/* roulang page: index */
:root{
  --brand:#12E3A4;
  --brand-2:#0FB8D6;
  --accent:#FF7A45;
  --violet:#7C5CFF;
  --bg:#05080F;
  --panel:#0C1220;
  --text:#E8EDF5;
  --muted:#9AA7BC;
  --dim:#5A6579;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.18);
  --line-brand:rgba(18,227,164,.35);
  --glass:linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  --r-card:16px;
  --r-panel:20px;
  --r-btn:10px;
  --r-tag:6px;
  --shadow-card:0 18px 40px -20px rgba(0,0,0,.85);
  --shadow-inset:inset 0 1px 0 rgba(255,255,255,.06);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:220ms var(--ease);
  --max-w:1280px;
  --sec-y:104px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(circle at 88% 4%, rgba(18,227,164,.13), transparent 42%),
    radial-gradient(circle at 4% 78%, rgba(124,92,255,.07), transparent 46%),
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:auto,auto,24px 24px,24px 24px;
  background-repeat:no-repeat,no-repeat,repeat,repeat;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color var(--t),border-color var(--t),background var(--t)}
a:hover{color:#5cf5c9}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{cursor:pointer;background:none;border:0;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:0}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums}
.row{max-width:var(--max-w);margin-left:auto;margin-right:auto}
.row.gutters{margin-left:-12px;margin-right:-12px}
.row.gutters>.column,.row.gutters>.columns{padding-left:12px;padding-right:12px}
.section{padding:var(--sec-y) 0}
.section-tight{padding:72px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(24px,3vw,36px);font-weight:700}
.sec-head .sec-sub{margin-top:10px;color:var(--muted);font-size:15px;max-width:620px}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand)}
.link-arrow i{transition:transform var(--t)}
.link-arrow:hover i{transform:translateX(4px)}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-tag);font-size:12px;line-height:1;background:rgba(18,227,164,.12);border:1px solid rgba(18,227,164,.28);color:var(--brand);white-space:nowrap}
.tag-hot{background:rgba(255,122,69,.14);border-color:rgba(255,122,69,.32);color:var(--accent)}
.tag-violet{background:rgba(124,92,255,.14);border-color:rgba(124,92,255,.32);color:#b7a6ff}
.glass{background:var(--glass);backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);border:1px solid var(--line);box-shadow:var(--shadow-card),var(--shadow-inset)}

/* ---------- 公告条 ---------- */
.notice-bar{
  height:32px;display:flex;align-items:center;justify-content:center;gap:10px;
  font-size:13px;color:var(--muted);padding:0 56px 0 16px;position:relative;
  background:rgba(12,18,32,.72);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.notice-bar strong{color:var(--text);font-weight:600}
.notice-bar a{color:var(--brand);font-weight:600}
.notice-close{position:absolute;right:6px;top:0;width:44px;height:32px;display:flex;align-items:center;justify-content:center;color:var(--dim);font-size:13px}
.notice-close:hover{color:var(--text)}
.notice-bar.is-hidden{display:none}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,8,15,.72);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.07);
  transition:background var(--t),box-shadow var(--t);
}
.site-header.is-scrolled{background:rgba(5,8,15,.94);box-shadow:0 14px 34px -20px rgba(0,0,0,.95)}
.nav-wrap{max-width:var(--max-w);margin:0 auto;padding:0 32px;height:64px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.nav-left,.nav-right{display:flex;align-items:center;gap:26px}
.nav-left{gap:34px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);flex-shrink:0}
.brand:hover{color:var(--text)}
.brand-mark{
  width:28px;height:28px;flex-shrink:0;position:relative;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  clip-path:polygon(50% 0%,93% 25%,93% 75%,50% 100%,7% 75%,7% 25%);
  box-shadow:0 0 18px rgba(18,227,164,.5);
}
.brand-mark::after{content:"";position:absolute;inset:8px;background:var(--bg);clip-path:polygon(50% 0%,93% 25%,93% 75%,50% 100%,7% 75%,7% 25%)}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.2px}
.nav-links{display:flex;align-items:center;gap:24px}
.nav-link{position:relative;font-size:16px;color:var(--muted);padding:10px 2px;line-height:1;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;background:var(--brand);border-radius:2px;transition:left var(--t),right var(--t)}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{left:0;right:0}
.nav-link.is-active{color:var(--brand)}
.nav-link.is-active::after{left:0;right:0}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search input{
  width:220px;height:40px;padding:0 40px 0 14px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text);
  font-size:14px;transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.nav-search input::placeholder{color:var(--dim)}
.nav-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(18,227,164,.18);background:rgba(255,255,255,.06)}
.nav-search button{position:absolute;right:4px;width:36px;height:36px;display:flex;align-items:center;justify-content:center;color:var(--muted);border-radius:8px}
.nav-search button:hover{color:var(--brand)}
.nav-toggle{display:none;width:44px;height:44px;flex-direction:column;align-items:center;justify-content:center;gap:5px;border:1px solid var(--line);border-radius:var(--r-btn)}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform var(--t),opacity var(--t)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-drawer{
  display:none;position:absolute;left:0;right:0;top:100%;
  background:rgba(6,10,20,.98);border-bottom:1px solid var(--line);
  padding:18px 20px 26px;box-shadow:0 24px 40px -24px rgba(0,0,0,.95);
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a.m-link{display:flex;align-items:center;min-height:44px;font-size:16px;color:var(--muted);border-bottom:1px solid var(--line)}
.mobile-drawer a.m-link.is-active{color:var(--brand)}
.mobile-drawer form{display:flex;gap:10px;margin-top:16px}
.mobile-drawer input{flex:1;height:44px;border-radius:var(--r-btn);background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text);padding:0 14px}
.mobile-drawer input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(18,227,164,.18)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),color var(--t),filter var(--t);
  text-align:center;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#12E3A4,#0FB8D6);color:#04150F;
  box-shadow:0 0 0 1px rgba(18,227,164,.35),0 8px 24px rgba(18,227,164,.22);
}
.btn-primary:hover{color:#04150F;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(18,227,164,.55),0 16px 34px rgba(18,227,164,.3)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(18,227,164,.4),0 4px 12px rgba(18,227,164,.2)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{border-color:var(--line-brand);background:rgba(18,227,164,.08);color:var(--brand)}
.btn-lg{min-height:48px;padding:0 28px;font-size:16px}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn-pill{border-radius:999px}

/* ---------- Hero ---------- */
.hero{position:relative;padding:80px 0 96px;overflow:hidden}
.hero::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,227,164,.5),transparent);opacity:.5;
}
.hero-grid{display:flex;align-items:center;gap:56px;flex-wrap:wrap}
.hero-copy{flex:1 1 480px;min-width:0}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:999px;font-size:12px;color:var(--brand);background:rgba(18,227,164,.1);border:1px solid rgba(18,227,164,.28);margin-bottom:22px}
.hero h1{font-size:clamp(28px,3.5vw,44px);font-weight:800;line-height:1.25;margin-bottom:20px}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero-sub{font-size:17px;color:var(--muted);line-height:1.9;max-width:600px;margin-bottom:30px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:40px}
.hero-stats{display:flex;gap:40px;flex-wrap:wrap}
.hero-stat .num{display:block;font-size:26px;font-weight:800;color:var(--brand);line-height:1.2}
.hero-stat span.txt{font-size:13px;color:var(--muted)}
.hero-visual{flex:1 1 420px;min-width:0;position:relative}
.hero-figure{
  position:relative;border-radius:var(--r-panel);overflow:hidden;
  border:1px solid var(--line-brand);aspect-ratio:16/10;
  box-shadow:0 30px 60px -30px rgba(0,0,0,.95);
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,8,15,.15),rgba(5,8,15,.75))}
.hero-float{
  position:absolute;left:18px;right:18px;bottom:18px;z-index:2;
  padding:18px 20px;border-radius:var(--r-card);
  background:linear-gradient(160deg,rgba(255,255,255,.09),rgba(255,255,255,.03));
  backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.hero-float h3{font-size:15px;font-weight:600;margin-bottom:10px}
.hero-float ul li{display:flex;gap:8px;font-size:13px;color:var(--muted);line-height:1.8}
.hero-float ul li i{color:var(--brand);font-size:11px;margin-top:8px}
.hero-float .link-arrow{margin-top:12px;font-size:13px}

/* ---------- Bento ---------- */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:24px}
.bento-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-card);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card),var(--shadow-inset);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.bento-card:hover{transform:translateY(-4px);border-color:var(--line-brand)}
.bento-cover{overflow:hidden;position:relative;flex-shrink:0;background:var(--panel)}
.bento-cover img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease)}
.bento-card:hover .bento-cover img{transform:scale(1.04)}
.bento-body{padding:22px 24px;display:flex;flex-direction:column;align-items:flex-start;gap:10px}
.bento-body h3{font-size:18px;font-weight:600}
.bento-body p{font-size:14px;color:var(--muted);line-height:1.8;margin:0}
.bento-a{grid-column:span 3;grid-row:span 2}
.bento-a .bento-cover{flex:1 1 auto;min-height:250px}
.bento-a .bento-body h3{font-size:22px}
.bento-b,.bento-c{grid-column:span 3;flex-direction:row}
.bento-b .bento-cover,.bento-c .bento-cover{flex:0 0 42%;min-height:160px}
.bento-b .bento-body,.bento-c .bento-body{justify-content:center;flex:1 1 auto}
.bento-d,.bento-e,.bento-f{grid-column:span 2}
.bento-d .bento-cover,.bento-e .bento-cover,.bento-f .bento-cover{height:150px}

/* ---------- 评价轮播 ---------- */
.reviews .carousel{
  display:flex;gap:20px;overflow-x:auto;padding:6px 4px 22px;
  scroll-snap-type:x mandatory;scrollbar-width:none;cursor:grab;
}
.reviews .carousel::-webkit-scrollbar{display:none}
.review-card{
  flex:0 0 320px;scroll-snap-align:start;padding:22px;
  border-radius:var(--r-card);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);box-shadow:var(--shadow-card),var(--shadow-inset);
  transition:border-color var(--t),transform var(--t);
}
.review-card:hover{border-color:var(--line-brand);transform:translateY(-3px)}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{width:42px;height:42px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;color:#04150F;background:linear-gradient(135deg,#12E3A4,#0FB8D6)}
.avatar.v2{background:linear-gradient(135deg,#7C5CFF,#0FB8D6);color:#fff}
.avatar.v3{background:linear-gradient(135deg,#FF7A45,#FFB35C);color:#2A0F04}
.avatar.v4{background:linear-gradient(135deg,#0FB8D6,#12E3A4);color:#04150F}
.review-name{font-size:15px;font-weight:600;line-height:1.4}
.stars{color:var(--accent);font-size:12px;letter-spacing:2px}
.review-text{font-size:14px;color:var(--muted);line-height:1.85;margin:0 0 14px}
.review-time{font-size:12px;color:var(--dim)}
.carousel-nav{display:flex;align-items:center;gap:18px;justify-content:center;margin-top:10px}
.carousel-arrow{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:1px solid var(--line-strong);background:rgba(255,255,255,.04);color:var(--muted);transition:all var(--t)}
.carousel-arrow:hover{border-color:var(--line-brand);color:var(--brand);background:rgba(18,227,164,.08)}
.carousel-dots{display:flex;align-items:center;gap:8px}
.carousel-dots .dot{width:6px;height:6px;border-radius:999px;background:rgba(255,255,255,.2);transition:all var(--t);padding:0}
.carousel-dots .dot.is-active{width:18px;background:var(--brand)}

/* ---------- 保障条 ---------- */
.assurance{padding:56px 0;border-top:1px solid transparent;position:relative}
.assurance::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(18,227,164,.45),transparent)}
.assurance-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.assure-item{padding:0 26px;display:flex;gap:14px;align-items:flex-start;border-right:1px solid var(--line)}
.assure-item:last-child{border-right:0}
.assure-item i{font-size:22px;color:var(--brand);margin-top:4px}
.assure-item h3{font-size:15px;font-weight:600;margin-bottom:6px}
.assure-item p{font-size:13px;color:var(--muted);margin:0;line-height:1.75}

/* ---------- CTA 带 ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:var(--r-panel);border:1px solid var(--line);padding:48px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  background:
    radial-gradient(circle at 12% 50%, rgba(18,227,164,.22), transparent 55%),
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px),
    var(--panel);
  background-size:auto,22px 22px,22px 22px,auto;
  box-shadow:var(--shadow-card);
}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);font-weight:800;margin-bottom:10px}
.cta-band p{color:var(--muted);font-size:15px;margin:0;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 资讯列表 ---------- */
.post-card{
  height:100%;display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-card);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);box-shadow:var(--shadow-card),var(--shadow-inset);
  transition:transform var(--t),border-color var(--t);
}
.post-card:hover{transform:translateY(-4px);border-color:var(--line-brand)}
.post-cover{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--panel)}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease)}
.post-card:hover .post-cover img{transform:scale(1.04)}
.post-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto;gap:12px}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px}
.post-meta time{font-size:13px;color:var(--dim)}
.post-title{font-size:17px;font-weight:600;line-height:1.55;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-title a{color:var(--text)}
.post-title a:hover{color:var(--brand)}
.post-excerpt{font-size:14px;color:var(--muted);line-height:1.8;margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto}
.empty-state{text-align:center;padding:64px 24px;border-radius:var(--r-panel);border:1px dashed var(--line-strong);background:rgba(255,255,255,.02)}
.empty-state i{font-size:30px;color:var(--dim);display:block;margin-bottom:14px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px}

/* ---------- FAQ ---------- */
.faq{border-radius:var(--r-card);overflow:hidden;background:var(--glass);backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);border:1px solid var(--line);box-shadow:var(--shadow-card),var(--shadow-inset)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--text);transition:color var(--t)}
.faq-q:hover{color:var(--brand)}
.faq-icon{position:relative;width:18px;height:18px;flex-shrink:0;transition:transform 260ms var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);border-radius:2px}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;transition:opacity 260ms var(--ease)}
.faq-item.is-open .faq-icon{transform:rotate(90deg)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows 260ms var(--ease)}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden;background:rgba(255,255,255,.03)}
.faq-a-inner p{padding:4px 24px 22px;font-size:15px;color:var(--muted);line-height:1.9;margin:0}

/* ---------- 页脚 ---------- */
.site-footer{background:#04060C;border-top:1px solid transparent;position:relative;margin-top:40px}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,rgba(18,227,164,.6),rgba(18,227,164,.05) 55%,transparent)}
.footer-main{padding:72px 0 48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{font-size:18px;font-weight:700}
.footer-desc{font-size:14px;color:var(--muted);line-height:1.85;max-width:300px;margin:0}
.footer-col h3{font-size:15px;font-weight:600;margin-bottom:18px;color:var(--text)}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:#fff}
.footer-col .plain{font-size:14px;color:var(--muted);line-height:1.85}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0;text-align:center}
.footer-bottom p{font-size:13px;color:var(--dim);margin:0}

/* ---------- 响应式 ---------- */
@media (min-width:1440px){
  :root{--max-w:1360px}
}
@media (max-width:1023px){
  :root{--sec-y:72px}
  .nav-wrap{padding:0 20px;height:60px;gap:14px}
  .nav-links,.nav-search{display:none}
  .nav-toggle{display:flex}
  .nav-right{gap:12px}
  .hero{padding:72px 0 64px}
  .hero-grid{gap:36px}
  .bento{grid-template-columns:repeat(2,1fr)}
  .bento-a{grid-column:span 2;grid-row:auto}
  .bento-b,.bento-c{grid-column:span 2}
  .bento-d,.bento-e,.bento-f{grid-column:span 1}
  .assurance-grid{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .assure-item:nth-child(2){border-right:0}
  .cta-band{padding:36px 28px}
}
@media (max-width:767px){
  :root{--sec-y:60px}
  body{font-size:15px}
  .notice-bar{justify-content:flex-start;font-size:12px;gap:6px}
  .hero h1{font-size:27px}
  .hero-sub{font-size:15px}
  .hero-stats{gap:24px}
  .hero-stat .num{font-size:22px}
  .bento{grid-template-columns:1fr;gap:18px}
  .bento-a,.bento-b,.bento-c,.bento-d,.bento-e,.bento-f{grid-column:span 1}
  .bento-b,.bento-c{flex-direction:column}
  .bento-b .bento-cover,.bento-c .bento-cover{flex:0 0 auto;height:170px;min-height:0;width:100%}
  .reviews .carousel{gap:14px}
  .review-card{flex:0 0 84vw}
  .assurance-grid{grid-template-columns:1fr;gap:26px}
  .assure-item{border-right:0;padding:0}
  .cta-band{padding:28px 20px;border-radius:16px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .sec-head{margin-bottom:28px}
  .faq-q{padding:14px 18px;font-size:15px}
  .faq-a-inner p{padding:4px 18px 20px;font-size:14px}
  .footer-main{padding:52px 0 34px}
}
@media (max-width:519px){
  .nav-wrap{padding:0 16px}
  .brand-text{font-size:16px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-float{left:12px;right:12px;bottom:12px;padding:14px 16px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}
@supports not ((backdrop-filter:blur(14px)) or (-webkit-backdrop-filter:blur(14px))){
  .bento-card,.review-card,.post-card,.faq,.hero-float,.site-header,.notice-bar{background:#0C1220}
  .site-header{background:rgba(5,8,15,.96)}
}

/* roulang page: article */
/* ===== 设计变量 ===== */
:root{
  --brand:#12E3A4;
  --brand-deep:#0FB8D6;
  --warn:#FF7A45;
  --violet:#7C5CFF;
  --bg:#05080F;
  --panel:#0C1220;
  --text:#E8EDF5;
  --muted:#9AA7BC;
  --dim:#5A6579;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.18);
  --line-brand:rgba(18,227,164,.35);
  --glass:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  --r-sm:6px;
  --r-md:10px;
  --r-card:16px;
  --r-panel:20px;
  --r-pill:999px;
  --sh-card:0 18px 40px -20px rgba(0,0,0,.85);
  --sh-glow:0 0 0 1px rgba(18,227,164,.35),0 8px 24px rgba(18,227,164,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:220ms cubic-bezier(.2,.7,.3,1);
  --container:1280px;
}
@media (min-width:1440px){:root{--container:1360px;}}

/* ===== 基础 reset ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(620px 420px at 88% -8%, rgba(18,227,164,.13), transparent 70%),
    radial-gradient(540px 440px at 2% 102%, rgba(124,92,255,.07), transparent 72%);
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.03;
  background-image:linear-gradient(rgba(255,255,255,.9) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:24px 24px;
}
h1,h2,h3,h4,h5,h6{
  font-family:inherit;
  color:var(--text);
  line-height:1.25;
  margin:0 0 14px;
  letter-spacing:0;
}
p{margin:0 0 16px;font-size:16px;line-height:1.9;color:var(--muted);}
a{color:var(--brand);text-decoration:none;transition:color var(--t),border-color var(--t),opacity var(--t);}
a:hover{color:var(--brand);}
img{max-width:100%;height:auto;display:block;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;}
hr{border:0;border-top:1px solid var(--line);margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

/* ===== 容器与栅格 ===== */
.row{max-width:var(--container);}
.row.gutters{padding-left:20px;padding-right:20px;}
@media (min-width:1024px){
  .row.gutters{padding-left:32px;padding-right:32px;}
}
.row .column,.row .columns{padding-left:12px;padding-right:12px;}
.main-wrap{position:relative;z-index:1;}
.section{padding:64px 0;position:relative;z-index:1;}
@media (min-width:1024px){
  .section{padding:96px 0;}
}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,8,15,.72);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.07);
  transition:background var(--t),box-shadow var(--t);
}
.site-header.is-scrolled{background:rgba(5,8,15,.94);box-shadow:0 14px 34px -22px rgba(0,0,0,.95);}
.header-row{display:flex;align-items:center;justify-content:space-between;gap:18px;height:64px;position:relative;}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto;}
.brand-mark{
  width:28px;height:28px;display:inline-block;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  clip-path:polygon(50% 0%,93% 25%,93% 75%,50% 100%,7% 75%,7% 25%);
  filter:drop-shadow(0 0 10px rgba(18,227,164,.6));
}
.brand-text{font-size:18px;font-weight:700;color:var(--text);letter-spacing:.01em;white-space:nowrap;}
.nav-cluster{display:flex;align-items:center;gap:28px;flex:1 1 auto;justify-content:flex-end;}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  color:var(--muted);font-size:16px;font-weight:500;
  padding:8px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;border-radius:2px;
  background:var(--brand);transition:left var(--t),right var(--t);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{left:0;right:0;}
.nav-link.is-active{color:var(--brand);}
.nav-link.is-active::after{left:0;right:0;}
.nav-tools{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;width:220px;padding:0 12px;
  border:1px solid var(--line);border-radius:var(--r-md);
  background:rgba(255,255,255,.04);
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.nav-search i{color:var(--dim);font-size:13px;}
.nav-search input{
  flex:1 1 auto;min-width:0;background:transparent;border:0;outline:none;
  font-size:14px;color:var(--text);height:100%;
}
.nav-search input::placeholder{color:var(--dim);}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(18,227,164,.18);background:rgba(18,227,164,.05);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform var(--t),opacity var(--t);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),color var(--t);
}
.btn-primary{
  color:#03150F;
  background:linear-gradient(135deg,#12E3A4,#0FB8D6);
  box-shadow:var(--sh-glow);
}
.btn-primary:hover{
  color:#03150F;
  transform:translateY(-2px);
  filter:brightness(1.06);
  box-shadow:0 0 0 1px rgba(18,227,164,.5),0 14px 32px rgba(18,227,164,.3);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(18,227,164,.4),0 6px 16px rgba(18,227,164,.2);}
.btn-ghost{
  color:var(--text);background:transparent;border:1px solid var(--line-strong);
}
.btn-ghost:hover{color:var(--brand);border-color:var(--line-brand);background:rgba(18,227,164,.08);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;border-radius:var(--r-pill);}
.btn-lg{min-height:48px;padding:0 28px;font-size:16px;}
.btn-pill{border-radius:var(--r-pill);}

/* ===== 通用文本元素 ===== */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px;flex-wrap:wrap;}
.sec-head h2{font-size:clamp(24px,3vw,36px);font-weight:700;margin:0;}
.sec-head p{margin:8px 0 0;font-size:15px;color:var(--muted);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);}
.link-arrow span{transition:transform var(--t);display:inline-block;}
.link-arrow:hover span{transform:translateX(4px);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  padding:5px 12px;border-radius:var(--r-sm);
  background:rgba(18,227,164,.12);color:var(--brand);
  border:1px solid var(--line-brand);
}
.badge-warm{background:rgba(255,122,69,.14);color:var(--warn);border-color:rgba(255,122,69,.3);}
.tag{
  display:inline-flex;align-items:center;
  font-size:12px;padding:5px 12px;border-radius:var(--r-sm);
  background:rgba(18,227,164,.1);color:var(--brand);
  border:1px solid var(--line);
  transition:background var(--t),border-color var(--t),color var(--t);
}
.tag:hover{background:rgba(18,227,164,.18);border-color:var(--line-brand);color:var(--brand);}
.card{
  position:relative;border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--sh-card);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  overflow:hidden;
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.card:hover{transform:translateY(-4px);border-color:var(--line-brand);box-shadow:0 24px 48px -24px rgba(0,0,0,.95);}
.card-media{display:block;position:relative;aspect-ratio:16/10;overflow:hidden;border-radius:12px;margin:0;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease);}
.card:hover .card-media img{transform:scale(1.04);}
.card-media::after{content:"";position:absolute;inset:0;background:rgba(5,8,15,.12);}
.card-body{padding:20px 22px 22px;}
.card-title{font-size:18px;font-weight:600;margin:0 0 8px;line-height:1.4;}
.card-title a{color:var(--text);}
.card-title a:hover{color:var(--brand);}
.card-desc{font-size:14px;color:var(--muted);margin:0 0 14px;line-height:1.75;}
.img-fallback{
  background:var(--panel);border:1px solid var(--line);border-radius:12px;
  background-image:linear-gradient(rgba(18,227,164,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(18,227,164,.08) 1px,transparent 1px);
  background-size:18px 18px;
}

/* ===== 面包屑 ===== */
.crumb-bar{padding:26px 0 0;position:relative;z-index:1;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--brand);}
.crumb-sep{color:var(--dim);}
.crumb-current{color:var(--text);font-weight:500;max-width:52vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ===== 文章头部 ===== */
.article-hero{padding:28px 0 0;position:relative;z-index:1;}
.article-head{max-width:900px;}
.article-head h1{
  font-size:clamp(28px,4vw,44px);
  font-weight:800;
  line-height:1.28;
  margin:16px 0 18px;
  letter-spacing:0;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--dim);}
.meta-row .dot{width:3px;height:3px;border-radius:50%;background:var(--dim);display:inline-block;}
.head-line{margin:26px 0 0;border-top:1px solid var(--line);}

/* ===== 文章正文区 ===== */
.article-layout{padding-top:40px;padding-bottom:20px;}
.article-main{position:relative;}
.article-body{
  max-width:780px;margin:0 auto;
  font-size:16px;line-height:1.9;color:#D6DEEA;
}
.article-body h2{
  position:relative;
  font-size:clamp(20px,2vw,24px);
  font-weight:700;
  margin:44px 0 18px;
  padding-left:14px;
  color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--brand-deep));
}
.article-body h3{font-size:18px;font-weight:600;margin:32px 0 14px;color:var(--text);}
.article-body h4{font-size:16px;font-weight:600;margin:24px 0 12px;color:var(--text);}
.article-body p{margin:0 0 20px;font-size:16px;line-height:1.9;color:#D6DEEA;}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(18,227,164,.4);}
.article-body a:hover{color:var(--brand-deep);}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;}
.article-body li{margin-bottom:10px;line-height:1.9;}
.article-body blockquote{
  margin:24px 0;padding:18px 20px;
  border-left:3px solid var(--brand);
  border-radius:0 var(--r-card) var(--r-card) 0;
  background:var(--glass);
  color:var(--muted);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{max-width:100%;height:auto;border-radius:12px;margin:24px auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--dim);text-align:center;margin-top:10px;}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:14px;
  display:block;overflow-x:auto;white-space:nowrap;
  border:1px solid var(--line);border-radius:12px;
}
.article-body th{
  background:var(--glass);color:var(--text);font-weight:600;
  text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);
}
.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);color:var(--muted);}
.article-body code{
  background:rgba(18,227,164,.1);color:var(--brand);
  padding:2px 6px;border-radius:4px;font-size:14px;
}

/* 右侧目录 */
.article-aside{position:relative;}
.toc-card{
  position:sticky;top:96px;
  padding:20px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--sh-card);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
}
.toc-card h4{font-size:13px;letter-spacing:.1em;color:var(--muted);margin:0 0 14px;font-weight:600;}
.toc-list{list-style:none;margin:0;padding:0;max-height:58vh;overflow:auto;scrollbar-width:thin;}
.toc-list a{
  display:block;padding:7px 0 7px 10px;font-size:13.5px;color:var(--muted);
  border-left:2px solid transparent;line-height:1.6;
}
.toc-list a:hover{color:var(--text);}
.toc-list a.is-current{color:var(--brand);border-left-color:var(--brand);}
.toc-list .lvl-3 a{padding-left:24px;font-size:13px;}
.toc-empty{font-size:13px;color:var(--dim);}

/* ===== 空态 ===== */
.empty-state{
  max-width:780px;margin:0 auto;padding:52px 26px;text-align:center;
  border-radius:var(--r-panel);border:1px dashed var(--line-strong);
  background:var(--glass);
}
.empty-state i{font-size:26px;color:var(--brand);margin-bottom:14px;display:block;}
.empty-state p{font-size:15px;color:var(--muted);margin-bottom:20px;}

/* ===== 标签区 ===== */
.tag-block{max-width:780px;margin:44px auto 0;padding-top:26px;border-top:1px solid var(--line);}
.tag-block h3{font-size:14px;color:var(--muted);font-weight:600;margin:0 0 14px;}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;}

/* ===== 相关推荐 ===== */
.related{padding:56px 0;border-top:1px solid var(--line);margin-top:56px;position:relative;z-index:1;}
@media (min-width:1024px){.related{padding:80px 0;margin-top:80px;}}
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rec-card .card-body{padding:18px 20px 20px;}
.rec-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px;}
.rec-meta .time{font-size:13px;color:var(--dim);font-variant-numeric:tabular-nums;}
.rec-card .card-title{font-size:17px;margin:0;}

/* ===== 返回入口 ===== */
.back-zone{padding:0 0 72px;position:relative;z-index:1;}
.back-panel{
  border-radius:var(--r-panel);
  padding:30px 28px;
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--sh-card);
  display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap;
}
.back-panel h3{font-size:18px;margin:0 0 6px;}
.back-panel p{margin:0;font-size:14px;}
.back-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ===== CTA 带 ===== */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-panel);
  padding:40px 32px;
  background:var(--panel);
  border:1px solid var(--line-brand);
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(420px 260px at 12% 0%, rgba(18,227,164,.18), transparent 70%),
    linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:auto,22px 22px,22px 22px;
  opacity:.9;
}
.cta-band > *{position:relative;z-index:1;}
.cta-copy h2{font-size:clamp(20px,2.4vw,28px);margin:0 0 8px;font-weight:700;}
.cta-copy p{margin:0;font-size:14px;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;z-index:1;
  background:#04060C;
  border-top:1px solid var(--line);
  margin-top:20px;
}
.site-footer::before{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,var(--brand),rgba(18,227,164,0));
  opacity:.6;
}
.footer-main{padding:64px 0 24px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-text{font-size:18px;font-weight:700;color:var(--text);}
.footer-desc{font-size:14px;color:var(--muted);line-height:1.85;margin:0;max-width:340px;}
.footer-col h3{font-size:15px;font-weight:600;margin:0 0 16px;color:var(--text);}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:var(--muted);}
.footer-col a:hover{color:#fff;}
.footer-col .plain{font-size:14px;color:var(--muted);margin:0;line-height:1.85;}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0 26px;}
.footer-bottom p{margin:0;font-size:13px;color:var(--dim);text-align:center;}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .article-aside{display:none;}
  .article-main{flex:0 0 100%;max-width:100%;width:100%;}
}
@media (max-width:1024px){
  .cards-3{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:1023px){
  .nav-toggle{display:flex;}
  .nav-search{display:none;}
  .nav-cluster{
    position:absolute;top:64px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(7,11,20,.98);
    border-bottom:1px solid var(--line);
    padding:6px 20px 18px;
    display:none;
    box-shadow:0 24px 40px -24px rgba(0,0,0,.95);
  }
  .nav-cluster.is-open{display:flex;}
  .nav-links{flex-direction:column;align-items:stretch;gap:0;width:100%;}
  .nav-link{width:100%;padding:15px 0;font-size:15px;border-bottom:1px solid var(--line);min-height:44px;}
  .nav-link::after{display:none;}
  .nav-tools{width:100%;margin-top:16px;}
  .nav-tools .btn{width:100%;}
  .brand-text{font-size:16px;}
}
@media (max-width:640px){
  body{font-size:15px;}
  .section{padding:56px 0;}
  .sec-head{margin-bottom:24px;}
  .cards-3{grid-template-columns:1fr;gap:18px;}
  .article-head h1{font-size:26px;}
  .crumb-current{max-width:44vw;}
  .cta-band{padding:30px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .back-panel{padding:24px 20px;}
  .back-actions{width:100%;}
  .back-actions .btn{flex:1 1 auto;}
  .footer-main{padding:48px 0 16px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}
@supports not ((-webkit-backdrop-filter:blur(14px)) or (backdrop-filter:blur(14px))){
  .card,.toc-card,.back-panel,.empty-state{background:var(--panel);}
  .site-header{background:#05080F;}
}

/* roulang page: category1 */
:root{
  --brand:#12E3A4;
  --brand-2:#0FB8D6;
  --coral:#FF7A45;
  --violet:#7C5CFF;
  --bg:#05080F;
  --panel:#0C1220;
  --text:#E8EDF5;
  --muted:#9AA7BC;
  --dim:#5A6579;
  --line:rgba(255,255,255,.08);
  --line-brand:rgba(18,227,164,.35);
  --r-card:16px;
  --r-panel:20px;
  --r-btn:10px;
  --r-tag:6px;
  --shadow-card:0 18px 40px -20px rgba(0,0,0,.85);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:220ms cubic-bezier(.2,.7,.3,1);
  --maxw:1280px;
  --glass:linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
}

*,*::before,*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;}

body{
  margin:0;
  padding-top:64px;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:
    radial-gradient(900px 520px at 88% -6%, rgba(18,227,164,.13), transparent 70%),
    radial-gradient(760px 560px at -8% 94%, rgba(124,92,255,.07), transparent 72%),
    var(--bg);
  background-attachment:fixed;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:24px 24px;
  opacity:.06;
}

body::after{
  content:"";
  position:fixed;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg, transparent, rgba(18,227,164,.55), transparent);
  opacity:.5;
  pointer-events:none;
  z-index:2;
}

img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:var(--t);}
a:hover{color:#6BFFD0;}
p{margin:0 0 16px;color:var(--muted);}
h1,h2,h3,h4{margin:0 0 14px;line-height:1.25;color:var(--text);font-weight:700;}
h1{font-weight:800;font-size:clamp(30px,4.6vw,48px);letter-spacing:0;}
h2{font-size:clamp(24px,3vw,32px);}
h3{font-size:20px;font-weight:600;}
ul,ol{margin:0 0 16px;padding-left:20px;color:var(--muted);}
li{margin-bottom:8px;}
button{font-family:inherit;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

/* ---------- Foundation 覆盖 ---------- */
.row{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
  max-width:none;
  margin:0;
  width:auto;
}
.row.gutters{margin:0;max-width:none;}
.column,.columns{
  width:auto;
  float:none;
  padding:0;
  min-width:0;
}
.row > .column{grid-column:span 12;}
@media screen and (min-width:520px){
  .row > .column.small-6{grid-column:span 6;}
}
@media screen and (min-width:640px){
  .row > .column.medium-3{grid-column:span 3;}
  .row > .column.medium-4{grid-column:span 4;}
  .row > .column.medium-6{grid-column:span 6;}
  .row > .column.medium-8{grid-column:span 8;}
}
@media screen and (min-width:1024px){
  .row > .column.large-3{grid-column:span 3;}
  .row > .column.large-4{grid-column:span 4;}
  .row > .column.large-5{grid-column:span 5;}
  .row > .column.large-6{grid-column:span 6;}
  .row > .column.large-7{grid-column:span 7;}
  .row > .column.large-8{grid-column:span 8;}
}
@media screen and (max-width:639px){
  .row{gap:16px;}
}

/* ---------- 容器 ---------- */
.container{
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 20px;
  position:relative;
  z-index:1;
}
@media screen and (min-width:1024px){
  .container{padding:0 32px;}
}

.section{padding:64px 0;}
@media screen and (min-width:1024px){
  .section{padding:96px 0;}
}
.section-head{margin-bottom:32px;max-width:760px;}
.section-head p{font-size:16px;margin-bottom:0;}
.section-head h2{margin-bottom:10px;}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--brand);
  background:rgba(18,227,164,.12);
  border:1px solid var(--line-brand);
  border-radius:var(--r-tag);
  padding:4px 10px;
  margin-bottom:14px;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  height:64px;
  background:rgba(5,8,15,.72);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.07);
  transition:var(--t);
}
.site-header.is-scrolled{
  background:rgba(5,8,15,.94);
  box-shadow:0 14px 34px -20px rgba(0,0,0,.95);
}
.header-inner{
  max-width:var(--maxw);
  height:100%;
  margin:0 auto;
  padding:0 20px;
  display:flex;
  align-items:center;
  gap:20px;
}
@media screen and (min-width:1024px){
  .header-inner{padding:0 32px;gap:28px;}
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:26px;height:26px;
  background:linear-gradient(135deg,#12E3A4,#0FB8D6);
  clip-path:polygon(50% 0%,93% 25%,93% 75%,50% 100%,7% 75%,7% 25%);
  -webkit-filter:drop-shadow(0 0 10px rgba(18,227,164,.6));
  filter:drop-shadow(0 0 10px rgba(18,227,164,.6));
}
.brand-text{
  font-size:18px;
  font-weight:700;
  color:var(--text);
  letter-spacing:.01em;
  white-space:nowrap;
}
.brand:hover .brand-text{color:#fff;}

.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:8px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 12px;
  font-size:15px;
  color:var(--muted);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;right:50%;
  bottom:6px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transition:var(--t);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{left:12px;right:12px;}
.nav-link.is-active{color:var(--brand);}
.nav-link.is-active::after{left:12px;right:12px;}

.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  width:210px;
  height:38px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  transition:var(--t);
}
.nav-search i{color:var(--dim);font-size:13px;}
.nav-search input{
  flex:1;
  min-width:0;
  height:100%;
  background:none;
  border:0;
  outline:0;
  color:var(--text);
  font-size:14px;
}
.nav-search input::placeholder{color:var(--dim);}
.nav-search:focus-within{
  border-color:var(--line-brand);
  box-shadow:0 0 0 4px rgba(18,227,164,.14);
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  color:var(--text);
  font-size:16px;
  cursor:pointer;
  transition:var(--t);
}
.nav-toggle:hover{border-color:var(--line-brand);color:var(--brand);}

@media screen and (max-width:1023px){
  .site-header{height:56px;}
  body{padding-top:56px;}
  .nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:fixed;
    top:56px;left:0;right:0;
    margin:0;
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    padding:12px 16px 20px;
    background:rgba(5,8,15,.98);
    -webkit-backdrop-filter:blur(18px);
    backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 40px -24px rgba(0,0,0,.9);
    opacity:0;
    visibility:hidden;
    transform:translateY(-8px);
    transition:var(--t);
  }
  .nav-links.is-open{opacity:1;visibility:visible;transform:none;}
  .nav-link{padding:0 8px;font-size:15px;}
  .nav-link::after{bottom:2px;}
  .nav-link:hover::after,.nav-link.is-active::after{left:8px;right:8px;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  transition:var(--t);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#12E3A4,#0FB8D6);
  color:#04140D;
  box-shadow:0 0 0 1px rgba(18,227,164,.35), 0 8px 24px rgba(18,227,164,.22);
}
.btn-primary:hover{
  color:#04140D;
  filter:brightness(1.06);
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(18,227,164,.5), 0 14px 34px rgba(18,227,164,.3);
}
.btn-primary:active{
  transform:translateY(0);
  box-shadow:0 0 0 1px rgba(18,227,164,.35), 0 6px 16px rgba(18,227,164,.2);
}
.btn-ghost{
  background:transparent;
  border-color:rgba(255,255,255,.18);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:var(--brand);
  background:rgba(18,227,164,.08);
  color:var(--text);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0);}
.btn-pill{border-radius:999px;}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.btn-lg{min-height:50px;padding:0 28px;font-size:16px;}

/* ---------- 面包屑 ---------- */
.crumbs{
  padding:24px 0 0;
  font-size:13px;
  color:var(--dim);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:var(--dim);}
.crumbs .current{color:var(--text);}

/* ---------- 卡片基础 ---------- */
.glass{
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06), var(--shadow-card);
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  line-height:1.6;
  padding:3px 9px;
  border-radius:var(--r-tag);
  background:rgba(18,227,164,.12);
  border:1px solid var(--line-brand);
  color:var(--brand);
  white-space:nowrap;
}
.tag-hot{
  background:rgba(255,122,69,.14);
  border-color:rgba(255,122,69,.35);
  color:var(--coral);
}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
}
.link-more i{transition:transform var(--t);font-size:12px;}
.link-more:hover i{transform:translateX(4px);}

/* ---------- 内页首屏 ---------- */
.page-hero{
  padding:48px 0 8px;
}
.page-hero h1{margin-bottom:16px;}
.page-hero .lead{
  font-size:17px;
  color:var(--muted);
  max-width:520px;
  margin-bottom:24px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.hero-visual{
  border-radius:var(--r-panel);
  overflow:hidden;
  border:1px solid var(--line-brand);
  box-shadow:var(--shadow-card);
  position:relative;
}
.hero-visual img{
  width:100%;
  height:230px;
  object-fit:cover;
  filter:saturate(105%);
}
@media screen and (min-width:640px){
  .hero-visual img{height:260px;}
}
.hero-visual::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(5,8,15,.1), rgba(5,8,15,.6));
}
.hero-chips{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
}

/* ---------- 图文交替 ---------- */
.alt-item{
  align-items:center;
  padding:36px 0;
}
@media screen and (min-width:1024px){
  .alt-item{padding:48px 0;}
  .alt-item.is-reverse .alt-media{order:2;}
}
.alt-item + .alt-item{border-top:1px solid var(--line);}
.alt-media{
  border-radius:var(--r-panel);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  position:relative;
  transition:var(--t);
}
.alt-media img{
  width:100%;
  height:240px;
  object-fit:cover;
  transition:transform 360ms var(--ease);
}
@media screen and (min-width:640px){
  .alt-media img{height:300px;}
}
.alt-media:hover{border-color:var(--line-brand);transform:translateY(-4px);}
.alt-media:hover img{transform:scale(1.04);}
.alt-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(160deg, rgba(5,8,15,.05), rgba(5,8,15,.4));
  pointer-events:none;
}
.alt-body h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:12px;}
.alt-body .num{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  color:var(--brand);
  letter-spacing:.14em;
  margin-bottom:8px;
  font-variant-numeric:tabular-nums;
}
.alt-body p{font-size:15px;margin-bottom:12px;}
.alt-body .link-more{margin-top:4px;}

/* ---------- 自检清单 ---------- */
.spec-table{
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  overflow:hidden;
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06), var(--shadow-card);
}
.spec-row{
  display:grid;
  grid-template-columns:1fr;
  gap:4px;
  padding:18px 22px;
  border-top:1px solid var(--line);
}
.spec-row:first-child{border-top:0;}
.spec-row .k{
  font-size:15px;
  font-weight:600;
  color:var(--text);
  display:flex;
  align-items:center;
  gap:8px;
}
.spec-row .k::before{
  content:"";
  width:6px;height:6px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 10px rgba(18,227,164,.7);
  flex-shrink:0;
}
.spec-row .v{font-size:15px;color:var(--muted);line-height:1.8;}
@media screen and (min-width:768px){
  .spec-row{grid-template-columns:220px 1fr;gap:20px;align-items:start;padding:20px 26px;}
}

/* ---------- FAQ ---------- */
.faq-list{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06), var(--shadow-card);
}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;
  min-height:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:14px 20px;
  background:none;
  border:0;
  color:var(--text);
  font-size:16px;
  font-weight:600;
  text-align:left;
  cursor:pointer;
  transition:var(--t);
}
.faq-q:hover{color:var(--brand);}
.faq-ico{
  flex-shrink:0;
  width:24px;height:24px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--muted);
  font-size:11px;
  transition:transform 260ms var(--ease), color 260ms var(--ease), border-color 260ms var(--ease);
}
.faq-item.is-open .faq-ico{
  transform:rotate(45deg);
  color:var(--brand);
  border-color:var(--line-brand);
}
.faq-a{
  max-height:0;
  overflow:hidden;
  background:rgba(255,255,255,.03);
  transition:max-height 260ms var(--ease);
}
.faq-a p{
  margin:0;
  padding:0 20px 18px;
  font-size:15px;
  line-height:1.9;
}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-panel);
  border:1px solid var(--line-brand);
  padding:40px 24px;
  background:
    radial-gradient(560px 220px at 10% 50%, rgba(18,227,164,.2), transparent 70%),
    radial-gradient(400px 200px at 92% 10%, rgba(124,92,255,.14), transparent 72%),
    #0A1018;
  display:flex;
  flex-wrap:wrap;
  gap:24px;
  align-items:center;
  justify-content:space-between;
  box-shadow:var(--shadow-card);
}
.cta-band::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size:24px 24px;
  opacity:.5;
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:1;}
.cta-band .line{
  font-size:clamp(20px,2.6vw,28px);
  font-weight:700;
  color:var(--text);
  line-height:1.35;
  margin:0 0 8px;
}
.cta-band .sub{margin:0;font-size:14px;color:var(--muted);}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
@media screen and (min-width:1024px){
  .cta-band{padding:52px 44px;}
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:80px;
  background:#04060C;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg, rgba(18,227,164,.75), rgba(18,227,164,0));
}
.footer-main{padding:56px 0 16px;}
.footer-main > .row{
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 20px;
  gap:24px;
}
@media screen and (min-width:1024px){
  .footer-main > .row{padding:0 32px;}
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.footer-desc{
  font-size:14px;
  color:var(--muted);
  line-height:1.9;
  margin:0;
  max-width:340px;
}
.footer-col h3{
  font-size:15px;
  font-weight:600;
  margin-bottom:14px;
  color:var(--text);
}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{
  font-size:14px;
  color:var(--muted);
  display:inline-flex;
  align-items:center;
  min-height:32px;
}
.footer-col a:hover{color:var(--text);}
.footer-col .plain{
  font-size:14px;
  color:var(--muted);
  line-height:1.9;
  margin:0;
  max-width:320px;
}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 28px;
  margin-top:24px;
}
.footer-bottom > .row{
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 20px;
}
@media screen and (min-width:1024px){
  .footer-bottom > .row{padding:0 32px;}
}
.footer-bottom p{
  margin:0;
  font-size:13px;
  color:var(--dim);
  text-align:center;
  line-height:1.8;
}

/* ---------- 低端设备回退 ---------- */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))){
  .glass,.spec-table,.faq-list,.site-header{background:#0C1220;}
  .site-header{background:rgba(5,8,15,.96);}
}
@media (prefers-reduced-transparency: reduce){
  .glass,.spec-table,.faq-list{background:#0C1220;}
}
@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category2 */
:root{
  --brand:#12E3A4;
  --brand-2:#0FB8D6;
  --coral:#FF7A45;
  --violet:#7C5CFF;
  --bg:#05080F;
  --panel:#0C1220;
  --text:#E8EDF5;
  --muted:#9AA7BC;
  --dim:#5A6579;
  --line:rgba(255,255,255,.08);
  --line-brand:rgba(18,227,164,.35);
  --glass:linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  --radius-card:16px;
  --radius-panel:20px;
  --radius-btn:10px;
  --shadow-card:0 18px 40px -20px rgba(0,0,0,.85);
  --ease:220ms cubic-bezier(.2,.7,.3,1);
  --maxw:1280px;
  --gap:24px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding:0;
  background-color:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(circle at 86% 6%, rgba(18,227,164,.13), transparent 44%),
    radial-gradient(circle at 4% 96%, rgba(124,92,255,.08), transparent 42%),
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px) 0 0/24px 24px,
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px) 0 0/24px 24px;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease);}
a:hover{color:#5CF2C4;}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:0;font-weight:700;}
p{margin:0 0 16px;}
ul{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.site{position:relative;z-index:1;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 32px;width:100%;}
@media (min-width:1440px){.container{max-width:1360px;}}
.num{font-variant-numeric:tabular-nums;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(5,8,15,.72);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.07);
  transition:background var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{
  background:rgba(5,8,15,.92);
  box-shadow:0 14px 34px -22px rgba(0,0,0,.95);
}
.header-inner{
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 32px;
  height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
@media (min-width:1440px){.header-inner{max-width:1360px;}}
.nav-cluster{display:flex;align-items:center;gap:24px;min-width:0;}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:18px;letter-spacing:.2px;white-space:nowrap;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:28px;height:28px;flex:none;display:inline-block;
  background:linear-gradient(135deg,#12E3A4,#0FB8D6);
  clip-path:polygon(50% 0%,93% 25%,93% 75%,50% 100%,7% 75%,7% 25%);
  box-shadow:0 0 18px rgba(18,227,164,.55);
}
.nav-links{display:flex;align-items:center;gap:20px;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  font-size:16px;
  color:var(--muted);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;bottom:6px;
  width:0;height:2px;
  background:var(--brand);
  border-radius:2px;
  transform:translateX(-50%);
  transition:width var(--ease);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{width:70%;}
.nav-link.is-active{color:var(--brand);}
.nav-link.is-active::after{width:70%;box-shadow:0 0 10px rgba(18,227,164,.7);}
.nav-search{
  width:220px;
  height:40px;
  display:flex;
  align-items:center;
  gap:8px;
  padding:0 12px;
  border-radius:var(--radius-btn);
  background:var(--glass);
  border:1px solid var(--line);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.nav-search i{color:var(--muted);font-size:13px;}
.nav-search input{
  flex:1;min-width:0;
  background:transparent;border:0;outline:none;
  color:var(--text);font-size:14px;height:100%;
}
.nav-search input::placeholder{color:var(--dim);}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(18,227,164,.18);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
  white-space:nowrap;
}
.btn-primary{
  color:#04231A;
  background:linear-gradient(135deg,#12E3A4,#0FB8D6);
  box-shadow:0 0 0 1px rgba(18,227,164,.35),0 8px 24px rgba(18,227,164,.22);
}
.btn-primary:hover{
  color:#04231A;
  filter:brightness(1.06);
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(18,227,164,.5),0 14px 32px rgba(18,227,164,.32);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(18,227,164,.4),0 6px 16px rgba(18,227,164,.2);}
.btn-ghost{
  color:var(--text);
  background:transparent;
  border-color:rgba(255,255,255,.18);
}
.btn-ghost:hover{color:var(--text);border-color:var(--brand);background:rgba(18,227,164,.08);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-nav{min-height:40px;padding:0 18px;border-radius:999px;font-size:14px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  color:var(--text);
  font-size:16px;
}

/* ---------- breadcrumb ---------- */
.crumb-bar{border-bottom:1px solid var(--line);background:rgba(255,255,255,.015);}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding:14px 0;
  font-size:13px;color:var(--muted);
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:var(--dim);}
.crumb .current{color:var(--brand);}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;
  padding:72px 0 64px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.cat-hero::after{
  content:"";
  position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,227,164,.55),transparent);
  opacity:.6;
}
.cat-hero-grid{display:flex;align-items:center;gap:48px;flex-wrap:wrap;}
.cat-hero-text{flex:1 1 520px;min-width:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;
  color:var(--brand);
  padding:6px 12px;
  border-radius:6px;
  background:rgba(18,227,164,.12);
  border:1px solid rgba(18,227,164,.28);
  margin-bottom:20px;
}
.cat-hero h1{
  font-size:clamp(30px,4.2vw,46px);
  font-weight:800;
  margin-bottom:16px;
}
.cat-hero .lead{
  font-size:17px;
  color:var(--muted);
  max-width:600px;
  margin-bottom:24px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-figure{
  flex:1 1 380px;
  min-width:0;
  position:relative;
  border-radius:var(--radius-panel);
  overflow:hidden;
  border:1px solid rgba(18,227,164,.3);
  box-shadow:var(--shadow-card);
  aspect-ratio:16/10;
  background:var(--panel);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;opacity:.86;}
.hero-figure::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,.15),rgba(5,8,15,.72));
}
.hero-badge{
  position:absolute;left:18px;bottom:18px;right:18px;
  z-index:2;
  padding:14px 16px;
  border-radius:12px;
  background:linear-gradient(160deg,rgba(255,255,255,.1),rgba(255,255,255,.03));
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  font-size:13px;
  color:var(--text);
  line-height:1.7;
}
.hero-badge strong{color:var(--brand);font-weight:600;}

/* ---------- sections ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{font-size:clamp(24px,3vw,34px);margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:15px;margin:0;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.tag{
  display:inline-flex;align-items:center;
  font-size:12px;
  padding:3px 9px;
  border-radius:6px;
  background:rgba(18,227,164,.12);
  border:1px solid rgba(18,227,164,.26);
  color:var(--brand);
}
.tag.hot{background:rgba(255,122,69,.14);border-color:rgba(255,122,69,.3);color:var(--coral);}

/* ---------- card grid ---------- */
.grid-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap);}
.grid-card{
  display:flex;flex-direction:column;
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
  overflow:hidden;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.grid-card:hover{transform:translateY(-4px);border-color:var(--line-brand);}
.grid-card .thumb{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--panel);
}
.grid-card .thumb img{width:100%;height:100%;object-fit:cover;opacity:.85;transition:transform var(--ease);}
.grid-card:hover .thumb img{transform:scale(1.04);}
.grid-card .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,.05),rgba(5,8,15,.62));
}
.grid-card .thumb .tag{position:absolute;left:14px;top:14px;z-index:2;background:rgba(5,8,15,.62);backdrop-filter:blur(8px);}
.grid-card .body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.grid-card h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.grid-card p{font-size:14px;color:var(--muted);margin:0 0 18px;line-height:1.85;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;
  margin-top:auto;
}
.link-arrow i{transition:transform var(--ease);font-size:12px;}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- steps ---------- */
.steps-wrap{
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  border-radius:var(--radius-panel);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
  padding:40px 32px;
}
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.step{position:relative;padding-right:16px;}
.step::after{
  content:"";
  position:absolute;
  top:22px;left:56px;right:12px;
  border-top:1px dashed rgba(18,227,164,.42);
}
.step:last-child::after{display:none;}
.step-num{
  width:44px;height:44px;flex:none;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  font-size:15px;font-weight:700;
  color:#04231A;
  background:linear-gradient(135deg,#12E3A4,#0FB8D6);
  box-shadow:0 0 0 1px rgba(18,227,164,.4),0 8px 22px rgba(18,227,164,.24);
  margin-bottom:16px;
  position:relative;z-index:2;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.step p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.8;}

/* ---------- assurance strip ---------- */
.assure{
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,transparent,rgba(18,227,164,.5),transparent) 1;
  background:rgba(255,255,255,.02);
}
.assure-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));}
.assure-item{
  padding:28px 24px;
  display:flex;gap:14px;align-items:flex-start;
  border-right:1px solid var(--line);
}
.assure-item:last-child{border-right:0;}
.assure-item i{font-size:20px;color:var(--brand);margin-top:3px;}
.assure-item h3{font-size:15px;font-weight:600;margin-bottom:4px;}
.assure-item p{font-size:13px;color:var(--muted);margin:0;line-height:1.75;}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  transition:border-color var(--ease);
}
.faq-item[open]{border-color:var(--line-brand);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  min-height:56px;
  padding:0 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-icon{
  position:relative;flex:none;
  width:22px;height:22px;
  transition:transform 260ms cubic-bezier(.2,.7,.3,1);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform 260ms cubic-bezier(.2,.7,.3,1),opacity 260ms;
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;}
.faq-item[open] .faq-icon{transform:rotate(180deg);}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0;}
.faq-a{
  padding:0 22px 20px;
  font-size:14.5px;
  color:var(--muted);
  line-height:1.9;
  background:rgba(255,255,255,.03);
}
.faq-a p{margin:0;}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;padding:80px 0;}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background:
    radial-gradient(circle at 20% 50%, rgba(18,227,164,.2), transparent 55%),
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px) 0 0/24px 24px,
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px) 0 0/24px 24px;
  opacity:.9;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  border-radius:var(--radius-panel);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
  padding:40px 44px;
}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:8px;}
.cta-inner p{color:var(--muted);font-size:14.5px;margin:0;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{background:#04060C;position:relative;margin-top:0;}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(18,227,164,.65),rgba(18,227,164,0));
}
.footer-main{padding:64px 0 24px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-text{font-size:18px;font-weight:700;color:var(--text);}
.footer-desc{font-size:13.5px;color:var(--muted);line-height:1.85;margin:0;max-width:320px;}
.footer-col h3{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--text);}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:var(--muted);}
.footer-col a:hover{color:#fff;}
.footer-col .plain{font-size:13.5px;color:var(--muted);line-height:1.85;margin:0;}
.footer-bottom{border-top:1px solid var(--line);padding:18px 0;}
.footer-bottom p{
  margin:0;font-size:13px;color:var(--dim);text-align:center;
}
.row.gutters{margin-left:-12px;margin-right:-12px;}
.row.gutters > [class*="column"]{padding-left:12px;padding-right:12px;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .header-inner{height:56px;padding:0 20px;gap:12px;}
  .container{padding:0 20px;}
  .nav-search{display:none;}
  .nav-links{gap:14px;overflow-x:auto;scrollbar-width:none;}
  .nav-links::-webkit-scrollbar{display:none;}
  .nav-link{font-size:14.5px;}
  .cat-hero{padding:52px 0 48px;}
  .cat-hero-grid{gap:32px;}
  .section{padding:64px 0;}
  .grid-cards{grid-template-columns:1fr;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .step::after{display:none;}
  .assure-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .assure-item:nth-child(2){border-right:0;}
  .assure-item:nth-child(1),.assure-item:nth-child(2){border-bottom:1px solid var(--line);}
  .cta-inner{padding:32px 28px;}
}
@media (max-width:640px){
  body{font-size:15px;}
  .brand-text{font-size:16px;}
  .cat-hero h1{font-size:28px;}
  .cat-hero .lead{font-size:15px;}
  .hero-actions .btn{flex:1 1 auto;}
  .section{padding:56px 0;}
  .steps-wrap{padding:28px 20px;}
  .steps{grid-template-columns:1fr;}
  .assure-grid{grid-template-columns:1fr;}
  .assure-item{border-right:0;border-bottom:1px solid var(--line);}
  .assure-item:last-child{border-bottom:0;}
  .cta-inner{padding:28px 22px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .grid-card .body{padding:18px 18px 20px;}
  .grid-card h3{font-size:17px;}
}
@media (prefers-reduced-transparency:reduce){
  .site-header,.grid-card,.steps-wrap,.faq-item,.cta-inner,.hero-badge{
    backdrop-filter:none;-webkit-backdrop-filter:none;background:var(--panel);
  }
}