/* roulang page: index */
:root{
  --brand:#5A34E8;
  --brand-deep:#3A1FA8;
  --brand-soft:#EDE8FE;
  --cyan:#12C8B0;
  --orange:#FF7A3C;
  --bg:#F6F4FB;
  --ink:#1B1730;
  --ink-2:#5C5678;
  --ink-3:#8E88A6;
  --line:#E6E1F5;
  --dark:#171233;
  --grad:linear-gradient(135deg,#5A34E8 0%,#7A4BF0 45%,#12C8B0 100%);
  --radius:20px;
  --radius-lg:24px;
  --radius-sm:12px;
  --shadow:0 8px 30px rgba(58,31,168,.10);
  --shadow-lg:0 16px 44px rgba(58,31,168,.18);
  --wrap:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"HarmonyOS Sans","PingFang SC","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{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
h1,h2,h3{line-height:1.3}
:focus-visible{outline:3px solid rgba(90,52,232,.35);outline-offset:2px;border-radius:8px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.tabnum{font-variant-numeric:tabular-nums}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .28s var(--ease),background .28s var(--ease);
}
.site-header.is-scrolled{background:#fff;box-shadow:0 6px 24px rgba(58,31,168,.08)}
.nav-inner{
  max-width:var(--wrap);margin:0 auto;padding:0 24px;height:72px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
}
.nav-side{display:flex;align-items:center;gap:30px;flex:1 1 0;min-width:0}
.nav-side.right{justify-content:flex-end}
.nav-link{
  position:relative;font-size:16px;font-weight:500;color:var(--ink-2);
  padding:6px 0;white-space:nowrap;transition:color .28s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:-2px;height:2px;width:0;
  background:var(--cyan);transform:translateX(-50%);
  transition:width .28s var(--ease);
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{width:60%}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-link.active::after{width:60%}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;border-radius:13px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-size:16px;font-weight:700;
  box-shadow:0 8px 20px rgba(90,52,232,.32);letter-spacing:0;
}
.brand-text{font-size:18px;font-weight:700;color:var(--ink);white-space:nowrap}
.nav-cta{padding:11px 22px;font-size:15px}
.nav-burger,.nav-icon-btn{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border:1px solid var(--line);border-radius:14px;
  background:#fff;color:var(--ink);cursor:pointer;
}
.nav-burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-burger span::before,.nav-burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .28s var(--ease),top .28s var(--ease);
}
.nav-burger span::before{top:-6px}
.nav-burger span::after{top:6px}
.nav-burger.is-open span{background:transparent}
.nav-burger.is-open span::before{top:0;transform:rotate(45deg)}
.nav-burger.is-open span::after{top:0;transform:rotate(-45deg)}
.drawer{
  position:fixed;left:0;right:0;top:72px;bottom:0;z-index:55;
  background:#fff;padding:12px 24px 32px;overflow-y:auto;
  opacity:0;transform:translateY(-10px);pointer-events:none;
  transition:opacity .28s var(--ease),transform .28s var(--ease);
}
.drawer.open{opacity:1;transform:none;pointer-events:auto}
.drawer a{
  display:block;font-size:20px;font-weight:500;color:var(--ink);
  padding:18px 0;border-bottom:1px solid var(--line);
}
.drawer a.active{color:var(--brand);font-weight:600}
.drawer .btn{width:100%;justify-content:center;margin-top:26px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:1px solid transparent;cursor:pointer;
  font-size:16px;font-weight:600;padding:14px 30px;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),background .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease);
}
.btn .arrow{transition:transform .28s var(--ease)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 26px rgba(90,52,232,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(90,52,232,.36)}
.btn-primary:hover .arrow{transform:translateX(4px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);transform:translateY(-2px)}
.btn-line{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.42)}
.btn-line:hover{background:rgba(255,255,255,.2);transform:translateY(-2px)}
.btn-text{background:none;color:var(--ink-2);padding:6px 0;font-size:15px}
.btn-text:hover{color:var(--cyan);transform:translateX(4px)}

/* ---------- 通用板块 ---------- */
section{padding:96px 0}
.sec-white{background:#fff}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-deep);
  background:var(--brand-soft);border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
h2{font-size:32px;font-weight:700;color:var(--ink)}
h2 .bar{
  display:inline-block;width:4px;height:26px;border-radius:3px;
  background:var(--grad);margin-right:12px;vertical-align:-3px;
}
.sec-lead{margin-top:14px;font-size:16px;color:var(--ink-2)}
.deep h2,.deep h3{color:#fff}
.deep .sec-lead{color:rgba(255,255,255,.72)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(135deg,#4A28D8 0%,#5A34E8 42%,#12C8B0 100%);
  padding:96px 0 88px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:.18;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(23,18,51,.72) 0%,rgba(23,18,51,.32) 55%,rgba(23,18,51,.12) 100%);
}
.hero-inner{position:relative;z-index:2;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.hero-copy{max-width:62%}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.26);
  border-radius:999px;padding:7px 16px;margin-bottom:22px;
}
.hero h1{font-size:44px;font-weight:700;line-height:1.25;letter-spacing:0}
.hero-sub{margin-top:20px;font-size:18px;line-height:1.8;color:rgba(255,255,255,.9);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:48px;
}
.badge{
  display:flex;align-items:center;gap:12px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  border-radius:16px;padding:14px 16px;
}
.badge-dot{width:8px;height:8px;border-radius:50%;background:var(--orange);flex:0 0 auto}
.badge-num{font-size:20px;font-weight:700;line-height:1.2;color:var(--orange)}
.badge-txt{font-size:13px;line-height:1.6;color:rgba(255,255,255,.82)}

/* ---------- 品牌主张 ---------- */
.belief-grid{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.5fr);
  gap:56px;align-items:center;
}
.belief-copy p{margin-top:16px;color:var(--ink-2);line-height:1.85}
.belief-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg)}
.belief-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.float-card{
  position:absolute;left:-22px;bottom:26px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:14px 18px;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:12px;
}
.float-card .badge-num{color:var(--brand)}
.float-card small{display:block;font-size:12px;color:var(--ink-3);line-height:1.5}
.point-list{margin-top:24px;display:grid;gap:12px}
.point-list li{
  display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink-2);
}
.point-list i{color:var(--cyan);margin-top:5px}

/* ---------- 深底时间线 ---------- */
.deep{position:relative;overflow:hidden;background:var(--dark)}
.deep::before{
  content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(255,255,255,.10);
  box-shadow:0 0 0 70px rgba(255,255,255,.04),0 0 0 140px rgba(255,255,255,.02);
  pointer-events:none;
}
.timeline{margin-top:44px;display:grid;gap:8px;position:relative}
.timeline-item{display:grid;grid-template-columns:26px 1fr;gap:20px;padding-bottom:32px;position:relative}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{
  content:"";position:absolute;left:12px;top:22px;bottom:0;width:1px;
  background:linear-gradient(180deg,rgba(18,200,176,.55),rgba(255,255,255,.06));
}
.timeline-item:last-child::before{display:none}
.tl-dot{
  width:14px;height:14px;border-radius:50%;background:var(--cyan);margin:8px auto 0;
  box-shadow:0 0 0 6px rgba(18,200,176,.16);
}
.timeline-item h3{font-size:19px;font-weight:600}
.timeline-item p{margin-top:8px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.72);max-width:640px}

/* ---------- 精选卡片 ---------- */
.feature-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card-wide{display:grid;grid-template-columns:5fr 7fr;border-radius:var(--radius-lg)}
.card-wide .media{height:100%;min-height:260px;aspect-ratio:auto}
.card-v .media{aspect-ratio:4/3}
.card-stack{display:grid;gap:24px;grid-auto-rows:1fr}
.media{position:relative;overflow:hidden;background:var(--brand-soft)}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .28s var(--ease)}
.card:hover .media img{transform:scale(1.04)}
.card-body{padding:24px;display:flex;flex-direction:column;gap:12px}
.card-body h3{font-size:20px;font-weight:600}
.card-wide .card-body h3{font-size:24px}
.card-body p{font-size:15px;color:var(--ink-2);line-height:1.8}
.tag{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  font-size:12px;font-weight:600;color:var(--brand-deep);
  background:var(--brand-soft);border-radius:999px;padding:5px 12px;
}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px}
.head-row h2{max-width:640px}
.head-row .btn-text{align-self:center}

/* ---------- 列表 / CMS ---------- */
.filter-tabs{display:flex;gap:10px;overflow-x:auto;padding-bottom:4px;margin-bottom:28px}
.filter-tabs a{
  flex:0 0 auto;font-size:13px;font-weight:600;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 16px;
  transition:color .28s var(--ease),border-color .28s var(--ease),background .28s var(--ease);
}
.filter-tabs a:hover{color:var(--brand);border-color:var(--brand)}
.filter-tabs a.is-active{background:var(--brand-soft);color:var(--brand-deep);border-color:transparent}
.post-list{display:grid;gap:16px}
.post-item{
  display:grid;grid-template-columns:84px 1fr;gap:18px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;position:relative;overflow:hidden;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.post-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--grad);opacity:0;transition:opacity .28s var(--ease);
}
.post-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.post-item:hover::before{opacity:1}
.post-thumb{width:84px;height:84px;border-radius:14px;overflow:hidden;background:var(--brand-soft)}
.post-thumb img{width:100%;height:100%;object-fit:cover}
.post-main{min-width:0}
.post-title{
  display:block;font-size:18px;font-weight:600;color:var(--ink);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  transition:color .28s var(--ease);
}
.post-item:hover .post-title{color:var(--brand)}
.post-desc{
  margin-top:8px;font-size:14px;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{margin-top:10px;display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--ink-3)}
.post-meta .tag{padding:3px 10px;font-size:12px}
.empty{
  text-align:center;padding:48px 24px;background:var(--brand-soft);
  border-radius:var(--radius);border:1px dashed rgba(90,52,232,.28);
}
.empty i{font-size:28px;color:var(--brand)}
.empty p{margin:14px 0 18px;color:var(--ink-2);font-size:15px}

/* ---------- 背书 ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-bottom:40px}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow);
}
.stat-card .badge-num{color:var(--brand);font-size:28px}
.stat-card span{display:block;margin-top:8px;font-size:14px;color:var(--ink-2)}
.quote-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.quote-card{
  display:grid;grid-template-columns:56px 1fr;gap:18px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;
}
.quote-card .avatar{width:56px;height:56px;border-radius:50%;overflow:hidden;background:var(--brand-soft)}
.quote-card .avatar img{width:100%;height:100%;object-fit:cover}
.quote-card p{font-size:15px;color:var(--ink-2);line-height:1.85}
.quote-card cite{
  display:block;margin-top:12px;font-style:normal;font-size:13px;color:var(--ink-3);
}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  transition:border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.faq-item.open{border-color:rgba(90,52,232,.35);box-shadow:var(--shadow)}
.faq-q{
  width:100%;min-height:60px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--ink);position:relative;
  transition:color .28s var(--ease);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--grad);opacity:0;transition:opacity .28s var(--ease);
}
.faq-item.open .faq-q{color:var(--brand)}
.faq-item.open .faq-q::before{opacity:1}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;font-size:16px;line-height:1;
  background:var(--brand-soft);color:var(--brand-deep);
  transition:background .28s var(--ease),color .28s var(--ease);
}
.faq-item.open .faq-icon{background:var(--brand);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-a-inner{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--ink-2)}

/* ---------- CTA ---------- */
.cta{position:relative;overflow:hidden;background:var(--dark);color:#fff;padding:80px 0}
.cta::before{
  content:"";position:absolute;left:-10%;top:0;width:38%;height:100%;
  background:var(--grad);opacity:.85;
  clip-path:polygon(0 0,100% 0,55% 100%,0 100%);
}
.cta::after{
  content:"";position:absolute;right:-80px;bottom:-120px;width:340px;height:340px;border-radius:50%;
  border:1px solid rgba(255,255,255,.10);pointer-events:none;
}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.cta h2{color:#fff}
.cta p{margin-top:14px;color:rgba(255,255,255,.76);font-size:15px}
.cta-form{display:flex;gap:12px}
.cta-form input{
  flex:1 1 auto;min-width:0;font-size:15px;color:#fff;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.22);
  border-radius:14px;padding:15px 18px;transition:border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.cta-form input::placeholder{color:rgba(255,255,255,.5)}
.cta-form input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(18,200,176,.25)}
.cta-note{margin-top:14px;font-size:13px;color:rgba(255,255,255,.55)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#fff;padding:76px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}
.footer-brand .brand-text{color:#fff}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:320px}
.footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links a{display:block;font-size:14px;color:rgba(255,255,255,.65);padding:6px 0;transition:color .28s var(--ease),transform .28s var(--ease)}
.footer-links a:hover{color:var(--cyan);transform:translateX(2px)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.65);padding:6px 0}
.footer-contact i{color:var(--cyan);margin-top:4px;font-size:14px}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  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:1024px){
  .nav-side{display:none}
  .nav-burger{display:flex}
  .nav-icon-btn{display:flex}
  .nav-inner{padding:0 16px}
  .wrap{padding:0 16px}
  section{padding:72px 0}
  .hero{padding:76px 0 68px}
  .hero-copy{max-width:82%}
  .belief-grid{grid-template-columns:1fr;gap:36px}
  .feature-grid{grid-template-columns:1fr}
  .card-wide{grid-template-columns:1fr}
  .card-wide .media{min-height:0;aspect-ratio:16/9}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .quote-grid{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:640px){
  section{padding:56px 0}
  .hero{padding:52px 0 56px}
  .hero-inner{padding:0 16px}
  .hero-copy{max-width:100%;text-align:center}
  .hero h1{font-size:30px;line-height:1.3}
  .hero-sub{font-size:16px;margin-top:16px}
  .hero-kicker{margin-bottom:18px}
  .hero-actions{flex-direction:column;align-items:stretch;margin-top:28px}
  .hero-actions .btn{width:100%}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:34px}
  h2{font-size:24px}
  h2 .bar{height:20px}
  .stat-strip{grid-template-columns:1fr}
  .post-item{grid-template-columns:64px 1fr;padding:14px;gap:14px}
  .post-thumb{width:64px;height:64px;border-radius:12px}
  .post-title{font-size:16px;white-space:normal}
  .cta-form{flex-direction:column}
  .cta-form .btn{width:100%}
  .float-card{left:14px;bottom:14px;padding:12px 14px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .quote-card{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: article */
:root{
  --brand:#5A34E8;
  --brand-deep:#3A1FA8;
  --brand-soft:#EDE8FE;
  --cyan:#12C8B0;
  --orange:#FF7A3C;
  --bg:#F6F4FB;
  --dark:#171233;
  --line:#E6E1F5;
  --text:#1B1730;
  --text2:#5C5678;
  --text3:#8E88A6;
  --grad:linear-gradient(135deg,#5A34E8 0%,#7A4BF0 45%,#12C8B0 100%);
  --r-card:20px;
  --r-lg:24px;
  --r-sm:12px;
  --r-pill:999px;
  --sh:0 8px 30px rgba(58,31,168,.10);
  --sh-hover:0 16px 44px rgba(58,31,168,.18);
  --ease:.28s cubic-bezier(.2,.7,.3,1);
  --pad:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand);text-decoration:none;transition:color var(--ease)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0;color:var(--text)}
p{margin:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(90,52,232,.35);outline-offset:2px;border-radius:8px}
.container,.grid-container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.grid-container{padding-left:24px;padding-right:24px}
.section{padding:var(--pad) 0}
.section-tight{padding:64px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.sec-title{position:relative;font-size:32px;line-height:1.35;padding-left:16px}
.sec-title::before{content:"";position:absolute;left:0;top:.22em;width:4px;height:.92em;border-radius:3px;background:var(--grad)}
.sec-sub{margin-top:10px;font-size:15px;color:var(--text2)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-deep);background:var(--brand-soft);border-radius:var(--r-pill);padding:6px 14px}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:120;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease),background var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(58,31,168,.08)}
.nav-inner{
  position:relative;display:flex;align-items:center;justify-content:space-between;
  gap:24px;max-width:1200px;margin:0 auto;padding:0 24px;height:72px;
}
.nav-side{display:flex;align-items:center;gap:26px}
.nav-link{position:relative;display:inline-block;padding:6px 0;font-size:16px;font-weight:500;color:var(--text2)}
.nav-link::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;border-radius:2px;background:var(--cyan);transition:width var(--ease)}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{width:60%}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-link.active::after{width:60%}
.brand{position:absolute;left:50%;transform:translateX(-50%);display:inline-flex;align-items:center;gap:10px}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;background:var(--grad);
  color:#fff;font-size:15px;font-weight:700;letter-spacing:1px;
  box-shadow:0 6px 16px rgba(90,52,232,.28);
}
.brand-text{font-size:19px;font-weight:700;color:var(--text);letter-spacing:.4px;white-space:nowrap}
.nav-cta{padding:11px 22px;font-size:15px;border-radius:var(--r-pill)}
.nav-burger,.nav-icon-btn{display:none}
.nav-icon-btn{align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);color:var(--brand);font-size:16px}
.nav-icon-btn:hover{background:var(--brand-soft)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);border:1px solid transparent;
  font-size:16px;font-weight:600;padding:14px 30px;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn .arrow{transition:transform var(--ease)}
.btn-primary{background:var(--grad);background-size:160% 160%;color:#fff;box-shadow:0 10px 24px rgba(90,52,232,.24)}
.btn-primary:hover{background-position:100% 0;color:#fff;transform:translateY(-2px);box-shadow:0 12px 28px rgba(90,52,232,.35)}
.btn-primary:hover .arrow{transform:translateX(4px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand-deep);color:var(--brand-deep);transform:translateY(-2px)}
.btn-text{display:inline-flex;align-items:center;gap:8px;padding:6px 0;font-size:15px;font-weight:600;color:var(--text2)}
.btn-text:hover{color:var(--cyan)}
.btn-text:hover .arrow{transform:translateX(4px)}

/* ===== 面包屑 / 标签 ===== */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text3);margin-bottom:18px}
.breadcrumb a{color:var(--text3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C3BCDC}
.breadcrumb .current{color:var(--brand);font-weight:600}
.pill{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--r-pill);background:var(--brand-soft);color:var(--brand-deep);font-size:13px;font-weight:600}
.tag{display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--r-pill);background:#F1EDFD;border:1px solid var(--line);color:var(--brand-deep);font-size:13px}

/* ===== 文章头部 ===== */
.article-top{position:relative;overflow:hidden;padding:36px 0 44px;background:linear-gradient(180deg,#F0EBFD 0%,#F6F4FB 100%)}
.article-top::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.13;pointer-events:none;
}
.article-top > .container{position:relative;z-index:1}
.article-title{font-size:34px;line-height:1.35;margin:14px 0 16px;max-width:920px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:18px;font-size:13px;color:var(--text3)}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:var(--cyan);font-size:13px}
.article-cover{
  margin-top:30px;border-radius:var(--r-lg);overflow:hidden;background:var(--brand-soft);
  aspect-ratio:16/9;box-shadow:var(--sh);border:1px solid var(--line);
}
.article-cover img{width:100%;height:100%;object-fit:cover}

/* ===== 文章布局 ===== */
.article-wrap{padding:56px 0 80px}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start}
.article-main{
  max-width:760px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:40px;box-shadow:var(--sh);
}
.article-body{font-size:17px;line-height:1.9;color:#2B2545}
.article-body p{margin:0 0 18px}
.article-body h2{position:relative;font-size:24px;line-height:1.5;margin:34px 0 16px;padding-left:14px}
.article-body h2::before{content:"";position:absolute;left:0;top:.28em;width:4px;height:.9em;border-radius:3px;background:var(--grad)}
.article-body h3{font-size:19px;font-weight:600;margin:24px 0 12px;color:#2B2545}
.article-body ul{margin:0 0 18px;padding-left:4px}
.article-body ul li{position:relative;padding-left:18px;margin-bottom:10px}
.article-body ul li::before{content:"";position:absolute;left:0;top:.78em;width:6px;height:6px;border-radius:50%;background:var(--brand)}
.article-body ol{margin:0 0 18px;padding-left:22px;list-style:decimal}
.article-body ol li{margin-bottom:10px}
.article-body a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-deep)}
.article-body blockquote{
  margin:22px 0;padding:18px 22px;background:var(--brand-soft);
  border-left:3px solid var(--brand);border-radius:0 14px 14px 0;color:#3B3360;font-size:16px;
}
.article-body img{border-radius:16px;margin:22px auto;height:auto}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;background:#fff}
.article-body th{background:#F1EDFD;text-align:left;font-weight:600;color:var(--brand-deep)}
.article-body th,.article-body td{padding:12px 14px;border:1px solid var(--line)}
.article-body tbody tr:nth-child(even){background:#FAF9FE}
.article-body code{
  background:var(--dark);color:#EDE8FE;padding:2px 8px;border-radius:8px;
  font-family:ui-monospace,Menlo,Consolas,monospace;font-size:14px;
}
.article-body pre{
  margin:22px 0;padding:20px;background:var(--dark);color:#E9E5FA;border-radius:16px;
  overflow:auto;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;padding:0;color:inherit}
.empty-state{
  text-align:center;background:var(--brand-soft);border:1px dashed #C9BCF4;
  border-radius:var(--r-card);padding:48px 24px;
}
.empty-state i{font-size:32px;color:var(--brand)}
.empty-state h3{margin:14px 0 8px;font-size:20px}
.empty-state p{color:var(--text2);font-size:15px;margin-bottom:20px}
.article-foot{margin-top:34px;padding-top:24px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}

/* ===== 侧栏 ===== */
.side-col{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh)}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--cyan);font-size:14px}
.side-nav a{
  display:block;padding:9px 12px;border-radius:var(--r-sm);font-size:14px;color:var(--text2);
  border-left:3px solid transparent;transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.side-nav a:hover{background:var(--brand-soft);color:var(--brand-deep);border-left-color:var(--brand)}
.side-list li{display:flex;gap:10px;font-size:14px;line-height:1.75;color:var(--text2);padding:8px 0}
.side-list li i{color:var(--cyan);font-size:13px;margin-top:5px}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px;color:var(--text2);padding:9px 0;border-bottom:1px dashed var(--line)}
.side-links a:last-child{border-bottom:0}
.side-links a:hover{color:var(--brand)}
.side-links a i{font-size:12px;color:var(--text3)}

/* ===== 相关内容卡 ===== */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rcard{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.rcard:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#D6CCF8}
.rcard figure{margin:0;aspect-ratio:16/10;overflow:hidden;background:var(--brand-soft)}
.rcard figure img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.rcard:hover figure img{transform:scale(1.04)}
.rcard-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rcard-body h3{font-size:18px;line-height:1.5}
.rcard-body h3 a{color:var(--text)}
.rcard-body h3 a:hover{color:var(--brand)}
.rcard-body p{font-size:14px;line-height:1.75;color:var(--text2)}
.rcard-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text3)}

/* ===== FAQ ===== */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:18px;
  overflow:hidden;transition:box-shadow var(--ease),border-color var(--ease);
}
.faq-item.open{border-color:#CFC4F7;box-shadow:var(--sh)}
.faq-item.open::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--grad)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;padding:20px 24px;font-size:17px;font-weight:600;color:var(--text);
  min-height:60px;transition:color var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-item.open .faq-q{color:var(--brand)}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:18px;line-height:1;
  transition:background var(--ease),color var(--ease);
}
.faq-item.open .faq-icon{background:var(--brand);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-item.open .faq-a{max-height:460px}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--text2)}

/* ===== CTA ===== */
.cta-section{padding:0 0 var(--pad)}
.cta-card{
  position:relative;overflow:hidden;background:var(--dark);border-radius:28px;
  padding:56px;display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center;
  box-shadow:0 20px 50px rgba(23,18,51,.28);
}
.cta-card::before{
  content:"";position:absolute;top:-45%;right:-12%;width:54%;height:190%;
  background:var(--grad);opacity:.3;transform:rotate(18deg);pointer-events:none;
}
.cta-card > *{position:relative;z-index:1}
.cta-card h2{color:#fff;font-size:30px;line-height:1.4}
.cta-card p{margin-top:12px;font-size:15px;color:#B9B2D6;max-width:460px}
.cta-form{display:flex;gap:12px}
.cta-form input{
  flex:1;height:52px;border-radius:14px;padding:0 18px;font-size:15px;
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.08);color:#fff;
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.cta-form input::placeholder{color:#B0A8D2}
.cta-form input:focus{outline:none;border-color:var(--brand);background:rgba(255,255,255,.13);box-shadow:0 0 0 3px rgba(90,52,232,.35)}
.cta-tip{margin-top:12px;font-size:13px;color:var(--cyan)}
.cta-tip[hidden]{display:none}

/* ===== 页脚 ===== */
.site-footer{background:var(--dark);color:#B9B2D6;padding:72px 0 28px}
.site-footer .wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.site-footer .brand{position:static;transform:none;margin-bottom:16px}
.site-footer .brand-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;color:#A79FD0;max-width:340px}
.footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-links a{display:block;font-size:14px;color:#A79FD0;padding:6px 0;transition:color var(--ease),transform var(--ease)}
.footer-links a:hover{color:var(--cyan);transform:translateX(2px)}
.footer-contact ul li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#A79FD0;padding:6px 0;line-height:1.7;word-break:break-all}
.footer-contact i{font-size:18px;color:var(--cyan);margin-top:4px}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:#8B83B4;
}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  :root{--pad:72px}
  .nav-burger{
    display:inline-flex;align-items:center;justify-content:center;
    position:absolute;left:16px;top:50%;transform:translateY(-50%);
    width:42px;height:42px;border-radius:12px;border:1px solid var(--line);z-index:3;
  }
  .nav-burger span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:background var(--ease)}
  .nav-burger span::before,.nav-burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform var(--ease)}
  .nav-burger span::before{top:-6px}
  .nav-burger span::after{top:6px}
  body.nav-open .nav-burger span{background:transparent}
  body.nav-open .nav-burger span::before{transform:translateY(6px) rotate(45deg)}
  body.nav-open .nav-burger span::after{transform:translateY(-6px) rotate(-45deg)}
  .nav-icon-btn{display:inline-flex;position:absolute;right:16px;top:50%;transform:translateY(-50%)}
  .nav-side{display:none}
  .nav-inner{padding:0 70px}
  body.nav-open{overflow:hidden}
  body.nav-open .nav-inner{
    position:fixed;inset:0;height:100vh;display:flex;flex-direction:column;align-items:stretch;
    justify-content:flex-start;gap:0;padding:88px 24px 32px;background:#fff;overflow-y:auto;
  }
  body.nav-open .nav-burger{position:fixed;left:16px;top:16px;transform:none}
  body.nav-open .nav-icon-btn{display:none}
  body.nav-open .nav-side{display:flex;flex-direction:column;align-items:stretch;gap:0}
  body.nav-open .nav-side.left{order:3}
  body.nav-open .nav-side.right{order:4}
  body.nav-open .brand{position:fixed;left:24px;top:20px;transform:none;order:1;margin:0 0 20px}
  body.nav-open .brand-text{font-size:17px}
  body.nav-open .nav-link{font-size:20px;padding:0;line-height:64px;border-bottom:1px solid var(--line)}
  body.nav-open .nav-link::after{display:none}
  body.nav-open .nav-link.active{color:var(--brand)}
  body.nav-open .nav-cta{margin-top:24px;width:100%;line-height:1.4;padding:16px 24px;order:5}
  .article-grid{grid-template-columns:minmax(0,1fr)}
  .side-col{position:static;top:auto;order:2}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-card{grid-template-columns:1fr;padding:44px 36px}
}
@media (max-width:768px){
  .article-main{padding:28px 22px}
  .article-title{font-size:28px}
  .sec-title{font-size:24px}
  .article-body{font-size:16.5px}
  .cta-card h2{font-size:24px}
}
@media (max-width:640px){
  :root{--pad:56px}
  .container,.grid-container{padding-left:16px;padding-right:16px}
  .article-title{font-size:24px;line-height:1.35}
  .article-cover{border-radius:18px}
  .article-wrap{padding:40px 0 56px}
  .article-main{padding:22px 18px;border-radius:18px}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-card{padding:34px 22px;border-radius:22px}
  .cta-form{flex-direction:column}
  .cta-form .btn{width:100%}
  .article-foot{flex-direction:column;align-items:flex-start}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --primary:#5A34E8;
  --primary-deep:#3A1FA8;
  --primary-soft:#EDE8FE;
  --accent:#12C8B0;
  --warn:#FF7A3C;
  --bg:#F6F4FB;
  --dark:#171233;
  --line:#E6E1F5;
  --text:#1B1730;
  --text-2:#5C5678;
  --text-3:#8E88A6;
  --grad:linear-gradient(135deg,#5A34E8 0%,#7A4BF0 45%,#12C8B0 100%);
  --radius:20px;
  --radius-lg:24px;
  --shadow:0 8px 30px rgba(58,31,168,.10);
  --shadow-hover:0 16px 44px rgba(58,31,168,.18);
  --ease:.28s cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.1px;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);letter-spacing:0;}
p{margin:0 0 18px;}
h1{font-size:44px;line-height:1.25;}
h2{font-size:32px;line-height:1.35;}
h3{font-size:22px;line-height:1.5;font-weight:600;}
::selection{background:var(--primary);color:#fff;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(90,52,232,.35);outline-offset:2px;}

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

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease),background var(--ease);
}
.site-header.scrolled{box-shadow:0 6px 24px rgba(58,31,168,.08);background:#fff;}
.nav-inner{
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  height:72px;
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
}
.nav-side{display:flex;align-items:center;gap:20px;}
.nav-side.right{justify-content:flex-end;}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  padding:6px 2px;
  transition:color var(--ease);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  height:2px;width:0;
  background:var(--accent);
  border-radius:2px;
  transition:width var(--ease);
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after{width:60%;}
.nav-link.active{color:var(--primary);font-weight:600;}
.nav-link.active::after{width:60%;background:linear-gradient(90deg,var(--primary),var(--accent));}
.brand{display:flex;align-items:center;gap:10px;justify-self:center;}
.brand-mark{
  width:44px;height:44px;border-radius:14px;
  background:var(--grad);
  color:#fff;font-weight:700;font-size:15px;
  display:grid;place-items:center;
  box-shadow:0 8px 20px rgba(90,52,232,.28);
  flex:0 0 auto;
}
.brand-text{font-size:18px;font-weight:700;color:var(--text);white-space:nowrap;}
.nav-cta{padding:11px 22px;font-size:15px;}
.nav-burger{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  align-items:center;justify-content:center;
  cursor:pointer;
  transition:background var(--ease),border-color var(--ease);
}
.nav-burger span{
  position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--text);
  transition:background var(--ease);
}
.nav-burger span::before,
.nav-burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text);
  transition:transform var(--ease),top var(--ease);
}
.nav-burger span::before{top:-6px;}
.nav-burger span::after{top:6px;}
.nav-burger:hover{border-color:var(--primary);background:var(--primary-soft);}
.nav-open .nav-burger span{background:transparent;}
.nav-open .nav-burger span::before{top:0;transform:rotate(45deg);}
.nav-open .nav-burger span::after{top:0;transform:rotate(-45deg);}
.nav-icon-btn{
  display:none;
  width:44px;height:44px;border-radius:12px;
  background:var(--primary-soft);color:var(--primary);
  align-items:center;justify-content:center;
  justify-self:end;
  transition:background var(--ease),color var(--ease);
}
.nav-icon-btn:hover{background:var(--primary);color:#fff;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;
  border-radius:999px;
  padding:14px 30px;
  font-size:16px;font-weight:600;
  cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  text-align:center;
}
.btn .arrow{transition:transform var(--ease);}
.btn-primary{
  background:var(--grad);
  color:#fff;
  box-shadow:0 8px 22px rgba(90,52,232,.24);
}
.btn-primary:hover{
  box-shadow:0 12px 28px rgba(90,52,232,.35);
  transform:translateY(-2px);
}
.btn-primary:hover .arrow{transform:translateX(4px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:#fff;
  color:var(--primary);
  border-color:var(--primary);
}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary-deep);}
.btn-ghost:active{transform:translateY(1px);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--text-2);font-weight:600;font-size:15px;
  border:0;background:none;cursor:pointer;
  transition:color var(--ease);
}
.btn-text .arrow{transition:transform var(--ease);}
.btn-text:hover{color:var(--accent);}
.btn-text:hover .arrow{transform:translateX(4px);}

/* ============ 通用区块 ============ */
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
.section.dark{background:var(--dark);color:#fff;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-block;
  font-size:13px;font-weight:600;color:var(--primary);
  background:var(--primary-soft);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:14px;
  letter-spacing:.5px;
}
.section-head p{color:var(--text-2);font-size:16px;margin:14px 0 0;}
.sec-title{position:relative;padding-left:16px;}
.sec-title::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--accent));
}

/* ============ 分类页 Hero ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  background:#2C1B7A;
  color:#fff;
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(120deg,rgba(58,31,168,.94) 0%,rgba(90,52,232,.86) 46%,rgba(18,200,176,.72) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
}
.page-hero::after{
  content:"";
  position:absolute;right:-140px;top:-120px;
  width:520px;height:520px;border-radius:50%;
  border:1px solid rgba(255,255,255,.14);
  box-shadow:0 0 0 60px rgba(255,255,255,.05),0 0 0 130px rgba(255,255,255,.03);
  opacity:.9;
  pointer-events:none;
}
.page-hero .wrap{position:relative;z-index:2;padding-top:56px;padding-bottom:56px;}
.crumb{font-size:13px;color:rgba(255,255,255,.75);margin-bottom:22px;display:flex;flex-wrap:wrap;gap:6px;align-items:center;}
.crumb a{color:rgba(255,255,255,.85);}
.crumb a:hover{color:#fff;}
.crumb .sep{opacity:.6;}
.crumb .now{color:#B9F4EC;font-weight:600;}
.page-hero h1{color:#fff;max-width:820px;font-size:40px;}
.page-hero .lead{
  margin-top:18px;max-width:620px;
  font-size:16px;line-height:1.85;color:rgba(255,255,255,.86);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-actions .btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.6);}
.hero-actions .btn-ghost:hover{background:rgba(255,255,255,.22);border-color:#fff;}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.stat-badge{
  display:flex;align-items:center;gap:10px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.16);
  border-radius:16px;
  padding:10px 16px;
  font-size:13px;
  color:rgba(255,255,255,.86);
}
.stat-badge .num{
  font-size:20px;font-weight:700;color:#FFC5A6;
  font-variant-numeric:tabular-nums;
  line-height:1;
}
.stat-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px rgba(18,200,176,.25);}

/* ============ 分类页布局 ============ */
.cat-layout{
  display:grid;
  grid-template-columns:250px minmax(0,1fr);
  gap:48px;
  align-items:start;
}
.cat-anchor{
  position:sticky;
  top:96px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px 18px;
  box-shadow:var(--shadow);
}
.cat-anchor h3{
  font-size:14px;font-weight:700;color:var(--text-3);
  letter-spacing:1px;margin-bottom:12px;padding-left:12px;
}
.anchor-list li + li{margin-top:4px;}
.anchor-list a{
  position:relative;
  display:block;
  padding:11px 14px;
  border-radius:12px;
  font-size:15px;
  color:var(--text-2);
  transition:background var(--ease),color var(--ease),padding-left var(--ease);
}
.anchor-list a::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--accent));
  opacity:0;transition:opacity var(--ease);
}
.anchor-list a:hover{background:var(--primary-soft);color:var(--primary);}
.anchor-list a.active{
  background:var(--primary-soft);
  color:var(--primary);
  font-weight:600;
  padding-left:20px;
}
.anchor-list a.active::before{opacity:1;}

.cat-content{display:grid;gap:32px;}
.flow-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:box-shadow var(--ease),transform var(--ease);
}
.flow-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);}
.flow-card .media{aspect-ratio:16/9;overflow:hidden;background:var(--primary-soft);}
.flow-card .media img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease);}
.flow-card:hover .media img{transform:scale(1.04);}
.flow-card .body{padding:28px 30px 30px;}
.flow-card .body h3{margin-bottom:12px;}
.flow-card .body p{color:var(--text-2);font-size:15px;margin-bottom:0;}

.text-block{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:36px 38px;
  box-shadow:var(--shadow);
}
.text-block h2{font-size:28px;margin-bottom:20px;}
.text-block p{color:var(--text-2);font-size:16px;line-height:1.85;}
.text-block p:last-child{margin-bottom:0;}
.text-block strong{color:var(--text);}

.point-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.point{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 24px;
  transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.point:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);border-color:rgba(90,52,232,.28);}
.point .ico{
  width:42px;height:42px;border-radius:12px;
  background:var(--primary-soft);color:var(--primary);
  display:grid;place-items:center;font-size:17px;margin-bottom:14px;
}
.point h3{font-size:18px;margin-bottom:8px;}
.point p{font-size:14px;color:var(--text-2);margin:0;line-height:1.8;}

.steps{display:grid;gap:0;}
.step{
  position:relative;
  display:grid;
  grid-template-columns:44px minmax(0,1fr);
  gap:20px;
  padding-bottom:28px;
}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";position:absolute;left:21px;top:50px;bottom:8px;width:2px;
  background:linear-gradient(180deg,rgba(90,52,232,.4),rgba(18,200,176,.14));
}
.step:last-child::before{display:none;}
.step-num{
  width:44px;height:44px;border-radius:50%;
  background:var(--grad);color:#fff;
  display:grid;place-items:center;
  font-weight:700;font-size:16px;
  font-variant-numeric:tabular-nums;
  box-shadow:0 8px 18px rgba(90,52,232,.25);
}
.step-body h3{font-size:18px;margin-bottom:8px;}
.step-body p{font-size:15px;color:var(--text-2);margin:0;}

.tip-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.tip-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  transition:box-shadow var(--ease),transform var(--ease);
  position:relative;
}
.tip-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);}
.tip-card .tag{
  display:inline-block;
  font-size:12px;font-weight:600;
  color:var(--primary);
  background:var(--primary-soft);
  border-radius:999px;
  padding:4px 12px;
  margin-bottom:14px;
}
.tip-card .tag.warm{color:#B8491B;background:#FFEDE3;}
.tip-card h3{font-size:17px;margin-bottom:10px;}
.tip-card p{font-size:14px;color:var(--text-2);margin:0;line-height:1.8;}
.tip-card .stamp{
  position:absolute;right:20px;top:22px;
  font-size:12px;font-weight:700;color:var(--warn);
  font-variant-numeric:tabular-nums;
}

.quote-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.quote{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 26px 24px;
  box-shadow:var(--shadow);
}
.quote p{font-size:15px;color:var(--text);margin-bottom:18px;line-height:1.85;}
.quote .who{display:flex;align-items:center;gap:12px;}
.avatar{
  width:40px;height:40px;border-radius:50%;
  background:var(--primary-soft);color:var(--primary);
  display:grid;place-items:center;font-weight:700;font-size:14px;
}
.quote .who span{font-size:13px;color:var(--text-3);}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  transition:box-shadow var(--ease),border-color var(--ease);
}
.faq-item.open{box-shadow:var(--shadow);border-color:rgba(90,52,232,.3);}
.faq-q{
  position:relative;
  width:100%;
  min-height:60px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 24px;
  border:0;
  background:none;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--text);
  cursor:pointer;
  transition:color var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-item.open .faq-q{color:var(--primary);}
.faq-item.open .faq-q::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,var(--primary),var(--accent));
}
.faq-icon{
  flex:0 0 auto;
  width:28px;height:28px;border-radius:50%;
  border:1px solid var(--line);
  display:grid;place-items:center;
  font-size:15px;font-weight:700;color:var(--primary);
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.faq-item.open .faq-icon{background:var(--primary);color:#fff;border-color:var(--primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height var(--ease);}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--text-2);}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--dark);
  border-radius:28px;
  padding:52px 48px;
  color:#fff;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,420px);
  gap:36px;
  align-items:center;
}
.cta-band::before{
  content:"";
  position:absolute;
  right:-40px;bottom:-120px;
  width:420px;height:420px;
  background:var(--grad);
  transform:rotate(24deg);
  border-radius:60px;
  opacity:.75;
}
.cta-band::after{
  content:"";
  position:absolute;
  left:-120px;top:-160px;
  width:380px;height:380px;border-radius:50%;
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 0 0 50px rgba(255,255,255,.05);
  opacity:.9;
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{color:#fff;font-size:30px;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.78);font-size:15px;margin:0;}
.cta-form{display:flex;gap:12px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:16px;padding:10px;}
.cta-form input{
  flex:1 1 auto;min-width:0;
  border:1px solid transparent;
  border-radius:14px;
  padding:13px 16px;
  background:rgba(255,255,255,.94);
  color:var(--text);
  font-size:15px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.cta-form input::placeholder{color:var(--text-3);}
.cta-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(90,52,232,.28);}
.cta-form .btn{flex:0 0 auto;}
.cta-note{margin-top:14px;font-size:13px;color:#B9F4EC;min-height:20px;}
.cta-links{display:flex;flex-wrap:wrap;gap:14px;margin-top:22px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,.72);
  padding:72px 0 28px;
  margin-top:96px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
}
.site-footer .brand{margin-bottom:18px;}
.site-footer .brand-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);margin:0;max-width:320px;}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:700;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.66);transition:color var(--ease),transform var(--ease);}
.footer-links a:hover{color:var(--accent);transform:translateX(2px);}
.footer-contact ul{display:grid;gap:12px;}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:rgba(255,255,255,.66);}
.footer-contact i{font-size:15px;color:var(--accent);line-height:1.7;width:18px;text-align:center;}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  h1{font-size:34px;}
  h2{font-size:26px;}
  .section{padding:72px 0;}
  .section.tight{padding:56px 0;}
  .cat-layout{grid-template-columns:1fr;gap:28px;}
  .cat-anchor{
    position:static;
    padding:14px;
    box-shadow:none;
  }
  .cat-anchor h3{display:none;}
  .anchor-list{
    display:flex;
    gap:10px;
    overflow-x:auto;
    padding-bottom:4px;
    scrollbar-width:thin;
  }
  .anchor-list li + li{margin-top:0;}
  .anchor-list a{
    white-space:nowrap;
    border:1px solid var(--line);
    border-radius:999px;
    padding:8px 16px;
    font-size:14px;
  }
  .anchor-list a::before{display:none;}
  .anchor-list a.active{padding-left:16px;border-color:var(--primary);}
  .tip-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .quote-grid{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:40px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}

  /* 移动端导航 */
  .nav-inner{grid-template-columns:44px 1fr 44px;padding:0 16px;height:72px;gap:8px;}
  .nav-burger{display:flex;grid-column:1;}
  .brand{grid-column:2;justify-self:center;}
  .brand-text{font-size:16px;}
  .brand-mark{width:38px;height:38px;border-radius:12px;font-size:13px;}
  .nav-icon-btn{display:flex;grid-column:3;}
  .nav-side{display:none;}
  .nav-open .nav-inner{
    position:fixed;
    inset:0;
    height:auto;
    display:grid;
    grid-template-columns:44px 1fr 44px;
    grid-template-rows:72px auto auto 1fr;
    align-items:center;
    gap:0;
    padding:0 20px 28px;
    background:#fff;
    overflow-y:auto;
    z-index:80;
  }
  .nav-open .nav-burger{grid-column:1;grid-row:1;}
  .nav-open .brand{grid-column:2;grid-row:1;}
  .nav-open .nav-icon-btn{grid-column:3;grid-row:1;}
  .nav-open .nav-side{
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    grid-column:1 / -1;
  }
  .nav-open .nav-side.left{grid-row:2;padding-top:8px;}
  .nav-open .nav-side.right{grid-row:3;}
  .nav-open .nav-link{
    height:56px;
    display:flex;
    align-items:center;
    font-size:19px;
    border-bottom:1px solid var(--line);
    padding:0;
  }
  .nav-open .nav-link::after{display:none;}
  .nav-open .nav-cta{
    margin-top:24px;
    width:100%;
    height:52px;
    font-size:16px;
  }
}

@media (max-width:768px){
  .page-hero h1{font-size:30px;}
  .page-hero .wrap{padding-top:44px;padding-bottom:44px;}
  .hero-stats{gap:10px;}
  .stat-badge{padding:9px 13px;}
  .text-block{padding:26px 22px;}
  .flow-card .body{padding:22px;}
  .point-grid{grid-template-columns:1fr;}
  .tip-grid{grid-template-columns:1fr;}
  .quote-grid{grid-template-columns:1fr;}
  .cta-band{padding:34px 24px;border-radius:24px;}
  .cta-form{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding:56px 0 24px;margin-top:72px;}
  .footer-bottom{flex-direction:column;}
}

@media (max-width:520px){
  .wrap{padding:0 16px;}
  h1{font-size:26px;}
  h2{font-size:22px;}
  .section{padding:56px 0;}
  .page-hero h1{font-size:24px;line-height:1.35;}
  .page-hero .lead{font-size:15px;}
  .hero-actions .btn{width:100%;}
  .hero-stats{display:grid;grid-template-columns:repeat(2,1fr);}
  .stat-badge{flex-direction:column;align-items:flex-start;gap:6px;}
  .faq-q{font-size:16px;padding:16px 18px;}
  .faq-a-inner{padding:0 18px 18px;}
  .cta-band h2{font-size:22px;}
  .brand-text{font-size:15px;}
}

/* roulang page: category2 */
:root{
  --brand:#5A34E8;
  --brand-deep:#3A1FA8;
  --brand-soft:#EDE8FE;
  --accent:#12C8B0;
  --orange:#FF7A3C;
  --bg:#F6F4FB;
  --dark:#171233;
  --line:#E6E1F5;
  --text:#1B1730;
  --text-2:#5C5678;
  --text-3:#8E88A6;
  --radius:20px;
  --radius-lg:24px;
  --radius-sm:12px;
  --shadow:0 8px 30px rgba(58,31,168,.10);
  --shadow-hover:0 16px 44px rgba(58,31,168,.18);
  --grad:linear-gradient(135deg,#5A34E8 0%,#7A4BF0 45%,#12C8B0 100%);
  --ease:cubic-bezier(.2,.7,.3,1);
  --space:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(90,52,232,.35);border-radius:12px;}
::selection{background:var(--brand-soft);color:var(--brand-deep);}

.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--space) 0;}
.section-tight{padding:72px 0;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,244,251,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.site-header.is-scrolled{
  background:#fff;
  box-shadow:0 6px 24px rgba(58,31,168,.08);
  border-bottom-color:var(--line);
}
.nav-inner{
  max-width:1200px;margin:0 auto;padding:0 24px;
  height:72px;display:flex;align-items:center;gap:16px;position:relative;
}
.nav-side{display:flex;align-items:center;gap:26px;flex:1;}
.nav-side.right{justify-content:flex-end;}
.nav-link{
  position:relative;font-size:16px;font-weight:500;color:var(--text-2);
  padding:8px 0;white-space:nowrap;transition:color .28s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--accent);border-radius:2px;transition:width .28s var(--ease);
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{width:60%;}
.nav-link.active{color:var(--brand);font-weight:600;}
.nav-link.active::after{width:60%;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad);color:#fff;
  font-size:15px;font-weight:700;display:flex;align-items:center;justify-content:center;
  letter-spacing:0;box-shadow:0 8px 20px rgba(90,52,232,.28);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.2px;color:var(--text);white-space:nowrap;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:none;cursor:pointer;border-radius:999px;
  padding:14px 30px;font-size:16px;font-weight:600;line-height:1;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),background .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease);
}
.btn .arrow{transition:transform .28s var(--ease);}
.btn:hover .arrow{transform:translateX(4px);}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 24px rgba(90,52,232,.24);}
.btn-primary:hover{box-shadow:0 12px 28px rgba(90,52,232,.35);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#fff;color:var(--brand);border:1px solid var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand-deep);}
.btn-soft{background:var(--brand-soft);color:var(--brand-deep);}
.btn-soft:hover{background:#E2DAFD;}
.btn-text{background:none;padding:6px 0;color:var(--text-2);font-weight:600;}
.btn-text:hover{color:var(--accent);}
.btn-text:hover .arrow{transform:translateX(4px);}
.nav-cta{padding:12px 22px;font-size:15px;}
.nav-burger,.nav-icon-btn{display:none;}
.nav-burger{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;
  position:relative;cursor:pointer;
}
.nav-burger span,.nav-burger span::before,.nav-burger span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--text);border-radius:2px;
  transform:translateX(-50%);transition:transform .28s var(--ease),opacity .28s var(--ease);
}
.nav-burger span{top:50%;margin-top:-1px;}
.nav-burger span::before{content:"";top:-6px;left:0;transform:none;}
.nav-burger span::after{content:"";top:6px;left:0;transform:none;}
.nav-burger.is-open span{background:transparent;}
.nav-burger.is-open span::before{transform:translateY(6px) rotate(45deg);}
.nav-burger.is-open span::after{transform:translateY(-6px) rotate(-45deg);}
.nav-icon-btn{
  width:42px;height:42px;border-radius:12px;background:#fff;border:1px solid var(--line);
  align-items:center;justify-content:center;color:var(--brand);
}
.nav-drawer{
  position:fixed;inset:72px 0 0 0;background:#fff;z-index:79;
  padding:8px 24px 32px;display:flex;flex-direction:column;
  transform:translateY(-12px);opacity:0;pointer-events:none;
  transition:opacity .28s var(--ease),transform .28s var(--ease);
  overflow-y:auto;
}
.nav-drawer.is-open{opacity:1;transform:translateY(0);pointer-events:auto;}
.nav-drawer a{
  font-size:20px;font-weight:600;color:var(--text);padding:0 4px;height:64px;
  display:flex;align-items:center;border-bottom:1px solid var(--line);
}
.nav-drawer a.active{color:var(--brand);}
.nav-drawer .btn{margin-top:24px;width:100%;height:52px;}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:24px 0 0;}
.breadcrumb{font-size:13px;color:var(--text-3);display:flex;flex-wrap:wrap;gap:6px;align-items:center;}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:var(--text-3);}
.breadcrumb .current{color:var(--brand);font-weight:600;}

/* ---------- 分类 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background-image:linear-gradient(115deg,rgba(23,18,51,.88) 0%,rgba(58,31,168,.82) 48%,rgba(18,200,176,.62) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
}
.page-hero-inner{
  max-width:1200px;margin:0 auto;padding:56px 24px;
  display:flex;align-items:center;gap:40px;position:relative;z-index:2;
}
.page-hero-copy{flex:1 1 60%;max-width:640px;}
.hero-chip{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);
  padding:7px 14px;border-radius:999px;margin-bottom:18px;
}
.hero-chip i{color:var(--accent);}
.page-hero h1{
  font-size:44px;line-height:1.25;font-weight:700;letter-spacing:0;
  padding-left:16px;border-left:4px solid transparent;
  border-image:var(--grad) 1;
  border-image-slice:1;
}
.page-hero p.hero-sub{
  margin-top:18px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.9);max-width:560px;
}
.page-hero-art{flex:0 0 300px;opacity:.42;}
.page-hero-art svg{width:100%;height:auto;}

/* ---------- 主布局：左锚点 + 右内容 ---------- */
.layout{padding:64px 0 var(--space);}
.anchor-col{position:relative;}
.anchor-box{
  position:sticky;top:104px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 20px;box-shadow:var(--shadow);
}
.anchor-box h2{
  font-size:14px;font-weight:700;color:var(--text-3);letter-spacing:1px;margin-bottom:14px;
}
.anchor-list li+li{margin-top:4px;}
.anchor-list a{
  display:block;font-size:15px;color:var(--text-2);padding:10px 12px;border-radius:12px;
  position:relative;transition:color .28s var(--ease),background .28s var(--ease);
}
.anchor-list a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:3px;background:var(--grad);
  transition:height .28s var(--ease);
}
.anchor-list a:hover{color:var(--brand);background:var(--brand-soft);}
.anchor-list a.active{color:var(--brand);font-weight:600;background:var(--brand-soft);}
.anchor-list a.active::before{height:22px;}
.anchor-tip{
  margin-top:18px;padding:14px;border-radius:var(--radius-sm);
  background:rgba(18,200,176,.10);border:1px solid rgba(18,200,176,.28);
  font-size:13px;line-height:1.75;color:#0C7F70;
}

.content-col > * + *{margin-top:28px;}
.panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:32px;box-shadow:var(--shadow);
}
.panel h2{
  font-size:32px;line-height:1.35;font-weight:700;
  padding-left:14px;border-left:4px solid transparent;
  border-image:var(--grad) 1;border-image-slice:1;margin-bottom:16px;
}
.panel h3{font-size:22px;line-height:1.5;font-weight:600;margin-bottom:10px;}
.panel p{color:var(--text-2);line-height:1.85;}
.panel p + p{margin-top:16px;}
.panel .lead{font-size:17px;color:var(--text);}

.media-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow);transition:box-shadow .28s var(--ease),transform .28s var(--ease);
}
.media-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);}
.media-figure{position:relative;aspect-ratio:16/9;background:var(--brand-soft);overflow:hidden;}
.media-figure img{width:100%;height:100%;object-fit:cover;transition:transform .28s var(--ease);}
.media-card:hover .media-figure img{transform:scale(1.04);}
.media-body{padding:26px 30px 30px;}
.media-body p{color:var(--text-2);margin-top:12px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;}
.tag{
  display:inline-flex;align-items:center;font-size:13px;font-weight:600;line-height:1;
  padding:7px 12px;border-radius:999px;background:var(--brand-soft);color:var(--brand-deep);
}
.tag.teal{background:rgba(18,200,176,.14);color:#0C7F70;}
.tag.warm{background:rgba(255,122,60,.14);color:#C1501B;}

.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:22px;}
.point{
  border:1px solid var(--line);border-radius:var(--radius-sm);padding:22px;
  background:#fff;transition:border-color .28s var(--ease),box-shadow .28s var(--ease),transform .28s var(--ease);
}
.point:hover{border-color:rgba(18,200,176,.55);box-shadow:var(--shadow-hover);transform:translateY(-4px);}
.point .point-icon{
  width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(18,200,176,.14);color:#0C7F70;font-size:15px;margin-bottom:14px;
}
.point h3{font-size:18px;font-weight:600;line-height:1.5;margin-bottom:8px;}
.point p{font-size:15px;color:var(--text-2);line-height:1.8;}

.steps{margin-top:24px;display:grid;gap:16px;}
.step{
  display:flex;gap:18px;align-items:flex-start;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius-sm);padding:22px;
  transition:border-color .28s var(--ease),transform .28s var(--ease),box-shadow .28s var(--ease);
}
.step:hover{border-color:rgba(90,52,232,.4);transform:translateY(-3px);box-shadow:var(--shadow);}
.step-no{
  flex:0 0 40px;width:40px;height:40px;border-radius:999px;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;
  font-variant-numeric:tabular-nums;box-shadow:0 8px 18px rgba(90,52,232,.28);
}
.step-body h3{font-size:18px;font-weight:600;margin-bottom:6px;}
.step-body p{font-size:15px;color:var(--text-2);line-height:1.8;}

.notice-card{
  border:1px solid rgba(18,200,176,.45);border-left:4px solid var(--accent);
  border-radius:var(--radius-sm);background:rgba(18,200,176,.07);padding:26px 28px;
}
.notice-card h3{color:#0C7F70;}
.notice-card p{color:#12635A;}
.notice-list{margin-top:14px;}
.notice-list li{position:relative;padding-left:20px;font-size:15px;line-height:1.85;color:#12635A;}
.notice-list li+li{margin-top:8px;}
.notice-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;
  background:var(--accent);
}

.badge-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px;}
.badge{
  display:flex;align-items:center;gap:12px;background:var(--brand-soft);
  border-radius:16px;padding:14px 18px;
}
.badge .dot{width:10px;height:10px;border-radius:50%;background:var(--accent);flex:0 0 10px;}
.badge .num{font-size:22px;font-weight:700;color:var(--orange);font-variant-numeric:tabular-nums;line-height:1;}
.badge .badge-label{font-size:13px;color:var(--text-2);line-height:1.5;}

/* ---------- FAQ ---------- */
.faq-head{max-width:720px;margin-bottom:32px;}
.faq-head h2{
  font-size:32px;font-weight:700;line-height:1.35;padding-left:14px;
  border-left:4px solid transparent;border-image:var(--grad) 1;border-image-slice:1;
}
.faq-head p{margin-top:14px;color:var(--text-2);}
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.faq-item.is-open{border-color:rgba(90,52,232,.35);box-shadow:var(--shadow);}
.faq-q{
  width:100%;background:none;border:none;text-align:left;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:18px 24px;font-size:17px;font-weight:600;color:var(--text);
  position:relative;transition:color .28s var(--ease);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:3px;
  background:var(--grad);opacity:0;transition:opacity .28s var(--ease);
}
.faq-item.is-open .faq-q{color:var(--brand);}
.faq-item.is-open .faq-q::before{opacity:1;}
.faq-icon{
  flex:0 0 28px;width:28px;height:28px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--brand);
  font-size:14px;transition:transform .28s var(--ease),background .28s var(--ease),color .28s var(--ease);
}
.faq-item.is-open .faq-icon{background:var(--brand);color:#fff;transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s var(--ease);}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--text-2);}

/* ---------- CTA ---------- */
.cta-wrap{padding:0 0 var(--space);}
.cta-box{
  position:relative;overflow:hidden;background:var(--dark);color:#fff;
  border-radius:var(--radius-lg);padding:48px;
  display:flex;align-items:center;gap:40px;flex-wrap:wrap;
}
.cta-box::after{
  content:"";position:absolute;right:-60px;top:-80px;width:340px;height:340px;
  background:var(--grad);opacity:.9;transform:rotate(18deg);border-radius:60px;
  filter:blur(2px);z-index:0;
}
.cta-copy{flex:1 1 360px;position:relative;z-index:2;}
.cta-copy h2{font-size:32px;font-weight:700;line-height:1.35;}
.cta-copy p{margin-top:14px;color:rgba(255,255,255,.78);line-height:1.8;max-width:520px;}
.cta-form{position:relative;z-index:2;flex:1 1 380px;max-width:440px;}
.cta-form-row{display:flex;gap:12px;}
.cta-form input{
  flex:1;min-width:0;height:52px;padding:0 18px;border-radius:14px;
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.08);color:#fff;
  transition:border-color .28s var(--ease),box-shadow .28s var(--ease),background .28s var(--ease);
}
.cta-form input::placeholder{color:rgba(255,255,255,.55);}
.cta-form input:focus{border-color:var(--accent);background:rgba(255,255,255,.14);box-shadow:0 0 0 3px rgba(18,200,176,.3);}
.cta-form .btn-primary{height:52px;padding:0 26px;}
.cta-form-note{margin-top:12px;font-size:13px;color:rgba(255,255,255,.6);}
.cta-links{display:flex;gap:14px;flex-wrap:wrap;margin-top:22px;position:relative;z-index:2;width:100%;}
.cta-links .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4);}
.cta-links .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:72px 0 32px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.site-footer .brand-text{color:#fff;}
.site-footer .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:320px;}
.footer-links h4,.footer-contact h4{
  font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;
}
.footer-links a{
  display:block;font-size:14px;color:rgba(255,255,255,.62);padding:6px 0;
  transition:color .28s var(--ease),transform .28s var(--ease);
}
.footer-links a:hover{color:var(--accent);transform:translateX(2px);}
.footer-contact ul li{
  display:flex;align-items:flex-start;gap:10px;font-size:14px;color:rgba(255,255,255,.62);
  line-height:1.7;padding:6px 0;
}
.footer-contact ul li i{color:var(--accent);font-size:15px;margin-top:5px;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  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:1024px){
  :root{--space:72px;}
  .nav-side.left .nav-link:first-child{display:none;}
  .page-hero h1{font-size:36px;}
  .page-hero-art{flex:0 0 220px;}
  .panel h2{font-size:26px;}
  .faq-head h2{font-size:26px;}
  .cta-copy h2{font-size:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:820px){
  .nav-side{display:none;}
  .nav-burger{display:block;}
  .nav-icon-btn{display:flex;}
  .nav-inner{gap:12px;}
  .brand-text{font-size:16px;}
  .anchor-box{position:static;}
  .anchor-list{display:flex;gap:10px;overflow-x:auto;padding-bottom:6px;}
  .anchor-list li+li{margin-top:0;}
  .anchor-list a{white-space:nowrap;background:var(--brand-soft);padding:10px 16px;border-radius:999px;}
  .anchor-list a.active::before{display:none;}
  .anchor-box{padding:16px;}
  .anchor-tip{display:none;}
}
@media (max-width:640px){
  :root{--space:56px;}
  .wrap,.grid-container,.nav-inner,.page-hero-inner{padding-left:16px;padding-right:16px;}
  .page-hero-inner{flex-direction:column;align-items:flex-start;padding-top:48px;padding-bottom:48px;gap:24px;}
  .page-hero h1{font-size:30px;line-height:1.3;}
  .page-hero p.hero-sub{font-size:16px;}
  .page-hero-art{display:none;}
  .panel{padding:24px 20px;}
  .panel h2{font-size:24px;}
  .grid-2{grid-template-columns:1fr;}
  .media-body{padding:22px 20px 26px;}
  .cta-box{padding:32px 22px;}
  .cta-form-row{flex-direction:column;}
  .cta-form .btn-primary{width:100%;}
  .badge-row{gap:10px;}
  .badge{flex:1 1 calc(50% - 5px);}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .step{flex-direction:row;padding:18px;}
}

/* roulang page: category3 */
:root{
  --primary:#5A34E8;
  --primary-dark:#3A1FA8;
  --primary-light:#EDE8FE;
  --teal:#12C8B0;
  --orange:#FF7A3C;
  --bg:#F6F4FB;
  --dark:#171233;
  --line:#E6E1F5;
  --text:#1B1730;
  --text-2:#5C5678;
  --text-3:#8E88A6;
  --white:#ffffff;
  --grad:linear-gradient(135deg,#5A34E8 0%,#7A4BF0 45%,#12C8B0 100%);
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:24px;
  --sh-1:0 8px 30px rgba(58,31,168,.10);
  --sh-2:0 16px 44px rgba(58,31,168,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;border:0;}
a{color:inherit;text-decoration:none;transition:color .28s var(--ease),border-color .28s var(--ease);}
ul,ol{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4,p{margin:0;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
:focus-visible{outline:3px solid rgba(90,52,232,.35);outline-offset:2px;border-radius:8px;}
section[id],div[id]{scroll-margin-top:96px;}

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

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(246,244,251,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.site-header.is-stuck{
  background:#ffffff;
  border-bottom-color:var(--line);
  box-shadow:0 6px 24px rgba(58,31,168,.08);
}
.nav-inner{
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  height:72px;
  display:flex;
  align-items:center;
  gap:18px;
}
.nav-side{
  display:flex;
  align-items:center;
  gap:22px;
  flex:1 1 0;
  min-width:0;
}
.nav-side.left{justify-content:flex-end;}
.nav-side.right{justify-content:flex-start;}
.nav-link{
  position:relative;
  font-size:16px;
  font-weight:500;
  color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
  transition:color .28s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:-2px;
  width:0;
  height:2px;
  border-radius:2px;
  background:var(--teal);
  transform:translateX(-50%);
  transition:width .28s var(--ease);
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after{width:60%;}
.nav-link.active{color:var(--primary);font-weight:600;}
.nav-link.active::after{width:60%;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  padding:7px 16px 7px 8px;
  border-radius:999px;
  background:#ffffff;
  border:1px solid var(--line);
  box-shadow:0 6px 18px rgba(58,31,168,.08);
  transition:box-shadow .28s var(--ease),transform .28s var(--ease);
}
.brand:hover{box-shadow:0 10px 26px rgba(58,31,168,.16);transform:translateY(-1px);}
.brand-mark{
  width:36px;
  height:36px;
  border-radius:12px;
  background:var(--grad);
  color:#fff;
  display:grid;
  place-items:center;
  font-size:13px;
  font-weight:700;
  letter-spacing:.5px;
  flex:0 0 36px;
}
.brand-text{
  font-size:16px;
  font-weight:700;
  letter-spacing:.2px;
  color:var(--text);
  white-space:nowrap;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:999px;
  font-size:16px;
  font-weight:600;
  padding:14px 30px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),background .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease);
}
.btn .arrow{transition:transform .28s var(--ease);}
.btn:hover .arrow{transform:translateX(4px);}
.btn-primary{
  background:var(--grad);
  background-size:160% 160%;
  color:#fff;
  box-shadow:0 8px 22px rgba(90,52,232,.22);
}
.btn-primary:hover{
  background-position:100% 0;
  box-shadow:0 12px 28px rgba(90,52,232,.35);
  transform:translateY(-2px);
}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:#fff;
  color:var(--primary);
  border-color:var(--primary);
}
.btn-ghost:hover{background:var(--primary-light);border-color:var(--primary-dark);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.nav-cta{padding:10px 22px;font-size:15px;gap:6px;}
.nav-burger{
  display:none;
  width:44px;
  height:44px;
  border-radius:14px;
  border:1px solid var(--line);
  background:#fff;
  align-items:center;
  justify-content:center;
  flex:0 0 auto;
}
.nav-burger span{
  position:relative;
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--text);
  transition:background .2s var(--ease);
}
.nav-burger span::before,
.nav-burger span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--text);
  transition:transform .28s var(--ease);
}
.nav-burger span::before{top:-6px;}
.nav-burger span::after{top:6px;}
body.nav-open .nav-burger span{background:transparent;}
body.nav-open .nav-burger span::before{transform:translateY(6px) rotate(45deg);}
body.nav-open .nav-burger span::after{transform:translateY(-6px) rotate(-45deg);}
.nav-icon-btn{
  display:none;
  width:44px;
  height:44px;
  border-radius:14px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--primary);
  place-items:center;
  flex:0 0 auto;
}

/* ============ 页头 Banner ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  color:#fff;
  padding:56px 0 52px;
  background-image:
    linear-gradient(118deg,rgba(46,22,140,.95) 0%,rgba(90,52,232,.90) 46%,rgba(18,200,176,.74) 100%),
    url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-120px;
  top:-140px;
  width:420px;
  height:420px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.18);
  box-shadow:0 0 0 44px rgba(255,255,255,.06),0 0 0 92px rgba(255,255,255,.04);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  gap:40px;
}
.hero-copy{flex:1 1 auto;max-width:720px;min-width:0;}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.78);
  margin-bottom:18px;
}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{color:rgba(255,255,255,.45);}
.breadcrumb .now{color:#fff;font-weight:600;}
.page-hero h1{
  font-size:40px;
  line-height:1.28;
  font-weight:700;
  letter-spacing:0;
  margin-bottom:16px;
}
.hero-sub{
  font-size:16.5px;
  line-height:1.8;
  color:rgba(255,255,255,.86);
  max-width:640px;
  margin-bottom:22px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.hero-tags span{
  display:inline-flex;
  align-items:center;
  padding:7px 15px;
  border-radius:999px;
  font-size:13.5px;
  color:#fff;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.24);
}
.hero-art{
  flex:0 0 300px;
  display:flex;
  justify-content:center;
}
.hero-art .ring{
  width:220px;
  height:220px;
  border-radius:50%;
  border:1px dashed rgba(255,255,255,.4);
  display:grid;
  place-items:center;
  color:rgba(255,255,255,.9);
  font-size:38px;
}

/* ============ 主体布局 ============ */
.section{padding:72px 0;}
.section.tight{padding:0 0 80px;}
.layout{
  display:flex;
  align-items:flex-start;
  gap:36px;
}
.anchor-col{flex:0 0 262px;position:sticky;top:100px;}
.content-col{flex:1 1 0;min-width:0;}

.anchor-box{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:20px 18px;
  box-shadow:var(--sh-1);
}
.anchor-box h4{
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--text-3);
  margin-bottom:12px;
  padding-left:2px;
}
.anchor-nav{display:flex;flex-direction:column;gap:4px;}
.anchor-link{
  position:relative;
  display:block;
  padding:11px 12px 11px 14px;
  border-radius:var(--r-sm);
  font-size:15px;
  color:var(--text-2);
  transition:background .28s var(--ease),color .28s var(--ease),transform .28s var(--ease);
}
.anchor-link::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  width:3px;
  height:0;
  border-radius:3px;
  background:var(--grad);
  transform:translateY(-50%);
  transition:height .28s var(--ease);
}
.anchor-link:hover{background:var(--bg);color:var(--primary);transform:translateX(2px);}
.anchor-link.active{color:var(--primary);font-weight:600;background:var(--primary-light);}
.anchor-link.active::before{height:22px;}
.anchor-note{
  margin-top:16px;
  padding-top:16px;
  border-top:1px dashed var(--line);
  font-size:13px;
  line-height:1.75;
  color:var(--text-3);
}

.block{margin-bottom:32px;}
.block:last-child{margin-bottom:0;}
.sec-title{
  position:relative;
  font-size:24px;
  line-height:1.4;
  font-weight:700;
  padding-left:16px;
  margin-bottom:16px;
}
.sec-title::before{
  content:"";
  position:absolute;
  left:0;
  top:5px;
  bottom:5px;
  width:4px;
  border-radius:4px;
  background:var(--grad);
}
.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:var(--sh-1);
}
.card.plain{box-shadow:none;}
.prose p{
  color:var(--text-2);
  font-size:16px;
  line-height:1.85;
  margin-bottom:18px;
}
.prose p:last-child{margin-bottom:0;}
.prose strong{color:var(--text);font-weight:600;}
.lead-line{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:14px 16px;
  background:var(--primary-light);
  border-radius:var(--r-md);
  color:var(--primary-dark);
  font-size:15px;
  line-height:1.8;
  margin-bottom:20px;
}
.lead-line i{margin-top:5px;flex:0 0 auto;color:var(--primary);}

/* 图文横卡 */
.media-card{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  padding:0;
  overflow:hidden;
}
.media-card .thumb{
  position:relative;
  min-height:250px;
  overflow:hidden;
  background:var(--primary-light);
}
.media-card .thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .28s var(--ease);
}
.media-card:hover .thumb img{transform:scale(1.04);}
.media-card .body{padding:28px;display:flex;flex-direction:column;justify-content:center;gap:14px;}
.media-card .body h3{font-size:21px;line-height:1.5;font-weight:600;}
.media-card .body p{font-size:15.5px;line-height:1.85;color:var(--text-2);}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--text-2);
}
.text-link span{transition:transform .28s var(--ease);}
.text-link:hover{color:var(--teal);}
.text-link:hover span{transform:translateX(4px);}

/* 要点格 */
.points{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
  margin-top:20px;
}
.point{
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:20px;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.point:hover{transform:translateY(-4px);box-shadow:var(--sh-1);border-color:#D8D0F4;}
.point .pnum{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:30px;
  height:30px;
  padding:0 9px;
  border-radius:9px;
  background:var(--primary-light);
  color:var(--primary-dark);
  font-size:13.5px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  margin-bottom:12px;
}
.point h3{font-size:16.5px;font-weight:600;margin-bottom:8px;}
.point p{font-size:14.5px;line-height:1.8;color:var(--text-2);}

/* 步骤条 */
.steps{display:flex;flex-direction:column;gap:14px;margin-top:20px;}
.step{
  display:flex;
  gap:16px;
  align-items:flex-start;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:20px 22px;
  box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.step .idx{
  flex:0 0 34px;
  width:34px;
  height:34px;
  border-radius:50%;
  background:var(--primary);
  color:#fff;
  display:grid;
  place-items:center;
  font-size:15px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:6px;}
.step p{font-size:14.8px;line-height:1.8;color:var(--text-2);}

/* 表格 */
.table-scroll{overflow-x:auto;margin-top:20px;border-radius:var(--r-md);border:1px solid var(--line);background:#fff;}
.info-table{width:100%;border-collapse:collapse;min-width:560px;}
.info-table th{
  background:var(--primary-light);
  color:var(--primary-dark);
  text-align:left;
  font-size:14.5px;
  font-weight:600;
  padding:14px 16px;
  white-space:nowrap;
}
.info-table td{
  padding:14px 16px;
  border-top:1px solid var(--line);
  font-size:14.5px;
  line-height:1.7;
  color:var(--text-2);
}
.info-table tbody tr:nth-child(even){background:#FBFAFE;}
.info-table tbody tr:hover{background:#F5F2FE;}
.info-table td:first-child{color:var(--text);font-weight:600;}
.table-note{
  margin-top:14px;
  font-size:13.5px;
  color:var(--text-3);
  line-height:1.8;
}

/* FAQ */
.faq-list{margin-top:22px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.faq-item:hover{border-color:#D8D0F4;}
.faq-item.open{
  border-color:rgba(90,52,232,.32);
  box-shadow:inset 3px 0 0 0 var(--primary),var(--sh-1);
}
.faq-q{
  width:100%;
  min-height:60px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 20px;
  text-align:left;
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  color:var(--text);
  transition:color .28s var(--ease);
}
.faq-item.open .faq-q{color:var(--primary);}
.faq-q .ficon{
  flex:0 0 28px;
  width:28px;
  height:28px;
  border-radius:50%;
  border:1px solid var(--line);
  display:grid;
  place-items:center;
  font-size:15px;
  color:var(--primary);
  transition:transform .28s var(--ease),background .28s var(--ease),color .28s var(--ease);
}
.faq-item.open .ficon{
  background:var(--primary);
  color:#fff;
  border-color:var(--primary);
  transform:rotate(180deg);
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s var(--ease);
}
.faq-a-inner{
  padding:0 22px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}

/* 未解决区块 */
.solve-card{
  display:flex;
  align-items:center;
  gap:26px;
  justify-content:space-between;
  background:linear-gradient(120deg,#FFFFFF 0%,#F3F0FE 100%);
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  padding:32px;
}
.solve-card .txt{max-width:640px;}
.solve-card h3{font-size:20px;font-weight:600;margin-bottom:10px;}
.solve-card p{font-size:15px;line-height:1.85;color:var(--text-2);}
.solve-card .acts{flex:0 0 auto;display:flex;gap:12px;flex-wrap:wrap;}

/* CTA */
.cta{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-xl);
  background:var(--dark);
  padding:44px 44px;
  color:#fff;
  margin-top:44px;
}
.cta::after{
  content:"";
  position:absolute;
  right:-90px;
  top:-70px;
  width:320px;
  height:320px;
  border-radius:48px;
  background:var(--grad);
  opacity:.42;
  transform:rotate(24deg);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
}
.cta h2{font-size:26px;font-weight:700;line-height:1.45;margin-bottom:10px;}
.cta p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.74);max-width:460px;}
.cta-form{flex:0 0 auto;display:flex;gap:12px;align-items:center;}
.cta-form input{
  width:280px;
  padding:14px 18px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.08);
  color:#fff;
  font-size:15px;
  transition:border-color .28s var(--ease),box-shadow .28s var(--ease),background .28s var(--ease);
}
.cta-form input::placeholder{color:rgba(255,255,255,.55);}
.cta-form input:focus{
  outline:none;
  border-color:var(--teal);
  background:rgba(255,255,255,.12);
  box-shadow:0 0 0 3px rgba(18,200,176,.28);
}
.cta-form .btn-primary{box-shadow:0 10px 26px rgba(90,52,232,.4);}
.cta-tip{
  position:relative;
  z-index:2;
  margin-top:16px;
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,.72);
  padding:72px 0 26px;
  margin-top:80px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.site-footer .brand{
  background:rgba(255,255,255,.06);
  border-color:rgba(255,255,255,.14);
  box-shadow:none;
  margin-bottom:18px;
}
.site-footer .brand:hover{background:rgba(255,255,255,.1);}
.site-footer .brand-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px;}
.footer-links h4,
.footer-contact h4{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;}
.footer-links a{
  font-size:14px;
  color:rgba(255,255,255,.62);
  padding:6px 0;
  transition:color .28s var(--ease),transform .28s var(--ease);
}
.footer-links a:hover{color:var(--teal);transform:translateX(2px);}
.footer-contact ul{display:flex;flex-direction:column;gap:12px;}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  line-height:1.7;
  color:rgba(255,255,255,.62);
}
.footer-contact li i{font-size:18px;color:var(--teal);margin-top:2px;flex:0 0 auto;}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  padding-top:22px;
  font-size:13px;
  color:rgba(255,255,255,.45);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-side{
    order:6;
    display:none;
    flex:0 0 100%;
    width:100%;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:8px 0 4px;
  }
  body.nav-open .nav-side{display:flex;}
  .nav-side.left{justify-content:flex-start;}
  .nav-side.right{justify-content:flex-start;}
  .nav-link{
    font-size:18px;
    line-height:64px;
    width:100%;
    color:var(--text);
    border-bottom:1px solid var(--line);
  }
  .nav-link::after{display:none;}
  .nav-link.active{color:var(--primary);}
  .nav-cta{
    margin-top:18px;
    width:100%;
    line-height:1.2;
    padding:16px 22px;
    border-bottom:0;
  }
  .nav-inner{
    flex-wrap:wrap;
    height:auto;
    min-height:72px;
    padding:12px 16px;
    align-items:center;
    gap:12px;
  }
  .nav-burger{display:inline-flex;order:1;}
  .brand{order:2;margin:0 auto;padding:6px 14px 6px 7px;}
  .brand-mark{width:32px;height:32px;flex:0 0 32px;border-radius:10px;font-size:12px;}
  .brand-text{font-size:15px;}
  .nav-icon-btn{display:grid;order:3;}
  body.nav-open .site-header{background:#fff;box-shadow:0 16px 40px rgba(58,31,168,.16);max-height:100vh;overflow-y:auto;}
  .nav-inner{padding-bottom:0;}
  body.nav-open .nav-inner{padding-bottom:20px;}

  .hero-grid{flex-direction:column;gap:26px;align-items:flex-start;}
  .hero-art{display:none;}
  .page-hero h1{font-size:30px;}
  .layout{flex-direction:column;gap:24px;}
  .anchor-col{position:static;flex:1 1 auto;width:100%;}
  .anchor-box{padding:14px;box-shadow:none;}
  .anchor-box h4{display:none;}
  .anchor-nav{
    flex-direction:row;
    gap:10px;
    overflow-x:auto;
    padding-bottom:4px;
    -webkit-overflow-scrolling:touch;
  }
  .anchor-nav::-webkit-scrollbar{height:0;}
  .anchor-link{
    white-space:nowrap;
    padding:9px 16px;
    border:1px solid var(--line);
    border-radius:999px;
    background:#fff;
    font-size:14px;
  }
  .anchor-link::before{display:none;}
  .anchor-link.active{background:var(--primary-light);border-color:rgba(90,52,232,.28);}
  .anchor-note{display:none;}
  .media-card{grid-template-columns:1fr;}
  .media-card .thumb{min-height:200px;aspect-ratio:16/10;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-form{width:100%;flex-wrap:wrap;}
  .cta-form input{width:100%;}
  .cta-form .btn-primary{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .solve-card{flex-direction:column;align-items:flex-start;}
}

@media (max-width:768px){
  .section{padding:56px 0;}
  .wrap,.grid-container.wrap{padding-left:16px;padding-right:16px;}
  .nav-inner{padding-left:16px;padding-right:16px;}
  .page-hero{padding:44px 0 40px;}
  .page-hero h1{font-size:26px;line-height:1.35;}
  .hero-sub{font-size:15px;}
  .sec-title{font-size:21px;}
  .card{padding:22px;border-radius:var(--r-md);}
  .points{grid-template-columns:1fr;}
  .cta{padding:30px 22px;border-radius:var(--r-lg);}
  .cta h2{font-size:21px;}
  .cta::after{width:220px;height:220px;right:-70px;top:-60px;}
  .solve-card{padding:24px;}
  .media-card .body{padding:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .site-footer{padding:52px 0 22px;margin-top:60px;}
}

@media (max-width:520px){
  .brand-text{font-size:14px;}
  .brand{padding:5px 12px 5px 6px;}
  .nav-icon-btn,.nav-burger{width:40px;height:40px;border-radius:12px;}
  .page-hero h1{font-size:23px;}
  .hero-tags span{font-size:12.5px;padding:6px 12px;}
  .step{padding:16px 16px;}
  .step .idx{flex:0 0 30px;width:30px;height:30px;font-size:14px;}
  .faq-q{font-size:15.5px;padding:16px;}
  .faq-a-inner{padding:0 18px 18px;font-size:14.5px;}
  .solve-card .acts{width:100%;}
  .solve-card .acts .btn{width:100%;}
  .footer-contact li{font-size:13.5px;}
}