/* roulang page: index */
:root{
  --brand:#FF6A1F;
  --brand-600:#E4550C;
  --violet:#7A3FF2;
  --lime:#16C79A;
  --grad:linear-gradient(108deg,#FF8A2B 0%,#FF4D6D 48%,#7A3FF2 100%);
  --bg:#FFF8F3;
  --bg-alt:#F4F1FB;
  --ink-bg:#1B1233;
  --fg:#221A33;
  --fg-2:#5C5470;
  --fg-3:#8B849C;
  --line:rgba(34,26,51,.10);
  --line-2:rgba(122,63,242,.16);
  --r-xl:28px;
  --r-lg:22px;
  --r-md:18px;
  --r-sm:14px;
  --sh-1:0 6px 18px rgba(34,26,51,.06);
  --sh-2:0 16px 40px rgba(34,26,51,.10);
  --sh-brand:0 12px 30px rgba(255,106,31,.28);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--fg);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1{font-size:clamp(34px,5vw,54px);line-height:1.15;font-weight:800;letter-spacing:-.5px}
h2{font-size:clamp(26px,3vw,38px);line-height:1.25;font-weight:800;letter-spacing:-.3px}
h3{font-size:21px;line-height:1.4;font-weight:700}
h4{font-size:17.5px;line-height:1.5;font-weight:700}
p{max-width:44em}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:72px 0}
.section-alt{background:var(--bg-alt)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.4px;
  color:var(--violet);background:rgba(122,63,242,.10);
  border:1px solid var(--line-2);border-radius:999px;
  padding:6px 14px;margin-bottom:18px;
}
.sec-head{max-width:780px;margin-bottom:40px}
.sec-head p{color:var(--fg-2);font-size:16px;margin-top:14px}
.sec-head .bar{width:64px;height:4px;border-radius:999px;background:var(--grad);margin-bottom:20px}
.muted{color:var(--fg-2)}
.small{font-size:14px;line-height:1.7;color:var(--fg-2)}
.tiny{font-size:13px;line-height:1.7;color:var(--fg-3)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 28px;border-radius:999px;
  font-size:15.5px;font-weight:700;line-height:1;
  transition:transform .22s ease-out,box-shadow .22s ease-out,background-color .22s ease-out,border-color .22s ease-out,filter .22s ease-out;
  white-space:nowrap;
}
.btn-primary{background-image:var(--grad);color:#fff;box-shadow:var(--sh-brand)}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.05);box-shadow:0 16px 34px rgba(255,106,31,.34)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border:1.5px solid var(--brand);color:var(--brand-600)}
.btn-ghost:hover{background:rgba(255,106,31,.06);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-white{background:#fff;color:var(--brand-600)}
.btn-white:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(27,18,51,.22)}
.btn-outline-white{background:transparent;border:1.5px solid rgba(255,255,255,.75);color:#fff}
.btn-outline-white:hover{background:rgba(255,255,255,.14);transform:translateY(-1px)}
.btn-sm{min-height:42px;padding:0 20px;font-size:14.5px}
.link-arrow{color:var(--brand-600);font-weight:700;font-size:14.5px;display:inline-flex;align-items:center;gap:6px}
.link-arrow span{transition:transform .22s ease-out}
.link-arrow:hover span{transform:translateX(4px)}

/* 导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  border-bottom:1px solid transparent;
  background:transparent;
  transition:background-color .25s ease-out,border-color .25s ease-out,box-shadow .25s ease-out;
}
.site-header.is-stuck{background:rgba(255,248,243,.94);border-bottom-color:var(--line);box-shadow:0 4px 18px rgba(34,26,51,.05)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px}
.nav-left,.nav-right{display:flex;align-items:center;gap:26px;flex:1 1 0;min-width:0}
.nav-left{justify-content:flex-start}
.nav-right{justify-content:flex-end}
.nav-link{
  position:relative;font-size:15px;font-weight:600;color:var(--fg-2);
  padding:6px 2px;transition:color .22s ease-out,transform .22s ease-out;
}
.nav-link:hover{color:var(--brand-600);transform:translateY(-1px)}
.nav-link.is-active{color:var(--brand-600)}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:3px;border-radius:999px;background:var(--grad);
}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:38px;height:38px;border-radius:12px;background-image:var(--grad);
  display:grid;place-items:center;box-shadow:var(--sh-brand);flex:0 0 auto;
}
.logo-mark svg{width:20px;height:20px;display:block}
.logo-text{font-size:18px;font-weight:800;letter-spacing:-.2px;color:var(--fg)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  align-items:center;justify-content:center;border:1px solid var(--line);background:#fff;
}
.nav-toggle svg{width:20px;height:20px}
.mobile-panel{
  display:none;background:rgba(255,248,243,.98);
  border-bottom:1px solid var(--line);box-shadow:var(--sh-1);
  max-height:0;overflow:hidden;opacity:0;
  transition:max-height .28s ease-out,opacity .22s ease-out;
}
.mobile-panel.is-open{max-height:520px;opacity:1}
.mobile-panel a{
  display:flex;align-items:center;min-height:48px;padding:0 22px;
  font-size:15.5px;font-weight:600;color:var(--fg-2);
  border-bottom:1px solid var(--line);position:relative;
}
.mobile-panel a::before{
  content:"";position:absolute;left:10px;top:50%;transform:translateY(-50%);
  width:6px;height:20px;border-radius:999px;background:var(--grad);opacity:.9;
}
.mobile-panel a{padding-left:28px}
.mobile-panel a.is-active{color:var(--brand-600)}
.mobile-panel .panel-cta{margin:16px 20px 20px;border-bottom:0}
.mobile-panel .panel-cta::before{display:none}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  padding:132px 0 0;
  background:var(--bg);
}
.hero::before{
  content:"";position:absolute;top:-140px;right:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,31,.20) 0%,rgba(255,106,31,0) 68%);
}
.hero::after{
  content:"";position:absolute;top:60px;right:160px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(122,63,242,.18) 0%,rgba(122,63,242,0) 70%);
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;
  padding-bottom:56px;
}
.hero-copy p.hero-sub{font-size:18px;color:var(--fg-2);margin-top:20px;max-width:32em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:40px}
.hero-badges li{
  display:flex;align-items:center;gap:9px;
  padding:9px 16px;border-radius:999px;background:#fff;
  border:1px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:var(--sh-1);font-size:13px;color:var(--fg-2);
}
.hero-badges strong{font-size:17px;font-weight:800;color:var(--lime);font-variant-numeric:tabular-nums}
.hero-media{position:relative;transform:translateY(24px)}
.hero-media img{border-radius:var(--r-md);box-shadow:var(--sh-2);aspect-ratio:16/10;object-fit:cover;width:100%}
.hero-rule{height:3px;background-image:var(--grad);position:relative;z-index:2}

/* 入口网格 */
.entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.entry-card{
  display:block;padding:32px;border-radius:var(--r-lg);background:#fff;
  border:1px solid var(--line);box-shadow:var(--sh-1);
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-2)}
.entry-icon{
  width:46px;height:46px;border-radius:14px;background:rgba(122,63,242,.10);
  display:grid;place-items:center;color:var(--violet);margin-bottom:18px;
}
.entry-icon svg{width:22px;height:22px}
.entry-card h3{margin-bottom:10px}
.entry-card p{font-size:15px;color:var(--fg-2)}
.entry-card .link-arrow{margin-top:18px}
.entry-card.is-orange .entry-icon{background:rgba(255,106,31,.12);color:var(--brand-600)}

/* 痛点区 */
.pain-layout{display:grid;grid-template-columns:4fr 8fr;gap:40px;align-items:start}
.pain-side .vline{width:4px;height:56px;border-radius:999px;background:var(--grad);margin-bottom:20px}
.pain-side p{color:var(--fg-2);font-size:15.5px;margin-top:16px}
.pain-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.pain-card{
  padding:28px;border-radius:var(--r-lg);background:#fff;border:1px solid var(--line);
  box-shadow:var(--sh-1);transition:transform .22s ease-out,box-shadow .22s ease-out;
}
.pain-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.pain-card:hover .pain-num{color:var(--brand-600)}
.pain-num{
  font-size:13px;font-weight:800;letter-spacing:1px;font-variant-numeric:tabular-nums;
  background-image:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  transition:color .22s ease-out;
}
.pain-ico{
  width:42px;height:42px;border-radius:14px;margin:14px 0 16px;
  background:linear-gradient(135deg,rgba(255,138,43,.16),rgba(122,63,242,.14));
  display:grid;place-items:center;color:var(--brand-600);
}
.pain-ico svg{width:20px;height:20px}
.pain-card h3{font-size:19px;margin-bottom:10px}
.pain-card p{font-size:14.5px;color:var(--fg-2)}
.pain-wide{
  grid-column:1 / -1;display:grid;grid-template-columns:auto 1fr;gap:24px;align-items:center;
  padding:28px;border-radius:var(--r-lg);background:#fff;border:1px solid var(--line);box-shadow:var(--sh-1);
  transition:transform .22s ease-out,box-shadow .22s ease-out;
}
.pain-wide:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.pain-wide h3{font-size:19px;margin-bottom:8px}
.pain-wide p{font-size:14.5px;color:var(--fg-2)}

/* 解决方案 */
.solution-row{
  display:grid;grid-template-columns:5fr 6fr;gap:48px;align-items:center;
  padding:56px 0;border-bottom:1px dashed var(--line);
}
.solution-row:last-child{border-bottom:0;padding-bottom:0}
.solution-row.reverse .sol-media{order:2}
.solution-row.reverse .sol-text{order:1}
.sol-media img{border-radius:20px;box-shadow:var(--sh-2);aspect-ratio:3/2;object-fit:cover;width:100%;transition:transform .22s ease-out}
.sol-media{overflow:hidden;border-radius:20px}
.sol-media:hover img{transform:scale(1.03)}
.sol-text h3{margin-bottom:16px}
.sol-list li{display:flex;gap:12px;font-size:15px;color:var(--fg-2);margin-bottom:10px;line-height:1.8}
.sol-list li::before{
  content:"";flex:0 0 auto;width:9px;height:9px;border-radius:3px;margin-top:9px;
  background-image:var(--grad);
}
.sol-text .link-arrow{margin-top:16px}

/* 数据带 */
.data-band{
  background:var(--ink-bg);color:#fff;position:relative;
  border-top:1px solid transparent;border-bottom:1px solid transparent;
  padding:64px 0;
}
.data-band::before,.data-band::after{
  content:"";position:absolute;left:0;right:0;height:1px;background-image:var(--grad);
}
.data-band::before{top:0}
.data-band::after{bottom:0}
.data-band h2{color:#fff}
.data-band .sec-head p{color:rgba(255,255,255,.72)}
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.data-cell{
  padding:26px 22px;border-radius:20px;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.05);
  transition:transform .22s ease-out,border-color .22s ease-out;
}
.data-cell:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.36)}
.data-cell strong{
  display:block;font-size:clamp(34px,4vw,48px);font-weight:800;line-height:1.1;
  color:var(--lime);font-variant-numeric:tabular-nums;letter-spacing:-1px;
}
.data-cell span{display:block;font-size:13.5px;color:rgba(255,255,255,.72);margin-top:10px}
.data-note{font-size:13px;color:rgba(255,255,255,.55);margin-top:28px}

/* 步骤时间线 */
.steps{position:relative;max-width:900px;margin:0 auto}
.steps::before{
  content:"";position:absolute;left:19px;top:12px;bottom:12px;width:1px;background:var(--line);
}
.step{position:relative;padding:0 0 36px 68px}
.step:last-child{padding-bottom:0}
.step-dot{
  position:absolute;left:0;top:0;width:38px;height:38px;border-radius:50%;
  display:grid;place-items:center;background:#fff;font-weight:800;font-size:14px;
  color:var(--brand-600);border:1.5px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad);
  background-origin:border-box;background-clip:padding-box,border-box;
}
.step h3{font-size:19px;margin-bottom:8px}
.step p{font-size:15px;color:var(--fg-2)}

/* 证言 */
.quote-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;align-items:start}
.quote-col-right{padding-top:40px}
.quote-card{
  position:relative;padding:30px;border-radius:20px;background:var(--bg-alt);
  border:1px solid var(--line-2);margin-bottom:24px;
  transition:transform .22s ease-out,box-shadow .22s ease-out;
}
.quote-card:hover{transform:translateY(-3px);box-shadow:var(--sh-1)}
.quote-mark{font-size:56px;line-height:1;color:rgba(122,63,242,.18);font-weight:800;margin-bottom:6px}
.quote-card blockquote{margin:0;font-size:15.5px;color:var(--fg);line-height:1.85}
.quote-meta{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.avatar{
  width:44px;height:44px;border-radius:50%;flex:0 0 auto;
  background-image:var(--grad);display:grid;place-items:center;color:#fff;font-weight:700;font-size:15px;
}
.quote-meta .who{font-size:14.5px;font-weight:700}
.quote-meta .role{font-size:13px;color:var(--fg-3)}
.stars{margin-left:auto;color:var(--brand);font-size:14px;letter-spacing:2px}

/* 资讯 */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.news-head .sec-head{margin-bottom:0}
.news-lead{
  display:grid;grid-template-columns:6fr 6fr;gap:0;
  border-radius:var(--r-lg);background:#fff;border:1px solid var(--line);box-shadow:var(--sh-1);
  overflow:hidden;margin-bottom:24px;
  transition:transform .22s ease-out,box-shadow .22s ease-out;
}
.news-lead:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.news-lead .lead-media{overflow:hidden}
.news-lead .lead-media img{width:100%;height:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .22s ease-out}
.news-lead:hover .lead-media img{transform:scale(1.03)}
.news-lead .lead-body{padding:32px;display:flex;flex-direction:column;justify-content:center}
.news-lead h3{font-size:24px;line-height:1.35;margin:14px 0 12px;transition:color .22s ease-out}
.news-lead:hover h3{color:var(--brand-600)}
.news-lead p{font-size:15px;color:var(--fg-2)}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-card{
  border-radius:var(--r-lg);background:#fff;border:1px solid var(--line);box-shadow:var(--sh-1);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .22s ease-out,box-shadow .22s ease-out;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.news-card .card-media{overflow:hidden}
.news-card .card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .22s ease-out}
.news-card:hover .card-media img{transform:scale(1.03)}
.news-card .card-body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1 1 auto}
.news-card h3{font-size:19px;line-height:1.45;margin:12px 0 10px;transition:color .22s ease-out}
.news-card:hover h3{color:var(--brand-600)}
.news-card p{font-size:14.5px;color:var(--fg-2);flex:1 1 auto}
.tag{
  display:inline-flex;align-items:center;font-size:12.5px;font-weight:700;
  padding:5px 12px;border-radius:999px;background:rgba(122,63,242,.10);color:var(--violet);
  transition:background-color .22s ease-out;
}
.news-card:hover .tag,.news-lead:hover .tag{background:rgba(122,63,242,.18)}
.news-time{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--fg-3);margin-top:18px}
.news-time svg{width:14px;height:14px}
.news-list{margin-top:24px;border-top:1px solid var(--line)}
.news-list a{
  display:flex;align-items:center;gap:16px;padding:18px 4px;border-bottom:1px solid var(--line);
  transition:transform .22s ease-out,color .22s ease-out;
}
.news-list a:hover{color:var(--brand-600);transform:translateX(4px)}
.news-list .idx{
  font-size:13px;font-weight:800;font-variant-numeric:tabular-nums;
  background-image:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.news-list .txt{font-size:15.5px;font-weight:600}
.news-list .date{margin-left:auto;font-size:13px;color:var(--fg-3);white-space:nowrap}
.news-empty{
  border:1.5px dashed var(--line);border-radius:20px;background:var(--bg-alt);
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:10px;padding:32px;text-align:center;
}
.news-empty .ph{
  width:56px;height:56px;border-radius:16px;
  background:linear-gradient(135deg,rgba(255,138,43,.20),rgba(122,63,242,.20));
  margin-bottom:6px;
}
.news-empty .ph-main{font-size:14px;color:var(--fg-2)}
.news-empty .ph-sub{font-size:13px;color:var(--fg-3);max-width:32em}
.news-empty .btn{margin-top:10px}

/* FAQ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  margin-bottom:12px;overflow:hidden;transition:border-color .22s ease-out,box-shadow .22s ease-out;
}
.faq-item.open{border-color:rgba(255,106,31,.38);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 24px;text-align:left;font-size:17px;font-weight:700;line-height:1.6;
}
.faq-q .icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform .22s ease-out;
}
.faq-q .icon::before,.faq-q .icon::after{
  content:"";position:absolute;background:var(--fg-2);border-radius:2px;
}
.faq-q .icon::before{left:50%;top:4px;width:2px;height:14px;transform:translateX(-50%)}
.faq-q .icon::after{top:50%;left:4px;height:2px;width:14px;transform:translateY(-50%)}
.faq-item.open .faq-q .icon{transform:rotate(45deg)}
.faq-item.open .faq-q .icon::before,.faq-item.open .faq-q .icon::after{background:var(--brand-600)}
.faq-a{
  display:none;padding:0 24px 22px;font-size:15.5px;line-height:1.85;color:var(--fg-2);
}
.faq-item.open .faq-a{display:block}

/* CTA */
.cta-band{
  border-radius:var(--r-xl);background-image:var(--grad);color:#fff;
  padding:56px;display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:center;
  box-shadow:0 24px 60px rgba(122,63,242,.24);
}
.cta-band h2{color:#fff}
.cta-band p{margin-top:14px;font-size:15px;color:rgba(255,255,255,.9);max-width:34em}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* 页脚 */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:60px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:4fr 3fr 3fr 3fr;gap:32px}
.footer-brand .logo{margin-bottom:14px}
.footer-brand p{font-size:14px;color:var(--fg-2);max-width:22em}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--fg-2);display:inline-block;transition:color .22s ease-out,transform .22s ease-out}
.footer-col a:hover{color:var(--brand-600);transform:translateX(2px)}
.footer-col .txt{font-size:14px;color:var(--fg-2)}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--line);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--fg-3);
}

@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .entry-card:hover,.pain-card:hover,.news-card:hover,.news-lead:hover,.quote-card:hover,.data-cell:hover{transform:none}
}

@media (max-width:1199px){
  .nav-left,.nav-right{gap:18px}
  .logo-text{font-size:17px}
}
@media (max-width:1023px){
  .nav-left,.nav-right{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:60px;justify-content:space-between}
  .logo{flex:1 1 auto;justify-content:center}
  .mobile-panel{display:block}
  .hero{padding-top:104px}
  .hero-grid{grid-template-columns:1fr;gap:36px;padding-bottom:44px}
  .hero-media{transform:none}
  .hero::before,.hero::after{width:340px;height:340px;top:-80px}
  .pain-layout{grid-template-columns:1fr;gap:28px}
  .pain-cards{grid-template-columns:repeat(2,1fr)}
  .solution-row{grid-template-columns:1fr;gap:28px;padding:40px 0}
  .solution-row.reverse .sol-media,.solution-row.reverse .sol-text{order:initial}
  .data-grid{grid-template-columns:repeat(2,1fr)}
  .quote-col-right{padding-top:0}
  .news-lead{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:40px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px 24px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:48px 0}
  .hero{padding-top:96px}
  .hero-badges{gap:10px}
  .hero-badges li{flex:1 1 calc(50% - 5px);justify-content:center}
  .pain-cards{grid-template-columns:1fr}
  .pain-wide{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .quote-grid{grid-template-columns:1fr}
  .data-grid{grid-template-columns:repeat(2,1fr)}
  .news-head{flex-direction:column;align-items:flex-start}
  .news-lead .lead-body{padding:24px}
  .news-lead h3{font-size:20px}
  .cta-band{padding:32px 24px;border-radius:22px}
  .news-list a{flex-wrap:wrap;gap:8px 12px}
  .news-list .date{margin-left:0;width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:480px){
  h1{font-size:30px}
  .btn{width:100%}
  .hero-actions .btn{width:100%}
  .entry-grid{grid-template-columns:1fr}
  .data-grid{grid-template-columns:1fr}
}

/* roulang page: article */
:root{
  --brand:#FF6A1F;
  --brand-600:#E4550C;
  --violet:#7A3FF2;
  --lime:#16C79A;
  --grad:linear-gradient(108deg,#FF8A2B 0%,#FF4D6D 48%,#7A3FF2 100%);
  --bg:#FFF8F3;
  --bg-alt:#F4F1FB;
  --ink-bg:#1B1233;
  --fg:#221A33;
  --fg-2:#5C5470;
  --fg-3:#8B849C;
  --line:rgba(34,26,51,.10);
  --line-v:rgba(122,63,242,.16);
  --r-lg:22px;
  --r-img:18px;
  --r-sm:14px;
  --r-pill:999px;
  --r-cta:28px;
  --sh-1:0 6px 18px rgba(34,26,51,.06);
  --sh-2:0 16px 40px rgba(34,26,51,.10);
  --sh-brand:0 12px 30px rgba(255,106,31,.28);
  --ease:.22s ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--fg);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease),transform var(--ease)}
a:focus-visible,button:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:8px}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3}
p{margin:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media(max-width:767px){.container{padding:0 20px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,248,243,.94);
  border-bottom:1px solid var(--line);
  transition:background var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{background:rgba(255,248,243,.97);box-shadow:0 10px 30px rgba(34,26,51,.07)}
.header-inner{display:flex;align-items:center;height:72px;gap:18px}
.nav-left{display:flex;align-items:center;gap:22px;flex:1 1 0;min-width:0}
.nav-right{display:flex;align-items:center;gap:20px;flex:1 1 0;justify-content:flex-end;min-width:0}
.nav-link{position:relative;font-size:15px;color:var(--fg-2);padding:6px 2px;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:3px;border-radius:var(--r-pill);background:var(--grad);opacity:0;transform:scaleX(.35);transition:opacity var(--ease),transform var(--ease)}
.nav-link:hover{color:var(--brand);transform:translateY(-1px)}
.nav-link.is-active{color:var(--brand);font-weight:700}
.nav-link.is-active::after{opacity:1;transform:scaleX(1)}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:36px;height:36px;border-radius:12px;background:var(--grad);display:grid;place-items:center;box-shadow:var(--sh-brand);flex:0 0 auto}
.logo-mark svg{width:20px;height:20px}
.logo-text{font-size:18px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.nav-toggle{display:none;width:44px;height:44px;place-items:center;border-radius:12px;color:var(--fg-2);background:rgba(34,26,51,.04)}
.nav-toggle svg{width:22px;height:22px}
.nav-toggle:hover{color:var(--brand);background:rgba(255,106,31,.08)}
.mobile-panel{display:none;background:var(--bg);border-top:1px solid var(--line)}
.mobile-panel.is-open{display:block;animation:panelIn .22s ease-out}
@keyframes panelIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
.mobile-panel a{display:block;position:relative;padding:14px 20px 14px 28px;font-size:15.5px;color:var(--fg-2);border-bottom:1px solid var(--line);line-height:48px;padding-top:0;padding-bottom:0}
.mobile-panel a::before{content:"";position:absolute;left:14px;top:50%;transform:translateY(-50%);width:6px;height:20px;border-radius:999px;background:var(--grad);opacity:.55}
.mobile-panel a:hover{color:var(--brand);background:rgba(255,106,31,.05)}
.mobile-panel .panel-cta{margin:14px 20px 18px;border-bottom:0;line-height:48px;height:48px;padding:0 22px;text-align:center;color:#fff}
.mobile-panel .panel-cta::before{display:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 28px;border-radius:var(--r-pill);
  font-size:15.5px;font-weight:700;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--sh-brand)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 34px rgba(255,106,31,.34);filter:brightness(1.04)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{background:transparent;border:1.5px solid var(--line-v);color:var(--brand-600)}
.btn-outline:hover{border-color:var(--brand);background:rgba(255,106,31,.06);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(1px)}
.btn-white{background:#fff;color:var(--brand-600)}
.btn-white:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(0,0,0,.16)}
.btn-white-ghost{background:transparent;border:1.5px solid rgba(255,255,255,.72);color:#fff}
.btn-white-ghost:hover{background:rgba(255,255,255,.14);transform:translateY(-1px)}
.btn-sm{min-height:42px;padding:0 20px;font-size:14.5px}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-size:15px;font-weight:700}
.text-link .arrow{transition:transform var(--ease)}
.text-link:hover .arrow{transform:translateX(4px)}
.text-link:hover{color:var(--brand)}

/* ---------- article hero ---------- */
.article-hero{
  position:relative;
  padding:26px 0 40px;
  background:
    radial-gradient(640px 320px at 90% -20%,rgba(122,63,242,.14),transparent 70%),
    radial-gradient(520px 280px at 4% 0%,rgba(255,106,31,.12),transparent 72%),
    var(--bg);
  border-bottom:1px solid var(--line);
}
.article-hero::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:3px;background:var(--grad)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--fg-3);padding-top:20px}
.breadcrumb a{color:var(--fg-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--fg-3);opacity:.6}
.breadcrumb .current{color:var(--fg-3);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{
  font-size:clamp(28px,3.8vw,44px);
  line-height:1.25;font-weight:800;
  margin-top:18px;max-width:24em;
}
.title-rule{width:72px;height:3px;border-radius:var(--r-pill);background:var(--grad);margin-top:20px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:18px;font-size:14px;color:var(--fg-3)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--fg-3);opacity:.6}
.pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:700;background:rgba(122,63,242,.10);color:#5B21C9;
}
.badge-lime{background:rgba(22,199,154,.14);color:#0E8F6F}

/* ---------- article layout ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,780px) 220px;
  gap:48px;justify-content:center;align-items:start;
  padding:44px 0 72px;
}
.article-body{font-size:17px;line-height:1.9;max-width:780px;overflow-wrap:break-word}
.article-body p{margin:0 0 1.2em}
.article-body h2{font-size:clamp(22px,2.4vw,28px);line-height:1.4;font-weight:800;margin:2em 0 .6em}
.article-body h3{font-size:19px;font-weight:700;margin:1.6em 0 .8em}
.article-body h4{font-size:17px;font-weight:700;margin:1.4em 0 .6em}
.article-body ul,.article-body ol{margin:0 0 1.2em}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:8px}
.article-body ul li::before{content:"";position:absolute;left:0;top:.68em;width:8px;height:8px;border-radius:3px;background:var(--grad)}
.article-body ol{counter-reset:step}
.article-body ol li{position:relative;padding-left:36px;margin-bottom:10px;counter-increment:step}
.article-body ol li::before{
  content:counter(step);position:absolute;left:0;top:.25em;width:24px;height:24px;border-radius:8px;
  background:var(--grad);color:#fff;font-size:12.5px;font-weight:700;display:grid;place-items:center;
}
.article-body blockquote{position:relative;margin:1.6em 0;padding:20px 24px 20px 26px;background:var(--bg-alt);border-radius:16px;color:var(--fg-2)}
.article-body blockquote::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:4px;border-radius:var(--r-pill);background:var(--grad)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:1.6em 0;box-shadow:var(--sh-1)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--fg-3);text-align:center;margin-top:10px}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand)}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.article-body thead th{background:var(--bg-alt)}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;vertical-align:top}
.article-body hr{border:0;height:1px;background:var(--line);margin:2em 0}
.article-body code{background:var(--bg-alt);border-radius:6px;padding:2px 6px;font-size:.92em}
.article-foot{display:flex;flex-wrap:wrap;align-items:center;gap:24px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line)}

.article-aside{position:sticky;top:96px;display:grid;gap:16px}
.aside-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:var(--sh-1)}
.aside-card h4{font-size:14px;font-weight:700;margin-bottom:12px}
.aside-list li{display:flex;justify-content:space-between;gap:10px;font-size:13.5px;color:var(--fg-2);padding:9px 0;border-bottom:1px solid var(--line)}
.aside-list li:last-child{border-bottom:0;padding-bottom:0}
.aside-list .k{color:var(--fg-3)}
.aside-cta{background:var(--grad);border-radius:18px;padding:20px;color:#fff;box-shadow:var(--sh-brand)}
.aside-cta h4{font-size:15.5px;font-weight:800;color:#fff;margin-bottom:8px}
.aside-cta p{font-size:13px;line-height:1.7;color:rgba(255,255,255,.9);margin-bottom:14px}
.aside-cta .btn{width:100%;min-height:42px;font-size:14px;padding:0 16px}

/* ---------- empty state ---------- */
.empty-state{
  border:1.5px dashed var(--line);border-radius:20px;background:var(--bg-alt);
  padding:60px 24px;text-align:center;
}
.empty-state .empty-mark{width:56px;height:56px;border-radius:18px;margin:0 auto 18px;background:var(--grad);opacity:.85}
.empty-state p{font-size:15px;color:var(--fg-2);margin-bottom:20px}

/* ---------- related ---------- */
.related{padding:72px 0;background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:32px}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:800}
.section-head .sub{font-size:14.5px;color:var(--fg-3);margin-top:8px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{
  display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);
  border-radius:18px;padding:14px;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-v)}
.rel-thumb{flex:0 0 96px;width:96px;aspect-ratio:16/10;border-radius:14px;overflow:hidden;background:var(--bg-alt)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.rel-card:hover .rel-thumb img{transform:scale(1.03)}
.rel-body{min-width:0}
.rel-body h3{font-size:16px;font-weight:700;line-height:1.45;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card:hover .rel-body h3{color:var(--brand)}
.rel-time{font-size:13px;color:var(--fg-3)}

/* ---------- cta ---------- */
.cta-band{padding:72px 0}
.cta-card{
  position:relative;overflow:hidden;
  background:var(--grad);border-radius:var(--r-cta);
  padding:clamp(32px,5vw,56px);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  color:#fff;box-shadow:0 24px 56px rgba(122,63,242,.24);
}
.cta-card::after{content:"";position:absolute;right:-60px;top:-80px;width:280px;height:280px;border-radius:50%;background:rgba(255,255,255,.12)}
.cta-card h2{font-size:clamp(24px,3vw,34px);font-weight:800;color:#fff;margin-bottom:10px}
.cta-card p{font-size:15px;color:rgba(255,255,255,.92);max-width:34em}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}

/* ---------- footer ---------- */
.site-footer{background:var(--bg);border-top:1px solid var(--line);padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px}
.footer-brand p{font-size:14px;color:var(--fg-2);margin-top:14px;max-width:24em}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:14px}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--fg-2);display:inline-block}
.footer-col a:hover{color:var(--brand);transform:translateX(2px)}
.footer-col .txt{font-size:14px;color:var(--fg-2);display:inline-block}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--fg-3);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,780px);gap:0}
  .article-aside{display:none}
  .nav-left{gap:18px}
  .nav-right{gap:16px}
}
@media (max-width:1023px){
  .nav-left{display:none}
  .nav-right .nav-link{display:none}
  .header-inner{display:grid;grid-template-columns:1fr auto 1fr;height:62px;gap:10px}
  .nav-toggle{display:grid;justify-self:start}
  .logo{justify-self:center}
  .nav-right{justify-self:end;flex:0 0 auto}
  .logo-text{font-size:16.5px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  body{font-size:16px}
  .article-hero{padding-bottom:32px}
  .article-title{font-size:clamp(26px,6vw,34px)}
  .article-layout{padding:32px 0 56px}
  .article-body{font-size:16.5px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .related{padding:48px 0}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .cta-band{padding:48px 0}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:480px){
  .container{padding:0 16px}
  .logo-text{font-size:15px}
  .logo-mark{width:32px;height:32px}
  .article-title{font-size:28px}
  .btn{min-height:46px;padding:0 22px;font-size:15px}
  .btn-sm{min-height:40px;padding:0 16px;font-size:14px}
  .rel-card{flex-direction:column}
  .rel-thumb{width:100%;flex:0 0 auto;aspect-ratio:16/9}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .rel-card:hover,.btn:hover{transform:none!important}
}

/* roulang page: category1 */
:root{
  --brand:#FF6A1F;
  --brand-600:#E4550C;
  --violet:#7A3FF2;
  --lime:#16C79A;
  --grad:linear-gradient(108deg,#FF8A2B 0%,#FF4D6D 48%,#7A3FF2 100%);
  --bg:#FFF8F3;
  --bg-alt:#F4F1FB;
  --ink-bg:#1B1233;
  --fg:#221A33;
  --fg-2:#5C5470;
  --fg-3:#8B849C;
  --line:rgba(34,26,51,.10);
  --line-violet:rgba(122,63,242,.16);
  --r-lg:22px;
  --r-img:18px;
  --r-sm:14px;
  --r-pill:999px;
  --r-cta:28px;
  --sh-1:0 6px 18px rgba(34,26,51,.06);
  --sh-2:0 16px 40px rgba(34,26,51,.10);
  --sh-brand:0 12px 30px rgba(255,106,31,.28);
  --t:.22s ease-out;
  --gutter:20px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--fg);
  background:var(--bg);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:rgba(255,106,31,.18)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--gutter)}
.txt{color:var(--fg-2)}
@media (min-width:768px){:root{--gutter:32px}}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background var(--t),border-color var(--t),box-shadow var(--t);
}
.site-header.is-scrolled{
  background:rgba(255,248,243,.94);
  border-bottom-color:var(--line);
  box-shadow:0 4px 18px rgba(34,26,51,.05);
}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  height:72px;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  cursor:pointer;
  color:var(--fg);
  justify-self:start;
  transition:border-color var(--t),color var(--t),transform var(--t);
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}
.nav-toggle svg{width:20px;height:20px}
.nav-left{display:flex;align-items:center;gap:24px;justify-self:start}
.nav-right{display:flex;align-items:center;gap:20px;justify-self:end}
.nav-link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:14.5px;
  color:var(--fg-2);
  white-space:nowrap;
  transition:color var(--t),transform var(--t);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:3px;border-radius:3px;
  background:var(--grad);
  opacity:0;transform:scaleX(.4);transform-origin:left center;
  transition:opacity var(--t),transform var(--t);
}
.nav-link:hover,.nav-link.is-active{color:var(--brand);transform:translateY(-1px)}
.nav-link:hover::after,.nav-link.is-active::after{opacity:1;transform:scaleX(1)}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:800;font-size:18px;letter-spacing:.2px;
  white-space:nowrap;justify-self:center;
  transition:transform var(--t);
}
.logo:hover{transform:translateY(-1px)}
.logo-mark{
  width:34px;height:34px;flex:0 0 34px;
  border-radius:11px;background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-brand);
}
.logo-mark svg{width:19px;height:19px}
.logo-text{background:linear-gradient(96deg,#221A33 40%,#7A3FF2 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.mobile-panel{display:none}
@media (max-width:1023px){
  .header-inner{height:60px;gap:10px}
  .nav-left{display:none}
  .nav-toggle{display:inline-flex}
  .nav-right .nav-link{display:none}
  .logo{font-size:15.5px;gap:8px}
  .logo-mark{width:30px;height:30px;flex:0 0 30px;border-radius:10px}
  .logo-mark svg{width:17px;height:17px}
  .btn-sm{padding:9px 16px;font-size:14px;min-height:0}
  .mobile-panel{
    display:block;
    max-height:0;overflow:hidden;opacity:0;
    background:rgba(255,248,243,.98);
    border-bottom:1px solid var(--line);
    transition:max-height .28s ease,opacity var(--t);
  }
  .mobile-panel.is-open{max-height:560px;opacity:1}
  .mobile-panel a{
    display:block;position:relative;
    padding:14px 20px 14px 26px;
    font-size:15px;color:var(--fg-2);
    border-bottom:1px solid var(--line);
  }
  .mobile-panel a::before{
    content:"";position:absolute;left:12px;top:16px;bottom:16px;width:5px;border-radius:3px;
    background:var(--grad);opacity:0;transition:opacity var(--t);
  }
  .mobile-panel a:hover,.mobile-panel a.is-active{color:var(--brand)}
  .mobile-panel a:hover::before,.mobile-panel a.is-active::before{opacity:1}
  .mobile-panel .panel-cta{
    margin:14px 20px 18px;padding:12px 18px;text-align:center;border-bottom:0;
    color:#fff;
  }
  .mobile-panel .panel-cta::before{display:none}
}
@media (max-width:380px){
  .logo-text{font-size:13.5px}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 30px;
  border-radius:var(--r-pill);
  font-size:15.5px;font-weight:700;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),color var(--t),filter var(--t);
}
.btn-sm{min-height:42px;padding:0 20px;font-size:14.5px}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--sh-brand)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 34px rgba(255,106,31,.34);filter:brightness(1.04)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--line-violet);color:var(--brand)}
.btn-ghost:hover{background:rgba(255,106,31,.06);border-color:var(--brand);transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--brand-600);box-shadow:0 12px 26px rgba(27,18,51,.18)}
.btn-light:hover{transform:translateY(-1px);box-shadow:0 16px 30px rgba(27,18,51,.22)}
.btn-light-ghost{background:transparent;border-color:rgba(255,255,255,.75);color:#fff}
.btn-light-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-1px)}
.btn:disabled{opacity:.55;cursor:not-allowed;filter:saturate(60%)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:700;font-size:14.5px;
  border-bottom:1px solid transparent;
  transition:color var(--t);
}
.link-arrow span{transition:transform var(--t)}
.link-arrow:hover{color:var(--brand-600)}
.link-arrow:hover span{transform:translateX(4px)}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:44px 0 60px;
  background:var(--bg);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(560px 360px at 88% 10%, rgba(255,106,31,.16), transparent 70%),
    radial-gradient(520px 380px at 72% 92%, rgba(122,63,242,.13), transparent 72%);
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--grad);
}
.hero .container{position:relative;z-index:1}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--fg-3);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--fg-2);transition:color var(--t)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--fg-3);opacity:.7}
.breadcrumb .current{color:var(--fg-3)}
.hero-grid{
  display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line-violet);
  font-size:13px;color:var(--violet);font-weight:700;
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--grad)}
.hero h1{
  font-size:clamp(34px,5vw,52px);
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.5px;
  margin-bottom:18px;
}
.hero-sub{
  font-size:17px;color:var(--fg-2);
  max-width:34em;margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.chips{display:flex;flex-wrap:wrap;gap:12px}
.chip{
  display:inline-flex;align-items:center;gap:9px;
  padding:8px 16px;border-radius:var(--r-pill);
  background:#fff;
  border:1px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  font-size:13px;color:var(--fg-2);
  box-shadow:var(--sh-1);
}
.chip b{font-size:16px;font-weight:800;color:var(--lime);font-variant-numeric:tabular-nums}
.hero-media{
  border-radius:var(--r-img);overflow:hidden;
  box-shadow:var(--sh-2);
  border:1px solid var(--line);
  aspect-ratio:16/10;
  background:var(--bg-alt);
}
.hero-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.hero-media:hover img{transform:scale(1.03)}

/* ---------- section ---------- */
.section{padding:72px 0}
.section-alt{background:var(--bg-alt)}
.section-head{max-width:760px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-title{
  font-size:clamp(26px,3vw,38px);
  line-height:1.25;font-weight:800;letter-spacing:-.3px;
}
.section-title .accent{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.section-desc{margin-top:14px;color:var(--fg-2);font-size:16px;max-width:44em}
.section-head.center .section-desc{margin-left:auto;margin-right:auto}

/* ---------- layout with sticky side ---------- */
.layout{
  display:grid;grid-template-columns:260px minmax(0,1fr);gap:40px;align-items:start;
}
.side-nav{position:sticky;top:100px}
.side-title{
  font-size:13px;font-weight:700;color:var(--fg-3);
  letter-spacing:1px;margin-bottom:14px;
}
.side-list{display:flex;flex-direction:column;gap:4px}
.side-link{
  position:relative;display:block;
  padding:10px 12px 10px 16px;
  font-size:14px;color:var(--fg-2);
  border-radius:10px;
  transition:color var(--t),background var(--t);
}
.side-link::before{
  content:"";position:absolute;left:2px;top:11px;bottom:11px;width:3px;border-radius:3px;
  background:var(--grad);opacity:0;transition:opacity var(--t);
}
.side-link:hover{color:var(--brand);background:rgba(255,106,31,.06)}
.side-link.is-current{color:var(--brand);font-weight:700}
.side-link.is-current::before{opacity:1}
.side-cta{
  margin-top:22px;padding:22px 20px;
  border-radius:var(--r-img);
  background:var(--grad);color:#fff;
  box-shadow:var(--sh-brand);
}
.side-cta h3{font-size:16.5px;font-weight:800;line-height:1.45;margin-bottom:8px}
.side-cta p{font-size:13px;line-height:1.7;color:rgba(255,255,255,.9);margin-bottom:16px}
.side-cta .btn-light{width:100%;min-height:44px;font-size:14.5px}

@media (max-width:1023px){
  .layout{grid-template-columns:1fr;gap:28px}
  .side-nav{position:static}
  .side-title{display:none}
  .side-list{
    flex-direction:row;overflow-x:auto;gap:8px;
    padding-bottom:6px;-webkit-overflow-scrolling:touch;
  }
  .side-list::-webkit-scrollbar{height:6px}
  .side-list::-webkit-scrollbar-thumb{background:rgba(122,63,242,.25);border-radius:6px}
  .side-link{
    white-space:nowrap;padding:9px 16px;
    background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
    font-size:13.5px;
  }
  .side-link::before{display:none}
  .side-link.is-current{border-color:var(--line-violet);background:#fff}
  .side-cta{margin-top:18px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
  .side-cta p{margin-bottom:0}
  .side-cta .btn-light{width:auto;padding:0 24px}
}

/* ---------- content grid ---------- */
.content-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.card-lg{
  grid-column:1/-1;
  display:grid;grid-template-columns:.85fr 1fr;gap:0;overflow:hidden;
}
.card-lg .card-media{position:relative;min-height:280px;background:var(--bg-alt);overflow:hidden}
.card-lg .card-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.card-lg:hover .card-media img{transform:scale(1.03)}
.card-body{padding:30px}
.card-body h2{font-size:clamp(21px,2.2vw,26px);font-weight:800;line-height:1.35;margin-bottom:14px}
.card-sm{padding:26px 24px;display:flex;flex-direction:column}
.card-sm h3{font-size:18px;font-weight:800;line-height:1.45;margin-bottom:10px}
.card-sm p{font-size:14.5px;color:var(--fg-2);margin-bottom:16px}
.card-sm .link-arrow{margin-top:auto}
.tag{
  display:inline-block;padding:5px 13px;border-radius:var(--r-pill);
  background:rgba(122,63,242,.10);color:var(--violet);
  font-size:12.5px;font-weight:700;margin-bottom:12px;
}
.list-check li{
  position:relative;padding-left:26px;margin-bottom:10px;
  font-size:15px;color:var(--fg-2);
}
.list-check li::before{
  content:"";position:absolute;left:2px;top:.62em;
  width:9px;height:9px;border-radius:3px;background:var(--brand);
  transform:rotate(0deg);
}
.list-num{counter-reset:ln}
.list-num li{
  position:relative;padding-left:44px;margin-bottom:16px;
  font-size:15px;color:var(--fg-2);
  counter-increment:ln;
}
.list-num li::before{
  content:counter(ln);
  position:absolute;left:0;top:1px;
  width:30px;height:30px;border-radius:10px;
  background:var(--grad);color:#fff;
  font-size:14px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.list-num li strong{display:block;color:var(--fg);font-size:15.5px;margin-bottom:2px}

/* ---------- compare ---------- */
.compare{
  display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
  margin-top:56px;padding-top:56px;border-top:1px dashed var(--line);
}
.compare h3{font-size:22px;font-weight:800;margin-bottom:16px}
.compare-media{
  border-radius:20px;overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-2);aspect-ratio:3/2;background:var(--bg-alt);
}
.compare-media img{width:100%;height:100%;object-fit:cover}

/* ---------- table ---------- */
.table-wrap{
  margin-top:34px;overflow-x:auto;border-radius:var(--r-img);
  border:1px solid var(--line);background:#fff;
}
table{width:100%;border-collapse:collapse;min-width:640px}
th,td{
  text-align:left;padding:16px 20px;font-size:14.5px;
  border-bottom:1px solid var(--line);
}
th{background:var(--bg-alt);font-weight:700;color:var(--fg);font-size:14px;white-space:nowrap}
td{color:var(--fg-2)}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover td{background:rgba(255,106,31,.04);color:var(--fg)}
.table-wrap::-webkit-scrollbar{height:8px}
.table-wrap::-webkit-scrollbar-thumb{background:rgba(122,63,242,.25);border-radius:8px}

/* ---------- update list ---------- */
.update-list{display:flex;flex-direction:column;gap:14px}
.update-item{
  display:grid;grid-template-columns:132px minmax(0,1fr);gap:24px;
  padding:22px 26px;background:#fff;
  border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.update-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--line-violet)}
.update-date{
  font-size:13.5px;color:var(--fg-3);
  font-variant-numeric:tabular-nums;padding-top:2px;
}
.update-item h3{font-size:17px;font-weight:800;margin-bottom:6px}
.update-item p{font-size:14.5px;color:var(--fg-2)}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;
  font-size:17px;font-weight:700;color:var(--fg);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;
  font-size:22px;font-weight:700;line-height:1;color:var(--fg-3);
  transition:transform var(--t),color var(--t);
}
.faq-item[open]{
  border-color:rgba(255,106,31,.35);
  box-shadow:var(--sh-1);
}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--brand)}
.faq-item[open] summary{padding-bottom:12px}
.faq-body{padding:0 24px 22px;font-size:15.5px;color:var(--fg-2);line-height:1.85}
.faq-body p{margin:0}

/* ---------- CTA ---------- */
.cta-band{padding:72px 0}
.cta-inner{
  border-radius:var(--r-cta);
  background:var(--grad);
  padding:52px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 24px 60px rgba(122,63,242,.24);
  color:#fff;
}
.cta-inner h2{font-size:clamp(24px,2.6vw,32px);font-weight:800;line-height:1.3;margin-bottom:10px}
.cta-inner p{font-size:15px;color:rgba(255,255,255,.92);max-width:30em}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink-bg);color:#fff;
  padding:64px 0 0;
  border-top:1px solid rgba(255,255,255,.08);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;
  padding-bottom:44px;
}
.footer-brand .logo{color:#fff;margin-bottom:14px}
.footer-brand .logo-text{background:none;-webkit-text-fill-color:#fff;color:#fff}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.62);max-width:24em}
.footer-col h4{
  font-size:14px;font-weight:700;margin-bottom:16px;color:#fff;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{
  display:inline-block;font-size:14px;color:rgba(255,255,255,.66);
  transition:color var(--t),transform var(--t);
}
.footer-col a:hover{color:var(--brand);transform:translateX(2px)}
.footer-col .txt{font-size:14px;color:rgba(255,255,255,.6);line-height:1.7}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .section{padding:56px 0}
  .hero{padding:36px 0 48px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-media{max-width:640px}
  .card-lg{grid-template-columns:1fr}
  .card-lg .card-media{min-height:220px;aspect-ratio:16/10}
  .compare{grid-template-columns:1fr;gap:28px;margin-top:44px;padding-top:44px}
  .compare-media{order:-1}
  .foooter-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:40px 32px}
}
@media (max-width:767px){
  .section{padding:48px 0}
  .content-grid{grid-template-columns:1fr}
  .card-body{padding:24px}
  .card-sm{padding:22px 20px}
  .update-item{grid-template-columns:1fr;gap:8px;padding:20px}
  .update-date{padding-top:0}
  .cta-band{padding:48px 0}
  .cta-inner{padding:34px 24px;border-radius:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:520px){
  body{font-size:16px}
  .hero h1{font-size:30px}
  .chips{gap:10px}
  .chip{padding:7px 13px;font-size:12.5px}
  .chip b{font-size:15px}
  .btn{padding:0 22px;font-size:15px;min-height:46px}
  .btn-sm{padding:0 16px;font-size:13.5px;min-height:40px}
  .faq-item summary{font-size:16px;padding:18px 18px}
  .faq-body{padding:0 18px 18px}
  .side-cta{padding:20px 18px}
}

/* roulang page: category2 */
:root{
  --brand:#FF6A1F;
  --brand-600:#E4550C;
  --violet:#7A3FF2;
  --lime:#16C79A;
  --grad:linear-gradient(108deg,#FF8A2B 0%,#FF4D6D 48%,#7A3FF2 100%);
  --bg:#FFF8F3;
  --bg-alt:#F4F1FB;
  --ink-bg:#1B1233;
  --fg:#221A33;
  --fg-2:#5C5470;
  --fg-3:#8B849C;
  --line:rgba(34,26,51,.10);
  --line-v:rgba(122,63,242,.16);
  --r-lg:22px;
  --r-md:18px;
  --r-sm:14px;
  --r-pill:999px;
  --r-cta:28px;
  --sh-1:0 6px 18px rgba(34,26,51,.06);
  --sh-2:0 16px 40px rgba(34,26,51,.10);
  --sh-brand:0 12px 30px rgba(255,106,31,.28);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--fg);
  background:var(--bg);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 32px;}}

/* ---------- 通用排版 ---------- */
h1{font-size:clamp(34px,5vw,54px);line-height:1.15;font-weight:800;letter-spacing:-.5px;}
h2{font-size:clamp(26px,3vw,38px);line-height:1.25;font-weight:800;letter-spacing:-.3px;}
h3{font-size:21px;line-height:1.4;font-weight:700;}
h4{font-size:17.5px;line-height:1.5;font-weight:700;}
p{max-width:44em;}
.lead{color:var(--fg-2);font-size:16.5px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--violet);
  background:rgba(122,63,242,.09);
  border:1px solid var(--line-v);
  padding:6px 13px;border-radius:var(--r-pill);
  margin-bottom:16px;letter-spacing:.3px;
}
.section{padding:72px 0;}
.section.alt{background:var(--bg-alt);}
.section-head{max-width:780px;margin-bottom:38px;}
.section-head h2{margin-bottom:14px;}
.grad-line{height:3px;width:100%;background:var(--grad);border-radius:3px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 28px;border-radius:var(--r-pill);
  font-size:15.5px;font-weight:700;border:1.5px solid transparent;
  transition:transform .22s ease-out,box-shadow .22s ease-out,background .22s ease-out,color .22s ease-out,border-color .22s ease-out;
  white-space:nowrap;
}
.btn-sm{min-height:40px;padding:0 20px;font-size:14px;}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--sh-brand);}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 34px rgba(255,106,31,.34);filter:brightness(1.03);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:transparent;border-color:rgba(255,106,31,.5);color:var(--brand-600);}
.btn-outline:hover{border-color:var(--brand);background:rgba(255,106,31,.06);transform:translateY(-1px);}
.btn-outline:active{transform:translateY(1px);}
.btn-white{background:#fff;color:var(--brand-600);box-shadow:0 10px 24px rgba(27,18,51,.18);}
.btn-white:hover{transform:translateY(-1px);}
.btn-ghost-w{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.78);color:#fff;}
.btn-ghost-w:hover{background:rgba(255,255,255,.18);transform:translateY(-1px);}
.btn:disabled{opacity:.6;cursor:not-allowed;filter:saturate(.6);}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-weight:700;font-size:15px;}
.text-link .ar{transition:transform .22s ease-out;}
.text-link:hover .ar{transform:translateX(4px);}
.text-link:hover{color:var(--brand);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,248,243,0);
  border-bottom:1px solid transparent;
  transition:background .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.site-header.scrolled{
  background:rgba(255,248,243,.94);
  border-bottom:1px solid var(--line);
  box-shadow:0 4px 18px rgba(34,26,51,.05);
}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  height:72px;
}
.nav-left{grid-column:1;display:flex;align-items:center;gap:4px;justify-self:start;}
.nav-right{grid-column:3;display:flex;align-items:center;gap:8px;justify-self:end;}
.nav-link{
  position:relative;
  font-size:14.5px;color:var(--fg-2);font-weight:600;
  padding:8px 10px;border-radius:10px;
  transition:color .22s ease-out,transform .22s ease-out;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:10px;right:10px;bottom:2px;height:3px;
  border-radius:3px;background:var(--grad);opacity:0;transition:opacity .22s ease-out;
}
.nav-link:hover{color:var(--brand);transform:translateY(-1px);}
.nav-link.is-active{color:var(--brand-600);}
.nav-link.is-active::after{opacity:1;}
.logo{grid-column:2;justify-self:center;display:inline-flex;align-items:center;gap:10px;}
.logo-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad);
  display:grid;place-items:center;box-shadow:var(--sh-brand);flex:none;
}
.logo-mark svg{width:19px;height:19px;}
.logo-text{font-size:17px;font-weight:800;letter-spacing:.2px;color:var(--fg);white-space:nowrap;}
.nav-toggle{
  display:none;grid-column:1;justify-self:start;
  width:44px;height:44px;border:none;border-radius:12px;
  background:transparent;color:var(--fg);
  place-items:center;align-items:center;justify-content:center;
}
.nav-toggle svg{width:24px;height:24px;}
.nav-toggle:hover{background:rgba(34,26,51,.05);}
.mobile-panel{display:none;}

@media (max-width:1023px){
  .header-inner{grid-template-columns:44px 1fr auto;height:60px;gap:8px;}
  .nav-toggle{display:grid;}
  .nav-left{display:none;}
  .nav-right .nav-link{display:none;}
  .logo-text{font-size:15px;}
  .mobile-panel{
    display:grid;
    position:absolute;left:0;right:0;top:100%;
    background:#fff;
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    box-shadow:var(--sh-2);
    padding:8px 20px 20px;
    max-height:0;opacity:0;overflow:hidden;pointer-events:none;
    transition:max-height .28s ease-out,opacity .22s ease-out,padding .22s ease-out;
  }
  .mobile-panel.open{max-height:560px;opacity:1;pointer-events:auto;}
  .mobile-panel a{
    position:relative;
    padding:13px 0 13px 16px;
    font-size:15px;font-weight:600;color:var(--fg-2);
    border-bottom:1px solid var(--line);
    transition:color .22s ease-out;
  }
  .mobile-panel a::before{
    content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
    width:6px;height:18px;border-radius:3px;background:var(--grad);
  }
  .mobile-panel a:hover{color:var(--brand);}
  .mobile-panel a.is-active{color:var(--brand-600);}
  .mobile-panel a.panel-cta{
    margin-top:16px;border-bottom:none;padding:0 20px;color:#fff;
    justify-content:center;font-size:15px;
  }
  .mobile-panel a.panel-cta::before{display:none;}
}
@media (max-width:520px){
  .logo-text{font-size:13.5px;letter-spacing:0;}
  .logo-mark{width:30px;height:30px;border-radius:10px;}
  .logo-mark svg{width:17px;height:17px;}
  .nav-right .btn-sm{padding:0 14px;font-size:13px;min-height:38px;}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:var(--bg-alt);
  padding:42px 0 54px;
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;right:-140px;top:-160px;width:440px;height:440px;
  background:radial-gradient(circle,rgba(255,106,31,.22),rgba(255,106,31,0) 68%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;left:-100px;bottom:-180px;width:380px;height:380px;
  background:radial-gradient(circle,rgba(122,63,242,.16),rgba(122,63,242,0) 70%);
  pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.hero-line{position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--grad);z-index:3;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--fg-3);margin-bottom:20px;
}
.breadcrumb a{color:var(--fg-2);transition:color .22s ease-out;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--fg-3);}
.breadcrumb .cur{color:var(--fg-3);}
.hero h1{margin-bottom:16px;}
.hero-sub{font-size:17px;color:var(--fg-2);max-width:44em;}

/* ---------- 图文分栏 ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;}
.split.rev .split-media{order:2;}
.figure{
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-2);
  background:var(--bg-alt);aspect-ratio:16/10;
}
.figure img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out;}
.figure:hover img{transform:scale(1.03);}
.split-text h2{margin-bottom:16px;}
.split-text p+p{margin-top:14px;}
.ticks{margin-top:20px;display:grid;gap:12px;}
.ticks li{position:relative;padding-left:30px;font-size:15.5px;color:var(--fg-2);line-height:1.8;}
.ticks li::before{
  content:"";position:absolute;left:0;top:5px;width:20px;height:20px;border-radius:7px;
  background:rgba(255,106,31,.13);
}
.ticks li::after{
  content:"";position:absolute;left:6px;top:11px;width:8px;height:4px;
  border-left:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(-45deg);
}
.ticks li strong{color:var(--fg);font-weight:700;}

/* ---------- 步骤流 ---------- */
.timeline{max-width:920px;margin:0 auto;}
.step{
  position:relative;
  display:grid;
  grid-template-columns:44px minmax(0,1fr);
  gap:22px;
  padding-bottom:38px;
}
.step::before{
  content:"";position:absolute;left:21px;top:54px;bottom:6px;width:2px;background:var(--line);
}
.step:last-child{padding-bottom:0;}
.step:last-child::before{display:none;}
.step-num{
  width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;
  font-size:15px;font-weight:800;color:var(--violet);
  font-variant-numeric:tabular-nums;
  border:2px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  box-shadow:var(--sh-1);
}
.step-body{padding-top:4px;}
.step-body h3{font-size:19px;margin-bottom:8px;}
.step-body p{color:var(--fg-2);font-size:15.5px;}
.step-body p+p{margin-top:8px;}
@media (min-width:1024px){
  .step:nth-child(even){grid-template-columns:minmax(0,1fr) 44px;}
  .step:nth-child(even) .step-body{grid-column:1;grid-row:1;text-align:right;}
  .step:nth-child(even) .step-body p{margin-left:auto;}
  .step:nth-child(even) .step-num{grid-column:2;grid-row:1;}
  .step:nth-child(even)::before{left:auto;right:21px;}
}

/* ---------- 图文交替块 ---------- */
.blocks{display:grid;gap:64px;}
.block{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
}
.block .block-text h3{margin-bottom:14px;}
.block .block-text p{color:var(--fg-2);font-size:15.5px;}
.block .block-text p+p{margin-top:12px;}
.block:nth-child(even) .block-media{order:2;}
.ordered{counter-reset:item;margin-top:18px;display:grid;gap:12px;}
.ordered li{
  position:relative;padding-left:44px;color:var(--fg-2);font-size:15.5px;line-height:1.8;
}
.ordered li::before{
  counter-increment:item;content:counter(item);
  position:absolute;left:0;top:2px;width:28px;height:28px;border-radius:9px;
  display:grid;place-items:center;
  font-size:13.5px;font-weight:800;color:#fff;
  background:var(--grad);
}

/* ---------- 深色带 ---------- */
.section.ink{
  position:relative;
  background:var(--ink-bg);
  color:#fff;
  padding:64px 0;
}
.section.ink::before,
.section.ink::after{
  content:"";position:absolute;left:0;right:0;height:1px;background:var(--grad);
}
.section.ink::before{top:0;}
.section.ink::after{bottom:0;}
.ink h2{color:#fff;margin-bottom:14px;}
.ink .lead{color:rgba(255,255,255,.74);}
.badges{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:38px;}
.badge{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.18);
  border-radius:20px;
  padding:22px 20px;
  transition:transform .22s ease-out,background .22s ease-out,border-color .22s ease-out;
}
.badge:hover{transform:translateY(-3px);background:rgba(255,255,255,.10);border-color:rgba(122,63,242,.55);}
.badge .num{
  font-size:clamp(30px,3.6vw,44px);font-weight:800;line-height:1.1;
  color:var(--lime);font-variant-numeric:tabular-nums;
}
.badge .num .unit{font-size:15px;font-weight:700;color:rgba(255,255,255,.82);margin-left:6px;}
.badge .lbl{font-size:13.5px;color:rgba(255,255,255,.72);margin-top:10px;line-height:1.6;}
.ink-note{font-size:13px;color:rgba(255,255,255,.56);margin-top:28px;}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto;display:grid;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  overflow:hidden;
  transition:border-color .22s ease-out,box-shadow .22s ease-out;
}
.faq-item:hover{border-color:var(--line-v);}
.faq-item[open]{border-color:rgba(255,106,31,.42);box-shadow:var(--sh-1);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;
  font-size:17px;font-weight:700;color:var(--fg);
  transition:color .22s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:22px;font-weight:400;line-height:1;
  color:var(--fg-3);flex:none;
  transition:transform .22s ease-out,color .22s ease-out;
}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--brand);}
.faq-item summary:hover{color:var(--brand-600);}
.faq-body{padding:0 22px 22px;font-size:15.5px;color:var(--fg-2);line-height:1.85;}
.faq-body p+p{margin-top:10px;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--grad);
  border-radius:var(--r-cta);
  padding:52px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  color:#fff;box-shadow:var(--sh-2);
}
.cta-band h2{color:#fff;font-size:clamp(24px,2.6vw,34px);margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.9);font-size:15px;max-width:36em;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:none;}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:56px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;
  padding-bottom:40px;
}
.footer-brand .logo{justify-self:start;margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--fg-2);max-width:24em;}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:16px;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a,.footer-col .txt{
  font-size:14px;color:var(--fg-2);display:inline-block;
  transition:color .22s ease-out,transform .22s ease-out;
}
.footer-col a:hover{color:var(--brand-600);transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:18px 0 22px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--fg-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .section{padding:60px 0;}
  .split{grid-template-columns:1fr;gap:32px;}
  .split.rev .split-media{order:0;}
  .blocks{gap:52px;}
  .block{grid-template-columns:1fr;gap:28px;}
  .block:nth-child(even) .block-media{order:0;}
  .badges{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .cta-band{padding:44px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .section{padding:48px 0;}
  .hero{padding:32px 0 42px;}
  .hero-sub{font-size:16px;}
  .faq-item summary{padding:16px 18px;font-size:16px;}
  .faq-body{padding:0 18px 18px;}
  .cta-band{flex-direction:column;align-items:flex-start;gap:26px;padding:34px 26px;border-radius:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .section.ink{padding:52px 0;}
}
@media (max-width:520px){
  h1{font-size:30px;}
  .badges{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .step{gap:16px;padding-bottom:30px;}
  .step::before{left:21px;}
  .figure{aspect-ratio:16/11;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  .figure:hover img,.badge:hover,.nav-link:hover,.btn:hover{transform:none;}
}