/* roulang page: index */
:root{
  --brand:#FF6A3D;
  --brand-dark:#E0482A;
  --brand-soft:#FFF0EA;
  --violet:#7B5CFF;
  --violet-soft:#F1EDFF;
  --mint:#16C79A;
  --mint-soft:#E7FBF4;
  --warn:#FF8A3D;
  --danger:#E0482A;
  --grad:linear-gradient(118deg,#FF6A3D 0%,#7B5CFF 100%);
  --bg:#FFF8F3;
  --bg-alt:#F7F5FF;
  --card:#FFFFFF;
  --border:#F1E9E4;
  --line:#EDE7F6;
  --t1:#16121F;
  --t2:#5A5468;
  --t3:#8E8998;
  --inv:#FFFFFF;
  --r-card:22px;
  --r-lg:28px;
  --r-sm:14px;
  --r-img:16px;
  --r-pill:999px;
  --sh-1:0 6px 20px rgba(22,18,31,.05);
  --sh-2:0 16px 36px rgba(255,106,61,.16);
  --sh-3:0 10px 24px rgba(255,106,61,.28);
  --sec:88px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--t1);
  background:var(--bg);
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(255,106,61,.35);outline-offset:2px;border-radius:10px}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.ico{width:22px;height:22px;display:block}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--border);
  box-shadow:0 2px 12px rgba(22,18,31,.04);
  transition:box-shadow .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  backdrop-filter:blur(7px);
  -webkit-backdrop-filter:blur(7px);
  box-shadow:0 4px 16px rgba(22,18,31,.08);
}
.header-inner{display:flex;align-items:center;gap:20px;height:70px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad);
  display:grid;place-items:center;color:#fff;flex:0 0 auto;
}
.logo-mark .ico{width:18px;height:18px}
.logo-text{font-size:18px;font-weight:700;color:var(--t1);white-space:nowrap}
.nav{display:flex;align-items:center;gap:2px;margin-left:10px}
.nav-link{
  position:relative;padding:9px 13px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--t2);
  transition:color .18s ease,background .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease;
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 16px;
  border-radius:var(--r-pill);background:var(--violet-soft);
  border:1px solid transparent;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(255,106,61,.15)}
.search .ico{width:17px;height:17px;color:var(--t3)}
.search input{border:0;background:transparent;outline:none;width:140px;font-size:14px}
.search input::placeholder{color:var(--t3)}
.menu-btn{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--border);align-items:center;justify-content:center;color:var(--t2);
}
.menu-btn:hover{border-color:var(--brand);color:var(--brand)}
.mobile-panel{display:none;background:#fff;border-top:1px solid var(--line);padding:10px 20px 20px}
.mobile-panel.is-open{display:block}
.mobile-panel a{
  display:block;padding:13px 4px;font-size:15px;color:var(--t2);
  border-bottom:1px solid var(--line);transition:color .18s ease,padding-left .18s ease;
}
.mobile-panel a:hover{color:var(--brand);padding-left:8px}
.mobile-panel .mp-search{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 16px;margin:14px 0;
  border-radius:var(--r-pill);background:var(--violet-soft);
}
.mobile-panel .mp-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn .ico{width:17px;height:17px}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--sh-3)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(255,106,61,.34)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-3)}
.btn-ghost{background:#fff;color:var(--brand);border:1px solid rgba(255,106,61,.42)}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand)}
.btn-white{background:#fff;color:var(--brand-dark);box-shadow:0 10px 24px rgba(22,18,31,.14)}
.btn-white:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(22,18,31,.2)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}

/* ---------- 通用板块 ---------- */
.sec{padding:var(--sec) 0}
.sec-alt{background:var(--bg-alt)}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:40px;flex-wrap:wrap;
}
.sec-title{font-size:clamp(24px,2.6vw,32px);line-height:1.25}
.sec-sub{margin-top:10px;color:var(--t2);font-size:15px;max-width:660px}
.more-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);
  transition:gap .2s ease;
}
.more-link:hover{gap:10px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;
  border-radius:var(--r-pill);background:var(--brand-soft);color:var(--brand-dark);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.eyebrow.is-violet{background:var(--violet-soft);color:var(--violet)}
.eyebrow.is-mint{background:var(--mint-soft);color:#0F9C79}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:52px 0 72px;background:var(--bg)}
.hero::before,.hero::after{
  content:"";position:absolute;width:520px;height:520px;border-radius:50%;
  filter:blur(90px);opacity:.16;pointer-events:none;
}
.hero::before{background:#FF6A3D;top:-190px;left:-170px}
.hero::after{background:#7B5CFF;bottom:-230px;right:-150px}
.hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
}
.hero-copy .eyebrow{margin-bottom:20px}
.hero h1{
  font-size:clamp(30px,4.6vw,52px);line-height:1.15;font-weight:800;margin-bottom:18px;
}
.hero h1 em{
  font-style:normal;
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{font-size:17px;color:var(--t2);max-width:520px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 13px;
  border-radius:var(--r-pill);background:#fff;border:1px solid var(--border);
  font-size:12.5px;color:var(--t2);
}
.chip .ico{width:14px;height:14px;color:var(--brand)}
.hero-visual{position:relative}
.hero-card{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  background:#fff;box-shadow:0 24px 60px rgba(22,18,31,.14);
  border:1px solid rgba(255,255,255,.7);
}
.hero-card img{width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(22,18,31,0) 42%,rgba(22,18,31,.55) 100%);
  pointer-events:none;
}
.hero-badge{
  position:absolute;top:18px;left:18px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 14px;
  border-radius:var(--r-pill);background:rgba(255,255,255,.92);
  font-size:12.5px;font-weight:600;color:var(--brand-dark);
  box-shadow:0 8px 20px rgba(22,18,31,.14);
}
.hero-caption{
  position:absolute;left:22px;right:22px;bottom:20px;z-index:2;color:#fff;
}
.hero-caption strong{display:block;font-size:17px;font-weight:600;margin-bottom:4px}
.hero-caption span{font-size:13px;opacity:.86}
.hero-float{
  position:absolute;right:-12px;bottom:-20px;z-index:3;
  background:var(--mint-soft);border:1px solid rgba(22,199,154,.35);
  border-radius:20px;padding:14px 20px;text-align:center;
  box-shadow:0 16px 34px rgba(22,199,154,.2);
}
.hero-float .num{display:block;font-size:26px;font-weight:800;color:#0F9C79;line-height:1.2}
.hero-float span{font-size:12px;color:var(--t2)}

/* ---------- 数据徽章条 ---------- */
.stats-band{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:36px 0}
.stat{text-align:left;padding-left:18px;border-left:3px solid transparent;border-image:var(--grad) 1}
.stat:nth-child(1){border-image:none;border-left-color:rgba(255,106,61,.35)}
.stat:nth-child(2){border-image:none;border-left-color:rgba(123,92,255,.35)}
.stat:nth-child(3){border-image:none;border-left-color:rgba(22,199,154,.4)}
.stat:nth-child(4){border-image:none;border-left-color:rgba(255,138,61,.4)}
.stat .num{display:block;font-size:30px;font-weight:800;line-height:1.15;color:var(--t1)}
.stat .num em{font-style:normal;font-size:17px;font-weight:700;color:var(--brand);margin-left:2px}
.stat p{margin-top:6px;font-size:13px;color:var(--t2)}

/* ---------- 玩法步骤 ---------- */
.steps-wrap{display:grid;grid-template-columns:300px 1fr;gap:44px;align-items:start}
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.steps::before{
  content:"";position:absolute;left:36px;right:36px;top:44px;height:2px;
  background:linear-gradient(90deg,rgba(255,106,61,.28),rgba(123,92,255,.28));
}
.step{
  position:relative;z-index:1;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-card);padding:24px 20px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,106,61,.35)}
.step-num{
  width:36px;height:36px;border-radius:12px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:15px;font-weight:700;margin-bottom:16px;
}
.step h3{font-size:16px;font-weight:600;margin-bottom:8px}
.step p{font-size:14px;line-height:1.7;color:var(--t2)}

/* ---------- 奖励预览 ---------- */
.reward-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:24px;align-items:stretch}
.reward-main{
  position:relative;border-radius:var(--r-lg);overflow:hidden;background:#fff;
  box-shadow:var(--sh-1);border:1px solid var(--border);min-height:420px;
}
.reward-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.reward-mask{
  position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;
  padding:28px;color:#fff;
  background:linear-gradient(180deg,rgba(22,18,31,.08) 24%,rgba(22,18,31,.78) 100%);
}
.reward-mask h3{font-size:22px;line-height:1.35;margin:14px 0 10px}
.reward-mask p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.86);max-width:420px}
.tag-light{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.92);color:var(--brand-dark);font-size:12px;font-weight:600;
  width:fit-content;
}
.reward-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.reward-badges span{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border-radius:var(--r-pill);background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.35);font-size:12.5px;
}
.reward-list{display:flex;flex-direction:column;gap:16px}
.reward-item{
  display:flex;align-items:flex-start;gap:16px;background:#fff;border:1px solid var(--border);
  border-radius:20px;padding:20px 22px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.reward-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,106,61,.35)}
.ri-icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;flex:0 0 auto;
  background:var(--violet-soft);color:var(--violet);
}
.ri-icon.is-orange{background:var(--brand-soft);color:var(--brand)}
.ri-icon.is-mint{background:var(--mint-soft);color:#0F9C79}
.reward-item h4{font-size:16px;font-weight:600;margin-bottom:4px}
.reward-item p{font-size:14px;line-height:1.7;color:var(--t2)}

/* ---------- 任务进度 ---------- */
.progress-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:40px;box-shadow:var(--sh-1);
}
.progress-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:32px}
.progress-head h3{font-size:20px;font-weight:700}
.progress-head p{font-size:14px;color:var(--t2);margin-top:6px}
.progress-value{font-size:26px;font-weight:800;color:var(--brand)}
.tl-track{
  position:relative;height:8px;border-radius:var(--r-pill);
  background:var(--violet-soft);
}
.tl-fill{
  display:block;height:100%;width:62%;border-radius:var(--r-pill);background:var(--grad);
  transition:width .4s ease;
}
.tl-dot{
  position:absolute;top:50%;width:12px;height:12px;border-radius:50%;
  transform:translate(-50%,-50%);background:#fff;border:2px solid #D9D2EE;
}
.tl-dot.is-done{background:var(--brand);border-color:var(--brand)}
.tl-dot.is-current{
  background:#fff;border:3px solid var(--brand);
  box-shadow:0 0 0 5px rgba(255,106,61,.16);
  animation:breathe 1.8s ease-in-out infinite;
}
@keyframes breathe{
  0%,100%{box-shadow:0 0 0 5px rgba(255,106,61,.16)}
  50%{box-shadow:0 0 0 10px rgba(255,106,61,.06)}
}
.tl-labels{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:22px}
.tl-label{text-align:center}
.tl-label b{display:block;font-size:14px;font-weight:600;margin-bottom:2px}
.tl-label span{font-size:12.5px;color:var(--t3)}
.progress-cta{margin-top:32px;display:flex;justify-content:center}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,106,61,.35)}
.news-cover{display:block;overflow:hidden}
.news-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease}
.news-card:hover .news-cover img{transform:scale(1.04)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.news-tag{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:var(--r-pill);
  background:var(--violet-soft);color:var(--violet);font-size:12px;font-weight:600;
  width:fit-content;margin-bottom:12px;
}
.news-body h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:10px}
.news-body h3 a{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s ease;
}
.news-body h3 a:hover{color:var(--brand)}
.news-body p{
  font-size:14px;line-height:1.7;color:var(--t2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:16px;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;gap:10px;
  font-size:12.5px;color:var(--t3);padding-top:14px;border-top:1px solid var(--line);
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;align-items:center}
.tag-row .tag-label{font-size:13px;color:var(--t3);margin-right:4px}
.tag-row a{
  display:inline-flex;align-items:center;height:30px;padding:0 15px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--border);font-size:13px;color:var(--t2);
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.tag-row a:hover{color:var(--brand-dark);border-color:rgba(255,106,61,.45);background:var(--brand-soft)}
.empty-state{
  grid-column:1/-1;background:#fff;border:1px dashed var(--border);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;
}
.empty-state .ico{width:36px;height:36px;color:var(--t3);margin:0 auto 14px}
.empty-state b{display:block;font-size:17px;margin-bottom:6px}
.empty-state p{font-size:14px;color:var(--t2);margin-bottom:18px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-img);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:rgba(255,106,61,.35);box-shadow:var(--sh-1)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:19px 24px;font-size:17px;font-weight:600;cursor:pointer;list-style:none;
}
.faq-q::-webkit-details-marker{display:none}
.faq-q::after{
  content:"+";font-size:24px;line-height:1;font-weight:400;color:var(--brand);
  flex:0 0 auto;transition:transform .22s ease;
}
.faq-item[open] .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--t2)}

/* ---------- CTA 横幅 ---------- */
.cta-band{padding:0 0 var(--sec)}
.cta-inner{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:var(--grad);padding:52px 48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:0 22px 50px rgba(123,92,255,.24);
}
.cta-inner::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.14);
}
.cta-copy{position:relative;z-index:1;max-width:640px}
.cta-copy h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3;margin-bottom:10px}
.cta-copy p{font-size:15px;color:rgba(255,255,255,.88)}
.cta-inner .btn{position:relative;z-index:1}

/* ---------- 页脚 ---------- */
.site-footer{background:#171320;color:#fff;position:relative}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad);
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding:60px 0 40px;
}
.footer-brand .logo-text{color:#fff}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:#A9A2BA;max-width:320px}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:18px;color:#fff}
.footer-col li{margin-bottom:11px}
.footer-col a{
  font-size:14px;color:#A9A2BA;display:inline-block;
  transition:color .18s ease,transform .18s ease;
}
.footer-col a:hover{color:var(--brand);transform:translateX(2px)}
.footer-col p{font-size:14px;color:#A9A2BA;line-height:1.85}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 28px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:12.5px;color:#8A829C;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:960px}
  :root{--sec:72px}
  .steps-wrap{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:991px){
  :root{--sec:64px}
  .nav{display:none}
  .search{display:none}
  .menu-btn{display:inline-flex}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-lead{max-width:none}
  .hero-float{right:8px;bottom:-14px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .steps::before{display:none}
  .reward-grid{grid-template-columns:1fr}
  .reward-main{min-height:340px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px 24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-inner{padding:40px 32px}
}
@media (max-width:767px){
  :root{--sec:48px}
  body{font-size:15.5px}
  .container{padding:0 16px}
  .header-inner{height:64px;gap:12px}
  .logo-text{font-size:17px}
  .hero{padding:36px 0 52px}
  .hero h1{font-size:clamp(28px,7.4vw,34px)}
  .hero-actions{gap:12px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-float{position:static;margin-top:16px;display:inline-block}
  .stats-grid{grid-template-columns:1fr 1fr;gap:22px 18px;padding:28px 0}
  .stat .num{font-size:25px}
  .steps{grid-template-columns:1fr}
  .reward-list{gap:14px}
  .progress-card{padding:26px 20px}
  .tl-labels{grid-template-columns:1fr 1fr;gap:16px}
  .news-grid{grid-template-columns:1fr}
  .faq-q{font-size:16px;padding:16px 18px}
  .faq-a{padding:0 18px 18px}
  .cta-inner{padding:32px 22px;flex-direction:column;align-items:flex-start}
  .cta-inner .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:390px){
  .logo-text{font-size:16px}
  .stats-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
}

/* roulang page: article */
:root{
  --brand:#FF6A3D;
  --brand-dark:#E0482A;
  --brand-soft:#FFF0EA;
  --violet:#7B5CFF;
  --violet-soft:#F1EDFF;
  --mint:#16C79A;
  --mint-soft:#E7FBF4;
  --warn:#FF8A3D;
  --danger:#E0482A;
  --grad:linear-gradient(118deg,#FF6A3D 0%,#7B5CFF 100%);
  --bg:#FFF8F3;
  --bg-alt:#F7F5FF;
  --card:#FFFFFF;
  --border:#F1E9E4;
  --divider:#EDE7F6;
  --text:#16121F;
  --text-2:#5A5468;
  --text-3:#8E8998;
  --white:#FFFFFF;
  --r-card:22px;
  --r-lg:28px;
  --r-sm:14px;
  --shadow-1:0 6px 20px rgba(22,18,31,.05);
  --shadow-2:0 16px 36px rgba(255,106,61,.16);
  --shadow-cta:0 10px 24px rgba(255,106,61,.28);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
input,select,textarea{font-family:inherit;font-size:16px}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
.svg-sprite{position:absolute;width:0;height:0;overflow:hidden}
.ico{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.num{font-variant-numeric:tabular-nums}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--card);
  border-bottom:1px solid var(--border);
  box-shadow:0 2px 12px rgba(22,18,31,.04);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
  box-shadow:0 4px 16px rgba(22,18,31,.07);
}
.header-inner{display:flex;align-items:center;gap:24px;height:70px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;color:#fff;
  box-shadow:0 6px 14px rgba(255,106,61,.28);
}
.logo-mark .ico{width:17px;height:17px;stroke-width:2}
.logo-text{font-size:18px;font-weight:700;letter-spacing:0;color:var(--text)}
.nav{display:flex;align-items:center;gap:6px;margin-left:6px}
.nav-link{
  position:relative;padding:8px 12px;font-size:15px;font-weight:500;color:var(--text-2);
  border-radius:10px;transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left center;transition:transform .18s ease;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 16px;
  background:var(--violet-soft);border:1px solid transparent;border-radius:999px;
  color:var(--text-3);transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search:focus-within{background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,106,61,.15)}
.search .ico{width:17px;height:17px}
.search input{
  width:150px;border:0;background:transparent;outline:none;color:var(--text);font-size:14px;
}
.search input::placeholder{color:var(--text-3)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;cursor:pointer;font-weight:600;text-align:center;
  border-radius:999px;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--shadow-cta)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(255,106,61,.32)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(255,106,61,.26)}
.btn-ghost{background:#fff;color:var(--brand);border-color:rgba(255,106,61,.45)}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn:focus-visible,.nav-link:focus-visible,.search input:focus-visible,a:focus-visible{
  outline:2px solid var(--violet);outline-offset:2px;
}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--border);border-radius:12px;color:var(--text-2);cursor:pointer;
}
.nav-toggle .ico{width:20px;height:20px}
.mobile-panel{
  display:none;border-top:1px solid var(--divider);background:#fff;padding:14px 0 20px;
  border-radius:0 0 var(--r-card) var(--r-card);
}
.mobile-panel.is-open{display:block;animation:fadeUp .25s ease both}
.mobile-panel .container{display:flex;flex-direction:column;gap:6px}
.mobile-panel .nav-link{padding:12px 12px;font-size:16px}
.mobile-panel .search{margin:10px 0 4px}
.mobile-panel .search input{width:100%}
.mobile-panel .btn{width:100%}
@keyframes fadeUp{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

/* ============ breadcrumb ============ */
.crumb-bar{padding:24px 0 0}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text-3)}
.breadcrumb a{color:var(--text-3);transition:color .2s ease}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C9C4D4}
.breadcrumb .current{color:var(--text-3);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ article layout ============ */
.article-wrap{padding:20px 0 88px}
.article-layout{
  display:grid;grid-template-columns:minmax(0,780px) 220px;gap:48px;
  justify-content:center;align-items:start;
}
.article-hero{padding-bottom:8px}
.article-badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);font-size:13px;font-weight:600;margin-bottom:14px;
}
.article-title{
  font-size:clamp(26px,3.6vw,34px);line-height:1.35;font-weight:700;letter-spacing:0;color:var(--text);
}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:16px;font-size:13px;color:var(--text-3)}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-item .ico{width:15px;height:15px}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#DCD6E6}
.article-cover{margin-top:24px;border-radius:20px;overflow:hidden;box-shadow:var(--shadow-1);border:1px solid var(--border)}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}

.article-panel{
  margin-top:32px;background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);padding:32px 36px;
}
.article-body{font-size:17px;line-height:1.9;color:var(--text-2);word-break:break-word}
.article-body p{margin:0 0 20px}
.article-body h2{
  position:relative;margin:40px 0 16px;padding-left:16px;
  font-size:22px;line-height:1.35;font-weight:600;color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--grad);
}
.article-body h2:first-child{margin-top:0}
.article-body h3{margin:28px 0 12px;font-size:18px;font-weight:600;line-height:1.5;color:var(--text)}
.article-body ul,.article-body ol{margin:0 0 20px}
.article-body ul li{position:relative;padding-left:18px;margin-bottom:8px}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.78em;width:6px;height:6px;border-radius:50%;background:var(--brand);
}
.article-body ol{counter-reset:li}
.article-body ol li{position:relative;padding-left:28px;margin-bottom:8px;counter-increment:li}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:7px;width:19px;height:19px;border-radius:6px;
  background:var(--violet-soft);color:var(--violet);font-size:12px;line-height:19px;text-align:center;font-weight:600;
}
.article-body blockquote{
  margin:0 0 20px;padding:16px 18px;background:var(--violet-soft);
  border-left:3px solid var(--brand);border-radius:14px;font-size:16px;
}
.article-body img{border-radius:16px;margin:20px auto;box-shadow:var(--shadow-1)}
.article-body figure{margin:20px 0}
.article-body figcaption{margin-top:10px;font-size:12px;color:var(--text-3);text-align:center}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(255,106,61,.35);transition:border-color .2s ease,color .2s ease}
.article-body a:hover{color:var(--brand-dark);border-bottom-color:var(--brand-dark)}
.article-body strong{color:var(--text)}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 20px;font-size:15px}
.article-body th,.article-body td{padding:10px 12px;border:1px solid var(--divider);text-align:left}
.article-body th{background:var(--bg-alt);color:var(--text);font-weight:600}

.notice-empty{
  display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;padding:48px 20px;
}
.notice-empty .ico{width:34px;height:34px;color:var(--brand)}
.notice-empty h3{font-size:19px;font-weight:600;color:var(--text)}
.notice-empty p{font-size:15px;color:var(--text-2)}

/* toc */
.toc{position:sticky;top:96px}
.toc-box{
  background:var(--card);border:1px solid var(--border);border-radius:18px;padding:18px 16px;box-shadow:var(--shadow-1);
}
.toc-title{font-size:13px;font-weight:600;color:var(--text-3);letter-spacing:.04em;margin-bottom:10px}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:60vh;overflow:auto}
.toc-link{
  display:block;padding:7px 10px;font-size:13px;line-height:1.6;color:var(--text-2);
  border-radius:10px;border-left:2px solid transparent;transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.toc-link:hover{color:var(--brand);background:var(--brand-soft)}
.toc-link.is-current{color:var(--brand);background:var(--brand-soft);border-left-color:var(--brand);font-weight:600}

/* article foot */
.article-foot{margin-top:32px;display:flex;flex-direction:column;gap:24px}
.tag-label{font-size:13px;color:var(--text-3);margin-bottom:10px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--border);color:var(--text-2);font-size:13px;
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.tag:hover{color:var(--brand);border-color:rgba(255,106,61,.45);background:var(--brand-soft);transform:translateY(-1px)}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.pager-card{
  display:flex;flex-direction:column;gap:8px;background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-card);padding:20px 22px;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.pager-card:hover{transform:translateY(-4px);border-color:rgba(255,106,61,.35);box-shadow:var(--shadow-2)}
.pager-card.next{align-items:flex-end;text-align:right}
.pager-dir{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-3)}
.pager-dir .ico{width:15px;height:15px}
.pager-title{font-size:17px;font-weight:600;line-height:1.5;color:var(--text)}
.pager-card:hover .pager-title{color:var(--brand)}
.back-row{margin-top:24px}

/* ============ related ============ */
.section{padding:0 0 88px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;font-weight:700;color:var(--text)}
.section-head p{margin-top:8px;font-size:15px;color:var(--text-2);max-width:640px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);white-space:nowrap}
.text-link .ico{width:15px;height:15px;transition:transform .2s ease}
.text-link:hover .ico{transform:translateX(3px)}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(255,106,61,.35);box-shadow:var(--shadow-2)}
.card-thumb{position:relative;overflow:hidden}
.card-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;transition:transform .4s ease}
.card:hover .card-thumb img{transform:scale(1.04)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-kicker{align-self:flex-start;display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--violet-soft);color:var(--violet);font-size:12px;font-weight:600}
.card-title{font-size:18px;font-weight:600;line-height:1.5;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card:hover .card-title{color:var(--brand)}
.card-desc{font-size:14px;line-height:1.7;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:12px;font-size:12px;color:var(--text-3);border-top:1px solid var(--divider)}

/* ============ cta strip ============ */
.cta-strip{
  background:var(--grad);border-radius:var(--r-lg);padding:36px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:0 20px 46px rgba(255,106,61,.22);
}
.cta-strip h2{font-size:clamp(20px,2.4vw,26px);line-height:1.35;font-weight:700;color:#fff}
.cta-strip p{margin-top:8px;font-size:15px;color:rgba(255,255,255,.9);max-width:560px}
.cta-strip .btn{background:#fff;color:var(--brand-dark);box-shadow:0 10px 24px rgba(22,18,31,.16);white-space:nowrap}
.cta-strip .btn:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(22,18,31,.2)}

/* ============ footer ============ */
.site-footer{background:#171320;color:#fff;padding:60px 0 26px;position:relative;margin-top:0}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;color:#B9B3C7;max-width:340px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li a{font-size:14px;color:#B9B3C7;transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-col li a:hover{color:var(--brand);transform:translateX(2px)}
.footer-col p{font-size:14px;line-height:1.8;color:#B9B3C7}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  font-size:12.5px;color:#8E8998;
}

/* ============ responsive ============ */
@media (max-width:1199px){
  .container{max-width:960px}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:32px}
  .footer-col:last-child{grid-column:1 / -1}
}
@media (max-width:991px){
  .nav{display:none}
  .search{display:none}
  .header-actions .btn-sm{display:none}
  .nav-toggle{display:flex}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .toc{display:none}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .article-panel{padding:26px 24px}
  .cta-strip{flex-direction:column;align-items:flex-start;padding:30px 28px}
  .cta-strip .btn{width:100%}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .crumb-bar{padding-top:16px}
  .article-wrap{padding-bottom:56px}
  .article-panel{padding:22px 18px;border-radius:18px;margin-top:24px}
  .article-body{font-size:16.5px;line-height:1.85}
  .article-body h2{font-size:20px;margin-top:32px}
  .section{padding-bottom:52px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .pager{grid-template-columns:minmax(0,1fr)}
  .pager-card.next{align-items:flex-start;text-align:left}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:22px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-col:last-child{grid-column:1 / -1}
  .cta-strip{border-radius:22px}
  .btn-lg{height:48px}
}
@media (max-width:390px){
  .logo-text{font-size:16px}
  .article-title{font-size:25px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --brand:#FF6A3D;
  --brand-deep:#E0482A;
  --brand-soft:#FFF0EA;
  --violet:#7B5CFF;
  --violet-soft:#F1EDFF;
  --mint:#16C79A;
  --mint-soft:#E7FBF4;
  --grad:linear-gradient(118deg,#FF6A3D 0%,#7B5CFF 100%);
  --bg:#FFF8F3;
  --bg-alt:#F7F5FF;
  --card:#FFFFFF;
  --border:#F1E9E4;
  --line:#EDE7F6;
  --t1:#16121F;
  --t2:#5A5468;
  --t3:#8E8998;
  --inv:#FFFFFF;
  --warn:#FF8A3D;
  --err:#E0482A;
  --r-card:22px;
  --r-lg:28px;
  --r-img:16px;
  --r-pill:999px;
  --r-btn:14px;
  --sh-1:0 6px 20px rgba(22,18,31,.05);
  --sh-2:0 16px 36px rgba(255,106,61,.16);
  --sh-btn:0 10px 24px rgba(255,106,61,.28);
  --ctn:1200px;
  --sec:88px;
  --gap:22px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--t1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.svg-sprite{position:absolute;width:0;height:0;overflow:hidden;}
.ico{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none;}

.container{width:100%;max-width:var(--ctn);margin:0 auto;padding:0 20px;}
.section{padding:var(--sec) 0;}
.section-alt{background:var(--bg-alt);}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--violet-soft);color:var(--violet);
  font-size:13px;font-weight:600;letter-spacing:.2px;
}
.eyebrow.mint{background:var(--mint-soft);color:#0E9C78;}
.eyebrow.brand{background:var(--brand-soft);color:var(--brand-deep);}
h1{font-size:clamp(30px,4.6vw,52px);line-height:1.15;font-weight:800;letter-spacing:0;}
h2{font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700;margin:16px 0 14px;}
h3{font-size:20px;line-height:1.35;font-weight:600;}
p.lead{color:var(--t2);font-size:17px;line-height:1.9;}
.muted{color:var(--t3);font-size:14px;line-height:1.7;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn .ico{width:18px;height:18px;}
.btn-primary{background:var(--grad);color:var(--inv);box-shadow:var(--sh-btn);}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(255,106,61,.34);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(255,106,61,.28);}
.btn-ghost{background:#fff;color:var(--brand-deep);border:1px solid rgba(255,106,61,.45);}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--brand-deep);box-shadow:0 10px 24px rgba(22,18,31,.12);}
.btn-light:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(22,18,31,.18);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--border);
  box-shadow:0 2px 12px rgba(22,18,31,.04);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-scrolled{background:rgba(255,255,255,.94);box-shadow:0 4px 16px rgba(22,18,31,.08);}
@supports (backdrop-filter:blur(6px)){
  .site-header.is-scrolled{backdrop-filter:blur(6px);}
}
.header-inner{display:flex;align-items:center;gap:20px;height:70px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none;}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;color:#fff;
  box-shadow:0 6px 14px rgba(255,106,61,.32);
}
.logo-mark .ico{width:18px;height:18px;stroke-width:2;}
.logo-text{font-size:18px;font-weight:700;letter-spacing:0;color:var(--t1);}
.nav{display:flex;align-items:center;gap:28px;margin-left:14px;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--t2);
  padding:6px 0;transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--grad);border-radius:2px;transform:scaleX(0);
  transform-origin:left center;transition:transform .18s ease;
}
.nav-link:hover{color:var(--brand-deep);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-deep);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 16px;border-radius:var(--r-pill);
  background:var(--violet-soft);color:var(--t3);
  border:1px solid transparent;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.search .ico{width:17px;height:17px;stroke-width:2;}
.search input{
  border:0;background:transparent;outline:none;width:140px;font-size:14px;color:var(--t1);
}
.search input::placeholder{color:var(--t3);}
.search:focus-within{
  background:#fff;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(255,106,61,.15);
}
.menu-btn{
  display:none;width:44px;height:44px;border-radius:14px;
  align-items:center;justify-content:center;color:var(--t1);
  border:1px solid var(--border);background:#fff;
}
.menu-btn .ico{width:22px;height:22px;stroke-width:2;}
.mobile-panel{
  display:none;padding:8px 20px 22px;background:#fff;
  border-top:1px solid var(--border);
}
.site-header.nav-open .mobile-panel{display:block;}
.mobile-panel .nav{flex-direction:column;align-items:stretch;gap:2px;margin:10px 0 14px;}
.mobile-panel .nav-link{
  padding:13px 12px;border-radius:14px;font-size:16px;
  background:var(--bg);border:1px solid var(--border);
}
.mobile-panel .nav-link::after{display:none;}
.mobile-panel .nav-link.is-active{background:var(--brand-soft);border-color:rgba(255,106,61,.35);}
.mobile-panel .search{width:100%;height:48px;margin-bottom:12px;}
.mobile-panel .search input{width:100%;}

/* ============ 页面头 banner ============ */
.page-hero{padding:32px 0 0;}
.hero-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  min-height:320px;display:flex;align-items:flex-end;
  box-shadow:var(--sh-1);isolation:isolate;
}
.hero-band-img{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;z-index:-2;
}
.hero-band::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(118deg,rgba(255,106,61,.9) 0%,rgba(123,92,255,.82) 100%);
}
.hero-band-body{padding:38px 40px;color:#fff;max-width:760px;}
.hero-band-body h1{color:#fff;margin:14px 0 12px;}
.hero-band-body p{font-size:16px;line-height:1.8;color:rgba(255,255,255,.92);max-width:560px;}
.badge-solid{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.22);border:1px solid rgba(255,255,255,.55);
  color:#fff;font-size:13px;font-weight:600;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--t3);margin-bottom:14px;
}
.breadcrumb a{color:var(--t2);transition:color .18s ease;}
.breadcrumb a:hover{color:var(--brand-deep);}
.breadcrumb .sep{color:var(--t3);}
.breadcrumb .current{color:var(--t3);}

/* ============ 介绍段 ============ */
.split{
  display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;
}
.split-media{position:relative;}
.split-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
}
.float-chip{
  position:absolute;left:-14px;bottom:22px;
  display:flex;align-items:center;gap:10px;
  background:var(--mint-soft);color:#0E9C78;
  padding:12px 18px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;box-shadow:0 12px 26px rgba(22,199,154,.22);
}
.float-chip strong{font-size:22px;font-weight:800;}
.check-list{margin-top:24px;display:grid;gap:14px;}
.check-list li{display:flex;align-items:flex-start;gap:12px;font-size:15px;color:var(--t2);}
.check-list .dot{
  width:24px;height:24px;border-radius:8px;background:var(--brand-soft);color:var(--brand-deep);
  display:inline-flex;align-items:center;justify-content:center;flex:none;margin-top:2px;
}
.check-list .dot .ico{width:14px;height:14px;stroke-width:2.4;}

/* ============ 功能卡网格 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(255,106,61,.35);
  box-shadow:var(--sh-2);
}
.card-icon{
  width:44px;height:44px;border-radius:12px;background:var(--grad);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px rgba(123,92,255,.24);margin-bottom:18px;
}
.card-icon.alt{background:linear-gradient(118deg,#7B5CFF 0%,#16C79A 100%);}
.card h3{margin-bottom:10px;font-size:19px;}
.card p{color:var(--t2);font-size:14.5px;line-height:1.8;}
.card-tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:var(--violet-soft);color:var(--violet);font-size:12px;font-weight:600;margin-top:16px;
}

/* ============ 节奏 / 步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:36px;}
.step{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:22px;position:relative;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.step:hover{transform:translateY(-4px);border-color:rgba(123,92,255,.35);box-shadow:0 16px 34px rgba(123,92,255,.14);}
.step-num{
  width:30px;height:30px;border-radius:10px;background:var(--grad);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;margin-bottom:14px;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{color:var(--t2);font-size:14px;line-height:1.75;}
.progress-wrap{
  margin-top:40px;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);
}
.progress-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:16px;}
.progress-head strong{font-size:26px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.progress-head span{font-size:13px;color:var(--t3);}
.progress-track{height:8px;border-radius:var(--r-pill);background:var(--violet-soft);overflow:hidden;}
.progress-fill{
  height:100%;width:0;border-radius:var(--r-pill);background:var(--grad);
  transition:width .4s ease;
}
.progress-dots{display:flex;justify-content:space-between;margin-top:14px;}
.progress-dot{display:flex;flex-direction:column;align-items:center;gap:8px;font-size:12px;color:var(--t3);flex:1;}
.progress-dot i{
  width:12px;height:12px;border-radius:50%;background:var(--brand);
  display:block;position:relative;
}
.progress-dot.done i{background:var(--brand);}
.progress-dot.now i{
  background:#fff;border:3px solid var(--brand);
  animation:pulse 1.8s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 0 rgba(255,106,61,.35);}
  50%{box-shadow:0 0 0 8px rgba(255,106,61,0);}
}
.progress-dot.now{color:var(--brand-deep);font-weight:600;}

/* ============ FAQ ============ */
.faq{max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-img);
  margin-bottom:12px;box-shadow:var(--sh-1);overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(255,106,61,.3);}
.faq-item[open]{border-color:rgba(255,106,61,.4);box-shadow:0 12px 28px rgba(255,106,61,.1);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:17px;font-weight:600;cursor:pointer;list-style:none;
}
.faq-q::-webkit-details-marker{display:none;}
.faq-q .ico{width:18px;height:18px;color:var(--brand-deep);transition:transform .18s ease;stroke-width:2.2;}
.faq-item[open] .faq-q .ico{transform:rotate(180deg);}
.faq-a{padding:0 22px 22px;color:var(--t2);font-size:15px;line-height:1.85;}

/* ============ CTA ============ */
.cta-band{
  border-radius:var(--r-lg);background:var(--grad);color:#fff;
  padding:36px 40px;display:flex;align-items:center;justify-content:space-between;
  gap:28px;box-shadow:0 18px 44px rgba(255,106,61,.26);
}
.cta-band h2{color:#fff;margin:0 0 8px;font-size:clamp(22px,2.6vw,30px);}
.cta-band p{color:rgba(255,255,255,.92);font-size:15px;}

/* ============ 页脚 ============ */
.site-footer{background:#171320;color:rgba(255,255,255,.72);margin-top:var(--sec);position:relative;}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad);}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px;
  padding:64px 0 40px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:320px;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul{display:grid;gap:11px;}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);}
.footer-col a{
  font-size:14px;color:rgba(255,255,255,.66);
  transition:color .18s ease,transform .18s ease;display:inline-block;
}
.footer-col a:hover{color:var(--brand);transform:translateX(-2px);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 28px;
  font-size:12.5px;color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{max-width:960px;}
  .split{gap:40px;}
}
@media (max-width:991px){
  :root{--sec:64px;}
  .nav{display:none;}
  .search{display:none;}
  .header-actions .btn-primary{display:none;}
  .menu-btn{display:inline-flex;}
  .mobile-panel .search{display:flex;}
  .split{grid-template-columns:1fr;gap:32px;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .cta-band{flex-direction:column;align-items:flex-start;text-align:left;}
  .float-chip{left:16px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  :root{--sec:48px;--gap:16px;}
  .container{padding:0 16px;}
  h1{font-size:30px;}
  .header-inner{height:64px;gap:12px;}
  .page-hero{padding-top:20px;}
  .hero-band{min-height:280px;}
  .hero-band-body{padding:26px 22px;}
  .grid-3{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .progress-head{flex-direction:column;align-items:flex-start;gap:6px;}
  .progress-dots{display:none;}
  .faq-q{font-size:16px;padding:18px;}
  .faq-a{padding:0 18px 18px;}
  .cta-band{padding:26px 22px;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;padding:48px 0 32px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .section-head{margin-bottom:26px;}
  .card{padding:22px;}
}
@media (max-width:390px){
  h1{font-size:28px;}
  .logo-text{font-size:17px;}
  .btn{padding:0 18px;font-size:14px;}
  .card{padding:20px;}
}

/* roulang page: category2 */
:root{
  --primary:#FF6A3D;
  --primary-dark:#E0482A;
  --primary-soft:#FFF0EA;
  --purple:#7B5CFF;
  --purple-soft:#F1EDFF;
  --mint:#16C79A;
  --mint-soft:#E7FBF4;
  --grad:linear-gradient(118deg,#FF6A3D 0%,#7B5CFF 100%);
  --bg:#FFF8F3;
  --bg-alt:#F7F5FF;
  --card:#FFFFFF;
  --border:#F1E9E4;
  --divider:#EDE7F6;
  --ink:#16121F;
  --ink-2:#5A5468;
  --ink-3:#8E8998;
  --warn:#FF8A3D;
  --warn-soft:#FFF4E8;
  --err:#E0482A;
  --err-soft:#FDECE7;
  --shadow-sm:0 6px 20px rgba(22,18,31,.05);
  --shadow-md:0 16px 36px rgba(255,106,61,.16);
  --shadow-btn:0 10px 24px rgba(255,106,61,.28);
  --r-card:22px;
  --r-lg:28px;
  --r-img:16px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{list-style:none}
h1,h2,h3,h4{letter-spacing:0;font-weight:700}
.ico{width:1em;height:1em;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
svg.ico{display:inline-block;vertical-align:-.125em}
::selection{background:rgba(255,106,61,.22)}
:focus-visible{outline:3px solid rgba(255,106,61,.35);outline-offset:2px;border-radius:8px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--border);
  box-shadow:0 2px 12px rgba(22,18,31,.04);
  transition:box-shadow .2s ease,backdrop-filter .2s ease;
}
.site-header.is-scrolled{
  box-shadow:0 4px 16px rgba(22,18,31,.07);
  backdrop-filter:blur(6px);
}
.header-inner{display:flex;align-items:center;gap:26px;height:70px}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-size:17px;
  box-shadow:0 6px 14px rgba(255,106,61,.28);
}
.logo-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:0}
.nav{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 12px;font-size:15px;font-weight:500;color:var(--ink-2);
  border-radius:10px;white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  border-radius:2px;background:var(--grad);
  transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.nav-link:hover{color:var(--primary-dark);background:var(--primary-soft)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search{position:relative;display:flex;align-items:center}
.search input{
  width:210px;height:40px;border-radius:999px;
  background:var(--purple-soft);border:1px solid transparent;
  padding:0 42px 0 18px;font-size:14px;color:var(--ink);
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.search input::placeholder{color:var(--ink-3)}
.search input:focus{
  outline:none;background:#fff;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(255,106,61,.15);
}
.search button{
  position:absolute;right:6px;width:30px;height:30px;border:0;border-radius:50%;
  background:transparent;color:var(--ink-3);display:grid;place-items:center;
  cursor:pointer;transition:color .18s ease,background .18s ease;
}
.search button:hover{color:var(--primary-dark);background:var(--primary-soft)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-grad{background:var(--grad);color:#fff;box-shadow:var(--shadow-btn)}
.btn-grad:hover{transform:translateY(-1px);box-shadow:0 14px 28px rgba(255,106,61,.34)}
.btn-grad:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--primary-dark);border-color:rgba(255,106,61,.45)}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary)}
.btn-white{background:#fff;color:var(--primary-dark);box-shadow:0 8px 20px rgba(22,18,31,.12)}
.btn-white:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(22,18,31,.18)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.menu-btn{
  display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--border);
  background:#fff;color:var(--ink);place-items:center;cursor:pointer;
}
.menu-btn:hover{background:var(--primary-soft);color:var(--primary-dark);border-color:rgba(255,106,61,.35)}
.mobile-panel{
  display:none;border-top:1px solid var(--border);background:#fff;
  padding:16px 20px 22px;
}
.mobile-panel.is-open{display:block;animation:fadeUp .22s ease both}
.mobile-panel .nav-link{display:block;padding:13px 12px;font-size:16px;border-radius:14px}
.mobile-panel .nav-link::after{display:none}
.mobile-panel .search{margin:14px 0 12px}
.mobile-panel .search input{width:100%}
.mobile-panel .btn{width:100%}
@keyframes fadeUp{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

/* ---------- page head ---------- */
.page-head{padding:34px 0 0}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:20px;flex-wrap:wrap}
.crumb a{color:var(--ink-3);transition:color .18s ease}
.crumb a:hover{color:var(--primary-dark)}
.crumb-current{color:var(--ink-2)}
.page-head h1{
  font-size:clamp(30px,4.2vw,44px);line-height:1.18;font-weight:800;color:var(--ink);
  max-width:900px;
}
.page-sub{font-size:17px;color:var(--ink-2);margin-top:14px;max-width:720px}
.meta-row{
  display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:20px;
  font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums;
}
.meta-row li{display:inline-flex;align-items:center;gap:7px}
.meta-row li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--purple);opacity:.55}
.head-line{height:2px;border-radius:2px;background:var(--grad);opacity:.32;margin-top:26px}

/* ---------- doc layout ---------- */
.doc-wrap{padding:48px 0 8px}
.doc-layout{display:grid;grid-template-columns:212px minmax(0,1fr);gap:40px;align-items:start}
.doc-toc{
  position:sticky;top:92px;
  background:#fff;border:1px solid var(--border);border-radius:20px;
  padding:18px 16px;box-shadow:var(--shadow-sm);
}
.toc-title{font-size:13px;font-weight:700;color:var(--ink-3);letter-spacing:.06em;margin-bottom:10px}
.doc-toc ol{display:block}
.doc-toc a{
  display:block;padding:9px 11px;border-radius:11px;
  font-size:14px;color:var(--ink-2);line-height:1.5;
  transition:background .18s ease,color .18s ease,padding-left .18s ease;
}
.doc-toc a:hover{background:var(--primary-soft);color:var(--primary-dark);padding-left:15px}
.doc-toc a.is-current{background:var(--purple-soft);color:var(--purple);font-weight:600}

.doc-body{max-width:820px;min-width:0}
.doc-section{margin-bottom:46px;scroll-margin-top:96px}
.doc-section h2{
  position:relative;font-size:26px;line-height:1.32;font-weight:700;color:var(--ink);
  padding-left:16px;margin-bottom:16px;
}
.doc-section h2::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:4px;background:var(--grad);
}
.doc-section p{font-size:17px;line-height:1.9;color:var(--ink-2);margin-bottom:16px}
.doc-section strong{color:var(--ink);font-weight:600}
.doc-list{margin:4px 0 18px}
.doc-list li{
  position:relative;padding-left:20px;font-size:16px;line-height:1.9;color:var(--ink-2);margin-bottom:8px;
}
.doc-list li::before{
  content:"";position:absolute;left:2px;top:.78em;width:7px;height:7px;border-radius:50%;background:var(--primary);
}
.doc-figure{margin:8px 0 22px}
.doc-figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img);
  box-shadow:var(--shadow-sm);border:1px solid var(--border);
}
.doc-figure figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px}

.note-card{
  display:grid;grid-template-columns:44px minmax(0,1fr);gap:16px;
  background:var(--purple-soft);border:1px solid #E4DDFF;border-radius:16px;
  padding:20px 22px;margin:6px 0 10px;
}
.note-num{
  width:44px;height:44px;border-radius:14px;background:#fff;color:var(--purple);
  display:grid;place-items:center;font-size:15px;font-weight:800;
  font-variant-numeric:tabular-nums;box-shadow:0 4px 12px rgba(123,92,255,.14);
}
.note-card h3{font-size:17px;font-weight:600;color:var(--ink);margin-bottom:6px}
.note-card p{font-size:15px;line-height:1.8;color:var(--ink-2);margin:0}
.note-card p + p{margin-top:8px}

.quote{
  border-left:3px solid var(--primary);background:var(--purple-soft);
  border-radius:0 14px 14px 0;padding:16px 20px;margin:6px 0 18px;
  font-size:15px;line-height:1.85;color:var(--ink-2);
}

/* ---------- steps ---------- */
.steps-block{padding:56px 0 8px;background:var(--bg-alt);margin-top:8px;border-radius:36px}
.steps-head{max-width:700px;margin-bottom:34px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 14px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary-dark);
  font-size:12.5px;font-weight:600;margin-bottom:14px;
}
.steps-head h2{font-size:clamp(24px,3vw,30px);line-height:1.3;font-weight:700}
.steps-head p{font-size:16px;color:var(--ink-2);margin-top:12px}
.steps{padding-left:2px}
.step{position:relative;display:grid;grid-template-columns:48px minmax(0,1fr);gap:20px;padding-bottom:30px}
.step:last-child{padding-bottom:0}
.step:not(:last-child)::before{
  content:"";position:absolute;left:23px;top:54px;bottom:2px;
  border-left:2px dashed rgba(255,106,61,.38);
}
.step-num{
  width:48px;height:48px;border-radius:16px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:18px;font-weight:800;
  font-variant-numeric:tabular-nums;box-shadow:0 10px 20px rgba(123,92,255,.22);
}
.step-body h3{font-size:18px;font-weight:600;margin-bottom:6px}
.step-body p{font-size:15px;line-height:1.8;color:var(--ink-2);margin:0}

/* ---------- tips ---------- */
.tips-block{padding:64px 0 0}
.tips-block h2{font-size:clamp(24px,3vw,30px);line-height:1.3;margin-bottom:12px}
.tips-block .lead{font-size:16px;color:var(--ink-2);max-width:720px;margin-bottom:28px}
.tips{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.tip{border-radius:20px;padding:22px;border:1px solid transparent}
.tip h3{font-size:16px;font-weight:600;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.tip p{font-size:14px;line-height:1.8;color:var(--ink-2);margin:0}
.tip-ok{background:var(--mint-soft);border-color:rgba(22,199,154,.28);color:#0E8E6D}
.tip-ok h3{color:#0E8E6D}
.tip-warn{background:var(--warn-soft);border-color:rgba(255,138,61,.3)}
.tip-warn h3{color:#C1601F}
.tip-err{background:var(--err-soft);border-color:rgba(224,72,42,.26)}
.tip-err h3{color:var(--err)}
.tip h3 .ico{font-size:17px}

/* ---------- related entries ---------- */
.related{padding:64px 0 0}
.related h2{font-size:clamp(24px,3vw,30px);line-height:1.3;margin-bottom:24px}
.entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.entry-card{
  display:grid;grid-template-columns:170px minmax(0,1fr);
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.entry-card:hover{transform:translateY(-4px);border-color:rgba(255,106,61,.35);box-shadow:var(--shadow-md)}
.entry-card img{width:100%;height:100%;min-height:172px;object-fit:cover}
.entry-body{padding:22px 24px;display:flex;flex-direction:column;gap:10px}
.entry-tag{
  align-self:flex-start;height:26px;display:inline-flex;align-items:center;
  padding:0 12px;border-radius:999px;background:var(--purple-soft);color:var(--purple);
  font-size:12.5px;font-weight:600;
}
.entry-body h3{font-size:19px;font-weight:600;line-height:1.4}
.entry-body h3 a{transition:color .18s ease}
.entry-body h3 a:hover{color:var(--primary-dark)}
.entry-body p{font-size:14px;line-height:1.75;color:var(--ink-2);margin:0}
.entry-more{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--primary-dark);
}
.entry-card:hover .entry-more .ico{transform:translateX(3px)}
.entry-more .ico{transition:transform .2s ease}

/* ---------- cta bar ---------- */
.cta-bar{
  margin:64px 0 0;border-radius:var(--r-lg);
  background:var(--grad);color:#fff;
  padding:30px 34px;display:flex;align-items:center;justify-content:space-between;gap:26px;
  box-shadow:0 18px 40px rgba(123,92,255,.22);
}
.cta-bar h2{font-size:22px;line-height:1.35;font-weight:700;color:#fff}
.cta-bar p{font-size:14.5px;line-height:1.75;color:rgba(255,255,255,.9);margin-top:8px;max-width:560px}

/* ---------- footer ---------- */
.site-footer{position:relative;background:#171320;color:#fff;margin-top:76px}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:36px;padding:56px 0 36px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{color:#A9A3B8;font-size:14px;line-height:1.85;margin-top:14px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col li{margin-bottom:10px}
.footer-col a,.footer-col p{display:inline-block;color:#A9A3B8;font-size:14px;line-height:1.8;transition:color .18s ease,transform .18s ease}
.footer-col a:hover{color:var(--primary);transform:translateX(2px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:18px 0 22px;display:flex;align-items:center;justify-content:space-between;
  gap:12px;flex-wrap:wrap;font-size:12.5px;color:#8E8998;
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .header-inner{gap:18px}
  .nav-link{padding:8px 9px;font-size:14.5px}
  .search input{width:170px}
  .entry-card{grid-template-columns:150px minmax(0,1fr)}
}
@media (max-width:991px){
  .nav,.header-actions .search,.header-actions .btn{display:none}
  .menu-btn{display:grid}
  .header-actions{margin-left:auto;gap:10px}
  .doc-layout{grid-template-columns:minmax(0,1fr);gap:26px}
  .doc-toc{
    position:static;display:block;padding:12px;border-radius:18px;
  }
  .doc-toc .toc-title{display:none}
  .doc-toc ol{display:flex;gap:8px;overflow-x:auto;padding-bottom:2px;-webkit-overflow-scrolling:touch}
  .doc-toc a{
    white-space:nowrap;background:var(--purple-soft);border-radius:999px;padding:9px 16px;font-size:13.5px;
  }
  .doc-toc a:hover{padding-left:16px}
  .doc-toc a.is-current{background:var(--primary);color:#fff}
  .doc-body{max-width:100%}
  .steps-block{border-radius:28px;padding:44px 0 8px}
  .entry-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-bar{flex-direction:column;align-items:flex-start}
  .cta-bar .btn{width:100%}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .page-head{padding:24px 0 0}
  .page-head h1{font-size:clamp(28px,7vw,34px)}
  .page-sub{font-size:16px}
  .doc-wrap{padding:34px 0 0}
  .doc-section{margin-bottom:38px}
  .doc-section h2{font-size:22px}
  .doc-section p{font-size:16px;line-height:1.9}
  .note-card{grid-template-columns:38px minmax(0,1fr);padding:18px}
  .note-num{width:38px;height:38px;border-radius:12px;font-size:14px}
  .steps-block{padding:38px 0 0;border-radius:24px}
  .step{grid-template-columns:42px minmax(0,1fr);gap:14px;padding-bottom:26px}
  .step-num{width:42px;height:42px;border-radius:14px;font-size:16px}
  .step:not(:last-child)::before{left:20px;top:48px}
  .tips{grid-template-columns:minmax(0,1fr)}
  .entry-card{grid-template-columns:minmax(0,1fr)}
  .entry-card img{min-height:180px;height:180px}
  .cta-bar{margin-top:48px;padding:26px 22px;border-radius:24px}
  .cta-bar h2{font-size:20px}
  .site-footer{margin-top:56px}
  .footer-grid{grid-template-columns:1fr 1fr;padding:40px 0 26px;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
}
@media (max-width:390px){
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .logo-text{font-size:16.5px}
  .meta-row{gap:8px 16px}
}

/* roulang page: category3 */
:root{
  --brand:#FF6A3D;
  --brand-dark:#E0482A;
  --brand-soft:#FFF0EA;
  --violet:#7B5CFF;
  --violet-soft:#F1EDFF;
  --mint:#16C79A;
  --mint-soft:#E7FBF4;
  --warn:#FF8A3D;
  --err:#E0482A;
  --grad:linear-gradient(118deg,#FF6A3D 0%,#7B5CFF 100%);
  --bg:#FFF8F3;
  --bg-alt:#F7F5FF;
  --card:#FFFFFF;
  --line:#F1E9E4;
  --line2:#EDE7F6;
  --ink:#16121F;
  --ink2:#5A5468;
  --ink3:#8E8998;
  --r-sm:14px;
  --r-card:22px;
  --r-big:28px;
  --sh:0 6px 20px rgba(22,18,31,.05);
  --sh-hover:0 16px 36px rgba(255,106,61,.16);
  --sh-cta:0 10px 24px rgba(255,106,61,.28);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.ico{width:1em;height:1em;display:inline-block;vertical-align:middle;flex:0 0 auto}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 12px rgba(22,18,31,.04);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-header.is-scrolled{
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  box-shadow:0 4px 16px rgba(22,18,31,.07);
}
.header-inner{display:flex;align-items:center;gap:26px;height:70px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-size:17px;
  box-shadow:0 6px 14px rgba(123,92,255,.28);
}
.logo-text{font-size:18px;font-weight:700;letter-spacing:0;color:var(--ink)}
.nav{display:flex;align-items:center;gap:26px}
.nav-link{
  position:relative;padding:6px 0;font-size:15px;font-weight:500;color:var(--ink2);
  transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 16px;
  background:var(--violet-soft);border:1px solid transparent;border-radius:999px;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.search .ico{font-size:16px;color:var(--ink3)}
.search input{border:0;background:transparent;outline:none;width:150px;font-size:14px}
.search input::placeholder{color:var(--ink3)}
.search:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(255,106,61,.15)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;cursor:pointer;font-weight:600;border-radius:999px;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--sh-cta)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(255,106,61,.32)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(255,106,61,.3)}
.btn-ghost{background:#fff;color:var(--brand-dark);border:1px solid rgba(255,106,61,.42)}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.btn-lg{height:50px;padding:0 28px;font-size:16px}
.btn-block{width:100%}
.menu-btn{
  display:none;width:42px;height:42px;border-radius:12px;background:var(--bg-alt);
  place-items:center;color:var(--ink);font-size:20px;
}
.menu-btn:hover{background:var(--violet-soft);color:var(--violet)}
.mobile-panel{display:none;background:#fff;border-top:1px solid var(--line);padding:16px 0 22px}
.mobile-panel.is-open{display:block;animation:fadeDown .22s ease both}
.mobile-panel .search{background:#fff;border-color:var(--line);box-shadow:var(--sh);margin-bottom:14px}
.mobile-panel .search input{width:100%}
.m-nav{display:grid;gap:4px;margin-bottom:16px}
.m-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;border-radius:14px;font-size:15px;font-weight:500;color:var(--ink2);
  transition:background .18s ease,color .18s ease;
}
.m-nav a:hover{background:var(--bg-alt);color:var(--brand)}
.m-nav a.is-active{background:var(--brand-soft);color:var(--brand-dark);font-weight:600}
@keyframes fadeDown{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}

/* 页面头 */
.page-head{padding:56px 0 8px;position:relative;overflow:hidden}
.page-head::before{
  content:"";position:absolute;width:420px;height:420px;top:-180px;right:-120px;border-radius:50%;
  background:radial-gradient(circle,rgba(123,92,255,.16),transparent 68%);filter:blur(10px);pointer-events:none;
}
.page-head::after{
  content:"";position:absolute;width:360px;height:360px;top:40px;left:-160px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,61,.16),transparent 68%);filter:blur(10px);pointer-events:none;
}
.head-narrow{position:relative;z-index:1;max-width:760px;margin:0 auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;padding:6px 15px;border-radius:999px;
  background:var(--violet-soft);color:var(--violet);font-size:13px;font-weight:600;
}
.page-head h1{
  font-size:clamp(30px,4.6vw,46px);line-height:1.18;font-weight:800;letter-spacing:0;
  margin:20px 0 14px;
}
.page-head .lead{color:var(--ink2);font-size:16px;max-width:600px;margin:0 auto 26px}
.search-lg{
  max-width:520px;margin:0 auto 26px;height:48px;background:#fff;border:1px solid var(--line);
  box-shadow:var(--sh);padding:0 20px;
}
.search-lg .ico{font-size:18px;color:var(--brand)}
.search-lg input{width:100%;font-size:15px}
.chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.chip{
  display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--ink2);font-size:14px;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.chip:hover{border-color:rgba(255,106,61,.45);color:var(--brand-dark);transform:translateY(-1px)}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(255,106,61,.26)}

/* 通用板块 */
.section{padding:88px 0}
.section-alt{background:var(--bg-alt)}
.section-head{max-width:680px;margin-bottom:34px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{font-size:clamp(24px,3vw,32px);line-height:1.28;font-weight:700;margin-bottom:12px}
.section-head p{color:var(--ink2);font-size:15px}
.tagline{
  display:inline-block;margin-bottom:12px;font-size:13px;font-weight:600;
  color:var(--violet);background:var(--violet-soft);padding:5px 14px;border-radius:999px;
}

/* 两栏 FAQ */
.faq-layout{display:grid;grid-template-columns:3fr 9fr;gap:24px;align-items:start}
.faq-side{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px;box-shadow:var(--sh);position:sticky;top:96px;
}
.side-title{font-size:13px;font-weight:600;color:var(--ink3);padding:4px 12px 10px}
.side-item{
  display:block;width:100%;text-align:left;padding:12px 14px;border-radius:12px;
  border-left:3px solid transparent;color:var(--ink2);font-size:14px;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.side-item:hover{background:var(--bg-alt);color:var(--ink)}
.side-item.is-active{background:var(--brand-soft);border-left-color:var(--brand);color:var(--brand-dark);font-weight:600}
.side-note{
  margin-top:14px;padding:14px;border-radius:16px;background:var(--mint-soft);
  font-size:13px;line-height:1.7;color:#0E8F73;
}
.faq-group-title{font-size:13px;font-weight:600;color:var(--ink3);margin:0 0 12px 4px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;margin-bottom:12px;
  box-shadow:var(--sh);overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item:hover{border-color:rgba(255,106,61,.35)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;cursor:pointer;font-size:17px;font-weight:600;line-height:1.5;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .ico{font-size:18px;color:var(--brand);transition:transform .2s ease}
.faq-item[open] summary .ico{transform:rotate(45deg)}
.faq-item[open]{border-color:rgba(255,106,61,.45);box-shadow:var(--sh-hover)}
.faq-body{padding:0 22px 20px;color:var(--ink2);font-size:15px;line-height:1.85}
.faq-body p{margin-bottom:10px}
.faq-body p:last-child{margin-bottom:0}
.faq-body strong{color:var(--ink)}
.faq-empty{
  display:none;text-align:center;padding:48px 24px;background:#fff;border:1px dashed var(--line);
  border-radius:var(--r-card);
}
.faq-empty .ico{font-size:34px;color:var(--violet)}
.faq-empty h3{font-size:17px;margin:14px 0 6px}
.faq-empty p{color:var(--ink3);font-size:14px;margin-bottom:18px}

/* 数据条 */
.stats{
  background:var(--bg-alt);border:1px solid var(--line2);border-radius:var(--r-big);
  padding:36px 28px;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;text-align:center;
}
.stat-num{
  font-size:clamp(26px,3.2vw,32px);font-weight:800;line-height:1.1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;
}
.stat-label{font-size:13px;color:var(--ink2);margin-top:8px}

/* 图文说明 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.split-media{position:relative}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-big);box-shadow:var(--sh)}
.media-badge{
  position:absolute;left:18px;bottom:18px;display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.94);border-radius:999px;padding:8px 16px;font-size:13px;font-weight:600;
  color:var(--ink);box-shadow:var(--sh);font-variant-numeric:tabular-nums;
}
.media-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--mint)}
.split-body h2{font-size:clamp(23px,2.8vw,30px);line-height:1.3;font-weight:700;margin-bottom:14px}
.split-body p{color:var(--ink2);font-size:15px;margin-bottom:22px}
.check-list{display:grid;gap:16px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink2)}
.check-list li b{display:block;color:var(--ink);font-weight:600;font-size:15px;margin-bottom:2px}
.check-ico{
  flex:0 0 auto;width:24px;height:24px;border-radius:999px;background:var(--mint-soft);
  color:var(--mint);display:grid;place-items:center;font-size:13px;margin-top:4px;
}

/* 联系表单 */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:28px;align-items:start}
.contact-info h2{font-size:clamp(23px,2.8vw,30px);line-height:1.3;font-weight:700;margin-bottom:14px}
.contact-info p{color:var(--ink2);font-size:15px;margin-bottom:22px}
.info-line{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink2);margin-bottom:12px}
.info-line .ico{font-size:16px;color:var(--brand)}
.form-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:var(--sh)}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:13px 18px;font-size:15px;line-height:1.6;outline:none;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field select{height:50px;appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink3) 50%),linear-gradient(135deg,var(--ink3) 50%,transparent 50%);background-position:calc(100% - 22px) 22px,calc(100% - 16px) 22px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.field textarea{min-height:120px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,106,61,.15)}
.field .err{display:none;color:var(--err);font-size:12px;margin-top:6px}
.field.is-invalid input,.field.is-invalid textarea,.field.is-invalid select{border-color:var(--err)}
.field.is-invalid .err{display:block}
.form-tip{font-size:12px;color:var(--ink3);margin-top:12px;text-align:center}
.form-success{
  display:none;background:var(--mint-soft);color:#0B7C63;border-radius:16px;
  padding:14px 18px;font-size:14px;margin-bottom:16px;
}
.form-success.is-show{display:block}
.spinner{
  display:none;width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(255,255,255,.5);border-top-color:#fff;animation:spin .7s linear infinite;
}
.is-loading .spinner{display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}

/* 页脚 */
.site-footer{background:#171320;color:#fff;position:relative;margin-top:88px}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:var(--grad)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:32px;padding:56px 0 34px}
.site-footer .logo-text{color:#fff}
.footer-brand p{color:#B7B2C4;font-size:14px;line-height:1.8;margin-top:14px;max-width:320px}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:16px;color:#fff}
.footer-col ul{display:grid;gap:10px}
.footer-col li a{
  display:inline-block;font-size:14px;color:#B7B2C4;transition:color .18s ease,transform .18s ease;
}
.footer-col li a:hover{color:var(--brand);transform:translateX(2px)}
.footer-col p{font-size:14px;color:#B7B2C4;line-height:1.8}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.09);
  font-size:13px;color:#8E8998;
}

@media (max-width:1199px){
  .container{max-width:960px}
  .header-inner{gap:18px}
  .nav{gap:18px}
  .search input{width:120px}
}
@media (max-width:991px){
  .nav,.header-actions .search,.header-actions .btn{display:none}
  .menu-btn{display:grid}
  .section{padding:64px 0}
  .faq-layout{grid-template-columns:1fr}
  .faq-side{position:static}
  .faq-side .side-item{display:inline-flex;border-left:0;border-bottom:3px solid transparent;width:auto;padding:8px 14px;border-radius:999px}
  .faq-side .side-item.is-active{border-left:0;border-bottom-color:var(--brand)}
  .faq-side .side-list{display:flex;flex-wrap:wrap;gap:8px}
  .side-title{padding-bottom:12px}
  .split{grid-template-columns:1fr;gap:28px}
  .contact-grid{grid-template-columns:1fr;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .site-footer{margin-top:64px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .page-head{padding:36px 0 4px}
  .page-head h1{font-size:clamp(28px,7.4vw,34px)}
  .stats{grid-template-columns:1fr;padding:28px 20px;gap:20px}
  .chip{height:40px;font-size:13px;padding:0 14px}
  .faq-item summary{font-size:16px;padding:16px 18px}
  .faq-body{padding:0 18px 18px}
  .form-card{padding:20px}
  .footer-grid{grid-template-columns:1fr 1fr;padding:40px 0 24px}
  .footer-brand{grid-column:1 / -1}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:390px){
  .logo-text{font-size:16px}
  .page-head h1{font-size:28px}
  .footer-grid{grid-template-columns:1fr}
  .chip{width:100%;justify-content:center}
}