/* roulang page: index */
:root{
  --brand:#6C4BFF;
  --brand-deep:#5438D6;
  --brand-soft:#EFEBFF;
  --mint:#16D6A6;
  --lemon:#FFC93C;
  --ink:#1B1830;
  --ink-2:#625E7A;
  --line:#E8E6F2;
  --bg:#F7F6FC;
  --card:#FFFFFF;
  --dark:#14102E;
  --dark-2:#1E1842;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 6px 20px rgba(20,16,46,.06);
  --sh-2:0 14px 34px rgba(20,16,46,.14);
  --tr:200ms ease;
  --sec:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  padding-bottom:72px;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color var(--tr);}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;}
h1{font-size:clamp(30px,4.4vw,48px);line-height:1.25;font-weight:800;letter-spacing:0;}
h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:700;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
:focus-visible{outline:2px solid var(--lemon);outline-offset:2px;border-radius:6px;}

.wrap{max-width:1200px;margin:0 auto;padding:0 20px;width:100%;}
.sec{padding:52px 0;}
.sec-dark{background:var(--dark);color:#fff;}
.sec-head{max-width:760px;margin-bottom:36px;}
.sec-head h2{margin-bottom:12px;}
.sec-head p{color:var(--ink-2);font-size:16px;}
.sec-dark .sec-head p{color:#B9B4D6;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.04em;background:var(--brand-soft);color:var(--brand);border-radius:999px;padding:5px 12px;margin-bottom:14px;}
.sec-dark .eyebrow{background:rgba(108,75,255,.24);color:#CFC4FF;}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 22px;border-radius:12px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all var(--tr);text-decoration:none;}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);}
.btn-mint{background:var(--mint);color:#0D2B22;}
.btn-mint:hover{background:#10C296;color:#0D2B22;transform:translateY(-2px);}
.btn-pill{border-radius:999px;}
.btn-block{width:100%;}

.pill{display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:999px;font-size:12px;font-weight:600;line-height:1;}
.pill-cat{background:var(--brand-soft);color:var(--brand);}
.pill-state{background:rgba(22,214,166,.16);color:#0B7A5E;}
.pill-hot{background:var(--lemon);color:#4A3600;}

/* ============ header ============ */
.site-header{position:sticky;top:0;z-index:70;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.nav-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--ink);text-decoration:none;}
.brand:hover{color:var(--ink);}
.brand-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--brand),#8E6BFF);display:grid;place-items:center;flex:none;}
.brand-mark svg{width:18px;height:18px;}
.nav-links{display:none;align-items:center;gap:4px;}
.nav-links a{position:relative;padding:9px 14px;border-radius:10px;font-size:15px;font-weight:500;color:var(--ink-2);text-decoration:none;transition:all var(--tr);}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft);}
.nav-links a.active{color:var(--brand);font-weight:700;}
.nav-links a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:var(--brand);}
.nav-cta{display:none;}
.hamburger{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;}
.hamburger:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand);}

/* drawer */
.drawer-mask{position:fixed;inset:0;background:rgba(20,16,46,.48);opacity:0;visibility:hidden;transition:all var(--tr);z-index:90;}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:#fff;z-index:100;transform:translateX(102%);transition:transform 220ms ease;padding:18px 20px 28px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;}
.drawer.open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:pointer;color:var(--ink-2);font-size:18px;line-height:1;}
.drawer a.d-link{display:flex;align-items:center;justify-content:space-between;padding:14px 14px;border-radius:12px;color:var(--ink);font-size:16px;font-weight:600;border:1px solid transparent;}
.drawer a.d-link:hover{background:var(--brand-soft);color:var(--brand);}
.drawer a.d-link.active{background:var(--brand-soft);color:var(--brand);border-color:rgba(108,75,255,.28);}
.drawer .btn{margin-top:16px;}

/* ============ bottom tab (mobile) ============ */
.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:80;display:flex;background:rgba(255,255,255,.97);backdrop-filter:blur(10px);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom);}
.tabbar a{flex:1;height:58px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:10px;color:var(--ink-2);text-decoration:none;position:relative;}
.tabbar a svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.tabbar a.active{color:var(--brand);font-weight:700;}
.tabbar a.active::before{content:"";position:absolute;top:0;width:26px;height:3px;border-radius:0 0 3px 3px;background:var(--brand);}

/* ============ hero ============ */
.hero{position:relative;background:var(--dark);color:#fff;overflow:hidden;padding:56px 0 64px;}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle,rgba(255,255,255,.08) 1px,transparent 1px);background-size:22px 22px;pointer-events:none;}
.hero::after{content:"";position:absolute;right:-140px;bottom:-180px;width:420px;height:420px;border-radius:96px;background:rgba(108,75,255,.30);pointer-events:none;}
.hero .wrap{position:relative;z-index:2;}
.hero h1{color:#fff;margin-bottom:18px;}
.hero h1 em{font-style:normal;color:var(--mint);}
.hero-sub{color:#C7C2E4;font-size:17px;max-width:560px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:36px;}
.hero-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;border-top:1px solid rgba(255,255,255,.14);padding-top:24px;}
.hero-metrics .num{font-size:clamp(22px,3vw,30px);font-weight:800;color:var(--mint);line-height:1.2;font-variant-numeric:tabular-nums;}
.hero-metrics .lbl{font-size:13px;color:#A9A3CC;}
.hero-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;background:#1E1842;aspect-ratio:16/9;margin-top:34px;border:1px solid rgba(255,255,255,.10);}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-visual figcaption{position:absolute;left:16px;bottom:14px;background:rgba(20,16,46,.72);color:#E4E0FA;font-size:12px;padding:6px 12px;border-radius:999px;}

/* ============ value ============ */
.value-grid{display:grid;grid-template-columns:1fr;gap:0;}
.value-item{padding:22px 0;border-top:1px solid var(--line);display:flex;gap:16px;align-items:flex-start;}
.value-item:first-child{border-top:0;}
.value-ico{width:46px;height:46px;border-radius:13px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;flex:none;}
.value-ico svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.value-item h3{font-size:17px;margin-bottom:4px;}
.value-item p{color:var(--ink-2);font-size:15px;line-height:1.75;}

/* ============ feature ============ */
.seg{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;margin-bottom:28px;}
.seg button{flex:none;height:40px;padding:0 18px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink-2);font-size:14px;font-weight:600;cursor:pointer;transition:all var(--tr);}
.seg button:hover{border-color:var(--brand);color:var(--brand);}
.seg button.on{background:var(--brand);border-color:var(--brand);color:#fff;}
.feat-panel{display:none;}
.feat-panel.on{display:block;}
.feat-main{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-1);margin-bottom:22px;position:relative;overflow:hidden;}
.feat-main::before{content:"";position:absolute;left:0;top:0;width:4px;height:64px;background:var(--brand);border-radius:0 0 4px 0;}
.feat-main h3{font-size:22px;margin-bottom:10px;}
.feat-main p{color:var(--ink-2);margin-bottom:16px;}
.tagrow{display:flex;flex-wrap:wrap;gap:8px;}
.tagrow span{height:28px;display:inline-flex;align-items:center;padding:0 12px;border-radius:999px;background:var(--bg);border:1px solid var(--line);font-size:12px;color:var(--ink-2);}
.feat-sub{display:grid;grid-template-columns:1fr;gap:20px;}
.feat-sub article{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:22px;box-shadow:var(--sh-1);transition:all var(--tr);}
.feat-sub article:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.feat-sub h3{font-size:17px;margin-bottom:8px;}
.feat-sub p{color:var(--ink-2);font-size:15px;}

/* ============ scenes ============ */
.scene{display:grid;grid-template-columns:1fr;gap:22px;padding:34px 0;border-bottom:1px solid var(--line);}
.scene:last-child{border-bottom:0;padding-bottom:0;}
.scene-img{border-radius:var(--r-md);overflow:hidden;aspect-ratio:4/3;background:#EDEAF8;}
.scene-img img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease;}
.scene:hover .scene-img img{transform:scale(1.03);}
.scene h3{font-size:21px;margin-bottom:10px;}
.scene p{color:var(--ink-2);margin-bottom:14px;}
.check-list li{position:relative;padding-left:24px;color:var(--ink-2);font-size:15px;line-height:1.9;}
.check-list li::before{content:"";position:absolute;left:4px;top:12px;width:8px;height:8px;border-radius:50%;background:var(--brand);}

/* ============ cases ============ */
.case-wrap{position:relative;}
.case-track{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 2px 14px;-webkit-overflow-scrolling:touch;}
.case-track::-webkit-scrollbar{height:6px;}
.case-track::-webkit-scrollbar-thumb{background:#D6D0F0;border-radius:6px;}
.case-card{flex:0 0 288px;scroll-snap-align:start;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:22px;box-shadow:var(--sh-1);transition:all var(--tr);}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.case-card .num{font-size:30px;font-weight:800;color:var(--brand);line-height:1.15;margin:12px 0 6px;}
.case-card blockquote{font-size:15px;color:var(--ink-2);border-left:3px solid var(--brand-soft);padding-left:12px;margin:0 0 14px;line-height:1.8;}
.case-card .src{font-size:13px;color:var(--ink-2);}
.case-fade{position:absolute;top:0;bottom:14px;width:56px;pointer-events:none;}
.case-fade.l{left:0;background:linear-gradient(90deg,var(--bg),rgba(247,246,252,0));}
.case-fade.r{right:0;background:linear-gradient(270deg,var(--bg),rgba(247,246,252,0));}

/* ============ price ============ */
.price-grid{display:grid;grid-template-columns:1fr;gap:22px;align-items:stretch;}
.price-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px 24px;display:flex;flex-direction:column;box-shadow:var(--sh-1);transition:all var(--tr);}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.price-card.recommend{border:2px solid var(--brand);box-shadow:0 16px 40px rgba(108,75,255,.18);}
.price-name{font-size:18px;font-weight:700;margin-bottom:6px;}
.price-note{font-size:13px;color:var(--ink-2);margin-bottom:18px;}
.price-amount{display:flex;align-items:baseline;gap:6px;margin-bottom:20px;}
.price-amount b{font-size:34px;font-weight:800;color:var(--ink);line-height:1;}
.price-amount span{font-size:13px;color:var(--ink-2);}
.price-list{flex:1;margin-bottom:22px;}
.price-list li{position:relative;padding-left:22px;font-size:15px;color:var(--ink-2);line-height:2;}
.price-list li::before{content:"";position:absolute;left:2px;top:13px;width:7px;height:7px;border-radius:2px;background:var(--mint);}
.price-foot{font-size:13px;color:var(--ink-2);text-align:center;margin-top:22px;}

/* ============ news ============ */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.news-grid{display:grid;grid-template-columns:1fr;gap:22px;}
.news-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;display:flex;flex-direction:column;transition:all var(--tr);}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.news-thumb{display:block;aspect-ratio:16/9;background:#EFECFA;overflow:hidden;}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.news-body .pill{align-self:flex-start;margin-bottom:10px;}
.news-body h3{font-size:17px;line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body h3 a{color:var(--ink);}
.news-body h3 a:hover{color:var(--brand);}
.news-body p{color:var(--ink-2);font-size:14px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px;}
.news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:14px;font-size:13px;color:var(--ink-2);}
.news-meta a{font-weight:600;}
.empty-state{grid-column:1/-1;background:var(--card);border:1px dashed var(--line);border-radius:var(--r-md);padding:46px 24px;text-align:center;color:var(--ink-2);}
.empty-state strong{display:block;font-size:16px;color:var(--ink);margin-bottom:6px;font-weight:600;}

/* ============ faq ============ */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;position:relative;transition:border-color var(--tr);}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);transform:scaleY(0);transform-origin:top;transition:transform var(--tr);}
.faq-item.open::before{transform:scaleY(1);}
.faq-item.open{border-color:rgba(108,75,255,.34);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;background:none;border:0;text-align:left;font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;}
.faq-q:hover{color:var(--brand);}
.faq-ico{flex:none;width:22px;height:22px;position:relative;}
.faq-ico::before,.faq-ico::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform var(--tr);}
.faq-ico::before{left:0;top:10px;width:22px;height:2px;}
.faq-ico::after{left:10px;top:0;width:2px;height:22px;}
.faq-item.open .faq-ico::after{transform:rotate(90deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease;}
.faq-a-in{padding:0 22px 20px;color:var(--ink-2);font-size:15px;line-height:1.8;}

/* ============ cta form ============ */
.cta-box{background:var(--dark);color:#fff;border-radius:var(--r-lg);padding:32px 24px;position:relative;overflow:hidden;}
.cta-box::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle,rgba(255,255,255,.07) 1px,transparent 1px);background-size:20px 20px;pointer-events:none;}
.cta-box::after{content:"";position:absolute;right:-90px;bottom:-120px;width:280px;height:280px;border-radius:72px;background:rgba(22,214,166,.16);pointer-events:none;}
.cta-box > *{position:relative;z-index:2;}
.cta-box h2{color:#fff;margin-bottom:12px;}
.cta-box p{color:#BDB7DC;margin-bottom:22px;}
.cta-list li{position:relative;padding-left:24px;color:#CFCAE8;font-size:15px;line-height:2;}
.cta-list li::before{content:"";position:absolute;left:3px;top:13px;width:8px;height:8px;border-radius:50%;background:var(--mint);}
.form-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-md);padding:24px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:#CFCAE8;margin-bottom:7px;font-weight:600;}
.field input,.field textarea{width:100%;min-height:48px;border-radius:12px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08);color:#fff;padding:12px 14px;font-size:15px;font-family:inherit;transition:all var(--tr);}
.field textarea{min-height:96px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:#918BAF;}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--mint);box-shadow:0 0 0 3px rgba(22,214,166,.20);}
.field .err{display:none;font-size:12px;color:#FF8A8A;margin-top:6px;}
.field.invalid input,.field.invalid textarea{border-color:#FF8A8A;}
.field.invalid .err{display:block;}
.form-tip{font-size:12px;color:#918BAF;margin-top:12px;line-height:1.7;}

/* ============ footer ============ */
.site-footer{background:var(--dark);color:#C9C5E4;padding:52px 0 26px;margin-top:0;}
.foot-grid{display:grid;grid-template-columns:1fr;gap:28px;}
.foot-brand .brand{color:#fff;margin-bottom:12px;}
.foot-brand p{font-size:14px;color:#9C96BF;line-height:1.85;max-width:320px;}
.foot-col h4{font-size:15px;color:#fff;margin-bottom:14px;font-weight:700;}
.foot-col li{margin-bottom:9px;}
.foot-col a,.foot-col span{font-size:14px;color:#C9C5E4;}
.foot-col a:hover{color:var(--mint);}
.foot-bottom{margin-top:36px;border-top:1px solid rgba(255,255,255,.10);padding-top:20px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#8A84AC;}
.foot-acc{border-top:1px solid rgba(255,255,255,.10);}
.foot-acc summary{cursor:pointer;padding:16px 0;font-size:15px;color:#fff;font-weight:700;list-style:none;}
.foot-acc summary::-webkit-details-marker{display:none;}
.foot-acc ul{padding-bottom:12px;}

@media (min-width:640px){
  .wrap{padding:0 24px;}
  .sec{padding:64px 0;}
  .value-grid{grid-template-columns:repeat(2,1fr);}
  .value-item{padding:24px 20px;border-top:0;border-left:1px solid var(--line);flex-direction:column;gap:14px;}
  .value-item:first-child{border-left:0;padding-left:0;}
  .feat-sub{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .price-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:repeat(2,1fr);}
  .foot-acc{display:none;}
  .cta-box{padding:40px 32px;}
}
@media (min-width:1024px){
  body{padding-bottom:0;}
  .wrap{padding:0 32px;}
  .sec{padding:var(--sec) 0;}
  .nav-links{display:flex;}
  .nav-cta{display:inline-flex;}
  .hamburger{display:none;}
  .tabbar{display:none;}
  .hero{padding:76px 0 84px;}
  .hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
  .hero-visual{margin-top:0;aspect-ratio:5/4;}
  .value-grid{grid-template-columns:repeat(4,1fr);}
  .feat-layout{display:grid;grid-template-columns:5fr 7fr;gap:22px;align-items:start;}
  .feat-main{margin-bottom:0;}
  .feat-sub{grid-template-columns:1fr;gap:22px;}
  .scene{grid-template-columns:1fr 1fr;gap:44px;align-items:center;}
  .scene.reverse .scene-img{order:2;}
  .price-grid{grid-template-columns:repeat(3,1fr);align-items:center;}
  .price-card.recommend{transform:scale(1.03);}
  .price-card.recommend:hover{transform:scale(1.03) translateY(-4px);}
  .news-grid{grid-template-columns:repeat(3,1fr);}
  .cta-box{display:grid;grid-template-columns:1fr 1fr;gap:44px;padding:52px 44px;}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
}
@media (min-width:1200px){
  .wrap{max-width:1200px;}
}

/* roulang page: article */
:root{
  --primary:#6C4BFF;
  --primary-dark:#5638E8;
  --primary-soft:#EFEBFF;
  --primary-tint:#F3F0FF;
  --secondary:#16D6A6;
  --accent:#FFC93C;
  --dark:#14102E;
  --dark-2:#1E1842;
  --light:#F7F6FC;
  --card:#FFFFFF;
  --text:#1B1830;
  --text-soft:#2A2643;
  --muted:#625E7A;
  --line:#E8E6F2;
  --radius-lg:24px;
  --radius:16px;
  --radius-sm:12px;
  --shadow-sm:0 6px 20px rgba(20,16,46,.06);
  --shadow-lg:0 14px 34px rgba(20,16,46,.14);
  --ease:200ms ease;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--light);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color var(--ease),background var(--ease);}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.3;letter-spacing:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
table{border-collapse:collapse;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.wrap{padding:0 32px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:16px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--dark);white-space:nowrap;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,var(--primary),#8C6BFF);
  display:grid;place-items:center;box-shadow:0 8px 18px rgba(108,75,255,.30);flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px;display:block;}
.nav-links{display:none;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
  position:relative;padding:9px 14px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--muted);
}
.nav-links a:hover{color:var(--primary);background:var(--primary-soft);}
.nav-links a.active{color:var(--text);font-weight:700;}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--primary);
}
.header-cta{display:none;}
.nav-toggle{
  margin-left:auto;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--text);display:grid;place-items:center;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary);}
@media (min-width:1024px){
  .nav-links{display:flex;}
  .header-cta{display:inline-flex;}
  .nav-toggle{display:none;}
}

/* mobile drawer */
.drawer{
  position:fixed;inset:68px 0 0 0;z-index:75;background:rgba(20,16,46,.45);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
}
.drawer.open{opacity:1;visibility:visible;}
.drawer-panel{
  background:#fff;border-bottom-left-radius:var(--radius-lg);border-bottom-right-radius:var(--radius-lg);
  padding:18px 20px 24px;box-shadow:var(--shadow-lg);transform:translateY(-12px);transition:transform var(--ease);
}
.drawer.open .drawer-panel{transform:translateY(0);}
.drawer-panel a{
  display:block;padding:14px 12px;border-radius:12px;font-size:16px;font-weight:600;color:var(--text);
}
.drawer-panel a:hover{background:var(--primary-soft);color:var(--primary);}
.drawer-panel .btn{width:100%;margin-top:12px;}
@media (min-width:1024px){.drawer{display:none;}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px rgba(108,75,255,.28);}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);color:#fff;}
.btn-ghost{border-color:var(--primary);color:var(--primary);background:#fff;}
.btn-ghost:hover{background:var(--primary-soft);transform:translateY(-2px);}
.btn-mint{background:var(--secondary);color:#0C2A22;}
.btn-mint:hover{background:#0FC394;transform:translateY(-2px);}
.btn-quiet{color:var(--primary);background:transparent;padding:0 6px;height:auto;}
.btn-quiet:hover{color:var(--primary-dark);}

/* ---------- badges / tags ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em;}
.badge-cat{background:var(--primary-soft);color:var(--primary);}
.badge-mint{background:rgba(22,214,166,.16);color:#0B8F6C;}
.badge-accent{background:var(--accent);color:#3A2B00;}

/* ---------- article hero ---------- */
.article-hero{position:relative;background:var(--dark);color:#fff;overflow:hidden;padding:34px 0 56px;}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;opacity:.3;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.09) 1px,transparent 1px);
  background-size:18px 18px;opacity:.7;
}
.article-hero .glow{
  position:absolute;right:-90px;bottom:-140px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,rgba(108,75,255,.55),rgba(108,75,255,0) 70%);
}
.article-hero .wrap{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.66);margin-bottom:18px;}
.breadcrumb a{color:rgba(255,255,255,.78);}
.breadcrumb a:hover{color:var(--secondary);}
.breadcrumb .sep{color:rgba(255,255,255,.36);}
.breadcrumb .current{color:#fff;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-title{
  font-size:clamp(30px,4.2vw,44px);line-height:1.28;font-weight:800;color:#fff;
  max-width:920px;overflow-wrap:break-word;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:20px;font-size:13px;color:rgba(255,255,255,.72);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.4);}
.article-meta .badge-cat{background:rgba(255,255,255,.14);color:#fff;}

/* ---------- article layout ---------- */
.article-layout{display:grid;grid-template-columns:1fr;gap:28px;padding:40px 0 0;}
@media (min-width:1024px){
  .article-layout{grid-template-columns:232px minmax(0,1fr);gap:48px;padding:56px 0 0;align-items:start;}
}
.toc-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 18px 20px;box-shadow:var(--shadow-sm);
}
@media (min-width:1024px){
  .toc-card{position:sticky;top:92px;}
}
.toc-head{display:flex;align-items:center;justify-content:space-between;gap:10px;}
.toc-title{font-size:14px;font-weight:700;color:var(--text);letter-spacing:.04em;}
.toc-toggle{
  border:1px solid var(--line);background:#fff;border-radius:10px;height:34px;padding:0 12px;
  font-size:13px;color:var(--muted);cursor:pointer;
}
.toc-toggle:hover{border-color:var(--primary);color:var(--primary);}
@media (min-width:1024px){.toc-toggle{display:none;}}
.toc-list{margin-top:12px;display:none;}
.toc-list.open{display:block;}
@media (min-width:1024px){.toc-list{display:block;}}
.toc-list li{margin-bottom:2px;}
.toc-list a{
  display:block;padding:7px 10px;border-radius:9px;font-size:13px;line-height:1.5;color:var(--muted);
  border-left:2px solid transparent;
}
.toc-list a:hover{background:var(--primary-soft);color:var(--primary);border-left-color:var(--primary);}
.toc-list a.lv3{padding-left:22px;font-size:12.5px;}
.toc-empty{font-size:13px;color:var(--muted);margin-top:10px;}

.article-main{min-width:0;}
.article-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px 22px 34px;font-size:17px;line-height:1.9;color:var(--text-soft);
  box-shadow:var(--shadow-sm);overflow-wrap:break-word;
}
@media (min-width:768px){.article-body{padding:40px 40px 46px;}}
.article-body p{margin:0 0 18px;}
.article-body h2{
  position:relative;font-size:23px;line-height:1.4;font-weight:700;color:var(--text);
  margin:36px 0 16px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:4px;border-radius:4px;background:var(--primary);
}
.article-body h3{font-size:19px;line-height:1.45;font-weight:600;color:var(--text);margin:26px 0 12px;}
.article-body h2:first-child,.article-body h3:first-child{margin-top:0;}
.article-body img{border-radius:12px;margin:22px auto;box-shadow:var(--shadow-sm);height:auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:10px;}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;background:var(--primary-tint);
  border-left:3px solid var(--primary);border-radius:0 12px 12px 0;color:#3A3358;font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul{margin:0 0 18px;}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px;}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--primary);
}
.article-body ol{margin:0 0 18px;padding-left:24px;list-style:decimal;}
.article-body ol li{margin-bottom:10px;}
.article-body table{width:100%;margin:22px 0;font-size:15px;border-top:2px solid var(--primary);}
.article-body table th{background:#F7F6FC;text-align:left;font-weight:600;color:var(--text);}
.article-body table th,.article-body table td{padding:12px 14px;border-bottom:1px solid var(--line);}
.article-body table tbody tr:nth-child(odd){background:#FBFAFF;}
.article-body code{background:#F1EFFA;color:#4A3FA8;padding:2px 6px;border-radius:6px;font-size:.92em;}
.article-body pre{background:#F1EFFA;border-radius:12px;padding:16px;overflow:auto;margin:0 0 18px;}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(108,75,255,.35);}
.article-body a:hover{color:var(--primary-dark);border-bottom-color:var(--primary-dark);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:30px 0;}

.article-empty{
  background:#fff;border:1px dashed var(--line);border-radius:var(--radius-lg);
  padding:56px 24px;text-align:center;box-shadow:var(--shadow-sm);
}
.article-empty .empty-icon{
  width:64px;height:64px;border-radius:18px;background:var(--primary-soft);color:var(--primary);
  display:grid;place-items:center;margin:0 auto 18px;font-size:24px;
}
.article-empty h2{font-size:22px;margin-bottom:10px;}
.article-empty p{color:var(--muted);font-size:15px;margin-bottom:22px;}

.article-foot{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:26px;}

/* ---------- related ---------- */
.related{padding:76px 0 0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:28px;}
.section-head h2{font-size:clamp(22px,2.6vw,30px);}
.section-head p{font-size:14px;color:var(--muted);margin-top:8px;}
.grid-3{display:grid;grid-template-columns:1fr;gap:22px;}
@media (min-width:640px){.grid-3{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.grid-3{grid-template-columns:repeat(3,1fr);}}
.card{
  position:relative;display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:transform var(--ease),box-shadow var(--ease);
}
.card::before{
  content:"";position:absolute;left:0;top:0;width:4px;height:44px;border-radius:0 0 6px 0;background:var(--primary);z-index:3;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.card-cover{position:relative;aspect-ratio:16/9;background:#EDEAF9;overflow:hidden;}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform 260ms ease;}
.card:hover .card-cover img{transform:scale(1.04);}
.card-cover::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(20,16,46,.05) 1px,transparent 1px);background-size:14px 14px;
}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:17px;line-height:1.5;font-weight:600;color:var(--text);}
.card:hover .card-body h3{color:var(--primary);}
.card-body p{
  font-size:14px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--muted);}
.card-foot .more{color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;}

/* ---------- cta ---------- */
.cta{position:relative;margin-top:88px;background:var(--dark);color:#fff;overflow:hidden;padding:60px 0 64px;}
.cta::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.08) 1px,transparent 1px);background-size:20px 20px;
}
.cta .glow{
  position:absolute;right:-120px;bottom:-160px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle at 35% 35%,rgba(22,214,166,.34),rgba(22,214,166,0) 70%);
}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:36px;}
@media (min-width:1024px){.cta-grid{grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:56px;align-items:start;}}
.cta-copy .badge-accent{margin-bottom:16px;}
.cta-copy h2{font-size:clamp(24px,3vw,34px);color:#fff;line-height:1.32;}
.cta-copy p{margin-top:16px;color:rgba(255,255,255,.72);font-size:15px;line-height:1.85;max-width:460px;}
.cta-points{margin-top:24px;display:grid;gap:12px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.86);}
.cta-points i{color:var(--secondary);margin-top:5px;}
.cta-form{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-lg);padding:24px 22px 26px;
}
@media (min-width:768px){.cta-form{padding:30px 30px 32px;}}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;border-radius:12px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.08);color:#fff;padding:13px 14px;font-size:15px;line-height:1.6;
  transition:border-color var(--ease),background var(--ease);
}
.field textarea{resize:vertical;min-height:96px;}
.field input::placeholder,.field textarea::placeholder{color:rgba(255,255,255,.45);}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--secondary);background:rgba(255,255,255,.12);
  box-shadow:0 0 0 3px rgba(22,214,166,.2);
}
.cta-form .btn{width:100%;}
.form-note{margin-top:12px;font-size:13px;color:var(--secondary);min-height:20px;}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#C9C5E4;padding:64px 0 26px;border-top:1px solid rgba(255,255,255,.06);}
.foot-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:1024px){.foot-grid{grid-template-columns:minmax(0,4fr) repeat(3,minmax(0,2.4fr));gap:40px;}}
.foot-brand .brand{color:#fff;margin-bottom:14px;}
.foot-brand p{font-size:14px;line-height:1.85;color:#9E99C0;max-width:320px;}
.foot-col h4{font-size:15px;color:#fff;margin-bottom:14px;font-weight:600;}
.foot-col ul li{margin-bottom:10px;font-size:14px;}
.foot-col ul li a{color:#C9C5E4;}
.foot-col ul li a:hover{color:var(--secondary);}
.foot-col ul li span{color:#9E99C0;}
.foot-acc{margin-top:28px;display:block;}
.foot-acc details{border-top:1px solid rgba(255,255,255,.1);padding:14px 0;}
.foot-acc summary{font-size:15px;color:#fff;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;}
.foot-acc summary::-webkit-details-marker{display:none;}
.foot-acc summary::after{content:"+";color:var(--secondary);font-size:18px;}
.foot-acc details[open] summary::after{content:"–";}
.foot-acc ul{margin-top:12px;}
.foot-acc ul li{margin-bottom:8px;font-size:14px;}
.foot-acc ul li a{color:#C9C5E4;}
.foot-acc ul li a:hover{color:var(--secondary);}
.foot-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:#8C87B0;
}
@media (min-width:1024px){
  .foot-acc{display:none;}
}
@media (max-width:1023px){
  .foot-grid .foot-col{display:none;}
}

/* ---------- mobile tabbar ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  display:grid;grid-template-columns:repeat(3,1fr);
  height:58px;background:rgba(255,255,255,.96);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.tabbar a{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:10.5px;color:var(--muted);
}
.tabbar a i{font-size:17px;}
.tabbar a.active{color:var(--primary);font-weight:600;}
.tabbar a.active::before{
  content:"";position:absolute;top:0;width:26px;height:3px;border-radius:0 0 3px 3px;background:var(--primary);
}
@media (min-width:1024px){.tabbar{display:none;}}
@media (max-width:1023px){body{padding-bottom:72px;}}

/* roulang page: category1 */
:root{
  --brand:#6C4BFF;
  --brand-deep:#5538E0;
  --brand-soft:#EFEBFF;
  --mint:#16D6A6;
  --yellow:#FFC93C;
  --ink:#14102E;
  --ink-2:#1E1842;
  --bg:#F7F6FC;
  --card:#FFFFFF;
  --text:#1B1830;
  --muted:#625E7A;
  --line:#E8E6F2;
  --r-lg:24px;
  --r:16px;
  --r-sm:12px;
  --shadow:0 6px 20px rgba(20,16,46,.06);
  --shadow-h:0 14px 34px rgba(20,16,46,.14);
  --ease:200ms ease;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease),transform var(--ease);}
button,input,textarea,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--text);}
h1{font-size:clamp(30px,4.4vw,48px);line-height:1.25;font-weight:800;}
h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:700;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
p{margin:0;}
:focus-visible{outline:2px solid var(--yellow);outline-offset:2px;border-radius:6px;}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.wrap{padding:0 32px;}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:all var(--ease);white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(108,75,255,.24);}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:0 14px 28px rgba(108,75,255,.32);}
.btn-ghost{border-color:var(--brand);color:var(--brand);background:#fff;}
.btn-ghost:hover{background:var(--brand-soft);transform:translateY(-2px);}
.btn-mint{background:var(--mint);color:var(--ink);}
.btn-mint:hover{background:#0FC294;color:var(--ink);transform:translateY(-2px);box-shadow:0 14px 28px rgba(22,214,166,.3);}
.btn-outline-light{border-color:rgba(255,255,255,.5);color:#fff;background:rgba(255,255,255,.06);}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-2px);}
.btn-pill{border-radius:999px;}
.btn-block{width:100%;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:16px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--ink);letter-spacing:0;}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:12px;
  background:linear-gradient(135deg,var(--brand),#8E72FF);
  display:grid;place-items:center;
}
.brand-mark svg{width:24px;height:24px;}
.nav-links{display:none;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{position:relative;padding:10px 14px;font-size:15px;color:var(--muted);border-radius:10px;}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft);}
.nav-links a.active{color:var(--ink);font-weight:700;}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;
}
.header-cta{margin-left:12px;min-height:42px;padding:0 18px;font-size:14px;display:none;}
.menu-toggle{
  margin-left:auto;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;display:grid;place-items:center;cursor:pointer;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}
@media (min-width:1024px){
  .nav-links{display:flex;}
  .header-cta{display:inline-flex;}
  .menu-toggle{display:none;}
}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:12px 20px 20px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:block;padding:14px 4px;font-size:16px;color:var(--muted);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a:last-of-type{border-bottom:0;}
.mobile-drawer a.active{color:var(--brand);font-weight:700;}
@media (min-width:1024px){.mobile-drawer{display:none !important;}}

/* ---------- mobile tabbar ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  display:flex;height:58px;background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -6px 20px rgba(20,16,46,.06);
}
.tabbar a{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  font-size:10px;color:var(--muted);position:relative;min-height:44px;
}
.tabbar a svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;}
.tabbar a.active{color:var(--brand);font-weight:600;}
.tabbar a.active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:3px;border-radius:0 0 3px 3px;background:var(--brand);
}
@media (min-width:1024px){.tabbar{display:none;}}
@media (max-width:1023.98px){body{padding-bottom:72px;}}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--ink);color:#fff;padding:56px 0 60px;}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.34;
}
.hero-dots{
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:22px 22px;opacity:.6;
}
.hero-shape{
  position:absolute;right:-90px;bottom:-140px;width:340px;height:340px;border-radius:140px;
  background:rgba(108,75,255,.38);filter:blur(2px);
}
.hero-inner{position:relative;z-index:2;display:block;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:#B9B4DA;margin-bottom:20px;}
.crumb a:hover{color:var(--mint);}
.crumb span{color:#8F8AB0;}
.page-hero h1{color:#fff;max-width:16em;}
.hero-lead{margin-top:18px;max-width:640px;font-size:17px;color:#CFCBE8;line-height:1.9;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-facts{
  display:grid;grid-template-columns:1fr;gap:18px;margin-top:40px;
  border-top:1px solid rgba(255,255,255,.14);padding-top:26px;
}
.hero-facts li{display:flex;flex-direction:column;gap:4px;}
.hero-facts strong{font-size:22px;font-weight:800;color:#fff;}
.hero-facts span{font-size:13px;color:#A9A4C9;}
@media (min-width:768px){
  .hero-facts{grid-template-columns:repeat(3,1fr);gap:24px;}
}
@media (min-width:1024px){
  .page-hero{padding:72px 0 78px;}
  .hero-inner{display:grid;grid-template-columns:minmax(0,1fr);}
}

/* ---------- sections ---------- */
.section{padding:52px 0;}
@media (min-width:1024px){.section{padding:88px 0;}}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:760px;margin-bottom:32px;}
@media (min-width:1024px){.sec-head{margin-bottom:44px;}}
.eyebrow{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:700;
  letter-spacing:.04em;margin-bottom:14px;
}
.sec-sub{margin-top:14px;color:var(--muted);font-size:16px;}

/* ---------- tag strip ---------- */
.tagbar{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:18px 22px;box-shadow:var(--shadow);
}
.tagbar-label{font-size:14px;font-weight:700;color:var(--ink);}
.pills{display:flex;flex-wrap:wrap;gap:10px;}
.pill{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  background:var(--bg);border:1px solid var(--line);color:var(--muted);font-size:13px;
  transition:all var(--ease);
}
.pill.is-on{background:var(--brand-soft);border-color:rgba(108,75,255,.28);color:var(--brand);font-weight:700;}
.pill:hover{border-color:var(--brand);color:var(--brand);}

/* ---------- cards ---------- */
.card{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r);padding:24px;box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  overflow:hidden;height:100%;
}
.card::before{
  content:"";position:absolute;left:0;top:0;width:44px;height:4px;
  background:var(--brand);border-radius:0 0 4px 0;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-h);border-color:#DCD7F5;}
.card:hover h3{color:var(--brand);}
.card h3{margin-bottom:10px;transition:color var(--ease);}
.card p{color:var(--muted);font-size:15px;}
.thumb{border-radius:var(--r-sm);overflow:hidden;background:var(--brand-soft);margin-bottom:18px;}
.thumb img{width:100%;height:100%;object-fit:cover;}
.ratio-16-9{aspect-ratio:16 / 9;}
.ratio-4-3{aspect-ratio:4 / 3;}
.stack{display:grid;gap:20px;}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:700;
}
.badge-brand{background:var(--brand-soft);color:var(--brand);}
.badge-mint{background:rgba(22,214,166,.16);color:#0B8E6E;}
.badge-yellow{background:var(--yellow);color:var(--ink);}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}
.tick-list{margin-top:16px;display:grid;gap:10px;}
.tick-list li{position:relative;padding-left:22px;font-size:14px;color:var(--muted);line-height:1.7;}
.tick-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;
  background:var(--brand);
}

/* ---------- scenes ---------- */
.scenes{display:grid;gap:44px;}
.scene{display:grid;gap:24px;align-items:center;padding-bottom:40px;border-bottom:1px solid var(--line);}
.scene:last-child{border-bottom:0;padding-bottom:0;}
.scene-media{border-radius:var(--r);overflow:hidden;background:var(--brand-soft);box-shadow:var(--shadow);}
.scene-media img{width:100%;aspect-ratio:4 / 3;object-fit:cover;}
.scene-body h3{font-size:22px;margin-bottom:12px;}
.scene-body p{color:var(--muted);font-size:15px;}
@media (min-width:1024px){
  .scene{grid-template-columns:1fr 1fr;gap:48px;}
  .scene.rev .scene-media{order:2;}
}

/* ---------- flow ---------- */
.flow{display:grid;gap:18px;}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:22px;box-shadow:var(--shadow);transition:transform var(--ease),box-shadow var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-h);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;
  border-radius:var(--r-sm);background:var(--ink);color:#fff;font-weight:800;font-size:15px;
  margin-bottom:14px;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{color:var(--muted);font-size:14px;}
@media (min-width:640px){.flow{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.flow{grid-template-columns:repeat(5,1fr);}}

/* ---------- proof ---------- */
.proof-grid{display:grid;gap:20px;}
@media (min-width:768px){.proof-grid{grid-template-columns:repeat(3,1fr);}}
.stat{
  background:var(--ink);color:#fff;border-radius:var(--r);padding:26px;
  position:relative;overflow:hidden;
}
.stat::after{
  content:"";position:absolute;right:-40px;bottom:-40px;width:120px;height:120px;
  border-radius:48px;background:rgba(22,214,166,.22);
}
.stat strong{display:block;font-size:34px;font-weight:800;line-height:1.2;}
.stat span{display:block;margin-top:8px;font-size:13px;color:#A9A4C9;}
.track-wrap{position:relative;margin-top:28px;}
.track-wrap::before,.track-wrap::after{
  content:"";position:absolute;top:0;bottom:12px;width:44px;pointer-events:none;z-index:2;
}
.track-wrap::before{left:0;background:linear-gradient(90deg,var(--bg),rgba(247,246,252,0));}
.track-wrap::after{right:0;background:linear-gradient(270deg,var(--bg),rgba(247,246,252,0));}
.quote-track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 4px 16px;-webkit-overflow-scrolling:touch;
}
.quote-card{
  flex:0 0 86%;max-width:360px;scroll-snap-align:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:22px;box-shadow:var(--shadow);
}
@media (min-width:768px){.quote-card{flex:0 0 44%;}}
@media (min-width:1024px){.quote-card{flex:0 0 31%;}}
.quote-card p{margin:14px 0 16px;font-size:15px;color:var(--text);line-height:1.85;}
.quote-src{font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:12px;}

/* ---------- faq ---------- */
.faq{display:grid;gap:12px;max-width:900px;}
.faq details{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease);
}
.faq details[open]{border-left:3px solid var(--brand);box-shadow:var(--shadow);}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;cursor:pointer;list-style:none;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary .ic{
  flex:0 0 24px;width:24px;height:24px;border-radius:8px;background:var(--brand-soft);
  color:var(--brand);display:grid;place-items:center;font-size:16px;line-height:1;
  transition:transform var(--ease);
}
.faq details[open] summary .ic{transform:rotate(45deg);}
.faq .ans{padding:0 22px 20px;font-size:15px;color:var(--muted);line-height:1.85;}

/* ---------- cta + form ---------- */
.cta-band{background:var(--ink);color:#fff;position:relative;overflow:hidden;padding:56px 0;}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.12) 1px,transparent 1px);
  background-size:24px 24px;opacity:.5;
}
.cta-band .cta-shape{
  position:absolute;left:-100px;top:-120px;width:300px;height:300px;border-radius:120px;
  background:rgba(108,75,255,.3);
}
.cta-inner{position:relative;z-index:2;display:grid;gap:32px;}
@media (min-width:1024px){
  .cta-inner{grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
  .cta-band{padding:80px 0;}
}
.cta-band h2{color:#fff;}
.cta-band p{color:#C4BFDF;margin-top:16px;font-size:16px;max-width:520px;}
.cta-points{margin-top:26px;display:grid;gap:12px;}
.cta-points li{position:relative;padding-left:24px;font-size:14px;color:#CFCBE8;}
.cta-points li::before{
  content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:3px;background:var(--mint);
}
.form-card{
  background:#1E1842;border:1px solid rgba(255,255,255,.12);border-radius:var(--r-lg);
  padding:26px;
}
.form-grid{display:grid;gap:16px;}
.field{display:grid;gap:8px;}
.field label{font-size:13px;font-weight:600;color:#D6D2EE;}
.field input,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);
  color:#fff;font-size:15px;transition:border-color var(--ease),background-color var(--ease);
}
.field textarea{min-height:104px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:#8F8AB0;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--mint);background:rgba(255,255,255,.1);
  box-shadow:0 0 0 3px rgba(22,214,166,.18);
}
.form-note{font-size:12px;color:#8F8AB0;margin-top:12px;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#C9C5E4;padding:56px 0 26px;}
.foot-grid{display:grid;gap:30px;}
@media (min-width:768px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;}}
.foot-brand .brand{color:#fff;}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:#A9A4C9;max-width:320px;}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:14px;font-weight:600;}
.foot-col ul{display:grid;gap:10px;font-size:14px;}
.foot-col a:hover{color:var(--mint);}
.foot-col span{color:#A9A4C9;}
.foot-acc{display:grid;gap:10px;margin-top:28px;}
.foot-acc details{border:1px solid rgba(255,255,255,.12);border-radius:var(--r-sm);padding:12px 16px;}
.foot-acc summary{color:#fff;font-size:14px;font-weight:600;cursor:pointer;list-style:none;}
.foot-acc summary::-webkit-details-marker{display:none;}
.foot-acc ul{display:grid;gap:10px;margin-top:12px;font-size:14px;}
@media (min-width:1024px){.foot-acc{display:none;}}
.foot-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:20px;
  font-size:13px;color:#8F8AB0;
}

/* roulang page: category2 */
:root{
  --brand:#6C4BFF;
  --brand-2:#8F6BFF;
  --brand-soft:#EFEBFF;
  --brand-deep:#4E32D9;
  --mint:#16D6A6;
  --mint-soft:#DFF9F1;
  --lemon:#FFC93C;
  --ink:#14102E;
  --ink-2:#1E1842;
  --bg:#F7F6FC;
  --card:#FFFFFF;
  --text:#1B1830;
  --muted:#625E7A;
  --line:#E8E6F2;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --sh:0 6px 20px rgba(20,16,46,.06);
  --sh-h:0 14px 34px rgba(20,16,46,.14);
  --t:200ms ease;
  --wrap:1200px;
}

*,*::before,*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p{margin:0;}

h1{
  font-size:clamp(30px,4.4vw,48px);
  line-height:1.25;
  font-weight:800;
}
h2{
  font-size:clamp(22px,2.6vw,32px);
  line-height:1.3;
  font-weight:700;
}
h3{
  font-size:20px;
  line-height:1.4;
  font-weight:600;
}
p{line-height:1.85;}

::selection{background:var(--brand);color:#fff;}

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

.section{padding:88px 0;}
.section.tight{padding:64px 0;}

.sec-head{max-width:720px;margin-bottom:44px;}
.sec-head h2{margin-bottom:14px;color:var(--ink);}
.sec-head p{color:var(--muted);font-size:16px;}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 13px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12px;
  font-weight:700;
  letter-spacing:.04em;
  margin-bottom:16px;
}

/* ---------------- 按钮 ---------------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:11px 24px;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background var(--t),color var(--t),transform var(--t),box-shadow var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(108,75,255,.28);}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:0 12px 26px rgba(108,75,255,.34);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);}
.btn-mint{background:var(--mint);color:#08321F;}
.btn-mint:hover{background:#12C296;transform:translateY(-2px);}
.btn-hero{border-radius:999px;padding:13px 30px;}
.btn:focus-visible,
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
summary:focus-visible{
  outline:2px solid var(--lemon);
  outline-offset:2px;
  border-radius:8px;
}

/* ---------------- 顶部导航 ---------------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:68px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:800;
  color:var(--ink);
  letter-spacing:0;
}
.brand-mark{
  width:34px;
  height:34px;
  border-radius:11px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  display:grid;
  place-items:center;
  flex:0 0 auto;
  box-shadow:0 6px 16px rgba(108,75,255,.32);
}
.brand-mark svg{width:22px;height:22px;display:block;}

.nav-links{
  display:flex;
  align-items:center;
  gap:30px;
  font-size:15px;
  font-weight:600;
  color:var(--muted);
}
.nav-links a{
  position:relative;
  padding:6px 0;
  transition:color var(--t);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--t);
}
.nav-links a:hover{color:var(--brand);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--ink);}
.nav-links a.active::after{transform:scaleX(1);}

.nav-right{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  background:#fff;
  border-radius:12px;
  color:var(--ink);
  cursor:pointer;
  align-items:center;
  justify-content:center;
  font-size:18px;
}

/* 移动端抽屉 */
.drawer{
  position:fixed;
  inset:0 0 0 auto;
  width:min(84vw,340px);
  background:#fff;
  z-index:120;
  transform:translateX(102%);
  transition:transform 240ms ease;
  padding:24px;
  display:flex;
  flex-direction:column;
  gap:8px;
  box-shadow:-18px 0 44px rgba(20,16,46,.18);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);font-size:20px;cursor:pointer;
}
.drawer a.drawer-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 16px;
  border-radius:14px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  background:var(--bg);
  transition:background var(--t),color var(--t);
}
.drawer a.drawer-link:hover{background:var(--brand-soft);color:var(--brand);}
.drawer a.drawer-link.active{background:var(--brand);color:#fff;}
.drawer .btn{margin-top:18px;width:100%;}
.scrim{
  position:fixed;
  inset:0;
  background:rgba(20,16,46,.45);
  opacity:0;
  pointer-events:none;
  transition:opacity 240ms ease;
  z-index:110;
}
.scrim.is-open{opacity:1;pointer-events:auto;}

/* ---------------- 面包屑 ---------------- */
.crumb{
  font-size:13px;
  color:rgba(255,255,255,.72);
  margin-bottom:18px;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
}
.crumb a{color:rgba(255,255,255,.72);transition:color var(--t);}
.crumb a:hover{color:var(--mint);}
.crumb span.sep{opacity:.5;}

/* ---------------- 页面横幅 ---------------- */
.page-hero{
  position:relative;
  background:#14102E url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:#fff;
  padding:84px 0 72px;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(rgba(255,255,255,.08) 1px, transparent 1px) 0 0/18px 18px,
    linear-gradient(104deg, rgba(20,16,46,.95) 0%, rgba(20,16,46,.82) 52%, rgba(20,16,46,.58) 100%);
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-120px;
  bottom:-160px;
  width:420px;
  height:420px;
  border-radius:50%;
  background:linear-gradient(140deg,rgba(108,75,255,.55),rgba(22,214,166,.28));
  filter:blur(6px);
  z-index:1;
}
.page-hero .wrap{position:relative;z-index:3;}
.page-hero h1{max-width:820px;color:#fff;}
.page-hero .lead{
  max-width:680px;
  margin-top:18px;
  color:rgba(255,255,255,.82);
  font-size:17px;
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.hero-tags span{
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.2);
  color:#fff;
  backdrop-filter:blur(4px);
}
.hero-metrics{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
  margin-top:40px;
  padding-top:28px;
  border-top:1px solid rgba(255,255,255,.16);
  max-width:760px;
}
.hero-metrics .num{
  font-size:28px;
  font-weight:800;
  color:var(--mint);
  line-height:1.2;
}
.hero-metrics .lbl{
  font-size:13px;
  color:rgba(255,255,255,.7);
  margin-top:4px;
}

/* ---------------- 锚点目录 + 内容流 ---------------- */
.anchor-col{
  position:sticky;
  top:92px;
}
.anchor-nav{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:20px;
  box-shadow:var(--sh);
}
.anchor-nav h3{
  font-size:14px;
  font-weight:700;
  color:var(--muted);
  margin-bottom:12px;
  letter-spacing:.04em;
}
.anchor-nav ol{
  display:flex;
  flex-direction:column;
  gap:4px;
  counter-reset:anc;
}
.anchor-nav a{
  display:flex;
  align-items:center;
  gap:10px;
  padding:9px 10px;
  border-radius:10px;
  font-size:14px;
  font-weight:600;
  color:var(--muted);
  transition:background var(--t),color var(--t);
}
.anchor-nav a::before{
  counter-increment:anc;
  content:counter(anc,decimal-leading-zero);
  font-size:12px;
  font-weight:700;
  color:var(--brand);
  opacity:.7;
}
.anchor-nav a:hover{background:var(--brand-soft);color:var(--brand);}
.anchor-nav a.is-current{background:var(--brand);color:#fff;}
.anchor-nav a.is-current::before{color:rgba(255,255,255,.8);}
.anchor-cta{
  margin-top:18px;
  padding-top:18px;
  border-top:1px dashed var(--line);
}
.anchor-cta .btn{width:100%;}

.flow-block{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:34px;
  box-shadow:var(--sh);
  margin-bottom:24px;
  scroll-margin-top:96px;
  transition:box-shadow var(--t),border-color var(--t);
}
.flow-block:hover{box-shadow:var(--sh-h);border-color:#DED9F7;}
.flow-block .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.flow-block h2{margin-bottom:14px;color:var(--ink);}
.flow-block p{color:var(--muted);margin-bottom:14px;}
.flow-block p:last-of-type{margin-bottom:0;}

.media{
  position:relative;
  width:100%;
  aspect-ratio:16/9;
  border-radius:var(--r-sm);
  overflow:hidden;
  background:
    radial-gradient(rgba(108,75,255,.14) 1px, transparent 1px) 0 0/14px 14px,
    linear-gradient(135deg,#EFECFB,#F7F6FC);
  border:1px solid var(--line);
}
.media.ratio-4-3{aspect-ratio:4/3;}
.media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 420ms ease;
}
.flow-block:hover .media img{transform:scale(1.03);}

.point-list{
  margin-top:20px;
  display:grid;
  gap:10px;
}
.point-list li{
  position:relative;
  padding-left:26px;
  font-size:15px;
  color:var(--text);
}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:11px;
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 0 4px rgba(108,75,255,.12);
}

.tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 11px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  background:var(--brand-soft);
  color:var(--brand);
  white-space:nowrap;
}
.tag.mint{background:var(--mint-soft);color:#0B7A5B;}
.tag.lemon{background:#FFF4D6;color:#8A6100;}

/* ---------------- 流程时间线 ---------------- */
.steps{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:18px;
  counter-reset:step;
}
.step{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px 22px;
  box-shadow:var(--sh);
  transition:transform var(--t),box-shadow var(--t);
}
.step::before{
  counter-increment:step;
  content:counter(step,decimal-leading-zero);
  display:block;
  font-size:13px;
  font-weight:800;
  color:var(--brand);
  letter-spacing:.06em;
  margin-bottom:12px;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-h);}
.step h3{font-size:17px;margin-bottom:8px;color:var(--ink);}
.step p{font-size:14px;color:var(--muted);line-height:1.75;}

/* ---------------- 对比表 ---------------- */
.cmp-wrap{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh);
}
table.cmp{
  width:100%;
  border-collapse:collapse;
  font-size:15px;
}
table.cmp thead th{
  background:linear-gradient(180deg,#F5F2FF,#EFEBFF);
  color:var(--ink);
  font-weight:700;
  text-align:left;
  padding:16px 22px;
  font-size:14px;
  border-bottom:2px solid var(--brand);
  white-space:nowrap;
}
table.cmp tbody td{
  padding:18px 22px;
  border-bottom:1px solid var(--line);
  color:var(--muted);
  vertical-align:top;
}
table.cmp tbody tr:nth-child(even){background:#FBFAFF;}
table.cmp tbody tr:last-child td{border-bottom:0;}
table.cmp tbody td:first-child{
  color:var(--ink);
  font-weight:700;
  white-space:nowrap;
}
.cmp-note{
  margin-top:16px;
  font-size:13px;
  color:var(--muted);
}

/* ---------------- FAQ ---------------- */
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:0 24px;
  box-shadow:var(--sh);
  transition:box-shadow var(--t),border-color var(--t);
  position:relative;
  overflow:hidden;
}
.faq-item::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:3px;
  background:var(--brand);
  transform:scaleY(0);
  transform-origin:top center;
  transition:transform var(--t);
}
.faq-item[open]::before{transform:scaleY(1);}
.faq-item[open]{border-color:#DED9F7;box-shadow:var(--sh-h);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:22px 0;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"\f078";
  font-family:"Font Awesome 6 Free","Font Awesome 6 Pro",sans-serif;
  font-weight:900;
  font-size:13px;
  color:var(--brand);
  flex:0 0 auto;
  transition:transform var(--t);
}
.faq-item[open] summary::after{transform:rotate(180deg);}
.faq-body{
  padding:0 0 24px;
  font-size:15px;
  color:var(--muted);
  line-height:1.8;
  max-width:820px;
}

/* ---------------- 底部 CTA ---------------- */
.cta-section{
  position:relative;
  background:
    radial-gradient(rgba(255,255,255,.08) 1px, transparent 1px) 0 0/18px 18px,
    linear-gradient(135deg,#14102E 0%,#221A59 62%,#1E1842 100%);
  color:#fff;
  padding:82px 0;
  overflow:hidden;
}
.cta-section::after{
  content:"";
  position:absolute;
  left:-140px;
  bottom:-200px;
  width:400px;
  height:400px;
  border-radius:50%;
  background:linear-gradient(140deg,rgba(22,214,166,.35),rgba(108,75,255,.4));
}
.cta-section .wrap{position:relative;z-index:2;}
.cta-section h2{color:#fff;margin-bottom:14px;}
.cta-section .lead{color:rgba(255,255,255,.76);max-width:560px;}
.cta-points{margin-top:24px;display:grid;gap:10px;}
.cta-points li{
  position:relative;
  padding-left:26px;
  font-size:15px;
  color:rgba(255,255,255,.86);
}
.cta-points li::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free",sans-serif;
  font-weight:900;
  position:absolute;
  left:0;
  top:2px;
  font-size:13px;
  color:var(--mint);
}

.form-card{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-lg);
  padding:30px;
}
.form-row{margin-bottom:16px;}
.form-row label{
  display:block;
  font-size:13px;
  font-weight:600;
  color:rgba(255,255,255,.82);
  margin-bottom:8px;
}
.form-row input,
.form-row textarea{
  width:100%;
  min-height:48px;
  padding:12px 14px;
  border-radius:var(--r-sm);
  border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.1);
  color:#fff;
  font-size:15px;
  transition:border-color var(--t),background var(--t);
}
.form-row textarea{min-height:104px;resize:vertical;line-height:1.7;}
.form-row input::placeholder,
.form-row textarea::placeholder{color:rgba(255,255,255,.5);}
.form-row input:focus,
.form-row textarea:focus{
  outline:none;
  border-color:var(--mint);
  background:rgba(255,255,255,.16);
}
.form-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.form-tip{
  display:none;
  font-size:13px;
  color:var(--mint);
}
.form-tip.is-show{display:block;}

/* ---------------- 页脚 ---------------- */
.site-footer{
  background:var(--ink);
  color:#C9C5E4;
  padding:64px 0 26px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:36px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.foot-brand .brand{color:#fff;margin-bottom:14px;}
.foot-brand p{
  font-size:14px;
  color:#9B96BC;
  max-width:320px;
  line-height:1.8;
}
.foot-col h4{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
}
.foot-col ul{display:grid;gap:10px;}
.foot-col li{font-size:14px;color:#9B96BC;}
.foot-col a{color:#C9C5E4;transition:color var(--t);}
.foot-col a:hover{color:var(--mint);}
.foot-acc{display:none;}
.foot-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:22px;
  font-size:13px;
  color:#8B86AE;
}

/* ---------------- 移动端底部 Tab ---------------- */
.tabbar{
  display:none;
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:90;
  height:58px;
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(255,255,255,.97);
  border-top:1px solid var(--line);
  box-shadow:0 -6px 20px rgba(20,16,46,.07);
}
.tabbar-inner{
  display:flex;
  height:58px;
  align-items:stretch;
}
.tab-item{
  flex:1;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:3px;
  font-size:10px;
  font-weight:600;
  color:var(--muted);
  position:relative;
  transition:color var(--t);
}
.tab-item i{font-size:19px;line-height:1;}
.tab-item::before{
  content:"";
  position:absolute;
  top:0;
  width:26px;
  height:3px;
  border-radius:0 0 3px 3px;
  background:var(--brand);
  transform:scaleX(0);
  transition:transform var(--t);
}
.tab-item.active{color:var(--brand);}
.tab-item.active::before{transform:scaleX(1);}

/* ---------------- 响应式 ---------------- */
@media (max-width:1023px){
  .section{padding:60px 0;}
  .section.tight{padding:48px 0;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-right .btn{display:none;}
  .tabbar{display:block;}
  body{padding-bottom:74px;}
  .anchor-col{position:static;}
  .anchor-nav{
    padding:14px;
    overflow-x:auto;
    -webkit-overflow-scrolling:touch;
  }
  .anchor-nav h3{display:none;}
  .anchor-nav ol{
    flex-direction:row;
    gap:10px;
    width:max-content;
  }
  .anchor-nav a{
    white-space:nowrap;
    background:var(--bg);
    padding:8px 14px;
    border-radius:999px;
  }
  .anchor-nav a::before{display:none;}
  .anchor-cta{display:none;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .foot-brand{grid-column:1 / -1;}
}

@media (max-width:767px){
  .wrap{padding:0 20px;}
  .page-hero{padding:56px 0 50px;}
  .hero-metrics{grid-template-columns:1fr;gap:14px;}
  .hero-metrics .num{font-size:24px;}
  .flow-block{padding:24px;}
  .steps{grid-template-columns:1fr;}
  .cta-section{padding:56px 0;}
  .form-card{padding:22px;}

  /* 表格转纵向键值对 */
  table.cmp thead{display:none;}
  table.cmp,
  table.cmp tbody,
  table.cmp tr,
  table.cmp td{display:block;width:100%;}
  table.cmp tr{
    padding:16px 18px;
    border-bottom:1px solid var(--line);
  }
  table.cmp tbody tr:last-child{border-bottom:0;}
  table.cmp tbody td{
    padding:6px 0;
    border-bottom:0;
    font-size:14px;
  }
  table.cmp tbody td:first-child{
    font-size:16px;
    color:var(--ink);
    margin-bottom:4px;
  }
  table.cmp tbody td[data-label]::before{
    content:attr(data-label);
    display:inline-block;
    min-width:52px;
    font-size:12px;
    font-weight:700;
    color:var(--brand);
    margin-right:10px;
  }

  .foot-grid{display:none;}
  .foot-acc{display:grid;gap:12px;padding-bottom:26px;border-bottom:1px solid rgba(255,255,255,.1);}
  .foot-acc details{
    background:rgba(255,255,255,.05);
    border-radius:14px;
    padding:0 16px;
  }
  .foot-acc summary{
    list-style:none;
    cursor:pointer;
    padding:16px 0;
    font-size:15px;
    font-weight:600;
    color:#fff;
    display:flex;
    justify-content:space-between;
    align-items:center;
  }
  .foot-acc summary::-webkit-details-marker{display:none;}
  .foot-acc summary::after{
    content:"\f078";
    font-family:"Font Awesome 6 Free",sans-serif;
    font-weight:900;
    font-size:12px;
    color:var(--mint);
    transition:transform var(--t);
  }
  .foot-acc details[open] summary::after{transform:rotate(180deg);}
  .foot-acc ul{display:grid;gap:12px;padding-bottom:16px;}
  .foot-acc a{color:#C9C5E4;font-size:14px;}
}

@media (max-width:520px){
  .page-hero h1{font-size:30px;}
  .hero-tags span{font-size:12px;padding:5px 11px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}