/* roulang page: index */
:root{
  --bg:#060A12;
  --panel:#0B1220;
  --card:#101A2E;
  --cyan:#2FD8FF;
  --purple:#7C4DFF;
  --amber:#FFB020;
  --success:#2EE6A8;
  --danger:#FF5C7A;
  --text:#EAF2FF;
  --muted:#A8B8D8;
  --weak:#6F82A6;
  --border:rgba(120,180,255,.16);
  --glass:rgba(12,22,40,.55);
  --radius:20px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow:0 28px 64px -28px rgba(0,0,0,.8),0 0 0 1px rgba(120,180,255,.06);
  --shadow-soft:0 16px 36px -22px rgba(0,0,0,.7);
  --glow-cyan:0 0 24px rgba(47,216,255,.35);
  --glow-purple:0 0 26px rgba(124,77,255,.28);
  --maxw:1240px;
  --gap:28px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(900px 520px at 82% -6%,rgba(47,216,255,.12),transparent 62%),
    radial-gradient(760px 460px at 6% 12%,rgba(124,77,255,.14),transparent 60%),
    linear-gradient(rgba(120,180,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,180,255,.035) 1px,transparent 1px);
  background-size:auto,auto,64px 64px,64px 64px;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:#8DEBFF;}
h1,h2,h3,h4{margin:0 0 14px;line-height:1.28;font-weight:700;color:#fff;letter-spacing:.2px;}
h1{font-size:clamp(32px,4.6vw,56px);font-weight:800;}
h2{font-size:clamp(26px,3.2vw,40px);font-weight:700;}
h3{font-size:clamp(19px,1.9vw,24px);}
p{margin:0 0 16px;color:var(--muted);}
ul,ol{margin:0 0 16px;padding-left:20px;color:var(--muted);}
li{margin-bottom:8px;}
button,input,select,textarea{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px;}
.section{padding:96px 0;position:relative;}
.section--tight{padding:68px 0;}
.section--panel{background:linear-gradient(180deg,rgba(11,18,32,.9),rgba(6,10,18,.9));border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;color:var(--cyan);
  text-transform:uppercase;margin-bottom:14px;font-weight:600;
}
.eyebrow::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,var(--cyan),transparent);}
.lead{font-size:17px;color:var(--muted);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:var(--radius-sm);border:1px solid transparent;
  font-size:15.5px;font-weight:600;cursor:pointer;line-height:1.2;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn i{font-size:14px;}
.btn-primary{
  background:linear-gradient(120deg,var(--cyan),#4FA9FF 48%,var(--purple));
  color:#04101F;
  box-shadow:var(--glow-cyan),var(--glow-purple);
}
.btn-primary:hover{color:#04101F;transform:translateY(-2px);box-shadow:0 0 32px rgba(47,216,255,.5),0 0 40px rgba(124,77,255,.35);}
.btn-primary:active{transform:translateY(0);}
.btn-amber{
  background:linear-gradient(120deg,var(--amber),#FFD277);
  color:#2A1B00;box-shadow:0 0 26px rgba(255,176,32,.35);
}
.btn-amber:hover{color:#2A1B00;transform:translateY(-2px);box-shadow:0 0 34px rgba(255,176,32,.5);}
.btn-ghost{
  background:var(--glass);color:var(--text);border-color:var(--border);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{color:#fff;background:rgba(30,52,88,.7);border-color:rgba(120,180,255,.4);transform:translateY(-2px);}
.btn-block{width:100%;}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn:disabled,.btn.is-disabled{opacity:.45;filter:saturate(.5);cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--cyan);}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover i{transform:translateX(5px);}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:600;letter-spacing:.03em;
  background:rgba(47,216,255,.1);color:var(--cyan);border:1px solid rgba(47,216,255,.28);
}
.tag--purple{background:rgba(124,77,255,.12);color:#B39BFF;border-color:rgba(124,77,255,.32);}
.tag--amber{background:rgba(255,176,32,.12);color:var(--amber);border-color:rgba(255,176,32,.32);}
.tag--muted{background:rgba(120,180,255,.07);color:var(--weak);border-color:var(--border);}
.tag--success{background:rgba(46,230,168,.1);color:var(--success);border-color:rgba(46,230,168,.3);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,10,18,.72);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border);
  transition:background .25s ease,box-shadow .25s ease,padding .25s ease;
}
.site-header.is-scrolled{
  background:rgba(6,10,18,.94);
  box-shadow:0 12px 30px -20px rgba(0,0,0,.95);
  border-bottom-color:rgba(47,216,255,.3);
}
.nav-wrap{display:flex;align-items:center;gap:22px;height:78px;transition:height .25s ease;}
.site-header.is-scrolled .nav-wrap{height:64px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:42px;height:42px;border-radius:13px;flex:0 0 auto;
  background:linear-gradient(135deg,rgba(47,216,255,.95),rgba(124,77,255,.95));
  display:flex;align-items:center;justify-content:center;
  color:#04101F;font-size:18px;font-weight:800;
  box-shadow:0 0 22px rgba(47,216,255,.4);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{font-size:16.5px;font-weight:800;color:#fff;letter-spacing:.02em;}
.brand-sub{font-size:11.5px;color:var(--cyan);letter-spacing:.28em;}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto;}
.nav-main a{
  position:relative;padding:9px 13px;border-radius:var(--radius-pill);
  color:var(--muted);font-size:15px;font-weight:500;
}
.nav-main a:hover{color:#fff;background:rgba(120,180,255,.08);}
.nav-main a.active{color:#fff;background:rgba(47,216,255,.13);box-shadow:inset 0 0 0 1px rgba(47,216,255,.32);}
.nav-main a.active::after{
  content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);
  width:24px;height:2px;border-radius:2px;background:var(--cyan);box-shadow:0 0 10px var(--cyan);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:var(--glass);border:1px solid var(--border);color:#fff;font-size:17px;cursor:pointer;
}
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,7,14,.7);backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(86vw,360px);z-index:95;
  background:linear-gradient(180deg,#0B1220,#060A12);
  border-left:1px solid var(--border);
  transform:translateX(102%);transition:transform .3s ease;
  display:flex;flex-direction:column;padding:22px 20px 26px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{background:transparent;border:1px solid var(--border);color:#fff;width:38px;height:38px;border-radius:10px;cursor:pointer;}
.drawer-label{font-size:12px;letter-spacing:.2em;color:var(--weak);margin:6px 0 10px;}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:20px;}
.drawer-nav a{
  padding:12px 14px;border-radius:12px;color:var(--muted);font-weight:500;
  border:1px solid transparent;
}
.drawer-nav a:hover{background:rgba(120,180,255,.08);color:#fff;}
.drawer-nav a.active{background:rgba(47,216,255,.12);color:#fff;border-color:rgba(47,216,255,.3);}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;padding-top:18px;border-top:1px solid var(--border);}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:88px 0 78px;
  background-image:
    linear-gradient(100deg,rgba(6,10,18,.94) 12%,rgba(6,10,18,.72) 52%,rgba(6,10,18,.9) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--border);
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,216,255,.22),transparent 66%);pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px;align-items:center;position:relative;z-index:2;}
.hero h1{margin-bottom:18px;}
.hero h1 span{background:linear-gradient(100deg,var(--cyan),#9F8BFF);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{font-size:17.5px;color:var(--muted);max-width:600px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;max-width:620px;}
.hero-point{
  padding:14px 16px;border-radius:var(--radius-sm);
  background:rgba(16,26,46,.6);border:1px solid var(--border);
}
.hero-point strong{display:block;font-size:20px;color:#fff;}
.hero-point span{font-size:13px;color:var(--weak);}
.hero-card{
  position:relative;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(16,26,46,.92),rgba(9,16,30,.86));
  border:1px solid rgba(120,180,255,.22);
  box-shadow:var(--shadow);
  padding:26px 24px 24px;
  backdrop-filter:blur(14px);
}
.hero-card::before{
  content:"";position:absolute;inset:0;border-radius:var(--radius);
  background:linear-gradient(140deg,rgba(47,216,255,.1),transparent 45%);pointer-events:none;
}
.hero-card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;position:relative;}
.hero-card-head h3{margin:0;font-size:18px;}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:14px;position:relative;}
.field label{font-size:13.5px;color:var(--muted);font-weight:500;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--radius-sm);
  background:rgba(6,10,18,.72);border:1px solid var(--border);color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field input::placeholder,.field textarea::placeholder{color:var(--weak);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:rgba(47,216,255,.65);
  box-shadow:0 0 0 3px rgba(47,216,255,.14);background:rgba(6,10,18,.9);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--danger);box-shadow:0 0 0 3px rgba(255,92,122,.14);}
.field-error{font-size:12.5px;color:var(--danger);display:none;}
.field.has-error .field-error{display:block;}
.checks{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--muted);margin:6px 0 18px;}
.checks input{width:17px;height:17px;margin-top:3px;accent-color:var(--cyan);}
.form-note{font-size:12.5px;color:var(--weak);margin-top:12px;text-align:center;}
.form-msg{display:none;margin-top:14px;padding:12px 14px;border-radius:var(--radius-sm);font-size:14px;}
.form-msg.ok{display:block;background:rgba(46,230,168,.12);border:1px solid rgba(46,230,168,.34);color:var(--success);}
.form-msg.bad{display:block;background:rgba(255,92,122,.12);border:1px solid rgba(255,92,122,.34);color:#FFB6C6;}
.mini-row{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--weak);margin-top:14px;}
.mini-row i{color:var(--success);}

/* ---------- 通用卡片 ---------- */
.card{
  background:linear-gradient(170deg,rgba(16,26,46,.92),rgba(11,18,32,.86));
  border:1px solid var(--border);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow-soft);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(47,216,255,.34);box-shadow:0 26px 52px -30px rgba(0,0,0,.9);}
.card h3{font-size:19px;margin-bottom:10px;}
.card p:last-child{margin-bottom:0;}

/* ---------- 优惠阶梯 ---------- */
.ladder{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;position:relative;}
.ladder::before{
  content:"";position:absolute;left:4%;right:4%;top:34px;height:2px;
  background:linear-gradient(90deg,rgba(47,216,255,.15),rgba(47,216,255,.5),rgba(124,77,255,.5),rgba(255,176,32,.6));
}
.step{position:relative;padding-top:0;}
.step-node{
  width:68px;height:68px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:800;color:#04101F;margin-bottom:20px;position:relative;z-index:2;
  background:linear-gradient(135deg,var(--cyan),#5EA8FF);
  box-shadow:0 0 0 6px rgba(6,10,18,1),0 0 26px rgba(47,216,255,.4);
}
.step:nth-child(2) .step-node{background:linear-gradient(135deg,#54E0FF,#7C4DFF);}
.step:nth-child(3) .step-node{background:linear-gradient(135deg,#8B79FF,#B39BFF);}
.step:nth-child(4) .step-node{background:linear-gradient(135deg,var(--amber),#FFD277);}
.step-body{background:rgba(16,26,46,.72);border:1px solid var(--border);border-radius:var(--radius);padding:22px;}
.step-body h3{font-size:18px;margin-bottom:6px;}
.step-body .cond{font-size:13px;color:var(--weak);margin-bottom:12px;}
.step-body ul{padding-left:18px;margin-bottom:14px;font-size:14.5px;}

/* ---------- 套餐对比 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius);background:rgba(11,18,32,.72);}
table.plan{width:100%;border-collapse:collapse;min-width:760px;}
table.plan th,table.plan td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--border);font-size:14.5px;color:var(--muted);}
table.plan thead th{background:rgba(12,22,40,.9);color:#fff;font-size:15px;font-weight:700;}
table.plan td:first-child,table.plan th:first-child{color:var(--text);font-weight:600;}
table.plan tbody tr:hover{background:rgba(47,216,255,.05);}
table.plan tr:last-child td{border-bottom:0;}
table.plan .price{font-size:20px;font-weight:800;color:#fff;}
table.plan .col-best{background:rgba(47,216,255,.07);position:relative;}
table.plan .col-best::before{
  content:"推荐";position:absolute;top:-1px;left:50%;transform:translateX(-50%);
  background:linear-gradient(90deg,var(--cyan),var(--purple));color:#04101F;
  font-size:11.5px;font-weight:700;padding:3px 12px;border-radius:0 0 10px 10px;
}
.plan-cards{display:none;grid-template-columns:1fr;gap:16px;}
.plan-card{border-radius:var(--radius);border:1px solid var(--border);background:rgba(16,26,46,.8);padding:22px;}
.plan-card.best{border-color:rgba(47,216,255,.5);box-shadow:0 0 26px -8px rgba(47,216,255,.5);}
.plan-card .price{font-size:26px;font-weight:800;color:#fff;}

/* ---------- 限时条 ---------- */
.promo-band{
  display:grid;grid-template-columns:1fr auto;gap:26px;align-items:center;
  border-radius:var(--radius);padding:28px 30px;
  background:linear-gradient(120deg,rgba(255,176,32,.14),rgba(124,77,255,.12) 60%,rgba(47,216,255,.1));
  border:1px solid rgba(255,176,32,.3);
}
.promo-band h3{margin-bottom:6px;}
.countdown{display:flex;gap:12px;margin-top:14px;}
.cd-cell{
  min-width:74px;text-align:center;padding:10px 8px;border-radius:14px;
  background:rgba(6,10,18,.72);border:1px solid var(--border);
}
.cd-cell b{display:block;font-size:24px;color:var(--amber);}
.cd-cell span{font-size:12px;color:var(--weak);}

/* ---------- CMS 列表 ---------- */
.cms-feature{
  display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:26px;
  border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);
  background:linear-gradient(160deg,rgba(16,26,46,.94),rgba(11,18,32,.9));
  margin-bottom:24px;
}
.cms-feature-cover{position:relative;min-height:260px;overflow:hidden;}
.cms-feature-cover img{width:100%;height:100%;object-fit:cover;}
.cms-feature-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 40%,rgba(11,18,32,.85));}
.cms-feature-body{padding:28px;display:flex;flex-direction:column;justify-content:center;}
.cms-feature-body h3{font-size:23px;margin:12px 0 12px;}
.cms-feature-body h3 a{color:#fff;}
.cms-feature-body h3 a:hover{color:var(--cyan);}
.cms-meta{display:flex;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--weak);align-items:center;}
.cms-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.cms-item{
  border-radius:var(--radius);border:1px solid var(--border);
  background:rgba(16,26,46,.72);padding:22px;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.cms-item:hover{transform:translateY(-3px);border-color:rgba(47,216,255,.3);box-shadow:0 22px 44px -30px rgba(0,0,0,.9);}
.cms-item h3{font-size:17px;margin:10px 0 8px;line-height:1.45;}
.cms-item h3 a{color:#fff;}
.cms-item h3 a:hover{color:var(--cyan);}
.cms-item p{font-size:14.5px;margin-bottom:12px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.cms-empty{
  padding:34px;border-radius:var(--radius);border:1px dashed rgba(120,180,255,.3);
  background:rgba(12,22,40,.5);text-align:center;color:var(--weak);
}

/* ---------- 服务能力图文 ---------- */
.ability-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.ability{border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);background:rgba(11,18,32,.8);display:flex;flex-direction:column;}
.ability img{aspect-ratio:16/10;object-fit:cover;width:100%;transition:transform .3s ease;}
.ability:hover img{transform:scale(1.04);}
.ability-body{padding:22px;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  border-radius:var(--radius);border:1px solid var(--border);
  background:rgba(12,22,40,.6);overflow:hidden;
  border-left:3px solid rgba(47,216,255,.5);
}
.faq-q{
  width:100%;text-align:left;background:transparent;border:0;color:#fff;
  padding:18px 22px;font-size:16px;font-weight:600;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-q i{color:var(--cyan);transition:transform .25s ease;font-size:15px;}
.faq-item.open .faq-q i{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;padding:0 22px;}
.faq-a p{padding:0 0 18px;margin:0;font-size:15px;}
.faq-item.open .faq-a{max-height:420px;}

/* ---------- CTA ---------- */
.cta-band{
  border-radius:26px;padding:46px 40px;text-align:center;
  background:
    radial-gradient(700px 320px at 50% 0%,rgba(47,216,255,.16),transparent 68%),
    linear-gradient(150deg,rgba(16,26,46,.95),rgba(9,16,30,.92));
  border:1px solid rgba(120,180,255,.24);
  box-shadow:var(--shadow);
}
.cta-band h2{margin-bottom:12px;}
.cta-band .lead{max-width:660px;margin:0 auto 26px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}

/* ---------- 数据带 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.stat{padding:22px;border-radius:var(--radius);background:rgba(16,26,46,.66);border:1px solid var(--border);}
.stat b{display:block;font-size:28px;color:#fff;font-weight:800;}
.stat span{font-size:13.5px;color:var(--weak);}
.stat i{color:var(--cyan);margin-right:6px;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:20px;padding:64px 0 26px;
  background:linear-gradient(180deg,rgba(11,18,32,.85),rgba(4,7,13,.98));
  border-top:1px solid var(--border);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px;}
.footer-brand p{font-size:14.5px;margin-top:14px;}
.footer-title{font-size:14px;color:#fff;font-weight:700;margin-bottom:16px;letter-spacing:.05em;}
.footer-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:var(--muted);font-size:14.5px;}
.footer-links a:hover{color:var(--cyan);}
.footer-bottom{
  margin-top:42px;padding-top:22px;border-top:1px solid var(--border);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:13.5px;color:var(--weak);
}
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:70;
  width:46px;height:46px;border-radius:14px;border:1px solid var(--border);
  background:rgba(12,22,40,.86);color:var(--cyan);cursor:pointer;font-size:16px;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease,transform .2s ease;
  backdrop-filter:blur(8px);
}
.to-top.show{opacity:1;visibility:visible;}
.to-top:hover{transform:translateY(-3px);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .nav-main{display:none;}
  .nav-actions .btn-ghost{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero{padding:64px 0 58px;}
  .ladder{grid-template-columns:repeat(2,minmax(0,1fr));}
  .ladder::before{display:none;}
  .step-node{width:58px;height:58px;font-size:17px;}
  .cms-feature{grid-template-columns:1fr;}
  .cms-feature-cover{min-height:200px;}
  .ability-grid{grid-template-columns:1fr 1fr;}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .section{padding:72px 0;}
}
@media screen and (max-width:767px){
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  h1{font-size:30px;}
  h2{font-size:25px;}
  .hero-points{grid-template-columns:1fr;max-width:none;}
  .ladder{grid-template-columns:1fr;}
  .table-wrap{display:none;}
  .plan-cards{display:grid;}
  .cms-list{grid-template-columns:1fr;}
  .ability-grid{grid-template-columns:1fr;}
  .promo-band{grid-template-columns:1fr;padding:22px;}
  .countdown{flex-wrap:wrap;}
  .cta-band{padding:32px 22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .stats{grid-template-columns:1fr;}
  .cms-feature-body{padding:22px;}
  .btn{width:100%;}
  .hero-actions .btn,.cta-actions .btn{width:100%;}
  .nav-actions{gap:8px;}
}
@media screen and (max-width:520px){
  .container{padding:0 16px;}
  .brand-main{font-size:15px;}
  .brand-sub{letter-spacing:.18em;}
  .card{padding:20px;}
}

/* roulang page: category1 */
:root{
  --bg:#060A12;
  --bg-deep:#0B1220;
  --card:#101A2E;
  --cyan:#2FD8FF;
  --violet:#7C4DFF;
  --amber:#FFB020;
  --success:#2EE6A8;
  --danger:#FF5C7A;
  --text:#EAF2FF;
  --text-2:#A8B8D8;
  --text-3:#6F82A6;
  --line:rgba(120,180,255,.16);
  --line-strong:rgba(120,180,255,.32);
  --glass:rgba(12,22,40,.55);
  --glass-2:rgba(16,26,46,.78);
  --radius-lg:24px;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 24px 60px -28px rgba(0,0,0,.85),0 0 0 1px rgba(120,180,255,.06);
  --shadow-glow:0 18px 50px -22px rgba(47,216,255,.45);
  --gap:24px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  overflow-x:hidden;
  background-image:
    radial-gradient(900px 520px at 82% -6%,rgba(47,216,255,.14),transparent 62%),
    radial-gradient(760px 480px at 6% 12%,rgba(124,77,255,.16),transparent 60%),
    linear-gradient(180deg,#060A12 0%,#070C16 48%,#060A12 100%);
  background-attachment:fixed;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(120,180,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,180,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 78%);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--cyan);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:#7FE7FF}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.2px}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 20px;
  position:relative;
  z-index:2;
}
.container-wide{max-width:1400px}
.section{padding:96px 0;position:relative}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;color:var(--cyan);
  text-transform:uppercase;font-weight:600;margin-bottom:14px;
  padding:6px 14px;border-radius:999px;
  background:rgba(47,216,255,.08);border:1px solid rgba(47,216,255,.24);
}
.section-title{font-size:clamp(26px,3vw,38px);margin-bottom:14px}
.section-desc{color:var(--text-2);font-size:16px;max-width:720px}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);border:0;margin:0}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease,filter .22s ease;
}
.btn i{font-size:14px}
.btn-primary{
  color:#04121A;
  background:linear-gradient(120deg,var(--cyan) 0%,#63E4FF 46%,var(--violet) 140%);
  box-shadow:0 14px 38px -16px rgba(47,216,255,.75),inset 0 0 0 1px rgba(255,255,255,.18);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);color:#04121A}
.btn-primary:active{transform:translateY(1px)}
.btn-amber{
  color:#21160A;
  background:linear-gradient(120deg,var(--amber) 0%,#FFD37A 100%);
  box-shadow:0 14px 38px -18px rgba(255,176,32,.8);
}
.btn-amber:hover{filter:brightness(1.06);transform:translateY(-2px);color:#21160A}
.btn-ghost{
  color:var(--text);
  background:var(--glass);
  border-color:var(--line-strong);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:rgba(47,216,255,.14);border-color:rgba(47,216,255,.55);transform:translateY(-2px);color:var(--text)}
.btn-link{color:var(--cyan);padding:0;background:none;border:0;font-weight:600;display:inline-flex;align-items:center;gap:8px}
.btn-link i{transition:transform .22s ease}
.btn-link:hover i{transform:translateX(4px)}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px}
.btn-lg{padding:16px 34px;font-size:16px}
.btn-block{width:100%}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--cyan);outline-offset:3px;
}
.btn[disabled],.btn.disabled{filter:grayscale(.7);opacity:.5;pointer-events:none}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,10,18,.62);
  backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease,padding .3s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,216,255,.55),rgba(124,77,255,.45),transparent);
  opacity:0;transition:opacity .3s ease;
}
.site-header.is-scrolled{background:rgba(6,10,18,.92);box-shadow:0 18px 44px -32px rgba(0,0,0,.95)}
.site-header.is-scrolled::after{opacity:1}
.nav-wrap{display:flex;align-items:center;gap:26px;min-height:74px;transition:min-height .3s ease}
.site-header.is-scrolled .nav-wrap{min-height:64px}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;color:#04121A;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  box-shadow:0 12px 30px -14px rgba(47,216,255,.85);
}
.brand-text{display:flex;flex-direction:column;line-height:1.16}
.brand-main{font-size:17px;font-weight:700;letter-spacing:.5px}
.brand-sub{font-size:11px;letter-spacing:.32em;color:var(--cyan);font-weight:600}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-main a{
  position:relative;color:var(--text-2);font-size:15px;font-weight:500;
  padding:9px 14px;border-radius:999px;transition:color .22s ease,background .22s ease,transform .22s ease;
}
.nav-main a:hover{color:var(--text);background:rgba(120,180,255,.1);transform:translateY(-1px)}
.nav-main a.active{color:#04121A;background:linear-gradient(120deg,rgba(47,216,255,.95),rgba(124,77,255,.85));font-weight:600;box-shadow:0 10px 26px -14px rgba(47,216,255,.9)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;cursor:pointer;
  color:var(--text);background:var(--glass);border:1px solid var(--line-strong);font-size:16px;
}
.nav-toggle:hover{background:rgba(47,216,255,.14)}

/* ---------- Drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,6,12,.72);backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(360px,88vw);z-index:90;
  background:linear-gradient(180deg,#0B1220,#080E1A);
  border-left:1px solid var(--line-strong);
  transform:translateX(102%);transition:transform .34s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:24px 22px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:38px;height:38px;border-radius:11px;background:var(--glass);border:1px solid var(--line-strong);color:var(--text);cursor:pointer}
.drawer-title{font-size:12px;letter-spacing:.24em;color:var(--text-3);margin:18px 0 10px}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 16px;border-radius:14px;color:var(--text-2);font-size:15px;
  border:1px solid transparent;transition:all .22s ease;
}
.drawer-nav a:hover{background:rgba(120,180,255,.1);color:var(--text);border-color:var(--line)}
.drawer-nav a.active{color:var(--text);background:rgba(47,216,255,.14);border-color:rgba(47,216,255,.45)}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;padding-top:22px;border-top:1px solid var(--line)}

/* ---------- Hero ---------- */
.hero{
  position:relative;padding:88px 0 76px;overflow:hidden;
  background-image:linear-gradient(90deg,rgba(6,10,18,.95) 0%,rgba(6,10,18,.78) 52%,rgba(6,10,18,.62) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(620px 340px at 78% 18%,rgba(47,216,255,.2),transparent 68%),
             radial-gradient(520px 300px at 10% 90%,rgba(124,77,255,.22),transparent 70%);
}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:52px;align-items:center;position:relative;z-index:2}
.hero h1{font-size:clamp(32px,4.2vw,52px);line-height:1.2;margin-bottom:18px}
.hero h1 .hl{
  background:linear-gradient(110deg,var(--cyan),#B79CFF 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{color:var(--text-2);font-size:17px;max-width:620px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-meta{display:flex;flex-wrap:wrap;gap:22px;padding-top:22px;border-top:1px solid var(--line)}
.hero-meta div{min-width:120px}
.hero-meta b{display:block;font-size:22px;font-variant-numeric:tabular-nums;color:var(--text)}
.hero-meta span{font-size:13px;color:var(--text-3)}

.glass-card{
  background:var(--glass-2);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px);
  padding:26px;
}
.entry-panel h3{font-size:19px;margin-bottom:6px}
.entry-panel .panel-tip{color:var(--text-3);font-size:13px;margin-bottom:20px}
.entry-tabs{display:flex;gap:8px;margin-bottom:18px;flex-wrap:wrap}
.entry-tab{
  font-size:13px;padding:8px 14px;border-radius:999px;color:var(--text-2);
  background:rgba(120,180,255,.08);border:1px solid var(--line);cursor:pointer;transition:all .22s ease;
}
.entry-tab:hover{color:var(--text);border-color:var(--line-strong)}
.entry-tab.is-active{color:#04121A;background:linear-gradient(120deg,var(--cyan),#79E9FF);border-color:transparent;font-weight:600}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:7px;font-weight:500}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border-radius:var(--radius-sm);
  background:rgba(6,10,18,.72);border:1px solid var(--line);
  color:var(--text);font-size:15px;transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:rgba(47,216,255,.7);box-shadow:0 0 0 4px rgba(47,216,255,.14);outline:none;background:rgba(6,10,18,.9);
}
.field .hint{font-size:12px;color:var(--text-3);margin-top:6px}
.field .err{font-size:12px;color:var(--danger);margin-top:6px;display:none}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:rgba(255,92,122,.7)}
.field.has-error .err{display:block}
.checkline{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--text-2);margin:6px 0 18px}
.checkline input{width:16px;height:16px;margin-top:3px;accent-color:var(--cyan)}
.form-note{font-size:12px;color:var(--text-3);text-align:center;margin-top:12px}
.form-state{margin-top:14px;font-size:13.5px;border-radius:12px;padding:11px 14px;display:none}
.form-state.ok{display:block;background:rgba(46,230,168,.12);border:1px solid rgba(46,230,168,.4);color:#8CF2CE}
.form-state.bad{display:block;background:rgba(255,92,122,.12);border:1px solid rgba(255,92,122,.4);color:#FFB3C3}

/* ---------- Breadcrumb ---------- */
.crumb-bar{background:rgba(8,13,24,.72);border-bottom:1px solid var(--line)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:16px 0;font-size:14px;color:var(--text-3)}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--cyan)}
.crumb .sep{color:var(--text-3);opacity:.6}
.crumb .now{color:var(--cyan);font-weight:600}

/* ---------- Steps timeline ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;position:relative}
.steps::before{
  content:"";position:absolute;top:34px;left:6%;right:6%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,216,255,.5),rgba(124,77,255,.5),transparent);
}
.step{position:relative;padding-top:6px}
.step-num{
  width:54px;height:54px;border-radius:16px;display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;font-variant-numeric:tabular-nums;
  background:linear-gradient(140deg,rgba(47,216,255,.22),rgba(124,77,255,.22));
  border:1px solid rgba(47,216,255,.42);color:var(--text);
  box-shadow:0 14px 34px -18px rgba(47,216,255,.9);margin-bottom:18px;
  position:relative;z-index:2;
}
.step h3{font-size:18px;margin-bottom:9px}
.step p{color:var(--text-2);font-size:14.5px}
.step .tagline{display:inline-block;margin-top:12px;font-size:12px;color:var(--cyan);border:1px solid rgba(47,216,255,.3);border-radius:999px;padding:4px 11px;background:rgba(47,216,255,.08)}

/* ---------- Two column ---------- */
.two-col{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
.panel{
  background:linear-gradient(160deg,rgba(16,26,46,.92),rgba(11,18,32,.9));
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px;box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.panel::before{
  content:"";position:absolute;top:0;left:0;width:3px;height:100%;
  background:linear-gradient(180deg,var(--cyan),transparent 80%);
}
.panel h3{font-size:20px;margin-bottom:10px}
.panel > p{color:var(--text-2);font-size:15px;margin-bottom:20px}
.check-list li{display:flex;gap:12px;align-items:flex-start;padding:11px 0;border-bottom:1px dashed rgba(120,180,255,.14);color:var(--text-2);font-size:14.5px}
.check-list li:last-child{border-bottom:0}
.check-list i{color:var(--cyan);font-size:14px;margin-top:5px}
.check-list b{color:var(--text);font-weight:600}

/* ---------- Entry cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.entry-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.entry-card:hover{transform:translateY(-6px);border-color:rgba(47,216,255,.45);box-shadow:var(--shadow-glow)}
.entry-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.entry-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.entry-card:hover .thumb img{transform:scale(1.05)}
.entry-card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,18,.05),rgba(6,10,18,.75))}
.entry-card .badge{
  position:absolute;top:14px;left:14px;z-index:2;
  font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px;
  background:rgba(6,10,18,.72);border:1px solid rgba(47,216,255,.45);color:var(--cyan);backdrop-filter:blur(6px);
}
.entry-card .body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.entry-card h3{font-size:19px}
.entry-card p{color:var(--text-2);font-size:14.5px}
.entry-card .foot{margin-top:auto;padding-top:6px}

/* ---------- Table ---------- */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  background:linear-gradient(160deg,rgba(16,26,46,.86),rgba(9,15,26,.92));box-shadow:var(--shadow);
}
.table-scroll{overflow-x:auto}
table.data{width:100%;border-collapse:collapse;min-width:680px}
table.data thead th{
  text-align:left;font-size:13px;letter-spacing:.1em;color:var(--text-3);
  padding:16px 22px;background:rgba(9,15,26,.9);border-bottom:1px solid var(--line);font-weight:600;
}
table.data td{padding:18px 22px;border-bottom:1px solid rgba(120,180,255,.1);color:var(--text-2);font-size:14.5px;vertical-align:top}
table.data tbody tr:last-child td{border-bottom:0}
table.data tbody tr:hover td{background:rgba(47,216,255,.05)}
table.data td strong{color:var(--text);font-weight:600}
.pill{display:inline-block;font-size:12px;padding:4px 11px;border-radius:999px;border:1px solid var(--line-strong);color:var(--text-2);background:rgba(120,180,255,.08)}
.pill.cyan{color:var(--cyan);border-color:rgba(47,216,255,.42);background:rgba(47,216,255,.1)}
.pill.amber{color:var(--amber);border-color:rgba(255,176,32,.4);background:rgba(255,176,32,.1)}
.pill.green{color:var(--success);border-color:rgba(46,230,168,.4);background:rgba(46,230,168,.1)}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:14px;max-width:920px;margin:0 auto}
.faq-item{
  background:var(--glass-2);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;position:relative;transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--cyan),rgba(124,77,255,.2));opacity:.75}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item.is-open{border-color:rgba(47,216,255,.45);box-shadow:var(--shadow-glow)}
.faq-q{
  width:100%;text-align:left;background:none;border:0;cursor:pointer;
  padding:20px 24px;display:flex;align-items:center;justify-content:space-between;gap:18px;
  color:var(--text);font-size:16.5px;font-weight:600;line-height:1.55;
}
.faq-q .ic{
  flex:0 0 30px;width:30px;height:30px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);color:var(--cyan);font-size:12px;transition:transform .3s ease,background .3s ease;
}
.faq-item.is-open .faq-q .ic{background:rgba(47,216,255,.16);transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease}
.faq-a-inner{padding:0 24px 22px 24px;color:var(--text-2);font-size:15px}
.faq-a-inner p{margin:0}
.faq-a-inner ul{margin-top:10px;display:flex;flex-direction:column;gap:8px}
.faq-a-inner li{position:relative;padding-left:18px;font-size:14.5px;color:var(--text-2)}
.faq-a-inner li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--cyan);opacity:.8}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;border-radius:28px;overflow:hidden;
  border:1px solid var(--line-strong);
  background:linear-gradient(120deg,rgba(11,18,32,.96),rgba(18,22,48,.94)),
             radial-gradient(520px 260px at 88% 12%,rgba(47,216,255,.24),transparent 70%);
  padding:52px;display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:38px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(420px 240px at 6% 100%,rgba(124,77,255,.24),transparent 70%);
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:clamp(24px,3vw,34px);margin-bottom:14px}
.cta-band p{color:var(--text-2);font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px}
.contact-card{
  background:var(--glass-2);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;box-shadow:var(--shadow);backdrop-filter:blur(12px);
}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:20px;padding:72px 0 30px;position:relative;
  background:linear-gradient(180deg,rgba(8,13,24,.4),rgba(4,7,14,.96));
  border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));gap:40px}
.footer-brand p{color:var(--text-2);font-size:14.5px;margin-top:18px;max-width:360px}
.footer-title{font-size:13px;letter-spacing:.16em;color:var(--text-3);font-weight:600;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{color:var(--text-2);font-size:14.5px}
.footer-links a:hover{color:var(--cyan);padding-left:3px}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  color:var(--text-3);font-size:13.5px;
}
.to-top{
  position:fixed;right:22px;bottom:24px;z-index:70;
  width:46px;height:46px;border-radius:14px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  color:var(--text);background:var(--glass-2);border:1px solid var(--line-strong);
  backdrop-filter:blur(10px);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all .3s ease;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:rgba(47,216,255,.18);border-color:rgba(47,216,255,.6)}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .nav-main a{padding:8px 11px;font-size:14.5px}
  .container{max-width:1140px}
}
@media (max-width:1023px){
  .nav-main{display:none}
  .nav-actions .btn-ghost{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .section{padding:76px 0}
  .section-tight{padding:56px 0}
  .hero{padding:66px 0 60px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps::before{display:none}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{grid-template-columns:1fr;padding:38px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:767px){
  body{font-size:15.5px;line-height:1.78}
  .container{padding:0 16px}
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  .hero{padding:52px 0 46px}
  .hero h1{font-size:clamp(28px,7.4vw,36px)}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{flex:1 1 auto}
  .hero-meta{gap:16px}
  .glass-card,.panel,.contact-card{padding:22px}
  .two-col{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr;gap:26px}
  .card-grid{grid-template-columns:1fr}
  .cta-band{padding:28px;border-radius:22px}
  .cta-actions .btn{width:100%}
  .faq-q{font-size:15.5px;padding:17px 18px}
  .faq-a-inner{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .brand-main{font-size:16px}
  .to-top{right:16px;bottom:18px}
}
@media (max-width:520px){
  .brand-sub{letter-spacing:.22em}
  .btn{padding:12px 20px;font-size:14.5px}
  table.data thead th,table.data td{padding:14px 16px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --bg:#060A12;
  --panel:#0B1220;
  --card:#101A2E;
  --cyan:#2FD8FF;
  --violet:#7C4DFF;
  --amber:#FFB020;
  --ok:#2EE6A8;
  --danger:#FF5C7A;
  --text:#EAF2FF;
  --text-2:#A8B8D8;
  --text-3:#6F82A6;
  --border:rgba(120,180,255,.16);
  --border-strong:rgba(120,180,255,.32);
  --glass:rgba(12,22,40,.55);
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:12px;
  --shadow-card:0 24px 60px -28px rgba(0,0,0,.85), 0 0 0 1px rgba(120,180,255,.06);
  --shadow-glow:0 0 0 1px rgba(47,216,255,.28), 0 18px 44px -22px rgba(47,216,255,.55);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.78;
  font-weight:400;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
body.nav-locked{overflow:hidden}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:2px;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.01em}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.25em}
hr{border:0;border-top:1px solid var(--border);margin:32px 0}
::selection{background:rgba(47,216,255,.28)}

/* ---------- 通用 ---------- */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:88px 0}
.section-sm{padding:56px 0}
.band-panel{background:linear-gradient(180deg,rgba(11,18,32,.9),rgba(6,10,18,.2))}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);font-weight:600;margin-bottom:14px;
}
.eyebrow i{font-size:12px}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:clamp(26px,3.2vw,38px);margin-bottom:14px}
.section-head p{color:var(--text-2);margin:0;font-size:16px}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--border-strong),transparent)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn i{font-size:14px}
.btn-primary{
  color:#03131C;
  background:linear-gradient(120deg,var(--cyan),#7FE9FF 45%,var(--violet) 130%);
  box-shadow:0 14px 34px -16px rgba(47,216,255,.75);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 44px -16px rgba(47,216,255,.9)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  color:var(--text);
  background:var(--glass);
  border-color:var(--border-strong);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:rgba(47,216,255,.12);border-color:rgba(47,216,255,.5);transform:translateY(-2px)}
.btn-amber{
  color:#2A1700;
  background:linear-gradient(120deg,var(--amber),#FFD073);
  box-shadow:0 14px 34px -18px rgba(255,176,32,.8);
}
.btn-amber:hover{transform:translateY(-2px)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-lg{padding:16px 30px;font-size:16px}
.btn-link{
  display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-weight:600;
}
.btn-link i{transition:transform .2s ease}
.btn-link:hover i{transform:translateX(4px)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,10,18,.62);
  backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.scrolled{
  background:rgba(5,9,16,.92);
  border-bottom:1px solid rgba(47,216,255,.26);
  box-shadow:0 18px 40px -30px rgba(47,216,255,.6);
}
.nav-wrap{display:flex;align-items:center;gap:26px;min-height:76px;transition:min-height .25s ease}
.site-header.scrolled .nav-wrap{min-height:64px}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:14px;display:grid;place-items:center;
  color:#04141D;font-size:17px;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  box-shadow:0 12px 28px -14px rgba(47,216,255,.8);
}
.brand-text{display:flex;flex-direction:column;line-height:1.18}
.brand-main{font-size:16px;font-weight:700;letter-spacing:.06em}
.brand-sub{font-size:12px;color:var(--text-3);letter-spacing:.28em}
.nav-main{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-main a{
  position:relative;padding:10px 14px;border-radius:999px;
  font-size:14.5px;color:var(--text-2);font-weight:500;
}
.nav-main a:hover{color:var(--text);background:rgba(47,216,255,.1)}
.nav-main a.active{color:var(--text);background:rgba(47,216,255,.14);box-shadow:inset 0 0 0 1px rgba(47,216,255,.34)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:var(--glass);border:1px solid var(--border);color:var(--text);
  font-size:16px;cursor:pointer;
}
.nav-backdrop{
  position:fixed;inset:0;background:rgba(3,7,14,.7);
  backdrop-filter:blur(4px);opacity:0;pointer-events:none;transition:opacity .25s ease;z-index:55;
}
body.nav-open .nav-backdrop{opacity:1;pointer-events:auto}

/* ---------- 文章横幅 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:64px 0 52px;
  background-image:linear-gradient(120deg,rgba(4,8,16,.88),rgba(8,14,28,.82)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--border);
}
.page-hero::after{
  content:"";position:absolute;right:-140px;top:-160px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,216,255,.24),transparent 68%);pointer-events:none;
}
.page-hero::before{
  content:"";position:absolute;left:-120px;bottom:-200px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,77,255,.22),transparent 70%);pointer-events:none;
}
.crumbs{position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:var(--text-3);margin-bottom:20px}
.crumbs a:hover{color:var(--cyan)}
.crumbs .sep{opacity:.5}
.crumbs .current{color:var(--text-2);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-hero h1{
  position:relative;font-size:clamp(28px,3.6vw,44px);font-weight:800;max-width:900px;margin-bottom:16px;
}
.hero-lead{position:relative;color:var(--text-2);max-width:720px;margin:0;font-size:16px}

/* ---------- 文章主体 ---------- */
.article-wrap{display:flex;justify-content:center;padding:56px 0 72px}
.article-shell{width:100%;max-width:880px}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-bottom:28px;color:var(--text-3);font-size:13.5px;
}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.04em;
  background:rgba(47,216,255,.12);color:var(--cyan);border:1px solid rgba(47,216,255,.28);
}
.chip-violet{background:rgba(124,77,255,.14);color:#C3AEFF;border-color:rgba(124,77,255,.32)}
.chip-amber{background:rgba(255,176,32,.13);color:var(--amber);border-color:rgba(255,176,32,.3)}
.chip-plain{background:rgba(120,180,255,.08);color:var(--text-2);border-color:var(--border)}
.meta-item{display:inline-flex;align-items:center;gap:6px}

.article-body{
  color:#DCE7FB;
  font-size:16.5px;
  line-height:1.86;
}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  font-size:clamp(22px,2.4vw,28px);margin:44px 0 16px;padding-left:16px;position:relative;color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--cyan),var(--violet));
}
.article-body h3{font-size:20px;margin:32px 0 12px;color:var(--text)}
.article-body h4{font-size:17px;margin:24px 0 10px;color:var(--text-2)}
.article-body p{margin:0 0 20px}
.article-body a{color:var(--cyan);border-bottom:1px dashed rgba(47,216,255,.5)}
.article-body a:hover{color:#8CEBFF}
.article-body ul,.article-body ol{padding-left:1.3em;margin:0 0 22px}
.article-body li{margin-bottom:10px}
.article-body li::marker{color:var(--cyan)}
.article-body blockquote{
  margin:26px 0;padding:20px 24px;border-radius:var(--radius-md);
  background:linear-gradient(120deg,rgba(47,216,255,.08),rgba(124,77,255,.07));
  border-left:3px solid var(--cyan);color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  border-radius:var(--radius-md);border:1px solid var(--border);margin:24px 0;width:100%;
}
.article-body table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;
  border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;
}
.article-body th,.article-body td{
  padding:12px 16px;border-bottom:1px solid var(--border);text-align:left;vertical-align:top;
}
.article-body th{background:rgba(47,216,255,.08);color:var(--text);font-weight:600}
.article-body tr:last-child td{border-bottom:0}
.article-body code{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  font-size:14px;padding:2px 7px;border-radius:6px;
  background:rgba(120,180,255,.12);color:#9FE9FF;
}
.article-body pre{
  margin:24px 0;padding:20px 22px;border-radius:var(--radius-md);
  background:rgba(6,12,24,.92);border:1px solid var(--border);overflow-x:auto;
}
.article-body pre code{background:none;padding:0;color:#BBD4F5}

.article-empty{
  padding:40px 28px;border-radius:var(--radius-md);text-align:center;
  background:var(--card);border:1px solid var(--border);box-shadow:var(--shadow-card);
}
.article-empty i{font-size:30px;color:var(--amber);margin-bottom:14px;display:block}
.article-empty h2{font-size:22px;margin-bottom:10px}
.article-empty p{color:var(--text-2);margin-bottom:20px}

/* ---------- 提示卡 ---------- */
.notice-card{
  margin:36px 0;padding:22px 24px;border-radius:var(--radius-md);
  background:var(--glass);border:1px solid var(--border);backdrop-filter:blur(10px);
}
.notice-card h3{font-size:17px;margin-bottom:12px;display:flex;align-items:center;gap:9px}
.notice-card h3 i{color:var(--cyan)}
.notice-card ul{margin:0;padding-left:1.2em;color:var(--text-2);font-size:15px}
.notice-card li{margin-bottom:8px}

/* ---------- 相关推荐 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(47,216,255,.42);box-shadow:var(--shadow-glow)}
.rel-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#0A1424}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(6,10,18,.85));
}
.rel-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:17px}
.rel-body p{margin:0;color:var(--text-2);font-size:14.5px;flex:1}
.rel-body .btn-link{font-size:14px}

/* ---------- 返回 / CTA ---------- */
.back-bar{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  margin-top:36px;padding:20px 24px;border-radius:var(--radius-md);
  background:var(--glass);border:1px solid var(--border);
}
.back-bar span{color:var(--text-2);font-size:14.5px}
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  padding:48px 40px;background:linear-gradient(120deg,rgba(47,216,255,.14),rgba(124,77,255,.16)),#0B1220;
  border:1px solid rgba(47,216,255,.24);
}
.cta-band h2{font-size:clamp(24px,2.8vw,32px);margin-bottom:12px}
.cta-band p{color:var(--text-2);max-width:640px;margin-bottom:24px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:24px;padding:64px 0 32px;
  background:linear-gradient(180deg,rgba(11,18,32,.6),rgba(4,7,14,.95));
  border-top:1px solid var(--border);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand p{color:var(--text-2);margin:16px 0 0;font-size:14.5px;max-width:320px}
.footer-title{font-size:14px;font-weight:700;letter-spacing:.06em;margin-bottom:16px;color:var(--text)}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:11px}
.footer-links a{color:var(--text-2);font-size:14.5px}
.footer-links a:hover{color:var(--cyan)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  margin-top:44px;padding-top:22px;border-top:1px solid var(--border);
  color:var(--text-3);font-size:13.5px;
}
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:50;
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--border-strong);color:var(--text);
  backdrop-filter:blur(10px);cursor:pointer;opacity:0;pointer-events:none;
  transition:opacity .25s ease,transform .25s ease,background .25s ease;
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{background:rgba(47,216,255,.16);transform:translateY(-3px)}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .nav-main{
    position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;z-index:70;
    flex-direction:column;align-items:stretch;gap:6px;margin-left:0;
    padding:92px 22px 32px;background:rgba(8,14,26,.98);
    border-left:1px solid var(--border);backdrop-filter:blur(18px);
    transform:translateX(105%);transition:transform .28s ease;overflow-y:auto;
  }
  body.nav-open .nav-main{transform:translateX(0)}
  .nav-main a{padding:14px 16px;border-radius:14px;font-size:15.5px}
  .nav-toggle{display:grid;place-items:center}
  .nav-actions .btn-ghost{display:none}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:64px 0}
}
@media screen and (max-width:767px){
  body{font-size:15.5px}
  .nav-actions .btn-primary{display:none}
  .page-hero{padding:44px 0 36px}
  .article-wrap{padding:40px 0 56px}
  .rel-grid{grid-template-columns:1fr}
  .cta-band{padding:34px 24px}
  .back-bar{flex-direction:column;align-items:flex-start}
  .section{padding:52px 0}
  .section-sm{padding:40px 0}
}
@media screen and (max-width:520px){
  .container{padding:0 16px}
  .brand-sub{letter-spacing:.18em}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .btn{width:100%;justify-content:center}
  .cta-actions{flex-direction:column}
  .back-bar .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}

/* roulang page: category2 */
:root{
  --bg:#060A12;
  --panel:#0B1220;
  --card:#101A2E;
  --cyan:#2FD8FF;
  --purple:#7C4DFF;
  --amber:#FFB020;
  --ok:#2EE6A8;
  --danger:#FF5C7A;
  --text:#EAF2FF;
  --muted:#A8B8D8;
  --weak:#6F82A6;
  --border:rgba(120,180,255,.16);
  --border-strong:rgba(120,180,255,.30);
  --glass:rgba(12,22,40,.55);
  --radius-lg:22px;
  --radius-md:18px;
  --radius-sm:12px;
  --shadow-lg:0 28px 70px rgba(3,8,20,.60);
  --shadow-md:0 16px 44px rgba(3,8,20,.45);
  --container:1240px;
}
*,*::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","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(760px 420px at 12% -6%, rgba(47,216,255,.13), transparent 68%),
    radial-gradient(680px 420px at 92% 4%, rgba(124,77,255,.13), transparent 70%);
  z-index:0;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 14px}
h1,h2,h3,h4{margin:0 0 14px;line-height:1.32;font-weight:700;letter-spacing:.2px}
h1{font-size:clamp(30px,4.4vw,52px);font-weight:800}
h2{font-size:clamp(24px,3vw,38px);font-weight:750}
h3{font-size:clamp(18px,1.6vw,22px)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
::selection{background:rgba(47,216,255,.28);color:#fff}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px;position:relative;z-index:2}
.section{padding:88px 0;position:relative;z-index:1}
.section-alt{background:linear-gradient(180deg,rgba(11,18,32,.75),rgba(6,10,18,.20));border-top:1px solid rgba(120,180,255,.08);border-bottom:1px solid rgba(120,180,255,.08)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:2px;color:var(--cyan);text-transform:uppercase;margin-bottom:12px;font-weight:600}
.section-head p{color:var(--muted);font-size:16px;margin:0}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ============ 徽章 / 标签 ============ */
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;font-size:13px;font-weight:600;letter-spacing:.4px;border:1px solid var(--border);background:rgba(47,216,255,.08);color:var(--cyan)}
.badge-purple{background:rgba(124,77,255,.12);border-color:rgba(124,77,255,.32);color:#C9B6FF}
.badge-amber{background:rgba(255,176,32,.12);border-color:rgba(255,176,32,.32);color:var(--amber)}
.badge-ok{background:rgba(46,230,168,.12);border-color:rgba(46,230,168,.32);color:var(--ok)}
.badge-danger{background:rgba(255,92,122,.12);border-color:rgba(255,92,122,.32);color:var(--danger)}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 24px;border-radius:12px;font-weight:600;font-size:15px;line-height:1.2;border:1px solid transparent;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;white-space:nowrap}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.btn-primary{background:linear-gradient(120deg,var(--cyan),var(--purple));color:#04121F;box-shadow:0 14px 34px rgba(47,216,255,.30)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 46px rgba(47,216,255,.42)}
.btn-primary:active{transform:translateY(0) scale(.985)}
.btn-ghost{background:rgba(12,22,40,.55);border-color:var(--border);color:var(--text);backdrop-filter:blur(10px)}
.btn-ghost:hover{background:rgba(47,216,255,.12);border-color:rgba(47,216,255,.45);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0) scale(.985)}
.btn-amber{background:linear-gradient(120deg,#FFB020,#FF8A3D);color:#20140A;box-shadow:0 14px 34px rgba(255,176,32,.28)}
.btn-amber:hover{transform:translateY(-2px);box-shadow:0 20px 44px rgba(255,176,32,.38)}
.btn-sm{padding:9px 17px;font-size:14px;border-radius:999px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-weight:600;font-size:15px}
.link-arrow i{transition:transform .22s ease}
.link-arrow:hover i{transform:translateX(5px)}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:90;background:rgba(6,10,18,.55);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid transparent;transition:background .3s ease,border-color .3s ease,box-shadow .3s ease}
.site-header.scrolled{background:rgba(6,10,18,.90);border-bottom-color:rgba(47,216,255,.22);box-shadow:0 14px 40px rgba(3,8,20,.55)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:76px;transition:min-height .3s ease}
.site-header.scrolled .nav-wrap{min-height:64px}
.brand{display:inline-flex;align-items:center;gap:12px}
.brand-mark{width:42px;height:42px;flex:0 0 42px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(140deg,rgba(47,216,255,.22),rgba(124,77,255,.28));border:1px solid rgba(47,216,255,.38);color:#EAF9FF;font-size:17px;box-shadow:0 0 22px rgba(47,216,255,.28) inset,0 10px 24px rgba(47,216,255,.16)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-main{font-size:17px;font-weight:800;letter-spacing:.6px}
.brand-sub{font-size:11.5px;letter-spacing:3.6px;color:var(--cyan);font-weight:600}
.nav-main{display:flex;align-items:center;gap:4px}
.nav-main a{position:relative;padding:9px 15px;border-radius:999px;font-size:15px;color:var(--muted);font-weight:500;transition:color .2s ease,background .2s ease,transform .2s ease}
.nav-main a:hover{color:var(--text);background:rgba(47,216,255,.09);transform:translateY(-1px)}
.nav-main a.active{color:#04121F;background:linear-gradient(120deg,var(--cyan),var(--purple));box-shadow:0 10px 26px rgba(47,216,255,.30);font-weight:700}
.nav-main a:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;background:rgba(12,22,40,.7);border:1px solid var(--border);color:var(--text)}
.nav-toggle:hover{border-color:rgba(47,216,255,.5)}
.drawer-cta{display:none}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:72px 0 84px;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;border-bottom:1px solid rgba(120,180,255,.10)}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(118deg,rgba(6,10,18,.94) 0%,rgba(6,10,18,.80) 42%,rgba(9,18,36,.72) 100%);z-index:0}
.hero::after{content:"";position:absolute;inset:0;z-index:1;opacity:.5;background-image:linear-gradient(rgba(120,180,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(120,180,255,.07) 1px,transparent 1px);background-size:52px 52px;mask-image:radial-gradient(600px 340px at 24% 34%,#000 0%,transparent 78%);-webkit-mask-image:radial-gradient(600px 340px at 24% 34%,#000 0%,transparent 78%)}
.hero-grid{row-gap:34px}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--weak);margin-bottom:16px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb .current{color:var(--text);font-weight:600}
.hero .badge{margin-bottom:16px}
.hero h1{margin-bottom:16px}
.hero h1 .hl{background:linear-gradient(120deg,var(--cyan),var(--purple));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:16.5px;color:var(--muted);max-width:620px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px 24px}
.hero-facts li{display:inline-flex;align-items:center;gap:9px;font-size:14.5px;color:var(--muted)}
.hero-facts i{color:var(--cyan);font-size:14px}
.glass-card{background:var(--glass);border:1px solid var(--border);border-radius:var(--radius-lg);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--shadow-lg)}
.status-card{padding:26px 26px 22px}
.status-card .card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}
.status-card .card-head p{margin:0;font-size:15px;font-weight:700;letter-spacing:.5px}
.status-list li{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:13px 0;border-bottom:1px dashed rgba(120,180,255,.16);font-size:14.5px}
.status-list li:last-child{border-bottom:none}
.status-list .label{color:var(--muted);display:inline-flex;align-items:center;gap:9px}
.status-list .label i{color:var(--cyan);width:16px;text-align:center}
.status-list .value{font-weight:700;font-variant-numeric:tabular-nums}
.value-ok{color:var(--ok)}
.status-note{margin:14px 0 0;font-size:12.5px;color:var(--weak);line-height:1.7}

/* ============ 风险矩阵 ============ */
.risk-matrix{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:rgba(120,180,255,.16);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md)}
.risk-cell{background:linear-gradient(180deg,rgba(16,26,46,.96),rgba(9,15,28,.96));padding:28px 28px 30px;transition:background .3s ease,transform .3s ease}
.risk-cell:hover{background:linear-gradient(180deg,rgba(20,34,58,.98),rgba(11,18,34,.98))}
.risk-cell .cell-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.risk-num{font-size:13px;font-weight:800;letter-spacing:1.4px;color:var(--weak);font-variant-numeric:tabular-nums}
.risk-cell h3{font-size:19px;margin-bottom:10px}
.risk-cell .symptom{color:var(--muted);font-size:14.6px;margin-bottom:14px}
.risk-cell .advice{display:flex;gap:10px;padding:13px 15px;border-radius:14px;background:rgba(47,216,255,.07);border:1px solid rgba(47,216,255,.18);font-size:14.4px;color:var(--text)}
.risk-cell .advice i{color:var(--cyan);margin-top:4px}

/* ============ 验证流程 ============ */
.verify-grid{align-items:center;row-gap:34px}
.verify-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow-lg)}
.verify-media img{width:100%;aspect-ratio:16/11;object-fit:cover;transform:scale(1.01);transition:transform .5s ease}
.verify-media:hover img{transform:scale(1.05)}
.verify-media .media-tag{position:absolute;left:16px;bottom:16px;padding:7px 15px;border-radius:999px;background:rgba(6,10,18,.72);border:1px solid var(--border);font-size:13px;color:var(--text);backdrop-filter:blur(8px)}
.step-flow{position:relative;display:grid;gap:22px;margin-top:8px}
.step-item{position:relative;padding:22px 24px 22px 26px;border-radius:var(--radius-md);background:rgba(16,26,46,.72);border:1px solid var(--border);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.step-item:hover{transform:translateX(5px);border-color:rgba(47,216,255,.42);box-shadow:0 18px 40px rgba(3,8,20,.5)}
.step-item::before{content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:3px;background:linear-gradient(180deg,var(--cyan),var(--purple))}
.step-head{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.step-index{width:34px;height:34px;flex:0 0 34px;border-radius:11px;display:grid;place-items:center;background:rgba(47,216,255,.12);border:1px solid rgba(47,216,255,.34);color:var(--cyan);font-weight:800;font-size:14px;font-variant-numeric:tabular-nums}
.step-head h3{font-size:18px;margin:0}
.step-item p{margin:0;color:var(--muted);font-size:14.8px}

/* ============ 自查清单 ============ */
.checklist-grid{row-gap:34px;align-items:start}
.check-list li{display:flex;gap:13px;padding:15px 0;border-bottom:1px dashed rgba(120,180,255,.15);font-size:15.2px;color:var(--text)}
.check-list li:last-child{border-bottom:none}
.check-list i{color:var(--ok);font-size:15px;margin-top:5px;flex:0 0 auto}
.check-list .desc{display:block;color:var(--weak);font-size:13.4px;margin-top:3px}
.guard-panel{padding:26px 26px 24px;border-radius:var(--radius-lg);background:linear-gradient(180deg,rgba(16,26,46,.92),rgba(9,15,28,.92));border:1px solid var(--border);box-shadow:var(--shadow-md)}
.guard-panel h3{font-size:19px}
.guard-panel p{color:var(--muted);font-size:14.6px}
.metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:rgba(120,180,255,.14);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;margin:18px 0 20px}
.metric{background:rgba(11,18,32,.94);padding:16px 14px;text-align:center}
.metric .num{display:block;font-size:24px;font-weight:800;font-variant-numeric:tabular-nums;background:linear-gradient(120deg,var(--cyan),var(--purple));-webkit-background-clip:text;background-clip:text;color:transparent}
.metric .cap{font-size:12.6px;color:var(--weak)}

/* ============ 表格 ============ */
.table-wrap{border-radius:var(--radius-lg);border:1px solid var(--border);overflow:hidden;background:rgba(11,18,32,.7);box-shadow:var(--shadow-md)}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.data-table{width:100%;min-width:760px;border-collapse:collapse;font-size:14.6px}
table.data-table thead th{background:rgba(47,216,255,.10);color:var(--text);text-align:left;padding:15px 18px;font-weight:700;font-size:14px;letter-spacing:.5px;border-bottom:1px solid rgba(120,180,255,.20);white-space:nowrap}
table.data-table td{padding:15px 18px;border-bottom:1px solid rgba(120,180,255,.10);color:var(--muted);vertical-align:top}
table.data-table tbody tr:last-child td{border-bottom:none}
table.data-table tbody tr:hover td{background:rgba(47,216,255,.05);color:var(--text)}
table.data-table td:first-child{color:var(--text);font-weight:600}
.tip-line{display:flex;align-items:center;gap:10px;margin-top:16px;font-size:13.6px;color:var(--weak)}
.tip-line i{color:var(--amber)}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:960px}
.faq-item{border-radius:var(--radius-md);background:rgba(12,22,40,.62);border:1px solid var(--border);overflow:hidden;position:relative;transition:border-color .25s ease,box-shadow .25s ease}
.faq-item::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:linear-gradient(180deg,var(--cyan),var(--purple));opacity:.7;transition:opacity .25s ease}
.faq-item.open{border-color:rgba(47,216,255,.40);box-shadow:0 16px 40px rgba(3,8,20,.5)}
.faq-item.open::before{opacity:1}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;text-align:left;padding:19px 24px 19px 26px;background:transparent;border:none;font-size:16px;font-weight:650;color:var(--text);transition:color .2s ease}
.faq-q:hover{color:var(--cyan)}
.faq-q:focus-visible{outline:2px solid var(--cyan);outline-offset:-4px}
.faq-icon{position:relative;width:22px;height:22px;flex:0 0 22px;border-radius:50%;border:1px solid rgba(47,216,255,.42);background:rgba(47,216,255,.10)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--cyan);border-radius:2px;transform:translate(-50%,-50%);transition:transform .28s ease,opacity .28s ease}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{padding:0 26px 22px 26px;color:var(--muted);font-size:15.2px;animation:fadeUp .35s ease}
.faq-a p{margin:0}
@keyframes fadeUp{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

/* ============ 咨询 CTA ============ */
.cta-band{position:relative;overflow:hidden;border-radius:26px;border:1px solid rgba(47,216,255,.24);background:linear-gradient(135deg,rgba(16,26,46,.96),rgba(10,17,32,.96));padding:40px;box-shadow:var(--shadow-lg)}
.cta-band::after{content:"";position:absolute;width:420px;height:420px;right:-140px;top:-180px;background:radial-gradient(circle,rgba(124,77,255,.28),transparent 66%);pointer-events:none}
.cta-grid{row-gap:34px;align-items:center}
.cta-copy h2{margin-bottom:12px}
.cta-copy p{color:var(--muted);font-size:15.6px;max-width:520px}
.cta-points{margin-top:20px;display:grid;gap:10px}
.cta-points li{display:flex;align-items:center;gap:10px;font-size:14.6px;color:var(--muted)}
.cta-points i{color:var(--cyan)}
.form-card{padding:26px;border-radius:var(--radius-lg);background:rgba(9,15,28,.86);border:1px solid var(--border);backdrop-filter:blur(12px)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.6px;color:var(--muted);margin-bottom:7px;font-weight:600}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border-radius:var(--radius-sm);background:rgba(6,10,18,.72);border:1px solid var(--border);color:var(--text);font-size:14.6px;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease}
.field textarea{resize:vertical;min-height:106px}
.field input::placeholder,.field textarea::placeholder{color:#5C6E90}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:rgba(47,216,255,.65);box-shadow:0 0 0 3px rgba(47,216,255,.16);background:rgba(6,10,18,.92)}
.field select option{background:#0B1220;color:var(--text)}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:13.4px;color:var(--weak);margin-bottom:18px}
.agree input{width:16px;height:16px;margin-top:4px;accent-color:#2FD8FF;flex:0 0 auto}
.form-msg{margin-top:14px;font-size:13.8px;color:var(--ok);display:none}
.form-msg.show{display:block}

/* ============ 页脚 ============ */
.site-footer{margin-top:20px;border-top:1px solid rgba(120,180,255,.14);background:linear-gradient(180deg,rgba(8,13,24,.92),rgba(6,10,18,.98));padding:62px 0 28px;position:relative;z-index:2}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;padding-bottom:36px;border-bottom:1px solid rgba(120,180,255,.12)}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{color:var(--weak);font-size:14px;max-width:340px;margin:0}
.footer-title{font-size:14px;font-weight:700;color:var(--text);letter-spacing:1px;margin-bottom:16px}
.footer-links li{margin-bottom:11px}
.footer-links a{color:var(--muted);font-size:14.2px;transition:color .2s ease,padding-left .2s ease}
.footer-links a:hover{color:var(--cyan);padding-left:5px}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding-top:22px;font-size:13.4px;color:var(--weak)}
.to-top{position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:rgba(12,22,40,.86);border:1px solid var(--border);color:var(--text);backdrop-filter:blur(10px);opacity:0;pointer-events:none;transition:opacity .3s ease,transform .3s ease,border-color .3s ease;z-index:80}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{border-color:rgba(47,216,255,.55);transform:translateY(-3px)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .nav-main a{padding:8px 11px;font-size:14.4px}
  .nav-wrap{gap:12px}
}
@media (max-width:1023px){
  .nav-toggle{display:grid;place-items:center}
  .nav-actions .btn{display:none}
  .nav-main{
    position:fixed;top:0;right:0;height:100vh;width:min(330px,86vw);
    background:rgba(8,13,24,.985);backdrop-filter:blur(16px);
    border-left:1px solid var(--border);
    display:flex;flex-direction:column;align-items:stretch;gap:6px;
    padding:96px 22px 130px;overflow-y:auto;z-index:95;
    transform:translateX(104%);transition:transform .36s cubic-bezier(.4,0,.2,1);
    box-shadow:-24px 0 60px rgba(3,8,20,.6);
  }
  .nav-main.open{transform:none}
  .nav-main a{padding:13px 16px;border-radius:14px;font-size:15.4px;border:1px solid transparent}
  .nav-main a.active{color:#04121F}
  .drawer-cta{display:grid;gap:10px;position:absolute;left:22px;right:22px;bottom:26px}
  .drawer-mask{position:fixed;inset:0;background:rgba(3,8,20,.62);opacity:0;pointer-events:none;transition:opacity .3s ease;z-index:92}
  .drawer-mask.show{opacity:1;pointer-events:auto}
  body.no-scroll{overflow:hidden}
  .section{padding:66px 0}
  .risk-matrix{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{padding:30px 24px}
}
@media (max-width:767px){
  body{font-size:15.4px}
  .container{padding:0 18px}
  .hero{padding:52px 0 62px}
  .section{padding:54px 0}
  .section-head{margin-bottom:30px}
  .hero-actions{gap:12px}
  .hero-actions .btn{flex:1 1 100%}
  .status-card{padding:22px 20px 18px}
  .risk-cell{padding:22px 20px 24px}
  .step-item{padding:20px 18px 20px 22px}
  .faq-q{padding:17px 18px 17px 22px;font-size:15.2px}
  .faq-a{padding:0 22px 20px 22px}
  .cta-band{padding:26px 18px;border-radius:20px}
  .form-card{padding:20px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:28px}
  .footer-brand p{max-width:none}
  .to-top{right:16px;bottom:18px;width:42px;height:42px}
  .metric-row{grid-template-columns:1fr}
  .metric{padding:14px}
}
@media (max-width:520px){
  .brand-main{font-size:15.5px}
  .brand-sub{letter-spacing:2.8px;font-size:10.6px}
  .brand-mark{width:38px;height:38px;flex:0 0 38px}
  h1{font-size:27px}
  .hero-facts{flex-direction:column;gap:8px}
  .badge{font-size:12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}

/* roulang page: category4 */
:root{
  --bg:#060A12;
  --panel:#0B1220;
  --card:#101A2E;
  --cyan:#2FD8FF;
  --purple:#7C4DFF;
  --amber:#FFB020;
  --success:#2EE6A8;
  --danger:#FF5C7A;
  --text:#EAF2FF;
  --muted:#A8B8D8;
  --dim:#6F82A6;
  --line:rgba(120,180,255,.16);
  --line-strong:rgba(120,180,255,.32);
  --glass:rgba(12,22,40,.55);
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow:0 24px 60px -28px rgba(0,0,0,.85), 0 0 0 1px rgba(120,180,255,.06);
  --glow-cyan:0 0 28px rgba(47,216,255,.35);
  --glow-amber:0 0 26px rgba(255,176,32,.32);
  --space-block:104px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.78;
  font-weight:400;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(760px 420px at 12% -6%, rgba(47,216,255,.12), transparent 65%),
    radial-gradient(620px 420px at 92% 4%, rgba(124,77,255,.14), transparent 62%),
    linear-gradient(rgba(255,255,255,.022) 1px, transparent 1px) 0 0/100% 68px,
    linear-gradient(90deg, rgba(255,255,255,.022) 1px, transparent 1px) 0 0/68px 100%;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--cyan);}
button{font-family:inherit;cursor:pointer;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:-.01em;}
p{margin:0;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 22px;
  position:relative;
  z-index:1;
}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  background:rgba(6,10,18,.55);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:background .28s ease,border-color .28s ease,padding .28s ease;
  padding:16px 0;
}
.site-header.is-scrolled{
  background:rgba(6,10,18,.9);
  border-bottom-color:var(--line-strong);
  padding:9px 0;
  box-shadow:0 18px 40px -30px rgba(47,216,255,.5);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:26px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.brand:hover{color:var(--text);}
.brand-mark{
  width:40px;height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:13px;
  background:linear-gradient(140deg,var(--cyan),var(--purple));
  color:#05101f;
  font-size:17px;
  box-shadow:var(--glow-cyan);
  flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.16;}
.brand-main{font-size:16px;font-weight:800;letter-spacing:.02em;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.22em;font-weight:500;}

.nav-main{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:8px;
  flex:1;
}
.nav-main a{
  position:relative;
  padding:9px 14px;
  border-radius:999px;
  font-size:14.5px;
  color:var(--muted);
  font-weight:500;
  white-space:nowrap;
  transition:color .2s ease,background .2s ease,transform .2s ease;
}
.nav-main a:hover{
  color:var(--text);
  background:rgba(47,216,255,.09);
  transform:translateY(-1px);
}
.nav-main a.active{
  color:var(--text);
  background:rgba(47,216,255,.12);
  box-shadow:inset 0 0 0 1px rgba(47,216,255,.28);
}
.nav-main a.active::after{
  content:"";
  position:absolute;
  left:16px;right:16px;bottom:3px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),var(--purple));
  box-shadow:0 0 12px rgba(47,216,255,.8);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(16,26,46,.7);
  color:var(--text);
  font-size:16px;
  align-items:center;
  justify-content:center;
}
.nav-toggle:hover{background:rgba(47,216,255,.14);}
.nav-backdrop{
  position:fixed;
  inset:0;
  background:rgba(3,6,12,.7);
  backdrop-filter:blur(3px);
  opacity:0;
  visibility:hidden;
  transition:opacity .28s ease,visibility .28s ease;
  z-index:58;
}
.nav-backdrop.is-open{opacity:1;visibility:visible;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 24px;
  border-radius:14px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px);}
.btn:active{transform:translateY(0);}
.btn-sm{padding:10px 17px;font-size:13.6px;border-radius:12px;}
.btn-primary{
  background:linear-gradient(120deg,var(--cyan),var(--purple));
  color:#04101d;
  box-shadow:0 16px 34px -18px rgba(47,216,255,.85);
  font-weight:700;
}
.btn-primary:hover{color:#04101d;box-shadow:0 20px 40px -16px rgba(47,216,255,.95);}
.btn-amber{
  background:linear-gradient(120deg,var(--amber),#ff8a2b);
  color:#21160a;
  font-weight:700;
  box-shadow:var(--glow-amber);
}
.btn-amber:hover{color:#21160a;box-shadow:0 20px 44px -16px rgba(255,176,32,.9);}
.btn-ghost{
  background:var(--glass);
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover{background:rgba(47,216,255,.14);color:var(--text);border-color:rgba(47,216,255,.5);}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:7px;
  color:var(--cyan);
  font-weight:600;
  font-size:14.5px;
}
.btn-link i{transition:transform .2s ease;}
.btn-link:hover i{transform:translateX(4px);}

/* ---------- 标签 / 徽章 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:999px;
  font-size:12.4px;
  font-weight:600;
  letter-spacing:.03em;
  border:1px solid var(--line-strong);
  background:rgba(47,216,255,.09);
  color:var(--cyan);
}
.badge.amber{background:rgba(255,176,32,.12);border-color:rgba(255,176,32,.4);color:var(--amber);}
.badge.purple{background:rgba(124,77,255,.14);border-color:rgba(124,77,255,.42);color:#B9A5FF;}
.badge.green{background:rgba(46,230,168,.12);border-color:rgba(46,230,168,.38);color:var(--success);}
.badge.dim{background:rgba(111,130,166,.14);border-color:rgba(111,130,166,.35);color:var(--muted);}

/* ---------- 通用板块 ---------- */
.section{padding:var(--space-block) 0;position:relative;}
.section.tight{padding:74px 0;}
.section.alt{background:linear-gradient(180deg,rgba(11,18,32,.9),rgba(6,10,18,.2));border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:760px;margin-bottom:48px;}
.sec-label{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:12.6px;
  font-weight:700;
  letter-spacing:.22em;
  color:var(--cyan);
  text-transform:uppercase;
  margin-bottom:16px;
}
.sec-label::before{
  content:"";
  width:26px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),transparent);
}
.sec-title{font-size:clamp(26px,3vw,38px);margin-bottom:16px;}
.sec-desc{color:var(--muted);font-size:16px;max-width:720px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-head.center .sec-label{justify-content:center;}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:9px;
  font-size:13.4px;
  color:var(--dim);
  margin-bottom:22px;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--cyan);}
.crumb .sep{opacity:.5;}
.crumb .current{color:var(--cyan);font-weight:600;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  padding:158px 0 84px;
  background:
    linear-gradient(100deg,rgba(6,10,18,.94) 12%,rgba(6,10,18,.72) 52%,rgba(12,22,40,.62) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-140px;top:-120px;
  width:520px;height:520px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(47,216,255,.22),transparent 66%);
  pointer-events:none;
}
.hero-inner{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);
  gap:48px;
  align-items:center;
  position:relative;
  z-index:2;
}
.hero-copy h1{
  font-size:clamp(31px,4.2vw,50px);
  font-weight:800;
  margin-bottom:20px;
  letter-spacing:-.015em;
}
.hero-copy h1 span{
  background:linear-gradient(100deg,var(--cyan),#9DB6FF 45%,var(--purple));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  font-size:16.8px;
  color:var(--muted);
  max-width:620px;
  margin-bottom:26px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;}
.hero-side{
  background:var(--glass);
  border:1px solid var(--line-strong);
  border-radius:var(--radius-lg);
  padding:26px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.hero-side h3{font-size:18px;margin-bottom:8px;}
.hero-side p.small{color:var(--dim);font-size:13.6px;margin-bottom:20px;}
.side-list{display:flex;flex-direction:column;gap:13px;margin-bottom:22px;}
.side-list li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  font-size:14.6px;
  color:var(--muted);
  padding-bottom:13px;
  border-bottom:1px dashed rgba(120,180,255,.14);
}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-list i{color:var(--cyan);margin-top:4px;font-size:14px;}

/* ---------- 时间线 ---------- */
.timeline{
  position:relative;
  padding-left:0;
  display:grid;
  gap:20px;
}
.tl-item{
  display:grid;
  grid-template-columns:110px 46px minmax(0,1fr);
  gap:0 18px;
  align-items:stretch;
}
.tl-stage{
  padding-top:22px;
  text-align:right;
}
.tl-stage .stage-no{
  display:block;
  font-size:12px;
  letter-spacing:.2em;
  color:var(--dim);
  font-weight:700;
}
.tl-stage .stage-name{font-size:14.6px;font-weight:700;color:var(--text);}
.tl-axis{
  position:relative;
  display:flex;
  justify-content:center;
}
.tl-axis::before{
  content:"";
  position:absolute;
  top:0;bottom:-20px;
  width:2px;
  background:linear-gradient(180deg,rgba(47,216,255,.55),rgba(124,77,255,.28),rgba(47,216,255,.06));
}
.tl-item:last-child .tl-axis::before{bottom:auto;height:34px;}
.tl-dot{
  position:relative;
  z-index:2;
  margin-top:20px;
  width:16px;height:16px;
  border-radius:50%;
  background:#0A1626;
  border:2px solid var(--cyan);
  box-shadow:0 0 0 5px rgba(47,216,255,.12),0 0 18px rgba(47,216,255,.6);
}
.tl-item.is-amber .tl-dot{border-color:var(--amber);box-shadow:0 0 0 5px rgba(255,176,32,.14),0 0 18px rgba(255,176,32,.55);}
.tl-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:22px 24px;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.tl-card:hover{transform:translateY(-3px);border-color:rgba(47,216,255,.4);box-shadow:0 22px 44px -30px rgba(47,216,255,.75);}
.tl-card h3{font-size:18px;margin-bottom:8px;}
.tl-card p{color:var(--muted);font-size:14.8px;margin-bottom:12px;}
.tl-meta{display:flex;flex-wrap:wrap;gap:9px;}

/* ---------- 公告列表 ---------- */
.notice-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:18px;
  margin-bottom:32px;
}
.notice-list{
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:rgba(11,18,32,.6);
}
.notice-item{
  display:grid;
  grid-template-columns:96px minmax(0,1fr) auto;
  gap:22px;
  align-items:center;
  padding:22px 26px;
  border-bottom:1px solid rgba(120,180,255,.1);
  transition:background .22s ease,padding-left .22s ease;
}
.notice-item:last-child{border-bottom:0;}
.notice-item:hover{background:rgba(47,216,255,.06);padding-left:30px;}
.notice-date{
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum";
  color:var(--cyan);
  font-weight:700;
  font-size:14px;
  letter-spacing:.02em;
}
.notice-body h3{font-size:16.4px;margin-bottom:6px;font-weight:700;}
.notice-body p{color:var(--muted);font-size:14.4px;}
.notice-tag{display:flex;flex-direction:column;align-items:flex-end;gap:8px;}

/* ---------- 帮助主题卡 ---------- */
.topic-card{
  height:100%;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.topic-card:hover{transform:translateY(-5px);border-color:rgba(47,216,255,.42);box-shadow:0 28px 54px -32px rgba(47,216,255,.8);}
.topic-figure{position:relative;aspect-ratio:16/10;overflow:hidden;}
.topic-figure img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.topic-card:hover .topic-figure img{transform:scale(1.05);}
.topic-figure::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,.12),rgba(6,10,18,.82));
}
.topic-body{padding:22px 22px 26px;display:flex;flex-direction:column;gap:10px;flex:1;}
.topic-body h3{font-size:17.4px;}
.topic-body p{color:var(--muted);font-size:14.4px;flex:1;}

/* ---------- 数据条 ---------- */
.metrics{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:linear-gradient(120deg,rgba(16,26,46,.9),rgba(11,18,32,.6));
  padding:30px 26px;
}
.metric{text-align:center;padding:6px 10px;border-right:1px dashed rgba(120,180,255,.16);}
.metric:last-child{border-right:0;}
.metric strong{
  display:block;
  font-size:clamp(24px,3vw,34px);
  font-weight:800;
  font-variant-numeric:tabular-nums;
  background:linear-gradient(100deg,var(--cyan),#A9C0FF);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  margin-bottom:6px;
}
.metric span{font-size:13.6px;color:var(--muted);}

/* ---------- 自助步骤 ---------- */
.steps{display:grid;gap:16px;}
.step{
  display:flex;
  gap:16px;
  align-items:flex-start;
  background:rgba(16,26,46,.66);
  border:1px solid var(--line);
  border-left:3px solid var(--cyan);
  border-radius:var(--radius-sm);
  padding:18px 22px;
  transition:background .22s ease,border-color .22s ease;
}
.step:hover{background:rgba(47,216,255,.08);border-left-color:var(--amber);}
.step-no{
  flex-shrink:0;
  width:32px;height:32px;
  border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(47,216,255,.14);
  color:var(--cyan);
  font-weight:800;
  font-size:14px;
  font-variant-numeric:tabular-nums;
}
.step h4{font-size:15.6px;margin-bottom:5px;}
.step p{color:var(--muted);font-size:14.2px;}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;gap:14px;}
.faq-item{
  background:var(--glass);
  border:1px solid var(--line);
  border-left:3px solid rgba(47,216,255,.5);
  border-radius:var(--radius-md);
  overflow:hidden;
  transition:border-color .22s ease,background .22s ease;
}
.faq-item.is-open{border-left-color:var(--cyan);background:rgba(16,26,46,.8);box-shadow:0 18px 40px -32px rgba(47,216,255,.9);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 24px;
  background:transparent;
  border:0;
  color:var(--text);
  font-size:16px;
  font-weight:600;
  text-align:left;
}
.faq-q:hover{color:var(--cyan);}
.faq-q .sign{
  flex-shrink:0;
  width:28px;height:28px;
  border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);
  color:var(--cyan);
  font-size:13px;
  transition:transform .26s ease,background .22s ease;
}
.faq-item.is-open .sign{transform:rotate(180deg);background:rgba(47,216,255,.14);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s ease;
}
.faq-a-inner{
  padding:0 24px 22px 24px;
  color:var(--muted);
  font-size:14.8px;
  max-width:900px;
}

/* ---------- 联系 / CTA ---------- */
.contact-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);
  gap:38px;
  align-items:start;
}
.contact-copy h2{font-size:clamp(25px,3vw,34px);margin-bottom:16px;}
.contact-copy p{color:var(--muted);margin-bottom:22px;}
.contact-points{display:grid;gap:14px;}
.contact-points li{display:flex;gap:12px;align-items:flex-start;color:var(--muted);font-size:14.8px;}
.contact-points i{color:var(--cyan);margin-top:5px;}
.form-card{
  background:var(--glass);
  border:1px solid var(--line-strong);
  border-radius:var(--radius-lg);
  padding:28px;
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:var(--shadow);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13.8px;font-weight:600;color:var(--muted);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;
  padding:13px 15px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);
  background:rgba(8,14,26,.85);
  color:var(--text);
  font-size:14.6px;
  font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{min-height:112px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--dim);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:rgba(47,216,255,.7);
  box-shadow:0 0 0 4px rgba(47,216,255,.14);
  background:rgba(10,18,32,.95);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 50%,calc(100% - 14px) 50%;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.check-line{display:flex;gap:10px;align-items:flex-start;font-size:13.6px;color:var(--muted);margin:4px 0 20px;}
.check-line input{width:17px;height:17px;margin-top:3px;accent-color:#2FD8FF;flex-shrink:0;}
.form-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;}
.form-tip{font-size:13.4px;color:var(--dim);}
.form-msg{
  display:none;
  margin-top:16px;
  padding:12px 16px;
  border-radius:var(--radius-sm);
  font-size:14px;
  border:1px solid transparent;
}
.form-msg.ok{display:block;background:rgba(46,230,168,.1);border-color:rgba(46,230,168,.4);color:var(--success);}
.form-msg.err{display:block;background:rgba(255,92,122,.1);border-color:rgba(255,92,122,.42);color:var(--danger);}

/* ---------- 快捷入口 ---------- */
.link-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.link-card{
  display:flex;
  align-items:center;
  gap:16px;
  padding:22px 24px;
  border-radius:var(--radius-md);
  background:rgba(16,26,46,.7);
  border:1px solid var(--line);
  transition:transform .22s ease,border-color .22s ease,background .22s ease;
}
.link-card:hover{transform:translateY(-4px);border-color:rgba(47,216,255,.42);background:rgba(16,26,46,.95);}
.link-card i{
  width:44px;height:44px;flex-shrink:0;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:13px;
  background:linear-gradient(140deg,rgba(47,216,255,.22),rgba(124,77,255,.24));
  color:var(--cyan);
  font-size:17px;
}
.link-card h3{font-size:16px;margin-bottom:4px;}
.link-card p{font-size:13.8px;color:var(--muted);}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,18,32,.92),rgba(6,10,18,1));
  padding:66px 0 30px;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:38px;
  padding-bottom:38px;
  border-bottom:1px solid rgba(120,180,255,.12);
}
.footer-brand p{color:var(--muted);font-size:14.2px;margin-top:16px;max-width:340px;}
.footer-title{font-size:13.6px;font-weight:700;letter-spacing:.14em;color:var(--text);margin-bottom:16px;}
.footer-links{display:grid;gap:11px;}
.footer-links a{color:var(--muted);font-size:14.2px;}
.footer-links a:hover{color:var(--cyan);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  padding-top:24px;
  color:var(--dim);
  font-size:13.2px;
}
.to-top{
  position:fixed;
  right:22px;bottom:26px;
  width:46px;height:46px;
  border-radius:14px;
  border:1px solid var(--line-strong);
  background:rgba(16,26,46,.9);
  color:var(--cyan);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  z-index:55;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,background .22s ease;
  backdrop-filter:blur(8px);
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:rgba(47,216,255,.2);}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  :root{--space-block:76px;}
  .nav-main{
    position:fixed;
    top:0;right:0;
    height:100vh;
    width:min(340px,86vw);
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:92px 22px 32px;
    margin:0;
    background:rgba(8,14,26,.97);
    border-left:1px solid var(--line-strong);
    backdrop-filter:blur(18px);
    transform:translateX(102%);
    transition:transform .3s ease;
    z-index:59;
    overflow-y:auto;
  }
  .nav-main.is-open{transform:translateX(0);}
  .nav-main a{padding:13px 16px;border-radius:12px;font-size:15.4px;}
  .nav-main a.active::after{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero-inner{grid-template-columns:1fr;gap:34px;}
  .page-hero{padding:132px 0 66px;}
  .contact-grid{grid-template-columns:1fr;gap:28px;}
  .link-grid{grid-template-columns:1fr 1fr;}
  .metrics{grid-template-columns:1fr 1fr;gap:22px;}
  .metric:nth-child(2){border-right:0;}
  .metric:nth-child(1),.metric:nth-child(2){padding-bottom:16px;border-bottom:1px dashed rgba(120,180,255,.16);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:767px){
  :root{--space-block:58px;}
  .container{padding:0 18px;}
  .section{padding:var(--space-block) 0;}
  .sec-head{margin-bottom:32px;}
  .nav-actions .btn-ghost{display:none;}
  .tl-item{grid-template-columns:minmax(0,1fr);gap:0;}
  .tl-stage{text-align:left;padding-top:0;padding-bottom:10px;display:flex;align-items:center;gap:10px;}
  .tl-axis{display:none;}
  .tl-card{padding:20px;}
  .notice-item{grid-template-columns:1fr;gap:12px;padding:20px;}
  .notice-item:hover{padding-left:20px;}
  .notice-tag{flex-direction:row;align-items:center;flex-wrap:wrap;}
  .link-grid{grid-template-columns:1fr;}
  .metrics{grid-template-columns:1fr;gap:18px;padding:24px 20px;}
  .metric{border-right:0;border-bottom:1px dashed rgba(120,180,255,.16);padding-bottom:16px;}
  .metric:last-child{border-bottom:0;padding-bottom:0;}
  .field-row{grid-template-columns:1fr;}
  .form-card{padding:22px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;}
  .hero-copy h1{font-size:clamp(27px,7.4vw,34px);}
  .btn{width:100%;}
  .hero-cta{gap:12px;}
  .hero-cta .btn{width:100%;}
  .form-actions .btn{width:100%;}
}
@media (max-width:520px){
  .brand-main{font-size:15px;}
  .brand-sub{font-size:10px;letter-spacing:.18em;}
  .hero-tags .badge{font-size:11.8px;}
  .to-top{right:14px;bottom:16px;}
}
@media (min-width:1440px){
  .container{max-width:1320px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --bg:#060A12;
  --panel:#0B1220;
  --card:#101A2E;
  --card-2:#0D1728;
  --cyan:#2FD8FF;
  --purple:#7C4DFF;
  --amber:#FFB020;
  --ok:#2EE6A8;
  --danger:#FF5C7A;
  --text:#EAF2FF;
  --text-2:#A8B8D8;
  --text-3:#6F82A6;
  --line:rgba(120,180,255,.16);
  --line-strong:rgba(120,180,255,.30);
  --glass:rgba(12,22,40,.55);
  --r-card:20px;
  --r-btn:12px;
  --shadow:0 18px 48px rgba(3,8,18,.55);
  --shadow-soft:0 10px 28px rgba(3,8,18,.40);
  --glow-cyan:0 0 0 1px rgba(47,216,255,.20), 0 14px 40px rgba(47,216,255,.10);
  --glow-amber:0 0 0 1px rgba(255,176,32,.28), 0 14px 40px rgba(255,176,32,.14);
  --container:1240px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(900px 520px at 12% -8%, rgba(47,216,255,.10), transparent 62%),
    radial-gradient(760px 460px at 92% 4%, rgba(124,77,255,.12), transparent 60%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden}
img{max-width:100%;height:auto;display:block;border-style:none}
a{color:inherit;text-decoration:none;background-color:transparent;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--cyan)}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.32;color:var(--text);letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
table{border-collapse:collapse;width:100%}
input,select,textarea{font-family:inherit;font-size:15px}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.grid-x.grid-gutter{margin-left:-14px;margin-right:-14px}
.grid-x.grid-gutter>.cell{padding-left:14px;padding-right:14px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  backdrop-filter:blur(16px);
  background:rgba(8,14,26,.62);
  border-bottom:1px solid rgba(120,180,255,.10);
  transition:background .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,216,255,.55),rgba(124,77,255,.45),transparent);
  opacity:0;transition:opacity .3s ease;
}
.site-header.scrolled{background:rgba(5,9,18,.86);box-shadow:0 12px 34px rgba(2,6,14,.55)}
.site-header.scrolled::after{opacity:1}
.nav-wrap{display:flex;align-items:center;gap:26px;min-height:76px;transition:min-height .28s ease}
.site-header.scrolled .nav-wrap{min-height:62px}

.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;color:#04121C;
  background:linear-gradient(140deg,var(--cyan),#5BE7FF 42%,var(--purple));
  box-shadow:0 10px 26px rgba(47,216,255,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.14}
.brand-main{font-size:16px;font-weight:800;letter-spacing:.4px}
.brand-sub{font-size:12px;color:var(--text-3);letter-spacing:3px}

.nav-main{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-main>a{
  position:relative;padding:9px 14px;border-radius:999px;
  font-size:15px;color:var(--text-2);white-space:nowrap;
  transition:color .2s ease,background .2s ease,transform .2s ease;
}
.nav-main>a:hover{color:var(--text);background:rgba(120,180,255,.10);transform:translateY(-1px)}
.nav-main>a.active{color:#061520;background:linear-gradient(135deg,var(--cyan),#6fe4ff);box-shadow:0 8px 22px rgba(47,216,255,.26);font-weight:700}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.drawer-cta{display:none}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;text-align:center;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease,opacity .2s ease;
}
.btn i{font-size:14px}
.btn-primary{
  color:#03131C;
  background:linear-gradient(135deg,var(--cyan) 0%,#66E5FF 48%,#9C7BFF 130%);
  box-shadow:0 12px 30px rgba(47,216,255,.26);
}
.btn-primary:hover{color:#03131C;transform:translateY(-2px);box-shadow:0 16px 38px rgba(47,216,255,.34)}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 20px rgba(47,216,255,.24)}
.btn-ghost{
  color:var(--text);background:rgba(12,22,40,.55);
  border-color:var(--line-strong);
}
.btn-ghost:hover{color:var(--text);background:rgba(120,180,255,.14);border-color:rgba(120,180,255,.42);transform:translateY(-2px)}
.btn-amber{
  color:#1B1200;background:linear-gradient(135deg,#FFD063,var(--amber));
  box-shadow:var(--glow-amber);
}
.btn-amber:hover{color:#1B1200;transform:translateY(-2px);box-shadow:0 18px 42px rgba(255,176,32,.28)}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px}
.btn-lg{padding:15px 30px;font-size:16px;border-radius:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;filter:saturate(.5);pointer-events:none}

.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line-strong);background:rgba(12,22,40,.6);
  color:var(--text);font-size:17px;cursor:pointer;
}
.nav-toggle:hover{background:rgba(120,180,255,.14)}
.nav-scrim{
  position:fixed;inset:0;z-index:70;background:rgba(3,7,15,.72);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}

/* ---------- breadcrumbs ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--cyan)}
.crumbs i{font-size:10px;opacity:.6}
.crumbs span[aria-current]{color:var(--cyan)}

/* ---------- hero ---------- */
.page-hero{position:relative;padding:64px 0 78px;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.page-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(4,8,16,.94) 0%,rgba(6,12,24,.86) 48%,rgba(10,18,36,.72) 100%);
}
.page-hero .container{position:relative;z-index:2}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  color:var(--cyan);background:rgba(47,216,255,.10);
  border:1px solid rgba(47,216,255,.28);letter-spacing:.6px;
}
.eyebrow.amber{color:var(--amber);background:rgba(255,176,32,.10);border-color:rgba(255,176,32,.30)}
.eyebrow.purple{color:#B7A0FF;background:rgba(124,77,255,.12);border-color:rgba(124,77,255,.32)}

h1.hero-title{
  font-size:clamp(30px,4.2vw,52px);
  font-weight:800;margin:20px 0 16px;letter-spacing:.4px;
}
h1.hero-title em{font-style:normal;background:linear-gradient(120deg,var(--cyan),#9C7BFF);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:17px;color:var(--text-2);max-width:620px;line-height:1.85}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;font-size:14px;color:var(--text-2)}
.hero-points li{display:inline-flex;align-items:center;gap:8px}
.hero-points i{color:var(--ok);font-size:13px}

.glass-card{
  position:relative;
  background:linear-gradient(160deg,rgba(16,26,46,.88),rgba(9,16,30,.86));
  border:1px solid var(--line-strong);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px);
}
.glass-card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(140deg,rgba(47,216,255,.14),transparent 46%,rgba(124,77,255,.12));
  opacity:.75;
}
.glass-card>*{position:relative;z-index:1}
.glass-title{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:17px;font-weight:700}
.glass-title .pill{font-size:12px;font-weight:600;color:var(--amber);background:rgba(255,176,32,.12);border:1px solid rgba(255,176,32,.3);padding:4px 10px;border-radius:999px}
.mini-rows{margin-top:18px;display:grid;gap:12px}
.mini-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:11px 14px;border-radius:12px;background:rgba(120,180,255,.06);border:1px solid rgba(120,180,255,.12);font-size:14px;color:var(--text-2)}
.mini-row b{color:var(--text);font-variant-numeric:tabular-nums;font-weight:700}
.glass-note{margin-top:16px;font-size:13px;color:var(--text-3);line-height:1.7}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section.tight{padding:64px 0}
.section.panel-band{
  background:linear-gradient(180deg,rgba(11,18,32,.72),rgba(6,10,18,.4));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-title{font-size:clamp(24px,3vw,36px);font-weight:800;margin-bottom:14px}
.sec-desc{color:var(--text-2);font-size:15.5px;line-height:1.85}

/* ---------- comparison table ---------- */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  background:linear-gradient(180deg,rgba(16,26,46,.72),rgba(9,16,30,.66));
  box-shadow:var(--shadow-soft);
}
.table-scroll{overflow-x:auto}
.plan-table{min-width:880px;font-size:14.5px}
.plan-table th,.plan-table td{padding:16px 18px;text-align:left;border-bottom:1px solid rgba(120,180,255,.10);vertical-align:middle}
.plan-table thead th{
  font-size:14px;color:var(--text-2);font-weight:600;background:rgba(8,14,26,.7);
  position:relative;
}
.plan-table thead th.col-rec{color:#04121C;background:linear-gradient(135deg,var(--cyan),#8FE9FF);font-weight:800}
.plan-table tbody tr:hover{background:rgba(120,180,255,.05)}
.plan-table td:first-child{color:var(--text-2);width:180px}
.plan-table td.col-rec{background:rgba(47,216,255,.06);color:var(--text)}
.plan-table .price{font-size:20px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--text)}
.plan-table .price span{font-size:12px;font-weight:500;color:var(--text-3);margin-left:2px}
.plan-table tbody tr:last-child td{border-bottom:none}
.tick{color:var(--ok);font-size:13px;margin-right:6px}
.dash{color:var(--text-3)}
.table-foot{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;padding:18px 20px;border-top:1px solid var(--line);background:rgba(8,14,26,.55)}
.table-foot p{font-size:13.5px;color:var(--text-3);max-width:640px}

/* ---------- ladder ---------- */
.ladder{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:52px}
.ladder::before{
  content:"";position:absolute;left:6%;right:6%;top:34px;height:2px;
  background:linear-gradient(90deg,rgba(47,216,255,.5),rgba(124,77,255,.5),rgba(255,176,32,.55));
  opacity:.55;
}
.ladder-item{position:relative;padding-top:0}
.ladder-node{
  width:68px;height:68px;border-radius:20px;display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:800;font-variant-numeric:tabular-nums;color:#04121C;
  background:linear-gradient(140deg,var(--cyan),#79E6FF);
  box-shadow:0 14px 34px rgba(47,216,255,.28);
  margin-bottom:22px;position:relative;z-index:2;
}
.ladder-item:nth-child(2) .ladder-node{background:linear-gradient(140deg,#9C7BFF,#C3B0FF);box-shadow:0 14px 34px rgba(124,77,255,.28)}
.ladder-item:nth-child(3) .ladder-node{background:linear-gradient(140deg,#6FE7C6,var(--ok));box-shadow:0 14px 34px rgba(46,230,168,.24)}
.ladder-item:nth-child(4) .ladder-node{background:linear-gradient(140deg,#FFD063,var(--amber));box-shadow:0 14px 34px rgba(255,176,32,.28)}
.ladder-card{
  height:100%;padding:22px;border-radius:18px;
  background:linear-gradient(170deg,rgba(16,26,46,.86),rgba(9,16,30,.78));
  border:1px solid var(--line);box-shadow:var(--shadow-soft);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.ladder-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow-cyan)}
.ladder-card h3{font-size:18px;margin-bottom:8px}
.ladder-tier{font-size:12.5px;color:var(--cyan);letter-spacing:.6px;font-weight:600;margin-bottom:10px;display:block}
.ladder-card ul{display:grid;gap:9px;margin:14px 0 16px}
.ladder-card li{position:relative;padding-left:16px;font-size:14px;color:var(--text-2)}
.ladder-card li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--cyan);opacity:.8}
.ladder-cond{font-size:13px;color:var(--text-3);border-top:1px dashed rgba(120,180,255,.18);padding-top:12px}

/* ---------- price cards ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.price-card{
  position:relative;display:flex;flex-direction:column;gap:16px;
  padding:28px 26px;border-radius:var(--r-card);
  background:linear-gradient(180deg,rgba(16,26,46,.82),rgba(9,16,30,.76));
  border:1px solid var(--line);box-shadow:var(--shadow-soft);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.price-card:hover{transform:translateY(-5px);border-color:var(--line-strong)}
.price-card.recommended{border-color:rgba(255,176,32,.45);box-shadow:var(--glow-amber)}
.price-card.recommended::before{
  content:"";position:absolute;inset:-1px;border-radius:inherit;pointer-events:none;
  background:linear-gradient(140deg,rgba(255,176,32,.16),transparent 55%);
}
.price-card>*{position:relative;z-index:1}
.price-tag{
  position:absolute;top:-13px;right:20px;z-index:3;
  font-size:12.5px;font-weight:700;color:#1B1200;
  background:linear-gradient(135deg,#FFD063,var(--amber));
  padding:5px 14px;border-radius:999px;box-shadow:0 10px 24px rgba(255,176,32,.28);
}
.price-name{font-size:19px;font-weight:700}
.price-period{font-size:13px;color:var(--text-3)}
.price-amount{
  font-size:38px;font-weight:800;font-variant-numeric:tabular-nums;line-height:1.1;
  color:var(--text);display:flex;align-items:baseline;gap:6px;
}
.price-amount small{font-size:14px;font-weight:500;color:var(--text-3)}
.price-list{display:grid;gap:10px;border-top:1px solid var(--line);padding-top:18px;margin-top:4px}
.price-list li{display:flex;gap:9px;font-size:14px;color:var(--text-2)}
.price-list i{color:var(--cyan);font-size:12px;margin-top:9px}
.price-card .btn{margin-top:auto}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step{
  position:relative;padding:24px 22px;border-radius:18px;
  background:rgba(16,26,46,.62);border:1px solid var(--line);
  transition:transform .22s ease,border-color .22s ease;
}
.step:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:12px;font-size:15px;font-weight:800;
  color:#04121C;background:linear-gradient(140deg,var(--cyan),#8FE9FF);
  margin-bottom:14px;font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--text-2)}

/* ---------- info split ---------- */
.info-split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.info-copy h2{font-size:clamp(23px,2.6vw,32px);margin-bottom:16px}
.info-copy p{color:var(--text-2);font-size:15.5px}
.info-list{display:grid;gap:14px;margin-top:24px}
.info-list li{
  display:flex;gap:14px;padding:16px 18px;border-radius:14px;
  background:rgba(120,180,255,.05);border:1px solid rgba(120,180,255,.12);
}
.info-list i{color:var(--cyan);font-size:16px;margin-top:5px}
.info-list b{display:block;font-size:15px;margin-bottom:4px}
.info-list span{font-size:14px;color:var(--text-2)}
.info-figure{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);position:relative;
}
.info-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s ease}
.info-figure:hover img{transform:scale(1.03)}
.info-badge{
  position:absolute;left:18px;bottom:18px;
  padding:10px 16px;border-radius:12px;font-size:13.5px;font-weight:600;
  background:rgba(6,10,20,.78);border:1px solid var(--line-strong);color:var(--text);
  backdrop-filter:blur(8px);
}

/* ---------- consult ---------- */
.consult-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
.consult-aside h2{font-size:clamp(23px,2.6vw,32px);margin-bottom:14px}
.consult-aside p{color:var(--text-2);font-size:15.5px}
.consult-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:26px}
.stat{padding:18px;border-radius:16px;background:rgba(120,180,255,.05);border:1px solid rgba(120,180,255,.12)}
.stat b{display:block;font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--cyan);line-height:1.2}
.stat span{font-size:13.5px;color:var(--text-3)}

.form-card{
  padding:28px;border-radius:var(--r-card);
  background:linear-gradient(170deg,rgba(16,26,46,.9),rgba(9,16,30,.84));
  border:1px solid var(--line-strong);box-shadow:var(--shadow);
  backdrop-filter:blur(12px);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.field label{font-size:14px;color:var(--text-2);font-weight:600}
.field label .req{color:var(--danger);margin-left:2px}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:12px;
  background:rgba(6,10,20,.7);border:1px solid rgba(120,180,255,.18);
  color:var(--text);transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{min-height:110px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:rgba(47,216,255,.65);
  box-shadow:0 0 0 3px rgba(47,216,255,.16);background:rgba(8,14,26,.9);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:rgba(255,92,122,.7);box-shadow:0 0 0 3px rgba(255,92,122,.14)}
.field-error{font-size:12.5px;color:var(--danger);display:none}
.field.has-error .field-error{display:block}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--text-2);margin:6px 0 18px}
.check-row input{width:17px;height:17px;margin-top:5px;accent-color:var(--cyan);flex:0 0 17px}
.form-msg{display:none;margin-top:14px;padding:12px 16px;border-radius:12px;font-size:14px}
.form-msg.ok{display:block;color:var(--ok);background:rgba(46,230,168,.10);border:1px solid rgba(46,230,168,.32)}
.form-msg.err{display:block;color:var(--danger);background:rgba(255,92,122,.10);border:1px solid rgba(255,92,122,.32)}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:980px}
.faq-item{
  border-radius:16px;border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(16,26,46,.78),rgba(9,16,30,.7));
  overflow:hidden;position:relative;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--cyan),var(--purple));opacity:.5;transition:opacity .22s ease;
}
.faq-item.open{border-color:var(--line-strong);box-shadow:var(--glow-cyan)}
.faq-item.open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:transparent;border:0;cursor:pointer;
  color:var(--text);font-size:16px;font-weight:600;text-align:left;
}
.faq-q i{color:var(--cyan);font-size:14px;transition:transform .26s ease;flex:0 0 auto}
.faq-item.open .faq-q i{transform:rotate(135deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a-inner p{padding:0 22px 20px;color:var(--text-2);font-size:14.5px;line-height:1.85;max-width:840px}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:26px;
  padding:52px 44px;border:1px solid var(--line-strong);
  background-image:linear-gradient(120deg,rgba(6,12,24,.92),rgba(12,20,40,.86)),url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
  box-shadow:var(--shadow);
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,77,255,.30),transparent 66%);
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between}
.cta-inner h2{font-size:clamp(22px,2.6vw,32px);margin-bottom:10px}
.cta-inner p{color:var(--text-2);font-size:15px;max-width:600px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- footer ---------- */
.site-footer{
  margin-top:0;padding:64px 0 26px;
  background:linear-gradient(180deg,rgba(6,10,18,.6),rgba(4,7,14,.96));
  border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.footer-brand p{margin-top:18px;font-size:14px;color:var(--text-2);max-width:360px;line-height:1.85}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.5px}
.footer-links{display:grid;gap:11px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--cyan)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(120,180,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.site-footer .brand-main{font-size:15px}
.site-footer .brand-mark{width:38px;height:38px;flex:0 0 38px;border-radius:12px;font-size:15px}

/* ---------- back to top ---------- */
.back-top{
  position:fixed;right:20px;bottom:26px;z-index:60;
  width:46px;height:46px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(12,22,40,.85);border:1px solid var(--line-strong);color:var(--text);
  box-shadow:var(--shadow-soft);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease,transform .22s ease,background .22s ease;
}
.back-top.show{opacity:1;visibility:visible}
.back-top:hover{transform:translateY(-3px);background:rgba(47,216,255,.16);color:var(--text)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  :root{--container:1100px}
}
@media (max-width:1023px){
  .nav-main{
    position:fixed;top:0;right:0;z-index:85;
    height:100%;width:min(86vw,340px);
    display:flex;flex-direction:column;align-items:stretch;gap:6px;
    padding:92px 22px 30px;margin-left:0;
    background:linear-gradient(180deg,#0B1220,#060A12);
    border-left:1px solid var(--line);
    transform:translateX(103%);transition:transform .3s ease;
    overflow-y:auto;
  }
  body.nav-open .nav-main{transform:none}
  .nav-main>a{padding:13px 16px;border-radius:12px;font-size:16px}
  .nav-main>a.active{border-radius:12px}
  .drawer-cta{display:flex;flex-direction:column;gap:12px;margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}
  .nav-actions .btn-ghost{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  body.nav-open .nav-scrim{opacity:1;visibility:visible}

  .page-hero{padding:48px 0 60px}
  .section{padding:64px 0}
  .section.tight{padding:52px 0}
  .ladder{grid-template-columns:repeat(2,1fr);gap:24px}
  .ladder::before{display:none}
  .price-grid{grid-template-columns:1fr;gap:20px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .info-split{grid-template-columns:1fr;gap:32px}
  .consult-grid{grid-template-columns:1fr;gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .nav-wrap{min-height:64px;gap:12px}
  .site-header.scrolled .nav-wrap{min-height:58px}
  .brand-mark{width:38px;height:38px;flex:0 0 38px;font-size:15px;border-radius:12px}
  .brand-main{font-size:15px}
  .brand-sub{font-size:11px;letter-spacing:2px}
  .nav-actions .btn-sm{padding:8px 12px;font-size:13px}

  .page-hero{padding:38px 0 52px}
  h1.hero-title{font-size:clamp(26px,7.4vw,34px);margin:16px 0 12px}
  .hero-lead{font-size:15.5px}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .hero-points{flex-direction:column;gap:8px;font-size:13.5px}
  .glass-card{padding:20px;margin-top:26px}

  .section{padding:52px 0}
  .section.tight{padding:44px 0}
  .sec-head{margin-bottom:30px}
  .sec-title{font-size:clamp(22px,6.4vw,27px)}

  .ladder{grid-template-columns:1fr;gap:20px}
  .ladder-node{width:56px;height:56px;border-radius:16px;font-size:16px;margin-bottom:16px}
  .steps{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:22px}
  .consult-stats{grid-template-columns:1fr 1fr}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a-inner p{padding:0 18px 18px;font-size:14px}
  .cta-band{padding:34px 22px;border-radius:20px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:6px}
  .back-top{right:14px;bottom:16px;width:42px;height:42px}
  .table-foot{flex-direction:column;align-items:flex-start}
}
@media (max-width:400px){
  .price-amount{font-size:32px}
  .stat b{font-size:22px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}