/* roulang page: index */
:root{
  --c-bg-0:#060B12;
  --c-bg-1:#0B131E;
  --c-bg-2:#101C2A;
  --c-glass:rgba(20,36,54,.55);
  --c-line:rgba(126,186,222,.14);
  --c-line-strong:rgba(126,186,222,.28);
  --c-brand:#1FD1E8;
  --c-brand-deep:#2A6BFF;
  --c-accent:#FF7A2F;
  --c-ok:#34D399;
  --c-tx-1:#EAF2FA;
  --c-tx-2:#A6B7CB;
  --c-tx-3:#6C7E94;
  --r-sm:8px;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-card:0 12px 32px rgba(0,0,0,.35);
  --sp-section:clamp(56px,7vw,112px);
  --nav-h:68px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:86px;}
body{
  margin:0;
  background:var(--c-bg-0);
  color:var(--c-tx-1);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:var(--c-brand);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;color:var(--c-tx-1);letter-spacing:.01em;}
h1{font-size:clamp(30px,4.6vw,52px);line-height:1.2;}
h2{font-size:clamp(24px,3.2vw,36px);}
h3{font-size:20px;font-weight:600;}
p{margin:0 0 1em;color:var(--c-tx-2);}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media(min-width:992px){.container{padding-left:24px;padding-right:24px;}}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  height:var(--nav-h);
  background:var(--c-glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:background .3s ease,border-color .3s ease;
}
.site-header.is-scrolled{background:rgba(9,17,27,.92);border-bottom-color:var(--c-line-strong);}
.nav-wrap{display:flex;align-items:center;gap:18px;height:var(--nav-h);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--c-brand) 0%,var(--c-brand-deep) 100%);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 18px rgba(31,209,232,.28);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{
  font-size:17px;font-weight:700;color:var(--c-tx-1);letter-spacing:.01em;white-space:nowrap;
}
.nav-channels{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-link{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 12px;border-radius:var(--r-btn);
  font-size:14.5px;color:var(--c-tx-2);white-space:nowrap;
  position:relative;
}
.nav-link i{font-size:13px;opacity:.85;}
.nav-link:hover{color:var(--c-tx-1);background:rgba(126,186,222,.07);}
.nav-link.is-active{color:var(--c-tx-1);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--c-accent);box-shadow:0 0 10px rgba(255,122,47,.6);
}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-search{position:relative;display:flex;align-items:center;}
.nav-search i{position:absolute;left:12px;font-size:13px;color:var(--c-tx-3);pointer-events:none;}
.nav-search input{
  width:190px;height:40px;padding:0 12px 0 34px;
  background:rgba(16,28,42,.7);
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  color:var(--c-tx-1);font-size:14px;
  transition:border-color .22s ease,box-shadow .22s ease,width .25s ease;
}
.nav-search input::placeholder{color:var(--c-tx-3);}
.nav-search input:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(31,209,232,.16);width:220px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 18px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:14.5px;font-weight:600;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .22s ease,border-color .22s ease,color .22s ease;
}
.btn.primary{
  background:linear-gradient(135deg,#FF8B45 0%,var(--c-accent) 100%);
  color:#1B0E04;
  box-shadow:inset 0 0 0 1px rgba(255,122,47,.4),0 0 28px rgba(255,122,47,.3);
}
.btn.primary:hover{
  color:#1B0E04;transform:translateY(-1px);
  box-shadow:inset 0 0 0 1px rgba(255,122,47,.5),0 0 40px rgba(255,122,47,.42);
  filter:brightness(1.06);
}
.btn.primary:active{transform:translateY(1px);box-shadow:inset 0 0 0 1px rgba(255,122,47,.4),0 0 18px rgba(255,122,47,.26);}
.btn.ghost{
  background:rgba(16,28,42,.55);border-color:var(--c-line-strong);color:var(--c-tx-1);
}
.btn.ghost:hover{border-color:var(--c-brand);color:var(--c-brand);background:rgba(31,209,232,.08);}
.btn.line{background:transparent;border-color:var(--c-line-strong);color:var(--c-tx-2);}
.btn.line:hover{border-color:var(--c-brand);color:var(--c-brand);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  background:rgba(16,28,42,.6);border:1px solid var(--c-line);color:var(--c-tx-1);
  align-items:center;justify-content:center;font-size:17px;
}
.nav-toggle:hover{border-color:var(--c-brand);color:var(--c-brand);}

/* ============ 抽屉 ============ */
.offcanvas.drawer{background:var(--c-bg-1);color:var(--c-tx-1);border-right:1px solid var(--c-line-strong);width:320px;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--c-line);}
.drawer-title{font-size:15px;font-weight:700;}
.drawer-close{width:40px;height:40px;border-radius:var(--r-btn);background:rgba(16,28,42,.7);border:1px solid var(--c-line);color:var(--c-tx-2);}
.drawer-close:hover{color:var(--c-brand);border-color:var(--c-brand);}
.drawer-body{padding:18px 20px 28px;}
.drawer-search{position:relative;margin-bottom:20px;}
.drawer-search i{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--c-tx-3);font-size:13px;}
.drawer-search input{
  width:100%;height:44px;padding:0 12px 0 34px;
  background:var(--c-bg-2);border:1px solid var(--c-line);border-radius:var(--r-btn);
  color:var(--c-tx-1);font-size:14.5px;
}
.drawer-search input:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(31,209,232,.16);}
.drawer-group-title{font-size:12px;letter-spacing:.02em;color:var(--c-tx-3);text-transform:uppercase;margin-bottom:10px;}
.drawer-link{
  display:flex;align-items:center;gap:10px;min-height:44px;padding:0 12px;border-radius:var(--r-btn);
  color:var(--c-tx-2);font-size:15px;
}
.drawer-link:hover{background:rgba(126,186,222,.08);color:var(--c-tx-1);}
.drawer-link.is-active{color:var(--c-brand);background:rgba(31,209,232,.1);}
.drawer-actions{display:grid;gap:10px;margin-top:22px;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:calc(var(--nav-h) + clamp(48px,7vw,86px)) 0 clamp(48px,6vw,84px);
  background-color:var(--c-bg-0);
  background-image:linear-gradient(180deg,rgba(6,11,18,.86) 0%,rgba(6,11,18,.94) 60%,var(--c-bg-0) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(126,186,222,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(126,186,222,.055) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 30% 20%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 30% 20%,#000 0%,transparent 72%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(28px,4vw,58px);align-items:center;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--r-pill);
  background:rgba(31,209,232,.1);border:1px solid rgba(31,209,232,.32);
  color:var(--c-brand);font-size:12.5px;letter-spacing:.02em;margin-bottom:20px;
}
.hero h1{margin-bottom:18px;}
.hero h1 em{font-style:normal;color:var(--c-brand);}
.hero-sub{font-size:17px;color:var(--c-tx-2);max-width:560px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:36px;}
.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;max-width:600px;}
.stat{
  padding:16px 18px;border-radius:var(--r-card);
  background:var(--c-bg-2);border:1px solid var(--c-line);
}
.stat b{
  display:block;font-size:clamp(20px,2.4vw,26px);color:var(--c-tx-1);
  font-variant-numeric:tabular-nums;letter-spacing:.01em;
}
.stat span{font-size:13px;color:var(--c-tx-3);}
.hero-card{
  position:relative;padding:22px;border-radius:var(--r-lg);
  background:var(--c-glass);border:1px solid var(--c-line-strong);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--sh-card);
}
.hero-card::after{
  content:"";position:absolute;top:0;left:14%;right:14%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,209,232,.7),transparent);
}
.hero-card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.hero-card-head strong{font-size:15px;}
.dot-live{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--c-ok);}
.dot-live::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c-ok);box-shadow:0 0 10px rgba(52,211,153,.8);}
.hero-card img{border-radius:var(--r-card);border:1px solid var(--c-line);}
.hero-card-list{margin-top:16px;display:grid;gap:10px;}
.hero-card-list li{
  display:flex;align-items:center;gap:10px;font-size:14px;color:var(--c-tx-2);
}
.hero-card-list i{color:var(--c-brand);font-size:13px;}

/* ============ 通用板块 ============ */
.section{padding:var(--sp-section) 0;position:relative;}
.section + .section{border-top:1px solid var(--c-line);}
.section.alt{background:var(--c-bg-1);}
.section-head{max-width:720px;margin-bottom:clamp(30px,4vw,52px);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.02em;
  color:var(--c-brand);margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--c-brand);}
.section-head h2{margin-bottom:14px;}
.section-head p{font-size:15.5px;color:var(--c-tx-2);margin:0;}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(31,209,232,.1);border:1px solid rgba(31,209,232,.28);
  color:var(--c-brand);font-size:12px;letter-spacing:.02em;
}
.tag.warm{background:rgba(255,122,47,.12);border-color:rgba(255,122,47,.34);color:#FFB183;}

/* ============ 卖点 ============ */
.sell-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.sell-card{
  padding:26px 24px;border-radius:var(--r-card);
  background:var(--c-bg-2);border:1px solid var(--c-line);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.sell-card:hover{transform:translateY(-3px);border-color:var(--c-brand);box-shadow:var(--sh-card);}
.sell-card .ico{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(31,209,232,.18),rgba(42,107,255,.14));
  border:1px solid rgba(31,209,232,.26);color:var(--c-brand);font-size:17px;margin-bottom:16px;
}
.sell-card h3{font-size:17px;margin-bottom:8px;}
.sell-card p{font-size:14.5px;margin:0;}
.sell-card.wide{grid-column:span 2;grid-row:span 1;display:flex;gap:20px;align-items:flex-start;}
.sell-card.wide .ico{margin-bottom:0;flex:0 0 auto;}
.sell-card.mid{grid-column:span 1;}
.sell-card.small{grid-column:span 1;padding:22px 20px;background:var(--c-bg-1);}

/* ============ 演示 ============ */
.demo-row{
  display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,56px);align-items:center;
  padding:clamp(24px,3vw,40px) 0;
}
.demo-row + .demo-row{border-top:1px solid var(--c-line);}
.demo-row.flip .demo-media{order:2;}
.demo-num{
  font-size:44px;font-weight:700;line-height:1;color:transparent;
  -webkit-text-stroke:1px rgba(31,209,232,.55);
  font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.demo-row h3{font-size:clamp(20px,2.3vw,24px);margin-bottom:12px;}
.demo-row p{font-size:15px;max-width:480px;}
.demo-list{margin-top:16px;display:grid;gap:8px;}
.demo-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--c-tx-2);}
.demo-list i{color:var(--c-accent);font-size:12px;margin-top:6px;}
.demo-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);
  border:1px solid var(--c-line);box-shadow:var(--sh-card);
}

/* ============ 证据 ============ */
.proof-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--c-line);border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;
}
.proof-item{background:var(--c-bg-2);padding:26px 22px;text-align:center;}
.proof-item b{display:block;font-size:clamp(24px,3vw,32px);color:var(--c-brand);font-variant-numeric:tabular-nums;}
.proof-item span{font-size:13.5px;color:var(--c-tx-3);}
.quote-track{
  display:grid;grid-auto-flow:column;grid-auto-columns:minmax(300px,1fr);gap:18px;
  overflow-x:auto;padding:26px 2px 10px;scrollbar-width:thin;
}
.quote-track::-webkit-scrollbar{height:6px;}
.quote-track::-webkit-scrollbar-thumb{background:rgba(126,186,222,.24);border-radius:999px;}
.quote-card{
  background:var(--c-bg-2);border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px;
}
.quote-card p{font-size:14.5px;color:var(--c-tx-2);margin-bottom:16px;}
.quote-user{display:flex;align-items:center;gap:12px;}
.quote-avatar{
  width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(31,209,232,.24),rgba(42,107,255,.2));
  border:1px solid rgba(31,209,232,.3);color:var(--c-brand);font-size:14px;font-weight:700;
}
.quote-user strong{display:block;font-size:14px;color:var(--c-tx-1);font-weight:600;}
.quote-user span{font-size:12.5px;color:var(--c-tx-3);}
.logo-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-top:26px;}
.logo-chip{
  height:64px;border-radius:var(--r-card);border:1px solid var(--c-line);background:var(--c-bg-1);
  display:flex;align-items:center;justify-content:center;
  color:var(--c-tx-3);font-size:13.5px;filter:grayscale(1);opacity:.72;
  transition:opacity .25s ease,border-color .25s ease,filter .25s ease;
}
.logo-chip:hover{opacity:1;filter:grayscale(0);border-color:var(--c-line-strong);}

/* ============ 价格 ============ */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start;}
.price-card{
  position:relative;padding:30px 26px;border-radius:var(--r-lg);
  background:var(--c-bg-2);border:1px solid var(--c-line);
  transition:transform .28s ease,border-color .28s ease;
}
.price-card:hover{transform:translateY(-3px);border-color:var(--c-line-strong);}
.price-card.featured{
  background:var(--c-glass);border-color:rgba(255,122,47,.5);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:0 0 34px rgba(255,122,47,.16),var(--sh-card);
  transform:translateY(-4%) scale(1.01);
}
.price-card.featured:hover{transform:translateY(calc(-4% - 3px)) scale(1.01);}
.price-pill{
  position:absolute;top:-11px;left:26px;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--c-accent);color:#1B0E04;font-size:12px;font-weight:700;letter-spacing:.02em;
}
.price-card h3{font-size:18px;margin-bottom:6px;}
.price-desc{font-size:13.5px;color:var(--c-tx-3);margin-bottom:18px;}
.price-num{
  font-size:34px;font-weight:700;color:var(--c-tx-1);font-variant-numeric:tabular-nums;
  display:flex;align-items:baseline;gap:8px;margin-bottom:20px;
}
.price-num small{font-size:13px;font-weight:400;color:var(--c-tx-3);}
.price-feats{display:grid;gap:10px;margin-bottom:24px;}
.price-feats li{display:flex;gap:10px;font-size:14.5px;color:var(--c-tx-2);}
.price-feats i{color:var(--c-ok);font-size:12px;margin-top:6px;}
.price-card .btn{width:100%;}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;}
.news-card{
  background:var(--c-bg-2);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.news-card:hover{transform:translateY(-2px);border-color:var(--c-brand);box-shadow:var(--sh-card);}
.news-cover{display:block;overflow:hidden;background:var(--c-bg-1);}
.news-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .45s ease;}
.news-card:hover .news-cover img{transform:scale(1.03);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-body h3{font-size:18px;line-height:1.45;}
.news-body h3 a{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body p{
  font-size:14.5px;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;gap:14px;margin-top:auto;padding-top:10px;
  border-top:1px solid var(--c-line);font-size:13px;color:var(--c-tx-3);
}
.news-meta .go{margin-left:auto;color:var(--c-brand);font-size:13px;}
.news-feature .news-cover img{aspect-ratio:16/9;}
.news-feature .news-body h3{font-size:22px;}
.news-side{display:grid;gap:14px;align-content:start;}
.news-mini{
  display:grid;grid-template-columns:104px 1fr;gap:14px;
  background:var(--c-bg-2);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;padding-right:16px;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.news-mini:hover{transform:translateY(-2px);border-color:var(--c-brand);box-shadow:var(--sh-card);}
.news-mini .thumb{overflow:hidden;background:var(--c-bg-1);}
.news-mini .thumb img{width:100%;height:100%;min-height:96px;object-fit:cover;transition:transform .45s ease;}
.news-mini:hover .thumb img{transform:scale(1.03);}
.news-mini .txt{padding:14px 0;display:flex;flex-direction:column;gap:6px;}
.news-mini h3{
  font-size:15px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-mini .mini-meta{font-size:12.5px;color:var(--c-tx-3);margin-top:auto;}
.empty-state{
  border:1px dashed var(--c-line-strong);border-radius:var(--r-lg);
  padding:52px 24px;text-align:center;background:var(--c-bg-2);
}
.empty-state i{font-size:30px;color:var(--c-tx-3);display:block;margin-bottom:14px;}
.empty-state p{margin-bottom:16px;font-size:14.5px;color:var(--c-tx-2);}

/* ============ FAQ ============ */
.faq-wrap{
  background:var(--c-glass);border:1px solid var(--c-line);border-radius:var(--r-lg);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  padding:8px;box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.faq-item + .faq-item{border-top:1px solid var(--c-line);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:20px 18px;background:transparent;border:0;color:var(--c-tx-1);
  font-size:16px;font-weight:600;cursor:pointer;border-radius:var(--r-card);
  transition:color .22s ease,background .22s ease;
}
.faq-q:hover{color:var(--c-brand);background:rgba(31,209,232,.05);}
.faq-q .mark{
  margin-left:auto;flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  border:1px solid var(--c-line-strong);position:relative;
  transition:border-color .25s ease,background .25s ease;
}
.faq-q .mark::before,.faq-q .mark::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--c-tx-2);
  transform:translate(-50%,-50%);transition:transform .28s ease,background .25s ease;
}
.faq-q .mark::before{width:11px;height:1.5px;}
.faq-q .mark::after{width:1.5px;height:11px;}
.faq-item.open .faq-q{color:var(--c-brand);}
.faq-item.open .faq-q .mark{border-color:var(--c-brand);background:rgba(31,209,232,.12);}
.faq-item.open .faq-q .mark::before,.faq-item.open .faq-q .mark::after{background:var(--c-brand);}
.faq-item.open .faq-q .mark::after{transform:translate(-50%,-50%) rotate(90deg) scaleY(0);}
.faq-a{display:none;padding:0 18px 22px 18px;}
.faq-item.open .faq-a{display:block;}
.faq-a p{font-size:15px;color:var(--c-tx-2);margin:0;}

/* ============ CTA 带 ============ */
.cta-band{position:relative;overflow:hidden;padding:clamp(48px,6vw,84px) 0;}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(ellipse at 50% 40%,rgba(255,122,47,.16) 0%,rgba(6,11,18,0) 68%);
}
.cta-inner{
  position:relative;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:24px;padding:clamp(26px,3.4vw,40px) clamp(24px,3.4vw,42px);
  border:1px solid var(--c-line-strong);border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(16,28,42,.92) 0%,rgba(11,19,30,.86) 100%);
}
.cta-inner h2{font-size:clamp(21px,2.6vw,28px);margin-bottom:10px;}
.cta-inner p{margin:0;font-size:15px;color:var(--c-tx-2);max-width:600px;}

/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--c-line);background:var(--c-bg-1);padding-top:clamp(44px,5vw,72px);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:clamp(22px,3vw,44px);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:32px;height:32px;}
.footer-brand span{font-size:16px;font-weight:700;}
.site-footer p{font-size:14px;color:var(--c-tx-3);}
.footer-title{font-size:14px;font-weight:700;color:var(--c-tx-1);margin-bottom:16px;letter-spacing:.01em;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:var(--c-tx-3);display:inline-flex;align-items:center;gap:8px;min-height:32px;}
.footer-links a:hover{color:var(--c-brand);}
.footer-contact li{font-size:14px;color:var(--c-tx-3);display:flex;gap:10px;align-items:flex-start;margin-bottom:10px;}
.footer-contact i{color:var(--c-brand);font-size:13px;margin-top:6px;}
.footer-bottom{
  margin-top:clamp(32px,4vw,52px);padding:20px 0 28px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--c-tx-3);
}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:26px;bottom:26px;z-index:1035;
  display:inline-flex;align-items:center;gap:10px;
  padding:0 20px;min-height:50px;border-radius:var(--r-pill);
  background:linear-gradient(135deg,#FF8B45 0%,var(--c-accent) 100%);
  color:#1B0E04;font-size:14.5px;font-weight:700;
  box-shadow:inset 0 0 0 1px rgba(255,122,47,.4),0 0 28px rgba(255,122,47,.34);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .35s ease,transform .35s ease,box-shadow .3s ease,visibility .35s;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{
  color:#1B0E04;transform:translateY(-1px);
  box-shadow:inset 0 0 0 1px rgba(255,122,47,.5),0 0 40px rgba(255,122,47,.5);
  filter:brightness(1.06);
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s ease-out,transform .42s ease-out;}
.reveal.in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media(max-width:1199px){
  .nav-search input{width:150px;}
  .nav-search input:focus{width:170px;}
  .nav-channels .nav-link{padding:9px 9px;font-size:14px;}
}
@media(max-width:1100px){
  .nav-search{display:none;}
}
@media(max-width:991px){
  .nav-channels{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-right .btn.ghost{display:none;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-card{max-width:560px;}
  .sell-grid{grid-template-columns:repeat(2,1fr);}
  .sell-card.wide{grid-column:span 2;}
  .demo-row{grid-template-columns:1fr;gap:24px;}
  .demo-row.flip .demo-media{order:0;}
  .proof-bar{grid-template-columns:repeat(2,1fr);}
  .logo-wall{grid-template-columns:repeat(3,1fr);}
  .price-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto;}
  .price-card.featured{transform:none;}
  .price-card.featured:hover{transform:translateY(-3px);}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  body{padding-bottom:72px;}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;justify-content:center;
    box-shadow:inset 0 1px 0 rgba(255,255,255,.18),0 0 28px rgba(255,122,47,.28);
  }
}
@media(max-width:575px){
  body{font-size:15.5px;}
  .brand-text{font-size:14px;white-space:normal;line-height:1.3;max-width:150px;}
  .hero{padding-top:calc(var(--nav-h) + 36px);}
  .hero-stats{grid-template-columns:1fr;gap:10px;}
  .hero-actions .btn{width:100%;}
  .sell-grid{grid-template-columns:1fr;}
  .sell-card.wide{grid-column:span 1;display:block;}
  .sell-card.wide .ico{margin-bottom:16px;}
  .proof-bar{grid-template-columns:1fr;}
  .logo-wall{grid-template-columns:repeat(2,1fr);}
  .news-mini{grid-template-columns:88px 1fr;gap:12px;padding-right:12px;}
  .quote-track{grid-auto-columns:minmax(260px,1fr);}
  .footer-grid{grid-template-columns:1fr;}
  .cta-inner{padding:24px 20px;}
  .cta-inner .btn{width:100%;}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{transition:none !important;animation:none !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --c-bg-0:#060B12;
  --c-bg-1:#0B131E;
  --c-bg-2:#101C2A;
  --c-glass:rgba(20,36,54,0.55);
  --c-line:rgba(126,186,222,0.14);
  --c-line-strong:rgba(126,186,222,0.28);
  --c-brand:#1FD1E8;
  --c-brand-deep:#2A6BFF;
  --c-accent:#FF7A2F;
  --c-ok:#34D399;
  --c-tx-1:#EAF2FA;
  --c-tx-2:#A6B7CB;
  --c-tx-3:#6C7E94;
  --r-sm:8px;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-card:0 12px 32px rgba(0,0,0,.35);
  --sh-soft:0 6px 20px rgba(0,0,0,.28);
  --sp-section:clamp(56px,7vw,112px);
  --nav-h:68px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg-0);
  color:var(--c-tx-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-brand);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--c-brand-deep);}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-tx-1);font-weight:700;}
h1{font-size:clamp(30px,4.6vw,52px);line-height:1.2;}
h2{font-size:clamp(24px,3.2vw,36px);line-height:1.25;}
h3{font-size:clamp(19px,2vw,23px);line-height:1.4;font-weight:600;}
p{margin:0 0 1.1em;}
ul,ol{margin:0 0 1.1em;padding-left:1.2em;}
::selection{background:rgba(31,209,232,.28);}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px;border-radius:4px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media(min-width:992px){.container{padding:0 24px;}}

/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1030;
  min-height:var(--nav-h);
  background:var(--c-glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
  transition:background .3s ease,border-color .3s ease;
}
.site-header::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(255,255,255,0),rgba(234,242,250,.22),rgba(255,255,255,0));
}
.site-header.is-scrolled{background:rgba(9,17,27,.9);border-bottom-color:var(--c-line-strong);}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:18px;
  min-height:var(--nav-h);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-deep));
  box-shadow:0 0 18px rgba(31,209,232,.3);
  flex-shrink:0;
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{
  font-size:15px;
  font-weight:700;
  color:var(--c-tx-1);
  letter-spacing:.01em;
  white-space:nowrap;
}
.nav-channels{
  display:none;
  align-items:center;
  gap:4px;
  margin-left:6px;
  flex:1 1 auto;
  min-width:0;
}
.nav-channels .nav-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 10px;
  font-size:14px;
  color:var(--c-tx-2);
  border-radius:var(--r-btn);
  white-space:nowrap;
  position:relative;
  transition:color .2s ease,background .2s ease;
}
.nav-channels .nav-link i{font-size:13px;color:var(--c-tx-3);transition:color .2s ease;}
.nav-channels .nav-link:hover{color:var(--c-tx-1);background:rgba(126,186,222,.08);}
.nav-channels .nav-link:hover i{color:var(--c-brand);}
.nav-channels .nav-link.is-active{color:var(--c-tx-1);}
.nav-channels .nav-link.is-active i{color:var(--c-accent);}
.nav-channels .nav-link.is-active::after{
  content:"";
  position:absolute;left:10px;right:10px;bottom:2px;height:2px;
  border-radius:2px;
  background:var(--c-accent);
  box-shadow:0 0 10px rgba(255,122,47,.6);
}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto;flex-shrink:0;}
.nav-search{
  display:none;
  align-items:center;
  gap:8px;
  padding:0 12px;
  height:40px;
  min-width:190px;
  border-radius:var(--r-btn);
  background:rgba(16,28,42,.6);
  border:1px solid var(--c-line);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search i{color:var(--c-tx-3);font-size:13px;}
.nav-search input{
  flex:1;min-width:0;
  background:transparent;border:0;outline:0;
  color:var(--c-tx-1);
  font-size:14px;
}
.nav-search input::placeholder{color:var(--c-tx-3);}
.nav-search:focus-within{
  border-color:var(--c-brand);
  box-shadow:0 0 0 3px rgba(31,209,232,.16);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 18px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease,filter .2s ease;
}
.btn.primary{
  background:linear-gradient(135deg,var(--c-accent),#FF9A4F);
  color:#1A0E03;
  box-shadow:inset 0 0 0 1px rgba(255,122,47,.4),0 0 28px rgba(255,122,47,.3);
}
.btn.primary:hover{
  transform:translateY(-1px);
  filter:brightness(1.06);
  box-shadow:inset 0 0 0 1px rgba(255,122,47,.5),0 0 40px rgba(255,122,47,.42);
  color:#1A0E03;
}
.btn.primary:active{
  transform:translateY(1px);
  box-shadow:inset 0 0 0 1px rgba(255,122,47,.4),0 0 16px rgba(255,122,47,.26);
}
.btn.ghost{
  background:rgba(20,36,54,.4);
  border-color:var(--c-line-strong);
  color:var(--c-tx-2);
}
.btn.ghost:hover{
  color:var(--c-tx-1);
  border-color:var(--c-brand);
  background:rgba(31,209,232,.1);
}
.btn-soft{
  background:rgba(31,209,232,.1);
  border:1px solid rgba(31,209,232,.3);
  color:var(--c-brand);
}
.btn-soft:hover{background:rgba(31,209,232,.18);color:var(--c-brand);border-color:var(--c-brand);}
.nav-toggle{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border-radius:var(--r-btn);
  background:rgba(16,28,42,.7);
  border:1px solid var(--c-line);
  color:var(--c-tx-1);
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--c-brand);color:var(--c-brand);}
@media(min-width:1200px){
  .nav-channels{display:flex;}
  .nav-search{display:flex;}
  .nav-toggle{display:none;}
}
@media(min-width:992px) and (max-width:1199px){
  .nav-channels{display:flex;}
  .nav-channels .nav-link{padding:8px;font-size:13.5px;}
  .nav-toggle{display:none;}
  .nav-search{display:flex;min-width:150px;}
  .nav-wrap{gap:10px;}
}
@media(max-width:991px){
  .brand-text{font-size:13.5px;white-space:normal;max-width:130px;line-height:1.2;}
  .nav-right .btn.ghost{display:none;}
}

/* ---------- mobile drawer ---------- */
.drawer{
  background:var(--c-bg-1) !important;
  color:var(--c-tx-1);
  border-right:1px solid var(--c-line-strong);
  width:min(88vw,360px);
}
.drawer .drawer-title{
  font-size:12px;
  letter-spacing:.12em;
  color:var(--c-tx-3);
  margin:20px 0 10px;
}
.drawer .drawer-search{
  display:flex;align-items:center;gap:8px;
  height:46px;padding:0 14px;
  background:var(--c-bg-2);
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
}
.drawer .drawer-search input{flex:1;background:transparent;border:0;outline:0;color:var(--c-tx-1);}
.drawer .drawer-search input::placeholder{color:var(--c-tx-3);}
.drawer .drawer-link{
  display:flex;align-items:center;gap:12px;
  min-height:48px;
  padding:0 14px;
  border-radius:var(--r-btn);
  color:var(--c-tx-2);
  font-size:15px;
}
.drawer .drawer-link i{width:18px;text-align:center;color:var(--c-tx-3);}
.drawer .drawer-link:hover{background:rgba(126,186,222,.08);color:var(--c-tx-1);}
.drawer .drawer-link.is-active{background:rgba(255,122,47,.12);color:var(--c-tx-1);border:1px solid rgba(255,122,47,.35);}
.drawer .drawer-link.is-active i{color:var(--c-accent);}
.drawer .btn{width:100%;}
.btn-close{filter:invert(1) grayscale(1) brightness(2);}

/* ---------- page shell ---------- */
.page-main{padding-top:var(--nav-h);}
.breadcrumb-bar{
  border-bottom:1px solid var(--c-line);
  background:linear-gradient(180deg,var(--c-bg-1),var(--c-bg-0));
}
.breadcrumb-list{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:16px 0;
  margin:0;list-style:none;
  font-size:13.5px;
  color:var(--c-tx-3);
}
.breadcrumb-list li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb-list a{color:var(--c-tx-2);}
.breadcrumb-list a:hover{color:var(--c-brand);}
.breadcrumb-list .sep{color:var(--c-tx-3);font-size:11px;}
.breadcrumb-list .current{
  color:var(--c-tx-3);
  max-width:52vw;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
@media(min-width:768px){.breadcrumb-list .current{max-width:520px;}}

/* ---------- article head ---------- */
.article-hero{
  position:relative;
  padding:clamp(32px,4.5vw,56px) 0 clamp(24px,3vw,36px);
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
}
.article-hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(126,186,222,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(126,186,222,.055) 1px,transparent 1px);
  background-size:56px 56px;
  pointer-events:none;
}
.article-hero .container{position:relative;z-index:1;}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  font-size:12px;
  letter-spacing:.02em;
  background:rgba(31,209,232,.1);
  border:1px solid rgba(31,209,232,.3);
  color:var(--c-brand);
}
.pill.accent{
  background:rgba(255,122,47,.12);
  border-color:rgba(255,122,47,.35);
  color:#FFB079;
}
.pill.muted{
  background:rgba(126,186,222,.08);
  border-color:var(--c-line);
  color:var(--c-tx-2);
}
.article-hero h1{
  margin:16px 0 18px;
  max-width:900px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;
  gap:8px 20px;
  font-size:13.5px;
  color:var(--c-tx-3);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{font-size:13px;color:var(--c-tx-3);}

/* ---------- layout ---------- */
.article-layout{
  padding:clamp(32px,4.5vw,60px) 0 var(--sp-section);
}
.layout-grid{
  display:block;
}
@media(min-width:1200px){
  .layout-grid{
    display:grid;
    grid-template-columns:minmax(0,1fr) 300px;
    gap:48px;
    align-items:start;
  }
}
.reader{
  max-width:820px;
  margin:0 auto;
  background:var(--c-bg-2);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:clamp(22px,3.2vw,44px);
  box-shadow:var(--sh-card);
}
.article-cover{
  margin:0 0 clamp(22px,3vw,32px);
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--c-line);
}
.article-cover img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
}
.article-body{
  font-size:17px;
  line-height:1.9;
  color:#D7E4F1;
}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;
  font-size:clamp(21px,2.4vw,27px);
  margin:2em 0 .8em;
  padding-left:14px;
}
.article-body h2::before{
  content:"";
  position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:2px;
  background:var(--c-accent);
}
.article-body h3{
  font-size:19px;
  margin:1.7em 0 .7em;
  color:var(--c-tx-1);
}
.article-body a{
  color:var(--c-brand-deep);
  text-decoration:underline;
  text-underline-offset:3px;
}
.article-body a:hover{color:var(--c-brand);}
.article-body img{
  border-radius:12px;
  margin:1.4em auto;
}
.article-body blockquote{
  margin:1.6em 0;
  padding:16px 20px;
  background:var(--c-glass);
  border-left:2px solid var(--c-brand);
  border-radius:0 var(--r-card) var(--r-card) 0;
  color:var(--c-tx-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul,.article-body ol{padding-left:1.3em;}
.article-body li{margin:.45em 0;}
.article-body ul li::marker{color:var(--c-accent);}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.6em 0;
  font-size:15px;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.article-body th,.article-body td{
  padding:12px 14px;
  border-bottom:1px solid var(--c-line);
  text-align:left;
}
.article-body th{color:var(--c-brand);background:rgba(11,19,30,.7);font-weight:600;}
.article-body tr:last-child td{border-bottom:0;}

/* ---------- empty state ---------- */
.empty-state{
  max-width:640px;
  margin:0 auto;
  text-align:center;
  padding:clamp(36px,5vw,60px) 24px;
  background:var(--c-bg-2);
  border:1px dashed var(--c-line-strong);
  border-radius:var(--r-lg);
}
.empty-state i{font-size:34px;color:var(--c-tx-3);margin-bottom:14px;}
.empty-state p{color:var(--c-tx-2);margin-bottom:20px;}

/* ---------- sidebar ---------- */
.side-col{display:none;}
@media(min-width:1200px){
  .side-col{display:block;position:sticky;top:calc(var(--nav-h) + 24px);}
  .side-col > * + *{margin-top:20px;}
}
.side-card{
  background:var(--c-bg-2);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:20px;
}
.side-title{
  display:flex;align-items:center;gap:9px;
  font-size:14px;
  font-weight:600;
  color:var(--c-tx-1);
  margin-bottom:14px;
}
.side-title i{color:var(--c-brand);font-size:14px;}
.toc-list,.hot-list{list-style:none;margin:0;padding:0;}
.toc-list li + li,.hot-list li + li{margin-top:10px;border-top:1px solid var(--c-line);padding-top:10px;}
.toc-list a{
  display:block;
  font-size:14px;
  color:var(--c-tx-2);
  line-height:1.6;
}
.toc-list a:hover{color:var(--c-brand);}
.hot-list a{
  display:block;
  font-size:14px;
  color:var(--c-tx-2);
  line-height:1.6;
  margin-bottom:5px;
}
.hot-list a:hover{color:var(--c-brand);}
.hot-list span{font-size:12px;color:var(--c-tx-3);}

/* ---------- article footer blocks ---------- */
.article-foot{
  max-width:820px;
  margin:40px auto 0;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;
  font-size:12.5px;
  border-radius:var(--r-pill);
  background:rgba(126,186,222,.08);
  border:1px solid var(--c-line);
  color:var(--c-tx-2);
}
.tag:hover{border-color:var(--c-brand);color:var(--c-brand);}
.react-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding:16px 18px;
  background:var(--c-bg-2);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  margin-bottom:34px;
}
.react-btn{
  display:inline-flex;align-items:center;gap:8px;
  min-height:44px;
  padding:0 16px;
  border-radius:var(--r-btn);
  background:rgba(16,28,42,.8);
  border:1px solid var(--c-line);
  color:var(--c-tx-2);
  font-size:14px;
  cursor:pointer;
  transition:border-color .2s ease,color .2s ease,background .2s ease,transform .2s ease;
}
.react-btn:hover{border-color:var(--c-brand);color:var(--c-brand);transform:translateY(-1px);}
.react-btn i{font-size:14px;}
.react-count{font-variant-numeric:tabular-nums;color:var(--c-tx-3);font-size:13px;margin-left:auto;}

/* ---------- related ---------- */
.section-head{margin-bottom:26px;}
.section-head h2{margin-bottom:8px;}
.section-head p{color:var(--c-tx-2);font-size:15px;margin:0;}
.related-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:20px;
}
@media(min-width:576px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:992px){.related-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.card-link{
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--c-bg-2);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.card-link:hover{
  border-color:var(--c-brand);
  transform:translateY(-2px);
  box-shadow:var(--sh-soft);
}
.card-thumb{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--c-bg-1);
}
.card-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.card-link:hover .card-thumb img{transform:scale(1.03);}
.card-body{padding:16px 18px 18px;display:flex;flex-direction:column;flex:1;}
.card-body h3{
  font-size:16.5px;
  line-height:1.5;
  margin:8px 0 8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  color:var(--c-tx-1);
}
.card-desc{
  font-size:14px;
  line-height:1.7;
  color:var(--c-tx-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin:0 0 14px;
}
.card-meta{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin-top:auto;
  font-size:12.5px;
  color:var(--c-tx-3);
  border-top:1px solid var(--c-line);
  padding-top:12px;
}
.card-meta i{color:var(--c-brand);}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;
  padding:clamp(48px,6vw,86px) 0;
  border-top:1px solid var(--c-line);
  background:
    radial-gradient(circle at 22% 40%,rgba(31,209,232,.12),transparent 58%),
    radial-gradient(circle at 82% 60%,rgba(255,122,47,.1),transparent 58%),
    var(--c-bg-1);
  text-align:center;
}
.cta-band h2{margin-bottom:12px;}
.cta-band p{color:var(--c-tx-2);max-width:620px;margin:0 auto 26px;}
.cta-band .btn-row{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;}

/* ---------- footer ---------- */
.site-footer{
  border-top:1px solid var(--c-line);
  background:var(--c-bg-1);
  padding:clamp(44px,5vw,72px) 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
  padding-bottom:36px;
}
@media(min-width:576px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:992px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  font-size:15px;font-weight:700;color:var(--c-tx-1);
  margin-bottom:14px;
}
.site-footer p{color:var(--c-tx-2);font-size:14px;line-height:1.8;margin:0;}
.footer-title{
  font-size:14px;font-weight:600;color:var(--c-tx-1);
  margin-bottom:14px;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:var(--c-tx-2);
}
.footer-links a i{font-size:11px;color:var(--c-tx-3);}
.footer-links a:hover{color:var(--c-brand);}
.footer-links a:hover i{color:var(--c-brand);}
.footer-contact{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px;}
.footer-contact li{display:flex;align-items:flex-start;gap:9px;font-size:14px;color:var(--c-tx-2);}
.footer-contact i{color:var(--c-tx-3);font-size:13px;margin-top:5px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  border-top:1px solid var(--c-line);
  padding:18px 0 22px;
  font-size:13px;
  color:var(--c-tx-3);
}

/* ---------- floating cta ---------- */
.float-cta{
  position:fixed;
  right:24px;
  bottom:26px;
  z-index:1040;
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 20px;
  border-radius:var(--r-pill);
  background:linear-gradient(135deg,var(--c-accent),#FF9A4F);
  color:#1A0E03;
  font-size:14px;font-weight:600;
  box-shadow:inset 0 0 0 1px rgba(255,122,47,.4),0 0 28px rgba(255,122,47,.3);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease,box-shadow .3s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{
  color:#1A0E03;
  box-shadow:inset 0 0 0 1px rgba(255,122,47,.5),0 0 40px rgba(255,122,47,.45);
}
@media(max-width:767px){
  .float-cta{
    right:0;left:0;bottom:0;
    justify-content:center;
    border-radius:0;
    padding:15px 20px;
    transform:translateY(100%);
  }
  .float-cta.is-visible{transform:translateY(0);}
  .page-main{padding-bottom:72px;}
  .site-footer{padding-bottom:74px;}
}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(12px);}
.reveal.is-in{opacity:1;transform:translateY(0);transition:opacity .42s ease-out,transform .42s ease-out;}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
  .reveal.is-in{transition:none;}
  *{animation:none !important;transition:none !important;}
}

/* roulang page: category1 */
:root{
  --c-bg-0:#060B12;
  --c-bg-1:#0B131E;
  --c-bg-2:#101C2A;
  --c-glass:rgba(20,36,54,.55);
  --c-line:rgba(126,186,222,.14);
  --c-line-strong:rgba(126,186,222,.28);
  --c-brand:#1FD1E8;
  --c-brand-deep:#2A6BFF;
  --c-accent:#FF7A2F;
  --c-ok:#34D399;
  --c-tx-1:#EAF2FA;
  --c-tx-2:#A6B7CB;
  --c-tx-3:#6C7E94;
  --r-sm:8px;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-card:0 12px 32px rgba(0,0,0,.35);
  --maxw:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:92px}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;color:var(--c-tx-1);
  background:var(--c-bg-0);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(31,209,232,.3);color:#fff}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 24px}}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:var(--c-glass);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:background .3s ease,border-color .3s ease;
}
.site-header.is-scrolled{background:rgba(8,17,27,.94);border-bottom-color:var(--c-line-strong)}
.nav-wrap{display:flex;align-items:center;gap:16px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;min-height:44px}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;flex-shrink:0;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-deep));
  box-shadow:0 0 0 1px rgba(31,209,232,.35),0 0 18px rgba(31,209,232,.25);
}
.brand-mark svg{width:22px;height:22px}
.brand-text{font-size:16px;font-weight:700;white-space:nowrap;color:var(--c-tx-1)}
.nav-channels{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:8px 12px;min-height:44px;border-radius:var(--r-btn);
  font-size:14px;color:var(--c-tx-2);white-space:nowrap;
}
.nav-link i{font-size:13px;opacity:.75}
.nav-link:hover{color:var(--c-tx-1);background:rgba(31,209,232,.08)}
.nav-link.is-active{color:var(--c-tx-1)}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;
  background:var(--c-accent);box-shadow:0 0 10px rgba(255,122,47,.6);
}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-search{
  position:relative;display:flex;align-items:center;gap:6px;
  height:40px;min-width:210px;padding:0 12px;
  background:rgba(16,28,42,.72);border:1px solid var(--c-line);border-radius:var(--r-btn);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.nav-search i{font-size:13px;color:var(--c-tx-3)}
.nav-search input{flex:1;min-width:0;background:transparent;border:0;outline:none;font-size:14px;padding:0}
.nav-search input::placeholder{color:var(--c-tx-3)}
.nav-search:focus-within{border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(31,209,232,.16)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 18px;border-radius:var(--r-btn);
  font-size:14px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn.primary{
  background:linear-gradient(180deg,#FF8E4B,#FF7A2F);color:#1A0C03;
  box-shadow:inset 0 0 0 1px rgba(255,122,47,.4),0 0 28px rgba(255,122,47,.3);
}
.btn.primary:hover{
  transform:translateY(-1px);filter:brightness(1.06);
  box-shadow:inset 0 0 0 1px rgba(255,122,47,.5),0 0 40px rgba(255,122,47,.42);
}
.btn.primary:active{transform:translateY(0);box-shadow:inset 0 0 0 1px rgba(255,122,47,.45),0 0 16px rgba(255,122,47,.3)}
.btn.ghost{background:rgba(16,28,42,.6);border-color:var(--c-line-strong);color:var(--c-tx-1)}
.btn.ghost:hover{border-color:var(--c-brand);background:rgba(31,209,232,.1);color:#fff}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--c-line-strong);background:rgba(16,28,42,.75);
  color:var(--c-tx-1);place-items:center;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--c-brand);color:#fff}

/* ---------- Drawer ---------- */
.drawer{background:var(--c-bg-1);color:var(--c-tx-1);border-left:1px solid var(--c-line);width:min(340px,88vw)}
.drawer .offcanvas-header{border-bottom:1px solid var(--c-line);padding:16px 20px}
.drawer .offcanvas-title{font-size:16px;font-weight:700}
.drawer-close{width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--c-line-strong);background:transparent;color:var(--c-tx-1);cursor:pointer}
.drawer-close:hover{border-color:var(--c-brand);color:#fff}
.drawer .offcanvas-body{padding:18px 20px 28px;display:flex;flex-direction:column;gap:20px}
.drawer-search{min-width:0;width:100%}
.drawer-title{font-size:12px;letter-spacing:.08em;color:var(--c-tx-3);margin-bottom:10px;text-transform:uppercase}
.drawer-group{display:flex;flex-direction:column;gap:4px}
.drawer-link{
  display:flex;align-items:center;gap:10px;min-height:46px;padding:0 12px;
  border-radius:var(--r-btn);font-size:15px;color:var(--c-tx-2);border:1px solid transparent;
}
.drawer-link i{font-size:14px;opacity:.8}
.drawer-link:hover{background:rgba(31,209,232,.08);color:var(--c-tx-1)}
.drawer-link.is-active{color:var(--c-tx-1);border-color:rgba(255,122,47,.35);background:rgba(255,122,47,.08)}
.drawer-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:4px}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  padding:118px 0 clamp(48px,6vw,76px);
  background:linear-gradient(180deg,rgba(6,11,18,.72),rgba(6,11,18,.92) 60%,var(--c-bg-0)),
             url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  border-bottom:1px solid var(--c-line);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:linear-gradient(rgba(126,186,222,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(126,186,222,.05) 1px,transparent 1px);
  background-size:72px 72px;
}
.hero-inner{position:relative;z-index:1}
.breadcrumb-bar{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-tx-3);margin-bottom:24px;flex-wrap:wrap}
.breadcrumb-bar a{color:var(--c-tx-3)}
.breadcrumb-bar a:hover{color:var(--c-brand)}
.breadcrumb-bar i{font-size:10px;opacity:.7}
.breadcrumb-bar span{color:var(--c-tx-2)}
.hero-grid{display:grid;grid-template-columns:1fr;gap:34px;align-items:center}
@media (min-width:992px){.hero-grid{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr)}}
.pill{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.02em;color:var(--c-brand);
  background:rgba(31,209,232,.1);border:1px solid rgba(31,209,232,.3);margin-bottom:18px;
}
.pill i{font-size:12px}
.cat-hero h1{font-size:clamp(30px,4.6vw,46px);font-weight:700;line-height:1.2;margin-bottom:16px}
.hero-sub{font-size:16px;color:var(--c-tx-2);max-width:620px;margin-bottom:20px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.tag{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.02em;color:var(--c-tx-2);
  background:rgba(16,28,42,.7);border:1px solid var(--c-line);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:10px}
.hero-visual{
  margin:0;border-radius:var(--r-lg);overflow:hidden;position:relative;
  border:1px solid var(--c-line-strong);background:var(--c-glass);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--sh-card);
}
.hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-visual figcaption{
  padding:12px 16px;font-size:13px;color:var(--c-tx-3);
  border-top:1px solid var(--c-line);background:rgba(11,19,30,.6);
}

/* ---------- Section base ---------- */
.section{padding:clamp(56px,7vw,112px) 0}
.section-alt{background:var(--c-bg-1);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.sec-head{max-width:720px;margin-bottom:clamp(28px,4vw,44px)}
.eyebrow{display:block;font-size:12px;letter-spacing:.14em;color:var(--c-brand);margin-bottom:12px}
.sec-head h2{font-size:clamp(24px,3.2vw,36px);font-weight:700;line-height:1.25;margin-bottom:12px}
.sec-head p{font-size:15px;color:var(--c-tx-2)}

/* ---------- Cards grid + sidebar ---------- */
.grid-main{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:1200px){.grid-main{grid-template-columns:minmax(0,1fr) 320px}}
.cards-2{display:grid;gap:22px;grid-template-columns:1fr}
@media (min-width:768px){.cards-2{grid-template-columns:repeat(2,minmax(0,1fr))}}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--c-bg-2);border:1px solid var(--c-line);border-radius:var(--r-card);
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.card:hover{border-color:rgba(31,209,232,.55);transform:translateY(-2px);box-shadow:var(--sh-card)}
.card-cover{display:block;position:relative;aspect-ratio:16/10;overflow:hidden;background:#0A1420}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card-cover img{transform:scale(1.03)}
.card-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}
.chip{
  align-self:flex-start;padding:4px 11px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.02em;color:var(--c-brand);
  background:rgba(31,209,232,.1);border:1px solid rgba(31,209,232,.26);
}
.card-title{font-size:19px;font-weight:600;line-height:1.45}
.card-title a{display:block}
.card-title a:hover{color:var(--c-brand)}
.card-desc{
  font-size:14px;line-height:1.75;color:var(--c-tx-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--c-tx-3);padding-top:12px;border-top:1px solid var(--c-line)}
.card-meta i{font-size:12px;margin-right:5px}
.card-link{display:inline-flex;align-items:center;gap:6px;color:var(--c-tx-2);font-weight:600}
.card-link i{font-size:12px;margin:0;transition:transform .2s ease}
.card:hover .card-link{color:var(--c-brand)}
.card:hover .card-link i{transform:translateX(3px)}

.side-col{display:flex;flex-direction:column;gap:20px}
@media (min-width:1200px){.side-col{position:sticky;top:92px;align-self:start}}
.side-card{background:var(--c-glass);border:1px solid var(--c-line);border-radius:var(--r-card);padding:20px;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}
.side-title{font-size:14px;font-weight:700;color:var(--c-tx-1);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--c-accent)}
.side-list li+li{border-top:1px solid var(--c-line)}
.side-list a{display:flex;align-items:center;gap:10px;min-height:48px;padding:8px 2px;font-size:14px;color:var(--c-tx-2)}
.side-list a:hover{color:var(--c-brand)}
.side-list .num{font-size:12px;color:var(--c-tx-3);font-variant-numeric:tabular-nums;flex-shrink:0;letter-spacing:.04em}
.side-list .txt{flex:1;line-height:1.6}
.side-list i{font-size:11px;color:var(--c-tx-3)}
.check-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--c-tx-2);padding:7px 0}
.check-list i{color:var(--c-ok);font-size:13px;margin-top:7px}

/* ---------- Scene grid ---------- */
.scene-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:768px){.scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:992px){
  .scene-grid{grid-template-columns:repeat(6,minmax(0,1fr))}
  .scene-item:nth-child(1){grid-column:span 6}
  .scene-item:nth-child(2),.scene-item:nth-child(3){grid-column:span 3}
  .scene-item:nth-child(4),.scene-item:nth-child(5){grid-column:span 3}
}
.scene-item{
  background:var(--c-bg-2);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;transition:border-color .22s ease,transform .22s ease;
}
.scene-item:hover{border-color:var(--c-line-strong);transform:translateY(-2px)}
.scene-item:first-child{
  background:linear-gradient(135deg,rgba(31,209,232,.1),rgba(16,28,42,.9) 55%),var(--c-bg-2);
  border-color:rgba(31,209,232,.28);
}
.scene-icon{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;margin-bottom:14px;
  background:rgba(31,209,232,.12);border:1px solid rgba(31,209,232,.28);color:var(--c-brand);
}
.scene-item h3{font-size:18px;font-weight:600;margin-bottom:8px}
.scene-item p{font-size:14px;color:var(--c-tx-2);line-height:1.78}

/* ---------- Steps ---------- */
.steps{display:grid;gap:18px;grid-template-columns:1fr;counter-reset:step}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:992px){.steps{grid-template-columns:repeat(4,minmax(0,1fr))}}
.step{
  position:relative;padding:26px 22px 24px;border-radius:var(--r-card);
  background:var(--c-bg-2);border:1px solid var(--c-line);
  transition:border-color .22s ease,transform .22s ease;
}
.step:hover{border-color:rgba(31,209,232,.45);transform:translateY(-2px)}
.step-num{
  font-size:30px;font-weight:700;line-height:1;letter-spacing:.02em;
  font-variant-numeric:tabular-nums;color:rgba(31,209,232,.4);margin-bottom:12px;display:block;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:8px}
.step p{font-size:14px;color:var(--c-tx-2);line-height:1.75}

/* ---------- Band ---------- */
.band{background:var(--c-bg-1);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);padding:clamp(30px,4vw,46px) 0}
.band-inner{display:grid;gap:22px;grid-template-columns:1fr}
@media (min-width:768px){.band-inner{grid-template-columns:repeat(3,minmax(0,1fr))}}
.band-item{display:flex;align-items:center;gap:14px}
.band-num{font-size:clamp(28px,3.6vw,40px);font-weight:700;line-height:1;color:var(--c-brand);font-variant-numeric:tabular-nums}
.band-label{font-size:14px;color:var(--c-tx-2);line-height:1.6}
.band-item+.band-item{border-top:1px solid var(--c-line);padding-top:22px}
@media (min-width:768px){
  .band-item+.band-item{border-top:0;padding-top:0;border-left:1px solid var(--c-line);padding-left:22px}
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px}
.accordion-item{
  background:var(--c-glass);border:1px solid var(--c-line);border-radius:var(--r-card) !important;
  margin-bottom:12px;overflow:hidden;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:border-color .22s ease;
}
.accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(31,209,232,.45)}
.accordion-button{
  background:transparent !important;color:var(--c-tx-1) !important;
  font-size:16px;font-weight:600;padding:18px 22px;box-shadow:none !important;
  display:flex;align-items:center;gap:14px;min-height:56px;
}
.accordion-button:not(.collapsed){color:var(--c-brand) !important}
.accordion-button::after{
  content:"+";background-image:none !important;
  width:auto;height:auto;flex:0 0 auto;margin-left:auto;
  font-size:22px;font-weight:400;line-height:1;color:var(--c-brand);
  transform:none;transition:color .2s ease;
}
.accordion-button:not(.collapsed)::after{content:"×";color:var(--c-accent)}
.accordion-button:focus{box-shadow:none !important;outline:2px solid var(--c-accent);outline-offset:-3px}
.accordion-body{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--c-tx-2)}

/* ---------- CTA band ---------- */
.cta-band{
  border-radius:var(--r-lg);padding:clamp(32px,5vw,58px) clamp(22px,4vw,48px);text-align:center;
  background:radial-gradient(620px 260px at 50% 0%,rgba(31,209,232,.16),transparent 72%),var(--c-bg-1);
  border:1px solid var(--c-line-strong);
}
.cta-band h2{font-size:clamp(22px,3vw,32px);margin-bottom:12px}
.cta-band p{color:var(--c-tx-2);font-size:15px;max-width:620px;margin:0 auto 24px}
.cta-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}

/* ---------- Floating CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:1040;
  display:inline-flex;align-items:center;gap:9px;min-height:48px;padding:0 20px;
  border-radius:var(--r-pill);font-size:14px;font-weight:700;color:#1A0C03;
  background:linear-gradient(180deg,#FF8E4B,#FF7A2F);
  box-shadow:inset 0 0 0 1px rgba(255,122,47,.4),0 0 28px rgba(255,122,47,.34);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease,box-shadow .25s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:none}
.float-cta:hover{box-shadow:inset 0 0 0 1px rgba(255,122,47,.5),0 0 42px rgba(255,122,47,.5)}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--c-line);background:var(--c-bg-1);padding:clamp(44px,6vw,72px) 0 0;margin-top:clamp(40px,6vw,80px)}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.4fr .8fr .9fr 1fr}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;font-size:16px;font-weight:700}
.site-footer p{font-size:14px;color:var(--c-tx-2);max-width:340px}
.footer-title{font-size:14px;font-weight:700;margin-bottom:14px;color:var(--c-tx-1)}
.footer-links{display:flex;flex-direction:column;gap:2px}
.footer-links a{display:inline-flex;align-items:center;gap:8px;min-height:40px;font-size:14px;color:var(--c-tx-2)}
.footer-links a i{font-size:11px;color:var(--c-tx-3)}
.footer-links a:hover{color:var(--c-brand)}
.footer-links a:hover i{color:var(--c-brand)}
.footer-contact{display:flex;flex-direction:column;gap:10px}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--c-tx-2)}
.footer-contact i{margin-top:7px;font-size:13px;color:var(--c-tx-3)}
.footer-bottom{
  margin-top:clamp(32px,4vw,48px);border-top:1px solid var(--c-line);
  padding:18px 0 24px;display:flex;flex-wrap:wrap;gap:8px;
  justify-content:space-between;font-size:13px;color:var(--c-tx-3);
}

/* ---------- Motion ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s ease-out,transform .42s ease-out}
.reveal.is-in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:1199.98px){
  .nav-channels,.nav-right .nav-search,.nav-right .btn.ghost,.nav-right .btn.primary{display:none}
  .nav-toggle{display:inline-grid}
}
@media (max-width:991.98px){
  .hero-grid{gap:28px}
}
@media (max-width:767.98px){
  body{padding-bottom:72px}
  .float-cta{left:0;right:0;bottom:0;border-radius:0;justify-content:center;min-height:60px;padding:0 16px}
  .cat-hero{padding-top:104px}
  .card-desc{-webkit-line-clamp:2}
  .hero-actions .btn{flex:1 1 auto}
}
@media (max-width:575.98px){
  .brand-text{font-size:14px}
  .brand-mark{width:30px;height:30px}
  .brand-mark svg{width:19px;height:19px}
  .cat-hero h1{font-size:clamp(26px,7.2vw,34px)}
  .card-title{font-size:17px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --c-bg-0:#060B12;
  --c-bg-1:#0B131E;
  --c-bg-2:#101C2A;
  --c-glass:rgba(20,36,54,0.55);
  --c-line:rgba(126,186,222,0.14);
  --c-line-strong:rgba(126,186,222,0.28);
  --c-brand:#1FD1E8;
  --c-brand-deep:#2A6BFF;
  --c-accent:#FF7A2F;
  --c-ok:#34D399;
  --c-tx-1:#EAF2FA;
  --c-tx-2:#A6B7CB;
  --c-tx-3:#6C7E94;
  --r-sm:8px;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:20px;
  --r-pill:999px;
  --shadow:0 12px 32px rgba(0,0,0,.35);
  --container:1200px;
  --nav-h:68px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 18px);-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg-0);
  color:var(--c-tx-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-brand);text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:var(--c-tx-1);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-tx-1);font-weight:700;letter-spacing:-.01em;}
h1{font-size:clamp(30px,4.6vw,52px);line-height:1.2;}
h2{font-size:clamp(24px,3.2vw,36px);line-height:1.25;}
h3{font-size:clamp(19px,2vw,23px);line-height:1.4;font-weight:600;}
p{margin:0 0 1em;color:var(--c-tx-2);}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(31,209,232,.28);color:#fff;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media (min-width:992px){.container{padding:0 24px;}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  height:var(--nav-h);
  background:var(--c-glass);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
  transition:background .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.site-header::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(234,242,250,.35),transparent);
  pointer-events:none;
}
.site-header.is-solid{
  background:rgba(8,16,26,.92);
  border-bottom-color:var(--c-line-strong);
  box-shadow:0 10px 30px rgba(0,0,0,.42);
}
.nav-wrap{display:flex;align-items:center;gap:16px;height:var(--nav-h);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;min-height:44px;color:var(--c-tx-1);}
.brand:hover{color:var(--c-tx-1);}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--c-brand),#6fe9f6 55%,var(--c-brand-deep));
  box-shadow:0 0 0 1px rgba(31,209,232,.35),0 0 18px rgba(31,209,232,.22);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-size:16px;font-weight:700;white-space:nowrap;letter-spacing:.01em;}
@media (max-width:1199px){.brand-text{font-size:14.5px;}}
@media (max-width:575px){.brand-text{font-size:13px;white-space:normal;line-height:1.25;max-width:120px;}}

.nav-channels{display:none;align-items:center;gap:4px;flex:1 1 auto;justify-content:center;}
@media (min-width:1200px){.nav-channels{display:flex;}}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:7px;
  min-height:44px;padding:0 12px;border-radius:var(--r-btn);
  color:var(--c-tx-2);font-size:14.5px;white-space:nowrap;
  transition:color .22s ease,background .22s ease;
}
.nav-link i{font-size:13px;color:var(--c-tx-3);transition:color .22s ease;}
.nav-link:hover{color:var(--c-tx-1);background:rgba(31,209,232,.07);}
.nav-link:hover i{color:var(--c-brand);}
.nav-link.is-active{color:var(--c-tx-1);}
.nav-link.is-active i{color:var(--c-accent);}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:6px;height:2px;
  border-radius:2px;background:var(--c-accent);
  box-shadow:0 0 12px rgba(255,122,47,.6);
}

.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-search{
  display:none;align-items:center;gap:8px;
  height:40px;padding:0 12px;border-radius:var(--r-btn);
  background:rgba(16,28,42,.72);
  border:1px solid var(--c-line);
  transition:border-color .22s ease,box-shadow .22s ease;
}
@media (min-width:992px){.nav-search{display:flex;width:210px;}}
@media (min-width:1200px){.nav-search{width:238px;}}
.nav-search i{color:var(--c-tx-3);font-size:13px;}
.nav-search input{
  width:100%;background:transparent;border:0;outline:none;
  color:var(--c-tx-1);font-size:13.5px;font-family:inherit;
}
.nav-search input::placeholder{color:var(--c-tx-3);}
.nav-search:focus-within{border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(31,209,232,.14);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 18px;border-radius:var(--r-btn);
  font-size:14.5px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;text-align:center;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .22s ease,filter .25s ease;
}
.btn.ghost{
  color:var(--c-tx-2);background:transparent;border-color:var(--c-line-strong);
}
.btn.ghost:hover{color:var(--c-tx-1);border-color:var(--c-brand);background:rgba(31,209,232,.08);}
.btn.primary{
  color:#1A0C02;
  background:linear-gradient(135deg,#FF9A55,var(--c-accent));
  box-shadow:inset 0 0 0 1px rgba(255,122,47,.4),0 0 28px rgba(255,122,47,.3);
}
.btn.primary:hover{
  color:#1A0C02;transform:translateY(-1px);filter:brightness(1.06);
  box-shadow:inset 0 0 0 1px rgba(255,122,47,.5),0 0 40px rgba(255,122,47,.42);
}
.btn.primary:active{transform:translateY(1px);box-shadow:inset 0 0 0 1px rgba(255,122,47,.5),0 0 18px rgba(255,122,47,.3);}
.nav-right .btn.ghost{display:none;}
@media (min-width:992px){.nav-right .btn.ghost{display:inline-flex;}}
.nav-right > .btn.primary{display:none;}
@media (min-width:768px){.nav-right > .btn.primary{display:inline-flex;}}
.nav-toggle{
  width:44px;height:44px;display:grid;place-items:center;
  border-radius:var(--r-btn);border:1px solid var(--c-line-strong);
  background:rgba(16,28,42,.7);color:var(--c-tx-1);font-size:16px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--c-brand);color:var(--c-brand);}
@media (min-width:1200px){.nav-toggle{display:none;}}

/* offcanvas drawer */
.offcanvas.drawer{background:var(--c-bg-1);color:var(--c-tx-1);border-right:1px solid var(--c-line);width:min(88vw,340px);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--c-line);}
.drawer-head .brand-text{font-size:15px;}
.drawer-body{padding:18px 20px 28px;display:flex;flex-direction:column;gap:18px;}
.drawer-search{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 14px;
  border-radius:var(--r-btn);background:var(--c-bg-2);border:1px solid var(--c-line);
}
.drawer-search i{color:var(--c-tx-3);}
.drawer-search input{flex:1;background:transparent;border:0;outline:none;color:var(--c-tx-1);font-size:14px;font-family:inherit;}
.drawer-group-title{font-size:12px;letter-spacing:.06em;color:var(--c-tx-3);margin-bottom:8px;}
.drawer-links{display:flex;flex-direction:column;gap:6px;}
.drawer-links a{
  display:flex;align-items:center;gap:10px;min-height:44px;padding:0 12px;
  border-radius:var(--r-btn);color:var(--c-tx-2);font-size:15px;
}
.drawer-links a i{color:var(--c-tx-3);font-size:13px;}
.drawer-links a:hover,.drawer-links a.is-active{background:rgba(31,209,232,.09);color:var(--c-tx-1);}
.drawer-links a.is-active i{color:var(--c-accent);}
.drawer-cta{display:flex;flex-direction:column;gap:10px;}
.drawer-cta .btn{width:100%;}

/* ---------- breadcrumb ---------- */
.crumb-bar{
  padding:calc(var(--nav-h) + 20px) 0 0;
  background:linear-gradient(180deg,rgba(11,19,30,.9),rgba(6,11,18,1));
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--c-tx-3);}
.crumb a{color:var(--c-tx-2);}
.crumb a:hover{color:var(--c-brand);}
.crumb i{font-size:10px;color:var(--c-tx-3);}
.crumb .cur{color:var(--c-tx-1);}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  margin-top:20px;
  padding:clamp(38px,5vw,64px) 0;
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
  background:
    linear-gradient(90deg,rgba(6,11,18,.94) 0%,rgba(6,11,18,.78) 46%,rgba(6,11,18,.55) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  background-color:var(--c-bg-1);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(126,186,222,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(126,186,222,.06) 1px,transparent 1px);
  background-size:46px 46px;opacity:.5;
}
.page-hero .container{position:relative;z-index:2;}
.hero-pills{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.02em;
  background:rgba(31,209,232,.12);color:var(--c-brand);
  border:1px solid rgba(31,209,232,.28);
}
.pill.orange{background:rgba(255,122,47,.14);color:#FFB180;border-color:rgba(255,122,47,.32);}
.pill.muted{background:rgba(126,186,222,.08);color:var(--c-tx-2);border-color:var(--c-line);}
.page-hero h1{max-width:16em;margin-bottom:14px;}
.page-hero .lead{max-width:46em;font-size:16.5px;color:var(--c-tx-2);margin-bottom:22px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.stat{
  min-width:140px;padding:14px 16px;border-radius:var(--r-card);
  background:rgba(16,28,42,.72);border:1px solid var(--c-line);
}
.stat b{display:block;font-size:24px;font-weight:700;color:var(--c-tx-1);font-variant-numeric:tabular-nums;line-height:1.2;}
.stat span{font-size:12.5px;color:var(--c-tx-3);}

/* ---------- sections ---------- */
.section{padding:clamp(56px,7vw,112px) 0;}
.section.alt{background:var(--c-bg-1);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.sec-head{max-width:760px;margin-bottom:clamp(26px,3.4vw,44px);}
.sec-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;
  color:var(--c-brand);text-transform:uppercase;margin-bottom:12px;
}
.sec-head .eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--c-accent);}
.sec-head p{margin-top:12px;font-size:15.5px;}

/* ---------- content wall ---------- */
.wall{display:grid;grid-template-columns:1fr;gap:20px;align-items:start;}
@media (min-width:576px){.wall{grid-template-columns:repeat(2,1fr);}}
@media (min-width:992px){.wall{grid-template-columns:repeat(3,1fr);gap:22px;}}
.wall-card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-card);background:var(--c-bg-2);
  border:1px solid var(--c-line);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.wall-card:hover{transform:translateY(-2px);border-color:var(--c-brand);box-shadow:var(--shadow);}
.wall-cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:#0a1420;}
.wall-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.wall-card:hover .wall-cover img{transform:scale(1.03);}
.wall-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,18,0) 45%,rgba(6,11,18,.72) 100%);
}
.wall-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.wall-body h3{font-size:19px;line-height:1.45;}
.wall-body .desc{
  color:var(--c-tx-2);font-size:14.5px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.wall-meta{
  margin-top:auto;display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  font-size:12.5px;color:var(--c-tx-3);padding-top:12px;border-top:1px solid var(--c-line);
}
.wall-meta .go{margin-left:auto;display:inline-flex;align-items:center;gap:6px;color:var(--c-brand);font-weight:600;}
.wall-meta .go:hover{color:var(--c-tx-1);}
.wall-card.span-2{grid-column:span 1;}
@media (min-width:992px){
  .wall-card.span-2{grid-column:span 2;}
  .wall-card.span-2 .wall-cover{aspect-ratio:21/9;}
  .wall-card.span-2 .wall-body h3{font-size:23px;}
}
@media (min-width:576px) and (max-width:991px){
  .wall-card.span-2{grid-column:span 2;}
}
.wall-card.tall .wall-cover{aspect-ratio:4/3;}
@media (min-width:992px){
  .wall-card.tall .wall-cover{aspect-ratio:3/4;}
}
.wall-note{
  margin-top:22px;padding:14px 18px;border-radius:var(--r-card);
  background:rgba(31,209,232,.07);border:1px solid rgba(31,209,232,.2);
  color:var(--c-tx-2);font-size:14px;
}
.wall-note i{color:var(--c-brand);margin-right:8px;}

/* ---------- setup list ---------- */
.split{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:992px){.split{grid-template-columns:1.05fr .95fr;gap:48px;align-items:start;}}
.check-list{display:flex;flex-direction:column;gap:14px;}
.check-list li{
  display:flex;gap:14px;padding:16px 18px;border-radius:var(--r-card);
  background:var(--c-bg-2);border:1px solid var(--c-line);
  transition:border-color .25s ease,transform .25s ease;
}
.check-list li:hover{border-color:var(--c-line-strong);transform:translateX(3px);}
.check-list .ico{
  flex:0 0 40px;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:rgba(31,209,232,.12);color:var(--c-brand);font-size:16px;
}
.check-list b{display:block;font-size:15.5px;color:var(--c-tx-1);font-weight:600;margin-bottom:2px;}
.check-list span{font-size:14px;color:var(--c-tx-2);line-height:1.7;}
.side-visual{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);
  background:var(--c-bg-2);box-shadow:var(--shadow);
}
.side-visual img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.side-visual .cap{padding:14px 18px;font-size:13.5px;color:var(--c-tx-3);}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:18px;counter-reset:step;}
@media (min-width:768px){.steps{grid-template-columns:repeat(3,1fr);}}
.step{
  position:relative;padding:24px 20px 22px;border-radius:var(--r-card);
  background:var(--c-bg-2);border:1px solid var(--c-line);
  transition:border-color .25s ease,transform .25s ease;
}
.step:hover{border-color:var(--c-brand);transform:translateY(-3px);}
.step .num{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--c-accent);font-variant-numeric:tabular-nums;margin-bottom:10px;
}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{font-size:14.5px;margin:0;}

/* ---------- faq ---------- */
.acc-item{
  margin-bottom:14px;border-radius:var(--r-card);
  background:var(--c-glass);border:1px solid var(--c-line);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  overflow:hidden;transition:border-color .25s ease;
}
.acc-item:hover{border-color:var(--c-line-strong);}
.acc-btn{
  position:relative;width:100%;text-align:left;cursor:pointer;
  padding:18px 60px 18px 20px;background:transparent;border:0;
  color:var(--c-tx-1);font-size:16px;font-weight:600;line-height:1.6;
  min-height:44px;transition:color .2s ease;
}
.acc-btn::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;font-size:16px;font-weight:600;
  color:var(--c-tx-2);background:rgba(126,186,222,.1);
  transition:color .22s ease,background .22s ease,transform .22s ease;
}
.acc-btn:not(.collapsed){color:var(--c-brand);}
.acc-btn:not(.collapsed)::after{
  content:"×";color:var(--c-accent);background:rgba(255,122,47,.14);transform:translateY(-50%) rotate(180deg);
}
.acc-body{padding:0 20px 20px;font-size:15px;color:var(--c-tx-2);line-height:1.85;}
.acc-body p:last-child{margin-bottom:0;}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;text-align:center;
  padding:clamp(48px,6vw,84px) 0;
  border-top:1px solid var(--c-line);
  background:radial-gradient(660px 300px at 50% 0%,rgba(31,209,232,.14),transparent 70%),var(--c-bg-0);
}
.cta-band h2{margin-bottom:14px;}
.cta-band p{max-width:44em;margin:0 auto 26px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;}

/* ---------- pagination ---------- */
.pager{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:34px;}
.pager a,.pager span{
  min-width:44px;min-height:44px;padding:0 15px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;color:var(--c-tx-2);
  background:rgba(16,28,42,.7);border:1px solid var(--c-line);
}
.pager a:hover{color:var(--c-tx-1);border-color:var(--c-brand);}
.pager .cur{background:linear-gradient(135deg,#FF9A55,var(--c-accent));color:#1A0C02;border-color:transparent;font-weight:700;}
.pager .off{opacity:.42;pointer-events:none;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--c-bg-1);border-top:1px solid var(--c-line);
  padding:clamp(44px,5vw,72px) 0 0;
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:38px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;font-size:16px;font-weight:700;color:var(--c-tx-1);}
.footer-grid p{font-size:14px;color:var(--c-tx-3);line-height:1.8;}
.footer-title{font-size:15px;font-weight:600;color:var(--c-tx-1);margin-bottom:14px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--c-tx-2);min-height:32px;}
.footer-links a i{font-size:11px;color:var(--c-tx-3);}
.footer-links a:hover{color:var(--c-brand);}
.footer-links a:hover i{color:var(--c-accent);}
.footer-contact{display:flex;flex-direction:column;gap:12px;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--c-tx-2);}
.footer-contact i{color:var(--c-brand);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:38px;padding:18px 0 22px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--c-tx-3);
}

/* ---------- floating cta ---------- */
.float-cta{
  position:fixed;right:22px;bottom:24px;z-index:1040;
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 20px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:600;color:#1A0C02;
  background:linear-gradient(135deg,#FF9A55,var(--c-accent));
  border:1px solid rgba(255,122,47,.5);
  box-shadow:inset 0 0 0 1px rgba(255,122,47,.4),0 0 26px rgba(255,122,47,.32);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease,box-shadow .3s ease;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{color:#1A0C02;box-shadow:inset 0 0 0 1px rgba(255,122,47,.5),0 0 40px rgba(255,122,47,.45);}
@media (max-width:767px){
  .float-cta{
    right:0;left:0;bottom:0;border-radius:0;
    justify-content:center;padding:14px 18px;
    transform:translateY(100%);
  }
  .float-cta.show{transform:translateY(0);}
  body{padding-bottom:72px;}
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s ease-out,transform .42s ease-out;}
.reveal.in{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --c-bg-0:#060B12;
  --c-bg-1:#0B131E;
  --c-bg-2:#101C2A;
  --c-glass:rgba(20,36,54,.55);
  --c-line:rgba(126,186,222,.14);
  --c-line-strong:rgba(126,186,222,.28);
  --c-brand:#1FD1E8;
  --c-brand-deep:#2A6BFF;
  --c-accent:#FF7A2F;
  --c-ok:#34D399;
  --c-tx-1:#EAF2FA;
  --c-tx-2:#A6B7CB;
  --c-tx-3:#6C7E94;
  --r-sm:8px;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-soft:0 12px 32px rgba(0,0,0,.35);
  --sp-block:clamp(56px,7vw,112px);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg-0);
  color:var(--c-tx-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-brand);text-decoration:none;transition:color .2s ease}
a:hover{color:#7BE9F7}
button,input{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--c-tx-1);font-weight:700;line-height:1.25}
h1{font-size:clamp(30px,4.6vw,52px);line-height:1.2}
h2{font-size:clamp(24px,3.2vw,36px)}
h3{font-size:20px;font-weight:600}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:768px){
  .container{padding-left:24px;padding-right:24px}
}

section{position:relative}
.section{padding-top:var(--sp-block);padding-bottom:var(--sp-block)}
.section-line{border-top:1px solid var(--c-line)}
.section-head{max-width:760px;margin-bottom:clamp(28px,4vw,48px)}
.section-head p{color:var(--c-tx-2);margin:14px 0 0;font-size:15.5px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.02em;font-weight:600;
  color:var(--c-brand);
  background:rgba(31,209,232,.08);
  border:1px solid rgba(31,209,232,.24);
  border-radius:var(--r-pill);
  padding:5px 14px;
  margin-bottom:16px;
}

/* ===== 顶部导航 ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:68px;
  background:var(--c-glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(126,186,222,.35),transparent);
}
.site-header.is-scrolled{background:rgba(8,16,26,.92);box-shadow:0 12px 32px rgba(0,0,0,.35)}
.nav-wrap{
  height:68px;display:flex;align-items:center;gap:18px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-tx-1)}
.brand-text{
  font-size:16px;font-weight:700;letter-spacing:.01em;white-space:nowrap;
}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 34px;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-deep));
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 18px rgba(31,209,232,.28);
}
.brand-mark svg{width:22px;height:22px}
.nav-channels{
  display:none;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto;min-width:0;
}
.nav-link{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 12px;border-radius:var(--r-btn);
  color:var(--c-tx-2);font-size:14.5px;font-weight:500;
  position:relative;white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link i{font-size:13px;opacity:.85}
.nav-link:hover{color:var(--c-tx-1);background:rgba(126,186,222,.08)}
.nav-link.is-active{color:var(--c-tx-1);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:var(--c-accent);
  box-shadow:0 0 12px rgba(255,122,47,.6);
}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-search{
  display:none;align-items:center;gap:8px;
  background:rgba(126,186,222,.07);
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  padding:0 12px;height:40px;width:210px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search i{color:var(--c-tx-3);font-size:13px}
.nav-search input{
  flex:1;min-width:0;background:transparent;border:0;outline:0;
  color:var(--c-tx-1);font-size:14px;
}
.nav-search input::placeholder{color:var(--c-tx-3)}
.nav-search:focus-within{border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(31,209,232,.14)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:14.5px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;text-decoration:none;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn.ghost{
  color:var(--c-tx-2);
  background:transparent;
  border:1px solid var(--c-line-strong);
}
.btn.ghost:hover{color:var(--c-tx-1);border-color:var(--c-brand);background:rgba(31,209,232,.06)}
.btn.primary{
  color:#0A1118;
  background:linear-gradient(135deg,#FF9350,var(--c-accent));
  box-shadow:inset 0 0 0 1px rgba(255,122,47,.4),0 0 28px rgba(255,122,47,.3);
}
.btn.primary:hover{
  transform:translateY(-1px);filter:brightness(1.06);
  box-shadow:inset 0 0 0 1px rgba(255,122,47,.5),0 0 40px rgba(255,122,47,.45);
  color:#0A1118;
}
.btn.primary:active{transform:translateY(1px);box-shadow:inset 0 0 0 1px rgba(255,122,47,.5),0 0 18px rgba(255,122,47,.35)}
.btn:focus-visible,.nav-link:focus-visible,a:focus-visible{
  outline:2px solid var(--c-accent);outline-offset:2px;
}
.btn.small{min-height:38px;padding:0 16px;font-size:13.5px}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r-btn);
  background:rgba(126,186,222,.08);border:1px solid var(--c-line);
  color:var(--c-tx-1);font-size:17px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--c-brand);color:var(--c-brand)}

@media (min-width:992px){.nav-channels{display:flex}}
@media (min-width:1200px){.nav-search{display:flex}}
@media (max-width:1199px){.nav-toggle{display:inline-flex}}
@media (min-width:1200px){.nav-toggle{display:none}}

/* 移动端抽屉 */
.offcanvas.dark-drawer{
  background:var(--c-bg-1);color:var(--c-tx-1);
  border-right:1px solid var(--c-line);width:min(340px,88vw);
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--c-line)}
.drawer-title{font-size:15px;font-weight:700}
.drawer-close{background:transparent;border:1px solid var(--c-line);color:var(--c-tx-2);width:36px;height:36px;border-radius:10px;cursor:pointer}
.drawer-body{padding:18px 20px 28px}
.drawer-search{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 14px;
  background:var(--c-bg-2);border:1px solid var(--c-line);border-radius:var(--r-btn);
  margin-bottom:20px;
}
.drawer-search input{flex:1;background:transparent;border:0;outline:0;color:var(--c-tx-1);font-size:14.5px}
.drawer-search i{color:var(--c-tx-3)}
.drawer-group-title{font-size:12px;color:var(--c-tx-3);letter-spacing:.06em;margin:6px 0 10px}
.drawer-nav a{
  display:flex;align-items:center;gap:10px;min-height:44px;
  padding:0 12px;border-radius:var(--r-btn);color:var(--c-tx-2);font-size:15px;
  border:1px solid transparent;
}
.drawer-nav a i{font-size:13px;color:var(--c-tx-3)}
.drawer-nav a:hover{background:rgba(126,186,222,.07);color:var(--c-tx-1)}
.drawer-nav a.is-active{color:var(--c-tx-1);background:rgba(31,209,232,.09);border-color:rgba(31,209,232,.28)}
.drawer-nav a.is-active i{color:var(--c-brand)}
.drawer-cta{display:flex;gap:10px;margin-top:22px}
.drawer-cta .btn{flex:1}
.btn:focus-visible,.nav-link:focus-visible,.nav-toggle:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}

/* ===== 面包屑 ===== */
.crumb-bar{
  padding-top:96px;
  padding-bottom:8px;
}
.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13.5px;color:var(--c-tx-3);
}
.crumb a{color:var(--c-tx-2)}
.crumb a:hover{color:var(--c-brand)}
.crumb i{font-size:10px;color:var(--c-tx-3)}
.crumb .now{color:var(--c-brand);font-weight:600}

/* ===== 分类 Hero ===== */
.cat-hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--c-line);
  background:
    linear-gradient(120deg,rgba(6,11,18,.94) 12%,rgba(6,11,18,.72) 52%,rgba(6,11,18,.9) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(126,186,222,.07) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(126,186,222,.07) 1px,transparent 1px);
  background-size:56px 56px;
  opacity:.5;
}
.cat-hero-inner{position:relative;z-index:2;padding:clamp(38px,5vw,66px) 0 clamp(42px,5.4vw,72px);max-width:820px}
.cat-hero h1{margin-bottom:16px}
.cat-hero h1 .hl{
  background:linear-gradient(100deg,var(--c-brand),var(--c-brand-deep));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.cat-hero p.lead{
  color:var(--c-tx-2);font-size:16.5px;max-width:680px;margin-bottom:22px;
}
.pill-row{display:flex;flex-wrap:wrap;gap:10px}
.pill{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;letter-spacing:.02em;font-weight:600;
  padding:6px 14px;border-radius:var(--r-pill);
  color:var(--c-tx-2);background:rgba(126,186,222,.07);
  border:1px solid var(--c-line);
}
.pill i{font-size:11px;color:var(--c-brand)}
.pill.accent{color:#FFD3B8;border-color:rgba(255,122,47,.35);background:rgba(255,122,47,.1)}
.pill.accent i{color:var(--c-accent)}

/* ===== 提示条 + 指标 ===== */
.notice{
  display:flex;gap:14px;align-items:flex-start;
  padding:18px 22px;border-radius:var(--r-lg);
  background:linear-gradient(90deg,rgba(31,209,232,.1),rgba(31,209,232,.02));
  border:1px solid rgba(31,209,232,.24);
  margin-top:clamp(28px,3.6vw,42px);
}
.notice i{color:var(--c-brand);font-size:17px;margin-top:4px}
.notice p{margin:0;color:var(--c-tx-2);font-size:14.8px}
.notice strong{color:var(--c-tx-1)}

.stat-strip{
  display:grid;grid-template-columns:repeat(2,1fr);gap:14px;
  margin-top:clamp(28px,3.6vw,42px);
}
.stat{
  background:var(--c-bg-2);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:20px;
}
.stat .num{
  font-size:clamp(24px,3vw,32px);font-weight:700;color:var(--c-brand);
  font-variant-numeric:tabular-nums;line-height:1.15;
}
.stat .num.accent{color:var(--c-accent)}
.stat .lbl{font-size:13.5px;color:var(--c-tx-3);margin-top:6px;line-height:1.6}

/* ===== 列表行式条目 ===== */
.list-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;
  margin-bottom:10px;
}
.list-head h2{margin:0}
.list-head .count{
  font-size:13px;color:var(--c-tx-3);
  font-variant-numeric:tabular-nums;
}
.list-wrap{border-top:1px solid var(--c-line)}
.list-row{
  display:flex;gap:22px;align-items:flex-start;
  padding:26px 6px;border-bottom:1px solid var(--c-line);
  transition:background .22s ease,padding .22s ease;
}
.list-row:hover{background:rgba(126,186,222,.035);padding-left:14px;padding-right:14px}
.list-thumb{
  flex:0 0 160px;width:160px;aspect-ratio:16/10;
  border-radius:12px;overflow:hidden;
  background:var(--c-bg-2);border:1px solid var(--c-line);
}
.list-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.list-row:hover .list-thumb img{transform:scale(1.05)}
.list-body{flex:1 1 auto;min-width:0}
.list-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px}
.tag{
  font-size:12px;letter-spacing:.02em;font-weight:600;
  padding:3px 11px;border-radius:var(--r-pill);
  color:var(--c-brand);background:rgba(31,209,232,.1);
  border:1px solid rgba(31,209,232,.24);
}
.tag.muted{color:var(--c-tx-2);background:rgba(126,186,222,.07);border-color:var(--c-line)}
.list-body h3{
  font-size:19px;margin:0 0 8px;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.list-body h3 a{color:var(--c-tx-1)}
.list-body h3 a:hover{color:var(--c-brand)}
.list-body p{
  margin:0 0 12px;color:var(--c-tx-2);font-size:14.8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.list-meta{
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-tx-3);
}
.list-meta span{display:inline-flex;align-items:center;gap:6px}
.list-meta i{font-size:12px;opacity:.8}
.list-arrow{
  flex:0 0 auto;align-self:center;
  width:40px;height:40px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-tx-3);border:1px solid var(--c-line);
  transition:all .22s ease;
}
.list-row:hover .list-arrow{color:var(--c-accent);border-color:rgba(255,122,47,.5);background:rgba(255,122,47,.1)}

/* 分页 */
.pager{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:38px;flex-wrap:wrap}
.pager a,.pager span{
  min-width:44px;height:44px;padding:0 14px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-pill);font-size:14px;font-weight:600;
  border:1px solid var(--c-line);color:var(--c-tx-2);
  background:rgba(126,186,222,.05);
}
.pager a:hover{border-color:var(--c-brand);color:var(--c-brand)}
.pager .current{
  background:linear-gradient(135deg,#FF9350,var(--c-accent));color:#0A1118;
  border-color:transparent;box-shadow:0 0 22px rgba(255,122,47,.32);
}
.pager .disabled{opacity:.4;cursor:not-allowed}

/* ===== 流程步骤 ===== */
.steps{display:grid;grid-template-columns:1fr;gap:18px}
.step{
  position:relative;
  background:var(--c-bg-2);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px 24px 24px;
  transition:border-color .25s ease,transform .25s ease;
}
.step:hover{border-color:var(--c-line-strong);transform:translateY(-2px)}
.step .idx{
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--c-accent);font-variant-numeric:tabular-nums;
  display:block;margin-bottom:12px;
}
.step h3{font-size:18px;margin-bottom:10px}
.step p{margin:0;color:var(--c-tx-2);font-size:14.8px}

/* ===== 关注要点（标签组 + 小卡） ===== */
.focus-grid{display:grid;grid-template-columns:1fr;gap:16px}
.focus-card{
  padding:22px;border-radius:var(--r-card);
  background:linear-gradient(160deg,rgba(16,28,42,1),rgba(11,19,30,1));
  border:1px solid var(--c-line);
}
.focus-card .fc-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.fc-icon{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(31,209,232,.1);border:1px solid rgba(31,209,232,.24);
  color:var(--c-brand);font-size:15px;
}
.focus-card h3{font-size:17px;margin:0}
.focus-card p{margin:0;color:var(--c-tx-2);font-size:14.6px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}

/* ===== FAQ ===== */
.faq-list{max-width:900px}
.acc-item{
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  background:var(--c-bg-2);
  margin-bottom:12px;overflow:hidden;
  transition:border-color .25s ease;
}
.acc-item:has(.acc-btn[aria-expanded="true"]){border-color:rgba(31,209,232,.4)}
.acc-btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:transparent;border:0;cursor:pointer;
  color:var(--c-tx-1);font-size:16px;font-weight:600;text-align:left;line-height:1.6;
}
.acc-btn:hover{color:var(--c-brand)}
.acc-icon{position:relative;width:18px;height:18px;flex:0 0 18px}
.acc-icon::before,.acc-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-brand);
  transform:translate(-50%,-50%);border-radius:2px;
}
.acc-icon::before{width:14px;height:2px}
.acc-icon::after{width:2px;height:14px;transition:transform .25s ease,opacity .25s ease}
.acc-btn[aria-expanded="true"] .acc-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.acc-body{padding:0 20px 20px;color:var(--c-tx-2);font-size:15px}
.acc-body p{margin:0}

/* ===== CTA 带 ===== */
.cta-band{
  position:relative;overflow:hidden;
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
  background:var(--c-bg-1);
}
.cta-band::before{
  content:"";position:absolute;left:50%;top:-120px;width:720px;height:360px;
  transform:translateX(-50%);
  background:radial-gradient(circle,rgba(31,209,232,.18),transparent 68%);
  pointer-events:none;
}
.cta-inner{
  position:relative;z-index:2;
  padding:clamp(46px,6vw,80px) 0;
  display:flex;flex-direction:column;align-items:flex-start;gap:22px;
}
.cta-inner h2{max-width:700px}
.cta-inner p{color:var(--c-tx-2);margin:0;max-width:640px;font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (min-width:992px){
  .cta-inner{flex-direction:row;align-items:center;justify-content:space-between}
  .cta-actions{flex-shrink:0}
}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--c-bg-1);
  border-top:1px solid var(--c-line);
  padding-top:clamp(44px,5.4vw,72px);
  margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:34px;
  padding-bottom:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;margin-bottom:14px}
.site-footer p{color:var(--c-tx-2);font-size:14.4px;margin:0;max-width:420px}
.footer-title{font-size:14px;font-weight:700;color:var(--c-tx-1);margin-bottom:16px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--c-tx-2);font-size:14.4px;
}
.footer-links a i{font-size:10px;color:var(--c-tx-3)}
.footer-links a:hover{color:var(--c-brand)}
.footer-links a:hover i{color:var(--c-brand)}
.footer-contact{display:flex;flex-direction:column;gap:12px}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;color:var(--c-tx-2);font-size:14.2px}
.footer-contact i{color:var(--c-brand);font-size:13px;margin-top:5px}
.footer-bottom{
  border-top:1px solid var(--c-line);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--c-tx-3);
}

/* ===== 浮动 CTA ===== */
.float-cta{
  position:fixed;right:22px;bottom:26px;z-index:900;
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 22px;border-radius:var(--r-pill);
  background:linear-gradient(135deg,#FF9350,var(--c-accent));
  color:#0A1118;font-weight:700;font-size:14.5px;
  box-shadow:inset 0 0 0 1px rgba(255,122,47,.4),0 0 28px rgba(255,122,47,.3);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .3s ease,transform .3s ease,box-shadow .25s ease,visibility .3s;
}
.float-cta.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{
  color:#0A1118;transform:translateY(-1px);filter:brightness(1.06);
  box-shadow:inset 0 0 0 1px rgba(255,122,47,.5),0 0 40px rgba(255,122,47,.45);
}
.float-cta i{font-size:13px}

@media (min-width:576px){
  .stat-strip{grid-template-columns:repeat(4,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .focus-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:992px){
  .steps{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}
}
@media (max-width:991px){
  .nav-search{display:none}
  .nav-right .btn.ghost{display:none}
}
@media (max-width:767px){
  .list-row{gap:14px;padding:22px 0}
  .list-thumb{flex:0 0 120px;width:120px}
  .list-body h3{font-size:17px}
  .list-arrow{display:none}
  .cat-hero h1{margin-bottom:12px}
}
@media (max-width:560px){
  .list-row{flex-direction:row}
  .list-thumb{flex:0 0 104px;width:104px;aspect-ratio:4/3}
  .list-body p{-webkit-line-clamp:3}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;
    justify-content:center;padding:15px 18px;
    transform:translateY(100%);
  }
  .float-cta.is-show{transform:translateY(0)}
  body{padding-bottom:72px}
  .footer-bottom{flex-direction:column;justify-content:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}