/* roulang page: index */
:root{
  --brand:#5B3BF5;
  --brand-deep:#4526D6;
  --brand-soft:#EDE8FF;
  --magenta:#A23BEC;
  --coral:#FF6B4A;
  --gold:#FFB324;
  --teal:#12B69A;
  --grad:linear-gradient(120deg,#5B3BF5 0%,#A23BEC 58%,#FF6B4A 100%);
  --grad-soft:linear-gradient(135deg,#F1EDFF 0%,#FFF0EA 100%);
  --bg:#F7F5FF;
  --card:#FFFFFF;
  --dark:#150F33;
  --text:#1B1636;
  --muted:#6A6484;
  --weak:#9A94B0;
  --line:#E9E4FF;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:24px;
  --r-hero:28px;
  --sh1:0 2px 8px rgba(91,59,245,.06);
  --sh2:0 10px 30px rgba(91,59,245,.10);
  --sh3:0 20px 50px rgba(91,59,245,.16);
  --sidebar:240px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --bs-primary:#5B3BF5;
  --bs-primary-rgb:91,59,245;
  --bs-body-color:#1B1636;
  --bs-body-bg:#F7F5FF;
  --bs-border-radius:.75rem;
  --bs-link-color:#5B3BF5;
  --bs-link-hover-color:#4526D6;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;object-fit:cover}
a{text-decoration:none;color:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-.4px;line-height:1.35}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
a:focus-visible,button:focus-visible,.nav-item-link:focus-visible{
  outline:none;
  box-shadow:0 0 0 3px rgba(91,59,245,.30);
  border-radius:var(--r-sm);
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 侧边导航 ============ */
.app-sidebar{
  position:fixed;top:0;left:0;bottom:0;
  width:var(--sidebar);
  background:#fff;
  border-right:1px solid var(--line);
  padding:26px 18px 22px;
  display:flex;flex-direction:column;
  z-index:1045;
}
.brand{display:flex;align-items:flex-start;gap:12px;margin-bottom:30px}
.brand-mark{
  flex:0 0 44px;width:44px;height:44px;border-radius:14px;
  background:var(--grad);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:19px;
  box-shadow:0 8px 18px rgba(91,59,245,.28);
}
.brand-text{display:flex;flex-direction:column;gap:4px;min-width:0}
.brand-name{font-size:18px;font-weight:700;line-height:1.25;color:var(--text)}
.brand-sub{font-size:12px;color:var(--weak);line-height:1.4}
.side-nav{display:flex;flex-direction:column;gap:6px}
.nav-item-link{
  position:relative;
  display:flex;align-items:center;gap:12px;
  height:46px;padding:0 14px;
  border-radius:12px;
  font-size:15px;font-weight:500;
  color:var(--muted);
  transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);
}
.nav-item-link i{font-size:18px;width:18px;text-align:center;flex:0 0 18px}
.nav-item-link:hover{background:var(--brand-soft);color:var(--brand)}
.nav-item-link.active{
  background:var(--grad);color:#fff;
  box-shadow:0 10px 22px rgba(91,59,245,.26);
}
.nav-item-link.active::before{
  content:"";position:absolute;left:-18px;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:0 3px 3px 0;background:var(--grad);
}
.side-sub{margin-top:22px;padding-top:18px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:10px}
.side-sub a{font-size:13px;color:var(--weak);transition:color .25s var(--ease)}
.side-sub a:hover{color:var(--brand)}
.side-cta{margin-top:auto;width:100%;justify-content:center}

/* ============ 按钮 ============ */
.btn-grad{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:12px;border:0;
  background:var(--grad);color:#fff;
  font-size:15px;font-weight:600;line-height:1.2;
  box-shadow:0 10px 24px rgba(91,59,245,.24);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),filter .25s var(--ease),color .25s var(--ease);
  cursor:pointer;
}
.btn-grad:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 16px 34px rgba(91,59,245,.32)}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12.5px 26.5px;border-radius:12px;
  border:1.5px solid var(--brand);background:#fff;color:var(--brand);
  font-size:15px;font-weight:600;line-height:1.2;
  transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
}
.btn-outline:hover{background:var(--brand);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(91,59,245,.24)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--text);font-size:14px;font-weight:600;
  transition:border-color .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-cta-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:12px;border:0;
  background:#fff;color:var(--brand);
  font-size:15px;font-weight:700;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.btn-cta-light:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(21,15,51,.28);color:var(--brand-deep)}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--brand);
  transition:gap .25s var(--ease),color .25s var(--ease);
}
.text-link:hover{gap:14px;color:var(--brand-deep)}

/* ============ 主内容区 ============ */
.app-main{margin-left:var(--sidebar);min-height:100vh;display:flex;flex-direction:column}
.section{padding:96px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:48px;
}
.section-head h2{font-size:34px;font-weight:700;letter-spacing:-.6px}
.section-sub{margin-top:12px;font-size:15px;color:var(--muted);max-width:640px}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  background:var(--grad-soft);
  padding:76px 0 84px;
  border-bottom:1px solid var(--line);
}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;pointer-events:none}
.hero::before{width:560px;height:560px;top:-220px;right:-140px;background:radial-gradient(circle,rgba(162,59,236,.20),transparent 65%)}
.hero::after{width:460px;height:460px;bottom:-200px;left:6%;background:radial-gradient(circle,rgba(255,107,74,.18),transparent 65%)}
.hero .container{position:relative;z-index:2}
.pill-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;
  background:#fff;border:1px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  font-size:12px;font-weight:700;color:var(--brand);
  letter-spacing:.4px;
}
.hero-title{
  margin-top:22px;
  font-size:48px;font-weight:800;line-height:1.22;letter-spacing:-1px;
  color:var(--text);
}
.hero-sub{margin-top:20px;font-size:17px;color:var(--muted);max-width:560px;line-height:1.85}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.stat-row{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap}
.stat-card{
  flex:1 1 150px;min-width:140px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:16px 18px;box-shadow:var(--sh1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--sh2)}
.stat-num{
  display:block;font-size:24px;font-weight:800;color:var(--brand);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.stat-label{display:block;font-size:12px;color:var(--muted);margin-top:6px;line-height:1.5}
.hero-visual{
  position:relative;border-radius:var(--r-hero);overflow:hidden;
  box-shadow:var(--sh3);
}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover}
.float-card{
  position:absolute;left:20px;bottom:20px;
  display:flex;flex-direction:column;gap:2px;
  background:rgba(255,255,255,.94);
  border-radius:16px;padding:14px 18px;
  box-shadow:var(--sh2);
  backdrop-filter:blur(4px);
}
.float-num{font-size:22px;font-weight:800;color:var(--gold);font-variant-numeric:tabular-nums;line-height:1.2}
.float-label{font-size:12px;color:var(--muted)}

/* ============ 能力横条 ============ */
.cap-strip{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  box-shadow:var(--sh1);
  padding:28px 8px;margin-top:-52px;position:relative;z-index:3;
}
.cap-item{padding:8px 22px;border-right:1px solid var(--line)}
.cap-item:last-child{border-right:0}
.cap-icon{
  width:38px;height:38px;border-radius:12px;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:16px;
  margin-bottom:12px;
}
.cap-title{font-size:16px;font-weight:600;margin-bottom:6px}
.cap-desc{font-size:13px;color:var(--muted);line-height:1.7}

/* ============ 步骤条 ============ */
.step-row{position:relative;display:flex;justify-content:space-between;gap:20px}
.step-row::before{
  content:"";position:absolute;left:14%;right:14%;top:28px;
  border-top:2px dashed #CDBFFB;
}
.step-item{position:relative;z-index:1;flex:1;max-width:250px;text-align:center;margin:0 auto}
.step-num{
  display:flex;align-items:center;justify-content:center;
  width:56px;height:56px;margin:0 auto 20px;
  border-radius:50%;border:2px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  font-size:20px;font-weight:800;color:var(--brand-deep);
  font-variant-numeric:tabular-nums;
  box-shadow:var(--sh1);
}
.step-title{font-size:18px;font-weight:600;margin-bottom:8px}
.step-desc{font-size:14px;color:var(--muted);line-height:1.75}

/* ============ 案例证明 ============ */
.case-visual{position:relative;border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh2)}
.case-visual img{width:100%;aspect-ratio:16/10;object-fit:cover}
.case-badge{
  position:absolute;left:18px;bottom:18px;
  background:rgba(255,255,255,.86);
  color:var(--brand);font-size:12px;font-weight:700;
  padding:8px 14px;border-radius:10px;
}
.quote-card{
  position:relative;
  background:#fff;border:1px solid var(--line);
  border-left:4px solid var(--brand);
  border-radius:0 20px 20px 0;
  padding:22px 24px;
  box-shadow:var(--sh1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.quote-card + .quote-card{margin-top:20px}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--sh2)}
.quote-text{font-size:15px;line-height:1.85;color:var(--text)}
.quote-foot{display:flex;align-items:center;gap:12px;margin-top:18px}
.avatar{
  width:36px;height:36px;border-radius:50%;
  background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;flex:0 0 36px;
}
.quote-meta{font-size:13px;color:var(--weak)}

/* ============ FAQ ============ */
.faq-side h2{font-size:34px;font-weight:700;letter-spacing:-.6px}
.faq-side p{margin-top:14px;font-size:15px;color:var(--muted);max-width:320px}
.faq-side .btn-ghost{margin-top:24px}
.accordion-item{
  border:1px solid var(--line) !important;
  border-radius:16px !important;
  overflow:hidden;background:#fff;
  box-shadow:var(--sh1);
  margin-bottom:12px;
}
.accordion-item:last-child{margin-bottom:0}
.accordion-button{
  position:relative;
  font-size:16px;font-weight:600;color:var(--text);
  background:#fff;padding:20px 22px;
  border-radius:16px !important;
  box-shadow:none !important;
  transition:background .25s var(--ease),color .25s var(--ease);
}
.accordion-button:not(.collapsed){background:#F7F5FF;color:var(--brand)}
.accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;
  border-radius:0 4px 4px 0;background:var(--grad);
}
.accordion-button::after{
  content:"";background-image:none !important;
  width:10px;height:10px;flex:0 0 10px;
  border-right:2px solid var(--brand);
  border-bottom:2px solid var(--brand);
  transform:rotate(45deg);
  transition:transform .25s var(--ease);
  margin-left:auto;
}
.accordion-button:not(.collapsed)::after{transform:rotate(-135deg)}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(91,59,245,.20) !important;z-index:2}
.accordion-body{padding:4px 22px 22px;font-size:15px;color:var(--muted);line-height:1.85;background:#fff}

/* ============ 内容列表 ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);
  border-radius:20px;overflow:hidden;
  box-shadow:var(--sh1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh3)}
.post-thumb{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--grad-soft)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-cat{
  position:absolute;top:12px;left:12px;
  background:rgba(255,255,255,.86);color:var(--brand);
  font-size:12px;font-weight:600;
  padding:4px 10px;border-radius:10px;
}
.post-body{display:flex;flex-direction:column;flex:1;padding:18px 18px 16px}
.post-title{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  min-height:51px;
}
.post-summary{
  margin-top:10px;font-size:14px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--weak);
}
.post-arrow{color:var(--brand);transition:transform .25s var(--ease)}
.post-card:hover .post-arrow{transform:translateX(4px)}
.empty-state{
  border:2px dashed var(--line);border-radius:20px;
  min-height:180px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:12px;
  color:var(--weak);font-size:14px;background:#fff;
}
.empty-state i{font-size:26px;color:#CDBFFB}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--grad);
  border-radius:var(--r-hero);
  padding:56px 48px;
  color:#fff;
  box-shadow:0 24px 55px rgba(91,59,245,.28);
}
.cta-band::before,.cta-band::after{content:"";position:absolute;border-radius:50%;pointer-events:none}
.cta-band::before{width:320px;height:320px;top:-140px;left:-80px;background:rgba(255,255,255,.14)}
.cta-band::after{width:260px;height:260px;bottom:-140px;right:22%;background:rgba(255,255,255,.10)}
.cta-band .row{position:relative;z-index:2}
.cta-title{font-size:34px;font-weight:700;letter-spacing:-.6px;line-height:1.3}
.cta-sub{margin-top:14px;font-size:15px;color:rgba(255,255,255,.86);max-width:520px}
.cta-band .btn-cta-light{margin-top:28px}
.qr-card{
  background:#fff;border-radius:20px;padding:24px;
  display:flex;flex-direction:column;align-items:center;gap:12px;
  box-shadow:0 18px 40px rgba(21,15,51,.22);
}
.qr-card i{font-size:56px;color:var(--brand)}
.qr-card span{font-size:13px;color:var(--muted);font-weight:600}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--dark);color:rgba(255,255,255,.72);
  padding:64px 0 26px;
  margin-top:auto;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand-mark{box-shadow:none}
.footer-name{font-size:17px;font-weight:700;color:#fff;line-height:1.3}
.footer-desc{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.62);max-width:320px}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.3px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.66);transition:color .25s var(--ease)}
.footer-links a:hover{color:#B9A8FF}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.66);line-height:1.9}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.48);
}

/* ============ 移动端导航 ============ */
.mobile-topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:60px;
  background:#fff;border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;
  padding:0 16px;z-index:1046;
  transition:box-shadow .25s var(--ease);
}
.mobile-topbar.scrolled{box-shadow:var(--sh1)}
.brand-mini{display:flex;align-items:center;gap:10px}
.brand-mark.sm{width:34px;height:34px;border-radius:11px;font-size:15px;flex:0 0 34px}
.brand-name-mini{font-size:15px;font-weight:700;color:var(--text)}
.hamburger{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--brand);font-size:17px;
  display:flex;align-items:center;justify-content:center;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.hamburger:hover{border-color:var(--brand);background:var(--brand-soft)}
.mobile-nav{
  width:82vw !important;max-width:320px;
  border-radius:24px 0 0 24px;
  border:0;background:#fff;padding:22px 18px;
}
.mobile-nav .offcanvas-header{padding:0 0 18px;border-bottom:1px solid var(--line);margin-bottom:18px}
.mobile-nav .nav-item-link{height:52px}
.mobile-nav .nav-group-title{
  font-size:12px;color:var(--weak);letter-spacing:1px;margin:22px 0 10px;padding-left:14px;
}
.mobile-nav .side-cta{margin-top:26px}

/* ============ 响应式 ============ */
@media (min-width:1400px){
  :root{--sidebar:260px}
  .post-grid{grid-template-columns:repeat(4,1fr)}
  .container{max-width:1200px}
}
@media (max-width:1199.98px){
  :root{--sidebar:212px}
  .post-grid{grid-template-columns:repeat(3,1fr)}
  .hero-title{font-size:40px}
  .cta-band{padding:48px 36px}
}
@media (max-width:991.98px){
  .app-sidebar{display:none}
  .mobile-topbar{display:flex}
  .app-main{margin-left:0;padding-top:60px}
  .section{padding:64px 0}
  .hero{padding:52px 0 64px}
  .hero-title{font-size:34px}
  .hero-visual{margin-top:8px}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:36px}
  .section-head h2,.faq-side h2{font-size:28px}
  .cap-strip{margin-top:24px}
  .cap-item{border-right:0;border-bottom:1px solid var(--line);padding:18px 22px}
  .cap-item:last-child{border-bottom:0}
  .cta-title{font-size:28px}
}
@media (max-width:767.98px){
  .step-row{flex-direction:column;gap:28px}
  .step-row::before{
    left:27px;right:auto;top:10px;bottom:10px;
    width:2px;height:auto;border-top:0;border-left:2px dashed #CDBFFB;
  }
  .step-item{
    max-width:none;margin:0;display:flex;align-items:flex-start;
    gap:20px;text-align:left;
  }
  .step-num{margin:0;flex:0 0 56px}
  .case-visual{margin-bottom:20px}
  .quote-card + .quote-card{margin-top:16px}
}
@media (max-width:575.98px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .hero{padding:42px 0 52px}
  .hero-title{font-size:32px;letter-spacing:-.6px}
  .hero-sub{font-size:15.5px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn-grad,.hero-actions .btn-outline{width:100%}
  .stat-row{flex-wrap:nowrap;overflow-x:auto;padding-bottom:8px;scroll-snap-type:x mandatory}
  .stat-card{flex:0 0 72%;scroll-snap-align:start}
  .post-grid{grid-template-columns:1fr;gap:16px}
  .cta-band{padding:36px 22px;border-radius:24px}
  .cta-title{font-size:24px}
  .cta-band .btn-cta-light{width:100%}
  .qr-card{padding:18px}
  .footer-links{gap:8px}
  .footer-bottom{flex-direction:column}
}

/* roulang page: article */
:root{
  --bs-primary:#5B3BF5;
  --bs-body-color:#1B1636;
  --bs-body-bg:#F7F5FF;
  --bs-link-color:#5B3BF5;
  --bs-link-hover-color:#4526D6;
  --bs-border-radius:12px;
  --brand:#5B3BF5;
  --brand-dark:#4526D6;
  --brand-soft:#EDE8FF;
  --brand-2:#A23BEC;
  --warm:#FF6B4A;
  --gold:#FFB324;
  --mint:#12B69A;
  --grad:linear-gradient(120deg,#5B3BF5 0%,#A23BEC 58%,#FF6B4A 100%);
  --soft-grad:linear-gradient(135deg,#F1EDFF 0%,#FFF0EA 100%);
  --bg:#F7F5FF;
  --card:#FFFFFF;
  --dark:#150F33;
  --text:#1B1636;
  --muted:#6A6484;
  --faint:#9A94B0;
  --line:#E9E4FF;
  --r-sm:16px;
  --r-md:20px;
  --r-lg:24px;
  --r-btn:12px;
  --sh1:0 2px 8px rgba(91,59,245,.06);
  --sh2:0 10px 30px rgba(91,59,245,.10);
  --sh3:0 20px 50px rgba(91,59,245,.16);
  --ease:.25s cubic-bezier(.22,.61,.36,1);
  --side:240px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),background var(--ease)}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4{margin:0;letter-spacing:-.3px;color:var(--text)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(91,59,245,.30)}
.container{max-width:1200px;padding-left:24px;padding-right:24px}

/* ---------- 左侧导航壳 ---------- */
.app-shell{
  position:fixed;left:0;top:0;bottom:0;width:var(--side);
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:26px 18px 22px;z-index:1045;
}
.brand-block{display:flex;align-items:flex-start;gap:12px;padding:0 6px 22px}
.brand-mark{
  width:44px;height:44px;flex:0 0 44px;border-radius:14px;
  background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:18px;box-shadow:var(--sh2);
}
.brand-text{font-size:18px;font-weight:700;line-height:1.25;color:var(--text)}
.brand-text small{display:block;font-size:12px;font-weight:400;color:var(--faint);letter-spacing:0;margin-top:4px}
.side-nav{display:flex;flex-direction:column;gap:6px}
.nav-item-link{
  display:flex;align-items:center;gap:10px;
  height:46px;padding:0 14px;border-radius:12px;
  font-size:15px;font-weight:500;color:var(--muted);
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.nav-item-link i{font-size:16px;width:18px;text-align:center}
.nav-item-link:hover{background:var(--brand-soft);color:var(--brand);transform:translateX(2px)}
.nav-item-link.active{background:var(--grad);color:#fff;box-shadow:var(--sh2)}
.nav-item-link.active i{color:#fff}
.side-secondary{margin-top:18px;padding:16px 14px 0;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:8px}
.side-secondary a{font-size:13px;color:var(--faint)}
.side-secondary a:hover{color:var(--brand)}
.side-cta{
  margin-top:auto;display:flex;align-items:center;justify-content:center;gap:8px;
  height:48px;border-radius:12px;background:var(--grad);color:#fff;
  font-size:15px;font-weight:600;box-shadow:var(--sh2);
  transition:filter var(--ease),transform var(--ease),box-shadow var(--ease);
}
.side-cta:hover{color:#fff;filter:brightness(1.06);transform:translateY(-2px);box-shadow:var(--sh3)}

/* ---------- 移动端顶栏与抽屉 ---------- */
.mobile-topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:1050;
  background:#fff;border-bottom:1px solid var(--line);
  align-items:center;gap:12px;padding:0 16px;
}
.mobile-topbar .hamburger{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--brand);font-size:17px;
  display:flex;align-items:center;justify-content:center;
}
.mobile-topbar .mobile-brand{font-size:16px;font-weight:700;color:var(--text)}
.offcanvas.offcanvas-start{
  width:82vw;max-width:320px;background:#fff;
  border-radius:0 24px 24px 0;border:none;padding:22px 18px;
}
.offcanvas .drawer-title{font-size:12px;letter-spacing:1px;color:var(--faint);margin:0 0 10px;font-weight:600}
.offcanvas .nav-item-link{height:52px;font-size:16px}
.drawer-brand{display:flex;align-items:center;gap:12px;margin-bottom:20px}

/* ---------- 主区域 ---------- */
.main-area{margin-left:var(--side);min-height:100vh;display:flex;flex-direction:column}
.page-pad{padding:44px 0 72px}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--faint);margin-bottom:22px}
.crumb a{color:var(--faint)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#CFC7EA}
.crumb .now{color:var(--muted);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头部 ---------- */
.article-head{margin-bottom:26px}
.cat-pill{
  display:inline-flex;align-items:center;gap:6px;
  height:30px;padding:0 14px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);
  font-size:12.5px;font-weight:600;margin-bottom:16px;
}
.article-head h1{font-size:34px;font-weight:800;line-height:1.35;letter-spacing:-.6px;margin-bottom:14px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#CFC7EA}
.article-cover{margin-top:24px}
.article-cover .cover-box{
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh2);
  background:var(--grad);aspect-ratio:16/9;
}
.article-cover img{width:100%;height:100%;object-fit:cover}

/* ---------- 正文 ---------- */
.article-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh1);padding:38px 42px;
  font-size:16.8px;line-height:1.9;color:var(--text);word-wrap:break-word;
}
.article-body p{margin:0 0 1.4em}
.article-body h2{
  position:relative;font-size:24px;font-weight:700;line-height:1.45;
  margin:40px 0 16px;padding-left:16px;letter-spacing:-.4px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;width:4px;height:20px;border-radius:3px;background:var(--grad);
}
.article-body h3{font-size:19px;font-weight:600;margin:28px 0 12px}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-dark)}
.article-body img{border-radius:16px;margin:24px auto;box-shadow:var(--sh1)}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:0}
.article-body li{position:relative;padding-left:20px;margin-bottom:8px}
.article-body li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--grad);
}
.article-body ol{counter-reset:odx}
.article-body ol li{counter-increment:odx}
.article-body ol li::before{
  content:counter(odx);width:18px;height:18px;border-radius:50%;top:.42em;left:0;
  font-size:11px;color:#fff;display:flex;align-items:center;justify-content:center;
  background:var(--grad);line-height:1;
}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:#F7F5FF;
  border-left:4px solid var(--brand);border-radius:0 16px 16px 0;color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap}
.article-body th{background:#F7F5FF;font-weight:600}
.article-body hr{border:none;height:1px;background:var(--line);margin:32px 0}
.article-body figcaption{font-size:13px;color:var(--faint);text-align:center;margin-top:-12px}
.code-block{
  margin:24px 0;padding:18px 20px;background:#150F33;color:#E6E1FF;
  border-radius:16px;font-size:14px;overflow-x:auto;
}
.empty-state{
  border:1px dashed #CFC7EA;border-radius:var(--r-md);padding:48px 24px;text-align:center;background:#FBFAFF;
}
.empty-state i{font-size:30px;color:var(--brand-2);display:block;margin-bottom:12px}
.empty-state p{color:var(--muted);margin-bottom:14px}

/* ---------- 侧栏 ---------- */
.sticky-col{position:sticky;top:96px}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh1);padding:22px 20px;
}
.side-card h3{font-size:16px;font-weight:700;margin-bottom:6px}
.side-card .side-note{font-size:13px;color:var(--faint);margin-bottom:14px}
.guide-list{display:flex;flex-direction:column;gap:10px}
.guide-list a{
  display:flex;align-items:flex-start;gap:10px;
  padding:12px 14px;border-radius:14px;background:#FBFAFF;border:1px solid var(--line);
  font-size:14px;color:var(--text);line-height:1.6;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.guide-list a i{color:var(--brand);margin-top:3px}
.guide-list a:hover{transform:translateY(-3px);box-shadow:var(--sh2);border-color:#D9D0FF;color:var(--brand-dark)}
.side-card + .side-card{margin-top:18px}
.side-badge{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:var(--brand-dark);
  background:var(--brand-soft);border-radius:10px;padding:6px 10px;margin-bottom:12px;font-weight:600;
}
.side-cta-btn{
  display:flex;align-items:center;justify-content:center;gap:8px;height:46px;border-radius:12px;
  background:var(--grad);color:#fff;font-size:15px;font-weight:600;margin-top:16px;box-shadow:var(--sh2);
  transition:filter var(--ease),transform var(--ease);
}
.side-cta-btn:hover{color:#fff;filter:brightness(1.06);transform:translateY(-2px)}

/* ---------- 相关推荐 ---------- */
.related-block{margin-top:34px}
.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}
.section-head h2{font-size:22px;font-weight:700}
.link-more{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.link-more i{transition:transform var(--ease)}
.link-more:hover i{transform:translateX(4px)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.related-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh1);overflow:hidden;padding:12px 14px 16px;color:var(--text);
  transition:transform var(--ease),box-shadow var(--ease);
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--sh3);color:var(--brand-dark)}
.related-thumb{border-radius:15px;overflow:hidden;aspect-ratio:4/3;background:var(--soft-grad);margin-bottom:12px}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.related-card:hover .related-thumb img{transform:scale(1.04)}
.related-card h3{font-size:15.5px;font-weight:600;line-height:1.55;margin-bottom:8px}
.related-meta{font-size:12.5px;color:var(--faint)}

/* ---------- 底部操作 ---------- */
.action-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:12px;background:var(--grad);color:#fff;
  font-size:15px;font-weight:600;border:none;box-shadow:var(--sh2);
  transition:filter var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-main:hover{color:#fff;filter:brightness(1.06);transform:translateY(-2px);box-shadow:var(--sh3)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:12px;background:#fff;color:var(--brand);
  border:1.5px solid var(--brand);font-size:15px;font-weight:600;
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.btn-ghost:hover{background:var(--brand);color:#fff;transform:translateY(-2px)}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:auto;background:var(--dark);color:#CFC7EA;padding:64px 0 28px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-brand .brand-mark{box-shadow:none}
.footer-name{font-size:17px;font-weight:700;color:#fff}
.footer-desc{font-size:13.5px;line-height:1.85;color:#A79FC9;max-width:34ch}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13.5px;color:#A79FC9}
.footer-links a:hover{color:#BDA9FF}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:13.5px;color:#A79FC9}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#8F87B4;
}

@media (max-width:1399.98px){
  :root{--side:240px}
}
@media (min-width:1400px){
  :root{--side:260px}
}
@media (max-width:1199.98px) and (min-width:992px){
  :root{--side:212px}
  .article-body{padding:32px 30px;font-size:16.4px}
  .related-grid{gap:16px}
}
@media (max-width:991.98px){
  .app-shell{display:none}
  .mobile-topbar{display:flex}
  .main-area{margin-left:0;padding-top:60px}
  .page-pad{padding:32px 0 56px}
  .article-head h1{font-size:26px}
  .article-body{padding:26px 22px;font-size:16px}
  .sticky-col{position:static;margin-top:24px}
  .related-grid{grid-template-columns:1fr;gap:16px}
  .related-card{padding:12px 12px 14px}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px}
  .article-head h1{font-size:23px;letter-spacing:-.4px}
  .article-body h2{font-size:20px;margin:30px 0 14px}
  .article-body h3{font-size:17.5px}
  .crumb .now{max-width:36ch}
  .action-row .btn-main,.action-row .btn-ghost{width:100%}
  .footer-bottom{flex-direction:column}
}
@media (max-width:520px){
  .article-cover .cover-box{aspect-ratio:4/3}
  .article-head h1{font-size:21px}
}

/* roulang page: category1 */
:root{
  --brand:#5B3BF5;
  --brand-dark:#4526D6;
  --brand-light:#EDE8FF;
  --brand-2:#A23BEC;
  --accent:#FF6B4A;
  --gold:#FFB324;
  --ok:#12B69A;
  --grad:linear-gradient(120deg,#5B3BF5 0%,#A23BEC 58%,#FF6B4A 100%);
  --soft:linear-gradient(135deg,#F1EDFF 0%,#FFF0EA 100%);
  --bg:#F7F5FF;
  --card:#FFFFFF;
  --dark:#150F33;
  --t1:#1B1636;
  --t2:#6A6484;
  --t3:#9A94B0;
  --line:#E9E4FF;
  --r-xs:10px;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:24px;
  --r-hero:28px;
  --sh1:0 2px 8px rgba(91,59,245,.06);
  --sh2:0 10px 30px rgba(91,59,245,.10);
  --sh3:0 20px 50px rgba(91,59,245,.16);
  --side:240px;
  --ease:cubic-bezier(.22,.61,.36,1);

  --bs-primary:#5B3BF5;
  --bs-primary-rgb:91,59,245;
  --bs-body-color:#1B1636;
  --bs-body-bg:#F7F5FF;
  --bs-link-color:#5B3BF5;
  --bs-link-hover-color:#4526D6;
  --bs-border-color:#E9E4FF;
  --bs-border-radius:14px;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
@media (min-width:1200px){:root{--side:240px}}
@media (min-width:1440px){:root{--side:260px}}
@media (min-width:992px) and (max-width:1199.98px){:root{--side:212px}}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--t1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;object-fit:cover}
a{color:var(--brand);text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4{margin:0;color:var(--t1);letter-spacing:-.3px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(91,59,245,.30);border-radius:8px}

.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%}

/* ---------- 布局骨架 ---------- */
.app-shell{display:flex;min-height:100vh}
.sidebar{
  position:fixed;top:0;left:0;bottom:0;
  width:var(--side);
  background:#fff;
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:24px 16px 20px;
  z-index:1035;
}
.main-area{
  margin-left:var(--side);
  width:calc(100% - var(--side));
  min-width:0;
}

/* ---------- 侧栏品牌 ---------- */
.brand-link{display:flex;align-items:flex-start;gap:12px;padding:4px 6px;color:var(--t1)}
.brand-mark{
  flex:0 0 44px;width:44px;height:44px;border-radius:14px;
  background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:19px;box-shadow:var(--sh2);
}
.brand-text{font-size:18px;font-weight:700;line-height:1.25;letter-spacing:-.4px}
.brand-sub{font-size:12px;color:var(--t3);margin:8px 6px 0;line-height:1.6}

/* ---------- 侧栏导航 ---------- */
.side-nav{display:flex;flex-direction:column;gap:6px;margin-top:28px}
.side-nav .nav-item-link{
  display:flex;align-items:center;gap:10px;
  height:46px;padding:0 14px;border-radius:12px;
  font-size:15px;font-weight:500;color:var(--t2);
  position:relative;transition:all .25s var(--ease);
}
.side-nav .nav-item-link i{font-size:18px;width:20px;text-align:center}
.side-nav .nav-item-link:hover{background:var(--brand-light);color:var(--brand)}
.side-nav .nav-item-link.active{
  background:var(--grad);color:#fff;box-shadow:var(--sh2);
}
.side-nav .nav-item-link.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-sub{margin-top:auto;padding:18px 14px 12px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:8px}
.side-sub a{font-size:13px;color:var(--t3)}
.side-sub a:hover{color:var(--brand)}
.side-cta{margin-top:8px}

/* ---------- 按钮 ---------- */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--grad);color:#fff;border:0;
  border-radius:12px;padding:14px 28px;
  font-size:15px;font-weight:600;line-height:1.2;
  box-shadow:var(--sh1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),filter .25s var(--ease);
  cursor:pointer;
}
.btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--sh2);filter:brightness(1.06)}
.btn-brand:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:#fff;color:var(--brand);
  border:1.5px solid var(--brand);border-radius:12px;
  padding:13px 26px;font-size:15px;font-weight:600;line-height:1.2;
  transition:all .25s var(--ease);cursor:pointer;
}
.btn-ghost:hover{background:var(--brand);color:#fff;transform:translateY(-2px);box-shadow:var(--sh2)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);background:none;border:0;padding:0;cursor:pointer;
}
.btn-text i{transition:transform .25s var(--ease)}
.btn-text:hover i{transform:translateX(4px)}
.btn-block{width:100%}

/* ---------- 移动端顶栏 ---------- */
.mobile-bar{
  position:fixed;top:0;left:0;right:0;height:60px;z-index:1040;
  background:#fff;border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:12px;padding:0 16px;
  transition:box-shadow .25s var(--ease);
}
.mobile-bar.scrolled{box-shadow:var(--sh1)}
.hamburger{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--brand);font-size:17px;
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:all .25s var(--ease);
}
.hamburger:hover{background:var(--brand-light)}
.mobile-brand{display:flex;align-items:center;gap:10px;color:var(--t1);min-width:0}
.mobile-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:11px;font-size:15px}
.mobile-brand-text{font-size:16px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
@media (max-width:991.98px){
  body{padding-top:60px}
  .sidebar{display:none}
  .main-area{margin-left:0;width:100%}
}

/* ---------- 抽屉 ---------- */
.nav-drawer{
  width:82vw !important;max-width:320px;
  background:#fff;border-radius:24px 0 0 24px;
  border-left:1px solid var(--line);
  padding:8px 0;
}
.nav-drawer .offcanvas-header{padding:20px 20px 12px;border-bottom:1px solid var(--line)}
.nav-drawer .offcanvas-title{font-size:17px;font-weight:700;line-height:1.3}
.nav-drawer .offcanvas-body{padding:18px 14px 24px;display:flex;flex-direction:column}
.drawer-label{font-size:12px;letter-spacing:1px;color:var(--t3);padding:0 10px;margin-bottom:10px}
.nav-drawer .side-nav{margin-top:0;gap:4px}
.nav-drawer .side-nav .nav-item-link{height:52px;font-size:16px}
.nav-drawer .side-nav .nav-item-link.active::before{display:none}
.btn-close{--bs-btn-close-focus-shadow:0 0 0 3px rgba(91,59,245,.30)}

/* ---------- 页头 ---------- */
.page-head{padding:44px 0 8px}
.crumbs{font-size:14px;color:var(--t3);display:flex;flex-wrap:wrap;align-items:center;gap:2px;margin-bottom:22px}
.crumbs a{color:var(--t2)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{margin:0 8px;color:#CFC7F0}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;color:var(--brand);
  background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:7px 16px;box-shadow:var(--sh1);
}
.pill i{font-size:12px}
.page-title{font-size:48px;font-weight:800;line-height:1.24;letter-spacing:-.6px;margin-top:18px}
.page-title .hl{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-lead{font-size:17px;color:var(--t2);max-width:760px;margin-top:18px}
.head-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.stats-row{display:flex;gap:16px;margin-top:32px;overflow-x:auto;padding-bottom:6px}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:16px 20px;box-shadow:var(--sh1);min-width:158px;flex:0 0 auto;
}
.stat-card b{
  display:block;font-size:22px;font-weight:800;letter-spacing:-.4px;
  color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.3;
}
.stat-card b.gold{color:#E39400}
.stat-card span{font-size:12px;color:var(--t2);white-space:nowrap}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-tight{padding-top:56px}
.section-soft{background:var(--soft)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.sec-title{font-size:34px;font-weight:700;letter-spacing:-.4px;line-height:1.3}
.sec-sub{font-size:16px;color:var(--t2);margin-top:12px;max-width:680px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;
  color:var(--brand-2);background:var(--brand-light);
  border-radius:999px;padding:6px 14px;margin-bottom:14px;
}

/* ---------- 编号说明块 ---------- */
.num-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  padding:10px 40px;box-shadow:var(--sh1);
}
.num-block{display:flex;gap:28px;padding:32px 0;border-bottom:1px solid var(--line);align-items:flex-start}
.num-block:last-child{border-bottom:0}
.num-block .num{
  flex:0 0 96px;
  font-size:48px;font-weight:800;line-height:1;
  font-variant-numeric:tabular-nums;letter-spacing:-2px;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  opacity:.92;
}
.num-block h3{font-size:22px;font-weight:600;letter-spacing:-.3px}
.num-block p{font-size:15.5px;color:var(--t2);margin-top:10px;max-width:820px}
.num-tip{
  display:inline-flex;align-items:center;gap:8px;margin-top:14px;
  font-size:13px;color:#0E8F7A;background:rgba(18,182,154,.10);
  border-radius:10px;padding:6px 12px;
}

/* ---------- 准备清单 ---------- */
.prep-grid{display:grid;grid-template-columns:5fr 7fr;gap:36px;align-items:center}
.prep-figure{
  border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh2);
  aspect-ratio:4/3;background:var(--soft);
}
.prep-figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.prep-figure:hover img{transform:scale(1.04)}
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.check-list li{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 18px;font-size:15px;color:var(--t1);
  display:flex;gap:12px;align-items:flex-start;box-shadow:var(--sh1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.check-list li:hover{transform:translateY(-4px);box-shadow:var(--sh3)}
.check-list i{
  flex:0 0 22px;width:22px;height:22px;margin-top:5px;border-radius:50%;
  background:var(--grad);color:#fff;font-size:10px;
  display:flex;align-items:center;justify-content:center;
}

/* ---------- 表格 ---------- */
.table-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow-x:auto;box-shadow:var(--sh1);
}
table.spec{width:100%;min-width:760px;border-collapse:collapse}
table.spec th{
  background:#F3EFFF;color:#3B2E8F;font-size:14px;font-weight:600;
  text-align:left;padding:18px 22px;white-space:nowrap;
}
table.spec td{
  padding:18px 22px;font-size:15px;color:var(--t2);border-top:1px solid var(--line);
  font-variant-numeric:tabular-nums;
}
table.spec td:first-child{color:var(--t1);font-weight:600}
table.spec tr:hover td{background:#FBFAFF}

/* ---------- 异议速查卡 ---------- */
.q-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.q-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 26px 26px 30px;box-shadow:var(--sh1);position:relative;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.q-card::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:4px;
  border-radius:0 4px 4px 0;background:var(--grad);
}
.q-card:hover{transform:translateY(-4px);box-shadow:var(--sh3)}
.q-card h3{font-size:17px;font-weight:600;display:flex;gap:10px;align-items:center}
.q-card h3 i{color:var(--brand);font-size:15px}
.q-card p{font-size:14.5px;color:var(--t2);margin-top:12px}

/* ---------- 宽幅图卡 ---------- */
.wide-card{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  box-shadow:var(--sh2);aspect-ratio:21/9;background:var(--dark);
}
.wide-card img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.wide-card:hover img{transform:scale(1.03)}
.wide-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(21,15,51,.86) 0%,rgba(21,15,51,.35) 55%,rgba(21,15,51,.08) 100%)}
.wide-inner{position:absolute;left:44px;bottom:44px;right:44px;color:#fff;max-width:560px}
.wide-inner h2{color:#fff;font-size:30px;font-weight:700;letter-spacing:-.4px}
.wide-inner p{color:rgba(255,255,255,.82);font-size:15.5px;margin-top:12px}
.wide-inner .btn-wrap{margin-top:24px;display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:0}
.footer-brand{display:flex;align-items:center;gap:12px}
.footer-brand .brand-mark{width:40px;height:40px;flex:0 0 40px;border-radius:12px;font-size:17px}
.footer-name{font-size:18px;font-weight:700;color:#fff;letter-spacing:-.3px}
.footer-desc{font-size:14px;color:rgba(255,255,255,.62);margin-top:16px;max-width:330px}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.66);transition:color .25s var(--ease)}
.footer-links a:hover{color:#C9B7FF}
.footer-contact{display:flex;flex-direction:column;gap:10px}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.66)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .page-title{font-size:42px}
}
@media (max-width:991.98px){
  .section{padding:64px 0}
  .page-head{padding:32px 0 4px}
  .page-title{font-size:34px}
  .sec-title{font-size:28px}
  .num-panel{padding:8px 24px}
  .num-block{gap:18px;padding:26px 0}
  .num-block .num{flex:0 0 64px;font-size:38px}
  .prep-grid{grid-template-columns:1fr;gap:24px}
  .wide-inner{left:26px;right:26px;bottom:26px}
  .wide-inner h2{font-size:24px}
  .site-footer{padding:52px 0 24px}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px}
  .section{padding:48px 0}
  .page-title{font-size:32px;letter-spacing:-.4px}
  .page-lead{font-size:15.5px}
  .sec-title{font-size:26px}
  .head-actions{flex-direction:column;align-items:stretch}
  .head-actions .btn-brand,.head-actions .btn-ghost{width:100%}
  .stats-row{margin-top:24px}
  .check-list{grid-template-columns:1fr}
  .q-grid{grid-template-columns:1fr}
  .num-block{flex-direction:row;gap:14px}
  .num-block .num{flex:0 0 52px;font-size:32px}
  .num-block h3{font-size:18px}
  .wide-card{aspect-ratio:16/11}
  .wide-shade{background:linear-gradient(180deg,rgba(21,15,51,.35) 0%,rgba(21,15,51,.9) 100%)}
  .wide-inner{max-width:none}
  .wide-inner h2{font-size:21px}
  .wide-inner .btn-wrap .btn-brand{width:100%}
}
@media (max-width:519.98px){
  .page-title{font-size:28px}
  .stat-card{min-width:140px;padding:14px 16px}
  .stat-card b{font-size:20px}
}

/* roulang page: category2 */
:root{
  --brand:#5B3BF5;
  --brand-dark:#4526D6;
  --brand-light:#EDE8FF;
  --brand-2:#A23BEC;
  --warm:#FF6B4A;
  --gold:#FFB324;
  --green:#12B69A;
  --grad:linear-gradient(120deg,#5B3BF5 0%,#A23BEC 58%,#FF6B4A 100%);
  --soft:linear-gradient(135deg,#F1EDFF 0%,#FFF0EA 100%);
  --bg:#F7F5FF;
  --card:#FFFFFF;
  --dark:#150F33;
  --text:#1B1636;
  --muted:#6A6484;
  --weak:#9A94B0;
  --line:#E9E4FF;
  --r-btn:12px;
  --r-sm:16px;
  --r-md:20px;
  --r-lg:24px;
  --r-hero:28px;
  --sh1:0 2px 8px rgba(91,59,245,.06);
  --sh2:0 10px 30px rgba(91,59,245,.10);
  --sh3:0 20px 50px rgba(91,59,245,.16);
  --sidebar-w:240px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --bs-primary:#5B3BF5;
  --bs-primary-rgb:91,59,245;
  --bs-body-color:#1B1636;
  --bs-body-bg:#F7F5FF;
  --bs-border-color:#E9E4FF;
  --bs-border-radius:16px;
  --bs-link-color:#5B3BF5;
  --bs-link-hover-color:#4526D6;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
@media (min-width:1440px){:root{--sidebar-w:260px;}}
@media (min-width:992px) and (max-width:1199.98px){:root{--sidebar-w:212px;}}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
}
img{display:block;max-width:100%;object-fit:cover;}
a{color:var(--brand);text-decoration:none;transition:color .25s var(--ease);}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:-.4px;color:var(--text);font-variant-numeric:tabular-nums;}
h1{font-size:48px;font-weight:800;line-height:1.2;}
h2{font-size:34px;font-weight:700;line-height:1.3;}
h3{font-size:22px;font-weight:600;line-height:1.45;}
h4{font-size:18px;font-weight:600;line-height:1.5;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(91,59,245,.30);border-radius:8px;}

.container{
  max-width:1200px;
  padding-left:24px;
  padding-right:24px;
  margin:0 auto;
}

/* ============ 侧栏 ============ */
.app-sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:#fff;
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  padding:26px 16px 20px;
  z-index:1040;
  overflow-y:auto;
}
.brand-block{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  padding:0 6px 6px;
}
.brand-mark{
  width:44px;height:44px;
  border-radius:14px;
  background:var(--grad);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:19px;
  flex:0 0 auto;
  box-shadow:var(--sh2);
}
.brand-text{
  font-size:18px;
  font-weight:700;
  line-height:1.25;
  color:var(--text);
  letter-spacing:-.3px;
}
.brand-sub{
  flex:0 0 100%;
  font-size:12px;
  color:var(--weak);
  line-height:1.6;
  letter-spacing:0;
  padding-left:2px;
}
.side-nav{
  margin-top:26px;
  display:flex;
  flex-direction:column;
  gap:6px;
}
.nav-item-link{
  display:flex;
  align-items:center;
  gap:10px;
  height:46px;
  padding:0 14px;
  border-radius:12px;
  font-size:15px;
  font-weight:500;
  color:var(--muted);
  position:relative;
  transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);
}
.nav-item-link i{font-size:18px;width:20px;text-align:center;color:var(--weak);transition:color .25s var(--ease);}
.nav-item-link:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateX(2px);}
.nav-item-link:hover i{color:var(--brand);}
.nav-item-link.active{
  background:var(--grad);
  color:#fff;
  box-shadow:var(--sh2);
}
.nav-item-link.active i{color:#fff;}
.side-foot{
  margin-top:auto;
  padding-top:22px;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.side-links{
  display:flex;
  gap:16px;
  padding:0 6px;
}
.side-links a{font-size:13px;color:var(--weak);}
.side-links a:hover{color:var(--brand);}
.btn-grad{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border:0;
  border-radius:var(--r-btn);
  background:var(--grad);
  color:#fff;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),filter .25s var(--ease);
  box-shadow:var(--sh2);
}
.btn-grad:hover{transform:translateY(-2px);box-shadow:var(--sh3);filter:brightness(1.06);color:#fff;}
.btn-grad:active{transform:translateY(0);}
.side-cta{width:100%;padding:14px 16px;}

/* ============ 移动端顶栏 ============ */
.mobile-topbar{
  display:none;
  position:sticky;
  top:0;
  z-index:1050;
  height:60px;
  background:#fff;
  border-bottom:1px solid var(--line);
  align-items:center;
  gap:12px;
  padding:0 16px;
  transition:box-shadow .25s var(--ease);
}
.mobile-topbar.scrolled{box-shadow:var(--sh1);}
.hamburger{
  width:40px;height:40px;
  border:1px solid var(--line);
  background:#fff;
  border-radius:12px;
  color:var(--brand);
  font-size:16px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:background .25s var(--ease),color .25s var(--ease);
}
.hamburger:hover{background:var(--brand-light);}
.mobile-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:16px;
  font-weight:700;
  color:var(--text);
  letter-spacing:-.3px;
}
.mobile-brand .brand-mark{width:34px;height:34px;border-radius:11px;font-size:15px;}
.mobile-cta{margin-left:auto;font-size:13px;font-weight:600;color:var(--brand);}

/* 抽屉 */
.offcanvas.drawer{
  width:82vw;
  max-width:320px;
  background:#fff;
  border-radius:24px 0 0 24px;
  padding:22px 16px;
}
.drawer-group-title{
  font-size:12px;
  color:var(--weak);
  letter-spacing:.08em;
  padding:0 14px 8px;
}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav .nav-item-link{height:52px;font-size:16px;}

/* ============ 主内容区 ============ */
.app-content{
  margin-left:var(--sidebar-w);
  min-height:100vh;
  display:flex;
  flex-direction:column;
}

/* ============ 页头 ============ */
.page-head{
  background:var(--soft);
  border-bottom:1px solid var(--line);
  padding:56px 0 60px;
  position:relative;
  overflow:hidden;
}
.page-head::before,
.page-head::after{
  content:"";
  position:absolute;
  border-radius:50%;
  pointer-events:none;
}
.page-head::before{
  width:380px;height:380px;
  right:-120px;top:-160px;
  background:radial-gradient(circle,rgba(162,59,236,.20) 0%,rgba(162,59,236,0) 70%);
}
.page-head::after{
  width:320px;height:320px;
  left:-140px;bottom:-180px;
  background:radial-gradient(circle,rgba(255,107,74,.18) 0%,rgba(255,107,74,0) 70%);
}
.page-head .container{position:relative;z-index:2;}
.page-head-center{text-align:center;display:flex;flex-direction:column;align-items:center;}
.breadcrumb-line{
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:14px;
  color:var(--weak);
  margin-bottom:22px;
}
.breadcrumb-line a{color:var(--muted);}
.breadcrumb-line a:hover{color:var(--brand);}
.breadcrumb-line .sep{color:#C9C2E4;}
.breadcrumb-line .current{color:var(--text);font-weight:500;}
.pill-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 16px;
  border-radius:999px;
  background:#fff;
  border:1.5px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  font-size:12px;
  font-weight:600;
  color:var(--brand-dark);
  letter-spacing:.02em;
  margin-bottom:22px;
}
.page-head h1{max-width:820px;margin-bottom:20px;}
.page-head .lead-text{
  max-width:700px;
  font-size:16px;
  color:var(--muted);
  margin:0;
}

/* ============ 板块通用 ============ */
.section{padding:88px 0;}
.section-head{margin-bottom:44px;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--muted);margin:0;max-width:720px;}
.section-head.center{text-align:center;}
.section-head.center p{margin-left:auto;margin-right:auto;}

/* ============ 错位卡片网格 ============ */
.offset-grid{
  display:grid;
  grid-template-columns:1.05fr 1fr 1fr;
  grid-template-rows:repeat(2,minmax(210px,1fr));
  gap:24px;
}
.offset-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:28px;
  box-shadow:var(--sh1);
  display:flex;
  flex-direction:column;
  gap:14px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.offset-card:hover{transform:translateY(-4px);box-shadow:var(--sh3);}
.offset-card p{color:var(--muted);font-size:15px;margin:0;}
.oc-1{
  grid-row:span 2;
  background:var(--soft);
  padding:24px;
  gap:16px;
}
.oc-4{grid-column:2 / span 2;flex-direction:row;align-items:center;gap:24px;}
.oc-4 .oc-body{flex:1;}
.icon-box{
  width:48px;height:48px;
  border-radius:16px;
  background:var(--brand-light);
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  flex:0 0 auto;
}
.oc-1 .icon-box{background:var(--grad);color:#fff;box-shadow:var(--sh2);}
.oc-thumb{
  width:100%;
  aspect-ratio:16/10;
  border-radius:var(--r-sm);
  overflow:hidden;
  background:var(--grad);
}
.oc-thumb img{width:100%;height:100%;transition:transform .35s var(--ease);}
.offset-card:hover .oc-thumb img{transform:scale(1.04);}
.oc-1 h3{font-size:21px;}
.offset-card h3{font-size:19px;margin:0;}
.offset-card h3 + p{margin-top:2px;}
.tag-line{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  font-weight:600;
  color:var(--brand-dark);
  background:var(--brand-light);
  border-radius:10px;
  padding:5px 10px;
  align-self:flex-start;
  letter-spacing:.02em;
}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px;margin:0 auto;}
.accordion-item{
  border:0;
  background:transparent;
  margin-bottom:12px;
  border-radius:var(--r-sm);
}
.accordion-item:last-child{margin-bottom:0;}
.accordion-button{
  position:relative;
  width:100%;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  padding:19px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  box-shadow:var(--sh1);
  transition:background .25s var(--ease),border-radius .25s var(--ease),color .25s var(--ease);
}
.accordion-button:not(.collapsed){
  background:#F7F5FF;
  color:var(--brand-dark);
  border-radius:var(--r-sm) var(--r-sm) 0 0;
  box-shadow:none;
}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(91,59,245,.30);z-index:3;}
.accordion-button::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:4px;
  border-radius:0 4px 4px 0;
  background:var(--grad);
  opacity:0;
  transition:opacity .25s var(--ease);
}
.accordion-button:not(.collapsed)::before{opacity:1;}
.accordion-button::after{
  content:"";
  width:9px;height:9px;
  border-right:2px solid var(--brand);
  border-bottom:2px solid var(--brand);
  background-image:none;
  transform:rotate(45deg);
  transition:transform .25s var(--ease);
  flex:0 0 auto;
  margin-left:auto;
}
.accordion-button:not(.collapsed)::after{transform:rotate(-135deg);}
.accordion-body{
  background:#F7F5FF;
  border:1px solid var(--line);
  border-top:0;
  border-radius:0 0 var(--r-sm) var(--r-sm);
  padding:4px 22px 20px 26px;
  color:var(--muted);
  font-size:15px;
}
.accordion-body p{margin:0;}

/* ============ CTA 窄条 ============ */
.cta-strip{
  background:var(--grad);
  border-radius:var(--r-lg);
  padding:34px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  box-shadow:var(--sh3);
  position:relative;
  overflow:hidden;
}
.cta-strip::after{
  content:"";
  position:absolute;
  width:260px;height:260px;
  right:-80px;top:-120px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.22) 0%,rgba(255,255,255,0) 70%);
  pointer-events:none;
}
.cta-strip h2{color:#fff;font-size:26px;margin-bottom:8px;position:relative;z-index:2;}
.cta-strip p{color:rgba(255,255,255,.86);margin:0;font-size:15px;max-width:620px;position:relative;z-index:2;}
.btn-white{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--r-btn);
  background:#fff;
  color:var(--brand-dark);
  font-size:15px;
  font-weight:700;
  white-space:nowrap;
  position:relative;
  z-index:2;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
  box-shadow:0 10px 24px rgba(21,15,51,.18);
}
.btn-white:hover{transform:translateY(-2px);color:var(--brand-dark);box-shadow:0 16px 34px rgba(21,15,51,.24);}
.btn-outline-brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:13px 26px;
  border:1.5px solid var(--brand);
  border-radius:var(--r-btn);
  background:#fff;
  color:var(--brand);
  font-size:15px;
  font-weight:600;
  transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);
}
.btn-outline-brand:hover{background:var(--brand);color:#fff;transform:translateY(-2px);}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:auto;
  background:var(--dark);
  color:rgba(255,255,255,.72);
  padding:64px 0 26px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-name{font-size:18px;font-weight:700;color:#fff;letter-spacing:-.3px;}
.footer-desc{font-size:14px;color:rgba(255,255,255,.62);line-height:1.8;margin:0;max-width:340px;}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.68);}
.footer-links a:hover{color:#B9A9FF;}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.62);line-height:1.9;}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ============ Bootstrap 覆写 ============ */
.btn-primary{
  --bs-btn-bg:var(--brand);
  --bs-btn-border-color:var(--brand);
  --bs-btn-hover-bg:var(--brand-dark);
  --bs-btn-hover-border-color:var(--brand-dark);
  --bs-btn-active-bg:var(--brand-dark);
  --bs-btn-active-border-color:var(--brand-dark);
  border-radius:var(--r-btn);
  font-weight:600;
}
.card{
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh1);
  background:var(--card);
}
.badge{background:var(--brand-light);color:var(--brand-dark);border-radius:10px;font-weight:600;}
.offcanvas{border:0;}
.offcanvas-backdrop.show{opacity:.42;}

/* ============ 响应式 ============ */
@media (max-width:1399.98px){
  .offset-grid{grid-template-columns:1.05fr 1fr 1fr;}
}
@media (max-width:1199.98px){
  h1{font-size:40px;}
  h2{font-size:30px;}
  .section{padding:76px 0;}
}
@media (max-width:991.98px){
  .app-sidebar{display:none;}
  .app-content{margin-left:0;}
  .mobile-topbar{display:flex;}
  .page-head{padding:40px 0 46px;}
  h1{font-size:34px;}
  h2{font-size:27px;}
  h3{font-size:20px;}
  .section{padding:60px 0;}
  .section-head{margin-bottom:32px;}
  .offset-grid{
    grid-template-columns:1fr 1fr;
    grid-template-rows:auto;
  }
  .oc-1{grid-row:span 1;grid-column:1 / -1;}
  .oc-4{grid-column:1 / -1;flex-direction:column;align-items:flex-start;gap:16px;}
  .cta-strip{flex-direction:column;align-items:flex-start;padding:30px 26px;}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  h1{font-size:32px;}
  h2{font-size:26px;}
  .section{padding:48px 0;}
  .page-head{padding:32px 0 40px;}
  .offset-grid{grid-template-columns:1fr;gap:16px;}
  .offset-card{padding:22px;}
  .cta-strip h2{font-size:22px;}
  .btn-white,.btn-outline-brand,.btn-grad{width:100%;justify-content:center;}
  .footer-desc{max-width:100%;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:519.98px){
  h1{font-size:29px;line-height:1.28;}
  .brand-text{font-size:17px;}
  .accordion-button{padding:16px 18px;font-size:15px;}
  .accordion-body{padding:4px 18px 18px 20px;}
}