/* roulang page: index */
:root{
  --bg-0:#070A12;
  --bg-1:#0C1120;
  --bg-2:#111829;
  --surface:rgba(255,255,255,.055);
  --surface-2:rgba(255,255,255,.035);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --primary:#2BE8C5;
  --primary-deep:#0FBFA0;
  --accent:#FFB13D;
  --violet:#7C5CFF;
  --t1:#EAF1F7;
  --t2:#9BAABC;
  --t3:#64748B;
  --r-card:18px;
  --r-panel:22px;
  --r-btn:12px;
  --shadow-1:0 8px 24px rgba(0,0,0,.35);
  --shadow-2:0 14px 36px rgba(0,0,0,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body.app-body{
  margin:0;
  padding:0 0 72px;
  background:var(--bg-0);
  color:var(--t1);
  font-family:"Noto Sans SC","HarmonyOS Sans SC",system-ui,-apple-system,"Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.app-body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(620px 380px at 82% -6%, rgba(43,232,197,.14), transparent 70%),
    radial-gradient(560px 420px at 4% 22%, rgba(124,92,255,.12), transparent 72%);
}
body.app-body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  opacity:.045;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:24px 24px;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.wrap{position:relative;z-index:1;max-width:1200px;margin:0 auto;padding:0 clamp(16px,4vw,32px)}
.section{padding:clamp(56px,8vw,104px) 0;position:relative;z-index:1}
.section--alt{background:linear-gradient(180deg,rgba(12,17,32,0),rgba(12,17,32,.85) 18%,rgba(12,17,32,.85) 82%,rgba(12,17,32,0))}

.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.14em;color:var(--primary);text-transform:uppercase;font-weight:600}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(43,232,197,.9)}
.h2{font-size:clamp(22px,2.6vw,34px);font-weight:700;line-height:1.35;letter-spacing:.01em;margin-top:12px}
.h3{font-size:17px;font-weight:600;line-height:1.5}
.lead{font-size:15.5px;line-height:1.85;color:var(--t2);margin-top:14px;max-width:66ch}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary);font-weight:600;transition:color .22s var(--ease)}
.text-link svg{transition:transform .22s var(--ease)}
.text-link:hover svg{transform:translateX(3px)}
.text-link:hover{color:#5ff5d9}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);padding:12px 22px;font-size:14.5px;font-weight:600;cursor:pointer;border:1px solid transparent;transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);white-space:nowrap}
.btn-primary{background:linear-gradient(180deg,#3ff0cf,#22d9b6);color:#04140F;box-shadow:0 0 0 1px rgba(43,232,197,.35),0 10px 30px rgba(43,232,197,.25)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(43,232,197,.5),0 14px 34px rgba(43,232,197,.32)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--t1)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:9px 16px;font-size:13.5px}

.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;font-size:12px;font-weight:600;background:rgba(43,232,197,.12);color:var(--primary);border:1px solid rgba(43,232,197,.22);line-height:1.6}
.badge--amber{background:rgba(255,177,61,.13);color:var(--accent);border-color:rgba(255,177,61,.28)}

/* ============ header ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(7,10,18,.72);border-bottom:1px solid transparent;transition:background .22s var(--ease),border-color .22s var(--ease),backdrop-filter .22s var(--ease)}
.site-header.scrolled{background:rgba(7,10,18,.88);backdrop-filter:blur(14px) saturate(120%);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:16.5px;font-weight:700;letter-spacing:.02em;color:var(--t1)}
.brand-mark{width:32px;height:32px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(160deg,rgba(43,232,197,.22),rgba(43,232,197,.05));border:1px solid rgba(43,232,197,.4);box-shadow:0 0 18px rgba(43,232,197,.22)}
.brand-mark svg{width:17px;height:17px;stroke:var(--primary);fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-link{position:relative;font-size:14.5px;color:var(--t2);padding:8px 0;transition:color .22s var(--ease);font-weight:500}
.nav-link:hover{color:var(--t1)}
.nav-link.active{color:var(--t1);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(43,232,197,.6)}
.header-actions{display:flex;align-items:center;gap:16px}
.header-quiet{font-size:14px;color:var(--t2);transition:color .22s var(--ease)}
.header-quiet:hover{color:var(--primary)}
@media (max-width:1023px){
  .nav-links{display:none}
  .header-quiet{display:none}
}

/* ============ hero ============ */
.hero{padding:clamp(40px,6vw,78px) 0 clamp(48px,7vw,92px);position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,4vw,56px);align-items:center}
.hero h1{font-size:clamp(28px,4.2vw,52px);font-weight:700;line-height:1.25;letter-spacing:.01em;margin-top:18px}
.hero h1 .hl{color:var(--primary);text-shadow:0 0 28px rgba(43,232,197,.35)}
.hero-sub{font-size:clamp(15.5px,1.6vw,18px);line-height:1.8;color:var(--t2);margin-top:18px;max-width:34em}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{display:flex;flex-wrap:wrap;gap:clamp(22px,4vw,46px);margin-top:38px;padding-top:26px;border-top:1px solid var(--line)}
.stat-num{font-size:clamp(26px,3.2vw,34px);font-weight:700;letter-spacing:.02em;color:var(--t1);font-variant-numeric:tabular-nums;line-height:1.1}
.stat-num span{font-size:.5em;color:var(--t3);font-weight:600;margin-left:4px;letter-spacing:0}
.stat-label{font-size:13px;color:var(--t3);margin-top:6px}
.hero-visual{position:relative;border-radius:var(--r-panel);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-2);aspect-ratio:16/11;background:var(--bg-2)}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,10,18,.12) 25%,rgba(7,10,18,.82) 100%)}
.hero-float{position:absolute;left:16px;right:16px;bottom:16px;z-index:2;padding:15px 17px;border-radius:14px;background:linear-gradient(160deg,rgba(255,255,255,.09),rgba(255,255,255,.03));border:1px solid rgba(255,255,255,.15);backdrop-filter:blur(14px) saturate(120%);box-shadow:inset 0 1px 0 rgba(255,255,255,.14),0 0 0 1px rgba(43,232,197,.16),0 12px 32px rgba(0,0,0,.4)}
.hero-float-row{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--t2)}
.hero-float-row strong{color:var(--t1);font-weight:600;font-size:13.5px}
.dot-live{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(43,232,197,.16);margin-right:7px}
.hero-float-bar{margin-top:12px;height:4px;border-radius:999px;background:rgba(255,255,255,.10);overflow:hidden}
.hero-float-bar i{display:block;height:100%;width:82%;border-radius:999px;background:linear-gradient(90deg,var(--primary-deep),var(--primary));box-shadow:0 0 12px rgba(43,232,197,.6)}
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr}
  .hero-visual{aspect-ratio:16/10;order:2}
}

/* ============ steps ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative;margin-top:8px}
.step{position:relative;padding:24px 22px;border-radius:var(--r-card);background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.025));border:1px solid var(--line);box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow-1);transition:transform .22s var(--ease),border-color .22s var(--ease)}
.step:hover{transform:translateY(-2px);border-color:var(--line-strong)}
.step-num{font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--primary);font-variant-numeric:tabular-nums}
.step h3{font-size:17px;font-weight:600;margin-top:10px}
.step p{font-size:14px;color:var(--t2);margin-top:8px;line-height:1.75}
.step::after{content:"";position:absolute;top:50%;right:-24px;width:24px;height:1px;background:linear-gradient(90deg,rgba(43,232,197,.75),rgba(43,232,197,0));box-shadow:0 0 8px rgba(43,232,197,.6)}
.step:last-child::after{display:none}
@media (max-width:860px){
  .steps{grid-template-columns:1fr}
  .step::after{display:none}
}

/* ============ feature grid ============ */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feat-card{position:relative;padding:24px;border-radius:var(--r-card);background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.028));border:1px solid var(--line);box-shadow:inset 0 1px 0 rgba(255,255,255,.07),var(--shadow-1);transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);display:flex;flex-direction:column}
.feat-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:inset 0 1px 0 rgba(255,255,255,.1),var(--shadow-2)}
.feat-card.big{grid-column:span 2;min-height:216px;padding:28px}
.feat-icon{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:rgba(43,232,197,.1);border:1px solid rgba(43,232,197,.24);margin-bottom:16px}
.feat-icon svg{width:21px;height:21px;stroke:var(--primary);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.feat-card h3{font-size:16.5px;font-weight:600;line-height:1.5}
.feat-card.big h3{font-size:19px}
.feat-card p{font-size:14px;color:var(--t2);margin-top:9px;line-height:1.75}
.feat-card .text-link{margin-top:auto;padding-top:16px}
@media (max-width:1023px){
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .feat-card.big{grid-column:span 2}
}
@media (max-width:639px){
  .feat-grid{grid-template-columns:1fr}
  .feat-card.big{grid-column:span 1}
}

/* ============ scenes ============ */
.scene-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}
.scene-tab{padding:9px 18px;border-radius:999px;font-size:14px;font-weight:500;color:var(--t2);background:rgba(255,255,255,.04);border:1px solid var(--line);cursor:pointer;transition:all .22s var(--ease)}
.scene-tab:hover{color:var(--t1);border-color:var(--line-strong)}
.scene-tab.active{background:var(--primary);color:#04140F;border-color:var(--primary);font-weight:600;box-shadow:0 0 0 1px rgba(43,232,197,.4),0 8px 22px rgba(43,232,197,.24)}
.scene-panel{display:none;border-radius:var(--r-panel);overflow:hidden;border:1px solid var(--line);background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));box-shadow:var(--shadow-1)}
.scene-panel.active{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);animation:fadeUp .3s var(--ease)}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.scene-media{position:relative;min-height:280px;background:var(--bg-2)}
.scene-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.scene-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,10,18,.05) 30%,rgba(7,10,18,.7))}
.scene-body{padding:clamp(24px,3.4vw,40px)}
.scene-body h3{font-size:clamp(18px,2vw,22px);font-weight:700}
.scene-body p{font-size:14.5px;color:var(--t2);margin-top:12px;line-height:1.85}
.scene-list{margin-top:20px;display:grid;gap:10px}
.scene-list li{display:flex;gap:10px;font-size:14px;color:var(--t2);line-height:1.7}
.scene-list svg{width:17px;height:17px;flex:0 0 17px;margin-top:4px;stroke:var(--primary);fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
@media (max-width:860px){
  .scene-panel.active{grid-template-columns:1fr}
  .scene-media{min-height:200px;position:relative}
  .scene-media img{position:relative;height:200px}
}

/* ============ cases ============ */
.case-rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 4px 20px;margin:0 -4px;scrollbar-width:thin}
.case-rail::-webkit-scrollbar{height:6px}
.case-rail::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:999px}
.case-card{flex:0 0 clamp(260px,30vw,340px);scroll-snap-align:start;border-radius:var(--r-card);overflow:hidden;background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.025));border:1px solid var(--line);box-shadow:var(--shadow-1);transition:transform .22s var(--ease),border-color .22s var(--ease)}
.case-card:hover{transform:translateY(-2px);border-color:var(--line-strong)}
.case-thumb{height:150px;position:relative;overflow:hidden}
.case-thumb img{width:100%;height:100%;object-fit:cover}
.case-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,10,18,0) 45%,rgba(7,10,18,.72))}
.case-body{padding:20px}
.case-body .who{font-size:13px;color:var(--t3)}
.case-quote{font-size:14.5px;color:var(--t1);line-height:1.75;margin-top:8px}
.case-metric{margin-top:16px;padding-top:14px;border-top:1px solid rgba(255,255,255,.07);display:flex;align-items:baseline;gap:8px}
.case-metric b{font-size:22px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.case-metric span{font-size:12.5px;color:var(--t3)}

/* ============ price ============ */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.price-card{position:relative;display:flex;flex-direction:column;padding:28px 24px;border-radius:var(--r-panel);background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));border:1px solid var(--line);box-shadow:var(--shadow-1);transition:transform .22s var(--ease),border-color .22s var(--ease)}
.price-card:hover{transform:translateY(-2px);border-color:var(--line-strong)}
.price-card.featured{border-color:rgba(43,232,197,.45);background:linear-gradient(160deg,rgba(43,232,197,.10),rgba(255,255,255,.025));box-shadow:0 0 0 1px rgba(43,232,197,.28),0 16px 40px rgba(0,0,0,.45)}
.price-badge{position:absolute;top:-12px;left:24px;padding:3px 12px;border-radius:999px;font-size:12px;font-weight:700;background:var(--accent);color:#1A1206;letter-spacing:.04em}
.price-name{font-size:15px;font-weight:600;color:var(--t1)}
.price-num{margin-top:14px;font-size:38px;font-weight:700;letter-spacing:.02em;line-height:1;font-variant-numeric:tabular-nums;color:var(--t1)}
.price-num small{font-size:14px;font-weight:500;color:var(--t3);margin-left:6px;letter-spacing:0}
.price-desc{font-size:13.5px;color:var(--t3);margin-top:10px;line-height:1.7}
.price-list{margin-top:20px;display:grid;gap:11px;flex:1}
.price-list li{display:flex;gap:9px;font-size:14px;color:var(--t2);line-height:1.65}
.price-list svg{width:16px;height:16px;flex:0 0 16px;margin-top:4px;stroke:var(--primary);fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.price-card .btn{margin-top:24px;width:100%}
@media (max-width:860px){
  .price-grid{grid-template-columns:1fr}
  .price-card.featured{order:-1}
}

/* ============ news ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{display:flex;flex-direction:column;padding:22px;border-radius:var(--r-card);background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.022));border:1px solid var(--line);box-shadow:var(--shadow-1);transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease)}
.news-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-2)}
.news-card.is-feature{grid-column:1/-1;display:grid;grid-template-columns:minmax(0,360px) minmax(0,1fr);padding:0;overflow:hidden}
.news-cover{position:relative;min-height:210px;background:var(--bg-2)}
.news-cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.news-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,10,18,.05) 40%,rgba(7,10,18,.65))}
.news-main{padding:26px 28px;display:flex;flex-direction:column;justify-content:center}
.news-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:12.5px;color:var(--t3);margin-bottom:10px}
.news-title{font-size:16px;font-weight:600;line-height:1.55;color:var(--t1);transition:color .22s var(--ease)}
.news-card.is-feature .news-title{font-size:clamp(18px,2.1vw,23px);line-height:1.45}
.news-card:hover .news-title{color:var(--primary)}
.news-excerpt{font-size:13.5px;color:var(--t2);line-height:1.75;margin-top:9px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card.is-feature .news-excerpt{-webkit-line-clamp:3;font-size:14.5px}
.news-foot{margin-top:auto;padding-top:16px}
.empty-state{padding:60px 24px;text-align:center;border-radius:var(--r-panel);border:1px dashed rgba(255,255,255,.16);background:rgba(255,255,255,.02)}
.empty-state svg{width:34px;height:34px;margin:0 auto 14px;stroke:var(--t3);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.empty-state p{font-size:14.5px;color:var(--t2)}
.empty-state .btn{margin-top:18px}
@media (max-width:900px){
  .news-grid{grid-template-columns:1fr}
  .news-card.is-feature{grid-template-columns:1fr}
  .news-cover{min-height:190px}
}

/* ============ faq ============ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{border-radius:var(--r-card);background:linear-gradient(160deg,rgba(255,255,255,.055),rgba(255,255,255,.022));border:1px solid var(--line);overflow:hidden;transition:border-color .22s var(--ease),background .22s var(--ease)}
.faq-item.open{border-color:rgba(43,232,197,.35)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;background:none;border:0;color:var(--t1);font-size:15.5px;font-weight:600;text-align:left;cursor:pointer;line-height:1.6;transition:color .22s var(--ease)}
.faq-q:hover{color:var(--primary)}
.faq-icon{flex:0 0 20px;width:20px;height:20px;position:relative;transition:transform .22s var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px}
.faq-icon::before{left:0;right:0;top:9px;height:2px}
.faq-icon::after{top:0;bottom:0;left:9px;width:2px}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s var(--ease)}
.faq-a-inner{padding:0 22px 20px 22px;font-size:14.5px;color:var(--t2);line-height:1.9;border-left:3px solid var(--primary);margin-left:0;padding-left:19px}

/* ============ cta band ============ */
.cta-band{position:relative;overflow:hidden;border-radius:var(--r-panel);padding:clamp(32px,5vw,56px);background:linear-gradient(140deg,rgba(43,232,197,.14),rgba(255,255,255,.03) 46%,rgba(124,92,255,.14));border:1px solid rgba(43,232,197,.3);box-shadow:0 0 0 1px rgba(43,232,197,.14),0 24px 60px rgba(0,0,0,.5)}
.cta-band::after{content:"";position:absolute;right:-80px;top:-90px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(43,232,197,.36),transparent 68%);filter:blur(18px);pointer-events:none}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.35}
.cta-band p{font-size:14.5px;color:var(--t2);margin-top:12px;max-width:46ch;line-height:1.8}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ footer ============ */
.site-footer{position:relative;z-index:1;background:var(--bg-1);border-top:1px solid var(--line);margin-top:clamp(40px,6vw,80px);padding:clamp(40px,6vw,64px) 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:clamp(24px,4vw,48px)}
.footer-brand p{font-size:13.5px;color:var(--t3);line-height:1.85;margin-top:14px;max-width:32ch}
.footer-title{font-size:13.5px;font-weight:600;color:var(--t1);letter-spacing:.04em;margin-bottom:14px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:13.5px;color:var(--t3);transition:color .22s var(--ease),transform .22s var(--ease);display:inline-block}
.footer-links a:hover{color:var(--primary);transform:translateX(2px)}
.footer-meta{font-size:13.5px;color:var(--t3);line-height:1.9}
.footer-meta strong{color:var(--t2);font-weight:500}
.footer-bottom{margin-top:clamp(28px,4vw,44px);padding-top:20px;border-top:1px solid rgba(255,255,255,.07);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:var(--t3)}
.footer-bottom a{color:var(--t3)}
.footer-bottom a:hover{color:var(--primary)}
@media (max-width:860px){
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr}
}

/* ============ mobile tab ============ */
.mobile-tab{display:none}
@media (max-width:767px){
  .mobile-tab{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:80;
    background:rgba(9,13,24,.92);backdrop-filter:blur(16px) saturate(120%);
    border-top:1px solid rgba(255,255,255,.12);
    padding-bottom:env(safe-area-inset-bottom);
    box-shadow:0 -8px 28px rgba(0,0,0,.5);
  }
  .mobile-tab a{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;padding:9px 2px 8px;font-size:10px;color:var(--t3);position:relative;transition:color .22s var(--ease)}
  .mobile-tab a svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
  .mobile-tab a.active{color:var(--primary)}
  .mobile-tab a.active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:26px;height:3px;border-radius:0 0 3px 3px;background:var(--primary);box-shadow:0 0 12px rgba(43,232,197,.8)}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --bg-0:#070A12;
  --bg-1:#0C1120;
  --bg-2:#111829;
  --surface:rgba(255,255,255,.055);
  --surface-2:rgba(255,255,255,.03);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --primary:#2BE8C5;
  --primary-deep:#0FBFA0;
  --accent:#FFB13D;
  --violet:#7C5CFF;
  --t1:#EAF1F7;
  --t2:#9BAABC;
  --t3:#64748B;
  --radius-card:18px;
  --radius-panel:22px;
  --radius-btn:12px;
  --radius-img:14px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 14px 36px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(43,232,197,.35),0 10px 30px rgba(43,232,197,.25);
  --ease:cubic-bezier(.2,.7,.3,1);
  --header-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t1);
  font-family:"Noto Sans SC","HarmonyOS Sans SC",system-ui,-apple-system,"Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(640px 420px at 10% -10%,rgba(43,232,197,.13),transparent 72%),
    radial-gradient(520px 380px at 94% 2%,rgba(124,92,255,.11),transparent 74%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:24px 24px;
  opacity:.35;
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 72%);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:clamp(16px,4vw,32px);
  padding-right:clamp(16px,4vw,32px);
  position:relative;
  z-index:1;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(7,10,18,.74);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:background .22s var(--ease),border-color .22s var(--ease);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:var(--header-h);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--t1);
  white-space:nowrap;
  transition:color .22s var(--ease);
}
.brand:hover{color:var(--primary)}
.brand-mark{
  display:grid;
  place-items:center;
  width:32px;
  height:32px;
  border-radius:10px;
  background:linear-gradient(160deg,rgba(43,232,197,.22),rgba(43,232,197,.06));
  border:1px solid rgba(43,232,197,.35);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.18);
  flex:none;
}
.brand-mark svg{
  width:18px;
  height:18px;
  fill:none;
  stroke:var(--primary);
  stroke-width:1.7;
  stroke-linejoin:round;
  stroke-linecap:round;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:2px;
  flex:1;
  justify-content:center;
}
.nav-link{
  position:relative;
  padding:8px 12px;
  font-size:14.5px;
  color:var(--t2);
  border-radius:10px;
  transition:color .22s var(--ease),background .22s var(--ease);
  white-space:nowrap;
}
.nav-link:hover{color:var(--t1);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--primary)}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 10px rgba(43,232,197,.8);
}
.header-actions{display:flex;align-items:center;gap:14px;flex:none}
.header-quiet{
  font-size:14px;
  color:var(--t2);
  transition:color .22s var(--ease);
}
.header-quiet:hover{color:var(--primary)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-primary{
  background:var(--primary);
  color:#04140F;
  box-shadow:var(--glow);
}
.btn-primary:hover{
  background:#3ff0d0;
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(43,232,197,.5),0 14px 34px rgba(43,232,197,.32);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(43,232,197,.4),0 6px 16px rgba(43,232,197,.22)}
.btn-ghost{
  background:rgba(255,255,255,.02);
  color:var(--t1);
  border-color:var(--line);
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:11px}

/* ---------- article head ---------- */
main{position:relative;z-index:1;display:block}
.page-head{
  padding-top:clamp(24px,3.4vw,40px);
  padding-bottom:4px;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--t3);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--t2);transition:color .22s var(--ease)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{opacity:.55}
.breadcrumb .current{
  color:var(--t3);
  max-width:min(280px,52vw);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.article-head{max-width:860px}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.01em;
  background:rgba(43,232,197,.12);
  color:var(--primary);
  border:1px solid rgba(43,232,197,.22);
  line-height:1.6;
}
.badge-accent{
  background:rgba(255,177,61,.12);
  color:var(--accent);
  border-color:rgba(255,177,61,.26);
}
.article-head h1{
  font-size:clamp(1.6rem,3vw,2.25rem);
  line-height:1.34;
  font-weight:700;
  letter-spacing:.01em;
  margin:16px 0 18px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  color:var(--t1);
}
.meta-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 20px;
  font-size:13px;
  color:var(--t3);
}
.meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-item svg{width:14px;height:14px;fill:none;stroke:var(--t3);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.meta-item strong{color:var(--t2);font-weight:600}
.meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.22);display:inline-block}

/* ---------- read tip ---------- */
.read-tip{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:16px 18px;
  margin-top:28px;
  max-width:860px;
  border-radius:16px;
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.read-tip .tip-icon{
  flex:none;
  width:34px;
  height:34px;
  display:grid;
  place-items:center;
  border-radius:11px;
  background:rgba(43,232,197,.12);
  border:1px solid rgba(43,232,197,.24);
}
.read-tip .tip-icon svg{width:17px;height:17px;fill:none;stroke:var(--primary);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.read-tip p{font-size:14px;line-height:1.75;color:var(--t2)}
.read-tip p strong{color:var(--t1);font-weight:600}

/* ---------- article body ---------- */
.article-wrap{
  max-width:760px;
  margin:0 auto;
}
.article-body{
  margin-top:34px;
  font-size:16.5px;
  line-height:1.95;
  color:#C6D2E0;
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.4em}
.article-body h2{
  position:relative;
  font-size:clamp(1.25rem,2.2vw,1.5rem);
  line-height:1.5;
  font-weight:700;
  color:var(--t1);
  margin:2.1em 0 .85em;
  padding-left:15px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.3em;
  bottom:.3em;
  width:3px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 12px rgba(43,232,197,.6);
}
.article-body h3{
  font-size:1.1rem;
  line-height:1.6;
  font-weight:600;
  color:var(--t1);
  margin:1.8em 0 .7em;
}
.article-body h4{
  font-size:1rem;
  font-weight:600;
  color:var(--t1);
  margin:1.5em 0 .6em;
}
.article-body a{
  color:var(--primary);
  border-bottom:1px solid rgba(43,232,197,.35);
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.article-body a:hover{border-bottom-color:var(--primary);color:#5cf5db}
.article-body strong{color:var(--t1);font-weight:600}
.article-body em{color:var(--t1);font-style:normal;font-weight:600}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.35em}
.article-body li{margin:.5em 0}
.article-body ul{list-style:none;padding-left:1.25em}
.article-body ul > li{position:relative}
.article-body ul > li::before{
  content:"";
  position:absolute;
  left:-1.1em;
  top:.78em;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 8px rgba(43,232,197,.7);
}
.article-body ol{list-style:decimal}
.article-body ol > li::marker{color:var(--primary);font-weight:600}
.article-body blockquote{
  margin:1.6em 0;
  padding:18px 22px;
  border-left:3px solid var(--primary);
  border-radius:0 14px 14px 0;
  background:rgba(255,255,255,.055);
  color:#D6E1ED;
  font-style:normal;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  max-width:100%;
  height:auto;
  margin:1.6em auto;
  border-radius:var(--radius-img);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.article-body figure{margin:1.6em 0}
.article-body figcaption{
  margin-top:9px;
  font-size:12px;
  line-height:1.6;
  color:var(--t3);
  text-align:center;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.6em 0;
  font-size:14.5px;
  display:block;
  overflow-x:auto;
  white-space:nowrap;
  border-radius:12px;
}
.article-body th,.article-body td{
  border:1px solid rgba(255,255,255,.12);
  padding:10px 14px;
  text-align:left;
}
.article-body th{background:rgba(255,255,255,.06);color:var(--t1);font-weight:600}
.article-body code{
  padding:2px 6px;
  border-radius:6px;
  background:rgba(255,255,255,.08);
  color:var(--primary);
  font-size:.9em;
}
.article-body pre{
  overflow-x:auto;
  padding:16px 18px;
  border-radius:14px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  margin:1.6em 0;
}
.article-body hr{border:none;border-top:1px solid var(--line);margin:2.2em 0}

/* ---------- empty state ---------- */
.empty-state{
  max-width:620px;
  margin:48px auto 0;
  padding:44px 28px;
  text-align:center;
  border-radius:var(--radius-panel);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.025));
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.empty-state .empty-icon{
  width:56px;
  height:56px;
  margin:0 auto 18px;
  display:grid;
  place-items:center;
  border-radius:16px;
  background:rgba(43,232,197,.10);
  border:1px solid rgba(43,232,197,.22);
}
.empty-state .empty-icon svg{width:26px;height:26px;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.empty-state h2{font-size:19px;font-weight:700;color:var(--t1);margin-bottom:10px}
.empty-state p{font-size:14px;color:var(--t2);margin-bottom:22px}

/* ---------- related ---------- */
.related{
  margin-top:clamp(48px,6vw,76px);
  padding-top:clamp(34px,5vw,54px);
  border-top:1px solid rgba(255,255,255,.07);
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
}
.section-head h2{
  font-size:clamp(1.25rem,2.4vw,1.55rem);
  font-weight:700;
  line-height:1.4;
  color:var(--t1);
}
.section-head p{font-size:14px;color:var(--t2);margin-top:8px;max-width:560px}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  transition:gap .22s var(--ease),color .22s var(--ease);
}
.text-link:hover{gap:10px;color:#5cf5db}
.text-link svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
  margin-top:30px;
}
.related-card{
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:22px;
  border-radius:var(--radius-card);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.related-card:hover{
  transform:translateY(-2px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-hover);
}
.related-card h3{
  font-size:16px;
  font-weight:600;
  line-height:1.55;
  color:var(--t1);
}
.related-card p{font-size:13.5px;line-height:1.7;color:var(--t2)}
.related-card .rc-foot{
  margin-top:auto;
  padding-top:12px;
  border-top:1px solid rgba(255,255,255,.07);
  font-size:12.5px;
  color:var(--t3);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
}
.related-card .rc-foot svg{width:14px;height:14px;fill:none;stroke:var(--t3);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:stroke .22s var(--ease),transform .22s var(--ease)}
.related-card:hover .rc-foot svg{stroke:var(--primary);transform:translateX(3px)}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  margin-top:clamp(52px,7vw,86px);
  padding:clamp(28px,4vw,46px);
  border-radius:var(--radius-panel);
  background:linear-gradient(140deg,rgba(43,232,197,.14),rgba(255,255,255,.03) 62%);
  border:1px solid rgba(43,232,197,.28);
  box-shadow:0 0 0 1px rgba(43,232,197,.08),0 18px 50px rgba(0,0,0,.42);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:30px;
  flex-wrap:wrap;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-90px;
  top:-110px;
  width:300px;
  height:300px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(43,232,197,.22),transparent 66%);
  pointer-events:none;
}
.cta-band .cta-copy{position:relative;z-index:1;max-width:620px}
.cta-band h2{font-size:clamp(1.25rem,2.6vw,1.7rem);font-weight:700;line-height:1.4;color:var(--t1)}
.cta-band p{margin-top:10px;font-size:14.5px;line-height:1.75;color:var(--t2)}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:clamp(56px,8vw,96px);
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding-top:clamp(40px,6vw,64px);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:clamp(30px,4vw,44px);
}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  line-height:1.8;
  color:var(--t2);
  max-width:320px;
}
.footer-title{
  font-size:14px;
  font-weight:700;
  color:var(--t1);
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{
  font-size:14px;
  color:var(--t2);
  transition:color .22s var(--ease),transform .22s var(--ease);
}
.footer-links a:hover{color:var(--primary);transform:translateX(2px)}
.footer-meta p{
  font-size:14px;
  line-height:1.8;
  color:var(--t2);
  margin-bottom:10px;
}
.footer-meta strong{color:var(--t1);font-weight:600}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:18px 0 24px;
  border-top:1px solid rgba(255,255,255,.07);
  font-size:12.5px;
  color:var(--t3);
}

/* ---------- mobile tabbar ---------- */
.tabbar{display:none}

@media (max-width:1024px){
  .nav-links{gap:0}
  .nav-link{padding:8px 9px;font-size:14px}
  .header-quiet{display:none}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand p{max-width:none}
}
@media (max-width:900px){
  .nav-links{display:none}
  .header-inner{gap:12px;justify-content:space-between}
  body{padding-bottom:76px}
  .tabbar{
    display:flex;
    position:fixed;
    left:0;
    right:0;
    bottom:0;
    z-index:70;
    background:rgba(7,10,18,.92);
    backdrop-filter:blur(16px) saturate(120%);
    -webkit-backdrop-filter:blur(16px) saturate(120%);
    border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .tabbar a{
    flex:1 1 0;
    display:flex;
    flex-direction:column;
    align-items:center;
    gap:4px;
    padding:9px 2px 8px;
    font-size:10px;
    line-height:1.3;
    color:var(--t3);
    position:relative;
    transition:color .22s var(--ease);
  }
  .tabbar a svg{
    width:21px;
    height:21px;
    fill:none;
    stroke:currentColor;
    stroke-width:1.6;
    stroke-linecap:round;
    stroke-linejoin:round;
  }
  .tabbar a:hover,.tabbar a:active{color:var(--primary)}
  .tabbar a.active{color:var(--primary)}
  .tabbar a.active::before{
    content:"";
    position:absolute;
    top:0;
    left:22%;
    right:22%;
    height:3px;
    border-radius:0 0 3px 3px;
    background:var(--primary);
    box-shadow:0 0 10px rgba(43,232,197,.75);
  }
}
@media (max-width:640px){
  .article-body{font-size:16px;line-height:1.9}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .read-tip{padding:14px 15px}
  .meta-bar{gap:8px 14px}
  .page-head{padding-top:20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
    --bg-0:#070A12;
    --bg-1:#0C1120;
    --bg-2:#111829;
    --surface:rgba(255,255,255,.05);
    --surface-2:rgba(255,255,255,.07);
    --line:rgba(255,255,255,.10);
    --line-strong:rgba(255,255,255,.18);
    --primary:#2BE8C5;
    --primary-deep:#0FBFA0;
    --accent:#FFB13D;
    --violet:#7C5CFF;
    --t1:#EAF1F7;
    --t2:#9BAABC;
    --t3:#64748B;
    --r-card:18px;
    --r-panel:22px;
    --r-btn:12px;
    --shadow-1:0 8px 24px rgba(0,0,0,.35);
    --shadow-2:0 14px 36px rgba(0,0,0,.45);
    --glow:0 0 0 1px rgba(43,232,197,.35),0 10px 30px rgba(43,232,197,.25);
    --ease:cubic-bezier(.2,.7,.3,1);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    background:var(--bg-0);
    color:var(--t1);
    font-family:"Noto Sans SC","HarmonyOS Sans SC",system-ui,-apple-system,"Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.85;
    letter-spacing:.005em;
    -webkit-font-smoothing:antialiased;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    z-index:0;
    background:
      radial-gradient(680px 420px at 12% -6%,rgba(43,232,197,.14),transparent 68%),
      radial-gradient(620px 420px at 92% 8%,rgba(124,92,255,.12),transparent 70%);
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0}
  ul,ol{padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
  .wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 clamp(16px,4vw,32px);position:relative;z-index:1}
  .section{padding:clamp(56px,8vw,96px) 0;position:relative;z-index:1}
  .section-alt{background:linear-gradient(180deg,rgba(12,17,32,.92),rgba(7,10,18,.5));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .section-head{max-width:720px;margin-bottom:clamp(28px,4vw,40px)}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12.5px;letter-spacing:.14em;color:var(--primary);
    padding:6px 12px;border-radius:999px;
    background:rgba(43,232,197,.10);border:1px solid rgba(43,232,197,.26);
  }
  .section-title{font-size:clamp(22px,2.6vw,34px);line-height:1.35;font-weight:700;margin-top:16px}
  .section-sub{color:var(--t2);font-size:15px;line-height:1.85;margin-top:12px;max-width:64ch}
  .u-tabular{font-variant-numeric:tabular-nums}

  /* ===== Header ===== */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(7,10,18,.82);
    border-bottom:1px solid transparent;
    transition:background .22s var(--ease),border-color .22s var(--ease),backdrop-filter .22s var(--ease);
  }
  .site-header.is-scrolled{
    background:rgba(7,10,18,.94);
    border-bottom-color:var(--line);
    backdrop-filter:blur(14px) saturate(120%);
    -webkit-backdrop-filter:blur(14px) saturate(120%);
  }
  .header-inner{display:flex;align-items:center;gap:24px;min-height:68px}
  .brand{
    display:inline-flex;align-items:center;gap:10px;
    font-weight:700;font-size:16.5px;letter-spacing:.02em;color:var(--t1);
    white-space:nowrap;
  }
  .brand-mark{
    width:30px;height:30px;flex:0 0 30px;display:grid;place-items:center;border-radius:9px;
    background:linear-gradient(160deg,rgba(43,232,197,.24),rgba(43,232,197,.06));
    border:1px solid rgba(43,232,197,.36);
    box-shadow:0 6px 18px rgba(43,232,197,.16);
  }
  .brand-mark svg{width:18px;height:18px;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
  .nav-links{display:flex;align-items:center;gap:2px;margin:0 auto}
  .nav-link{
    position:relative;padding:9px 12px;font-size:14.5px;color:var(--t2);border-radius:9px;
    transition:color .22s var(--ease),background .22s var(--ease);
    white-space:nowrap;
  }
  .nav-link:hover{color:var(--t1);background:rgba(255,255,255,.05)}
  .nav-link.active{color:var(--t1)}
  .nav-link.active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
    background:var(--primary);box-shadow:0 0 10px rgba(43,232,197,.65);
  }
  .header-actions{display:flex;align-items:center;gap:16px}
  .header-quiet{font-size:14px;color:var(--t2);transition:color .22s var(--ease)}
  .header-quiet:hover{color:var(--primary)}

  /* ===== Buttons ===== */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:var(--r-btn);font-weight:600;font-size:15px;line-height:1;
    padding:14px 24px;border:1px solid transparent;
    transition:transform .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
  }
  .btn:active{transform:translateY(0)}
  .btn-sm{padding:10px 16px;font-size:14px}
  .btn-primary{
    background:var(--primary);color:#04140F;
    box-shadow:0 0 0 1px rgba(43,232,197,.35),0 10px 30px rgba(43,232,197,.22);
  }
  .btn-primary:hover{transform:translateY(-2px);background:#39F2D0;box-shadow:0 0 0 1px rgba(43,232,197,.5),0 14px 36px rgba(43,232,197,.3)}
  .btn-ghost{background:transparent;border-color:var(--line);color:var(--t1)}
  .btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
  .link-arrow{color:var(--primary);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
  .link-arrow svg{transition:transform .22s var(--ease)}
  .link-arrow:hover svg{transform:translateX(3px)}

  /* ===== Hero ===== */
  .page-hero{
    position:relative;overflow:hidden;z-index:1;
    padding:clamp(28px,4vw,48px) 0 clamp(44px,6vw,76px);
    border-bottom:1px solid var(--line);
    background:
      linear-gradient(180deg,rgba(12,17,32,.6),rgba(7,10,18,0) 70%),
      url('/assets/images/backpic/back-1.webp') center right/cover no-repeat;
  }
  .page-hero::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background:
      linear-gradient(90deg,rgba(7,10,18,.96) 0%,rgba(7,10,18,.88) 46%,rgba(7,10,18,.55) 100%),
      linear-gradient(180deg,rgba(7,10,18,.3),rgba(7,10,18,.95));
  }
  .crumbs{
    display:flex;align-items:center;gap:8px;flex-wrap:wrap;
    font-size:13px;color:var(--t3);position:relative;z-index:2;margin-bottom:22px;
  }
  .crumbs a{color:var(--t2);transition:color .22s var(--ease)}
  .crumbs a:hover{color:var(--primary)}
  .crumbs .sep{color:var(--t3);opacity:.7}
  .crumbs .current{color:var(--t3)}
  .hero-grid{
    display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,4vw,56px);align-items:center;
    position:relative;z-index:2;
  }
  .hero-title{
    font-size:clamp(28px,4vw,46px);line-height:1.24;font-weight:700;letter-spacing:.01em;margin-top:18px;
  }
  .hero-title em{font-style:normal;color:var(--primary)}
  .hero-lead{font-size:clamp(15px,1.35vw,17px);line-height:1.9;color:var(--t2);margin-top:16px;max-width:58ch}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
  .hero-stats{display:flex;flex-wrap:wrap;gap:clamp(20px,4vw,44px);margin-top:34px}
  .stat-num{font-size:clamp(24px,3vw,32px);font-weight:700;letter-spacing:.02em;color:var(--t1);line-height:1.2}
  .stat-num span{font-size:13.5px;color:var(--t2);font-weight:500;margin-left:4px;letter-spacing:0}
  .stat-label{font-size:13px;color:var(--t3);margin-top:5px}

  .hero-visual{position:relative}
  .hero-shot{
    position:relative;border-radius:var(--r-panel);overflow:hidden;
    border:1px solid var(--line-strong);box-shadow:var(--shadow-2);
    background:var(--bg-2);
    aspect-ratio:16/10;
  }
  .hero-shot img{width:100%;height:100%;object-fit:cover}
  .hero-shot::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(7,10,18,0) 38%,rgba(7,10,18,.78));
  }
  .float-card{
    position:absolute;left:18px;bottom:18px;right:18px;
    display:flex;align-items:center;gap:14px;
    padding:14px 16px;border-radius:16px;
    background:linear-gradient(160deg,rgba(255,255,255,.09),rgba(255,255,255,.035));
    border:1px solid var(--line-strong);
    backdrop-filter:blur(14px) saturate(120%);
    -webkit-backdrop-filter:blur(14px) saturate(120%);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.12);
  }
  .dot-live{width:9px;height:9px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(43,232,197,.18);flex:0 0 9px}
  .float-title{font-size:14px;font-weight:600;line-height:1.4}
  .float-sub{font-size:12.5px;color:var(--t2);line-height:1.5;margin-top:2px}
  .float-badge{
    margin-left:auto;font-size:12px;padding:4px 10px;border-radius:999px;
    color:#04140F;background:var(--primary);font-weight:700;white-space:nowrap;
  }

  /* ===== Doc layout ===== */
  .doc-layout{display:grid;grid-template-columns:232px minmax(0,1fr);gap:clamp(28px,4vw,56px);align-items:start}
  .doc-aside{position:sticky;top:92px}
  .aside-title{font-size:12.5px;letter-spacing:.14em;color:var(--t3);margin-bottom:14px}
  .anchor-list{display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line);padding-left:14px}
  .anchor-list a{
    position:relative;font-size:14px;color:var(--t2);padding:8px 0;transition:color .22s var(--ease),transform .22s var(--ease);
  }
  .anchor-list a::before{
    content:"";position:absolute;left:-15px;top:14px;width:3px;height:0;border-radius:3px;
    background:var(--primary);transition:height .22s var(--ease);
  }
  .anchor-list a:hover{color:var(--t1);transform:translateX(2px)}
  .anchor-list a:hover::before,.anchor-list a.is-active::before{height:16px}
  .anchor-list a.is-active{color:var(--primary)}
  .aside-note{
    margin-top:24px;padding:16px;border-radius:14px;
    background:var(--surface);border:1px solid var(--line);
    font-size:13px;color:var(--t2);line-height:1.75;
  }
  .aside-note strong{color:var(--t1);font-weight:600}

  .doc-body h2{
    font-size:clamp(20px,2.2vw,26px);line-height:1.4;font-weight:700;
    padding-left:14px;position:relative;margin-top:clamp(32px,4vw,44px);
  }
  .doc-body h2:first-child{margin-top:0}
  .doc-body h2::before{
    content:"";position:absolute;left:0;top:.28em;width:3px;height:1.05em;border-radius:3px;
    background:var(--primary);box-shadow:0 0 10px rgba(43,232,197,.5);
  }
  .doc-body p{color:var(--t2);font-size:16px;line-height:1.9;margin-top:14px;max-width:68ch}
  .doc-body strong{color:var(--t1);font-weight:600}

  .point-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:22px}
  .point-card{
    padding:18px;border-radius:var(--r-card);
    background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
    border:1px solid var(--line);
    transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
  }
  .point-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-1)}
  .point-icon{
    width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
    background:rgba(43,232,197,.12);border:1px solid rgba(43,232,197,.3);margin-bottom:12px;
  }
  .point-icon svg{width:18px;height:18px;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
  .point-card h3{font-size:15.5px;font-weight:600;line-height:1.5}
  .point-card p{font-size:13.5px;line-height:1.75;color:var(--t2);margin-top:6px;max-width:none}

  .callout{
    display:flex;gap:14px;align-items:flex-start;
    margin-top:24px;padding:18px 20px;border-radius:16px;
    background:rgba(255,177,61,.07);border:1px solid rgba(255,177,61,.28);
  }
  .callout-tag{
    flex:0 0 auto;font-size:12px;font-weight:700;color:#2A1B02;background:var(--accent);
    padding:3px 9px;border-radius:999px;margin-top:3px;
  }
  .callout p{margin:0;font-size:14px;line-height:1.8;color:#E9D9BF;max-width:none}

  /* ===== Method cards ===== */
  .method-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
  .method-card{
    position:relative;display:flex;flex-direction:column;
    border-radius:var(--r-panel);overflow:hidden;
    background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.025));
    border:1px solid var(--line);
    transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
  }
  .method-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-2)}
  .method-media{position:relative;aspect-ratio:16/9;overflow:hidden}
  .method-media img{width:100%;height:100%;object-fit:cover}
  .method-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,10,18,0) 40%,rgba(7,10,18,.85))}
  .method-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
  .badge{
    display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
    font-size:12px;padding:4px 10px;border-radius:999px;font-weight:600;
    color:var(--primary);background:rgba(43,232,197,.12);border:1px solid rgba(43,232,197,.26);
  }
  .badge-amber{color:var(--accent);background:rgba(255,177,61,.12);border-color:rgba(255,177,61,.3)}
  .method-card h3{font-size:17px;font-weight:600;line-height:1.5}
  .method-card p{font-size:14px;color:var(--t2);line-height:1.8}
  .method-meta{
    margin-top:auto;display:flex;align-items:center;justify-content:space-between;
    padding-top:14px;border-top:1px solid rgba(255,255,255,.07);
    font-size:13px;color:var(--t3);
  }

  /* ===== Steps ===== */
  .step-list{position:relative;margin-top:8px;padding-left:34px}
  .step-list::before{
    content:"";position:absolute;left:9px;top:12px;bottom:12px;width:2px;border-radius:2px;
    background:linear-gradient(180deg,rgba(43,232,197,.85),rgba(43,232,197,.16));
    box-shadow:0 0 14px rgba(43,232,197,.35);
  }
  .step-item{position:relative;padding:0 0 28px}
  .step-item:last-child{padding-bottom:0}
  .step-item::before{
    content:"";position:absolute;left:-34px;top:8px;width:20px;height:20px;border-radius:50%;
    background:var(--bg-0);border:2px solid var(--primary);box-shadow:0 0 0 4px rgba(43,232,197,.1);
  }
  .step-no{font-size:12.5px;letter-spacing:.12em;color:var(--primary);font-weight:700}
  .step-item h3{font-size:17px;font-weight:600;margin-top:6px;line-height:1.5}
  .step-item p{font-size:14.5px;color:var(--t2);margin-top:8px;max-width:66ch;line-height:1.85}

  /* ===== Checklist rows ===== */
  .check-list{border-top:1px solid rgba(255,255,255,.07);margin-top:8px}
  .check-row{
    display:flex;align-items:flex-start;gap:18px;
    padding:20px 6px;border-bottom:1px solid rgba(255,255,255,.07);
    transition:background .22s var(--ease),padding-left .22s var(--ease);
  }
  .check-row:hover{background:rgba(255,255,255,.025);padding-left:14px}
  .check-no{
    flex:0 0 34px;font-size:13px;font-weight:700;color:var(--primary);
    font-variant-numeric:tabular-nums;letter-spacing:.06em;padding-top:2px;
  }
  .check-main{flex:1 1 auto;min-width:0}
  .check-main h3{font-size:16px;font-weight:600;line-height:1.5}
  .check-main p{font-size:14px;color:var(--t2);margin-top:6px;line-height:1.8;max-width:70ch}
  .check-arrow{flex:0 0 auto;color:var(--t3);padding-top:3px;transition:transform .22s var(--ease),color .22s var(--ease)}
  .check-row:hover .check-arrow{transform:translateX(4px);color:var(--primary)}

  /* ===== FAQ ===== */
  .faq-list{display:flex;flex-direction:column;gap:12px;max-width:880px}
  .faq-item{
    border-radius:16px;overflow:hidden;
    background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.025));
    border:1px solid var(--line);
    transition:border-color .22s var(--ease),background .22s var(--ease);
  }
  .faq-item:hover{border-color:var(--line-strong)}
  .faq-item.open{border-color:rgba(43,232,197,.4);box-shadow:0 0 0 1px rgba(43,232,197,.18)}
  .faq-q{
    width:100%;display:flex;align-items:center;gap:14px;text-align:left;
    padding:18px 20px;font-size:16px;font-weight:600;line-height:1.6;color:var(--t1);
    min-height:56px;
  }
  .faq-q .bar{
    flex:0 0 3px;width:3px;height:18px;border-radius:3px;background:transparent;
    transition:background .22s var(--ease),height .22s var(--ease);
  }
  .faq-item.open .faq-q .bar{background:var(--primary);box-shadow:0 0 10px rgba(43,232,197,.55);height:22px}
  .faq-icon{
    margin-left:auto;flex:0 0 auto;width:24px;height:24px;display:grid;place-items:center;
    color:var(--t2);transition:transform .22s var(--ease),color .22s var(--ease);
  }
  .faq-item.open .faq-icon{transform:rotate(45deg);color:var(--primary)}
  .faq-icon svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
  .faq-a-inner{padding:0 20px 20px 37px;font-size:15px;line-height:1.85;color:var(--t2);max-width:76ch}

  /* ===== CTA band ===== */
  .cta-band{
    position:relative;overflow:hidden;
    border-radius:var(--r-panel);
    padding:clamp(28px,4vw,48px);
    background:linear-gradient(150deg,rgba(43,232,197,.12),rgba(255,255,255,.03) 46%,rgba(124,92,255,.12));
    border:1px solid rgba(43,232,197,.3);
    box-shadow:0 0 0 1px rgba(43,232,197,.12),0 20px 50px rgba(0,0,0,.4);
    display:grid;grid-template-columns:1.4fr .6fr;gap:32px;align-items:center;
  }
  .cta-band h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:700}
  .cta-band p{color:var(--t2);font-size:15px;margin-top:12px;max-width:56ch}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px}
  .cta-glow{
    position:relative;height:170px;border-radius:18px;
    background:
      radial-gradient(120px 90px at 60% 40%,rgba(43,232,197,.5),transparent 70%),
      radial-gradient(110px 90px at 40% 70%,rgba(124,92,255,.42),transparent 72%);
    filter:blur(6px);opacity:.85;
  }

  /* ===== Footer ===== */
  .site-footer{
    background:var(--bg-1);border-top:1px solid var(--line);
    padding:clamp(44px,6vw,72px) 0 28px;margin-top:clamp(48px,7vw,96px);
    position:relative;z-index:1;
  }
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:clamp(24px,4vw,48px)}
  .footer-brand .brand{margin-bottom:14px}
  .footer-brand p{font-size:14px;color:var(--t2);line-height:1.85;max-width:34ch}
  .footer-title{font-size:13px;letter-spacing:.1em;color:var(--t3);margin-bottom:16px}
  .footer-links{display:flex;flex-direction:column;gap:10px}
  .footer-links a{font-size:14px;color:var(--t2);transition:color .22s var(--ease),transform .22s var(--ease);display:inline-block}
  .footer-links a:hover{color:var(--primary);transform:translateX(2px)}
  .footer-meta p{font-size:14px;color:var(--t2);line-height:1.9}
  .footer-meta strong{color:var(--t1);font-weight:600}
  .footer-bottom{
    margin-top:clamp(28px,4vw,44px);padding-top:20px;
    border-top:1px solid rgba(255,255,255,.07);
    display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;
    font-size:12.5px;color:var(--t3);
  }

  /* ===== Mobile tabs ===== */
  .mobile-tabs{
    position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;
    background:rgba(12,17,32,.94);
    border-top:1px solid var(--line);
    backdrop-filter:blur(16px) saturate(120%);
    -webkit-backdrop-filter:blur(16px) saturate(120%);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .mobile-tabs .tab{
    flex:1 1 0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
    padding:9px 2px 8px;position:relative;color:var(--t3);font-size:9.5px;line-height:1.2;letter-spacing:0;
  }
  .mobile-tabs .tab svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
  .mobile-tabs .tab.active{color:var(--primary)}
  .mobile-tabs .tab.active::before{
    content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
    width:26px;height:3px;border-radius:0 0 3px 3px;background:var(--primary);
    box-shadow:0 0 10px rgba(43,232,197,.7);
  }

  /* ===== Responsive ===== */
  @media (max-width:1180px){
    .nav-links .nav-link{padding:9px 9px;font-size:14px}
    .header-actions{gap:10px}
  }
  @media (max-width:1023px){
    .nav-links{display:none}
    .header-actions .header-quiet{display:none}
    .header-inner{justify-content:space-between}
    .mobile-tabs{display:flex}
    body{padding-bottom:74px}
    .hero-grid{grid-template-columns:1fr}
    .doc-layout{grid-template-columns:1fr}
    .doc-aside{position:static;order:-1}
    .anchor-list{flex-direction:row;flex-wrap:wrap;border-left:none;padding-left:0;gap:8px}
    .anchor-list a{
      padding:7px 13px;border-radius:999px;background:var(--surface);border:1px solid var(--line);font-size:13px;
    }
    .anchor-list a::before{display:none}
    .anchor-list a:hover{transform:none}
    .anchor-list a.is-active{color:var(--primary);border-color:rgba(43,232,197,.4);background:rgba(43,232,197,.1)}
    .aside-note{display:none}
    .method-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .point-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .cta-band{grid-template-columns:1fr}
    .cta-glow{display:none}
    .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  }
  @media (max-width:640px){
    body{font-size:15.5px}
    .method-grid{grid-template-columns:1fr}
    .point-grid{grid-template-columns:1fr}
    .hero-stats{gap:22px}
    .hero-stats > div{min-width:104px}
    .check-row{gap:12px;padding:18px 2px}
    .check-no{flex:0 0 26px}
    .doc-body p{font-size:15.5px}
    .faq-q{font-size:15px;padding:16px 16px;gap:10px}
    .faq-a-inner{padding:0 16px 18px 29px;font-size:14.5px}
    .cta-band{padding:24px 20px}
    .footer-grid{grid-template-columns:1fr;gap:28px}
    .footer-bottom{flex-direction:column;gap:8px}
    .float-card{left:12px;right:12px;bottom:12px;padding:12px 14px}
    .float-badge{display:none}
    .btn{width:100%}
    .hero-actions .btn,.cta-actions .btn{width:100%}
    .header-actions .btn-sm{width:auto}
  }
  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{transition:none !important;animation:none !important}
  }

/* roulang page: category3 */
:root{
  --bg-0:#070A12;
  --bg-1:#0C1120;
  --bg-2:#111829;
  --surface:rgba(255,255,255,.05);
  --surface-2:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --primary:#2BE8C5;
  --primary-deep:#0FBFA0;
  --accent:#FFB13D;
  --violet:#7C5CFF;
  --t1:#EAF1F7;
  --t2:#9BAABC;
  --t3:#64748B;
  --r-card:18px;
  --r-panel:22px;
  --r-btn:12px;
  --r-img:14px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 14px 36px rgba(0,0,0,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","HarmonyOS Sans SC",system-ui,-apple-system,"Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--t2);
  background:var(--bg-0);
  background-image:
    radial-gradient(760px 420px at 12% -6%, rgba(43,232,197,.14), transparent 66%),
    radial-gradient(680px 400px at 92% 4%, rgba(124,92,255,.13), transparent 68%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
button{font:inherit;color:inherit;background:none;border:none}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a:focus-visible,button:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 clamp(16px,4vw,32px)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,10,18,.74);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--t1);white-space:nowrap}
.brand-mark{
  width:30px;height:30px;display:grid;place-items:center;border-radius:10px;
  background:linear-gradient(160deg,rgba(43,232,197,.24),rgba(43,232,197,.06));
  border:1px solid rgba(43,232,197,.35);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.14);
}
.brand-mark svg{width:18px;height:18px;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;padding:8px 11px;font-size:14.5px;color:var(--t2);
  border-radius:8px;white-space:nowrap;
  transition:color .22s var(--ease),background .22s var(--ease);
}
.nav-link:hover{color:var(--t1);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--t1)}
.nav-link.active::after{
  content:"";position:absolute;left:11px;right:11px;bottom:-1px;height:2px;
  background:var(--primary);border-radius:2px;box-shadow:0 0 12px rgba(43,232,197,.6);
}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:6px}
.header-quiet{font-size:14px;color:var(--t2)}
.header-quiet:hover{color:var(--primary)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.4;cursor:pointer;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),filter .22s var(--ease);
}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-primary{
  background:var(--primary);color:#04140F;
  box-shadow:0 0 0 1px rgba(43,232,197,.35),0 10px 30px rgba(43,232,197,.22);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(43,232,197,.45),0 14px 34px rgba(43,232,197,.30)}
.btn-primary:active{transform:translateY(0);filter:brightness(1)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--t1)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary)}
.link-arrow svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .22s var(--ease)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- 通用板块 ---------- */
.section{padding:clamp(56px,8vw,96px) 0}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:clamp(28px,4vw,40px)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
  color:var(--primary);background:rgba(43,232,197,.12);border:1px solid rgba(43,232,197,.24);
  letter-spacing:.02em;
}
.eyebrow.amber{color:var(--accent);background:rgba(255,177,61,.12);border-color:rgba(255,177,61,.26)}
.sec-title{
  font-size:clamp(22px,2.6vw,34px);font-weight:700;line-height:1.35;color:var(--t1);
  letter-spacing:.01em;margin:16px 0 12px;
}
.sec-sub{font-size:15.5px;color:var(--t2);line-height:1.85}

/* ---------- 内页 Hero ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(100deg,rgba(7,10,18,.96) 0%,rgba(7,10,18,.88) 46%,rgba(7,10,18,.62) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.94;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:24px 24px;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.7),transparent 82%);
  -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.7),transparent 82%);
  pointer-events:none;
}
.page-hero .wrap{position:relative;z-index:2;padding-top:clamp(40px,6vw,72px);padding-bottom:clamp(40px,6vw,76px)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:22px}
.breadcrumb a{color:var(--t2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span.sep{color:var(--t3)}
.breadcrumb span.current{color:var(--t3)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:clamp(28px,4vw,56px);align-items:center}
.page-hero h1{
  font-size:clamp(28px,4vw,48px);font-weight:700;line-height:1.25;letter-spacing:.01em;
  color:var(--t1);margin:18px 0 18px;max-width:20ch;
}
.page-hero h1 em{font-style:normal;color:var(--primary)}
.hero-lead{font-size:clamp(15.5px,1.6vw,17.5px);line-height:1.85;color:var(--t2);max-width:56ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-stats{display:flex;flex-wrap:wrap;gap:clamp(20px,3vw,44px);margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}
.stat-num{
  font-size:clamp(26px,3vw,34px);font-weight:700;color:var(--t1);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;line-height:1.2;
}
.stat-num i{font-style:normal;font-size:.55em;color:var(--primary);margin-left:2px}
.stat-label{font-size:13px;color:var(--t3);margin-top:4px}

.hero-card{
  position:relative;border-radius:var(--r-panel);overflow:hidden;
  border:1px solid var(--line-strong);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.hero-card img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;border-radius:0}
.hero-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,18,0) 42%,rgba(7,10,18,.8));
  pointer-events:none;
}
.hero-float{
  position:absolute;left:16px;right:16px;bottom:16px;z-index:3;
  display:flex;align-items:center;gap:12px;
  padding:12px 14px;border-radius:14px;
  background:rgba(17,24,41,.72);
  border:1px solid rgba(43,232,197,.28);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:0 0 0 1px rgba(43,232,197,.14),0 10px 28px rgba(0,0,0,.4);
}
.dot-live{width:9px;height:9px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(43,232,197,.16);flex:none}
.hero-float .hf-title{font-size:13.5px;color:var(--t1);font-weight:600;line-height:1.4}
.hero-float .hf-sub{font-size:12px;color:var(--t3);line-height:1.4}
.hero-float .hf-tag{margin-left:auto;font-size:11.5px;padding:3px 9px;border-radius:999px;background:rgba(43,232,197,.14);color:var(--primary);white-space:nowrap}

/* ---------- 功能分组混合栅格 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:20px}
.card{
  position:relative;border-radius:var(--r-card);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow);
  padding:24px;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow-hover)}
.card-lg{grid-column:span 3;padding:28px}
.card-sm{grid-column:span 2;padding:22px}
.card-icon{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;margin-bottom:16px;
  background:rgba(43,232,197,.12);border:1px solid rgba(43,232,197,.26);
  color:var(--primary);
}
.card-icon svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:17px;font-weight:600;color:var(--t1);line-height:1.5;margin-bottom:8px}
.card-lg h3{font-size:19px}
.card p{font-size:14px;line-height:1.78;color:var(--t2)}
.card .card-foot{margin-top:16px;display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--t3)}
.card .card-foot .badge{
  font-size:11.5px;padding:3px 9px;border-radius:999px;
  color:var(--primary);background:rgba(43,232,197,.12);border:1px solid rgba(43,232,197,.22);
}
.card .card-foot .badge.amber{color:var(--accent);background:rgba(255,177,61,.12);border-color:rgba(255,177,61,.24)}

/* ---------- 时间线 ---------- */
.timeline{position:relative;max-width:820px;padding-left:34px}
.timeline::before{
  content:"";position:absolute;left:11px;top:8px;bottom:12px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,rgba(43,232,197,.85),rgba(43,232,197,.28) 55%,rgba(255,255,255,.06));
  box-shadow:0 0 18px rgba(43,232,197,.35);
}
.tl-item{position:relative;padding:0 0 30px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-30px;top:6px;width:12px;height:12px;border-radius:50%;
  background:var(--bg-0);border:2px solid var(--primary);
  box-shadow:0 0 0 4px rgba(43,232,197,.12);
}
.tl-item .tl-step{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;
  color:var(--primary);font-variant-numeric:tabular-nums;margin-bottom:6px;
}
.tl-item h3{font-size:18px;font-weight:600;color:var(--t1);line-height:1.5;margin-bottom:6px}
.tl-item p{font-size:14.5px;line-height:1.82;color:var(--t2);max-width:64ch}
.tl-item .tl-note{
  display:inline-flex;align-items:center;gap:7px;margin-top:10px;
  font-size:12.5px;color:var(--t3);
}
.tl-item .tl-note::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);flex:none}

/* ---------- 双列对比 ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;border-radius:var(--r-panel);overflow:hidden;border:1px solid var(--line);background:var(--bg-2)}
.compare-col{padding:clamp(22px,3vw,34px)}
.compare-col + .compare-col{border-left:1px solid var(--line)}
.compare-head{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.compare-head .ch-icon{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;flex:none;
  background:rgba(43,232,197,.12);border:1px solid rgba(43,232,197,.24);color:var(--primary);
}
.compare-head .ch-icon svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.compare-head h3{font-size:17.5px;font-weight:600;color:var(--t1);line-height:1.4}
.compare-head .ch-sub{font-size:12.5px;color:var(--t3)}
.compare-list li{
  display:flex;gap:11px;padding:12px 0;font-size:14px;line-height:1.78;color:var(--t2);
  border-top:1px solid rgba(255,255,255,.07);
}
.compare-list li:first-child{border-top:none}
.compare-list li svg{width:17px;height:17px;flex:none;margin-top:4px;fill:none;stroke:var(--primary);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.compare-col.alt .compare-head .ch-icon{background:rgba(255,177,61,.12);border-color:rgba(255,177,61,.26);color:var(--accent)}
.compare-col.alt .compare-list li svg{stroke:var(--accent)}

/* ---------- 场景卡 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.scene-card{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
  box-shadow:var(--shadow);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.scene-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.scene-media{position:relative;overflow:hidden}
.scene-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;transition:transform .4s var(--ease)}
.scene-card:hover .scene-media img{transform:scale(1.03)}
.scene-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,10,18,0) 46%,rgba(7,10,18,.7))}
.scene-body{padding:20px 22px 24px}
.scene-body h3{font-size:16.5px;font-weight:600;color:var(--t1);line-height:1.5;margin-bottom:8px}
.scene-body p{font-size:14px;line-height:1.78;color:var(--t2)}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{font-size:11.5px;padding:3px 10px;border-radius:999px;border:1px solid var(--line);color:var(--t3);background:rgba(255,255,255,.04)}

/* ---------- FAQ ---------- */
.faq{max-width:900px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;
  padding:20px 4px;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--t1);line-height:1.6;
  transition:color .22s var(--ease);
}
.faq-q:hover{color:var(--primary)}
.faq-q .fi-plus{
  margin-left:auto;position:relative;width:22px;height:22px;flex:none;
  transition:transform .22s var(--ease);
}
.faq-q .fi-plus::before,.faq-q .fi-plus::after{
  content:"";position:absolute;background:var(--t2);border-radius:2px;transition:background .22s var(--ease);
}
.faq-q .fi-plus::before{left:0;right:0;top:10px;height:2px}
.faq-q .fi-plus::after{top:0;bottom:0;left:10px;width:2px}
.faq-item.open .faq-q{color:var(--primary)}
.faq-item.open .fi-plus{transform:rotate(45deg)}
.faq-item.open .fi-plus::before,.faq-item.open .fi-plus::after{background:var(--primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-a-inner{padding:0 4px 22px;font-size:14.5px;line-height:1.88;color:var(--t2);max-width:70ch}
.faq-item.open .faq-a{max-height:340px}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-panel);
  padding:clamp(28px,5vw,52px);
  background:linear-gradient(150deg,rgba(43,232,197,.16),rgba(255,255,255,.04) 52%,rgba(124,92,255,.14));
  border:1px solid rgba(43,232,197,.30);
  box-shadow:0 0 0 1px rgba(43,232,197,.10),0 18px 44px rgba(0,0,0,.42);
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-80px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,232,197,.30),transparent 66%);
  filter:blur(14px);pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;color:var(--t1);line-height:1.4;position:relative;z-index:2}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.85;color:var(--t2);max-width:58ch;position:relative;z-index:2}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;position:relative;z-index:2}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:clamp(44px,6vw,68px) 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:clamp(24px,4vw,48px)}
.footer-brand .brand{font-size:16.5px;margin-bottom:14px}
.footer-brand p{font-size:13.5px;line-height:1.86;color:var(--t3);max-width:34ch}
.footer-title{font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--t1);margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--t2);transition:color .22s var(--ease),transform .22s var(--ease)}
.footer-links a:hover{color:var(--primary);transform:translateX(2px)}
.footer-meta p{font-size:13.5px;line-height:1.9;color:var(--t3);margin-bottom:8px}
.footer-meta strong{color:var(--t2);font-weight:600}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  margin-top:clamp(28px,4vw,44px);padding-top:20px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--t3);
}

/* ---------- 移动底部 Tab ---------- */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  display:none;
  background:rgba(12,17,32,.92);
  border-top:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tab-inner{display:flex;align-items:stretch}
.mobile-tab a{
  flex:1 1 0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  padding:9px 2px 8px;font-size:10px;color:var(--t3);position:relative;line-height:1.2;
  transition:color .22s var(--ease);
}
.mobile-tab a svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.mobile-tab a.active{color:var(--primary)}
.mobile-tab a.active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:22px;height:3px;border-radius:0 0 3px 3px;background:var(--primary);
  box-shadow:0 0 12px rgba(43,232,197,.7);
}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav-link{padding:8px 8px;font-size:14px}
  .header-quiet{display:none}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .header-actions{margin-left:auto}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .page-hero h1{max-width:none}
  .feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .card-lg,.card-sm{grid-column:span 1}
  .scene-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .compare-grid{grid-template-columns:1fr}
  .compare-col + .compare-col{border-left:none;border-top:1px solid var(--line)}
  .mobile-tab{display:block}
  body{padding-bottom:72px}
}
@media (max-width:639px){
  .header-inner{height:60px;gap:12px}
  .brand{font-size:15.5px}
  .brand-mark{width:27px;height:27px}
  .brand-mark svg{width:16px;height:16px}
  .btn-sm{padding:8px 13px;font-size:13px}
  .feature-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-stats{gap:22px}
  .stat-num{font-size:24px}
  .timeline{padding-left:28px}
  .tl-item::before{left:-26px}
  .card,.card-lg,.card-sm{padding:20px}
  .faq-q{font-size:15px;padding:17px 2px;gap:12px}
  .footer-bottom{flex-direction:column;gap:6px}
  .cta-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important}
  .card:hover,.scene-card:hover,.btn:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --bg-0:#070A12; --bg-1:#0C1120; --bg-2:#111829;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --primary:#2BE8C5; --primary-deep:#0FBFA0;
  --accent:#FFB13D; --violet:#7C5CFF;
  --t1:#EAF1F7; --t2:#9BAABC; --t3:#64748B;
  --r-card:18px; --r-panel:22px; --r-btn:12px; --r-img:14px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 14px 36px rgba(0,0,0,.45);
  --ease:220ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;padding:0;
  font-family:"Noto Sans SC","HarmonyOS Sans SC",system-ui,-apple-system,"Microsoft YaHei",sans-serif;
  background:var(--bg-0);color:var(--t1);
  font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
  background-image:radial-gradient(900px 500px at 8% -6%,rgba(43,232,197,.10),transparent 62%),
                   radial-gradient(760px 420px at 96% 4%,rgba(124,92,255,.10),transparent 66%);
  background-repeat:no-repeat;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(43,232,197,.28);color:#04140F;}

.wrap{max-width:1200px;margin:0 auto;padding-left:clamp(16px,4vw,32px);padding-right:clamp(16px,4vw,32px);}
.section{padding-top:clamp(56px,8vw,96px);padding-bottom:clamp(56px,8vw,96px);}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px;}
.section-head h2{font-size:clamp(22px,2.6vw,34px);line-height:1.35;font-weight:700;letter-spacing:.01em;}
.section-head p{color:var(--t2);font-size:15px;max-width:620px;margin-top:10px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--primary);
  background:rgba(43,232,197,.10);border:1px solid rgba(43,232,197,.28);border-radius:999px;padding:5px 13px;letter-spacing:.04em;}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(43,232,197,.9);}

/* ===== 头部导航 ===== */
.site-header{position:sticky;top:0;z-index:60;background:rgba(7,10,18,.72);
  backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);transition:background var(--ease),border-color var(--ease);}
.site-header.is-scrolled{background:rgba(7,10,18,.92);border-bottom-color:var(--line-strong);}
.header-inner{display:flex;align-items:center;gap:18px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:16px;letter-spacing:.02em;color:var(--t1);white-space:nowrap;}
.brand-mark{width:30px;height:30px;display:grid;place-items:center;border-radius:9px;
  background:linear-gradient(160deg,rgba(43,232,197,.24),rgba(43,232,197,.05));
  border:1px solid rgba(43,232,197,.38);box-shadow:0 0 18px rgba(43,232,197,.18);}
.brand-mark svg{width:17px;height:17px;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px;}
.nav-link{position:relative;padding:8px 12px;border-radius:9px;font-size:14.5px;color:var(--t2);transition:color var(--ease),background var(--ease);}
.nav-link:hover{color:var(--t1);background:rgba(255,255,255,.05);}
.nav-link.active{color:var(--t1);}
.nav-link.active::after{content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px rgba(43,232,197,.65);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.header-quiet{font-size:14px;color:var(--t2);transition:color var(--ease);}
.header-quiet:hover{color:var(--primary);}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);
  padding:12px 22px;font-size:15px;font-weight:600;letter-spacing:.01em;line-height:1;
  transition:transform var(--ease),background var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease);}
.btn-sm{padding:10px 16px;font-size:14px;}
.btn-primary{background:var(--primary);color:#04140F;
  box-shadow:0 0 0 1px rgba(43,232,197,.35),0 10px 26px rgba(43,232,197,.22);}
.btn-primary:hover{background:#41f2d2;transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(43,232,197,.5),0 14px 32px rgba(43,232,197,.32);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--t1);border:1px solid var(--line);}
.btn-ghost:hover{border-color:rgba(43,232,197,.55);color:var(--primary);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary);font-weight:600;}
.text-link .arrow{transition:transform var(--ease);}
.text-link:hover .arrow{transform:translateX(3px);}

/* ===== 内页 Hero ===== */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);
  padding-top:clamp(32px,5vw,56px);padding-bottom:clamp(44px,6vw,80px);}
.page-hero::before{content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;opacity:.30;}
.page-hero::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,18,.62) 0%,rgba(7,10,18,.90) 58%,var(--bg-0) 100%),
             radial-gradient(880px 420px at 10% 0%,rgba(43,232,197,.16),transparent 62%),
             radial-gradient(700px 380px at 92% 8%,rgba(124,92,255,.14),transparent 66%);}
.page-hero .wrap{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:22px;}
.crumb a{color:var(--t2);transition:color var(--ease);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:var(--t3);}
.crumb .current{color:var(--t2);}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:clamp(24px,4vw,52px);align-items:center;}
.page-hero h1{font-size:clamp(28px,4.2vw,50px);line-height:1.24;font-weight:700;letter-spacing:.01em;margin:18px 0 18px;max-width:16em;}
.page-hero .lede{font-size:clamp(15px,1.4vw,17px);color:var(--t2);line-height:1.85;max-width:36em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:clamp(18px,3vw,40px);margin-top:34px;padding-top:24px;border-top:1px solid var(--line);}
.fact-num{font-size:clamp(24px,2.6vw,32px);font-weight:700;letter-spacing:.02em;font-variant-numeric:tabular-nums;color:var(--t1);line-height:1.2;}
.fact-num span{font-size:14px;color:var(--t3);font-weight:500;margin-left:4px;letter-spacing:0;}
.fact-label{font-size:13px;color:var(--t3);margin-top:4px;}

/* Hero 右侧状态面板 */
.status-panel{position:relative;background:linear-gradient(160deg,rgba(255,255,255,.09),rgba(255,255,255,.03));
  border:1px solid var(--line-strong);border-radius:var(--r-panel);padding:22px;
  backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.10);}
.status-panel::before{content:"";position:absolute;inset:-1px;border-radius:inherit;pointer-events:none;
  background:radial-gradient(340px 160px at 82% -10%,rgba(43,232,197,.22),transparent 70%);}
.status-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;position:relative;}
.status-title{font-size:14px;color:var(--t2);letter-spacing:.04em;}
.status-flag{font-size:12px;font-weight:600;color:var(--primary);background:rgba(43,232,197,.12);
  border:1px solid rgba(43,232,197,.30);border-radius:999px;padding:3px 10px;}
.status-row{position:relative;margin-bottom:15px;}
.status-row:last-child{margin-bottom:0;}
.status-row-top{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin-bottom:7px;}
.status-name{font-size:13.5px;color:var(--t1);}
.status-val{font-size:13px;color:var(--t3);font-variant-numeric:tabular-nums;}
.bar{height:6px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;}
.bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary-deep),var(--primary));
  box-shadow:0 0 12px rgba(43,232,197,.45);}
.bar i.warn{background:linear-gradient(90deg,#d98a1f,var(--accent));box-shadow:0 0 12px rgba(255,177,61,.35);}

/* ===== 筛选药丸 ===== */
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:28px;}
.filter-bar .filter-label{font-size:13px;color:var(--t3);margin-right:4px;letter-spacing:.04em;}
.pill{padding:8px 16px;border-radius:999px;font-size:14px;color:var(--t2);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:color var(--ease),background var(--ease),border-color var(--ease),transform var(--ease);}
.pill:hover{color:var(--t1);border-color:var(--line-strong);transform:translateY(-1px);}
.pill.is-on{background:var(--primary);color:#04140F;border-color:var(--primary);font-weight:600;
  box-shadow:0 0 0 1px rgba(43,232,197,.35),0 8px 22px rgba(43,232,197,.25);}

/* ===== 卡片 ===== */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.card{display:flex;flex-direction:column;background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);}
.card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 480ms cubic-bezier(.2,.7,.3,1);}
.card:hover .card-media img{transform:scale(1.04);}
.card-media::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,18,0) 42%,rgba(7,10,18,.78) 100%);}
.card-media .media-tag{position:absolute;left:12px;top:12px;z-index:2;}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:17px;font-weight:600;line-height:1.5;}
.card-body p{font-size:14px;color:var(--t2);line-height:1.75;}
.card-foot{margin-top:auto;padding-top:6px;display:flex;align-items:center;justify-content:space-between;gap:10px;}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;letter-spacing:.02em;
  padding:4px 10px;border-radius:999px;background:rgba(43,232,197,.12);color:var(--primary);
  border:1px solid rgba(43,232,197,.26);}
.badge-warm{background:rgba(255,177,61,.13);color:var(--accent);border-color:rgba(255,177,61,.30);}
.badge-mute{background:rgba(255,255,255,.06);color:var(--t2);border-color:var(--line);}
.meta-line{font-size:12.5px;color:var(--t3);font-variant-numeric:tabular-nums;}
.card.is-hidden{display:none;}

/* ===== 自查评分 ===== */
.score-wrap{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(24px,4vw,48px);align-items:start;}
.score-intro h2{font-size:clamp(22px,2.6vw,32px);line-height:1.35;font-weight:700;margin-bottom:14px;}
.score-intro p{color:var(--t2);font-size:15px;margin-bottom:14px;}
.score-list{display:flex;flex-direction:column;gap:16px;}
.score-item{background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.025));
  border:1px solid var(--line);border-radius:16px;padding:16px 18px;transition:border-color var(--ease),box-shadow var(--ease);}
.score-item:hover{border-color:var(--line-strong);box-shadow:var(--shadow);}
.score-top{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:9px;}
.score-top strong{font-size:15px;font-weight:600;}
.score-top em{font-style:normal;font-size:13px;color:var(--t3);font-variant-numeric:tabular-nums;}
.score-note{font-size:13px;color:var(--t3);margin-top:9px;}

/* ===== 场景切换 ===== */
.scene-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px;}
.scene-panel{background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
  border:1px solid var(--line);border-radius:var(--r-panel);overflow:hidden;
  display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);}
.scene-figure{position:relative;min-height:280px;background:var(--bg-2);}
.scene-figure img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.scene-figure::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,18,.05) 40%,rgba(7,10,18,.72) 100%);}
.scene-text{padding:clamp(22px,3vw,36px);}
.scene-text h3{font-size:clamp(19px,2vw,24px);font-weight:700;margin-bottom:12px;}
.scene-text p{color:var(--t2);font-size:15px;margin-bottom:16px;}
.check-list{display:flex;flex-direction:column;gap:10px;}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--t2);}
.check-list svg{flex:none;width:18px;height:18px;margin-top:4px;stroke:var(--primary);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}

/* ===== 步骤条 ===== */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;position:relative;}
.steps::before{content:"";position:absolute;left:6%;right:6%;top:26px;height:1px;
  background:linear-gradient(90deg,rgba(43,232,197,.05),rgba(43,232,197,.45),rgba(43,232,197,.05));}
.step{position:relative;background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--line);border-radius:16px;padding:22px 18px;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);}
.step:hover{transform:translateY(-2px);border-color:rgba(43,232,197,.40);box-shadow:var(--shadow);}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:11px;
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
  background:rgba(43,232,197,.12);color:var(--primary);border:1px solid rgba(43,232,197,.32);margin-bottom:14px;}
.step h3{font-size:16px;font-weight:600;margin-bottom:8px;}
.step p{font-size:14px;color:var(--t2);}

/* ===== FAQ ===== */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px;margin:0 auto;}
.faq-item{border:1px solid var(--line);border-radius:16px;overflow:hidden;
  background:linear-gradient(160deg,rgba(255,255,255,.055),rgba(255,255,255,.02));
  transition:border-color var(--ease),box-shadow var(--ease);}
.faq-item:hover{border-color:var(--line-strong);}
.faq-item.is-open{border-color:rgba(43,232,197,.38);box-shadow:0 0 0 1px rgba(43,232,197,.14),var(--shadow);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;min-height:54px;text-align:left;font-size:15.5px;font-weight:600;color:var(--t1);position:relative;}
.faq-item.is-open .faq-q{color:var(--primary);}
.faq-item.is-open .faq-q::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  border-radius:3px;background:var(--primary);box-shadow:0 0 12px rgba(43,232,197,.6);}
.faq-icon{flex:none;width:18px;height:18px;position:relative;transition:transform var(--ease);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--t2);border-radius:2px;}
.faq-icon::before{left:0;right:0;top:8px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-item.is-open .faq-icon::before,.faq-item.is-open .faq-icon::after{background:var(--primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms cubic-bezier(.2,.7,.3,1);}
.faq-a-inner{padding:0 20px 18px 20px;font-size:15px;line-height:1.85;color:var(--t2);}

/* ===== CTA ===== */
.cta-band{position:relative;overflow:hidden;border-radius:var(--r-panel);
  border:1px solid rgba(43,232,197,.28);
  background:linear-gradient(150deg,rgba(43,232,197,.10),rgba(255,255,255,.035) 42%,rgba(124,92,255,.10));
  padding:clamp(28px,4vw,52px);
  box-shadow:0 0 0 1px rgba(43,232,197,.10),0 18px 48px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.10);}
.cta-band::after{content:"";position:absolute;right:-80px;top:-90px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,232,197,.30),transparent 66%);filter:blur(10px);pointer-events:none;}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);
  gap:clamp(20px,3vw,40px);align-items:center;}
.cta-band h2{font-size:clamp(22px,2.7vw,32px);line-height:1.35;font-weight:700;margin-bottom:12px;}
.cta-band p{color:var(--t2);font-size:15px;max-width:38em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}

/* ===== 页脚 ===== */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding-top:clamp(40px,6vw,64px);padding-bottom:28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:clamp(20px,3vw,40px);}
.footer-brand p{font-size:14px;color:var(--t2);margin-top:14px;max-width:30em;line-height:1.8;}
.footer-title{font-size:13px;letter-spacing:.08em;color:var(--t3);margin-bottom:14px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--t2);transition:color var(--ease),transform var(--ease);display:inline-block;}
.footer-links a:hover{color:var(--primary);transform:translateX(2px);}
.footer-meta p{font-size:14px;color:var(--t2);margin-bottom:10px;line-height:1.7;}
.footer-meta strong{color:var(--t1);font-weight:600;}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  margin-top:clamp(28px,4vw,44px);padding-top:20px;border-top:1px solid var(--line);font-size:12.5px;color:var(--t3);}

/* ===== 移动底部 Tab ===== */
.mobile-tab{display:none;}
@media (max-width:1023px){
  .nav-links,.header-quiet{display:none;}
  .header-actions{margin-left:auto;}
  .mobile-tab{display:grid;grid-template-columns:repeat(6,1fr);position:fixed;left:0;right:0;bottom:0;z-index:80;
    background:rgba(12,17,32,.94);backdrop-filter:blur(16px) saturate(130%);-webkit-backdrop-filter:blur(16px) saturate(130%);
    border-top:1px solid var(--line-strong);
    padding:8px 4px calc(8px + env(safe-area-inset-bottom));}
  .mobile-tab a{position:relative;display:flex;flex-direction:column;align-items:center;gap:4px;
    font-size:10px;line-height:1.2;color:var(--t3);padding:4px 0;transition:color var(--ease);}
  .mobile-tab a svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
  .mobile-tab a.active{color:var(--primary);}
  .mobile-tab a.active::before{content:"";position:absolute;top:-9px;left:50%;transform:translateX(-50%);
    width:26px;height:3px;border-radius:3px;background:var(--primary);box-shadow:0 0 12px rgba(43,232,197,.8);}
  body{padding-bottom:78px;}
}
@media (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;}
  .status-panel{max-width:520px;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .score-wrap{grid-template-columns:1fr;}
  .scene-panel{grid-template-columns:1fr;}
  .scene-figure{min-height:220px;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps::before{display:none;}
  .cta-grid{grid-template-columns:1fr;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:640px){
  .header-inner{height:62px;}
  .brand{font-size:15px;}
  .grid-3{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .hero-facts{gap:20px;}
  .hero-actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .page-hero h1{font-size:clamp(26px,7vw,34px);}
  .section-head{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .card:hover,.step:hover,.btn:hover,.btn-ghost:hover{transform:none;}
}

/* roulang page: category4 */
:root{
  --bg-0:#070A12;
  --bg-1:#0C1120;
  --bg-2:#111829;
  --surface:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
  --surface-soft:rgba(255,255,255,.032);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --primary:#2BE8C5;
  --primary-deep:#0FBFA0;
  --accent:#FFB13D;
  --violet:#7C5CFF;
  --t1:#EAF1F7;
  --t2:#9BAABC;
  --t3:#64748B;
  --radius-card:18px;
  --radius-panel:22px;
  --radius-btn:12px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 14px 36px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(43,232,197,.35),0 10px 30px rgba(43,232,197,.25);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:220ms;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","HarmonyOS Sans SC",system-ui,-apple-system,"Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--t2);
  background:
    radial-gradient(900px 520px at 10% -8%,rgba(43,232,197,.13),transparent 62%),
    radial-gradient(760px 500px at 94% 2%,rgba(124,92,255,.12),transparent 64%),
    var(--bg-0);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:24px 24px;
  opacity:.35;
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease),background-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:700;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
::selection{background:rgba(43,232,197,.28);color:#fff}

.wrap{max-width:1200px;margin:0 auto;padding-left:clamp(16px,4vw,32px);padding-right:clamp(16px,4vw,32px);position:relative;z-index:1}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,10,18,.78);
  backdrop-filter:blur(12px) saturate(120%);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  border-bottom:1px solid transparent;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.site-header.scrolled{background:rgba(7,10,18,.9);border-bottom-color:var(--line);box-shadow:0 10px 30px rgba(0,0,0,.4)}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--t1);letter-spacing:.02em;white-space:nowrap}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;display:grid;place-items:center;border-radius:11px;
  background:linear-gradient(160deg,rgba(43,232,197,.18),rgba(43,232,197,.05));
  border:1px solid rgba(43,232,197,.3);
  box-shadow:0 0 0 1px rgba(43,232,197,.08) inset;
}
.brand-mark svg{width:20px;height:20px;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.brand:hover{color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:2px;margin:0 auto}
.nav-link{position:relative;padding:8px 12px;font-size:14px;color:var(--t2);border-radius:10px;white-space:nowrap}
.nav-link:hover{color:var(--t1);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--t1);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(43,232,197,.6)}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.header-quiet{font-size:14px;color:var(--t2)}
.header-quiet:hover{color:var(--primary)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:14px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:all var(--dur) var(--ease);white-space:nowrap;
}
.btn-sm{padding:9px 16px;font-size:13.5px}
.btn-primary{background:var(--primary);color:#04140F;box-shadow:var(--glow)}
.btn-primary:hover{filter:brightness(1.07);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(43,232,197,.5),0 14px 34px rgba(43,232,197,.32)}
.btn-primary:active{transform:translateY(0);filter:brightness(1)}
.btn-ghost{background:rgba(255,255,255,.03);border-color:var(--line);color:var(--t1)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary);font-weight:600}
.btn-link svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform var(--dur) var(--ease)}
.btn-link:hover svg{transform:translateX(3px)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;letter-spacing:.02em;
  background:rgba(43,232,197,.12);color:var(--primary);border:1px solid rgba(43,232,197,.24);
}
.tag-amber{background:rgba(255,177,61,.12);color:var(--accent);border-color:rgba(255,177,61,.26)}

/* ============ Hero ============ */
.page-hero{padding:clamp(36px,6vw,68px) 0 clamp(30px,5vw,56px);position:relative}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:18px;flex-wrap:wrap}
.crumbs a{color:var(--t2)}
.crumbs a:hover{color:var(--primary)}
.crumbs span.sep{color:var(--t3)}
.crumbs .current{color:var(--t3)}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:clamp(24px,4vw,48px);align-items:center}
.hero-title{font-size:clamp(28px,4.2vw,50px);line-height:1.25;letter-spacing:.01em;margin-top:18px}
.hero-title em{font-style:normal;color:var(--primary)}
.hero-lead{margin-top:20px;font-size:17px;line-height:1.9;color:var(--t2);max-width:58ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.stat-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:38px;padding-top:26px;border-top:1px solid var(--line)}
.stat-num{font-size:clamp(24px,3vw,32px);font-weight:700;color:var(--t1);font-variant-numeric:tabular-nums;letter-spacing:.02em;line-height:1.2}
.stat-num small{font-size:13px;font-weight:600;color:var(--t3);margin-left:4px;letter-spacing:0}
.stat-label{font-size:13px;color:var(--t3);margin-top:6px;line-height:1.6}

.hero-media{position:relative;border-radius:var(--radius-panel);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.hero-media img{width:100%;height:100%;aspect-ratio:16/11;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,10,18,0) 38%,rgba(7,10,18,.82));pointer-events:none}
.hero-float{
  position:absolute;left:16px;right:16px;bottom:16px;padding:14px 16px;border-radius:16px;
  background:linear-gradient(160deg,rgba(255,255,255,.11),rgba(255,255,255,.045));
  border:1px solid var(--line-strong);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:0 0 0 1px rgba(43,232,197,.16),0 10px 30px rgba(43,232,197,.18);
  z-index:2;
}
.hero-float .hf-top{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--t3);letter-spacing:.04em}
.hero-float .dot{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(43,232,197,.9)}
.hero-float .hf-main{margin-top:6px;font-size:15px;font-weight:600;color:var(--t1)}
.hero-float .hf-sub{margin-top:4px;font-size:12.5px;color:var(--t2)}

/* ============ 板块 ============ */
.section{padding:clamp(52px,8vw,96px) 0;position:relative}
.section-alt{background:rgba(12,17,32,.82);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:740px;margin-bottom:clamp(28px,4vw,42px)}
.section-head h2{font-size:clamp(22px,2.6vw,34px);line-height:1.35;margin-top:14px}
.section-head p{margin-top:14px;font-size:15.5px;line-height:1.9;color:var(--t2)}
.section-head .btn-link{margin-top:18px}

/* 速览数字卡 */
.quick-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.quick-card{
  padding:24px 22px;border-radius:var(--radius-card);border:1px solid var(--line);
  background:var(--surface);box-shadow:var(--shadow);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.quick-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.quick-card .qc-num{font-size:30px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:.02em;line-height:1.15}
.quick-card .qc-name{margin-top:8px;font-size:15px;font-weight:600;color:var(--t1)}
.quick-card .qc-note{margin-top:6px;font-size:13px;color:var(--t3);line-height:1.7}

/* 对比 */
.compare{
  display:grid;grid-template-columns:1fr 1fr;
  border:1px solid var(--line);border-radius:var(--radius-panel);overflow:hidden;
  background:linear-gradient(160deg,rgba(255,255,255,.055),rgba(255,255,255,.02));
  box-shadow:var(--shadow);
}
.compare-col{padding:clamp(22px,3vw,34px)}
.compare-col + .compare-col{border-left:1px solid var(--line);background:rgba(255,255,255,.018)}
.compare-head{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:600;color:var(--t1)}
.compare-head .ci{width:28px;height:28px;flex:0 0 28px;border-radius:9px;display:grid;place-items:center;background:rgba(43,232,197,.12);border:1px solid rgba(43,232,197,.26)}
.compare-head .ci svg{width:15px;height:15px;fill:none;stroke:var(--primary);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.compare-col.amber .ci{background:rgba(255,177,61,.12);border-color:rgba(255,177,61,.28)}
.compare-col.amber .ci svg{stroke:var(--accent)}
.compare-sub{margin-top:10px;font-size:13.5px;color:var(--t3);line-height:1.75}
.compare-list{margin-top:20px}
.compare-list li{display:flex;gap:10px;padding:13px 0;border-top:1px solid rgba(255,255,255,.07);font-size:14.5px;line-height:1.75;color:var(--t2)}
.compare-list li:first-child{border-top:0}
.compare-list .mk{flex:0 0 auto;width:18px;height:18px;margin-top:3px}
.compare-list .mk svg{width:18px;height:18px;fill:none;stroke:var(--primary);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.compare-col.amber .compare-list .mk svg{stroke:var(--accent)}
.compare-note{margin-top:18px;font-size:12.5px;color:var(--t3)}

/* 流程 */
.flow{position:relative;max-width:820px}
.flow::before{
  content:"";position:absolute;left:13px;top:16px;bottom:26px;width:2px;
  background:linear-gradient(180deg,rgba(43,232,197,.85),rgba(43,232,197,.06));
}
.flow-step{position:relative;padding-left:50px;padding-bottom:30px}
.flow-step:last-child{padding-bottom:0}
.flow-dot{
  position:absolute;left:1px;top:0;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;font-size:11.5px;font-weight:700;font-variant-numeric:tabular-nums;
  color:var(--primary);background:var(--bg-0);border:1px solid rgba(43,232,197,.55);
  box-shadow:0 0 0 4px rgba(43,232,197,.06);
}
.flow-step h3{font-size:17px;font-weight:600;color:var(--t1)}
.flow-step p{margin-top:7px;font-size:14.5px;line-height:1.85;color:var(--t2);max-width:62ch}
.flow-step .flow-tip{display:inline-block;margin-top:10px;font-size:12.5px;color:var(--t3);border-left:2px solid rgba(43,232,197,.4);padding-left:10px}

/* 规则列表 */
.rule-list{border-top:1px solid var(--line)}
.rule-item{
  display:grid;grid-template-columns:56px 1fr 26px;gap:16px;align-items:start;
  padding:22px 10px;border-bottom:1px solid rgba(255,255,255,.07);
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.rule-item:hover{background:rgba(255,255,255,.035);border-bottom-color:rgba(43,232,197,.28)}
.rule-num{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--primary);font-variant-numeric:tabular-nums;padding-top:5px}
.rule-title{font-size:16.5px;font-weight:600;color:var(--t1)}
.rule-desc{margin-top:7px;font-size:14px;line-height:1.8;color:var(--t2)}
.rule-arrow{display:flex;justify-content:flex-end;padding-top:4px;color:var(--t3);transition:transform var(--dur) var(--ease),color var(--dur) var(--ease)}
.rule-arrow svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.rule-item:hover .rule-arrow{color:var(--primary);transform:translateX(3px)}

/* FAQ */
.faq{border:1px solid var(--line);border-radius:var(--radius-panel);overflow:hidden;background:var(--surface-soft);box-shadow:var(--shadow)}
.faq-item + .faq-item{border-top:1px solid rgba(255,255,255,.07)}
.faq-btn{
  position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px 18px 24px;background:none;border:0;cursor:pointer;
  font-size:15.5px;font-weight:600;color:var(--t1);text-align:left;line-height:1.65;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.faq-btn:hover{background:rgba(255,255,255,.035)}
.faq-btn::before{content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:3px;background:var(--primary);opacity:0;transition:opacity var(--dur) var(--ease)}
.faq-item.open .faq-btn::before{opacity:1}
.faq-icon{flex:0 0 22px;width:22px;height:22px;display:grid;place-items:center;color:var(--t3);transition:transform var(--dur) var(--ease),color var(--dur) var(--ease)}
.faq-icon svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round}
.faq-item.open .faq-icon{transform:rotate(45deg);color:var(--primary)}
.faq-panel{max-height:0;overflow:hidden;transition:max-height 260ms var(--ease)}
.faq-item.open .faq-panel{max-height:340px}
.faq-panel p{padding:0 22px 20px 24px;font-size:15px;line-height:1.9;color:var(--t2)}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-panel);
  border:1px solid rgba(43,232,197,.28);
  padding:clamp(26px,5vw,52px);
  background:linear-gradient(150deg,rgba(43,232,197,.10),rgba(124,92,255,.09)),var(--bg-2);
  box-shadow:0 0 0 1px rgba(43,232,197,.14),0 18px 50px rgba(0,0,0,.45);
}
.cta-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.webp');background-size:cover;background-position:center;opacity:.18;pointer-events:none}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr auto;gap:clamp(20px,4vw,44px);align-items:center}
.cta-inner h2{font-size:clamp(22px,2.6vw,32px);line-height:1.35}
.cta-inner p{margin-top:12px;font-size:15px;line-height:1.85;color:var(--t2);max-width:60ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* 页脚 */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:clamp(44px,7vw,72px) 0 28px;position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:clamp(24px,4vw,44px)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--t2);max-width:34ch}
.footer-title{font-size:14px;font-weight:700;color:var(--t1);letter-spacing:.04em;margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--t2)}
.footer-links a:hover{color:var(--primary);transform:translateX(2px)}
.footer-meta p{font-size:14px;color:var(--t2);line-height:1.8;margin-bottom:8px}
.footer-meta strong{color:var(--t1);font-weight:600}
.footer-bottom{
  margin-top:clamp(32px,5vw,48px);padding-top:20px;border-top:1px solid rgba(255,255,255,.07);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:12.5px;color:var(--t3);
}

/* 移动底部 Tab */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;
  background:rgba(9,13,22,.94);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  border-top:1px solid var(--line);
  padding:8px 4px calc(8px + env(safe-area-inset-bottom));
}
.mobile-tab a{
  position:relative;flex:1 1 0;display:flex;flex-direction:column;align-items:center;gap:4px;
  padding:6px 2px;font-size:10px;line-height:1.2;color:var(--t3);white-space:nowrap;
}
.mobile-tab a svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.mobile-tab a.active{color:var(--primary)}
.mobile-tab a.active::before{
  content:"";position:absolute;top:-8px;left:50%;transform:translateX(-50%);
  width:20px;height:3px;border-radius:0 0 3px 3px;background:var(--primary);
  box-shadow:0 0 12px rgba(43,232,197,.75);
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-links{display:none}
  .hero-grid{grid-template-columns:1fr}
  .hero-media{order:-1;max-width:560px}
  .quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .compare{grid-template-columns:1fr}
  .compare-col + .compare-col{border-left:0;border-top:1px solid var(--line)}
  .cta-inner{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .mobile-tab{display:flex}
  body{padding-bottom:calc(70px + env(safe-area-inset-bottom))}
  .header-actions .header-quiet{display:none}
  .header-inner{height:62px;gap:12px}
  .brand{font-size:16px}
  .brand-mark{width:30px;height:30px;flex-basis:30px;border-radius:10px}
  .brand-mark svg{width:18px;height:18px}
  .hero-lead{font-size:15.5px}
  .stat-row{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
  .stat-num{font-size:22px}
  .stat-label{font-size:12px}
  .faq-btn{font-size:14.5px;padding:16px 18px 16px 20px}
  .faq-panel p{padding:0 18px 18px 20px;font-size:14px}
  .footer-bottom{font-size:12px}
}
@media (max-width:520px){
  .quick-grid{grid-template-columns:1fr}
  .stat-row{grid-template-columns:1fr;gap:14px;padding-top:20px}
  .stat-num{font-size:24px}
  .rule-item{grid-template-columns:42px 1fr;padding:18px 4px}
  .rule-arrow{display:none}
  .hero-cta .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .hero-float{position:static;margin:0;border-radius:0;border-left:0;border-right:0;border-bottom:0}
  .hero-media::after{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .quick-card:hover,.rule-item:hover .rule-arrow,.btn:hover{transform:none !important}
}

/* roulang page: category5 */
:root{
  --bg-0:#070A12;
  --bg-1:#0C1120;
  --bg-2:#111829;
  --surface:rgba(255,255,255,.055);
  --surface-2:rgba(255,255,255,.075);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --primary:#2BE8C5;
  --primary-deep:#0FBFA0;
  --accent:#FFB13D;
  --violet:#7C5CFF;
  --t1:#EAF1F7;
  --t2:#9BAABC;
  --t3:#64748B;
  --r-card:18px;
  --r-panel:22px;
  --r-btn:12px;
  --r-img:14px;
  --shadow-1:0 8px 24px rgba(0,0,0,.35);
  --shadow-2:0 14px 36px rgba(0,0,0,.45);
  --ease:220ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","HarmonyOS Sans SC",system-ui,-apple-system,"Microsoft YaHei",sans-serif;
  background:var(--bg-0);
  color:var(--t1);
  line-height:1.85;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  padding-bottom:0;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(700px 420px at 12% -6%,rgba(43,232,197,.13),transparent 68%),
    radial-gradient(640px 400px at 92% 4%,rgba(124,92,255,.12),transparent 70%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
p{margin:0;}
button{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px;}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 clamp(16px,4vw,32px);position:relative;z-index:1;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,10,18,.74);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),backdrop-filter var(--ease);
}
.site-header.scrolled{
  background:rgba(7,10,18,.9);
  border-bottom-color:var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:16.5px;font-weight:700;letter-spacing:.02em;color:var(--t1);white-space:nowrap;}
.brand-mark{
  width:32px;height:32px;display:grid;place-items:center;border-radius:10px;
  background:linear-gradient(160deg,rgba(43,232,197,.22),rgba(255,255,255,.04));
  border:1px solid rgba(43,232,197,.35);
  box-shadow:0 0 0 1px rgba(43,232,197,.12),inset 0 1px 0 rgba(255,255,255,.14);
  transition:box-shadow var(--ease),transform var(--ease);
}
.brand:hover .brand-mark{box-shadow:0 0 0 1px rgba(43,232,197,.45),0 8px 22px rgba(43,232,197,.22);}
.brand-mark svg{width:18px;height:18px;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;padding:8px 12px;border-radius:10px;font-size:14.5px;color:var(--t2);
  transition:color var(--ease),background var(--ease);
}
.nav-link:hover{color:var(--t1);background:rgba(255,255,255,.05);}
.nav-link.active{color:var(--t1);}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px rgba(43,232,197,.65);
}
.header-actions{display:flex;align-items:center;gap:14px;}
.header-quiet{font-size:14px;color:var(--t2);transition:color var(--ease);}
.header-quiet:hover{color:var(--primary);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-weight:600;font-size:15px;
  padding:12px 22px;border:1px solid transparent;
  transition:transform var(--ease),background var(--ease),box-shadow var(--ease),color var(--ease),border-color var(--ease);
  cursor:pointer;
}
.btn-primary{
  background:var(--primary);color:#04140F;
  box-shadow:0 0 0 1px rgba(43,232,197,.35),0 10px 30px rgba(43,232,197,.25);
}
.btn-primary:hover{
  background:#3ff0cf;transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(43,232,197,.5),0 14px 34px rgba(43,232,197,.34);
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--t1);}
.btn-ghost:hover{border-color:rgba(43,232,197,.55);color:var(--primary);transform:translateY(-2px);}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary);font-weight:600;}
.link-arrow svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform var(--ease);}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:clamp(32px,5vw,58px) 0 clamp(38px,6vw,64px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:24px;flex-wrap:wrap;}
.crumb a{transition:color var(--ease);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:rgba(255,255,255,.22);}
.crumb .current{color:var(--t2);}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:clamp(26px,4vw,56px);align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.04em;padding:6px 14px;border-radius:999px;
  background:rgba(43,232,197,.12);color:var(--primary);
  border:1px solid rgba(43,232,197,.28);margin-bottom:18px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(43,232,197,.9);}
h1{font-size:clamp(28px,4.2vw,46px);line-height:1.25;letter-spacing:.01em;margin-bottom:18px;}
h1 em{font-style:normal;color:var(--primary);}
.lead{font-size:16.5px;line-height:1.92;color:var(--t2);max-width:62ch;}
.lead + .lead{margin-top:12px;}
.hero-figure{
  position:relative;border-radius:var(--r-panel);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-2);
}
.hero-figure img{width:100%;height:100%;aspect-ratio:16/11;object-fit:cover;}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,18,0) 38%,rgba(7,10,18,.82));
}
.figure-note{position:absolute;left:18px;right:18px;bottom:16px;z-index:2;}
.figure-note strong{display:block;font-size:14.5px;font-weight:600;color:var(--t1);}
.figure-note span{display:block;font-size:12.5px;color:var(--t2);margin-top:2px;}
.figure-badge{
  position:absolute;top:16px;left:16px;z-index:2;
  font-size:12px;padding:5px 12px;border-radius:999px;
  background:rgba(255,177,61,.16);color:var(--accent);border:1px solid rgba(255,177,61,.42);
  backdrop-filter:blur(8px);
}

/* ---------- tag cloud ---------- */
.tagcloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:clamp(26px,4vw,42px);}
.tag{
  padding:8px 15px;border-radius:999px;font-size:13.5px;color:var(--t2);
  border:1px solid var(--line);background:rgba(255,255,255,.045);
  transition:color var(--ease),border-color var(--ease),background var(--ease),transform var(--ease);
}
.tag:hover{
  border-color:rgba(43,232,197,.5);color:var(--primary);
  background:rgba(43,232,197,.08);transform:translateY(-2px);
}
.tag.hot{border-color:rgba(255,177,61,.4);color:var(--accent);background:rgba(255,177,61,.1);}
.tag.hot:hover{border-color:rgba(255,177,61,.66);color:#ffc36a;background:rgba(255,177,61,.16);}

/* ---------- sections ---------- */
.section{padding:clamp(46px,7vw,88px) 0;position:relative;}
.section-alt{
  background:var(--bg-1);
  border-top:1px solid rgba(255,255,255,.06);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:clamp(24px,3.4vw,38px);}
.section-head h2{font-size:clamp(22px,2.6vw,32px);}
.section-head p{margin-top:10px;color:var(--t2);font-size:15px;max-width:62ch;line-height:1.85;}
.head-tag{
  font-size:12.5px;color:var(--primary);border:1px solid rgba(43,232,197,.32);
  background:rgba(43,232,197,.1);border-radius:999px;padding:6px 14px;white-space:nowrap;
}

/* ---------- wide list ---------- */
.wide-list{border-top:1px solid rgba(255,255,255,.09);}
.row-item{
  display:grid;grid-template-columns:62px 1fr 30px;gap:clamp(12px,2vw,26px);
  align-items:start;padding:24px clamp(6px,1.4vw,14px);
  border-bottom:1px solid rgba(255,255,255,.07);
  transition:background var(--ease),border-color var(--ease);
  border-radius:12px;
}
.row-item:hover{background:rgba(255,255,255,.04);border-bottom-color:rgba(43,232,197,.28);}
.row-num{
  font-size:15px;font-weight:700;color:var(--t3);letter-spacing:.02em;
  font-variant-numeric:tabular-nums;padding-top:2px;transition:color var(--ease);
}
.row-item:hover .row-num{color:var(--primary);}
.row-body h3{font-size:17.5px;font-weight:600;line-height:1.55;margin-bottom:8px;}
.row-body h3 span{color:var(--t3);font-weight:500;font-size:14px;margin-left:10px;}
.row-body p{font-size:14.6px;color:var(--t2);line-height:1.82;max-width:70ch;}
.row-arrow{
  justify-self:end;align-self:center;width:30px;height:30px;border-radius:50%;
  display:grid;place-items:center;border:1px solid var(--line);color:var(--t3);
  transition:color var(--ease),border-color var(--ease),transform var(--ease);
}
.row-arrow svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.row-item:hover .row-arrow{border-color:rgba(43,232,197,.55);color:var(--primary);transform:translateX(4px);}

/* ---------- note strip ---------- */
.note-strip{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;
  margin-bottom:clamp(26px,3.4vw,38px);
}
.note-card{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
  padding:20px 22px;box-shadow:var(--shadow-1);
  transition:border-color var(--ease),transform var(--ease);
}
.note-card:hover{border-color:var(--line-strong);transform:translateY(-2px);}
.note-card .k{font-size:26px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.note-card .t{font-size:14px;color:var(--t2);margin-top:6px;line-height:1.75;}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px;}
.faq-item{
  border:1px solid var(--line);border-radius:16px;overflow:hidden;
  background:linear-gradient(160deg,rgba(255,255,255,.062),rgba(255,255,255,.024));
  transition:border-color var(--ease),background var(--ease);
}
.faq-item.open{border-color:rgba(43,232,197,.38);background:linear-gradient(160deg,rgba(43,232,197,.08),rgba(255,255,255,.028));}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:17px 22px;background:transparent;border:0;text-align:left;
  font-size:15.5px;font-weight:600;color:var(--t1);cursor:pointer;
}
.faq-q .plus{
  flex:none;width:24px;height:24px;position:relative;border-radius:50%;
  border:1px solid var(--line);transition:transform var(--ease),border-color var(--ease);
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--t2);border-radius:2px;
  transform:translate(-50%,-50%);transition:background var(--ease);
}
.faq-q .plus::before{width:11px;height:1.6px;}
.faq-q .plus::after{width:1.6px;height:11px;}
.faq-item.open .faq-q .plus{transform:rotate(45deg);border-color:rgba(43,232,197,.6);}
.faq-item.open .faq-q .plus::before,.faq-item.open .faq-q .plus::after{background:var(--primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 280ms cubic-bezier(.2,.7,.3,1);}
.faq-a p{padding:0 22px 20px;font-size:14.8px;color:var(--t2);line-height:1.88;}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;
  border:1px solid rgba(43,232,197,.28);
  background:linear-gradient(150deg,rgba(43,232,197,.14),rgba(17,24,41,.92) 52%,rgba(124,92,255,.16));
  padding:clamp(28px,4.6vw,52px);
  box-shadow:0 0 0 1px rgba(43,232,197,.12),0 18px 46px rgba(0,0,0,.45);
  display:grid;grid-template-columns:1.25fr .75fr;gap:clamp(22px,3vw,40px);align-items:center;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;}
.cta-band p{color:var(--t2);font-size:15px;line-height:1.88;max-width:56ch;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px;}
.cta-figure{
  position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid rgba(255,255,255,.12);
}
.cta-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.cta-figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,10,18,.05),rgba(7,10,18,.7));}

/* ---------- footer ---------- */
.site-footer{
  background:var(--bg-1);border-top:1px solid var(--line);
  padding:clamp(40px,6vw,68px) 0 26px;margin-top:clamp(40px,6vw,72px);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:clamp(24px,3vw,44px);}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--t2);line-height:1.85;max-width:36ch;}
.footer-title{font-size:14px;font-weight:600;color:var(--t1);margin-bottom:14px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:10px;font-size:14px;}
.footer-links a{color:var(--t2);display:inline-block;transition:color var(--ease),transform var(--ease);}
.footer-links a:hover{color:var(--primary);transform:translateX(2px);}
.footer-meta p{margin-bottom:10px;font-size:13.5px;color:var(--t2);}
.footer-meta strong{color:var(--t1);font-weight:600;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:clamp(28px,4vw,44px);padding-top:20px;border-top:1px solid rgba(255,255,255,.07);
  font-size:12.5px;color:var(--t3);
}

/* ---------- mobile tab ---------- */
.mobile-tab{display:none;}
@media (max-width:1023px){
  .mobile-tab{
    display:block;position:fixed;left:0;right:0;bottom:0;z-index:90;
    background:rgba(12,17,32,.94);
    backdrop-filter:blur(16px) saturate(120%);
    -webkit-backdrop-filter:blur(16px) saturate(120%);
    border-top:1px solid var(--line);
    padding:7px 4px calc(7px + env(safe-area-inset-bottom));
  }
  .tab-inner{display:grid;grid-template-columns:repeat(6,1fr);gap:2px;}
  .tab-item{
    display:flex;flex-direction:column;align-items:center;gap:3px;position:relative;
    padding:5px 1px;border-radius:10px;font-size:10px;color:var(--t3);
    transition:color var(--ease);
  }
  .tab-item svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
  .tab-item.active{color:var(--primary);}
  .tab-item.active::before{
    content:"";position:absolute;top:-7px;left:50%;transform:translateX(-50%);
    width:24px;height:3px;border-radius:0 0 3px 3px;background:var(--primary);
    box-shadow:0 0 12px rgba(43,232,197,.7);
  }
  body{padding-bottom:82px;}
  .nav-links,.header-actions{display:none;}
  .hero-grid{grid-template-columns:1fr;}
  .note-strip{grid-template-columns:1fr 1fr;}
  .cta-band{grid-template-columns:1fr;}
  .cta-figure{order:-1;}
  .cta-figure img{aspect-ratio:16/9;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:640px){
  .row-item{grid-template-columns:34px 1fr;padding:22px 4px;}
  .row-arrow{display:none;}
  .row-body h3{font-size:16px;}
  .row-body p{font-size:14px;}
  .note-strip{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .faq-q{font-size:14.8px;padding:15px 16px;}
  .faq-a p{padding:0 16px 18px;font-size:14.2px;}
  .brand{font-size:15.5px;}
  .tab-inner{grid-template-columns:repeat(6,1fr);}
  .tab-item{font-size:9.5px;}
  .tab-item svg{width:18px;height:18px;}
  .cta-actions .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}