/* roulang page: index */
:root{
  --bg-deep:#050A18;
  --bg-mid:#0A1428;
  --bg-soft:#0E1B36;
  --cyan:#38E8FF;
  --violet:#7C5CFF;
  --green:#5CE1A6;
  --amber:#FFB454;
  --text:#EAF2FF;
  --text-dim:#A8B7D4;
  --line:rgba(120,220,255,.16);
  --line-strong:rgba(120,220,255,.36);
  --card-bg:rgba(14,27,54,.72);
  --card-bg-solid:#0D1930;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:10px;
  --sh-card:0 16px 40px rgba(0,0,0,.35);
  --sh-glow:0 0 24px rgba(56,232,255,.25);
  --sec-y:100px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"Inter","PingFang SC",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  color:var(--text);
  background-color:var(--bg-deep);
  background-image:
    radial-gradient(920px 540px at 10% -10%, rgba(56,232,255,.14), transparent 62%),
    radial-gradient(780px 480px at 94% 2%, rgba(124,92,255,.15), transparent 60%),
    linear-gradient(180deg,#050A18 0%,#0A1428 48%,#050A18 100%);
  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(120,220,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,220,255,.045) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 22%, #000 0%, transparent 76%);
  -webkit-mask-image:radial-gradient(circle at 50% 22%, #000 0%, transparent 76%);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--cyan);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:#8ff2ff}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:.02em;color:#fff}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

.wrap{position:relative;z-index:1}
.container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

section{scroll-margin-top:96px}
.sec{padding:var(--sec-y) 0}
.sec-tight{padding:64px 0}

.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);font-weight:600;
  padding:7px 15px;border-radius:999px;
  border:1px solid var(--line-strong);
  background:rgba(56,232,255,.07);
}
.eyebrow i{font-size:11px}
.sec-head{max-width:760px;margin-bottom:52px}
.sec-head h2{font-size:clamp(1.6rem,3.2vw,2.6rem);margin:20px 0 16px}
.sec-head p{color:var(--text-dim);font-size:16.5px;margin:0}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head.center .eyebrow{margin:0 auto}

/* ------- 导航 ------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(5,10,24,.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
  box-shadow:0 10px 34px rgba(0,0,0,.35);
}
.nav-shell{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;min-height:76px;
}
.brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;font-size:20px;letter-spacing:.03em}
.brand:hover{color:#fff}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex:none;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  color:#04101F;font-size:16px;font-weight:900;
  box-shadow:var(--sh-glow);
}
.brand small{display:block;font-size:11px;font-weight:500;color:var(--text-dim);letter-spacing:.18em;margin-top:-3px}

.nav-pill{
  display:flex;align-items:center;gap:4px;
  padding:6px;border-radius:999px;
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.nav-pill a{
  display:inline-block;padding:9px 18px;border-radius:999px;
  font-size:15px;color:var(--text-dim);font-weight:500;
  transition:.24s ease;white-space:nowrap;
}
.nav-pill a:hover{color:#fff;background:rgba(56,232,255,.1)}
.nav-pill a.active{
  color:#04101F;font-weight:700;
  background:linear-gradient(135deg,var(--cyan),#7fe6ff);
  box-shadow:0 0 18px rgba(56,232,255,.35);
}
.nav-right{display:flex;align-items:center;gap:12px}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 26px;border-radius:999px;border:none;
  font-weight:700;font-size:15px;letter-spacing:.02em;
  color:#04101F;background:linear-gradient(135deg,var(--cyan),var(--violet));
  box-shadow:var(--sh-glow);transition:.26s ease;cursor:pointer;
}
.btn-glow:hover{color:#04101F;transform:translateY(-2px);filter:brightness(1.07);box-shadow:0 0 36px rgba(56,232,255,.55)}
.btn-glow:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 26px;border-radius:999px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  color:var(--text);font-weight:600;font-size:15px;
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  transition:.26s ease;cursor:pointer;
}
.btn-ghost:hover{color:#fff;border-color:var(--cyan);background:rgba(56,232,255,.1);transform:translateY(-2px)}
.btn-line{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:999px;
  border:1px solid var(--line);color:var(--cyan);
  font-size:14px;font-weight:600;transition:.24s ease;
}
.btn-line:hover{border-color:var(--cyan);background:rgba(56,232,255,.09);color:#9beeff}

.burger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--text);align-items:center;justify-content:center;cursor:pointer;
}
.offcanvas{background:rgba(8,16,34,.98);color:var(--text);border-left:1px solid var(--line)}
.offcanvas-header{border-bottom:1px solid var(--line);padding:20px 22px}
.offcanvas-body{padding:22px}
.m-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 16px;border-radius:14px;color:var(--text);
  font-size:16px;font-weight:600;margin-bottom:8px;
  border:1px solid transparent;transition:.22s ease;
}
.m-nav a:hover,.m-nav a.active{border-color:var(--line-strong);background:rgba(56,232,255,.08);color:#fff}
.m-nav a i{color:var(--cyan);font-size:13px}

/* ------- Hero ------- */
.hero{
  position:relative;padding:170px 0 110px;overflow:hidden;
  background-image:linear-gradient(105deg,rgba(5,10,24,.94) 0%,rgba(5,10,24,.82) 48%,rgba(10,20,40,.72) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(720px 420px at 78% 22%, rgba(124,92,255,.28), transparent 66%);
}
.hero .container-x{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
.hero h1{
  font-size:clamp(2.2rem,5vw,4.1rem);
  line-height:1.16;margin:22px 0 22px;letter-spacing:.02em;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--cyan),var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:18px;color:var(--text-dim);max-width:600px;margin-bottom:34px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-notes{display:flex;flex-wrap:wrap;gap:22px;font-size:14px;color:var(--text-dim)}
.hero-notes span{display:inline-flex;align-items:center;gap:8px}
.hero-notes i{color:var(--green)}

.hero-panel{
  border-radius:var(--r-lg);
  border:1px solid var(--line-strong);
  background:linear-gradient(160deg,rgba(20,38,72,.86),rgba(8,16,34,.9));
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:var(--sh-card);
  padding:28px;
}
.hero-panel h3{font-size:19px;margin-bottom:6px}
.hero-panel .panel-sub{font-size:14px;color:var(--text-dim);margin-bottom:22px}
.step-line{position:relative;padding-left:26px}
.step-line::before{content:"";position:absolute;left:7px;top:8px;bottom:14px;width:1px;background:linear-gradient(180deg,var(--cyan),rgba(124,92,255,.35),transparent)}
.step-line li{position:relative;padding-bottom:20px}
.step-line li:last-child{padding-bottom:0}
.step-line li::before{
  content:"";position:absolute;left:-26px;top:8px;width:15px;height:15px;border-radius:50%;
  background:var(--bg-deep);border:2px solid var(--cyan);box-shadow:0 0 12px rgba(56,232,255,.5);
}
.step-line li.is-done::before{border-color:var(--green);box-shadow:0 0 12px rgba(92,225,166,.5);background:var(--green)}
.step-line strong{display:block;font-size:15.5px;color:#fff;font-weight:600}
.step-line span{font-size:13.5px;color:var(--text-dim)}
.panel-foot{
  margin-top:24px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
}
.panel-foot .stat{font-family:var(--font-num);font-size:24px;font-weight:700;color:var(--cyan);line-height:1.2}
.panel-foot .stat small{display:block;font-size:12.5px;color:var(--text-dim);font-weight:400;font-family:var(--font);letter-spacing:.04em}

/* ------- 信任条 ------- */
.trustbar{border-bottom:1px solid var(--line);background:rgba(6,12,26,.6)}
.trust-scroll{
  display:flex;align-items:stretch;gap:0;
  overflow-x:auto;scrollbar-width:none;
}
.trust-scroll::-webkit-scrollbar{display:none}
.trust-item{
  flex:1 0 210px;padding:26px 28px;border-right:1px solid var(--line);
}
.trust-item:last-child{border-right:none}
.trust-item .num{font-family:var(--font-num);font-size:28px;font-weight:700;color:#fff;line-height:1.2}
.trust-item .num i{font-size:15px;color:var(--cyan);margin-left:6px}
.trust-item p{font-size:13.8px;color:var(--text-dim);margin:6px 0 0}

/* ------- 品牌故事 ------- */
.story{display:grid;grid-template-columns:.95fr 1.05fr;gap:60px;align-items:center}
.story-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-card);border:1px solid var(--line)}
.story-media img{width:100%;aspect-ratio:4/3.2;object-fit:cover}
.story-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(5,10,24,.7))}
.story-text h2{font-size:clamp(1.6rem,3.2vw,2.5rem);margin:20px 0 20px}
.story-text p{color:var(--text-dim);font-size:16.5px}
.datacards{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:32px}
.datacard{
  padding:22px 22px 20px;border-radius:var(--r-md);
  border:1px solid var(--line);background:var(--card-bg-solid);
  transition:.26s ease;
}
.datacard:hover{border-color:var(--line-strong);transform:translateY(-4px);background:#112040}
.datacard .num{font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--cyan);line-height:1.15}
.datacard h4{font-size:15.5px;margin:10px 0 6px}
.datacard p{font-size:13.8px;color:var(--text-dim);margin:0}

/* ------- Bento 精选 ------- */
.bento{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:minmax(0,auto);gap:24px}
.bento-card{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--card-bg-solid);
  padding:30px;display:flex;flex-direction:column;
  transition:.3s ease;
}
.bento-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 22px 48px rgba(0,0,0,.42)}
.bento-card.big{grid-column:span 2;grid-row:span 2;padding:0}
.bento-card.big .bento-media{position:relative;height:290px;overflow:hidden}
.bento-card.big .bento-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.bento-card.big:hover .bento-media img{transform:scale(1.05)}
.bento-card.big .bento-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,10,24,.1),rgba(5,10,24,.86))}
.bento-card.big .bento-body{padding:30px;margin-top:-70px;position:relative;z-index:2}
.bento-card.wide{grid-column:span 3;flex-direction:row;align-items:center;gap:32px;background:linear-gradient(120deg,rgba(124,92,255,.16),rgba(14,27,54,.7))}
.bento-card.wide .wide-icon{
  flex:none;width:66px;height:66px;border-radius:18px;display:grid;place-items:center;
  font-size:24px;color:#04101F;background:linear-gradient(135deg,var(--cyan),var(--green));
  box-shadow:var(--sh-glow);
}
.bento-card.accent{border-color:rgba(124,92,255,.4);background:linear-gradient(160deg,rgba(124,92,255,.18),rgba(14,27,54,.75))}
.bento-card h3{font-size:20px;margin:14px 0 10px}
.bento-card p{font-size:15px;color:var(--text-dim);margin:0 0 16px}
.tagline{
  display:inline-flex;align-items:center;gap:7px;align-self:flex-start;
  padding:5px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
  color:var(--cyan);background:rgba(56,232,255,.1);border:1px solid rgba(56,232,255,.24);
}
.tagline.violet{color:#c3b3ff;background:rgba(124,92,255,.14);border-color:rgba(124,92,255,.34)}
.tagline.green{color:var(--green);background:rgba(92,225,166,.11);border-color:rgba(92,225,166,.3)}
.card-link{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--cyan)}
.card-link i{transition:transform .26s ease}
.card-link:hover i{transform:translateX(5px)}

/* ------- 最新信息 ------- */
.latest{background:linear-gradient(180deg,rgba(10,20,40,.4),rgba(5,10,24,.1));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-lg);border:1px solid var(--line);
  background:var(--card-bg-solid);transition:.28s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 22px 46px rgba(0,0,0,.4)}
.news-thumb{display:block;height:172px;overflow:hidden;background:#0a1428}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-card:hover .news-thumb img{transform:scale(1.06)}
.news-body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1}
.news-body h3{font-size:17.5px;line-height:1.45;margin:12px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body h3 a{color:#fff}
.news-body h3 a:hover{color:var(--cyan)}
.news-body p{
  font-size:14.5px;color:var(--text-dim);margin:0 0 18px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-dim);
}
.news-meta i{margin-right:6px;color:var(--cyan)}
.empty-state{
  grid-column:1/-1;text-align:center;padding:64px 24px;border-radius:var(--r-lg);
  border:1px dashed var(--line-strong);background:rgba(14,27,54,.5);
}
.empty-state i{font-size:34px;color:var(--cyan);opacity:.7}
.empty-state h3{font-size:19px;margin:16px 0 8px}
.empty-state p{color:var(--text-dim);font-size:14.5px;margin:0}

/* ------- 信任背书 时间线 ------- */
.timeline{position:relative;padding-left:34px}
.timeline::before{content:"";position:absolute;left:9px;top:10px;bottom:10px;width:2px;background:linear-gradient(180deg,var(--cyan),rgba(124,92,255,.45),transparent)}
.tl-item{position:relative;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-34px;top:6px;width:20px;height:20px;border-radius:50%;
  background:var(--bg-deep);border:2px solid var(--cyan);box-shadow:0 0 14px rgba(56,232,255,.4);
}
.tl-item h4{font-size:18px;margin-bottom:8px}
.tl-item p{color:var(--text-dim);font-size:15px;margin:0}
.tl-tag{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.1em;
  color:var(--amber);border:1px solid rgba(255,180,84,.35);background:rgba(255,180,84,.1);
  padding:3px 11px;border-radius:999px;margin-bottom:10px;
}

/* ------- FAQ ------- */
.faq .accordion-item{
  background:rgba(14,27,54,.62);border:1px solid var(--line);
  border-radius:var(--r-md)!important;margin-bottom:14px;overflow:hidden;transition:.26s ease;
}
.faq .accordion-item:hover{border-color:var(--line-strong)}
.faq .accordion-button{
  background:transparent;color:#fff;font-size:16.5px;font-weight:600;
  padding:22px 26px;box-shadow:none;border-radius:var(--r-md)!important;
}
.faq .accordion-button:not(.collapsed){color:var(--cyan);background:rgba(56,232,255,.06)}
.faq .accordion-button::after{
  background-image:none;content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--cyan);width:auto;height:auto;transition:transform .3s ease;
}
.faq .accordion-button:not(.collapsed)::after{content:"\f068";transform:none}
.faq .accordion-button:focus{box-shadow:none;border-color:var(--line-strong)}
.faq .accordion-body{
  padding:0 26px 24px 26px;color:var(--text-dim);font-size:15.5px;line-height:1.85;
  border-left:2px solid var(--cyan);margin-left:26px;padding-left:22px;
}

/* ------- CTA / 订阅 ------- */
.cta-box{
  position:relative;overflow:hidden;border-radius:26px;
  border:1px solid var(--line-strong);
  background:linear-gradient(125deg,rgba(20,42,80,.92),rgba(8,14,32,.94));
  padding:56px;
  display:grid;grid-template-columns:1fr .85fr;gap:48px;align-items:center;
  box-shadow:var(--sh-card);
}
.cta-box::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 320px at 88% 10%, rgba(56,232,255,.2), transparent 66%),
             radial-gradient(420px 280px at 4% 96%, rgba(124,92,255,.22), transparent 66%);
}
.cta-box>*{position:relative;z-index:2}
.cta-box h2{font-size:clamp(1.5rem,3vw,2.2rem);margin:18px 0 16px}
.cta-box p{color:var(--text-dim);font-size:16px;margin:0 0 26px}
.form-card{background:rgba(5,10,24,.6);border:1px solid var(--line);border-radius:var(--r-md);padding:28px}
.form-card label{display:block;font-size:13.5px;font-weight:600;color:var(--text-dim);margin-bottom:8px;letter-spacing:.03em}
.form-card .form-control{
  width:100%;background:rgba(255,255,255,.04);border:1px solid var(--line);
  border-radius:12px;color:var(--text);padding:13px 16px;font-size:15px;
  transition:.24s ease;
}
.form-card .form-control::placeholder{color:rgba(168,183,212,.6)}
.form-card .form-control:focus{
  background:rgba(56,232,255,.06);border-color:var(--cyan);box-shadow:0 0 0 4px rgba(56,232,255,.14);outline:none;
}
.form-group{margin-bottom:18px}
.form-hint{font-size:12.8px;color:var(--text-dim);margin:14px 0 0}
.form-hint i{color:var(--green);margin-right:6px}

/* ------- 页脚 ------- */
.site-footer{
  position:relative;z-index:1;margin-top:0;
  background:linear-gradient(180deg,rgba(5,10,24,.4),#04070F 40%);
  border-top:1px solid var(--line);
  padding-top:72px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.35fr;gap:44px;padding-bottom:52px}
.footer-brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;font-size:20px;margin-bottom:18px}
.footer-brand:hover{color:#fff}
.site-footer p{color:var(--text-dim);font-size:14.5px}
.site-footer h5{font-size:15px;font-weight:700;color:#fff;margin:0 0 20px;letter-spacing:.06em}
.footer-links li{margin-bottom:12px}
.footer-links a{color:var(--text-dim);font-size:14.5px;transition:.22s ease}
.footer-links a:hover{color:var(--cyan);padding-left:4px}
.footer-sub .form-control{
  width:100%;background:rgba(255,255,255,.045);border:1px solid var(--line);
  border-radius:12px;color:var(--text);padding:12px 15px;font-size:14.5px;transition:.24s ease;
}
.footer-sub .form-control:focus{border-color:var(--cyan);box-shadow:0 0 0 4px rgba(56,232,255,.13);outline:none}
.footer-bottom{
  border-top:1px solid var(--line);padding:24px 0;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13.5px;color:var(--text-dim);
}
.footer-bottom .links a{color:var(--text-dim);margin-right:18px}
.footer-bottom .links a:hover{color:var(--cyan)}

.to-top{
  position:fixed;right:24px;bottom:28px;z-index:1030;
  width:48px;height:48px;border-radius:14px;border:1px solid var(--line-strong);
  background:rgba(10,20,40,.85);color:var(--cyan);
  display:grid;place-items:center;cursor:pointer;opacity:0;visibility:hidden;
  backdrop-filter:blur(10px);transition:.3s ease;
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{background:rgba(56,232,255,.16);transform:translateY(-3px)}

/* ------- 响应式 ------- */
@media (max-width:1199.98px){
  :root{--sec-y:84px}
  .hero-grid{gap:40px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px}
  .footer-sub{grid-column:1/-1}
}
@media (max-width:991.98px){
  :root{--sec-y:72px}
  .nav-pill,.nav-right .btn-glow{display:none}
  .burger{display:inline-flex}
  .hero{padding:140px 0 84px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero h1{font-size:clamp(2rem,6.4vw,3rem)}
  .story{grid-template-columns:1fr;gap:38px}
  .bento{grid-template-columns:repeat(2,1fr)}
  .bento-card.big{grid-column:span 2;grid-row:auto}
  .bento-card.wide{grid-column:span 2;flex-direction:column;align-items:flex-start;gap:20px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .cta-box{grid-template-columns:1fr;gap:34px;padding:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .footer-brand-col{grid-column:1/-1}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .container-x{padding:0 18px}
  .hero{padding:126px 0 70px}
  .hero-sub{font-size:16.5px}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn-glow,.hero-cta .btn-ghost{width:100%}
  .sec-head{margin-bottom:38px}
  .bento{grid-template-columns:1fr}
  .bento-card.big,.bento-card.wide{grid-column:span 1}
  .bento-card.big .bento-media{height:220px}
  .bento-card.big .bento-body{margin-top:-40px;padding:24px}
  .news-grid{grid-template-columns:1fr}
  .datacards{grid-template-columns:1fr}
  .cta-box{padding:30px 22px}
  .form-card{padding:22px}
  .trust-item{flex:0 0 200px;padding:22px 20px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .to-top{right:16px;bottom:18px;width:44px;height:44px}
}
@media (max-width:520px){
  .hero h1{font-size:1.86rem}
  .faq .accordion-button{font-size:15.5px;padding:18px 20px}
  .faq .accordion-body{margin-left:20px;padding-left:16px}
}

/* roulang page: article */
:root{
  --bg:#050A18;
  --bg-2:#0A1428;
  --bg-3:#0d1b34;
  --cyan:#38E8FF;
  --violet:#7C5CFF;
  --green:#5CE1A6;
  --amber:#FFB454;
  --text:#EAF2FF;
  --muted:#A8B7D4;
  --line:rgba(120,220,255,.16);
  --line-strong:rgba(120,220,255,.34);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-card:0 16px 40px rgba(0,0,0,.35);
  --sh-glow:0 0 24px rgba(56,232,255,.25);
  --sp-section:96px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 480px at 12% -6%,rgba(56,232,255,.13),transparent 62%),
    radial-gradient(760px 420px at 88% 4%,rgba(124,92,255,.14),transparent 60%),
    linear-gradient(180deg,#050A18 0%,#07101f 48%,#050A18 100%);
  pointer-events:none;
  z-index:-2;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(120,220,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(120,220,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse at 50% 0%,#000 12%,transparent 76%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 12%,transparent 76%);
  pointer-events:none;
  z-index:-1;
}

a{color:var(--cyan);text-decoration:none;transition:color .25s ease,opacity .25s ease}
a:hover{color:#8df3ff}
img{max-width:100%;display:block}
button{font-family:inherit}
h1,h2,h3,h4,h5{letter-spacing:.02em;line-height:1.3;margin:0}

.container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn-glow,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);
  padding:12px 26px;
  font-size:16px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .25s ease,box-shadow .25s ease,filter .25s ease,background .25s ease,border-color .25s ease;
  white-space:nowrap;
}
.btn-glow{
  background:linear-gradient(120deg,var(--cyan),#57b8ff 58%,var(--violet));
  color:#04101f;
  box-shadow:var(--sh-glow);
}
.btn-glow:hover{color:#04101f;transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 34px rgba(56,232,255,.45)}
.btn-ghost{
  background:rgba(255,255,255,.03);
  border-color:var(--line-strong);
  color:var(--text);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{color:#fff;border-color:var(--cyan);transform:translateY(-2px);background:rgba(56,232,255,.08)}
.btn-glow:focus-visible,.btn-ghost:focus-visible,
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:none;box-shadow:0 0 0 2px rgba(56,232,255,.9),0 0 0 5px rgba(56,232,255,.22);
}
.btn-sm-x{padding:9px 18px;font-size:14px}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(5,10,24,.84);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  height:74px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:19px}
.brand:hover{color:var(--text)}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  color:#04101f;font-weight:800;font-size:17px;
  box-shadow:var(--sh-glow);
}
.brand-text{letter-spacing:.04em}

.nav-pill{
  display:flex;align-items:center;gap:4px;
  padding:6px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.035);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
}
.nav-pill a{
  display:block;padding:8px 16px;border-radius:var(--r-pill);
  color:var(--muted);font-size:15px;font-weight:500;
  transition:color .22s ease,background .22s ease;
}
.nav-pill a:hover{color:var(--text);background:rgba(120,220,255,.09)}
.nav-pill a.active{
  color:#04101f;background:linear-gradient(120deg,var(--cyan),#66c9ff);
  box-shadow:0 0 18px rgba(56,232,255,.28);
}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text);font-size:18px;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}

.offcanvas.site-offcanvas{
  background:#071127;color:var(--text);border-left:1px solid var(--line);width:300px;
}
.site-offcanvas .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.site-offcanvas .btn-close{filter:invert(1) grayscale(1) brightness(2)}
.site-offcanvas .offcanvas-body{padding:18px 20px 28px}
.m-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:22px}
.m-nav a{
  padding:12px 14px;border-radius:12px;color:var(--muted);
  border:1px solid transparent;font-size:16px;
}
.m-nav a:hover,.m-nav a.active{
  color:var(--text);background:rgba(56,232,255,.08);border-color:var(--line);
}

.progress-bar-wrap{position:fixed;top:0;left:0;right:0;height:2px;z-index:1040;background:transparent}
.progress-bar-wrap span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--cyan),var(--violet));box-shadow:0 0 12px rgba(56,232,255,.6)}

main{padding-top:74px}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  padding:64px 0 48px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(5,10,24,.94),rgba(10,20,40,.86)),
             url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  z-index:-1;
}
.article-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(56,232,255,.5),transparent);
}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--muted);margin-bottom:20px;
}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--cyan)}
.crumbs .sep{opacity:.5}
.crumbs .now{color:var(--cyan)}

.badge-cat{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:var(--r-pill);
  background:rgba(56,232,255,.1);
  border:1px solid var(--line-strong);
  color:var(--cyan);font-size:13.5px;font-weight:600;letter-spacing:.04em;
  margin-bottom:20px;
}
.badge-cat::before{
  content:"";width:7px;height:7px;border-radius:50%;
  background:var(--green);box-shadow:0 0 10px var(--green);
}
.article-hero h1{
  font-size:clamp(1.75rem,3.4vw,2.85rem);
  font-weight:800;
  max-width:940px;
  margin-bottom:22px;
  background:linear-gradient(120deg,#ffffff 30%,#9fe9ff 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.post-meta{
  display:flex;flex-wrap:wrap;gap:10px 24px;
  font-size:14px;color:var(--muted);
}
.post-meta span{display:inline-flex;align-items:center;gap:8px}
.post-meta i{color:var(--cyan);font-size:13px}

/* ---------- 文章主体 ---------- */
.article-main{padding:56px 0 72px}
.article-card{
  background:linear-gradient(180deg,rgba(12,24,46,.92),rgba(8,16,33,.92));
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-card);
  padding:28px 30px 40px;
}
.article-cover{
  margin:0 0 30px;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--line);position:relative;
}
.article-cover img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover}
.article-cover figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:12px 18px;font-size:13px;color:#cfe6ff;
  background:linear-gradient(180deg,transparent,rgba(5,10,24,.88));
}

.article-body{max-width:800px;font-size:17px;color:#dae6fb}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.25em;line-height:1.85}
.article-body h2{
  font-size:clamp(1.3rem,2.2vw,1.65rem);
  margin:2.2em 0 .85em;font-weight:750;color:#fff;
  padding-left:16px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--cyan),var(--violet));
}
.article-body h3{
  font-size:1.16rem;margin:1.8em 0 .7em;font-weight:700;color:#e6f3ff;
}
.article-body ul,.article-body ol{margin:0 0 1.25em;padding-left:1.35em;line-height:1.85}
.article-body li{margin-bottom:.5em}
.article-body li::marker{color:var(--cyan)}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;
  background:rgba(56,232,255,.06);
  border-left:3px solid var(--cyan);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:#cbe3ff;font-style:normal;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15.5px;
  border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;
}
.article-body th,.article-body td{
  padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;
}
.article-body th{background:rgba(56,232,255,.08);color:#fff;font-weight:600}
.article-body tr:last-child td{border-bottom:none}
.article-body code{
  background:rgba(124,92,255,.16);color:#c8b8ff;
  padding:2px 7px;border-radius:6px;font-size:.92em;
}
.article-body pre{
  background:#060d1c;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:18px 20px;overflow:auto;margin:1.6em 0;
}
.article-body pre code{background:none;color:#9fe9ff;padding:0}
.article-body img{border-radius:var(--r-md);margin:1.6em 0;border:1px solid var(--line)}
.article-body hr{border:none;height:1px;background:var(--line);margin:2.4em 0}
.article-body figure{margin:1.8em 0}
.article-body figcaption{font-size:13.5px;color:var(--muted);text-align:center;margin-top:10px}
.article-body iframe{width:100%;aspect-ratio:16/9;border:1px solid var(--line);border-radius:var(--r-md);margin:1.6em 0}

.empty-state{
  border:1px dashed var(--line-strong);
  border-radius:var(--r-md);
  padding:56px 24px;text-align:center;
  background:rgba(255,255,255,.02);
}
.empty-state i{font-size:34px;color:var(--cyan);margin-bottom:14px;display:block}
.empty-state h3{font-size:1.2rem;margin-bottom:10px}
.empty-state p{color:var(--muted);margin-bottom:22px}

/* ---------- 侧栏 ---------- */
.side-sticky{position:sticky;top:100px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:rgba(10,20,40,.72);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:22px;
  backdrop-filter:blur(14px);
  box-shadow:var(--sh-card);
}
.side-card h4{
  font-size:15px;font-weight:700;letter-spacing:.06em;color:#fff;
  display:flex;align-items:center;gap:9px;margin-bottom:16px;
}
.side-card h4 i{color:var(--cyan);font-size:14px}
.toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.toc-list li a{
  display:block;padding:8px 12px;border-radius:10px;
  font-size:14.5px;color:var(--muted);border-left:2px solid transparent;
  transition:all .22s ease;
}
.toc-list li a:hover{color:var(--cyan);background:rgba(56,232,255,.07);border-left-color:var(--cyan)}
.toc-list li.toc-h3 a{padding-left:24px;font-size:13.5px}
.toc-empty{font-size:14px;color:var(--muted);padding:6px 0}

.mini-post{
  display:flex;gap:14px;align-items:flex-start;
  padding:12px;border-radius:var(--r-sm);
  border:1px solid transparent;
  transition:all .25s ease;
}
.mini-post:hover{background:rgba(56,232,255,.06);border-color:var(--line)}
.mini-post img{
  width:66px;height:50px;border-radius:8px;object-fit:cover;flex:0 0 auto;
  border:1px solid var(--line);
}
.mini-post strong{display:block;font-size:14.5px;font-weight:600;color:#e6f3ff;line-height:1.5;margin-bottom:4px}
.mini-post span{font-size:12.5px;color:var(--muted)}
.mini-post:hover strong{color:var(--cyan)}

.return-box{display:flex;flex-direction:column;gap:10px}
.return-box a{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 16px;border-radius:12px;
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  color:var(--text);font-size:14.5px;
  transition:all .25s ease;
}
.return-box a:hover{border-color:var(--cyan);color:var(--cyan);transform:translateX(3px)}
.return-box a i{color:var(--cyan)}

/* ---------- 继续阅读 ---------- */
.more-read{padding:20px 0 var(--sp-section);}
.section-head{margin-bottom:36px}
.section-head .eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.16em;color:var(--cyan);
  text-transform:uppercase;margin-bottom:12px;font-weight:600;
}
.section-head h2{font-size:clamp(1.5rem,3vw,2.2rem);font-weight:750;margin-bottom:12px}
.section-head p{color:var(--muted);margin:0;max-width:680px}

.read-card{
  display:flex;flex-direction:column;height:100%;
  background:linear-gradient(180deg,rgba(14,26,50,.9),rgba(8,16,33,.92));
  border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-card);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.read-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 22px 48px rgba(0,0,0,.42)}
.read-card .thumb{aspect-ratio:16/10;overflow:hidden;position:relative}
.read-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.read-card:hover .thumb img{transform:scale(1.05)}
.read-card .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(5,10,24,.82));
}
.read-card .body{padding:22px;display:flex;flex-direction:column;flex:1}
.tag{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;letter-spacing:.03em;
  background:rgba(124,92,255,.16);color:#c3b4ff;border:1px solid rgba(124,92,255,.3);
  margin-bottom:14px;width:fit-content;
}
.read-card h3{font-size:1.08rem;font-weight:700;line-height:1.5;margin-bottom:10px}
.read-card h3 a{color:#fff}
.read-card h3 a:hover{color:var(--cyan)}
.read-card p{font-size:14.5px;color:var(--muted);margin-bottom:18px;flex:1}
.read-card .foot{
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;
}
.read-card .foot .arrow{color:var(--cyan);transition:transform .25s ease}
.read-card:hover .foot .arrow{transform:translateX(4px)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  padding:72px 0;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(120deg,rgba(8,18,38,.96),rgba(5,10,24,.9)),
             url('/assets/images/backpic/back-3.png') center/cover no-repeat;
}
.cta-band::before{
  content:"";position:absolute;width:520px;height:520px;border-radius:50%;
  right:-140px;top:-200px;background:radial-gradient(circle,rgba(56,232,255,.2),transparent 68%);
}
.cta-inner{
  position:relative;z-index:1;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px;
}
.cta-inner h2{font-size:clamp(1.5rem,3vw,2.15rem);font-weight:750;margin-bottom:12px}
.cta-inner p{color:var(--muted);margin:0;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{
  background:rgba(4,8,18,.96);
  border-top:1px solid var(--line);
  padding:68px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:16px}
.footer-brand:hover{color:#fff}
.footer-brand-col p{color:var(--muted);font-size:14.5px;margin:0;max-width:340px}
.site-footer h5{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.04em}
.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.footer-links a{color:var(--muted);font-size:14.5px}
.footer-links a:hover{color:var(--cyan)}
.footer-sub p{color:var(--muted);font-size:14.5px}
.form-control{
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  border-radius:12px;color:var(--text);padding:11px 14px;font-size:14.5px;
}
.form-control::placeholder{color:#7c8dab}
.form-control:focus{
  background:rgba(255,255,255,.06);border-color:var(--cyan);color:#fff;
  box-shadow:0 0 0 3px rgba(56,232,255,.16);
}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  border-top:1px solid var(--line);padding:22px 0;font-size:13.5px;color:var(--muted);
}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:20px}
.footer-bottom .links a{color:var(--muted)}
.footer-bottom .links a:hover{color:var(--cyan)}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:34px}
  .footer-sub{grid-column:1 / -1}
}
@media (max-width:991.98px){
  main{padding-top:74px}
  .article-main{padding:44px 0 56px}
  .article-card{padding:22px 20px 30px}
  .side-sticky{position:static;margin-top:8px}
  :root{--sp-section:72px}
  .article-body{max-width:100%}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .container-x{padding:0 18px}
  .header-inner{height:66px}
  main{padding-top:66px}
  .article-hero{padding:44px 0 36px}
  .article-body{font-size:16px}
  .article-body table{display:block;overflow-x:auto}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn-glow,.cta-actions .btn-ghost{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  :root{--sp-section:56px}
}
@media (max-width:520px){
  .brand{font-size:17px}
  .brand-mark{width:30px;height:30px;font-size:15px}
  .article-card{padding:18px 16px 26px;border-radius:var(--r-md)}
  .post-meta{gap:8px 16px;font-size:13px}
  .read-card .body{padding:18px}
}

/* roulang page: category1 */
:root{
  --bg:#050A18;
  --bg-2:#0A1428;
  --bg-3:#0D1B34;
  --cyan:#38E8FF;
  --violet:#7C5CFF;
  --green:#5CE1A6;
  --amber:#FFB454;
  --text:#EAF2FF;
  --muted:#A8B7D4;
  --line:rgba(120,220,255,.16);
  --line-soft:rgba(120,220,255,.09);
  --card:rgba(13,27,52,.72);
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:20px;
  --shadow-card:0 16px 40px rgba(0,0,0,.35);
  --shadow-glow:0 0 24px rgba(56,232,255,.25);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(680px 420px at 12% -6%, rgba(56,232,255,.16), transparent 62%),
    radial-gradient(560px 400px at 88% 4%, rgba(124,92,255,.15), transparent 60%);
}
img{max-width:100%;display:block;}
a{color:var(--cyan);text-decoration:none;transition:color .25s ease,opacity .25s ease;}
a:hover{color:#8df2ff;}
h1,h2,h3,h4,h5{font-family:var(--font-cn);font-weight:700;letter-spacing:.02em;line-height:1.3;margin:0;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}

.container-x{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 22px;
  position:relative;
  z-index:1;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1040;
  padding:14px 0;
  background:linear-gradient(180deg,rgba(5,10,24,.72),rgba(5,10,24,0));
  transition:background .3s ease,padding .3s ease,border-color .3s ease,backdrop-filter .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-stuck{
  padding:10px 0;
  background:rgba(7,14,31,.88);
  border-bottom:1px solid var(--line-soft);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:18px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  font-weight:700;
  font-size:19px;
  letter-spacing:.02em;
  white-space:nowrap;
}
.brand:hover{color:var(--text);}
.brand-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  color:#04101f;
  font-weight:800;
  font-size:17px;
  box-shadow:0 0 18px rgba(56,232,255,.35);
}
.nav-pill{
  display:flex;
  align-items:center;
  gap:4px;
  margin:0 auto;
  padding:6px;
  border-radius:999px;
  background:rgba(11,22,44,.62);
  border:1px solid var(--line-soft);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.nav-pill a{
  display:inline-block;
  padding:8px 18px;
  border-radius:999px;
  font-size:15px;
  color:var(--muted);
  white-space:nowrap;
  transition:color .25s ease,background .25s ease;
}
.nav-pill a:hover{color:var(--text);background:rgba(56,232,255,.08);}
.nav-pill a.active{
  color:#04101f;
  background:linear-gradient(120deg,var(--cyan),#7ef0ff);
  font-weight:700;
  box-shadow:0 0 18px rgba(56,232,255,.3);
}
.header-cta{display:flex;align-items:center;gap:10px;}

.btn-glow{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 24px;
  border:none;
  border-radius:999px;
  background:linear-gradient(120deg,var(--cyan),#6fe9ff);
  color:#04101f;
  font-weight:700;
  font-size:15px;
  cursor:pointer;
  box-shadow:var(--shadow-glow);
  transition:transform .25s ease,box-shadow .25s ease,filter .25s ease;
}
.btn-glow:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 32px rgba(56,232,255,.42);color:#04101f;}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 22px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(56,232,255,.05);
  color:var(--text);
  font-weight:600;
  font-size:15px;
  transition:transform .25s ease,border-color .25s ease,background .25s ease;
}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--cyan);background:rgba(56,232,255,.12);color:var(--text);}
.nav-toggle{
  width:44px;height:44px;
  display:none;
  place-items:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(11,22,44,.7);
  color:var(--text);
  font-size:18px;
  cursor:pointer;
}
.offcanvas.offcanvas-end{
  background:var(--bg-2);
  color:var(--text);
  border-left:1px solid var(--line-soft);
  width:310px;
}
.offcanvas .btn-close{filter:invert(1) brightness(1.6);}
.oc-brand{margin-bottom:26px;}
.oc-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:26px;}
.oc-nav a{
  padding:12px 16px;
  border-radius:12px;
  color:var(--muted);
  border:1px solid transparent;
  font-size:16px;
}
.oc-nav a:hover{background:rgba(56,232,255,.08);color:var(--text);}
.oc-nav a.active{
  color:var(--cyan);
  border-color:var(--line);
  background:rgba(56,232,255,.09);
  font-weight:700;
}

/* ============ 通用 ============ */
main{position:relative;z-index:1;}
.section{padding:84px 0;}
.section-sm{padding:56px 0;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(56,232,255,.07);
  color:var(--cyan);
  font-size:13.5px;
  letter-spacing:.06em;
}
.sec-title{font-size:clamp(1.6rem,3.2vw,2.5rem);margin-bottom:14px;}
.sec-desc{color:var(--muted);max-width:760px;font-size:16.5px;}
.hairline{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);border:0;margin:0;}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
  font-size:14px;
  color:var(--muted);
  margin-bottom:22px;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--cyan);}
.crumb span.sep{opacity:.5;}
.crumb .cur{color:var(--cyan);}

/* ============ 分类页头图 ============ */
.page-hero{
  position:relative;
  padding:150px 0 78px;
  background-image:linear-gradient(180deg,rgba(5,10,24,.82),rgba(5,10,24,.94)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
  border-bottom:1px solid var(--line-soft);
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(56,232,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(56,232,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.6;
  pointer-events:none;
}
.page-hero .container-x{position:relative;z-index:2;}
.hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
}
.page-hero h1{
  font-size:clamp(2.2rem,4.4vw,3.4rem);
  margin:18px 0 16px;
}
.page-hero h1 em{
  font-style:normal;
  background:linear-gradient(100deg,var(--cyan),var(--violet));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{color:var(--muted);font-size:17.5px;max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.glass-panel{
  border-radius:var(--radius-l);
  border:1px solid var(--line);
  background:rgba(11,22,44,.6);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card);
  padding:26px;
}
.glass-panel h3{font-size:1.05rem;margin-bottom:16px;color:var(--text);}
.status-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 0;
  border-bottom:1px dashed var(--line-soft);
  font-size:15px;
}
.status-row:last-child{border-bottom:0;padding-bottom:0;}
.status-row .k{color:var(--muted);}
.status-row .v{color:var(--text);font-weight:600;}
.dot{width:8px;height:8px;border-radius:50%;display:inline-block;margin-right:8px;}
.dot.green{background:var(--green);box-shadow:0 0 10px rgba(92,225,166,.7);}
.dot.cyan{background:var(--cyan);box-shadow:0 0 10px rgba(56,232,255,.7);}
.dot.amber{background:var(--amber);box-shadow:0 0 10px rgba(255,180,84,.7);}

/* ============ 指标条 ============ */
.metrics{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
}
.metric{
  padding:22px;
  border-radius:var(--radius-m);
  border:1px solid var(--line-soft);
  background:rgba(10,20,40,.6);
  transition:border-color .25s ease,transform .25s ease,background .25s ease;
}
.metric:hover{border-color:var(--line);transform:translateY(-4px);background:rgba(13,27,52,.78);}
.metric .num{
  font-size:clamp(1.5rem,2.4vw,2rem);
  font-weight:800;
  color:var(--cyan);
  letter-spacing:.02em;
}
.metric .lbl{color:var(--muted);font-size:14.5px;margin-top:6px;}

/* ============ 步骤区 ============ */
.steps-layout{
  display:grid;
  grid-template-columns:270px 1fr;
  gap:38px;
  align-items:start;
}
.step-nav{
  position:sticky;
  top:104px;
  padding:22px;
  border-radius:var(--radius-l);
  border:1px solid var(--line-soft);
  background:rgba(10,20,40,.72);
  box-shadow:var(--shadow-card);
}
.step-nav h4{font-size:14px;color:var(--muted);letter-spacing:.08em;margin-bottom:16px;font-weight:600;}
.step-nav a{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:10px 12px;
  border-radius:12px;
  color:var(--muted);
  font-size:15px;
  border-left:2px solid transparent;
  transition:all .25s ease;
}
.step-nav a:hover{color:var(--text);background:rgba(56,232,255,.07);}
.step-nav a.on{color:var(--cyan);border-left-color:var(--cyan);background:rgba(56,232,255,.08);}
.step-nav .idx{
  display:inline-grid;place-items:center;
  min-width:24px;height:24px;
  border-radius:8px;
  background:rgba(56,232,255,.12);
  color:var(--cyan);
  font-size:12.5px;
  font-weight:700;
}
.timeline{position:relative;padding-left:34px;}
.timeline::before{
  content:"";
  position:absolute;
  left:9px;top:8px;bottom:8px;
  width:2px;
  background:linear-gradient(180deg,var(--cyan),rgba(124,92,255,.5),transparent);
}
.tl-item{position:relative;margin-bottom:24px;}
.tl-item::before{
  content:"";
  position:absolute;
  left:-33px;top:26px;
  width:14px;height:14px;
  border-radius:50%;
  background:var(--bg);
  border:2px solid var(--cyan);
  box-shadow:0 0 14px rgba(56,232,255,.5);
}
.tl-card{
  border-radius:var(--radius-l);
  border:1px solid var(--line-soft);
  background:linear-gradient(160deg,rgba(13,27,52,.85),rgba(9,18,36,.72));
  padding:26px 28px;
  box-shadow:var(--shadow-card);
  transition:border-color .25s ease,transform .25s ease;
}
.tl-card:hover{border-color:var(--line);transform:translateY(-4px);}
.tl-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:12px;}
.tl-head h3{font-size:1.28rem;}
.tag{
  display:inline-block;
  padding:3px 11px;
  border-radius:999px;
  font-size:12.5px;
  letter-spacing:.04em;
  border:1px solid var(--line);
  color:var(--cyan);
  background:rgba(56,232,255,.08);
}
.tag.safe{color:var(--green);border-color:rgba(92,225,166,.3);background:rgba(92,225,166,.08);}
.tag.warn{color:var(--amber);border-color:rgba(255,180,84,.3);background:rgba(255,180,84,.08);}
.tl-card p{color:var(--muted);margin-bottom:14px;}
.check-list{display:grid;gap:10px;}
.check-list li{
  display:flex;gap:10px;
  color:var(--muted);
  font-size:15.5px;
  line-height:1.7;
}
.check-list i{color:var(--cyan);margin-top:5px;font-size:13px;}
.note{
  margin-top:16px;
  padding:14px 18px;
  border-radius:var(--radius-s);
  border-left:3px solid var(--violet);
  background:rgba(124,92,255,.08);
  color:#cdd8f2;
  font-size:14.8px;
}

/* ============ 失败原因 / 描边卡 ============ */
.outline-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.o-card{
  padding:26px;
  border-radius:var(--radius-l);
  border:1px solid var(--line-soft);
  background:rgba(8,16,33,.55);
  transition:border-color .25s ease,transform .25s ease,background .25s ease;
}
.o-card:hover{border-color:var(--cyan);transform:translateY(-4px);background:rgba(13,27,52,.75);}
.o-icon{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(56,232,255,.09);
  color:var(--cyan);
  font-size:17px;
  margin-bottom:16px;
}
.o-card h3{font-size:1.12rem;margin-bottom:10px;}
.o-card p{color:var(--muted);font-size:15.3px;margin:0;}

/* ============ 图文区块 ============ */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:52px;
  align-items:center;
}
.split-img{
  border-radius:var(--radius-l);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  position:relative;
}
.split-img img{width:100%;height:380px;object-fit:cover;}
.split-img figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:14px 18px;
  font-size:13.5px;
  color:#d5e2f7;
  background:linear-gradient(180deg,transparent,rgba(5,10,24,.9));
}
.data-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px;}
.data-card{
  padding:20px;
  border-radius:var(--radius-m);
  border:1px solid var(--line-soft);
  background:linear-gradient(150deg,rgba(124,92,255,.14),rgba(10,20,40,.6));
}
.data-card strong{display:block;font-size:1.4rem;color:var(--text);}
.data-card span{color:var(--muted);font-size:14.3px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px;margin:0 auto;}
.accordion-item{
  background:rgba(10,20,40,.66)!important;
  border:1px solid var(--line-soft)!important;
  border-radius:var(--radius-m)!important;
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .25s ease,background .25s ease;
}
.accordion-item:hover{border-color:var(--line)!important;}
.accordion-button{
  background:transparent!important;
  color:var(--text)!important;
  font-weight:600;
  font-size:16.5px;
  padding:20px 22px;
  box-shadow:none!important;
  border-left:3px solid transparent;
  transition:border-color .25s ease,color .25s ease;
}
.accordion-button:not(.collapsed){
  color:var(--cyan)!important;
  border-left-color:var(--cyan);
  background:rgba(56,232,255,.06)!important;
}
.accordion-button::after{
  filter:invert(78%) sepia(60%) saturate(600%) hue-rotate(150deg);
}
.accordion-body{
  color:var(--muted);
  font-size:15.6px;
  padding:4px 22px 22px;
  border-left:3px solid rgba(56,232,255,.35);
}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  border-radius:26px;
  overflow:hidden;
  border:1px solid var(--line);
  background-image:linear-gradient(120deg,rgba(5,10,24,.9),rgba(10,20,40,.82)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  padding:56px 48px;
  box-shadow:var(--shadow-card);
}
.cta-band h2{font-size:clamp(1.6rem,3.2vw,2.4rem);margin-bottom:14px;}
.cta-band p{color:var(--muted);max-width:640px;margin-bottom:26px;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:20px;
  background:#04070F;
  border-top:1px solid var(--line);
  padding:64px 0 0;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr .9fr .9fr 1.2fr;
  gap:38px;
  padding-bottom:44px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  font-size:19px;
  color:var(--text);
  margin-bottom:16px;
}
.footer-brand:hover{color:var(--text);}
.footer-brand-col p{color:var(--muted);font-size:15px;max-width:340px;}
.site-footer h5{
  font-size:15px;
  margin-bottom:18px;
  color:var(--text);
  letter-spacing:.04em;
}
.footer-links{display:grid;gap:11px;}
.footer-links a{color:var(--muted);font-size:15px;}
.footer-links a:hover{color:var(--cyan);}
.footer-sub p{color:var(--muted);font-size:14.6px;}
.footer-sub .form-control{
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text);
  border-radius:12px;
  padding:11px 14px;
  font-size:15px;
}
.footer-sub .form-control::placeholder{color:#7b8bab;}
.footer-sub .form-control:focus{
  background:rgba(255,255,255,.06);
  border-color:var(--cyan);
  box-shadow:0 0 0 3px rgba(56,232,255,.16);
  color:var(--text);
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:20px 0 28px;
  border-top:1px solid var(--line-soft);
  color:var(--muted);
  font-size:14px;
}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom .links a{color:var(--muted);}
.footer-bottom .links a:hover{color:var(--cyan);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .steps-layout{grid-template-columns:230px 1fr;gap:28px;}
  .outline-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991.98px){
  .nav-pill{display:none;}
  .header-cta .btn-glow{display:none;}
  .nav-toggle{display:grid;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .page-hero{padding:132px 0 62px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .split-img img{height:300px;}
  .steps-layout{grid-template-columns:1fr;}
  .step-nav{position:static;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .section{padding:62px 0;}
  .cta-band{padding:44px 28px;}
}
@media (max-width:575.98px){
  body{font-size:16px;}
  .page-hero{padding:120px 0 52px;}
  .page-hero h1{font-size:1.95rem;}
  .hero-lead{font-size:16px;}
  .hero-actions .btn-glow,.hero-actions .btn-ghost{width:100%;}
  .metrics{grid-template-columns:1fr;}
  .outline-grid{grid-template-columns:1fr;}
  .data-cards{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .timeline{padding-left:26px;}
  .tl-item::before{left:-25px;}
  .tl-card{padding:22px 20px;}
  .section{padding:52px 0;}
  .section-sm{padding:40px 0;}
}

/* roulang page: category2 */
:root{
  --bg-0:#050A18;
  --bg-1:#0A1428;
  --bg-2:#0E1B36;
  --cyan:#38E8FF;
  --violet:#7C5CFF;
  --green:#5CE1A6;
  --amber:#FFB454;
  --text:#EAF2FF;
  --muted:#A8B7D4;
  --line:rgba(120,220,255,.16);
  --line-strong:rgba(120,220,255,.34);
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:20px;
  --radius-pill:999px;
  --shadow-card:0 16px 40px rgba(0,0,0,.35);
  --shadow-glow:0 0 24px rgba(56,232,255,.25);
  --container:1240px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,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-0);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(920px 540px at 10% -10%, rgba(56,232,255,.16), transparent 62%),
    radial-gradient(780px 480px at 90% 2%, rgba(124,92,255,.18), transparent 66%),
    linear-gradient(180deg,#050A18 0%,#071021 46%,#050A18 100%);
}
body::after{
  content:"";
  position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.55;
  background-image:
    linear-gradient(rgba(120,220,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,220,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(1200px 800px at 50% 10%, #000 20%, transparent 78%);
}
img{max-width:100%;display:block}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:#7ff3ff}
h1,h2,h3,h4,h5{letter-spacing:.02em;font-weight:700;margin:0;line-height:1.32}
p{margin:0 0 1.05em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

.container-x{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:2;
}
.page{position:relative;z-index:2}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  transition:background .3s ease, border-color .3s ease, backdrop-filter .3s ease, box-shadow .3s ease;
  border-bottom:1px solid transparent;
  background:linear-gradient(180deg,rgba(5,10,24,.72),rgba(5,10,24,0));
}
.site-header.is-scrolled{
  background:rgba(6,12,26,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
  box-shadow:0 10px 32px rgba(0,0,0,.34);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:74px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--text);font-weight:700;font-size:1.12rem;letter-spacing:.03em;
  flex:0 0 auto;
}
.brand:hover{color:var(--text)}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:800;font-size:1rem;color:#04121F;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  box-shadow:0 0 18px rgba(56,232,255,.42);
}
.nav-pill{
  display:flex;align-items:center;gap:4px;
  margin:0 auto;
  padding:6px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(10,20,40,.62);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.nav-pill a{
  display:inline-block;
  padding:9px 16px;
  border-radius:var(--radius-pill);
  font-size:.94rem;color:var(--muted);white-space:nowrap;
  transition:color .2s ease,background .2s ease,box-shadow .2s ease;
}
.nav-pill a:hover{color:var(--text);background:rgba(56,232,255,.1)}
.nav-pill a.active{
  color:#04121F;
  background:linear-gradient(135deg,var(--cyan),#5fd8ff);
  box-shadow:0 0 18px rgba(56,232,255,.36);
  font-weight:600;
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.menu-toggle{
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);
  background:rgba(10,20,40,.7);
  color:var(--text);font-size:1.05rem;
  display:inline-flex;align-items:center;justify-content:center;
  transition:border-color .2s ease,color .2s ease;
}
.menu-toggle:hover{border-color:var(--line-strong);color:var(--cyan)}

/* ---------- Buttons ---------- */
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 26px;border:0;border-radius:var(--radius-pill);
  font-size:.97rem;font-weight:600;color:#04121F;cursor:pointer;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  box-shadow:var(--shadow-glow);
  transition:transform .25s ease,box-shadow .25s ease,filter .25s ease;
}
.btn-glow:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 34px rgba(56,232,255,.45);color:#04121F}
.btn-glow:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 26px;border-radius:var(--radius-pill);
  font-size:.97rem;font-weight:600;color:var(--text);cursor:pointer;
  border:1px solid var(--line-strong);
  background:rgba(56,232,255,.06);
  transition:transform .25s ease,border-color .25s ease,background .25s ease,color .25s ease;
}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--cyan);background:rgba(56,232,255,.14);color:var(--text)}
.btn-sm-x{padding:10px 20px;font-size:.9rem}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:150px 0 76px;
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;z-index:1;
  background-image:
    linear-gradient(100deg,rgba(5,10,24,.95) 0%,rgba(5,10,24,.78) 46%,rgba(7,16,34,.62) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  opacity:.9;
}
.hero-bg::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,10,24,.2) 0%,rgba(5,10,24,.86) 72%,var(--bg-0) 100%);
}
.hero .container-x{position:relative;z-index:3}
.breadcrumb-x{
  display:flex;align-items:center;gap:9px;
  font-size:.85rem;color:var(--muted);margin-bottom:20px;
}
.breadcrumb-x a{color:var(--muted)}
.breadcrumb-x a:hover{color:var(--cyan)}
.breadcrumb-x .sep{opacity:.5}
.breadcrumb-x .current{color:var(--cyan);font-weight:600}
.badge-x{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--radius-pill);
  font-size:.83rem;font-weight:600;letter-spacing:.05em;
  color:var(--cyan);
  border:1px solid rgba(56,232,255,.32);
  background:rgba(56,232,255,.08);
  margin-bottom:22px;
}
.badge-x .dot{
  width:7px;height:7px;border-radius:50%;background:var(--green);
  box-shadow:0 0 10px rgba(92,225,166,.9);
}
.hero h1{
  font-size:clamp(2.1rem,4.4vw,3.7rem);
  line-height:1.2;
  margin-bottom:22px;
}
.hero h1 .hl{
  background:linear-gradient(120deg,var(--cyan),var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{
  font-size:1.06rem;color:var(--muted);max-width:640px;
  margin-bottom:30px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}

.status-panel{
  border-radius:var(--radius-l);
  border:1px solid var(--line-strong);
  background:linear-gradient(160deg,rgba(14,27,54,.86),rgba(10,20,40,.6));
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.status-panel .panel-head{
  padding:20px 24px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.status-panel .panel-head h3{font-size:1.02rem}
.status-panel .panel-head span{font-size:.8rem;color:var(--muted)}
.status-rows{padding:8px 24px 20px}
.status-row{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:15px 0;border-bottom:1px dashed rgba(120,220,255,.14);
}
.status-row:last-child{border-bottom:0}
.status-row .label{font-size:.92rem;color:var(--muted);display:flex;align-items:center;gap:10px}
.status-row .label i{color:var(--cyan);width:18px;text-align:center}
.tag-ok,.tag-warn,.tag-info{
  font-size:.78rem;font-weight:600;padding:4px 12px;border-radius:var(--radius-pill);
  white-space:nowrap;
}
.tag-ok{color:var(--green);background:rgba(92,225,166,.12);border:1px solid rgba(92,225,166,.32)}
.tag-warn{color:var(--amber);background:rgba(255,180,84,.12);border:1px solid rgba(255,180,84,.32)}
.tag-info{color:var(--cyan);background:rgba(56,232,255,.1);border:1px solid rgba(56,232,255,.3)}
.panel-media{position:relative;height:170px;overflow:hidden}
.panel-media img{width:100%;height:100%;object-fit:cover;opacity:.62}
.panel-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,20,40,.2),rgba(5,10,24,.95));
}
.panel-media .media-text{
  position:absolute;left:24px;right:24px;bottom:18px;z-index:2;
  font-size:.9rem;color:var(--muted);
}
.panel-media .media-text strong{color:var(--text);display:block;margin-bottom:4px;font-size:.98rem}

/* ---------- Stats strip ---------- */
.stats-strip{
  position:relative;z-index:3;
  margin-top:-8px;
  padding:0 0 8px;
}
.stats-inner{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  border-radius:var(--radius-l);
  border:1px solid var(--line);
  background:var(--line);
  overflow:hidden;
}
.stat-item{
  background:rgba(10,20,40,.82);
  padding:26px 24px;
  transition:background .25s ease;
}
.stat-item:hover{background:rgba(14,30,58,.92)}
.stat-item .num{
  font-size:1.85rem;font-weight:800;letter-spacing:.01em;
  background:linear-gradient(120deg,var(--cyan),var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  line-height:1.2;
}
.stat-item .txt{font-size:.9rem;color:var(--muted);margin-top:6px}

/* ---------- Sections ---------- */
.section{padding:88px 0;position:relative}
.section-tight{padding:64px 0}
.section-head{max-width:720px;margin:0 auto 46px;text-align:center}
.section-head.left{margin-left:0;text-align:left}
.section-head h2{
  font-size:clamp(1.6rem,3.1vw,2.5rem);
  margin-bottom:14px;
}
.section-head p{color:var(--muted);font-size:1rem}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.82rem;font-weight:600;letter-spacing:.14em;
  color:var(--cyan);text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";width:22px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),transparent);
}

/* ---------- Cards ---------- */
.glass-card{
  height:100%;
  padding:28px 26px;
  border-radius:var(--radius-l);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(14,27,54,.78),rgba(9,18,36,.62));
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.glass-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 22px 52px rgba(0,0,0,.45)}
.solid-card{
  height:100%;
  padding:28px 26px;
  border-radius:var(--radius-l);
  background:var(--bg-1);
  border:1px solid rgba(120,220,255,.1);
  transition:transform .3s ease,border-color .3s ease,background .3s ease;
}
.solid-card:hover{transform:translateY(-4px);border-color:var(--line-strong);background:#122043}
.outline-card{
  height:100%;
  padding:26px 24px;
  border-radius:var(--radius-l);
  border:1px solid var(--line);
  background:rgba(8,16,32,.5);
  transition:border-color .3s ease,transform .3s ease,background .3s ease;
}
.outline-card:hover{border-color:var(--line-strong);transform:translateY(-4px);background:rgba(12,24,48,.7)}
.card-icon{
  width:48px;height:48px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:1.15rem;color:var(--cyan);
  border:1px solid rgba(56,232,255,.28);
  background:rgba(56,232,255,.09);
  margin-bottom:18px;
}
.card-icon.violet{color:#b7a6ff;border-color:rgba(124,92,255,.34);background:rgba(124,92,255,.12)}
.card-icon.green{color:var(--green);border-color:rgba(92,225,166,.32);background:rgba(92,225,166,.1)}
.card-icon.amber{color:var(--amber);border-color:rgba(255,180,84,.32);background:rgba(255,180,84,.1)}
.glass-card h3,.solid-card h3,.outline-card h3{font-size:1.14rem;margin-bottom:10px}
.glass-card p,.solid-card p,.outline-card p{color:var(--muted);font-size:.94rem;margin-bottom:14px}
.mini-list li{
  display:flex;gap:9px;align-items:flex-start;
  font-size:.9rem;color:var(--muted);padding:5px 0;
}
.mini-list li i{color:var(--cyan);font-size:.72rem;margin-top:7px}
.gradient-card{
  height:100%;padding:28px 26px;border-radius:var(--radius-l);
  background:linear-gradient(150deg,rgba(56,232,255,.12),rgba(124,92,255,.14));
  border:1px solid rgba(56,232,255,.24);
  transition:transform .3s ease,box-shadow .3s ease;
}
.gradient-card:hover{transform:translateY(-4px);box-shadow:0 20px 48px rgba(0,0,0,.42)}

/* ---------- Flow ---------- */
.flow{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:18px;
  position:relative;
}
.flow-item{
  position:relative;
  padding:26px 20px;
  border-radius:var(--radius-m);
  border:1px solid var(--line);
  background:rgba(10,20,40,.72);
  transition:border-color .3s ease,transform .3s ease,background .3s ease;
}
.flow-item:hover{border-color:var(--line-strong);transform:translateY(-4px);background:rgba(14,28,56,.86)}
.flow-item .step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;
  font-weight:800;font-size:.9rem;color:#04121F;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  margin-bottom:14px;
}
.flow-item h3{font-size:1rem;margin-bottom:8px}
.flow-item p{font-size:.88rem;color:var(--muted);margin:0}
.flow-item::after{
  content:"";
  position:absolute;top:42px;right:-13px;
  width:8px;height:8px;border-top:2px solid rgba(56,232,255,.5);border-right:2px solid rgba(56,232,255,.5);
  transform:rotate(45deg);
}
.flow-item:last-child::after{display:none}

/* ---------- Risk bar ---------- */
.risk-bar{
  display:flex;gap:18px;align-items:flex-start;
  padding:24px 26px;
  border-radius:var(--radius-l);
  border:1px solid rgba(255,180,84,.34);
  background:linear-gradient(120deg,rgba(255,180,84,.12),rgba(10,20,40,.6));
}
.risk-bar .risk-icon{
  flex:0 0 auto;width:44px;height:44px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--amber);background:rgba(255,180,84,.14);
  border:1px solid rgba(255,180,84,.3);font-size:1.05rem;
}
.risk-bar h3{font-size:1.06rem;margin-bottom:8px;color:#FFD7A0}
.risk-bar p{color:var(--muted);font-size:.94rem;margin:0}

.check-list{
  display:grid;grid-template-columns:repeat(2,1fr);gap:12px 26px;margin-top:8px;
}
.check-list li{
  display:flex;gap:11px;align-items:flex-start;
  font-size:.94rem;color:var(--muted);
  padding:12px 16px;border-radius:var(--radius-s);
  border:1px solid rgba(120,220,255,.12);
  background:rgba(8,16,32,.5);
}
.check-list li i{color:var(--green);margin-top:5px;font-size:.8rem}

/* ---------- Split media ---------- */
.split-media{
  display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;
}
.media-frame{
  border-radius:var(--radius-l);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  position:relative;
}
.media-frame img{width:100%;height:380px;object-fit:cover}
.media-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(56,232,255,.1),rgba(5,10,24,.45));
}
.scene-list{margin-top:22px}
.scene-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px 0;border-bottom:1px dashed rgba(120,220,255,.14);
}
.scene-list li:last-child{border-bottom:0}
.scene-list .si{
  flex:0 0 auto;width:38px;height:38px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--cyan);background:rgba(56,232,255,.09);
  border:1px solid rgba(56,232,255,.24);font-size:.92rem;
}
.scene-list strong{display:block;font-size:.98rem;margin-bottom:4px}
.scene-list span{font-size:.9rem;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{
  background:rgba(10,20,40,.72);
  border:1px solid var(--line);
  border-radius:var(--radius-m) !important;
  margin-bottom:14px;
  overflow:hidden;
}
.faq-accordion .accordion-button{
  background:transparent;
  color:var(--text);
  font-weight:600;
  font-size:1rem;
  padding:20px 22px;
  box-shadow:none;
  border:0;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--cyan);
  background:rgba(56,232,255,.07);
  box-shadow:inset 3px 0 0 var(--cyan);
}
.faq-accordion .accordion-button:focus{box-shadow:0 0 0 2px rgba(56,232,255,.45);z-index:3}
.faq-accordion .accordion-button::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2338E8FF'%3E%3Cpath d='M8 4a.5.5 0 0 1 .5.5v3h3a.5.5 0 0 1 0 1h-3v3a.5.5 0 0 1-1 0v-3h-3a.5.5 0 0 1 0-1h3v-3A.5.5 0 0 1 8 4z'/%3E%3C/svg%3E");
  width:1.05rem;height:1.05rem;background-size:1.05rem;
}
.faq-accordion .accordion-body{
  color:var(--muted);
  font-size:.95rem;
  padding:2px 22px 22px;
  line-height:1.8;
}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:26px;
  border:1px solid var(--line-strong);
  background:
    radial-gradient(700px 320px at 82% 0%, rgba(124,92,255,.26), transparent 66%),
    linear-gradient(150deg,rgba(14,27,54,.94),rgba(8,16,32,.88));
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card);
  padding:52px 48px;
}
.cta-panel h2{font-size:clamp(1.55rem,3vw,2.3rem);margin-bottom:16px}
.cta-panel p{color:var(--muted);max-width:640px}
.cta-form{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;max-width:520px}
.form-control-x{
  flex:1 1 240px;min-width:0;
  padding:13px 18px;border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(5,10,24,.72);
  color:var(--text);font-size:.95rem;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-control-x::placeholder{color:rgba(168,183,212,.7)}
.form-control-x:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(56,232,255,.18)}
.form-note{font-size:.82rem;color:var(--muted);margin-top:14px}

/* ---------- Footer ---------- */
.site-footer{
  position:relative;z-index:2;
  margin-top:24px;
  padding:66px 0 26px;
  background:linear-gradient(180deg,rgba(6,12,26,.86),rgba(4,8,18,.98));
  border-top:1px solid var(--line);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.35fr;
  gap:40px;
}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--text);font-weight:700;font-size:1.1rem;
  margin-bottom:16px;
}
.footer-brand:hover{color:var(--text)}
.footer-brand-col p{color:var(--muted);font-size:.92rem;max-width:340px}
.site-footer h5{
  font-size:.95rem;color:var(--text);margin-bottom:18px;letter-spacing:.06em;
}
.footer-links li{margin-bottom:11px}
.footer-links a{color:var(--muted);font-size:.92rem}
.footer-links a:hover{color:var(--cyan)}
.footer-sub p{font-size:.9rem;color:var(--muted)}
.footer-sub .form-control{
  background:rgba(5,10,24,.72);
  border:1px solid var(--line);
  color:var(--text);
  border-radius:var(--radius-s);
  padding:12px 14px;
  font-size:.92rem;
}
.footer-sub .form-control::placeholder{color:rgba(168,183,212,.65)}
.footer-sub .form-control:focus{
  background:rgba(5,10,24,.9);
  border-color:var(--cyan);
  box-shadow:0 0 0 3px rgba(56,232,255,.18);
  color:var(--text);
}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  flex-wrap:wrap;
  font-size:.86rem;color:var(--muted);
}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom .links a{color:var(--muted)}
.footer-bottom .links a:hover{color:var(--cyan)}

/* ---------- Offcanvas ---------- */
.offcanvas.offcanvas-x{
  background:linear-gradient(180deg,#081227,#050A18);
  color:var(--text);
  border-left:1px solid var(--line);
  width:320px;
}
.offcanvas-x .offcanvas-header{border-bottom:1px solid var(--line);padding:20px 22px}
.offcanvas-x .offcanvas-body{padding:22px}
.offcanvas-x .oc-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;border-radius:var(--radius-s);
  color:var(--muted);font-size:1rem;
  border:1px solid transparent;
  margin-bottom:8px;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.offcanvas-x .oc-link:hover{background:rgba(56,232,255,.08);color:var(--text)}
.offcanvas-x .oc-link.active{
  color:var(--cyan);border-color:rgba(56,232,255,.3);background:rgba(56,232,255,.09);
}
.offcanvas-x .btn-close{filter:invert(1) grayscale(1) brightness(1.6)}

.to-top{
  margin-top:18px;
  display:flex;justify-content:center;
}
.to-top a{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.84rem;color:var(--muted);
  padding:8px 18px;border-radius:var(--radius-pill);
  border:1px solid var(--line);
  transition:color .2s ease,border-color .2s ease,transform .2s ease;
}
.to-top a:hover{color:var(--cyan);border-color:var(--line-strong);transform:translateY(-2px)}

/* ---------- Responsive ---------- */
@media (max-width:1199.98px){
  .nav-pill a{padding:9px 12px;font-size:.9rem}
}
@media (max-width:991.98px){
  .hero{padding:128px 0 60px}
  .section{padding:68px 0}
  .flow{grid-template-columns:repeat(2,1fr)}
  .flow-item::after{display:none}
  .split-media{grid-template-columns:1fr;gap:30px}
  .media-frame img{height:300px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .cta-panel{padding:40px 28px}
  .stats-inner{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .container-x{padding:0 18px}
  .header-inner{height:66px}
  .hero{padding:116px 0 52px}
  .hero-cta{gap:10px}
  .hero-cta .btn-glow,.hero-cta .btn-ghost{width:100%}
  .check-list{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-form .btn-glow{width:100%}
}
@media (max-width:519.98px){
  .glass-card,.solid-card,.outline-card,.gradient-card{padding:22px 20px;border-radius:var(--radius-m)}
  .stats-inner{grid-template-columns:1fr}
  .stat-item{padding:20px}
  .status-panel{border-radius:var(--radius-m)}
  .cta-panel{padding:32px 20px;border-radius:var(--radius-m)}
  .hero h1{font-size:1.95rem}
}

/* roulang page: category3 */
:root{
  --bg:#050A18;
  --bg-2:#0A1428;
  --bg-3:#0F1D36;
  --cyan:#38E8FF;
  --violet:#7C5CFF;
  --green:#5CE1A6;
  --amber:#FFB454;
  --text:#EAF2FF;
  --muted:#A8B7D4;
  --line:rgba(120,220,255,.16);
  --line-strong:rgba(120,220,255,.36);
  --card:rgba(10,20,40,.72);
  --radius-xl:24px;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-card:0 16px 40px rgba(0,0,0,.35);
  --shadow-glow:0 0 24px rgba(56,232,255,.25);
  --section-y:96px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
}

/* ============ 基础 reset ============ */
*,*::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);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(720px 460px at 10% -8%, rgba(56,232,255,.16), transparent 66%),
    radial-gradient(640px 420px at 92% 2%, rgba(124,92,255,.15), transparent 62%),
    linear-gradient(180deg,#050A18 0%,#060C1C 42%,#050A18 100%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background-image:
    linear-gradient(rgba(120,220,255,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,220,255,.055) 1px,transparent 1px);
  background-size:68px 68px;
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 74%);
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 74%);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--cyan);text-decoration:none;transition:color .25s ease,opacity .25s ease}
a:hover{color:#7BF0FF}
h1,h2,h3,h4,h5{margin:0 0 .6em;font-weight:700;letter-spacing:.02em;line-height:1.28}
p{margin:0 0 1.05em;color:var(--muted)}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

/* ============ 容器 ============ */
.container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 22px;position:relative;z-index:2}
.section{padding:var(--section-y) 0;position:relative;z-index:1}
.section-tight{padding:64px 0}
.section-dark{background:linear-gradient(180deg,rgba(6,12,26,.4),rgba(10,20,40,.85),rgba(6,12,26,.4))}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  transition:background .35s ease,box-shadow .35s ease,border-color .35s ease,backdrop-filter .35s ease;
  border-bottom:1px solid transparent;
  padding:14px 0;
}
.site-header.is-scrolled{
  background:rgba(6,12,26,.78);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
  box-shadow:0 12px 34px rgba(0,0,0,.4);
  padding:10px 0;
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--text);font-weight:700;font-size:19px;letter-spacing:.02em}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  color:#04121F;font-weight:800;font-size:20px;
  box-shadow:0 0 20px rgba(56,232,255,.35);
}
.brand-name{white-space:nowrap}
.nav-pill{
  display:flex;align-items:center;gap:4px;
  padding:6px;border-radius:999px;
  border:1px solid var(--line);
  background:rgba(10,20,40,.55);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
}
.nav-pill a{
  padding:9px 18px;border-radius:999px;font-size:15px;color:var(--muted);
  transition:all .25s ease;white-space:nowrap;
}
.nav-pill a:hover{color:var(--text);background:rgba(56,232,255,.09)}
.nav-pill a.active{
  color:#04121F;font-weight:600;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  box-shadow:0 0 22px rgba(56,232,255,.35);
}
.header-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(10,20,40,.6);color:var(--text);display:grid;place-items:center;
  transition:all .25s ease;
}
.nav-toggle:hover{border-color:var(--line-strong);background:rgba(56,232,255,.1)}

/* 移动抽屉 */
.nav-drawer{
  background:linear-gradient(180deg,#081226,#050A18);
  color:var(--text);border-left:1px solid var(--line);width:310px;
}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 22px}
.nav-drawer .offcanvas-body{padding:22px}
.nav-drawer .drawer-link{
  display:block;padding:13px 16px;border-radius:12px;color:var(--muted);
  border:1px solid transparent;margin-bottom:8px;transition:all .25s ease;
}
.nav-drawer .drawer-link:hover{color:var(--text);background:rgba(56,232,255,.08);border-color:var(--line)}
.nav-drawer .drawer-link.active{
  color:#04121F;font-weight:600;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  box-shadow:0 0 20px rgba(56,232,255,.3);
}
.nav-drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.6)}

/* ============ 按钮 ============ */
.btn-glow,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:999px;font-size:15.5px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .28s ease;text-align:center;
}
.btn-glow{
  background:linear-gradient(135deg,var(--cyan),#59C6FF 45%,var(--violet));
  color:#04121F;box-shadow:var(--shadow-glow);
}
.btn-glow:hover{color:#04121F;transform:translateY(-2px);box-shadow:0 0 34px rgba(56,232,255,.45);filter:brightness(1.06)}
.btn-glow:active{transform:translateY(0)}
.btn-ghost{
  background:rgba(56,232,255,.05);border-color:var(--line-strong);color:var(--text);
}
.btn-ghost:hover{color:var(--text);border-color:var(--cyan);background:rgba(56,232,255,.13);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14.5px}
.btn-block{width:100%}

/* ============ 徽章 / 标签 ============ */
.badge-soft{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;font-size:13px;letter-spacing:.04em;
  border:1px solid var(--line);background:rgba(56,232,255,.07);color:#9EE9FF;
}
.badge-soft.green{border-color:rgba(92,225,166,.3);background:rgba(92,225,166,.09);color:var(--green)}
.badge-soft.violet{border-color:rgba(124,92,255,.34);background:rgba(124,92,255,.12);color:#C3B4FF}
.badge-soft.amber{border-color:rgba(255,180,84,.32);background:rgba(255,180,84,.1);color:var(--amber)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 10px var(--green);display:inline-block}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-block;padding:7px 15px;border-radius:999px;font-size:13.5px;
  border:1px solid var(--line);color:var(--muted);background:rgba(10,20,40,.5);
  transition:all .25s ease;
}
.tag:hover{color:var(--text);border-color:var(--cyan);background:rgba(56,232,255,.12);transform:translateY(-2px)}

/* ============ 面包屑 ============ */
.breadcrumb-bar{
  padding:118px 0 0;position:relative;z-index:2;
}
.breadcrumb-x{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted)}
.breadcrumb-x a{color:var(--muted)}
.breadcrumb-x a:hover{color:var(--cyan)}
.breadcrumb-x .sep{color:rgba(168,183,212,.45)}
.breadcrumb-x .current{color:var(--cyan)}

/* ============ Hero ============ */
.help-hero{padding:34px 0 76px;position:relative;z-index:1}
.help-hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background-image:linear-gradient(100deg,rgba(5,10,24,.94) 0%,rgba(5,10,24,.86) 42%,rgba(5,10,24,.62) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center right;
  border-bottom:1px solid var(--line);
  -webkit-mask-image:linear-gradient(180deg,#000 62%,transparent 100%);
  mask-image:linear-gradient(180deg,#000 62%,transparent 100%);
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center;padding-top:22px}
.hero-title{
  font-size:clamp(2rem,4.2vw,3.25rem);
  line-height:1.22;margin-bottom:20px;letter-spacing:.02em;
}
.hero-title .hl{
  background:linear-gradient(120deg,var(--cyan),var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;color:var(--muted);max-width:620px;margin-bottom:26px}
.search-box{
  display:flex;gap:10px;padding:8px;border-radius:999px;
  border:1px solid var(--line);background:rgba(8,16,34,.72);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  max-width:640px;box-shadow:var(--shadow-card);
}
.search-box .form-control{
  background:transparent;border:0;color:var(--text);padding:10px 18px;box-shadow:none;
}
.search-box .form-control::placeholder{color:rgba(168,183,212,.7)}
.search-box .form-control:focus{background:transparent;color:var(--text);box-shadow:none}
.hot-search{display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin-top:18px;font-size:13.5px;color:var(--muted)}
.hero-panel{
  border:1px solid var(--line);border-radius:var(--radius-xl);
  background:linear-gradient(160deg,rgba(14,28,54,.85),rgba(7,14,30,.7));
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  box-shadow:var(--shadow-card);overflow:hidden;
}
.hero-panel-img{height:172px;position:relative;overflow:hidden}
.hero-panel-img img{width:100%;height:100%;object-fit:cover}
.hero-panel-img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,10,24,.15),rgba(7,14,30,.95))}
.hero-panel-body{padding:22px 24px 26px}
.hero-panel-body h3{font-size:18px;margin-bottom:14px}
.status-row{display:flex;align-items:center;justify-content:space-between;padding:11px 0;border-bottom:1px dashed rgba(120,220,255,.14);font-size:14.5px}
.status-row:last-child{border-bottom:0}
.status-row span:first-child{color:var(--muted)}
.status-row span:last-child{color:var(--text);font-weight:600}

/* ============ 区块标题 ============ */
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-title{font-size:clamp(1.55rem,3vw,2.4rem);margin-bottom:14px}
.sec-desc{font-size:16px;color:var(--muted);margin-bottom:0}

/* ============ 快速入口卡（描边为主） ============ */
.entry-card{
  height:100%;padding:26px 24px;border-radius:var(--radius-lg);
  border:1px solid var(--line);background:rgba(9,18,38,.55);
  transition:all .28s ease;position:relative;overflow:hidden;
}
.entry-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--cyan),transparent);opacity:0;transition:opacity .28s ease;
}
.entry-card:hover{transform:translateY(-4px);border-color:var(--line-strong);background:rgba(14,28,54,.7);box-shadow:var(--shadow-card)}
.entry-card:hover::before{opacity:1}
.entry-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  border:1px solid var(--line-strong);background:rgba(56,232,255,.1);
  color:var(--cyan);font-weight:700;font-size:17px;margin-bottom:16px;
}
.entry-card h3{font-size:17.5px;margin-bottom:10px}
.entry-card p{font-size:14.5px;margin-bottom:0;color:var(--muted)}
.entry-card .entry-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:14px;color:var(--cyan);
}
.entry-card .entry-link:hover{gap:11px}

/* ============ 知识库 ============ */
.kb-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.kb-card{
  padding:24px;border-radius:var(--radius-lg);
  border:1px solid var(--line);background:rgba(8,16,34,.55);
  transition:all .28s ease;display:flex;flex-direction:column;
}
.kb-card:hover{transform:translateY(-4px);border-color:var(--line-strong);background:rgba(13,26,50,.72);box-shadow:var(--shadow-card)}
.kb-card .kb-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.kb-card h3{font-size:17px;line-height:1.5;margin-bottom:10px}
.kb-card p{font-size:14.5px;margin-bottom:16px}
.kb-card .kb-link{margin-top:auto;font-size:14px;display:inline-flex;align-items:center;gap:6px;color:var(--cyan)}
.kb-card .kb-link:hover{gap:11px}
.side-card{
  padding:22px;border-radius:var(--radius-lg);
  border:1px solid var(--line);background:rgba(9,18,38,.62);
  margin-bottom:18px;
}
.side-card h4{font-size:16px;margin-bottom:16px}
.side-list li{
  display:flex;align-items:baseline;gap:10px;padding:9px 0;
  border-bottom:1px dashed rgba(120,220,255,.12);font-size:14.5px;
}
.side-list li:last-child{border-bottom:0}
.side-list a{color:var(--muted)}
.side-list a:hover{color:var(--cyan)}
.side-list .idx{color:var(--cyan);font-weight:700;font-size:13px;min-width:18px}
.side-cta{
  padding:24px;border-radius:var(--radius-lg);
  border:1px solid rgba(56,232,255,.28);
  background:linear-gradient(150deg,rgba(16,34,64,.9),rgba(8,16,34,.72));
  box-shadow:var(--shadow-card);
}
.side-cta h4{font-size:16.5px;margin-bottom:10px}
.side-cta p{font-size:14px;margin-bottom:16px}

/* ============ 流程 ============ */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative}
.flow-step{
  padding:26px 22px;border-radius:var(--radius-lg);
  border:1px solid var(--line);background:rgba(8,16,34,.5);
  transition:all .28s ease;
}
.flow-step:hover{transform:translateY(-4px);border-color:var(--line-strong);background:rgba(13,26,50,.72)}
.flow-num{
  font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--cyan);
  display:inline-block;padding:4px 12px;border-radius:999px;
  border:1px solid rgba(56,232,255,.3);background:rgba(56,232,255,.08);margin-bottom:16px;
}
.flow-step h3{font-size:16.5px;margin-bottom:10px}
.flow-step p{font-size:14.5px;margin-bottom:0}

/* ============ 指标条 ============ */
.metric-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  background:rgba(120,220,255,.1);
}
.metric-item{
  background:linear-gradient(180deg,rgba(11,22,44,.95),rgba(7,14,30,.95));
  padding:28px 22px;text-align:center;
}
.metric-item .num{
  font-size:clamp(1.6rem,3vw,2.2rem);font-weight:800;line-height:1.1;
  background:linear-gradient(120deg,var(--cyan),var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  font-family:Inter,system-ui,sans-serif;letter-spacing:.01em;
}
.metric-item .label{display:block;margin-top:8px;font-size:14px;color:var(--muted)}

/* ============ FAQ ============ */
.accordion-x .accordion-item{
  background:rgba(9,18,38,.6);border:1px solid var(--line);
  border-radius:var(--radius-md)!important;margin-bottom:12px;overflow:hidden;
}
.accordion-x .accordion-button{
  background:transparent;color:var(--text);font-size:16.5px;font-weight:600;
  padding:20px 24px 20px 26px;box-shadow:none;position:relative;
}
.accordion-x .accordion-button::after{
  background-image:none;content:"";width:11px;height:11px;
  border-right:2px solid var(--cyan);border-bottom:2px solid var(--cyan);
  transform:rotate(45deg);transition:transform .28s ease;margin-left:auto;
}
.accordion-x .accordion-button:not(.collapsed){color:var(--cyan);background:rgba(56,232,255,.06)}
.accordion-x .accordion-button:not(.collapsed)::after{transform:rotate(-135deg)}
.accordion-x .accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,var(--cyan),var(--violet));opacity:0;transition:opacity .28s ease;
}
.accordion-x .accordion-button:not(.collapsed)::before{opacity:1}
.accordion-x .accordion-button:focus{box-shadow:none;border-color:transparent}
.accordion-x .accordion-body{padding:0 24px 22px 26px;color:var(--muted);font-size:15.5px}
.accordion-x .accordion-body p:last-child{margin-bottom:0}

/* ============ 表单 ============ */
.form-panel{
  padding:34px;border-radius:var(--radius-xl);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(13,26,50,.88),rgba(7,14,30,.78));
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card);
}
.form-label-x{display:block;font-size:14px;color:var(--muted);margin-bottom:8px;letter-spacing:.02em}
.form-control-x,.form-select-x{
  width:100%;padding:13px 16px;border-radius:var(--radius-sm);
  background:rgba(4,10,22,.75);border:1px solid var(--line);color:var(--text);
  transition:all .25s ease;
}
.form-control-x::placeholder{color:rgba(168,183,212,.55)}
.form-control-x:focus,.form-select-x:focus{
  outline:none;border-color:var(--cyan);background:rgba(4,10,22,.92);
  box-shadow:0 0 0 4px rgba(56,232,255,.14);
}
.form-select-x option{background:#0A1428;color:var(--text)}
.form-hint{font-size:13px;color:rgba(168,183,212,.72);margin-top:16px;margin-bottom:0}
.cta-band{
  border-radius:var(--radius-xl);border:1px solid var(--line);
  background:linear-gradient(140deg,rgba(16,34,64,.9),rgba(7,14,30,.85));
  padding:42px;box-shadow:var(--shadow-card);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,232,255,.22),transparent 68%);
}
.cta-list li{display:flex;gap:11px;align-items:flex-start;font-size:15px;color:var(--muted);padding:7px 0}
.cta-list .tick{color:var(--green);font-weight:700}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;z-index:1;margin-top:40px;
  background:linear-gradient(180deg,rgba(6,12,26,.9),#04070F 60%);
  border-top:1px solid var(--line);padding:66px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px}
.footer-brand{display:inline-flex;align-items:center;gap:11px;color:var(--text);font-weight:700;font-size:18px;margin-bottom:16px}
.footer-brand:hover{color:var(--text)}
.footer-brand-col p{font-size:14.5px;max-width:340px;margin-bottom:0}
.site-footer h5{font-size:15px;letter-spacing:.04em;margin-bottom:16px;color:var(--text)}
.footer-links li{margin-bottom:10px}
.footer-links a{color:var(--muted);font-size:14.5px}
.footer-links a:hover{color:var(--cyan)}
.footer-sub p{font-size:14.5px;color:var(--muted)}
.site-footer .form-control{
  background:rgba(4,10,22,.75);border:1px solid var(--line);color:var(--text);
  border-radius:var(--radius-sm);padding:12px 15px;
}
.site-footer .form-control::placeholder{color:rgba(168,183,212,.55)}
.site-footer .form-control:focus{
  background:rgba(4,10,22,.92);border-color:var(--cyan);color:var(--text);
  box-shadow:0 0 0 4px rgba(56,232,255,.13);
}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13.5px;color:rgba(168,183,212,.8);
}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:20px}
.footer-bottom .links a{color:rgba(168,183,212,.85)}
.footer-bottom .links a:hover{color:var(--cyan)}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .footer-sub{grid-column:1 / -1}
}
@media (max-width:1023.98px){
  :root{--section-y:74px}
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .kb-grid{grid-template-columns:1fr}
  .entry-card{padding:22px 20px}
}
@media (max-width:991.98px){
  .nav-pill{display:none}
  .header-actions .btn-glow.d-none.d-lg-inline-flex{display:none!important}
  .metric-bar{grid-template-columns:repeat(2,1fr)}
  .breadcrumb-bar{padding-top:96px}
}
@media (max-width:767.98px){
  :root{--section-y:58px}
  body{font-size:16px}
  .help-hero{padding-bottom:52px}
  .hero-sub{font-size:16px}
  .sec-head{margin-bottom:32px}
  .search-box{flex-direction:column;border-radius:var(--radius-lg);padding:12px}
  .search-box .form-control{padding:12px 14px;border:1px solid var(--line);border-radius:var(--radius-sm);width:100%}
  .search-box .btn-glow{width:100%}
  .metric-bar{grid-template-columns:1fr}
  .cta-band{padding:28px 22px}
  .form-panel{padding:24px 20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .flow-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  .container-x{padding:0 16px}
  .hero-title{font-size:1.85rem}
  .brand{font-size:17px}
  .brand-mark{width:34px;height:34px;font-size:18px;border-radius:10px}
  .entry-card,.kb-card,.side-card,.side-cta{border-radius:16px}
  .btn-glow,.btn-ghost{width:100%}
  .header-actions .btn-glow{width:auto}
}