/* roulang page: index */
:root{
  --bg-0:#05070D;
  --bg-1:#0A1020;
  --bg-2:#101A31;
  --brand:#3B6DF6;
  --accent:#33E1C4;
  --warm:#FF7B93;
  --text:#E8EEFF;
  --text-2:#A9B6D3;
  --text-3:#6E7D9C;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --line-accent:rgba(51,225,196,.35);
  --r-s:12px;
  --r-m:16px;
  --r-l:20px;
  --r-p:999px;
  --sh-1:0 4px 14px rgba(0,0,0,.28);
  --sh-2:0 18px 40px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(51,225,196,.22),0 14px 34px rgba(51,225,196,.16);
  --g-1:rgba(255,255,255,.06);
  --g-2:rgba(255,255,255,.02);
  --c-pc:32px;
  --c-mb:20px;
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;--sp-10:120px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter",ui-monospace,"SFMono-Regular",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg-0);color:var(--text);
  font-family:var(--font-sans);font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(900px 620px at 6% -8%,rgba(59,109,246,.16),transparent 62%),
    radial-gradient(820px 620px at 102% 104%,rgba(51,225,196,.10),transparent 64%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.04;
  background-image:
    linear-gradient(rgba(255,255,255,.7) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.7) 1px,transparent 1px);
  background-size:64px 64px;
}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:var(--accent);text-decoration:none;border-bottom:1px solid rgba(51,225,196,.35);transition:color .18s ease,border-color .18s ease}
a:hover{color:#6FF3DC;border-bottom-color:#6FF3DC}
a.btn,a.card-link,a.logo,a.nav-link,a.chip,a.tab,a.footer-link{border-bottom:0}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;color:inherit;cursor:pointer;border:0;background:none}
input,textarea,select{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
::selection{background:rgba(51,225,196,.3);color:#fff}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 var(--c-pc);position:relative;z-index:1}
.main-wrap{position:relative;z-index:1;padding-top:96px}
.section{padding:var(--sp-10) 0;position:relative}
.section--tight{padding:var(--sp-9) 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.16em;color:var(--accent);
  padding:6px 14px;border:1px solid var(--line-accent);border-radius:var(--r-p);
  background:rgba(51,225,196,.06);margin-bottom:var(--sp-5);font-weight:600;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
.sec-head{max-width:760px;margin-bottom:var(--sp-8)}
.sec-head h2{font-size:clamp(24px,3vw,38px);font-weight:700;line-height:1.25;margin-bottom:var(--sp-4)}
.sec-head p{color:var(--text-2);font-size:16.5px}
.sec-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--sp-6);max-width:none;flex-wrap:wrap}
.sec-head--row .sec-head-text{max-width:720px}
.muted{color:var(--text-3)}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* 按钮体系 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-s);font-size:15px;font-weight:600;
  transition:transform .18s ease-out,box-shadow .18s ease-out,filter .18s ease-out,background .18s ease-out;
  white-space:nowrap;border:1px solid transparent;
}
.btn:hover{transform:translateY(-1px);filter:brightness(1.06)}
.btn:active{transform:translateY(0);box-shadow:inset 0 2px 8px rgba(0,0,0,.35)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none;filter:none}
.btn-primary{
  background:linear-gradient(112deg,var(--brand) 0%,#2AC9C6 55%,var(--accent) 100%);
  color:#04121A;font-weight:700;box-shadow:0 10px 26px rgba(51,225,196,.22);
}
.btn-primary:hover{box-shadow:0 14px 34px rgba(51,225,196,.34)}
.btn-secondary{
  background:linear-gradient(160deg,var(--g-1),var(--g-2));
  border-color:var(--line-2);color:var(--text);backdrop-filter:blur(14px) saturate(140%);
}
.btn-secondary:hover{border-color:var(--line-accent);box-shadow:var(--sh-glow)}
.btn-ghost{border-color:var(--line-2);color:var(--text-2);background:transparent}
.btn-ghost:hover{color:var(--text);border-color:var(--line-accent)}
.btn-text{color:var(--accent);padding:13px 4px;border-bottom:1px solid rgba(51,225,196,.4);border-radius:0}
.btn-text:hover{border-bottom-color:#6FF3DC}
.btn-text .arw{transition:transform .18s ease}
.btn-text:hover .arw{transform:translateX(4px)}
.btn-row{display:flex;flex-wrap:wrap;gap:var(--sp-3);align-items:center}
.btn-sm{padding:9px 18px;font-size:14px}

/* 徽章 / 标签 */
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;letter-spacing:.04em;
  padding:4px 11px;border-radius:var(--r-p);color:var(--accent);
  background:rgba(51,225,196,.1);border:1px solid var(--line-accent);
}
.badge-warm{color:var(--warm);background:rgba(255,123,147,.1);border-color:rgba(255,123,147,.32)}
.tag{
  display:inline-flex;align-items:center;font-size:12px;color:var(--text-2);
  padding:4px 10px;border-radius:var(--r-p);border:1px solid var(--line);background:rgba(255,255,255,.03);
}

/* 玻璃卡片 */
.glass{
  background:linear-gradient(160deg,var(--g-1),var(--g-2));
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  box-shadow:var(--sh-2),inset 0 1px 0 rgba(255,255,255,.06);
  border-radius:var(--r-l);
}

/* Header */
.site-header{position:fixed;inset:0 0 auto 0;z-index:80;padding:14px var(--c-pc);transition:padding .3s ease}
.header-inner{
  max-width:1240px;margin:0 auto;height:72px;display:flex;align-items:center;gap:var(--sp-5);
  padding:0 20px 0 22px;border-radius:var(--r-p);
  background:rgba(10,16,32,.34);border:1px solid rgba(255,255,255,.06);
  backdrop-filter:blur(12px) saturate(140%);transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{padding-top:8px}
.site-header.is-scrolled .header-inner{
  background:rgba(8,13,26,.92);border-color:var(--line-2);
  box-shadow:0 14px 34px rgba(0,0,0,.5);
}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:800;font-size:17px;letter-spacing:.01em;flex-shrink:0}
.logo-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;color:var(--accent);
  background:linear-gradient(150deg,rgba(59,109,246,.55),rgba(51,225,196,.35));
  border:1px solid rgba(255,255,255,.14);box-shadow:inset 0 1px 0 rgba(255,255,255,.18);
}
.logo:hover{color:#fff}
.nav-main{display:flex;align-items:center;gap:2px;margin-left:var(--sp-4);flex:1;min-width:0}
.nav-link{
  position:relative;padding:9px 14px;border-radius:var(--r-p);font-size:14.5px;color:var(--text-2);
  white-space:nowrap;transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:0;height:2px;border-radius:2px;background:var(--accent);transition:width .22s ease;
}
.nav-link.is-active{color:var(--text);background:rgba(51,225,196,.1)}
.nav-link.is-active::after{width:22px}
.header-actions{display:flex;align-items:center;gap:var(--sp-3);flex-shrink:0}
.dropdown{position:relative}
.dropdown-toggle{
  display:inline-flex;align-items:center;gap:7px;padding:9px 16px;border-radius:var(--r-p);
  font-size:14px;color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:color .18s ease,border-color .18s ease;
}
.dropdown-toggle:hover{color:var(--text);border-color:var(--line-accent)}
.dropdown-toggle .caret{width:7px;height:7px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg);margin-top:-3px;transition:transform .2s ease}
.dropdown:hover .caret,.dropdown:focus-within .caret{transform:rotate(-135deg);margin-top:3px}
.dropdown-menu{
  position:absolute;top:calc(100% + 12px);right:0;min-width:214px;padding:10px;
  border-radius:var(--r-m);background:rgba(14,22,42,.97);border:1px solid var(--line);
  box-shadow:var(--sh-2);opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.dropdown:hover .dropdown-menu,.dropdown:focus-within .dropdown-menu{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown-menu a{display:block;padding:10px 14px;border-radius:10px;color:var(--text-2);font-size:14px;border:0;transition:background .16s ease,color .16s ease}
.dropdown-menu a:hover{background:rgba(51,225,196,.1);color:var(--text)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,5,12,.7);backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s;z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(380px,86vw);z-index:95;
  background:linear-gradient(180deg,#0B1224,#070B15);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .3s ease;overflow-y:auto;padding:22px 22px 40px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--sp-6)}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.04);display:grid;place-items:center;color:var(--text-2);font-size:20px}
.drawer-close:hover{color:var(--text);border-color:var(--line-accent)}
.drawer-title{font-size:12px;letter-spacing:.16em;color:var(--accent);margin:var(--sp-6) 0 var(--sp-3)}
.drawer-list a{
  display:block;padding:13px 16px;border-radius:12px;color:var(--text-2);font-size:15.5px;border:0;
  margin-bottom:6px;background:rgba(255,255,255,.03);border-left:2px solid transparent;transition:.18s;
}
.drawer-list a:hover,.drawer-list a.is-active{background:rgba(51,225,196,.1);color:var(--text);border-left-color:var(--accent)}
.drawer-cta{margin-top:var(--sp-7);display:grid;gap:var(--sp-3)}
.drawer-cta .btn{width:100%}

/* Hero */
.hero{
  position:relative;min-height:640px;display:flex;align-items:center;
  padding:var(--sp-9) 0 var(--sp-8);
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(5,7,13,.62) 0%,rgba(5,7,13,.78) 55%,rgba(5,7,13,.97) 100%),
    linear-gradient(100deg,rgba(5,7,13,.9) 0%,rgba(5,7,13,.35) 60%,rgba(5,7,13,.7) 100%);
}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:var(--sp-9);align-items:center;position:relative;z-index:2}
.hero h1{
  font-size:clamp(30px,4.6vw,56px);font-weight:800;line-height:1.15;letter-spacing:-.02em;margin-bottom:var(--sp-5);
}
.hero h1 em{font-style:normal;background:linear-gradient(100deg,var(--accent),#7FB2FF);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:17.5px;color:var(--text-2);max-width:560px;margin-bottom:var(--sp-7)}
.hero-trust{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:var(--sp-6);
  font-size:13.5px;color:var(--text-3);
}
.hero-trust .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);opacity:.7}
.hero-trust b{color:var(--text-2);font-family:var(--font-num);font-variant-numeric:tabular-nums;font-weight:600}
.hero-panel{padding:var(--sp-6);animation:floaty 8s ease-in-out infinite}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
@media (prefers-reduced-motion:reduce){.hero-panel{animation:none}}
.panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--sp-5)}
.panel-title{font-size:14px;color:var(--text-2);font-weight:600}
.panel-dot{display:flex;gap:6px}
.panel-dot i{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.18)}
.panel-dot i:first-child{background:var(--accent);box-shadow:0 0 10px var(--accent)}
.stat-list{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-4);margin-bottom:var(--sp-5)}
.stat-item{padding:16px;border-radius:var(--r-m);background:rgba(255,255,255,.04);border:1px solid var(--line)}
.stat-item .k{font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--accent);line-height:1.2;text-shadow:0 0 22px rgba(51,225,196,.45)}
.stat-item .l{font-size:12.5px;color:var(--text-3);letter-spacing:.04em;margin-top:4px}
.progress-wrap{margin-bottom:var(--sp-5)}
.progress-label{display:flex;justify-content:space-between;font-size:12.5px;color:var(--text-3);margin-bottom:8px}
.progress-bar{height:6px;border-radius:var(--r-p);background:rgba(255,255,255,.07);overflow:hidden}
.progress-bar i{display:block;height:100%;width:78%;border-radius:var(--r-p);background:linear-gradient(90deg,var(--brand),var(--accent));box-shadow:0 0 16px rgba(51,225,196,.5)}
.panel-note{display:flex;flex-wrap:wrap;gap:8px}

/* 锚点快捷条 */
.quickbar-wrap{position:relative;z-index:30;margin-top:calc(var(--sp-8) * -1);padding-bottom:var(--sp-6)}
.quickbar{
  position:sticky;top:96px;z-index:40;
  display:flex;gap:8px;overflow-x:auto;padding:10px;border-radius:var(--r-p);
}
.quickbar::-webkit-scrollbar{height:0}
.quickbar .chip{
  padding:9px 18px;border-radius:var(--r-p);font-size:14px;color:var(--text-2);white-space:nowrap;
  border:1px solid transparent;transition:.18s ease;background:rgba(255,255,255,.03);
}
.quickbar .chip:hover{color:var(--text);background:rgba(255,255,255,.07)}
.quickbar .chip.is-active{color:#04121A;background:linear-gradient(112deg,var(--brand),var(--accent));font-weight:600;border-color:transparent}

/* Bento 卖点 */
.bento{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:minmax(180px,auto);gap:var(--sp-5)}
.bento-card{
  padding:var(--sp-6);border-radius:var(--r-l);position:relative;overflow:hidden;
  background:linear-gradient(160deg,var(--g-1),var(--g-2));
  border:1px solid var(--line);box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  display:flex;flex-direction:column;
}
.bento-card:hover{border-color:rgba(51,225,196,.3);transform:translateY(-2px);box-shadow:var(--sh-2),var(--sh-glow)}
.bento-card .idx{font-family:var(--font-num);font-size:13px;color:var(--accent);letter-spacing:.1em;margin-bottom:auto}
.bento-card h3{font-size:19px;font-weight:600;margin:var(--sp-5) 0 10px;color:var(--text)}
.bento-card p{font-size:15px;color:var(--text-2);line-height:1.75}
.bento-card .corner{
  position:absolute;right:18px;top:18px;font-size:12px;color:var(--text-3);letter-spacing:.08em;
}
.bento-wide{grid-column:span 2}
.bento-tall{grid-row:span 2}
.bento-media{
  margin-top:var(--sp-5);border-radius:var(--r-m);overflow:hidden;border:1px solid var(--line);
  box-shadow:0 10px 26px rgba(0,0,0,.4);
}
.bento-media img{width:100%;height:186px;object-fit:cover;transition:transform .35s ease}
.bento-card:hover .bento-media img{transform:scale(1.03)}

/* 演示区 */
.demo-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:var(--sp-9);align-items:center}
.steps{position:relative;padding-left:34px}
.steps::before{content:"";position:absolute;left:9px;top:10px;bottom:12px;width:1px;background:linear-gradient(180deg,var(--accent),rgba(51,225,196,.05))}
.step{position:relative;padding-bottom:var(--sp-6)}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:-34px;top:6px;width:19px;height:19px;border-radius:50%;
  background:var(--bg-1);border:2px solid var(--accent);box-shadow:0 0 14px rgba(51,225,196,.6);
}
.step .s-index{font-family:var(--font-num);font-size:12.5px;color:var(--accent);letter-spacing:.12em}
.step h3{font-size:18px;font-weight:600;margin:6px 0 8px}
.step p{font-size:15px;color:var(--text-2)}
.device{
  border-radius:var(--r-m);border:1px solid var(--line-2);overflow:hidden;padding:10px;
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.01));
  box-shadow:0 0 0 1px rgba(51,225,196,.16),0 26px 60px rgba(0,0,0,.55),0 0 60px rgba(59,109,246,.18);
}
.device-screen{position:relative;border-radius:12px;overflow:hidden;aspect-ratio:16/9;background:var(--bg-2)}
.device-screen img{width:100%;height:100%;object-fit:cover}
.device-screen::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,7,13,.05),rgba(5,7,13,.45))}
.device-caption{display:flex;align-items:center;justify-content:space-between;padding:12px 6px 2px;font-size:13px;color:var(--text-3)}

/* 证据区 */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-5);margin-bottom:var(--sp-8)}
.stat-block{padding:var(--sp-6);border-radius:var(--r-l);border:1px solid var(--line);background:linear-gradient(160deg,var(--g-1),var(--g-2));text-align:center}
.stat-block .big{font-family:var(--font-num);font-size:clamp(34px,4vw,52px);font-weight:700;line-height:1.1;color:var(--accent);text-shadow:0 0 26px rgba(51,225,196,.4)}
.stat-block .cap{font-size:13.5px;color:var(--text-3);margin-top:8px;letter-spacing:.04em}
.partner-wall{
  display:grid;grid-template-columns:repeat(6,1fr);gap:var(--sp-4);margin-bottom:var(--sp-8);
}
.partner{
  height:76px;border-radius:var(--r-m);border:1px solid var(--line);display:grid;place-items:center;
  font-size:14px;color:var(--text-3);letter-spacing:.06em;filter:grayscale(1);opacity:.62;
  background:rgba(255,255,255,.02);transition:.25s ease;
}
.partner:hover{filter:grayscale(0);opacity:1;border-color:var(--line-accent);color:var(--text-2)}
.quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-5)}
.quote-card{padding:var(--sp-6);border-radius:var(--r-l);border:1px solid var(--line);background:linear-gradient(160deg,var(--g-1),var(--g-2));position:relative}
.quote-card .qmark{font-family:var(--font-num);font-size:48px;line-height:1;color:rgba(51,225,196,.35)}
.quote-card p{font-size:15.5px;color:var(--text-2);margin:var(--sp-3) 0 var(--sp-5);line-height:1.85}
.quote-sign{display:flex;align-items:center;gap:12px;font-size:13.5px;color:var(--text-3)}
.quote-sign .avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(140deg,var(--brand),var(--accent));display:grid;place-items:center;color:#04121A;font-weight:700;font-size:14px}
.quote-sign b{color:var(--text-2);font-weight:600}

/* 价格 */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-5);align-items:start}
.price-card{
  padding:var(--sp-7) var(--sp-6);border-radius:var(--r-l);border:1px solid var(--line);
  background:linear-gradient(160deg,var(--g-1),var(--g-2));position:relative;
  transition:border-color .2s ease,transform .2s ease;
}
.price-card:hover{border-color:rgba(51,225,196,.3);transform:translateY(-2px)}
.price-card.is-featured{
  transform:translateY(-8px);border-color:var(--line-accent);
  box-shadow:var(--sh-2),0 0 0 1px rgba(51,225,196,.2),0 20px 50px rgba(51,225,196,.14);
}
.price-card.is-featured:hover{transform:translateY(-10px)}
.price-tag{
  position:absolute;top:-13px;right:22px;padding:5px 14px;border-radius:var(--r-p);font-size:12px;font-weight:700;
  color:#04121A;background:linear-gradient(112deg,var(--warm),#FFB199);box-shadow:0 8px 20px rgba(255,123,147,.35);
}
.price-card h3{font-size:20px;font-weight:700;margin-bottom:8px}
.price-card .desc{font-size:14px;color:var(--text-3);margin-bottom:var(--sp-5)}
.price-amount{font-family:var(--font-num);font-size:34px;font-weight:700;color:var(--text);line-height:1.1;margin-bottom:var(--sp-5)}
.price-amount small{font-size:14px;color:var(--text-3);font-family:var(--font-sans);font-weight:400;margin-left:6px}
.feature-list{display:grid;gap:12px;margin-bottom:var(--sp-6)}
.feature-list li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.6}
.feature-list li .ic{flex-shrink:0;width:18px;height:18px;border-radius:50%;display:grid;place-items:center;font-size:11px;margin-top:3px}
.feature-list li.ok .ic{background:rgba(51,225,196,.16);color:var(--accent)}
.feature-list li.no{color:var(--text-3)}
.feature-list li.no .ic{background:rgba(255,255,255,.06);color:var(--text-3)}
.price-note{font-size:13px;color:var(--text-3);margin-top:var(--sp-5);text-align:center}

/* 最新信息 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-5)}
.news-card{
  display:flex;flex-direction:column;border-radius:var(--r-l);overflow:hidden;
  border:1px solid var(--line);background:linear-gradient(160deg,var(--g-1),var(--g-2));
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;border-bottom:1px solid var(--line);
}
.news-card:hover{border-color:rgba(51,225,196,.3);transform:translateY(-2px);box-shadow:var(--sh-2)}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,7,13,0),rgba(5,7,13,.6))}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.news-body .badge{align-self:flex-start;margin-bottom:12px}
.news-title{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--text);margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-title{color:#fff}
.news-desc{
  font-size:14px;color:var(--text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:18px;
  font-size:13px;color:var(--text-3);
}
.news-foot .news-arrow{color:var(--accent);transition:transform .2s ease}
.news-card:hover .news-arrow{transform:translateX(4px)}
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border-radius:var(--r-l);border:1px dashed var(--line-2);background:rgba(255,255,255,.02);text-align:center;padding:var(--sp-7);
}
.empty-state .ico{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;background:rgba(51,225,196,.1);color:var(--accent);font-size:22px;border:1px solid var(--line-accent)}
.empty-state p{color:var(--text-3);font-size:15px}
.skeleton{border-radius:var(--r-l);height:300px;background:linear-gradient(100deg,rgba(255,255,255,.03) 20%,rgba(51,225,196,.09) 40%,rgba(255,255,255,.03) 60%);background-size:220% 100%;animation:shine 1.5s linear infinite}
@keyframes shine{0%{background-position:120% 0}100%{background-position:-120% 0}}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:940px}
.faq-item{border-radius:var(--r-m);border:1px solid var(--line);background:linear-gradient(160deg,var(--g-1),var(--g-2));overflow:hidden;transition:border-color .2s ease}
.faq-item:hover{border-color:rgba(51,225,196,.24)}
.faq-item.is-open{border-color:var(--line-accent)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;padding:20px 22px;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--text);min-height:44px;
}
.faq-idx{font-family:var(--font-num);font-size:13px;color:var(--accent);letter-spacing:.1em;flex-shrink:0}
.faq-q .q-text{flex:1}
.faq-arrow{
  width:22px;height:22px;flex-shrink:0;position:relative;transition:transform .24s ease;color:var(--accent);
}
.faq-arrow::before,.faq-arrow::after{content:"";position:absolute;top:50%;left:50%;background:currentColor;border-radius:2px}
.faq-arrow::before{width:11px;height:1.6px;transform:translate(-50%,-50%)}
.faq-arrow::after{width:1.6px;height:11px;transform:translate(-50%,-50%)}
.faq-item.is-open .faq-arrow{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a-inner{padding:0 22px 22px 60px;font-size:15px;color:var(--text-2);line-height:1.85}
.faq-a-inner p{margin-bottom:10px}
.faq-a-inner p:last-child{margin-bottom:0}

/* 结尾 CTA */
.cta-band{
  padding:var(--sp-8) var(--sp-8);border-radius:var(--r-l);border:1px solid var(--line-accent);
  background:linear-gradient(160deg,rgba(59,109,246,.16),rgba(51,225,196,.08));
  backdrop-filter:blur(14px) saturate(140%);
  display:flex;align-items:center;justify-content:space-between;gap:var(--sp-7);flex-wrap:wrap;
  box-shadow:var(--sh-2),0 0 60px rgba(59,109,246,.14);
}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;margin-bottom:10px}
.cta-band p{color:var(--text-2);font-size:15.5px;max-width:640px}

/* 表单 */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-5)}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:span 2}
.field label{font-size:14px;color:var(--text-2)}
.field input,.field textarea{
  width:100%;padding:13px 16px;border-radius:var(--r-s);color:var(--text);
  background:rgba(255,255,255,.04);border:1px solid var(--line);transition:.18s ease;
}
.field textarea{min-height:120px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(51,225,196,.18)}
.field.has-error input,.field.has-error textarea{border-color:var(--warm);box-shadow:0 0 0 3px rgba(255,123,147,.14)}
.field .hint{font-size:13px;color:var(--text-3)}
.field.has-error .hint{color:var(--warm)}

/* 页脚 */
.site-footer{
  margin-top:var(--sp-9);background:#04060C;border-top:1px solid transparent;position:relative;z-index:1;
}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(51,225,196,.5),transparent)}
.footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:var(--sp-7);padding:var(--sp-9) 0 var(--sp-8)}
.footer-brand .logo{margin-bottom:var(--sp-4)}
.footer-brand p{font-size:14px;color:var(--text-3);line-height:1.8;max-width:340px}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:var(--sp-4);letter-spacing:.04em}
.footer-list{display:grid;gap:11px}
.footer-link{font-size:14px;color:var(--text-3);border:0;transition:color .18s ease}
.footer-link:hover{color:var(--accent)}
.footer-contact li{font-size:14px;color:var(--text-3);display:flex;gap:8px;line-height:1.7;margin-bottom:10px}
.footer-contact li b{color:var(--text-2);font-weight:600}
.footer-bottom{
  border-top:1px solid var(--line);padding:var(--sp-5) 0;display:flex;align-items:center;justify-content:space-between;
  gap:var(--sp-4);flex-wrap:wrap;font-size:13px;color:var(--text-3);
}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap}
.to-top{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--text-3);border:0;transition:color .18s;
}
.to-top:hover{color:var(--accent)}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:26px;bottom:26px;z-index:60;display:flex;align-items:center;gap:10px;
  opacity:0;visibility:hidden;transform:translateY(14px);transition:.28s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-main{
  display:inline-flex;align-items:center;gap:9px;padding:14px 24px;border-radius:var(--r-p);font-size:15px;font-weight:700;
  color:#04121A;background:linear-gradient(112deg,var(--brand),var(--accent));
  box-shadow:0 12px 30px rgba(51,225,196,.3);border:0;
}
.float-main:hover{transform:translateY(-1px);box-shadow:0 16px 38px rgba(51,225,196,.42)}
.float-mini{
  display:inline-flex;align-items:center;gap:8px;padding:12px 18px;border-radius:var(--r-p);font-size:14px;
  color:var(--text-2);border:1px solid var(--line-2);background:rgba(10,16,32,.85);backdrop-filter:blur(10px);
}
.float-mini:hover{color:var(--text);border-color:var(--line-accent)}
.float-mini.is-hidden{display:none}
.float-bar{display:none}

/* 响应式 */
@media (max-width:1200px){
  .hero-grid{gap:var(--sp-7)}
  .demo-grid{gap:var(--sp-7)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .footer-main{grid-template-columns:1.4fr 1fr 1fr;gap:var(--sp-6)}
  .footer-contact{grid-column:span 3}
}
@media (max-width:1024px){
  .nav-main{display:none}
  .nav-toggle{display:grid}
  .hero{min-height:auto}
  .hero-grid{grid-template-columns:1fr;gap:var(--sp-7)}
  .bento{grid-template-columns:repeat(2,1fr)}
  .bento-wide{grid-column:span 2}
  .bento-tall{grid-row:span 1}
  .demo-grid{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .partner-wall{grid-template-columns:repeat(3,1fr)}
  .price-grid{grid-template-columns:1fr;max-width:560px;margin:0 auto}
  .price-card.is-featured{transform:none}
  .price-card.is-featured:hover{transform:translateY(-2px)}
}
@media (max-width:900px){
  .section{padding:72px 0}
  .header-actions .dropdown{display:none}
  .quickbar{top:84px}
}
@media (max-width:768px){
  :root{--c-pc:20px}
  .main-wrap{padding-top:84px}
  .section{padding:56px 0}
  .header-inner{height:64px;padding:0 14px}
  .site-header{padding:10px var(--c-pc)}
  .logo{font-size:15.5px}
  .logo-mark{width:30px;height:30px}
  .hero{padding-top:var(--sp-7)}
  .bento{grid-template-columns:1fr}
  .bento-wide{grid-column:span 1}
  .news-grid{grid-template-columns:1fr}
  .quote-grid{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr 1fr;gap:var(--sp-4)}
  .stat-block{padding:20px 14px}
  .cta-band{padding:var(--sp-6);flex-direction:column;align-items:flex-start}
  .form-grid{grid-template-columns:1fr}
  .field.full{grid-column:span 1}
  .footer-main{grid-template-columns:1fr 1fr;padding:var(--sp-8) 0 var(--sp-6)}
  .footer-contact{grid-column:span 2}
  .faq-a-inner{padding-left:22px}
  .float-cta{display:none}
  .float-bar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:60;
    padding:10px var(--c-pc) calc(10px + env(safe-area-inset-bottom));
    gap:10px;background:rgba(6,9,18,.94);backdrop-filter:blur(14px);
    border-top:1px solid var(--line);transform:translateY(110%);transition:transform .28s ease;
  }
  .float-bar.is-visible{transform:translateY(0)}
  .float-bar .btn{flex:1}
  .float-bar .btn-square{
    flex:0 0 48px;height:48px;border-radius:var(--r-s);border:1px solid var(--line-2);
    background:rgba(255,255,255,.04);color:var(--text-2);display:grid;place-items:center;
  }
}
@media (max-width:560px){
  .hero h1{font-size:clamp(27px,8vw,36px)}
  .stat-strip{grid-template-columns:1fr}
  .partner-wall{grid-template-columns:repeat(2,1fr)}
  .footer-main{grid-template-columns:1fr}
  .footer-contact{grid-column:span 1}
  .btn{width:100%}
  .btn-row{width:100%}
  .btn-text{width:auto}
  .hero-panel{padding:20px}
  .faq-q{font-size:15.5px;padding:16px 16px;gap:12px}
}

/* roulang page: article */
:root{
  --bg-0:#05070D;
  --bg-1:#0A1020;
  --bg-2:#101A31;
  --brand:#3B6DF6;
  --accent:#33E1C4;
  --warm:#FF7B93;
  --text:#E8EEFF;
  --text-2:#A9B6D3;
  --text-3:#6E7D9C;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --line-accent:rgba(51,225,196,.35);
  --glass:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 10px 24px rgba(0,0,0,.35);
  --sh-2:0 18px 40px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(51,225,196,.22),0 18px 48px rgba(51,225,196,.16);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:
    radial-gradient(920px 560px at 6% -8%, rgba(59,109,246,.16), transparent 62%),
    radial-gradient(760px 520px at 98% 10%, rgba(51,225,196,.09), transparent 60%),
    var(--bg-0);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size:68px 68px;
  -webkit-mask-image:radial-gradient(circle at 50% 12%, rgba(0,0,0,.85), transparent 76%);
  mask-image:radial-gradient(circle at 50% 12%, rgba(0,0,0,.85), transparent 76%);
}
body.nav-open{overflow:hidden;}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.page{position:relative;z-index:1;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:900;
  padding:12px 16px;
  transition:padding .3s var(--ease);
}
.header-inner{
  max-width:1240px;
  margin:0 auto;
  height:72px;
  display:flex;
  align-items:center;
  gap:20px;
  padding:0 18px 0 22px;
  border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.06);
  background:rgba(10,16,32,.34);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:background .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled .header-inner{
  background:rgba(7,11,24,.9);
  border-color:var(--line-2);
  box-shadow:var(--sh-2);
}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.02em;flex:none;}
.logo-mark{
  display:grid;place-items:center;
  width:34px;height:34px;
  border-radius:11px;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  color:#04101c;
  box-shadow:0 8px 20px rgba(59,109,246,.35);
}
.logo-text{font-size:17px;color:var(--text);white-space:nowrap;}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;
  padding:8px 13px;
  border-radius:var(--r-pill);
  font-size:14.5px;
  color:var(--text-2);
  white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.06);}
.nav-link.is-active{color:var(--text);background:rgba(51,225,196,.1);}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:3px;
  width:16px;height:2px;border-radius:2px;
  transform:translateX(-50%);
  background:var(--accent);
}
.header-actions{display:flex;align-items:center;gap:10px;flex:none;}
.dropdown{position:relative;}
.dropdown-toggle{
  display:inline-flex;align-items:center;gap:7px;
  height:38px;padding:0 15px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text-2);
  font-size:14px;
  cursor:pointer;
  transition:.2s var(--ease);
}
.dropdown-toggle:hover{color:var(--text);border-color:var(--line-accent);}
.caret{
  width:7px;height:7px;
  border-right:1.6px solid currentColor;
  border-bottom:1.6px solid currentColor;
  transform:rotate(45deg) translateY(-1px);
  transition:transform .2s var(--ease);
}
.dropdown.is-open .caret{transform:rotate(-135deg) translateY(-1px);}
.dropdown-menu{
  position:absolute;
  right:0;top:calc(100% + 12px);
  min-width:190px;
  padding:8px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:rgba(10,16,32,.97);
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;
  transform:translateY(-6px);
  transition:.22s var(--ease);
}
.dropdown.is-open .dropdown-menu{opacity:1;visibility:visible;transform:none;}
.dropdown-menu a{
  display:block;
  padding:9px 12px;
  border-radius:10px;
  font-size:14px;
  color:var(--text-2);
  transition:.18s var(--ease);
}
.dropdown-menu a:hover{background:rgba(51,225,196,.1);color:var(--accent);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  cursor:pointer;
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;
  width:18px;height:1.8px;border-radius:2px;
  background:var(--text);
  transform:translateX(-50%);
  transition:.24s var(--ease);
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";left:0;transform:none;top:-6px;}
.nav-toggle span::after{content:"";left:0;transform:none;top:6px;}
body.nav-open .nav-toggle span{background:transparent;}
body.nav-open .nav-toggle span::before{top:0;transform:rotate(45deg);}
body.nav-open .nav-toggle span::after{top:0;transform:rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;
  border-radius:var(--r-sm);
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .18s ease-out,box-shadow .18s var(--ease),filter .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--accent));
  color:#04101c;
  box-shadow:0 12px 30px rgba(59,109,246,.32);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 18px 40px rgba(51,225,196,.38);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 10px rgba(0,0,0,.32);}
.btn-ghost{
  border-color:var(--line-2);
  background:transparent;
  color:var(--text);
}
.btn-ghost:hover{border-color:var(--line-accent);background:rgba(51,225,196,.08);transform:translateY(-1px);}
.btn-glass{
  border-color:var(--line);
  background:var(--glass);
  color:var(--text);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.btn-glass:hover{border-color:var(--line-accent);transform:translateY(-1px);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn:disabled,.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--accent);
  font-size:15px;font-weight:600;
  border-bottom:1px solid rgba(51,225,196,.3);
  padding-bottom:2px;
  transition:.2s var(--ease);
}
.btn-text:hover{border-color:var(--accent);color:#7ff3dd;}
.btn-text .arrow{transition:transform .2s var(--ease);}
.btn-text:hover .arrow{transform:translateX(4px);}

/* ---------- 面包屑 ---------- */
.page-top{padding-top:118px;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;letter-spacing:.02em;
  color:var(--text-3);
}
.breadcrumb a{color:var(--text-3);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:rgba(255,255,255,.18);}
.breadcrumb .current{color:var(--text-2);}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  margin-top:22px;
  padding:52px 44px 44px;
  border-radius:var(--r-xl);
  border:1px solid var(--line);
  overflow:hidden;
  background-image:
    linear-gradient(120deg, rgba(5,7,13,.92) 12%, rgba(10,16,32,.82) 58%, rgba(5,7,13,.88) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  box-shadow:var(--sh-2);
}
.article-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:44%;
  background:linear-gradient(180deg, rgba(5,7,13,0), rgba(5,7,13,.85));
  pointer-events:none;
}
.article-hero > *{position:relative;z-index:1;}
.post-badge{
  display:inline-flex;align-items:center;gap:7px;
  height:28px;padding:0 13px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-accent);
  background:rgba(51,225,196,.1);
  color:var(--accent);
  font-size:12.5px;letter-spacing:.08em;
}
.post-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent);}
.article-hero h1{
  margin:20px 0 0;
  font-size:clamp(26px,3.6vw,44px);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.015em;
  max-width:900px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:22px;
  font-size:13.5px;
  color:var(--text-3);
  letter-spacing:.03em;
}
.article-meta .split{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.22);}
.hero-rule{
  height:1px;
  margin-top:28px;
  background:linear-gradient(90deg, rgba(51,225,196,.55), rgba(59,109,246,.35), rgba(255,255,255,0));
}

/* ---------- 布局 ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:42px;
  align-items:start;
  padding:44px 0 96px;
}
.article-main{min-width:0;}
.article-body{
  font-size:16.5px;
  line-height:1.9;
  color:var(--text-2);
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 20px;}
.article-body h2{
  position:relative;
  margin:46px 0 18px;
  padding-left:16px;
  font-size:clamp(21px,2.3vw,29px);
  font-weight:700;
  line-height:1.35;
  color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--brand),var(--accent));
}
.article-body h3{
  position:relative;
  margin:34px 0 14px;
  padding-left:13px;
  font-size:19px;font-weight:600;line-height:1.45;
  color:var(--text);
}
.article-body h3::before{
  content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:3px;border-radius:3px;
  background:var(--accent);opacity:.8;
}
.article-body h4{margin:24px 0 12px;font-size:17px;font-weight:600;color:var(--text);}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;}
.article-body ul li{list-style:none;position:relative;margin-bottom:10px;padding-left:16px;}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:6px;height:6px;border-radius:2px;
  background:var(--accent);transform:rotate(45deg);
}
.article-body ol{counter-reset:olc;list-style:none;}
.article-body ol li{counter-increment:olc;position:relative;margin-bottom:10px;padding-left:26px;}
.article-body ol li::before{
  content:counter(olc);
  position:absolute;left:0;top:.35em;
  width:18px;height:18px;
  display:grid;place-items:center;
  border-radius:6px;
  background:rgba(51,225,196,.14);
  color:var(--accent);
  font-size:11.5px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:26px 0;
  padding:18px 24px;
  border-left:3px solid var(--accent);
  border-radius:0 var(--r-md) var(--r-md) 0;
  background:rgba(51,225,196,.07);
  color:var(--text);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  border-radius:var(--r-md);
  border:1px solid var(--line);
  margin:24px 0 10px;
  box-shadow:var(--sh-1);
}
.article-body figcaption{font-size:13px;color:var(--text-3);margin-bottom:22px;text-align:center;}
.article-body a{
  color:var(--accent);
  border-bottom:1px solid rgba(51,225,196,.32);
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.article-body a:hover{border-color:var(--accent);color:#7ff3dd;}
.article-body table{
  width:100%;
  margin:24px 0;
  border-collapse:collapse;
  font-size:14.5px;
  display:block;
  overflow-x:auto;
  border:1px solid var(--line);
  border-radius:var(--r-md);
}
.article-body th,.article-body td{
  padding:12px 16px;
  text-align:left;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.article-body th{color:var(--text);background:rgba(255,255,255,.05);font-weight:600;}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.028);}
.article-body tbody tr:hover{background:rgba(51,225,196,.06);}
.article-body hr{margin:36px 0;border:0;height:1px;background:var(--line);}
.article-body strong{color:var(--text);}

/* ---------- 正文尾部 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:44px 0 0;}
.tag{
  display:inline-flex;align-items:center;
  height:30px;padding:0 14px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text-2);
  font-size:13px;
  transition:.2s var(--ease);
}
.tag:hover{border-color:var(--line-accent);color:var(--accent);}
.tail-actions{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;
  margin-top:26px;padding-top:26px;
  border-top:1px solid var(--line);
}
.related-block{margin-top:56px;}
.section-title-sm{
  display:flex;align-items:center;gap:12px;
  font-size:20px;font-weight:700;color:var(--text);
  margin-bottom:22px;
}
.section-title-sm::after{content:"";flex:1;height:1px;background:var(--line);}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.news-card{
  display:flex;flex-direction:column;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--glass);
  overflow:hidden;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.news-card:hover{transform:translateY(-2px);border-color:var(--line-accent);box-shadow:var(--sh-2);}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .28s var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,13,0) 40%,rgba(5,7,13,.72));
}
.news-thumb .chip{
  position:absolute;left:12px;top:12px;z-index:2;
  height:24px;padding:0 10px;
  display:inline-flex;align-items:center;
  border-radius:var(--r-pill);
  background:rgba(5,7,13,.72);
  border:1px solid var(--line-accent);
  color:var(--accent);
  font-size:12px;
}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-body h3{
  font-size:16.5px;font-weight:600;line-height:1.5;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  font-size:13.5px;line-height:1.75;color:var(--text-3);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--text-3);
}
.news-foot .go{color:var(--accent);transition:transform .2s var(--ease);}
.news-card:hover .news-foot .go{transform:translateX(4px);}

/* ---------- 空态 ---------- */
.empty-card{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  min-height:260px;
  padding:40px 32px;
  text-align:center;
  border-radius:var(--r-xl);
  border:1px dashed var(--line-2);
  background:var(--glass);
}
.empty-card .icon{
  width:56px;height:56px;border-radius:18px;
  display:grid;place-items:center;
  background:rgba(59,109,246,.14);
  color:var(--accent);
}
.empty-card h2{font-size:21px;font-weight:700;color:var(--text);}
.empty-card p{font-size:14.5px;color:var(--text-3);max-width:420px;}

/* ---------- 侧栏 ---------- */
.article-aside{display:flex;flex-direction:column;gap:20px;position:sticky;top:104px;}
.aside-card{
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  padding:22px;
}
.aside-title{
  display:flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;color:var(--accent);
  margin-bottom:14px;
}
.aside-title::before{content:"";width:14px;height:1.5px;background:var(--accent);border-radius:2px;}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:340px;overflow:auto;}
.toc-link{
  display:block;
  padding:7px 10px;
  border-radius:9px;
  font-size:13.5px;
  line-height:1.6;
  color:var(--text-3);
  border-left:2px solid transparent;
  transition:.2s var(--ease);
}
.toc-link.is-sub{padding-left:22px;font-size:13px;}
.toc-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.toc-link.is-active{color:var(--accent);background:rgba(51,225,196,.1);border-left-color:var(--accent);}
.aside-note{font-size:13.5px;line-height:1.8;color:var(--text-3);}
.aside-links{display:flex;flex-direction:column;gap:8px;margin-top:4px;}
.aside-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:10px 12px;
  border-radius:10px;
  font-size:13.8px;
  color:var(--text-2);
  background:rgba(255,255,255,.035);
  border:1px solid transparent;
  transition:.2s var(--ease);
}
.aside-links a:hover{color:var(--accent);border-color:var(--line-accent);transform:translateX(2px);}
.cta-card{
  border-radius:var(--r-lg);
  border:1px solid var(--line-accent);
  background:linear-gradient(160deg,rgba(59,109,246,.2),rgba(51,225,196,.1));
  padding:24px;
  box-shadow:var(--sh-glow);
}
.cta-card h3{font-size:17px;font-weight:700;color:var(--text);line-height:1.5;}
.cta-card p{margin-top:10px;font-size:13.5px;line-height:1.8;color:var(--text-2);}
.cta-card .btn{width:100%;margin-top:16px;}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  background:linear-gradient(180deg,rgba(6,9,18,.4),#04060c 40%);
  border-top:1px solid var(--line);
  padding:64px 0 0;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(51,225,196,0),rgba(51,225,196,.5),rgba(59,109,246,.4),rgba(51,225,196,0));
}
.footer-main{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--text-3);max-width:340px;}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.04em;}
.footer-list{display:flex;flex-direction:column;gap:11px;}
.footer-link{font-size:14px;color:var(--text-3);transition:color .2s var(--ease);}
.footer-link:hover{color:var(--accent);}
.footer-contact ul{display:flex;flex-direction:column;gap:11px;}
.footer-contact li{font-size:14px;color:var(--text-3);line-height:1.7;}
.footer-contact b{color:var(--text-2);font-weight:600;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0 26px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom .links{display:flex;flex-wrap:wrap;align-items:center;gap:18px;}
.to-top{
  background:none;border:0;color:var(--text-3);font-size:13px;cursor:pointer;
  padding:6px 2px;transition:color .2s var(--ease);
}
.to-top:hover{color:var(--accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:34px;}
  .article-aside{position:static;flex-direction:row;flex-wrap:wrap;}
  .article-aside > *{flex:1 1 300px;}
}
@media (max-width:1024px){
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:900px){
  .container{padding:0 20px;}
  .site-header{padding:10px 12px;}
  .header-inner{height:64px;padding:0 12px 0 16px;gap:12px;}
  .logo-text{font-size:16px;}
  .nav-main{
    position:fixed;
    left:12px;right:12px;top:88px;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    margin-left:0;
    padding:14px;
    border-radius:22px;
    border:1px solid var(--line-2);
    background:rgba(8,12,26,.98);
    box-shadow:0 30px 70px rgba(0,0,0,.65);
    max-height:calc(100vh - 120px);
    overflow:auto;
    opacity:0;visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s;
  }
  body.nav-open .nav-main{opacity:1;visibility:visible;transform:none;}
  .nav-link{padding:13px 14px;font-size:15.5px;}
  .nav-link.is-active::after{left:14px;transform:none;}
  .nav-toggle{display:inline-flex;}
  .dropdown{display:none;}
  .page-top{padding-top:100px;}
  .article-hero{padding:38px 24px 32px;border-radius:var(--r-lg);}
}
@media (max-width:768px){
  .news-grid{grid-template-columns:minmax(0,1fr);}
  .article-body{font-size:16px;}
  .article-layout{padding:32px 0 72px;}
  .footer-main{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .article-aside{flex-direction:column;}
}
@media (max-width:560px){
  .btn{width:100%;}
  .tail-actions .btn{width:100%;}
  .header-actions .btn-sm{display:none;}
  .article-hero h1{font-size:25px;}
  .page-top{padding-top:92px;}
  .site-footer{padding-top:48px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --bg-0:#05070D;
  --bg-1:#0A1020;
  --bg-2:#101A31;
  --brand:#3B6DF6;
  --brand-2:#5B8CFF;
  --accent:#33E1C4;
  --warm:#FF7B93;
  --text:#E8EEFF;
  --text-2:#A9B6D3;
  --text-3:#6E7D9C;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --line-accent:rgba(51,225,196,.35);
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 8px 22px rgba(0,0,0,.32);
  --sh-2:0 18px 40px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(51,225,196,.18), 0 14px 34px rgba(59,109,246,.26);
  --container:1240px;
  --header-h:72px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background-color:var(--bg-0);
  overflow-x:hidden;
  padding-top:var(--header-h);
  -webkit-font-smoothing:antialiased;
}
body.is-locked{overflow:hidden}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  pointer-events:none;
  background:
    radial-gradient(780px 540px at 6% 2%, rgba(59,109,246,.17), transparent 62%),
    radial-gradient(700px 560px at 94% 92%, rgba(51,225,196,.12), transparent 60%),
    var(--bg-0);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  opacity:.55;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(circle at 50% 18%, #000 18%, transparent 76%);
  mask-image:radial-gradient(circle at 50% 18%, #000 18%, transparent 76%);
}
img{max-width:100%;display:block;border:0}
a{color:var(--accent);text-decoration:none;background:none}
a:hover{color:#5BF2D8}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 16px}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--bg-2);color:var(--text);padding:10px 18px;border-radius:0 0 var(--r-sm) 0;
}
.skip-link:focus{left:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
  white-space:nowrap;
}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn-primary{
  color:#04121F;
  background:linear-gradient(112deg,var(--brand) 0%,#4F86FF 46%,var(--accent) 100%);
  box-shadow:0 10px 26px rgba(59,109,246,.34), inset 0 1px 0 rgba(255,255,255,.28);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 14px 34px rgba(59,109,246,.46), 0 0 0 1px rgba(51,225,196,.34)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 8px rgba(0,0,0,.35)}
.btn-ghost{
  color:var(--text);
  border-color:var(--line-2);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
}
.btn-ghost:hover{transform:translateY(-1px);border-color:var(--line-accent);color:#fff;box-shadow:var(--sh-1)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--accent);font-size:15px;font-weight:600;
  border-bottom:1px solid rgba(51,225,196,.4);
  padding-bottom:2px;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.text-link .arrow{transition:transform .2s var(--ease)}
.text-link:hover{border-color:var(--accent);color:#5BF2D8}
.text-link:hover .arrow{transform:translateX(4px)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  transition:background-color .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease),backdrop-filter .25s var(--ease);
  border-bottom:1px solid transparent;
  background:linear-gradient(180deg,rgba(5,7,13,.72),rgba(5,7,13,.28));
  backdrop-filter:blur(10px) saturate(140%);
}
.site-header.is-scrolled{
  background:rgba(7,10,20,.94);
  border-bottom-color:var(--line);
  box-shadow:0 12px 30px rgba(0,0,0,.42);
  backdrop-filter:blur(16px) saturate(150%);
}
.header-inner{
  width:100%;max-width:var(--container);margin:0 auto;
  padding:0 32px;height:var(--header-h);
  display:flex;align-items:center;gap:24px;
}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto}
.logo:hover{color:var(--text)}
.logo-mark{
  width:34px;height:34px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  color:#04121F;
  background:linear-gradient(140deg,var(--accent),var(--brand));
  box-shadow:0 8px 20px rgba(51,225,196,.28);
}
.logo-text{font-size:17px;font-weight:800;letter-spacing:.02em}
.nav-main{display:flex;align-items:center;gap:6px;margin-left:12px}
.nav-link{
  position:relative;color:var(--text-2);font-size:15px;font-weight:500;
  padding:10px 14px;border-radius:var(--r-pill);
  transition:color .18s var(--ease),background-color .18s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--text);background:rgba(51,225,196,.1)}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.dropdown{position:relative}
.dropdown-toggle{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 16px;border-radius:var(--r-pill);
  color:var(--text-2);font-size:14px;font-weight:500;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  cursor:pointer;transition:color .18s var(--ease),border-color .18s var(--ease);
}
.dropdown-toggle:hover{color:var(--text);border-color:var(--line-accent)}
.caret{width:7px;height:7px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .2s var(--ease)}
.dropdown.is-open .caret{transform:rotate(225deg) translateY(-1px)}
.dropdown-menu{
  position:absolute;right:0;top:calc(100% + 10px);min-width:184px;
  padding:8px;border-radius:var(--r-md);
  background:rgba(10,16,32,.97);border:1px solid var(--line);
  box-shadow:var(--sh-2);
  display:none;
}
.dropdown.is-open .dropdown-menu{display:block}
.dropdown-menu a{
  display:block;padding:9px 12px;border-radius:10px;
  color:var(--text-2);font-size:14px;
}
.dropdown-menu a:hover{background:rgba(51,225,196,.1);color:var(--text)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  cursor:pointer;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;transform:translateX(-50%);
  width:18px;height:1.8px;border-radius:2px;background:var(--text);
  transition:transform .25s var(--ease),opacity .25s var(--ease);
  content:"";
}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{top:-6px;left:0;transform:none}
.nav-toggle span::after{top:6px;left:0;transform:none}
body.nav-open .nav-toggle span{background:transparent}
body.nav-open .nav-toggle span::before{transform:rotate(45deg);top:0}
body.nav-open .nav-toggle span::after{transform:rotate(-45deg);top:0}

/* ---------- 移动端抽屉 ---------- */
.mobile-mask{
  position:fixed;inset:0;z-index:130;
  background:rgba(3,5,10,.66);
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);
}
body.nav-open .mobile-mask{opacity:1;visibility:visible}
.mobile-panel{
  position:fixed;top:0;right:0;bottom:0;z-index:140;
  width:min(360px,88vw);
  padding:22px 22px 32px;
  background:linear-gradient(180deg,#0A1020,#060910);
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .3s var(--ease);
  overflow-y:auto;
}
body.nav-open .mobile-panel{transform:translateX(0)}
.mobile-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
.mobile-close{
  min-width:44px;min-height:44px;padding:0 12px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--text-2);font-size:14px;cursor:pointer;
}
.mobile-close:hover{color:var(--text);border-color:var(--line-accent)}
.mobile-nav{display:flex;flex-direction:column;gap:2px;padding:18px 0;border-bottom:1px solid var(--line)}
.mobile-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 12px;border-radius:12px;
  color:var(--text-2);font-size:15px;font-weight:500;
}
.mobile-nav a:hover{background:rgba(255,255,255,.05);color:var(--text)}
.mobile-nav a.is-active{background:rgba(51,225,196,.1);color:var(--text)}
.mobile-anchors{display:flex;flex-wrap:wrap;gap:8px;padding:18px 0}
.mobile-anchors a{
  padding:8px 14px;border-radius:var(--r-pill);font-size:13px;
  color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.mobile-anchors a:hover{color:var(--text);border-color:var(--line-accent)}
.mobile-panel .btn{margin-top:8px}
.mobile-note{margin-top:18px;font-size:13px;line-height:1.8;color:var(--text-3)}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);letter-spacing:.04em}
.breadcrumb a{color:var(--text-2);border-bottom:1px solid transparent}
.breadcrumb a:hover{color:var(--accent);border-color:rgba(51,225,196,.4)}
.breadcrumb .sep{color:rgba(255,255,255,.2)}
.breadcrumb .current{color:var(--accent)}

/* ---------- 页面首屏 ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  filter:saturate(110%);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(100deg,rgba(5,7,13,.92) 0%,rgba(5,7,13,.78) 46%,rgba(5,7,13,.56) 100%),
    linear-gradient(180deg,rgba(5,7,13,.2) 0%,rgba(5,7,13,.95) 100%);
}
.hero-inner{position:relative;z-index:2;padding:64px 32px 72px;max-width:var(--container)}
.eyebrow{
  display:inline-block;margin:26px 0 14px;
  font-size:12.5px;letter-spacing:.16em;color:var(--accent);
  padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(51,225,196,.28);background:rgba(51,225,196,.07);
}
.page-title{
  font-size:clamp(30px,4.4vw,54px);
  font-weight:800;line-height:1.15;letter-spacing:-.02em;
  max-width:900px;margin-bottom:18px;
}
.page-title em{font-style:normal;background:linear-gradient(100deg,var(--accent),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.lede{max-width:720px;font-size:17px;line-height:1.85;color:var(--text-2)}
.hero-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin:30px 0 0}
.stat-row{display:flex;flex-wrap:wrap;gap:14px 40px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line)}
.stat-row li{display:flex;align-items:baseline;gap:8px}
.stat-row b{font-size:28px;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums;text-shadow:0 0 22px rgba(51,225,196,.35)}
.stat-row span{font-size:13.5px;color:var(--text-3);letter-spacing:.04em}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-head{max-width:760px;margin-bottom:40px}
.section-tag{display:block;font-size:12.5px;letter-spacing:.16em;color:var(--accent);margin-bottom:12px}
.section-title{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.28;margin-bottom:14px}
.section-sub{font-size:16px;color:var(--text-2);line-height:1.85}
.lead-text{max-width:880px;font-size:17px;line-height:1.9;color:var(--text-2)}
.lead-text strong{color:var(--text)}

/* ---------- 标签行 ---------- */
.tag-row{
  display:flex;gap:10px;flex-wrap:wrap;
  padding:12px;border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
  backdrop-filter:blur(12px) saturate(140%);
  margin-bottom:32px;
}
.tag{
  padding:9px 18px;border-radius:var(--r-pill);
  font-size:13.5px;color:var(--text-2);
  border:1px solid transparent;
  transition:color .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease);
}
.tag:hover{color:var(--text);background:rgba(255,255,255,.06)}
.tag.is-active{
  color:#04121F;font-weight:600;
  background:linear-gradient(110deg,var(--accent),#5BF2D8);
  box-shadow:0 8px 20px rgba(51,225,196,.26);
}

/* ---------- 功能卡片网格 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{
  position:relative;display:flex;flex-direction:column;
  border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-2);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.feature-card:hover{transform:translateY(-2px);border-color:rgba(51,225,196,.3);box-shadow:0 24px 48px rgba(0,0,0,.5), var(--sh-glow)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.feature-card:hover .card-media img{transform:scale(1.03)}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,7,13,.06),rgba(5,7,13,.72))}
.card-badge{
  position:absolute;left:14px;top:14px;z-index:2;
  padding:6px 12px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.04em;
  color:#04121F;background:linear-gradient(110deg,var(--accent),#5BF2D8);
}
.card-badge.is-warm{background:linear-gradient(110deg,var(--warm),#FFA2B3);color:#2A0A12}
.card-body{padding:24px;display:flex;flex-direction:column;flex:1}
.card-index{
  font-size:12.5px;letter-spacing:.16em;color:var(--accent);
  font-variant-numeric:tabular-nums;margin-bottom:10px;
}
.card-title{font-size:19px;font-weight:700;line-height:1.45;margin-bottom:10px}
.card-text{font-size:14.5px;line-height:1.85;color:var(--text-2);margin-bottom:18px}
.card-points{display:flex;flex-direction:column;gap:8px;margin-bottom:20px}
.card-points li{position:relative;padding-left:18px;font-size:14px;color:var(--text-2)}
.card-points li::before{
  content:"";position:absolute;left:2px;top:11px;
  width:6px;height:6px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 10px rgba(51,225,196,.6);
}
.card-meta{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.card-meta a{color:var(--accent);font-weight:600;display:inline-flex;align-items:center;gap:5px}
.card-meta a .arrow{transition:transform .2s var(--ease)}
.card-meta a:hover .arrow{transform:translateX(4px)}

/* ---------- 中部转化条 ---------- */
.mid-cta{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:32px 36px;border-radius:var(--r-lg);
  border:1px solid rgba(51,225,196,.22);
  background:
    radial-gradient(520px 200px at 12% 10%, rgba(59,109,246,.22), transparent 66%),
    linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-2);
}
.mid-cta h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;margin-bottom:8px}
.mid-cta p{font-size:14.5px;color:var(--text-2);margin:0}

/* ---------- 要点小结 ---------- */
.point-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.point-item{
  padding:24px;border-radius:var(--r-md);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.point-item:hover{border-color:rgba(51,225,196,.3);transform:translateY(-2px)}
.point-item h3{font-size:17px;font-weight:600;margin-bottom:8px}
.point-item p{font-size:14.5px;color:var(--text-2);margin:0}
.point-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:9px;margin-bottom:14px;
  font-size:13px;font-weight:700;color:var(--accent);
  background:rgba(51,225,196,.1);border:1px solid rgba(51,225,196,.24);
}

/* ---------- 对照表 ---------- */
.table-wrap{
  overflow-x:auto;border-radius:var(--r-md);
  border:1px solid var(--line);background:rgba(10,16,32,.7);
}
table{width:100%;border-collapse:collapse;min-width:720px}
thead th{
  position:sticky;top:0;
  background:rgba(16,26,49,.98);
  text-align:left;font-size:13.5px;font-weight:600;color:var(--text);
  padding:16px 20px;border-bottom:1px solid var(--line-2);white-space:nowrap;
}
tbody td{
  padding:16px 20px;font-size:14.5px;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
tbody tr:nth-child(odd) td{background:rgba(255,255,255,.02)}
tbody tr:hover td{background:rgba(51,225,196,.06);color:var(--text)}
td .pill{
  display:inline-block;padding:4px 10px;border-radius:var(--r-pill);
  font-size:12px;color:var(--accent);background:rgba(51,225,196,.1);border:1px solid rgba(51,225,196,.24);
}
td .pill.is-warm{color:#FFB9C6;background:rgba(255,123,147,.12);border-color:rgba(255,123,147,.3)}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-md);
  background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
  overflow:hidden;
  transition:border-color .2s var(--ease);
}
.faq-item.is-open{border-color:rgba(51,225,196,.32)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:20px 24px;background:none;border:0;cursor:pointer;
  color:var(--text);font-size:16.5px;font-weight:600;line-height:1.6;
}
.faq-no{
  flex:0 0 auto;font-size:13px;color:var(--accent);
  font-variant-numeric:tabular-nums;letter-spacing:.06em;
}
.faq-q .sign{
  margin-left:auto;flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform .24s var(--ease);
}
.faq-q .sign::before,.faq-q .sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--accent);border-radius:2px;
}
.faq-q .sign::before{width:12px;height:1.8px;transform:translate(-50%,-50%)}
.faq-q .sign::after{width:1.8px;height:12px;transform:translate(-50%,-50%)}
.faq-item.is-open .faq-q .sign{transform:rotate(90deg)}
.faq-item.is-open .faq-q .sign::after{opacity:0}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .24s var(--ease),padding .24s var(--ease);
}
.faq-item.is-open .faq-a{max-height:360px}
.faq-a p{margin:0;padding:0 24px 22px 58px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ---------- 结尾 CTA ---------- */
.end-cta{
  padding:44px 40px;border-radius:var(--r-lg);text-align:center;
  border:1px solid rgba(51,225,196,.24);
  background:
    radial-gradient(620px 240px at 50% 0%, rgba(59,109,246,.24), transparent 68%),
    linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.02));
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-2);
}
.end-cta h2{font-size:clamp(22px,2.8vw,32px);font-weight:700;margin-bottom:14px}
.end-cta p{max-width:640px;margin:0 auto 26px;color:var(--text-2);font-size:15.5px}
.end-cta .actions{display:flex;align-items:center;justify-content:center;gap:20px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:20px;
  border-top:1px solid var(--line);
  background:#04060C;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(51,225,196,.5),transparent);
}
.footer-main{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding:64px 0 44px;
}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--text-3);max-width:320px}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.04em}
.footer-list{display:flex;flex-direction:column;gap:11px}
.footer-link{color:var(--text-3);font-size:14px;border-bottom:1px solid transparent;transition:color .18s var(--ease)}
.footer-link:hover{color:var(--accent)}
.footer-contact ul{display:flex;flex-direction:column;gap:11px}
.footer-contact li{font-size:14px;color:var(--text-3)}
.footer-contact b{color:var(--text-2);font-weight:600}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:var(--text-3);
}
.footer-bottom .links{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.to-top{
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--text-2);font-size:13.5px;
  padding:9px 16px;border-radius:var(--r-pill);cursor:pointer;
  transition:color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.to-top:hover{color:var(--accent);border-color:var(--line-accent);transform:translateY(-1px)}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:28px;z-index:110;
  display:flex;align-items:center;gap:10px;
  padding:10px;border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:rgba(10,16,32,.9);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s var(--ease);
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-toggle{
  width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line);background:rgba(255,255,255,.05);
  color:var(--accent);font-size:18px;line-height:1;cursor:pointer;
  transition:transform .24s var(--ease),border-color .18s var(--ease);
}
.float-toggle:hover{border-color:var(--line-accent)}
.float-cta.is-open .float-toggle{transform:rotate(45deg)}
.float-actions{
  display:none;flex-direction:column;gap:6px;
  padding:8px;border-radius:var(--r-md);border:1px solid var(--line);
  background:rgba(10,16,32,.96);
}
.float-cta.is-open .float-actions{display:flex}
.float-actions a{font-size:13.5px;color:var(--text-2);padding:6px 10px;border-radius:8px}
.float-actions a:hover{background:rgba(51,225,196,.1);color:var(--text)}

/* ---------- 骨架占位 ---------- */
.skeleton{
  position:relative;overflow:hidden;background:rgba(110,125,156,.16);border-radius:var(--r-sm);
}
.skeleton::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.08),transparent);
  transform:translateX(-100%);
  animation:sheen 1.4s infinite;
}
@keyframes sheen{to{transform:translateX(100%)}}

@keyframes floaty{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-6px)}
}
.floaty{animation:floaty 7s ease-in-out infinite}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .footer-main{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:1024px){
  .nav-main{display:none}
  .dropdown{display:none}
  .nav-toggle{display:block}
  .header-inner{padding:0 24px}
  .container{padding:0 24px}
  .point-list{grid-template-columns:1fr}
}
@media (max-width:900px){
  .section{padding:72px 0}
  .hero-inner{padding:48px 24px 56px}
}
@media (max-width:768px){
  .feature-grid{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr 1fr;padding:48px 0 32px}
  .mid-cta{padding:26px 24px}
  .end-cta{padding:34px 24px}
  .stat-row{gap:16px 28px}
  .stat-row b{font-size:24px}
}
@media (max-width:560px){
  body{font-size:15.5px}
  .container{padding:0 20px}
  .header-inner{padding:0 16px}
  .hero-inner{padding:40px 20px 48px}
  .page-title{font-size:clamp(26px,7.6vw,34px)}
  .lede{font-size:15.5px}
  .hero-actions{flex-direction:column;align-items:stretch;gap:14px}
  .hero-actions .btn{width:100%}
  .hero-actions .text-link{justify-content:center}
  .section{padding:56px 0}
  .tag-row{border-radius:var(--r-md);padding:10px}
  .faq-a p{padding-left:24px}
  .footer-main{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
  .float-cta{
    left:12px;right:12px;bottom:12px;border-radius:var(--r-md);
    justify-content:space-between;padding:8px 8px 8px 10px;
  }
  .float-cta .btn{flex:1;margin-right:8px}
  .float-actions,.float-toggle{display:none}
}
@media (max-width:400px){
  .page-title{font-size:24px}
  .card-body{padding:20px}
  .faq-q{padding:16px;font-size:15.5px}
}
@media (prefers-reduced-transparency:reduce){
  .tag-row,.feature-card,.mid-cta,.end-cta,.float-cta,.site-header{backdrop-filter:none}
}

/* roulang page: category2 */
:root{
  --bg-0:#05070D;
  --bg-1:#0A1020;
  --bg-2:#101A31;
  --brand:#3B6DF6;
  --accent:#33E1C4;
  --warm:#FF7B93;
  --text:#E8EEFF;
  --text-2:#A9B6D3;
  --text-3:#6E7D9C;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --line-accent:rgba(51,225,196,.35);
  --r-xs:10px;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 8px 22px rgba(0,0,0,.32);
  --sh-2:0 18px 40px rgba(0,0,0,.45);
  --sh-glow:0 14px 40px rgba(59,109,246,.34);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px; --sp-10:120px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:"Inter","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text-2);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 620px at 8% -6%, rgba(59,109,246,.16), transparent 62%),
    radial-gradient(820px 560px at 98% 12%, rgba(51,225,196,.10), transparent 60%),
    radial-gradient(700px 520px at 50% 108%, rgba(255,123,147,.07), transparent 62%),
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size:auto,auto,auto,64px 64px,64px 64px;
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--accent);text-decoration:none;border-bottom:1px solid rgba(51,225,196,.32);transition:border-color .18s ease,color .18s ease}
a:hover{color:#5FF0D6;border-bottom-color:rgba(51,225,196,.85)}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;line-height:1.25;letter-spacing:-.01em}
h1{font-size:clamp(30px,4.6vw,56px);font-weight:800;line-height:1.15;letter-spacing:-.02em}
h2{font-size:clamp(24px,3vw,38px)}
h3{font-size:clamp(18px,2vw,21px);font-weight:600;line-height:1.4}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:none;cursor:pointer}
input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--bg-2);color:var(--text);padding:12px 18px;border-radius:0 0 var(--r-sm) 0;z-index:200}
.skip-link:focus{left:0}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease-out,box-shadow .18s ease-out,filter .18s ease-out,background-color .18s ease-out,border-color .18s ease-out;
}
.btn-primary{
  color:#04121C;
  background-image:linear-gradient(120deg,#3B6DF6 0%,#33E1C4 100%);
  box-shadow:0 10px 28px rgba(51,225,196,.28),0 4px 14px rgba(59,109,246,.32);
  border-bottom:0;
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 14px 36px rgba(51,225,196,.4),0 6px 18px rgba(59,109,246,.4);color:#04121C}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 8px rgba(0,0,0,.28)}
.btn-ghost{
  color:var(--text);border:1px solid var(--line-2);background:rgba(255,255,255,.04);
}
.btn-ghost:hover{transform:translateY(-1px);border-color:var(--line-accent);background:rgba(51,225,196,.08);color:var(--text)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;filter:none;box-shadow:none}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;
  color:var(--accent);border-bottom:1px solid rgba(51,225,196,.35);padding-bottom:2px;
}
.link-arrow i{font-style:normal;transition:transform .18s ease-out}
.link-arrow:hover i{transform:translateX(4px)}

/* ============ 页头 ============ */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(5,7,13,.42);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.05);
  transition:background-color .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(6,9,18,.92);
  border-bottom-color:var(--line-2);
  box-shadow:0 14px 34px rgba(0,0,0,.5);
}
.header-inner{
  max-width:1240px;margin:0 auto;padding:0 32px;height:var(--header-h);
  display:flex;align-items:center;gap:24px;
}
.logo{display:inline-flex;align-items:center;gap:10px;border-bottom:0;color:var(--text)}
.logo-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  color:#06131A;background-image:linear-gradient(135deg,#3B6DF6,#33E1C4);
  box-shadow:0 8px 20px rgba(59,109,246,.35);
}
.logo-text{font-size:17px;font-weight:800;letter-spacing:.01em;color:var(--text)}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto}
.nav-link{
  position:relative;border-bottom:0;color:var(--text-2);font-size:14.5px;font-weight:500;
  padding:9px 12px;border-radius:var(--r-pill);transition:color .18s ease,background-color .18s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--text);background:rgba(51,225,196,.12)}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background-image:linear-gradient(90deg,#33E1C4,#3B6DF6);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.dropdown{position:relative}
.dropdown-toggle{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--text-2);font-size:14px;font-weight:500;
  transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}
.dropdown-toggle:hover{color:var(--text);border-color:var(--line-2);background:rgba(255,255,255,.07)}
.caret{width:7px;height:7px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg) translate(-2px,-2px);transition:transform .2s ease}
.dropdown.is-open .caret{transform:rotate(225deg) translate(-1px,-1px)}
.dropdown-menu{
  position:absolute;right:0;top:calc(100% + 12px);min-width:196px;padding:8px;
  border-radius:var(--r-md);border:1px solid var(--line-2);
  background:linear-gradient(160deg,rgba(20,30,54,.98),rgba(10,16,32,.98));
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.dropdown.is-open .dropdown-menu{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown-menu a{
  display:block;padding:9px 12px;border-radius:var(--r-xs);border-bottom:0;
  color:var(--text-2);font-size:14px;
}
.dropdown-menu a:hover{background:rgba(51,225,196,.1);color:var(--text)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.05);position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:1.8px;border-radius:2px;background:var(--text);
  transform:translateX(-50%);transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span::after{transform:translateY(-6px) rotate(-45deg)}
.nav-extra{display:none}
.nav-mask{
  position:fixed;inset:0;background:rgba(3,5,10,.62);backdrop-filter:blur(2px);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:65;
}
.nav-mask.is-open{opacity:1;visibility:visible}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section.tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:48px}
.eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:.16em;color:var(--accent);
  margin-bottom:14px;font-weight:600;
}
.section-head h2{margin-bottom:16px}
.section-head p{font-size:16px;color:var(--text-2)}
.glass{
  background-image:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  box-shadow:var(--sh-2),inset 0 1px 0 rgba(255,255,255,.06);
  border-radius:var(--r-lg);
}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);
  font-size:12.5px;letter-spacing:.04em;color:var(--accent);
  background:rgba(51,225,196,.1);border:1px solid var(--line-accent);
}
.badge{
  display:inline-flex;align-items:center;padding:4px 11px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.04em;color:#06131A;font-weight:700;
  background-image:linear-gradient(120deg,#33E1C4,#3B6DF6);
}
.badge-soft{background:rgba(59,109,246,.16);color:#9FBBFF;border:1px solid rgba(59,109,246,.34);font-weight:600}
.divider{height:1px;border:0;margin:0;background-image:linear-gradient(90deg,rgba(51,225,196,.5),rgba(255,255,255,.06),transparent)}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.04em;color:var(--text-3);margin-bottom:22px;
}
.breadcrumb a{border-bottom:0;color:var(--text-3)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:rgba(255,255,255,.2)}
.breadcrumb .current{color:var(--text-2)}

/* ============ 首屏 ============ */
.page-hero{position:relative;overflow:hidden;padding:72px 0 84px;border-bottom:1px solid var(--line)}
.page-hero .hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(5,7,13,.94) 0%,rgba(5,7,13,.78) 46%,rgba(5,7,13,.62) 100%),
                   linear-gradient(180deg,rgba(5,7,13,.72) 0%,rgba(5,7,13,.9) 74%,var(--bg-0) 100%),
                   url('/assets/images/backpic/back-2.webp');
  background-size:cover,cover,cover;
  background-position:center,center,center;
  filter:saturate(105%);
}
.page-hero .hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px;align-items:center}
.hero-copy h1{margin-bottom:18px;max-width:16em}
.hero-lead{font-size:17px;line-height:1.85;color:var(--text-2);max-width:34em;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-bottom:30px}
.hero-stats{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:14px;color:var(--text-2)}
.hero-stats li{display:inline-flex;align-items:center;gap:8px}
.hero-stats li + li::before{content:"·";color:var(--text-3);margin-right:10px}
.hero-stats b{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:18px;color:var(--accent);font-weight:700;text-shadow:0 0 18px rgba(51,225,196,.4)}
.hero-panel{padding:26px;animation:floaty 7.5s ease-in-out infinite}
.hero-panel h2{font-size:16px;font-weight:600;color:var(--text-2);letter-spacing:.04em;margin-bottom:18px}
.panel-rows{display:grid;gap:14px}
.panel-row{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding-bottom:12px;border-bottom:1px dashed rgba(255,255,255,.1)}
.panel-row:last-child{border-bottom:0;padding-bottom:0}
.panel-row span{font-size:13.5px;color:var(--text-3)}
.panel-row b{font-family:var(--font-num);font-size:22px;color:var(--text);font-weight:700}
.panel-bar{margin-top:18px}
.panel-bar p{display:flex;justify-content:space-between;font-size:13px;color:var(--text-3);margin-bottom:8px}
.panel-bar .track{height:6px;border-radius:var(--r-pill);background:rgba(255,255,255,.08);overflow:hidden}
.panel-bar .fill{height:100%;width:62%;border-radius:var(--r-pill);background-image:linear-gradient(90deg,#3B6DF6,#33E1C4);box-shadow:0 0 16px rgba(51,225,196,.5)}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}

/* ============ 阶段速览条 ============ */
.stage-tabs{position:sticky;top:calc(var(--header-h) + 10px);z-index:40;margin:-34px auto 0;width:100%}
.stage-tabs-inner{
  display:flex;gap:10px;overflow-x:auto;padding:10px;border-radius:var(--r-pill);
  background:rgba(9,14,28,.86);border:1px solid var(--line-2);box-shadow:var(--sh-1);
  backdrop-filter:blur(12px);
}
.stage-tabs a{
  flex:0 0 auto;padding:9px 16px;border-radius:var(--r-pill);border-bottom:0;
  color:var(--text-2);font-size:13.5px;white-space:nowrap;border:1px solid transparent;
  transition:color .18s ease,background-color .18s ease,border-color .18s ease;
}
.stage-tabs a:hover{color:var(--text);background:rgba(255,255,255,.06)}
.stage-tabs a.is-active{color:#06131A;background-image:linear-gradient(120deg,#33E1C4,#3B6DF6);font-weight:700}

/* ============ 时间轴 ============ */
.timeline{position:relative;margin-top:8px}
.tl-item{position:relative;padding-left:84px;padding-bottom:36px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:20px;top:46px;bottom:-4px;width:2px;
  background-image:linear-gradient(180deg,rgba(51,225,196,.55),rgba(59,109,246,.28),rgba(59,109,246,0));
}
.tl-item:last-child::before{display:none}
.tl-dot{
  position:absolute;left:0;top:4px;width:42px;height:42px;border-radius:50%;
  display:grid;place-items:center;
  font-family:var(--font-num);font-size:15px;font-weight:700;color:#06131A;
  background-image:linear-gradient(135deg,#33E1C4,#3B6DF6);
  box-shadow:0 0 0 6px rgba(51,225,196,.09),0 10px 26px rgba(51,225,196,.34);
}
.tl-card{padding:26px 28px;border-radius:var(--r-lg);transition:border-color .2s ease,transform .2s ease}
.tl-card:hover{border-color:var(--line-accent);transform:translateY(-2px)}
.tl-head{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:12px}
.tl-head h3{margin-right:4px}
.tl-meta{font-size:13px;color:var(--text-3);letter-spacing:.04em;font-family:var(--font-num)}
.tl-card p{font-size:16px;line-height:1.9;color:var(--text-2)}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tl-note{
  margin-top:16px;padding:12px 16px;border-radius:var(--r-sm);font-size:14px;color:var(--text-2);
  background:rgba(51,225,196,.06);border-left:2px solid var(--accent);
}

/* ============ 中段 CTA ============ */
.cta-mid{padding:0 0 8px}
.cta-mid-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  padding:28px 32px;border-radius:var(--r-lg);
}
.cta-mid-inner h2{font-size:clamp(20px,2.4vw,26px);margin-bottom:6px}
.cta-mid-inner p{font-size:15px;color:var(--text-2)}
.cta-mid-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

/* ============ 要点清单 ============ */
.check-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:44px;align-items:center}
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:16px 24px}
.check-item{display:flex;gap:12px;align-items:flex-start}
.check-icon{
  flex:0 0 auto;width:24px;height:24px;border-radius:8px;display:grid;place-items:center;
  background:rgba(51,225,196,.14);border:1px solid var(--line-accent);color:var(--accent);font-size:13px;font-weight:700;
}
.check-item h3{font-size:16px;margin-bottom:4px}
.check-item p{font-size:14px;color:var(--text-2);line-height:1.8}
.figure{margin:0;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2);position:relative}
.figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.figure figcaption{position:absolute;left:0;right:0;bottom:0;padding:18px 20px;font-size:13.5px;color:var(--text-2);background:linear-gradient(180deg,transparent,rgba(5,7,13,.9))}
.data-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:52px;
  padding:28px 32px;border-radius:var(--r-lg);
}
.data-strip div{border-left:1px solid var(--line);padding-left:20px}
.data-strip div:first-child{border-left:0;padding-left:0}
.data-strip b{display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:clamp(30px,3.4vw,42px);color:var(--accent);text-shadow:0 0 22px rgba(51,225,196,.35);line-height:1.1}
.data-strip span{font-size:13.5px;color:var(--text-3)}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px;margin:0 auto}
.faq{display:grid;gap:14px}
.faq-item{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.018));transition:border-color .2s ease}
.faq-item.is-open{border-color:var(--line-accent)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:20px 24px;font-size:16.5px;font-weight:600;color:var(--text);
}
.faq-q .idx{font-family:var(--font-num);font-size:13px;color:var(--accent);letter-spacing:.06em;flex:0 0 auto}
.faq-q .arrow{margin-left:auto;flex:0 0 auto;width:9px;height:9px;border-right:1.8px solid var(--text-3);border-bottom:1.8px solid var(--text-3);transform:rotate(45deg) translate(-2px,-2px);transition:transform .24s ease}
.faq-item.is-open .faq-q .arrow{transform:rotate(225deg) translate(-1px,-1px);border-color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a-inner{padding:0 24px 22px 62px;font-size:15px;line-height:1.85;color:var(--text-2)}
.faq-q:hover{color:#fff}

/* ============ 表单 ============ */
.form-card{padding:32px;border-radius:var(--r-lg)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:14px;color:var(--text-2)}
.field input,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text);
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.field textarea{min-height:112px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);background:rgba(51,225,196,.05);
  box-shadow:0 0 0 3px rgba(51,225,196,.18);
}
.field.has-error input,.field.has-error textarea{border-color:var(--warm);box-shadow:0 0 0 3px rgba(255,123,147,.16)}
.field .msg{font-size:13px;color:var(--warm)}
.form-success{
  display:flex;gap:12px;align-items:flex-start;padding:16px 18px;border-radius:var(--r-sm);
  border:1px solid var(--line-accent);background:rgba(51,225,196,.08);color:var(--text-2);
  font-size:14.5px;margin-bottom:20px;
}
.form-success b{color:var(--accent)}
.form-tip{font-size:13px;color:var(--text-3);margin-top:14px}

/* ============ 结尾 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;padding:64px 0;margin-top:8px;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background-image:linear-gradient(120deg,rgba(59,109,246,.16),rgba(51,225,196,.1) 58%,rgba(255,123,147,.1));
}
.cta-band-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px}
.cta-band h2{margin-bottom:10px}
.cta-band p{font-size:15.5px;color:var(--text-2);max-width:44em}
.cta-band-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:26px;bottom:26px;z-index:50;display:flex;flex-direction:column;align-items:flex-end;gap:10px;
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta .mini{
  display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:var(--text);border:1px solid var(--line-2);
  background:rgba(10,16,32,.9);backdrop-filter:blur(10px);box-shadow:var(--sh-1);
}
.float-cta .mini:hover{border-color:var(--line-accent);color:var(--accent)}
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:52;display:none;gap:12px;padding:12px 16px;
  background:rgba(6,9,18,.95);border-top:1px solid var(--line-2);backdrop-filter:blur(12px);
}
.mobile-bar .btn{flex:1 1 0}
.mobile-bar .btn-ghost{flex:0 0 auto;padding:13px 16px}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-1);border-top:1px solid transparent;border-image:linear-gradient(90deg,transparent,rgba(51,225,196,.45),rgba(59,109,246,.4),transparent) 1;padding-top:72px;margin-top:0}
.footer-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px}
.footer-brand p{font-size:14px;line-height:1.9;color:var(--text-3);margin-top:16px;max-width:30em}
.footer-title{font-size:13px;letter-spacing:.16em;color:var(--text);font-weight:600;margin-bottom:16px}
.footer-list{display:grid;gap:10px}
.footer-link{font-size:14px;color:var(--text-2);border-bottom:0}
.footer-link:hover{color:var(--accent)}
.footer-contact ul{display:grid;gap:10px;font-size:14px;color:var(--text-3)}
.footer-contact b{color:var(--text-2);font-weight:600}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 0 28px;border-top:1px solid var(--line);font-size:14px;color:var(--text-3);
}
.footer-bottom .links{display:flex;flex-wrap:wrap;align-items:center;gap:18px}
.to-top{
  padding:8px 16px;border-radius:var(--r-pill);border:1px solid var(--line);
  color:var(--text-2);font-size:13.5px;background:rgba(255,255,255,.04);
  transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}
.to-top:hover{color:var(--accent);border-color:var(--line-accent);background:rgba(51,225,196,.08)}

.skeleton{
  border-radius:var(--r-md);
  background-image:linear-gradient(100deg,rgba(255,255,255,.04) 20%,rgba(51,225,196,.1) 42%,rgba(255,255,255,.04) 64%);
  background-size:220% 100%;animation:shine 1.6s linear infinite;min-height:120px;
}
@keyframes shine{0%{background-position:120% 0}100%{background-position:-120% 0}}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}
@media (max-width:1200px){
  .footer-main{grid-template-columns:1fr 1fr;gap:36px}
  .page-hero .hero-inner{grid-template-columns:1fr;gap:36px}
  .check-grid{grid-template-columns:1fr;gap:32px}
}
@media (max-width:1024px){
  .section{padding:80px 0}
  .data-strip{grid-template-columns:1fr 1fr;gap:24px}
  .data-strip div:nth-child(3){border-left:0;padding-left:0}
}
@media (max-width:900px){
  .header-inner{padding:0 20px;gap:14px}
  .nav-main{
    position:fixed;top:var(--header-h);right:0;bottom:0;width:min(86vw,360px);
    flex-direction:column;align-items:stretch;gap:6px;margin:0;padding:24px 20px 40px;
    background:linear-gradient(180deg,rgba(10,16,32,.99),rgba(5,7,13,.99));
    border-left:1px solid var(--line-2);box-shadow:-18px 0 44px rgba(0,0,0,.55);
    transform:translateX(102%);transition:transform .3s ease;overflow-y:auto;z-index:68;
  }
  .nav-main.is-open{transform:translateX(0)}
  .nav-link{padding:14px 14px;font-size:16px;border-radius:var(--r-sm)}
  .nav-link.is-active::after{display:none}
  .nav-toggle{display:block}
  .dropdown{display:none}
  .nav-extra{display:block;margin-top:18px;padding-top:20px;border-top:1px solid var(--line)}
  .nav-extra .btn{width:100%;margin-bottom:12px}
  .nav-extra p{font-size:13.5px;color:var(--text-3);line-height:1.9}
  .section-head{margin-bottom:36px}
  .tl-item{padding-left:64px}
  .tl-item::before{left:16px}
  .tl-dot{width:34px;height:34px;font-size:13px;box-shadow:0 0 0 5px rgba(51,225,196,.09),0 8px 20px rgba(51,225,196,.3)}
  .stage-tabs{position:static;margin-top:24px}
  .stage-tabs-inner{border-radius:var(--r-md)}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:60px 0}
  .page-hero{padding:48px 0 62px}
  .check-list{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .cta-mid-inner{padding:24px 22px;flex-direction:column;align-items:flex-start}
  .cta-band{padding:52px 0}
  .tl-card{padding:22px 20px}
  .tl-item{padding-left:56px;padding-bottom:28px}
  .tl-item::before{left:13px;top:40px}
  .tl-dot{width:30px;height:30px;font-size:12px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:560px){
  h1{font-size:clamp(26px,7.6vw,34px)}
  .hero-actions .btn{width:100%}
  .hero-stats{gap:8px;font-size:13px}
  .data-strip{grid-template-columns:1fr;padding:22px}
  .data-strip div{border-left:0;padding-left:0}
  .float-cta{display:none}
  .mobile-bar{display:flex}
  .site-footer{padding-bottom:84px}
  .faq-a-inner{padding:0 20px 20px 20px}
  .faq-q{padding:18px 18px;font-size:15.5px}
}
@media (max-width:400px){
  .logo-text{font-size:15.5px}
  .container{padding:0 16px}
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root{
  --bg-0:#05070D;
  --bg-1:#0A1020;
  --bg-2:#101A31;
  --brand:#3B6DF6;
  --accent:#33E1C4;
  --warm:#FF7B93;
  --text:#E8EEFF;
  --text-2:#A9B6D3;
  --text-3:#6E7D9C;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(51,225,196,.35);
  --glass:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 8px 22px rgba(0,0,0,.28);
  --sh-2:0 18px 40px rgba(0,0,0,.45);
  --sh-glow:0 12px 40px rgba(51,225,196,.20);
  --container:1240px;
  --pad:32px;
  --gap:24px;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg-0);
  overflow-x:hidden;
  position:relative;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(680px 460px at 6% -6%, rgba(59,109,246,.12), transparent 72%),
    radial-gradient(760px 520px at 96% 12%, rgba(51,225,196,.09), transparent 72%),
    radial-gradient(680px 620px at 62% 104%, rgba(255,123,147,.05), transparent 74%);
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.045;
  background-image:
    linear-gradient(rgba(255,255,255,.55) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.55) 1px, transparent 1px);
  background-size:64px 64px;
}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:rgba(51,225,196,.28);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.container{max-width:var(--container);margin:0 auto;padding:0 var(--pad);position:relative;z-index:1}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:90;
  border-bottom:1px solid transparent;
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.site-header.is-scrolled{
  background:rgba(7,11,22,.88);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom-color:var(--line);
  box-shadow:0 12px 34px rgba(0,0,0,.48);
}
.header-inner{
  max-width:var(--container);margin:0 auto;height:72px;padding:0 var(--pad);
  display:flex;align-items:center;gap:16px;
}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--text);font-weight:800;font-size:17px;letter-spacing:.01em;white-space:nowrap;
  border-bottom:0;
}
.logo:hover{color:#fff}
.logo-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(59,109,246,.38),rgba(51,225,196,.28));
  border:1px solid var(--line-2);color:var(--accent);flex:0 0 auto;
}
.nav-main{display:flex;align-items:center;gap:2px;margin-left:10px}
.nav-link{
  position:relative;padding:9px 12px;border-radius:var(--r-pill);
  font-size:14.5px;color:var(--text-2);white-space:nowrap;border-bottom:0;
  transition:color .18s ease,background .18s ease,box-shadow .18s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{
  color:var(--text);background:rgba(51,225,196,.10);
  box-shadow:inset 0 0 0 1px rgba(51,225,196,.30);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.dropdown{position:relative}
.dropdown-toggle{
  display:inline-flex;align-items:center;gap:7px;height:38px;padding:0 15px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text-2);
  font-size:14px;cursor:pointer;transition:all .18s ease-out;
}
.dropdown-toggle:hover{color:var(--text);border-color:var(--line-2);background:rgba(255,255,255,.07)}
.caret{width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translate(-1px,-1px);transition:transform .22s ease}
.dropdown.open .caret{transform:rotate(225deg) translate(-1px,-1px)}
.dropdown-menu{
  position:absolute;right:0;top:calc(100% + 10px);min-width:190px;padding:8px;
  border-radius:var(--r-md);background:rgba(11,18,36,.97);
  border:1px solid var(--line);box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
  backdrop-filter:blur(14px);
}
.dropdown.open .dropdown-menu{opacity:1;visibility:visible;transform:none}
.dropdown-menu a{display:block;padding:9px 12px;border-radius:10px;color:var(--text-2);font-size:14px;border-bottom:0}
.dropdown-menu a:hover{background:rgba(51,225,196,.10);color:var(--text)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);cursor:pointer;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:1.6px;background:var(--text);border-radius:2px;
  transform:translateX(-50%);transition:.22s ease;
}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none}

/* ============ 移动端抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,6,13,.72);z-index:95;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s;
  backdrop-filter:blur(3px);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(360px,86vw);z-index:96;
  background:linear-gradient(180deg,#0A1020,#070B16);
  border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .3s ease;
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
}
.drawer.is-open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--text-2);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-close:hover{color:var(--accent);border-color:var(--line-2)}
.drawer-nav{display:flex;flex-direction:column;gap:6px;padding:20px 0}
.drawer-nav a{
  display:block;padding:13px 14px;border-radius:12px;color:var(--text-2);font-size:15.5px;
  border:1px solid transparent;border-bottom:0;
}
.drawer-nav a:hover{background:rgba(255,255,255,.05);color:var(--text)}
.drawer-nav a.is-active{background:rgba(51,225,196,.10);color:var(--text);border-color:rgba(51,225,196,.3)}
.drawer-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:12px}
.drawer-foot p{font-size:13.5px;color:var(--text-3);line-height:1.75}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .18s ease-out,box-shadow .18s ease-out,filter .18s ease-out,background .18s ease-out,border-color .18s ease-out,color .18s ease-out;
  border-bottom:1px solid transparent;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--accent));
  color:#04121B;
  box-shadow:0 10px 30px rgba(51,225,196,.22);
  border-bottom-color:transparent;
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 16px 42px rgba(51,225,196,.34);color:#04121B}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 10px rgba(0,0,0,.32)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--line-2);color:var(--accent);transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:var(--r-pill)}
.btn-block{width:100%;display:inline-flex}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none!important;filter:none!important}
.btn-text{
  display:inline-flex;align-items:center;gap:7px;font-size:15px;font-weight:600;color:var(--accent);
  border-bottom:1px solid rgba(51,225,196,.35);padding-bottom:2px;background:none;border-top:0;border-left:0;border-right:0;cursor:pointer;
}
.btn-text:hover{border-bottom-color:rgba(51,225,196,.9);color:#6CF3DC}
.btn-text span{transition:transform .18s ease-out}
.btn-text:hover span{transform:translateX(4px)}

/* ============ 页面首屏 ============ */
.page-hero{position:relative;padding:152px 0 72px;overflow:hidden}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.42;z-index:0;
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:0;
  background:
    linear-gradient(180deg,rgba(5,7,13,.80) 0%,rgba(5,7,13,.88) 55%,rgba(5,7,13,.98) 100%),
    radial-gradient(720px 420px at 12% 10%, rgba(59,109,246,.24), transparent 70%);
}
.hero-inner{max-width:880px}
.breadcrumb{
  display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);
  letter-spacing:.04em;margin-bottom:22px;position:relative;z-index:2;
}
.breadcrumb a{color:var(--text-3);border-bottom:0}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:rgba(255,255,255,.18)}
.breadcrumb .current{color:var(--text-2)}
.eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:.16em;color:var(--accent);
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(51,225,196,.08);border:1px solid rgba(51,225,196,.24);
  margin-bottom:20px;
}
.page-hero h1{
  font-size:clamp(30px,4.6vw,56px);font-weight:800;line-height:1.15;letter-spacing:-.02em;
  margin-bottom:20px;
}
.page-hero .hero-sub{
  font-size:clamp(15.5px,1.6vw,18px);color:var(--text-2);line-height:1.8;max-width:720px;
}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:32px}
.hero-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:36px;
  font-size:14px;color:var(--text-3);font-variant-numeric:tabular-nums;
}
.hero-meta b{color:var(--accent);font-size:19px;font-weight:700;margin-right:4px;font-family:"Inter",system-ui,sans-serif}
.hero-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.18)}

/* ============ 通用板块 ============ */
.section{padding:96px 0;position:relative;z-index:1}
.section.tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{
  font-size:clamp(24px,3vw,38px);font-weight:700;line-height:1.25;letter-spacing:-.01em;margin-bottom:14px;
}
.section-head p{font-size:16.5px;color:var(--text-2);line-height:1.85}
.section-head .eyebrow{margin-bottom:16px}

/* ============ 概览数据条 ============ */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);
  padding:28px 32px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
}
.stat-item{text-align:left;padding-right:16px;border-right:1px solid var(--line)}
.stat-item:last-child{border-right:0;padding-right:0}
.stat-num{
  font-family:"Inter","PingFang SC",system-ui,sans-serif;
  font-size:clamp(30px,3.4vw,44px);font-weight:800;line-height:1.1;
  color:var(--accent);font-variant-numeric:tabular-nums;
  text-shadow:0 0 26px rgba(51,225,196,.35);
}
.stat-num small{font-size:15px;font-weight:600;margin-left:4px;color:var(--text-2)}
.stat-label{font-size:13.5px;color:var(--text-3);margin-top:8px;letter-spacing:.04em}

/* ============ 权益对照表 ============ */
.compare-wrap{
  border-radius:var(--r-lg);border:1px solid var(--line);overflow:hidden;
  background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-2);
}
.table-scroll{overflow-x:auto;overflow-y:auto;max-height:640px}
table.compare{width:100%;min-width:900px;border-collapse:separate;border-spacing:0}
table.compare thead th{
  position:sticky;top:0;z-index:3;
  background:#0C142A;
  padding:18px 22px;text-align:left;
  font-size:14px;font-weight:600;color:var(--text-2);letter-spacing:.04em;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
table.compare thead th:first-child{color:var(--text-3)}
table.compare thead th .tier{display:block;color:var(--text);font-size:16px;font-weight:700;letter-spacing:0;margin-bottom:2px}
table.compare thead th .tier-tip{display:block;font-size:12.5px;color:var(--text-3);font-weight:400}
table.compare tbody td{
  padding:16px 22px;font-size:14.5px;color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.05);
  vertical-align:top;
}
table.compare tbody tr:nth-child(even){background:rgba(255,255,255,.018)}
table.compare tbody tr:hover{background:rgba(51,225,196,.05)}
table.compare tbody td:first-child{color:var(--text);font-weight:600;white-space:nowrap}
table.compare .yes{color:var(--accent);font-weight:600}
table.compare .no{color:var(--text-3)}
.tier-col-hi{background:rgba(59,109,246,.07)}
table.compare thead th.tier-col-hi{background:#111C3A}
.table-note{
  padding:16px 22px;font-size:13.5px;color:var(--text-3);border-top:1px solid var(--line);
  background:rgba(255,255,255,.02);
}

.compare-figure{margin-top:32px;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1)}
.compare-figure img{width:100%;aspect-ratio:16/7;object-fit:cover}
.compare-figure figcaption{font-size:13.5px;color:var(--text-3);padding:14px 20px;background:rgba(255,255,255,.02);border-top:1px solid var(--line)}

/* ============ 规格卡 ============ */
.spec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);margin-top:56px}
.spec-card{
  position:relative;padding:30px 28px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
  display:flex;flex-direction:column;
}
.spec-card:hover{transform:translateY(-2px);border-color:rgba(51,225,196,.30);box-shadow:var(--sh-2),var(--sh-glow)}
.spec-card.is-feature{transform:translateY(-8px);border-color:rgba(51,225,196,.42);box-shadow:var(--sh-2),0 20px 50px rgba(51,225,196,.16)}
.spec-card.is-feature:hover{transform:translateY(-10px)}
.spec-badge{
  position:absolute;top:-12px;left:28px;
  font-size:12.5px;letter-spacing:.08em;padding:5px 13px;border-radius:var(--r-pill);
  background:linear-gradient(135deg,var(--brand),var(--accent));color:#04121B;font-weight:700;
}
.spec-tag{font-size:12.5px;letter-spacing:.14em;color:var(--accent);margin-bottom:12px}
.spec-card h3{font-size:21px;font-weight:700;line-height:1.4;margin-bottom:10px}
.spec-card .spec-desc{font-size:14.5px;color:var(--text-2);line-height:1.8;margin-bottom:20px}
.spec-list{display:flex;flex-direction:column;gap:11px;margin-bottom:24px}
.spec-list li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7}
.spec-list li .mk{flex:0 0 auto;width:17px;height:17px;border-radius:50%;display:grid;place-items:center;font-size:11px;line-height:1;margin-top:5px}
.spec-list li .mk.ok{background:rgba(51,225,196,.16);color:var(--accent);border:1px solid rgba(51,225,196,.4)}
.spec-list li .mk.off{background:rgba(255,255,255,.05);color:var(--text-3);border:1px solid var(--line)}
.spec-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}

/* ============ 中部 CTA ============ */
.cta-band{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  padding:48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  background:linear-gradient(120deg,rgba(59,109,246,.20),rgba(51,225,196,.12));
  border:1px solid var(--line-2);
  box-shadow:var(--sh-2);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-3.webp);
  background-size:cover;background-position:center;opacity:.16;z-index:0;
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;margin-bottom:10px}
.cta-band p{font-size:15.5px;color:var(--text-2);max-width:560px}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px}
.faq-item{
  border-radius:var(--r-md);border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.045),rgba(255,255,255,.015));
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(51,225,196,.24)}
.faq-item.is-open{border-color:rgba(51,225,196,.35);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:20px 22px;background:none;border:0;cursor:pointer;
  color:var(--text);font-size:16.5px;font-weight:600;line-height:1.6;
}
.faq-q .num{
  flex:0 0 auto;font-family:"Inter",system-ui,sans-serif;font-size:13px;color:var(--accent);
  width:28px;letter-spacing:.02em;
}
.faq-q .arrow{
  margin-left:auto;flex:0 0 auto;width:20px;height:20px;position:relative;transition:transform .24s ease;
}
.faq-q .arrow::before,.faq-q .arrow::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--text-3);border-radius:2px;transition:background .2s ease;
}
.faq-q .arrow::before{width:11px;height:1.5px;transform:translate(-50%,-50%)}
.faq-q .arrow::after{width:1.5px;height:11px;transform:translate(-50%,-50%)}
.faq-item.is-open .faq-q .arrow{transform:rotate(135deg)}
.faq-item.is-open .faq-q .arrow::before,.faq-item.is-open .faq-q .arrow::after{background:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a-inner{padding:0 22px 22px 66px;font-size:15px;color:var(--text-2);line-height:1.85}

/* ============ 要点小结 ============ */
.recap{
  display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:56px;
  padding:32px;border-radius:var(--r-lg);border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.recap-item{display:flex;gap:14px}
.recap-item .ic{
  flex:0 0 auto;width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:rgba(51,225,196,.10);border:1px solid rgba(51,225,196,.28);color:var(--accent);font-size:15px;font-weight:700;
  font-family:"Inter",system-ui,sans-serif;
}
.recap-item h3{font-size:16px;font-weight:600;margin-bottom:6px}
.recap-item p{font-size:14.5px;color:var(--text-2);line-height:1.8}

/* ============ 表单 ============ */
.form-card{
  margin-top:32px;padding:32px;border-radius:var(--r-lg);border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-1);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:14px;color:var(--text-2)}
.field input,.field textarea{
  height:48px;padding:0 16px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--text);font-size:15px;font-family:inherit;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:120px;padding:14px 16px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(51,225,196,.16);
}
.field .hint{font-size:13px;color:var(--text-3)}
.field.has-error input,.field.has-error textarea{border-color:var(--warm);box-shadow:0 0 0 3px rgba(255,123,147,.14)}
.field .err{font-size:13px;color:var(--warm);display:none}
.field.has-error .err{display:block}
.field.is-ok input{border-color:var(--accent)}
.form-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:4px}
.skeleton{
  height:16px;border-radius:8px;
  background:linear-gradient(90deg,rgba(255,255,255,.05),rgba(51,225,196,.14),rgba(255,255,255,.05));
  background-size:220% 100%;animation:sweep 1.6s linear infinite;
}
@keyframes sweep{0%{background-position:120% 0}100%{background-position:-120% 0}}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;z-index:1;margin-top:40px;
  background:#060910;
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(51,225,196,.45),transparent);
}
.footer-main{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding:64px 0 44px;
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-3);line-height:1.85;max-width:340px}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.04em}
.footer-list{display:flex;flex-direction:column;gap:11px}
.footer-link{font-size:14px;color:var(--text-3);border-bottom:0}
.footer-link:hover{color:var(--accent)}
.footer-contact ul{display:flex;flex-direction:column;gap:11px}
.footer-contact li{font-size:14px;color:var(--text-3);line-height:1.75}
.footer-contact b{color:var(--text-2);font-weight:600}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid var(--line);
  font-size:13.5px;color:var(--text-3);
}
.footer-bottom .links{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.to-top{
  height:36px;padding:0 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text-2);
  font-size:13.5px;cursor:pointer;transition:all .18s ease-out;
}
.to-top:hover{color:var(--accent);border-color:var(--line-2);transform:translateY(-1px)}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .nav-main{gap:0}
  .nav-link{padding:8px 10px;font-size:14px}
}
@media (max-width:1024px){
  :root{--pad:24px}
  .section{padding:76px 0}
  .spec-grid{grid-template-columns:1fr 1fr}
  .spec-card.is-feature{transform:none}
  .spec-card.is-feature:hover{transform:translateY(-2px)}
  .stat-bar{grid-template-columns:repeat(2,1fr);row-gap:24px}
  .stat-item:nth-child(2){border-right:0;padding-right:0}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:900px){
  .nav-main{display:none}
  .dropdown{display:none}
  .header-actions .btn-sm{display:none}
  .nav-toggle{display:block}
  .page-hero{padding:124px 0 56px}
  .table-scroll{max-height:none}
}
@media (max-width:768px){
  :root{--pad:20px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .spec-grid{grid-template-columns:1fr}
  .recap{grid-template-columns:1fr;padding:24px}
  .form-row{grid-template-columns:1fr}
  .cta-band{padding:32px 24px}
  .footer-main{grid-template-columns:1fr;gap:28px;padding:48px 0 32px}
  .stat-bar{padding:22px}
  .stat-item{border-right:0;padding-right:0}
}
@media (max-width:560px){
  .page-hero h1{font-size:clamp(27px,8vw,36px)}
  .hero-actions{gap:14px}
  .hero-actions .btn{width:100%}
  .btn-block-mobile{width:100%}
  .compare-figure img{aspect-ratio:16/9}
  .faq-a-inner{padding-left:22px}
  .faq-q{gap:12px;font-size:15.5px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}
@media (max-width:900px){
  .table-scroll,.drawer,.dropdown-menu,.stat-bar,.spec-card,.form-card,.recap{
    backdrop-filter:none!important;-webkit-backdrop-filter:none!important;
  }
  .stat-bar,.spec-card,.form-card,.recap{background:linear-gradient(160deg,rgba(20,29,52,.92),rgba(13,20,38,.92))}
  .dropdown-menu{background:#0B1224}
}

/* roulang page: category4 */
:root{
  --bg-0:#05070D;
  --bg-1:#0A1020;
  --bg-2:#101A31;
  --brand:#3B6DF6;
  --brand-deep:#244EDA;
  --accent:#33E1C4;
  --warm:#FF7B93;
  --text:#E8EEFF;
  --text-2:#A9B6D3;
  --text-3:#6E7D9C;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --line-accent:rgba(51,225,196,.35);
  --glass:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(0,0,0,.32);
  --sh-2:0 18px 40px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(51,225,196,.22),0 16px 44px rgba(59,109,246,.30);
  --ease:180ms ease-out;
  --maxw:1240px;
  --header-h:72px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:104px}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg-0);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:var(--accent);text-decoration:none;transition:color var(--ease),opacity var(--ease)}
a:hover{color:#7CF0DC}
button{font-family:inherit;font-size:inherit;color:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(900px 620px at 6% -8%,rgba(59,109,246,.16),transparent 62%),
    radial-gradient(820px 560px at 98% 10%,rgba(51,225,196,.10),transparent 60%),
    radial-gradient(900px 700px at 50% 112%,rgba(255,123,147,.055),transparent 66%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.55;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px;position:relative;z-index:1}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:900;
  border-bottom:1px solid transparent;
  background:linear-gradient(180deg,rgba(5,7,13,.74),rgba(5,7,13,.22));
  backdrop-filter:blur(10px) saturate(130%);
  -webkit-backdrop-filter:blur(10px) saturate(130%);
  transition:background 260ms ease,box-shadow 260ms ease,border-color 260ms ease;
}
.site-header.is-scrolled{
  background:rgba(6,9,18,.93);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-2);
}
.header-inner{
  max-width:var(--maxw);margin:0 auto;padding:0 32px;height:var(--header-h);
  display:flex;align-items:center;gap:22px;
}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700}
.logo:hover{color:var(--text)}
.logo-mark{
  width:32px;height:32px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  color:#0A1020;background:linear-gradient(140deg,var(--accent),var(--brand));
  box-shadow:0 6px 18px rgba(59,109,246,.42);
  flex:none;
}
.logo-text{font-size:17px;letter-spacing:.02em;white-space:nowrap}

.nav-main{display:flex;align-items:center;gap:6px;margin-left:10px}
.nav-link{
  position:relative;color:var(--text-2);font-size:14.5px;padding:8px 12px;border-radius:var(--r-pill);
  transition:color var(--ease),background var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--accent);opacity:0;transform:scaleX(.5);transform-origin:center;
  transition:opacity var(--ease),transform var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-link.is-active{color:var(--text);background:rgba(51,225,196,.09)}
.nav-link.is-active::after{opacity:1;transform:scaleX(1)}

.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.dropdown{position:relative}
.dropdown-toggle{
  display:inline-flex;align-items:center;gap:7px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text-2);
  padding:9px 14px;border-radius:var(--r-pill);font-size:14px;
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.dropdown-toggle:hover{color:var(--text);border-color:var(--line-accent);background:rgba(255,255,255,.07)}
.caret{width:7px;height:7px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg) translateY(-1px);transition:transform var(--ease)}
.dropdown.is-open .caret{transform:rotate(-135deg) translateY(-1px)}
.dropdown-menu{
  position:absolute;top:calc(100% + 10px);right:0;min-width:184px;padding:8px;
  border-radius:var(--r-md);border:1px solid var(--line);
  background:rgba(12,18,34,.96);backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
}
.dropdown:hover .dropdown-menu,.dropdown.is-open .dropdown-menu{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown-menu a{
  display:block;padding:9px 12px;border-radius:10px;color:var(--text-2);font-size:14px;
  transition:background var(--ease),color var(--ease);
}
.dropdown-menu a:hover{background:rgba(51,225,196,.10);color:var(--text)}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  align-items:center;justify-content:center;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:background var(--ease)}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text);
  transition:transform var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
body.nav-open .nav-toggle span{background:transparent}
body.nav-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
body.nav-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;
  transition:transform var(--ease),box-shadow var(--ease),filter var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(120deg,var(--brand),var(--accent));
  color:#04121A;box-shadow:0 12px 30px rgba(59,109,246,.34);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 16px 40px rgba(51,225,196,.34);color:#04121A}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 8px rgba(0,0,0,.35)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{transform:translateY(-1px);border-color:var(--line-accent);color:var(--accent);background:rgba(51,225,196,.07)}
.btn-ghost:active{transform:translateY(0)}
.btn-glass{
  background:var(--glass);border-color:var(--line);color:var(--text);
  backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
}
.btn-glass:hover{transform:translateY(-1px);border-color:var(--line-accent);color:var(--accent)}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;background:none;border:0;padding:4px 0;
  color:var(--accent);font-size:15px;font-weight:600;
}
.btn-text .arrow{transition:transform var(--ease)}
.btn-text:hover .arrow{transform:translateX(4px)}
.btn-text:hover{color:#7CF0DC}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  font-size:13px;color:var(--text-3);letter-spacing:.04em;
}
.breadcrumb a{color:var(--text-2);border-bottom:1px solid rgba(51,225,196,.25);padding-bottom:1px}
.breadcrumb a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.breadcrumb .sep{width:1px;height:11px;background:var(--line-strong);display:inline-block}
.breadcrumb .current{color:var(--text-3)}

/* ---------- 页面首屏 ---------- */
.page-hero{
  position:relative;padding:calc(var(--header-h) + 74px) 0 78px;
  overflow:hidden;border-bottom:1px solid var(--line);
}
.page-hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.38;
}
.page-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(5,7,13,.94) 12%,rgba(5,7,13,.72) 52%,rgba(5,7,13,.92) 100%),
             linear-gradient(180deg,rgba(5,7,13,.35),rgba(5,7,13,.96));
}
.page-hero-inner{position:relative;z-index:1}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.16em;color:var(--accent);text-transform:none;
  padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid var(--line-accent);background:rgba(51,225,196,.07);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
.page-hero h1{
  margin:22px 0 0;max-width:900px;
  font-size:clamp(30px,4.6vw,56px);font-weight:800;line-height:1.15;letter-spacing:-.02em;
}
.hero-lead{
  margin-top:20px;max-width:760px;font-size:clamp(16px,1.5vw,18px);line-height:1.85;color:var(--text-2);
}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:32px}
.trust-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:36px;font-size:14px;color:var(--text-3);letter-spacing:.04em;
}
.trust-bar b{
  color:var(--text);font-weight:700;font-variant-numeric:tabular-nums;font-family:"Inter",ui-monospace,monospace;
}
.trust-bar .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);opacity:.6}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;position:relative;z-index:1}
.section-alt{background:linear-gradient(180deg,rgba(10,16,32,.72),rgba(10,16,32,.24));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{
  margin-top:16px;font-size:clamp(24px,3vw,38px);font-weight:700;line-height:1.25;letter-spacing:-.01em;
}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16.5px}
.section-head.is-center{margin-left:auto;margin-right:auto;text-align:center}

.lead-panel{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px 34px;box-shadow:var(--sh-2);
  backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
  display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:36px;align-items:center;
}
.lead-panel p{color:var(--text-2);font-size:16.5px}
.lead-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:6px 13px;border-radius:var(--r-pill);
  font-size:13px;color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.tag-accent{color:var(--accent);border-color:var(--line-accent);background:rgba(51,225,196,.08)}
.check-list li{
  position:relative;padding-left:28px;margin-bottom:12px;color:var(--text-2);font-size:15.5px;line-height:1.8;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:14px;height:8px;
  border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);
  transform:rotate(-45deg);
}

/* ---------- 图文交替行（本页主结构） ---------- */
.alt-rows{margin-top:12px}
.alt-row{
  display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,1fr);
  gap:56px;align-items:center;padding:44px 0;
}
.alt-row + .alt-row{border-top:1px solid var(--line)}
.alt-row.is-reversed .alt-media{order:2}
.alt-media{position:relative}
.media-frame{
  position:relative;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--line);background:linear-gradient(110deg,#0C1426 10%,#142042 30%,#0C1426 50%);
  box-shadow:var(--sh-glow);
  aspect-ratio:16/9;
}
.media-frame img{
  width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity 420ms ease;
}
.media-frame img.is-loaded{opacity:1}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(5,7,13,.08),rgba(5,7,13,.55));
}
.media-num{
  position:absolute;left:18px;top:18px;z-index:2;
  font-family:"Inter",ui-monospace,monospace;font-variant-numeric:tabular-nums;
  font-size:13px;letter-spacing:.12em;color:var(--accent);
  padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(5,7,13,.72);border:1px solid var(--line-accent);
}
.alt-body h3{font-size:clamp(19px,2vw,23px);font-weight:600;line-height:1.4}
.alt-body .alt-desc{margin-top:14px;color:var(--text-2);font-size:16px}
.alt-body .check-list{margin-top:20px}
.alt-body .btn-text{margin-top:20px}

/* ---------- 数据条 ---------- */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;
  padding:36px 34px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-2);
}
.stat{padding-left:20px;border-left:1px solid var(--line)}
.stat:first-child{padding-left:0;border-left:0}
.stat-num{
  font-family:"Inter",ui-monospace,monospace;font-variant-numeric:tabular-nums;
  font-size:clamp(34px,4vw,52px);font-weight:800;line-height:1;letter-spacing:-.02em;
  color:var(--accent);text-shadow:0 0 24px rgba(51,225,196,.32);
}
.stat-num small{font-size:.44em;font-weight:600;margin-left:4px;color:var(--text-2);text-shadow:none}
.stat-label{margin-top:12px;font-size:14px;color:var(--text-3);letter-spacing:.04em}

/* ---------- CTA 带 ---------- */
.cta-band{padding:0 0 96px}
.cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  padding:40px 42px;border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(59,109,246,.18),rgba(51,225,196,.10));
  border:1px solid var(--line-accent);
  box-shadow:var(--sh-glow);
  backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
}
.cta-inner h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;max-width:620px}
.cta-inner p{margin-top:12px;color:var(--text-2);font-size:15.5px;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:960px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item:hover{border-color:rgba(51,225,196,.24)}
.faq-item.is-open{border-color:var(--line-accent);box-shadow:0 12px 32px rgba(51,225,196,.08)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  background:none;border:0;padding:20px 22px;
}
.faq-q .faq-index{
  font-family:"Inter",ui-monospace,monospace;font-variant-numeric:tabular-nums;
  font-size:13px;color:var(--text-3);letter-spacing:.08em;flex:none;
}
.faq-q .faq-text{flex:1;font-size:16.5px;font-weight:600;line-height:1.55;color:var(--text)}
.faq-icon{
  position:relative;width:16px;height:16px;flex:none;
  border-radius:50%;border:1px solid var(--line-accent);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--accent);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform 240ms ease,opacity 240ms ease;
}
.faq-icon::before{width:8px;height:1.6px}
.faq-icon::after{width:1.6px;height:8px}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms ease}
.faq-a-inner{padding:0 22px 22px 60px;color:var(--text-2);font-size:15px;line-height:1.85}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:850;
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:var(--r-pill);
  background:rgba(10,16,32,.92);border:1px solid var(--line);
  box-shadow:var(--sh-2);backdrop-filter:blur(14px);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity 260ms ease,transform 260ms ease,visibility 260ms ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta .btn{padding:11px 20px;font-size:14px}
.float-top{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);
  background:rgba(255,255,255,.05);color:var(--text-2);display:inline-flex;align-items:center;justify-content:center;
  transition:color var(--ease),border-color var(--ease);
}
.float-top:hover{color:var(--accent);border-color:var(--line-accent)}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;z-index:1;margin-top:0;
  background:var(--bg-0);
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,transparent,rgba(51,225,196,.45),transparent) 1;
}
.footer-main{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding:72px 0 48px;
}
.footer-brand p{margin-top:16px;color:var(--text-3);font-size:14px;line-height:1.85;max-width:340px}
.footer-title{font-size:13px;letter-spacing:.12em;color:var(--text-3);margin-bottom:16px}
.footer-list li{margin-bottom:10px}
.footer-link{color:var(--text-2);font-size:14px}
.footer-link:hover{color:var(--accent)}
.footer-contact ul li{color:var(--text-3);font-size:14px;line-height:1.9;margin-bottom:8px}
.footer-contact ul li b{color:var(--text-2);font-weight:600}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 0 34px;border-top:1px solid var(--line);
  font-size:14px;color:var(--text-3);
}
.footer-bottom .links{display:flex;align-items:center;gap:18px}
.to-top{
  background:none;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:8px 16px;font-size:13px;color:var(--text-2);
  transition:color var(--ease),border-color var(--ease),transform var(--ease);
}
.to-top:hover{color:var(--accent);border-color:var(--line-accent);transform:translateY(-1px)}

/* ---------- 移动端抽屉 ---------- */
.mobile-nav{
  position:fixed;inset:0;z-index:1000;display:none;
  background:rgba(5,7,13,.72);backdrop-filter:blur(8px);
  opacity:0;visibility:hidden;transition:opacity 300ms ease,visibility 300ms ease;
}
.mobile-nav.is-open{opacity:1;visibility:visible}
.mobile-panel{
  position:absolute;top:0;right:0;width:min(340px,86vw);height:100%;
  background:linear-gradient(180deg,rgba(12,18,34,.99),rgba(6,10,20,.99));
  border-left:1px solid var(--line);
  padding:22px 22px 32px;overflow-y:auto;
  transform:translateX(100%);transition:transform 300ms ease;
}
.mobile-nav.is-open .mobile-panel{transform:translateX(0)}
.mobile-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.mobile-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:var(--text);display:inline-flex;align-items:center;justify-content:center;
}
.mobile-group{margin-bottom:24px}
.mobile-group .footer-title{margin-bottom:12px}
.mobile-group a{
  display:block;padding:12px 14px;border-radius:12px;color:var(--text-2);font-size:15px;
  transition:background var(--ease),color var(--ease);
}
.mobile-group a:hover,.mobile-group a.is-active{background:rgba(51,225,196,.10);color:var(--text)}
.mobile-meta{margin-top:28px;padding-top:22px;border-top:1px solid var(--line);color:var(--text-3);font-size:13px;line-height:1.9}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .alt-row{gap:40px}
  .footer-main{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .footer-contact{grid-column:1 / -1}
}
@media (max-width:1024px){
  .nav-main{gap:2px}
  .nav-link{font-size:14px;padding:8px 9px}
  .lead-panel{grid-template-columns:1fr;gap:24px}
  .stat-bar{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .stat:nth-child(3){padding-left:0;border-left:0}
  .stat:nth-child(odd){padding-left:0;border-left:0}
}
@media (max-width:900px){
  .nav-main,.dropdown{display:none}
  .nav-toggle{display:inline-flex}
  .mobile-nav{display:block}
  .header-inner{padding:0 20px;gap:14px}
  .section{padding:72px 0}
  .page-hero{padding:calc(var(--header-h) + 52px) 0 62px}
  .alt-row{grid-template-columns:1fr;gap:26px;padding:38px 0}
  .alt-row.is-reversed .alt-media{order:0}
  .cta-inner{padding:32px 26px}
  .float-cta{display:none}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .footer-main{grid-template-columns:1fr 1fr;gap:28px;padding:56px 0 36px}
  .footer-brand{grid-column:1 / -1}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .stat-bar{padding:26px 22px}
  .faq-a-inner{padding:0 20px 20px 20px}
  .faq-q{padding:18px}
}
@media (max-width:560px){
  body{font-size:15.5px}
  .hero-actions{gap:12px}
  .hero-actions .btn{width:100%}
  .trust-bar{gap:10px;font-size:13px}
  .stat-bar{grid-template-columns:1fr;gap:22px}
  .stat{padding-left:0;border-left:0;border-top:1px solid var(--line);padding-top:18px}
  .stat:first-child{border-top:0;padding-top:0}
  .cta-inner{padding:26px 20px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-main{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
}