/* roulang page: index */
:root{
  --bg:#070C16;
  --panel:#0E1626;
  --panel-2:#111C2E;
  --light:#F5F8FC;
  --primary:#2BE3C8;
  --primary-hover:#57F0DA;
  --primary-press:#1FBFA9;
  --violet:#7A5CFF;
  --amber:#FFB547;
  --text:#E9F1FA;
  --text-2:#9FB3C8;
  --text-3:#6B819B;
  --ink:#0F1B2B;
  --ink-2:#4A5C70;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --line-light:#E1E8F0;
  --r-card:18px;
  --r-img:18px;
  --r-input:12px;
  --r-pill:999px;
  --sh-deep:0 12px 32px rgba(0,0,0,.5);
  --sh-light:0 10px 30px rgba(16,32,56,.08);
  --glow:0 8px 24px rgba(43,227,200,.28);
  --glow-strong:0 14px 36px rgba(43,227,200,.4);
  --container:1200px;
  --gap:96px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .18s ease-out,background-color .18s ease-out,border-color .18s ease-out}
button,input,textarea,select{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
@media(min-width:1440px){.container{max-width:1280px}}
.section{padding:var(--gap) 0;position:relative}
.section-light{background:var(--light);color:var(--ink)}
.section-light h2,.section-light h3{color:var(--ink)}
.section-light p{color:var(--ink-2)}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{font-size:clamp(26px,3.1vw,32px)}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px}
.section-light .section-head p{color:var(--ink-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;font-weight:700;
  color:var(--primary);text-transform:uppercase;margin-bottom:18px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);display:inline-block}

/* ============ 按钮体系 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);font-weight:700;font-size:15px;line-height:1;
  padding:15px 28px;white-space:nowrap;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--violet));color:#04231F;box-shadow:var(--glow)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--glow-strong);color:#04231F}
.btn-primary:active{transform:translateY(0);box-shadow:var(--glow)}
.btn-ghost{background:rgba(255,255,255,.05);border:1px solid var(--line-strong);color:var(--text);backdrop-filter:blur(10px)}
.btn-ghost:hover{border-color:rgba(43,227,200,.55);color:var(--primary-hover)}
.btn-ghost:active{background:rgba(255,255,255,.08)}
.btn-sm{padding:10px 20px;font-size:14px}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:700;font-size:14px}
.text-link i{transition:transform .18s ease-out}
.text-link:hover{color:var(--primary-hover)}
.text-link:hover i{transform:translateX(4px)}
.section-light .text-link{color:#0F9E8C}
.section-light .text-link:hover{color:#0B7E70}

/* ============ 徽章 / 标签 ============ */
.tag{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;letter-spacing:.02em;
  background:rgba(43,227,200,.12);color:var(--primary);border:1px solid rgba(43,227,200,.28);
}
.tag-violet{background:rgba(122,92,255,.14);color:#B7A6FF;border-color:rgba(122,92,255,.34)}
.tag-amber{background:rgba(255,181,71,.12);color:var(--amber);border-color:rgba(255,181,71,.3)}
.section-light .tag{background:rgba(15,158,140,.1);color:#0B7E70;border-color:rgba(15,158,140,.22)}
.status-pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 13px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;letter-spacing:.02em;
  background:rgba(43,227,200,.1);color:var(--primary);border:1px solid rgba(43,227,200,.26);
}
.status-pill i{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(43,227,200,.18);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.countdown-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-pill);font-size:12px;font-weight:700;letter-spacing:.02em;
  background:rgba(255,181,71,.1);color:var(--amber);border:1px solid rgba(255,181,71,.3);
}

/* ============ 卡片 ============ */
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-deep);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
  height:100%;
}
.card:hover{transform:translateY(-4px);border-color:rgba(43,227,200,.3)}
.glass{
  background:rgba(255,255,255,.05);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.12);border-radius:var(--r-card);
}
.card-num{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:.12em;
  color:var(--primary);background:rgba(43,227,200,.1);border:1px solid rgba(43,227,200,.24);
  padding:3px 10px;border-radius:8px;margin-bottom:16px;
}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--text-2);font-size:15px}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  padding:14px 0;border-bottom:1px solid transparent;
  transition:padding .22s ease-out,background-color .22s ease-out,border-color .22s ease-out,backdrop-filter .22s ease-out;
}
.site-header.is-scrolled{
  padding:8px 0;background:rgba(7,12,22,.76);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:11px;font-weight:800;font-size:18px;letter-spacing:-.01em;color:var(--text);flex-shrink:0}
.brand:hover{color:var(--text)}
.brand-mark{
  width:34px;height:34px;border-radius:11px;flex-shrink:0;
  background:linear-gradient(135deg,var(--primary),var(--violet));
  display:grid;place-items:center;box-shadow:var(--glow);
}
.brand-mark svg{width:19px;height:19px;display:block}
.brand-text small{display:block;font-size:10px;font-weight:600;letter-spacing:.18em;color:var(--text-3);line-height:1.1}
.main-nav ul{display:flex;align-items:center;gap:4px}
.main-nav a{display:block;padding:10px 14px;border-radius:var(--r-pill);font-size:15px;color:var(--text-2)}
.main-nav a:hover{color:var(--text);background:rgba(255,255,255,.06)}
.main-nav a.is-active{color:var(--primary);background:rgba(43,227,200,.1)}
.header-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);position:relative;background:rgba(255,255,255,.04);
}
.nav-toggle span{position:absolute;left:12px;right:12px;height:2px;border-radius:2px;background:var(--text);transition:transform .2s ease-out,opacity .2s ease-out}
.nav-toggle span:nth-child(1){top:14px}
.nav-toggle span:nth-child(2){top:20px}
.nav-toggle span:nth-child(3){top:26px}
.nav-toggle.is-active span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-active span:nth-child(2){opacity:0}
.nav-toggle.is-active span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

@media(max-width:1023px){
  .nav-toggle{display:block}
  .header-actions .status-pill,.header-actions .countdown-pill{display:none}
  .main-nav{
    position:fixed;inset:0;z-index:70;
    background:rgba(7,12,22,.97);
    backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    display:flex;align-items:center;justify-content:center;
    padding:96px 28px 48px;
    transform:translateY(-8px);opacity:0;visibility:hidden;
    transition:opacity .22s ease-out,transform .22s ease-out,visibility .22s;
  }
  .main-nav.is-open{opacity:1;visibility:visible;transform:none}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:8px;width:100%;max-width:420px}
  .main-nav a{font-size:19px;font-weight:700;padding:16px 20px;border:1px solid var(--line);border-radius:14px}
}
@media(max-width:639px){
  .brand{font-size:16px}
  .header-actions .btn{display:none}
}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:168px 0 104px;
  background-color:var(--bg);
  background-image:linear-gradient(180deg,rgba(7,12,22,.7) 0%,rgba(7,12,22,.86) 58%,rgba(7,12,22,.96) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(620px 420px at 16% 24%,rgba(43,227,200,.2),transparent 68%),
             radial-gradient(520px 380px at 88% 8%,rgba(122,92,255,.16),transparent 70%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:72px 72px;
  -webkit-mask-image:radial-gradient(760px 520px at 30% 30%,#000,transparent 75%);
  mask-image:radial-gradient(760px 520px at 30% 30%,#000,transparent 75%);
}
.hero .container{position:relative;z-index:2}
.hero h1{
  font-size:clamp(30px,4.4vw,54px);
  line-height:1.18;letter-spacing:-.02em;margin-bottom:20px;
}
.hero h1 em{font-style:normal;background:linear-gradient(120deg,var(--primary),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:17px;color:var(--text-2);max-width:540px;line-height:1.8}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-trust{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px 24px;
  margin-top:38px;padding-top:26px;border-top:1px solid var(--line);
}
.hero-stat{font-size:13px;color:var(--text-3)}
.hero-stat b{display:block;font-size:24px;font-weight:800;color:var(--text);letter-spacing:-.01em;font-variant-numeric:tabular-nums}
.hero-panel{position:relative;padding-left:24px}
.hero-img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--line-strong);
  box-shadow:var(--sh-deep);
}
.hero-float{
  position:absolute;border-radius:14px;padding:14px 18px;
  background:rgba(14,22,38,.72);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.14);box-shadow:var(--sh-deep);
}
.hero-float.f1{left:-6px;top:34px}
.hero-float.f2{right:-6px;bottom:34px}
.hero-float span{display:block;font-size:12px;color:var(--text-3);letter-spacing:.04em}
.hero-float b{font-size:19px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums}
@media(max-width:1023px){
  .hero{padding:132px 0 72px}
  .hero-panel{padding-left:0;margin-top:44px}
  .hero-float.f1{top:16px;left:8px}
  .hero-float.f2{bottom:16px;right:8px}
}
@media(max-width:639px){
  .hero{padding:116px 0 56px}
  .hero-actions .btn{width:100%}
  .hero-float.f1{display:none}
}

/* ============ 卖点非对称区 ============ */
.point-lg{
  background:linear-gradient(160deg,rgba(43,227,200,.09),rgba(122,92,255,.07) 60%,transparent);
  border:1px solid rgba(43,227,200,.2);border-radius:var(--r-card);
  padding:32px;height:100%;display:flex;flex-direction:column;
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.point-lg:hover{transform:translateY(-4px);border-color:rgba(43,227,200,.4)}
.point-lg h3{font-size:23px;margin-bottom:12px}
.point-lg p{color:var(--text-2);font-size:15px;max-width:460px}
.point-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.point-metric{display:flex;gap:34px;margin-top:auto;padding-top:26px;border-top:1px solid var(--line)}
.point-metric b{display:block;font-size:26px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.2}
.point-metric span{font-size:13px;color:var(--text-3)}
.point-stack{display:flex;flex-direction:column;gap:20px;height:100%}
.point-sm{padding:24px}
.point-sm h3{font-size:18px}
@media(max-width:1023px){.point-stack{margin-top:20px}}

/* ============ 场景演示 ============ */
.scene-row{display:flex;align-items:center;gap:56px}
.scene-row+.scene-row{margin-top:88px}
.scene-media{flex:0 0 50%;max-width:50%}
.scene-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--line-strong);box-shadow:var(--sh-deep);
}
.scene-body{flex:1}
.scene-body h2{font-size:clamp(24px,2.8vw,30px);margin-bottom:16px}
.scene-body p{color:var(--text-2);font-size:15.5px}
.scene-list{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.scene-list li{display:flex;gap:12px;font-size:15px;color:var(--text-2)}
.scene-list i{color:var(--primary);margin-top:5px}
.scene-row.reverse{flex-direction:row-reverse}
@media(max-width:1023px){
  .scene-row,.scene-row.reverse{flex-direction:column;gap:28px}
  .scene-media{flex:1 1 auto;max-width:100%}
  .scene-row+.scene-row{margin-top:56px}
}

/* ============ 社会认同（浅底） ============ */
.proof-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:56px}
.proof-stat{padding:24px;border-radius:var(--r-card);background:#fff;border:1px solid var(--line-light);box-shadow:var(--sh-light)}
.proof-stat b{display:block;font-size:34px;font-weight:800;color:var(--ink);line-height:1.15;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.proof-stat span{display:block;margin-top:8px;font-size:14px;color:var(--ink-2)}
.logo-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-bottom:56px}
.logo-chip{
  display:flex;align-items:center;justify-content:center;
  height:64px;border-radius:14px;background:#fff;border:1px solid var(--line-light);
  color:#8A9AAB;font-size:13px;font-weight:700;letter-spacing:.04em;
  filter:grayscale(1);transition:filter .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.logo-chip:hover{filter:none;color:var(--ink-2);border-color:#C9D6E3}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.quote-card{background:#fff;border:1px solid var(--line-light);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-light)}
.quote-card p{color:var(--ink-2);font-size:15px;line-height:1.8}
.quote-user{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line-light)}
.quote-avatar{
  width:40px;height:40px;border-radius:50%;flex-shrink:0;
  display:grid;place-items:center;font-weight:800;font-size:15px;color:#04231F;
  background:linear-gradient(135deg,var(--primary),var(--violet));
}
.quote-user b{display:block;font-size:14px;color:var(--ink)}
.quote-user span{display:block;font-size:12.5px;color:#8A9AAB}
@media(max-width:1023px){
  .proof-stats{grid-template-columns:repeat(2,1fr)}
  .logo-grid{grid-template-columns:repeat(3,1fr)}
  .quote-grid{grid-template-columns:1fr}
}
@media(max-width:639px){
  .proof-stats{grid-template-columns:1fr;gap:14px}
  .logo-grid{grid-template-columns:repeat(2,1fr)}
}

/* ============ 资讯列表 ============ */
.news-lead{
  display:block;height:100%;border-radius:var(--r-card);overflow:hidden;
  background:var(--panel);border:1px solid var(--line);box-shadow:var(--sh-deep);
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.news-lead:hover{transform:translateY(-4px);border-color:rgba(43,227,200,.34)}
.news-lead-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--panel-2)}
.news-lead-media img{width:100%;height:100%;object-fit:cover}
.news-lead-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(7,12,22,.7))}
.news-lead-body{padding:24px}
.news-lead-body h3{font-size:20px;margin:12px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-lead-body p{color:var(--text-2);font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-time{display:inline-block;margin-top:16px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.news-list{display:flex;flex-direction:column;gap:12px;height:100%}
.news-item{
  display:block;padding:18px 20px;border-radius:14px;
  background:var(--panel);border:1px solid var(--line);
  transition:transform .18s ease-out,border-color .18s ease-out,background-color .18s ease-out;
}
.news-item:hover{transform:translateY(-2px);border-color:rgba(43,227,200,.34);background:var(--panel-2)}
.news-item h3{font-size:16px;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item p{font-size:13.5px;color:var(--text-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item-meta{display:flex;align-items:center;gap:12px;margin-top:10px;font-size:12.5px;color:var(--text-3);font-variant-numeric:tabular-nums}
.empty-state{
  text-align:center;padding:64px 24px;border-radius:var(--r-card);
  border:1px dashed var(--line-strong);background:rgba(255,255,255,.02);
}
.empty-state i{font-size:30px;color:var(--text-3);margin-bottom:14px;display:block}
.empty-state p{color:var(--text-2);margin-bottom:18px}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{
  background:rgba(255,255,255,.04);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.1);
  border-radius:16px;margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease-out;
}
.faq-item.is-open{border-color:rgba(43,227,200,.36)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:16.5px;font-weight:600;color:var(--text);
  line-height:1.5;
}
.faq-q::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--primary);flex-shrink:0;
  transition:transform .2s ease-out;
}
.faq-item.is-open .faq-q::after{content:"\f068"}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .2s ease-out;
  padding:0 24px;
}
.faq-a p{color:var(--text-2);font-size:15px;line-height:1.8;padding-bottom:20px}

/* ============ CTA / 表单 ============ */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:24px;padding:48px;
  background:linear-gradient(140deg,rgba(43,227,200,.14),rgba(122,92,255,.12) 55%,rgba(14,22,38,.9));
  border:1px solid rgba(255,255,255,.14);
  box-shadow:var(--sh-deep);
}
.cta-panel::after{
  content:"";position:absolute;right:-100px;top:-100px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,227,200,.22),transparent 68%);pointer-events:none;
}
.cta-panel h2{font-size:clamp(24px,3vw,32px);margin-bottom:14px}
.cta-panel p{color:var(--text-2);max-width:520px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}
.form-field{display:flex;flex-direction:column;gap:8px}
.form-field.full{grid-column:1/-1}
.form-field label{font-size:13px;font-weight:700;color:var(--text-2);letter-spacing:.02em}
.form-field input,.form-field textarea{
  width:100%;padding:13px 16px;border-radius:var(--r-input);
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
  color:var(--text);font-size:15px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out;
}
.form-field input::placeholder,.form-field textarea::placeholder{color:var(--text-3)}
.form-field input:focus,.form-field textarea:focus{
  outline:none;border-color:var(--primary);background:rgba(43,227,200,.06);
  box-shadow:0 0 0 3px rgba(43,227,200,.18);
}
.form-field textarea{resize:vertical;min-height:110px}
.form-note{font-size:13px;color:var(--text-3);margin-top:14px}
@media(max-width:767px){
  .cta-panel{padding:30px}
  .form-grid{grid-template-columns:1fr}
}

/* ============ 底部固定转化条 ============ */
.sticky-cta{
  position:fixed;left:50%;bottom:20px;transform:translate(-50%,14px);
  width:min(960px,calc(100% - 32px));z-index:70;
  background:rgba(14,22,38,.8);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.14);border-radius:var(--r-pill);
  padding:10px 12px 10px 22px;box-shadow:var(--sh-deep);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  opacity:0;visibility:hidden;transition:opacity .24s ease-out,transform .24s ease-out,visibility .24s;
}
.sticky-cta.is-visible{opacity:1;visibility:visible;transform:translate(-50%,0)}
.sticky-cta-text{display:flex;align-items:center;gap:14px;font-size:14px;color:var(--text-2);min-width:0}
.sticky-cta-text b{color:var(--primary);font-variant-numeric:tabular-nums}
@media(max-width:767px){
  .sticky-cta{left:0;right:0;bottom:0;width:100%;transform:translateY(100%);border-radius:16px 16px 0 0;padding:10px 14px;height:68px}
  .sticky-cta.is-visible{transform:translateY(0)}
  .sticky-cta-text{font-size:13px}
  .sticky-cta-text .status-pill{display:none}
}

/* ============ 页脚 ============ */
.site-footer{background:#05090F;border-top:1px solid var(--line);padding:72px 0 26px;margin-top:0}
.footer-grid{gap:0}
.footer-brand p{color:var(--text-3);font-size:14px;margin-top:16px;max-width:320px}
.footer-col{padding-top:6px}
.footer-col h3{font-size:15px;margin-bottom:18px;color:var(--text);letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{color:var(--text-3);font-size:14px;position:relative;display:inline-block}
.footer-col a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--primary);transition:width .2s ease-out}
.footer-col a:hover{color:var(--primary)}
.footer-col a:hover::after{width:100%}
.footer-contact li{color:var(--text-3);font-size:14px}
.footer-contact b{color:var(--text);font-weight:600}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
@media(max-width:1023px){
  .footer-col{margin-top:34px}
  .site-footer{padding-bottom:96px}
}
@media(max-width:639px){
  .site-footer{padding-top:52px}
  .footer-bottom{flex-direction:column;gap:8px}
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .5s ease-out,transform .5s ease-out}
.reveal.is-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --ink:#070C16;
  --panel:#0E1626;
  --panel-2:#121C2E;
  --light:#F5F8FC;
  --primary:#2BE3C8;
  --primary-hover:#57F0DA;
  --primary-press:#1FBFA9;
  --primary-ink:#0F9C8B;
  --violet:#7A5CFF;
  --amber:#FFB547;
  --text:#E9F1FA;
  --text-2:#9FB3C8;
  --text-3:#6B819B;
  --text-dark:#0F1B2B;
  --text-dark-2:#4A5C70;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --line-light:#E1E8F0;
  --radius-card:18px;
  --radius-input:12px;
  --radius-pill:999px;
  --shadow-card:0 12px 32px rgba(0,0,0,.5);
  --shadow-light:0 10px 30px rgba(16,32,56,.08);
  --container:1200px;
  --ease:cubic-bezier(.3,.7,.4,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.005em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease);}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.28;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
.mono{font-variant-numeric:tabular-nums;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
@media (min-width:1440px){.container{max-width:1280px;padding:0 32px;}}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:72px;display:flex;align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:height .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),backdrop-filter .22s var(--ease);
}
.site-header.is-scrolled{
  height:60px;
  background:rgba(9,14,24,.78);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary) 0%,var(--violet) 100%);
  box-shadow:0 8px 20px rgba(43,227,200,.24);
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{display:flex;flex-direction:column;font-size:17px;font-weight:800;letter-spacing:.01em;color:var(--text);line-height:1.15;}
.brand-text small{font-size:9px;letter-spacing:.18em;color:var(--text-3);font-weight:600;margin-top:2px;}
.main-nav ul{display:flex;align-items:center;gap:22px;}
.main-nav a{
  position:relative;display:block;padding:6px 2px;font-size:14.5px;color:var(--text-2);font-weight:600;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.main-nav a:hover{color:var(--text);}
.main-nav a:hover::after,.main-nav a.is-active::after{transform:scaleX(1);}
.main-nav a.is-active{color:var(--text);}
.header-actions{display:flex;align-items:center;gap:10px;}
.status-pill{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:12px;letter-spacing:.02em;color:var(--primary);border:1px solid rgba(43,227,200,.28);
  background:rgba(43,227,200,.08);white-space:nowrap;
}
.status-pill i{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px var(--primary);}
.countdown-pill{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:12px;letter-spacing:.02em;color:var(--amber);border:1px solid rgba(255,181,71,.28);
  background:rgba(255,181,71,.08);white-space:nowrap;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-pill);
  font-size:14.5px;font-weight:700;letter-spacing:.01em;white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn-primary{
  color:#04211C;
  background:linear-gradient(135deg,var(--primary) 0%,var(--violet) 135%);
  box-shadow:0 8px 24px rgba(43,227,200,.28);
}
.btn-primary:hover{background:linear-gradient(135deg,var(--primary-hover) 0%,#8F76FF 135%);transform:translateY(-1px);box-shadow:0 12px 30px rgba(43,227,200,.38);}
.btn-primary:active{transform:translateY(0);background:linear-gradient(135deg,var(--primary-press) 0%,#6A4DE8 135%);box-shadow:0 6px 16px rgba(43,227,200,.24);}
.btn-ghost{
  color:var(--text);border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
}
.btn-ghost:hover{border-color:rgba(43,227,200,.5);color:var(--primary);transform:translateY(-1px);}
.btn-sm{height:36px;padding:0 16px;font-size:13.5px;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);position:relative;
}
.nav-toggle span{
  position:absolute;left:11px;right:11px;height:2px;border-radius:2px;background:var(--text);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle span:nth-child(1){top:13px;}
.nav-toggle span:nth-child(2){top:19px;}
.nav-toggle span:nth-child(3){top:25px;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- 文章头部 ---------- */
main{padding-top:72px;}
.article-hero{
  position:relative;padding:56px 0 8px;
  background:
    radial-gradient(720px 340px at 12% -10%,rgba(43,227,200,.16),transparent 62%),
    radial-gradient(600px 320px at 92% 0%,rgba(122,92,255,.16),transparent 65%);
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.35;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent 78%);
}
.article-hero .container{position:relative;z-index:2;}
.breadcrumb{margin-bottom:20px;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:var(--text-3);opacity:.6;}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--primary);}
.cat-label{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:12px;letter-spacing:.04em;font-weight:700;color:var(--primary);
  background:rgba(43,227,200,.1);border:1px solid rgba(43,227,200,.26);margin-bottom:18px;
}
.article-hero h1{
  font-size:clamp(26px,3.6vw,42px);max-width:900px;margin-bottom:20px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  font-size:13px;color:var(--text-3);padding-bottom:26px;
}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:7px;}
.meta-row b{color:var(--text-2);font-weight:600;}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong);}
.cover-figure{
  margin:0;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-card);background:rgba(255,255,255,.04);position:relative;
}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.cover-figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,12,22,0) 45%,rgba(7,12,22,.55) 100%);}
.cover-figure figcaption{
  position:absolute;left:22px;bottom:18px;z-index:2;font-size:12.5px;color:var(--text-2);letter-spacing:.02em;
}

/* ---------- 文章主体 ---------- */
.article-wrap{padding:56px 0 0;}
.article-layout{display:flex;gap:40px;align-items:flex-start;}
.article-col{flex:1 1 auto;min-width:0;}
.side-col{flex:0 0 320px;width:320px;position:sticky;top:88px;}

.article-card{
  background:var(--light);color:var(--text-dark);
  border-radius:var(--radius-card);padding:44px 46px;
  box-shadow:var(--shadow-light);border:1px solid var(--line-light);
}
.article-tags{
  display:flex;flex-wrap:wrap;gap:8px;margin-top:30px;padding-top:24px;border-top:1px solid var(--line-light);
}
.tag-chip{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:600;color:var(--primary-ink);
  background:rgba(43,227,200,.12);border:1px solid rgba(15,156,139,.24);
}
.tag-chip.muted{color:var(--text-dark-2);background:#EEF3FA;border-color:#DCE5F0;}

.article-body{font-size:17px;line-height:1.9;color:#2C3E52;}
.article-body>*+*{margin-top:20px;}
.article-body h2{
  font-size:27px;color:var(--text-dark);margin-top:44px;padding-left:16px;position:relative;
  scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--primary),var(--violet));
}
.article-body h3{font-size:19px;color:var(--text-dark);margin-top:32px;scroll-margin-top:96px;}
.article-body p{color:#33475E;}
.article-body a{color:var(--primary-ink);font-weight:600;text-decoration:underline;text-decoration-color:rgba(15,156,139,.35);text-underline-offset:3px;}
.article-body a:hover{color:#0B7C6E;text-decoration-color:#0B7C6E;}
.article-body ul,.article-body ol{padding-left:4px;}
.article-body li{position:relative;padding-left:24px;margin-top:10px;color:#33475E;}
.article-body ul>li::before{
  content:"";position:absolute;left:6px;top:.72em;width:7px;height:7px;border-radius:50%;
  background:var(--primary-ink);
}
.article-body ol{counter-reset:item;}
.article-body ol>li{counter-increment:item;}
.article-body ol>li::before{
  content:counter(item,decimal-leading-zero);
  position:absolute;left:0;top:.15em;font-size:13px;font-weight:800;color:var(--primary-ink);
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:26px 0;padding:20px 24px;border-left:4px solid var(--primary);
  background:#EAF4F9;border-radius:0 var(--radius-input) var(--radius-input) 0;color:#26405A;
}
.article-body img{border-radius:14px;margin:26px auto;border:1px solid var(--line-light);}
.article-body code{background:#E9EFF7;padding:2px 7px;border-radius:6px;font-size:14.5px;color:#12405A;}
.article-body pre{background:#0E1626;color:#CFE6F5;padding:20px 22px;border-radius:14px;overflow:auto;font-size:14px;line-height:1.7;}
.article-body pre code{background:none;color:inherit;padding:0;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;overflow:hidden;border-radius:12px;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line-light);text-align:left;}
.article-body th{background:#EAF1F9;font-weight:700;color:var(--text-dark);}
.article-body hr{border:0;border-top:1px solid var(--line-light);margin:34px 0;}

/* ---------- 侧栏 ---------- */
.widget{
  background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 22px 24px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.widget+.widget{margin-top:18px;}
.widget h2,.widget h3{
  font-size:15px;letter-spacing:.02em;color:var(--text);margin-bottom:14px;
  display:flex;align-items:center;gap:9px;
}
.widget h2::before,.widget h3::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);
}
.toc ol{counter-reset:toc;}
.toc li{counter-increment:toc;margin-bottom:2px;}
.toc a{
  display:flex;gap:10px;padding:8px 10px;border-radius:10px;font-size:13.5px;color:var(--text-2);
  line-height:1.55;transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.toc a::before{
  content:counter(toc,decimal-leading-zero);font-size:12px;font-weight:700;color:var(--text-3);
  font-variant-numeric:tabular-nums;flex:0 0 auto;
}
.toc a:hover{background:rgba(43,227,200,.1);color:var(--primary);transform:translateX(2px);}
.related li+li{margin-top:14px;padding-top:14px;border-top:1px solid var(--line);}
.related a{display:flex;gap:12px;align-items:flex-start;}
.related .thumb{
  flex:0 0 64px;width:64px;height:48px;border-radius:10px;overflow:hidden;border:1px solid var(--line);
  background:rgba(43,227,200,.1);
}
.related .thumb img{width:100%;height:100%;object-fit:cover;}
.related .r-title{font-size:14px;font-weight:700;color:var(--text);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.related .r-meta{font-size:12px;color:var(--text-3);margin-top:5px;}
.related a:hover .r-title{color:var(--primary);}
.widget-cta{
  background:linear-gradient(150deg,rgba(43,227,200,.14),rgba(122,92,255,.16));
  border:1px solid rgba(43,227,200,.28);
}
.widget-cta p{font-size:13.5px;color:var(--text-2);line-height:1.7;margin-bottom:16px;}
.widget-cta .btn{width:100%;}

.empty-state{
  background:var(--light);color:var(--text-dark);border-radius:var(--radius-card);
  padding:56px 40px;text-align:center;box-shadow:var(--shadow-light);
}
.empty-state h2{font-size:24px;color:var(--text-dark);margin-bottom:12px;}
.empty-state p{color:var(--text-dark-2);font-size:15.5px;margin-bottom:24px;}
.empty-state .btn-primary{color:#04211C;}

/* ---------- CTA 区块 ---------- */
.cta-band{padding:80px 0 96px;}
.cta-card{
  position:relative;overflow:hidden;border-radius:24px;padding:52px 48px;
  background:linear-gradient(135deg,rgba(43,227,200,.14),rgba(122,92,255,.16));
  border:1px solid rgba(43,227,200,.26);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-card::after{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,227,200,.35),transparent 66%);
}
.cta-card h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;}
.cta-card p{color:var(--text-2);font-size:15px;max-width:600px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:2;}
.cta-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px;}
.cta-tags span{
  font-size:12px;letter-spacing:.02em;padding:5px 12px;border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);color:var(--text-2);background:rgba(255,255,255,.05);
}

/* ---------- 固定转化条 ---------- */
.mobile-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:55;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:12px 20px;min-height:64px;
  background:rgba(9,14,24,.82);border-top:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transform:translateY(110%);opacity:0;
  transition:transform .26s var(--ease),opacity .26s var(--ease);
}
.mobile-cta.is-visible{transform:translateY(0);opacity:1;}
.mobile-cta .m-text{font-size:13px;color:var(--text-2);line-height:1.4;}
.mobile-cta .m-text b{display:block;color:var(--text);font-size:14.5px;font-weight:700;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#05090F;border-top:1px solid var(--line);padding:72px 0 28px;margin-top:0;
}
.footer-grid{padding-bottom:44px;}
.footer-brand p{color:var(--text-3);font-size:14px;line-height:1.8;margin-top:18px;max-width:330px;}
.footer-col h3{font-size:15px;color:var(--text);margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul li+li{margin-top:11px;}
.footer-col a{font-size:14px;color:var(--text-2);position:relative;display:inline-block;}
.footer-col a::after{
  content:"";position:absolute;left:0;bottom:-2px;width:100%;height:1px;background:var(--primary);
  transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.footer-col a:hover{color:var(--primary);}
.footer-col a:hover::after{transform:scaleX(1);}
.footer-contact li{font-size:13.5px;color:var(--text-3);line-height:1.7;}
.footer-contact b{display:block;color:var(--text-2);font-size:13px;font-weight:700;margin-bottom:2px;}
.footer-bottom{
  border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;
  gap:14px;flex-wrap:wrap;font-size:13px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .article-layout{flex-direction:column;gap:32px;}
  .side-col{position:static;width:100%;flex:1 1 auto;}
  .article-card{padding:34px 28px;}
  .nav-toggle{display:block;}
  .main-nav{
    position:fixed;top:72px;left:0;right:0;bottom:0;z-index:50;
    background:rgba(7,12,22,.97);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    padding:26px 24px 40px;overflow-y:auto;
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:transform .22s var(--ease),opacity .22s var(--ease);
  }
  .main-nav.is-open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0;}
  .main-nav li+li{border-top:1px solid var(--line);}
  .main-nav a{padding:16px 4px;font-size:16px;color:var(--text);}
  .main-nav a::after{display:none;}
  .main-nav a.is-active{color:var(--primary);}
  .header-actions .status-pill,.header-actions .countdown-pill{display:none;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  main{padding-top:64px;}
  .site-header{height:64px;}
  .main-nav{top:64px;}
  .article-hero{padding:36px 0 4px;}
  .article-body{font-size:16.5px;line-height:1.85;}
  .article-body h2{font-size:22px;margin-top:34px;}
  .article-body h3{font-size:17.5px;}
  .cta-card{padding:34px 26px;border-radius:20px;}
  .cta-band{padding:56px 0 72px;}
  .site-footer{padding:56px 0 24px;}
  .footer-bottom{flex-direction:column;}
  body{padding-bottom:76px;}
}
@media (max-width:520px){
  .brand-text{font-size:15.5px;}
  .brand-text small{display:none;}
  .article-card{padding:26px 20px;border-radius:16px;}
  .article-hero h1{font-size:25px;}
  .meta-row{gap:8px 14px;font-size:12.5px;}
  .cover-figure figcaption{left:14px;bottom:12px;font-size:11.5px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .mobile-cta{padding:10px 14px;gap:10px;}
  .mobile-cta .m-text{display:none;}
  .mobile-cta .btn{flex:1 1 auto;}
}

/* roulang page: category1 */
:root{
  --ink-900:#070C16;
  --ink-800:#0E1626;
  --ink-700:#121C2E;
  --brand:#2BE3C8;
  --brand-hi:#57F0DA;
  --brand-press:#1FBFA9;
  --violet:#7A5CFF;
  --amber:#FFB547;
  --text:#E9F1FA;
  --text-2:#9FB3C8;
  --text-3:#6B819B;
  --light-bg:#F5F8FC;
  --light-text:#0F1B2B;
  --light-text-2:#4A5C70;
  --light-line:#E1E8F0;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.05);
  --glass-strong:rgba(255,255,255,.07);
  --radius-card:18px;
  --radius-input:12px;
  --radius-pill:999px;
  --shadow-deep:0 12px 32px rgba(0,0,0,.5);
  --shadow-soft:0 10px 30px rgba(16,32,56,.08);
  --glow:0 8px 24px rgba(43,227,200,.28);
  --font: "PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--ink-900);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .18s ease}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
section{position:relative}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(7,12,22,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
  box-shadow:0 8px 30px rgba(0,0,0,.35);
}
.header-inner{display:flex;align-items:center;gap:26px;height:72px;transition:height .25s ease}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand) 0%,var(--violet) 130%);
  box-shadow:0 6px 18px rgba(43,227,200,.24);
  flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.15;font-size:16px;font-weight:800;color:var(--text)}
.brand-text small{font-size:10px;letter-spacing:.14em;color:var(--text-3);font-weight:600;margin-top:3px}
.main-nav{margin-left:auto}
.main-nav ul{display:flex;align-items:center;gap:4px}
.main-nav a{
  position:relative;display:inline-block;padding:9px 13px;border-radius:var(--radius-pill);
  font-size:14.5px;color:var(--text-2);font-weight:600;white-space:nowrap;
}
.main-nav a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.main-nav a.is-active{color:var(--brand-hi)}
.main-nav a.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--violet));
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.status-pill,.countdown-pill{
  display:inline-flex;align-items:center;gap:7px;height:30px;padding:0 12px;
  border-radius:var(--radius-pill);font-size:12px;letter-spacing:.02em;font-weight:600;
  border:1px solid var(--line);background:var(--glass);color:var(--text-2);white-space:nowrap;
}
.status-pill i{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(43,227,200,.16)}
.countdown-pill{color:var(--amber);border-color:rgba(255,181,71,.28);background:rgba(255,181,71,.08)}
.nav-toggle{
  display:none;width:42px;height:38px;border:1px solid var(--line);border-radius:12px;
  background:var(--glass);cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .22s ease,opacity .22s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-pill);border:1px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-primary{
  color:#04241F;
  background:linear-gradient(135deg,var(--brand) 0%,var(--violet) 135%);
  box-shadow:var(--glow);
}
.btn-primary:hover{background:linear-gradient(135deg,var(--brand-hi) 0%,var(--violet) 135%);transform:translateY(-1px);box-shadow:0 12px 30px rgba(43,227,200,.36);color:#04241F}
.btn-primary:active{transform:translateY(0);background:linear-gradient(135deg,var(--brand-press) 0%,var(--violet) 135%);box-shadow:0 6px 16px rgba(43,227,200,.24)}
.btn-ghost{
  color:var(--text);border-color:var(--line);background:var(--glass);
}
.btn-ghost:hover{border-color:rgba(43,227,200,.45);color:var(--brand-hi);transform:translateY(-1px);background:rgba(43,227,200,.08)}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:700;font-size:14.5px}
.text-link::after{content:"→";transition:transform .18s ease}
.text-link:hover{color:var(--brand-hi)}
.text-link:hover::after{transform:translateX(4px)}

/* ---------- hero ---------- */
.page-hero{
  padding:148px 0 68px;overflow:hidden;border-bottom:1px solid var(--line);
  background:radial-gradient(760px 340px at 12% 0%,rgba(43,227,200,.16),transparent 62%),var(--ink-900);
}
.page-hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;opacity:.3;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,22,.72) 0%,rgba(7,12,22,.92) 62%,var(--ink-900) 100%);
}
.page-hero .container{position:relative;z-index:2}
.crumbs{margin-bottom:26px}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3)}
.crumbs li::after{content:"/";margin-left:8px;color:var(--text-3)}
.crumbs li:last-child::after{display:none}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--brand-hi)}
.crumbs [aria-current="page"]{color:var(--brand)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;margin-bottom:20px;
  border-radius:var(--radius-pill);border:1px solid rgba(43,227,200,.3);background:rgba(43,227,200,.08);
  color:var(--brand-hi);font-size:12.5px;font-weight:700;letter-spacing:.04em;
}
.page-hero h1{
  font-size:clamp(30px,4.4vw,56px);line-height:1.16;font-weight:800;max-width:16em;
}
.page-hero h1 em{font-style:normal;color:var(--brand)}
.hero-lead{margin-top:20px;max-width:44em;font-size:17px;line-height:1.85;color:var(--text-2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}
.stat-chip{
  min-width:150px;padding:16px 20px;border-radius:14px;border:1px solid var(--line);
  background:var(--glass);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.stat-chip b{display:block;font-size:26px;font-weight:800;color:var(--brand-hi);line-height:1.2}
.stat-chip span{font-size:13px;color:var(--text-3)}

/* ---------- generic section ---------- */
.section{padding:88px 0}
.section-head{max-width:760px;margin-bottom:46px}
.section-head h2{font-size:clamp(24px,3vw,32px);line-height:1.3}
.section-head p{margin-top:14px;color:var(--text-2);font-size:15.5px}
.kicker{display:block;font-size:12.5px;font-weight:700;letter-spacing:.12em;color:var(--brand);margin-bottom:12px}

/* ---------- split blocks ---------- */
.split{align-items:center}
.split + .split{margin-top:72px}
.split-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-card);
  border:1px solid var(--line);box-shadow:var(--shadow-deep);
}
.split-text h3{font-size:24px;line-height:1.35;margin-bottom:16px}
.split-text p{color:var(--text-2);font-size:15.5px;margin-bottom:14px}
.tick-list{margin-top:20px;display:grid;gap:10px}
.tick-list li{position:relative;padding-left:24px;color:var(--text);font-size:14.5px}
.tick-list li::before{
  content:"";position:absolute;left:2px;top:9px;width:10px;height:10px;border-radius:3px;
  background:linear-gradient(135deg,var(--brand),var(--violet));
}
@media (min-width:1024px){
  .split--reverse .split-media{order:2}
  .split--reverse .split-text{order:1}
}

/* ---------- points ---------- */
.section-alt{background:linear-gradient(180deg,var(--ink-900) 0%,var(--ink-800) 40%,var(--ink-900) 100%);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.points{display:grid;gap:16px;grid-template-columns:repeat(1,minmax(0,1fr))}
@media (min-width:640px){.points{grid-template-columns:repeat(2,minmax(0,1fr))}}
.point{
  display:flex;gap:16px;padding:22px;border-radius:var(--radius-card);
  border:1px solid var(--line);background:var(--ink-700);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.point:hover{border-color:rgba(43,227,200,.35);transform:translateY(-3px);box-shadow:var(--shadow-deep)}
.point-no{
  flex:0 0 auto;width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;color:var(--brand-hi);
  border:1px solid rgba(43,227,200,.28);background:rgba(43,227,200,.08);
  font-variant-numeric:tabular-nums;
}
.point h3{font-size:17px;margin-bottom:6px}
.point p{font-size:14.5px;color:var(--text-2);line-height:1.7}

/* ---------- cta strip ---------- */
.cta-strip{padding:0 0 88px}
.cta-strip-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  padding:30px 32px;border-radius:var(--radius-card);
  border:1px solid rgba(43,227,200,.3);
  background:linear-gradient(135deg,rgba(43,227,200,.12) 0%,rgba(122,92,255,.12) 100%),var(--glass);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-deep);
}
.cta-strip-inner h3{font-size:21px;line-height:1.4;margin-bottom:8px}
.cta-strip-inner p{color:var(--text-2);font-size:14.5px;max-width:52em}
.cta-strip-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- faq ---------- */
.faq-wrap{max-width:880px}
.accordion{background:transparent;border:0;margin:0}
.accordion .accordion-item{
  border:1px solid var(--line);border-radius:14px;background:var(--glass);
  margin-bottom:12px;overflow:hidden;
}
.accordion .accordion-title{
  display:block;border:0;background:transparent;position:relative;
  padding:20px 58px 20px 22px;font-size:16.5px;font-weight:600;color:var(--text);line-height:1.6;
}
.accordion .accordion-title:hover{color:var(--brand-hi);background:rgba(43,227,200,.05)}
.accordion .accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;line-height:1;color:var(--brand);transition:transform .2s ease;
}
.accordion .accordion-item.is-active .accordion-title::before{content:"−"}
.accordion .accordion-item.is-active{border-color:rgba(43,227,200,.32)}
.accordion .accordion-content{
  border:0;background:transparent;padding:0 22px 20px;color:var(--text-2);font-size:15px;line-height:1.8;
}

/* ---------- assessment form ---------- */
.assess-panel{
  display:grid;gap:32px;padding:34px;border-radius:var(--radius-card);
  border:1px solid var(--line);background:var(--ink-700);box-shadow:var(--shadow-deep);
}
@media (min-width:1024px){.assess-panel{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:44px;padding:44px}}
.assess-copy h2{font-size:clamp(22px,2.6vw,28px);line-height:1.35}
.assess-copy p{margin-top:14px;color:var(--text-2);font-size:15.5px}
.assess-facts{margin-top:24px;display:grid;gap:12px}
.assess-facts li{display:flex;gap:12px;font-size:14.5px;color:var(--text-2)}
.assess-facts b{color:var(--text);font-weight:700}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--text-2);margin-bottom:7px}
.field input,.field textarea{
  width:100%;padding:13px 15px;border-radius:var(--radius-input);
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text);
  font-size:15px;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.field textarea{min-height:112px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);background:rgba(43,227,200,.06);
  box-shadow:0 0 0 3px rgba(43,227,200,.2);
}
.form-note{margin-top:14px;font-size:13px;color:var(--text-3)}

/* ---------- footer ---------- */
.site-footer{
  margin-top:20px;padding:72px 0 34px;
  background:var(--ink-800);border-top:1px solid var(--line);
}
.footer-grid{gap:32px 0}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{color:var(--text-2);font-size:14.5px;max-width:32em}
.footer-col h3{font-size:15px;margin-bottom:16px;color:var(--text)}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14.5px;color:var(--text-2);position:relative;display:inline-block}
.footer-col a::after{
  content:"";position:absolute;left:0;right:100%;bottom:-2px;height:1px;background:var(--brand);
  transition:right .22s ease;
}
.footer-col a:hover{color:var(--brand-hi)}
.footer-col a:hover::after{right:0}
.footer-contact li{font-size:14px;color:var(--text-2)}
.footer-contact b{display:block;color:var(--text);font-size:13.5px;margin-bottom:2px}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* ---------- fixed convert bar ---------- */
.convert-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  padding:10px 0 calc(10px + env(safe-area-inset-bottom,0px));
  background:rgba(14,22,38,.86);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
  transform:translateY(110%);opacity:0;pointer-events:none;
  transition:transform .28s ease,opacity .28s ease;
}
.convert-bar.is-visible{transform:translateY(0);opacity:1;pointer-events:auto}
.convert-inner{display:flex;align-items:center;gap:14px}
.convert-text{font-size:14.5px;color:var(--text-2);margin-right:auto}
.convert-inner .btn{flex:0 0 auto}
body{padding-bottom:70px}

/* ---------- responsive ---------- */
@media (min-width:1024px){
  .nav-toggle{display:none}
}
@media (max-width:1023px){
  .main-nav{
    position:fixed;inset:0;z-index:95;padding:96px 24px 40px;
    background:rgba(7,12,22,.97);
    -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    transform:translateX(100%);transition:transform .28s ease;overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0)}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0}
  .main-nav a{padding:17px 4px;font-size:18px;border-radius:0;border-bottom:1px solid var(--line)}
  .main-nav a.is-active::after{left:4px;right:auto;width:34px;bottom:10px}
  .nav-toggle{display:inline-flex}
  .header-actions .countdown-pill{display:none}
  .section{padding:64px 0}
  .page-hero{padding:118px 0 52px}
  .stat-chip{min-width:128px;padding:14px 16px}
}
@media (max-width:640px){
  .container{padding:0 18px}
  .header-inner{gap:14px}
  .brand-text small{display:none}
  .status-pill{display:none}
  .hero-actions .btn{width:100%}
  .hero-stats{gap:10px}
  .stat-chip{flex:1 1 44%;min-width:0}
  .cta-strip-inner{padding:24px 20px}
  .cta-strip-actions{width:100%}
  .cta-strip-actions .btn{width:100%}
  .assess-panel{padding:24px 20px}
  .footer-bottom{flex-direction:column}
  .convert-text{display:none}
  .convert-inner{justify-content:space-between}
}

/* roulang page: category3 */
:root{
  --bg:#070C16;
  --bg-panel:#0E1626;
  --bg-deep:#0A101C;
  --bg-light:#F5F8FC;
  --brand:#2BE3C8;
  --brand-hover:#57F0DA;
  --brand-press:#1FBFA9;
  --violet:#7A5CFF;
  --amber:#FFB547;
  --text:#E9F1FA;
  --text-2:#9FB3C8;
  --text-3:#6B819B;
  --text-dark:#0F1B2B;
  --text-dark-2:#4A5C70;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --line-light:#E1E8F0;
  --radius-card:18px;
  --radius-img:18px;
  --radius-input:12px;
  --radius-pill:999px;
  --shadow-card:0 12px 32px rgba(0,0,0,.5);
  --shadow-light:0 10px 30px rgba(16,32,56,.08);
  --container:1200px;
  --ease:cubic-bezier(.32,.72,.28,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  overflow-x:hidden;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--brand)}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.26}
h1{font-size:clamp(30px,4.4vw,56px)}
h2{font-size:clamp(23px,2.6vw,31px)}
h3{font-size:19px}
button{font-family:inherit}
input,textarea{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:1440px){.container{max-width:1280px}}
.section{padding:96px 0}
.section-sm{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;color:var(--brand);text-transform:uppercase;margin-bottom:14px}
.section-head .eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand);box-shadow:0 0 10px rgba(43,227,200,.7)}
.section-head h2{color:var(--text)}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px;max-width:640px}
.section-light{background:var(--bg-light);color:var(--text-dark)}
.section-light .section-head h2{color:var(--text-dark)}
.section-light .section-head p{color:var(--text-dark-2)}
.section-light .section-head .eyebrow{color:var(--brand-press)}
.section-light .section-head .eyebrow::before{background:var(--brand-press);box-shadow:none}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  border-bottom:1px solid transparent;
  background:transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,12,22,.74);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px rgba(0,0,0,.35);
}
.header-inner{display:flex;align-items:center;gap:18px;height:72px;transition:height .25s var(--ease)}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--violet));
  box-shadow:0 6px 18px rgba(43,227,200,.3);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{
  display:flex;flex-direction:column;line-height:1.1;
  font-size:17px;font-weight:800;color:var(--text);letter-spacing:.01em;
}
.brand-text small{font-size:9px;font-weight:600;letter-spacing:.18em;color:var(--text-3);margin-top:3px}
.main-nav ul{display:flex;align-items:center;gap:2px}
.main-nav a{
  position:relative;display:inline-block;
  padding:8px 12px;border-radius:var(--radius-pill);
  font-size:14.5px;color:var(--text-2);
  transition:color .18s var(--ease),background .18s var(--ease);
}
.main-nav a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.main-nav a.is-active{color:var(--text)}
.main-nav a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
  border-radius:2px;background:var(--brand);box-shadow:0 0 10px rgba(43,227,200,.75);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.status-pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.02em;padding:6px 12px;border-radius:var(--radius-pill);
  border:1px solid rgba(43,227,200,.3);background:rgba(43,227,200,.08);color:var(--brand);
  white-space:nowrap;
}
.status-pill i{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 8px var(--brand);animation:pulse 2s infinite}
.countdown-pill{
  font-size:12px;letter-spacing:.02em;padding:6px 12px;border-radius:var(--radius-pill);
  border:1px solid rgba(255,181,71,.32);background:rgba(255,181,71,.1);color:var(--amber);
  white-space:nowrap;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.82)}}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;padding:0 11px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:12px;cursor:pointer;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--text);transition:transform .22s var(--ease),opacity .22s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border:1px solid transparent;border-radius:var(--radius-pill);
  font-size:15px;font-weight:700;cursor:pointer;white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--violet));
  color:#06231F;
  box-shadow:0 8px 24px rgba(43,227,200,.28);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 14px 32px rgba(43,227,200,.42);color:#06231F}
.btn-primary:active{transform:translateY(0);background:linear-gradient(135deg,var(--brand-press),#6647e6)}
.btn-ghost{
  background:rgba(255,255,255,.05);border-color:var(--line);color:var(--text);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:rgba(43,227,200,.45);color:var(--brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:8px 16px;font-size:13.5px}
.btn-lg{padding:15px 30px;font-size:16px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:14.5px}
.link-arrow::after{content:"→";transition:transform .18s var(--ease)}
.link-arrow:hover::after{transform:translateX(4px)}

/* ---------- page banner ---------- */
.page-banner{position:relative;padding:150px 0 76px;overflow:hidden;border-bottom:1px solid var(--line)}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
  opacity:.34;
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(620px 320px at 18% 24%,rgba(43,227,200,.16),transparent 68%),
    linear-gradient(180deg,rgba(7,12,22,.72) 0%,rgba(7,12,22,.9) 58%,var(--bg) 100%);
}
.page-banner .container{position:relative;z-index:2}
.crumbs{margin-bottom:22px}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3)}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:var(--text-3);opacity:.6}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--brand)}
.banner-title{max-width:820px}
.banner-title h1{color:#fff}
.banner-title .lead{margin-top:18px;font-size:clamp(16px,1.6vw,19px);color:var(--text-2);max-width:660px;line-height:1.8}
.banner-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:var(--radius-pill);font-size:13px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text-2);
}
.tag b{color:var(--brand);font-weight:700}
.tag-amber{border-color:rgba(255,181,71,.34);background:rgba(255,181,71,.1);color:var(--amber)}
.tag-amber b{color:var(--amber)}
.banner-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:38px;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:11px;top:10px;bottom:14px;width:2px;
  background:linear-gradient(180deg,rgba(43,227,200,.72),rgba(122,92,255,.42) 62%,transparent);
}
.tl-item{position:relative;padding-bottom:28px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:-38px;top:22px;width:24px;height:24px;border-radius:50%;
  display:grid;place-items:center;
  font-size:11px;font-weight:700;letter-spacing:0;
  color:var(--brand);background:var(--bg-panel);
  border:1px solid rgba(43,227,200,.55);
  box-shadow:0 0 16px rgba(43,227,200,.42);
}
.tl-card{
  background:var(--bg-panel);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 26px;box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.tl-card:hover{transform:translateY(-4px);border-color:rgba(43,227,200,.32);box-shadow:0 18px 40px rgba(0,0,0,.55)}
.tl-card h3{color:#fff;margin-bottom:10px}
.tl-card p{color:var(--text-2);font-size:15px;line-height:1.78;max-width:760px}
.tl-card .mini-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tl-card .mini-list span{
  font-size:12.5px;padding:5px 11px;border-radius:var(--radius-pill);
  background:rgba(122,92,255,.12);border:1px solid rgba(122,92,255,.28);color:#C6BBFF;
}

/* ---------- compare ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-card{
  border-radius:var(--radius-card);padding:26px 26px 22px;
  border:1px solid var(--line);background:rgba(255,255,255,.025);
}
.compare-card.is-brand{
  background:linear-gradient(160deg,rgba(43,227,200,.11),rgba(122,92,255,.09));
  border-color:rgba(43,227,200,.28);
  box-shadow:0 14px 36px rgba(0,0,0,.45);
}
.compare-card h3{margin-bottom:6px;color:#fff}
.compare-card .sub{font-size:13.5px;color:var(--text-3);margin-bottom:18px}
.compare-card.is-brand .sub{color:rgba(43,227,200,.85)}
.check-list li{display:flex;gap:12px;padding:12px 0;border-top:1px solid var(--line);font-size:15px;color:var(--text-2);line-height:1.72}
.check-list li:first-child{border-top:0;padding-top:0}
.check-list .mark{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;
  font-size:12px;font-weight:700;margin-top:3px;
}
.mark-x{background:rgba(255,107,107,.14);border:1px solid rgba(255,107,107,.4);color:#FF8B8B}
.mark-v{background:rgba(43,227,200,.16);border:1px solid rgba(43,227,200,.45);color:var(--brand)}

/* ---------- metrics ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  padding:26px;border-radius:var(--radius-card);
  border:1px solid var(--line);background:var(--bg-panel);box-shadow:var(--shadow-card);
}
.metric{padding:6px 4px;border-left:1px solid var(--line);padding-left:20px}
.metric:first-child{border-left:0;padding-left:4px}
.metric .num{font-size:clamp(26px,3vw,34px);font-weight:800;color:var(--brand);line-height:1.1}
.metric .num small{font-size:15px;font-weight:700;margin-left:2px;color:var(--brand-hover)}
.metric p{margin-top:8px;font-size:14px;color:var(--text-2);line-height:1.7}

/* ---------- scene ---------- */
.scene-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.scene-media{
  position:relative;border-radius:var(--radius-img);overflow:hidden;
  border:1px solid var(--line-strong);aspect-ratio:16/10;background:rgba(255,255,255,.04);
}
.scene-media img{width:100%;height:100%;object-fit:cover;opacity:.9}
.scene-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,12,22,.12),rgba(7,12,22,.6))}
.scene-float{
  position:absolute;left:20px;bottom:20px;z-index:2;
  padding:12px 18px;border-radius:14px;
  background:rgba(10,16,28,.66);border:1px solid rgba(43,227,200,.3);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.scene-float b{display:block;font-size:20px;color:var(--brand);font-weight:800}
.scene-float span{font-size:12.5px;color:var(--text-2)}
.scene-text h2{color:#fff;margin-bottom:18px}
.scene-text p{color:var(--text-2);font-size:16px;line-height:1.85}
.scene-list{margin-top:26px}
.scene-list li{
  display:flex;gap:14px;padding:16px 0;border-top:1px solid var(--line);
}
.scene-list li:first-child{border-top:0;padding-top:0}
.scene-list .idx{
  flex:0 0 auto;width:30px;height:30px;border-radius:10px;display:grid;place-items:center;
  font-size:12.5px;font-weight:800;color:var(--brand);
  background:rgba(43,227,200,.1);border:1px solid rgba(43,227,200,.3);
}
.scene-list h3{font-size:16.5px;color:#fff;margin-bottom:4px}
.scene-list p{font-size:14.5px;color:var(--text-2);line-height:1.75}

/* ---------- glass cta card ---------- */
.glass-cta{
  position:relative;overflow:hidden;
  border-radius:22px;padding:44px 40px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.14);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:0 18px 44px rgba(0,0,0,.5);
}
.glass-cta::before{
  content:"";position:absolute;width:420px;height:420px;right:-140px;top:-180px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,227,200,.28),transparent 68%);
  pointer-events:none;
}
.glass-cta h2{position:relative;color:#fff;max-width:640px}
.glass-cta p{position:relative;margin-top:14px;color:var(--text-2);max-width:620px}
.glass-cta .actions{position:relative;display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-list.accordion{
  background:transparent;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);
}
.faq-list .accordion-item{border:0;border-top:1px solid var(--line);background:transparent}
.faq-list .accordion-item:first-child{border-top:0}
.faq-list .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 26px;border:0;background:transparent;
  font-size:16.5px;font-weight:600;color:var(--text);line-height:1.6;
  transition:color .18s var(--ease),background .18s var(--ease);
}
.faq-list .accordion-title::before{
  content:"+";order:2;flex:0 0 auto;
  width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;font-size:16px;font-weight:700;
  color:var(--brand);background:rgba(43,227,200,.1);border:1px solid rgba(43,227,200,.3);
  transition:transform .2s var(--ease),background .2s var(--ease);
}
.faq-list .accordion-item.is-active .accordion-title::before{
  content:"−";transform:rotate(180deg);background:rgba(43,227,200,.2);
}
.faq-list .accordion-title:hover{color:var(--brand);background:rgba(255,255,255,.03)}
.faq-list .accordion-title:focus{outline:0}
.faq-list .accordion-content{
  display:none;padding:0 26px 24px;border:0;background:transparent;
  color:var(--text-2);font-size:15px;line-height:1.85;
}
.faq-list .accordion-content p{max-width:760px}

/* ---------- footer ---------- */
.site-footer{
  margin-top:0;padding:76px 0 26px;
  background:var(--bg-deep);border-top:1px solid var(--line);
}
.footer-grid{padding-bottom:48px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{color:var(--text-2);font-size:14.5px;line-height:1.85;max-width:330px}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:18px;letter-spacing:.01em}
.footer-col ul li{margin-bottom:12px}
.footer-col ul li a{color:var(--text-2);font-size:14.5px;position:relative;display:inline-block}
.footer-col ul li a::after{
  content:"";position:absolute;left:0;right:100%;bottom:-2px;height:1px;background:var(--brand);
  transition:right .2s var(--ease);
}
.footer-col ul li a:hover{color:var(--brand)}
.footer-col ul li a:hover::after{right:0}
.footer-contact li{color:var(--text-2);font-size:14px;line-height:1.7}
.footer-contact b{display:block;color:var(--text);font-weight:600;font-size:13.5px;margin-bottom:2px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  padding-top:22px;border-top:1px solid var(--line);
  color:var(--text-3);font-size:13.5px;
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;z-index:75;
    width:min(88vw,340px);padding:96px 22px 34px;
    background:rgba(9,14,25,.97);
    -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    border-left:1px solid var(--line);
    transform:translateX(106%);
    transition:transform .28s var(--ease);
    overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0)}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:8px}
  .main-nav a{
    display:block;padding:14px 16px;border-radius:14px;font-size:16px;
    background:rgba(255,255,255,.04);border:1px solid transparent;
  }
  .main-nav a.is-active{border-color:rgba(43,227,200,.4);color:var(--brand);background:rgba(43,227,200,.07)}
  .main-nav a.is-active::after{display:none}
  .status-pill,.countdown-pill{display:none}
  .section{padding:68px 0}
  .compare-grid{grid-template-columns:1fr}
  .metrics{grid-template-columns:1fr 1fr;gap:22px}
  .metric:nth-child(3){border-left:0;padding-left:4px}
  .scene-grid{grid-template-columns:1fr;gap:30px}
  .glass-cta{padding:34px 26px}
}
@media (max-width:767px){
  .header-inner{gap:12px}
  .brand-text{font-size:15.5px}
  .brand-text small{font-size:8px;letter-spacing:.14em}
  .page-banner{padding:120px 0 58px}
  .banner-cta .btn{width:100%}
  .timeline{padding-left:32px}
  .tl-dot{left:-32px;width:22px;height:22px;font-size:10px}
  .timeline::before{left:10px}
  .tl-card{padding:20px 20px}
  .metrics{grid-template-columns:1fr;padding:22px}
  .metric{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:16px}
  .metric:first-child{border-top:0;padding-top:0}
  .faq-list .accordion-title{padding:18px 18px;font-size:15.5px}
  .faq-list .accordion-content{padding:0 18px 20px}
  .glass-cta .actions .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:519px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .brand-text small{display:none}
  .scene-float{left:14px;bottom:14px;padding:10px 14px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
/* ===================== 设计令牌 ===================== */
:root{
  --bg:#070C16;
  --panel:#0E1626;
  --panel-soft:#111C2E;
  --light:#F5F8FC;
  --primary:#2BE3C8;
  --primary-hover:#57F0DA;
  --primary-press:#1FBFA9;
  --violet:#7A5CFF;
  --amber:#FFB547;
  --text:#E9F1FA;
  --text-2:#9FB3C8;
  --text-3:#6B819B;
  --light-text:#0F1B2B;
  --light-text-2:#4A5C70;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --line-light:#E1E8F0;
  --radius-card:18px;
  --radius-img:18px;
  --radius-input:12px;
  --radius-btn:999px;
  --container:1200px;
  --shadow-dark:0 12px 32px rgba(0,0,0,.5);
  --shadow-light:0 10px 30px rgba(16,32,56,.08);
  --glow:0 8px 24px rgba(43,227,200,.28);
  --ease:cubic-bezier(.23,.68,.36,1);
}

/* ===================== 基础 reset ===================== */
*,*::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,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:700;line-height:1.28;letter-spacing:-.01em;color:var(--text);}
h1{font-size:clamp(30px,4.4vw,56px);font-weight:800;}
h2{font-size:clamp(24px,2.6vw,32px);font-weight:800;}
h3{font-size:18px;font-weight:700;}
p{margin:0 0 1em;}
a{color:var(--primary);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--primary-hover);}
img{max-width:100%;height:auto;display:block;border-style:none;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,textarea{font-family:inherit;font-size:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.mono{font-variant-numeric:tabular-nums;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.01em;}

/* ===================== 容器与板块 ===================== */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
.section{padding:96px 0;position:relative;}
.section-tight{padding:64px 0;}
.section-light{background:var(--light);color:var(--light-text);}
.section-light h2,.section-light h3{color:var(--light-text);}
.section-light p{color:var(--light-text-2);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head p{margin:0;color:var(--text-2);}
.section-light .section-head p{color:var(--light-text-2);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--primary);font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);display:block;}

/* ===================== 头部导航 ===================== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .22s var(--ease),border-color .22s var(--ease),backdrop-filter .22s var(--ease);
}
.site-header.is-stuck{
  background:rgba(7,12,22,.74);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;gap:22px;height:72px;transition:height .22s var(--ease);}
.site-header.is-stuck .header-inner{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);flex-shrink:0;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:34px;height:34px;border-radius:11px;flex-shrink:0;
  background:linear-gradient(135deg,var(--primary),var(--violet));
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(43,227,200,.26);
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{display:flex;flex-direction:column;line-height:1.1;font-size:16px;font-weight:700;letter-spacing:.01em;}
.brand-text small{font-size:9.5px;letter-spacing:.22em;color:var(--text-3);font-weight:500;margin-top:3px;}

.main-nav{margin-left:auto;}
.main-nav ul{display:flex;align-items:center;gap:2px;}
.main-nav a{
  display:block;padding:9px 13px;border-radius:var(--radius-btn);
  color:var(--text-2);font-size:14.5px;font-weight:500;position:relative;
  transition:color .18s var(--ease),background .18s var(--ease);
}
.main-nav a:hover{color:var(--text);background:rgba(255,255,255,.05);}
.main-nav a.is-active{color:var(--text);}
.main-nav a.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px rgba(43,227,200,.6);
}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.status-pill,.countdown-pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.02em;padding:5px 12px;border-radius:var(--radius-btn);
  border:1px solid var(--line-strong);white-space:nowrap;
}
.status-pill{color:var(--primary);background:rgba(43,227,200,.08);}
.status-pill i{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px var(--primary);display:block;}
.countdown-pill{color:var(--amber);background:rgba(255,181,71,.08);border-color:rgba(255,181,71,.24);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);padding:0;position:relative;
}
.nav-toggle span{
  position:absolute;left:12px;right:12px;height:1.8px;background:var(--text);border-radius:2px;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle span:nth-child(1){top:15px;}
.nav-toggle span:nth-child(2){top:20px;}
.nav-toggle span:nth-child(3){top:25px;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}

/* ===================== 按钮体系 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary) 0%,#3FD9F0 46%,var(--violet) 100%);
  color:#06121F;
  box-shadow:var(--glow);
}
.btn-primary:hover{color:#06121F;transform:translateY(-1px);box-shadow:0 12px 32px rgba(43,227,200,.42);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 14px rgba(43,227,200,.28);}
.btn-ghost{
  background:rgba(255,255,255,.05);color:var(--text);border-color:var(--line-strong);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.btn-ghost:hover{color:var(--text);background:rgba(255,255,255,.09);border-color:rgba(43,227,200,.4);transform:translateY(-1px);}
.btn-sm{padding:9px 18px;font-size:13.5px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--primary);}
.link-arrow svg{width:14px;height:14px;transition:transform .18s var(--ease);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ===================== 标签 / 徽章 ===================== */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  padding:4px 12px;border-radius:var(--radius-btn);
  border:1px solid var(--line-strong);color:var(--text-2);
}
.tag-primary{color:var(--primary);border-color:rgba(43,227,200,.32);background:rgba(43,227,200,.08);}
.tag-amber{color:var(--amber);border-color:rgba(255,181,71,.3);background:rgba(255,181,71,.09);}
.tag-violet{color:#B9A8FF;border-color:rgba(122,92,255,.34);background:rgba(122,92,255,.12);}
.tag-light{color:var(--light-text-2);border-color:var(--line-light);background:#fff;}

/* ===================== 玻璃卡 ===================== */
.glass{
  background:rgba(255,255,255,.05);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-dark);
}

/* ===================== 页面首屏 ===================== */
.page-hero{position:relative;padding:146px 0 76px;overflow:hidden;border-bottom:1px solid var(--line);}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.34;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(620px 340px at 16% 20%,rgba(43,227,200,.18),transparent 68%),
             linear-gradient(180deg,rgba(7,12,22,.55) 0%,rgba(7,12,22,.94) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{margin-bottom:26px;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:var(--text-3);}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb [aria-current="page"]{color:var(--text);}
.hero-grid{display:flex;flex-wrap:wrap;align-items:flex-end;gap:40px;}
.hero-copy{flex:1 1 540px;max-width:660px;}
.hero-copy h1{margin-bottom:18px;}
.hero-copy .lead{font-size:17.5px;line-height:1.8;color:var(--text-2);margin-bottom:28px;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:34px;}
.hero-stat b{display:block;font-size:26px;font-weight:800;color:var(--primary);line-height:1.2;}
.hero-stat span{font-size:13px;color:var(--text-3);}
.hero-card{
  flex:0 1 320px;padding:26px 24px;border-radius:var(--radius-card);
  background:rgba(255,255,255,.055);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.12);
  box-shadow:var(--shadow-dark);
}
.hero-card h3{font-size:16px;margin-bottom:16px;color:var(--text);}
.hero-card ol{counter-reset:step;}
.hero-card li{
  position:relative;padding-left:38px;padding-bottom:16px;font-size:14px;color:var(--text-2);line-height:1.65;
  counter-increment:step;
}
.hero-card li:last-child{padding-bottom:0;}
.hero-card li::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;left:0;top:1px;
  width:26px;height:26px;border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  font-size:11px;font-weight:700;color:var(--primary);
  background:rgba(43,227,200,.1);border:1px solid rgba(43,227,200,.26);
  font-variant-numeric:tabular-nums;
}
.hero-card li::after{
  content:"";position:absolute;left:13px;top:30px;bottom:4px;width:1px;
  background:linear-gradient(180deg,rgba(43,227,200,.35),transparent);
}
.hero-card li:last-child::after{display:none;}

/* ===================== 筛选标签条 ===================== */
.filter-bar{
  position:sticky;top:60px;z-index:40;
  padding:18px 0;
  background:rgba(10,17,30,.86);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.filter-inner{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.filter-label{font-size:13px;color:var(--text-3);letter-spacing:.06em;flex-shrink:0;}
.filter-list{display:flex;flex-wrap:wrap;gap:8px;}
.filter-list button{
  background:rgba(255,255,255,.04);border:1px solid var(--line-strong);color:var(--text-2);
  padding:7px 16px;border-radius:var(--radius-btn);font-size:13.5px;font-weight:500;
  transition:all .18s var(--ease);
}
.filter-list button:hover{color:var(--text);border-color:rgba(43,227,200,.38);}
.filter-list button.is-current{
  background:rgba(43,227,200,.12);border-color:rgba(43,227,200,.45);color:var(--primary);font-weight:600;
}

/* ===================== 方案卡片网格 ===================== */
.plan-layout{margin-top:8px;}
.plan-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;height:100%;display:flex;flex-direction:column;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.plan-card:hover{
  transform:translateY(-4px);
  border-color:rgba(43,227,200,.3);
  box-shadow:var(--shadow-dark);
}
.plan-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--panel-soft);}
.plan-media img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
.plan-card:hover .plan-media img{transform:scale(1.04);}
.plan-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,22,.05) 40%,rgba(7,12,22,.78) 100%);
}
.plan-media .tag{position:absolute;left:14px;top:14px;z-index:2;background:rgba(7,12,22,.66);color:var(--primary);border-color:rgba(43,227,200,.32);}
.plan-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.plan-body h3{font-size:18px;margin-bottom:10px;}
.plan-body p{font-size:14.5px;color:var(--text-2);line-height:1.75;margin-bottom:16px;}
.plan-points{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;}
.plan-points span{
  font-size:12px;color:var(--text-3);border:1px solid var(--line);border-radius:var(--radius-btn);padding:3px 11px;
}

/* ===================== 侧栏 ===================== */
.aside-stack{display:flex;flex-direction:column;gap:18px;position:sticky;top:150px;}
.aside-card{
  padding:26px 24px;border-radius:var(--radius-card);
  background:linear-gradient(160deg,rgba(43,227,200,.12),rgba(122,92,255,.12)),rgba(255,255,255,.04);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.14);
  box-shadow:var(--shadow-dark);
}
.aside-card h3{font-size:18px;margin-bottom:10px;}
.aside-card p{font-size:14px;color:var(--text-2);line-height:1.75;margin-bottom:18px;}
.aside-note{font-size:12.5px;color:var(--text-3);margin:12px 0 0;}
.aside-list{border:1px solid var(--line);border-radius:var(--radius-card);background:var(--panel);padding:20px 22px;}
.aside-list h3{font-size:15px;margin-bottom:14px;color:var(--text);}
.aside-list li{
  display:flex;justify-content:space-between;gap:12px;
  font-size:13.5px;color:var(--text-2);padding:9px 0;border-bottom:1px solid var(--line);
}
.aside-list li:last-child{border-bottom:none;padding-bottom:0;}
.aside-list b{color:var(--primary);font-weight:600;font-variant-numeric:tabular-nums;}

/* ===================== 分页位 ===================== */
.pager{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:44px;}
.pager-item{
  min-width:40px;height:40px;padding:0 12px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);color:var(--text-2);font-size:14px;
  font-variant-numeric:tabular-nums;background:rgba(255,255,255,.03);
  transition:all .18s var(--ease);
}
.pager-item.is-current{
  background:rgba(43,227,200,.13);border-color:rgba(43,227,200,.45);color:var(--primary);font-weight:700;
}
.pager-item.is-disabled{color:var(--text-3);opacity:.5;}
.pager-meta{text-align:center;font-size:13px;color:var(--text-3);margin-top:14px;}

/* ===================== 浅底数据条 ===================== */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-light);border:1px solid var(--line-light);border-radius:var(--radius-card);overflow:hidden;margin-bottom:56px;}
.metric{background:#fff;padding:32px 26px;}
.metric b{display:block;font-size:clamp(28px,3.4vw,40px);font-weight:800;color:var(--light-text);line-height:1.15;font-variant-numeric:tabular-nums;}
.metric b em{font-style:normal;color:var(--primary-press);font-size:18px;margin-left:4px;font-weight:700;}
.metric span{display:block;margin-top:8px;font-size:13.5px;color:var(--light-text-2);}
.quote-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.quote{
  background:#fff;border:1px solid var(--line-light);border-radius:var(--radius-card);
  padding:26px 26px 24px;box-shadow:var(--shadow-light);
}
.quote p{font-size:15px;line-height:1.8;color:var(--light-text);margin-bottom:16px;}
.quote footer{font-size:13px;color:var(--light-text-2);}
.quote footer b{color:var(--light-text);font-weight:600;}

/* ===================== 交付清单 ===================== */
.check-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:22px;margin-top:12px;}
.check-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 26px;position:relative;overflow:hidden;
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.check-card:hover{border-color:rgba(43,227,200,.28);transform:translateY(-2px);}
.check-card.is-feature{background:linear-gradient(155deg,rgba(43,227,200,.1),rgba(122,92,255,.08)),var(--panel);border-color:rgba(43,227,200,.24);}
.check-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;margin-bottom:18px;
  background:rgba(43,227,200,.1);border:1px solid rgba(43,227,200,.28);
  color:var(--primary);font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
}
.check-card h3{font-size:18px;margin-bottom:10px;}
.check-card p{font-size:14.5px;color:var(--text-2);line-height:1.78;margin:0;}

/* ===================== FAQ ===================== */
.faq-wrap{max-width:880px;margin:0 auto;}
.accordion{background:transparent;border:none;margin:0;}
.accordion-item{
  background:var(--panel);border:1px solid var(--line);border-radius:16px;
  margin-bottom:12px;overflow:hidden;transition:border-color .2s var(--ease);
}
.accordion-item:hover{border-color:rgba(43,227,200,.26);}
.accordion-title{
  position:relative;display:block;padding:19px 58px 19px 22px;
  background:transparent;border:none;color:var(--text);
  font-size:16.5px;font-weight:600;line-height:1.6;
}
.accordion-title::before{display:none;}
.accordion-title::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--primary);line-height:1;transition:transform .2s var(--ease);
}
.accordion-title[aria-expanded="true"]{color:var(--primary);}
.accordion-title[aria-expanded="true"]::after{content:"−";}
.accordion-content{
  display:block;padding:0 22px 20px;background:transparent;border:none;
  color:var(--text-2);font-size:15px;line-height:1.8;
}
.accordion-content p{margin:0;}

/* ===================== CTA 与表单 ===================== */
.cta-card{
  padding:46px 44px;border-radius:24px;
  background:linear-gradient(140deg,rgba(43,227,200,.14),rgba(122,92,255,.14)),rgba(255,255,255,.045);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.14);
  box-shadow:var(--shadow-dark);
}
.cta-copy h2{margin-bottom:14px;}
.cta-copy p{color:var(--text-2);font-size:15.5px;margin:0;}
.cta-actions{display:flex;flex-direction:column;gap:10px;}
.assess-form{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px;}
.assess-form .field-full{grid-column:1 / -1;}
.assess-form label{display:block;font-size:12.5px;color:var(--text-3);margin-bottom:6px;}
.assess-form input,.assess-form textarea{
  width:100%;padding:12px 14px;border-radius:var(--radius-input);
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
  color:var(--text);transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.assess-form input::placeholder,.assess-form textarea::placeholder{color:var(--text-3);}
.assess-form input:focus,.assess-form textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(43,227,200,.18);
}
.assess-form textarea{resize:vertical;min-height:96px;}
.form-note{font-size:12.5px;color:var(--text-3);margin:12px 0 0;}

/* ===================== 页脚 ===================== */
.site-footer{
  background:#05090F;border-top:1px solid var(--line);padding:72px 0 28px;color:var(--text-2);
}
.footer-grid{margin-bottom:46px;}
.footer-brand p{font-size:14px;color:var(--text-3);margin:18px 0 0;max-width:340px;line-height:1.8;}
.footer-col h3{font-size:14px;color:var(--text);margin-bottom:18px;letter-spacing:.04em;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul a{font-size:14px;color:var(--text-2);}
.footer-col ul a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}
.footer-contact li{font-size:13.5px;color:var(--text-3);margin-bottom:12px;line-height:1.7;}
.footer-contact b{display:block;color:var(--text-2);font-weight:600;font-size:13px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding-top:24px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);
}
.footer-bottom p{margin:0;}
.site-footer .brand{margin-bottom:4px;}

/* ===================== 响应式 ===================== */
@media (max-width:1023px){
  .nav-toggle{display:block;}
  .status-pill,.countdown-pill,.header-actions .btn{display:none;}
  .main-nav{
    position:fixed;left:0;right:0;top:60px;margin:0;
    background:rgba(8,13,23,.97);
    -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);
    padding:16px 20px 26px;
    transform:translateY(-10px);opacity:0;visibility:hidden;
    transition:transform .22s var(--ease),opacity .22s var(--ease),visibility .22s var(--ease);
    max-height:calc(100vh - 60px);overflow-y:auto;
  }
  .main-nav.is-open{transform:none;opacity:1;visibility:visible;}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:4px;}
  .main-nav a{padding:13px 14px;border-radius:12px;font-size:15.5px;}
  .main-nav a.is-active{background:rgba(43,227,200,.1);color:var(--primary);}
  .main-nav a.is-active::after{display:none;}
  .aside-stack{position:static;margin-top:34px;}
  .check-grid{grid-template-columns:1fr 1fr;}
  .metric-grid{grid-template-columns:1fr 1fr;}
  .section{padding:72px 0;}
  .cta-card{padding:36px 30px;}
}
@media (max-width:767px){
  .page-hero{padding:118px 0 60px;}
  .hero-grid{gap:30px;}
  .hero-card{flex:1 1 100%;}
  .filter-bar{position:static;}
  .quote-grid{grid-template-columns:1fr;}
  .check-grid{grid-template-columns:1fr;}
  .assess-form{grid-template-columns:1fr;}
  .hero-stats{gap:24px;}
  .section{padding:56px 0;}
  .cta-card{padding:28px 22px;}
  .footer-grid{margin-bottom:32px;}
}
@media (max-width:520px){
  .metric-grid{grid-template-columns:1fr;}
  .metric{padding:24px 20px;}
  .hero-actions .btn{width:100%;}
  .brand-text{font-size:15px;}
  .brand-text small{letter-spacing:.16em;}
}
@media (min-width:1440px){
  :root{--container:1280px;}
}

/* roulang page: category4 */
:root{
  --bg:#070C16;
  --bg-soft:#0A1120;
  --panel:#0E1626;
  --panel-2:#121D30;
  --light:#F5F8FC;
  --light-text:#0F1B2B;
  --light-text-2:#4A5C70;
  --light-line:#E1E8F0;
  --primary:#2BE3C8;
  --primary-hover:#57F0DA;
  --primary-press:#1FBFA9;
  --violet:#7A5CFF;
  --amber:#FFB547;
  --text:#E9F1FA;
  --text-2:#9FB3C8;
  --text-3:#6B819B;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --pill:999px;
  --shadow-card:0 12px 32px rgba(0,0,0,.5);
  --shadow-light:0 10px 30px rgba(16,32,56,.08);
  --shadow-cta:0 8px 24px rgba(43,227,200,.28);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::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;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--primary-hover)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--text);line-height:1.3}
p{margin:0}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:50;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .25s ease-out,backdrop-filter .25s ease-out,border-color .25s ease-out;
}
.site-header.is-scrolled{
  background:rgba(9,15,26,.74);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;gap:22px;height:72px;transition:height .25s ease-out}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--text);flex:0 0 auto}
.brand:hover{color:var(--text)}
.brand-mark{
  width:34px;height:34px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--primary),var(--violet));
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(43,227,200,.22);
}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;font-size:16px;font-weight:800;letter-spacing:-.01em;line-height:1.15}
.brand-text small{font-size:10px;font-weight:600;letter-spacing:.14em;color:var(--text-3);margin-top:3px}
.main-nav{margin-left:auto}
.main-nav ul{display:flex;align-items:center;gap:4px}
.main-nav a{
  display:inline-block;padding:8px 12px;border-radius:var(--pill);
  color:var(--text-2);font-size:14px;position:relative;white-space:nowrap;
}
.main-nav a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.main-nav a.is-active{color:var(--text);background:rgba(43,227,200,.1)}
.main-nav a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:var(--primary);
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.status-pill,.countdown-pill{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 12px;
  border-radius:var(--pill);font-size:12px;letter-spacing:.02em;white-space:nowrap;
  border:1px solid var(--line-strong);color:var(--text-2);background:rgba(255,255,255,.03);
}
.status-pill i{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 3px rgba(43,227,200,.18)}
.countdown-pill{color:var(--amber);border-color:rgba(255,181,71,.3);background:rgba(255,181,71,.08)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;cursor:pointer;font-family:inherit;
  border-radius:var(--pill);font-weight:600;text-align:center;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-md{height:48px;padding:0 26px;font-size:15px}
.btn-lg{height:54px;padding:0 32px;font-size:16px}
.btn-primary{
  color:#04231E;background:linear-gradient(135deg,var(--primary),var(--violet));
  box-shadow:var(--shadow-cta);
}
.btn-primary:hover{color:#04231E;transform:translateY(-1px);box-shadow:0 12px 30px rgba(43,227,200,.4)}
.btn-primary:active{transform:translateY(0);background:linear-gradient(135deg,var(--primary-press),var(--violet))}
.btn-ghost{
  color:var(--text);background:rgba(255,255,255,.05);border-color:var(--line-strong);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{color:var(--text);border-color:rgba(43,227,200,.5);background:rgba(43,227,200,.08);transform:translateY(-1px)}
.link-more{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14px}
.link-more::after{content:"→";transition:transform .18s ease-out}
.link-more:hover::after{transform:translateX(4px)}
.nav-toggle{
  display:none;width:42px;height:38px;border-radius:var(--pill);
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;position:relative;z-index:70;
}
.nav-toggle span{display:block;width:16px;height:2px;border-radius:2px;background:var(--text);transition:transform .2s ease-out,opacity .2s ease-out}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;padding:152px 0 76px;overflow:hidden;
  background-image:linear-gradient(180deg,rgba(7,12,22,.72) 0%,rgba(7,12,22,.92) 62%,var(--bg) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
}
.page-hero .container{position:relative;z-index:2}
.crumb{margin-bottom:22px;font-size:13px;color:var(--text-3)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li{display:inline-flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--text-3)}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--primary)}
.crumb [aria-current="page"]{color:var(--text-2)}
.hero-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:56px;align-items:start}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;margin-bottom:20px;
  border-radius:var(--pill);border:1px solid rgba(43,227,200,.32);background:rgba(43,227,200,.08);
  color:var(--primary);font-size:12px;letter-spacing:.06em;
}
.page-hero h1{font-size:clamp(30px,4.4vw,52px);margin-bottom:18px}
.page-hero .lead{font-size:17px;color:var(--text-2);max-width:620px;line-height:1.85}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-meta{display:flex;flex-wrap:wrap;gap:26px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.hero-meta div{min-width:110px}
.hero-meta b{display:block;font-size:24px;color:var(--text);font-family:var(--mono);font-weight:700}
.hero-meta span{font-size:13px;color:var(--text-3)}
.glass-card{
  background:rgba(255,255,255,.055);border:1px solid var(--line-strong);
  border-radius:var(--radius-lg);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);padding:26px;
}
.glass-card h2{font-size:17px;margin-bottom:6px}
.glass-card .sub{font-size:13px;color:var(--text-3);margin-bottom:18px}
.sla-list li{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:13px 0;border-top:1px solid var(--line);font-size:14px;color:var(--text-2)}
.sla-list li:first-child{border-top:0;padding-top:0}
.sla-list b{font-family:var(--mono);color:var(--primary);font-size:15px;font-weight:700}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--pill);font-size:12px;letter-spacing:.02em;border:1px solid var(--line-strong);color:var(--text-2)}
.tag-amber{color:var(--amber);border-color:rgba(255,181,71,.34);background:rgba(255,181,71,.08)}
.tag-cyan{color:var(--primary);border-color:rgba(43,227,200,.34);background:rgba(43,227,200,.08)}

/* ---------- metrics ---------- */
.metrics{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-soft)}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.metric{padding:38px 26px;border-left:1px solid var(--line)}
.metric:first-child{border-left:0}
.metric b{display:block;font-size:clamp(26px,3vw,34px);font-family:var(--mono);font-weight:700;color:var(--primary);letter-spacing:-.02em}
.metric h3{font-size:15px;margin:10px 0 6px;font-weight:600}
.metric p{font-size:13px;color:var(--text-3);line-height:1.7}

/* ---------- doc layout ---------- */
.section{padding:96px 0}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:14px}
.section-head p{color:var(--text-2)}
.doc-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:56px;align-items:start}
.toc{position:sticky;top:96px;padding:22px;border:1px solid var(--line);border-radius:var(--radius-lg);background:rgba(255,255,255,.035)}
.toc h2{font-size:13px;letter-spacing:.08em;color:var(--text-3);margin-bottom:14px;font-weight:600}
.toc ol li+li{margin-top:2px}
.toc a{
  display:flex;gap:10px;padding:9px 10px;border-radius:var(--radius-sm);
  color:var(--text-2);font-size:14px;border-left:2px solid transparent;
}
.toc a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.toc a.is-current{color:var(--primary);background:rgba(43,227,200,.09);border-left-color:var(--primary)}
.toc a i{font-family:var(--mono);font-style:normal;font-size:12px;color:var(--text-3);padding-top:3px}
.toc a.is-current i{color:var(--primary)}
.toc-cta{margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.toc-cta p{font-size:13px;color:var(--text-3);margin-bottom:12px;line-height:1.7}

.doc-body{display:block}
.doc-block{padding-bottom:44px;margin-bottom:44px;border-bottom:1px solid var(--line)}
.doc-block:last-of-type{border-bottom:0;margin-bottom:0;padding-bottom:0}
.block-index{
  display:inline-flex;align-items:center;justify-content:center;min-width:38px;height:26px;padding:0 10px;
  border-radius:var(--pill);background:rgba(43,227,200,.1);border:1px solid rgba(43,227,200,.3);
  color:var(--primary);font-family:var(--mono);font-size:12px;margin-bottom:16px;
}
.doc-block h2{font-size:clamp(22px,2.3vw,28px);margin-bottom:14px}
.doc-block p{color:var(--text-2);margin-bottom:14px}
.doc-block p:last-child{margin-bottom:0}
.doc-list{margin-top:18px;display:grid;gap:10px}
.doc-list li{
  display:flex;gap:12px;padding:14px 16px;border:1px solid var(--line);border-radius:var(--radius-md);
  background:rgba(255,255,255,.03);font-size:14.5px;color:var(--text-2);
}
.doc-list li b{color:var(--text);font-weight:600;flex:0 0 auto}
.doc-list li span{color:var(--text-2)}
.doc-figure{margin:22px 0 0;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line)}
.doc-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.doc-figure figcaption{padding:12px 18px;font-size:13px;color:var(--text-3);background:var(--panel)}
.inline-cta{
  margin:34px 0;padding:26px;border-radius:var(--radius-lg);
  background:rgba(255,255,255,.055);border:1px solid var(--line-strong);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;
}
.inline-cta h3{font-size:18px;margin-bottom:6px}
.inline-cta p{font-size:14px;color:var(--text-2);max-width:520px}
.inline-cta .actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- faq ---------- */
.faq-section{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.faq-accordion{max-width:920px;margin:0 auto;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--panel);overflow:hidden;box-shadow:var(--shadow-card)}
.faq-accordion .accordion-item{border-bottom:1px solid var(--line);background:transparent}
.faq-accordion .accordion-item:last-child{border-bottom:0}
.faq-accordion .accordion-title{
  position:relative;padding:22px 56px 22px 26px;font-size:16.5px;font-weight:600;color:var(--text);
  background:transparent;border:0;line-height:1.6;transition:color .18s ease-out,background .18s ease-out;
}
.faq-accordion .accordion-title::before{content:"" !important;display:none !important;}
.faq-accordion .accordion-title::after{
  content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);
  color:var(--primary);font-size:22px;font-weight:400;line-height:1;transition:transform .2s ease-out;
}
.faq-accordion .accordion-item.is-active .accordion-title{color:var(--primary);background:rgba(43,227,200,.05)}
.faq-accordion .accordion-item.is-active .accordion-title::after{content:"–";}
.faq-accordion .accordion-content{
  padding:0 26px 22px;background:transparent;border:0;color:var(--text-2);font-size:15px;line-height:1.85;
}
.faq-accordion .accordion-content p{margin:0}

/* ---------- final cta ---------- */
.final-cta{padding:96px 0}
.cta-panel{
  position:relative;overflow:hidden;padding:52px;border-radius:var(--radius-lg);
  background:linear-gradient(135deg,rgba(43,227,200,.12),rgba(122,92,255,.14));
  border:1px solid var(--line-strong);box-shadow:var(--shadow-card);
  display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:center;
}
.cta-panel::after{
  content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,227,200,.28),transparent 70%);pointer-events:none;
}
.cta-panel h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:14px}
.cta-panel p{color:var(--text-2);max-width:560px}
.cta-panel .actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.cta-facts{position:relative;z-index:2;display:grid;gap:12px}
.cta-facts div{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:14px 18px;border-radius:var(--radius-md);border:1px solid var(--line-strong);
  background:rgba(9,15,26,.45);font-size:14px;color:var(--text-2);
}
.cta-facts b{color:var(--primary);font-family:var(--mono)}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);padding:72px 0 28px}
.footer-grid{padding-bottom:44px}
.footer-brand p{color:var(--text-3);font-size:14px;margin-top:18px;max-width:340px;line-height:1.8}
.footer-col h3{font-size:14px;letter-spacing:.04em;margin-bottom:18px;color:var(--text)}
.footer-col ul{display:grid;gap:11px}
.footer-col a{color:var(--text-2);font-size:14px;position:relative}
.footer-col a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:1px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out}
.footer-col a:hover{color:var(--primary)}
.footer-col a:hover::after{transform:scaleX(1)}
.footer-contact li{color:var(--text-3);font-size:14px;line-height:1.8}
.footer-contact b{color:var(--text-2);font-weight:600;margin-right:6px}
.footer-bottom{
  border-top:1px solid var(--line);padding-top:24px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .hero-grid{gap:36px;grid-template-columns:1.3fr 1fr}
  .doc-layout{grid-template-columns:220px minmax(0,1fr);gap:36px}
}
@media (max-width:1023px){
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);z-index:60;
    background:rgba(9,15,26,.96);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    border-left:1px solid var(--line);padding:104px 24px 36px;overflow-y:auto;
    transform:translateX(102%);transition:transform .28s ease-out;
  }
  .main-nav.is-open{transform:translateX(0)}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:4px}
  .main-nav a{padding:13px 14px;border-radius:var(--radius-sm);font-size:15px}
  .main-nav a.is-active::after{left:14px;right:auto;width:18px;bottom:8px}
  .nav-toggle{display:flex}
  .status-pill,.countdown-pill{display:none}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .metric{border-left:1px solid var(--line);padding:28px 20px}
  .metric:nth-child(odd){border-left:0}
  .metric:nth-child(n+3){border-top:1px solid var(--line)}
  .doc-layout{grid-template-columns:1fr;gap:32px}
  .toc{position:static;display:block}
  .cta-panel{grid-template-columns:1fr;padding:38px}
  .section{padding:72px 0}
}
@media (max-width:640px){
  .container{padding:0 18px}
  .page-hero{padding:126px 0 56px}
  .hero-meta{gap:18px}
  .hero-meta div{min-width:86px}
  .hero-meta b{font-size:20px}
  .btn-lg{height:50px;padding:0 22px;font-size:15px}
  .section{padding:56px 0}
  .metrics-grid{grid-template-columns:1fr}
  .metric{border-left:0 !important;border-top:1px solid var(--line)}
  .metric:first-child{border-top:0}
  .doc-block{padding-bottom:32px;margin-bottom:32px}
  .inline-cta{padding:22px}
  .final-cta{padding:56px 0}
  .cta-panel{padding:28px}
  .faq-accordion .accordion-title{padding:18px 48px 18px 20px;font-size:15.5px}
  .faq-accordion .accordion-content{padding:0 20px 20px}
  .site-footer{padding:56px 0 24px}
  .footer-bottom{flex-direction:column}
}