/* roulang page: index */
:root{
  --ink-950:#05080F; --ink-900:#080D18; --ink-800:#0C1424; --ink-700:#121D31;
  --line:rgba(126,178,255,.14); --line-strong:rgba(126,178,255,.28);
  --teal-400:#35E0D0; --teal-600:#1B9E96; --cyan-500:#22B8E6; --amber-400:#FFB35C;
  --text-hi:#EAF2FF; --text-mid:#A7B7CE; --text-low:#6E8199;
  --radius-card:18px; --radius-img:14px; --radius-badge:8px;
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Inter",ui-monospace,SFMono-Regular,monospace;
  --shadow-card:0 1px 0 rgba(255,255,255,.06) inset, 0 24px 60px -28px rgba(0,0,0,.9), 0 0 0 1px var(--line);
  --glass:linear-gradient(180deg,rgba(18,29,49,.86),rgba(10,17,32,.92));
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  color:var(--text-mid);
  background-color:var(--ink-950);
  background-image:
    radial-gradient(820px 460px at 10% -8%, rgba(53,224,208,.10), transparent 62%),
    radial-gradient(700px 380px at 94% 2%, rgba(34,184,230,.09), transparent 60%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;color:var(--text-hi);font-family:var(--font-cn);line-height:1.3;}
p{margin:0;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;}
img{display:block;max-width:100%;height:auto;}
button{font-family:inherit;cursor:pointer;}
::selection{background:rgba(53,224,208,.28);color:#fff;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1;}
@media (max-width:640px){.container{padding:0 16px;}}

/* ---------- 导航 ---------- */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:60;}
.nav-shell{
  position:relative;display:flex;align-items:center;gap:16px;
  padding:10px 14px;border-radius:18px;
  background:rgba(12,20,36,.82);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  box-shadow:0 24px 60px -34px rgba(0,0,0,.95);
  transition:padding .2s ease, background .2s ease, box-shadow .2s ease;
}
.site-header.is-scrolled .nav-shell{padding:6px 14px;background:rgba(8,13,24,.94);box-shadow:0 20px 50px -30px rgba(0,0,0,.98);}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:28px;height:28px;border-radius:9px;display:grid;place-items:center;color:#052A31;background:linear-gradient(140deg,var(--teal-400),var(--cyan-500));box-shadow:0 0 18px rgba(53,224,208,.35);}
.brand-text{font-size:19px;font-weight:800;letter-spacing:.02em;color:var(--text-hi);}
.brand-sub{font-size:11px;letter-spacing:.14em;color:var(--text-low);padding-left:8px;border-left:1px solid var(--line);}
.nav-chips{display:flex;align-items:center;justify-content:center;gap:8px;flex:1;}
.nav-chip{
  position:relative;display:flex;align-items:center;gap:8px;
  padding:8px 12px;border-radius:8px;color:var(--text-mid);
  transition:background .18s ease,color .18s ease;
}
.nav-chip svg{width:18px;height:18px;flex-shrink:0;transition:color .18s ease;}
.nav-chip .chip-label{font-size:14px;font-weight:600;white-space:nowrap;}
.nav-chip .chip-sub{font-size:11px;color:var(--text-low);white-space:nowrap;}
.nav-chip:hover{background:rgba(53,224,208,.08);color:var(--text-hi);}
.nav-chip:hover svg{color:var(--teal-400);}
.nav-chip:focus-visible{outline:2px solid var(--teal-400);outline-offset:2px;}
.nav-chip.is-active{background:rgba(53,224,208,.12);color:var(--text-hi);box-shadow:inset 0 -2px 0 var(--teal-400);}
.nav-chip.is-active svg{color:var(--teal-400);}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);background:rgba(5,8,15,.6);color:var(--text-hi);align-items:center;justify-content:center;}
.nav-toggle:focus-visible{outline:2px solid var(--teal-400);outline-offset:2px;}

@media (max-width:1023px){
  .nav-chips{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:10px;border-radius:16px;
    background:rgba(8,13,24,.97);
    border:1px solid var(--line);
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    box-shadow:0 30px 60px -30px #000;
    display:none;
  }
  .nav-chips.is-open{display:flex;}
  .nav-chip{padding:12px 14px;}
  .nav-chip.is-active{box-shadow:inset 2px 0 0 var(--teal-400);}
  .nav-toggle{display:inline-flex;}
  .nav-cta .btn{padding:0 16px;font-size:14px;min-height:42px;}
  .brand-sub{display:none;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1;letter-spacing:.01em;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease, filter .18s ease, color .18s ease;
}
.btn:focus-visible{outline:2px solid var(--teal-400);outline-offset:2px;}
.btn-primary{background:var(--amber-400);color:#151009;box-shadow:0 12px 30px -14px rgba(255,179,92,.8);}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 0 28px rgba(53,224,208,.35),0 14px 32px -16px rgba(255,179,92,.85);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border:1px solid var(--line-strong);color:var(--text-hi);}
.btn-ghost:hover{border-color:var(--teal-400);color:#fff;transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--cyan-500);min-height:44px;}
.btn-text span{transition:transform .18s ease;}
.btn-text:hover{color:var(--teal-400);}
.btn-text:hover span{transform:translateX(3px);}
.btn-text:focus-visible{outline:2px solid var(--teal-400);outline-offset:3px;border-radius:6px;}
@media (max-width:640px){.btn{min-height:48px;}}

/* ---------- Hero ---------- */
.hero{position:relative;padding:136px 0 88px;overflow:hidden;}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;opacity:.22;}
.hero-bg::after{content:'';position:absolute;inset:0;background:radial-gradient(820px 460px at 82% 6%, rgba(53,224,208,.18), transparent 62%),linear-gradient(180deg,rgba(5,8,15,.62) 0%,var(--ink-950) 92%);}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;color:var(--teal-400);padding:6px 12px;border-radius:999px;border:1px solid rgba(53,224,208,.28);background:rgba(53,224,208,.08);}
.eyebrow::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--teal-400);box-shadow:0 0 10px var(--teal-400);}
h1.hero-title{font-size:clamp(30px,4.4vw,52px);font-weight:800;line-height:1.18;letter-spacing:-.01em;margin:20px 0 18px;}
.hero-sub{font-size:17px;line-height:1.85;color:var(--text-mid);max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-visual{position:relative;border-radius:var(--radius-img);overflow:hidden;border:1px solid rgba(126,178,255,.16);box-shadow:0 30px 70px -34px rgba(0,0,0,.95);}
.hero-visual img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3.2;filter:saturate(108%);}
.hero-visual::after{content:'';position:absolute;inset:0;background:linear-gradient(200deg,rgba(34,184,230,.16),transparent 48%),linear-gradient(180deg,transparent 42%,rgba(5,8,15,.86));}
.hero-float{
  position:absolute;left:16px;bottom:16px;width:220px;padding:16px;border-radius:14px;z-index:2;
  background:linear-gradient(180deg,rgba(18,29,49,.9),rgba(10,17,32,.95));
  border:1px solid var(--line-strong);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  box-shadow:0 18px 40px -22px rgba(0,0,0,.95);
}
.hero-float .float-num{font-family:var(--font-num);font-size:26px;font-weight:800;color:var(--text-hi);line-height:1.2;font-variant-numeric:tabular-nums;}
.hero-float p{font-size:12px;line-height:1.7;color:var(--text-mid);margin-top:6px;}
@media (max-width:1023px){
  .hero{padding:118px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-sub{max-width:none;}
}

/* ---------- 信任条 / C 型窄条 ---------- */
.trust-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:52px;}
.stat-bar{
  display:flex;align-items:center;gap:16px;min-height:72px;padding:14px 18px;border-radius:14px;
  background:linear-gradient(180deg,rgba(18,29,49,.72),rgba(10,17,32,.9));
  border:1px solid var(--line);
  transition:border-color .18s ease,transform .18s ease;
}
.stat-bar:hover{border-color:var(--line-strong);transform:translateY(-2px);}
.stat-bar .idx{font-family:var(--font-num);font-size:12px;letter-spacing:.1em;color:var(--text-low);flex-shrink:0;}
.stat-bar .stat-title{font-size:15px;font-weight:700;color:var(--text-hi);line-height:1.4;}
.stat-bar .stat-desc{font-size:12px;line-height:1.6;color:var(--text-low);margin-top:2px;}
@media (max-width:767px){.trust-row{grid-template-columns:1fr;margin-top:36px;}}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;position:relative;z-index:1;}
@media (max-width:1023px){.section{padding:72px 0;}}
@media (max-width:640px){.section{padding:48px 0;}}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{position:relative;padding-left:16px;font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;}
.section-head h2::before{content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:18px;border-radius:2px;background:var(--teal-400);box-shadow:0 0 12px rgba(53,224,208,.65);}
.section-desc{margin-top:14px;padding-left:16px;font-size:15px;line-height:1.85;color:var(--text-mid);}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}
@media (max-width:767px){.section-head-row{align-items:flex-start;flex-direction:column;gap:8px;}}

/* ---------- 三步轨道 ---------- */
.track{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;padding-top:48px;}
.track::before{content:'';position:absolute;top:9px;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--teal-400),rgba(53,224,208,.28) 55%,transparent);}
.step-card{
  position:relative;padding:26px;border-radius:var(--radius-card);
  background:linear-gradient(180deg,rgba(18,29,49,.86),rgba(10,17,32,.92));
  border:1px solid var(--line);
  box-shadow:0 1px 0 rgba(255,255,255,.06) inset,0 24px 60px -28px rgba(0,0,0,.9);
  transition:transform .18s ease,border-color .18s ease;
}
.step-card::before{content:'';position:absolute;top:-45px;left:24px;width:12px;height:12px;border-radius:50%;background:var(--teal-400);box-shadow:0 0 0 4px rgba(53,224,208,.15),0 0 18px rgba(53,224,208,.6);}
.step-card:hover{transform:translateY(-2px);border-color:var(--line-strong);}
.step-card .step-idx{font-family:var(--font-num);font-size:13px;letter-spacing:.16em;color:var(--teal-400);font-variant-numeric:tabular-nums;}
.step-card h3{font-size:19px;font-weight:700;margin:10px 0 10px;}
.step-card p{font-size:14px;line-height:1.8;color:var(--text-mid);}
.step-card .step-link{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:13px;font-weight:600;color:var(--cyan-500);}
.step-card .step-link:hover{color:var(--teal-400);}
.step-offset{margin-top:28px;}
@media (max-width:900px){
  .track{grid-template-columns:1fr;gap:18px;padding-top:8px;padding-left:26px;}
  .track::before{top:0;bottom:0;left:5px;right:auto;width:2px;height:auto;background:linear-gradient(180deg,var(--teal-400),transparent);}
  .step-card::before{top:24px;left:-27px;width:10px;height:10px;}
  .step-offset{margin-top:0;}
}

/* ---------- 能力板块 ---------- */
.cap-grid{display:grid;grid-template-columns:1.45fr .9fr;gap:24px;align-items:start;}
.cap-main{padding:32px;border-radius:var(--radius-card);background:linear-gradient(180deg,rgba(18,29,49,.86),rgba(10,17,32,.92));border:1px solid var(--line);box-shadow:0 1px 0 rgba(255,255,255,.06) inset,0 24px 60px -28px rgba(0,0,0,.9);}
.cap-main h3{font-size:20px;font-weight:700;margin-bottom:12px;}
.cap-main .cap-lead{font-size:14.5px;line-height:1.85;color:var(--text-mid);}
.cap-main ul{list-style:none;margin:22px 0 0;display:grid;gap:14px;}
.cap-main li{position:relative;padding-left:22px;font-size:14.5px;line-height:1.8;color:var(--text-mid);}
.cap-main li::before{content:'';position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--teal-400);box-shadow:0 0 10px rgba(53,224,208,.7);}
.cap-main li strong{color:var(--text-hi);font-weight:700;}
.cap-side{display:grid;gap:14px;align-content:start;}
@media (max-width:1023px){.cap-grid{grid-template-columns:1fr;}}

/* ---------- 案例 ---------- */
.case-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;align-items:stretch;}
.case-media{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid rgba(126,178,255,.16);min-height:400px;box-shadow:0 30px 70px -34px rgba(0,0,0,.95);}
.case-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.case-media::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 38%,rgba(5,8,15,.94) 82%);}
.case-info{position:absolute;left:0;right:0;bottom:0;padding:24px;z-index:2;}
.case-info h3{font-size:20px;font-weight:700;margin:12px 0 8px;}
.case-info p{font-size:14px;line-height:1.8;color:var(--text-mid);}
.case-side{display:grid;gap:16px;align-content:start;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{font-size:12px;color:var(--text-mid);padding:6px 12px;border-radius:999px;border:1px solid var(--line);background:rgba(12,20,36,.7);transition:border-color .18s ease,color .18s ease;}
.tag:hover{border-color:var(--teal-400);color:var(--text-hi);}
@media (max-width:1023px){.case-grid{grid-template-columns:1fr;}.case-media{min-height:320px;}}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:24px;align-items:start;}
.news-feature{display:block;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);background:linear-gradient(180deg,rgba(18,29,49,.86),rgba(10,17,32,.92));transition:transform .18s ease,border-color .18s ease;}
.news-feature:hover{transform:translateY(-2px);border-color:var(--line-strong);}
.news-feature-media{position:relative;aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid var(--line);}
.news-feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-feature:hover .news-feature-media img{transform:scale(1.03);}
.news-feature-body{padding:22px;}
.news-feature-body h3{font-size:19px;font-weight:700;margin:12px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-feature-body p{font-size:14px;line-height:1.8;color:var(--text-mid);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-list{display:grid;gap:16px;align-content:start;}
.news-item{display:block;padding:18px 20px;border-radius:14px;border:1px solid var(--line);background:linear-gradient(180deg,rgba(18,29,49,.78),rgba(10,17,32,.92));transition:transform .18s ease,border-color .18s ease;}
.news-item:hover{transform:translateY(-2px);border-color:var(--line-strong);}
.news-item h4{font-size:16px;font-weight:700;margin:10px 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item p{font-size:13px;line-height:1.75;color:var(--text-mid);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.badge{display:inline-flex;align-items:center;font-size:12px;line-height:1;padding:5px 10px;border-radius:var(--radius-badge);background:rgba(53,224,208,.12);color:var(--teal-400);}
.badge-amber{background:rgba(255,179,92,.14);color:var(--amber-400);}
.meta{display:inline-block;margin-top:12px;font-size:13px;letter-spacing:.02em;color:var(--text-low);font-variant-numeric:tabular-nums;}
.empty-state{border:1px dashed var(--line-strong);border-radius:var(--radius-card);padding:52px 24px;text-align:center;background:rgba(12,20,36,.5);}
.empty-icon{width:46px;height:46px;margin:0 auto 16px;border-radius:12px;border:1px solid var(--line);display:grid;place-items:center;color:var(--teal-400);}
.empty-state p{font-size:15px;color:var(--text-mid);margin-bottom:18px;}
@media (max-width:1023px){.news-grid{grid-template-columns:1fr;}}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:40px;align-items:start;}
.faq-intro h2{position:relative;padding-left:16px;font-size:clamp(22px,2.6vw,32px);font-weight:700;}
.faq-intro h2::before{content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:18px;border-radius:2px;background:var(--teal-400);box-shadow:0 0 12px rgba(53,224,208,.65);}
.faq-intro p{margin:14px 0 18px;padding-left:16px;font-size:15px;line-height:1.85;color:var(--text-mid);}
.faq-intro .btn-text{padding-left:16px;}
.faq-item{border:1px solid var(--line);border-radius:14px;background:rgba(12,20,36,.72);margin-bottom:12px;overflow:hidden;transition:border-color .18s ease,background .18s ease,box-shadow .18s ease;}
.faq-item summary{list-style:none;display:flex;align-items:center;gap:12px;padding:16px 20px;font-size:15.5px;font-weight:600;color:var(--text-mid);transition:color .18s ease;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{content:'';width:8px;height:8px;border-radius:50%;background:rgba(126,178,255,.45);flex-shrink:0;transition:background .18s ease,box-shadow .18s ease;}
.faq-item summary:focus-visible{outline:2px solid var(--teal-400);outline-offset:-2px;}
.faq-icon{position:relative;margin-left:auto;width:16px;height:16px;flex-shrink:0;}
.faq-icon::before,.faq-icon::after{content:'';position:absolute;background:var(--teal-400);border-radius:2px;transition:transform .16s ease,opacity .16s ease;}
.faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.faq-item[open] .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-item[open]{border-color:var(--line-strong);background:rgba(18,29,49,.82);box-shadow:inset 3px 0 0 var(--teal-400);}
.faq-item[open] summary{color:var(--text-hi);}
.faq-item[open] summary::before{background:var(--teal-400);box-shadow:0 0 10px var(--teal-400);}
.faq-answer{padding:0 20px 18px 40px;font-size:15px;line-height:1.85;color:var(--text-mid);}
@media (max-width:1023px){.faq-grid{grid-template-columns:1fr;gap:24px;}}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  padding:44px;border-radius:24px;overflow:hidden;
  border:1px solid var(--line-strong);
  background:linear-gradient(180deg,rgba(18,29,49,.92),rgba(10,17,32,.96));
}
.cta-band::before{content:'';position:absolute;inset:0;background:radial-gradient(560px 260px at 16% 120%,rgba(53,224,208,.16),transparent 70%);pointer-events:none;}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{font-size:clamp(21px,2.4vw,28px);font-weight:700;}
.cta-band p{margin-top:10px;font-size:15px;line-height:1.85;color:var(--text-mid);max-width:560px;}
.cta-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
@media (max-width:767px){.cta-band{padding:28px;}}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;z-index:1;padding:8px 0 32px;}
.footer-line{height:1px;background:linear-gradient(90deg,var(--teal-400),rgba(53,224,208,.12) 45%,transparent);margin-bottom:56px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{font-size:13.5px;line-height:1.85;color:var(--text-low);max-width:300px;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text-hi);margin-bottom:14px;letter-spacing:.04em;}
.footer-col ul{list-style:none;display:grid;gap:10px;}
.footer-col li,.footer-col a{font-size:13.5px;color:var(--text-low);transition:color .18s ease;}
.footer-col a:hover{color:var(--teal-400);}
.footer-col a:focus-visible{outline:2px solid var(--teal-400);outline-offset:3px;border-radius:4px;}
.footer-bottom{margin-top:44px;padding-top:20px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--text-low);}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px;}}
@media (max-width:640px){.footer-grid{grid-template-columns:1fr;}.footer-line{margin-bottom:36px;}}

/* roulang page: article */
:root{
  --ink-950:#05080F;
  --ink-900:#080D18;
  --ink-800:#0C1424;
  --ink-700:#121D31;
  --line:rgba(126,178,255,.14);
  --line-strong:rgba(126,178,255,.28);
  --teal-400:#35E0D0;
  --teal-600:#1B9E96;
  --cyan-500:#22B8E6;
  --amber-400:#FFB35C;
  --text-hi:#EAF2FF;
  --text-mid:#A7B7CE;
  --text-low:#6E8199;
  --radius-card:18px;
  --radius-img:14px;
  --radius-badge:8px;
  --shadow-glass:0 1px 0 rgba(255,255,255,.06) inset,0 24px 60px -28px rgba(0,0,0,.9),0 0 0 1px var(--line);
  --shadow-soft:0 18px 44px -30px rgba(0,0,0,.95);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Inter",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
html body{
  margin:0;
  padding:0;
  font-family:var(--font-cn);
  font-size:16px;
  font-weight:400;
  line-height:1.8;
  color:var(--text-mid);
  background:
    radial-gradient(1000px 520px at 88% -8%,rgba(34,184,230,.12),transparent 62%),
    radial-gradient(760px 420px at 6% 4%,rgba(53,224,208,.08),transparent 60%),
    var(--ink-950);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;border-radius:var(--radius-img);object-fit:cover;}
a{color:var(--cyan-500);text-decoration:none;transition:color .18s ease,border-color .18s ease,background .18s ease;}
a:hover{color:var(--teal-400);}
button{font-family:inherit;}
ul,ol{list-style:revert;}
h1,h2,h3,h4{margin:0;color:var(--text-hi);font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
::selection{background:rgba(53,224,208,.28);color:#fff;}
:focus-visible{outline:2px solid var(--teal-400);outline-offset:2px;border-radius:6px;}

.container{max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:80;padding-top:16px;}
.nav-shell{
  position:relative;
  display:flex;
  align-items:center;
  gap:18px;
  padding:10px 14px;
  border-radius:18px;
  border:1px solid var(--line);
  background:rgba(12,20,36,.82);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:0 1px 0 rgba(255,255,255,.05) inset,0 22px 50px -34px rgba(0,0,0,.95);
  transition:padding .22s ease,background .22s ease,border-color .22s ease;
}
.site-header.is-scrolled .nav-shell{padding:5px 14px;background:rgba(8,13,24,.95);border-color:var(--line-strong);}
.brand{display:inline-flex;align-items:center;gap:9px;flex:0 0 auto;}
.brand-mark{
  width:28px;height:28px;border-radius:9px;
  display:grid;place-items:center;
  color:var(--teal-400);
  background:linear-gradient(140deg,rgba(53,224,208,.24),rgba(34,184,230,.1));
  border:1px solid var(--line-strong);
  box-shadow:0 0 16px rgba(53,224,208,.18);
}
.brand-text{font-family:var(--font-num);font-size:18px;font-weight:700;letter-spacing:.02em;color:var(--text-hi);}
.brand-sub{font-size:11px;color:var(--text-low);padding-left:9px;border-left:1px solid var(--line);letter-spacing:.04em;white-space:nowrap;}
.nav-chips{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-chip{
  display:flex;flex-direction:column;gap:1px;
  padding:8px 12px;border-radius:8px;
  border:1px solid transparent;
  color:var(--text-mid);
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.nav-chip svg{width:18px;height:18px;color:var(--text-low);transition:color .18s ease;}
.chip-label{font-size:13px;font-weight:600;color:inherit;line-height:1.4;}
.chip-sub{font-size:11px;color:var(--text-low);line-height:1.3;letter-spacing:.02em;}
.nav-chip:hover{background:rgba(53,224,208,.08);color:var(--text-hi);}
.nav-chip:hover svg{color:var(--teal-400);}
.nav-chip.is-active{background:rgba(53,224,208,.12);color:var(--text-hi);box-shadow:inset 0 -2px 0 var(--teal-400);}
.nav-chip.is-active svg{color:var(--teal-400);}
.nav-cta{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line-strong);
  background:rgba(18,29,49,.7);color:var(--text-hi);
  cursor:pointer;transition:border-color .18s ease,color .18s ease;
}
.nav-toggle:hover{border-color:var(--teal-400);color:var(--teal-400);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:999px;
  font-size:14px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{
  background:linear-gradient(96deg,var(--amber-400),#FFD08A);
  color:#1B1205;
  box-shadow:0 0 0 1px rgba(255,179,92,.42),0 14px 34px -18px rgba(255,179,92,.85);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 28px rgba(255,179,92,.38),0 0 0 1px rgba(255,179,92,.6);color:#1B1205;}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;border-color:var(--line-strong);color:var(--text-hi);
}
.btn-ghost:hover{border-color:var(--teal-400);color:var(--teal-400);transform:translateY(-1px);}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--teal-400);
  border-bottom:1px solid transparent;padding-bottom:2px;
}
.btn-link span{transition:transform .18s ease;}
.btn-link:hover{color:var(--text-hi);}
.btn-link:hover span{transform:translateX(3px);}

/* ============ 文章页头 ============ */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.02em;color:var(--text-low);
  padding:26px 0 0;
}
.crumb a{color:var(--text-low);}
.crumb a:hover{color:var(--teal-400);}
.crumb-sep{color:rgba(110,129,153,.6);}
.crumb-current{color:var(--text-mid);max-width:min(520px,64vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.article-hero{position:relative;padding:18px 0 40px;overflow:hidden;}
.article-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:url('/assets/images/backpic/back-2.png') center right/cover no-repeat;
  opacity:.16;
  -webkit-mask-image:radial-gradient(760px 360px at 82% 0%,#000 0%,transparent 76%);
  mask-image:radial-gradient(760px 360px at 82% 0%,#000 0%,transparent 76%);
}
.article-head{position:relative;max-width:860px;padding-top:22px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:8px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(53,224,208,.12);color:var(--teal-400);
  border:1px solid rgba(53,224,208,.22);
}
.badge-amber{background:rgba(255,179,92,.14);color:var(--amber-400);border-color:rgba(255,179,92,.28);}
.article-title{
  margin-top:16px;
  font-size:clamp(30px,4.4vw,52px);
  font-weight:800;line-height:1.18;letter-spacing:-.01em;
  color:var(--text-hi);
  overflow-wrap:anywhere;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:22px;
  font-size:13px;letter-spacing:.02em;color:var(--text-low);
  font-variant-numeric:tabular-nums;
}
.meta-item{display:inline-flex;align-items:center;gap:6px;}
.meta-item svg{width:15px;height:15px;color:var(--teal-600);}
.meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(110,129,153,.55);}
.article-rule{margin-top:28px;height:1px;background:linear-gradient(90deg,rgba(53,224,208,.5),rgba(53,224,208,0));}

/* ============ 正文 ============ */
.article-main{padding:8px 0 24px;}
.article-wrap{max-width:760px;margin:0 auto;}
.article-body{
  font-size:17px;line-height:1.9;color:var(--text-mid);
  overflow-wrap:break-word;
}
.article-body > * + *{margin-top:1.1em;}
.article-body > :first-child{margin-top:0;}
.article-body h2{
  display:flex;align-items:center;gap:12px;
  margin-top:2em;margin-bottom:.2em;
  font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.35;color:var(--text-hi);
}
.article-body h2::before{
  content:"";flex:0 0 auto;width:4px;height:18px;border-radius:3px;
  background:var(--teal-400);box-shadow:0 0 14px rgba(53,224,208,.55);
}
.article-body h3{
  margin-top:1.7em;margin-bottom:.1em;
  font-size:19px;font-weight:700;line-height:1.5;color:var(--text-hi);
}
.article-body h4{margin-top:1.4em;font-size:17px;font-weight:700;color:var(--text-hi);}
.article-body p{margin:0;}
.article-body strong{color:var(--text-hi);font-weight:700;}
.article-body a{color:var(--cyan-500);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.article-body a:hover{color:var(--teal-400);}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:.42em 0;padding-left:.2em;}
.article-body li::marker{color:var(--teal-400);}
.article-body blockquote{
  margin:1.5em 0;
  padding:16px 22px;
  border-left:3px solid var(--teal-400);
  border-radius:0 12px 12px 0;
  background:rgba(53,224,208,.05);
  color:var(--text-mid);
}
.article-body blockquote p{margin:0;}
.article-body blockquote p + p{margin-top:.8em;}
.article-body figure{margin:1.6em 0;}
.article-body figure img{margin:0 auto;}
.article-body figcaption{
  margin-top:10px;text-align:center;
  font-size:13px;letter-spacing:.02em;color:var(--text-low);
}
.article-body img{
  border-radius:12px;
  border:1px solid rgba(126,178,255,.16);
  margin:1.4em auto;
}
.article-body table{
  width:100%;border-collapse:collapse;
  font-size:15px;line-height:1.75;
  border:1px solid var(--line);
  border-radius:12px;overflow:hidden;
}
.article-body th{
  background:var(--ink-700);color:var(--text-hi);
  font-weight:600;text-align:left;
  padding:11px 14px;border-bottom:1px solid var(--line-strong);
  white-space:nowrap;
}
.article-body td{
  padding:11px 14px;
  border-bottom:1px solid var(--line);
  color:var(--text-mid);
}
.article-body tr:last-child td{border-bottom:0;}
.article-body code{
  font-family:var(--font-num);font-size:14px;
  padding:2px 6px;border-radius:6px;
  background:rgba(5,8,15,.7);
  border:1px solid var(--line);
  color:var(--teal-400);
}
.article-body pre{
  margin:1.5em 0;padding:18px 20px;
  border-radius:12px;overflow-x:auto;
  background:rgba(5,8,15,.75);
  border:1px solid var(--line);
}
.article-body pre code{padding:0;border:0;background:none;color:var(--text-mid);font-size:14px;line-height:1.75;}
.article-body hr{border:0;height:1px;background:var(--line);margin:2em 0;}

.article-empty{
  display:flex;flex-direction:column;align-items:center;gap:18px;
  padding:52px 24px;text-align:center;
  border:1px dashed var(--line-strong);
  border-radius:var(--radius-card);
  background:rgba(12,20,36,.6);
}
.article-empty p{font-size:15px;color:var(--text-mid);}

.article-return{
  display:flex;justify-content:flex-end;
  max-width:760px;margin:36px auto 0;
  padding-top:22px;border-top:1px solid var(--line);
}

/* ============ 板块通用 ============ */
.section{padding:72px 0;}
.section-head{max-width:640px;margin-bottom:34px;}
.section-title{
  position:relative;padding-left:16px;
  font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;color:var(--text-hi);
}
.section-title::before{
  content:"";position:absolute;left:0;top:.28em;
  width:4px;height:18px;border-radius:3px;background:var(--teal-400);
  box-shadow:0 0 14px rgba(53,224,208,.5);
}
.section-sub{margin-top:12px;font-size:14px;color:var(--text-low);line-height:1.8;}

/* ============ 继续了解卡片 ============ */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.info-card{
  display:flex;flex-direction:column;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(18,29,49,.86),rgba(10,17,32,.92));
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-glass);
  overflow:hidden;
  color:var(--text-mid);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.info-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:0 1px 0 rgba(255,255,255,.07) inset,0 30px 60px -30px rgba(0,0,0,.95),0 0 0 1px var(--line-strong);color:var(--text-mid);}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid rgba(126,178,255,.16);}
.card-media img{width:100%;height:100%;border-radius:0;transition:transform .5s ease;}
.info-card:hover .card-media img{transform:scale(1.04);}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,0) 46%,rgba(5,8,15,.72));
  pointer-events:none;
}
.card-body{display:flex;flex-direction:column;gap:10px;padding:22px;}
.card-body h3{font-size:18px;font-weight:700;color:var(--text-hi);line-height:1.45;}
.card-body p{font-size:14px;line-height:1.8;color:var(--text-low);}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  padding:38px 36px;border-radius:22px;
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(18,29,49,.9),rgba(10,17,32,.94));
  box-shadow:var(--shadow-glass);
}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,224,208,.16),transparent 68%);
  pointer-events:none;
}
.cta-title{position:relative;font-size:clamp(22px,2.6vw,30px);font-weight:700;color:var(--text-hi);line-height:1.3;}
.cta-sub{position:relative;margin-top:12px;max-width:520px;font-size:14px;line-height:1.85;color:var(--text-low);}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:16px;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:40px;padding:56px 0 30px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,13,24,.55),var(--ink-950));
}
.footer-line{height:1px;background:linear-gradient(90deg,var(--teal-400),rgba(53,224,208,0));margin-bottom:42px;}
.footer-grid{display:grid;grid-template-columns:1.5fr .8fr 1fr .95fr;gap:32px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;line-height:1.9;color:var(--text-low);max-width:330px;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text-hi);margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:11px;}
.footer-col li,.footer-col a{font-size:13.5px;line-height:1.7;color:var(--text-low);}
.footer-col a:hover{color:var(--teal-400);}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:42px;padding-top:20px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-low);letter-spacing:.02em;
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-toggle{display:inline-flex;}
  .nav-shell{flex-wrap:wrap;}
  .nav-chips{
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    display:none;flex-direction:column;align-items:stretch;gap:6px;
    margin-left:0;padding:12px;
    border-radius:16px;
    border:1px solid var(--line-strong);
    background:rgba(10,17,32,.97);
    backdrop-filter:blur(18px) saturate(120%);
    -webkit-backdrop-filter:blur(18px) saturate(120%);
    box-shadow:0 30px 60px -30px rgba(0,0,0,.95);
    z-index:90;
  }
  .nav-chips.is-open{display:flex;}
  .nav-chip{flex-direction:row;align-items:center;gap:10px;padding:12px 14px;}
  .chip-sub{margin-left:auto;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .section{padding:64px 0;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .article-hero{padding:6px 0 30px;}
  .article-head{padding-top:16px;}
  .article-meta{gap:8px;font-size:12.5px;}
  .crumb{padding-top:18px;font-size:12.5px;}
  .crumb-current{max-width:52vw;}
  .article-body{font-size:16.5px;line-height:1.9;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .cta-band{padding:28px 22px;border-radius:18px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;min-height:48px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:639px){
  .related-grid{grid-template-columns:1fr;}
  .section{padding:48px 0;}
  .brand-sub{display:none;}
  .nav-chip{padding:11px 12px;}
  .chip-sub{font-size:10.5px;}
}

/* roulang page: category1 */
:root{
  --ink-950:#05080F;
  --ink-900:#080D18;
  --ink-800:#0C1424;
  --ink-700:#121D31;
  --line:rgba(126,178,255,.14);
  --line-strong:rgba(126,178,255,.28);
  --teal-400:#35E0D0;
  --teal-600:#1B9E96;
  --cyan-500:#22B8E6;
  --amber-400:#FFB35C;
  --text-hi:#EAF2FF;
  --text-mid:#A7B7CE;
  --text-low:#6E8199;
  --radius-card:18px;
  --radius-img:14px;
  --radius-btn:999px;
  --shadow-card:0 1px 0 rgba(255,255,255,.06) inset, 0 24px 60px -28px rgba(0,0,0,.9), 0 0 0 1px var(--line);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter",ui-monospace,SFMono-Regular,Menlo,monospace;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  color:var(--text-mid);
  background:
    radial-gradient(900px 520px at 84% -10%, rgba(53,224,208,.10), transparent 62%),
    radial-gradient(780px 480px at 4% 2%, rgba(34,184,230,.08), transparent 60%),
    var(--ink-950);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--teal-400);}
img{display:block;max-width:100%;height:auto;border-radius:var(--radius-img);border:1px solid rgba(126,178,255,.16);object-fit:cover;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
:focus-visible{outline:2px solid var(--teal-400);outline-offset:3px;border-radius:6px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;
  top:16px;left:0;right:0;
  z-index:60;
  transition:top .2s ease;
}
.nav-shell{
  position:relative;
  display:flex;
  align-items:center;
  gap:18px;
  padding:10px 14px;
  border-radius:18px;
  border:1px solid var(--line);
  background:rgba(12,20,36,.82);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:0 1px 0 rgba(255,255,255,.05) inset, 0 22px 50px -30px rgba(0,0,0,.95);
  transition:padding .2s ease, background .2s ease;
}
.site-header.is-shrunk .nav-shell{
  padding:6px 14px;
  background:rgba(8,13,24,.94);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:9px;
  flex:none;
}
.brand:hover{color:inherit;}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:28px;height:28px;
  border-radius:9px;
  color:var(--ink-950);
  background:linear-gradient(135deg,var(--teal-400),var(--cyan-500));
  box-shadow:0 0 18px rgba(53,224,208,.35);
}
.brand-text{
  font-size:19px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--text-hi);
}
.brand-sub{
  font-size:11px;
  letter-spacing:.08em;
  color:var(--text-low);
  padding-left:8px;
  border-left:1px solid var(--line-strong);
  line-height:1.6;
}
.nav-chips{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
  flex-wrap:wrap;
}
.nav-chip{
  display:grid;
  grid-template-columns:18px auto;
  grid-template-rows:auto auto;
  column-gap:8px;
  row-gap:1px;
  align-items:center;
  padding:8px 13px;
  border-radius:8px;
  border:1px solid transparent;
  color:var(--text-mid);
  transition:background .18s ease, color .18s ease, border-color .18s ease;
}
.nav-chip svg{
  grid-row:1 / 3;
  width:18px;height:18px;
  color:var(--text-low);
  transition:color .18s ease;
}
.nav-chip .chip-label{
  font-size:13.5px;
  font-weight:600;
  line-height:1.15;
  color:var(--text-hi);
}
.nav-chip .chip-sub{
  font-size:11px;
  line-height:1.15;
  color:var(--text-low);
  letter-spacing:.02em;
}
.nav-chip:hover{background:rgba(53,224,208,.08);color:var(--text-hi);}
.nav-chip:hover svg{color:var(--teal-400);}
.nav-chip.is-active{
  background:rgba(53,224,208,.12);
  border-color:rgba(53,224,208,.22);
  box-shadow:inset 0 -2px 0 var(--teal-400);
}
.nav-chip.is-active svg{color:var(--teal-400);}
.nav-cta{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:6px;
  flex:none;
}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  color:var(--text-hi);
  transition:background .18s ease,border-color .18s ease;
}
.nav-toggle:hover{background:rgba(53,224,208,.1);border-color:var(--teal-400);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 20px;
  border-radius:var(--radius-btn);
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease, filter .18s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--amber-400);
  color:#131008;
  box-shadow:0 0 0 1px rgba(255,179,92,.35), 0 12px 28px -14px rgba(255,179,92,.75);
}
.btn-primary:hover{
  filter:brightness(1.08);
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(255,179,92,.5), 0 0 28px rgba(53,224,208,.35);
  color:#131008;
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  border:1px solid var(--line-strong);
  color:var(--text-hi);
}
.btn-ghost:hover{
  border-color:var(--teal-400);
  color:var(--text-hi);
  transform:translateY(-1px);
}
.btn-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--cyan-500);
  min-height:32px;
}
.btn-arrow span.arw{transition:transform .18s ease;}
.btn-arrow:hover span.arw{transform:translateX(3px);}

/* ============ 通用板块 ============ */
main{padding-top:128px;padding-bottom:0;}
.section{margin-top:96px;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
  flex-wrap:wrap;
}
.section-title{
  position:relative;
  padding-left:16px;
  font-size:clamp(22px,2.6vw,32px);
  font-weight:700;
  line-height:1.3;
  color:var(--text-hi);
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:4px;height:18px;
  border-radius:2px;
  background:var(--teal-400);
  box-shadow:0 0 14px rgba(53,224,208,.55);
}
.section-desc{
  font-size:14px;
  color:var(--text-low);
  margin-top:10px;
  padding-left:16px;
}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.02em;
  color:var(--text-low);
  flex-wrap:wrap;
}
.crumb a{color:var(--text-mid);}
.crumb a:hover{color:var(--teal-400);}
.crumb .sep{color:var(--line-strong);}
.crumb .cur{color:var(--text-hi);}

/* ============ 页头 ============ */
.page-head{
  display:grid;
  grid-template-columns:1fr 240px;
  gap:44px;
  align-items:center;
  margin-top:22px;
}
.page-head h1{
  font-size:clamp(30px,4.4vw,52px);
  font-weight:800;
  line-height:1.18;
  letter-spacing:-.01em;
  color:var(--text-hi);
  margin:14px 0 16px;
}
.page-head .lede{
  font-size:16px;
  color:var(--text-mid);
  max-width:56ch;
}
.page-head-actions{
  display:flex;
  align-items:center;
  gap:14px;
  margin-top:26px;
  flex-wrap:wrap;
}
.page-head-img{
  width:240px;height:160px;
  border-radius:16px;
  box-shadow:0 24px 50px -26px rgba(0,0,0,.9);
}
.status-strip{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:30px;
  padding:12px 18px;
  border-radius:14px;
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(18,29,49,.7),rgba(10,17,32,.85));
  font-size:13px;
  color:var(--text-mid);
  flex-wrap:wrap;
}
.status-dot{
  width:8px;height:8px;
  border-radius:50%;
  background:var(--teal-400);
  box-shadow:0 0 12px rgba(53,224,208,.8);
  flex:none;
}
.status-strip .sep{color:var(--line-strong);}
.status-strip strong{color:var(--text-hi);font-weight:600;}

/* ============ 玻璃卡 ============ */
.glass-card{
  background:linear-gradient(180deg, rgba(18,29,49,.86), rgba(10,17,32,.92));
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:26px;
  transition:border-color .18s ease, transform .18s ease;
}
.glass-card:hover{
  border-color:var(--line-strong);
  transform:translateY(-2px);
}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:8px;
  font-size:12px;
  letter-spacing:.02em;
  color:var(--teal-400);
  background:rgba(53,224,208,.12);
  border:1px solid rgba(53,224,208,.22);
  line-height:1.6;
}
.badge-amber{
  color:var(--amber-400);
  background:rgba(255,179,92,.12);
  border-color:rgba(255,179,92,.28);
}

/* ============ 流程轨道 ============ */
.flow-list{
  display:flex;
  flex-direction:column;
  gap:20px;
  margin-top:8px;
}
.flow-step{
  display:grid;
  grid-template-columns:56px 1fr;
  gap:22px;
  align-items:start;
}
.step-rail{
  position:relative;
  display:flex;
  justify-content:center;
  height:100%;
  padding-top:14px;
}
.step-rail::after{
  content:"";
  position:absolute;
  top:66px;
  bottom:-34px;
  width:2px;
  border-radius:2px;
  background:linear-gradient(180deg,rgba(53,224,208,.85),rgba(53,224,208,.06));
}
.flow-step.is-last .step-rail::after{display:none;}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:48px;height:48px;
  border-radius:50%;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:15px;
  font-weight:700;
  color:var(--teal-400);
  background:var(--ink-800);
  border:1px solid var(--line-strong);
  box-shadow:0 0 0 4px rgba(53,224,208,.05);
  flex:none;
}
.step-card h3{
  font-size:19px;
  font-weight:700;
  color:var(--text-hi);
  margin-bottom:10px;
}
.step-card p{
  font-size:15px;
  line-height:1.9;
  color:var(--text-mid);
}
.step-meta{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid var(--line);
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-low);
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:3px 10px;
  border-radius:8px;
  font-size:12px;
  color:var(--text-mid);
  background:rgba(18,29,49,.9);
  border:1px solid var(--line);
}

/* ============ 清单卡 ============ */
.check-list{
  display:flex;
  flex-direction:column;
  gap:14px;
  margin-top:18px;
}
.check-list li{
  position:relative;
  padding-left:26px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-mid);
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:10px;height:10px;
  border-radius:3px;
  background:rgba(53,224,208,.16);
  border:1px solid rgba(53,224,208,.55);
  box-shadow:0 0 10px rgba(53,224,208,.35);
}
.notice-title{
  font-size:clamp(20px,2.2vw,26px);
  font-weight:700;
  color:var(--text-hi);
  line-height:1.35;
  margin:14px 0 6px;
}
.notice-img{
  width:100%;
  aspect-ratio:16/9;
  margin-top:22px;
}
.prep-card h3{
  font-size:18px;
  font-weight:700;
  color:var(--text-hi);
}
.prep-card .prep-note{
  font-size:14px;
  color:var(--text-low);
  margin-top:8px;
}
.prep-card .btn{margin-top:22px;}

/* ============ 数据窄条 ============ */
.metric-row{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
}
.metric-bar{
  display:flex;
  align-items:center;
  gap:16px;
  min-height:72px;
  padding:14px 20px;
  border-radius:14px;
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(18,29,49,.8),rgba(10,17,32,.9));
  transition:border-color .18s ease, transform .18s ease;
}
.metric-bar:hover{border-color:var(--line-strong);transform:translateY(-2px);}
.metric-num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:15px;
  font-weight:700;
  color:var(--teal-400);
  flex:none;
}
.metric-k{
  font-size:15px;
  font-weight:700;
  color:var(--text-hi);
  line-height:1.4;
}
.metric-d{
  font-size:13px;
  color:var(--text-low);
  line-height:1.6;
}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding:36px;
  border-radius:22px;
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(18,29,49,.9),rgba(8,13,24,.96));
  box-shadow:var(--shadow-card);
  flex-wrap:wrap;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:-40% -10% auto auto;
  width:520px;height:420px;
  background:radial-gradient(circle,rgba(53,224,208,.14),transparent 65%);
  pointer-events:none;
}
.cta-band h2{
  position:relative;
  font-size:clamp(22px,2.6vw,30px);
  font-weight:700;
  color:var(--text-hi);
  line-height:1.35;
}
.cta-band p{
  position:relative;
  font-size:15px;
  color:var(--text-mid);
  margin-top:10px;
  max-width:56ch;
}
.cta-actions{
  position:relative;
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  padding:0 0 34px;
  background:linear-gradient(180deg,rgba(8,13,24,0),rgba(8,13,24,.9));
}
.footer-line{
  height:1px;
  background:linear-gradient(90deg,var(--teal-400),rgba(53,224,208,0));
  opacity:.65;
  margin-bottom:44px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1.2fr 1fr;
  gap:32px;
}
.footer-brand p{
  font-size:14px;
  color:var(--text-low);
  margin-top:14px;
  max-width:32ch;
  line-height:1.8;
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--text-hi);
  margin-bottom:14px;
  letter-spacing:.02em;
}
.footer-col ul{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-col li{
  font-size:14px;
  color:var(--text-low);
  line-height:1.7;
}
.footer-col a{color:var(--text-mid);transition:color .18s ease;}
.footer-col a:hover{color:var(--teal-400);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-top:40px;
  padding-top:22px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-low);
  flex-wrap:wrap;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .page-head{grid-template-columns:1fr 220px;gap:34px;}
  .page-head-img{width:220px;height:148px;}
}
@media (max-width:1023px){
  .nav-toggle{display:inline-flex;}
  .nav-chips{
    position:absolute;
    top:calc(100% + 10px);
    left:0;right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:12px;
    border-radius:16px;
    border:1px solid var(--line);
    background:rgba(12,20,36,.97);
    backdrop-filter:blur(14px);
    box-shadow:0 26px 60px -26px rgba(0,0,0,.95);
    margin-left:0;
  }
  .nav-chips.is-open{display:flex;}
  .nav-chip{padding:11px 14px;}
  .brand-sub{display:none;}
  main{padding-top:118px;}
  .section{margin-top:72px;}
  .page-head{grid-template-columns:1fr;gap:26px;}
  .page-head-img{width:100%;max-width:340px;height:190px;}
  .metric-row{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .cta-band{padding:28px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .flow-step{grid-template-columns:40px 1fr;gap:14px;}
  .step-num{width:38px;height:38px;font-size:13px;}
  .step-rail::after{top:54px;}
  .glass-card{padding:20px;}
  .site-header{top:10px;}
  .nav-shell{padding:8px 10px;gap:10px;}
  .brand-text{font-size:17px;}
  .btn{min-height:46px;padding:0 18px;font-size:13.5px;}
  .cta-band{padding:22px;gap:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-brand p{max-width:none;}
}
@media (max-width:519px){
  body{font-size:15px;}
  .nav-cta .btn-primary{padding:0 14px;font-size:13px;}
  .nav-toggle{width:38px;height:38px;}
  .status-strip{font-size:12px;padding:10px 14px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .page-head h1{font-size:clamp(26px,8vw,34px);}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --ink-950:#05080F;
  --ink-900:#080D18;
  --ink-800:#0C1424;
  --ink-700:#121D31;
  --line:rgba(126,178,255,.14);
  --line-strong:rgba(126,178,255,.28);
  --teal-400:#35E0D0;
  --teal-600:#1B9E96;
  --cyan-500:#22B8E6;
  --amber-400:#FFB35C;
  --text-hi:#EAF2FF;
  --text-mid:#A7B7CE;
  --text-low:#6E8199;
  --radius-card:18px;
  --radius-img:14px;
  --shadow-glass:0 1px 0 rgba(255,255,255,.06) inset, 0 24px 60px -28px rgba(0,0,0,.9), 0 0 0 1px var(--line);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Inter",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding-top:110px;
  background:
    radial-gradient(1100px 520px at 82% -8%, rgba(34,184,230,.10), transparent 62%),
    radial-gradient(900px 460px at 6% 4%, rgba(53,224,208,.08), transparent 60%),
    var(--ink-950);
  color:var(--text-mid);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:var(--cyan-500);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--teal-400)}
img{max-width:100%;display:block}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:rgba(53,224,208,.28);color:#fff}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--teal-400);
  outline-offset:3px;
  border-radius:10px;
}

/* 容器 */
.container{
  width:100%;
  max-width:1200px !important;
  margin:0 auto;
  padding:0 24px;
}

/* 顶部导航 */
.site-header{
  position:fixed;
  top:16px;
  left:0;
  right:0;
  z-index:60;
  transition:top .2s ease;
}
.site-header.is-scrolled{top:8px}
.nav-shell{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:10px 14px;
  border-radius:18px;
  border:1px solid var(--line);
  background:rgba(12,20,36,.82);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:0 1px 0 rgba(255,255,255,.06) inset, 0 24px 60px -30px rgba(0,0,0,.9);
  transition:padding .2s ease, background .2s ease, border-color .2s ease;
}
.site-header.is-scrolled .nav-shell{
  padding:6px 14px;
  background:rgba(8,13,24,.94);
  border-color:var(--line-strong);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text-hi);
  font-weight:700;
  letter-spacing:-.01em;
  flex:0 0 auto;
}
.brand:hover{color:var(--text-hi)}
.brand-mark{
  width:28px;height:28px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:9px;
  color:var(--ink-950);
  background:linear-gradient(135deg,var(--teal-400),var(--cyan-500));
  box-shadow:0 0 18px rgba(53,224,208,.35);
}
.brand-text{font-size:19px;font-family:var(--font-num);letter-spacing:.02em}
.brand-sub{
  font-size:11px;
  font-weight:500;
  color:var(--teal-400);
  padding:2px 7px;
  border-radius:8px;
  border:1px solid rgba(53,224,208,.3);
  background:rgba(53,224,208,.1);
  letter-spacing:.06em;
}
.nav-chips{display:flex;align-items:center;gap:6px;flex-wrap:nowrap}
.nav-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 12px;
  border-radius:8px;
  color:var(--text-mid);
  font-size:14px;
  line-height:1.2;
  border:1px solid transparent;
  border-bottom:2px solid transparent;
  transition:background .18s ease, color .18s ease, border-color .18s ease, transform .18s ease;
}
.nav-chip svg{width:18px;height:18px;flex:0 0 18px;color:var(--text-low);transition:color .18s ease}
.nav-chip .chip-label{font-weight:600;color:inherit}
.nav-chip .chip-sub{font-size:11px;color:var(--text-low);letter-spacing:.02em}
.nav-chip:hover{background:rgba(53,224,208,.08);color:var(--text-hi);transform:translateY(-1px)}
.nav-chip:hover svg{color:var(--teal-400)}
.nav-chip.is-active{
  background:rgba(53,224,208,.12);
  color:var(--text-hi);
  border-bottom-color:var(--teal-400);
}
.nav-chip.is-active svg{color:var(--teal-400)}
.nav-cta{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(5,8,15,.6);
  color:var(--text-hi);
  transition:border-color .18s ease, background .18s ease;
}
.nav-toggle:hover{border-color:var(--teal-400);background:rgba(53,224,208,.1)}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:999px;
  font-size:15px;
  font-weight:700;
  line-height:1;
  border:1px solid transparent;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease, color .18s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(120deg,var(--amber-400),#FFD29A 45%,var(--teal-400));
  color:#06121A;
  box-shadow:0 0 0 1px rgba(255,179,92,.5), 0 10px 30px -14px rgba(255,179,92,.7);
}
.btn-primary:hover{
  transform:translateY(-1px);
  filter:brightness(1.08);
  box-shadow:0 0 0 1px rgba(255,179,92,.6), 0 0 28px rgba(53,224,208,.35);
}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--text-hi);
}
.btn-ghost:hover{border-color:var(--teal-400);color:var(--text-hi);background:rgba(53,224,208,.08)}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--teal-400);font-weight:600;font-size:15px;
  min-height:44px;
}
.btn-text .arrow{transition:transform .18s ease}
.btn-text:hover{color:var(--teal-400)}
.btn-text:hover .arrow{transform:translateX(3px)}

/* 徽章与标签 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;
  border-radius:8px;
  font-size:12px;
  letter-spacing:.04em;
  color:var(--teal-400);
  background:rgba(53,224,208,.12);
  border:1px solid rgba(53,224,208,.24);
}
.badge-amber{
  color:var(--amber-400);
  background:rgba(255,179,92,.12);
  border-color:rgba(255,179,92,.3);
}

/* 页头 */
.page-hero{padding:24px 0 8px}
.page-hero-inner{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:40px;
  align-items:center;
  padding:34px 32px;
  border-radius:22px;
  border:1px solid var(--line);
  background:
    radial-gradient(560px 260px at 88% -20%, rgba(53,224,208,.14), transparent 70%),
    linear-gradient(180deg, rgba(18,29,49,.86), rgba(10,17,32,.92));
  box-shadow:var(--shadow-glass);
}
.page-hero h1{
  font-size:clamp(28px,3.6vw,44px);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.01em;
  color:var(--text-hi);
  margin:14px 0 14px;
}
.page-hero .lead{
  font-size:16px;
  color:var(--text-mid);
  max-width:56ch;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.page-hero-media{
  border-radius:var(--radius-img);
  overflow:hidden;
  border:1px solid rgba(126,178,255,.16);
  box-shadow:0 20px 48px -26px rgba(0,0,0,.9);
  position:relative;
  aspect-ratio:3/2;
}
.page-hero-media img{width:100%;height:100%;object-fit:cover}
.page-hero-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(160deg, rgba(5,8,15,.15), rgba(5,8,15,.62));
  pointer-events:none;
}
.page-hero-media figcaption{
  position:absolute;
  left:12px;right:12px;bottom:10px;
  z-index:2;
  font-size:11px;
  letter-spacing:.04em;
  color:var(--text-low);
}

/* 板块 */
.section{padding:76px 0}
.section-tight{padding:52px 0}
.section-head{max-width:720px;margin-bottom:36px}
.section-head h2{
  font-size:clamp(22px,2.6vw,32px);
  font-weight:700;
  line-height:1.3;
  color:var(--text-hi);
  position:relative;
  padding-left:18px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:.28em;
  width:4px;height:18px;
  border-radius:2px;
  background:var(--teal-400);
  box-shadow:0 0 14px rgba(53,224,208,.6);
}
.section-head p{margin-top:14px;font-size:15px;color:var(--text-mid)}

/* 数据窄条 */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;
}
.stat-row{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:18px 20px;
  min-height:88px;
  border-radius:16px;
  border:1px solid var(--line);
  background:linear-gradient(180deg, rgba(18,29,49,.86), rgba(10,17,32,.92));
  box-shadow:0 1px 0 rgba(255,255,255,.05) inset, 0 20px 46px -32px rgba(0,0,0,.9);
  transition:border-color .18s ease, transform .18s ease;
}
.stat-row:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.stat-num{
  font-family:var(--font-num);
  font-size:22px;
  font-weight:700;
  color:var(--teal-400);
  line-height:1.1;
  font-variant-numeric:tabular-nums;
  min-width:36px;
}
.stat-body strong{display:block;color:var(--text-hi);font-size:15px;font-weight:700;margin-bottom:4px}
.stat-body span{font-size:13px;color:var(--text-low);line-height:1.7;display:block}

/* 图文交替 */
.split-list{display:flex;flex-direction:column;gap:34px}
.split-row{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:32px;
  align-items:center;
  padding:26px;
  border-radius:20px;
  border:1px solid var(--line);
  background:linear-gradient(180deg, rgba(18,29,49,.8), rgba(10,17,32,.9));
  box-shadow:var(--shadow-glass);
  transition:border-color .18s ease, transform .18s ease;
}
.split-row:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.split-row.is-reverse{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
.split-row.is-reverse .split-media{order:2}
.split-row.is-reverse .split-body{order:1}
.split-media{
  border-radius:var(--radius-img);
  overflow:hidden;
  border:1px solid rgba(126,178,255,.16);
  aspect-ratio:16/10;
  position:relative;
}
.split-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.split-row:hover .split-media img{transform:scale(1.03)}
.split-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(200deg, rgba(53,224,208,.10), rgba(5,8,15,.55));
  pointer-events:none;
}
.split-body h3{
  font-size:20px;
  font-weight:700;
  color:var(--text-hi);
  line-height:1.45;
  margin:12px 0 10px;
}
.split-body p{font-size:15px;color:var(--text-mid);line-height:1.9}
.check-list{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.check-list li{
  position:relative;
  padding-left:20px;
  font-size:14px;
  color:var(--text-mid);
  line-height:1.8;
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:8px;height:8px;
  border-radius:3px;
  background:rgba(53,224,208,.35);
  border:1px solid var(--teal-400);
  box-shadow:0 0 10px rgba(53,224,208,.4);
}

/* 标签墙 */
.tag-wall{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:26px;
  border-radius:18px;
  border:1px dashed rgba(126,178,255,.24);
  background:rgba(12,20,36,.5);
}
.tag{
  display:inline-flex;align-items:center;
  padding:7px 14px;
  border-radius:999px;
  font-size:13px;
  color:var(--text-mid);
  border:1px solid var(--line);
  background:rgba(18,29,49,.7);
  transition:color .18s ease, border-color .18s ease, background .18s ease, transform .18s ease;
}
.tag:hover{color:var(--text-hi);border-color:var(--teal-400);background:rgba(53,224,208,.1);transform:translateY(-1px)}

/* 核对卡 */
.check-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.note-card{
  padding:24px;
  border-radius:18px;
  border:1px solid var(--line);
  background:linear-gradient(180deg, rgba(18,29,49,.86), rgba(10,17,32,.92));
  box-shadow:var(--shadow-glass);
  transition:border-color .18s ease, transform .18s ease;
}
.note-card:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.note-card h3{font-size:17px;font-weight:700;color:var(--text-hi);margin:12px 0 8px}
.note-card p{font-size:14px;color:var(--text-mid);line-height:1.85}
.note-num{
  font-family:var(--font-num);
  font-size:13px;
  color:var(--text-low);
  letter-spacing:.06em;
}

/* CTA */
.cta-band{
  position:relative;
  overflow:hidden;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:36px 34px;
  border-radius:22px;
  border:1px solid var(--line-strong);
  background:
    radial-gradient(520px 240px at 12% 120%, rgba(53,224,208,.14), transparent 68%),
    linear-gradient(120deg, rgba(18,29,49,.94), rgba(8,13,24,.96));
  box-shadow:var(--shadow-glass);
}
.cta-band h2{
  font-size:clamp(21px,2.4vw,28px);
  font-weight:700;
  color:var(--text-hi);
  line-height:1.35;
}
.cta-band p{font-size:15px;color:var(--text-mid);margin-top:8px;max-width:52ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* 页脚 */
.site-footer{
  margin-top:24px;
  padding:56px 0 28px;
  background:linear-gradient(180deg, rgba(8,13,24,0), rgba(5,8,15,.9) 40%);
}
.footer-line{
  height:1px;
  width:100%;
  background:linear-gradient(90deg, var(--teal-400), rgba(53,224,208,0));
  opacity:.6;
  margin-bottom:36px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1.2fr 1fr;
  gap:32px;
}
.footer-brand p{font-size:14px;color:var(--text-mid);line-height:1.9;margin-top:14px;max-width:34ch}
.footer-col h4{
  font-size:13px;
  letter-spacing:.08em;
  color:var(--text-hi);
  font-weight:700;
  margin-bottom:14px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px;color:var(--text-mid);line-height:1.7}
.footer-col a{color:var(--text-mid)}
.footer-col a:hover{color:var(--teal-400)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  margin-top:36px;
  padding-top:18px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-low);
  letter-spacing:.02em;
}

/* 响应式 */
@media (max-width:1023px){
  body{padding-top:96px}
  .nav-toggle{display:inline-flex}
  .nav-chips{
    position:absolute;
    left:14px;
    right:14px;
    top:calc(100% + 10px);
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:12px;
    border-radius:16px;
    border:1px solid var(--line-strong);
    background:rgba(8,13,24,.97);
    backdrop-filter:blur(14px);
    box-shadow:0 30px 60px -30px rgba(0,0,0,.95);
    display:none;
  }
  .nav-chips.is-open{display:flex}
  .nav-chip{padding:12px 12px;border-radius:10px}
  .page-hero-inner{grid-template-columns:1fr;gap:26px;padding:28px 24px}
  .page-hero-media{max-width:360px;aspect-ratio:16/10}
  .stat-strip{grid-template-columns:1fr 1fr}
  .split-row,.split-row.is-reverse{grid-template-columns:1fr;gap:22px}
  .split-row.is-reverse .split-media{order:1}
  .split-row.is-reverse .split-body{order:2}
  .check-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .nav-cta .btn-primary{display:none}
  .section{padding:56px 0}
  .section-tight{padding:40px 0}
  .stat-strip{grid-template-columns:1fr}
  .check-grid{grid-template-columns:1fr}
  .cta-band{padding:28px 22px}
  .brand-sub{display:none}
}
@media (max-width:520px){
  .container{padding:0 16px}
  body{padding-top:90px;font-size:15px}
  .page-hero-inner{padding:22px 18px;border-radius:18px}
  .split-row{padding:18px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .btn{width:100%}
  .hero-actions .btn-text{width:auto}
  .cta-actions{width:100%}
}

/* roulang page: category3 */
:root{
  --ink-950:#05080F;
  --ink-900:#080D18;
  --ink-800:#0C1424;
  --ink-700:#121D31;
  --line:rgba(126,178,255,.14);
  --line-strong:rgba(126,178,255,.28);
  --teal-400:#35E0D0;
  --teal-600:#1B9E96;
  --cyan-500:#22B8E6;
  --amber-400:#FFB35C;
  --text-hi:#EAF2FF;
  --text-mid:#A7B7CE;
  --text-low:#6E8199;
  --radius-card:18px;
  --radius-img:14px;
  --radius-badge:8px;
  --shadow-glass:0 1px 0 rgba(255,255,255,.06) inset,0 24px 60px -28px rgba(0,0,0,.9),0 0 0 1px var(--line);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Inter",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-950);
  color:var(--text-mid);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(900px 520px at 78% -10%, rgba(53,224,208,.10), transparent 62%),
    radial-gradient(760px 460px at 4% 8%, rgba(34,184,230,.08), transparent 60%),
    radial-gradient(680px 420px at 50% 108%, rgba(255,179,92,.05), transparent 65%);
}
h1,h2,h3,h4{margin:0;color:var(--text-hi);font-weight:700}
p{margin:0}
a{color:var(--cyan-500);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--teal-400)}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--teal-400);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
main{position:relative;z-index:1}
.site-footer{position:relative;z-index:1}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:16px 0 0;transition:padding .22s ease}
.site-header.is-scrolled{padding-top:10px}
.nav-shell{
  position:relative;
  display:flex;
  align-items:center;
  gap:16px;
  padding:12px 16px;
  border-radius:var(--radius-card);
  background:rgba(12,20,36,.82);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  box-shadow:0 1px 0 rgba(255,255,255,.05) inset,0 20px 48px -30px rgba(0,0,0,.95);
  transition:padding .22s ease,background .22s ease,border-color .22s ease;
}
.site-header.is-scrolled .nav-shell{padding:9px 16px;background:rgba(9,15,27,.94);border-color:var(--line-strong)}
.brand{display:inline-flex;align-items:center;gap:9px;color:var(--text-hi);font-weight:700;flex:none}
.brand:hover{color:var(--text-hi)}
.brand-mark{
  width:28px;height:28px;display:grid;place-items:center;
  border-radius:9px;color:#04121a;
  background:linear-gradient(135deg,var(--teal-400),var(--cyan-500));
  box-shadow:0 0 18px rgba(53,224,208,.35);
  flex:none;
}
.brand-text{font-size:18px;font-weight:800;letter-spacing:.02em}
.brand-sub{font-size:11px;font-weight:500;color:var(--text-low);letter-spacing:.08em;padding-left:9px;border-left:1px solid var(--line-strong);line-height:1.2}
.nav-chips{display:flex;align-items:center;gap:6px;flex:1;justify-content:center}
.nav-chip{
  position:relative;
  display:inline-flex;align-items:center;gap:7px;
  padding:10px 13px;border-radius:var(--radius-badge);
  color:var(--text-mid);font-size:14px;line-height:1.2;
  border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.nav-chip svg{width:17px;height:17px;flex:none;color:var(--text-low);transition:color .18s ease}
.nav-chip:hover{background:rgba(53,224,208,.08);color:var(--text-hi);border-color:var(--line)}
.nav-chip:hover svg{color:var(--teal-400)}
.chip-label{font-weight:600;white-space:nowrap}
.chip-sub{font-size:11px;color:var(--text-low);letter-spacing:.02em;white-space:nowrap}
.nav-chip.is-active{background:rgba(53,224,208,.12);border-color:rgba(53,224,208,.24)}
.nav-chip.is-active svg{color:var(--teal-400)}
.nav-chip.is-active .chip-label{color:var(--text-hi)}
.nav-chip.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;border-radius:2px;
  background:var(--teal-400);box-shadow:0 0 10px rgba(53,224,208,.6);
}
.nav-cta{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  background:rgba(53,224,208,.08);border:1px solid var(--line);color:var(--text-hi);
  cursor:pointer;transition:background .18s ease,border-color .18s ease;
}
.nav-toggle:hover{background:rgba(53,224,208,.16);border-color:var(--line-strong)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:700;line-height:1;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{
  background:linear-gradient(100deg,var(--amber-400) 0%,#FFC98A 44%,var(--teal-400) 100%);
  color:#08131f;
  box-shadow:0 10px 26px -14px rgba(255,179,92,.8);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 28px rgba(53,224,208,.35),0 12px 26px -14px rgba(255,179,92,.9);color:#08131f;filter:brightness(1.06)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text-hi)}
.btn-ghost:hover{border-color:var(--teal-400);color:var(--text-hi);background:rgba(53,224,208,.07);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-text{background:none;border:0;padding:0;min-height:0;color:var(--teal-400);font-weight:600;gap:6px}
.btn-text:hover{color:var(--teal-400)}
.btn-text .arrow{display:inline-block;transition:transform .18s ease}
.btn-text:hover .arrow{transform:translateX(3px)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-tight{padding:40px 0}
.section-head{margin-bottom:32px;max-width:760px}
.section-head h2{display:flex;align-items:center;gap:12px;font-size:clamp(22px,2.6vw,32px);line-height:1.3}
.section-head h2::before{content:"";width:4px;height:18px;border-radius:2px;background:var(--teal-400);box-shadow:0 0 12px rgba(53,224,208,.7);flex:none}
.section-desc{margin-top:14px;font-size:15px;color:var(--text-mid);max-width:620px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:var(--radius-badge);
  font-size:12px;letter-spacing:.02em;font-weight:600;
  background:rgba(53,224,208,.12);color:var(--teal-400);
  border:1px solid rgba(53,224,208,.2);
}
.badge-amber{background:rgba(255,179,92,.14);color:var(--amber-400);border-color:rgba(255,179,92,.28)}
.glass{
  background:linear-gradient(180deg,rgba(18,29,49,.86),rgba(10,17,32,.92));
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-glass);
  transition:border-color .18s ease,transform .18s ease;
}
.glass:hover{border-color:var(--line-strong)}

/* ---------- 页头 ---------- */
.page-head{padding:56px 0 44px}
.page-head-grid{display:grid;grid-template-columns:minmax(0,1.18fr) minmax(0,.82fr);gap:40px;align-items:center}
.page-head-copy h1{font-size:clamp(30px,4.4vw,52px);font-weight:800;line-height:1.18;letter-spacing:-.01em;margin:18px 0 18px}
.page-head-copy .lead{font-size:16px;line-height:1.9;color:var(--text-mid);max-width:560px}
.page-head-copy .btn-row{margin-top:26px}
.status-bar{
  margin-top:28px;display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  padding:12px 18px;border-radius:14px;
  background:rgba(12,20,36,.72);border:1px solid var(--line);
  font-size:13px;color:var(--text-low);letter-spacing:.02em;
}
.status-item{display:inline-flex;align-items:center;gap:8px}
.status-item strong{font-family:var(--font-num);font-weight:700;color:var(--text-hi);font-variant-numeric:tabular-nums}
.dot{width:8px;height:8px;border-radius:50%;background:var(--teal-400);box-shadow:0 0 10px rgba(53,224,208,.8);flex:none}
.status-sep{width:1px;height:14px;background:var(--line-strong)}
.page-head-media{position:relative;border-radius:var(--radius-img);overflow:hidden;border:1px solid rgba(126,178,255,.16)}
.page-head-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.page-head-media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(200deg,rgba(53,224,208,.16),transparent 46%),linear-gradient(0deg,rgba(5,8,15,.9),transparent 58%);
}
.media-note{
  position:absolute;left:16px;bottom:16px;z-index:2;
  display:flex;flex-direction:column;gap:2px;
  padding:12px 16px;border-radius:12px;
  background:rgba(10,17,32,.78);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(10px);
}
.note-num{font-family:var(--font-num);font-size:20px;font-weight:800;color:var(--teal-400);line-height:1.2;font-variant-numeric:tabular-nums}
.note-text{font-size:12px;color:var(--text-low);letter-spacing:.02em}

/* ---------- 数据窄条 ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.stat{
  display:flex;gap:14px;align-items:flex-start;
  padding:18px 20px;min-height:76px;border-radius:14px;
  background:linear-gradient(180deg,rgba(18,29,49,.8),rgba(10,17,32,.9));
  border:1px solid var(--line);
  transition:border-color .18s ease,transform .18s ease;
}
.stat:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.stat-num{font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--teal-400);letter-spacing:.04em;line-height:1.9;flex:none}
.stat-title{font-size:15px;font-weight:700;color:var(--text-hi);line-height:1.6}
.stat-desc{font-size:13px;line-height:1.75;color:var(--text-low);margin-top:2px}

/* ---------- 折叠问答 ---------- */
.faq-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr) 310px;gap:24px;align-items:start}
.faq-col{display:flex;flex-direction:column;gap:14px}
.faq-item{
  position:relative;overflow:hidden;border-radius:14px;
  background:linear-gradient(180deg,rgba(18,29,49,.86),rgba(10,17,32,.92));
  border:1px solid var(--line);
  transition:border-color .18s ease,background .18s ease;
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item.is-open{border-color:rgba(53,224,208,.32)}
.faq-item.is-open::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:var(--teal-400);box-shadow:0 0 12px rgba(53,224,208,.7);
}
.faq-q{
  width:100%;display:flex;align-items:center;gap:12px;
  padding:18px 18px 18px 20px;background:none;border:0;
  color:var(--text-mid);font-size:15.5px;font-weight:600;line-height:1.6;text-align:left;cursor:pointer;
  transition:color .18s ease;
}
.faq-q:hover{color:var(--text-hi)}
.is-open .faq-q{color:var(--text-hi)}
.faq-dot{width:10px;height:10px;border-radius:50%;background:var(--teal-600);flex:none;transition:background .18s ease,box-shadow .18s ease}
.is-open .faq-dot{background:var(--teal-400);box-shadow:0 0 10px rgba(53,224,208,.7)}
.faq-text{flex:1}
.faq-icon{flex:none;display:grid;place-items:center;width:22px;height:22px;color:var(--teal-400)}
.faq-icon svg{width:16px;height:16px;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;fill:none}
.faq-icon .v{transform-box:fill-box;transform-origin:center;transition:transform .16s ease,opacity .16s ease}
.is-open .faq-icon .v{transform:rotate(90deg);opacity:0}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .24s ease}
.is-open .faq-a{grid-template-rows:1fr}
.faq-a>div{overflow:hidden}
.faq-a p{padding:0 20px 20px 42px;font-size:15px;line-height:1.85;color:var(--text-mid)}

/* ---------- 侧边联系卡 ---------- */
.side-card{position:sticky;top:96px;padding:22px;border-radius:var(--radius-card);
  background:linear-gradient(180deg,rgba(18,29,49,.9),rgba(10,17,32,.94));
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-glass);
}
.side-card .side-img{border-radius:12px;overflow:hidden;border:1px solid rgba(126,178,255,.16);margin-bottom:18px}
.side-card .side-img img{width:100%;aspect-ratio:16/10;object-fit:cover}
.side-card h3{font-size:18px;line-height:1.5;margin-bottom:10px}
.side-card p{font-size:14px;line-height:1.85;color:var(--text-mid)}
.side-card .side-list{margin:16px 0 20px;display:flex;flex-direction:column;gap:10px}
.side-card .side-list li{display:flex;gap:9px;font-size:13.5px;color:var(--text-low);line-height:1.7}
.side-card .side-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--teal-600);flex:none;margin-top:8px}
.side-card .btn{width:100%}
.side-mail{margin-top:14px;font-size:13px;color:var(--text-low);text-align:center;letter-spacing:.02em}
.side-mail a{color:var(--cyan-500)}

/* ---------- 排障路径 ---------- */
.split{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:32px;align-items:start}
.step-list{display:flex;flex-direction:column;gap:14px}
.step{
  display:flex;gap:16px;align-items:flex-start;
  padding:20px 22px;border-radius:14px;
  background:linear-gradient(180deg,rgba(18,29,49,.8),rgba(10,17,32,.9));
  border:1px solid var(--line);
  transition:border-color .18s ease,transform .18s ease;
}
.step:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.step-idx{font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--teal-400);letter-spacing:.04em;flex:none;padding-top:2px}
.step-body h3{font-size:16px;line-height:1.6;margin-bottom:4px}
.step-body p{font-size:14px;line-height:1.8;color:var(--text-mid)}
.split-media{border-radius:var(--radius-img);overflow:hidden;border:1px solid rgba(126,178,255,.16);position:relative}
.split-media img{width:100%;aspect-ratio:3/2;object-fit:cover}
.split-media::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(5,8,15,.86),transparent 60%);pointer-events:none}
.split-media .cap{position:absolute;left:16px;right:16px;bottom:14px;z-index:2;font-size:13px;color:var(--text-mid);line-height:1.7}
.split-aside{margin-top:18px;padding:20px 22px;border-radius:14px;background:rgba(12,20,36,.7);border:1px solid var(--line)}
.split-aside h3{font-size:15px;margin-bottom:8px}
.split-aside p{font-size:14px;line-height:1.8;color:var(--text-mid)}

/* ---------- 非对称内容区 ---------- */
.asym{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:24px;align-items:start}
.asym-main{padding:28px;border-radius:var(--radius-card);
  background:linear-gradient(180deg,rgba(18,29,49,.86),rgba(10,17,32,.92));
  border:1px solid var(--line);box-shadow:var(--shadow-glass);
}
.asym-main h3{font-size:20px;line-height:1.5;margin-bottom:12px}
.asym-main>p{font-size:15px;line-height:1.9;color:var(--text-mid)}
.issue-list{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.issue-list li{padding:14px 16px;border-radius:12px;background:rgba(5,8,15,.55);border:1px solid var(--line)}
.issue-list strong{display:block;font-size:14.5px;color:var(--text-hi);font-weight:700;line-height:1.6}
.issue-list span{display:block;font-size:13.5px;color:var(--text-low);line-height:1.8;margin-top:2px}
.asym-side{display:flex;flex-direction:column;gap:16px}
.narrow{display:flex;gap:14px;align-items:flex-start;padding:18px 20px;border-radius:14px;background:linear-gradient(180deg,rgba(18,29,49,.8),rgba(10,17,32,.9));border:1px solid var(--line)}
.narrow .num{font-family:var(--font-num);font-size:22px;font-weight:800;color:var(--teal-400);line-height:1.2;font-variant-numeric:tabular-nums;flex:none}
.narrow .narrow-text strong{display:block;font-size:14.5px;color:var(--text-hi);line-height:1.6}
.narrow .narrow-text span{display:block;font-size:13px;color:var(--text-low);line-height:1.75;margin-top:2px}
.asym-side .thumb{border-radius:14px;overflow:hidden;border:1px solid rgba(126,178,255,.16)}
.asym-side .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover}

/* ---------- CTA 带 ---------- */
.cta-wrap{padding:0 0 96px}
.cta-band{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:38px 40px;border-radius:22px;
  background:linear-gradient(120deg,rgba(18,29,49,.94),rgba(8,13,24,.96));
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-glass);
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 240px at 88% 20%,rgba(53,224,208,.12),transparent 66%),
             radial-gradient(420px 200px at 6% 92%,rgba(255,179,92,.08),transparent 68%);
}
.cta-band h2{position:relative;font-size:clamp(22px,2.6vw,30px);line-height:1.35}
.cta-band p{position:relative;margin-top:10px;font-size:15px;color:var(--text-mid)}
.cta-actions{position:relative;display:flex;align-items:center;gap:18px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{padding:64px 0 34px;background:linear-gradient(180deg,rgba(8,13,24,0),rgba(8,13,24,.9));margin-top:0}
.footer-line{height:1px;background:linear-gradient(90deg,var(--teal-400),rgba(53,224,208,0));margin-bottom:44px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.1fr 1fr;gap:32px}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.85;color:var(--text-low);max-width:300px}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text-hi);letter-spacing:.02em;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:13.5px;line-height:1.75;color:var(--text-low)}
.footer-col a{color:var(--text-mid);font-size:13.5px}
.footer-col a:hover{color:var(--teal-400)}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-low);letter-spacing:.02em;
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .site-header{padding-top:12px}
  .nav-toggle{display:inline-flex}
  .nav-shell{padding:10px 14px}
  .nav-chips{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:6px;
    padding:12px;border-radius:16px;
    background:rgba(8,13,24,.97);
    border:1px solid var(--line-strong);
    box-shadow:0 24px 60px -28px rgba(0,0,0,.95);
  }
  .nav-chips.is-open{display:flex}
  .nav-chip{width:100%;padding:12px 14px}
  .nav-chip.is-active::after{left:14px;right:14px;bottom:5px}
  .page-head-grid{grid-template-columns:1fr;gap:28px}
  .page-head-media{max-width:520px}
  .faq-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .side-card{grid-column:1 / -1;position:static}
  .split{grid-template-columns:1fr;gap:24px}
  .asym{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:72px 0}
  .section-tight{padding:32px 0}
  .cta-wrap{padding-bottom:72px}
}
@media (max-width:767px){
  .stat-strip{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .cta-band{padding:28px 24px}
  .footer-grid{grid-template-columns:1fr}
  .page-head-copy h1{margin-top:14px}
  .section{padding:56px 0}
  .section-head h2{font-size:22px}
  .asym-main{padding:22px}
}
@media (max-width:639px){
  .container{padding:0 16px}
  .brand-sub{display:none}
  .btn{min-height:48px;padding:0 20px;font-size:15px}
  .status-bar{gap:10px;padding:12px 14px;font-size:12.5px}
  .status-sep{display:none}
  .faq-q{padding:16px;font-size:15px}
  .faq-a p{padding:0 16px 18px 38px;font-size:14.5px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-bottom{flex-direction:column;gap:8px}
}