/* roulang page: index */
:root{
  --bg-deep:#0B0E1F;
  --bg-2:#11152E;
  --surface:#151A36;
  --surface-2:#1D2347;
  --primary:#6C5CE7;
  --accent:#00D8C0;
  --highlight:#FFB25E;
  --text:#F5F7FF;
  --muted:#AEB6D9;
  --dim:#737CA8;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --grad-main:linear-gradient(135deg,#6C5CE7 0%,#00D8C0 100%);
  --grad-hot:linear-gradient(135deg,#FFB25E 0%,#6C5CE7 100%);
  --radius-lg:28px;
  --radius-sm:20px;
  --shadow:0 24px 80px rgba(0,0,0,.45);
  --shadow-hover:0 28px 90px rgba(108,92,231,.25);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg-deep);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(900px 620px at 12% -6%, rgba(108,92,231,.22), transparent 62%),
    radial-gradient(820px 520px at 92% 4%, rgba(0,216,192,.13), transparent 66%),
    radial-gradient(760px 700px at 50% 104%, rgba(255,178,94,.07), transparent 72%);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
a:hover{color:var(--accent)}
button,input{font-family:inherit;font-size:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1}
.section{padding:96px 0;position:relative;z-index:1}
.section-head{max-width:720px;margin-bottom:48px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;color:var(--accent);
  text-transform:none;font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--grad-main)}
h2{font-size:clamp(28px,4vw,44px);line-height:1.3;font-weight:800;letter-spacing:-.01em}
h3{font-size:20px;line-height:1.5;font-weight:700}
.lead{color:var(--muted);font-size:17px;margin-top:16px;line-height:1.9}

/* ---------- 导航 ---------- */
.site-nav{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);
  width:min(1180px,calc(100% - 32px));
  z-index:120;border-radius:999px;
  background:rgba(11,14,31,.72);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--line);
  box-shadow:0 14px 44px rgba(0,0,0,.38);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.site-nav.scrolled{background:rgba(11,14,31,.94);border-color:rgba(0,216,192,.24);box-shadow:0 18px 54px rgba(0,0,0,.55)}
.nav-inner{display:flex;align-items:center;gap:14px;padding:9px 10px 9px 20px;min-height:64px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{width:32px;height:32px;border-radius:50%;background:var(--grad-main);position:relative;flex-shrink:0}
.brand-mark::after{content:"";position:absolute;inset:9px;border-radius:50%;background:var(--bg-deep)}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:.04em;color:var(--text)}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.34em;color:var(--accent)}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:9px 18px;border-radius:999px;
  font-size:15px;color:var(--muted);
  transition:color .22s ease,background .22s ease;
}
.nav-link:hover{color:var(--text);background:rgba(108,92,231,.16)}
.nav-link.is-active{color:var(--text);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:18px;right:18px;bottom:2px;height:2px;border-radius:2px;background:var(--grad-main);
}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:999px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);cursor:pointer;padding:0;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
  transition:border-color .2s ease,background .2s ease;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .25s ease,opacity .25s ease}
.nav-toggle:hover{border-color:var(--accent);background:rgba(0,216,192,.10)}
.nav-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 28px;border-radius:999px;
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,filter .2s ease,color .2s ease;
}
.btn-primary{background:var(--grad-main);color:#fff;box-shadow:0 14px 34px rgba(108,92,231,.35)}
.btn-primary:hover{filter:brightness(1.05);transform:translateY(-1px);box-shadow:0 20px 46px rgba(108,92,231,.48);color:#fff}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{background:rgba(255,255,255,.06);border-color:var(--accent);color:var(--accent)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.btn:disabled,.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;filter:none}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:88vh;display:flex;align-items:center;padding:158px 0 96px;overflow:hidden}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.52;
}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,14,31,.86) 0%,rgba(11,14,31,.70) 44%,var(--bg-deep) 100%);
}
.hero-stars{
  position:absolute;inset:0;opacity:.65;
  background-image:
    radial-gradient(1.5px 1.5px at 14% 24%, rgba(255,255,255,.75), transparent 100%),
    radial-gradient(1.5px 1.5px at 32% 68%, rgba(0,216,192,.65), transparent 100%),
    radial-gradient(1.5px 1.5px at 58% 18%, rgba(255,255,255,.55), transparent 100%),
    radial-gradient(1.5px 1.5px at 76% 52%, rgba(255,178,94,.6), transparent 100%),
    radial-gradient(1.5px 1.5px at 88% 30%, rgba(255,255,255,.5), transparent 100%),
    radial-gradient(1.5px 1.5px at 46% 86%, rgba(108,92,231,.7), transparent 100%);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;width:100%}
.hero h1{
  font-size:clamp(40px,6vw,72px);
  line-height:1.16;font-weight:800;letter-spacing:-.02em;margin:18px 0 22px;
}
.hero h1 .grad{background:var(--grad-main);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:18px;color:var(--muted);max-width:600px;line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;font-size:13px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--muted);
}
.tag.hot{background:rgba(255,178,94,.12);border-color:rgba(255,178,94,.4);color:var(--highlight)}
.tag.cool{background:rgba(0,216,192,.12);border-color:rgba(0,216,192,.38);color:var(--accent)}
.stat-panel{display:grid;gap:14px}
.stat{
  display:flex;align-items:center;gap:16px;
  padding:18px 20px;border-radius:18px;
  background:rgba(21,26,54,.74);
  border:1px solid var(--line);
  border-left:3px solid var(--accent);
  backdrop-filter:blur(6px);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.stat:nth-child(2){border-left-color:var(--highlight)}
.stat:nth-child(3){border-left-color:var(--primary)}
.stat:nth-child(4){border-left-color:var(--accent)}
.stat:hover{transform:translateY(-3px);border-color:rgba(0,216,192,.45);box-shadow:var(--shadow-hover)}
.stat b{display:block;font-size:24px;font-weight:800;line-height:1.25;letter-spacing:-.01em}
.stat span{display:block;font-size:13px;color:var(--muted);line-height:1.6}
.stat-icon{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;
  background:rgba(108,92,231,.16);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:16px;color:var(--accent);
}

/* ---------- 品牌主张 ---------- */
.claim-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.claim-list{display:grid;gap:14px;margin-top:32px}
.claim-item{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px 18px;border-radius:16px;background:var(--surface);border:1px solid var(--line-soft);
  transition:border-color .22s ease,transform .22s ease;
}
.claim-item:hover{border-color:rgba(0,216,192,.4);transform:translateX(4px)}
.claim-item i{
  width:26px;height:26px;border-radius:50%;flex-shrink:0;margin-top:4px;
  background:var(--grad-main);display:flex;align-items:center;justify-content:center;
  font-style:normal;font-size:13px;font-weight:800;color:#0B0E1F;
}
.claim-item p{font-size:15px;color:var(--muted);line-height:1.8}
.claim-item strong{display:block;color:var(--text);font-size:16px;font-weight:700;margin-bottom:2px}
.claim-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line)}
.claim-visual img{width:100%;height:440px;object-fit:cover}
.ring{
  position:absolute;border-radius:50%;border:1px dashed rgba(0,216,192,.5);pointer-events:none;
}
.ring.r1{width:260px;height:260px;top:-60px;right:-70px;animation:spin 26s linear infinite}
.ring.r2{width:160px;height:160px;bottom:-40px;left:-40px;border-color:rgba(255,178,94,.5);animation:spin 34s linear infinite reverse}
@keyframes spin{to{transform:rotate(360deg)}}
.claim-badge{
  position:absolute;left:24px;bottom:24px;right:24px;
  padding:16px 18px;border-radius:18px;
  background:rgba(11,14,31,.82);border:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.claim-badge b{display:block;font-size:15px;font-weight:700;margin-bottom:4px}
.claim-badge span{font-size:13px;color:var(--muted)}

/* ---------- 故事/理念 时间线 ---------- */
.timeline{position:relative;display:grid;gap:26px;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:31px;top:20px;bottom:20px;width:1px;
  background:linear-gradient(180deg,rgba(108,92,231,.7),rgba(0,216,192,.5),rgba(255,178,94,.4));
}
.tl-card{
  position:relative;margin-left:0;padding:26px 28px 26px 84px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.tl-card:nth-child(2){margin-left:38px}
.tl-card:nth-child(3){margin-left:76px}
.tl-card:hover{transform:translateY(-4px);border-color:rgba(0,216,192,.42);box-shadow:var(--shadow-hover)}
.tl-num{
  position:absolute;left:24px;top:26px;
  width:44px;height:44px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:15px;color:#0B0E1F;background:var(--grad-main);
}
.tl-card:nth-child(2) .tl-num{background:var(--grad-hot)}
.tl-card:nth-child(3) .tl-num{background:linear-gradient(135deg,#00D8C0 0%,#6C5CE7 100%)}
.tl-card h3{margin-bottom:8px}
.tl-card p{color:var(--muted);font-size:15px;line-height:1.85}

/* ---------- 精选内容 ---------- */
.pick-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:26px}
.pick-col{display:grid;gap:26px}
.card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:var(--grad-main);opacity:0;transition:opacity .25s ease;z-index:3;
}
.card:hover{transform:translateY(-4px);border-color:rgba(0,216,192,.45);box-shadow:var(--shadow-hover)}
.card:hover::before{opacity:1}
.card-cover{position:relative;overflow:hidden}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .28s ease}
.card:hover .card-cover img{transform:scale(1.03)}
.card-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px;flex:1}
.card h3{font-size:21px;line-height:1.45}
.card p{color:var(--muted);font-size:15px;line-height:1.85}
.card-meta{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:12px;font-size:13px;color:var(--dim)}
.pick-tall .card-cover img{height:300px}
.pick-wide .card-cover img{height:220px}
.pick-small .card-cover img{height:190px}
.pick-small h3{font-size:18px}
.readmore{display:inline-flex;align-items:center;gap:6px;color:var(--accent);font-size:14px;font-weight:600}
.readmore::after{content:"→";transition:transform .22s ease}
.readmore:hover::after{transform:translateX(4px)}

/* ---------- 最新信息 ---------- */
.news-layout{display:grid;grid-template-columns:220px 1fr;gap:36px;align-items:start}
.filter-bar{position:sticky;top:110px;display:grid;gap:8px}
.filter-btn{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 18px;border-radius:999px;cursor:pointer;
  background:transparent;border:1px solid var(--line);color:var(--muted);
  font-size:14px;text-align:left;transition:all .22s ease;
}
.filter-btn:hover{border-color:rgba(0,216,192,.5);color:var(--text);background:rgba(255,255,255,.04)}
.filter-btn.is-active{background:rgba(108,92,231,.18);border-color:rgba(108,92,231,.6);color:var(--text);font-weight:700}
.filter-btn.is-active::after{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.news-list{display:grid;gap:18px}
.news-item{
  display:grid;grid-template-columns:220px 1fr;gap:22px;
  padding:18px;border-radius:var(--radius-sm);
  background:var(--surface);border:1px solid var(--line);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.news-item:hover{transform:translateY(-3px);border-color:rgba(0,216,192,.45);box-shadow:var(--shadow-hover)}
.news-thumb{border-radius:14px;overflow:hidden;background:var(--surface-2);aspect-ratio:16/10}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .28s ease}
.news-item:hover .news-thumb img{transform:scale(1.03)}
.news-body{display:flex;flex-direction:column;gap:10px;min-width:0}
.news-body h3{font-size:19px;line-height:1.5}
.news-body h3 a{display:block}
.news-body p{color:var(--muted);font-size:15px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--dim);margin-top:auto;padding-top:6px;flex-wrap:wrap}
.empty-state{
  display:none;flex-direction:column;align-items:center;gap:14px;text-align:center;
  padding:52px 24px;border-radius:var(--radius-sm);
  background:var(--surface);border:1px dashed var(--line);
}
.empty-state.is-visible{display:flex}
.empty-state .icon{
  width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:rgba(108,92,231,.16);border:1px solid var(--line);font-size:22px;color:var(--accent);
}
.empty-state p{color:var(--muted);font-size:15px}
.load-more{display:flex;justify-content:center;margin-top:30px}
.skeleton{height:96px;border-radius:var(--radius-sm);background:linear-gradient(90deg,#151A36,#1D2347,#151A36);background-size:200% 100%;animation:sk 1.4s infinite}
@keyframes sk{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* ---------- 信任背书 ---------- */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.trust-badge{
  padding:24px 22px;border-radius:var(--radius-sm);text-align:left;
  background:var(--surface);border:1px solid var(--line);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.trust-badge:hover{transform:translateY(-4px);border-color:rgba(0,216,192,.45);box-shadow:var(--shadow-hover)}
.trust-badge b{display:block;font-size:32px;font-weight:800;line-height:1.2;background:var(--grad-main);-webkit-background-clip:text;background-clip:text;color:transparent}
.trust-badge span{display:block;font-size:13px;color:var(--muted);margin-top:6px}
.progress-block{margin-top:52px;padding:32px;border-radius:var(--radius-lg);background:var(--bg-2);border:1px solid var(--line)}
.progress-block h3{margin-bottom:6px}
.progress-block > p{color:var(--muted);font-size:15px;margin-bottom:24px}
.progress-row{display:grid;grid-template-columns:180px 1fr 88px;align-items:center;gap:18px;margin-bottom:18px}
.progress-row:last-child{margin-bottom:0}
.progress-row span{font-size:14px;color:var(--muted)}
.progress-track{height:8px;border-radius:999px;background:var(--surface-2);overflow:hidden}
.progress-fill{height:100%;border-radius:999px;background:var(--grad-main);transition:width .6s ease}
.progress-fill.orange{background:var(--grad-hot)}
.progress-fill.plain{background:rgba(255,255,255,.25)}
.progress-row em{font-style:normal;font-size:13px;color:var(--accent);text-align:right}
.logo-strip{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
.logo-pill{
  padding:10px 20px;border-radius:999px;font-size:14px;color:var(--muted);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:all .22s ease;
}
.logo-pill:hover{color:var(--text);border-color:rgba(0,216,192,.45);background:rgba(0,216,192,.08)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto}
.faq-item{
  position:relative;border-radius:var(--radius-sm);overflow:hidden;
  background:var(--surface);border:1px solid var(--line);
  transition:border-color .22s ease;
}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad-main);opacity:0;transition:opacity .25s ease}
.faq-item.open{border-color:rgba(0,216,192,.42)}
.faq-item.open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:transparent;border:0;color:var(--text);
  font-size:18px;font-weight:700;text-align:left;cursor:pointer;
}
.faq-icon{
  width:28px;height:28px;border-radius:50%;flex-shrink:0;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  font-size:14px;color:var(--accent);transition:transform .28s ease,border-color .22s ease;
}
.faq-item.open .faq-icon{transform:rotate(180deg);border-color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a p{padding:0 24px 22px;color:var(--muted);font-size:15px;line-height:1.85}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  padding:56px;border-radius:32px;
  background:linear-gradient(135deg,rgba(108,92,231,.28) 0%,rgba(0,216,192,.16) 60%,rgba(255,178,94,.12) 100%),var(--bg-2);
  border:1px solid var(--line);
}
.cta-card::after{
  content:"";position:absolute;width:420px;height:420px;border-radius:50%;right:-140px;top:-160px;
  background:radial-gradient(circle,rgba(0,216,192,.24),transparent 68%);
}
.cta-card h2{margin-bottom:14px}
.cta-card p{color:var(--muted);font-size:16px}
.sub-form{position:relative;z-index:2;display:grid;gap:12px}
.field{display:flex;gap:10px}
.input{
  flex:1;height:52px;padding:0 22px;border-radius:999px;
  background:var(--surface-2);border:1px solid var(--line);color:var(--text);
  font-size:15px;transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.input::placeholder{color:var(--dim)}
.input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(0,216,192,.18)}
.input.error{border-color:var(--highlight);box-shadow:0 0 0 3px rgba(255,178,94,.16)}
.input:disabled{opacity:.5;cursor:not-allowed}
.form-msg{font-size:13px;min-height:20px;color:var(--dim)}
.form-msg.ok{color:var(--accent)}
.form-msg.err{color:var(--highlight)}
.form-note{font-size:13px;color:var(--dim)}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;z-index:1;margin-top:40px;
  padding:72px 0 32px;
  background:linear-gradient(180deg,rgba(17,21,46,0) 0%,rgba(17,21,46,.85) 40%,#0A0D1C 100%);
  border-top:1px solid var(--line-soft);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{color:var(--muted);font-size:14px;line-height:1.9;max-width:320px}
.footer-title{font-size:15px;font-weight:700;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:var(--muted);transition:color .2s ease}
.footer-links a:hover{color:var(--accent)}
.footer-sub{display:flex;gap:8px;margin-top:8px}
.footer-sub .input{height:44px;font-size:14px;padding:0 18px}
.footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid var(--line-soft);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--dim);
}
.footer-bottom a{color:var(--dim)}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .news-item{grid-template-columns:200px 1fr}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .claim-grid{grid-template-columns:1fr;gap:40px}
  .claim-visual img{height:360px}
  .pick-grid{grid-template-columns:1fr}
  .news-layout{grid-template-columns:1fr;gap:24px}
  .filter-bar{position:static;display:flex;overflow-x:auto;gap:10px;padding-bottom:6px;scrollbar-width:none}
  .filter-bar::-webkit-scrollbar{display:none}
  .filter-btn{white-space:nowrap;flex-shrink:0}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .cta-card{grid-template-columns:1fr;gap:32px;padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .nav-menu{
    position:absolute;top:calc(100% + 12px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:12px;border-radius:26px;
    background:rgba(11,14,31,.97);border:1px solid var(--line);
    box-shadow:0 24px 60px rgba(0,0,0,.55);
    display:none;
  }
  .nav-menu.open{display:flex}
  .nav-link{padding:0 20px;height:48px;display:flex;align-items:center;border-radius:14px}
  .nav-link.is-active::after{left:20px;right:auto;width:22px;bottom:10px}
  .nav-toggle{display:flex}
  .nav-cta .btn{display:none}
}
@media (max-width:767px){
  .hero{padding:132px 0 72px;min-height:auto}
  .hero-sub{font-size:16px}
  .hero-actions .btn{width:100%}
  .news-item{grid-template-columns:1fr;gap:14px}
  .news-thumb{aspect-ratio:16/9}
  .tl-card,.tl-card:nth-child(2),.tl-card:nth-child(3){margin-left:0;padding:22px 22px 22px 22px}
  .timeline::before{display:none}
  .tl-num{position:static;margin-bottom:12px}
  .progress-row{grid-template-columns:1fr;gap:8px}
  .progress-row em{text-align:left}
  .field{flex-direction:column}
  .field .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:519px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .brand-text em{display:none}
  .trust-grid{grid-template-columns:1fr}
  .cta-card{padding:32px 22px;border-radius:26px}
  .progress-block{padding:24px 20px}
  .card-body{padding:20px}
}

/* roulang page: article */
:root{
  --bg-deep:#0B0E1F;
  --bg-2:#11152E;
  --surface:#151A36;
  --surface-2:#1D2347;
  --primary:#6C5CE7;
  --accent:#00D8C0;
  --highlight:#FFB25E;
  --text:#F5F7FF;
  --body-text:#D9DEF6;
  --muted:#AEB6D9;
  --dim:#737CA8;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --grad-main:linear-gradient(135deg,#6C5CE7 0%,#00D8C0 100%);
  --grad-hot:linear-gradient(135deg,#FFB25E 0%,#6C5CE7 100%);
  --r-lg:28px;
  --r-md:20px;
  --r-pill:999px;
  --shadow:0 24px 80px rgba(0,0,0,.45);
  --shadow-hover:0 28px 90px rgba(108,92,231,.25);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-deep);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(circle at 12% 8%,rgba(108,92,231,.20),transparent 42%),
    radial-gradient(circle at 88% 4%,rgba(0,216,192,.13),transparent 46%),
    radial-gradient(circle at 50% 100%,rgba(255,178,94,.08),transparent 50%);
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
button,input{font:inherit}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0}
::selection{background:rgba(108,92,231,.45);color:#fff}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1}
.section{padding:88px 0}
.section-head{max-width:720px;margin-bottom:40px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--accent);letter-spacing:1.5px;margin-bottom:14px}
.section-head .eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad-main)}
.section-head h2{font-size:clamp(26px,3.4vw,38px)}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px}

/* ---------- 导航 ---------- */
.site-nav{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);
  width:min(1180px,calc(100% - 32px));
  z-index:80;
  background:rgba(11,14,31,.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  box-shadow:0 18px 50px rgba(0,0,0,.35);
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-nav.is-scrolled{background:rgba(11,14,31,.92);box-shadow:0 22px 60px rgba(0,0,0,.55);border-color:rgba(255,255,255,.14)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 14px 10px 20px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:30px;height:30px;border-radius:50%;
  background:var(--grad-main);
  box-shadow:0 0 0 4px rgba(108,92,231,.16),0 0 18px rgba(0,216,192,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.08}
.brand-text strong{font-size:16px;letter-spacing:.6px;font-weight:800}
.brand-text em{font-style:normal;font-size:11px;color:var(--dim);letter-spacing:3px}
.nav-menu{display:flex;align-items:center;gap:6px}
.nav-link{position:relative;padding:9px 17px;border-radius:var(--r-pill);font-size:15px;color:var(--muted)}
.nav-link:hover{background:rgba(108,92,231,.16);color:var(--text)}
.nav-link.is-active{color:var(--text);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:17px;right:17px;bottom:4px;height:2px;
  border-radius:2px;background:var(--grad-main);
}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .25s ease,opacity .2s ease}
.nav-toggle:hover{border-color:var(--accent)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 按钮 / 标签 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;letter-spacing:.4px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,filter .2s ease,color .2s ease;
}
.btn-primary{background:var(--grad-main);color:#fff;box-shadow:0 14px 34px rgba(108,92,231,.34)}
.btn-primary:hover{filter:brightness(1.05);transform:translateY(-1px);box-shadow:0 18px 44px rgba(108,92,231,.46);color:#fff}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--accent);background:rgba(255,255,255,.06);color:var(--text)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn:disabled,.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;letter-spacing:.6px;
  color:var(--accent);background:rgba(0,216,192,.09);
  border:1px solid rgba(0,216,192,.38);
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
.tag{
  display:inline-block;padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;color:var(--highlight);
  background:rgba(255,178,94,.10);border:1px solid rgba(255,178,94,.32);
}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;padding:152px 0 46px;
  background:linear-gradient(180deg,rgba(11,14,31,.72),rgba(11,14,31,.94)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line-soft);
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 84% 16%,rgba(0,216,192,.16),transparent 55%),
             radial-gradient(circle at 8% 80%,rgba(108,92,231,.22),transparent 52%);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--dim);margin-bottom:22px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--accent)}
.crumbs .sep{color:var(--dim);opacity:.7}
.crumbs .current{color:var(--accent)}
.article-hero h1{
  font-size:clamp(28px,4.2vw,48px);
  font-weight:800;letter-spacing:.3px;max-width:920px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px;margin-top:24px;font-size:13.5px;color:var(--muted)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--dim)}

/* ---------- 文章主体 ---------- */
.article-shell{padding:56px 0 20px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:44px;align-items:start}
.article-content{min-width:0;max-width:820px}
.article-cover{
  margin:0 0 34px;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-body{font-size:17px;line-height:1.9;color:var(--body-text)}
.article-body h2{
  position:relative;margin:46px 0 16px;padding-left:16px;
  font-size:clamp(22px,2.6vw,30px);font-weight:700;color:#fff;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.34em;bottom:.34em;width:4px;
  border-radius:4px;background:var(--grad-main);
}
.article-body h3{margin:32px 0 12px;font-size:20px;font-weight:700;color:#fff}
.article-body h4{margin:26px 0 10px;font-size:17px;font-weight:700;color:#fff}
.article-body p{margin:0 0 18px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body li{margin-bottom:10px}
.article-body li::marker{color:var(--accent)}
.article-body strong{color:#fff;font-weight:700}
.article-body blockquote{
  margin:28px 0;padding:20px 24px;border-left:3px solid var(--accent);
  background:rgba(0,216,192,.07);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--text);
}
.article-body img{border-radius:var(--r-md);margin:28px 0;border:1px solid var(--line)}
.article-body a{color:var(--accent);text-decoration:underline;text-underline-offset:4px}
.article-body a:hover{color:#fff}
.article-body table{
  width:100%;border-collapse:collapse;margin:28px 0;font-size:15px;
  border:1px solid var(--line);border-radius:16px;overflow:hidden;
}
.article-body th,.article-body td{padding:12px 15px;border-bottom:1px solid var(--line-soft);text-align:left}
.article-body th{background:rgba(108,92,231,.14);color:#fff;font-weight:700}
.article-body tr:last-child td{border-bottom:none}
.article-body hr{border:none;height:1px;background:var(--line);margin:36px 0}
.article-body code{background:var(--surface-2);padding:2px 7px;border-radius:8px;font-size:14.5px;color:var(--highlight)}
.article-foot{
  margin-top:40px;padding:22px 24px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
}
.article-foot p{font-size:13.5px;color:var(--muted);max-width:560px}

/* 空态 */
.empty-state{
  padding:56px 28px;text-align:center;border-radius:var(--r-lg);
  background:var(--surface);border:1px dashed rgba(255,255,255,.18);
}
.empty-state .empty-icon{
  width:58px;height:58px;margin:0 auto 18px;border-radius:50%;
  background:var(--grad-main);opacity:.9;
  display:flex;align-items:center;justify-content:center;font-size:24px;color:#fff;
}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--muted);margin-bottom:22px}
.empty-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:110px;display:grid;gap:20px}
.side-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:22px 22px 20px;overflow:hidden;
}
.side-card::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad-main);opacity:.9}
.side-card h3{font-size:16px;margin-bottom:14px;color:#fff}
.side-nav{display:flex;flex-direction:column;gap:4px}
.side-nav a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:12px;
  font-size:14.5px;color:var(--muted);transition:background .2s ease,color .2s ease,transform .2s ease;
}
.side-nav a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--dim);transition:background .2s ease}
.side-nav a:hover{background:rgba(108,92,231,.16);color:var(--text);transform:translateX(2px)}
.side-nav a:hover::before{background:var(--accent)}
.side-list{display:flex;flex-direction:column;gap:16px}
.side-item{display:flex;gap:12px;align-items:flex-start}
.side-item img{width:64px;height:64px;border-radius:14px;object-fit:cover;flex-shrink:0}
.side-item h4{font-size:14.5px;font-weight:600;line-height:1.55}
.side-item span{font-size:12.5px;color:var(--dim)}
.side-tip{font-size:13.5px;color:var(--muted)}

/* ---------- 相关推荐 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.post-card::before{content:"";height:2px;background:var(--grad-main);opacity:.85}
.post-card:hover{transform:translateY(-4px);border-color:rgba(0,216,192,.45);box-shadow:var(--shadow-hover)}
.post-thumb{overflow:hidden;margin:0}
.post-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px}
.post-body h3{font-size:18px;line-height:1.55;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body p{font-size:14.5px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 上下篇 ---------- */
.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.pn-card{
  display:flex;flex-direction:column;gap:8px;padding:22px 24px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  transition:transform .22s ease,border-color .22s ease,background .22s ease;
}
.pn-card:hover{transform:translateY(-3px);border-color:rgba(0,216,192,.45);background:var(--surface-2)}
.pn-card span{font-size:12.5px;color:var(--accent);letter-spacing:1px}
.pn-card strong{font-size:16px;font-weight:600;line-height:1.6}
.pn-card.is-next{text-align:right}
.back-row{margin-top:24px;display:flex;justify-content:center}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:1.15fr 1fr;gap:36px;align-items:center;
  padding:52px 52px;border-radius:32px;
  background:linear-gradient(135deg,rgba(108,92,231,.92) 0%,rgba(0,216,192,.85) 100%);
  box-shadow:var(--shadow);
}
.cta-card::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 88% 12%,rgba(255,255,255,.24),transparent 52%);
}
.cta-copy h2{font-size:clamp(24px,3vw,34px);color:#fff}
.cta-copy p{margin-top:14px;color:rgba(255,255,255,.9);font-size:15.5px;max-width:460px}
.cta-form{position:relative;z-index:1;display:grid;gap:12px}
.cta-form .form-row{display:flex;gap:10px}
.cta-form .btn-primary{background:#0B0E1F;box-shadow:0 14px 34px rgba(0,0,0,.35)}
.cta-form .btn-primary:hover{background:#151A36}
.input{
  width:100%;height:50px;padding:0 20px;border-radius:var(--r-pill);
  background:rgba(11,14,31,.34);border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.input::placeholder{color:rgba(255,255,255,.66)}
.input:focus{outline:none;border-color:#fff;background:rgba(11,14,31,.5);box-shadow:0 0 0 3px rgba(255,255,255,.22)}
.input.is-error{border-color:var(--highlight);box-shadow:0 0 0 3px rgba(255,178,94,.28)}
.form-msg{font-size:13.5px;min-height:20px;color:#fff;opacity:.95}
.form-msg.is-error{color:#FFE0B8}
.form-msg.is-success{color:#EAFFFA}
.form-hint{font-size:12.5px;color:rgba(255,255,255,.78)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;padding:64px 0 28px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,var(--bg-2),var(--bg-deep));
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:32px}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--muted);max-width:330px}
.footer-title{font-size:15px;margin-bottom:16px;color:#fff}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--muted)}
.footer-links a:hover{color:var(--accent)}
.footer-sub{display:flex;gap:8px;margin-top:14px}
.footer-sub .input{
  height:44px;font-size:14px;background:var(--surface-2);
  border-color:var(--line);color:var(--text);
}
.footer-sub .input::placeholder{color:var(--dim)}
.footer-sub .input:focus{border-color:var(--accent);background:var(--surface-2);box-shadow:0 0 0 3px rgba(0,216,192,.16)}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--dim);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 290px;gap:32px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .article-layout{grid-template-columns:1fr;gap:36px}
  .article-content{max-width:100%}
  .article-side{position:static;top:auto;grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-rows:1fr}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-card{grid-template-columns:1fr;padding:42px 36px;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .nav-menu{
    position:absolute;top:calc(100% + 12px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:12px;border-radius:24px;
    background:rgba(11,14,31,.97);
    border:1px solid var(--line);
    box-shadow:0 26px 70px rgba(0,0,0,.55);
    display:none;
  }
  .nav-menu.is-open{display:flex}
  .nav-link{height:48px;display:flex;align-items:center;padding:0 18px;border-radius:16px}
  .nav-link.is-active::after{left:18px;right:auto;width:22px;bottom:10px}
  .nav-toggle{display:flex}
  .nav-inner{padding:9px 10px 9px 16px}
  .brand-text em{letter-spacing:2px}
  .article-hero{padding:132px 0 36px}
  .article-shell{padding:40px 0 12px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .related-grid{grid-template-columns:1fr}
  .prevnext{grid-template-columns:1fr}
  .pn-card.is-next{text-align:left}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:640px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .article-side{grid-template-columns:1fr}
  .article-hero{padding:124px 0 30px}
  .cta-card{padding:32px 22px;border-radius:26px}
  .cta-form .form-row{flex-direction:column}
  .cta-form .btn{width:100%}
  .article-meta{gap:10px 14px}
  .article-foot{flex-direction:column;align-items:flex-start}
  .btn{width:100%}
  .btn-sm{width:auto}
  .nav-cta .btn-sm{display:none}
}
@media (max-width:520px){
  .article-hero h1{font-size:26px}
  .section-head h2{font-size:24px}
  .post-body{padding:18px 18px 20px}
}

/* roulang page: category1 */
:root{
  --bg-deep:#0B0E1F;
  --bg-2:#11152E;
  --surface:#151A36;
  --surface-2:#1D2347;
  --primary:#6C5CE7;
  --accent:#00D8C0;
  --highlight:#FFB25E;
  --text:#F5F7FF;
  --muted:#AEB6D9;
  --dim:#737CA8;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --grad-main:linear-gradient(135deg,#6C5CE7 0%,#00D8C0 100%);
  --grad-hot:linear-gradient(135deg,#FFB25E 0%,#6C5CE7 100%);
  --radius-lg:28px;
  --radius-sm:20px;
  --shadow-lg:0 24px 80px rgba(0,0,0,.45);
  --shadow-hover:0 28px 90px rgba(108,92,231,.25);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:
    radial-gradient(900px 520px at 12% -12%,rgba(108,92,231,.22),transparent 62%),
    radial-gradient(760px 460px at 92% 2%,rgba(0,216,192,.12),transparent 62%),
    var(--bg-deep);
  background-attachment:fixed;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(1.4px 1.4px at 18% 22%,rgba(245,247,255,.35),transparent 60%),
    radial-gradient(1.2px 1.2px at 72% 14%,rgba(0,216,192,.35),transparent 60%),
    radial-gradient(1.6px 1.6px at 42% 68%,rgba(255,178,94,.28),transparent 60%),
    radial-gradient(1.2px 1.2px at 88% 76%,rgba(245,247,255,.22),transparent 60%);
  opacity:.55;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
button,input{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;position:relative;z-index:2;}

/* ===== 导航 ===== */
.site-nav{
  position:fixed;top:16px;left:0;right:0;
  width:min(1180px,calc(100% - 32px));
  margin:0 auto;z-index:90;
  border-radius:999px;
  background:rgba(11,14,31,.72);
  border:1px solid var(--line);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:0 12px 40px rgba(0,0,0,.35);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-nav.is-scrolled{background:rgba(11,14,31,.92);box-shadow:0 18px 52px rgba(0,0,0,.5);}
.nav-inner{
  display:grid;grid-template-columns:1fr auto 1fr;
  align-items:center;gap:16px;
  padding:9px 12px 9px 20px;
}
.brand{display:inline-flex;align-items:center;gap:10px;min-width:0;}
.brand-mark{
  position:relative;flex:0 0 auto;
  width:26px;height:26px;border-radius:50%;
  background:var(--grad-main);
  box-shadow:0 0 0 4px rgba(108,92,231,.18);
}
.brand-mark::after{content:"";position:absolute;inset:7px;border-radius:50%;background:var(--bg-deep);}
.brand-text{display:inline-flex;align-items:baseline;gap:4px;font-size:17px;white-space:nowrap;}
.brand-text strong{font-weight:800;color:var(--text);}
.brand-text em{font-style:normal;font-size:12.5px;color:var(--muted);}
.nav-menu{display:flex;align-items:center;justify-content:center;gap:4px;}
.nav-link{
  position:relative;
  padding:9px 16px;border-radius:999px;
  font-size:15px;color:var(--muted);
  transition:background .2s ease,color .2s ease;
}
.nav-link:hover{background:rgba(108,92,231,.16);color:var(--text);}
.nav-link.is-active{color:var(--text);}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:3px;
  transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--grad-main);
}
.nav-cta{display:flex;align-items:center;justify-content:flex-end;gap:10px;}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;padding:0 11px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.05);
  cursor:pointer;transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:rgba(255,255,255,.09);border-color:rgba(0,216,192,.45);}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--text);transition:transform .25s ease,opacity .2s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:700;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,filter .2s ease;
}
.btn-primary{background:var(--grad-main);color:#fff;box-shadow:0 12px 32px rgba(108,92,231,.35);}
.btn-primary:hover{color:#fff;filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 18px 44px rgba(108,92,231,.45);}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text);}
.btn-ghost:hover{border-color:var(--accent);background:rgba(255,255,255,.06);color:var(--text);}
.btn-ghost:active{transform:scale(.98);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn.is-disabled,.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;filter:none;}

/* ===== 通用板块 ===== */
.section{padding:96px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-title{font-size:clamp(28px,4vw,44px);font-weight:800;letter-spacing:.01em;}
.section-sub{margin-top:16px;font-size:16.5px;color:var(--muted);line-height:1.9;}
.eyebrow{
  display:inline-block;margin-bottom:14px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--accent);
}

/* ===== 内页首屏 ===== */
.page-hero{position:relative;overflow:hidden;padding:158px 0 88px;min-height:62vh;display:flex;align-items:center;}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.42;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,14,31,.72) 0%,rgba(11,14,31,.9) 58%,var(--bg-deep) 100%);
}
.page-hero-inner{position:relative;z-index:3;}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13.5px;color:var(--dim);margin-bottom:22px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:var(--dim);}
.breadcrumb .current{color:var(--text);}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  height:32px;padding:0 16px;border-radius:999px;
  background:rgba(108,92,231,.16);
  border:1px solid rgba(108,92,231,.4);
  font-size:13px;color:var(--text);
}
.pill .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(0,216,192,.18);}
.page-hero h1{
  margin:22px 0 16px;
  font-size:clamp(34px,5vw,60px);
  font-weight:800;line-height:1.16;letter-spacing:.01em;
}
.hero-sub{max-width:600px;font-size:17.5px;color:var(--muted);line-height:1.9;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}

/* ===== 数据徽章 ===== */
.stats-strip{padding:0 0 8px;margin-top:-46px;position:relative;z-index:9;}
.stat-row{display:flex;gap:16px;overflow-x:auto;padding-bottom:10px;scrollbar-width:thin;}
.stat-row::-webkit-scrollbar{height:6px;}
.stat-row::-webkit-scrollbar-thumb{background:rgba(108,92,231,.5);border-radius:999px;}
.stat{
  position:relative;flex:1 0 auto;min-width:190px;
  display:flex;flex-direction:column;gap:2px;
  padding:20px 24px 18px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.stat::before{
  content:"";position:absolute;top:0;left:24px;right:24px;height:2px;border-radius:2px;
  background:var(--grad-main);opacity:.85;
}
.stat:hover{transform:translateY(-4px);border-color:rgba(0,216,192,.45);box-shadow:var(--shadow-hover);}
.stat-num{
  font-size:30px;font-weight:800;line-height:1.2;
  background:var(--grad-main);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-label{font-size:13px;color:var(--muted);}

/* ===== 简介区 ===== */
.intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.intro-media img{width:100%;border-radius:var(--radius-sm);box-shadow:var(--shadow-lg);object-fit:cover;}
.intro-media figcaption{margin-top:14px;font-size:13px;color:var(--dim);}
.check-list{list-style:none;margin-top:26px;display:grid;gap:14px;}
.check-list li{display:flex;gap:12px;font-size:16px;color:var(--muted);line-height:1.85;}
.check-dot{
  flex:0 0 auto;width:8px;height:8px;margin-top:11px;border-radius:50%;
  background:var(--grad-main);box-shadow:0 0 0 4px rgba(0,216,192,.14);
}

/* ===== 卡片 ===== */
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(0,216,192,.45);box-shadow:var(--shadow-hover);}
.card-cover{display:block;overflow:hidden;aspect-ratio:16/9;background:var(--surface-2);}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.card:hover .card-cover img{transform:scale(1.03);}
.card-body{padding:22px 24px 24px;}
.card-title{font-size:20px;font-weight:700;line-height:1.45;margin:12px 0 10px;}
.card-title a{color:var(--text);}
.card-title a:hover{color:var(--accent);}
.card-text{font-size:15px;color:var(--muted);line-height:1.85;}
.card-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:18px;padding-top:14px;
  border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--dim);
}
.link-arrow{color:var(--accent);font-weight:600;white-space:nowrap;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.03em;
  color:var(--accent);background:rgba(0,216,192,.12);border:1px solid rgba(0,216,192,.3);
}
.tag.is-hot{color:var(--highlight);background:rgba(255,178,94,.12);border-color:rgba(255,178,94,.32);}
.tag.is-plain{color:var(--muted);background:rgba(255,255,255,.05);border-color:var(--line);}

.feature-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.feature-card:nth-child(1){grid-column:span 7;}
.feature-card:nth-child(2){grid-column:span 5;}
.feature-card:nth-child(3){grid-column:span 5;}
.feature-card:nth-child(4){grid-column:span 7;}

/* ===== 更新节奏时间线 ===== */
.timeline{list-style:none;display:grid;gap:20px;}
.tl-item{
  display:grid;grid-template-columns:88px 1fr;gap:24px;align-items:start;
  padding:26px 28px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.tl-item:hover{transform:translateY(-3px);border-color:rgba(0,216,192,.45);box-shadow:var(--shadow-hover);}
.tl-index{
  font-size:28px;font-weight:800;line-height:1.3;
  background:var(--grad-hot);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.tl-item h3{font-size:20px;margin-bottom:8px;}
.tl-item p{font-size:15.5px;color:var(--muted);}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:16px;max-width:920px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:0 24px;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item:hover{border-color:rgba(108,92,231,.5);}
.faq-item[open]{
  border-color:rgba(0,216,192,.38);
  box-shadow:inset 3px 0 0 0 rgba(0,216,192,.65),0 18px 50px rgba(0,0,0,.35);
}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 0;font-size:18px;font-weight:700;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";flex:0 0 auto;width:10px;height:10px;margin-right:4px;
  border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);
  transform:rotate(45deg);transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg);}
.faq-body{padding:0 0 22px;font-size:15.5px;color:var(--muted);line-height:1.85;}

/* ===== CTA ===== */
.cta-card{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
  padding:56px;border-radius:32px;
  background:linear-gradient(135deg,rgba(108,92,231,.92) 0%,rgba(0,216,192,.78) 100%);
  box-shadow:var(--shadow-lg);
}
.cta-card::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(620px 320px at 86% 8%,rgba(255,255,255,.2),transparent 62%);
}
.cta-text{position:relative;z-index:2;}
.cta-text h2{font-size:clamp(26px,3.4vw,38px);font-weight:800;margin-bottom:12px;}
.cta-text p{font-size:16px;color:rgba(255,255,255,.88);}
.cta-form{position:relative;z-index:2;display:grid;gap:12px;}
.form-row{display:flex;gap:10px;}
.input{
  width:100%;height:52px;padding:0 22px;border-radius:999px;
  background:rgba(11,14,31,.55);
  border:1px solid rgba(255,255,255,.24);
  color:var(--text);font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.input::placeholder{color:rgba(245,247,255,.6);}
.input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(0,216,192,.25);}
.input:disabled{opacity:.5;cursor:not-allowed;}
.cta-form.is-error .input{border-color:var(--highlight);box-shadow:0 0 0 3px rgba(255,178,94,.2);}
.cta-form.is-success .input{border-color:var(--accent);}
.form-msg{min-height:20px;font-size:13.5px;color:rgba(255,255,255,.88);}
.cta-form.is-error .form-msg{color:#FFE0B8;}
.form-note{font-size:12.5px;color:rgba(255,255,255,.72);}

/* ===== 页脚 ===== */
.site-footer{
  margin-top:96px;padding:72px 0 32px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(17,21,46,.62),rgba(11,14,31,1));
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand p{margin-top:16px;max-width:340px;font-size:14.5px;color:var(--muted);line-height:1.9;}
.footer-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:16px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14.5px;color:var(--muted);}
.footer-links a:hover{color:var(--accent);}
.footer-sub{display:flex;gap:8px;margin-top:14px;}
.footer-sub .input{height:42px;font-size:14px;background:var(--surface-2);border-color:var(--line);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;
  margin-top:48px;padding-top:24px;
  border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--dim);
}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  .section{padding:72px 0;}
  .intro-grid{grid-template-columns:1fr;gap:36px;}
  .cta-card{grid-template-columns:1fr;padding:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .feature-card:nth-child(n){grid-column:span 6;}
  .page-hero{padding:140px 0 76px;}
}
@media (max-width:767px){
  .site-nav{top:10px;width:calc(100% - 20px);}
  .nav-inner{grid-template-columns:1fr auto;padding:8px 10px 8px 16px;}
  .nav-menu{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    padding:12px;border-radius:24px;
    background:rgba(11,14,31,.96);
    border:1px solid var(--line);
    box-shadow:var(--shadow-lg);
  }
  .nav-menu.is-open{display:flex;}
  .nav-link{padding:13px 16px;font-size:15px;}
  .nav-link.is-active::after{left:16px;transform:none;}
  .nav-toggle{display:inline-flex;}
  .nav-cta .btn-sm{display:none;}
  .page-hero{padding:118px 0 62px;min-height:auto;}
  .page-hero h1{font-size:clamp(30px,8.5vw,40px);}
  .hero-sub{font-size:16px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .stats-strip{margin-top:-30px;}
  .stat{min-width:170px;}
  .hero-actions{flex-direction:column;gap:12px;}
  .hero-actions .btn{width:100%;}
  .feature-card:nth-child(n){grid-column:span 12;}
  .card-body{padding:20px;}
  .tl-item{grid-template-columns:1fr;gap:8px;padding:22px;}
  .faq-item{padding:0 18px;}
  .faq-item summary{font-size:16.5px;padding:18px 0;}
  .cta-card{padding:28px;border-radius:24px;}
  .form-row{flex-direction:column;}
  .form-row .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:10px;font-size:12.5px;}
  .site-footer{margin-top:64px;padding:56px 0 28px;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .brand-text{font-size:15.5px;}
  .brand-text em{font-size:11.5px;}
  .stat-num{font-size:26px;}
  .card-title{font-size:18px;}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --bg-deep:#0B0E1F;
  --bg-2:#11152E;
  --surface:#151A36;
  --surface-2:#1D2347;
  --primary:#6C5CE7;
  --accent:#00D8C0;
  --highlight:#FFB25E;
  --text:#F5F7FF;
  --muted:#AEB6D9;
  --dim:#737CA8;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --grad-main:linear-gradient(135deg,#6C5CE7 0%,#00D8C0 100%);
  --grad-hot:linear-gradient(135deg,#FFB25E 0%,#6C5CE7 100%);
  --r-lg:28px;
  --r-md:20px;
  --r-sm:14px;
  --r-pill:999px;
  --shadow:0 24px 80px rgba(0,0,0,.45);
  --shadow-hover:0 28px 90px rgba(108,92,231,.25);
  --gap:24px;
  --sec:96px;
  --nav-h:64px;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--bg-deep);
  background-image:
    radial-gradient(1100px 620px at 82% -12%,rgba(108,92,231,.22),transparent 62%),
    radial-gradient(900px 520px at 2% 6%,rgba(0,216,192,.10),transparent 58%),
    linear-gradient(180deg,#0B0E1F 0%,#11152E 55%,#0B0E1F 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(1.4px 1.4px at 12% 18%,rgba(255,255,255,.30),transparent 100%),
    radial-gradient(1.2px 1.2px at 34% 62%,rgba(255,255,255,.22),transparent 100%),
    radial-gradient(1.6px 1.6px at 68% 28%,rgba(255,255,255,.26),transparent 100%),
    radial-gradient(1.2px 1.2px at 86% 74%,rgba(0,216,192,.30),transparent 100%),
    radial-gradient(1.4px 1.4px at 52% 88%,rgba(255,178,94,.24),transparent 100%);
  opacity:.75;
}
img{max-width:100%;display:block;}
a{color:var(--text);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--accent);}
a:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

/* ============ 容器与板块 ============ */
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
.section{padding:var(--sec) 0;position:relative;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--accent);
  text-transform:uppercase;
  margin-bottom:16px;
}
.eyebrow::before{
  content:"";width:22px;height:2px;border-radius:2px;background:var(--grad-main);display:inline-block;
}
h2.section-title{font-size:clamp(28px,4vw,44px);font-weight:800;margin-bottom:14px;}
.section-sub{font-size:17px;color:var(--muted);max-width:660px;}
.grad-text{
  background:var(--grad-main);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}

/* ============ 导航 ============ */
.site-nav{
  position:fixed;
  top:16px;
  left:50%;
  transform:translateX(-50%);
  width:min(1180px,calc(100% - 32px));
  z-index:90;
  border-radius:var(--r-pill);
  background:rgba(11,14,31,.72);
  border:1px solid var(--line);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:0 14px 44px rgba(0,0,0,.36);
  transition:background .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.site-nav.is-scrolled{
  background:rgba(11,14,31,.9);
  border-color:rgba(255,255,255,.14);
  box-shadow:0 18px 52px rgba(0,0,0,.5);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  height:var(--nav-h);
  padding:0 12px 0 20px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:26px;height:26px;border-radius:50%;
  background:var(--grad-main);
  position:relative;
  box-shadow:0 0 0 3px rgba(108,92,231,.18),0 0 22px rgba(0,216,192,.35);
  flex-shrink:0;
}
.brand-mark::after{
  content:"";position:absolute;inset:8px;border-radius:50%;background:var(--bg-deep);
}
.brand-text{display:flex;align-items:baseline;gap:2px;font-size:17px;letter-spacing:.02em;white-space:nowrap;}
.brand-text strong{font-weight:800;color:var(--text);}
.brand-text em{font-style:normal;font-weight:500;color:var(--accent);}
.brand:hover .brand-text strong{color:var(--accent);}
.nav-menu{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:40px;padding:0 18px;
  font-size:15px;font-weight:500;
  color:var(--muted);
  border-radius:var(--r-pill);
  transition:background .22s ease,color .22s ease;
  white-space:nowrap;
}
.nav-link:hover{background:rgba(108,92,231,.16);color:var(--text);}
.nav-link.is-active{color:var(--text);font-weight:700;}
.nav-link.is-active::after{
  content:"";position:absolute;left:18px;right:18px;bottom:4px;height:2px;border-radius:2px;background:var(--grad-main);
}
.nav-cta{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  cursor:pointer;
  padding:0;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  transition:background .22s ease,border-color .22s ease;
}
.nav-toggle:hover{background:rgba(108,92,231,.2);border-color:rgba(0,216,192,.5);}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .25s ease,opacity .25s ease;}
.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-open .nav-toggle span:nth-child(2){opacity:0;}
.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 28px;
  font-size:15px;font-weight:700;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,filter .22s ease,color .22s ease;
}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-primary{
  background:var(--grad-main);
  color:#08122A;
  box-shadow:0 14px 34px rgba(108,92,231,.32);
}
.btn-primary:hover{filter:brightness(1.05);transform:translateY(-1px);box-shadow:0 20px 46px rgba(108,92,231,.42);color:#08122A;}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{
  background:transparent;color:var(--text);border-color:var(--line);
}
.btn-ghost:hover{background:rgba(255,255,255,.06);border-color:var(--accent);color:var(--text);}
.btn-ghost:active{transform:scale(.98);}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 页面 Hero ============ */
.page-hero{
  position:relative;
  padding:150px 0 72px;
  overflow:hidden;
  isolation:isolate;
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  opacity:.30;
  z-index:-2;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,14,31,.78) 0%,rgba(11,14,31,.88) 58%,#0B0E1F 100%);
  z-index:-1;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--dim);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--dim);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:rgba(255,255,255,.24);}
.breadcrumb .current{color:var(--accent);font-weight:600;}
.page-hero h1{
  font-size:clamp(38px,5.4vw,64px);
  font-weight:800;
  line-height:1.2;
  margin-bottom:18px;
  letter-spacing:-.01em;
}
.page-hero .lead{
  font-size:18px;
  color:var(--muted);
  max-width:640px;
  margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 数据徽章 ============ */
.badge-row{
  display:flex;flex-wrap:wrap;gap:14px;
  margin-top:44px;
}
.stat-badge{
  display:flex;align-items:center;gap:12px;
  padding:14px 20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.stat-badge:hover{border-color:rgba(0,216,192,.45);transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.stat-dot{
  width:9px;height:9px;border-radius:50%;
  background:var(--highlight);
  box-shadow:0 0 0 4px rgba(255,178,94,.16);
  flex-shrink:0;
}
.stat-badge:nth-child(even) .stat-dot{background:var(--accent);box-shadow:0 0 0 4px rgba(0,216,192,.16);}
.stat-num{font-size:19px;font-weight:800;color:var(--text);line-height:1.2;}
.stat-label{font-size:13px;color:var(--dim);line-height:1.3;}

/* ============ 简介区 ============ */
.intro-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
}
.intro-copy p{color:var(--muted);font-size:17px;margin-bottom:18px;}
.intro-copy p:last-child{margin-bottom:0;}
.intro-visual{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  aspect-ratio:4/3;
  background:var(--surface);
}
.intro-visual img{width:100%;height:100%;object-fit:cover;opacity:.92;transition:transform .5s ease;}
.intro-visual:hover img{transform:scale(1.04);}
.intro-visual::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,14,31,0) 40%,rgba(11,14,31,.72) 100%);
}
.visual-caption{
  position:absolute;left:22px;right:22px;bottom:20px;z-index:2;
  font-size:14px;color:var(--muted);
}

/* ============ 服务通道卡片 ============ */
.service-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:32px;
}
.svc-card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.svc-card::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:2px;
  background:var(--grad-main);
  opacity:.8;
}
.svc-card:nth-child(even){margin-top:36px;}
.svc-card:nth-child(even)::before{background:var(--grad-hot);}
.svc-card:hover{transform:translateY(-4px);border-color:rgba(0,216,192,.45);box-shadow:var(--shadow-hover);}
.svc-media{overflow:hidden;aspect-ratio:16/9;background:var(--surface-2);}
.svc-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.svc-card:hover .svc-media img{transform:scale(1.03);}
.svc-body{padding:28px 28px 30px;display:flex;flex-direction:column;gap:14px;flex:1;}
.svc-body h3{font-size:21px;font-weight:700;}
.svc-body p{font-size:15px;color:var(--muted);}
.tag{
  display:inline-flex;align-items:center;
  align-self:flex-start;
  padding:5px 14px;
  font-size:12.5px;font-weight:700;letter-spacing:.04em;
  border-radius:var(--r-pill);
  border:1px solid rgba(255,178,94,.5);
  color:var(--highlight);
  background:rgba(255,178,94,.08);
}
.tag-accent{border-color:rgba(0,216,192,.5);color:var(--accent);background:rgba(0,216,192,.08);}
.tag-primary{border-color:rgba(108,92,231,.6);color:#B9B1FF;background:rgba(108,92,231,.14);}
.tick-list{display:flex;flex-direction:column;gap:9px;margin-top:2px;}
.tick-list li{
  position:relative;
  padding-left:22px;
  font-size:14.5px;
  color:var(--muted);
}
.tick-list li::before{
  content:"";
  position:absolute;left:2px;top:11px;
  width:8px;height:8px;border-radius:2px;
  background:var(--grad-main);
  transform:rotate(45deg);
}
.link-arrow{
  margin-top:auto;
  display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;font-weight:700;color:var(--accent);
}
.link-arrow::after{content:"→";transition:transform .22s ease;display:inline-block;}
.link-arrow:hover{color:var(--text);}
.link-arrow:hover::after{transform:translateX(4px);}

/* ============ 流程时间线 ============ */
.timeline{
  position:relative;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:28px;
  padding-top:16px;
}
.timeline::before{
  content:"";
  position:absolute;top:34px;left:6%;right:6%;height:1px;
  background:linear-gradient(90deg,rgba(108,92,231,.5),rgba(0,216,192,.5),rgba(255,178,94,.4));
}
.tl-item{position:relative;display:flex;flex-direction:column;gap:14px;}
.tl-num{
  width:52px;height:52px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:800;color:var(--text);
  background:var(--surface-2);
  border:1px solid var(--line);
  position:relative;z-index:2;
  box-shadow:0 0 0 6px rgba(11,14,31,.9);
}
.tl-item:nth-child(1) .tl-num{border-color:rgba(108,92,231,.7);}
.tl-item:nth-child(2) .tl-num{border-color:rgba(0,216,192,.6);}
.tl-item:nth-child(3) .tl-num{border-color:rgba(255,178,94,.6);}
.tl-item:nth-child(4) .tl-num{border-color:rgba(108,92,231,.7);}
.tl-body{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px 22px 24px;
  flex:1;
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.tl-body:hover{transform:translateY(-4px);border-color:rgba(0,216,192,.42);box-shadow:var(--shadow-hover);}
.tl-body h3{font-size:18px;margin-bottom:10px;}
.tl-body p{font-size:14.5px;color:var(--muted);}

/* ============ 对比表 ============ */
.compare{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.compare-table{width:100%;border-collapse:collapse;}
.compare-table caption{
  caption-side:top;
  text-align:left;
  padding:22px 24px 6px;
  font-size:13px;
  color:var(--dim);
}
.compare-table thead th{
  padding:16px 24px;
  text-align:left;
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--muted);
  background:rgba(108,92,231,.12);
  border-bottom:1px solid var(--line);
}
.compare-table tbody th{
  padding:18px 24px;
  text-align:left;
  font-size:15px;
  font-weight:700;
  color:var(--text);
  white-space:nowrap;
  border-bottom:1px solid var(--line-soft);
}
.compare-table tbody td{
  padding:18px 24px;
  font-size:15px;
  color:var(--muted);
  border-bottom:1px solid var(--line-soft);
}
.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td{border-bottom:0;}
.compare-table tbody tr{transition:background .22s ease;}
.compare-table tbody tr:hover{background:rgba(255,255,255,.03);}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:16px;max-width:900px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color .24s ease,box-shadow .24s ease,background .24s ease;
}
.faq-item[open]{
  border-color:rgba(0,216,192,.42);
  box-shadow:var(--shadow-hover);
  background:linear-gradient(180deg,rgba(108,92,231,.10),rgba(21,26,54,0) 60%),var(--surface);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:22px 56px 22px 26px;
  font-size:18px;
  font-weight:700;
  color:var(--text);
  position:relative;
  transition:color .22s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";
  position:absolute;right:24px;top:50%;
  width:10px;height:10px;
  border-right:2px solid var(--accent);
  border-bottom:2px solid var(--accent);
  transform:translateY(-70%) rotate(45deg);
  transition:transform .26s ease;
}
.faq-item[open] summary::after{transform:translateY(-20%) rotate(-135deg);}
.faq-item summary:hover{color:var(--accent);}
.faq-item summary:focus-visible{outline:2px solid var(--accent);outline-offset:-4px;}
.faq-answer{
  padding:0 26px 24px 26px;
  font-size:15px;
  color:var(--muted);
  line-height:1.85;
  border-left:3px solid transparent;
  border-image:var(--grad-main) 1;
  border-image-slice:1;
  margin-left:0;
}

/* ============ CTA / 订阅 ============ */
.cta-card{
  position:relative;
  border-radius:32px;
  padding:56px 48px;
  background:
    radial-gradient(700px 320px at 12% 0%,rgba(108,92,231,.42),transparent 62%),
    radial-gradient(600px 300px at 92% 100%,rgba(0,216,192,.28),transparent 60%),
    linear-gradient(135deg,#1B1F44 0%,#151A36 100%);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:40px;
  align-items:center;
  overflow:hidden;
}
.cta-card::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:2px;
  background:var(--grad-hot);
  opacity:.85;
}
.cta-card h2{font-size:clamp(26px,3.2vw,36px);font-weight:800;margin-bottom:14px;}
.cta-card p{color:var(--muted);font-size:16px;}
.sub-form{display:flex;flex-wrap:wrap;gap:12px;}
.input{
  flex:1 1 220px;
  height:50px;
  padding:0 22px;
  font-size:15px;
  font-family:inherit;
  color:var(--text);
  background:var(--surface-2);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.input::placeholder{color:var(--dim);}
.input:hover{border-color:rgba(255,255,255,.2);}
.input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px rgba(0,216,192,.16);}
.input.is-error{border-color:var(--highlight);box-shadow:0 0 0 4px rgba(255,178,94,.16);}
.input.is-success{border-color:var(--accent);box-shadow:0 0 0 4px rgba(0,216,192,.16);}
.input:disabled{opacity:.5;cursor:not-allowed;}
.form-hint{
  flex:1 1 100%;
  font-size:13px;
  color:var(--dim);
  line-height:1.7;
}
.form-hint.is-error{color:var(--highlight);}
.form-hint.is-success{color:var(--accent);}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,14,31,0) 0%,rgba(11,14,31,.92) 40%);
  padding:72px 0 32px;
  margin-top:24px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid var(--line-soft);
}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  color:var(--muted);
  max-width:340px;
  line-height:1.8;
}
.footer-title{
  font-size:15px;
  font-weight:700;
  color:var(--text);
  margin-bottom:18px;
}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:var(--muted);}
.footer-links a:hover{color:var(--accent);}
.footer-sub{display:flex;gap:8px;margin-top:14px;}
.footer-sub .input{height:42px;font-size:13.5px;padding:0 16px;flex:1 1 auto;min-width:0;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  padding-top:26px;
  font-size:13px;
  color:var(--dim);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--sec:80px;}
  .service-grid{gap:26px;}
}
@media (max-width:1023px){
  :root{--sec:72px;}
  .container{padding:0 22px;}
  .intro-grid{grid-template-columns:1fr;gap:34px;}
  .timeline{grid-template-columns:repeat(2,1fr);gap:22px;}
  .timeline::before{display:none;}
  .cta-card{grid-template-columns:1fr;padding:44px 34px;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:900px){
  .nav-menu{
    position:absolute;
    top:calc(100% + 12px);
    left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:14px;
    border-radius:24px;
    background:rgba(11,14,31,.96);
    border:1px solid var(--line);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    box-shadow:0 24px 60px rgba(0,0,0,.5);
    transform:translateY(-8px);
    opacity:0;
    visibility:hidden;
    transition:opacity .24s ease,transform .24s ease,visibility .24s ease;
  }
  .nav-menu.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-link{height:48px;font-size:15.5px;border-radius:14px;padding:0 16px;}
  .nav-link.is-active::after{display:none;}
  .nav-link.is-active{background:rgba(108,92,231,.18);}
  .nav-toggle{display:flex;}
  .nav-cta .btn-primary{display:none;}
}
@media (max-width:768px){
  :root{--sec:56px;}
  body{line-height:1.8;}
  .page-hero{padding:126px 0 52px;}
  .page-hero h1{font-size:clamp(30px,8vw,40px);}
  .page-hero .lead{font-size:16.5px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{width:100%;}
  .badge-row{
    flex-wrap:nowrap;
    overflow-x:auto;
    padding-bottom:8px;
    margin-top:34px;
    scrollbar-width:thin;
    -webkit-overflow-scrolling:touch;
  }
  .stat-badge{flex:0 0 auto;}
  .service-grid{grid-template-columns:1fr;}
  .svc-card:nth-child(even){margin-top:0;}
  .timeline{grid-template-columns:1fr;}
  .compare{background:transparent;border:0;border-radius:0;box-shadow:none;}
  .compare-table caption{padding:0 0 14px;}
  .compare-table,.compare-table thead,.compare-table tbody,.compare-table tr,.compare-table th,.compare-table td{display:block;width:100%;}
  .compare-table thead{display:none;}
  .compare-table tbody tr{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-md);
    margin-bottom:16px;
    padding:6px 0 10px;
    overflow:hidden;
  }
  .compare-table tbody th{
    padding:14px 20px;
    border-bottom:1px solid var(--line);
    background:rgba(108,92,231,.12);
    white-space:normal;
  }
  .compare-table tbody td{border-bottom:0;padding:12px 20px;}
  .compare-table tbody td::before{
    content:attr(data-label);
    display:block;
    font-size:12px;
    color:var(--dim);
    margin-bottom:4px;
    letter-spacing:.04em;
  }
  .faq-item summary{font-size:16.5px;padding:18px 48px 18px 20px;}
  .faq-answer{padding:0 20px 20px 20px;font-size:14.5px;}
  .cta-card{padding:36px 24px;border-radius:26px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .brand-text{font-size:15.5px;}
  .section-head{margin-bottom:34px;}
  .svc-body{padding:22px 20px 24px;}
  .service-grid{gap:20px;}
  .btn{height:48px;font-size:14.5px;}
  .input{height:48px;}
}