/* roulang page: index */
:root{
  --c-primary:#5B3DF5;
  --c-primary-deep:#4526D8;
  --c-accent:#2FD8BE;
  --c-gold:#FFC24B;
  --c-coral:#FF6B5A;
  --c-ink:#0E0B22;
  --c-panel:#171036;
  --c-bg:#F6F5FB;
  --c-white:#FFFFFF;
  --t-main:#12102A;
  --t-sub:#5A5878;
  --t-weak:#8C8AA5;
  --line:#E9E7F5;
  --soft:#F1EEFF;
  --grad:linear-gradient(135deg,#5B3DF5 0%,#2FD8BE 100%);
  --grad-soft:linear-gradient(135deg,rgba(91,61,245,.12) 0%,rgba(47,216,190,.12) 100%);
  --r-sm:10px;
  --r-md:18px;
  --r-lg:28px;
  --r-pill:999px;
  --sh-1:0 2px 10px rgba(20,14,50,.06);
  --sh-2:0 18px 44px -18px rgba(91,61,245,.35);
  --sh-3:0 24px 54px -20px rgba(47,216,190,.45);
  --sec-gap:96px;
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.78;
  color:var(--t-main);
  background:var(--c-bg);
  background-image:radial-gradient(rgba(91,61,245,.045) 1px,transparent 1px);
  background-size:22px 22px;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,transform .2s ease;}
a:hover{color:var(--c-primary-deep);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.32;letter-spacing:.2px;}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.container{max-width:1240px;padding-left:20px;padding-right:20px;margin:0 auto;width:100%;}
.section{padding:var(--sec-gap) 0;}
.section-tight{padding:64px 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap;}
.sec-head h2{font-size:30px;display:flex;align-items:center;gap:14px;}
.sec-head h2::before{content:"";width:34px;height:6px;border-radius:var(--r-pill);background:var(--grad);flex:none;}
.sec-head .sec-sub{font-size:14.5px;color:var(--t-sub);margin-top:6px;}
.text-link{font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.text-link::after{content:"›";font-size:17px;line-height:1;}
.text-link:hover{transform:translateX(3px);}
/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,padding .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 30px -18px rgba(20,14,50,.35);}
.head-wrap{display:flex;align-items:center;gap:20px;height:70px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:30px;height:30px;border-radius:9px;background:var(--grad);position:relative;flex:none;
  box-shadow:0 6px 16px -6px rgba(91,61,245,.7);
}
.brand-mark::before{
  content:"";position:absolute;inset:0;margin:auto;width:13px;height:13px;background:#fff;
  clip-path:polygon(50% 0%,61% 35%,98% 35%,68% 57%,79% 91%,50% 70%,21% 91%,32% 57%,2% 35%,39% 35%);
}
.brand-text{font-size:17.5px;font-weight:800;color:var(--t-main);letter-spacing:.4px;}
.brand:hover .brand-text{color:var(--c-primary);}
.main-nav{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center;}
.main-nav a{
  position:relative;font-size:15px;font-weight:600;color:var(--t-sub);
  padding:9px 13px;border-radius:var(--r-pill);transition:all .2s ease;
}
.main-nav a:hover{color:var(--c-primary);transform:translateY(-2px);background:var(--soft);}
.main-nav a.active{color:var(--c-primary);}
.main-nav a.active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:-3px;
  width:22px;height:3px;border-radius:var(--r-pill);background:var(--grad);
}
.head-actions{display:flex;align-items:center;gap:12px;flex:none;}
.search-pill{
  display:flex;align-items:center;background:#F3F1FC;border:1px solid var(--line);
  border-radius:var(--r-pill);padding:5px 6px 5px 15px;transition:border-color .2s ease,box-shadow .2s ease;
}
.search-pill:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(91,61,245,.14);}
.search-pill input{
  border:0;background:transparent;outline:none;font-size:14px;color:var(--t-main);width:126px;
}
.search-pill input::placeholder{color:var(--t-weak);}
.search-pill button{
  border:0;width:30px;height:30px;border-radius:50%;background:var(--grad);color:#fff;
  display:grid;place-items:center;cursor:pointer;
}
.btn-grad{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--grad);color:#fff;font-weight:700;font-size:14.5px;
  border:0;border-radius:var(--r-pill);padding:11px 22px;min-height:44px;
  box-shadow:0 12px 26px -14px rgba(91,61,245,.85);cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.btn-grad:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 34px -14px rgba(91,61,245,.9);}
.btn-grad:active{transform:translateY(0);filter:brightness(.96);}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:#fff;font-weight:700;font-size:14.5px;
  border:1.5px solid rgba(255,255,255,.5);border-radius:var(--r-pill);
  padding:11px 22px;min-height:44px;cursor:pointer;transition:all .2s ease;
}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.12);color:#fff;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  border:1.5px solid var(--line);background:#fff;color:var(--t-main);font-weight:600;
  font-size:14px;border-radius:var(--r-pill);padding:9px 18px;min-height:44px;
  cursor:pointer;transition:all .2s ease;
}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px);}
.btn-gold{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--c-gold);color:#2A1B00;font-weight:800;font-size:15px;
  border:0;border-radius:var(--r-pill);padding:13px 28px;min-height:46px;
  box-shadow:0 14px 30px -16px rgba(255,194,75,.95);cursor:pointer;transition:all .2s ease;
}
.btn-gold:hover{color:#2A1B00;transform:translateY(-2px);filter:brightness(1.05);}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);
  background:#fff;cursor:pointer;place-items:center;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--t-main);margin:3px auto;border-radius:2px;transition:.2s;}
.drawer{
  display:none;border-top:1px solid var(--line);background:#fff;padding:10px 0 18px;
}
.drawer.open{display:block;}
.drawer a{
  display:block;padding:13px 20px;font-size:15.5px;font-weight:600;color:var(--t-sub);
  border-bottom:1px solid var(--line);
}
.drawer a.active{color:var(--c-primary);background:var(--soft);}
.drawer .drawer-cta{margin:16px 20px 0;}
/* ============ HERO ============ */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background-color:var(--c-ink);
  background-image:
    radial-gradient(900px 480px at 12% -10%,rgba(91,61,245,.55) 0%,transparent 62%),
    radial-gradient(760px 420px at 96% 12%,rgba(47,216,190,.32) 0%,transparent 60%),
    url("/assets/images/backpic/back-2.png");
  background-size:auto,auto,cover;
  background-position:center,center,center;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,11,34,.72) 0%,rgba(14,11,34,.88) 100%);
}
.hero .container{position:relative;z-index:2;padding-top:74px;padding-bottom:78px;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.6px;
  color:#CFC8FF;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-pill);padding:6px 14px;margin-bottom:20px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:block;}
.hero h1{
  font-size:44px;line-height:1.22;font-weight:800;letter-spacing:.5px;
}
.hero h1 em{
  font-style:normal;background:linear-gradient(120deg,#B9A6FF 0%,#7BF0DD 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{margin-top:18px;font-size:16.5px;color:#C9C5E6;max-width:560px;}
.hero-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap;}
.hero-stats{display:flex;gap:12px;margin-top:34px;flex-wrap:wrap;}
.stat-badge{
  display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;
  color:#EDEBFF;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-pill);padding:8px 16px;font-variant-numeric:tabular-nums;
}
.stat-badge b{color:var(--c-gold);font-size:15px;font-weight:800;}
/* hero main card */
.hero-card{
  position:relative;background:#fff;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:0 34px 70px -30px rgba(0,0,0,.7);color:var(--t-main);
}
.hero-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad);z-index:3;
}
.hero-card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:#ECEAF7;}
.hero-card-media img{width:100%;height:100%;object-fit:cover;}
.tag-float{
  position:absolute;top:14px;left:14px;background:rgba(14,11,34,.78);color:#fff;
  font-size:12px;font-weight:600;padding:5px 12px;border-radius:var(--r-pill);
}
.badge-float{
  position:absolute;right:14px;bottom:14px;background:var(--c-gold);color:#2A1B00;
  font-size:12.5px;font-weight:800;padding:6px 13px;border-radius:var(--r-pill);
  font-variant-numeric:tabular-nums;box-shadow:0 10px 22px -12px rgba(0,0,0,.6);
}
.hero-card-body{padding:22px 24px 24px;}
.hero-card-body h3{font-size:19.5px;}
.param-line{margin-top:9px;font-size:13.5px;color:var(--t-sub);}
.param-line span{color:var(--c-primary);font-weight:700;padding:0 4px;}
.price-row{display:flex;align-items:baseline;gap:10px;margin:16px 0 16px;}
.price-row .now{font-size:27px;font-weight:800;color:var(--c-primary);font-variant-numeric:tabular-nums;}
.price-row .old{font-size:14px;color:var(--t-weak);text-decoration:line-through;}
.price-row .unit{font-size:13px;color:var(--t-weak);}
.hero-card-body .btn-grad{width:100%;}
/* ============ CARD GRID ============ */
.grid-row{display:grid;gap:24px;margin-bottom:24px;}
.row-hero{grid-template-columns:8fr 4fr;}
.row-quad{grid-template-columns:repeat(4,1fr);}
.row-duo{grid-template-columns:repeat(2,1fr);}
.pc{display:flex;flex-direction:column;}
.p-card{
  display:flex;flex-direction:column;height:100%;background:var(--c-white);
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.p-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#DCD7F7;}
.p-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:#EFEDF9;}
.p-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.p-card:hover .p-media img{transform:scale(1.04);}
.mini-tag{
  position:absolute;top:12px;left:12px;font-size:11.5px;font-weight:700;
  padding:4px 11px;border-radius:var(--r-pill);background:var(--soft);color:var(--c-primary);
  transition:background .22s ease,color .22s ease;
}
.p-card:hover .mini-tag{background:var(--grad);color:#fff;}
.metric{
  position:absolute;top:12px;right:12px;font-size:11.5px;font-weight:800;
  padding:4px 11px;border-radius:var(--r-pill);background:rgba(255,255,255,.94);
  color:#2A1B00;font-variant-numeric:tabular-nums;box-shadow:0 6px 16px -8px rgba(0,0,0,.4);
}
.metric.gold{background:var(--c-gold);}
.metric.mint{background:var(--c-accent);color:#08322B;}
.p-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.p-body h3{font-size:18px;}
.p-desc{margin-top:8px;font-size:14px;color:var(--t-sub);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.p-foot{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.p-price{font-size:19px;font-weight:800;color:var(--c-primary);font-variant-numeric:tabular-nums;}
.p-price small{font-size:12.5px;font-weight:600;color:var(--t-weak);margin-left:3px;}
.pc-large .p-media{aspect-ratio:16/10;}
.pc-large .p-body h3{font-size:21px;}
.p-rank{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;color:var(--c-coral);
  background:rgba(255,107,90,.1);border-radius:var(--r-pill);padding:4px 10px;width:fit-content;margin-bottom:10px;
}
/* ============ TESTIMONIALS ============ */
.review-section{
  background:linear-gradient(180deg,#F6F5FB 0%,#EFEDFB 100%);
  border-radius:40px;padding:72px 0;margin:0 0 0;
}
.review-card{
  background:var(--c-panel);border-radius:var(--r-lg);padding:26px 28px;color:#E7E4FA;
  border:1px solid rgba(255,255,255,.08);height:100%;
}
.review-top{display:flex;align-items:center;gap:14px;}
.avatar{
  width:48px;height:48px;border-radius:50%;flex:none;display:grid;place-items:center;
  font-weight:800;font-size:16px;color:#fff;background:var(--grad);
}
.review-name{font-size:15.5px;font-weight:700;color:#fff;}
.review-role{font-size:12.5px;color:#9C97C6;}
.stars{margin-left:auto;color:var(--c-gold);font-size:13.5px;letter-spacing:2px;font-variant-numeric:tabular-nums;}
.review-text{margin-top:16px;font-size:14.8px;line-height:1.8;color:#CFCBEA;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.review-tags{margin-top:16px;display:flex;gap:8px;flex-wrap:wrap;}
.review-tags span{
  font-size:12px;color:#B7B2DE;border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-pill);padding:3px 11px;
}
#reviewCarousel .carousel-indicators{
  position:static;margin:30px 0 0;gap:8px;
}
#reviewCarousel .carousel-indicators [data-bs-target]{
  width:24px;height:4px;border-radius:var(--r-pill);background:#C9C4E6;opacity:1;
  border:0;margin:0;transition:background .25s ease,width .25s ease;
}
#reviewCarousel .carousel-indicators .active{background:var(--grad);width:38px;}
#reviewCarousel .carousel-control-prev,
#reviewCarousel .carousel-control-next{
  position:static;width:44px;height:44px;border-radius:50%;background:#fff;opacity:1;
  border:1px solid var(--line);color:var(--t-main);display:grid;place-items:center;
}
#reviewCarousel .carousel-control-prev:hover,
#reviewCarousel .carousel-control-next:hover{background:var(--soft);color:var(--c-primary);}
.review-controls{display:flex;align-items:center;justify-content:center;gap:18px;margin-top:26px;}
/* ============ GUARANTEE ============ */
.guarantee{
  background:var(--soft);border-radius:22px;padding:26px 28px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.g-item{display:flex;align-items:center;gap:13px;}
.g-icon{
  width:44px;height:44px;border-radius:14px;background:#fff;display:grid;place-items:center;flex:none;
  box-shadow:0 8px 20px -12px rgba(91,61,245,.5);
}
.g-icon svg{width:22px;height:22px;stroke:var(--c-primary);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.g-item b{display:block;font-size:15px;font-weight:700;}
.g-item span{font-size:12.5px;color:var(--t-sub);}
/* ============ CTA ============ */
.cta-banner{
  position:relative;overflow:hidden;border-radius:var(--r-lg);padding:52px 56px;
  background:linear-gradient(135deg,#5B3DF5 0%,#2FD8BE 100%);
  display:flex;align-items:center;justify-content:space-between;gap:36px;color:#fff;
  box-shadow:0 30px 60px -30px rgba(91,61,245,.7);
}
.cta-banner::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(520px 300px at 88% -20%,rgba(255,255,255,.26) 0%,transparent 62%);
}
.cta-banner h2{font-size:29px;position:relative;}
.cta-banner p{margin-top:12px;font-size:15.5px;color:rgba(255,255,255,.9);position:relative;}
.cta-banner .btn-gold{position:relative;flex:none;}
.cta-note{margin-top:14px;font-size:12.5px;color:rgba(255,255,255,.78);position:relative;}
.cta-right{text-align:right;}
/* ============ NEWS / CMS ============ */
.news-card{
  display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);color:inherit;
  transition:transform .22s ease,box-shadow .22s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);color:inherit;}
.news-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#EFEDF9;}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-thumb .mini-tag{position:absolute;top:12px;left:12px;}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.news-body h3{font-size:16.5px;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body p{margin-top:9px;font-size:13.8px;color:var(--t-sub);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-time{margin-top:auto;padding-top:14px;font-size:12.5px;color:var(--t-weak);}
.news-empty{
  grid-column:1/-1;text-align:center;padding:60px 20px;background:#fff;
  border:1px dashed #D8D3F0;border-radius:var(--r-lg);
}
.news-empty .ne-icon{
  width:56px;height:56px;border-radius:18px;background:var(--soft);margin:0 auto 18px;
  display:grid;place-items:center;
}
.news-empty .ne-icon svg{width:26px;height:26px;stroke:var(--c-primary);fill:none;stroke-width:1.7;}
.news-empty p{color:var(--t-sub);font-size:15px;margin-bottom:20px;}
/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;margin-bottom:12px;
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#D9D3F7;box-shadow:var(--sh-1);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:19px 24px;font-size:16px;font-weight:700;
  display:flex;align-items:center;gap:14px;position:relative;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";width:3px;align-self:stretch;border-radius:var(--r-pill);
  background:var(--grad);position:absolute;left:0;top:0;bottom:0;opacity:0;transition:opacity .2s ease;
}
.faq-item[open] summary::before{opacity:1;}
.faq-item summary::after{
  content:"+";margin-left:auto;font-size:22px;font-weight:400;color:var(--c-primary);
  line-height:1;transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--t-sub);}
/* ============ FOOTER ============ */
.site-footer{background:var(--c-ink);color:#B9B6D4;margin-top:96px;position:relative;overflow:hidden;}
.site-footer::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(600px 300px at 8% 0%,rgba(91,61,245,.35) 0%,transparent 62%),
    radial-gradient(520px 280px at 96% 100%,rgba(47,216,190,.2) 0%,transparent 60%);
}
.footer-inner{position:relative;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;font-size:17.5px;font-weight:800;}
.footer-desc{font-size:14px;line-height:1.8;color:#9A96C0;max-width:320px;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.4px;}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:14px;color:#B9B6D4;display:inline-block;transition:all .2s ease;}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-col p{font-size:14px;color:#B9B6D4;line-height:1.8;}
.footer-bottom{
  position:relative;margin-top:52px;padding:22px 0;border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:#8C8AA5;
}
.footer-bottom a{color:#8C8AA5;}
.footer-bottom a:hover{color:#fff;}
/* ============ RESPONSIVE ============ */
@media (max-width:1199.98px){
  .hero h1{font-size:38px;}
  .row-quad{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:991.98px){
  :root{--sec-gap:64px;}
  .main-nav{display:none;}
  .menu-toggle{display:grid;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero h1{font-size:31px;}
  .row-hero{grid-template-columns:1fr;}
  .row-duo{grid-template-columns:1fr;}
  .guarantee{grid-template-columns:repeat(2,1fr);}
  .cta-banner{flex-direction:column;align-items:flex-start;padding:40px 32px;}
  .cta-right{text-align:left;width:100%;}
  .sec-head h2{font-size:25px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .row-quad{grid-template-columns:1fr;}
  .hero .container{padding-top:52px;padding-bottom:56px;}
  .hero h1{font-size:28px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions a{width:100%;}
  .guarantee{grid-template-columns:repeat(2,1fr);gap:16px;padding:20px;}
  .review-section{border-radius:26px;padding:52px 0;}
  .cta-banner{padding:32px 22px;border-radius:22px;}
  .cta-banner h2{font-size:23px;}
  .cta-banner .btn-gold{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{margin-top:56px;}
  .sec-head{margin-bottom:26px;}
  .sec-head h2{font-size:22px;}
  .search-pill{display:none;}
  .login-link{display:none !important;}
}
@media (max-width:520px){
  .brand-text{font-size:16px;}
  .p-body{padding:16px 16px 18px;}
  .hero-card-body{padding:18px 18px 20px;}
}

/* roulang page: article */
:root{
  --brand:#5B3DF5;
  --brand-2:#2FD8BE;
  --gold:#FFC24B;
  --coral:#FF6B5A;
  --ink:#12102A;
  --ink-2:#5A5878;
  --ink-3:#8C8AA5;
  --line:#E9E7F5;
  --bg:#F6F5FB;
  --white:#FFFFFF;
  --night:#0E0B22;
  --night-2:#171036;
  --soft:#F1EEFF;
  --grad:linear-gradient(135deg,#5B3DF5 0%,#2FD8BE 100%);
  --r-sm:10px;
  --r-md:18px;
  --r-lg:28px;
  --r-pill:999px;
  --sh-1:0 2px 10px rgba(20,14,50,.06);
  --sh-2:0 18px 44px -18px rgba(91,61,245,.35);
  --sh-3:0 24px 54px -20px rgba(47,216,190,.45);
  --sect-y:96px;
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  background-image:radial-gradient(rgba(91,61,245,.045) 1px,transparent 1px);
  background-size:22px 22px;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,transform .2s ease}
a:hover{color:#4326d8}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.2px;color:var(--ink)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
.num{font-variant-numeric:tabular-nums}

/* ===== 导航 ===== */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  transition:height .25s ease,box-shadow .25s ease,background .25s ease;
}
.site-header.scrolled{box-shadow:0 8px 30px -18px rgba(20,14,50,.35)}
.header-inner{display:flex;align-items:center;gap:22px;height:68px;transition:height .25s ease}
.site-header.scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:28px;height:28px;border-radius:9px;background:var(--grad);position:relative;
  box-shadow:0 6px 16px -8px rgba(91,61,245,.9);
}
.brand-mark::before{
  content:"";position:absolute;inset:0;margin:auto;width:12px;height:12px;
  background:#fff;clip-path:polygon(50% 0%,61% 35%,98% 35%,68% 57%,79% 92%,50% 70%,21% 92%,32% 57%,2% 35%,39% 35%);
}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.4px}
.main-nav{display:flex;align-items:center;gap:26px;flex:1 1 auto;justify-content:center}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);padding:6px 2px;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-8px;height:3px;border-radius:3px;
  background:var(--grad);opacity:0;transform:scaleX(.4);transition:.22s ease;
}
.main-nav a:hover{color:var(--brand);transform:translateY(-6px)}
.main-nav a.active{color:var(--ink);font-weight:700}
.main-nav a.active::after{opacity:1;transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.nav-search{
  display:flex;align-items:center;gap:6px;background:var(--bg);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:4px 6px 4px 14px;transition:.2s ease;
}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(91,61,245,.15)}
.nav-search input{
  border:0;background:transparent;outline:none;font-family:var(--font);
  font-size:14px;color:var(--ink);width:130px;
}
.nav-search input::placeholder{color:var(--ink-3)}
.nav-search button{
  width:30px;height:30px;border:0;border-radius:50%;background:var(--grad);color:#fff;
  display:grid;place-items:center;cursor:pointer;transition:transform .2s ease;
}
.nav-search button:hover{transform:scale(1.06)}
.link-login{font-size:14px;color:var(--ink-2)}
.link-login:hover{color:var(--brand)}
.btn-grad{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:42px;padding:0 20px;border:0;border-radius:var(--r-pill);
  background:var(--grad);color:#fff;font-size:15px;font-weight:600;font-family:var(--font);
  cursor:pointer;box-shadow:0 10px 24px -14px rgba(91,61,245,.95);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.btn-grad:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3);filter:saturate(1.05)}
.btn-grad:active{transform:translateY(0)}
.btn-gold{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:48px;padding:0 28px;border:0;border-radius:var(--r-pill);
  background:var(--gold);color:#3A2A00;font-size:16px;font-weight:700;font-family:var(--font);
  cursor:pointer;transition:transform .2s ease,box-shadow .2s ease;
}
.btn-gold:hover{color:#3A2A00;transform:translateY(-2px);box-shadow:0 18px 36px -18px rgba(255,194,75,.95)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:46px;padding:0 22px;border-radius:var(--r-pill);
  border:1.5px solid rgba(91,61,245,.45);color:var(--brand);font-size:15px;font-weight:600;
  background:transparent;transition:.2s ease;
}
.btn-ghost:hover{border-color:var(--brand);background:var(--soft);color:var(--brand);transform:translateY(-2px)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:#fff;cursor:pointer;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;padding:14px 20px 22px;
}
.mobile-drawer.open{display:block}
.mobile-drawer a{
  display:block;padding:12px 4px;font-size:16px;color:var(--ink-2);border-bottom:1px solid var(--line);
}
.mobile-drawer a.active{color:var(--brand);font-weight:700}
.mobile-drawer .btn-grad{width:100%;margin-top:16px}

/* ===== 面包屑 & 文章头 ===== */
.page-head{background:#fff;border-bottom:1px solid var(--line);padding:26px 0 42px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:var(--ink-3)}
.crumb li{display:flex;align-items:center;gap:10px}
.crumb li+li::before{content:"/";color:#CFCBE8}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--brand)}
.crumb .current{color:var(--ink-2);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{margin-top:26px;max-width:900px}
.chip{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--soft);color:var(--brand);font-size:13px;font-weight:600;
}
.article-head h1{
  margin-top:16px;font-size:clamp(26px,3.4vw,42px);line-height:1.28;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:18px;
  font-size:13.5px;color:var(--ink-3);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#CFCBE8}

/* ===== 正文区 ===== */
.article-main{padding:var(--sect-y) 0}
.article-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:34px clamp(20px,4vw,48px);
}
.article-content{max-width:760px;line-height:1.9;font-size:17px;color:#231F44}
.article-content>*+*{margin-top:1.5em}
.article-content p{margin:0}
.article-content h2{
  position:relative;margin-top:2em;padding-left:16px;font-size:26px;line-height:1.35;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;background:var(--grad);
}
.article-content h3{font-size:19px;margin-top:1.6em;font-weight:600}
.article-content ul,.article-content ol{padding-left:22px;list-style:disc}
.article-content ol{list-style:decimal}
.article-content li{margin-bottom:10px}
.article-content blockquote{
  margin:1.6em 0;padding:18px 22px;border-left:4px solid var(--brand);
  background:var(--soft);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--ink-2);
}
.article-content img{border-radius:var(--r-md);margin:1.6em 0;width:100%;height:auto}
.article-content figure{margin:1.6em 0}
.article-content figcaption{font-size:13.5px;color:var(--ink-3);text-align:center;margin-top:8px}
.article-content table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;font-size:15px}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap}
.article-content th{background:var(--soft);font-weight:600}
.article-content pre{overflow-x:auto;background:var(--night);color:#E7E4FF;padding:18px;border-radius:var(--r-md);font-size:14px}
.article-content a{text-decoration:underline;text-underline-offset:3px}
.article-empty{
  display:grid;place-items:center;gap:16px;text-align:center;padding:40px 10px;
  border:1px dashed var(--line);border-radius:var(--r-md);background:var(--bg);
}
.article-empty .ico{
  width:56px;height:56px;border-radius:18px;background:var(--soft);display:grid;place-items:center;
}
.article-empty .ico::before{
  content:"";width:22px;height:22px;border-radius:6px;border:2px solid var(--brand);display:block;
}
.article-empty p{color:var(--ink-2)}
.back-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.text-btn{
  display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 18px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;color:var(--ink-2);font-size:14.5px;font-weight:600;transition:.2s ease;
}
.text-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}

/* ===== 侧栏 ===== */
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:24px;margin-bottom:24px;
}
.side-card h3{font-size:17px;margin-bottom:16px}
.toc-list li{margin-bottom:12px;font-size:14.5px;color:var(--ink-2)}
.toc-list li::before{content:"—";color:var(--brand-2);margin-right:8px}
.rank-list li{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px dashed var(--line)}
.rank-list li:last-child{border-bottom:0;padding-bottom:0}
.rank-no{
  flex:0 0 auto;width:26px;height:26px;border-radius:9px;background:var(--soft);color:var(--brand);
  font-size:13px;font-weight:700;display:grid;place-items:center;
}
.rank-list a{font-size:14.5px;color:var(--ink);line-height:1.55}
.rank-list a:hover{color:var(--brand)}
.rank-meta{display:block;font-size:12.5px;color:var(--ink-3);margin-top:4px}

/* ===== 相关推荐 ===== */
.section{padding:var(--sect-y) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3;position:relative;padding-left:16px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:4px;background:var(--grad);
}
.section-head .more{font-size:14.5px;color:var(--ink-2);font-weight:600}
.section-head .more:hover{color:var(--brand)}
.card-grid{display:grid;gap:24px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--soft)}
.card-media img{width:100%;height:100%;object-fit:cover}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px;line-height:1.45}
.card-body p{font-size:14.5px;color:var(--ink-2);line-height:1.7}
.card-foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.badge-pill{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--gold);color:#3A2A00;font-size:12.5px;font-weight:700;font-variant-numeric:tabular-nums;
}
.badge-grad{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--grad);color:#fff;font-size:12.5px;font-weight:700;font-variant-numeric:tabular-nums;
}

/* ===== CTA 横幅 ===== */
.cta-band{
  border-radius:var(--r-lg);background:var(--grad);color:#fff;padding:44px clamp(22px,4vw,52px);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:var(--sh-2);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.35),transparent 70%);
}
.cta-band h2{color:#fff;font-size:clamp(20px,2.4vw,28px);line-height:1.35}
.cta-band p{color:rgba(255,255,255,.9);margin-top:10px;font-size:15px;max-width:560px}
.cta-note{font-size:12.5px;color:rgba(255,255,255,.78);margin-top:10px}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:0 20px;box-shadow:var(--sh-1);
  position:relative;overflow:hidden;
}
.faq-item[open]{border-color:rgba(91,61,245,.35)}
.faq-item[open]::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad)}
.faq-item summary{
  list-style:none;cursor:pointer;font-size:16px;font-weight:600;padding:18px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:20px;color:var(--brand);transition:transform .2s ease;line-height:1;
}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg)}
.faq-item .faq-body{padding:0 0 20px;font-size:15px;line-height:1.8;color:var(--ink-2)}

/* ===== 页脚 ===== */
.site-footer{background:var(--night);color:#B9B6D4;margin-top:20px;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{box-shadow:none}
.footer-brand .brand-text{color:#fff}
.footer-desc{font-size:14px;line-height:1.85;color:#B9B6D4;max-width:320px}
.footer-col h4{color:#fff;font-size:14px;margin-bottom:16px;letter-spacing:.5px}
.footer-col ul li{margin-bottom:11px}
.footer-col a{font-size:14px;color:#B9B6D4;display:inline-block}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-col p{font-size:13.5px;line-height:1.85;color:#9E9AC0}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#9E9AC0;
}
.footer-bottom a{color:#B9B6D4}
.footer-bottom a:hover{color:#fff}

@media (max-width:991.98px){
  :root{--sect-y:64px}
  .main-nav{display:none}
  .nav-search{display:none}
  .nav-toggle{display:grid}
  .header-actions .btn-grad{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .brand-text{font-size:16px}
  .link-login{display:none}
  .article-card{padding:24px 18px}
  .article-content{font-size:16px;line-height:1.85}
  .article-content h2{font-size:22px}
  .cta-band{padding:32px 20px;flex-direction:column;align-items:flex-start}
  .cta-band .btn-gold{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:520px){
  .meta-row{gap:10px}
  .article-head h1{font-size:26px}
}

/* roulang page: category2 */
:root{
  --brand:#5B3DF5;
  --brand-soft:#F1EEFF;
  --mint:#2FD8BE;
  --gold:#FFC24B;
  --coral:#FF6B5A;
  --ink:#0E0B22;
  --panel:#171036;
  --bg:#F6F5FB;
  --card:#FFFFFF;
  --t1:#12102A;
  --t2:#5A5878;
  --t3:#8C8AA5;
  --line:#E9E7F5;
  --grad:linear-gradient(135deg,#5B3DF5 0%,#2FD8BE 100%);
  --r-sm:10px;
  --r-md:18px;
  --r-lg:28px;
  --r-pill:999px;
  --sh-1:0 2px 10px rgba(20,14,50,.06);
  --sh-2:0 18px 44px -18px rgba(91,61,245,.35);
  --sh-3:0 24px 54px -20px rgba(47,216,190,.45);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.78;
  color:var(--t1);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,transform .2s ease}
a:hover{color:#3F24D6}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.2px;color:var(--t1)}
p{margin:0}
button,input{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
.section{padding:96px 0}
.section-sm{padding:64px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap}
.sec-title{position:relative;padding-left:18px;font-size:30px}
.sec-title::before{content:"";position:absolute;left:0;top:9px;bottom:9px;width:6px;border-radius:6px;background:var(--grad)}
.sec-sub{color:var(--t2);font-size:15px;margin-top:10px;max-width:660px}
.text-link{font-size:14.5px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.text-link:hover{transform:translateX(3px)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:1080;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:0 12px 34px -22px rgba(18,16,42,.65)}
.header-inner{display:flex;align-items:center;gap:16px;height:68px;transition:height .25s ease}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:28px;height:28px;border-radius:9px;background:var(--grad);position:relative;flex:0 0 auto;box-shadow:0 8px 18px -10px rgba(91,61,245,.95)}
.brand-mark::after{content:"";position:absolute;inset:8px;background:#fff;opacity:.95;clip-path:polygon(50% 0,61% 39%,100% 50%,61% 61%,50% 100%,39% 61%,0 50%,39% 39%)}
.brand-text{font-size:17px;font-weight:700;color:var(--t1);letter-spacing:.4px;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:10px}
.main-nav a{position:relative;padding:8px 12px;font-size:15px;font-weight:500;color:var(--t2);border-radius:var(--r-sm);transition:color .2s ease,transform .2s ease}
.main-nav a:hover{color:var(--brand);transform:translateY(-2px)}
.main-nav a.active{color:var(--t1);font-weight:700}
.main-nav a.active::after{content:"";position:absolute;left:12px;right:12px;bottom:1px;height:3px;border-radius:3px;background:var(--grad)}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-search{display:flex;align-items:center;height:40px;padding:0 6px 0 14px;border-radius:var(--r-pill);border:1px solid var(--line);background:#FBFAFF;transition:border-color .2s,box-shadow .2s,background .2s}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(91,61,245,.15);background:#fff}
.nav-search input{border:0;background:transparent;outline:none;width:148px;font-size:14px}
.nav-search input::placeholder{color:var(--t3)}
.nav-search button{width:30px;height:30px;border-radius:50%;border:0;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#fff;cursor:pointer;transition:transform .2s ease}
.nav-search button:hover{transform:scale(1.06)}
.link-login{font-size:14.5px;font-weight:500;color:var(--t2)}
.link-login:hover{color:var(--brand)}
.btn-grad{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 22px;border:0;border-radius:var(--r-pill);background:var(--grad);color:#fff;font-weight:600;cursor:pointer;box-shadow:0 12px 26px -14px rgba(91,61,245,.85);transition:transform .2s ease,box-shadow .2s ease,color .2s ease}
.btn-grad:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 34px -14px rgba(47,216,190,.85)}
.btn-grad:active{transform:translateY(0)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14.5px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--t1)}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:12px 20px 22px}
.mobile-drawer.open{display:block}
.mobile-drawer a{display:block;padding:13px 2px;font-size:16px;color:var(--t1);border-bottom:1px solid var(--line)}
.mobile-drawer a.active{color:var(--brand);font-weight:700}
.mobile-drawer .btn-grad{width:100%;margin-top:16px}

/* ---------- banner ---------- */
.page-banner{position:relative;overflow:hidden;background:var(--ink);color:#fff}
.page-banner::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;opacity:.36}
.page-banner::after{content:"";position:absolute;inset:0;background:
  radial-gradient(58% 78% at 10% 8%,rgba(91,61,245,.6),transparent 62%),
  radial-gradient(52% 72% at 92% 92%,rgba(47,216,190,.36),transparent 62%),
  linear-gradient(180deg,rgba(14,11,34,.62),rgba(14,11,34,.94))}
.banner-inner{position:relative;z-index:2;padding:70px 0 76px}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:#C9C6E6;margin-bottom:20px}
.breadcrumb-list li{display:flex;align-items:center;gap:8px}
.breadcrumb-list li+li::before{content:"/";color:rgba(255,255,255,.42)}
.breadcrumb-list a{color:#C9C6E6}
.breadcrumb-list a:hover{color:#fff}
.breadcrumb-list .current{color:#fff;font-weight:600}
.page-banner h1{font-size:46px;color:#fff;margin-bottom:18px}
.page-banner .banner-text{max-width:780px;color:rgba(255,255,255,.84);font-size:16.5px}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.banner-tags span{display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 14px;border-radius:var(--r-pill);background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);color:#EFEDFF;font-size:13.5px;font-variant-numeric:tabular-nums}

/* ---------- intro ---------- */
.intro-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:38px 40px}
.intro-card h2{font-size:26px;margin-bottom:18px;position:relative;padding-left:16px}
.intro-card h2::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:5px;border-radius:5px;background:var(--grad)}
.intro-card p{color:var(--t2);font-size:16px;margin-bottom:14px}
.intro-card p:last-child{margin-bottom:0}

/* ---------- topic cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.topic-card{display:flex;flex-direction:column;height:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.cover{position:relative;aspect-ratio:4/3;overflow:hidden;background:#EDEBF8}
.cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.topic-card:hover .cover img{transform:scale(1.05)}
.chip{position:absolute;top:14px;left:14px;display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);background:rgba(255,255,255,.92);color:var(--brand);font-size:12.5px;font-weight:700;box-shadow:0 6px 16px -10px rgba(18,16,42,.7);transition:background .25s ease,color .25s ease}
.topic-card:hover .chip{background:var(--grad);color:#fff}
.cover-badge{position:absolute;right:14px;bottom:14px}
.badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 11px;border-radius:var(--r-pill);font-size:12.5px;font-weight:700;line-height:1;font-variant-numeric:tabular-nums}
.badge-gold{background:var(--gold);color:#3A2A00}
.badge-soft{background:var(--brand-soft);color:var(--brand)}
.badge-grad{background:var(--grad);color:#fff}
.card-body{display:flex;flex-direction:column;flex:1;gap:12px;padding:22px 22px 24px}
.card-body h3{font-size:19px}
.card-desc{color:var(--t2);font-size:14.8px;line-height:1.72;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:51px}
.card-meta{display:flex;flex-wrap:wrap;gap:8px}
.btn-outline{display:inline-flex;align-items:center;justify-content:center;width:100%;min-height:44px;margin-top:auto;padding:0 18px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;color:var(--t1);font-weight:600;font-size:14.5px;cursor:pointer;transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease}
.btn-outline:hover{background:var(--grad);border-color:transparent;color:#fff;transform:translateY(-2px)}

/* ---------- stat strip ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;background:var(--brand-soft);border-radius:20px;padding:30px 26px}
.stat-item{text-align:center;padding:6px 8px}
.stat-num{display:block;font-size:34px;font-weight:700;line-height:1.1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-variant-numeric:tabular-nums}
.stat-label{display:block;margin-top:8px;font-size:14px;color:var(--t2);font-weight:600}

/* ---------- cta ---------- */
.cta-banner{position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:34px;padding:46px 48px;border-radius:var(--r-lg);background:var(--grad);color:#fff;box-shadow:0 30px 66px -32px rgba(91,61,245,.9)}
.cta-banner::after{content:"";position:absolute;inset:0;background:radial-gradient(42% 96% at 88% 0%,rgba(255,255,255,.3),transparent 62%);pointer-events:none}
.cta-copy{position:relative;z-index:2;max-width:640px}
.cta-copy h2{color:#fff;font-size:30px;margin-bottom:12px}
.cta-copy p{color:rgba(255,255,255,.9);font-size:16px}
.cta-note{display:inline-block;margin-top:14px;font-size:13px;color:rgba(255,255,255,.78)}
.btn-gold{position:relative;z-index:2;display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;min-height:50px;padding:0 28px;border:0;border-radius:var(--r-pill);background:var(--gold);color:#33240A;font-weight:700;cursor:pointer;box-shadow:0 16px 34px -16px rgba(0,0,0,.55);transition:transform .2s ease,background .2s ease}
.btn-gold:hover{background:#FFCF6B;color:#33240A;transform:translateY(-2px)}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--sh-1);overflow:hidden}
.faq-item[open]::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--grad)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;font-size:16px;font-weight:600;cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"";width:14px;height:14px;flex:0 0 auto;background:
  linear-gradient(#5B3DF5,#5B3DF5) center/100% 2px no-repeat,
  linear-gradient(#5B3DF5,#5B3DF5) center/2px 100% no-repeat;transition:transform .25s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 24px 22px 28px;color:var(--t2);font-size:15.5px;line-height:1.85}

/* ---------- form ---------- */
.panel-form{display:grid;grid-template-columns:1fr 1fr;gap:44px;padding:42px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1)}
.form-intro h2{font-size:27px;margin-bottom:14px}
.form-intro p{color:var(--t2);font-size:15.5px;margin-bottom:18px}
.mini-list li{position:relative;padding-left:20px;margin-bottom:10px;color:var(--t2);font-size:14.8px}
.mini-list li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;background:var(--grad)}
.data-form{display:grid;gap:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--t2);margin-bottom:8px}
.field input{width:100%;min-height:48px;padding:0 14px;border-radius:12px;border:1px solid var(--line);background:#FBFAFF;color:var(--t1);transition:border-color .2s,box-shadow .2s,background .2s}
.field input::placeholder{color:var(--t3)}
.field input:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px rgba(91,61,245,.18)}
.data-form .btn-grad{width:100%}
.form-hint{font-size:13.5px;color:var(--mint);min-height:20px}
.form-hint.error{color:var(--coral)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#B9B6D4;padding:74px 0 28px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{color:#fff;font-size:17px;font-weight:700}
.footer-desc{font-size:14px;line-height:1.85;color:#9B98BC;max-width:340px}
.footer-col h4{color:#fff;font-size:14px;margin-bottom:16px;letter-spacing:.5px}
.footer-col li{margin-bottom:10px}
.footer-col a{display:inline-block;color:#B9B6D4;font-size:14px;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-col p{font-size:14px;line-height:1.85;color:#9B98BC}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;margin-top:42px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);font-size:13.5px}
.footer-bottom a{color:#B9B6D4;font-size:13.5px}
.footer-bottom a:hover{color:#fff}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .main-nav a{padding:8px 9px;font-size:14.5px}
  .nav-search input{width:118px}
}
@media (max-width:991.98px){
  .main-nav,.header-tools .nav-search,.header-tools .link-login,.header-tools .btn-grad{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .page-banner h1{font-size:36px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .panel-form{grid-template-columns:1fr;gap:30px;padding:32px}
  .cta-banner{flex-direction:column;align-items:flex-start;padding:38px 32px}
  .section{padding:76px 0}
}
@media (min-width:992px){
  .mobile-drawer{display:none !important}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .section{padding:60px 0}
  .section-sm{padding:48px 0}
  .page-banner h1{font-size:29px}
  .banner-inner{padding:52px 0 58px}
  .sec-title{font-size:23px}
  .sec-title::before{top:5px;bottom:5px;width:5px}
  .intro-card{padding:26px 22px}
  .intro-card h2{font-size:22px}
  .cta-copy h2{font-size:23px}
  .stat-num{font-size:28px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:575.98px){
  .card-grid{grid-template-columns:1fr}
  .page-banner h1{font-size:27px}
  .stat-strip{padding:24px 18px;gap:14px}
}

/* roulang page: category3 */
:root{
  --brand:#5B3DF5;
  --brand-2:#2FD8BE;
  --gold:#FFC24B;
  --coral:#FF6B5A;
  --ink:#0E0B22;
  --panel:#171036;
  --bg:#F6F5FB;
  --card:#FFFFFF;
  --t1:#12102A;
  --t2:#5A5878;
  --t3:#8C8AA5;
  --line:#E9E7F5;
  --soft:#F1EEFF;
  --grad:linear-gradient(135deg,#5B3DF5 0%,#2FD8BE 100%);
  --r-sm:10px;
  --r-md:18px;
  --r-lg:28px;
  --r-pill:999px;
  --sh-1:0 2px 10px rgba(20,14,50,.06);
  --sh-2:0 18px 44px -18px rgba(91,61,245,.35);
  --sh-3:0 24px 54px -20px rgba(47,216,190,.45);
  --sec-y:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.78;
  color:var(--t1);
  background:var(--bg);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,transform .2s ease;}
a:hover{color:#4a2fd0;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--t1);letter-spacing:.2px;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
.section{padding:var(--sec-y) 0;}
.section-alt{background:#fff;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px;flex-wrap:wrap;}
.sec-title{
  position:relative;
  padding-left:20px;
  font-size:30px;
  line-height:1.3;
  font-weight:700;
}
.sec-title::before{
  content:"";
  position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:7px;height:28px;border-radius:4px;background:var(--grad);
}
.sec-sub{color:var(--t2);font-size:15px;margin:10px 0 0;padding-left:20px;}
.text-link{font-size:15px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.text-link::after{content:"›";font-size:18px;line-height:1;transition:transform .2s ease;}
.text-link:hover::after{transform:translateX(3px);}

/* ---------- 按钮 ---------- */
.btn-grad,.btn-ghost,.btn-gold,.btn-soft{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 26px;border:0;border-radius:var(--r-pill);
  font-size:15.5px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
}
.btn-grad{background:var(--grad);color:#fff;box-shadow:var(--sh-2);}
.btn-grad:hover{color:#fff;transform:translateY(-2px);box-shadow:0 22px 46px -18px rgba(91,61,245,.55);}
.btn-grad:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.55);}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);}
.btn-gold{background:var(--gold);color:#402C00;box-shadow:0 16px 34px -16px rgba(255,194,75,.75);}
.btn-gold:hover{color:#402C00;transform:translateY(-2px);}
.btn-soft{background:var(--soft);color:var(--brand);}
.btn-soft:hover{background:#E6E0FF;color:var(--brand);transform:translateY(-2px);}
.btn-sm{min-height:42px;padding:9px 20px;font-size:14.5px;}
.btn-block{width:100%;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:transparent;
  transition:background .28s ease,box-shadow .28s ease,height .28s ease;
}
.header-inner{
  height:68px;display:flex;align-items:center;gap:22px;
  transition:height .28s ease;
}
.site-header.scrolled{background:#fff;box-shadow:0 6px 26px rgba(20,14,50,.09);}
.site-header.scrolled .header-inner{height:60px;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  position:relative;width:30px;height:30px;border-radius:10px;
  background:var(--grad);flex:0 0 auto;
  box-shadow:0 6px 16px -6px rgba(91,61,245,.7);
}
.logo-mark::before{
  content:"";position:absolute;inset:8px;background:#fff;
  clip-path:polygon(50% 0%,61% 39%,100% 50%,61% 61%,50% 100%,39% 61%,0% 50%,39% 39%);
}
.logo-text{
  font-size:17px;font-weight:700;letter-spacing:.4px;color:#fff;
  transition:color .28s ease;
}
.site-header.scrolled .logo-text{color:var(--t1);}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px;}
.main-nav a{
  position:relative;padding:10px 14px;font-size:15.5px;font-weight:500;
  color:rgba(255,255,255,.86);border-radius:12px;
  transition:color .2s ease,transform .2s ease,background .2s ease;
}
.main-nav a:hover{color:#fff;transform:translateY(-6px);background:rgba(255,255,255,.1);}
.main-nav a.active{color:#fff;font-weight:700;}
.main-nav a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:3px;background:var(--grad);
}
.site-header.scrolled .main-nav a{color:var(--t2);}
.site-header.scrolled .main-nav a:hover{color:var(--brand);background:var(--soft);}
.site-header.scrolled .main-nav a.active{color:var(--brand);}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.26);
  border-radius:var(--r-pill);
  padding:4px 6px 4px 16px;
  transition:background .28s ease,border-color .28s ease;
}
.nav-search input{
  width:150px;border:0;background:transparent;color:#fff;font-size:14.5px;padding:6px 0;outline:none;
}
.nav-search input::placeholder{color:rgba(255,255,255,.7);}
.nav-search button{
  width:32px;height:32px;border:0;border-radius:50%;background:var(--grad);
  display:flex;align-items:center;justify-content:center;cursor:pointer;color:#fff;
}
.site-header.scrolled .nav-search{background:var(--bg);border-color:var(--line);}
.site-header.scrolled .nav-search input{color:var(--t1);}
.site-header.scrolled .nav-search input::placeholder{color:var(--t3);}
.nav-login{
  font-size:15px;font-weight:600;color:rgba(255,255,255,.9);
  transition:color .28s ease;
}
.nav-login:hover{color:#fff;text-decoration:underline;}
.site-header.scrolled .nav-login{color:var(--t2);}
.site-header.scrolled .nav-login:hover{color:var(--brand);}
.nav-toggle{
  display:none;width:44px;height:44px;border:0;border-radius:12px;
  background:rgba(255,255,255,.16);cursor:pointer;position:relative;
  transition:background .28s ease;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:#fff;content:"";
  transition:background .28s ease;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.site-header.scrolled .nav-toggle{background:var(--soft);}
.site-header.scrolled .nav-toggle span,
.site-header.scrolled .nav-toggle span::before,
.site-header.scrolled .nav-toggle span::after{background:var(--brand);}

.mobile-drawer{
  position:fixed;inset:0;z-index:1040;background:#fff;
  display:none;flex-direction:column;padding:22px 22px 34px;overflow-y:auto;
}
.mobile-drawer.open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-head .logo-text{color:var(--t1);}
.drawer-close{
  width:44px;height:44px;border:0;border-radius:12px;background:var(--soft);
  color:var(--brand);font-size:20px;cursor:pointer;line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:24px;}
.drawer-nav a{
  padding:14px 16px;border-radius:14px;font-size:16.5px;font-weight:600;color:var(--t1);
  background:#FAF9FF;
}
.drawer-nav a.active{background:var(--soft);color:var(--brand);}
.drawer-nav a:hover{background:var(--soft);color:var(--brand);}
.drawer-search{display:flex;gap:10px;margin-bottom:24px;}
.drawer-search input{
  flex:1;min-height:46px;border:1px solid var(--line);border-radius:14px;padding:0 16px;
  font-size:15px;color:var(--t1);background:#fff;
}
.drawer-cta{margin-top:auto;}

/* ---------- 页头 banner ---------- */
.page-banner{
  position:relative;overflow:hidden;
  padding:158px 0 84px;
  background:var(--ink);
}
.banner-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.55;
}
.banner-overlay{
  position:absolute;inset:0;
  background:
    radial-gradient(560px 340px at 12% 18%,rgba(91,61,245,.55),transparent 70%),
    radial-gradient(520px 320px at 88% 82%,rgba(47,216,190,.4),transparent 70%),
    linear-gradient(180deg,rgba(14,11,34,.72),rgba(14,11,34,.94));
}
.banner-inner{position:relative;z-index:2;}
.breadcrumb-nav{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;margin-bottom:22px;}
.breadcrumb-nav a{color:rgba(255,255,255,.72);}
.breadcrumb-nav a:hover{color:#fff;}
.breadcrumb-nav .sep{color:rgba(255,255,255,.4);}
.breadcrumb-nav .current{color:rgba(255,255,255,.95);font-weight:600;}
.banner-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.24);
  color:#fff;font-size:13.5px;font-weight:600;letter-spacing:.5px;
  margin-bottom:20px;
}
.banner-tag::before{
  content:"";width:8px;height:8px;border-radius:50%;background:var(--brand-2);
}
.page-banner h1{
  color:#fff;font-size:44px;line-height:1.22;font-weight:700;max-width:820px;
}
.banner-sub{
  color:rgba(255,255,255,.82);font-size:17px;line-height:1.75;
  max-width:660px;margin:18px 0 0;
}
.banner-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;}

/* ---------- 徽章 ---------- */
.badge-gold,.badge-grad,.badge-soft{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:700;letter-spacing:.2px;
  font-variant-numeric:tabular-nums;white-space:nowrap;
}
.badge-gold{background:var(--gold);color:#3D2900;}
.badge-grad{background:var(--grad);color:#fff;}
.badge-soft{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.26);}
.badge-soft-dark{background:var(--soft);color:var(--brand);}

/* ---------- 简介区 ---------- */
.intro-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:40px;align-items:start;}
.intro-copy p{color:var(--t2);font-size:16.5px;line-height:1.85;}
.intro-copy p strong{color:var(--t1);}
.stat-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:28px;
}
.stat-panel h3{font-size:17px;margin-bottom:18px;}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.stat-item{padding:14px 16px;border-radius:var(--r-md);background:#FAF9FF;border:1px solid var(--line);}
.stat-num{
  font-size:26px;font-weight:700;color:var(--brand);line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.stat-label{font-size:13.5px;color:var(--t2);margin-top:4px;}

/* ---------- 课程卡片 ---------- */
.course-card{
  position:relative;height:100%;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.course-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.course-card:hover .thumb img{transform:scale(1.045);}
.thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#EDEAF9;}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.card-tag{
  position:absolute;top:12px;left:12px;z-index:2;
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);background:rgba(255,255,255,.92);color:var(--brand);
  font-size:12.5px;font-weight:700;letter-spacing:.3px;
  transition:background .25s ease,color .25s ease;
}
.course-card:hover .card-tag{background:var(--grad);color:#fff;}
.card-badge{
  position:absolute;top:12px;right:12px;z-index:2;
  display:inline-flex;align-items:center;height:26px;padding:0 11px;
  border-radius:var(--r-pill);background:var(--gold);color:#3D2900;
  font-size:12.5px;font-weight:700;font-variant-numeric:tabular-nums;
}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.course-card h3{font-size:19px;line-height:1.45;margin-bottom:10px;}
.card-desc{color:var(--t2);font-size:15px;line-height:1.72;margin:0 0 16px;}
.param-list{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;}
.param-list li{
  font-size:13px;color:var(--t2);background:#F7F6FD;
  border:1px solid var(--line);border-radius:var(--r-pill);
  padding:4px 12px;font-variant-numeric:tabular-nums;
}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:14px;}
.price{display:flex;align-items:baseline;gap:8px;font-variant-numeric:tabular-nums;}
.price em{font-style:normal;font-size:22px;font-weight:700;color:var(--brand);}
.price s{color:var(--t3);font-size:14px;}
.price span{font-size:13.5px;color:var(--t2);}
.card-lg .thumb{aspect-ratio:16/10;}
.card-lg h3{font-size:22px;}
.mini-card .card-body{padding:18px 18px 20px;}
.mini-card h3{font-size:16.5px;}
.mini-card .card-desc{font-size:14px;line-height:1.68;margin-bottom:14px;}
.mini-card .param-list li{font-size:12.5px;padding:3px 10px;}
.mini-card .price em{font-size:19px;}

/* ---------- 对比表 ---------- */
.table-wrap{
  overflow-x:auto;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--sh-1);
}
.table-wrap table{width:100%;min-width:760px;border-collapse:collapse;}
.table-wrap th,.table-wrap td{
  padding:15px 20px;text-align:left;font-size:15px;border-bottom:1px solid var(--line);
}
.table-wrap thead th{
  background:var(--soft);color:var(--t1);font-weight:700;font-size:14.5px;
  white-space:nowrap;
}
.table-wrap tbody tr:last-child td{border-bottom:0;}
.table-wrap tbody tr:hover{background:#FBFAFF;}
.table-wrap td:first-child{font-weight:600;color:var(--t1);}
.table-wrap td{color:var(--t2);font-variant-numeric:tabular-nums;}
.table-note{font-size:13.5px;color:var(--t3);margin-top:14px;}

/* ---------- 横向专题 ---------- */
.scroll-rail{
  display:flex;gap:22px;overflow-x:auto;padding:6px 4px 18px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.scroll-rail::-webkit-scrollbar{height:6px;}
.scroll-rail::-webkit-scrollbar-track{background:var(--line);border-radius:var(--r-pill);}
.scroll-rail::-webkit-scrollbar-thumb{background:var(--grad);border-radius:var(--r-pill);}
.rail-card{
  flex:0 0 300px;scroll-snap-align:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease;
}
.rail-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.rail-card .thumb{aspect-ratio:16/10;}
.rail-body{padding:18px 20px 22px;}
.rail-meta{display:flex;align-items:center;gap:10px;margin-bottom:10px;flex-wrap:wrap;}
.rail-body h3{font-size:17px;line-height:1.5;margin-bottom:8px;}
.rail-body p{font-size:14px;color:var(--t2);line-height:1.7;margin:0;}
.rail-time{font-size:12.5px;color:var(--t3);font-variant-numeric:tabular-nums;}

/* ---------- CTA 横幅 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--grad);border-radius:var(--r-lg);
  padding:46px 48px;display:flex;align-items:center;justify-content:space-between;
  gap:32px;color:#fff;box-shadow:0 30px 70px -34px rgba(91,61,245,.7);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-70px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.13);
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{color:#fff;font-size:29px;line-height:1.32;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.9);margin:0;font-size:15.5px;max-width:620px;}
.cta-right{display:flex;flex-direction:column;align-items:flex-end;gap:10px;flex:0 0 auto;}
.cta-fine{font-size:12.5px;color:rgba(255,255,255,.82);}

/* ---------- 表单 ---------- */
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:36px;
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:14px;font-weight:600;color:var(--t1);}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 16px;
  border:1px solid var(--line);border-radius:12px;background:#FCFBFF;
  font-size:15px;color:var(--t1);font-family:inherit;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{min-height:110px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);background:#fff;
  box-shadow:0 0 0 2px rgba(91,61,245,.18);
}
.field-full{grid-column:1 / -1;}
.form-foot{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:24px;}
.form-hint{font-size:13.5px;color:var(--t3);}
.form-msg{font-size:14px;font-weight:600;display:none;}
.form-msg.ok{display:block;color:var(--brand-2);}
.form-msg.err{display:block;color:var(--coral);}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  margin-bottom:12px;overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item:hover{border-color:#DCD6FA;}
.faq-item[open]{box-shadow:var(--sh-1);}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16.5px;font-weight:600;color:var(--t1);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  border-radius:0 3px 3px 0;background:var(--grad);
  opacity:0;transition:opacity .25s ease;
}
.faq-item[open] summary::before{opacity:1;}
.faq-plus{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  background:var(--soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;line-height:1;
  transition:transform .25s ease,background .25s ease,color .25s ease;
}
.faq-item[open] .faq-plus{transform:rotate(45deg);background:var(--grad);color:#fff;}
.faq-answer{padding:0 24px 22px 24px;color:var(--t2);font-size:15.5px;line-height:1.82;}
.faq-answer p:last-child{margin-bottom:0;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);color:#B9B6D4;margin-top:0;
  position:relative;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(520px 300px at 8% 10%,rgba(91,61,245,.32),transparent 70%),
    radial-gradient(460px 280px at 92% 90%,rgba(47,216,190,.22),transparent 70%);
  pointer-events:none;
}
.footer-inner{position:relative;z-index:2;padding:72px 0 30px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{
  width:28px;height:28px;border-radius:9px;background:var(--grad);position:relative;flex:0 0 auto;
}
.footer-brand .brand-mark::before{
  content:"";position:absolute;inset:7px;background:#fff;
  clip-path:polygon(50% 0%,61% 39%,100% 50%,61% 61%,50% 100%,39% 61%,0% 50%,39% 39%);
}
.footer-brand .brand-text{color:#fff;font-size:17px;font-weight:700;letter-spacing:.4px;}
.footer-desc{font-size:14.5px;line-height:1.8;color:#B9B6D4;max-width:340px;}
.footer-col h4{color:#fff;font-size:14.5px;font-weight:700;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col li a{color:#B9B6D4;font-size:14.5px;display:inline-block;transition:color .2s ease,transform .2s ease;}
.footer-col li a:hover{color:#fff;transform:translateX(2px);}
.footer-col p{font-size:14.5px;line-height:1.8;color:#B9B6D4;margin:0;}
.footer-bottom{
  margin-top:44px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:#8B88AE;
}
.footer-bottom a{color:#B9B6D4;}
.footer-bottom a:hover{color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .sec-title{font-size:28px;}
  .page-banner h1{font-size:40px;}
}
@media (max-width:991.98px){
  :root{--sec-y:72px;}
  .main-nav,.nav-search,.nav-login{display:none;}
  .nav-toggle{display:block;}
  .header-actions{gap:10px;}
  .intro-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .page-banner{padding:136px 0 68px;}
  .page-banner h1{font-size:34px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 34px;}
  .cta-right{align-items:flex-start;width:100%;}
  .cta-band h2{font-size:25px;}
  .form-grid{grid-template-columns:1fr;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  :root{--sec-y:58px;}
  .sec-title{font-size:23px;}
  .sec-title::before{height:22px;width:6px;}
  .page-banner{padding:122px 0 56px;}
  .page-banner h1{font-size:29px;line-height:1.3;}
  .banner-sub{font-size:15.5px;}
  .sec-head{margin-bottom:26px;}
  .card-body{padding:20px 20px 22px;}
  .card-lg h3{font-size:19px;}
  .form-card{padding:24px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-inner{padding:56px 0 26px;}
  .cta-band{padding:32px 24px;border-radius:22px;}
  .cta-band h2{font-size:22px;}
  .cta-right .btn-gold{width:100%;}
  .rail-card{flex:0 0 262px;}
  .stat-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .page-banner h1{font-size:26px;}
  .banner-badges{gap:8px;}
  .badge-gold,.badge-grad,.badge-soft{font-size:12px;padding:0 10px;}
  .stat-grid{grid-template-columns:1fr;}
  .sec-title{font-size:21px;}
}

/* roulang page: category1 */
/* ============ 1. 设计令牌 ============ */
:root{
  --brand:#5B3DF5;
  --brand-deep:#4726d8;
  --brand-2:#2FD8BE;
  --gold:#FFC24B;
  --coral:#FF6B5A;
  --night:#0E0B22;
  --panel:#171036;
  --bg:#F6F5FB;
  --card:#FFFFFF;
  --text:#12102A;
  --text-2:#5A5878;
  --text-3:#8C8AA5;
  --line:#E9E7F5;
  --soft:#F1EEFF;
  --r-sm:10px;
  --r-md:18px;
  --r-lg:28px;
  --r-pill:999px;
  --sh-1:0 2px 10px rgba(20,14,50,.06);
  --sh-2:0 18px 44px -18px rgba(91,61,245,.35);
  --sh-3:0 24px 54px -20px rgba(47,216,190,.45);
  --grad:linear-gradient(135deg,#5B3DF5 0%,#2FD8BE 100%);
  --sec-y:96px;
  --nav-h:68px;
}

/* ============ 2. Reset / Base ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.78;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,transform .2s ease,opacity .2s ease;}
a:hover{color:var(--brand-deep);}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--text);line-height:1.3;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,button,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 3. 通用组件 ============ */
.badge-gold,.badge-grad,.badge-outline{
  display:inline-flex;align-items:center;gap:5px;
  height:24px;padding:0 11px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:700;line-height:1;
  font-variant-numeric:tabular-nums;white-space:nowrap;
}
.badge-gold{background:var(--gold);color:#3A2600;}
.badge-grad{background:var(--grad);color:#fff;}
.badge-outline{border:1px solid rgba(255,255,255,.45);color:#fff;background:rgba(255,255,255,.08);}
.badge-ghost{background:var(--soft);color:var(--brand);border:1px solid #DED7FF;}

.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 22px;border-radius:var(--r-pill);
  background:var(--grad);color:#fff!important;font-size:15px;font-weight:700;
  box-shadow:var(--sh-2);transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.btn-brand:hover{transform:translateY(-2px);box-shadow:var(--sh-3);filter:brightness(1.04);}
.btn-brand:active{transform:translateY(0);}
.btn-gold{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:46px;padding:0 26px;border-radius:var(--r-pill);
  background:var(--gold);color:#3A2600!important;font-size:15.5px;font-weight:800;
  box-shadow:0 16px 34px -16px rgba(255,194,75,.85);
  transition:transform .2s ease,box-shadow .2s ease;
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 20px 40px -16px rgba(255,194,75,.95);}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 22px;border-radius:var(--r-pill);
  border:1.5px solid rgba(255,255,255,.55);color:#fff!important;
  font-size:15px;font-weight:600;background:transparent;
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-2px);}
.btn-soft{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:38px;padding:0 16px;border-radius:var(--r-pill);
  background:var(--soft);color:var(--brand);font-size:13.5px;font-weight:700;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.btn-soft:hover{background:var(--grad);color:#fff;transform:translateY(-2px);}

.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--brand);text-transform:uppercase;
}
.sec-eyebrow::before{content:"";width:26px;height:3px;border-radius:2px;background:var(--grad);}
.sec-title{font-size:30px;line-height:1.32;margin:14px 0 0;}
.sec-desc{margin-top:14px;color:var(--text-2);max-width:760px;}
.section{padding:var(--sec-y) 0;}
.section-light{background:var(--bg);}
.section-white{background:#fff;}

/* ============ 4. 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:var(--nav-h);display:flex;align-items:center;
  background:transparent;transition:height .25s ease,background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  height:60px;background:#fff;box-shadow:0 10px 30px -20px rgba(20,14,50,.55);
}
.header-inner{display:flex;align-items:center;gap:26px;width:100%;}
.site-logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  position:relative;width:30px;height:30px;border-radius:9px;
  background:var(--grad);flex:0 0 auto;
}
.brand-mark::before{
  content:"";position:absolute;inset:0;margin:auto;width:16px;height:16px;
  background:#fff;clip-path:polygon(50% 0%,61% 35%,98% 35%,68% 57%,79% 91%,50% 70%,21% 91%,32% 57%,2% 35%,39% 35%);
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.01em;color:#fff;transition:color .25s ease;}
.site-header.is-scrolled .brand-text{color:var(--text);}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px;}
.main-nav a{
  position:relative;padding:8px 2px;font-size:15px;font-weight:600;
  color:rgba(255,255,255,.86);transition:color .2s ease,transform .2s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;border-radius:3px;
  background:var(--grad);opacity:0;transform:scaleX(.4);transition:opacity .2s ease,transform .2s ease;
}
.main-nav a:hover{color:var(--brand-2);transform:translateY(-3px);}
.main-nav a.active::after{opacity:1;transform:scaleX(1);}
.site-header.is-scrolled .main-nav a{color:var(--text-2);}
.site-header.is-scrolled .main-nav a:hover{color:var(--brand);}
.site-header.is-scrolled .main-nav a.active{color:var(--text);}
.header-tools{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-search{display:flex;align-items:center;gap:6px;height:40px;padding:0 6px 0 16px;border-radius:var(--r-pill);background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);transition:background .25s ease,border-color .25s ease;}
.nav-search input{width:150px;border:0;background:transparent;outline:none;font-size:14px;color:#fff;}
.nav-search input::placeholder{color:rgba(255,255,255,.62);}
.nav-search button{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:rgba(255,255,255,.2);color:#fff;}
.nav-search button:hover{background:var(--brand-2);color:#04231d;}
.site-header.is-scrolled .nav-search{background:#F3F1FC;border-color:var(--line);}
.site-header.is-scrolled .nav-search input{color:var(--text);}
.site-header.is-scrolled .nav-search input::placeholder{color:var(--text-3);}
.site-header.is-scrolled .nav-search button{background:#E4DFFB;color:var(--brand);}
.nav-login{font-size:15px;font-weight:600;color:rgba(255,255,255,.86);}
.site-header.is-scrolled .nav-login{color:var(--text-2);}
.nav-login:hover{color:var(--brand-2);}
.site-header.is-scrolled .nav-login:hover{color:var(--brand);}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;align-items:center;justify-content:center;flex-direction:column;gap:5px;}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:#fff;transition:background .25s ease;}
.site-header.is-scrolled .nav-toggle span{background:var(--text);}
.nav-drawer{
  position:fixed;left:0;right:0;top:var(--nav-h);z-index:999;
  background:#fff;padding:18px 20px 26px;
  box-shadow:0 30px 50px -30px rgba(20,14,50,.5);
  transform:translateY(-12px);opacity:0;visibility:hidden;
  transition:transform .25s ease,opacity .25s ease,visibility .25s;
}
.nav-drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;}
.nav-drawer a.drawer-link{
  display:block;padding:14px 4px;font-size:16px;font-weight:600;color:var(--text);
  border-bottom:1px solid var(--line);
}
.nav-drawer a.drawer-link.active{color:var(--brand);}
.nav-drawer .drawer-cta{margin-top:18px;width:100%;}

/* ============ 5. 分类页头 Banner ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:calc(var(--nav-h) + 62px) 0 76px;
  background:var(--night);
  color:#fff;
}
.page-hero-bg{position:absolute;inset:0;}
.page-hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.5;}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(760px 420px at 12% 6%,rgba(91,61,245,.55),transparent 68%),
    radial-gradient(680px 380px at 88% 84%,rgba(47,216,190,.34),transparent 70%),
    linear-gradient(180deg,rgba(14,11,34,.72) 0%,rgba(14,11,34,.9) 100%);
}
.page-hero-inner{position:relative;z-index:2;}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.66);margin-bottom:22px;}
.breadcrumb-list li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb-list li+li::before{content:"/";color:rgba(255,255,255,.38);}
.breadcrumb-list a{color:rgba(255,255,255,.82);}
.breadcrumb-list a:hover{color:#fff;}
.breadcrumb-list [aria-current]{color:rgba(255,255,255,.6);}
.page-hero h1{
  color:#fff;font-size:clamp(30px,4.2vw,46px);line-height:1.2;
  max-width:900px;margin:14px 0 0;
}
.hero-lead{margin-top:18px;max-width:720px;font-size:17px;color:rgba(255,255,255,.82);}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}

/* ============ 6. 简介与数据面板 ============ */
.intro-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px 30px 26px;box-shadow:var(--sh-1);
}
.stat-panel{
  background:var(--panel);border-radius:var(--r-lg);padding:26px;
  display:grid;grid-template-columns:1fr 1fr;gap:16px;
  box-shadow:var(--sh-2);
}
.stat-cell{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-md);padding:16px;
}
.stat-cell b{display:block;font-size:26px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;line-height:1.2;}
.stat-cell span{display:block;margin-top:6px;font-size:13px;color:rgba(255,255,255,.68);}
.spot-list{margin-top:20px;display:grid;gap:12px;}
.spot-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2);}
.spot-list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;border-radius:50%;background:var(--grad);
}

/* ============ 7. 标签筛选 ============ */
.filter-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.filter-tags a{
  display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);font-size:14px;font-weight:600;color:var(--text-2);
  transition:border-color .2s ease,color .2s ease,background .2s ease,transform .2s ease;
}
.filter-tags a:hover,.filter-tags a.is-on{background:var(--grad);border-color:transparent;color:#fff;transform:translateY(-2px);}

/* ============ 8. 装备卡片（2 列大卡） ============ */
.gear-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:34px;}
.gear-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease;
}
.gear-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.gear-media{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:#E9E7F5;}
.gear-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.gear-card:hover .gear-media img{transform:scale(1.04);}
.gear-media .tag-float{
  position:absolute;left:16px;top:16px;
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.92);color:var(--brand);font-size:12.5px;font-weight:700;
  transition:background .22s ease,color .22s ease;
}
.gear-card:hover .tag-float{background:var(--grad);color:#fff;}
.gear-media .badge-float{
  position:absolute;right:16px;bottom:16px;
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--gold);color:#3A2600;font-size:12.5px;font-weight:800;font-variant-numeric:tabular-nums;
}
.gear-body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1 1 auto;}
.gear-body h3{font-size:19px;line-height:1.45;}
.gear-summary{margin-top:10px;color:var(--text-2);font-size:15px;line-height:1.7;}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.gear-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:18px;border-top:1px dashed var(--line);
}
.price{font-size:21px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;}
.price small{font-size:12.5px;font-weight:600;color:var(--text-3);margin-left:6px;}

/* ============ 9. 规格速查表 ============ */
.table-wrap{
  margin-top:30px;overflow-x:auto;border-radius:var(--r-md);
  border:1px solid var(--line);background:#fff;box-shadow:var(--sh-1);
}
.spec-table{width:100%;min-width:760px;border-collapse:collapse;font-size:14.5px;}
.spec-table th,.spec-table td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line);}
.spec-table thead th{
  background:var(--soft);color:var(--brand);font-size:13.5px;font-weight:800;
  white-space:nowrap;letter-spacing:.02em;
}
.spec-table tbody tr:last-child td{border-bottom:0;}
.spec-table tbody tr:hover{background:#FAF9FF;}
.spec-table td:first-child{font-weight:700;color:var(--text);}
.spec-table td{color:var(--text-2);}

/* ============ 10. 咨询表单 ============ */
.form-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:34px;box-shadow:var(--sh-1);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:26px;}
.form-field{display:flex;flex-direction:column;gap:8px;}
.form-field.full{grid-column:1 / -1;}
.form-field label{font-size:13.5px;font-weight:700;color:var(--text-2);}
.form-field input,.form-field select,.form-field textarea{
  width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--line);
  background:#FCFBFF;font-size:15px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.form-field textarea{min-height:110px;resize:vertical;}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  border-color:var(--brand);background:#fff;box-shadow:0 0 0 2px rgba(91,61,245,.18);
}
.form-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:24px;}
.form-hint{font-size:13px;color:var(--text-3);}
.form-msg{margin-top:14px;font-size:14px;font-weight:600;}
.form-msg.ok{color:#12A88F;}
.form-msg.err{color:var(--coral);}

/* ============ 11. CTA 横幅 ============ */
.cta-banner{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:var(--grad);color:#fff;
  padding:46px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-2);
}
.cta-banner::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(520px 260px at 88% 12%,rgba(255,255,255,.24),transparent 70%);
  pointer-events:none;
}
.cta-banner h2{color:#fff;font-size:28px;line-height:1.35;position:relative;z-index:2;}
.cta-banner p{margin-top:12px;color:rgba(255,255,255,.9);font-size:15.5px;max-width:620px;position:relative;z-index:2;}
.cta-banner .cta-action{position:relative;z-index:2;display:flex;flex-direction:column;align-items:flex-end;gap:10px;}
.cta-banner .cta-note{font-size:12.5px;color:rgba(255,255,255,.82);}

/* ============ 12. FAQ ============ */
.faq-list{margin-top:30px;display:grid;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:6px 22px;position:relative;overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--grad);opacity:0;transition:opacity .2s ease;
}
.faq-item[open]{box-shadow:var(--sh-1);border-color:#DED7FF;}
.faq-item[open]::before{opacity:1;}
.faq-item summary{
  list-style:none;cursor:pointer;padding:16px 34px 16px 0;position:relative;
  font-size:16px;font-weight:700;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";position:absolute;right:6px;top:50%;width:14px;height:14px;margin-top:-7px;
  background:
    linear-gradient(var(--brand),var(--brand)) center/14px 2px no-repeat,
    linear-gradient(var(--brand),var(--brand)) center/2px 14px no-repeat;
  transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-answer{padding:0 0 18px;color:var(--text-2);font-size:15px;line-height:1.85;}

/* ============ 13. 页脚 ============ */
.site-footer{background:var(--night);color:#B9B6D4;padding:72px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;}
.footer-brand .brand-text{color:#fff;font-size:17px;font-weight:800;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:#B9B6D4;max-width:340px;}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:14px;color:#B9B6D4;display:inline-block;transition:color .2s ease,transform .2s ease;}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-col p{font-size:14px;line-height:1.85;color:#B9B6D4;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13.5px;color:#8F8CB0;
}
.footer-bottom a{color:#B9B6D4;}
.footer-bottom a:hover{color:#fff;}

/* ============ 14. 响应式 ============ */
@media (max-width:1199.98px){
  .nav-search input{width:118px;}
  .main-nav{gap:20px;}
}
@media (max-width:991.98px){
  :root{--sec-y:76px;--nav-h:64px;}
  .main-nav{display:none;}
  .header-tools .nav-search,.header-tools .nav-login{display:none;}
  .nav-toggle{display:inline-flex;}
  .gear-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .cta-banner{flex-direction:column;align-items:flex-start;padding:38px 30px;}
  .cta-banner .cta-action{align-items:flex-start;width:100%;}
  .page-hero{padding:calc(var(--nav-h) + 48px) 0 60px;}
}
@media (max-width:767.98px){
  :root{--sec-y:60px;}
  body{font-size:16px;}
  .sec-title{font-size:23px;}
  .intro-panel{padding:24px 20px;}
  .stat-panel{grid-template-columns:1fr 1fr;padding:20px;}
  .stat-cell b{font-size:22px;}
  .gear-body{padding:20px;}
  .form-panel{padding:24px 20px;}
  .faq-item{padding:4px 18px;}
  .cta-banner h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:519.98px){
  .hero-badges{gap:8px;}
  .badge-gold,.badge-grad,.badge-outline{font-size:12px;padding:0 9px;}
  .filter-tags a{height:36px;padding:0 14px;font-size:13.5px;}
  .stat-panel{grid-template-columns:1fr;}
}

/* roulang page: category4 */
:root{
  --brand:#5B3DF5;
  --brand-2:#2FD8BE;
  --gold:#FFC24B;
  --coral:#FF6B5A;
  --ink:#0E0B22;
  --panel:#171036;
  --bg:#F6F5FB;
  --card:#FFFFFF;
  --lav:#F1EEFF;
  --t1:#12102A;
  --t2:#5A5878;
  --t3:#8C8AA5;
  --line:#E9E7F5;
  --grad:linear-gradient(135deg,#5B3DF5 0%,#2FD8BE 100%);
  --grad-soft:linear-gradient(135deg,rgba(91,61,245,.12) 0%,rgba(47,216,190,.12) 100%);
  --r-sm:10px;
  --r-md:18px;
  --r-lg:28px;
  --r-pill:999px;
  --sh-1:0 2px 10px rgba(20,14,50,.06);
  --sh-2:0 18px 44px -18px rgba(91,61,245,.35);
  --sh-3:0 24px 54px -20px rgba(47,216,190,.45);
  --maxw:1240px;
  --sec-y:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,Segoe UI,sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--t1);
  background-color:var(--bg);
  background-image:radial-gradient(rgba(91,61,245,.045) 1px,transparent 1px);
  background-size:22px 22px;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:#4326d6;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;
}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--t1);line-height:1.3;letter-spacing:.2px;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea{font-family:inherit;font-size:15px;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:1400px){.container{max-width:var(--maxw);}}
.section{padding:var(--sec-y) 0;}
.section-sm{padding:64px 0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:32px;}
.section-head h2{font-size:30px;line-height:1.3;position:relative;padding-left:18px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:6px;border-radius:var(--r-pill);background:var(--grad);
}
.section-head .sec-sub{color:var(--t2);font-size:15px;max-width:640px;margin-top:10px;}
.text-link{font-size:14.5px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.text-link::after{content:"→";transition:transform .2s ease;}
.text-link:hover::after{transform:translateX(4px);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,padding .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px -18px rgba(20,14,50,.35);}
.header-inner{display:flex;align-items:center;gap:24px;height:68px;}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:30px;height:30px;border-radius:9px;background:var(--grad);position:relative;display:inline-block;
  box-shadow:0 8px 18px -8px rgba(91,61,245,.8);flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;inset:6px;background:#fff;
  clip-path:polygon(50% 0,61% 35%,98% 35%,68% 57%,79% 91%,50% 70%,21% 91%,32% 57%,2% 35%,39% 35%);
}
.brand-text{font-size:17px;font-weight:700;color:var(--t1);white-space:nowrap;letter-spacing:.3px;}
.main-nav{display:flex;align-items:center;gap:8px;margin-left:6px;}
.main-nav a{
  position:relative;display:inline-block;padding:8px 12px;font-size:15px;font-weight:500;color:var(--t2);
  border-radius:var(--r-pill);transition:color .2s ease,transform .2s ease,background .2s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%) scaleX(0);
  width:22px;height:3px;border-radius:var(--r-pill);background:var(--grad);transition:transform .22s ease;
}
.main-nav a:hover{color:var(--brand);transform:translateY(-4px);}
.main-nav a:hover::after,.main-nav a.active::after{transform:translateX(-50%) scaleX(1);}
.main-nav a.active{color:var(--t1);font-weight:700;}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:6px;height:40px;padding:0 6px 0 14px;border:1px solid var(--line);
  border-radius:var(--r-pill);background:#fff;box-shadow:var(--sh-1);transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(91,61,245,.16);}
.search-box input{border:0;outline:none;background:transparent;width:132px;color:var(--t1);}
.search-box input::placeholder{color:var(--t3);}
.search-box button{
  width:30px;height:30px;border-radius:50%;background:var(--lav);display:grid;place-items:center;color:var(--brand);
  transition:background .2s ease,color .2s ease;
}
.search-box button:hover{background:var(--grad);color:#fff;}
.link-login{font-size:14.5px;font-weight:600;color:var(--t2);padding:8px 4px;}
.link-login:hover{color:var(--brand);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:#fff;
  place-items:center;margin-left:auto;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--t1);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--t1);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;padding:16px 20px 22px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer nav{display:flex;flex-direction:column;gap:4px;margin-bottom:14px;}
.mobile-drawer nav a{padding:12px 10px;border-radius:14px;color:var(--t2);font-weight:500;}
.mobile-drawer nav a.active{background:var(--lav);color:var(--brand);font-weight:700;}
.mobile-drawer .btn{width:100%;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;
  padding:12px 24px;border-radius:14px;font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  text-align:center;line-height:1.2;
}
.btn-grad{background:var(--grad);color:#fff;box-shadow:var(--sh-2);}
.btn-grad:hover{color:#fff;transform:translateY(-3px);box-shadow:var(--sh-3);}
.btn-grad:active{transform:translateY(0);}
.btn-ghost{border-color:rgba(91,61,245,.35);color:var(--brand);background:rgba(255,255,255,.6);}
.btn-ghost:hover{border-color:var(--brand);background:var(--lav);transform:translateY(-3px);}
.btn-gold{background:var(--gold);color:#2A1A00;box-shadow:0 16px 34px -18px rgba(255,194,75,.9);}
.btn-gold:hover{color:#2A1A00;transform:translateY(-3px);box-shadow:0 20px 40px -18px rgba(255,194,75,1);}
.btn-pill{border-radius:var(--r-pill);}
.btn-sm{min-height:38px;padding:9px 18px;font-size:14px;border-radius:12px;}

/* ---------- 徽章 / 标签 ---------- */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:700;font-variant-numeric:tabular-nums;white-space:nowrap;
}
.badge-gold{background:var(--gold);color:#3A2500;}
.badge-grad{background:var(--grad);color:#fff;}
.badge-soft{background:var(--lav);color:var(--brand);}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:var(--r-pill);
  background:var(--lav);color:var(--brand);font-size:12.5px;font-weight:600;
}
.card-media .tag{position:absolute;top:12px;left:12px;z-index:2;}
.card-media .badge-pill{position:absolute;top:12px;right:12px;z-index:2;}

/* ---------- 页头 banner ---------- */
.page-banner{
  position:relative;overflow:hidden;border-radius:0 0 var(--r-lg) var(--r-lg);
  background-color:var(--ink);
  background-image:linear-gradient(120deg,rgba(14,11,34,.94) 0%,rgba(23,16,54,.82) 48%,rgba(14,11,34,.9) 100%),
    radial-gradient(circle at 12% 18%,rgba(91,61,245,.55),transparent 46%),
    radial-gradient(circle at 88% 82%,rgba(47,216,190,.4),transparent 50%),
    url("/assets/images/backpic/back-2.png");
  background-size:cover,auto,auto,cover;
  background-position:center;
  padding:64px 0 56px;
}
.page-banner .crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:#B9B6D4;margin-bottom:16px;
  list-style:none;padding:0;
}
.page-banner .crumb li{display:inline-flex;align-items:center;gap:8px;}
.page-banner .crumb li+li::before{content:"/";color:rgba(255,255,255,.35);}
.page-banner .crumb a{color:#D6D3EC;}
.page-banner .crumb a:hover{color:#fff;}
.page-banner .crumb .current{color:var(--brand-2);}
.page-banner h1{
  color:#fff;font-size:42px;line-height:1.22;max-width:880px;
}
.page-banner .banner-sub{margin-top:16px;max-width:720px;color:#BFBCDA;font-size:16.5px;line-height:1.8;}
.banner-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.banner-badges .badge-pill{height:26px;}

/* ---------- 简介段 ---------- */
.intro-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
  padding:28px 30px;margin-top:-34px;position:relative;z-index:2;
}
.intro-panel p{color:var(--t2);font-size:16px;line-height:1.9;}
.intro-panel strong{color:var(--t1);}
.intro-stats{display:flex;flex-wrap:wrap;gap:26px;margin-top:20px;padding-top:20px;border-top:1px dashed var(--line);}
.intro-stats .stat{min-width:120px;}
.intro-stats .num{font-size:26px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2;}
.intro-stats .lbl{font-size:13.5px;color:var(--t3);}

/* ---------- 横排列表卡 ---------- */
.row-list{display:flex;flex-direction:column;gap:22px;}
.row-card{
  display:flex;gap:22px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:18px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.row-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(91,61,245,.28);}
.row-card-media{
  position:relative;flex:0 0 236px;border-radius:20px;overflow:hidden;aspect-ratio:4/3;background:var(--lav);
}
.row-card-media img{width:100%;height:100%;object-fit:cover;border-radius:inherit;}
.row-card-body{flex:1 1 auto;display:flex;flex-direction:column;padding:4px 6px 2px 0;}
.row-card-body h3{font-size:19px;margin-bottom:8px;}
.row-card-body p{color:var(--t2);font-size:15px;line-height:1.75;margin-bottom:14px;}
.row-card-foot{margin-top:auto;display:flex;flex-wrap:wrap;align-items:center;gap:14px;}
.price{font-size:21px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;}
.price .unit{font-size:13px;color:var(--t3);font-weight:500;margin-left:2px;}
.price-old{font-size:13.5px;color:var(--coral);text-decoration:line-through;font-variant-numeric:tabular-nums;}
.row-card-foot .btn{margin-left:auto;}
.spec-line{font-size:13.5px;color:var(--t3);display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;}
.spec-line span{background:#F7F6FD;border-radius:8px;padding:2px 10px;}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}

/* ---------- 右侧参数列 ---------- */
.side-panel{
  position:sticky;top:92px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:24px;
}
.side-panel h3{font-size:18px;margin-bottom:6px;}
.side-panel .side-sub{font-size:14px;color:var(--t3);margin-bottom:18px;}
.param-item{
  display:flex;align-items:flex-start;justify-content:space-between;gap:12px;
  padding:12px 0;border-bottom:1px dashed var(--line);
}
.param-item:last-of-type{border-bottom:0;}
.param-item .k{font-size:14.5px;color:var(--t2);}
.param-item .v{font-size:14.5px;font-weight:700;color:var(--t1);font-variant-numeric:tabular-nums;}
.side-note{
  margin-top:16px;background:var(--lav);border-radius:14px;padding:12px 14px;font-size:13.5px;color:var(--t2);line-height:1.7;
}
.mini-form{margin-top:22px;padding-top:20px;border-top:1px solid var(--line);}
.mini-form h4{font-size:15px;margin-bottom:14px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--t2);margin-bottom:6px;}
.field input,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:12px;padding:11px 13px;background:#FCFCFE;color:var(--t1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:84px;resize:vertical;line-height:1.7;}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(91,61,245,.18);background:#fff;}
.form-hint{font-size:12.5px;color:var(--t3);margin-top:10px;line-height:1.6;}
.form-msg{font-size:13px;margin-top:10px;display:none;}
.form-msg.ok{display:block;color:#149E85;}
.form-msg.err{display:block;color:var(--coral);}

/* ---------- 徽章条 ---------- */
.assure-bar{
  background:var(--lav);border-radius:20px;padding:22px 26px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
}
.assure-item{display:flex;align-items:center;gap:12px;}
.assure-item svg{flex:0 0 auto;color:var(--brand);}
.assure-item .txt strong{display:block;font-size:15px;color:var(--t1);}
.assure-item .txt span{font-size:12.5px;color:var(--t3);}

/* ---------- 对比表 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-md);background:#fff;box-shadow:var(--sh-1);}
table.cmp{width:100%;border-collapse:collapse;min-width:560px;}
table.cmp th,table.cmp td{padding:14px 18px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line);}
table.cmp th{background:#FAF9FF;color:var(--t2);font-weight:700;font-size:13.5px;letter-spacing:.4px;}
table.cmp td{color:var(--t1);font-variant-numeric:tabular-nums;}
table.cmp tr:last-child td{border-bottom:0;}

/* ---------- CTA ---------- */
.cta-banner{
  position:relative;overflow:hidden;border-radius:var(--r-lg);background:var(--grad);color:#fff;
  padding:44px 46px;display:flex;flex-wrap:wrap;align-items:center;gap:28px;box-shadow:var(--sh-2);
}
.cta-banner::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.24),transparent 65%);
}
.cta-banner .cta-text{flex:1 1 420px;position:relative;z-index:2;}
.cta-banner h2{color:#fff;font-size:28px;margin-bottom:10px;}
.cta-banner p{color:rgba(255,255,255,.9);font-size:15.5px;max-width:620px;}
.cta-banner .cta-action{position:relative;z-index:2;}
.cta-banner .cta-small{margin-top:12px;font-size:12.5px;color:rgba(255,255,255,.82);}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--sh-1);
  overflow:hidden;position:relative;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad);
  transform:scaleY(0);transform-origin:top;transition:transform .25s ease;
}
.faq-item[open]{border-color:rgba(91,61,245,.3);box-shadow:var(--sh-2);}
.faq-item[open]::before{transform:scaleY(1);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 56px 18px 22px;font-size:16px;font-weight:700;color:var(--t1);position:relative;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;background:var(--lav);color:var(--brand);
  display:grid;place-items:center;font-size:16px;font-weight:700;transition:transform .25s ease,background .25s ease,color .25s ease;
}
.faq-item[open] summary::after{content:"−";background:var(--grad);color:#fff;transform:translateY(-50%) rotate(180deg);}
.faq-item .faq-body{padding:0 22px 20px;font-size:15px;color:var(--t2);line-height:1.85;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#B9B6D4;margin-top:96px;position:relative;overflow:hidden;}
.site-footer::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 8% 12%,rgba(91,61,245,.35),transparent 42%),
             radial-gradient(circle at 92% 88%,rgba(47,216,190,.22),transparent 46%);
  pointer-events:none;
}
.footer-inner{position:relative;z-index:2;padding:66px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-text{color:#fff;font-size:17px;}
.footer-desc{font-size:14px;line-height:1.85;color:#9D9AC0;max-width:320px;}
.footer-col h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.5px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:#B9B6D4;display:inline-block;transition:color .2s ease,transform .2s ease;}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-col p{font-size:13.5px;line-height:1.85;color:#9D9AC0;}
.footer-bottom{
  position:relative;z-index:2;margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13.5px;color:#8C8AA5;
}
.footer-bottom a{color:#B9B6D4;}
.footer-bottom a:hover{color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  :root{--sec-y:80px;}
  .main-nav a{padding:8px 9px;font-size:14.5px;}
  .search-box input{width:104px;}
  .page-banner h1{font-size:36px;}
}
@media (max-width:991.98px){
  :root{--sec-y:68px;}
  .main-nav,.header-tools{display:none;}
  .nav-toggle{display:grid;}
  .page-banner{padding:48px 0 44px;border-radius:0 0 20px 20px;}
  .page-banner h1{font-size:32px;}
  .page-banner .banner-sub{font-size:15.5px;}
  .intro-panel{margin-top:-22px;padding:22px;}
  .row-card-media{flex:0 0 200px;}
  .side-panel{position:static;margin-top:28px;}
  .assure-bar{grid-template-columns:repeat(2,1fr);gap:16px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-banner{padding:34px 28px;}
}
@media (max-width:767.98px){
  :root{--sec-y:58px;}
  body{font-size:16px;}
  .section-head h2{font-size:24px;}
  .section-head{margin-bottom:24px;}
  .page-banner h1{font-size:28px;}
  .banner-badges{gap:8px;}
  .row-card{flex-direction:column;gap:16px;padding:14px;}
  .row-card-media{flex:0 0 auto;width:100%;aspect-ratio:16/9;}
  .row-card-foot .btn{margin-left:0;width:100%;}
  .intro-stats{gap:18px;}
  .intro-stats .num{font-size:22px;}
  .cta-banner{padding:28px 22px;flex-direction:column;align-items:flex-start;}
  .cta-banner .cta-action{width:100%;}
  .cta-banner .cta-action .btn{width:100%;}
  .assure-bar{padding:18px;grid-template-columns:repeat(2,1fr);}
  .faq-item summary{padding:16px 52px 16px 18px;font-size:15px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-inner{padding:48px 0 22px;}
  .site-footer{margin-top:64px;}
}
@media (max-width:575.98px){
  .assure-bar{grid-template-columns:1fr;}
  .price{font-size:19px;}
}