/* roulang page: index */
:root{
  --brand:#5B21F0;
  --brand-deep:#4315C4;
  --brand-soft:#EDE7FF;
  --lime:#C8FF2E;
  --coral:#FF5A3C;
  --coral-deep:#E8412A;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --surface-2:#F1EEE8;
  --line:#E6E2DA;
  --ink:#16131C;
  --ink-2:#5B5766;
  --ink-3:#8E8A99;
  --ok:#2FA36B;
  --warn:#D98A00;
  --r-card:18px;
  --r-tall:20px;
  --r-pill:999px;
  --shadow-1:0 2px 8px rgba(22,19,28,.06);
  --shadow-2:0 12px 28px -10px rgba(22,19,28,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--brand-deep);text-decoration:underline;text-underline-offset:3px}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--lime);outline-offset:2px;border-radius:8px}
button{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-alt{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:14px;border:1.5px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(1px)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 8px 18px -10px rgba(255,90,60,.9)}
.btn-primary:hover{background:var(--coral-deep);color:#fff;box-shadow:0 12px 22px -10px rgba(255,90,60,.9)}
.btn-brand{background:var(--brand);color:#fff;box-shadow:0 8px 18px -10px rgba(91,33,240,.8)}
.btn-brand:hover{background:var(--brand-deep);color:#fff}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-deep)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink-2)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-sm{height:36px;padding:0 14px;font-size:13px;border-radius:12px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:18px;letter-spacing:-.3px}
.logo:hover{color:var(--ink);text-decoration:none}
.logo-mark{
  width:30px;height:30px;border-radius:9px;background:var(--brand);
  display:grid;place-items:center;flex:0 0 30px;box-shadow:0 4px 10px -4px rgba(91,33,240,.8);
}
.logo-mark i{color:var(--lime);font-size:11px;margin-left:1px}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:600;color:var(--ink-2)}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--lime);
  transition:width .22s var(--ease);
}
.nav-links a:hover{color:var(--brand);text-decoration:none}
.nav-links a:hover::after{width:100%}
.nav-links a.is-active{color:var(--brand)}
.nav-links a.is-active::after{width:20px;border-radius:3px}
.nav-right{display:flex;align-items:center;gap:16px}
.nav-cta{height:38px;padding:0 18px;border-radius:var(--r-pill);background:var(--coral);color:#fff;font-size:14px;font-weight:700;display:inline-flex;align-items:center;gap:6px;box-shadow:0 8px 18px -10px rgba(255,90,60,.95)}
.nav-cta:hover{background:var(--coral-deep);color:#fff;text-decoration:none;transform:translateY(-1px)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:12px;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.drawer-mask{
  position:fixed;inset:0;background:rgba(22,19,28,.45);opacity:0;visibility:hidden;
  transition:opacity .22s var(--ease),visibility .22s var(--ease);z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:82vw;max-width:360px;background:#fff;z-index:95;
  transform:translateX(100%);transition:transform .26s var(--ease);
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;cursor:pointer;display:grid;place-items:center;color:var(--ink-2)}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px}
.drawer-nav a{padding:15px 4px;border-bottom:1px solid var(--line);font-size:16px;font-weight:600;color:var(--ink-2)}
.drawer-nav a.is-active{color:var(--brand)}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}
.drawer-tags a{
  padding:8px 14px;border-radius:var(--r-pill);background:var(--brand-soft);color:var(--brand);
  font-size:13px;font-weight:700;
}
.drawer-tags a:hover{background:var(--brand);color:#fff;text-decoration:none}
.drawer-cta{margin-top:auto;width:100%}

/* ---------- Hero ---------- */
.hero{
  position:relative;padding:76px 0 88px;overflow:hidden;
  background:linear-gradient(135deg,#EDE7FF 0%,#F7F5F1 62%);
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.badge-live{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);font-size:13px;font-weight:700;color:var(--ink-2);
  box-shadow:var(--shadow-1);
}
.badge-live i{color:var(--coral);font-size:11px}
.hero-title{
  margin:20px 0 18px;
  font-size:clamp(30px,5.2vw,52px);
  font-weight:900;line-height:1.12;letter-spacing:-.5px;
}
.hero-title em{font-style:normal;position:relative;color:var(--brand)}
.hero-title em::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:10px;background:rgba(200,255,46,.55);z-index:-1;border-radius:4px;
}
.hero-lead{font-size:18px;line-height:1.7;color:var(--ink-2);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.stat{
  flex:1 1 0;min-width:118px;background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:14px 16px;box-shadow:var(--shadow-1);
}
.stat b{display:block;font-size:24px;font-weight:800;color:var(--brand);line-height:1.2}
.stat span{font-size:12px;font-weight:600;color:var(--ink-3)}
.hero-visual{display:flex;justify-content:flex-end;position:relative}
.phone{
  position:relative;width:100%;max-width:330px;aspect-ratio:9/16;border-radius:var(--r-tall);
  overflow:hidden;background:var(--surface-2);box-shadow:var(--shadow-2);
}
.phone img{width:100%;height:100%;object-fit:cover}
.phone::after{
  content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(22,19,28,.55),rgba(22,19,28,0) 55%);
}
.play-btn{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:64px;height:64px;border-radius:50%;background:rgba(255,255,255,.94);
  display:grid;place-items:center;box-shadow:0 0 0 7px rgba(200,255,46,.5);z-index:2;
  transition:transform .2s var(--ease);
}
.phone:hover .play-btn{transform:translate(-50%,-50%) scale(1.06)}
.play-btn i{color:var(--brand);font-size:20px;margin-left:3px}
.duration-chip{
  position:absolute;right:12px;bottom:12px;z-index:2;
  background:rgba(22,19,28,.78);color:#fff;font-size:12px;font-weight:700;
  padding:4px 10px;border-radius:8px;
}
.heart{position:absolute;color:rgba(255,255,255,.55);z-index:2}
.heart.h1{left:16px;bottom:96px;font-size:16px}
.heart.h2{left:34px;bottom:140px;font-size:11px}
.heart.h3{left:22px;bottom:186px;font-size:13px}

/* ---------- 板块标题 ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap}
.sec-title{position:relative;padding-left:16px;font-size:clamp(24px,3.2vw,34px);font-weight:800;line-height:1.2}
.sec-title::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:4px;background:var(--lime);
}
.sec-sub{margin-top:8px;font-size:14px;color:var(--ink-3)}
.sec-more{font-size:14px;font-weight:700;color:var(--brand);white-space:nowrap;display:inline-flex;align-items:center;gap:6px}
.sec-more:hover{text-decoration:none;color:var(--brand-deep)}
.sec-more i{font-size:11px;transition:transform .2s var(--ease)}
.sec-more:hover i{transform:translateX(3px)}

/* ---------- 横滑片段卡 ---------- */
.rail{
  display:flex;gap:16px;overflow-x:auto;padding:6px 4px 18px;
  scroll-snap-type:x mandatory;scrollbar-width:none;-ms-overflow-style:none;
}
.rail::-webkit-scrollbar{display:none}
.clip{
  position:relative;flex:0 0 220px;aspect-ratio:9/16;border-radius:var(--r-tall);overflow:hidden;
  scroll-snap-align:start;box-shadow:var(--shadow-1);background:var(--surface-2);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.clip img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease)}
.clip:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.clip:hover img{transform:scale(1.03)}
.clip-tag{
  position:absolute;left:10px;top:10px;z-index:2;padding:4px 10px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.92);color:var(--brand);font-size:11px;font-weight:800;
}
.clip-dur{
  position:absolute;right:10px;bottom:10px;z-index:2;padding:3px 8px;border-radius:8px;
  background:rgba(22,19,28,.72);color:#fff;font-size:11px;font-weight:700;
}
.clip-body{
  position:absolute;left:0;right:0;bottom:0;padding:14px 12px;z-index:1;
  background:linear-gradient(to top,rgba(22,19,28,.9),rgba(22,19,28,.05));
}
.clip-title{
  color:#fff;font-size:14px;font-weight:700;line-height:1.4;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.clip:hover .clip-body{padding-bottom:16px}

/* ---------- 编号种草清单 ---------- */
.picks{display:grid;grid-template-columns:1fr 1fr;gap:0 36px}
.pick{
  display:grid;grid-template-columns:46px 92px 1fr auto;gap:16px;align-items:center;
  padding:18px 8px;border-bottom:1px solid var(--line);border-radius:12px;
  transition:background .18s var(--ease);
}
.pick:hover{background:#F7F4FF}
.pick-num{
  font-size:24px;font-weight:900;color:var(--brand);line-height:1;
  font-family:"DIN Alternate","Barlow",ui-monospace,monospace;
}
.pick-thumb{width:92px;aspect-ratio:4/3;border-radius:12px;overflow:hidden;background:var(--surface-2)}
.pick-thumb img{width:100%;height:100%;object-fit:cover}
.pick-title{font-size:17px;font-weight:700;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pick-desc{margin-top:4px;font-size:14px;line-height:1.6;color:var(--ink-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pick-act{display:flex;flex-direction:column;gap:8px}

/* ---------- 最新信息（CMS） ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;height:100%;background:#fff;border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);border:1px solid var(--line);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.news-cover{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2)}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.news-card:hover .news-cover img{transform:scale(1.03)}
.news-body{display:flex;flex-direction:column;flex:1;padding:18px 18px 16px}
.news-cat{
  align-self:flex-start;padding:3px 10px;border-radius:8px;background:var(--brand-soft);
  color:var(--brand);font-size:12px;font-weight:700;margin-bottom:10px;
}
.news-title{
  font-size:17px;font-weight:700;line-height:1.45;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-title:hover{color:var(--brand);text-decoration:none}
.news-sum{
  margin-top:8px;font-size:14px;line-height:1.6;color:var(--ink-3);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
}
.news-time{font-size:12px;font-weight:600;color:var(--ink-3)}
.news-read{font-size:13px;font-weight:700;color:var(--brand)}
.news-read:hover{text-decoration:none;color:var(--brand-deep)}
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);padding:52px 24px;
}
.empty-art{
  width:86px;height:64px;border-radius:12px;
  background:var(--brand-soft);
  background-image:repeating-linear-gradient(45deg,rgba(200,255,46,.75) 0 6px,transparent 6px 14px);
}
.empty-state p{font-size:15px;color:var(--ink-2)}

/* ---------- 口碑条 ---------- */
.quote-marquee{overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent)}
.quote-track{display:flex;gap:16px;width:max-content;animation:qdrift 46s linear infinite}
.quote-marquee:hover .quote-track,.quote-marquee:focus-within .quote-track{animation-play-state:paused}
@keyframes qdrift{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){.quote-track{animation:none}}
.quote{
  flex:0 0 300px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px;box-shadow:var(--shadow-1);
}
.quote-top{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:0 0 40px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-weight:800;font-size:15px;
}
.quote-name{font-size:14px;font-weight:700}
.quote-stars{font-size:11px;color:var(--lime);letter-spacing:2px;text-shadow:0 0 0 var(--ink)}
.quote-stars i{color:var(--warn)}
.quote-text{font-size:14px;line-height:1.65;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.quote-count{font-size:13px;color:var(--ink-3);font-weight:600}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-tall);background:var(--coral);color:#fff;
  padding:40px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 24px 48px -28px rgba(255,90,60,.85);
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(115deg,rgba(255,255,255,.14) 0 2px,transparent 2px 16px);
  opacity:.5;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.8vw,30px);font-weight:800;line-height:1.25;position:relative;z-index:1}
.cta-band p{margin-top:8px;font-size:15px;color:rgba(255,255,255,.9);position:relative;z-index:1}
.trust-row{display:flex;flex-wrap:wrap;gap:20px;margin-top:18px;position:relative;z-index:1}
.trust-item{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:rgba(255,255,255,.95)}
.trust-item i{color:var(--lime)}
.cta-band .btn{position:relative;z-index:1;background:#fff;color:var(--coral-deep);flex:0 0 auto}
.cta-band .btn:hover{background:#fff;color:var(--coral-deep);box-shadow:0 12px 22px -12px rgba(0,0,0,.5)}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px}
.faq-item{
  background:#fff;border-radius:16px;border:1px solid var(--line);border-left:3px solid transparent;
  margin-bottom:12px;box-shadow:var(--shadow-1);overflow:hidden;transition:border-color .2s var(--ease);
}
.faq-item[open]{border-left-color:var(--lime)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:16px;font-weight:700;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--brand);font-size:22px;font-weight:700;line-height:1}
.faq-item[open] summary::after{content:"−"}
.faq-body{padding:0 20px 20px;font-size:15px;line-height:1.75;color:var(--ink-2)}

/* ---------- 页脚 ---------- */
.site-footer{background:#16131C;color:#B9B4C4;padding:64px 0 0;margin-top:0}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px}
.footer-brand:hover{color:#fff;text-decoration:none}
.footer-brand .logo-mark{box-shadow:none}
.f-intro{margin-top:14px;font-size:14px;line-height:1.7;color:#B9B4C4;max-width:280px}
.f-social{display:flex;gap:10px;margin-top:18px}
.f-social a{
  width:38px;height:38px;border-radius:12px;background:rgba(255,255,255,.08);display:grid;place-items:center;
  color:#B9B4C4;transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.f-social a:hover{background:var(--brand);color:#fff;transform:translateY(-2px)}
.f-col{padding-right:24px}
.f-title{font-size:14px;font-weight:700;color:var(--lime);margin-bottom:16px}
.f-links{display:flex;flex-direction:column;gap:10px}
.f-links a{font-size:14px;color:#B9B4C4;transition:color .18s var(--ease),transform .18s var(--ease);display:inline-block}
.f-links a:hover{color:var(--lime);transform:translateX(3px);text-decoration:none}
.qr-box{
  width:112px;height:112px;border-radius:14px;background:rgba(255,255,255,.08);
  background-image:repeating-linear-gradient(45deg,rgba(200,255,46,.35) 0 5px,transparent 5px 12px);
  display:grid;place-items:center;color:#fff;font-size:12px;font-weight:700;text-align:center;
}
.f-note{margin-top:12px;font-size:13px;color:#8E8A99;line-height:1.7}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.1);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8E8A99;
}
.to-top{
  position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:14px;
  background:var(--brand);color:#fff;border:none;display:grid;place-items:center;cursor:pointer;
  box-shadow:var(--shadow-2);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s var(--ease);z-index:70;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--brand-deep)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .nav-inner{height:56px}
  .section{padding:72px 0}
  .hero{padding:56px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{order:2;justify-content:center}
  .phone{max-width:300px;margin:0 auto}
  .picks{grid-template-columns:1fr;gap:0}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .f-col{padding-right:0;margin-bottom:32px}
  .cta-band{padding:32px}
}
@media (max-width:639px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .hero-title{margin:16px 0 14px}
  .hero-lead{font-size:16px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-stats{gap:10px}
  .stat{flex:1 1 44%;min-width:0;padding:12px 14px}
  .stat b{font-size:20px}
  .sec-head{margin-bottom:24px}
  .sec-more{font-size:13px}
  .clip{flex:0 0 168px}
  .pick{grid-template-columns:30px 68px 1fr;gap:12px;padding:16px 6px}
  .pick-num{font-size:19px}
  .pick-thumb{width:68px}
  .pick-title{font-size:15px}
  .pick-desc{font-size:13px}
  .pick-act{grid-column:3;flex-direction:row;margin-top:6px}
  .news-grid{grid-template-columns:1fr}
  .quote{flex:0 0 260px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 22px}
  .cta-band .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .to-top{right:16px;bottom:18px}
  body{font-size:15px}
}

/* roulang page: article */
:root{
  --brand:#5B21F0;
  --brand-dark:#4315C4;
  --brand-light:#EDE7FF;
  --brand-tint:#F7F4FF;
  --lime:#C8FF2E;
  --coral:#FF5A3C;
  --coral-dark:#E8412A;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --surface-2:#F1EEE8;
  --line:#E6E2DA;
  --ink:#16131C;
  --ink-2:#5B5766;
  --ink-3:#8E8A99;
  --success:#2FA36B;
  --warn:#D98A00;
  --r-card:18px;
  --r-vert:20px;
  --r-btn:14px;
  --r-btn2:12px;
  --r-tag:8px;
  --shadow-1:0 2px 8px rgba(22,19,28,.06);
  --shadow-2:0 12px 28px -10px rgba(22,19,28,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --pad-section:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .18s var(--ease),text-underline-offset .18s var(--ease);}
a:hover{color:var(--brand-dark);}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--lime);outline-offset:2px;border-radius:6px;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:-.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.container-narrow{max-width:900px;margin:0 auto;padding:0 24px;width:100%;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;border:1.5px solid transparent;
  cursor:pointer;transition:transform .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  white-space:nowrap;
}
.btn i{font-size:14px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;box-shadow:var(--shadow-2);}
.btn-coral{background:var(--coral);color:#fff;box-shadow:var(--shadow-1);}
.btn-coral:hover{background:var(--coral-dark);color:#fff;box-shadow:var(--shadow-2);}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-outline:hover{background:var(--brand-tint);color:var(--brand-dark);border-color:var(--brand-dark);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{background:var(--surface-2);color:var(--ink);}
.btn:active{transform:translateY(1px);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:var(--r-btn2);}
.btn-block{width:100%;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:20px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:18px;letter-spacing:-.3px;}
.brand:hover{color:var(--ink);}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;color:var(--lime);font-size:12px;
  flex:0 0 auto;box-shadow:0 4px 12px -4px rgba(91,33,240,.6);
}
.brand-text{white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-links a{
  position:relative;font-size:15px;font-weight:600;color:var(--ink-2);padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--lime);
  transition:width .22s var(--ease);border-radius:2px;
}
.nav-links a:hover{color:var(--brand);}
.nav-links a:hover::after{width:100%;}
.nav-links a.is-active{color:var(--brand);}
.nav-links a.is-active::after{width:20px;height:3px;background:var(--lime);}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:12px;
  padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;top:0;right:0;height:100%;width:82vw;max-width:340px;background:#fff;z-index:90;
  transform:translateX(102%);transition:transform .28s var(--ease);
  padding:22px 20px 28px;overflow-y:auto;box-shadow:-12px 0 30px -18px rgba(22,19,28,.4);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-title{font-size:15px;font-weight:800;color:var(--ink);}
.drawer-close{width:38px;height:38px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--ink-2);cursor:pointer;}
.drawer-links{display:flex;flex-direction:column;}
.drawer-links a{
  padding:14px 2px;border-bottom:1px solid var(--line);font-size:16px;font-weight:600;color:var(--ink);
}
.drawer-links a:hover{color:var(--brand);}
.drawer-links a.is-active{color:var(--brand);}
.drawer-chips{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 22px;}
.chip{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--ink-2);font-size:13px;font-weight:600;
  transition:all .18s var(--ease);
}
.chip:hover{background:var(--brand-tint);color:var(--brand);border-color:var(--brand-light);}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(22,19,28,.45);z-index:80;opacity:0;visibility:hidden;
  transition:opacity .25s var(--ease),visibility .25s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ---------- breadcrumb ---------- */
.crumbs{padding:22px 0 0;}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);}
.crumbs li{display:flex;align-items:center;gap:8px;}
.crumbs li::after{content:"/";color:#CFCAC2;}
.crumbs li:last-child::after{display:none;}
.crumbs a{color:var(--ink-2);font-weight:600;}
.crumbs a:hover{color:var(--brand);}
.crumbs .crumb-current{color:var(--ink-3);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- article layout ---------- */
.article-wrap{padding:26px 0 0;}
.layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:44px;align-items:start;}

.article-head{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 30px;box-shadow:var(--shadow-1);
}
.head-cover{
  border-radius:var(--r-card);overflow:hidden;aspect-ratio:16/9;background:var(--brand-light);
  margin-bottom:22px;position:relative;
}
.head-cover img{width:100%;height:100%;object-fit:cover;}
.head-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(22,19,28,0) 55%,rgba(22,19,28,.28) 100%);
  pointer-events:none;
}
.pill-cat{
  display:inline-flex;align-items:center;gap:7px;height:28px;padding:0 12px;border-radius:var(--r-tag);
  background:var(--brand-light);color:var(--brand-dark);font-size:12px;font-weight:700;letter-spacing:.2px;
}
.article-head h1{
  margin:14px 0 16px;font-size:clamp(28px,4.2vw,42px);font-weight:900;line-height:1.16;letter-spacing:-.5px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  color:var(--ink-3);font-size:13px;font-weight:600;
  padding-top:16px;border-top:1px solid var(--line);
}
.meta-row .sep{width:1px;height:12px;background:var(--line);display:inline-block;}
.meta-row i{color:var(--brand);margin-right:5px;font-size:12px;}

/* ---------- article body ---------- */
.article-panel{
  margin-top:22px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px;box-shadow:var(--shadow-1);
}
.article-body{font-size:16px;line-height:1.85;color:var(--ink);max-width:760px;margin:0 auto;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;font-size:23px;font-weight:800;line-height:1.3;margin:40px 0 16px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;width:4px;height:22px;border-radius:2px;background:var(--brand);
}
.article-body h3{font-size:18px;font-weight:700;margin:28px 0 12px;}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:2px;}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:8px;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:11px;width:8px;height:8px;border-radius:50%;
  background:var(--lime);box-shadow:0 0 0 3px rgba(200,255,46,.24);
}
.article-body ol{counter-reset:olc;}
.article-body ol li{position:relative;padding-left:28px;margin-bottom:10px;counter-increment:olc;}
.article-body ol li::before{
  content:counter(olc);position:absolute;left:0;top:2px;width:20px;height:20px;border-radius:6px;
  background:var(--brand-light);color:var(--brand-dark);font-size:12px;font-weight:800;
  display:flex;align-items:center;justify-content:center;line-height:1;
}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;background:var(--brand-tint);border-left:4px solid var(--lime);
  border-radius:0 12px 12px 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:14px;margin:22px auto;width:100%;height:auto;}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px;}
.article-body a{color:var(--brand);text-decoration:underline;text-decoration-thickness:1px;text-decoration-color:rgba(91,33,240,.35);text-underline-offset:3px;}
.article-body a:hover{color:var(--brand-dark);text-decoration-color:var(--brand-dark);}
.article-body table{
  width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px;display:block;overflow-x:auto;
  border:1px solid var(--line);border-radius:12px;
}
.article-body thead{background:var(--brand-light);}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap;}
.article-body tbody tr:nth-child(even){background:#FBFAF8;}
.article-body code{
  background:var(--surface-2);padding:2px 6px;border-radius:6px;font-size:14px;
  font-family:"DIN Alternate","Barlow",ui-monospace,SFMono-Regular,Menlo,monospace;
}
.article-body pre{
  background:#16131C;color:#F2EFFA;padding:16px 18px;border-radius:12px;overflow-x:auto;margin:22px 0;
  font-size:14px;line-height:1.7;
}
.article-body pre code{background:transparent;color:inherit;padding:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

/* ---------- empty state ---------- */
.empty-state{
  text-align:center;padding:52px 24px;background:var(--surface);border:1px dashed var(--line);
  border-radius:var(--r-card);max-width:760px;margin:0 auto;
}
.empty-art{
  width:110px;height:80px;margin:0 auto 18px;border-radius:14px;border:2px dashed var(--brand-light);
  background:repeating-linear-gradient(45deg,#F7F4FF,#F7F4FF 8px,#EDE7FF 8px,#EDE7FF 16px);
}
.empty-state h2{font-size:20px;font-weight:800;margin-bottom:8px;}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:20px;}
.empty-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;}

/* ---------- ending + nav cards ---------- */
.end-cta{
  margin-top:24px;background:var(--brand-light);border-radius:var(--r-card);padding:22px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
}
.end-cta strong{display:block;font-size:17px;font-weight:800;color:var(--ink);}
.end-cta span{display:block;font-size:14px;color:var(--ink-2);margin-top:4px;}

.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px;}
.post-nav a{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 20px;box-shadow:var(--shadow-1);color:var(--ink);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.post-nav a:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--brand-light);color:var(--ink);}
.post-nav .pn-label{display:block;font-size:12px;font-weight:700;color:var(--brand);margin-bottom:6px;letter-spacing:.4px;}
.post-nav .pn-title{font-size:15.5px;font-weight:700;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-nav .pn-next{text-align:right;}

/* ---------- sidebar ---------- */
.sidebar{display:flex;flex-direction:column;gap:20px;position:sticky;top:84px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--shadow-1);
}
.side-title{
  display:flex;align-items:center;gap:8px;font-size:15px;font-weight:800;margin-bottom:14px;
}
.side-title::before{content:"";width:4px;height:15px;border-radius:2px;background:var(--lime);display:inline-block;}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:block;font-size:14px;color:var(--ink-2);font-weight:600;padding:7px 0 7px 12px;
  border-left:2px solid var(--line);transition:all .18s var(--ease);
}
.toc-list a:hover{color:var(--brand);border-left-color:var(--lime);background:var(--brand-tint);}
.mini-list{display:flex;flex-direction:column;gap:14px;}
.mini-item{display:flex;gap:12px;align-items:flex-start;}
.mini-thumb{
  width:64px;height:64px;flex:0 0 64px;border-radius:12px;overflow:hidden;background:var(--brand-light);
}
.mini-thumb img{width:100%;height:100%;object-fit:cover;}
.mini-item:hover .mini-thumb img{transform:scale(1.06);transition:transform .3s var(--ease);}
.mini-body{min-width:0;}
.mini-title{
  font-size:14px;font-weight:700;line-height:1.45;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.mini-item:hover .mini-title{color:var(--brand);}
.mini-time{font-size:12px;color:var(--ink-3);margin-top:4px;font-weight:600;}
.tag-group{display:flex;flex-wrap:wrap;gap:8px;}
.tag-group a{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:999px;
  border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--ink-2);background:#fff;
  transition:all .18s var(--ease);
}
.tag-group a:hover{background:var(--brand-tint);border-color:var(--brand-light);color:var(--brand);}

/* ---------- section heading ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:24px;}
.sec-head h2{
  position:relative;font-size:clamp(22px,2.6vw,30px);font-weight:800;line-height:1.25;padding-left:16px;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:8px;width:4px;height:22px;border-radius:2px;background:var(--lime);
}
.sec-head .sec-more{font-size:14px;font-weight:700;color:var(--brand);white-space:nowrap;}
.sec-head .sec-more:hover{color:var(--brand-dark);}
.sec-sub{color:var(--ink-2);font-size:14.5px;margin-top:8px;}

/* ---------- related cards ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.rel-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.rel-cover{aspect-ratio:16/9;overflow:hidden;background:var(--brand-light);}
.rel-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.rel-card:hover .rel-cover img{transform:scale(1.04);}
.rel-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1;}
.rel-body .rel-title{
  font-size:16.5px;font-weight:700;line-height:1.4;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-card:hover .rel-title{color:var(--brand);}
.rel-body .rel-desc{
  font-size:13.5px;color:var(--ink-3);line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--ink-3);font-weight:600;margin-top:auto;}
.rel-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}

/* ---------- FAQ ---------- */
.faq{padding-top:var(--pad-section);}
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:860px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);overflow:hidden;position:relative;transition:border-color .2s var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--lime);
  transform:scaleY(0);transform-origin:top;transition:transform .22s var(--ease);
}
.faq-item.is-open::before{transform:scaleY(1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;padding:18px 20px;text-align:left;cursor:pointer;
  font-size:16px;font-weight:700;color:var(--ink);line-height:1.5;
}
.faq-q:hover{color:var(--brand);}
.faq-q .fx{
  flex:0 0 24px;width:24px;height:24px;border-radius:8px;background:var(--brand-light);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;
  transition:transform .22s var(--ease),background .22s var(--ease);
}
.faq-item.is-open .fx{background:var(--brand);color:#fff;transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease);}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.75;color:var(--ink-2);}

/* ---------- CTA band ---------- */
.cta-band{
  margin-top:var(--pad-section);
  background:linear-gradient(120deg,var(--brand) 0%,var(--brand-dark) 100%);
  border-radius:var(--r-vert);padding:40px;color:#fff;position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;top:-40px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,255,46,.28),transparent 70%);
}
.cta-band h2{font-size:clamp(22px,2.8vw,30px);font-weight:800;line-height:1.25;position:relative;}
.cta-band .cta-sub{margin-top:10px;font-size:15px;color:rgba(255,255,255,.82);}
.trust-row{display:flex;flex-wrap:wrap;gap:18px;margin-top:16px;position:relative;}
.trust-row span{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;color:rgba(255,255,255,.9);font-weight:600;}
.trust-row i{color:var(--lime);font-size:13px;}

/* ---------- footer ---------- */
.site-footer{background:#16131C;color:#B9B4C4;padding:64px 0 24px;margin-top:var(--pad-section);position:relative;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;margin-bottom:14px;}
.footer-brand:hover{color:var(--lime);}
.footer-brand .logo-mark{background:var(--brand);}
.f-intro{font-size:14px;line-height:1.75;color:#B9B4C4;max-width:280px;}
.f-social{display:flex;gap:10px;margin-top:16px;}
.f-social a{
  width:38px;height:38px;border-radius:12px;background:rgba(255,255,255,.06);color:#B9B4C4;
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.f-social a:hover{background:var(--brand);color:#fff;transform:translateY(-2px);}
.f-title{font-size:14px;font-weight:700;color:var(--lime);margin-bottom:14px;}
.f-links{display:flex;flex-direction:column;gap:10px;}
.f-links a{font-size:14px;color:#B9B4C4;transition:color .18s var(--ease),transform .18s var(--ease);}
.f-links a:hover{color:var(--lime);transform:translateX(3px);}
.qr-box{
  width:120px;height:120px;border-radius:14px;background:rgba(255,255,255,.06);
  border:1px dashed rgba(200,255,46,.35);display:flex;align-items:center;justify-content:center;
  font-size:13px;color:#B9B4C4;text-align:center;padding:10px;line-height:1.5;
}
.f-note{font-size:13px;color:#8E8A99;line-height:1.7;margin-top:14px;max-width:280px;}
.f-col{margin-bottom:32px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(255,255,255,.08);padding-top:20px;font-size:13px;color:#8E8A99;
}
.to-top{
  position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:14px;border:0;
  background:var(--brand);color:#fff;font-size:16px;cursor:pointer;z-index:70;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s var(--ease),background .2s var(--ease);
  box-shadow:var(--shadow-2);
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand-dark);}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  :root{--pad-section:72px;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .layout{grid-template-columns:1fr;gap:28px;}
  .sidebar{position:static;top:auto;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .article-head{padding:24px;}
  .article-panel{padding:24px;}
}
@media (max-width:639px){
  :root{--pad-section:56px;}
  .container{padding:0 20px;}
  .header-inner{height:56px;}
  .brand{font-size:16px;}
  .brand-text{max-width:52vw;overflow:hidden;text-overflow:ellipsis;}
  .header-actions .btn{display:none;}
  .btn{height:48px;}
  .btn-sm{height:42px;}
  .article-head{padding:20px 18px;}
  .article-panel{padding:20px 18px;}
  .article-body{font-size:15.5px;line-height:1.8;}
  .article-body h2{font-size:20px;margin-top:32px;}
  .article-body h3{font-size:17px;}
  .article-body th,.article-body td{white-space:normal;}
  .related-grid{grid-template-columns:1fr;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav .pn-next{text-align:left;}
  .cta-band{padding:26px 20px;}
  .end-cta{padding:18px;}
  .end-cta .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .to-top{right:16px;bottom:18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --brand:#5B21F0;
  --brand-dark:#4315C4;
  --brand-light:#EDE7FF;
  --brand-tint:#F7F4FF;
  --lime:#C8FF2E;
  --coral:#FF5A3C;
  --coral-dark:#E8412A;
  --bg:#F7F5F1;
  --card:#FFFFFF;
  --surface:#F1EEE8;
  --line:#E6E2DA;
  --ink:#16131C;
  --text-2:#5B5766;
  --text-3:#8E8A99;
  --ok:#2FA36B;
  --warn:#D98A00;
  --r-card:18px;
  --r-card-tall:20px;
  --r-btn:14px;
  --r-btn-sm:12px;
  --r-tag:8px;
  --shadow-1:0 2px 8px rgba(22,19,28,.06);
  --shadow-2:0 12px 28px -10px rgba(22,19,28,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gutter:24px;
  --sec-y:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s var(--ease),text-underline-offset .18s var(--ease);}
a:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--gutter);}
.container-narrow{max-width:760px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.header-inner{
  display:flex;align-items:center;gap:28px;
  min-height:64px;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto;}
.brand:hover{color:var(--ink);text-decoration:none;}
.logo-mark{
  width:32px;height:32px;border-radius:9px;
  background:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--lime);font-size:13px;
  box-shadow:0 4px 12px -4px rgba(91,33,240,.5);
}
.brand-text{font-weight:800;font-size:18px;letter-spacing:-.2px;}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto;}
.nav-links a{
  position:relative;
  font-size:15px;font-weight:600;color:var(--text-2);
  padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-links a:hover{color:var(--brand);text-decoration:none;}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--brand);}
.nav-links a.is-active::after{
  transform:scaleX(1);
  width:20px;right:auto;height:3px;border-radius:3px;
}
.nav-cta{flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;margin-left:auto;
  background:transparent;border:0;border-radius:12px;
  cursor:pointer;padding:10px;
}
.nav-toggle span{
  display:block;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle span+span{margin-top:5px;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.nav-toggle:focus-visible{outline:3px solid var(--lime);outline-offset:2px;}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(22,19,28,.45);
  opacity:0;visibility:hidden;transition:opacity .22s var(--ease),visibility .22s;
  z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;
  background:#fff;z-index:95;
  transform:translateX(100%);
  transition:transform .26s var(--ease);
  display:flex;flex-direction:column;
  padding:20px 20px 24px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);cursor:pointer;
}
.drawer-close:focus-visible{outline:3px solid var(--lime);outline-offset:2px;}
.drawer nav a{
  display:block;padding:14px 4px;font-size:16px;font-weight:600;
  color:var(--text-2);border-bottom:1px solid var(--line);
}
.drawer nav a.is-active{color:var(--brand);}
.drawer-cta{margin-top:20px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;cursor:pointer;
  border:1.5px solid transparent;transition:background .18s var(--ease),color .18s var(--ease),box-shadow .18s var(--ease),transform .12s var(--ease),border-color .18s var(--ease);
  text-decoration:none;white-space:nowrap;
}
.btn:hover{text-decoration:none;}
.btn:focus-visible{outline:3px solid var(--lime);outline-offset:2px;}
.btn:active{transform:translateY(1px);}
.btn-coral{background:var(--coral);color:#fff;}
.btn-coral:hover{background:var(--coral-dark);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);color:#fff;box-shadow:var(--shadow-1);}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-outline:hover{background:var(--brand-tint);color:var(--brand-dark);border-color:var(--brand-dark);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-sm{height:34px;padding:0 14px;font-size:13px;border-radius:var(--r-btn-sm);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

/* ---------- tags & pills ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 10px;border-radius:var(--r-tag);
  font-size:12px;font-weight:600;letter-spacing:.2px;
  background:var(--brand-light);color:var(--brand-dark);
}
.tag-lime{background:var(--lime);color:var(--ink);}
.tag-line{background:#fff;border:1px solid var(--line);color:var(--text-2);}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  height:36px;padding:0 16px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--text-2);
  font-size:13px;font-weight:600;cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.pill:hover{background:var(--brand-tint);color:var(--brand);border-color:var(--brand-light);}
.pill.is-active{background:var(--brand);border-color:var(--brand);color:#fff;}
.pill:focus-visible{outline:3px solid var(--lime);outline-offset:2px;}

/* ---------- section head ---------- */
.section{padding:var(--sec-y) 0;}
.section-alt{background:var(--surface);}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:28px;
}
.sec-head h2{
  position:relative;padding-left:14px;
  font-size:clamp(24px,3.2vw,34px);font-weight:800;line-height:1.2;letter-spacing:-.4px;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;
  background:var(--lime);
}
.sec-sub{margin-top:8px;font-size:14px;color:var(--text-3);}
.sec-link{font-size:14px;font-weight:700;color:var(--brand);}
.sec-link:hover{color:var(--brand-dark);}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  padding:18px 0 0;
  font-size:13px;color:var(--text-3);
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#CFCAC0;}
.breadcrumb .cur{color:var(--text-3);}

/* ---------- page head (紧凑型) ---------- */
.page-head{padding:26px 0 34px;background:linear-gradient(180deg,var(--brand-light) 0%,rgba(237,231,255,0) 100%);}
.page-head-row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:32px;
  margin-top:18px;
}
.page-head h1{
  font-size:clamp(30px,5.2vw,52px);
  font-weight:900;line-height:1.12;letter-spacing:-.5px;
  margin-bottom:14px;
}
.page-head h1 em{font-style:normal;color:var(--brand);}
.page-sub{max-width:640px;font-size:16px;color:var(--text-2);}
.head-stats{display:flex;gap:28px;flex-wrap:wrap;margin-top:22px;}
.head-stat b{display:block;font-size:22px;font-weight:900;letter-spacing:-.5px;font-variant-numeric:tabular-nums;}
.head-stat span{font-size:13px;color:var(--text-3);}
.sort-box{
  flex:0 0 auto;background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:14px 16px;box-shadow:var(--shadow-1);min-width:240px;
}
.sort-box .sort-label{font-size:12px;font-weight:700;color:var(--text-3);margin-bottom:10px;letter-spacing:.4px;}

/* ---------- vertical card grid ---------- */
.v-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.v-card{
  background:var(--card);border-radius:var(--r-card-tall);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
  display:flex;flex-direction:column;
}
.v-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.v-thumb{
  position:relative;display:block;aspect-ratio:9/16;
  background:var(--brand-light);overflow:hidden;
  background-image:repeating-linear-gradient(45deg,rgba(200,255,46,.35) 0 8px,rgba(200,255,46,0) 8px 16px);
}
.v-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s var(--ease);}
.v-card:hover .v-thumb img{transform:scale(1.03);}
.v-thumb::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:44%;
  background:linear-gradient(180deg,rgba(22,19,28,0) 0%,rgba(22,19,28,.62) 100%);
  pointer-events:none;
}
.v-cat{
  position:absolute;top:10px;left:10px;z-index:2;
  height:24px;padding:0 9px;border-radius:6px;
  background:rgba(255,255,255,.92);color:var(--brand-dark);
  font-size:11.5px;font-weight:700;display:inline-flex;align-items:center;
}
.v-time{
  position:absolute;right:10px;bottom:10px;z-index:2;
  height:24px;padding:0 9px;border-radius:6px;
  background:rgba(22,19,28,.66);color:#fff;font-size:11.5px;font-weight:700;
  display:inline-flex;align-items:center;
}
.v-play{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:52px;height:52px;border-radius:50%;
  background:rgba(255,255,255,.94);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:16px;
  box-shadow:0 0 0 4px rgba(200,255,46,.85);
  opacity:0;transition:opacity .2s var(--ease);
}
.v-card:hover .v-play{opacity:1;}
.v-body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:8px;flex:1;}
.v-title{font-size:17px;font-weight:700;line-height:1.4;}
.v-title a{color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.v-title a:hover{color:var(--brand);text-decoration:none;}
.v-meta{font-size:12.5px;color:var(--text-3);display:flex;gap:10px;align-items:center;margin-top:auto;}

/* ---------- review slider ---------- */
.scroll-x{
  display:flex;gap:18px;overflow-x:auto;padding:6px 4px 16px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
  scrollbar-width:none;
}
.scroll-x::-webkit-scrollbar{height:0;}
.review-card{
  flex:0 0 300px;scroll-snap-align:start;
  background:#fff;border-radius:var(--r-card);box-shadow:var(--shadow-1);
  padding:18px;
}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:10px;}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:0 0 auto;
  background:var(--brand-light);color:var(--brand-dark);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;
}
.review-name{font-size:14px;font-weight:700;}
.review-badge{font-size:12px;color:var(--text-3);}
.review-text{font-size:14px;line-height:1.6;color:var(--text-2);}
.review-stars{color:var(--warn);font-size:12px;letter-spacing:1px;margin-top:10px;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;}
.faq-item{
  background:#fff;border-radius:var(--r-card);box-shadow:var(--shadow-1);
  overflow:hidden;border-left:3px solid transparent;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item.is-open{border-left-color:var(--lime);box-shadow:var(--shadow-2);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:700;color:var(--ink);line-height:1.5;
}
.faq-q:focus-visible{outline:3px solid var(--lime);outline-offset:-3px;}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.faq-item.is-open .faq-icon{background:var(--brand);color:#fff;transform:rotate(45deg);}
.faq-a{display:none;padding:0 20px 20px;font-size:15px;color:var(--text-2);}
.faq-item.is-open .faq-a{display:block;}

/* ---------- recommend cards ---------- */
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rec-card{
  background:#fff;border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.rec-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.rec-thumb{aspect-ratio:16/9;background:var(--brand-light);overflow:hidden;}
.rec-thumb img{width:100%;height:100%;object-fit:cover;}
.rec-body{padding:16px 18px 18px;}
.rec-body h3{font-size:17px;font-weight:700;line-height:1.4;margin-bottom:8px;}
.rec-body h3 a{color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rec-body h3 a:hover{color:var(--brand);text-decoration:none;}
.rec-body p{font-size:14px;color:var(--text-3);}
.rec-foot{display:flex;align-items:center;justify-content:space-between;margin-top:14px;font-size:12.5px;color:var(--text-3);}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--coral);border-radius:20px;
  padding:40px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(115deg,rgba(255,255,255,.09) 0 10px,rgba(255,255,255,0) 10px 26px);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,3vw,30px);font-weight:800;line-height:1.25;letter-spacing:-.3px;}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.92);}
.cta-points{display:flex;flex-wrap:wrap;gap:18px;margin-top:16px;font-size:13.5px;font-weight:600;}
.cta-points i{color:var(--lime);margin-right:6px;}
.cta-band .btn-white{background:#fff;color:var(--coral-dark);position:relative;z-index:2;}
.cta-band .btn-white:hover{background:#FFF3F0;color:var(--coral-dark);}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#B9B4C4;padding:64px 0 28px;margin-top:0;}
.site-footer .f-col{padding-bottom:26px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:14px;}
.footer-brand:hover{color:#fff;text-decoration:none;}
.footer-brand .logo-mark{background:var(--brand);}
.f-intro{font-size:14px;line-height:1.7;color:#B9B4C4;max-width:280px;}
.f-social{display:flex;gap:10px;margin-top:16px;}
.f-social a{
  width:36px;height:36px;border-radius:10px;
  background:rgba(255,255,255,.08);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:14px;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.f-social a:hover{background:var(--lime);color:var(--ink);text-decoration:none;}
.f-title{font-size:14px;font-weight:700;color:var(--lime);margin-bottom:14px;}
.f-links{display:flex;flex-direction:column;gap:10px;}
.f-links a{font-size:14px;color:#B9B4C4;transition:color .18s var(--ease),transform .18s var(--ease);}
.f-links a:hover{color:var(--lime);transform:translateX(3px);text-decoration:none;}
.qr-box{
  width:118px;height:118px;border-radius:14px;
  background:repeating-linear-gradient(45deg,rgba(200,255,46,.16) 0 8px,rgba(200,255,46,0) 8px 16px);
  border:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:center;
  font-size:12.5px;color:#B9B4C4;text-align:center;padding:10px;line-height:1.5;
}
.f-note{margin-top:14px;font-size:13px;line-height:1.7;color:#8E8A99;max-width:280px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  margin-top:22px;padding-top:20px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8E8A99;
}
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:70;
  width:44px;height:44px;border-radius:13px;border:0;
  background:var(--brand);color:#fff;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s,background .18s var(--ease);
  box-shadow:var(--shadow-2);
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand-dark);}
.to-top:focus-visible{outline:3px solid var(--lime);outline-offset:2px;}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  :root{--sec-y:72px;}
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:block;}
  .v-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .page-head-row{flex-direction:column;align-items:flex-start;gap:22px;}
  .sort-box{width:100%;min-width:0;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px;}
}
@media (max-width:639px){
  :root{--sec-y:56px;--gutter:20px;}
  body{font-size:15.5px;}
  .header-inner{min-height:56px;gap:14px;}
  .brand-text{font-size:16px;}
  .page-head{padding:18px 0 26px;}
  .v-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
  .v-body{padding:12px 12px 14px;}
  .v-title{font-size:15px;}
  .v-play{opacity:1;width:42px;height:42px;font-size:13px;box-shadow:0 0 0 3px rgba(200,255,46,.85);}
  .rec-grid{grid-template-columns:1fr;}
  .review-card{flex:0 0 82%;}
  .btn{height:48px;}
  .btn-sm{height:34px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .cta-band{padding:26px 22px;}
  .head-stats{gap:20px;}
  .faq-q{font-size:15px;padding:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --brand:#5B21F0;
  --brand-dark:#4315C4;
  --brand-soft:#EDE7FF;
  --lime:#C8FF2E;
  --coral:#FF5A3C;
  --coral-dark:#E8412A;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --surface-2:#F1EEE8;
  --line:#E6E2DA;
  --ink:#16131C;
  --ink-2:#5B5766;
  --ink-3:#8E8A99;
  --ok:#2FA36B;
  --r-card:18px;
  --r-v:20px;
  --r-pill:999px;
  --r-btn:14px;
  --r-btn2:12px;
  --r-tag:8px;
  --sh1:0 2px 8px rgba(22,19,28,.06);
  --sh2:0 12px 28px -10px rgba(22,19,28,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:3px solid var(--lime);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh1);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;background:var(--brand);color:var(--lime);
  display:grid;place-items:center;font-size:13px;flex-shrink:0;
}
.logo-text{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:-.3px;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-links a{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15px;font-weight:600;color:var(--ink-2);
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--lime);border-radius:2px;transition:width .22s var(--ease);
}
.nav-links a:hover{color:var(--brand);}
.nav-links a:hover::after{width:100%;}
.nav-links a.is-active{color:var(--brand);}
.nav-links a.is-active::after{width:20px;height:3px;border-radius:3px;}
.header-actions{display:flex;align-items:center;gap:12px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;border:1.5px solid transparent;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease),transform .18s var(--ease);
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn-coral{background:var(--coral);color:#fff;}
.btn-coral:hover{background:var(--coral-dark);color:#fff;box-shadow:0 10px 22px -12px rgba(232,65,42,.9);}
.btn-brand{background:var(--brand);color:#fff;}
.btn-brand:hover{background:var(--brand-dark);color:#fff;box-shadow:0 10px 22px -12px rgba(67,21,196,.9);}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand-dark);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-light{background:#fff;color:var(--coral-dark);}
.btn-light:hover{background:#FFF3EF;color:var(--coral-dark);}
.btn-sm{height:40px;font-size:14px;padding:0 16px;border-radius:var(--r-btn2);}
.btn-xs{height:36px;font-size:13px;padding:0 15px;border-radius:10px;}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand);}
.text-link:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:4px;}

/* ---------- drawer ---------- */
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:#fff;padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;margin:3px auto;transition:.22s var(--ease);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}
.drawer-mask{position:fixed;inset:0;background:rgba(22,19,28,.45);opacity:0;visibility:hidden;transition:.24s var(--ease);z-index:80;}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:82vw;max-width:360px;background:#fff;z-index:90;
  transform:translateX(100%);transition:transform .28s var(--ease);
  padding:20px;overflow-y:auto;
}
.drawer.is-open{transform:none;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line);}
.drawer-title{font-size:15px;font-weight:800;color:var(--ink);}
.drawer-close{width:36px;height:36px;border:1px solid var(--line);border-radius:10px;background:#fff;display:grid;place-items:center;color:var(--ink-2);}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px;}
.drawer-nav a{padding:14px 2px;font-size:15px;font-weight:600;color:var(--ink-2);border-bottom:1px solid var(--line);}
.drawer-nav a.is-active{color:var(--brand);}
.drawer-nav a:hover{color:var(--brand);}
.drawer-title-sm{font-size:13px;font-weight:700;color:var(--ink-3);margin:22px 0 12px;}
.drawer-chips{display:flex;flex-wrap:wrap;gap:8px;}
.drawer-chips a{
  display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:600;
}
.drawer-chips a:hover{background:var(--brand);color:#fff;}
.drawer-cta{width:100%;margin-top:24px;}

/* ---------- breadcrumb ---------- */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);}
.breadcrumb a{color:rgba(255,255,255,.72);}
.breadcrumb a:hover{color:var(--lime);}
.breadcrumb .cur{color:#fff;font-weight:600;}

/* ---------- hero ---------- */
.cat-hero{position:relative;background:#16131C;overflow:hidden;display:flex;align-items:flex-end;min-height:420px;}
.cat-hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.cat-hero-veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(22,19,28,.30) 0%,rgba(22,19,28,.80) 100%);}
.cat-hero .container{position:relative;z-index:2;padding-top:96px;padding-bottom:48px;}
.cat-hero h1{
  color:#fff;font-size:clamp(30px,5.2vw,52px);font-weight:900;line-height:1.12;letter-spacing:-.5px;
  margin:18px 0 14px;max-width:900px;
}
.cat-hero-sub{color:rgba(255,255,255,.86);font-size:clamp(15px,2vw,18px);line-height:1.7;max-width:720px;}
.stat-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.stat-pill{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 18px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  color:rgba(255,255,255,.9);font-size:13px;font-weight:600;
  backdrop-filter:blur(4px);
}
.stat-pill strong{color:var(--lime);font-size:16px;font-weight:800;}

/* ---------- filter bar ---------- */
.filter-bar{background:#fff;border-bottom:1px solid var(--line);}
.filter-inner{display:flex;align-items:center;gap:10px;padding-top:16px;padding-bottom:16px;overflow-x:auto;scrollbar-width:none;}
.filter-inner::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;height:38px;padding:0 18px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  font-size:14px;font-weight:600;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.chip:hover{background:var(--brand-soft);color:var(--brand);border-color:#D9CCFF;}
.chip.is-active{background:var(--brand);color:#fff;border-color:var(--brand);}

/* ---------- section base ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--surface-2);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px;flex-wrap:wrap;}
.section-head h2{
  font-size:clamp(24px,3.2vw,34px);font-weight:800;line-height:1.2;letter-spacing:-.3px;
  display:flex;align-items:center;gap:12px;
}
.bar{display:inline-block;width:4px;height:26px;border-radius:4px;background:var(--lime);flex-shrink:0;}
.section-sub{color:var(--ink-2);font-size:15px;margin-top:10px;max-width:760px;}

/* ---------- topic rows ---------- */
.topic-list{display:flex;flex-direction:column;}
.topic-row{
  display:grid;grid-template-columns:280px 1fr;gap:26px;align-items:center;
  padding:24px 16px;border-bottom:1px solid var(--line);border-radius:14px;
  transition:background .2s var(--ease);
}
.topic-row:hover{background:#F7F4FF;}
.topic-thumb{aspect-ratio:4/3;border-radius:14px;overflow:hidden;box-shadow:var(--sh1);background:var(--brand-soft);}
.topic-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
.topic-row:hover .topic-thumb img{transform:scale(1.04);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:var(--r-tag);
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;
}
.tag-lime{background:rgba(200,255,46,.42);color:#3F5A00;}
.tag-plain{background:var(--surface-2);color:var(--ink-2);}
.topic-body h3{font-size:20px;font-weight:700;line-height:1.35;margin-bottom:8px;color:var(--ink);}
.topic-body p{font-size:15px;line-height:1.7;color:var(--ink-2);}
.topic-foot{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:16px;flex-wrap:wrap;}
.meta{font-size:13px;color:var(--ink-3);font-weight:600;}

/* ---------- steps ---------- */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.step-card{
  background:#fff;border-radius:var(--r-card);padding:24px 20px;box-shadow:var(--sh1);
  transition:box-shadow .2s var(--ease),transform .2s var(--ease);
}
.step-card:hover{box-shadow:var(--sh2);transform:translateY(-3px);}
.step-no{
  display:inline-grid;place-items:center;width:42px;height:42px;border-radius:12px;
  background:var(--lime);color:#16131C;font-weight:800;font-size:17px;
  font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.step-card h3{font-size:17px;font-weight:700;line-height:1.4;margin-bottom:8px;}
.step-card p{font-size:14px;line-height:1.7;color:var(--ink-2);}

/* ---------- scene grid ---------- */
.scene-card{
  background:#fff;border-radius:var(--r-card);padding:24px 22px;box-shadow:var(--sh1);
  height:100%;margin-bottom:24px;border-top:3px solid var(--brand-soft);
  transition:box-shadow .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.scene-card:hover{box-shadow:var(--sh2);transform:translateY(-3px);border-top-color:var(--lime);}
.scene-card i{color:var(--brand);font-size:18px;margin-bottom:12px;display:block;}
.scene-card h3{font-size:17px;font-weight:700;line-height:1.4;margin-bottom:8px;}
.scene-card p{font-size:14px;line-height:1.7;color:var(--ink-2);}

/* ---------- reviews ---------- */
.review-track{
  display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:10px;scrollbar-width:none;
}
.review-track::-webkit-scrollbar{display:none;}
.review-card{
  flex:0 0 300px;scroll-snap-align:start;background:#fff;border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh1);
  transition:box-shadow .2s var(--ease),transform .2s var(--ease);
}
.review-card:hover{box-shadow:var(--sh2);transform:translateY(-3px);}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.avatar{
  width:40px;height:40px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-weight:800;font-size:15px;flex-shrink:0;
}
.review-name{font-size:14px;font-weight:700;color:var(--ink);}
.review-badge{font-size:12px;color:var(--ink-3);font-weight:600;}
.review-card p{font-size:14px;line-height:1.7;color:var(--ink-2);}
.review-count{font-size:13px;color:var(--ink-3);font-weight:600;}

/* ---------- related cards ---------- */
.rec-card{
  background:#fff;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh1);
  height:100%;margin-bottom:24px;display:flex;flex-direction:column;
  transition:box-shadow .2s var(--ease),transform .2s var(--ease);
}
.rec-card:hover{box-shadow:var(--sh2);transform:translateY(-3px);}
.rec-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-soft);}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
.rec-card:hover .rec-thumb img{transform:scale(1.04);}
.rec-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1;}
.rec-body h3{
  font-size:17px;font-weight:700;line-height:1.4;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rec-body p{
  font-size:14px;line-height:1.6;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rec-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line);}

/* ---------- faq ---------- */
.faq-item{
  background:#fff;border-radius:var(--r-card);box-shadow:var(--sh1);
  margin-bottom:12px;overflow:hidden;border-left:3px solid transparent;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item.is-open{border-left-color:var(--lime);box-shadow:var(--sh2);}
.faq-q{
  width:100%;background:none;border:0;padding:20px 22px;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:700;color:var(--ink);line-height:1.5;
}
.faq-icon{
  width:26px;height:26px;border-radius:8px;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-size:12px;flex-shrink:0;transition:.22s var(--ease);
}
.faq-item.is-open .faq-icon{background:var(--brand);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-a-inner{padding:0 22px 20px;font-size:15px;line-height:1.75;color:var(--ink-2);}

/* ---------- CTA band ---------- */
.cta-wrap{padding:0 0 88px;}
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-v);background:var(--coral);color:#fff;
  padding:40px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(135deg,rgba(255,255,255,.07) 0 12px,rgba(255,255,255,0) 12px 24px);
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{font-size:clamp(22px,3vw,30px);font-weight:800;line-height:1.25;letter-spacing:-.3px;margin-bottom:10px;}
.cta-band p{font-size:15px;line-height:1.7;color:rgba(255,255,255,.92);max-width:620px;}
.trust-row{display:flex;flex-wrap:wrap;gap:18px;margin-top:18px;}
.trust-item{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:rgba(255,255,255,.95);}
.trust-item i{color:var(--lime);}

/* ---------- footer ---------- */
.site-footer{background:#16131C;color:#B9B4C4;padding:64px 0 24px;}
.f-col{margin-bottom:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;}
.footer-brand:hover{color:var(--lime);}
.footer-brand .logo-mark{background:var(--brand);color:var(--lime);}
.f-intro{font-size:14px;line-height:1.75;color:#B9B4C4;margin:14px 0 18px;}
.f-social{display:flex;gap:10px;}
.f-social a{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.08);color:#fff;}
.f-social a:hover{background:var(--lime);color:#16131C;}
.f-title{font-size:14px;font-weight:700;color:var(--lime);margin-bottom:16px;}
.f-links{display:flex;flex-direction:column;gap:10px;}
.f-links a{display:inline-block;width:fit-content;font-size:14px;color:#B9B4C4;transition:color .18s var(--ease),transform .18s var(--ease);}
.f-links a:hover{color:var(--lime);transform:translateX(3px);}
.qr-box{
  width:112px;height:112px;border-radius:14px;border:1px dashed rgba(255,255,255,.28);
  display:grid;place-items:center;text-align:center;padding:8px;
  font-size:13px;color:#8E8A99;margin-bottom:14px;
}
.f-note{font-size:13px;line-height:1.7;color:#8E8A99;}
.footer-bottom{
  margin-top:24px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8E8A99;
}
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:70;
  width:46px;height:46px;border-radius:14px;border:0;background:var(--brand);color:#fff;
  display:grid;place-items:center;box-shadow:var(--sh2);
  opacity:0;visibility:hidden;transition:.24s var(--ease);
}
.to-top.is-show{opacity:1;visibility:visible;}
.to-top:hover{background:var(--brand-dark);}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:grid;}
  .section{padding:72px 0;}
  .cat-hero{min-height:380px;}
  .cat-hero .container{padding-top:80px;padding-bottom:40px;}
  .topic-row{grid-template-columns:220px 1fr;gap:20px;}
  .step-grid{grid-template-columns:repeat(2,1fr);}
  .cta-wrap{padding-bottom:72px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .header-inner{height:56px;}
  .logo-text{font-size:16px;}
  .logo-mark{width:32px;height:32px;}
  .cat-hero{min-height:340px;}
  .cat-hero .container{padding-top:64px;padding-bottom:32px;}
  .cat-hero-sub{font-size:15px;}
  .stat-pill{height:36px;padding:0 14px;font-size:12px;}
  .topic-row{grid-template-columns:1fr;gap:16px;padding:20px 12px;}
  .topic-thumb{aspect-ratio:16/9;}
  .topic-body h3{font-size:18px;}
  .step-grid{grid-template-columns:1fr;gap:16px;}
  .review-card{flex:0 0 84%;}
  .cta-band{padding:28px 22px;flex-direction:column;align-items:flex-start;}
  .cta-band .btn{width:100%;}
  .cta-wrap{padding-bottom:56px;}
  .footer-bottom{flex-direction:column;}
  .to-top{right:16px;bottom:16px;width:48px;height:48px;}
  .btn{height:48px;}
  .btn-sm{height:44px;}
  .btn-xs{height:40px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category3 */
:root{
  --brand:#5B21F0;
  --brand-deep:#4315C4;
  --brand-soft:#EDE7FF;
  --brand-tint:#F7F4FF;
  --lime:#C8FF2E;
  --coral:#FF5A3C;
  --coral-deep:#E8412A;
  --bg:#F7F5F1;
  --card:#FFFFFF;
  --surface2:#F1EEE8;
  --line:#E6E2DA;
  --ink:#16131C;
  --ink2:#5B5766;
  --ink3:#8E8A99;
  --ok:#2FA36B;
  --warn:#D98A00;
  --r-card:18px;
  --r-pill:999px;
  --r-btn:14px;
  --r-btn-s:12px;
  --r-sm:8px;
  --shadow-1:0 2px 8px rgba(22,19,28,.06);
  --shadow-2:0 12px 28px -10px rgba(22,19,28,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--brand-deep);text-decoration:underline;text-underline-offset:3px}
a:focus-visible,button:focus-visible{outline:3px solid var(--lime);outline-offset:2px;border-radius:6px}
button{font-family:inherit;cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--tight{padding:56px 0}
.section--surface{background:var(--surface2)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.sec-head h2{
  position:relative;
  font-size:clamp(24px,3.2vw,34px);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.3px;
  padding-left:16px;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:1.05em;
  background:var(--lime);border-radius:4px;
}
.sec-sub{margin-top:10px;color:var(--ink2);font-size:15px;max-width:640px}
.sec-more{font-size:14px;font-weight:700;white-space:nowrap}
.sec-more i{font-size:12px;margin-left:6px;transition:transform .2s var(--ease)}
.sec-more:hover i{transform:translateX(4px)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;white-space:nowrap;
  transition:background .18s var(--ease),color .18s var(--ease),box-shadow .18s var(--ease),transform .12s var(--ease),border-color .18s var(--ease);
  text-decoration:none;
}
.btn:hover{text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn-convert{background:var(--coral);color:#fff;box-shadow:0 8px 18px -10px rgba(255,90,60,.85)}
.btn-convert:hover{background:var(--coral-deep);color:#fff;box-shadow:0 12px 22px -10px rgba(255,90,60,.9)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-deep);color:#fff}
.btn-outline{background:#fff;color:var(--brand);border:1.5px solid var(--brand)}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-deep);border-color:var(--brand-deep)}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:#fff}
.btn-sm{height:36px;padding:0 14px;font-size:13px;border-radius:var(--r-btn-s)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--ink);letter-spacing:-.2px}
.brand:hover{color:var(--ink);text-decoration:none}
.logo-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  background:var(--brand);color:var(--lime);
  display:inline-flex;align-items:center;justify-content:center;font-size:14px;
}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{
  position:relative;font-size:15px;font-weight:600;color:var(--ink2);padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--lime);
  transition:width .22s var(--ease);border-radius:2px;
}
.nav-links a:hover{color:var(--brand);text-decoration:none}
.nav-links a:hover::after{width:100%}
.nav-links a.is-active{color:var(--brand)}
.nav-links a.is-active::after{width:20px}
.nav-cta{margin-left:6px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);align-items:center;justify-content:center;font-size:18px;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(22,19,28,.45);opacity:0;visibility:hidden;
  transition:opacity .22s var(--ease),visibility .22s var(--ease);z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:82vw;max-width:340px;background:#fff;z-index:80;
  transform:translateX(102%);transition:transform .26s var(--ease);
  display:flex;flex-direction:column;padding:20px 20px 28px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--ink)}
.drawer-nav a{
  display:block;padding:15px 4px;font-size:16px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-nav a:hover{text-decoration:none;color:var(--brand)}
.drawer-nav a.is-active{color:var(--brand)}
.drawer-pills{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0 24px}
.drawer-pills a{
  display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:700;
}
.drawer-pills a:hover{text-decoration:none;background:var(--brand);color:#fff}
.drawer .btn{width:100%;height:48px}

/* ============ 面包屑 ============ */
.crumbs{padding:18px 0 0;font-size:13px;color:var(--ink3)}
.crumbs a{color:var(--ink2)}
.crumbs span.sep{margin:0 8px;color:var(--ink3)}
.crumbs .now{color:var(--ink3)}

/* ============ 榜单页头 ============ */
.rank-hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(900px 400px at 88% -10%,rgba(200,255,46,.30),transparent 62%),
    linear-gradient(140deg,#EDE7FF 0%,#F7F5F1 62%,#F1EEE8 100%);
  border-bottom:1px solid var(--line);
}
.rank-hero::after{
  content:"";position:absolute;right:-40px;top:-60px;width:340px;height:340px;border-radius:50%;
  background:repeating-linear-gradient(135deg,rgba(91,33,240,.06) 0 8px,transparent 8px 20px);
  pointer-events:none;
}
.rank-hero-inner{position:relative;z-index:1;padding:64px 0 52px;max-width:820px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);color:var(--brand);font-size:13px;font-weight:700;
  box-shadow:var(--shadow-1);margin-bottom:18px;
}
.eyebrow i{color:var(--coral)}
.rank-hero h1{
  font-size:clamp(30px,5.2vw,52px);font-weight:900;line-height:1.12;letter-spacing:-.5px;
  margin-bottom:18px;
}
.rank-hero h1 em{font-style:normal;color:var(--brand)}
.rank-hero p.lead{font-size:clamp(15px,1.6vw,17px);color:var(--ink2);max-width:660px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.meta-chip{
  display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--ink2);
  box-shadow:var(--shadow-1);
}
.meta-chip b{color:var(--ink);font-weight:800}
.meta-chip i{color:var(--brand)}
.meta-chip .dot-live{width:8px;height:8px;border-radius:50%;background:var(--ok)}

/* ============ 榜单列表 ============ */
.rank-panel{
  background:var(--card);border-radius:22px;box-shadow:var(--shadow-1);
  border:1px solid var(--line);overflow:hidden;
}
.rank-panel-head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 24px;border-bottom:1px solid var(--line);background:var(--brand-tint);
}
.rank-panel-head h2{font-size:18px;font-weight:800;display:flex;align-items:center;gap:10px}
.rank-panel-head h2 i{color:var(--coral)}
.rank-legend{display:flex;align-items:center;gap:16px;font-size:13px;color:var(--ink2);flex-wrap:wrap}
.rank-legend span{display:inline-flex;align-items:center;gap:6px}
.legend-swatch{width:14px;height:14px;border-radius:5px}
.sw-lime{background:var(--lime)}
.sw-grey{background:var(--surface2);border:1px solid var(--line)}
.sw-up{color:var(--ok)}
.sw-down{color:var(--coral)}

.rank-list{padding:8px 0}
.rank-row{
  display:grid;
  grid-template-columns:64px 84px minmax(0,1fr) 190px;
  align-items:center;gap:18px;
  padding:16px 24px;border-bottom:1px solid var(--line);
  transition:background .18s var(--ease);
}
.rank-row:last-child{border-bottom:0}
.rank-row:hover{background:var(--brand-tint)}

.rank-badge{
  width:40px;height:40px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  font-weight:800;font-size:15px;font-variant-numeric:tabular-nums;
  background:var(--surface2);color:var(--ink2);border:1px solid var(--line);
}
.rank-badge.top{background:var(--lime);color:#16131C;border-color:transparent;box-shadow:0 6px 14px -8px rgba(200,255,46,.9)}
.rank-badge.top-1{font-size:17px}

.rank-thumb{
  position:relative;display:block;width:84px;aspect-ratio:1/1;border-radius:14px;overflow:hidden;
  background:var(--brand-soft);
}
.rank-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease)}
.rank-row:hover .rank-thumb img{transform:scale(1.05)}

.rank-main{min-width:0}
.rank-title{
  display:block;font-size:17px;font-weight:700;line-height:1.4;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rank-title:hover{color:var(--brand);text-decoration:none}
.rank-desc{
  margin-top:6px;font-size:14px;line-height:1.6;color:var(--ink2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rank-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-sm);
  background:var(--surface2);color:var(--ink2);font-size:12px;font-weight:600;
}
.tag-brand{background:var(--brand-soft);color:var(--brand-deep)}

.rank-side{display:flex;flex-direction:column;align-items:flex-end;gap:10px}
.rank-score{display:flex;align-items:baseline;gap:6px;font-variant-numeric:tabular-nums}
.rank-score b{font-size:22px;font-weight:900;color:var(--brand);letter-spacing:-.5px}
.rank-score span{font-size:12px;color:var(--ink3);font-weight:600}
.trend{font-size:12px;font-weight:700;display:inline-flex;align-items:center;gap:4px}
.trend.up{color:var(--ok)}
.trend.down{color:var(--coral)}
.trend.flat{color:var(--ink3)}

/* ============ 延伸阅读 ============ */
.rec-grid a.rec-card{
  display:block;background:var(--card);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-1);border:1px solid var(--line);color:inherit;
  transition:box-shadow .2s var(--ease),transform .2s var(--ease);
}
.rec-grid a.rec-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);text-decoration:none}
.rec-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--brand-soft)}
.rec-cover img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease)}
.rec-card:hover .rec-cover img{transform:scale(1.04)}
.rec-cover .tag{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.92);color:var(--brand-deep)}
.rec-body{padding:16px 18px 18px}
.rec-body h3{
  font-size:17px;font-weight:700;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;
  -webkit-box-orient:vertical;overflow:hidden;
}
.rec-body p{margin-top:8px;font-size:14px;line-height:1.6;color:var(--ink2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rec-foot{margin-top:14px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink3)}
.rec-foot .go{color:var(--brand);font-weight:700}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);overflow:hidden;transition:box-shadow .2s var(--ease);
}
.faq-item:hover{box-shadow:var(--shadow-2)}
.faq-item[open]{border-left:3px solid var(--lime)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 20px;display:flex;align-items:center;gap:14px;
  font-size:16px;font-weight:700;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .q-mark{
  margin-left:auto;flex:0 0 26px;width:26px;height:26px;border-radius:9px;
  background:var(--brand-soft);color:var(--brand);display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;transition:background .2s var(--ease),color .2s var(--ease);
}
.faq-item[open] summary .q-mark{background:var(--brand);color:#fff}
.faq-body{padding:0 20px 20px;font-size:15px;line-height:1.75;color:var(--ink2);border-top:1px solid var(--line);padding-top:16px}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;background:var(--coral);color:#fff;
  padding:40px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(135deg,rgba(255,255,255,.07) 0 10px,transparent 10px 24px);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:1;max-width:640px}
.cta-copy h2{font-size:clamp(22px,3vw,30px);font-weight:900;line-height:1.22;letter-spacing:-.3px}
.cta-copy p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.92)}
.cta-points{display:flex;flex-wrap:wrap;gap:18px;margin-top:18px}
.cta-points span{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600}
.cta-points i{color:var(--lime)}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap}
.cta-band .btn-primary{background:#16131C}
.cta-band .btn-primary:hover{background:#000}
.cta-band .btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.75)}
.cta-band .btn-outline:hover{background:#fff;color:var(--coral-deep);border-color:#fff}

/* ============ 页脚 ============ */
.site-footer{background:#16131C;color:#B9B4C4;padding:64px 0 0;margin-top:0}
.site-footer .f-col{padding-bottom:28px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:800}
.footer-brand:hover{color:#fff;text-decoration:none}
.footer-brand .logo-mark{background:var(--brand);color:var(--lime)}
.f-intro{margin-top:14px;font-size:14px;line-height:1.75;color:#B9B4C4;max-width:300px}
.f-social{display:flex;gap:10px;margin-top:18px}
.f-social a{
  width:38px;height:38px;border-radius:11px;background:rgba(255,255,255,.07);color:#B9B4C4;
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.f-social a:hover{background:var(--lime);color:#16131C;text-decoration:none}
.f-title{font-size:14px;font-weight:700;color:var(--lime);margin-bottom:16px}
.f-links{display:flex;flex-direction:column;gap:11px}
.f-links a{font-size:14px;color:#B9B4C4;transition:color .18s var(--ease),transform .18s var(--ease);display:inline-block}
.f-links a:hover{color:var(--lime);transform:translateX(3px);text-decoration:none}
.qr-box{
  width:120px;height:120px;border-radius:16px;background:rgba(255,255,255,.06);
  border:1px dashed rgba(200,255,46,.5);color:var(--lime);font-size:13px;font-weight:600;
  display:flex;align-items:center;justify-content:center;text-align:center;padding:12px;
}
.f-note{margin-top:16px;font-size:13px;line-height:1.7;color:#8E8A99;max-width:280px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);margin-top:16px;padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8E8A99;
}
.to-top{
  position:fixed;right:20px;bottom:24px;width:44px;height:44px;border-radius:14px;
  background:var(--brand);color:#fff;display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-2);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s var(--ease),background .2s var(--ease);
  z-index:50;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--brand-deep)}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .nav-inner{height:56px}
  .section{padding:72px 0}
  .rank-row{grid-template-columns:56px 76px minmax(0,1fr) 160px;gap:14px;padding:15px 20px}
  .rank-thumb{width:76px}
}
@media screen and (max-width:767px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .rank-hero-inner{padding:44px 0 38px}
  .rank-row{
    grid-template-columns:46px 68px minmax(0,1fr);
    grid-template-areas:
      "badge thumb main"
      "side side side";
    row-gap:12px;padding:16px 18px;
  }
  .rank-badge{grid-area:badge;width:34px;height:34px;border-radius:10px;font-size:13px}
  .rank-thumb{grid-area:thumb;width:68px;border-radius:12px}
  .rank-main{grid-area:main}
  .rank-side{
    grid-area:side;flex-direction:row;align-items:center;justify-content:space-between;
    padding-top:12px;border-top:1px dashed var(--line);
  }
  .rank-title{font-size:16px}
  .rank-desc{font-size:13.5px}
  .cta-band{padding:28px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .rank-panel-head{padding:16px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media screen and (max-width:519px){
  .rank-row{
    grid-template-columns:1fr;
    grid-template-areas:
      "thumb"
      "main"
      "side";
  }
  .rank-badge{position:absolute;margin-left:0}
  .rank-thumb{width:100%;aspect-ratio:16/9;border-radius:14px}
  .rank-badge{display:none}
  .rank-side{width:100%}
  .rank-score b{font-size:20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
}