/* roulang page: index */
:root{
  --bg-deep:#071626;
  --bg-deep-2:#0B2033;
  --panel-glass:rgba(18,42,64,.55);
  --panel-solid:rgba(11,32,51,.86);
  --primary:#1FC8A9;
  --primary-glow:rgba(31,200,169,.45);
  --accent:#FFB25B;
  --accent-2:#FF7A6B;
  --text-1:#EAF3FA;
  --text-2:#A7BDD0;
  --text-3:#6B8598;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(31,200,169,.35);
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 2px 10px rgba(0,0,0,.25);
  --sh-2:0 12px 32px rgba(0,0,0,.38);
  --sh-glow:0 0 0 1px rgba(31,200,169,.35),0 8px 28px rgba(31,200,169,.28);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:var(--bg-deep);
  background-image:
    radial-gradient(900px 480px at 78% -8%,rgba(31,200,169,.16),transparent 62%),
    radial-gradient(700px 420px at 6% 12%,rgba(255,178,91,.10),transparent 60%),
    linear-gradient(180deg,#071626 0%,#08192A 48%,#071626 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.30;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,22,38,.82);
  backdrop-filter:blur(16px) saturate(130%);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,200,169,.55),rgba(255,178,91,.45),transparent);
}
.nav-wrap{
  display:flex;align-items:center;gap:18px;
  min-height:72px;padding:10px 20px;
  max-width:1240px;margin:0 auto;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand__mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(145deg,rgba(31,200,169,.28),rgba(255,178,91,.16));
  border:1px solid var(--line-strong);
  display:grid;place-items:center;
  box-shadow:0 0 0 1px rgba(31,200,169,.14),0 6px 18px rgba(0,0,0,.35);
}
.brand__mark svg{width:22px;height:22px;}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__text b{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--text-1);}
.brand__text b i{font-style:normal;color:var(--primary);}
.brand__text span{font-size:11px;color:var(--text-3);letter-spacing:.14em;}
.nav-panel{
  flex:1 1 auto;display:flex;align-items:center;gap:6px;
  background:var(--panel-glass);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:8px;
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh-1);
  min-width:0;
}
.nav-chip{
  display:flex;align-items:center;gap:8px;
  padding:9px 12px;border-radius:var(--r-s);
  font-size:14px;color:var(--text-2);white-space:nowrap;
  position:relative;transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
  border:1px solid transparent;
}
.nav-chip svg{width:18px;height:18px;flex:0 0 auto;stroke:currentColor;opacity:.9;}
.nav-chip:hover{background:rgba(31,200,169,.12);border-color:var(--line-strong);color:var(--text-1);}
.nav-chip.is-active{color:var(--primary);background:rgba(31,200,169,.10);border-color:var(--line-strong);}
.nav-chip.is-active::before{
  content:"";position:absolute;left:-1px;top:8px;bottom:8px;width:3px;border-radius:3px;background:var(--primary);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-m);border:1px solid transparent;
  padding:14px 28px;font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;text-align:center;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,color .2s ease-out,border-color .2s ease-out,filter .2s ease-out;
}
.btn--primary{background:var(--primary);color:#04141F;box-shadow:var(--sh-glow);}
.btn--primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(31,200,169,.4),0 10px 34px rgba(31,200,169,.45);}
.btn--primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(31,200,169,.35),0 4px 14px rgba(31,200,169,.28);}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--text-1);}
.btn--ghost:hover{background:rgba(31,200,169,.10);border-color:var(--primary);}
.btn--sm{padding:11px 18px;font-size:14px;border-radius:var(--r-m);}
.btn--block{width:100%;}
.link-btn{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:14px;font-weight:600;
}
.link-btn span{transition:transform .2s ease-out;}
.link-btn:hover span{transform:translateX(3px);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-m);
  background:var(--panel-glass);border:1px solid var(--line);
  cursor:pointer;padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;position:relative;transition:.2s ease-out;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-1);border-radius:2px;transition:.2s ease-out;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}

.drawer{
  display:none;position:fixed;inset:72px 0 0 0;z-index:55;
  background:rgba(7,22,38,.97);backdrop-filter:blur(18px);
  padding:20px;overflow-y:auto;
}
.drawer.is-open{display:block;}
.drawer__card{
  display:flex;align-items:center;gap:12px;
  padding:16px;border-radius:var(--r-m);
  background:var(--panel-glass);border:1px solid var(--line);
  margin-bottom:10px;color:var(--text-1);font-size:15px;
}
.drawer__card.is-active{border-color:var(--line-strong);color:var(--primary);}
.drawer__card svg{width:20px;height:20px;stroke:currentColor;}
.drawer .btn{margin-top:8px;}

/* ============ 通用区块 ============ */
.section{padding:88px 0;position:relative;z-index:1;}
.section--alt{background:linear-gradient(180deg,rgba(11,32,51,.72),rgba(7,22,38,.24));border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;color:var(--accent);
  background:rgba(255,178,91,.14);border:1px solid rgba(255,178,91,.28);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}
h1{font-size:clamp(30px,4.2vw,46px);font-weight:700;line-height:1.28;letter-spacing:-.01em;}
h2{font-size:clamp(24px,2.8vw,32px);font-weight:700;line-height:1.35;}
h3{font-size:20px;font-weight:600;line-height:1.45;}
.lead{font-size:18px;line-height:1.7;color:var(--text-2);}
.sub{font-size:15px;line-height:1.8;color:var(--text-2);}
.muted{color:var(--text-2);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.04em;font-weight:600;
  padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(255,178,91,.14);color:var(--accent);
  border:1px solid rgba(255,178,91,.24);
}
.badge--ok{background:rgba(31,200,169,.14);color:var(--primary);border-color:rgba(31,200,169,.28);}
.badge__dot{width:6px;height:6px;border-radius:50%;background:currentColor;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:76px 0 0;
  background-image:linear-gradient(180deg,rgba(7,22,38,.72),rgba(7,22,38,.92)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center 30%;
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,200,169,.6),rgba(255,178,91,.5),transparent);
}
.hero__grid{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;}
.hero__title{margin:16px 0 20px;}
.hero__title em{font-style:normal;color:var(--primary);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.fact{
  display:flex;align-items:center;gap:8px;
  padding:9px 14px;border-radius:var(--r-pill);
  background:var(--panel-glass);border:1px solid var(--line);
  font-size:13px;color:var(--text-2);
}
.fact b{color:var(--primary);font-size:15px;font-weight:700;}
.hero-card{
  background:var(--panel-glass);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:32px;
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh-2);
}
.hero-card__head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px;}
.hero-card__head h2{font-size:20px;}
.check-list li{
  display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);
  font-size:15px;color:var(--text-2);
}
.check-list li:last-child{border-bottom:0;}
.check-list b{color:var(--text-1);font-weight:600;display:block;font-size:15px;}
.check-list i{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;margin-top:2px;
  display:grid;place-items:center;font-style:normal;font-size:12px;font-weight:700;
  background:rgba(31,200,169,.16);color:var(--primary);border:1px solid rgba(31,200,169,.3);
}
.hero-steps{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;
  margin-top:56px;padding-bottom:44px;
}
.mini-step{
  display:flex;align-items:center;gap:14px;
  padding:16px 18px;border-radius:var(--r-m);
  background:var(--panel-glass);border:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.mini-step b{font-size:24px;font-weight:700;color:var(--accent);line-height:1;}
.mini-step span{font-size:14px;color:var(--text-2);}

/* ============ 三步上手 ============ */
.steps{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative;
}
.step-card{
  position:relative;
  background:var(--panel-glass);border:1px solid var(--line);border-radius:var(--r-l);
  padding:28px;backdrop-filter:blur(12px);
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.step-card__num{font-size:24px;font-weight:700;color:var(--accent);letter-spacing:.02em;margin-bottom:14px;}
.step-card h3{margin-bottom:10px;}
.step-card p{font-size:15px;line-height:1.8;color:var(--text-2);margin-bottom:18px;}
.step-card::before{
  content:"";position:absolute;top:52px;right:-24px;width:24px;height:1px;
  background:repeating-linear-gradient(90deg,rgba(31,200,169,.5) 0 4px,transparent 4px 8px);
}
.step-card:last-child::before{display:none;}

/* ============ 能力概览 ============ */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat-card{
  background:var(--panel-glass);border:1px solid var(--line);border-radius:var(--r-l);
  padding:26px 24px;backdrop-filter:blur(10px);
  transition:border-color .22s ease-out,transform .22s ease-out;
}
.stat-card:hover{border-color:var(--line-strong);transform:translateY(-2px);}
.stat-card b{display:block;font-size:26px;font-weight:700;color:var(--primary);line-height:1.2;margin-bottom:6px;}
.stat-card span{font-size:13px;color:var(--text-2);}
.stat-card p{font-size:14px;color:var(--text-3);margin-top:10px;line-height:1.7;}

/* ============ 案例证明 ============ */
.proof{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;align-items:start;}
.proof-main{
  background:var(--panel-glass);border:1px solid var(--line);border-radius:var(--r-l);
  overflow:hidden;backdrop-filter:blur(12px);box-shadow:var(--sh-1);
  transition:border-color .22s ease-out,box-shadow .22s ease-out,transform .22s ease-out;
}
.proof-main:hover{border-color:var(--line-strong);box-shadow:var(--sh-2);transform:translateY(-2px);}
.proof-main__media{position:relative;aspect-ratio:3/2;overflow:hidden;}
.proof-main__media img{width:100%;height:100%;object-fit:cover;}
.proof-main__media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,22,38,.10),rgba(7,22,38,.72));}
.proof-main__body{padding:28px;}
.proof-main__body h3{margin-bottom:12px;}
.proof-main__body p{font-size:15px;line-height:1.8;color:var(--text-2);}
.proof-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}
.proof-badge{
  padding:12px 18px;border-radius:var(--r-m);
  background:rgba(31,200,169,.08);border:1px solid var(--line-strong);min-width:116px;
}
.proof-badge b{display:block;font-size:24px;font-weight:700;color:var(--primary);line-height:1.1;}
.proof-badge span{font-size:12px;color:var(--text-2);}
.proof-side{display:grid;gap:24px;}
.proof-side .side-card:nth-child(1){margin-left:24px;}
.side-card{
  background:var(--panel-glass);border:1px solid var(--line);border-radius:var(--r-l);
  padding:24px;backdrop-filter:blur(12px);
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.side-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--sh-2);}
.side-card h3{font-size:18px;margin:12px 0 8px;}
.side-card p{font-size:14px;line-height:1.8;color:var(--text-2);}

/* ============ FAQ ============ */
.faq{display:grid;grid-template-columns:.85fr 2fr;gap:44px;align-items:start;}
.faq-aside h2{margin-bottom:14px;}
.faq-aside p{font-size:15px;line-height:1.8;color:var(--text-2);}
.faq-list{display:grid;gap:14px;}
.faq-item{
  background:var(--panel-glass);border:1px solid var(--line);border-radius:var(--r-m);
  backdrop-filter:blur(10px);overflow:hidden;
  transition:border-color .22s ease-out;
}
.faq-item.is-open{border-color:var(--line-strong);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:transparent;border:0;cursor:pointer;text-align:left;
  padding:20px 22px;font-size:17px;font-weight:600;color:var(--text-1);
}
.faq-q i{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;font-style:normal;font-size:15px;font-weight:700;
  border:1px solid var(--line-strong);color:var(--primary);transition:.22s ease-out;
}
.faq-item.is-open .faq-q i{background:rgba(31,200,169,.16);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease-out;}
.faq-a__inner{
  padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--text-2);
  border-top:1px solid transparent;
}
.faq-item.is-open .faq-a__inner{
  border-top-image:linear-gradient(90deg,rgba(31,200,169,.5),transparent);
  border-top:1px solid var(--line);
}

/* ============ 资讯列表 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  display:flex;flex-direction:column;
  background:var(--panel-glass);border:1px solid var(--line);border-radius:var(--r-l);
  overflow:hidden;backdrop-filter:blur(12px);box-shadow:var(--sh-1);
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.post-card__cover{display:block;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(140deg,#0B2033,#123A55);}
.post-card__cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.post-card:hover .post-card__cover img{transform:scale(1.03);}
.post-card__body{padding:22px;display:flex;flex-direction:column;flex:1 1 auto;}
.post-card__meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px;}
.post-card__time{font-size:14px;color:var(--text-2);}
.post-card__title{font-size:18px;font-weight:600;line-height:1.5;margin-bottom:10px;}
.post-card__title a{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease-out;
}
.post-card__title a:hover{color:var(--primary);}
.post-card__excerpt{
  font-size:14px;line-height:1.7;color:var(--text-2);margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__body .link-btn{margin-top:auto;}
.empty-state{
  grid-column:1/-1;
  display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;
  padding:56px 28px;border-radius:var(--r-l);
  background:var(--panel-glass);border:1px dashed var(--line-strong);
  backdrop-filter:blur(10px);
}
.empty-state svg{width:40px;height:40px;stroke:var(--primary);opacity:.9;}
.empty-state p{color:var(--text-2);font-size:15px;}

/* ============ CTA 条带 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,#0B2033 0%,#071626 60%,#0B2033 100%);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-band::before{
  content:"";position:absolute;top:-60%;left:-10%;width:70%;height:220%;
  background:linear-gradient(90deg,transparent,rgba(31,200,169,.12),transparent);
  transform:rotate(18deg);pointer-events:none;
}
.cta-band__inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:64px 0;
}
.cta-band h2{margin-bottom:10px;}
.cta-band p{font-size:15px;color:var(--text-2);max-width:560px;}
.trust-row{display:flex;flex-wrap:wrap;gap:14px;padding:0 0 56px;}
.trust-item{
  display:flex;align-items:center;gap:10px;
  padding:12px 18px;border-radius:var(--r-pill);
  background:var(--panel-glass);border:1px solid var(--line);font-size:14px;color:var(--text-2);
}
.trust-item svg{width:18px;height:18px;stroke:var(--primary);}

/* ============ 页脚 ============ */
.site-footer{
  background:linear-gradient(180deg,rgba(7,22,38,.4),#050F1B);
  border-top:1px solid var(--line);padding:64px 0 0;position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px;padding-bottom:44px;}
.footer-col h3{
  font-size:14px;font-weight:600;margin-bottom:18px;position:relative;padding-left:12px;color:var(--text-1);
}
.footer-col h3::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:3px;border-radius:3px;background:var(--primary);}
.footer-col p{font-size:14px;line-height:1.8;color:var(--text-2);}
.footer-list{display:grid;gap:12px;}
.footer-list a{font-size:14px;color:var(--text-2);transition:color .2s ease-out;}
.footer-list a:hover{color:var(--primary);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-card{
  background:var(--panel-glass);border:1px solid var(--line);border-radius:var(--r-m);
  padding:18px;font-size:14px;color:var(--text-2);line-height:1.8;
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:22px 0 28px;font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--primary);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
  .footer-col--wide{grid-column:1/-1;}
}
@media (max-width:991px){
  .nav-panel{display:none;}
  .nav-toggle{display:grid;}
  .hero__grid{grid-template-columns:1fr;gap:32px;}
  .steps{grid-template-columns:1fr;gap:16px;}
  .step-card::before{display:none;}
  .proof{grid-template-columns:1fr;}
  .proof-side .side-card:nth-child(1){margin-left:0;}
  .faq{grid-template-columns:1fr;gap:28px;}
  .section{padding:64px 0;}
}
@media (max-width:768px){
  .hero{padding-top:48px;}
  .hero-steps{grid-template-columns:1fr;margin-top:36px;padding-bottom:32px;}
  .stat-grid{grid-template-columns:1fr;}
  .cta-band__inner{flex-direction:column;align-items:flex-start;padding:48px 0;}
  .cta-band__inner .btn{width:100%;}
  .trust-row{padding-bottom:44px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .section{padding:52px 0;}
  .section-head{margin-bottom:32px;}
  .hero-actions .btn{flex:1 1 auto;}
}
@media (max-width:520px){
  body{font-size:15px;}
  .card-grid{grid-template-columns:1fr;}
  .nav-wrap{padding:8px 16px;gap:12px;min-height:64px;}
  .drawer{inset:64px 0 0 0;}
  .hero-card{padding:22px;}
  .step-card,.side-card,.post-card__body{padding:20px;}
  .brand__text span{display:none;}
  .section-head--row{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --bg-deep:#071626;
  --bg-deep-2:#0B2033;
  --panel-glass:rgba(18,42,64,.55);
  --primary:#1FC8A9;
  --primary-glow:rgba(31,200,169,.45);
  --accent:#FFB25B;
  --accent-2:#FF7A6B;
  --text-1:#EAF3FA;
  --text-2:#A7BDD0;
  --text-3:#6B8598;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(31,200,169,.35);
  --r-s:8px;--r-m:14px;--r-l:22px;--r-pill:999px;
  --sh-1:0 2px 10px rgba(0,0,0,.25);
  --sh-2:0 12px 32px rgba(0,0,0,.38);
  --sh-glow:0 0 0 1px rgba(31,200,169,.35),0 8px 28px rgba(31,200,169,.28);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.75;color:var(--text-1);
  background-color:var(--bg-deep);
  background-image:
    radial-gradient(900px 520px at 10% -6%,rgba(31,200,169,.10),transparent 62%),
    radial-gradient(760px 460px at 94% 4%,rgba(255,178,91,.07),transparent 64%),
    repeating-linear-gradient(0deg,rgba(255,255,255,.02) 0 1px,transparent 1px 46px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.02) 0 1px,transparent 1px 46px);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0 0 auto;height:1px;z-index:60;
  background:linear-gradient(90deg,transparent,var(--primary) 32%,var(--accent) 68%,transparent);
  opacity:.75;pointer-events:none;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
::selection{background:rgba(31,200,169,.3)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,2.8vw,32px);font-weight:700;letter-spacing:.01em}
.section-head p{color:var(--text-2);font-size:15px;margin-top:10px;max-width:640px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;color:var(--accent);text-transform:uppercase}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);opacity:.7}

/* header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(7,22,38,.82);
  backdrop-filter:blur(16px) saturate(130%);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{width:36px;height:36px;display:grid;place-items:center;border-radius:12px;background:rgba(31,200,169,.12);border:1px solid var(--line-strong)}
.brand__mark svg{width:22px;height:22px}
.brand__text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand__text i{font-style:normal;color:var(--primary)}
.nav-panel{
  display:flex;align-items:center;gap:4px;flex:1 1 auto;min-width:0;
  padding:8px;border-radius:var(--r-l);
  background:var(--panel-glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  overflow:hidden;
}
.nav-chip{
  display:flex;align-items:center;gap:7px;
  padding:8px 12px;border-radius:var(--r-s);
  font-size:14px;color:var(--text-2);white-space:nowrap;
  border:1px solid transparent;
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.nav-chip svg{width:19px;height:19px;stroke:currentColor;flex:0 0 auto}
.nav-chip:hover{background:rgba(31,200,169,.12);border-color:var(--line-strong);color:var(--text-1)}
.nav-chip.is-active{color:var(--primary);background:rgba(31,200,169,.12);border-color:var(--line-strong);box-shadow:inset 3px 0 0 var(--primary)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.menu-toggle{display:none;width:42px;height:42px;border-radius:var(--r-m);border:1px solid var(--line);background:var(--panel-glass);place-items:center}
.menu-toggle span{display:block;width:18px;height:1.6px;background:var(--text-1);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out}
.menu-toggle span+span{margin-top:4px}
.menu-toggle.is-open span:nth-child(1){transform:translateY(5.6px) rotate(45deg)}
.menu-toggle.is-open span:nth-child(2){opacity:0}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg)}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-m);font-weight:600;font-size:15px;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,border-color .18s ease-out;
}
.btn svg{width:16px;height:16px;stroke:currentColor}
.btn--primary{background:var(--primary);color:#04141F;box-shadow:var(--sh-glow)}
.btn--primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(31,200,169,.4),0 4px 34px rgba(31,200,169,.45)}
.btn--primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(31,200,169,.4),0 2px 12px rgba(31,200,169,.3)}
.btn--ghost{background:transparent;border:1px solid var(--line-strong);color:var(--text-1)}
.btn--ghost:hover{background:rgba(31,200,169,.10);border-color:var(--primary)}
.btn--sm{padding:10px 18px;font-size:14px}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:600}
.link-more svg{width:15px;height:15px;stroke:currentColor;transition:transform .18s ease-out}
.link-more:hover svg{transform:translateX(3px)}

/* page banner */
.page-banner{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.page-banner__bg{position:absolute;inset:0;background:url("/assets/images/backpic/back-2.png") center/cover no-repeat;filter:saturate(85%)}
.page-banner::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,22,38,.82),rgba(7,22,38,.94) 70%,var(--bg-deep))}
.page-banner__inner{position:relative;z-index:2;padding:52px 0 44px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-3);margin-bottom:18px}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span.sep{opacity:.6}
.page-banner h1{font-size:clamp(28px,4vw,42px);font-weight:700;letter-spacing:.01em;max-width:900px}

/* article head */
.article-head{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-bottom:14px}
.badge{display:inline-flex;align-items:center;gap:7px;padding:6px 14px;border-radius:var(--r-pill);font-size:12px;letter-spacing:.04em;background:rgba(255,178,91,.14);color:var(--accent)}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
.badge--ok{background:rgba(31,200,169,.14);color:var(--primary)}
.meta-row{display:flex;flex-wrap:wrap;gap:18px;color:var(--text-2);font-size:14px}
.meta-row b{color:var(--text-1);font-weight:600}

/* layout */
.article-shell{padding:56px 0 88px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:34px}
.article-main{min-width:0}
.article-card{
  padding:34px;border-radius:var(--r-l);
  background:var(--panel-glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh-1);
}
.article-body{font-size:17px;line-height:1.9;color:#DCE9F3;max-width:760px}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 20px;color:#DCE9F3}
.article-body h2{font-size:24px;font-weight:700;color:var(--text-1);margin:40px 0 16px;padding-left:14px;position:relative}
.article-body h2::before{content:"";position:absolute;left:0;top:.34em;width:3px;height:1em;border-radius:2px;background:var(--primary);box-shadow:0 0 12px var(--primary-glow)}
.article-body h3{font-size:20px;font-weight:600;color:var(--text-1);margin:30px 0 12px}
.article-body h4{font-size:17px;font-weight:600;color:var(--text-1);margin:24px 0 10px}
.article-body ul,.article-body ol{margin:0 0 20px}
.article-body li{position:relative;padding-left:22px;margin-bottom:10px;color:var(--text-2)}
.article-body ul li::before{content:"";position:absolute;left:4px;top:.62em;width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px var(--primary-glow)}
.article-body ol{counter-reset:li}
.article-body ol li::before{counter-increment:li;content:counter(li);position:absolute;left:0;top:0;color:var(--accent);font-weight:700;font-size:15px}
.article-body blockquote{margin:24px 0;padding:18px 22px;border-left:3px solid var(--primary);border-radius:0 var(--r-m) var(--r-m) 0;background:rgba(18,42,64,.6);color:var(--text-2)}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(167,189,208,.45)}
.article-body a:hover{border-bottom-color:var(--primary)}
.article-body img{margin:24px auto;border-radius:var(--r-m);box-shadow:var(--sh-2)}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body table{width:100%;display:block;overflow-x:auto;border-collapse:collapse;margin:22px 0;border-radius:var(--r-m);border:1px solid var(--line);background:rgba(18,42,64,.5)}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;font-size:15px;color:var(--text-2);white-space:nowrap}
.article-body th{color:var(--text-1);font-weight:600;background:rgba(31,200,169,.08)}
.article-body tr:last-child td{border-bottom:0}
.article-body pre{margin:22px 0;padding:18px 20px;border-radius:var(--r-m);background:#04101c;border:1px solid var(--line);overflow-x:auto;font-size:14px;line-height:1.7}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.94em;color:var(--accent)}
.article-body pre code{color:#cfe3f2}
.article-body hr{border:0;height:1px;background:var(--line);margin:36px 0}

/* sidebar */
.article-side{display:none}
.side-card{padding:24px;border-radius:var(--r-l);background:var(--panel-glass);border:1px solid var(--line);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--sh-1);margin-bottom:20px}
.side-card h3{font-size:15px;font-weight:600;display:flex;align-items:center;gap:8px;margin-bottom:14px}
.side-card h3::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--primary)}
.side-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 10px;border-radius:var(--r-s);font-size:14px;color:var(--text-2);border:1px solid transparent;transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out}
.side-list a:hover{background:rgba(31,200,169,.12);border-color:var(--line-strong);color:var(--text-1)}
.side-list a svg{width:14px;height:14px;stroke:currentColor;opacity:.7}
.side-note{font-size:14px;color:var(--text-2);line-height:1.8}

/* tags & related */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}
.tag{padding:6px 14px;border-radius:var(--r-pill);font-size:13px;color:var(--text-2);background:rgba(255,255,255,.04);border:1px solid var(--line);transition:color .18s ease-out,border-color .18s ease-out,background .18s ease-out}
.tag:hover{color:var(--primary);border-color:var(--line-strong);background:rgba(31,200,169,.12)}
.exit-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}

.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-l);
  background:var(--panel-glass);border:1px solid var(--line);
  box-shadow:var(--sh-1);transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
.rel-card__media{aspect-ratio:16/10;overflow:hidden;background:linear-gradient(140deg,#0d2a41,#071626)}
.rel-card__media img{width:100%;height:100%;object-fit:cover}
.rel-card__body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-card__body h3{font-size:18px;font-weight:600;line-height:1.5}
.rel-card__body p{font-size:14px;color:var(--text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card:hover h3{color:var(--primary)}

/* CTA band */
.cta-band{position:relative;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-deep-2)}
.cta-band::before{content:"";position:absolute;inset:-40% -10% auto;height:180%;background:linear-gradient(115deg,transparent 30%,rgba(31,200,169,.12) 48%,transparent 66%);transform:rotate(-4deg)}
.cta-band__inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:28px;padding:56px 0;flex-wrap:wrap}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;max-width:640px}
.cta-band p{color:var(--text-2);font-size:15px;margin-top:10px;max-width:620px}
.trust-row{display:flex;flex-wrap:wrap;gap:22px;padding:22px 0 0;color:var(--text-2);font-size:14px}
.trust-row span{display:inline-flex;align-items:center;gap:8px}
.trust-row svg{width:16px;height:16px;stroke:var(--primary)}

/* empty state */
.empty-state{display:flex;flex-direction:column;align-items:center;text-align:center;gap:14px;padding:56px 26px;border-radius:var(--r-l);background:var(--panel-glass);border:1px solid var(--line)}
.empty-state svg{width:44px;height:44px;stroke:var(--primary);opacity:.9}
.empty-state h2{font-size:22px;font-weight:700}
.empty-state p{color:var(--text-2);font-size:15px;max-width:520px}

/* footer */
.site-footer{border-top:1px solid var(--line);background:rgba(7,22,38,.9);padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px}
.footer-col h3{font-size:14px;font-weight:600;display:flex;align-items:center;gap:8px;margin-bottom:16px}
.footer-col h3::before{content:"";width:3px;height:13px;border-radius:2px;background:var(--primary)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-col--wide p{color:var(--text-2);font-size:14px;line-height:1.8;max-width:340px}
.footer-list{display:flex;flex-direction:column;gap:9px}
.footer-list a{color:var(--text-2);font-size:14px;transition:color .18s ease-out,padding-left .18s ease-out}
.footer-list a:hover{color:var(--primary);padding-left:3px}
.footer-card{padding:16px 18px;border-radius:var(--r-m);background:var(--panel-glass);border:1px solid var(--line);color:var(--text-2);font-size:14px;line-height:1.8}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;color:var(--text-3);font-size:13px}
.footer-bottom a{color:var(--text-2)}
.footer-bottom a:hover{color:var(--primary)}

/* to top */
.to-top{position:fixed;right:20px;bottom:24px;width:44px;height:44px;border-radius:var(--r-m);display:none;place-items:center;background:var(--panel-glass);border:1px solid var(--line-strong);backdrop-filter:blur(12px);box-shadow:var(--sh-2);z-index:40}
.to-top svg{width:18px;height:18px;stroke:var(--primary)}
.to-top.is-visible{display:grid}

@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;align-items:start}
  .article-side{display:block;position:sticky;top:96px}
}
@media (max-width:1199px){
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:992px){
  .nav-panel{
    position:fixed;top:72px;left:0;right:0;bottom:0;
    flex-direction:column;align-items:stretch;gap:10px;
    padding:18px 20px 26px;border-radius:0;border-left:0;border-right:0;border-bottom:0;
    background:rgba(7,22,38,.97);overflow-y:auto;
    transform:translateY(-12px);opacity:0;visibility:hidden;
    transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
  }
  .nav-panel.is-open{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-chip{padding:14px 16px;background:var(--panel-glass);border:1px solid var(--line);font-size:15px}
  .nav-chip svg{width:20px;height:20px}
  .menu-toggle{display:grid}
  .header-actions .btn--primary{display:none}
  .section{padding:64px 0}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
}
@media (max-width:768px){
  .article-shell{padding:40px 0 64px}
  .article-card{padding:22px}
  .article-body{font-size:16px}
  .article-body h2{font-size:21px;margin-top:32px}
  .article-body h3{font-size:18px}
  .page-banner__inner{padding:36px 0 30px}
  .cta-band__inner{padding:44px 0;flex-direction:column;align-items:flex-start}
  .cta-band .btn{width:100%}
  .rel-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand__text{font-size:15px}
  .section{padding:52px 0}
  .btn{padding:12px 20px}
  .exit-row .btn{width:100%}
  .article-card{padding:18px}
}

/* roulang page: category1 */
:root{
  --bg-deep:#071626;
  --bg-deep-2:#0B2033;
  --panel-glass:rgba(18,42,64,.55);
  --primary:#1FC8A9;
  --primary-glow:rgba(31,200,169,.45);
  --accent:#FFB25B;
  --accent-2:#FF7A6B;
  --text-1:#EAF3FA;
  --text-2:#A7BDD0;
  --text-3:#6B8598;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(31,200,169,.35);
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 2px 10px rgba(0,0,0,.25);
  --sh-2:0 12px 32px rgba(0,0,0,.38);
  --sh-glow:0 0 0 1px rgba(31,200,169,.35),0 8px 28px rgba(31,200,169,.28);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-deep);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:3px 3px;opacity:.55;
}
.top-line{
  position:fixed;top:0;left:0;right:0;height:1px;z-index:80;pointer-events:none;
  background:linear-gradient(90deg,transparent 0%,rgba(31,200,169,.85) 24%,rgba(255,178,91,.85) 62%,transparent 100%);
  opacity:.8;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease-out}
button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
svg{display:block}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1}
.skip{position:absolute;left:-9999px;top:0;background:var(--primary);color:#04141F;padding:10px 16px;border-radius:var(--r-s);z-index:120}
.skip:focus{left:12px;top:12px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,22,38,.82);
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand__mark{
  width:38px;height:38px;flex:none;display:flex;align-items:center;justify-content:center;
  border-radius:var(--r-m);
  background:linear-gradient(140deg,rgba(31,200,169,.20),rgba(7,22,38,.9));
  border:1px solid var(--line-strong);
  box-shadow:inset 0 0 14px rgba(31,200,169,.18);
}
.brand__mark svg{width:22px;height:22px}
.brand__text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand__text i{font-style:normal;color:var(--primary)}
.nav-panel{
  display:flex;align-items:center;gap:4px;
  margin-left:auto;
  padding:8px;
  border-radius:var(--r-l);
  background:var(--panel-glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  overflow-x:auto;scrollbar-width:none;
}
.nav-panel::-webkit-scrollbar{display:none}
.nav-chip{
  position:relative;display:flex;align-items:center;gap:7px;
  padding:9px 11px;border-radius:var(--r-s);
  font-size:14px;color:var(--text-2);white-space:nowrap;flex:none;
  transition:background .2s ease-out,color .2s ease-out,box-shadow .2s ease-out;
}
.nav-chip svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-linecap:round;stroke-linejoin:round;flex:none}
.nav-chip:hover{background:rgba(31,200,169,.12);color:var(--text-1);box-shadow:inset 0 0 0 1px var(--line-strong)}
.nav-chip.is-active{color:var(--primary)}
.nav-chip.is-active::before{
  content:"";position:absolute;left:3px;top:50%;transform:translateY(-50%);
  width:3px;height:18px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 10px var(--primary-glow);
}
.header-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-s);
  border:1px solid var(--line);background:rgba(18,42,64,.5);
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;position:relative;transition:background .2s ease-out}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-1);border-radius:2px;
  transition:transform .22s ease-out,top .22s ease-out;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{top:0;transform:rotate(45deg)}
.nav-toggle.is-open span::after{top:0;transform:rotate(-45deg)}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:70;
  background:rgba(4,14,24,.96);
  backdrop-filter:blur(8px);
  padding:20px;
  overflow-y:auto;
  display:none;
}
.drawer.is-open{display:block}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{
  width:42px;height:42px;border-radius:var(--r-s);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--text-1);
}
.drawer-nav{display:flex;flex-direction:column;gap:10px}
.drawer-nav a{
  display:flex;align-items:center;gap:10px;
  padding:14px 16px;border-radius:var(--r-m);
  background:var(--panel-glass);border:1px solid var(--line);
  font-size:15px;color:var(--text-1);
}
.drawer-nav a svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-linecap:round;stroke-linejoin:round}
.drawer-nav a.is-active{color:var(--primary);border-color:var(--line-strong);box-shadow:inset 3px 0 0 var(--primary)}
.drawer-cta{width:100%;margin-top:18px;justify-content:center}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-m);font-weight:600;font-size:15px;
  padding:13px 26px;line-height:1.2;white-space:nowrap;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,border-color .2s ease-out,color .2s ease-out,filter .2s ease-out;
}
.btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease-out}
.btn-primary{background:var(--primary);color:#04141F;box-shadow:var(--sh-glow)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 4px 34px rgba(31,200,169,.45)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(31,200,169,.45),0 4px 14px rgba(31,200,169,.22)}
.btn-ghost{background:transparent;color:var(--text-1);border:1px solid var(--line-strong)}
.btn-ghost:hover{background:rgba(31,200,169,.10);border-color:var(--primary)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:var(--r-s)}
.btn:focus-visible,.nav-chip:focus-visible,.nav-toggle:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:14px}
.link-arrow svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease-out}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.04em;
  background:rgba(255,178,91,.14);color:var(--accent);
  border:1px solid rgba(255,178,91,.22);
}
.badge--ok{background:rgba(31,200,169,.14);color:var(--primary);border-color:rgba(31,200,169,.28)}
.dot{width:6px;height:6px;border-radius:50%;background:currentColor;display:inline-block}

/* ---------- hero band ---------- */
.page-hero{
  position:relative;
  min-height:240px;
  display:flex;align-items:flex-end;
  padding:44px 0 34px;
  background-image:linear-gradient(100deg,rgba(7,22,38,.95) 0%,rgba(7,22,38,.78) 48%,rgba(7,22,38,.92) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-80px;bottom:-120px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(31,200,169,.20),transparent 68%);
  pointer-events:none;
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:14px;flex-wrap:wrap}
.crumbs a{color:var(--text-3)}
.crumbs a:hover{color:var(--primary)}
.crumbs span.sep{opacity:.6}
.crumbs .now{color:var(--text-2)}
.page-hero h1{
  font-size:clamp(28px,4vw,44px);
  line-height:1.28;font-weight:700;letter-spacing:.01em;
  max-width:900px;
}
.page-hero h1 em{font-style:normal;color:var(--primary)}
.hero-sub{
  margin-top:14px;font-size:17px;line-height:1.75;color:var(--text-2);
  max-width:760px;
}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}

/* ---------- generic section ---------- */
.section{padding:88px 0;position:relative}
.section--alt{background:var(--bg-deep-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{
  font-size:clamp(24px,2.8vw,32px);font-weight:700;line-height:1.35;letter-spacing:.01em;
}
.section-head p{margin-top:12px;color:var(--text-2);font-size:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;color:var(--accent);text-transform:uppercase;
  margin-bottom:14px;font-weight:600;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);opacity:.7}

/* ---------- intro strip ---------- */
.intro-strip{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
  margin-top:-46px;position:relative;z-index:5;
}
.intro-card{
  background:var(--panel-glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.intro-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
.intro-card .num{
  font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--accent);
  letter-spacing:.02em;
}
.intro-card h3{margin-top:8px;font-size:17px;font-weight:600}
.intro-card p{margin-top:8px;font-size:14px;line-height:1.85;color:var(--text-2)}

/* ---------- index layout ---------- */
.index-grid{display:grid;grid-template-columns:276px minmax(0,1fr);gap:28px;align-items:start}
.idx-nav{
  position:sticky;top:96px;
  background:var(--panel-glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:16px;
}
.idx-nav h2{font-size:14px;font-weight:600;color:var(--text-3);letter-spacing:.06em;padding:6px 8px 12px}
.idx-nav ol{display:flex;flex-direction:column;gap:4px}
.idx-link{
  display:flex;align-items:center;gap:12px;
  padding:11px 12px;border-radius:var(--r-s);
  font-size:14px;color:var(--text-2);
  border:1px solid transparent;
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.idx-link .n{font-family:var(--font-num);font-weight:700;font-size:13px;color:var(--accent);letter-spacing:.04em}
.idx-link:hover{background:rgba(31,200,169,.10);color:var(--text-1);border-color:var(--line-strong)}
.idx-link.is-active{background:rgba(31,200,169,.12);color:var(--primary);border-color:var(--line-strong);box-shadow:inset 3px 0 0 var(--primary)}
.idx-link.is-active .n{color:var(--primary)}

.step-stack{display:flex;flex-direction:column;gap:24px}
.step-card{
  background:var(--panel-glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:28px;
  scroll-margin-top:100px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out;
}
.step-card:hover{border-color:var(--line-strong);box-shadow:var(--sh-2);transform:translateY(-2px)}
.step-top{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.step-no{
  font-family:var(--font-num);font-size:24px;font-weight:700;color:var(--accent);letter-spacing:.02em;
}
.step-card h3{font-size:20px;font-weight:600;line-height:1.4}
.step-card > p{margin-top:12px;font-size:15px;line-height:1.85;color:var(--text-2)}
.point-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.point-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;line-height:1.8;color:var(--text-1);
}
.point-list li::before{
  content:"";flex:none;width:6px;height:6px;border-radius:50%;
  background:var(--primary);margin-top:11px;box-shadow:0 0 8px var(--primary-glow);
}
.note{
  margin-top:20px;
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 16px;border-radius:var(--r-m);
  background:rgba(255,178,91,.08);
  border:1px solid rgba(255,178,91,.20);
  font-size:14px;line-height:1.8;color:var(--text-2);
}
.note strong{color:var(--accent);font-weight:600;flex:none}

/* ---------- scenario ---------- */
.scenario-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:40px;align-items:center}
.scenario-figure{
  border-radius:var(--r-l);overflow:hidden;position:relative;
  border:1px solid var(--line);box-shadow:var(--sh-2);
  background:linear-gradient(140deg,rgba(31,200,169,.16),rgba(7,22,38,.95));
}
.scenario-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:3/2;opacity:.92}
.scenario-figure figcaption{
  position:absolute;left:16px;bottom:14px;
  font-size:13px;color:var(--text-2);
  background:rgba(7,22,38,.72);border:1px solid var(--line);
  padding:6px 12px;border-radius:var(--r-pill);
  backdrop-filter:blur(8px);
}
.scenario-list{display:flex;flex-direction:column;gap:16px;margin-top:24px}
.scenario-item{
  display:flex;gap:14px;
  padding:18px 20px;border-radius:var(--r-m);
  border:1px solid var(--line);
  background:rgba(18,42,64,.38);
  transition:border-color .2s ease-out,transform .2s ease-out,background .2s ease-out;
}
.scenario-item:hover{border-color:var(--line-strong);transform:translateY(-2px);background:rgba(18,42,64,.6)}
.scenario-item .ico{
  width:38px;height:38px;flex:none;border-radius:var(--r-s);
  display:flex;align-items:center;justify-content:center;
  background:rgba(31,200,169,.12);border:1px solid var(--line-strong);
  color:var(--primary);
}
.scenario-item .ico svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.scenario-item h3{font-size:17px;font-weight:600}
.scenario-item p{margin-top:6px;font-size:14px;line-height:1.8;color:var(--text-2)}

/* ---------- checklist ---------- */
.check-panel{
  background:var(--panel-glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  overflow:hidden;
}
.check-row{
  display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.4fr);
  gap:20px;padding:20px 28px;
  border-bottom:1px solid var(--line);
  transition:background .2s ease-out;
}
.check-row:last-child{border-bottom:0}
.check-row:hover{background:rgba(31,200,169,.05)}
.check-row .k{font-size:16px;font-weight:600;display:flex;align-items:center;gap:10px}
.check-row .k .idx{font-family:var(--font-num);font-size:13px;color:var(--accent);font-weight:700}
.check-row .v{font-size:14.5px;line-height:1.85;color:var(--text-2)}
.check-row .v b{color:var(--primary);font-weight:600}

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:minmax(0,.32fr) minmax(0,.68fr);gap:40px;align-items:start}
.faq-aside h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.4}
.faq-aside p{margin-top:12px;font-size:14.5px;line-height:1.85;color:var(--text-2)}
.faq-aside .badge{margin-top:18px}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--panel-glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  overflow:hidden;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item.is-open{border-color:var(--line-strong);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;text-align:left;
  font-size:17px;font-weight:600;color:var(--text-1);line-height:1.55;
}
.faq-q .pm{
  width:26px;height:26px;flex:none;border-radius:50%;
  border:1px solid var(--line-strong);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;line-height:1;font-weight:400;
  transition:transform .22s ease-out,background .2s ease-out;
}
.faq-item.is-open .faq-q .pm{background:rgba(31,200,169,.14);transform:rotate(180deg)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .24s ease-out;
}
.faq-item.is-open .faq-a{max-height:320px}
.faq-a-inner{
  padding:0 22px 20px;
  font-size:15px;line-height:1.85;color:var(--text-2);
  border-top:1px solid transparent;
  background-image:linear-gradient(90deg,rgba(31,200,169,.55),rgba(255,178,91,.35),transparent);
  background-repeat:no-repeat;background-size:100% 1px;background-position:top left;
}

/* ---------- next / cta ---------- */
.next-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.next-card{
  display:flex;flex-direction:column;gap:10px;
  padding:24px;border-radius:var(--r-l);
  background:var(--panel-glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.next-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
.next-card h3{font-size:18px;font-weight:600}
.next-card p{font-size:14px;line-height:1.8;color:var(--text-2)}
.next-card .link-arrow{margin-top:auto;padding-top:6px}

.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-l);
  border:1px solid var(--line-strong);
  background:linear-gradient(115deg,rgba(11,32,51,.98) 0%,rgba(7,22,38,.98) 55%,rgba(11,32,51,.98) 100%);
  padding:40px 36px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  margin-top:56px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,transparent 12%,rgba(31,200,169,.11) 42%,transparent 62%);
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.4;max-width:620px}
.cta-band p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:620px}
.cta-band .actions{display:flex;gap:12px;flex-wrap:wrap}
.trust-row{
  display:flex;flex-wrap:wrap;gap:24px;justify-content:center;
  margin-top:28px;
}
.trust-item{display:flex;align-items:center;gap:9px;font-size:13.5px;color:var(--text-3)}
.trust-item svg{width:16px;height:16px;stroke:var(--primary);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

/* ---------- footer ---------- */
.site-footer{
  position:relative;z-index:1;
  background:linear-gradient(180deg,rgba(7,22,38,.6),rgba(4,14,24,.98));
  border-top:1px solid var(--line);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand__mark{width:36px;height:36px}
.footer-brand .brand__text{font-size:16px}
.footer-col p{font-size:14px;line-height:1.85;color:var(--text-2);max-width:340px}
.footer-col h3{
  font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;
  padding-left:10px;position:relative;
}
.footer-col h3::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:14px;border-radius:2px;background:var(--primary);
}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list a{font-size:14px;color:var(--text-2)}
.footer-list a:hover{color:var(--primary)}
.footer-card{
  font-size:13.5px;line-height:1.85;color:var(--text-2);
  padding:16px;border-radius:var(--r-m);
  background:var(--panel-glass);border:1px solid var(--line);
}
.footer-bottom{
  margin-top:44px;padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--primary)}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .nav-panel{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn-primary{display:none}
  .index-grid{grid-template-columns:1fr}
  .idx-nav{position:static}
  .idx-nav ol{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:4px}
  .idx-link{white-space:nowrap}
}
@media (max-width:992px){
  .section{padding:64px 0}
  .intro-strip{grid-template-columns:1fr;margin-top:-32px}
  .scenario-grid{grid-template-columns:1fr;gap:28px}
  .faq-layout{grid-template-columns:1fr;gap:24px}
  .next-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .check-row{grid-template-columns:1fr;gap:8px;padding:18px 20px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px}
  .cta-band .actions{width:100%}
}
@media (max-width:768px){
  body{font-size:15px}
  .section{padding:52px 0}
  .header-inner{min-height:64px;gap:12px}
  .brand__text{font-size:15px}
  .page-hero{min-height:200px;padding:32px 0 26px}
  .hero-sub{font-size:15.5px}
  .step-card{padding:20px}
  .next-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-col p{max-width:none}
  .intro-card{padding:20px}
  .cta-band h2{font-size:22px}
  .trust-row{gap:16px;justify-content:flex-start}
  .btn{width:100%}
  .cta-band .actions{flex-direction:column}
  .cta-band .actions .btn{width:100%}
  .header-actions .btn{width:auto}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .page-hero h1{font-size:26px}
  .step-no{font-size:20px}
  .faq-q{font-size:15.5px;padding:16px 18px}
  .faq-a-inner{padding:0 18px 18px}
  .step-card h3{font-size:18px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category2 */
:root{
  --bg-deep:#071626;
  --bg-deep-2:#0B2033;
  --panel-glass:rgba(18,42,64,.55);
  --primary:#1FC8A9;
  --primary-glow:rgba(31,200,169,.45);
  --accent:#FFB25B;
  --accent-2:#FF7A6B;
  --text-1:#EAF3FA;
  --text-2:#A7BDD0;
  --text-3:#6B8598;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(31,200,169,.35);
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 2px 10px rgba(0,0,0,.25);
  --sh-2:0 12px 32px rgba(0,0,0,.38);
  --sh-glow:0 0 0 1px rgba(31,200,169,.35),0 8px 28px rgba(31,200,169,.28);
  --sec-gap:88px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:var(--bg-deep);
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:58px 58px;
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 72%);
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 72%);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:6px;
}
::selection{background:rgba(31,200,169,.3);color:#fff}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 20px;
  position:relative;
  z-index:1;
}

/* ---------- 顶部装饰线 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(7,22,38,.82);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  backdrop-filter:blur(16px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.site-header::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,rgba(31,200,169,0) 0%,rgba(31,200,169,.85) 42%,rgba(255,178,91,.75) 78%,rgba(255,178,91,0) 100%);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:16px;
  min-height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand__mark{
  width:32px;
  height:32px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  background:rgba(31,200,169,.10);
  border:1px solid var(--line-strong);
  box-shadow:0 0 18px rgba(31,200,169,.18);
  flex-shrink:0;
}
.brand__mark svg{width:19px;height:19px}
.brand__text b{
  font-size:16px;
  font-weight:700;
  letter-spacing:.01em;
  white-space:nowrap;
}
.brand__text i{font-style:normal;color:var(--primary)}

.nav-panel{
  display:flex;
  align-items:center;
  gap:4px;
  padding:6px;
  margin-left:auto;
  border-radius:var(--r-l);
  background:var(--panel-glass);
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh-1);
}
.nav-chip{
  position:relative;
  display:flex;
  align-items:center;
  gap:6px;
  padding:7px 10px;
  border-radius:var(--r-s);
  font-size:13px;
  line-height:1.4;
  color:var(--text-2);
  white-space:nowrap;
  transition:background .2s ease-out,color .2s ease-out,box-shadow .2s ease-out;
}
.nav-chip svg{
  width:16px;
  height:16px;
  flex-shrink:0;
  fill:none;
  stroke:currentColor;
}
.nav-chip:hover{
  background:rgba(31,200,169,.12);
  color:var(--text-1);
  box-shadow:inset 0 0 0 1px var(--line-strong);
}
.nav-chip.is-active{
  color:var(--primary);
  background:rgba(31,200,169,.10);
}
.nav-chip.is-active::before{
  content:"";
  position:absolute;
  left:2px;
  top:50%;
  transform:translateY(-50%);
  width:3px;
  height:18px;
  border-radius:3px;
  background:var(--primary);
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--r-m);
  font-size:15px;
  font-weight:600;
  line-height:1.4;
  white-space:nowrap;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,border-color .2s ease-out,filter .2s ease-out;
}
.btn--primary{
  background:var(--primary);
  color:#04141F;
  box-shadow:var(--sh-glow);
}
.btn--primary:hover{
  filter:brightness(1.06);
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(31,200,169,.4),0 4px 34px rgba(31,200,169,.45);
}
.btn--primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(31,200,169,.4),0 4px 16px rgba(31,200,169,.3)}
.btn--ghost{
  background:transparent;
  color:var(--text-1);
  border:1px solid var(--line-strong);
}
.btn--ghost:hover{
  background:rgba(31,200,169,.10);
  border-color:var(--primary);
  transform:translateY(-1px);
}
.btn--sm{padding:10px 18px;font-size:13.5px;border-radius:var(--r-m)}
.btn--block{width:100%}

.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}

.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(18,42,64,.55);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
}
.nav-toggle span{
  display:block;
  width:17px;
  height:2px;
  border-radius:2px;
  background:var(--text-1);
  transition:transform .22s ease-out,opacity .22s ease-out;
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.mobile-drawer{
  position:absolute;
  top:100%;
  left:0;
  right:0;
  max-height:0;
  overflow:hidden;
  background:rgba(7,22,38,.97);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  transition:max-height .26s ease-out;
}
.mobile-drawer.is-open{max-height:640px}
.drawer-body{
  padding:18px 20px 24px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.drawer-body .nav-chip{
  padding:14px 16px;
  font-size:14.5px;
  background:var(--panel-glass);
  border:1px solid var(--line);
  border-radius:var(--r-m);
}
.drawer-body .nav-chip.is-active{
  border-color:var(--line-strong);
  box-shadow:0 0 0 1px rgba(31,200,169,.25);
}
.drawer-body .nav-chip.is-active::before{left:6px}
.drawer-cta{margin-top:6px}

/* ---------- 栏目头图带 ---------- */
.page-banner{
  position:relative;
  display:flex;
  align-items:flex-end;
  min-height:240px;
  background-image:
    linear-gradient(92deg,rgba(7,22,38,.95) 0%,rgba(7,22,38,.74) 46%,rgba(11,32,51,.58) 100%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.page-banner::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:linear-gradient(90deg,rgba(31,200,169,0),rgba(31,200,169,.5),rgba(255,178,91,.35),rgba(255,178,91,0));
}
.banner-inner{
  width:100%;
  padding:46px 0 38px;
  position:relative;
  z-index:2;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:16px;
}
.breadcrumb a{color:var(--text-3);transition:color .18s ease-out}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{opacity:.6}
.breadcrumb .current{color:var(--text-2)}

.badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:6px 13px;
  border-radius:var(--r-pill);
  font-size:12px;
  letter-spacing:.04em;
  background:rgba(255,178,91,.14);
  color:var(--accent);
}
.badge .dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:currentColor;
}
.badge--mint{background:rgba(31,200,169,.14);color:var(--primary)}

.banner-title{
  font-size:clamp(28px,3.8vw,42px);
  font-weight:700;
  line-height:1.28;
  letter-spacing:.01em;
  max-width:820px;
}
.banner-title em{
  font-style:normal;
  color:var(--primary);
}
.banner-sub{
  margin-top:14px;
  max-width:760px;
  font-size:16px;
  line-height:1.8;
  color:var(--text-2);
}
.status-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:24px;
}
.status-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border-radius:var(--r-pill);
  font-size:12.5px;
  color:var(--text-2);
  background:var(--panel-glass);
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.status-pill b{color:var(--text-1);font-weight:600}
.status-pill .pulse{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 4px rgba(31,200,169,.16);
}

/* ---------- 通用板块 ---------- */
.section{
  padding:var(--sec-gap) 0;
  position:relative;
}
.section--alt{background:var(--bg-deep-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:44px;
}
.section-head__main{max-width:720px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.16em;
  color:var(--primary);
  margin-bottom:14px;
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:1px;
  background:linear-gradient(90deg,var(--primary),rgba(31,200,169,0));
}
.section-title{
  font-size:clamp(23px,2.8vw,32px);
  font-weight:700;
  line-height:1.35;
}
.section-desc{
  margin-top:14px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--text-2);
}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
}
.link-arrow svg{width:15px;height:15px;fill:none;stroke:currentColor;transition:transform .2s ease-out}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- 概况数据条 ---------- */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.stat{
  padding:28px;
  border-radius:var(--r-l);
  background:var(--panel-glass);
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.stat:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
.stat__num{
  font-size:26px;
  font-weight:700;
  color:var(--primary);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.stat__label{
  margin-top:8px;
  font-size:15.5px;
  font-weight:600;
  color:var(--text-1);
}
.stat__text{
  margin-top:8px;
  font-size:14px;
  line-height:1.75;
  color:var(--text-2);
}

/* ---------- 交替图文 ---------- */
.feature-list{
  display:flex;
  flex-direction:column;
  gap:72px;
}
.feature-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.feature-row.is-reverse .feature-media{order:-1}
.feature-media{
  border-radius:var(--r-l);
  overflow:hidden;
  box-shadow:var(--sh-2);
  position:relative;
}
.feature-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .5s ease-out;
}
.feature-row:hover .feature-media img{transform:scale(1.03)}
.feature-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(7,22,38,0) 45%,rgba(7,22,38,.55) 100%);
  pointer-events:none;
}
.feature-index{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.feature-index::after{
  content:"";
  width:36px;
  height:1px;
  background:linear-gradient(90deg,rgba(255,178,91,.6),rgba(255,178,91,0));
}
.feature-title{
  margin-top:12px;
  font-size:22px;
  font-weight:600;
  line-height:1.45;
}
.feature-text p{
  margin-top:14px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--text-2);
}
.feature-points{
  margin-top:20px;
  display:flex;
  flex-direction:column;
  gap:11px;
}
.feature-points li{
  position:relative;
  padding-left:20px;
  font-size:14.5px;
  line-height:1.8;
  color:var(--text-2);
}
.feature-points li::before{
  content:"";
  position:absolute;
  left:2px;
  top:11px;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 3px rgba(31,200,169,.14);
}
.feature-points li b{color:var(--text-1);font-weight:600}

/* ---------- 适用场景 ---------- */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.scene-card{
  position:relative;
  padding:26px 26px 26px 30px;
  border-radius:var(--r-l);
  background:linear-gradient(160deg,rgba(18,42,64,.72),rgba(11,32,51,.5));
  border:1px solid var(--line);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.scene-card::before{
  content:"";
  position:absolute;
  left:0;
  top:26px;
  bottom:26px;
  width:3px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--primary),rgba(31,200,169,.15));
}
.scene-card:hover{
  transform:translateY(-2px);
  border-color:var(--line-strong);
  box-shadow:var(--sh-2);
}
.scene-card h3{
  font-size:18px;
  font-weight:600;
  line-height:1.5;
}
.scene-card p{
  margin-top:10px;
  font-size:14.5px;
  line-height:1.8;
  color:var(--text-2);
}
.scene-card .scene-tag{
  display:inline-block;
  margin-top:16px;
  font-size:12px;
  letter-spacing:.04em;
  color:var(--accent);
  padding:5px 11px;
  border-radius:var(--r-pill);
  background:rgba(255,178,91,.12);
}

/* ---------- FAQ ---------- */
.faq-layout{
  display:grid;
  grid-template-columns:minmax(0,3fr) minmax(0,7fr);
  gap:44px;
  align-items:start;
}
.faq-aside h2{
  font-size:clamp(22px,2.4vw,28px);
  font-weight:700;
  line-height:1.4;
}
.faq-aside p{
  margin-top:12px;
  font-size:14.5px;
  line-height:1.8;
  color:var(--text-2);
}
.faq-aside .link-arrow{margin-top:20px}
.faq-list{
  display:flex;
  flex-direction:column;
  gap:14px;
}
.faq-item{
  border-radius:var(--r-m);
  background:var(--panel-glass);
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  overflow:hidden;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item[open]{
  border-color:var(--line-strong);
  box-shadow:0 12px 30px rgba(0,0,0,.3);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  font-size:16.5px;
  font-weight:600;
  line-height:1.6;
  transition:color .2s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item summary .mark{
  flex-shrink:0;
  width:26px;
  height:26px;
  border-radius:50%;
  border:1px solid var(--line-strong);
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  font-weight:600;
  line-height:1;
  transition:background .2s ease-out,transform .22s ease-out;
}
.faq-item[open] summary .mark{background:rgba(31,200,169,.16);transform:rotate(180deg)}
.faq-item .faq-answer{
  padding:0 22px 20px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  border-top:1px solid transparent;
}
.faq-item[open] .faq-answer{
  border-top:1px solid var(--line);
  background-image:linear-gradient(90deg,rgba(31,200,169,.45),rgba(31,200,169,0));
  background-repeat:no-repeat;
  background-size:100% 1px;
  background-position:top left;
  padding-top:16px;
}

/* ---------- 继续了解 ---------- */
.next-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.next-card{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:26px;
  border-radius:var(--r-l);
  background:var(--panel-glass);
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.next-card:hover{
  transform:translateY(-2px);
  border-color:var(--line-strong);
  box-shadow:var(--sh-2);
}
.next-card h3{font-size:17.5px;font-weight:600;line-height:1.5}
.next-card p{font-size:14px;line-height:1.75;color:var(--text-2)}
.next-card .link-arrow{margin-top:auto;font-size:13.5px}

/* ---------- 收尾 CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-l);
  border:1px solid var(--line-strong);
  background:
    linear-gradient(112deg,rgba(31,200,169,.12) 0%,rgba(31,200,169,0) 46%,rgba(255,178,91,.10) 100%),
    linear-gradient(160deg,#0B2033 0%,#071626 100%);
  padding:44px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  box-shadow:var(--sh-2);
}
.cta-band::before{
  content:"";
  position:absolute;
  left:-60px;
  top:-80px;
  width:300px;
  height:300px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(31,200,169,.18),transparent 68%);
  pointer-events:none;
}
.cta-band__text{max-width:640px;position:relative;z-index:1}
.cta-band__text h2{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:700;
  line-height:1.4;
}
.cta-band__text p{
  margin-top:12px;
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
}
.cta-band .btn{position:relative;z-index:1}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:8px;
  background:linear-gradient(180deg,#071626 0%,#050F1C 100%);
  border-top:1px solid var(--line);
  padding:64px 0 0;
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,rgba(31,200,169,0),rgba(31,200,169,.5),rgba(255,178,91,.4),rgba(255,178,91,0));
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:44px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-col h3{
  position:relative;
  font-size:14px;
  font-weight:600;
  color:var(--text-1);
  padding-left:12px;
  margin-bottom:18px;
}
.footer-col h3::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  transform:translateY(-50%);
  width:3px;
  height:13px;
  border-radius:3px;
  background:var(--primary);
}
.footer-col p{
  font-size:14px;
  line-height:1.85;
  color:var(--text-2);
  max-width:340px;
}
.footer-list{
  display:flex;
  flex-direction:column;
  gap:11px;
}
.footer-list a{
  font-size:14px;
  color:var(--text-2);
  transition:color .18s ease-out,transform .18s ease-out;
  width:fit-content;
}
.footer-list a:hover{color:var(--primary);transform:translateX(2px)}
.footer-card{
  padding:18px;
  border-radius:var(--r-m);
  background:var(--panel-glass);
  border:1px solid var(--line);
  font-size:13.5px;
  line-height:1.8;
  color:var(--text-2);
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:20px 0 26px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);transition:color .18s ease-out}
.footer-bottom a:hover{color:var(--primary)}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .nav-panel{display:none}
  .header-actions .btn--header{display:none}
  .nav-toggle{display:flex}
}
@media (max-width:992px){
  :root{--sec-gap:64px}
  .stat-strip{grid-template-columns:1fr 1fr;gap:16px}
  .feature-list{gap:52px}
  .feature-row{grid-template-columns:1fr;gap:26px}
  .feature-row.is-reverse .feature-media{order:0}
  .scene-grid{grid-template-columns:1fr}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .next-grid{grid-template-columns:1fr 1fr;gap:16px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px}
}
@media (max-width:768px){
  :root{--sec-gap:52px}
  body{font-size:15px}
  .header-inner{min-height:64px;gap:10px}
  .brand__text b{font-size:15px}
  .banner-inner{padding:34px 0 30px}
  .page-banner{min-height:200px}
  .banner-sub{font-size:15px}
  .section-head{margin-bottom:30px}
  .stat{padding:20px}
  .stat-strip{grid-template-columns:1fr}
  .faq-item summary{padding:16px 18px;font-size:15.5px}
  .faq-item .faq-answer{padding:0 18px 18px;font-size:14.5px}
  .next-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-col p{max-width:none}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .btn{padding:13px 20px;font-size:14.5px}
  .cta-band{padding:30px 20px}
  .cta-band .btn{width:100%}
  .scene-card{padding:22px 20px 22px 24px}
  .status-pill{font-size:12px;padding:7px 12px}
}

/* roulang page: category3 */
:root{
  --bg-deep:#071626;
  --bg-deep-2:#0B2033;
  --panel-glass:rgba(18,42,64,.55);
  --primary:#1FC8A9;
  --primary-glow:rgba(31,200,169,.45);
  --accent:#FFB25B;
  --accent-2:#FF7A6B;
  --text-1:#EAF3FA;
  --text-2:#A7BDD0;
  --text-3:#6B8598;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(31,200,169,.35);
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 2px 10px rgba(0,0,0,.25);
  --sh-2:0 12px 32px rgba(0,0,0,.38);
  --sh-glow:0 0 0 1px rgba(31,200,169,.35),0 8px 28px rgba(31,200,169,.28);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background-color:var(--bg-deep);
  background-image:
    radial-gradient(1200px 620px at 10% -12%,rgba(31,200,169,.10),transparent 60%),
    radial-gradient(900px 520px at 94% 6%,rgba(255,178,91,.07),transparent 62%),
    repeating-linear-gradient(90deg,rgba(255,255,255,.014) 0 1px,transparent 1px 64px),
    repeating-linear-gradient(0deg,rgba(255,255,255,.014) 0 1px,transparent 1px 64px);
  background-attachment:fixed;
}
body::before{
  content:"";position:fixed;left:0;right:0;top:0;height:1px;z-index:70;
  background:linear-gradient(90deg,transparent,rgba(31,200,169,.75),rgba(255,178,91,.6),transparent);
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,textarea{font:inherit;color:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
svg{display:block;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,22,38,.82);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  backdrop-filter:blur(16px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.header__inner{display:flex;align-items:center;gap:16px;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand__mark{
  width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
  background:rgba(31,200,169,.12);border:1px solid var(--line-strong);
  box-shadow:0 0 18px rgba(31,200,169,.18);
}
.brand__mark svg{width:22px;height:22px;}
.brand__text b{font-size:17px;font-weight:700;letter-spacing:.01em;}
.brand__text i{color:var(--primary);font-style:normal;}
.nav-panel{
  display:flex;align-items:center;gap:4px;margin-left:auto;padding:8px;
  border-radius:var(--r-l);background:var(--panel-glass);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
}
.nav-chip{
  position:relative;display:inline-flex;align-items:center;gap:7px;
  padding:8px 12px;border-radius:var(--r-s);font-size:14px;color:var(--text-2);
  border:1px solid transparent;white-space:nowrap;
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.nav-chip svg{width:20px;height:20px;flex:0 0 auto;stroke:currentColor;fill:none;}
.nav-chip:hover{background:rgba(31,200,169,.12);color:var(--text-1);border-color:var(--line-strong);}
.nav-chip.is-active{color:var(--primary);background:rgba(31,200,169,.10);border-color:var(--line-strong);}
.nav-chip.is-active::before{
  content:"";position:absolute;left:-1px;top:50%;transform:translateY(-50%);
  width:3px;height:18px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 10px var(--primary-glow);
}
.nav-panel__cta{display:none;}
.header__actions{display:flex;align-items:center;gap:10px;margin-left:8px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-m);padding:0;
  border:1px solid var(--line-strong);background:rgba(31,200,169,.08);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;margin:3px auto;transition:transform .2s ease-out,opacity .2s ease-out;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;padding:14px 28px;border-radius:var(--r-m);
  border:1px solid transparent;transition:all .2s ease-out;
}
.btn--primary{background:var(--primary);color:#04141F;box-shadow:var(--sh-glow);}
.btn--primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 4px 34px rgba(31,200,169,.45);}
.btn--primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(31,200,169,.3),0 4px 14px rgba(31,200,169,.22);}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--text-1);}
.btn--ghost:hover{background:rgba(31,200,169,.10);border-color:var(--primary);}
.btn--ghost:active{transform:translateY(1px);}
.btn--sm{padding:10px 18px;font-size:14px;border-radius:12px;}
.btn--block{width:100%;}
.btn--link{background:none;border:0;padding:0;color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.btn--link svg{width:16px;height:16px;stroke:currentColor;fill:none;transition:transform .2s ease-out;}
.btn--link:hover svg{transform:translateX(3px);}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section--tight{padding:52px 0;}
.section--alt{background:var(--bg-deep-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px;}
.section-head h2{font-size:clamp(24px,2.8vw,32px);font-weight:700;line-height:1.3;margin-top:12px;letter-spacing:-.01em;}
.section-head__note{font-size:14px;color:var(--text-3);max-width:360px;line-height:1.7;}
.badge{
  display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.04em;
  background:rgba(255,178,91,.14);color:var(--accent);border:1px solid rgba(255,178,91,.22);
}
.badge--live{background:rgba(31,200,169,.14);color:var(--primary);border-color:var(--line-strong);}
.badge__dot{width:6px;height:6px;border-radius:50%;background:currentColor;}
.tag{display:inline-flex;align-items:center;padding:3px 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600;}
.tag--high{background:rgba(31,200,169,.14);color:var(--primary);}
.tag--mid{background:rgba(255,178,91,.14);color:var(--accent);}

/* ---------- 栏目头图带 ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
.page-hero__bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.30;filter:saturate(112%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,22,38,.68),rgba(7,22,38,.93) 72%,var(--bg-deep));
}
.page-hero__inner{position:relative;z-index:2;display:flex;flex-direction:column;justify-content:center;min-height:262px;padding:64px 0 56px;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:16px;}
.breadcrumb a{color:var(--text-3);transition:color .2s ease-out;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .current{color:var(--text-2);}
.page-hero h1{
  font-size:clamp(30px,4.2vw,46px);font-weight:700;line-height:1.24;
  letter-spacing:-.015em;max-width:940px;
}
.page-hero__lead{margin-top:14px;font-size:17px;line-height:1.7;color:var(--text-2);max-width:780px;}

/* ---------- 状态条 ---------- */
.status-bar{
  display:flex;align-items:center;gap:24px;flex-wrap:wrap;
  padding:20px 24px;border-radius:var(--r-l);
  background:var(--panel-glass);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
}
.status-bar__main{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2);}
.dot{width:8px;height:8px;border-radius:50%;background:var(--primary);flex:0 0 auto;}
.dot--live{animation:pulse 2.4s ease-out infinite;}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(31,200,169,.4);}
  70%{box-shadow:0 0 0 12px rgba(31,200,169,0);}
  100%{box-shadow:0 0 0 0 rgba(31,200,169,0);}
}
.status-metrics{display:flex;gap:32px;flex-wrap:wrap;margin-left:auto;}
.metric b{display:block;font-size:24px;font-weight:700;color:var(--primary);line-height:1.2;font-family:Inter,system-ui,sans-serif;}
.metric span{font-size:12px;color:var(--text-3);letter-spacing:.04em;}

/* ---------- 清单栅格 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.check-card{
  display:flex;align-items:flex-start;gap:14px;
  padding:20px 22px;border-radius:var(--r-m);
  background:rgba(18,42,64,.42);border:1px solid var(--line);
  transition:transform .2s ease-out,border-color .2s ease-out,background .2s ease-out,box-shadow .2s ease-out;
}
.check-card:hover,.check-card:focus-visible{
  transform:translateY(-2px);border-color:var(--line-strong);
  background:rgba(31,200,169,.08);box-shadow:var(--sh-2);
}
.check-card__idx{
  flex:0 0 auto;margin-top:3px;padding:2px 9px;border-radius:var(--r-pill);
  font-size:13px;font-weight:700;color:var(--accent);
  border:1px solid rgba(255,178,91,.35);font-family:Inter,system-ui,sans-serif;
}
.check-card__body{flex:1;min-width:0;}
.check-card h3{font-size:17px;font-weight:600;line-height:1.5;}
.check-card p{margin-top:6px;font-size:14px;line-height:1.7;color:var(--text-2);}
.check-card__arrow{
  flex:0 0 auto;margin-top:6px;color:var(--primary);
  transition:transform .2s ease-out;
}
.check-card__arrow svg{width:18px;height:18px;stroke:currentColor;fill:none;}
.check-card:hover .check-card__arrow{transform:translateX(3px);}

/* ---------- 图文 ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
.split__media img{width:100%;border-radius:var(--r-l);border:1px solid var(--line);box-shadow:var(--sh-2);}
.split__media figcaption{margin-top:12px;font-size:13px;color:var(--text-3);text-align:center;}
.split h2{font-size:clamp(24px,2.8vw,32px);font-weight:700;line-height:1.32;margin-top:12px;}
.split p{margin-top:16px;color:var(--text-2);font-size:15.5px;line-height:1.85;}
.tick-list{margin-top:20px;}
.tick-list li{position:relative;padding-left:22px;margin-top:12px;font-size:15px;color:var(--text-2);line-height:1.75;}
.tick-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 10px var(--primary-glow);
}
.tick-list li b{color:var(--text-1);font-weight:600;}

/* ---------- 要点对照 ---------- */
.rank-wrap{
  border-radius:var(--r-l);border:1px solid var(--line);overflow:hidden;
  background:var(--panel-glass);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
}
.rank-row{
  display:grid;grid-template-columns:64px minmax(140px,1.1fr) minmax(180px,1.7fr) 96px;
  gap:16px;align-items:center;padding:18px 24px;border-top:1px solid var(--line);
  transition:background .2s ease-out;
}
.rank-row:first-child{border-top:0;}
.rank-row--head{
  padding:14px 24px;font-size:13px;color:var(--text-3);letter-spacing:.04em;
  background:rgba(31,200,169,.06);
}
.rank-row:not(.rank-row--head):hover{background:rgba(31,200,169,.07);}
.rank-row__no{font-family:Inter,system-ui,sans-serif;font-weight:700;font-size:16px;color:var(--accent);}
.rank-row__name{font-weight:600;font-size:16px;}
.rank-row__why{font-size:14px;color:var(--text-2);line-height:1.7;}
.rank-row__level{justify-self:start;}

/* ---------- FAQ ---------- */
.faq{display:grid;grid-template-columns:minmax(220px,30%) minmax(0,1fr);gap:40px;align-items:start;}
.faq__aside h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.35;margin-top:12px;}
.faq__aside p{margin-top:14px;font-size:14px;color:var(--text-3);line-height:1.75;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-m);margin-bottom:12px;overflow:hidden;
  background:rgba(18,42,64,.42);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  transition:border-color .2s ease-out;
}
.faq-item[open]{border-color:var(--line-strong);}
.faq-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:18px 22px;font-size:17px;font-weight:600;cursor:pointer;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item__icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line-strong);color:var(--primary);font-size:15px;line-height:1;
  transition:transform .2s ease-out,background .2s ease-out;
}
.faq-item[open] .faq-item__icon{transform:rotate(45deg);background:rgba(31,200,169,.14);}
.faq-item__body{
  padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2);
  border-top:1px solid transparent;transition:border-color .2s ease-out;
}
.faq-item[open] .faq-item__body{border-top-color:rgba(31,200,169,.25);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  padding:44px;border-radius:var(--r-l);border:1px solid var(--line-strong);
  background:linear-gradient(118deg,rgba(31,200,169,.16),rgba(11,32,51,.92) 46%),var(--bg-deep-2);
}
.cta-band::after{
  content:"";position:absolute;right:-8%;top:-60%;width:520px;height:240px;
  transform:rotate(-14deg);
  background:linear-gradient(90deg,transparent,rgba(31,200,169,.13),transparent);
  pointer-events:none;
}
.cta-band__text{position:relative;z-index:2;max-width:640px;}
.cta-band__text h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35;}
.cta-band__text p{margin-top:12px;font-size:15px;color:var(--text-2);line-height:1.8;}
.cta-band__actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap;}
.trust-row{display:flex;gap:28px;flex-wrap:wrap;margin-top:24px;justify-content:center;}
.trust-row div{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.trust-row svg{width:18px;height:18px;stroke:var(--primary);fill:none;}

/* ---------- 继续了解 ---------- */
.mini-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.mini-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-m);border:1px solid var(--line);background:rgba(18,42,64,.42);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.mini-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--sh-2);}
.mini-card__media{aspect-ratio:16/10;overflow:hidden;background:linear-gradient(150deg,#0B2033,#123c52);}
.mini-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.mini-card:hover .mini-card__media img{transform:scale(1.04);}
.mini-card__body{padding:18px 20px 22px;}
.mini-card__body h3{font-size:17px;font-weight:600;line-height:1.5;}
.mini-card__body p{margin-top:8px;font-size:14px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.mini-card__link{margin-top:14px;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);}
.mini-card__link svg{width:16px;height:16px;stroke:currentColor;fill:none;transition:transform .2s ease-out;}
.mini-card:hover .mini-card__link svg{transform:translateX(3px);}
.back-row{display:flex;justify-content:center;margin-top:40px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-deep-2);border-top:1px solid var(--line);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding:64px 0 36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-col--wide p{font-size:14px;line-height:1.8;color:var(--text-2);max-width:360px;}
.footer-col h3{position:relative;font-size:14px;font-weight:600;padding-left:12px;margin-bottom:16px;}
.footer-col h3::before{content:"";position:absolute;left:0;top:4px;width:3px;height:15px;border-radius:2px;background:var(--primary);}
.footer-list a{display:block;font-size:14px;color:var(--text-2);padding:6px 0;transition:color .2s ease-out,transform .2s ease-out;}
.footer-list a:hover{color:var(--primary);transform:translateX(3px);}
.footer-card{
  padding:16px 18px;border-radius:var(--r-m);border:1px solid var(--line);
  background:var(--panel-glass);font-size:13.5px;line-height:1.8;color:var(--text-2);
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 32px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--primary);}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .split{gap:36px;}
}
@media (max-width:992px){
  .section{padding:64px 0;}
  .section--tight{padding:44px 0;}
  .header__actions .btn{display:none;}
  .nav-toggle{display:block;}
  .nav-panel{
    position:fixed;left:16px;right:16px;top:80px;z-index:80;
    flex-direction:column;align-items:stretch;gap:10px;padding:16px;
    border-radius:var(--r-l);background:rgba(7,22,38,.98);
    box-shadow:var(--sh-2);max-height:calc(100vh - 104px);overflow:auto;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
  }
  .nav-panel.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-chip{padding:14px 16px;font-size:15px;}
  .nav-panel__cta{display:inline-flex;width:100%;margin-top:6px;}
  .split{grid-template-columns:1fr;gap:28px;}
  .faq{grid-template-columns:1fr;gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 28px;}
  .mini-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .check-grid{grid-template-columns:1fr;gap:14px;}
  .status-bar{gap:18px;padding:18px 20px;}
  .status-metrics{margin-left:0;gap:24px;}
  .rank-row--head{display:none;}
  .rank-row{
    grid-template-columns:44px minmax(0,1fr);gap:8px 12px;
    padding:16px 18px;background:rgba(18,42,64,.36);
  }
  .rank-row__why{grid-column:1 / -1;padding-left:56px;}
  .rank-row__level{grid-column:1 / -1;padding-left:56px;}
  .cta-band{padding:28px 22px;flex-direction:column;align-items:stretch;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{width:100%;}
  .page-hero__inner{padding:48px 0 44px;min-height:220px;}
}
@media (max-width:576px){
  .section{padding:52px 0;}
  .section--tight{padding:38px 0;}
  .mini-grid{grid-template-columns:1fr;gap:16px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .brand__text b{font-size:15.5px;}
  .check-card{padding:18px;}
  .trust-row{gap:16px;justify-content:flex-start;}
}

/* roulang page: category4 */
:root{
  --bg-deep:#071626;
  --bg-deep-2:#0B2033;
  --panel-glass:rgba(18,42,64,.55);
  --panel-soft:rgba(18,42,64,.38);
  --primary:#1FC8A9;
  --primary-dark:#04141F;
  --primary-glow:rgba(31,200,169,.45);
  --accent:#FFB25B;
  --accent-2:#FF7A6B;
  --text-1:#EAF3FA;
  --text-2:#A7BDD0;
  --text-3:#6B8598;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(31,200,169,.35);
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 2px 10px rgba(0,0,0,.25);
  --sh-2:0 12px 32px rgba(0,0,0,.38);
  --sh-glow:0 0 0 1px rgba(31,200,169,.35),0 8px 28px rgba(31,200,169,.28);
  --gap:24px;
  --section:88px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background-color:var(--bg-deep);
  background-image:
    radial-gradient(circle at 12% 8%,rgba(31,200,169,.10),transparent 42%),
    radial-gradient(circle at 88% 4%,rgba(255,178,91,.07),transparent 40%),
    repeating-linear-gradient(0deg,rgba(255,255,255,.016) 0 1px,transparent 1px 44px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.016) 0 1px,transparent 1px 44px);
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--primary) 32%,var(--accent) 68%,transparent);
  opacity:.85;
  z-index:80;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .18s ease-out,opacity .18s ease-out}
a:hover{color:#5EE0C6}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul{padding:0;list-style:none}
input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:var(--section) 0}
.section--tight{padding:64px 0}
.section--alt{background:var(--bg-deep-2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{font-size:clamp(24px,2.8vw,32px);font-weight:700;letter-spacing:.01em}
.section-head h2 span{color:var(--primary)}
.section-sub{margin-top:10px;color:var(--text-2);font-size:15px;max-width:62ch}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;color:var(--accent);text-transform:uppercase;margin-bottom:14px}
.eyebrow::before{content:"";width:20px;height:1px;background:var(--accent)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,22,38,.82);
  backdrop-filter:blur(16px) saturate(130%);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text-1)}
.brand__mark{width:34px;height:34px;display:grid;place-items:center;border-radius:11px;background:linear-gradient(150deg,rgba(31,200,169,.20),rgba(255,178,91,.12));border:1px solid var(--line-strong)}
.brand__mark svg{width:22px;height:22px}
.brand__text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand__text i{font-style:normal;color:var(--primary)}
.nav-panel{
  display:flex;align-items:center;gap:6px;
  padding:7px;
  margin-left:6px;
  border-radius:var(--r-l);
  background:var(--panel-glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh-1);
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-panel::-webkit-scrollbar{display:none}
.nav-chip{
  position:relative;
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 12px;border-radius:var(--r-s);
  font-size:13.5px;font-weight:500;color:var(--text-2);
  white-space:nowrap;border:1px solid transparent;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.nav-chip svg{width:17px;height:17px;stroke:currentColor;fill:none;flex:0 0 auto}
.nav-chip:hover{background:rgba(31,200,169,.12);color:var(--text-1);border-color:var(--line-strong)}
.nav-chip.is-active{color:var(--primary);background:rgba(31,200,169,.10);border-color:var(--line-strong);font-weight:600}
.nav-chip.is-active::before{content:"";position:absolute;left:0;top:22%;bottom:22%;width:3px;border-radius:3px;background:var(--primary)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-m);
  border:1px solid var(--line);background:var(--panel-glass);
  place-items:center;
}
.nav-toggle span{display:block;width:17px;height:1.6px;background:var(--text-1);border-radius:2px;position:relative;transition:transform .2s ease-out,opacity .2s ease-out}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:17px;height:1.6px;background:var(--text-1);border-radius:2px;transition:transform .2s ease-out}
.nav-toggle span::before{top:-5.5px}
.nav-toggle span::after{top:5.5px}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{transform:translateY(5.5px) rotate(45deg)}
.nav-toggle.is-open span::after{transform:translateY(-5.5px) rotate(-45deg)}
.mobile-drawer{
  display:none;
  position:fixed;inset:72px 0 0 0;z-index:55;
  background:rgba(7,22,38,.97);
  backdrop-filter:blur(14px);
  padding:20px;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer .drawer-card{
  display:flex;align-items:center;gap:10px;
  padding:14px 16px;margin-bottom:10px;
  border-radius:var(--r-m);
  background:var(--panel-glass);border:1px solid var(--line);
  color:var(--text-2);font-size:15px;
}
.mobile-drawer .drawer-card svg{width:18px;height:18px;stroke:currentColor;fill:none}
.mobile-drawer .drawer-card.is-active{color:var(--primary);border-color:var(--line-strong);background:rgba(31,200,169,.10)}
.drawer-cta{margin-top:16px;display:block;text-align:center}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-m);
  font-weight:600;font-size:15px;line-height:1;letter-spacing:.01em;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.btn svg{width:16px;height:16px;stroke:currentColor;fill:none}
.btn--primary{background:var(--primary);color:var(--primary-dark);box-shadow:var(--sh-glow)}
.btn--primary:hover{background:#31D6B7;color:var(--primary-dark);transform:translateY(-1px);box-shadow:0 4px 34px rgba(31,200,169,.45)}
.btn--primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(31,200,169,.4),0 4px 14px rgba(31,200,169,.2)}
.btn--ghost{background:transparent;color:var(--text-1);border:1px solid var(--line-strong)}
.btn--ghost:hover{background:rgba(31,200,169,.10);border-color:var(--primary);color:#fff}
.btn--sm{padding:11px 18px;font-size:14px;border-radius:12px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary)}
.link-arrow svg{width:15px;height:15px;stroke:currentColor;fill:none;transition:transform .18s ease-out}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- 栏目头图带 ---------- */
.hero-band{
  position:relative;
  min-height:240px;
  display:flex;align-items:flex-end;
  padding:34px 0 30px;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center 38%;
  border-bottom:1px solid var(--line);
}
.hero-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(7,22,38,.94) 0%,rgba(7,22,38,.78) 46%,rgba(11,32,51,.62) 100%);
}
.hero-band .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:14px}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--primary)}
.crumb span.sep{color:var(--text-3)}
.hero-band h1{
  font-size:clamp(28px,4vw,42px);
  font-weight:700;line-height:1.28;letter-spacing:.01em;
}
.hero-band .lede{margin-top:14px;max-width:66ch;color:var(--text-2);font-size:16px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.04em;
  background:rgba(255,178,91,.14);color:var(--accent);
}
.tag--online{background:rgba(31,200,169,.14);color:var(--primary)}
.tag--online::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary)}
.tag--note{background:rgba(255,122,107,.14);color:var(--accent-2)}
.tag--note::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-2)}

/* ---------- 对照矩阵 ---------- */
.matrix{
  border-radius:var(--r-l);
  background:var(--panel-glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh-2);
  overflow:hidden;
}
.matrix-head{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:24px;padding:18px 28px;
  border-bottom:1px solid var(--line);
  background:rgba(31,200,169,.06);
}
.matrix-head span{font-size:12px;letter-spacing:.1em;color:var(--text-2);text-transform:uppercase}
.matrix-row{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:24px;padding:26px 28px;
  border-bottom:1px solid var(--line);
  transition:background .2s ease-out;
}
.matrix-row:last-child{border-bottom:0}
.matrix-row:hover{background:rgba(31,200,169,.04)}
.matrix-ledger{display:flex;gap:16px;align-items:flex-start}
.matrix-num{
  font-family:var(--font-num);
  font-size:22px;font-weight:700;color:var(--accent);
  line-height:1;flex:0 0 auto;padding-top:3px;min-width:34px;
}
.matrix-ledger h3{font-size:18px;font-weight:600;line-height:1.5}
.matrix-ledger p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--text-2)}
.matrix-keys{display:flex;flex-direction:column;gap:10px}
.matrix-keys .tag{align-self:flex-start}
.matrix-keys ul{display:grid;gap:9px}
.matrix-keys li{
  position:relative;padding-left:20px;
  font-size:14.5px;line-height:1.7;color:var(--text-1);
}
.matrix-keys li::before{
  content:"";position:absolute;left:2px;top:9px;
  width:7px;height:7px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 8px var(--primary-glow);
}

/* ---------- 场景卡 ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap)}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap)}
.card{
  padding:28px;border-radius:var(--r-l);
  background:var(--panel-glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
.card h3{font-size:18px;font-weight:600;line-height:1.5}
.card p{margin-top:10px;font-size:14.5px;line-height:1.75;color:var(--text-2)}
.card-icon{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:rgba(31,200,169,.12);border:1px solid var(--line-strong);margin-bottom:16px;
}
.card-icon svg{width:20px;height:20px;stroke:var(--primary);fill:none;stroke-width:1.6}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap);position:relative}
.flow-item{position:relative;padding:26px 22px;border-radius:var(--r-l);background:var(--panel-soft);border:1px solid var(--line)}
.flow-item::after{
  content:"";position:absolute;right:-14px;top:44px;width:12px;height:1px;
  background:linear-gradient(90deg,var(--line-strong),transparent);
}
.flow-item:last-child::after{display:none}
.flow-num{font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--accent)}
.flow-item h3{margin-top:12px;font-size:17px;font-weight:600}
.flow-item p{margin-top:8px;font-size:14px;color:var(--text-2);line-height:1.72}

/* ---------- 图文块 ---------- */
.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:40px;align-items:center}
.split--reverse .split-media{order:2}
.split-media{border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2);position:relative}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;filter:saturate(105%)}
.split-body h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.4}
.split-body p{margin-top:14px;color:var(--text-2);font-size:15.5px;line-height:1.8}
.check-list{margin-top:20px;display:grid;gap:12px}
.check-list li{position:relative;padding-left:26px;font-size:15px;color:var(--text-1);line-height:1.7}
.check-list li::before{
  content:"";position:absolute;left:0;top:8px;width:14px;height:14px;border-radius:4px;
  background:rgba(31,200,169,.16);border:1px solid var(--line-strong);
}
.check-list li::after{
  content:"";position:absolute;left:4px;top:12px;width:6px;height:3px;
  border-left:2px solid var(--primary);border-bottom:2px solid var(--primary);
  transform:rotate(-45deg);
}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:minmax(0,.42fr) minmax(0,1fr);gap:40px;align-items:start}
.faq-aside h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.4}
.faq-aside p{margin-top:12px;color:var(--text-2);font-size:15px}
.faq-list{display:grid;gap:14px}
.faq-item{
  border-radius:var(--r-m);
  background:var(--panel-glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  overflow:hidden;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.faq-item.is-open{border-color:var(--line-strong);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;text-align:left;font-size:16.5px;font-weight:600;color:var(--text-1);line-height:1.55;
}
.faq-q .mark{
  width:26px;height:26px;flex:0 0 auto;border-radius:50%;
  border:1px solid var(--line-strong);display:grid;place-items:center;
  color:var(--primary);font-size:15px;line-height:1;transition:transform .22s ease-out;
}
.faq-item.is-open .faq-q .mark{transform:rotate(180deg);background:rgba(31,200,169,.12)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease-out}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a-inner{
  padding:0 22px 20px;
  color:var(--text-2);font-size:15px;line-height:1.82;
  border-top:1px solid transparent;
}
.faq-item.is-open .faq-a-inner{
  border-top:1px solid var(--line-strong);
  padding-top:16px;
  background:linear-gradient(180deg,rgba(31,200,169,.06),transparent);
}

/* ---------- 继续了解 ---------- */
.next-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-l);background:var(--panel-glass);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.next-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
.next-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.next-card .next-body{padding:20px 22px 24px}
.next-card h3{font-size:17px;font-weight:600;line-height:1.5}
.next-card p{margin-top:8px;font-size:14px;color:var(--text-2);line-height:1.72;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.next-card .link-arrow{margin-top:14px}

/* ---------- CTA 条带 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-l);
  border:1px solid var(--line-strong);
  background:linear-gradient(115deg,rgba(11,32,51,.95),rgba(7,22,38,.95));
  padding:44px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--sh-2);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,transparent 30%,rgba(31,200,169,.12) 60%,transparent 82%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.4;position:relative}
.cta-band p{margin-top:10px;color:var(--text-2);font-size:15px;max-width:52ch;position:relative}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--section);
  background:var(--bg-deep-2);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}
.footer-col--wide p{margin-top:16px;color:var(--text-2);font-size:14.5px;line-height:1.78;max-width:38ch}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .brand__mark{width:32px;height:32px;border-radius:10px}
.footer-brand .brand__text{font-size:16px;font-weight:700}
.footer-col h3{
  position:relative;font-size:14px;font-weight:600;color:var(--text-1);
  padding-left:12px;margin-bottom:16px;letter-spacing:.02em;
}
.footer-col h3::before{content:"";position:absolute;left:0;top:3px;bottom:3px;width:3px;border-radius:3px;background:var(--primary)}
.footer-list{display:grid;gap:10px}
.footer-list a{color:var(--text-2);font-size:14.5px}
.footer-list a:hover{color:var(--primary)}
.footer-card{
  padding:16px 18px;border-radius:var(--r-m);
  background:var(--panel-soft);border:1px solid var(--line);
  color:var(--text-2);font-size:14px;line-height:1.75;
}
.footer-bottom{
  margin-top:44px;padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  color:var(--text-3);font-size:13px;
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--primary)}

/* ---------- 响应式 ---------- */
@media (max-width:1140px){
  .nav-panel{display:none}
  .nav-toggle{display:grid}
  .header-actions .btn{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:992px){
  :root{--section:64px}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow-item::after{display:none}
  .split{grid-template-columns:1fr;gap:26px}
  .split--reverse .split-media{order:0}
  .faq-wrap{grid-template-columns:1fr;gap:26px}
}
@media (max-width:768px){
  :root{--section:52px}
  body{font-size:15px}
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .matrix-head{display:none}
  .matrix-row{grid-template-columns:1fr;gap:16px;padding:22px 20px}
  .matrix-ledger{gap:12px}
  .matrix-num{font-size:20px;min-width:28px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px;text-align:left}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .hero-band{min-height:210px;padding:26px 0 24px}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  .grid-4{grid-template-columns:1fr}
  .card{padding:22px}
  .brand__text{font-size:15px}
  .card h3{font-size:17px}
}

/* roulang page: category5 */
:root{
  --bg-deep:#071626;
  --bg-deep-2:#0B2033;
  --panel-glass:rgba(18,42,64,.55);
  --primary:#1FC8A9;
  --primary-glow:rgba(31,200,169,.45);
  --accent:#FFB25B;
  --accent-2:#FF7A6B;
  --text-1:#EAF3FA;
  --text-2:#A7BDD0;
  --text-3:#6B8598;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(31,200,169,.35);
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 2px 10px rgba(0,0,0,.25);
  --sh-2:0 12px 32px rgba(0,0,0,.38);
  --sh-glow:0 0 0 1px rgba(31,200,169,.35),0 8px 28px rgba(31,200,169,.28);
  --container:1200px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,
*::before,
*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background-color:var(--bg-deep);
  background-image:
    radial-gradient(circle at 14% -8%,rgba(31,200,169,.10),transparent 46%),
    radial-gradient(circle at 88% 2%,rgba(255,178,91,.07),transparent 42%),
    linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:auto,auto,46px 46px,46px 46px;
  background-attachment:fixed;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent 0%,rgba(31,200,169,.75) 38%,rgba(255,178,91,.7) 68%,transparent 100%);
  z-index:120;
  pointer-events:none;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease-out;}
button{font-family:inherit;font-size:inherit;color:inherit;border:0;background:none;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
::selection{background:rgba(31,200,169,.32);color:#fff;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--r-m);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  white-space:nowrap;
  transition:background-color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out,border-color .2s ease-out,color .2s ease-out;
}
.btn--primary{
  background:var(--primary);
  color:#04141F;
  box-shadow:var(--sh-glow);
}
.btn--primary:hover{
  background:#28d6b6;
  box-shadow:0 0 0 1px rgba(31,200,169,.45),0 4px 34px rgba(31,200,169,.45);
  transform:translateY(-1px);
}
.btn--primary:active{
  transform:translateY(1px);
  box-shadow:0 0 0 1px rgba(31,200,169,.4),0 4px 16px rgba(31,200,169,.28);
}
.btn--ghost{
  background:transparent;
  color:var(--text-1);
  border:1px solid var(--line-strong);
}
.btn--ghost:hover{
  background:rgba(31,200,169,.10);
  border-color:var(--primary);
  color:#fff;
}
.btn--sm{padding:10px 18px;font-size:14px;border-radius:var(--r-s);}
.btn--block{width:100%;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--primary);
  font-size:14px;
  font-weight:600;
}
.link-arrow svg{width:16px;height:16px;transition:transform .2s ease-out;}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  font-size:12px;
  letter-spacing:.04em;
  background:rgba(255,178,91,.14);
  color:var(--accent);
  white-space:nowrap;
}
.badge--live{
  background:rgba(31,200,169,.14);
  color:var(--primary);
}
.badge__dot{
  width:6px;height:6px;
  border-radius:50%;
  background:currentColor;
  box-shadow:0 0 8px currentColor;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 11px;
  border-radius:var(--r-pill);
  font-size:12px;
  letter-spacing:.03em;
  color:var(--text-2);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(7,22,38,.82);
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:16px;
  height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand__mark{
  width:36px;
  height:36px;
  border-radius:12px;
  display:grid;
  place-items:center;
  background:linear-gradient(150deg,rgba(31,200,169,.24),rgba(255,178,91,.12));
  border:1px solid var(--line-strong);
  box-shadow:0 0 18px rgba(31,200,169,.18);
}
.brand__mark svg{width:21px;height:21px;}
.brand__text{
  font-size:17px;
  font-weight:700;
  letter-spacing:.01em;
  white-space:nowrap;
}
.brand__text i{font-style:normal;color:var(--primary);}

.nav-panel{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:4px;
  padding:6px;
  border-radius:var(--r-l);
  background:var(--panel-glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.nav-chip{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:8px 12px;
  border-radius:var(--r-s);
  font-size:13.5px;
  color:var(--text-2);
  border:1px solid transparent;
  white-space:nowrap;
  transition:background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.nav-chip svg{
  width:19px;
  height:19px;
  stroke:currentColor;
  flex-shrink:0;
}
.nav-chip:hover{
  background:rgba(31,200,169,.12);
  border-color:var(--line-strong);
  color:var(--text-1);
}
.nav-chip.is-active{
  color:var(--primary);
  background:rgba(31,200,169,.12);
  border-color:var(--line-strong);
  box-shadow:inset 3px 0 0 var(--primary);
  font-weight:600;
}
.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.menu-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:var(--r-s);
  border:1px solid var(--line);
  background:rgba(18,42,64,.55);
  place-items:center;
}
.menu-toggle span{
  display:block;
  width:18px;
  height:2px;
  background:var(--text-1);
  border-radius:2px;
  position:relative;
  transition:background-color .2s ease-out;
}
.menu-toggle span::before,
.menu-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  background:var(--text-1);
  border-radius:2px;
  transition:transform .2s ease-out;
}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}
.menu-toggle.is-open span{background:transparent;}
.menu-toggle.is-open span::before{transform:translateY(6px) rotate(45deg);}
.menu-toggle.is-open span::after{transform:translateY(-6px) rotate(-45deg);}

.mobile-drawer{
  position:fixed;
  inset:72px 0 0 0;
  z-index:70;
  padding:18px 20px 28px;
  background:rgba(7,22,38,.97);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  overflow-y:auto;
  display:none;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer__title{
  font-size:13px;
  letter-spacing:.08em;
  color:var(--text-3);
  margin-bottom:12px;
}
.mobile-chip{
  display:flex;
  align-items:center;
  gap:10px;
  padding:14px 16px;
  margin-bottom:10px;
  border-radius:var(--r-m);
  background:var(--panel-glass);
  border:1px solid var(--line);
  color:var(--text-2);
  font-size:15px;
}
.mobile-chip svg{width:20px;height:20px;stroke:currentColor;flex-shrink:0;}
.mobile-chip.is-active{
  color:var(--primary);
  border-color:var(--line-strong);
  box-shadow:inset 3px 0 0 var(--primary);
  font-weight:600;
}
.mobile-drawer .btn{margin-top:14px;}

/* ---------- 栏目头图带 ---------- */
.page-hero{
  position:relative;
  min-height:280px;
  display:flex;
  align-items:center;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero__bg{
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  opacity:.34;
  filter:saturate(1.05);
}
.page-hero__mask{
  position:absolute;
  inset:0;
  background:linear-gradient(96deg,rgba(7,22,38,.97) 0%,rgba(7,22,38,.80) 46%,rgba(11,32,51,.45) 100%);
}
.page-hero__grid{
  position:absolute;
  inset:0;
  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:46px 46px;
  opacity:.6;
}
.page-hero__inner{
  position:relative;
  padding:64px 0 56px;
  max-width:760px;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:18px;
  flex-wrap:wrap;
}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb span{color:var(--text-2);}
.page-hero h1{
  font-size:clamp(28px,3.8vw,42px);
  font-weight:700;
  line-height:1.28;
  letter-spacing:.005em;
  margin-bottom:16px;
}
.page-hero h1 em{
  font-style:normal;
  color:var(--primary);
}
.page-hero__lead{
  font-size:16.5px;
  line-height:1.8;
  color:var(--text-2);
  max-width:640px;
}
.page-hero__meta{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top:22px;
}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--alt{
  background:linear-gradient(180deg,rgba(11,32,51,.72) 0%,rgba(7,22,38,0) 100%);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.section-head__text{max-width:720px;}
.section-head h2{
  font-size:clamp(23px,2.6vw,32px);
  font-weight:700;
  line-height:1.35;
  margin-bottom:12px;
}
.section-head p{
  color:var(--text-2);
  font-size:15.5px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.1em;
  color:var(--accent);
  margin-bottom:12px;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:2px;
  border-radius:2px;
  background:var(--accent);
  opacity:.8;
}

/* ---------- 概览数据条 ---------- */
.stat-bar{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
  margin-top:-42px;
  position:relative;
  z-index:5;
}
.stat-card{
  padding:20px 22px;
  border-radius:var(--r-l);
  background:var(--panel-glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
}
.stat-card__num{
  font-family:var(--font-num);
  font-size:26px;
  font-weight:700;
  color:var(--primary);
  line-height:1.2;
}
.stat-card__num small{
  font-size:13px;
  font-weight:600;
  color:var(--text-2);
  margin-left:4px;
}
.stat-card__label{
  font-size:13.5px;
  color:var(--text-2);
  margin-top:6px;
}
.stat-card__line{
  height:1px;
  margin:14px 0 0;
  background:linear-gradient(90deg,var(--line-strong),transparent);
}

/* ---------- 时间轴 ---------- */
.timeline{
  position:relative;
  margin-top:8px;
}
.timeline__item{
  position:relative;
  padding-left:70px;
  padding-bottom:24px;
}
.timeline__item::before{
  content:"";
  position:absolute;
  left:17px;
  top:34px;
  bottom:-6px;
  width:2px;
  background:linear-gradient(180deg,rgba(31,200,169,.42),rgba(31,200,169,.06));
}
.timeline__item:last-child{padding-bottom:0;}
.timeline__item:last-child::before{display:none;}
.timeline__dot{
  position:absolute;
  left:0;
  top:4px;
  width:36px;
  height:36px;
  border-radius:50%;
  display:grid;
  place-items:center;
  font-family:var(--font-num);
  font-size:12.5px;
  font-weight:700;
  color:var(--primary);
  background:rgba(7,22,38,.92);
  border:1px solid var(--line-strong);
  box-shadow:0 0 0 5px rgba(31,200,169,.07);
}
.tl-card{
  padding:26px 28px;
  border-radius:var(--r-l);
  background:var(--panel-glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.tl-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
  border-color:var(--line-strong);
}
.tl-card__top{
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
  margin-bottom:10px;
}
.tl-card h3{
  font-size:19px;
  font-weight:600;
  line-height:1.5;
}
.tl-card p{
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
}
.tl-card__tags{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  margin-top:16px;
}

/* ---------- 速查字母卡 ---------- */
.az-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
}
.az-card{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:20px;
  border-radius:var(--r-m);
  background:rgba(18,42,64,.42);
  border:1px solid var(--line);
  transition:background-color .22s ease-out,border-color .22s ease-out,transform .22s ease-out,box-shadow .22s ease-out;
}
.az-card:hover{
  background:rgba(18,42,64,.72);
  border-color:var(--line-strong);
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
}
.az-card__letter{
  font-family:var(--font-num);
  font-size:19px;
  font-weight:700;
  color:var(--accent);
  width:34px;
  height:34px;
  flex-shrink:0;
  display:grid;
  place-items:center;
  border-radius:10px;
  background:rgba(255,178,91,.12);
  border:1px solid rgba(255,178,91,.22);
}
.az-card__body h3{
  font-size:15.5px;
  font-weight:600;
  margin-bottom:4px;
}
.az-card__body p{
  font-size:13.5px;
  line-height:1.75;
  color:var(--text-2);
}

/* ---------- 图文区 ---------- */
.split{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:48px;
  align-items:center;
}
.split__text h2{
  font-size:clamp(22px,2.5vw,30px);
  font-weight:700;
  line-height:1.4;
  margin-bottom:16px;
}
.split__text p{
  color:var(--text-2);
  font-size:15.5px;
  margin-bottom:18px;
}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:11px 0;
  border-bottom:1px dashed rgba(255,255,255,.07);
  font-size:15px;
  color:var(--text-1);
}
.check-list li:last-child{border-bottom:0;}
.check-list svg{
  width:18px;
  height:18px;
  flex-shrink:0;
  margin-top:5px;
  stroke:var(--primary);
}
.split__media{
  position:relative;
  border-radius:var(--r-l);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
}
.split__media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}
.split__media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(7,22,38,.05) 40%,rgba(7,22,38,.68) 100%);
  pointer-events:none;
}
.split__caption{
  position:absolute;
  left:22px;
  right:22px;
  bottom:20px;
  z-index:2;
  font-size:13.5px;
  color:var(--text-2);
  line-height:1.7;
}

/* ---------- FAQ ---------- */
.faq-layout{
  display:grid;
  grid-template-columns:30% 1fr;
  gap:40px;
  align-items:start;
}
.faq-aside h2{
  font-size:clamp(21px,2.3vw,27px);
  font-weight:700;
  line-height:1.4;
  margin-bottom:12px;
}
.faq-aside p{
  font-size:14.5px;
  color:var(--text-2);
  line-height:1.8;
}
.faq-aside .link-arrow{margin-top:16px;}
.faq-item{
  border-radius:var(--r-m);
  background:var(--panel-glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .22s ease-out,background-color .22s ease-out;
}
.faq-item.is-open{
  border-color:var(--line-strong);
  background:rgba(20,48,72,.62);
}
.faq-item__q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  text-align:left;
  font-size:16.5px;
  font-weight:600;
  color:var(--text-1);
}
.faq-item__q:hover{color:var(--primary);}
.faq-icon{
  width:26px;
  height:26px;
  flex-shrink:0;
  border-radius:50%;
  display:grid;
  place-items:center;
  border:1px solid var(--line-strong);
  color:var(--primary);
  font-size:16px;
  line-height:1;
  transition:transform .22s ease-out,background-color .22s ease-out;
}
.faq-item.is-open .faq-icon{
  background:rgba(31,200,169,.16);
  transform:rotate(180deg);
}
.faq-item__a{
  max-height:0;
  overflow:hidden;
  transition:max-height .24s ease-out;
}
.faq-item__a-inner{
  padding:0 22px 20px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  border-top:1px solid transparent;
  background-image:linear-gradient(90deg,var(--line-strong),transparent);
  background-size:100% 1px;
  background-repeat:no-repeat;
  background-position:top left;
  padding-top:16px;
}

/* ---------- 继续了解 ---------- */
.more-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.more-card{
  display:flex;
  flex-direction:column;
  border-radius:var(--r-l);
  overflow:hidden;
  background:var(--panel-glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.more-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
  border-color:var(--line-strong);
}
.more-card__media{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:linear-gradient(140deg,#0B2033,#123049);
}
.more-card__media img{
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:.85;
  transition:transform .3s ease-out,opacity .3s ease-out;
}
.more-card:hover .more-card__media img{transform:scale(1.04);opacity:1;}
.more-card__body{
  padding:22px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
}
.more-card__body h3{
  font-size:17.5px;
  font-weight:600;
  line-height:1.5;
}
.more-card:hover .more-card__body h3{color:var(--primary);}
.more-card__body p{
  font-size:14px;
  line-height:1.8;
  color:var(--text-2);
  flex:1;
}
.more-foot{
  display:flex;
  justify-content:center;
  margin-top:36px;
}

/* ---------- CTA 条带 ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-l);
  padding:52px 48px;
  background:linear-gradient(120deg,#0B2033 0%,#0E2A42 58%,#123049 100%);
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
}
.cta-band::before{
  content:"";
  position:absolute;
  top:-60%;
  left:-10%;
  width:130%;
  height:220%;
  background:linear-gradient(102deg,transparent 34%,rgba(31,200,169,.12) 48%,transparent 60%);
  pointer-events:none;
}
.cta-band__inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
}
.cta-band h2{
  font-size:clamp(22px,2.5vw,30px);
  font-weight:700;
  line-height:1.4;
  margin-bottom:10px;
}
.cta-band p{
  color:var(--text-2);
  font-size:15px;
  max-width:560px;
}
.cta-band__actions{
  display:flex;
  gap:12px;
  flex-shrink:0;
}
.trust-row{
  display:flex;
  gap:28px;
  flex-wrap:wrap;
  margin-top:36px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.trust-item{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:var(--text-2);
}
.trust-item svg{
  width:18px;
  height:18px;
  stroke:var(--primary);
  flex-shrink:0;
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:88px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,32,51,.75),rgba(7,22,38,.98));
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:36px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-col--wide p{
  font-size:14px;
  line-height:1.85;
  color:var(--text-2);
  max-width:330px;
}
.footer-col h3{
  position:relative;
  font-size:14px;
  font-weight:600;
  padding-left:12px;
  margin-bottom:18px;
}
.footer-col h3::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  transform:translateY(-50%);
  width:3px;
  height:14px;
  border-radius:2px;
  background:var(--primary);
}
.footer-list{
  display:flex;
  flex-direction:column;
  gap:11px;
}
.footer-list a{
  font-size:14px;
  color:var(--text-2);
}
.footer-list a:hover{color:var(--primary);}
.footer-card{
  padding:18px;
  border-radius:var(--r-m);
  background:rgba(18,42,64,.5);
  border:1px solid var(--line);
  font-size:13.5px;
  line-height:1.8;
  color:var(--text-2);
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom a{color:var(--text-2);}
.footer-bottom a:hover{color:var(--primary);}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .nav-panel{display:none;}
  .header-actions .btn{display:none;}
  .menu-toggle{display:grid;}
  .az-grid{grid-template-columns:repeat(3,1fr);}
  .stat-bar{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;gap:32px;}
  .faq-layout{grid-template-columns:1fr;gap:26px;}
}
@media (max-width:900px){
  .more-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .cta-band__inner{flex-direction:column;align-items:flex-start;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{flex:1;}
}
@media (max-width:768px){
  body{font-size:15px;}
  .section{padding:64px 0;}
  .section--tight{padding:52px 0;}
  .page-hero{min-height:240px;}
  .page-hero__inner{padding:48px 0 42px;}
  .stat-bar{grid-template-columns:1fr;margin-top:-30px;}
  .az-grid{grid-template-columns:repeat(2,1fr);}
  .timeline__item{padding-left:56px;}
  .timeline__dot{width:32px;height:32px;font-size:11.5px;}
  .timeline__item::before{left:15px;top:30px;}
  .tl-card{padding:22px 20px;}
  .cta-band{padding:36px 24px;}
  .cta-band__actions{flex-direction:column;}
  .cta-band__actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .site-footer{padding:52px 0 24px;margin-top:64px;}
}
@media (max-width:576px){
  .container{padding:0 16px;}
  .brand__text{font-size:15px;}
  .more-grid{grid-template-columns:1fr;}
  .az-grid{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .trust-row{gap:16px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}