/* roulang page: index */
:root{
  --ink-900:#121016;
  --ink-700:#2A2635;
  --muted-500:#6C6780;
  --brand-600:#5A2DE0;
  --brand-500:#7A4BFF;
  --accent-400:#B9F227;
  --cta-500:#FF5C39;
  --bg-050:#F6F4FB;
  --bg-000:#FFFFFF;
  --line-200:#E3DFF0;
  --dark-band:#17121F;
  --r-card:18px;
  --r-img:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(18,16,22,.06);
  --sh-2:0 18px 40px -24px rgba(90,45,224,.35);
  --font-cn:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Barlow Semi Condensed","Inter",system-ui,sans-serif;
  --sec-gap:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--bg-000);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--brand-600);text-decoration:none;transition:color .22s ease,background .22s ease}
a:hover{color:var(--brand-500)}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink-900);line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit}
:focus-visible{outline:3px solid var(--accent-400);outline-offset:2px;border-radius:6px}
::selection{background:rgba(122,75,255,.2)}

.container{width:100%;max-width:1296px;margin:0 auto;padding:0 30px}
@media(min-width:640px){.container{padding:0 47px}}

/* ---------- 顶部活动条 ---------- */
.topbar{background:var(--dark-band);color:#EFEAF7}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:34px;padding:4px 0;font-size:13px}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0}
.dot{width:7px;height:7px;border-radius:50%;background:var(--accent-400);box-shadow:0 0 0 3px rgba(185,242,39,.18);flex:none}
.topbar-tag{color:#fff;font-weight:600;white-space:nowrap}
.topbar-note{color:#B6AEC7;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-right{display:flex;align-items:center;gap:12px;flex:none}
.countdown{display:flex;align-items:center;gap:6px;font-family:var(--font-num);font-size:13px;color:#B6AEC7;letter-spacing:.5px}
.countdown b{font-weight:600}
.cd-cell{display:inline-block;min-width:26px;text-align:center;padding:1px 6px;border-radius:6px;background:rgba(185,242,39,.12);color:var(--accent-400);font-weight:700}
.topbar-close{width:22px;height:22px;border-radius:6px;color:#8C849E;font-size:15px;line-height:1;display:grid;place-items:center}
.topbar-close:hover{background:rgba(255,255,255,.1);color:#fff}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--bg-000);border-bottom:1px solid var(--line-200);transition:box-shadow .22s ease}
.site-header.is-scrolled{box-shadow:0 10px 30px -22px rgba(18,16,22,.55)}
.nav-wrap{display:flex;align-items:center;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:38px;height:38px;border-radius:11px;background:var(--brand-600);color:#fff;display:grid;place-items:center;font-size:19px;font-weight:700;letter-spacing:-.5px}
.brand-name{display:block;font-size:19px;font-weight:700;color:var(--ink-900);line-height:1.15;letter-spacing:-.3px;white-space:nowrap}
.brand-sub{display:block;font-size:11px;letter-spacing:1.6px;color:var(--muted-500);line-height:1.4}
.nav-menu{display:none;align-items:center;gap:2px;flex:1;margin:0 0 0 8px}
.nav-menu a{display:block;padding:7px 13px;border-radius:var(--r-pill);color:var(--ink-700);font-size:15px;font-weight:500;position:relative;white-space:nowrap}
.nav-menu a:hover{background:rgba(122,75,255,.1);color:var(--brand-600)}
.nav-menu a.active{color:var(--brand-600);font-weight:600}
.nav-menu a.active::after{content:"";position:absolute;left:13px;right:13px;bottom:-19px;height:3px;border-radius:3px;background:var(--brand-600)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:none}
.icon-btn{width:40px;height:40px;border-radius:var(--r-pill);border:1px solid var(--line-200);display:grid;place-items:center;color:var(--ink-700);background:var(--bg-000);transition:.22s ease}
.icon-btn:hover{border-color:var(--brand-600);color:var(--brand-600);transform:translateY(-2px)}
.nav-burger{display:grid}
@media(min-width:1080px){
  .nav-menu{display:flex}
  .nav-burger{display:none}
}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(-1px)}
.btn-primary{background:var(--cta-500);color:#fff;box-shadow:0 14px 26px -18px rgba(255,92,57,.85)}
.btn-primary:hover{background:#F04A26;color:#fff;box-shadow:0 18px 34px -20px rgba(255,92,57,.9)}
.btn-ghost{background:transparent;color:var(--ink-900);border-color:var(--line-200)}
.btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-600);background:rgba(122,75,255,.06)}
.btn-purple{background:var(--brand-600);color:#fff}
.btn-purple:hover{background:var(--brand-500);color:#fff}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec-gap) 0}
.section-alt{background:var(--bg-050)}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:1.6px;color:var(--brand-600);font-weight:600;text-transform:uppercase;margin-bottom:12px}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand-600);display:block}
.sec-title{position:relative;padding-left:16px;font-size:28px;letter-spacing:-.3px}
.sec-title::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--brand-600)}
.sec-desc{margin-top:14px;color:var(--ink-700);font-size:16px;max-width:680px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand-600);margin-top:16px}
.link-more:hover{gap:10px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background-image:linear-gradient(180deg,rgba(246,244,251,.97) 0%,rgba(246,244,251,.86) 45%,rgba(255,255,255,.98) 100%),url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;border-bottom:1px solid var(--line-200)}
.hero::after{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(45deg,rgba(18,16,22,.04) 0 1px,transparent 1px 9px);pointer-events:none}
.hero-inner{position:relative;z-index:2;padding:64px 0 56px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:var(--r-pill);background:rgba(90,45,224,.09);color:var(--brand-600);font-size:12.5px;font-weight:600;letter-spacing:.6px;margin-bottom:20px}
.hero h1{font-size:34px;line-height:1.25;letter-spacing:-.6px;max-width:620px}
.hero-desc{margin-top:20px;font-size:17px;color:var(--ink-700);max-width:600px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-media{margin-top:36px;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line-200);box-shadow:var(--sh-2);background:var(--bg-000)}
.hero-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.stats{margin-top:40px;border-top:1px solid var(--line-200);padding-top:26px}
.stat{padding:10px 0}
.stat b{display:block;font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--ink-900);letter-spacing:-.5px;line-height:1.1}
.stat span{display:block;font-size:13px;color:var(--muted-500);margin-top:4px}
@media(min-width:900px){
  .hero-inner{padding:86px 0 78px}
  .hero h1{font-size:40px}
  .hero-cols{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
  .hero-media{margin-top:0}
}

/* ---------- 功能分组 ---------- */
.feature-lg,.feature-sm{background:var(--bg-000);border:1px solid var(--line-200);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;height:100%;overflow:hidden}
.feature-lg:hover,.feature-sm:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(90,45,224,.35)}
.feature-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.feature-body{padding:26px}
.feature-sm{display:flex;gap:16px;padding:22px;align-items:flex-start}
.feature-ico{width:44px;height:44px;flex:none;border-radius:12px;background:rgba(122,75,255,.1);color:var(--brand-600);display:grid;place-items:center}
.feature-sm h3{font-size:18px;margin-bottom:8px}
.feature-lg h3{font-size:22px;margin-bottom:14px}
.feature-text{color:var(--ink-700);font-size:15px}
.tick-list{margin-top:14px}
.tick-list li{position:relative;padding:6px 0 6px 26px;color:var(--ink-700);font-size:15px}
.tick-list li::before{content:"";position:absolute;left:2px;top:15px;width:12px;height:7px;border-left:2px solid var(--brand-600);border-bottom:2px solid var(--brand-600);transform:rotate(-45deg)}
.feature-side{margin-top:0}
.feature-side .cell{margin-bottom:0}
.side-stack{display:grid;gap:20px;height:100%}

/* ---------- 使用场景 ---------- */
.scene-card{position:relative;background:var(--bg-000);border:1px solid var(--line-200);border-radius:var(--r-card);padding:28px 26px;height:100%;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.scene-accent{border-top:4px solid var(--accent-400)}
.scene-card h3{font-size:19px;margin-bottom:10px}
.scene-card p{color:var(--ink-700);font-size:15px}
.scene-steps{margin-top:20px;display:grid;gap:10px}
.scene-steps li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--ink-700)}
.step-dot{width:22px;height:22px;flex:none;border-radius:50%;border:1px solid var(--brand-600);color:var(--brand-600);font-family:var(--font-num);font-size:12.5px;font-weight:700;display:grid;place-items:center;margin-top:3px}

/* ---------- 案例与引述 ---------- */
.case-media{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line-200);box-shadow:var(--sh-1)}
.case-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.quote{position:relative;padding-left:20px;border-left:4px solid var(--brand-600)}
.quote p{font-size:18px;line-height:1.8;color:var(--ink-900)}
.quote footer{margin-top:16px;font-size:14px;color:var(--muted-500)}

/* ---------- 方案 ---------- */
.plan{background:var(--bg-000);border:1px solid var(--line-200);border-radius:var(--r-card);padding:30px 26px;height:100%;display:flex;flex-direction:column;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease}
.plan:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.plan-featured{border:2px solid var(--brand-600);transform:translateY(-12px)}
.plan-featured:hover{transform:translateY(-16px)}
.plan-head{display:flex;align-items:center;justify-content:space-between;gap:10px}
.plan h3{font-size:19px}
.plan-num{font-family:var(--font-num);font-size:34px;font-weight:700;color:var(--ink-900);letter-spacing:-.6px;margin:16px 0 4px}
.plan-num em{font-style:normal;font-size:15px;font-family:var(--font-cn);color:var(--muted-500);font-weight:500;margin-left:6px}
.plan p.plan-note{color:var(--muted-500);font-size:14px}
.plan .tick-list{flex:1}
.plan .btn{margin-top:22px}
.pill{display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:var(--r-pill);font-size:11px;letter-spacing:1px;font-weight:600}
.pill-lime{background:var(--accent-400);color:var(--ink-900)}
.pill-purple{border:1px solid var(--brand-600);color:var(--brand-600)}
.pill-mute{background:#EDEBF3;color:var(--muted-500)}

/* ---------- 内容卡片 ---------- */
.post-card{display:flex;flex-direction:column;height:100%;background:var(--bg-000);border:1px solid var(--line-200);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(90,45,224,.35)}
.post-title{font-size:18px;line-height:1.45;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-excerpt{color:var(--ink-700);font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:18px;font-size:13px;color:var(--muted-500)}
.post-foot .pill{height:22px}
.post-time{font-family:var(--font-num);letter-spacing:.4px}
.post-more{margin-left:auto;color:var(--brand-600);font-weight:600}
.empty-state{border:1px dashed var(--line-200);border-radius:var(--r-card);background:var(--bg-050);padding:52px 26px;text-align:center}
.empty-state .empty-ico{width:52px;height:52px;margin:0 auto 16px;border-radius:14px;background:rgba(122,75,255,.1);color:var(--brand-600);display:grid;place-items:center}
.empty-state p{color:var(--ink-700);margin-bottom:20px}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line-200)}
.faq-item{border-bottom:1px solid var(--line-200)}
.faq-q{display:flex;align-items:center;gap:14px;width:100%;min-height:56px;padding:12px 0;text-align:left}
.faq-num{flex:none;min-width:38px;height:24px;border-radius:var(--r-pill);border:1px solid var(--brand-600);color:var(--brand-600);font-family:var(--font-num);font-size:12.5px;font-weight:700;display:grid;place-items:center}
.faq-text{font-size:16.5px;font-weight:600;color:var(--ink-900);flex:1}
.faq-sign{position:relative;width:16px;height:16px;flex:none}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--brand-600);border-radius:2px;transition:transform .22s ease}
.faq-sign::before{left:0;right:0;top:7px;height:2px}
.faq-sign::after{top:0;bottom:0;left:7px;width:2px}
.faq-item.open .faq-sign::after{transform:scaleY(0)}
.faq-a{overflow:hidden;max-height:0;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:340px}
.faq-a-inner{padding:0 0 22px 52px;border-left:2px solid var(--brand-600);margin-left:18px;padding-left:22px}
.faq-a-inner p{color:var(--ink-700);font-size:15.5px}
.faq-a-inner p + p{margin-top:.8em}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--dark-band);border-radius:var(--r-card);padding:28px 30px;display:flex;flex-direction:column;gap:20px;align-items:flex-start}
.cta-band h2{color:#fff;font-size:24px;letter-spacing:-.3px}
.cta-band p{color:#B6AEC7;font-size:15px;margin-top:8px}
@media(min-width:900px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:34px 40px}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark-band);color:#B6AEC7;margin-top:var(--sec-gap);padding-top:64px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--brand-600)}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:#8C849E}
.footer-title{color:#fff;font-size:14px;font-weight:600;letter-spacing:.6px;margin-bottom:14px}
.footer-desc{font-size:14px;line-height:1.8}
.footer-links li{line-height:34px}
.footer-links a{color:#B6AEC7;font-size:14.5px}
.footer-links a:hover{color:var(--accent-400)}
.socials{display:flex;gap:10px;margin-top:18px}
.socials a{width:36px;height:36px;border-radius:10px;border:1px solid rgba(255,255,255,.16);display:grid;place-items:center;color:#B6AEC7}
.socials a:hover{border-color:var(--accent-400);color:var(--accent-400)}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#8C849E}

/* ---------- 移动端抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(18,16,22,.55);opacity:0;visibility:hidden;transition:.25s ease;z-index:80}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);background:var(--bg-000);z-index:90;transform:translateX(102%);transition:transform .28s ease;display:flex;flex-direction:column;padding:20px}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}
body.drawer-open .drawer{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-nav a{display:flex;align-items:center;height:48px;border-bottom:1px solid var(--line-200);color:var(--ink-700);font-size:16px;font-weight:500}
.drawer-nav a.active{color:var(--brand-600);font-weight:600}
.drawer-foot{margin-top:auto}

@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}
@media(max-width:1023px){
  :root{--sec-gap:64px}
  .plan-featured{transform:none}
  .plan-featured:hover{transform:translateY(-4px)}
  .feature-side{margin-top:20px}
}
@media(max-width:640px){
  :root{--sec-gap:56px}
  body{font-size:16px}
  .hero h1{font-size:29px}
  .sec-title{font-size:23px}
  .hero-actions .btn{width:100%;height:48px}
  .countdown .cd-day{display:none}
  .brand-name{font-size:17px}
  .brand-sub{font-size:10px;letter-spacing:1px}
  .feature-body{padding:22px}
  .stat b{font-size:26px}
}

/* roulang page: category1 */
:root{
  --ink-900:#121016;
  --ink-700:#2A2635;
  --muted-500:#6C6780;
  --brand-600:#5A2DE0;
  --brand-500:#7A4BFF;
  --accent-400:#B9F227;
  --cta-500:#FF5C39;
  --bg-050:#F6F4FB;
  --bg-000:#FFFFFF;
  --line-200:#E3DFF0;
  --dark-band:#17121F;
  --font-cn:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Barlow Semi Condensed","Inter",system-ui,sans-serif;
  --radius-card:18px;
  --radius-img:16px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(18,16,22,.06);
  --shadow-hover:0 18px 40px -24px rgba(90,45,224,.35);
  --section:96px;
  --section-m:56px;
}
*,*::before,*::after{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--bg-000);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease,transform .22s ease;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid var(--accent-400);outline-offset:2px;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink-900);}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.5px;}
.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%;}
@media (min-width:1280px){.container{max-width:1280px;}}
.section{padding:var(--section) 0;}
.section-tint{background:var(--bg-050);}
.section-title{
  position:relative;
  font-size:28px;
  line-height:1.3;
  padding-left:16px;
  margin-bottom:14px;
}
.section-title::before{
  content:"";
  position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:2px;
  background:var(--brand-600);
}
.section-desc{color:var(--muted-500);font-size:15.5px;max-width:720px;margin-bottom:36px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:1px;color:var(--brand-600);
  background:rgba(90,45,224,.07);
  border:1px solid rgba(90,45,224,.18);
  border-radius:999px;padding:4px 12px;margin-bottom:16px;
}
/* ---------- 活动条 ---------- */
.activity-bar{background:var(--dark-band);color:#fff;height:32px;display:flex;align-items:center;font-size:12.5px;}
.act-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:32px;}
.act-left{display:flex;align-items:center;gap:10px;min-width:0;}
.dot-live{width:8px;height:8px;border-radius:50%;background:var(--accent-400);flex:0 0 auto;box-shadow:0 0 0 3px rgba(185,242,39,.18);}
.act-tag{background:var(--accent-400);color:var(--ink-900);font-size:11px;letter-spacing:1px;height:20px;line-height:20px;padding:0 9px;border-radius:999px;font-weight:700;flex:0 0 auto;}
.act-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:rgba(255,255,255,.82);}
.act-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.act-label{color:rgba(255,255,255,.6);}
.countdown{display:flex;align-items:center;gap:4px;}
.cd-pill{
  font-family:var(--font-num);font-size:12.5px;line-height:1;padding:4px 6px;border-radius:999px;
  background:rgba(185,242,39,.14);color:var(--accent-400);min-width:24px;text-align:center;
}
.cd-unit{color:rgba(255,255,255,.55);font-size:11px;margin-right:2px;}
.act-close{color:rgba(255,255,255,.6);font-size:16px;line-height:1;padding:4px 6px;border-radius:6px;}
.act-close:hover{color:#fff;background:rgba(255,255,255,.1);}
/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--bg-000);
  border-bottom:1px solid var(--line-200);transition:box-shadow .22s ease;
}
.site-header.is-stuck{box-shadow:0 6px 24px -18px rgba(18,16,22,.5);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--brand-600);color:#fff;
  font-size:17px;font-weight:700;display:flex;align-items:center;justify-content:center;
  clip-path:polygon(0 0,100% 0,100% 74%,74% 100%,0 100%);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:20px;font-weight:700;letter-spacing:-.3px;color:var(--ink-900);}
.brand-sub{font-size:11px;letter-spacing:2px;color:var(--muted-500);}
.nav-menu{display:flex;align-items:center;gap:2px;}
.nav-menu a{
  position:relative;font-size:15px;color:var(--ink-700);
  padding:9px 12px;border-radius:999px;white-space:nowrap;
}
.nav-menu a:hover{background:rgba(90,45,224,.08);color:var(--brand-600);}
.nav-menu a.active{color:var(--brand-600);font-weight:600;}
.nav-menu a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:3px;border-radius:2px;background:var(--brand-600);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line-200);
  display:flex;align-items:center;justify-content:center;color:var(--ink-700);background:var(--bg-000);
}
.icon-btn:hover{background:rgba(90,45,224,.08);color:var(--brand-600);border-color:rgba(90,45,224,.3);transform:translateY(-2px);}
.nav-burger{display:none;}
/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,color .22s ease,border-color .22s ease;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--cta-500);color:#fff;box-shadow:0 10px 24px -16px rgba(255,92,57,.9);}
.btn-primary:hover{background:#ff4a24;transform:translateY(-2px);box-shadow:0 16px 32px -18px rgba(255,92,57,.95);color:#fff;}
.btn-ghost{background:transparent;color:var(--brand-600);border-color:rgba(90,45,224,.35);}
.btn-ghost:hover{background:rgba(90,45,224,.07);border-color:var(--brand-600);transform:translateY(-2px);color:var(--brand-600);}
.btn-dark{background:var(--dark-band);color:#fff;}
.btn-dark:hover{background:#241c30;transform:translateY(-2px);color:#fff;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
/* ---------- Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;background:var(--bg-050);
  padding:64px 0 70px;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(246,244,251,.96) 0%,rgba(246,244,251,.78) 55%,rgba(246,244,251,.95) 100%);
  z-index:1;
}
.cat-hero .hero-bg{
  position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.5;
}
.cat-hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}
.hero-h1{font-size:40px;line-height:1.25;letter-spacing:-.5px;margin-bottom:16px;}
.hero-h1 em{font-style:normal;color:var(--brand-600);}
.hero-sub{font-size:17px;color:var(--ink-700);max-width:560px;margin-bottom:26px;}
.hero-btns{display:flex;gap:12px;flex-wrap:wrap;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted-500);margin-bottom:20px;}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{color:var(--line-200);}
.version-card{
  background:var(--bg-000);border:1px solid var(--line-200);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-1);
}
.version-card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;}
.version-no{font-family:var(--font-num);font-size:30px;font-weight:700;letter-spacing:.5px;color:var(--ink-900);}
.version-list{border-top:1px solid var(--line-200);padding-top:16px;margin-bottom:20px;}
.version-list li{display:flex;align-items:center;justify-content:space-between;padding:7px 0;font-size:14.5px;color:var(--ink-700);border-bottom:1px dashed var(--line-200);}
.version-list li:last-child{border-bottom:0;}
.version-list b{font-weight:600;color:var(--ink-900);}
/* ---------- 状态标签 ---------- */
.badge{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;
  font-size:11px;letter-spacing:1px;font-weight:600;line-height:1;white-space:nowrap;
}
.badge-live{background:var(--accent-400);color:var(--ink-900);}
.badge-soon{background:transparent;color:var(--brand-600);border:1px solid var(--brand-600);}
.badge-done{background:#EFEDF5;color:var(--muted-500);}
.badge-plain{background:rgba(90,45,224,.08);color:var(--brand-600);}
/* ---------- 版本卡片列表 ---------- */
.ver-card{
  background:var(--bg-000);border:1px solid var(--line-200);border-radius:var(--radius-card);
  padding:24px;height:100%;display:flex;flex-direction:column;
  box-shadow:var(--shadow-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.ver-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(90,45,224,.28);}
.ver-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;}
.ver-no{font-family:var(--font-num);font-size:24px;font-weight:700;letter-spacing:.5px;}
.ver-meta{display:flex;flex-direction:column;gap:0;margin-bottom:14px;}
.ver-meta li{display:flex;align-items:center;justify-content:space-between;font-size:14px;color:var(--muted-500);padding:6px 0;border-bottom:1px dashed var(--line-200);}
.ver-meta li:last-child{border-bottom:0;}
.ver-meta b{font-weight:600;color:var(--ink-900);}
.ver-notes{margin-bottom:20px;}
.ver-notes li{
  position:relative;padding:5px 0 5px 18px;font-size:14.5px;color:var(--ink-700);line-height:1.7;
}
.ver-notes li::before{
  content:"";position:absolute;left:2px;top:14px;width:6px;height:6px;border-radius:50%;
  background:var(--brand-500);
}
.ver-card .btn{margin-top:auto;}
/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-left:28px;}
.timeline::before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:1px;background:var(--line-200);}
.tl-item{position:relative;padding:0 0 26px 0;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;left:-28px;top:6px;width:13px;height:13px;border-radius:50%;
  background:var(--bg-000);border:2px solid var(--brand-600);
}
.tl-item:first-child .tl-dot{background:var(--accent-400);border-color:var(--accent-400);}
.tl-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:4px;}
.tl-head b{font-family:var(--font-num);font-size:17px;font-weight:700;}
.tl-date{font-family:var(--font-num);font-size:14px;color:var(--muted-500);}
.tl-body p{font-size:14.5px;color:var(--ink-700);}
/* ---------- 步骤条 ---------- */
.step-list{display:flex;flex-direction:column;gap:16px;}
.step-item{
  display:flex;gap:16px;align-items:flex-start;
  border:1px solid var(--line-200);border-radius:14px;padding:18px 20px;background:var(--bg-000);
  transition:border-color .22s ease,transform .22s ease;
}
.step-item:hover{border-color:rgba(90,45,224,.3);transform:translateY(-2px);}
.step-no{
  font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--brand-600);
  min-width:42px;line-height:1.2;
}
.step-body h3{font-size:17px;margin-bottom:4px;}
.step-body p{font-size:14.5px;color:var(--muted-500);}
.figure-block{border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line-200);box-shadow:var(--shadow-1);}
.figure-block img{width:100%;aspect-ratio:4/3;object-fit:cover;}
/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{border:1px solid var(--line-200);border-radius:14px;background:var(--bg-000);overflow:hidden;transition:border-color .22s ease;}
.faq-item.is-open{border-color:rgba(90,45,224,.35);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;min-height:56px;
  padding:10px 20px;text-align:left;font-size:16.5px;font-weight:600;color:var(--ink-900);
}
.faq-q:hover{color:var(--brand-600);}
.faq-idx{
  flex:0 0 auto;width:34px;height:22px;border-radius:999px;border:1px solid var(--brand-600);
  color:var(--brand-600);font-family:var(--font-num);font-size:12px;letter-spacing:1px;
  display:flex;align-items:center;justify-content:center;
}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-item.is-open .faq-a{max-height:340px;}
.faq-a-inner{
  margin:0 20px 18px 68px;padding-left:14px;border-left:2px solid var(--brand-600);
  color:var(--ink-700);font-size:15.5px;
}
.faq-a-inner p+p{margin-top:8px;}
/* ---------- CTA 带 ---------- */
.cta-band{background:var(--bg-050);border-top:1px solid var(--line-200);border-bottom:1px solid var(--line-200);padding:34px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;}
.cta-title{font-size:24px;line-height:1.35;margin-bottom:6px;}
.cta-desc{font-size:14.5px;color:var(--muted-500);}
/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark-band);color:rgba(255,255,255,.72);padding:64px 0 26px;font-size:14.5px;}
.footer-grid{row-gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:var(--brand-500);}
.footer-brand .brand-name{color:#fff;font-size:19px;}
.footer-brand .brand-sub{color:rgba(255,255,255,.5);}
.footer-about{font-size:14px;color:rgba(255,255,255,.62);max-width:300px;margin-bottom:18px;}
.social-row{display:flex;gap:10px;}
.social-row a{
  width:34px;height:34px;border-radius:10px;border:1px solid rgba(255,255,255,.18);
  display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.75);font-size:12px;
}
.social-row a:hover{color:var(--accent-400);border-color:var(--accent-400);}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px;}
.footer-links li{line-height:34px;}
.footer-links a{color:rgba(255,255,255,.68);font-size:14px;}
.footer-links a:hover{color:var(--accent-400);}
.footer-contact li{line-height:30px;color:rgba(255,255,255,.68);font-size:14px;}
.footer-contact b{color:#fff;font-weight:600;}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.45);
}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:var(--accent-400);}
/* ---------- 移动菜单遮罩 ---------- */
.nav-scrim{
  position:fixed;inset:0;background:rgba(18,16,22,.45);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:70;
}
.nav-scrim.is-open{opacity:1;visibility:visible;}
/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .nav-menu{
    position:fixed;top:0;right:0;height:100vh;width:290px;max-width:86vw;background:#fff;
    flex-direction:column;align-items:stretch;gap:4px;padding:88px 16px 24px;
    transform:translateX(100%);transition:transform .26s ease;z-index:80;
    overflow-y:auto;box-shadow:-24px 0 48px -34px rgba(18,16,22,.6);
  }
  .nav-menu.is-open{transform:none;}
  .nav-menu a{height:48px;display:flex;align-items:center;font-size:16px;border-radius:10px;padding:0 14px;}
  .nav-menu a.active::after{display:none;}
  .nav-menu a.active{background:rgba(90,45,224,.1);}
  .nav-burger{display:flex;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-h1{font-size:34px;}
}
@media (max-width:768px){
  .section{padding:var(--section-m) 0;}
  .section-title{font-size:24px;}
  .cat-hero{padding:40px 0 48px;}
  .hero-h1{font-size:28px;}
  .hero-sub{font-size:16px;}
  .hero-btns .btn{width:100%;height:48px;}
  .act-text{display:none;}
  .act-label{display:none;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:16px;}
  .cta-inner .btn{width:100%;height:48px;}
  .footer-grid > [class*="cell"]{flex:0 0 100%;max-width:100%;}
}
@media (max-width:520px){
  .container{padding:0 20px;}
  .brand-sub{display:none;}
  .brand-name{font-size:17px;}
  .nav-actions .btn-primary{display:none;}
  .hero-h1{font-size:25px;letter-spacing:-.2px;}
  .version-no{font-size:24px;}
  .faq-q{font-size:15.5px;padding:10px 16px;}
  .faq-a-inner{margin:0 16px 16px 16px;}
  .cd-pill:first-child,.cd-unit:first-of-type{display:none;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .ver-card:hover,.btn:hover{transform:none;}
}

/* roulang page: article */
:root{
  --ink-900:#121016;
  --ink-700:#2A2635;
  --muted-500:#6C6780;
  --brand-600:#5A2DE0;
  --brand-500:#7A4BFF;
  --accent-400:#B9F227;
  --cta-500:#FF5C39;
  --bg-050:#F6F4FB;
  --bg-000:#FFFFFF;
  --line-200:#E3DFF0;
  --dark-band:#17121F;
  --font-cn:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Barlow Semi Condensed","Inter",system-ui,-apple-system,sans-serif;
  --r-card:18px;
  --r-img:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-input:10px;
  --shadow-1:0 1px 2px rgba(18,16,22,.06);
  --shadow-hover:0 18px 40px -24px rgba(90,45,224,.35);
  --tr:.22s ease;
}
*,*::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:1.85;
  color:var(--ink-700);
  background:var(--bg-000);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-600);text-decoration:none}
a:hover{color:var(--brand-500)}
button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700}
p{margin:0 0 1em}
:focus-visible{outline:3px solid var(--accent-400);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.container{padding:0 32px}}
@media(min-width:1280px){.container{max-width:1280px}}

/* ---- grid fallback（Foundation 之上的定制栅格） ---- */
.grid-x{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px}
.cell{flex:0 0 auto;width:100%;min-width:0;padding-left:12px;padding-right:12px}
@media(min-width:640px){
  .medium-6{width:50%}
}
@media(min-width:1024px){
  .large-3{width:25%}
  .large-4{width:33.3333%}
  .large-5{width:41.6667%}
  .large-6{width:50%}
  .large-7{width:58.3333%}
  .large-8{width:66.6667%}
  .large-9{width:75%}
}

/* ---- 顶部活动条 ---- */
.topbar{background:var(--dark-band);color:#fff;font-size:12.5px;position:relative;z-index:70}
.topbar.hide{display:none}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:14px;height:32px}
.topbar-left{display:flex;align-items:center;gap:9px;min-width:0}
.dot-live{width:8px;height:8px;border-radius:50%;background:var(--accent-400);flex:0 0 auto;box-shadow:0 0 0 3px rgba(185,242,39,.16)}
.topbar-tag{background:var(--accent-400);color:var(--ink-900);font-size:11px;letter-spacing:1px;padding:1px 7px;border-radius:var(--r-pill);font-weight:700}
.topbar-text{color:rgba(255,255,255,.78);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topbar-right{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.count-label{color:rgba(255,255,255,.55);font-size:12px}
.count{display:flex;align-items:center;gap:3px;font-family:var(--font-num)}
.count-pill{background:rgba(255,255,255,.09);color:var(--accent-400);font-weight:600;padding:1px 6px;border-radius:6px;font-variant-numeric:tabular-nums;letter-spacing:.5px}
.count-sep{color:rgba(255,255,255,.4);font-size:12px}
.topbar-close{width:22px;height:22px;line-height:1;border-radius:6px;color:rgba(255,255,255,.6);font-size:16px;display:flex;align-items:center;justify-content:center;transition:var(--tr)}
.topbar-close:hover{background:rgba(255,255,255,.12);color:#fff}

/* ---- 导航 ---- */
.site-header{position:sticky;top:0;z-index:60;background:var(--bg-000);border-bottom:1px solid var(--line-200);transition:box-shadow var(--tr)}
.site-header.scrolled{box-shadow:0 10px 30px -22px rgba(18,16,22,.55)}
.nav-wrap{display:flex;align-items:center;gap:22px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink-900)}
.brand:hover{color:var(--ink-900)}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--brand-600);color:#fff;font-size:18px;font-weight:700;display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-name{font-size:20px;font-weight:700;letter-spacing:-.4px}
.brand-sub{font-size:11px;letter-spacing:2px;color:var(--muted-500);margin-top:3px}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-menu a{position:relative;padding:10px 13px;border-radius:var(--r-pill);font-size:15px;color:var(--ink-700);white-space:nowrap;transition:var(--tr)}
.nav-menu a:hover{background:var(--bg-050);color:var(--brand-600)}
.nav-menu a.active{color:var(--brand-600);font-weight:600}
.nav-menu a.active::after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:3px;border-radius:3px;background:var(--brand-600)}
.drawer-cta{display:none!important}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{width:40px;height:40px;border-radius:12px;border:1px solid var(--line-200);display:inline-flex;align-items:center;justify-content:center;color:var(--ink-700);transition:var(--tr)}
.icon-btn:hover{border-color:var(--brand-600);color:var(--brand-600);background:var(--bg-050)}
.nav-burger{display:none}
.nav-mask{position:fixed;inset:0;background:rgba(18,16,22,.45);opacity:0;visibility:hidden;transition:var(--tr);z-index:65}
.nav-mask.open{opacity:1;visibility:visible}

@media(max-width:1023px){
  .nav-menu{position:fixed;top:0;right:0;width:290px;max-width:86vw;height:100%;background:var(--bg-000);flex-direction:column;align-items:stretch;gap:4px;margin-left:0;padding:88px 18px 110px;overflow-y:auto;transform:translateX(102%);transition:transform .28s ease;box-shadow:-18px 0 46px -26px rgba(18,16,22,.6);z-index:68}
  .nav-menu.open{transform:translateX(0)}
  .nav-menu a{padding:0 14px;height:48px;display:flex;align-items:center;border-radius:10px;font-size:16px}
  .nav-menu a.active::after{display:none}
  .nav-menu a.active{background:var(--bg-050)}
  .drawer-cta{display:inline-flex!important;margin-top:14px;height:48px;align-items:center;justify-content:center}
  .nav-burger{display:inline-flex}
  .nav-actions .btn{display:none}
  .topbar-text{display:none}
  .cd-day{display:none}
  .brand-sub{display:none}
}
@media(max-width:640px){
  .nav-wrap{height:62px;gap:12px}
  .brand-mark{width:34px;height:34px;border-radius:10px;font-size:16px}
  .brand-name{font-size:17px}
}

/* ---- 按钮 ---- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;font-size:15.5px;font-weight:600;cursor:pointer;transition:transform var(--tr),box-shadow var(--tr),background-color var(--tr),border-color var(--tr),color var(--tr)}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--cta-500);color:#fff}
.btn-primary:hover{background:var(--cta-500);color:#fff;box-shadow:0 14px 30px -16px rgba(255,92,57,.7)}
.btn-ghost{background:transparent;color:var(--ink-900);border-color:var(--line-200)}
.btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-600);background:var(--bg-050)}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px;border-radius:10px}
.btn-block{width:100%}

/* ---- 面包屑 ---- */
.breadcrumb{background:var(--bg-050);border-bottom:1px solid var(--line-200)}
.breadcrumb-inner{display:flex;align-items:center;gap:10px;height:52px;font-size:13.5px;color:var(--muted-500);white-space:nowrap;overflow:hidden}
.breadcrumb-inner a{color:var(--muted-500);transition:var(--tr)}
.breadcrumb-inner a:hover{color:var(--brand-600)}
.bc-sep{color:var(--line-200)}
.bc-current{color:var(--ink-900);overflow:hidden;text-overflow:ellipsis}

/* ---- 文章区 ---- */
.article-main{padding:34px 0 96px;background:var(--bg-000)}
.article-head{padding-bottom:26px;border-bottom:1px solid var(--line-200);margin-bottom:34px}
.article-title{font-size:40px;line-height:1.25;letter-spacing:-.5px;margin:14px 0 16px;word-break:break-word}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:12px;font-size:13.5px;color:var(--muted-500);font-family:var(--font-num)}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.article-meta time{font-variant-numeric:tabular-nums}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--line-200);display:inline-block}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);font-size:12px;letter-spacing:.5px;font-weight:600;font-family:var(--font-cn)}
.badge-soft{background:rgba(90,45,224,.09);color:var(--brand-600);border:1px solid rgba(90,45,224,.18)}
.badge-live{background:var(--accent-400);color:var(--ink-900);letter-spacing:1px}
.badge-line{background:transparent;color:var(--brand-600);border:1px solid var(--brand-600)}
.badge-mute{background:var(--bg-050);color:var(--muted-500);border:1px solid var(--line-200)}

/* ---- 正文排版 ---- */
.article-body{font-size:17.5px;line-height:1.95;color:var(--ink-700);max-width:760px;word-break:break-word}
.article-body>.lead:first-child{font-size:18.5px;color:var(--ink-900)}
.article-body h2{font-size:28px;line-height:1.3;margin:2.2em 0 .8em;padding-left:14px;border-left:4px solid var(--brand-600)}
.article-body h3{font-size:20px;line-height:1.4;margin:1.9em 0 .7em;font-weight:600}
.article-body h4{font-size:17.5px;margin:1.6em 0 .6em;font-weight:600}
.article-body h2:first-child,.article-body h3:first-child{margin-top:0}
.article-body p{margin:0 0 1em}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.2em}
.article-body ul li{list-style:none;position:relative;padding:6px 0 6px 18px}
.article-body ul li::before{content:"";position:absolute;left:0;top:17px;width:6px;height:6px;border-radius:2px;background:var(--brand-500)}
.article-body ol{list-style:decimal}
.article-body ol li{padding:6px 0;list-style:decimal}
.article-body img{border-radius:var(--r-img);margin:26px auto;box-shadow:var(--shadow-1)}
.article-body blockquote{margin:26px 0;padding:18px 24px;background:var(--bg-050);border-left:4px solid var(--brand-600);border-radius:0 14px 14px 0;color:var(--ink-700)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.article-body code{font-family:var(--font-num);font-size:15px;background:var(--bg-050);border:1px solid var(--line-200);border-radius:6px;padding:1px 6px;color:var(--brand-600)}
.article-body pre{background:var(--bg-050);border:1px solid var(--line-200);border-radius:14px;padding:16px 18px;overflow-x:auto;font-size:15px;line-height:1.7}
.article-body pre code{background:none;border:0;padding:0;color:var(--ink-700)}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15.5px}
.article-body th,.article-body td{border-bottom:1px solid var(--line-200);padding:11px 12px;text-align:left}
.article-body th{background:var(--bg-050);color:var(--ink-900);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--line-200);margin:34px 0}

/* ---- 空态 ---- */
.empty-state{border:2px dashed var(--line-200);border-radius:var(--r-card);padding:52px 24px;text-align:center;background:var(--bg-050)}
.empty-icon{width:56px;height:56px;margin:0 auto 18px;border-radius:16px;border:1.5px solid var(--brand-600);display:flex;align-items:center;justify-content:center;color:var(--brand-600)}
.empty-state h3{font-size:20px;margin-bottom:10px}
.empty-state p{color:var(--muted-500);font-size:15px;max-width:440px;margin:0 auto 22px}

/* ---- 下载引导条 ---- */
.dl-strip{margin:44px 0 0;background:var(--bg-050);border:1px solid var(--line-200);border-radius:var(--r-card);padding:22px 24px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
.dl-strip-text strong{display:block;color:var(--ink-900);font-size:17px;margin-bottom:4px}
.dl-strip-text span{font-size:14px;color:var(--muted-500)}
.dl-strip .btn{flex:0 0 auto}

/* ---- 标签行 ---- */
.tag-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:38px;padding-top:26px;border-top:1px solid var(--line-200);max-width:760px}
.tag-label{font-size:13.5px;color:var(--muted-500);letter-spacing:1px}
.tag-pill{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);border:1px solid var(--line-200);font-size:13.5px;color:var(--ink-700);transition:var(--tr)}
.tag-pill:hover{border-color:var(--brand-600);color:var(--brand-600);background:var(--bg-050);transform:translateY(-2px)}

/* ---- 侧栏 ---- */
.side-col{display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--bg-000);border:1px solid var(--line-200);border-radius:var(--r-card);padding:22px;box-shadow:var(--shadow-1)}
.side-title{font-size:16px;display:flex;align-items:center;gap:9px;margin-bottom:16px;font-weight:700}
.side-title::before{content:"";width:4px;height:15px;border-radius:2px;background:var(--brand-600);display:inline-block}
.side-list li{border-bottom:1px dashed var(--line-200)}
.side-list li:last-child{border-bottom:0}
.side-list a{display:block;padding:11px 0;font-size:14.5px;line-height:1.6;color:var(--ink-700);transition:var(--tr)}
.side-list a:hover{color:var(--brand-600)}
.side-list time{display:block;font-family:var(--font-num);font-size:12.5px;color:var(--muted-500);margin-top:4px;font-variant-numeric:tabular-nums}
.side-cta{background:var(--dark-band);border-radius:var(--r-card);padding:24px;color:#fff}
.side-cta h3{color:#fff;font-size:18px;margin-bottom:8px}
.side-cta p{color:rgba(255,255,255,.66);font-size:14px;line-height:1.7;margin-bottom:16px}
.side-cta .btn-primary{background:var(--cta-500)}
.side-meta{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--muted-500)}
.side-meta span{display:flex;justify-content:space-between;gap:12px}
.side-meta b{color:var(--ink-900);font-family:var(--font-num);font-weight:600}

/* ---- 板块通用 ---- */
.section{padding:0;margin-top:64px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.section-title{font-size:28px;line-height:1.3;letter-spacing:-.3px;display:flex;align-items:center;gap:12px}
.section-title::before{content:"";width:4px;height:24px;border-radius:2px;background:var(--brand-600);display:inline-block;flex:0 0 auto}
.section-more{font-size:14px;color:var(--muted-500);transition:var(--tr)}
.section-more:hover{color:var(--brand-600)}

/* ---- 内容卡片 ---- */
.post-card{background:var(--bg-000);border:1px solid var(--line-200);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);height:100%;display:flex;flex-direction:column}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-600)}
.post-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-050)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.post-body h3{font-size:18px;line-height:1.45;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body h3 a{color:var(--ink-900)}
.post-body h3 a:hover{color:var(--brand-600)}
.post-desc{font-size:14.5px;line-height:1.7;color:var(--muted-500);margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--muted-500);font-family:var(--font-num)}
.post-foot .badge{font-family:var(--font-cn);height:22px;font-size:11px}
.post-link{font-family:var(--font-cn);color:var(--brand-600);font-size:13.5px}

/* ---- 上一篇 / 下一篇 ---- */
.pager{display:grid;grid-template-columns:1fr;gap:14px;margin-top:44px}
@media(min-width:768px){.pager{grid-template-columns:1fr 1fr}}
.pager-item{border:1px solid var(--line-200);border-radius:var(--r-card);padding:18px 20px;background:var(--bg-000);transition:var(--tr)}
.pager-item:hover{border-color:var(--brand-600);box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.pager-item span{display:block;font-size:12.5px;color:var(--muted-500);letter-spacing:1px;margin-bottom:6px}
.pager-item strong{display:block;font-size:15.5px;color:var(--ink-900);font-weight:600;line-height:1.6}
.pager-item:hover strong{color:var(--brand-600)}
.back-link{display:inline-flex;align-items:center;gap:8px;margin-top:26px;font-size:14.5px;color:var(--muted-500);transition:var(--tr)}
.back-link:hover{color:var(--brand-600)}

/* ---- FAQ ---- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:880px}
.faq-item{border:1px solid var(--line-200);border-radius:14px;background:var(--bg-000);overflow:hidden;transition:var(--tr)}
.faq-item[open]{border-color:var(--brand-600);box-shadow:var(--shadow-1)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;min-height:56px;padding:14px 20px;font-size:16px;font-weight:600;color:var(--ink-900)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand-600)}
.faq-q{flex:0 0 auto;width:34px;height:24px;border-radius:var(--r-pill);border:1px solid var(--brand-600);color:var(--brand-600);font-family:var(--font-num);font-size:12px;display:inline-flex;align-items:center;justify-content:center;letter-spacing:.5px}
.faq-a{margin:0 20px 18px 68px;padding-left:14px;border-left:2px solid var(--brand-600);font-size:15px;line-height:1.85;color:var(--ink-700)}
.faq-a p:last-child{margin-bottom:0}
@media(max-width:640px){
  .faq-a{margin-left:20px}
}

/* ---- 尾部 CTA ---- */
.tail-cta{margin-top:72px;background:var(--dark-band);border-radius:22px;padding:30px 32px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.tail-cta h2{color:#fff;font-size:24px;line-height:1.4;margin-bottom:6px}
.tail-cta p{color:rgba(255,255,255,.65);font-size:14.5px;margin:0}
@media(max-width:640px){
  .tail-cta{padding:24px;border-radius:18px}
  .tail-cta h2{font-size:20px}
  .tail-cta .btn{width:100%}
}

/* ---- 页脚 ---- */
.site-footer{background:var(--dark-band);color:rgba(255,255,255,.66);margin-top:80px;padding:64px 0 0;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;padding-bottom:44px}
@media(min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:30px}}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:rgba(255,255,255,.45)}
.footer-brand .brand-mark{background:var(--brand-600)}
.footer-desc{margin:16px 0 18px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:330px}
.footer-social{display:flex;gap:10px}
.footer-social a{width:38px;height:38px;border-radius:12px;border:1px solid rgba(255,255,255,.14);display:inline-flex;align-items:center;justify-content:center;color:rgba(255,255,255,.7);transition:var(--tr)}
.footer-social a:hover{border-color:var(--accent-400);color:var(--accent-400)}
.footer-col h3{color:#fff;font-size:15px;letter-spacing:1px;margin-bottom:14px}
.footer-col li{line-height:34px}
.footer-col a{color:rgba(255,255,255,.66);transition:var(--tr)}
.footer-col a:hover{color:var(--accent-400)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.45)}
.footer-bottom a{color:rgba(255,255,255,.55)}
.footer-bottom a:hover{color:var(--accent-400)}

/* ---- 响应式 ---- */
@media(max-width:1023px){
  .article-title{font-size:32px}
  .article-main{padding:28px 0 72px}
  .side-col{margin-top:36px}
}
@media(max-width:640px){
  body{font-size:16px}
  .article-title{font-size:26px;letter-spacing:-.3px}
  .article-body{font-size:16.5px;line-height:1.9}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18px}
  .section-title{font-size:22px}
  .section-title::before{height:20px}
  .section{margin-top:48px}
  .dl-strip{padding:18px}
  .dl-strip .btn{width:100%}
  .breadcrumb-inner{height:46px}
  .site-footer{padding-top:48px}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root{
  --ink-900:#121016;
  --ink-700:#2A2635;
  --muted-500:#6C6780;
  --brand-600:#5A2DE0;
  --brand-500:#7A4BFF;
  --accent-400:#B9F227;
  --cta-500:#FF5C39;
  --bg-050:#F6F4FB;
  --bg-000:#FFFFFF;
  --line-200:#E3DFF0;
  --dark-band:#17121F;
  --font-cn:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Barlow Semi Condensed","Inter",system-ui,sans-serif;
  --radius-card:18px;
  --radius-img:16px;
  --radius-btn:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(18,16,22,.06);
  --shadow-2:0 18px 40px -24px rgba(90,45,224,.35);
  --sec-space:96px;
  --t:.22s ease;
}
*,*::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:1.85;
  color:var(--ink-900);
  background:var(--bg-000);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-600);text-decoration:none;transition:color var(--t),background var(--t),border-color var(--t),transform var(--t),box-shadow var(--t)}
a:hover{color:var(--brand-500)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:3px solid var(--accent-400);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}
@media (min-width:1280px){.container{max-width:1280px}}

/* ============ 顶部活动条 ============ */
.promo-bar{background:var(--dark-band);color:#fff;font-size:13.5px}
.promo-bar.is-hidden{display:none}
.promo-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:32px;padding-top:6px;padding-bottom:6px}
.promo-left{display:flex;align-items:center;gap:10px;min-width:0}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--accent-400);box-shadow:0 0 0 3px rgba(185,242,39,.18);flex:0 0 auto}
.promo-tag{font-size:11px;letter-spacing:1px;color:var(--accent-400);border:1px solid rgba(185,242,39,.5);border-radius:var(--radius-pill);padding:1px 8px;flex:0 0 auto}
.promo-text{color:rgba(255,255,255,.82);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.promo-right{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.cd-label{color:rgba(255,255,255,.6);font-size:12px}
.cd-group{display:flex;align-items:center;gap:4px;font-family:var(--font-num)}
.cd-cell{display:flex;align-items:baseline;gap:2px;background:rgba(255,255,255,.08);border-radius:6px;padding:1px 6px}
.cd-cell b{color:var(--accent-400);font-size:14px;font-weight:700;letter-spacing:.5px}
.cd-cell i{font-style:normal;font-size:11px;color:rgba(255,255,255,.55)}
.promo-close{color:rgba(255,255,255,.6);font-size:18px;line-height:1;padding:2px 6px;border-radius:6px}
.promo-close:hover{color:#fff;background:rgba(255,255,255,.1)}

/* ============ 主导航 ============ */
.site-header{background:var(--bg-000);border-bottom:1px solid var(--line-200);position:sticky;top:0;z-index:60;transition:box-shadow var(--t)}
.site-header.is-scrolled{box-shadow:0 6px 20px -14px rgba(18,16,22,.35)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink-900)}
.brand:hover{color:var(--ink-900)}
.brand-mark{width:36px;height:36px;border-radius:10px;background:var(--brand-600);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:20px;font-weight:700;letter-spacing:-.3px}
.brand-sub{font-size:11px;letter-spacing:2px;color:var(--muted-500)}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-menu a{position:relative;color:var(--ink-700);font-size:15px;padding:9px 12px;border-radius:var(--radius-pill);white-space:nowrap}
.nav-menu a:hover{background:rgba(122,75,255,.09);color:var(--brand-600)}
.nav-menu a.active{color:var(--brand-600);font-weight:600}
.nav-menu a.active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;border-radius:2px;background:var(--brand-600)}
.nav-actions{display:flex;align-items:center;gap:10px}
.icon-btn{width:38px;height:38px;border-radius:10px;border:1px solid var(--line-200);display:flex;align-items:center;justify-content:center;color:var(--ink-700);background:var(--bg-000)}
.icon-btn:hover{border-color:var(--brand-600);color:var(--brand-600);background:rgba(122,75,255,.06)}
.nav-burger{display:none}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-btn);padding:12px 22px;font-size:15px;font-weight:600;border:1px solid transparent;transition:transform var(--t),background var(--t),color var(--t),border-color var(--t),box-shadow var(--t)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--cta-500);color:#fff;box-shadow:0 8px 22px -14px rgba(255,92,57,.9)}
.btn-primary:hover{background:#ef4c29;color:#fff;transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--brand-600);border-color:var(--brand-600)}
.btn-ghost:hover{background:var(--brand-600);color:#fff;transform:translateY(-2px)}
.btn-light{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.35)}
.btn-light:hover{background:#fff;color:var(--dark-band);transform:translateY(-2px)}
.btn-sm{padding:9px 16px;font-size:14px}

/* ============ 内页头部 ============ */
.page-hero{position:relative;background:var(--bg-050);overflow:hidden;border-bottom:1px solid var(--line-200)}
.page-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(90deg,rgba(246,244,251,.96) 0%,rgba(246,244,251,.82) 46%,rgba(246,244,251,.35) 100%),url("/assets/images/backpic/back-2.webp");background-size:cover;background-position:center right;z-index:0}
.page-hero::after{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(45deg,rgba(18,16,22,.04) 0 2px,transparent 2px 10px);opacity:.5;pointer-events:none;z-index:0}
.page-hero .container{position:relative;z-index:1}
.hero-inner{display:grid;grid-template-columns:1fr;gap:28px;padding:44px 0 48px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted-500);flex-wrap:wrap}
.breadcrumb a{color:var(--muted-500)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb span.sep{color:var(--line-200)}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:1px;color:var(--brand-600);border:1px solid rgba(90,45,224,.35);border-radius:var(--radius-pill);padding:4px 12px;background:rgba(255,255,255,.75)}
h1{font-size:32px;line-height:1.25;font-weight:700;letter-spacing:-.5px;margin:16px 0 14px}
.hero-lead{font-size:16.5px;color:var(--ink-700);max-width:640px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--ink-700);background:rgba(255,255,255,.85);border:1px solid var(--line-200);border-radius:var(--radius-pill);padding:5px 12px}
.hero-side{background:var(--bg-000);border:1px solid var(--line-200);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:22px}
.hero-side h2{font-size:15px;font-weight:700;margin-bottom:12px;padding-left:10px;position:relative}
.hero-side h2::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:4px;border-radius:2px;background:var(--brand-600)}
.hero-side ul li{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px dashed var(--line-200);font-size:14px}
.hero-side ul li:last-child{border-bottom:0}
.hero-side ul li b{font-family:var(--font-num);font-size:15px;font-weight:700;color:var(--brand-600)}

/* ============ 通用板块 ============ */
.section{padding:var(--sec-space) 0}
.section.alt{background:var(--bg-050);border-top:1px solid var(--line-200);border-bottom:1px solid var(--line-200)}
.sec-head{max-width:760px;margin-bottom:40px}
h2{font-size:28px;line-height:1.3;font-weight:700;position:relative;padding-left:14px}
h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--brand-600)}
h3{font-size:20px;line-height:1.4;font-weight:700}
.sec-desc{margin-top:14px;color:var(--ink-700)}
.eyebrow{font-size:12px;letter-spacing:2px;color:var(--muted-500);text-transform:uppercase;font-family:var(--font-num);margin-bottom:10px}

/* ============ 引导布局：锚点目录 + 内容 ============ */
.guide-layout{display:grid;grid-template-columns:1fr;gap:32px}
.toc-card{background:var(--bg-000);border:1px solid var(--line-200);border-radius:var(--radius-card);padding:18px;box-shadow:var(--shadow-1)}
.toc-title{font-size:13px;letter-spacing:1px;color:var(--muted-500);margin-bottom:10px}
.toc-list{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;-webkit-overflow-scrolling:touch}
.toc-list a{flex:0 0 auto;font-size:14px;color:var(--ink-700);border:1px solid var(--line-200);border-radius:var(--radius-pill);padding:8px 14px;background:var(--bg-000);white-space:nowrap}
.toc-list a:hover{border-color:var(--brand-600);color:var(--brand-600)}
.toc-list a.is-active{background:var(--brand-600);border-color:var(--brand-600);color:#fff;font-weight:600}
.toc-list a .num{font-family:var(--font-num);font-weight:700;margin-right:6px;opacity:.75}

.topic{background:var(--bg-000);border:1px solid var(--line-200);border-radius:var(--radius-card);padding:26px;box-shadow:var(--shadow-1);margin-bottom:28px;scroll-margin-top:110px}
.topic:hover{box-shadow:var(--shadow-2);border-color:rgba(90,45,224,.25)}
.topic-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:16px}
.topic-index{font-family:var(--font-num);font-size:14px;font-weight:700;color:var(--brand-600);border:1px solid rgba(90,45,224,.4);border-radius:var(--radius-pill);padding:3px 12px;flex:0 0 auto;margin-top:4px}
.topic-body p{color:var(--ink-700);margin-bottom:14px}
.topic-body p:last-child{margin-bottom:0}
.topic-points{margin:18px 0 4px;display:grid;grid-template-columns:1fr;gap:8px}
.topic-points li{display:flex;gap:10px;align-items:flex-start;background:var(--bg-050);border-radius:10px;padding:10px 14px;font-size:15px;color:var(--ink-700)}
.topic-points li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--brand-500);flex:0 0 auto;margin-top:9px}
.topic-row{display:grid;grid-template-columns:1fr;gap:24px;align-items:center;margin-top:22px}
.topic-figure{margin:0;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line-200);background:var(--bg-050)}
.topic-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.topic-figure figcaption{font-size:13px;color:var(--muted-500);padding:10px 14px;background:var(--bg-000);border-top:1px solid var(--line-200)}

/* ============ 提示卡 ============ */
.tip-grid{display:grid;grid-template-columns:1fr;gap:20px}
.tip-card{border:1px solid var(--line-200);border-radius:var(--radius-card);padding:24px;background:var(--bg-000);position:relative}
.tip-card::before{content:"";position:absolute;left:24px;top:0;width:46px;height:4px;border-radius:0 0 4px 4px;background:var(--brand-500)}
.tip-card h3{font-size:18px;margin:12px 0 10px}
.tip-card p{color:var(--ink-700);font-size:15px}
.tip-num{font-family:var(--font-num);font-size:13px;font-weight:700;letter-spacing:1px;color:var(--muted-500)}
.tip-card.accent::before{background:var(--accent-400)}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{border:1px solid var(--line-200);border-radius:var(--radius-card);background:var(--bg-000);overflow:hidden}
.faq-item.is-open{border-color:var(--brand-600)}
.faq-q{display:flex;align-items:center;gap:14px;width:100%;text-align:left;padding:16px 20px;font-size:16.5px;font-weight:600;color:var(--ink-900);min-height:56px}
.faq-q:hover{background:rgba(122,75,255,.05)}
.faq-q .q-idx{font-family:var(--font-num);font-size:12px;font-weight:700;color:var(--brand-600);border:1px solid rgba(90,45,224,.45);border-radius:var(--radius-pill);padding:2px 10px;flex:0 0 auto}
.faq-q .chev{margin-left:auto;width:18px;height:18px;flex:0 0 auto;color:var(--muted-500);transition:transform var(--t)}
.faq-item.is-open .chev{transform:rotate(180deg);color:var(--brand-600)}
.faq-a{display:none;padding:0 20px 20px 62px;border-left:2px solid var(--brand-600);margin-left:20px}
.faq-item.is-open .faq-a{display:block}
.faq-a p{color:var(--ink-700);font-size:15.5px;margin-bottom:10px}
.faq-a p:last-child{margin-bottom:0}

/* ============ CTA 带 ============ */
.cta-band{background:var(--dark-band);border-radius:var(--radius-card);padding:32px;display:flex;flex-direction:column;gap:20px;align-items:flex-start}
.cta-band h2{color:#fff;font-size:24px}
.cta-band h2::before{background:var(--accent-400);top:8px;bottom:8px}
.cta-band p{color:rgba(255,255,255,.7);font-size:15px;margin-top:10px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark-band);color:rgba(255,255,255,.72);margin-top:var(--sec-space);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;padding-bottom:44px}
.footer-brand .brand{color:#fff}
.footer-brand .brand:hover{color:#fff}
.footer-brand .brand-mark{background:var(--brand-500)}
.footer-brand .brand-sub{color:rgba(255,255,255,.5)}
.footer-desc{font-size:14px;color:rgba(255,255,255,.62);margin:16px 0 18px;max-width:320px}
.socials{display:flex;gap:10px}
.socials a{width:36px;height:36px;border-radius:10px;border:1px solid rgba(255,255,255,.18);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.75)}
.socials a:hover{border-color:var(--accent-400);color:var(--accent-400)}
.footer-col h4{font-size:14px;color:#fff;letter-spacing:1px;margin-bottom:14px}
.footer-col a{display:block;color:rgba(255,255,255,.68);font-size:14px;line-height:34px}
.footer-col a:hover{color:var(--accent-400)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;padding-bottom:26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5)}

/* ============ 响应式 ============ */
@media (min-width:640px){
  h1{font-size:36px}
  .hero-inner{grid-template-columns:1.15fr .85fr;align-items:start;padding:52px 0 56px}
  .topic-points{grid-template-columns:1fr 1fr}
  .tip-grid{grid-template-columns:1fr 1fr}
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:36px 40px}
  .cta-actions{flex:0 0 auto}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
}
@media (min-width:1024px){
  h1{font-size:40px}
  .guide-layout{grid-template-columns:264px minmax(0,1fr);gap:40px;align-items:start}
  .toc-card{position:sticky;top:100px}
  .toc-list{flex-direction:column;overflow:visible;gap:6px}
  .toc-list a{border:0;border-left:2px solid var(--line-200);border-radius:0;padding:9px 12px;background:transparent}
  .toc-list a:hover{background:rgba(122,75,255,.07);border-left-color:var(--brand-500)}
  .toc-list a.is-active{background:rgba(90,45,224,.1);border-left:3px solid var(--brand-600);color:var(--brand-600)}
  .topic{padding:32px 34px}
  .topic-row{grid-template-columns:1fr 1fr;gap:32px;margin-top:26px}
  .topic-row.reverse .topic-figure{order:2}
  .tip-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:1023px){
  .nav-menu{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:var(--bg-000);flex-direction:column;align-items:stretch;gap:0;padding:88px 24px 120px;z-index:70;overflow-y:auto}
  .nav-menu.is-open{display:flex}
  .nav-menu a{font-size:17px;padding:0 12px;line-height:48px;border-radius:10px;border-bottom:1px solid var(--line-200)}
  .nav-menu a.active::after{display:none}
  .nav-menu a.active{background:rgba(90,45,224,.08)}
  .nav-burger{display:flex}
  .brand-name{font-size:18px}
  .brand-sub{letter-spacing:1px}
}
@media (max-width:639px){
  :root{--sec-space:56px}
  .promo-text{display:none}
  .promo-inner{min-height:34px}
  .cd-cell.days{display:none}
  .nav-menu{padding-top:80px}
  .btn{width:100%}
  .cta-actions{width:100%}
  .faq-a{padding-left:24px;margin-left:12px}
  .topic{padding:20px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category3 */
:root{
  --ink-900:#121016;
  --ink-700:#2A2635;
  --muted-500:#6C6780;
  --brand-600:#5A2DE0;
  --brand-500:#7A4BFF;
  --accent-400:#B9F227;
  --cta-500:#FF5C39;
  --bg-050:#F6F4FB;
  --bg-000:#FFFFFF;
  --line-200:#E3DFF0;
  --dark-band:#17121F;
  --font-cn:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Barlow Semi Condensed","Inter",system-ui,-apple-system,sans-serif;
  --r-card:18px;
  --r-img:16px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,16,22,.06);
  --sh-2:0 18px 40px -24px rgba(90,45,224,.35);
  --gap-sec:96px;
  --tr:.22s ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--bg-000);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand-600);text-decoration:none;transition:var(--tr);}
a:hover{color:var(--brand-500);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--ink-900);}
:focus-visible{outline:3px solid var(--accent-400);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1024px){
  .container{padding-left:32px;padding-right:32px;}
}
@media (min-width:1280px){
  .container{max-width:1280px;}
}
.grid-x{display:flex;flex-wrap:wrap;}
.grid-x.grid-padding-x{margin-left:0;margin-right:0;}
.grid-x.grid-padding-x>.cell{padding-left:12px;padding-right:12px;}
.grid-x>.cell.small-12{flex:0 0 100%;width:100%;}
@media (min-width:640px){
  .grid-x>.cell.medium-6{flex:0 0 50%;width:50%;}
  .grid-x>.cell.medium-5{flex:0 0 41.6667%;width:41.6667%;}
  .grid-x>.cell.medium-7{flex:0 0 58.3333%;width:58.3333%;}
}
@media (min-width:1024px){
  .grid-x>.cell.large-3{flex:0 0 25%;width:25%;}
  .grid-x>.cell.large-4{flex:0 0 33.3333%;width:33.3333%;}
  .grid-x>.cell.large-5{flex:0 0 41.6667%;width:41.6667%;}
  .grid-x>.cell.large-6{flex:0 0 50%;width:50%;}
  .grid-x>.cell.large-7{flex:0 0 58.3333%;width:58.3333%;}
  .grid-x>.cell.large-8{flex:0 0 66.6667%;width:66.6667%;}
}

/* 顶部活动条 */
.promo-bar{
  background:var(--dark-band);
  color:#fff;
  font-size:13.5px;
  min-height:32px;
}
.promo-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:32px;
  padding-top:5px;
  padding-bottom:5px;
}
.promo-left{display:flex;align-items:center;gap:10px;min-width:0;}
.dot-live{
  width:8px;height:8px;border-radius:50%;
  background:var(--accent-400);
  box-shadow:0 0 0 3px rgba(185,242,39,.18);
  flex:0 0 auto;
}
.promo-tag{
  font-size:11px;letter-spacing:1px;
  color:var(--accent-400);
  border:1px solid rgba(185,242,39,.45);
  border-radius:var(--r-pill);
  padding:1px 8px;
  flex:0 0 auto;
}
.promo-text{
  color:rgba(255,255,255,.82);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.promo-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.cd-label{color:rgba(255,255,255,.6);font-size:12.5px;}
.cd-group{display:flex;align-items:center;gap:4px;font-family:var(--font-num);}
.cd-cell{
  display:inline-flex;align-items:baseline;gap:2px;
  background:rgba(255,255,255,.08);
  border-radius:6px;
  padding:1px 6px;
}
.cd-cell b{color:var(--accent-400);font-size:13.5px;font-weight:700;letter-spacing:.5px;}
.cd-cell i{font-style:normal;color:rgba(255,255,255,.5);font-size:10.5px;}
.promo-close{
  background:transparent;border:0;color:rgba(255,255,255,.55);
  font-size:18px;line-height:1;padding:2px 6px;border-radius:6px;
}
.promo-close:hover{color:#fff;background:rgba(255,255,255,.1);}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--bg-000);
  border-bottom:1px solid var(--line-200);
  transition:box-shadow var(--tr);
}
.site-header.is-scrolled{box-shadow:0 8px 24px -20px rgba(18,16,22,.65);}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;}
.brand-mark{
  width:38px;height:38px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--brand-600);
  color:#fff;font-size:19px;font-weight:700;
  clip-path:polygon(0 0,100% 0,100% 78%,86% 100%,0 100%);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:20px;font-weight:700;color:var(--ink-900);letter-spacing:-.3px;}
.brand-sub{font-size:11px;letter-spacing:2px;color:var(--muted-500);}
.nav-menu{display:flex;align-items:center;gap:6px;}
.nav-menu a{
  position:relative;
  display:inline-flex;align-items:center;
  height:38px;padding:0 12px;
  border-radius:var(--r-pill);
  font-size:15px;color:var(--ink-700);
  white-space:nowrap;
}
.nav-menu a:hover{background:var(--bg-050);color:var(--brand-600);}
.nav-menu a.active{color:var(--ink-900);font-weight:600;}
.nav-menu a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;
  height:3px;border-radius:2px;background:var(--brand-600);
}
.nav-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:38px;height:38px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line-200);border-radius:12px;
  background:#fff;color:var(--ink-700);
  transition:var(--tr);
}
.icon-btn:hover{border-color:var(--brand-600);color:var(--brand-600);transform:translateY(-2px);}
.nav-burger{display:none;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:var(--tr);
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--cta-500);color:#fff;}
.btn-primary:hover{background:#F04B29;color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px -16px rgba(255,92,57,.85);}
.btn-ghost{background:transparent;color:var(--ink-900);border-color:var(--line-200);}
.btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-600);background:#fff;transform:translateY(-2px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

/* 面包屑 */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--muted-500);
  padding-top:22px;
}
.crumb a{color:var(--muted-500);}
.crumb a:hover{color:var(--brand-600);}
.crumb .sep{color:var(--line-200);}
.crumb .cur{color:var(--ink-700);}

/* Hero */
.page-hero{
  position:relative;
  background-image:linear-gradient(180deg,rgba(246,244,251,.94) 0%,rgba(246,244,251,.62) 58%,rgba(255,255,255,1) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  padding-bottom:56px;
}
.page-hero .hero-inner{padding-top:34px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(90,45,224,.08);
  color:var(--brand-600);
  font-size:12px;letter-spacing:1px;
}
.page-hero h1{
  font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.5px;
  margin-top:18px;
  max-width:820px;
}
.hero-lead{
  margin-top:16px;
  font-size:17px;line-height:1.8;color:var(--ink-700);
  max-width:700px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:14px 46px;
  margin-top:38px;padding-top:26px;
  border-top:1px solid var(--line-200);
}
.stat b{
  display:block;font-family:var(--font-num);
  font-size:32px;font-weight:700;line-height:1.1;color:var(--ink-900);
}
.stat b em{font-style:normal;font-size:16px;color:var(--muted-500);margin-left:3px;}
.stat span{display:block;font-size:13px;color:var(--muted-500);margin-top:6px;}

/* 板块通用 */
.section{padding-top:var(--gap-sec);}
.section-tight{padding-top:64px;}
.sec-head{max-width:760px;}
.sec-head h2{
  position:relative;
  padding-left:16px;
  font-size:28px;line-height:1.3;font-weight:700;letter-spacing:-.2px;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.2em;
  width:4px;height:.86em;border-radius:2px;background:var(--brand-600);
}
.sec-head p{margin-top:12px;color:var(--muted-500);font-size:15px;}
.sec-head-row{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:20px;
}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--brand-600);
}
.text-link:hover{gap:10px;color:var(--brand-500);}

/* 状态标签 */
.status{
  display:inline-flex;align-items:center;
  height:22px;padding:0 10px;
  border-radius:var(--r-pill);
  font-size:11px;letter-spacing:1px;line-height:1;
}
.status-live{background:var(--accent-400);color:var(--ink-900);}
.status-soon{background:transparent;color:var(--brand-600);border:1px solid var(--brand-600);}
.status-end{background:#EDECF2;color:var(--muted-500);}

/* 筛选条 */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:16px;
  padding:16px 18px;
  margin-bottom:28px;
  border:1px solid var(--line-200);
  border-radius:var(--r-card);
  background:var(--bg-050);
}
.chip-group{display:flex;flex-wrap:wrap;gap:8px;}
.filter-chip{
  height:34px;padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-200);
  background:#fff;color:var(--ink-700);
  font-size:14px;
  transition:var(--tr);
}
.filter-chip:hover{border-color:var(--brand-500);color:var(--brand-600);}
.filter-chip.is-on{
  background:var(--brand-600);border-color:var(--brand-600);color:#fff;font-weight:600;
}
.search-box{
  position:relative;
  flex:1 1 260px;max-width:340px;
}
.search-box svg{
  position:absolute;left:14px;top:50%;transform:translateY(-50%);
  color:var(--muted-500);
}
.search-box input{
  width:100%;height:46px;
  padding:0 14px 0 42px;
  border:1px solid var(--line-200);
  border-radius:10px;
  background:#fff;
  transition:var(--tr);
}
.search-box input:focus{
  outline:none;border-color:var(--brand-600);
  box-shadow:0 0 0 3px rgba(90,45,224,.12);
}
.search-box input::placeholder{color:#A9A5B8;}

/* 活动卡墙 */
.act-wall{margin-top:8px;}
.act-card{
  position:relative;
  display:flex;flex-direction:column;
  height:100%;
  padding:22px 22px 20px;
  margin-bottom:24px;
  border:1px solid var(--line-200);
  border-radius:var(--r-card);
  background:#fff;
  box-shadow:var(--sh-1);
  transition:var(--tr);
}
.act-card::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:4px;
  border-radius:var(--r-card) var(--r-card) 0 0;
  background:var(--line-200);
}
.act-card[data-status="live"]::before{background:var(--accent-400);}
.act-card[data-status="soon"]::before{background:var(--brand-500);}
.act-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D8D1F0;}
.act-card.is-muted{opacity:.72;}
.act-top{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin-bottom:16px;
}
.cd-badge{
  font-family:var(--font-num);
  font-size:12.5px;letter-spacing:.4px;
  color:var(--cta-500);
  background:rgba(255,92,57,.08);
  border-radius:6px;
  padding:2px 8px;
}
.cd-badge.is-plain{color:var(--muted-500);background:#F1F0F6;}
.act-card h3{font-size:20px;line-height:1.4;font-weight:700;}
.act-desc{margin-top:10px;font-size:14.5px;line-height:1.75;color:var(--ink-700);}
.act-list{margin-top:14px;padding-top:14px;border-top:1px dashed var(--line-200);}
.act-list li{
  position:relative;
  padding:4px 0 4px 20px;
  font-size:14px;color:var(--ink-700);
}
.act-list li::before{
  content:"";position:absolute;left:2px;top:13px;
  width:6px;height:6px;border-radius:50%;
  background:var(--brand-500);
}
.act-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:20px;
}
.act-time{
  font-family:var(--font-num);
  font-size:12.5px;color:var(--muted-500);letter-spacing:.4px;
}
.act-card.is-disabled .btn{
  background:#F1F0F6;color:var(--muted-500);border-color:#E7E5EF;
  pointer-events:none;
}

/* 空态 */
.empty-state{
  display:none;
  padding:56px 24px;
  border:1px dashed var(--line-200);
  border-radius:var(--r-card);
  background:var(--bg-050);
  text-align:center;
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 18px;
  display:flex;align-items:center;justify-content:center;
  border-radius:16px;
  background:#fff;border:1px solid var(--line-200);
  color:var(--brand-600);
}
.empty-state p{color:var(--muted-500);font-size:15px;margin-top:8px;}
.empty-state .btn{margin-top:22px;}

/* 三步领取 */
.steps{margin-top:34px;}
.step{
  display:flex;gap:16px;
  padding:24px 22px;
  border:1px solid var(--line-200);
  border-radius:var(--r-card);
  background:#fff;
  height:100%;
  margin-bottom:24px;
}
.step-num{
  flex:0 0 auto;
  font-family:var(--font-num);
  font-size:26px;font-weight:700;line-height:1;
  color:var(--brand-600);
  letter-spacing:-.5px;
}
.step h3{font-size:17px;font-weight:700;}
.step p{margin-top:8px;font-size:14.5px;color:var(--ink-700);}
.step-lead{
  margin-top:0;
}
.step-wide{
  padding:30px 28px;
  background:var(--bg-050);
  border-color:#D9D3F1;
}

/* 规则折叠 */
.rule-list{margin-top:30px;}
.rule{
  border:1px solid var(--line-200);
  border-radius:var(--r-card);
  background:#fff;
  margin-bottom:14px;
  overflow:hidden;
  transition:var(--tr);
}
.rule:hover{border-color:#D8D1F0;}
.rule summary{
  list-style:none;
  display:flex;align-items:center;gap:14px;
  min-height:56px;padding:12px 20px;
  font-size:16px;font-weight:600;color:var(--ink-900);
  cursor:pointer;
}
.rule summary::-webkit-details-marker{display:none;}
.rule summary::before{
  content:"Q";flex:0 0 auto;
  width:26px;height:22px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--brand-600);border-radius:var(--r-pill);
  color:var(--brand-600);font-size:11px;font-family:var(--font-num);letter-spacing:1px;
}
.rule summary::after{
  content:"";margin-left:auto;
  width:9px;height:9px;flex:0 0 auto;
  border-right:2px solid var(--muted-500);
  border-bottom:2px solid var(--muted-500);
  transform:rotate(45deg);
  transition:transform var(--tr);
}
.rule[open] summary::after{transform:rotate(-135deg);}
.rule-body{
  padding:2px 20px 20px 60px;
  border-left:2px solid var(--brand-600);
  margin-left:33px;
  font-size:15px;
  color:var(--ink-700);
}
.rule-body p{margin-bottom:10px;}
.rule-body p:last-child{margin-bottom:0;}

/* FAQ */
.faq-block{margin-top:30px;}
.faq{
  border:1px solid var(--line-200);
  border-radius:var(--r-card);
  background:#fff;
  margin-bottom:14px;
  transition:var(--tr);
}
.faq:hover{border-color:#D8D1F0;}
.faq summary{
  list-style:none;
  display:flex;align-items:center;gap:14px;
  min-height:56px;padding:12px 20px;
  font-size:16px;font-weight:600;
  cursor:pointer;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{
  content:"";margin-left:auto;
  width:9px;height:9px;flex:0 0 auto;
  border-right:2px solid var(--muted-500);
  border-bottom:2px solid var(--muted-500);
  transform:rotate(45deg);
  transition:transform var(--tr);
}
.faq[open] summary::after{transform:rotate(-135deg);}
.faq-body{
  padding:2px 20px 20px 20px;
  border-left:2px solid var(--brand-600);
  margin-left:22px;
  font-size:15px;color:var(--ink-700);
}
.faq-body p{margin-bottom:10px;}
.faq-body p:last-child{margin-bottom:0;}

/* 图片区块 */
.media-row{align-items:center;}
.media-figure{
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line-200);
  box-shadow:var(--sh-1);
}
.media-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.media-copy h2{
  position:relative;padding-left:16px;
  font-size:28px;line-height:1.3;font-weight:700;
}
.media-copy h2::before{
  content:"";position:absolute;left:0;top:.2em;
  width:4px;height:.86em;border-radius:2px;background:var(--brand-600);
}
.media-copy p{margin-top:16px;color:var(--ink-700);}
.tick-list{margin-top:20px;}
.tick-list li{
  position:relative;
  padding:7px 0 7px 30px;
  font-size:15px;color:var(--ink-700);
}
.tick-list li::before{
  content:"";position:absolute;left:4px;top:15px;
  width:12px;height:7px;
  border-left:2px solid var(--brand-600);
  border-bottom:2px solid var(--brand-600);
  transform:rotate(-45deg);
}

/* CTA 带 */
.cta-strip{
  margin-top:var(--gap-sec);
  background:var(--dark-band);
  color:#fff;
}
.cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:22px;
  padding-top:40px;padding-bottom:40px;
}
.cta-inner h2{font-size:24px;line-height:1.35;font-weight:700;color:#fff;}
.cta-inner p{margin-top:8px;color:rgba(255,255,255,.68);font-size:15px;}

/* 页脚 */
.site-footer{
  background:var(--dark-band);
  color:rgba(255,255,255,.72);
  padding-top:64px;
  margin-top:0;
}
.site-footer a{color:rgba(255,255,255,.72);}
.site-footer a:hover{color:var(--accent-400);}
.footer-grid{padding-bottom:8px;}
.footer-brand{padding-right:24px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.45);}
.footer-brand .brand-mark{background:var(--brand-600);}
.footer-brand p{
  margin-top:18px;
  font-size:14.5px;line-height:1.8;
  color:rgba(255,255,255,.62);
  max-width:340px;
}
.socials{display:flex;gap:10px;margin-top:20px;}
.socials a{
  width:36px;height:36px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.16);
  border-radius:10px;
  color:rgba(255,255,255,.7);
}
.socials a:hover{border-color:var(--accent-400);color:var(--accent-400);transform:translateY(-2px);}
.footer-col h3{
  font-size:14px;font-weight:600;color:#fff;
  letter-spacing:1px;
  margin-bottom:14px;
}
.footer-col a,.footer-col p{
  display:block;
  font-size:14px;
  line-height:34px;
  color:rgba(255,255,255,.66);
}
.footer-col p{line-height:26px;margin-bottom:6px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:10px;
  margin-top:44px;
  padding-top:22px;padding-bottom:26px;
  border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:rgba(255,255,255,.45);
}
.footer-bottom a{color:rgba(255,255,255,.56);}

/* 响应式 */
@media (max-width:1023px){
  :root{--gap-sec:56px;}
  .nav-menu{
    display:none;
    position:absolute;top:100%;left:0;right:0;
    background:#fff;
    flex-direction:column;align-items:stretch;gap:0;
    padding:10px 20px 20px;
    border-bottom:1px solid var(--line-200);
    box-shadow:0 22px 34px -26px rgba(18,16,22,.5);
  }
  .nav-menu.is-open{display:flex;}
  .nav-menu a{
    height:48px;border-radius:10px;padding:0 12px;font-size:15.5px;
  }
  .nav-menu a.active::after{left:12px;right:auto;width:18px;bottom:9px;}
  .nav-burger{display:inline-flex;}
  .page-hero h1{font-size:33px;}
  .brand-name{font-size:17px;}
  .brand-sub{letter-spacing:1.4px;}
  .media-copy{margin-top:26px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .page-hero h1{font-size:29px;}
  .sec-head h2,.media-copy h2{font-size:23px;}
  .cta-inner h2{font-size:21px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{width:100%;height:48px;}
  .hero-stats{gap:18px 32px;}
  .stat b{font-size:26px;}
  .filter-bar{padding:14px;}
  .search-box{max-width:none;flex:1 1 100%;}
  .rule-body{padding-left:22px;margin-left:14px;}
  .faq-body{padding-left:18px;margin-left:12px;}
  .promo-text{display:none;}
  .act-foot{flex-direction:column;align-items:stretch;gap:12px;}
  .act-foot .btn{width:100%;}
}
@media (max-width:519px){
  .cd-group .cd-cell:first-child{display:none;}
  .cd-label{display:none;}
  .brand-mark{width:34px;height:34px;font-size:17px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .act-card:hover,.btn:hover{transform:none;}
}

/* roulang page: category4 */
:root{
  --ink-900:#121016;
  --ink-700:#2A2635;
  --muted-500:#6C6780;
  --brand-600:#5A2DE0;
  --brand-500:#7A4BFF;
  --accent-400:#B9F227;
  --cta-500:#FF5C39;
  --bg-050:#F6F4FB;
  --bg-000:#FFFFFF;
  --line-200:#E3DFF0;
  --dark-band:#17121F;
  --font-cn:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Barlow Semi Condensed","Inter",system-ui,-apple-system,sans-serif;
  --radius-card:18px;
  --radius-img:16px;
  --radius-btn:12px;
  --radius-pill:999px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(18,16,22,.06);
  --shadow-2:0 18px 40px -24px rgba(90,45,224,.35);
  --sec-y:96px;
}
*,*::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:1.85;
  color:var(--ink-900);
  background:var(--bg-000);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink-900);}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid var(--accent-400);outline-offset:2px;border-radius:6px;}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 32px;}}
@media (min-width:1280px){.container{max-width:1280px;}}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--bg-000);border-bottom:1px solid var(--line-200);transition:box-shadow .22s ease;}
.site-header.is-scrolled{box-shadow:0 6px 18px -14px rgba(18,16,22,.45);}
.nav-wrap{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;}
.brand-mark{width:38px;height:38px;border-radius:11px;background:var(--brand-600);color:#fff;display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:700;letter-spacing:0;}
.brand-text{display:flex;flex-direction:column;line-height:1.16;}
.brand-name{font-size:20px;font-weight:700;letter-spacing:-.3px;color:var(--ink-900);}
.brand-sub{font-size:11px;letter-spacing:2px;color:var(--muted-500);}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-menu a{position:relative;padding:8px 12px;border-radius:var(--radius-pill);font-size:15px;color:var(--ink-700);white-space:nowrap;transition:background .22s ease,color .22s ease;}
.nav-menu a:hover{background:rgba(122,75,255,.10);color:var(--brand-600);}
.nav-menu a.active{color:var(--brand-600);font-weight:600;}
.nav-menu a.active::after{content:"";position:absolute;left:12px;right:12px;bottom:-3px;height:3px;border-radius:3px;background:var(--brand-600);}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--line-200);background:var(--bg-000);color:var(--ink-700);cursor:pointer;transition:border-color .22s ease,color .22s ease,background .22s ease,transform .22s ease;}
.icon-btn:hover{border-color:var(--brand-600);color:var(--brand-600);background:rgba(122,75,255,.07);}
.icon-btn:active{transform:translateY(1px);}
.nav-burger{display:none;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;}
.btn:hover{transform:translateY(-2px);}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--cta-500);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{box-shadow:var(--shadow-2);color:#fff;}
.btn-ghost{background:transparent;border-color:var(--line-200);color:var(--ink-700);}
.btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-600);background:rgba(122,75,255,.06);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13.5px;color:var(--muted-500);}
.breadcrumb a{color:var(--muted-500);transition:color .22s ease;}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{color:var(--line-200);}
.breadcrumb .current{color:var(--ink-700);}

/* ---------- 页面头部 ---------- */
.page-hero{
  position:relative;
  padding:44px 0 60px;
  background-color:var(--bg-050);
  background-image:linear-gradient(180deg,rgba(246,244,251,.97) 0%,rgba(246,244,251,.90) 52%,rgba(246,244,251,1) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line-200);
}
.hero-tag{display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 12px;border-radius:var(--radius-pill);background:rgba(185,242,39,.32);border:1px solid rgba(90,45,224,.16);font-size:11px;letter-spacing:1px;color:var(--ink-700);margin-top:18px;}
.hero-tag .lamp{width:7px;height:7px;border-radius:50%;background:var(--brand-600);}
.page-hero h1{font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.5px;margin:16px 0 16px;}
.hero-lead{max-width:620px;font-size:16.5px;line-height:1.85;color:var(--ink-700);}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-card{background:var(--bg-000);border:1px solid var(--line-200);border-radius:var(--radius-card);box-shadow:var(--shadow-2);overflow:hidden;}
.hero-card .thumb{aspect-ratio:16/9;overflow:hidden;border-radius:var(--radius-img) var(--radius-img) 0 0;margin:10px 10px 0;}
.hero-card .thumb img{width:100%;height:100%;object-fit:cover;}
.hero-card .body{padding:18px 20px 22px;}
.hero-card h2{font-size:16px;margin-bottom:12px;}
.quick-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 12px;border-radius:10px;font-size:14.5px;color:var(--ink-700);border:1px solid transparent;transition:all .22s ease;}
.quick-list a:hover{background:var(--bg-050);border-color:var(--line-200);color:var(--brand-600);}
.quick-list .arrow{color:var(--brand-600);font-family:var(--font-num);}

/* ---------- 区块通用 ---------- */
.section{padding:var(--sec-y) 0;}
.section.is-tint{background:var(--bg-050);}
.section-head{margin-bottom:34px;}
.section-head h2{position:relative;font-size:28px;line-height:1.3;font-weight:700;letter-spacing:-.3px;padding-left:16px;}
.section-head h2::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--brand-600);}
.section-head p{margin:10px 0 0;font-size:14px;color:var(--muted-500);}

/* ---------- 搜索框 ---------- */
.search-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:30px;}
.search-field{position:relative;flex:1 1 320px;max-width:640px;}
.search-field .ico{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--muted-500);pointer-events:none;}
.search-field input{width:100%;height:52px;border:1px solid var(--line-200);border-radius:var(--radius-input);padding:0 16px 0 46px;font-family:var(--font-cn);font-size:15.5px;color:var(--ink-900);background:var(--bg-000);transition:border-color .22s ease,box-shadow .22s ease;}
.search-field input::placeholder{color:var(--muted-500);}
.search-field input:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(122,75,255,.14);}
.search-result{font-size:13.5px;color:var(--muted-500);font-family:var(--font-num);letter-spacing:.4px;}

/* ---------- FAQ 双栏 ---------- */
.faq-layout{display:grid;grid-template-columns:262px minmax(0,1fr);gap:44px;align-items:start;}
.anchor-nav{position:sticky;top:96px;background:var(--bg-000);border:1px solid var(--line-200);border-radius:var(--radius-card);padding:18px;box-shadow:var(--shadow-1);}
.anchor-nav h3{font-size:13px;letter-spacing:1.4px;color:var(--muted-500);font-weight:600;margin-bottom:12px;}
.anchor-list a{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:9px 12px;border-radius:10px;font-size:14.5px;color:var(--ink-700);transition:background .22s ease,color .22s ease;}
.anchor-list a:hover{background:var(--bg-050);color:var(--brand-600);}
.anchor-list .num{font-family:var(--font-num);font-size:12.5px;color:var(--muted-500);}
.anchor-note{margin-top:16px;padding-top:16px;border-top:1px solid var(--line-200);font-size:13px;color:var(--muted-500);line-height:1.7;}

.faq-group{margin-bottom:44px;scroll-margin-top:100px;}
.faq-group:last-child{margin-bottom:0;}
.faq-group > h3{display:flex;align-items:center;gap:10px;font-size:20px;margin-bottom:16px;}
.faq-group > h3 .dot{width:8px;height:8px;border-radius:50%;background:var(--accent-400);flex:0 0 auto;}
.faq-item{border:1px solid var(--line-200);border-radius:var(--radius-img);background:var(--bg-000);margin-bottom:10px;overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease;}
.faq-item:hover{border-color:var(--brand-500);}
.faq-item.is-open{border-color:var(--brand-600);box-shadow:var(--shadow-2);}
.faq-item.is-filtered,.faq-group.is-filtered{display:none;}
.faq-q{width:100%;display:flex;align-items:center;gap:14px;min-height:56px;padding:12px 18px;background:none;border:0;text-align:left;font-size:16px;font-weight:600;color:var(--ink-900);cursor:pointer;transition:color .22s ease;}
.faq-q:hover{color:var(--brand-600);}
.faq-q .q-idx{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;min-width:40px;height:24px;padding:0 8px;border:1px solid var(--brand-600);border-radius:var(--radius-pill);font-family:var(--font-num);font-size:12px;letter-spacing:.5px;color:var(--brand-600);}
.faq-q .q-text{flex:1 1 auto;}
.faq-q .chev{flex:0 0 auto;color:var(--muted-500);transition:transform .22s ease,color .22s ease;}
.faq-item.is-open .chev{transform:rotate(180deg);color:var(--brand-600);}
.faq-a{display:none;position:relative;padding:0 22px 18px 72px;font-size:15.5px;color:var(--ink-700);}
.faq-a::before{content:"";position:absolute;left:36px;top:4px;bottom:20px;width:2px;border-radius:2px;background:var(--brand-600);}
.faq-item.is-open .faq-a{display:block;}

/* ---------- 未解决提示条 ---------- */
.help-bar{display:flex;align-items:center;justify-content:space-between;gap:26px;background:var(--bg-050);border:1px solid var(--line-200);border-radius:var(--radius-card);padding:22px 28px;}
.help-bar h3{font-size:19px;margin-bottom:6px;}
.help-bar p{margin:0;font-size:14.5px;color:var(--muted-500);}

/* ---------- 入口卡片 ---------- */
.entry-card{display:flex;flex-direction:column;height:100%;background:var(--bg-000);border:1px solid var(--line-200);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-600);}
.entry-card .thumb{aspect-ratio:16/9;overflow:hidden;border-radius:var(--radius-img) var(--radius-img) 0 0;margin:10px 10px 0;}
.entry-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.entry-card:hover .thumb img{transform:scale(1.04);}
.entry-card .body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.entry-card h3{font-size:18px;}
.entry-card p{font-size:14.5px;color:var(--muted-500);margin:0;}
.entry-card .more{margin-top:auto;font-size:14px;font-weight:600;color:var(--brand-600);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark-band);color:rgba(255,255,255,.78);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.52);}
.footer-brand .brand-mark{background:var(--brand-500);}
.footer-desc{margin-top:16px;font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.66);max-width:320px;}
.footer-social{display:flex;gap:10px;margin-top:18px;}
.footer-social a{width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.8);transition:all .22s ease;}
.footer-social a:hover{border-color:var(--accent-400);color:var(--accent-400);}
.footer-col h4{font-size:15px;color:#fff;font-weight:600;margin-bottom:14px;}
.footer-col a{display:block;line-height:34px;font-size:14.5px;color:rgba(255,255,255,.7);transition:color .22s ease;}
.footer-col a:hover{color:var(--accent-400);}
.footer-col .contact-line{line-height:34px;font-size:14.5px;color:rgba(255,255,255,.7);}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13.5px;color:rgba(255,255,255,.5);}
.footer-bottom a{color:rgba(255,255,255,.5);transition:color .22s ease;}
.footer-bottom a:hover{color:var(--accent-400);}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .nav-menu a{padding:8px 10px;font-size:14.5px;}
}
@media (max-width:1023px){
  .nav-menu{position:fixed;top:72px;left:0;right:0;bottom:0;display:none;flex-direction:column;align-items:stretch;gap:0;margin:0;padding:14px 20px 90px;background:var(--bg-000);overflow-y:auto;z-index:70;}
  .nav-menu.is-open{display:flex;}
  .nav-menu a{height:48px;display:flex;align-items:center;padding:0 14px;border-radius:12px;font-size:16px;}
  .nav-menu a.active::after{display:none;}
  .nav-menu a.active{background:rgba(122,75,255,.10);}
  .nav-burger{display:inline-flex;}
  .nav-actions .btn-primary{display:none;}
  .faq-layout{grid-template-columns:1fr;gap:26px;}
  .anchor-nav{position:static;padding:14px;}
  .anchor-list{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;}
  .anchor-list a{flex:0 0 auto;border:1px solid var(--line-200);border-radius:var(--radius-pill);padding:8px 14px;font-size:14px;}
  .anchor-note{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:640px){
  body{font-size:16px;}
  .section{padding:56px 0;}
  .page-hero{padding:28px 0 44px;}
  .page-hero h1{font-size:29px;letter-spacing:-.2px;margin:14px 0 12px;}
  .hero-lead{font-size:15.5px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{width:100%;height:48px;}
  .section-head h2{font-size:23px;}
  .faq-q{font-size:15.5px;gap:10px;padding:12px 14px;}
  .faq-a{padding:0 16px 16px 60px;font-size:15px;}
  .faq-a::before{left:30px;}
  .help-bar{flex-direction:column;align-items:flex-start;gap:16px;padding:20px;}
  .help-bar .btn{width:100%;height:48px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-desc{max-width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category5 */
:root{
  --ink-900:#121016;
  --ink-700:#2A2635;
  --muted-500:#6C6780;
  --brand-600:#5A2DE0;
  --brand-500:#7A4BFF;
  --accent-400:#B9F227;
  --cta-500:#FF5C39;
  --bg-050:#F6F4FB;
  --bg-000:#FFFFFF;
  --line-200:#E3DFF0;
  --dark-band:#17121F;

  --font-cn:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Barlow Semi Condensed","Inter",system-ui,sans-serif;

  --r-card:18px;
  --r-img:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-input:10px;

  --sh-1:0 1px 2px rgba(18,16,22,.06);
  --sh-hover:0 18px 40px -24px rgba(90,45,224,.35);
  --sec:96px;
  --sec-m:56px;
}

/* ---------- base ---------- */
*,*::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:1.85;
  color:var(--ink-900);
  background:var(--bg-000);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink-900);}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;}
button{font-family:inherit;font-size:inherit;border:none;background:none;color:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15.5px;color:var(--ink-900);}
:focus-visible{outline:3px solid var(--accent-400);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 32px;}}
@media (min-width:1280px){.container{max-width:1280px;}}

.section{padding:var(--sec-m) 0;}
@media (min-width:1024px){.section{padding:var(--sec) 0;}}
.section--soft{background:var(--bg-050);}
.section--dark{background:var(--dark-band);color:#fff;}
.section--dark h2,.section--dark h3{color:#fff;}

.sec-head{max-width:760px;margin-bottom:36px;}
.sec-head .h2{font-size:26px;line-height:1.3;padding-left:14px;position:relative;letter-spacing:-.3px;}
.sec-head .h2::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:2px;background:var(--brand-600);}
.sec-head .sub{margin:12px 0 0;color:var(--muted-500);font-size:15px;line-height:1.8;}
@media (min-width:1024px){.sec-head .h2{font-size:28px;}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;letter-spacing:.2px;
  border:1px solid transparent;background:transparent;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,border-color .22s ease,color .22s ease;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--cta-500);color:#fff;box-shadow:0 1px 2px rgba(18,16,22,.06);}
.btn-primary:hover{background:#ff4a24;transform:translateY(-2px);box-shadow:0 18px 32px -20px rgba(255,92,57,.8);color:#fff;}
.btn-ghost{border-color:var(--line-200);color:var(--ink-900);background:#fff;}
.btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-600);transform:translateY(-2px);}
.btn-violet{background:var(--brand-600);color:#fff;}
.btn-violet:hover{background:var(--brand-500);transform:translateY(-2px);color:#fff;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}

/* ---------- promo bar ---------- */
.promo-bar{background:var(--dark-band);color:#fff;font-size:13px;position:relative;z-index:70;}
.promo-inner{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:36px;padding-top:4px;padding-bottom:4px;}
.promo-left{display:flex;align-items:center;gap:10px;min-width:0;}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent-400);box-shadow:0 0 0 3px rgba(185,242,39,.18);flex:none;}
.status-chip{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:var(--r-pill);
  font-size:11px;letter-spacing:1px;font-weight:600;white-space:nowrap;
}
.status-live{background:var(--accent-400);color:var(--ink-900);}
.status-soon{border:1px solid var(--brand-500);color:#C7B6FF;}
.status-done{background:rgba(255,255,255,.12);color:#B9B4C7;}
.promo-text{color:#CFC9DE;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.promo-right{display:flex;align-items:center;gap:12px;}
.promo-label{color:#9E97B3;font-size:12px;white-space:nowrap;}
.countdown{display:flex;align-items:center;gap:6px;font-family:var(--font-num);}
.cd-seg{display:inline-flex;align-items:baseline;gap:2px;background:rgba(185,242,39,.12);border:1px solid rgba(185,242,39,.3);color:var(--accent-400);border-radius:6px;padding:1px 7px;font-size:13px;font-weight:600;letter-spacing:.5px;}
.cd-seg i{font-style:normal;font-size:10px;opacity:.75;}
.promo-close{width:24px;height:24px;border-radius:6px;color:#9E97B3;font-size:16px;line-height:1;display:flex;align-items:center;justify-content:center;}
.promo-close:hover{background:rgba(255,255,255,.1);color:#fff;}
@media (max-width:767px){
  .promo-label{display:none;}
  .cd-seg[data-unit="d"]{display:none;}
  .promo-text{font-size:12px;}
}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line-200);transition:box-shadow .22s ease;}
.site-header.is-scrolled{box-shadow:0 8px 24px -18px rgba(18,16,22,.5);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px;}
.brand{display:flex;align-items:center;gap:11px;flex:none;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex:none;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-600);color:#fff;font-size:19px;font-weight:700;letter-spacing:-1px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:19px;font-weight:700;letter-spacing:-.3px;color:var(--ink-900);}
.brand-sub{font-size:10.5px;letter-spacing:2px;color:var(--muted-500);}
.nav-menu{display:none;align-items:center;gap:2px;}
.nav-menu a{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 13px;border-radius:var(--r-pill);
  font-size:15px;color:var(--ink-700);
}
.nav-menu a:hover{background:var(--bg-050);color:var(--brand-600);}
.nav-menu a.active{color:var(--brand-600);font-weight:600;}
.nav-menu a.active::after{content:"";position:absolute;left:13px;right:13px;bottom:-16px;height:3px;border-radius:2px;background:var(--brand-600);}
.nav-actions{display:flex;align-items:center;gap:8px;}
.icon-btn{
  width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line-200);color:var(--ink-700);background:#fff;
}
.icon-btn:hover{border-color:var(--brand-600);color:var(--brand-600);background:var(--bg-050);}
.nav-burger{display:flex;}
@media (min-width:1024px){
  .nav-menu{display:flex;}
  .nav-burger{display:none;}
  .nav-wrap{height:76px;}
}
.mobile-drawer{
  display:none;background:#fff;border-bottom:1px solid var(--line-200);
  padding:8px 0 18px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:block;padding:0 20px;line-height:48px;font-size:16px;color:var(--ink-700);
  border-bottom:1px solid var(--bg-050);
}
.mobile-drawer a:hover{color:var(--brand-600);background:var(--bg-050);}
.mobile-drawer .drawer-cta{margin:16px 20px 0;display:flex;justify-content:center;line-height:46px;border-bottom:none;}

/* ---------- breadcrumb ---------- */
.crumb{padding:18px 0 0;font-size:13.5px;color:var(--muted-500);}
.crumb a{color:var(--muted-500);}
.crumb a:hover{color:var(--brand-600);}
.crumb span.sep{margin:0 8px;color:var(--line-200);}
.crumb b{color:var(--ink-700);font-weight:600;}

/* ---------- hero ---------- */
.hero{position:relative;padding:36px 0 0;background:
  linear-gradient(180deg,var(--bg-050) 0%,rgba(246,244,251,0) 78%),
  url("/assets/images/backpic/back-1.webp") center/cover no-repeat;}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(90,45,224,.08);border:1px solid rgba(90,45,224,.22);color:var(--brand-600);
  font-size:12.5px;letter-spacing:.6px;font-weight:600;margin-bottom:18px;
}
.hero h1{font-size:30px;line-height:1.28;letter-spacing:-.5px;margin-bottom:16px;}
.hero-lead{font-size:16.5px;color:var(--ink-700);max-width:600px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-media{
  position:relative;margin:0;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line-200);box-shadow:var(--sh-1);background:var(--bg-000);
}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-media figcaption{
  position:absolute;left:14px;bottom:14px;
  background:rgba(23,18,31,.86);color:#fff;font-size:12.5px;letter-spacing:.4px;
  padding:6px 12px;border-radius:var(--r-pill);
}
.hero-badge{
  position:absolute;right:14px;top:14px;background:#fff;border:1px solid var(--line-200);
  border-radius:14px;padding:10px 14px;box-shadow:var(--sh-1);text-align:right;
}
.hero-badge .num{display:block;font-family:var(--font-num);font-size:22px;font-weight:700;line-height:1.1;color:var(--brand-600);}
.hero-badge .txt{font-size:11.5px;color:var(--muted-500);letter-spacing:.5px;}
@media (min-width:1024px){
  .hero{padding:64px 0 0;}
  .hero-grid{grid-template-columns:1.05fr .95fr;gap:56px;}
  .hero h1{font-size:40px;line-height:1.25;}
}

/* ---------- stat strip ---------- */
.stat-strip{
  margin-top:44px;background:var(--bg-000);border:1px solid var(--line-200);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  display:grid;grid-template-columns:1fr;overflow:hidden;
}
.stat{padding:22px 24px;border-bottom:1px solid var(--line-200);}
.stat:last-child{border-bottom:none;}
.stat-num{display:block;font-family:var(--font-num);font-size:30px;font-weight:700;line-height:1.1;letter-spacing:-.5px;color:var(--ink-900);}
.stat-label{display:block;margin-top:6px;font-size:13px;color:var(--muted-500);letter-spacing:.3px;}
@media (min-width:768px){
  .stat-strip{grid-template-columns:repeat(3,1fr);}
  .stat{border-bottom:none;border-right:1px solid var(--line-200);}
  .stat:last-child{border-right:none;}
}

/* ---------- generic cards ---------- */
.grid-3{display:grid;grid-template-columns:1fr;gap:22px;}
@media (min-width:768px){.grid-3{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.grid-3{grid-template-columns:repeat(3,1fr);}}

.grid-12{display:grid;grid-template-columns:1fr;gap:22px;}
@media (min-width:1024px){.grid-12{grid-template-columns:repeat(12,1fr);}
  .col-6{grid-column:span 6;}
  .col-3{grid-column:span 3;}
  .col-7{grid-column:span 7;}
  .col-5{grid-column:span 5;}
}

.card{
  background:var(--bg-000);border:1px solid var(--line-200);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(90,45,224,.3);}
.card h3{font-size:19px;line-height:1.4;margin-bottom:10px;}
.card p{color:var(--ink-700);font-size:15.5px;margin-bottom:0;}
.card-icon{
  width:44px;height:44px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:rgba(90,45,224,.08);color:var(--brand-600);font-size:18px;margin-bottom:16px;
}
.card--feature{
  background:linear-gradient(180deg,#fff 0%,var(--bg-050) 100%);
  border-color:rgba(90,45,224,.28);
}
.card--accent{position:relative;overflow:hidden;}
.card--accent::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--accent-400);}

.check-list{margin-top:16px;}
.check-list li{
  position:relative;padding:6px 0 6px 26px;font-size:15px;color:var(--ink-700);
}
.check-list li::before{
  content:"";position:absolute;left:2px;top:15px;width:12px;height:7px;
  border-left:2px solid var(--brand-600);border-bottom:2px solid var(--brand-600);
  transform:rotate(-45deg);border-radius:1px;
}

/* ---------- timeline ---------- */
.timeline{position:relative;margin-top:8px;padding-left:26px;}
.timeline::before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:2px;background:var(--line-200);}
.tl-item{position:relative;padding:0 0 30px 0;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-26px;top:7px;width:12px;height:12px;border-radius:50%;
  background:#fff;border:2px solid var(--brand-600);
}
.tl-year{font-family:var(--font-num);font-size:17px;font-weight:700;letter-spacing:.5px;color:var(--brand-600);}
.tl-text{margin-top:4px;color:var(--ink-700);font-size:15.5px;}

/* ---------- form ---------- */
.form-card{
  background:var(--bg-000);border:1px solid var(--line-200);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--muted-500);letter-spacing:.4px;margin-bottom:7px;}
.field input[type="text"],
.field input[type="email"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;border:1px solid var(--line-200);border-radius:var(--r-input);
  background:#fff;padding:0 14px;height:44px;line-height:44px;outline:none;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.field textarea{height:auto;min-height:112px;line-height:1.75;padding:11px 14px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(90,45,224,.12);}
.field-row{display:grid;grid-template-columns:1fr;gap:18px;}
@media (min-width:768px){.field-row{grid-template-columns:1fr 1fr;}}
.checkbox{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--muted-500);cursor:pointer;}
.checkbox input{
  appearance:none;-webkit-appearance:none;width:18px;height:18px;flex:none;margin-top:3px;
  border:1px solid var(--line-200);border-radius:5px;background:#fff;cursor:pointer;position:relative;
  transition:border-color .22s ease,background-color .22s ease;
}
.checkbox input:checked{background:var(--brand-600);border-color:var(--brand-600);}
.checkbox input:checked::after{
  content:"";position:absolute;left:5px;top:1px;width:6px;height:11px;
  border-right:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(42deg);
}
.form-error{
  display:none;margin:0 0 16px;padding:9px 12px;font-size:13.5px;color:var(--cta-500);
  border-left:3px solid var(--cta-500);background:rgba(255,92,57,.06);border-radius:0 8px 8px 0;
}
.form-error.show{display:block;}
.form-ok{
  display:none;margin:0 0 16px;padding:9px 12px;font-size:13.5px;color:#2E7D32;
  border-left:3px solid var(--accent-400);background:rgba(185,242,39,.14);border-radius:0 8px 8px 0;
}
.form-ok.show{display:block;}

.info-card{
  background:var(--dark-band);color:#fff;border-radius:var(--r-card);padding:28px;
  border:1px solid rgba(255,255,255,.08);
}
.info-card h3{color:#fff;font-size:19px;margin-bottom:18px;}
.info-list li{display:flex;gap:12px;padding:11px 0;border-bottom:1px solid rgba(255,255,255,.08);font-size:14.5px;color:#D6D1E4;}
.info-list li:last-child{border-bottom:none;}
.info-list i{color:var(--accent-400);width:18px;flex:none;margin-top:4px;}
.map-box{
  margin-top:20px;border:1px dashed rgba(255,255,255,.28);border-radius:var(--r-img);
  min-height:150px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  color:#9E97B3;font-size:13px;background:rgba(255,255,255,.03);
}
.map-box i{font-size:24px;color:var(--brand-500);}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line-200);}
.faq-item{border-bottom:1px solid var(--line-200);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  min-height:56px;padding:14px 6px;font-size:16.5px;font-weight:600;color:var(--ink-900);
}
.faq-q:hover{color:var(--brand-600);}
.q-badge{
  flex:none;display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:24px;border-radius:var(--r-pill);border:1px solid var(--brand-600);
  color:var(--brand-600);font-family:var(--font-num);font-size:12.5px;font-weight:700;letter-spacing:.5px;
}
.faq-a{display:none;padding:0 6px 22px 52px;}
.faq-item.open .faq-a{display:block;}
.faq-item.open .faq-q{color:var(--brand-600);}
.faq-a p{border-left:2px solid var(--brand-600);padding-left:14px;color:var(--ink-700);font-size:15.5px;margin-bottom:.6em;}
.faq-a p:last-child{margin-bottom:0;}

/* ---------- cta band ---------- */
.cta-band{background:var(--bg-050);border-top:1px solid var(--line-200);border-bottom:1px solid var(--line-200);}
.cta-inner{display:flex;flex-direction:column;gap:18px;padding:30px 0;}
.cta-inner h2{font-size:22px;line-height:1.4;letter-spacing:-.3px;}
.cta-inner p{margin:6px 0 0;color:var(--muted-500);font-size:14.5px;}
@media (min-width:768px){
  .cta-inner{flex-direction:row;align-items:center;justify-content:space-between;padding:34px 0;}
}

/* ---------- footer ---------- */
.site-footer{background:var(--dark-band);color:#C9C4D8;padding:56px 0 0;font-size:14.5px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;}}
.site-footer .brand-name{color:#fff;}
.site-footer .brand-sub{color:#8C86A0;}
.site-footer .brand-mark{background:var(--brand-600);}
.footer-desc{margin:16px 0 18px;color:#A9A3BC;font-size:14px;line-height:1.85;max-width:320px;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.14);color:#C9C4D8;
}
.footer-social a:hover{color:var(--accent-400);border-color:var(--accent-400);}
.footer-col h4{color:#fff;font-size:15px;letter-spacing:.4px;margin-bottom:14px;}
.footer-col a,.footer-col span{display:block;line-height:34px;color:#A9A3BC;font-size:14px;}
.footer-col a:hover{color:var(--accent-400);}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;
  display:flex;flex-direction:column;gap:8px;font-size:13px;color:#8C86A0;
}
@media (min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;}}

/* ---------- motion ---------- */
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}