/* roulang page: index */
:root{
  --bg-night:#100E24;
  --bg-hero-a:#120F2C;
  --bg-hero-b:#241B4E;
  --bg-page:#F7F6FC;
  --surface:#FFFFFF;
  --primary:#5B4BE8;
  --primary-2:#8C6BFF;
  --accent:#17C3B2;
  --hot:#FF8A3D;
  --ink:#17152E;
  --ink-2:#4C4A66;
  --ink-3:#8B89A3;
  --line:#E7E4F5;
  --danger:#E5484D;
  --radius-card:24px;
  --radius-lg:28px;
  --radius-img:18px;
  --shadow-1:0 2px 4px rgba(23,21,46,.04),0 12px 32px rgba(91,75,232,.08);
  --shadow-2:0 18px 40px rgba(91,75,232,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",Inter,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.8;color:var(--ink);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
@media (min-width:1440px){:root{--container:1280px}}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 8px 26px rgba(23,21,46,.09)}
.nav-wrap{display:flex;align-items:center;gap:22px;height:74px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex:none;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 8px 20px rgba(91,75,232,.28);
}
.brand-mark svg{width:21px;height:21px;display:block}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.2px;white-space:nowrap;color:var(--ink)}
.brand-text em{font-style:normal;font-weight:500;font-size:14px;color:var(--ink-2);margin-left:2px}
.nav-sep{width:1px;height:22px;background:var(--line);flex:none}
.nav-links{display:flex;align-items:center;gap:2px;flex:1;min-width:0}
.nav-links a{
  position:relative;padding:8px 14px;border-radius:999px;
  font-size:15px;color:var(--ink-2);white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:16%;right:16%;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
  transform:scaleX(0);transform-origin:center;transition:transform .22s var(--ease);
}
.nav-links a:hover{color:var(--primary);background:rgba(91,75,232,.06)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--primary);font-weight:600}
.nav-tools{display:flex;align-items:center;gap:12px;flex:none}
.nav-search{
  display:flex;align-items:center;gap:8px;width:220px;height:40px;padding:0 14px;
  border:1px solid var(--line);border-radius:999px;background:#fff;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(91,75,232,.12)}
.nav-search svg{width:15px;height:15px;flex:none;color:var(--ink-3)}
.nav-search input{border:0;outline:none;background:transparent;width:100%;font-size:14px;line-height:1}
.nav-search input::placeholder{color:var(--ink-3)}
.nav-login{font-size:14px;color:var(--ink-2);padding:6px 4px}
.nav-login:hover{color:var(--primary)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,14,36,.5);
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s var(--ease);z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:82%;max-width:360px;z-index:80;
  background:#fff;padding:26px 22px;overflow-y:auto;
  transform:translateX(102%);transition:transform .3s var(--ease);
  box-shadow:-20px 0 50px rgba(23,21,46,.16);
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-head strong{font-size:16px}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:#fff;display:grid;place-items:center;font-size:16px;color:var(--ink-2)}
.drawer-links a{
  display:block;padding:14px 14px;border-radius:14px;font-size:16px;color:var(--ink-2);
  border:1px solid transparent;
}
.drawer-links a:hover{background:rgba(91,75,232,.06);color:var(--primary)}
.drawer-links a.active{background:rgba(91,75,232,.08);color:var(--primary);font-weight:600;border-color:rgba(91,75,232,.18)}
.drawer-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:12px;margin:22px 0 18px}
.drawer-search input{border:0;outline:none;background:transparent;width:100%;font-size:14px}
.drawer .btn{width:100%;justify-content:center}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.2px;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn:active{transform:scale(.98)}
.btn svg{width:15px;height:15px;flex:none}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 10px 24px rgba(91,75,232,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(91,75,232,.36)}
.btn-hot{background:var(--hot);color:#fff;box-shadow:0 10px 24px rgba(255,138,61,.3)}
.btn-hot:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(255,138,61,.38)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-light{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.28);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.18);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(135deg,var(--bg-hero-a) 0%,var(--bg-hero-b) 100%);
  padding:78px 0 72px;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.22;
  background-image:
    radial-gradient(1.5px 1.5px at 8% 22%,#fff,transparent 100%),
    radial-gradient(1px 1px at 18% 68%,#fff,transparent 100%),
    radial-gradient(1.5px 1.5px at 29% 14%,#fff,transparent 100%),
    radial-gradient(1px 1px at 41% 76%,#fff,transparent 100%),
    radial-gradient(1.5px 1.5px at 55% 30%,#fff,transparent 100%),
    radial-gradient(1px 1px at 63% 62%,#fff,transparent 100%),
    radial-gradient(1.5px 1.5px at 74% 18%,#fff,transparent 100%),
    radial-gradient(1px 1px at 83% 74%,#fff,transparent 100%),
    radial-gradient(1.5px 1.5px at 92% 42%,#fff,transparent 100%),
    radial-gradient(1px 1px at 47% 8%,#fff,transparent 100%),
    radial-gradient(1px 1px at 12% 88%,#fff,transparent 100%),
    radial-gradient(1.5px 1.5px at 88% 90%,#fff,transparent 100%);
}
.hero::after{
  content:"";position:absolute;right:-160px;top:-140px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(140,107,255,.42),transparent 68%);pointer-events:none;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.07);
  font-size:13px;color:rgba(255,255,255,.86);margin-bottom:22px;
}
.hero-eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;font-style:normal}
.hero h1{
  font-size:clamp(30px,4.2vw,50px);line-height:1.25;font-weight:700;letter-spacing:-.5px;
  margin:0 0 20px;color:#fff;
}
.hero h1 span{
  background:linear-gradient(120deg,#B7A6FF,#6FE3D4);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;line-height:1.8;color:rgba(255,255,255,.78);max-width:520px;margin-bottom:26px}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px}
.stat-badge{
  display:flex;align-items:baseline;gap:7px;padding:11px 18px;border-radius:999px;
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);
}
.stat-badge b{font-size:22px;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:-.5px;color:#fff}
.stat-badge span{font-size:12px;color:rgba(255,255,255,.68)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-media{position:relative}
.hero-media-frame{
  border-radius:28px;overflow:hidden;border:1px solid rgba(255,255,255,.16);
  box-shadow:0 30px 70px rgba(10,8,30,.5);
}
.hero-media-frame img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-float{
  position:absolute;left:-18px;bottom:26px;background:#fff;color:var(--ink);
  border-radius:18px;padding:14px 18px;box-shadow:0 18px 40px rgba(10,8,30,.28);
  display:flex;align-items:center;gap:12px;max-width:250px;
}
.hero-float b{display:block;font-size:14px}
.hero-float small{font-size:12px;color:var(--ink-3);display:block;line-height:1.5}
.hero-float .dot{width:34px;height:34px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--primary-2));display:grid;place-items:center;color:#fff;font-size:15px;flex:none}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{max-width:720px;margin-bottom:48px}
.section-head h2{
  position:relative;padding-left:18px;font-size:clamp(24px,3vw,34px);font-weight:700;
  letter-spacing:-.3px;line-height:1.35;margin-bottom:14px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--primary),var(--primary-2));
}
.section-head p{color:var(--ink-2);font-size:16px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head.center h2{padding-left:0}
.section-head.center h2::before{position:static;display:block;width:44px;height:4px;margin:0 auto 16px}

/* ============ 痛点 ============ */
.pain-list{display:grid;gap:20px}
.pain-item{
  display:grid;grid-template-columns:104px 1fr;gap:24px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 30px;box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.pain-item:nth-child(odd){margin-left:40px}
.pain-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.pain-num{
  font-size:40px;font-weight:700;line-height:1;font-variant-numeric:tabular-nums;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.pain-body h3{font-size:19px;font-weight:600;margin-bottom:6px}
.pain-body p{color:var(--ink-2);font-size:15px;line-height:1.75}

/* ============ 解决方案 ============ */
.solution{
  display:grid;grid-template-columns:45fr 55fr;gap:40px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;box-shadow:var(--shadow-1);margin-bottom:24px;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.solution:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.solution.reverse .solution-media{order:2}
.solution-media{border-radius:var(--radius-img);overflow:hidden;position:relative}
.solution-media img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .28s var(--ease)}
.solution:hover .solution-media img{transform:scale(1.03)}
.solution-body{padding:8px 10px}
.solution-tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:999px;
  background:rgba(23,195,178,.1);color:#0E8E82;font-size:12px;font-weight:600;margin-bottom:14px;
}
.solution-body h3{font-size:22px;font-weight:700;letter-spacing:-.2px;margin-bottom:12px}
.solution-body p{color:var(--ink-2);font-size:15px;margin-bottom:16px}
.solution-points{display:grid;gap:10px;margin-bottom:20px}
.solution-points li{position:relative;padding-left:24px;font-size:14.5px;color:var(--ink-2)}
.solution-points li::before{
  content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
}
.link-arrow{color:var(--primary);font-weight:600;font-size:15px;border-bottom:2px solid transparent;padding-bottom:2px}
.link-arrow:hover{border-bottom-color:var(--primary)}

/* ============ 数据区 ============ */
.metrics{
  position:relative;overflow:hidden;color:#fff;
  background:var(--bg-night);border-radius:32px;padding:56px 44px;
}
.metrics::before{
  content:"";position:absolute;right:-120px;bottom:-160px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(91,75,232,.5),transparent 70%);
}
.metrics-head{position:relative;z-index:2;max-width:640px;margin-bottom:40px}
.metrics-head h2{font-size:clamp(24px,3vw,32px);font-weight:700;margin-bottom:12px;letter-spacing:-.3px}
.metrics-head p{color:rgba(255,255,255,.7);font-size:15px}
.metrics-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.metric{
  padding:26px 22px;border-radius:var(--radius-card);
  border:1px solid rgba(255,255,255,.13);background:rgba(255,255,255,.045);
  transition:background .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease);
}
.metric:hover{background:rgba(255,255,255,.09);transform:translateY(-4px);border-color:rgba(140,107,255,.5)}
.metric b{
  display:block;font-size:34px;font-weight:700;line-height:1.1;letter-spacing:-.6px;
  font-variant-numeric:tabular-nums;margin-bottom:8px;
}
.metric b i{font-size:14px;font-style:normal;font-weight:500;color:rgba(255,255,255,.6);margin-left:5px}
.metric span{font-size:13.5px;color:rgba(255,255,255,.66);line-height:1.6}

/* ============ 证言 ============ */
.testi-track{
  display:flex;gap:22px;overflow-x:auto;padding:6px 4px 22px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.testi-track::-webkit-scrollbar{height:6px}
.testi-track::-webkit-scrollbar-thumb{background:rgba(91,75,232,.28);border-radius:999px}
.testi-card{
  flex:0 0 380px;scroll-snap-align:start;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;
  box-shadow:var(--shadow-1);display:flex;flex-direction:column;gap:16px;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.testi-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.testi-quote{
  font-family:Georgia,"Songti SC",serif;font-size:44px;line-height:.7;
  color:var(--primary-2);opacity:.4;height:22px;
}
.testi-card p{color:var(--ink-2);font-size:15px;line-height:1.85;flex:1}
.testi-person{display:flex;align-items:center;gap:12px;border-top:1px solid var(--line);padding-top:16px}
.testi-avatar{
  width:42px;height:42px;border-radius:50%;flex:none;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;font-size:15px;font-weight:600;
}
.testi-person b{display:block;font-size:14.5px}
.testi-person small{color:var(--ink-3);font-size:12.5px}

/* ============ 列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(91,75,232,.24)}
.news-thumb{display:block;overflow:hidden;background:linear-gradient(135deg,#241B4E,#3E2E7E)}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:18px;transition:transform .28s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.tag{
  display:inline-flex;align-self:flex-start;padding:5px 13px;border-radius:999px;
  background:rgba(91,75,232,.09);color:var(--primary);font-size:12px;font-weight:600;margin-bottom:12px;
}
.news-title{font-size:17.5px;font-weight:600;line-height:1.55;margin-bottom:10px}
.news-title a{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .22s var(--ease);
}
.news-card:hover .news-title a{color:var(--primary)}
.news-summary{
  color:var(--ink-2);font-size:14px;line-height:1.75;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;flex:1;
}
.news-foot{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:14px}
.news-foot time{font-size:12.5px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.news-arrow{color:var(--primary);font-size:16px;transition:transform .22s var(--ease)}
.news-card:hover .news-arrow{transform:translateX(4px)}
.news-more{text-align:center;margin-top:40px}
.news-empty{
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:56px 24px;text-align:center;box-shadow:var(--shadow-1);
}
.news-empty-icon{
  width:56px;height:56px;border-radius:50%;margin:0 auto 16px;display:grid;place-items:center;
  background:rgba(91,75,232,.09);color:var(--primary);font-size:24px;
}
.news-empty p{color:var(--ink-2);margin-bottom:20px}

/* ============ FAQ ============ */
.faq-list{max-width:860px;margin:0 auto}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:16px;
  margin-bottom:14px;overflow:hidden;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item:hover{border-color:rgba(91,75,232,.3)}
.faq-item[open]{border-color:rgba(91,75,232,.45);box-shadow:var(--shadow-1)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 22px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  width:28px;height:28px;border-radius:50%;flex:none;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--primary);font-size:16px;line-height:1;
  transition:transform .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.faq-icon::before{content:"+"}
.faq-item[open] .faq-icon::before{content:"−"}
.faq-item[open] .faq-icon{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#fff;border-color:transparent;
}
.faq-body{
  background:var(--bg-page);border-radius:16px;margin:0 12px 12px;padding:18px 22px;
  color:var(--ink-2);font-size:15px;line-height:1.85;
}

/* ============ CTA 横幅 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:32px;color:#fff;
  background:linear-gradient(135deg,#120F2C 0%,#3B2A78 100%);
  padding:56px 52px;display:grid;grid-template-columns:1.25fr .75fr;gap:36px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;left:-100px;top:-120px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,195,178,.35),transparent 70%);
}
.cta-band h2{position:relative;z-index:2;font-size:clamp(24px,3vw,32px);font-weight:700;line-height:1.4;margin-bottom:12px;letter-spacing:-.3px}
.cta-band p{position:relative;z-index:2;color:rgba(255,255,255,.78);font-size:15.5px}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-night);color:rgba(255,255,255,.72);margin-top:96px;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px}
.footer-brand strong{color:#fff;font-size:16px}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:320px}
.footer-grid h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px}
.footer-grid a{display:block;font-size:14px;color:rgba(255,255,255,.72);margin-bottom:10px}
.footer-grid a:hover{color:#fff}
.footer-contact li{font-size:14px;margin-bottom:10px;color:rgba(255,255,255,.72)}
.footer-contact li span{color:rgba(255,255,255,.45);display:block;font-size:12.5px}
.footer-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-chips span{
  font-size:12px;padding:5px 12px;border-radius:999px;
  border:1px solid rgba(255,255,255,.16);color:rgba(255,255,255,.66);
}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 28px;display:flex;flex-wrap:wrap;gap:14px;
  align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:#fff}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:18px}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .nav-links a{padding:8px 11px;font-size:14.5px}
  .nav-search{width:190px}
}
@media (max-width:1024px){
  .section{padding:80px 0}
  .hero-inner{gap:40px}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:960px){
  .nav-links,.nav-search,.nav-login{display:none}
  .nav-toggle{display:grid}
  .nav-wrap{gap:14px;height:66px}
  .nav-tools{margin-left:auto}
  .hero{padding:60px 0 56px}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-sub{max-width:none}
  .hero-media-frame img{aspect-ratio:16/10}
  .solution{grid-template-columns:1fr;gap:24px}
  .solution.reverse .solution-media{order:0}
  .cta-band{grid-template-columns:1fr;padding:44px 32px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .section-head{margin-bottom:34px}
  .pain-item{grid-template-columns:72px 1fr;gap:16px;padding:22px 22px}
  .pain-item:nth-child(odd){margin-left:0}
  .pain-num{font-size:32px}
  .news-grid{grid-template-columns:1fr}
  .testi-card{flex:0 0 82%}
  .metrics{padding:40px 24px;border-radius:26px}
  .cta-band{border-radius:26px}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{margin-top:72px;padding-top:52px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .stat-badge{padding:9px 14px}
  .stat-badge b{font-size:19px}
  .metrics-grid{grid-template-columns:1fr 1fr;gap:14px}
  .metric{padding:20px 16px}
  .metric b{font-size:26px}
  .solution{padding:20px}
  .news-body{padding:20px}
  .faq-item summary{font-size:15px;padding:12px 18px}
  .faq-body{margin:0 8px 10px;padding:16px 18px}
  .cta-band{padding:36px 24px}
  .brand-text{font-size:15px}
  .brand-text em{font-size:12.5px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --bg-night:#100E24;
  --bg-page:#F7F6FC;
  --surface:#FFFFFF;
  --primary:#5B4BE8;
  --primary-2:#8C6BFF;
  --accent:#17C3B2;
  --hot:#FF8A3D;
  --ink:#17152E;
  --ink-2:#4C4A66;
  --ink-3:#8B89A3;
  --line:#E7E4F5;
  --danger:#E5484D;
  --grad-brand:linear-gradient(135deg,#120F2C 0%,#241B4E 55%,#3A2A78 100%);
  --grad-line:linear-gradient(90deg,#5B4BE8,#8C6BFF);
  --r-sm:12px;
  --r-md:18px;
  --r-lg:24px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 2px 4px rgba(23,21,46,.04),0 12px 32px rgba(91,75,232,.08);
  --sh-2:0 18px 40px rgba(91,75,232,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-page);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",Inter,system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700}
p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(23,21,46,.08)}
.nav-inner{display:flex;align-items:center;gap:20px;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  display:grid;place-items:center;
  box-shadow:0 8px 18px rgba(91,75,232,.28);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;font-weight:700;letter-spacing:-.2px}
.brand-text span{font-size:11px;color:var(--ink-3);letter-spacing:.4px}
.nav-divider{width:1px;height:24px;background:var(--line);flex-shrink:0}
.nav-links{display:flex;align-items:center;gap:26px;flex:1;min-width:0}
.nav-links a{
  position:relative;font-size:15px;color:var(--ink-2);
  padding:6px 0;white-space:nowrap;
  transition:color .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;width:0;
  background:var(--grad-line);border-radius:2px;
  transition:width .22s var(--ease);
}
.nav-links a:hover{color:var(--primary)}
.nav-links a:hover::after{width:70%}
.nav-links a.active{color:var(--ink);font-weight:600}
.nav-links a.active::after{width:70%}
.nav-tools{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-search{
  position:relative;width:220px;
}
.nav-search svg{
  position:absolute;left:12px;top:50%;transform:translateY(-50%);
  width:16px;height:16px;color:var(--ink-3);
}
.nav-search input{
  width:100%;height:40px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#FBFAFF;
  padding:0 14px 0 36px;font-size:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.nav-search input::placeholder{color:var(--ink-3)}
.nav-search input:focus{
  outline:none;background:#fff;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(91,75,232,.12);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);font-weight:600;font-size:15px;
  padding:0 22px;height:44px;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--hot);color:#fff;box-shadow:0 10px 22px rgba(255,138,61,.28)}
.btn-primary:hover{box-shadow:0 16px 30px rgba(255,138,61,.34);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--ink-2);height:40px;padding:0 8px;font-weight:500}
.btn-ghost:hover{color:var(--primary)}
.btn-outline{border:1px solid var(--line);background:#fff;color:var(--ink)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-soft{background:rgba(91,75,232,.08);color:var(--primary)}
.btn-soft:hover{background:rgba(91,75,232,.14)}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,14,36,.5);
  opacity:0;visibility:hidden;transition:opacity .26s var(--ease),visibility .26s var(--ease);z-index:80;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82%;max-width:340px;
  background:#fff;z-index:90;transform:translateX(100%);
  transition:transform .28s var(--ease);
  padding:22px;overflow-y:auto;
  display:flex;flex-direction:column;gap:18px;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{font-size:22px;line-height:1;color:var(--ink-2);width:36px;height:36px;border-radius:10px}
.drawer-close:hover{background:var(--bg-page)}
.drawer nav{display:flex;flex-direction:column;gap:4px}
.drawer nav a{padding:12px 10px;border-radius:12px;font-size:15px;color:var(--ink-2)}
.drawer nav a:hover{background:var(--bg-page);color:var(--primary)}
.drawer nav a.active{background:rgba(91,75,232,.08);color:var(--primary);font-weight:600}
.drawer .btn{width:100%}
body.no-scroll{overflow:hidden}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.crumb-bar .container{display:flex;align-items:center;gap:8px;min-height:52px;font-size:13px;color:var(--ink-3);flex-wrap:wrap}
.crumb-bar a{color:var(--ink-3)}
.crumb-bar a:hover{color:var(--primary)}
.crumb-bar .sep{color:#C9C6DC}
.crumb-bar .current{color:var(--ink-2);max-width:56ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头 ---------- */
.article-top{background:#fff;border-bottom:1px solid var(--line);padding:44px 0 30px}
.article-kicker{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;
  border-radius:var(--r-pill);background:rgba(23,195,178,.1);color:#0E8E82;
  font-size:13px;font-weight:600;margin-bottom:16px;
}
.article-title{
  font-size:clamp(26px,3.6vw,42px);font-weight:700;letter-spacing:-.5px;
  line-height:1.3;max-width:900px;
}
.article-meta{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  margin-top:20px;font-size:13.5px;color:var(--ink-3);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#D5D2E8}
.article-meta .tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);background:#F1EFFB;color:var(--primary);font-weight:600;font-size:12.5px;
}

/* ---------- 主体布局 ---------- */
.article-main{padding:52px 0 72px}
.article-layout{display:block}
.article-layout.with-aside{
  display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:48px;align-items:start;
}
.reader{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  box-shadow:var(--sh-1);padding:44px 48px;max-width:100%;
}
.article-layout:not(.with-aside) .reader{max-width:860px;margin:0 auto}

/* 正文排版 */
.prose{font-size:17px;line-height:1.9;color:#26243D}
.prose > * + *{margin-top:1.2em}
.prose p{margin:0}
.prose h2{
  font-size:clamp(21px,2.4vw,27px);font-weight:700;color:var(--ink);
  margin-top:2.1em;padding-left:14px;position:relative;letter-spacing:-.3px;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;
  background:var(--grad-line);
}
.prose h3{font-size:20px;font-weight:600;margin-top:1.7em;color:var(--ink)}
.prose a{color:var(--primary);border-bottom:1px solid rgba(91,75,232,.35)}
.prose a:hover{color:#4436C9;border-bottom-color:#4436C9}
.prose ul,.prose ol{padding-left:1.35em}
.prose ul li,.prose ol li{margin:.5em 0;position:relative}
.prose ul li::before{
  content:"";position:absolute;left:-1.05em;top:.75em;width:6px;height:6px;border-radius:50%;
  background:var(--accent);
}
.prose ol{list-style:decimal}
.prose ol li::marker{color:var(--primary);font-weight:700}
.prose blockquote{
  margin:1.6em 0;padding:18px 22px;background:var(--bg-page);
  border-left:4px solid var(--primary);border-radius:0 16px 16px 0;color:var(--ink-2);
}
.prose blockquote p{margin:0}
.prose img{
  border-radius:16px;margin:1.6em auto;box-shadow:var(--sh-1);
}
.prose figure{margin:1.6em 0}
.prose figcaption{
  text-align:center;font-size:13.5px;color:var(--ink-3);margin-top:10px;
}
.prose table{
  width:100%;border-collapse:separate;border-spacing:0;
  border:1px solid var(--line);border-radius:16px;overflow:hidden;
  font-size:15px;margin:1.6em 0;
}
.prose thead th{background:var(--bg-page);font-weight:600;text-align:left}
.prose th,.prose td{padding:12px 16px;border-bottom:1px solid var(--line)}
.prose tbody tr:last-child td{border-bottom:0}
.prose code{
  background:#F1EFFB;color:#4436C9;border-radius:6px;
  padding:2px 6px;font-size:.92em;
}
.prose pre{
  background:var(--bg-night);color:#E9E7FA;border-radius:16px;
  padding:18px 20px;overflow:auto;font-size:14.5px;line-height:1.7;
}
.prose pre code{background:none;color:inherit;padding:0}
.prose hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}

/* 空状态 */
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-xl);
  padding:64px 32px;text-align:center;box-shadow:var(--sh-1);
}
.empty-icon{
  width:64px;height:64px;border-radius:20px;margin:0 auto 18px;
  background:linear-gradient(135deg,#EFEDFC,#E3DEFB);display:grid;place-items:center;
}
.empty-icon svg{width:28px;height:28px;color:var(--primary)}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--ink-2);max-width:44ch;margin:0 auto 22px}

/* 标签与分享 */
.article-footer{margin-top:42px;padding-top:26px;border-top:1px solid var(--line)}
.tag-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tag-row .label{font-size:13.5px;color:var(--ink-3);margin-right:2px}
.chip{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:var(--r-pill);background:#F6F5FD;border:1px solid var(--line);
  font-size:13px;color:var(--ink-2);transition:all .2s var(--ease);
}
.chip:hover{border-color:var(--primary);color:var(--primary);background:#fff;transform:translateY(-2px)}
.share-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:18px}
.share-row .label{font-size:13.5px;color:var(--ink-3)}
.share-btn{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--ink-2);background:#fff;
  transition:all .2s var(--ease);
}
.share-btn:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);box-shadow:var(--sh-1)}
.share-btn svg{width:17px;height:17px}

/* 上一篇 / 下一篇 */
.prevnext{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:28px;
}
.prevnext a{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px 22px;transition:all .22s var(--ease);
}
.prevnext a:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(91,75,232,.35)}
.prevnext .pn-label{font-size:12.5px;color:var(--ink-3);letter-spacing:.4px}
.prevnext .pn-title{font-size:15.5px;font-weight:600;margin-top:6px;color:var(--ink)}
.prevnext .pn-title:hover{color:var(--primary)}

/* 侧栏 */
.aside{position:sticky;top:calc(var(--nav-h) + 20px);display:flex;flex-direction:column;gap:20px}
.aside-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);
}
.aside-card h3{font-size:15px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.aside-card h3::before{
  content:"";width:4px;height:14px;border-radius:4px;background:var(--grad-line);
}
.aside-links{display:flex;flex-direction:column;gap:2px}
.aside-links a{
  padding:9px 10px;border-radius:10px;font-size:14.5px;color:var(--ink-2);
  transition:all .2s var(--ease);
}
.aside-links a:hover{background:var(--bg-page);color:var(--primary);padding-left:14px}
.aside-note{font-size:13.5px;color:var(--ink-3);line-height:1.75}
.aside-cta{
  background:var(--grad-brand);border-radius:var(--r-lg);padding:26px 24px;color:#fff;
  position:relative;overflow:hidden;
}
.aside-cta h3{font-size:17px;margin-bottom:10px;color:#fff}
.aside-cta p{font-size:13.5px;color:rgba(255,255,255,.74);line-height:1.7}
.aside-cta .btn{margin-top:16px;width:100%;height:42px;background:#fff;color:var(--ink)}
.aside-cta .btn:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(0,0,0,.18)}

/* 结尾 CTA */
.cta-band{padding:0 0 88px}
.cta-inner{
  background:var(--grad-brand);border-radius:var(--r-xl);
  padding:52px 56px;color:#fff;position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-inner::after{
  content:"";position:absolute;right:-60px;top:-70px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(140,107,255,.45),transparent 68%);
}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);color:#fff;position:relative}
.cta-inner p{margin-top:12px;color:rgba(255,255,255,.76);max-width:52ch;position:relative}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative}
.cta-actions .btn{height:48px}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(0,0,0,.2)}
.btn-line{border:1px solid rgba(255,255,255,.4);color:#fff}
.btn-line:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.7)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-night);color:rgba(255,255,255,.72);padding:68px 0 0;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:11px}
.footer-brand strong{color:#fff;font-size:16px}
.footer-desc{color:rgba(255,255,255,.62);line-height:1.8;max-width:38ch}
.footer-chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
.footer-chips span{
  font-size:12.5px;color:rgba(255,255,255,.7);
  border:1px solid rgba(255,255,255,.16);border-radius:var(--r-pill);padding:4px 12px;
}
.site-footer .footer-grid > div > a{display:block;color:rgba(255,255,255,.72);padding:6px 0;transition:all .2s var(--ease)}
.site-footer .footer-grid > div > a:hover{color:#fff;padding-left:5px}
.footer-contact li{color:rgba(255,255,255,.72);padding:6px 0}
.footer-contact li span{display:block;font-size:12.5px;color:rgba(255,255,255,.42)}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 30px;display:flex;align-items:center;justify-content:space-between;
  gap:14px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom .links a{color:rgba(255,255,255,.62)}
.footer-bottom .links a:hover{color:#fff}

/* 星点装饰 */
.stars{position:absolute;inset:0;overflow:hidden;pointer-events:none}
.stars i{position:absolute;width:2px;height:2px;border-radius:50%;background:#fff;opacity:.2}

@media (max-width:1200px){
  .article-layout.with-aside{grid-template-columns:minmax(0,1fr) 260px;gap:32px}
  .reader{padding:38px 34px}
}
@media (max-width:1024px){
  .nav-search{width:180px}
  .article-layout.with-aside{grid-template-columns:1fr}
  .aside{position:static;flex-direction:row;flex-wrap:wrap}
  .aside-card,.aside-cta{flex:1 1 300px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:960px){
  .nav-links,.nav-divider,.nav-search{display:none}
  .nav-toggle{display:flex}
  .nav-tools .btn-ghost{display:none}
  .nav-inner{justify-content:space-between}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .article-top{padding:30px 0 24px}
  .article-main{padding:32px 0 48px}
  .reader{padding:26px 20px;border-radius:var(--r-lg)}
  .prose{font-size:16.5px;line-height:1.85}
  .prevnext{grid-template-columns:1fr}
  .cta-inner{padding:34px 26px}
  .cta-band{padding-bottom:56px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .brand-text span{display:none}
  .article-meta{gap:10px;font-size:13px}
  .nav-tools .btn-primary{height:40px;padding:0 16px;font-size:14px}
  .aside{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --bg-night:#100E24;
  --bg-page:#F7F6FC;
  --surface:#FFFFFF;
  --primary:#5B4BE8;
  --primary-2:#8C6BFF;
  --accent:#17C3B2;
  --hot:#FF8A3D;
  --ink:#17152E;
  --ink-2:#4C4A66;
  --ink-3:#8B89A3;
  --line:#E7E4F5;
  --danger:#E5484D;
  --r-card:24px;
  --r-big:28px;
  --r-img:18px;
  --r-input:12px;
  --r-pill:999px;
  --shadow-1:0 2px 4px rgba(23,21,46,.04),0 12px 32px rgba(91,75,232,.08);
  --shadow-2:0 18px 40px rgba(91,75,232,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",Inter,"Helvetica Neue",Arial,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:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.32;letter-spacing:-.3px;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1440px){.container{max-width:1280px;}}

.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-dark{background:var(--bg-night);color:#fff;}
@media (max-width:1024px){
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .section-tight{padding:44px 0;}
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.scrolled{box-shadow:0 8px 26px rgba(23,21,46,.07);}
.nav-inner{display:flex;align-items:center;gap:18px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  display:grid;place-items:center;
  box-shadow:0 6px 16px rgba(91,75,232,.3);
}
.brand-mark svg{width:19px;height:19px;}
.brand-text{font-size:15.5px;font-weight:700;color:var(--ink);letter-spacing:-.2px;white-space:nowrap;}
.nav-sep{width:1px;height:24px;background:var(--line);flex:0 0 auto;}
.nav-links{display:flex;align-items:center;gap:2px;flex:1 1 auto;min-width:0;}
.nav-links a{
  position:relative;
  padding:8px 12px;
  font-size:14.5px;
  color:var(--ink-2);
  border-radius:10px;
  white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links a:hover{color:var(--primary);background:rgba(91,75,232,.06);}
.nav-links a.active{color:var(--ink);font-weight:600;}
.nav-links a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{position:relative;width:200px;}
.nav-search input{
  width:100%;height:40px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;
  padding:0 14px 0 38px;font-size:13.5px;color:var(--ink);
  outline:none;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search input::placeholder{color:var(--ink-3);}
.nav-search input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(91,75,232,.12);}
.nav-search svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);width:16px;height:16px;stroke:var(--ink-3);fill:none;stroke-width:1.8;pointer-events:none;}
.btn-text{font-size:14.5px;color:var(--ink-2);padding:6px 4px;transition:color .2s var(--ease);white-space:nowrap;}
.btn-text:hover{color:var(--primary);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn svg{width:16px;height:16px;flex:0 0 auto;}
.btn:active{transform:scale(.98);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:var(--r-pill);}
.btn-primary{background:var(--hot);color:#fff;box-shadow:0 10px 24px rgba(255,138,61,.32);}
.btn-primary:hover{box-shadow:0 14px 30px rgba(255,138,61,.42);transform:translateY(-2px);}
.btn-grad{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 10px 24px rgba(91,75,232,.3);}
.btn-grad:hover{box-shadow:0 14px 30px rgba(91,75,232,.4);transform:translateY(-2px);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--primary);box-shadow:0 12px 28px rgba(16,14,36,.22);}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 18px 36px rgba(16,14,36,.28);}
.btn-outline-light{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.34);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.18);border-color:rgba(255,255,255,.6);}
.btn[disabled]{opacity:.4;cursor:not-allowed;box-shadow:none;transform:none;}

.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle svg{width:20px;height:20px;stroke:var(--ink);fill:none;stroke-width:1.9;stroke-linecap:round;}
.nav-toggle:hover{border-color:var(--primary);}
.nav-toggle:hover svg{stroke:var(--primary);}

.drawer{
  position:fixed;top:0;right:0;height:100%;width:82%;max-width:340px;
  background:#fff;z-index:90;padding:22px 22px 32px;
  transform:translateX(100%);transition:transform .3s var(--ease);
  overflow-y:auto;box-shadow:-16px 0 40px rgba(16,14,36,.16);
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{width:38px;height:38px;border-radius:11px;border:1px solid var(--line);background:#fff;cursor:pointer;display:grid;place-items:center;}
.drawer-close svg{width:18px;height:18px;stroke:var(--ink-2);stroke-width:1.9;fill:none;stroke-linecap:round;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px;}
.drawer-nav a{padding:13px 14px;border-radius:14px;font-size:15.5px;color:var(--ink-2);transition:background .2s var(--ease),color .2s var(--ease);}
.drawer-nav a:hover{background:rgba(91,75,232,.07);color:var(--primary);}
.drawer-nav a.active{background:rgba(91,75,232,.1);color:var(--primary);font-weight:600;}
.drawer-search{position:relative;margin-bottom:16px;}
.drawer-search input{width:100%;height:44px;border-radius:var(--r-pill);border:1px solid var(--line);padding:0 16px 0 40px;font-size:14px;outline:none;}
.drawer-search input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(91,75,232,.12);}
.drawer-search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:16px;height:16px;stroke:var(--ink-3);fill:none;stroke-width:1.8;}
.drawer .btn{width:100%;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,14,36,.5);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);
}
.drawer-mask.open{opacity:1;visibility:visible;}

@media (max-width:1180px){
  .nav-search{width:160px;}
  .nav-links a{padding:8px 9px;font-size:14px;}
}
@media (max-width:1024px){
  .brand-text{font-size:14.5px;}
  .nav-search{display:none;}
}
@media (max-width:960px){
  .nav-links,.nav-sep,.btn-text,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-inner{height:66px;}
  .nav-right{margin-left:auto;}
}
@media (max-width:520px){
  .brand-text{font-size:13.5px;}
  .brand-mark{width:30px;height:30px;border-radius:10px;}
  .brand-mark svg{width:17px;height:17px;}
}

/* ---------- 分类页 Hero ---------- */
.page-hero{
  position:relative;isolation:isolate;overflow:hidden;
  padding:34px 0 60px;
  background:linear-gradient(135deg,#120F2C 0%,#1A1440 55%,#241B4E 100%);
  color:#fff;
}
.page-hero-bg{
  position:absolute;inset:0;z-index:-2;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;opacity:.26;
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(900px 380px at 80% 8%,rgba(140,107,255,.38),transparent 62%),
    radial-gradient(620px 320px at 6% 96%,rgba(23,195,178,.2),transparent 62%);
}
.page-hero .stars{
  position:absolute;inset:0;z-index:-1;pointer-events:none;opacity:.22;
  background-image:
    radial-gradient(circle at 6% 24%,#fff 0 1.5px,transparent 2px),
    radial-gradient(circle at 15% 72%,#fff 0 1.2px,transparent 2px),
    radial-gradient(circle at 24% 38%,#fff 0 1px,transparent 2px),
    radial-gradient(circle at 33% 84%,#fff 0 1.5px,transparent 2px),
    radial-gradient(circle at 41% 18%,#fff 0 1px,transparent 2px),
    radial-gradient(circle at 49% 60%,#fff 0 1.2px,transparent 2px),
    radial-gradient(circle at 58% 30%,#fff 0 1.5px,transparent 2px),
    radial-gradient(circle at 66% 78%,#fff 0 1px,transparent 2px),
    radial-gradient(circle at 73% 46%,#fff 0 1.2px,transparent 2px),
    radial-gradient(circle at 81% 20%,#fff 0 1.5px,transparent 2px),
    radial-gradient(circle at 88% 66%,#fff 0 1px,transparent 2px),
    radial-gradient(circle at 94% 34%,#fff 0 1.2px,transparent 2px),
    radial-gradient(circle at 12% 50%,#fff 0 1px,transparent 2px),
    radial-gradient(circle at 62% 12%,#fff 0 1px,transparent 2px);
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:rgba(255,255,255,.62);margin-bottom:18px;
}
.breadcrumb a{color:rgba(255,255,255,.78);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{opacity:.5;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
  font-size:12.5px;letter-spacing:.4px;color:rgba(255,255,255,.86);
  margin-bottom:16px;
}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block;}
.hero-h1{font-size:clamp(30px,4vw,44px);letter-spacing:-.5px;margin-bottom:16px;}
.hero-sub{
  max-width:640px;font-size:16.5px;line-height:1.75;
  color:rgba(255,255,255,.78);margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
@media (max-width:768px){
  .page-hero{padding:26px 0 48px;}
  .hero-sub{font-size:15.5px;}
}

/* ---------- 通用板块头 ---------- */
.section-head{max-width:760px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:var(--r-pill);
  background:rgba(91,75,232,.08);color:var(--primary);
  font-size:13px;font-weight:600;margin-bottom:16px;
}
.section-title{font-size:clamp(24px,3vw,34px);}
.section-title::before{
  content:"";display:inline-block;width:4px;height:.86em;border-radius:2px;
  margin-right:12px;vertical-align:-.08em;
  background:linear-gradient(180deg,var(--primary),var(--primary-2));
}
.section-sub{margin-top:14px;color:var(--ink-2);font-size:16px;}
.section-dark .section-title{color:#fff;}
.section-dark .section-sub{color:rgba(255,255,255,.7);}
.section-dark .eyebrow{background:rgba(255,255,255,.1);color:rgba(255,255,255,.88);}
@media (max-width:768px){
  .section-head{margin-bottom:32px;}
}

/* ---------- 图文分栏 ---------- */
.split{display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center;}
.split-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-big);box-shadow:var(--shadow-1);
}
.split h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:18px;}
.split p{color:var(--ink-2);}
.lead{font-size:16.5px;color:var(--ink-2);}
.inline-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.inline-tags span{
  padding:6px 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  font-size:13.5px;color:var(--ink-2);
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.inline-tags span:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
@media (max-width:960px){
  .split{grid-template-columns:1fr;gap:32px;}
  .split-media{order:-1;}
}

/* ---------- 要点列表 ---------- */
.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;list-style:none;}
.feature-list li{
  display:flex;gap:16px;padding:26px 24px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.feature-list li:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(91,75,232,.24);}
.fl-icon{
  flex:0 0 auto;width:42px;height:42px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(91,75,232,.12),rgba(140,107,255,.2));
  color:var(--primary);
}
.fl-icon svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.feature-list h3{font-size:17px;margin-bottom:6px;}
.feature-list p{font-size:14.5px;color:var(--ink-2);line-height:1.75;margin:0;}
@media (max-width:768px){
  .feature-list{grid-template-columns:1fr;gap:16px;}
  .feature-list li{padding:20px;}
}

/* ---------- 交替图文 ---------- */
.media-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.media-row + .media-row{margin-top:80px;}
.media-row-media{order:2;}
.media-row-text{order:1;}
.media-row.reverse .media-row-media{order:1;}
.media-row.reverse .media-row-text{order:2;}
.media-row-media img{
  width:100%;aspect-ratio:5/4;object-fit:cover;
  border-radius:var(--r-big);box-shadow:var(--shadow-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.media-row-media:hover img{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.media-row-text h3{font-size:clamp(20px,2.3vw,26px);margin-bottom:16px;}
.media-row-text p{color:var(--ink-2);}
.check-list{list-style:none;margin-top:20px;display:grid;gap:12px;}
.check-list li{position:relative;padding-left:30px;font-size:15px;color:var(--ink-2);}
.check-list li::before{
  content:"";position:absolute;left:0;top:.6em;width:16px;height:16px;border-radius:50%;
  background:rgba(23,195,178,.14);
}
.check-list li::after{
  content:"";position:absolute;left:5px;top:calc(.6em + 4px);width:6px;height:9px;
  border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);
  transform:rotate(40deg);
}
@media (max-width:960px){
  .media-row{grid-template-columns:1fr;gap:28px;}
  .media-row + .media-row{margin-top:56px;}
  .media-row-media{order:1 !important;}
  .media-row-text{order:2 !important;}
}

/* ---------- 步骤条 ---------- */
.steps{display:grid;gap:16px;}
.step{
  display:flex;gap:20px;align-items:flex-start;
  padding:24px 26px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(91,75,232,.22);}
.step-num{
  flex:0 0 auto;width:48px;height:48px;border-radius:15px;
  display:grid;place-items:center;
  font-size:16px;font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;
  background:linear-gradient(135deg,rgba(91,75,232,.12),rgba(140,107,255,.22));
}
.step h3{font-size:17px;margin-bottom:6px;}
.step p{font-size:14.5px;color:var(--ink-2);margin:0;line-height:1.75;}
@media (max-width:520px){
  .step{flex-direction:column;gap:14px;padding:20px;}
}

/* ---------- 数据徽章带 ---------- */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat{
  padding:26px 24px;border-radius:var(--r-card);
  border:1px solid rgba(255,255,255,.13);
  background:linear-gradient(140deg,rgba(91,75,232,.24),rgba(23,195,178,.07));
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.stat:hover{transform:translateY(-4px);border-color:rgba(140,107,255,.5);}
.stat-num{
  display:flex;align-items:baseline;gap:6px;
  font-size:34px;font-weight:700;color:#fff;
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.stat-num small{font-size:14px;font-weight:600;color:rgba(255,255,255,.72);letter-spacing:0;}
.stat-label{margin-top:8px;font-size:14px;color:rgba(255,255,255,.7);}
@media (max-width:960px){.stats-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:520px){.stats-grid{grid-template-columns:1fr;}}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:840px;margin:0 auto;display:grid;gap:14px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);
  border-radius:16px;overflow:hidden;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);
  list-style:none;transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:grid;place-items:center;
  color:var(--primary);font-size:15px;line-height:1;
}
.faq-icon::before{content:"+";}
.faq-item[open] .faq-icon::before{content:"−";}
.faq-item[open]{background:var(--bg-page);border-color:rgba(91,75,232,.28);}
.faq-item[open] summary{color:var(--primary);}
.faq-a{padding:0 20px 20px;font-size:15px;color:var(--ink-2);line-height:1.85;}
.faq-a p{margin:0;}

/* ---------- CTA 横幅 ---------- */
.cta-band{
  position:relative;overflow:hidden;isolation:isolate;
  border-radius:var(--r-big);padding:56px;
  background:linear-gradient(120deg,#31257C 0%,#5B4BE8 52%,#8C6BFF 100%);
  color:#fff;box-shadow:0 24px 56px rgba(91,75,232,.28);
}
.cta-band::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(520px 240px at 88% 6%,rgba(23,195,178,.32),transparent 60%),
    radial-gradient(420px 220px at 4% 96%,rgba(255,255,255,.16),transparent 62%);
}
.cta-band h2{font-size:clamp(22px,2.8vw,32px);margin-bottom:14px;}
.cta-band p{max-width:560px;color:rgba(255,255,255,.82);margin-bottom:28px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
@media (max-width:768px){
  .cta-band{padding:36px 24px;border-radius:22px;}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-night);color:rgba(255,255,255,.72);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.25fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px;margin-bottom:14px;}
.footer-brand .brand-mark{width:32px;height:32px;border-radius:10px;box-shadow:none;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);max-width:340px;margin:0;}
.footer-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.footer-chips span{
  padding:4px 12px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.18);
  font-size:12.5px;color:rgba(255,255,255,.8);
}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:14px;letter-spacing:0;}
.site-footer a{display:block;color:rgba(255,255,255,.72);font-size:14px;padding:6px 0;transition:color .2s var(--ease);}
.site-footer a:hover{color:#fff;}
.footer-contact{list-style:none;padding:0;margin:0;}
.footer-contact li{font-size:14px;padding:6px 0;color:rgba(255,255,255,.72);}
.footer-contact li span{display:block;color:rgba(255,255,255,.45);font-size:12.5px;margin-bottom:2px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
  padding:20px 0;border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-bottom .links a{display:inline;padding:0;font-size:13px;color:rgba(255,255,255,.6);}
.footer-bottom .links a:hover{color:#fff;}
@media (max-width:960px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding-bottom:36px;}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding-top:48px;}
}

@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --bg-night:#100E24;
  --bg-hero-a:#120F2C;
  --bg-hero-b:#241B4E;
  --bg-page:#F7F6FC;
  --surface:#FFFFFF;
  --primary:#5B4BE8;
  --primary-2:#8C6BFF;
  --accent:#17C3B2;
  --hot:#FF8A3D;
  --ink:#17152E;
  --ink-2:#4C4A66;
  --ink-3:#8B89A3;
  --line:#E7E4F5;
  --danger:#E5484D;
  --r-card:24px;
  --r-big:28px;
  --r-img:18px;
  --sh:0 2px 4px rgba(23,21,46,.04), 0 12px 32px rgba(91,75,232,.08);
  --sh-hover:0 18px 40px rgba(91,75,232,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",Inter,Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
p + p{margin-top:1.2em}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1440px){
  :root{--container:1280px}
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(23,21,46,.08)}
.header-inner{
  display:flex;
  align-items:center;
  gap:18px;
  height:74px;
}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:36px;height:36px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  display:grid;place-items:center;
  box-shadow:0 8px 18px rgba(91,75,232,.28);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:-.3px}
.brand-text span{font-size:11px;color:var(--ink-3);letter-spacing:.03em}
.header-divider{width:1px;height:26px;background:var(--line);flex:none}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-links a{
  position:relative;
  padding:9px 13px;
  font-size:15px;
  color:var(--ink-2);
  border-radius:10px;
  transition:color .2s var(--ease),background .2s var(--ease);
  white-space:nowrap;
}
.nav-links a:hover{color:var(--primary);background:rgba(91,75,232,.06)}
.nav-links a.active{color:var(--ink);font-weight:600}
.nav-links a.active::after{
  content:"";
  position:absolute;
  left:50%;transform:translateX(-50%);
  bottom:1px;width:70%;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:224px;height:40px;padding:0 14px;
  background:var(--bg-page);
  border:1px solid var(--line);
  border-radius:999px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-box svg{width:16px;height:16px;flex:none;color:var(--ink-3)}
.search-box input{
  width:100%;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--ink);
}
.search-box input::placeholder{color:var(--ink-3)}
.search-box:focus-within{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(91,75,232,.12);
}
.btn-text{
  font-size:14px;color:var(--ink-2);padding:8px 6px;
  transition:color .2s var(--ease);
}
.btn-text:hover{color:var(--primary)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;
  border-radius:999px;
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn svg{width:16px;height:16px}
.btn:active{transform:scale(.98)}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#fff;
  box-shadow:0 10px 24px rgba(91,75,232,.26);
}
.btn-primary:hover{box-shadow:0 18px 40px rgba(91,75,232,.34);transform:translateY(-2px)}
.btn-hot{
  background:linear-gradient(135deg,#FF9A52,var(--hot));
  color:#fff;
  box-shadow:0 12px 26px rgba(255,138,61,.3);
}
.btn-hot:hover{box-shadow:0 18px 40px rgba(255,138,61,.36);transform:translateY(-2px)}
.btn-ghost{
  background:#fff;border-color:var(--line);color:var(--ink);
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn-outline-light{
  background:rgba(255,255,255,.06);
  border-color:rgba(255,255,255,.34);
  color:#fff;
}
.btn-outline-light:hover{background:rgba(255,255,255,.14)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.menu-toggle{
  display:none;
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);
  align-items:center;justify-content:center;
  color:var(--ink);
}
.menu-toggle svg{width:20px;height:20px}

/* Drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,14,36,.5);
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
  z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82%;max-width:340px;
  background:#fff;z-index:100;
  transform:translateX(100%);
  transition:transform .28s var(--ease);
  padding:22px 20px 32px;
  display:flex;flex-direction:column;gap:18px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-title{font-weight:700;font-size:16px}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  display:grid;place-items:center;font-size:18px;color:var(--ink-2);
}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav a{
  padding:12px 14px;border-radius:14px;font-size:15px;color:var(--ink-2);
  border:1px solid transparent;
}
.drawer-nav a.active{
  background:rgba(91,75,232,.08);color:var(--primary);font-weight:600;
  border-color:rgba(91,75,232,.16);
}
.drawer-search{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;
  border:1px solid var(--line);border-radius:12px;background:var(--bg-page);
}
.drawer-search input{width:100%;border:0;background:transparent;outline:none;font-size:14px}
.drawer-search svg{width:16px;height:16px;color:var(--ink-3);flex:none}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  background:linear-gradient(135deg,var(--bg-hero-a) 0%,var(--bg-hero-b) 100%);
  color:#fff;
  padding:52px 0 60px;
}
.hero::before{
  content:"";
  position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.6px 1.6px at 8% 24%, rgba(255,255,255,.22), transparent 62%),
    radial-gradient(1.4px 1.4px at 18% 72%, rgba(255,255,255,.18), transparent 62%),
    radial-gradient(1.8px 1.8px at 32% 18%, rgba(255,255,255,.2), transparent 62%),
    radial-gradient(1.4px 1.4px at 46% 82%, rgba(255,255,255,.18), transparent 62%),
    radial-gradient(1.6px 1.6px at 61% 30%, rgba(255,255,255,.22), transparent 62%),
    radial-gradient(1.4px 1.4px at 74% 68%, rgba(255,255,255,.18), transparent 62%),
    radial-gradient(1.8px 1.8px at 86% 22%, rgba(255,255,255,.2), transparent 62%),
    radial-gradient(1.4px 1.4px at 94% 58%, rgba(255,255,255,.18), transparent 62%);
}
.hero::after{
  content:"";
  position:absolute;
  right:-120px;top:-140px;width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(140,107,255,.38),transparent 68%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:820px}
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.6);
  margin-bottom:16px;
}
.breadcrumb a{color:rgba(255,255,255,.7);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:#fff}
.breadcrumb span{color:rgba(255,255,255,.45)}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:999px;
  font-size:12.5px;letter-spacing:.02em;
  background:rgba(140,107,255,.18);
  border:1px solid rgba(140,107,255,.36);
  color:#DCD4FF;
  margin-bottom:18px;
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block}
.hero h1{
  font-size:clamp(30px,4.2vw,46px);
  font-weight:700;
  line-height:1.24;
  letter-spacing:-.5px;
  margin:0 0 16px;
}
.hero-sub{
  font-size:17px;
  line-height:1.75;
  color:rgba(255,255,255,.78);
  max-width:660px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;
}
.hero-facts span{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;
  font-size:13px;color:rgba(255,255,255,.82);
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.05);
}
.hero-facts span b{color:#fff;font-weight:700;font-variant-numeric:tabular-nums}

/* ---------- Sections ---------- */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--primary);
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";width:18px;height:4px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
}
.section-head h2{
  font-size:clamp(24px,3vw,34px);
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.4px;
  margin-bottom:14px;
}
.section-head p{color:var(--ink-2);font-size:16.5px}
.surface{background:var(--surface)}

/* Intro */
.intro-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:48px;
  align-items:center;
}
.intro-copy h2{
  font-size:clamp(24px,3vw,34px);
  font-weight:700;letter-spacing:-.4px;line-height:1.32;
  margin-bottom:18px;
}
.intro-copy p{color:var(--ink-2)}
.intro-list{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.intro-list li{display:flex;gap:12px;align-items:flex-start;color:var(--ink-2);font-size:15.5px}
.intro-list svg{width:20px;height:20px;flex:none;margin-top:4px;color:var(--accent)}
.intro-figure{position:relative}
.intro-figure img{
  width:100%;border-radius:var(--r-big);
  box-shadow:var(--sh);
  aspect-ratio:4/3;object-fit:cover;
}
.intro-figure::after{
  content:"";
  position:absolute;left:-16px;bottom:-16px;
  width:120px;height:120px;border-radius:28px;
  background:linear-gradient(135deg,rgba(91,75,232,.14),rgba(23,195,178,.14));
  z-index:-1;
}
.intro-note{
  margin-top:22px;
  padding:16px 20px;
  border-left:4px solid var(--primary);
  background:rgba(91,75,232,.05);
  border-radius:0 16px 16px 0;
  color:var(--ink-2);font-size:15px;
}

/* Points */
.points-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.point{
  display:flex;gap:16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--sh);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.point:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.point-icon{
  width:46px;height:46px;flex:none;border-radius:14px;
  display:grid;place-items:center;
  background:rgba(91,75,232,.09);
  color:var(--primary);
}
.point-icon svg{width:22px;height:22px}
.point h3{font-size:17px;font-weight:600;margin-bottom:6px}
.point p{font-size:14.5px;color:var(--ink-2);line-height:1.75}

/* Compare */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-big);
  padding:34px 32px;
  box-shadow:var(--sh);
  display:flex;flex-direction:column;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.compare-card .tag{
  align-self:flex-start;
  display:inline-flex;align-items:center;
  height:28px;padding:0 13px;border-radius:999px;
  font-size:12.5px;font-weight:600;
  background:rgba(91,75,232,.08);color:var(--primary);
  margin-bottom:18px;
}
.compare-card h3{font-size:21px;font-weight:700;margin-bottom:10px;letter-spacing:-.3px}
.compare-card .lead{color:var(--ink-2);font-size:15.5px;margin-bottom:22px}
.compare-list{display:flex;flex-direction:column;gap:13px;margin-bottom:26px}
.compare-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-2)}
.compare-list svg{width:18px;height:18px;flex:none;margin-top:5px;color:var(--accent)}
.compare-card.is-dark{
  background:linear-gradient(160deg,#16123A 0%,#2A2059 100%);
  color:#fff;border-color:transparent;
}
.compare-card.is-dark .tag{background:rgba(255,255,255,.14);color:#fff}
.compare-card.is-dark .lead,
.compare-card.is-dark .compare-list li{color:rgba(255,255,255,.76)}
.compare-card.is-dark .compare-list svg{color:var(--accent)}
.compare-foot{margin-top:auto}

/* Stats band */
.stats-band{
  background:var(--bg-night);
  border-radius:var(--r-big);
  padding:48px 40px;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.stats-band::before{
  content:"";
  position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.5px 1.5px at 14% 30%, rgba(255,255,255,.2), transparent 62%),
    radial-gradient(1.5px 1.5px at 42% 74%, rgba(255,255,255,.16), transparent 62%),
    radial-gradient(1.5px 1.5px at 68% 26%, rgba(255,255,255,.2), transparent 62%),
    radial-gradient(1.5px 1.5px at 88% 64%, rgba(255,255,255,.16), transparent 62%);
}
.stats-head{position:relative;z-index:2;margin-bottom:32px;max-width:620px}
.stats-head h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;letter-spacing:-.3px;margin-bottom:10px}
.stats-head p{color:rgba(255,255,255,.66);font-size:15.5px}
.stats-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.stat{
  padding:24px 24px 22px;
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-card);
  background:rgba(255,255,255,.04);
  transition:border-color .22s var(--ease),background .22s var(--ease),transform .22s var(--ease);
}
.stat:hover{border-color:rgba(140,107,255,.6);background:rgba(140,107,255,.12);transform:translateY(-4px)}
.stat-badge{
  display:inline-flex;align-items:center;
  height:24px;padding:0 11px;border-radius:999px;
  font-size:11.5px;letter-spacing:.03em;
  border:1px solid rgba(140,107,255,.5);
  color:#CDC2FF;margin-bottom:16px;
}
.stat-num{
  font-size:clamp(30px,3.4vw,40px);
  font-weight:700;line-height:1;
  font-variant-numeric:tabular-nums;
  letter-spacing:-1px;
}
.stat-num small{font-size:15px;font-weight:600;margin-left:6px;color:rgba(255,255,255,.7);letter-spacing:0}
.stat p{margin-top:12px;font-size:14px;color:rgba(255,255,255,.66);line-height:1.7}

/* Channel cards */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.channel-card{
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-big);
  overflow:hidden;
  box-shadow:var(--sh);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.channel-media{overflow:hidden;position:relative}
.channel-media img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  transition:transform .28s var(--ease);
}
.channel-card:hover .channel-media img{transform:scale(1.03)}
.channel-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(16,14,36,0) 45%,rgba(16,14,36,.42));
}
.channel-body{padding:24px;display:flex;flex-direction:column;flex:1}
.channel-body .tag{
  align-self:flex-start;
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(23,195,178,.12);color:#0E8F82;
  margin-bottom:14px;
}
.channel-body h3{font-size:19px;font-weight:700;margin-bottom:10px;letter-spacing:-.2px}
.channel-body p{font-size:14.5px;color:var(--ink-2);line-height:1.75}
.channel-link{
  margin-top:20px;display:inline-flex;align-items:center;gap:7px;
  font-size:14px;font-weight:600;color:var(--primary);
}
.channel-link svg{width:15px;height:15px;transition:transform .22s var(--ease)}
.channel-card:hover .channel-link svg{transform:translateX(4px)}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:8px}
.step{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 24px;
  box-shadow:var(--sh);
}
.step-num{
  font-size:26px;font-weight:700;color:rgba(91,75,232,.26);
  font-variant-numeric:tabular-nums;letter-spacing:-1px;
  margin-bottom:12px;display:block;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--ink-2)}

/* FAQ */
.faq{max-width:900px;margin:0 auto}
.faq details{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:16px;
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.faq details:hover{border-color:rgba(91,75,232,.28)}
.faq details[open]{background:var(--bg-page)}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 24px;
  font-size:16px;font-weight:600;
  cursor:pointer;list-style:none;
}
.faq summary::-webkit-details-marker{display:none}
.faq-icon{
  width:28px;height:28px;flex:none;border-radius:50%;
  border:1px solid var(--line);
  display:grid;place-items:center;
  color:var(--primary);font-size:16px;line-height:1;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.faq details[open] .faq-icon{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  border-color:transparent;color:#fff;
}
.faq-icon span::before{content:"+"}
.faq details[open] .faq-icon span::before{content:"−"}
.faq-body{
  padding:0 24px 22px;
  color:var(--ink-2);font-size:15.5px;line-height:1.85;
}

/* CTA band */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-big);
  padding:56px 52px;
  background:linear-gradient(120deg,#120F2C 0%,#33256F 55%,#5B4BE8 100%);
  color:#fff;
  display:grid;grid-template-columns:1.5fr 1fr;gap:32px;align-items:center;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.6px 1.6px at 12% 34%, rgba(255,255,255,.22), transparent 62%),
    radial-gradient(1.6px 1.6px at 38% 76%, rgba(255,255,255,.18), transparent 62%),
    radial-gradient(1.6px 1.6px at 66% 30%, rgba(255,255,255,.2), transparent 62%),
    radial-gradient(1.6px 1.6px at 88% 70%, rgba(255,255,255,.18), transparent 62%);
}
.cta-copy{position:relative;z-index:2}
.cta-copy h2{
  font-size:clamp(24px,2.8vw,32px);font-weight:700;
  letter-spacing:-.4px;line-height:1.32;margin-bottom:14px;
}
.cta-copy p{color:rgba(255,255,255,.78);font-size:16px;max-width:560px}
.cta-actions{
  position:relative;z-index:2;
  display:flex;flex-direction:column;gap:14px;
}
.cta-hint{font-size:13px;color:rgba(255,255,255,.6)}

/* Footer */
.site-footer{
  background:var(--bg-night);
  color:rgba(255,255,255,.72);
  padding:72px 0 0;
  margin-top:96px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:11px}
.footer-brand strong{color:#fff;font-size:17px;font-weight:700;letter-spacing:-.2px}
.footer-desc{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px}
.footer-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-chips span{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;color:rgba(255,255,255,.74);
  border:1px solid rgba(255,255,255,.16);
}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px}
.site-footer .footer-grid > div > a{
  display:block;font-size:14.5px;color:rgba(255,255,255,.72);
  padding:6px 0;
  transition:color .2s var(--ease);
}
.site-footer .footer-grid > div > a:hover{color:#fff}
.footer-contact li{
  font-size:14.5px;color:rgba(255,255,255,.72);
  padding:6px 0;
}
.footer-contact li span{
  display:block;font-size:12.5px;color:rgba(255,255,255,.44);margin-bottom:2px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;
  display:flex;flex-wrap:wrap;gap:14px;
  align-items:center;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.56);
}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:20px}
.footer-bottom .links a{color:rgba(255,255,255,.7);transition:color .2s var(--ease)}
.footer-bottom .links a:hover{color:#fff}

/* Responsive */
@media (max-width:1200px){
  .search-box{width:190px}
}
@media (max-width:1024px){
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .intro-grid{grid-template-columns:1fr;gap:36px}
  .intro-figure::after{display:none}
  .compare-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .channel-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{grid-template-columns:1fr;padding:44px 36px}
  .cta-actions{flex-direction:row;flex-wrap:wrap;align-items:center}
}
@media (max-width:960px){
  .nav-links,.header-divider,.header-actions{display:none}
  .menu-toggle{display:inline-flex;margin-left:auto}
  .header-inner{height:66px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .hero{padding:38px 0 44px}
  .hero-sub{font-size:16px}
  .points-grid{grid-template-columns:1fr}
  .channel-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .point,.compare-card,.channel-body{padding:20px}
  .stats-band{padding:32px 22px}
  .stats-grid{gap:14px}
  .stat{padding:20px 18px}
  .faq summary{padding:14px 18px;font-size:15px}
  .faq-body{padding:0 18px 20px}
  .cta-band{padding:36px 22px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .site-footer{padding-top:56px;margin-top:64px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-desc{max-width:none}
}
@media (max-width:480px){
  .brand-text span{display:none}
  .hero h1{font-size:28px}
  .stats-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .hero-actions{flex-direction:column;align-items:stretch}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: category3 */
:root{
  --bg-night:#100E24;
  --bg-hero-a:#120F2C;
  --bg-hero-b:#241B4E;
  --bg-page:#F7F6FC;
  --surface:#FFFFFF;
  --primary:#5B4BE8;
  --primary-2:#8C6BFF;
  --accent:#17C3B2;
  --hot:#FF8A3D;
  --ink:#17152E;
  --ink-2:#4C4A66;
  --ink-3:#8B89A3;
  --line:#E7E4F5;
  --danger:#E5484D;
  --r-card:24px;
  --r-big:28px;
  --r-img:18px;
  --r-btn:999px;
  --r-input:12px;
  --shadow-1:0 2px 4px rgba(23,21,46,.04), 0 12px 32px rgba(91,75,232,.08);
  --shadow-2:0 18px 40px rgba(91,75,232,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-page);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",Inter,Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:-.4px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
body.no-scroll{overflow:hidden}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.scrolled{box-shadow:0 10px 28px rgba(23,21,46,.09)}
.header-inner{display:flex;align-items:center;gap:20px;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  display:grid;place-items:center;
  box-shadow:0 6px 16px rgba(91,75,232,.32);
}
.brand-mark svg{width:18px;height:18px}
.brand-text{font-size:16px;font-weight:700;color:var(--ink);white-space:nowrap;letter-spacing:-.2px}
.nav-links{
  display:flex;align-items:center;gap:22px;height:var(--nav-h);
  border-left:1px solid var(--line);padding-left:22px;margin-left:2px;
}
.nav-links a{
  position:relative;display:flex;align-items:center;height:100%;
  font-size:15px;font-weight:500;color:var(--ink-2);
  transition:color .2s var(--ease);white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:18px;height:2px;width:0;
  transform:translateX(-50%);
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
  border-radius:2px;transition:width .24s var(--ease);
}
.nav-links a:hover{color:var(--primary)}
.nav-links a:hover::after{width:70%}
.nav-links a.active{color:var(--ink);font-weight:600}
.nav-links a.active::after{width:70%}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{position:relative}
.search-box svg{
  position:absolute;left:14px;top:50%;transform:translateY(-50%);
  width:15px;height:15px;stroke:var(--ink-3);fill:none;stroke-width:2;
}
.search-box input{
  width:230px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;
  padding:0 16px 0 38px;font-size:14px;color:var(--ink);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-box input::placeholder{color:var(--ink-3)}
.search-box input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(91,75,232,.12)}
.text-link{
  font-size:14px;font-weight:600;color:var(--ink-2);
  padding:8px 4px;border-radius:8px;transition:color .2s var(--ease);
  white-space:nowrap;
}
.text-link:hover{color:var(--primary)}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;
  cursor:pointer;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn:active{transform:scale(.98)}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#fff;box-shadow:0 10px 24px rgba(91,75,232,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-outline{border-color:var(--line);background:#fff;color:var(--ink)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-1)}
.btn-light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.34);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.22);transform:translateY(-2px)}
.btn-hot{background:linear-gradient(135deg,var(--hot),#FF6F2C);color:#fff;box-shadow:0 10px 24px rgba(255,138,61,.3)}
.btn-hot:hover{transform:translateY(-2px);box-shadow:0 18px 40px rgba(255,138,61,.28)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-arrow{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}

/* ============ Menu toggle & drawer ============ */
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;cursor:pointer;
  place-items:center;margin-left:auto;padding:0;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,14,36,.5);
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s;z-index:80;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82%;max-width:360px;
  background:#fff;z-index:90;transform:translateX(102%);
  transition:transform .3s var(--ease);
  display:flex;flex-direction:column;padding:22px;gap:22px;overflow-y:auto;
  box-shadow:-16px 0 40px rgba(23,21,46,.18);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{
  width:38px;height:38px;border-radius:12px;border:1px solid var(--line);
  background:#fff;cursor:pointer;color:var(--ink-2);font-size:18px;line-height:1;
}
.drawer-links{display:flex;flex-direction:column;gap:6px}
.drawer-links a{
  padding:12px 14px;border-radius:14px;font-size:15px;font-weight:500;color:var(--ink-2);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.drawer-links a:hover{background:rgba(91,75,232,.07);color:var(--primary)}
.drawer-links a.active{background:rgba(91,75,232,.1);color:var(--primary);font-weight:600}
.drawer-search input{
  width:100%;height:44px;border-radius:var(--r-input);border:1px solid var(--line);
  padding:0 14px;background:#fff;
}
.drawer-search input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(91,75,232,.12)}
.drawer-actions{display:flex;flex-direction:column;gap:10px;margin-top:auto}

/* ============ Compact Hero ============ */
.hero-compact{
  position:relative;overflow:hidden;color:#fff;
  padding:52px 0 58px;
  background-color:var(--bg-hero-a);
  background-image:
    linear-gradient(115deg,rgba(18,15,44,.95) 0%,rgba(36,27,78,.78) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
}
.hero-compact .container{position:relative;z-index:2}
.star{
  position:absolute;width:2px;height:2px;border-radius:50%;background:#fff;opacity:.2;z-index:1;
}
.star.s1{top:18%;left:8%}
.star.s2{top:34%;left:18%}
.star.s3{top:66%;left:11%;width:1px;height:1px}
.star.s4{top:22%;left:42%}
.star.s5{top:72%;left:38%;width:1px;height:1px}
.star.s6{top:14%;left:63%}
.star.s7{top:56%;left:70%;width:1px;height:1px}
.star.s8{top:78%;left:82%}
.star.s9{top:30%;left:91%}
.star.s10{top:60%;left:52%;width:1px;height:1px}
.crumbs{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.66);margin-bottom:16px;
}
.crumbs a{color:rgba(255,255,255,.82);transition:color .2s var(--ease)}
.crumbs a:hover{color:#fff}
.crumbs span.sep{opacity:.55}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);
  font-size:13px;font-weight:600;color:#fff;margin-bottom:16px;
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block}
.hero-compact h1{
  font-size:clamp(30px,4vw,44px);font-weight:700;letter-spacing:-.5px;margin-bottom:14px;
}
.hero-compact .lead{
  max-width:640px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.82);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
  font-size:13px;color:rgba(255,255,255,.86);
}
.chip b{font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;color:#fff}

/* ============ Sections ============ */
.section{padding:96px 0}
.section.tight{padding-top:0}
.section-head{max-width:720px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--primary);
  letter-spacing:.4px;margin-bottom:14px;
}
.eyebrow::before{content:"";width:4px;height:16px;border-radius:2px;background:linear-gradient(180deg,var(--primary),var(--primary-2))}
h2{font-size:clamp(24px,3vw,34px)}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px}
.alt-bg{background:#fff}

/* Intro split */
.split{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.split-text h2{margin-bottom:16px}
.split-text p{color:var(--ink-2);margin-bottom:1.2em}
.split-text p:last-of-type{margin-bottom:0}
.inline-facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.fact{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 16px;border-radius:var(--r-btn);background:#fff;
  border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--ink-2);
  box-shadow:var(--shadow-1);
}
.fact i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:block}
.split-media{position:relative}
.split-media img{
  width:100%;height:100%;min-height:300px;object-fit:cover;
  border-radius:var(--r-big);box-shadow:var(--shadow-1);
}
.split-media::after{
  content:"";position:absolute;inset:auto -14px -14px auto;width:120px;height:120px;
  border-radius:50%;background:radial-gradient(circle,rgba(140,107,255,.28),rgba(140,107,255,0));
  z-index:-1;
}

/* Point grid */
.point-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.point-card{
  display:flex;gap:16px;padding:26px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.point-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(91,75,232,.24)}
.point-icon{
  flex:0 0 auto;width:46px;height:46px;border-radius:15px;
  display:grid;place-items:center;color:var(--primary);
  background:rgba(91,75,232,.1);
}
.point-icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.point-card h3{font-size:18px;font-weight:600;margin-bottom:8px}
.point-card p{font-size:15px;color:var(--ink-2)}

/* Timeline */
.timeline{position:relative;margin-top:8px;max-width:860px}
.timeline::before{
  content:"";position:absolute;left:19px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,var(--primary) 0%,rgba(91,75,232,.06) 100%);
}
.tl-item{position:relative;padding-left:66px;margin-bottom:24px}
.tl-item:last-child{margin-bottom:0}
.tl-dot{
  position:absolute;left:0;top:4px;width:40px;height:40px;border-radius:50%;
  background:#fff;border:2px solid rgba(91,75,232,.28);
  display:grid;place-items:center;
  font-size:13px;font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;
  box-shadow:0 6px 18px rgba(91,75,232,.12);
}
.tl-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 26px;box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.tl-card h3{font-size:18px;font-weight:600;margin-bottom:8px}
.tl-card p{font-size:15px;color:var(--ink-2)}
.tl-meta{
  display:inline-flex;align-items:center;gap:8px;margin-top:14px;
  font-size:13px;font-weight:600;color:var(--accent);
}
.tl-meta i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:rgba(91,75,232,.28)}
.faq-item[open]{box-shadow:var(--shadow-1)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:12px 20px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  position:relative;flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  border:1px solid var(--line);display:grid;place-items:center;
  color:var(--primary);transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px;transition:transform .22s var(--ease)}
.faq-item[open] .faq-icon{background:var(--primary);color:#fff;border-color:transparent}
.faq-item[open] .faq-icon::after{transform:scaleY(0)}
.faq-body{
  padding:4px 20px 22px;background:#F7F6FC;
  border-top:1px solid var(--line);
  font-size:15px;line-height:1.85;color:var(--ink-2);
}

/* CTA band */
.cta-wrap{padding:0 0 96px}
.cta-band{
  position:relative;overflow:hidden;
  background-color:var(--bg-hero-a);
  background-image:linear-gradient(115deg,rgba(18,15,44,.94) 0%,rgba(36,27,78,.82) 100%),
    url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
  border-radius:var(--r-big);padding:52px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
}
.cta-band .cta-text{position:relative;z-index:2;max-width:640px}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.8);font-size:15.5px}
.cta-band .hero-actions{margin-top:24px;position:relative;z-index:2}
.cta-badge{
  position:relative;z-index:2;flex:0 0 auto;text-align:center;
  padding:22px 26px;border-radius:var(--r-card);
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);
}
.cta-badge strong{
  display:block;font-size:34px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.1;
}
.cta-badge strong em{font-style:normal;font-size:15px;font-weight:600;opacity:.8;margin-left:4px}
.cta-badge span{display:block;margin-top:6px;font-size:13px;color:rgba(255,255,255,.74)}

/* ============ Footer ============ */
.site-footer{background:var(--bg-night);color:rgba(255,255,255,.72);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:32px;height:32px;border-radius:10px}
.footer-brand strong{color:#fff;font-size:16px;font-weight:700}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:360px}
.footer-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-chips span{
  font-size:12px;padding:6px 12px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:rgba(255,255,255,.74);
}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px}
.site-footer .footer-grid > div > a{
  display:block;font-size:14px;padding:6px 0;color:rgba(255,255,255,.72);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.site-footer .footer-grid > div > a:hover{color:#fff;transform:translateX(3px)}
.footer-contact li{font-size:14px;padding:6px 0;color:rgba(255,255,255,.72)}
.footer-contact li span{display:block;font-size:12px;color:rgba(255,255,255,.45);margin-bottom:2px}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom .links a{color:rgba(255,255,255,.72);transition:color .2s var(--ease)}
.footer-bottom .links a:hover{color:#fff}

/* ============ Responsive ============ */
@media (max-width:1024px){
  .container{padding:0 20px}
  .section{padding:72px 0}
  .cta-wrap{padding-bottom:72px}
  .search-box input{width:180px}
  .nav-links{gap:16px;padding-left:16px}
  .nav-links a{font-size:14px}
  .split{grid-template-columns:1fr;gap:32px}
  .split-media img{min-height:240px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:960px){
  .nav-links,.header-actions{display:none}
  .menu-toggle{display:grid}
  .header-inner{height:64px}
  .brand-text{font-size:15px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .section{padding:56px 0}
  .cta-wrap{padding-bottom:56px}
  .point-grid{grid-template-columns:1fr}
  .hero-compact{padding:40px 0 46px}
  .timeline::before{left:15px}
  .tl-item{padding-left:50px}
  .tl-dot{width:32px;height:32px;font-size:12px;top:6px}
  .tl-card{padding:20px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 24px;gap:24px}
  .cta-badge{width:100%;text-align:left}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-top:52px}
  .footer-bottom{margin-top:36px}
}
@media (max-width:520px){
  .brand-text{font-size:13.5px}
  .btn{height:42px;padding:0 18px;font-size:14px}
  .hero-chips{gap:8px}
  .chip{font-size:12px;padding:7px 12px}
  .faq-item summary{font-size:15px;padding:12px 16px}
  .faq-body{padding:4px 16px 18px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .btn:hover,.point-card:hover,.tl-card:hover{transform:none}
}