/* roulang page: index */
:root{
  --ink:#0c141d;
  --ink-2:#152130;
  --text:#1f2b38;
  --muted:#65757f;
  --line:#e4e9ee;
  --bg:#ffffff;
  --bg-soft:#f6f8fa;
  --accent:#b8912f;
  --accent-2:#96771f;
  --accent-soft:#f7f1e1;
  --radius-s:8px;
  --radius:14px;
  --radius-l:22px;
  --shadow-1:0 1px 2px rgba(12,20,29,.06);
  --shadow-2:0 18px 44px -22px rgba(12,20,29,.34);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{line-height:1.3;font-weight:700;color:var(--ink);margin:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:22px;height:72px;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(140deg,#1b2836,#0a121a);color:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;box-shadow:inset 0 0 0 1px rgba(184,145,47,.28)}
.brand-name{display:flex;flex-direction:column;line-height:1.22}
.brand-name strong{font-size:15px;color:var(--ink);letter-spacing:.02em}
.brand-name em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.12em}
.header-search{position:relative;display:flex;align-items:center;flex:1 1 200px;max-width:300px}
.header-search input{width:100%;height:38px;padding:0 14px 0 34px;border:1px solid var(--line);border-radius:999px;background:var(--bg-soft);font-size:13px;color:var(--text);outline:none;transition:border-color .2s,background .2s,box-shadow .2s}
.header-search input::placeholder{color:#9aa8b3}
.header-search input:focus{border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px rgba(184,145,47,.14)}
.header-search svg{position:absolute;left:12px;width:15px;height:15px;color:var(--muted);pointer-events:none}
.header-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{position:relative;padding:8px 12px;font-size:14px;color:var(--text);border-radius:8px;transition:color .2s,background .2s;white-space:nowrap}
.nav-link:hover{color:var(--ink);background:var(--bg-soft)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;background:var(--accent);border-radius:2px}
.header-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.lang-pill{font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:3px 10px;letter-spacing:.06em}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:999px;font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;cursor:pointer}
.btn-sm{padding:8px 16px;font-size:13px}
.btn-primary{background:var(--accent);color:#131c26}
.btn-primary:hover{background:#cda63f;transform:translateY(-1px);box-shadow:0 12px 24px -14px rgba(184,145,47,.95)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{border-color:rgba(255,255,255,.26);color:#f2f6fa;background:rgba(255,255,255,.02)}
.btn-outline:hover{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.45)}
.btn-ghost{border-color:var(--line);color:var(--ink);background:#fff}
.btn-ghost:hover{border-color:#cfd8e0;box-shadow:var(--shadow-1);transform:translateY(-1px)}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;background:radial-gradient(130% 150% at 12% 0%,#1b2836 0%,#0c141d 52%,#070d13 100%);color:#e8eef4}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:64px 64px}
.hero-inner{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:70px 24px 62px}
.hero-kicker{display:inline-flex;align-items:center;gap:9px;font-size:12px;letter-spacing:.2em;color:#93a6b8;border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:5px 14px;margin-bottom:22px}
.hero-kicker i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block}
.hero-title{font-size:clamp(27px,3.5vw,43px);font-weight:800;color:#fff;letter-spacing:-.01em;line-height:1.26;max-width:900px}
.hero-pain{display:flex;gap:14px;margin:24px 0 20px;font-size:clamp(17px,1.9vw,22px);font-weight:600;color:var(--accent);letter-spacing:.01em;max-width:820px}
.hero-pain::before{content:"";width:2px;flex:0 0 2px;align-self:stretch;background:linear-gradient(180deg,var(--accent),rgba(184,145,47,0))}
.hero-lead{max-width:780px;font-size:15.5px;line-height:1.95;color:#a6b6c6}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-demo{margin-top:44px;border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-l);background:rgba(255,255,255,.045);padding:22px}
.demo-head{display:flex;align-items:center;gap:9px;font-size:12px;letter-spacing:.16em;color:#8fa2b5;margin-bottom:18px}
.demo-head .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(184,145,47,.16)}
.demo-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.demo-cell{min-width:0;padding:16px 18px;border-radius:12px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08)}
.demo-cell span{display:block;font-size:12px;letter-spacing:.08em;color:#8fa2b5;margin-bottom:6px}
.demo-cell strong{font-size:18px;font-weight:700;color:#fff;letter-spacing:-.01em}
.demo-line{display:flex;align-items:center;gap:10px;margin-top:20px;flex-wrap:wrap;font-size:13px;color:#9db0c1}
.demo-line i{flex:1 1 24px;height:1px;min-width:18px;background:linear-gradient(90deg,rgba(184,145,47,.85),rgba(184,145,47,.12))}

/* ===== Doc layout ===== */
.doc-layout{display:grid;grid-template-columns:236px minmax(0,1fr);gap:52px;padding-top:8px;padding-bottom:24px}
.doc-side{position:sticky;top:96px;align-self:start;padding:40px 0 24px}
.doc-side-title{font-size:11px;letter-spacing:.18em;color:#93a2ad;margin-bottom:12px}
.doc-side-list{display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line)}
.doc-side-list a{display:block;padding:8px 14px;font-size:13.5px;color:var(--muted);border-left:2px solid transparent;margin-left:-1px;transition:color .2s,border-color .2s,background .2s}
.doc-side-list a:hover{color:var(--ink);border-left-color:var(--accent);background:var(--bg-soft)}
.doc-side-foot{margin-top:22px;padding:16px;border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-soft)}
.doc-side-foot p{font-size:12.5px;line-height:1.75;color:var(--muted);margin-bottom:12px}
.doc-main{min-width:0}

/* ===== Sections ===== */
.section{padding:56px 0}
.section:first-child{padding-top:40px}
.section + .section{border-top:1px solid var(--line)}
.section-head{max-width:780px;margin-bottom:30px}
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:11.5px;letter-spacing:.18em;color:var(--accent-2);font-weight:700;margin-bottom:12px}
.kicker::before{content:"";width:20px;height:1px;background:var(--accent)}
.section-head h2{font-size:clamp(21px,2.5vw,29px);letter-spacing:-.01em;margin-bottom:12px}
.section-head p{font-size:15px;line-height:1.9;color:var(--muted)}

/* ===== Stats ===== */
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.stat-card{min-width:0;border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:22px 20px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#d6dee6}
.stat-label{font-size:12px;letter-spacing:.1em;color:#93a2ad;margin-bottom:10px}
.stat-value{font-size:21px;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.stat-desc{margin-top:8px;font-size:13px;line-height:1.7;color:var(--muted)}

/* ===== Cards ===== */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.card-grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.card-grid.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.site-card{min-width:0;border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:24px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.site-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#d6dee6}
.site-card h3{font-size:16.5px;margin-bottom:9px}
.site-card p{font-size:14px;line-height:1.82;color:var(--muted)}
.card-idx{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--accent);margin-bottom:12px}
.card-tag{display:inline-block;font-size:12px;color:var(--accent-2);background:var(--accent-soft);border-radius:999px;padding:3px 10px;margin-bottom:10px}

/* ===== Compare ===== */
.compare{border:1px solid var(--line);border-radius:var(--radius-l);background:#fff;overflow-x:auto}
.compare table{width:100%;min-width:600px;border-collapse:collapse;font-size:14px}
.compare th,.compare td{padding:15px 18px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
.compare thead th{background:var(--bg-soft);font-size:12.5px;letter-spacing:.08em;color:var(--muted);font-weight:600}
.compare tbody tr:last-child td{border-bottom:0}
.compare tbody td:first-child{font-weight:600;color:var(--ink);width:24%}
.compare .col-hi{background:var(--accent-soft);color:var(--ink);font-weight:600}

/* ===== Steps ===== */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;counter-reset:step}
.step{min-width:0;counter-increment:step;border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:24px 20px}
.step::before{content:"0" counter(step);display:block;font-size:12.5px;font-weight:800;letter-spacing:.12em;color:var(--accent);margin-bottom:12px}
.step h3{font-size:15.5px;margin-bottom:8px}
.step p{font-size:13.5px;line-height:1.75;color:var(--muted)}

/* ===== Myth list ===== */
.myth-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.myth{min-width:0;display:flex;gap:14px;border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:var(--radius-s);background:#fff;padding:20px 22px}
.myth h3{font-size:15px;margin-bottom:7px}
.myth p{font-size:13.5px;line-height:1.78;color:var(--muted)}

/* ===== Topic entry ===== */
.topic-panel{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:28px;align-items:center;border:1px solid var(--line);border-radius:var(--radius-l);background:linear-gradient(180deg,#fbfcfd,#f5f8fa);padding:34px}
.topic-panel h2{font-size:clamp(20px,2.2vw,26px);margin-bottom:12px}
.topic-panel p{font-size:14.5px;line-height:1.9;color:var(--muted)}
.topic-card{display:block;border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:26px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.topic-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#d6dee6}
.topic-card strong{display:block;font-size:17px;color:var(--ink);margin-bottom:8px}
.topic-card span{font-size:13.5px;line-height:1.78;color:var(--muted);display:block}
.topic-card em{font-style:normal;display:inline-block;margin-top:14px;font-size:13.5px;font-weight:600;color:var(--accent-2)}

/* ===== Download ===== */
.download-panel{position:relative;overflow:hidden;border-radius:24px;padding:46px 40px;background:linear-gradient(135deg,#111c28,#090f16);color:#e6ecf3}
.download-panel::after{content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(184,145,47,.22),transparent 68%)}
.download-panel h2{position:relative;z-index:2;color:#fff;font-size:clamp(21px,2.5vw,28px);margin-bottom:12px}
.download-panel p{position:relative;z-index:2;font-size:14.5px;line-height:1.9;color:#9fb0c1;max-width:680px}
.dl-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:28px}
.dl-btn{min-width:0;display:flex;flex-direction:column;gap:4px;padding:18px 20px;border-radius:14px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.05);color:#fff;transition:background .22s ease,border-color .22s ease,transform .22s ease}
.dl-btn strong{font-size:15.5px;font-weight:700}
.dl-btn span{font-size:12px;color:#8fa2b5;letter-spacing:.04em}
.dl-btn:hover{background:rgba(184,145,47,.16);border-color:rgba(184,145,47,.55);transform:translateY(-2px)}

/* ===== News ===== */
.news-layout{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,.85fr);gap:26px}
.news-list{display:grid;gap:14px}
.news-item{display:block;border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:22px 24px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#d6dee6}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:10px}
.tag{display:inline-block;font-size:12px;color:var(--accent-2);background:var(--accent-soft);border-radius:999px;padding:2px 10px}
.news-date{font-size:12.5px;color:#93a2ad}
.news-item h3{font-size:16px;line-height:1.55;margin-bottom:8px;transition:color .2s}
.news-item:hover h3{color:var(--accent-2)}
.news-item p{font-size:13.5px;line-height:1.8;color:var(--muted)}
.news-aside{border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-soft);padding:24px;align-self:start}
.news-aside h3{font-size:14px;letter-spacing:.08em;color:var(--ink);margin-bottom:14px}
.news-aside ul{display:grid;gap:12px}
.news-aside a{display:block;font-size:13.5px;line-height:1.7;color:var(--text);padding-bottom:12px;border-bottom:1px dashed #dde4ea;transition:color .2s}
.news-aside li:last-child a{border-bottom:0;padding-bottom:0}
.news-aside a:hover{color:var(--accent-2)}
.empty-tip{font-size:13.5px;color:var(--muted);padding:18px 0}

/* ===== Quick answers ===== */
.quick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.quick-card{min-width:0;border-radius:var(--radius);background:var(--bg-soft);border:1px solid var(--line);padding:22px}
.quick-card strong{display:block;font-size:14.5px;color:var(--ink);margin-bottom:8px}
.quick-card span{font-size:13.5px;line-height:1.8;color:var(--muted)}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:12px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:2px 22px;transition:border-color .2s,box-shadow .2s}
.faq-item:hover{border-color:#d6dee6}
.faq-item[open]{border-color:#d6dee6;box-shadow:var(--shadow-1)}
.faq-item summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:17px 0;font-size:15.5px;font-weight:600;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:0 0 auto;font-size:19px;line-height:1;color:var(--accent)}
.faq-item[open] summary::after{content:"−"}
.faq-body{padding:0 0 18px;font-size:14px;line-height:1.88;color:var(--muted)}

/* ===== Join form ===== */
.join-panel{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:38px;border:1px solid var(--line);border-radius:24px;background:linear-gradient(180deg,#fbfcfd,#f4f7fa);padding:38px}
.join-panel h2{font-size:clamp(20px,2.2vw,26px);margin-bottom:12px}
.join-panel .join-text{font-size:14.5px;line-height:1.9;color:var(--muted)}
.join-points{margin-top:22px;display:grid;gap:10px}
.join-points li{display:flex;gap:10px;font-size:13.5px;line-height:1.75;color:var(--muted)}
.join-points li::before{content:"";flex:0 0 6px;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-top:9px}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field label{font-size:12.5px;color:var(--muted);letter-spacing:.02em}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:11px 13px;font-size:14px;font-family:inherit;color:var(--text);background:#fff;outline:none;transition:border-color .2s,box-shadow .2s}
.field textarea{resize:vertical;min-height:88px}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(184,145,47,.14)}
.field.full{grid-column:1/-1}
.form-note{grid-column:1/-1;font-size:12.5px;line-height:1.7;color:#93a2ad}

/* ===== Footer ===== */
.site-footer{background:#0b121a;color:#93a4b6;padding:54px 0 26px;margin-top:28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{width:34px;height:34px;font-size:15px}
.footer-brand strong{color:#e8eef4;font-size:15px}
.footer-desc{font-size:13px;line-height:1.85;color:#7d8fa0;max-width:340px}
.footer-col h3{font-size:12.5px;letter-spacing:.14em;color:#c6d2dc;margin-bottom:14px;font-weight:600}
.footer-col ul{display:grid;gap:9px}
.footer-col a{font-size:13.5px;color:#8598a9;transition:color .2s}
.footer-col a:hover{color:var(--accent)}
.friend-links{margin-top:36px;padding-top:24px;border-top:1px solid rgba(255,255,255,.08)}
.friend-links h3{font-size:12.5px;letter-spacing:.14em;color:#c6d2dc;margin-bottom:14px;font-weight:600}
.friend-links ul{display:flex;flex-wrap:wrap;gap:10px 20px}
.friend-links a{font-size:13.5px;color:#8598a9;transition:color .2s}
.friend-links a:hover{color:var(--accent)}
.footer-bottom{margin-top:28px;padding-top:18px;border-top:1px solid rgba(255,255,255,.08);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:12.5px;color:#6d7f90}

/* ===== Motion ===== */
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  .btn,.site-card,.stat-card,.news-item,.dl-btn,.topic-card{transition:none}
}

/* ===== Responsive ===== */
@media (max-width:1080px){
  .header-search{display:none}
  .doc-layout{grid-template-columns:1fr;gap:0}
  .doc-side{position:static;top:auto;padding:24px 0 0}
  .doc-side-list{flex-direction:row;flex-wrap:nowrap;overflow-x:auto;border-left:0;border-bottom:1px solid var(--line);gap:4px;padding-bottom:6px}
  .doc-side-list a{border-left:0;border-bottom:2px solid transparent;margin-left:0;white-space:nowrap;padding:8px 12px}
  .doc-side-list a:hover{border-left:0;border-bottom-color:var(--accent)}
  .doc-side-foot{display:none}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .card-grid,.card-grid.cols-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-layout{grid-template-columns:1fr}
  .topic-panel{grid-template-columns:1fr;padding:28px}
  .join-panel{grid-template-columns:1fr;padding:28px;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .header-inner{height:auto;flex-wrap:wrap;gap:12px;padding:12px 18px}
  .header-nav{order:3;width:100%;margin-left:0;overflow-x:auto;padding-bottom:2px}
  .header-tools{margin-left:auto}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .hero-inner{padding:52px 18px 46px}
  .demo-grid{grid-template-columns:1fr}
  .section{padding:44px 0}
  .card-grid,.card-grid.cols-2,.card-grid.cols-4{grid-template-columns:1fr}
  .quick-grid{grid-template-columns:1fr}
  .myth-list{grid-template-columns:1fr}
  .dl-grid{grid-template-columns:1fr}
  .download-panel{padding:32px 22px}
  .form-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  .stat-grid,.steps{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .compare th,.compare td{padding:13px 14px}
  .doc-side-list a{font-size:13px}
}

/* roulang page: article */
:root{
  --ink:#0c141d;
  --ink-2:#152130;
  --text:#1f2b38;
  --muted:#65757f;
  --line:#e4e9ee;
  --bg:#ffffff;
  --bg-soft:#f6f8fa;
  --accent:#b8912f;
  --accent-2:#96771f;
  --accent-soft:#f7f1e1;
  --radius-s:8px;
  --radius:14px;
  --radius-l:22px;
  --shadow-1:0 1px 2px rgba(12,20,29,.06);
  --shadow-2:0 18px 44px -22px rgba(12,20,29,.34);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:22px;height:72px;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(140deg,#1b2836,#0a121a);color:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;box-shadow:inset 0 0 0 1px rgba(184,145,47,.28)}
.brand-name{display:flex;flex-direction:column;line-height:1.22}
.brand-name strong{font-size:15px;color:var(--ink);letter-spacing:.02em}
.brand-name em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.12em}
.header-search{position:relative;display:flex;align-items:center;flex:1 1 200px;max-width:300px}
.header-search input{width:100%;height:38px;padding:0 14px 0 34px;border:1px solid var(--line);border-radius:999px;background:var(--bg-soft);font-size:13px;color:var(--text);outline:none;transition:border-color .2s,background .2s,box-shadow .2s}
.header-search input::placeholder{color:#9aa8b3}
.header-search input:focus{border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px rgba(184,145,47,.14)}
.header-search svg{position:absolute;left:12px;width:15px;height:15px;color:var(--muted);pointer-events:none}
.header-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{position:relative;padding:8px 12px;font-size:14px;color:var(--text);border-radius:8px;transition:color .2s,background .2s;white-space:nowrap}
.nav-link:hover{color:var(--ink);background:var(--bg-soft)}
.nav-link:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;background:var(--accent);border-radius:2px}
.header-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.lang-pill{font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:3px 10px;letter-spacing:.06em}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:999px;font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;cursor:pointer}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.btn-sm{padding:8px 16px;font-size:13px}
.btn-primary{background:var(--accent);color:#131c26}
.btn-primary:hover{background:#cda63f;transform:translateY(-1px);box-shadow:0 12px 24px -14px rgba(184,145,47,.95)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--line);color:var(--ink);background:#fff}
.btn-ghost:hover{border-color:#cfd8e0;box-shadow:var(--shadow-1);transform:translateY(-1px)}
.btn-line{border-color:rgba(255,255,255,.24);color:#f2f6fa;background:rgba(255,255,255,.04)}
.btn-line:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.45)}

/* ===== Article layout ===== */
.page-shell{background:var(--bg-soft);border-bottom:1px solid var(--line)}
.crumbs{max-width:var(--maxw);margin:0 auto;padding:20px 24px 0;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.crumbs a{color:var(--muted);transition:color .2s}
.crumbs a:hover{color:var(--accent-2)}
.crumbs span.sep{color:#c3ccd4}
.article-layout{max-width:var(--maxw);margin:0 auto;padding:22px 24px 64px;display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:36px;align-items:start}
.doc-main{min-width:0}
.article-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-l);padding:clamp(22px,3vw,44px);box-shadow:var(--shadow-1)}
.doc-tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;letter-spacing:.08em;color:var(--accent-2);background:var(--accent-soft);border:1px solid rgba(184,145,47,.24);border-radius:999px;padding:4px 12px;margin-bottom:16px}
.article-title{font-size:clamp(24px,3vw,34px);line-height:1.34;font-weight:800;letter-spacing:-.01em;color:var(--ink);margin:0 0 18px}
.article-meta{display:flex;flex-wrap:wrap;gap:8px 20px;font-size:13px;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:26px}
.article-meta b{font-weight:600;color:var(--ink-2)}

/* ===== Prose ===== */
.prose{max-width:720px;font-size:16px;line-height:1.95;color:var(--text);overflow-wrap:break-word}
.prose h2{font-size:22px;line-height:1.45;color:var(--ink);margin:34px 0 14px;font-weight:700}
.prose h3{font-size:18px;line-height:1.5;color:var(--ink-2);margin:26px 0 12px;font-weight:700}
.prose h4{font-size:16px;margin:20px 0 10px;font-weight:700;color:var(--ink-2)}
.prose p{margin:0 0 16px}
.prose ul{list-style:disc;padding-left:22px;margin:0 0 16px}
.prose ol{list-style:decimal;padding-left:22px;margin:0 0 16px}
.prose li{margin:6px 0}
.prose a{color:var(--accent-2);text-decoration:underline;text-underline-offset:3px}
.prose a:hover{color:var(--accent)}
.prose blockquote{margin:0 0 18px;padding:14px 18px;background:var(--accent-soft);border-left:3px solid var(--accent);border-radius:0 var(--radius-s) var(--radius-s) 0;color:var(--ink-2)}
.prose img{border-radius:var(--radius);margin:18px 0}
.prose table{width:100%;border-collapse:collapse;margin:0 0 18px;font-size:14.5px}
.prose th,.prose td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.prose th{background:var(--bg-soft);font-weight:600;color:var(--ink-2)}
.prose hr{border:0;border-top:1px solid var(--line);margin:28px 0}
.prose code{background:var(--bg-soft);border:1px solid var(--line);border-radius:6px;padding:1px 6px;font-size:14px}

/* ===== Empty state ===== */
.empty-box{max-width:560px;padding:8px 0 4px}
.empty-box h2{font-size:19px;color:var(--ink);margin:0 0 10px}
.empty-box p{color:var(--muted);margin:0 0 22px;font-size:15px}

/* ===== Blocks under article ===== */
.doc-block{margin-top:28px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-l);padding:clamp(20px,2.6vw,34px);box-shadow:var(--shadow-1)}
.doc-block > h2{font-size:clamp(19px,2.1vw,23px);color:var(--ink);margin:0 0 10px;letter-spacing:-.01em}
.doc-block > p.lead{font-size:14.5px;line-height:1.9;color:var(--muted);margin:0 0 22px;max-width:760px}
.term-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.term-card{min-width:0;border:1px solid var(--line);border-radius:var(--radius);padding:18px 18px 16px;background:#fff;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.term-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#d8e0e7}
.term-card h3{font-size:15.5px;margin:0 0 8px;color:var(--ink);display:flex;align-items:center;gap:8px}
.term-card h3 i{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:0 0 6px}
.term-card p{margin:0;font-size:14px;line-height:1.85;color:var(--muted)}

.check-list{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.check-list li{display:flex;gap:12px;align-items:flex-start;padding:12px 16px;border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-soft);font-size:14.5px;line-height:1.8}
.check-list li span.num{flex:0 0 24px;width:24px;height:24px;border-radius:50%;background:#fff;border:1px solid rgba(184,145,47,.35);color:var(--accent-2);font-size:12.5px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:2px}

.channel-card{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;border:1px solid var(--line);border-radius:var(--radius);padding:20px;background:linear-gradient(120deg,#fbfcfe,#f6f8fa)}
.channel-card .ch-text{min-width:0;flex:1 1 320px}
.channel-card h3{font-size:16.5px;margin:0 0 6px;color:var(--ink)}
.channel-card p{margin:0;font-size:14px;color:var(--muted);line-height:1.85}

/* ===== Download ===== */
.dl-panel{margin-top:28px;border-radius:var(--radius-l);border:1px solid rgba(255,255,255,.12);background:radial-gradient(130% 150% at 12% 0%,#1b2836 0%,#0c141d 55%,#070d13 100%);color:#e8eef4;padding:clamp(22px,3vw,38px);box-shadow:var(--shadow-2)}
.dl-panel .dl-kicker{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.18em;color:#93a6b8;border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:4px 12px;margin-bottom:16px}
.dl-panel .dl-kicker i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block}
.dl-panel h2{font-size:clamp(20px,2.4vw,27px);margin:0 0 12px;color:#fff;letter-spacing:-.01em}
.dl-panel p.dl-desc{margin:0;max-width:720px;color:#a6b6c6;font-size:14.5px;line-height:1.9}
.dl-actions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:22px}
.dl-btn{display:flex;align-items:center;gap:12px;min-width:0;padding:14px 16px;border-radius:var(--radius);border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.05);color:#eef4f9;transition:transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease}
.dl-btn:hover{transform:translateY(-2px);background:rgba(184,145,47,.16);border-color:rgba(184,145,47,.5);box-shadow:0 16px 32px -22px rgba(0,0,0,.9)}
.dl-btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.dl-btn .dl-ico{flex:0 0 34px;width:34px;height:34px;border-radius:10px;background:rgba(184,145,47,.16);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700}
.dl-btn .dl-txt{min-width:0}
.dl-btn strong{display:block;font-size:14.5px;color:#fff;line-height:1.4}
.dl-btn em{font-style:normal;display:block;font-size:12px;color:#93a6b8;letter-spacing:.02em}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:10px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden}
.faq-item summary{list-style:none;cursor:pointer;padding:16px 18px;font-size:15px;font-weight:600;color:var(--ink);display:flex;align-items:center;justify-content:space-between;gap:12px;transition:background .2s}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:var(--bg-soft)}
.faq-item summary:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}
.faq-item summary::after{content:"+";flex:0 0 auto;font-size:18px;color:var(--accent-2);font-weight:700;line-height:1}
.faq-item[open] summary::after{content:"–"}
.faq-item .faq-body{padding:0 18px 16px;font-size:14.5px;line-height:1.9;color:var(--muted)}

/* ===== Sidebar ===== */
.doc-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px;min-width:0}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 18px 16px;box-shadow:var(--shadow-1);min-width:0}
.side-card h2{font-size:12px;letter-spacing:.14em;color:var(--muted);margin:0 0 12px;font-weight:700}
.doc-side-title{font-size:11px;letter-spacing:.18em;color:#93a2ad;margin-bottom:12px}
.doc-side-list{display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line)}
.doc-side-list a{display:block;padding:8px 14px;font-size:13.5px;color:var(--muted);border-left:2px solid transparent;margin-left:-1px;transition:color .2s,border-color .2s,background .2s;border-radius:0 6px 6px 0}
.doc-side-list a:hover{color:var(--ink);border-left-color:var(--accent);background:var(--bg-soft)}
.doc-side-list a:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}
.side-note{font-size:13px;line-height:1.85;color:var(--muted);margin:0}
.side-dl{display:flex;flex-direction:column;gap:8px}
.side-dl a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:var(--radius-s);font-size:13.5px;color:var(--ink-2);background:#fff;transition:border-color .2s,background .2s,transform .2s}
.side-dl a:hover{border-color:rgba(184,145,47,.45);background:var(--accent-soft);transform:translateX(2px)}
.side-dl a span.sign{color:var(--accent-2);font-weight:700}

/* ===== Footer ===== */
.site-footer{background:#0c141d;color:#93a6b8;padding:56px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,minmax(0,1fr));gap:34px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand strong{color:#fff;font-size:15.5px}
.footer-desc{font-size:13.5px;line-height:1.9;color:#8798a8;margin:0;max-width:420px}
.footer-col h3{font-size:13px;letter-spacing:.1em;color:#fff;margin:0 0 14px;font-weight:700}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.footer-col a{font-size:13.5px;color:#93a6b8;transition:color .2s}
.footer-col a:hover{color:var(--accent)}
.friend-links{margin-top:38px;border-top:1px solid rgba(255,255,255,.08);padding-top:24px}
.friend-links h3{font-size:13px;letter-spacing:.1em;color:#fff;margin:0 0 14px;font-weight:700}
.friend-links ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px 22px}
.friend-links a{font-size:13.5px;color:#93a6b8;transition:color .2s}
.friend-links a:hover{color:var(--accent)}
.footer-bottom{margin-top:26px;border-top:1px solid rgba(255,255,255,.08);padding-top:18px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:12.5px;color:#77879a}

@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:26px}
  .doc-side{position:static}
  .header-search{max-width:220px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:900px){
  .header-search{display:none}
  .lang-pill{display:none}
}
@media (max-width:768px){
  .header-inner{height:auto;flex-wrap:wrap;gap:10px;padding:12px 16px}
  .header-nav{margin-left:0;width:100%;overflow-x:auto;padding-bottom:4px;gap:2px}
  .header-tools{margin-left:auto}
  .container,.crumbs,.article-layout{padding-left:16px;padding-right:16px}
  .term-grid{grid-template-columns:minmax(0,1fr)}
  .dl-actions{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr}
  .prose{font-size:15.5px}
}
@media (max-width:520px){
  .article-card{padding:20px 16px;border-radius:var(--radius)}
  .doc-block{padding:18px 16px;border-radius:var(--radius)}
  .dl-panel{padding:20px 16px;border-radius:var(--radius)}
  .article-title{font-size:22px}
  .btn{padding:11px 18px;font-size:14px}
  .footer-bottom{flex-direction:column;gap:6px}
}

/* roulang page: category1 */
:root{
  --ink:#0c141d;
  --ink-2:#152130;
  --text:#1f2b38;
  --muted:#65757f;
  --line:#e4e9ee;
  --bg:#ffffff;
  --bg-soft:#f6f8fa;
  --accent:#b8912f;
  --accent-2:#96771f;
  --accent-soft:#f7f1e1;
  --radius-s:8px;
  --radius:14px;
  --radius-l:22px;
  --shadow-1:0 1px 2px rgba(12,20,29,.06);
  --shadow-2:0 18px 44px -22px rgba(12,20,29,.34);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit}
ul,ol{margin:0;padding:0}
p{margin:0}
[id]{scroll-margin-top:92px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:22px;height:72px;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(140deg,#1b2836,#0a121a);color:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;box-shadow:inset 0 0 0 1px rgba(184,145,47,.28)}
.brand-name{display:flex;flex-direction:column;line-height:1.22}
.brand-name strong{font-size:15px;color:var(--ink);letter-spacing:.02em}
.brand-name em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.12em}
.header-search{position:relative;display:flex;align-items:center;flex:1 1 200px;max-width:300px}
.header-search input{width:100%;height:38px;padding:0 14px 0 34px;border:1px solid var(--line);border-radius:999px;background:var(--bg-soft);font-size:13px;color:var(--text);outline:none;transition:border-color .2s,background .2s,box-shadow .2s}
.header-search input::placeholder{color:#9aa8b3}
.header-search input:focus{border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px rgba(184,145,47,.14)}
.header-search svg{position:absolute;left:12px;width:15px;height:15px;color:var(--muted);pointer-events:none}
.header-nav{display:flex;align-items:center;gap:4px;margin-left:auto;min-width:0}
.nav-link{position:relative;padding:8px 12px;font-size:14px;color:var(--text);border-radius:8px;transition:color .2s,background .2s;white-space:nowrap}
.nav-link:hover{color:var(--ink);background:var(--bg-soft)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;background:var(--accent);border-radius:2px}
.header-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.lang-pill{font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:3px 10px;letter-spacing:.06em}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:999px;font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;cursor:pointer}
.btn-sm{padding:8px 16px;font-size:13px}
.btn-primary{background:var(--accent);color:#131c26}
.btn-primary:hover{background:#cda63f;transform:translateY(-1px);box-shadow:0 12px 24px -14px rgba(184,145,47,.95)}
.btn-primary:active{transform:translateY(0)}
.btn-primary:focus-visible{outline:2px solid var(--accent-2);outline-offset:3px}
.btn-outline{border-color:rgba(255,255,255,.26);color:#f2f6fa;background:rgba(255,255,255,.02)}
.btn-outline:hover{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.45)}
.btn-outline:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.btn-ghost{border-color:var(--line);color:var(--ink);background:#fff}
.btn-ghost:hover{border-color:#cfd8e0;box-shadow:var(--shadow-1);transform:translateY(-1px)}

/* ===== Category hero ===== */
.cat-hero{position:relative;overflow:hidden;background:radial-gradient(130% 150% at 12% 0%,#1b2836 0%,#0c141d 52%,#070d13 100%);color:#e8eef4}
.cat-hero::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:64px 64px}
.cat-hero-inner{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:62px 24px 56px;display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:48px;align-items:start}
.hero-kicker{display:inline-flex;align-items:center;gap:9px;font-size:12px;letter-spacing:.2em;color:#93a6b8;border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:5px 14px;margin-bottom:20px}
.hero-kicker i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block}
.cat-hero h1{font-size:clamp(26px,3.3vw,40px);font-weight:800;color:#fff;letter-spacing:-.01em;line-height:1.3;margin:0 0 18px}
.cat-hero-lead{font-size:15.5px;line-height:1.95;color:#a6b6c6;max-width:680px;margin:0 0 26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-points{list-style:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 22px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12)}
.hero-points li{display:flex;align-items:flex-start;gap:9px;font-size:13.5px;color:#b7c6d3;line-height:1.7;min-width:0}
.hero-points li::before{content:"";flex:0 0 6px;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-top:9px}

/* hero board */
.hero-board{border:1px solid rgba(255,255,255,.13);border-radius:var(--radius-l);background:rgba(255,255,255,.05);padding:22px 22px 6px;backdrop-filter:blur(4px);box-shadow:var(--shadow-2)}
.board-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.1);font-size:11.5px;letter-spacing:.16em;color:#93a6b8}
.board-head strong{font-size:12px;letter-spacing:.06em;color:var(--accent);font-weight:700}
.board-row{display:flex;align-items:baseline;gap:14px;padding:15px 0;border-bottom:1px dashed rgba(255,255,255,.1)}
.board-row:last-child{border-bottom:0}
.board-idx{font-size:12px;color:var(--accent);font-variant-numeric:tabular-nums;flex:0 0 auto}
.board-main{flex:1 1 auto;min-width:0}
.board-name{font-size:14.5px;font-weight:600;color:#eef4f9}
.board-meta{font-size:12.5px;color:#8fa2b3;margin-top:3px;line-height:1.6}
.board-tag{flex:0 0 auto;font-size:11.5px;border:1px solid rgba(184,145,47,.45);color:var(--accent);border-radius:999px;padding:2px 9px;white-space:nowrap}

/* ===== Sections ===== */
.section{padding:58px 0}
.section-soft{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:820px;margin-bottom:32px}
.section-head .eyebrow{display:inline-block;font-size:11.5px;letter-spacing:.2em;color:var(--accent-2);margin-bottom:12px;font-weight:700}
.section-head h2{font-size:clamp(21px,2.4vw,29px);font-weight:800;color:var(--ink);letter-spacing:-.01em;line-height:1.35;margin:0 0 12px}
.section-head p{font-size:15px;line-height:1.95;color:var(--muted)}

/* stat strip */
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.stat-card{min-width:0;border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:22px 20px;box-shadow:var(--shadow-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#d5dde5}
.stat-label{font-size:12px;letter-spacing:.12em;color:var(--muted);margin-bottom:10px;display:block}
.stat-value{font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.01em;line-height:1.35;margin-bottom:8px}
.stat-note{font-size:13px;color:var(--muted);line-height:1.75}

/* scene cards */
.scene-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.scene-card{min-width:0;border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:26px 24px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;position:relative;overflow:hidden}
.scene-card::before{content:"";position:absolute;left:0;top:0;width:3px;height:100%;background:linear-gradient(180deg,var(--accent),rgba(184,145,47,0));opacity:0;transition:opacity .25s ease}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#d5dde5}
.scene-card:hover::before{opacity:1}
.scene-card h3{font-size:17px;font-weight:700;color:var(--ink);margin:0 0 10px;line-height:1.5}
.scene-card p{font-size:14px;line-height:1.9;color:var(--muted)}
.scene-tagline{display:inline-block;font-size:11.5px;letter-spacing:.14em;color:var(--accent-2);margin-bottom:10px;font-weight:700}

/* calc section */
.calc-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:34px;align-items:start}
.calc-list{list-style:none;display:flex;flex-direction:column;gap:16px}
.calc-item{display:flex;gap:14px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:20px 22px;min-width:0}
.calc-num{flex:0 0 30px;width:30px;height:30px;border-radius:9px;background:var(--accent-soft);color:var(--accent-2);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800}
.calc-item h3{font-size:15.5px;font-weight:700;color:var(--ink);margin:0 0 6px}
.calc-item p{font-size:13.5px;line-height:1.85;color:var(--muted)}
.calc-panel{border:1px solid var(--line);border-radius:var(--radius-l);background:linear-gradient(180deg,#fbfcfd,#f4f7f9);padding:26px 24px;box-shadow:var(--shadow-1)}
.calc-panel-title{font-size:12px;letter-spacing:.16em;color:var(--muted);margin-bottom:20px}
.calc-flow{list-style:none;position:relative;padding-left:4px}
.calc-flow li{position:relative;padding:0 0 22px 28px;font-size:14px;color:var(--text);line-height:1.75}
.calc-flow li:last-child{padding-bottom:0}
.calc-flow li::before{content:"";position:absolute;left:0;top:6px;width:10px;height:10px;border-radius:50%;background:#fff;border:2px solid var(--accent)}
.calc-flow li::after{content:"";position:absolute;left:4px;top:20px;bottom:2px;width:2px;background:var(--line)}
.calc-flow li:last-child::after{display:none}
.calc-flow strong{display:block;font-weight:700;color:var(--ink);margin-bottom:2px}
.calc-flow span{font-size:13px;color:var(--muted)}
.calc-formula{margin-top:22px;padding:14px 16px;border-radius:var(--radius-s);background:#fff;border:1px dashed #d8e0e7;font-size:13px;color:var(--ink);line-height:1.8}
.calc-formula em{font-style:normal;color:var(--accent-2);font-weight:700}

/* plans */
.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.plan-card{min-width:0;border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:26px 24px;display:flex;flex-direction:column;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#d5dde5}
.plan-card.is-featured{background:linear-gradient(180deg,#141f2b,#0c141d);border-color:#1c2a38;color:#dfe8ef}
.plan-card.is-featured h3{color:#fff}
.plan-card.is-featured p{color:#9db0bf}
.plan-card.is-featured .plan-meta{color:#8fa2b3}
.plan-name{font-size:12px;letter-spacing:.16em;color:var(--accent-2);font-weight:700;margin-bottom:12px}
.plan-card.is-featured .plan-name{color:var(--accent)}
.plan-card h3{font-size:19px;font-weight:800;color:var(--ink);margin:0 0 10px;line-height:1.4}
.plan-card p{font-size:13.5px;line-height:1.9;color:var(--muted);margin-bottom:16px}
.plan-meta{list-style:none;display:flex;flex-direction:column;gap:8px;font-size:13px;color:var(--muted);margin-top:auto;padding-top:16px;border-top:1px solid var(--line)}
.plan-card.is-featured .plan-meta{border-top-color:rgba(255,255,255,.12)}
.plan-meta li{display:flex;gap:8px;align-items:flex-start}
.plan-meta li::before{content:"";flex:0 0 5px;width:5px;height:5px;border-radius:50%;background:var(--accent);margin-top:9px}

/* steps */
.steps-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}
.step-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:22px 18px;min-width:0;transition:transform .25s ease,box-shadow .25s ease}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.step-num{font-size:12px;font-weight:800;color:var(--accent-2);letter-spacing:.14em;margin-bottom:10px;display:block}
.step-card h3{font-size:15px;font-weight:700;color:var(--ink);margin:0 0 8px;line-height:1.5}
.step-card p{font-size:13px;line-height:1.8;color:var(--muted)}

/* compare */
.cmp-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.cmp{display:grid;grid-template-columns:190px repeat(2,minmax(0,1fr));min-width:660px}
.cmp-cell{padding:16px 20px;border-bottom:1px solid var(--line);font-size:13.5px;line-height:1.8;color:var(--text);min-width:0}
.cmp-cell.head{background:var(--bg-soft);font-weight:700;color:var(--ink);font-size:13.5px;letter-spacing:.02em}
.cmp-cell.dim{color:var(--muted);background:#fcfdfe;font-weight:600}
.cmp-cell.hl{background:var(--accent-soft);color:#5c4a12}
.cmp > .cmp-cell:nth-last-child(-n+3){border-bottom:0}

/* risk */
.risk-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.risk-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:24px;min-width:0}
.risk-card h3{font-size:16px;font-weight:700;color:var(--ink);margin:0 0 10px}
.risk-card p{font-size:13.8px;line-height:1.9;color:var(--muted)}
.risk-warn{border:1px solid #ecd9a8;background:#fbf6e9;border-radius:var(--radius);padding:22px 24px;margin-top:18px}
.risk-warn h3{font-size:15.5px;font-weight:800;color:#7a5d13;margin:0 0 8px}
.risk-warn p{font-size:13.5px;line-height:1.9;color:#7a5d13;opacity:.92}

/* news */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.news-card{min-width:0;border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:22px;display:flex;flex-direction:column;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#d5dde5}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:12px;font-size:12px;color:var(--muted)}
.news-cat{background:var(--accent-soft);color:var(--accent-2);border-radius:999px;padding:2px 10px;font-weight:600}
.news-card h3{font-size:16px;font-weight:700;color:var(--ink);line-height:1.55;margin:0 0 10px}
.news-card h3 a{transition:color .2s}
.news-card h3 a:hover{color:var(--accent-2)}
.news-summary{font-size:13.5px;line-height:1.85;color:var(--muted)}
.news-empty{border:1px dashed var(--line);border-radius:var(--radius);padding:32px;text-align:center;color:var(--muted);font-size:14px;background:#fff}

/* faq */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:0 22px;transition:border-color .2s,box-shadow .2s}
.faq-item[open]{border-color:#d8dfe6;box-shadow:var(--shadow-1)}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 0;font-size:15.5px;font-weight:700;color:var(--ink);display:flex;align-items:center;justify-content:space-between;gap:16px;line-height:1.6}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:0 0 auto;font-size:18px;color:var(--accent-2);font-weight:700;transition:transform .2s}
.faq-item[open] summary::after{content:"−"}
.faq-item .faq-body{padding:0 0 20px;font-size:14px;line-height:1.95;color:var(--muted)}

/* cta + download */
.cta-band{position:relative;overflow:hidden;background:radial-gradient(120% 140% at 88% 0%,#1b2836 0%,#0c141d 55%,#070d13 100%);color:#e8eef4;padding:62px 0}
.cta-band::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.4;background-image:linear-gradient(rgba(255,255,255,.032) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.032) 1px,transparent 1px);background-size:62px 62px}
.cta-inner{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:0 24px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:44px;align-items:center}
.cta-inner h2{font-size:clamp(22px,2.6vw,31px);font-weight:800;color:#fff;line-height:1.35;margin:0 0 14px;letter-spacing:-.01em}
.cta-inner p{font-size:14.5px;line-height:1.95;color:#a6b6c6;max-width:560px}
.dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.dl-card{display:flex;flex-direction:column;gap:6px;border:1px solid rgba(255,255,255,.15);background:rgba(255,255,255,.05);border-radius:var(--radius);padding:18px 16px;min-width:0;transition:transform .22s ease,background .22s ease,border-color .22s ease,box-shadow .22s ease}
.dl-card:hover{transform:translateY(-3px);background:rgba(255,255,255,.1);border-color:rgba(184,145,47,.55);box-shadow:0 18px 32px -20px rgba(0,0,0,.8)}
.dl-card:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.dl-os{font-size:11.5px;letter-spacing:.14em;color:#93a6b8}
.dl-name{font-size:15px;font-weight:700;color:#fff}
.dl-hint{font-size:12px;color:#8fa2b3}
.dl-foot{margin-top:16px;font-size:12.5px;color:#8fa2b3;line-height:1.8}

/* footer */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.7fr repeat(3,minmax(0,1fr));gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand strong{font-size:15px;color:var(--ink);font-weight:700;line-height:1.4}
.footer-desc{font-size:13.5px;color:var(--muted);line-height:1.9;max-width:400px}
.footer-col h3{font-size:13px;color:var(--ink);letter-spacing:.08em;margin:0 0 14px;font-weight:700}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.footer-col a{font-size:13.5px;color:var(--muted);transition:color .2s}
.footer-col a:hover{color:var(--accent-2)}
.friend-links{margin-top:42px;padding-top:26px;border-top:1px solid var(--line)}
.friend-links h3{font-size:13px;color:var(--ink);letter-spacing:.08em;margin:0 0 14px;font-weight:700}
.friend-links ul{list-style:none;display:flex;flex-wrap:wrap;gap:10px 20px}
.friend-links a{font-size:13px;color:var(--muted);transition:color .2s}
.friend-links a:hover{color:var(--accent-2)}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-top:30px;padding:18px 0;border-top:1px solid var(--line);font-size:12.5px;color:#8b98a3}

/* responsive */
@media (max-width:1024px){
  .cat-hero-inner{grid-template-columns:1fr;gap:34px;padding:52px 24px 48px}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .plan-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .header-search{max-width:200px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-inner{grid-template-columns:1fr;gap:30px}
  .calc-grid{grid-template-columns:1fr;gap:26px}
}
@media (max-width:860px){
  .header-search{display:none}
  .lang-pill{display:none}
  .header-tools .btn{display:none}
  .scene-grid{grid-template-columns:1fr}
  .risk-grid{grid-template-columns:1fr}
  .plan-grid{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .dl-grid{grid-template-columns:1fr}
  .cta-band{padding:50px 0}
}
@media (max-width:640px){
  .header-inner{height:auto;flex-wrap:wrap;padding:10px 16px;gap:10px}
  .brand{flex:1 1 auto}
  .header-nav{width:100%;margin-left:0;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:2px}
  .nav-link{padding:8px 10px;font-size:13.5px}
  .nav-link.is-active::after{left:10px;right:10px}
  .container{padding:0 18px}
  .cat-hero-inner{padding:44px 18px 42px}
  .hero-points{grid-template-columns:1fr}
  .section{padding:44px 0}
  .hero-board{padding:18px 18px 4px}
  .stat-grid{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-band{padding:44px 0}
}