/* roulang page: index */
:root{
  --bg:#071016;
  --bg-2:#0B1A21;
  --card:#0E2028;
  --brand:#00E5C7;
  --brand-strong:#4dffe0;
  --brand-soft:rgba(0,229,199,.10);
  --amber:#FFB020;
  --violet:#6C5CE7;
  --text:#E6F1F2;
  --muted:#92A8AC;
  --dim:#6F8589;
  --line:rgba(255,255,255,.08);
  --glass-border:rgba(0,229,199,.18);
  --glass:rgba(18,38,46,.55);
  --r-card:14px;
  --r-glass:16px;
  --r-btn:12px;
  --r-input:10px;
  --r-img:12px;
  --r-tag:6px;
  --shadow:0 0 0 1px rgba(0,229,199,.10),0 18px 40px -20px rgba(0,0,0,.75);
  --shadow-hover:0 0 0 1px rgba(0,229,199,.30),0 24px 48px -22px rgba(0,0,0,.85),0 0 24px rgba(0,229,199,.22);
  --t:200ms ease-out;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"Barlow Semi Condensed","DIN Alternate",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(900px 520px at 10% -12%,rgba(0,229,199,.10),transparent 62%),
    radial-gradient(720px 440px at 94% 6%,rgba(108,92,231,.10),transparent 64%);
  background-repeat:no-repeat;
  overflow-x:hidden;
}
a{color:var(--brand);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--brand-strong)}
img{max-width:100%;display:block}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.02em;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:104px 0}
.section--tint{background:linear-gradient(180deg,rgba(11,26,33,0) 0%,rgba(11,26,33,.9) 22%,rgba(11,26,33,.9) 78%,rgba(11,26,33,0) 100%)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:40px}
.section-title{font-size:29px}
.section-lead{margin-top:10px;color:var(--muted);font-size:15px;max-width:640px}
.section-more{font-size:14px;color:var(--brand);border-bottom:1px solid rgba(0,229,199,.5);padding-bottom:2px}
.section-more:hover{border-bottom-color:var(--brand-strong);color:var(--brand-strong)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.14em;color:var(--brand);text-transform:uppercase;font-family:var(--font-num)}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,transparent,var(--brand))}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ============ header ============ */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(7,16,22,.72);backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);border-bottom:1px solid transparent;transition:background var(--t),border-color var(--t),box-shadow var(--t)}
.site-header.is-scrolled{background:rgba(7,16,22,.94);border-bottom-color:rgba(0,229,199,.24);box-shadow:0 16px 34px -24px rgba(0,0,0,.95)}
.nav-inner{display:flex;align-items:center;gap:22px;min-height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:17px;letter-spacing:.02em;white-space:nowrap}
.brand:hover{color:var(--text)}
.brand svg{width:26px;height:26px;flex:none}
.brand b{font-weight:700}
.brand b i{font-style:normal;color:var(--brand)}
.nav-collapse{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-link-x{position:relative;display:block;padding:10px 14px;font-size:15px;color:var(--muted);border-radius:10px;transition:color var(--t),background var(--t)}
.nav-link-x:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link-x.active{color:var(--brand)}
.nav-link-x.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--brand);box-shadow:0 0 12px rgba(0,229,199,.85)}
.nav-cta{margin-left:8px;white-space:nowrap}
.nav-toggle{width:44px;height:44px;margin-left:auto;border:1px solid var(--line);border-radius:10px;background:rgba(255,255,255,.04);display:inline-flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand);border-radius:2px}
@media (min-width:992px){
  .nav-collapse{display:flex !important;height:auto !important;visibility:visible !important}
}
@media (max-width:991.98px){
  .nav-collapse{position:fixed;left:0;right:0;top:68px;max-height:calc(100vh - 68px);overflow:auto;padding:12px 16px 22px;background:rgba(9,20,26,.98);border-top:1px solid var(--line);border-bottom:1px solid rgba(0,229,199,.20);backdrop-filter:blur(16px)}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link-x{padding:14px 12px;font-size:16px;border-left:3px solid transparent;border-radius:0}
  .nav-link-x.active{color:var(--brand);border-left-color:var(--brand);background:rgba(0,229,199,.06)}
  .nav-link-x.active::after{display:none}
  .nav-collapse .btn-main{width:100%;justify-content:center;margin-top:14px}
}

/* ============ buttons ============ */
.btn-main,.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;font-size:15px;font-weight:600;border-radius:var(--r-btn);cursor:pointer;border:1px solid transparent;transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t)}
.btn-main{background:var(--brand);color:#04211d;box-shadow:0 0 0 1px rgba(0,229,199,.35),0 14px 30px -16px rgba(0,229,199,.65)}
.btn-main:hover{background:var(--brand-strong);color:#04211d;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(0,229,199,.5),0 18px 36px -14px rgba(0,229,199,.7),0 0 24px rgba(0,229,199,.28)}
.btn-main:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--brand);border-color:rgba(0,229,199,.55)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-strong);border-color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-block{width:100%}

/* ============ hero ============ */
.hero{position:relative;padding:76px 0 88px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,229,199,.06),transparent 55%);pointer-events:none}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;font-size:13px;color:var(--brand);background:var(--brand-soft);border:1px solid var(--glass-border)}
.hero-title{margin-top:22px;font-size:44px;line-height:1.26;letter-spacing:.02em}
.hero-sub{margin-top:18px;font-size:17px;color:var(--muted);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px 20px;margin-top:26px;font-size:13px;color:var(--dim)}
.hero-trust span{display:inline-flex;align-items:center;gap:8px}
.hero-trust span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(0,229,199,.9)}
.hero-visual{position:relative;min-height:400px;border-radius:var(--r-glass);overflow:hidden;border:1px solid var(--glass-border);box-shadow:var(--shadow);isolation:isolate}
.hero-visual-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;transform:scale(1.04)}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(150deg,rgba(7,16,22,.42),rgba(7,16,22,.80))}
.hero-visual-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(0,229,199,.10) 1px,transparent 1px),linear-gradient(90deg,rgba(0,229,199,.10) 1px,transparent 1px);background-size:44px 44px;opacity:.5}
.hero-panel{position:relative;z-index:2;margin:28px;padding:24px;border-radius:var(--r-glass);background:var(--glass);backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);border:1px solid var(--glass-border)}
.hero-panel::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,rgba(0,229,199,.85),rgba(0,229,199,0))}
.hero-panel-head{font-size:13px;letter-spacing:.14em;color:var(--brand);font-family:var(--font-num);text-transform:uppercase}
.hero-steps{margin-top:16px;display:grid;gap:12px}
.hero-steps li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text);line-height:1.6}
.hero-steps li .num{flex:none;width:34px;font-size:15px;color:var(--amber)}

/* ============ metrics ============ */
.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.metric-card{position:relative;padding:22px;border-radius:var(--r-glass);background:var(--glass);backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);border:1px solid var(--glass-border);box-shadow:var(--shadow);transition:transform var(--t),box-shadow var(--t)}
.metric-card::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,rgba(0,229,199,.7),rgba(0,229,199,0))}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.metric-name{font-size:13px;color:var(--muted)}
.metric-value{margin-top:10px;display:flex;align-items:baseline;gap:6px;font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:38px;font-weight:600;color:var(--text);line-height:1}
.metric-value small{font-size:13px;color:var(--dim);font-family:var(--font-cn)}
.metric-foot{margin-top:14px;padding-top:12px;border-top:1px solid var(--line);display:flex;justify-content:space-between;font-size:13px}
.tag-up{color:var(--brand)}
.tag-down{color:var(--amber)}

/* ============ service matrix ============ */
.matrix{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:18px}
.m-card{position:relative;padding:26px;border-radius:var(--r-card);background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow);transition:transform var(--t),box-shadow var(--t),border-color var(--t);overflow:hidden}
.m-card:hover{transform:translateY(-4px);border-color:var(--glass-border);box-shadow:var(--shadow-hover)}
.m-card .idx{font-family:var(--font-num);font-size:13px;letter-spacing:.14em;color:var(--violet)}
.m-ico{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--brand-soft);border:1px solid var(--glass-border);color:var(--brand);margin-bottom:16px}
.m-ico svg{width:22px;height:22px}
.m-title{font-size:17px;line-height:1.45}
.m-text{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.7}
.m-link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:14px;color:var(--brand);border-bottom:1px solid rgba(0,229,199,.45);padding-bottom:2px}
.m-link:hover{color:var(--brand-strong);border-bottom-color:var(--brand-strong)}
.m-card--lead{padding:0;display:flex;flex-direction:column}
.m-card--lead .m-body{padding:26px}
.m-card--lead .m-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.m-card--lead .m-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.m-card--lead:hover .m-media img{transform:scale(1.03)}
.m-card--lead .m-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,16,22,.10),rgba(7,16,22,.72))}
.span-5{grid-column:span 5}
.span-7{grid-column:span 7}
.span-4{grid-column:span 4}
.span-6{grid-column:span 6}
.split-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}

/* ============ compare ============ */
.compare{position:relative;display:grid;grid-template-columns:1fr 1px 1fr;gap:0;border-radius:var(--r-glass);border:1px solid var(--glass-border);background:var(--glass);backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);overflow:hidden}
.compare-col{padding:30px}
.compare-divider{background:linear-gradient(180deg,transparent,rgba(0,229,199,.75),transparent);box-shadow:0 0 18px rgba(0,229,199,.45)}
.compare-col h3{font-size:18px}
.compare-col p.hint{margin-top:8px;font-size:13px;color:var(--dim)}
.compare-list{margin-top:20px;display:grid;gap:12px}
.compare-list li{display:flex;gap:10px;font-size:15px;line-height:1.65}
.compare-list li::before{content:"";flex:none;width:16px;height:16px;margin-top:5px;border-radius:5px}
.compare-col--dim .compare-list li{color:var(--dim)}
.compare-col--dim .compare-list li::before{background:rgba(255,255,255,.07);border:1px solid var(--line)}
.compare-col--hot .compare-list li{color:var(--text)}
.compare-col--hot .compare-list li::before{background:var(--brand-soft);border:1px solid var(--glass-border)}
.compare-col--hot .compare-list li::after{content:"";position:absolute}
.diff{font-family:var(--font-num);color:var(--amber);font-variant-numeric:tabular-nums}

/* ============ news / cms ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.news-card{display:flex;flex-direction:column;height:100%;border-radius:var(--r-card);background:var(--card);border:1px solid var(--line);overflow:hidden;box-shadow:var(--shadow);transition:transform var(--t),border-color var(--t),box-shadow var(--t)}
.news-card:hover{transform:translateY(-4px);border-color:var(--glass-border);box-shadow:var(--shadow-hover)}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(140deg,#0B1A21,#102b33)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,16,22,0),rgba(7,16,22,.55))}
.badge-cat{position:absolute;left:12px;top:12px;z-index:2;padding:4px 10px;border-radius:var(--r-tag);font-size:12px;color:#CFC9FF;background:rgba(108,92,231,.22);border:1px solid rgba(108,92,231,.45)}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1}
.news-title{font-size:17px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--text)}
.news-card:hover .news-title{color:var(--brand-strong)}
.news-sum{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;padding-top:16px;font-size:13px;color:var(--dim);display:flex;justify-content:space-between;gap:10px;border-top:1px solid var(--line)}
.empty-state{padding:40px 24px;border-radius:var(--r-glass);border:1px dashed var(--glass-border);background:rgba(18,38,46,.35);text-align:center}
.empty-state p{color:var(--muted);font-size:15px}
.empty-state a{display:inline-block;margin-top:14px;font-size:14px;color:var(--brand);border-bottom:1px solid rgba(0,229,199,.45)}

/* ============ faq ============ */
.faq-wrap{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.faq-col{display:grid;gap:18px;align-content:start}
.faq-item{border-radius:var(--r-card);background:var(--card);border:1px solid var(--line);overflow:hidden;transition:border-color var(--t),background var(--t),box-shadow var(--t)}
.faq-item.open{border-color:var(--glass-border);background:rgba(0,229,199,.05)}
.faq-q{width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:14px;padding:20px 22px;background:transparent;border:0;border-left:3px solid transparent;text-align:left;font-size:16px;font-weight:600;color:var(--text);cursor:pointer;transition:border-color var(--t),background var(--t),color var(--t)}
.faq-q:hover{background:rgba(0,229,199,.05)}
.faq-item.open .faq-q{border-left-color:var(--brand);color:var(--brand-strong)}
.faq-q .caret{flex:none;width:18px;height:18px;margin-top:4px;color:var(--muted);transition:transform var(--t),color var(--t)}
.faq-item.open .faq-q .caret{transform:rotate(180deg);color:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease-out}
.faq-a-inner{padding:0 22px 22px 22px;font-size:15px;color:var(--muted);line-height:1.8}

/* ============ cta ============ */
.cta-shell{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,460px);gap:24px;align-items:start}
.cta-points{display:grid;gap:16px;margin-top:26px}
.cta-points li{display:flex;gap:14px;padding:18px 20px;border-radius:var(--r-card);background:rgba(18,38,46,.42);border:1px solid var(--line)}
.cta-points .dot{flex:none;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:var(--brand-soft);border:1px solid var(--glass-border);color:var(--brand)}
.cta-points .dot svg{width:18px;height:18px}
.cta-points strong{display:block;font-size:16px}
.cta-points span{display:block;margin-top:6px;font-size:14px;color:var(--muted)}
.form-card{position:relative;padding:28px;border-radius:var(--r-glass);background:var(--glass);backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);border:1px solid var(--glass-border);box-shadow:var(--shadow)}
.form-card::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,rgba(0,229,199,.85),rgba(0,229,199,0))}
.form-card h3{font-size:19px}
.form-card .form-note{margin-top:8px;font-size:13px;color:var(--dim)}
.field{margin-top:18px}
.field label{display:block;font-size:14px;color:var(--muted);margin-bottom:8px}
.field .req{color:var(--amber)}
.control{width:100%;padding:12px 14px;border-radius:var(--r-input);background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text);transition:border-color var(--t),box-shadow var(--t),background var(--t)}
.control::placeholder{color:var(--dim)}
.control:focus{outline:none;border-color:var(--brand);background:rgba(0,229,199,.06);box-shadow:0 0 0 3px rgba(0,229,199,.16)}
select.control{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 50%,calc(100% - 15px) 50%;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
textarea.control{min-height:96px;resize:vertical}
.form-tip{margin-top:16px;font-size:13px;color:var(--dim)}

/* ============ footer ============ */
.site-footer{position:relative;margin-top:40px;padding:64px 0 26px;background:var(--bg-2)}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,rgba(0,229,199,0),rgba(0,229,199,.75),rgba(0,229,199,0))}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:17px}
.footer-brand svg{width:24px;height:24px}
.footer-brand i{font-style:normal;color:var(--brand)}
.footer-desc{margin-top:16px;font-size:14px;color:var(--muted);max-width:340px;line-height:1.8}
.footer-anchors{margin-top:18px;display:flex;flex-wrap:wrap;gap:10px}
.footer-anchors a{font-size:13px;padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--muted)}
.footer-anchors a:hover{color:var(--brand);border-color:var(--glass-border)}
.footer-col h4{font-size:15px;margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{margin-top:44px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13px;color:var(--dim)}

/* ============ responsive ============ */
@media (max-width:1199.98px){
  .hero-title{font-size:38px}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:991.98px){
  .section{padding:76px 0}
  .hero{padding:56px 0 68px}
  .hero-title{font-size:32px}
  .hero-visual{min-height:340px;margin-top:8px}
  .span-5,.span-7,.span-4,.span-6{grid-column:span 12}
  .split-2{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .faq-wrap{grid-template-columns:1fr}
  .cta-shell{grid-template-columns:1fr}
  .compare{grid-template-columns:1fr}
  .compare-divider{height:1px;background:linear-gradient(90deg,transparent,rgba(0,229,199,.75),transparent)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767.98px){
  body{font-size:15px}
  .container{padding:0 16px}
  .section{padding:58px 0}
  .hero{padding:40px 0 54px}
  .hero-title{font-size:28px}
  .hero-sub{font-size:15px}
  .hero-actions{gap:10px}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%}
  .hero-trust{flex-direction:column;gap:8px}
  .section-title{font-size:22px}
  .metrics{grid-template-columns:1fr;gap:14px}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .metric-value{font-size:32px}
  .compare-col{padding:22px}
  .hero-panel{margin:18px;padding:20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --bg:#071016;
  --bg-2:#0B1A21;
  --card:#0E2028;
  --glass:rgba(18,38,46,.55);
  --glass-line:rgba(0,229,199,.18);
  --brand:#00E5C7;
  --brand-soft:rgba(0,229,199,.10);
  --brand-mid:rgba(0,229,199,.45);
  --amber:#FFB020;
  --violet:#6C5CE7;
  --text:#E6F1F2;
  --muted:#92A8AC;
  --dim:#6F8589;
  --line:rgba(255,255,255,.08);
  --r-card:14px;
  --r-glass:16px;
  --r-btn:12px;
  --r-input:10px;
  --r-img:12px;
  --r-tag:6px;
  --shadow:0 0 0 1px rgba(0,229,199,.10), 0 18px 40px -20px rgba(0,0,0,.75);
  --glow:0 0 24px rgba(0,229,199,.22);
  --num-font:"Barlow Semi Condensed","DIN Alternate",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
  background-image:
    radial-gradient(900px 520px at 12% -8%, rgba(0,229,199,.10), transparent 60%),
    radial-gradient(760px 460px at 92% 4%, rgba(108,92,231,.12), transparent 62%);
  background-repeat:no-repeat;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease-out,opacity .2s ease-out;}
a:hover{color:#5CFBE4;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.02em;line-height:1.3;}
p{margin:0;}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.section-head h2{font-size:29px;}
.section-head .lead-line{color:var(--muted);font-size:15px;margin-top:8px;}
.link-more{font-size:15px;border-bottom:1px solid var(--brand-mid);padding-bottom:3px;color:var(--brand);}
.link-more:hover{border-bottom-color:var(--brand);text-shadow:0 0 12px rgba(0,229,199,.5);}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,16,22,.72);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background .22s ease-out,border-color .22s ease-out;
}
.site-header.scrolled{background:rgba(7,16,22,.94);border-bottom-color:var(--glass-line);}
.nav-inner{display:flex;align-items:center;gap:24px;height:70px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-size:17px;letter-spacing:.02em;white-space:nowrap;}
.brand svg{width:26px;height:26px;flex:none;}
.brand b{font-weight:700;}
.brand b i{font-style:normal;color:var(--brand);}
.nav-toggle{
  margin-left:auto;width:44px;height:40px;border:1px solid var(--glass-line);border-radius:var(--r-btn);
  background:rgba(255,255,255,.03);display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand);border-radius:2px;}
.nav-collapse{flex:1;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.nav-list{display:flex;align-items:center;gap:6px;}
.nav-link-x{
  position:relative;display:block;padding:10px 14px;font-size:15px;color:var(--muted);border-radius:var(--r-tag);
}
.nav-link-x:hover{color:var(--text);background:rgba(255,255,255,.04);}
.nav-link-x.active{color:var(--brand);}
.nav-link-x.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 12px rgba(0,229,199,.65);
}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 18px;border-radius:var(--r-btn);border:none;cursor:pointer;
  background:var(--brand);color:#04211D;font-size:15px;font-weight:700;letter-spacing:.02em;
  box-shadow:0 0 0 1px rgba(0,229,199,.35),0 10px 30px -14px rgba(0,229,199,.85);
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out;
}
.btn-main:hover{background:#22F0D5;color:#04211D;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(0,229,199,.6),0 0 26px rgba(0,229,199,.42);}
.btn-main:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 18px;border-radius:var(--r-btn);border:1px solid var(--brand-mid);
  background:transparent;color:var(--brand);font-size:15px;font-weight:600;
  transition:background .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-2px);color:var(--brand);}

/* ---------- Breadcrumb ---------- */
.crumbs{padding:26px 0 0;}
.crumbs ol{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--dim);flex-wrap:wrap;}
.crumbs li{display:flex;align-items:center;gap:8px;min-width:0;}
.crumbs li+li::before{content:"›";color:var(--dim);}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--brand);}
.crumbs .current{color:var(--dim);max-width:340px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}

/* ---------- Article head ---------- */
.article-hero{padding:28px 0 40px;border-bottom:1px solid var(--line);}
.article-hero h1{font-size:42px;line-height:1.28;max-width:900px;}
.article-meta{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:20px;font-size:13px;color:var(--dim);}
.article-meta .tag-cat{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
  background:rgba(108,92,231,.16);color:#B7AEFB;font-size:12px;letter-spacing:.02em;
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--dim);}
.article-meta time{color:var(--muted);font-variant-numeric:tabular-nums;}

/* ---------- Article layout ---------- */
.article-layout{padding:56px 0 24px;}
.article-main{max-width:820px;}
.article-body{font-size:16.5px;line-height:2;color:#DCEBEC;}
.article-body > * + *{margin-top:22px;}
.article-body h2{
  font-size:28px;margin-top:48px;padding-left:16px;position:relative;color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),rgba(0,229,199,.15));
  box-shadow:0 0 16px rgba(0,229,199,.45);
}
.article-body h3{font-size:19px;margin-top:34px;color:#CFE9EA;}
.article-body p{color:#D3E5E7;}
.article-body ul,.article-body ol{padding-left:22px;}
.article-body ul li,.article-body ol li{margin-top:10px;position:relative;padding-left:6px;}
.article-body ul li::marker{color:var(--brand);}
.article-body ol{list-style:decimal;}
.article-body ol li::marker{color:var(--brand);font-weight:700;}
.article-body blockquote{
  margin:30px 0;padding:18px 22px;border-left:3px solid var(--brand);
  background:rgba(0,229,199,.06);border-radius:0 var(--r-card) var(--r-card) 0;color:#C8DFE2;
}
.article-body blockquote p{color:#C8DFE2;}
.article-body img{border-radius:var(--r-img);margin:30px auto;box-shadow:var(--shadow);}
.article-body figure{margin:30px 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--dim);margin-top:10px;}
.article-body a{color:var(--brand);border-bottom:1px solid var(--brand-mid);padding-bottom:1px;}
.article-body a:hover{border-bottom-color:var(--brand);text-shadow:0 0 12px rgba(0,229,199,.45);}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:28px 0;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;}
.article-body thead th{background:rgba(0,229,199,.07);color:var(--text);font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.02);}
.article-body tbody tr:last-child td{border-bottom:none;}
.article-body code{font-family:var(--num-font);background:rgba(255,255,255,.06);padding:2px 6px;border-radius:6px;font-size:14px;}
.article-body hr{border:none;height:1px;background:var(--line);margin:40px 0;}

/* ---------- Tags / post nav ---------- */
.article-tags{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:48px;padding-top:26px;border-top:1px solid var(--line);}
.article-tags span.label{font-size:13px;color:var(--dim);}
.tag-x{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--r-tag);
  background:var(--brand-soft);color:var(--brand);font-size:13px;border:1px solid var(--glass-line);
}
.tag-x:hover{background:rgba(0,229,199,.18);color:var(--brand);}
.tag-violet{background:rgba(108,92,231,.16);color:#B7AEFB;border-color:rgba(108,92,231,.3);}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:40px;}
.post-nav a{
  display:block;padding:20px 22px;border-radius:var(--r-card);background:var(--glass);
  border:1px solid var(--line);color:var(--text);transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.post-nav a:hover{transform:translateY(-3px);border-color:var(--glass-line);box-shadow:var(--glow);color:var(--text);}
.post-nav .k{display:block;font-size:12px;color:var(--dim);margin-bottom:8px;letter-spacing:.04em;}
.post-nav .t{font-size:16px;font-weight:600;}
.post-nav .next{text-align:right;}

/* ---------- Sidebar ---------- */
.side-col{max-width:320px;}
.side-card{
  background:var(--glass);backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--glass-line);border-radius:var(--r-glass);
  padding:24px;position:relative;overflow:hidden;box-shadow:var(--shadow);
}
.side-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(0,229,199,.7),rgba(0,229,199,0) 70%);
}
.side-card + .side-card{margin-top:20px;}
.side-card h3{font-size:16px;margin-bottom:16px;}
.info-list li{display:flex;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--muted);}
.info-list li:last-child{border-bottom:none;}
.info-list li b{color:var(--text);font-weight:600;font-variant-numeric:tabular-nums;}
.quick-links li + li{margin-top:10px;}
.quick-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 14px;border-radius:var(--r-input);background:rgba(255,255,255,.03);
  border:1px solid var(--line);color:var(--text);font-size:14px;
  transition:border-color .2s ease-out,background .2s ease-out,transform .2s ease-out;
}
.quick-links a:hover{border-color:var(--glass-line);background:rgba(0,229,199,.07);transform:translateX(3px);color:var(--text);}
.quick-links .arw{color:var(--brand);font-size:14px;}
.side-note{font-size:13px;color:var(--dim);line-height:1.8;margin-top:14px;}

/* ---------- News cards ---------- */
.news-card{
  height:100%;display:flex;flex-direction:column;overflow:hidden;
  background:var(--glass);backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow);
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.news-card:hover{transform:translateY(-4px);border-color:var(--glass-line);box-shadow:0 0 0 1px rgba(0,229,199,.18),0 0 24px rgba(0,229,199,.18);}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#0E2028,#0B1A21);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-badge{
  position:absolute;top:12px;left:12px;padding:4px 11px;border-radius:999px;font-size:12px;
  background:rgba(7,16,22,.78);color:var(--brand);border:1px solid var(--glass-line);backdrop-filter:blur(6px);
}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.news-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body h3 a{color:var(--text);}
.news-body h3 a:hover{color:var(--brand);}
.news-body .desc{
  margin-top:10px;font-size:14px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{margin-top:auto;padding-top:16px;font-size:12.5px;color:var(--dim);font-variant-numeric:tabular-nums;}

/* ---------- Empty state ---------- */
.empty-state{
  padding:46px 24px;text-align:center;border:1px dashed var(--line);border-radius:var(--r-card);
  background:rgba(255,255,255,.02);
}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:16px;}

/* ---------- FAQ ---------- */
.faq-list .accordion-item{background:transparent;border:none;border-bottom:1px solid var(--line);}
.faq-list .accordion-button{
  background:transparent;color:var(--text);font-size:16px;font-weight:600;padding:20px 44px 20px 16px;
  box-shadow:none;border-radius:0;
}
.faq-list .accordion-button::after{
  content:"";position:absolute;right:16px;top:50%;width:10px;height:10px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:translateY(-70%) rotate(45deg);transition:transform .22s ease-out;background:none;
}
.faq-list .accordion-button:not(.collapsed){
  color:var(--brand);background:rgba(0,229,199,.05);box-shadow:inset 3px 0 0 var(--brand);
}
.faq-list .accordion-button:not(.collapsed)::after{transform:translateY(-30%) rotate(-135deg);}
.faq-list .accordion-button:focus{box-shadow:none;}
.faq-list .accordion-body{color:var(--muted);font-size:15px;line-height:1.9;padding:0 40px 22px 19px;}
.faq-list{border-top:1px solid var(--line);}

/* ---------- CTA ---------- */
.cta-block{
  position:relative;overflow:hidden;border-radius:var(--r-glass);
  border:1px solid var(--glass-line);
  background:linear-gradient(120deg,rgba(14,32,40,.92),rgba(11,26,33,.86)),
             url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  box-shadow:var(--shadow);
}
.cta-block::before{content:"";position:absolute;inset:0;background:rgba(7,16,22,.55);}
.cta-inner{position:relative;padding:48px;display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center;}
.cta-inner h2{font-size:28px;}
.cta-inner p{color:var(--muted);margin-top:12px;font-size:15px;}
.cta-points li{position:relative;padding-left:24px;margin-top:12px;color:#CFE5E7;font-size:15px;}
.cta-points li::before{
  content:"";position:absolute;left:0;top:9px;width:10px;height:6px;
  border-left:2px solid var(--brand);border-bottom:2px solid var(--brand);transform:rotate(-45deg);
}
.cta-actions{display:flex;flex-direction:column;gap:14px;}

/* ---------- Footer ---------- */
.site-footer{margin-top:40px;border-top:1px solid var(--line);background:var(--bg-2);position:relative;}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(0,229,199,.75),rgba(0,229,199,0) 75%);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding:64px 0 44px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;color:var(--text);font-weight:700;}
.footer-brand svg{width:24px;height:24px;}
.footer-brand i{font-style:normal;color:var(--brand);}
.footer-desc{margin-top:16px;font-size:14px;color:var(--muted);line-height:1.85;max-width:340px;}
.footer-anchors{display:flex;flex-wrap:wrap;gap:14px;margin-top:18px;}
.footer-anchors a{font-size:13.5px;color:var(--brand);border-bottom:1px solid var(--brand-mid);padding-bottom:2px;}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text);}
.footer-col li + li{margin-top:11px;}
.footer-col a{font-size:14px;color:var(--muted);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid var(--line);font-size:12.5px;color:var(--dim);
}

/* ---------- Responsive ---------- */
@media (min-width:992px){
  .nav-collapse{display:flex !important;align-items:center;justify-content:space-between;flex:1;}
}
@media (max-width:1199px){
  .article-hero h1{font-size:36px;}
  .side-col{max-width:none;}
}
@media (max-width:991px){
  .section{padding:64px 0;}
  .article-hero h1{font-size:30px;}
  .article-body{font-size:16px;line-height:1.95;}
  .article-main{max-width:none;}
  .nav-inner{height:64px;}
  .nav-collapse{
    margin-top:12px;padding:14px;border-radius:var(--r-card);
    background:rgba(11,26,33,.97);border:1px solid var(--glass-line);
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:2px;}
  .nav-link-x{padding:12px 14px;}
  .nav-link-x.active{background:rgba(0,229,199,.07);}
  .nav-link-x.active::after{left:0;top:10px;bottom:10px;right:auto;width:3px;height:auto;}
  .nav-cta{margin-top:14px;width:100%;}
  .side-card + .side-card{margin-top:18px;}
  .side-col{margin-top:36px;}
  .cta-inner{grid-template-columns:1fr;padding:34px 26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .section-head h2{font-size:22px;}
  .article-hero h1{font-size:26px;}
  .article-body h2{font-size:22px;margin-top:36px;}
  .article-body h3{font-size:17px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav .next{text-align:left;}
  .btn-main,.btn-ghost{width:100%;}
  .crumbs .current{max-width:180px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
}

/* roulang page: category1 */
:root{
  --bg:#071016;
  --bg-2:#0B1A21;
  --card:#0E2028;
  --primary:#00E5C7;
  --amber:#FFB020;
  --violet:#6C5CE7;
  --text:#E6F1F2;
  --text-2:#92A8AC;
  --text-3:#6F8589;
  --line:rgba(255,255,255,.08);
  --glass:rgba(18,38,46,.55);
  --glass-line:rgba(0,229,199,.18);
  --r-card:14px;
  --r-glass:16px;
  --r-btn:12px;
  --r-input:10px;
  --r-img:12px;
  --r-tag:6px;
  --shadow:0 0 0 1px rgba(0,229,199,.10), 0 18px 40px -20px rgba(0,0,0,.75);
  --shadow-hover:0 0 0 1px rgba(0,229,199,.22), 0 24px 46px -20px rgba(0,0,0,.8), 0 0 24px rgba(0,229,199,.22);
  --ease:200ms ease-out;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Barlow Semi Condensed","DIN Alternate",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 12% -10%, rgba(0,229,199,.10), transparent 60%),
    radial-gradient(760px 460px at 92% 4%, rgba(108,92,231,.10), transparent 62%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color var(--ease),opacity var(--ease);}
a:hover{color:#5CF6E2;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;letter-spacing:.02em;line-height:1.3;}
p{margin:0;}
:focus{outline:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ============ 按钮 ============ */
.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  font-size:15px;
  font-weight:600;
  color:#04181A;
  background:var(--primary);
  border:1px solid var(--primary);
  border-radius:var(--r-btn);
  box-shadow:0 0 22px rgba(0,229,199,.28);
  cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease);
}
.btn-main:hover{
  background:#2BF3D9;
  color:#04181A;
  transform:translateY(-2px);
  box-shadow:0 0 30px rgba(0,229,199,.45);
}
.btn-main:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:12px 22px;
  font-size:15px;
  font-weight:600;
  color:var(--primary);
  background:transparent;
  border:1px solid rgba(0,229,199,.55);
  border-radius:var(--r-btn);
  cursor:pointer;
  transition:background var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-ghost:hover{
  background:rgba(0,229,199,.10);
  color:var(--primary);
  transform:translateY(-2px);
  box-shadow:0 0 20px rgba(0,229,199,.18);
}
.btn-ghost:active{transform:translateY(0);}
.link-more{
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  border-bottom:1px solid rgba(0,229,199,.5);
  padding-bottom:2px;
}
.link-more:hover{border-bottom-color:var(--primary);text-shadow:0 0 12px rgba(0,229,199,.5);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(7,16,22,.82);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,16,22,.95);
  border-bottom-color:transparent;
  box-shadow:0 1px 0 0 rgba(0,229,199,.35), 0 12px 30px -22px rgba(0,0,0,.9);
}
.nav-inner{
  position:relative;
  display:flex;
  align-items:center;
  gap:20px;
  min-height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  font-size:17px;
  font-weight:700;
  letter-spacing:.02em;
  white-space:nowrap;
}
.brand svg{width:26px;height:26px;flex:0 0 auto;}
.brand i{font-style:normal;color:var(--primary);}
.brand:hover{color:var(--text);}
.nav-toggle{
  margin-left:auto;
  width:44px;
  height:40px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  background:rgba(0,229,199,.06);
  border:1px solid var(--glass-line);
  border-radius:10px;
  cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--primary);}
.nav-collapse{width:100%;}
.nav-list{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link-x{
  position:relative;
  display:inline-block;
  padding:9px 14px;
  font-size:15px;
  color:var(--text-2);
  border-radius:8px;
  transition:color var(--ease),background var(--ease);
}
.nav-link-x:hover{color:var(--text);}
.nav-link-x.active{color:var(--primary);}
.nav-link-x.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:-3px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 12px rgba(0,229,199,.85);
}
.nav-cta{padding:10px 18px;font-size:14px;white-space:nowrap;}

/* ============ 短 Hero ============ */
.page-hero{
  position:relative;
  min-height:340px;
  display:flex;
  align-items:center;
  padding:56px 0 48px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg, rgba(7,16,22,.94) 8%, rgba(7,16,22,.72) 48%, rgba(7,16,22,.88) 100%);
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(0,229,199,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,199,.07) 1px, transparent 1px);
  background-size:46px 46px;
  mask-image:radial-gradient(760px 380px at 22% 40%, #000 10%, transparent 78%);
  -webkit-mask-image:radial-gradient(760px 380px at 22% 40%, #000 10%, transparent 78%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb-x{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:18px;
  flex-wrap:wrap;
}
.breadcrumb-x a{color:var(--text-2);}
.breadcrumb-x a:hover{color:var(--primary);}
.breadcrumb-x .sep{color:var(--text-3);}
.breadcrumb-x .cur{color:var(--text-2);}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 12px;
  font-size:12.5px;
  letter-spacing:.04em;
  color:var(--primary);
  background:rgba(0,229,199,.10);
  border:1px solid var(--glass-line);
  border-radius:999px;
  margin-bottom:16px;
}
.hero-tag .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);}
.page-hero h1{
  font-size:42px;
  font-weight:700;
  max-width:820px;
  margin-bottom:16px;
}
.page-hero h1 em{font-style:normal;color:var(--primary);}
.hero-sub{
  font-size:16px;
  color:var(--text-2);
  max-width:660px;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  gap:10px 26px;
  margin-top:26px;
  font-size:13px;
  color:var(--text-3);
}
.hero-facts li{position:relative;padding-left:14px;}
.hero-facts li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:6px;height:6px;
  border-radius:50%;
  background:rgba(0,229,199,.75);
}

/* ============ 通用板块 ============ */
.sec{padding:96px 0;position:relative;z-index:1;}
.sec-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{margin-bottom:44px;}
.sec-title{
  font-size:29px;
  font-weight:700;
  margin-bottom:10px;
}
.sec-title .bar{
  display:inline-block;
  width:6px;height:22px;
  margin-right:12px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--primary),rgba(0,229,199,.15));
  vertical-align:-2px;
}
.sec-sub{font-size:15px;color:var(--text-2);max-width:680px;}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;}

/* ============ 指标小看板 ============ */
.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.metric-card{
  position:relative;
  padding:24px;
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.metric-card::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  background:linear-gradient(90deg, rgba(0,229,199,.85), rgba(0,229,199,0));
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.metric-name{font-size:13px;color:var(--text-2);margin-bottom:14px;letter-spacing:.02em;}
.metric-values{display:flex;align-items:baseline;gap:8px;}
.metric-num{
  font-family:var(--font-num);
  font-size:42px;
  font-weight:700;
  line-height:1;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
}
.metric-unit{font-size:13px;color:var(--text-3);}
.metric-tag{
  display:inline-block;
  margin-top:14px;
  padding:3px 10px;
  font-size:12px;
  border-radius:var(--r-tag);
  background:rgba(0,229,199,.10);
  color:var(--primary);
}
.metric-tag.warn{background:rgba(255,176,32,.12);color:var(--amber);}
.metric-tag.violet{background:rgba(108,92,231,.16);color:#A79BFF;}
.metric-foot{
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}

/* ============ 条目清单 ============ */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.check-item{
  display:flex;
  gap:16px;
  padding:20px 22px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.check-item:hover{
  transform:translateY(-3px);
  border-color:var(--glass-line);
  box-shadow:var(--shadow-hover);
}
.check-ico{
  flex:0 0 40px;
  width:40px;height:40px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  background:rgba(0,229,199,.10);
  border:1px solid var(--glass-line);
}
.check-ico svg{width:20px;height:20px;stroke:var(--primary);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.check-txt h3{font-size:16.5px;font-weight:600;margin-bottom:6px;}
.check-txt p{font-size:14px;color:var(--text-2);line-height:1.7;}
.check-index{
  font-family:var(--font-num);
  font-size:12px;
  color:var(--text-3);
  letter-spacing:.08em;
  display:block;
  margin-bottom:4px;
}

/* ============ 对照 ============ */
.compare-wrap{
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.compare-grid{display:grid;grid-template-columns:1fr 1px 1fr;}
.compare-col{padding:28px 26px;}
.compare-col h3{
  font-size:16px;
  font-weight:700;
  display:flex;
  align-items:center;
  gap:9px;
  margin-bottom:18px;
}
.compare-col h3 .pip{width:8px;height:8px;border-radius:50%;}
.compare-col.bad h3{color:var(--amber);}
.compare-col.bad h3 .pip{background:var(--amber);box-shadow:0 0 10px rgba(255,176,32,.7);}
.compare-col.good h3{color:var(--primary);}
.compare-col.good h3 .pip{background:var(--primary);box-shadow:0 0 10px rgba(0,229,199,.7);}
.compare-mid{
  background:linear-gradient(180deg, rgba(0,229,199,0), rgba(0,229,199,.65), rgba(0,229,199,0));
}
.compare-list li{
  display:flex;
  gap:10px;
  padding:11px 0;
  font-size:14.5px;
  border-bottom:1px dashed var(--line);
  line-height:1.6;
}
.compare-list li:last-child{border-bottom:none;}
.compare-list svg{flex:0 0 16px;width:16px;height:16px;margin-top:5px;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.compare-col.bad .compare-list{color:var(--text-3);}
.compare-col.bad .compare-list svg{stroke:var(--amber);}
.compare-col.good .compare-list{color:#CFEDEA;}
.compare-col.good .compare-list svg{stroke:var(--primary);}

/* ============ 图文块 ============ */
.split-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;}
.split-media{
  position:relative;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow);
}
.split-media img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 300ms ease-out;}
.split-media:hover img{transform:scale(1.03);}
.split-media .cap{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:12px 16px;
  font-size:12.5px;
  color:var(--text-2);
  background:linear-gradient(180deg, rgba(7,16,22,0) 0%, rgba(7,16,22,.9) 100%);
}
.split-body h2{font-size:28px;font-weight:700;margin-bottom:14px;}
.split-body p{color:var(--text-2);font-size:15px;margin-bottom:14px;}
.tick-list li{
  position:relative;
  padding-left:24px;
  margin-bottom:10px;
  font-size:14.5px;
  color:#CFEDEA;
}
.tick-list li::before{
  content:"";
  position:absolute;
  left:2px;top:9px;
  width:9px;height:9px;
  border-left:2px solid var(--primary);
  border-bottom:2px solid var(--primary);
  transform:rotate(-45deg);
}

/* ============ FAQ ============ */
.faq-acc{
  --bs-accordion-bg:transparent;
  --bs-accordion-border-color:transparent;
  --bs-accordion-color:var(--text);
  --bs-accordion-btn-color:var(--text);
  --bs-accordion-btn-bg:transparent;
  --bs-accordion-active-color:var(--primary);
  --bs-accordion-active-bg:rgba(0,229,199,.05);
  --bs-accordion-btn-focus-box-shadow:none;
  --bs-accordion-body-padding-x:0;
  --bs-accordion-body-padding-y:0;
  background:transparent;
  border-radius:0;
}
.faq-acc .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
}
.faq-acc .accordion-item:first-of-type{border-top:1px solid var(--line);}
.faq-acc .accordion-button{
  position:relative;
  padding:20px 44px 20px 18px;
  font-size:16.5px;
  font-weight:600;
  border-radius:0;
  box-shadow:none;
}
.faq-acc .accordion-button::before{
  content:"";
  position:absolute;
  left:0;top:16px;bottom:16px;
  width:3px;
  border-radius:2px;
  background:var(--primary);
  opacity:0;
  transition:opacity var(--ease);
}
.faq-acc .accordion-button:not(.collapsed){
  background:rgba(0,229,199,.05);
  color:var(--primary);
  box-shadow:none;
}
.faq-acc .accordion-button:not(.collapsed)::before{opacity:1;}
.faq-acc .accordion-button::after{
  content:"";
  width:10px;height:10px;
  margin-left:auto;
  background-image:none;
  border-right:2px solid var(--text-2);
  border-bottom:2px solid var(--text-2);
  transform:rotate(45deg);
  transition:transform var(--ease),border-color var(--ease);
  flex-shrink:0;
}
.faq-acc .accordion-button:not(.collapsed)::after{
  transform:rotate(-135deg);
  border-color:var(--primary);
}
.faq-acc .accordion-body{
  padding:0 44px 20px 18px;
  font-size:14.5px;
  line-height:1.85;
  color:var(--text-2);
}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 44px;align-items:start;}

/* ============ CTA 表单 ============ */
.cta-band{
  background:linear-gradient(180deg, rgba(0,229,199,.06), rgba(7,16,22,0) 60%), var(--bg-2);
  border-top:1px solid var(--line);
}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;}
.cta-points li{
  display:flex;
  gap:14px;
  padding:16px 0;
  border-bottom:1px dashed var(--line);
  font-size:15px;
  color:var(--text-2);
}
.cta-points li:last-child{border-bottom:none;}
.cta-points .num{
  font-family:var(--font-num);
  font-size:13px;
  color:var(--primary);
  letter-spacing:.08em;
  padding-top:3px;
}
.form-card{
  padding:28px;
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow);
  position:relative;
  overflow:hidden;
}
.form-card::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  background:linear-gradient(90deg, rgba(0,229,199,.85), rgba(0,229,199,0));
}
.form-card h3{font-size:18px;font-weight:700;margin-bottom:6px;}
.form-card .hint{font-size:13px;color:var(--text-3);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;color:var(--text-2);margin-bottom:7px;}
.field .req{color:var(--amber);margin-left:2px;}
.form-control,.form-select{
  width:100%;
  padding:12px 14px;
  font-size:15px;
  color:var(--text);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:var(--r-input);
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.form-control::placeholder{color:var(--text-3);}
.form-control:focus,.form-select:focus{
  background:rgba(255,255,255,.06);
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(0,229,199,.16), 0 0 18px rgba(0,229,199,.18);
  color:var(--text);
  outline:none;
}
.form-select option{background:#0E2028;color:var(--text);}
textarea.form-control{resize:vertical;min-height:96px;}
.form-card .btn-main{width:100%;margin-top:6px;}
.form-note{font-size:12.5px;color:var(--text-3);margin-top:12px;}
.form-card.has-error .form-control{border-color:var(--amber);box-shadow:0 0 0 3px rgba(255,176,32,.12);}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  background:var(--bg);
  padding:64px 0 28px;
}
.site-footer::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  background:linear-gradient(90deg, rgba(0,229,199,0), rgba(0,229,199,.8), rgba(0,229,199,0));
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:var(--text);
  margin-bottom:14px;
}
.footer-brand svg{width:24px;height:24px;}
.footer-brand i{font-style:normal;color:var(--primary);}
.footer-brand:hover{color:var(--text);}
.footer-desc{font-size:14px;color:var(--text-2);line-height:1.8;max-width:340px;margin-bottom:18px;}
.footer-anchors{display:flex;flex-wrap:wrap;gap:8px;}
.footer-anchors a{
  font-size:13px;
  color:var(--text-2);
  padding:5px 12px;
  border:1px solid var(--line);
  border-radius:999px;
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.footer-anchors a:hover{color:var(--primary);border-color:var(--glass-line);background:rgba(0,229,199,.06);}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.04em;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:var(--text-3);}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  font-size:12.5px;
  color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (min-width:992px){
  .nav-collapse{
    display:flex !important;
    align-items:center;
    gap:20px;
    width:100%;
  }
}
@media (max-width:1199.98px){
  .page-hero h1{font-size:38px;}
}
@media (max-width:991.98px){
  .sec{padding:72px 0;}
  .nav-collapse{
    position:absolute;
    left:0;right:0;
    top:100%;
    padding:10px 16px 20px;
    background:rgba(7,16,22,.98);
    backdrop-filter:blur(14px) saturate(140%);
    -webkit-backdrop-filter:blur(14px) saturate(140%);
    border-bottom:1px solid var(--glass-line);
    box-shadow:0 24px 40px -24px rgba(0,0,0,.95);
    max-height:calc(100vh - 72px);
    overflow-y:auto;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:2px;margin-left:0;}
  .nav-link-x{
    padding:13px 12px;
    font-size:16px;
    border-left:3px solid transparent;
    border-radius:0 8px 8px 0;
  }
  .nav-link-x.active{
    border-left-color:var(--primary);
    background:rgba(0,229,199,.06);
    color:var(--primary);
  }
  .nav-link-x.active::after{display:none;}
  .nav-cta{width:100%;margin-top:14px;padding:13px 18px;font-size:15px;}
  .page-hero{min-height:300px;padding:44px 0 40px;}
  .page-hero h1{font-size:31px;}
  .metric-grid{grid-template-columns:1fr 1fr;}
  .check-grid{grid-template-columns:1fr;}
  .compare-grid{grid-template-columns:1fr;}
  .compare-mid{height:1px;background:linear-gradient(90deg, rgba(0,229,199,0), rgba(0,229,199,.6), rgba(0,229,199,0));}
  .split-grid{grid-template-columns:1fr;gap:28px;}
  .faq-grid{grid-template-columns:1fr;gap:0;}
  .cta-grid{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-desc{max-width:none;}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  body{font-size:15px;}
  .sec{padding:56px 0;}
  .sec-head{margin-bottom:32px;}
  .sec-title{font-size:23px;}
  .brand{font-size:15.5px;}
  .brand svg{width:22px;height:22px;}
  .page-hero h1{font-size:27px;}
  .hero-sub{font-size:15px;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .metric-grid{grid-template-columns:1fr;gap:14px;}
  .metric-num{font-size:36px;}
  .compare-col{padding:22px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;font-size:12px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .metric-card:hover,.check-item:hover,.split-media:hover img{transform:none;}
}

/* roulang page: category2 */
:root{
  --bg:#071016;
  --bg-2:#0B1A21;
  --card:#0E2028;
  --brand:#00E5C7;
  --brand-soft:rgba(0,229,199,.12);
  --amber:#FFB020;
  --violet:#6C5CE7;
  --text:#E6F1F2;
  --muted:#92A8AC;
  --dim:#6F8589;
  --line:rgba(255,255,255,.08);
  --glass-border:rgba(0,229,199,.18);
  --r-card:14px;
  --r-glass:16px;
  --r-btn:12px;
  --r-input:10px;
  --r-img:12px;
  --r-tag:6px;
  --shadow:0 0 0 1px rgba(0,229,199,.10), 0 18px 40px -20px rgba(0,0,0,.75);
  --shadow-hover:0 0 0 1px rgba(0,229,199,.26), 0 0 24px rgba(0,229,199,.20), 0 18px 40px -20px rgba(0,0,0,.8);
  --ease:200ms ease-out;
  --font-num:"Barlow Semi Condensed","DIN Alternate",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease)}
a:hover{color:var(--brand)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.02em;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:rgba(0,229,199,.28)}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

.container{padding-left:16px;padding-right:16px}
@media (min-width:992px){.container{padding-left:24px;padding-right:24px}}
@media (min-width:1200px){.container{max-width:1200px}}
@media (min-width:1400px){.container{max-width:1200px}}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,16,22,.78);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease);
}
.site-header.scrolled{background:rgba(7,16,22,.94);border-bottom-color:var(--line)}
.site-header.scrolled::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,rgba(0,229,199,0),rgba(0,229,199,.7),rgba(0,229,199,0));
}
.site-header .container{position:relative}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand svg{width:26px;height:26px}
.brand b{font-size:17.5px;font-weight:700;color:var(--text);letter-spacing:.02em}
.brand b i{font-style:normal;color:var(--brand)}
.nav-toggle{
  width:42px;height:38px;border:1px solid var(--line);border-radius:10px;background:rgba(255,255,255,.03);
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;padding:0;cursor:pointer;
}
.nav-toggle span{width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform var(--ease),opacity var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-list{list-style:none;display:flex;align-items:center;gap:6px;margin:0;padding:0}
.nav-link-x{
  position:relative;display:block;padding:8px 13px;font-size:15px;color:var(--muted);border-radius:8px;
}
.nav-link-x:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-link-x.active{color:var(--brand)}
.nav-link-x.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 12px rgba(0,229,199,.8);
}
.nav-cta{padding:10px 18px;font-size:14.5px}
@media (min-width:992px){
  .nav-collapse.collapse{display:flex!important;align-items:center;gap:20px;flex:1;justify-content:flex-end}
}
@media (max-width:991.98px){
  .nav-collapse{
    position:absolute;top:68px;left:0;right:0;
    background:var(--bg-2);
    border-bottom:1px solid var(--line);
    padding:14px 20px 22px;
    box-shadow:0 30px 50px -26px rgba(0,0,0,.95);
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:4px}
  .nav-link-x{padding:12px 14px;font-size:15.5px}
  .nav-link-x.active{background:var(--brand-soft);box-shadow:inset 3px 0 0 var(--brand)}
  .nav-link-x.active::after{display:none}
  .nav-cta{width:100%;margin-top:14px;justify-content:center;text-align:center}
}

/* ---------- 按钮 ---------- */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border:0;border-radius:var(--r-btn);
  background:var(--brand);color:#04241F;font-size:15px;font-weight:600;letter-spacing:.01em;
  box-shadow:0 0 0 1px rgba(0,229,199,.35), 0 0 22px rgba(0,229,199,.28);
  cursor:pointer;transition:transform var(--ease),box-shadow var(--ease),background var(--ease);
}
.btn-main:hover{background:#22F0D5;color:#04241F;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(0,229,199,.5), 0 0 30px rgba(0,229,199,.42)}
.btn-main:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  background:transparent;border:1px solid rgba(0,229,199,.45);color:var(--brand);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-ghost:hover{background:rgba(0,229,199,.10);color:var(--brand);transform:translateY(-2px);box-shadow:0 0 18px rgba(0,229,199,.18)}
.btn-ghost:active{transform:translateY(0)}
.link-more{
  color:var(--brand);font-size:14.5px;
  border-bottom:1px solid rgba(0,229,199,.5);padding-bottom:2px;
}
.link-more:hover{color:#4BFFE5;border-bottom-color:#4BFFE5;text-shadow:0 0 14px rgba(0,229,199,.5)}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;position:relative}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
@media (max-width:1199.98px){.section{padding:80px 0}}
@media (max-width:991.98px){.section{padding:64px 0}}
@media (max-width:575.98px){.section{padding:52px 0}}
.sec-head{margin-bottom:38px}
.sec-head h2{font-size:clamp(22px,2.2vw,29px)}
.sec-head p{margin-top:10px;color:var(--muted);font-size:15px;max-width:640px}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.16em;color:var(--brand);text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);box-shadow:0 0 8px rgba(0,229,199,.8)}
.glass{
  background:rgba(18,38,46,.55);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--glass-border);
  border-radius:var(--r-glass);
  position:relative;overflow:hidden;
  box-shadow:var(--shadow);
}
.glass::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(0,229,199,.85),rgba(0,229,199,0));
}
.badge-x{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:var(--r-tag);
  font-size:12.5px;line-height:1.7;
  background:var(--brand-soft);color:var(--brand);
}
.badge-violet{background:rgba(108,92,231,.16);color:#A99BFF}
.badge-amber{background:rgba(255,176,32,.14);color:var(--amber)}

/* ---------- 面包屑 ---------- */
.crumb{margin-bottom:26px}
.crumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0;font-size:13px;color:var(--dim)}
.crumb li{display:flex;align-items:center}
.crumb li:not(:last-child)::after{content:"›";margin-left:8px;color:var(--dim)}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb li[aria-current] span,.crumb li[aria-current]{color:var(--dim)}

/* ---------- Hero + 步骤流 ---------- */
.hero-flow{padding:64px 0 88px;position:relative;overflow:hidden}
.hero-flow::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(700px 380px at 12% 0%,rgba(0,229,199,.14),transparent 65%),
    radial-gradient(520px 320px at 88% 12%,rgba(108,92,231,.16),transparent 70%);
  pointer-events:none;
}
.hero-flow .container{position:relative;z-index:1}
.axis-panel h1{
  font-size:clamp(26px,2.9vw,36px);
  line-height:1.32;letter-spacing:.02em;
}
.hero-sub{margin-top:16px;color:var(--muted);font-size:16px;max-width:420px}
.axis-tag{margin-bottom:18px}
.axis-list{list-style:none;margin:26px 0 30px;padding:0;display:grid;gap:12px}
.axis-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--muted)}
.axis-list b{
  flex:0 0 auto;font-family:var(--font-num);font-size:13px;color:var(--brand);
  border:1px solid var(--glass-border);border-radius:8px;padding:1px 7px;
}
.hero-trust{margin-top:22px;font-size:13px;color:var(--dim);display:flex;flex-wrap:wrap;gap:6px 18px}
.hero-trust span{display:inline-flex;align-items:center;gap:6px}
.hero-trust span::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--brand);box-shadow:0 0 8px rgba(0,229,199,.9)}

.step-flow{list-style:none;position:relative;padding:6px 0 0}
.step-flow::before{
  content:"";position:absolute;left:19px;top:26px;bottom:26px;width:1px;
  background:linear-gradient(180deg,rgba(0,229,199,.75),rgba(0,229,199,.22),rgba(0,229,199,0));
}
.step-node{position:relative;display:flex;gap:18px;padding-bottom:22px}
.step-node:last-child{padding-bottom:0}
.step-no{
  position:relative;z-index:1;flex:0 0 40px;height:40px;border-radius:999px;
  display:grid;place-items:center;
  background:var(--card);border:1px solid var(--glass-border);
  font-family:var(--font-num);font-size:14.5px;color:var(--brand);
}
.step-body{
  flex:1;min-width:0;
  background:rgba(18,38,46,.5);
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px 20px;
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.step-node:hover .step-body{border-color:var(--glass-border);transform:translateY(-2px);box-shadow:0 0 22px rgba(0,229,199,.14)}
.step-body h3{font-size:17px;margin-bottom:6px}
.step-body p{font-size:14.5px;color:var(--muted)}
.step-body .badge-x{margin-top:10px}

/* ---------- 指标卡 ---------- */
.stat-card{padding:22px 24px;border-radius:var(--r-glass)}
.stat-card .stat-name{font-size:13px;color:var(--muted)}
.stat-value{display:flex;align-items:baseline;gap:6px;margin:8px 0 12px}
.stat-value b{font-family:var(--font-num);font-size:clamp(30px,3.2vw,40px);line-height:1;color:var(--text);font-weight:600}
.stat-value i{font-style:normal;font-size:13px;color:var(--dim)}
.stat-foot{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);
}
.stat-up{color:var(--brand)}
.stat-warn{color:var(--amber)}

/* ---------- 双列清单 ---------- */
.check-item{
  display:flex;gap:14px;align-items:flex-start;
  padding:18px 20px;border-radius:var(--r-card);
  background:rgba(18,38,46,.45);
  border:1px solid var(--line);
  transition:border-color var(--ease),transform var(--ease);
}
.check-item:hover{border-color:var(--glass-border);transform:translateY(-2px)}
.check-ico{
  flex:0 0 34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:var(--brand-soft);border:1px solid var(--glass-border);
}
.check-ico svg{width:17px;height:17px}
.check-item h3{font-size:16px;margin-bottom:4px}
.check-item p{font-size:14px;color:var(--muted)}

/* ---------- 对照 ---------- */
.compare-box{position:relative;padding:6px 0}
.compare-col{padding:26px 26px 22px;border-radius:var(--r-glass);height:100%}
.compare-col h3{font-size:17px;display:flex;align-items:center;gap:10px;margin-bottom:16px}
.compare-col h3 span{width:8px;height:8px;border-radius:50%;background:var(--dim)}
.compare-col.ok h3 span{background:var(--brand);box-shadow:0 0 10px rgba(0,229,199,.9)}
.compare-col.bad h3 span{background:var(--amber);box-shadow:0 0 10px rgba(255,176,32,.8)}
.compare-col ul{list-style:none;display:grid;gap:12px}
.compare-col li{display:flex;gap:10px;font-size:14.5px;line-height:1.65}
.compare-col.bad li{color:var(--muted)}
.compare-col.ok li{color:var(--text)}
.compare-col li em{font-style:normal;color:var(--amber);font-family:var(--font-num)}
.compare-col.ok li em{color:var(--brand)}
.seam{width:1px;background:linear-gradient(180deg,transparent,rgba(0,229,199,.7),transparent);align-self:stretch;box-shadow:0 0 14px rgba(0,229,199,.5)}
@media (max-width:991.98px){.seam{display:none}}

/* ---------- 图文 ---------- */
.figure-card{
  border-radius:var(--r-glass);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);position:relative;
}
.figure-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform 300ms ease-out}
.figure-card:hover img{transform:scale(1.03)}
.figure-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,16,22,.05),rgba(7,16,22,.6));
  pointer-events:none;
}
.tick-list{list-style:none;display:grid;gap:14px;margin-top:20px}
.tick-list li{display:flex;gap:12px;font-size:15px;color:var(--muted)}
.tick-list li b{
  flex:0 0 22px;height:22px;border-radius:6px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-family:var(--font-num);
  border:1px solid var(--glass-border);margin-top:2px;
}
.lead-sm{color:var(--muted);font-size:15px;margin-top:12px;max-width:520px}

/* ---------- FAQ ---------- */
.faq-x .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.faq-x .accordion-item:first-child{border-top:1px solid var(--line)}
.faq-x .accordion-button{
  background:transparent;color:var(--text);
  font-size:16px;font-weight:600;line-height:1.55;
  padding:18px 44px 18px 16px;border-radius:0;
  box-shadow:none!important;
  transition:background var(--ease),color var(--ease);
}
.faq-x .accordion-button:hover{color:var(--brand);background:rgba(0,229,199,.04)}
.faq-x .accordion-button:not(.collapsed){
  color:var(--brand);background:rgba(0,229,199,.05);
  box-shadow:inset 3px 0 0 var(--brand)!important;
}
.faq-x .accordion-button::after{display:none}
.faq-x .acc-ico{
  width:9px;height:9px;margin-left:auto;
  border-right:2px solid currentColor;border-bottom:2px solid currentColor;
  transform:rotate(45deg);transition:transform var(--ease);flex:0 0 auto;
}
.faq-x .accordion-button:not(.collapsed) .acc-ico{transform:rotate(-135deg)}
.faq-x .accordion-body{padding:4px 20px 20px 16px;color:var(--muted);font-size:14.5px;line-height:1.8}

/* ---------- CTA / 表单 ---------- */
.cta-panel{padding:34px 32px;border-radius:var(--r-glass);height:100%}
.cta-panel h2{font-size:clamp(21px,2vw,26px)}
.form-card{padding:28px 26px 26px;border-radius:var(--r-glass)}
.form-card label{display:block;font-size:13.5px;color:var(--muted);margin-bottom:8px}
.form-card .field{margin-bottom:16px}
.form-x{
  width:100%;padding:11px 14px;border-radius:var(--r-input);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--text);font-size:15px;outline:none;
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.form-x::placeholder{color:var(--dim)}
.form-x:focus{border-color:rgba(0,229,199,.6);box-shadow:0 0 0 3px rgba(0,229,199,.16), 0 0 18px rgba(0,229,199,.18);background:rgba(255,255,255,.06)}
select.form-x{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 50%,calc(100% - 14px) 50%;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
textarea.form-x{min-height:96px;resize:vertical}
.form-tip{margin-top:14px;font-size:13.5px;color:var(--brand);opacity:0;transition:opacity var(--ease)}
.form-tip.show{opacity:1}
.form-note{font-size:12.5px;color:var(--dim);margin-top:12px}
.err-msg{display:none;font-size:12.5px;color:var(--amber);margin-top:6px}
.field.has-err .form-x{border-color:rgba(255,176,32,.7);box-shadow:0 0 0 3px rgba(255,176,32,.12)}
.field.has-err .err-msg{display:block}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-2);
  padding:64px 0 26px;position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(0,229,199,0),rgba(0,229,199,.65),rgba(0,229,199,0));
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr;gap:30px}}
@media (max-width:575.98px){.footer-grid{grid-template-columns:1fr}}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand svg{width:24px;height:24px}
.footer-brand span{font-size:16.5px;font-weight:700;color:var(--text)}
.footer-brand span i{font-style:normal;color:var(--brand)}
.footer-desc{font-size:13.5px;color:var(--muted);max-width:360px;line-height:1.8}
.footer-anchors{display:flex;flex-wrap:wrap;gap:8px 16px;margin-top:18px}
.footer-anchors a{font-size:13px;color:var(--dim)}
.footer-anchors a:hover{color:var(--brand)}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col a{font-size:13.5px;color:var(--muted)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:12.5px;color:var(--dim);
}
@media (max-width:575.98px){
  .btn-main,.btn-ghost{width:100%}
  .footer-bottom{flex-direction:column}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category3 */
:root{
  --bg:#071016;
  --bg-2:#0B1A21;
  --bg-3:#0E2028;
  --main:#00E5C7;
  --main-soft:rgba(0,229,199,.10);
  --main-line:rgba(0,229,199,.18);
  --main-line-strong:rgba(0,229,199,.30);
  --amber:#FFB020;
  --violet:#6C5CE7;
  --text:#E6F1F2;
  --text-2:#92A8AC;
  --text-3:#6F8589;
  --line:rgba(255,255,255,.08);
  --glass:rgba(18,38,46,.55);
  --r-card:14px;
  --r-glass:16px;
  --r-btn:12px;
  --r-input:10px;
  --r-img:12px;
  --r-tag:6px;
  --shadow:0 0 0 1px rgba(0,229,199,.10), 0 18px 40px -20px rgba(0,0,0,.75);
  --shadow-hover:0 0 0 1px rgba(0,229,199,.24), 0 0 24px rgba(0,229,199,.20), 0 18px 40px -20px rgba(0,0,0,.8);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Barlow Semi Condensed","DIN Alternate",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(900px 520px at 12% -6%, rgba(0,229,199,.10), transparent 62%),
    radial-gradient(700px 460px at 92% 4%, rgba(108,92,231,.10), transparent 60%),
    linear-gradient(180deg,#071016 0%,#071016 100%);
}
a{color:var(--main);text-decoration:none;transition:color .2s ease-out,opacity .2s ease-out;}
a:hover{color:#5cffe6;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--main);outline-offset:2px;border-radius:4px;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
h1,h2,h3,h4{color:var(--text);margin:0;font-weight:700;letter-spacing:.02em;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;position:relative;z-index:1;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(7,16,22,.72);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .25s ease-out,border-color .25s ease-out;
}
.site-header.is-scrolled{
  background:rgba(7,16,22,.94);
  border-bottom:1px solid var(--main-line);
}
.nav-inner{display:flex;align-items:center;gap:24px;min-height:70px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-size:17px;letter-spacing:.02em;flex:0 0 auto;}
.brand svg{width:26px;height:26px;flex:0 0 auto;}
.brand b{font-weight:700;}
.brand b i{font-style:normal;color:var(--main);}
.brand:hover{color:var(--text);}
.nav-list{display:flex;align-items:center;gap:6px;margin:0;padding:0;}
.nav-link-x{
  display:block;position:relative;
  padding:10px 14px;
  font-size:15px;color:var(--text-2);
  border-radius:var(--r-tag);
  transition:color .2s ease-out,background .2s ease-out;
}
.nav-link-x:hover{color:var(--text);background:rgba(255,255,255,.04);}
.nav-link-x.active{color:var(--main);}
.nav-link-x.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--main);border-radius:2px;
  box-shadow:0 0 10px rgba(0,229,199,.7);
}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 18px;
  background:var(--main);color:#04191a;font-weight:700;font-size:15px;
  border:none;border-radius:var(--r-btn);
  box-shadow:0 0 0 1px rgba(0,229,199,.35), 0 10px 26px -12px rgba(0,229,199,.75);
  transition:transform .18s ease-out,filter .18s ease-out,box-shadow .18s ease-out;
  cursor:pointer;
}
.btn-main:hover{color:#04191a;filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(0,229,199,.5),0 0 24px rgba(0,229,199,.42);}
.btn-main:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 18px;background:transparent;color:var(--main);font-weight:600;font-size:15px;
  border:1px solid var(--main-line-strong);border-radius:var(--r-btn);
  transition:background .2s ease-out,transform .18s ease-out,border-color .2s ease-out;
}
.btn-ghost:hover{background:var(--main-soft);color:var(--main);transform:translateY(-2px);border-color:var(--main);}
.nav-cta{white-space:nowrap;}
.nav-collapse{display:flex;align-items:center;gap:24px;flex:1;justify-content:flex-end;}
.nav-toggle{
  margin-left:auto;width:44px;height:40px;display:none;flex-direction:column;justify-content:center;gap:5px;
  background:transparent;border:1px solid var(--main-line);border-radius:var(--r-tag);padding:0 11px;
}
.nav-toggle span{display:block;height:2px;background:var(--main);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out;}

/* ---------- breadcrumb ---------- */
.crumb{padding:20px 0 0;font-size:13px;color:var(--text-3);}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"›";color:var(--text-3);}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--main);}
.crumb .now{color:var(--text-3);}

/* ---------- page hero ---------- */
.page-hero{padding:44px 0 8px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;margin-bottom:16px;
  font-size:12.5px;letter-spacing:.06em;color:var(--main);
  background:var(--main-soft);border:1px solid var(--main-line);border-radius:999px;
}
.eyebrow.violet{color:#b3aaff;background:rgba(108,92,231,.14);border-color:rgba(108,92,231,.32);}
.page-hero h1{font-size:clamp(28px,3.4vw,44px);letter-spacing:.02em;max-width:16em;}
.page-hero .lead{margin-top:16px;max-width:62ch;color:var(--text-2);font-size:16px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:20px;margin-top:22px;color:var(--text-3);font-size:13px;}
.hero-facts span{display:inline-flex;align-items:center;gap:7px;}
.hero-facts i{color:var(--main);font-size:15px;}

/* ---------- verdict strip ---------- */
.verdict{
  margin-top:28px;padding:18px 22px;
  background:linear-gradient(90deg,rgba(0,229,199,.09),rgba(0,229,199,.01));
  border-left:3px solid var(--main);
  border-radius:0 var(--r-card) var(--r-card) 0;
  display:flex;flex-wrap:wrap;gap:12px;align-items:flex-start;
}
.verdict-tag{
  flex:0 0 auto;padding:3px 10px;font-size:12px;border-radius:var(--r-tag);
  background:var(--main-soft);color:var(--main);border:1px solid var(--main-line);
}
.verdict p{flex:1 1 340px;color:var(--text-2);font-size:15px;}

/* ---------- sections ---------- */
.section{padding:72px 0 0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;}
.section-head h2{font-size:clamp(22px,2.3vw,30px);}
.section-head .sub{margin-top:10px;color:var(--text-2);font-size:14.5px;max-width:60ch;}
.link-more{font-size:14px;color:var(--main);border-bottom:1px solid rgba(0,229,199,.5);padding-bottom:2px;}
.link-more:hover{border-bottom-color:var(--main);}

/* ---------- table ---------- */
.table-wrap{
  overflow-x:auto;border:1px solid var(--main-line);border-radius:var(--r-glass);
  background:var(--glass);backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow);
}
.table-x{width:100%;min-width:840px;border-collapse:collapse;}
.table-x thead th{
  padding:16px;text-align:left;font-size:13.5px;font-weight:600;letter-spacing:.03em;
  color:var(--text);background:rgba(0,229,199,.07);
  border-bottom:1px solid var(--main-line-strong);white-space:nowrap;
}
.table-x tbody td{
  padding:15px 16px;font-size:14.5px;color:var(--text-2);
  border-bottom:1px solid var(--line);vertical-align:top;
}
.table-x tbody tr:nth-child(even){background:rgba(255,255,255,.02);}
.table-x tbody tr:last-child td{border-bottom:none;}
.table-x tbody tr:hover{background:rgba(0,229,199,.05);}
.table-x td:first-child{color:var(--text);font-weight:600;white-space:nowrap;}
.tag-ok{display:inline-flex;align-items:center;gap:5px;color:var(--main);font-weight:600;}
.tag-diff{display:inline-flex;align-items:center;gap:5px;color:var(--amber);font-weight:600;}
.tag-mid{display:inline-flex;align-items:center;gap:5px;color:#b3aaff;font-weight:600;}
.table-legend{display:flex;flex-wrap:wrap;gap:18px;margin-top:14px;font-size:13px;color:var(--text-3);}
.table-legend span{display:inline-flex;align-items:center;gap:6px;}

/* ---------- asym cards ---------- */
.glass-card{
  position:relative;height:100%;
  padding:26px;
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--main-line);
  border-radius:var(--r-glass);
  box-shadow:var(--shadow);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
  overflow:hidden;
}
.glass-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(0,229,199,.85),rgba(0,229,199,0));
}
.glass-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--main-line-strong);}
.glass-card h3{font-size:18px;margin-bottom:12px;}
.glass-card p{color:var(--text-2);font-size:14.6px;}
.card-icon{
  width:42px;height:42px;display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;border-radius:var(--r-tag);
  background:var(--main-soft);border:1px solid var(--main-line);color:var(--main);font-size:20px;
}
.card-icon.violet{color:#b3aaff;background:rgba(108,92,231,.14);border-color:rgba(108,92,231,.3);}
.card-icon.amber{color:var(--amber);background:rgba(255,176,32,.12);border-color:rgba(255,176,32,.3);}
.card-list{margin-top:16px;display:grid;gap:10px;}
.card-list li{display:flex;gap:10px;font-size:14.3px;color:var(--text-2);line-height:1.7;}
.card-list li i{color:var(--main);font-size:15px;flex:0 0 auto;margin-top:4px;}
.card-list li b{color:var(--text);font-weight:600;}

/* ---------- side checklist ---------- */
.side-panel{
  height:100%;padding:24px;
  background:linear-gradient(180deg,rgba(108,92,231,.12),rgba(14,32,40,.6));
  border:1px solid rgba(108,92,231,.28);border-radius:var(--r-glass);
  box-shadow:var(--shadow);
}
.side-panel h3{font-size:17px;margin-bottom:8px;}
.side-panel .side-note{color:var(--text-3);font-size:13px;margin-bottom:16px;}
.check-list{display:grid;gap:12px;}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  padding:12px 14px;font-size:14px;color:var(--text-2);
  background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:var(--r-tag);
}
.check-list li span.num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  color:#b3aaff;font-weight:700;font-size:14px;flex:0 0 auto;
}
.side-panel .btn-ghost{margin-top:18px;width:100%;}

/* ---------- scenario grid ---------- */
.scenario-card{
  height:100%;padding:22px;
  background:var(--bg-3);border:1px solid var(--line);border-radius:var(--r-card);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.scenario-card:hover{transform:translateY(-3px);border-color:var(--main-line-strong);box-shadow:var(--shadow-hover);}
.scenario-card h3{font-size:16.5px;margin-bottom:10px;}
.scenario-card p{font-size:14.2px;color:var(--text-2);}
.scenario-card .chip{
  display:inline-block;margin-bottom:12px;padding:3px 10px;font-size:12px;
  border-radius:var(--r-tag);background:rgba(108,92,231,.16);color:#b3aaff;border:1px solid rgba(108,92,231,.3);
}
.cover-figure{margin:0;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--main-line);}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}
.cover-figure figcaption{padding:12px 16px;font-size:13px;color:var(--text-3);background:rgba(255,255,255,.02);}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{
  background:transparent;border:none;border-bottom:1px solid var(--line);
}
.faq-accordion .accordion-button{
  background:transparent;color:var(--text);font-size:15.5px;font-weight:600;
  padding:20px 44px 20px 16px;border-radius:0;box-shadow:none;
  transition:background .2s ease-out,color .2s ease-out;
}
.faq-accordion .accordion-button::after{
  content:"";position:absolute;right:16px;width:10px;height:10px;
  border-right:2px solid var(--main);border-bottom:2px solid var(--main);
  transform:rotate(45deg);transition:transform .22s ease-out;
  background-image:none;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--main);background:rgba(0,229,199,.05);
  box-shadow:inset 3px 0 0 var(--main);
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);}
.faq-accordion .accordion-button:focus{box-shadow:inset 3px 0 0 var(--main);outline:none;}
.faq-accordion .accordion-body{
  padding:4px 20px 22px 19px;color:var(--text-2);font-size:14.6px;line-height:1.85;
}

/* ---------- CTA form ---------- */
.cta-block{
  padding:34px 30px;
  background:linear-gradient(135deg,rgba(0,229,199,.08),rgba(14,32,40,.72) 55%);
  border:1px solid var(--main-line);border-radius:var(--r-glass);
  box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.cta-block::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(0,229,199,.9),rgba(0,229,199,0));
}
.cta-block h2{font-size:clamp(22px,2.2vw,28px);margin-bottom:12px;}
.cta-block .cta-sub{color:var(--text-2);font-size:14.8px;max-width:52ch;}
.cta-points{margin-top:22px;display:grid;gap:12px;}
.cta-points li{display:flex;gap:10px;font-size:14.4px;color:var(--text-2);}
.cta-points li i{color:var(--main);margin-top:4px;}
.form-card{
  padding:26px;
  background:rgba(18,38,46,.6);
  backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--main-line);border-radius:var(--r-glass);
  box-shadow:var(--shadow);position:relative;
}
.form-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(0,229,199,.9),rgba(0,229,199,0));
}
.field{margin-bottom:16px;}
.field label{display:block;margin-bottom:7px;font-size:13.5px;color:var(--text-2);}
.field label b{color:var(--amber);font-weight:600;}
.field input,.field select,.field textarea{
  width:100%;padding:11px 13px;
  background:rgba(255,255,255,.04);color:var(--text);
  border:1px solid var(--line);border-radius:var(--r-input);
  font-family:var(--font-cn);font-size:14.5px;line-height:1.6;
  transition:border-color .2s ease-out,box-shadow .2s ease-out,background .2s ease-out;
}
.field textarea{resize:vertical;min-height:96px;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--main);background:rgba(0,229,199,.05);
  box-shadow:0 0 0 3px rgba(0,229,199,.16);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--main) 50%),linear-gradient(135deg,var(--main) 50%,transparent 50%);background-position:calc(100% - 18px) 50%,calc(100% - 13px) 50%;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.field.error input,.field.error select{border-color:var(--amber);box-shadow:0 0 0 3px rgba(255,176,32,.14);}
.field .err-msg{display:none;margin-top:6px;font-size:12.5px;color:var(--amber);}
.field.error .err-msg{display:block;}
.form-note{margin-top:14px;font-size:12.5px;color:var(--text-3);}
.form-ok{
  display:none;margin-bottom:16px;padding:12px 14px;font-size:14px;
  color:var(--main);background:var(--main-soft);border:1px solid var(--main-line);border-radius:var(--r-tag);
}
.form-ok.show{display:block;}

/* ---------- footer ---------- */
.site-footer{
  margin-top:96px;padding-top:48px;
  background:var(--bg-2);
  border-top:1px solid var(--main-line);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:36px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:16px;color:var(--text);font-weight:700;}
.footer-brand svg{width:24px;height:24px;}
.footer-brand i{font-style:normal;color:var(--main);}
.footer-desc{margin-top:14px;font-size:13.8px;color:var(--text-2);max-width:38ch;line-height:1.8;}
.footer-anchors{margin-top:16px;display:flex;flex-wrap:wrap;gap:14px;}
.footer-anchors a{font-size:13.5px;color:var(--text-2);}
.footer-anchors a:hover{color:var(--main);}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:14px;letter-spacing:.03em;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:13.8px;color:var(--text-2);}
.footer-col a:hover{color:var(--main);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding:18px 0 26px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--text-3);
}

/* ---------- responsive ---------- */
@media (min-width:992px){
  .nav-collapse{display:flex !important;}
  .nav-collapse.collapse{display:flex !important;}
}
@media (max-width:1199.98px){
  .section{padding-top:64px;}
}
@media (max-width:991.98px){
  .nav-toggle{display:flex;}
  .nav-collapse{
    position:fixed;left:0;right:0;top:70px;z-index:1039;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:16px 20px 22px;
    background:rgba(7,16,22,.98);
    backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
    border-top:1px solid var(--main-line);
    max-height:calc(100vh - 70px);overflow-y:auto;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:4px;}
  .nav-link-x{padding:13px 10px;border-left:3px solid transparent;border-radius:0;}
  .nav-link-x.active{border-left-color:var(--main);background:rgba(0,229,199,.06);}
  .nav-link-x.active::after{display:none;}
  .nav-cta{width:100%;margin-top:10px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .section{padding-top:56px;}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  .page-hero{padding:32px 0 0;}
  .page-hero .lead{font-size:15.2px;}
  .section{padding-top:56px;}
  .glass-card,.side-panel,.form-card,.cta-block{padding:20px;}
  .site-footer{margin-top:64px;padding-top:36px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .verdict{padding:16px;}
  .btn-main,.btn-ghost{width:100%;}
  .hero-facts{gap:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transitions:none !important;}
  html{scroll-behavior:auto;}
}