/* roulang page: index */
/* ============ 设计令牌 ============ */
:root{
  --brand:#6C3BFF;
  --brand-2:#8A63FF;
  --brand-soft:rgba(108,59,255,.12);
  --accent:#16E0B8;
  --spark:#FF6A3D;
  --base:#0F0A1E;
  --panel:#181031;
  --line:rgba(255,255,255,.08);
  --surface:#F7F5FC;
  --ink:#14102A;
  --ink-sub:#5B5570;
  --on-dark:#FFFFFF;
  --on-dark-sub:#B7AECF;
  --ok:#1FBF75;
  --warn:#FFB020;
  --err:#FF4D4F;
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --shadow-dark:0 18px 40px -20px rgba(0,0,0,.45);
  --shadow-light:0 12px 30px -18px rgba(20,16,42,.10);
  --container:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.8;
  font-weight:400;
  color:var(--on-dark);
  background:var(--base);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-2);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--accent);}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.25;color:var(--on-dark);}
h1{font-size:48px;line-height:1.15;}
h2{font-size:32px;}
h3{font-size:22px;line-height:1.35;font-weight:700;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
figure{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 16px;border-radius:0 0 8px 0;z-index:200;}
.skip-link:focus{left:0;color:#fff;}

/* ============ 容器 ============ */
.rl-container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ 顶部提示条 ============ */
.top-note{background:linear-gradient(90deg,rgba(108,59,255,.22),rgba(22,224,184,.12));border-bottom:1px solid var(--line);font-size:13px;}
.top-note-inner{display:flex;align-items:center;gap:10px;min-height:40px;color:var(--on-dark-sub);}
.top-note .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);flex:0 0 auto;box-shadow:0 0 0 4px rgba(22,224,184,.16);}
.top-note p{margin:0;flex:1 1 auto;font-size:13px;line-height:1.6;}
.top-note-close{font-size:20px;line-height:1;color:var(--on-dark-sub);padding:4px 8px;border-radius:6px;}
.top-note-close:hover{color:#fff;background:rgba(255,255,255,.06);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;left:0;right:0;z-index:60;
  background:rgba(15,10,30,.72);
  backdrop-filter:saturate(140%) blur(12px);
  -webkit-backdrop-filter:saturate(140%) blur(12px);
  border-bottom:1px solid transparent;
  transition:background .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(15,10,30,.96);
  border-bottom-color:var(--line);
  box-shadow:0 14px 34px -24px rgba(0,0,0,.9);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:#fff;font-weight:800;font-size:18px;letter-spacing:-.01em;}
.brand:hover{color:#fff;}
.brand-mark{
  width:28px;height:28px;border-radius:9px;flex:0 0 auto;position:relative;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.16);
}
.brand-mark::after{content:"";position:absolute;inset:8px;border-radius:3px;background:var(--base);}
.brand-text{white-space:nowrap;}

.main-nav{margin-left:auto;}
.main-nav ul{display:flex;align-items:center;gap:4px;}
.main-nav a{
  display:block;position:relative;padding:9px 14px;border-radius:8px;
  font-size:15.5px;font-weight:500;color:var(--on-dark-sub);white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.06);}
.main-nav a.is-active{color:#fff;}
.main-nav a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}

/* 汉堡按钮 */
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease);}
.nav-toggle:hover{border-color:rgba(108,59,255,.5);}

/* 移动端抽屉 */
.mobile-drawer{
  position:fixed;left:0;right:0;top:0;bottom:0;z-index:90;
  background:var(--base);padding:20px 20px 140px;
  display:flex;flex-direction:column;gap:6px;overflow-y:auto;
  transform:translateX(100%);transition:transform .26s var(--ease);
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{width:44px;height:44px;border-radius:10px;border:1px solid var(--line);font-size:20px;color:var(--on-dark-sub);}
.drawer-close:hover{color:#fff;border-color:rgba(108,59,255,.5);}
.drawer-nav a{
  display:block;padding:16px 4px;font-size:18px;font-weight:700;color:var(--on-dark-sub);
  border-bottom:1px solid var(--line-soft);
}
.drawer-nav a.is-active{color:#fff;}
.drawer-nav a.is-active::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--brand);margin-right:10px;vertical-align:middle;}
.drawer-cta{margin-top:24px;display:flex;flex-direction:column;gap:12px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:700;line-height:1;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 26px -16px rgba(108,59,255,.95);}
.btn-primary:hover{background:#7d51ff;color:#fff;transform:translateY(-2px);box-shadow:0 18px 34px -16px rgba(108,59,255,1);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(108,59,255,.42);}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:#fff;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px;}
.btn-block{width:100%;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand-2);font-weight:700;
  text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;
}
.btn-text:hover{color:var(--accent);}
.section-light .btn-ghost{color:var(--ink);border-color:rgba(108,59,255,.42);}
.section-light .btn-ghost:hover{color:var(--ink);background:var(--brand-soft);}
.section-light .btn-text{color:var(--brand);}

/* ============ 首屏 ============ */
.hero{
  position:relative;overflow:hidden;padding:96px 0 104px;
  background:
    radial-gradient(circle at 78% 22%,rgba(108,59,255,.26),transparent 46%),
    radial-gradient(circle at 10% 88%,rgba(22,224,184,.12),transparent 42%),
    var(--base);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:8px 8px;
}
.hero > .rl-container{position:relative;z-index:2;}
.hero-grid{align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;margin-bottom:20px;
  font-size:12.5px;font-weight:700;letter-spacing:.06em;
  color:var(--accent);background:rgba(22,224,184,.1);
  border:1px solid rgba(22,224,184,.28);
}
.hero h1{margin-bottom:16px;}
.hero-sub{font-size:17px;color:var(--on-dark-sub);max-width:520px;margin-bottom:24px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;}
.hero-badges li{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:999px;font-size:13.5px;color:var(--on-dark-sub);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
}
.hero-badges li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;}

.hero-visual{position:relative;}
.hero-card{
  position:relative;border-radius:22px;overflow:hidden;
  border:1px solid rgba(255,255,255,.12);
  box-shadow:var(--shadow-dark);
  background:var(--panel);
}
.hero-card img{width:100%;aspect-ratio:16/11;object-fit:cover;opacity:.82;}
.hero-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(15,10,30,.18) 0%,rgba(15,10,30,.72) 100%);
}
.hero-float{
  position:absolute;right:18px;bottom:18px;z-index:2;
  display:flex;align-items:center;gap:10px;
  padding:12px 16px;border-radius:14px;
  background:rgba(15,10,30,.92);border:1px solid var(--line);
  box-shadow:0 16px 30px -20px rgba(0,0,0,.9);
}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:0 0 auto;box-shadow:0 0 0 4px rgba(22,224,184,.16);}
.hero-float strong{display:block;font-size:13.5px;line-height:1.4;color:#fff;}
.hero-float span{font-size:12.5px;color:var(--on-dark-sub);}

/* ============ 板块通用 ============ */
.section{position:relative;padding:104px 0;}
.section-light{background:var(--surface);color:var(--ink);}
.section-light h2,.section-light h3,.section-light h4{color:var(--ink);}
.section-light p{color:var(--ink-sub);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-label{
  display:inline-block;margin-bottom:14px;font-size:12.5px;font-weight:700;letter-spacing:.14em;
  color:var(--brand-2);text-transform:uppercase;
}
.section-light .section-label{color:var(--brand);}
.section-head h2{margin-bottom:14px;}
.section-head p{font-size:16.5px;color:var(--on-dark-sub);}
.section-light .section-head p{color:var(--ink-sub);}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;}
.section-head-row .section-head{margin-bottom:0;}

/* ============ 卖点三连（非对称） ============ */
.feature-lead{
  position:relative;height:100%;
  padding:38px 34px;border-radius:var(--r-card);
  background:var(--panel);border:1px solid var(--line);
  transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.feature-lead:hover{border-color:rgba(108,59,255,.45);transform:translateY(-3px);box-shadow:var(--shadow-dark);}
.big-index{
  display:block;font-family:"Inter",system-ui,sans-serif;font-variant-numeric:tabular-nums;
  font-size:56px;font-weight:800;line-height:1;letter-spacing:-.04em;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:22px;
}
.feature-lead h3{margin-bottom:12px;}
.feature-lead p{color:var(--on-dark-sub);font-size:15.5px;margin-bottom:24px;}
.feature-lead .btn-text{margin-top:auto;}

.feature-row{
  display:flex;align-items:center;gap:20px;
  padding:26px 28px;border-radius:var(--r-card);
  background:var(--panel);border:1px solid var(--line);
  transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.feature-row:hover{border-color:rgba(108,59,255,.45);transform:translateX(4px);box-shadow:var(--shadow-dark);}
.feature-row .num{
  flex:0 0 auto;font-family:"Inter",system-ui,sans-serif;font-size:22px;font-weight:800;
  color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:-.02em;
  min-width:44px;
}
.feature-row .txt{flex:1 1 auto;}
.feature-row h3{font-size:18px;margin-bottom:6px;}
.feature-row p{font-size:14.5px;color:var(--on-dark-sub);margin:0;}
.tag{
  flex:0 0 auto;padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:700;
  color:var(--brand-2);background:var(--brand-soft);border:1px solid rgba(108,59,255,.24);
}
.feature-stack{display:flex;flex-direction:column;gap:20px;height:100%;}
.feature-stack .feature-row{flex:1 1 auto;}

/* ============ 场景演示（浅色段 + Tabs） ============ */
.scene-tabs .tabs{
  display:flex;gap:10px;margin:0 0 36px;padding:0 0 6px;
  border:0;background:transparent;overflow-x:auto;-webkit-overflow-scrolling:touch;
}
.scene-tabs .tabs::after,.scene-tabs .tabs::before{display:none;}
.scene-tabs .tabs-title{float:none;flex:0 0 auto;}
.scene-tabs .tabs-title > a{
  display:block;padding:11px 22px;border-radius:999px;font-size:15px;font-weight:700;
  color:var(--ink-sub);background:#fff;border:1px solid rgba(20,16,42,.1);
  transition:all .2s var(--ease);
}
.scene-tabs .tabs-title > a:hover{color:var(--brand);border-color:rgba(108,59,255,.4);}
.scene-tabs .tabs-title.is-active > a{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:0 12px 24px -16px rgba(108,59,255,.9);}
.scene-tabs .tabs-content{margin:0;border:0;background:transparent;}
.scene-tabs .tabs-panel{padding:0;min-height:340px;}
.device-frame{
  border-radius:var(--r-img);overflow:hidden;border:1px solid rgba(20,16,42,.1);
  box-shadow:var(--shadow-light);background:#fff;
}
.device-frame img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.step-list{counter-reset:step;display:flex;flex-direction:column;gap:0;}
.step-list li{
  position:relative;padding:0 0 26px 46px;
  border-left:1px solid rgba(108,59,255,.22);margin-left:14px;
}
.step-list li:last-child{border-left-color:transparent;padding-bottom:0;}
.step-list li::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;left:-15px;top:0;width:30px;height:30px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:"Inter",system-ui,sans-serif;font-size:12.5px;font-weight:800;
  color:#fff;background:var(--brand);font-variant-numeric:tabular-nums;
}
.step-list h3{font-size:17px;margin:2px 0 6px;}
.step-list p{font-size:14.5px;color:var(--ink-sub);margin:0;}

/* ============ 社会认同 ============ */
.stats-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  padding:32px 0 44px;border-bottom:1px solid var(--line);margin-bottom:56px;
}
.stat-item strong{
  display:block;font-family:"Inter",system-ui,sans-serif;font-size:38px;font-weight:800;
  line-height:1.1;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:-.03em;
}
.stat-item span{font-size:13.5px;color:var(--on-dark-sub);}
.review-card{
  height:100%;padding:28px 26px;border-radius:var(--r-card);
  background:var(--panel);border:1px solid var(--line);
  transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.review-card:hover{border-color:rgba(108,59,255,.45);transform:translateY(-3px);box-shadow:var(--shadow-dark);}
.review-top{display:flex;align-items:center;gap:14px;margin-bottom:16px;}
.avatar{
  width:44px;height:44px;border-radius:50%;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--accent));
}
.review-top strong{display:block;font-size:15px;color:#fff;line-height:1.4;}
.stars{font-size:13px;letter-spacing:2px;color:var(--warn);}
.review-card p{font-size:14.5px;color:var(--on-dark-sub);margin:0;}
.partner-strip{
  display:flex;flex-wrap:wrap;gap:14px;margin-top:48px;padding-top:32px;
  border-top:1px solid var(--line);
}
.partner-strip span{
  display:block;min-width:130px;height:44px;border-radius:10px;
  border:1px dashed rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:center;
  font-size:12.5px;color:rgba(183,174,207,.6);
}

/* ============ 资讯列表 ============ */
.post-grid{min-height:320px;}
.post-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  border-radius:var(--r-card);background:var(--panel);border:1px solid var(--line);
  transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.post-card:hover{border-color:rgba(108,59,255,.5);transform:translateY(-3px);box-shadow:var(--shadow-dark);}
.post-cover{position:relative;overflow:hidden;background:#120C26;}
.post-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s var(--ease);}
.post-card:hover .post-cover img{transform:scale(1.03);}
.post-badge{
  position:absolute;left:14px;top:14px;padding:5px 12px;border-radius:999px;
  font-size:12.5px;font-weight:700;color:#fff;background:rgba(108,59,255,.9);
  backdrop-filter:blur(4px);
}
.post-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.post-title{
  font-size:17.5px;font-weight:700;line-height:1.45;color:#fff;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-excerpt{
  font-size:14px;color:var(--on-dark-sub);margin:0 0 18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(183,174,207,.75);padding-top:14px;border-top:1px solid var(--line-soft);
}
.post-arrow{color:var(--brand-2);font-weight:800;transition:transform .2s var(--ease);}
.post-card:hover .post-arrow{transform:translateX(4px);}
.empty-state{
  padding:56px 24px;border-radius:var(--r-card);text-align:center;
  border:1px dashed rgba(255,255,255,.16);background:rgba(255,255,255,.02);
}
.empty-state p{color:var(--on-dark-sub);margin:0 0 18px;}

/* ============ FAQ ============ */
.faq-accordion{margin:0;border:0;background:transparent;}
.faq-accordion .accordion-item{
  margin-bottom:12px;border:1px solid rgba(20,16,42,.08);border-radius:12px;
  background:#fff;overflow:hidden;box-shadow:var(--shadow-light);
}
.faq-accordion .accordion-item.is-active{border-color:rgba(108,59,255,.4);}
.faq-accordion .accordion-title{
  position:relative;padding:20px 54px 20px 22px;font-size:17px;font-weight:500;color:var(--ink);
  border:0;background:transparent;line-height:1.5;transition:color .2s var(--ease);
}
.faq-accordion .accordion-title:hover{color:var(--brand);background:rgba(108,59,255,.04);}
.faq-accordion .accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--brand);border:0;margin:0;line-height:1;
}
.faq-accordion .accordion-item.is-active .accordion-title::before{content:"−";}
.faq-accordion .accordion-content{
  display:none;padding:0 22px 22px;border:0;background:transparent;
  font-size:15.5px;line-height:1.9;color:var(--ink-sub);
}
.faq-accordion .accordion-content p{margin:0 0 10px;color:var(--ink-sub);}
.faq-accordion .accordion-content p:last-child{margin-bottom:0;}

/* ============ 底部转化区 ============ */
.cta-band{position:relative;padding:104px 0;overflow:hidden;background:var(--base);}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:8px 8px;
}
.cta-inner{
  position:relative;z-index:2;text-align:center;max-width:760px;margin:0 auto;
  padding:56px 40px;border-radius:22px;
  background:linear-gradient(180deg,rgba(108,59,255,.16),rgba(108,59,255,.06));
  border:1px solid rgba(108,59,255,.42);
  box-shadow:0 30px 60px -40px rgba(108,59,255,.9);
}
.cta-inner h2{margin-bottom:16px;font-size:30px;}
.cta-inner p{color:var(--on-dark-sub);margin-bottom:30px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;align-items:center;}

/* ============ 页脚 ============ */
.site-footer{
  background:#0B0716;border-top:1px solid var(--line);
  padding:72px 0 88px;font-size:14.5px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{color:var(--on-dark-sub);font-size:14px;margin-bottom:20px;max-width:280px;}
.footer-col h4{font-size:14.5px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{color:var(--on-dark-sub);font-size:14px;}
.footer-col a:hover{color:var(--accent);}
.footer-col .static-item{color:var(--on-dark-sub);font-size:14px;}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(183,174,207,.7);
}
.footer-bottom p{margin:0;font-size:13px;}

/* ============ 吸底转化条 ============ */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:55;
  background:rgba(15,10,30,.97);
  border-top:1px solid rgba(108,59,255,.5);
  backdrop-filter:blur(10px);
  transform:translateY(110%);
  transition:transform .26s var(--ease);
}
.sticky-bar.is-visible{transform:translateY(0);}
.sticky-inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:68px;padding-top:10px;padding-bottom:10px;
}
.sticky-text{margin:0;font-size:14.5px;color:var(--on-dark-sub);}
.sticky-text strong{color:#fff;}
.sticky-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  h1{font-size:34px;}
  h2{font-size:26px;}
  .section{padding:80px 0;}
  .hero{padding:72px 0 80px;}
  .hero-visual{margin-top:40px;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-primary{display:none;}
  .stats-band{grid-template-columns:repeat(2,1fr);gap:20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .sticky-bar{transform:translateY(0);padding-bottom:env(safe-area-inset-bottom);}
  .cta-inner{padding:44px 24px;}
}
@media (max-width:767px){
  .section{padding:64px 0;}
  .header-inner{min-height:60px;}
  .brand{font-size:16.5px;}
  .section-head-row{flex-direction:column;align-items:flex-start;}
  .feature-lead{padding:30px 24px;}
  .feature-row{padding:22px 20px;}
  .big-index{font-size:46px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .sticky-inner{flex-direction:column;align-items:stretch;gap:10px;padding:12px 0;}
  .sticky-actions .btn{flex:1 1 auto;}
}
@media (max-width:519px){
  .rl-container{padding:0 18px;}
  h1{font-size:30px;}
  h2{font-size:24px;}
  h3{font-size:20px;}
  body{font-size:16px;}
  .hero{padding:56px 0 64px;}
  .hero-cta{flex-direction:column;}
  .hero-cta .btn{width:100%;}
  .stats-band{grid-template-columns:repeat(2,1fr);}
  .stat-item strong{font-size:30px;}
  .scene-tabs .tabs-title > a{padding:10px 16px;font-size:14px;}
  .cta-inner h2{font-size:22px;}
  .top-note p{font-size:12.5px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --brand:#6C3BFF;
  --brand-soft:rgba(108,59,255,.12);
  --brand-line:rgba(108,59,255,.40);
  --accent:#16E0B8;
  --accent-soft:rgba(22,224,184,.12);
  --spark:#FF6A3D;
  --base:#0F0A1E;
  --panel:#181031;
  --panel-2:#1E1740;
  --line:rgba(255,255,255,.08);
  --surface:#F7F5FC;
  --card:#FFFFFF;
  --text:#FFFFFF;
  --text-2:#B7AECF;
  --ink:#14102A;
  --ink-2:#5B5570;
  --line-light:rgba(20,16,42,.08);
  --ok:#1FBF75;
  --warn:#FFB020;
  --err:#FF4D4F;
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --r-pill:999px;
  --sh-dark:0 18px 40px -20px rgba(0,0,0,.45);
  --sh-light:0 12px 30px -18px rgba(20,16,42,.10);
  --sec:104px;
  --font:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--base);
  color:var(--text);
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img);}
a{color:var(--brand);text-decoration:none;text-underline-offset:4px;}
a:hover{color:#8A63FF;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;color:inherit;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.rl-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(15,10,30,.72);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.site-header.is-solid{
  background:rgba(15,10,30,.96);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px -20px rgba(0,0,0,.9);
}
.header-inner{display:flex;align-items:center;gap:24px;min-height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:800;font-size:18px;letter-spacing:-.01em;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:28px;height:28px;border-radius:9px;flex:0 0 28px;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  box-shadow:0 0 0 1px rgba(255,255,255,.14) inset;
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:8px 8px auto 8px;height:2px;background:rgba(255,255,255,.85);border-radius:2px;
  box-shadow:0 5px 0 rgba(255,255,255,.55),0 10px 0 rgba(255,255,255,.3);
}
.main-nav{margin-left:auto;}
.main-nav ul{display:flex;align-items:center;gap:6px;}
.main-nav a{
  position:relative;display:inline-block;
  padding:10px 14px;border-radius:8px;
  color:var(--text-2);font-size:15px;font-weight:500;
  transition:color .2s ease-out,background-color .2s ease-out;
}
.main-nav a:hover{color:var(--text);background:rgba(255,255,255,.05);}
.main-nav a.is-active{color:var(--brand);}
.main-nav a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text);
  font-size:18px;cursor:pointer;transition:background-color .2s ease-out,border-color .2s ease-out;
}
.nav-toggle:hover{background:rgba(255,255,255,.09);border-color:var(--brand-line);}
.mobile-drawer{
  display:none;position:fixed;inset:0;z-index:90;
  background:rgba(15,10,30,.98);
  padding:22px 20px 32px;
  overflow-y:auto;
  opacity:0;pointer-events:none;transform:translateY(-8px);
  transition:opacity .2s ease-out,transform .2s ease-out;
}
.mobile-drawer.is-open{opacity:1;pointer-events:auto;transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:var(--text);font-size:18px;cursor:pointer;
}
.drawer-list{display:flex;flex-direction:column;gap:6px;margin-bottom:26px;}
.drawer-list a{
  display:block;padding:14px 4px;font-size:17px;font-weight:600;color:var(--text);
  border-bottom:1px dashed var(--line);
}
.drawer-list a.is-active{color:var(--brand);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 26px -16px rgba(108,59,255,.9);}
.btn-primary:hover{background:#7C4FFF;color:#fff;transform:translateY(-2px);box-shadow:0 18px 32px -16px rgba(108,59,255,.95);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:#fff;border-color:var(--brand-line);}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:#fff;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:9px;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:700;font-size:15px;
  border-bottom:1px solid transparent;transition:border-color .2s ease-out,gap .2s ease-out;
}
.btn-link:hover{border-bottom-color:var(--brand);gap:10px;}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:700;letter-spacing:.02em;
}
.badge-brand{background:var(--brand-soft);color:#B9A3FF;}
.badge-accent{background:var(--accent-soft);color:var(--accent);}
.badge-spark{background:rgba(255,106,61,.14);color:var(--spark);}
.dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(22,224,184,.14);}

/* ---------- 文章页头部 ---------- */
.art-hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(180deg,rgba(15,10,30,.82),rgba(15,10,30,.96)),url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.art-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:8px 8px;opacity:.5;pointer-events:none;
}
.art-hero::after{
  content:"";position:absolute;width:520px;height:520px;right:-140px;top:-220px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,59,255,.42),transparent 68%);filter:blur(30px);pointer-events:none;
}
.art-hero-inner{position:relative;z-index:2;padding:34px 0 46px;max-width:880px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-2);margin-bottom:20px;}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--accent);}
.crumb .sep{opacity:.5;}
.crumb .current{color:#8E86A8;}
.art-hero h1{font-size:44px;line-height:1.15;margin:16px 0 16px;max-width:18em;}
.art-meta{display:flex;flex-wrap:wrap;align-items:center;gap:18px;font-size:13px;color:var(--text-2);}
.art-meta span{display:inline-flex;align-items:center;gap:7px;}
.art-cover{margin-top:34px;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-dark);}
.art-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}

/* ---------- 主体布局 ---------- */
.art-main{padding:64px 0 var(--sec);}
.art-layout{display:flex;gap:40px;align-items:flex-start;}
.art-col{flex:1 1 auto;min-width:0;max-width:820px;}
.art-side{flex:0 0 330px;position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}

/* ---------- 文章正文排版 ---------- */
.article-body{color:#DCD6EC;font-size:17px;line-height:1.95;}
.article-body > * + *{margin-top:1.2em;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;color:#fff;font-size:30px;line-height:1.25;margin:44px 0 18px;padding-left:16px;
}
.article-body h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--brand);}
.article-body h3{color:#fff;font-size:20px;font-weight:700;margin:34px 0 12px;}
.article-body h4{color:#fff;font-size:17px;font-weight:700;margin:26px 0 10px;}
.article-body a{color:#A98CFF;text-decoration:underline;text-underline-offset:4px;}
.article-body a:hover{color:var(--accent);}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:2px;}
.article-body li{position:relative;padding-left:22px;margin-bottom:10px;}
.article-body ul > li::before{
  content:"";position:absolute;left:2px;top:.72em;width:8px;height:8px;border-radius:2px;background:var(--brand);
}
.article-body ol{counter-reset:li;}
.article-body ol > li::before{
  counter-increment:li;content:counter(li);position:absolute;left:0;top:.2em;
  width:18px;height:18px;border-radius:5px;background:var(--brand-soft);color:#B9A3FF;
  font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;line-height:1;
}
.article-body blockquote{
  margin:26px 0;padding:20px 22px;border-left:3px solid var(--brand);border-radius:0 12px 12px 0;
  background:rgba(108,59,255,.08);color:#E7E2F5;
}
.article-body img{border-radius:var(--r-img);margin:24px 0 10px;border:1px solid var(--line);}
.article-body code{
  background:rgba(255,255,255,.08);padding:2px 7px;border-radius:6px;font-size:15px;color:var(--accent);
}
.article-body pre{
  background:#120C26;border:1px solid var(--line);border-radius:12px;padding:18px 20px;overflow-x:auto;
}
.article-body pre code{background:none;padding:0;color:#D8D2EC;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px;}
.article-body .table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;}
.article-body th{background:rgba(255,255,255,.05);color:#fff;font-weight:700;}
.article-body tr:last-child td{border-bottom:none;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:34px 0;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--text-2);margin-top:8px;text-align:center;}

.empty-box{
  border:1px dashed var(--line);border-radius:var(--r-card);background:var(--panel);
  padding:48px 28px;text-align:center;
}
.empty-box i{font-size:30px;color:var(--brand);}
.empty-box h2{margin:16px 0 10px;font-size:24px;color:#fff;}
.empty-box p{color:var(--text-2);margin-bottom:22px;}

/* ---------- 文末标签 ---------- */
.art-foot{margin-top:44px;padding-top:26px;border-top:1px solid var(--line);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;}
.tag{
  display:inline-flex;align-items:center;padding:7px 14px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text-2);font-size:13px;
}
.share-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--text-2);}
.share-row .share-item{
  width:38px;height:38px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.03);
}
.art-back{margin-top:24px;}

/* ---------- 侧栏卡片 ---------- */
.side-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-dark);
}
.side-card h3{font-size:16px;color:#fff;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-list li{
  display:flex;gap:10px;font-size:14px;color:var(--text-2);padding:9px 0;border-bottom:1px dashed var(--line);
}
.side-list li:last-child{border-bottom:none;}
.side-list i{color:var(--accent);margin-top:5px;font-size:12px;}
.side-cta{background:linear-gradient(160deg,rgba(108,59,255,.20),rgba(24,16,49,.9));border-color:var(--brand-line);}
.side-cta p{font-size:14px;color:var(--text-2);margin:8px 0 18px;}

/* ---------- 浅色段落 ---------- */
.section{padding:var(--sec) 0;}
.section-light{background:var(--surface);color:var(--ink);}
.section-light h2,.section-light h3{color:var(--ink);}
.sec-head{max-width:720px;margin-bottom:32px;}
.sec-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:var(--brand);margin-bottom:12px;
}
.section-light .eyebrow{color:var(--brand);}
.sec-head h2{font-size:32px;line-height:1.25;}
.sec-head p{margin-top:12px;color:var(--text-2);font-size:16px;}
.section-light .sec-head p{color:var(--ink-2);}

/* ---------- 核对清单 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.check-card{
  background:var(--card);border:1px solid var(--line-light);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-light);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.check-card:hover{transform:translateY(-3px);border-color:var(--brand-line);box-shadow:0 18px 34px -20px rgba(20,16,42,.22);}
.check-card .idx{
  font-size:13px;font-weight:800;color:var(--brand);letter-spacing:.1em;display:block;margin-bottom:14px;
}
.check-card h3{font-size:19px;margin-bottom:10px;}
.check-card p{font-size:14.5px;color:var(--ink-2);line-height:1.75;}
.check-note{
  margin-top:24px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  background:rgba(108,59,255,.06);border:1px solid rgba(108,59,255,.18);border-radius:var(--r-card);padding:20px 24px;
}
.check-note p{font-size:15px;color:var(--ink);font-weight:600;margin:0;}

/* ---------- 相关推荐卡片 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rel-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line-light);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-light);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;color:var(--ink);
}
.rel-card:hover{transform:translateY(-3px);border-color:var(--brand-line);box-shadow:0 20px 36px -22px rgba(20,16,42,.26);color:var(--ink);}
.rel-thumb{position:relative;overflow:hidden;aspect-ratio:16/9;background:#E7E3F4;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease-out;}
.rel-card:hover .rel-thumb img{transform:scale(1.03);}
.rel-thumb .badge{position:absolute;left:12px;top:12px;}
.rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1 1 auto;}
.rel-body h3{font-size:17px;line-height:1.45;color:var(--ink);}
.rel-body p{font-size:14px;color:var(--ink-2);line-height:1.7;}
.rel-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line-light);
  display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-2);
}
.rel-meta i{color:var(--brand);}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start;}
.faq-item{
  background:var(--card);border:1px solid var(--line-light);border-radius:12px;
  box-shadow:var(--sh-light);overflow:hidden;transition:border-color .2s ease-out;
}
.faq-item[open]{border-color:var(--brand-line);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 20px;display:flex;align-items:flex-start;gap:12px;
  font-size:17px;font-weight:500;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";margin-left:auto;font-size:20px;line-height:1;color:var(--brand);font-weight:700;
  transition:transform .2s ease-out;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-answer{padding:0 20px 20px;font-size:15px;color:var(--ink-2);line-height:1.8;}

/* ---------- 底部转化区 ---------- */
.cta-block{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,rgba(108,59,255,.14),rgba(24,16,49,.96)),url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  border-top:1px solid var(--brand-line);border-bottom:1px solid var(--brand-line);
}
.cta-block .cta-inner{
  position:relative;z-index:2;padding:72px 0;text-align:center;max-width:760px;margin:0 auto;
}
.cta-block h2{font-size:32px;line-height:1.3;margin-bottom:14px;}
.cta-block p{color:var(--text-2);font-size:16px;margin-bottom:28px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;align-items:center;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--base);border-top:1px solid var(--line);padding:64px 0 88px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
.footer-brand p{color:var(--text-2);font-size:14.5px;line-height:1.8;margin:16px 0 20px;max-width:34ch;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col a{color:var(--text-2);font-size:14.5px;}
.footer-col a:hover{color:var(--accent);}
.static-item{color:#7A7290;font-size:14.5px;}
.footer-bottom{
  margin-top:44px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13.5px;color:#8E86A8;
}

/* ---------- 吸底条 ---------- */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:55;
  background:rgba(15,10,30,.97);border-top:1px solid var(--brand);
  box-shadow:0 -12px 30px -20px rgba(0,0,0,.9);
  transform:translateY(120%);opacity:0;transition:transform .24s ease-out,opacity .24s ease-out;
}
.sticky-bar.is-visible{transform:translateY(0);opacity:1;}
.sticky-inner{
  display:flex;align-items:center;gap:16px;min-height:68px;padding:10px 0 env(safe-area-inset-bottom);
}
.sticky-text{display:flex;align-items:center;gap:10px;font-size:14.5px;color:var(--text-2);margin-right:auto;}
.sticky-actions{display:flex;gap:10px;flex-wrap:wrap;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  :root{--sec:80px;}
  .art-hero h1{font-size:34px;}
  .art-layout{flex-direction:column;gap:32px;}
  .art-col{max-width:none;width:100%;}
  .art-side{position:static;flex:1 1 auto;width:100%;flex-direction:row;flex-wrap:wrap;}
  .art-side > *{flex:1 1 280px;}
  .rel-grid{grid-template-columns:repeat(2,1fr);}
  .check-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header-actions .btn{display:none;}
  .mobile-drawer{display:block;}
}
@media screen and (max-width:640px){
  :root{--sec:56px;}
  body{font-size:16px;}
  .rl-container{padding:0 18px;}
  .art-hero-inner{padding:26px 0 34px;}
  .art-hero h1{font-size:30px;}
  .art-hero h1{max-width:none;}
  .art-main{padding:44px 0 var(--sec);}
  .article-body{font-size:16px;}
  .article-body h2{font-size:24px;margin-top:36px;}
  .article-body h3{font-size:19px;}
  .sec-head h2{font-size:24px;}
  .check-grid,.rel-grid,.faq-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .cta-block h2{font-size:24px;}
  .cta-block .cta-inner{padding:52px 0;}
  .cta-actions .btn{width:100%;}
  .sticky-text{font-size:13px;}
  .sticky-inner{flex-wrap:wrap;}
  .sticky-text{width:100%;margin-right:0;}
  .sticky-actions{width:100%;}
  .sticky-actions .btn{flex:1 1 auto;}
  .check-note{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category1 */
:root{
  --brand:#6C3BFF;
  --brand-hover:#7D51FF;
  --brand-soft:rgba(108,59,255,.12);
  --brand-line:rgba(108,59,255,.40);
  --accent:#16E0B8;
  --spark:#FF6A3D;
  --base:#0F0A1E;
  --panel:#181031;
  --panel-2:#1E1640;
  --surface:#F7F5FC;
  --white:#FFFFFF;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --line-light:rgba(20,16,42,.08);
  --text:#FFFFFF;
  --text-2:#B7AECF;
  --ink:#14102A;
  --ink-2:#5B5570;
  --ok:#1FBF75;
  --warn:#FFB020;
  --err:#FF4D4F;
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --r-pill:999px;
  --sh-dark:0 18px 40px -20px rgba(0,0,0,.45);
  --sh-light:0 12px 30px -18px rgba(20,16,42,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  background:var(--base);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  font-weight:400;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img)}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-hover)}
h1,h2,h3,h4,h5{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.25}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit}
table{border-collapse:collapse}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
::selection{background:rgba(108,59,255,.35);color:#fff}

/* ---------- 容器 ---------- */
.rl-container{width:100%;max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px}

/* ---------- 顶部微提示条 ---------- */
.top-notice{background:var(--panel-2);border-bottom:1px solid var(--line)}
.top-notice-inner{display:flex;align-items:center;gap:10px;min-height:38px;padding-top:6px;padding-bottom:6px}
.top-notice .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);flex:0 0 7px;box-shadow:0 0 0 4px rgba(22,224,184,.14)}
.top-notice p{margin:0;font-size:13px;line-height:1.6;color:var(--text-2);flex:1 1 auto;min-width:0}
.top-notice-close{flex:0 0 auto;width:28px;height:28px;line-height:1;border-radius:8px;border:1px solid var(--line);background:transparent;color:var(--text-2);cursor:pointer;font-size:16px;transition:.2s var(--ease)}
.top-notice-close:hover{color:#fff;border-color:var(--brand-line);background:var(--brand-soft)}
.top-notice.is-hidden{display:none}

/* ---------- 吸顶导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(15,10,30,.74);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease)}
.site-header.is-scrolled{background:rgba(15,10,30,.97);border-bottom-color:var(--line);box-shadow:0 16px 34px -26px rgba(0,0,0,.95)}
.nav-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;letter-spacing:-.01em;flex:0 0 auto}
.brand:hover{color:#fff}
.brand-mark{width:22px;height:22px;border-radius:7px;background:linear-gradient(135deg,var(--brand) 0%,var(--accent) 100%);box-shadow:inset 0 0 0 1px rgba(255,255,255,.22);flex:0 0 22px}
.brand-text{white-space:nowrap}
.main-nav{margin-left:auto}
.main-nav ul{display:flex;align-items:center;gap:4px}
.main-nav a{position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;border-radius:8px;color:var(--text-2);font-size:15px;font-weight:500;white-space:nowrap;transition:.2s var(--ease)}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.06)}
.main-nav a.is-active{color:#fff}
.main-nav a.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:-4px;height:2px;border-radius:2px;background:var(--brand)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.03);cursor:pointer;padding:0;position:relative}
.nav-toggle span{position:absolute;left:12px;right:12px;height:2px;border-radius:2px;background:#fff;transition:.22s var(--ease)}
.nav-toggle span:nth-child(1){top:15px}
.nav-toggle span:nth-child(2){top:21px}
.nav-toggle span:nth-child(3){top:27px}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{position:fixed;inset:0;z-index:600;background:rgba(15,10,30,.99);padding:18px;display:none;flex-direction:column}
.mobile-drawer.is-open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;min-height:44px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.drawer-close{width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:transparent;color:#fff;font-size:20px;line-height:1;cursor:pointer}
.drawer-close:hover{border-color:var(--brand-line);background:var(--brand-soft)}
.drawer-nav{margin:18px 0 0;display:flex;flex-direction:column;gap:6px}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;min-height:52px;padding:0 16px;border-radius:12px;border:1px solid var(--line);color:var(--text-2);font-size:16px;font-weight:500}
.drawer-nav a:hover{color:#fff;border-color:var(--brand-line);background:var(--brand-soft)}
.drawer-nav a.is-active{color:#fff;border-color:var(--brand-line);background:var(--brand-soft)}
.drawer-foot{margin-top:auto;padding-top:20px;display:flex;flex-direction:column;gap:10px}
body.drawer-open{overflow:hidden}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:transform .2s var(--ease),background-color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 14px 30px -18px rgba(108,59,255,.95)}
.btn-primary:hover{background:var(--brand-hover);color:#fff;transform:translateY(-2px);box-shadow:0 22px 38px -18px rgba(108,59,255,1)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:#fff;border-color:var(--brand-line)}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:#fff;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{background:#fff;color:var(--ink);border-color:var(--line-light)}
.btn-light:hover{background:#fff;color:var(--ink);transform:translateY(-2px);box-shadow:var(--sh-light)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn-text{height:auto;padding:0;border:0;background:none;color:var(--brand);font-weight:600;text-decoration:underline;text-underline-offset:4px}
.btn-text:hover{color:var(--brand-hover)}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:12.5px;font-weight:600;line-height:1;background:var(--brand-soft);color:#C6B4FF;border:1px solid rgba(108,59,255,.28)}
.badge-accent{background:rgba(22,224,184,.12);color:#6DF0D5;border-color:rgba(22,224,184,.28)}
.badge-spark{background:rgba(255,106,61,.14);color:#FFB69B;border-color:rgba(255,106,61,.30)}
.badge-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px rgba(22,224,184,.16)}

/* ---------- 分类页页头 ---------- */
.cat-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);background-image:linear-gradient(rgba(15,10,30,.80),rgba(15,10,30,.92)),url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;background-repeat:no-repeat}
.cat-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:34px 34px;pointer-events:none}
.cat-hero::after{content:"";position:absolute;width:520px;height:520px;right:-140px;top:-200px;border-radius:50%;background:radial-gradient(circle,rgba(108,59,255,.42),transparent 68%);filter:blur(14px);pointer-events:none}
.cat-hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:32px;padding-top:56px;padding-bottom:52px}
.breadcrumb{margin-bottom:20px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-2)}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:rgba(255,255,255,.28)}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:#fff}
.breadcrumb li[aria-current="page"]{color:rgba(255,255,255,.72)}
.cat-hero h1{font-size:46px;line-height:1.15;max-width:16em}
.cat-hero-sub{margin:16px 0 0;font-size:17px;color:var(--text-2);max-width:34em}
.cat-hero-badge{display:flex;flex-direction:column;gap:10px;padding:20px 22px;border-radius:var(--r-card);border:1px solid var(--line-strong);background:rgba(24,16,49,.72);min-width:196px;box-shadow:var(--sh-dark)}
.cat-hero-badge .badge-line{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:#fff}
.cat-hero-badge em{font-style:normal;font-size:12.5px;color:var(--text-2);letter-spacing:.02em}

/* ---------- 主体布局 ---------- */
.cat-wrap{display:grid;grid-template-columns:216px minmax(0,1fr);gap:48px;padding-top:64px;padding-bottom:104px;align-items:start}
.cat-aside{position:sticky;top:104px}
.aside-title{margin:0 0 14px;font-size:12.5px;letter-spacing:.08em;color:var(--text-2);text-transform:uppercase}
.aside-nav{display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line);padding-left:2px}
.aside-nav a{position:relative;display:block;padding:9px 12px 9px 16px;font-size:14.5px;color:var(--text-2);border-radius:0 8px 8px 0;transition:.2s var(--ease)}
.aside-nav a::before{content:"";position:absolute;left:-2px;top:8px;bottom:8px;width:2px;border-radius:2px;background:transparent;transition:.2s var(--ease)}
.aside-nav a:hover{color:#fff;background:rgba(255,255,255,.04)}
.aside-nav a.is-active{color:#fff;background:rgba(108,59,255,.10)}
.aside-nav a.is-active::before{background:var(--brand)}
.aside-tip{margin-top:24px;padding:16px;border-radius:12px;border:1px dashed var(--line-strong);font-size:13px;line-height:1.7;color:var(--text-2)}

.cat-main{min-width:0;display:flex;flex-direction:column;gap:28px}
.cat-block{border-radius:20px;padding:40px}
.block-dark{background:var(--panel);border:1px solid var(--line);box-shadow:var(--sh-dark)}
.block-light{background:var(--surface);border:1px solid var(--line-light);color:var(--ink);box-shadow:var(--sh-light)}
.block-head{margin-bottom:28px;max-width:52em}
.cat-block h2{font-size:30px;line-height:1.28}
.block-light h2{color:var(--ink)}
.cat-block h3{font-size:22px;line-height:1.35}
.block-lead{margin:14px 0 0;font-size:15.5px;color:var(--text-2)}
.block-light .block-lead{color:var(--ink-2)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;letter-spacing:.06em;color:#C6B4FF;margin-bottom:12px}
.block-light .eyebrow{color:#5C3BD6}

/* 两栏文字 */
.two-col{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
.two-col p{font-size:16px;color:var(--text-2);line-height:1.9}
.block-light .two-col p{color:var(--ink-2)}

/* 图文核查区 */
.scene-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:36px;align-items:center}
.scene-media{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line-strong);background:var(--panel-2)}
.scene-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.scene-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,10,30,0) 45%,rgba(15,10,30,.62) 100%);pointer-events:none}
.media-tag{position:absolute;left:16px;bottom:14px;z-index:2;display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:var(--r-pill);background:rgba(15,10,30,.78);border:1px solid var(--line-strong);font-size:12.5px;color:#fff}
.step-list{display:flex;flex-direction:column;gap:0}
.step{display:grid;grid-template-columns:44px minmax(0,1fr);gap:16px;padding:18px 0;position:relative}
.step+.step{border-top:1px dashed var(--line)}
.step-num{font-family:Inter,system-ui,sans-serif;font-variant-numeric:tabular-nums;font-size:14px;font-weight:700;color:var(--accent);letter-spacing:.02em;padding-top:4px}
.step h3{font-size:18px;margin-bottom:6px}
.step p{margin:0;font-size:15px;color:var(--text-2)}

/* 要点卡组 */
.point-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.point-card{background:var(--white);border:1px solid var(--line-light);border-radius:var(--r-card);padding:26px;transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease)}
.point-card:hover{transform:translateY(-3px);border-color:var(--brand-line);box-shadow:var(--sh-light)}
.point-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.point-icon{width:38px;height:38px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;background:var(--brand-soft);border:1px solid rgba(108,59,255,.22);color:#5C3BD6;font-weight:800;font-size:15px;font-family:Inter,system-ui,sans-serif}
.point-card h3{font-size:19px;color:var(--ink);margin-bottom:8px}
.point-card p{margin:0;font-size:15px;color:var(--ink-2)}

/* 对照表 */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-card);background:rgba(255,255,255,.015)}
.table-wrap table{width:100%;min-width:720px;font-size:15px}
.table-wrap thead th{background:rgba(255,255,255,.05);color:#fff;font-weight:600;text-align:left;padding:15px 18px;border-bottom:1px solid var(--line);white-space:nowrap;font-size:14.5px}
.table-wrap tbody td{padding:15px 18px;border-bottom:1px solid var(--line);color:var(--text-2);vertical-align:top}
.table-wrap tbody tr:last-child td{border-bottom:0}
.table-wrap tbody td:first-child{color:#fff;font-weight:600;white-space:nowrap}
.table-wrap tbody tr:hover td{background:rgba(255,255,255,.03)}
.table-note{margin:16px 0 0;font-size:13px;color:var(--text-2)}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--white);border:1px solid var(--line-light);border-radius:12px;overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.faq-item:hover{border-color:var(--brand-line)}
.faq-item.is-open{border-color:var(--brand-line);box-shadow:var(--sh-light)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;background:none;border:0;text-align:left;font-size:17px;font-weight:500;color:var(--ink);cursor:pointer;line-height:1.5}
.faq-q span:first-child{flex:1 1 auto}
.faq-sign{position:relative;width:16px;height:16px;flex:0 0 16px}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--brand);border-radius:2px}
.faq-sign::before{left:0;top:7px;width:16px;height:2px}
.faq-sign::after{left:7px;top:0;width:2px;height:16px;transition:transform .2s var(--ease)}
.faq-item.is-open .faq-sign::after{transform:scaleY(0)}
.faq-a{max-height:0;opacity:0;overflow:hidden;padding:0 20px;color:var(--ink-2);font-size:15.5px;transition:max-height .24s var(--ease),opacity .2s var(--ease),padding .2s var(--ease)}
.faq-item.is-open .faq-a{max-height:340px;opacity:1;padding:0 20px 20px}
.faq-a p{margin:0}

/* 内联 CTA */
.inline-cta{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:28px 32px;border-radius:20px;background:linear-gradient(120deg,rgba(108,59,255,.18),rgba(22,224,184,.10));border:1px solid var(--brand-line);box-shadow:var(--sh-dark)}
.inline-cta h2{font-size:24px;line-height:1.35}
.inline-cta p{margin:8px 0 0;font-size:15px;color:var(--text-2)}
.inline-cta-actions{display:flex;gap:12px;flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--base);border-top:1px solid var(--line);padding-top:64px;padding-bottom:88px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{margin:14px 0 18px;font-size:14.5px;color:var(--text-2);max-width:30em}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14.5px;color:var(--text-2)}
.footer-col a:hover{color:#fff}
.static-item{font-size:14.5px;color:var(--text-2)}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px}
.footer-bottom p{margin:0;font-size:13px;color:rgba(183,174,207,.75)}

/* ---------- 吸底转化条 ---------- */
.sticky-cta{position:fixed;left:0;right:0;bottom:0;z-index:50;background:rgba(24,16,49,.97);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-top:1px solid var(--brand);padding-bottom:env(safe-area-inset-bottom)}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px;padding-top:10px;padding-bottom:10px}
.sticky-text{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2);min-width:0}
.sticky-text strong{color:#fff;font-weight:600}
.sticky-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
@media (min-width:1024px){
  .sticky-cta{opacity:0;transform:translateY(100%);pointer-events:none;transition:opacity .28s var(--ease),transform .28s var(--ease)}
  .sticky-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
}

/* ---------- 平板 ---------- */
@media (max-width:1023px){
  .main-nav{display:none}
  .nav-actions .btn{display:none}
  .nav-toggle{display:block}
  .cat-hero h1{font-size:36px}
  .cat-wrap{grid-template-columns:minmax(0,1fr);gap:28px;padding-top:40px;padding-bottom:80px}
  .cat-aside{position:static}
  .aside-title{display:none}
  .aside-nav{flex-direction:row;gap:10px;border-left:0;padding-left:0;overflow-x:auto;padding-bottom:6px;-webkit-overflow-scrolling:touch}
  .aside-nav a{padding:9px 16px;border-radius:var(--r-pill);border:1px solid var(--line);white-space:nowrap;font-size:14px}
  .aside-nav a::before{display:none}
  .aside-nav a.is-active{border-color:var(--brand-line);background:var(--brand-soft)}
  .aside-tip{display:none}
  .cat-block{padding:32px}
  .cat-block h2{font-size:26px}
  .scene-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}

/* ---------- 手机 ---------- */
@media (max-width:639px){
  .rl-container{padding-left:18px;padding-right:18px}
  .nav-inner{height:60px}
  .brand{font-size:16px}
  .cat-hero-inner{grid-template-columns:minmax(0,1fr);gap:22px;padding-top:36px;padding-bottom:34px}
  .cat-hero h1{font-size:31px}
  .cat-hero-sub{font-size:15.5px}
  .cat-hero-badge{min-width:0;padding:16px 18px}
  .cat-block{padding:22px 18px;border-radius:16px}
  .cat-block h2{font-size:23px}
  .cat-block h3{font-size:18px}
  .two-col{grid-template-columns:minmax(0,1fr);gap:20px}
  .point-grid{grid-template-columns:minmax(0,1fr);gap:14px}
  .point-card{padding:20px}
  .step{grid-template-columns:34px minmax(0,1fr);gap:12px}
  .inline-cta{flex-direction:column;align-items:stretch;padding:24px 20px;gap:18px}
  .inline-cta-actions{flex-direction:column}
  .inline-cta-actions .btn{width:100%}
  .faq-q{font-size:16px;padding:16px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-bottom{flex-direction:column}
  .sticky-text{font-size:13px}
  .sticky-actions .btn-ghost{display:none}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --brand:#6C3BFF;
  --brand-strong:#5A2EE6;
  --brand-soft:rgba(108,59,255,.12);
  --brand-line:rgba(108,59,255,.40);
  --accent:#16E0B8;
  --accent-soft:rgba(22,224,184,.12);
  --spark:#FF6A3D;
  --base:#0F0A1E;
  --surface:#181031;
  --surface-2:#1F1640;
  --line-dark:rgba(255,255,255,.08);
  --line-dark-strong:rgba(255,255,255,.16);
  --light-bg:#F7F5FC;
  --light-card:#FFFFFF;
  --line-light:rgba(20,16,42,.08);
  --t-main:#FFFFFF;
  --t-sub:#B7AECF;
  --t-dark:#14102A;
  --t-dark-sub:#5B5570;
  --ok:#1FBF75;
  --warn:#FFB020;
  --err:#FF4D4F;
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --r-pill:999px;
  --shadow-dark:0 18px 40px -20px rgba(0,0,0,.45);
  --shadow-light:0 12px 30px -18px rgba(20,16,42,.10);
  --sec-pad:104px;
  --container:1200px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.8;
  color:var(--t-main);
  background:var(--base);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img);}
a{color:var(--brand);text-decoration:none;transition:color .2s ease-out,opacity .2s ease-out;}
a:hover{color:var(--accent);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.25;}
p{margin:0;}
figure,blockquote{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.skip-link{
  position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;
  padding:10px 18px;border-radius:0 0 var(--r-btn) 0;z-index:999;
}
.skip-link:focus{left:0;color:#fff;}

.rl-container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease-out,background-color .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out,color .2s ease-out;
  white-space:nowrap;
}
.btn-primary{
  background:var(--brand);color:#fff;
  box-shadow:0 12px 26px -14px rgba(108,59,255,.85);
}
.btn-primary:hover{background:#7A4DFF;color:#fff;transform:translateY(-2px);box-shadow:0 18px 32px -14px rgba(108,59,255,.95);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;color:#fff;border-color:var(--brand-line);
}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:#fff;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:42px;padding:0 18px;font-size:14px;border-radius:9px;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none;}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;line-height:1.4;
}
.badge-brand{background:var(--brand-soft);color:#B6A2FF;}
.badge-accent{background:var(--accent-soft);color:var(--accent);}
.badge-spark{background:rgba(255,106,61,.14);color:var(--spark);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:linear-gradient(to bottom,rgba(15,10,30,.90),rgba(15,10,30,.55));
  transition:background-color .24s ease-out,box-shadow .24s ease-out,border-color .24s ease-out,backdrop-filter .24s ease-out;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(15,10,30,.94);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--line-dark);
  box-shadow:0 14px 34px -26px rgba(0,0,0,.9);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:68px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:#fff;font-weight:800;font-size:17px;letter-spacing:-.01em;
  flex-shrink:0;
}
.brand:hover{color:#fff;}
.brand-mark{
  width:26px;height:26px;border-radius:8px;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  box-shadow:0 0 0 1px rgba(255,255,255,.14) inset;
  position:relative;flex-shrink:0;
}
.brand-mark::after{
  content:"";position:absolute;inset:8px;border-radius:4px;
  border:2px solid rgba(15,10,30,.75);
}
.brand-text{white-space:nowrap;}
.nav-panel{
  display:flex;align-items:center;gap:24px;
  margin-left:auto;
}
.main-nav ul{display:flex;align-items:center;gap:6px;}
.main-nav a{
  position:relative;display:inline-block;
  padding:10px 14px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--t-sub);
  transition:color .2s ease-out,background-color .2s ease-out;
}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.05);}
.main-nav a.is-active{color:#fff;}
.main-nav a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;
}
.nav-cta{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  background:rgba(255,255,255,.05);border:1px solid var(--line-dark);
  cursor:pointer;padding:0;align-items:center;justify-content:center;
  flex-direction:column;gap:5px;flex-shrink:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .22s ease-out,opacity .22s ease-out;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 页头 ============ */
.page-head{
  position:relative;overflow:hidden;
  background:var(--base);
  padding:56px 0 64px;
  border-bottom:1px solid var(--line-dark);
}
.page-head::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:36px 36px;
  pointer-events:none;
}
.page-head-glow{
  position:absolute;width:620px;height:620px;left:50%;top:-320px;transform:translateX(-50%);
  background:radial-gradient(circle,rgba(108,59,255,.38),rgba(108,59,255,0) 68%);
  filter:blur(20px);pointer-events:none;
}
.page-head-inner{position:relative;text-align:center;max-width:820px;margin:0 auto;}
.breadcrumb{margin-bottom:22px;}
.breadcrumb ol{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:8px;font-size:13px;color:var(--t-sub);}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:rgba(183,174,207,.5);}
.breadcrumb a{color:var(--t-sub);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb [aria-current="page"]{color:#fff;}
.page-head h1{
  font-size:46px;line-height:1.15;margin:18px 0 16px;font-weight:800;
}
.page-head h1 em{font-style:normal;color:var(--accent);}
.page-head-lead{
  font-size:17px;color:var(--t-sub);max-width:640px;margin:0 auto 28px;
}
.page-head-actions{
  display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-bottom:26px;
}
.page-head-meta{
  display:flex;justify-content:center;flex-wrap:wrap;gap:12px 28px;
  font-size:13px;color:var(--t-sub);
}
.page-head-meta li{display:inline-flex;align-items:center;gap:8px;}
.page-head-meta li::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 0 3px rgba(22,224,184,.14);
}

/* ============ 页内 chips 导航 ============ */
.chip-nav{
  background:var(--surface);
  border-bottom:1px solid var(--line-dark);
  position:relative;z-index:5;
}
.chip-row{
  display:flex;gap:10px;overflow-x:auto;padding-top:14px;padding-bottom:14px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.chip-row::-webkit-scrollbar{display:none;}
.chip-row a{
  flex:0 0 auto;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-dark);
  color:var(--t-sub);font-size:13.5px;font-weight:500;
  white-space:nowrap;
  transition:color .2s ease-out,border-color .2s ease-out,background-color .2s ease-out,transform .2s ease-out;
}
.chip-row a:hover{
  color:#fff;border-color:var(--brand-line);background:var(--brand-soft);transform:translateY(-2px);
}
.chip-row a span{color:var(--accent);font-weight:700;font-size:12px;}

/* ============ 通用板块 ============ */
.section{padding:var(--sec-pad) 0;}
.section-dark{background:var(--base);position:relative;}
.section-surface{background:var(--light-bg);color:var(--t-dark);}
.section-surface h2,.section-surface h3{color:var(--t-dark);}
.section-surface p{color:var(--t-dark-sub);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--accent);text-transform:uppercase;margin-bottom:14px;
}
.section-kicker::before{content:"";width:18px;height:1px;background:var(--accent);}
.section-head h2{font-size:32px;margin-bottom:14px;}
.section-head p{font-size:16px;color:var(--t-sub);}
.section-surface .section-head p{color:var(--t-dark-sub);}

/* ============ 时间轴 ============ */
.timeline{position:relative;padding:8px 0 0;}
.timeline::before{
  content:"";position:absolute;left:50%;top:0;bottom:20px;width:2px;
  transform:translateX(-1px);
  background:linear-gradient(to bottom,rgba(108,59,255,.05),rgba(108,59,255,.38) 12%,rgba(108,59,255,.38) 88%,rgba(108,59,255,.05));
}
.tl-item{
  position:relative;width:50%;padding-right:52px;margin-bottom:44px;
}
.tl-item:nth-child(even){margin-left:50%;padding-right:0;padding-left:52px;}
.tl-item:last-child{margin-bottom:0;}
.tl-dot{
  position:absolute;top:20px;width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--surface-2);
  border:1px solid rgba(108,59,255,.5);
  color:var(--accent);font-size:12.5px;font-weight:700;
  font-variant-numeric:tabular-nums;
  z-index:2;
  box-shadow:0 0 0 6px rgba(15,10,30,1),0 0 22px -6px rgba(108,59,255,.8);
}
.tl-item:nth-child(odd) .tl-dot{right:-18px;}
.tl-item:nth-child(even) .tl-dot{left:-18px;}
.tl-card{
  background:var(--surface);
  border:1px solid var(--line-dark);
  border-radius:var(--r-card);
  padding:26px 26px 24px;
  box-shadow:var(--shadow-dark);
  transition:border-color .22s ease-out,transform .22s ease-out;
}
.tl-card:hover{border-color:var(--brand-line);transform:translateY(-3px);}
.tl-card h3{font-size:21px;margin-bottom:10px;}
.tl-card p{font-size:15.5px;color:var(--t-sub);}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tl-figure{margin-top:18px;}
.tl-figure img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--line-dark);
}
.tl-figure figcaption{font-size:12.5px;color:var(--t-sub);margin-top:8px;}

/* ============ 快速检查清单 ============ */
.checklist-grid{margin-top:8px;}
.check-card{
  background:var(--light-card);
  border:1px solid var(--line-light);
  border-radius:var(--r-card);
  padding:22px 22px 20px;
  height:100%;
  box-shadow:var(--shadow-light);
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.check-card:hover{transform:translateY(-3px);border-color:rgba(108,59,255,.45);}
.check-card .check-icon{
  width:36px;height:36px;border-radius:10px;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;margin-bottom:14px;
}
.check-card h3{font-size:17px;margin-bottom:8px;font-weight:700;}
.check-card p{font-size:14px;color:var(--t-dark-sub);}
.checklist-note{
  margin-top:32px;padding:18px 22px;border-radius:var(--r-card);
  background:rgba(108,59,255,.07);
  border:1px solid rgba(108,59,255,.22);
  display:flex;gap:14px;align-items:flex-start;
  font-size:14.5px;color:var(--t-dark-sub);
}
.checklist-note i{color:var(--brand);margin-top:4px;}

/* ============ FAQ ============ */
.faq-section{background:var(--light-card);}
.faq-head{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;margin-bottom:40px;}
.faq-head .section-head{margin-bottom:0;}
.accordion{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;align-items:start;
  background:transparent;border:0;margin:0;
}
.accordion-item{
  background:var(--light-bg) !important;
  border:1px solid var(--line-light);
  border-radius:12px;
  overflow:hidden;
  transition:border-color .22s ease-out,box-shadow .22s ease-out;
}
.accordion-item:hover{border-color:rgba(108,59,255,.35);}
.accordion-item.is-active{border-color:rgba(108,59,255,.45);box-shadow:0 16px 34px -22px rgba(108,59,255,.5);}
.accordion-title{
  position:relative;
  display:block;
  padding:20px 52px 20px 20px !important;
  font-size:16.5px !important;
  font-weight:600 !important;
  color:var(--t-dark) !important;
  border:0 !important;
  background:transparent !important;
  line-height:1.5;
}
.accordion-title::before{
  content:"" !important;
  position:absolute;right:20px;top:50%;
  width:14px;height:2px;margin-top:-1px;
  background:var(--brand);
  transform:none !important;
  font-family:inherit !important;
  transition:transform .2s ease-out,background-color .2s ease-out;
}
.accordion-title::after{
  content:"";position:absolute;right:26px;top:50%;
  width:2px;height:14px;margin-top:-7px;
  background:var(--brand);
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.accordion-item.is-active .accordion-title::after{transform:scaleY(0);opacity:0;}
.accordion-content{
  padding:0 20px 20px !important;
  border:0 !important;
  background:transparent !important;
  color:var(--t-dark-sub) !important;
  font-size:14.5px;
  line-height:1.85;
}

/* ============ 底部转化区 ============ */
.cta-section{
  position:relative;overflow:hidden;
  background:var(--base);
  padding:88px 0;
}
.cta-section .cta-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.18;
}
.cta-section::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,10,30,.92),rgba(15,10,30,.98));
}
.cta-inner{
  position:relative;z-index:2;
  max-width:820px;margin:0 auto;text-align:center;
  background:var(--brand-soft);
  border:1px solid var(--brand-line);
  border-radius:20px;
  padding:52px 40px;
}
.cta-inner h2{font-size:30px;margin-bottom:14px;}
.cta-inner p{color:var(--t-sub);font-size:16px;margin-bottom:28px;}
.cta-actions{display:flex;justify-content:center;align-items:center;gap:18px;flex-wrap:wrap;}
.cta-link{
  font-size:14.5px;color:var(--t-sub);
  border-bottom:1px solid rgba(183,174,207,.45);padding-bottom:2px;
}
.cta-link:hover{color:var(--accent);border-bottom-color:var(--accent);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--base);
  border-top:1px solid var(--line-dark);
  padding:72px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--t-sub);max-width:320px;margin-bottom:18px;}
.footer-col h4{
  font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a,.static-item{
  font-size:14px;color:var(--t-sub);
}
.footer-col a:hover{color:var(--accent);}
.static-item{opacity:.7;cursor:default;}
.footer-bottom{
  margin-top:48px;padding:22px 0 88px;
  border-top:1px solid var(--line-dark);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--t-sub);
}

/* ============ 吸底转化条 ============ */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:110;
  background:rgba(15,10,30,.97);
  border-top:1px solid var(--brand-line);
  backdrop-filter:blur(10px);
  padding:10px 0 calc(10px + env(safe-area-inset-bottom));
  transform:translateY(110%);
  opacity:0;
  transition:transform .26s ease-out,opacity .26s ease-out;
}
.sticky-cta.is-visible{transform:translateY(0);opacity:1;}
.sticky-inner{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:52px;
}
.sticky-text{
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:var(--t-sub);margin:0;
}
.sticky-text .dot{
  width:8px;height:8px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 4px rgba(22,224,184,.14);flex-shrink:0;
}
.sticky-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  :root{--sec-pad:80px;}
  .page-head h1{font-size:36px;}
  .section-head h2{font-size:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .timeline::before{left:18px;}
  .tl-item,.tl-item:nth-child(even){
    width:100%;margin-left:0;padding-left:56px;padding-right:0;
  }
  .tl-item:nth-child(odd) .tl-dot,
  .tl-item:nth-child(even) .tl-dot{left:0;right:auto;}
  .accordion{grid-template-columns:1fr;}
}
@media (max-width:900px){
  .nav-toggle{display:flex;}
  .nav-panel{
    position:fixed;inset:0;z-index:200;
    background:rgba(15,10,30,.985);
    backdrop-filter:blur(14px);
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:8px;
    padding:88px 24px 32px;
    margin-left:0;
    transform:translateX(100%);
    transition:transform .28s ease-out;
    overflow-y:auto;
  }
  body.nav-open .nav-panel{transform:translateX(0);}
  body.nav-open{overflow:hidden;}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:4px;}
  .main-nav a{
    display:block;padding:16px 14px;font-size:17px;border-radius:12px;
    border-bottom:1px solid var(--line-dark);
  }
  .main-nav a.is-active::after{display:none;}
  .main-nav a.is-active{background:var(--brand-soft);color:#fff;}
  .nav-cta{margin-top:20px;flex-direction:column;align-items:stretch;}
  .nav-cta .btn{width:100%;}
  .header-inner{gap:14px;}
  .brand{font-size:16px;}
  .page-head{padding:36px 0 48px;}
  .page-head h1{font-size:31px;}
  .page-head-lead{font-size:16px;}
  .page-head-actions{flex-direction:column;align-items:stretch;}
  .page-head-actions .btn{width:100%;}
  .rl-container{padding:0 18px;}
  .cta-inner{padding:36px 22px;}
  .cta-inner h2{font-size:24px;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .faq-head{flex-direction:column;align-items:flex-start;gap:16px;}
}
@media (max-width:640px){
  :root{--sec-pad:56px;}
  body{font-size:16px;}
  .section-head h2{font-size:24px;}
  .section-head{margin-bottom:28px;}
  .timeline::before{left:15px;}
  .tl-item,.tl-item:nth-child(even){padding-left:48px;margin-bottom:28px;}
  .tl-dot{width:30px;height:30px;font-size:11px;top:18px;}
  .tl-card{padding:20px 18px;border-radius:14px;}
  .tl-card h3{font-size:18.5px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;padding-bottom:104px;}
  .sticky-inner{flex-direction:column;align-items:stretch;gap:10px;}
  .sticky-actions{width:100%;}
  .sticky-actions .btn{flex:1;}
  .sticky-text{font-size:13px;}
  .page-head-meta{gap:10px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}