/* roulang page: index */
:root{
  --ink:#0b1220;
  --ink-2:#141e30;
  --ink-3:#1d2a40;
  --gold:#e6b96b;
  --gold-soft:#f7e2ba;
  --gold-deep:#c2944a;
  --bg:#f5f6fa;
  --surface:#ffffff;
  --surface-2:#eceff6;
  --text:#1b2434;
  --muted:#616e86;
  --line:#e3e7f0;
  --radius:14px;
  --radius-sm:10px;
  --radius-lg:20px;
  --shadow-sm:0 2px 8px rgba(15,23,42,.05);
  --shadow:0 12px 30px rgba(15,23,42,.09);
  --shadow-lg:0 22px 48px rgba(15,23,42,.16);
  --max:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15.5px;
  line-height:1.78;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;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-deep);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 22px;}

/* ============ header / nav ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(245,246,250,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(227,231,240,.9);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(15,23,42,.10);}
.nav-shell{
  position:relative;
  display:flex;align-items:center;gap:18px;
  margin:12px 0;
  padding:10px 14px 10px 18px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:var(--shadow-sm);
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(140deg,var(--ink-2),var(--ink));
  color:var(--gold);
  font-weight:800;font-size:17px;
  letter-spacing:0;
  box-shadow:inset 0 0 0 1px rgba(230,185,107,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:.2px;color:var(--ink);}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--muted);letter-spacing:.3px;}
.nav-panel{
  display:flex;align-items:center;gap:4px;
  margin-left:auto;
  padding:5px;
  background:var(--surface-2);
  border-radius:13px;
}
.nav-item{
  display:inline-flex;align-items:center;
  padding:8px 15px;
  border-radius:9px;
  font-size:14.5px;font-weight:500;
  color:var(--muted);
  transition:background .2s ease,color .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.nav-item:hover{background:rgba(255,255,255,.75);color:var(--ink);}
.nav-item.is-active{
  background:var(--surface);color:var(--ink);font-weight:700;
  box-shadow:0 2px 6px rgba(15,23,42,.09);
}
.nav-cta{flex-shrink:0;}
.nav-toggle{
  display:none;
  margin-left:auto;
  padding:9px 14px;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--surface-2);
  font-size:14px;font-weight:600;
  cursor:pointer;
  min-height:40px;
}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;
  border:none;border-radius:10px;
  font-size:15px;font-weight:700;letter-spacing:.3px;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
  min-height:44px;
  white-space:nowrap;
}
.btn-gold{
  background:var(--gold);color:#2b1e07;
  box-shadow:0 8px 20px rgba(230,185,107,.28);
}
.btn-gold:hover{background:#f0c67f;transform:translateY(-2px);box-shadow:0 12px 26px rgba(230,185,107,.36);}
.btn-gold:active{transform:translateY(0);}
.btn-primary{background:var(--ink);color:#fff;}
.btn-primary:hover{background:#16223a;transform:translateY(-2px);box-shadow:0 12px 26px rgba(11,18,32,.24);}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.36);}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.6);transform:translateY(-2px);}
.btn-outline{background:transparent;color:var(--ink);border:1px solid var(--line);}
.btn-outline:hover{border-color:var(--gold-deep);color:var(--gold-deep);transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;min-height:40px;}

/* ============ hero ============ */
.hero{
  position:relative;
  overflow:hidden;
  background:var(--ink);
  color:#fff;
  padding:70px 0 78px;
}
.hero-bg{position:absolute;inset:0;z-index:0;}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.42;}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 460px at 12% 18%,rgba(230,185,107,.20),transparent 62%),
    linear-gradient(105deg,rgba(11,18,32,.94) 12%,rgba(11,18,32,.78) 52%,rgba(11,18,32,.62) 100%);
}
.hero-inner{
  position:relative;z-index:1;
  display:grid;
  grid-template-columns:1.32fr .88fr;
  gap:52px;
  align-items:center;
}
.vip-badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 15px;
  border-radius:999px;
  background:rgba(230,185,107,.13);
  border:1px solid rgba(230,185,107,.42);
  color:var(--gold-soft);
  font-size:13px;font-weight:600;letter-spacing:.6px;
}
.vip-dot{width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px rgba(230,185,107,.18);}
.hero h1{
  margin-top:20px;
  font-size:clamp(30px,4vw,45px);
  line-height:1.26;
  font-weight:800;
  letter-spacing:-.4px;
}
.hero-sub{
  margin-top:16px;
  font-size:16.5px;
  color:rgba(255,255,255,.9);
  font-weight:500;
}
.hero-lead{
  margin-top:16px;
  max-width:640px;
  font-size:15px;
  line-height:1.88;
  color:rgba(255,255,255,.76);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-tags li{
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  color:rgba(255,255,255,.82);
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
}
.level-panel{
  padding:26px 24px 24px;
  border-radius:var(--radius-lg);
  background:rgba(255,255,255,.065);
  border:1px solid rgba(255,255,255,.16);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  box-shadow:0 24px 50px rgba(0,0,0,.30);
}
.level-head{display:flex;align-items:center;gap:16px;}
.level-ring{
  width:76px;height:76px;flex:0 0 76px;
  display:grid;place-items:center;align-content:center;
  border-radius:50%;
  border:2px dashed rgba(230,185,107,.7);
  color:var(--gold);
  font-weight:800;font-size:19px;line-height:1.1;
}
.level-ring span{display:block;font-size:10px;font-weight:600;letter-spacing:1.4px;color:rgba(255,255,255,.6);}
.level-head h2{font-size:16.5px;font-weight:700;color:#fff;}
.level-head p{font-size:12.8px;color:rgba(255,255,255,.62);margin-top:2px;}
.level-bar{
  margin-top:18px;height:8px;border-radius:999px;
  background:rgba(255,255,255,.13);
  overflow:hidden;
}
.level-bar i{display:block;height:100%;width:68%;border-radius:999px;background:linear-gradient(90deg,var(--gold-deep),var(--gold-soft));}
.level-bar-note{display:flex;justify-content:space-between;font-size:12px;color:rgba(255,255,255,.58);margin-top:8px;}
.level-list{margin-top:16px;}
.level-list li{
  display:flex;gap:10px;align-items:flex-start;
  padding:10px 0;
  font-size:13.6px;
  color:rgba(255,255,255,.8);
  border-bottom:1px dashed rgba(255,255,255,.13);
}
.level-list li:last-child{border-bottom:none;}
.level-list b{color:var(--gold-soft);font-weight:700;flex:0 0 54px;}
.level-panel .btn{width:100%;margin-top:18px;}

/* ============ sections ============ */
.section{padding:72px 0;}
.section--alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section--ink{background:var(--ink);color:#fff;padding:76px 0;}
.section-head{max-width:740px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:1.4px;
  color:var(--gold-deep);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--gold);border-radius:2px;}
.section-head h2{
  margin-top:12px;
  font-size:clamp(22px,2.7vw,30px);
  line-height:1.36;font-weight:800;letter-spacing:-.3px;color:var(--ink);
}
.section--ink .section-head h2{color:#fff;}
.section-head p{margin-top:12px;font-size:14.6px;color:var(--muted);line-height:1.82;}
.section--ink .section-head p{color:rgba(255,255,255,.68);}

/* ============ stats ============ */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.stat-card{
  padding:26px 22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d5dbe9;}
.stat-num{font-size:31px;font-weight:800;color:var(--ink);line-height:1.1;letter-spacing:-.5px;}
.stat-num small{font-size:14px;font-weight:700;color:var(--gold-deep);margin-left:3px;}
.stat-card h3{margin-top:10px;font-size:14.5px;font-weight:700;color:var(--ink);}
.stat-card p{margin-top:6px;font-size:13.2px;color:var(--muted);line-height:1.7;}

/* ============ pain list ============ */
.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.pain-item{
  position:relative;
  padding:24px 22px 22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pain-item:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d5dbe9;}
.pain-no{
  font-size:13px;font-weight:800;letter-spacing:1.6px;
  color:var(--gold-deep);
}
.pain-item h3{margin-top:8px;font-size:15.5px;font-weight:700;color:var(--ink);line-height:1.5;}
.pain-item p{margin-top:8px;font-size:13.4px;color:var(--muted);line-height:1.75;}
.pain-item::after{
  content:"";position:absolute;left:22px;right:22px;bottom:0;height:2px;
  background:linear-gradient(90deg,var(--gold),transparent);
  opacity:0;transition:opacity .2s ease;
}
.pain-item:hover::after{opacity:1;}

/* ============ cards grid ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.card{
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d8deeb;}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.card:hover .card-media img{transform:scale(1.04);}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:9px;flex:1;}
.card-body h3{font-size:16px;font-weight:700;color:var(--ink);line-height:1.5;}
.card-body p{font-size:13.6px;color:var(--muted);line-height:1.76;}
.tag-row{display:flex;flex-wrap:wrap;gap:7px;margin-top:auto;padding-top:6px;}
.tag{
  display:inline-block;
  padding:3px 10px;
  border-radius:999px;
  font-size:12px;font-weight:600;
  color:var(--gold-deep);
  background:rgba(230,185,107,.14);
  border:1px solid rgba(230,185,107,.32);
}
.tag--plain{color:var(--muted);background:var(--surface-2);border-color:var(--line);}

/* ============ plans ============ */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch;}
.plan{
  display:flex;flex-direction:column;
  padding:28px 24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.plan:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.plan--featured{
  background:var(--ink);
  border-color:rgba(230,185,107,.45);
  color:#fff;
  box-shadow:var(--shadow-lg);
}
.plan--featured:hover{box-shadow:0 26px 56px rgba(11,18,32,.30);}
.plan-flag{
  align-self:flex-start;
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.6px;
  background:rgba(230,185,107,.16);
  color:var(--gold-deep);
  border:1px solid rgba(230,185,107,.4);
}
.plan--featured .plan-flag{color:var(--gold-soft);background:rgba(230,185,107,.18);}
.plan h3{margin-top:14px;font-size:19px;font-weight:800;color:var(--ink);}
.plan--featured h3{color:#fff;}
.plan .plan-size{margin-top:4px;font-size:13px;color:var(--muted);}
.plan--featured .plan-size{color:rgba(255,255,255,.62);}
.plan ul{margin-top:18px;display:flex;flex-direction:column;gap:11px;}
.plan li{
  position:relative;padding-left:20px;
  font-size:13.6px;color:var(--muted);line-height:1.72;
}
.plan--featured li{color:rgba(255,255,255,.78);}
.plan li::before{
  content:"";position:absolute;left:0;top:9px;
  width:8px;height:8px;border-radius:50%;
  background:var(--gold);
  box-shadow:0 0 0 3px rgba(230,185,107,.18);
}
.plan .btn{margin-top:24px;width:100%;}

/* ============ scenes ============ */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.scene-card{
  padding:24px 20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d5dbe9;}
.icon-box{
  width:44px;height:44px;display:grid;place-items:center;
  border-radius:12px;
  background:rgba(11,18,32,.05);
  color:var(--ink);
  border:1px solid rgba(11,18,32,.06);
}
.icon-box svg{width:22px;height:22px;}
.scene-card h3{margin-top:15px;font-size:15.5px;font-weight:700;color:var(--ink);}
.scene-card p{margin-top:7px;font-size:13.3px;color:var(--muted);line-height:1.75;}

/* ============ milestone ============ */
.ms-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative;}
.ms-item{
  padding:24px 20px;
  border-radius:var(--radius);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.14);
  transition:background .2s ease,transform .2s ease,border-color .2s ease;
}
.ms-item:hover{background:rgba(255,255,255,.09);transform:translateY(-4px);border-color:rgba(230,185,107,.45);}
.ms-dot{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12.5px;font-weight:700;letter-spacing:1.2px;color:var(--gold);
}
.ms-dot::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px rgba(230,185,107,.16);}
.ms-item h3{margin-top:13px;font-size:15.5px;font-weight:700;color:#fff;}
.ms-item p{margin-top:8px;font-size:13.2px;color:rgba(255,255,255,.68);line-height:1.76;}

/* ============ channels ============ */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.channel-card{
  display:flex;flex-direction:column;gap:10px;
  padding:26px 24px;
  border-radius:var(--radius);
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(230,185,107,.6);}
.channel-card h3{font-size:17px;font-weight:800;color:var(--ink);}
.channel-card p{font-size:13.6px;color:var(--muted);line-height:1.76;}
.channel-link{
  margin-top:auto;padding-top:12px;
  font-size:13.6px;font-weight:700;color:var(--gold-deep);
  display:inline-flex;align-items:center;gap:6px;
}
.channel-card:hover .channel-link{color:var(--ink);}

/* ============ news ============ */
.news-grid{display:grid;grid-template-columns:1.55fr .8fr;gap:30px;align-items:start;}
.news-list{display:flex;flex-direction:column;gap:14px;}
.news-item{
  display:block;
  padding:20px 24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-left:3px solid var(--gold);
  border-radius:var(--radius-sm);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-item:hover{transform:translateX(4px);box-shadow:var(--shadow);border-color:#d8deeb;border-left-color:var(--gold-deep);}
.news-item h3{margin-top:8px;font-size:15.6px;font-weight:700;color:var(--ink);line-height:1.55;}
.news-item p{margin-top:7px;font-size:13.4px;color:var(--muted);line-height:1.76;}
.news-meta{margin-top:9px;font-size:12.4px;color:#8a94a8;}
.news-side{
  padding:22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
}
.news-side h3{font-size:15px;font-weight:800;color:var(--ink);padding-bottom:12px;border-bottom:1px solid var(--line);}
.side-item{display:block;padding:13px 0;border-bottom:1px dashed var(--line);transition:color .2s ease;}
.side-item:last-child{border-bottom:none;padding-bottom:0;}
.side-item strong{display:block;font-size:13.6px;font-weight:600;color:var(--text);line-height:1.6;}
.side-item span{display:block;margin-top:4px;font-size:12px;color:#8a94a8;}
.side-item:hover strong{color:var(--gold-deep);}
.news-side img{margin-top:16px;border-radius:var(--radius-sm);aspect-ratio:16/9;object-fit:cover;width:100%;}
.empty-note{
  padding:26px;
  background:var(--surface);
  border:1px dashed var(--line);
  border-radius:var(--radius);
  color:var(--muted);
  font-size:14px;
  text-align:center;
}

/* ============ voices ============ */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.voice-card{
  position:relative;
  padding:26px 24px 22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease;
}
.voice-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.voice-card::before{
  content:"”";
  position:absolute;top:6px;right:20px;
  font-size:52px;line-height:1;color:rgba(230,185,107,.35);
  font-family:Georgia,serif;
}
.voice-card p{font-size:13.8px;color:var(--muted);line-height:1.82;}
.voice-user{display:flex;align-items:center;gap:10px;margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);}
.voice-avatar{
  width:34px;height:34px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--ink);color:var(--gold);
  font-size:13px;font-weight:800;
}
.voice-user strong{font-size:13.4px;font-weight:700;color:var(--ink);}
.voice-user span{display:block;font-size:12px;color:#8a94a8;}

/* ============ guard ============ */
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.guard-item{
  padding:22px 20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.guard-item:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d5dbe9;}
.guard-item h3{margin-top:14px;font-size:15px;font-weight:700;color:var(--ink);}
.guard-item p{margin-top:6px;font-size:13.2px;color:var(--muted);line-height:1.74;}

/* ============ faq ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:rgba(230,185,107,.55);box-shadow:var(--shadow);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:17px 22px;
  font-size:15px;font-weight:700;color:var(--ink);
  cursor:pointer;list-style:none;
  min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  flex:0 0 24px;
  width:24px;height:24px;line-height:22px;text-align:center;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--gold-deep);
  font-size:16px;font-weight:700;
  transition:transform .2s ease,background .2s ease;
}
.faq-item[open] summary::after{content:"−";background:rgba(230,185,107,.16);border-color:rgba(230,185,107,.5);}
.faq-item .faq-body{padding:0 22px 20px;font-size:13.8px;color:var(--muted);line-height:1.85;}

/* ============ cta form ============ */
.cta-wrap{
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
}
.cta-copy h2{font-size:clamp(23px,2.8vw,31px);font-weight:800;line-height:1.36;letter-spacing:-.3px;}
.cta-copy p{margin-top:14px;font-size:14.6px;color:rgba(255,255,255,.74);line-height:1.86;}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.cta-points li{
  padding:7px 14px;border-radius:999px;
  font-size:12.8px;color:rgba(255,255,255,.82);
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
}
.lead-form{
  padding:28px 26px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-lg);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:14px;}
.field label{font-size:12.8px;font-weight:600;color:rgba(255,255,255,.72);letter-spacing:.3px;}
.field input,.field select,.field textarea{
  width:100%;
  padding:11px 14px;
  min-height:44px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.2);
  background:rgba(11,18,32,.5);
  color:#fff;
  font-size:14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:88px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:rgba(255,255,255,.38);}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--gold);
  box-shadow:0 0 0 3px rgba(230,185,107,.18);
  outline:none;
}
.field select option{color:#111;background:#fff;}
.lead-form .btn{width:100%;}
.form-note{margin-top:12px;font-size:12.4px;color:rgba(255,255,255,.55);line-height:1.7;}
.form-ok{
  display:none;
  margin-top:14px;
  padding:12px 16px;
  border-radius:10px;
  background:rgba(230,185,107,.14);
  border:1px solid rgba(230,185,107,.42);
  color:var(--gold-soft);
  font-size:13.4px;
  line-height:1.7;
}
.form-ok.is-show{display:block;}

/* ============ footer ============ */
.site-footer{background:var(--ink-2);color:rgba(255,255,255,.7);padding:56px 0 26px;}
.footer-top{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-brand{display:flex;align-items:center;gap:11px;}
.footer-brand .brand-mark{box-shadow:inset 0 0 0 1px rgba(230,185,107,.32);}
.footer-brand strong{font-size:16px;font-weight:800;color:#fff;}
.footer-desc{margin-top:14px;font-size:13.4px;line-height:1.85;color:rgba(255,255,255,.6);max-width:330px;}
.footer-col h3{font-size:14px;font-weight:700;color:#fff;letter-spacing:.6px;margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:9px;}
.footer-col a{font-size:13.4px;color:rgba(255,255,255,.64);transition:color .2s ease;}
.footer-col a:hover{color:var(--gold-soft);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  padding-top:22px;
  font-size:12.6px;color:rgba(255,255,255,.46);
}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:var(--gold-soft);}

/* ============ responsive ============ */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .level-panel{max-width:460px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .card-grid,.plan-grid,.channel-grid,.voice-grid,.pain-grid{grid-template-columns:repeat(2,1fr);}
  .scene-grid,.guard-grid,.ms-grid{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:1fr;}
  .cta-wrap{grid-template-columns:1fr;gap:32px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:860px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-panel{
    display:none;
    position:absolute;top:calc(100% + 8px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:10px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:14px;
    box-shadow:var(--shadow);
    margin-left:0;
  }
  .nav-panel.is-open{display:flex;}
  .nav-item{padding:11px 14px;font-size:15px;}
  .nav-cta{display:none;}
  .nav-shell{gap:10px;}
}
@media (max-width:768px){
  .section{padding:54px 0;}
  .section--ink{padding:58px 0;}
  .hero{padding:52px 0 60px;}
  .hero-lead{font-size:14.5px;}
  .hero-actions .btn{flex:1 1 auto;}
  .stat-grid,.card-grid,.plan-grid,.channel-grid,.voice-grid,.pain-grid,.scene-grid,.guard-grid,.ms-grid{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr;}
  .brand-text em{display:none;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .nav-shell{padding:9px 10px 9px 12px;border-radius:14px;}
  .brand-text strong{font-size:14.5px;}
  .hero h1{font-size:27px;}
  .hero-sub{font-size:15px;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;}
  .level-panel{padding:22px 18px;}
  .news-item{padding:16px 16px;}
  .lead-form{padding:22px 18px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --ink:#0b1220;
  --ink-2:#141e30;
  --ink-3:#1d2a40;
  --gold:#e6b96b;
  --gold-soft:#f7e2ba;
  --gold-deep:#c2944a;
  --bg:#f5f6fa;
  --surface:#ffffff;
  --surface-2:#eceff6;
  --text:#1b2434;
  --muted:#616e86;
  --line:#e3e7f0;
  --radius:14px;
  --radius-sm:10px;
  --radius-lg:20px;
  --shadow-sm:0 2px 8px rgba(15,23,42,.05);
  --shadow:0 12px 30px rgba(15,23,42,.09);
  --shadow-lg:0 22px 48px rgba(15,23,42,.16);
  --max:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15.5px;
  line-height:1.78;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:3px solid rgba(230,185,107,.75);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 22px;}

/* ============ header / nav ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(245,246,250,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(227,231,240,.9);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(15,23,42,.10);}
.nav-shell{
  position:relative;
  display:flex;align-items:center;gap:18px;
  margin:12px 0;
  padding:10px 14px 10px 18px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:var(--shadow-sm);
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(140deg,var(--ink-2),var(--ink));
  color:var(--gold);
  font-weight:800;font-size:17px;
  box-shadow:inset 0 0 0 1px rgba(230,185,107,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:.2px;color:var(--ink);}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--muted);letter-spacing:.3px;}
.nav-panel{
  display:flex;align-items:center;gap:4px;
  margin-left:auto;
  padding:5px;
  background:var(--surface-2);
  border-radius:13px;
}
.nav-item{
  display:inline-flex;align-items:center;
  padding:8px 15px;
  border-radius:9px;
  font-size:14.5px;font-weight:500;
  color:var(--muted);
  transition:background .2s ease,color .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.nav-item:hover{background:rgba(255,255,255,.75);color:var(--ink);}
.nav-item.is-active{
  background:var(--surface);color:var(--ink);font-weight:700;
  box-shadow:0 2px 6px rgba(15,23,42,.09);
}
.nav-cta{flex-shrink:0;}
.nav-toggle{
  display:none;
  margin-left:auto;
  padding:9px 14px;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--surface-2);
  font-size:14px;font-weight:600;
  cursor:pointer;
  min-height:40px;
}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;
  border:none;border-radius:10px;
  font-size:15px;font-weight:700;letter-spacing:.3px;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  min-height:44px;
  white-space:nowrap;
}
.btn-gold{background:var(--gold);color:#2b1e07;box-shadow:0 8px 20px rgba(230,185,107,.28);}
.btn-gold:hover{background:#f0c67f;transform:translateY(-2px);box-shadow:0 12px 26px rgba(230,185,107,.36);}
.btn-gold:active{transform:translateY(0);}
.btn-primary{background:var(--ink);color:#fff;}
.btn-primary:hover{background:#16223a;transform:translateY(-2px);box-shadow:0 12px 26px rgba(11,18,32,.24);}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.36);}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.6);transform:translateY(-2px);}
.btn-outline{background:transparent;color:var(--ink);border:1px solid var(--line);}
.btn-outline:hover{border-color:var(--gold-deep);color:var(--gold-deep);transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;min-height:40px;}

/* ============ article hero ============ */
.article-hero{
  position:relative;
  overflow:hidden;
  background:var(--ink);
  color:#fff;
  padding:56px 0 62px;
}
.article-hero .hero-bg{position:absolute;inset:0;z-index:0;}
.article-hero .hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.40;}
.article-hero .hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(820px 420px at 10% 12%,rgba(230,185,107,.22),transparent 64%),
    linear-gradient(105deg,rgba(11,18,32,.95) 10%,rgba(11,18,32,.80) 54%,rgba(11,18,32,.64) 100%);
}
.article-hero-inner{position:relative;z-index:1;max-width:820px;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);}
.crumbs a{color:rgba(255,255,255,.82);transition:color .2s ease;}
.crumbs a:hover{color:var(--gold-soft);}
.crumbs span[aria-current]{color:rgba(255,255,255,.55);}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  margin-top:22px;
  padding:7px 15px;
  border-radius:999px;
  background:rgba(230,185,107,.13);
  border:1px solid rgba(230,185,107,.42);
  color:var(--gold-soft);
  font-size:13px;font-weight:600;letter-spacing:.6px;
}
.article-hero h1{
  margin-top:18px;
  font-size:clamp(27px,3.6vw,42px);
  line-height:1.28;
  font-weight:800;
  letter-spacing:-.3px;
}
.article-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.meta-chip{
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  color:rgba(255,255,255,.82);
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
}
.article-hero .hero-sub{
  margin-top:18px;
  font-size:16px;
  line-height:1.85;
  color:rgba(255,255,255,.80);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}

/* ============ sections ============ */
.section{padding:70px 0;}
.section--alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section--ink{background:var(--ink);color:#fff;padding:74px 0;}
.section-head{max-width:760px;margin-bottom:38px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:1.6px;
  color:var(--gold-deep);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--gold);}
.section-head h2{
  margin-top:12px;
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.36;
  font-weight:800;
  color:var(--ink);
  letter-spacing:-.2px;
}
.section-head p{margin-top:12px;font-size:15px;color:var(--muted);line-height:1.85;}
.section--ink .section-head h2{color:#fff;}
.section--ink .section-head p{color:rgba(255,255,255,.72);}
.section--ink .eyebrow{color:var(--gold-soft);}

/* ============ spec panel ============ */
.spec-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
  margin-bottom:26px;
}
.spec-tile{
  padding:20px 18px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.spec-tile:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(230,185,107,.55);}
.spec-tile .num{font-size:26px;font-weight:800;color:var(--ink);line-height:1.2;}
.spec-tile .num small{font-size:13px;font-weight:600;color:var(--muted);margin-left:4px;}
.spec-tile .lab{margin-top:6px;font-size:13px;color:var(--muted);}
.spec-tile .bar{margin-top:12px;height:5px;border-radius:999px;background:var(--surface-2);overflow:hidden;}
.spec-tile .bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--gold),var(--gold-deep));}

.table-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
}
.table-card table{width:100%;border-collapse:collapse;font-size:14.5px;}
.table-card th,.table-card td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line);}
.table-card thead th{
  background:var(--surface-2);
  font-size:13px;
  letter-spacing:.6px;
  color:var(--muted);
  font-weight:700;
}
.table-card tbody tr:last-child td{border-bottom:none;}
.table-card tbody tr{transition:background .2s ease;}
.table-card tbody tr:hover{background:#fafbfe;}
.table-card td strong{color:var(--ink);}
.table-card td:first-child{font-weight:700;color:var(--ink);white-space:nowrap;}

/* ============ article body ============ */
.article-body{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  padding:38px 40px 34px;
}
.prose{font-size:16px;line-height:1.9;color:var(--text);}
.prose h2{
  font-size:22px;line-height:1.42;font-weight:800;color:var(--ink);
  margin:34px 0 14px;padding-left:14px;border-left:4px solid var(--gold);
}
.prose h2:first-child{margin-top:0;}
.prose h3{font-size:18px;line-height:1.5;font-weight:700;color:var(--ink);margin:26px 0 10px;}
.prose h4{font-size:16px;font-weight:700;color:var(--ink-3);margin:20px 0 8px;}
.prose p{margin:0 0 16px;}
.prose ul,.prose ol{margin:0 0 18px;padding-left:22px;list-style:revert;}
.prose li{margin-bottom:8px;}
.prose img{border-radius:var(--radius);margin:22px 0;box-shadow:var(--shadow-sm);}
.prose a{color:var(--gold-deep);text-decoration:underline;text-underline-offset:3px;}
.prose a:hover{color:var(--ink);}
.prose blockquote{
  margin:22px 0;padding:16px 20px;
  background:#faf7f0;
  border-left:4px solid var(--gold);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:#4a4130;font-size:15px;
}
.prose table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14.5px;}
.prose th,.prose td{padding:10px 14px;border:1px solid var(--line);text-align:left;}
.prose th{background:var(--surface-2);color:var(--ink);}
.prose strong{color:var(--ink);font-weight:700;}
.notfound{text-align:center;padding:26px 0 10px;}
.notfound h2{font-size:22px;color:var(--ink);font-weight:800;}
.notfound p{margin:12px auto 24px;max-width:520px;color:var(--muted);}

/* ============ download bar ============ */
.dl-bar{background:var(--ink-2);color:#fff;}
.dl-bar-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:24px 0;
  flex-wrap:wrap;
}
.dl-bar-text strong{display:block;font-size:17px;font-weight:800;letter-spacing:.2px;}
.dl-bar-text span{display:block;margin-top:4px;font-size:13.5px;color:rgba(255,255,255,.66);}
.dl-bar-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ version cards ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.info-card{
  display:flex;flex-direction:column;
  padding:24px 22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(230,185,107,.6);}
.icon-badge{
  width:42px;height:42px;border-radius:12px;
  display:grid;place-items:center;
  background:rgba(230,185,107,.14);
  border:1px solid rgba(230,185,107,.38);
  color:var(--gold-deep);
  margin-bottom:16px;
}
.icon-badge svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.info-card h3{font-size:16.5px;font-weight:800;color:var(--ink);line-height:1.5;}
.info-card p{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.8;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  padding:4px 11px;border-radius:999px;
  font-size:12.5px;font-weight:600;
  color:var(--ink-3);
  background:var(--surface-2);
  border:1px solid var(--line);
}

/* ============ tips list ============ */
.tips-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.tip-item{
  display:flex;gap:16px;
  padding:22px 22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tip-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(230,185,107,.55);}
.tip-num{
  flex:0 0 40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:var(--ink);color:var(--gold);
  font-weight:800;font-size:15px;
}
.tip-item h3{font-size:16px;font-weight:800;color:var(--ink);line-height:1.5;}
.tip-item p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.8;}

/* ============ faq ============ */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:rgba(230,185,107,.62);box-shadow:var(--shadow);}
.faq-item summary{
  list-style:none;cursor:pointer;
  padding:18px 22px;
  font-size:15.5px;font-weight:700;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 auto;
  font-size:20px;font-weight:600;color:var(--gold-deep);
  transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−";}
.faq-item .faq-body{padding:0 22px 20px;font-size:14.5px;line-height:1.88;color:var(--muted);}

/* ============ download form ============ */
.dl-form-wrap{
  display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
}
.dl-form-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  padding:30px;
}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:700;color:var(--ink);margin-bottom:8px;}
.field select,.field input{
  width:100%;
  padding:12px 14px;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--surface-2);
  font-size:14.5px;
  min-height:46px;
  transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.field select:focus,.field input:focus{
  background:var(--surface);
  border-color:var(--gold-deep);
  box-shadow:0 0 0 3px rgba(230,185,107,.20);
  outline:none;
}
.dl-form-card .btn{width:100%;}
.form-note{margin-top:14px;font-size:13px;color:var(--muted);line-height:1.7;}
.form-note.is-done{color:var(--gold-deep);font-weight:700;}

/* ============ footer ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.74);padding:56px 0 26px;margin-top:0;}
.footer-top{
  display:grid;
  grid-template-columns:1.5fr .75fr .75fr;
  gap:40px;
  padding-bottom:36px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:flex;align-items:center;gap:11px;}
.footer-brand strong{font-size:16px;font-weight:800;color:#fff;letter-spacing:.2px;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:420px;}
.footer-col h3{font-size:14px;font-weight:700;color:#fff;letter-spacing:.6px;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);transition:color .2s ease;}
.footer-col a:hover{color:var(--gold-soft);}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding-top:22px;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ responsive ============ */
@media (max-width:1024px){
  .spec-grid{grid-template-columns:repeat(2,1fr);}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .dl-form-wrap{grid-template-columns:1fr;gap:28px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
  .article-body{padding:30px 28px;}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex;align-items:center;}
  .nav-panel{
    display:none;
    position:absolute;top:calc(100% + 8px);left:0;right:0;
    flex-direction:column;align-items:stretch;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:16px;
    box-shadow:var(--shadow);
    padding:10px;
    margin-left:0;
    z-index:80;
  }
  .nav-panel.is-open{display:flex;}
  .nav-item{padding:12px 14px;border-radius:10px;}
  .nav-cta{display:none;}
  .tags-grid,.tips-grid{grid-template-columns:1fr;}
}
@media (max-width:768px){
  .section{padding:54px 0;}
  .article-hero{padding:42px 0 48px;}
  .article-body{padding:24px 20px;border-radius:var(--radius);}
  .card-grid{grid-template-columns:1fr;}
  .spec-grid{grid-template-columns:1fr 1fr;}
  .table-card{overflow-x:auto;}
  .table-card table{min-width:520px;}
  .footer-top{grid-template-columns:1fr;}
  .dl-bar-inner{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .brand-text em{display:none;}
  .brand-text strong{font-size:14.5px;}
  .hero-actions .btn{width:100%;}
  .spec-grid{grid-template-columns:1fr;}
  .article-meta{gap:8px;}
  .meta-chip{font-size:12px;padding:5px 11px;}
  .prose{font-size:15.5px;}
  .prose h2{font-size:19px;}
  .dl-form-card{padding:22px 18px;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category1 */
:root{
 --ink:#0b1220;
 --ink-2:#141e30;
 --ink-3:#1d2a40;
 --gold:#e6b96b;
 --gold-soft:#f7e2ba;
 --gold-deep:#c2944a;
 --bg:#f5f6fa;
 --surface:#ffffff;
 --surface-2:#eceff6;
 --text:#1b2434;
 --muted:#616e86;
 --line:#e3e7f0;
 --radius:14px;
 --radius-sm:10px;
 --radius-lg:20px;
 --shadow-sm:0 2px 8px rgba(15,23,42,.05);
 --shadow:0 12px 30px rgba(15,23,42,.09);
 --shadow-lg:0 22px 48px rgba(15,23,42,.16);
 --max:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:15.5px;
 line-height:1.78;
 color:var(--text);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:3px solid rgba(230,185,107,.65);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 22px;}

/* ============ header / nav ============ */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(245,246,250,.86);
 backdrop-filter:blur(12px);
 -webkit-backdrop-filter:blur(12px);
 border-bottom:1px solid rgba(227,231,240,.9);
 transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(15,23,42,.10);}
.nav-shell{
 position:relative;
 display:flex;align-items:center;gap:18px;
 margin:12px 0;
 padding:10px 14px 10px 18px;
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:18px;
 box-shadow:var(--shadow-sm);
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
 width:38px;height:38px;flex:0 0 38px;
 display:grid;place-items:center;
 border-radius:12px;
 background:linear-gradient(140deg,var(--ink-2),var(--ink));
 color:var(--gold);
 font-weight:800;font-size:17px;
 box-shadow:inset 0 0 0 1px rgba(230,185,107,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:.2px;color:var(--ink);}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--muted);letter-spacing:.3px;}
.nav-panel{
 display:flex;align-items:center;gap:4px;
 margin-left:auto;
 padding:5px;
 background:var(--surface-2);
 border-radius:13px;
}
.nav-item{
 display:inline-flex;align-items:center;
 padding:8px 15px;
 border-radius:9px;
 font-size:14.5px;font-weight:500;
 color:var(--muted);
 transition:background .2s ease,color .2s ease,box-shadow .2s ease;
 white-space:nowrap;
}
.nav-item:hover{background:rgba(255,255,255,.75);color:var(--ink);}
.nav-item.is-active{
 background:var(--surface);color:var(--ink);font-weight:700;
 box-shadow:0 2px 6px rgba(15,23,42,.09);
}
.nav-cta{flex-shrink:0;}
.nav-toggle{
 display:none;
 margin-left:auto;
 padding:9px 14px;
 border:1px solid var(--line);
 border-radius:10px;
 background:var(--surface-2);
 font-size:14px;font-weight:600;
 cursor:pointer;
 min-height:40px;
}

/* ============ buttons ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:12px 24px;
 border:none;border-radius:10px;
 font-size:15px;font-weight:700;letter-spacing:.3px;
 cursor:pointer;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
 min-height:44px;
 white-space:nowrap;
}
.btn-gold{background:var(--gold);color:#2b1e07;box-shadow:0 8px 20px rgba(230,185,107,.28);}
.btn-gold:hover{background:#f0c67f;transform:translateY(-2px);box-shadow:0 12px 26px rgba(230,185,107,.36);}
.btn-gold:active{transform:translateY(0);}
.btn-primary{background:var(--ink);color:#fff;}
.btn-primary:hover{background:#16223a;transform:translateY(-2px);box-shadow:0 12px 26px rgba(11,18,32,.24);}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.36);}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.62);transform:translateY(-2px);}
.btn-outline{background:transparent;color:var(--ink);border:1px solid var(--line);}
.btn-outline:hover{border-color:var(--gold-deep);color:var(--gold-deep);transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;min-height:40px;}

/* ============ hero ============ */
.page-hero{
 position:relative;overflow:hidden;
 background:var(--ink);color:#fff;
 padding:64px 0 104px;
}
.hero-bg{position:absolute;inset:0;z-index:0;}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.40;}
.hero-bg::after{
 content:"";position:absolute;inset:0;
 background:
  radial-gradient(900px 460px at 14% 16%,rgba(230,185,107,.20),transparent 62%),
  linear-gradient(104deg,rgba(11,18,32,.95) 10%,rgba(11,18,32,.80) 54%,rgba(11,18,32,.62) 100%);
}
.hero-inner{
 position:relative;z-index:1;
 display:grid;grid-template-columns:1.18fr .82fr;gap:48px;align-items:center;
}
.kicker{
 display:inline-flex;align-items:center;gap:9px;
 padding:7px 15px;border-radius:999px;
 background:rgba(230,185,107,.13);
 border:1px solid rgba(230,185,107,.42);
 color:var(--gold-soft);
 font-size:13px;font-weight:600;letter-spacing:.5px;
}
.page-hero h1{
 margin-top:20px;
 font-size:clamp(29px,3.6vw,42px);
 line-height:1.28;font-weight:800;letter-spacing:-.4px;
}
.hero-sub{margin-top:15px;font-size:16.5px;color:rgba(255,255,255,.9);font-weight:600;}
.hero-lead{margin-top:14px;max-width:620px;font-size:15px;line-height:1.88;color:rgba(255,255,255,.76);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-tags li{
 padding:6px 14px;border-radius:999px;font-size:13px;
 color:rgba(255,255,255,.82);
 background:rgba(255,255,255,.08);
 border:1px solid rgba(255,255,255,.16);
}
.hero-card{
 background:rgba(255,255,255,.07);
 border:1px solid rgba(255,255,255,.16);
 border-radius:var(--radius-lg);
 padding:16px;
 box-shadow:0 20px 46px rgba(0,0,0,.28);
 backdrop-filter:blur(4px);
}
.hero-card figure{margin:0;border-radius:14px;overflow:hidden;}
.hero-card figure img{width:100%;height:196px;object-fit:cover;}
.hero-card-body{padding:16px 6px 4px;}
.hero-card-body h2{font-size:15.5px;font-weight:700;color:#fff;letter-spacing:.2px;}
.hero-card-body p{margin-top:6px;font-size:13.4px;line-height:1.75;color:rgba(255,255,255,.72);}
.hero-spec{margin-top:14px;display:grid;gap:8px;}
.hero-spec li{
 display:flex;align-items:center;justify-content:space-between;gap:10px;
 padding:8px 11px;border-radius:9px;
 background:rgba(255,255,255,.07);
 border:1px solid rgba(255,255,255,.11);
 font-size:13px;color:rgba(255,255,255,.78);
}
.hero-spec b{color:var(--gold-soft);font-weight:700;}

/* ============ metrics ============ */
.metrics-wrap{position:relative;z-index:5;margin-top:-52px;}
.metrics-grid{
 display:grid;grid-template-columns:repeat(4,1fr);
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius-lg);
 box-shadow:var(--shadow);
 overflow:hidden;
}
.metric{padding:22px 24px;border-right:1px solid var(--line);}
.metric:last-child{border-right:none;}
.metric-num{font-size:27px;font-weight:800;color:var(--ink);letter-spacing:-.5px;line-height:1.2;}
.metric-num span{font-size:14px;font-weight:700;color:var(--gold-deep);margin-left:3px;}
.metric-label{margin-top:5px;font-size:13.2px;color:var(--muted);}

/* ============ sections ============ */
.section{padding:68px 0;}
.section--alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section--ink{background:var(--ink);color:#fff;padding:72px 0;}
.section-head{max-width:760px;margin-bottom:38px;}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:12.6px;font-weight:700;letter-spacing:1px;
 color:var(--gold-deep);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--gold);border-radius:2px;}
.section-head h2{
 margin-top:12px;
 font-size:clamp(23px,2.5vw,31px);
 line-height:1.36;font-weight:800;letter-spacing:-.3px;color:var(--ink);
}
.section-head p{margin-top:12px;font-size:15px;color:var(--muted);line-height:1.85;}
.section--ink .section-head h2{color:#fff;}
.section--ink .section-head p{color:rgba(255,255,255,.74);}
.section--ink .eyebrow{color:var(--gold);}

/* ============ cards ============ */
.grid{display:grid;gap:20px;}
.grid-4{grid-template-columns:repeat(4,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
.card{
 display:flex;flex-direction:column;
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius);
 box-shadow:var(--shadow-sm);
 overflow:hidden;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d5dcec;}
.card-media{position:relative;overflow:hidden;}
.card-media img{width:100%;height:150px;object-fit:cover;transition:transform .3s ease;}
.card:hover .card-media img{transform:scale(1.04);}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:9px;flex:1;}
.card-body h3{font-size:16.5px;font-weight:800;color:var(--ink);letter-spacing:.1px;line-height:1.45;}
.card-body p{font-size:14.2px;color:var(--muted);line-height:1.8;}
.tag-row{display:flex;flex-wrap:wrap;gap:7px;margin-top:auto;padding-top:6px;}
.tag{
 display:inline-flex;align-items:center;
 padding:4px 10px;border-radius:999px;
 font-size:12.2px;font-weight:600;
 color:var(--gold-deep);
 background:rgba(230,185,107,.14);
 border:1px solid rgba(230,185,107,.34);
}
.tag--plain{color:var(--muted);background:var(--surface-2);border-color:var(--line);}
.icon-box{
 width:42px;height:42px;flex:0 0 42px;
 display:grid;place-items:center;
 border-radius:12px;
 background:var(--surface-2);
 color:var(--ink);
 border:1px solid var(--line);
}
.icon-box svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.card-head-icon{display:flex;align-items:center;gap:12px;margin-bottom:2px;}
.card-head-icon strong{font-size:15.6px;font-weight:800;color:var(--ink);}

/* ============ compare table ============ */
.table-wrap{
 overflow-x:auto;
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius);
 box-shadow:var(--shadow-sm);
 -webkit-overflow-scrolling:touch;
}
table.compare{width:100%;min-width:720px;border-collapse:collapse;font-size:14.3px;}
table.compare caption{
 text-align:left;padding:18px 20px 4px;
 font-size:14px;color:var(--muted);
}
table.compare th,table.compare td{
 padding:15px 20px;text-align:left;
 border-bottom:1px solid var(--line);
 vertical-align:top;
}
table.compare thead th{
 background:var(--surface-2);
 color:var(--ink);
 font-weight:800;font-size:13.6px;letter-spacing:.3px;
 white-space:nowrap;
}
table.compare tbody tr:last-child td{border-bottom:none;}
table.compare tbody tr:hover{background:#fafbfe;}
table.compare td strong{color:var(--ink);}
.ok{color:#1f7a4d;font-weight:700;}
.warn{color:#a9682a;font-weight:700;}

/* ============ timeline ============ */
.timeline{display:grid;gap:16px;}
.step{
 position:relative;
 display:grid;grid-template-columns:56px 1fr;gap:18px;
 padding:20px 22px;
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius);
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#d5dcec;}
.step-num{
 width:44px;height:44px;border-radius:12px;
 display:grid;place-items:center;
 background:linear-gradient(140deg,var(--ink-2),var(--ink));
 color:var(--gold);font-weight:800;font-size:15px;
 box-shadow:inset 0 0 0 1px rgba(230,185,107,.26);
}
.step-body h3{font-size:16px;font-weight:800;color:var(--ink);}
.step-body p{margin-top:6px;font-size:14.2px;color:var(--muted);line-height:1.8;}
.step-body .tag-row{padding-top:10px;}

/* ============ news list ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.news-card{
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius);
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#d5dcec;}
.news-card a{display:flex;flex-direction:column;gap:9px;padding:20px;}
.news-card h3{font-size:15.6px;font-weight:800;color:var(--ink);line-height:1.5;}
.news-card p{font-size:14px;color:var(--muted);line-height:1.78;}
.news-meta{
 display:flex;flex-wrap:wrap;align-items:center;gap:10px;
 margin-top:auto;padding-top:10px;
 font-size:12.6px;color:#8792a8;
 border-top:1px dashed var(--line);
}
.news-meta span{
 padding:3px 9px;border-radius:999px;
 background:var(--surface-2);color:var(--muted);font-weight:600;
}
.empty-state{
 padding:26px 22px;
 background:var(--surface);
 border:1px dashed #cfd6e6;
 border-radius:var(--radius);
 color:var(--muted);font-size:14.4px;
}

/* ============ guarantee ============ */
.guard-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.guard{
 display:flex;gap:15px;align-items:flex-start;
 padding:22px;
 background:rgba(255,255,255,.05);
 border:1px solid rgba(255,255,255,.14);
 border-radius:var(--radius);
 transition:transform .2s ease,border-color .2s ease,background .2s ease;
}
.guard:hover{transform:translateY(-3px);border-color:rgba(230,185,107,.46);background:rgba(255,255,255,.08);}
.guard .icon-box{background:rgba(230,185,107,.14);border-color:rgba(230,185,107,.34);color:var(--gold-soft);}
.guard h3{font-size:16px;font-weight:800;color:#fff;}
.guard p{margin-top:6px;font-size:14px;color:rgba(255,255,255,.74);line-height:1.8;}

/* ============ quick answers ============ */
.qa-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.qa{
 padding:22px;
 background:var(--surface);
 border:1px solid var(--line);
 border-left:3px solid var(--gold);
 border-radius:var(--radius-sm) var(--radius) var(--radius) var(--radius-sm);
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease;
}
.qa:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.qa h3{font-size:15.4px;font-weight:800;color:var(--ink);}
.qa p{margin-top:8px;font-size:14.1px;color:var(--muted);line-height:1.8;}

/* ============ faq ============ */
.faq-list{display:grid;gap:12px;max-width:900px;}
details.faq{
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius-sm);
 box-shadow:var(--shadow-sm);
 overflow:hidden;
 transition:border-color .2s ease,box-shadow .2s ease;
}
details.faq[open]{border-color:rgba(230,185,107,.55);box-shadow:var(--shadow);}
details.faq summary{
 display:flex;align-items:center;justify-content:space-between;gap:16px;
 padding:17px 20px;
 cursor:pointer;list-style:none;
 font-size:15.4px;font-weight:700;color:var(--ink);
 min-height:44px;
}
details.faq summary::-webkit-details-marker{display:none;}
details.faq summary::after{
 content:"+";
 flex:0 0 auto;
 width:26px;height:26px;border-radius:8px;
 display:grid;place-items:center;
 background:var(--surface-2);color:var(--gold-deep);
 font-size:17px;font-weight:700;line-height:1;
 transition:transform .2s ease,background .2s ease;
}
details.faq[open] summary::after{content:"–";background:rgba(230,185,107,.2);}
.faq-body{padding:0 20px 20px;font-size:14.3px;color:var(--muted);line-height:1.85;}

/* ============ form ============ */
.form-shell{
 display:grid;grid-template-columns:.92fr 1.08fr;gap:34px;
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius-lg);
 box-shadow:var(--shadow);
 padding:32px;
}
.form-intro h2{font-size:clamp(21px,2.3vw,26px);font-weight:800;color:var(--ink);line-height:1.4;}
.form-intro p{margin-top:12px;font-size:14.6px;color:var(--muted);line-height:1.85;}
.form-points{margin-top:20px;display:grid;gap:10px;}
.form-points li{
 display:flex;gap:10px;align-items:flex-start;
 font-size:14px;color:var(--text);
 padding:10px 12px;
 background:var(--surface-2);
 border-radius:10px;
 border:1px solid var(--line);
}
.form-points li svg{width:17px;height:17px;flex:0 0 17px;margin-top:4px;stroke:var(--gold-deep);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.dl-form{display:grid;gap:14px;}
.field{display:grid;gap:7px;}
.field label{font-size:13.6px;font-weight:700;color:var(--ink);letter-spacing:.2px;}
.field input,.field select,.field textarea{
 width:100%;
 padding:12px 14px;
 border:1px solid var(--line);
 border-radius:10px;
 background:#fbfcfe;
 font-size:14.4px;
 transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
 min-height:44px;
}
.field textarea{min-height:96px;resize:vertical;}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#cfd7e8;}
.field input:focus,.field select:focus,.field textarea:focus{
 outline:none;border-color:var(--gold-deep);background:#fff;
 box-shadow:0 0 0 3px rgba(230,185,107,.22);
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.form-hint{font-size:12.8px;color:#8792a8;line-height:1.7;}
.form-msg{
 display:none;
 margin-top:4px;
 padding:11px 14px;
 border-radius:10px;
 background:rgba(31,122,77,.09);
 border:1px solid rgba(31,122,77,.28);
 color:#1f7a4d;font-size:13.6px;font-weight:600;
}
.form-msg.is-visible{display:block;}

/* ============ footer ============ */
.site-footer{
 background:var(--ink);
 color:rgba(255,255,255,.76);
 padding:56px 0 26px;
 margin-top:0;
}
.footer-top{
 display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:36px;
 padding-bottom:32px;
 border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:flex;align-items:center;gap:11px;}
.footer-brand strong{font-size:16.5px;font-weight:800;color:#fff;letter-spacing:.2px;}
.footer-desc{margin-top:14px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:400px;}
.footer-col h3{font-size:14.4px;font-weight:700;color:#fff;letter-spacing:.4px;margin-bottom:14px;}
.footer-col ul{display:grid;gap:9px;}
.footer-col a{font-size:13.8px;color:rgba(255,255,255,.66);transition:color .2s ease,padding-left .2s ease;}
.footer-col a:hover{color:var(--gold-soft);padding-left:3px;}
.footer-bottom{
 display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
 padding-top:22px;
 font-size:12.8px;color:rgba(255,255,255,.5);line-height:1.7;
}

/* ============ responsive ============ */
@media (max-width:1024px){
 .hero-inner{grid-template-columns:1fr;gap:32px;}
 .hero-card{max-width:520px;}
 .grid-4{grid-template-columns:repeat(2,1fr);}
 .grid-3{grid-template-columns:repeat(2,1fr);}
 .news-grid{grid-template-columns:repeat(2,1fr);}
 .qa-grid{grid-template-columns:1fr;}
 .form-shell{grid-template-columns:1fr;padding:26px;}
 .footer-top{grid-template-columns:1fr 1fr;}
 .metrics-grid{grid-template-columns:repeat(2,1fr);}
 .metric:nth-child(2){border-right:none;}
 .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line);}
}
@media (max-width:900px){
 .nav-toggle{display:inline-flex;align-items:center;}
 .nav-panel{
  display:none;
  position:absolute;left:0;right:0;top:calc(100% + 10px);
  flex-direction:column;align-items:stretch;
  margin-left:0;padding:10px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:14px;
  box-shadow:var(--shadow);
  z-index:80;
 }
 .nav-panel.is-open{display:flex;}
 .nav-item{padding:12px 14px;justify-content:flex-start;}
 .nav-cta{display:none;}
}
@media (max-width:768px){
 .container{padding:0 16px;}
 .section{padding:52px 0;}
 .section--ink{padding:54px 0;}
 .page-hero{padding:44px 0 92px;}
 .hero-card figure img{height:170px;}
 .grid-4,.grid-3,.grid-2{grid-template-columns:1fr;}
 .news-grid{grid-template-columns:1fr;}
 .guard-list{grid-template-columns:1fr;}
 .step{grid-template-columns:44px 1fr;gap:14px;padding:18px;}
 .step-num{width:40px;height:40px;font-size:14px;}
 .footer-top{grid-template-columns:1fr;gap:26px;}
 .metrics-wrap{margin-top:-40px;}
 .metric{padding:18px;}
 .field-row{grid-template-columns:1fr;}
 .hero-actions .btn{flex:1 1 auto;}
}
@media (max-width:520px){
 .brand-text em{display:none;}
 .brand-text strong{font-size:14.6px;}
 .page-hero h1{font-size:26px;}
 .hero-sub{font-size:15px;}
 .metrics-grid{grid-template-columns:1fr;}
 .metric{border-right:none;border-bottom:1px solid var(--line);}
 .metric:last-child{border-bottom:none;}
 .form-shell{padding:20px;}
 .card-body{padding:16px;}
 .footer-bottom{flex-direction:column;}
}

/* roulang page: category2 */
:root{
  --ink:#0b1220;
  --ink-2:#141e30;
  --ink-3:#1d2a40;
  --gold:#e6b96b;
  --gold-soft:#f7e2ba;
  --gold-deep:#c2944a;
  --bg:#f5f6fa;
  --surface:#ffffff;
  --surface-2:#eceff6;
  --text:#1b2434;
  --muted:#616e86;
  --line:#e3e7f0;
  --radius:14px;
  --radius-sm:10px;
  --radius-lg:20px;
  --shadow-sm:0 2px 8px rgba(15,23,42,.05);
  --shadow:0 12px 30px rgba(15,23,42,.09);
  --shadow-lg:0 22px 48px rgba(15,23,42,.16);
  --max:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15.5px;
  line-height:1.78;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
p{margin:0;}
h1,h2,h3,h4{margin:0;line-height:1.32;letter-spacing:-.2px;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--gold-deep);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 22px;}

/* ============ header / nav ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(245,246,250,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(227,231,240,.9);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(15,23,42,.10);}
.nav-shell{
  position:relative;
  display:flex;align-items:center;gap:18px;
  margin:12px 0;
  padding:10px 14px 10px 18px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:var(--shadow-sm);
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(140deg,var(--ink-2),var(--ink));
  color:var(--gold);
  font-weight:800;font-size:17px;
  box-shadow:inset 0 0 0 1px rgba(230,185,107,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:.2px;color:var(--ink);}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--muted);letter-spacing:.3px;}
.nav-panel{
  display:flex;align-items:center;gap:4px;
  margin-left:auto;
  padding:5px;
  background:var(--surface-2);
  border-radius:13px;
}
.nav-item{
  display:inline-flex;align-items:center;
  padding:8px 15px;
  border-radius:9px;
  font-size:14.5px;font-weight:500;
  color:var(--muted);
  transition:background .2s ease,color .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.nav-item:hover{background:rgba(255,255,255,.75);color:var(--ink);}
.nav-item.is-active{
  background:var(--surface);color:var(--ink);font-weight:700;
  box-shadow:0 2px 6px rgba(15,23,42,.09);
}
.nav-cta{flex-shrink:0;}
.nav-toggle{
  display:none;
  margin-left:auto;
  padding:9px 14px;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--surface-2);
  font-size:14px;font-weight:600;
  cursor:pointer;
  min-height:40px;
}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;
  border:none;border-radius:10px;
  font-size:15px;font-weight:700;letter-spacing:.3px;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  min-height:44px;
  white-space:nowrap;
}
.btn-gold{background:var(--gold);color:#2b1e07;box-shadow:0 8px 20px rgba(230,185,107,.28);}
.btn-gold:hover{background:#f0c67f;transform:translateY(-2px);box-shadow:0 12px 26px rgba(230,185,107,.36);}
.btn-gold:active{transform:translateY(0);}
.btn-primary{background:var(--ink);color:#fff;}
.btn-primary:hover{background:#16223a;transform:translateY(-2px);box-shadow:0 12px 26px rgba(11,18,32,.24);}
.btn-outline{background:transparent;color:var(--ink);border:1px solid var(--line);}
.btn-outline:hover{border-color:var(--gold-deep);color:var(--gold-deep);transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;min-height:40px;}

/* ============ hero (斜切色块) ============ */
.hero-cut{
  position:relative;overflow:hidden;
  background:var(--ink);color:#fff;
  padding:74px 0 92px;
  clip-path:polygon(0 0,100% 0,100% 93%,0 100%);
}
.hero-cut .hero-bg{position:absolute;inset:0;z-index:0;}
.hero-cut .hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.34;}
.hero-cut .hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(104deg,rgba(11,18,32,.96) 8%,rgba(11,18,32,.82) 50%,rgba(11,18,32,.52) 100%);
}
.hero-cut::before{
  content:"";position:absolute;z-index:1;
  top:-40%;left:-18%;width:66%;height:180%;
  background:linear-gradient(150deg,rgba(230,185,107,.20),rgba(230,185,107,0) 72%);
  transform:skewX(-13deg);
  pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.35fr .8fr;gap:48px;align-items:center;
}
.vip-badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 15px;border-radius:999px;
  background:rgba(230,185,107,.13);
  border:1px solid rgba(230,185,107,.42);
  color:var(--gold-soft);
  font-size:13px;font-weight:600;letter-spacing:.6px;
}
.hero-cut h1{
  margin-top:20px;
  font-size:clamp(29px,3.9vw,43px);
  line-height:1.28;font-weight:800;letter-spacing:-.5px;
}
.hero-sub{margin-top:16px;font-size:16.5px;font-weight:500;color:rgba(255,255,255,.92);}
.hero-lead{margin-top:14px;max-width:660px;font-size:15px;line-height:1.88;color:rgba(255,255,255,.76);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-tags li{
  padding:6px 14px;border-radius:999px;
  font-size:13px;color:rgba(255,255,255,.82);
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
}
.hero-panel{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-lg);
  padding:22px 22px 20px;
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
}
.hero-panel h2{font-size:15px;font-weight:700;color:var(--gold-soft);letter-spacing:.5px;}
.hero-panel ol{margin-top:14px;}
.hero-panel li{
  display:flex;gap:11px;align-items:flex-start;
  padding:11px 0;
  font-size:13.8px;color:rgba(255,255,255,.84);
  border-bottom:1px dashed rgba(255,255,255,.14);
}
.hero-panel li:last-child{border-bottom:none;padding-bottom:0;}
.hero-panel li span{
  flex:0 0 22px;height:22px;border-radius:7px;
  display:grid;place-items:center;
  background:rgba(230,185,107,.18);
  color:var(--gold-soft);
  font-size:12px;font-weight:700;
}

/* ============ sections ============ */
.section{padding:72px 0;}
.section--alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:38px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:1.4px;
  color:var(--gold-deep);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--gold);}
.section-head h2{
  margin-top:12px;
  font-size:clamp(23px,2.6vw,31px);
  font-weight:800;color:var(--ink);
}
.section-head p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--muted);}

/* ============ 指标看板 ============ */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.stat-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px 22px;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d7dded;}
.stat-num{
  display:block;
  font-size:30px;font-weight:800;color:var(--ink);
  letter-spacing:-.6px;line-height:1.1;
}
.stat-num small{font-size:14px;font-weight:700;color:var(--gold-deep);margin-left:4px;}
.stat-card h3{margin-top:10px;font-size:15px;font-weight:700;color:var(--ink-3);}
.stat-card p{margin-top:8px;font-size:13.8px;line-height:1.75;color:var(--muted);}

/* ============ 玩法矩阵 ============ */
.matrix-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.matrix-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 24px 22px;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.matrix-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d5dcec;}
.matrix-icon{
  width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;
  background:var(--surface-2);
  color:var(--ink-2);
  border:1px solid var(--line);
}
.matrix-icon svg{width:22px;height:22px;}
.matrix-card h3{margin-top:16px;font-size:17px;font-weight:700;color:var(--ink);}
.matrix-card p{margin-top:9px;font-size:14.2px;line-height:1.8;color:var(--muted);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 11px;border-radius:999px;
  font-size:12.2px;font-weight:600;
  background:rgba(230,185,107,.16);
  color:#8a6520;
  border:1px solid rgba(230,185,107,.36);
}
.tag--line{background:var(--surface-2);color:var(--muted);border-color:var(--line);}

/* ============ 对比 ============ */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.compare-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 24px;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.compare-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#d7dded;}
.compare-card.is-steady{border-top:4px solid var(--gold);}
.compare-card.is-aggressive{border-top:4px solid var(--ink-3);}
.compare-card h3{font-size:18px;font-weight:800;color:var(--ink);}
.compare-card .compare-desc{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.8;}
.compare-rows{margin-top:18px;}
.compare-row{
  display:flex;justify-content:space-between;gap:16px;
  padding:11px 0;
  border-bottom:1px dashed var(--line);
  font-size:14.2px;
}
.compare-row:last-child{border-bottom:none;}
.compare-row dt{color:var(--muted);flex:0 0 auto;}
.compare-row dd{margin:0;font-weight:700;color:var(--ink-3);text-align:right;}

/* ============ 里程碑 ============ */
.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;position:relative;}
.step-card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px 24px 24px;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d5dcec;}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:var(--ink);color:var(--gold);
  font-size:14px;font-weight:800;
}
.step-card h3{margin-top:16px;font-size:16.5px;font-weight:700;color:var(--ink);}
.step-card .step-when{
  display:block;margin-top:6px;
  font-size:12.6px;font-weight:700;color:var(--gold-deep);letter-spacing:.6px;
}
.step-card p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--muted);}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.news-card{
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  min-height:100%;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d5dcec;}
.news-card h3{font-size:16px;font-weight:700;color:var(--ink);line-height:1.5;}
.news-card:hover h3{color:var(--gold-deep);}
.news-card p{
  margin-top:10px;font-size:14px;line-height:1.78;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:16px;
  font-size:12.6px;color:var(--muted);
}
.news-meta span{
  padding:3px 10px;border-radius:999px;
  background:var(--surface-2);border:1px solid var(--line);
  font-weight:600;
}
.news-link{display:block;}
.news-empty{
  padding:34px 26px;
  background:var(--surface);
  border:1px dashed var(--line);
  border-radius:var(--radius);
  color:var(--muted);font-size:14.5px;text-align:center;
}

/* ============ 平台保障 ============ */
.assure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.assure-card{
  background:var(--surface-2);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px 22px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.assure-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm);background:var(--surface);}
.assure-card h3{font-size:15.5px;font-weight:700;color:var(--ink);margin-top:14px;}
.assure-card p{margin-top:8px;font-size:13.8px;line-height:1.78;color:var(--muted);}
.assure-icon{
  width:38px;height:38px;border-radius:11px;
  display:grid;place-items:center;
  background:var(--surface);border:1px solid var(--line);
  color:var(--gold-deep);
}
.assure-icon svg{width:20px;height:20px;}

/* ============ 快速解答 / 排查 ============ */
.quick-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.quick-item{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--surface);
  border:1px solid var(--line);
  border-left:4px solid var(--gold);
  border-radius:var(--radius-sm);
  padding:20px 22px;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease;
}
.quick-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.quick-item b{
  flex:0 0 26px;height:26px;border-radius:8px;
  display:grid;place-items:center;
  background:var(--surface-2);
  color:var(--ink-2);font-size:12.5px;font-weight:800;
}
.quick-item h3{font-size:15.5px;font-weight:700;color:var(--ink);}
.quick-item p{margin-top:6px;font-size:14px;line-height:1.78;color:var(--muted);}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:rgba(230,185,107,.55);box-shadow:var(--shadow);}
.faq-item summary{
  display:flex;align-items:center;gap:12px;
  padding:17px 22px;
  font-size:15.5px;font-weight:700;color:var(--ink);
  cursor:pointer;list-style:none;
  min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";flex:0 0 8px;width:8px;height:8px;border-radius:50%;
  background:var(--gold);transition:transform .2s ease;
}
.faq-item[open] summary::before{transform:scale(1.35);}
.faq-item .faq-body{padding:0 22px 20px 42px;font-size:14.4px;line-height:1.85;color:var(--muted);}

/* ============ 转化表单 ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--ink);color:#fff;
  padding:44px 40px;
  box-shadow:var(--shadow);
}
.cta-band .cta-bg{position:absolute;inset:0;z-index:0;}
.cta-band .cta-bg img{width:100%;height:100%;object-fit:cover;opacity:.22;}
.cta-band .cta-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,18,32,.95),rgba(11,18,32,.72));
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;}
.cta-inner h2{font-size:clamp(22px,2.4vw,29px);font-weight:800;}
.cta-inner p{margin-top:14px;font-size:14.6px;line-height:1.85;color:rgba(255,255,255,.78);}
.cta-points{margin-top:20px;display:grid;gap:10px;}
.cta-points li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:rgba(255,255,255,.84);
}
.cta-points li::before{
  content:"";flex:0 0 6px;width:6px;height:6px;margin-top:9px;border-radius:50%;
  background:var(--gold);
}
.form-card{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius);
  padding:24px;
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;font-weight:600;color:rgba(255,255,255,.8);margin-bottom:6px;letter-spacing:.3px;}
.field input,.field select{
  width:100%;
  padding:11px 14px;
  min-height:44px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.9);
  color:var(--ink);
  font-size:14.5px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--gold);
  box-shadow:0 0 0 3px rgba(230,185,107,.28);
}
.form-card .btn{width:100%;margin-top:6px;}
.form-tip{
  margin-top:12px;font-size:12.8px;line-height:1.7;color:rgba(255,255,255,.66);
}
.form-msg{
  display:none;margin-top:12px;padding:11px 14px;border-radius:10px;
  background:rgba(230,185,107,.16);
  border:1px solid rgba(230,185,107,.46);
  color:var(--gold-soft);font-size:13.4px;line-height:1.7;
}
.form-msg.is-visible{display:block;}

/* ============ footer ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.74);padding:56px 0 28px;margin-top:0;}
.footer-top{
  display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:38px;
  padding-bottom:34px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:flex;align-items:center;gap:11px;}
.footer-brand strong{font-size:16px;font-weight:800;color:#fff;letter-spacing:.2px;}
.footer-desc{margin-top:14px;font-size:13.8px;line-height:1.85;color:rgba(255,255,255,.62);max-width:420px;}
.footer-col h3{font-size:14.5px;font-weight:700;color:#fff;letter-spacing:.4px;margin-bottom:14px;}
.footer-col ul{display:grid;gap:9px;}
.footer-col a{
  font-size:13.8px;color:rgba(255,255,255,.66);
  transition:color .2s ease,padding-left .2s ease;
}
.footer-col a:hover{color:var(--gold);padding-left:4px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding-top:22px;
  font-size:12.8px;color:rgba(255,255,255,.48);
}

/* ============ responsive ============ */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:32px;}
  .hero-panel{max-width:520px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .matrix-grid{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .assure-grid{grid-template-columns:repeat(2,1fr);}
  .timeline{grid-template-columns:1fr;}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-top > div:first-child{grid-column:1 / -1;}
}
@media (max-width:960px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-panel{
    display:none;
    position:absolute;
    top:calc(100% + 10px);left:0;right:0;
    flex-direction:column;align-items:stretch;
    margin-left:0;padding:10px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:14px;
    box-shadow:var(--shadow);
    z-index:80;
  }
  .nav-panel.is-open{display:flex;}
  .nav-item{padding:12px 14px;font-size:15px;}
  .nav-cta{margin-left:0;}
}
@media (max-width:768px){
  body{font-size:15px;}
  .section{padding:56px 0;}
  .hero-cut{padding:56px 0 72px;clip-path:polygon(0 0,100% 0,100% 96%,0 100%);}
  .stat-grid,.matrix-grid,.news-grid,.assure-grid,.compare-grid,.quick-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px 24px;}
  .footer-top{grid-template-columns:1fr;}
  .brand-text em{display:none;}
  .nav-shell{padding:9px 12px;gap:10px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .hero-cut h1{font-size:26px;}
  .hero-sub{font-size:15.4px;}
  .hero-lead{font-size:14.4px;}
  .hero-actions .btn{width:100%;}
  .stat-num{font-size:26px;}
  .faq-item summary{padding:15px 16px;font-size:14.8px;}
  .faq-item .faq-body{padding:0 16px 16px 34px;}
  .footer-bottom{flex-direction:column;}
  .form-card{padding:18px;}
  .nav-cta{display:none;}
}

/* roulang page: category3 */
:root{
 --ink:#0b1220;
 --ink-2:#141e30;
 --ink-3:#1d2a40;
 --gold:#e6b96b;
 --gold-soft:#f7e2ba;
 --gold-deep:#c2944a;
 --bg:#f5f6fa;
 --surface:#ffffff;
 --surface-2:#eceff6;
 --text:#1b2434;
 --muted:#616e86;
 --line:#e3e7f0;
 --radius:14px;
 --radius-sm:10px;
 --radius-lg:20px;
 --shadow-sm:0 2px 8px rgba(15,23,42,.05);
 --shadow:0 12px 30px rgba(15,23,42,.09);
 --shadow-lg:0 22px 48px rgba(15,23,42,.16);
 --max:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:15.5px;
 line-height:1.78;
 color:var(--text);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(230,185,107,.75);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 22px;}

/* ============ header / nav ============ */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(245,246,250,.86);
 backdrop-filter:blur(12px);
 -webkit-backdrop-filter:blur(12px);
 border-bottom:1px solid rgba(227,231,240,.9);
 transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(15,23,42,.10);}
.nav-shell{
 position:relative;
 display:flex;align-items:center;gap:18px;
 margin:12px 0;
 padding:10px 14px 10px 18px;
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:18px;
 box-shadow:var(--shadow-sm);
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
 width:38px;height:38px;flex:0 0 38px;
 display:grid;place-items:center;
 border-radius:12px;
 background:linear-gradient(140deg,var(--ink-2),var(--ink));
 color:var(--gold);
 font-weight:800;font-size:17px;
 box-shadow:inset 0 0 0 1px rgba(230,185,107,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:.2px;color:var(--ink);}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--muted);letter-spacing:.3px;}
.nav-panel{
 display:flex;align-items:center;gap:4px;
 margin-left:auto;
 padding:5px;
 background:var(--surface-2);
 border-radius:13px;
}
.nav-item{
 display:inline-flex;align-items:center;
 padding:8px 15px;
 border-radius:9px;
 font-size:14.5px;font-weight:500;
 color:var(--muted);
 transition:background .2s ease,color .2s ease,box-shadow .2s ease;
 white-space:nowrap;
}
.nav-item:hover{background:rgba(255,255,255,.75);color:var(--ink);}
.nav-item.is-active{
 background:var(--surface);color:var(--ink);font-weight:700;
 box-shadow:0 2px 6px rgba(15,23,42,.09);
}
.nav-cta{flex-shrink:0;}
.nav-toggle{
 display:none;
 margin-left:auto;
 padding:9px 14px;
 border:1px solid var(--line);
 border-radius:10px;
 background:var(--surface-2);
 font-size:14px;font-weight:600;
 cursor:pointer;
 min-height:40px;
}

/* ============ buttons ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:12px 24px;
 border:none;border-radius:10px;
 font-size:15px;font-weight:700;letter-spacing:.3px;
 cursor:pointer;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
 min-height:44px;
 white-space:nowrap;
}
.btn-gold{background:var(--gold);color:#2b1e07;box-shadow:0 8px 20px rgba(230,185,107,.28);}
.btn-gold:hover{background:#f0c67f;transform:translateY(-2px);box-shadow:0 12px 26px rgba(230,185,107,.36);}
.btn-gold:active{transform:translateY(0);}
.btn-primary{background:var(--ink);color:#fff;}
.btn-primary:hover{background:#16223a;transform:translateY(-2px);box-shadow:0 12px 26px rgba(11,18,32,.24);}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.36);}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.6);transform:translateY(-2px);}
.btn-outline{background:transparent;color:var(--ink);border:1px solid var(--line);}
.btn-outline:hover{border-color:var(--gold-deep);color:var(--gold-deep);transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;min-height:40px;}

/* ============ hero ============ */
.hero{
 position:relative;overflow:hidden;
 background:var(--ink);color:#fff;
 padding:68px 0 76px;
}
.hero-bg{position:absolute;inset:0;z-index:0;}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.42;}
.hero-bg::after{
 content:"";position:absolute;inset:0;
 background:
 radial-gradient(900px 460px at 12% 18%,rgba(230,185,107,.20),transparent 62%),
 linear-gradient(105deg,rgba(11,18,32,.94) 12%,rgba(11,18,32,.78) 52%,rgba(11,18,32,.62) 100%);
}
.hero-inner{
 position:relative;z-index:1;
 display:grid;
 grid-template-columns:5fr 7fr;
 gap:54px;
 align-items:center;
}
.vip-badge{
 display:inline-flex;align-items:center;gap:9px;
 padding:7px 15px;
 border-radius:999px;
 background:rgba(230,185,107,.13);
 border:1px solid rgba(230,185,107,.42);
 color:var(--gold-soft);
 font-size:13px;font-weight:600;letter-spacing:.6px;
}
.hero h1{
 margin-top:20px;
 font-size:clamp(28px,3.6vw,42px);
 line-height:1.28;
 font-weight:800;
 letter-spacing:-.4px;
}
.hero-sub{
 margin-top:16px;
 font-size:16.5px;
 color:rgba(255,255,255,.92);
 font-weight:600;
}
.hero-lead{
 margin-top:14px;
 max-width:620px;
 font-size:15px;
 line-height:1.88;
 color:rgba(255,255,255,.76);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-kpis{
 display:flex;flex-wrap:wrap;gap:14px 34px;
 margin-top:32px;
 padding-top:24px;
 border-top:1px solid rgba(255,255,255,.14);
}
.hero-kpis li{display:flex;flex-direction:column;gap:2px;}
.hero-kpis b{font-size:24px;font-weight:800;color:var(--gold-soft);letter-spacing:.5px;}
.hero-kpis span{font-size:12.5px;color:rgba(255,255,255,.62);letter-spacing:.6px;}

/* hero 右侧斜向错位大图 */
.hero-media{
 position:relative;
 transform:translate(16px,-18px);
}
.hero-media-main{
 position:relative;
 border-radius:var(--radius-lg);
 overflow:hidden;
 border:1px solid rgba(255,255,255,.16);
 box-shadow:0 30px 60px rgba(0,0,0,.45);
 aspect-ratio:16/11;
}
.hero-media-main img{width:100%;height:100%;object-fit:cover;}
.hero-media-main::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(160deg,rgba(11,18,32,.05),rgba(11,18,32,.55));
}
.hero-chip{
 position:absolute;z-index:2;
 padding:12px 16px;
 border-radius:12px;
 background:rgba(255,255,255,.94);
 color:var(--ink);
 box-shadow:var(--shadow-lg);
 border:1px solid rgba(255,255,255,.7);
 min-width:150px;
}
.hero-chip b{display:block;font-size:15px;font-weight:800;letter-spacing:.3px;}
.hero-chip span{font-size:12px;color:var(--muted);}
.hero-chip--tl{left:-16px;top:22px;}
.hero-chip--br{right:-10px;bottom:26px;}

/* ============ sections ============ */
.section{padding:72px 0;}
.section--alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section--ink{background:var(--ink);color:#fff;padding:76px 0;}
.section-head{max-width:760px;margin-bottom:38px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 padding:5px 13px;
 border-radius:999px;
 background:rgba(230,185,107,.16);
 color:var(--gold-deep);
 font-size:12.5px;font-weight:700;letter-spacing:1px;
}
.section--ink .eyebrow{background:rgba(230,185,107,.14);color:var(--gold-soft);}
.section-title{
 margin-top:14px;
 font-size:clamp(23px,2.6vw,31px);
 font-weight:800;line-height:1.34;
 letter-spacing:-.2px;
 color:var(--ink);
}
.section--ink .section-title{color:#fff;}
.section-desc{margin-top:12px;color:var(--muted);font-size:14.8px;line-height:1.85;}
.section--ink .section-desc{color:rgba(255,255,255,.7);}
.rule{display:inline-block;width:38px;height:4px;border-radius:4px;background:var(--gold);}

/* ============ 指标看板 ============ */
.metric-grid{
 display:grid;
 grid-template-columns:repeat(4,1fr);
 gap:20px;
}
.metric-card{
 position:relative;
 padding:26px 22px;
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius);
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.metric-card::before{
 content:"";position:absolute;left:22px;top:0;width:34px;height:3px;border-radius:0 0 4px 4px;background:var(--gold);
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(230,185,107,.55);}
.metric-card b{display:block;font-size:31px;font-weight:800;line-height:1.2;color:var(--ink);letter-spacing:-.5px;}
.metric-card b em{font-style:normal;font-size:15px;font-weight:700;color:var(--gold-deep);margin-left:2px;}
.metric-card h3{margin-top:8px;font-size:14.6px;font-weight:700;color:var(--ink-2);}
.metric-card p{margin-top:6px;font-size:13.4px;color:var(--muted);line-height:1.75;}

/* ============ 机型矩阵 ============ */
.matrix-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.matrix-card{
 display:flex;gap:18px;
 padding:24px;
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius);
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.matrix-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(230,185,107,.5);}
.matrix-icon{
 flex:0 0 52px;height:52px;
 display:grid;place-items:center;
 border-radius:13px;
 background:linear-gradient(150deg,var(--ink-2),var(--ink));
 color:var(--gold);
}
.matrix-icon svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.matrix-card h3{font-size:16.5px;font-weight:800;color:var(--ink);}
.matrix-card p{margin-top:7px;font-size:14px;color:var(--muted);line-height:1.8;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:13px;}
.tag{
 display:inline-flex;align-items:center;
 padding:4px 11px;
 border-radius:999px;
 background:var(--surface-2);
 color:var(--ink-3);
 font-size:12.3px;font-weight:600;
 border:1px solid var(--line);
}
.tag--gold{background:rgba(230,185,107,.18);border-color:rgba(230,185,107,.42);color:#7a5c1f;}

/* ============ 对照表 ============ */
.compare-wrap{
 overflow-x:auto;
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius);
 box-shadow:var(--shadow-sm);
}
table.compare{width:100%;border-collapse:collapse;min-width:680px;font-size:14.2px;}
table.compare thead th{
 background:var(--ink);
 color:#fff;
 text-align:left;
 padding:15px 18px;
 font-weight:700;
 font-size:14px;
 letter-spacing:.4px;
 white-space:nowrap;
}
table.compare thead th:first-child{border-top-left-radius:var(--radius);}
table.compare thead th:last-child{border-top-right-radius:var(--radius);}
table.compare tbody td{
 padding:15px 18px;
 border-bottom:1px solid var(--line);
 color:var(--muted);
 vertical-align:top;
 line-height:1.75;
}
table.compare tbody tr:last-child td{border-bottom:none;}
table.compare tbody tr:hover td{background:#fafbfe;}
table.compare tbody td:first-child{font-weight:700;color:var(--ink);white-space:nowrap;}
.cell-good{color:#2f7d4f;font-weight:700;}
.cell-warn{color:#a76a1c;font-weight:700;}

/* ============ 流程时间线 ============ */
.timeline{
 display:grid;
 grid-template-columns:repeat(4,1fr);
 gap:20px;
 counter-reset:step;
}
.timeline-item{
 position:relative;
 padding:26px 22px 24px;
 background:rgba(255,255,255,.06);
 border:1px solid rgba(255,255,255,.14);
 border-radius:var(--radius);
 transition:transform .2s ease,background .2s ease,border-color .2s ease;
}
.timeline-item:hover{transform:translateY(-4px);background:rgba(255,255,255,.1);border-color:rgba(230,185,107,.5);}
.timeline-num{
 display:inline-grid;place-items:center;
 width:38px;height:38px;
 border-radius:11px;
 background:rgba(230,185,107,.18);
 border:1px solid rgba(230,185,107,.45);
 color:var(--gold-soft);
 font-size:15px;font-weight:800;
}
.timeline-item h3{margin-top:15px;font-size:16px;font-weight:700;color:#fff;}
.timeline-item p{margin-top:8px;font-size:13.6px;color:rgba(255,255,255,.68);line-height:1.8;}

/* ============ 资讯列表 ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.post-card{
 display:flex;flex-direction:column;
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius);
 overflow:hidden;
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(230,185,107,.5);}
.post-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1;}
.post-body h3{font-size:16px;font-weight:700;line-height:1.5;color:var(--ink);}
.post-body p{margin-top:9px;font-size:13.6px;color:var(--muted);line-height:1.78;flex:1;}
.post-meta{display:flex;align-items:center;gap:10px;margin-top:14px;font-size:12.4px;color:var(--muted);}
.post-meta time{color:var(--muted);}
.list-empty{
 padding:34px 24px;text-align:center;
 background:var(--surface);
 border:1px dashed var(--line);
 border-radius:var(--radius);
 color:var(--muted);font-size:14.5px;
}

/* ============ 保障 ============ */
.assure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.assure-card{
 padding:24px 20px;
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius);
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.assure-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(230,185,107,.5);}
.assure-card h3{margin-top:14px;font-size:15.6px;font-weight:800;color:var(--ink);}
.assure-card p{margin-top:8px;font-size:13.6px;color:var(--muted);line-height:1.78;}
.assure-ico{
 display:grid;place-items:center;
 width:46px;height:46px;
 border-radius:12px;
 background:rgba(230,185,107,.16);
 border:1px solid rgba(230,185,107,.4);
 color:var(--gold-deep);
}
.assure-ico svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:920px;margin:0 auto;}
.faq-item{
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius);
 box-shadow:var(--shadow-sm);
 overflow:hidden;
 transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:rgba(230,185,107,.6);box-shadow:var(--shadow);}
.faq-item summary{
 display:flex;align-items:center;justify-content:space-between;gap:16px;
 padding:18px 22px;
 font-size:15.4px;font-weight:700;color:var(--ink);
 cursor:pointer;
 list-style:none;
 min-height:56px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"+";
 flex:0 0 26px;
 display:grid;place-items:center;
 width:26px;height:26px;
 border-radius:8px;
 background:var(--surface-2);
 color:var(--gold-deep);
 font-size:16px;font-weight:800;
 transition:transform .2s ease,background .2s ease;
}
.faq-item[open] summary::after{content:"–";background:rgba(230,185,107,.24);}
.faq-item .faq-answer{padding:0 22px 20px;font-size:14.2px;color:var(--muted);line-height:1.85;}

/* ============ 转化表单 ============ */
.cta-zone{
 background:var(--ink);
 color:#fff;
 padding:74px 0;
 position:relative;
 overflow:hidden;
}
.cta-zone::after{
 content:"";position:absolute;inset:auto -120px -180px auto;
 width:420px;height:420px;border-radius:50%;
 background:radial-gradient(circle,rgba(230,185,107,.22),transparent 68%);
}
.cta-inner{
 position:relative;z-index:1;
 display:grid;
 grid-template-columns:1.05fr .95fr;
 gap:46px;
 align-items:center;
}
.cta-inner h2{font-size:clamp(23px,2.6vw,31px);font-weight:800;line-height:1.34;letter-spacing:-.2px;}
.cta-inner p{margin-top:14px;font-size:14.8px;color:rgba(255,255,255,.74);line-height:1.85;}
.cta-points{margin-top:20px;display:grid;gap:10px;}
.cta-points li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.82);}
.cta-points li::before{
 content:"";flex:0 0 7px;height:7px;margin-top:9px;border-radius:50%;background:var(--gold);
}
.cta-form{
 background:rgba(255,255,255,.96);
 color:var(--text);
 border-radius:var(--radius-lg);
 padding:28px 26px;
 box-shadow:var(--shadow-lg);
 border:1px solid rgba(255,255,255,.7);
}
.cta-form h3{font-size:17.5px;font-weight:800;color:var(--ink);}
.cta-form .form-tip{margin-top:6px;font-size:13px;color:var(--muted);}
.field{margin-top:16px;}
.field label{display:block;font-size:13.2px;font-weight:700;color:var(--ink-3);margin-bottom:7px;}
.field select,.field input{
 width:100%;
 padding:12px 14px;
 border-radius:var(--radius-sm);
 border:1px solid var(--line);
 background:var(--surface-2);
 font-size:14.5px;
 transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
 min-height:46px;
}
.field select:focus,.field input:focus{
 outline:none;
 border-color:var(--gold-deep);
 background:#fff;
 box-shadow:0 0 0 3px rgba(230,185,107,.24);
}
.cta-form .btn{width:100%;margin-top:20px;}
.form-note{margin-top:12px;font-size:12.4px;color:var(--muted);text-align:center;}
.form-feedback{
 display:none;
 margin-top:14px;
 padding:11px 14px;
 border-radius:var(--radius-sm);
 background:rgba(47,125,79,.1);
 border:1px solid rgba(47,125,79,.3);
 color:#2f7d4f;
 font-size:13.4px;font-weight:600;
}
.form-feedback.is-visible{display:block;}

/* ============ footer ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.74);padding:56px 0 26px;border-top:1px solid rgba(255,255,255,.1);}
.footer-top{
 display:grid;
 grid-template-columns:1.5fr 1fr 1fr;
 gap:38px;
 padding-bottom:34px;
 border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:flex;align-items:center;gap:11px;}
.footer-brand strong{font-size:16.5px;font-weight:800;color:#fff;}
.footer-desc{margin-top:14px;font-size:13.8px;line-height:1.85;color:rgba(255,255,255,.6);max-width:420px;}
.footer-col h3{font-size:14.5px;font-weight:800;color:#fff;letter-spacing:.4px;}
.footer-col ul{margin-top:14px;display:grid;gap:9px;}
.footer-col a{font-size:13.8px;color:rgba(255,255,255,.66);transition:color .2s ease,padding-left .2s ease;}
.footer-col a:hover{color:var(--gold-soft);padding-left:4px;}
.footer-bottom{
 display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
 padding-top:20px;
 font-size:12.8px;color:rgba(255,255,255,.46);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
 .hero-inner{grid-template-columns:1fr;gap:40px;}
 .hero-media{transform:none;max-width:620px;}
 .hero-chip--tl{left:10px;}
 .hero-chip--br{right:10px;}
 .metric-grid{grid-template-columns:repeat(2,1fr);}
 .timeline{grid-template-columns:repeat(2,1fr);}
 .post-grid{grid-template-columns:repeat(2,1fr);}
 .assure-grid{grid-template-columns:repeat(2,1fr);}
 .cta-inner{grid-template-columns:1fr;gap:32px;}
 .footer-top{grid-template-columns:1fr 1fr;}
}
@media (max-width:860px){
 .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
 .nav-shell{flex-wrap:wrap;}
 .nav-panel{
  display:none;
  order:5;
  width:100%;
  margin:8px 0 4px;
  flex-direction:column;
  align-items:stretch;
  gap:4px;
  padding:8px;
 }
 .nav-panel.is-open{display:flex;}
 .nav-item{justify-content:flex-start;padding:11px 14px;min-height:44px;}
 .nav-cta{display:none;}
 .matrix-grid{grid-template-columns:1fr;}
}
@media (max-width:768px){
 .section{padding:56px 0;}
 .section--ink{padding:58px 0;}
 .hero{padding:52px 0 58px;}
 .metric-grid{grid-template-columns:1fr 1fr;}
 .timeline{grid-template-columns:1fr;}
 .post-grid{grid-template-columns:1fr;}
 .hero-kpis{gap:16px 26px;}
}
@media (max-width:520px){
 .container{padding:0 16px;}
 .brand-text em{display:none;}
 .brand-text strong{font-size:14.6px;}
 .metric-grid{grid-template-columns:1fr;}
 .assure-grid{grid-template-columns:1fr;}
 .footer-top{grid-template-columns:1fr;}
 .hero-actions .btn{width:100%;}
 .cta-form{padding:22px 18px;}
 .matrix-card{flex-direction:column;gap:14px;}
 .hero-chip{position:static;margin-top:12px;width:100%;}
 .hero-media-main{aspect-ratio:4/3;}
}