/* roulang page: index */
:root{
  --bg-0:#080D14;
  --bg-1:#0D141F;
  --bg-2:#131C2B;
  --brand:#2FD9C4;
  --brand-deep:#1FB6A6;
  --brand-soft:#A8F3E8;
  --accent:#F0A94C;
  --text-1:#EEF4FB;
  --text-2:#A7B4C6;
  --text-3:#6B7A8F;
  --line:rgba(255,255,255,.09);
  --line-brand:rgba(47,217,196,.38);
  --r-btn:999px;
  --r-sm:12px;
  --r-md:14px;
  --r-lg:18px;
  --r-xl:24px;
  --shadow-card:0 1px 0 rgba(255,255,255,.06) inset, 0 20px 60px -24px rgba(0,0,0,.8);
  --shadow-cta:0 0 0 1px rgba(47,217,196,.35), 0 10px 32px -8px rgba(47,217,196,.5);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sec-pad:clamp(56px,7vw,104px);
  --glass:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-2);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 600px at 88% -6%, rgba(47,217,196,.16), transparent 65%),
    radial-gradient(820px 620px at -10% 92%, rgba(240,169,76,.10), transparent 65%),
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:auto,auto,48px 48px,48px 48px;
  background-attachment:fixed,fixed,fixed,fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .24s var(--ease)}
a:hover{color:var(--brand-soft)}
h1,h2,h3,h4{color:var(--text-1);margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;padding-left:20px;padding-right:20px}
@media(min-width:1600px){.container{max-width:1280px}}
.section{padding:var(--sec-pad) 0;position:relative}
.section + .section{border-top:1px solid var(--line)}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.12em;color:var(--brand);
  padding:6px 14px;border:1px solid var(--line-brand);border-radius:var(--r-btn);
  background:rgba(47,217,196,.06);margin-bottom:18px;
}
.eyebrow-amber{color:var(--accent);border-color:rgba(240,169,76,.3);background:rgba(240,169,76,.07)}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head h2{font-size:clamp(23px,2.8vw,34px);line-height:1.25;margin-bottom:14px}
.sec-head p{font-size:15.5px;color:var(--text-2);margin:0}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.meta{font-size:13px;line-height:1.6;letter-spacing:.02em;color:var(--text-3);font-variant-numeric:tabular-nums}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(8,13,20,.55);
  backdrop-filter:blur(10px) saturate(130%);
  -webkit-backdrop-filter:blur(10px) saturate(130%);
  border-bottom:1px solid transparent;
  transition:background .28s var(--ease),border-color .28s var(--ease);
}
.site-header.scrolled{background:rgba(8,13,20,.82);border-bottom-color:var(--line)}
.head-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand svg{flex-shrink:0}
.brand-name{font-size:17px;font-weight:700;color:var(--text-1);letter-spacing:-.01em;white-space:nowrap}
.brand-name em{font-style:normal;color:var(--brand)}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links > a{
  position:relative;font-size:15px;color:var(--text-2);padding:10px 12px;border-radius:10px;
}
.nav-links > a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;background:var(--brand);
  transform:scaleX(0);transform-origin:center;transition:transform .26s var(--ease);
}
.nav-links > a:hover{color:var(--text-1)}
.nav-links > a:hover::after,.nav-links > a.active::after{transform:scaleX(1)}
.nav-links > a.active{color:var(--text-1)}
.nav-pill{
  display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--text-2);
  padding:8px 14px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:rgba(255,255,255,.03);transition:all .26s var(--ease);
}
.nav-pill:hover{color:var(--text-1);border-color:var(--line-brand);background:rgba(47,217,196,.07)}
.nav-pill .count{
  font-size:11px;line-height:1;padding:3px 6px;border-radius:999px;
  background:rgba(240,169,76,.14);color:var(--accent);font-variant-numeric:tabular-nums;
}
.nav-pill svg{stroke:var(--brand)}
.head-right{display:flex;align-items:center;gap:14px}
.text-link{font-size:14px;color:var(--text-2)}
.text-link:hover{color:var(--brand)}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);border:0;
  background:var(--brand);color:#06211E;font-size:15px;font-weight:700;
  box-shadow:var(--shadow-cta);transition:all .28s var(--ease);cursor:pointer;
}
.btn-brand:hover{color:#06211E;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(47,217,196,.5),0 16px 40px -8px rgba(47,217,196,.6)}
.btn-brand:active{background:var(--brand-deep);transform:none;box-shadow:0 0 0 1px rgba(47,217,196,.3)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--glass);color:var(--text-1);
  font-size:15px;font-weight:600;transition:all .28s var(--ease);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);cursor:pointer;
}
.btn-ghost:hover{color:var(--text-1);border-color:var(--line-brand);transform:translateY(-2px)}
.btn-ghost:active{transform:none;background:rgba(255,255,255,.04)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:rgba(255,255,255,.03);flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;transition:transform .26s var(--ease),opacity .2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-panel{
  display:none;position:fixed;left:0;right:0;top:60px;z-index:1029;
  background:rgba(8,13,20,.97);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);padding:8px 20px 20px;
  max-height:calc(100vh - 60px);overflow-y:auto;
}
.nav-panel.open{display:block;animation:panelIn .26s var(--ease)}
@keyframes panelIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
.nav-panel a.panel-link{
  display:flex;align-items:center;justify-content:space-between;
  font-size:16px;color:var(--text-1);line-height:52px;border-bottom:1px solid var(--line);
}
.nav-panel a.panel-link.active{color:var(--brand)}
.nav-panel .panel-cta{width:100%;margin-top:18px;min-height:48px}
.nav-cta-compact{display:none}

/* ============ hero ============ */
.hero{position:relative;padding:clamp(48px,7vw,88px) 0 clamp(56px,7vw,96px);overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.10;filter:blur(6px);transform:scale(1.06);
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:0;
  background:linear-gradient(180deg,rgba(8,13,20,.6),rgba(8,13,20,.96));
}
.hero .container{position:relative;z-index:1}
.hero h1{font-size:clamp(30px,4.4vw,50px);line-height:1.15;font-weight:700;letter-spacing:-.01em;margin-bottom:18px}
.hero-sub{font-size:16.5px;color:var(--text-2);max-width:520px;margin-bottom:28px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:30px}
.hero-points{display:flex;gap:26px;flex-wrap:wrap}
.hero-points li{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--text-2)}
.hero-points svg{stroke:var(--brand);flex-shrink:0}
.hero-card{
  position:relative;border:1px solid var(--line);border-radius:var(--r-xl);
  background:var(--glass);padding:12px;box-shadow:var(--shadow-card);
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
}
.hero-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:18px}
.hero-card-mask{
  position:absolute;left:12px;right:12px;top:12px;height:calc(100% - 24px);
  border-radius:18px;background:linear-gradient(160deg,rgba(8,13,20,.36),rgba(8,13,20,.05) 55%,rgba(8,13,20,.7));
  pointer-events:none;
}
.hero-card-tag{
  position:absolute;left:28px;bottom:28px;display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--text-1);background:rgba(8,13,20,.7);
  border:1px solid var(--line-brand);border-radius:var(--r-btn);padding:8px 14px;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.hero-card-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px var(--brand)}

/* ============ 品牌主张带 ============ */
.claims{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.claim{padding:6px 32px;border-left:1px solid var(--line)}
.claim:first-child{border-left:0;padding-left:0}
.claim h3{font-size:17px;margin:14px 0 8px;font-weight:600}
.claim p{font-size:14.5px;color:var(--text-2);margin:0;line-height:1.75}
.claim-icon{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line-brand);
  background:rgba(47,217,196,.07);display:flex;align-items:center;justify-content:center;
}
.claim-icon svg{stroke:var(--brand)}

/* ============ 故事 ============ */
.story-row + .story-row{margin-top:clamp(48px,6vw,84px)}
.story-img{border:1px solid var(--line);border-radius:var(--r-xl);padding:10px;background:var(--glass);box-shadow:var(--shadow-card)}
.story-img img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:18px}
.story-text h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;margin-bottom:16px}
.story-text p{font-size:15.5px;color:var(--text-2)}
.story-num{font-size:13px;letter-spacing:.12em;color:var(--accent);font-variant-numeric:tabular-nums;display:block;margin-bottom:12px}

/* ============ 精选卡 ============ */
.feature-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:24px;align-items:stretch}
.feature-main{
  border:1px solid var(--line);border-radius:var(--r-xl);background:var(--glass);
  overflow:hidden;box-shadow:var(--shadow-card);display:flex;flex-direction:column;
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.feature-main:hover{transform:translateY(-3px);border-color:var(--line-brand);box-shadow:0 1px 0 rgba(255,255,255,.06) inset,0 30px 70px -28px rgba(0,0,0,.9)}
.feature-main .thumb{position:relative;overflow:hidden}
.feature-main .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s var(--ease)}
.feature-main:hover .thumb img{transform:scale(1.03)}
.feature-body{padding:24px 26px 26px}
.feature-body h3{font-size:20px;margin:14px 0 10px}
.feature-body p{font-size:15px;color:var(--text-2);margin:0 0 18px}
.arrow-link{display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--brand);font-weight:600}
.arrow-link svg{transition:transform .28s var(--ease)}
.arrow-link:hover svg{transform:translateX(4px)}
.badge-accent{
  display:inline-block;font-size:12px;letter-spacing:.04em;color:var(--accent);
  background:rgba(240,169,76,.14);border-radius:var(--r-btn);padding:5px 12px;
}
.badge-brand{
  display:inline-block;font-size:12px;letter-spacing:.04em;color:var(--brand);
  background:rgba(47,217,196,.12);border-radius:var(--r-btn);padding:5px 12px;
}
.feature-side{display:flex;flex-direction:column;gap:24px}
.mini-card{
  flex:1;display:flex;gap:16px;align-items:flex-start;padding:20px;
  border:1px solid var(--line);border-radius:var(--r-lg);background:var(--glass);
  box-shadow:var(--shadow-card);backdrop-filter:blur(16px) saturate(140%);
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.mini-card:hover{transform:translateY(-3px);border-color:var(--line-brand)}
.mini-card img{width:88px;height:88px;flex-shrink:0;object-fit:cover;border-radius:14px}
.mini-card h3{font-size:17px;margin:10px 0 8px}
.mini-card p{font-size:14px;color:var(--text-2);margin:0}
.mini-num{font-size:12px;letter-spacing:.12em;color:var(--text-3);font-variant-numeric:tabular-nums}

/* ============ 文章列表 ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--r-lg);
  background:var(--glass);overflow:hidden;box-shadow:var(--shadow-card);
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.post-card:hover{transform:translateY(-3px);border-color:var(--line-brand)}
.post-card .thumb{overflow:hidden}
.post-card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease)}
.post-card:hover .thumb img{transform:scale(1.03)}
.post-card .body{padding:20px;display:flex;flex-direction:column;flex:1}
.post-card h3{font-size:17.5px;line-height:1.5;margin:12px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card h3 a{color:var(--text-1)}
.post-card h3 a:hover{color:var(--brand)}
.post-card .excerpt{font-size:14px;color:var(--text-2);margin:0 0 18px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--line);padding-top:14px}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-xl);padding:56px 24px;text-align:center;
  background:rgba(255,255,255,.02);
}
.empty-state svg{stroke:var(--text-3);margin:0 auto 16px}
.empty-state p{font-size:15px;color:var(--text-2);margin:0 0 20px}

/* ============ 数据与徽标 ============ */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-bottom:44px}
.stat{padding:0 28px;border-left:1px solid var(--line)}
.stat:first-child{border-left:0;padding-left:0}
.stat .num{font-size:clamp(26px,3vw,36px);font-weight:700;color:var(--text-1);font-variant-numeric:tabular-nums;line-height:1.2}
.stat .num span{font-size:15px;color:var(--brand);margin-left:4px;font-weight:600}
.stat .lbl{font-size:13.5px;color:var(--text-3);margin-top:6px}
.badge-strip{display:flex;flex-wrap:wrap;gap:12px;border-top:1px solid var(--line);padding-top:30px}
.badge-strip span{
  font-size:14px;color:var(--text-3);border:1px solid var(--line);border-radius:var(--r-btn);
  padding:8px 18px;transition:all .26s var(--ease);
}
.badge-strip span:hover{color:var(--text-1);border-color:var(--line-brand);background:rgba(47,217,196,.06)}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px}
.accordion{--bs-accordion-bg:transparent;--bs-accordion-border-width:0;--bs-accordion-btn-focus-box-shadow:none}
.accordion-item{
  border:1px solid var(--line) !important;border-radius:var(--r-lg) !important;overflow:hidden;
  background:var(--glass) !important;backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  margin-bottom:10px;position:relative;
}
.accordion-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);
  transform:scaleY(0);transform-origin:top;transition:transform .3s var(--ease);
}
.accordion-item:has(.accordion-button:not(.collapsed))::before{transform:scaleY(1)}
.accordion-item:has(.accordion-button:not(.collapsed)){background:linear-gradient(160deg,rgba(47,217,196,.08),rgba(255,255,255,.02)) !important}
.accordion-button{
  background:transparent !important;color:var(--text-1) !important;
  font-size:16.5px;font-weight:600;padding:20px 60px 20px 24px;line-height:1.5;box-shadow:none !important;
}
.accordion-button:not(.collapsed){color:var(--text-1) !important}
.accordion-button::after{
  content:"+";background-image:none !important;font-size:22px;font-weight:400;color:var(--brand);
  width:auto;height:auto;line-height:1;display:flex;align-items:center;justify-content:center;
  transition:transform .3s var(--ease);right:22px;
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.accordion-body{padding:0 24px 22px;font-size:15px;color:var(--text-2);line-height:1.8}

/* ============ CTA / 表单 ============ */
.cta-panel{
  position:relative;overflow:hidden;border:1px solid var(--line);border-radius:var(--r-xl);
  background:var(--glass);box-shadow:var(--shadow-card);padding:clamp(30px,4vw,52px);
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
}
.cta-panel::before,.cta-panel::after{content:"";position:absolute;border-radius:50%;pointer-events:none}
.cta-panel::before{width:340px;height:340px;right:-90px;top:-120px;background:radial-gradient(circle,rgba(47,217,196,.22),transparent 68%)}
.cta-panel::after{width:300px;height:300px;left:-110px;bottom:-140px;background:radial-gradient(circle,rgba(240,169,76,.16),transparent 68%)}
.cta-panel .inner{position:relative;z-index:1}
.cta-panel h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;margin-bottom:12px}
.cta-panel p{font-size:15px;color:var(--text-2);margin:0}
.form-row{display:flex;gap:12px;flex-wrap:wrap}
.form-control{
  height:48px;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-md);
  color:var(--text-1);padding:0 16px;font-size:15px;flex:1 1 220px;min-width:0;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.form-control::placeholder{color:var(--text-3)}
.form-control:focus{
  background:var(--bg-2);border-color:var(--brand);color:var(--text-1);
  box-shadow:0 0 0 3px rgba(47,217,196,.18);outline:none;
}
.form-note{font-size:13px;color:var(--text-3);margin-top:14px}
.form-note a{margin-left:10px}

/* ============ footer ============ */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:clamp(48px,6vw,72px) 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-brand .brand-name{font-size:16px}
.foot-about{font-size:14px;color:var(--text-2);max-width:290px;line-height:1.8}
.foot-col h4{font-size:15px;color:var(--text-1);margin-bottom:18px;font-weight:600}
.foot-col ul li{margin-bottom:11px}
.foot-col a{font-size:14px;color:var(--text-2)}
.foot-col a:hover{color:var(--brand)}
.foot-col p{font-size:14px;color:var(--text-2);margin:0 0 10px}
.foot-bottom{
  margin-top:clamp(36px,5vw,56px);border-top:1px solid var(--line);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.foot-bottom p{font-size:13px;color:var(--text-3);margin:0}
.foot-bottom .links a{font-size:13px;color:var(--text-3);margin-left:18px}
.foot-bottom .links a:hover{color:var(--brand)}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media(max-width:1199px){
  .nav-links > a{padding:10px 9px;font-size:14.5px}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .foot-col:last-child{grid-column:span 3}
}
@media(max-width:991px){
  .nav-links,.head-right .btn-brand{display:none}
  .nav-toggle{display:flex}
  .nav-cta-compact{display:inline-flex;min-height:40px;padding:0 16px;font-size:14px}
  .head-inner{height:60px}
  .nav-panel{top:60px}
  .hero{padding-top:44px}
  .feature-grid{grid-template-columns:1fr}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .stat:nth-child(3){border-left:0;padding-left:0}
  .claim{padding:6px 22px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .foot-col:last-child{grid-column:span 2}
}
@media(max-width:767px){
  body{font-size:15.5px;line-height:1.85}
  .brand-name{font-size:16px}
  .hero h1{font-size:clamp(26px,7.4vw,34px)}
  .hero-sub{font-size:15.5px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%}
  .hero-points{gap:14px 20px}
  .claims{grid-template-columns:1fr;gap:26px}
  .claim{border-left:0;border-top:1px solid var(--line);padding:26px 0 0}
  .claim:first-child{border-top:0;padding-top:0}
  .post-grid{grid-template-columns:1fr}
  .mini-card img{width:72px;height:72px}
  .stats{grid-template-columns:1fr 1fr;gap:26px 0}
  .stat{padding:0 16px}
  .stat .num{font-size:26px}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .foot-col:last-child{grid-column:span 1}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .foot-bottom .links a{margin-left:0;margin-right:18px}
  .cta-panel{padding:28px 22px}
  .form-row{flex-direction:column}
  .form-control{width:100%}
  .form-row .btn-brand{width:100%}
  .accordion-button{font-size:15.5px;padding:18px 52px 18px 20px}
  .section + .section{border-top:0}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --bg-0:#080D14; --bg-1:#0D141F; --bg-2:#131C2B;
  --brand:#2FD9C4; --brand-deep:#1FB6A6; --brand-soft:#A8F3E8;
  --accent:#F0A94C;
  --text-1:#EEF4FB; --text-2:#A7B4C6; --text-3:#6B7A8F;
  --line:rgba(255,255,255,.09); --line-brand:rgba(47,217,196,.38);
  --r-btn:999px; --r-s:12px; --r-sm:14px; --r-m:18px; --r-l:24px;
  --shadow-card:0 1px 0 rgba(255,255,255,.06) inset, 0 20px 60px -24px rgba(0,0,0,.8);
  --ease:cubic-bezier(.22,.61,.36,1);
  --wrap:1200px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0; padding:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px; line-height:1.8; color:var(--text-2);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 620px at 88% -8%, rgba(47,217,196,.16), transparent 62%),
    radial-gradient(780px 560px at 3% 88%, rgba(240,169,76,.10), transparent 60%),
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:auto, auto, 48px 48px, 48px 48px;
  background-attachment:fixed, fixed, scroll, scroll;
  overflow-x:hidden;
}
a{color:var(--brand); text-decoration:none; transition:color .24s var(--ease), border-color .24s var(--ease);}
a:hover{color:var(--brand-soft);}
img{max-width:100%; height:auto; display:block;}
h1,h2,h3,h4{margin:0; color:var(--text-1); font-weight:700; letter-spacing:-.01em;}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand); outline-offset:3px; border-radius:6px;}
.container{width:100%; max-width:var(--wrap); margin:0 auto; padding:0 20px;}
@media (min-width:1600px){ .container{max-width:1280px;} }

/* ============ 导航 ============ */
.site-header{
  position:sticky; top:0; z-index:80;
  background:rgba(8,13,20,.55);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background .3s var(--ease);
}
.site-header.scrolled{background:rgba(8,13,20,.86);}
.head-inner{display:flex; align-items:center; justify-content:space-between; gap:18px; height:72px;}
.brand{display:flex; align-items:center; gap:10px; flex:0 0 auto;}
.brand-name{font-size:17.5px; font-weight:700; color:var(--text-1); letter-spacing:-.01em;}
.brand-name em{font-style:normal; color:var(--brand);}
.nav-links{display:flex; align-items:center; gap:26px;}
.nav-links a{
  position:relative; display:inline-block; padding:6px 2px;
  font-size:15px; color:var(--text-2); white-space:nowrap;
}
.nav-links a::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:2px;
  background:var(--brand); transform:scaleX(0); transform-origin:center;
  transition:transform .26s var(--ease);
}
.nav-links a:hover{color:var(--text-1);}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);}
.nav-links a.active{color:var(--brand);}
.head-right{display:flex; align-items:center; gap:10px; flex:0 0 auto;}
.nav-pill{
  display:inline-flex; align-items:center; gap:7px; height:38px; padding:0 15px;
  border-radius:var(--r-btn); font-size:14px; color:var(--text-2);
  background:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  border:1px solid var(--line);
  transition:all .24s var(--ease);
}
.nav-pill svg{stroke:var(--brand); fill:none;}
.nav-pill:hover{color:var(--text-1); border-color:var(--line-brand); transform:translateY(-1px);}
.nav-pill .count{
  font-size:11px; line-height:1; padding:3px 6px; border-radius:999px;
  color:var(--accent); background:rgba(240,169,76,.14);
  font-variant-numeric:tabular-nums;
}
.btn-brand{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:44px; padding:0 22px; border-radius:var(--r-btn); border:0;
  font-size:15px; font-weight:600; color:#06211E; background:var(--brand);
  box-shadow:0 0 0 1px rgba(47,217,196,.35), 0 10px 32px -8px rgba(47,217,196,.5);
  transition:all .24s var(--ease); white-space:nowrap; cursor:pointer;
}
.btn-brand:hover{filter:brightness(1.06); transform:translateY(-2px); color:#06211E; box-shadow:0 0 0 1px rgba(47,217,196,.42), 0 16px 40px -10px rgba(47,217,196,.6);}
.btn-brand:active{background:var(--brand-deep); transform:none;}
.btn-ghost{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:44px; padding:0 22px; border-radius:var(--r-btn);
  font-size:15px; color:var(--text-1);
  background:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  border:1px solid var(--line);
  transition:all .24s var(--ease);
}
.btn-ghost:hover{color:var(--text-1); border-color:var(--line-brand); transform:translateY(-2px);}
.nav-toggle{
  display:none; width:44px; height:44px; border-radius:12px; border:1px solid var(--line);
  background:rgba(255,255,255,.04); padding:0; cursor:pointer;
  flex-direction:column; align-items:center; justify-content:center; gap:4px;
}
.nav-toggle span{display:block; width:18px; height:1.6px; background:var(--text-1); border-radius:2px; transition:all .24s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5.6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg);}
.nav-panel{
  display:none; flex-direction:column; padding:6px 20px 22px;
  background:rgba(8,13,20,.96); border-top:1px solid var(--line);
  backdrop-filter:blur(18px); -webkit-backdrop-filter:blur(18px);
}
.nav-panel.open{display:flex;}
.panel-link{
  display:flex; align-items:center; justify-content:space-between;
  height:52px; font-size:16px; color:var(--text-2); border-bottom:1px solid var(--line);
}
.panel-link.active{color:var(--brand);}
.panel-link .meta{font-size:12px; letter-spacing:.12em; color:var(--text-3); font-variant-numeric:tabular-nums;}
.panel-cta{margin-top:18px; width:100%;}

/* ============ 面包屑 ============ */
.crumb-bar{padding-top:26px;}
.crumb{display:flex; align-items:center; flex-wrap:wrap; gap:8px; font-size:13px; color:var(--text-3); letter-spacing:.02em;}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:rgba(255,255,255,.18);}
.crumb .current{color:var(--text-2); max-width:52%; overflow:hidden; text-overflow:ellipsis; white-space:nowrap;}

/* ============ 文章头部 ============ */
.article-head{padding:34px 0 0;}
.head-wrap{max-width:840px; margin:0 auto;}
.badge-cat{
  display:inline-flex; align-items:center; gap:6px; height:28px; padding:0 13px;
  border-radius:999px; font-size:12px; letter-spacing:.12em;
  color:var(--accent); background:rgba(240,169,76,.14);
}
.article-title{
  margin:16px 0 0; font-size:clamp(26px,3.6vw,40px); line-height:1.22; letter-spacing:-.01em;
}
.article-meta{
  display:flex; align-items:center; flex-wrap:wrap; gap:10px 14px;
  margin-top:18px; font-size:13px; color:var(--text-3); letter-spacing:.02em;
  font-variant-numeric:tabular-nums;
}
.article-meta .dot{width:1px; height:12px; background:var(--line);}
.rule{height:1px; background:var(--line); margin:22px 0 0; border:0;}
.cover-wrap{margin:26px 0 0; border-radius:20px; overflow:hidden; border:1px solid var(--line); box-shadow:var(--shadow-card);}
.cover-wrap img{width:100%; aspect-ratio:16/9; object-fit:cover;}

/* ============ 正文 ============ */
.article-main{padding:34px 0 clamp(56px,7vw,96px);}
.article-body-wrap{max-width:780px; margin:0 auto;}
.article-body{font-size:16.5px; line-height:1.9; color:var(--text-2);}
.article-body p{margin:0 0 1.25em;}
.article-body h2{
  position:relative; margin:36px 0 14px; padding-left:15px;
  font-size:clamp(20px,2.2vw,24px); line-height:1.35;
}
.article-body h2::before{
  content:""; position:absolute; left:0; top:.2em; bottom:.2em; width:4px;
  border-radius:2px; background:var(--brand);
}
.article-body h3{margin:26px 0 10px; font-size:18px; line-height:1.4;}
.article-body h4{margin:22px 0 8px; font-size:16.5px; color:var(--text-1);}
.article-body ul,.article-body ol{margin:0 0 1.3em; padding-left:1.25em;}
.article-body ul{list-style:none; padding-left:1.1em;}
.article-body ul > li{position:relative;}
.article-body ul > li::before{
  content:""; position:absolute; left:-1.05em; top:.72em; width:6px; height:6px;
  border-radius:2px; background:var(--brand);
}
.article-body ol > li::marker{color:var(--brand); font-variant-numeric:tabular-nums;}
.article-body li{margin-bottom:8px;}
.article-body blockquote{
  margin:22px 0; padding:16px 20px; color:var(--text-2);
  background:var(--bg-2); border-left:3px solid var(--brand); border-radius:0 14px 14px 0;
  font-style:normal;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:16px; margin:22px auto;}
.article-body figure{margin:22px 0;}
.article-body figcaption{text-align:center; font-size:13px; color:var(--text-3); margin-top:10px;}
.article-body a{color:var(--brand); border-bottom:1px solid rgba(47,217,196,.35);}
.article-body a:hover{color:var(--brand-soft); border-bottom-color:var(--brand-soft);}
.article-body strong{color:var(--text-1);}
.article-body hr{border:0; border-top:1px solid var(--line); margin:30px 0;}
.article-body code{
  padding:2px 6px; border-radius:6px; font-size:14px; color:var(--brand-soft);
  background:var(--bg-2); font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body pre{
  padding:16px 18px; border-radius:14px; border:1px solid var(--line);
  background:var(--bg-2); overflow-x:auto; margin:20px 0;
}
.article-body pre code{background:none; padding:0; color:var(--text-2);}
.article-body table{
  display:block; width:100%; overflow-x:auto; border-collapse:collapse;
  margin:22px 0; font-size:15px;
}
.article-body th{
  text-align:left; padding:12px 14px; color:var(--brand); font-weight:600;
  border-bottom:1px solid var(--line); white-space:nowrap;
}
.article-body td{padding:12px 14px; border-bottom:1px solid var(--line);}
.article-body tbody tr:nth-child(odd){background:var(--bg-1);}
.article-body tbody tr:nth-child(even){background:var(--bg-2);}
.empty-state{
  display:flex; flex-direction:column; align-items:center; gap:16px;
  padding:56px 24px; text-align:center; border-radius:var(--r-l); border:1px solid var(--line);
  background:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  box-shadow:var(--shadow-card);
}
.empty-state svg{stroke:var(--brand); fill:none;}
.empty-state p{font-size:16px; color:var(--text-2);}

/* ============ 标签 ============ */
.tag-row{display:flex; flex-wrap:wrap; gap:10px; margin:38px 0 0; padding-top:24px; border-top:1px solid var(--line);}
.tag{
  display:inline-flex; align-items:center; height:32px; padding:0 14px; border-radius:999px;
  font-size:13px; color:var(--text-2); border:1px solid var(--line);
  background:linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  transition:all .24s var(--ease);
}
.tag:hover{color:var(--text-1); border-color:var(--line-brand); transform:translateY(-2px);}

/* ============ 相关推荐 ============ */
.related{padding:clamp(48px,6vw,84px) 0;border-top:1px solid var(--line);}
.sec-head{display:flex; align-items:flex-end; justify-content:space-between; gap:20px; margin-bottom:26px;}
.sec-head h2{font-size:clamp(22px,2.6vw,30px);}
.sec-head .more{font-size:14px; color:var(--brand);}
.sec-head .more:hover{text-decoration:underline;}
.card-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:24px;}
.article-card{
  display:flex; flex-direction:column; overflow:hidden; border-radius:var(--r-m);
  border:1px solid var(--line); background:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  box-shadow:var(--shadow-card); backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  transition:transform .28s var(--ease), border-color .28s var(--ease);
}
.article-card:hover{transform:translateY(-3px); border-color:var(--line-brand);}
.article-card .thumb{overflow:hidden; border-bottom:1px solid var(--line);}
.article-card .thumb img{width:100%; aspect-ratio:16/10; object-fit:cover; transition:transform .32s var(--ease);}
.article-card:hover .thumb img{transform:scale(1.03);}
.article-card .body{padding:18px 20px 20px; display:flex; flex-direction:column; gap:10px;}
.article-card h3{font-size:17.5px; line-height:1.45;}
.article-card p{font-size:14px; line-height:1.75; color:var(--text-3);}
.card-meta{
  display:flex; align-items:center; justify-content:space-between;
  margin-top:2px; font-size:13px; color:var(--text-3); font-variant-numeric:tabular-nums;
}
.card-meta .arrow{color:var(--brand); transition:transform .24s var(--ease);}
.article-card:hover .card-meta .arrow{transform:translateX(4px);}
.back-row{display:flex; justify-content:center; margin-top:34px;}

/* ============ CTA ============ */
.cta-band{padding:0 0 clamp(56px,7vw,96px);}
.cta-panel{
  position:relative; overflow:hidden; border-radius:var(--r-l); border:1px solid var(--line);
  background:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  box-shadow:var(--shadow-card); backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  padding:clamp(28px,4vw,46px);
  display:flex; align-items:center; justify-content:space-between; gap:30px;
}
.cta-panel::before,.cta-panel::after{
  content:""; position:absolute; width:280px; height:280px; border-radius:50%; pointer-events:none;
}
.cta-panel::before{top:-160px; right:-90px; background:radial-gradient(circle, rgba(47,217,196,.22), transparent 70%);}
.cta-panel::after{bottom:-170px; left:-100px; background:radial-gradient(circle, rgba(240,169,76,.16), transparent 70%);}
.cta-panel .copy{position:relative; z-index:1; max-width:620px;}
.cta-panel h2{font-size:clamp(21px,2.5vw,29px); margin-bottom:10px;}
.cta-panel p{font-size:15px; color:var(--text-2);}
.cta-actions{position:relative; z-index:1; display:flex; flex-wrap:wrap; gap:12px; flex:0 0 auto;}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-1); border-top:1px solid var(--line); padding:clamp(44px,5vw,68px) 0 26px;}
.foot-grid{display:grid; grid-template-columns:1.5fr 1fr 1fr 1fr; gap:34px;}
.foot-brand{display:flex; align-items:center; gap:10px; margin-bottom:14px;}
.foot-brand .brand-name{font-size:16.5px;}
.foot-about{font-size:14px; line-height:1.8; color:var(--text-3); max-width:320px;}
.foot-col h4{font-size:15px; margin-bottom:16px; color:var(--text-1);}
.foot-col ul{list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:10px;}
.foot-col li a{font-size:14px; color:var(--text-2);}
.foot-col li a:hover{color:var(--brand);}
.foot-col p{font-size:14px; color:var(--text-3); line-height:1.8;}
.foot-bottom{
  margin-top:36px; padding-top:20px; border-top:1px solid var(--line);
  display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap;
}
.foot-bottom p{font-size:13px; color:var(--text-3);}
.foot-bottom .links{display:flex; gap:18px; flex-wrap:wrap;}
.foot-bottom .links a{font-size:13px; color:var(--text-3);}
.foot-bottom .links a:hover{color:var(--brand);}

/* ============ 响应式 ============ */
@media (min-width:992px){
  .nav-panel{display:none !important;}
}
@media (max-width:1199px){
  .nav-links{gap:18px;}
  .nav-links a{font-size:14.5px;}
}
@media (max-width:1024px){
  .nav-pill{display:none;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .head-right .btn-brand{display:none;}
  .nav-toggle{display:flex;}
  .foot-grid{grid-template-columns:1fr 1fr; gap:28px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .cta-panel{flex-direction:column; align-items:flex-start;}
}
@media (max-width:767px){
  .head-inner{height:60px;}
  .brand-name{font-size:16px;}
  .crumb .current{max-width:100%;}
  .article-body{font-size:15.5px; line-height:1.85;}
  .card-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;}
  .foot-about{max-width:none;}
  .cta-actions{width:100%;}
  .cta-actions .btn-brand,.cta-actions .btn-ghost{width:100%;}
  .sec-head{flex-direction:column; align-items:flex-start; gap:8px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column; align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important; animation:none !important;}
}

/* roulang page: category1 */
:root{
  --bg-0:#080D14;
  --bg-1:#0D141F;
  --bg-2:#131C2B;
  --brand:#2FD9C4;
  --brand-deep:#1FB6A6;
  --brand-soft:#A8F3E8;
  --accent:#F0A94C;
  --text-1:#EEF4FB;
  --text-2:#A7B4C6;
  --text-3:#6B7A8F;
  --line:rgba(255,255,255,.09);
  --line-brand:rgba(47,217,196,.38);
  --danger:#F06B5A;
  --r-xs:12px;
  --r-sm:14px;
  --r-md:18px;
  --r-lg:24px;
  --r-pill:999px;
  --shadow-card:0 1px 0 rgba(255,255,255,.06) inset,0 20px 60px -24px rgba(0,0,0,.8);
  --shadow-hover:0 1px 0 rgba(255,255,255,.08) inset,0 28px 70px -26px rgba(0,0,0,.92);
  --ease:cubic-bezier(.22,.61,.36,1);
  --glass:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  --sec-pad:clamp(56px,7vw,104px);
}
*,*::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","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-2);
  background-color:var(--bg-0);
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  background-image:
    radial-gradient(900px 620px at 88% -6%,rgba(47,217,196,.16),transparent 62%),
    radial-gradient(760px 560px at -8% 92%,rgba(240,169,76,.10),transparent 60%),
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:auto,auto,48px 48px,48px 48px;
  background-position:center,center,0 0,0 0;
  pointer-events:none;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .24s var(--ease)}
a:hover{color:var(--brand-soft)}
h1,h2,h3,h4{color:var(--text-1);margin:0;line-height:1.25;letter-spacing:-.01em}
h1{font-size:clamp(30px,4.4vw,50px);font-weight:700;line-height:1.15}
h2{font-size:clamp(23px,2.8vw,34px);font-weight:700}
h3{font-size:19px;font-weight:600;line-height:1.4}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}

.container{
  width:100%;
  max-width:1200px !important;
  margin:0 auto;
  padding-left:20px !important;
  padding-right:20px !important;
}
@media (min-width:1600px){
  .container{max-width:1280px !important}
}

/* ============ 通用按钮 ============ */
.btn-brand,
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:11px 24px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  cursor:pointer;
  border:1px solid transparent;
  transition:transform .26s var(--ease),background .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease),color .26s var(--ease);
  white-space:nowrap;
}
.btn-brand{
  background:var(--brand);
  color:#06211E !important;
  box-shadow:0 0 0 1px rgba(47,217,196,.35),0 10px 32px -8px rgba(47,217,196,.5);
}
.btn-brand:hover{
  transform:translateY(-2px);
  filter:brightness(1.06);
  box-shadow:0 0 0 1px rgba(47,217,196,.5),0 16px 40px -8px rgba(47,217,196,.62);
}
.btn-brand:active{
  transform:translateY(0);
  background:var(--brand-deep);
  box-shadow:0 0 0 1px rgba(47,217,196,.4),0 6px 18px -8px rgba(47,217,196,.45);
}
.btn-ghost{
  background:var(--glass);
  border-color:var(--line);
  color:var(--text-1) !important;
  backdrop-filter:blur(14px) saturate(140%);
}
.btn-ghost:hover{
  border-color:var(--line-brand);
  transform:translateY(-2px);
  color:var(--brand-soft) !important;
}
.btn-ghost:active{transform:translateY(0)}
.btn-brand:focus-visible,
.btn-ghost:focus-visible,
a:focus-visible,
button:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:3px;
}
.btn-sm-brand{min-height:40px;padding:9px 18px;font-size:14px}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(8,13,20,.55);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease),backdrop-filter .3s var(--ease);
}
.site-header.scrolled{
  background:rgba(8,13,20,.82);
  backdrop-filter:blur(18px) saturate(150%);
  border-bottom-color:var(--line);
}
.head-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--text-1);
}
.brand svg{flex-shrink:0}
.brand-name{
  font-size:17.5px;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--text-1);
  white-space:nowrap;
}
.brand-name em{font-style:normal;color:var(--brand)}
.nav-links{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:8px;
  flex:1;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:9px 12px;
  font-size:15px;
  color:var(--text-2);
  border-radius:10px;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transition:transform .28s var(--ease);
}
.nav-links a:hover{color:var(--text-1)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--text-1);font-weight:600}
.nav-links a.active::after{transform:scaleX(1)}
.head-right{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:auto;
  flex-shrink:0;
}
.nav-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:38px;
  padding:0 14px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(12px) saturate(140%);
  color:var(--text-2);
  font-size:14px;
  transition:color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease);
}
.nav-pill svg{stroke:var(--brand);flex-shrink:0}
.nav-pill:hover{color:var(--text-1);border-color:var(--line-brand);transform:translateY(-1px)}
.nav-pill .count{
  display:inline-block;
  min-width:20px;
  padding:1px 6px;
  border-radius:var(--r-pill);
  background:rgba(47,217,196,.16);
  color:var(--brand);
  font-size:11px;
  line-height:1.5;
  text-align:center;
}
.head-right .btn-brand{min-height:44px;padding:10px 22px;font-size:15px}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:12px;
  background:var(--glass);
  cursor:pointer;
  padding:0;
  position:relative;
}
.nav-toggle span{
  position:absolute;
  left:12px;
  right:12px;
  height:1.5px;
  background:var(--text-1);
  border-radius:2px;
  transition:transform .28s var(--ease),opacity .2s var(--ease),top .28s var(--ease);
}
.nav-toggle span:nth-child(1){top:15px}
.nav-toggle span:nth-child(2){top:21.5px}
.nav-toggle span:nth-child(3){top:28px}
.nav-toggle.open span:nth-child(1){top:21.5px;transform:rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){top:21.5px;transform:rotate(-45deg)}

.nav-panel{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(8,13,20,.97);
  backdrop-filter:blur(18px);
  padding:8px 20px 22px;
  max-height:calc(100vh - 60px);
  overflow-y:auto;
}
.nav-panel.open{display:block}
.panel-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:52px;
  font-size:16px;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.panel-link.active{color:var(--brand)}
.panel-link .meta{font-size:12px;letter-spacing:.12em;color:var(--text-3)}
.nav-panel .panel-cta{
  display:flex;
  width:100%;
  margin-top:18px;
}

/* ============ 页头 ============ */
.page-hero{
  position:relative;
  padding:clamp(36px,4.6vw,64px) 0 clamp(44px,5.4vw,80px);
  background:
    linear-gradient(180deg,rgba(8,13,20,.6),rgba(13,20,31,.94)),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  top:-180px;
  right:-120px;
  width:640px;
  height:640px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(47,217,196,.20),transparent 66%);
  pointer-events:none;
}
.breadcrumb-nav{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.02em;
  color:var(--text-3);
  margin-bottom:26px;
  position:relative;
  z-index:1;
}
.breadcrumb-nav a{color:var(--text-3)}
.breadcrumb-nav a:hover{color:var(--brand)}
.breadcrumb-nav span.sep{opacity:.6}
.breadcrumb-nav .cur{color:var(--text-2)}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.12em;
  color:var(--accent);
  background:rgba(240,169,76,.14);
  border-radius:var(--r-pill);
  padding:5px 13px;
  margin-bottom:18px;
}
.page-hero h1{margin-bottom:18px;position:relative;z-index:1}
.page-hero .lead{
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-2);
  max-width:620px;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-figure{
  margin:0;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--glass);
  box-shadow:var(--shadow-card);
  position:relative;
}
.hero-figure img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.hero-figure figcaption{
  padding:12px 16px;
  font-size:13px;
  color:var(--text-3);
  border-top:1px solid var(--line);
}

/* ============ 通用板块 ============ */
.section{padding:var(--sec-pad) 0}
.section-tight{padding:clamp(40px,5vw,72px) 0}
.sec-head{margin-bottom:clamp(28px,3.4vw,48px);max-width:760px}
.sec-head .kicker{
  display:block;
  font-size:12px;
  letter-spacing:.12em;
  color:var(--brand);
  margin-bottom:12px;
}
.sec-head p{margin-top:14px;color:var(--text-2)}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* 三条要点带 */
.point-band{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:var(--bg-1);
}
.point-row{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:0;
}
.point-item{
  padding:30px 28px;
  border-left:1px solid var(--line);
}
.point-item:first-child{border-left:0;padding-left:0}
.point-item:last-child{padding-right:0}
.point-item .ico{
  width:38px;
  height:38px;
  border-radius:12px;
  border:1px solid var(--line-brand);
  background:rgba(47,217,196,.10);
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:16px;
}
.point-item h3{font-size:17px;margin-bottom:8px}
.point-item p{font-size:14.5px;color:var(--text-3);line-height:1.75;margin:0}

/* 图文交替 */
.split{display:grid;grid-template-columns:5fr 7fr;gap:clamp(24px,4vw,56px);align-items:center}
.split.reverse{grid-template-columns:7fr 5fr}
.split.reverse .split-media{order:-1}
.split-media figure{
  margin:0;
  border-radius:var(--r-md);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  background:var(--bg-1);
}
.split-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .32s var(--ease);
}
.split-media figure:hover img{transform:scale(1.03)}
.split-text .tag{
  display:inline-block;
  font-size:12px;
  letter-spacing:.12em;
  color:var(--brand);
  margin-bottom:14px;
}
.split-text h2{margin-bottom:18px}
.split-text p{font-size:16px}
.check-list{margin-top:24px;display:grid;gap:12px}
.check-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:15px;
  color:var(--text-2);
}
.check-list li svg{flex-shrink:0;margin-top:5px;stroke:var(--brand)}
.check-list li strong{color:var(--text-1);font-weight:600}

/* 核对清单 */
.check-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}
.check-card{
  display:flex;
  gap:16px;
  padding:22px 22px 20px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-card);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.check-card:hover{
  transform:translateY(-3px);
  border-color:var(--line-brand);
  box-shadow:var(--shadow-hover);
}
.check-card .num{
  flex-shrink:0;
  width:40px;
  height:40px;
  border-radius:12px;
  border:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  font-weight:600;
  color:var(--brand);
  background:rgba(47,217,196,.08);
}
.check-card h3{font-size:17px;margin-bottom:6px}
.check-card p{font-size:14.5px;margin:0;color:var(--text-3);line-height:1.75}

/* 提示卡 */
.notice-panel{
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-card);
  padding:clamp(24px,3vw,36px);
}
.notice-panel h2{font-size:clamp(21px,2.2vw,26px);margin-bottom:18px}
.notice-list{display:grid;gap:14px}
.notice-list li{
  display:flex;
  gap:12px;
  font-size:15px;
  line-height:1.8;
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
}
.notice-list li:last-child{border-bottom:0;padding-bottom:0}
.notice-list .dot{
  flex-shrink:0;
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--accent);
  margin-top:10px;
  box-shadow:0 0 0 4px rgba(240,169,76,.14);
}
.notice-list b{color:var(--text-1);font-weight:600}

/* CTA 带 */
.cta-band{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-card);
  padding:clamp(28px,3.6vw,48px);
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:clamp(20px,3vw,44px);
  align-items:center;
}
.cta-band::before,
.cta-band::after{
  content:"";
  position:absolute;
  border-radius:50%;
  pointer-events:none;
}
.cta-band::before{
  width:340px;height:340px;top:-160px;left:-120px;
  background:radial-gradient(circle,rgba(47,217,196,.24),transparent 68%);
}
.cta-band::after{
  width:300px;height:300px;bottom:-170px;right:-100px;
  background:radial-gradient(circle,rgba(240,169,76,.16),transparent 68%);
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:12px;position:relative}
.cta-band p{font-size:15.5px;position:relative;margin:0}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  position:relative;
}
.cta-note{
  margin-top:16px;
  font-size:13px;
  color:var(--text-3);
  position:relative;
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:clamp(44px,5vw,72px) 0 26px;
  margin-top:clamp(48px,6vw,88px);
}
.foot-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:clamp(24px,3vw,44px);
}
.foot-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.foot-about{
  font-size:14px;
  color:var(--text-3);
  line-height:1.8;
  max-width:280px;
  margin:0;
}
.foot-col h4{
  font-size:15px;
  color:var(--text-1);
  margin-bottom:16px;
  font-weight:600;
}
.foot-col ul{display:grid;gap:10px}
.foot-col ul a,
.foot-col p a{
  font-size:14px;
  color:var(--text-2);
}
.foot-col ul a:hover,
.foot-col p a:hover{color:var(--brand);text-decoration:underline}
.foot-col p{font-size:14px;color:var(--text-3);line-height:1.8}
.foot-bottom{
  margin-top:clamp(30px,3.6vw,48px);
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.foot-bottom p{font-size:13px;color:var(--text-3);margin:0}
.foot-bottom .links{display:flex;flex-wrap:wrap;gap:18px}
.foot-bottom .links a{font-size:13px;color:var(--text-3)}
.foot-bottom .links a:hover{color:var(--brand)}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .nav-links a{padding:9px 9px;font-size:14.5px}
  .nav-pill{padding:0 11px;font-size:13.5px}
  .head-inner{gap:16px}
}
@media (max-width:991.98px){
  .nav-links{display:none}
  .nav-pill{display:none}
  .nav-toggle{display:block}
  .head-inner{height:60px}
  .page-hero::after{width:420px;height:420px;top:-160px;right:-160px}
  .point-row{grid-template-columns:1fr}
  .point-item{border-left:0;border-top:1px solid var(--line);padding:26px 0}
  .point-item:first-child{border-top:0;padding-top:8px}
  .point-item:last-child{padding-right:0;padding-bottom:0}
  .split,
  .split.reverse{grid-template-columns:1fr;gap:28px}
  .split.reverse .split-media{order:0}
  .cta-band{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .hero-figure img{aspect-ratio:16/9}
}
@media (max-width:767.98px){
  body{font-size:15.5px;line-height:1.85}
  .container{padding-left:16px !important;padding-right:16px !important}
  .brand-name{font-size:16px}
  .head-right .btn-brand{padding:9px 16px;font-size:14px;min-height:40px}
  .check-grid{grid-template-columns:1fr}
  .cta-actions .btn-brand,
  .cta-actions .btn-ghost,
  .hero-actions .btn-brand,
  .hero-actions .btn-ghost{width:100%}
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px}
  .foot-about{max-width:none}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .foot-grid{grid-template-columns:1fr}
  .breadcrumb-nav{font-size:12.5px}
  .page-hero h1{font-size:28px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
  }
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --bg-0:#080D14;
  --bg-1:#0D141F;
  --bg-2:#131C2B;
  --brand:#2FD9C4;
  --brand-deep:#1FB6A6;
  --brand-soft:#A8F3E8;
  --accent:#F0A94C;
  --text-1:#EEF4FB;
  --text-2:#A7B4C6;
  --text-3:#6B7A8F;
  --line:rgba(255,255,255,.09);
  --line-brand:rgba(47,217,196,.38);
  --r-s:12px;
  --r-m:14px;
  --r-l:18px;
  --r-xl:24px;
  --shadow:0 1px 0 rgba(255,255,255,.06) inset, 0 20px 60px -24px rgba(0,0,0,.8);
  --shadow-hi:0 1px 0 rgba(255,255,255,.08) inset, 0 26px 64px -22px rgba(0,0,0,.9);
  --ease:cubic-bezier(.22,.61,.36,1);
  --glass:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-2);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 520px at 88% -6%, rgba(47,217,196,.16), transparent 62%),
    radial-gradient(760px 460px at -8% 78%, rgba(240,169,76,.10), transparent 60%),
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:auto,auto,48px 48px,48px 48px;
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .24s var(--ease);}
a:hover{color:var(--brand-soft);}
h1,h2,h3,h4{color:var(--text-1);margin:0;font-weight:700;letter-spacing:-.01em;}
h1{font-size:clamp(30px,4.4vw,50px);line-height:1.15;}
h2{font-size:clamp(23px,2.8vw,34px);line-height:1.25;}
h3{font-size:19px;line-height:1.4;}
p{margin:0 0 16px;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(47,217,196,.28);color:#fff;}

.container{
  width:100%;
  max-width:var(--container,1200px);
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:1600px){ .container{max-width:1280px;} }

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(8,13,20,.55);
  backdrop-filter:blur(12px) saturate(130%);
  border-bottom:1px solid transparent;
  transition:background .28s var(--ease),border-color .28s var(--ease);
}
.site-header.scrolled{
  background:rgba(8,13,20,.82);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom-color:var(--line);
}
.head-inner{
  height:72px;
  display:flex;
  align-items:center;
  gap:22px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand svg{flex:0 0 auto;}
.brand-name{
  font-size:17.5px;
  font-weight:700;
  color:var(--text-1);
  letter-spacing:.01em;
  white-space:nowrap;
}
.brand-name em{font-style:normal;color:var(--brand);}
.nav-links{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:8px;
  flex:1 1 auto;
}
.nav-links a{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:0;
  width:100%;
  height:2px;
  background:var(--brand);
  border-radius:2px;
  transform:translateX(-50%) scaleX(0);
  transform-origin:center;
  transition:transform .26s var(--ease);
}
.nav-links a:hover{color:var(--text-1);}
.nav-links a:hover::after{transform:translateX(-50%) scaleX(1);}
.nav-links a.active{color:var(--text-1);font-weight:600;}
.nav-links a.active::after{transform:translateX(-50%) scaleX(1);}
.head-right{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-pill{
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:38px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--glass);
  font-size:14px;
  color:var(--text-2);
  white-space:nowrap;
  transition:border-color .24s var(--ease),color .24s var(--ease),transform .24s var(--ease);
}
.nav-pill svg{stroke:var(--brand);}
.nav-pill .count{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:20px;
  height:20px;
  padding:0 5px;
  border-radius:999px;
  background:rgba(240,169,76,.14);
  color:var(--accent);
  font-size:11.5px;
  font-variant-numeric:tabular-nums;
  line-height:1;
}
.nav-pill:hover{border-color:var(--line-brand);color:var(--text-1);transform:translateY(-1px);}
.btn-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border:0;
  border-radius:999px;
  background:var(--brand);
  color:#06211E;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  white-space:nowrap;
  box-shadow:0 0 0 1px rgba(47,217,196,.35), 0 10px 32px -8px rgba(47,217,196,.5);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),filter .24s var(--ease),background .24s var(--ease);
}
.btn-brand:hover{
  color:#06211E;
  filter:brightness(1.06);
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(47,217,196,.45), 0 16px 40px -8px rgba(47,217,196,.6);
}
.btn-brand:active{background:var(--brand-deep);transform:none;box-shadow:0 0 0 1px rgba(47,217,196,.3), 0 8px 22px -10px rgba(47,217,196,.5);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-1);
  font-size:15px;
  font-weight:600;
  backdrop-filter:blur(16px) saturate(140%);
  transition:border-color .24s var(--ease),transform .24s var(--ease),color .24s var(--ease);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-soft);transform:translateY(-2px);}
.btn-ghost:active{transform:none;}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:12px;
  background:var(--glass);
  padding:0;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
  cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--text-1);border-radius:2px;transition:transform .24s var(--ease),opacity .24s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg);}
.nav-panel{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(8,13,20,.96);
  backdrop-filter:blur(18px);
  padding:8px 20px 20px;
}
.nav-panel.open{display:block;}
.panel-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:52px;
  font-size:16px;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.panel-link.active{color:var(--brand);}
.panel-link .meta{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.panel-cta{width:100%;margin-top:18px;}

/* ---------- breadcrumb ---------- */
.crumb{
  display:flex;
  align-items:center;
  gap:9px;
  flex-wrap:wrap;
  padding:24px 0 0;
  font-size:13px;
  letter-spacing:.02em;
  color:var(--text-3);
}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#43506A;}
.crumb .now{color:var(--text-2);}

/* ---------- category hero ---------- */
.cat-hero{
  position:relative;
  margin-top:24px;
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  background:var(--bg-1);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(620px 340px at 78% 0%, rgba(240,169,76,.18), transparent 64%);
  pointer-events:none;
}
.cat-hero-inner{
  position:relative;
  display:grid;
  grid-template-columns:1.35fr .95fr;
  gap:40px;
  align-items:center;
  padding:clamp(30px,4.2vw,54px);
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px;}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  background:rgba(240,169,76,.14);
  color:var(--accent);
  font-size:12px;
  letter-spacing:.06em;
  font-weight:600;
}
.chip.brand{background:rgba(47,217,196,.13);color:var(--brand);}
.cat-hero h1{margin-bottom:16px;}
.cat-hero h1 em{font-style:normal;color:var(--brand-soft);}
.lead{
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-2);
  max-width:62ch;
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:10px 26px;
  margin-top:24px;
  padding-top:22px;
  border-top:1px solid var(--line);
}
.hero-points li{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--text-2);
}
.hero-points svg{flex:0 0 auto;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.cat-hero-figure{
  position:relative;
  border-radius:var(--r-l);
  overflow:hidden;
  border:1px solid var(--line);
}
.cat-hero-figure img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.cat-hero-figure::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(8,13,20,0) 40%, rgba(8,13,20,.55));
}

/* ---------- section ---------- */
.section{padding:clamp(56px,7vw,104px) 0 0;}
.section-head{margin-bottom:34px;max-width:760px;}
.section-head .kicker{
  display:block;
  font-size:12px;
  letter-spacing:.12em;
  color:var(--brand);
  margin-bottom:12px;
}
.section-head p{margin-top:12px;color:var(--text-2);}

/* ---------- steps ---------- */
.steps-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:36px;
  align-items:start;
}
.step-list{
  position:relative;
  padding-left:34px;
}
.step-list::before{
  content:"";
  position:absolute;
  left:9px;
  top:10px;
  bottom:10px;
  width:1px;
  background:linear-gradient(180deg, rgba(47,217,196,.55), rgba(47,217,196,.12));
}
.step-item{position:relative;padding:0 0 30px;}
.step-item:last-child{padding-bottom:0;}
.step-item::before{
  content:"";
  position:absolute;
  left:-33px;
  top:9px;
  width:11px;
  height:11px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 0 4px rgba(47,217,196,.18), 0 0 12px rgba(47,217,196,.7);
}
.step-card{
  border:1px solid var(--line);
  border-radius:var(--r-l);
  background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);
  padding:24px 26px;
  box-shadow:var(--shadow);
  transition:border-color .26s var(--ease),transform .26s var(--ease),box-shadow .26s var(--ease);
}
.step-card:hover{border-color:var(--line-brand);transform:translateY(-3px);box-shadow:var(--shadow-hi);}
.step-num{
  font-size:13px;
  color:var(--accent);
  letter-spacing:.14em;
  font-variant-numeric:tabular-nums;
  font-weight:600;
}
.step-card h3{margin:8px 0 10px;font-size:19px;}
.step-card p{margin:0;font-size:15.5px;line-height:1.8;color:var(--text-2);}
.step-meta{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  margin-top:14px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
  letter-spacing:.02em;
  font-variant-numeric:tabular-nums;
}

/* ---------- sticky side ---------- */
.side-card{
  position:sticky;
  top:96px;
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);
  padding:26px;
  box-shadow:var(--shadow);
}
.side-card h3{font-size:18px;margin-bottom:16px;}
.side-list li{
  display:flex;
  gap:10px;
  padding:11px 0;
  border-bottom:1px solid var(--line);
  font-size:14.5px;
  color:var(--text-2);
}
.side-list li:last-child{border-bottom:0;}
.side-list svg{flex:0 0 auto;margin-top:5px;}
.side-card .btn-brand{width:100%;margin-top:18px;}
.side-note{
  margin-top:14px;
  font-size:13px;
  color:var(--text-3);
  line-height:1.7;
}

/* ---------- scene cards ---------- */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.scene-card{
  border:1px solid var(--line);
  border-radius:var(--r-l);
  background:var(--bg-1);
  overflow:hidden;
  display:grid;
  grid-template-columns:150px minmax(0,1fr);
  transition:border-color .26s var(--ease),transform .26s var(--ease);
}
.scene-card:hover{border-color:var(--line-brand);transform:translateY(-3px);}
.scene-card figure{margin:0;height:100%;}
.scene-card img{
  width:100%;
  height:100%;
  min-height:150px;
  object-fit:cover;
}
.scene-body{padding:22px 24px;}
.scene-body h3{font-size:18px;margin-bottom:8px;}
.scene-body p{font-size:14.5px;line-height:1.78;margin:0;color:var(--text-2);}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--r-l);
  background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);
  padding:22px 24px;
  transition:border-color .26s var(--ease),background .26s var(--ease);
}
.faq-item:hover{border-color:var(--line-brand);}
.faq-item h3{
  font-size:16.5px;
  font-weight:600;
  display:flex;
  gap:12px;
  align-items:flex-start;
  margin-bottom:10px;
}
.faq-item h3 .plus{
  flex:0 0 auto;
  width:22px;
  height:22px;
  border-radius:50%;
  border:1px solid var(--line-brand);
  color:var(--brand);
  font-size:14px;
  line-height:20px;
  text-align:center;
  font-weight:400;
}
.faq-item p{margin:0;font-size:15px;line-height:1.8;color:var(--text-2);}

/* ---------- cta ---------- */
.cta-band{
  position:relative;
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);
  overflow:hidden;
  padding:clamp(30px,4vw,52px);
  display:grid;
  grid-template-columns:1.4fr .9fr;
  gap:34px;
  align-items:center;
  box-shadow:var(--shadow);
  margin-top:clamp(56px,7vw,104px);
}
.cta-band::before,
.cta-band::after{
  content:"";
  position:absolute;
  width:420px;
  height:420px;
  border-radius:50%;
  pointer-events:none;
}
.cta-band::before{left:-140px;top:-160px;background:radial-gradient(closest-side, rgba(47,217,196,.20), transparent);}
.cta-band::after{right:-160px;bottom:-200px;background:radial-gradient(closest-side, rgba(240,169,76,.16), transparent);}
.cta-band > *{position:relative;}
.cta-band h2{margin-bottom:12px;}
.cta-band p{margin:0;font-size:15.5px;color:var(--text-2);}
.cta-actions{display:flex;flex-direction:column;gap:12px;align-items:stretch;}
.cta-actions .btn-brand,
.cta-actions .btn-ghost{width:100%;}
.cta-foot{font-size:13px;color:var(--text-3);margin-top:6px;text-align:center;}

/* ---------- footer ---------- */
.site-footer{
  margin-top:clamp(64px,8vw,120px);
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:56px 0 26px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:34px;
}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-brand .brand-name{font-size:17px;}
.foot-about{font-size:14px;line-height:1.8;color:var(--text-2);margin:0;max-width:34ch;}
.foot-col h4{font-size:15px;margin-bottom:16px;color:var(--text-1);}
.foot-col ul li{margin-bottom:10px;}
.foot-col a{font-size:14px;color:var(--text-2);}
.foot-col a:hover{color:var(--brand);}
.foot-col p{font-size:14px;line-height:1.8;color:var(--text-2);}
.foot-bottom{
  margin-top:40px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.foot-bottom p{margin:0;font-size:13px;color:var(--text-3);letter-spacing:.02em;}
.foot-bottom .links{display:flex;gap:20px;flex-wrap:wrap;}
.foot-bottom .links a{font-size:13px;color:var(--text-3);}
.foot-bottom .links a:hover{color:var(--brand);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .nav-links{gap:18px;}
  .nav-links a{font-size:14.5px;}
  .steps-layout{grid-template-columns:minmax(0,1fr) 300px;gap:26px;}
}
@media (max-width:1024px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .nav-pill{display:none;}
  .cat-hero-inner{grid-template-columns:1fr;gap:28px;}
  .steps-layout{grid-template-columns:1fr;}
  .side-card{position:static;}
  .cta-band{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  body{font-size:15.5px;line-height:1.85;}
  .head-inner{height:60px;gap:14px;}
  .brand-name{font-size:16px;}
  .head-right .btn-brand{display:none;}
  .scene-grid{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;}
  .scene-card{grid-template-columns:1fr;}
  .scene-card img{min-height:170px;aspect-ratio:16/10;}
  .section-head{margin-bottom:26px;}
  .step-list{padding-left:28px;}
  .step-item::before{left:-27px;}
  .step-card{padding:20px;}
  .foot-grid{grid-template-columns:1fr;gap:24px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .cat-hero-inner{padding:24px 20px 28px;}
  .hero-points{gap:10px;flex-direction:column;align-items:flex-start;}
  .hero-actions .btn-brand,
  .hero-actions .btn-ghost{width:100%;}
  .cta-band{padding:26px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
}

/* roulang page: category3 */
:root{
  --bg-0:#080D14;
  --bg-1:#0D141F;
  --bg-2:#131C2B;
  --brand:#2FD9C4;
  --brand-deep:#1FB6A6;
  --brand-soft:#A8F3E8;
  --accent:#F0A94C;
  --text-1:#EEF4FB;
  --text-2:#A7B4C6;
  --text-3:#6B7A8F;
  --line:rgba(255,255,255,.09);
  --line-brand:rgba(47,217,196,.38);
  --r-sm:12px;
  --r-md:14px;
  --r-lg:18px;
  --r-xl:24px;
  --shadow-card:0 1px 0 rgba(255,255,255,.06) inset, 0 20px 60px -24px rgba(0,0,0,.8);
  --shadow-hover:0 1px 0 rgba(255,255,255,.08) inset, 0 28px 68px -26px rgba(0,0,0,.9);
  --ease:cubic-bezier(.22,.61,.36,1);
  --section-pad:clamp(56px,7vw,104px);
}

*,*::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","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-2);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 520px at 88% -8%, rgba(47,217,196,.16), transparent 65%),
    radial-gradient(760px 480px at -10% 76%, rgba(240,169,76,.10), transparent 66%),
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:auto,auto,48px 48px,48px 48px;
  background-attachment:fixed,fixed,scroll,scroll;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .24s var(--ease);}
a:hover{color:var(--brand-soft);}
h1,h2,h3,h4{color:var(--text-1);margin:0;font-weight:700;line-height:1.25;}
h1{font-size:clamp(30px,4.4vw,50px);line-height:1.15;letter-spacing:-.01em;}
h2{font-size:clamp(23px,2.8vw,34px);}
h3{font-size:19px;line-height:1.4;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:1600px){.container{max-width:1280px;}}

/* ============ 通用区块 ============ */
.section{padding:var(--section-pad) 0;}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{margin-bottom:clamp(28px,3.6vw,48px);max-width:760px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.12em;color:var(--brand);margin-bottom:12px;}
.eyebrow.amber{color:var(--accent);}
.section-head h2{margin-bottom:12px;}
.section-head p{font-size:15.5px;color:var(--text-2);margin:0;}
.section-head.split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;color:var(--brand);white-space:nowrap;}
.text-link:hover{color:var(--brand-soft);text-decoration:underline;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(8,13,20,.55);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .28s var(--ease),border-color .28s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(8,13,20,.82);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom-color:var(--line);
}
.head-inner{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand svg{display:block;}
.brand-name{font-size:17px;font-weight:700;color:var(--text-1);letter-spacing:.01em;white-space:nowrap;}
.brand-name em{font-style:normal;color:var(--brand);}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{position:relative;display:inline-block;padding:8px 12px;font-size:15px;color:var(--text-2);border-radius:10px;}
.nav-links a::after{content:"";position:absolute;bottom:2px;left:50%;right:50%;height:2px;background:var(--brand);transition:left .26s var(--ease),right .26s var(--ease);}
.nav-links a:hover{color:var(--text-1);}
.nav-links a:hover::after,.nav-links a.active::after{left:12px;right:12px;}
.nav-links a.active{color:var(--text-1);}
.head-right{display:flex;align-items:center;gap:10px;}
.nav-pill{
  display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 14px;
  border-radius:999px;border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  color:var(--text-2);font-size:14px;
  transition:border-color .24s var(--ease),color .24s var(--ease),transform .24s var(--ease);
}
.nav-pill svg{fill:none;stroke:var(--brand);}
.nav-pill:hover{color:var(--text-1);border-color:var(--line-brand);transform:translateY(-1px);}
.nav-pill .count{
  display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 6px;
  border-radius:999px;background:rgba(240,169,76,.16);color:var(--accent);
  font-size:12px;font-variant-numeric:tabular-nums;
}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 22px;
  border:0;border-radius:999px;background:var(--brand);color:#06211E;
  font-size:15px;font-weight:700;white-space:nowrap;
  box-shadow:0 0 0 1px rgba(47,217,196,.35),0 10px 32px -8px rgba(47,217,196,.5);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),filter .24s var(--ease),background .24s var(--ease);
}
.btn-brand:hover{color:#06211E;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(47,217,196,.45),0 16px 42px -8px rgba(47,217,196,.58);}
.btn-brand:active{background:var(--brand-deep);transform:none;box-shadow:0 0 0 1px rgba(47,217,196,.3),0 6px 18px -8px rgba(47,217,196,.45);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 22px;
  border:1px solid var(--line);border-radius:999px;
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  color:var(--text-1);font-size:15px;font-weight:600;
  transition:border-color .24s var(--ease),transform .24s var(--ease),color .24s var(--ease);
}
.btn-ghost:hover{color:var(--text-1);border-color:var(--line-brand);transform:translateY(-2px);}
.btn-ghost:active{transform:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--text-1);border-radius:2px;transition:transform .26s var(--ease),opacity .26s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg);}
.nav-panel{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(8,13,20,.96);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  padding:8px 20px 22px;
}
.nav-panel.open{display:block;}
.panel-link{display:flex;align-items:center;justify-content:space-between;height:52px;padding:0 4px;border-bottom:1px solid var(--line);font-size:16px;color:var(--text-2);}
.panel-link:last-of-type{border-bottom:0;}
.panel-link.active{color:var(--brand);}
.panel-link .meta{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.panel-cta{width:100%;margin-top:16px;}

@media (max-width:1099px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .head-right{margin-left:auto;}
}
@media (max-width:991px){
  .nav-pill{display:none;}
  .brand-name{font-size:16px;}
  .head-inner{height:60px;}
}
@media (max-width:575px){
  .head-right .btn-brand{height:40px;padding:0 16px;font-size:14px;}
  .brand-name{font-size:15px;}
}

/* ============ 页头 ============ */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--bg-1);
  border-bottom:1px solid var(--line);
  padding:clamp(34px,5vw,60px) 0 clamp(46px,6vw,86px);
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(700px 420px at 84% 4%, rgba(47,217,196,.16), transparent 62%),
    radial-gradient(620px 400px at 8% 96%, rgba(240,169,76,.09), transparent 66%);
}
.page-hero .container{position:relative;z-index:1;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);letter-spacing:.02em;margin-bottom:22px;}
.crumbs a{color:var(--text-3);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:rgba(255,255,255,.18);}
.crumbs .now{color:var(--text-2);}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:clamp(28px,4vw,56px);align-items:center;}
.page-hero h1{margin-bottom:18px;}
.page-hero .lead{font-size:16px;color:var(--text-2);max-width:640px;margin-bottom:22px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 13px;border-radius:999px;
  font-size:13px;color:var(--text-2);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  transition:border-color .24s var(--ease),color .24s var(--ease);
}
.tag:hover{color:var(--text-1);border-color:var(--line-brand);}
.hero-figure{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  background:var(--bg-2);
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease);}
.hero-figure:hover img{transform:scale(1.03);}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,13,20,0) 42%,rgba(8,13,20,.62) 100%);
  pointer-events:none;
}
.hero-figure .fig-cap{
  position:absolute;left:18px;right:18px;bottom:14px;z-index:1;
  font-size:13px;color:var(--text-2);letter-spacing:.02em;
}
@media (max-width:991px){
  .hero-grid{grid-template-columns:1fr;}
  .hero-figure{order:-1;}
}

/* ============ 速览条 ============ */
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:0;}
.fact{padding:6px 28px;}
.fact:first-child{padding-left:0;}
.fact:last-child{padding-right:0;}
.fact + .fact{border-left:1px solid var(--line);}
.fact h3{font-size:16px;margin-bottom:8px;}
.fact h3 span{color:var(--brand);margin-right:8px;font-variant-numeric:tabular-nums;}
.fact p{font-size:14.5px;color:var(--text-3);margin:0;line-height:1.75;}
@media (max-width:767px){
  .facts{grid-template-columns:1fr;gap:22px;}
  .fact{padding:0;}
  .fact + .fact{border-left:0;border-top:1px solid var(--line);padding-top:22px;}
}

/* ============ 清单卡 ============ */
.check-card{
  position:relative;display:flex;flex-direction:column;gap:12px;height:100%;
  padding:28px;border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-card);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.check-card::before{
  content:"";position:absolute;top:0;left:16px;right:16px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.32),transparent);
}
.check-card:hover{transform:translateY(-3px);border-color:var(--line-brand);box-shadow:var(--shadow-hover);}
.check-ico{
  width:44px;height:44px;border-radius:var(--r-md);
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(47,217,196,.10);border:1px solid var(--line-brand);
}
.check-ico svg{fill:none;stroke:var(--brand);}
.check-card h3{font-size:19px;}
.check-card > p{font-size:15px;color:var(--text-2);margin:0;line-height:1.78;}
.mini-list{display:grid;gap:8px;margin-top:2px;}
.mini-list li{display:flex;gap:8px;align-items:flex-start;font-size:14px;color:var(--text-3);line-height:1.7;}
.mini-list li svg{flex:0 0 auto;margin-top:5px;fill:none;stroke:var(--brand);}
.check-more{display:inline-flex;align-items:center;gap:6px;margin-top:auto;padding-top:10px;font-size:14px;color:var(--brand);}
.check-more svg{fill:none;stroke:currentColor;transition:transform .24s var(--ease);}
.check-card:hover .check-more svg{transform:translateX(4px);}
@media (min-width:768px){
  .check-grid > [class*="col-"]:nth-child(even) .check-card{margin-top:28px;}
}

/* ============ 步骤 ============ */
.steps{position:relative;display:grid;gap:26px;padding-left:34px;}
.steps::before{content:"";position:absolute;left:9px;top:8px;bottom:8px;width:1px;background:linear-gradient(180deg,var(--line-brand),rgba(47,217,196,.06));}
.step{position:relative;}
.step::before{
  content:"";position:absolute;left:-34px;top:8px;width:11px;height:11px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 0 4px rgba(47,217,196,.18),0 0 14px rgba(47,217,196,.75);
}
.step h3{font-size:18px;margin-bottom:8px;}
.step h3 i{font-style:normal;color:var(--brand);margin-right:10px;font-variant-numeric:tabular-nums;}
.step p{font-size:15px;color:var(--text-2);margin:0;line-height:1.8;}
.summary-card{
  padding:26px;border-radius:var(--r-xl);border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.summary-card h3{font-size:17px;margin-bottom:14px;}
.summary-card li{display:flex;gap:9px;align-items:flex-start;font-size:14.5px;color:var(--text-2);padding:9px 0;border-bottom:1px solid var(--line);line-height:1.7;}
.summary-card li:last-of-type{border-bottom:0;}
.summary-card li svg{flex:0 0 auto;margin-top:6px;fill:none;stroke:var(--brand);}
.summary-card .btn-ghost{width:100%;margin-top:18px;}
@media (min-width:992px){
  .sticky-col{position:sticky;top:96px;}
}

/* ============ 表格 ============ */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  background:var(--bg-1);box-shadow:var(--shadow-card);
}
.table-scroll{overflow-x:auto;}
table.cmp{width:100%;border-collapse:collapse;min-width:620px;}
table.cmp th{
  text-align:left;font-size:14px;font-weight:600;color:var(--brand);
  padding:16px 20px;background:var(--bg-2);border-bottom:1px solid var(--line);
  letter-spacing:.02em;white-space:nowrap;
}
table.cmp td{padding:16px 20px;font-size:14.8px;color:var(--text-2);border-bottom:1px solid var(--line);vertical-align:top;}
table.cmp tbody tr:nth-child(odd){background:rgba(19,28,43,.55);}
table.cmp tbody tr:nth-child(even){background:rgba(13,20,31,.55);}
table.cmp tbody tr:last-child td{border-bottom:0;}
table.cmp td strong{color:var(--text-1);font-weight:600;}
table.cmp td .path{color:var(--accent);font-size:13.5px;letter-spacing:.02em;}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:10px;max-width:900px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  background: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%);
  transition:border-color .26s var(--ease),background .26s var(--ease);
}
.faq-item[open]{border-color:var(--line-brand);background:linear-gradient(160deg,rgba(255,255,255,.09),rgba(255,255,255,.03));}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;cursor:pointer;list-style:none;
  font-size:16.5px;font-weight:600;color:var(--text-1);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-ico{position:relative;flex:0 0 auto;width:18px;height:18px;transition:transform .28s var(--ease);}
.faq-ico::before,.faq-ico::after{content:"";position:absolute;background:var(--brand);border-radius:2px;}
.faq-ico::before{left:0;top:8px;width:18px;height:2px;}
.faq-ico::after{left:8px;top:0;width:2px;height:18px;}
.faq-item[open] .faq-ico{transform:rotate(45deg);}
.faq-body{padding:0 22px 20px 19px;font-size:15px;color:var(--text-2);border-left:3px solid var(--brand);margin-left:22px;padding-right:22px;}
.faq-body p{margin:0;line-height:1.85;}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  padding:clamp(30px,4.4vw,56px);
  border-radius:var(--r-xl);border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.02));
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.cta-band::before,.cta-band::after{content:"";position:absolute;pointer-events:none;border-radius:50%;}
.cta-band::before{width:420px;height:420px;left:-140px;top:-180px;background:radial-gradient(circle,rgba(47,217,196,.18),transparent 66%);}
.cta-band::after{width:380px;height:380px;right:-130px;bottom:-190px;background:radial-gradient(circle,rgba(240,169,76,.13),transparent 68%);}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.35fr .65fr;gap:28px;align-items:center;}
.cta-inner h2{margin-bottom:12px;}
.cta-inner p{font-size:15px;color:var(--text-2);margin:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}
@media (max-width:767px){
  .cta-inner{grid-template-columns:1fr;}
  .cta-actions{justify-content:flex-start;}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:clamp(44px,5vw,68px) 0 0;margin-top:0;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:40px;}
.foot-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-about{font-size:14px;color:var(--text-3);line-height:1.8;margin:0;max-width:320px;}
.foot-col h4{font-size:15px;color:var(--text-1);margin-bottom:16px;font-weight:600;}
.foot-col ul{display:grid;gap:10px;}
.foot-col li a{font-size:14px;color:var(--text-2);}
.foot-col li a:hover{color:var(--brand);}
.foot-col p{font-size:14px;color:var(--text-3);line-height:1.8;margin:0 0 10px;}
.foot-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding:20px 0 26px;border-top:1px solid var(--line);
}
.foot-bottom p{font-size:13px;color:var(--text-3);margin:0;}
.foot-bottom .links{display:flex;flex-wrap:wrap;gap:18px;}
.foot-bottom .links a{font-size:13px;color:var(--text-3);}
.foot-bottom .links a:hover{color:var(--brand);}
@media (max-width:991px){
  .foot-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:575px){
  .foot-grid{grid-template-columns:1fr;gap:26px;}
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --bg-0:#080D14;
  --bg-1:#0D141F;
  --bg-2:#131C2B;
  --brand:#2FD9C4;
  --brand-deep:#1FB6A6;
  --brand-soft:#A8F3E8;
  --accent:#F0A94C;
  --text-1:#EEF4FB;
  --text-2:#A7B4C6;
  --text-3:#6B7A8F;
  --line:rgba(255,255,255,.09);
  --line-brand:rgba(47,217,196,.38);
  --danger:#F06B5A;
  --r-sm:14px;
  --r-md:18px;
  --r-lg:24px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --sh-card:0 1px 0 rgba(255,255,255,.06) inset, 0 20px 60px -24px rgba(0,0,0,.8);
  --glass:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:48px 48px;
  pointer-events:none;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(900px 520px at 88% 4%, rgba(47,217,196,.16), transparent 70%),
    radial-gradient(760px 520px at 4% 88%, rgba(240,169,76,.10), transparent 72%);
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .24s var(--ease);}
a:hover{color:var(--brand-soft);}
h1,h2,h3,h4{color:var(--text-1);margin:0;font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{width:100%;max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto;}
@media (min-width:1600px){.container{max-width:1280px;}}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(8,13,20,.55);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background .28s var(--ease), border-color .28s var(--ease);
}
.site-header.scrolled{background:rgba(8,13,20,.86);border-bottom-color:var(--line-brand);}
.head-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-name{font-size:17px;font-weight:700;color:var(--text-1);letter-spacing:-.01em;}
.brand-name em{font-style:normal;color:var(--brand);}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:12px;}
.nav-links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 12px;
  font-size:15px;
  color:var(--text-2);
  border-radius:10px;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:4px;
  height:2px;
  background:var(--brand);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .26s var(--ease);
}
.nav-links a:hover{color:var(--text-1);}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);}
.nav-links a.active{color:var(--text-1);}
.head-right{margin-left:auto;display:flex;align-items:center;gap:10px;}
.nav-pill{
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:40px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-2);
  font-size:14px;
  white-space:nowrap;
  transition:all .26s var(--ease);
}
.nav-pill svg{stroke:var(--text-3);transition:stroke .26s var(--ease);}
.nav-pill:hover{border-color:var(--line-brand);color:var(--text-1);transform:translateY(-1px);}
.nav-pill:hover svg{stroke:var(--brand);}
.nav-pill .count{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:20px;
  height:20px;
  padding:0 5px;
  border-radius:999px;
  background:rgba(240,169,76,.16);
  color:var(--accent);
  font-size:12px;
  font-variant-numeric:tabular-nums;
}
.btn-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border:0;
  border-radius:999px;
  background:var(--brand);
  color:#06211E;
  font-size:15px;
  font-weight:700;
  white-space:nowrap;
  cursor:pointer;
  box-shadow:0 0 0 1px rgba(47,217,196,.35), 0 10px 32px -8px rgba(47,217,196,.5);
  transition:transform .26s var(--ease), filter .26s var(--ease), box-shadow .26s var(--ease), background .2s var(--ease);
}
.btn-brand:hover{filter:brightness(1.06);transform:translateY(-2px);color:#06211E;box-shadow:0 0 0 1px rgba(47,217,196,.5), 0 16px 44px -8px rgba(47,217,196,.62);}
.btn-brand:active{background:var(--brand-deep);transform:none;box-shadow:0 0 0 1px rgba(47,217,196,.3), 0 6px 18px -8px rgba(47,217,196,.4);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-1);
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:all .26s var(--ease);
}
.btn-ghost:hover{border-color:var(--line-brand);color:var(--text-1);transform:translateY(-2px);}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  padding:0;
  cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:1.6px;margin:3.4px auto;background:var(--text-1);border-radius:2px;transition:transform .26s var(--ease),opacity .2s var(--ease);}
.nav-toggle.open span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}
.nav-panel{
  position:fixed;
  inset:60px 0 0 0;
  background:rgba(8,13,20,.97);
  backdrop-filter:blur(18px);
  padding:16px 24px 32px;
  display:none;
  flex-direction:column;
  overflow-y:auto;
  z-index:1029;
}
.nav-panel.open{display:flex;}
.panel-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:52px;
  font-size:16px;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.panel-link.active{color:var(--brand);}
.panel-link .meta{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.panel-cta{margin-top:auto;width:100%;}

/* ---------- 面包屑 ---------- */
.crumbs{padding:24px 0 0;font-size:13px;color:var(--text-3);letter-spacing:.02em;}
.crumbs a{color:var(--text-3);}
.crumbs a:hover{color:var(--brand);}
.crumbs span.sep{margin:0 8px;color:var(--text-3);}
.crumbs .now{color:var(--text-2);}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;
  padding:clamp(28px,3.6vw,44px) 0 clamp(48px,5.6vw,80px);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-head::before{
  content:"";
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.07;
  pointer-events:none;
}
.page-head::after{
  content:"";
  position:absolute;
  right:-14%;
  top:-46%;
  width:640px;
  height:640px;
  background:radial-gradient(circle, rgba(47,217,196,.07), transparent 68%);
  pointer-events:none;
}
.page-head > .container{position:relative;z-index:2;}
.tag-line{
  display:inline-block;
  font-size:12px;
  letter-spacing:.12em;
  color:var(--accent);
  padding:4px 12px;
  border-radius:999px;
  background:rgba(240,169,76,.14);
  margin-bottom:16px;
}
.page-head h1{
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.15;
  letter-spacing:-.01em;
  margin-bottom:18px;
}
.lead-text{font-size:16.5px;line-height:1.9;color:var(--text-2);max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:20px;margin-top:26px;font-size:13px;color:var(--text-3);}
.hero-facts span{display:inline-flex;align-items:center;gap:8px;}
.hero-facts svg{stroke:var(--brand);flex-shrink:0;}
.head-figure{
  border:1px solid var(--line);
  border-radius:20px;
  overflow:hidden;
  background:var(--bg-2);
  box-shadow:var(--sh-card);
}
.head-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}

/* ---------- 数据条 ---------- */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);
  overflow:hidden;
  box-shadow:var(--sh-card);
}
.stat-item{padding:30px 26px;border-right:1px solid var(--line);}
.stat-item:last-child{border-right:0;}
.stat-num{
  font-size:clamp(28px,3vw,38px);
  font-weight:700;
  color:var(--brand);
  line-height:1.1;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}
.stat-num i{font-style:normal;font-size:15px;color:var(--text-3);margin-left:6px;font-weight:600;}
.stat-label{margin-top:10px;font-size:14px;color:var(--text-2);}

/* ---------- 通用板块 ---------- */
.section{padding:clamp(56px,7vw,104px) 0;}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{margin-bottom:38px;max-width:720px;}
.sec-head .kicker{font-size:12px;letter-spacing:.12em;color:var(--brand);margin-bottom:12px;display:block;}
.sec-head h2{font-size:clamp(23px,2.8vw,34px);line-height:1.25;margin-bottom:12px;}
.sec-head p{color:var(--text-2);font-size:16px;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;align-items:start;}
.faq-accordion{
  display:flex;
  flex-direction:column;
  gap:10px;
  --bs-accordion-bg:transparent;
  --bs-accordion-border-color:transparent;
  --bs-accordion-border-radius:0;
  --bs-accordion-inner-border-radius:0;
  --bs-accordion-btn-color:var(--text-1);
  --bs-accordion-btn-bg:transparent;
  --bs-accordion-btn-focus-box-shadow:none;
  --bs-accordion-active-color:var(--text-1);
  --bs-accordion-active-bg:rgba(47,217,196,.05);
  --bs-accordion-body-color:var(--text-2);
  --bs-accordion-body-font-size:15px;
}
.faq-accordion .accordion-item{
  position:relative;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--sh-card);
  transition:border-color .26s var(--ease), transform .26s var(--ease);
}
.faq-accordion .accordion-item:hover{border-color:var(--line-brand);}
.faq-accordion .accordion-item::after{
  content:"";
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:3px;
  background:var(--brand);
  opacity:0;
  transition:opacity .26s var(--ease);
}
.faq-accordion .accordion-item:has(.accordion-button:not(.collapsed))::after{opacity:1;}
.faq-accordion .accordion-button{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:18px 52px 18px 20px;
  font-size:16.5px;
  font-weight:600;
  line-height:1.55;
  border:0;
  transition:background .26s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed){background:rgba(47,217,196,.05);}
.faq-accordion .accordion-button::after{
  content:"";
  position:absolute;
  right:20px;
  top:22px;
  width:16px;
  height:16px;
  margin:0;
  background-image:
    linear-gradient(var(--brand),var(--brand)),
    linear-gradient(var(--brand),var(--brand));
  background-size:14px 1.6px, 1.6px 14px;
  background-position:center, center;
  background-repeat:no-repeat;
  transform:none;
  transition:transform .28s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.faq-num{
  flex-shrink:0;
  font-size:12px;
  color:var(--accent);
  letter-spacing:.06em;
  font-variant-numeric:tabular-nums;
  padding-top:4px;
}
.faq-accordion .accordion-body{
  padding:0 20px 20px 20px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  border-top:1px solid var(--line);
  padding-top:16px;
  margin-top:0;
}
.faq-accordion .accordion-collapse{border:0;}

/* ---------- 处理路径 ---------- */
.path-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);}
.step-item{
  position:relative;
  padding:32px 26px 0 0;
  border-right:1px solid var(--line);
}
.step-item:last-child{border-right:0;padding-right:0;}
.step-item .dot{
  position:absolute;
  top:-5px;
  left:0;
  width:9px;
  height:9px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 0 4px rgba(47,217,196,.16);
}
.step-num{
  display:inline-block;
  font-size:12px;
  letter-spacing:.12em;
  color:var(--brand);
  margin-left:22px;
  font-variant-numeric:tabular-nums;
}
.step-item h3{font-size:19px;line-height:1.4;margin:10px 0 10px 22px;}
.step-item p{font-size:15px;line-height:1.8;color:var(--text-2);margin-left:22px;padding-right:18px;}

/* ---------- 表单 ---------- */
.form-panel{
  position:relative;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);
  padding:clamp(26px,3.4vw,44px);
  box-shadow:var(--sh-card);
  overflow:hidden;
}
.form-panel::before{
  content:"";
  position:absolute;
  left:-120px;
  bottom:-160px;
  width:420px;
  height:420px;
  background:radial-gradient(circle, rgba(47,217,196,.14), transparent 68%);
  pointer-events:none;
}
.form-panel::after{
  content:"";
  position:absolute;
  right:-120px;
  top:-160px;
  width:400px;
  height:400px;
  background:radial-gradient(circle, rgba(240,169,76,.10), transparent 68%);
  pointer-events:none;
}
.form-panel > *{position:relative;z-index:2;}
.form-label{font-size:14px;color:var(--text-2);margin-bottom:8px;}
.form-control,.form-select{
  width:100%;
  height:48px;
  padding:0 16px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:var(--bg-2);
  color:var(--text-1);
  font-size:15px;
  transition:border-color .24s var(--ease), box-shadow .24s var(--ease);
}
.form-control::placeholder{color:var(--text-3);}
.form-select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 16 16'%3E%3Cpath d='M3 6l5 5 5-5' fill='none' stroke='%236B7A8F' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;appearance:none;}
textarea.form-control{height:auto;min-height:132px;padding:14px 16px;line-height:1.75;resize:vertical;}
.form-control:focus,.form-select:focus,.form-control:focus-visible,.form-select:focus-visible{
  outline:none;
  border-color:var(--brand);
  background:var(--bg-2);
  color:var(--text-1);
  box-shadow:0 0 0 3px rgba(47,217,196,.18);
}
.form-note{font-size:13px;color:var(--text-3);margin-top:14px;}
.form-note a{color:var(--text-2);text-decoration:underline;}
.form-note a:hover{color:var(--brand);}
.form-msg{
  display:none;
  margin-top:16px;
  padding:14px 16px;
  border-radius:var(--r-sm);
  border:1px solid var(--line-brand);
  background:rgba(47,217,196,.08);
  color:var(--text-1);
  font-size:14px;
}
.form-msg.show{display:block;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);
  padding:clamp(28px,3.6vw,48px);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  overflow:hidden;
  box-shadow:var(--sh-card);
}
.cta-band::before{
  content:"";
  position:absolute;
  left:-140px;
  top:-180px;
  width:460px;
  height:460px;
  background:radial-gradient(circle, rgba(47,217,196,.16), transparent 68%);
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;margin-bottom:10px;}
.cta-band p{font-size:15px;color:var(--text-2);max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex-shrink:0;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:clamp(56px,7vw,104px);background:var(--bg-1);border-top:1px solid var(--line);padding:clamp(44px,5vw,68px) 0 26px;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px;}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-brand .brand-name{font-size:16px;}
.foot-about{font-size:14px;line-height:1.8;color:var(--text-2);max-width:320px;}
.foot-col h4{font-size:15px;margin-bottom:16px;color:var(--text-1);}
.foot-col ul li{margin-bottom:10px;}
.foot-col ul a{font-size:14px;color:var(--text-2);}
.foot-col ul a:hover{color:var(--brand);}
.foot-col p{font-size:14px;color:var(--text-2);line-height:1.8;max-width:320px;}
.foot-col p a{text-decoration:underline;}
.foot-bottom{
  margin-top:38px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.foot-bottom p{font-size:13px;color:var(--text-3);}
.foot-bottom .links{display:flex;gap:18px;flex-wrap:wrap;}
.foot-bottom .links a{font-size:13px;color:var(--text-3);}
.foot-bottom .links a:hover{color:var(--brand);}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease), transform .6s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .nav-links{gap:2px;}
  .nav-links a{padding:0 9px;font-size:14.5px;}
  .nav-pill{padding:0 11px;font-size:13.5px;}
  .foot-grid{grid-template-columns:1.3fr 1fr 1fr;gap:28px;}
}
@media (max-width:991.98px){
  .nav-links,.head-right .nav-pill{display:none;}
  .nav-toggle{display:block;}
  .head-right{gap:8px;}
  .head-right .btn-brand{height:40px;padding:0 16px;font-size:14px;}
  .head-inner{height:60px;}
  .nav-panel{inset:60px 0 0 0;}
  .faq-grid{grid-template-columns:1fr;}
  .path-steps{grid-template-columns:1fr;border-top:0;}
  .step-item{border-right:0;border-top:1px solid var(--line);padding:26px 0 0;}
  .step-item:first-child{padding-top:22px;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .foot-grid{grid-template-columns:1fr 1fr;}
  .stat-strip{grid-template-columns:1fr;}
  .stat-item{border-right:0;border-bottom:1px solid var(--line);}
  .stat-item:last-child{border-bottom:0;}
}
@media (max-width:575.98px){
  body{font-size:15.5px;line-height:1.85;}
  .container{padding-left:18px;padding-right:18px;}
  .page-head h1{font-size:28px;}
  .lead-text{font-size:15.5px;}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%;}
  .faq-accordion .accordion-button{font-size:15.5px;padding:16px 46px 16px 16px;}
  .faq-accordion .accordion-button::after{right:16px;top:20px;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .reveal{opacity:1;transform:none;}
}