/* roulang page: index */
:root{
  --bg-0:#05080F;--bg-1:#0A1120;--bg-2:#101A2E;
  --brand:#2F6BFF;--brand-soft:#5B8CFF;
  --accent:#FF3D7F;--accent-2:#22D3C5;
  --text-1:#EAF0FF;--text-2:#A6B3CC;--text-3:#6B7A99;
  --line:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.05);
  --ok:#2ED47A;--warn:#FFB020;--err:#FF5C5C;
  --r-lg:24px;--r-md:18px;--r-sm:12px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06),0 20px 40px rgba(0,0,0,.45);
  --shadow-hover:0 0 0 1px rgba(47,107,255,.45),0 8px 30px rgba(47,107,255,.35);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;color:var(--text-1);font-size:16px;line-height:1.85;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background-color:var(--bg-0);
  background-image:
    radial-gradient(circle at center,rgba(255,255,255,.052) 1px,transparent 1.2px),
    radial-gradient(900px 520px at 10% -8%,rgba(47,107,255,.16),transparent 62%),
    radial-gradient(760px 480px at 94% 3%,rgba(255,61,127,.10),transparent 64%);
  background-size:22px 22px,auto,auto;
  background-repeat:repeat,no-repeat,no-repeat;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-soft);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--accent)}
button,input,textarea,select{font-family:inherit;font-size:inherit}
button{cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--text-1)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.mono{font-family:ui-monospace,"JetBrains Mono",SFMono-Regular,Menlo,Consolas,monospace;font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
section{padding:96px 0}
.bg-alt{background:linear-gradient(180deg,rgba(16,26,46,.55),rgba(5,8,15,0))}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.1em;color:var(--accent-2);border:1px solid rgba(34,211,197,.35);background:rgba(34,211,197,.08);padding:6px 12px;border-radius:999px;margin-bottom:16px}
.section-head h2{font-size:32px;line-height:40px}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px;max-width:660px}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;line-height:1;color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.04);padding:6px 10px;border-radius:999px;transition:.18s ease-out}
.badge:hover{color:var(--text-1);border-color:rgba(47,107,255,.5);box-shadow:0 0 16px rgba(47,107,255,.25)}
.tag{display:inline-flex;align-items:center;font-size:12px;color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.03);padding:5px 10px;border-radius:999px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-soft)}
.text-link svg{transition:transform .18s ease-out}
.text-link:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px}
.text-link:hover svg{transform:translateX(3px)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 22px;border-radius:var(--r-sm);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,color .18s ease-out,filter .18s ease-out}
.btn-primary{background:linear-gradient(118deg,var(--brand) 0%,#6B4BFF 52%,var(--accent) 100%);color:#fff;box-shadow:0 10px 26px rgba(47,107,255,.35)}
.btn-primary:hover{color:#fff;transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 12px 34px rgba(255,61,127,.42)}
.btn-primary:active{transform:translateY(0);filter:brightness(.95)}
.btn-primary:disabled{opacity:.4;cursor:not-allowed;transform:none}
.btn-ghost{background:var(--glass);border-color:var(--line);color:var(--text-1);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.btn-ghost:hover{color:var(--text-1);background:rgba(255,255,255,.09);border-color:var(--brand-soft)}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:10px}
.btn-block{width:100%}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;padding:12px 0}
.nav-panel{display:flex;align-items:center;gap:16px;padding:10px 14px 10px 16px;border-radius:20px;border:1px solid var(--line);background:rgba(10,17,32,.72);backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);box-shadow:inset 0 1px 0 rgba(255,255,255,.06);transition:box-shadow .22s ease-out,background .22s ease-out}
.site-header.scrolled .nav-panel{background:rgba(10,17,32,.92);box-shadow:inset 0 1px 0 rgba(255,255,255,.07),0 18px 40px rgba(0,0,0,.5)}
.nav-logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--text-1);white-space:nowrap}
.nav-logo:hover{color:var(--text-1)}
.logo-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--accent));display:grid;place-items:center;box-shadow:0 6px 18px rgba(47,107,255,.4);flex:none}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;margin-right:auto}
.nav-chip{position:relative;display:flex;align-items:center;gap:7px;padding:9px 12px;border-radius:var(--r-sm);font-size:14px;color:var(--text-2);border:1px solid transparent;transition:.2s ease-out;white-space:nowrap}
.nav-chip svg{width:18px;height:18px;flex:none}
.nav-chip:hover{color:var(--text-1);background:rgba(255,255,255,.06);border-color:var(--line)}
.nav-chip.active{color:var(--text-1);background:rgba(47,107,255,.13);border-color:rgba(47,107,255,.42);box-shadow:0 0 18px rgba(47,107,255,.22)}
.nav-chip.active::before{content:"";position:absolute;left:12px;right:12px;top:-1px;height:2px;border-radius:2px;background:var(--accent);box-shadow:0 0 10px var(--accent)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-burger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--glass);align-items:center;justify-content:center;color:var(--text-1)}
.mobile-drawer{display:none;margin-top:10px;padding:14px;border-radius:20px;border:1px solid var(--line);background:rgba(10,17,32,.96);backdrop-filter:blur(16px);box-shadow:0 20px 40px rgba(0,0,0,.5)}
.mobile-drawer.open{display:block}
.mobile-drawer a{display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:12px;color:var(--text-2);font-size:15px;border:1px solid transparent}
.mobile-drawer a:hover,.mobile-drawer a.active{color:var(--text-1);background:rgba(47,107,255,.12);border-color:rgba(47,107,255,.35)}
.mobile-drawer .btn{margin-top:10px}

/* ---------- Hero ---------- */
.hero{padding-top:28px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;min-height:620px}
.hero-copy h1{font-size:clamp(30px,4.6vw,56px);line-height:1.15;font-weight:700;letter-spacing:-.01em}
.hero-sub{margin-top:20px;font-size:18px;line-height:1.75;color:var(--text-2);max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:32px}
.hero-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:40px;max-width:600px}
.hero-metric{border:1px solid var(--line);border-radius:var(--r-md);background:var(--glass);padding:14px 16px;backdrop-filter:blur(12px)}
.hero-metric b{display:block;font-size:22px;font-weight:700;color:var(--text-1)}
.hero-metric span{font-size:13px;color:var(--text-3)}
.hero-metric i{display:block;height:2px;border-radius:2px;margin-top:10px;background:linear-gradient(90deg,var(--brand),var(--accent-2));width:60%}
.hero-visual{position:relative;min-height:480px;border-radius:var(--r-lg);border:1px solid var(--line);overflow:hidden;background-image:linear-gradient(100deg,rgba(5,8,15,.88) 0%,rgba(5,8,15,.44) 62%,rgba(5,8,15,.6) 100%),url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;box-shadow:var(--shadow-card)}
.hero-visual::after{content:"";position:absolute;inset:0;background:radial-gradient(420px 300px at 78% 22%,rgba(255,61,127,.20),transparent 70%)}
.float-card{position:absolute;z-index:2;padding:14px 16px;border-radius:16px;border:1px solid var(--line);background:rgba(12,20,38,.76);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:0 20px 40px rgba(0,0,0,.45)}
.float-card .fc-label{font-size:12px;color:var(--text-3)}
.float-card .fc-value{font-size:24px;font-weight:700;color:var(--text-1);margin-top:4px}
.float-card .fc-bar{height:3px;border-radius:3px;background:rgba(255,255,255,.12);margin-top:10px;width:120px;overflow:hidden}
.float-card .fc-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--accent-2),var(--brand));width:74%}
.fc-1{right:24px;top:34px}
.fc-2{left:22px;bottom:30px}

/* ---------- 指标看板 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.stat-card{position:relative;overflow:hidden;border:1px solid var(--line);border-radius:var(--r-md);background:rgba(255,255,255,.045);padding:28px 24px;transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out}
.stat-card::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,var(--brand),var(--accent-2) 55%,var(--accent))}
.stat-card:hover{transform:translateY(-2px);border-color:rgba(47,107,255,.35);box-shadow:var(--shadow-hover)}
.stat-num{display:flex;align-items:baseline;gap:6px;font-size:clamp(34px,4vw,50px);font-weight:700;line-height:1.1;letter-spacing:0;color:var(--text-1);transition:.2s}
.stat-card:hover .stat-num{filter:brightness(1.15)}
.stat-num em{font-style:normal;font-size:16px;color:var(--text-3);font-weight:500}
.stat-label{margin-top:10px;font-size:15px;color:var(--text-1)}
.stat-meta{margin-top:6px;font-size:13px;color:var(--text-3)}
.stat-line{margin-top:16px;height:3px;border-radius:3px;background:rgba(255,255,255,.1);overflow:hidden}
.stat-line i{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--accent-2))}

/* ---------- 服务矩阵 ---------- */
.bento{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:minmax(212px,auto);gap:22px}
.svc-card{position:relative;display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--r-md);background:rgba(255,255,255,.04);padding:26px 24px;transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;overflow:hidden}
.svc-card:hover{transform:translateY(-2px);border-color:rgba(47,107,255,.35);box-shadow:var(--shadow-hover)}
.svc-icon{width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--glass);display:grid;place-items:center;color:var(--accent-2);flex:none}
.svc-card h3{margin-top:18px;font-size:22px;line-height:30px;font-weight:600}
.svc-card p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--text-2);max-width:58ch}
.svc-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.svc-foot{margin-top:auto;padding-top:18px}
.svc-wide{grid-column:span 2;grid-row:span 2;justify-content:flex-start}
.svc-wide .svc-media{margin-top:20px;border-radius:var(--r-md);border:1px solid var(--line);overflow:hidden;position:relative}
.svc-wide .svc-media img{width:100%;height:220px;object-fit:cover}
.svc-wide .svc-media::after{content:"";position:absolute;inset:auto 0 0 0;height:60%;background:linear-gradient(180deg,transparent,rgba(5,8,15,.85))}
.svc-media-cap{position:absolute;left:18px;bottom:14px;z-index:2;font-size:13px;color:var(--text-2)}

/* ---------- 结果对比 ---------- */
.cmp-wrap{display:grid;grid-template-columns:1fr 40px 1fr;gap:0;align-items:stretch;border:1px solid var(--line);border-radius:var(--r-lg);background:rgba(255,255,255,.035);overflow:hidden}
.cmp-col{padding:30px 28px}
.cmp-col.before{filter:saturate(.35);background:rgba(255,255,255,.02)}
.cmp-col.after{background:radial-gradient(400px 260px at 80% 0%,rgba(255,61,127,.14),transparent 70%),rgba(47,107,255,.06)}
.cmp-divider{position:relative;display:grid;place-items:center;background:linear-gradient(180deg,rgba(47,107,255,.35),rgba(255,61,127,.35));width:1px;justify-self:center}
.cmp-badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;padding:6px 12px;border-radius:999px;border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.04)}
.cmp-col.after .cmp-badge{color:var(--text-1);border-color:rgba(255,61,127,.45);background:rgba(255,61,127,.12)}
.cmp-col h3{margin-top:14px;font-size:22px;line-height:30px}
.cmp-row{margin-top:22px}
.cmp-row-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.cmp-name{font-size:14px;color:var(--text-2)}
.cmp-val{font-size:16px;font-weight:700;color:var(--text-1)}
.cmp-track{margin-top:9px;height:6px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}
.cmp-track i{display:block;height:100%;border-radius:999px;background:rgba(255,255,255,.22)}
.cmp-col.after .cmp-track i{background:linear-gradient(90deg,var(--brand),var(--accent));box-shadow:0 0 14px rgba(255,61,127,.5)}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:26px}
.case-card{border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;background:rgba(255,255,255,.04);transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out}
.case-card:hover{transform:translateY(-2px);border-color:rgba(47,107,255,.35);box-shadow:var(--shadow-hover)}
.case-media{position:relative}
.case-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.case-media::after{content:"";position:absolute;inset:auto 0 0 0;height:55%;background:linear-gradient(180deg,transparent,rgba(5,8,15,.78))}
.case-body{padding:20px 22px 24px}
.case-body h4{font-size:18px;line-height:26px;font-weight:600}
.case-body p{margin-top:8px;font-size:14px;color:var(--text-2)}
.case-fig{display:flex;gap:18px;margin-top:16px;flex-wrap:wrap}
.case-fig div span{display:block;font-size:12px;color:var(--text-3)}
.case-fig div b{font-size:18px;color:var(--accent-2)}

/* ---------- 资讯 / CMS ---------- */
.news-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:24px;align-items:start}
.news-feature{border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;background:rgba(255,255,255,.04);transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out}
.news-feature:hover{transform:translateY(-2px);border-color:rgba(47,107,255,.35);box-shadow:var(--shadow-hover)}
.news-feature-media{display:block;position:relative}
.news-feature-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-feature-media::after{content:"";position:absolute;inset:auto 0 0 0;height:50%;background:linear-gradient(180deg,transparent,rgba(5,8,15,.8))}
.news-feature-body{padding:24px 26px 26px}
.news-feature-body h3{margin-top:14px;font-size:22px;line-height:30px;font-weight:600}
.news-feature-body h3 a{color:var(--text-1)}
.news-feature-body h3 a:hover{color:var(--brand-soft)}
.news-feature-body p{margin-top:10px;font-size:14px;color:var(--text-2)}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:18px}
.news-meta .mono{font-size:13px;color:var(--text-3)}
.news-list{display:flex;flex-direction:column;gap:14px}
.news-row{display:flex;gap:18px;justify-content:space-between;align-items:flex-start;padding:20px 22px;border:1px solid var(--line);border-radius:var(--r-md);background:rgba(255,255,255,.035);color:var(--text-1);transition:transform .2s ease-out,border-color .2s ease-out,background .2s ease-out,box-shadow .2s ease-out}
.news-row:hover{transform:translateY(-2px);border-color:rgba(47,107,255,.35);background:rgba(255,255,255,.06);box-shadow:var(--shadow-hover);color:var(--text-1)}
.news-row h4{margin-top:10px;font-size:17px;line-height:25px;font-weight:600}
.news-row p{margin-top:6px;font-size:13px;color:var(--text-3);overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.news-row-side{font-size:13px;color:var(--text-3);white-space:nowrap;flex:none}
.empty-state{display:flex;flex-direction:column;align-items:center;gap:14px;padding:64px 24px;border:1px solid var(--line);border-radius:var(--r-lg);background:rgba(255,255,255,.04);text-align:center}
.empty-state p{color:var(--text-2);font-size:15px}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.faq-item{border:1px solid var(--line);border-radius:var(--r-md);background:rgba(255,255,255,.04);overflow:hidden;position:relative;transition:.2s ease-out}
.faq-item.open{background:rgba(255,255,255,.07);border-color:rgba(47,107,255,.35)}
.faq-item.open::before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--accent);box-shadow:0 0 12px var(--accent)}
.faq-q{width:100%;display:flex;align-items:center;gap:14px;padding:20px 22px;background:none;border:0;text-align:left;color:var(--text-1);font-size:16px;font-weight:600}
.faq-q .idx{font-size:13px;color:var(--text-3);flex:none}
.faq-q .txt{flex:1}
.faq-q .plus{flex:none;width:22px;height:22px;display:grid;place-items:center;color:var(--brand-soft);transition:transform .22s ease-out}
.faq-item.open .plus{transform:rotate(45deg);color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out}
.faq-a p{padding:0 22px 22px 59px;font-size:14px;line-height:1.85;color:var(--text-2)}

/* ---------- 表单 ---------- */
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:32px;align-items:start}
.contact-copy h2{font-size:32px;line-height:40px}
.contact-copy p{margin-top:16px;color:var(--text-2)}
.contact-points{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.contact-points li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2)}
.contact-points li svg{flex:none;margin-top:5px;color:var(--accent-2)}
.form-card{position:relative;border:1px solid var(--line);border-radius:var(--r-lg);background:rgba(255,255,255,.045);padding:32px;box-shadow:var(--shadow-card);overflow:hidden;clip-path:polygon(0 0,calc(100% - 26px) 0,100% 26px,100% 100%,0 100%)}
.form-card::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,var(--brand),var(--accent))}
.field{margin-bottom:20px}
.field label{display:block;font-size:14px;color:var(--text-2);margin-bottom:8px}
.field label .req{color:var(--accent);margin-left:4px}
.field input,.field textarea{width:100%;background:rgba(5,8,15,.55);border:1px solid var(--line);border-radius:var(--r-sm);color:var(--text-1);padding:0 14px;height:48px;transition:.18s ease-out}
.field textarea{height:auto;min-height:110px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field textarea:focus{border-color:var(--brand-soft);box-shadow:0 0 0 3px rgba(47,107,255,.18);outline:none}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{position:relative}
.chip input{position:absolute;opacity:0;width:1px;height:1px}
.chip span{display:inline-flex;align-items:center;padding:9px 14px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.03);font-size:14px;color:var(--text-2);cursor:pointer;transition:.18s ease-out}
.chip input:checked+span{border-color:rgba(47,107,255,.6);background:rgba(47,107,255,.14);color:var(--text-1);box-shadow:0 0 16px rgba(47,107,255,.25)}
.chip input:focus-visible+span{outline:2px solid var(--accent);outline-offset:2px}
.field-error{display:none;margin-top:12px;font-size:13px;color:var(--err)}
.field.invalid .field-error{display:block}
.field.invalid input{border-color:var(--err)}
.form-note{margin-top:14px;font-size:13px;color:var(--text-3)}
.form-success{display:none;text-align:center;padding:26px 6px}
.form-success.on{display:block}
.form-success .ok-icon{width:56px;height:56px;border-radius:50%;margin:0 auto 16px;display:grid;place-items:center;background:rgba(46,212,122,.14);border:1px solid rgba(46,212,122,.5);color:var(--ok)}
.form-success h3{font-size:20px}
.form-success p{margin-top:10px;color:var(--text-2);font-size:14px}

/* ---------- 通用转化条 ---------- */
.cta-bar{margin:0 0 96px}
.cta-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;padding:28px 32px;border-radius:var(--r-lg);border:1px solid var(--line);background:radial-gradient(600px 240px at 12% 0%,rgba(47,107,255,.20),transparent 70%),rgba(255,255,255,.05);backdrop-filter:blur(14px);box-shadow:var(--shadow-card)}
.cta-bar-inner h3{font-size:22px;line-height:30px}
.cta-bar-inner p{margin-top:8px;font-size:14px;color:var(--text-2)}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;border-top:1px solid var(--line);background-color:var(--bg-1);background-image:radial-gradient(circle at center,rgba(255,255,255,.05) 1px,transparent 1.2px);background-size:22px 22px;padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand .nav-logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:340px}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--text-2)}
.footer-col a:hover{color:var(--brand-soft)}
.qr-box{width:96px;height:96px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.05);display:grid;place-items:center;color:var(--text-3)}
.qr-cap{margin-top:10px;font-size:13px;color:var(--text-3)}
.footer-contact li{font-size:14px;color:var(--text-2)}
.footer-bottom{margin-top:56px;border-top:1px solid var(--line);padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--text-3)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .nav-links{gap:4px}
  .nav-chip{padding:8px 10px;font-size:13px}
}
@media (max-width:1023px){
  section{padding:72px 0}
  .nav-links{display:none}
  .nav-burger{display:flex}
  .nav-actions .btn{display:none}
  .hero-grid{grid-template-columns:1fr;min-height:auto;gap:32px}
  .hero-visual{min-height:340px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .bento{grid-template-columns:repeat(2,1fr)}
  .svc-wide{grid-column:span 2;grid-row:auto}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-bar{margin-bottom:72px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  section{padding:56px 0}
  .section-head h2{font-size:26px;line-height:34px}
  .hero-copy h1{font-size:clamp(28px,7.5vw,38px)}
  .hero-sub{font-size:16px}
  .hero-metrics{grid-template-columns:1fr 1fr}
  .hero-visual{min-height:280px}
  .fc-2{left:14px;bottom:16px}
  .fc-1{right:14px;top:16px}
  .stat-grid{grid-template-columns:1fr 1fr;gap:16px}
  .stat-card{padding:22px 18px}
  .bento{grid-template-columns:1fr;gap:18px}
  .svc-wide{grid-column:auto}
  .cmp-wrap{grid-template-columns:1fr}
  .cmp-divider{width:100%;height:1px}
  .case-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .form-card{padding:24px 20px;clip-path:none}
  .cta-bar-inner{padding:24px 20px}
  .news-row{flex-direction:column;gap:10px}
}
@media (max-width:520px){
  .hero-metrics{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr}
  .hero-cta{gap:12px}
  .btn{width:100%}
  .hero-cta .text-link{width:auto}
}

/* roulang page: article */
:root{
  --bg-0:#05080F;
  --bg-1:#0A1120;
  --bg-2:#101A2E;
  --brand:#2F6BFF;
  --brand-soft:#5B8CFF;
  --accent:#FF3D7F;
  --accent-2:#22D3C5;
  --text-1:#EAF0FF;
  --text-2:#A6B3CC;
  --text-3:#6B7A99;
  --line:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.05);
  --radius-lg:24px;
  --radius:18px;
  --radius-sm:12px;
  --shadow-1:inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-2:0 20px 40px rgba(0,0,0,.45);
  --shadow-hover:0 0 0 1px rgba(47,107,255,.45), 0 8px 30px rgba(47,107,255,.35);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(rgba(255,255,255,.055) 1px, transparent 1px),
    radial-gradient(circle at 12% -4%, rgba(47,107,255,.16), transparent 46%),
    radial-gradient(circle at 88% 8%, rgba(255,61,127,.10), transparent 42%);
  background-size:22px 22px, auto, auto;
  background-repeat:repeat, no-repeat, no-repeat;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand-soft);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px}
img{max-width:100%;display:block}
button{font:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
::selection{background:rgba(255,61,127,.35);color:#fff}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:0}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;padding:12px 20px 0}
.nav-panel{
  position:relative;
  max-width:1280px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:18px;
  padding:10px 14px;
  border-radius:20px;
  border:1px solid var(--line);
  background:rgba(10,17,32,.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-1), 0 10px 30px rgba(0,0,0,.35);
  transition:box-shadow .25s ease, background .25s ease, border-color .25s ease;
}
.nav-panel.is-scrolled{
  background:rgba(8,14,26,.88);
  border-color:rgba(47,107,255,.28);
  box-shadow:var(--shadow-1), 0 20px 40px rgba(0,0,0,.55);
}
.nav-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:800;
  letter-spacing:.01em;
  color:var(--text-1);
  white-space:nowrap;
}
.nav-logo:hover{color:var(--text-1);text-decoration:none}
.logo-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;height:34px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  box-shadow:0 6px 18px rgba(47,107,255,.4);
  flex:0 0 auto;
}
.nav-links{display:none;align-items:center;gap:6px;margin-left:auto}
.nav-chip{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 12px;
  border-radius:12px;
  font-size:14px;
  color:var(--text-2);
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.nav-chip svg{width:18px;height:18px;flex:0 0 auto}
.nav-chip:hover{background:rgba(255,255,255,.07);color:var(--text-1);text-decoration:none}
.nav-chip.active{
  color:var(--text-1);
  background:rgba(47,107,255,.16);
  border-color:rgba(47,107,255,.38);
}
.nav-chip.active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:-1px;
  height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  box-shadow:0 0 12px rgba(255,61,127,.65);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-links + .nav-actions{margin-left:12px}
.nav-burger{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-1);
  transition:border-color .2s ease,background .2s ease;
}
.nav-burger:hover{border-color:rgba(47,107,255,.45);background:rgba(255,255,255,.09)}
.nav-drawer{
  display:none;
  max-width:1280px;
  margin:10px auto 0;
  padding:14px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:rgba(8,14,26,.94);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow-2);
}
.nav-drawer.open{display:block}
.nav-drawer a{
  display:flex;align-items:center;gap:10px;
  padding:12px 14px;border-radius:12px;
  color:var(--text-2);font-size:15px;
}
.nav-drawer a:hover{background:rgba(255,255,255,.07);color:var(--text-1);text-decoration:none}
.nav-drawer a.active{background:rgba(47,107,255,.16);color:var(--text-1);border:1px solid rgba(47,107,255,.35)}
.nav-drawer svg{width:18px;height:18px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 22px;
  border-radius:12px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  text-decoration:none;
  transition:transform .18s ease-out, box-shadow .18s ease-out, background .18s ease-out, border-color .18s ease-out, filter .18s ease-out;
}
.btn:hover{text-decoration:none}
.btn-primary{
  color:#fff;
  background:linear-gradient(120deg,var(--brand) 0%, #4B5BFF 48%, var(--accent) 100%);
  box-shadow:0 8px 26px rgba(47,107,255,.36);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 12px 34px rgba(255,61,127,.42);color:#fff}
.btn-primary:active{transform:translateY(0);filter:brightness(.95)}
.btn-ghost{
  color:var(--text-1);
  background:var(--glass);
  border-color:var(--line);
}
.btn-ghost:hover{background:rgba(255,255,255,.09);border-color:var(--brand-soft);color:var(--text-1)}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:12px}
.btn-block{width:100%}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand-soft);
  font-size:14px;font-weight:600;
}
.btn-text svg{width:16px;height:16px;transition:transform .18s ease-out}
.btn-text:hover{color:var(--accent);text-decoration:none}
.btn-text:hover svg{transform:translateX(3px)}

/* ---------- 面包屑 ---------- */
.page-top{padding:36px 0 0}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);
}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:var(--text-3);opacity:.6}
.crumb-current{color:var(--text-3);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头部 ---------- */
.post-head{
  position:relative;
  margin-top:22px;
  padding:38px 34px 34px;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:
    linear-gradient(90deg, rgba(5,8,15,.94) 0%, rgba(5,8,15,.72) 55%, rgba(5,8,15,.86) 100%),
    url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  box-shadow:var(--shadow-1), var(--shadow-2);
  overflow:hidden;
}
.post-head::after{
  content:"";
  position:absolute;inset:auto -60px -120px auto;
  width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle, rgba(255,61,127,.22), transparent 68%);
  pointer-events:none;
}
.post-badge-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  font-size:12px;
  color:var(--text-2);
  background:var(--glass);
  letter-spacing:.02em;
}
.badge-accent{border-color:rgba(255,61,127,.45);color:#FFC3D9;background:rgba(255,61,127,.12)}
.badge-line{border-color:rgba(34,211,197,.4);color:#B4F2ED;background:rgba(34,211,197,.10)}
.post-title{
  margin:0;
  font-size:clamp(30px, 4.6vw, 50px);
  line-height:1.18;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--text-1);
  max-width:22ch;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  margin-top:22px;
  font-size:13px;color:var(--text-3);
}
.meta-item{display:inline-flex;align-items:center;gap:8px}
.meta-item svg{width:16px;height:16px;color:var(--text-3)}
.meta-item .mono{color:var(--text-2)}
.lead{
  position:relative;
  margin-top:26px;
  padding-left:18px;
  max-width:70ch;
  color:var(--text-2);
  font-size:15.5px;
  line-height:1.9;
}
.lead::before{
  content:"";
  position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--accent),var(--brand));
  box-shadow:0 0 14px rgba(255,61,127,.6);
}

/* ---------- 文章布局 ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:44px;
  padding:56px 0 0;
}
.article-main{min-width:0}
.article-body{
  max-width:820px;
  font-size:16px;
  line-height:1.9;
  color:var(--text-2);
}
.article-body > :first-child{margin-top:0}
.article-body p{margin:0 0 24px}
.article-body h2{
  position:relative;
  margin:54px 0 20px;
  padding-left:18px;
  font-size:clamp(24px,2.6vw,30px);
  line-height:1.4;
  font-weight:700;
  color:var(--text-1);
  letter-spacing:-.005em;
}
.article-body h2::before{
  content:"";
  position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),var(--accent));
  box-shadow:0 0 14px rgba(255,61,127,.5);
}
.article-body h3{
  margin:38px 0 14px;
  font-size:22px;line-height:1.5;font-weight:600;color:var(--text-1);
}
.article-body h4{
  margin:28px 0 12px;
  font-size:18px;line-height:1.6;font-weight:600;color:var(--text-1);
}
.article-body a{color:var(--brand-soft);text-decoration:underline;text-underline-offset:4px}
.article-body a:hover{color:var(--accent)}
.article-body strong{color:var(--text-1);font-weight:600}
.article-body blockquote{
  margin:30px 0;
  padding:20px 24px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  border-left:3px solid var(--accent);
  background:rgba(255,255,255,.05);
  backdrop-filter:blur(12px);
  color:var(--text-2);
  box-shadow:var(--shadow-1);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul,.article-body ol{margin:0 0 26px;padding-left:0;list-style:none}
.article-body li{position:relative;padding-left:26px;margin-bottom:12px}
.article-body ul > li::before{
  content:"";
  position:absolute;left:2px;top:11px;
  width:9px;height:9px;border-radius:3px;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  box-shadow:0 0 10px rgba(47,107,255,.5);
}
.article-body ol{counter-reset:artol}
.article-body ol > li{counter-increment:artol}
.article-body ol > li::before{
  content:counter(artol,decimal-leading-zero);
  position:absolute;left:0;top:0;
  font-family:var(--font-mono);
  font-size:13px;color:var(--accent-2);
}
.article-body img{
  width:100%;
  margin:28px 0 12px;
  border-radius:14px;
  border:1px solid var(--line);
}
.article-body figure{margin:28px 0}
.article-body figcaption{
  text-align:center;
  font-size:13px;
  color:var(--text-3);
  margin-top:2px;
}
.article-body table{
  width:100%;
  margin:28px 0;
  border-collapse:separate;
  border-spacing:0;
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
  background:rgba(255,255,255,.04);
  font-size:15px;
}
.article-body thead th{
  padding:14px 16px;
  text-align:left;
  font-weight:600;
  color:var(--text-1);
  background:rgba(47,107,255,.15);
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.article-body tbody td{
  padding:13px 16px;
  border-bottom:1px solid rgba(255,255,255,.06);
  color:var(--text-2);
}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.03)}
.article-body tbody tr:last-child td{border-bottom:none}
.article-body hr{margin:38px 0;border:none;height:1px;background:var(--line)}

/* ---------- 目录（移动端折叠） ---------- */
.toc-mobile{
  margin-bottom:26px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--glass);
  overflow:hidden;
}
.toc-mobile-btn{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 18px;
  background:transparent;border:none;
  color:var(--text-1);font-size:15px;font-weight:600;
}
.toc-mobile-btn svg{width:18px;height:18px;transition:transform .2s ease}
.toc-mobile.open .toc-mobile-btn svg{transform:rotate(180deg)}
.toc-mobile-list{display:none;padding:0 18px 14px;margin:0;list-style:none}
.toc-mobile.open .toc-mobile-list{display:block}
.toc-mobile-list li{margin:0 0 8px}
.toc-mobile-list a{font-size:14px;color:var(--text-2)}
.toc-mobile-list a:hover{color:var(--accent)}

/* ---------- 侧栏 ---------- */
.side-col{display:none}
.side-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  padding:22px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--glass);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-1);
}
.side-title{
  display:flex;align-items:center;gap:8px;
  margin:0 0 16px;
  font-size:14px;font-weight:700;color:var(--text-1);letter-spacing:.02em;
}
.side-title::before{
  content:"";width:3px;height:14px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--accent));
}
.toc-list{margin:0;padding:0;list-style:none;max-height:46vh;overflow:auto}
.toc-list li{margin:0 0 4px}
.toc-link{
  display:block;
  padding:8px 12px;
  border-radius:10px;
  border:1px solid transparent;
  font-size:13.5px;
  line-height:1.6;
  color:var(--text-3);
  transition:color .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.toc-link:hover{color:var(--text-1);background:rgba(255,255,255,.06);text-decoration:none}
.toc-link.lv3{padding-left:22px;font-size:13px}
.toc-link.active{
  color:var(--text-1);
  background:rgba(47,107,255,.14);
  border-color:rgba(47,107,255,.4);
  box-shadow:0 0 0 1px rgba(255,61,127,.22), 0 6px 20px rgba(47,107,255,.25);
}
.toc-empty{font-size:13px;color:var(--text-3);padding:6px 12px}
.contact-card p{margin:0 0 14px;font-size:13.5px;color:var(--text-2);line-height:1.8}
.contact-list{margin:0 0 16px;padding:0;list-style:none}
.contact-list li{
  display:flex;justify-content:space-between;gap:10px;
  padding:8px 0;
  font-size:13px;color:var(--text-3);
  border-bottom:1px dashed rgba(255,255,255,.08);
}
.contact-list li:last-child{border-bottom:none}
.contact-list .mono{color:var(--text-2)}

/* ---------- 空态 ---------- */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;
  padding:64px 28px;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:var(--glass);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-1);
  text-align:center;
}
.empty-state svg{width:44px;height:44px;color:var(--text-3)}
.empty-state p{margin:0;font-size:15px;color:var(--text-2)}
.empty-state .empty-hint{font-size:13px;color:var(--text-3)}

/* ---------- 文末 ---------- */
.post-foot{padding:56px 0 0}
.post-nav{display:grid;grid-template-columns:1fr;gap:20px;margin-bottom:44px}
.post-nav-card{
  display:block;
  padding:22px 24px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--glass);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.post-nav-card:hover{
  transform:translateY(-2px);
  border-color:rgba(47,107,255,.35);
  box-shadow:var(--shadow-hover);
  text-decoration:none;
}
.post-nav-label{font-size:12px;color:var(--text-3);letter-spacing:.08em;margin-bottom:8px;display:block}
.post-nav-title{font-size:16px;font-weight:600;color:var(--text-1);display:block;line-height:1.6}
.post-nav-desc{font-size:13px;color:var(--text-3);margin-top:8px;display:block}
.section-head-sm{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:22px;flex-wrap:wrap}
.section-title-sm{margin:0;font-size:22px;font-weight:700;color:var(--text-1);line-height:1.4}
.rel-grid{display:grid;grid-template-columns:1fr;gap:20px}
.rel-card{
  display:flex;flex-direction:column;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--bg-1);
  overflow:hidden;
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.rel-card:hover{transform:translateY(-2px);border-color:rgba(47,107,255,.35);box-shadow:var(--shadow-hover)}
.rel-card img{aspect-ratio:16 / 9;width:100%;object-fit:cover;border-bottom:1px solid var(--line)}
.rel-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{margin:0;font-size:16px;font-weight:600;color:var(--text-1);line-height:1.6}
.rel-body h3 a{color:var(--text-1)}
.rel-body h3 a:hover{color:var(--accent);text-decoration:none}
.rel-body p{margin:0;font-size:13.5px;color:var(--text-3);line-height:1.75}
.rel-card .btn-text{margin-top:auto}

/* ---------- 转化条 ---------- */
.cta-band-wrap{padding:64px 0 0}
.cta-band{
  position:relative;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  padding:30px 34px;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:
    radial-gradient(circle at 8% 20%, rgba(47,107,255,.20), transparent 42%),
    radial-gradient(circle at 92% 80%, rgba(255,61,127,.18), transparent 44%),
    rgba(255,255,255,.05);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow-1), var(--shadow-2);
  overflow:hidden;
}
.cta-band h2{margin:0 0 8px;font-size:22px;font-weight:700;color:var(--text-1);line-height:1.45}
.cta-band p{margin:0;font-size:14px;color:var(--text-2);max-width:60ch;line-height:1.8}
.cta-band-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px}
.cta-note{font-size:13px;color:var(--text-3)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:84px;
  border-top:1px solid var(--line);
  background-color:var(--bg-1);
  background-image:radial-gradient(rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:22px 22px;
  padding:56px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:36px;
  padding-bottom:42px;
}
.footer-brand p{margin:16px 0 0;font-size:14px;color:var(--text-3);line-height:1.9;max-width:42ch}
.footer-col h4{margin:0 0 16px;font-size:15px;font-weight:700;color:var(--text-1)}
.footer-col ul{margin:0;padding:0;list-style:none}
.footer-col li{margin-bottom:10px;font-size:14px;color:var(--text-3)}
.footer-col a{color:var(--text-2)}
.footer-col a:hover{color:var(--brand-soft);text-decoration:none}
.qr-box{
  display:inline-flex;align-items:center;justify-content:center;
  width:78px;height:78px;
  border-radius:14px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-2);
}
.qr-cap{margin:10px 0 0;font-size:12px;color:var(--text-3)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  padding:20px 0 26px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.footer-bottom .mono{color:var(--text-3)}

/* ---------- 响应式 ---------- */
@media (min-width:640px){
  .post-nav{grid-template-columns:1fr 1fr}
  .rel-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (min-width:900px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr}
}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 320px;gap:52px}
  .side-col{display:block}
  .toc-mobile{display:none}
  .rel-grid{grid-template-columns:repeat(3,1fr)}
}
@media (min-width:1100px){
  .nav-links{display:flex}
  .nav-burger{display:none}
}
@media (max-width:1099px){
  .nav-actions{margin-left:auto}
}
@media (max-width:639px){
  .container{padding:0 20px}
  .site-header{padding:10px 14px 0}
  .post-head{padding:28px 22px 26px}
  .post-title{max-width:none}
  .lead{padding-left:14px}
  .article-layout{padding-top:42px;gap:34px}
  .cta-band{padding:24px 22px}
  .cta-band-actions{width:100%}
  .cta-band-actions .btn{width:100%}
  .nav-actions .btn-sm{display:none}
  .crumb-current{max-width:32ch}
}

/* roulang page: category1 */
:root{
  --bg-0:#05080F;
  --bg-1:#0A1120;
  --bg-2:#101A2E;
  --brand:#2F6BFF;
  --brand-soft:#5B8CFF;
  --accent:#FF3D7F;
  --accent-2:#22D3C5;
  --text-1:#EAF0FF;
  --text-2:#A6B3CC;
  --text-3:#6B7A99;
  --line:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.05);
  --ok:#2ED47A;
  --warn:#FFB020;
  --err:#FF5C5C;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --mono:ui-monospace,"JetBrains Mono",SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
  --cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06),0 20px 40px rgba(0,0,0,.45);
  --shadow-hover:0 0 0 1px rgba(47,107,255,.45),0 8px 30px rgba(47,107,255,.35);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body.site-body{
  margin:0;
  padding:0;
  font-family:var(--cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(circle at 12% -4%, rgba(47,107,255,.14), transparent 44%),
    radial-gradient(circle at 88% 6%, rgba(255,61,127,.09), transparent 40%);
  background-repeat:no-repeat;
  background-size:100% 900px,100% 820px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand-soft);text-decoration:none;transition:color .18s ease,text-decoration-color .18s ease;}
a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.skip-link{position:absolute;left:-9999px;top:0;z-index:200;background:var(--bg-2);color:var(--text-1);padding:10px 16px;border-radius:var(--r-sm);border:1px solid var(--line);}
.skip-link:focus{left:16px;top:16px;}

.wrap{max-width:1280px;margin:0 auto;padding:0 32px;width:100%;}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:80;padding:12px 32px 0;}
.nav-panel{
  position:relative;
  max-width:1280px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:16px;
  padding:10px 12px 10px 18px;
  border:1px solid var(--line);
  border-radius:20px;
  background:rgba(10,17,32,.74);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card);
  transition:background .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-scrolled .nav-panel{
  background:rgba(8,14,26,.94);
  border-color:rgba(47,107,255,.22);
  box-shadow:0 22px 44px rgba(0,0,0,.5),0 0 0 1px rgba(47,107,255,.14);
}
.nav-logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--text-1);flex:0 0 auto;}
.nav-logo:hover{color:var(--text-1);text-decoration:none;}
.logo-mark{
  width:30px;height:30px;border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand) 0%,var(--accent) 130%);
  box-shadow:0 6px 18px rgba(47,107,255,.4);
}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:6px;overflow-x:auto;scrollbar-width:none;}
.nav-links::-webkit-scrollbar{display:none;}
.nav-chip{
  position:relative;
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 13px;
  border:1px solid transparent;
  border-radius:var(--r-sm);
  font-size:14px;
  line-height:1.2;
  white-space:nowrap;
  color:var(--text-2);
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.nav-chip svg{width:18px;height:18px;flex:0 0 auto;stroke:currentColor;}
.nav-chip:hover{background:rgba(255,255,255,.07);color:var(--text-1);text-decoration:none;}
.nav-chip.active{
  color:#fff;
  background:rgba(47,107,255,.14);
  border-color:rgba(47,107,255,.45);
  box-shadow:0 0 0 1px rgba(47,107,255,.18),0 6px 18px rgba(47,107,255,.18);
}
.nav-chip.active::before{
  content:"";position:absolute;top:-1px;left:14px;right:14px;height:2px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 10px var(--accent);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.nav-burger{
  display:none;width:42px;height:42px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:var(--glass);color:var(--text-1);
  align-items:center;justify-content:center;transition:background .18s ease,border-color .18s ease;
}
.nav-burger:hover{background:rgba(255,255,255,.1);border-color:rgba(47,107,255,.4);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,filter .18s ease;
  white-space:nowrap;
}
.btn-primary{
  color:#fff;
  background:linear-gradient(100deg,var(--brand) 0%,var(--accent) 120%);
  box-shadow:0 0 0 1px rgba(47,107,255,.35),0 10px 26px rgba(47,107,255,.35);
}
.btn-primary:hover{color:#fff;text-decoration:none;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,61,127,.5),0 14px 34px rgba(255,61,127,.38);}
.btn-primary:active{transform:translateY(0);filter:brightness(.95);}
.btn-ghost{color:var(--text-1);background:var(--glass);border:1px solid var(--line);}
.btn-ghost:hover{color:#fff;text-decoration:none;border-color:var(--brand-soft);background:rgba(255,255,255,.09);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-soft);
  height:auto;padding:0;background:none;border:none;
}
.btn-text svg{width:20px;height:20px;transition:transform .18s ease;}
.btn-text:hover{color:var(--accent);text-decoration:none;}
.btn-text:hover svg{transform:translateX(3px);}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;}

/* 抽屉 */
.drawer{position:fixed;inset:0;z-index:90;display:none;}
.drawer.is-open{display:block;}
.drawer-mask{position:absolute;inset:0;background:rgba(3,6,12,.72);backdrop-filter:blur(4px);}
.drawer-panel{
  position:absolute;left:16px;right:16px;top:14px;
  background:rgba(10,17,32,.98);
  border:1px solid var(--line);border-radius:var(--r-lg);
  padding:18px;box-shadow:0 30px 60px rgba(0,0,0,.6);
  max-height:calc(100vh - 40px);overflow-y:auto;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:var(--glass);color:var(--text-1);display:inline-flex;align-items:center;justify-content:center;}
.drawer-links{display:grid;gap:8px;}
.drawer-links a{
  display:flex;align-items:center;gap:10px;padding:13px 14px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:var(--glass);color:var(--text-1);font-size:15px;
}
.drawer-links a.active{border-color:rgba(47,107,255,.5);background:rgba(47,107,255,.15);box-shadow:0 0 0 1px rgba(47,107,255,.2);}
.drawer-links a:hover{text-decoration:none;background:rgba(255,255,255,.09);}
.drawer-links svg{width:20px;height:20px;stroke:currentColor;flex:0 0 auto;}
.drawer-cta{margin-top:16px;}

/* ============ 页首横幅 ============ */
.page-hero{
  position:relative;
  margin-top:22px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background-color:var(--bg-1);
  background-image:
    linear-gradient(90deg,rgba(5,8,15,.94) 0%,rgba(5,8,15,.68) 52%,rgba(5,8,15,.42) 100%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center right;
  background-repeat:no-repeat;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.7;
}
.page-hero .wrap{position:relative;z-index:2;padding-top:64px;padding-bottom:64px;}
.crumbs{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px;}
.crumbs a{color:var(--text-2);}
.crumbs a:hover{color:var(--accent);}
.crumbs .sep{color:var(--text-3);opacity:.7;}
.crumbs .current{color:var(--text-1);}
.hero-tagline{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;border:1px solid rgba(34,211,197,.4);
  background:rgba(34,211,197,.08);color:var(--accent-2);
  font-size:12px;letter-spacing:.04em;margin-bottom:18px;
}
.page-title{
  font-size:clamp(30px,4.2vw,50px);
  line-height:1.16;
  font-weight:700;
  letter-spacing:-.01em;
  max-width:900px;
}
.page-title .hl{color:var(--accent);}
.hero-lead{
  margin-top:20px;
  max-width:760px;
  font-size:16px;
  line-height:1.9;
  color:var(--text-2);
}
.hero-metrics{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;
  margin-top:34px;
  max-width:840px;
}
.metric-strip{
  padding:16px 18px;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:rgba(10,17,32,.6);
  backdrop-filter:blur(12px);
}
.metric-strip .num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:26px;font-weight:700;letter-spacing:0;color:#fff;}
.metric-strip .num small{font-size:13px;color:var(--text-3);margin-left:4px;font-weight:500;}
.metric-strip .lab{font-size:13px;color:var(--text-3);margin-top:4px;}
.metric-strip .bar{height:3px;border-radius:3px;background:rgba(255,255,255,.08);margin-top:10px;overflow:hidden;}
.metric-strip .bar i{display:block;height:100%;border-radius:3px;background:linear-gradient(90deg,var(--brand),var(--accent-2));}

/* ============ 区块通用 ============ */
.section{padding:96px 0;position:relative;}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;color:var(--accent-2);margin-bottom:14px;}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent-2);display:inline-block;}
.h2{font-size:clamp(24px,2.6vw,32px);line-height:1.35;font-weight:700;letter-spacing:-.01em;}
.h3{font-size:22px;line-height:1.4;font-weight:600;}
.h4{font-size:18px;line-height:1.5;font-weight:600;}
.muted{color:var(--text-2);}
.small{font-size:14px;line-height:1.75;color:var(--text-3);}

/* ============ 长文布局 ============ */
.layout{
  display:grid;
  grid-template-columns:268px minmax(0,1fr);
  gap:52px;
  align-items:start;
}
.toc{position:sticky;top:96px;}
.toc-card{
  border:1px solid var(--line);border-radius:var(--r-md);
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  backdrop-filter:blur(12px);
  padding:20px;
  box-shadow:var(--shadow-card);
}
.toc-card h2{font-size:14px;letter-spacing:.1em;color:var(--text-3);font-weight:600;margin-bottom:14px;}
.toc-list{display:grid;gap:4px;}
.toc-list a{
  display:block;padding:9px 12px;border-radius:10px;border-left:2px solid transparent;
  font-size:14px;color:var(--text-2);transition:all .18s ease;
}
.toc-list a:hover{color:var(--text-1);background:rgba(255,255,255,.06);text-decoration:none;}
.toc-list a.active{
  color:#fff;background:rgba(47,107,255,.14);
  border-left-color:var(--accent);
  box-shadow:0 0 0 1px rgba(47,107,255,.35);
}
.toc-note{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;line-height:1.7;color:var(--text-3);
}

/* 长内容块 */
.block{padding-bottom:64px;}
.block + .block{border-top:1px solid var(--line);padding-top:64px;}
.block:last-child{padding-bottom:0;}
.block-head{display:flex;align-items:flex-start;gap:16px;margin-bottom:22px;}
.block-num{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:14px;color:var(--accent);letter-spacing:.06em;
  padding:6px 10px;border-radius:8px;border:1px solid rgba(255,61,127,.35);
  background:rgba(255,61,127,.08);flex:0 0 auto;margin-top:4px;
}
.block p + p{margin-top:16px;}
.block-lead{font-size:16px;line-height:1.9;color:var(--text-2);}

.point-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 20px;margin:26px 0;}
.point{
  display:flex;gap:10px;align-items:flex-start;
  padding:13px 15px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--glass);font-size:14px;line-height:1.7;color:var(--text-2);
  transition:border-color .18s ease,transform .18s ease,background .18s ease;
}
.point:hover{border-color:rgba(47,107,255,.35);background:rgba(255,255,255,.07);transform:translateY(-2px);}
.point::before{
  content:"";flex:0 0 auto;width:6px;height:6px;margin-top:8px;border-radius:2px;
  background:linear-gradient(135deg,var(--brand),var(--accent-2));
}

/* 工艺对照 */
.spec-list{display:grid;gap:14px;margin:26px 0;}
.spec{
  display:grid;grid-template-columns:180px minmax(0,1fr);gap:20px;
  padding:20px 22px;border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--glass);
  transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.spec:hover{border-color:rgba(47,107,255,.35);transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.spec-name{font-size:16px;font-weight:600;color:#fff;}
.spec-name span{display:block;font-size:12px;font-weight:400;color:var(--text-3);margin-top:6px;letter-spacing:.04em;}
.spec-rows{display:grid;gap:8px;}
.spec-row{display:grid;grid-template-columns:82px minmax(0,1fr);gap:12px;font-size:14px;line-height:1.7;}
.spec-row b{font-weight:500;color:var(--text-3);}
.spec-row span{color:var(--text-2);font-variant-numeric:tabular-nums;}

/* 流程步骤 */
.step-list{display:grid;gap:12px;margin-top:26px;counter-reset:step;}
.step{
  display:grid;grid-template-columns:56px minmax(0,1fr);gap:18px;align-items:start;
  padding:20px 22px;border:1px solid var(--line);border-radius:var(--r-md);
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  transition:border-color .18s ease,transform .18s ease;
}
.step:hover{border-color:rgba(34,211,197,.4);transform:translateX(3px);}
.step-num{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:22px;font-weight:700;color:var(--accent-2);line-height:1.3;
}
.step h4{margin-bottom:6px;}
.step p{font-size:14px;line-height:1.75;color:var(--text-2);}

/* 图文卡 */
.figure-card{
  margin-top:28px;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  background:var(--bg-2);box-shadow:var(--shadow-card);
}
.figure-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.figure-card figcaption{
  padding:14px 18px;font-size:13px;color:var(--text-3);
  border-top:1px solid var(--line);background:rgba(5,8,15,.4);
}

/* 口径条 */
.term-list{display:grid;gap:12px;margin-top:26px;}
.term{
  display:grid;grid-template-columns:132px minmax(0,1fr);gap:18px;align-items:start;
  padding:18px 22px;border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--glass);transition:border-color .18s ease,background .18s ease;
}
.term:hover{border-color:rgba(47,107,255,.35);background:rgba(255,255,255,.07);}
.term b{font-size:14px;color:#fff;font-weight:600;}
.term p{font-size:14px;line-height:1.75;color:var(--text-2);}

.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:999px;border:1px solid rgba(34,211,197,.35);
  background:rgba(34,211,197,.07);color:var(--accent-2);font-size:12px;
  transition:box-shadow .18s ease,border-color .18s ease;
}
.tag:hover{border-color:var(--accent-2);box-shadow:0 0 12px rgba(34,211,197,.3);}

/* 承诺网格 */
.promise-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:26px;}
.promise{
  padding:24px;border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--glass);position:relative;
  transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.promise:hover{border-color:rgba(47,107,255,.4);transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.promise::after{
  content:"";position:absolute;top:0;right:0;width:34px;height:34px;
  background:linear-gradient(225deg,rgba(47,107,255,.5),rgba(47,107,255,0) 70%);
  clip-path:polygon(100% 0,0 0,100% 100%);
}
.promise h4{margin-bottom:10px;}
.promise p{font-size:14px;line-height:1.78;color:var(--text-2);}
.promise .idx{font-family:var(--mono);font-size:12px;color:var(--text-3);letter-spacing:.1em;display:block;margin-bottom:8px;}

/* ============ 通用转化条 ============ */
.cta-band{padding:0 0 96px;}
.cta-panel{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:32px 36px;border:1px solid rgba(47,107,255,.3);border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(47,107,255,.16),rgba(255,61,127,.10) 70%,rgba(255,255,255,.03));
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  position:relative;overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--accent),var(--accent-2));
}
.cta-panel h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.4;}
.cta-panel p{margin-top:10px;font-size:14px;color:var(--text-2);max-width:620px;}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:64px 0 0;
  position:relative;
  background-image:radial-gradient(rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:22px 22px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--text-3);max-width:340px;}
.footer-col h4{font-size:14px;letter-spacing:.08em;color:var(--text-1);font-weight:600;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col li{font-size:14px;color:var(--text-3);line-height:1.7;}
.footer-col a{color:var(--text-3);}
.footer-col a:hover{color:var(--brand-soft);}
.qr-box{
  width:74px;height:74px;border-radius:14px;border:1px solid var(--line);
  background:var(--glass);display:flex;align-items:center;justify-content:center;color:var(--text-3);
}
.qr-cap{font-size:12px;color:var(--text-3);margin-top:10px;}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--line);
  padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;
  gap:14px;flex-wrap:wrap;font-size:13px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .wrap{padding:0 28px;}
  .site-header{padding:12px 28px 0;}
  .layout{grid-template-columns:236px minmax(0,1fr);gap:40px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-burger{display:inline-flex;}
  .nav-actions .btn-primary{display:none;}
  .section{padding:72px 0;}
  .layout{grid-template-columns:minmax(0,1fr);gap:36px;}
  .toc{position:static;}
  .toc-card{padding:16px;}
  .toc-list{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .spec{grid-template-columns:150px minmax(0,1fr);}
}
@media (max-width:767px){
  .wrap{padding:0 20px;}
  .site-header{padding:10px 20px 0;}
  .nav-panel{border-radius:16px;padding:9px 10px 9px 14px;}
  .nav-logo{font-size:15px;}
  .page-hero .wrap{padding-top:44px;padding-bottom:44px;}
  .hero-metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;}
  .section{padding:56px 0;}
  .point-grid,.promise-grid{grid-template-columns:minmax(0,1fr);}
  .spec,.term{grid-template-columns:minmax(0,1fr);gap:12px;}
  .step{grid-template-columns:44px minmax(0,1fr);gap:14px;padding:18px;}
  .cta-panel{padding:24px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .toc-list{grid-template-columns:minmax(0,1fr);}
}
@media (max-width:520px){
  .page-title{font-size:28px;}
  .hero-metrics{grid-template-columns:minmax(0,1fr);}
  .block{padding-bottom:48px;}
  .block + .block{padding-top:48px;}
}

/* roulang page: category2 */
:root{
  --bg-0:#05080F;
  --bg-1:#0A1120;
  --bg-2:#101A2E;
  --brand:#2F6BFF;
  --brand-soft:#5B8CFF;
  --accent:#FF3D7F;
  --accent-2:#22D3C5;
  --text-1:#EAF0FF;
  --text-2:#A6B3CC;
  --text-3:#6B7A99;
  --line:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.05);
  --ok:#2ED47A;
  --warn:#FFB020;
  --err:#FF5C5C;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --shadow-card:0 20px 40px rgba(0,0,0,.45);
  --shadow-glow:0 0 0 1px rgba(47,107,255,.45), 0 8px 30px rgba(47,107,255,.35);
  --mono:ui-monospace,"JetBrains Mono",SFMono-Regular,Menlo,Consolas,monospace;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.78;
  color:var(--text-1);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(rgba(255,255,255,.055) 1px, transparent 1px),
    radial-gradient(circle at 12% 8%, rgba(47,107,255,.16), transparent 46%),
    radial-gradient(circle at 88% 18%, rgba(255,61,127,.10), transparent 42%);
  background-size:22px 22px, auto, auto;
  background-attachment:fixed, fixed, fixed;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{list-style:none;padding:0}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand-soft);text-decoration:none;transition:color .2s ease-out,text-underline-offset .2s ease-out}
a:hover{color:var(--accent)}
button{font-family:inherit;cursor:pointer}
input,textarea,select{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
::selection{background:rgba(255,61,127,.35);color:#fff}

.container{max-width:1280px;margin:0 auto;padding:0 32px}
body .container{max-width:1280px;padding-left:32px;padding-right:32px}

.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:0}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:80;padding:12px 0 6px}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  padding:10px 14px 10px 18px;
  border-radius:20px;
  border:1px solid var(--line);
  background:rgba(10,17,32,.74);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:box-shadow .22s ease-out, background .22s ease-out, border-color .22s ease-out;
}
.nav-panel.is-scrolled{
  background:rgba(8,13,26,.9);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  box-shadow:0 18px 40px rgba(0,0,0,.5), inset 0 1px 0 rgba(255,255,255,.06);
  border-color:rgba(47,107,255,.28);
}
.nav-logo{
  display:flex;align-items:center;gap:10px;
  font-size:17px;font-weight:800;color:var(--text-1);letter-spacing:.01em;
  white-space:nowrap;
}
.nav-logo:hover{color:var(--text-1)}
.logo-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  box-shadow:0 6px 18px rgba(47,107,255,.35);
  flex:none;
}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-chip{
  position:relative;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 12px;border-radius:12px;
  font-size:14px;color:var(--text-2);
  border:1px solid transparent;
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
  white-space:nowrap;
}
.nav-chip svg{width:18px;height:18px;flex:none}
.nav-chip:hover{background:rgba(255,255,255,.06);color:var(--text-1);border-color:var(--line)}
.nav-chip.active{
  color:var(--text-1);
  background:rgba(47,107,255,.14);
  border-color:rgba(47,107,255,.45);
  box-shadow:0 0 0 1px rgba(47,107,255,.3), 0 8px 24px rgba(47,107,255,.22);
}
.nav-chip.active::before{
  content:"";position:absolute;left:12px;right:12px;top:-1px;height:2px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 10px var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-burger{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  background:var(--glass);border:1px solid var(--line);color:var(--text-1);
  transition:background .2s ease-out,border-color .2s ease-out;
}
.nav-burger:hover{background:rgba(255,255,255,.09);border-color:rgba(47,107,255,.4)}
.nav-drawer{display:none;margin-top:10px;padding:14px;border-radius:18px;border:1px solid var(--line);background:rgba(10,17,32,.96);backdrop-filter:blur(16px);}
.nav-drawer.is-open{display:block}
.nav-drawer a{
  display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:12px;
  color:var(--text-2);font-size:15px;border:1px solid transparent;
}
.nav-drawer a:hover{background:rgba(255,255,255,.06);color:var(--text-1);border-color:var(--line)}
.nav-drawer a.active{background:rgba(47,107,255,.14);border-color:rgba(47,107,255,.4);color:var(--text-1)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:12px;
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;text-decoration:none;white-space:nowrap;
  transition:transform .2s ease-out,box-shadow .2s ease-out,filter .2s ease-out,background .2s ease-out,border-color .2s ease-out;
}
.btn-primary{
  color:#fff;
  background:linear-gradient(120deg,var(--brand) 0%, #4B5BFF 52%, var(--accent) 100%);
  box-shadow:0 10px 26px rgba(47,107,255,.34);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);color:#fff;box-shadow:0 0 0 1px rgba(255,61,127,.4), 0 14px 34px rgba(255,61,127,.32)}
.btn-primary:active{transform:translateY(0);filter:brightness(.95)}
.btn-ghost{
  color:var(--text-1);background:var(--glass);border-color:var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.btn-ghost:hover{background:rgba(255,255,255,.09);border-color:var(--brand-soft);color:var(--text-1)}
.btn-sm{height:42px;padding:0 16px;font-size:14px;border-radius:11px}
.btn-block{width:100%}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;cursor:not-allowed;transform:none}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--brand-soft);text-decoration:none;
}
.text-link svg{width:18px;height:18px;transition:transform .2s ease-out}
.text-link:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px}
.text-link:hover svg{transform:translateX(3px)}

/* ============ 通用 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:999px;
  font-size:12px;line-height:1.4;color:var(--accent-2);
  border:1px solid rgba(34,211,197,.4);background:rgba(34,211,197,.08);
  transition:box-shadow .2s ease-out,border-color .2s ease-out;
}
.badge-pink{color:#FF86AF;border-color:rgba(255,61,127,.45);background:rgba(255,61,127,.10)}
.tag{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;
  font-size:12px;color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:border-color .2s ease-out,color .2s ease-out,box-shadow .2s ease-out;
}
.tag:hover{border-color:var(--brand-soft);color:var(--text-1);box-shadow:0 0 0 1px rgba(91,140,255,.3)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.18em;color:var(--accent-2);text-transform:uppercase;
}
.eyebrow::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,var(--accent-2),transparent)}
.sec{padding:96px 0}
.sec-alt{background:var(--bg-1)}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head h2{font-size:32px;line-height:1.35;font-weight:700;margin:14px 0 14px}
.sec-head p{color:var(--text-2);font-size:16px;line-height:1.85}
.glow-line{height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand),var(--accent),transparent)}
.card{
  border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06), var(--shadow-card);
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.card:hover{transform:translateY(-2px);border-color:rgba(47,107,255,.35);box-shadow:inset 0 1px 0 rgba(255,255,255,.06), var(--shadow-glow)}

.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--accent)}
.crumbs span[aria-current]{color:var(--text-1)}

/* ============ 页首横幅 ============ */
.page-hero{
  position:relative;overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background-position:center;
  background-size:cover;
  background-repeat:no-repeat;
  padding:52px 44px 46px;
  background-color:var(--bg-1);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:22px 22px;
  opacity:.6;
}
.page-hero .content{position:relative;z-index:2;max-width:820px}
.page-hero h1{
  font-size:clamp(30px,4.6vw,52px);line-height:1.15;font-weight:700;letter-spacing:-.01em;
  margin:18px 0 20px;
}
.page-hero h1 em{font-style:normal;color:var(--accent)}
.lead{
  position:relative;padding-left:16px;
  color:var(--text-2);font-size:16px;line-height:1.9;max-width:720px;
}
.lead::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--accent),rgba(255,61,127,.15));
  box-shadow:0 0 14px rgba(255,61,127,.55);
}
.hero-cta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:30px}
.hero-mini{display:flex;flex-wrap:wrap;gap:26px;margin-top:34px}
.mini{
  min-width:170px;padding-left:14px;border-left:1px solid var(--line);
}
.mini .n{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:24px;font-weight:700;color:var(--text-1)}
.mini .n small{font-size:13px;color:var(--text-3);margin-left:4px;font-weight:500}
.mini .l{font-size:13px;color:var(--text-3);margin-top:2px}
.mini .bar{height:2px;border-radius:2px;margin-top:8px;background:linear-gradient(90deg,var(--accent-2),rgba(34,211,197,0));position:relative}
.mini .bar i{position:absolute;left:0;top:0;bottom:0;border-radius:2px;background:linear-gradient(90deg,var(--brand),var(--accent-2));display:block}

/* ============ 指标看板 ============ */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.metric{
  position:relative;overflow:hidden;
  padding:26px 24px 24px;
  border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06), var(--shadow-card);
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.metric::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--accent),var(--accent-2));
}
.metric:hover{transform:translateY(-2px);border-color:rgba(47,107,255,.35);box-shadow:inset 0 1px 0 rgba(255,255,255,.06), var(--shadow-glow)}
.metric .num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:44px;font-weight:700;line-height:1.1;color:var(--text-1);transition:color .22s ease-out}
.metric:hover .num{color:#fff;text-shadow:0 0 22px rgba(91,140,255,.5)}
.metric .unit{font-size:15px;color:var(--text-3);margin-left:4px;font-weight:500}
.metric .label{font-size:15px;color:var(--text-1);margin-top:10px;font-weight:600}
.metric .meta{font-size:13px;color:var(--text-3);margin-top:6px}
.metric .track{height:3px;border-radius:3px;background:rgba(255,255,255,.08);margin-top:16px;overflow:hidden}
.metric .track i{display:block;height:100%;border-radius:3px;background:linear-gradient(90deg,var(--accent-2),var(--brand))}

/* ============ 案例错位瀑布 ============ */
.case-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:start}
.case-col{display:flex;flex-direction:column;gap:26px}
.case-col--offset{margin-top:56px}
.case-card{
  overflow:hidden;border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06), var(--shadow-card);
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.case-card:hover{transform:translateY(-2px);border-color:rgba(47,107,255,.35);box-shadow:inset 0 1px 0 rgba(255,255,255,.06), var(--shadow-glow)}
.case-media{position:relative;aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid var(--line);background:linear-gradient(140deg,var(--bg-2),var(--bg-1))}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease-out}
.case-card:hover .case-media img{transform:scale(1.04)}
.case-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,0) 42%, rgba(5,8,15,.86) 100%);
}
.case-media .badge{position:absolute;left:16px;top:16px;z-index:2;backdrop-filter:blur(8px)}
.case-media .shot{position:absolute;right:16px;bottom:14px;z-index:2;font-family:var(--mono);font-size:12px;color:var(--text-2);letter-spacing:.04em}
.case-body{padding:24px}
.case-body h3{font-size:21px;line-height:1.45;font-weight:600;margin-bottom:12px}
.case-body p{font-size:15px;color:var(--text-2);line-height:1.85}
.case-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:20px 0 18px;padding-top:18px;border-top:1px solid var(--line)}
.case-metrics .m .n{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:24px;font-weight:700;color:var(--accent)}
.case-metrics .m .n small{font-size:12px;color:var(--text-3);margin-left:3px;font-weight:500}
.case-metrics .m .l{font-size:12px;color:var(--text-3);margin-top:4px;line-height:1.5}

/* ============ 流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative}
.flow-step{position:relative;padding:26px 22px 24px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--glass);backdrop-filter:blur(12px);box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow-card);transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out}
.flow-step:hover{transform:translateY(-2px);border-color:rgba(47,107,255,.35);box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow-glow)}
.flow-step .idx{font-family:var(--mono);font-size:13px;color:var(--accent-2);letter-spacing:.08em}
.flow-step h3{font-size:19px;font-weight:600;margin:12px 0 10px}
.flow-step p{font-size:14px;color:var(--text-2);line-height:1.8}
.flow-step .dur{margin-top:16px;font-family:var(--mono);font-size:13px;color:var(--text-1);padding-top:14px;border-top:1px dashed var(--line)}
.flow-step .dur small{color:var(--text-3);font-weight:400;margin-left:4px}

/* ============ 验收标准 ============ */
.standard-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.standard{padding:28px 24px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--glass);backdrop-filter:blur(12px);box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow-card);transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out}
.standard:hover{transform:translateY(-2px);border-color:rgba(47,107,255,.35);box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow-glow)}
.standard .icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;color:var(--accent-2);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
}
.standard h3{font-size:19px;font-weight:600;margin:18px 0 10px}
.standard p{font-size:14px;color:var(--text-2);line-height:1.85}
.standard ul{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.standard li{position:relative;padding-left:16px;font-size:13px;color:var(--text-2)}
.standard li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;background:linear-gradient(135deg,var(--brand),var(--accent))}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 22px;align-items:start}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-md);background:var(--glass);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  overflow:hidden;transition:border-color .22s ease-out,background .22s ease-out,box-shadow .22s ease-out;
}
.faq-item:hover{border-color:rgba(47,107,255,.3)}
.faq-item.open{border-color:rgba(255,61,127,.42);background:rgba(255,255,255,.07);box-shadow:0 0 0 1px rgba(255,61,127,.22), inset 0 1px 0 rgba(255,255,255,.08)}
.faq-q{
  width:100%;display:flex;align-items:flex-start;gap:14px;
  padding:20px 22px;background:transparent;border:0;color:var(--text-1);
  font-size:16px;font-weight:600;text-align:left;line-height:1.65;
  position:relative;
}
.faq-q .no{font-family:var(--mono);font-size:13px;color:var(--accent);flex:none;padding-top:3px}
.faq-q .plus{
  margin-left:auto;flex:none;width:22px;height:22px;color:var(--text-3);
  transition:transform .22s ease-out,color .22s ease-out;
}
.faq-item.open .faq-q .plus{transform:rotate(45deg);color:var(--accent)}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;border-radius:2px;
  background:var(--accent);opacity:0;transition:opacity .22s ease-out;
  box-shadow:0 0 12px var(--accent);
}
.faq-item.open .faq-q::before{opacity:1}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out}
.faq-item.open .faq-a{max-height:520px}
.faq-a p{padding:0 22px 22px 58px;font-size:14px;color:var(--text-2);line-height:1.9}

/* ============ 转化表单 ============ */
.quote{display:grid;grid-template-columns:0.85fr 1.15fr;gap:34px;align-items:start}
.quote-info h2{font-size:32px;line-height:1.35;font-weight:700;margin:16px 0 16px}
.quote-info p{color:var(--text-2);font-size:15px;line-height:1.9}
.quote-points{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.quote-points li{display:flex;gap:12px;font-size:14px;color:var(--text-2)}
.quote-points svg{width:20px;height:20px;flex:none;color:var(--accent-2);margin-top:3px}
.form-card{
  position:relative;padding:30px 28px 28px;border:1px solid var(--line);border-radius:var(--r-md);
  background:rgba(16,26,46,.6);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow-card);
  clip-path:polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 0 100%);
}
.form-card::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,var(--brand),var(--accent),var(--accent-2))}
.form-card > .ticks{position:absolute;right:30px;top:12px;display:flex;gap:4px}
.form-card > .ticks i{display:block;width:6px;height:2px;background:rgba(255,255,255,.22);border-radius:2px}
.field{margin-bottom:18px}
.field > label{display:block;font-size:14px;color:var(--text-2);margin-bottom:8px}
.field .req{color:var(--accent);margin-left:4px}
.input,.textarea{
  width:100%;min-height:48px;padding:12px 14px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--text-1);font-size:15px;line-height:1.6;
  transition:border-color .2s ease-out,box-shadow .2s ease-out,background .2s ease-out;
}
.input::placeholder,.textarea::placeholder{color:var(--text-3)}
.input:focus,.textarea:focus{outline:none;border-color:var(--brand-soft);background:rgba(255,255,255,.07);box-shadow:0 0 0 3px rgba(91,140,255,.18)}
.textarea{min-height:104px;resize:vertical}
.chip-group{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  height:38px;padding:0 14px;border-radius:999px;font-size:13px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text-2);
  transition:all .2s ease-out;
}
.chip:hover{border-color:var(--brand-soft);color:var(--text-1)}
.chip.is-on{
  color:#fff;border-color:rgba(255,61,127,.6);background:rgba(255,61,127,.14);
  box-shadow:0 0 0 1px rgba(255,61,127,.35), 0 6px 18px rgba(255,61,127,.22);
}
.field-note{font-size:12px;color:var(--text-3);margin-top:10px}
.form-success{
  display:none;text-align:center;padding:34px 20px;
}
.form-success.is-on{display:block}
.form-success .ok-icon{width:52px;height:52px;margin:0 auto 16px;border-radius:50%;display:grid;place-items:center;background:rgba(46,212,122,.12);border:1px solid rgba(46,212,122,.45);color:var(--ok)}

/* ============ 通用转化条 ============ */
.cta-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:22px;
  padding:28px 30px;border-radius:var(--r-lg);border:1px solid var(--line);
  background:linear-gradient(110deg, rgba(47,107,255,.16), rgba(255,61,127,.12)), rgba(255,255,255,.05);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08), var(--shadow-card);
}
.cta-bar .txt{flex:1 1 340px}
.cta-bar strong{display:block;font-size:19px;font-weight:700;margin-bottom:6px}
.cta-bar span{font-size:14px;color:var(--text-2)}
.cta-bar .acts{display:flex;flex-wrap:wrap;align-items:center;gap:16px}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:40px;border-top:1px solid var(--line);
  background-color:var(--bg-1);
  background-image:radial-gradient(rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:22px 22px;
  padding:64px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px}
.footer-brand p{margin-top:18px;font-size:14px;color:var(--text-2);line-height:1.9;max-width:340px}
.footer-col h4{font-size:15px;font-weight:600;color:var(--text-1);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col li{font-size:14px;color:var(--text-2);line-height:1.7}
.footer-col a{color:var(--text-2);text-decoration:none}
.footer-col a:hover{color:var(--brand-soft);text-decoration:underline;text-underline-offset:4px}
.qr-box{
  width:74px;height:74px;border-radius:14px;display:grid;place-items:center;
  border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--accent-2);
}
.qr-cap{font-size:12px;color:var(--text-3);margin-top:8px}
.footer-bottom{
  margin-top:52px;padding:20px 0;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .nav-links{display:none}
  .nav-burger{display:flex}
  .nav-panel{padding:10px 12px 10px 16px}
}
@media (max-width:1024px){
  .sec{padding:72px 0}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .standard-grid{grid-template-columns:1fr}
  .quote{grid-template-columns:1fr}
  .case-col--offset{margin-top:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .page-hero{padding:44px 30px 40px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  body .container{padding-left:20px;padding-right:20px}
  .sec{padding:56px 0}
  .sec-head h2{font-size:26px}
  .case-grid{grid-template-columns:1fr}
  .case-col--offset{margin-top:0}
  .faq-grid{grid-template-columns:1fr}
  .page-hero{padding:34px 22px 32px;border-radius:20px}
  .page-hero h1{font-size:clamp(26px,7vw,34px)}
  .hero-mini{gap:18px}
  .mini{min-width:140px}
  .metric .num{font-size:36px}
  .case-body{padding:20px}
  .case-metrics{grid-template-columns:repeat(3,1fr);gap:8px}
  .case-metrics .m .n{font-size:20px}
  .faq-a p{padding-left:22px}
  .cta-bar{padding:22px}
  .quote-info h2{font-size:26px}
  .form-card{padding:24px 20px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
}
@media (max-width:520px){
  .metrics{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .case-metrics{grid-template-columns:repeat(2,1fr)}
  .hero-cta .btn{width:100%}
  .cta-bar .acts{width:100%}
  .cta-bar .acts .btn{width:100%}
}

/* roulang page: category4 */
:root{
  --bg-0:#05080F; --bg-1:#0A1120; --bg-2:#101A2E;
  --brand:#2F6BFF; --brand-soft:#5B8CFF;
  --accent:#FF3D7F; --accent-2:#22D3C5;
  --text-1:#EAF0FF; --text-2:#A6B3CC; --text-3:#6B7A99;
  --line:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.05);
  --ok:#2ED47A; --warn:#FFB020; --err:#FF5C5C;
  --r-lg:24px; --r-md:18px; --r-sm:12px;
  --shadow-card:0 20px 40px rgba(0,0,0,.45);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  background-color:var(--bg-0);
  background-image:
    radial-gradient(circle at 10% 6%, rgba(47,107,255,.10), transparent 42%),
    radial-gradient(circle at 90% 2%, rgba(255,61,127,.08), transparent 36%),
    radial-gradient(rgba(255,255,255,.055) 1px, transparent 1px);
  background-size:auto,auto,22px 22px;
  background-attachment:fixed,fixed,fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--brand-soft);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul{list-style:none;padding:0}
button,input,textarea,select{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
@media (max-width:768px){.container{padding:0 20px}}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;padding:12px 0}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  padding:10px 14px;
  border-radius:20px;
  border:1px solid var(--line);
  background:linear-gradient(180deg, rgba(16,26,46,.88), rgba(10,17,32,.80));
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  box-shadow:0 12px 30px rgba(0,0,0,.35), inset 0 1px 0 rgba(255,255,255,.06);
  transition:box-shadow .2s ease, border-color .2s ease;
}
.site-header.scrolled .nav-panel{
  box-shadow:0 18px 44px rgba(0,0,0,.55), 0 0 0 1px rgba(47,107,255,.18), inset 0 1px 0 rgba(255,255,255,.08);
  border-color:rgba(91,140,255,.22);
}
.nav-logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:800;letter-spacing:-.01em;
  color:var(--text-1);white-space:nowrap;
}
.nav-logo:hover{color:#fff}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  box-shadow:0 6px 16px rgba(47,107,255,.40);
  flex:0 0 auto;
}
.nav-links{display:flex;align-items:center;gap:6px;flex:1;justify-content:center;flex-wrap:wrap}
.nav-chip{
  position:relative;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 12px;border-radius:12px;
  border:1px solid transparent;
  color:var(--text-2);font-size:14px;font-weight:500;white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.nav-chip svg{width:18px;height:18px;flex:0 0 auto}
.nav-chip:hover{background:rgba(255,255,255,.07);color:var(--text-1)}
.nav-chip::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand-soft),var(--accent-2));
  opacity:0;transform:scaleX(.4);transition:opacity .2s ease,transform .2s ease;
}
.nav-chip:hover::after{opacity:.75;transform:scaleX(1)}
.nav-chip.active{
  color:#fff;background:rgba(47,107,255,.16);
  border-color:rgba(91,140,255,.45);
  box-shadow:0 0 0 1px rgba(47,107,255,.14), 0 6px 18px rgba(47,107,255,.22);
}
.nav-chip.active::after{opacity:1;transform:scaleX(1);background:var(--accent)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-burger{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid var(--line);background:var(--glass);
  color:var(--text-1);cursor:pointer;transition:background .2s ease,border-color .2s ease;
}
.nav-burger:hover{background:rgba(255,255,255,.09);border-color:var(--brand-soft)}
.mobile-drawer{
  display:none;margin-top:10px;padding:14px;
  border-radius:18px;border:1px solid var(--line);
  background:rgba(10,17,32,.97);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  box-shadow:0 20px 40px rgba(0,0,0,.5);
}
.mobile-drawer.open{display:grid;gap:6px}
.mobile-drawer a{padding:12px 14px;border-radius:12px;color:var(--text-2);font-size:15px;border:1px solid transparent}
.mobile-drawer a:hover{background:rgba(255,255,255,.06);color:var(--text-1)}
.mobile-drawer a.active{background:rgba(47,107,255,.16);color:#fff;border-color:rgba(91,140,255,.42)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:12px;
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease-out, box-shadow .2s ease-out, background .2s ease-out, border-color .2s ease-out, filter .2s ease-out;
}
.btn svg{width:20px;height:20px}
.btn-primary{
  color:#fff;background:linear-gradient(120deg,var(--brand),var(--accent));
  box-shadow:0 8px 24px rgba(47,107,255,.35), inset 0 1px 0 rgba(255,255,255,.18);
}
.btn-primary:hover{color:#fff;transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 14px 34px rgba(255,61,127,.38), 0 0 0 1px rgba(255,255,255,.12)}
.btn-primary:active{transform:translateY(0);filter:brightness(.95)}
.btn-ghost{
  color:var(--text-1);background:var(--glass);border-color:var(--line);
}
.btn-ghost:hover{color:#fff;background:rgba(255,255,255,.09);border-color:var(--brand-soft)}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-soft);
}
.link-arrow svg{width:18px;height:18px;transition:transform .2s ease}
.link-arrow:hover{color:var(--accent)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-alt{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
@media (max-width:1024px){.section{padding:72px 0}}
@media (max-width:640px){.section{padding:56px 0}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--accent-2);text-transform:uppercase;
}
.eyebrow::before{content:"";width:20px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--accent),var(--accent-2))}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{
  font-size:32px;line-height:1.35;font-weight:700;letter-spacing:-.01em;
  margin:12px 0 14px;color:#fff;
}
.section-head p{color:var(--text-2);font-size:15.5px;line-height:1.9}
@media (max-width:768px){.section-head h2{font-size:25px}}

/* ---------- 引导条 ---------- */
.guide-bar{
  position:relative;padding:40px 0 56px;
  border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(90deg, rgba(5,8,15,.94) 0%, rgba(10,17,32,.82) 52%, rgba(16,26,46,.58) 100%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover,cover;
  background-position:center,center;
  background-repeat:no-repeat,no-repeat;
}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--text-3);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--brand-soft)}
.breadcrumb span[aria-current]{color:var(--text-3)}
.guide-grid{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(0,1fr);gap:36px;align-items:start}
.guide-bar h1{
  font-size:clamp(28px,3.6vw,44px);line-height:1.22;font-weight:700;
  letter-spacing:-.01em;color:#fff;margin:14px 0 16px;
}
.guide-lead{color:var(--text-2);font-size:16px;line-height:1.9;max-width:720px}
.guide-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.045);
  font-size:12px;color:var(--text-2);letter-spacing:.02em;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.tag:hover{border-color:rgba(34,211,197,.55);color:#fff;background:rgba(34,211,197,.10)}
.guide-aside{
  padding:24px;border-radius:var(--r-lg);
  border:1px solid var(--line);background:var(--glass);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  position:relative;overflow:hidden;
}
.guide-aside::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,var(--brand),var(--accent),var(--accent-2))}
.guide-aside h3{font-size:16px;font-weight:600;color:#fff;margin-bottom:8px}
.guide-aside p{font-size:13.5px;color:var(--text-3);line-height:1.8;margin-bottom:16px}
.search-box{
  display:flex;align-items:center;gap:10px;height:52px;padding:0 16px;
  border-radius:14px;border:1px solid var(--line);background:rgba(5,8,15,.55);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{border-color:var(--brand-soft);box-shadow:0 0 0 3px rgba(47,107,255,.18)}
.search-box svg{width:20px;height:20px;color:var(--text-3);flex:0 0 auto}
.search-box input{flex:1;height:100%;background:transparent;border:0;outline:none;color:var(--text-1);font-size:15px}
.search-box input::placeholder{color:var(--text-3)}
.search-hint{margin-top:12px;font-size:12.5px;color:var(--text-3);line-height:1.7}

/* ---------- 指标条 ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.stat-card{
  position:relative;padding:24px;border-radius:var(--r-md);
  border:1px solid var(--line);background:var(--glass);
  overflow:hidden;transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.stat-card::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,var(--brand),var(--accent-2))}
.stat-card:hover{transform:translateY(-2px);border-color:rgba(47,107,255,.35);box-shadow:0 0 0 1px rgba(47,107,255,.45), 0 8px 30px rgba(47,107,255,.35)}
.stat-num{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:40px;font-weight:700;letter-spacing:0;color:#fff;line-height:1.1;
  transition:color .2s ease,text-shadow .2s ease;
}
.stat-card:hover .stat-num{color:#fff;text-shadow:0 0 22px rgba(91,140,255,.55)}
.stat-unit{font-size:16px;font-weight:500;color:var(--text-3);margin-left:6px}
.stat-label{margin-top:10px;font-size:15px;font-weight:600;color:var(--text-1)}
.stat-meta{margin-top:6px;font-size:12.5px;color:var(--text-3);line-height:1.7}
.stat-bar{margin-top:16px;height:4px;border-radius:4px;background:rgba(255,255,255,.08);overflow:hidden}
.stat-bar i{display:block;height:100%;border-radius:4px;background:linear-gradient(90deg,var(--brand),var(--accent-2))}
@media (max-width:900px){.stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.stat-strip{grid-template-columns:1fr}}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:960px;margin:0 auto}
.faq-item{
  position:relative;border-radius:var(--r-md);border:1px solid var(--line);
  background:rgba(255,255,255,.04);overflow:hidden;
  transition:border-color .2s ease,background .2s ease;
}
.faq-item:hover{border-color:rgba(91,140,255,.30)}
.faq-item.open{background:rgba(255,255,255,.075);border-color:rgba(91,140,255,.38)}
.faq-item.open::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;
  background:var(--accent);box-shadow:0 0 14px var(--accent);
}
.faq-q{
  display:flex;align-items:center;gap:16px;width:100%;
  padding:20px 24px;border:0;background:none;text-align:left;
  color:var(--text-1);font-size:17px;font-weight:600;line-height:1.6;cursor:pointer;
}
.faq-q:hover{color:#fff}
.faq-num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:14px;color:var(--text-3);flex:0 0 auto}
.faq-icon{margin-left:auto;flex:0 0 auto;color:var(--text-3);transition:transform .25s ease,color .25s ease}
.faq-icon svg{width:20px;height:20px;display:block}
.faq-item.open .faq-icon{transform:rotate(45deg);color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 24px 22px 62px;color:var(--text-2);font-size:15px;line-height:1.9}
.faq-a-inner b{color:var(--text-1);font-weight:600}
@media (max-width:640px){
  .faq-q{padding:18px 16px;font-size:15.5px;gap:12px}
  .faq-a-inner{padding:0 16px 20px 44px;font-size:14.5px}
}

/* ---------- 资源清单 ---------- */
.resource-layout{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:24px;align-items:start}
.resource-feature{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-2);
  box-shadow:var(--shadow-card);
}
.resource-feature img{width:100%;aspect-ratio:16/10;object-fit:cover;opacity:.85}
.resource-feature-body{
  padding:24px;background:linear-gradient(180deg, rgba(10,17,32,.9), rgba(5,8,15,.98));
}
.resource-feature-body h3{font-size:20px;font-weight:600;color:#fff;margin-bottom:10px;line-height:1.5}
.resource-feature-body p{font-size:14px;color:var(--text-2);line-height:1.85;margin-bottom:18px}
.resource-feature-body ul{display:grid;gap:8px;margin-bottom:20px}
.resource-feature-body li{display:flex;gap:10px;font-size:13.5px;color:var(--text-2);line-height:1.7}
.resource-feature-body li svg{width:18px;height:18px;flex:0 0 auto;color:var(--accent-2);margin-top:3px}
.res-list{display:grid;gap:14px}
.res-row{
  display:flex;align-items:center;gap:18px;
  padding:20px 22px;border-radius:var(--r-md);
  border:1px solid var(--line);background:rgba(255,255,255,.035);
  transition:transform .2s ease-out,border-color .2s ease-out,background .2s ease-out,box-shadow .2s ease-out;
}
.res-row:hover{
  transform:translateY(-2px);background:rgba(255,255,255,.07);
  border-color:rgba(47,107,255,.35);
  box-shadow:0 0 0 1px rgba(47,107,255,.45), 0 8px 30px rgba(47,107,255,.35);
}
.res-ico{
  flex:0 0 auto;width:44px;height:44px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);color:var(--brand-soft);
}
.res-ico svg{width:22px;height:22px}
.res-main{flex:1;min-width:0}
.res-main h3{font-size:16px;font-weight:600;color:var(--text-1);margin-bottom:4px}
.res-main p{font-size:13.5px;color:var(--text-3);line-height:1.75}
.res-side{flex:0 0 auto;display:flex;align-items:center;gap:12px}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.05);
  font-size:12px;color:var(--text-2);white-space:nowrap;
  transition:border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.res-row:hover .badge{border-color:rgba(34,211,197,.5);color:#fff;box-shadow:0 0 12px rgba(34,211,197,.25)}
@media (max-width:1024px){
  .resource-layout{grid-template-columns:1fr}
}
@media (max-width:640px){
  .res-row{flex-direction:column;align-items:flex-start;gap:14px}
  .res-side{width:100%;justify-content:space-between}
}

/* ---------- 支持渠道 ---------- */
.support-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.support-card{
  position:relative;padding:26px;border-radius:var(--r-md);
  border:1px solid var(--line);background:var(--glass);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.support-card:hover{transform:translateY(-2px);border-color:rgba(47,107,255,.35);box-shadow:0 0 0 1px rgba(47,107,255,.45), 0 8px 30px rgba(47,107,255,.35)}
.support-card::after{
  content:"";position:absolute;right:0;top:0;width:26px;height:26px;
  background:linear-gradient(225deg, rgba(47,107,255,.55), transparent 62%);
  clip-path:polygon(100% 0,0 0,100% 100%);
}
.support-card .res-ico{margin-bottom:16px}
.support-card h3{font-size:18px;font-weight:600;color:#fff;margin-bottom:10px}
.support-card p{font-size:14px;color:var(--text-2);line-height:1.85}
.support-card .meta{margin-top:14px;font-size:12.5px;color:var(--text-3);font-family:var(--font-mono)}
@media (max-width:900px){.support-grid{grid-template-columns:1fr}}

/* ---------- 转化条 ---------- */
.cta-section{padding:72px 0 88px}
.cta-panel{
  position:relative;display:grid;grid-template-columns:minmax(0,1.6fr) auto;gap:28px;align-items:center;
  padding:34px;border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(120deg, rgba(47,107,255,.18), rgba(255,61,127,.12) 58%, rgba(255,255,255,.04));
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);overflow:hidden;
}
.cta-panel::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,var(--brand),var(--accent),var(--accent-2))}
.cta-panel h2{font-size:26px;line-height:1.4;font-weight:700;color:#fff;margin-bottom:10px}
.cta-panel p{font-size:15px;color:var(--text-2);line-height:1.85;max-width:660px}
.cta-actions{display:flex;flex-direction:column;align-items:flex-start;gap:12px}
@media (max-width:900px){
  .cta-panel{grid-template-columns:1fr;padding:26px}
  .cta-actions{flex-direction:row;flex-wrap:wrap;align-items:center}
}

/* ---------- 页脚 ---------- */
.site-footer{
  background-color:rgba(5,8,15,.94);
  border-top:1px solid var(--line);
  padding:72px 0 0;
  background-image:radial-gradient(rgba(255,255,255,.045) 1px, transparent 1px);
  background-size:22px 22px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand p{margin-top:16px;font-size:13.5px;color:var(--text-3);line-height:1.9;max-width:360px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:13.5px;color:var(--text-2)}
.footer-col a:hover{color:var(--brand-soft)}
.footer-contact li{font-size:13.5px;color:var(--text-2);line-height:1.8}
.qr-box{
  width:64px;height:64px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--glass);color:var(--brand-soft);
}
.qr-cap{margin-top:10px;font-size:12.5px;color:var(--text-3)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  margin-top:48px;padding:20px 0;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--text-3);
}
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:600px){
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:6px}
}

/* ---------- 响应式导航 ---------- */
@media (max-width:1080px){
  .nav-links{display:none}
  .nav-burger{display:inline-flex}
}
@media (max-width:640px){
  .nav-actions .btn-primary{display:none}
  .guide-grid{grid-template-columns:1fr;gap:26px}
}

/* roulang page: category3 */
/* ================= 设计变量 ================= */
:root{
  --bg-0:#05080F;
  --bg-1:#0A1120;
  --bg-2:#101A2E;
  --brand:#2F6BFF;
  --brand-soft:#5B8CFF;
  --accent:#FF3D7F;
  --accent-2:#22D3C5;
  --text-1:#EAF0FF;
  --text-2:#A6B3CC;
  --text-3:#6B7A99;
  --line:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.05);
  --glass-2:rgba(255,255,255,.09);
  --ok:#2ED47A;
  --warn:#FFB020;
  --err:#FF5C5C;
  --r-xl:28px;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --shadow-in:inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-out:0 20px 40px rgba(0,0,0,.45);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
}

/* ================= 基础 reset ================= */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:radial-gradient(rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:22px 22px;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand-soft);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}

/* ================= 容器与版块节奏 ================= */
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px;position:relative;z-index:1;}
main{position:relative;z-index:1;}
.sec{padding:96px 0;}
.sec-tight{padding:72px 0;}
.band-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;
  color:var(--accent-2);font-family:var(--font-mono);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand),var(--accent-2));}
.sec-title{font-size:32px;line-height:1.35;margin-bottom:16px;}
.sec-desc{color:var(--text-2);font-size:16px;line-height:1.85;}
.section-divider{height:1px;background:var(--line);}

/* ================= 顶部导航 ================= */
.site-header{position:sticky;top:12px;z-index:60;padding:0 32px;margin-top:12px;}
.nav-panel{
  position:relative;max-width:1280px;margin:0 auto;display:flex;align-items:center;gap:18px;
  background:rgba(10,17,32,.74);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--line);border-radius:20px;padding:10px 14px;
  box-shadow:var(--shadow-in);transition:box-shadow .2s ease-out,background .2s ease-out;
}
.site-header.is-scrolled .nav-panel{
  background:rgba(8,14,26,.9);
  box-shadow:var(--shadow-in),0 20px 40px rgba(0,0,0,.5);
}
.nav-logo{
  display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;
  color:var(--text-1);text-decoration:none;white-space:nowrap;letter-spacing:.01em;
}
.nav-logo:hover{color:var(--text-1);text-decoration:none;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  box-shadow:0 6px 18px rgba(47,107,255,.42);
}
.nav-links{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;flex:1 1 auto;}
.nav-links::-webkit-scrollbar{display:none;}
.nav-chip{
  position:relative;display:inline-flex;align-items:center;gap:6px;padding:9px 12px;border-radius:12px;
  border:1px solid transparent;color:var(--text-2);font-size:14px;line-height:1;white-space:nowrap;
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.nav-chip svg{width:18px;height:18px;flex:0 0 auto;}
.nav-chip:hover{background:var(--glass);border-color:var(--line);color:var(--text-1);text-decoration:none;}
.nav-chip:hover::after{
  content:"";position:absolute;left:10px;right:10px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--accent-2));box-shadow:0 0 10px rgba(34,211,197,.6);
}
.nav-chip.active{
  color:var(--text-1);background:var(--glass);border-color:rgba(47,107,255,.5);
  box-shadow:0 0 0 1px rgba(47,107,255,.25),0 8px 24px rgba(47,107,255,.22);
}
.nav-chip.active::before{
  content:"";position:absolute;left:12px;right:12px;top:-1px;height:2px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 12px rgba(255,61,127,.85);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-burger{
  display:none;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:var(--glass);color:var(--text-2);
  transition:background .2s ease-out,color .2s ease-out;
}
.nav-burger:hover{background:var(--glass-2);color:var(--text-1);}
.nav-drawer{display:none;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 14px;border-radius:12px;
  color:var(--text-2);font-size:15px;border:1px solid transparent;
}
.drawer-link:hover{background:var(--glass);border-color:var(--line);color:var(--text-1);text-decoration:none;}
.drawer-link.active{color:var(--text-1);background:var(--glass);border-color:rgba(47,107,255,.45);}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 22px;
  border-radius:12px;font-size:15px;font-weight:600;line-height:1;text-decoration:none;white-space:nowrap;
  border:1px solid transparent;transition:transform .18s ease-out,box-shadow .2s ease-out,background .2s ease-out,border-color .2s ease-out,opacity .2s ease-out;
}
.btn:hover{text-decoration:none;}
.btn-primary{
  color:#fff;background:linear-gradient(120deg,var(--brand) 0%,#4A5BFF 55%,var(--accent) 100%);
  box-shadow:0 8px 26px rgba(47,107,255,.38);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 12px 34px rgba(47,107,255,.5);color:#fff;}
.btn-primary:active{transform:translateY(0);filter:brightness(.95);}
.btn-primary[disabled],.btn-primary.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-ghost{
  color:var(--text-1);background:var(--glass);border-color:var(--line);
}
.btn-ghost:hover{background:var(--glass-2);border-color:var(--brand-soft);color:var(--text-1);transform:translateY(-1px);}
.btn-link{
  height:auto;padding:6px 0;color:var(--brand-soft);background:none;font-weight:600;
}
.btn-link svg{width:18px;height:18px;transition:transform .2s ease-out;}
.btn-link:hover{color:var(--accent);transform:none;background:none;text-decoration:none;}
.btn-link:hover svg{transform:translateX(3px);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}

/* ================= 徽章与标签 ================= */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  font-size:12px;line-height:1.6;color:var(--text-2);border:1px solid var(--line);background:var(--glass);
}
.badge-accent{color:#FFD6E6;border-color:rgba(255,61,127,.42);background:rgba(255,61,127,.12);}
.badge-cyan{color:#B9F5EF;border-color:rgba(34,211,197,.4);background:rgba(34,211,197,.1);}
.tag{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;font-size:12px;
  color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:border-color .2s ease-out,color .2s ease-out;
}
.tag:hover{border-color:rgba(34,211,197,.5);color:var(--accent-2);}

/* ================= 页首横幅 ================= */
.page-hero{
  position:relative;overflow:hidden;border-radius:var(--r-xl);border:1px solid var(--line);margin-top:24px;
  background-image:
    linear-gradient(100deg,rgba(5,8,15,.95) 0%,rgba(5,8,15,.76) 46%,rgba(5,8,15,.4) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  box-shadow:var(--shadow-in),var(--shadow-out);
}
.page-hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,107,255,.28),transparent 68%);pointer-events:none;
}
.hero-inner{padding:64px 56px 56px;max-width:860px;position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px;}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--accent);}
.hero-title{
  font-size:clamp(30px,4.4vw,50px);line-height:1.16;margin:14px 0 16px;font-weight:700;
}
.hero-sub{font-size:17px;color:var(--text-2);max-width:640px;line-height:1.85;}
.hero-cta{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-top:30px;}
.micro-list{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:40px;
  padding-top:26px;border-top:1px solid var(--line);
}
.micro-list li{display:flex;flex-direction:column;gap:4px;}
.m-val{font-family:var(--font-mono);font-size:26px;font-weight:600;color:var(--text-1);letter-spacing:0;display:flex;align-items:baseline;gap:6px;}
.m-unit{font-size:13px;color:var(--text-3);font-family:var(--font-cn);}
.m-label{font-size:13px;color:var(--text-2);}
.m-bar{display:block;height:3px;border-radius:3px;background:rgba(255,255,255,.09);overflow:hidden;margin-top:8px;}
.m-bar i{display:block;height:100%;border-radius:3px;background:linear-gradient(90deg,var(--brand),var(--accent-2));}

/* ================= 卡片 ================= */
.card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--shadow-in);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out,background .2s ease-out;
}
.card:hover{
  transform:translateY(-2px);border-color:rgba(47,107,255,.35);background:rgba(255,255,255,.065);
  box-shadow:var(--shadow-in),0 0 0 1px rgba(47,107,255,.45),0 8px 30px rgba(47,107,255,.3);
}
.card h3{font-size:19px;line-height:1.5;margin-bottom:10px;}
.card p{color:var(--text-2);font-size:14.5px;line-height:1.85;}
.card-cut{clip-path:polygon(0 0,calc(100% - 26px) 0,100% 26px,100% 100%,0 100%);border-radius:0 0 var(--r-md) var(--r-md);}

/* ================= 行业分区与时间线 ================= */
.ind-block{margin-top:64px;}
.ind-block:first-of-type{margin-top:0;}
.ind-head{
  display:grid;grid-template-columns:auto 1fr 168px;gap:24px;align-items:center;
  padding:22px 24px;border:1px solid var(--line);border-radius:var(--r-md);
  background:linear-gradient(120deg,rgba(47,107,255,.12),rgba(255,255,255,.03) 60%);
  box-shadow:var(--shadow-in);
}
.ind-no{
  font-family:var(--font-mono);font-size:15px;font-weight:600;color:var(--accent-2);
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;
  border:1px solid rgba(34,211,197,.35);background:rgba(34,211,197,.08);
}
.ind-head h3{font-size:21px;line-height:1.4;margin-bottom:6px;}
.ind-head p{color:var(--text-2);font-size:14.5px;line-height:1.8;}
.ind-thumb{width:168px;aspect-ratio:16/9;border-radius:14px;overflow:hidden;border:1px solid var(--line);}
.ind-thumb img{width:100%;height:100%;object-fit:cover;}

.tl-rail{margin-top:26px;overflow-x:auto;padding:6px 4px 24px;scroll-snap-type:x proximity;}
.tl-rail::-webkit-scrollbar{height:6px;}
.tl-rail::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:99px;}
.tl-rail::-webkit-scrollbar-track{background:transparent;}
.tl-track{display:flex;gap:20px;min-width:max-content;position:relative;padding-top:4px;}
.tl-track::before{
  content:"";position:absolute;left:6px;right:40px;top:30px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand) 0%,var(--accent-2) 55%,rgba(255,61,127,.75) 100%);
  opacity:.6;
}
.tl-node{width:272px;flex:0 0 auto;display:flex;flex-direction:column;scroll-snap-align:start;}
.tl-dot{
  position:relative;z-index:2;width:52px;height:52px;border-radius:14px;display:grid;place-items:center;
  font-family:var(--font-mono);font-size:15px;font-weight:600;color:var(--text-1);
  background:linear-gradient(160deg,rgba(47,107,255,.42),rgba(6,10,20,.96));
  border:1px solid rgba(47,107,255,.5);
  box-shadow:0 0 0 7px rgba(5,8,15,.92),0 10px 24px rgba(47,107,255,.26);
}
.tl-card{
  margin-top:20px;flex:1;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px;box-shadow:var(--shadow-in);display:flex;flex-direction:column;gap:10px;
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.tl-card:hover{
  transform:translateY(-2px);border-color:rgba(47,107,255,.35);
  box-shadow:var(--shadow-in),0 0 0 1px rgba(47,107,255,.45),0 8px 30px rgba(47,107,255,.3);
}
.tl-card h4{font-size:17px;font-weight:600;line-height:1.5;}
.tl-card p{color:var(--text-2);font-size:14px;line-height:1.8;flex:1;}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;}

/* ================= 图文要点 ================= */
.split{display:grid;grid-template-columns:0.95fr 1.05fr;gap:48px;align-items:center;}
.figure{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);position:relative;}
.figure img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.figure figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 18px;font-size:12.5px;color:var(--text-2);
  background:linear-gradient(180deg,transparent,rgba(5,8,15,.92));
}
.point-list{display:grid;gap:16px;margin-top:26px;}
.point-item{
  display:grid;grid-template-columns:36px 1fr;gap:16px;padding:18px 20px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:rgba(255,255,255,.035);
  transition:border-color .2s ease-out,background .2s ease-out,transform .2s ease-out;
}
.point-item:hover{border-color:rgba(47,107,255,.35);background:rgba(255,255,255,.06);transform:translateX(3px);}
.point-ico{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;color:var(--accent-2);
  border:1px solid rgba(34,211,197,.32);background:rgba(34,211,197,.08);
}
.point-ico svg{width:20px;height:20px;}
.point-item h4{font-size:16px;font-weight:600;margin-bottom:6px;}
.point-item p{font-size:14px;color:var(--text-2);line-height:1.8;}

/* ================= 对比面板 ================= */
.compare{
  display:grid;grid-template-columns:1fr 56px 1fr;gap:0;align-items:stretch;
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:var(--bg-1);
  box-shadow:var(--shadow-in);
}
.cmp-col{padding:28px 26px;}
.cmp-before{background:linear-gradient(180deg,rgba(255,255,255,.02),rgba(255,255,255,.01));filter:saturate(.55);}
.cmp-after{background:linear-gradient(180deg,rgba(47,107,255,.14),rgba(255,61,127,.07));}
.cmp-col header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px;}
.cmp-col h3{font-size:18px;font-weight:600;}
.cmp-row{display:flex;align-items:baseline;justify-content:space-between;gap:12px;font-size:14px;color:var(--text-2);}
.cmp-row b{font-family:var(--font-mono);font-size:20px;font-weight:600;color:var(--text-1);letter-spacing:0;}
.cmp-list li{padding:12px 0;border-bottom:1px dashed rgba(255,255,255,.08);}
.cmp-list li:last-child{border-bottom:0;}
.bar{height:6px;border-radius:6px;background:rgba(255,255,255,.08);overflow:hidden;margin-top:10px;}
.bar i{display:block;height:100%;border-radius:6px;background:rgba(166,179,204,.5);}
.cmp-after .bar i{background:linear-gradient(90deg,var(--brand),var(--accent));box-shadow:0 0 14px rgba(255,61,127,.5);}
.cmp-mid{
  display:grid;place-items:center;border-left:1px solid var(--line);border-right:1px solid var(--line);
  background:rgba(255,255,255,.02);color:var(--accent);
}
.cmp-mid svg{width:28px;height:28px;}
.cmp-note{margin-top:22px;font-size:13px;color:var(--text-3);}

/* ================= 指标看板 ================= */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.stat{
  position:relative;padding:26px 22px 22px;background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--shadow-in);overflow:hidden;
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.stat::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--accent-2),var(--accent));
}
.stat:hover{transform:translateY(-2px);border-color:rgba(47,107,255,.35);box-shadow:var(--shadow-in),0 8px 30px rgba(47,107,255,.28);}
.stat-num{font-family:var(--font-mono);font-size:42px;font-weight:600;line-height:1.1;color:var(--text-1);display:flex;align-items:baseline;gap:6px;}
.stat:hover .stat-num{color:#fff;text-shadow:0 0 22px rgba(47,107,255,.65);}
.stat-unit{font-size:14px;color:var(--text-3);font-family:var(--font-cn);}
.stat-label{font-size:14px;color:var(--text-2);margin-top:10px;}
.stat-meta{font-size:12.5px;color:var(--text-3);margin-top:6px;}
.stat-line{height:3px;border-radius:3px;background:rgba(255,255,255,.08);margin-top:14px;overflow:hidden;}
.stat-line i{display:block;height:100%;border-radius:3px;background:linear-gradient(90deg,var(--accent-2),var(--brand));}

/* ================= FAQ ================= */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-md);background:var(--glass);overflow:hidden;
  box-shadow:var(--shadow-in);transition:border-color .2s ease-out,background .2s ease-out;
}
.faq-item.open{border-color:rgba(255,61,127,.4);background:rgba(255,255,255,.075);}
.faq-h{margin:0;}
.faq-q{
  width:100%;display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center;
  padding:20px 22px;text-align:left;color:var(--text-1);font-size:16px;font-weight:600;line-height:1.6;
}
.faq-no{font-family:var(--font-mono);font-size:13px;color:var(--text-3);}
.faq-item.open .faq-no{color:var(--accent);}
.faq-ico{
  width:26px;height:26px;border-radius:8px;display:grid;place-items:center;flex:0 0 auto;
  border:1px solid var(--line);color:var(--text-2);transition:transform .22s ease-out,color .22s ease-out,border-color .22s ease-out;
}
.faq-ico svg{width:16px;height:16px;}
.faq-item.open .faq-ico{transform:rotate(45deg);color:var(--accent);border-color:rgba(255,61,127,.45);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out;}
.faq-item.open .faq-a{max-height:460px;}
.faq-a p{
  padding:0 22px 22px 56px;color:var(--text-2);font-size:14.5px;line-height:1.9;
  border-left:2px solid transparent;
}
.faq-item.open .faq-a p{box-shadow:inset 2px 0 0 rgba(255,61,127,.65);}

/* ================= 表单 ================= */
.form-wrap{display:grid;grid-template-columns:0.85fr 1.15fr;gap:48px;align-items:start;}
.form-card{
  position:relative;background:rgba(255,255,255,.055);border:1px solid var(--line);
  border-radius:0 0 var(--r-lg) var(--r-lg);padding:30px 28px 28px;
  box-shadow:var(--shadow-in),var(--shadow-out);
  clip-path:polygon(0 0,calc(100% - 30px) 0,100% 30px,100% 100%,0 100%);
}
.form-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--accent-2),var(--accent));
}
.field{margin-bottom:20px;}
.field label.blk{display:block;font-size:14px;color:var(--text-2);margin-bottom:10px;}
.req{color:var(--accent);}
.field input[type="text"],.field input[type="tel"],.field textarea,.field select{
  width:100%;min-height:48px;padding:12px 14px;border-radius:12px;background:rgba(255,255,255,.05);
  border:1px solid var(--line);color:var(--text-1);line-height:1.6;
  transition:border-color .2s ease-out,box-shadow .2s ease-out,background .2s ease-out;
}
.field textarea{min-height:104px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--brand-soft);background:rgba(255,255,255,.08);
  box-shadow:0 0 0 3px rgba(47,107,255,.22);
}
.chip-group{display:flex;flex-wrap:wrap;gap:10px;}
.chip{display:inline-flex;align-items:center;}
.chip input{position:absolute;opacity:0;width:1px;height:1px;}
.chip span{
  display:inline-flex;align-items:center;padding:10px 16px;border-radius:999px;font-size:14px;
  color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.035);
  transition:all .2s ease-out;
}
.chip:hover span{border-color:rgba(47,107,255,.4);color:var(--text-1);}
.chip input:checked + span{
  color:#fff;border-color:rgba(255,61,127,.6);background:rgba(255,61,127,.14);
  box-shadow:0 0 0 1px rgba(255,61,127,.28),0 6px 18px rgba(255,61,127,.22);
}
.chip input:focus-visible + span{outline:2px solid var(--accent);outline-offset:2px;}
.form-note{font-size:12.5px;color:var(--text-3);margin-top:14px;line-height:1.8;}
.err-tip{display:none;color:var(--err);font-size:13px;margin-top:12px;}
.ok-panel{
  display:none;text-align:center;padding:34px 22px;
}
.ok-panel.show{display:block;}
.ok-ico{
  width:56px;height:56px;border-radius:16px;margin:0 auto 18px;display:grid;place-items:center;
  color:var(--ok);border:1px solid rgba(46,212,122,.4);background:rgba(46,212,122,.1);
}
.ok-panel h3{font-size:20px;margin-bottom:10px;}
.ok-panel p{color:var(--text-2);font-size:14.5px;line-height:1.85;margin-bottom:16px;}

/* ================= 通用转化条 ================= */
.cta-panel{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  padding:34px 36px;border-radius:var(--r-lg);border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(47,107,255,.16),rgba(255,255,255,.04) 58%,rgba(255,61,127,.12));
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-in),var(--shadow-out);
}
.cta-panel h2{font-size:24px;line-height:1.4;margin-bottom:8px;}
.cta-panel p{color:var(--text-2);font-size:14.5px;max-width:560px;}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}

/* ================= 页脚 ================= */
.site-footer{
  position:relative;z-index:1;margin-top:96px;background:var(--bg-1);border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);background-size:22px 22px;
}
.footer-grid{
  position:relative;display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding:64px 0 44px;
}
.footer-brand p{color:var(--text-2);font-size:14px;line-height:1.85;margin-top:18px;max-width:340px;}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:18px;color:var(--text-1);}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{color:var(--text-2);font-size:14px;}
.footer-col a:hover{color:var(--brand-soft);}
.footer-contact li{color:var(--text-2);font-size:14px;line-height:1.8;}
.qr-box{
  width:78px;height:78px;border-radius:14px;display:grid;place-items:center;color:var(--text-2);
  border:1px solid var(--line);background:rgba(255,255,255,.05);
}
.qr-cap{font-size:12.5px;color:var(--text-3);margin-top:10px;}
.footer-bottom{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);
}

/* ================= 响应式 ================= */
@media (max-width:1279px){
  .hero-inner{padding:56px 44px 48px;}
  .split{gap:36px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-burger{display:inline-flex;}
  .nav-drawer{
    position:absolute;left:0;right:0;top:calc(100% + 10px);z-index:70;
    flex-direction:column;gap:4px;padding:10px;border-radius:18px;
    background:rgba(8,14,26,.97);border:1px solid var(--line);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:var(--shadow-out);
  }
  .nav-drawer.open{display:flex;}
  .sec{padding:72px 0;}
  .sec-tight{padding:56px 0;}
  .split{grid-template-columns:1fr;gap:32px;}
  .form-wrap{grid-template-columns:1fr;gap:32px;}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-grid{grid-template-columns:1fr;}
  .ind-head{grid-template-columns:auto 1fr;}
  .ind-thumb{display:none;}
  .compare{grid-template-columns:1fr;}
  .cmp-mid{border-left:0;border-right:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);height:52px;}
  .cmp-mid svg{transform:rotate(90deg);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 36px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .site-header{padding:0 20px;}
  .hero-inner{padding:44px 24px 36px;}
  .micro-list{grid-template-columns:1fr;gap:16px;}
  .sec-title{font-size:26px;}
  .sec-head{margin-bottom:32px;}
  .cta-panel{padding:26px 22px;}
  .faq-a p{padding:0 20px 20px 20px;}
  .form-card{padding:24px 20px;clip-path:polygon(0 0,calc(100% - 22px) 0,100% 22px,100% 100%,0 100%);}
}
@media (max-width:520px){
  .stats{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-title{font-size:28px;}
  .btn{width:100%;}
  .hero-cta{gap:12px;}
  .btn-link{width:auto;}
  .cta-actions{width:100%;}
  .tl-node{width:246px;}
  .ind-head{padding:18px;}
}