/* roulang page: index */
:root{
  --brand:#F4511E;
  --brand-dark:#C93B0C;
  --brand-soft:#FFF1EA;
  --accent:#12C8A0;
  --accent-deep:#0FA987;
  --gold:#FFC53D;
  --night:#101520;
  --night-2:#1A2130;
  --night-text:#EDF0F4;
  --night-muted:#A8B0BE;
  --paper:#F7F8FA;
  --card:#FFFFFF;
  --line:#E6E8EC;
  --ink:#14181F;
  --muted:#6B7280;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-btn:10px;
  --shadow-sm:0 2px 8px rgba(16,21,32,.06);
  --shadow-card:0 10px 28px -14px rgba(16,21,32,.18);
  --shadow-hover:0 18px 40px -18px rgba(244,81,30,.30);
  --container:1200px;
  --section-y:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",ui-sans-serif,system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,figure,ul,ol,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--brand-dark);text-decoration:none;transition:color .16s ease}
a:hover{color:var(--brand)}
img{display:block;max-width:100%;height:auto}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.tabular{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;height:68px;z-index:80;
  display:flex;align-items:center;
  color:var(--nav-fg,#EDF0F4);
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{
  background:#fff;color:var(--ink);
  border-bottom-color:var(--line);
  box-shadow:0 2px 8px rgba(16,21,32,.06);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%}
.brand{display:flex;align-items:center;gap:10px;color:inherit;flex:none}
.brand:hover{color:inherit}
.brand-mark{width:30px;height:30px;flex:none;color:var(--brand)}
.brand-text{font-size:18px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;line-height:1.2}
.brand-text .brand-thin{font-weight:400;color:var(--brand)}
.main-nav{display:flex;align-items:center;gap:28px}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:inherit;padding:6px 0;opacity:.92;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.main-nav a:hover{color:var(--brand);opacity:1}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1)}
.main-nav a.active{opacity:1}
.header-actions{display:flex;align-items:center;gap:12px;flex:none}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:background .14s ease,color .14s ease,border-color .14s ease,transform .14s ease,box-shadow .14s ease;
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px -15px rgba(244,81,30,.95)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 18px 40px -18px rgba(244,81,30,.6)}
.btn-ghost{border:1px solid rgba(255,255,255,.34);color:#fff;background:rgba(255,255,255,.06)}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-dark)}
.btn-ghost.on-light{border-color:var(--line);color:var(--ink);background:#fff}
.btn-ghost.on-light:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-dark)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  background:var(--night);color:var(--night-text);
  padding-top:calc(68px + 64px);padding-bottom:8px;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(900px 420px at 80% 4%, rgba(244,81,30,.20), transparent 68%),
    radial-gradient(620px 320px at 4% 92%, rgba(18,200,160,.14), transparent 70%);
}
.hero .container{position:relative}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;
  color:var(--gold);
}
.kicker::before{content:"";width:18px;height:2px;background:var(--gold);border-radius:2px}
.hero h1{
  margin-top:16px;
  font-size:clamp(28px,4vw,50px);font-weight:700;line-height:1.22;letter-spacing:-.01em;color:#fff;
}
.hero-sub{margin-top:18px;max-width:33em;font-size:17px;line-height:1.85;color:var(--night-muted)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-media{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  aspect-ratio:16/11;background:var(--night-2);
  border:1px solid rgba(255,255,255,.08);box-shadow:0 30px 70px -40px rgba(0,0,0,.9);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(16,21,32,.86),rgba(16,21,32,.06) 62%);
}
.hero-media-note{
  position:absolute;left:18px;right:18px;top:16px;z-index:2;
  display:flex;align-items:center;gap:8px;font-size:13px;color:#EDF0F4;
}
.dot{width:8px;height:8px;border-radius:999px;background:var(--accent);flex:none}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  margin-top:52px;padding:26px 0 30px;border-top:1px solid rgba(255,255,255,.08);
}
.stat{display:flex;flex-direction:column;gap:4px}
.stat strong{font-size:30px;font-weight:700;line-height:1.1;color:#fff;letter-spacing:-.01em}
.stat span{font-size:13px;color:var(--night-muted)}

/* ============ 板块通用 ============ */
.section{padding:var(--section-y) 0}
.section[id]{scroll-margin-top:88px}
.section--paper{background:var(--paper)}
.section--white{background:#fff}
.section--night{background:var(--night);color:var(--night-text)}
.section-head{max-width:720px;margin-bottom:44px}
.section-kicker{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;
  color:var(--brand);text-transform:uppercase;
}
.section-head h2{
  margin-top:10px;font-size:clamp(24px,2.6vw,32px);font-weight:600;line-height:1.3;letter-spacing:-.01em;
}
.section-head p{margin-top:12px;font-size:15.5px;line-height:1.85;color:var(--muted)}
.section--night .section-head p{color:var(--night-muted)}
.section--night .section-head h2{color:#fff}
.section--night .section-kicker{color:var(--gold)}
.section-head--row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:28px;max-width:none;
}

/* ============ 玩法介绍 ============ */
.play-list{display:flex;flex-direction:column}
.play-item{
  display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;
  padding:36px 0;border-top:1px solid var(--line);
}
.play-item:first-child{border-top:0;padding-top:0}
.play-item:nth-child(even) .play-media{order:-1}
.play-media{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  aspect-ratio:16/10;background:var(--brand-soft);border:1px solid var(--line);
}
.play-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.play-item:hover .play-media img{transform:scale(1.03)}
.play-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  background:var(--brand-soft);color:var(--brand-dark);
  font-size:15px;font-weight:700;letter-spacing:.06em;font-variant-numeric:tabular-nums;
}
.play-item h3{margin-top:16px;font-size:22px;font-weight:600;line-height:1.4}
.play-item p{margin-top:10px;font-size:15.5px;line-height:1.85;color:var(--muted)}
.text-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:18px;
  font-size:14.5px;font-weight:600;color:var(--brand-dark);
  border-bottom:1px solid transparent;transition:gap .16s ease,color .16s ease,border-color .16s ease;
}
.text-link:hover{gap:10px;color:var(--brand);border-bottom-color:var(--brand)}

/* ============ 奖励预览 ============ */
.prize-main{
  display:grid;grid-template-columns:.88fr 1.12fr;
  background:var(--night-2);border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius-lg);overflow:hidden;margin-bottom:24px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.prize-main:hover{border-color:rgba(255,197,61,.35);box-shadow:0 26px 60px -40px rgba(0,0,0,.95)}
.prize-main-media{position:relative;min-height:260px;background:#232B3C}
.prize-main-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.prize-main-body{padding:34px 36px}
.tier-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  border:1px solid var(--gold);color:var(--gold);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.tier-badge.solid{background:rgba(255,197,61,.12)}
.prize-main-body h3{margin-top:16px;font-size:26px;font-weight:600;line-height:1.35;color:#fff}
.prize-main-body p{margin-top:12px;font-size:15.5px;line-height:1.85;color:var(--night-muted);max-width:38em}
.prize-main-body .hero-actions{margin-top:24px}
.prize-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.prize-card{
  display:flex;flex-direction:column;
  background:var(--night-2);border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius-card);padding:26px 24px;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.prize-card:hover{transform:translateY(-2px);border-color:rgba(255,197,61,.42);box-shadow:0 22px 48px -30px rgba(0,0,0,.9)}
.prize-card h4{margin-top:14px;font-size:19px;font-weight:600;color:#fff}
.prize-card p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--night-muted);flex:1}
.prize-card .btn{margin-top:20px}
.prize-meta{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--night-muted)}

/* ============ 任务进度 ============ */
.task-panel{
  display:grid;grid-template-columns:1.55fr .45fr;gap:44px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:38px;box-shadow:var(--shadow-card);
}
.progress-wrap{position:relative;margin-top:22px}
.progress-track{height:8px;border-radius:999px;background:var(--night);overflow:hidden}
.progress-fill{
  height:100%;width:25%;border-radius:999px;
  background:linear-gradient(90deg,var(--accent),var(--accent-deep));
  transition:width .6s ease-out;
}
.tick{
  position:absolute;top:50%;width:12px;height:12px;border-radius:999px;
  transform:translate(-50%,-50%);
  background:#fff;border:2px solid #CBD2DC;
}
.tick.on{background:var(--accent);border-color:var(--accent)}
.progress-marks{display:flex;justify-content:space-between;margin-top:12px;font-size:12.5px;color:var(--muted)}
.progress-marks b{color:var(--ink);font-weight:600;font-variant-numeric:tabular-nums}
.task-list{margin-top:28px;display:grid;gap:12px}
.task-item{
  display:flex;align-items:flex-start;gap:12px;
  padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:var(--paper);
  transition:border-color .16s ease,background .16s ease;
}
.task-item:hover{border-color:#F7CDBC;background:#fff}
.task-check{
  appearance:none;-webkit-appearance:none;
  width:20px;height:20px;flex:none;margin:3px 0 0;
  border:1.5px solid #C7CCD6;border-radius:6px;background:#fff;position:relative;cursor:pointer;
  transition:background .16s ease,border-color .16s ease;
}
.task-check:checked{background:var(--accent);border-color:var(--accent)}
.task-check:checked::after{
  content:"";position:absolute;left:6px;top:2px;width:5px;height:10px;
  border:2px solid #fff;border-top:0;border-left:0;transform:rotate(45deg);
}
.task-item label{font-size:14.5px;line-height:1.7;cursor:pointer}
.task-item label small{display:block;font-size:12.5px;color:var(--muted)}
.task-side{
  display:flex;flex-direction:column;justify-content:center;gap:14px;
  border-left:1px solid var(--line);padding-left:36px;
}
.task-side .count{font-size:15px;font-weight:600;font-variant-numeric:tabular-nums}
.task-side p{font-size:13.5px;color:var(--muted);line-height:1.8}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:28px;align-items:start}
.lead-card{
  display:flex;flex-direction:column;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.lead-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#F8D5C7;color:inherit}
.lead-card-media{position:relative;aspect-ratio:16/9;background:var(--brand-soft);overflow:hidden}
.lead-card-media img{width:100%;height:100%;object-fit:cover}
.lead-card-body{padding:26px}
.meta-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);
  font-size:12px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
}
.meta{font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.lead-card h3{margin-top:12px;font-size:22px;font-weight:600;line-height:1.45}
.lead-card p{margin-top:10px;font-size:15px;line-height:1.85;color:var(--muted)}
.lead-card .text-link{margin-top:14px}
.news-list{display:flex;flex-direction:column;gap:14px}
.list-card{
  display:flex;align-items:flex-start;gap:14px;
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.list-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#F8D5C7;color:inherit}
.list-thumb{
  width:44px;height:44px;flex:none;border-radius:10px;background:var(--brand-soft);
  display:flex;align-items:center;justify-content:center;color:var(--brand-dark);
}
.list-card-body{flex:1;min-width:0}
.list-card h4{margin-top:8px;font-size:16px;font-weight:600;line-height:1.5}
.list-card p{margin-top:6px;font-size:13.5px;line-height:1.75;color:var(--muted)}
.arrow{color:var(--brand);font-size:16px;line-height:1;margin-top:14px;transition:transform .16s ease}
.list-card:hover .arrow{transform:translateX(3px)}
.t2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:56px 24px;text-align:center;
  background:#fff;border:1px dashed var(--line);border-radius:var(--radius-lg);
}
.empty-state svg{width:40px;height:40px;color:#C7CCD6}
.empty-state p{font-size:15px;color:var(--muted)}

/* ============ 项目覆盖 ============ */
.cover-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.cover-card{
  background:var(--night-2);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-card);
  padding:22px;transition:transform .2s ease,border-color .2s ease;
}
.cover-card:hover{transform:translateY(-2px);border-color:rgba(18,200,160,.4)}
.cover-card .ico{
  width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.06);color:var(--accent);
}
.cover-card h4{margin-top:14px;font-size:17px;font-weight:600;color:#fff}
.cover-card p{margin-top:6px;font-size:13.5px;line-height:1.8;color:var(--night-muted)}
.rhythm{margin-top:32px;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.rhythm-item{display:flex;gap:12px;align-items:flex-start}
.rhythm-item .n{
  font-size:13px;font-weight:700;color:var(--gold);font-variant-numeric:tabular-nums;
  padding-top:2px;
}
.rhythm-item h5{font-size:15px;font-weight:600;color:#fff}
.rhythm-item p{font-size:13.5px;color:var(--night-muted);line-height:1.75}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px 24px;align-items:start}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease}
.faq-item:hover{border-color:#F8D5C7}
.faq-item.open{border-color:#F3BBA5;box-shadow:var(--shadow-sm)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;
  padding:18px 20px;text-align:left;font-size:15.5px;font-weight:600;line-height:1.6;color:var(--ink);
  transition:color .16s ease;
}
.faq-q:hover{color:var(--brand-dark)}
.faq-icon{width:16px;height:16px;flex:none;color:var(--brand);transition:transform .2s ease}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease}
.faq-item.open .faq-a{max-height:340px}
.faq-a p{padding:0 20px 20px;font-size:14.5px;line-height:1.85;color:var(--muted)}

/* ============ CTA ============ */
.cta-band{background:var(--paper);padding:0 0 var(--section-y)}
.cta-card{
  position:relative;overflow:hidden;
  background:var(--night);color:var(--night-text);
  border-radius:24px;padding:56px;
  display:grid;grid-template-columns:1.18fr .82fr;gap:40px;align-items:center;
}
.cta-card::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(700px 320px at 88% 20%, rgba(244,81,30,.28), transparent 70%);
}
.cta-copy{position:relative;z-index:2}
.cta-copy h2{font-size:clamp(24px,2.8vw,34px);font-weight:600;line-height:1.32;color:#fff;letter-spacing:-.01em}
.cta-copy p{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--night-muted);max-width:34em}
.cta-copy .btn{margin-top:26px}
.cta-figure{position:relative;z-index:1;border-radius:18px;overflow:hidden;aspect-ratio:16/10;opacity:.55}
.cta-figure img{width:100%;height:100%;object-fit:cover}

/* ============ 页脚 ============ */
.site-footer{background:var(--night);color:var(--night-muted);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.footer-col p{font-size:14px;line-height:1.85;color:var(--night-muted)}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;letter-spacing:.02em}
.footer-col a{display:block;font-size:14px;color:var(--night-muted);padding:5px 0;transition:color .16s ease,transform .16s ease}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-contact li{font-size:14px;line-height:1.9;color:var(--night-muted)}
.footer-contact b{color:#fff;font-weight:600;margin-right:6px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0;display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#8B93A1;
}

/* ============ 移动底部 Tab ============ */
.mobile-tab{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;
  background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -6px 20px -16px rgba(16,21,32,.5);
}
.mobile-tab ul{display:flex;height:60px}
.mobile-tab li{flex:1;min-width:0}
.mobile-tab a{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  height:60px;font-size:11px;color:var(--muted);transition:color .16s ease;
}
.mobile-tab a:hover,.mobile-tab a.active{color:var(--brand)}
.mobile-tab a.active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:24px;height:2px;border-radius:2px;background:var(--brand);
}
.mobile-tab svg{width:22px;height:22px}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .container{padding:0 28px}
}
@media (max-width:1024px){
  :root{--section-y:72px}
  .main-nav{display:none}
  .mobile-tab{display:block}
  body{padding-bottom:76px}
  .hero{padding-top:calc(68px + 48px)}
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .hero-stats{margin-top:40px}
  .task-panel{grid-template-columns:1fr;padding:28px}
  .task-side{border-left:0;border-top:1px solid var(--line);padding-left:0;padding-top:24px}
  .news-grid{grid-template-columns:1fr}
  .prize-main{grid-template-columns:1fr}
  .prize-main-media{min-height:220px;aspect-ratio:16/9}
  .cover-grid{grid-template-columns:repeat(2,1fr)}
  .rhythm{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-card{padding:40px;grid-template-columns:1fr}
}
@media (max-width:768px){
  :root{--section-y:56px}
  .container{padding:0 20px}
  .hero h1{font-size:clamp(26px,7vw,34px)}
  .hero-sub{font-size:15.5px}
  .hero-stats{grid-template-columns:1fr;gap:16px;padding:22px 0}
  .stat{flex-direction:row;align-items:baseline;gap:10px}
  .stat strong{font-size:24px}
  .play-item{grid-template-columns:1fr;gap:22px;padding:28px 0}
  .play-item:nth-child(even) .play-media{order:0}
  .prize-row{
    display:flex;overflow-x:auto;scroll-snap-type:x mandatory;
    gap:16px;padding:0 16px 12px;margin:0 -20px;
    -webkit-overflow-scrolling:touch;
  }
  .prize-row::-webkit-scrollbar{height:4px}
  .prize-row::-webkit-scrollbar-thumb{background:#333D50;border-radius:999px}
  .prize-card{min-width:78%;scroll-snap-align:start}
  .faq-grid{grid-template-columns:1fr}
  .section-head--row{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-card{padding:30px 24px}
  .cta-figure{display:none}
  .cover-grid{grid-template-columns:1fr}
  .header-actions .btn{height:38px;padding:0 14px;font-size:13px}
  .brand-text{font-size:16px}
}
@media (max-width:520px){
  .section-head p{font-size:14.5px}
  .prize-card{min-width:86%}
  .lead-card h3{font-size:19px}
  .task-panel{padding:20px}
}

/* roulang page: article */
:root{
  --brand:#F4511E;
  --brand-dark:#C93B0C;
  --brand-soft:#FFF1EA;
  --accent:#12C8A0;
  --accent-dark:#0FA987;
  --gold:#FFC53D;
  --night:#101520;
  --night-2:#1A2130;
  --night-text:#EDF0F4;
  --night-muted:#A8B0BE;
  --paper:#F7F8FA;
  --card:#FFFFFF;
  --line:#E6E8EC;
  --ink:#14181F;
  --muted:#6B7280;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-btn:10px;
  --shadow-1:0 2px 8px rgba(16,21,32,.06);
  --shadow-2:0 10px 28px -14px rgba(16,21,32,.18);
  --shadow-3:0 18px 40px -18px rgba(244,81,30,.30);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body.page-body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-dark);text-decoration:none}
button{font-family:inherit}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:1024px){.container{padding-left:32px;padding-right:32px}}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#ffffff;
  border-bottom:1px solid transparent;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow-1)}
.header-inner{display:flex;align-items:center;height:68px;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.brand-mark{width:26px;height:26px;color:var(--brand);flex:0 0 auto}
.brand-text{font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
.brand-thin{font-weight:400;color:#4b5563}
.main-nav{display:flex;align-items:center;gap:28px;margin:0 auto}
.main-nav a{position:relative;font-size:15px;font-weight:500;color:var(--ink);padding:8px 0;transition:color .16s ease}
.main-nav a:hover{color:var(--brand-dark)}
.main-nav a.is-active{color:var(--brand-dark)}
.main-nav a.is-active::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;border-radius:2px;background:var(--brand)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--radius-btn);border:1px solid transparent;font-size:15px;font-weight:600;line-height:1;cursor:pointer;transition:background .14s ease,color .14s ease,border-color .14s ease,transform .14s ease,box-shadow .14s ease;text-decoration:none}
.btn:active{transform:scale(.98)}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px -12px rgba(244,81,30,.75)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-3)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-dark)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-block{width:100%}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;
  padding:36px 0 60px;
  color:var(--night-text);
  background-color:var(--night);
  background-image:
    linear-gradient(112deg,rgba(16,21,32,.97) 0%,rgba(16,21,32,.90) 46%,rgba(16,21,32,.62) 100%),
    url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center right;
  overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;right:-60px;top:-80px;width:340px;height:340px;
  background:repeating-linear-gradient(135deg,rgba(244,81,30,.16) 0 10px,transparent 10px 26px);
  transform:skewX(-12deg);pointer-events:none;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--night-muted);position:relative;z-index:1}
.crumb a{color:var(--night-muted);transition:color .16s ease}
.crumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.crumb-sep{opacity:.5}
.crumb-current{color:#fff;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 16px;position:relative;z-index:1}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.04em;line-height:1}
.badge-brand{background:var(--brand-soft);color:var(--brand-dark)}
.badge-ghost{background:rgba(255,255,255,.10);color:#fff;border:1px solid rgba(255,255,255,.16)}
.badge-gold{background:transparent;border:1px solid var(--gold);color:#FFE0A3}
.article-title{position:relative;z-index:1;margin:0;max-width:900px;font-size:clamp(26px,3.6vw,44px);font-weight:700;line-height:1.26;letter-spacing:-.01em;color:#fff}
.article-meta{position:relative;z-index:1;display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px;font-size:13px;color:var(--night-muted)}
.article-meta .dot{width:4px;height:4px;border-radius:999px;background:rgba(255,255,255,.35)}

/* ============ 主体布局 ============ */
.article-main{padding:48px 0 72px;background:var(--paper)}
@media (min-width:1024px){.article-main{padding:64px 0 88px}}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:32px;align-items:start}
@media (min-width:1024px){.article-layout{grid-template-columns:minmax(0,760px) minmax(280px,1fr);gap:48px}}

.article-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px 20px;box-shadow:var(--shadow-2)}
@media (min-width:768px){.article-card{padding:36px 40px 40px}}

.article-body{font-size:17px;line-height:1.9;color:#242b35;word-break:break-word}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{font-size:27px;font-weight:600;line-height:1.38;color:var(--ink);margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--brand);border-radius:2px}
.article-body h3{font-size:21px;font-weight:600;line-height:1.45;color:var(--ink);margin:28px 0 12px}
.article-body h4{font-size:18px;font-weight:600;margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.5em}
.article-body li{line-height:1.8;margin-bottom:.4em}
.article-body li::marker{color:var(--brand)}
.article-body blockquote{margin:24px 0;padding:14px 20px;border-left:4px solid var(--brand);background:var(--paper);border-radius:0 12px 12px 0;color:#3b434f}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:24px auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;line-height:1.6}
.article-body a{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px;transition:color .16s ease}
.article-body a:hover{color:var(--brand);text-decoration-thickness:2px}
.article-body strong{font-weight:700;color:var(--ink)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:20px 0}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article-body th{background:var(--paper);font-weight:600}
.article-body code{background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:1px 6px;font-size:14px}

.empty-state{padding:56px 16px;text-align:center}
.empty-icon{width:64px;height:64px;margin:0 auto 18px;color:var(--brand);opacity:.85}
.empty-state h2{margin:0 0 10px;font-size:22px;font-weight:600;color:var(--ink)}
.empty-state p{margin:0 0 22px;color:var(--muted);font-size:15px}

.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.tag-label{font-size:13px;color:var(--muted);margin-right:2px}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;background:var(--brand-soft);color:var(--brand-dark);font-size:13px;font-weight:500;transition:background .16s ease,color .16s ease,transform .16s ease}
.tag:hover{background:var(--brand);color:#fff;transform:translateY(-1px)}
.article-return{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

/* ============ 侧栏 ============ */
.article-aside{display:flex;flex-direction:column;gap:20px}
@media (min-width:1024px){.article-aside{position:sticky;top:88px}}
.aside-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:20px;box-shadow:var(--shadow-1)}
.aside-title{display:flex;align-items:center;gap:8px;margin:0 0 14px;font-size:14px;font-weight:600;letter-spacing:.04em;color:var(--muted)}
.aside-title::before{content:"";width:14px;height:2px;border-radius:2px;background:var(--brand)}
.toc-list{display:flex;flex-direction:column;max-height:340px;overflow:auto}
.toc-list a{display:block;font-size:14px;line-height:1.6;color:#4b5563;padding:7px 0 7px 12px;border-left:2px solid var(--line);transition:color .16s ease,border-color .16s ease,background .16s ease}
.toc-list a:hover{color:var(--brand-dark);border-left-color:var(--brand);background:var(--brand-soft)}
.toc-list a.is-current{color:var(--brand-dark);font-weight:600;border-left-color:var(--brand)}
.toc-empty{font-size:13px;color:var(--muted);line-height:1.7}

.rel-mini{display:flex;flex-direction:column;gap:14px}
.rel-mini-item{display:flex;gap:12px;align-items:flex-start}
.rel-mini-thumb{width:72px;height:54px;flex:0 0 auto;border-radius:10px;overflow:hidden;background:var(--brand-soft)}
.rel-mini-thumb img{width:100%;height:100%;object-fit:cover}
.rel-mini-body{min-width:0}
.rel-mini-body time{display:block;font-size:12px;color:var(--muted);margin-bottom:2px;font-variant-numeric:tabular-nums}
.rel-mini-body a{display:block;font-size:14px;font-weight:500;line-height:1.5;color:var(--ink);transition:color .16s ease}
.rel-mini-item:hover .rel-mini-body a{color:var(--brand-dark)}
.rel-mini-body a:hover{text-decoration:underline;text-underline-offset:3px}

.aside-cta{background:var(--night);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-card);padding:22px;color:var(--night-text)}
.aside-cta h3{margin:0 0 8px;font-size:16px;font-weight:600;color:#fff}
.aside-cta p{margin:0 0 16px;font-size:13px;line-height:1.7;color:var(--night-muted)}

/* ============ 推荐板块 ============ */
.section{padding:64px 0}
@media (min-width:1024px){.section{padding:88px 0}}
.section-paper{background:var(--paper)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-head h2{margin:0;font-size:clamp(24px,2.6vw,32px);font-weight:600;line-height:1.3;letter-spacing:-.01em;color:var(--ink)}
.section-head p{margin:8px 0 0;font-size:15px;color:var(--muted);max-width:640px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-dark);white-space:nowrap}
.link-more:hover{text-decoration:underline;text-underline-offset:2px}
.link-more svg{width:16px;height:16px;transition:transform .16s ease}
.link-more:hover svg{transform:translateX(3px)}

.post-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.post-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}}
.post-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#d9dde4}
.post-cover{position:relative;aspect-ratio:16/9;background:var(--brand-soft);overflow:hidden}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.post-card:hover .post-cover img{transform:scale(1.03)}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.post-title{margin:0;font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .16s ease}
.post-card:hover .post-title{color:var(--brand-dark)}
.post-desc{margin:0;font-size:14px;line-height:1.7;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto;display:flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--brand-dark)}
.post-foot svg{width:15px;height:15px;transition:transform .16s ease}
.post-card:hover .post-foot svg{transform:translateX(3px)}

/* ============ CTA ============ */
.cta-band{padding:0 0 72px;background:var(--paper)}
@media (min-width:1024px){.cta-band{padding:0 0 96px}}
.cta-card{position:relative;overflow:hidden;display:grid;grid-template-columns:1fr;gap:26px;background:var(--night);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-lg);padding:32px 24px}
@media (min-width:900px){.cta-card{grid-template-columns:1.35fr .65fr;align-items:center;padding:48px 48px}}
.cta-card::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(135deg,rgba(244,81,30,.10) 0 12px,transparent 12px 30px);opacity:.7;pointer-events:none}
.cta-copy{position:relative;z-index:1}
.cta-copy h2{margin:0 0 12px;font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.32;color:#fff;letter-spacing:-.01em}
.cta-copy p{margin:0 0 24px;font-size:15px;line-height:1.8;color:var(--night-muted);max-width:560px}
.cta-figure{position:relative;z-index:1;border-radius:16px;overflow:hidden;aspect-ratio:16/10;background:var(--night-2)}
.cta-figure img{width:100%;height:100%;object-fit:cover;opacity:.92}

/* ============ 页脚 ============ */
.site-footer{background:var(--night);color:var(--night-muted);padding:56px 0 24px;border-top:1px solid rgba(255,255,255,.06)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{color:var(--brand);width:24px;height:24px}
.footer-brand .brand-text{color:#fff;font-size:17px}
.footer-brand .brand-thin{color:#98a1b0}
.footer-col h4{margin:0 0 14px;font-size:14px;font-weight:600;color:#fff;letter-spacing:.02em}
.footer-col p{margin:0;font-size:14px;line-height:1.8;color:var(--night-muted);max-width:340px}
.footer-col > a{display:block;font-size:14px;line-height:1.6;padding:6px 0;color:var(--night-muted);transition:color .16s ease}
.footer-col > a:hover{color:#fff}
.footer-contact{list-style:none;margin:0;padding:0;font-size:14px;line-height:1.8}
.footer-contact li{margin-bottom:8px;color:var(--night-muted)}
.footer-contact b{color:#fff;font-weight:600;margin-right:8px}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);font-size:13px;color:#8b94a3}

/* ============ 移动底部 Tab ============ */
.tabbar{display:none}
@media (max-width:1023px){
  .main-nav{display:none}
  .page-body{padding-bottom:78px}
  .tabbar{
    position:fixed;left:0;right:0;bottom:0;z-index:70;display:grid;grid-template-columns:repeat(5,1fr);
    height:60px;background:#fff;border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
    box-shadow:0 -8px 24px -16px rgba(16,21,32,.4);
  }
  .tabbar a{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:11px;color:var(--muted);transition:color .16s ease}
  .tabbar a svg{width:22px;height:22px}
  .tabbar a.is-active{color:var(--brand)}
  .tabbar a.is-active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:24px;height:2px;border-radius:0 0 2px 2px;background:var(--brand)}
}
@media (max-width:767px){
  .header-actions .btn{height:36px;padding:0 12px;font-size:13px}
  .brand-text{font-size:16px}
  .brand-mark{width:22px;height:22px}
  .article-hero{padding:26px 0 44px}
}
@media (max-width:520px){
  .header-actions{display:none}
  .header-inner{height:60px}
  .section-head{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --brand:#F4511E;
  --brand-dark:#C93B0C;
  --brand-soft:#FFF1EA;
  --accent:#12C8A0;
  --accent-dark:#0FA987;
  --gold:#FFC53D;
  --night:#101520;
  --night-2:#1A2130;
  --night-text:#EDF0F4;
  --night-muted:#A8B0BE;
  --paper:#F7F8FA;
  --card:#FFFFFF;
  --line:#E6E8EC;
  --ink:#14181F;
  --muted:#6B7280;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-btn:10px;
  --shadow-sm:0 2px 8px rgba(16,21,32,.06);
  --shadow-card:0 10px 28px -14px rgba(16,21,32,.18);
  --shadow-hover:0 18px 40px -18px rgba(244,81,30,.30);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",ui-sans-serif,system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  padding-bottom:76px;
  overflow-x:hidden;
}
@media(min-width:1024px){body{padding-bottom:0}}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-dark);text-decoration:none;transition:color .15s ease}
a:hover{text-decoration:underline;text-underline-offset:2px}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.container{padding:0 32px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px -14px rgba(16,21,32,.38)}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{width:26px;height:26px;color:var(--brand);flex:0 0 auto}
.brand-text{font-size:18px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.brand-thin{font-weight:400;color:var(--muted)}
.main-nav{display:none;align-items:center;gap:26px;margin-left:auto}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--ink);
  padding:22px 0;text-decoration:none;transition:color .15s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.main-nav a:hover{color:var(--brand-dark);text-decoration:none}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1)}
.main-nav a.active{color:var(--brand-dark)}
.header-actions{display:none;margin-left:8px}
@media(min-width:1024px){
  .main-nav{display:flex}
  .header-actions{display:flex}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;
  cursor:pointer;text-decoration:none;transition:transform .14s ease,background .14s ease,color .14s ease,border-color .14s ease,box-shadow .14s ease;
}
.btn:hover{text-decoration:none}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px -12px rgba(244,81,30,.75)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 14px 28px -12px rgba(244,81,30,.55)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-dark);text-decoration:none}
.btn-sm{height:40px;padding:0 18px;font-size:14px}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:22px 0 0;flex-wrap:wrap}
.breadcrumb a{color:var(--muted);text-decoration:none}
.breadcrumb a:hover{color:var(--brand-dark);text-decoration:none}
.breadcrumb .current{color:var(--ink);font-weight:600}
.breadcrumb .sep{color:#C4C9D2}

/* ---------- Hero ---------- */
.cat-hero{padding-bottom:8px;background:var(--paper)}
.cat-hero-grid{display:grid;gap:32px;padding:36px 0 0}
@media(min-width:960px){
  .cat-hero-grid{grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;padding:48px 0 0}
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.04em;font-weight:600;
  color:var(--brand-dark);background:var(--brand-soft);
  border-radius:999px;padding:5px 13px;
}
.cat-hero-copy h1{
  font-size:clamp(28px,4.2vw,46px);
  line-height:1.22;font-weight:700;letter-spacing:-.01em;
  margin:16px 0 0;color:var(--ink);
}
.cat-hero-copy h1 .h1-sep{color:var(--brand);padding:0 2px}
.hero-sub{font-size:18px;font-weight:600;color:var(--ink);margin:16px 0 0;line-height:1.7}
.hero-desc{font-size:16px;color:var(--muted);margin:12px 0 0;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-actions .btn{flex:1 1 auto;min-width:150px}
@media(min-width:520px){.hero-actions .btn{flex:0 0 auto}}
.cat-hero-media{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  background:var(--brand-soft);box-shadow:var(--shadow-card);
  aspect-ratio:16/11;
}
.cat-hero-media img{width:100%;height:100%;object-fit:cover}
.cat-hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(16,21,32,0) 45%,rgba(16,21,32,.55) 100%);
  pointer-events:none;
}
.cat-hero-media figcaption{
  position:absolute;left:16px;right:16px;bottom:14px;z-index:2;
  color:#fff;font-size:13px;line-height:1.6;letter-spacing:.02em;
}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:12px;
  margin:34px 0 0;padding:18px 0 0;border-top:1px solid var(--line);
}
.hero-stats div{display:flex;flex-direction:column;gap:2px}
.hero-stats b{
  font-size:22px;font-weight:700;color:var(--ink);
  font-variant-numeric:tabular-nums;
  font-family:ui-sans-serif,system-ui,"PingFang SC",sans-serif;
}
.hero-stats span{font-size:13px;color:var(--muted);line-height:1.5}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0}
@media(min-width:1024px){.section{padding:88px 0}}
.section-head{max-width:720px;margin-bottom:32px}
.section-head h2{font-size:28px;line-height:1.3;margin:14px 0 10px}
@media(min-width:1024px){.section-head h2{font-size:32px}}
.section-head p{color:var(--muted);font-size:16px}
.section-white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-night{background:var(--night);color:var(--night-text)}
.section-night .section-head h2{color:#fff}
.section-night .section-head p{color:var(--night-muted)}
.section-night .eyebrow{background:rgba(244,81,30,.16);color:#FF8A5C}

/* ---------- 玩法矩阵 ---------- */
.matrix{display:grid;gap:18px;grid-template-columns:1fr}
@media(min-width:768px){.matrix{grid-template-columns:repeat(2,1fr);gap:20px}}
.matrix-card{
  display:grid;grid-template-columns:112px 1fr;gap:16px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:16px;box-shadow:var(--shadow-sm);color:var(--ink);text-decoration:none;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.matrix-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#F7C9B8;text-decoration:none}
.matrix-card:hover h3{color:var(--brand-dark)}
.matrix-thumb{
  width:112px;aspect-ratio:4/3;border-radius:12px;overflow:hidden;
  background:var(--brand-soft);flex:0 0 auto;
}
.matrix-thumb img{width:100%;height:100%;object-fit:cover}
.matrix-body h3{font-size:19px;line-height:1.4;margin:6px 0 4px;transition:color .2s ease}
.matrix-body p{font-size:14px;color:var(--muted);line-height:1.7;margin:0}
.matrix-tag{
  display:inline-block;font-size:12px;letter-spacing:.04em;font-weight:600;
  color:var(--brand-dark);background:var(--brand-soft);
  border-radius:999px;padding:2px 10px;
}
.matrix-more{
  display:inline-flex;align-items:center;gap:4px;margin-top:10px;
  font-size:13px;font-weight:600;color:var(--brand-dark);
}
.matrix-more svg{width:14px;height:14px}
@media(max-width:520px){
  .matrix-card{grid-template-columns:92px 1fr;gap:13px;padding:14px}
  .matrix-thumb{width:92px}
  .matrix-body h3{font-size:17px}
  .matrix-body p{font-size:13px}
}

/* ---------- 规则要点 ---------- */
.rules{list-style:none;padding:0;margin:0;border-top:1px solid rgba(255,255,255,.08)}
.rule-item{
  display:grid;grid-template-columns:56px 1fr;gap:16px;
  padding:20px 0;border-bottom:1px solid rgba(255,255,255,.08);
}
@media(min-width:768px){.rule-item{grid-template-columns:76px 1fr;gap:24px;padding:24px 0}}
.rule-num{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:20px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;line-height:1.4;
}
.rule-item h3{font-size:18px;line-height:1.4;margin:0 0 6px;color:#fff}
.rule-item p{font-size:15px;color:var(--night-muted);line-height:1.8;margin:0}

/* ---------- 流程时间线 ---------- */
.flow{display:grid;gap:16px;grid-template-columns:1fr}
@media(min-width:768px){.flow{grid-template-columns:repeat(4,1fr);gap:18px}}
.flow-step{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);padding:22px 20px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease;
}
.flow-step:hover{transform:translateY(-2px);box-shadow:var(--shadow-card)}
.flow-dot{
  width:12px;height:12px;border-radius:999px;background:var(--brand);
  box-shadow:0 0 0 4px rgba(244,81,30,.14);margin-bottom:14px;
}
.flow-step .flow-idx{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.06em;
}
.flow-step h3{font-size:17px;margin:4px 0 6px;color:var(--ink)}
.flow-step p{font-size:14px;color:var(--muted);line-height:1.7;margin:0}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;gap:14px;grid-template-columns:1fr}
@media(min-width:900px){.faq-grid{grid-template-columns:repeat(2,1fr);gap:16px}}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  overflow:hidden;box-shadow:var(--shadow-sm);transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item.open{border-color:#F7C9B8;box-shadow:var(--shadow-card)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);
  transition:color .15s ease;
}
.faq-q:hover{color:var(--brand-dark)}
.faq-icon{
  width:22px;height:22px;flex:0 0 auto;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);
  display:flex;align-items:center;justify-content:center;
  transition:transform .2s ease,background .2s ease,color .2s ease;
}
.faq-icon svg{width:12px;height:12px}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--brand);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease}
.faq-item.open .faq-a{max-height:360px}
.faq-a p{padding:0 20px 18px;font-size:15px;color:var(--muted);line-height:1.8;margin:0}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:var(--night);color:#fff;
  padding:32px 22px;display:grid;gap:26px;
}
@media(min-width:900px){
  .cta-band{grid-template-columns:1fr 300px;align-items:center;gap:40px;padding:48px}
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(560px 260px at 88% 12%,rgba(244,81,30,.30),transparent 70%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:2}
.cta-copy h2{font-size:26px;line-height:1.32;color:#fff;margin-bottom:12px}
@media(min-width:1024px){.cta-copy h2{font-size:32px}}
.cta-copy p{font-size:15px;color:var(--night-muted);line-height:1.8;margin-bottom:8px}
.cta-copy .btn{margin-top:18px}
.cta-media{position:relative;z-index:2;border-radius:16px;overflow:hidden;aspect-ratio:4/3;background:var(--night-2)}
.cta-media img{width:100%;height:100%;object-fit:cover;opacity:.9}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--night);color:var(--night-muted);padding:48px 0 24px}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:14px}
.footer-brand .brand-mark{color:var(--brand)}
.footer-col p{font-size:14px;line-height:1.8;color:var(--night-muted);margin:0}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin:0 0 14px}
.footer-col a{display:block;font-size:14px;color:var(--night-muted);padding:5px 0;text-decoration:none;transition:color .15s ease}
.footer-col a:hover{color:#fff;text-decoration:none}
.footer-contact{list-style:none;padding:0;margin:0;font-size:14px}
.footer-contact li{display:flex;gap:10px;padding:5px 0;line-height:1.6}
.footer-contact b{color:#fff;font-weight:600;flex:0 0 auto}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;
  font-size:13px;color:#8A93A3;
  margin-top:34px;padding-top:18px;border-top:1px solid rgba(255,255,255,.08);
}

/* ---------- 移动底部 Tab ---------- */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:grid;grid-template-columns:repeat(5,1fr);
  background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -6px 20px -16px rgba(16,21,32,.45);
}
@media(min-width:1024px){.mobile-tabbar{display:none}}
.tab-item{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;height:60px;font-size:11px;color:var(--muted);text-decoration:none;
  transition:color .15s ease;
}
.tab-item svg{width:22px;height:22px}
.tab-item:hover{color:var(--brand-dark);text-decoration:none}
.tab-item.active{color:var(--brand)}
.tab-item.active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:24px;height:2px;border-radius:2px;background:var(--brand);
}

/* roulang page: category2 */
:root{
  --brand:#F4511E;
  --brand-dark:#C93B0C;
  --brand-soft:#FFF1EA;
  --accent:#12C8A0;
  --accent-deep:#0FA987;
  --gold:#FFC53D;
  --night:#101520;
  --night-2:#1A2130;
  --night-text:#EDF0F4;
  --night-muted:#A8B0BE;
  --paper:#F7F8FA;
  --card:#FFFFFF;
  --line:#E6E8EC;
  --ink:#14181F;
  --muted:#6B7280;
  --r-card:16px;
  --r-lg:20px;
  --r-btn:10px;
  --sh-1:0 2px 8px rgba(16,21,32,.06);
  --sh-2:0 10px 28px -14px rgba(16,21,32,.18);
  --sh-3:0 18px 40px -18px rgba(244,81,30,.30);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  padding-bottom:76px;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--brand-dark);text-decoration:none;transition:color .14s ease}
a:hover{color:var(--brand)}
img{max-width:100%;display:block}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums;font-family:ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:background .14s ease,color .14s ease,border-color .14s ease,transform .14s ease,box-shadow .14s ease;
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px -12px rgba(244,81,30,.9)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-dark)}
.btn-light{background:#fff;color:var(--night)}
.btn-light:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px)}
.btn-outline-light{border-color:rgba(255,255,255,.28);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.55);color:#fff}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--night);
  border-bottom:1px solid rgba(255,255,255,.07);
  transition:background .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-solid{background:#fff;border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;letter-spacing:-.01em;color:#fff}
.brand:hover{color:#fff}
.brand-mark{width:26px;height:26px;color:var(--brand);flex:none}
.brand-thin{font-weight:400;opacity:.88}
.main-nav{display:none;align-items:center;gap:26px;margin-left:auto}
.main-nav a{position:relative;padding:6px 0;font-size:15px;font-weight:500;color:rgba(255,255,255,.86)}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.main-nav a:hover{color:#fff}
.main-nav a:hover::after,.main-nav a.is-active::after{transform:scaleX(1)}
.main-nav a.is-active{color:#fff;font-weight:600}
.header-actions{display:none;margin-left:12px}
.site-header.is-solid .brand{color:var(--ink)}
.site-header.is-solid .main-nav a{color:rgba(20,24,31,.78)}
.site-header.is-solid .main-nav a:hover,.site-header.is-solid .main-nav a.is-active{color:var(--brand-dark)}
@media (min-width:1024px){
  .main-nav{display:flex}
  .header-actions{display:block}
}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--night);color:var(--night-text);padding:8px 0 52px}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-2.png) center/cover no-repeat;
  opacity:.3;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(16,21,32,.84) 0%,rgba(16,21,32,.94) 55%,rgba(16,21,32,.98) 100%);
}
.hero > .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0 26px;font-size:13px;color:var(--night-muted)}
.crumb a{color:var(--night-muted)}
.crumb a:hover{color:#fff}
.crumb span.dot{opacity:.5}
.crumb .current{color:#fff}
.hero-inner{display:grid;grid-template-columns:1fr;gap:36px;align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:12px;letter-spacing:.08em;
  color:#FFB79A;background:rgba(244,81,30,.14);border:1px solid rgba(244,81,30,.5);
}
.hero h1{
  margin-top:18px;
  font-size:clamp(28px,4vw,50px);
  font-weight:700;line-height:1.22;letter-spacing:-.01em;color:#fff;
}
.hero-lead{margin-top:16px;font-size:17px;line-height:1.8;color:#D8DDE6;max-width:34em}
.hero-note{margin-top:10px;font-size:14px;color:var(--night-muted);max-width:36em}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-figure{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 30px 60px -32px rgba(0,0,0,.85);
  aspect-ratio:16/10;background:var(--brand-soft);
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-stats{display:grid;grid-template-columns:1fr;gap:12px;margin-top:40px}
.stat{
  background:rgba(255,255,255,.055);
  border:1px solid rgba(255,255,255,.1);
  border-radius:14px;padding:16px 18px;
}
.stat b{display:block;font-size:24px;line-height:1.25;color:#fff;font-variant-numeric:tabular-nums;font-family:ui-sans-serif,system-ui,sans-serif}
.stat span{font-size:13px;color:var(--night-muted)}
@media (min-width:640px){.hero-stats{grid-template-columns:repeat(3,1fr)}}
@media (min-width:1024px){
  .hero{padding-bottom:72px}
  .hero-inner{grid-template-columns:1.05fr .95fr;gap:56px}
}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0}
.section-white{background:#fff}
.section-paper{background:var(--paper)}
.section-head{max-width:680px;margin-bottom:36px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.1em;color:var(--brand-dark)}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--brand)}
.section-head h2{margin-top:10px;font-size:clamp(24px,3vw,32px);font-weight:600;line-height:1.3;letter-spacing:-.01em}
.section-head p{margin-top:12px;font-size:15px;color:var(--muted)}
@media (min-width:768px){.section{padding:88px 0}}

/* ---------- 档位卡 ---------- */
.tier-scroll{
  display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 20px 20px;margin:0 -20px;
  -webkit-overflow-scrolling:touch;
}
.tier-scroll::-webkit-scrollbar{height:6px}
.tier-scroll::-webkit-scrollbar-thumb{background:#D8DCE3;border-radius:999px}
.tier-card{
  flex:0 0 78%;scroll-snap-align:start;
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tier-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#F3C9B8}
.tier-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.tier-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;font-size:12px;font-weight:600;
  color:#8A5B00;background:#FFF9E8;border:1px solid var(--gold);
}
.tier-level{font-size:12px;color:var(--muted);letter-spacing:.04em}
.tier-card h3{margin-top:16px;font-size:20px;font-weight:600;line-height:1.4}
.tier-card .tier-desc{margin-top:8px;font-size:14px;line-height:1.75;color:var(--muted);min-height:72px}
.tier-meta{margin-top:16px;padding-top:16px;border-top:1px dashed var(--line);font-size:13px;color:var(--muted);display:grid;gap:6px}
.tier-meta b{color:var(--ink);font-weight:600}
.tier-card .btn{margin-top:18px}
@media (min-width:768px){.tier-card{flex:0 0 46%}}
@media (min-width:1024px){
  .tier-scroll{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;overflow:visible;padding:0;margin:0}
  .tier-card{flex:none}
}

/* ---------- 流程时间轴 ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:18px}
.step{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.step::before{
  content:"";position:absolute;left:24px;right:24px;top:0;height:3px;border-radius:0 0 3px 3px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  opacity:.85;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.step-num{font-size:30px;font-weight:700;line-height:1;color:var(--brand);font-variant-numeric:tabular-nums;font-family:ui-sans-serif,system-ui,sans-serif}
.step h3{margin-top:14px;font-size:18px;font-weight:600}
.step p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--muted)}
.step-key{margin-top:14px;display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:var(--accent-deep)}
.step-key svg{width:14px;height:14px}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,1fr);gap:22px}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);gap:24px}}

/* ---------- 进度条 ---------- */
.progress-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);margin-top:28px}
.progress-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:8px;margin-bottom:18px}
.progress-head h3{font-size:17px;font-weight:600}
.progress-head .val{font-size:14px;color:var(--muted)}
.progress-head .val b{color:var(--brand-dark);font-size:18px;font-variant-numeric:tabular-nums}
.progress-track{position:relative;height:8px;border-radius:999px;background:#EDEFF3;overflow:visible}
.progress-fill{
  position:absolute;left:0;top:0;bottom:0;width:58%;border-radius:999px;
  background:linear-gradient(90deg,var(--accent),var(--accent-deep));
  transition:width .6s ease-out;
}
.progress-nodes{position:relative;height:20px;margin-top:10px}
.progress-nodes .node{position:absolute;top:0;transform:translateX(-50%);text-align:center;font-size:12px;color:var(--muted);white-space:nowrap}
.progress-nodes .node::before{
  content:"";display:block;width:12px;height:12px;border-radius:50%;
  background:#fff;border:2px solid #CDD3DC;margin:0 auto 4px;
}
.progress-nodes .node.done::before{background:var(--accent);border-color:var(--accent)}
.progress-nodes .node.done{color:var(--accent-deep);font-weight:600}

/* ---------- 档位对比 ---------- */
.compare{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.compare-row{
  display:grid;grid-template-columns:1fr;gap:6px;
  padding:18px 22px;border-bottom:1px solid var(--line);
  transition:background .14s ease;
}
.compare-row:last-child{border-bottom:0}
.compare-row:hover{background:#FBFCFD}
.compare-row .c-name{font-size:16px;font-weight:600}
.compare-row .c-req{font-size:14px;color:var(--brand-dark);font-variant-numeric:tabular-nums;font-weight:600}
.compare-row .c-reward{font-size:14px;color:var(--muted)}
.compare-row .c-time{font-size:14px;color:var(--muted)}
.status{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;white-space:nowrap}
.status-on{color:#0B7F66;background:rgba(18,200,160,.14)}
.status-off{color:#6B7280;background:#EFF1F4}
.compare-head{display:none}
@media (min-width:900px){
  .compare-row{grid-template-columns:1.1fr .9fr 2fr 1fr auto;align-items:center;gap:16px;padding:20px 24px}
  .compare-head{
    display:grid;background:#FAFBFC;font-size:13px;font-weight:600;color:var(--muted);
    grid-template-columns:1.1fr .9fr 2fr 1fr auto;gap:16px;padding:14px 24px;
    border-bottom:1px solid var(--line);
  }
}

/* ---------- 图文说明 ---------- */
.split{display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
.split-figure{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  background:var(--brand-soft);aspect-ratio:16/11;box-shadow:var(--sh-2);
}
.split-figure img{width:100%;height:100%;object-fit:cover}
.split-body h2{margin-top:10px;font-size:clamp(24px,3vw,32px);font-weight:600;line-height:1.3}
.split-body p{margin-top:14px;font-size:15px;color:var(--muted)}
.check-list{margin-top:22px;display:grid;gap:12px}
.check-list li{display:flex;gap:10px;font-size:15px;line-height:1.7;color:var(--ink)}
.check-list svg{width:18px;height:18px;flex:none;margin-top:5px;color:var(--accent)}
@media (min-width:1024px){.split{grid-template-columns:1fr 1.05fr;gap:56px}}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1fr;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  transition:border-color .16s ease,box-shadow .16s ease;
}
.faq-item:hover{border-color:#F0C7B6}
.faq-item.is-open{border-color:#F3C9B8;box-shadow:var(--sh-1)}
.faq-btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-btn:hover{color:var(--brand-dark)}
.faq-icon{
  width:22px;height:22px;flex:none;color:var(--brand);
  transition:transform .2s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-panel{display:grid;grid-template-rows:0fr;transition:grid-template-rows .2s ease}
.faq-panel > div{overflow:hidden}
.faq-panel p{padding:0 20px 18px;font-size:15px;line-height:1.8;color:var(--muted)}
.faq-item.is-open .faq-panel{grid-template-rows:1fr}
@media (min-width:900px){
  .faq-grid{grid-template-columns:1fr 1fr;gap:16px;align-items:start}
}

/* ---------- CTA ---------- */
.cta{
  position:relative;overflow:hidden;
  background:var(--night);color:var(--night-text);
  border-radius:24px;padding:36px 26px;
}
.cta::before{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(244,81,30,.42),transparent 68%);
}
.cta-inner{position:relative;z-index:2;display:grid;gap:28px;align-items:center}
.cta h2{font-size:clamp(22px,3vw,30px);font-weight:600;line-height:1.32;color:#fff}
.cta p{margin-top:12px;font-size:15px;color:var(--night-muted);max-width:34em}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-figure{display:none}
@media (min-width:768px){.cta{padding:48px 44px}}
@media (min-width:1024px){
  .cta-inner{grid-template-columns:1.35fr .65fr;gap:40px}
  .cta-figure{display:block;border-radius:16px;overflow:hidden;aspect-ratio:4/3;border:1px solid rgba(255,255,255,.12)}
  .cta-figure img{width:100%;height:100%;object-fit:cover}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--night);color:var(--night-muted);padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff}
.footer-col p{margin-top:14px;font-size:14px;line-height:1.8;color:var(--night-muted);max-width:30em}
.footer-col h4{margin-bottom:14px;font-size:14px;font-weight:600;color:#fff;letter-spacing:.02em}
.footer-col a{display:block;padding:5px 0;font-size:14px;color:rgba(255,255,255,.7)}
.footer-col a:hover{color:#fff}
.footer-contact li{font-size:14px;line-height:1.9;color:rgba(255,255,255,.7)}
.footer-contact b{color:#fff;font-weight:600;margin-right:8px}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}
@media (min-width:768px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}}

/* ---------- 移动底部 Tab ---------- */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:grid;grid-template-columns:repeat(5,1fr);
  background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -4px 16px rgba(16,21,32,.07);
}
.tab-item{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;height:60px;font-size:11px;color:var(--muted);
  transition:color .14s ease;
}
.tab-item svg{width:22px;height:22px}
.tab-item:hover{color:var(--brand-dark)}
.tab-item.is-active{color:var(--brand)}
.tab-item.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:24px;height:2px;border-radius:2px;background:var(--brand);
}
@media (min-width:1024px){
  .mobile-tab{display:none}
  body{padding-bottom:0}
}

/* roulang page: category3 */
:root{
    --brand:#F4511E;
    --brand-dark:#C93B0C;
    --brand-soft:#FFF1EA;
    --accent:#12C8A0;
    --accent-deep:#0FA987;
    --gold:#FFC53D;
    --night:#101520;
    --night-2:#1A2130;
    --night-text:#EDF0F4;
    --night-muted:#A8B0BE;
    --paper:#F7F8FA;
    --card:#FFFFFF;
    --line:#E6E8EC;
    --ink:#14181F;
    --muted:#6B7280;
    --radius-sm:10px;
    --radius:16px;
    --radius-lg:20px;
    --shadow-1:0 2px 8px rgba(16,21,32,.06);
    --shadow-2:0 10px 28px -14px rgba(16,21,32,.18);
    --shadow-hover:0 18px 40px -18px rgba(244,81,30,.30);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
  body{
    margin:0;
    font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
    font-size:16px;
    line-height:1.8;
    color:var(--ink);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
    letter-spacing:0;
  }
  img{display:block;max-width:100%;height:auto}
  a{color:var(--brand-dark);text-decoration:none;transition:color .18s ease,text-decoration-color .18s ease}
  a:hover{text-decoration:underline;text-underline-offset:2px}
  button{font-family:inherit}
  a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
    outline:2px solid var(--brand);
    outline-offset:2px;
    border-radius:8px;
  }
  h1,h2,h3,h4{margin:0;letter-spacing:-.01em}
  p{margin:0}
  ul,ol{margin:0;padding:0;list-style:none}
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
  @media (min-width:768px){.container{padding:0 32px}}

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:#fff;
    border-bottom:1px solid var(--line);
    transition:box-shadow .2s ease;
  }
  .site-header.is-scrolled{box-shadow:0 6px 20px -14px rgba(16,21,32,.35)}
  .header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
  .brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none}
  .brand:hover{text-decoration:none}
  .brand-mark{width:26px;height:26px;color:var(--brand);flex:0 0 auto}
  .brand-text{font-size:18px;font-weight:700;line-height:1.2;color:var(--ink);white-space:nowrap}
  .brand-thin{font-weight:400;color:#4B5563}
  .main-nav{display:flex;align-items:center;gap:26px}
  .main-nav a{
    position:relative;
    font-size:15px;
    font-weight:500;
    color:var(--ink);
    padding:6px 0;
  }
  .main-nav a:hover{color:var(--brand-dark);text-decoration:none}
  .main-nav a::after{
    content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
    background:var(--brand);border-radius:2px;opacity:0;transform:scaleX(.4);
    transition:opacity .18s ease,transform .18s ease;
  }
  .main-nav a:hover::after{opacity:.35;transform:scaleX(1)}
  .main-nav a.active{color:var(--brand-dark)}
  .main-nav a.active::after{opacity:1;transform:scaleX(1)}
  .header-actions{display:flex;align-items:center;gap:10px}
  @media (max-width:1023px){
    .main-nav{display:none}
    .header-actions{display:none}
  }

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 22px;border-radius:var(--radius-sm);
    font-size:15px;font-weight:600;line-height:1;
    border:1px solid transparent;cursor:pointer;
    transition:background .14s ease,color .14s ease,border-color .14s ease,transform .14s ease,box-shadow .14s ease;
    white-space:nowrap;
  }
  .btn:hover{text-decoration:none}
  .btn:active{transform:scale(.98)}
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px -12px rgba(244,81,30,.9)}
  .btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px -14px rgba(244,81,30,.75)}
  .btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
  .btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-dark);transform:translateY(-1px)}
  .btn-on-dark{background:var(--brand);color:#fff}
  .btn-on-dark:hover{background:#fff;color:var(--brand-dark)}
  .btn-light{background:#fff;color:var(--night);border-color:transparent}
  .btn-light:hover{background:var(--brand-soft);color:var(--brand-dark)}
  .btn-sm{height:40px;padding:0 16px;font-size:14px}
  .btn-block{width:100%}

  /* ---------- badges & tags ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 10px;border-radius:999px;
    font-size:12px;font-weight:600;letter-spacing:.04em;line-height:1.5;
    background:var(--brand-soft);color:var(--brand-dark);
  }
  .badge-accent{background:rgba(18,200,160,.14);color:#0B8F72}
  .badge-muted{background:#F1F2F4;color:#6B7280}
  .badge-gold{background:#FFF8E6;border:1px solid var(--gold);color:#8A6100}
  .tag-row{display:flex;flex-wrap:wrap;gap:8px}

  /* ---------- hero ---------- */
  .hero{
    position:relative;
    padding:48px 0 56px;
    background:linear-gradient(180deg,#FFFFFF 0%,var(--paper) 100%);
    border-bottom:1px solid var(--line);
  }
  .hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center}
  .hero-title{
    font-size:clamp(26px,3.6vw,40px);
    font-weight:700;line-height:1.24;letter-spacing:-.01em;
    margin:14px 0 14px;
  }
  .hero-title .thin{font-weight:400;color:var(--muted)}
  .hero-sub{font-size:17px;color:#3D4450;margin-bottom:10px}
  .hero-note{font-size:14px;color:var(--muted)}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
  .hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:30px}
  .stat{
    background:#fff;border:1px solid var(--line);border-radius:14px;
    padding:12px 14px;box-shadow:var(--shadow-1);
  }
  .stat-value{font-size:22px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.2;color:var(--ink)}
  .stat-value span{font-size:13px;font-weight:500;color:var(--muted)}
  .stat-label{font-size:13px;color:var(--muted);margin-top:2px}
  .hero-figure{
    position:relative;border-radius:var(--radius-lg);overflow:hidden;
    aspect-ratio:4/3;background:var(--brand-soft);box-shadow:var(--shadow-2);
  }
  .hero-figure img{width:100%;height:100%;object-fit:cover}
  .hero-figure::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(16,21,32,.06) 0%,rgba(16,21,32,.42) 100%);
  }
  .hero-figure-cap{
    position:absolute;left:16px;right:16px;bottom:14px;z-index:2;
    color:#fff;font-size:13px;line-height:1.6;
    display:flex;align-items:center;gap:8px;
  }
  .hero-figure-cap i{
    display:inline-block;width:6px;height:6px;border-radius:999px;background:var(--accent);
  }
  @media (max-width:900px){
    .hero-grid{grid-template-columns:1fr;gap:28px}
    .hero-figure{aspect-ratio:16/10}
  }
  @media (max-width:520px){
    .hero{padding:32px 0 40px}
    .hero-stats{grid-template-columns:1fr 1fr}
  }

  /* ---------- sections ---------- */
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  .section-white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .section-paper{background:var(--paper)}
  .section-night{background:var(--night);color:var(--night-text)}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:24px}
  .section-title{font-size:clamp(22px,2.4vw,30px);font-weight:600;line-height:1.3}
  .section-desc{color:var(--muted);font-size:15px;margin-top:6px;max-width:660px}
  .section-night .section-desc{color:var(--night-muted)}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
    color:var(--brand-dark);
  }
  .eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--brand)}
  .section-night .eyebrow{color:var(--gold)}
  .section-night .eyebrow::before{background:var(--gold)}

  /* ---------- progress ---------- */
  .progress-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:22px;box-shadow:var(--shadow-1);
  }
  .progress-top{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:14px}
  .progress-label{font-size:14px;font-weight:600}
  .progress-num{font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums}
  .progress-track{height:8px;border-radius:999px;background:#E9EBEF;overflow:hidden}
  .progress-fill{
    height:100%;width:60%;border-radius:999px;
    background:linear-gradient(90deg,var(--accent),var(--accent-deep));
    transition:width .6s ease-out;
  }
  .progress-nodes{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:16px}
  .node{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted)}
  .node b{font-size:13px;color:var(--ink);font-weight:600;display:flex;align-items:center;gap:6px}
  .node .dot{width:12px;height:12px;border-radius:999px;border:2px solid #CFD4DC;background:#fff;flex:0 0 auto}
  .node.done .dot{background:var(--accent);border-color:var(--accent)}
  .node.current .dot{background:#fff;border-color:var(--brand)}
  .node em{font-style:normal;font-variant-numeric:tabular-nums}
  .progress-layout{display:grid;grid-template-columns:1.6fr .9fr;gap:20px;align-items:start}
  .aside-card{
    background:var(--brand-soft);border:1px solid #FFDCCB;border-radius:var(--radius);
    padding:20px;
  }
  .aside-card h3{font-size:17px;font-weight:600;margin-bottom:6px}
  .aside-card p{font-size:14px;color:#7A4A34;margin-bottom:14px}
  @media (max-width:900px){.progress-layout{grid-template-columns:1fr}}

  /* ---------- task lists ---------- */
  .task-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
  @media (max-width:860px){.task-grid{grid-template-columns:1fr}}
  .task-panel{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:18px 18px 8px;box-shadow:var(--shadow-1);
    transition:box-shadow .2s ease,transform .2s ease;
  }
  .task-panel:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
  .task-panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px}
  .task-panel-head h3{font-size:18px;font-weight:600}
  .task-panel-sub{font-size:13px;color:var(--muted);margin-bottom:10px}
  .task-item{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px dashed var(--line)}
  .task-item:last-child{border-bottom:0}
  .task-check{
    width:20px;height:20px;border-radius:6px;flex:0 0 auto;margin-top:4px;
    border:1.5px solid #CFD4DC;display:grid;place-items:center;color:#fff;background:#fff;
  }
  .task-check.done{background:var(--accent);border-color:var(--accent)}
  .task-check svg{width:12px;height:12px}
  .task-body{flex:1 1 auto;min-width:0}
  .task-title{font-size:15px;font-weight:600;line-height:1.6}
  .task-desc{font-size:13px;color:var(--muted);line-height:1.6;margin-top:2px}
  .task-side{flex:0 0 auto;text-align:right;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;line-height:1.6}
  .task-side b{display:block;color:var(--ink);font-size:13px}

  /* ---------- badge wall ---------- */
  .badge-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
  @media (max-width:900px){.badge-grid{grid-template-columns:repeat(3,1fr)}}
  @media (max-width:620px){.badge-grid{grid-template-columns:repeat(2,1fr)}}
  .badge-card{
    background:#fff;border:1px solid var(--line);border-radius:14px;
    padding:16px 12px;text-align:center;
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .badge-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#FFDCCB}
  .badge-card.locked{background:#FAFAFB;border-style:dashed;color:#9AA3AF}
  .badge-icon{
    width:46px;height:46px;margin:0 auto 10px;border-radius:12px;
    display:grid;place-items:center;background:var(--brand-soft);color:var(--brand);
  }
  .badge-card.locked .badge-icon{background:#F1F2F4;color:#9AA3AF}
  .badge-icon svg{width:24px;height:24px}
  .badge-name{font-size:14px;font-weight:600;color:var(--ink);line-height:1.5}
  .badge-card.locked .badge-name{color:#8A919E}
  .badge-cond{font-size:12px;color:var(--muted);margin-top:4px;line-height:1.6}
  .badge-state{display:inline-block;margin-top:8px;font-size:11px;letter-spacing:.04em;padding:2px 8px;border-radius:999px;background:rgba(18,200,160,.14);color:#0B8F72;font-weight:600}
  .badge-card.locked .badge-state{background:#F1F2F4;color:#8A919E}

  /* ---------- steps ---------- */
  .step-list{display:grid;gap:12px}
  .step{
    display:flex;gap:16px;align-items:flex-start;
    background:#fff;border:1px solid var(--line);border-radius:14px;
    padding:16px 18px;transition:box-shadow .2s ease,border-color .2s ease;
  }
  .step:hover{border-color:#FFD6C2;box-shadow:var(--shadow-2)}
  .step-num{
    font-variant-numeric:tabular-nums;font-size:14px;font-weight:700;
    color:var(--brand-dark);background:var(--brand-soft);
    width:38px;height:38px;border-radius:10px;display:grid;place-items:center;flex:0 0 auto;
  }
  .step h3{font-size:16px;font-weight:600;margin-bottom:2px}
  .step p{font-size:14px;color:var(--muted)}

  /* ---------- FAQ ---------- */
  .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:start}
  @media (max-width:768px){.faq-grid{grid-template-columns:1fr}}
  .faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;
    padding:15px 18px;background:none;border:0;cursor:pointer;text-align:left;
    font-size:15px;font-weight:600;color:var(--ink);line-height:1.6;
  }
  .faq-q:hover{color:var(--brand-dark)}
  .faq-icon{
    width:22px;height:22px;flex:0 0 auto;border-radius:999px;border:1px solid var(--line);
    display:grid;place-items:center;color:var(--brand-dark);
    transition:transform .2s ease,background .2s ease,color .2s ease;
  }
  .faq-item.open .faq-icon{transform:rotate(45deg);background:var(--brand);border-color:var(--brand);color:#fff}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease}
  .faq-a p{padding:0 18px 16px;font-size:14px;color:var(--muted);line-height:1.8}

  /* ---------- CTA ---------- */
  .cta-card{
    position:relative;overflow:hidden;
    background:var(--night);color:var(--night-text);
    border-radius:var(--radius-lg);
    padding:36px;
    display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:center;
  }
  .cta-card h2{font-size:clamp(22px,2.6vw,30px);font-weight:600;line-height:1.3;margin-bottom:10px}
  .cta-card p{color:var(--night-muted);font-size:15px;margin-bottom:6px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
  .cta-figure{aspect-ratio:16/11;border-radius:16px;overflow:hidden;background:var(--night-2);opacity:.92}
  .cta-figure img{width:100%;height:100%;object-fit:cover}
  @media (max-width:860px){
    .cta-card{grid-template-columns:1fr;padding:26px}
    .cta-figure{order:-1;aspect-ratio:16/9}
  }

  /* ---------- related categories ---------- */
  .rel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
  @media (max-width:900px){.rel-grid{grid-template-columns:1fr 1fr}}
  @media (max-width:520px){.rel-grid{grid-template-columns:1fr}}
  .rel-card{
    display:flex;flex-direction:column;
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    overflow:hidden;color:var(--ink);text-decoration:none;
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#FFD6C2;text-decoration:none}
  .rel-card:hover .rel-title{color:var(--brand-dark)}
  .rel-thumb{aspect-ratio:16/9;background:var(--brand-soft);overflow:hidden}
  .rel-thumb img{width:100%;height:100%;object-fit:cover}
  .rel-body{padding:14px 16px 16px}
  .rel-title{font-size:15px;font-weight:600;line-height:1.5;transition:color .18s ease}
  .rel-desc{font-size:13px;color:var(--muted);margin-top:4px;line-height:1.6}

  /* ---------- breadcrumb ---------- */
  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:6px}
  .crumb a{color:var(--muted)}
  .crumb a:hover{color:var(--brand-dark)}
  .crumb span{color:#9AA3AF}

  /* ---------- footer ---------- */
  .site-footer{background:var(--night);color:var(--night-text);padding:56px 0 24px;margin-top:0}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
  .footer-brand .brand-mark{color:var(--brand)}
  .footer-brand .brand-text{color:#fff}
  .footer-brand .brand-thin{color:#B9C0CC}
  .footer-col p{font-size:14px;color:var(--night-muted);line-height:1.9}
  .footer-col h4{font-size:14px;font-weight:600;margin-bottom:12px;color:#fff}
  .footer-col a{display:block;font-size:14px;color:#B9C0CC;padding:5px 0}
  .footer-col a:hover{color:#fff;text-decoration:none}
  .footer-contact{display:grid;gap:8px;font-size:14px;color:#B9C0CC}
  .footer-contact li{display:flex;gap:10px;line-height:1.7}
  .footer-contact b{color:#fff;font-weight:500;flex:0 0 auto;min-width:34px}
  .footer-bottom{
    margin-top:28px;padding-top:16px;border-top:1px solid rgba(255,255,255,.12);
    display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
    font-size:13px;color:#8F98A6;
  }
  @media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}}
  @media (max-width:560px){.footer-grid{grid-template-columns:1fr}.site-footer{padding:40px 0 20px}}

  /* ---------- mobile tab ---------- */
  .mobile-tab{
    display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;
    background:#fff;border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
    box-shadow:0 -6px 20px -16px rgba(16,21,32,.5);
  }
  .mobile-tab-inner{display:grid;grid-template-columns:repeat(5,1fr);height:60px}
  .tab-item{
    position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
    font-size:11px;color:var(--muted);text-decoration:none;
  }
  .tab-item:hover{text-decoration:none;color:var(--brand-dark)}
  .tab-item svg{width:22px;height:22px}
  .tab-item.active{color:var(--brand);font-weight:600}
  .tab-item.active::before{
    content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
    width:26px;height:2px;border-radius:2px;background:var(--brand);
  }
  @media (max-width:1023px){
    .mobile-tab{display:block}
    body{padding-bottom:76px}
  }

  .list-plain li{position:relative;padding-left:18px;font-size:14px;color:var(--muted);line-height:1.9}
  .list-plain li::before{
    content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:999px;background:var(--brand);
  }

/* roulang page: category4 */
:root{
  --brand:#F4511E;
  --brand-dark:#C93B0C;
  --brand-soft:#FFF1EA;
  --accent:#12C8A0;
  --accent-dark:#0FA987;
  --gold:#FFC53D;
  --night:#101520;
  --night-2:#1A2130;
  --night-text:#EDF0F4;
  --night-sub:#A8B0BE;
  --paper:#F7F8FA;
  --card:#FFFFFF;
  --line:#E6E8EC;
  --ink:#14181F;
  --muted:#6B7280;
  --danger:#D93A3A;
  --danger-soft:#FDF0F0;
  --r-card:16px;
  --r-lg:20px;
  --r-btn:10px;
  --sh-1:0 2px 8px rgba(16,21,32,.06);
  --sh-card:0 10px 28px -14px rgba(16,21,32,.18);
  --sh-hover:0 18px 40px -18px rgba(244,81,30,.30);
  --pad-y:92px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",ui-sans-serif,system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--paper);
  font-feature-settings:"tnum";
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--brand-dark);text-decoration:none;transition:color .15s ease;}
a:hover{color:var(--brand);}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 32px;}}
.tnum{font-variant-numeric:tabular-nums;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:background .14s ease,color .14s ease,border-color .14s ease,transform .14s ease,box-shadow .14s ease;
  white-space:nowrap;
}
.btn:active{transform:scale(.98);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px -12px rgba(244,81,30,.75);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 14px 28px -14px rgba(244,81,30,.85);}
.btn-ghost{background:transparent;color:var(--brand-dark);border:1px solid rgba(244,81,30,.42);}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-dark);transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--night);}
.btn-light:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px);}
.btn-outline-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.35);}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.7);}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  color:#fff;
  background:transparent;
  transition:background .22s ease,color .22s ease,box-shadow .22s ease;
}
.site-header.is-scrolled{
  background:#fff;
  color:var(--ink);
  box-shadow:0 1px 0 var(--line),0 8px 24px -18px rgba(16,21,32,.45);
}
.header-inner{display:flex;align-items:center;height:68px;gap:24px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:inherit;font-size:18px;font-weight:700;letter-spacing:-.01em;}
.brand:hover{color:inherit;}
.brand-mark{width:26px;height:26px;color:var(--brand);flex:none;}
.brand-thin{font-weight:400;opacity:.86;}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:auto;font-size:15px;font-weight:500;}
.main-nav a{position:relative;padding:6px 0;color:inherit;opacity:.82;}
.main-nav a:hover{opacity:1;color:var(--brand);}
.main-nav a.is-active{opacity:1;color:inherit;}
.main-nav a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;background:var(--brand);
}
.header-actions{margin-left:26px;display:flex;align-items:center;}
@media (max-width:1023px){
  .main-nav{display:none;}
  .header-actions{margin-left:auto;}
}
@media (max-width:420px){
  .brand{font-size:16px;}
  .brand-mark{width:22px;height:22px;}
}

/* ---------- hero ---------- */
.hero{
  position:relative;
  background:
    radial-gradient(900px 460px at 82% -10%,rgba(244,81,30,.30),transparent 62%),
    radial-gradient(700px 420px at 6% 100%,rgba(18,200,160,.16),transparent 66%),
    var(--night);
  color:var(--night-text);
  padding:calc(68px + 56px) 0 64px;
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 78%);
}
.hero-inner{position:relative;z-index:2;display:grid;gap:44px;align-items:center;}
@media (min-width:1024px){.hero-inner{grid-template-columns:1.08fr .92fr;gap:56px;}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;font-weight:600;
  color:#fff;background:rgba(244,81,30,.18);
  border:1px solid rgba(244,81,30,.45);
  padding:6px 14px;border-radius:999px;
}
.hero h1{
  font-size:clamp(28px,4vw,48px);
  line-height:1.22;font-weight:700;letter-spacing:-.015em;
  margin:20px 0 18px;color:#fff;
}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-lead{font-size:17px;line-height:1.85;color:var(--night-sub);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-facts{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
  margin-top:40px;padding-top:26px;border-top:1px solid rgba(255,255,255,.1);
  max-width:560px;
}
.hero-facts .num{font-size:26px;font-weight:700;color:#fff;line-height:1.3;}
.hero-facts .lab{font-size:13px;color:var(--night-sub);line-height:1.6;}
.hero-figure{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid rgba(255,255,255,.12);
  background:var(--brand-soft);
  aspect-ratio:4/3;
  box-shadow:0 30px 60px -30px rgba(0,0,0,.75);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:22px 20px 16px;font-size:13px;color:#fff;
  background:linear-gradient(180deg,transparent,rgba(16,21,32,.88));
}
@media (max-width:767px){
  .hero{padding:calc(68px + 36px) 0 48px;}
  .hero-facts{grid-template-columns:1fr 1fr;gap:14px;}
  .hero-figure{aspect-ratio:16/10;}
}

/* ---------- section base ---------- */
.section{padding:var(--pad-y) 0;}
.section-paper{background:var(--paper);}
.section-white{background:#fff;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{
  font-size:clamp(24px,2.6vw,32px);line-height:1.32;font-weight:600;letter-spacing:-.01em;
  margin:14px 0 12px;
}
.section-head p{color:var(--muted);font-size:16px;line-height:1.8;}
.tag{
  display:inline-block;font-size:12px;letter-spacing:.06em;font-weight:600;
  color:var(--brand-dark);background:var(--brand-soft);
  padding:5px 12px;border-radius:999px;
}
.tag-dark{color:#fff;background:rgba(244,81,30,.9);}
@media (max-width:767px){:root{--pad-y:60px;} .section-head{margin-bottom:32px;}}

/* ---------- steps ---------- */
.steps-grid{display:grid;gap:20px;}
@media (min-width:768px){.steps-grid{grid-template-columns:1fr 1fr;}}
.step-card{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px 24px 24px;
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:rgba(244,81,30,.35);}
.step-card:hover h3{color:var(--brand-dark);}
.step-top{display:flex;align-items:center;gap:14px;margin-bottom:14px;}
.step-num{
  font-size:26px;font-weight:700;color:transparent;
  -webkit-text-stroke:1.4px var(--brand);line-height:1;
  font-variant-numeric:tabular-nums;
}
.step-icon{
  width:42px;height:42px;border-radius:12px;flex:none;
  display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand-dark);
}
.step-icon svg{width:22px;height:22px;}
.step-card h3{font-size:20px;font-weight:600;line-height:1.4;transition:color .2s ease;}
.step-card p{margin-top:8px;color:var(--muted);font-size:15px;line-height:1.8;}
.step-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  font-size:14px;font-weight:600;color:var(--brand-dark);
}
.step-link:hover{gap:10px;}

/* ---------- alternating guide ---------- */
.alt-row{display:grid;gap:32px;align-items:center;padding:34px 0;border-top:1px solid var(--line);}
.alt-row:first-child{border-top:0;padding-top:0;}
.alt-row:last-child{padding-bottom:0;}
@media (min-width:900px){
  .alt-row{grid-template-columns:1fr 1fr;gap:56px;}
  .alt-row.reverse .alt-media{order:2;}
}
.alt-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  aspect-ratio:16/10;background:var(--brand-soft);border:1px solid var(--line);
  box-shadow:var(--sh-card);
}
.alt-media img{width:100%;height:100%;object-fit:cover;}
.alt-media .badge-float{
  position:absolute;left:14px;top:14px;
  background:rgba(255,255,255,.94);color:var(--brand-dark);
  font-size:12px;font-weight:600;letter-spacing:.04em;
  padding:6px 12px;border-radius:999px;box-shadow:var(--sh-1);
}
.alt-copy h3{font-size:22px;font-weight:600;line-height:1.4;margin-bottom:12px;}
.alt-copy p{color:var(--muted);font-size:16px;line-height:1.85;}
.check-list{margin-top:18px;display:grid;gap:10px;}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:var(--ink);line-height:1.75;
}
.check-list .dot{
  width:20px;height:20px;border-radius:50%;flex:none;margin-top:4px;
  background:rgba(18,200,160,.14);color:var(--accent-dark);
  display:grid;place-items:center;
}
.check-list .dot svg{width:12px;height:12px;}
.alt-copy .btn{margin-top:22px;}

/* ---------- mistakes ---------- */
.mistake-grid{display:grid;gap:18px;}
@media (min-width:768px){.mistake-grid{grid-template-columns:1fr 1fr;}}
.mistake-card{
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--danger);
  border-radius:14px;padding:22px 22px 20px;
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.mistake-card:hover{transform:translateY(-2px);box-shadow:0 16px 34px -20px rgba(217,58,58,.45);}
.mistake-card .m-head{display:flex;align-items:center;gap:10px;margin-bottom:8px;}
.mistake-card .m-tag{
  font-size:11px;font-weight:700;letter-spacing:.06em;color:var(--danger);
  background:var(--danger-soft);padding:3px 10px;border-radius:999px;
}
.mistake-card h3{font-size:17px;font-weight:600;line-height:1.5;}
.mistake-card p{color:var(--muted);font-size:15px;line-height:1.8;margin-top:8px;}
.mistake-card .fix{
  margin-top:12px;padding-top:12px;border-top:1px dashed var(--line);
  font-size:14px;color:var(--accent-dark);font-weight:600;
}

/* ---------- faq ---------- */
.faq-grid{display:grid;gap:14px;}
@media (min-width:900px){.faq-grid{grid-template-columns:1fr 1fr;gap:16px;align-items:start;}}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:0 20px;box-shadow:var(--sh-1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(244,81,30,.35);}
.faq-item[open]{border-color:rgba(244,81,30,.45);box-shadow:var(--sh-card);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;font-size:15.5px;font-weight:600;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:none;width:24px;height:24px;border-radius:50%;
  display:grid;place-items:center;font-size:16px;font-weight:600;
  color:var(--brand-dark);background:var(--brand-soft);
  transition:transform .2s ease,background .2s ease;
}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg);background:var(--brand);color:#fff;}
.faq-body{
  padding:0 0 18px;color:var(--muted);font-size:15px;line-height:1.85;
  animation:fadeIn .2s ease-out;
}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}

/* ---------- help / contact cards ---------- */
.help-grid{display:grid;gap:20px;}
@media (min-width:768px){.help-grid{grid-template-columns:repeat(3,1fr);}}
.help-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.help-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:rgba(244,81,30,.32);}
.help-card .h-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand-dark);margin-bottom:14px;
}
.help-card .h-icon svg{width:22px;height:22px;}
.help-card h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.help-card p{color:var(--muted);font-size:15px;line-height:1.8;}
.help-card .h-link{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;font-weight:600;color:var(--brand-dark);}
.help-card .h-link:hover{gap:10px;}

/* ---------- cta ---------- */
.cta-band{padding:0 0 var(--pad-y);background:var(--paper);}
.cta-card{
  position:relative;overflow:hidden;
  background:
    radial-gradient(700px 360px at 88% 0%,rgba(244,81,30,.34),transparent 62%),
    var(--night);
  border-radius:24px;color:#fff;
  padding:52px 44px;
  display:grid;gap:28px;align-items:center;
  border:1px solid rgba(255,255,255,.08);
}
@media (min-width:900px){.cta-card{grid-template-columns:1.25fr .75fr;padding:56px 52px;}}
.cta-card h2{font-size:clamp(22px,2.6vw,30px);font-weight:600;line-height:1.35;color:#fff;}
.cta-card p{color:var(--night-sub);font-size:16px;line-height:1.85;margin-top:12px;max-width:520px;}
.cta-card .btn{margin-top:26px;}
.cta-figure{
  position:relative;border-radius:var(--r-lg);overflow:hidden;aspect-ratio:16/11;
  border:1px solid rgba(255,255,255,.12);
}
.cta-figure img{width:100%;height:100%;object-fit:cover;opacity:.92;}
@media (max-width:767px){
  .cta-card{padding:32px 22px;border-radius:20px;}
}

/* ---------- footer ---------- */
.site-footer{background:var(--night);color:var(--night-sub);padding:64px 0 26px;font-size:14px;}
.footer-grid{display:grid;gap:34px;}
@media (min-width:768px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:14px;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin:0 0 14px;}
.footer-col a{display:block;color:var(--night-sub);font-size:14px;padding:5px 0;}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-col p{line-height:1.85;color:var(--night-sub);}
.footer-contact li{display:flex;gap:10px;line-height:1.9;color:var(--night-sub);}
.footer-contact b{color:#fff;font-weight:600;flex:none;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:#8B93A1;
}

/* ---------- mobile tab ---------- */
.mobile-tab{display:none;}
@media (max-width:1023px){
  body{padding-bottom:76px;}
  .mobile-tab{
    position:fixed;left:0;right:0;bottom:0;z-index:90;
    display:grid;grid-template-columns:repeat(5,1fr);
    height:calc(60px + env(safe-area-inset-bottom));
    padding-bottom:env(safe-area-inset-bottom);
    background:#fff;border-top:1px solid var(--line);
    box-shadow:0 -6px 20px -14px rgba(16,21,32,.4);
  }
  .mobile-tab a{
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    font-size:11px;color:var(--muted);position:relative;padding-top:2px;
  }
  .mobile-tab a svg{width:22px;height:22px;}
  .mobile-tab a.is-active{color:var(--brand);}
  .mobile-tab a.is-active::before{
    content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
    width:26px;height:2px;border-radius:2px;background:var(--brand);
  }
}

/* roulang page: category5 */
:root{
  --brand:#F4511E;
  --brand-dark:#C93B0C;
  --brand-soft:#FFF1EA;
  --accent:#12C8A0;
  --accent-deep:#0FA987;
  --gold:#FFC53D;
  --night:#101520;
  --night-2:#1A2130;
  --night-text:#EDF0F4;
  --night-sub:#A8B0BE;
  --paper:#F7F8FA;
  --card:#FFFFFF;
  --line:#E6E8EC;
  --ink:#14181F;
  --muted:#6B7280;
  --r-card:16px;
  --r-lg:20px;
  --r-btn:10px;
  --shadow-1:0 2px 8px rgba(16,21,32,.06);
  --shadow-2:0 10px 28px -14px rgba(16,21,32,.18);
  --shadow-hover:0 18px 40px -18px rgba(244,81,30,.30);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-dark);text-decoration:none;transition:color .14s ease;}
a:hover{color:var(--brand);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  transition:background .14s ease,color .14s ease,border-color .14s ease,transform .14s ease,box-shadow .14s ease;
}
.btn:active{transform:scale(.98);}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(244,81,30,.9);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 18px 34px -16px rgba(244,81,30,.7);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-dark);transform:translateY(-1px);}
.btn-onNight{background:transparent;color:var(--night-text);border-color:rgba(255,255,255,.22);}
.btn-onNight:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.4);}
.btn-block{width:100%;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .18s ease,border-color .18s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px -15px rgba(16,21,32,.55);}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:68px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink);
  flex-shrink:0;
}
.brand:hover{color:var(--ink);}
.brand-mark{width:26px;height:26px;color:var(--brand);flex-shrink:0;}
.brand-text{font-size:18px;font-weight:700;letter-spacing:-.01em;line-height:1;}
.brand-thin{font-weight:400;color:var(--muted);}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  flex:1;
  justify-content:center;
}
.main-nav a{
  position:relative;
  display:inline-block;
  padding:8px 10px;
  font-size:15px;
  font-weight:500;
  color:#374151;
  border-radius:8px;
  transition:color .14s ease,background .14s ease;
}
.main-nav a:hover{color:var(--brand-dark);background:var(--brand-soft);}
.main-nav a.is-active{color:var(--brand-dark);font-weight:600;}
.main-nav a.is-active::after{
  content:"";
  position:absolute;
  left:10px;right:10px;bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}
.main-nav a:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
@media (max-width:1023px){
  .main-nav{display:none;}
  .header-actions{margin-left:auto;}
}
@media (max-width:520px){
  .header-actions .btn{height:36px;padding:0 14px;font-size:13px;}
  .brand-text{font-size:16px;}
}

/* ---------- Hero ---------- */
.page-hero{padding:28px 0 0;}
.hero-frame{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  min-height:470px;
  display:flex;
  align-items:flex-end;
  padding:0 0 48px 48px;
  background:var(--brand-soft);
  box-shadow:var(--shadow-2);
}
.hero-frame img.hero-bg{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.hero-frame::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(16,21,32,.90) 0%,rgba(16,21,32,.66) 46%,rgba(16,21,32,.22) 100%);
}
.hero-card{
  position:relative;
  z-index:2;
  background:#fff;
  border-radius:var(--r-card);
  padding:32px 36px;
  max-width:640px;
  box-shadow:0 30px 60px -34px rgba(0,0,0,.7);
}
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:16px;
}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--brand-dark);}
.crumbs span{color:#C0C5CE;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.06em;
  font-weight:600;
  color:var(--brand-dark);
  background:var(--brand-soft);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:16px;
}
.hero-card h1{
  font-size:clamp(28px,4vw,44px);
  font-weight:700;
  line-height:1.22;
  letter-spacing:-.01em;
  color:var(--ink);
}
.hero-card .hero-sub{
  margin-top:14px;
  font-size:16px;
  line-height:1.8;
  color:#4B5563;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;
  margin-top:28px;
  padding-top:22px;
  border-top:1px solid var(--line);
}
.hero-stats b{
  display:block;
  font-size:20px;
  font-weight:700;
  color:var(--brand-dark);
  line-height:1.2;
}
.hero-stats span{display:block;font-size:13px;color:var(--muted);margin-top:4px;}
@media (max-width:1023px){
  .hero-frame{padding:200px 20px 20px;min-height:0;align-items:flex-end;}
  .hero-card{max-width:none;padding:26px 24px;}
}
@media (max-width:520px){
  .hero-frame{padding-top:170px;border-radius:var(--r-card);}
  .hero-stats{grid-template-columns:1fr;gap:12px;}
  .hero-stats b{font-size:18px;}
}

/* ---------- 通用板块 ---------- */
.section{padding:64px 0;}
@media (min-width:1024px){
  .section{padding:92px 0;}
}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{
  font-size:clamp(24px,3vw,32px);
  font-weight:600;
  line-height:1.3;
  letter-spacing:-.01em;
  color:var(--ink);
}
.section-head p{margin-top:12px;font-size:16px;color:var(--muted);line-height:1.8;}
.sec-tag{
  display:inline-block;
  font-size:12px;
  letter-spacing:.06em;
  font-weight:600;
  color:var(--brand-dark);
  margin-bottom:12px;
}

/* ---------- 自助入口矩阵 ---------- */
.entry-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.entry-card{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:24px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.entry-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
  border-color:#FBD3C3;
}
.entry-icon{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:12px;
  background:var(--brand-soft);
  color:var(--brand-dark);
}
.entry-card h3{font-size:17px;font-weight:600;line-height:1.45;}
.entry-card p{font-size:14px;color:var(--muted);line-height:1.7;}
.entry-link{
  margin-top:auto;
  font-size:14px;
  font-weight:600;
  color:var(--brand-dark);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.entry-link:hover{gap:10px;}
@media (max-width:1023px){
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:520px){
  .entry-grid{grid-template-columns:1fr;}
}

/* ---------- 条款小节 ---------- */
.terms-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.term-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--shadow-1);
}
.term-no{
  display:inline-grid;
  place-items:center;
  width:38px;height:38px;
  border-radius:10px;
  background:var(--night);
  color:#fff;
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  margin-bottom:16px;
}
.term-card h3{font-size:20px;font-weight:600;line-height:1.4;margin-bottom:10px;}
.term-card > p{font-size:15px;color:#4B5563;line-height:1.8;margin-bottom:14px;}
.term-list{counter-reset:t;}
.term-list li{
  position:relative;
  padding-left:26px;
  font-size:15px;
  line-height:1.8;
  color:#374151;
  margin-bottom:10px;
}
.term-list li:last-child{margin-bottom:0;}
.term-list li::before{
  counter-increment:t;
  content:counter(t);
  position:absolute;
  left:0;top:3px;
  width:18px;height:18px;
  display:grid;place-items:center;
  border-radius:50%;
  background:var(--brand-soft);
  color:var(--brand-dark);
  font-size:11px;
  font-weight:700;
  line-height:1;
}
@media (max-width:1023px){
  .terms-grid{grid-template-columns:1fr;}
}

/* ---------- 深色风险提示 ---------- */
.night-band{
  background:var(--night);
  color:var(--night-text);
  padding:64px 0;
}
@media (min-width:1024px){.night-band{padding:92px 0;}}
.night-band .section-head h2{color:var(--night-text);}
.night-band .section-head p{color:var(--night-sub);}
.night-band .sec-tag{color:var(--gold);}
.risk-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}
.risk-item{
  display:flex;
  gap:14px;
  padding:22px;
  border-radius:var(--r-card);
  background:var(--night-2);
  border:1px solid rgba(255,255,255,.08);
  transition:border-color .18s ease,transform .18s ease;
}
.risk-item:hover{border-color:rgba(244,81,30,.5);transform:translateY(-2px);}
.risk-mark{
  flex-shrink:0;
  width:28px;height:28px;
  border-radius:8px;
  display:grid;place-items:center;
  background:rgba(244,81,30,.16);
  color:#FF8B5E;
}
.risk-item h3{font-size:16px;font-weight:600;color:var(--night-text);line-height:1.5;margin-bottom:6px;}
.risk-item p{font-size:14px;line-height:1.75;color:var(--night-sub);}
@media (max-width:767px){
  .risk-grid{grid-template-columns:1fr;}
}

/* ---------- FAQ ---------- */
.faq-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
  align-items:start;
}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item.is-open{border-color:#FBD3C3;box-shadow:var(--shadow-2);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 22px;
  background:none;
  border:0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  line-height:1.6;
  cursor:pointer;
}
.faq-q:hover{color:var(--brand-dark);}
.faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:-2px;}
.faq-icon{
  position:relative;
  flex-shrink:0;
  width:20px;height:20px;
  border-radius:50%;
  background:var(--brand-soft);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:var(--brand-dark);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{width:10px;height:2px;}
.faq-icon::after{width:2px;height:10px;}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease;}
.faq-a-inner{padding:0 22px 20px;font-size:15px;line-height:1.85;color:#4B5563;}
@media (max-width:767px){
  .faq-grid{grid-template-columns:1fr;}
}

/* ---------- 联系表单 ---------- */
.form-wrap{
  display:grid;
  grid-template-columns:1fr 1.15fr;
  gap:48px;
  align-items:start;
}
.form-side h2{
  font-size:clamp(24px,3vw,32px);
  font-weight:600;
  line-height:1.3;
  color:var(--night-text);
}
.form-side p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--night-sub);}
.form-points{margin-top:26px;display:grid;gap:14px;}
.form-points li{
  display:flex;
  gap:10px;
  font-size:14px;
  color:var(--night-sub);
  line-height:1.7;
}
.form-points li svg{flex-shrink:0;margin-top:4px;color:var(--accent);}
.form-card{
  background:#fff;
  border-radius:var(--r-lg);
  padding:32px;
  box-shadow:0 30px 60px -34px rgba(0,0,0,.8);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{margin-bottom:18px;}
.field label{
  display:block;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:8px;
}
.field input,.field select,.field textarea{
  width:100%;
  height:44px;
  padding:0 14px;
  font-size:15px;
  font-family:inherit;
  color:var(--ink);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  transition:border-color .14s ease,box-shadow .14s ease;
  appearance:none;
}
.field textarea{height:auto;min-height:132px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field select{
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%236B7280' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
  padding-right:38px;
}
.field input::placeholder,.field textarea::placeholder{color:#9CA3AF;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(244,81,30,.15);
}
.field-error{
  display:none;
  margin-top:6px;
  font-size:13px;
  color:#D93025;
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:#D93025;}
.field.has-error .field-error{display:block;}
.form-note{font-size:13px;color:var(--muted);line-height:1.7;margin-top:4px;margin-bottom:18px;}
.form-success{
  display:none;
  align-items:flex-start;
  gap:10px;
  margin-bottom:18px;
  padding:14px 16px;
  border-radius:var(--r-btn);
  background:#E9FBF6;
  border:1px solid #B4EFE1;
  color:#0B7A61;
  font-size:14px;
  line-height:1.7;
}
.form-success.is-visible{display:flex;}
@media (max-width:1023px){
  .form-wrap{grid-template-columns:1fr;gap:32px;}
}
@media (max-width:520px){
  .form-card{padding:22px;}
  .form-row{grid-template-columns:1fr;}
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--brand-soft);
  border-top:1px solid #FBE0D4;
  border-bottom:1px solid #FBE0D4;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  padding:48px 0;
}
.cta-text h2{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:600;
  line-height:1.35;
  color:var(--ink);
}
.cta-text p{margin-top:10px;font-size:15px;color:#7A4A35;line-height:1.8;max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex-shrink:0;}
@media (max-width:1023px){
  .cta-inner{flex-direction:column;align-items:flex-start;padding:44px 0;}
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--night);
  color:var(--night-sub);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--night-text);
  margin-bottom:16px;
}
.footer-brand .brand-mark{color:var(--brand);}
.footer-brand .brand-text{font-size:18px;color:var(--night-text);}
.footer-brand .brand-thin{color:var(--night-sub);}
.footer-col p{font-size:14px;line-height:1.85;color:var(--night-sub);max-width:360px;}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--night-text);
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col a{
  display:block;
  font-size:14px;
  color:var(--night-sub);
  padding:5px 0;
  transition:color .14s ease,transform .14s ease;
}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-col a:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.footer-contact li{
  font-size:14px;
  line-height:1.8;
  color:var(--night-sub);
  padding:5px 0;
}
.footer-contact b{color:var(--night-text);font-weight:600;margin-right:8px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:space-between;
  font-size:13px;
  color:#7D8797;
}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:640px){
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding-top:48px;}
}

/* ---------- 移动底部 Tab ---------- */
.mobile-tab{
  display:none;
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:80;
  background:#fff;
  border-top:1px solid var(--line);
  box-shadow:0 -6px 20px -16px rgba(16,21,32,.6);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tab-inner{
  display:flex;
  height:60px;
}
.mobile-tab a{
  position:relative;
  flex:1;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:3px;
  font-size:11px;
  color:#8A919E;
  transition:color .14s ease;
}
.mobile-tab a svg{width:22px;height:22px;}
.mobile-tab a.is-active{color:var(--brand);font-weight:600;}
.mobile-tab a.is-active::before{
  content:"";
  position:absolute;
  top:0;left:50%;
  transform:translateX(-50%);
  width:26px;height:2px;
  border-radius:2px;
  background:var(--brand);
}
.mobile-tab a:focus-visible{outline:2px solid var(--brand);outline-offset:-2px;}
@media (max-width:1023px){
  .mobile-tab{display:block;}
  body{padding-bottom:76px;}
}