/* roulang page: index */
:root{
  --ink:#0d1015;
  --ink-soft:#151a21;
  --ink-line:rgba(255,255,255,.10);
  --gold:#c79a4b;
  --gold-light:#e8c98c;
  --gold-deep:#a97c33;
  --paper:#f7f5f0;
  --card:#ffffff;
  --text:#1b2027;
  --muted:#5d6570;
  --line:#e5e0d6;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:22px;
  --shadow-sm:0 2px 10px rgba(20,24,30,.05);
  --shadow:0 18px 40px -22px rgba(20,24,30,.35);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:4px}

.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--ink);
  box-shadow:0 10px 30px -20px rgba(0,0,0,.9);
}
.header-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding-top:14px;
  padding-bottom:14px;
}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(150deg,var(--gold-light),var(--gold-deep));
  color:#15110a;
  font-size:19px;
  font-weight:700;
  letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-text strong{
  color:#fff;
  font-size:17px;
  letter-spacing:.02em;
  line-height:1.3;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.brand-text em{
  font-style:normal;
  font-size:12.5px;
  color:#98a1ad;
  letter-spacing:.06em;
  line-height:1.5;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 20px;
  border-radius:999px;
  font-size:14.5px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .18s ease,box-shadow .22s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-gold{
  background:linear-gradient(150deg,var(--gold-light),var(--gold));
  color:#1a1408;
  box-shadow:0 10px 24px -14px rgba(199,154,75,.9);
}
.btn-gold:hover{background:linear-gradient(150deg,#f0d7a4,var(--gold-deep));box-shadow:0 14px 28px -14px rgba(199,154,75,.95)}
.btn-line{
  border-color:rgba(255,255,255,.22);
  color:#e8ecf2;
  background:rgba(255,255,255,.04);
}
.btn-line:hover{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.34)}
.btn-dark{
  background:var(--ink);
  color:#f1eee7;
  border-color:var(--ink);
}
.btn-dark:hover{background:#232a34;border-color:#232a34}
.btn-ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--text);
}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold-deep);background:rgba(199,154,75,.07)}
.btn-sm{padding:9px 16px;font-size:13.5px}

.channel-bar{
  background:#11161d;
  border-top:1px solid var(--ink-line);
  border-bottom:1px solid var(--ink-line);
}
.channel-inner{padding-top:8px;padding-bottom:8px}
.channel-nav{
  display:flex;
  align-items:center;
  gap:6px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channel-nav::-webkit-scrollbar{display:none}
.channel-nav a{
  flex:0 0 auto;
  padding:8px 15px;
  border-radius:999px;
  font-size:14px;
  color:#b3bbc6;
  white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.channel-nav a:hover{background:rgba(255,255,255,.08);color:#fff}
.channel-nav a.is-active{
  background:linear-gradient(150deg,var(--gold-light),var(--gold));
  color:#1a1408;
  font-weight:700;
}

/* ---------- hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  padding:66px 0 76px;
  background:
    radial-gradient(90% 80% at 88% 4%, #262c35 0%, rgba(13,16,21,0) 62%),
    linear-gradient(180deg,#0d1015 0%, #101419 100%);
  color:#eef1f5;
}
.hero::before{
  content:"";
  position:absolute;
  left:-140px;
  bottom:-180px;
  width:420px;
  height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(199,154,75,.22),rgba(199,154,75,0) 68%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);
  gap:52px;
  align-items:center;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.hero-badge{
  font-size:12.5px;
  letter-spacing:.08em;
  padding:5px 13px;
  border-radius:999px;
  border:1px solid rgba(199,154,75,.45);
  color:var(--gold-light);
  background:rgba(199,154,75,.08);
}
.hero h1{
  font-size:clamp(27px,3.1vw,40px);
  line-height:1.38;
  color:#fff;
  font-weight:700;
  letter-spacing:.01em;
  margin-bottom:20px;
}
.hero h1 .accent{color:var(--gold-light)}
.hero-lead{
  font-size:15.5px;
  line-height:1.95;
  color:#c2c9d3;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.level-row{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:30px;
}
.level-chip{
  flex:1 1 150px;
  min-width:0;
  padding:12px 15px;
  border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.13);
  background:rgba(255,255,255,.045);
  transition:border-color .22s ease,background .22s ease;
}
.level-chip:hover{border-color:rgba(199,154,75,.55);background:rgba(199,154,75,.08)}
.level-chip b{display:block;color:var(--gold-light);font-size:14px;margin-bottom:3px}
.level-chip span{font-size:12.5px;color:#a7aeba;line-height:1.6}

.member-card{
  position:relative;
  max-width:420px;
  margin-left:auto;
  padding:26px 24px 22px;
  border-radius:var(--radius-lg);
  border:1px solid rgba(199,154,75,.36);
  background:linear-gradient(152deg,#232a34 0%,#12161c 62%,#0c0f14 100%);
  box-shadow:0 34px 70px -30px rgba(0,0,0,.95);
  overflow:hidden;
}
.member-card::after{
  content:"";
  position:absolute;
  top:-60px;
  right:-70px;
  width:220px;
  height:220px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(232,201,140,.24),rgba(232,201,140,0) 70%);
  pointer-events:none;
}
.member-card-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:22px;
}
.member-card-brand{font-size:15px;font-weight:700;color:#fff;letter-spacing:.03em}
.member-card-tier{
  font-size:11.5px;
  letter-spacing:.1em;
  padding:4px 10px;
  border-radius:999px;
  color:#1a1408;
  background:linear-gradient(150deg,var(--gold-light),var(--gold));
  font-weight:700;
}
.member-card-title{
  font-size:22px;
  font-weight:700;
  color:var(--gold-light);
  letter-spacing:.04em;
  margin-bottom:6px;
}
.member-card-sub{font-size:13px;color:#98a1ad;margin-bottom:22px}
.member-rows{display:grid;gap:10px;margin-bottom:20px}
.member-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:10px 13px;
  border-radius:10px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.07);
  font-size:13.5px;
  color:#cfd6df;
}
.member-row em{font-style:normal;color:var(--gold-light);font-size:12.5px}
.member-card-foot{
  padding-top:16px;
  border-top:1px dashed rgba(255,255,255,.16);
  font-size:12.5px;
  color:#8f98a4;
  letter-spacing:.06em;
}

/* ---------- sections ---------- */
.section{padding:74px 0}
.section--alt{background:#fff}
.section--ink{background:var(--ink);color:#e6eaf0}
.section--ink .section-head p{color:#a5adb9}
.section--ink h2{color:#fff}
.section-head{max-width:780px;margin-bottom:38px}
.eyebrow{
  display:inline-block;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--gold-deep);
  margin-bottom:12px;
}
.section--ink .eyebrow{color:var(--gold-light)}
.section-head h2{
  font-size:clamp(21px,2.3vw,29px);
  line-height:1.45;
  letter-spacing:.01em;
  margin-bottom:14px;
}
.section-head p{font-size:15px;line-height:1.9;color:var(--muted)}

/* ---------- metric ---------- */
.metric-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
}
.metric{
  position:relative;
  min-width:0;
  padding:24px 22px 22px;
  border-radius:var(--radius);
  background:var(--card);
  border:1px solid var(--line);
  box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.metric::before{
  content:"";
  position:absolute;
  left:22px;
  top:0;
  width:34px;
  height:3px;
  border-radius:0 0 3px 3px;
  background:linear-gradient(90deg,var(--gold),var(--gold-light));
}
.metric:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(199,154,75,.5)}
.metric strong{display:block;font-size:15.5px;margin-bottom:8px;color:var(--ink)}
.metric p{font-size:14px;line-height:1.8;color:var(--muted)}

/* ---------- cards ---------- */
.card-grid{display:grid;gap:20px}
.card-grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.card-grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card-grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.site-card{
  min-width:0;
  display:flex;
  flex-direction:column;
  padding:24px 22px;
  border-radius:var(--radius);
  background:var(--card);
  border:1px solid var(--line);
  box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.site-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(199,154,75,.55)}
.site-card h3{font-size:16.5px;line-height:1.55;margin-bottom:10px;color:var(--ink)}
.site-card p{font-size:14px;line-height:1.8;color:var(--muted)}
.card-index{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:30px;
  height:30px;
  border-radius:9px;
  font-size:13px;
  font-weight:700;
  color:var(--gold-deep);
  background:rgba(199,154,75,.14);
  margin-bottom:14px;
}
.tag{
  display:inline-block;
  align-self:flex-start;
  font-size:12px;
  padding:3px 10px;
  border-radius:999px;
  color:var(--gold-deep);
  background:rgba(199,154,75,.13);
  margin-bottom:12px;
}
.pick-card .pick-meta{font-size:12.5px;color:#8b939e;margin-top:14px}
.empty-tip{font-size:14.5px;color:var(--muted);padding:18px 0}

/* ---------- compare ---------- */
.compare{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.compare-col{
  min-width:0;
  padding:26px 24px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--card);
}
.compare-col h3{font-size:16.5px;margin-bottom:16px;color:var(--ink)}
.compare-col ul{display:grid;gap:12px}
.compare-col li{
  position:relative;
  padding-left:20px;
  font-size:14px;
  line-height:1.8;
  color:var(--muted);
}
.compare-col li::before{
  content:"";
  position:absolute;
  left:2px;
  top:10px;
  width:7px;
  height:7px;
  border-radius:50%;
  background:#c9c2b5;
}
.compare-col--gold{
  border-color:rgba(199,154,75,.5);
  background:linear-gradient(180deg,#fffdf8,#fff);
  box-shadow:var(--shadow);
}
.compare-col--gold h3{color:var(--gold-deep)}
.compare-col--gold li::before{background:linear-gradient(150deg,var(--gold-light),var(--gold))}

/* ---------- timeline ---------- */
.timeline{
  display:grid;
  grid-template-columns:repeat(5,minmax(0,1fr));
  gap:16px;
  counter-reset:step;
}
.timeline-item{
  position:relative;
  min-width:0;
  padding:24px 20px;
  border-radius:var(--radius);
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.045);
  transition:border-color .22s ease,background .22s ease,transform .22s ease;
}
.timeline-item:hover{border-color:rgba(199,154,75,.55);background:rgba(199,154,75,.08);transform:translateY(-3px)}
.timeline-item .step-no{
  display:inline-block;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.1em;
  color:var(--gold-light);
  margin-bottom:10px;
}
.timeline-item h3{font-size:15.5px;color:#fff;margin-bottom:8px}
.timeline-item p{font-size:13.5px;line-height:1.8;color:#a5adb9}

/* ---------- news ---------- */
.news-layout{
  display:grid;
  grid-template-columns:minmax(0,1.62fr) minmax(0,1fr);
  gap:32px;
  align-items:start;
}
.news-list{display:grid;gap:16px}
.news-item{
  display:block;
  min-width:0;
  padding:22px 24px;
  border-radius:var(--radius);
  background:var(--card);
  border:1px solid var(--line);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:rgba(199,154,75,.55)}
.news-item h3{font-size:16.5px;line-height:1.6;margin-bottom:8px;color:var(--ink)}
.news-item p{font-size:14px;line-height:1.8;color:var(--muted)}
.news-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:12px;
  font-size:12.5px;
  color:#8b939e;
}
.news-meta span{padding:2px 9px;border-radius:999px;background:#f2efe8}
.news-meta span:first-child{color:var(--gold-deep);background:rgba(199,154,75,.13)}
.news-aside{
  min-width:0;
  padding:24px 22px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:#fffdf8;
  box-shadow:var(--shadow-sm);
}
.news-aside h3{font-size:16px;margin-bottom:16px;color:var(--ink)}
.aside-list{display:grid;gap:14px}
.aside-list a{
  display:block;
  min-width:0;
  padding-bottom:13px;
  border-bottom:1px dashed var(--line);
  font-size:14px;
  line-height:1.7;
  color:#333a43;
  transition:color .2s ease;
}
.aside-list a:hover{color:var(--gold-deep)}
.aside-list a:last-child{border-bottom:none;padding-bottom:0}
.aside-list .aside-meta{display:block;font-size:12px;color:#939ba6;margin-top:5px}

/* ---------- tags ---------- */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag-cloud span{
  padding:9px 16px;
  border-radius:999px;
  font-size:13.5px;
  color:#3b434e;
  background:#fff;
  border:1px solid var(--line);
  transition:border-color .2s ease,color .2s ease,background .2s ease,transform .2s ease;
}
.tag-cloud span:hover{border-color:var(--gold);color:var(--gold-deep);background:#fffdf6;transform:translateY(-2px)}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--card);
  overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item[open]{border-color:rgba(199,154,75,.55);box-shadow:var(--shadow-sm)}
.faq-item summary{
  cursor:pointer;
  padding:18px 22px;
  font-size:15.5px;
  font-weight:600;
  color:var(--ink);
  list-style:none;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  font-size:19px;
  font-weight:500;
  color:var(--gold-deep);
  transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{
  padding:0 22px 20px;
  font-size:14.5px;
  line-height:1.9;
  color:var(--muted);
}

/* ---------- configurator ---------- */
.configurator{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);
  gap:28px;
  align-items:start;
}
.field-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-bottom:20px}
.field{min-width:0;display:flex;flex-direction:column;gap:8px}
.field label{font-size:13.5px;color:#4c545f;font-weight:600}
.field select{
  width:100%;
  padding:12px 14px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:#fff;
  font-size:14.5px;
  color:var(--text);
  appearance:none;
  background-image:linear-gradient(45deg,transparent 50%,#8d949e 50%),linear-gradient(135deg,#8d949e 50%,transparent 50%);
  background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;
  background-size:6px 6px,6px 6px;
  background-repeat:no-repeat;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field select:hover{border-color:rgba(199,154,75,.6)}
.field select:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(199,154,75,.16);outline:none}
.result-box{
  min-height:180px;
  padding:24px 22px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:#fffdf8;
  box-shadow:var(--shadow-sm);
}
.result-box h3{font-size:15.5px;margin-bottom:10px;color:var(--gold-deep)}
.result-box p{font-size:14.5px;line-height:1.9;color:var(--muted)}
.result-box .hint{display:block;margin-top:14px;font-size:12.5px;color:#96 9ea8}
.result-box .hint{color:#969ea8}

/* ---------- download ---------- */
.download-panel{
  padding:44px 40px;
  border-radius:var(--radius-lg);
  background:
    radial-gradient(80% 120% at 92% 0%, #2a3138 0%, rgba(13,16,21,0) 60%),
    linear-gradient(150deg,#12161c,#0c0f14);
  border:1px solid rgba(199,154,75,.32);
  color:#e9edf2;
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
  gap:32px;
  align-items:center;
}
.download-panel h2{font-size:clamp(20px,2.2vw,26px);color:#fff;margin-bottom:14px;line-height:1.45}
.download-panel p{font-size:14.5px;line-height:1.9;color:#a9b2bd}
.download-actions{display:grid;gap:12px}
.download-btn{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:15px 20px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.05);
  color:#eef2f7;
  font-size:15px;
  font-weight:600;
  transition:border-color .22s ease,background .22s ease,transform .2s ease;
}
.download-btn:hover{border-color:rgba(199,154,75,.7);background:rgba(199,154,75,.13);transform:translateY(-2px)}
.download-btn em{font-style:normal;font-size:12.5px;font-weight:500;color:#a2abb6}
.download-btn--primary{
  background:linear-gradient(150deg,var(--gold-light),var(--gold));
  color:#1a1408;
  border-color:transparent;
}
.download-btn--primary em{color:#5b4519}
.download-btn--primary:hover{background:linear-gradient(150deg,#f2d9a8,var(--gold-deep))}
.download-note{margin-top:16px;font-size:12.5px;color:#8d959f;line-height:1.8}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink);
  color:#9aa3af;
  padding:56px 0 26px;
  border-top:1px solid var(--ink-line);
}
.footer-top{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) repeat(2,minmax(0,1fr));
  gap:36px;
  padding-bottom:34px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-brand .brand-mark{width:38px;height:38px;flex:0 0 38px;font-size:17px}
.footer-brand strong{color:#fff;font-size:16px;letter-spacing:.02em}
.footer-desc{font-size:13.5px;line-height:1.9;color:#8f98a4;max-width:420px}
.footer-col h4{font-size:14px;color:#e7ebf0;margin-bottom:14px;letter-spacing:.04em}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:13.5px;color:#98a1ad;transition:color .2s ease}
.footer-col a:hover{color:var(--gold-light)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:10px 20px;
  justify-content:space-between;
  padding-top:22px;
  font-size:12.5px;
  color:#79818c;
  line-height:1.8;
}
.footer-bottom a:hover{color:var(--gold-light)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:38px}
  .member-card{margin:0 auto;max-width:480px}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .card-grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .card-grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-layout{grid-template-columns:minmax(0,1fr)}
  .configurator{grid-template-columns:minmax(0,1fr)}
  .download-panel{grid-template-columns:minmax(0,1fr);padding:36px 30px}
  .footer-top{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .hero{padding:48px 0 56px}
  .field-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .compare{grid-template-columns:minmax(0,1fr)}
  .header-actions .btn-line{padding:10px 16px;font-size:13.5px}
  .footer-top{grid-template-columns:minmax(0,1fr);gap:28px}
}
@media (max-width:520px){
  .header-top{gap:12px;padding-top:12px;padding-bottom:12px}
  .brand-text em{display:none}
  .brand-text strong{font-size:15.5px}
  .header-actions .btn-line{display:none}
  .header-actions .btn-gold{padding:9px 15px;font-size:13.5px}
  .brand-mark{width:36px;height:36px;flex:0 0 36px;font-size:16px;border-radius:10px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .metric-grid{grid-template-columns:minmax(0,1fr)}
  .card-grid--4,.card-grid--3,.card-grid--2{grid-template-columns:minmax(0,1fr)}
  .timeline{grid-template-columns:minmax(0,1fr)}
  .field-grid{grid-template-columns:minmax(0,1fr)}
  .download-panel{padding:28px 20px}
  .download-btn{flex-direction:column;align-items:flex-start;gap:4px}
  .section-head{margin-bottom:28px}
  .news-item{padding:20px}
  .footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: article */
:root{
  --ink:#0d1015;
  --ink-soft:#151a21;
  --ink-line:rgba(255,255,255,.10);
  --gold:#c79a4b;
  --gold-light:#e8c98c;
  --gold-deep:#a97c33;
  --paper:#f7f5f0;
  --card:#ffffff;
  --text:#1b2027;
  --muted:#5d6570;
  --line:#e5e0d6;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:22px;
  --shadow-sm:0 2px 10px rgba(20,24,30,.05);
  --shadow:0 18px 40px -22px rgba(20,24,30,.35);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding-left:0}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--ink);
  box-shadow:0 10px 30px -20px rgba(0,0,0,.9);
}
.header-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding-top:14px;
  padding-bottom:14px;
}
.brand{display:flex;align-items:center;gap:12px;min-width:0;flex:1 1 auto}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(150deg,var(--gold-light),var(--gold-deep));
  color:#15110a;
  font-size:19px;
  font-weight:700;
  letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-text strong{
  color:#fff;
  font-size:17px;
  letter-spacing:.02em;
  line-height:1.3;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.brand-text em{
  font-style:normal;
  font-size:12.5px;
  color:#98a1ad;
  letter-spacing:.06em;
  line-height:1.5;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 20px;
  border-radius:999px;
  font-size:14.5px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .18s ease,box-shadow .22s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible{outline:2px solid var(--gold-light);outline-offset:2px}
.btn-gold{
  background:linear-gradient(150deg,var(--gold-light),var(--gold));
  color:#1a1408;
  box-shadow:0 10px 24px -14px rgba(199,154,75,.9);
}
.btn-gold:hover{background:linear-gradient(150deg,#f0d7a4,var(--gold-deep));box-shadow:0 14px 28px -14px rgba(199,154,75,.95)}
.btn-line{
  border-color:rgba(255,255,255,.22);
  color:#e8ecf2;
  background:rgba(255,255,255,.04);
}
.btn-line:hover{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.34)}
.btn-dark{
  background:var(--ink);
  color:#f1eee7;
  border-color:var(--ink);
}
.btn-dark:hover{background:#232a34;border-color:#232a34}
.btn-ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--text);
}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold-deep);background:rgba(199,154,75,.07)}
.btn-sm{padding:9px 16px;font-size:13.5px}
.channel-bar{background:#0a0d11;border-top:1px solid rgba(255,255,255,.07)}
.channel-inner{display:flex;align-items:center}
.channel-nav{
  display:flex;
  align-items:center;
  gap:6px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  padding:8px 0;
}
.channel-nav::-webkit-scrollbar{display:none}
.channel-nav a{
  flex:0 0 auto;
  padding:8px 15px;
  border-radius:999px;
  font-size:14px;
  color:#b3bbc6;
  white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.channel-nav a:hover{background:rgba(255,255,255,.08);color:#fff}
.channel-nav a:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
.channel-nav a.is-active{
  background:linear-gradient(150deg,var(--gold-light),var(--gold));
  color:#1a1408;
  font-weight:700;
}
/* ---------- page ---------- */
.page-main{padding:36px 0 8px}
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:20px;
}
.crumbs a{color:#7a828d;transition:color .2s ease}
.crumbs a:hover{color:var(--gold-deep)}
.crumbs .sep{color:#c3c9d1}
.post-hero{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:34px 38px;
  box-shadow:var(--shadow-sm);
}
.post-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 14px;
  border-radius:999px;
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--gold-deep);
  background:rgba(199,154,75,.12);
  border:1px solid rgba(199,154,75,.32);
}
.post-hero h1{
  font-size:clamp(23px,2.6vw,33px);
  line-height:1.45;
  letter-spacing:.01em;
  margin:16px 0 14px;
  color:#12161c;
}
.post-lead{
  font-size:15.5px;
  line-height:1.95;
  color:#3f4650;
}
.post-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  font-size:13.3px;
  color:var(--muted);
  border-top:1px dashed var(--line);
  padding-top:16px;
  margin-top:22px;
}
.post-meta span{display:inline-flex;align-items:center;gap:6px}
.post-meta b{color:#2c333c;font-weight:600}
.post-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 318px;
  gap:30px;
  align-items:start;
  margin-top:30px;
}
.post-main{min-width:0}
.article-shell{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:36px 40px;
  box-shadow:var(--shadow-sm);
}
.article-body{max-width:760px}
.article-body>*:first-child{margin-top:0}
.article-body h2{
  font-size:20.5px;
  line-height:1.55;
  margin:34px 0 14px;
  padding-left:14px;
  border-left:4px solid var(--gold);
  color:#12161c;
}
.article-body h3{
  font-size:17.5px;
  line-height:1.6;
  margin:26px 0 10px;
  color:#171c23;
}
.article-body h4{font-size:15.5px;margin:20px 0 8px;color:#171c23}
.article-body p{margin:0 0 16px;line-height:1.95;color:#2c333c}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 16px}
.article-body li{margin-bottom:8px;line-height:1.9;color:#2c333c}
.article-body blockquote{
  margin:22px 0;
  padding:16px 20px;
  background:#faf7f1;
  border-left:3px solid var(--gold);
  border-radius:0 12px 12px 0;
  color:#4a5158;
  font-size:14.8px;
  line-height:1.95;
}
.article-body img{border-radius:12px;margin:20px auto;box-shadow:var(--shadow-sm)}
.article-body a{color:var(--gold-deep);border-bottom:1px solid rgba(199,154,75,.45)}
.article-body a:hover{color:#8a6425}
.article-body table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14.5px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;line-height:1.7}
.article-body th{background:#faf8f3;color:#2c333c;font-weight:600}
.article-body strong{color:#14181e}
.article-empty{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:44px 36px;
  text-align:center;
  box-shadow:var(--shadow-sm);
}
.article-empty h2{font-size:20px;margin-bottom:12px}
.article-empty p{color:var(--muted);font-size:14.5px;margin-bottom:22px}
/* ---------- sidebar ---------- */
.side-stack{display:grid;gap:16px;position:sticky;top:104px}
.side-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
  box-shadow:var(--shadow-sm);
  min-width:0;
}
.side-card h3{
  font-size:15px;
  letter-spacing:.04em;
  color:#12161c;
  margin-bottom:14px;
  padding-bottom:10px;
  border-bottom:1px solid var(--line);
}
.side-list{list-style:none;display:grid;gap:10px;margin:0}
.side-list li{display:flex;gap:9px;font-size:13.6px;line-height:1.8;color:var(--muted)}
.side-list li::before{
  content:"";
  width:6px;height:6px;flex:0 0 6px;
  margin-top:9px;
  border-radius:50%;
  background:var(--gold);
}
.dl-stack{display:grid;gap:10px}
.dl-btn{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:11px 14px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fbfaf7;
  font-size:13.8px;
  font-weight:600;
  color:#242b33;
  transition:border-color .2s ease,background .2s ease,transform .18s ease,box-shadow .2s ease;
}
.dl-btn em{font-style:normal;font-size:12px;color:#8d949c;font-weight:500}
.dl-btn:hover{border-color:var(--gold);background:#fdf8ee;transform:translateY(-1px);box-shadow:0 10px 20px -16px rgba(199,154,75,.9)}
.dl-btn:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
/* ---------- sections ---------- */
.content-section{margin-top:44px}
.section-head{max-width:730px;margin-bottom:22px}
.section-head h2{
  font-size:clamp(20px,2.2vw,26px);
  line-height:1.5;
  color:#12161c;
  margin-bottom:10px;
}
.section-head p{font-size:14.6px;line-height:1.9;color:var(--muted)}
.rules-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.rule-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px 22px;
  min-width:0;
  box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rule-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(199,154,75,.45)}
.rule-num{
  width:32px;height:32px;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:rgba(199,154,75,.14);
  color:var(--gold-deep);
  font-size:13.5px;
  font-weight:700;
  margin-bottom:14px;
}
.rule-card h3{font-size:16px;margin-bottom:10px;color:#12161c}
.rule-card p{font-size:14px;line-height:1.9;color:var(--muted)}
/* ---------- download ---------- */
.download-band{
  margin-top:44px;
  background:
    radial-gradient(80% 120% at 88% 0%, #262c35 0%, rgba(13,16,21,0) 62%),
    linear-gradient(150deg,#141a22,#0c0f14);
  border-radius:var(--radius-lg);
  padding:34px 34px;
  color:#eef1f5;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:30px;
  align-items:center;
  border:1px solid rgba(199,154,75,.24);
}
.download-band h2{font-size:21px;color:#fff;margin-bottom:12px;line-height:1.5}
.download-band p{font-size:14.3px;line-height:1.95;color:#b3bbc6}
.dl-grid{display:grid;gap:12px}
.dl-item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:14px 18px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.05);
  transition:border-color .2s ease,background .2s ease,transform .18s ease;
}
.dl-item:hover{border-color:rgba(199,154,75,.7);background:rgba(199,154,75,.1);transform:translateY(-1px)}
.dl-item strong{display:block;font-size:14.6px;color:#fff;margin-bottom:2px}
.dl-item em{font-style:normal;font-size:12.4px;color:#98a1ad}
.dl-item .dl-go{
  flex:0 0 auto;
  padding:7px 16px;
  border-radius:999px;
  font-size:13px;
  font-weight:700;
  color:#1a1408;
  background:linear-gradient(150deg,var(--gold-light),var(--gold));
  transition:background .2s ease;
}
.dl-item:hover .dl-go{background:linear-gradient(150deg,#f0d7a4,var(--gold-deep))}
/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:rgba(199,154,75,.5);box-shadow:var(--shadow-sm)}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:17px 22px;
  font-size:15px;
  font-weight:600;
  color:#171c23;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  font-size:18px;
  line-height:1;
  color:var(--gold-deep);
  transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"–"}
.faq-item summary:focus-visible{outline:2px solid var(--gold);outline-offset:-2px}
.faq-body{padding:0 22px 20px;font-size:14.3px;line-height:1.95;color:var(--muted)}
/* ---------- related ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.post-card{
  display:flex;
  flex-direction:column;
  gap:10px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
  min-width:0;
  box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(199,154,75,.45)}
.post-card .card-kicker{font-size:12.4px;letter-spacing:.06em;color:var(--gold-deep)}
.post-card h3{font-size:16px;line-height:1.65;color:#12161c}
.post-card .card-more{font-size:13px;color:#8d949c;margin-top:auto}
.post-card:hover .card-more{color:var(--gold-deep)}
/* ---------- apply ---------- */
.apply-box{
  margin-top:44px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:34px;
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:30px;
  align-items:center;
  box-shadow:var(--shadow-sm);
}
.apply-box h2{font-size:21px;line-height:1.5;margin-bottom:12px;color:#12161c}
.apply-box p{font-size:14.4px;line-height:1.95;color:var(--muted)}
.checklist{list-style:none;display:grid;gap:12px;margin:0}
.checklist li{
  display:flex;
  gap:10px;
  font-size:14px;
  line-height:1.85;
  color:#333a43;
  background:#fbfaf7;
  border:1px solid var(--line);
  border-radius:12px;
  padding:12px 15px;
}
.checklist li::before{
  content:"✓";
  flex:0 0 auto;
  color:var(--gold-deep);
  font-weight:700;
}
.apply-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
/* ---------- footer ---------- */
.site-footer{
  background:var(--ink);
  color:#a9b1bc;
  margin-top:64px;
  padding:52px 0 0;
}
.footer-top{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) minmax(0,1fr) minmax(0,1fr);
  gap:36px;
  padding-bottom:34px;
  border-bottom:1px solid rgba(255,255,255,.09);
}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px;margin-bottom:14px}
.footer-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px;font-size:16px}
.footer-desc{font-size:13.4px;line-height:1.95;color:#8f98a4;max-width:520px}
.footer-col h4{color:#fff;font-size:14.5px;margin-bottom:14px;letter-spacing:.04em}
.footer-col ul{list-style:none;display:grid;gap:10px;font-size:13.5px;margin:0}
.footer-col a{color:#9aa3af;transition:color .2s ease}
.footer-col a:hover{color:var(--gold-light)}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  padding:20px 0 26px;
  font-size:12.8px;
  color:#7c8592;
}
/* ---------- responsive ---------- */
@media (max-width:1024px){
  .post-layout{grid-template-columns:minmax(0,1fr)}
  .side-stack{position:static;grid-template-columns:repeat(2,minmax(0,1fr))}
  .rules-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .download-band{grid-template-columns:minmax(0,1fr)}
  .apply-box{grid-template-columns:minmax(0,1fr)}
  .footer-top{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .footer-top>div:first-child{grid-column:1 / -1}
}
@media (max-width:768px){
  .header-top{flex-wrap:wrap;gap:12px}
  .brand-text strong{font-size:15.5px}
  .brand-text em{font-size:11.8px}
  .post-hero{padding:26px 22px;border-radius:var(--radius)}
  .article-shell{padding:26px 20px;border-radius:var(--radius)}
  .rules-grid{grid-template-columns:minmax(0,1fr)}
  .news-grid{grid-template-columns:minmax(0,1fr)}
  .side-stack{grid-template-columns:minmax(0,1fr)}
  .download-band{padding:26px 22px;border-radius:var(--radius)}
  .apply-box{padding:26px 22px;border-radius:var(--radius)}
  .footer-top{grid-template-columns:minmax(0,1fr);gap:26px}
  .page-main{padding-top:26px}
  .content-section{margin-top:34px}
}
@media (max-width:520px){
  .container{padding:0 15px}
  .header-actions .btn{padding:9px 14px;font-size:13px}
  .header-actions .btn-line{display:none}
  .channel-nav a{padding:7px 12px;font-size:13.2px}
  .post-hero h1{font-size:22px}
  .post-lead{font-size:14.6px}
  .dl-item{flex-wrap:wrap;gap:10px;align-items:flex-start}
  .dl-item .dl-go{padding:6px 14px}
  .footer-bottom{flex-direction:column;gap:8px}
  .apply-actions .btn{flex:1 1 100%}
}

/* roulang page: category1 */
:root{
  --ink:#0d1015;
  --ink-soft:#151a21;
  --ink-line:rgba(255,255,255,.10);
  --gold:#c79a4b;
  --gold-light:#e8c98c;
  --gold-deep:#a97c33;
  --paper:#f7f5f0;
  --card:#ffffff;
  --text:#1b2027;
  --muted:#5d6570;
  --line:#e5e0d6;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:22px;
  --shadow-sm:0 2px 10px rgba(20,24,30,.05);
  --shadow:0 18px 40px -22px rgba(20,24,30,.35);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.42;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;cursor:pointer}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--ink);
  box-shadow:0 10px 30px -20px rgba(0,0,0,.9);
}
.header-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding-top:14px;
  padding-bottom:14px;
}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(150deg,var(--gold-light),var(--gold-deep));
  color:#15110a;
  font-size:19px;
  font-weight:700;
  letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-text strong{
  color:#fff;
  font-size:17px;
  letter-spacing:.02em;
  line-height:1.3;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.brand-text em{
  font-style:normal;
  font-size:12.5px;
  color:#98a1ad;
  letter-spacing:.06em;
  line-height:1.5;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 20px;
  border-radius:999px;
  font-size:14.5px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .18s ease,box-shadow .22s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible{outline:2px solid var(--gold-light);outline-offset:3px}
.btn-gold{
  background:linear-gradient(150deg,var(--gold-light),var(--gold));
  color:#1a1408;
  box-shadow:0 10px 24px -14px rgba(199,154,75,.9);
}
.btn-gold:hover{background:linear-gradient(150deg,#f0d7a4,var(--gold-deep));box-shadow:0 14px 28px -14px rgba(199,154,75,.95)}
.btn-line{
  border-color:rgba(255,255,255,.22);
  color:#e8ecf2;
  background:rgba(255,255,255,.04);
}
.btn-line:hover{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.34)}
.btn-dark{
  background:var(--ink);
  color:#f1eee7;
  border-color:var(--ink);
}
.btn-dark:hover{background:#232a34;border-color:#232a34}
.btn-ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--text);
}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold-deep);background:rgba(199,154,75,.07)}
.btn-sm{padding:9px 16px;font-size:13.5px}
.btn-block{width:100%}

.channel-bar{
  background:rgba(255,255,255,.035);
  border-top:1px solid var(--ink-line);
}
.channel-inner{padding:0 20px}
.channel-nav{
  display:flex;
  align-items:center;
  gap:6px;
  padding:8px 0;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channel-nav::-webkit-scrollbar{display:none}
.channel-nav a{
  flex:0 0 auto;
  padding:8px 15px;
  border-radius:999px;
  font-size:14px;
  color:#b3bbc6;
  white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.channel-nav a:hover{background:rgba(255,255,255,.08);color:#fff}
.channel-nav a:focus-visible{outline:2px solid var(--gold-light);outline-offset:2px}
.channel-nav a.is-active{
  background:linear-gradient(150deg,var(--gold-light),var(--gold));
  color:#1a1408;
  font-weight:700;
}

/* ---------- category hero ---------- */
.cat-hero{
  position:relative;
  overflow:hidden;
  padding:56px 0 64px;
  background:
    radial-gradient(90% 80% at 88% 4%, #262c35 0%, rgba(13,16,21,0) 62%),
    linear-gradient(180deg,#0d1015 0%, #101419 100%);
  color:#eef1f5;
}
.cat-hero::before{
  content:"";
  position:absolute;
  left:-150px;
  bottom:-190px;
  width:420px;
  height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(199,154,75,.20),rgba(199,154,75,0) 68%);
  pointer-events:none;
}
.cat-hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);
  gap:48px;
  align-items:center;
}
.crumb{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  letter-spacing:.08em;
  color:var(--gold-light);
  padding:5px 13px;
  border-radius:999px;
  border:1px solid rgba(199,154,75,.42);
  background:rgba(199,154,75,.08);
  margin-bottom:20px;
}
.cat-hero h1{
  font-size:clamp(26px,3vw,38px);
  line-height:1.4;
  color:#fff;
  margin-bottom:18px;
  max-width:640px;
}
.cat-hero h1 .accent{color:var(--gold-light)}
.cat-hero-lead{
  font-size:15.5px;
  line-height:1.95;
  color:#c2c9d3;
  max-width:640px;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.hero-tag{
  font-size:12.5px;
  color:#a9b2bd;
  padding:5px 12px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.04);
}

.gauge-card{
  position:relative;
  padding:26px 24px 22px;
  border-radius:var(--radius-lg);
  border:1px solid rgba(199,154,75,.34);
  background:linear-gradient(152deg,#232a34 0%,#12161c 62%,#0c0f14 100%);
  box-shadow:0 34px 70px -30px rgba(0,0,0,.95);
  overflow:hidden;
  min-width:0;
}
.gauge-card::after{
  content:"";
  position:absolute;
  top:-70px;
  right:-70px;
  width:220px;
  height:220px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(232,201,140,.22),rgba(232,201,140,0) 70%);
  pointer-events:none;
}
.gauge-card h2{
  font-size:16px;
  color:#fff;
  margin-bottom:8px;
}
.gauge-card .gauge-sub{
  font-size:12.8px;
  color:#98a1ad;
  line-height:1.7;
  margin-bottom:20px;
}
.gauge-row{margin-bottom:16px}
.gauge-row:last-of-type{margin-bottom:0}
.gauge-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:#c8cfd8;
  margin-bottom:7px;
}
.gauge-head b{color:var(--gold-light);font-weight:700}
.gauge-track{
  height:10px;
  border-radius:999px;
  background:rgba(255,255,255,.10);
  overflow:hidden;
}
.gauge-track span{
  display:block;
  height:100%;
  border-radius:999px;
  background:linear-gradient(90deg,var(--gold-deep),var(--gold-light));
}
.gauge-note{
  margin-top:18px;
  padding-top:14px;
  border-top:1px solid var(--ink-line);
  font-size:12.2px;
  line-height:1.75;
  color:#8e97a3;
}

/* ---------- sections ---------- */
.section{padding:64px 0}
.section--white{background:#fff}
.section--paper{background:var(--paper)}
.section--ink{
  background:linear-gradient(180deg,#0d1015 0%,#11151b 100%);
  color:#e8ecf2;
}
.section-head{max-width:800px;margin-bottom:34px}
.eyebrow{
  display:inline-block;
  font-size:12.5px;
  letter-spacing:.14em;
  color:var(--gold-deep);
  font-weight:600;
  margin-bottom:10px;
}
.section--ink .eyebrow{color:var(--gold-light)}
.section-head h2{
  font-size:clamp(21px,2.3vw,29px);
  color:var(--text);
  margin-bottom:12px;
}
.section-head p{
  font-size:15.3px;
  color:var(--muted);
  line-height:1.9;
}
.section--ink .section-head h2{color:#fff}
.section--ink .section-head p{color:#b3bbc6}

/* ---------- matrix ---------- */
.matrix-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.matrix-card{
  min-width:0;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px 22px;
  box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.matrix-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow);
  border-color:rgba(199,154,75,.45);
}
.matrix-no{
  display:inline-block;
  font-size:12px;
  letter-spacing:.12em;
  color:var(--gold-deep);
  font-weight:700;
  margin-bottom:10px;
}
.matrix-card h3{font-size:17px;margin-bottom:9px}
.matrix-card p{font-size:14.4px;color:var(--muted);line-height:1.85}

/* ---------- compare ---------- */
.compare-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;
}
.compare-card{
  min-width:0;
  border-radius:var(--radius);
  padding:22px 22px 20px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.04);
  transition:border-color .22s ease,background .22s ease;
}
.compare-card:hover{border-color:rgba(199,154,75,.5);background:rgba(255,255,255,.06)}
.compare-card.is-focus{
  border-color:rgba(199,154,75,.62);
  background:rgba(199,154,75,.10);
}
.compare-card h3{
  font-size:16px;
  color:#fff;
  margin-bottom:16px;
  display:flex;
  align-items:center;
  gap:8px;
}
.compare-card h3 .dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--gold-light);
  flex:0 0 8px;
}
.compare-list li{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:12px;
  padding:9px 0;
  border-bottom:1px dashed rgba(255,255,255,.10);
  font-size:14px;
  color:#adb6c1;
  min-width:0;
}
.compare-list li:last-child{border-bottom:0}
.compare-list li b{
  color:#fff;
  font-size:15px;
  font-weight:700;
  white-space:nowrap;
}
.compare-note{
  margin-top:26px;
  font-size:13px;
  line-height:1.85;
  color:#8e97a3;
  padding:14px 18px;
  border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.03);
}

/* ---------- timeline ---------- */
.timeline{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;
}
.step-card{
  min-width:0;
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px 22px 20px;
  box-shadow:var(--shadow-sm);
  transition:border-color .22s ease,transform .22s ease;
}
.step-card:hover{border-color:rgba(199,154,75,.45);transform:translateY(-2px)}
.step-num{
  width:32px;height:32px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:rgba(199,154,75,.12);
  color:var(--gold-deep);
  font-size:14px;
  font-weight:700;
  margin-bottom:14px;
}
.step-card h3{font-size:15.6px;margin-bottom:8px}
.step-card p{font-size:14px;color:var(--muted);line-height:1.82}

/* ---------- news ---------- */
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.news-card{
  min-width:0;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(199,154,75,.45)}
.news-link{
  display:flex;
  flex-direction:column;
  height:100%;
  padding:22px;
  gap:10px;
}
.news-cat{
  align-self:flex-start;
  font-size:12px;
  color:var(--gold-deep);
  background:rgba(199,154,75,.11);
  border:1px solid rgba(199,154,75,.28);
  padding:3px 10px;
  border-radius:999px;
}
.news-link h3{
  font-size:16px;
  line-height:1.6;
  color:var(--text);
  transition:color .2s ease;
}
.news-card:hover .news-link h3{color:var(--gold-deep)}
.news-link p{
  font-size:14px;
  color:var(--muted);
  line-height:1.82;
  flex:1 1 auto;
}
.news-date{
  font-size:12.5px;
  color:#93999f;
  border-top:1px solid var(--line);
  padding-top:12px;
  margin-top:4px;
}
.news-empty{
  font-size:14.5px;
  color:var(--muted);
  padding:26px 24px;
  border:1px dashed var(--line);
  border-radius:var(--radius);
  background:#fff;
}

/* ---------- assure ---------- */
.assure-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
}
.assure-card{
  min-width:0;
  background:#fff;
  border:1px solid var(--line);
  border-left:3px solid var(--gold);
  border-radius:var(--radius-sm);
  padding:20px 20px 18px;
  box-shadow:var(--shadow-sm);
  transition:box-shadow .22s ease,transform .22s ease;
}
.assure-card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.assure-card h3{font-size:15.4px;margin-bottom:8px}
.assure-card p{font-size:13.9px;color:var(--muted);line-height:1.85}

/* ---------- calculator ---------- */
.calc-wrap{
  display:grid;
  grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);
  gap:22px;
  align-items:start;
}
.calc-panel{
  min-width:0;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 24px;
  box-shadow:var(--shadow-sm);
}
.field{margin-bottom:18px}
.field label{
  display:block;
  font-size:13.6px;
  font-weight:600;
  color:var(--text);
  margin-bottom:8px;
}
.field input,.field select{
  width:100%;
  padding:12px 14px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:#fbfaf7;
  font-size:15px;
  color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field input:focus,.field select:focus{
  outline:none;
  border-color:var(--gold);
  background:#fff;
  box-shadow:0 0 0 3px rgba(199,154,75,.16);
}
.calc-result{
  min-width:0;
  background:linear-gradient(160deg,#171c23 0%,#0f1319 100%);
  border:1px solid rgba(199,154,75,.3);
  border-radius:var(--radius);
  padding:26px 24px;
  color:#e9edf3;
}
.calc-result h3{font-size:16px;color:#fff;margin-bottom:16px}
.calc-list li{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:12px;
  padding:11px 0;
  border-bottom:1px dashed rgba(255,255,255,.12);
  font-size:14px;
  color:#a9b2bd;
  min-width:0;
}
.calc-list li:last-child{border-bottom:0}
.calc-list li b{color:var(--gold-light);font-size:16px;white-space:nowrap}
.calc-tip{
  margin-top:16px;
  font-size:12.5px;
  line-height:1.8;
  color:#8b949f;
}

/* ---------- faq ---------- */
.faq-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
}
.faq-item{
  min-width:0;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:6px 22px;
  box-shadow:var(--shadow-sm);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item[open]{border-color:rgba(199,154,75,.5);box-shadow:var(--shadow)}
.faq-item summary{
  cursor:pointer;
  list-style:none;
  padding:16px 0;
  font-size:15.2px;
  font-weight:600;
  color:var(--text);
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:12px;
  line-height:1.65;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  color:var(--gold-deep);
  font-size:18px;
  font-weight:700;
  line-height:1.4;
  transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item summary:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
.faq-body{
  padding:0 0 18px;
  font-size:14.3px;
  color:var(--muted);
  line-height:1.9;
}

/* ---------- download & apply ---------- */
.section--download{
  background:linear-gradient(180deg,#0f1319 0%,#0b0e13 100%);
  color:#e8ecf2;
  padding:64px 0 70px;
}
.download-panel{
  border-radius:var(--radius-lg);
  border:1px solid rgba(199,154,75,.28);
  background:
    radial-gradient(70% 120% at 92% 0%, rgba(232,201,140,.16), rgba(232,201,140,0) 62%),
    linear-gradient(150deg,#1a1f27 0%,#11151b 100%);
  padding:34px 32px;
  margin-bottom:22px;
}
.download-head{max-width:720px;margin-bottom:26px}
.download-head h2{font-size:clamp(20px,2.2vw,27px);color:#fff;margin-bottom:12px}
.download-head p{font-size:14.8px;color:#b3bbc6;line-height:1.9}
.download-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;
}
.download-item{
  min-width:0;
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:20px;
  border-radius:var(--radius);
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.04);
  transition:border-color .22s ease,background .22s ease,transform .22s ease;
}
.download-item:hover{border-color:rgba(199,154,75,.55);background:rgba(199,154,75,.08);transform:translateY(-2px)}
.download-item h3{font-size:15.5px;color:#fff}
.download-item p{font-size:13.2px;color:#9aa3af;line-height:1.75}
.download-item .file-name{
  font-size:12px;
  color:#7f8894;
  letter-spacing:.04em;
}
.apply-panel{
  border-radius:var(--radius-lg);
  border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.035);
  padding:30px 32px;
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);
  gap:24px;
  align-items:center;
}
.apply-panel h2{font-size:clamp(19px,2vw,24px);color:#fff;margin-bottom:10px}
.apply-panel p{font-size:14.4px;color:#b3bbc6;line-height:1.9}
.apply-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.apply-actions .btn{flex:0 1 auto}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink);
  color:#98a1ad;
  padding:52px 0 26px;
  border-top:1px solid var(--ink-line);
}
.footer-top{
  display:grid;
  grid-template-columns:minmax(0,1.6fr) minmax(0,.7fr) minmax(0,.7fr);
  gap:34px;
  padding-bottom:30px;
  border-bottom:1px solid var(--ink-line);
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-brand strong{color:#fff;font-size:16.5px;letter-spacing:.02em}
.footer-desc{font-size:13.6px;line-height:1.9;color:#8b949f;max-width:520px}
.footer-col h4{
  color:#fff;
  font-size:14.5px;
  margin-bottom:14px;
  letter-spacing:.04em;
}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{
  font-size:13.8px;
  color:#98a1ad;
  transition:color .2s ease;
}
.footer-col ul li a:hover{color:var(--gold-light)}
.footer-col ul li a:focus-visible{outline:2px solid var(--gold-light);outline-offset:2px}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding-top:20px;
  font-size:12.8px;
  color:#7b848f;
  flex-wrap:wrap;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .cat-hero-grid{grid-template-columns:minmax(0,1fr);gap:34px}
  .gauge-card{max-width:520px;margin:0 auto}
  .matrix-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .compare-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .assure-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .calc-wrap{grid-template-columns:minmax(0,1fr)}
  .download-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .apply-panel{grid-template-columns:minmax(0,1fr)}
  .apply-actions{justify-content:flex-start}
  .footer-top{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .footer-top > div:first-child{grid-column:1 / -1}
}
@media (max-width:768px){
  .section{padding:48px 0}
  .cat-hero{padding:42px 0 50px}
  .faq-list{grid-template-columns:minmax(0,1fr)}
  .download-grid{grid-template-columns:minmax(0,1fr)}
  .download-panel{padding:26px 22px}
  .apply-panel{padding:24px 22px}
}
@media (max-width:640px){
  .matrix-grid{grid-template-columns:minmax(0,1fr)}
  .compare-grid{grid-template-columns:minmax(0,1fr)}
  .timeline{grid-template-columns:minmax(0,1fr)}
  .news-grid{grid-template-columns:minmax(0,1fr)}
  .assure-grid{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:520px){
  .header-top{flex-wrap:wrap;gap:12px}
  .header-actions{width:100%;justify-content:flex-start}
  .brand-text strong{font-size:15.5px}
  .brand-text em{display:none}
  .btn{padding:9px 15px;font-size:13.4px}
  .channel-nav a{padding:7px 12px;font-size:13.2px}
  .cat-hero h1{font-size:24px}
  .cat-hero-lead{font-size:14.6px}
  .gauge-card{padding:22px 18px}
  .footer-top{grid-template-columns:minmax(0,1fr);gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .calc-panel,.calc-result{padding:22px 18px}
  .faq-item{padding:4px 18px}
}