/* roulang page: index */
:root{
  --bg:#07080d;
  --bg-soft:#0b0d15;
  --panel:#12141f;
  --panel-2:#181b28;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text:#eef0f7;
  --text-soft:#aeb5c6;
  --muted:#7d8497;
  --brand:#7c5cff;
  --brand-2:#00e5c4;
  --accent:#ff3d7f;
  --grad:linear-gradient(120deg,#7c5cff 0%,#00e5c4 100%);
  --grad-warm:linear-gradient(120deg,#ff3d7f 0%,#7c5cff 100%);
  --radius-xl:26px;
  --radius-lg:20px;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 24px 60px -28px rgba(0,0,0,.9);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(920px 540px at 10% -12%, rgba(124,92,255,.24), transparent 62%),
    radial-gradient(780px 500px at 90% 2%, rgba(0,229,196,.15), transparent 64%),
    radial-gradient(680px 460px at 50% 108%, rgba(255,61,127,.11), transparent 66%);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .25s ease, opacity .25s ease, border-color .25s ease;}
button,input,textarea,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;border-radius:8px;}
::selection{background:rgba(0,229,196,.32);color:#fff;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px;position:relative;z-index:1;}
.site-header,main,.site-footer{position:relative;z-index:2;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:999px;font-weight:600;font-size:15px;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
}
.btn-primary{background:var(--grad);color:#05131a;box-shadow:0 14px 34px -16px rgba(0,229,196,.85);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 44px -14px rgba(124,92,255,.9);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:rgba(255,255,255,.05);border-color:var(--line-strong);color:var(--text);}
.btn-ghost:hover{background:rgba(0,229,196,.09);border-color:rgba(0,229,196,.55);color:#fff;transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-lg{padding:15px 32px;font-size:16px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(8,9,14,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(124,92,255,.7),rgba(0,229,196,.7),transparent);
  opacity:.7;
}
.nav-wrap{display:flex;align-items:center;gap:22px;height:74px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;border-radius:13px;display:grid;place-items:center;
  background:var(--grad);color:#05131a;font-weight:800;font-size:19px;
  box-shadow:0 10px 26px -12px rgba(124,92,255,.95);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;font-weight:800;font-size:18px;letter-spacing:.4px;}
.brand-text em{font-style:normal;font-size:11px;font-weight:600;letter-spacing:2.6px;color:var(--brand-2);opacity:.85;}
.main-nav{display:flex;align-items:center;gap:6px;flex:1;}
.main-nav a{
  position:relative;padding:9px 15px;border-radius:999px;font-size:15px;color:var(--text-soft);font-weight:500;
}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.06);}
.main-nav a.active{color:#fff;background:rgba(124,92,255,.16);box-shadow:inset 0 0 0 1px rgba(124,92,255,.45);}
.main-nav a.active::after{
  content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;background:var(--grad);
  box-shadow:0 0 12px rgba(0,229,196,.9);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-search{
  display:flex;align-items:center;gap:9px;padding:8px 15px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  transition:border-color .25s ease,background .25s ease;
}
.nav-search:hover{border-color:var(--line-strong);}
.nav-search:focus-within{border-color:rgba(0,229,196,.55);background:rgba(0,229,196,.07);}
.nav-search i{color:var(--muted);font-size:13px;}
.nav-search input{width:132px;background:none;border:0;outline:none;font-size:14px;}
.nav-search input::placeholder{color:var(--muted);}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:4px;
  width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.06);
  border:1px solid var(--line);cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;margin:0 auto;border-radius:2px;background:var(--text);}

/* ---------- hero ---------- */
.hero{padding:76px 0 54px;text-align:center;}
.hero-inner{max-width:1000px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:8px 18px;border-radius:999px;font-size:13.5px;font-weight:600;color:#d8f8f1;
  background:rgba(0,229,196,.1);border:1px solid rgba(0,229,196,.35);
  box-shadow:0 0 26px -10px rgba(0,229,196,.8);
}
.hero-title{
  margin:26px 0 0;font-size:clamp(30px,5vw,56px);line-height:1.22;font-weight:800;letter-spacing:-.5px;
}
.grad-text{
  display:block;background:var(--grad);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.hero-sub{margin-top:16px;font-size:clamp(17px,2.3vw,22px);font-weight:600;color:var(--brand-2);}
.hero-desc{
  margin:20px auto 0;max-width:820px;color:var(--text-soft);font-size:16px;line-height:1.95;
}
.hero-points{
  display:flex;flex-wrap:wrap;justify-content:center;gap:12px 26px;margin:28px 0 0;
}
.hero-points li{display:flex;align-items:center;gap:9px;font-size:15px;color:var(--text);}
.hero-points i{color:var(--brand-2);font-size:15px;}
.hero-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:32px;}
.hero-trust{
  display:flex;flex-wrap:wrap;justify-content:center;gap:10px 22px;margin-top:30px;
  padding-top:24px;border-top:1px solid var(--line);
}
.hero-trust span{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);}
.hero-trust i{color:var(--brand);}

/* ---------- sections ---------- */
.section{padding:72px 0;}
.section--soft{background:linear-gradient(180deg,rgba(255,255,255,.022),rgba(255,255,255,0));border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:760px;margin-bottom:38px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:700;letter-spacing:1.2px;
  color:#cbbfff;background:rgba(124,92,255,.14);border:1px solid rgba(124,92,255,.4);
}
.tag.teal{color:#a8f6ea;background:rgba(0,229,196,.11);border-color:rgba(0,229,196,.36);}
.h2{margin:16px 0 0;font-size:clamp(23px,3.1vw,34px);line-height:1.34;font-weight:800;letter-spacing:-.2px;}
.sec-desc{margin-top:14px;color:var(--text-soft);font-size:15.5px;line-height:1.9;}

.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}

/* ---------- metrics ---------- */
.metrics-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;}
.metric{
  position:relative;padding:26px 22px;border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(124,92,255,.16),rgba(18,20,31,.9) 62%);
  border:1px solid var(--line);overflow:hidden;
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.metric:hover{transform:translateY(-4px);border-color:rgba(0,229,196,.42);box-shadow:var(--shadow);}
.metric::after{
  content:"";position:absolute;right:-30px;top:-30px;width:110px;height:110px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,229,196,.28),transparent 68%);
}
.metric-num{display:block;font-size:clamp(26px,3.4vw,38px);font-weight:800;letter-spacing:-1px;line-height:1.1;}
.metric-num span{font-size:15px;font-weight:700;margin-left:3px;color:var(--brand-2);}
.metric p{margin-top:8px;font-size:14px;color:var(--text-soft);}
.metric-tag{
  display:inline-block;margin-top:12px;font-style:normal;font-size:12px;font-weight:700;
  padding:3px 10px;border-radius:999px;color:#a8f6ea;background:rgba(0,229,196,.12);border:1px solid rgba(0,229,196,.3);
}

/* ---------- story ---------- */
.story{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center;}
.story-copy p{color:var(--text-soft);margin-top:16px;font-size:15.5px;line-height:1.95;}
.story-copy p strong{color:#fff;}
.story-panel{
  position:relative;padding:30px;border-radius:var(--radius-xl);
  background:linear-gradient(150deg,rgba(124,92,255,.22),rgba(0,229,196,.1) 55%,rgba(24,27,40,.95));
  border:1px solid var(--line-strong);box-shadow:var(--shadow);
}
.story-panel h3{font-size:19px;font-weight:800;}
.story-quote{margin-top:14px;color:var(--text-soft);font-size:15px;line-height:1.9;}
.story-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.badge{
  display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:999px;
  font-size:13px;font-weight:600;color:var(--text);
  background:rgba(255,255,255,.06);border:1px solid var(--line);
}
.badge i{color:var(--brand-2);font-size:12px;}
.story-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px;padding-top:22px;border-top:1px solid var(--line);}
.story-strip div strong{display:block;font-size:20px;font-weight:800;color:#fff;}
.story-strip div span{font-size:12.5px;color:var(--muted);}

/* ---------- category cards ---------- */
.cat-card{
  display:flex;flex-direction:column;gap:14px;padding:30px 26px;border-radius:var(--radius-xl);
  background:var(--panel);border:1px solid var(--line);position:relative;overflow:hidden;
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.cat-card::before{
  content:"";position:absolute;left:0;top:0;height:3px;width:100%;
  background:var(--grad);opacity:.65;transition:opacity .3s ease;
}
.cat-card:hover{transform:translateY(-6px);border-color:rgba(124,92,255,.5);box-shadow:var(--shadow);}
.cat-card:hover::before{opacity:1;}
.cat-no{font-size:12.5px;font-weight:800;letter-spacing:2px;color:var(--brand-2);}
.cat-card h3{font-size:21px;font-weight:800;}
.cat-card p{color:var(--text-soft);font-size:14.6px;line-height:1.85;}
.cat-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px;}
.cat-list span{font-size:12.5px;color:var(--text-soft);padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.05);border:1px solid var(--line);}
.cat-more{margin-top:6px;display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:14.5px;color:var(--brand-2);}
.cat-more:hover{gap:12px;color:#fff;}

/* ---------- works ---------- */
.work-card{
  border-radius:var(--radius-lg);background:var(--panel);border:1px solid var(--line);
  padding:14px;transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.work-card:hover{transform:translateY(-5px);border-color:rgba(0,229,196,.42);box-shadow:var(--shadow);}
.work-cover{
  position:relative;aspect-ratio:16/10;border-radius:13px;overflow:hidden;
  background:linear-gradient(135deg,#2a1d55,#0d2431);
}
.work-cover::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(120px 90px at 72% 22%,rgba(0,229,196,.35),transparent 70%);
}
.work-card:nth-child(2) .work-cover{background:linear-gradient(135deg,#3a1638,#131b33);}
.work-card:nth-child(3) .work-cover{background:linear-gradient(135deg,#0f2f3a,#251a4a);}
.work-card:nth-child(4) .work-cover{background:linear-gradient(135deg,#331a2c,#17213c);}
.work-card:nth-child(5) .work-cover{background:linear-gradient(135deg,#1b2450,#0f3130);}
.work-card:nth-child(6) .work-cover{background:linear-gradient(135deg,#281a4d,#332235);}
.work-cover b{
  position:absolute;left:14px;bottom:12px;z-index:2;font-size:13px;font-weight:800;letter-spacing:.5px;color:#fff;
}
.work-cover em{
  position:absolute;right:12px;top:12px;z-index:2;font-style:normal;font-size:11.5px;font-weight:700;
  padding:4px 10px;border-radius:999px;background:rgba(5,10,16,.7);border:1px solid var(--line-strong);color:#d6dbe8;
}
.work-body{padding:14px 6px 6px;}
.work-body h3{font-size:16.5px;font-weight:700;line-height:1.5;}
.work-body p{margin-top:8px;font-size:13.8px;color:var(--text-soft);line-height:1.8;}
.work-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.work-meta span{
  font-size:12px;font-weight:600;color:var(--text-soft);
  padding:4px 10px;border-radius:8px;background:rgba(255,255,255,.05);border:1px solid var(--line);
}
.work-meta span i{color:var(--brand-2);margin-right:4px;font-size:11px;}

/* ---------- benefit ---------- */
.benefit-card{
  padding:28px 24px;border-radius:var(--radius-lg);
  background:linear-gradient(170deg,rgba(124,92,255,.14),rgba(18,20,31,.92) 58%);
  border:1px solid var(--line);transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.benefit-card:hover{transform:translateY(-5px);border-color:rgba(124,92,255,.55);box-shadow:var(--shadow);}
.benefit-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-size:19px;
  background:rgba(0,229,196,.13);color:var(--brand-2);border:1px solid rgba(0,229,196,.32);
}
.benefit-card h3{margin-top:18px;font-size:18px;font-weight:800;}
.benefit-card p{margin-top:10px;font-size:14.4px;color:var(--text-soft);line-height:1.85;}

/* ---------- profile ---------- */
.profile-card{
  border-radius:var(--radius-xl);overflow:hidden;border:1px solid var(--line);background:var(--panel);
  transition:border-color .3s ease,box-shadow .3s ease;
}
.profile-card:hover{border-color:rgba(0,229,196,.42);box-shadow:var(--shadow);}
.profile-banner{
  height:118px;background:linear-gradient(120deg,#7c5cff,#00e5c4 60%,#ff3d7f);
  position:relative;
}
.profile-banner::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(220px 120px at 82% 10%,rgba(255,255,255,.35),transparent 70%);
}
.profile-inner{padding:0 24px 26px;margin-top:-38px;position:relative;z-index:2;}
.profile-avatar{
  width:76px;height:76px;border-radius:22px;display:grid;place-items:center;
  font-size:26px;font-weight:800;color:#05131a;background:var(--grad);
  border:3px solid var(--panel);box-shadow:0 14px 30px -14px rgba(0,0,0,.9);
}
.profile-inner h3{margin-top:14px;font-size:20px;font-weight:800;}
.profile-inner .profile-bio{margin-top:8px;font-size:14px;color:var(--text-soft);}
.profile-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:20px;}
.profile-stats div{
  text-align:center;padding:12px 8px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
}
.profile-stats strong{display:block;font-size:17px;font-weight:800;color:#fff;}
.profile-stats span{font-size:11.5px;color:var(--muted);}
.profile-works{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px;}
.profile-works div{
  aspect-ratio:1/1;border-radius:12px;position:relative;overflow:hidden;
  background:linear-gradient(140deg,#2a1d55,#0d2431);border:1px solid var(--line);
}
.profile-works div:nth-child(2){background:linear-gradient(140deg,#3a1638,#131b33);}
.profile-works div:nth-child(3){background:linear-gradient(140deg,#0f2f3a,#251a4a);}
.profile-works div span{
  position:absolute;left:9px;bottom:7px;font-size:11px;font-weight:700;color:#e7ebf5;
}
.profile-actions{display:flex;gap:12px;margin-top:20px;}

/* ---------- matrix ---------- */
.matrix-card{
  padding:26px 22px;border-radius:var(--radius-lg);background:var(--panel-2);
  border:1px solid var(--line);transition:transform .3s ease,border-color .3s ease,background .3s ease;
}
.matrix-card:hover{transform:translateY(-4px);border-color:rgba(0,229,196,.4);background:#1c1f2e;}
.matrix-card i{
  font-size:19px;width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:rgba(124,92,255,.16);color:#cbbfff;border:1px solid rgba(124,92,255,.36);
}
.matrix-card h3{margin-top:16px;font-size:17px;font-weight:800;}
.matrix-card p{margin-top:9px;font-size:14.2px;color:var(--text-soft);line-height:1.82;}

/* ---------- compare ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.compare-col{padding:28px 26px;border-radius:var(--radius-xl);border:1px solid var(--line);background:var(--panel);}
.compare-col.now{background:linear-gradient(170deg,rgba(0,229,196,.13),rgba(18,20,31,.95) 55%);border-color:rgba(0,229,196,.4);}
.compare-col old{background:var(--panel);}
.compare-col h3{font-size:18.5px;font-weight:800;display:flex;align-items:center;gap:10px;}
.compare-col h3 i{font-size:16px;}
.compare-col.now h3 i{color:var(--brand-2);}
.compare-col.old h3 i{color:var(--muted);}
.compare-list{margin-top:18px;display:flex;flex-direction:column;gap:13px;}
.compare-list li{display:flex;gap:11px;font-size:14.6px;color:var(--text-soft);line-height:1.8;}
.compare-col.now .compare-list i{color:var(--brand-2);margin-top:6px;font-size:12px;}
.compare-col.old .compare-list i{color:var(--muted);margin-top:6px;font-size:12px;}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:34px;}
.timeline::before{
  content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--brand),var(--brand-2),transparent);
  opacity:.6;
}
.timeline li{position:relative;padding:0 0 30px 0;}
.timeline li:last-child{padding-bottom:0;}
.timeline li::before{
  content:"";position:absolute;left:-31px;top:8px;width:12px;height:12px;border-radius:50%;
  background:var(--bg);border:2px solid var(--brand-2);
  box-shadow:0 0 14px rgba(0,229,196,.9);
}
.timeline h3{font-size:17px;font-weight:800;}
.timeline p{margin-top:8px;font-size:14.5px;color:var(--text-soft);line-height:1.85;}
.timeline em{font-style:normal;font-size:12.5px;font-weight:700;color:#cbbfff;letter-spacing:1.4px;}

/* ---------- news ---------- */
.news-list{display:flex;flex-direction:column;gap:14px;}
.news-item{
  display:flex;gap:20px;align-items:flex-start;padding:22px 24px;border-radius:var(--radius-lg);
  background:var(--panel);border:1px solid var(--line);
  transition:transform .28s ease,border-color .28s ease,background .28s ease;
}
.news-item:hover{transform:translateX(5px);border-color:rgba(124,92,255,.5);background:var(--panel-2);}
.news-date{
  flex-shrink:0;width:74px;font-size:12.5px;font-weight:700;color:var(--brand-2);letter-spacing:.6px;padding-top:3px;
}
.news-item h3{font-size:16.5px;font-weight:700;}
.news-item p{margin-top:7px;font-size:14.2px;color:var(--text-soft);line-height:1.8;}

/* ---------- guard ---------- */
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.guard-item{
  padding:26px 22px;border-radius:var(--radius-lg);background:var(--panel-2);
  border:1px solid var(--line);text-align:left;transition:border-color .3s ease,transform .3s ease;
}
.guard-item:hover{border-color:rgba(0,229,196,.42);transform:translateY(-4px);}
.guard-item i{font-size:22px;color:var(--brand-2);}
.guard-item h3{margin-top:14px;font-size:16.5px;font-weight:800;}
.guard-item p{margin-top:9px;font-size:14px;color:var(--text-soft);line-height:1.82;}

/* ---------- reviews ---------- */
.review-card{
  position:relative;padding:28px 24px;border-radius:var(--radius-lg);
  background:linear-gradient(168deg,rgba(255,61,127,.1),rgba(18,20,31,.94) 55%);
  border:1px solid var(--line);transition:transform .3s ease,border-color .3s ease;
}
.review-card:hover{transform:translateY(-5px);border-color:rgba(255,61,127,.45);}
.review-card .quote{font-size:15px;color:var(--text-soft);line-height:1.9;}
.review-user{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line);}
.review-avatar{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;font-weight:800;font-size:15px;
  color:#05131a;background:var(--grad-warm);
}
.review-user strong{display:block;font-size:14.5px;}
.review-user span{font-size:12.5px;color:var(--muted);}

/* ---------- faq ---------- */
.faq{display:flex;flex-direction:column;gap:12px;}
.faq details{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 22px;transition:border-color .28s ease,background .28s ease;
}
.faq details:hover{border-color:var(--line-strong);}
.faq details[open]{border-color:rgba(0,229,196,.42);background:var(--panel-2);}
.faq summary{
  cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;
  font-weight:700;font-size:16.5px;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"+";color:var(--brand-2);font-size:21px;font-weight:400;line-height:1;}
.faq details[open] summary::after{content:"–";}
.faq p{margin-top:12px;color:var(--text-soft);font-size:14.8px;line-height:1.9;}

/* ---------- join ---------- */
.join-panel{
  display:grid;grid-template-columns:1fr 1fr;gap:38px;align-items:center;
  padding:44px;border-radius:var(--radius-xl);
  background:linear-gradient(140deg,rgba(124,92,255,.24),rgba(0,229,196,.12) 55%,rgba(20,23,34,.96));
  border:1px solid var(--line-strong);box-shadow:var(--shadow);
}
.join-copy h2{font-size:clamp(22px,2.8vw,31px);font-weight:800;line-height:1.35;}
.join-copy p{margin-top:16px;color:var(--text-soft);font-size:15.2px;line-height:1.92;}
.join-copy ul{margin-top:20px;display:flex;flex-direction:column;gap:11px;}
.join-copy ul li{display:flex;gap:10px;font-size:14.6px;color:var(--text);}
.join-copy ul i{color:var(--brand-2);margin-top:6px;font-size:12px;}
.join-form{background:rgba(7,8,13,.55);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;}
.field{margin-bottom:15px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--text-soft);margin-bottom:7px;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 15px;border-radius:12px;background:rgba(255,255,255,.06);
  border:1px solid var(--line);outline:none;font-size:14.5px;
  transition:border-color .25s ease,background .25s ease;
}
.field textarea{resize:vertical;min-height:84px;}
.field input:focus,.field select:focus,.field textarea:focus{border-color:rgba(0,229,196,.6);background:rgba(0,229,196,.07);}
.field input::placeholder,.field textarea::placeholder{color:var(--muted);}
.join-form .btn{width:100%;margin-top:6px;}
.form-note{margin-top:12px;font-size:12.5px;color:var(--muted);line-height:1.7;}

/* ---------- footer ---------- */
.site-footer{
  margin-top:20px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.02),rgba(7,8,13,.9));
  padding:56px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{color:var(--text-soft);font-size:14.2px;line-height:1.86;max-width:330px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-soft);font-size:15px;
}
.footer-social a:hover{color:#05131a;background:var(--grad);border-color:transparent;transform:translateY(-2px);}
.footer-col h4{font-size:15px;font-weight:800;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-soft);}
.footer-col a:hover{color:var(--brand-2);}
.footer-bottom{
  margin-top:42px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--muted);
}
.footer-bottom a:hover{color:var(--brand-2);}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .metrics-grid{grid-template-columns:repeat(3,1fr);}
  .guard-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:980px){
  .nav-search{display:none;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:absolute;top:calc(100% + 10px);left:16px;right:16px;
    flex-direction:column;align-items:stretch;gap:4px;display:none;
    background:rgba(13,15,23,.99);border:1px solid var(--line-strong);
    border-radius:18px;padding:12px;box-shadow:var(--shadow);flex:none;
  }
  .main-nav.open{display:flex;}
  .main-nav a{padding:12px 15px;border-radius:12px;}
  .main-nav a.active::after{display:none;}
  .story{grid-template-columns:1fr;gap:26px;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .join-panel{grid-template-columns:1fr;gap:26px;padding:30px;}
}
@media (max-width:820px){
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .metrics-grid{grid-template-columns:repeat(2,1fr);}
  .compare{grid-template-columns:1fr;}
  .section{padding:58px 0;}
  .hero{padding:56px 0 40px;}
}
@media (max-width:620px){
  .grid-2,.grid-3,.grid-4,.guard-grid{grid-template-columns:1fr;}
  .metrics-grid{grid-template-columns:1fr 1fr;gap:12px;}
  .metric{padding:20px 16px;}
  .profile-stats{grid-template-columns:repeat(3,1fr);}
  .news-item{flex-direction:column;gap:8px;}
  .news-date{width:auto;}
  .hero-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .join-form{padding:20px;}
}
@media (max-width:420px){
  .brand-text{font-size:16px;}
  .metrics-grid{grid-template-columns:1fr;}
}

/* roulang page: category1 */
:root{
 --bg:#07080d;
 --bg-soft:#0b0d15;
 --panel:#12141f;
 --panel-2:#181b28;
 --line:rgba(255,255,255,.08);
 --line-strong:rgba(255,255,255,.16);
 --text:#eef0f7;
 --text-soft:#aeb5c6;
 --muted:#7d8497;
 --brand:#7c5cff;
 --brand-2:#00e5c4;
 --accent:#ff3d7f;
 --grad:linear-gradient(120deg,#7c5cff 0%,#00e5c4 100%);
 --grad-warm:linear-gradient(120deg,#ff3d7f 0%,#7c5cff 100%);
 --radius-xl:26px;
 --radius-lg:20px;
 --radius:14px;
 --radius-sm:10px;
 --shadow:0 24px 60px -28px rgba(0,0,0,.9);
 --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
 margin:0;
 background:var(--bg);
 color:var(--text);
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:16px;
 line-height:1.75;
 overflow-x:hidden;
}
body::before{
 content:"";
 position:fixed;
 inset:0;
 z-index:0;
 pointer-events:none;
 background:
 radial-gradient(920px 540px at 10% -12%, rgba(124,92,255,.24), transparent 62%),
 radial-gradient(780px 500px at 90% 2%, rgba(0,229,196,.15), transparent 64%),
 radial-gradient(680px 460px at 50% 108%, rgba(255,61,127,.11), transparent 66%);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .25s ease, opacity .25s ease, border-color .25s ease, background .25s ease, transform .25s ease;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,textarea,select{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px;position:relative;z-index:1;}
.site-header,main,.site-footer{position:relative;z-index:2;}
/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:13px 26px;border-radius:999px;font-weight:600;font-size:15px;
 border:1px solid transparent;cursor:pointer;white-space:nowrap;
 transition:transform .25s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
}
.btn-primary{background:var(--grad);color:#05131a;box-shadow:0 14px 34px -16px rgba(0,229,196,.85);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 44px -14px rgba(124,92,255,.9);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:rgba(255,255,255,.05);border-color:var(--line-strong);color:var(--text);}
.btn-ghost:hover{background:rgba(0,229,196,.09);border-color:rgba(0,229,196,.55);color:#fff;transform:translateY(-2px);}
.btn-warm{background:var(--grad-warm);color:#fff;box-shadow:0 14px 34px -18px rgba(255,61,127,.9);}
.btn-warm:hover{transform:translateY(-2px);box-shadow:0 20px 44px -14px rgba(255,61,127,.85);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-lg{padding:15px 32px;font-size:16px;}
.btn-block{width:100%;}
/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(8,9,14,.82);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
 border-bottom:1px solid var(--line);
}
.site-header::after{
 content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
 background:linear-gradient(90deg,transparent,rgba(124,92,255,.7),rgba(0,229,196,.7),transparent);
 opacity:.7;
}
.nav-wrap{display:flex;align-items:center;gap:22px;height:74px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
 width:40px;height:40px;border-radius:13px;display:grid;place-items:center;
 background:var(--grad);color:#05131a;font-weight:800;font-size:19px;
 box-shadow:0 10px 26px -12px rgba(124,92,255,.95);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;font-weight:800;font-size:18px;letter-spacing:.4px;}
.brand-text em{font-style:normal;font-size:11px;font-weight:600;letter-spacing:2.6px;color:var(--brand-2);opacity:.85;}
.main-nav{display:flex;align-items:center;gap:6px;flex:1;}
.main-nav a{
 position:relative;padding:9px 15px;border-radius:999px;font-size:15px;color:var(--text-soft);font-weight:500;
}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.06);}
.main-nav a.active{color:#fff;background:rgba(124,92,255,.16);box-shadow:inset 0 0 0 1px rgba(124,92,255,.45);}
.main-nav a.active::after{
 content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);
 width:22px;height:2px;border-radius:2px;background:var(--grad);
 box-shadow:0 0 12px rgba(0,229,196,.9);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-search{
 display:flex;align-items:center;gap:9px;padding:8px 15px;border-radius:999px;
 background:rgba(255,255,255,.06);border:1px solid var(--line);
 transition:border-color .25s ease,background .25s ease;
}
.nav-search:hover{border-color:var(--line-strong);}
.nav-search:focus-within{border-color:rgba(0,229,196,.55);background:rgba(0,229,196,.07);}
.nav-search i{color:var(--muted);font-size:13px;}
.nav-search input{width:132px;background:none;border:0;outline:none;font-size:14px;}
.nav-search input::placeholder{color:var(--muted);}
.nav-toggle{
 display:none;flex-direction:column;justify-content:center;gap:4px;
 width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.06);
 border:1px solid var(--line);cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;margin:0 auto;border-radius:2px;background:var(--text);}
/* ---------- page hero ---------- */
.page-hero{padding:70px 0 46px;position:relative;}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:46px;align-items:center;}
.hero-badge{
 display:inline-flex;align-items:center;gap:9px;
 padding:8px 18px;border-radius:999px;font-size:13.5px;font-weight:600;color:#d8f8f1;
 background:rgba(0,229,196,.1);border:1px solid rgba(0,229,196,.35);
 box-shadow:0 0 26px -10px rgba(0,229,196,.8);
}
.page-hero h1{
 margin:22px 0 0;font-size:clamp(28px,4vw,46px);line-height:1.25;font-weight:800;letter-spacing:-.5px;
}
.hero-lead{margin:18px 0 0;color:var(--text-soft);font-size:16.5px;line-height:1.95;max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-note{margin-top:18px;font-size:13.5px;color:var(--muted);display:flex;align-items:center;gap:9px;}
.hero-note i{color:var(--brand-2);}
/* 参数面板 */
.spec-panel{
 background:linear-gradient(160deg,rgba(24,27,40,.96),rgba(12,14,22,.96));
 border:1px solid var(--line-strong);
 border-radius:var(--radius-xl);
 padding:26px 26px 20px;
 box-shadow:var(--shadow);
 position:relative;
 overflow:hidden;
}
.spec-panel::before{
 content:"";position:absolute;inset:-40% 40% 60% -30%;
 background:radial-gradient(circle at 30% 30%,rgba(124,92,255,.32),transparent 68%);
 pointer-events:none;
}
.spec-panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;position:relative;}
.spec-panel-head h2{margin:0;font-size:16.5px;font-weight:700;letter-spacing:.3px;}
.spec-panel-head span{font-size:12px;color:var(--brand-2);letter-spacing:1.6px;text-transform:uppercase;}
.spec-list{margin-top:18px;display:flex;flex-direction:column;gap:2px;position:relative;}
.spec-row{
 display:flex;align-items:center;justify-content:space-between;gap:14px;
 padding:13px 4px;border-bottom:1px dashed var(--line);
}
.spec-row:last-child{border-bottom:0;}
.spec-row dt{display:flex;align-items:center;gap:10px;color:var(--text-soft);font-size:14px;}
.spec-row dt i{color:var(--brand);width:16px;text-align:center;}
.spec-row dd{margin:0;font-weight:700;font-size:15px;color:#fff;font-variant-numeric:tabular-nums;}
.spec-row dd em{font-style:normal;color:var(--brand-2);font-size:13px;margin-left:4px;}
/* 参数横条 */
.spec-strip{
 margin-top:44px;display:grid;grid-template-columns:repeat(4,1fr);gap:0;
 border:1px solid var(--line);border-radius:var(--radius-lg);
 background:rgba(255,255,255,.03);overflow:hidden;
}
.spec-strip li{padding:20px 22px;border-right:1px solid var(--line);}
.spec-strip li:last-child{border-right:0;}
.spec-strip b{display:block;font-size:22px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;line-height:1.3;}
.spec-strip span{font-size:13px;color:var(--muted);}
.spec-strip b i{font-style:normal;font-size:13px;color:var(--brand-2);margin-left:3px;}
/* ---------- section base ---------- */
.section{padding:74px 0;}
.section--soft{
 background:linear-gradient(180deg,rgba(18,20,31,.72),rgba(11,13,21,.28));
 border-top:1px solid var(--line);
 border-bottom:1px solid var(--line);
}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;flex-wrap:wrap;margin-bottom:40px;}
.section-head .head-copy{max-width:720px;}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:2.2px;
 color:var(--brand-2);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad);}
.section-title{margin:12px 0 0;font-size:clamp(22px,2.9vw,32px);line-height:1.35;font-weight:800;letter-spacing:-.3px;}
.section-desc{margin:14px 0 0;color:var(--text-soft);font-size:15.5px;line-height:1.9;}
/* ---------- metrics ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.metric-card{
 background:var(--panel);
 border:1px solid var(--line);
 border-radius:var(--radius-lg);
 padding:24px 22px;
 transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.metric-card:hover{transform:translateY(-4px);border-color:rgba(124,92,255,.45);box-shadow:0 26px 50px -30px rgba(124,92,255,.85);}
.metric-icon{
 width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
 background:rgba(124,92,255,.16);color:var(--brand-2);font-size:17px;margin-bottom:16px;
}
.metric-value{font-size:30px;font-weight:800;line-height:1.2;color:#fff;font-variant-numeric:tabular-nums;}
.metric-value small{font-size:15px;font-weight:600;color:var(--brand-2);margin-left:4px;}
.metric-label{margin-top:8px;font-size:14.5px;color:var(--text);font-weight:600;}
.metric-foot{margin-top:8px;font-size:13px;color:var(--muted);}
/* ---------- matrix ---------- */
.matrix-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.matrix-card{
 position:relative;
 background:linear-gradient(165deg,rgba(24,27,40,.95),rgba(12,14,22,.92));
 border:1px solid var(--line);
 border-radius:var(--radius-lg);
 padding:26px 24px;
 overflow:hidden;
 transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.matrix-card::after{
 content:"";position:absolute;left:0;top:0;height:3px;width:0;
 background:var(--grad);transition:width .35s ease;
}
.matrix-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 30px 56px -34px rgba(0,229,196,.75);}
.matrix-card:hover::after{width:100%;}
.matrix-card h3{margin:0 0 10px;font-size:18px;font-weight:700;display:flex;align-items:center;gap:10px;}
.matrix-card h3 i{color:var(--brand);font-size:16px;}
.matrix-card p{margin:0;color:var(--text-soft);font-size:14.5px;line-height:1.85;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.tag{
 display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;font-size:12.5px;
 color:var(--text-soft);background:rgba(255,255,255,.05);border:1px solid var(--line);
}
.tag--hot{color:#ffd9e7;background:rgba(255,61,127,.14);border-color:rgba(255,61,127,.4);}
.tag--cool{color:#c9fbf2;background:rgba(0,229,196,.12);border-color:rgba(0,229,196,.36);}
/* ---------- compare ---------- */
.compare-wrap{
 background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-xl);
 overflow:hidden;box-shadow:var(--shadow);
}
.compare-row{
 display:grid;grid-template-columns:1.3fr 1fr 1fr .9fr;align-items:center;gap:16px;
 padding:18px 26px;border-bottom:1px solid var(--line);
}
.compare-row:last-child{border-bottom:0;}
.compare-row.head{
 background:rgba(124,92,255,.12);font-size:13.5px;letter-spacing:1px;color:#dcd7ff;font-weight:700;
}
.compare-row .c-name{font-weight:600;font-size:15px;}
.compare-row .c-old{color:var(--muted);font-size:14.5px;font-variant-numeric:tabular-nums;}
.compare-row .c-new{color:#fff;font-weight:700;font-size:15px;font-variant-numeric:tabular-nums;}
.compare-row .c-cut{
 justify-self:start;
 font-size:13px;font-weight:700;color:#05131a;
 background:var(--grad);padding:4px 12px;border-radius:999px;
}
.compare-row:not(.head):hover{background:rgba(255,255,255,.03);}
/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:34px;}
.timeline::before{
 content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;
 background:linear-gradient(180deg,rgba(124,92,255,.9),rgba(0,229,196,.7),transparent);
}
.timeline-item{position:relative;padding:0 0 30px 0;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
 content:"";position:absolute;left:-31px;top:7px;width:14px;height:14px;border-radius:50%;
 background:var(--bg);border:2px solid var(--brand-2);
 box-shadow:0 0 0 4px rgba(0,229,196,.12);
}
.timeline-item h3{margin:0;font-size:17px;font-weight:700;}
.timeline-item .tl-time{font-size:12.5px;letter-spacing:1.6px;color:var(--brand-2);font-weight:700;}
.timeline-item p{margin:8px 0 0;color:var(--text-soft);font-size:14.5px;line-height:1.85;}
/* ---------- articles ---------- */
.article-list{display:grid;grid-template-columns:1.25fr 1fr;gap:22px;align-items:start;}
.article-feature{
 background:linear-gradient(160deg,rgba(24,27,40,.96),rgba(12,14,22,.94));
 border:1px solid var(--line);border-radius:var(--radius-xl);padding:30px;
 transition:border-color .3s ease,transform .3s ease;
}
.article-feature:hover{border-color:rgba(124,92,255,.5);transform:translateY(-4px);}
.article-feature h3{margin:14px 0 0;font-size:22px;line-height:1.45;font-weight:800;}
.article-feature p{margin:14px 0 0;color:var(--text-soft);font-size:14.8px;line-height:1.9;}
.article-meta{margin-top:20px;display:flex;flex-wrap:wrap;gap:16px;font-size:13px;color:var(--muted);}
.article-meta i{color:var(--brand);margin-right:6px;}
.article-side{display:flex;flex-direction:column;gap:14px;}
.article-item{
 display:flex;gap:16px;align-items:flex-start;
 background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
 padding:18px 20px;transition:border-color .3s ease,transform .3s ease,background .3s ease;
}
.article-item:hover{border-color:var(--line-strong);transform:translateX(4px);background:var(--panel-2);}
.article-item .idx{
 flex-shrink:0;width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
 background:rgba(0,229,196,.12);color:var(--brand-2);font-weight:800;font-size:14px;
}
.article-item h4{margin:0;font-size:15.5px;font-weight:700;line-height:1.55;}
.article-item span{display:block;margin-top:6px;font-size:13px;color:var(--muted);}
/* ---------- guard ---------- */
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.guard-card{
 border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;
 background:rgba(255,255,255,.02);
 transition:border-color .3s ease,background .3s ease;
}
.guard-card:hover{border-color:rgba(0,229,196,.4);background:rgba(0,229,196,.05);}
.guard-card i{font-size:20px;color:var(--brand-2);}
.guard-card h3{margin:14px 0 8px;font-size:16.5px;font-weight:700;}
.guard-card p{margin:0;font-size:14px;color:var(--text-soft);line-height:1.85;}
/* ---------- quick answer ---------- */
.qa-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.qa-item{
 background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--brand);
 border-radius:var(--radius);padding:22px 24px;
}
.qa-item h3{margin:0;font-size:16.5px;font-weight:700;}
.qa-item p{margin:10px 0 0;color:var(--text-soft);font-size:14.5px;line-height:1.9;}
/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:960px;}
.faq-item{
 background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
 overflow:hidden;transition:border-color .3s ease,background .3s ease;
}
.faq-item[open]{border-color:rgba(124,92,255,.5);background:var(--panel-2);}
.faq-item summary{
 cursor:pointer;list-style:none;padding:19px 58px 19px 24px;position:relative;
 font-size:16px;font-weight:700;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
 position:absolute;right:22px;top:50%;transform:translateY(-50%);
 color:var(--brand-2);font-size:14px;transition:transform .3s ease;
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);}
.faq-item .faq-body{padding:0 24px 22px;color:var(--text-soft);font-size:14.8px;line-height:1.95;}
/* ---------- cta / form ---------- */
.cta-band{
 background:linear-gradient(150deg,rgba(124,92,255,.22),rgba(0,229,196,.14) 55%,rgba(255,61,127,.16));
 border:1px solid var(--line-strong);
 border-radius:var(--radius-xl);
 padding:44px;
 display:grid;grid-template-columns:1fr .9fr;gap:44px;align-items:center;
 box-shadow:var(--shadow);
}
.cta-band h2{margin:0;font-size:clamp(22px,2.8vw,30px);font-weight:800;line-height:1.4;}
.cta-band p{margin:14px 0 0;color:#dfe3ef;font-size:15px;line-height:1.9;}
.cta-points{margin-top:22px;display:flex;flex-direction:column;gap:11px;}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:#e9ecf6;}
.cta-points i{color:var(--brand-2);margin-top:5px;}
.cta-form{
 background:rgba(9,10,16,.82);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:28px;
}
.cta-form h3{margin:0 0 20px;font-size:17px;font-weight:700;}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px;}
.field label{font-size:13.5px;color:var(--text-soft);font-weight:600;}
.field input,.field select{
 width:100%;padding:12px 15px;border-radius:var(--radius-sm);
 background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text);
 outline:none;transition:border-color .25s ease,background .25s ease;
}
.field input::placeholder{color:var(--muted);}
.field input:focus,.field select:focus{border-color:rgba(0,229,196,.6);background:rgba(0,229,196,.08);}
.field select option{background:#12141f;color:var(--text);}
.form-tip{margin:14px 0 0;font-size:12.5px;color:var(--muted);line-height:1.75;}
/* ---------- footer ---------- */
.site-footer{
 border-top:1px solid var(--line);
 background:linear-gradient(180deg,rgba(11,13,21,.6),rgba(7,8,13,1));
 padding:64px 0 28px;margin-top:24px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:38px;}
.footer-brand p{margin:16px 0 0;color:var(--text-soft);font-size:14.5px;line-height:1.9;max-width:360px;}
.footer-social{display:flex;gap:10px;margin-top:22px;}
.footer-social a{
 width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
 background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-soft);
}
.footer-social a:hover{color:#fff;border-color:rgba(0,229,196,.5);background:rgba(0,229,196,.1);transform:translateY(-2px);}
.footer-col h4{margin:0 0 16px;font-size:15px;font-weight:700;letter-spacing:.4px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul li a,.footer-col ul li span{color:var(--text-soft);font-size:14.5px;}
.footer-col ul li a:hover{color:var(--brand-2);}
.footer-bottom{
 margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
 display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
 font-size:13.5px;color:var(--muted);
}
/* ---------- responsive ---------- */
@media (max-width:1024px){
 .nav-search{display:none;}
 .nav-toggle{display:flex;}
 .main-nav{
  position:absolute;top:74px;left:0;right:0;
  flex-direction:column;align-items:stretch;gap:4px;
  padding:14px 22px 20px;
  background:rgba(8,9,14,.97);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  display:none;
 }
 .site-header.nav-open .main-nav{display:flex;}
 .main-nav a{padding:12px 15px;}
 .main-nav a.active::after{display:none;}
 .hero-grid{grid-template-columns:1fr;gap:34px;}
 .metric-grid{grid-template-columns:repeat(2,1fr);}
 .matrix-grid{grid-template-columns:repeat(2,1fr);}
 .guard-grid{grid-template-columns:repeat(2,1fr);}
 .article-list{grid-template-columns:1fr;}
 .cta-band{grid-template-columns:1fr;padding:34px;gap:30px;}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
 .spec-strip{grid-template-columns:repeat(2,1fr);}
 .spec-strip li:nth-child(2){border-right:0;}
 .spec-strip li:nth-child(1),.spec-strip li:nth-child(2){border-bottom:1px solid var(--line);}
}
@media (max-width:768px){
 .section{padding:56px 0;}
 .page-hero{padding:52px 0 34px;}
 .metric-grid{grid-template-columns:1fr 1fr;gap:14px;}
 .metric-value{font-size:25px;}
 .matrix-grid{grid-template-columns:1fr;}
 .qa-grid{grid-template-columns:1fr;}
 .guard-grid{grid-template-columns:1fr;}
 .compare-row{grid-template-columns:1fr 1fr;gap:10px;padding:16px 20px;}
 .compare-row.head{display:none;}
 .compare-row .c-cut{justify-self:start;}
 .compare-row > div::before{content:attr(data-label);display:block;font-size:11.5px;color:var(--muted);letter-spacing:.6px;margin-bottom:3px;}
 .compare-row.head > div::before{content:none;}
 .article-feature{padding:24px;}
 .cta-band{padding:26px;}
 .footer-grid{grid-template-columns:1fr;}
 .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
 .container{padding:0 16px;}
 .nav-wrap{height:66px;gap:12px;}
 .brand-text{font-size:16px;}
 .main-nav{top:66px;}
 .nav-actions .btn-sm{padding:8px 14px;font-size:13px;}
 .metric-grid{grid-template-columns:1fr;}
 .spec-strip{grid-template-columns:1fr;}
 .spec-strip li{border-right:0;border-bottom:1px solid var(--line);}
 .spec-strip li:last-child{border-bottom:0;}
 .hero-actions .btn{width:100%;}
 .compare-row{grid-template-columns:1fr;}
 .section-title{font-size:22px;}
 .faq-item summary{font-size:15px;padding-right:48px;}
}

/* roulang page: category2 */
:root{
 --bg:#07080d;
 --bg-soft:#0b0d15;
 --panel:#12141f;
 --panel-2:#181b28;
 --line:rgba(255,255,255,.08);
 --line-strong:rgba(255,255,255,.16);
 --text:#eef0f7;
 --text-soft:#aeb5c6;
 --muted:#7d8497;
 --brand:#7c5cff;
 --brand-2:#00e5c4;
 --accent:#ff3d7f;
 --grad:linear-gradient(120deg,#7c5cff 0%,#00e5c4 100%);
 --grad-warm:linear-gradient(120deg,#ff3d7f 0%,#7c5cff 100%);
 --radius-xl:26px;
 --radius-lg:20px;
 --radius:14px;
 --radius-sm:10px;
 --shadow:0 24px 60px -28px rgba(0,0,0,.9);
 --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
 margin:0;
 background:var(--bg);
 color:var(--text);
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:16px;
 line-height:1.75;
 overflow-x:hidden;
}
body::before{
 content:"";
 position:fixed;
 inset:0;
 z-index:0;
 pointer-events:none;
 background:
 radial-gradient(920px 540px at 10% -12%, rgba(124,92,255,.24), transparent 62%),
 radial-gradient(780px 500px at 90% 2%, rgba(0,229,196,.15), transparent 64%),
 radial-gradient(680px 460px at 50% 108%, rgba(255,61,127,.11), transparent 66%);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .25s ease,opacity .25s ease,border-color .25s ease,background .25s ease,transform .25s ease;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:800;letter-spacing:-.2px;}
p{margin:0;}
button,input,textarea,select{font:inherit;color:inherit;}
::selection{background:rgba(124,92,255,.45);color:#fff;}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px;position:relative;z-index:1;}
.site-header,main,.site-footer{position:relative;z-index:2;}
/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:13px 26px;border-radius:999px;font-weight:600;font-size:15px;
 border:1px solid transparent;cursor:pointer;white-space:nowrap;
 transition:transform .25s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
}
.btn-primary{background:var(--grad);color:#05131a;box-shadow:0 14px 34px -16px rgba(0,229,196,.85);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 44px -14px rgba(124,92,255,.9);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:rgba(255,255,255,.05);border-color:var(--line-strong);color:var(--text);}
.btn-ghost:hover{background:rgba(0,229,196,.09);border-color:rgba(0,229,196,.55);color:#fff;transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-lg{padding:15px 32px;font-size:16px;}
/* ---------- header / nav ---------- */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(8,9,14,.82);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
 border-bottom:1px solid var(--line);
}
.site-header::after{
 content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
 background:linear-gradient(90deg,transparent,rgba(124,92,255,.7),rgba(0,229,196,.7),transparent);
 opacity:.7;
}
.nav-wrap{display:flex;align-items:center;gap:22px;height:74px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
 width:40px;height:40px;border-radius:13px;display:grid;place-items:center;
 background:var(--grad);color:#05131a;font-weight:800;font-size:19px;
 box-shadow:0 10px 26px -12px rgba(124,92,255,.95);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;font-weight:800;font-size:18px;letter-spacing:.4px;}
.brand-text em{font-style:normal;font-size:11px;font-weight:600;letter-spacing:2.6px;color:var(--brand-2);opacity:.85;}
.main-nav{display:flex;align-items:center;gap:6px;flex:1;}
.main-nav a{position:relative;padding:9px 15px;border-radius:999px;font-size:15px;color:var(--text-soft);font-weight:500;}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.06);}
.main-nav a.active{color:#fff;background:rgba(124,92,255,.16);box-shadow:inset 0 0 0 1px rgba(124,92,255,.45);}
.main-nav a.active::after{
 content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);
 width:22px;height:2px;border-radius:2px;background:var(--grad);
 box-shadow:0 0 12px rgba(0,229,196,.9);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-search{
 display:flex;align-items:center;gap:9px;padding:8px 15px;border-radius:999px;
 background:rgba(255,255,255,.06);border:1px solid var(--line);
 transition:border-color .25s ease,background .25s ease;
}
.nav-search:hover{border-color:var(--line-strong);}
.nav-search:focus-within{border-color:rgba(0,229,196,.55);background:rgba(0,229,196,.07);}
.nav-search i{color:var(--muted);font-size:13px;}
.nav-search input{width:132px;background:none;border:0;outline:none;font-size:14px;}
.nav-search input::placeholder{color:var(--muted);}
.nav-toggle{
 display:none;flex-direction:column;justify-content:center;gap:4px;
 width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.06);
 border:1px solid var(--line);cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;margin:0 auto;border-radius:2px;background:var(--text);}
/* ---------- sections ---------- */
.section{padding:70px 0;}
.section--soft{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:34px;}
.section-tag{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:2.4px;color:var(--brand-2);text-transform:uppercase;}
.section-head h2{font-size:clamp(23px,3vw,34px);margin-top:12px;}
.section-head p{margin-top:12px;color:var(--text-soft);font-size:15.5px;}
/* ---------- page hero ---------- */
.page-hero{padding:66px 0 54px;}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:42px;align-items:start;}
.eyebrow{
 display:inline-flex;align-items:center;gap:9px;padding:7px 16px;border-radius:999px;
 font-size:13px;font-weight:600;color:#d8f8f1;background:rgba(0,229,196,.1);
 border:1px solid rgba(0,229,196,.32);box-shadow:0 0 26px -12px rgba(0,229,196,.9);
}
.page-hero h1{
 margin-top:22px;font-size:clamp(28px,4vw,46px);line-height:1.25;
 background:linear-gradient(118deg,#ffffff 18%,#a9ffe9 62%,#c9baff 100%);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lead{margin-top:18px;color:var(--text-soft);font-size:16.5px;max-width:640px;line-height:1.95;}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 24px;margin-top:26px;}
.hero-points li{display:flex;align-items:center;gap:9px;font-size:14.5px;color:var(--text);}
.hero-points i{color:var(--brand-2);font-size:14px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
/* ---------- apply card ---------- */
.apply-card{
 background:linear-gradient(180deg,rgba(124,92,255,.18),rgba(0,229,196,.05)),var(--panel);
 border:1px solid var(--line-strong);border-radius:var(--radius-xl);padding:28px;
 box-shadow:var(--shadow);
}
.apply-card h2{font-size:20px;display:flex;align-items:center;gap:10px;}
.apply-card h2 i{color:var(--brand-2);font-size:17px;}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.badge{
 padding:6px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
 background:rgba(124,92,255,.18);border:1px solid rgba(124,92,255,.45);color:#ded6ff;
}
.badge--green{background:rgba(0,229,196,.14);border-color:rgba(0,229,196,.42);color:#c7fff4;}
.qualify{margin-top:22px;}
.qualify li{
 display:flex;gap:11px;font-size:14.5px;color:var(--text-soft);
 padding:10px 0;border-bottom:1px dashed var(--line);
}
.qualify li:last-child{border-bottom:0;}
.qualify li i{color:var(--brand-2);font-size:13px;margin-top:6px;}
.apply-card .btn{width:100%;margin-top:20px;}
.apply-foot{margin-top:12px;font-size:12.5px;color:var(--muted);text-align:center;}
/* ---------- metric board ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.metric-card{
 position:relative;overflow:hidden;
 background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;
 transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.metric-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad);}
.metric-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.metric-value{
 font-size:32px;font-weight:800;line-height:1.1;
 background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.metric-value small{font-size:14px;font-weight:600;margin-left:4px;-webkit-text-fill-color:var(--text-soft);}
.metric-label{margin-top:8px;font-size:14px;color:var(--text-soft);}
.metric-trend{margin-top:12px;font-size:12.5px;color:var(--brand-2);display:inline-flex;align-items:center;gap:6px;}
.meter{
 margin-top:24px;background:var(--panel-2);border:1px solid var(--line);
 border-radius:var(--radius-lg);padding:24px 26px;
}
.meter-row{display:grid;grid-template-columns:150px 1fr 62px;gap:16px;align-items:center;padding:9px 0;}
.meter-name{font-size:14px;color:var(--text-soft);}
.meter-track{height:8px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;}
.meter-fill{height:100%;border-radius:999px;background:var(--grad);}
.meter-num{font-size:13.5px;font-weight:700;color:var(--brand-2);text-align:right;}
/* ---------- matrix ---------- */
.matrix-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.matrix-card{
 background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;
 transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.matrix-card:hover{transform:translateY(-4px);border-color:rgba(124,92,255,.5);box-shadow:var(--shadow);}
.matrix-icon{
 width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
 background:rgba(124,92,255,.16);border:1px solid rgba(124,92,255,.35);color:var(--brand-2);font-size:17px;
}
.matrix-card h3{margin-top:16px;font-size:18px;}
.matrix-card p{margin-top:10px;font-size:14.5px;color:var(--text-soft);}
.matrix-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.matrix-tags span{font-size:12px;padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--muted);}
/* ---------- compare ---------- */
.compare{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-xl);overflow:hidden;}
.compare-row{display:grid;grid-template-columns:1.05fr 1fr 1fr;border-top:1px solid var(--line);}
.compare-row:first-child{border-top:0;}
.compare-row--head{background:rgba(255,255,255,.03);}
.compare-cell{padding:16px 20px;font-size:14.5px;color:var(--text-soft);}
.compare-cell--label{color:var(--text);font-weight:600;}
.compare-cell--plain{border-left:1px solid var(--line);}
.compare-cell--hi{background:rgba(0,229,196,.07);border-left:1px solid rgba(0,229,196,.22);color:#e2fff9;font-weight:600;}
.compare-cell--hi i{color:var(--brand-2);margin-right:6px;}
.compare-note{margin-top:16px;font-size:13.5px;color:var(--muted);}
/* ---------- timeline ---------- */
.story-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:38px;align-items:start;}
.timeline{position:relative;padding-left:28px;}
.timeline::before{
 content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;
 background:linear-gradient(180deg,rgba(124,92,255,.85),rgba(0,229,196,.5),transparent);
}
.tl-item{position:relative;padding:0 0 26px 20px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
 content:"";position:absolute;left:-28px;top:7px;width:14px;height:14px;border-radius:50%;
 background:var(--bg);border:2px solid var(--brand-2);box-shadow:0 0 12px rgba(0,229,196,.75);
}
.tl-date{font-size:12.5px;font-weight:700;letter-spacing:1.4px;color:var(--brand-2);}
.tl-item h3{margin-top:6px;font-size:17px;}
.tl-item p{margin-top:8px;font-size:14.5px;color:var(--text-soft);}
.story-side{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-xl);padding:28px;}
.story-side h3{font-size:18px;}
.story-stat{display:flex;justify-content:space-between;align-items:baseline;padding:15px 0;border-bottom:1px dashed var(--line);}
.story-stat:last-of-type{border-bottom:0;}
.story-stat span{font-size:14px;color:var(--text-soft);}
.story-stat b{font-size:20px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.news-item{
 display:flex;flex-direction:column;
 background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;
 transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.news-item:hover{transform:translateY(-4px);border-color:rgba(0,229,196,.4);box-shadow:var(--shadow);}
.news-cat{
 align-self:flex-start;font-size:12px;font-weight:700;letter-spacing:1px;
 padding:5px 12px;border-radius:999px;background:rgba(255,61,127,.14);
 border:1px solid rgba(255,61,127,.4);color:#ffc6dc;
}
.news-item h3{margin-top:16px;font-size:18px;}
.news-item p{margin-top:10px;font-size:14.5px;color:var(--text-soft);}
.news-meta{display:flex;flex-wrap:wrap;gap:16px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted);}
.news-meta i{color:var(--brand);margin-right:6px;}
/* ---------- guard ---------- */
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.guard-card{
 background:var(--panel-2);border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;
 transition:border-color .28s ease,transform .28s ease;
}
.guard-card:hover{border-color:rgba(124,92,255,.5);transform:translateY(-3px);}
.guard-card i{font-size:20px;color:var(--brand-2);}
.guard-card h3{margin-top:14px;font-size:16.5px;}
.guard-card p{margin-top:8px;font-size:14px;color:var(--text-soft);}
/* ---------- faq ---------- */
.faq-list{max-width:940px;}
.faq-item{
 background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
 margin-bottom:12px;overflow:hidden;transition:border-color .25s ease,background .25s ease;
}
.faq-item[open]{border-color:rgba(0,229,196,.35);background:rgba(0,229,196,.04);}
.faq-item summary{
 display:flex;align-items:center;justify-content:space-between;gap:16px;
 padding:18px 22px;font-size:16px;font-weight:600;cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";font-size:20px;font-weight:600;color:var(--brand-2);line-height:1;}
.faq-item[open] summary::after{content:"−";}
.faq-item p{padding:0 22px 20px;font-size:14.5px;color:var(--text-soft);}
/* ---------- apply panel ---------- */
.apply-panel{
 background:linear-gradient(140deg,rgba(124,92,255,.18),rgba(0,229,196,.07)),var(--panel);
 border:1px solid var(--line-strong);border-radius:var(--radius-xl);padding:38px;
 display:grid;grid-template-columns:.85fr 1.15fr;gap:38px;
}
.apply-panel h2{font-size:clamp(22px,2.6vw,30px);}
.apply-panel .panel-copy{margin-top:14px;font-size:15px;color:var(--text-soft);}
.panel-list{margin-top:22px;}
.panel-list li{display:flex;gap:11px;font-size:14.5px;color:var(--text-soft);padding:8px 0;}
.panel-list i{color:var(--brand-2);font-size:13px;margin-top:6px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field--full{grid-column:1 / -1;}
.field label{font-size:13.5px;color:var(--text-soft);}
.field input,.field select,.field textarea{
 background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:var(--radius-sm);
 padding:12px 14px;outline:none;font-size:14.5px;
 transition:border-color .25s ease,background .25s ease,box-shadow .25s ease;
}
.field textarea{resize:vertical;min-height:96px;}
.field input::placeholder,.field textarea::placeholder{color:var(--muted);}
.field input:focus,.field select:focus,.field textarea:focus{
 border-color:rgba(0,229,196,.55);background:rgba(0,229,196,.06);box-shadow:0 0 0 3px rgba(0,229,196,.12);
}
.field select option{background:#12141f;color:var(--text);}
.form-actions{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:6px;}
.form-note{font-size:12.5px;color:var(--muted);}
/* ---------- footer ---------- */
.site-footer{margin-top:30px;padding:64px 0 30px;background:var(--bg-soft);border-top:1px solid var(--line);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:34px;}
.footer-brand p{margin-top:16px;font-size:14.5px;color:var(--text-soft);max-width:380px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
 width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
 background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--text-soft);
}
.footer-social a:hover{background:rgba(0,229,196,.12);border-color:rgba(0,229,196,.45);color:#fff;transform:translateY(-2px);}
.footer-col h4{font-size:15px;margin-bottom:16px;}
.footer-col li{margin-bottom:11px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-soft);}
.footer-col a:hover{color:var(--brand-2);}
.footer-bottom{
 display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
 margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
 font-size:13px;color:var(--muted);
}
/* ---------- responsive ---------- */
@media (max-width:1024px){
 .hero-grid{grid-template-columns:1fr;gap:32px;}
 .metric-grid{grid-template-columns:repeat(2,1fr);}
 .matrix-grid{grid-template-columns:repeat(2,1fr);}
 .guard-grid{grid-template-columns:repeat(2,1fr);}
 .story-grid{grid-template-columns:1fr;}
 .apply-panel{grid-template-columns:1fr;}
 .footer-grid{grid-template-columns:1fr 1fr;}
 .nav-search{display:none;}
 .main-nav a{padding:8px 12px;font-size:14px;}
 .nav-wrap{gap:14px;}
}
@media (max-width:768px){
 .nav-wrap{height:66px;gap:12px;}
 .main-nav{
  position:absolute;top:100%;left:0;right:0;display:none;
  flex-direction:column;align-items:stretch;gap:2px;
  padding:14px 18px 18px;background:rgba(8,9,14,.98);
  border-bottom:1px solid var(--line);box-shadow:0 24px 40px -24px rgba(0,0,0,.95);
 }
 .main-nav.open{display:flex;}
 .main-nav a{padding:11px 14px;}
 .main-nav a.active::after{display:none;}
 .nav-toggle{display:flex;}
 .btn{padding:11px 22px;font-size:14.5px;}
 .section{padding:54px 0;}
 .page-hero{padding:48px 0 40px;}
 .compare-row{grid-template-columns:1fr;}
 .compare-cell--plain,.compare-cell--hi{border-left:0;border-top:1px solid var(--line);}
 .compare-cell--label{background:rgba(255,255,255,.04);}
 .news-grid{grid-template-columns:1fr;}
 .meter-row{grid-template-columns:100px 1fr 54px;gap:12px;}
 .apply-panel{padding:26px;}
 .footer-grid{gap:26px;}
}
@media (max-width:520px){
 .container{padding:0 16px;}
 .metric-grid,.matrix-grid,.guard-grid,.news-grid,.form-grid{grid-template-columns:1fr;}
 .footer-grid{grid-template-columns:1fr;}
 .footer-bottom{flex-direction:column;align-items:flex-start;}
 .metric-value{font-size:27px;}
 .hero-points{gap:10px 18px;}
 .hero-actions .btn{width:100%;}
 .form-actions .btn{width:100%;}
 .meter-name{font-size:13px;}
}

/* roulang page: category3 */
:root{
 --bg:#07080d;
 --bg-soft:#0b0d15;
 --panel:#12141f;
 --panel-2:#181b28;
 --line:rgba(255,255,255,.08);
 --line-strong:rgba(255,255,255,.16);
 --text:#eef0f7;
 --text-soft:#aeb5c6;
 --muted:#7d8497;
 --brand:#7c5cff;
 --brand-2:#00e5c4;
 --accent:#ff3d7f;
 --grad:linear-gradient(120deg,#7c5cff 0%,#00e5c4 100%);
 --grad-warm:linear-gradient(120deg,#ff3d7f 0%,#7c5cff 100%);
 --radius-xl:26px;
 --radius-lg:20px;
 --radius:14px;
 --radius-sm:10px;
 --shadow:0 24px 60px -28px rgba(0,0,0,.9);
 --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
 margin:0;
 background:var(--bg);
 color:var(--text);
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:16px;
 line-height:1.75;
 overflow-x:hidden;
}
body::before{
 content:"";
 position:fixed;
 inset:0;
 z-index:0;
 pointer-events:none;
 background:
 radial-gradient(920px 540px at 10% -12%, rgba(124,92,255,.24), transparent 62%),
 radial-gradient(780px 500px at 90% 2%, rgba(0,229,196,.15), transparent 64%),
 radial-gradient(680px 460px at 50% 108%, rgba(255,61,127,.11), transparent 66%);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .25s ease,opacity .25s ease,border-color .25s ease;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.2px;line-height:1.3;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px;position:relative;z-index:1;}
.site-header,main,.site-footer{position:relative;z-index:2;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
 outline:2px solid var(--brand-2);outline-offset:3px;border-radius:6px;
}
/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:13px 26px;border-radius:999px;font-weight:600;font-size:15px;
 border:1px solid transparent;cursor:pointer;white-space:nowrap;
 transition:transform .25s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
}
.btn-primary{background:var(--grad);color:#05131a;box-shadow:0 14px 34px -16px rgba(0,229,196,.85);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 44px -14px rgba(124,92,255,.9);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:rgba(255,255,255,.05);border-color:var(--line-strong);color:var(--text);}
.btn-ghost:hover{background:rgba(0,229,196,.09);border-color:rgba(0,229,196,.55);color:#fff;transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-lg{padding:15px 32px;font-size:16px;}
.btn-block{width:100%;}
/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(8,9,14,.82);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
 border-bottom:1px solid var(--line);
}
.site-header::after{
 content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
 background:linear-gradient(90deg,transparent,rgba(124,92,255,.7),rgba(0,229,196,.7),transparent);
 opacity:.7;
}
.nav-wrap{display:flex;align-items:center;gap:22px;height:74px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
 width:40px;height:40px;border-radius:13px;display:grid;place-items:center;
 background:var(--grad);color:#05131a;font-weight:800;font-size:19px;
 box-shadow:0 10px 26px -12px rgba(124,92,255,.95);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;font-weight:800;font-size:18px;letter-spacing:.4px;}
.brand-text em{font-style:normal;font-size:11px;font-weight:600;letter-spacing:2.6px;color:var(--brand-2);opacity:.85;}
.main-nav{display:flex;align-items:center;gap:6px;flex:1;}
.main-nav a{position:relative;padding:9px 15px;border-radius:999px;font-size:15px;color:var(--text-soft);font-weight:500;}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.06);}
.main-nav a.active{color:#fff;background:rgba(124,92,255,.16);box-shadow:inset 0 0 0 1px rgba(124,92,255,.45);}
.main-nav a.active::after{
 content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);
 width:22px;height:2px;border-radius:2px;background:var(--grad);
 box-shadow:0 0 12px rgba(0,229,196,.9);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-search{
 display:flex;align-items:center;gap:9px;padding:8px 15px;border-radius:999px;
 background:rgba(255,255,255,.06);border:1px solid var(--line);
 transition:border-color .25s ease,background .25s ease;
}
.nav-search:hover{border-color:var(--line-strong);}
.nav-search:focus-within{border-color:rgba(0,229,196,.55);background:rgba(0,229,196,.07);}
.nav-search i{color:var(--muted);font-size:13px;}
.nav-search input{width:132px;background:none;border:0;outline:none;font-size:14px;}
.nav-search input::placeholder{color:var(--muted);}
.nav-toggle{
 display:none;flex-direction:column;justify-content:center;gap:4px;
 width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.06);
 border:1px solid var(--line);cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;margin:0 auto;border-radius:2px;background:var(--text);}
/* ---------- section base ---------- */
.section{padding:76px 0;}
.section--soft{background:linear-gradient(180deg,rgba(11,13,21,0) 0%,rgba(11,13,21,.85) 18%,rgba(11,13,21,.85) 82%,rgba(11,13,21,0) 100%);}
.section--dark{
 background:radial-gradient(900px 420px at 12% 0%, rgba(124,92,255,.16), transparent 60%),
            radial-gradient(700px 380px at 88% 100%, rgba(0,229,196,.12), transparent 62%),
            var(--panel);
 border-top:1px solid var(--line);
 border-bottom:1px solid var(--line);
}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:38px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(23px,3.2vw,34px);margin-top:12px;}
.section-note{max-width:520px;color:var(--text-soft);font-size:15px;line-height:1.9;}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:12.5px;font-weight:700;letter-spacing:2.2px;text-transform:uppercase;
 color:var(--brand-2);
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad);}
/* ---------- grids ---------- */
.grid{display:grid;gap:22px;}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr));}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr));}
/* ---------- hero ---------- */
.hero{padding:64px 0 58px;}
.hero-grid{display:grid;grid-template-columns:1.22fr .88fr;gap:40px;align-items:center;}
.hero-badge{
 display:inline-flex;align-items:center;gap:9px;
 padding:8px 18px;border-radius:999px;font-size:13.5px;font-weight:600;color:#d8f8f1;
 background:rgba(0,229,196,.1);border:1px solid rgba(0,229,196,.35);
 box-shadow:0 0 26px -10px rgba(0,229,196,.8);
}
.hero-title{font-size:clamp(34px,5.4vw,58px);margin-top:22px;line-height:1.16;}
.hero-sub{margin-top:12px;font-size:clamp(17px,2.2vw,21px);font-weight:700;color:var(--brand-2);}
.hero-desc{margin-top:18px;color:var(--text-soft);font-size:16px;line-height:1.95;max-width:640px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:22px;}
.hero-points li{display:flex;align-items:center;gap:9px;font-size:14.5px;color:var(--text);}
.hero-points i{color:var(--brand-2);font-size:14px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;padding-top:26px;border-top:1px solid var(--line);}
.stat-chip{
 display:flex;flex-direction:column;gap:2px;padding:12px 20px;border-radius:var(--radius);
 background:rgba(255,255,255,.04);border:1px solid var(--line);
 transition:border-color .25s ease,transform .25s ease,background .25s ease;
}
.stat-chip:hover{border-color:rgba(0,229,196,.5);background:rgba(0,229,196,.06);transform:translateY(-2px);}
.stat-chip b{font-size:21px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.stat-chip span{font-size:12.5px;color:var(--muted);letter-spacing:.4px;}
/* ---------- feature card ---------- */
.feature-card{
 background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-xl);
 padding:16px;box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.feature-card::after{
 content:"";position:absolute;inset:-1px;border-radius:var(--radius-xl);pointer-events:none;
 background:linear-gradient(140deg,rgba(124,92,255,.5),transparent 45%,rgba(0,229,196,.4));
 -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
 mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
 -webkit-mask-composite:xor;mask-composite:exclude;padding:1px;
}
.feature-cover{
 position:relative;height:172px;border-radius:var(--radius);display:grid;place-items:center;
 background:linear-gradient(135deg,#7c5cff 0%,#00e5c4 78%);
 overflow:hidden;
}
.feature-cover::before{
 content:"";position:absolute;inset:0;
 background:radial-gradient(320px 180px at 18% 12%, rgba(255,255,255,.35), transparent 62%);
}
.feature-icon{font-size:64px;color:rgba(5,19,26,.78);position:relative;z-index:1;}
.rank-badge{
 position:absolute;top:14px;left:14px;z-index:2;
 padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:800;color:#05131a;
 background:rgba(255,255,255,.92);letter-spacing:.5px;
}
.cover-tag{
 position:absolute;bottom:14px;right:14px;z-index:2;
 padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:600;color:#05131a;
 background:rgba(5,19,26,.55);color:#eaf8f5;border:1px solid rgba(255,255,255,.35);
}
.feature-body{padding:18px 8px 10px;}
.feature-title{font-size:19px;line-height:1.5;}
.feature-meta{margin-top:8px;font-size:13px;color:var(--muted);}
.feature-data{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:16px;}
.feature-data li{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--radius-sm);padding:10px 8px;text-align:center;}
.feature-data strong{display:block;font-size:17px;font-weight:800;color:var(--brand-2);}
.feature-data span{font-size:12px;color:var(--muted);}
.feature-note{margin-top:14px;font-size:13.5px;color:var(--text-soft);}
/* ---------- stat cards ---------- */
.stat-card{
 background:var(--panel-2);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:24px;transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.stat-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.stat-card i{font-size:19px;color:var(--brand-2);}
.stat-value{margin-top:12px;font-size:clamp(26px,3.4vw,36px);font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.stat-label{margin-top:6px;font-size:14px;color:var(--text-soft);}
.stat-foot{margin-top:10px;font-size:12.5px;color:var(--muted);}
/* ---------- bar panel ---------- */
.bar-panel{
 margin-top:24px;background:var(--panel-2);border:1px solid var(--line);
 border-radius:var(--radius-lg);padding:26px 26px 18px;
}
.bar-panel h3{font-size:17px;margin-bottom:18px;}
.bar-row{display:grid;grid-template-columns:118px 1fr 58px;align-items:center;gap:16px;padding:9px 0;}
.bar-name{font-size:14px;color:var(--text-soft);}
.bar-track{height:8px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden;}
.bar-fill{display:block;height:100%;border-radius:999px;background:var(--grad);box-shadow:0 0 16px rgba(0,229,196,.5);}
.bar-value{font-size:14px;font-weight:700;text-align:right;color:#fff;}
/* ---------- track cards ---------- */
.track-card{
 background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:26px;position:relative;overflow:hidden;
 transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.track-card:hover{transform:translateY(-6px);border-color:rgba(124,92,255,.5);box-shadow:var(--shadow);}
.track-card::before{
 content:"";position:absolute;top:0;left:24px;right:24px;height:2px;
 background:var(--grad);opacity:.75;
}
.track-icon{
 width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
 background:rgba(124,92,255,.15);border:1px solid rgba(124,92,255,.4);color:#cbbdff;font-size:19px;
}
.track-card h3{margin-top:16px;font-size:18px;}
.track-card p{margin-top:10px;font-size:14.5px;color:var(--text-soft);line-height:1.85;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
 display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
 font-size:12.5px;color:var(--text-soft);background:rgba(255,255,255,.05);border:1px solid var(--line);
}
.tag--brand{color:#c9fff4;background:rgba(0,229,196,.1);border-color:rgba(0,229,196,.32);}
.track-foot{display:flex;gap:20px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line);}
.track-foot div b{display:block;font-size:17px;font-weight:800;color:#fff;}
.track-foot div span{font-size:12px;color:var(--muted);}
/* ---------- compare ---------- */
.compare-panel{
 background:var(--panel-2);border:1px solid var(--line);border-radius:var(--radius-xl);padding:30px;
}
.compare-row{display:grid;grid-template-columns:150px 1fr 1fr;gap:18px;align-items:center;padding:18px 0;border-bottom:1px dashed var(--line);}
.compare-row:last-of-type{border-bottom:0;}
.compare-row h4{font-size:15px;color:var(--text-soft);font-weight:600;}
.compare-cell{border-radius:var(--radius);padding:14px 16px;border:1px solid var(--line);background:rgba(255,255,255,.03);}
.compare-cell span{font-size:12.5px;color:var(--muted);display:block;}
.compare-cell strong{font-size:20px;font-weight:800;}
.compare-cell--before strong{color:var(--text-soft);}
.compare-cell--after{border-color:rgba(0,229,196,.42);background:rgba(0,229,196,.08);}
.compare-cell--after strong{color:var(--brand-2);}
.compare-note{margin-top:20px;font-size:13.5px;color:var(--muted);}
/* ---------- timeline ---------- */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;}
.timeline::before{
 content:"";position:absolute;top:14px;left:6%;right:6%;height:1px;
 background:linear-gradient(90deg,rgba(124,92,255,.6),rgba(0,229,196,.6));opacity:.55;
}
.tl-item{position:relative;padding-top:42px;}
.tl-dot{
 position:absolute;top:5px;left:0;width:20px;height:20px;border-radius:50%;
 background:var(--bg);border:2px solid var(--brand-2);box-shadow:0 0 18px rgba(0,229,196,.75);
}
.tl-year{font-size:13px;font-weight:700;color:var(--brand-2);letter-spacing:1.4px;}
.tl-item h3{margin-top:8px;font-size:17px;}
.tl-item p{margin-top:8px;font-size:14px;color:var(--text-soft);line-height:1.85;}
/* ---------- news list ---------- */
.news-list{display:flex;flex-direction:column;gap:16px;}
.news-item{
 display:grid;grid-template-columns:96px 1fr auto;gap:22px;align-items:center;
 padding:20px 24px;border-radius:var(--radius-lg);
 background:var(--panel);border:1px solid var(--line);
 transition:transform .28s ease,border-color .28s ease,background .28s ease;
}
.news-item:hover{transform:translateX(6px);border-color:rgba(124,92,255,.5);background:var(--panel-2);}
.news-date{font-size:13px;color:var(--muted);line-height:1.5;}
.news-date b{display:block;font-size:20px;color:#fff;font-weight:800;}
.news-body h3{font-size:16.5px;line-height:1.55;}
.news-body p{margin-top:7px;font-size:14px;color:var(--text-soft);}
.news-arrow{color:var(--brand-2);font-size:15px;}
/* ---------- channel entry ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.channel-card{
 display:flex;flex-direction:column;gap:10px;padding:24px;
 border-radius:var(--radius-lg);border:1px solid var(--line);
 background:linear-gradient(150deg,rgba(124,92,255,.14),rgba(24,27,40,.9));
 transition:transform .28s ease,border-color .28s ease;
}
.channel-card:hover{transform:translateY(-5px);border-color:rgba(0,229,196,.5);}
.channel-card i{font-size:18px;color:var(--brand-2);}
.channel-card h3{font-size:17px;}
.channel-card p{font-size:13.8px;color:var(--text-soft);}
.channel-card span.more{font-size:13px;color:var(--brand-2);font-weight:600;margin-top:auto;}
/* ---------- guard ---------- */
.guard-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.guard-card{
 background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:24px;display:flex;gap:16px;
 transition:border-color .28s ease,background .28s ease;
}
.guard-card:hover{border-color:rgba(0,229,196,.45);background:rgba(0,229,196,.05);}
.guard-card i{font-size:18px;color:var(--brand);margin-top:4px;}
.guard-card h3{font-size:16.5px;}
.guard-card p{margin-top:8px;font-size:14px;color:var(--text-soft);line-height:1.85;}
/* ---------- faq ---------- */
.faq-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.faq-item{
 background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
 padding:20px 22px;transition:border-color .28s ease,background .28s ease;
}
.faq-item[open]{border-color:rgba(124,92,255,.5);background:var(--panel-2);}
.faq-item summary{
 list-style:none;cursor:pointer;font-weight:700;font-size:16px;
 display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"+";font-size:19px;color:var(--brand-2);font-weight:600;line-height:1;
 transition:transform .25s ease;
}
.faq-item[open] summary::after{content:"–";transform:rotate(180deg);}
.faq-item p{margin-top:12px;font-size:14.5px;color:var(--text-soft);line-height:1.9;}
/* ---------- cta / form ---------- */
.cta-panel{
 display:grid;grid-template-columns:.95fr 1.05fr;gap:40px;align-items:start;
 background:radial-gradient(700px 380px at 8% 0%, rgba(124,92,255,.22), transparent 62%),var(--panel);
 border:1px solid var(--line);border-radius:var(--radius-xl);padding:40px;
}
.cta-panel h2{font-size:clamp(24px,3.2vw,34px);}
.cta-panel > div > p{margin-top:16px;color:var(--text-soft);font-size:15.5px;line-height:1.95;}
.cta-list{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.cta-list li{display:flex;align-items:flex-start;gap:11px;font-size:14.5px;color:var(--text);}
.cta-list i{color:var(--brand-2);margin-top:5px;font-size:14px;}
.lead-form{display:grid;gap:16px;background:rgba(7,8,13,.55);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:13.5px;color:var(--text-soft);font-weight:600;}
.field input,.field select,.field textarea{
 width:100%;padding:12px 15px;border-radius:var(--radius-sm);
 background:rgba(255,255,255,.05);border:1px solid var(--line);outline:none;
 font-size:14.5px;transition:border-color .25s ease,background .25s ease;
}
.field textarea{min-height:104px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{border-color:rgba(0,229,196,.6);background:rgba(0,229,196,.06);}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-tip{font-size:12.8px;color:var(--muted);}
.form-msg{display:none;font-size:14px;color:#a9fff0;background:rgba(0,229,196,.1);border:1px solid rgba(0,229,196,.35);border-radius:var(--radius-sm);padding:12px 16px;}
.form-msg.show{display:block;}
/* ---------- footer ---------- */
.site-footer{margin-top:40px;border-top:1px solid var(--line);background:rgba(8,9,14,.9);padding:58px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px;}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--text-soft);line-height:1.9;max-width:380px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
 width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
 background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-soft);
 transition:all .25s ease;
}
.footer-social a:hover{color:#05131a;background:var(--grad);border-color:transparent;transform:translateY(-3px);}
.footer-col h4{font-size:15px;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col li a,.footer-col li span{font-size:14px;color:var(--text-soft);}
.footer-col li a:hover{color:var(--brand-2);}
.footer-bottom{
 display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
 margin-top:40px;padding-top:22px;border-top:1px solid var(--line);
 font-size:13px;color:var(--muted);
}
/* ---------- responsive ---------- */
@media (max-width:1024px){
 .nav-search{display:none;}
 .hero-grid{grid-template-columns:1fr;gap:34px;}
 .hero-desc{max-width:none;}
 .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
 .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
 .timeline{grid-template-columns:repeat(2,1fr);row-gap:30px;}
 .timeline::before{display:none;}
 .channel-grid{grid-template-columns:repeat(2,1fr);}
 .footer-grid{grid-template-columns:1fr 1fr;}
 .cta-panel{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:820px){
 .nav-toggle{display:flex;}
 .main-nav{
  position:absolute;top:74px;left:0;right:0;flex-direction:column;align-items:stretch;gap:4px;
  padding:14px 18px 18px;background:rgba(8,9,14,.98);
  border-bottom:1px solid var(--line);backdrop-filter:blur(16px);
  display:none;
 }
 .main-nav.open{display:flex;}
 .main-nav a{padding:12px 16px;}
 .main-nav a.active::after{display:none;}
 .nav-wrap{gap:14px;}
 .guard-grid{grid-template-columns:1fr;}
 .faq-list{grid-template-columns:1fr;}
 .compare-row{grid-template-columns:1fr;gap:12px;}
 .news-item{grid-template-columns:70px 1fr;gap:16px;}
 .news-item .news-arrow{display:none;}
}
@media (max-width:640px){
 .section{padding:56px 0;}
 .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
 .channel-grid{grid-template-columns:1fr;}
 .timeline{grid-template-columns:1fr;}
 .field-row{grid-template-columns:1fr;}
 .cta-panel{padding:26px;}
 .footer-grid{grid-template-columns:1fr;}
 .nav-actions .btn-primary{display:none;}
 .hero-stats{gap:10px;}
 .stat-chip{flex:1 1 42%;}
}
@media (max-width:520px){
 .brand-text{font-size:16px;}
 .bar-row{grid-template-columns:88px 1fr 42px;gap:10px;}
 .feature-data{grid-template-columns:1fr 1fr;}
 .compare-panel,.bar-panel{padding:20px;}
}