/* roulang page: index */
:root{
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --ink:#14131A;
  --ink-2:#5C5867;
  --line:#E4E0D8;
  --accent:#C9F24D;
  --accent-2:#5B4BFF;
  --warn:#FF6B4A;
  --on-dark:#F6F4EF;
  --on-dark-2:#A8A4B3;
  --radius:12px;
  --radius-sm:10px;
  --pill:999px;
  --shadow-sm:0 1px 2px rgba(20,19,26,.05);
  --shadow-lg:0 20px 44px -28px rgba(20,19,26,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-h:68px;
  --gutter:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius);}
a{color:var(--accent-2);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--ink);}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;color:var(--ink);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
figure{margin:0;}
::selection{background:var(--accent);color:var(--ink);}

.wrap{width:100%;max-width:1240px;margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter);}

/* ---------- 通用区块节奏 ---------- */
.section{padding:104px 0;}
.section-tight{padding:80px 0;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{margin:14px 0 16px;font-size:clamp(26px,3.4vw,42px);line-height:1.2;font-weight:700;}
.section-head p{color:var(--ink-2);font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--ink-2);
  text-transform:none;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px;display:inline-block;}
.on-dark .eyebrow{color:var(--on-dark-2);}
.on-dark h2,.on-dark h3{color:var(--on-dark);}

/* ---------- 按钮 ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--pill);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  text-decoration:none;white-space:nowrap;
  transition:background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.btn-x:focus-visible{outline:3px solid rgba(91,75,255,.45);outline-offset:2px;}
.btn-accent{background:var(--accent);color:var(--ink);border-color:var(--accent);}
.btn-accent:hover{background:var(--ink);color:var(--accent);border-color:var(--ink);transform:translateY(-2px);}
.btn-ink{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ink:hover{background:var(--accent);color:var(--ink);border-color:var(--accent);transform:translateY(-2px);}
.btn-light{background:transparent;color:var(--on-dark);border-color:rgba(246,244,239,.42);}
.btn-light:hover{background:var(--accent);color:var(--ink);border-color:var(--accent);transform:translateY(-2px);}
.btn-sm-x{height:40px;padding:0 20px;font-size:14px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--bg);
  border-bottom:1px solid transparent;
  transition:background-color .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{
  background:#fff;
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px -24px rgba(20,19,26,.6);
}
.nav-inner{display:flex;align-items:center;gap:20px;height:var(--nav-h);}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--ink);font-weight:800;font-size:16px;letter-spacing:-.01em;}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:28px;height:28px;border-radius:9px;background:var(--ink);color:var(--accent);
  display:grid;place-items:center;font-size:13px;font-weight:800;flex-shrink:0;
}
.nav-channels{display:flex;align-items:center;gap:22px;margin-left:6px;}
.nav-link-x{
  position:relative;display:inline-block;
  font-size:14px;font-weight:500;color:var(--ink-2);
  padding:6px 0;white-space:nowrap;
}
.nav-link-x::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-link-x:hover{color:var(--ink);}
.nav-link-x:hover::after{transform:scaleX(1);}
.nav-link-x.active{color:var(--accent-2);font-weight:600;}
.nav-link-x.active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-search{position:relative;width:196px;}
.nav-search input{
  width:100%;height:38px;border-radius:var(--pill);
  border:1px solid var(--line);background:#fff;
  padding:0 14px 0 38px;font-size:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search input::placeholder{color:#A9A4B2;}
.nav-search input:focus{outline:none;border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(91,75,255,.15);}
.nav-search svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);width:15px;height:15px;stroke:#9C97A6;fill:none;stroke-width:2;pointer-events:none;}
.nav-ghost{font-size:14px;font-weight:600;color:var(--ink-2);padding:6px 4px;}
.nav-ghost:hover{color:var(--ink);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:17px;height:2px;background:var(--ink);border-radius:2px;transition:transform .24s var(--ease),opacity .24s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-panel{
  display:none;background:#fff;border-bottom:1px solid var(--line);
  padding:14px var(--gutter) 22px;
}
.mobile-panel.open{display:block;}
.mobile-panel a{display:block;padding:12px 0;font-size:15px;color:var(--ink);border-bottom:1px solid var(--line);}
.mobile-panel a:last-of-type{border-bottom:none;}
.mobile-panel a.active{color:var(--accent-2);font-weight:600;}
.mobile-panel .mobile-cta{margin-top:16px;display:flex;gap:12px;}
.mobile-panel .mobile-cta .btn-x{flex:1;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--ink);}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  transform:scale(1.03);
}
.hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(102deg,rgba(20,19,26,.90) 0%,rgba(20,19,26,.76) 46%,rgba(20,19,26,.62) 100%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center;
  padding-top:104px;padding-bottom:104px;
}
.hero-copy > *{animation:fadeUp .42s var(--ease) both;}
.hero-copy > *:nth-child(1){animation-delay:.04s;}
.hero-copy > *:nth-child(2){animation-delay:.10s;}
.hero-copy > *:nth-child(3){animation-delay:.16s;}
.hero-copy > *:nth-child(4){animation-delay:.22s;}
.hero-copy > *:nth-child(5){animation-delay:.28s;}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:none;}}
.hero-kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--accent);
  border:1px solid rgba(201,242,77,.4);border-radius:var(--pill);
  padding:6px 16px;margin-bottom:26px;
}
.hero h1{
  color:var(--on-dark);
  font-size:clamp(40px,6vw,72px);
  font-weight:800;line-height:1.06;letter-spacing:-.02em;
  margin-bottom:24px;
}
.hero h1 em{font-style:normal;color:var(--accent);}
.hero-sub{color:#D8D5E0;font-size:17px;line-height:1.85;max-width:560px;margin-bottom:34px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;}
.hero-stats li{
  display:flex;align-items:baseline;gap:8px;
  border:1px solid rgba(246,244,239,.22);border-radius:var(--pill);
  padding:8px 18px;font-size:13px;color:var(--on-dark-2);
}
.hero-stats li strong{color:var(--accent);font-size:16px;font-weight:800;letter-spacing:-.01em;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;
  box-shadow:0 40px 70px -34px rgba(0,0,0,.85);
  border:1px solid rgba(246,244,239,.14);
}
.hero-media::after{
  content:"";position:absolute;left:-18px;bottom:-18px;width:120px;height:120px;
  border-radius:16px;background:var(--accent);opacity:.9;z-index:-1;
}

/* ---------- Bento 频道入口 ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:20px;}
.bento-card{
  grid-column:span 6;
  position:relative;display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.bento-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#D6D1C6;}
.bento-card.span-7{grid-column:span 7;}
.bento-card.span-5{grid-column:span 5;}
.bento-card.span-12{grid-column:span 12;}
.bento-card .bento-num{
  font-size:13px;font-weight:700;color:var(--ink-2);letter-spacing:.1em;margin-bottom:18px;
}
.bento-card h3{font-size:22px;font-weight:700;margin-bottom:12px;}
.bento-card p{color:var(--ink-2);font-size:15px;line-height:1.8;max-width:460px;}
.bento-meta{display:flex;align-items:center;gap:12px;margin-top:24px;flex-wrap:wrap;}
.tag-pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--pill);
  background:#F0EDE5;color:var(--ink-2);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.tag-pill.accent{background:var(--accent);color:var(--ink);}
.tag-pill.line{background:transparent;border:1px solid var(--line);color:var(--ink-2);}
.bento-link{font-size:14px;font-weight:600;color:var(--accent-2);display:inline-flex;align-items:center;gap:6px;}
.bento-card:hover .bento-link{gap:11px;}
.bento-cover{
  margin-top:28px;width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-sm);
  transition:transform .5s var(--ease);
}
.bento-card:hover .bento-cover{transform:scale(1.03);}
.bento-card.is-dark{background:var(--ink);border-color:var(--ink);}
.bento-card.is-dark h3{color:var(--on-dark);}
.bento-card.is-dark p{color:var(--on-dark-2);}
.bento-card.is-dark .bento-num{color:var(--on-dark-2);}
.bento-card.is-dark .bento-link{color:var(--accent);}
.bento-card.is-dark .tag-pill{background:rgba(246,244,239,.12);color:var(--on-dark-2);}

/* ---------- 深色数据带 ---------- */
.dark-band{background:var(--ink);color:var(--on-dark);}
.dark-band .section-head p{color:var(--on-dark-2);}
.metric-row{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid rgba(246,244,239,.14);
}
.metric{
  padding:38px 30px 30px 0;
  border-right:1px solid rgba(246,244,239,.14);
}
.metric:last-child{border-right:none;}
.metric strong{
  display:block;font-size:clamp(36px,4.4vw,56px);font-weight:800;line-height:1.05;
  letter-spacing:-.03em;color:var(--accent);margin-bottom:12px;
}
.metric span{display:block;font-size:15px;color:var(--on-dark);font-weight:600;margin-bottom:6px;}
.metric small{display:block;font-size:13px;line-height:1.7;color:var(--on-dark-2);}

/* ---------- 精选内容（不对称双列） ---------- */
.feature-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:28px;align-items:start;}
.feature-main{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.feature-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.feature-main img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;transition:transform .6s var(--ease);}
.feature-main:hover img{transform:scale(1.04);}
.feature-main .feature-body{padding:30px;}
.feature-main h3{font-size:24px;margin:14px 0 12px;}
.feature-main p{color:var(--ink-2);font-size:15px;}
.feature-side{display:grid;gap:20px;}
.feature-item{
  display:grid;grid-template-columns:132px 1fr;gap:20px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;box-shadow:var(--shadow-sm);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.feature-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#D6D1C6;}
.feature-item img{width:132px;height:96px;object-fit:cover;border-radius:var(--radius-sm);}
.feature-item h4{font-size:17px; font-weight:600;margin-bottom:8px;transition:color .2s var(--ease);}
.feature-item:hover h4{color:var(--accent-2);}
.feature-item p{font-size:13px;color:var(--ink-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.feature-item time{font-size:12px;color:rgba(20,19,26,.55);letter-spacing:.02em;}

/* ---------- 方案说明（左文右图） ---------- */
.split{display:grid;grid-template-columns:1fr 1.05fr;gap:64px;align-items:center;}
.split-media{position:relative;}
.split-media img{width:100%;aspect-ratio:5/4;object-fit:cover;border-radius:16px;box-shadow:var(--shadow-lg);}
.split-media .split-tag{
  position:absolute;top:20px;left:20px;
  background:var(--accent);color:var(--ink);font-size:12px;font-weight:700;
  border-radius:var(--pill);padding:6px 14px;letter-spacing:.03em;
}
.check-list{margin-top:26px;display:grid;gap:16px;}
.check-list li{display:grid;grid-template-columns:22px 1fr;gap:14px;align-items:start;font-size:15px;color:var(--ink-2);}
.check-list li b{display:block;color:var(--ink);font-weight:600;font-size:15px;margin-bottom:2px;}
.check-mark{
  width:22px;height:22px;border-radius:50%;background:var(--accent);color:var(--ink);
  display:grid;place-items:center;font-size:12px;font-weight:800;margin-top:6px;
}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);position:relative;}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:26px 56px 26px 22px;
  font-size:18px;font-weight:600;color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:26px;bottom:26px;width:3px;border-radius:3px;
  background:var(--accent);transform:scaleY(0);transform-origin:top;
  transition:transform .24s var(--ease);
}
.faq-item summary::after{
  content:"";position:absolute;right:20px;top:50%;
  width:9px;height:9px;border-right:2px solid var(--ink-2);border-bottom:2px solid var(--ink-2);
  transform:translateY(-70%) rotate(45deg);
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.faq-item[open] summary{color:var(--accent-2);}
.faq-item[open] summary::before{transform:scaleY(1);}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);border-color:var(--accent-2);}
.faq-item summary:hover{color:var(--accent-2);}
.faq-body{padding:0 56px 28px 22px;color:var(--ink-2);font-size:15.5px;line-height:1.85;}

/* ---------- 最新发布（CMS 列表） ---------- */
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.info-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#D6D1C6;}
.info-link{display:flex;flex-direction:column;height:100%;padding:26px;color:inherit;}
.info-link:hover{color:inherit;}
.info-badge{
  align-self:flex-start;display:inline-flex;align-items:center;height:24px;padding:0 11px;
  border-radius:var(--pill);background:#F0EDE5;color:var(--ink-2);
  font-size:12px;font-weight:600;margin-bottom:16px;
}
.info-title{font-size:18px;font-weight:600;line-height:1.55;margin-bottom:12px;transition:color .2s var(--ease);}
.info-card:hover .info-title{color:var(--accent-2);}
.info-sum{
  color:var(--ink-2);font-size:14px;line-height:1.75;margin-bottom:20px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.info-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:16px;border-top:1px dashed var(--line);
}
.info-meta time{font-size:12.5px;color:rgba(20,19,26,.55);letter-spacing:.03em;font-variant-numeric:tabular-nums;}
.info-more{font-size:13px;font-weight:600;color:var(--accent-2);display:inline-flex;align-items:center;gap:5px;transition:gap .24s var(--ease);}
.info-card:hover .info-more{gap:10px;}
.empty-state{
  grid-column:1/-1;text-align:center;padding:64px 24px;
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius);
}
.empty-state strong{display:block;font-size:17px;margin-bottom:8px;}
.empty-state p{color:var(--ink-2);font-size:14.5px;}

/* ---------- 联系 CTA ---------- */
.cta-grid{display:grid;grid-template-columns:1fr 1.02fr;gap:64px;align-items:start;}
.cta-copy p{color:var(--on-dark-2);margin-top:18px;font-size:15.5px;}
.cta-points{margin-top:30px;display:grid;gap:14px;}
.cta-points li{display:flex;gap:12px;align-items:flex-start;color:var(--on-dark);font-size:15px;}
.cta-points li i{
  width:6px;height:6px;border-radius:50%;background:var(--accent);
  display:inline-block;margin-top:11px;flex-shrink:0;
}
.form-card{
  background:#1D1B25;border:1px solid rgba(246,244,239,.14);border-radius:16px;padding:34px;
}
.form-card h3{color:var(--on-dark);font-size:20px;margin-bottom:8px;}
.form-card .form-hint{color:var(--on-dark-2);font-size:13.5px;margin-bottom:24px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--on-dark);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;background:#14131A;border:1px solid rgba(246,244,239,.18);
  border-radius:var(--radius-sm);padding:0 16px;height:48px;color:var(--on-dark);
  font-size:14.5px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{height:112px;padding:13px 16px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:#7A7586;}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(91,75,255,.28);}
.field .err{display:none;color:var(--warn);font-size:12.5px;margin-top:7px;}
.field.has-error input,.field.has-error textarea{border-color:var(--warn);}
.field.has-error .err{display:block;}
.form-card .btn-x{width:100%;margin-top:6px;}
.form-note{color:#7A7586;font-size:12.5px;margin-top:14px;text-align:center;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--on-dark);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:44px;padding-bottom:52px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand .brand-mark{background:var(--accent);color:var(--ink);}
.footer-brand span{font-size:16px;font-weight:800;color:var(--on-dark);}
.site-footer p{color:var(--on-dark-2);font-size:14px;line-height:1.85;max-width:320px;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--on-dark);margin-bottom:18px;letter-spacing:.02em;}
.footer-col li{margin-bottom:11px;}
.footer-col a{color:var(--on-dark-2);font-size:14px;}
.footer-col a:hover{color:var(--accent);}
.footer-contact li{color:var(--on-dark-2);font-size:14px;margin-bottom:11px;display:flex;gap:10px;}
.footer-contact li b{color:var(--on-dark);font-weight:600;}
.footer-bottom{
  border-top:1px solid rgba(246,244,239,.14);
  padding:24px 0;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
}
.footer-bottom p{color:#7E7A8C;font-size:13px;max-width:none;}
.footer-bottom .fb-links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom .fb-links a{color:#7E7A8C;font-size:13px;}
.footer-bottom .fb-links a:hover{color:var(--accent);}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:50%;
  background:var(--ink);color:var(--accent);display:grid;place-items:center;
  border:1px solid rgba(246,244,239,.16);cursor:pointer;z-index:1040;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
}
.to-top.show{opacity:1;visibility:visible;transform:none;}
.to-top:hover{background:var(--accent);color:var(--ink);}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .nav-search{width:160px;}
  .nav-channels{gap:16px;}
  .nav-link-x{font-size:13.5px;}
}
@media (max-width:1024px){
  .nav-search{display:none;}
  .split,.cta-grid{gap:44px;}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:36px;}
}
@media (max-width:991px){
  .nav-channels,.nav-ghost{display:none;}
  .nav-toggle{display:flex;}
  .nav-right{gap:10px;}
  .hero-inner{grid-template-columns:1fr;gap:44px;padding-top:72px;padding-bottom:76px;}
  .hero-sub{max-width:none;}
  .bento-card,.bento-card.span-7,.bento-card.span-5{grid-column:span 12;}
  .metric-row{grid-template-columns:repeat(2,1fr);}
  .metric{border-right:none;border-bottom:1px solid rgba(246,244,239,.14);padding:30px 24px 26px 0;}
  .metric:nth-child(odd){border-right:1px solid rgba(246,244,239,.14);padding-right:24px;}
  .feature-grid{grid-template-columns:1fr;}
  .split{grid-template-columns:1fr;gap:38px;}
  .cta-grid{grid-template-columns:1fr;}
  .info-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:767px){
  :root{--gutter:18px;}
  .section{padding:64px 0;}
  .section-tight{padding:56px 0;}
  .section-head{margin-bottom:30px;}
  .hero-inner{padding-top:56px;padding-bottom:60px;}
  .hero-mask{background:linear-gradient(160deg,rgba(20,19,26,.92) 0%,rgba(20,19,26,.80) 60%,rgba(20,19,26,.78) 100%);}
  .hero-actions{gap:12px;}
  .hero-actions .btn-x{flex:1;min-width:150px;}
  .hero-media::after{display:none;}
  .bento-card{padding:24px;}
  .feature-item{grid-template-columns:1fr;}
  .feature-item img{width:100%;height:176px;}
  .info-grid{grid-template-columns:1fr;}
  .faq-item summary{padding:22px 44px 22px 18px;font-size:16.5px;}
  .faq-item summary::before{top:22px;bottom:22px;}
  .faq-body{padding:0 44px 24px 18px;font-size:15px;}
  .form-card{padding:26px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .hero h1{font-size:clamp(32px,9vw,42px);}
  .metric-row{grid-template-columns:1fr;}
  .metric,.metric:nth-child(odd){border-right:none;padding-right:0;}
  .btn-x{height:46px;padding:0 20px;font-size:14.5px;}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: article */
:root{
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --ink:#14131A;
  --ink-2:#5C5867;
  --ink-3:#A8A4B3;
  --line:#E4E0D8;
  --accent:#C9F24D;
  --accent-2:#5B4BFF;
  --warn:#FF6B4A;
  --radius:12px;
  --radius-sm:10px;
  --pill:999px;
  --shadow-sm:0 1px 2px rgba(20,19,26,.05);
  --shadow-md:0 8px 24px -18px rgba(20,19,26,.45);
  --shadow-lg:0 20px 44px -28px rgba(20,19,26,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --wrap:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--accent-2);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--ink);}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.2;color:var(--ink);letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--accent-2);outline-offset:3px;border-radius:4px;}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px;width:100%;}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;}

/* ---------- 按钮 / 徽章 ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--pill);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;white-space:nowrap;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.btn-x:active{transform:translateY(1px);}
.btn-accent{background:var(--accent);color:var(--ink);border-color:var(--accent);}
.btn-accent:hover{background:var(--ink);color:var(--accent);border-color:var(--ink);}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-outline:hover{background:var(--ink);color:#F6F4EF;border-color:var(--ink);}
.btn-darkline{background:transparent;color:#F6F4EF;border-color:rgba(246,244,239,.35);}
.btn-darkline:hover{background:var(--accent);color:var(--ink);border-color:var(--accent);}
.btn-sm-x{height:38px;padding:0 18px;font-size:14px;}

.badge-x{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--pill);
  font-size:12.5px;font-weight:600;line-height:1.4;letter-spacing:.02em;
}
.badge-accent{background:var(--accent);color:var(--ink);}
.badge-soft{background:rgba(91,75,255,.1);color:var(--accent-2);}
.badge-dark{background:rgba(246,244,239,.12);color:#F6F4EF;border:1px solid rgba(246,244,239,.22);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1035;
  background:rgba(246,244,239,.9);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.site-header.scrolled{background:#FFFFFF;border-bottom-color:var(--line);box-shadow:0 10px 30px -24px rgba(20,19,26,.6);}
.header-inner{display:flex;align-items:center;gap:26px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:30px;height:30px;border-radius:9px;background:var(--ink);color:var(--accent);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;letter-spacing:0;
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.02em;white-space:nowrap;}
.nav-channels{display:flex;align-items:center;gap:22px;margin-left:8px;}
.nav-link-x{
  position:relative;padding:6px 0;font-size:15px;font-weight:500;color:var(--ink-2);
  white-space:nowrap;
}
.nav-link-x::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;border-radius:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .28s var(--ease);
}
.nav-link-x:hover{color:var(--ink);}
.nav-link-x:hover::after{transform:scaleX(1);}
.nav-link-x.active{color:var(--accent-2);font-weight:600;}
.nav-link-x.active::after{transform:scaleX(1);}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 14px;border-radius:var(--pill);
  background:#FFFFFF;border:1px solid var(--line);
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.search-box i{color:var(--ink-3);font-size:13px;}
.search-box input{
  border:0;outline:0;background:transparent;width:170px;
  font-size:14px;color:var(--ink);
}
.search-box input::placeholder{color:var(--ink-3);}
.search-box:focus-within{border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(91,75,255,.14);}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:var(--pill);
  background:#FFFFFF;border:1px solid var(--line);color:var(--ink);
  cursor:pointer;transition:background .24s var(--ease),color .24s var(--ease);
}
.nav-toggle:hover{background:var(--ink);color:var(--accent);}

/* 移动端抽屉 */
.offcanvas.mobile-drawer{background:var(--bg);color:var(--ink);width:320px;border-left:1px solid var(--line);}
.mobile-drawer .offcanvas-header{border-bottom:1px solid var(--line);}
.mobile-drawer .offcanvas-title{font-size:16px;font-weight:700;}
.mobile-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px;}
.mobile-nav a{
  display:block;padding:12px 14px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:500;color:var(--ink);
  transition:background .22s var(--ease),color .22s var(--ease);
}
.mobile-nav a:hover{background:#FFFFFF;}
.mobile-nav a.active{background:var(--ink);color:var(--accent);}
.search-box-mobile{width:100%;margin-bottom:18px;}
.search-box-mobile input{width:100%;}

/* ---------- 文章头部 ---------- */
.article-hero{position:relative;background:var(--ink);color:#F6F4EF;overflow:hidden;}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  opacity:.3;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(185deg,rgba(20,19,26,.74) 0%,rgba(20,19,26,.94) 100%);
}
.article-hero .wrap{position:relative;z-index:2;padding-top:30px;padding-bottom:54px;}
.breadcrumb-x{display:flex;align-items:center;gap:9px;flex-wrap:wrap;font-size:13.5px;color:var(--ink-3);}
.breadcrumb-x a{color:var(--ink-3);}
.breadcrumb-x a:hover{color:var(--accent);}
.breadcrumb-x .sep{opacity:.5;}
.breadcrumb-x .current{color:#F6F4EF;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-hero-top{margin-top:34px;max-width:900px;}
.article-hero .badge-accent{margin-bottom:18px;}
.article-h1{
  font-size:clamp(30px,4.2vw,50px);
  font-weight:800;line-height:1.16;letter-spacing:-.02em;color:#F6F4EF;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  margin-top:26px;font-size:13.5px;color:var(--ink-3);
}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:8px;}
.meta-row .meta-item i{font-size:13px;color:var(--accent);}
.meta-row .meta-item b{color:#F6F4EF;font-weight:600;}

/* ---------- 正文布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 312px;
  gap:56px;align-items:start;
  padding:72px 0 0;
}
.article-main{max-width:760px;min-width:0;}
.article-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:36px 40px;box-shadow:var(--shadow-sm);
}
.article-body{font-size:16px;line-height:1.85;color:#26242E;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.4em;}
.article-body h2{
  position:relative;font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.3;
  margin:2.2em 0 .9em;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;background:var(--accent);
}
.article-body h3{font-size:20px;font-weight:600;margin:1.8em 0 .7em;}
.article-body h4{font-size:17px;font-weight:600;margin:1.6em 0 .6em;}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.5em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:.5em 0;}
.article-body a{color:var(--accent-2);border-bottom:1px solid rgba(91,75,255,.32);}
.article-body a:hover{color:var(--ink);border-bottom-color:var(--ink);}
.article-body img{border-radius:var(--radius);margin:26px auto;box-shadow:var(--shadow-sm);}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13.5px;color:var(--ink-2);text-align:center;margin-top:10px;}
.article-body blockquote{
  margin:26px 0;padding:18px 24px;border-left:3px solid var(--accent);
  background:#FBFAF7;border-radius:0 var(--radius) var(--radius) 0;
  color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0;}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em;
}
.article-body p code,.article-body li code{background:#EDEAE3;color:#2F3A05;padding:2px 6px;border-radius:6px;}
.article-body pre{
  background:var(--ink);color:#EDEAE3;border-radius:var(--radius);
  padding:20px 22px;margin:26px 0;overflow-x:auto;font-size:14px;line-height:1.75;
}
.article-body pre code{background:none;color:inherit;padding:0;}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top;}
.article-body th{background:#EFECE5;font-weight:600;}

.article-foot{
  margin-top:34px;padding-top:26px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;justify-content:space-between;
}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;}
.tag-item{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--pill);
  background:#F6F4EF;border:1px solid var(--line);font-size:13px;color:var(--ink-2);
}
.back-link{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:8px;}

.empty-state{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:64px 32px;text-align:center;box-shadow:var(--shadow-sm);
}
.empty-mark{
  width:64px;height:64px;margin:0 auto 20px;border-radius:20px;
  background:#F6F4EF;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-size:24px;color:var(--ink-2);
}
.empty-state h2{font-size:22px;margin-bottom:12px;}
.empty-state p{color:var(--ink-2);font-size:15px;max-width:420px;margin:0 auto 24px;}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:92px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 22px 20px;box-shadow:var(--shadow-sm);
}
.side-card h3{
  font-size:14px;font-weight:700;letter-spacing:.04em;color:var(--ink);
  margin-bottom:14px;display:flex;align-items:center;gap:8px;
}
.side-card h3::before{content:"";width:10px;height:10px;border-radius:3px;background:var(--accent);}
.side-list li{border-bottom:1px solid var(--line);}
.side-list li:last-child{border-bottom:0;}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;font-size:14.5px;color:var(--ink-2);line-height:1.5;
}
.side-list a i{font-size:12px;color:var(--ink-3);transition:transform .24s var(--ease),color .24s var(--ease);}
.side-list a:hover{color:var(--accent-2);}
.side-list a:hover i{transform:translateX(4px);color:var(--accent-2);}
.side-note{font-size:13.5px;color:var(--ink-2);line-height:1.75;margin-bottom:16px;}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0 0;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head .badge-soft{margin-bottom:16px;}
.section-head h2{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.24;}
.section-head p{margin-top:16px;color:var(--ink-2);font-size:15.5px;line-height:1.85;}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;margin-bottom:40px;}

/* ---------- 相关推荐 / 频道卡 ---------- */
.card-grid{display:grid;gap:26px;}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr));}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr));}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#D7D2C7;}
.card-media{position:relative;overflow:hidden;aspect-ratio:16/10;background:#EDEAE3;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.post-card:hover .card-media img{transform:scale(1.04);}
.card-media .badge-x{position:absolute;left:12px;top:12px;}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:18px;font-weight:600;line-height:1.45;}
.card-body p{font-size:14px;color:var(--ink-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--ink-2);
}
.card-foot .go{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--ink);}
.post-card:hover .card-foot .go{color:var(--accent-2);}
.post-card:hover .card-foot .go i{transform:translateX(4px);}
.card-foot .go i{transition:transform .24s var(--ease);font-size:12px;}
.post-card > a.card-link{position:absolute;inset:0;}
.channel-card{position:relative;display:flex;flex-direction:column;justify-content:flex-end;
  min-height:230px;border-radius:var(--radius);overflow:hidden;color:#F6F4EF;
  padding:24px;border:1px solid var(--line);box-shadow:var(--shadow-sm);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);}
.channel-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;}
.channel-card::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(20,19,26,.18) 0%,rgba(20,19,26,.88) 100%);
}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);color:#F6F4EF;}
.channel-card .cc-inner{position:relative;z-index:2;}
.channel-card h3{color:#F6F4EF;font-size:19px;font-weight:700;margin-bottom:8px;}
.channel-card p{color:rgba(246,244,239,.78);font-size:13.5px;line-height:1.7;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;margin-top:96px;background:var(--ink);color:#F6F4EF;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-3.png) center/cover no-repeat;opacity:.22;
}
.cta-band .wrap{position:relative;z-index:2;padding:88px 24px;}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start;}
.cta-copy h2{color:#F6F4EF;font-size:clamp(26px,3vw,38px);line-height:1.22;}
.cta-copy p{margin-top:18px;color:var(--ink-3);font-size:15.5px;line-height:1.85;max-width:460px;}
.cta-points{margin-top:28px;display:flex;flex-direction:column;gap:12px;}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:#EDEAE3;}
.cta-points li i{color:var(--accent);font-size:13px;margin-top:7px;}
.contact-form{display:flex;flex-direction:column;gap:16px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:#EDEAE3;margin-bottom:8px;}
.field input,.field textarea{
  width:100%;height:48px;padding:0 16px;border-radius:var(--radius-sm);
  background:rgba(246,244,239,.06);border:1px solid rgba(246,244,239,.2);
  color:#F6F4EF;font-size:14.5px;outline:0;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease);
}
.field textarea{height:120px;padding:12px 16px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:rgba(168,164,179,.8);}
.field input:focus,.field textarea:focus{
  border-color:var(--accent-2);background:rgba(246,244,239,.1);
  box-shadow:0 0 0 3px rgba(91,75,255,.28);
}
.form-tip{font-size:13px;color:var(--ink-3);min-height:20px;}
.form-tip.ok{color:var(--accent);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#F6F4EF;padding:72px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;margin-bottom:16px;color:#F6F4EF;}
.footer-brand .brand-mark{background:var(--accent);color:var(--ink);width:28px;height:28px;border-radius:8px;font-size:14px;}
.site-footer p{color:var(--ink-3);font-size:14px;line-height:1.8;}
.footer-col h4{font-size:15px;color:#F6F4EF;font-weight:600;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{color:var(--ink-3);font-size:14px;}
.footer-col a:hover{color:var(--accent);}
.footer-contact li{color:var(--ink-3);font-size:14px;line-height:1.7;margin-bottom:12px;}
.footer-contact b{display:block;color:#F6F4EF;font-weight:600;font-size:13px;margin-bottom:2px;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(246,244,239,.14);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
}
.footer-bottom p{font-size:13px;color:var(--ink-3);}
.fb-links{display:flex;flex-wrap:wrap;gap:20px;}
.fb-links a{font-size:13px;color:var(--ink-3);}
.fb-links a:hover{color:var(--accent);}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;z-index:1040;
  width:46px;height:46px;border-radius:var(--pill);
  background:var(--ink);color:var(--accent);border:1px solid var(--ink);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s var(--ease),background .3s var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--accent);color:var(--ink);border-color:var(--accent);}

/* ---------- 入场动效 ---------- */
.fade-up{opacity:0;transform:translateY(12px);animation:fadeUp .6s var(--ease) forwards;}
.fade-up.d1{animation-delay:.06s;}
.fade-up.d2{animation-delay:.12s;}
.fade-up.d3{animation-delay:.18s;}
@keyframes fadeUp{to{opacity:1;transform:translateY(0);}}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  .fade-up{opacity:1;transform:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .nav-channels{gap:16px;}
  .search-box input{width:130px;}
}
@media (max-width:991.98px){
  .wrap{padding:0 20px;}
  .nav-channels,.header-tools .search-box{display:none;}
  .nav-toggle{display:inline-flex;}
  .article-layout{grid-template-columns:1fr;gap:40px;padding:48px 0 0;}
  .article-side{position:static;}
  .article-panel{padding:28px 24px;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-grid{grid-template-columns:1fr;gap:40px;}
  .cta-band .wrap{padding:64px 20px;}
  .section{padding:64px 0 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  body{font-size:15.5px;}
  .header-inner{gap:14px;height:64px;}
  .brand-text{font-size:15.5px;}
  .article-hero::after{background:linear-gradient(185deg,rgba(20,19,26,.8) 0%,rgba(20,19,26,.95) 100%);}
  .article-hero .wrap{padding-top:22px;padding-bottom:40px;}
  .breadcrumb-x .current{max-width:220px;}
  .article-panel{padding:24px 18px;}
  .grid-3,.grid-4{grid-template-columns:1fr;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .to-top{right:16px;bottom:18px;}
}
@media (max-width:575.98px){
  .wrap{padding:0 18px;}
  .article-hero .wrap{padding-bottom:34px;}
  .article-layout{padding-top:36px;}
  .card-media{aspect-ratio:16/11;}
  .btn-x{width:100%;}
  .header-tools .btn-x{width:auto;}
}

/* roulang page: category1 */
:root{
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --ink:#14131A;
  --ink-2:#5C5867;
  --line:#E4E0D8;
  --accent:#C9F24D;
  --accent-2:#5B4BFF;
  --warn:#FF6B4A;
  --ink-soft:#A8A4B3;
  --r-card:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,19,26,.05);
  --sh-2:0 20px 44px -28px rgba(20,19,26,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --maxw:1240px;
  --gap:8px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--accent-2);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--ink);}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;line-height:1.2;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:var(--accent);color:var(--ink);}
:focus-visible{outline:2px solid var(--accent-2);outline-offset:3px;border-radius:4px;}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,244,239,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.scrolled{
  background:var(--surface);
  border-bottom-color:var(--line);
  box-shadow:0 6px 22px -18px rgba(20,19,26,.55);
}
.nav-inner{
  display:flex;align-items:center;gap:20px;
  height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:32px;height:32px;border-radius:9px;
  background:var(--ink);color:var(--accent);
  display:grid;place-items:center;
  font-weight:800;font-size:16px;
  letter-spacing:0;
  flex:0 0 auto;
}
.brand-text{font-weight:800;font-size:17px;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;}
.brand:hover .brand-text{color:var(--accent-2);}

.nav-channels{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto;min-width:0;}
.nav-link-x{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  color:var(--ink-2);
  white-space:nowrap;
  border-radius:var(--r-pill);
}
.nav-link-x::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .28s var(--ease);
}
.nav-link-x:hover{color:var(--ink);}
.nav-link-x:hover::after{transform:scaleX(1);}
.nav-link-x.active{color:var(--accent-2);font-weight:600;}
.nav-link-x.active::after{transform:scaleX(1);}

.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 14px;
  background:rgba(255,255,255,.9);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search i{color:var(--ink-2);font-size:13px;}
.nav-search input{
  border:0;background:transparent;outline:none;
  width:132px;font-size:14px;
}
.nav-search input::placeholder{color:#9C98A6;}
.nav-search:focus-within{border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(91,75,255,.14);}

.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;
  border-radius:var(--r-pill);
  border:1px solid var(--ink);
  background:transparent;
  color:var(--ink);
  font-size:15px;font-weight:600;
  cursor:pointer;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease);
}
.btn-x:hover{background:var(--accent);border-color:var(--accent);color:var(--ink);transform:translateY(-1px);}
.btn-x.ghost{border-color:var(--line);color:var(--ink-2);font-weight:500;}
.btn-x.ghost:hover{border-color:var(--ink);background:transparent;color:var(--ink);}
.btn-x.solid{background:var(--accent);border-color:var(--accent);color:var(--ink);}
.btn-x.solid:hover{background:var(--ink);border-color:var(--ink);color:var(--accent);}
.btn-x.on-dark{border-color:rgba(246,244,239,.45);color:var(--bg);}
.btn-x.on-dark:hover{background:var(--accent);border-color:var(--accent);color:var(--ink);}

.nav-toggle{
  display:none;
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle i{font-size:16px;}

.nav-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:var(--surface);
}
.nav-drawer.open{display:block;}
.nav-drawer .drawer-inner{padding:14px 24px 22px;display:flex;flex-direction:column;gap:2px;}
.nav-drawer .nav-link-x{padding:12px 4px;border-radius:0;border-bottom:1px solid var(--line);font-size:16px;}
.nav-drawer .nav-link-x::after{display:none;}
.nav-drawer .drawer-search{
  margin-top:14px;display:flex;align-items:center;gap:8px;
  height:48px;padding:0 16px;border:1px solid var(--line);border-radius:12px;background:#FAF9F6;
}
.nav-drawer .drawer-search input{border:0;background:transparent;outline:none;width:100%;}

/* ---------- breadcrumb ---------- */
.crumb-bar{padding:22px 0 0;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);}
.crumb a{color:var(--ink-2);}
.crumb a:hover{color:var(--accent-2);}
.crumb .sep{color:#C4C0B8;}
.crumb .cur{color:var(--ink);font-weight:600;}

/* ---------- hero ---------- */
.hero-cat{
  position:relative;
  margin-top:22px;
  border-radius:20px;
  overflow:hidden;
  background-image:linear-gradient(102deg,rgba(20,19,26,.86) 0%,rgba(20,19,26,.7) 52%,rgba(20,19,26,.42) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  color:var(--bg);
}
.hero-cat .hero-inner{padding:56px 48px 52px;max-width:820px;}
.tag-x{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;
  border-radius:var(--r-pill);
  border:1px solid rgba(201,242,77,.6);
  background:rgba(201,242,77,.12);
  color:var(--accent);
  font-size:13px;font-weight:600;letter-spacing:.02em;
  margin-bottom:20px;
}
.hero-cat h1{
  font-size:clamp(32px,4.4vw,52px);
  font-weight:800;line-height:1.08;letter-spacing:-.02em;
  color:#F6F4EF;
}
.hero-cat .hero-sub{
  margin-top:18px;
  font-size:17px;line-height:1.8;
  color:#DDD9D0;
  max-width:660px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-metrics{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px;}
.chip-x{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:var(--r-pill);
  background:rgba(246,244,239,.1);
  border:1px solid rgba(246,244,239,.2);
  color:#EFEDE7;font-size:13px;
}
.chip-x b{color:var(--accent);font-weight:700;}

/* ---------- sections ---------- */
.sec{padding:96px 0 0;}
.sec.tight{padding-top:72px;}
.sec-head{max-width:720px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--accent-2);
  letter-spacing:.08em;text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);}
.sec-head h2{font-size:clamp(26px,3.2vw,38px);font-weight:700;}
.sec-head p{margin-top:14px;color:var(--ink-2);font-size:16px;}

/* ---------- intro ---------- */
.intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:start;}
.intro-copy p+p{margin-top:18px;color:var(--ink-2);}
.intro-copy p{font-size:16.5px;}
.intro-facts{
  border:1px solid var(--line);background:var(--surface);
  border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);
}
.intro-facts h3{font-size:19px;font-weight:700;margin-bottom:18px;}
.fact-row{display:flex;gap:14px;padding:14px 0;border-top:1px solid var(--line);}
.fact-row:first-of-type{border-top:0;padding-top:0;}
.fact-ico{
  width:36px;height:36px;border-radius:10px;flex:0 0 auto;
  background:rgba(201,242,77,.32);color:var(--ink);
  display:grid;place-items:center;font-size:15px;
}
.fact-row h4{font-size:15px;font-weight:700;margin-bottom:2px;}
.fact-row p{font-size:14px;color:var(--ink-2);line-height:1.7;}

/* ---------- card grid ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.card-x{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.card-x:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D6D1C6;}
.card-media{position:relative;overflow:hidden;aspect-ratio:16/10;background:#EDEAE2;}
.card-media.tall{aspect-ratio:4/3;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.card-x:hover .card-media img{transform:scale(1.04);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.badge-x{
  display:inline-flex;align-items:center;gap:6px;
  align-self:flex-start;
  padding:3px 11px;border-radius:var(--r-pill);
  background:#F1EFE8;color:var(--ink-2);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-x.lime{background:rgba(201,242,77,.42);color:#3B3F12;}
.badge-x.violet{background:rgba(91,75,255,.1);color:var(--accent-2);}
.card-x h3{font-size:18px;font-weight:700;line-height:1.45;}
.card-x p{font-size:14.5px;color:var(--ink-2);line-height:1.75;}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:#8E8A97;
}
.card-foot .go{display:inline-flex;align-items:center;gap:6px;color:var(--accent-2);font-weight:600;}
.card-foot .go i{transition:transform .24s var(--ease);}
.card-x:hover .card-foot .go i{transform:translateX(4px);}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:st;}
.step-x{
  position:relative;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px 24px;box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.step-x:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.step-x::before{
  counter-increment:st;content:"0" counter(st);
  display:block;font-size:13px;font-weight:800;letter-spacing:.12em;
  color:var(--accent-2);margin-bottom:14px;
}
.step-x h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.step-x p{font-size:14.5px;color:var(--ink-2);line-height:1.75;}

/* ---------- dark band ---------- */
.dark-band{
  margin-top:96px;
  background:var(--ink);color:var(--bg);
  padding:76px 0;
}
.dark-band .band-head{max-width:640px;margin-bottom:48px;}
.dark-band .band-head h2{font-size:clamp(26px,3.2vw,38px);color:#F6F4EF;}
.dark-band .band-head p{margin-top:14px;color:var(--ink-soft);font-size:16px;}
.stat-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;}
.stat-x{padding:0 28px;border-left:1px solid rgba(246,244,239,.14);}
.stat-x:first-child{border-left:0;padding-left:0;}
.stat-x .num{
  font-size:clamp(34px,4.2vw,54px);font-weight:800;line-height:1;
  color:var(--accent);letter-spacing:-.03em;
}
.stat-x .lbl{margin-top:12px;font-size:14.5px;color:#CFCBD6;line-height:1.7;}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr 1.05fr;gap:52px;align-items:center;}
.split .pic{
  border-radius:16px;overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-1);aspect-ratio:5/4;background:#EDEAE2;
}
.split .pic img{width:100%;height:100%;object-fit:cover;}
.split h2{font-size:clamp(26px,3.2vw,36px);font-weight:700;margin-bottom:16px;}
.split p{color:var(--ink-2);font-size:16px;}
.check-list{margin-top:24px;display:flex;flex-direction:column;gap:14px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;}
.check-list i{color:var(--accent-2);margin-top:6px;font-size:13px;flex:0 0 auto;}
.check-list span{color:var(--ink-2);}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;}
.faq-item{border-top:1px solid var(--line);}
.faq-item:last-child{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 0 24px 0;
  font-size:17.5px;font-weight:600;
  position:relative;
  transition:color .2s var(--ease),padding .24s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:-18px;top:26px;bottom:26px;width:3px;
  background:var(--accent);border-radius:2px;
  transform:scaleY(0);transform-origin:top;transition:transform .28s var(--ease);
}
.faq-item summary:hover{color:var(--accent-2);}
.faq-item summary .chev{color:var(--ink-2);font-size:14px;transition:transform .3s var(--ease);}
.faq-item[open] summary{padding-left:12px;}
.faq-item[open] summary::before{transform:scaleY(1);}
.faq-item[open] summary .chev{transform:rotate(180deg);color:var(--accent-2);}
.faq-body{padding:0 0 26px 12px;color:var(--ink-2);font-size:15.5px;line-height:1.85;max-width:760px;}

/* ---------- cta ---------- */
.cta-band{margin-top:96px;background:var(--ink);color:var(--bg);padding:80px 0;}
.cta-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:start;}
.cta-band h2{font-size:clamp(26px,3.2vw,38px);color:#F6F4EF;}
.cta-band .lead{margin-top:16px;color:#C9C5D0;font-size:16px;max-width:520px;}
.cta-side{margin-top:30px;display:flex;flex-wrap:wrap;gap:12px;}
.form-card{
  background:#1B1A22;border:1px solid rgba(246,244,239,.14);
  border-radius:16px;padding:28px;
}
.form-card h3{font-size:19px;font-weight:700;color:#F6F4EF;margin-bottom:6px;}
.form-card .hint{font-size:13.5px;color:var(--ink-soft);margin-bottom:22px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;color:#C9C5D0;margin-bottom:8px;}
.field input,.field textarea{
  width:100%;background:#23212B;border:1px solid rgba(246,244,239,.16);
  border-radius:10px;color:#F6F4EF;padding:13px 14px;font-size:15px;
  outline:none;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input{height:48px;padding:0 14px;}
.field textarea{min-height:110px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:#7C7887;}
.field input:focus,.field textarea:focus{border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(91,75,255,.25);}
.form-card .btn-x{width:100%;margin-top:6px;}
.form-card .note{margin-top:14px;font-size:12.5px;color:var(--ink-soft);}

/* ---------- footer ---------- */
.site-footer{margin-top:0;background:var(--ink);color:var(--bg);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;margin-bottom:18px;}
.site-footer .brand-mark{background:var(--accent);color:var(--ink);}
.site-footer p{color:#B8B4C1;font-size:14.5px;line-height:1.8;max-width:360px;}
.footer-col h4{font-size:15px;font-weight:700;color:#F6F4EF;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{color:#B8B4C1;font-size:14.5px;}
.footer-col a:hover{color:var(--accent);}
.footer-contact li{color:#B8B4C1;font-size:14.5px;line-height:1.75;}
.footer-contact b{color:#F6F4EF;font-weight:600;margin-right:6px;}
.footer-contact a{color:var(--accent);}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(246,244,239,.13);
  padding:24px 0;display:flex;flex-wrap:wrap;gap:16px;
  align-items:center;justify-content:space-between;
}
.footer-bottom p{color:#8E8A97;font-size:13.5px;max-width:none;}
.fb-links{display:flex;flex-wrap:wrap;gap:20px;}
.fb-links a{color:#B8B4C1;font-size:13.5px;}
.fb-links a:hover{color:var(--accent);}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:70;
  width:46px;height:46px;border-radius:14px;
  background:var(--ink);color:var(--accent);border:0;cursor:pointer;
  display:grid;place-items:center;
  box-shadow:0 14px 30px -16px rgba(20,19,26,.7);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--accent);color:var(--ink);}

/* ---------- fade up ---------- */
.fade-up{opacity:0;transform:translateY(12px);animation:fadeUp .6s var(--ease) forwards;}
.fade-up.d1{animation-delay:.06s;}
.fade-up.d2{animation-delay:.12s;}
.fade-up.d3{animation-delay:.18s;}
@keyframes fadeUp{to{opacity:1;transform:none;}}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
  .fade-up{opacity:1;transform:none;}
}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .nav-search input{width:96px;}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:992px){
  .nav-channels{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:flex;}
  .nav-right .btn-x.ghost{display:none;}
  .intro-grid{grid-template-columns:1fr;gap:32px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-row{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px 0;}
  .stat-x:nth-child(3){border-left:0;padding-left:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .sec{padding-top:72px;}
  .dark-band,.cta-band{margin-top:72px;}
}
@media (max-width:768px){
  .wrap{padding:0 18px;}
  .hero-cat{margin-top:16px;border-radius:16px;}
  .hero-cat{background-image:linear-gradient(160deg,rgba(20,19,26,.92) 0%,rgba(20,19,26,.82) 60%,rgba(20,19,26,.72) 100%),url("/assets/images/backpic/back-1.png");}
  .hero-cat .hero-inner{padding:38px 24px 36px;}
  .hero-sub{font-size:15.5px;}
  .grid-2{grid-template-columns:1fr;}
  .brand-text{font-size:15.5px;}
  .card-x h3{font-size:17px;}
  .cta-band{padding:60px 0;}
  .dark-band{padding:58px 0;}
  .to-top{right:14px;bottom:18px;}
}
@media (max-width:520px){
  .grid-4{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .stat-row{grid-template-columns:1fr;gap:28px 0;}
  .stat-x{border-left:0;padding:0;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .hero-actions .btn-x{width:100%;}
  .crumb{font-size:13px;}
  .faq-item summary{font-size:16px;}
  .faq-item summary::before{left:-12px;}
}

/* roulang page: category2 */
:root{
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --ink:#14131A;
  --ink-2:#5C5867;
  --line:#E4E0D8;
  --accent:#C9F24D;
  --accent-2:#5B4BFF;
  --warn:#FF6B4A;
  --dark-2:#A8A4B3;
  --r-card:12px;
  --r-pill:999px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(20,19,26,.05);
  --sh-2:0 20px 44px -28px rgba(20,19,26,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:var(--accent-2);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--ink);}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;color:var(--ink);font-weight:700;line-height:1.2;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:3px solid rgba(91,75,255,.45);outline-offset:2px;border-radius:6px;}
.wrap{max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-sm{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--ink-2);
  border:1px solid var(--line);background:var(--surface);
  border-radius:var(--r-pill);padding:6px 14px;margin-bottom:18px;
}
.eyebrow i{color:var(--accent-2);}
h1{font-size:clamp(40px,6vw,72px);font-weight:800;line-height:1.06;letter-spacing:-.02em;}
h2{font-size:clamp(26px,3.4vw,42px);font-weight:700;line-height:1.2;}
h3{font-size:21px;font-weight:600;}
.lead{font-size:17px;color:var(--ink-2);line-height:1.9;}
.muted{font-size:13.5px;color:var(--ink-2);line-height:1.7;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(246,244,239,.86);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-stuck{
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 6px 20px -18px rgba(20,19,26,.5);
}
.header-inner{height:var(--nav-h);display:flex;align-items:center;gap:22px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;flex:0 0 auto;}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:30px;height:30px;border-radius:9px;background:var(--ink);color:var(--accent);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;letter-spacing:0;
}
.brand-name{font-size:16.5px;letter-spacing:-.01em;white-space:nowrap;}
.nav-channels{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-link-x{
  position:relative;color:var(--ink-2);font-size:15px;padding:8px 12px;border-radius:8px;
  white-space:nowrap;
}
.nav-link-x::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .28s var(--ease);
}
.nav-link-x:hover{color:var(--ink);}
.nav-link-x:hover::after{transform:scaleX(1);}
.nav-link-x.active{color:var(--accent-2);font-weight:600;}
.nav-link-x.active::after{transform:scaleX(1);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:0 14px;height:40px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search i{color:var(--ink-2);font-size:13px;}
.nav-search input{
  border:0;background:transparent;outline:none;height:100%;width:158px;font-size:14px;color:var(--ink);
}
.nav-search input::placeholder{color:#9C97A6;}
.nav-search:focus-within{border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(91,75,255,.16);}
.btn-ghost{
  color:var(--ink);font-size:15px;padding:8px 14px;border-radius:var(--r-pill);
  border:1px solid transparent;background:transparent;transition:all .2s var(--ease);
}
.btn-ghost:hover{border-color:var(--line);background:#fff;color:var(--ink);}
.btn-accent{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent);color:var(--ink);font-weight:600;font-size:15px;
  border:1px solid var(--accent);border-radius:var(--r-pill);
  padding:9px 20px;transition:all .22s var(--ease);
}
.btn-accent:hover{background:var(--ink);color:var(--accent);border-color:var(--ink);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);align-items:center;justify-content:center;font-size:16px;
}
.nav-toggle:hover{border-color:var(--ink);}
.mobile-panel{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:14px 24px 20px;
}
.mobile-panel.open{display:block;}
.mobile-panel .mp-link{
  display:block;padding:12px 4px;color:var(--ink);font-size:15.5px;border-bottom:1px solid var(--line);
}
.mobile-panel .mp-link.active{color:var(--accent-2);font-weight:600;}
.mobile-panel .mp-search{
  display:flex;align-items:center;gap:10px;margin-top:14px;background:var(--bg);
  border:1px solid var(--line);border-radius:var(--r-pill);padding:0 16px;height:44px;
}
.mobile-panel .mp-search input{border:0;background:transparent;outline:none;width:100%;height:100%;font-size:14px;}

/* ---------- 面包屑 ---------- */
.crumb{padding:22px 0 0;font-size:13.5px;color:var(--ink-2);}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumb li::after{content:"/";margin-left:8px;color:#BDB8C6;}
.crumb li:last-child::after{content:"";}
.crumb a{color:var(--ink-2);}
.crumb a:hover{color:var(--accent-2);}
.crumb .now{color:var(--ink);font-weight:600;}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;margin:20px 0 0;border-radius:20px;overflow:hidden;
  background-image:linear-gradient(100deg,rgba(20,19,26,.86) 0%,rgba(20,19,26,.62) 52%,rgba(20,19,26,.42) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  color:#F6F4EF;
  padding:clamp(38px,5vw,72px) clamp(24px,4vw,56px);
  min-height:400px;display:flex;flex-direction:column;justify-content:center;
}
.cat-hero h1{color:#fff;max-width:14em;}
.cat-hero .cat-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.06em;
  color:var(--ink);background:var(--accent);border-radius:var(--r-pill);
  padding:6px 14px;font-weight:600;margin-bottom:20px;width:max-content;max-width:100%;
}
.cat-hero .cat-sub{color:#DAD7E1;font-size:17px;line-height:1.9;max-width:640px;margin-top:20px;}
.cat-hero .hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.cat-hero .hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:#F6F4EF;
  border:1px solid rgba(246,244,239,.32);border-radius:var(--r-pill);padding:7px 15px;
}
.chip b{color:var(--accent);font-weight:700;}

/* ---------- 按钮 ---------- */
.btn-solid{
  display:inline-flex;align-items:center;gap:9px;background:var(--accent);color:var(--ink);
  border:1px solid var(--accent);border-radius:var(--r-pill);
  padding:13px 26px;font-weight:600;font-size:15.5px;
  transition:all .24s var(--ease);
}
.btn-solid:hover{background:var(--ink);color:var(--accent);border-color:var(--ink);}
.btn-line{
  display:inline-flex;align-items:center;gap:9px;background:transparent;color:var(--ink);
  border:1px solid var(--ink);border-radius:var(--r-pill);
  padding:13px 26px;font-weight:600;font-size:15.5px;
  transition:all .24s var(--ease);
}
.btn-line:hover{background:var(--accent);border-color:var(--accent);color:var(--ink);}
.btn-line-light{
  display:inline-flex;align-items:center;gap:9px;background:transparent;color:#F6F4EF;
  border:1px solid rgba(246,244,239,.45);border-radius:var(--r-pill);
  padding:13px 26px;font-weight:600;font-size:15.5px;transition:all .24s var(--ease);
}
.btn-line-light:hover{background:#F6F4EF;color:var(--ink);border-color:#F6F4EF;}

/* ---------- 通用卡片 ---------- */
.card-x{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;height:100%;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.card-x:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D6D1C7;}
.card-media{position:relative;overflow:hidden;background:#EDEAE3;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease);}
.card-x:hover .card-media img{transform:scale(1.04);}
.ratio-43{aspect-ratio:4/3;}
.ratio-32{aspect-ratio:3/2;}
.ratio-11{aspect-ratio:1/1;}
.card-body{padding:22px 22px 24px;}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;
  color:var(--ink);background:rgba(201,242,77,.4);border:1px solid rgba(201,242,77,.9);
  border-radius:var(--r-pill);padding:3px 11px;margin-bottom:12px;
}
.badge-cat.violet{background:rgba(91,75,255,.1);border-color:rgba(91,75,255,.28);color:var(--accent-2);}
.card-title{font-size:18.5px;font-weight:600;line-height:1.45;margin-bottom:10px;transition:color .2s var(--ease);}
.card-x:hover .card-title{color:var(--accent-2);}
.card-desc{font-size:14.5px;color:var(--ink-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
}
.time-mono{font-size:12.5px;color:rgba(20,19,26,.55);letter-spacing:.02em;font-variant-numeric:tabular-nums;}
.link-arrow{font-size:13.5px;font-weight:600;color:var(--accent-2);display:inline-flex;align-items:center;gap:6px;}
.link-arrow i{transition:transform .22s var(--ease);}
.card-x:hover .link-arrow i{transform:translateX(4px);}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;}

/* ---------- 简介 + 要点条 ---------- */
.intro-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:start;}
.point-list{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line);}
.point-item{
  display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--line);
}
.point-num{
  flex:0 0 auto;width:36px;height:36px;border-radius:10px;background:var(--ink);color:var(--accent);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14.5px;
}
.point-item h3{font-size:17px;margin-bottom:6px;}
.point-item p{font-size:14.5px;color:var(--ink-2);}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:st;}
.step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;position:relative;transition:all .24s var(--ease);box-shadow:var(--sh-1);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.step .st-idx{
  font-size:13px;font-weight:700;color:var(--accent-2);letter-spacing:.1em;margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.step .st-idx::before{
  content:"";width:22px;height:2px;background:var(--accent);border-radius:2px;
}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--ink-2);}
.step .st-bar{margin-top:18px;height:4px;border-radius:4px;background:linear-gradient(90deg,var(--accent), rgba(201,242,77,.25));}

/* ---------- 深色数据带 ---------- */
.band-dark{background:var(--ink);color:#F6F4EF;padding:88px 0;}
.band-dark h2{color:#fff;}
.band-dark .lead{color:var(--dark-2);}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:48px;}
.stat{
  padding:8px 28px;border-left:1px solid rgba(246,244,239,.16);
}
.stat:first-child{border-left:0;padding-left:0;}
.stat-num{
  font-size:clamp(36px,4.4vw,56px);font-weight:800;color:var(--accent);
  line-height:1.05;letter-spacing:-.03em;font-variant-numeric:tabular-nums;
}
.stat-num span{font-size:.42em;font-weight:700;margin-left:6px;color:#F6F4EF;}
.stat-label{margin-top:10px;font-size:13.5px;color:var(--dark-2);line-height:1.7;}

/* ---------- 版本对照 ---------- */
.compare{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:stretch;}
.compare .card-x{display:flex;flex-direction:column;}
.compare .card-x .card-media{flex:0 0 auto;}
.compare .card-body{flex:1 1 auto;}
.spec-list{margin-top:14px;display:flex;flex-direction:column;gap:9px;}
.spec-list li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);line-height:1.75;}
.spec-list i{color:var(--accent-2);margin-top:6px;font-size:12px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.faq-item{border-bottom:1px solid var(--line);position:relative;}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:24px 44px 24px 20px;position:relative;
  font-size:17px;font-weight:600;color:var(--ink);transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:26px;bottom:26px;width:3px;border-radius:3px;
  background:var(--accent);transform:scaleY(0);transform-origin:top;transition:transform .28s var(--ease);
}
.faq-item[open] summary::before{transform:scaleY(1);}
.faq-item summary:hover{color:var(--accent-2);}
.faq-item summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;
  position:absolute;right:14px;top:31px;color:var(--ink-2);transition:transform .28s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(180deg);color:var(--accent-2);}
.faq-answer{padding:0 44px 26px 20px;font-size:15px;color:var(--ink-2);line-height:1.9;}

/* ---------- CTA / 表单 ---------- */
.cta-dark{background:var(--ink);color:#F6F4EF;padding:96px 0;}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.cta-dark h2{color:#fff;}
.cta-dark .lead{color:var(--dark-2);}
.mini-list{margin-top:26px;display:flex;flex-direction:column;gap:12px;}
.mini-list li{display:flex;gap:10px;font-size:14.5px;color:#DAD7E1;}
.mini-list i{color:var(--accent);margin-top:6px;font-size:12px;}
.form-card{
  background:var(--ink);border:1px solid rgba(246,244,239,.18);border-radius:16px;
  padding:28px;
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13.5px;color:var(--dark-2);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;background:#1D1C24;border:1px solid rgba(246,244,239,.2);color:#F6F4EF;
  border-radius:var(--r-input);padding:0 16px;height:48px;outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{height:auto;min-height:118px;padding:14px 16px;line-height:1.75;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:#6E6A7A;}
.field input:focus,.field textarea:focus{border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(91,75,255,.3);}
.field.has-error input,.field.has-error textarea{border-color:var(--warn);}
.field .err{display:none;font-size:12.5px;color:var(--warn);margin-top:7px;}
.field.has-error .err{display:block;}
.form-note{font-size:12.5px;color:var(--dark-2);margin-top:14px;line-height:1.7;}
.form-ok{
  display:none;margin-top:16px;font-size:13.5px;color:var(--accent);
  border:1px solid rgba(201,242,77,.5);border-radius:var(--r-input);padding:12px 14px;
}
.form-ok.show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#F6F4EF;padding:72px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16.5px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--accent);color:var(--ink);}
.site-footer p{color:var(--dark-2);font-size:14px;line-height:1.85;max-width:340px;}
.footer-col h4{font-size:14px;color:#fff;letter-spacing:.04em;margin-bottom:18px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{color:var(--dark-2);font-size:14px;}
.footer-col a:hover{color:var(--accent);}
.footer-contact li{font-size:13.5px;color:var(--dark-2);line-height:1.75;}
.footer-contact b{display:block;color:#F6F4EF;font-weight:600;font-size:13.5px;}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(246,244,239,.14);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.footer-bottom p{font-size:13px;color:var(--dark-2);max-width:none;}
.fb-links{display:flex;flex-wrap:wrap;gap:20px;}
.fb-links a{font-size:13px;color:var(--dark-2);}
.fb-links a:hover{color:var(--accent);}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:50%;
  background:var(--ink);color:var(--accent);border:1px solid var(--ink);
  display:flex;align-items:center;justify-content:center;font-size:15px;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all .28s var(--ease);z-index:1200;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--accent);color:var(--ink);}

/* ---------- 入场动效 ---------- */
.fade-up{opacity:0;transform:translateY(12px);animation:fadeUp .5s var(--ease) forwards;}
.fade-up.d1{animation-delay:.06s;}
.fade-up.d2{animation-delay:.12s;}
.fade-up.d3{animation-delay:.18s;}
@keyframes fadeUp{to{opacity:1;transform:translateY(0);}}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .nav-search input{width:118px;}
}
@media (max-width:992px){
  .nav-channels,.nav-search,.btn-ghost{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions{gap:10px;}
  .intro-grid,.cta-grid{grid-template-columns:1fr;gap:36px;}
  .compare{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .stats{grid-template-columns:repeat(2,1fr);row-gap:34px;}
  .stat{padding-left:0;border-left:0;border-top:1px solid rgba(246,244,239,.16);padding-top:22px;}
  .stat:first-child{border-top:0;padding-top:0;}
  .section{padding:76px 0;}
}
@media (max-width:768px){
  .wrap{padding:0 18px;}
  .cat-hero{border-radius:16px;min-height:0;padding:34px 22px;background-image:linear-gradient(180deg,rgba(20,19,26,.78) 0%,rgba(20,19,26,.78) 100%),url("/assets/images/backpic/back-2.webp");}
  .grid-4,.grid-3,.grid-2,.steps{grid-template-columns:1fr;}
  .section{padding:56px 0;}
  .section-sm{padding:44px 0;}
  .band-dark,.cta-dark{padding:60px 0;}
  .footer-grid{grid-template-columns:1fr;}
  .stats{grid-template-columns:1fr;}
  .cat-hero .hero-cta{flex-direction:column;align-items:stretch;}
  .cat-hero .hero-cta .btn-solid,.cat-hero .hero-cta .btn-line-light{justify-content:center;}
  h2{font-size:26px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .fade-up{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --ink:#14131A;
  --ink-2:#5C5867;
  --line:#E4E0D8;
  --accent:#C9F24D;
  --accent-2:#5B4BFF;
  --warn:#FF6B4A;
  --on-dark:#F6F4EF;
  --on-dark-2:#A8A4B3;
  --r-card:12px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(20,19,26,.05);
  --shadow-2:0 20px 44px -28px rgba(20,19,26,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sect:104px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.85;overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
p{overflow-wrap:break-word}
:focus-visible{outline:3px solid rgba(91,75,255,.55);outline-offset:2px;border-radius:6px}

.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(246,244,239,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header.is-scrolled{
  background:#fff;
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px -24px rgba(20,19,26,.55);
}
.header-inner{display:flex;align-items:center;gap:26px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:30px;height:30px;border-radius:9px;background:var(--accent);color:var(--ink);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;letter-spacing:0;
}
.brand-text{font-weight:800;font-size:17px;letter-spacing:-.01em;white-space:nowrap}
.nav-channels{display:flex;align-items:center;gap:22px;margin-left:8px}
.nav-link-x{
  position:relative;padding:6px 0;font-size:15px;color:var(--ink-2);
  transition:color .24s var(--ease);white-space:nowrap;
}
.nav-link-x::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--accent);transition:width .24s var(--ease);
}
.nav-link-x:hover{color:var(--ink)}
.nav-link-x:hover::after{width:100%}
.nav-link-x.active{color:var(--accent-2);font-weight:600}
.nav-link-x.active::after{width:100%}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:0 14px;height:40px;min-width:210px;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.search-box:focus-within{border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(91,75,255,.14)}
.search-box i{color:var(--ink-2);font-size:13px}
.search-box input{border:0;outline:none;background:transparent;width:100%;font-size:14px}
.search-box input::placeholder{color:#9A96A6}
.btn-solid,.btn-outline,.btn-light-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);padding:10px 20px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease);
}
.btn-solid{background:var(--accent);color:var(--ink);border-color:var(--accent)}
.btn-solid:hover{background:var(--ink);color:var(--on-dark);border-color:var(--ink);transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-outline:hover{background:var(--accent);border-color:var(--accent);color:var(--ink);transform:translateY(-2px)}
.btn-light-outline{background:transparent;color:var(--on-dark);border-color:rgba(246,244,239,.45)}
.btn-light-outline:hover{background:var(--accent);border-color:var(--accent);color:var(--ink);transform:translateY(-2px)}
.btn-ghost{font-size:15px;color:var(--ink-2);padding:10px 6px;transition:color .24s var(--ease)}
.btn-ghost:hover{color:var(--accent-2)}
.menu-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:#fff;cursor:pointer;color:var(--ink);
}
.drawer{border-top:1px solid var(--line);background:#fff}
.drawer-inner{padding:18px 0 24px;display:flex;flex-direction:column;gap:6px}
.drawer-inner .nav-link-x{padding:11px 0;font-size:16px;border-bottom:1px solid var(--line)}
.drawer-inner .nav-link-x::after{display:none}
.drawer-search{display:flex;align-items:center;gap:8px;background:var(--bg);border:1px solid var(--line);border-radius:var(--r-pill);padding:0 14px;height:46px;margin-top:14px}
.drawer-search input{border:0;background:transparent;outline:none;width:100%}
.drawer-cta{display:flex;gap:12px;margin-top:14px}
.drawer-cta .btn-solid,.drawer-cta .btn-outline{flex:1}

/* ---------- 内页横幅 ---------- */
.page-hero{
  position:relative;color:var(--on-dark);padding:82px 0 66px;
  background-image:linear-gradient(160deg,rgba(20,19,26,.74),rgba(20,19,26,.82)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
}
.crumbs{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--on-dark-2);margin-bottom:26px}
.crumbs a{color:var(--on-dark-2);transition:color .24s var(--ease)}
.crumbs a:hover{color:var(--accent)}
.crumbs span[aria-current]{color:var(--on-dark)}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.02em;color:var(--accent);
  border:1px solid rgba(201,242,77,.42);border-radius:var(--r-pill);
  padding:5px 14px;margin-bottom:22px;
}
.page-hero h1{
  font-size:clamp(38px,5vw,62px);font-weight:800;line-height:1.06;letter-spacing:-.02em;
  margin-bottom:20px;
}
.hero-sub{max-width:640px;font-size:17px;color:#DDD9E2;line-height:1.85}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}
.hero-metrics li{
  display:flex;align-items:baseline;gap:8px;
  border:1px solid rgba(246,244,239,.18);border-radius:var(--r-pill);
  padding:8px 18px;font-size:13px;color:var(--on-dark-2);
}
.hero-metrics b{font-size:16px;font-weight:800;color:var(--on-dark)}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sect) 0}
.section-sm{padding:72px 0}
.sec-head{max-width:720px;margin-bottom:44px}
.sec-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--ink-2);margin-bottom:14px;position:relative;padding-left:22px;
}
.sec-head .eyebrow::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:14px;height:3px;border-radius:2px;background:var(--accent);
}
.sec-head h2{font-size:clamp(26px,3.4vw,40px);font-weight:700;line-height:1.2;letter-spacing:-.01em;margin-bottom:16px}
.sec-head p{color:var(--ink-2);font-size:16px}
.on-dark .eyebrow{color:var(--on-dark-2)}
.on-dark h2{color:var(--on-dark)}
.on-dark p{color:var(--on-dark-2)}

/* ---------- 图文介绍 ---------- */
.intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.intro-copy h2{font-size:clamp(26px,3.2vw,38px);font-weight:700;line-height:1.22;margin-bottom:18px;letter-spacing:-.01em}
.intro-copy p{color:var(--ink-2);margin-bottom:16px}
.intro-list{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.intro-list li{display:flex;gap:12px;font-size:15px;color:var(--ink-2)}
.intro-list i{color:var(--accent-2);margin-top:7px;font-size:12px}
.intro-media{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-1);position:relative;
}
.intro-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.intro-media figcaption{
  position:absolute;left:16px;bottom:16px;background:rgba(20,19,26,.78);
  color:var(--on-dark);font-size:13px;padding:7px 14px;border-radius:var(--r-pill);
}

/* ---------- 卡片 ---------- */
.card-x{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;height:100%;display:flex;flex-direction:column;
  box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.card-x:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D6D1C6}
.card-media{overflow:hidden;background:#EFEBE3}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.card-x:hover .card-media img{transform:scale(1.04)}
.media-16-10{aspect-ratio:16/10}
.media-4-3{aspect-ratio:4/3}
.media-3-2{aspect-ratio:3/2}
.card-body-x{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.badge-x{
  align-self:flex-start;font-size:12px;font-weight:700;letter-spacing:.03em;
  background:rgba(201,242,77,.32);color:#3B4A08;border-radius:var(--r-pill);
  padding:4px 12px;margin-bottom:14px;
}
.badge-x.badge-purple{background:rgba(91,75,255,.12);color:var(--accent-2)}
.card-body-x h3{font-size:19px;font-weight:600;line-height:1.45;margin-bottom:10px;transition:color .24s var(--ease)}
.card-x:hover .card-body-x h3{color:var(--accent-2)}
.card-body-x p{font-size:14.5px;color:var(--ink-2);line-height:1.8}
.link-arrow{
  margin-top:auto;padding-top:18px;font-size:14px;font-weight:600;color:var(--accent-2);
  display:inline-flex;align-items:center;gap:8px;transition:gap .24s var(--ease);
}
.card-x:hover .link-arrow{gap:14px}
.card-meta{
  display:flex;gap:14px;font-size:12.5px;color:rgba(20,19,26,.55);
  margin-top:14px;font-variant-numeric:tabular-nums;
}

/* ---------- 深色数据带 ---------- */
.dark-band{background:var(--ink);color:var(--on-dark);padding:92px 0}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:6px 30px}
.stat:first-child{padding-left:0}
.stat + .stat{border-left:1px solid rgba(246,244,239,.14)}
.stat-num{
  font-size:clamp(36px,4.6vw,56px);font-weight:800;line-height:1;
  color:var(--accent);letter-spacing:-.02em;font-variant-numeric:tabular-nums;
}
.stat-unit{font-size:16px;font-weight:700;color:var(--accent);margin-left:6px}
.stat p{color:var(--on-dark-2);font-size:14px;margin-top:14px;line-height:1.7}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;counter-reset:step}
.step{
  padding:0 22px;position:relative;counter-increment:step;
}
.step:first-child{padding-left:0}
.step + .step{border-left:1px solid var(--line)}
.step::before{
  content:counter(step,decimal-leading-zero);
  display:block;font-size:13px;font-weight:800;letter-spacing:.08em;
  color:var(--accent-2);margin-bottom:14px;font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:10px;line-height:1.5}
.step p{font-size:14px;color:var(--ink-2);line-height:1.8}

/* ---------- 场景图卡 ---------- */
.scene-card{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  min-height:320px;display:flex;align-items:flex-end;
  border:1px solid var(--line);
}
.scene-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;transition:transform .6s var(--ease)}
.scene-card:hover img{transform:scale(1.05)}
.scene-card::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(20,19,26,.12),rgba(20,19,26,.82));
}
.scene-body{position:relative;z-index:2;padding:28px;color:var(--on-dark)}
.scene-body h3{font-size:21px;font-weight:700;margin-bottom:10px}
.scene-body p{font-size:14px;color:#D8D4DE;line-height:1.8;max-width:460px}
.scene-body .badge-x{background:rgba(201,242,77,.9);color:#22290A;margin-bottom:12px}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:24px 54px 24px 0;font-size:17px;font-weight:600;line-height:1.6;
  transition:color .24s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:-14px;top:34px;width:3px;height:0;
  background:var(--accent);border-radius:2px;transition:height .28s var(--ease);
}
.faq-item summary i{
  position:absolute;right:8px;top:29px;font-size:13px;color:var(--ink-2);
  transition:transform .28s var(--ease),color .28s var(--ease);
}
.faq-item summary:hover{color:var(--accent-2)}
.faq-item[open] summary{color:var(--accent-2)}
.faq-item[open] summary::before{height:24px}
.faq-item[open] summary i{transform:rotate(180deg);color:var(--accent-2)}
.faq-body{padding:0 64px 26px 0;color:var(--ink-2);font-size:15px}
.faq-body p{margin-bottom:8px}

/* ---------- CTA + 表单 ---------- */
.cta-band{padding:88px 0 96px}
.cta-band h2{font-size:clamp(26px,3.2vw,38px);font-weight:700;line-height:1.24;margin-bottom:18px;color:var(--on-dark)}
.cta-band > .wrap > .row > div:first-child p{color:var(--on-dark-2);font-size:15px}
.cta-list{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.cta-list li{display:flex;gap:12px;color:var(--on-dark-2);font-size:14.5px}
.cta-list i{color:var(--accent);margin-top:7px;font-size:12px}
.contact-form{
  background:var(--surface);border-radius:16px;padding:30px;
  box-shadow:0 30px 60px -40px rgba(0,0,0,.65);
}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:8px;color:var(--ink)}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:10px;
  padding:12px 14px;height:48px;background:#FBFAF7;outline:none;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease);
}
.field textarea{height:auto;min-height:118px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--accent-2);background:#fff;box-shadow:0 0 0 3px rgba(91,75,255,.14);
}
.field input::placeholder,.field textarea::placeholder{color:#9A96A6}
.form-foot{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:6px}
.form-tip{font-size:13.5px;color:var(--accent-2);font-weight:600}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--on-dark);padding:70px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;margin-bottom:16px}
.footer-brand .brand-mark{width:28px;height:28px;border-radius:8px;font-size:14px}
.site-footer p{color:var(--on-dark-2);font-size:14px;line-height:1.85;max-width:360px}
.footer-col h4{font-size:14px;font-weight:700;letter-spacing:.04em;margin-bottom:18px;color:var(--on-dark)}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{color:var(--on-dark-2);font-size:14px;transition:color .24s var(--ease)}
.footer-col a:hover{color:var(--accent)}
.footer-contact li{color:var(--on-dark-2);font-size:14px;line-height:1.75}
.footer-contact b{display:block;color:var(--on-dark);font-size:13px;font-weight:600;margin-bottom:2px}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(246,244,239,.13);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.footer-bottom p{font-size:13px;color:var(--on-dark-2)}
.fb-links{display:flex;flex-wrap:wrap;gap:20px}
.fb-links a{font-size:13px;color:var(--on-dark-2);transition:color .24s var(--ease)}
.fb-links a:hover{color:var(--accent)}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:1040;
  width:46px;height:46px;border-radius:50%;
  background:var(--ink);color:var(--on-dark);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 14px 30px -18px rgba(20,19,26,.9);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;
}
.to-top.is-on{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--accent);color:var(--ink)}

/* ---------- 入场动效 ---------- */
.fade-up{opacity:0;transform:translateY(12px);animation:fadeUp .5s var(--ease) forwards}
.fade-up:nth-child(2){animation-delay:.06s}
.fade-up:nth-child(3){animation-delay:.12s}
.fade-up:nth-child(4){animation-delay:.18s}
.fade-up:nth-child(5){animation-delay:.24s}
@keyframes fadeUp{to{opacity:1;transform:translateY(0)}}

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

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .nav-channels{gap:16px}
  .search-box{min-width:170px}
  .stat{padding:6px 20px}
  .step{padding:0 16px}
}
@media (max-width:991.98px){
  :root{--sect:72px}
  .nav-channels,.search-box,.btn-ghost{display:none}
  .menu-toggle{display:inline-flex}
  .intro-grid{grid-template-columns:1fr;gap:36px}
  .stat-row{grid-template-columns:repeat(2,1fr);gap:34px 0}
  .stat{padding:0 24px}
  .stat:nth-child(odd){padding-left:0;border-left:0}
  .stat:nth-child(3){border-left:0}
  .steps{grid-template-columns:repeat(2,1fr);gap:34px 0}
  .step{padding:0 20px}
  .step:nth-child(odd){padding-left:0;border-left:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .faq-body{padding-right:24px}
}
@media (max-width:767.98px){
  :root{--sect:60px}
  .page-hero{padding:58px 0 48px}
  .hero-sub{font-size:15.5px}
  .hero-metrics li{font-size:12.5px;padding:7px 14px}
  .section-sm{padding:52px 0}
  .dark-band{padding:62px 0}
  .stat-row{grid-template-columns:1fr;gap:0}
  .stat{padding:22px 0 !important;border-left:0 !important;border-top:1px solid rgba(246,244,239,.14)}
  .stat:first-child{border-top:0;padding-top:0 !important}
  .steps{grid-template-columns:1fr;gap:0}
  .step{padding:20px 0 !important;border-left:0 !important;border-top:1px solid var(--line)}
  .step:first-child{border-top:0;padding-top:0 !important}
  .faq-item summary{font-size:16px;padding-right:40px}
  .faq-body{padding:0 0 22px}
  .contact-form{padding:22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .to-top{right:16px;bottom:18px}
}
@media (max-width:575.98px){
  .wrap{padding:0 18px}
  .brand-text{font-size:15.5px}
  .hero-cta .btn-solid,.hero-cta .btn-light-outline{width:100%}
  .scene-card{min-height:260px}
}

/* roulang page: category4 */
:root{
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --ink:#14131A;
  --ink-2:#5C5867;
  --line:#E4E0D8;
  --accent:#C9F24D;
  --accent-2:#5B4BFF;
  --warn:#FF6B4A;
  --radius:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(20,19,26,.05);
  --shadow-2:0 20px 44px -28px rgba(20,19,26,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--accent-2);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--ink)}
button,input,textarea,select{font:inherit;color:inherit}
ul{list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700}
p{margin:0}
.wrap{max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--accent-2);text-transform:uppercase;margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent-2);display:inline-block}
.h2{font-size:clamp(26px,3.4vw,42px);font-weight:700;line-height:1.2;letter-spacing:-.01em}
.lead{margin-top:18px;color:var(--ink-2);font-size:16.5px;line-height:1.9}
.muted{color:var(--ink-2);font-size:14.5px;line-height:1.85}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--bg);border-bottom:1px solid transparent;transition:background .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease)}
.site-header.is-stuck{background:#fff;border-bottom-color:var(--line);box-shadow:0 10px 30px -24px rgba(20,19,26,.6)}
.header-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:22px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--ink);letter-spacing:-.01em;white-space:nowrap}
.brand:hover{color:var(--ink)}
.brand-mark{width:30px;height:30px;border-radius:9px;background:var(--ink);color:var(--accent);display:grid;place-items:center;font-size:15px;font-weight:800;flex:none}
.nav-channels{display:flex;align-items:center;gap:26px}
.nav-link-x{position:relative;display:inline-block;color:var(--ink-2);font-size:15px;font-weight:500;padding:22px 0}
.nav-link-x::after{content:"";position:absolute;left:0;bottom:14px;width:100%;height:3px;border-radius:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .28s var(--ease)}
.nav-link-x:hover{color:var(--ink)}
.nav-link-x:hover::after{transform:scaleX(1)}
.nav-link-x.active{color:var(--accent-2);font-weight:700}
.nav-link-x.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.search-box{display:flex;align-items:center;gap:9px;height:38px;padding:0 15px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-pill);transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.search-box:focus-within{border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(91,75,255,.14)}
.search-box i{color:var(--ink-2);font-size:13px}
.search-box input{border:0;outline:0;background:transparent;width:142px;font-size:14px;color:var(--ink)}
.search-box input::placeholder{color:#9A96A5}
.menu-toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;place-items:center;cursor:pointer;transition:background .2s var(--ease),border-color .2s var(--ease)}
.menu-toggle:hover{background:var(--accent);border-color:var(--accent)}
.mobile-drawer{display:none;background:#fff;border-top:1px solid var(--line);padding:10px 0 16px}
.mobile-drawer.open{display:block}
.mobile-drawer a{display:block;padding:12px 24px;color:var(--ink-2);font-size:15px;font-weight:500}
.mobile-drawer a.active{color:var(--accent-2);font-weight:700}
.mobile-drawer a:hover{background:var(--bg);color:var(--ink)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;height:44px;padding:0 22px;border-radius:var(--radius-pill);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease)}
.btn-accent{background:var(--accent);color:var(--ink);border-color:var(--accent)}
.btn-accent:hover{background:var(--ink);color:var(--accent);border-color:var(--ink);transform:translateY(-2px)}
.btn-outline{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:var(--accent);border-color:var(--accent);color:var(--ink);transform:translateY(-2px)}
.btn-ghost{color:var(--ink-2);background:transparent;height:38px;padding:0 14px;font-size:14.5px}
.btn-ghost:hover{color:var(--accent-2);background:rgba(91,75,255,.08)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-onDark{border:1px solid rgba(246,244,239,.42);color:#F6F4EF;background:transparent}
.btn-onDark:hover{background:var(--accent);border-color:var(--accent);color:var(--ink);transform:translateY(-2px)}
.btn:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(91,75,255,.45);outline-offset:2px}

/* ---------- page hero ---------- */
.page-hero{position:relative;background:var(--ink);color:#F6F4EF;overflow:hidden;padding:82px 0 74px}
.page-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.44}
.page-hero-veil{position:absolute;inset:0;background:linear-gradient(100deg,rgba(20,19,26,.95) 0%,rgba(20,19,26,.82) 45%,rgba(20,19,26,.6) 100%)}
.page-hero-inner{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:#A8A4B3;margin-bottom:24px;flex-wrap:wrap}
.crumb a{color:#A8A4B3}
.crumb a:hover{color:var(--accent)}
.crumb .sep{opacity:.6}
.tag-pill{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--radius-pill);border:1px solid rgba(201,242,77,.5);color:var(--accent);font-size:13px;font-weight:600}
.page-hero h1{margin-top:20px;font-size:clamp(38px,5.4vw,64px);font-weight:800;line-height:1.08;letter-spacing:-.02em;max-width:900px}
.hero-sub{margin-top:22px;max-width:720px;font-size:17px;line-height:1.9;color:#D6D3DE}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:12px;margin:38px 0 0;padding:0}
.hero-metrics li{display:flex;flex-direction:column;gap:3px;padding:12px 20px;border-radius:var(--radius);border:1px solid rgba(246,244,239,.2)}
.hero-metrics b{font-size:20px;font-weight:800;color:var(--accent);line-height:1.2}
.hero-metrics span{font-size:12.5px;color:#A8A4B3;letter-spacing:.02em}

/* ---------- intro ---------- */
.intro-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{display:inline-flex;align-items:center;gap:7px;height:32px;padding:0 14px;border-radius:var(--radius-pill);border:1px solid var(--line);background:var(--surface);font-size:13.5px;color:var(--ink-2);font-weight:500}
.chip i{color:var(--accent-2);font-size:12px}

/* ---------- cards ---------- */
.grid-x{display:grid;gap:24px}
.cols-4{grid-template-columns:repeat(4,1fr)}
.cols-3{grid-template-columns:repeat(3,1fr)}
.cols-2{grid-template-columns:repeat(2,1fr)}
.card-x{display:flex;flex-direction:column;height:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease)}
.card-x:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D8D3C8}
.card-x .thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:#EDEAE3}
.card-x .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease)}
.card-x:hover .thumb img{transform:scale(1.04)}
.card-body-x{display:flex;flex-direction:column;gap:10px;flex:1;padding:20px 20px 22px}
.badge-x{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--radius-pill);background:#EEF9CF;color:#4C5A16;font-size:12px;font-weight:600}
.badge-x.alt{background:rgba(91,75,255,.1);color:#5B4BFF}
.card-x h3{font-size:18px;font-weight:600;line-height:1.48}
.card-x p{color:var(--ink-2);font-size:14.5px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:rgba(20,19,26,.55);font-variant-numeric:tabular-nums}
.card-meta .more{display:inline-flex;align-items:center;gap:6px;color:var(--accent-2);font-weight:600;transition:color .2s var(--ease)}
.card-meta .more i{transition:transform .24s var(--ease)}
.card-x:hover .card-meta .more i{transform:translateX(4px)}
.card-x:hover .card-x h3,.card-x:hover h3{color:var(--accent-2)}

/* feature cards */
.card-img{position:relative;display:flex;align-items:flex-end;min-height:320px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);color:#F6F4EF}
.card-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.card-img:hover img{transform:scale(1.04)}
.card-img .ov{position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,19,26,.16) 0%,rgba(20,19,26,.88) 100%)}
.card-img .cw{position:relative;z-index:2;padding:28px 28px 30px;width:100%}
.card-img h3{font-size:21px;font-weight:700;color:#F6F4EF;margin-top:12px}
.card-img p{margin-top:10px;color:#C9C6D2;font-size:14.5px;line-height:1.85;max-width:520px}
.card-img .badge-x{background:rgba(201,242,77,.9);color:#2B3208}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--line);padding-top:38px;margin-top:8px}
.step{padding:0 24px;border-left:1px solid var(--line)}
.step:first-child{border-left:0;padding-left:0}
.step b{display:block;font-size:13px;font-weight:800;letter-spacing:.1em;color:var(--accent-2);margin-bottom:12px}
.step h3{font-size:17px;font-weight:600;margin-bottom:10px}
.step p{color:var(--ink-2);font-size:14px;line-height:1.8}

/* ---------- dark band ---------- */
.band-dark{background:var(--ink);color:#F6F4EF}
.band-dark .h2{color:#F6F4EF}
.band-dark .lead{color:#A8A4B3}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);margin-top:52px}
.stat{padding:0 30px;border-left:1px solid rgba(246,244,239,.16)}
.stat:first-child{border-left:0;padding-left:0}
.stat b{display:block;font-size:clamp(36px,4.6vw,56px);font-weight:800;line-height:1;letter-spacing:-.02em;color:var(--accent)}
.stat span{display:block;margin-top:14px;font-size:14px;line-height:1.8;color:#A8A4B3}
.stat i{display:block;margin-top:8px;font-size:12.5px;color:#7B7787;font-style:normal}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{position:relative;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:24px 0 24px 18px;font-size:17px;font-weight:600;cursor:pointer;list-style:none;transition:color .2s var(--ease)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:2px;background:transparent;transition:background .24s var(--ease)}
.faq-item summary:hover{color:var(--accent-2)}
.faq-item[open] summary::before{background:var(--accent)}
.faq-item .faq-arrow{color:var(--ink-2);font-size:14px;transition:transform .28s var(--ease),color .28s var(--ease);flex:none}
.faq-item[open] .faq-arrow{transform:rotate(180deg);color:var(--accent-2)}
.faq-a{padding:0 0 26px 18px;max-width:920px;color:var(--ink-2);font-size:15.5px;line-height:1.9}

/* ---------- cta ---------- */
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.cta-points{margin-top:28px;padding:0;display:flex;flex-direction:column;gap:14px}
.cta-points li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:#D6D3DE}
.cta-points i{color:var(--accent);margin-top:5px;font-size:13px}
.form-card{border:1px solid rgba(246,244,239,.18);border-radius:var(--radius);padding:28px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;color:#A8A4B3;margin-bottom:8px}
.field input,.field textarea{width:100%;min-height:48px;padding:12px 16px;border-radius:10px;border:1px solid rgba(246,244,239,.22);background:transparent;color:#F6F4EF;outline:none;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.field textarea{min-height:112px;resize:vertical;line-height:1.8}
.field input::placeholder,.field textarea::placeholder{color:#7B7787}
.field input:focus,.field textarea:focus{border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(91,75,255,.28)}
.form-note{margin-top:14px;font-size:12.5px;color:#7B7787;line-height:1.7}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#F6F4EF;padding:76px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:#F6F4EF;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--accent);color:var(--ink)}
.site-footer p{color:#A8A4B3;font-size:14px;line-height:1.95}
.footer-col h4{font-size:14px;font-weight:700;letter-spacing:.04em;margin-bottom:18px;color:#F6F4EF}
.footer-col ul{display:flex;flex-direction:column;gap:12px;padding:0;margin:0}
.footer-col a{color:#A8A4B3;font-size:14px}
.footer-col a:hover{color:var(--accent)}
.footer-contact li{color:#A8A4B3;font-size:14px;line-height:1.8}
.footer-contact b{display:block;color:#F6F4EF;font-weight:600;font-size:13px;margin-bottom:2px}
.footer-bottom{margin-top:48px;padding-top:24px;border-top:1px solid rgba(246,244,239,.14);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer-bottom p{font-size:13px;color:#A8A4B3}
.fb-links{display:flex;gap:20px;flex-wrap:wrap}
.fb-links a{font-size:13px;color:#A8A4B3}
.fb-links a:hover{color:var(--accent)}

/* ---------- to top ---------- */
.to-top{position:fixed;right:22px;bottom:26px;z-index:70;width:46px;height:46px;border-radius:var(--radius-pill);border:1px solid var(--line);background:#fff;color:var(--ink);display:grid;place-items:center;cursor:pointer;box-shadow:var(--shadow-2);opacity:0;pointer-events:none;transition:opacity .25s var(--ease),transform .25s var(--ease),background .25s var(--ease)}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{background:var(--accent);transform:translateY(-3px)}

/* ---------- entrance animation ---------- */
.fade-up{opacity:0;transform:translateY(12px);animation:fadeUp .6s var(--ease) forwards}
@keyframes fadeUp{to{opacity:1;transform:translateY(0)}}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .cols-4{grid-template-columns:repeat(3,1fr)}
  .nav-channels{gap:20px}
  .search-box input{width:110px}
}
@media (max-width:992px){
  .nav-channels{display:none}
  .search-box{display:none}
  .menu-toggle{display:grid}
  .cols-4{grid-template-columns:repeat(2,1fr)}
  .cols-3{grid-template-columns:repeat(2,1fr)}
  .intro-grid{grid-template-columns:1fr;gap:32px}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:36px 0}
  .stat:nth-child(3){border-left:0;padding-left:0}
  .steps{grid-template-columns:repeat(2,1fr);gap:32px 0}
  .step:nth-child(3){border-left:0;padding-left:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:768px){
  .section{padding:60px 0}
  .section-tight{padding:48px 0}
  .page-hero{padding:56px 0 52px}
  .page-hero-veil{background:linear-gradient(180deg,rgba(20,19,26,.94) 0%,rgba(20,19,26,.86) 60%,rgba(20,19,26,.78) 100%)}
  .cols-4,.cols-3,.cols-2{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .step{border-left:0;padding:0}
  .step{padding-bottom:4px}
  .stat-grid{grid-template-columns:1fr;gap:34px 0}
  .stat{padding:0;border-left:0}
  .footer-grid{grid-template-columns:1fr;gap:34px}
  .hero-sub{font-size:16px}
  .card-img{min-height:260px}
}
@media (max-width:576px){
  .wrap{padding:0 18px}
  .header-inner{height:62px;gap:12px}
  .brand{font-size:15.5px}
  .brand-mark{width:28px;height:28px;font-size:14px}
  .btn{height:42px;padding:0 18px;font-size:14.5px}
  .btn-sm{height:36px;padding:0 15px;font-size:13.5px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .fade-up{opacity:1;transform:none}
}