/* roulang page: index */
:root{
  --bg-void:#070A16;
  --bg-deep:#0D1330;
  --bg-elev:#141B3D;
  --panel:rgba(255,255,255,.055);
  --panel-2:rgba(255,255,255,.09);
  --line:rgba(148,166,255,.16);
  --line-strong:rgba(148,166,255,.34);
  --primary:#7C6CFF;
  --primary-deep:#4B3FD6;
  --accent:#FF7A45;
  --accent-soft:rgba(255,122,69,.16);
  --text:#EDF1FF;
  --text-2:#B7C1E0;
  --muted:#8B96B8;
  --paper:#F5F7FF;
  --ink:#1A2040;
  --r-lg:20px;
  --r-sm:14px;
  --shadow:0 18px 44px -28px rgba(6,10,28,.9);
  --shadow-hover:0 26px 60px -26px rgba(124,108,255,.45);
  --t:220ms cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg-void);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.75;
  background-image:
    radial-gradient(1.2px 1.2px at 18px 26px, rgba(255,255,255,.50), transparent 60%),
    radial-gradient(1px 1px at 118px 88px, rgba(180,196,255,.40), transparent 60%),
    radial-gradient(1.4px 1.4px at 66px 152px, rgba(255,255,255,.30), transparent 60%),
    radial-gradient(1px 1px at 196px 42px, rgba(255,122,69,.35), transparent 60%);
  background-size:180px 180px,220px 220px,260px 260px,300px 300px;
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.30;
  background-image:
    linear-gradient(rgba(148,166,255,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148,166,255,.055) 1px, transparent 1px);
  background-size:64px 64px;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:8px}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px;position:relative;z-index:2}
.section{padding:clamp(56px,8vw,108px) 0;position:relative}
.section--line{border-top:1px solid var(--line)}
.section--deep{background:linear-gradient(180deg,rgba(13,19,48,.75),rgba(7,10,22,0))}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.sec-eyebrow{display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.18em;color:var(--accent);margin-bottom:10px}
.sec-head h2{font-size:clamp(24px,3.4vw,36px);line-height:1.25}
.sec-head p{color:var(--text-2);font-size:15px;max-width:620px;margin-top:10px}
.text-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--primary);transition:color var(--t),gap var(--t)}
.text-link:hover{color:#9C90FF;gap:12px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:999px;font-size:14.5px;font-weight:700;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:transform var(--t),background var(--t),border-color var(--t),box-shadow var(--t),color var(--t),filter var(--t)}
.btn-primary{background:linear-gradient(135deg,#FF8B5C,#FF6A32);color:#1A1008;box-shadow:0 0 0 1px rgba(255,122,69,.5),0 14px 40px -14px rgba(255,122,69,.7)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);background:rgba(124,108,255,.10);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:38px;padding:0 18px;font-size:13.5px}

/* ---------- 导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:70;background:rgba(7,10,22,.66);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line);transition:background var(--t),box-shadow var(--t)}
.site-header.is-scrolled{background:rgba(7,10,22,.93);box-shadow:0 14px 40px -28px rgba(0,0,0,.95)}
.nav-wrap{max-width:1200px;margin:0 auto;padding:0 40px;height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{width:37px;height:37px;border-radius:11px;background:linear-gradient(140deg,var(--primary),var(--primary-deep) 72%);display:grid;place-items:center;position:relative;overflow:hidden;box-shadow:0 10px 24px -14px rgba(124,108,255,.95)}
.brand-mark::after{content:"";position:absolute;inset:0;background:radial-gradient(13px 13px at 72% 24%,rgba(255,255,255,.85),transparent 70%)}
.brand-mark i{position:relative;z-index:1;color:#fff;font-size:15px}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-main{font-size:18px;font-weight:800;letter-spacing:.02em}
.brand-sub{font-size:10.5px;font-weight:600;letter-spacing:.2em;color:var(--muted);margin-top:3px}
.nav-links{display:flex;align-items:center;gap:2px;justify-content:center;flex:1}
.nav-links a{position:relative;padding:9px 12px;font-size:14.5px;color:var(--text-2);border-radius:9px;transition:color var(--t),background var(--t)}
.nav-links a:hover{color:var(--text);background:rgba(124,108,255,.10)}
.nav-links a.active{color:var(--text);font-weight:600}
.nav-links a.active::after{content:"";position:absolute;left:12px;right:12px;bottom:1px;height:3px;border-radius:999px;background:var(--accent)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.mobile-tabs{display:none}

/* ---------- Hero ---------- */
.hero{position:relative;padding-top:118px;padding-bottom:clamp(48px,7vw,88px);overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(820px 460px at 14% 8%,rgba(124,108,255,.24),transparent 70%),radial-gradient(640px 400px at 88% 0%,rgba(255,122,69,.13),transparent 72%)}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:clamp(28px,4vw,56px);align-items:center}
.hero-tag{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;background:var(--accent-soft);border:1px solid rgba(255,122,69,.32);color:var(--accent);font-size:12.5px;font-weight:600;letter-spacing:.06em;margin-bottom:20px}
.hero h1{font-size:clamp(30px,4.3vw,50px);line-height:1.18;font-weight:800;letter-spacing:-.01em;max-width:14em}
.hero-sub{font-size:clamp(15.5px,1.4vw,17.5px);line-height:1.75;color:var(--text-2);max-width:600px;margin-top:20px}
.hero-actions{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.hero-metrics{display:flex;gap:26px;list-style:none;padding:0;margin:36px 0 0;flex-wrap:wrap}
.hero-metrics li{display:flex;flex-direction:column;padding-left:20px;border-left:1px solid var(--line-strong)}
.hero-metrics li:first-child{border-left:0;padding-left:0}
.hero-metrics .num{font-size:22px;font-weight:800;line-height:1.2}
.hero-metrics .lbl{font-size:11px;letter-spacing:.08em;color:var(--muted);margin-top:3px}
.hero-visual{position:relative}
.hero-figure{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-figure::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,10,22,.86) 0%,rgba(7,10,22,.18) 52%,rgba(7,10,22,.06) 100%)}
.hero-float{position:absolute;left:-18px;bottom:-24px;width:min(300px,86%);padding:16px 18px;border-radius:16px;background:rgba(20,27,61,.82);border:1px solid var(--line-strong);backdrop-filter:blur(14px);box-shadow:0 24px 50px -30px rgba(0,0,0,.95);display:flex;gap:12px;align-items:flex-start;z-index:3}
.hero-float .hf-icon{width:34px;height:34px;flex-shrink:0;border-radius:10px;display:grid;place-items:center;background:rgba(124,108,255,.22);color:#C3BAFF;font-size:14px}
.hero-float strong{display:block;font-size:13.5px;font-weight:700;line-height:1.4}
.hero-float span{display:block;font-size:12px;color:var(--muted);margin-top:4px;line-height:1.6}

/* ---------- 主张条 ---------- */
.claims{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.claim{padding:0 clamp(16px,2.4vw,32px);border-left:1px solid var(--line)}
.claim:first-child{border-left:0;padding-left:0}
.claim-idx{font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--accent);margin-bottom:12px;display:block}
.claim h3{font-size:19px;font-weight:700;margin-bottom:10px}
.claim p{font-size:14.5px;line-height:1.8;color:var(--text-2)}

/* ---------- 图文故事 ---------- */
.story{display:grid;grid-template-columns:4fr 6fr;gap:clamp(24px,4vw,56px);align-items:center}
.story--flip{grid-template-columns:6fr 4fr}
.story--flip .story-media{order:2}
.story--flip .story-copy{order:1}
.story-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.story-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform 500ms cubic-bezier(.2,.7,.3,1)}
.story-media:hover img{transform:scale(1.03)}
.story-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,10,22,.05),rgba(7,10,22,.55))}
.story-copy h2{font-size:clamp(24px,3.2vw,34px);line-height:1.26;margin-bottom:18px}
.story-copy p{font-size:15.5px;line-height:1.85;color:var(--text-2);margin-bottom:16px;max-width:640px}
.story-copy .text-link{margin-top:6px}

/* ---------- 卡片 ---------- */
.card{position:relative;display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;transition:transform var(--t),border-color var(--t),box-shadow var(--t),background var(--t)}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);background:var(--panel-2)}
.card-media{position:relative;overflow:hidden}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 480ms cubic-bezier(.2,.7,.3,1)}
.card:hover .card-media img{transform:scale(1.045)}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(7,10,22,.78))}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:18px;font-weight:700;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-desc{font-size:14.5px;line-height:1.75;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted);letter-spacing:.04em;margin-top:auto;padding-top:6px}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:8px;font-size:12px;font-weight:600;letter-spacing:.04em;background:var(--accent-soft);color:var(--accent);width:fit-content}
.badge--violet{background:rgba(124,108,255,.18);color:#B9B0FF}
.feature-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.f-large{grid-column:span 7;grid-row:span 2}
.f-small{grid-column:span 5}
.f-wide{grid-column:span 12}
.f-wide .card{flex-direction:row}
.f-wide .card-media{width:42%;flex-shrink:0}
.f-wide .card-media img{height:100%;aspect-ratio:auto;min-height:220px}
@media(max-width:1024px){
  .feature-grid{grid-template-columns:repeat(6,1fr)}
  .f-large{grid-column:span 6;grid-row:auto}
  .f-small{grid-column:span 3}
  .f-wide{grid-column:span 6}
  .f-wide .card{flex-direction:column}
  .f-wide .card-media{width:100%}
  .f-wide .card-media img{aspect-ratio:16/10;min-height:0}
}

/* ---------- CMS 列表 ---------- */
.cms-layout{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start}
.cms-lead-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;transition:transform var(--t),border-color var(--t),box-shadow var(--t),background var(--t);height:100%}
.cms-lead-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);background:var(--panel-2)}
.cms-lead-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.cms-lead-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:12px}
.cms-lead-body h3{font-size:21px;line-height:1.45;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-lead-body p{font-size:14.5px;line-height:1.78;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-side{display:flex;flex-direction:column;gap:16px}
.cms-side-item{display:flex;flex-direction:column;gap:9px;padding:18px 20px;border-radius:var(--r-sm);background:var(--panel);border:1px solid var(--line);transition:transform var(--t),border-color var(--t),background var(--t),box-shadow var(--t)}
.cms-side-item:hover{transform:translateY(-3px);border-color:var(--line-strong);background:var(--panel-2);box-shadow:var(--shadow-hover)}
.cms-side-item h3{font-size:16px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-side-item p{font-size:13.5px;line-height:1.7;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-side-item time,.cms-lead-body time{font-size:12px;color:var(--muted);letter-spacing:.04em}
.cms-empty{display:flex;flex-direction:column;align-items:center;gap:16px;padding:52px 24px;border:1px dashed var(--line-strong);border-radius:var(--r-lg);background:rgba(255,255,255,.02);text-align:center}
.cms-empty p{font-size:15px;color:var(--text-2)}

/* ---------- 信任 / 数据 ---------- */
.trust-grid{display:grid;grid-template-columns:5fr 7fr;gap:clamp(28px,4vw,56px);align-items:center}
.trust-nums{display:flex;flex-direction:column;gap:22px}
.trust-item{display:flex;align-items:baseline;gap:14px;padding-bottom:22px;border-bottom:1px solid var(--line)}
.trust-item:last-child{border-bottom:0;padding-bottom:0}
.trust-item strong{font-size:34px;font-weight:800;line-height:1;color:var(--text)}
.trust-item strong em{font-size:15px;font-style:normal;color:var(--accent);margin-left:3px}
.trust-item span{font-size:13px;color:var(--muted);letter-spacing:.04em}
.trust-quote{padding:26px 28px;border-radius:var(--r-lg);background:var(--panel);border:1px solid var(--line);backdrop-filter:blur(12px)}
.trust-quote p{font-size:16px;line-height:1.85;color:var(--text-2);position:relative;padding-left:20px}
.trust-quote p::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:999px;background:var(--accent)}
.trust-quote footer{margin-top:16px;font-size:13px;color:var(--muted);padding-left:20px}
.trust-strip{margin-top:38px;display:flex;flex-wrap:wrap;gap:14px 34px;padding:16px 24px;border-radius:999px;background:var(--panel);border:1px solid var(--line);backdrop-filter:blur(12px);font-size:13px;color:var(--text-2)}
.trust-strip span{display:inline-flex;align-items:center;gap:8px}
.trust-strip i{color:var(--primary);font-size:12px}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;margin:0 auto}
.faq-item{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;transition:border-color var(--t),background var(--t)}
.faq-item[open]{border-color:var(--line-strong);background:var(--panel-2);box-shadow:inset 3px 0 0 var(--accent)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 22px;font-size:16px;font-weight:600;transition:color var(--t)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:#fff}
.faq-item summary .faq-icon{flex-shrink:0;width:22px;height:22px;position:relative;transition:transform var(--t)}
.faq-item summary .faq-icon::before,.faq-item summary .faq-icon::after{content:"";position:absolute;background:var(--accent);border-radius:2px}
.faq-item summary .faq-icon::before{left:0;right:0;top:10px;height:2px}
.faq-item summary .faq-icon::after{top:0;bottom:0;left:10px;width:2px;transition:transform var(--t)}
.faq-item[open] summary .faq-icon::after{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:26px;padding:clamp(32px,4.5vw,56px);background:linear-gradient(120deg,rgba(124,108,255,.20),rgba(255,122,69,.10));border:1px solid var(--line-strong);backdrop-filter:blur(14px);display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,48px);align-items:center}
.cta-band::before{content:"";position:absolute;inset:0;background:radial-gradient(520px 260px at 88% 20%,rgba(255,122,69,.20),transparent 70%);pointer-events:none}
.cta-band h2{position:relative;font-size:clamp(24px,3.2vw,34px);line-height:1.28}
.cta-band p{position:relative;margin-top:14px;font-size:15px;line-height:1.8;color:var(--text-2);max-width:520px}
.sub-form{position:relative;display:flex;gap:8px;padding:5px;border-radius:999px;background:rgba(7,10,22,.55);border:1px solid var(--line-strong);height:56px;transition:border-color var(--t),box-shadow var(--t)}
.sub-form:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,122,69,.22)}
.sub-form input{flex:1;min-width:0;background:transparent;border:0;outline:none;color:var(--text);font-size:14.5px;padding:0 18px}
.sub-form input::placeholder{color:var(--muted)}
.form-note{position:relative;margin-top:12px;font-size:12.5px;color:var(--muted)}
.form-feedback{position:relative;margin-top:10px;font-size:13px;color:var(--accent);min-height:18px}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--bg-deep);border-top:1px solid var(--line);padding-top:64px;margin-top:clamp(48px,7vw,92px)}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.5fr;gap:40px;padding-bottom:48px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--muted);margin-top:16px;max-width:320px}
.footer-col h3{font-size:14px;font-weight:600;margin-bottom:18px;position:relative;padding-top:12px}
.footer-col h3::before{content:"";position:absolute;top:0;left:0;width:24px;height:2px;border-radius:999px;background:var(--accent)}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:var(--text-2);transition:color var(--t),padding-left var(--t)}
.footer-col a:hover{color:var(--accent);padding-left:4px}
.footer-col p{font-size:13.5px;line-height:1.8;color:var(--muted)}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12px;color:var(--muted)}

/* ---------- 响应式 ---------- */
@media(max-width:1100px){
  .nav-links a{padding:8px 9px;font-size:13.5px}
  .nav-actions .btn-ghost{display:none}
}
@media(max-width:960px){
  .container{padding:0 28px}
  .nav-wrap{padding:0 28px}
  .nav-links{display:none}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero h1{max-width:none}
  .hero-float{left:14px;bottom:14px;width:min(280px,82%)}
  .claims{grid-template-columns:1fr;gap:24px}
  .claim{border-left:0;padding-left:0;padding-bottom:24px;border-bottom:1px solid var(--line)}
  .claim:last-child{border-bottom:0;padding-bottom:0}
  .story,.story--flip{grid-template-columns:1fr;gap:24px}
  .story--flip .story-media{order:1}
  .story--flip .story-copy{order:2}
  .cms-layout{grid-template-columns:1fr}
  .trust-grid{grid-template-columns:1fr;gap:32px}
  .cta-band{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  body{padding-bottom:88px}
  .mobile-tabs{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:80;height:64px;padding-bottom:env(safe-area-inset-bottom);background:rgba(9,13,30,.94);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-top:1px solid var(--line)}
  .mobile-tabs a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:11px;color:var(--muted);transition:color var(--t)}
  .mobile-tabs a i{font-size:16px}
  .mobile-tabs a.active{color:var(--accent)}
}
@media(max-width:640px){
  .container{padding:0 20px}
  .nav-wrap{padding:0 20px;height:62px}
  .brand-main{font-size:16px}
  .brand-sub{font-size:9.5px;letter-spacing:.16em}
  .hero{padding-top:100px}
  .hero-actions .btn{flex:1;min-width:140px}
  .feature-grid{grid-template-columns:1fr}
  .f-large,.f-small,.f-wide{grid-column:span 1}
  .trust-strip{border-radius:16px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .cta-band{padding:28px 22px;border-radius:20px}
  .sub-form{height:52px;flex-direction:column;border-radius:18px;padding:8px}
  .sub-form input{height:40px;width:100%}
  .sub-form .btn{width:100%}
  .faq-item summary{padding:16px 18px;font-size:15px}
  .faq-item .faq-body{padding:0 18px 18px;font-size:14.5px}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --bg-void:#070A16;
  --bg-deep:#0D1330;
  --bg-elev:#141B3D;
  --panel:rgba(255,255,255,0.055);
  --panel-2:rgba(255,255,255,0.09);
  --line:rgba(148,166,255,0.16);
  --line-strong:rgba(148,166,255,0.34);
  --primary:#7C6CFF;
  --primary-deep:#4B3FD6;
  --accent:#FF7A45;
  --accent-soft:rgba(255,122,69,0.16);
  --text:#EDF1FF;
  --text-2:#B7C1E0;
  --muted:#8B96B8;
  --paper:#F5F7FF;
  --ink:#1A2040;
  --r-lg:20px;
  --r-sm:14px;
  --shadow:0 18px 44px -28px rgba(6,10,28,.9);
  --shadow-hover:0 26px 60px -26px rgba(124,108,255,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  background-color:var(--bg-void);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  padding-top:68px;
  overflow-x:hidden;
  background-image:
    radial-gradient(1100px 620px at 10% -12%, rgba(124,108,255,.20), transparent 72%),
    radial-gradient(900px 520px at 92% -4%, rgba(255,122,69,.09), transparent 70%);
  background-repeat:no-repeat;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(1.6px 1.6px at 18% 22%, rgba(237,241,255,.42), transparent 100%),
    radial-gradient(1.4px 1.4px at 72% 12%, rgba(237,241,255,.32), transparent 100%),
    radial-gradient(1px 1px at 42% 68%, rgba(237,241,255,.26), transparent 100%),
    radial-gradient(1.6px 1.6px at 88% 58%, rgba(237,241,255,.28), transparent 100%),
    radial-gradient(1px 1px at 8% 84%, rgba(237,241,255,.22), transparent 100%);
  background-repeat:no-repeat;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:22px}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:40px;padding-right:40px;position:relative;z-index:1}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;height:68px;z-index:80;
  background:rgba(9,13,30,.62);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background 220ms var(--ease),box-shadow 220ms var(--ease);
}
.site-header.is-scrolled{background:rgba(7,10,22,.9);box-shadow:0 12px 34px -22px rgba(0,0,0,.9)}
.nav-wrap{max-width:1200px;height:68px;margin:0 auto;padding:0 40px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),var(--primary-deep));
  color:#fff;font-size:15px;
  box-shadow:0 10px 24px -12px rgba(124,108,255,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-main{font-size:18px;font-weight:800;letter-spacing:.01em;color:var(--text)}
.brand-sub{font-size:11px;font-weight:600;letter-spacing:.16em;color:var(--muted);margin-top:3px}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  position:relative;display:inline-block;padding:8px 14px;border-radius:999px;
  font-size:15px;color:var(--text-2);
  transition:color 180ms var(--ease),background 180ms var(--ease);
}
.nav-links a:hover{color:var(--text);background:var(--panel-2)}
.nav-links a.active{color:var(--text);font-weight:600}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:3px;border-radius:3px;
  background:var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;white-space:nowrap;
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),background 200ms var(--ease),border-color 200ms var(--ease),color 200ms var(--ease),filter 200ms var(--ease);
}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-primary{
  background:var(--accent);color:#1A1008;
  box-shadow:0 0 0 1px rgba(255,122,69,.5),0 14px 40px -14px rgba(255,122,69,.7);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);background:rgba(124,108,255,.08);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-block{width:100%}

/* ---------- Breadcrumb ---------- */
.crumb-bar{padding:26px 0 0}
.breadcrumb{display:flex;align-items:center;flex-wrap:nowrap;gap:8px;font-size:13px;color:var(--muted);overflow:hidden}
.breadcrumb a{color:var(--muted);transition:color 180ms var(--ease)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(139,150,184,.55)}
.breadcrumb .cur{
  color:var(--text);max-width:min(52vw,420px);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}

/* ---------- Article head ---------- */
.article-head{padding:22px 0 34px;max-width:860px}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:8px;
  background:var(--accent-soft);color:var(--accent);font-size:12px;font-weight:700;letter-spacing:.04em;
}
.badge-soft{background:rgba(124,108,255,.16);color:#B7AEFF}
.article-title{
  font-size:clamp(26px,4.4vw,42px);font-weight:800;line-height:1.22;letter-spacing:-.01em;
  margin:16px 0 16px;color:var(--text);
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted);letter-spacing:.04em}
.meta-row i{color:var(--primary);margin-right:5px;font-size:12px}
.meta-row .divider{width:1px;height:12px;background:var(--line-strong)}

/* ---------- Reading panel ---------- */
.reading-wrap{padding-bottom:clamp(48px,7vw,88px)}
.paper{
  background:var(--paper);
  color:var(--ink);
  border-radius:var(--r-lg);
  padding:52px 60px;
  max-width:820px;
  margin:0 auto;
  box-shadow:0 40px 90px -46px rgba(0,0,0,.9);
}
.paper h2{font-size:24px;font-weight:800;line-height:1.35;margin:40px 0 14px;color:#111735}
.paper h3{font-size:19px;font-weight:700;line-height:1.45;margin:30px 0 12px;color:#1A2040}
.paper h4{font-size:17px;font-weight:700;margin:24px 0 10px;color:#1A2040}
.paper p{font-size:17px;line-height:1.9;margin:0 0 22px;color:#2A3157}
.paper ul,.paper ol{padding-left:22px;margin:0 0 22px}
.paper li{font-size:17px;line-height:1.85;margin-bottom:10px;color:#2A3157}
.paper blockquote{
  margin:26px 0;padding:14px 22px;border-left:3px solid var(--primary);
  background:rgba(124,108,255,.08);border-radius:0 12px 12px 0;color:#333C6B;
}
.paper blockquote p{margin:0;font-size:16px;line-height:1.85;color:#333C6B}
.paper img{border-radius:14px;margin:26px auto;max-width:100%;height:auto}
.paper a{color:var(--primary-deep);text-decoration:underline;text-underline-offset:3px}
.paper a:hover{color:#372CA8}
.paper strong{font-weight:800;color:#111735}
.paper code{background:rgba(26,32,64,.08);padding:2px 6px;border-radius:6px;font-size:15px}
.paper hr{border:0;border-top:1px solid rgba(26,32,64,.12);margin:34px 0}
.paper table{width:100%;border-collapse:collapse;margin:0 0 22px;font-size:15px}
.paper th,.paper td{border:1px solid rgba(26,32,64,.14);padding:10px 12px;text-align:left}
.paper th{background:rgba(124,108,255,.10);color:#111735;font-weight:700}
.paper > *:first-child{margin-top:0}

/* ---------- Empty state ---------- */
.empty-panel{
  max-width:820px;margin:0 auto;padding:56px 32px;text-align:center;
  border:1px dashed var(--line-strong);border-radius:var(--r-lg);background:var(--panel);
}
.empty-panel i{font-size:30px;color:var(--muted);margin-bottom:16px;display:block}
.empty-panel h2{font-size:22px;font-weight:800;margin-bottom:10px}
.empty-panel p{color:var(--text-2);font-size:15px;margin-bottom:22px}

/* ---------- Post actions ---------- */
.post-actions{
  max-width:820px;margin:30px auto 0;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  padding:18px 22px;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--panel);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.share-group{display:flex;align-items:center;gap:10px}
.share-group span{font-size:13px;color:var(--muted)}
.share-btn{
  width:38px;height:38px;border-radius:999px;display:grid;place-items:center;
  border:1px solid var(--line-strong);color:var(--text-2);background:transparent;
  transition:transform 200ms var(--ease),border-color 200ms var(--ease),color 200ms var(--ease),background 200ms var(--ease);
}
.share-btn:hover{color:var(--accent);border-color:var(--accent);background:var(--accent-soft);transform:translateY(-2px)}

/* ---------- Related ---------- */
.section{padding:clamp(48px,7vw,88px) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px}
.section-title{font-size:clamp(22px,3vw,32px);font-weight:800;line-height:1.3}
.section-desc{font-size:15px;color:var(--muted);margin-top:8px}
.text-link{color:var(--primary);font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:gap 200ms var(--ease),color 200ms var(--ease)}
.text-link:hover{color:var(--accent);gap:10px}

.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow);
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease),background 220ms var(--ease);
}
.rel-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);background:var(--panel-2)}
.rel-card h3{font-size:19px;font-weight:700;margin:14px 0 10px;line-height:1.4}
.rel-card p{font-size:15px;line-height:1.7;color:var(--text-2);margin-bottom:18px}
.rel-card .text-link{margin-top:auto;font-size:14px}

/* ---------- CTA band ---------- */
.cta-band{
  border:1px solid var(--line);border-radius:24px;padding:clamp(28px,4vw,48px);
  background:
    radial-gradient(700px 300px at 12% -30%, rgba(124,108,255,.28), transparent 70%),
    radial-gradient(520px 260px at 92% 130%, rgba(255,122,69,.18), transparent 70%),
    rgba(255,255,255,.045);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,3vw,30px);font-weight:800;line-height:1.32}
.cta-band p{color:var(--text-2);font-size:15px;margin-top:10px;max-width:520px}

/* ---------- Footer ---------- */
.site-footer{margin-top:clamp(48px,7vw,88px);border-top:1px solid var(--line);background:rgba(6,9,20,.72);position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:32px;padding:56px 0 40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.8;max-width:320px}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:18px;position:relative;padding-top:12px}
.footer-col h4::before{content:"";position:absolute;top:0;left:0;width:22px;height:2px;border-radius:2px;background:var(--accent)}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:11px}
.footer-col ul a{font-size:14px;color:var(--muted);transition:color 180ms var(--ease)}
.footer-col ul a:hover{color:var(--primary)}
.sub-form{display:flex;align-items:center;gap:8px;background:var(--panel);border:1px solid var(--line);border-radius:999px;padding:5px 5px 5px 18px;transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease)}
.sub-form:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,122,69,.22)}
.sub-form input{flex:1;min-width:0;height:38px;background:transparent;border:0;outline:none;color:var(--text);font-size:14px}
.sub-form input::placeholder{color:var(--muted)}
.sub-note{font-size:12px;color:var(--muted);margin-top:12px;line-height:1.7;min-height:18px}
.footer-bottom{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:12px;color:var(--muted)}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--primary)}

/* ---------- Mobile tab bar ---------- */
.tabbar{display:none}

@media (max-width:1024px){
  .container,.nav-wrap{padding-left:28px;padding-right:28px}
  .paper{padding:40px 34px}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
  .footer-col:last-child{grid-column:1/-1}
}
@media (max-width:900px){
  .nav-links{display:none}
  .nav-actions .btn-ghost{display:none}
  body{padding-bottom:92px}
  .tabbar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:90;
    height:64px;padding-bottom:env(safe-area-inset-bottom);
    background:rgba(7,10,22,.9);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
    border-top:1px solid var(--line);
  }
  .tabbar a{
    flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
    font-size:11px;color:var(--muted);letter-spacing:.02em;transition:color 180ms var(--ease);
  }
  .tabbar a i{font-size:16px}
  .tabbar a.active,.tabbar a:hover{color:var(--accent)}
}
@media (max-width:768px){
  .container,.nav-wrap{padding-left:20px;padding-right:20px}
  .brand-main{font-size:16px}
  .brand-sub{font-size:10px}
  .paper{padding:28px 20px;border-radius:18px}
  .paper p,.paper li{font-size:16px}
  .paper h2{font-size:21px;margin-top:32px}
  .paper h3{font-size:18px}
  .rel-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;padding:44px 0 32px}
  .footer-brand{grid-column:1/-1}
  .footer-col:last-child{grid-column:1/-1}
  .post-actions{flex-direction:column;align-items:flex-start}
  .cta-band{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .article-title{font-size:26px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .meta-row{font-size:12px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .tabbar a{font-size:10px}
}

/* roulang page: category1 */
:root{
  --bg-void:#070A16;
  --bg-deep:#0D1330;
  --bg-elev:#141B3D;
  --panel:rgba(255,255,255,.055);
  --panel-2:rgba(255,255,255,.09);
  --line:rgba(148,166,255,.16);
  --line-strong:rgba(148,166,255,.34);
  --primary:#7C6CFF;
  --primary-deep:#4B3FD6;
  --accent:#FF7A45;
  --accent-soft:rgba(255,122,69,.16);
  --text:#EDF1FF;
  --text-2:#B7C1E0;
  --muted:#8B96B8;
  --paper:#F5F7FF;
  --ink:#1A2040;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:10px;
  --shadow:0 18px 44px -28px rgba(6,10,28,.9);
  --shadow-hover:0 26px 60px -26px rgba(124,108,255,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--bg-void);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  padding-bottom:88px;
  overflow-x:hidden;
}
@media (min-width:1024px){body{padding-bottom:0}}
body::before{
  content:"";
  position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(900px 520px at 12% -8%,rgba(124,108,255,.22),transparent 70%),
    radial-gradient(760px 460px at 92% 4%,rgba(255,122,69,.11),transparent 72%),
    var(--bg-void);
}
body::after{
  content:"";
  position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.55;
  background-image:
    radial-gradient(rgba(255,255,255,.30) 1px,transparent 1px),
    radial-gradient(rgba(148,166,255,.18) 1px,transparent 1px);
  background-size:120px 120px,180px 180px;
  background-position:0 0,60px 90px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.85),rgba(0,0,0,.22) 60%,transparent);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.85),rgba(0,0,0,.22) 60%,transparent);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
::selection{background:rgba(255,122,69,.32);color:#fff}

/* ---------- container ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 28px}}
@media (min-width:1024px){.container{padding:0 40px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,10,22,.62);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.scrolled{background:rgba(7,10,22,.9);box-shadow:0 14px 34px -26px rgba(0,0,0,.95)}
.nav-wrap{
  max-width:1200px;margin:0 auto;padding:0 20px;height:68px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
@media (min-width:768px){.nav-wrap{padding:0 28px}}
@media (min-width:1024px){.nav-wrap{padding:0 40px}}
.brand{display:inline-flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),var(--primary-deep) 62%,#241E6B);
  box-shadow:0 10px 26px -14px rgba(124,108,255,.9),inset 0 0 0 1px rgba(255,255,255,.14);
  color:#fff;font-size:15px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-main{font-size:18px;font-weight:800;letter-spacing:.01em;color:var(--text)}
.brand-sub{font-size:11px;font-weight:600;letter-spacing:.16em;color:var(--muted);margin-top:3px}
.nav-links{display:none;align-items:center;gap:4px}
@media (min-width:1024px){.nav-links{display:flex}}
.nav-links a{
  position:relative;padding:10px 13px;font-size:14.5px;font-weight:600;color:var(--text-2);
  border-radius:10px;transition:color .2s var(--ease),background .2s var(--ease);
  white-space:nowrap;
}
.nav-links a:hover{color:var(--text);background:rgba(124,108,255,.10)}
.nav-links a.active{color:var(--accent)}
.nav-links a.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:3px;border-radius:3px;
  background:var(--accent);
}
.nav-actions{display:none;align-items:center;gap:10px}
@media (min-width:1024px){.nav-actions{display:flex}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:1px solid transparent;
  font-weight:800;font-size:15px;padding:13px 26px;
  cursor:pointer;white-space:nowrap;
  transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease),color .2s var(--ease);
}
.btn-primary{
  background:var(--accent);color:#1A1008;
  box-shadow:0 0 0 1px rgba(255,122,69,.5),0 14px 40px -14px rgba(255,122,69,.7);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-ghost{background:rgba(255,255,255,.02);color:var(--text);border-color:var(--line-strong)}
.btn-ghost:hover{border-color:var(--primary);background:rgba(124,108,255,.10);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:9px 18px;font-size:13.5px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none}

/* ---------- badges / breadcrumb ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;
  border-radius:8px;background:var(--accent-soft);color:var(--accent);
  font-size:12px;font-weight:700;letter-spacing:.04em;
}
.badge-soft{background:rgba(124,108,255,.16);color:#BEB4FF}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.crumbs a{color:var(--muted);transition:color .2s var(--ease)}
.crumbs a:hover{color:var(--primary)}
.crumbs span.sep{color:rgba(139,150,184,.55)}
.crumbs span.current{color:var(--text)}

/* ---------- hero ---------- */
.cat-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);padding:clamp(44px,6.5vw,88px) 0 clamp(36px,5.5vw,68px)}
.cat-hero .hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.3;
  filter:saturate(1.05);
}
.cat-hero .hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,22,.62),rgba(7,10,22,.93) 68%,var(--bg-void));
}
.cat-hero .container{position:relative;z-index:2}
.hero-inner{display:grid;grid-template-columns:1fr;gap:36px;align-items:end}
@media (min-width:1024px){.hero-inner{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px}}
h1.hero-title{
  font-size:clamp(30px,5.2vw,54px);
  font-weight:800;line-height:1.16;letter-spacing:-.01em;
  margin:18px 0 0;
}
h1.hero-title em{font-style:normal;color:var(--accent)}
.hero-lead{margin:18px 0 0;max-width:640px;font-size:16.5px;line-height:1.8;color:var(--text-2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-metrics{display:flex;flex-wrap:wrap;align-items:center;gap:0;margin-top:30px}
.hero-metrics .m{padding:0 22px;border-left:1px solid var(--line-strong)}
.hero-metrics .m:first-child{padding-left:0;border-left:none}
.hero-metrics .num{font-size:22px;font-weight:800;line-height:1.2;color:var(--text)}
.hero-metrics .lbl{display:block;font-size:11px;letter-spacing:.08em;color:var(--muted);margin-top:4px}
.hero-side{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  padding:24px;box-shadow:var(--shadow);
}
.hero-side h2{font-size:16px;font-weight:700;margin:0 0 14px;display:flex;align-items:center;gap:9px}
.hero-side h2 i{color:var(--accent);font-size:14px}
.hero-side ul{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.hero-side li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7}
.hero-side li i{color:var(--primary);font-size:12px;margin-top:6px;flex-shrink:0}
.hero-side .thumb{
  margin-top:20px;border-radius:var(--r-md);overflow:hidden;aspect-ratio:16/10;
  border:1px solid var(--line);
}
.hero-side .thumb img{width:100%;height:100%;object-fit:cover}

/* ---------- section base ---------- */
.section{padding:clamp(52px,7.5vw,104px) 0;position:relative}
.section + .section{border-top:1px solid var(--line)}
.sec-head{max-width:720px;margin-bottom:clamp(28px,4vw,44px)}
.sec-head .badge{margin-bottom:14px}
.sec-head h2{font-size:clamp(24px,3.3vw,36px);font-weight:700;line-height:1.28;margin:0;letter-spacing:-.005em}
.sec-head p{margin:14px 0 0;color:var(--text-2);font-size:16px;line-height:1.8;max-width:680px}

/* ---------- timeline ---------- */
.guide-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:1024px){.guide-grid{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px;align-items:start}}
.timeline{position:relative;list-style:none;margin:0;padding:0}
.timeline::before{
  content:"";position:absolute;left:19px;top:14px;bottom:18px;width:2px;
  background:linear-gradient(180deg,rgba(124,108,255,.75),rgba(255,122,69,.4),rgba(148,166,255,.05));
  border-radius:2px;
}
.tl-item{position:relative;padding:0 0 30px 62px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:0;top:0;width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;font-size:12.5px;font-weight:800;letter-spacing:.03em;
  background:var(--bg-elev);color:var(--text-2);
  border:1px solid var(--line-strong);
  box-shadow:0 0 0 6px rgba(7,10,22,.9);
  transition:color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.tl-item:hover .tl-dot{color:var(--accent);border-color:var(--accent);box-shadow:0 0 0 6px rgba(7,10,22,.9),0 0 22px -4px rgba(255,122,69,.6)}
.tl-body{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px 22px;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.tl-body:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);background:var(--panel-2)}
.tl-body h3{margin:0 0 8px;font-size:18px;font-weight:700;line-height:1.4}
.tl-body p{margin:0;font-size:15px;line-height:1.8;color:var(--text-2)}
.tl-body .tl-tag{display:inline-flex;margin-top:14px;font-size:12px;color:var(--muted);letter-spacing:.04em}

/* ---------- sticky card ---------- */
.sticky-card{position:static}
@media (min-width:1024px){.sticky-card{position:sticky;top:92px}}
.glass-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  padding:26px;box-shadow:var(--shadow);
}
.glass-card h3{margin:0 0 6px;font-size:19px;font-weight:700}
.glass-card .sub{margin:0 0 20px;font-size:14px;color:var(--muted)}
.check-list{list-style:none;margin:0;padding:0;display:grid;gap:16px}
.check-list li{display:flex;gap:12px}
.check-list .idx{
  flex-shrink:0;width:24px;height:24px;border-radius:8px;display:grid;place-items:center;
  background:var(--accent-soft);color:var(--accent);font-size:12px;font-weight:800;margin-top:2px;
}
.check-list strong{display:block;font-size:15px;font-weight:700;margin-bottom:3px}
.check-list span.txt{font-size:14px;color:var(--text-2);line-height:1.7}
.glass-card .foot-note{
  margin-top:22px;padding-top:18px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);line-height:1.7;
}

/* ---------- check section (image + list) ---------- */
.split-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:start}
@media (min-width:1024px){.split-grid{grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:52px}}
.figure-card{
  position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);aspect-ratio:16/10;
}
.figure-card img{width:100%;height:100%;object-fit:cover}
.figure-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,22,0) 34%,rgba(7,10,22,.86) 100%);
}
.figure-card .cap{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
  font-size:13.5px;color:var(--text-2);line-height:1.6;
}
.figure-card .cap b{color:var(--text);font-weight:700;display:block;margin-bottom:4px;font-size:15px}
.def-list{display:grid;gap:0}
.def-item{padding:20px 0;border-bottom:1px solid var(--line)}
.def-item:first-child{padding-top:0}
.def-item:last-child{border-bottom:none;padding-bottom:0}
.def-item h3{margin:0 0 8px;font-size:17px;font-weight:700;display:flex;align-items:center;gap:10px}
.def-item h3 i{color:var(--primary);font-size:13px}
.def-item p{margin:0;font-size:15px;line-height:1.85;color:var(--text-2);max-width:640px}

/* ---------- quality table ---------- */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  background:var(--panel);box-shadow:var(--shadow);
}
.q-table{width:100%;border-collapse:collapse;font-size:15px}
.q-table thead th{
  text-align:left;font-size:12.5px;letter-spacing:.08em;color:var(--muted);font-weight:700;
  padding:16px 20px;background:rgba(124,108,255,.08);border-bottom:1px solid var(--line);
}
.q-table tbody td{padding:18px 20px;border-bottom:1px solid var(--line);color:var(--text-2);vertical-align:top;line-height:1.75}
.q-table tbody tr:last-child td{border-bottom:none}
.q-table tbody tr{transition:background .2s var(--ease)}
.q-table tbody tr:hover{background:rgba(255,255,255,.03)}
.q-table td:first-child{color:var(--text);font-weight:700}
.q-table .pill{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:8px;
  background:rgba(124,108,255,.16);color:#BEB4FF;font-size:12.5px;font-weight:700;
}
.q-table .pill.hot{background:var(--accent-soft);color:var(--accent)}
@media (max-width:640px){
  .q-table thead{display:none}
  .q-table,.q-table tbody,.q-table tr,.q-table td{display:block;width:100%}
  .q-table tbody tr{border-bottom:1px solid var(--line);padding:6px 0}
  .q-table tbody tr:last-child{border-bottom:none}
  .q-table tbody td{border-bottom:none;padding:9px 18px}
  .q-table td:first-child{padding-top:16px}
  .q-table td:last-child{padding-bottom:16px}
}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:860px}
details.faq-item{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);
  padding:0 20px;position:relative;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
details.faq-item:hover{border-color:var(--line-strong);background:var(--panel-2)}
details.faq-item[open]{border-color:var(--line-strong);background:var(--panel-2)}
details.faq-item[open]::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;
  border-radius:3px;background:var(--accent);
}
details.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:18px 0;font-size:16px;font-weight:600;color:var(--text);
}
details.faq-item summary::-webkit-details-marker{display:none}
details.faq-item summary .plus{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line-strong);color:var(--text-2);font-size:12px;
  transition:transform .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
details.faq-item[open] summary .plus{transform:rotate(45deg);color:var(--accent);border-color:var(--accent)}
details.faq-item .faq-body{padding:0 0 20px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:720px}

/* ---------- cross links ---------- */
.cross-grid{display:grid;grid-template-columns:1fr;gap:18px}
@media (min-width:768px){.cross-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.cross-card{
  display:block;padding:24px;border-radius:var(--r-md);
  background:var(--panel);border:1px solid var(--line);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.cross-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);background:var(--panel-2)}
.cross-card .tag{display:inline-flex;font-size:12px;letter-spacing:.06em;color:var(--accent);font-weight:700;margin-bottom:10px}
.cross-card h3{margin:0 0 8px;font-size:18px;font-weight:700}
.cross-card p{margin:0;font-size:14.5px;line-height:1.75;color:var(--text-2)}
.cross-card .go{margin-top:16px;display:inline-flex;align-items:center;gap:7px;font-size:13.5px;font-weight:700;color:var(--primary)}
.cross-card:hover .go{color:var(--accent)}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid var(--line-strong);
  background:
    radial-gradient(600px 260px at 8% 0%,rgba(124,108,255,.30),transparent 70%),
    radial-gradient(520px 260px at 96% 100%,rgba(255,122,69,.20),transparent 72%),
    rgba(20,27,61,.72);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  padding:clamp(28px,4.5vw,52px);
  display:grid;grid-template-columns:1fr;gap:24px;align-items:center;
}
@media (min-width:900px){.cta-band{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:36px}}
.cta-band h2{margin:0;font-size:clamp(22px,3vw,32px);font-weight:800;line-height:1.3}
.cta-band p{margin:12px 0 0;font-size:15.5px;color:var(--text-2);line-height:1.8;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (min-width:900px){.cta-actions{justify-content:flex-end}}

/* ---------- footer ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(13,19,48,.72),rgba(7,10,22,.98));
  padding:clamp(44px,6vw,72px) 0 0;
  margin-top:clamp(40px,6vw,72px);
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.5fr;gap:40px}}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{margin:0 0 10px;font-size:14px;line-height:1.8;color:var(--text-2);max-width:330px}
.footer-col h4{margin:0 0 16px;font-size:14px;font-weight:600;position:relative;padding-top:12px}
.footer-col h4::before{
  content:"";position:absolute;top:0;left:0;width:22px;height:2px;border-radius:2px;background:var(--accent);
}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:11px}
.footer-col ul a{font-size:14px;color:var(--text-2);transition:color .2s var(--ease)}
.footer-col ul a:hover{color:var(--accent)}
.sub-form{display:flex;gap:8px;margin-top:14px}
.sub-form input{
  flex:1;min-width:0;height:44px;border-radius:999px;border:1px solid var(--line);
  background:var(--panel);color:var(--text);padding:0 16px;font-size:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.sub-form input::placeholder{color:var(--muted)}
.sub-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,122,69,.22)}
.sub-form .btn{padding:0 18px;height:44px;font-size:13.5px}
.sub-note{margin:12px 0 0;font-size:12.5px;color:var(--muted);line-height:1.7}
.footer-bottom{
  margin-top:clamp(30px,4vw,48px);border-top:1px solid var(--line);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px 24px;
  align-items:center;justify-content:space-between;
  font-size:12px;color:var(--muted);
}
.footer-bottom p{margin:0}

/* ---------- mobile tab ---------- */
.mobile-tab{display:none}
@media (max-width:1023px){
  .mobile-tab{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;
    min-height:64px;padding-bottom:env(safe-area-inset-bottom);
    background:rgba(7,10,22,.88);
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
    border-top:1px solid var(--line);
  }
  .mobile-tab a{
    flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
    gap:3px;padding:8px 2px;font-size:11px;color:var(--muted);
    transition:color .2s var(--ease);
  }
  .mobile-tab a i{font-size:16px;line-height:1}
  .mobile-tab a.active{color:var(--accent)}
}

/* roulang page: category2 */
:root{
  --bg-void:#070A16;
  --bg-deep:#0D1330;
  --bg-elev:#141B3D;
  --panel:rgba(255,255,255,.055);
  --panel-2:rgba(255,255,255,.09);
  --line:rgba(148,166,255,.16);
  --line-strong:rgba(148,166,255,.34);
  --primary:#7C6CFF;
  --primary-deep:#4B3FD6;
  --accent:#FF7A45;
  --accent-soft:rgba(255,122,69,.16);
  --text:#EDF1FF;
  --text-2:#B7C1E0;
  --muted:#8B96B8;
  --radius:20px;
  --radius-sm:14px;
  --shadow:0 18px 44px -28px rgba(6,10,28,.9);
  --shadow-hover:0 26px 60px -26px rgba(124,108,255,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:68px;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  background-color:var(--bg-void);
  color:var(--text);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(900px 520px at 12% -8%, rgba(124,108,255,.20), transparent 62%),
    radial-gradient(760px 460px at 92% 4%, rgba(255,122,69,.13), transparent 60%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='12' cy='18' r='1'/%3E%3Ccircle cx='68' cy='9' r='1'/%3E%3Ccircle cx='104' cy='42' r='1'/%3E%3Ccircle cx='34' cy='78' r='1'/%3E%3Ccircle cx='88' cy='96' r='1'/%3E%3Ccircle cx='16' cy='110' r='1'/%3E%3C/g%3E%3C/svg%3E");
  background-repeat:no-repeat,no-repeat,repeat;
  background-size:auto,auto,120px 120px;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media(min-width:768px){.container{padding:0 28px;}}
@media(min-width:1024px){.container{padding:0 40px;}}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  height:68px;
  background:rgba(9,13,32,.62);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:background-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{background:rgba(7,10,22,.92);box-shadow:0 14px 40px -30px rgba(0,0,0,.9);}
.nav-wrap{
  max-width:1200px;margin:0 auto;height:100%;
  padding:0 20px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
}
@media(min-width:1024px){.nav-wrap{padding:0 40px;}}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(124,108,255,.9),rgba(75,63,214,.65));
  color:#fff;font-size:16px;
  box-shadow:0 0 0 1px rgba(124,108,255,.45),0 10px 26px -14px rgba(124,108,255,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-main{font-size:18px;font-weight:800;letter-spacing:.02em;color:var(--text);}
.brand-sub{font-size:11px;font-weight:600;letter-spacing:.18em;color:var(--accent);}
.nav-links{display:none;align-items:center;gap:6px;}
@media(min-width:1024px){.nav-links{display:flex;}}
.nav-links a{
  position:relative;padding:8px 12px;border-radius:10px;
  font-size:14.5px;font-weight:500;color:var(--text-2);
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-links a.active{color:var(--text);font-weight:600;}
.nav-links a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;
  height:3px;border-radius:3px;background:var(--accent);
  box-shadow:0 0 12px rgba(255,122,69,.75);
}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-actions .btn-ghost{display:none;}
@media(min-width:768px){.nav-actions .btn-ghost{display:inline-flex;}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;
  font-size:15px;font-weight:800;letter-spacing:.02em;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
  white-space:nowrap;
}
.btn-sm{padding:9px 18px;font-size:13.5px;font-weight:700;}
.btn-primary{background:var(--accent);color:#1A1008;box-shadow:0 0 0 1px rgba(255,122,69,.5),0 14px 40px -14px rgba(255,122,69,.7);}
.btn-primary:hover{background:#ff8d5f;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,122,69,.65),0 20px 44px -14px rgba(255,122,69,.85);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--line-strong);}
.btn-ghost:hover{border-color:var(--primary);background:rgba(124,108,255,.08);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-link{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:700;color:var(--accent);}
.btn-link i{transition:transform .22s var(--ease);}
.btn-link:hover i{transform:translateX(4px);}

/* ============ 面包屑 ============ */
.crumbs{padding:26px 0 0;font-size:13px;color:var(--muted);}
.crumbs a:hover{color:var(--primary);}
.crumbs .sep{margin:0 8px;opacity:.6;}
.crumbs .current{color:var(--text);}

/* ============ Hero ============ */
.cat-hero{
  position:relative;overflow:hidden;
  padding:34px 0 clamp(48px,7vw,84px);
}
.hero-panel{
  position:relative;overflow:hidden;
  border-radius:24px;
  border:1px solid var(--line);
  background:linear-gradient(115deg,rgba(13,19,48,.97) 0%,rgba(13,19,48,.82) 46%,rgba(13,19,48,.42) 100%),
             url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  box-shadow:var(--shadow);
  padding:clamp(28px,5vw,56px);
}
.hero-grid{display:grid;gap:30px;}
@media(min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;align-items:center;gap:40px;}}
.tag-line{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  background:var(--panel);border:1px solid var(--line);color:var(--text-2);
}
.pill-accent{background:var(--accent-soft);border-color:rgba(255,122,69,.4);color:var(--accent);}
h1{
  font-size:clamp(32px,5.6vw,56px);
  font-weight:800;line-height:1.16;letter-spacing:-.01em;
  margin:0 0 18px;
}
h1 .hl{color:var(--accent);}
.hero-lead{max-width:640px;color:var(--text-2);font-size:17px;line-height:1.8;margin:0 0 26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.metrics{display:flex;flex-wrap:wrap;align-items:center;gap:18px;color:var(--muted);font-size:11px;letter-spacing:.06em;}
.metrics .metric{display:flex;flex-direction:column;gap:2px;}
.metrics .num{font-size:22px;font-weight:800;color:var(--text);letter-spacing:0;}
.metrics .divider{width:1px;height:30px;background:var(--line);}
.hero-side{
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--panel);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  padding:20px;
  box-shadow:var(--shadow);
}
.hero-side h2{font-size:15px;font-weight:700;margin:0 0 12px;color:var(--text);}
.side-row{display:flex;align-items:center;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line);}
.side-row:last-child{border-bottom:none;padding-bottom:0;}
.side-row .ico{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;display:grid;place-items:center;
  background:rgba(124,108,255,.16);color:var(--primary);font-size:13px;
}
.side-row .t{font-size:14px;font-weight:600;color:var(--text);}
.side-row .d{font-size:12px;color:var(--muted);letter-spacing:.02em;}

/* ============ 通用板块 ============ */
.section{padding:clamp(52px,7.5vw,100px) 0;position:relative;}
.section + .section{border-top:1px solid var(--line);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px;}
h2{font-size:clamp(24px,3.4vw,36px);font-weight:700;line-height:1.26;margin:0;}
.section-head p{margin:10px 0 0;color:var(--muted);font-size:14.5px;max-width:620px;}
h3{font-size:20px;font-weight:700;line-height:1.35;margin:0;}

/* ============ 筛选标签行 ============ */
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.filter-chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 18px;border-radius:999px;
  font-size:14px;font-weight:600;color:var(--text-2);
  border:1px solid var(--line);background:var(--panel);
  transition:all .2s var(--ease);
}
.filter-chip:hover{border-color:var(--line-strong);color:var(--text);transform:translateY(-2px);}
.filter-chip.on{background:var(--accent);border-color:var(--accent);color:#1A1008;box-shadow:0 12px 32px -16px rgba(255,122,69,.9);}
.filter-chip i{font-size:12px;}

/* ============ 卡片网格 ============ */
.card-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media(min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.card-grid{grid-template-columns:repeat(12,minmax(0,1fr));}}
.card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease);
}
.card:hover,.card:focus-within{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);background:var(--panel-2);}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-elev);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.card:hover .card-media img{transform:scale(1.04);}
.card-media::after{content:"";position:absolute;inset:auto 0 0 0;height:52%;background:linear-gradient(to top,rgba(7,10,22,.88),rgba(7,10,22,0));}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  align-self:flex-start;
  height:24px;padding:0 10px;border-radius:8px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  background:var(--accent-soft);color:var(--accent);
}
.card-title{font-size:17px;font-weight:700;line-height:1.5;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-desc{font-size:15px;line-height:1.7;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0;}
.card-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted);letter-spacing:.04em;margin-top:auto;padding-top:8px;}
.card-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--muted);}
.stretched::after{content:"";position:absolute;inset:0;}
@media(min-width:1024px){
  .card-lg{grid-column:span 6;}
  .card-sm{grid-column:span 3;}
  .card-lg .card-title{font-size:22px;}
  .card-lg .card-media{aspect-ratio:16/9;}
}
.more-line{margin-top:28px;display:flex;justify-content:flex-end;}

/* ============ 节奏 / 时间表 ============ */
.live-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  padding:14px 18px;border-radius:999px;
  border:1px solid var(--line);
  background:var(--panel);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  font-size:13.5px;color:var(--text-2);
  margin-bottom:26px;
}
.live-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(255,122,69,.18);}
.live-bar strong{color:var(--text);font-weight:700;}
.schedule{
  border-radius:var(--radius);border:1px solid var(--line);
  overflow:hidden;background:var(--panel);
}
.schedule-row{
  display:grid;grid-template-columns:88px 1fr auto;gap:14px;align-items:center;
  padding:16px 18px;border-bottom:1px solid var(--line);
  transition:background-color .2s var(--ease);
}
.schedule-row:last-child{border-bottom:none;}
.schedule-row:hover{background:rgba(124,108,255,.06);}
.schedule-row .time{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.04em;}
.schedule-row .what{font-size:15px;font-weight:600;color:var(--text);}
.schedule-row .what span{display:block;font-size:13px;font-weight:400;color:var(--muted);margin-top:2px;}
.schedule-row .st{
  font-size:12px;color:var(--text-2);padding:4px 10px;border-radius:999px;
  border:1px solid var(--line);white-space:nowrap;
}
.schedule-row .st.hot{border-color:rgba(255,122,69,.45);color:var(--accent);background:var(--accent-soft);}

/* ============ 分栏说明 ============ */
.split{display:grid;gap:28px;}
@media(min-width:1024px){.split{grid-template-columns:4fr 6fr;gap:48px;align-items:start;}}
.split h3{font-size:22px;}
.split .lead-note{color:var(--muted);font-size:14px;margin-top:12px;line-height:1.8;}
.def-item{padding:20px 0;border-bottom:1px solid var(--line);}
.def-item:first-child{padding-top:0;}
.def-item:last-child{border-bottom:none;}
.def-item h4{font-size:16px;font-weight:600;margin:0 0 8px;color:var(--text);}
.def-item p{margin:0;font-size:15px;line-height:1.8;color:var(--text-2);}
.cover-figure{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);}
.cover-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;}
details.faq{
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:var(--panel);
  padding:0 18px;
  transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
details.faq:hover{border-color:var(--line-strong);}
details.faq[open]{border-color:var(--line-strong);background:var(--panel-2);box-shadow:inset 3px 0 0 var(--accent);}
details.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;font-size:16px;font-weight:600;color:var(--text);
}
details.faq summary::-webkit-details-marker{display:none;}
details.faq summary .plus{
  flex:0 0 22px;width:22px;height:22px;display:grid;place-items:center;
  color:var(--accent);font-size:14px;transition:transform .24s var(--ease);
}
details.faq[open] summary .plus{transform:rotate(45deg);}
details.faq .ans{padding:0 0 18px;font-size:15px;line-height:1.8;color:var(--text-2);}

/* ============ 交叉链接 ============ */
.cross-grid{display:grid;gap:16px;}
@media(min-width:768px){.cross-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.cross-card{
  display:flex;flex-direction:column;gap:8px;
  padding:22px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:var(--panel);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease);
}
.cross-card:hover{transform:translateY(-4px);border-color:var(--primary);background:rgba(124,108,255,.08);box-shadow:var(--shadow-hover);}
.cross-card .k{font-size:12px;letter-spacing:.12em;color:var(--muted);font-weight:600;}
.cross-card .n{font-size:17px;font-weight:700;color:var(--text);}
.cross-card .s{font-size:13.5px;color:var(--text-2);line-height:1.7;}
.cross-card .go{font-size:13px;font-weight:700;color:var(--accent);margin-top:4px;}

/* ============ CTA 带 ============ */
.cta-band{
  border-radius:24px;
  border:1px solid var(--line);
  background:linear-gradient(110deg,rgba(124,108,255,.20),rgba(13,19,48,.72) 48%,rgba(255,122,69,.16));
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  padding:clamp(28px,4.5vw,48px);
  display:grid;gap:24px;
}
@media(min-width:1024px){.cta-band{grid-template-columns:6fr 4fr;align-items:center;}}
.cta-band h2{font-size:clamp(22px,3vw,32px);}
.cta-band p{margin:12px 0 0;color:var(--text-2);font-size:15px;line-height:1.8;max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-start;}
@media(min-width:1024px){.cta-actions{justify-content:flex-end;}}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:clamp(48px,7vw,88px);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(13,19,48,.55),rgba(7,10,22,.96));
  padding:clamp(40px,6vw,64px) 0 26px;
}
.footer-grid{display:grid;gap:32px;}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.footer-grid{grid-template-columns:4fr 2fr 2fr 4fr;gap:40px;}}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{margin:0;font-size:13.5px;color:var(--muted);line-height:1.85;max-width:320px;}
.footer-col h4{
  font-size:14px;font-weight:600;color:var(--text);
  margin:0 0 16px;position:relative;padding-top:12px;
}
.footer-col h4::before{content:"";position:absolute;top:0;left:0;width:22px;height:2px;border-radius:2px;background:var(--accent);}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.footer-col a{font-size:13.5px;color:var(--text-2);}
.footer-col a:hover{color:var(--accent);}
.sub-form{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px;}
.sub-form input[type="text"]{
  flex:1 1 180px;min-width:0;height:48px;padding:0 18px;
  border-radius:999px;border:1px solid var(--line);
  background:var(--panel);color:var(--text);font-size:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.sub-form input::placeholder{color:var(--muted);}
.sub-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,122,69,.22);}
.sub-form .btn{padding:0 22px;height:48px;border-radius:999px;font-size:14px;}
.form-note{font-size:12px;color:var(--muted);margin-top:10px;line-height:1.7;}
.footer-bottom{
  margin-top:36px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12px;color:var(--muted);
}

/* ============ 移动底部 Tab ============ */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:95;
  display:flex;
  height:64px;
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(9,13,32,.9);
  border-top:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.tabbar a{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11.5px;color:var(--muted);
  transition:color .2s var(--ease);
}
.tabbar a i{font-size:17px;}
.tabbar a.active,.tabbar a:hover{color:var(--accent);}
@media(min-width:1024px){.tabbar{display:none;}}
@media(max-width:1023px){body{padding-bottom:88px;}}

@media(max-width:767px){
  .schedule-row{grid-template-columns:64px 1fr;row-gap:8px;}
  .schedule-row .st{justify-self:start;grid-column:2;}
  .metrics{gap:14px;}
  .metrics .num{font-size:19px;}
  .hero-actions .btn{flex:1 1 auto;}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
}

/* roulang page: category3 */
:root{
  --bg-void:#070A16;
  --bg-deep:#0D1330;
  --bg-elev:#141B3D;
  --panel:rgba(255,255,255,.055);
  --panel-2:rgba(255,255,255,.09);
  --line:rgba(148,166,255,.16);
  --line-strong:rgba(148,166,255,.34);
  --primary:#7C6CFF;
  --primary-deep:#4B3FD6;
  --accent:#FF7A45;
  --accent-soft:rgba(255,122,69,.16);
  --text:#EDF1FF;
  --text-2:#B7C1E0;
  --muted:#8B96B8;
  --radius:20px;
  --radius-sm:14px;
  --shadow:0 18px 44px -28px rgba(6,10,28,.9);
  --shadow-hover:0 26px 60px -26px rgba(124,108,255,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
body.site-body{
  margin:0;
  padding:0 0 88px;
  background:
    radial-gradient(1100px 620px at 84% -12%, rgba(124,108,255,.20), transparent 62%),
    radial-gradient(900px 520px at 2% 6%, rgba(255,122,69,.10), transparent 60%),
    var(--bg-void);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.starfield{
  position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.55;
  background-image:
    radial-gradient(1.4px 1.4px at 24px 36px, rgba(255,255,255,.70), transparent 60%),
    radial-gradient(1px 1px at 128px 92px, rgba(180,196,255,.55), transparent 60%),
    radial-gradient(1.2px 1.2px at 222px 182px, rgba(255,255,255,.36), transparent 60%),
    radial-gradient(1px 1px at 302px 58px, rgba(255,255,255,.42), transparent 60%);
  background-size:360px 260px;
}
.container{
  width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;position:relative;z-index:1;
}
@media(min-width:768px){.container{padding:0 28px}}
@media(min-width:1024px){.container{padding:0 40px}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(9,13,32,.66);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background .22s var(--ease);
}
.site-header.is-scrolled{background:rgba(7,10,22,.92)}
.nav-wrap{
  max-width:var(--container);margin:0 auto;padding:0 20px;height:68px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
@media(min-width:768px){.nav-wrap{padding:0 28px}}
@media(min-width:1024px){.nav-wrap{padding:0 40px}}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:var(--accent-soft);border:1px solid rgba(255,122,69,.42);color:var(--accent);
  font-size:15px;box-shadow:0 0 0 1px rgba(255,122,69,.14);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-main{font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--text)}
.brand-sub{font-size:11px;font-weight:600;letter-spacing:.16em;color:var(--muted);margin-top:3px}
.nav-links{display:none;align-items:center;gap:4px}
@media(min-width:1024px){.nav-links{display:flex}}
.nav-links a{
  position:relative;padding:9px 13px;border-radius:999px;font-size:14.5px;color:var(--text-2);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links a:hover{color:var(--text);background:var(--panel)}
.nav-links a.active{color:var(--accent);background:var(--accent-soft)}
.nav-links a.active::after{
  content:"";position:absolute;left:50%;bottom:1px;transform:translateX(-50%);
  width:22px;height:3px;border-radius:3px;background:var(--accent);
}
.nav-actions{display:none;align-items:center;gap:10px;flex-shrink:0}
@media(min-width:768px){.nav-actions{display:flex}}
@media(max-width:767px){.nav-actions{display:flex}.nav-actions .btn-ghost{display:none}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:700;text-decoration:none;border:1px solid transparent;
  cursor:pointer;transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease);
}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-lg{padding:14px 28px;font-size:16px}
.btn-primary{
  background:var(--accent);color:#1A1008;
  box-shadow:0 0 0 1px rgba(255,122,69,.5),0 14px 40px -14px rgba(255,122,69,.7);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);background:rgba(124,108,255,.12);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}

/* ---------- hero ---------- */
.page-main{padding-top:68px}
.hero{padding:clamp(32px,5vw,64px) 0 clamp(30px,4.5vw,56px);position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
@media(min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:48px}}
.crumb{font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin-bottom:18px}
.crumb a{color:var(--muted);transition:color .2s var(--ease)}
.crumb a:hover{color:var(--primary)}
.crumb span.sep{opacity:.5}
.crumb .current{color:var(--text)}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:var(--accent-soft);color:var(--accent);font-size:12.5px;font-weight:700;letter-spacing:.04em;
  border:1px solid rgba(255,122,69,.28);margin-bottom:18px;
}
.hero-title{
  font-size:clamp(30px,5.2vw,56px);font-weight:800;line-height:1.15;letter-spacing:-.01em;
  margin:0;max-width:19ch;
}
.hero-lead{margin:18px 0 0;font-size:17px;line-height:1.8;color:var(--text-2);max-width:600px}
.hero-metrics{display:flex;flex-wrap:wrap;margin-top:28px;gap:0}
.metric{padding:0 22px;border-left:1px solid var(--line)}
.metric:first-child{padding-left:0;border-left:0}
.metric-num{font-size:22px;font-weight:800;line-height:1.2;color:var(--text);font-variant-numeric:tabular-nums}
.metric-label{font-size:11px;letter-spacing:.06em;color:var(--muted);margin-top:4px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-media{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(90deg,rgba(7,10,22,.88) 0%,rgba(7,10,22,.30) 52%,rgba(7,10,22,.05) 100%);
}
.hero-float{
  position:absolute;left:14px;bottom:14px;z-index:2;max-width:260px;
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 16px;border-radius:var(--radius-sm);
  background:rgba(20,27,61,.62);border:1px solid var(--line-strong);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:0 18px 40px -22px rgba(6,10,28,.95);
}
@media(min-width:1024px){.hero-float{left:-26px;bottom:26px}}
.hero-float i{color:var(--accent);font-size:16px;margin-top:3px}
.hero-float b{display:block;font-size:14px;font-weight:700;color:var(--text)}
.hero-float small{display:block;font-size:12px;color:var(--muted);line-height:1.6;margin-top:2px}

/* ---------- sections ---------- */
.section{padding:clamp(46px,6.5vw,88px) 0;position:relative;z-index:1}
.section--divide{border-top:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:clamp(24px,3.5vw,40px)}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--accent);margin-bottom:12px}
.section-head h2{font-size:clamp(23px,3.2vw,36px);font-weight:700;line-height:1.25;margin:0;letter-spacing:-.005em}
.section-head p{margin:14px 0 0;color:var(--text-2);font-size:15.5px;line-height:1.85;max-width:640px}

/* ---------- definition two column ---------- */
.def-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:1024px){.def-grid{grid-template-columns:4fr 8fr;gap:56px}}
.def-side{align-self:start}
@media(min-width:1024px){.def-side{position:sticky;top:96px}}
.def-side-title{font-size:14px;font-weight:600;color:var(--muted);letter-spacing:.06em;margin-bottom:14px}
.def-anchors{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
@media(min-width:1024px){.def-anchors{flex-direction:column;flex-wrap:nowrap;gap:2px}}
.def-anchors a{
  display:block;padding:10px 14px;border-radius:10px;font-size:14.5px;color:var(--text-2);
  border-left:2px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
  background:rgba(255,255,255,.03);
}
@media(min-width:1024px){.def-anchors a{background:transparent;border-radius:0 10px 10px 0}}
.def-anchors a:hover{color:var(--accent);border-left-color:var(--accent);background:var(--accent-soft)}
.def-list{display:flex;flex-direction:column}
.def-item{padding:26px 0;border-top:1px solid var(--line)}
.def-item:first-child{border-top:1px solid var(--line);padding-top:26px}
.def-item h3{font-size:19px;font-weight:700;margin:0;line-height:1.4;display:flex;align-items:baseline;gap:10px}
.def-item h3 .num{
  font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--accent);
  font-variant-numeric:tabular-nums;flex-shrink:0;
}
.def-item p{margin:12px 0 0;color:var(--text-2);font-size:15.5px;line-height:1.85;max-width:680px}
.def-item .def-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;letter-spacing:.04em;color:var(--text-2);
  background:rgba(255,255,255,.06);border:1px solid var(--line);
}
.tag--accent{color:var(--accent);background:var(--accent-soft);border-color:rgba(255,122,69,.28)}

/* ---------- tip band ---------- */
.tip-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  padding:clamp(20px,3vw,28px);border-radius:var(--radius);
  background:var(--panel);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:var(--shadow);
}
.tip-left{display:flex;gap:16px;align-items:flex-start;min-width:260px;flex:1}
.tip-icon{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;flex-shrink:0;
  background:var(--accent-soft);color:var(--accent);border:1px solid rgba(255,122,69,.3);font-size:17px;
}
.tip-left b{display:block;font-size:16.5px;font-weight:700}
.tip-left p{margin:6px 0 0;font-size:14.5px;color:var(--text-2);line-height:1.75;max-width:640px}

/* ---------- device cards ---------- */
.device-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:640px){.device-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.device-grid{grid-template-columns:repeat(4,1fr);gap:24px}}
.device-card{
  border-radius:var(--radius);overflow:hidden;background:var(--panel);border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.device-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.device-thumb{position:relative}
.device-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover}
.device-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,22,.10) 0%,rgba(7,10,22,.72) 100%);
}
.device-body{padding:18px 20px 22px}
.device-body h3{font-size:16.5px;font-weight:700;margin:0;display:flex;align-items:center;gap:8px}
.device-body h3 i{color:var(--primary);font-size:14px}
.device-body p{margin:10px 0 0;font-size:14px;line-height:1.75;color:var(--text-2)}
.device-meta{
  margin-top:14px;font-size:12px;letter-spacing:.05em;color:var(--muted);
  display:flex;align-items:center;gap:8px;
}
.dot{width:5px;height:5px;border-radius:50%;background:var(--accent);display:inline-block}

/* ---------- flow ---------- */
.flow{display:grid;grid-template-columns:1fr;gap:20px;counter-reset:flow}
@media(min-width:768px){.flow{grid-template-columns:repeat(3,1fr);gap:24px}}
.flow-step{
  position:relative;padding:26px 24px;border-radius:var(--radius);
  background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.flow-step:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.flow-num{
  font-size:30px;font-weight:800;line-height:1;color:var(--accent);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.flow-step h3{font-size:17px;font-weight:700;margin:14px 0 0}
.flow-step p{margin:10px 0 0;font-size:14.5px;line-height:1.8;color:var(--text-2)}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr;gap:28px}
@media(min-width:1024px){.faq-wrap{grid-template-columns:8fr 4fr;gap:40px}}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--panel);
  margin-bottom:12px;overflow:hidden;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:20px;line-height:1;color:var(--accent);flex-shrink:0;
  transition:transform .22s var(--ease);
}
.faq-item[open]{background:var(--panel-2);border-color:var(--line-strong);box-shadow:inset 3px 0 0 var(--accent)}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2)}
.faq-side{
  padding:26px 24px;border-radius:var(--radius);background:var(--panel-2);
  border:1px solid var(--line-strong);align-self:start;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
@media(min-width:1024px){.faq-side{position:sticky;top:96px}}
.faq-side h3{font-size:18px;font-weight:700;margin:0}
.faq-side p{margin:12px 0 0;font-size:14.5px;line-height:1.8;color:var(--text-2)}
.faq-side .btn{margin-top:20px}

/* ---------- cross links ---------- */
.cross-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:768px){.cross-grid{grid-template-columns:repeat(3,1fr);gap:20px}}
.cross-card{
  display:block;padding:24px;border-radius:var(--radius-sm);
  background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.cross-card:hover{transform:translateY(-4px);border-color:var(--primary);background:rgba(124,108,255,.10);box-shadow:var(--shadow-hover)}
.cross-card h3{font-size:17px;font-weight:700;margin:0;display:flex;align-items:center;justify-content:space-between;gap:10px}
.cross-card h3 i{color:var(--primary);font-size:14px;transition:transform .22s var(--ease)}
.cross-card:hover h3 i{transform:translateX(4px)}
.cross-card p{margin:10px 0 0;font-size:14px;line-height:1.75;color:var(--text-2)}

/* ---------- cta band ---------- */
.cta-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  padding:clamp(28px,4.5vw,52px);border-radius:24px;
  background:linear-gradient(135deg,rgba(124,108,255,.20),rgba(255,122,69,.14));
  border:1px solid var(--line-strong);box-shadow:var(--shadow);
}
.cta-band h2{margin:0;font-size:clamp(22px,3vw,32px);font-weight:800;line-height:1.3;letter-spacing:-.005em}
.cta-band p{margin:12px 0 0;font-size:15px;color:var(--text-2);line-height:1.8;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- footer ---------- */
.site-footer{
  border-top:1px solid var(--line);background:rgba(7,10,22,.72);
  padding:clamp(40px,6vw,72px) 0 26px;position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media(min-width:768px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr .8fr .8fr 1.4fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-about{font-size:14px;line-height:1.8;color:var(--text-2);max-width:340px}
.footer-title{
  font-size:14px;font-weight:600;color:var(--text);margin:0 0 16px;padding-top:10px;position:relative;
}
.footer-title::before{
  content:"";position:absolute;top:0;left:0;width:22px;height:3px;border-radius:3px;background:var(--accent);
}
.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--muted);transition:color .2s var(--ease)}
.footer-links a:hover{color:var(--primary)}
.subscribe{display:flex;gap:8px;flex-wrap:wrap;margin-top:4px}
.subscribe input{
  flex:1;min-width:170px;height:48px;padding:0 18px;border-radius:999px;
  background:var(--panel);border:1px solid var(--line);color:var(--text);font-size:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.subscribe input::placeholder{color:var(--muted)}
.subscribe input:focus{
  outline:none;border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(255,122,69,.22);
}
.subscribe .btn{height:48px;padding:0 22px;font-size:14.5px}
.subscribe-note{font-size:12px;color:var(--muted);margin-top:10px;line-height:1.7}
.footer-bottom{
  margin-top:clamp(28px,4vw,44px);padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:12px;color:var(--muted);
}
.footer-bottom span{line-height:1.7}

/* ---------- mobile tab ---------- */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:95;display:flex;
  height:64px;padding-bottom:env(safe-area-inset-bottom);
  background:rgba(9,13,32,.90);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
}
@media(min-width:1024px){.mobile-tab{display:none}}
.mobile-tab a{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11px;color:var(--muted);transition:color .2s var(--ease);
}
.mobile-tab a i{font-size:17px}
.mobile-tab a.active{color:var(--accent)}
.mobile-tab a:hover{color:var(--text-2)}
@media(min-width:1024px){body.site-body{padding-bottom:0}}

/* roulang page: category4 */
:root{
    --bg-void:#070A16;
    --bg-deep:#0D1330;
    --bg-elev:#141B3D;
    --panel:rgba(255,255,255,.055);
    --panel-2:rgba(255,255,255,.09);
    --line:rgba(148,166,255,.16);
    --line-strong:rgba(148,166,255,.34);
    --primary:#7C6CFF;
    --primary-deep:#4B3FD6;
    --accent:#FF7A45;
    --accent-soft:rgba(255,122,69,.16);
    --text:#EDF1FF;
    --text-2:#B7C1E0;
    --muted:#8B96B8;
    --paper:#F5F7FF;
    --ink:#1A2040;
    --radius:20px;
    --radius-sm:14px;
    --shadow:0 18px 44px -28px rgba(6,10,28,.9);
    --shadow-hover:0 26px 60px -26px rgba(124,108,255,.45);
    --ease:cubic-bezier(.2,.7,.3,1);
    --nav-h:68px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body.site-body{
    margin:0;
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.75;
    color:var(--text);
    background:
      radial-gradient(900px 520px at 10% -10%, rgba(124,108,255,.18), transparent 62%),
      radial-gradient(780px 480px at 94% 2%, rgba(255,122,69,.10), transparent 60%),
      var(--bg-void);
    background-attachment:fixed,fixed,fixed;
    padding-top:var(--nav-h);
    padding-bottom:0;
    -webkit-font-smoothing:antialiased;
  }
  body.site-body::before{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    z-index:0;
    background-image:
      radial-gradient(1px 1px at 20% 30%, rgba(255,255,255,.34), transparent 100%),
      radial-gradient(1px 1px at 70% 62%, rgba(180,196,255,.28), transparent 100%);
    background-size:220px 220px, 320px 320px;
    opacity:.55;
  }
  a{color:inherit;text-decoration:none;}
  img{display:block;max-width:100%;}
  button,input{font:inherit;color: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:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1;}
  @media(min-width:768px){.container{padding:0 28px;}}
  @media(min-width:1024px){.container{padding:0 40px;}}

  /* ============ 导航 ============ */
  .site-header{
    position:fixed;top:0;left:0;right:0;z-index:100;
    height:var(--nav-h);
    background:rgba(9,13,32,.62);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
    transition:background .22s var(--ease),box-shadow .22s var(--ease);
  }
  .site-header.is-scrolled{
    background:rgba(7,10,22,.9);
    box-shadow:0 12px 34px -22px rgba(0,0,0,.9);
  }
  .nav-wrap{
    height:100%;max-width:1200px;margin:0 auto;
    padding:0 20px;display:flex;align-items:center;gap:18px;
  }
  @media(min-width:768px){.nav-wrap{padding:0 28px;}}
  @media(min-width:1024px){.nav-wrap{padding:0 40px;gap:26px;}}

  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .brand-mark{
    width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
    background:linear-gradient(140deg,rgba(124,108,255,.9),rgba(75,63,214,.85));
    color:#fff;font-size:15px;
    box-shadow:0 0 0 1px rgba(148,166,255,.35),0 12px 26px -14px rgba(124,108,255,.9);
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.15;}
  .brand-main{font-size:18px;font-weight:800;letter-spacing:.01em;}
  .brand-sub{font-size:11px;font-weight:600;letter-spacing:.18em;color:var(--muted);}

  .nav-links{display:none;align-items:center;gap:6px;margin-left:auto;}
  .nav-links a{
    position:relative;padding:9px 12px;border-radius:10px;
    font-size:14.5px;font-weight:600;color:var(--text-2);
    transition:color .2s var(--ease),background .2s var(--ease);
  }
  .nav-links a:hover{color:var(--text);background:var(--panel);}
  .nav-links a.active{color:var(--text);}
  .nav-links a.active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;
    border-radius:3px;background:var(--accent);
  }
  .nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}

  @media(min-width:1024px){
    .nav-links{display:flex;}
    .nav-actions{margin-left:0;}
  }

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:999px;border:1px solid transparent;
    font-weight:800;letter-spacing:.01em;cursor:pointer;
    transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease);
    white-space:nowrap;
  }
  .btn-sm{padding:9px 18px;font-size:13.5px;}
  .btn-md{padding:13px 26px;font-size:15px;}
  .btn-lg{padding:15px 32px;font-size:16px;}
  .btn-primary{
    background:var(--accent);color:#1A1008;
    box-shadow:0 0 0 1px rgba(255,122,69,.5),0 14px 40px -18px rgba(255,122,69,.8);
  }
  .btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{
    background:transparent;color:var(--text);
    border-color:var(--line-strong);
  }
  .btn-ghost:hover{border-color:var(--primary);background:rgba(124,108,255,.10);transform:translateY(-2px);}
  .btn-ghost:active{transform:translateY(0);}

  /* ============ 面包屑 ============ */
  .crumbs{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;color:var(--muted);
    padding:26px 0 0;
  }
  .crumbs a{color:var(--muted);transition:color .2s var(--ease);}
  .crumbs a:hover{color:var(--primary);}
  .crumbs .sep{color:rgba(139,150,184,.55);}
  .crumbs .current{color:var(--text);}

  /* ============ Hero ============ */
  .hero{padding:34px 0 clamp(40px,6vw,72px);}
  .hero-grid{display:grid;gap:34px;align-items:center;}
  @media(min-width:1024px){
    .hero-grid{grid-template-columns:1.12fr .88fr;gap:48px;}
  }
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 14px;border-radius:999px;
    background:var(--accent-soft);color:var(--accent);
    font-size:12px;font-weight:700;letter-spacing:.06em;
    border:1px solid rgba(255,122,69,.28);
    margin-bottom:18px;
  }
  .hero h1{
    font-size:clamp(30px,5.2vw,52px);
    font-weight:800;line-height:1.16;letter-spacing:-.01em;
    margin-bottom:16px;
  }
  .hero h1 .hl{
    background:linear-gradient(100deg,#FFB08A,#FF7A45 60%,#FF9E6E);
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .hero-lead{
    max-width:640px;font-size:16.5px;line-height:1.8;color:var(--text-2);
    margin-bottom:26px;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
  .hero-stats{display:flex;flex-wrap:wrap;align-items:center;gap:18px;}
  .hero-stats .stat{display:flex;flex-direction:column;gap:2px;}
  .hero-stats .num{font-size:22px;font-weight:800;line-height:1;}
  .hero-stats .lab{font-size:11px;letter-spacing:.08em;color:var(--muted);}
  .hero-stats .bar{width:1px;height:28px;background:var(--line-strong);}

  .hero-visual{position:relative;}
  .hero-visual .frame{
    position:relative;border-radius:var(--radius);overflow:hidden;
    border:1px solid var(--line);box-shadow:var(--shadow);
    aspect-ratio:16/11;background:var(--bg-elev);
  }
  .hero-visual .frame img{width:100%;height:100%;object-fit:cover;}
  .hero-visual .frame::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(90deg,rgba(7,10,22,.72),rgba(7,10,22,.08) 60%,transparent);
  }
  .float-card{
    position:absolute;left:14px;bottom:14px;right:14px;
    background:rgba(13,19,48,.72);
    border:1px solid var(--line-strong);
    border-radius:var(--radius-sm);
    -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
    padding:14px 16px;display:flex;gap:12px;align-items:center;
    box-shadow:0 20px 40px -26px rgba(0,0,0,.95);
  }
  @media(min-width:1024px){
    .float-card{left:-18px;right:auto;bottom:22px;width:min(320px,86%);}
  }
  .float-card .ic{
    width:38px;height:38px;flex:0 0 auto;border-radius:11px;display:grid;place-items:center;
    background:rgba(255,122,69,.16);color:var(--accent);font-size:15px;
    border:1px solid rgba(255,122,69,.3);
  }
  .float-card .t1{font-size:14px;font-weight:700;}
  .float-card .t2{font-size:12.5px;color:var(--text-2);line-height:1.55;}

  /* ============ 通用板块 ============ */
  .section{padding:clamp(46px,7vw,92px) 0;border-top:1px solid var(--line);}
  .section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px;}
  .section-head h2{
    font-size:clamp(23px,3.2vw,34px);font-weight:700;line-height:1.28;letter-spacing:-.005em;
  }
  .section-head .sub{font-size:14.5px;color:var(--muted);margin-top:8px;max-width:560px;}
  .link-more{
    display:inline-flex;align-items:center;gap:7px;
    font-size:14px;font-weight:700;color:var(--primary);
    transition:gap .2s var(--ease),color .2s var(--ease);
  }
  .link-more:hover{gap:12px;color:#a99cff;}

  /* ============ 胶囊筛选 ============ */
  .pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px;}
  .pill{
    display:inline-flex;align-items:center;gap:6px;
    padding:8px 16px;border-radius:999px;
    font-size:13.5px;font-weight:600;
    background:var(--panel);border:1px solid var(--line);color:var(--text-2);
    transition:all .2s var(--ease);
  }
  .pill:hover{border-color:var(--line-strong);color:var(--text);transform:translateY(-2px);}
  .pill.is-on{
    background:var(--accent-soft);border-color:rgba(255,122,69,.45);color:var(--accent);
  }

  /* ============ FAQ 布局 ============ */
  .faq-layout{display:grid;gap:26px;align-items:start;}
  @media(min-width:1024px){
    .faq-layout{grid-template-columns:1.58fr .92fr;gap:34px;}
  }
  .faq-item{
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:var(--radius-sm);
    margin-bottom:12px;
    transition:border-color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
    overflow:hidden;
    scroll-margin-top:90px;
  }
  .faq-item:hover{border-color:var(--line-strong);background:var(--panel-2);}
  .faq-item[open]{
    border-color:var(--line-strong);
    background:var(--panel-2);
    box-shadow:var(--shadow);
    border-left:3px solid var(--accent);
  }
  .faq-item summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 20px;
    font-size:16px;font-weight:600;color:var(--text);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary .plus{
    flex:0 0 auto;width:22px;height:22px;border-radius:50%;
    display:grid;place-items:center;
    color:var(--accent);font-size:13px;
    background:rgba(255,122,69,.12);
    transition:transform .22s var(--ease);
  }
  .faq-item[open] summary .plus{transform:rotate(45deg);}
  .faq-body{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--text-2);}
  .faq-body p+p{margin-top:10px;}
  .faq-body .tagline{
    display:inline-block;margin-top:10px;padding:5px 12px;border-radius:8px;
    background:var(--accent-soft);color:var(--accent);font-size:12.5px;font-weight:700;
  }

  /* ============ 支持卡 ============ */
  .support-card{
    background:linear-gradient(160deg,rgba(124,108,255,.16),rgba(255,255,255,.045));
    border:1px solid var(--line-strong);
    border-radius:var(--radius);
    padding:24px;
    box-shadow:var(--shadow);
    -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  }
  @media(min-width:1024px){.support-card{position:sticky;top:92px;}}
  .support-card .ic-lg{
    width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
    background:rgba(255,122,69,.16);color:var(--accent);font-size:18px;
    border:1px solid rgba(255,122,69,.3);margin-bottom:16px;
  }
  .support-card h3{font-size:19px;font-weight:700;margin-bottom:8px;}
  .support-card p{font-size:14px;line-height:1.75;color:var(--text-2);margin-bottom:18px;}
  .support-list{display:flex;flex-direction:column;gap:10px;margin-bottom:20px;padding-top:16px;border-top:1px solid var(--line);}
  .support-list li{display:flex;gap:9px;font-size:13.5px;color:var(--text-2);line-height:1.65;}
  .support-list li i{color:var(--primary);font-size:12px;margin-top:6px;}
  .support-card .btn{width:100%;}

  /* ============ 公告列表 ============ */
  .notice-panel{
    background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
    padding:24px;margin-top:30px;
  }
  @media(min-width:768px){.notice-panel{padding:30px 32px;}}
  .notice-panel h3{font-size:18px;font-weight:700;margin-bottom:6px;}
  .notice-panel .hint{font-size:13px;color:var(--muted);margin-bottom:20px;}
  .notice-item{
    display:flex;flex-wrap:wrap;align-items:center;gap:14px;
    padding:16px 0;border-top:1px solid var(--line);
    transition:padding-left .2s var(--ease);
  }
  .notice-item:first-of-type{border-top:1px solid var(--line);}
  .notice-item:hover{padding-left:6px;}
  .notice-date{
    flex:0 0 auto;font-size:12.5px;font-weight:700;letter-spacing:.04em;color:var(--accent);
    background:var(--accent-soft);border-radius:8px;padding:4px 10px;
  }
  .notice-item h4{font-size:15px;font-weight:600;color:var(--text);}
  .notice-item .desc{font-size:13.5px;color:var(--muted);margin-top:3px;}

  /* ============ 交叉链接 ============ */
  .cross-grid{display:grid;gap:18px;}
  @media(min-width:768px){.cross-grid{grid-template-columns:repeat(3,1fr);}}
  .cross-card{
    display:flex;flex-direction:column;gap:10px;
    padding:22px;border-radius:var(--radius-sm);
    background:var(--panel);border:1px solid var(--line);
    transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
  }
  .cross-card:hover{
    transform:translateY(-4px);border-color:var(--line-strong);
    background:var(--panel-2);box-shadow:var(--shadow-hover);
  }
  .cross-card .badge{
    align-self:flex-start;padding:3px 10px;border-radius:8px;
    background:var(--accent-soft);color:var(--accent);
    font-size:12px;font-weight:700;letter-spacing:.02em;
  }
  .cross-card h4{font-size:16.5px;font-weight:700;}
  .cross-card p{font-size:13.5px;line-height:1.72;color:var(--text-2);}
  .cross-card .go{font-size:13px;font-weight:700;color:var(--primary);display:inline-flex;align-items:center;gap:6px;margin-top:auto;}
  .cross-card:hover .go{gap:10px;}

  /* ============ CTA 带 ============ */
  .cta-band{
    border:1px solid var(--line-strong);
    border-radius:var(--radius);
    background:
      radial-gradient(620px 260px at 88% 0%, rgba(255,122,69,.16), transparent 68%),
      linear-gradient(140deg,rgba(124,108,255,.18),rgba(255,255,255,.05));
    padding:clamp(28px,4vw,44px);
    display:grid;gap:24px;align-items:center;
    -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
    box-shadow:var(--shadow);
  }
  @media(min-width:900px){.cta-band{grid-template-columns:1.3fr .7fr;}}
  .cta-band h2{font-size:clamp(22px,3vw,30px);font-weight:700;line-height:1.3;margin-bottom:10px;}
  .cta-band p{font-size:14.5px;color:var(--text-2);max-width:560px;}
  .cta-band .acts{display:flex;flex-wrap:wrap;gap:12px;}
  @media(min-width:900px){.cta-band .acts{justify-content:flex-end;}}

  /* ============ 页脚 ============ */
  .site-footer{
    position:relative;z-index:1;
    border-top:1px solid var(--line);
    background:linear-gradient(180deg,rgba(13,19,48,.7),rgba(7,10,22,.95));
    padding:clamp(40px,6vw,72px) 0 26px;
    margin-top:clamp(40px,6vw,72px);
  }
  .foot-grid{display:grid;gap:34px;}
  @media(min-width:768px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr;}}
  @media(min-width:1024px){.foot-grid{grid-template-columns:1.5fr .8fr .8fr 1.3fr;gap:40px;}}
  .foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
  .foot-about{font-size:13.5px;line-height:1.8;color:var(--muted);max-width:320px;}
  .foot-title{
    font-size:14px;font-weight:600;color:var(--text);
    padding-top:8px;position:relative;margin-bottom:16px;
  }
  .foot-title::before{
    content:"";position:absolute;top:0;left:0;width:24px;height:2px;border-radius:2px;background:var(--accent);
  }
  .foot-links{display:flex;flex-direction:column;gap:11px;}
  .foot-links a{font-size:13.5px;color:var(--muted);transition:color .2s var(--ease),padding-left .2s var(--ease);}
  .foot-links a:hover{color:var(--text);padding-left:5px;}
  .sub-form{display:flex;gap:8px;flex-wrap:wrap;}
  .sub-form input{
    flex:1 1 150px;min-width:0;height:46px;
    padding:0 18px;border-radius:999px;
    background:var(--panel);border:1px solid var(--line);
    color:var(--text);font-size:14px;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .sub-form input::placeholder{color:var(--muted);}
  .sub-form input:focus{
    outline:none;border-color:var(--accent);
    box-shadow:0 0 0 3px rgba(255,122,69,.22);
  }
  .sub-form button{flex:0 0 auto;height:46px;padding:0 24px;}
  .form-tip{font-size:12px;color:var(--muted);margin-top:10px;line-height:1.7;}
  .foot-bottom{
    margin-top:34px;padding-top:20px;border-top:1px solid var(--line);
    display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;justify-content:space-between;
    font-size:12px;color:var(--muted);
  }
  .foot-bottom .links{display:flex;flex-wrap:wrap;gap:16px;}
  .foot-bottom a{color:var(--muted);}
  .foot-bottom a:hover{color:var(--text);}

  /* ============ 移动底部 Tab ============ */
  .mobile-tab{
    position:fixed;left:0;right:0;bottom:0;z-index:120;
    display:grid;grid-template-columns:repeat(5,1fr);
    height:64px;padding-bottom:env(safe-area-inset-bottom);
    background:rgba(9,13,32,.86);
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    border-top:1px solid var(--line);
  }
  .mobile-tab a{
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    font-size:11px;font-weight:600;color:var(--muted);
    transition:color .2s var(--ease);
  }
  .mobile-tab a i{font-size:15px;}
  .mobile-tab a.active,.mobile-tab a:hover{color:var(--accent);}
  @media(min-width:1024px){.mobile-tab{display:none;}}

  @media(max-width:1023px){
    body.site-body{padding-bottom:88px;}
    .nav-links{display:none;}
    .nav-actions .btn-ghost{display:none;}
  }
  @media(max-width:520px){
    .brand-main{font-size:16px;}
    .brand-sub{font-size:10px;letter-spacing:.14em;}
    .hero-stats{gap:14px;}
    .hero-stats .num{font-size:19px;}
    .faq-item summary{font-size:15px;padding:16px;}
    .faq-body{padding:0 16px 18px;font-size:14.5px;}
    .foot-grid{gap:28px;}
  }