/* roulang page: index */
:root{
  --brand:#6C4CF1;
  --brand-dark:#5638D6;
  --brand-light:#EDE8FF;
  --mint:#12D8A0;
  --coral:#FF7A4D;
  --grad:linear-gradient(135deg,#6C4CF1 0%,#C13BE8 100%);
  --ink:#1A1530;
  --ink-2:#5A5470;
  --ink-3:#8B85A3;
  --bg:#F7F6FB;
  --card:#FFFFFF;
  --line:#E9E6F3;
  --dark:#17112B;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow:0 1px 2px rgba(26,21,48,.04),0 8px 24px rgba(108,76,241,.07);
  --shadow-hover:0 2px 4px rgba(26,21,48,.06),0 16px 36px rgba(108,76,241,.14);
  --side-w:248px;
  --bs-primary:#6C4CF1;
  --bs-body-bg:#F7F6FB;
  --bs-body-color:#1A1530;
  --bs-link-color:#6C4CF1;
  --bs-link-hover-color:#5638D6;
  --bs-border-radius:16px;
  --bs-body-font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid rgba(193,59,232,.45);outline-offset:2px;border-radius:8px;}
.tnum{font-variant-numeric:tabular-nums;}

/* ---------- 布局骨架 ---------- */
.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.app-main{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column;}
.app-main > main{flex:1;}

/* ---------- 左侧导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:var(--side-w);
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:22px 16px 18px;z-index:1040;
}
.side-brand{display:flex;align-items:center;gap:10px;padding:6px 8px 20px;}
.brand-mark{
  flex:0 0 38px;width:38px;height:38px;border-radius:12px;
  background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:16px;box-shadow:0 6px 16px rgba(108,76,241,.28);
}
.side-brand .brand-text{display:flex;flex-direction:column;line-height:1.2;}
.side-brand strong{font-size:18px;font-weight:800;letter-spacing:.5px;color:var(--ink);}
.side-brand em{font-style:normal;font-size:12px;color:var(--ink-3);margin-top:3px;}
.side-menu{display:flex;flex-direction:column;gap:4px;margin-top:6px;}
.side-link{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:11px 14px;border-radius:12px;color:var(--ink-2);
  font-size:15px;font-weight:500;transition:background .2s ease,color .2s ease;
}
.side-link i{width:20px;text-align:center;font-size:15px;color:var(--ink-3);transition:color .2s ease;}
.side-link:hover{background:#F4F1FF;color:var(--brand-dark);}
.side-link:hover i{color:var(--brand);}
.side-link.is-active{background:var(--brand-light);color:var(--brand-dark);font-weight:700;}
.side-link.is-active i{color:var(--brand);}
.side-link.is-active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:0 3px 3px 0;background:var(--grad);
}
.side-foot{margin-top:auto;padding-top:18px;display:flex;flex-direction:column;gap:10px;position:relative;}
.side-foot::before{
  content:"";position:absolute;top:0;left:8px;right:8px;height:1px;
  background:linear-gradient(90deg,rgba(108,76,241,0),rgba(108,76,241,.35),rgba(108,76,241,0));
}
.side-cta{display:flex;align-items:center;justify-content:center;font-size:14px;padding:10px 12px;}
.side-copy{font-size:12px;color:var(--ink-3);text-align:center;}

/* ---------- 移动端顶栏 ---------- */
.m-topbar{
  display:none;position:sticky;top:0;z-index:1030;
  align-items:center;justify-content:space-between;
  background:rgba(255,255,255,.94);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);padding:12px 20px;
}
.m-brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-size:17px;font-weight:800;}
.m-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px;font-size:14px;}
.m-burger{
  width:40px;height:40px;border-radius:12px;background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:16px;transition:background .2s ease;
}
.m-burger:hover{background:#E1D9FF;}
.nav-scrim{
  position:fixed;inset:0;background:rgba(23,17,43,.5);
  opacity:0;visibility:hidden;transition:opacity .3s ease;z-index:1035;
}
.nav-scrim.show{opacity:1;visibility:visible;}

/* ---------- 按钮 ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);padding:12px 26px;font-size:15px;font-weight:600;
  line-height:1.2;border:1px solid transparent;white-space:nowrap;
  transition:background .22s ease,color .22s ease,box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.btn-brand{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(108,76,241,.25);}
.btn-brand:hover{color:#fff;filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 12px 28px rgba(108,76,241,.36);}
.btn-line{background:#fff;color:var(--brand);border-color:rgba(108,76,241,.4);}
.btn-line:hover{background:var(--brand-light);color:var(--brand-dark);border-color:var(--brand);transform:translateY(-1px);}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.42);}
.btn-ghost:hover{background:rgba(255,255,255,.24);color:#fff;}
.btn-x[disabled]{opacity:.5;pointer-events:none;}

/* ---------- 区块通用 ---------- */
.section{padding:72px 0;}
.section--tight{padding-top:0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.section-head h2{font-size:28px;line-height:1.35;font-weight:800;letter-spacing:.2px;}
.section-head .sub{color:var(--ink-2);font-size:15px;margin-top:10px;max-width:660px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-light);border-radius:var(--r-pill);
  padding:4px 12px;margin-bottom:12px;
}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;white-space:nowrap;}
.link-arrow i{transition:transform .22s ease;}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- Hero ---------- */
.hero{padding:56px 0 60px;background:linear-gradient(180deg,#FFFFFF 0%,#F7F6FB 100%);}
.hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.hero-chip{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-dark);
  background:var(--brand-light);border-radius:var(--r-pill);padding:6px 14px;
}
.hero-copy h1{font-size:40px;line-height:1.25;font-weight:800;letter-spacing:-.2px;margin:18px 0 18px;}
.hero-copy h1 .hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{font-size:17px;color:var(--ink-2);max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 16px;}
.hero-note{font-size:13px;color:var(--ink-3);}
.hero-media{position:relative;border-radius:24px;overflow:hidden;box-shadow:0 22px 50px rgba(23,17,43,.16);}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.hero-veil{position:absolute;inset:0;background:linear-gradient(135deg,rgba(23,17,43,.40),rgba(108,76,241,.16));}
.hero-float{
  position:absolute;left:18px;right:18px;bottom:18px;
  background:rgba(255,255,255,.93);backdrop-filter:blur(8px);
  border-radius:16px;padding:14px 18px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.hero-float .hf-label{font-size:12.5px;color:var(--ink-3);}
.hero-float .hf-value{font-size:15px;font-weight:700;color:var(--ink);}

/* ---------- 数据徽章条 ---------- */
.stat-strip{padding:0 0 4px;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.stat-item{
  display:flex;align-items:center;gap:14px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-md);padding:18px 20px;
  box-shadow:var(--shadow);transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.stat-item:hover{transform:translateY(-2px);border-color:rgba(108,76,241,.35);box-shadow:var(--shadow-hover);}
.stat-num{
  font-size:30px;font-weight:800;line-height:1;font-variant-numeric:tabular-nums;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-label{font-size:13px;color:var(--ink-2);line-height:1.5;}

/* ---------- 品牌故事 ---------- */
.story-inner{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.story-media{border-radius:22px;overflow:hidden;box-shadow:var(--shadow);position:relative;}
.story-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.story-block p{color:var(--ink-2);font-size:15.5px;}
.story-points{display:flex;flex-direction:column;gap:16px;margin-top:26px;}
.story-point{
  display:flex;gap:14px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:16px 18px;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.story-point:hover{transform:translateY(-2px);border-color:rgba(108,76,241,.35);box-shadow:var(--shadow-hover);}
.point-ico{
  flex:0 0 40px;width:40px;height:40px;border-radius:12px;
  background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:15px;
}
.story-point h3{font-size:16px;font-weight:700;margin-bottom:4px;}
.story-point p{font-size:14px;color:var(--ink-2);}

/* ---------- 卡片栅格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.feature-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.feature-card:hover{transform:translateY(-2px);border-color:rgba(108,76,241,.35);box-shadow:var(--shadow-hover);}
.feature-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-light);}
.feature-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.feature-card:hover .feature-thumb img{transform:scale(1.03);}
.feature-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.feature-body h3{font-size:19px;line-height:1.5;font-weight:700;}
.feature-body p{font-size:14px;color:var(--ink-2);}
.chip{
  display:inline-flex;align-self:flex-start;font-size:12px;font-weight:600;
  color:var(--brand);background:var(--brand-light);border-radius:var(--r-pill);padding:3px 10px;
}
.chip--coral{color:#C2451F;background:#FFEDE6;}
.chip--mint{color:#0A8F6B;background:#E1FBF3;}

/* ---------- 最新信息列表 ---------- */
.latest-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;display:flex;flex-direction:column;color:inherit;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.post-card:hover{transform:translateY(-2px);border-color:rgba(108,76,241,.35);box-shadow:var(--shadow-hover);color:inherit;}
.post-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-light);}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-body h3{
  font-size:17px;line-height:1.5;font-weight:700;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-body p{
  font-size:13.5px;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;
  gap:10px;font-size:12.5px;color:var(--ink-3);border-top:1px dashed var(--line);
}
.post-meta i{color:var(--brand);opacity:.75;}
.post-card--wide{grid-column:span 3;flex-direction:row;}
.post-card--wide .post-thumb{flex:0 0 40%;aspect-ratio:auto;min-height:264px;}
.post-card--wide .post-body{padding:30px 34px;justify-content:center;}
.post-card--wide .post-body h3{font-size:23px;-webkit-line-clamp:2;}
.post-card--wide .post-body p{-webkit-line-clamp:3;font-size:14.5px;}

/* ---------- 空态 ---------- */
.empty-state{
  border:1.5px dashed rgba(108,76,241,.35);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;background:#fff;
}
.empty-state i{font-size:30px;color:var(--brand);}
.empty-state p{margin:14px 0 20px;color:var(--ink-2);font-size:15px;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item:hover{border-color:rgba(108,76,241,.35);}
.faq-q{
  position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:18px 22px;font-size:17px;font-weight:500;color:var(--ink);
  text-align:left;transition:color .2s ease;
}
.faq-q:hover{color:var(--brand-dark);}
.faq-q::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;background:var(--grad);border-radius:0 3px 3px 0;transition:height .25s ease;
}
.faq-item.open .faq-q::before{height:58%;}
.faq-q i{font-size:14px;color:var(--brand);transition:transform .25s ease;}
.faq-item.open .faq-q i{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-item.open .faq-a{max-height:340px;}
.faq-a-inner{padding:0 22px 20px;font-size:15px;color:var(--ink-2);}

/* ---------- 深色信任区 ---------- */
.section--dark{background:var(--dark);color:#fff;}
.section--dark .section-head h2{color:#fff;}
.section--dark .section-head .sub{color:rgba(255,255,255,.66);}
.section--dark .eyebrow{background:rgba(108,76,241,.28);color:#CFC4FF;}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:4px;}
.trust-item{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-md);padding:24px;
  transition:background .22s ease,border-color .22s ease,transform .22s ease;
}
.trust-item:hover{background:rgba(255,255,255,.09);border-color:rgba(139,120,255,.5);transform:translateY(-2px);}
.trust-item i{font-size:18px;color:var(--mint);}
.trust-item h3{color:#fff;font-size:17px;font-weight:700;margin:14px 0 8px;}
.trust-item p{font-size:14px;color:rgba(255,255,255,.66);}

/* ---------- 订阅 CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;background:var(--dark);border-radius:24px;
  padding:52px;color:#fff;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;
}
.cta-panel::after{
  content:"";position:absolute;right:-130px;top:-130px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,76,241,.55),transparent 70%);pointer-events:none;
}
.cta-panel h2{font-size:28px;line-height:1.35;font-weight:800;color:#fff;margin-bottom:14px;}
.cta-panel p{font-size:15px;color:rgba(255,255,255,.7);}
.cta-list{display:flex;flex-direction:column;gap:10px;margin-top:22px;}
.cta-list li{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.78);}
.cta-list li i{color:var(--mint);font-size:13px;}
.form-field{margin-bottom:16px;position:relative;z-index:1;}
.form-field label{display:block;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:6px;}
.form-control-x{
  width:100%;background:#fff;border:1px solid transparent;border-radius:12px;
  padding:12px 16px;font-size:15px;color:var(--ink);transition:border-color .2s ease,box-shadow .2s ease;
}
.form-control-x::placeholder{color:#A9A3BF;}
.form-control-x:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(108,76,241,.22);}
.form-note{font-size:12px;color:rgba(255,255,255,.52);margin-top:12px;}
.form-ok{font-size:13px;color:var(--mint);margin-top:10px;display:none;}
.form-ok.show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.7);margin-top:auto;padding:64px 0 0;position:relative;}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(108,76,241,0),rgba(108,76,241,.9),rgba(193,59,232,.9),rgba(108,76,241,0));
}
.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 strong{color:#fff;font-size:17px;font-weight:800;}
.footer-col p{font-size:14px;color:rgba(255,255,255,.62);}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:rgba(255,255,255,.64);font-size:14px;}
.footer-links a:hover{color:#fff;}
.footer-links span{color:rgba(255,255,255,.64);font-size:14px;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.1);padding:22px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1399.98px){
  .shell{max-width:1200px;}
}
@media (max-width:1199.98px){
  :root{--side-w:88px;}
  .side-brand{justify-content:center;padding:6px 0 18px;}
  .side-brand .brand-text{display:none;}
  .side-link{justify-content:center;padding:12px 0;}
  .side-link span{display:none;}
  .side-link.is-active::before{height:70%;}
  .side-copy{display:none;}
  .side-cta{padding:10px 6px;font-size:12.5px;}
}
@media (max-width:991.98px){
  .side-nav{
    width:282px;transform:translateX(-100%);
    transition:transform .3s ease;box-shadow:0 0 60px rgba(23,17,43,.28);
  }
  .side-nav.open{transform:translateX(0);}
  .side-brand{justify-content:flex-start;padding:6px 8px 20px;}
  .side-brand .brand-text{display:flex;}
  .side-link{justify-content:flex-start;padding:11px 14px;}
  .side-link span{display:inline;}
  .side-copy{display:block;}
  .side-cta{padding:10px 12px;font-size:14px;}
  .app-main{margin-left:0;}
  .m-topbar{display:flex;}
  .hero{padding:36px 0 48px;}
  .hero-inner{grid-template-columns:1fr;gap:32px;}
  .hero-copy h1{font-size:32px;}
  .card-grid,.latest-grid{grid-template-columns:repeat(2,1fr);}
  .post-card--wide{grid-column:span 2;flex-direction:column;}
  .post-card--wide .post-thumb{flex:none;aspect-ratio:16/9;min-height:0;}
  .post-card--wide .post-body{padding:24px;}
  .post-card--wide .post-body h3{font-size:20px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .trust-grid{grid-template-columns:repeat(2,1fr);}
  .story-inner{grid-template-columns:1fr;gap:32px;}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:38px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  body{font-size:15px;line-height:1.85;}
  .shell{padding:0 20px;}
  .section{padding:48px 0;}
  .hero{padding:28px 0 40px;}
  .hero-copy h1{font-size:30px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions{gap:12px;}
  .btn-x{padding:11px 20px;font-size:14.5px;width:100%;}
  .hero-actions .btn-x{width:auto;}
  .card-grid,.latest-grid{grid-template-columns:1fr;gap:16px;}
  .post-card--wide{grid-column:span 1;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px;}
  .section-head h2{font-size:22px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:12px;}
  .stat-item{padding:14px 16px;gap:10px;}
  .stat-num{font-size:24px;}
  .trust-grid{grid-template-columns:1fr;}
  .cta-panel{padding:28px 22px;border-radius:20px;}
  .cta-panel h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: article */
:root{
  --brand:#6C4CF1;
  --brand-deep:#5638D6;
  --brand-soft:#EDE8FF;
  --mint:#12D8A0;
  --coral:#FF7A4D;
  --grad:linear-gradient(135deg,#6C4CF1 0%,#C13BE8 100%);
  --ink:#1A1530;
  --ink-2:#5A5470;
  --ink-3:#8B85A3;
  --bg:#F7F6FB;
  --card:#FFFFFF;
  --line:#E9E6F3;
  --dark:#17112B;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 1px 2px rgba(26,21,48,.04),0 8px 24px rgba(108,76,241,.07);
  --sh-2:0 2px 4px rgba(26,21,48,.06),0 16px 36px rgba(108,76,241,.14);
  --sidebar:248px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --bs-primary:#6C4CF1;
  --bs-body-font-family:var(--font);
  --bs-border-radius:16px;
  --bs-link-color:#5638D6;
  --bs-link-hover-color:#6C4CF1;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-deep);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand)}
button,input{font-family:inherit}
:focus-visible{outline:2px solid rgba(193,59,232,.4);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.tabular{font-variant-numeric:tabular-nums}

/* ---------- 布局骨架 ---------- */
.side-shell{
  position:fixed;
  inset:0 auto 0 0;
  width:var(--sidebar);
  background:#fff;
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  padding:24px 16px 20px;
  z-index:1040;
}
.side-shell::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:72px;
  background:linear-gradient(180deg,rgba(255,255,255,0) 0%,#fff 70%);
  pointer-events:none;
}
.shell-main{
  margin-left:var(--sidebar);
  min-height:100vh;
  display:flex;
  flex-direction:column;
}
.shell{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  padding:6px 8px 20px;
  color:var(--ink);
}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:38px;height:38px;
  flex:0 0 38px;
  border-radius:12px;
  background:var(--grad);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  box-shadow:0 6px 16px rgba(108,76,241,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand-text strong{font-size:17px;font-weight:800;letter-spacing:.02em}
.brand-text span{font-size:12px;color:var(--ink-3);margin-top:2px;white-space:nowrap}

.side-menu{
  display:flex;
  flex-direction:column;
  gap:4px;
  margin-top:8px;
  flex:1 1 auto;
  overflow-y:auto;
  padding-bottom:16px;
}
.side-link{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  padding:11px 14px;
  border-radius:14px;
  color:var(--ink-2);
  font-size:15px;
  font-weight:500;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.side-link i{width:18px;text-align:center;font-size:15px;color:var(--ink-3);transition:color .2s ease}
.side-link:hover{background:#F4F1FF;color:var(--brand-deep)}
.side-link:hover i{color:var(--brand)}
.side-link.is-active{
  background:var(--brand-soft);
  color:var(--brand-deep);
  font-weight:700;
}
.side-link.is-active i{color:var(--brand)}
.side-link.is-active::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:3px;height:20px;
  border-radius:0 3px 3px 0;
  background:var(--grad);
}
.side-foot{display:flex;flex-direction:column;gap:10px;padding-top:16px}
.side-pill{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  width:100%;
  padding:10px 16px;
  border-radius:999px;
  background:var(--grad);
  color:#fff;
  font-size:14px;
  font-weight:700;
  box-shadow:0 10px 22px rgba(108,76,241,.26);
  transition:transform .22s ease,filter .22s ease,box-shadow .22s ease;
}
.side-pill:hover{color:#fff;transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 14px 28px rgba(108,76,241,.32)}
.side-copy{font-size:12px;color:var(--ink-3);text-align:center;line-height:1.6}

/* ---------- 移动端顶栏与抽屉 ---------- */
.mobile-bar{
  display:none;
  position:sticky;
  top:0;
  z-index:1035;
  height:60px;
  align-items:center;
  justify-content:space-between;
  padding:0 20px;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.mobile-brand{display:flex;align-items:center;gap:10px;color:var(--ink)}
.mobile-brand .brand-mark{width:32px;height:32px;flex:0 0 32px;border-radius:10px;font-size:14px}
.mobile-brand strong{font-size:16px;font-weight:800}
.mobile-toggle{
  width:40px;height:40px;
  border:1px solid var(--line);
  background:#fff;
  border-radius:12px;
  color:var(--ink);
  font-size:16px;
}
.nav-drawer{width:84% !important;max-width:320px;border-right:1px solid var(--line)}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:16px 18px}
.nav-drawer .offcanvas-body{padding:16px 14px;display:flex;flex-direction:column}
.nav-drawer .side-link{padding:12px 14px}
.nav-drawer .btn-close{filter:none;opacity:.55}

/* ---------- 面包屑 ---------- */
.crumb{
  font-size:13px;
  color:var(--ink-3);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:26px 0 0;
}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#C9C3DC}

/* ---------- 文章头部 ---------- */
.article-main{padding-bottom:72px;flex:1 1 auto}
.page-banner{
  position:relative;
  margin-top:20px;
  border-radius:var(--r-lg);
  overflow:hidden;
  min-height:190px;
  display:flex;
  align-items:flex-end;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;
  background-position:center;
}
.page-banner::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(23,17,43,.72) 0%,rgba(108,76,241,.42) 100%);
}
.page-banner-inner{position:relative;z-index:2;padding:28px 32px;color:#fff}
.page-banner-inner .chip-solid{
  background:rgba(255,255,255,.16);
  color:#fff;
  border:1px solid rgba(255,255,255,.3);
  backdrop-filter:blur(6px);
}
.page-banner-inner p{margin-top:10px;font-size:14px;color:rgba(255,255,255,.82);max-width:640px}

.article-head{padding:32px 0 8px}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand-deep);
  font-size:13px;
  font-weight:700;
  line-height:1.5;
}
.article-h1{
  font-size:40px;
  line-height:1.25;
  font-weight:800;
  margin-top:16px;
  letter-spacing:-.02em;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 20px;
  margin-top:18px;
  font-size:13px;
  color:var(--ink-3);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:var(--brand)}
.meta-divider{width:1px;height:14px;background:var(--line)}

/* ---------- 阅读区 ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:32px;
  margin-top:28px;
}
.reading{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:40px 44px;
  box-shadow:var(--sh-1);
}
.article-body{max-width:820px;font-size:16px;line-height:1.9;color:#25203C}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em;line-height:1.9}
.article-body h2{
  font-size:26px;
  line-height:1.35;
  margin:32px 0 16px;
  padding-left:14px;
  position:relative;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.22em;bottom:.22em;
  width:4px;
  border-radius:4px;
  background:var(--grad);
}
.article-body h3{font-size:19px;line-height:1.5;margin:24px 0 12px}
.article-body h4{font-size:17px;margin:20px 0 10px;color:var(--ink-2)}
.article-body a{color:var(--brand-deep);border-bottom:1px solid rgba(108,76,241,.35)}
.article-body a:hover{color:var(--brand);border-bottom-color:var(--brand)}
.article-body strong{color:var(--ink);font-weight:700}
.article-body blockquote{
  position:relative;
  margin:24px 0;
  padding:16px 20px 16px 22px;
  background:#FBFAFF;
  border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--ink-2);
  font-size:15px;
}
.article-body blockquote::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  border-radius:3px;
  background:var(--grad);
}
.article-body ul,
.article-body ol{margin:0 0 1.2em;padding-left:0}
.article-body ul li,
.article-body ol li{
  position:relative;
  padding-left:22px;
  margin-bottom:10px;
  line-height:1.85;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:4px;top:.72em;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--brand);
}
.article-body ol{counter-reset:olc}
.article-body ol li{counter-increment:olc}
.article-body ol li::before{
  content:counter(olc);
  position:absolute;
  left:0;top:.18em;
  width:20px;height:20px;
  border-radius:50%;
  background:var(--brand-soft);
  color:var(--brand-deep);
  font-size:12px;
  font-weight:800;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  line-height:1;
}
.article-body img{
  border-radius:var(--r-md);
  margin:24px 0;
  width:100%;
  height:auto;
}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px}
.article-body table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  margin:24px 0;
  font-size:14px;
}
.article-body thead th{
  background:#F4F1FF;
  color:var(--brand-deep);
  font-weight:700;
  text-align:left;
  padding:12px 16px;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.article-body tbody td{
  padding:12px 16px;
  border-bottom:1px solid var(--line);
  color:var(--ink-2);
}
.article-body tbody tr:nth-child(even){background:#FBFAFF}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body hr{border:0;height:1px;background:var(--line);margin:32px 0}
.article-body code{
  background:#F4F1FF;
  color:var(--brand-deep);
  padding:2px 6px;
  border-radius:6px;
  font-size:14px;
}

/* 空态 */
.empty-state{
  border:1.5px dashed #D6CFEE;
  border-radius:var(--r-md);
  padding:56px 24px;
  text-align:center;
  background:#FCFBFF;
}
.empty-state i{font-size:34px;color:#C3B8F0;margin-bottom:14px;display:block}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:18px}

/* ---------- 侧栏 ---------- */
.article-aside{display:none}
.aside-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:22px;
  box-shadow:var(--sh-1);
  margin-bottom:20px;
}
.aside-card h3{font-size:15px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.aside-card h3 i{color:var(--brand);font-size:14px}
.aside-links{display:flex;flex-direction:column;gap:2px}
.aside-links a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:9px 12px;
  border-radius:12px;
  color:var(--ink-2);
  font-size:14px;
  transition:background .2s ease,color .2s ease;
}
.aside-links a i{font-size:11px;color:#C3B8F0;transition:transform .2s ease,color .2s ease}
.aside-links a:hover{background:#F4F1FF;color:var(--brand-deep)}
.aside-links a:hover i{color:var(--brand);transform:translateX(3px)}
.aside-tags{display:flex;flex-wrap:wrap;gap:8px}
.aside-tags a{
  padding:5px 12px;
  border-radius:999px;
  background:#F4F1FF;
  color:var(--brand-deep);
  font-size:13px;
  transition:background .2s ease,color .2s ease;
}
.aside-tags a:hover{background:var(--grad);color:#fff}
.aside-note{
  font-size:13px;
  color:var(--ink-2);
  line-height:1.75;
  background:#FBFAFF;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:14px 16px;
}

/* ---------- 底部操作 + 推荐 ---------- */
.reading-foot{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-top:32px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:20px 24px;
  box-shadow:var(--sh-1);
}
.reading-foot p{font-size:14px;color:var(--ink-2)}
.btn-line{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 20px;
  border-radius:999px;
  border:1px solid rgba(108,76,241,.45);
  background:#fff;
  color:var(--brand-deep);
  font-size:14px;
  font-weight:700;
  transition:background .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-line:hover{background:#F4F1FF;color:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-solid{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:11px 22px;
  border-radius:999px;
  background:var(--grad);
  color:#fff;
  font-size:14px;
  font-weight:700;
  box-shadow:0 10px 22px rgba(108,76,241,.24);
  transition:transform .22s ease,filter .22s ease,box-shadow .22s ease;
}
.btn-solid:hover{color:#fff;transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 14px 28px rgba(108,76,241,.3)}

.section-block{margin-top:56px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:24px}
.section-head h2{font-size:26px;line-height:1.35}
.section-head p{font-size:14px;color:var(--ink-3);margin-top:8px}
.section-head .more{font-size:14px;font-weight:700;color:var(--brand-deep);display:inline-flex;align-items:center;gap:6px}
.section-head .more:hover{gap:10px}
.reco-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.reco-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.reco-card:hover{transform:translateY(-2px);border-color:rgba(108,76,241,.35);box-shadow:var(--sh-2)}
.reco-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#EDE8FF 0%,#F7F6FB 100%)}
.reco-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.reco-card:hover .reco-thumb img{transform:scale(1.03)}
.reco-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.reco-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.reco-body p{font-size:13px;color:var(--ink-3);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.reco-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;font-size:12px;color:var(--ink-3)}
.reco-foot i{color:var(--brand)}
.reco-card:hover .reco-foot i{transform:translateX(3px);transition:transform .22s ease}

/* ---------- 订阅 CTA ---------- */
.cta-band{
  margin-top:64px;
  border-radius:var(--r-lg);
  background:var(--dark);
  color:#fff;
  position:relative;
  overflow:hidden;
  padding:44px 48px;
}
.cta-band::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:var(--grad);
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-90px;top:-90px;
  width:280px;height:280px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(108,76,241,.55) 0%,rgba(108,76,241,0) 70%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:32px;align-items:center}
.cta-inner h2{color:#fff;font-size:26px;line-height:1.4}
.cta-inner p{color:rgba(255,255,255,.7);font-size:14px;margin-top:12px}
.cta-form{display:flex;flex-direction:column;gap:10px}
.cta-form label{font-size:13px;color:rgba(255,255,255,.72)}
.cta-form .field{display:flex;gap:10px}
.cta-form input{
  flex:1 1 auto;
  min-width:0;
  padding:12px 16px;
  border-radius:var(--r-sm);
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);
  color:#fff;
  font-size:14px;
}
.cta-form input::placeholder{color:rgba(255,255,255,.42)}
.cta-form input:focus{outline:none;border-color:#C13BE8;box-shadow:0 0 0 4px rgba(193,59,232,.18);background:rgba(255,255,255,.1)}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.3);
  background:transparent;
  color:#fff;
  font-size:14px;
  font-weight:700;
  white-space:nowrap;
  transition:background .22s ease,transform .22s ease,border-color .22s ease;
}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-1px);border-color:rgba(255,255,255,.5)}
.cta-privacy{font-size:12px;color:rgba(255,255,255,.45)}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:72px;background:var(--dark);color:rgba(255,255,255,.72);position:relative}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding:56px 0 32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;color:#fff}
.footer-brand strong{font-size:17px;font-weight:800}
.footer-col p{font-size:13px;line-height:1.8;color:rgba(255,255,255,.6)}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;font-weight:700}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a,
.footer-links span{font-size:13px;color:rgba(255,255,255,.6);transition:color .2s ease}
.footer-links a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 32px;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  font-size:12px;
  color:rgba(255,255,255,.45);
}

/* ---------- 响应式 ---------- */
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px}
  .article-aside{display:block}
  .aside-sticky{position:sticky;top:24px}
}
@media (min-width:1400px){
  .shell{max-width:1280px}
}
@media (max-width:1199px){
  .shell-main{margin-left:88px}
  :root{--sidebar:88px}
  .side-shell{align-items:center;padding:20px 10px 16px}
  .brand{justify-content:center;padding:6px 0 18px}
  .brand-text{display:none}
  .side-menu{width:100%;align-items:center}
  .side-link{justify-content:center;padding:12px 0;width:56px}
  .side-link span{display:none}
  .side-link i{font-size:17px}
  .side-foot{width:100%;align-items:center}
  .side-pill{width:48px;height:44px;padding:0;font-size:15px}
  .side-pill span{display:none}
  .side-copy{display:none}
}
@media (max-width:991px){
  .side-shell{display:none}
  .shell-main{margin-left:0}
  .mobile-bar{display:flex}
  .shell{padding:0 20px}
  .article-h1{font-size:30px;line-height:1.3}
  .reading{padding:26px 20px;border-radius:var(--r-md)}
  .article-body{font-size:15px;line-height:1.85}
  .article-body h2{font-size:22px;margin:28px 0 14px}
  .article-body h3{font-size:17px}
  .page-banner{min-height:150px;border-radius:var(--r-md)}
  .page-banner-inner{padding:20px}
  .reco-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .cta-inner{grid-template-columns:minmax(0,1fr);gap:22px}
  .cta-band{padding:32px 24px;border-radius:var(--r-md)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px;padding:44px 0 24px}
  .article-main{padding-bottom:52px}
  .section-block{margin-top:44px}
}
@media (max-width:576px){
  .article-h1{font-size:26px}
  .reco-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .cta-form .field{flex-direction:column}
  .btn-ghost{width:100%}
  .reading-foot{flex-direction:column;align-items:flex-start}
  .article-meta{font-size:12px}
  .section-head h2{font-size:22px}
}

/* roulang page: category1 */
:root{
  --brand:#6C4CF1;
  --brand-dark:#5638D6;
  --brand-light:#EDE8FF;
  --mint:#12D8A0;
  --coral:#FF7A4D;
  --grad:linear-gradient(135deg,#6C4CF1 0%,#C13BE8 100%);
  --ink:#1A1530;
  --ink-2:#5A5470;
  --ink-3:#8B85A3;
  --bg:#F7F6FB;
  --card:#FFFFFF;
  --line:#E9E6F3;
  --dark:#17112B;
  --r-card:20px;
  --r-sm:16px;
  --r-pill:999px;
  --r-input:12px;
  --sh-1:0 1px 2px rgba(26,21,48,.04),0 8px 24px rgba(108,76,241,.07);
  --sh-2:0 2px 4px rgba(26,21,48,.06),0 16px 36px rgba(108,76,241,.14);
  --rail:248px;
  --bs-primary:#6C4CF1;
  --bs-link-color:#6C4CF1;
  --bs-link-hover-color:#5638D6;
  --bs-body-color:#1A1530;
  --bs-body-bg:#F7F6FB;
  --bs-border-radius:16px;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease,box-shadow .22s ease,transform .22s ease}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4{margin:0;font-weight:800;color:var(--ink);letter-spacing:.2px}
h1{font-size:40px;line-height:1.25}
h2{font-size:28px;line-height:1.35}
h3{font-size:19px;line-height:1.5;font-weight:700}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button,input{font-family:inherit}
:focus-visible{outline:2px solid rgba(193,59,232,.4);outline-offset:2px}
::selection{background:rgba(108,76,241,.18)}

/* ---------- 布局骨架 ---------- */
.app-shell{min-height:100vh}
.main-wrap{
  margin-left:var(--rail);
  min-height:100vh;
  display:flex;
  flex-direction:column;
}
.page-shell{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
main{flex:1 0 auto}
.section{padding:72px 0}
.section-tight{padding:28px 0 0}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{margin-bottom:12px}
.section-head p{color:var(--ink-2);font-size:16px}

/* ---------- 左侧导航 ---------- */
.side-rail{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--rail);
  background:#fff;
  border-right:1px solid var(--line);
  z-index:1035;
}
.side-rail::after{
  content:"";
  position:absolute;
  left:0;right:1px;bottom:0;
  height:56px;
  background:linear-gradient(180deg,rgba(255,255,255,0),#fff);
  pointer-events:none;
}
.rail-inner{
  height:100%;
  padding:24px 16px;
  display:flex;
  flex-direction:column;
  gap:26px;
  overflow-y:auto;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  padding:6px 8px;
  color:var(--ink);
}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:42px;height:42px;
  flex:0 0 42px;
  border-radius:14px;
  background:var(--grad);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  box-shadow:0 8px 18px rgba(108,76,241,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:18px;font-weight:800;letter-spacing:.5px}
.brand-text small{font-size:12px;color:var(--ink-3);font-weight:500}

.side-menu{display:flex;flex-direction:column;gap:6px}
.side-link{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  padding:12px 14px;
  border-radius:14px;
  color:var(--ink-2);
  font-size:15px;
  font-weight:600;
  transition:background-color .22s ease,color .22s ease;
}
.side-link i{width:20px;text-align:center;font-size:15px;color:var(--ink-3);transition:color .22s ease}
.side-link:hover{background:var(--brand-light);color:var(--brand-dark)}
.side-link:hover i{color:var(--brand)}
.side-link.is-active{background:var(--brand-light);color:var(--brand-dark)}
.side-link.is-active i{color:var(--brand)}
.side-link.is-active::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:3px;height:22px;
  border-radius:999px;
  background:var(--grad);
}
.rail-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding-top:16px}
.rail-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  width:100%;
  padding:11px 16px;
  font-size:14px;
}
.rail-copy{font-size:12px;color:var(--ink-3);text-align:center;margin:0}

/* ---------- 移动端顶栏 ---------- */
.mobile-bar{
  display:none;
  position:sticky;
  top:0;
  z-index:1030;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:12px 20px;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.mobile-bar .brand-mark{width:36px;height:36px;flex:0 0 36px;border-radius:12px;font-size:16px}
.mobile-bar .brand-text small{display:none}
.hamburger{
  width:44px;height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--brand-dark);
  font-size:17px;
  transition:background-color .22s ease,border-color .22s ease;
}
.hamburger:hover{background:var(--brand-light);border-color:rgba(108,76,241,.35)}

.drawer{--bs-offcanvas-width:84%;background:#fff}
.drawer .offcanvas-header{
  padding:18px 20px;
  border-bottom:1px solid var(--line);
  align-items:center;
}
.drawer .offcanvas-body{
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:22px;
}
.drawer-close{
  width:40px;height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-2);
  font-size:16px;
}
.drawer-close:hover{background:var(--brand-light);color:var(--brand-dark)}

/* ---------- 按钮 / 标签 ---------- */
.btn{border-radius:var(--r-pill);font-weight:700;transition:all .22s ease;border:1px solid transparent}
.btn:focus-visible{box-shadow:0 0 0 4px rgba(193,59,232,.25)}
.btn-brand{
  background-image:var(--grad);
  color:#fff;
  padding:12px 26px;
  font-size:15px;
  box-shadow:0 8px 20px rgba(108,76,241,.26);
}
.btn-brand:hover{color:#fff;filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-brand:active{transform:translateY(0)}
.btn-outline-brand{
  background:#fff;
  border:1px solid rgba(108,76,241,.45);
  color:var(--brand-dark);
  padding:12px 26px;
  font-size:15px;
}
.btn-outline-brand:hover{background:var(--brand-light);border-color:rgba(108,76,241,.6);color:var(--brand-dark);transform:translateY(-1px)}
.btn-on-dark{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.4);
  color:#fff;
  padding:12px 26px;
  font-size:15px;
}
.btn-on-dark:hover{background:rgba(255,255,255,.16);color:#fff;transform:translateY(-1px)}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border-radius:var(--r-pill);
  background:var(--brand-light);
  color:var(--brand-dark);
  font-size:13px;
  font-weight:700;
  letter-spacing:.3px;
}
.chip-mint{background:rgba(18,216,160,.14);color:#0B8F69}

/* ---------- 首屏 ---------- */
.page-hero{padding:52px 0 8px}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-3);
  margin-bottom:18px;
}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--brand)}
.hero-grid{
  display:grid;
  grid-template-columns:1.02fr .98fr;
  gap:44px;
  align-items:center;
}
.hero-copy .chip{margin-bottom:16px}
.hero-copy h1{margin-bottom:16px}
.hero-sub{
  font-size:17px;
  color:var(--ink-2);
  max-width:520px;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-note{
  margin-top:18px;
  font-size:13px;
  color:var(--ink-3);
}
.hero-media{
  position:relative;
  margin:0;
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  aspect-ratio:16/11;
  background:var(--brand-light);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(135deg,rgba(23,17,43,.38) 0%,rgba(23,17,43,.12) 62%,rgba(108,76,241,.22) 100%);
  pointer-events:none;
}

/* ---------- 数据徽章 ---------- */
.badge-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
}
.stat{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  padding:18px 20px;
  display:flex;
  flex-direction:column;
  gap:2px;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.stat:hover{transform:translateY(-2px);border-color:rgba(108,76,241,.35);box-shadow:var(--sh-2)}
.stat strong{
  font-size:26px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  line-height:1.25;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.stat span{font-size:13px;color:var(--ink-2)}

/* ---------- 图文块 ---------- */
.feature{
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:52px;
  align-items:center;
}
.feature + .feature{margin-top:64px}
.feature.is-reverse .feature-copy{order:2}
.feature.is-reverse .feature-media{order:1}
.feature-copy .chip{margin-bottom:14px}
.feature-copy h2{margin-bottom:14px}
.feature-copy p{color:var(--ink-2);margin-bottom:18px}
.feature-media{
  margin:0;
  border-radius:var(--r-sm);
  overflow:hidden;
  box-shadow:var(--sh-1);
  background:var(--brand-light);
  aspect-ratio:16/10;
}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.feature-media:hover img{transform:scale(1.03)}
.mini-list{display:flex;flex-direction:column;gap:10px}
.mini-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2)}
.mini-list i{color:var(--mint);font-size:15px;margin-top:6px}
.mini-list strong{color:var(--ink);font-weight:700}

/* ---------- 要点列表 ---------- */
.points{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
}
.point{
  display:flex;
  gap:14px;
  align-items:flex-start;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  padding:18px 20px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.point:hover{transform:translateY(-2px);border-color:rgba(108,76,241,.35);box-shadow:var(--sh-2)}
.point-icon{
  width:34px;height:34px;
  flex:0 0 34px;
  border-radius:11px;
  background:var(--brand-light);
  color:var(--brand-dark);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
}
.point-body h3{font-size:16px;font-weight:700;margin-bottom:4px}
.point-body p{font-size:14px;color:var(--ink-2);margin:0}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--dark);
  border-radius:24px;
  padding:52px;
  color:#fff;
}
.cta-band::before{
  content:"";
  position:absolute;
  top:-120px;right:-80px;
  width:320px;height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(108,76,241,.55) 0%,rgba(108,76,241,0) 70%);
  pointer-events:none;
}
.cta-band::after{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  background:var(--grad);
}
.cta-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:48px;
  align-items:center;
}
.cta-band h2{color:#fff;margin-bottom:14px}
.cta-sub{color:rgba(255,255,255,.74);font-size:16px;margin-bottom:24px;max-width:460px}
.sub-form{display:flex;flex-direction:column;gap:10px}
.sub-form label{font-size:13px;color:rgba(255,255,255,.72);font-weight:600}
.sub-row{display:flex;gap:12px;flex-wrap:wrap}
.sub-input{
  flex:1 1 200px;
  min-width:0;
  background:#fff;
  border:1px solid transparent;
  border-radius:var(--r-input);
  padding:12px 16px;
  font-size:15px;
  color:var(--ink);
}
.sub-input::placeholder{color:var(--ink-3)}
.sub-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(108,76,241,.22);background:#fff}
.sub-note{font-size:12px;color:rgba(255,255,255,.6);margin:0}
.sub-note.is-warn{color:#FFB49A}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:72px;
  background:var(--dark);
  color:#C9C4DC;
  position:relative;
}
.site-footer::before{
  content:"";
  display:block;
  height:1px;
  background:var(--grad);
}
.site-footer .shell{
  max-width:1200px;
  margin:0 auto;
  padding:56px 32px 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:36px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{width:36px;height:36px;flex:0 0 36px;border-radius:12px;font-size:15px}
.footer-brand strong{color:#fff;font-size:17px;letter-spacing:.5px}
.footer-col p{color:#A9A3C0;font-size:14px;margin:0;max-width:320px}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin-bottom:14px;
}
.footer-links{display:flex;flex-direction:column;gap:9px}
.footer-links a,.footer-links span{color:#A9A3C0;font-size:14px}
.footer-links a:hover{color:#fff}
.footer-bottom{
  margin-top:36px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13px;
  color:#8B85A3;
}

/* ---------- 响应式 ---------- */
@media (min-width:1400px){
  .page-shell{max-width:1280px}
  .site-footer .shell{max-width:1280px}
}
@media (max-width:1199.98px) and (min-width:992px){
  :root{--rail:88px}
  .side-rail{width:var(--rail)}
  .rail-inner{padding:20px 12px;align-items:center;gap:22px}
  .brand-text,
  .side-link span,
  .rail-cta span,
  .rail-copy{display:none}
  .brand{padding:0}
  .side-menu{width:100%}
  .side-link{justify-content:center;padding:14px 0}
  .rail-cta{width:44px;height:44px;padding:0;border-radius:14px}
  .cta-band{padding:44px}
}
@media (max-width:991.98px){
  :root{--rail:0px}
  .side-rail{display:none}
  .main-wrap{margin-left:0}
  .mobile-bar{display:flex}
  .page-shell{padding:0 20px}
  .site-footer .shell{padding:44px 20px 24px}
  .section{padding:48px 0}
  .section-tight{padding:24px 0 0}
  .page-hero{padding:34px 0 0}
  h1{font-size:30px}
  h2{font-size:22px}
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero-media{aspect-ratio:16/10}
  .hero-sub{font-size:16px;margin-bottom:22px}
  .feature{grid-template-columns:1fr;gap:28px}
  .feature.is-reverse .feature-copy{order:1}
  .feature.is-reverse .feature-media{order:2}
  .feature + .feature{margin-top:48px}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .cta-band{padding:32px 24px;border-radius:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-col p{max-width:none}
}
@media (max-width:767.98px){
  body{font-size:15px;line-height:1.85}
  .badge-row{grid-template-columns:1fr 1fr;gap:12px}
  .points{grid-template-columns:1fr;gap:12px}
  .stat strong{font-size:22px}
  .btn-brand,.btn-outline-brand,.btn-on-dark{padding:11px 20px;font-size:14px}
  .hero-actions{gap:10px}
  .sub-row{flex-direction:column}
  .sub-input{width:100%}
  .sub-form .btn-brand{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .page-shell{padding:0 16px}
  .site-footer .shell{padding:36px 16px 20px}
  .hero-copy h1{font-size:27px}
  .stat{padding:14px 16px}
}

/* roulang page: category2 */
:root{
  --brand:#6C4CF1;
  --brand-deep:#5638D6;
  --brand-soft:#EDE8FF;
  --mint:#12D8A0;
  --coral:#FF7A4D;
  --ink:#1A1530;
  --ink-2:#5A5470;
  --ink-3:#8B85A3;
  --bg:#F7F6FB;
  --card:#FFFFFF;
  --line:#E9E6F3;
  --dark:#17112B;
  --grad:linear-gradient(135deg,#6C4CF1 0%,#C13BE8 100%);
  --radius-card:20px;
  --radius-sm:16px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(26,21,48,.04),0 8px 24px rgba(108,76,241,.07);
  --shadow-2:0 2px 4px rgba(26,21,48,.06),0 16px 36px rgba(108,76,241,.14);
  --trans:220ms ease;
  --bs-primary:#6C4CF1;
  --bs-primary-rgb:108,76,241;
  --bs-body-font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --bs-border-radius:16px;
  --bs-link-color:#5638D6;
  --bs-link-hover-color:#6C4CF1;
  --bs-body-color:#1A1530;
  --bs-body-bg:#F7F6FB;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--trans)}
a:hover{color:var(--brand-deep)}
button{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{line-height:1.35;font-weight:700}
:focus-visible{outline:2px solid rgba(193,59,232,.4);outline-offset:2px;border-radius:8px}

/* ============ App Shell ============ */
.app-shell{display:flex;min-height:100vh;align-items:flex-start}

.side-rail{
  position:sticky;
  top:0;
  height:100vh;
  width:248px;
  flex:0 0 248px;
  display:flex;
  flex-direction:column;
  background:#fff;
  border-right:1px solid var(--line);
  padding:22px 14px 14px;
  overflow-y:auto;
  scrollbar-width:thin;
}
.rail-head{padding:0 6px 18px;border-bottom:1px solid var(--line);margin-bottom:16px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:var(--grad);color:#fff;display:grid;place-items:center;
  font-size:17px;box-shadow:0 6px 16px rgba(108,76,241,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:19px;letter-spacing:.5px}
.brand-text small{font-size:12px;color:var(--ink-3);margin-top:2px}

.side-menu{display:flex;flex-direction:column;gap:4px}
.side-link{
  position:relative;
  display:flex;align-items:center;gap:12px;
  padding:11px 14px;
  border-radius:14px;
  color:var(--ink-2);
  font-size:15px;
  transition:background var(--trans),color var(--trans);
}
.side-link i{width:20px;text-align:center;font-size:15px;color:var(--ink-3);transition:color var(--trans)}
.side-link:hover{background:#F3F0FF;color:var(--brand-deep)}
.side-link:hover i{color:var(--brand)}
.side-link.is-active{background:var(--brand-soft);color:var(--brand-deep);font-weight:600}
.side-link.is-active i{color:var(--brand)}
.side-link.is-active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:3px;background:var(--grad);
}

.rail-foot{margin-top:auto;padding-top:18px}
.rail-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  width:100%;padding:10px 14px;border-radius:var(--radius-pill);
  background:var(--brand-soft);color:var(--brand-deep);
  font-size:14px;font-weight:600;
  transition:background var(--trans),transform var(--trans);
}
.rail-cta:hover{background:#E2DAFF;color:var(--brand-deep);transform:translateY(-1px)}
.rail-copy{font-size:12px;color:var(--ink-3);text-align:center;margin-top:12px;line-height:1.6}
.rail-fade{
  position:sticky;bottom:0;height:44px;margin:0 -14px -14px;
  background:linear-gradient(180deg,rgba(255,255,255,0),#fff 70%);
  pointer-events:none;
}

/* ============ Main ============ */
.main-area{flex:1 1 auto;min-width:0;display:flex;flex-direction:column}
.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1400px){.shell{max-width:1280px}}

.mobile-bar{display:none}
.mobile-drawer{width:84% !important;max-width:340px}

/* ============ 面包屑 ============ */
.crumbs{padding:24px 0 0}
.crumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-2)}
.crumb-list a{color:var(--ink-2)}
.crumb-list a:hover{color:var(--brand-deep)}
.crumb-sep{color:var(--ink-3)}
.crumb-current{color:var(--brand-deep);font-weight:600}

/* ============ 矮 Hero ============ */
.page-hero{padding:28px 0 8px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.hero-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:var(--radius-pill);
  background:var(--brand-soft);color:var(--brand-deep);
  font-size:13px;font-weight:600;
}
.hero-title{
  font-size:38px;line-height:1.25;margin:16px 0 14px;letter-spacing:-.3px;
}
.hero-title em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:16px;color:var(--ink-2);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-note{margin-top:16px;font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:8px}
.hero-note i{color:var(--mint)}

.hero-media{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  aspect-ratio:16/11;box-shadow:var(--shadow-1);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(23,17,43,.32) 0%,rgba(108,76,241,.18) 100%);
}
.hero-badge{
  position:absolute;left:18px;bottom:18px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.92);color:var(--brand-deep);
  font-size:13px;font-weight:600;backdrop-filter:blur(6px);
}

/* ============ 按钮 ============ */
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:transform var(--trans),box-shadow var(--trans),background var(--trans),color var(--trans),border-color var(--trans);
}
.btn-main{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(108,76,241,.26)}
.btn-main:hover{color:#fff;transform:translateY(-1px);box-shadow:0 12px 28px rgba(108,76,241,.34);filter:brightness(1.06)}
.btn-ghost{background:#fff;color:var(--brand-deep);border-color:rgba(108,76,241,.42)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);border-color:var(--brand)}
.btn-main:active,.btn-ghost:active{transform:translateY(0)}
.btn-main:disabled,.btn-ghost:disabled{opacity:.5;transform:none;box-shadow:none;cursor:not-allowed}

/* ============ 通用区块 ============ */
.section{padding:72px 0}
.section-tight{padding:52px 0}
.section-head{max-width:720px;margin-bottom:36px}
.section-head h2{font-size:28px;margin-bottom:12px}
.section-head p{color:var(--ink-2);font-size:15px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-deep);
  letter-spacing:1px;margin-bottom:10px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad)}

/* ============ 时间轴 ============ */
.timeline{position:relative;max-width:900px}
.timeline::before{
  content:"";position:absolute;left:31px;top:12px;bottom:40px;width:2px;
  border-radius:2px;background:var(--grad);opacity:.55;
}
.tl-item{position:relative;padding-left:96px;padding-bottom:28px}
.tl-item:last-child{padding-bottom:0}
.tl-num{
  position:absolute;left:0;top:0;width:64px;height:64px;border-radius:18px;
  background:#fff;border:1px solid var(--line);
  display:grid;place-items:center;
  font-size:20px;font-weight:800;color:var(--brand-deep);
  font-variant-numeric:tabular-nums;letter-spacing:.5px;
  box-shadow:var(--shadow-1);transition:border-color var(--trans),box-shadow var(--trans);
}
.tl-item:hover .tl-num{border-color:rgba(108,76,241,.4);box-shadow:var(--shadow-2)}
.tl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 26px;box-shadow:var(--shadow-1);
  transition:transform var(--trans),border-color var(--trans),box-shadow var(--trans);
}
.tl-item:hover .tl-card{transform:translateY(-2px);border-color:rgba(108,76,241,.35);box-shadow:var(--shadow-2)}
.tl-card h3{font-size:19px;margin-bottom:8px}
.tl-card p{color:var(--ink-2);font-size:15px}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:var(--radius-pill);
  background:var(--brand-soft);color:var(--brand-deep);
  font-size:12.5px;font-weight:600;
}
.tag-mint{background:rgba(18,216,160,.12);color:#0B8F6B}
.tag-coral{background:rgba(255,122,77,.13);color:#C94B22}

/* ============ 双栏补充 ============ */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 28px 26px;box-shadow:var(--shadow-1);
  transition:transform var(--trans),border-color var(--trans),box-shadow var(--trans);
}
.panel:hover{transform:translateY(-2px);border-color:rgba(108,76,241,.3);box-shadow:var(--shadow-2)}
.panel-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.panel-icon{
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;
  display:grid;place-items:center;font-size:16px;
  background:var(--brand-soft);color:var(--brand-deep);
}
.panel-icon.mint{background:rgba(18,216,160,.14);color:#0B8F6B}
.panel-head h3{font-size:19px}
.check-list li{
  position:relative;padding-left:26px;color:var(--ink-2);font-size:15px;margin-bottom:12px;
}
.check-list li:last-child{margin-bottom:0}
.check-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:0;font-size:13px;color:var(--mint);
}
.warn-list li{
  position:relative;padding-left:26px;color:var(--ink-2);font-size:15px;margin-bottom:12px;
}
.warn-list li:last-child{margin-bottom:0}
.warn-list li::before{
  content:"\f071";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:0;font-size:13px;color:var(--coral);
}

/* ============ 图文块 ============ */
.feature{
  display:grid;grid-template-columns:.92fr 1.08fr;gap:36px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--shadow-1);
}
.feature-media{border-radius:var(--radius-sm);overflow:hidden;aspect-ratio:4/3}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--trans)}
.feature:hover .feature-media img{transform:scale(1.03)}
.feature-body h2{font-size:26px;margin-bottom:14px}
.feature-body p{color:var(--ink-2);font-size:15px;margin-bottom:14px}
.feature-body p:last-of-type{margin-bottom:0}
.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px}
.mini-cell{
  border:1px solid var(--line);border-radius:14px;padding:14px 16px;background:#FCFBFF;
}
.mini-cell strong{display:block;font-size:20px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--brand-deep)}
.mini-cell span{font-size:13px;color:var(--ink-3)}

/* ============ FAQ ============ */
.acc{max-width:860px}
.acc .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-1);
}
.acc .accordion-button{
  position:relative;background:#fff;color:var(--ink);
  font-size:17px;font-weight:500;padding:20px 56px 20px 24px;box-shadow:none;
}
.acc .accordion-button::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  background-image:none;width:auto;height:auto;font-size:13px;color:var(--ink-3);
  transition:transform var(--trans),color var(--trans);
  position:absolute;right:24px;top:50%;transform:translateY(-50%);
}
.acc .accordion-button:not(.collapsed){color:var(--brand-deep);background:#fff}
.acc .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(180deg);color:var(--brand)}
.acc .accordion-button:focus{box-shadow:none;border-color:transparent}
.acc .accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  border-radius:3px;background:var(--grad);
}
.acc .accordion-body{padding:0 24px 22px;color:var(--ink-2);font-size:15px}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-card);
  background:var(--dark);color:#fff;padding:48px 44px;
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad);
}
.cta-band::after{
  content:"";position:absolute;right:-90px;bottom:-110px;width:320px;height:320px;
  border-radius:50%;background:radial-gradient(circle,rgba(108,76,241,.42),rgba(108,76,241,0) 70%);
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between}
.cta-inner h2{font-size:26px;margin-bottom:10px;color:#fff}
.cta-inner p{color:rgba(255,255,255,.72);font-size:15px;max-width:560px}
.btn-ghost-light{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 26px;border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,.4);background:transparent;color:#fff;
  font-size:15px;font-weight:600;transition:background var(--trans),transform var(--trans);
}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-1px)}

/* ============ Footer ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);margin-top:72px;position:relative}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad)}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;
  padding:56px 0 36px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{box-shadow:none}
.footer-brand strong{color:#fff;font-size:18px}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:320px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;font-weight:600}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a,.footer-links span{font-size:14px;color:rgba(255,255,255,.62)}
.footer-links a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:18px 0 26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12.5px;color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (min-width:992px) and (max-width:1199px){
  .side-rail{width:88px;flex:0 0 88px;padding:20px 12px 12px}
  .brand-text{display:none}
  .rail-head{display:flex;justify-content:center;padding-bottom:14px}
  .side-link{justify-content:center;padding:12px 0}
  .side-link span{display:none}
  .side-link i{font-size:17px}
  .side-link.is-active::before{left:-12px}
  .rail-cta{padding:10px 0}
  .rail-cta span{display:none}
  .rail-copy{display:none}
}

@media (max-width:991.98px){
  .side-rail{display:none}
  .mobile-bar{
    display:flex;align-items:center;justify-content:space-between;
    position:sticky;top:0;z-index:1030;
    padding:12px 20px;background:rgba(255,255,255,.94);
    border-bottom:1px solid var(--line);backdrop-filter:blur(10px);
  }
  .mobile-bar .brand-text small{display:none}
  .menu-btn{
    width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
    background:#fff;color:var(--brand-deep);display:grid;place-items:center;font-size:16px;
    transition:background var(--trans),border-color var(--trans);
  }
  .menu-btn:hover{background:var(--brand-soft);border-color:rgba(108,76,241,.35)}
  .mobile-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:16px 20px}
  .mobile-drawer .offcanvas-body{padding:18px 20px 26px;display:flex;flex-direction:column}
  .mobile-drawer .side-menu{margin-bottom:20px}
  .mobile-drawer .rail-cta{margin-top:auto}
}

@media (max-width:1023.98px){
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero-media{aspect-ratio:16/10}
  .two-col{grid-template-columns:1fr}
  .feature{grid-template-columns:1fr;gap:24px;padding:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
}

@media (max-width:767.98px){
  .shell{padding:0 20px}
  .section{padding:52px 0}
  .section-tight{padding:40px 0}
  .hero-title{font-size:30px}
  .section-head h2{font-size:22px}
  .feature-body h2,.cta-inner h2{font-size:21px}
  .page-hero{padding:22px 0 4px}
  .tl-item{padding-left:72px}
  .tl-num{width:52px;height:52px;border-radius:14px;font-size:17px}
  .timeline::before{left:25px}
  .tl-card{padding:20px 18px}
  .cta-band{padding:32px 22px;border-radius:var(--radius-sm)}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .mini-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:24px;padding:40px 0 28px}
  .footer-bottom{flex-direction:column;gap:8px}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --brand:#6C4CF1;
  --brand-dark:#5638D6;
  --brand-soft:#EDE8FF;
  --mint:#12D8A0;
  --coral:#FF7A4D;
  --grad:linear-gradient(135deg,#6C4CF1 0%,#C13BE8 100%);
  --ink:#1A1530;
  --ink-2:#5A5470;
  --ink-3:#8B85A3;
  --bg:#F7F6FB;
  --card:#FFFFFF;
  --line:#E9E6F3;
  --dark:#17112B;
  --r-card:20px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 1px 2px rgba(26,21,48,.04),0 8px 24px rgba(108,76,241,.07);
  --sh-2:0 2px 4px rgba(26,21,48,.06),0 16px 36px rgba(108,76,241,.14);
  --sidebar-w:248px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;

  --bs-primary:#6C4CF1;
  --bs-primary-rgb:108,76,241;
  --bs-body-font-family:var(--font);
  --bs-body-color:#1A1530;
  --bs-body-bg:#F7F6FB;
  --bs-border-radius:16px;
  --bs-border-color:#E9E6F3;
  --bs-link-color:#6C4CF1;
  --bs-link-hover-color:#5638D6;
  --bs-font-sans-serif:var(--font);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease}
button,input{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid rgba(193,59,232,.45);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink)}

/* ============ 布局骨架 ============ */
.app-shell{display:flex;align-items:flex-start;min-height:100vh}
.app-body{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;min-height:100vh}
.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1400px){.shell{max-width:1280px}}

/* ============ 左侧 App Shell 导航 ============ */
.app-sidebar{
  position:sticky;top:0;
  height:100vh;
  width:var(--sidebar-w);
  flex:0 0 var(--sidebar-w);
  background:#fff;
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:26px 16px 20px;
  overflow-y:auto;
  z-index:1040;
}
.app-sidebar::-webkit-scrollbar{width:6px}
.app-sidebar::-webkit-scrollbar-thumb{background:rgba(108,76,241,.18);border-radius:6px}
.sidebar-logo{display:flex;align-items:center;gap:12px;padding:4px 10px 22px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:var(--grad);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;box-shadow:0 8px 18px rgba(108,76,241,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.3;min-width:0}
.brand-text strong{font-size:17px;letter-spacing:.5px;color:var(--ink)}
.brand-text small{font-size:12px;color:var(--ink-3);letter-spacing:.4px}
.side-menu{display:flex;flex-direction:column;gap:6px;margin-top:6px}
.side-link{
  position:relative;
  display:flex;align-items:center;gap:12px;
  padding:12px 14px;border-radius:12px;
  color:var(--ink-2);font-size:15px;
  transition:background .22s ease,color .22s ease,transform .22s ease;
}
.side-link i{width:20px;flex:0 0 20px;text-align:center;font-size:15px}
.side-link:hover{background:#F4F1FF;color:var(--brand-dark)}
.side-link.is-active{background:var(--brand-soft);color:var(--brand-dark);font-weight:600}
.side-link.is-active::before{
  content:"";position:absolute;left:-16px;top:50%;
  transform:translateY(-50%);
  width:3px;height:22px;border-radius:0 3px 3px 0;background:var(--grad);
}
.side-foot{margin-top:auto;padding-top:24px;display:flex;flex-direction:column;gap:12px;flex:0 0 auto}
.side-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 16px;border-radius:999px;
  background:var(--grad);color:#fff;font-size:14px;font-weight:600;
  box-shadow:0 10px 22px rgba(108,76,241,.24);
  transition:filter .22s ease,transform .22s ease,box-shadow .22s ease;
}
.side-cta:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 14px 28px rgba(108,76,241,.32);color:#fff}
.side-note{font-size:12px;line-height:1.7;color:var(--ink-3);margin:0;padding:0 4px}

/* ============ 移动端顶部栏 ============ */
.mobile-topbar{
  display:none;
  position:sticky;top:0;z-index:1035;
  align-items:center;justify-content:space-between;
  padding:12px 20px;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.mobile-topbar .sidebar-logo{padding:0}
.nav-toggle{
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--brand-dark);
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;
  transition:background .22s ease,border-color .22s ease;
}
.nav-toggle:hover{background:var(--brand-soft);border-color:rgba(108,76,241,.35)}

/* ============ 抽屉 ============ */
.offcanvas{--bs-offcanvas-width:84%;max-width:340px;background:#fff}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.offcanvas-title{font-size:16px;font-weight:700;color:var(--ink)}
.offcanvas-body{padding:18px 20px 28px}

/* ============ 按钮 ============ */
.btn-main{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 26px;border-radius:999px;border:0;
  background:var(--grad);color:#fff;font-weight:600;font-size:15px;
  box-shadow:0 12px 26px rgba(108,76,241,.26);
  transition:filter .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-main:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 16px 32px rgba(108,76,241,.34);color:#fff}
.btn-main:disabled{opacity:.5;transform:none}
.btn-outline-main{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 24px;border-radius:999px;
  background:#fff;border:1px solid rgba(108,76,241,.45);
  color:var(--brand-dark);font-weight:600;font-size:15px;
  transition:background .22s ease,transform .22s ease,border-color .22s ease;
}
.btn-outline-main:hover{background:var(--brand-soft);transform:translateY(-1px);border-color:rgba(108,76,241,.7);color:var(--brand-dark)}
.btn-ghost-light{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 24px;border-radius:999px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.28);
  color:#fff;font-weight:600;font-size:15px;
  transition:background .22s ease,transform .22s ease;
}
.btn-ghost-light:hover{background:rgba(255,255,255,.16);transform:translateY(-1px);color:#fff}

/* ============ 通用板块 ============ */
.section{padding:72px 0}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{font-size:28px;line-height:1.35;margin:14px 0 12px;letter-spacing:-.3px;font-weight:800}
.section-head p{margin:0;color:var(--ink-2);font-size:16px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);
  font-size:13px;font-weight:600;letter-spacing:.3px;
}

/* ============ 首屏 Hero ============ */
.hero{padding:52px 0 34px}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:44px;align-items:center}
.hero h1{font-size:40px;line-height:1.25;margin:18px 0 14px;letter-spacing:-.5px;font-weight:800}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:17px;line-height:1.75;color:var(--ink-2);max-width:520px;margin:0 0 26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-hint{margin:18px 0 0;font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:8px}
.hero-hint i{color:var(--mint)}
.hero-media{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-2)}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(23,17,43,.38) 0%,rgba(108,76,241,.16) 100%)}
.hero-float{
  position:absolute;left:20px;bottom:20px;z-index:2;
  background:rgba(255,255,255,.95);border-radius:14px;
  padding:12px 16px;font-size:13px;line-height:1.6;color:var(--ink-2);
  box-shadow:var(--sh-1);max-width:260px;
}
.hero-float strong{display:block;color:var(--ink);font-size:14px;margin-bottom:2px}

/* ============ 数据徽章 ============ */
.stats{padding:6px 0 4px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stat{
  display:flex;align-items:baseline;gap:10px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:14px 20px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.stat:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(108,76,241,.3)}
.stat b{
  font-size:28px;font-weight:800;line-height:1;font-variant-numeric:tabular-nums;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  white-space:nowrap;
}
.stat span{font-size:13px;color:var(--ink-2);line-height:1.4}

/* ============ 大卡矩阵 ============ */
.matrix{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:172px;gap:24px}
.mcard{
  position:relative;overflow:hidden;
  border-radius:var(--r-card);border:1px solid var(--line);background:#fff;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.mcard:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(108,76,241,.35)}
.mcard img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.mcard:hover img{transform:scale(1.03)}
.mcard .veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(23,17,43,.05) 22%,rgba(23,17,43,.84) 100%)}
.mcard .mc-body{position:absolute;left:0;right:0;bottom:0;padding:18px;z-index:2;color:#fff}
.mcard h3{font-size:16px;line-height:1.45;margin:8px 0 0;font-weight:700;color:#fff}
.mcard p{
  margin:8px 0 0;font-size:13.5px;line-height:1.65;color:rgba(255,255,255,.82);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.mc-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  background:rgba(255,255,255,.18);font-size:12px;font-weight:600;letter-spacing:.3px;
}
.mcard.big{grid-column:span 2;grid-row:span 2}
.mcard.big .mc-body{padding:26px}
.mcard.big h3{font-size:24px;line-height:1.35;letter-spacing:-.2px}
.mcard.big p{font-size:14.5px;-webkit-line-clamp:3;max-width:88%}

/* ============ 节奏说明 ============ */
.rhythm{display:grid;grid-template-columns:1.24fr .76fr;gap:32px;align-items:start}
.rhythm-list{display:flex;flex-direction:column;gap:14px}
.rhythm-item{
  display:flex;gap:18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px 22px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rhythm-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(108,76,241,.3)}
.ri-time{
  flex:0 0 auto;min-width:86px;
  font-size:14px;font-weight:800;color:var(--brand-dark);
  font-variant-numeric:tabular-nums;
}
.rhythm-item h3{font-size:16px;margin:0 0 4px;line-height:1.5}
.rhythm-item p{margin:0;font-size:14px;color:var(--ink-2);line-height:1.75}
.rhythm-aside{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.rhythm-aside img{width:100%;aspect-ratio:16/10;object-fit:cover}
.rhythm-aside .ra-body{padding:22px}
.rhythm-aside h3{font-size:17px;margin-bottom:8px}
.rhythm-aside p{margin:0;font-size:14px;color:var(--ink-2);line-height:1.8}
.ra-list{list-style:none;margin:16px 0 0;padding:0;display:flex;flex-direction:column;gap:10px}
.ra-list li{position:relative;padding-left:18px;font-size:13.5px;color:var(--ink-2);line-height:1.7}
.ra-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;
  background:var(--grad);
}

/* ============ 标签墙 ============ */
.tagwall{display:flex;flex-wrap:wrap;gap:12px}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--ink-2);
  font-size:14px;box-shadow:var(--sh-1);
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.tag i{font-size:12px;color:var(--brand)}
.tag:hover{background:var(--brand-soft);border-color:rgba(108,76,241,.35);color:var(--brand-dark);transform:translateY(-2px);box-shadow:var(--sh-2)}
.tag.is-warm i{color:var(--coral)}
.tag.is-mint i{color:var(--mint)}

/* ============ FAQ ============ */
.faq .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  margin-bottom:14px;overflow:hidden;box-shadow:var(--sh-1);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq .accordion-item:last-child{margin-bottom:0}
.faq .accordion-item:hover{border-color:rgba(108,76,241,.3)}
.faq .accordion-button{
  position:relative;
  background:#fff;color:var(--ink);font-size:17px;font-weight:500;
  padding:20px 56px 20px 26px;box-shadow:none;line-height:1.6;
}
.faq .accordion-button:not(.collapsed){color:var(--brand-dark);background:#fff;box-shadow:none;font-weight:600}
.faq .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq .accordion-button::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;
  border-radius:0 3px 3px 0;background:var(--grad);
  opacity:0;transition:opacity .22s ease;
}
.faq .accordion-button:not(.collapsed)::before{opacity:1}
.faq .accordion-button::after{
  width:auto;height:auto;margin-left:auto;
  background-image:none;
  content:"\f078";
  font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--ink-3);
  position:absolute;right:24px;top:50%;transform:translateY(-50%);
  transition:transform .25s ease,color .25s ease;
}
.faq .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(180deg);color:var(--brand)}
.faq .accordion-body{padding:0 26px 22px;font-size:15px;color:var(--ink-2);line-height:1.85}

/* ============ CTA ============ */
.cta-wrap{padding:8px 0 72px}
.cta-card{
  position:relative;overflow:hidden;
  background:var(--dark);border-radius:24px;
  padding:52px 48px;color:#fff;
  box-shadow:0 24px 60px rgba(23,17,43,.28);
}
.cta-card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad)}
.cta-card::after{
  content:"";position:absolute;right:-120px;bottom:-140px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,76,241,.45) 0%,rgba(108,76,241,0) 70%);
}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:40px;align-items:center}
.cta-card h2{font-size:28px;line-height:1.4;color:#fff;margin:14px 0 12px;letter-spacing:-.3px}
.cta-card p{color:rgba(255,255,255,.72);font-size:15.5px;line-height:1.85;margin:0 0 24px;max-width:520px}
.cta-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.1);color:#fff;font-size:13px;font-weight:600;
  border:1px solid rgba(255,255,255,.16);
}
.cta-form{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.cta-form label{display:block;font-size:13px;color:rgba(255,255,255,.66);margin-bottom:8px}
.cta-field{flex:1 1 240px;min-width:0}
.cta-form input{
  width:100%;padding:13px 16px;border-radius:12px;
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.08);
  color:#fff;
  transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.cta-form input::placeholder{color:rgba(255,255,255,.5)}
.cta-form input:focus{
  outline:none;background:rgba(255,255,255,.12);
  border-color:rgba(193,59,232,.75);
  box-shadow:0 0 0 4px rgba(108,76,241,.3);
}
.cta-submit{
  align-self:flex-end;
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 28px;border-radius:999px;border:0;
  background:var(--grad);color:#fff;font-weight:600;
  box-shadow:0 12px 26px rgba(108,76,241,.34);
  transition:filter .22s ease,transform .22s ease;
}
.cta-submit:hover{filter:brightness(1.06);transform:translateY(-1px)}
.cta-note{font-size:12px;color:rgba(255,255,255,.5);margin:0}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;margin-top:auto;
  background:var(--dark);color:rgba(255,255,255,.72);
  padding:64px 0 28px;
}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand strong{color:#fff;font-size:17px;letter-spacing:.5px}
.footer-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px;font-size:15px}
.footer-col h4{font-size:15px;color:#fff;margin:0 0 16px;font-weight:700}
.footer-col p{font-size:14px;line-height:1.85;margin:0;color:rgba(255,255,255,.6)}
.footer-links{display:flex;flex-direction:column;gap:10px;font-size:14px}
.footer-links a{color:rgba(255,255,255,.7)}
.footer-links a:hover{color:#fff}
.footer-links span{color:rgba(255,255,255,.55);font-size:13.5px}
.footer-bottom{
  margin-top:44px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (min-width:992px) and (max-width:1199.98px){
  :root{--sidebar-w:88px}
  .app-sidebar{padding:22px 12px 18px}
  .sidebar-logo{justify-content:center;padding:4px 0 20px}
  .brand-text{display:none}
  .side-link{justify-content:center;padding:12px 0}
  .side-link span{display:none}
  .side-link.is-active::before{left:-12px}
  .side-cta{width:46px;height:46px;padding:0;border-radius:50%}
  .side-cta span{display:none}
  .side-note{display:none}
}

@media (max-width:991.98px){
  .app-sidebar{display:none}
  .mobile-topbar{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .hero{padding:36px 0 24px}
  .hero-media{order:-1}
  .hero h1{font-size:32px}
  .section{padding:56px 0}
  .matrix{grid-template-columns:repeat(2,1fr);grid-auto-rows:186px}
  .mcard.big{grid-column:span 2;grid-row:span 2}
  .rhythm{grid-template-columns:1fr;gap:24px}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-card{padding:38px 28px}
  .cta-card::after{display:none}
}

@media (max-width:767.98px){
  .shell{padding:0 20px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:12px}
  .stat{padding:12px 16px;border-radius:16px;flex-direction:column;align-items:flex-start;gap:4px}
  .stat b{font-size:24px}
  .section{padding:48px 0}
  .section-head h2{font-size:22px}
  .hero h1{font-size:30px}
  .hero-lead{font-size:15.5px}
  .mcard.big h3{font-size:20px}
  .mcard.big .mc-body{padding:20px}
  .mcard.big p{max-width:100%;-webkit-line-clamp:2}
  .rhythm-item{flex-direction:column;gap:6px;padding:16px 18px}
  .ri-time{min-width:0}
  .cta-card h2{font-size:23px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}

@media (max-width:520px){
  .matrix{grid-template-columns:1fr;grid-auto-rows:210px}
  .mcard.big{grid-column:span 1;grid-row:span 1}
  .hero-actions .btn-main,
  .hero-actions .btn-outline-main{width:100%;justify-content:center}
  .hero-float{left:14px;right:14px;bottom:14px;max-width:none}
  .tag{padding:9px 14px;font-size:13px}
  .footer-grid{grid-template-columns:1fr}
}