/* roulang page: index */
:root{
  --bg-0:#05070D; --bg-1:#0A1220; --bg-2:#0F1B2E;
  --glass:rgba(255,255,255,.05); --glass-line:rgba(140,200,255,.14); --glass-line-2:rgba(140,200,255,.28);
  --txt:#E8F1FB; --txt-2:#A8B8CC; --txt-3:#6E8299;
  --brand:#2FD3FF; --brand-strong:#0FB6E8; --accent:#FF7A2F;
  --success:#34D399; --warn:#FBBF24; --error:#F87171;
  --r-card:18px; --r-sm:12px; --r-img:16px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(0,0,0,.4);
  --sh-2:0 8px 24px -8px rgba(0,0,0,.5);
  --sh-3:0 24px 60px -24px rgba(0,0,0,.65);
  --glow:0 0 0 1px rgba(47,211,255,.35), 0 10px 34px -10px rgba(47,211,255,.55);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sec-y:clamp(64px,8vw,120px);
  --num-font:"Rajdhani","Barlow Semi Condensed",ui-monospace,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;
  background:
    radial-gradient(1200px 600px at 78% -8%, rgba(47,211,255,.12), transparent 60%),
    radial-gradient(900px 520px at 8% 12%, rgba(255,122,47,.08), transparent 62%),
    linear-gradient(180deg,var(--bg-0),var(--bg-1) 45%,var(--bg-0));
  background-attachment:fixed;
  color:var(--txt);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.8;letter-spacing:.01em;
  padding-bottom:0;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:650;line-height:1.25;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(47,211,255,.3);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-0)}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,rgba(47,211,255,.5),rgba(15,182,232,.25));border-radius:999px;border:2px solid var(--bg-0)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--sec-y) 0;position:relative}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--brand);letter-spacing:.14em;text-transform:uppercase;margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--brand),transparent)}
h2.sec-title{font-size:clamp(24px,2.8vw,36px)}
.sec-sub{color:var(--txt-2);font-size:15px;max-width:640px;margin-top:12px}
.muted{color:var(--txt-3)}
.num{font-family:var(--num-font);font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- Dock 导航 ---------- */
.dock-wrap{position:fixed;top:18px;left:0;right:0;z-index:90;display:flex;justify-content:center;padding:0 20px;pointer-events:none}
.dock{
  pointer-events:auto;width:100%;max-width:1180px;
  display:flex;align-items:center;gap:18px;
  padding:10px 12px 10px 18px;border-radius:var(--r-pill);
  background:linear-gradient(180deg,rgba(16,28,48,.86),rgba(8,14,26,.72));
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-3),inset 0 1px 0 rgba(255,255,255,.06);
  transition:opacity .3s var(--ease),transform .3s var(--ease),background .3s var(--ease);
}
.dock::after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;background:linear-gradient(90deg,transparent,rgba(47,211,255,.14),transparent);opacity:0;transition:opacity .3s var(--ease)}
.dock-wrap.scrolled .dock{opacity:.94;transform:translateY(-2px)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;font-weight:700;font-size:17px;letter-spacing:.02em}
.brand-mark{
  width:32px;height:32px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--brand),var(--brand-strong) 55%,#0a6f95);
  box-shadow:0 0 0 1px rgba(47,211,255,.4),0 8px 20px -8px rgba(47,211,255,.8);
  position:relative;
}
.brand-mark::before{content:"";position:absolute;inset:9px 8px;border-radius:4px;background:rgba(5,7,13,.85);clip-path:polygon(0 0,100% 50%,0 100%);}
.brand span.bn{white-space:nowrap}
.dock-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.dock-nav a{
  position:relative;padding:9px 14px;border-radius:var(--r-pill);font-size:14.5px;color:var(--txt-2);
  transition:color .22s var(--ease),background .22s var(--ease);
  white-space:nowrap;
}
.dock-nav a:hover{color:var(--txt);background:rgba(255,255,255,.06)}
.dock-nav a.active{color:#031018;background:linear-gradient(180deg,rgba(47,211,255,.95),rgba(15,182,232,.9));box-shadow:0 8px 22px -10px rgba(47,211,255,.85)}
.dock-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);display:grid;place-items:center;
  border:1px solid var(--glass-line);background:var(--glass);color:var(--txt-2);
  transition:all .22s var(--ease);
}
.icon-btn:hover{color:var(--txt);border-color:var(--glass-line-2);background:rgba(255,255,255,.09)}
.icon-btn svg{width:18px;height:18px}
.search-pop{
  position:absolute;top:calc(100% + 12px);right:18px;width:320px;max-width:calc(100vw - 48px);
  padding:16px;border-radius:var(--r-card);background:linear-gradient(180deg,rgba(16,28,48,.96),rgba(8,14,26,.94));
  border:1px solid var(--glass-line);box-shadow:var(--sh-3);display:none;
}
.search-pop.open{display:block;animation:fadeUp .28s var(--ease)}
.search-pop label{display:block;font-size:13px;color:var(--txt-3);margin-bottom:8px}
.field{
  width:100%;padding:12px 14px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.05);border:1px solid var(--glass-line);color:var(--txt);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.field::placeholder{color:var(--txt-3)}
.field:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,211,255,.18)}
.field-hint{font-size:12.5px;color:var(--txt-3);margin-top:8px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.02em;cursor:pointer;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),filter .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease);
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-strong) 65%,#0a8fbd);
  color:#02141d;box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(47,211,255,.5),0 16px 40px -12px rgba(47,211,255,.7)}
.btn-ghost{
  background:var(--glass);border-color:var(--glass-line);color:var(--txt);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:var(--glass-line-2);transform:translateY(-2px)}
.btn-accent{background:linear-gradient(135deg,var(--accent),#e85f14);color:#1b0a02;box-shadow:0 10px 30px -12px rgba(255,122,47,.8)}
.btn-accent:hover{filter:brightness(1.07);transform:translateY(-2px)}
.btn:active{transform:scale(.98)}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.4;box-shadow:none;pointer-events:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14.5px;font-weight:600;transition:gap .22s var(--ease),color .22s var(--ease)}
.link-arrow:hover{gap:11px;color:#7ce4ff}
.link-arrow::after{content:"→";font-size:15px}

/* ---------- Hero ---------- */
.hero{position:relative;padding:148px 0 76px;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.5}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,13,.72),rgba(5,7,13,.88) 55%,var(--bg-0)),
             radial-gradient(700px 380px at 82% 30%, rgba(47,211,255,.16), transparent 70%);
}
.hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px;align-items:center}
.hero h1{font-size:clamp(30px,4.4vw,52px);font-weight:700;letter-spacing:.005em}
.hero h1 em{font-style:normal;background:linear-gradient(100deg,var(--brand),#9be9ff 45%,var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{margin-top:20px;font-size:17px;color:var(--txt-2);max-width:560px}
.hero-cta{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.hero-stats{
  margin-top:56px;display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
  padding:22px 26px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);box-shadow:var(--sh-2);
}
.hero-stats .st b{display:block;font-family:var(--num-font);font-size:clamp(24px,2.6vw,32px);color:var(--brand);font-weight:700;line-height:1.1}
.hero-stats .st span{font-size:13.5px;color:var(--txt-2)}
.hero-stats .st + .st{border-left:1px solid var(--glass-line);padding-left:18px}
.hero-art{position:relative;height:380px;border-radius:26px;overflow:hidden;border:1px solid var(--glass-line);box-shadow:var(--sh-3)}
.hero-art img{width:100%;height:100%;object-fit:cover;object-position:center}
.hero-art::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,7,13,.05),rgba(5,7,13,.75))}
.hero-art .tag{
  position:absolute;left:18px;bottom:18px;z-index:2;
  padding:8px 16px;border-radius:var(--r-pill);font-size:13px;color:var(--txt);
  background:rgba(9,16,30,.7);border:1px solid var(--glass-line-2);backdrop-filter:blur(8px);
}
.arc{position:absolute;top:-40px;right:-40px;width:260px;height:260px;border-radius:50%;border:1px solid rgba(47,211,255,.28);z-index:2;pointer-events:none}
.arc::before{content:"";position:absolute;inset:38px;border-radius:50%;border:1px dashed rgba(255,122,47,.3)}

/* ---------- Bento 功能 ---------- */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:22px}
.bento-item{
  position:relative;padding:28px;border-radius:var(--r-card);
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.025));
  border:1px solid var(--glass-line);backdrop-filter:blur(14px);
  box-shadow:var(--sh-2);overflow:hidden;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.bento-item::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(47,211,255,.6),transparent);opacity:.7}
.bento-item:hover{transform:translateY(-4px);border-color:var(--glass-line-2);box-shadow:var(--sh-3)}
.bento-item.wide{grid-column:span 4;display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:26px;align-items:center;padding:32px}
.bento-item.third{grid-column:span 2}
.bento-item.half{grid-column:span 3}
.bento-item .idx{font-family:var(--num-font);font-size:26px;color:rgba(47,211,255,.75);font-weight:600;letter-spacing:.06em}
.bento-item h3{font-size:20px;margin:14px 0 10px}
.bento-item p{color:var(--txt-2);font-size:15px}
.bento-item .link-arrow{margin-top:18px}
.bento-media{border-radius:var(--r-img);overflow:hidden;aspect-ratio:4/3;border:1px solid var(--glass-line)}
.bento-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.bento-item:hover .bento-media img{transform:scale(1.04)}

/* ---------- 使用场景 ---------- */
.scene-wrap{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:44px;align-items:start}
.rail{position:relative;padding-left:28px}
.rail::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--brand),rgba(47,211,255,.08))}
.rail-node{position:relative;padding-bottom:36px}
.rail-node:last-child{padding-bottom:0}
.rail-node::before{content:"";position:absolute;left:-28px;top:9px;width:16px;height:16px;border-radius:50%;background:var(--bg-0);border:2px solid var(--brand);box-shadow:0 0 0 4px rgba(47,211,255,.14)}
.rail-node .step{font-family:var(--num-font);font-size:13px;color:var(--accent);letter-spacing:.16em}
.rail-node h3{font-size:20px;margin:8px 0 10px}
.rail-node p{color:var(--txt-2);font-size:15px}
.rail-node .link-arrow{margin-top:14px}
.scene-side{position:sticky;top:110px;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--glass-line);box-shadow:var(--sh-3)}
.scene-side img{width:100%;aspect-ratio:4/3;object-fit:cover;opacity:.9}
.scene-side .cap{padding:20px 22px;background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02))}
.scene-side .cap b{display:block;font-size:15.5px;margin-bottom:6px}
.scene-side .cap span{font-size:13.5px;color:var(--txt-3)}

/* ---------- 案例 ---------- */
.case-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:22px}
.case-main{
  position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--glass-line);
  box-shadow:var(--sh-3);min-height:340px;display:flex;flex-direction:column;justify-content:flex-end;
}
.case-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42}
.case-main::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,7,13,.35),rgba(5,7,13,.92))}
.case-main .inner{position:relative;z-index:2;padding:34px}
.case-main blockquote{margin:0 0 22px;font-size:19px;line-height:1.75;color:var(--txt)}
.case-main .src{font-size:13.5px;color:var(--txt-3);margin-top:14px}
.metric-row{display:flex;gap:34px;flex-wrap:wrap;padding-top:18px;border-top:1px solid var(--glass-line)}
.metric-row div b{display:block;font-family:var(--num-font);font-size:clamp(26px,3vw,38px);color:var(--brand);font-weight:700;line-height:1.1}
.metric-row div span{font-size:13px;color:var(--txt-2)}
.case-side{display:flex;flex-direction:column;gap:22px}
.case-strip{
  flex:1;display:flex;flex-direction:column;justify-content:space-between;gap:14px;
  padding:24px;border-radius:var(--r-card);background:var(--glass);border:1px solid var(--glass-line);
  backdrop-filter:blur(12px);box-shadow:var(--sh-2);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.case-strip:hover{transform:translateY(-4px);border-color:var(--glass-line-2)}
.case-strip b{font-family:var(--num-font);font-size:clamp(26px,3vw,34px);color:var(--accent);font-weight:700;line-height:1.05}
.case-strip span{font-size:14px;color:var(--txt-2)}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);
  font-size:12.5px;color:var(--brand);background:rgba(47,211,255,.1);border:1px solid rgba(47,211,255,.28);
}
.badge.alt{color:var(--accent);background:rgba(255,122,47,.1);border-color:rgba(255,122,47,.3)}

/* ---------- 资讯 / CMS ---------- */
.news-grid{display:grid;grid-template-columns:minmax(0,1.32fr) minmax(0,1fr);gap:24px;align-items:start}
.news-hero{
  display:block;border-radius:var(--r-card);overflow:hidden;background:var(--glass);
  border:1px solid var(--glass-line);box-shadow:var(--sh-3);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.news-hero:hover{transform:translateY(-4px);border-color:var(--glass-line-2)}
.news-hero .thumb{aspect-ratio:16/9;overflow:hidden}
.news-hero .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.news-hero:hover .thumb img{transform:scale(1.03)}
.news-hero .body{padding:26px}
.news-hero h3{font-size:22px;margin:14px 0 12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-hero:hover h3{color:var(--brand)}
.news-hero p{color:var(--txt-2);font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta-row{display:flex;align-items:center;gap:14px;margin-top:18px;font-size:13px;color:var(--txt-3)}
.news-list{display:flex;flex-direction:column;gap:16px}
.news-item{
  display:block;padding:20px 22px;border-radius:var(--r-card);background:var(--glass);
  border:1px solid var(--glass-line);backdrop-filter:blur(12px);
  transition:transform .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.news-item:hover{transform:translateY(-4px);border-color:var(--glass-line-2);background:rgba(255,255,255,.08)}
.news-item h4{font-size:16.5px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item:hover h4{color:var(--brand)}
.news-item .meta-row{margin-top:12px}
.empty-state{
  padding:44px 28px;border-radius:var(--r-card);border:1px dashed var(--glass-line-2);
  background:rgba(255,255,255,.03);text-align:center;
}
.empty-state .ico{width:46px;height:46px;margin:0 auto 14px;border-radius:14px;display:grid;place-items:center;background:rgba(47,211,255,.1);border:1px solid rgba(47,211,255,.28);color:var(--brand);font-size:20px}
.empty-state p{color:var(--txt-2);margin-bottom:18px}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:start}
.price-card{
  position:relative;padding:30px 26px;border-radius:var(--r-card);
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.02));
  border:1px solid var(--glass-line);backdrop-filter:blur(14px);box-shadow:var(--sh-2);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.price-card:hover{transform:translateY(-4px);border-color:var(--glass-line-2)}
.price-card.featured{
  margin-top:-20px;padding-top:38px;
  border-color:rgba(47,211,255,.5);
  background:linear-gradient(180deg,rgba(47,211,255,.11),rgba(255,255,255,.025));
  box-shadow:0 0 0 1px rgba(47,211,255,.35),0 30px 70px -30px rgba(47,211,255,.6);
}
.price-card.featured::before{content:"";position:absolute;top:0;left:20px;right:20px;height:2px;border-radius:2px;background:linear-gradient(90deg,transparent,var(--brand),var(--accent),transparent)}
.price-card .plan{font-size:15px;color:var(--txt-2)}
.price-card .amount{margin:14px 0 6px;font-family:var(--num-font);font-weight:700;font-size:clamp(30px,3.6vw,44px);color:var(--txt);line-height:1}
.price-card.featured .amount{color:var(--brand)}
.price-card .amount small{font-size:14px;color:var(--txt-3);font-family:inherit;font-weight:400;margin-left:6px}
.price-card .note{font-size:13.5px;color:var(--txt-3);margin-bottom:22px}
.feat-list{display:flex;flex-direction:column;gap:12px;margin:0 0 26px;padding-top:20px;border-top:1px solid var(--glass-line)}
.feat-list li{display:flex;gap:10px;font-size:14.5px;color:var(--txt-2)}
.feat-list li::before{content:"✓";flex:0 0 auto;width:18px;height:18px;border-radius:50%;display:grid;place-items:center;font-size:11px;color:#02141d;background:linear-gradient(135deg,var(--brand),var(--brand-strong));margin-top:4px}
.flag{position:absolute;top:16px;right:18px}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px;margin:0 auto}
.faq-item{
  border-radius:var(--r-card);background:var(--glass);border:1px solid var(--glass-line);
  backdrop-filter:blur(12px);overflow:hidden;transition:border-color .22s var(--ease),background .22s var(--ease);
}
.faq-item.open{border-color:var(--glass-line-2);background:rgba(255,255,255,.075)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:16.5px;font-weight:600;color:var(--txt);
  min-height:44px;
}
.faq-q .ic{flex:0 0 auto;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--glass-line-2);color:var(--brand);font-size:16px;line-height:1;transition:transform .3s var(--ease),background .22s var(--ease)}
.faq-item.open .faq-q .ic{transform:rotate(45deg);background:rgba(47,211,255,.16)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .38s var(--ease)}
.faq-a p{padding:0 24px 22px;color:var(--txt-2);font-size:15px;border-top:1px solid var(--glass-line);padding-top:16px;margin:0 24px 0;padding-left:0;padding-right:0}

/* ---------- CTA ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:38px 40px;border-radius:24px;
  background:linear-gradient(120deg,rgba(47,211,255,.12),rgba(255,122,47,.09)),rgba(255,255,255,.04);
  border:1px solid var(--glass-line-2);backdrop-filter:blur(14px);
  box-shadow:var(--sh-3);
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px)}
.cta-band p{color:var(--txt-2);font-size:15px;margin-top:10px;max-width:560px}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:var(--sec-y);border-top:1px solid var(--glass-line);background:linear-gradient(180deg,rgba(10,18,32,.6),rgba(5,7,13,.95));padding:64px 0 26px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px}
.foot-brand .brand{margin-bottom:16px;font-size:18px}
.foot-brand p{color:var(--txt-2);font-size:14px;max-width:320px}
.foot-col h4{font-size:15px;margin-bottom:16px;color:var(--txt)}
.foot-col ul{display:flex;flex-direction:column;gap:11px}
.foot-col a{color:var(--txt-2);font-size:14px;transition:color .22s var(--ease),padding-left .22s var(--ease)}
.foot-col a:hover{color:var(--brand);padding-left:4px}
.foot-col .txt{color:var(--txt-3);font-size:14px}
.foot-bottom{margin-top:44px;padding-top:22px;border-top:1px solid var(--glass-line);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--txt-3)}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;z-index:80;width:48px;height:48px;border-radius:50%;
  display:grid;place-items:center;background:rgba(12,22,38,.85);border:1px solid var(--glass-line-2);
  color:var(--brand);backdrop-filter:blur(12px);box-shadow:var(--sh-2);
  opacity:0;pointer-events:none;transition:opacity .3s var(--ease),transform .3s var(--ease);
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{transform:translateY(-3px)}

/* ---------- 移动 dock / 抽屉 ---------- */
.mobile-dock{
  position:fixed;left:12px;right:12px;bottom:12px;z-index:95;display:none;
  padding:8px;border-radius:22px;background:linear-gradient(180deg,rgba(16,28,48,.94),rgba(8,14,26,.9));
  border:1px solid var(--glass-line);backdrop-filter:blur(14px);box-shadow:var(--sh-3);
}
.mobile-dock ul{display:flex;justify-content:space-between}
.mobile-dock a{display:flex;flex-direction:column;align-items:center;gap:3px;padding:8px 6px;border-radius:14px;font-size:11.5px;color:var(--txt-2);min-width:56px;min-height:44px;justify-content:center}
.mobile-dock a.active{color:#031018;background:linear-gradient(180deg,rgba(47,211,255,.95),rgba(15,182,232,.9))}
.mobile-dock a svg{width:19px;height:19px}
.drawer-mask{position:fixed;inset:0;background:rgba(3,6,12,.7);backdrop-filter:blur(3px);z-index:98;opacity:0;pointer-events:none;transition:opacity .3s var(--ease)}
.drawer-mask.show{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:99;
  padding:26px 22px;background:linear-gradient(180deg,rgba(13,23,40,.99),rgba(5,7,13,.99));
  border-left:1px solid var(--glass-line);transform:translateX(101%);transition:transform .34s var(--ease);
  display:flex;flex-direction:column;gap:10px;overflow-y:auto;
}
.drawer.show{transform:translateX(0)}
.drawer h4{font-size:14px;color:var(--txt-3);letter-spacing:.14em;margin:6px 0 12px}
.drawer a.d-link{padding:14px 16px;border-radius:14px;border:1px solid var(--glass-line);background:var(--glass);font-size:15px;min-height:44px;display:flex;align-items:center}
.drawer a.d-link.active{color:#031018;background:linear-gradient(180deg,rgba(47,211,255,.95),rgba(15,182,232,.9));border-color:transparent}
.drawer .close{align-self:flex-end;width:42px;height:42px;border-radius:50%;border:1px solid var(--glass-line);display:grid;place-items:center;color:var(--txt-2)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}
@keyframes fadeUp{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ---------- 断点 ---------- */
@media (max-width:1023px){
  .container{padding:0 24px}
  .dock-nav{display:none}
  .hero{padding:130px 0 60px}
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .hero-art{height:300px}
  .bento{grid-template-columns:repeat(4,1fr)}
  .bento-item.wide{grid-column:span 4;grid-template-columns:1fr}
  .bento-item.third,.bento-item.half{grid-column:span 2}
  .scene-wrap{grid-template-columns:1fr}
  .scene-side{position:static}
  .case-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .price-grid{grid-template-columns:1fr;gap:18px}
  .price-card.featured{margin-top:0}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  body{padding-bottom:92px}
  .dock-wrap{display:none}
  .mobile-dock{display:block}
  .section{padding:clamp(56px,10vw,84px) 0}
  .hero{padding:84px 0 52px}
  .hero-stats{grid-template-columns:1fr;gap:14px;padding:20px}
  .hero-stats .st + .st{border-left:0;padding-left:0;border-top:1px solid var(--glass-line);padding-top:14px}
  .case-main .inner{padding:24px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 24px}
  .to-top{bottom:100px;right:16px;width:44px;height:44px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .bento{grid-template-columns:1fr}
  .bento-item.wide,.bento-item.third,.bento-item.half{grid-column:span 1}
  .bento-item.wide{padding:26px}
  .foot-grid{grid-template-columns:1fr}
  .hero-cta .btn{width:100%}
  .metric-row{gap:22px}
  .faq-q{padding:18px 18px;font-size:15.5px}
  .faq-a p{margin:0 18px;padding:14px 0 20px}
}

/* roulang page: article */
:root{
  --bg-0:#05070D;
  --bg-1:#0A1220;
  --bg-2:#0F1B2E;
  --glass:rgba(255,255,255,.05);
  --glass-line:rgba(140,200,255,.14);
  --glass-strong:rgba(255,255,255,.08);
  --txt:#E8F1FB;
  --txt-2:#A8B8CC;
  --txt-3:#6E8299;
  --brand:#2FD3FF;
  --brand-strong:#0FB6E8;
  --accent:#FF7A2F;
  --success:#34D399;
  --warn:#FBBF24;
  --error:#F87171;
  --r-card:18px;
  --r-sm:12px;
  --r-img:20px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(0,0,0,.4);
  --shadow-2:0 8px 24px -8px rgba(0,0,0,.5);
  --shadow-3:0 24px 60px -24px rgba(0,0,0,.65);
  --glow:0 0 0 1px rgba(47,211,255,.35), 0 10px 34px -10px rgba(47,211,255,.55);
  --ease:cubic-bezier(.22,.61,.36,1);
  --t:220ms cubic-bezier(.22,.61,.36,1);
  --sect:clamp(56px, 7vw, 104px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:
    radial-gradient(900px 520px at 82% -8%, rgba(47,211,255,.14), transparent 62%),
    radial-gradient(760px 460px at 6% 8%, rgba(255,122,47,.10), transparent 60%),
    linear-gradient(180deg, var(--bg-1) 0%, var(--bg-0) 42%, var(--bg-0) 100%);
  background-attachment:fixed;
  color:var(--txt);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  padding-top:96px;
  padding-bottom:12px;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
input{font:inherit}
::selection{background:rgba(47,211,255,.28);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#070c15}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,rgba(47,211,255,.5),rgba(47,211,255,.16));border-radius:999px;border:2px solid #070c15}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--sect) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-title{font-size:clamp(24px,2.8vw,36px)}
.section-sub{color:var(--txt-2);font-size:15px;max-width:640px;margin-top:12px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--brand);padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(47,211,255,.08);border:1px solid rgba(47,211,255,.24);
}
.mono{font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- Dock 导航 ---------- */
.dock{
  position:fixed;top:18px;left:50%;transform:translateX(-50%);
  z-index:60;
  width:min(1200px, calc(100% - 32px));
  display:flex;align-items:center;gap:16px;
  padding:10px 14px;
  background:rgba(10,18,32,.72);
  border:1px solid var(--glass-line);
  border-radius:var(--r-pill);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-2), inset 0 1px 0 rgba(255,255,255,.07);
  transition:opacity var(--t), box-shadow var(--t);
}
.dock.slim{background:rgba(10,18,32,.66);box-shadow:var(--shadow-1)}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:30px;height:30px;border-radius:10px;flex:none;
  background:conic-gradient(from 210deg, var(--brand), #0a6f9c 45%, var(--accent) 78%, var(--brand));
  box-shadow:0 0 0 1px rgba(47,211,255,.4), 0 8px 20px -8px rgba(47,211,255,.8);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:9px;border-radius:4px;
  background:#05070D;opacity:.75;
}
.bn{font-size:17px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
.dock-nav{display:flex;align-items:center;gap:4px;flex:1;justify-content:center;min-width:0}
.dock-nav a{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;
  font-size:14.5px;color:var(--txt-2);border-radius:var(--r-pill);
  white-space:nowrap;position:relative;
  transition:color var(--t), background var(--t);
}
.dock-nav a:hover{color:var(--txt);background:rgba(255,255,255,.06)}
.dock-nav a.active{color:#031420;background:linear-gradient(135deg,var(--brand),var(--brand-strong));box-shadow:0 8px 22px -10px rgba(47,211,255,.85)}
.dock-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.icon-btn{
  width:38px;height:38px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--txt-2);border:1px solid var(--glass-line);background:rgba(255,255,255,.04);
  cursor:pointer;transition:color var(--t), background var(--t), border-color var(--t), transform var(--t);
}
.icon-btn svg{width:18px;height:18px}
.icon-btn:hover{color:var(--brand);border-color:rgba(47,211,255,.45);transform:translateY(-1px)}
.search-pop{
  position:absolute;top:calc(100% + 12px);right:8px;width:min(360px, calc(100vw - 40px));
  display:none;flex-direction:column;gap:8px;padding:16px;
  background:rgba(9,16,29,.96);border:1px solid var(--glass-line);
  border-radius:var(--r-card);box-shadow:var(--shadow-3);
}
.search-pop.show{display:flex}
.search-pop label{font-size:13px;color:var(--txt-3)}
.field{
  width:100%;height:46px;padding:0 14px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.05);border:1px solid var(--glass-line);
  color:var(--txt);transition:border-color var(--t), box-shadow var(--t), background var(--t);
}
.field::placeholder{color:var(--txt-3)}
.field:focus{outline:none;border-color:var(--brand);background:rgba(47,211,255,.06);box-shadow:0 0 0 4px rgba(47,211,255,.14)}
.field-hint{font-size:12.5px;color:var(--txt-3)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform var(--t), box-shadow var(--t), filter var(--t), background var(--t), border-color var(--t), color var(--t);
}
.btn-primary{
  color:#031420;
  background:linear-gradient(135deg,var(--brand),var(--brand-strong));
  box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(47,211,255,.5), 0 18px 40px -14px rgba(47,211,255,.75)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{
  color:var(--txt);background:var(--glass);border:1px solid var(--glass-line);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.btn-ghost:hover{background:rgba(255,255,255,.09);border-color:rgba(47,211,255,.4);transform:translateY(-2px)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px}
.btn-text{color:var(--brand);display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14.5px}
.btn-text .arrow{transition:transform var(--t)}
.btn-text:hover .arrow{transform:translateX(4px)}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  font-size:13.5px;color:var(--txt-3);
  padding:28px 0 0;
}
.breadcrumb a{color:var(--txt-2);transition:color var(--t)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--txt-3);opacity:.7}
.breadcrumb .cur{color:var(--txt-3);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.breadcrumb .cat{color:var(--txt-2)}

/* ---------- 文章头 ---------- */
.article-shell{max-width:900px;margin:0 auto;padding:0 32px}
.article-head{padding:26px 0 8px}
.article-head h1{
  font-size:clamp(27px,3.4vw,42px);
  line-height:1.28;
  margin:16px 0 0;
}
.meta-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px 16px;margin-top:20px;font-size:13.5px;color:var(--txt-3)}
.badge{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12.5px;letter-spacing:.04em;
  border:1px solid var(--glass-line);background:rgba(255,255,255,.05);color:var(--txt-2);
}
.badge-brand{color:var(--brand);border-color:rgba(47,211,255,.34);background:rgba(47,211,255,.09)}
.badge-accent{color:var(--accent);border-color:rgba(255,122,47,.34);background:rgba(255,122,47,.09)}
.meta-dot{width:3px;height:3px;border-radius:50%;background:var(--txt-3);display:inline-block}

.cover-21x9{
  margin:30px 0 8px;border-radius:var(--r-img);overflow:hidden;position:relative;
  aspect-ratio:21/9;background:linear-gradient(135deg,#0d1a2c,#081019);
  border:1px solid var(--glass-line);box-shadow:var(--shadow-2);
}
.cover-21x9 img{width:100%;height:100%;object-fit:cover}
.cover-21x9::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,13,.12),rgba(5,7,13,.62));
}

/* ---------- 正文排版 ---------- */
.article-body{
  max-width:800px;margin:0 auto;
  padding:40px 0 8px;
  font-size:17.5px;line-height:1.9;color:var(--txt-2);
  overflow-wrap:break-word;
}
.article-body p{margin:0 0 1.2em}
.article-body strong{color:var(--txt)}
.article-body h2{
  position:relative;padding-left:20px;margin:2.1em 0 .85em;
  font-size:clamp(21px,2.3vw,28px);color:var(--txt);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--brand),rgba(47,211,255,.05));
}
.article-body h3{font-size:19.5px;color:var(--txt);font-weight:600;margin:1.7em 0 .6em}
.article-body h4{font-size:17px;color:var(--txt);margin:1.4em 0 .5em}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:#7ee4ff}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.35em}
.article-body ul li{list-style:disc;margin:.45em 0}
.article-body ol li{list-style:decimal;margin:.45em 0}
.article-body li::marker{color:var(--brand)}
.article-body img{border-radius:16px;margin:1.5em auto;box-shadow:var(--shadow-2)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--txt-3);text-align:center;margin-top:10px}
.article-body blockquote{
  margin:1.5em 0;padding:18px 22px;
  border-left:3px solid var(--brand);border-radius:0 14px 14px 0;
  background:var(--glass);border-top:1px solid var(--glass-line);
  border-right:1px solid var(--glass-line);border-bottom:1px solid var(--glass-line);
  color:var(--txt-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15.5px;
  display:block;overflow-x:auto;white-space:nowrap;
}
.article-body table th,.article-body table td{
  border:1px solid var(--glass-line);padding:11px 16px;text-align:left;font-weight:400;
}
.article-body table th{background:rgba(47,211,255,.08);color:var(--txt);font-weight:600}
.article-body table tr:nth-child(even) td{background:rgba(255,255,255,.024)}
.article-body hr{border:0;height:1px;background:var(--glass-line);margin:2.4em 0}
.article-body code{
  font-size:.92em;padding:2px 7px;border-radius:6px;
  background:rgba(47,211,255,.1);color:#9fe9ff;border:1px solid rgba(47,211,255,.2);
}

/* ---------- 空态 ---------- */
.empty-state{
  max-width:800px;margin:40px auto 0;padding:48px 28px;text-align:center;
  background:var(--glass);border:1px dashed var(--glass-line);border-radius:var(--r-card);
}
.empty-state p{color:var(--txt-2);margin-bottom:18px;font-size:16px}

/* ---------- 相关推荐 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{
  position:relative;display:flex;flex-direction:column;
  background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r-card);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:transform var(--t), box-shadow var(--t), border-color var(--t);
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.34),transparent);
}
.card:hover{transform:translateY(-4px);border-color:rgba(47,211,255,.42);box-shadow:var(--shadow-2)}
.rel-card .thumb{aspect-ratio:16/9;overflow:hidden;background:#0b1424}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.rel-card:hover .thumb img{transform:scale(1.03)}
.rel-card .rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-card h3{font-size:17.5px;line-height:1.45;transition:color var(--t)}
.rel-card:hover h3{color:var(--brand)}
.rel-card p{font-size:14px;color:var(--txt-3);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--txt-3);padding-top:6px}

/* ---------- CTA 条 ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:26px;
  padding:30px 34px;border-radius:var(--r-card);
  background:linear-gradient(120deg, rgba(47,211,255,.12), rgba(255,255,255,.04) 55%, rgba(255,122,47,.10));
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-2);
}
.cta-band h2{font-size:clamp(19px,2.1vw,25px)}
.cta-band p{color:var(--txt-2);font-size:14.5px;margin-top:8px;max-width:52ch}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--sect);
  border-top:1px solid var(--glass-line);
  background:linear-gradient(180deg, rgba(10,18,32,.5), rgba(5,7,13,.9));
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding:56px 0 36px}
.foot-brand p{color:var(--txt-2);font-size:14px;line-height:1.85;margin-top:16px;max-width:36ch}
.foot-col h4{font-size:14px;letter-spacing:.06em;color:var(--txt);margin-bottom:16px}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a,.foot-col .txt{font-size:14px;color:var(--txt-2);transition:color var(--t)}
.foot-col a:hover{color:var(--brand)}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid var(--glass-line);
  font-size:13px;color:var(--txt-3);
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:70;
  width:46px;height:46px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(10,18,32,.78);border:1px solid var(--glass-line);color:var(--txt-2);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:var(--shadow-2);cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity var(--t), transform var(--t), visibility var(--t), color var(--t), border-color var(--t);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{color:var(--brand);border-color:rgba(47,211,255,.45)}
.to-top svg{width:18px;height:18px}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .dock-nav a{padding:0 12px;font-size:14px}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  body{padding-top:26px;padding-bottom:104px}
  .container{padding:0 20px}
  .article-shell{padding:0 20px}
  .dock{
    top:auto;bottom:14px;left:50%;transform:translateX(-50%);
    width:calc(100% - 20px);padding:8px 10px;gap:8px;
    border-radius:22px;flex-wrap:wrap;
  }
  .dock-nav{
    order:3;width:100%;justify-content:flex-start;
    overflow-x:auto;scrollbar-width:none;padding-bottom:2px;
  }
  .dock-nav::-webkit-scrollbar{display:none}
  .dock-nav a{height:34px;padding:0 12px;font-size:13.5px;background:rgba(255,255,255,.04)}
  .brand{flex:1}
  .bn{font-size:16px}
  .icon-btn{width:34px;height:34px}
  .search-pop{right:0;top:auto;bottom:calc(100% + 12px)}
  .cover-21x9{aspect-ratio:16/9;border-radius:16px}
  .article-body{font-size:17px;line-height:1.88;padding-top:30px}
  .article-body table{white-space:normal;display:block}
  .rel-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px 22px}
  .cta-band .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;padding:40px 0 28px}
  .to-top{right:14px;bottom:112px;width:42px;height:42px}
}
@media (max-width:520px){
  .article-head h1{font-size:24px}
  .breadcrumb .cur{max-width:24ch}
  .btn{min-height:48px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .card:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --bg-0:#05070D;
  --bg-1:#0A1220;
  --bg-2:#0F1B2E;
  --glass:rgba(255,255,255,.05);
  --glass-2:rgba(255,255,255,.08);
  --glass-border:rgba(140,200,255,.14);
  --glass-border-2:rgba(140,200,255,.28);
  --text:#E8F1FB;
  --text-2:#A8B8CC;
  --text-3:#6E8299;
  --brand:#2FD3FF;
  --brand-strong:#0FB6E8;
  --accent:#FF7A2F;
  --success:#34D399;
  --warn:#FBBF24;
  --error:#F87171;
  --r-card:18px;
  --r-sm:12px;
  --r-img:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(0,0,0,.4);
  --sh-2:0 8px 24px -8px rgba(0,0,0,.5);
  --sh-3:0 24px 60px -24px rgba(0,0,0,.65);
  --glow:0 0 0 1px rgba(47,211,255,.35),0 10px 34px -10px rgba(47,211,255,.55);
  --ease:220ms cubic-bezier(.22,.61,.36,1);
  --container:1200px;
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --font-num:"Rajdhani","Barlow Semi Condensed","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  padding:104px 0 0;
  background:
    radial-gradient(1100px 620px at 12% -8%, rgba(47,211,255,.14), transparent 62%),
    radial-gradient(900px 520px at 92% 4%, rgba(255,122,47,.10), transparent 60%),
    linear-gradient(180deg,var(--bg-0) 0%,var(--bg-1) 46%,var(--bg-0) 100%);
  background-attachment:fixed;
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:650;line-height:1.25;letter-spacing:.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(47,211,255,.3);}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:clamp(56px,7vw,104px) 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(47,211,255,.10);
  border:1px solid rgba(47,211,255,.28);
  color:var(--brand);
  font-size:13px;letter-spacing:.08em;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}
.sec-head{max-width:760px;margin-bottom:36px;}
.sec-head h2{font-size:clamp(24px,2.8vw,36px);}
.sec-head p{margin-top:12px;color:var(--text-2);font-size:16px;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.02em;}

/* ============ Dock 导航 ============ */
.dock{
  position:fixed;top:18px;left:50%;transform:translateX(-50%);
  z-index:80;
  display:flex;align-items:center;gap:18px;
  width:min(1180px,calc(100% - 32px));
  padding:10px 14px 10px 18px;
  border-radius:var(--r-pill);
  background:rgba(10,18,32,.74);
  border:1px solid var(--glass-border);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--sh-2);
  transition:background var(--ease),opacity var(--ease),box-shadow var(--ease);
}
.dock::before{
  content:"";position:absolute;inset:1px 1px auto 1px;height:1px;border-radius:var(--r-pill);
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
  pointer-events:none;
}
.dock.is-scrolled{background:rgba(10,18,32,.62);box-shadow:var(--sh-3);}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:30px;height:30px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--brand-strong));
  box-shadow:var(--glow);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:9px;border-radius:3px;
  background:var(--bg-0);opacity:.78;
}
.brand .bn{font-size:17px;font-weight:700;letter-spacing:.02em;white-space:nowrap;}
.dock-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.dock-nav a{
  position:relative;
  padding:8px 14px;border-radius:var(--r-pill);
  color:var(--text-2);font-size:14.5px;white-space:nowrap;
  transition:color var(--ease),background var(--ease);
}
.dock-nav a::after{
  content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  transform:translateX(-50%);transition:width var(--ease);
}
.dock-nav a:hover{color:var(--text);background:rgba(255,255,255,.06);}
.dock-nav a.active{
  color:var(--text);
  background:rgba(47,211,255,.12);
  box-shadow:inset 0 0 0 1px rgba(47,211,255,.34);
}
.dock-nav a.active::after{width:22px;}
.dock-actions{display:flex;align-items:center;gap:8px;flex-shrink:0;}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--r-pill);
  border:1px solid var(--glass-border);background:var(--glass);
  color:var(--text-2);
  transition:color var(--ease),border-color var(--ease),background var(--ease),transform var(--ease);
}
.icon-btn svg{width:18px;height:18px;}
.icon-btn:hover{color:var(--brand);border-color:var(--glass-border-2);background:var(--glass-2);}
.icon-btn:active{transform:scale(.96);}
.menu-btn{display:none;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease),filter var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-strong));
  color:#04121A;
  box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(47,211,255,.5),0 16px 40px -12px rgba(47,211,255,.7);}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{
  background:var(--glass);border:1px solid var(--glass-border);color:var(--text);
}
.btn-ghost:hover{background:var(--glass-2);border-color:var(--glass-border-2);transform:translateY(-2px);}
.btn-ghost:active{transform:scale(.98);}
.btn-sm{min-height:38px;padding:8px 16px;font-size:14px;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);
  font-weight:600;font-size:14.5px;
  transition:gap var(--ease),color var(--ease);
}
.btn-text::after{content:"→";transition:transform var(--ease);}
.btn-text:hover{color:#7FE5FF;gap:10px;}

.search-pop{
  position:absolute;top:calc(100% + 12px);right:0;
  width:min(380px,calc(100vw - 40px));
  padding:16px;border-radius:var(--r-card);
  background:rgba(12,22,38,.96);
  border:1px solid var(--glass-border);
  box-shadow:var(--sh-3);
  display:none;
}
.search-pop.open{display:block;}
.search-pop label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px;}
.field{
  width:100%;min-height:46px;padding:10px 14px;border-radius:var(--r-sm);
  background:var(--glass);border:1px solid var(--glass-border);
  color:var(--text);transition:border-color var(--ease),box-shadow var(--ease);
}
.field::placeholder{color:var(--text-3);}
.field:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,211,255,.18);}
.field-hint{margin-top:8px;font-size:12.5px;color:var(--text-3);}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,6,12,.68);backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);z-index:90;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(320px,84vw);
  background:linear-gradient(180deg,var(--bg-2),var(--bg-0));
  border-left:1px solid var(--glass-border);
  transform:translateX(102%);transition:transform var(--ease);
  z-index:100;padding:26px 22px;display:flex;flex-direction:column;gap:22px;
  box-shadow:var(--sh-3);
}
.drawer.open{transform:translateX(0);}
.drawer h3{font-size:14px;color:var(--text-3);letter-spacing:.1em;}
.drawer nav{display:flex;flex-direction:column;gap:6px;}
.drawer nav a{
  padding:13px 14px;border-radius:var(--r-sm);color:var(--text-2);
  border:1px solid transparent;transition:all var(--ease);
}
.drawer nav a:hover{background:var(--glass);color:var(--text);border-color:var(--glass-border);}
.drawer nav a.active{background:rgba(47,211,255,.12);color:var(--text);border-color:rgba(47,211,255,.34);}
.drawer .btn{margin-top:auto;}

/* ============ 面包屑 ============ */
.crumbs{padding-top:26px;font-size:13.5px;color:var(--text-3);display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.crumbs a{color:var(--text-2);transition:color var(--ease);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:var(--text-3);opacity:.6;}
.crumbs .cur{color:var(--text-3);}

/* ============ 页头 ============ */
.page-hero{padding:34px 0 clamp(40px,5vw,64px);}
.hero-grid{display:grid;grid-template-columns:1.35fr .9fr;gap:40px;align-items:center;}
.page-hero h1{
  margin:18px 0 0;
  font-size:clamp(30px,4.4vw,52px);
  letter-spacing:.005em;
}
.page-hero .lede{
  margin-top:16px;font-size:17px;color:var(--text-2);max-width:56ch;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:var(--r-pill);font-size:13px;
  background:var(--glass);border:1px solid var(--glass-border);color:var(--text-2);
}
.tag b{color:var(--brand);font-weight:600;}
.hero-visual{
  position:relative;border-radius:20px;overflow:hidden;
  border:1px solid var(--glass-border);
  box-shadow:var(--sh-3);
  aspect-ratio:4/3;
  background:linear-gradient(135deg,var(--bg-2),var(--bg-0));
}
.hero-visual img{width:100%;height:100%;object-fit:cover;opacity:.82;}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,13,.15),rgba(5,7,13,.72));
}
.hero-visual .cap{
  position:absolute;left:18px;bottom:16px;right:18px;z-index:2;
  font-size:13px;color:var(--text-2);
}

/* ============ 目录 + 内容流 ============ */
.guide-layout{
  display:grid;grid-template-columns:264px minmax(0,1fr);gap:48px;
  padding-bottom:clamp(56px,7vw,104px);
}
.toc{position:sticky;top:110px;align-self:start;}
.toc-card{
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--glass-border);
  backdrop-filter:blur(14px);
  padding:20px 18px;
  box-shadow:var(--sh-2);
  position:relative;
  overflow:hidden;
}
.toc-card::before{
  content:"";position:absolute;inset:0 0 auto 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.4),transparent);
}
.toc-card h2{font-size:13px;letter-spacing:.12em;color:var(--text-3);margin-bottom:14px;}
.toc-card ol{display:flex;flex-direction:column;gap:2px;counter-reset:toc;}
.toc-card a{
  display:flex;gap:10px;align-items:baseline;
  padding:9px 10px;border-radius:var(--r-sm);
  font-size:14.5px;color:var(--text-2);
  border-left:2px solid transparent;
  transition:all var(--ease);
}
.toc-card a span{font-family:var(--font-num);font-size:12.5px;color:var(--text-3);}
.toc-card a:hover{background:rgba(255,255,255,.05);color:var(--text);border-left-color:rgba(47,211,255,.5);}
.toc-card a.active{
  background:rgba(47,211,255,.10);color:var(--text);
  border-left-color:var(--brand);
  box-shadow:inset 0 0 0 1px rgba(47,211,255,.22);
}
.toc-note{
  margin-top:16px;padding:14px;border-radius:var(--r-sm);
  background:rgba(255,122,47,.08);
  border:1px solid rgba(255,122,47,.24);
  font-size:13px;color:#FFD3B8;line-height:1.7;
}
.toc-note b{color:var(--accent);}

.flow{max-width:820px;}
.flow-block{padding:6px 0 30px;}
.flow-block h2{
  display:flex;align-items:baseline;gap:12px;
  font-size:clamp(21px,2.1vw,27px);
  margin-bottom:16px;
}
.flow-block h2 .idx{
  font-family:var(--font-num);font-size:14px;letter-spacing:.06em;
  color:var(--brand);padding:3px 10px;border-radius:var(--r-pill);
  background:rgba(47,211,255,.10);border:1px solid rgba(47,211,255,.3);
  flex-shrink:0;
}
.flow-block p{color:var(--text-2);font-size:16.5px;margin-bottom:14px;}
.flow-block p strong{color:var(--text);font-weight:600;}
.flow-divider{
  height:1px;border:0;margin:0 0 30px;
  background:linear-gradient(90deg,rgba(140,200,255,.28),rgba(140,200,255,.04));
}
.tick-list{display:flex;flex-direction:column;gap:10px;margin:16px 0 4px;}
.tick-list li{
  position:relative;padding-left:28px;color:var(--text-2);font-size:15.5px;line-height:1.75;
}
.tick-list li::before{
  content:"";position:absolute;left:0;top:9px;width:14px;height:14px;border-radius:5px;
  background:linear-gradient(135deg,var(--brand),var(--brand-strong));
  box-shadow:0 0 10px rgba(47,211,255,.5);
}
.step-list{counter-reset:step;display:flex;flex-direction:column;gap:14px;margin:18px 0 4px;}
.step-list li{
  counter-increment:step;position:relative;
  padding:16px 18px 16px 56px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--glass-border);
  color:var(--text-2);font-size:15.5px;
  transition:border-color var(--ease),transform var(--ease),background var(--ease);
}
.step-list li::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;left:18px;top:15px;
  font-family:var(--font-num);font-size:16px;color:var(--brand);
}
.step-list li b{display:block;color:var(--text);font-weight:600;margin-bottom:4px;}
.step-list li:hover{border-color:var(--glass-border-2);background:var(--glass-2);transform:translateX(3px);}
.note-card{
  display:flex;gap:14px;padding:16px 18px;border-radius:var(--r-card);
  background:rgba(47,211,255,.06);
  border:1px solid rgba(47,211,255,.22);
  color:var(--text-2);font-size:15px;margin:18px 0;
}
.note-card .ic{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;
  display:grid;place-items:center;font-family:var(--font-num);font-size:13px;
  background:rgba(47,211,255,.16);color:var(--brand);border:1px solid rgba(47,211,255,.32);
}
.inline-link{
  color:var(--brand);text-decoration:underline;text-underline-offset:3px;
  text-decoration-color:rgba(47,211,255,.45);transition:color var(--ease);
}
.inline-link:hover{color:#7FE5FF;text-decoration-color:#7FE5FF;}

/* 要点卡 */
.keycard{
  margin-top:36px;padding:28px;border-radius:var(--r-card);
  background:linear-gradient(160deg,rgba(47,211,255,.09),rgba(255,255,255,.03) 45%,rgba(255,122,47,.07));
  border:1px solid var(--glass-border);
  box-shadow:var(--sh-2);position:relative;overflow:hidden;
}
.keycard::before{
  content:"";position:absolute;inset:0 0 auto 0;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  opacity:.85;
}
.keycard > h3{font-size:20px;margin-bottom:6px;}
.keycard > p{color:var(--text-2);font-size:14.5px;margin-bottom:20px;}
.key-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.key-item{
  padding:16px;border-radius:var(--r-sm);
  background:rgba(5,7,13,.45);border:1px solid var(--glass-border);
  transition:transform var(--ease),border-color var(--ease);
}
.key-item:hover{transform:translateY(-4px);border-color:var(--glass-border-2);}
.key-item .k{
  font-family:var(--font-num);font-size:13px;color:var(--accent);letter-spacing:.08em;
}
.key-item h4{font-size:16px;margin:8px 0 6px;}
.key-item p{font-size:14px;color:var(--text-2);line-height:1.7;}

/* ============ CTA 条 ============ */
.cta-band{padding:0 0 clamp(56px,7vw,96px);}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:26px;
  padding:32px 34px;border-radius:var(--r-card);
  background:linear-gradient(120deg,rgba(47,211,255,.12),rgba(255,255,255,.04) 55%,rgba(255,122,47,.10));
  border:1px solid var(--glass-border);
  box-shadow:var(--sh-2);
  position:relative;overflow:hidden;
}
.cta-inner::before{
  content:"";position:absolute;inset:0 0 auto 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.45),transparent);
}
.cta-inner h2{font-size:clamp(20px,2.2vw,26px);margin-bottom:8px;}
.cta-inner p{color:var(--text-2);font-size:15px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--glass-border);
  background:linear-gradient(180deg,rgba(10,18,32,.6),rgba(5,7,13,.95));
  padding:56px 0 28px;
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;}
.foot-brand p{margin-top:16px;color:var(--text-2);font-size:14.5px;max-width:34ch;line-height:1.8;}
.foot-col h4{font-size:14px;color:var(--text);margin-bottom:16px;letter-spacing:.04em;}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col a{color:var(--text-2);font-size:14.5px;transition:color var(--ease),padding-left var(--ease);}
.foot-col a:hover{color:var(--brand);padding-left:4px;}
.foot-col .txt{color:var(--text-2);font-size:14.5px;}
.foot-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(140,200,255,.10);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13.5px;color:var(--text-3);
}

/* 返回顶部 */
.to-top{
  position:fixed;right:24px;bottom:28px;z-index:70;
  width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;
  background:rgba(10,18,32,.82);border:1px solid var(--glass-border);
  backdrop-filter:blur(10px);color:var(--text-2);
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{color:var(--brand);border-color:var(--glass-border-2);transform:translateY(-3px);}

/* 进入视口动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s cubic-bezier(.22,.61,.36,1);}
.reveal.in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .dock-nav a{padding:8px 11px;font-size:14px;}
}
@media (max-width:1023px){
  body{padding-top:96px;}
  .container{padding:0 24px;}
  .hero-grid{grid-template-columns:1fr;gap:28px;}
  .hero-visual{aspect-ratio:16/9;}
  .guide-layout{grid-template-columns:1fr;gap:32px;}
  .toc{position:static;}
  .toc-card ol{flex-direction:row;flex-wrap:wrap;gap:8px;}
  .toc-card a{border-left:0;border:1px solid var(--glass-border);border-radius:var(--r-pill);padding:7px 12px;font-size:13.5px;}
  .toc-card a.active{border-color:rgba(47,211,255,.4);}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:768px){
  body{padding-top:88px;padding-bottom:84px;}
  .dock-nav{display:none;}
  .dock-actions{margin-left:auto;}
  .dock-actions .btn-primary{display:none;}
  .menu-btn{display:inline-flex;}
  .btn{padding:11px 18px;}
  .key-grid{grid-template-columns:1fr;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:26px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;gap:8px;}
  .to-top{right:16px;bottom:96px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .page-hero h1{font-size:clamp(26px,7.4vw,34px);}
  .page-hero .lede{font-size:15.5px;}
  .flow-block p{font-size:15.5px;}
  .keycard{padding:20px;}
  .crumbs{font-size:12.5px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --bg-0:#05070D;
  --bg-1:#0A1220;
  --bg-2:#0F1B2E;
  --glass:rgba(255,255,255,.05);
  --glass-strong:rgba(255,255,255,.08);
  --line:rgba(140,200,255,.14);
  --line-strong:rgba(140,200,255,.28);
  --t-1:#E8F1FB;
  --t-2:#A8B8CC;
  --t-3:#6E8299;
  --brand:#2FD3FF;
  --brand-strong:#0FB6E8;
  --accent:#FF7A2F;
  --success:#34D399;
  --warn:#FBBF24;
  --error:#F87171;
  --r-sm:12px;
  --r-md:18px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(0,0,0,.4);
  --sh-2:0 8px 24px -8px rgba(0,0,0,.5);
  --sh-3:0 24px 60px -24px rgba(0,0,0,.65);
  --glow:0 0 0 1px rgba(47,211,255,.35),0 10px 34px -10px rgba(47,211,255,.55);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:220ms;
  --font-num:"Rajdhani","Barlow Semi Condensed","HarmonyOS Sans","PingFang SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:
    radial-gradient(1200px 600px at 12% -10%,rgba(47,211,255,.10),transparent 60%),
    radial-gradient(900px 520px at 92% 8%,rgba(255,122,47,.07),transparent 58%),
    linear-gradient(180deg,var(--bg-0) 0%,var(--bg-1) 46%,var(--bg-0) 100%);
  color:var(--t-1);
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  min-height:100vh;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease),opacity var(--dur) var(--ease);}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:650;line-height:1.25;letter-spacing:.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(47,211,255,.3);}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ============ 返回顶部 ============ */
.back-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:var(--r-pill);
  display:grid;place-items:center;background:var(--glass-strong);border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  color:var(--t-2);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
  z-index:70;
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.back-top:hover{color:var(--brand);border-color:var(--line-strong);}
.back-top svg{width:20px;height:20px;}

/* ============ Dock 导航 ============ */
.dock{
  position:fixed;top:20px;left:50%;transform:translateX(-50%);
  width:calc(100% - 48px);max-width:1200px;
  display:flex;align-items:center;gap:18px;
  padding:10px 14px 10px 18px;
  border-radius:var(--r-pill);
  background:rgba(10,18,32,.72);
  border:1px solid var(--line);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--sh-2);
  z-index:80;
  transition:opacity var(--dur) var(--ease),background var(--dur) var(--ease);
}
.dock.scrolled{background:rgba(8,14,26,.86);}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:26px;height:26px;border-radius:9px;flex:0 0 auto;
  background:conic-gradient(from 200deg,var(--brand),var(--brand-strong) 45%,#0a5f8a 78%,var(--brand));
  box-shadow:0 0 0 1px rgba(47,211,255,.4),0 6px 18px -6px rgba(47,211,255,.8);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:7px;border-radius:4px;background:rgba(5,7,13,.85);
}
.bn{font-weight:700;font-size:17px;letter-spacing:.02em;white-space:nowrap;}
.dock-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.dock-nav a{
  position:relative;display:inline-block;padding:9px 14px;border-radius:var(--r-pill);
  color:var(--t-2);font-size:15px;white-space:nowrap;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.dock-nav a:hover{background:rgba(255,255,255,.07);color:var(--t-1);}
.dock-nav a.active{
  color:#04121a;background:linear-gradient(135deg,var(--brand),var(--brand-strong));
  box-shadow:0 0 0 1px rgba(47,211,255,.35),0 8px 22px -12px rgba(47,211,255,.9);
  font-weight:600;
}
.dock-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);display:grid;place-items:center;
  color:var(--t-2);border:1px solid transparent;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.icon-btn svg{width:19px;height:19px;}
.icon-btn:hover{background:rgba(255,255,255,.08);color:var(--brand);border-color:var(--line);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform var(--dur) var(--ease),filter var(--dur) var(--ease),background var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),color var(--dur) var(--ease);
}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-primary{
  color:#04121a;background:linear-gradient(135deg,var(--brand) 0%,var(--brand-strong) 100%);
  box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{
  color:var(--t-1);background:var(--glass);border:1px solid var(--line-strong);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.btn-ghost:hover{background:rgba(255,255,255,.11);transform:translateY(-2px);}
.btn-ghost:active{transform:scale(.98);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px;padding:4px 0;
}
.btn-text span{transition:transform var(--dur) var(--ease);}
.btn-text:hover span{transform:translateX(4px);}

/* 搜索弹层 */
.search-pop{
  position:absolute;top:calc(100% + 12px);right:14px;width:340px;max-width:calc(100% - 28px);
  padding:18px;border-radius:var(--r-md);
  background:rgba(10,18,32,.95);border:1px solid var(--line);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:var(--sh-3);
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur);
}
.search-pop.open{opacity:1;visibility:visible;transform:translateY(0);}
.search-pop label{display:block;font-size:13px;color:var(--t-3);margin-bottom:8px;}
.field{
  width:100%;min-height:46px;padding:0 14px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--t-1);
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease);
}
.field::placeholder{color:var(--t-3);}
.field:hover{border-color:var(--line-strong);}
.field:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,211,255,.18);background:rgba(255,255,255,.06);}
.field-hint{margin-top:10px;font-size:12.5px;color:var(--t-3);line-height:1.7;}

/* ============ Hero 通栏 ============ */
.hero{
  position:relative;overflow:hidden;
  padding:170px 0 82px;
  border-bottom:1px solid var(--line);
}
.hero-media{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  background-color:var(--bg-2);
  filter:saturate(.9);
}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,13,.72) 0%,rgba(5,7,13,.82) 45%,rgba(5,7,13,.96) 100%);
}
.hero-media::before{
  content:"";position:absolute;inset:auto -10% -40% -10%;height:360px;
  background:radial-gradient(closest-side,rgba(47,211,255,.22),transparent 72%);
}
.hero .container{position:relative;z-index:2;max-width:960px;text-align:center;}
.crumbs{
  display:inline-flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:center;
  margin-bottom:22px;padding:8px 16px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);
  font-size:13px;color:var(--t-2);
}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:var(--t-3);}
.crumbs .cur{color:var(--t-3);}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);
  font-weight:700;letter-spacing:.015em;margin-bottom:18px;
}
.hero .lead{
  max-width:640px;margin:0 auto;color:var(--t-2);font-size:clamp(15px,1.4vw,17px);
}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  margin:44px auto 0;max-width:780px;
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  background:var(--line);
}
.stat{
  background:rgba(9,16,29,.72);padding:22px 16px;text-align:center;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.stat b{
  display:block;font-family:var(--font-num);
  font-size:clamp(28px,3.4vw,40px);font-weight:700;line-height:1.1;
  color:var(--brand);letter-spacing:.02em;
}
.stat span{display:block;margin-top:6px;font-size:13px;color:var(--t-3);}

/* ============ 通用板块 ============ */
.section{padding:clamp(64px,8vw,110px) 0;}
.section.tight{padding:clamp(48px,6vw,78px) 0;}
.sec-head{max-width:720px;margin:0 auto clamp(32px,4vw,52px);text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:16px;
  background:rgba(47,211,255,.09);border:1px solid rgba(47,211,255,.25);
  color:var(--brand);font-size:12.5px;letter-spacing:.06em;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px var(--brand);}
.sec-head h2{font-size:clamp(24px,2.8vw,36px);margin-bottom:14px;}
.sec-head p{color:var(--t-2);font-size:15.5px;}

/* ============ 单栏长文 ============ */
.readwrap{max-width:820px;margin:0 auto;}
.readwrap h2{
  position:relative;padding-left:18px;margin:52px 0 18px;
  font-size:clamp(21px,2.2vw,28px);
}
.readwrap h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--brand),rgba(47,211,255,0));
}
.readwrap h2:first-child{margin-top:0;}
.readwrap h3{font-size:19px;margin:32px 0 12px;color:var(--t-1);}
.readwrap p{color:var(--t-2);font-size:17px;line-height:1.92;margin-bottom:1.2em;}
.readwrap p strong{color:var(--t-1);font-weight:600;}
.readwrap a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.readwrap a:hover{color:#7fe6ff;}
.divider{height:1px;margin:44px 0;background:linear-gradient(90deg,transparent,var(--line-strong) 22%,var(--line-strong) 78%,transparent);}
.quote{
  margin:30px 0;padding:20px 22px;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--line);border-left:3px solid var(--brand);
  color:var(--t-2);font-size:16px;
}
.plain-list{margin:0 0 1.4em;padding:0;list-style:none;display:grid;gap:12px;}
.plain-list li{position:relative;padding-left:26px;color:var(--t-2);font-size:16.5px;line-height:1.85;}
.plain-list li::before{
  content:"";position:absolute;left:6px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(47,211,255,.7);
}
.figure{margin:36px 0;}
.figure .frame{
  border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);
  background:var(--bg-2);box-shadow:var(--sh-2);
}
.figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.figure figcaption{margin-top:10px;font-size:13px;color:var(--t-3);text-align:center;}

/* ============ 2×2 不等高矩阵 ============ */
.matrix{
  display:grid;grid-template-columns:1fr 1fr;gap:22px;
  margin:56px 0 8px;
}
.mcard{
  position:relative;padding:28px 26px 26px;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-2);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
  overflow:hidden;
}
.mcard::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,211,255,.7),transparent);
}
.mcard:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--sh-3);}
.mcard.tall{padding-bottom:40px;}
.mcard.tall::after{
  content:"";position:absolute;right:-50px;bottom:-60px;width:170px;height:170px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(47,211,255,.20),transparent 70%);
}
.mcard .idx{
  font-family:var(--font-num);font-size:14px;font-weight:700;letter-spacing:.14em;
  color:var(--accent);display:block;margin-bottom:14px;
}
.mcard h3{font-size:20px;margin-bottom:10px;}
.mcard p{color:var(--t-2);font-size:15.5px;line-height:1.85;}
.mcard .tagline{
  display:inline-block;margin-top:16px;padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;color:var(--brand);background:rgba(47,211,255,.09);
  border:1px solid rgba(47,211,255,.22);position:relative;z-index:2;
}
.mcard:nth-child(1){transform:translateY(0);}
.matrix .mcard:nth-child(2){margin-top:26px;}
.matrix .mcard:nth-child(4){margin-top:26px;}

/* ============ FAQ ============ */
.faq{max-width:820px;margin:0 auto;display:grid;gap:14px;}
.faq-item{
  border-radius:var(--r-md);background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  overflow:hidden;transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.faq-item:hover{border-color:var(--line-strong);}
.faq-item.open{border-color:rgba(47,211,255,.4);box-shadow:var(--sh-2);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;text-align:left;font-size:16.5px;font-weight:600;color:var(--t-1);
}
.faq-q .pm{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;border:1px solid var(--line-strong);color:var(--brand);
  font-size:16px;line-height:1;transition:transform var(--dur) var(--ease),background var(--dur) var(--ease);
}
.faq-item.open .faq-q .pm{transform:rotate(45deg);background:rgba(47,211,255,.14);}
.faq-a{
  max-height:0;opacity:0;overflow:hidden;
  transition:max-height 320ms var(--ease),opacity 260ms var(--ease);
}
.faq-item.open .faq-a{opacity:1;}
.faq-a p{
  padding:0 24px 22px;margin:0;color:var(--t-2);font-size:15.5px;
  border-top:1px solid var(--line);padding-top:18px;
}

/* ============ CTA 条 ============ */
.cta-band{
  display:grid;grid-template-columns:1.4fr .8fr;gap:26px;align-items:center;
  padding:36px 40px;border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(47,211,255,.10),rgba(255,255,255,.03) 55%,rgba(255,122,47,.08));
  border:1px solid var(--line-strong);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-2);
}
.cta-band h2{font-size:clamp(21px,2.3vw,28px);margin-bottom:10px;}
.cta-band p{color:var(--t-2);font-size:15.5px;}
.cta-band .actions{display:flex;gap:12px;justify-content:flex-end;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:clamp(56px,7vw,96px);border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,18,32,.6),rgba(5,7,13,.95));
  padding:clamp(48px,5vw,72px) 0 28px;
}
.foot-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;
}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand p{color:var(--t-2);font-size:14.5px;max-width:340px;line-height:1.85;}
.foot-col h4{font-size:15px;margin-bottom:16px;color:var(--t-1);}
.foot-col ul{display:grid;gap:10px;}
.foot-col a,.foot-col .txt{color:var(--t-2);font-size:14.5px;}
.foot-col a:hover{color:var(--brand);}
.foot-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  color:var(--t-3);font-size:13px;
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 560ms var(--ease),transform 560ms var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  *{transition-duration:1ms !important;}
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .container{padding:0 24px;}
  .dock{width:calc(100% - 32px);gap:12px;}
  .dock-nav a{padding:8px 11px;font-size:14px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .cta-band{grid-template-columns:1fr;padding:32px;}
  .cta-band .actions{justify-content:flex-start;}
}
@media (max-width:820px){
  .hero{padding:140px 0 64px;}
  .hero-stats{grid-template-columns:1fr;max-width:420px;}
  .matrix{grid-template-columns:1fr;}
  .matrix .mcard:nth-child(2),
  .matrix .mcard:nth-child(4){margin-top:0;}
}
@media (max-width:767px){
  body{padding-bottom:104px;}
  .dock{
    position:fixed;top:auto;bottom:14px;left:50%;transform:translateX(-50%);
    width:calc(100% - 24px);padding:8px 10px;border-radius:var(--r-lg);
    justify-content:space-between;gap:8px;
  }
  .dock-nav{
    position:fixed;left:0;right:0;bottom:0;margin:0;
    display:flex;gap:0;overflow-x:auto;-webkit-overflow-scrolling:touch;
    background:transparent;order:2;
  }
  .dock-nav a{
    flex:0 0 auto;font-size:13.5px;padding:8px 10px;
  }
  .dock-nav{flex:1;justify-content:flex-start;}
  .dock-actions .btn-primary{display:none;}
  .bn{font-size:15px;}
  .back-top{bottom:96px;right:16px;}
  .search-pop{right:0;left:0;width:auto;}
  .readwrap p{font-size:16px;}
  .faq-q{padding:18px 18px;font-size:15.5px;}
  .faq-a p{padding-left:18px;padding-right:18px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .hero{padding:124px 0 54px;}
  .hero-stats{border-radius:var(--r-md);}
  .stat{padding:18px 12px;}
  .foot-grid{grid-template-columns:1fr;gap:26px;}
  .cta-band{padding:24px 20px;}
  .mcard{padding:22px 20px;}
  .btn{min-height:48px;}
  .btn-sm{min-height:44px;}
}

/* roulang page: category3 */
:root{
  --bg-0:#05070D;--bg-1:#0A1220;--bg-2:#0F1B2E;
  --glass:rgba(255,255,255,.05);--glass-2:rgba(255,255,255,.08);
  --glass-bd:rgba(140,200,255,.14);--glass-bd-2:rgba(140,200,255,.3);
  --text:#E8F1FB;--text-2:#A8B8CC;--text-3:#6E8299;
  --brand:#2FD3FF;--brand-strong:#0FB6E8;--accent:#FF7A2F;
  --success:#34D399;--warn:#FBBF24;--error:#F87171;
  --r-card:18px;--r-sm:12px;--r-img:16px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(0,0,0,.4);
  --sh-2:0 8px 24px -8px rgba(0,0,0,.5);
  --sh-3:0 24px 60px -24px rgba(0,0,0,.65);
  --glow:0 0 0 1px rgba(47,211,255,.35),0 10px 34px -10px rgba(47,211,255,.55);
  --ease:cubic-bezier(.22,.61,.36,1);--t:220ms;
  --sec:clamp(56px,7vw,104px);
  --mono:"Rajdhani","Barlow Semi Condensed",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.8;color:var(--text);overflow-x:hidden;
  background:
    radial-gradient(1100px 560px at 82% -8%,rgba(47,211,255,.10),transparent 62%),
    radial-gradient(900px 480px at -6% 8%,rgba(255,122,47,.06),transparent 58%),
    var(--bg-0);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
::selection{background:rgba(47,211,255,.3);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-1)}
::-webkit-scrollbar-thumb{background:rgba(140,200,255,.22);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:rgba(47,211,255,.42)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--sec) 0}
.section-tight{padding:clamp(20px,3vw,40px) 0 var(--sec)}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- 浮动 Dock 导航 ---------- */
.dock{
  position:fixed;top:18px;left:50%;transform:translateX(-50%);z-index:60;
  display:flex;align-items:center;gap:20px;
  width:min(1200px,calc(100% - 32px));padding:10px 14px 10px 18px;
  border-radius:var(--r-pill);background:rgba(10,18,32,.74);
  border:1px solid var(--glass-bd);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-2);
  transition:background var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.dock::after{
  content:"";position:absolute;left:14%;right:14%;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.4),transparent);
}
.dock.compact{background:rgba(10,18,32,.6);box-shadow:var(--sh-1)}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:22px;height:22px;border-radius:7px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand),var(--brand-strong));
  box-shadow:0 0 0 1px rgba(47,211,255,.4),0 6px 18px -6px rgba(47,211,255,.9);
  transform:rotate(45deg);
}
.bn{font-size:16px;font-weight:700;letter-spacing:.02em;color:#fff;white-space:nowrap}
.dock-nav{margin-left:auto;display:flex;align-items:center;gap:4px;min-width:0}
.dock-nav a{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:var(--r-pill);
  font-size:14.5px;color:var(--text-2);white-space:nowrap;
  transition:background var(--t) var(--ease),color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.dock-nav a:hover{background:rgba(255,255,255,.07);color:#fff}
.dock-nav a.active{
  color:var(--brand);background:rgba(47,211,255,.1);
  box-shadow:inset 0 0 0 1px rgba(47,211,255,.32),0 8px 20px -14px rgba(47,211,255,.9);
}
.dock-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;position:relative}
.icon-btn{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  color:var(--text-2);background:rgba(255,255,255,.04);border:1px solid var(--glass-bd);
  transition:color var(--t) var(--ease),border-color var(--t) var(--ease),background var(--t) var(--ease);
}
.icon-btn svg{width:18px;height:18px}
.icon-btn:hover{color:var(--brand);border-color:var(--glass-bd-2);background:rgba(47,211,255,.08)}
.search-pop{
  position:absolute;top:calc(100% + 14px);right:0;width:340px;padding:18px;
  border-radius:var(--r-card);background:rgba(10,18,32,.94);border:1px solid var(--glass-bd);
  backdrop-filter:blur(16px);box-shadow:var(--sh-3);
  display:none;
}
.search-pop.open{display:block}
.search-pop label{display:block;font-size:13px;color:var(--text-3);letter-spacing:.06em;margin-bottom:10px}
.field{
  width:100%;height:44px;padding:0 14px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.05);border:1px solid var(--glass-bd);
  color:var(--text);font-size:14.5px;
  transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease),background var(--t) var(--ease);
}
.field::placeholder{color:var(--text-3)}
.field:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(47,211,255,.14);background:rgba(255,255,255,.07)}
.field.is-error{border-color:var(--error);box-shadow:0 0 0 4px rgba(248,113,113,.14)}
.field-hint{margin-top:10px;font-size:12.5px;color:var(--text-3)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;
  border:1px solid transparent;white-space:nowrap;
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),background var(--t) var(--ease),border-color var(--t) var(--ease),filter var(--t) var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,#19C6F2,#0A76AE);color:#fff;
  box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(47,211,255,.45),0 16px 40px -14px rgba(47,211,255,.85)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{
  background:rgba(255,255,255,.05);border-color:var(--glass-bd);color:var(--text);
}
.btn-ghost:hover{background:rgba(255,255,255,.09);border-color:var(--glass-bd-2);transform:translateY(-2px)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.btn[disabled]{opacity:.4;box-shadow:none;cursor:not-allowed}

/* ---------- 页面头部 ---------- */
.page-head{position:relative;padding:clamp(126px,15vw,176px) 0 clamp(40px,6vw,72px);overflow:hidden;border-bottom:1px solid rgba(140,200,255,.1)}
.head-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(5,7,13,.72) 0%,rgba(5,7,13,.88) 55%,var(--bg-0) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.head-bg::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(140,200,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(140,200,255,.055) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(640px 320px at 78% 18%,#000,transparent 72%);
  mask-image:radial-gradient(640px 320px at 78% 18%,#000,transparent 72%);
}
.head-inner{position:relative;z-index:1}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13.5px;color:var(--text-3);margin-bottom:22px}
.crumb a{color:var(--text-2);transition:color var(--t) var(--ease)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{opacity:.66}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;letter-spacing:.1em;color:var(--brand);
  background:rgba(47,211,255,.08);border:1px solid rgba(47,211,255,.22);
}
h1{font-size:clamp(30px,4.4vw,52px);color:#fff;margin:20px 0 14px;max-width:20ch}
.lead{font-size:clamp(16px,1.4vw,18px);color:var(--text-2);max-width:62ch}
.head-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  font-size:13px;color:var(--text-2);padding:5px 13px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.04);border:1px solid var(--glass-bd);
}

/* ---------- 卡片 ---------- */
.card{
  position:relative;background:var(--glass);border:1px solid var(--glass-bd);
  border-radius:var(--r-card);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-1);
  transition:transform var(--t) var(--ease),border-color var(--t) var(--ease),box-shadow var(--t) var(--ease),background var(--t) var(--ease);
}
.card::before{
  content:"";position:absolute;left:16px;right:16px;top:0;height:1px;border-radius:inherit;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.34),transparent);
}
.card:hover{transform:translateY(-4px);border-color:var(--glass-bd-2);box-shadow:var(--sh-2);background:var(--glass-2)}

/* ---------- 功能总览 ---------- */
.overview{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;padding:clamp(26px,3.4vw,40px);align-items:center}
.ov-text h2{font-size:clamp(22px,2.4vw,30px);color:#fff;margin-bottom:14px}
.ov-text p{font-size:16px;color:var(--text-2);margin-bottom:12px}
.ov-text p:last-child{margin-bottom:0}
.ov-stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.stat{padding:18px;border-radius:var(--r-sm);background:rgba(255,255,255,.04);border:1px solid var(--glass-bd)}
.stat b{display:block;font-weight:600;font-size:clamp(24px,2.8vw,34px);color:var(--brand);line-height:1.12}
.stat span{display:block;margin-top:4px;font-size:13.5px;color:var(--text-3)}

/* ---------- 两栏矩阵 ---------- */
.layout{display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:start}
.side{position:sticky;top:104px;display:grid;gap:20px}
.toc{padding:22px}
.toc-title{display:block;font-size:12.5px;letter-spacing:.14em;color:var(--text-3);margin-bottom:14px}
.toc ul{display:grid;gap:4px}
.toc a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--r-sm);
  font-size:15px;color:var(--text-2);
  transition:background var(--t) var(--ease),color var(--t) var(--ease);
}
.toc a::before{
  content:"";width:6px;height:6px;border-radius:50%;flex:0 0 auto;
  background:rgba(140,200,255,.36);transition:background var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.toc a:hover{background:rgba(47,211,255,.09);color:var(--brand)}
.toc a:hover::before{background:var(--brand);box-shadow:0 0 10px rgba(47,211,255,.9)}
.side-figure{overflow:hidden;padding:0}
.side-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.side-figure figcaption{padding:14px 18px;font-size:13.5px;color:var(--text-3);border-top:1px solid var(--glass-bd)}

.main-col{display:grid;gap:clamp(26px,3.4vw,40px)}
.block h2{
  display:flex;align-items:center;gap:12px;margin-bottom:18px;
  font-size:clamp(21px,2.3vw,28px);color:#fff;
}
.block h2::before{
  content:"";width:4px;height:22px;border-radius:2px;flex:0 0 auto;
  background:linear-gradient(180deg,var(--brand),rgba(47,211,255,0));
}
.qa-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.qa{padding:22px;display:flex;flex-direction:column;gap:10px}
.qa-idx{font-size:13.5px;letter-spacing:.1em;color:var(--accent)}
.qa h3{font-size:17.5px;color:#fff}
.qa p{font-size:15px;color:var(--text-2)}
.rule{height:1px;border:0;margin:0;background:linear-gradient(90deg,rgba(140,200,255,.24),rgba(140,200,255,0))}

/* ---------- 功能对照表 ---------- */
.table-wrap{padding:6px;overflow:hidden}
.table-scroll{overflow-x:auto;border-radius:var(--r-sm)}
table{width:100%;min-width:720px}
thead th{
  text-align:left;padding:16px 18px;font-size:13.5px;font-weight:600;letter-spacing:.06em;
  color:var(--brand);border-bottom:1px solid rgba(140,200,255,.2);white-space:nowrap;
}
tbody td{
  padding:15px 18px;font-size:15px;color:var(--text-2);
  border-bottom:1px solid rgba(140,200,255,.08);vertical-align:top;
}
tbody tr:nth-child(even){background:rgba(255,255,255,.022)}
tbody td:first-child{color:#fff;font-weight:600}
tbody tr:last-child td{border-bottom:0}

/* ---------- 操作路径 ---------- */
.track{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;position:relative}
.track::before{
  content:"";position:absolute;top:22px;left:24px;right:24px;height:1px;
  background:linear-gradient(90deg,rgba(47,211,255,.5),rgba(47,211,255,.06));
}
.track-item{position:relative;padding-top:60px}
.dot{
  position:absolute;top:0;left:0;width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;font-size:15px;color:var(--brand);
  background:rgba(10,18,32,.92);border:1px solid rgba(47,211,255,.4);
  box-shadow:0 0 0 6px rgba(5,7,13,.92),0 10px 24px -14px rgba(47,211,255,.9);
}
.track-item h3{font-size:17px;color:#fff;margin-bottom:8px}
.track-item p{font-size:14.5px;color:var(--text-2)}

/* ---------- 精简 CTA ---------- */
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:clamp(22px,3vw,34px);border-radius:var(--r-card);
  background:linear-gradient(120deg,rgba(47,211,255,.1),rgba(255,255,255,.03) 58%);
}
.cta-bar h2{font-size:clamp(20px,2.2vw,26px);color:#fff;margin-bottom:8px}
.cta-bar p{font-size:15px;color:var(--text-2)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--sec);padding:clamp(44px,6vw,72px) 0 26px;
  border-top:1px solid rgba(140,200,255,.12);
  background:linear-gradient(180deg,rgba(10,18,32,.55),rgba(5,7,13,.96));
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.foot-brand p{margin-top:14px;font-size:14.5px;color:var(--text-3);max-width:36ch}
.foot-col h4{font-size:15px;color:#fff;margin-bottom:14px}
.foot-col ul{display:grid;gap:10px}
.foot-col a,.foot-col .txt{font-size:14.5px;color:var(--text-2)}
.foot-col a{transition:color var(--t) var(--ease)}
.foot-col a:hover{color:var(--brand)}
.foot-bottom{
  margin-top:clamp(28px,4vw,44px);padding-top:20px;
  border-top:1px solid rgba(140,200,255,.1);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13.5px;color:var(--text-3);
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;z-index:50;width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;color:var(--brand);
  background:rgba(10,18,32,.82);border:1px solid var(--glass-bd);
  backdrop-filter:blur(12px);box-shadow:var(--sh-2);
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity var(--t) var(--ease),transform var(--t) var(--ease),border-color var(--t) var(--ease);
}
.to-top svg{width:20px;height:20px}
.to-top.show{opacity:1;pointer-events:auto;transform:none}
.to-top:hover{border-color:var(--glass-bd-2)}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 620ms var(--ease),transform 620ms var(--ease)}
.reveal.in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:1ms!important;animation:none!important}
  .reveal{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .layout{grid-template-columns:1fr}
  .side{position:static}
  .overview{grid-template-columns:1fr}
  .track{grid-template-columns:repeat(2,minmax(0,1fr))}
  .track::before{display:none}
  .dock{gap:14px}
  .dock-nav a{padding:0 11px;font-size:14px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .container{padding:0 24px}
  .dock{
    top:auto;bottom:12px;left:12px;right:12px;width:auto;transform:none;
    border-radius:22px;padding:8px 10px;gap:10px;
  }
  .dock-nav{
    margin-left:0;flex:1 1 auto;overflow-x:auto;padding-bottom:2px;
    -ms-overflow-style:none;scrollbar-width:none;
  }
  .dock-nav::-webkit-scrollbar{display:none}
  .dock-nav a{height:36px;padding:0 12px;font-size:13.5px}
  .bn{display:none}
  .dock-actions .btn{display:none}
  .search-pop{
    left:auto;right:0;top:auto;bottom:calc(100% + 12px);
    width:min(360px,calc(100vw - 48px));
  }
  body{padding-bottom:96px}
  .page-head{padding-top:104px}
  .qa-grid{grid-template-columns:1fr}
  .cta-bar{flex-direction:column;align-items:flex-start}
  .cta-bar .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .to-top{right:14px;bottom:92px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .ov-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .track{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column}
}