border-radius:999px;background:var(--brand-soft);color:var(--brand-dark);font-weight:600}
.post-title{font-size:15.5px;font-weight:800;line-height:1.55}
.post-card:hover .post-title{color:var(--brand-dark)}
.post-summary{font-size:13.6px;color:var(--muted);line-height:1.78}
.empty-note{background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius);padding:30px;text-align:center;color:var(--muted);font-size:14px}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:4px 20px;box-shadow:var(--shadow-sm);transition:border-color .2s ease,box-shadow .2s ease}
.faq-item[open]{border-color:#cfe3df;box-shadow:var(--shadow-md)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:16px 0;font-size:15px;font-weight:700;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand-dark)}
.faq-item summary svg{width:18px;height:18px;flex:none;color:var(--brand);transition:transform .2s ease}
.faq-item[open] summary svg{transform:rotate(45deg)}
.faq-answer{padding:0 0 18px;font-size:14px;color:var(--muted);line-height:1.85}

/* ---------- submit ---------- */
.submit-wrap{display:grid;grid-template-columns:.95fr 1.05fr;gap:36px;align-items:start}
.submit-info h2{font-size:clamp(21px,2.3vw,27px);margin-bottom:14px;line-height:1.38}
.submit-info p{color:var(--muted);font-size:14.6px;line-height:1.88;margin-bottom:18px}
.submit-points{display:grid;gap:12px;margin-top:6px}
.submit-points li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-soft)}
.submit-points svg{width:18px;height:18px;flex:none;color:var(--brand);margin-top:3px}
.submit-form{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px 24px;box-shadow:var(--shadow-md)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:14px}
.field label{font-size:13.5px;font-weight:700;color:var(--ink-soft)}
.field input,.field select,.field textarea{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fbfdfc;font-size:14px;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand-light);background:#fff;box-shadow:0 0 0 3px rgba(23,144,127,.14)}
.field textarea{min-height:110px;resize:vertical}
.form-tip{font-size:12.8px;color:var(--muted);margin-top:10px;line-height:1.7}
.form-tip.is-ok{color:var(--brand-dark);font-weight:700}
.submit-form .btn{width:100%;margin-top:6px}

/* ---------- footer ---------- */
.site-footer{background:#0a2b26;color:#c6ded9;margin-top:0;border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:36px;padding-block:56px 40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(140deg,var(--brand-light),var(--brand-dark))}
.footer-brand strong{color:#fff;font-size:16.5px;font-weight:800}
.footer-desc{font-size:13.8px;color:#9dbdb7;line-height:1.85;max-width:420px}
.footer-col h3{font-size:14px;color:#fff;font-weight:800;margin-bottom:14px;letter-spacing:.03em}
.footer-col ul{display:grid;gap:9px}
.footer-col a,.footer-col span{font-size:13.6px;color:#9dbdb7;transition:color .18s ease}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);padding-block:18px 22px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;font-size:12.8px;color:#87a8a2}

/* ---------- responsive ---------- */
@media (max-width:1024px){
 .stat-grid,.algo-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
 .scene-grid,.post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .milestone-wrap,.submit-wrap{grid-template-columns:1fr}
 .compare-row{grid-template-columns:1fr 1fr;gap:10px 16px}
 .compare-row--head{display:none}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:860px){
 .nav-toggle{display:inline-flex}
 .icon-nav{display:none;padding:4px 0 14px}
 .icon-nav.is-open{display:flex;flex-direction:column;align-items:stretch;gap:6px}
 .icon-nav.is-open .icon-nav-item{justify-content:flex-start;padding:11px 14px;border-radius:10px;min-height:44px}
 .header-cta{display:none}
 .hero-inner{padding-block:46px 54px;text-align:left}
 .hero h1,.hero-lead{margin-inline:0}
 .hero-tags{justify-content:flex-start}
 .hero-reco{gap:16px;padding:18px}
}
@media (max-width:768px){
 .section{padding:52px 0}
 .section--tight{padding:42px 0}
 .hero-inner{padding-block:40px 46px}
 .scene-grid,.post-grid{grid-template-columns:1fr}
 .stat-grid,.algo-grid,.steps{grid-template-columns:1fr 1fr}
 .section-head{margin-bottom:28px}
}
@media (max-width:520px){
 .container{padding-inline:16px}
 .brand-text{font-size:15px}
 .stat-grid,.algo-grid,.steps{grid-template-columns:1fr}
 .form-row{grid-template-columns:1fr}
 .compare-row{grid-template-columns:1fr;gap:6px}
 .footer-grid{grid-template-columns:1fr;gap:24px}
 .hero-reco .btn{width:100%}
 .btn{width:100%}
 .hero-actions .btn{width:auto}
 .footer-bottom{flex-direction:column}
}

/* roulang page: article */
:root{
  --brand:#0f6b60;
  --brand-dark:#0a5148;
  --brand-light:#17907f;
  --brand-soft:#e8f5f2;
  --accent:#d98324;
  --accent-soft:#fdf2e3;
  --ink:#0f1b24;
  --ink-soft:#33414f;
  --muted:#63727f;
  --line:#e2e9e7;
  --bg:#f6f9f8;
  --surface:#ffffff;
  --radius-lg:16px;
  --radius:12px;
  --radius-sm:8px;
  --shadow-sm:0 1px 2px rgba(13,42,38,.05),0 2px 10px rgba(13,42,38,.04);
  --shadow-md:0 12px 32px rgba(13,42,38,.10);
  --shadow-lg:0 24px 56px rgba(13,42,38,.16);
  --maxw:1180px;
}
*,*::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:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:15px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color .18s ease}
img{max-width:100%;display:block;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:20px}
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:20px}
:focus-visible{outline:3px solid rgba(217,131,36,.55);outline-offset:2px}
/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.94);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line);transition:box-shadow .22s ease}
.site-header.is-stuck{box-shadow:0 8px 28px rgba(13,42,38,.09)}
.header-top{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:11px;background:linear-gradient(140deg,var(--brand-light),var(--brand-dark));color:#fff;font-size:16px;font-weight:800;box-shadow:0 6px 16px rgba(15,107,96,.28);flex:none}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.header-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center;color:var(--ink-soft);transition:.18s}
.nav-toggle:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand-light)}
.icon-nav{display:flex;align-items:center;gap:8px;padding:6px 0 10px;overflow-x:auto;scrollbar-width:none}
.icon-nav::-webkit-scrollbar{display:none}
.icon-nav-item{display:inline-flex;align-items:center;gap:8px;padding:8px 15px;border-radius:999px;font-size:14px;font-weight:600;color:var(--muted);border:1px solid transparent;white-space:nowrap;transition:background .18s ease,color .18s ease,border-color .18s ease}
.icon-nav-item svg{width:16px;height:16px;flex:none}
.icon-nav-item:hover{background:var(--brand-soft);color:var(--brand-dark)}
.icon-nav-item.active{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(15,107,96,.26)}
/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;min-height:44px;border-radius:10px;font-size:15px;font-weight:700;border:1px solid transparent;transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease}
.btn-sm{padding:8px 16px;min-height:38px;font-size:14px;border-radius:9px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(15,107,96,.24)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 14px 30px rgba(15,107,96,.30)}
.btn-outline{border-color:rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.06)}
.btn-outline:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}
.btn-ghost{border-color:var(--line);color:var(--ink-soft);background:#fff}
.btn-ghost:hover{border-color:var(--brand-light);color:var(--brand-dark);transform:translateY(-2px)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 24px rgba(217,131,36,.28)}
.btn-accent:hover{background:#c2741d;transform:translateY(-2px)}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}
/* ---------- article hero ---------- */
.article-hero{position:relative;isolation:isolate;color:#fff;background:#082e29 url('/assets/images/backpic/back-5.webp') center/cover no-repeat;padding:48px 0 62px;overflow:hidden}
.article-hero::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(118deg,rgba(6,38,33,.97) 0%,rgba(7,45,39,.94) 45%,rgba(9,54,47,.76) 100%)}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:#a9d2ca}
.breadcrumb a{color:#d5efea}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.55}
.article-kicker{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.20);font-size:13px;letter-spacing:.04em;color:#d8f3ec;margin-top:20px}
.article-kicker i{width:6px;height:6px;border-radius:50%;background:#63d6c1;display:block}
.article-title{font-size:clamp(25px,3.4vw,41px);line-height:1.32;color:#fff;margin:16px 0 14px;max-width:920px;font-weight:800}
.article-summary{color:#cfe7e2;font-size:15.5px;line-height:1.9;max-width:800px}
.article-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.meta-pill{display:inline-flex;align-items:center;gap:7px;padding:6px 13px;border-radius:999px;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);color:#d9efeb;font-size:13px}
.meta-pill svg{width:14px;height:14px;flex:none}
/* ---------- sections ---------- */
.section{padding:72px 0}
.section--tight{padding:50px 0}
.section--alt{background:#eef4f2}
.section--white{background:#fff}
.section--dark{background:#0a2b26;color:#d7ece8}
.section--dark h2,.section--dark h3{color:#fff}
.section-head{max-width:780px;margin-bottom:36px}
.section-head .rule{width:44px;height:3px;border-radius:2px;background:var(--accent);margin-bottom:16px}
.section-head h2{font-size:clamp(22px,2.3vw,29px);margin-bottom:12px}
.section-head p{color:var(--muted);font-size:15px;line-height:1.85;margin:0}
.section--dark .section-head p{color:#a9ccc5}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand-dark)}
.text-link:hover{color:var(--brand-light)}
/* ---------- grids & cards ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c9ded9}
.card h3{font-size:17px;margin-bottom:8px;line-height:1.5}
.card p{color:var(--muted);font-size:14px;line-height:1.8;margin:0}
.card-top{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.icon-badge{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:var(--brand-soft);color:var(--brand-dark);flex:none}
.icon-badge svg{width:19px;height:19px}
.tag{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;background:var(--brand-soft);color:var(--brand-dark);font-size:13px;font-weight:600;line-height:1.6}
.tag--accent{background:var(--accent-soft);color:#a8631a}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
/* ---------- article layout ---------- */
.article-wrap{max-width:900px;margin:0 auto}
.article-cover{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm);margin-bottom:26px;background:#fff}
.article-cover img{width:100%;aspect-ratio:16/7;object-fit:cover}
.article-cover figcaption{padding:12px 18px;font-size:13px;color:var(--muted);background:#fff;border-top:1px solid var(--line)}
.article-body{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:36px 40px;box-shadow:var(--shadow-sm);font-size:16px;line-height:1.85;color:var(--ink-soft);overflow-wrap:break-word}
.article-body h2{font-size:23px;color:var(--ink);margin:36px 0 14px;padding-left:14px;border-left:4px solid var(--accent);line-height:1.45}
.article-body h2:first-child{margin-top:0}
.article-body h3{font-size:19px;color:var(--ink);margin:28px 0 10px;line-height:1.5}
.article-body h4{font-size:16px;color:var(--ink);margin:22px 0 8px}
.article-body p{margin:0 0 16px}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px}
.article-body li{margin-bottom:8px}
.article-body a{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-light)}
.article-body strong{color:var(--ink)}
.article-body blockquote{margin:24px 0;padding:16px 20px;background:var(--brand-soft);border-left:4px solid var(--brand);border-radius:0 10px 10px 0;color:var(--ink-soft)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:22px 0;width:100%}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14px;line-height:1.7}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.article-body th{background:var(--brand-soft);color:var(--ink);font-weight:700}
.article-body code{background:#eef4f2;padding:2px 6px;border-radius:5px;font-size:14px;color:var(--brand-dark)}
.empty-state{background:#fff;border:1px dashed var(--line);border-radius:var(--radius-lg);padding:56px 24px;text-align:center}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--muted);margin-bottom:22px}
/* ---------- key points ---------- */
.point-card{position:relative;padding-top:22px}
.point-index{position:absolute;top:-14px;left:20px;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:var(--brand);color:#fff;font-weight:800;font-size:14px;box-shadow:0 8px 18px rgba(15,107,96,.24)}
.point-card h3{margin-top:8px}
/* ---------- stats ---------- */
.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow-sm)}
.stat-num{font-size:clamp(24px,2.4vw,31px);font-weight:800;color:var(--brand-dark);line-height:1.2;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.stat-label{font-size:13px;color:var(--muted);margin-top:6px}
/* ---------- pull quote ---------- */
.pull-quote{position:relative;background:#0a2b26;color:#e6f4f1;border-radius:var(--radius-lg);padding:42px 46px;overflow:hidden;box-shadow:var(--shadow-md)}
.pull-quote::before{content:"“";position:absolute;left:22px;top:8px;font-size:96px;line-height:1;color:rgba(99,214,193,.26);font-family:Georgia,serif}
.pull-quote p{position:relative;font-size:clamp(17px,2vw,21px);line-height:1.8;font-weight:700;margin:0 0 14px;padding-left:8px}
.pull-quote span{font-size:13.5px;color:#9ecfc6;padding-left:8px}
/* ---------- steps ---------- */
.step-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c9ded9}
.step-index{width:34px;height:34px;border-radius:10px;background:var(--brand-soft);color:var(--brand-dark);display:grid;place-items:center;font-weight:800;font-size:14px;margin-bottom:14px}
.step-card h3{font-size:16px;margin-bottom:8px}
.step-card p{color:var(--muted);font-size:14px;line-height:1.8;margin:0}
/* ---------- related ---------- */
.rel-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c9ded9}
.rel-card h3{font-size:16.5px;margin:12px 0 8px;line-height:1.55}
.rel-card p{color:var(--muted);font-size:14px;line-height:1.8;margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.rel-more{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:13.5px;font-weight:700;color:var(--brand-dark)}
/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;margin-inline:auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:border-color .2s ease,box-shadow .2s ease}
.faq-item[open]{border-color:#c9ded9;box-shadow:var(--shadow-md)}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 22px;font-weight:700;font-size:15.5px;display:flex;justify-content:space-between;gap:14px;align-items:center;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:21px;line-height:1;color:var(--brand);font-weight:700;flex:none}
.faq-item[open] summary::after{content:"−"}
.faq-body{padding:0 22px 20px;color:var(--ink-soft);font-size:14.5px;line-height:1.85}
.faq-body p{margin:0 0 10px}
.faq-body p:last-child{margin-bottom:0}
/* ---------- submit ---------- */
.submit-section{background:#0a2b26;color:#dcefeb;padding:72px 0}
.submit-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:44px;align-items:start}
.submit-copy h2{font-size:clamp(22px,2.4vw,29px);color:#fff;margin-bottom:14px}
.submit-copy p{color:#a9ccc5;font-size:15px;line-height:1.85;margin:0 0 18px;max-width:480px}
.submit-list{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.submit-list li{display:flex;gap:9px;align-items:flex-start;font-size:14px;color:#c5e2dc;line-height:1.75}
.submit-list svg{width:16px;height:16px;flex:none;margin-top:4px;color:#63d6c1}
.submit-form{background:#fff;border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow-lg);display:grid;gap:14px}
.submit-form h3{font-size:17px;color:var(--ink);margin:0 0 2px}
.field label{display:block;font-size:13px;font-weight:700;color:var(--ink-soft);margin-bottom:6px}
.field input,.field textarea,.field select{width:100%;border:1px solid var(--line);border-radius:9px;padding:10px 12px;font-size:14px;background:#fbfdfc;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;min-height:44px}
.field textarea{min-height:108px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--brand-light);box-shadow:0 0 0 3px rgba(23,144,127,.15);background:#fff}
.form-note{font-size:12.5px;color:var(--muted);line-height:1.7;margin:0}
/* ---------- footer ---------- */
.site-footer{background:#08231f;color:#bcd6d1;padding:56px 0 0;border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr;gap:36px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:14px;font-size:16px}
.footer-desc{font-size:14px;line-height:1.85;color:#9dbbb5;max-width:380px;margin:0}
.footer-col h3{font-size:14px;color:#fff;margin:0 0 14px;letter-spacing:.04em}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.footer-col a{font-size:14px;color:#a9c7c1}
.footer-col a:hover{color:#fff}
.footer-col span{font-size:14px;color:#8fada7}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);padding-top:18px;padding-bottom:18px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:#89a8a2}
/* ---------- responsive ---------- */
@media (max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .submit-grid{grid-template-columns:1fr;gap:30px}
  .footer-grid{grid-template-columns:1.2fr 1fr}
  .article-body{padding:30px 28px}
}
@media (max-width:820px){
  .nav-toggle{display:inline-flex}
  .icon-nav{display:none;flex-direction:column;align-items:stretch;gap:6px;padding:8px 0 14px;border-top:1px solid var(--line);margin-top:2px}
  .icon-nav.is-open{display:flex}
  .icon-nav-item{justify-content:flex-start;border-radius:10px;padding:10px 14px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .section{padding:52px 0}
  .section--tight{padding:42px 0}
  .grid-2,.grid-3{grid-template-columns:1fr}
  .article-hero{padding:38px 0 48px}
  .article-body{padding:26px 20px;font-size:15px}
  .article-body h2{font-size:20px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .pull-quote{padding:28px 22px}
  .pull-quote p{font-size:17px}
  .submit-section{padding:52px 0}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:6px}
  .section-head-row{align-items:flex-start}
}
@media (max-width:520px){
  .container{padding-inline:16px}
  .brand-text{font-size:15px;max-width:170px}
  .header-cta{display:none}
  .article-title{font-size:24px}
  .article-summary{font-size:14.5px}
  .meta-pill{font-size:12px;padding:5px 11px}
  .card{padding:20px}
  .stat-card{padding:18px}
  .btn{width:100%}
  .header-actions .btn{width:auto}
  .hero-actions .btn,.submit-form .btn{width:100%}
}

/* roulang page: category3 */
:root{
 --brand:#0f6b60;
 --brand-dark:#0a5148;
 --brand-light:#17907f;
 --brand-soft:#e8f5f2;
 --accent:#d98324;
 --accent-soft:#fdf2e3;
 --ink:#0f1b24;
 --ink-soft:#33414f;
 --muted:#63727f;
 --line:#e2e9e7;
 --bg:#f6f9f8;
 --surface:#ffffff;
 --radius-lg:16px;
 --radius:12px;
 --radius-sm:8px;
 --shadow-sm:0 1px 2px rgba(13,42,38,.05),0 2px 10px rgba(13,42,38,.04);
 --shadow-md:0 12px 32px rgba(13,42,38,.10);
 --shadow-lg:0 24px 56px rgba(13,42,38,.16);
 --maxw:1180px;
}
*,*::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:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
 font-size:15px;line-height:1.78;-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;transition:color .18s ease}
img{max-width:100%;display:block;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
:focus-visible{outline:2px solid var(--brand-light);outline-offset:3px;border-radius:4px}
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:20px}
/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.94);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line);transition:box-shadow .22s ease}
.site-header.is-stuck{box-shadow:0 8px 28px rgba(13,42,38,.09)}
.header-top{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:11px;background:linear-gradient(140deg,var(--brand-light),var(--brand-dark));color:#fff;font-size:16px;font-weight:800;box-shadow:0 6px 16px rgba(15,107,96,.28);flex:none}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.header-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center;color:var(--ink-soft);transition:.18s}
.nav-toggle:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand-light)}
.icon-nav{display:flex;align-items:center;gap:8px;padding:6px 0 10px;overflow-x:auto;scrollbar-width:none}
.icon-nav::-webkit-scrollbar{display:none}
.icon-nav-item{display:inline-flex;align-items:center;gap:8px;padding:8px 15px;border-radius:999px;font-size:14px;font-weight:600;color:var(--muted);border:1px solid transparent;white-space:nowrap;transition:background .18s ease,color .18s ease,border-color .18s ease}
.icon-nav-item svg{width:16px;height:16px;flex:none}
.icon-nav-item:hover{background:var(--brand-soft);color:var(--brand-dark)}
.icon-nav-item.active{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(15,107,96,.26)}
/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;min-height:44px;border-radius:10px;font-size:15px;font-weight:700;border:1px solid transparent;transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease}
.btn-sm{padding:8px 16px;min-height:38px;font-size:14px;border-radius:9px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(15,107,96,.24)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 14px 30px rgba(15,107,96,.30)}
.btn-outline{border-color:rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.06)}
.btn-outline:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}
.btn-ghost{border-color:var(--line);color:var(--ink-soft);background:#fff}
.btn-ghost:hover{border-color:var(--brand-light);color:var(--brand-dark);transform:translateY(-2px)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 24px rgba(217,131,36,.28)}
.btn-accent:hover{background:#c2741d;transform:translateY(-2px)}
/* ---------- category hero ---------- */
.hero-slant{position:relative;isolation:isolate;overflow:hidden;color:#fff;background:#082e29 url('/assets/images/backpic/back-5.webp') center/cover no-repeat}
.hero-slant::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(112deg,rgba(6,38,33,.97) 0%,rgba(7,45,39,.93) 48%,rgba(10,62,53,.74) 100%)}
.hero-slant::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:88px;z-index:3;background:linear-gradient(to bottom right,transparent 49.5%,var(--bg) 50%)}
.hero-inner{display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:center;padding-block:64px 104px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.20);font-size:13px;letter-spacing:.04em;color:#d8f3ec}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:#63d6c1;display:block}
.hero-slant h1{font-size:clamp(28px,3.4vw,42px);line-height:1.26;margin:18px 0 16px;font-weight:800;letter-spacing:-.01em}
.hero-lead{color:#cfe7e2;font-size:15.5px;line-height:1.9;max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tags li{padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);font-size:13px;color:#d5ece7}
.hero-panel{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:18px;padding:22px;box-shadow:var(--shadow-lg);backdrop-filter:blur(4px)}
.hero-panel h2{font-size:14px;letter-spacing:.06em;color:#9ecfc6;font-weight:700;margin-bottom:14px}
.prob-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.16);font-size:14px;color:#dcefeb}
.prob-row:last-child{border-bottom:0;padding-bottom:0}
.prob-row b{color:#fff;font-size:15px;font-variant-numeric:tabular-nums}
.prob-bar{height:6px;border-radius:4px;background:rgba(255,255,255,.16);overflow:hidden;margin-top:8px}
.prob-bar span{display:block;height:100%;border-radius:4px;background:linear-gradient(90deg,#63d6c1,#17907f)}
.prob-item{padding:10px 0}
.prob-item p{font-size:13px;color:#c3e2dc;display:flex;justify-content:space-between;gap:10px}
/* ---------- sections ---------- */
.section{padding:70px 0}
.section--tight{padding:48px 0}
.section--alt{background:#eef4f2}
.section--white{background:#fff}
.section--dark{background:#0a2b26;color:#d7ece8}
.section--dark h2,.section--dark h3{color:#fff}
.section-head{max-width:780px;margin-bottom:34px}
.section-head .rule{width:44px;height:3px;border-radius:2px;background:var(--accent);margin-bottom:16px}
.section-head h2{font-size:clamp(22px,2.3vw,29px);margin-bottom:12px;letter-spacing:-.01em}
.section-head p{color:var(--muted);font-size:15px;line-height:1.88}
.section--dark .section-head p{color:#a9ccc5}
/* ---------- grids & cards ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe3dd}
.card h3{font-size:17px;margin-bottom:10px;color:var(--ink)}
.card p{color:var(--muted);font-size:14.5px;line-height:1.82}
.card-icon{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:var(--brand-soft);color:var(--brand-dark);margin-bottom:16px}
.card-icon svg{width:22px;height:22px}
.tag{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;font-size:12.5px;font-weight:600;background:var(--brand-soft);color:var(--brand-dark)}
.tag-accent{background:var(--accent-soft);color:#a9661a}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
/* ---------- metrics ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.metric{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease}
.metric:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.metric .num{font-size:32px;font-weight:800;color:var(--brand);line-height:1.1;font-variant-numeric:tabular-nums}
.metric .num small{font-size:14px;font-weight:700;margin-left:4px;color:var(--ink-soft)}
.metric .label{font-size:14px;font-weight:700;margin-top:6px}
.metric .desc{font-size:13px;color:var(--muted);line-height:1.7;margin-top:6px}
/* ---------- compare ---------- */
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.compare-col{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow-sm)}
.compare-col h3{font-size:17px;display:flex;align-items:center;gap:10px;margin-bottom:16px}
.compare-col h3 span.dot{width:10px;height:10px;border-radius:50%;background:#b9c6c2}
.compare-col--accent{border-color:#bfe0d8;background:linear-gradient(180deg,#f3fbf8,#ffffff)}
.compare-col--accent h3 span.dot{background:var(--brand)}
.compare-col li{position:relative;padding-left:26px;font-size:14.5px;color:var(--ink-soft);line-height:1.8;margin-bottom:12px}
.compare-col li:last-child{margin-bottom:0}
.compare-col li::before{content:"";position:absolute;left:0;top:9px;width:14px;height:14px;border-radius:50%;border:1.5px solid #c6d3cf}
.compare-col--accent li::before{border-color:var(--brand);background:var(--brand-soft)}
.compare-col--accent li::after{content:"";position:absolute;left:4px;top:13px;width:6px;height:3px;border-left:1.6px solid var(--brand);border-bottom:1.6px solid var(--brand);transform:rotate(-45deg)}
/* ---------- timeline ---------- */
.timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;counter-reset:step}
.timeline li{position:relative;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-lg);padding:24px 20px;transition:transform .2s ease,border-color .2s ease,background .2s ease}
.timeline li:hover{transform:translateY(-4px);border-color:rgba(99,214,193,.6);background:rgba(255,255,255,.10)}
.timeline li b{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:9px;background:rgba(99,214,193,.18);color:#8fe6d5;font-size:14px;margin-bottom:14px}
.timeline li h3{font-size:16px;margin-bottom:8px;color:#fff}
.timeline li p{font-size:13.5px;line-height:1.78;color:#a9ccc5}
/* ---------- news list ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe3dd}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-soft)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body h3{font-size:16px;line-height:1.55;color:var(--ink)}
.news-body p{font-size:13.5px;color:var(--muted);line-height:1.75}
.news-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:#8798a3;margin-top:auto}
.news-empty{background:#fff;border:1px dashed var(--line);border-radius:var(--radius-lg);padding:40px 24px;text-align:center;color:var(--muted);font-size:14.5px}
/* ---------- assurance ---------- */
.assure{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.assure-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-sm)}
.assure-item h3{font-size:15.5px;display:flex;align-items:center;gap:8px;margin-bottom:8px}
.assure-item h3 svg{width:18px;height:18px;color:var(--brand)}
.assure-item p{font-size:13.5px;color:var(--muted);line-height:1.75}
/* ---------- quick answers ---------- */
.quick{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.quick-item{border-left:3px solid var(--accent);background:#fff;border-radius:0 var(--radius) var(--radius) 0;padding:20px 22px;box-shadow:var(--shadow-sm)}
.quick-item h3{font-size:15.5px;margin-bottom:8px}
.quick-item p{font-size:13.5px;color:var(--muted);line-height:1.78}
/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:0;box-shadow:var(--shadow-sm);transition:border-color .2s ease,box-shadow .2s ease}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;font-size:15.5px;font-weight:700;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"";width:10px;height:10px;flex:none;border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);transform:rotate(45deg);transition:transform .2s ease;margin-right:4px}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-item[open]{border-color:#bfe0d8;box-shadow:var(--shadow-md)}
.faq-body{padding:0 22px 20px;color:var(--muted);font-size:14.5px;line-height:1.85}
/* ---------- form ---------- */
.form-wrap{display:grid;grid-template-columns:.95fr 1.05fr;gap:40px;align-items:start}
.form-aside h2{font-size:clamp(22px,2.3vw,28px);margin-bottom:14px}
.form-aside p{color:var(--muted);font-size:14.5px;line-height:1.88;margin-bottom:18px}
.form-aside ul{display:grid;gap:10px}
.form-aside li{position:relative;padding-left:24px;font-size:14px;color:var(--ink-soft);line-height:1.75}
.form-aside li::before{content:"";position:absolute;left:0;top:8px;width:12px;height:12px;border-radius:4px;background:var(--brand-soft);border:1.5px solid var(--brand)}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-md)}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field--full{grid-column:1 / -1}
.field label{font-size:13.5px;font-weight:700;color:var(--ink-soft)}
.field input,.field select,.field textarea{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:14.5px;transition:border-color .18s ease,box-shadow .18s ease}
.field textarea{min-height:118px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand-light);box-shadow:0 0 0 3px rgba(23,144,127,.14)}
.form-note{font-size:12.5px;color:#8798a3;margin-top:14px;line-height:1.7}
.form-actions{margin-top:20px;display:flex;flex-wrap:wrap;align-items:center;gap:14px}
/* ---------- footer ---------- */
.site-footer{background:#0a2b26;color:#c8e0db;padding-top:54px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:40px;padding-bottom:38px;border-top:1px solid rgba(255,255,255,.12);padding-top:38px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand strong{font-size:16.5px;color:#fff}
.footer-desc{font-size:13.5px;line-height:1.85;color:#9dbfb9;max-width:420px}
.footer-col h3{font-size:14.5px;color:#fff;margin-bottom:14px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:9px}
.footer-col a{font-size:13.5px;color:#a9ccc5;transition:color .18s ease}
.footer-col a:hover{color:#fff}
.footer-col span{font-size:13.5px;color:#7fa8a1}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding:18px 0 24px;border-top:1px solid rgba(255,255,255,.12)}
.footer-bottom p{font-size:12.5px;color:#87aba4;margin:0}
/* ---------- responsive ---------- */
@media (max-width:1024px){
 .hero-inner{grid-template-columns:1fr;gap:36px;padding-block:52px 92px}
 .grid-4,.metrics,.assure,.timeline{grid-template-columns:repeat(2,minmax(0,1fr))}
 .news-grid,.grid-3,.quick{grid-template-columns:repeat(2,minmax(0,1fr))}
 .form-wrap{grid-template-columns:1fr;gap:28px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
 .nav-toggle{display:inline-flex}
 .icon-nav{display:none;flex-direction:column;align-items:stretch;gap:6px;padding:0 0 14px}
 .icon-nav.is-open{display:flex}
 .icon-nav-item{justify-content:flex-start;padding:11px 14px;border-radius:12px;min-height:44px}
 .header-cta{display:none}
 .section{padding:54px 0}
 .section--tight{padding:40px 0}
 .hero-slant::after{height:64px}
 .grid-2,.grid-3,.grid-4,.metrics,.assure,.timeline,.news-grid,.quick,.compare{grid-template-columns:1fr}
 .form-grid{grid-template-columns:1fr}
 .footer-grid{grid-template-columns:1fr}
 .hero-slant h1{font-size:26px}
}
@media (max-width:520px){
 .container{padding-inline:16px}
 .brand-text{font-size:15px}
 .hero-inner{padding-block:38px 76px}
 .card,.form-card,.compare-col{padding:20px}
 .metric .num{font-size:27px}
 .btn{width:100%}
 .hero-actions .btn{width:100%}
 .footer-bottom{flex-direction:column}
}

/* roulang page: category2 */
:root{
  --brand:#0f6b60;
  --brand-dark:#0a5148;
  --brand-light:#17907f;
  --brand-soft:#e8f5f2;
  --accent:#d98324;
  --accent-soft:#fdf2e3;
  --gold:#d8a94a;
  --gold-light:#e9c877;
  --gold-dark:#b9862c;
  --ink:#0f1b24;
  --ink-soft:#33414f;
  --muted:#63727f;
  --line:#e2e9e7;
  --bg:#f6f9f8;
  --surface:#ffffff;
  --radius-lg:16px;
  --radius:12px;
  --radius-sm:8px;
  --shadow-sm:0 1px 2px rgba(13,42,38,.05),0 2px 10px rgba(13,42,38,.04);
  --shadow-md:0 12px 32px rgba(13,42,38,.10);
  --shadow-lg:0 24px 56px rgba(13,42,38,.16);
  --maxw:1180px;
}
*,*::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:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:15px;line-height:1.78;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:.005em;color:var(--ink);line-height:1.32}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .18s ease}
img{max-width:100%;display:block;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
:focus-visible{outline:3px solid rgba(23,144,127,.42);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:20px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.95);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line);transition:box-shadow .22s ease}
.site-header.is-stuck{box-shadow:0 8px 28px rgba(13,42,38,.09)}
.header-top{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:11px;background:linear-gradient(140deg,var(--brand-light),var(--brand-dark));color:#fff;font-size:16px;font-weight:800;box-shadow:0 6px 16px rgba(15,107,96,.28);flex:none}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.header-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center;color:var(--ink-soft);transition:.18s}
.nav-toggle:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand-light)}
.icon-nav{display:flex;align-items:center;gap:8px;padding:6px 0 10px;overflow-x:auto;scrollbar-width:none}
.icon-nav::-webkit-scrollbar{display:none}
.icon-nav-item{display:inline-flex;align-items:center;gap:8px;padding:8px 15px;border-radius:999px;font-size:14px;font-weight:600;color:var(--muted);border:1px solid transparent;white-space:nowrap;transition:background .18s ease,color .18s ease,border-color .18s ease}
.icon-nav-item svg{width:16px;height:16px;flex:none}
.icon-nav-item:hover{background:var(--brand-soft);color:var(--brand-dark)}
.icon-nav-item.active{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(15,107,96,.26)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;min-height:44px;border-radius:10px;font-size:15px;font-weight:700;border:1px solid transparent;transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease}
.btn-sm{padding:8px 16px;min-height:38px;font-size:14px;border-radius:9px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(15,107,96,.24)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 14px 30px rgba(15,107,96,.30)}
.btn-outline{border-color:rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.06)}
.btn-outline:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}
.btn-ghost{border-color:var(--line);color:var(--ink-soft);background:#fff}
.btn-ghost:hover{border-color:var(--brand-light);color:var(--brand-dark);transform:translateY(-2px)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 24px rgba(217,131,36,.28)}
.btn-accent:hover{background:#c2741d;transform:translateY(-2px)}
.btn-gold{background:linear-gradient(150deg,var(--gold-light),var(--gold-dark));color:#2a1e06;box-shadow:0 12px 26px rgba(216,169,74,.32)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(216,169,74,.42)}

/* ---------- hero ---------- */
.hero-page{position:relative;isolation:isolate;color:#fff;background:#07130f url('/assets/images/backpic/back-5.webp') center/cover no-repeat}
.hero-page::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(112deg,rgba(5,14,12,.97) 0%,rgba(9,26,22,.93) 48%,rgba(11,34,29,.74) 100%)}
.hero-page-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;padding-block:62px 74px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(216,169,74,.14);border:1px solid rgba(216,169,74,.42);font-size:13px;letter-spacing:.05em;color:#eed9a8}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--gold-light);display:block}
.hero-page h1{font-size:clamp(26px,3.4vw,40px);color:#fff;margin:18px 0 16px;line-height:1.28}
.hero-lead{color:#cde3dd;font-size:15.5px;line-height:1.9;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tags li{padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);font-size:13px;color:#d6ece7}
.rank-panel{background:linear-gradient(165deg,rgba(216,169,74,.15),rgba(255,255,255,.03));border:1px solid rgba(216,169,74,.36);border-radius:18px;padding:22px;box-shadow:0 26px 60px rgba(0,0,0,.42)}
.rank-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid rgba(216,169,74,.24)}
.rank-head strong{font-size:15px;color:#fff}
.rank-head span{font-size:12px;color:#cbb98a;letter-spacing:.08em}
.rank-row{display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed rgba(255,255,255,.12)}
.rank-row:last-of-type{border-bottom:0}
.rank-badge{flex:none;display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:linear-gradient(150deg,var(--gold-light),var(--gold-dark));color:#2a1e06;font-weight:800;font-size:14px;box-shadow:0 8px 18px rgba(216,169,74,.28)}
.rank-row b{display:block;font-size:14.5px;color:#fff;margin-bottom:4px}
.rank-row p{font-size:13.5px;color:#b7d2cc;line-height:1.7}
.rank-foot{margin-top:14px;padding-top:14px;border-top:1px solid rgba(216,169,74,.24);font-size:13px;color:#c9bf9d}

/* ---------- sections ---------- */
.section{padding:72px 0}
.section--tight{padding:52px 0}
.section--alt{background:#eef4f2}
.section--white{background:#fff}
.section--dark{background:#0a2b26;color:#d7ece8;position:relative;isolation:isolate;background-image:linear-gradient(115deg,rgba(8,33,29,.97),rgba(10,43,38,.92)),url('/assets/images/backpic/back-7.webp');background-size:cover;background-position:center}
.section-head{max-width:740px;margin-bottom:38px}
.section-head .rule{width:44px;height:3px;border-radius:2px;background:var(--accent);margin-bottom:16px}
.section-head h2{font-size:clamp(21px,2.3vw,28px);margin-bottom:12px}
.section-head p{color:var(--muted);font-size:15px;line-height:1.85}
.section--dark .section-head p{color:#a9ccc5}
.split{display:grid;grid-template-columns:.88fr 1.12fr;gap:44px;align-items:start}
.sticky-side{position:sticky;top:96px}

/* ---------- stats ---------- */
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:22px 22px 20px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.stat:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#cbe3dd}
.stat b{display:block;font-size:clamp(26px,3vw,34px);line-height:1.15;color:var(--brand-dark);font-weight:800}
.stat b em{font-style:normal;font-size:15px;margin-left:4px;color:var(--muted);font-weight:700}
.stat span{display:block;margin-top:8px;font-size:14px;font-weight:700;color:var(--ink)}
.stat p{margin-top:6px;font-size:13.5px;color:var(--muted);line-height:1.7}

/* ---------- steps ---------- */
.steps{display:grid;gap:16px;counter-reset:step}
.step{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px 22px 20px 68px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#cbe3dd}
.step::before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;left:20px;top:20px;width:32px;height:32px;border-radius:10px;display:grid;place-items:center;font-size:13px;font-weight:800;color:#fff;background:var(--brand);box-shadow:0 8px 18px rgba(15,107,96,.24)}
.step b{display:block;font-size:15.5px;margin-bottom:6px}
.step p{font-size:14.5px;color:var(--ink-soft);line-height:1.8}

/* ---------- pattern matrix ---------- */
.matrix{display:grid;grid-template-columns:.92fr 1.08fr;gap:32px;align-items:start}
.figure{border-radius:16px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-md);background:#fff}
.figure img{width:100%;aspect-ratio:16/11;object-fit:cover}
.figure figcaption{padding:14px 18px;font-size:13px;color:var(--muted);line-height:1.7;background:#fff;border-top:1px solid var(--line)}
.pattern-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.pattern-card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.pattern-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#cbe3dd}
.pattern-card h3{font-size:15.5px;margin-bottom:7px}
.pattern-card p{font-size:13.8px;color:var(--muted);line-height:1.78}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.tag{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.02em}
.tag-soft{background:var(--brand-soft);color:var(--brand-dark)}
.tag-gold{background:#fbf1dc;color:#8a6218}
.tag-line{border:1px solid var(--line);color:var(--muted);background:#fff}

/* ---------- table ---------- */
.table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-sm)}
table{width:100%;border-collapse:collapse;min-width:680px}
th,td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line);font-size:14.5px;vertical-align:top}
th{background:#f1f6f4;font-weight:800;color:var(--ink);white-space:nowrap;font-size:13.5px;letter-spacing:.02em}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:#f8fbfa}
td.hl{color:var(--brand-dark);font-weight:700}
.table-note{margin-top:14px;font-size:13.5px;color:var(--muted);line-height:1.8}

/* ---------- posts ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.post-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cbe3dd}
.post-thumb{display:block;overflow:hidden;background:#eef4f2}
.post-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12.5px;color:var(--muted)}
.post-body h3{font-size:15.5px;line-height:1.55}
.post-body h3 a:hover{color:var(--brand-dark)}
.post-body p{font-size:13.8px;color:var(--muted);line-height:1.78;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.empty-note{padding:26px;border:1px dashed var(--line);border-radius:14px;background:#fff;color:var(--muted);font-size:14px}

/* ---------- guard ---------- */
.guard-list{display:grid;gap:18px}
.guard-item{display:flex;gap:16px;padding:20px;border-radius:14px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);transition:background .2s ease,border-color .2s ease,transform .2s ease}
.guard-item:hover{background:rgba(255,255,255,.09);border-color:rgba(216,169,74,.42);transform:translateY(-3px)}
.guard-icon{flex:none;width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:rgba(216,169,74,.16);border:1px solid rgba(216,169,74,.4);color:var(--gold-light)}
.guard-icon svg{width:20px;height:20px}
.guard-item b{display:block;color:#fff;font-size:15px;margin-bottom:6px}
.guard-item p{color:#a9ccc5;font-size:13.8px;line-height:1.8}

/* ---------- faq ---------- */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;box-shadow:var(--shadow-sm);transition:border-color .2s ease,box-shadow .2s ease}
.faq-item:hover{border-color:#cbe3dd;box-shadow:var(--shadow-md)}
.faq-item summary{list-style:none;cursor:pointer;padding:16px 20px;font-weight:700;font-size:14.8px;display:flex;justify-content:space-between;align-items:center;gap:14px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--brand);font-size:20px;font-weight:800;line-height:1;flex:none}
.faq-item[open] summary::after{content:"–"}
.faq-item[open] summary{color:var(--brand-dark)}
.faq-body{padding:0 20px 18px;color:var(--muted);font-size:14.2px;line-height:1.85}

/* ---------- form ---------- */
.form-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px;box-shadow:var(--shadow-md)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:700;margin-bottom:6px;color:var(--ink-soft)}
.field input,.field select,.field textarea{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:10px;background:#fbfdfc;font-size:14.5px;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand-light);background:#fff;box-shadow:0 0 0 3px rgba(23,144,127,.14)}
.field textarea{min-height:110px;resize:vertical}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-note{font-size:12.8px;color:var(--muted);line-height:1.7;margin-top:12px}
.form-msg{display:none;margin-top:14px;padding:12px 16px;border-radius:10px;background:var(--brand-soft);border:1px solid #c6e5de;color:var(--brand-dark);font-size:13.8px;font-weight:600}
.form-msg.is-visible{display:block}
.check-list{display:grid;gap:12px;margin-top:22px}
.check-list li{display:flex;gap:10px;font-size:14px;color:var(--ink-soft);line-height:1.8}
.check-list svg{flex:none;width:18px;height:18px;margin-top:5px;color:var(--brand)}

/* ---------- footer ---------- */
.site-footer{background:#08211d;color:#b9d3ce;padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand strong{color:#fff;font-size:16px}
.footer-desc{font-size:14px;line-height:1.85;color:#9dbcb6;max-width:430px}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.05em}
.footer-col ul{display:grid;gap:9px}
.footer-col a,.footer-col span{color:#a8c7c1;font-size:14px}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);padding-block:18px;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:#87a8a2}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-page-grid{grid-template-columns:1fr;gap:34px;padding-block:52px 60px}
  .split{grid-template-columns:1fr;gap:30px}
  .sticky-side{position:static}
  .matrix{grid-template-columns:1fr;gap:26px}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:58px 0}
}
@media (max-width:768px){
  .nav-toggle{display:flex}
  .icon-nav{display:none;padding:4px 0 14px}
  .icon-nav.is-open{display:flex;flex-direction:column;align-items:stretch;gap:6px}
  .icon-nav-item{justify-content:flex-start;border-radius:12px;padding:11px 14px;min-height:44px}
  .header-cta{display:none}
  .hero-page h1{font-size:clamp(23px,5.4vw,30px)}
  .pattern-grid{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding-inline:16px}
  .stats-grid,.post-grid,.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .stat,.step,.pattern-card,.post-body,.form-card{padding-left:16px;padding-right:16px}
  .step{padding-left:62px}
  .step::before{left:16px}
  .hero-actions .btn{width:100%}
  .section{padding:48px 0}
  .section--tight{padding:40px 0}
}