/* roulang page: index */
:root{
  --brand:#241A4A;
  --brand-2:#3A2A73;
  --brand-3:#5140A0;
  --accent:#C8F24D;
  --accent-hi:#D5F76B;
  --coral:#FF6B4A;
  --bg:#FAF8FF;
  --bg-alt:#F1EDFB;
  --bg-dark:#1A1333;
  --text:#2C2740;
  --text-2:#6B6580;
  --white:#FFFFFF;
  --white-2:#E8E4F5;
  --border:rgba(36,26,74,.10);
  --border-dark:rgba(255,255,255,.12);
  --radius-xl:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-1:0 8px 24px rgba(36,26,74,.08);
  --shadow-2:0 14px 36px rgba(36,26,74,.14);
  --nav-w:236px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --mono:ui-monospace,"DIN Alternate","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:16px}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
a:hover{color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
figure{margin:0}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
::selection{background:var(--accent);color:var(--bg-dark)}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 36px}

/* ---------- 左侧竖向导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
  background:linear-gradient(180deg,#241A4A 0%,#3A2A73 100%);
  display:flex;flex-direction:column;
  padding:26px 0 24px;z-index:60;
  overflow-y:auto;overflow-x:hidden;
}
.sidebar::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.06) 0 1px,transparent 1px 13px);
}
.sidebar>*{position:relative;z-index:2}
.brand{display:flex;align-items:center;gap:10px;color:#fff}
.sidebar .brand{padding:0 20px 24px;border-bottom:1px solid rgba(255,255,255,.12);margin-bottom:8px}
.brand-mark{
  width:26px;height:26px;flex:0 0 auto;border-radius:7px;
  background:linear-gradient(135deg,#C8F24D 0%,#8FD93A 100%);
  clip-path:polygon(0 0,100% 0,100% 100%,22% 100%);
}
.brand-text{display:flex;align-items:baseline;gap:3px;font-size:19px;font-weight:700;letter-spacing:.01em;color:#fff;line-height:1.2}
.brand-text em{font-style:normal;font-size:12px;font-weight:500;color:var(--accent);letter-spacing:.08em}
.nav-group{padding:16px 0}
.nav-group-title{padding:0 20px;margin-bottom:8px;font-size:12px;letter-spacing:.16em;color:rgba(255,255,255,.42)}
.nav-link{
  position:relative;display:flex;align-items:center;height:44px;padding:0 20px;
  font-size:15px;color:rgba(255,255,255,.78);
  transition:background-color .18s ease,color .18s ease;
}
.nav-link::before{
  content:"";position:absolute;left:0;top:50%;width:3px;height:22px;border-radius:0 3px 3px 0;
  background:var(--accent);transform:translateY(-50%) scaleY(0);transition:transform .2s ease;
}
.nav-link:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-link.is-active{background:rgba(255,255,255,.09);color:#fff;font-weight:600}
.nav-link.is-active::before{transform:translateY(-50%) scaleY(1)}
.sidebar-foot{margin-top:auto;padding:20px;border-top:1px solid rgba(255,255,255,.12)}
.sidebar-contact{margin-top:12px;font-size:13px;line-height:1.65;color:rgba(255,255,255,.5)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-pill);
  font-size:15.5px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
}
.btn-accent{background:var(--accent);color:var(--bg-dark);box-shadow:0 6px 18px rgba(200,242,77,.28)}
.btn-accent:hover{background:var(--accent-hi);color:var(--bg-dark);transform:translateY(-1px);box-shadow:0 12px 26px rgba(200,242,77,.4)}
.btn-accent:active{transform:translateY(0);box-shadow:0 4px 12px rgba(200,242,77,.28)}
.btn-ghost{background:transparent;color:var(--brand);border-color:rgba(36,26,74,.22)}
.btn-ghost:hover{background:rgba(36,26,74,.06);color:var(--brand);border-color:rgba(36,26,74,.42)}
.btn-block{width:100%}
.sidebar-foot .btn-block{height:46px;font-size:15px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--brand-3);
  border-bottom:2px solid transparent;transition:color .2s ease,border-color .2s ease;
}
.text-link:hover{color:var(--brand);border-bottom-color:var(--accent)}

/* ---------- 页面主体 ---------- */
.page{margin-left:var(--nav-w)}

/* ---------- 移动端顶栏 ---------- */
.mobilebar{display:none}

/* ---------- Hero ---------- */
.hero{position:relative;padding:88px 0 84px;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(135deg,rgba(36,26,74,.05) 0 1px,transparent 1px 14px);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:20px;
  padding:6px 14px;border-radius:var(--radius-pill);
  font-size:13px;letter-spacing:.06em;color:var(--brand-3);
  background:rgba(81,64,160,.08);border:1px solid rgba(81,64,160,.18);
}
.hero-title{font-size:48px;line-height:1.15;font-weight:800;letter-spacing:-.01em;color:var(--brand);margin-bottom:20px}
.hero-sub{font-size:17px;line-height:1.8;color:var(--text-2);max-width:520px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px}
.hero-stats li{
  min-width:136px;padding:12px 18px;background:#fff;
  border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow-1);
}
.hero-stats b{display:block;font-family:var(--mono);font-size:22px;line-height:1.35;letter-spacing:-.01em;color:var(--brand)}
.hero-stats span{font-size:12.5px;color:var(--text-2)}
.hero-media{position:relative}
.hero-media-frame{
  position:relative;overflow:hidden;border-radius:var(--radius-xl);
  aspect-ratio:4/3;box-shadow:var(--shadow-2);background:rgba(36,26,74,.08);
}
.hero-media-frame img{width:100%;height:100%;object-fit:cover}
.hero-media-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(36,26,74,.74) 0%,rgba(36,26,74,.2) 55%,rgba(200,242,77,.24) 100%);
}
.hero-badge{
  position:absolute;right:-12px;bottom:24px;z-index:3;
  display:flex;flex-direction:column;line-height:1.2;
  padding:10px 14px;border-radius:8px;
  background:var(--accent);color:var(--bg-dark);
  box-shadow:0 14px 30px rgba(36,26,74,.26);
}
.hero-badge b{font-family:var(--mono);font-size:20px;letter-spacing:-.01em}
.hero-badge span{font-size:11.5px;letter-spacing:.04em;opacity:.78}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-alt{background:var(--bg-alt)}
.section-dark{background:var(--bg-dark);color:#fff;position:relative;overflow:hidden}
.section-dark::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.6;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 1px,transparent 1px 14px);
}
.section-dark>.container{position:relative;z-index:2}
.section-head{max-width:740px;margin-bottom:48px}
.section-head h2{font-size:34px;line-height:1.25;font-weight:700;letter-spacing:-.01em;color:var(--brand);margin-bottom:14px}
.section-head p{font-size:16.5px;line-height:1.8;color:var(--text-2)}
.section-head-light h2{color:#fff}
.section-head-light p{color:rgba(255,255,255,.66)}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.section-head-row .text-link{padding-bottom:4px}

/* ---------- 卖点区 ---------- */
.feature-lead{
  display:grid;grid-template-columns:1.05fr 1fr;gap:52px;align-items:center;
  padding:32px;margin-bottom:28px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-xl);box-shadow:var(--shadow-1);
}
.feature-media{border-radius:var(--radius-md);overflow:hidden;aspect-ratio:16/10;background:rgba(36,26,74,.08)}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease}
.feature-lead:hover .feature-media img{transform:scale(1.03)}
.feature-body h3{font-size:22px;line-height:1.35;font-weight:700;color:var(--brand);margin-bottom:12px}
.feature-body p{color:var(--text-2);margin-bottom:18px}
.check-list{margin-bottom:22px}
.check-list li{position:relative;padding-left:22px;margin-bottom:9px;color:var(--text);font-size:15.5px}
.check-list li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:2px;background:var(--accent)}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-xl);
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(36,26,74,.3)}
.feature-card{padding:26px}
.feature-icon{
  width:46px;height:46px;margin-bottom:18px;border-radius:var(--radius-sm);
  display:grid;place-items:center;font-size:18px;
  background:rgba(81,64,160,.1);color:var(--brand-3);
}
.feature-card h3{font-size:18px;line-height:1.4;font-weight:700;color:var(--brand);margin-bottom:10px}
.feature-card p{font-size:15px;line-height:1.8;color:var(--text-2)}

/* ---------- 演示区 ---------- */
.demo-rail{
  display:flex;gap:24px;overflow-x:auto;padding:4px 4px 20px;
  scroll-snap-type:x mandatory;-ms-overflow-style:none;scrollbar-width:none;
}
.demo-rail::-webkit-scrollbar{display:none}
.demo-card{
  flex:0 0 320px;scroll-snap-align:start;overflow:hidden;
  background:#241A4A;border:1px solid var(--border-dark);border-radius:var(--radius-xl);
  box-shadow:0 14px 36px rgba(0,0,0,.35);
}
.demo-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease}
.demo-card:hover img{transform:scale(1.03)}
.demo-card figcaption{padding:14px 18px;font-size:14.5px;color:rgba(255,255,255,.82);border-top:1px solid var(--border-dark)}
.demo-foot{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:6px}
.dot-row{display:flex;gap:8px}
.dot-row span{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.24)}
.dot-row span.is-on{background:var(--accent)}

/* ---------- 证据区 ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.quote-card{padding:28px;display:flex;flex-direction:column}
.quote-mark{font-family:var(--mono);font-size:46px;line-height:1;color:rgba(200,242,77,.95);margin-bottom:4px;text-shadow:0 1px 0 rgba(36,26,74,.12)}
.quote-card p{flex:1;font-size:15.5px;line-height:1.85;color:var(--text);margin-bottom:20px}
.quote-card footer{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:16px;border-top:1px solid var(--border)}
.quote-name{font-size:14px;color:var(--text-2)}
.badge{
  display:inline-block;font-family:var(--mono);font-size:12px;letter-spacing:-.01em;
  padding:4px 10px;border-radius:8px;background:var(--accent);color:var(--bg-dark);
}
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  margin-top:56px;overflow:hidden;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-xl);box-shadow:var(--shadow-1);
}
.stat-strip>div{padding:26px 24px;border-right:1px solid var(--border)}
.stat-strip>div:last-child{border-right:0}
.stat-strip b{display:block;font-family:var(--mono);font-size:26px;line-height:1.35;letter-spacing:-.01em;color:var(--brand)}
.stat-strip span{font-size:13.5px;color:var(--text-2)}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{display:flex;flex-direction:column;overflow:hidden}
.news-thumb{aspect-ratio:16/10;overflow:hidden;background:rgba(36,26,74,.08)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.pill{
  align-self:flex-start;margin-bottom:14px;padding:4px 12px;
  font-size:12.5px;color:var(--brand-3);
  border:1px solid rgba(81,64,160,.28);border-radius:var(--radius-pill);
  transition:background-color .2s ease;
}
.news-card:hover .pill{background:rgba(36,26,74,.08)}
.news-title{
  font-size:18px;line-height:1.4;font-weight:700;color:var(--brand);margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-desc{
  flex:1;margin-bottom:16px;font-size:14.5px;line-height:1.8;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--border);font-size:13px;color:var(--text-2);
}
.news-meta time{font-family:var(--mono);letter-spacing:-.01em}
.arrow{color:var(--brand-3);transition:transform .2s ease}
.news-card:hover .arrow{transform:translateX(3px)}
.news-empty{
  min-height:360px;padding:64px 32px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-xl);box-shadow:var(--shadow-1);text-align:center;
}
.empty-art{position:relative;width:74px;height:74px;margin-bottom:8px;border-radius:18px;background:rgba(36,26,74,.08)}
.empty-art::after{content:"";position:absolute;inset:16px;border-radius:10px;background:linear-gradient(135deg,var(--accent) 0%,rgba(200,242,77,.3) 100%)}
.news-empty p{font-size:16.5px;font-weight:600;color:var(--brand)}
.news-empty .empty-sub{font-size:14px;font-weight:400;color:var(--text-2)}

/* ---------- 方案档位 ---------- */
.price-list{display:flex;flex-direction:column;gap:20px}
.price-row{
  position:relative;display:grid;grid-template-columns:1.05fr 1.55fr auto;
  gap:32px;align-items:center;padding:28px 32px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-xl);box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.price-row:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(36,26,74,.3)}
.price-row.is-featured{border:2px solid var(--accent)}
.ribbon{
  position:absolute;top:-12px;left:32px;padding:4px 12px;border-radius:8px;
  font-size:12.5px;font-weight:700;background:var(--accent);color:var(--bg-dark);
}
.price-name{font-size:20px;font-weight:700;color:var(--brand);margin-bottom:6px}
.price-note{font-size:14px;line-height:1.7;color:var(--text-2)}
.price-points{display:flex;flex-wrap:wrap;gap:10px 22px}
.price-points li{position:relative;padding-left:20px;font-size:14.5px;color:var(--text)}
.price-points li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:2px;background:var(--accent)}
.price-side{display:flex;flex-direction:column;align-items:flex-end;gap:12px}
.price-num{font-family:var(--mono);font-size:26px;font-weight:600;letter-spacing:-.01em;color:var(--coral)}
.price-num em{font-style:normal;font-size:13px;color:var(--text-2);margin-left:4px}

/* ---------- 常见问题 ---------- */
.faq-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}
.faq-intro{position:sticky;top:40px}
.faq-intro h2{font-size:34px;line-height:1.25;font-weight:700;letter-spacing:-.01em;color:var(--brand);margin-bottom:14px}
.faq-intro p{color:var(--text-2);margin-bottom:22px}
.faq-list.accordion{background:transparent;border:0;margin:0;list-style:none}
.faq-list .accordion-item{
  margin-bottom:14px;overflow:hidden;background:#fff;
  border:1px solid var(--border);border-radius:var(--radius-md);
  box-shadow:var(--shadow-1);transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-list .accordion-item:hover{box-shadow:var(--shadow-2)}
.faq-list .accordion-item.is-active{border-color:rgba(36,26,74,.24)}
.faq-list .accordion-title{
  position:relative;display:block;padding:18px 56px 18px 24px;
  font-size:17px;font-weight:600;line-height:1.5;color:var(--brand);
  background:transparent;border:0;transition:background-color .2s ease,color .2s ease;
}
.faq-list .accordion-title:hover{background:rgba(36,26,74,.03);color:var(--brand)}
.faq-list .accordion-title::before{
  content:"";position:absolute;right:25px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--brand-3);border-bottom:2px solid var(--brand-3);
  background:none;font-size:0;margin:0;transform:translateY(-70%) rotate(45deg);
  transition:transform .2s ease;
}
.faq-list .accordion-item.is-active .accordion-title::before{transform:translateY(-30%) rotate(-135deg)}
.faq-list .accordion-content{padding:0 24px 20px;border:0;background:#fff;color:var(--text-2);font-size:15px;line-height:1.85}

/* ---------- 收尾 CTA ---------- */
.cta-wrap{padding:96px 0}
.cta-band{
  position:relative;overflow:hidden;text-align:center;
  padding:70px 48px;border-radius:24px;
  background:linear-gradient(135deg,#241A4A 0%,#3A2A73 100%);
  box-shadow:0 20px 50px rgba(36,26,74,.28);
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.06) 0 1px,transparent 1px 14px);
}
.cta-band h2{position:relative;font-size:34px;line-height:1.25;font-weight:700;color:#fff;margin-bottom:14px}
.cta-band p{position:relative;max-width:640px;margin:0 auto 30px;color:rgba(255,255,255,.74);font-size:16.5px}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:center}
.cta-link{color:rgba(255,255,255,.82);border-bottom:2px solid transparent;transition:color .2s ease,border-color .2s ease}
.cta-link:hover{color:var(--accent);border-bottom-color:var(--accent)}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--bg-dark);color:rgba(255,255,255,.7);padding:72px 0 0}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.4;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 1px,transparent 1px 14px);
}
.site-footer>.container{position:relative;z-index:2}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:52px}
.footer-brand .brand{padding:0;margin-bottom:18px;border:0}
.footer-brand p{max-width:330px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.6)}
.footer-col h4{position:relative;padding-bottom:12px;margin-bottom:18px;font-size:15px;font-weight:700;color:#fff}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;background:var(--accent)}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.62);transition:color .2s ease}
.footer-col a:hover{color:var(--accent)}
.footer-contact p{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.62);margin-bottom:12px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;
  padding:22px 0;border-top:1px solid rgba(200,242,77,.22);
  font-size:13.5px;color:rgba(255,255,255,.45);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:80;
  display:inline-flex;align-items:center;gap:8px;
  height:50px;padding:0 24px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:700;background:var(--accent);color:var(--bg-dark);
  box-shadow:0 14px 32px rgba(200,242,77,.38);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .3s ease,transform .3s ease,background-color .2s ease;
}
.float-cta.is-show{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{background:var(--accent-hi);color:var(--bg-dark)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 32px}
  .hero-title{font-size:42px}
  .hero-grid{gap:40px}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .page{margin-left:0}
  .mobilebar{
    display:block;position:sticky;top:0;z-index:70;
    background:linear-gradient(135deg,#241A4A 0%,#3A2A73 100%);
    box-shadow:0 6px 20px rgba(36,26,74,.22);
  }
  .mobilebar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 20px}
  .mobilebar .brand{padding:0;border:0;margin:0}
  .mobilebar .brand-text{font-size:16px}
  .mobilebar .brand-text em{font-size:11px}
  .mobilebar .brand-mark{width:23px;height:23px}
  .menu-toggle{
    display:grid;place-items:center;width:42px;height:42px;
    border-radius:12px;background:rgba(255,255,255,.1);color:#fff;
    transition:background-color .2s ease;
  }
  .menu-toggle:hover{background:rgba(255,255,255,.18)}
  .menu-toggle i{font-size:17px}
  .mobile-menu{max-height:0;overflow:hidden;background:rgba(0,0,0,.18);transition:max-height .28s ease}
  .mobile-menu.is-open{max-height:560px;overflow-y:auto}
  .mobile-menu a{
    display:flex;align-items:center;justify-content:space-between;
    height:56px;padding:0 22px;font-size:15.5px;color:rgba(255,255,255,.86);
    border-bottom:1px solid rgba(255,255,255,.08);
  }
  .mobile-menu a::after{content:"›";font-size:20px;color:rgba(255,255,255,.4)}
  .mobile-menu a:hover,.mobile-menu a.is-active{background:rgba(255,255,255,.08);color:#fff}
  .mobile-menu .menu-cta{
    display:flex;align-items:center;justify-content:center;
    height:48px;margin:14px 18px 18px;border-bottom:0;
    background:var(--accent);color:var(--bg-dark);border-radius:var(--radius-pill);font-weight:700;
  }
  .mobile-menu .menu-cta::after{content:""}
  .mobile-menu .menu-cta:hover{background:var(--accent-hi);color:var(--bg-dark)}

  .section{padding:72px 0}
  .cta-wrap{padding:72px 0}
  .hero{padding:64px 0 56px}
  .hero::before{opacity:.7}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-title{font-size:36px}
  .hero-media{max-width:620px}
  .section-head h2{font-size:28px}
  .feature-lead{grid-template-columns:1fr;gap:28px;padding:24px}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .quote-grid{grid-template-columns:repeat(2,1fr)}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat-strip>div{border-right:1px solid var(--border);border-bottom:1px solid var(--border)}
  .stat-strip>div:nth-child(2n){border-right:0}
  .stat-strip>div:nth-child(3),.stat-strip>div:nth-child(4){border-bottom:0}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .faq-intro{position:static}
  .faq-intro h2{font-size:28px}
  .price-row{grid-template-columns:1fr;gap:20px;padding:24px}
  .price-side{flex-direction:row;align-items:center;justify-content:space-between;width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .float-cta{
    right:auto;left:50%;width:calc(100% - 32px);height:52px;justify-content:center;
    bottom:calc(16px + env(safe-area-inset-bottom,0px));
    transform:translateX(-50%) translateY(14px);
  }
  .float-cta.is-show{transform:translateX(-50%) translateY(0)}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .cta-wrap{padding:56px 0}
  .hero{padding:48px 0 44px}
  .hero-title{font-size:30px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{flex:1 1 auto}
  .hero-stats li{flex:1 1 calc(50% - 7px);min-width:0;padding:10px 14px}
  .hero-stats b{font-size:19px}
  .hero-badge{right:12px;bottom:12px}
  .section-head{margin-bottom:32px}
  .section-head h2{font-size:24px}
  .section-head p{font-size:15.5px}
  .section-head-row{flex-direction:column;align-items:flex-start;gap:12px}
  .feature-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .quote-grid{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr}
  .stat-strip>div{border-right:0 !important;border-bottom:1px solid var(--border) !important}
  .stat-strip>div:last-child{border-bottom:0 !important}
  .demo-card{flex:0 0 262px}
  .demo-foot{flex-direction:column;align-items:stretch;gap:16px}
  .dot-row{order:2;justify-content:center}
  .demo-foot .btn{order:1}
  .cta-band{padding:48px 24px;border-radius:20px}
  .cta-band h2{font-size:24px}
  .cta-band p{font-size:15.5px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-list .accordion-title{font-size:16px;padding:16px 50px 16px 20px}
  .price-name{font-size:18px}
  .price-num{font-size:22px}
}
@media (max-width:479px){
  .hero-title{font-size:26px}
  .btn{height:46px;padding:0 20px;font-size:15px}
  .hero-stats li{flex:1 1 100%}
}

/* roulang page: article */
:root{
  --brand:#241A4A;
  --brand-2:#3A2A73;
  --brand-3:#5140A0;
  --accent:#C8F24D;
  --accent-soft:rgba(200,242,77,.16);
  --coral:#FF6B4A;
  --bg:#FAF8FF;
  --bg-alt:#F1EDFB;
  --bg-dark:#1A1333;
  --text:#2C2740;
  --text-2:#6B6580;
  --text-inv:#FFFFFF;
  --text-inv-2:#E8E4F5;
  --line:rgba(36,26,74,.10);
  --line-inv:rgba(255,255,255,.12);
  --radius-xl:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-1:0 8px 24px rgba(36,26,74,.08);
  --shadow-2:0 14px 36px rgba(36,26,74,.14);
  --sidebar-w:236px;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --mono:ui-monospace,"DIN Alternate","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;padding:0;
  font-family:var(--sans);
  font-size:16.5px;line-height:1.85;
  color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-3);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-2)}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--brand);letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
::selection{background:var(--accent);color:var(--bg-dark)}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 28px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- 侧边导航 ---------- */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:var(--sidebar-w);z-index:60;
  display:flex;flex-direction:column;
  padding:26px 0 20px;
  background:linear-gradient(180deg,var(--brand) 0%,var(--brand-2) 100%);
  overflow-y:auto;
}
.sidebar::-webkit-scrollbar{width:4px}
.sidebar::-webkit-scrollbar-thumb{background:rgba(255,255,255,.18);border-radius:4px}
.brand{display:flex;align-items:center;gap:10px;padding:0 22px 26px;color:var(--text-inv)}
.brand:hover{color:var(--text-inv)}
.brand-mark{width:16px;height:16px;flex:0 0 auto;background:var(--accent);border-radius:4px;transform:rotate(45deg)}
.brand-text{display:flex;align-items:baseline;gap:3px}
.brand-text strong{font-size:19px;font-weight:800;letter-spacing:.5px}
.brand-text em{font-style:normal;font-size:12.5px;color:var(--accent);letter-spacing:1px}
.nav-collapse{display:flex;flex-direction:column;flex:1;min-height:0}
.nav-group{padding:0 14px 20px}
.nav-group-title{margin:0 0 8px;padding:0 8px;font-size:12px;letter-spacing:2px;color:rgba(255,255,255,.42);font-weight:500}
.nav-group ul{display:flex;flex-direction:column;gap:2px}
.nav-link{
  position:relative;display:flex;align-items:center;height:44px;padding:0 12px 0 20px;
  border-radius:10px;font-size:14.5px;color:var(--text-inv-2);
  transition:background .2s ease,color .2s ease;
}
.nav-link:hover{background:rgba(255,255,255,.06);color:var(--text-inv)}
.nav-link.is-active{background:rgba(255,255,255,.10);color:var(--text-inv);font-weight:600}
.nav-link.is-active::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:3px;background:var(--accent)}
.nav-link:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.sidebar-foot{margin-top:auto;padding:16px 20px 0;border-top:1px solid var(--line-inv)}
.sidebar-contact{margin-top:12px;font-size:12.5px;line-height:1.7;color:rgba(255,255,255,.55)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;margin-left:auto;
  background:transparent;border:1.5px solid var(--line-inv);border-radius:12px;
  color:var(--text-inv);font-size:16px;cursor:pointer;transition:background .2s ease
}
.nav-toggle:hover{background:rgba(255,255,255,.08)}
.nav-toggle:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:background .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--accent);color:var(--bg-dark)}
.btn-primary:hover{background:#D6F76B;color:var(--bg-dark);transform:translateY(-1px);box-shadow:0 10px 26px rgba(200,242,77,.38)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--brand)}
.btn-ghost:hover{background:rgba(36,26,74,.06);color:var(--brand);border-color:rgba(36,26,74,.28)}
.btn-ghost-inv{background:transparent;border-color:rgba(255,255,255,.42);color:var(--text-inv)}
.btn-ghost-inv:hover{background:rgba(255,255,255,.10);color:var(--text-inv)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn-block{width:100%}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand-3);border-bottom:2px solid transparent;transition:border-color .2s ease,color .2s ease}
.link-more:hover{border-color:var(--accent);color:var(--brand)}

/* ---------- 主区域 ---------- */
.page-main{margin-left:var(--sidebar-w);min-height:100vh}
.article-hero{
  position:relative;padding:56px 0 44px;
  background-image:linear-gradient(120deg,rgba(36,26,74,.94) 0%,rgba(58,42,115,.78) 58%,rgba(26,19,51,.62) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.05) 0 1px,transparent 1px 10px);
  opacity:.6;
}
.crumb{position:relative;z-index:2;display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13.5px;color:rgba(255,255,255,.62)}
.crumb a{color:rgba(255,255,255,.82)}
.crumb a:hover{color:var(--accent)}
.crumb .sep{color:rgba(255,255,255,.35)}
.crumb .current{
  max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:rgba(255,255,255,.58)
}
.article-head{position:relative;z-index:2;max-width:820px;margin-top:26px}
.article-title{
  font-size:38px;line-height:1.3;color:var(--text-inv);letter-spacing:-.01em;
  text-wrap:balance;
}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:14px;margin-top:20px;font-size:13.5px;color:rgba(255,255,255,.66)}
.article-meta time,.meta-read{font-family:var(--mono);letter-spacing:-.01em}
.pill{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border:1px solid rgba(255,255,255,.32);border-radius:var(--radius-pill);
  font-size:12.5px;color:var(--text-inv-2);
}
.head-rule{display:block;width:60px;height:4px;border-radius:2px;background:var(--accent);margin-top:26px}

/* ---------- 正文 ---------- */
.article-wrap{padding:60px 0 72px}
.article-shell{max-width:760px;margin:0 auto}
.article-body{font-size:16.5px;line-height:1.85;color:var(--text);word-break:break-word}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;margin:2em 0 .8em;padding-left:16px;
  font-size:26px;line-height:1.35;color:var(--brand);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:2px;background:var(--accent);
}
.article-body h3{margin:1.6em 0 .6em;font-size:20px;line-height:1.4;font-weight:700;color:var(--text)}
.article-body h4{margin:1.4em 0 .5em;font-size:17.5px;color:var(--text)}
.article-body ul{margin:0 0 1.2em;padding:0;list-style:none}
.article-body ul>li{position:relative;padding-left:22px;margin-bottom:.55em}
.article-body ul>li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:2px;background:var(--accent)}
.article-body ol{margin:0 0 1.2em;padding-left:1.4em;list-style:decimal}
.article-body ol>li{margin-bottom:.5em}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;border-left:4px solid var(--brand-3);
  background:var(--bg-alt);border-radius:0 12px 12px 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{width:100%;height:auto;border-radius:12px;margin:1.6em auto;box-shadow:var(--shadow-1)}
.article-body figure{margin:1.8em 0}
.article-body figcaption{margin-top:10px;text-align:center;font-size:13.5px;color:var(--text-2)}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:var(--bg-alt);font-weight:600;color:var(--brand)}
.article-body code{font-family:var(--mono);font-size:.92em;background:#F2F0F7;padding:2px 6px;border-radius:6px}
.article-body pre{background:#F2F0F7;padding:16px 18px;border-radius:12px;overflow-x:auto;margin:1.6em 0}
.article-body pre code{background:none;padding:0}
.article-body a{border-bottom:2px solid rgba(81,64,160,.25)}
.article-body a:hover{border-color:var(--accent)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}

/* ---------- 空态 ---------- */
.article-empty{
  text-align:center;padding:64px 32px;border:1px solid var(--line);
  border-radius:var(--radius-xl);background:#fff;box-shadow:var(--shadow-1);
}
.empty-icon{
  width:64px;height:64px;margin:0 auto 20px;border-radius:18px;
  display:flex;align-items:center;justify-content:center;
  background:var(--bg-alt);color:var(--brand-3);font-size:24px;
}
.article-empty h2{font-size:24px;margin-bottom:10px}
.article-empty p{color:var(--text-2);margin-bottom:24px;font-size:15.5px}

/* ---------- 相关推荐 ---------- */
.related{margin-top:72px;padding-top:44px;border-top:1px solid var(--line)}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px}
.related-head h2{font-size:24px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-xl);
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(36,26,74,.28)}
.card:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.card-cover{position:relative;aspect-ratio:16/10;background:rgba(36,26,74,.08);overflow:hidden}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease}
.card:hover .card-cover img{transform:scale(1.03)}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{
  font-size:18px;line-height:1.4;color:var(--brand);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body p{
  font-size:14.5px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-family:var(--mono);font-size:13px;color:var(--text-2)}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;
  border:1px solid rgba(36,26,74,.22);border-radius:var(--radius-pill);
  font-size:12.5px;color:var(--brand-3);background:transparent;
}
.related-back{display:flex;justify-content:center;margin-top:40px}

/* ---------- CTA ---------- */
.cta{
  position:relative;overflow:hidden;margin-top:72px;padding:64px 40px;
  border-radius:24px;text-align:center;
  background:linear-gradient(120deg,var(--brand) 0%,var(--brand-2) 55%,var(--brand-3) 100%);
  box-shadow:var(--shadow-2);
}
.cta::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.05) 0 1px,transparent 1px 12px);
}
.cta h2{position:relative;z-index:2;font-size:30px;line-height:1.3;color:var(--text-inv)}
.cta p{position:relative;z-index:2;margin:14px auto 30px;max-width:560px;font-size:15.5px;color:rgba(255,255,255,.72)}
.cta-actions{position:relative;z-index:2;display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:80;
  display:inline-flex;align-items:center;gap:8px;
  height:52px;padding:0 26px;border-radius:var(--radius-pill);
  background:var(--accent);color:var(--bg-dark);font-size:15px;font-weight:700;
  box-shadow:0 14px 32px rgba(36,26,74,.24);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease,background .22s ease;
}
.float-cta:hover{background:#D6F76B;color:var(--bg-dark);transform:translateY(-2px)}
.float-cta:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;padding:64px 0 0;
  background:var(--bg-dark);color:var(--text-inv-2);
  border-top:3px solid var(--accent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand{padding:0 0 18px}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:320px}
.footer-col h4{margin-bottom:16px;font-size:15px;color:var(--text-inv)}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66)}
.footer-col a:hover{color:var(--accent)}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6)}
.footer-col .btn{margin-top:16px}
.footer-bottom{
  margin-top:52px;padding:20px 0;border-top:1px solid var(--line-inv);
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom .container{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .article-title{font-size:34px}
  .container{padding:0 24px}
}
@media (max-width:1024px){
  .sidebar{
    position:sticky;top:0;width:100%;height:auto;bottom:auto;
    flex-direction:row;align-items:center;flex-wrap:wrap;
    padding:12px 16px;gap:10px;
  }
  .brand{padding:0;margin:0}
  .brand-text strong{font-size:16px}
  .brand-text em{font-size:11px}
  .nav-toggle{display:inline-flex}
  .nav-collapse{display:none;width:100%;padding-top:12px;border-top:1px solid var(--line-inv);margin-top:8px}
  .sidebar.is-open .nav-collapse{display:flex}
  .nav-group{padding:0 0 12px}
  .nav-link{height:56px;border-radius:12px;font-size:15px}
  .nav-link.is-active::before{top:16px;bottom:16px}
  .sidebar-foot{margin-top:0;padding:12px 0 4px;border-top:1px solid var(--line-inv)}
  .sidebar-contact{margin-top:10px}
  .page-main{margin-left:0}
  .article-hero{padding:44px 0 36px}
  .article-title{font-size:30px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta{padding:52px 28px}
  .cta h2{font-size:26px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .article-wrap{padding:44px 0 56px}
  .article-body{font-size:16px}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18px}
  .related-grid{grid-template-columns:1fr}
  .related-head{flex-direction:column;align-items:flex-start}
  .cta{margin-top:56px;padding:44px 22px;border-radius:20px}
  .cta h2{font-size:23px}
  .site-footer{margin-top:72px;padding-top:48px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-brand p{max-width:none}
  .float-cta{
    right:16px;left:16px;bottom:24px;width:auto;height:52px;justify-content:center;
  }
}
@media (max-width:480px){
  .article-title{font-size:25px}
  .article-meta{gap:10px;font-size:12.5px}
  .article-hero{padding:36px 0 30px}
  .related{margin-top:52px}
  .card-body{padding:18px 20px 20px}
  .crumb .current{max-width:180px}
}

/* roulang page: category1 */
:root{
  --brand:#241A4A;
  --brand-2:#3A2A73;
  --brand-3:#5140A0;
  --accent:#C8F24D;
  --accent-hover:#D6F871;
  --coral:#FF6B4A;
  --bg:#FAF8FF;
  --bg-alt:#F1EDFB;
  --dark:#1A1333;
  --text:#2C2740;
  --muted:#6B6580;
  --line:rgba(36,26,74,.10);
  --line-dark:rgba(255,255,255,.12);
  --white:#FFFFFF;
  --radius-xl:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-1:0 8px 24px rgba(36,26,74,.08);
  --shadow-2:0 14px 36px rgba(36,26,74,.14);
  --sidebar-w:236px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --mono:ui-monospace,"DIN Alternate","SFMono-Regular",Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;cursor:pointer;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
}
[id]{scroll-margin-top:88px;}

/* ---------- 布局容器 ---------- */
.container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 28px;
}
.site-main{margin-left:var(--sidebar-w);}

/* ---------- 左侧导航 ---------- */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  display:flex;
  flex-direction:column;
  gap:26px;
  padding:26px 18px 22px;
  background:linear-gradient(180deg,var(--brand) 0%,var(--brand-2) 100%);
  overflow-y:auto;
  z-index:60;
}
.sidebar::-webkit-scrollbar{width:5px;}
.sidebar::-webkit-scrollbar-thumb{background:rgba(255,255,255,.18);border-radius:999px;}
.brand{display:flex;align-items:center;gap:10px;}
.brand-mark{
  position:relative;
  flex:0 0 auto;
  width:30px;height:30px;
  border-radius:8px;
  background:linear-gradient(135deg,var(--accent) 0%,#93D82A 100%);
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:8px;
  border-radius:3px;
  background:var(--brand);
}
.brand-text{display:flex;align-items:baseline;gap:2px;line-height:1;}
.brand-text strong{font-size:19px;font-weight:700;color:#fff;letter-spacing:-.01em;}
.brand-text em{font-style:normal;font-size:12.5px;color:var(--accent);letter-spacing:.02em;}
.nav-group-title{
  font-size:12px;
  letter-spacing:.14em;
  color:rgba(232,228,245,.55);
  margin:0 0 8px 20px;
}
.nav-link{
  position:relative;
  display:flex;
  align-items:center;
  height:44px;
  padding:0 14px 0 20px;
  border-radius:10px;
  font-size:15px;
  color:rgba(232,228,245,.82);
  transition:background .2s ease,color .2s ease;
}
.nav-link:hover{background:rgba(255,255,255,.06);color:#fff;}
.nav-link.is-active{
  background:rgba(255,255,255,.09);
  color:#fff;
  font-weight:600;
}
.nav-link.is-active::before{
  content:"";
  position:absolute;
  left:8px;top:10px;bottom:10px;
  width:3px;
  border-radius:2px;
  background:var(--accent);
}
.sidebar-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;}
.sidebar-contact{
  font-size:12.5px;
  line-height:1.7;
  color:rgba(232,228,245,.6);
  text-align:center;
}

/* ---------- 移动端顶栏 ---------- */
.mobile-bar{
  display:none;
  position:sticky;
  top:0;
  z-index:70;
  height:64px;
  padding:0 18px;
  align-items:center;
  justify-content:space-between;
  background:linear-gradient(100deg,var(--brand) 0%,var(--brand-2) 100%);
}
.nav-toggle{
  width:44px;height:44px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  border:0;
  border-radius:12px;
  background:rgba(255,255,255,.08);
}
.nav-toggle-bar{
  width:18px;height:2px;
  border-radius:2px;
  background:#fff;
  transition:transform .2s ease,opacity .2s ease;
}
.mobile-nav{
  display:none;
  background:var(--brand);
  border-top:1px solid var(--line-dark);
}
.mobile-nav.is-open{display:block;}
.mobile-nav ul li a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:56px;
  padding:0 20px;
  font-size:15.5px;
  color:rgba(232,228,245,.86);
  border-bottom:1px solid rgba(255,255,255,.07);
}
.mobile-nav ul li a::after{
  content:"›";
  font-size:20px;
  color:rgba(232,228,245,.45);
}
.mobile-nav ul li a.is-active{color:#fff;font-weight:600;}
.mobile-nav ul li a.is-active::before{
  content:"";
  width:3px;height:18px;
  border-radius:2px;
  background:var(--accent);
  margin-right:10px;
}
.mobile-nav .mobile-cta{padding:16px 20px 22px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border:0;
  border-radius:var(--radius-pill);
  font-size:15.5px;
  font-weight:600;
  letter-spacing:.01em;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease;
}
.btn-accent{
  background:var(--accent);
  color:var(--dark);
  box-shadow:0 6px 18px rgba(200,242,77,.28);
}
.btn-accent:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 12px 26px rgba(200,242,77,.34);}
.btn-accent:active{transform:translateY(0);box-shadow:0 4px 12px rgba(200,242,77,.24);}
.btn-outline{
  background:transparent;
  border:1.5px solid rgba(255,255,255,.55);
  color:#fff;
}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-1px);}
.btn-outline-dark{
  background:transparent;
  border:1.5px solid var(--brand);
  color:var(--brand);
}
.btn-outline-dark:hover{background:rgba(36,26,74,.08);transform:translateY(-1px);}
.btn-block{width:100%;}
.link-underline{
  display:inline-block;
  font-size:15px;
  font-weight:600;
  color:var(--brand);
  border-bottom:2px solid transparent;
  transition:border-color .2s ease,color .2s ease;
}
.link-underline:hover{border-bottom-color:var(--accent);}
.link-underline.on-dark{color:#fff;}
.link-underline.on-dark:hover{border-bottom-color:var(--accent);}

/* ---------- 顶部横幅 ---------- */
.page-banner{
  position:relative;
  padding:60px 0 56px;
  min-height:300px;
  color:#fff;
  background-image:
    linear-gradient(100deg,rgba(36,26,74,.95) 0%,rgba(58,42,115,.80) 50%,rgba(81,64,160,.42) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-banner::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 1px,transparent 1px 12px);
  pointer-events:none;
}
.banner-inner{position:relative;z-index:1;max-width:780px;}
.breadcrumb{margin-bottom:26px;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;}
.breadcrumb a{color:rgba(232,228,245,.78);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb li[aria-current]{color:#fff;}
.crumb-sep{color:rgba(232,228,245,.4);}
.page-banner h1{
  font-size:40px;
  line-height:1.22;
  letter-spacing:-.015em;
  font-weight:700;
  margin-bottom:18px;
}
.banner-lead{
  font-size:17px;
  line-height:1.8;
  color:rgba(232,228,245,.86);
  max-width:640px;
}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:6px 14px;
  border:1px solid rgba(255,255,255,.4);
  border-radius:var(--radius-pill);
  font-size:12.5px;
  color:#fff;
  transition:background .2s ease,border-color .2s ease;
}
.tag:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.7);}
.tag-dark{
  border-color:var(--line);
  color:var(--brand);
}
.tag-dark:hover{background:rgba(36,26,74,.08);border-color:rgba(36,26,74,.3);}

/* ---------- 文档式布局 ---------- */
.doc-layout{
  display:grid;
  grid-template-columns:238px minmax(0,1fr);
  gap:52px;
  padding:72px 0 88px;
  align-items:start;
}
.doc-toc{
  position:sticky;
  top:32px;
  padding:24px 20px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow-1);
}
.toc-title{
  font-size:12.5px;
  letter-spacing:.14em;
  color:var(--muted);
  margin-bottom:14px;
}
.toc-list li + li{margin-top:2px;}
.toc-list a{
  position:relative;
  display:block;
  padding:9px 12px;
  border-radius:10px;
  font-size:14.5px;
  color:var(--muted);
  transition:background .2s ease,color .2s ease;
}
.toc-list a:hover{background:rgba(36,26,74,.06);color:var(--brand);}
.toc-list a.is-active{
  background:rgba(36,26,74,.07);
  color:var(--brand);
  font-weight:600;
}
.toc-list a.is-active::before{
  content:"";
  position:absolute;
  left:0;top:10px;bottom:10px;
  width:3px;
  border-radius:2px;
  background:var(--accent);
}

.doc-section{margin-bottom:72px;}
.doc-section:last-child{margin-bottom:0;}
.section-head{margin-bottom:30px;max-width:720px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  letter-spacing:.14em;
  color:var(--brand-3);
  margin-bottom:12px;
}
.eyebrow::before{
  content:"";
  width:22px;height:2px;
  background:var(--accent);
  border-radius:2px;
}
.section-head h2{
  font-size:34px;
  line-height:1.25;
  letter-spacing:-.015em;
  font-weight:700;
  color:var(--brand);
}
.section-head p{
  margin-top:12px;
  font-size:16.5px;
  color:var(--muted);
}

/* ---------- 图文交替 ---------- */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:36px;
  align-items:center;
}
.split + .split{margin-top:44px;}
.split-media{position:relative;}
.split-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow-1);
  background:rgba(36,26,74,.08);
}
.split-body h3{
  font-size:22px;
  line-height:1.35;
  color:var(--brand);
  margin-bottom:14px;
}
.split-body p{color:var(--muted);}
.split-body p + p{margin-top:14px;}
.split.reverse .split-media{order:2;}

.check-list{margin-top:18px;}
.check-list li{
  position:relative;
  padding-left:20px;
  font-size:15.5px;
  color:var(--text);
  line-height:1.7;
}
.check-list li + li{margin-top:10px;}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:8px;height:8px;
  border-radius:2px;
  background:var(--accent);
}

/* ---------- 特性卡组 ---------- */
.ability-grid{
  display:grid;
  grid-template-columns:1.15fr 1fr;
  gap:24px;
}
.ability-card{
  display:flex;
  flex-direction:column;
  gap:14px;
  padding:26px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.ability-card:hover{
  transform:translateY(-2px);
  border-color:rgba(36,26,74,.3);
  box-shadow:var(--shadow-2);
}
.ability-card--lg{grid-row:span 2;}
.ability-card--lg img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--radius-md);
  background:rgba(36,26,74,.08);
}
.ability-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border-radius:12px;
  background:rgba(200,242,77,.32);
  color:var(--brand);
  font-size:18px;
}
.ability-card h3{
  font-size:18px;
  line-height:1.4;
  color:var(--brand);
}
.ability-card p{font-size:15.5px;color:var(--muted);}
.ability-card .check-list li{font-size:15px;}

/* ---------- 数据通栏 ---------- */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  overflow:hidden;
}
.stat-strip li{
  background:var(--white);
  padding:28px 20px;
  text-align:center;
}
.badge{
  display:inline-flex;
  align-items:baseline;
  gap:3px;
  padding:10px 14px;
  border-radius:8px;
  font-family:var(--mono);
  font-size:20px;
  letter-spacing:-.01em;
  position:relative;
}
.badge-accent{background:var(--accent);color:var(--dark);}
.badge-accent::after{
  content:"";
  position:absolute;
  top:0;right:-7px;
  border-width:0 7px 7px 0;
  border-style:solid;
  border-color:transparent #8FB825 transparent transparent;
}
.badge b{font-size:22px;font-weight:700;}
.badge span{font-size:12px;font-weight:600;}
.stat-label{
  margin-top:12px;
  font-size:13.5px;
  color:var(--muted);
}

/* ---------- 场景卡 ---------- */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.scene-card{
  padding:26px;
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease;
}
.scene-card:hover{
  transform:translateY(-2px);
  background:var(--white);
  box-shadow:var(--shadow-1);
}
.scene-card h3{
  font-size:18px;
  color:var(--brand);
  margin-bottom:10px;
}
.scene-card p{font-size:15.5px;color:var(--muted);}

/* ---------- 流程 ---------- */
.flow-list{
  display:grid;
  gap:16px;
  counter-reset:flow;
}
.flow-item{
  display:grid;
  grid-template-columns:56px minmax(0,1fr);
  gap:20px;
  align-items:start;
  padding:22px 26px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.flow-item:hover{
  transform:translateY(-2px);
  border-color:rgba(36,26,74,.28);
  box-shadow:var(--shadow-2);
}
.flow-num{
  display:flex;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border-radius:12px;
  background:var(--brand);
  color:var(--accent);
  font-family:var(--mono);
  font-size:16px;
  font-weight:700;
}
.flow-body h3{
  font-size:18px;
  color:var(--brand);
  margin-bottom:8px;
}
.flow-body p{font-size:15.5px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-list{margin:0;border:0;background:transparent;}
.faq-list .accordion-item{
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  background:var(--white);
  box-shadow:var(--shadow-1);
  margin-bottom:14px;
  overflow:hidden;
  transition:box-shadow .22s ease,border-color .22s ease;
}
.faq-list .accordion-item:hover{
  border-color:rgba(36,26,74,.24);
  box-shadow:var(--shadow-2);
}
.faq-list .accordion-title{
  position:relative;
  padding:18px 56px 18px 24px;
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  color:var(--text);
  border:0;
  background:transparent;
  transition:color .2s ease,background .2s ease;
}
.faq-list .accordion-title:hover,
.faq-list .accordion-title:focus{
  background:rgba(36,26,74,.03);
  color:var(--brand);
}
.faq-list .accordion-title::before{
  content:"";
  position:absolute;
  top:50%;
  right:26px;
  width:9px;height:9px;
  margin:0;
  border-right:2px solid var(--brand);
  border-bottom:2px solid var(--brand);
  transform:translateY(-70%) rotate(45deg);
  transition:transform .22s ease;
  color:transparent;
  font-size:0;
  line-height:0;
}
.faq-list .accordion-item.is-active .accordion-title{color:var(--brand);}
.faq-list .accordion-item.is-active .accordion-title::before{
  transform:translateY(-30%) rotate(-135deg);
}
.faq-list .accordion-content{
  padding:0 24px 20px;
  border:0;
  background:transparent;
  color:var(--muted);
  font-size:15.5px;
  line-height:1.8;
}

/* ---------- CTA 块 ---------- */
.cta-block{
  position:relative;
  padding:56px 48px;
  border-radius:24px;
  text-align:center;
  color:#fff;
  background:linear-gradient(120deg,var(--brand) 0%,var(--brand-3) 100%);
  overflow:hidden;
}
.cta-block::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 1px,transparent 1px 14px);
  pointer-events:none;
}
.cta-block h2{
  position:relative;
  font-size:34px;
  line-height:1.25;
  letter-spacing:-.015em;
  margin-bottom:14px;
}
.cta-block p{
  position:relative;
  font-size:16.5px;
  color:rgba(232,228,245,.86);
  max-width:560px;
  margin:0 auto;
}
.cta-actions{
  position:relative;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:center;
  gap:20px;
  margin-top:30px;
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:80;
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:52px;
  padding:0 26px;
  border-radius:var(--radius-pill);
  background:var(--accent);
  color:var(--dark);
  font-size:15.5px;
  font-weight:600;
  box-shadow:0 12px 30px rgba(36,26,74,.22);
  opacity:0;
  transform:translateY(14px);
  pointer-events:none;
  transition:opacity .3s ease,transform .3s ease,background .2s ease;
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{background:var(--accent-hover);transform:translateY(-2px);}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-left:var(--sidebar-w);
  background:var(--dark);
  color:#E8E4F5;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.3fr;
  gap:40px;
}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand p{
  margin-top:16px;
  font-size:14.5px;
  line-height:1.8;
  color:rgba(232,228,245,.68);
  max-width:340px;
}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:#fff;
  margin-bottom:18px;
  letter-spacing:.04em;
}
.footer-links li + li{margin-top:10px;}
.footer-links a{
  font-size:14.5px;
  color:rgba(232,228,245,.72);
  transition:color .2s ease,padding-left .2s ease;
}
.footer-links a:hover{color:var(--accent);padding-left:4px;}
.footer-form p{
  font-size:14.5px;
  color:rgba(232,228,245,.7);
  margin-bottom:18px;
}
.footer-bottom{
  margin-top:56px;
  padding:22px 0;
  border-top:1px solid rgba(200,242,77,.32);
  font-size:13.5px;
  color:rgba(232,228,245,.55);
}
.footer-bottom .container{
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  align-items:center;
  justify-content:space-between;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .page-banner h1{font-size:36px;}
  .doc-layout{gap:40px;}
}
@media (max-width:1023px){
  :root{--sidebar-w:0px;}
  .sidebar{display:none;}
  .mobile-bar{display:flex;}
  .site-main{margin-left:0;}
  .site-footer{margin-left:0;}
  [id]{scroll-margin-top:80px;}
  .doc-layout{
    grid-template-columns:minmax(0,1fr);
    gap:32px;
    padding:56px 0 64px;
  }
  .doc-toc{
    position:static;
    padding:16px;
  }
  .toc-title{margin-bottom:10px;}
  .toc-list{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;}
  .toc-list li + li{margin-top:0;}
  .toc-list a{white-space:nowrap;padding:8px 14px;border:1px solid var(--line);}
  .toc-list a.is-active::before{display:none;}
  .doc-section{margin-bottom:56px;}
  .section-head h2{font-size:26px;}
  .cta-block{padding:44px 26px;}
  .cta-block h2{font-size:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .page-banner{padding:44px 0 42px;min-height:260px;}
  .page-banner h1{font-size:28px;}
  .banner-lead{font-size:15.5px;}
  .split{grid-template-columns:minmax(0,1fr);gap:24px;}
  .split.reverse .split-media{order:0;}
  .split + .split{margin-top:36px;}
  .ability-grid{grid-template-columns:minmax(0,1fr);}
  .ability-card--lg{grid-row:auto;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .scene-grid{grid-template-columns:minmax(0,1fr);}
  .flow-item{grid-template-columns:44px minmax(0,1fr);gap:14px;padding:20px;}
  .flow-num{width:38px;height:38px;font-size:14px;}
  .faq-list .accordion-title{font-size:16px;padding:16px 48px 16px 20px;}
  .faq-list .accordion-content{padding:0 20px 18px;}
  .float-cta{
    left:16px;
    right:16px;
    bottom:calc(16px + env(safe-area-inset-bottom,0px));
    width:calc(100% - 32px);
    justify-content:center;
    height:52px;
  }
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:30px;}
  .footer-bottom .container{justify-content:flex-start;}
}
@media (max-width:479px){
  .page-banner h1{font-size:25px;}
  .section-head h2{font-size:22px;}
  .cta-block h2{font-size:22px;}
  .btn{width:100%;}
  .cta-actions{gap:14px;}
  .banner-tags{gap:8px;}
}

/* roulang page: category2 */
:root{
  --brand:#241A4A;
  --brand-2:#3A2A73;
  --brand-3:#5140A0;
  --accent:#C8F24D;
  --accent-2:#D8F877;
  --coral:#FF6B4A;
  --bg:#FAF8FF;
  --bg-alt:#F1EDFB;
  --dark:#1A1333;
  --text:#2C2740;
  --muted:#6B6580;
  --white:#FFFFFF;
  --white-soft:#E8E4F5;
  --line:rgba(36,26,74,.10);
  --line-dark:rgba(255,255,255,.12);
  --radius-xl:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-1:0 8px 24px rgba(36,26,74,.08);
  --shadow-2:0 14px 36px rgba(36,26,74,.14);
  --shadow-dark:0 14px 36px rgba(0,0,0,.35);
  --nav-w:236px;
  --ease:220ms cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:ui-monospace,"DIN Alternate","SFMono-Regular",Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:6px;
}
::selection{background:var(--accent);color:var(--dark)}

.container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 28px;
}
.container-wide{max-width:1320px}

/* ============ 左侧竖向导航 ============ */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--nav-w);
  display:flex;
  flex-direction:column;
  gap:26px;
  padding:28px 20px 24px;
  background:linear-gradient(180deg,var(--brand) 0%,var(--brand-2) 100%);
  color:var(--white);
  z-index:60;
  overflow-y:auto;
  scrollbar-width:thin;
}
.sidebar::after{
  content:"";
  position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 1px,transparent 1px 9px);
  opacity:.5;
  pointer-events:none;
}
.sidebar>*{position:relative;z-index:1}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{
  width:38px;height:38px;
  flex:0 0 38px;
  border-radius:12px;
  background:linear-gradient(135deg,var(--accent) 0%,var(--brand-3) 100%);
  position:relative;
}
.brand-mark::before{
  content:"";
  position:absolute;inset:11px;
  border-radius:4px;
  background:var(--dark);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:19px;letter-spacing:.5px}
.brand-text em{font-style:normal;font-size:12.5px;color:var(--accent);letter-spacing:3px}
.nav-group-title{
  font-size:12.5px;
  letter-spacing:2px;
  color:rgba(255,255,255,.45);
  margin-bottom:10px;
}
.nav-group ul{display:flex;flex-direction:column;gap:2px}
.nav-link{
  position:relative;
  display:flex;
  align-items:center;
  min-height:44px;
  padding:0 14px 0 20px;
  border-radius:10px;
  font-size:15px;
  color:rgba(255,255,255,.78);
  transition:background var(--ease),color var(--ease);
}
.nav-link:hover{background:rgba(255,255,255,.06);color:var(--white)}
.nav-link.is-active{
  background:rgba(255,255,255,.09);
  color:var(--white);
  font-weight:600;
}
.nav-link.is-active::before{
  content:"";
  position:absolute;left:6px;top:10px;bottom:10px;
  width:3px;border-radius:3px;
  background:var(--accent);
}
.sidebar-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line-dark)}
.sidebar-contact{
  margin-top:14px;
  font-size:13px;
  line-height:1.7;
  color:rgba(255,255,255,.6);
}

/* ============ 移动端顶栏 ============ */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;
  height:64px;
  padding:0 16px;
  align-items:center;
  justify-content:space-between;
  background:linear-gradient(90deg,var(--brand) 0%,var(--brand-2) 100%);
  color:var(--white);
  z-index:70;
  box-shadow:0 6px 18px rgba(26,19,51,.28);
}
.topbar .brand{gap:10px}
.topbar .brand-mark{width:32px;height:32px;flex:0 0 32px;border-radius:10px}
.topbar .brand-mark::before{inset:9px}
.topbar .brand-text strong{font-size:16.5px}
.topbar .brand-text em{font-size:11px;letter-spacing:2px}
.nav-toggle{
  width:44px;height:44px;
  display:grid;place-items:center;
  border:1px solid var(--line-dark);
  border-radius:12px;
  background:rgba(255,255,255,.06);
  cursor:pointer;
}
.nav-toggle span{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--white);
  position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--white);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.mobile-panel{
  position:fixed;
  top:64px;left:0;right:0;
  max-height:0;
  overflow:hidden;
  background:linear-gradient(180deg,var(--brand-2) 0%,var(--brand) 100%);
  color:var(--white);
  z-index:69;
  transition:max-height 320ms cubic-bezier(.2,.7,.3,1);
}
.mobile-panel.open{max-height:560px;overflow-y:auto}
.mobile-panel-inner{padding:14px 16px 24px}
.mobile-panel .nav-group-title{color:rgba(255,255,255,.45);margin-top:16px}
.mobile-panel a.m-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;
  padding:0 14px;
  border-bottom:1px solid var(--line-dark);
  font-size:15.5px;
  color:rgba(255,255,255,.85);
}
.mobile-panel a.m-link::after{
  content:"";width:7px;height:7px;
  border-right:1.5px solid rgba(255,255,255,.5);
  border-bottom:1.5px solid rgba(255,255,255,.5);
  transform:rotate(-45deg);
}
.mobile-panel a.m-link.is-active{color:var(--white);font-weight:600}
.mobile-panel .btn{margin-top:20px}

/* ============ 内容区 ============ */
.content{margin-left:var(--nav-w)}
.section{padding:96px 0}
.section-alt{background:var(--bg-alt)}
.section-dark{background:var(--dark);color:var(--white)}
.section-dark .section-title{color:var(--white)}
.section-dark .section-lead{color:rgba(255,255,255,.72)}

.section-head{max-width:760px;margin-bottom:48px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:2px;
  color:var(--brand-3);
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";width:22px;height:2px;border-radius:2px;background:var(--accent);
}
.section-dark .eyebrow{color:var(--accent)}
.section-title{
  font-size:34px;
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--brand);
}
.section-lead{
  margin-top:14px;
  font-size:16.5px;
  line-height:1.85;
  color:var(--muted);
  max-width:720px;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:999px;
  border:1.5px solid transparent;
  font-size:15.5px;
  font-weight:600;
  cursor:pointer;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn-accent{background:var(--accent);color:var(--dark);box-shadow:0 8px 20px rgba(200,242,77,.28)}
.btn-accent:hover{background:var(--accent-2);transform:translateY(-1px);box-shadow:0 14px 28px rgba(200,242,77,.36)}
.btn-accent:active{transform:translateY(0);box-shadow:0 6px 14px rgba(200,242,77,.24)}
.btn-outline{background:transparent;border-color:rgba(255,255,255,.55);color:var(--white)}
.btn-outline:hover{background:rgba(255,255,255,.10);border-color:var(--white)}
.btn-outline-dark{background:transparent;border-color:rgba(36,26,74,.28);color:var(--brand)}
.btn-outline-dark:hover{background:rgba(36,26,74,.08);border-color:var(--brand)}
.btn-block{width:100%}
.btn-sm{height:42px;padding:0 20px;font-size:14.5px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--brand);
  border-bottom:2px solid transparent;
  padding-bottom:2px;
  transition:border-color var(--ease),color var(--ease);
}
.text-link:hover{border-color:var(--accent)}
.section-dark .text-link{color:var(--accent)}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:baseline;gap:4px;
  background:var(--accent);
  color:var(--dark);
  border-radius:8px;
  padding:10px 14px;
  font-family:var(--font-num);
  font-size:20px;
  letter-spacing:-.01em;
  font-weight:600;
  position:relative;
}
.badge small{font-size:12px;font-family:var(--font-cn);font-weight:500}
.badge-ghost{
  background:transparent;
  border:1px solid var(--line-dark);
  color:var(--white);
}
.badge-ghost small{color:rgba(255,255,255,.7)}
.tag{
  display:inline-flex;align-items:center;
  border:1px solid var(--line);
  border-radius:999px;
  padding:6px 12px;
  font-size:12.5px;
  color:var(--muted);
  transition:background var(--ease),border-color var(--ease),color var(--ease);
}
.tag:hover{background:rgba(36,26,74,.08);border-color:rgba(36,26,74,.28);color:var(--brand)}
.section-dark .tag{border-color:var(--line-dark);color:rgba(255,255,255,.75)}
.section-dark .tag:hover{background:rgba(255,255,255,.08);color:var(--white)}

/* ============ Banner ============ */
.banner{
  position:relative;
  min-height:320px;
  display:flex;
  align-items:flex-end;
  padding:56px 0 48px;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.banner::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(36,26,74,.95) 0%,rgba(58,42,115,.78) 52%,rgba(36,26,74,.42) 100%);
}
.banner::after{
  content:"";
  position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 1px,transparent 1px 10px);
  opacity:.6;
}
.banner .container{position:relative;z-index:2}
.breadcrumb{font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:18px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:rgba(255,255,255,.4)}
.breadcrumb a{transition:color var(--ease)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb [aria-current]{color:var(--white)}
.banner h1{
  font-size:44px;
  line-height:1.2;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--white);
  max-width:860px;
}
.banner .lead{
  margin-top:16px;
  font-size:17px;
  line-height:1.8;
  color:rgba(255,255,255,.8);
  max-width:660px;
}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.banner-tags .tag{border-color:rgba(255,255,255,.28);color:rgba(255,255,255,.85)}
.banner-tags .tag:hover{background:rgba(255,255,255,.12);color:var(--white)}

/* ============ 数据徽章通栏 ============ */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  padding:32px;
  border-radius:var(--radius-xl);
  background:var(--white);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.section-dark .stat-strip{
  background:rgba(255,255,255,.045);
  border-color:var(--line-dark);
  box-shadow:var(--shadow-dark);
}
.stat{display:flex;flex-direction:column;gap:8px;padding-right:8px;border-right:1px dashed var(--line)}
.stat:last-child{border-right:0}
.section-dark .stat{border-color:var(--line-dark)}
.stat strong{
  font-family:var(--font-num);
  font-size:34px;
  line-height:1.1;
  letter-spacing:-.02em;
  color:var(--brand);
}
.section-dark .stat strong{color:var(--accent)}
.stat strong em{font-style:normal;font-size:14px;font-family:var(--font-cn);margin-left:4px;color:var(--muted)}
.section-dark .stat strong em{color:rgba(255,255,255,.7)}
.stat span{font-size:13.5px;color:var(--muted)}
.section-dark .stat span{color:rgba(255,255,255,.68)}

/* ============ 大图卡横滑 ============ */
.rail-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.rail{
  display:flex;
  gap:20px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:6px 4px 20px;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.rail::-webkit-scrollbar{display:none}
.rail-card{
  flex:0 0 340px;
  scroll-snap-align:start;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  display:flex;
  flex-direction:column;
}
.rail-card:hover{transform:translateY(-2px);border-color:rgba(36,26,74,.3);box-shadow:var(--shadow-2)}
.media{
  position:relative;
  aspect-ratio:16/10;
  background:rgba(36,26,74,.08);
  overflow:hidden;
}
.media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.rail-card:hover .media img,.feature-card:hover .media img{transform:scale(1.03)}
.media-badge{
  position:absolute;left:14px;top:14px;
  background:var(--accent);
  color:var(--dark);
  font-family:var(--font-num);
  font-size:13px;
  font-weight:600;
  border-radius:8px;
  padding:6px 10px;
}
.rail-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.rail-body h3{font-size:18px;line-height:1.4;font-weight:700;color:var(--brand)}
.rail-body p{font-size:14.5px;line-height:1.8;color:var(--muted)}
.rail-meta{
  margin-top:auto;
  display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-family:var(--font-num);
  font-size:13px;
  color:var(--muted);
}
.rail-dots{display:flex;justify-content:center;gap:8px;margin-top:6px}
.rail-dot{
  width:8px;height:8px;border-radius:99px;
  background:rgba(36,26,74,.18);
  border:0;padding:0;cursor:pointer;
  transition:width var(--ease),background var(--ease);
}
.section-dark .rail-dot{background:rgba(255,255,255,.26)}
.rail-dot.is-on{width:22px;background:var(--accent)}

/* ============ 非对称特性卡组 ============ */
.feature-grid{
  display:grid;
  grid-template-columns:1.25fr 1fr;
  gap:24px;
  align-items:start;
}
.feature-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.feature-card:hover{transform:translateY(-2px);border-color:rgba(36,26,74,.3);box-shadow:var(--shadow-2)}
.feature-text{padding:28px}
.feature-text h3{font-size:22px;line-height:1.35;font-weight:700;color:var(--brand);margin-bottom:12px}
.feature-text p{font-size:15.5px;line-height:1.85;color:var(--muted)}
.checklist{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.checklist li{
  position:relative;
  padding-left:22px;
  font-size:15px;
  line-height:1.75;
  color:var(--text);
}
.checklist li::before{
  content:"";
  position:absolute;left:0;top:9px;
  width:8px;height:8px;
  background:var(--accent);
  border-radius:2px;
}
.feature-stack{display:flex;flex-direction:column;gap:24px}
.mini-card{padding:26px}
.mini-card h3{font-size:19px;line-height:1.4;font-weight:700;color:var(--brand);margin-bottom:10px}
.mini-card p{font-size:15px;line-height:1.8;color:var(--muted)}
.mini-card .tag{margin-top:16px}

/* ============ 流程时间线 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.flow-step{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:26px 24px;
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.flow-step:hover{transform:translateY(-2px);border-color:rgba(36,26,74,.3);box-shadow:var(--shadow-2)}
.flow-no{
  font-family:var(--font-num);
  font-size:26px;
  font-weight:700;
  color:var(--coral);
  letter-spacing:-.02em;
}
.flow-step h3{font-size:17px;font-weight:700;color:var(--brand);margin:12px 0 8px}
.flow-step p{font-size:14.5px;line-height:1.8;color:var(--muted)}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:.85fr 1.35fr;gap:48px;align-items:start}
.faq-aside{position:sticky;top:32px}
.faq-item{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:box-shadow var(--ease),border-color var(--ease);
}
.faq-item:hover{border-color:rgba(36,26,74,.24)}
.faq-item .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;
  font-size:17px;
  font-weight:600;
  color:var(--brand);
  border:0;
  transition:color var(--ease);
}
.faq-item .accordion-title::after{
  content:"";
  width:9px;height:9px;
  flex:0 0 9px;
  border-right:2px solid var(--brand-3);
  border-bottom:2px solid var(--brand-3);
  transform:rotate(45deg);
  transition:transform var(--ease);
}
.faq-item.is-active .accordion-title{color:var(--brand-3)}
.faq-item.is-active .accordion-title::after{transform:rotate(-135deg)}
.faq-item .accordion-content{padding:0 24px 18px;border:0;background:transparent}
.faq-item .accordion-content p{font-size:15px;line-height:1.85;color:var(--muted)}

/* ============ CTA 区 ============ */
.cta-block{
  position:relative;
  border-radius:24px;
  padding:64px 56px;
  background:linear-gradient(120deg,var(--brand) 0%,var(--brand-3) 100%);
  color:var(--white);
  overflow:hidden;
}
.cta-block::after{
  content:"";
  position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.06) 0 1px,transparent 1px 10px);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.cta-inner h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.01em}
.cta-inner p{margin-top:14px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.78);max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.form-card{
  background:rgba(255,255,255,.06);
  border:1px solid var(--line-dark);
  border-radius:var(--radius-xl);
  padding:28px;
}
.form-card h3{font-size:18px;font-weight:700;margin-bottom:18px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;color:rgba(255,255,255,.7);margin-bottom:8px}
.field input,.field select{
  width:100%;
  height:48px;
  padding:0 14px;
  border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.06);
  color:var(--white);
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.field select option{color:var(--dark)}
.field input::placeholder{color:rgba(255,255,255,.45)}
.field input:focus,.field select:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 2px rgba(200,242,77,.35);
  background:rgba(255,255,255,.1);
}
.field.has-error input,.field.has-error select{
  border-color:var(--coral);
  box-shadow:0 0 0 2px rgba(255,107,74,.28);
}
.field .field-error{display:none;font-size:13px;color:#FFB9A8;margin-top:6px}
.field.has-error .field-error{display:block}
.form-note{margin-top:12px;font-size:12.5px;color:rgba(255,255,255,.55)}
.form-feedback{
  position:fixed;top:0;left:0;right:0;
  z-index:120;
  transform:translateY(-100%);
  transition:transform 260ms var(--ease);
  text-align:center;
  font-size:14px;
  padding:12px 16px;
  color:var(--dark);
  background:var(--accent);
}
.form-feedback.is-show{transform:translateY(0)}
.form-feedback.is-error{background:var(--coral);color:#2A0F09}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;
  right:24px;bottom:24px;
  z-index:90;
  display:inline-flex;align-items:center;gap:10px;
  height:52px;padding:0 26px;
  border-radius:999px;
  background:var(--accent);
  color:var(--dark);
  font-weight:700;
  font-size:15px;
  box-shadow:0 12px 30px rgba(200,242,77,.34);
  opacity:0;
  transform:translateY(14px);
  pointer-events:none;
  transition:opacity 280ms var(--ease),transform 280ms var(--ease),background var(--ease);
}
.float-cta.is-show{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{background:var(--accent-2);transform:translateY(-2px)}
.float-cta .dot{width:8px;height:8px;border-radius:99px;background:var(--dark)}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--dark);
  color:var(--white-soft);
  padding:72px 0 28px;
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--accent) 0%,rgba(200,242,77,.15) 60%,transparent 100%);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid var(--line-dark);
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.62);max-width:320px}
.footer-col h4{font-size:15px;font-weight:700;color:var(--white);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{
  font-size:14.5px;
  color:rgba(255,255,255,.62);
  transition:color var(--ease),padding-left var(--ease);
}
.footer-col a:hover{color:var(--accent);padding-left:4px}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62)}
.footer-col .btn{margin-top:16px}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding-top:24px;
  font-size:13.5px;
  color:rgba(255,255,255,.45);
}
.footer-bottom .sep{color:rgba(200,242,77,.5)}

/* ============ 动画 ============ */
.reveal{opacity:0;transform:translateY(18px);transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .banner h1{font-size:40px}
  .rail-card{flex:0 0 320px}
}
@media (max-width:1024px){
  .sidebar{display:none}
  .topbar{display:flex}
  .content{margin-left:0;padding-top:64px}
  .section{padding:72px 0}
  .banner{padding:48px 0 40px}
  .banner h1{font-size:34px}
  .feature-grid{grid-template-columns:1fr}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .faq-aside{position:static}
  .flow{grid-template-columns:repeat(2,1fr)}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .stat-strip{grid-template-columns:repeat(2,1fr);gap:20px}
  .stat{border-right:0;border-bottom:1px dashed var(--line);padding-bottom:16px}
  .section-dark .stat{border-bottom-color:var(--line-dark)}
  .stat:nth-child(3),.stat:nth-child(4){border-bottom:0;padding-bottom:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .float-cta{right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px))}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 18px}
  .section{padding:56px 0}
  .section-title{font-size:24px}
  .banner{min-height:280px}
  .banner h1{font-size:30px}
  .banner .lead{font-size:15.5px}
  .cta-block{padding:40px 24px;border-radius:20px}
  .cta-inner h2{font-size:24px}
  .flow{grid-template-columns:1fr}
  .rail-card{flex:0 0 280px}
  .rail-body{padding:20px}
  .stat-strip{padding:24px}
  .stat strong{font-size:28px}
  .footer-grid{grid-template-columns:1fr}
  .float-cta{
    left:16px;right:16px;width:calc(100% - 32px);
    justify-content:center;
    bottom:calc(16px + env(safe-area-inset-bottom,0px));
  }
}
@media (max-width:480px){
  .banner h1{font-size:26px}
  .section-title{font-size:22px}
  .btn{padding:0 20px;font-size:15px}
  .rail-card{flex:0 0 246px}
  .cta-actions .btn{width:100%}
  .stat strong{font-size:24px}
}