/* roulang page: index */
:root{
  --orange:#F2542D;
  --orange-dark:#D9411C;
  --orange-soft:#FDEDE8;
  --cyan:#12B5A5;
  --cyan-soft:#E4F7F5;
  --yellow:#FFC53D;
  --ink:#151A1E;
  --muted:#5C6672;
  --sand:#F6F3EE;
  --white:#FFFFFF;
  --dark:#12171A;
  --line:#E6DFD6;
  --line-dark:#2A3238;
  --gray:#9AA3AB;
  --red:#E14545;
  --r-card:14px;
  --r-lg:18px;
  --r-sm:12px;
  --r-input:10px;
  --r-badge:6px;
  --r-pill:999px;
  --sh-card:0 6px 20px rgba(21,26,30,.06);
  --sh-hover:0 12px 28px rgba(21,26,30,.10);
  --sh-nav:0 6px 18px rgba(21,26,30,.08);
  --container:1200px;
  --sec-desktop:96px;
  --sec-tablet:72px;
  --sec-mobile:56px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--sand);
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
svg{display:block}
::selection{background:var(--orange);color:#fff}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--sec-desktop) 0}
.section--white{background:var(--white)}
.section--sand{background:var(--sand)}
.section--tight{padding-top:64px}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--cyan);border-radius:2px}

h1,h2,h3{letter-spacing:-.01em}
.h1{font-size:clamp(30px,4vw,48px);line-height:1.15;font-weight:800}
.h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700}
.h3{font-size:20px;line-height:1.4;font-weight:600}
.lead{color:var(--muted);font-size:16px;line-height:1.75}
.small{font-size:14px;line-height:1.6;color:var(--muted)}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:32px;
  margin-bottom:44px;
}
.section-head__text{max-width:720px}
.section-head .h2{margin:14px 0 12px}
.more-link{
  display:inline-flex;align-items:center;gap:8px;flex:0 0 auto;
  font-size:15px;font-weight:700;color:var(--orange);
  transition:gap .2s ease,color .2s ease;
}
.more-link:hover{gap:12px;color:var(--orange-dark)}
.more-link svg{width:16px;height:16px}

/* ---------- 顶部状态条 ---------- */
.topbar{background:var(--dark);color:#C7CFD6;font-size:13px;min-height:40px;display:flex;align-items:center}
.topbar .container{display:flex;align-items:center;gap:16px}
.tb-status{display:inline-flex;align-items:center;gap:8px;color:#fff;font-weight:600;flex:0 0 auto}
.dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 3px rgba(18,181,165,.18)}
.dot--yellow{background:var(--yellow);box-shadow:0 0 0 3px rgba(255,197,61,.18)}
.tb-mid{flex:1;text-align:center;color:#98A2AB;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.countdown{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:6px;
  font-variant-numeric:tabular-nums;
  background:var(--orange);color:#fff;
  padding:5px 14px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;letter-spacing:.04em;
}
.countdown--dark{background:rgba(242,84,45,.12);color:var(--orange);border:1px solid rgba(242,84,45,.28)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:var(--white);
  border-bottom:1px solid var(--line);transition:box-shadow .2s ease;
}
.site-header.scrolled{box-shadow:var(--sh-nav)}
.nav{display:flex;align-items:center;gap:20px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;letter-spacing:-.01em;flex:0 0 auto}
.logo-mark{position:relative;width:16px;height:16px;background:var(--orange);border-radius:4px;flex:0 0 auto}
.logo-mark::after{content:"";position:absolute;left:0;right:0;bottom:-7px;height:2px;background:var(--cyan);border-radius:2px}
.logo-sub{font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.06em}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:12px}
.nav-menu a{
  position:relative;display:inline-block;padding:8px 12px;
  font-size:15px;font-weight:600;color:#2A3238;
  border-radius:8px;transition:color .18s ease;
}
.nav-menu a:hover{color:var(--orange)}
.nav-menu a.active{color:var(--ink)}
.nav-menu a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-16px;height:3px;
  background:var(--orange);border-radius:2px;
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-burger{
  display:none;margin-left:auto;width:42px;height:42px;border:1px solid var(--line);
  background:#fff;border-radius:var(--r-sm);cursor:pointer;align-items:center;justify-content:center;
}
.nav-burger span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-burger span::before,.nav-burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink)}
.nav-burger span::before{top:-6px}
.nav-burger span::after{top:6px}

.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:#fff;z-index:120;padding:24px 22px;
  transform:translateX(100%);transition:transform .28s ease;overflow-y:auto;
  box-shadow:-8px 0 30px rgba(21,26,30,.14);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:36px;height:36px;border:1px solid var(--line);background:#fff;border-radius:10px;cursor:pointer;font-size:18px;line-height:1;color:var(--muted)}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-bottom:22px}
.drawer-links a{padding:12px 10px;border-radius:10px;font-weight:600;font-size:15px;border-bottom:1px solid var(--line)}
.drawer-links a.active{color:var(--orange);background:var(--orange-soft)}
.overlay{position:fixed;inset:0;background:rgba(21,26,30,.6);opacity:0;pointer-events:none;transition:opacity .28s ease;z-index:110}
.overlay.open{opacity:1;pointer-events:auto}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-pill);border:1.5px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .15s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 8px 18px rgba(242,84,45,.24)}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(242,84,45,.28)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:#fff;color:var(--orange);border-color:var(--orange)}
.btn-ghost:hover{background:var(--orange-soft);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-light{background:#fff;color:var(--orange)}
.btn-light:hover{background:#FFEDE7;transform:translateY(-2px)}
.btn-block{width:100%}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--cyan);outline-offset:2px;
}
.btn[disabled]{background:var(--gray);border-color:var(--gray);cursor:not-allowed;transform:none;box-shadow:none}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;letter-spacing:.04em;line-height:1;
  padding:6px 10px;border-radius:var(--r-badge);
}
.badge-cyan{background:var(--cyan-soft);color:#0B8577}
.badge-orange{background:var(--orange-soft);color:var(--orange-dark)}
.badge-yellow{background:#FFF6DF;color:#8A6300}
.badge-gray{background:#EFF1F2;color:#5C6672}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--white);padding:60px 0 72px;overflow:hidden}
.hero::before{
  content:"";position:absolute;top:-220px;right:-160px;width:560px;height:560px;
  border:2px solid rgba(18,181,165,.16);border-radius:50%;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;left:-140px;bottom:-260px;width:480px;height:480px;
  border:2px dashed rgba(242,84,45,.16);border-radius:50%;pointer-events:none;
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.hero-badges{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:20px}
.hero .h1{margin-bottom:18px}
.hero .h1 em{font-style:normal;color:var(--orange)}
.hero-sub{font-size:17px;line-height:1.75;color:var(--muted);max-width:560px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px}
.text-link{display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--ink);font-size:15px}
.text-link svg{width:16px;height:16px;transition:transform .2s ease}
.text-link:hover{color:var(--orange)}
.text-link:hover svg{transform:translateY(3px)}

.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-lg);border:1px solid var(--line);
  box-shadow:var(--sh-card);
}
.float-card{
  position:absolute;left:-28px;bottom:26px;background:#fff;
  border-radius:var(--r-card);box-shadow:var(--sh-hover);
  padding:16px 20px;border:1px solid var(--line);min-width:190px;
}
.float-card .small{margin-top:4px}
.float-card strong{font-size:22px;font-weight:800}

/* ---------- 数据条 ---------- */
.datastrip{background:var(--dark);padding:36px 0}
.datastrip-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.datastrip-item{padding:6px 26px;color:#fff}
.datastrip-item + .datastrip-item{border-left:1px solid var(--line-dark)}
.datastrip-item b{display:block;font-size:30px;font-weight:800;line-height:1.2;font-variant-numeric:tabular-nums;color:#fff}
.datastrip-item b span{font-size:16px;font-weight:700;color:var(--yellow);margin-left:2px}
.datastrip-item p{margin-top:6px;font-size:13px;color:#98A2AB;line-height:1.6}

/* ---------- 能力卡片 ---------- */
.cap-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.cap-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px;box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.cap-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:var(--orange)}
.cap-icon{
  width:44px;height:44px;border-radius:12px;background:var(--cyan-soft);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;color:#0B8577;
}
.cap-icon svg{width:22px;height:22px}
.cap-card h3{margin-bottom:10px}
.cap-card p{font-size:14px;line-height:1.7;color:var(--muted)}
.cap-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{font-size:12px;font-weight:600;color:var(--muted);background:var(--sand);border-radius:var(--r-badge);padding:5px 9px}

/* ---------- 时间线 ---------- */
.timeline{position:relative;max-width:900px}
.tl-item{display:grid;grid-template-columns:88px 28px 1fr;align-items:flex-start;gap:0;position:relative;padding-bottom:32px}
.tl-item:last-child{padding-bottom:0}
.tl-time{font-variant-numeric:tabular-nums;font-weight:800;font-size:17px;line-height:1.4;color:var(--ink)}
.tl-time small{display:block;font-size:12px;font-weight:600;color:var(--gray);letter-spacing:.04em}
.tl-rail{position:relative;display:flex;justify-content:center;align-self:stretch}
.tl-rail::before{content:"";position:absolute;top:6px;bottom:-32px;width:2px;background:rgba(18,181,165,.35)}
.tl-item:last-child .tl-rail::before{display:none}
.tl-node{position:relative;z-index:1;width:12px;height:12px;border-radius:50%;background:var(--orange);border:4px solid #fff;box-shadow:0 0 0 2px rgba(242,84,45,.25);margin-top:4px}
.tl-card{
  background:var(--white);border:1px solid var(--line);border-left:4px solid var(--line);
  border-radius:var(--r-card);padding:20px 22px;box-shadow:var(--sh-card);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.tl-card:hover{box-shadow:var(--sh-hover);transform:translateY(-2px);border-color:var(--orange);border-left-color:var(--orange)}
.tl-card.is-now{border-left-color:var(--orange);background:#FFFBF9}
.tl-card__head{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:8px}
.tl-card__head h3{font-size:18px;font-weight:600}
.tl-card p{font-size:14px;color:var(--muted);line-height:1.7}

/* ---------- 现场亮点 ---------- */
.spot-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.spot-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.spot-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:var(--orange)}
.spot-card img{width:100%;aspect-ratio:4/3;object-fit:cover;border-bottom:1px solid var(--line)}
.spot-body{padding:20px}
.spot-body h3{font-size:18px;font-weight:700;margin-bottom:6px}
.spot-body p{font-size:14px;color:var(--muted);line-height:1.7}
.spot-meta{display:flex;align-items:center;gap:8px;margin-top:14px;font-size:13px;color:var(--gray)}

/* ---------- 方案对比 ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.plan-card{
  position:relative;background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:30px 26px;box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
.plan-card--hot{border-color:var(--orange);transform:translateY(-8px);box-shadow:var(--sh-hover)}
.plan-card--hot:hover{transform:translateY(-10px)}
.plan-flag{
  position:absolute;top:-13px;right:22px;background:var(--yellow);color:#3D2A00;
  font-size:12px;font-weight:800;letter-spacing:.06em;padding:5px 12px;border-radius:var(--r-pill);
}
.plan-name{font-size:15px;font-weight:700;color:var(--muted);letter-spacing:.04em}
.plan-price{margin:10px 0 4px;font-size:36px;font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums}
.plan-price small{font-size:14px;font-weight:600;color:var(--muted);margin-left:4px}
.plan-for{font-size:14px;color:var(--muted);padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:18px}
.plan-list{display:flex;flex-direction:column;gap:12px;margin-bottom:24px}
.plan-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:#2A3238;line-height:1.6}
.plan-list li svg{width:16px;height:16px;flex:0 0 auto;margin-top:4px}
.plan-list li.off{color:var(--gray)}
.plan-list li.off svg{opacity:.6}

/* ---------- FAQ ---------- */
.faq{max-width:900px}
.faq-item{background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:12px;overflow:hidden;transition:border-color .2s ease}
.faq-item.open{border-color:var(--orange)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:0;cursor:pointer;text-align:left;
  padding:0 20px;min-height:56px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-q .plus{width:20px;height:20px;flex:0 0 auto;position:relative;transition:transform .25s ease}
.faq-q .plus::before,.faq-q .plus::after{content:"";position:absolute;background:var(--orange);border-radius:2px}
.faq-q .plus::before{left:0;right:0;top:9px;height:2px}
.faq-q .plus::after{top:0;bottom:0;left:9px;width:2px}
.faq-item.open .faq-q .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a__inner{padding:0 20px 20px;border-left:4px solid var(--orange);margin-left:20px;padding-left:16px}
.faq-a p{font-size:15px;line-height:1.8;color:var(--muted)}

/* ---------- CTA ---------- */
.cta-band{background:var(--dark);padding:var(--sec-desktop) 0;position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;right:-180px;top:-180px;width:520px;height:520px;border-radius:50%;
  border:2px solid rgba(18,181,165,.2);
}
.cta-grid{position:relative;z-index:1;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:start}
.cta-copy .eyebrow{color:var(--yellow)}
.cta-copy .eyebrow::before{background:var(--yellow)}
.cta-copy .h2{color:#fff;margin:14px 0 16px}
.cta-copy p{color:#A5AFB7;font-size:16px;line-height:1.8;max-width:520px}
.cta-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.cta-points{margin-top:28px;display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;color:#C7CFD6;font-size:15px}
.cta-points svg{width:18px;height:18px;flex:0 0 auto;margin-top:4px;color:var(--cyan)}
.form-card{background:#fff;border-radius:var(--r-lg);padding:28px;box-shadow:0 20px 50px rgba(0,0,0,.25)}
.form-card h3{margin-bottom:6px}
.form-card .small{margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:7px;color:#2A3238}
.field input,.field select,.field textarea{
  width:100%;height:44px;padding:0 12px;
  border:1px solid var(--line);border-radius:var(--r-input);background:#fff;
  font-size:14px;transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:88px;padding:10px 12px;resize:vertical;line-height:1.6}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#CFC6B9}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--cyan);box-shadow:0 0 0 2px rgba(18,181,165,.28);
}
.form-note{font-size:12px;color:var(--gray);line-height:1.6;margin-top:12px}
.form-msg{margin-top:12px;font-size:13px;font-weight:600;color:var(--cyan);display:none}
.form-msg.show{display:block}

/* ---------- 内容列表（CMS） ---------- */
.news-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:var(--white);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-card);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:var(--orange)}
.news-thumb{position:relative}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;border-bottom:1px solid var(--line)}
.news-thumb .badge{position:absolute;left:12px;top:12px}
.news-body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.news-body h3{
  font-size:17px;line-height:1.45;font-weight:600;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  font-size:14px;color:var(--muted);line-height:1.7;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;border-top:1px solid var(--line);padding-top:12px}
.news-date{font-size:13px;color:var(--gray);font-variant-numeric:tabular-nums}
.news-arrow{width:30px;height:30px;border-radius:50%;background:var(--sand);display:flex;align-items:center;justify-content:center;color:var(--orange);transition:background .2s ease}
.news-card:hover .news-arrow{background:var(--orange);color:#fff}
.news-arrow svg{width:14px;height:14px}

.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;background:var(--white);
  border:1px dashed var(--line);border-radius:var(--r-lg);
}
.empty-state svg{width:44px;height:44px;margin:0 auto 14px;color:var(--gray)}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#A5AFB7;padding:64px 0 0}
.footer-top{border-bottom:1px solid var(--line-dark)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:48px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand .logo-sub{color:#8A939B}
.footer-brand p{font-size:14px;line-height:1.8;color:#98A2AB;max-width:320px}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a,.footer-col span{font-size:14px;color:#98A2AB;transition:color .18s ease}
.footer-col a:hover{color:var(--orange)}
.footer-sub{display:flex;gap:8px;margin-top:14px}
.footer-sub input{
  flex:1;height:44px;padding:0 12px;border-radius:var(--r-input);
  border:1px solid var(--line-dark);background:#1B2227;color:#fff;font-size:14px;
}
.footer-sub input::placeholder{color:#6C757D}
.footer-sub input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 2px rgba(18,181,165,.25)}
.footer-sub button{
  height:44px;padding:0 18px;border:0;border-radius:var(--r-input);
  background:var(--orange);color:#fff;font-weight:700;font-size:14px;cursor:pointer;
  transition:background .2s ease;
}
.footer-sub button:hover{background:var(--orange-dark)}
.footer-bottom{padding:22px 0;text-align:center;font-size:13px;color:#7C858D;line-height:1.8}
.footer-bottom a{color:#98A2AB}
.footer-bottom a:hover{color:var(--orange)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .cap-grid{grid-template-columns:repeat(2,1fr)}
  .spot-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:1023px){
  :root{--sec-desktop:var(--sec-tablet)}
  .nav-menu{display:none}
  .nav-right .countdown{display:none}
  .nav-burger{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-media img{aspect-ratio:16/9}
  .float-card{left:16px;bottom:16px}
  .datastrip-grid{grid-template-columns:repeat(2,1fr);gap:24px 0}
  .datastrip-item:nth-child(3){border-left:0}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .plan-grid{grid-template-columns:1fr;gap:36px}
  .plan-card--hot{transform:none}
  .plan-card--hot:hover{transform:translateY(-2px)}
  .section-head{flex-direction:column;align-items:flex-start;gap:18px}
}
@media (max-width:767px){
  .topbar .tb-mid{display:none}
  .tb-status{font-size:12px}
  .hero{padding:40px 0 52px}
  .hero-actions{width:100%}
  .hero-actions .btn{width:100%}
  .float-card{position:static;margin-top:16px;left:auto;bottom:auto}
  .datastrip-item{padding:6px 16px}
  .datastrip-item b{font-size:24px}
  .cap-grid{grid-template-columns:1fr}
  .spot-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .tl-item{grid-template-columns:1fr;gap:12px}
  .tl-rail{display:none}
  .tl-time small{display:inline;margin-left:8px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .form-card{padding:22px 18px}
}
@media (max-width:600px){
  .container{padding:0 16px}
  :root{--sec-desktop:var(--sec-mobile)}
  .nav{height:62px}
  .logo{font-size:17px}
  .faq-q{min-height:52px;padding:0 16px;font-size:15px}
  .faq-a__inner{margin-left:16px;padding-left:12px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --orange:#F2542D;
  --orange-d:#D9411C;
  --orange-soft:#FDECE6;
  --teal:#12B5A5;
  --teal-soft:#E4F6F4;
  --yellow:#FFC53D;
  --yellow-soft:#FFF6E0;
  --ink:#151A1E;
  --sub:#5C6672;
  --muted:#9AA3AB;
  --sand:#F6F3EE;
  --white:#FFFFFF;
  --dark:#12171A;
  --line:#E6DFD6;
  --line-dark:#2A3238;
  --error:#E14545;
  --r-card:14px;
  --r-lg:18px;
  --r-btn:12px;
  --r-input:10px;
  --r-badge:6px;
  --sh:0 6px 20px rgba(21,26,30,.06);
  --sh-h:0 12px 28px rgba(21,26,30,.10);
  --sec:96px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--sand);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:1px solid rgba(21,26,30,.06);object-fit:cover}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--orange)}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--ink)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink)}
svg{width:1em;height:1em}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.small{font-size:14px;line-height:1.6}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px;border-radius:4px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:var(--white);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 6px 18px rgba(21,26,30,.08)}
.nav{display:flex;align-items:center;gap:28px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.02em}
.logo-mark{width:12px;height:12px;border-radius:3px;background:var(--orange);box-shadow:0 0 0 4px rgba(242,84,45,.16);flex:0 0 auto}
.logo-sub{font-size:12px;font-weight:600;color:var(--sub);letter-spacing:.02em;padding-left:10px;border-left:1px solid var(--line)}
.nav-menu{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-menu li a{display:inline-block;padding:8px 12px;font-size:15px;font-weight:600;color:#38424C;border-radius:8px}
.nav-menu li a:hover{color:var(--orange);background:var(--orange-soft)}
.nav-menu li a.active{color:var(--ink);box-shadow:inset 0 -3px 0 var(--orange)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.countdown{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 12px;border-radius:999px;font-size:13px;font-weight:700;
  background:var(--yellow-soft);color:#7A5600;border:1px solid rgba(255,197,61,.7);
}
.countdown--dark{background:#FFF6E0;color:#6E4D00}
.nav-burger{
  display:none;margin-left:auto;width:42px;height:42px;border:1px solid var(--line);
  background:var(--white);border-radius:10px;position:relative;
}
.nav-burger span,.nav-burger span::before,.nav-burger span::after{
  position:absolute;left:50%;top:50%;width:18px;height:2px;background:var(--ink);border-radius:2px;
  transform:translate(-50%,-50%);content:"";
}
.nav-burger span::before{transform:translate(-50%,-7px)}
.nav-burger span::after{transform:translate(-50%,7px)}
.nav-mask{position:fixed;inset:0;background:rgba(21,26,30,.6);opacity:0;visibility:hidden;transition:.25s;z-index:70}
.nav-mask.open{opacity:1;visibility:visible}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:700;border-radius:999px;border:1.5px solid transparent;
  padding:12px 24px;transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease;
}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 8px 18px rgba(242,84,45,.22)}
.btn-primary:hover{background:var(--orange-d);color:#fff;transform:translateY(-2px)}
.btn-primary:active{transform:translateY(1px)}
.btn-primary:disabled{background:#E8C3B8;color:#fff;cursor:not-allowed;box-shadow:none}
.btn-ghost{background:#fff;border-color:var(--orange);color:var(--orange)}
.btn-ghost:hover{background:var(--orange-soft);color:var(--orange-d)}
.btn-slim{padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--orange)}
.link-arrow svg{width:14px;height:14px;transition:transform .2s ease}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec) 0}
.section--white{background:var(--white)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:800;letter-spacing:.14em;color:var(--orange);text-transform:uppercase}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--orange);display:inline-block}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.25;margin-top:10px}
.sec-head p{color:var(--sub);font-size:15px;margin-top:10px;max-width:640px}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--r-badge);
  font-size:12px;font-weight:700;letter-spacing:.04em;
}
.badge-teal{background:var(--teal-soft);color:#0A7C71}
.badge-orange{background:var(--orange-soft);color:var(--orange-d)}
.badge-yellow{background:var(--yellow-soft);color:#7A5600}
.badge-grey{background:#EEF1F3;color:var(--sub)}
.dot{width:7px;height:7px;border-radius:50%;display:inline-block;background:currentColor}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:var(--white);border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--sub)}
.breadcrumb a{color:var(--sub)}
.breadcrumb a:hover{color:var(--orange)}
.bc-sep{color:#C9C1B7}
.bc-now{color:var(--ink);font-weight:600;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头 ---------- */
.article-head{background:var(--white);padding:36px 0 44px;position:relative;overflow:hidden}
.article-head::after{
  content:"";position:absolute;right:-80px;top:-60px;width:340px;height:340px;border-radius:50%;
  border:10px solid rgba(18,181,165,.10);pointer-events:none;
}
.article-head .inner{max-width:820px;position:relative;z-index:1}
.article-head h1{font-size:clamp(28px,3.6vw,44px);font-weight:800;line-height:1.22;margin:16px 0 18px;letter-spacing:-.02em}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:14px;color:var(--sub)}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta .sep{width:1px;height:14px;background:var(--line);display:inline-block}
.kw-line{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.kw-line .tag{background:var(--sand);border:1px solid var(--line);color:var(--sub);font-size:13px;font-weight:600;padding:5px 11px;border-radius:var(--r-badge)}

/* ---------- 正文布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;padding:56px 0 72px;align-items:start}
.article-body{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:44px 48px;box-shadow:var(--sh);max-width:820px;
}
.article-body>*+*{margin-top:20px}
.article-body p{font-size:16px;line-height:1.85;color:#2B333B}
.article-body h2{
  position:relative;font-size:23px;font-weight:700;line-height:1.4;margin-top:40px;padding-left:16px;
}
.article-body h2::before{content:"";position:absolute;left:0;top:6px;width:8px;height:22px;background:var(--orange);border-radius:2px}
.article-body h3{font-size:19px;font-weight:600;margin-top:30px;color:var(--ink)}
.article-body strong{color:var(--ink);font-weight:700}
.article-body a{color:var(--orange);border-bottom:1px solid rgba(242,84,45,.35)}
.article-body a:hover{color:var(--orange-d)}
.article-body ul,.article-body ol{margin-top:16px;display:grid;gap:10px}
.article-body li{position:relative;padding-left:22px;font-size:16px;line-height:1.8;color:#2B333B}
.article-body ul li::before{content:"";position:absolute;left:4px;top:12px;width:7px;height:7px;border-radius:50%;background:var(--teal)}
.article-body ol{counter-reset:li}
.article-body ol li{counter-increment:li;padding-left:30px}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:2px;width:20px;height:20px;border-radius:6px;
  background:var(--teal-soft);color:#0A7C71;font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin-top:26px;padding:18px 22px;background:var(--sand);border-left:4px solid var(--orange);
  border-radius:0 var(--r-card) var(--r-card) 0;color:var(--sub);font-size:15px;line-height:1.85;
}
.article-body img{border-radius:var(--r-card);margin:26px auto;width:100%;height:auto}
.article-body figure{margin:26px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin-top:24px;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:var(--sand);font-weight:700}
.article-body code{background:var(--sand);border:1px solid var(--line);border-radius:6px;padding:2px 6px;font-size:14px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

/* ---------- 空态 ---------- */
.empty-state{
  background:var(--white);border:1px dashed var(--line);border-radius:var(--r-lg);
  padding:64px 32px;text-align:center;box-shadow:var(--sh);
}
.empty-state .glyph{width:64px;height:64px;margin:0 auto 18px;border-radius:16px;background:var(--sand);display:flex;align-items:center;justify-content:center}
.empty-state .glyph svg{width:30px;height:30px;color:var(--orange)}
.empty-state h2{font-size:22px;font-weight:700}
.empty-state p{color:var(--sub);font-size:15px;margin-top:10px}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:96px;display:grid;gap:20px}
.side-card{background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh)}
.side-card h3{font-size:16px;font-weight:700;padding-bottom:12px;border-bottom:1px solid var(--line)}
#tocList{margin-top:14px;display:grid;gap:2px}
#tocList a{display:block;font-size:14px;line-height:1.55;color:var(--sub);padding:7px 10px;border-left:2px solid var(--line);border-radius:0 8px 8px 0}
#tocList a:hover{color:var(--orange);background:var(--orange-soft);border-left-color:var(--orange)}
.side-card--dark{background:var(--dark);border-color:var(--line-dark);color:#E8ECEF}
.side-card--dark h3{color:#fff;border-bottom-color:var(--line-dark)}
.side-card--dark p{color:#A8B2BA;font-size:14px;margin-top:12px}
.side-card--dark .btn{margin-top:16px}
.side-note{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--sub);line-height:1.7}
.side-note .markdot{width:8px;height:8px;border-radius:50%;background:var(--teal);flex:0 0 auto;margin-top:8px}
.side-list{margin-top:12px;display:grid;gap:12px}
.side-list a{display:flex;gap:12px;align-items:center;font-size:14px;color:#39424A;font-weight:600}
.side-list img{width:64px;height:48px;border-radius:10px;flex:0 0 auto}
.side-list a:hover{color:var(--orange)}

/* ---------- 标签 / 上下篇 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}
.post-nav-item{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);padding:18px 20px;
  display:grid;gap:6px;box-shadow:var(--sh);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-nav-item:hover{transform:translateY(-2px);box-shadow:var(--sh-h);border-color:var(--orange);color:var(--ink)}
.post-nav-item .pn-label{font-size:12px;font-weight:800;letter-spacing:.1em;color:var(--orange)}
.post-nav-item .pn-title{font-size:15px;font-weight:600;line-height:1.6}
.post-nav-item--next{text-align:right}

/* ---------- 推荐卡 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-h);border-color:var(--orange)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden}
.card-media img{width:100%;height:100%;border:0;transition:transform .4s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-media .badge{position:absolute;left:12px;top:12px;z-index:2}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:14px;color:var(--sub);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.card-foot svg{width:16px;height:16px;color:var(--orange)}

/* ---------- FAQ ---------- */
.faq-list{background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh)}
.faq-item+.faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;text-align:left;
  background:transparent;border:0;padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink);position:relative;
}
.faq-q:hover{background:var(--sand)}
.faq-q .plus{position:relative;width:16px;height:16px;flex:0 0 auto;transition:transform .25s ease}
.faq-q .plus::before,.faq-q .plus::after{content:"";position:absolute;background:var(--orange);border-radius:2px}
.faq-q .plus::before{left:0;top:7px;width:16px;height:2px}
.faq-q .plus::after{top:0;left:7px;width:2px;height:16px}
.faq-item.open .faq-q{color:var(--orange-d)}
.faq-item.open .faq-q::before{content:"";position:absolute;left:0;top:10px;bottom:10px;width:4px;background:var(--orange);border-radius:0 3px 3px 0}
.faq-item.open .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a .inner{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--sub)}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--dark);color:#E8ECEF;padding:72px 0}
.cta-grid{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center}
.cta-band h2{color:#fff;font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3}
.cta-band p{color:#A8B2BA;font-size:15px;margin-top:14px;max-width:520px}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.cta-points .badge{background:#1B2227;color:#C8D1D8;border:1px solid var(--line-dark)}
.cta-points .badge .dot{background:var(--teal)}
.form-card{background:#fff;border-radius:var(--r-lg);padding:28px;box-shadow:0 18px 42px rgba(0,0,0,.28);color:var(--ink)}
.form-card h3{font-size:18px;font-weight:700}
.form-card .hint{font-size:13px;color:var(--sub);margin-top:6px}
.field{margin-top:16px;display:grid;gap:7px}
.field label{font-size:13px;font-weight:600;color:#39424A}
.field input,.field select,.field textarea{
  width:100%;height:44px;padding:0 13px;border:1px solid var(--line);border-radius:var(--r-input);
  background:#fff;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;padding:11px 13px;resize:vertical;min-height:84px;line-height:1.6}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(18,181,165,.16);
}
.form-card .btn{margin-top:20px}
.form-tip{font-size:12px;color:var(--muted);margin-top:12px;line-height:1.6}
.form-msg{margin-top:12px;font-size:13px;font-weight:600;color:var(--teal);display:none}
.form-msg.show{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#C8D1D8;margin-top:0}
.footer-top{padding:64px 0 40px;border-top:1px solid var(--line-dark)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand .logo{color:#fff;font-size:18px}
.footer-brand p{font-size:14px;color:#98A2AB;line-height:1.8;margin-top:14px}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col li,.footer-col span{font-size:14px;color:#98A2AB;line-height:1.7}
.footer-col a{color:#C8D1D8;font-size:14px}
.footer-col a:hover{color:var(--orange)}
.footer-sub{display:flex;gap:8px;margin-top:14px}
.footer-sub input{
  flex:1;min-width:0;height:42px;padding:0 12px;border-radius:var(--r-input);
  border:1px solid var(--line-dark);background:#1A2025;color:#E8ECEF;
}
.footer-sub input::placeholder{color:#6F7A83}
.footer-sub input:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(18,181,165,.2)}
.footer-sub button{
  height:42px;padding:0 18px;border:0;border-radius:var(--r-input);background:var(--orange);color:#fff;font-weight:700;
}
.footer-sub button:hover{background:var(--orange-d)}
.footer-bottom{border-top:1px solid var(--line-dark);padding:20px 0;text-align:center}
.footer-bottom p{font-size:13px;color:#8B959D}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .nav{gap:18px}
  .logo-sub{display:none}
}
@media (max-width:1023px){
  :root{--sec:72px}
  .nav{height:64px}
  .nav-burger{display:inline-flex}
  .nav-menu{
    position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:#fff;z-index:75;
    flex-direction:column;align-items:stretch;gap:0;padding:86px 20px 28px;margin:0;
    transform:translateX(104%);transition:transform .32s ease;box-shadow:-12px 0 34px rgba(21,26,30,.18);
    overflow-y:auto;
  }
  .nav-menu.open{transform:none}
  .nav-menu li a{display:block;padding:14px 4px;font-size:16px;border-bottom:1px solid var(--line);border-radius:0;background:none}
  .nav-menu li a.active{box-shadow:none;color:var(--orange)}
  .nav-right .countdown{display:none}
  .nav-right{margin-left:auto}
  .article-layout{grid-template-columns:1fr;gap:32px;padding:40px 0 56px}
  .article-side{position:static;order:2}
  .article-body{padding:32px 26px;max-width:none}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .article-head h1{font-size:clamp(24px,6vw,32px)}
  .post-nav{grid-template-columns:1fr}
  .post-nav-item--next{text-align:left}
  .breadcrumb{padding:12px 0}
  .bc-now{max-width:180px}
}
@media (max-width:600px){
  :root{--sec:56px}
  .container{padding:0 16px}
  .rel-grid{grid-template-columns:1fr}
  .article-body{padding:24px 18px;border-radius:var(--r-card)}
  .article-body h2{font-size:20px}
  .btn{width:100%}
  .btn-slim,.link-arrow{width:auto}
  .nav-right .btn{width:auto}
  .footer-grid{grid-template-columns:1fr}
  .faq-q{font-size:15px;padding:16px 18px}
  .faq-a .inner{padding:0 18px 18px}
  .cta-band{padding:56px 0}
  .form-card{padding:22px}
  .article-head::after{display:none}
}

/* roulang page: category1 */
:root{
  --orange:#F2542D;
  --orange-dark:#D9411C;
  --orange-soft:#FDEDE8;
  --teal:#12B5A5;
  --teal-soft:#E6F6F4;
  --yellow:#FFC53D;
  --ink:#151A1E;
  --muted:#5C6672;
  --sand:#F6F3EE;
  --white:#FFFFFF;
  --dark:#12171A;
  --line:#E6DFD6;
  --line-dark:#2A3238;
  --gray:#9AA3AB;
  --error:#E14545;
  --r-card:14px;
  --r-lg:18px;
  --r-btn:999px;
  --r-sm:12px;
  --r-input:10px;
  --r-badge:6px;
  --sh:0 6px 20px rgba(21,26,30,.06);
  --sh-h:0 12px 28px rgba(21,26,30,.10);
  --container:1200px;
  --font:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.75;color:var(--ink);background:var(--sand);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--orange);text-decoration:none}
a:hover{color:var(--orange-dark)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
.tnum{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--teal)}
.eyebrow--light{color:var(--yellow)}
.section{padding:96px 0}
.section--white{background:var(--white)}
.section--sand{background:var(--sand)}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.01em;margin-top:10px}
.section-head p{color:var(--muted);font-size:15px;max-width:620px;margin-top:12px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--orange)}
.text-link svg{width:15px;height:15px;transition:transform .2s}
.text-link:hover svg{transform:translateX(4px)}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:700;line-height:1;padding:14px 26px;border-radius:var(--r-btn);border:1.5px solid transparent;cursor:pointer;transition:background .18s,transform .18s,box-shadow .18s,color .18s,border-color .18s;white-space:nowrap}
.btn svg{width:16px;height:16px;flex:none}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--orange);border-color:var(--orange)}
.btn-ghost:hover{background:var(--orange-soft);color:var(--orange-dark);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--orange)}
.btn-light:hover{background:var(--orange-soft);color:var(--orange-dark);transform:translateY(-2px)}
.btn:disabled,.btn.is-disabled{background:#DFDAD3;color:#948C82;border-color:transparent;cursor:not-allowed;transform:none}
.btn-block{width:100%}
.btn-sm{padding:11px 20px;font-size:14px}

/* ============ 徽章 / 标签 ============ */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;letter-spacing:.04em;padding:6px 12px;border-radius:var(--r-badge);background:var(--sand);color:var(--muted)}
.badge--teal{background:var(--teal-soft);color:#0C8579}
.badge--yellow{background:#FFF6DF;color:#8A6300}
.badge--orange{background:var(--orange-soft);color:var(--orange-dark)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--teal);flex:none}
.dot--orange{background:var(--orange)}
.dot--yellow{background:var(--yellow)}
.param-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.param-row li{font-size:13px;font-weight:600;color:var(--muted);background:var(--sand);border:1px solid var(--line);border-radius:var(--r-badge);padding:4px 10px}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(21,26,30,.08)}
.nav{display:flex;align-items:center;gap:24px;min-height:74px}
.logo{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.01em;flex:none}
.logo:hover{color:var(--ink)}
.logo-mark{position:relative;width:14px;height:14px;border-radius:4px;background:var(--orange);flex:none}
.logo-mark::after{content:"";position:absolute;left:3px;right:3px;top:6px;height:2px;border-radius:2px;background:#fff}
.logo-sub{font-size:12px;font-weight:600;color:var(--muted);padding-left:10px;border-left:1px solid var(--line)}
.nav-menu{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-menu a{position:relative;display:inline-block;padding:26px 0;font-size:15px;font-weight:600;color:var(--ink)}
.nav-menu a:hover{color:var(--orange)}
.nav-menu a.active{color:var(--orange)}
.nav-menu a.active::after{content:"";position:absolute;left:0;right:0;bottom:16px;height:3px;border-radius:2px;background:var(--orange)}
.nav-right{display:flex;align-items:center;gap:14px;flex:none}
.countdown{display:inline-flex;align-items:center;font-variant-numeric:tabular-nums;font-size:13px;font-weight:700;padding:8px 14px;border-radius:var(--r-btn)}
.countdown--dark{background:var(--yellow);color:var(--ink)}
.nav-burger{display:none;position:relative;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:12px;cursor:pointer;flex:none}
.nav-burger span{position:absolute;left:12px;right:12px;top:50%;height:2px;border-radius:2px;background:var(--ink);transform:translateY(-1px)}
.nav-burger span::before,.nav-burger span::after{content:"";position:absolute;left:0;right:0;height:2px;border-radius:2px;background:var(--ink)}
.nav-burger span::before{top:-7px}
.nav-burger span::after{top:7px}
.nav-mask{position:fixed;inset:0;background:rgba(21,26,30,.6);opacity:0;visibility:hidden;transition:opacity .25s;z-index:65}
.nav-mask.is-on{opacity:1;visibility:visible}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:26px}
.breadcrumb a{color:var(--muted);font-weight:600}
.breadcrumb a:hover{color:var(--orange)}
.breadcrumb .sep{color:#C6BDB1}

/* ============ 分类首屏 ============ */
.page-hero{position:relative;overflow:hidden;padding:40px 0 72px;background:linear-gradient(180deg,#FFFFFF 0%,var(--sand) 100%);border-bottom:1px solid var(--line)}
.page-hero::before{content:"";position:absolute;inset:0;background:url("/assets/images/backpic/back-3.png") center/cover no-repeat;opacity:.06}
.page-hero::after{content:"";position:absolute;right:-140px;top:-150px;width:440px;height:440px;border:1px dashed rgba(18,181,165,.45);border-radius:50%;pointer-events:none}
.page-hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.page-hero h1{font-size:clamp(30px,4.2vw,50px);line-height:1.15;font-weight:800;letter-spacing:-.01em;margin-top:16px}
.page-hero .lead{font-size:17px;line-height:1.8;color:var(--muted);margin-top:20px;max-width:600px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:30px}
.hero-facts{display:flex;flex-wrap:wrap;gap:0;margin-top:40px}
.hero-facts li{padding:0 26px;border-left:1px solid var(--line)}
.hero-facts li:first-child{padding-left:0;border-left:0}
.hero-facts b{display:block;font-size:26px;line-height:1.2;font-weight:800;font-variant-numeric:tabular-nums}
.hero-facts span{font-size:12px;color:var(--muted)}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--sh)}
.hero-float{position:absolute;left:20px;bottom:20px;background:#fff;border-radius:var(--r-card);box-shadow:var(--sh-h);padding:14px 18px;border:1px solid var(--line)}
.hero-float b{display:block;font-size:12px;color:var(--muted);font-weight:600}
.hero-float .countdown--dark{margin-top:6px;background:var(--dark);color:var(--yellow)}

/* ============ 筛选 chips ============ */
.chip-bar{display:flex;gap:10px;overflow-x:auto;padding:6px 0 14px;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.chip-bar::-webkit-scrollbar{display:none}
.chip{flex:none;font-size:14px;font-weight:600;color:var(--muted);background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);padding:9px 18px;cursor:pointer;transition:.2s}
.chip:hover{border-color:var(--orange);color:var(--orange)}
.chip.is-active{background:var(--orange);border-color:var(--orange);color:#fff}

/* ============ 分类主体布局 ============ */
.cat-layout{display:grid;grid-template-columns:236px 1fr;gap:40px;align-items:start}
.anchor-nav{position:sticky;top:100px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;box-shadow:var(--sh)}
.anchor-nav h3{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.08em;padding:6px 12px 12px}
.anchor-nav a{display:block;font-size:14px;font-weight:600;color:var(--muted);padding:10px 12px;border-radius:10px;transition:.18s}
.anchor-nav a:hover{background:var(--sand);color:var(--ink)}
.anchor-nav a.is-active{background:var(--orange-soft);color:var(--orange-dark)}
.anchor-nav .anchor-cta{margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}

.list-stack{display:grid;gap:20px}
.list-card{display:grid;grid-template-columns:290px 1fr;gap:24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:18px;transition:transform .22s,box-shadow .22s,border-color .22s}
.list-card:hover{transform:translateY(-2px);box-shadow:var(--sh-h);border-color:var(--orange)}
.list-card-media img{width:100%;aspect-ratio:5/3;object-fit:cover;border-radius:var(--r-sm);border:1px solid var(--line)}
.list-card-body h3{font-size:20px;font-weight:600;line-height:1.4;margin-top:6px}
.list-card-body p{font-size:14px;color:var(--muted);margin-top:10px}
.list-card-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:18px;flex-wrap:wrap}
.empty-state{display:none;text-align:center;padding:70px 24px;background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg)}
.empty-state svg{width:44px;height:44px;color:var(--teal);margin:0 auto 14px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:18px}

/* ============ 数据条 ============ */
.stat-band{background:var(--dark);color:#fff;padding:56px 0}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.stat-grid b{display:block;font-size:clamp(28px,3.4vw,40px);font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums;color:var(--yellow)}
.stat-grid h3{font-size:16px;font-weight:700;margin-top:12px;color:#fff}
.stat-grid p{font-size:14px;color:#98A2AB;margin-top:8px}

/* ============ 适用场景 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.scene-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px;transition:.22s}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-h);border-color:var(--orange)}
.scene-card .scene-ico{width:42px;height:42px;border-radius:12px;background:var(--teal-soft);color:var(--teal);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.scene-card .scene-ico svg{width:22px;height:22px}
.scene-card h3{font-size:18px;font-weight:700}
.scene-card p{font-size:14px;color:var(--muted);margin-top:10px}

/* ============ 流程时间线 ============ */
.flow{max-width:880px}
.flow-item{display:grid;grid-template-columns:120px 1fr;gap:24px}
.flow-time{font-size:14px;font-weight:700;color:var(--teal);font-variant-numeric:tabular-nums;padding-top:4px}
.flow-body{position:relative;border-left:2px solid var(--teal);padding:0 0 34px 28px}
.flow-item:last-child .flow-body{padding-bottom:0}
.flow-body::before{content:"";position:absolute;left:-7px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 4px var(--white),0 0 0 5px var(--line)}
.section--sand .flow-body::before{box-shadow:0 0 0 4px var(--sand),0 0 0 5px var(--line)}
.flow-body h3{font-size:18px;font-weight:600}
.flow-body p{font-size:14px;color:var(--muted);margin-top:8px}
.flow-body .param-row{margin-top:12px}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:12px;overflow:hidden;transition:border-color .2s,box-shadow .2s}
.faq-item.is-open{border-color:var(--orange);box-shadow:var(--sh)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;background:none;border:0;cursor:pointer;padding:18px 20px;font-size:16px;font-weight:600;color:var(--ink)}
.faq-item.is-open .faq-q{color:var(--orange-dark)}
.faq-icon{position:relative;flex:none;width:20px;height:20px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--orange);border-radius:2px;transition:transform .26s}
.faq-icon::before{left:0;right:0;top:9px;height:2px}
.faq-icon::after{top:0;bottom:0;left:9px;width:2px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--muted)}

/* ============ CTA 带 ============ */
.cta-band{background:var(--dark);color:#fff;padding:88px 0}
.cta-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:start}
.cta-grid h2{font-size:clamp(24px,2.6vw,34px);line-height:1.28;font-weight:700;margin-top:16px;color:#fff}
.cta-grid .cta-desc{font-size:15px;color:#98A2AB;margin-top:18px}
.cta-list{margin-top:26px;display:grid;gap:12px}
.cta-list li{display:flex;gap:10px;font-size:14px;color:#D7DDE2}
.cta-list svg{width:18px;height:18px;color:var(--teal);flex:none;margin-top:3px}
.form-card{background:#fff;border-radius:var(--r-lg);padding:28px;box-shadow:0 20px 50px rgba(0,0,0,.28)}
.form-card h3{font-size:20px;font-weight:700;color:var(--ink)}
.form-card .form-hint{font-size:13px;color:var(--muted);margin-top:8px}
.field{margin-top:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink);margin-bottom:7px}
.field input,.field select,.field textarea{width:100%;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-input);background:#fff;color:var(--ink);transition:border-color .18s,box-shadow .18s}
.field textarea{height:92px;padding:12px 14px;resize:vertical;line-height:1.6}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(18,181,165,.16)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-card .btn{margin-top:22px}
.form-note{font-size:12px;color:var(--muted);margin-top:12px;text-align:center}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#B8C0C7;font-size:14px}
.footer-top{padding:72px 0 48px;border-top:1px solid var(--line-dark)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1.2fr;gap:40px}
.footer-brand .logo{color:#fff;font-size:18px;margin-bottom:18px}
.footer-brand .logo:hover{color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;color:#98A2AB;max-width:360px}
.footer-brand .small{font-size:13px;color:#6F7A83}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.04em}
.footer-col ul{display:grid;gap:12px}
.footer-col a,.footer-col span{font-size:14px;color:#B8C0C7}
.footer-col a:hover{color:var(--orange)}
.footer-sub{display:flex;gap:8px;margin-top:16px}
.footer-sub input{flex:1;min-width:0;height:44px;padding:0 14px;border:1px solid var(--line-dark);border-radius:var(--r-input);background:#1B2226;color:#fff}
.footer-sub input::placeholder{color:#6F7A83}
.footer-sub input:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(18,181,165,.18)}
.footer-sub button{flex:none;height:44px;padding:0 20px;border:0;border-radius:var(--r-input);background:var(--orange);color:#fff;font-weight:700;cursor:pointer;transition:background .18s}
.footer-sub button:hover{background:var(--orange-dark)}
.footer-bottom{border-top:1px solid var(--line-dark);padding:22px 0;text-align:center}
.footer-bottom p{font-size:13px;color:#6F7A83}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:28px}
}
@media (max-width:1023px){
  .nav-menu{position:fixed;top:0;right:0;bottom:0;width:290px;max-width:82vw;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:92px 24px 28px;margin:0;transform:translateX(100%);transition:transform .3s ease;z-index:70;box-shadow:-12px 0 34px rgba(0,0,0,.14);overflow-y:auto}
  .nav-menu.is-open{transform:translateX(0)}
  .nav-menu a{display:block;padding:16px 0;font-size:16px;border-bottom:1px solid var(--line)}
  .nav-menu a.active::after{display:none}
  .nav-burger{display:block;margin-left:auto}
  .nav-right{margin-left:0}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media img{aspect-ratio:16/9}
  .cat-layout{grid-template-columns:1fr;gap:24px}
  .anchor-nav{position:static;display:flex;gap:8px;overflow-x:auto;padding:12px;scrollbar-width:none}
  .anchor-nav::-webkit-scrollbar{display:none}
  .anchor-nav h3{display:none}
  .anchor-nav a{flex:none;white-space:nowrap;padding:8px 14px;background:var(--sand)}
  .anchor-nav .anchor-cta{margin:0;padding:0;border:0;display:flex;flex:none}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:72px 0}
}
@media (max-width:767px){
  .list-card{grid-template-columns:1fr}
  .list-card-media img{aspect-ratio:16/9}
  .flow-item{grid-template-columns:1fr;gap:8px}
  .flow-time{padding-top:0}
  .flow-body{padding-left:22px}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:600px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .logo{font-size:17px}
  .logo-sub{display:none}
  .nav{gap:12px;min-height:66px}
  .nav-right .countdown{display:none}
  .nav-right .btn{padding:10px 16px;font-size:14px}
  .hero-facts{gap:20px 0}
  .hero-facts li{padding:0 18px}
  .hero-facts b{font-size:22px}
  .hero-actions .btn{width:100%}
  .scene-grid{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .stat-band,.cta-band{padding:48px 0}
  .form-card{padding:22px}
}

/* roulang page: category2 */
:root{
  --orange:#F2542D;
  --orange-dark:#D9411C;
  --orange-soft:#FDEDE7;
  --teal:#12B5A5;
  --teal-soft:#E4F6F3;
  --yellow:#FFC53D;
  --ink:#151A1E;
  --sub:#5C6672;
  --sand:#F6F3EE;
  --white:#FFFFFF;
  --dark:#12171A;
  --line:#E6DFD6;
  --line-dark:#2A3238;
  --muted:#9AA3AB;
  --danger:#E14545;
  --radius-card:14px;
  --radius-big:18px;
  --radius-input:10px;
  --radius-badge:6px;
  --shadow-card:0 6px 20px rgba(21,26,30,.06);
  --shadow-hover:0 12px 28px rgba(21,26,30,.10);
  --shadow-nav:0 6px 18px rgba(21,26,30,.08);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--sand);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
svg{display:block}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--white{background:var(--white)}
.section--dark{background:var(--dark);color:#EDF1F3}
.section--tight{padding-top:0}
.small{font-size:14px;line-height:1.6;color:var(--sub)}
.section--dark .small{color:#98A2AB}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--teal);
  outline-offset:2px;
}

/* ============ 顶部状态条 ============ */
.topbar{background:var(--dark);color:#DCE3E7;font-size:13px;border-bottom:1px solid var(--line-dark)}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;height:40px}
.topbar-status{display:flex;align-items:center;gap:10px;min-width:0}
.topbar-phrase{color:#98A2AB;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.status-badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;letter-spacing:.04em;padding:3px 10px;border-radius:var(--radius-badge);border:1px solid var(--line-dark)}
.status-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--teal);flex:none}
.status-badge--warn .dot{background:var(--yellow)}
.status-badge--hot .dot{background:var(--orange)}

/* ============ 倒计时 ============ */
.countdown{
  display:inline-flex;align-items:center;gap:6px;
  font-weight:700;font-size:14px;letter-spacing:.02em;
  padding:7px 16px;border-radius:999px;
  font-variant-numeric:tabular-nums;
  white-space:nowrap;
}
.countdown--signal{background:var(--yellow);color:#3A2A00}
.countdown--dark{background:var(--sand);color:var(--ink);border:1px solid var(--line);font-size:13px;padding:7px 14px}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--white);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-nav)}
.nav{display:flex;align-items:center;gap:28px;height:72px}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--ink);
  white-space:nowrap;
}
.logo-mark{
  width:14px;height:14px;flex:none;border-radius:3px;
  background:var(--orange);
  box-shadow:0 0 0 4px var(--orange-soft);
  position:relative;
}
.logo-mark::after{
  content:"";position:absolute;left:50%;top:-6px;width:2px;height:5px;
  transform:translateX(-50%);background:var(--orange);border-radius:2px;
}
.logo-sub{font-size:12px;font-weight:500;color:var(--sub);letter-spacing:.02em;padding-left:10px;border-left:1px solid var(--line)}
.nav-menu{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-menu a{
  position:relative;display:inline-block;
  font-size:15px;font-weight:600;color:#333B42;
  padding:6px 0;transition:color .2s ease;
}
.nav-menu a::after{
  content:"";position:absolute;left:0;right:0;bottom:-27px;height:3px;
  background:var(--orange);border-radius:3px 3px 0 0;
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-menu a:hover{color:var(--orange)}
.nav-menu a:hover::after,.nav-menu a.active::after{transform:scaleX(1)}
.nav-menu a.active{color:var(--ink)}
.nav-right{display:flex;align-items:center;gap:14px}
.nav-burger{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:var(--white);
  align-items:center;justify-content:center;flex:none;
}
.nav-burger span,.nav-burger span::before,.nav-burger span::after{
  content:"";display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,background .2s ease;
}
.nav-burger span::before{transform:translateY(-6px)}
.nav-burger span::after{transform:translateY(4px)}
body.nav-open .nav-burger span{background:transparent}
body.nav-open .nav-burger span::before{transform:translateY(0) rotate(45deg)}
body.nav-open .nav-burger span::after{transform:translateY(-2px) rotate(-45deg)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:700;line-height:1.2;
  padding:14px 28px;border-radius:999px;
  border:1.5px solid transparent;
  transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn svg{width:17px;height:17px;flex:none}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 6px 16px rgba(242,84,45,.24)}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{background:var(--white);color:var(--orange);border-color:var(--orange)}
.btn-outline:hover{background:var(--orange-soft);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--ink);padding:14px 6px;border-radius:6px}
.btn-ghost:hover{color:var(--orange)}
.btn-ghost svg{width:16px;height:16px}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:var(--yellow);color:#3A2A00;transform:translateY(-2px)}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}
.btn-block{width:100%}
.btn-sm{padding:9px 18px;font-size:13.5px}

/* ============ 通用板块头 ============ */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:44px}
.eyebrow{
  display:block;font-size:12px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--orange);margin-bottom:10px;
}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
.sec-head .lead{margin-top:12px;font-size:15px;color:var(--sub);max-width:640px}
.sec-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:700;color:var(--orange);white-space:nowrap;
  padding-bottom:4px;border-bottom:2px solid transparent;transition:border-color .2s ease;
}
.sec-link:hover{border-color:var(--orange)}
.sec-link svg{width:15px;height:15px}
.section--dark .eyebrow{color:var(--yellow)}

/* ============ 面包屑 ============ */
.crumbs{background:var(--white);border-bottom:1px solid var(--line);padding:14px 0}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--sub)}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li::after{content:"/";color:#C3BAB0}
.crumbs li:last-child::after{display:none}
.crumbs a:hover{color:var(--orange)}
.crumbs strong{color:var(--ink);font-weight:600}

/* ============ Hero ============ */
.hero{
  position:relative;
  background:var(--white);
  padding:72px 0 80px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(90deg,rgba(21,26,30,.045) 0 1px,transparent 1px 96px);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;right:-180px;top:-140px;width:520px;height:520px;
  border:2px solid rgba(18,181,165,.16);border-radius:50%;pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center}
.hero-status{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:20px}
.tag-date{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;font-weight:600;color:var(--ink);
  background:var(--sand);border:1px solid var(--line);
  padding:5px 12px;border-radius:var(--radius-badge);
}
.tag-date svg{width:14px;height:14px;color:var(--teal)}
.hero h1{
  font-size:clamp(30px,4.2vw,54px);line-height:1.15;font-weight:800;letter-spacing:-.01em;
}
.hero h1 em{font-style:normal;color:var(--orange)}
.hero-sub{margin-top:20px;font-size:16.5px;line-height:1.8;color:var(--sub);max-width:560px}
.hero-cta{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:32px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  margin-top:44px;padding-top:26px;border-top:1px solid var(--line);
}
.hero-stats li{padding:0 18px;border-left:1px solid var(--line)}
.hero-stats li:first-child{padding-left:0;border-left:0}
.hero-stats b{display:block;font-size:clamp(20px,2.2vw,26px);font-weight:800;letter-spacing:-.01em}
.hero-stats span{display:block;font-size:12px;color:var(--sub);margin-top:4px}
.hero-visual{position:relative}
.hero-figure{
  border-radius:var(--radius-big);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  aspect-ratio:4/3;
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-float{
  position:absolute;left:-22px;bottom:26px;
  background:#fff;border-radius:var(--radius-card);
  box-shadow:var(--shadow-hover);border:1px solid var(--line);
  padding:14px 18px;min-width:190px;
}
.hero-float small{display:block;font-size:12px;color:var(--sub);letter-spacing:.04em}
.hero-float b{display:block;font-size:19px;font-weight:800;margin-top:4px}
.hero-float .bar{
  height:4px;border-radius:99px;margin-top:10px;
  background:linear-gradient(90deg,var(--orange),var(--teal));
}

/* ============ 规格 chips ============ */
.chip-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--white)}
.chip-strip .container{display:flex;align-items:center;gap:20px;padding-top:22px;padding-bottom:22px}
.chip-label{font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--sub);white-space:nowrap}
.chip-bar{display:flex;gap:10px;overflow-x:auto;padding-bottom:4px;scrollbar-width:thin}
.chip-bar::-webkit-scrollbar{height:5px}
.chip-bar::-webkit-scrollbar-thumb{background:#D9D1C6;border-radius:99px}
.chip{
  display:inline-flex;align-items:center;gap:7px;flex:none;
  font-size:13.5px;font-weight:600;color:#333B42;
  background:var(--sand);border:1px solid var(--line);
  padding:8px 16px;border-radius:999px;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--teal)}
.chip:hover{background:var(--orange-soft);border-color:var(--orange);color:var(--orange-dark);transform:translateY(-1px)}

/* ============ 产品网格 ============ */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.prod-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.prod-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--orange)}
.prod-media{position:relative;aspect-ratio:1/1;overflow:hidden;background:var(--sand)}
.prod-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.prod-card:hover .prod-media img{transform:scale(1.04)}
.prod-media .badge-float{
  position:absolute;left:14px;top:14px;
  font-size:12px;font-weight:700;letter-spacing:.04em;
  padding:5px 10px;border-radius:var(--radius-badge);
  background:rgba(255,255,255,.94);color:var(--ink);border:1px solid var(--line);
}
.badge-float--rec{background:var(--yellow);border-color:var(--yellow);color:#3A2A00}
.prod-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.prod-model{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--teal)}
.prod-body h3{font-size:18px;font-weight:700;line-height:1.4}
.prod-spec{font-size:14px;color:var(--sub);line-height:1.7}
.prod-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px}
.pill{
  font-size:12px;font-weight:600;color:#41494F;
  background:var(--sand);border:1px solid var(--line);
  padding:4px 10px;border-radius:var(--radius-badge);
}
.prod-foot{margin-top:auto;padding-top:16px;border-top:1px dashed var(--line);display:flex;align-items:center;justify-content:space-between;gap:10px}
.prod-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;font-weight:700;color:var(--orange);
  opacity:.85;transition:opacity .2s ease,gap .2s ease;
}
.prod-card:hover .prod-link{opacity:1;gap:10px}
.prod-link svg{width:15px;height:15px}
.prod-cta{
  display:none;font-size:13px;font-weight:700;color:#fff;background:var(--orange);
  padding:8px 16px;border-radius:999px;
}
.prod-card:hover .prod-cta{display:inline-flex}
.prod-card:hover .prod-link{display:none}

/* ============ 深色数据面板 ============ */
.hud{
  background:var(--dark);color:#EDF1F3;
  border-radius:var(--radius-big);
  border:1px solid var(--line-dark);
  padding:40px;
  position:relative;overflow:hidden;
}
.hud::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:280px;height:280px;
  border:2px solid rgba(18,181,165,.22);border-radius:50%;
}
.hud-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:30px}
.hud h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.3;letter-spacing:-.01em}
.hud-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative}
.hud-cell{
  background:#1A2024;border:1px solid var(--line-dark);border-radius:var(--radius-card);
  padding:22px;
}
.hud-cell b{display:block;font-size:28px;font-weight:800;color:var(--yellow);letter-spacing:-.01em}
.hud-cell span{display:block;font-size:13px;color:#98A2AB;margin-top:8px;line-height:1.6}
.hud-note{margin-top:26px;font-size:13px;color:#98A2AB;position:relative}

/* ============ 场景卡 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.scene-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;display:flex;flex-direction:column;gap:12px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--orange)}
.scene-icon{
  width:46px;height:46px;border-radius:12px;background:var(--teal-soft);
  display:flex;align-items:center;justify-content:center;color:var(--teal);
}
.scene-icon svg{width:22px;height:22px}
.scene-card h3{font-size:17px;font-weight:700}
.scene-card p{font-size:14px;color:var(--sub);line-height:1.7}
.scene-card ul{margin-top:auto;display:flex;flex-direction:column;gap:7px;padding-top:12px;border-top:1px dashed var(--line)}
.scene-card ul li{display:flex;gap:8px;font-size:13.5px;color:#41494F}
.scene-card ul li svg{width:15px;height:15px;color:var(--teal);flex:none;margin-top:4px}

/* ============ 时间线 ============ */
.timeline{display:flex;flex-direction:column;gap:32px;position:relative}
.tl-item{display:grid;grid-template-columns:88px 32px 1fr;gap:0;align-items:flex-start}
.tl-time{font-size:14px;font-weight:700;color:var(--sub);padding-top:2px;letter-spacing:.02em}
.tl-rail{position:relative;display:flex;justify-content:center;align-self:stretch}
.tl-rail::before{content:"";width:2px;background:var(--teal);opacity:.35;position:absolute;top:6px;bottom:-32px;left:50%;transform:translateX(-50%)}
.tl-item:last-child .tl-rail::before{display:none}
.tl-dot{
  position:relative;width:12px;height:12px;border-radius:50%;background:var(--orange);
  box-shadow:0 0 0 4px #fff,0 0 0 5px var(--line);margin-top:5px;z-index:1;
}
.tl-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 24px;box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--orange)}
.tl-card h3{font-size:18px;font-weight:600;margin-bottom:6px}
.tl-card p{font-size:14px;color:var(--sub);line-height:1.75}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tl-item--now .tl-card{border-left:4px solid var(--orange);background:#FFF8F5}

/* ============ FAQ ============ */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:56px;padding:18px 0 18px 0;
  font-size:16px;font-weight:600;text-align:left;color:var(--ink);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--orange)}
.faq-q .plus{
  flex:none;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);position:relative;
  transition:transform .25s ease,background .25s ease,border-color .25s ease;
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink);
  transform:translate(-50%,-50%);border-radius:2px;
}
.faq-q .plus::before{width:11px;height:2px}
.faq-q .plus::after{width:2px;height:11px}
.faq-item.is-open .faq-q{color:var(--orange-dark)}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg);background:var(--orange);border-color:var(--orange)}
.faq-item.is-open .faq-q .plus::before,.faq-item.is-open .faq-q .plus::after{background:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{
  padding:0 0 22px 18px;border-left:4px solid var(--orange);
  font-size:15px;line-height:1.8;color:var(--sub);margin-bottom:4px;
}

/* ============ CTA 带 ============ */
.cta-band{background:var(--dark);color:#EDF1F3;padding:96px 0;position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;left:-140px;top:-120px;width:420px;height:420px;
  border:2px solid rgba(242,84,45,.2);border-radius:50%;
}
.cta-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:start}
.cta-band h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
.cta-band p.lead{margin-top:16px;font-size:15.5px;line-height:1.8;color:#B7C0C7;max-width:520px}
.cta-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.cta-badges .status-badge{border-color:#39434A;color:#DCE3E7}
.cta-list{margin-top:30px;display:flex;flex-direction:column;gap:12px}
.cta-list li{display:flex;gap:10px;font-size:14.5px;color:#C8D1D7}
.cta-list li svg{width:17px;height:17px;color:var(--teal);flex:none;margin-top:4px}
.form-card{
  background:#fff;color:var(--ink);border-radius:var(--radius-big);
  padding:28px;box-shadow:0 18px 40px rgba(0,0,0,.28);
}
.form-card h3{font-size:19px;font-weight:700;margin-bottom:6px}
.form-card .form-hint{font-size:13.5px;color:var(--sub);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;height:44px;padding:0 13px;
  border:1px solid var(--line);border-radius:var(--radius-input);
  background:var(--white);font-size:14.5px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:88px;padding:11px 13px;resize:vertical;line-height:1.6}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(18,181,165,.16);
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-note{font-size:12px;color:var(--sub);margin-top:14px;line-height:1.6}
.form-error{display:none;font-size:12.5px;color:var(--danger);margin-top:12px}
.form-error.is-on{display:block}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#B7C0C7;font-size:14px;border-top:1px solid var(--line-dark)}
.footer-top{padding:72px 0 44px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1.2fr;gap:40px}
.footer-brand .logo{color:#fff;font-size:19px}
.footer-brand .logo .logo-sub{color:#98A2AB;border-color:var(--line-dark)}
.footer-brand p{margin-top:16px;line-height:1.8;color:#98A2AB}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:#B7C0C7;transition:color .2s ease}
.footer-col a:hover{color:var(--orange)}
.footer-sub{display:flex;gap:8px;margin-top:14px}
.footer-sub input{
  flex:1;min-width:0;height:42px;padding:0 12px;
  background:#1A2024;border:1px solid var(--line-dark);border-radius:var(--radius-input);
  color:#EDF1F3;font-size:14px;
}
.footer-sub input::placeholder{color:#6E7A83}
.footer-sub input:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(18,181,165,.18)}
.footer-sub button{
  height:42px;padding:0 18px;border-radius:var(--radius-input);
  background:var(--orange);color:#fff;font-weight:700;font-size:14px;
  transition:background .2s ease,transform .2s ease;
}
.footer-sub button:hover{background:var(--orange-dark);transform:translateY(-1px)}
.footer-bottom{border-top:1px solid var(--line-dark);padding:20px 0;text-align:center}
.footer-bottom p{font-size:13px;color:#8B959D}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .hud-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .cta-band{padding:72px 0}
  .nav{height:66px;gap:16px}
  .nav-menu{
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:flex-start;gap:0;
    background:#fff;border-bottom:1px solid var(--line);
    padding:8px 24px 20px;margin-left:0;
    box-shadow:var(--shadow-nav);
    max-height:0;overflow:hidden;opacity:0;visibility:hidden;
    transition:max-height .3s ease,opacity .25s ease,visibility .25s ease;
  }
  body.nav-open .nav-menu{max-height:420px;opacity:1;visibility:visible;padding-top:14px}
  .nav-menu li{width:100%;border-bottom:1px solid var(--line)}
  .nav-menu li:last-child{border-bottom:0}
  .nav-menu a{display:block;padding:14px 0;font-size:15.5px}
  .nav-menu a::after{display:none}
  .nav-menu a.active{color:var(--orange)}
  .nav-burger{display:flex;margin-left:auto}
  .nav-right .btn{padding:11px 20px;font-size:14px}
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual{order:-1}
  .hero-figure{aspect-ratio:21/9}
  .hero-float{left:auto;right:16px;bottom:-18px;padding:12px 16px;min-width:160px}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:22px 0}
  .hero-stats li:nth-child(3){padding-left:0;border-left:0}
  .tl-item{grid-template-columns:72px 28px 1fr}
  .cta-grid{grid-template-columns:1fr;gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .cta-band{padding:56px 0}
  .topbar .container{height:auto;padding-top:8px;padding-bottom:8px;flex-wrap:wrap;gap:8px}
  .topbar-phrase{display:none}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px}
  .chip-strip .container{flex-direction:column;align-items:flex-start;gap:12px;padding-top:18px;padding-bottom:18px}
  .prod-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .hud{padding:26px}
  .hud-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .hud-cell{padding:18px}
  .hud-cell b{font-size:23px}
  .timeline{gap:0}
  .tl-item{grid-template-columns:1fr;gap:0}
  .tl-time{padding:0 0 8px;font-size:12.5px;letter-spacing:.08em;color:var(--orange)}
  .tl-rail{display:none}
  .tl-card{margin-bottom:16px;padding:20px}
  .faq-q{min-height:52px;font-size:15.5px;padding:16px 0}
  .faq-a-inner{padding-left:14px;font-size:14.5px}
  .field-row{grid-template-columns:1fr;gap:0}
  .form-card{padding:22px}
  .btn-block-mobile{width:100%}
  .hero-cta .btn{width:100%}
  .hero-cta{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-top{padding:52px 0 32px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .hero-stats li{padding:0 12px}
}
@media (max-width:600px){
  .hero-stats b{font-size:19px}
  .prod-body{padding:18px}
  .nav-right .countdown{display:none}
}

/* roulang page: category3 */
:root{
  --brand:#F2542D;
  --brand-dark:#D9411C;
  --teal:#12B5A5;
  --yellow:#FFC53D;
  --ink:#151A1E;
  --muted:#5C6672;
  --sand:#F6F3EE;
  --white:#FFFFFF;
  --dark:#12171A;
  --line:#E6DFD6;
  --line-dark:#2A3238;
  --done:#9AA3AB;
  --err:#E14545;
  --r-card:14px;
  --r-lg:18px;
  --r-btn:12px;
  --r-pill:999px;
  --r-input:10px;
  --r-badge:6px;
  --sh-card:0 6px 20px rgba(21,26,30,.06);
  --sh-hover:0 12px 28px rgba(21,26,30,.10);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink);background:var(--sand);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
section{position:relative}
.section{padding:96px 0}
.section--white{background:var(--white)}
.section--sand{background:var(--sand)}
.section--tight{padding-top:0}

/* ---------- 顶部状态条 ---------- */
.topbar{background:var(--dark);color:#E9EDF0;font-size:13px;height:40px;display:flex;align-items:center}
.topbar .container{display:flex;align-items:center;gap:18px;justify-content:space-between}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0}
.topbar-mid{color:#98A2AB;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.dot{width:8px;height:8px;border-radius:50%;display:inline-block;flex:0 0 auto}
.dot--teal{background:var(--teal);box-shadow:0 0 0 3px rgba(18,181,165,.18)}
.dot--yellow{background:var(--yellow);box-shadow:0 0 0 3px rgba(255,197,61,.18)}
.dot--orange{background:var(--brand);box-shadow:0 0 0 3px rgba(242,84,45,.18)}
.countdown{display:inline-flex;align-items:center;padding:5px 14px;border-radius:var(--r-pill);font-size:12px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
.countdown--light{background:rgba(255,255,255,.10);color:#E9EDF0;border:1px solid #2A3238}
.countdown--dark{background:var(--sand);color:var(--ink);border:1px solid var(--line)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--white);
  border-bottom:1px solid var(--line);transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(21,26,30,.08)}
.nav{display:flex;align-items:center;gap:28px;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.logo-mark{width:14px;height:14px;border-radius:4px;background:var(--brand);position:relative;flex:0 0 auto}
.logo-mark::after{content:"";position:absolute;right:-6px;top:50%;transform:translateY(-50%);width:4px;height:20px;border-radius:2px;background:var(--teal);opacity:.55}
.logo-sub{font-size:12px;font-weight:500;color:var(--muted);letter-spacing:.02em;padding-left:10px;margin-left:6px;border-left:1px solid var(--line)}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-menu a{
  display:inline-block;padding:10px 14px;font-size:15px;font-weight:600;color:#3B444D;
  border-radius:var(--r-btn);position:relative;transition:color .2s ease,background .2s ease;
}
.nav-menu a:hover{color:var(--brand);background:#FDF1ED}
.nav-menu a.active{color:var(--ink)}
.nav-menu a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:2px;background:var(--brand);
}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-burger{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--white);cursor:pointer;position:relative;
}
.nav-burger span,.nav-burger::before,.nav-burger::after{
  content:"";position:absolute;left:12px;right:12px;height:2px;background:var(--ink);border-radius:2px;transition:.25s ease;
}
.nav-burger span{top:21px}
.nav-burger::before{top:14px}
.nav-burger::after{top:28px}
.nav-burger.is-open span{opacity:0}
.nav-burger.is-open::before{transform:translateY(7px) rotate(45deg)}
.nav-burger.is-open::after{transform:translateY(-7px) rotate(-45deg)}

/* 移动抽屉 */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);background:var(--white);z-index:90;
  transform:translateX(102%);transition:transform .3s ease;padding:24px 22px;overflow-y:auto;
  border-left:1px solid var(--line);display:flex;flex-direction:column;gap:20px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--line);background:var(--white);font-size:20px;line-height:1;cursor:pointer;color:var(--ink)}
.drawer-menu{display:flex;flex-direction:column;gap:2px}
.drawer-menu a{padding:14px 12px;border-radius:var(--r-btn);font-weight:600;color:#3B444D;border-bottom:1px solid var(--line)}
.drawer-menu a.active{color:var(--brand);background:#FDF1ED;border-bottom-color:transparent}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px}
.overlay{position:fixed;inset:0;background:rgba(21,26,30,.6);opacity:0;visibility:hidden;transition:.25s ease;z-index:80}
.overlay.is-open{opacity:1;visibility:visible}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:700;border-radius:var(--r-pill);padding:14px 28px;
  border:1.5px solid transparent;cursor:pointer;transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn svg{width:18px;height:18px;flex:0 0 auto}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:var(--white);color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:#FDF1ED;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000;transform:translateY(-2px)}
.btn:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
.btn[disabled],.btn.is-disabled{background:#D8D2CA;color:#8B8377;border-color:transparent;cursor:not-allowed;transform:none}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand)}
.link-arrow svg{width:16px;height:16px;transition:transform .2s ease}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;letter-spacing:.04em;
  padding:5px 10px;border-radius:var(--r-badge);line-height:1;
}
.badge-teal{background:rgba(18,181,165,.12);color:#0C8578}
.badge-yellow{background:rgba(255,197,61,.22);color:#8A6200}
.badge-orange{background:rgba(242,84,45,.12);color:var(--brand-dark)}
.badge-grey{background:#EDE8E1;color:var(--muted)}
.tag{display:inline-block;font-size:12px;color:var(--muted);background:var(--sand);border-radius:var(--r-badge);padding:5px 10px;line-height:1.2}
.tag--line{background:transparent;border:1px solid var(--line)}

/* ---------- 眉标 / 板块标题 ---------- */
.eyebrow{font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--brand);margin-bottom:12px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700}
.section-head p{color:var(--muted);font-size:15px;margin-top:10px;max-width:640px}
.section-head .link-arrow{padding-bottom:8px;flex:0 0 auto}

/* ---------- 页面横幅 ---------- */
.page-hero{
  background:linear-gradient(180deg,rgba(18,23,26,.92),rgba(18,23,26,.86)),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;color:#fff;padding:72px 0 64px;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:4px;
  background:linear-gradient(90deg,var(--brand),var(--teal));
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:#B9C2C9;margin-bottom:20px}
.crumbs a:hover{color:var(--yellow)}
.crumbs span.sep{color:#5C6672}
.crumbs span.now{color:#fff;font-weight:600}
.page-hero h1{font-size:clamp(30px,4.2vw,54px);line-height:1.15;font-weight:800;max-width:880px}
.page-hero h1 em{font-style:normal;color:var(--yellow)}
.page-hero .lead{margin-top:20px;font-size:17px;line-height:1.85;color:#D3D9DE;max-width:720px}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-facts .badge{background:rgba(255,255,255,.10);color:#E9EDF0;border:1px solid #2A3238}

/* ---------- 筛选 chips ---------- */
.chips-wrap{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:72px;z-index:40}
.chips{display:flex;gap:10px;overflow-x:auto;padding:14px 0;scrollbar-width:thin}
.chips::-webkit-scrollbar{height:4px}
.chips::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px}
.chip{
  flex:0 0 auto;font-size:14px;font-weight:600;color:var(--muted);background:var(--sand);
  border:1px solid transparent;border-radius:var(--r-pill);padding:9px 18px;cursor:pointer;transition:.2s ease;
}
.chip:hover{color:var(--brand);border-color:#F7C6B8}
.chip.is-active{background:var(--brand);color:#fff}
.chip:focus-visible{outline:2px solid var(--teal);outline-offset:2px}

/* ---------- 深色 HUD 指标 ---------- */
.hud{background:var(--dark);color:#fff;padding:88px 0}
.hud-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.hud-item{border:1px solid var(--line-dark);border-radius:var(--r-card);padding:24px 22px;background:rgba(255,255,255,.02)}
.hud-item .num{font-size:clamp(28px,3vw,40px);font-weight:800;line-height:1.1;color:#fff}
.hud-item .num small{font-size:15px;font-weight:600;color:var(--yellow);margin-left:4px}
.hud-item .cap{margin-top:10px;font-size:13px;color:#98A2AB;line-height:1.7}
.hud-top{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.hud-top h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700}
.hud-top p{color:#98A2AB;font-size:15px;margin-top:10px;max-width:620px}

/* ---------- 产品网格 ---------- */
.grid-products{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.product{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-card);display:flex;flex-direction:column;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.product:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:var(--brand)}
.product-media{position:relative;aspect-ratio:1/1;overflow:hidden;background:var(--sand)}
.product-media img{width:100%;height:100%;object-fit:cover;border-bottom:1px solid var(--line)}
.product-media .badge{position:absolute;top:12px;left:12px}
.product-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.product-body h3{font-size:18px;font-weight:700;line-height:1.4}
.product-body .spec{font-size:14px;color:var(--muted);line-height:1.7}
.product-body .meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px}
.product-body .link-arrow{margin-top:auto}

/* ---------- 时间线 ---------- */
.timeline{margin-top:8px}
.tl-item{position:relative;padding-left:140px;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:104px;top:8px;bottom:-8px;width:2px;background:rgba(18,181,165,.35)}
.tl-item:last-child::before{display:none}
.tl-item::after{
  content:"";position:absolute;left:98px;top:8px;width:14px;height:14px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 0 4px #fff;
}
.tl-time{position:absolute;left:0;top:4px;width:88px;text-align:right;font-size:14px;font-weight:700;color:var(--muted);line-height:1.5}
.tl-time small{display:block;font-size:12px;font-weight:500;color:var(--done)}
.tl-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);padding:18px 20px;
  box-shadow:var(--sh-card);
}
.tl-card h3{font-size:18px;font-weight:600;margin-bottom:8px}
.tl-card p{font-size:14px;color:var(--muted)}
.tl-card .meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.tl-item.is-current .tl-card{border-left:4px solid var(--brand);background:#FFF8F5}

/* ---------- 现场交错大图 ---------- */
.shots{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.shot{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-card);background:var(--white)}
.shot img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease}
.shot:hover img{transform:scale(1.03)}
.shot-cap{
  position:absolute;left:0;right:0;bottom:0;padding:18px 20px;color:#fff;
  background:linear-gradient(180deg,rgba(18,23,26,0),rgba(18,23,26,.86));
  display:flex;align-items:flex-end;justify-content:space-between;gap:16px;
}
.shot-cap strong{font-size:17px;font-weight:700;display:block}
.shot-cap span{font-size:13px;color:#D3D9DE}
.shot:nth-child(2){margin-top:44px}
.shot:nth-child(4){margin-top:44px}

/* ---------- FAQ ---------- */
.faq{background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-card)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;background:none;border:0;text-align:left;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:18px 22px;min-height:56px;font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;position:relative;transition:background .2s ease;
}
.faq-q:hover{background:#FBF8F4}
.faq-q:focus-visible{outline:2px solid var(--teal);outline-offset:-2px}
.faq-q .plus{width:22px;height:22px;position:relative;flex:0 0 auto}
.faq-q .plus::before,.faq-q .plus::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .25s ease}
.faq-q .plus::before{left:10px;top:3px;width:2px;height:16px}
.faq-q .plus::after{top:10px;left:3px;height:2px;width:16px}
.faq-item.is-open .faq-q{background:#FFF8F5}
.faq-item.is-open .faq-q::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--brand)}
.faq-item.is-open .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--muted);max-width:900px}

/* ---------- CTA 带 ---------- */
.cta{background:var(--dark);color:#fff;padding:88px 0}
.cta-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:start}
.cta h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700}
.cta .lead{margin-top:16px;color:#B9C2C9;font-size:15px;line-height:1.85;max-width:520px}
.cta-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.cta-meta .badge{background:rgba(255,255,255,.08);color:#E9EDF0;border:1px solid var(--line-dark)}
.cta-list{margin-top:28px;display:grid;gap:12px}
.cta-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#D3D9DE}
.cta-list svg{width:18px;height:18px;flex:0 0 auto;color:var(--teal);margin-top:3px}
.form-card{background:var(--white);border-radius:var(--r-lg);padding:28px;box-shadow:0 20px 50px rgba(0,0,0,.28)}
.form-card h3{font-size:20px;font-weight:700;margin-bottom:6px}
.form-card .hint{font-size:13px;color:var(--muted);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--ink)}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-input);padding:0 12px;font-size:15px;color:var(--ink);
  background:var(--white);transition:border-color .2s ease,box-shadow .2s ease;font-family:inherit;
}
.field input,.field select{height:44px}
.field textarea{min-height:88px;padding:11px 12px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 2px rgba(18,181,165,.28)}
.field input.is-error,.field textarea.is-error{border-color:var(--err);box-shadow:0 0 0 2px rgba(225,69,69,.18)}
.form-note{font-size:12px;color:var(--muted);margin-top:12px;line-height:1.6}
.form-msg{margin-top:12px;font-size:13px;font-weight:600;display:none}
.form-msg.is-ok{display:block;color:#0C8578}
.form-msg.is-bad{display:block;color:var(--err)}

/* ---------- 空态 ---------- */
.empty{text-align:center;padding:56px 20px;border:1px dashed var(--line);border-radius:var(--r-lg);background:var(--white)}
.empty svg{width:40px;height:40px;color:var(--brand);margin:0 auto 14px}
.empty p{color:var(--muted);font-size:15px;margin-bottom:18px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#B9C2C9;border-top:1px solid var(--line-dark);padding-top:64px;font-size:14px}
.footer-top{padding-bottom:48px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.1fr 1.2fr;gap:40px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand p{line-height:1.8;color:#98A2AB;font-size:14px}
.footer-brand .small{font-size:12px;color:#6E7881}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:#B9C2C9;transition:color .2s ease}
.footer-col a:hover{color:var(--brand)}
.footer-col span{color:#98A2AB}
.footer-sub{display:flex;gap:8px;margin-top:8px}
.footer-sub input{
  flex:1;min-width:0;height:42px;border-radius:var(--r-input);border:1px solid var(--line-dark);background:#1A2126;
  color:#fff;padding:0 12px;font-size:14px;font-family:inherit;
}
.footer-sub input::placeholder{color:#6E7881}
.footer-sub input:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 2px rgba(18,181,165,.28)}
.footer-sub button{
  height:42px;padding:0 18px;border-radius:var(--r-input);border:0;background:var(--brand);color:#fff;
  font-weight:700;font-size:14px;cursor:pointer;transition:background .2s ease;
}
.footer-sub button:hover{background:var(--brand-dark)}
.footer-bottom{border-top:1px solid var(--line-dark);padding:20px 24px;text-align:center;font-size:13px;color:#8B949C}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .grid-products{grid-template-columns:repeat(2,1fr)}
  .hud-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  .nav-menu{display:none}
  .nav-burger{display:block}
  .nav-right .countdown{display:none}
  .nav{gap:16px;height:64px}
  .logo-sub{display:none}
  .section{padding:72px 0}
  .hud{padding:72px 0}
  .cta{padding:72px 0}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .shots{grid-template-columns:1fr;gap:24px}
  .shot:nth-child(2),.shot:nth-child(4){margin-top:0}
  .chips-wrap{top:64px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .topbar{height:auto;padding:8px 0}
  .topbar .container{flex-wrap:wrap;gap:8px}
  .topbar-mid{display:none}
  .page-hero{padding:52px 0 48px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px}
  .tl-item{padding-left:0;padding-bottom:24px}
  .tl-item::before{left:6px;top:26px;bottom:-6px}
  .tl-item::after{left:0;top:22px}
  .tl-time{position:static;width:auto;text-align:left;margin-bottom:10px;padding-left:26px}
  .tl-card{padding:16px}
}
@media (max-width:600px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .grid-products{grid-template-columns:1fr}
  .hud-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .btn-inline{width:auto}
  .form-card{padding:22px 18px}
  .faq-q{padding:16px 18px;min-height:52px}
  .faq-a p{padding:0 18px 18px}
}

/* roulang page: category4 */
:root{
  --orange:#F2542D;
  --orange-d:#D9411C;
  --orange-l:#FDEDE8;
  --cyan:#12B5A5;
  --cyan-d:#0B7A70;
  --cyan-l:#E4F6F4;
  --yellow:#FFC53D;
  --ink:#151A1E;
  --text:#5C6672;
  --sand:#F6F3EE;
  --white:#FFFFFF;
  --dark:#12171A;
  --dark-2:#1B2227;
  --line:#E6DFD6;
  --line-dark:#2A3238;
  --gray:#9AA3AB;
  --danger:#E14545;
  --r-card:14px;
  --r-lg:18px;
  --r-input:10px;
  --r-badge:6px;
  --shadow:0 6px 20px rgba(21,26,30,.06);
  --shadow-h:0 12px 28px rgba(21,26,30,.10);
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.small{font-size:13px;line-height:1.7;}

/* ============ 容器 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--white);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(21,26,30,.08);}
.nav{display:flex;align-items:center;gap:22px;min-height:74px;}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--ink);
  white-space:nowrap;
}
.logo-mark{
  width:14px;height:14px;border-radius:3px;flex:none;
  background:var(--orange);
  box-shadow:5px 0 0 rgba(242,84,45,.34),10px 0 0 rgba(242,84,45,.16);
}
.logo-sub{
  font-size:12px;font-weight:600;color:var(--text);
  padding-left:12px;border-left:1px solid var(--line);
  letter-spacing:0;
}
.nav-menu{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-menu a{
  position:relative;display:block;padding:26px 0;
  font-size:15px;font-weight:600;color:var(--ink);
  transition:color .2s;
}
.nav-menu a::after{
  content:"";position:absolute;left:0;right:0;bottom:17px;height:3px;border-radius:2px;
  background:var(--orange);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-menu a:hover{color:var(--orange-d);}
.nav-menu a:hover::after,.nav-menu a.active::after{transform:scaleX(1);}
.nav-menu a.active{color:var(--orange-d);}
.nav-right{display:flex;align-items:center;gap:14px;}
.countdown{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 14px;border-radius:999px;
  font-size:13px;font-weight:700;letter-spacing:.02em;white-space:nowrap;
}
.countdown::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--yellow);flex:none;
}
.countdown--dark{background:var(--dark);color:#fff;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:700;cursor:pointer;border:none;
  transition:transform .22s ease,background .22s ease,color .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn svg{width:18px;height:18px;flex:none;}
.btn-primary{
  background:var(--orange);color:#fff;
  padding:14px 28px;border-radius:999px;font-size:15px;
}
.btn-primary:hover{background:var(--orange-d);transform:translateY(-2px);box-shadow:0 10px 22px rgba(242,84,45,.28);color:#fff;}
.btn-primary:active{transform:translateY(0);}
.btn-primary:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
.btn-primary:disabled{background:#D9C9C2;color:#fff;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-line{
  background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.55);
  padding:13px 26px;border-radius:12px;font-size:15px;
}
.btn-line:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;transform:translateY(-2px);}
.btn-line:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
.nav-right .btn-primary{padding:11px 22px;font-size:14px;}
.nav-burger{
  display:none;width:44px;height:44px;flex:none;position:relative;
  border:1px solid var(--line);border-radius:12px;background:#fff;cursor:pointer;
}
.nav-burger span{position:absolute;top:21px;left:12px;right:12px;height:2px;background:var(--ink);border-radius:2px;}
.nav-burger span::before,.nav-burger span::after{
  content:"";position:absolute;left:0;right:0;height:2px;background:var(--ink);border-radius:2px;
}
.nav-burger span::before{top:-6px;}
.nav-burger span::after{top:6px;}
.nav-burger:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(21,26,30,.6);
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:330px;max-width:88vw;
  background:#fff;z-index:90;display:flex;flex-direction:column;
  padding:20px;overflow-y:auto;
  transform:translateX(100%);transition:transform .3s ease;
  box-shadow:-12px 0 32px rgba(21,26,30,.14);
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line);}
.drawer-head strong{font-size:15px;font-weight:800;}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;
  color:var(--ink);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-close:hover{border-color:var(--orange);color:var(--orange-d);}
.drawer-menu{margin-top:12px;display:grid;gap:4px;}
.drawer-menu a{
  display:block;padding:13px 12px;border-radius:10px;
  font-size:15px;font-weight:600;color:var(--ink);transition:.2s;
}
.drawer-menu a:hover{background:var(--sand);color:var(--orange-d);}
.drawer-menu a.active{background:var(--orange-l);color:var(--orange-d);}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);display:grid;gap:12px;}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--dark) url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#fff;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(18,23,26,.95) 0%,rgba(18,23,26,.86) 46%,rgba(18,23,26,.58) 100%);
}
.page-hero .container{position:relative;z-index:2;padding-top:64px;padding-bottom:72px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:26px;}
.breadcrumb a{color:rgba(255,255,255,.85);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;}
.breadcrumb .sep{color:rgba(255,255,255,.35);}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  background:rgba(18,181,165,.16);border:1px solid rgba(18,181,165,.4);
  color:#8FE6DC;font-size:12.5px;font-weight:700;letter-spacing:.04em;
  margin-bottom:20px;
}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--cyan);display:block;}
.page-hero h1{
  font-size:clamp(30px,4.2vw,48px);font-weight:800;line-height:1.18;letter-spacing:-.01em;
  max-width:840px;margin-bottom:20px;
}
.hero-lead{
  font-size:17px;line-height:1.85;color:rgba(255,255,255,.82);
  max-width:720px;margin-bottom:30px;
}
.hero-cta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  margin-top:46px;padding-top:26px;border-top:1px solid rgba(255,255,255,.16);
}
.hero-stats > div{padding:0 20px;border-left:1px solid rgba(255,255,255,.14);}
.hero-stats > div:first-child{border-left:none;padding-left:0;}
.stat-num{font-size:clamp(22px,2.4vw,30px);font-weight:800;color:#fff;line-height:1.2;}
.stat-num em{font-style:normal;font-size:15px;font-weight:700;color:var(--yellow);margin-left:4px;}
.stat-label{font-size:12.5px;color:rgba(255,255,255,.62);margin-top:6px;line-height:1.5;}

/* ============ 通用板块 ============ */
.section{padding:var(--sec) 0;}
.section--sand{background:var(--sand);}
.section--dark{background:var(--dark);color:#fff;}
.section-head{
  display:flex;justify-content:space-between;align-items:flex-end;gap:28px;
  margin-bottom:44px;
}
.eyebrow{
  font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--orange-d);margin-bottom:10px;
}
.section h2{
  font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.25;
  letter-spacing:-.01em;color:var(--ink);margin-bottom:12px;
}
.section-desc{font-size:15px;line-height:1.78;color:var(--text);max-width:640px;}
.section--dark h2{color:#fff;}
.section--dark .section-desc{color:rgba(255,255,255,.7);}
.section--dark .eyebrow{color:var(--yellow);}
.link-more{
  display:inline-flex;align-items:center;gap:6px;white-space:nowrap;
  font-size:14px;font-weight:700;color:var(--orange-d);
}
.link-more svg{width:16px;height:16px;transition:transform .2s;}
.link-more:hover{color:var(--ink);}
.link-more:hover svg{transform:translateX(3px);}
.link-more:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px;}

.grid{display:grid;gap:24px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}

/* ============ 服务卡 ============ */
.svc-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.svc-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-h);border-color:var(--orange);}
.svc-card img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-bottom:1px solid var(--line);
}
.svc-card .body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.svc-card h3{font-size:18px;font-weight:700;line-height:1.4;margin-bottom:10px;color:var(--ink);}
.svc-card p{font-size:14px;line-height:1.75;color:var(--text);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  display:inline-block;padding:5px 10px;border-radius:var(--r-badge);
  background:var(--sand);color:var(--text);
  font-size:12px;font-weight:600;line-height:1.4;
}
.tag--cyan{background:var(--cyan-l);color:var(--cyan-d);}
.tag--orange{background:var(--orange-l);color:var(--orange-d);}

/* ============ 场景区 ============ */
.scene-wrap{display:grid;grid-template-columns:1.02fr .98fr;gap:52px;align-items:center;}
.scene-img{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);}
.scene-img img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.scene-flag{
  position:absolute;left:18px;bottom:18px;
  background:rgba(18,23,26,.86);color:#fff;
  padding:9px 16px;border-radius:999px;font-size:13px;font-weight:700;
  backdrop-filter:blur(2px);
}
.scene-list{display:grid;gap:14px;margin-top:26px;}
.scene-item{
  display:flex;gap:14px;padding:16px 18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  transition:border-color .22s,box-shadow .22s,transform .22s;
}
.scene-item:hover{border-color:var(--orange);box-shadow:var(--shadow);transform:translateY(-2px);}
.scene-ico{
  width:38px;height:38px;flex:none;border-radius:10px;
  background:var(--cyan-l);color:var(--cyan-d);
  display:flex;align-items:center;justify-content:center;
}
.scene-ico svg{width:20px;height:20px;}
.scene-item h3{font-size:16px;font-weight:700;margin-bottom:4px;color:var(--ink);}
.scene-item p{font-size:13.5px;line-height:1.68;color:var(--text);}

/* ============ 时间线 ============ */
.timeline{position:relative;max-width:920px;margin:0 auto;}
.timeline::before{
  content:"";position:absolute;left:99px;top:10px;bottom:10px;width:2px;
  background:var(--cyan);opacity:.35;border-radius:2px;
}
.tl-item{display:grid;grid-template-columns:88px 24px 1fr;align-items:start;margin-bottom:26px;}
.tl-item:last-child{margin-bottom:0;}
.tl-time{
  padding-top:18px;padding-right:16px;text-align:right;
  font-size:14px;font-weight:700;color:var(--ink);line-height:1.4;
}
.tl-time span{display:block;font-size:12px;font-weight:600;color:var(--text);margin-top:2px;}
.tl-dot{
  width:14px;height:14px;border-radius:50%;background:var(--orange);
  box-shadow:0 0 0 4px #fff;justify-self:center;margin-top:22px;z-index:1;
}
.tl-card{
  margin-left:14px;padding:18px 22px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  transition:border-color .22s,box-shadow .22s,transform .22s;
}
.tl-card:hover{border-color:var(--orange);box-shadow:var(--shadow);transform:translateY(-2px);}
.tl-card h3{font-size:17px;font-weight:700;margin-bottom:6px;color:var(--ink);}
.tl-card p{font-size:14px;line-height:1.75;color:var(--text);}
.tl-card.is-now{border-left:4px solid var(--orange);background:var(--orange-l);}

/* ============ 方案对比（深色） ============ */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.plan{
  position:relative;padding:30px 24px;
  background:var(--dark-2);border:1px solid var(--line-dark);border-radius:var(--r-card);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.plan:hover{border-color:var(--orange);transform:translateY(-2px);}
.plan--rec{
  background:#fff;border-color:var(--orange);color:var(--ink);
  transform:translateY(-10px);box-shadow:0 18px 40px rgba(0,0,0,.38);
}
.plan--rec:hover{transform:translateY(-12px);}
.plan-badge{
  position:absolute;top:-13px;left:24px;
  background:var(--yellow);color:var(--ink);
  font-size:12px;font-weight:800;letter-spacing:.04em;
  padding:5px 12px;border-radius:var(--r-badge);
}
.plan h3{font-size:20px;font-weight:700;color:#fff;margin-bottom:8px;}
.plan--rec h3{color:var(--ink);}
.plan-sub{font-size:13px;line-height:1.65;color:rgba(255,255,255,.6);margin-bottom:22px;}
.plan--rec .plan-sub{color:var(--text);}
.plan ul{display:grid;gap:12px;margin-bottom:26px;}
.plan li{display:flex;gap:10px;font-size:14px;line-height:1.6;color:rgba(255,255,255,.84);}
.plan--rec li{color:var(--text);}
.plan li svg{width:16px;height:16px;flex:none;margin-top:4px;}
.plan li .ic-yes{color:var(--cyan);}
.plan li .ic-no{color:var(--gray);}
.plan li.off{color:rgba(255,255,255,.34);}
.plan--rec li.off{color:#9AA3AB;}
.plan .btn{width:100%;}

/* ============ 引用 ============ */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.quote{
  padding:26px;background:#fff;border:1px solid var(--line);
  border-left:4px solid var(--cyan);border-radius:var(--r-card);
  transition:box-shadow .25s,transform .25s,border-color .25s;
}
.quote:hover{box-shadow:var(--shadow-h);transform:translateY(-2px);border-color:var(--line);border-left-color:var(--orange);}
.quote p{font-size:15px;line-height:1.8;color:var(--ink);margin-bottom:18px;}
.quote .who{font-size:13px;color:var(--text);line-height:1.6;}
.quote .who strong{display:block;font-size:14px;color:var(--ink);}

/* ============ FAQ ============ */
.faq{max-width:880px;margin:0 auto;border-top:1px solid var(--line);}
.faq-item{position:relative;border-bottom:1px solid var(--line);}
.faq-item::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:4px;border-radius:2px;
  background:var(--orange);opacity:0;transition:opacity .25s;
}
.faq-item.open::before{opacity:1;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:0 4px;background:none;border:none;
  text-align:left;font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;
  transition:color .2s,padding .2s;
}
.faq-q:hover{color:var(--orange-d);}
.faq-q:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}
.faq-item.open .faq-q{padding-left:18px;color:var(--orange-d);}
.faq-ico{width:20px;height:20px;flex:none;color:var(--orange);transition:transform .25s ease;}
.faq-item.open .faq-ico{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:0 4px 22px;font-size:15px;line-height:1.85;color:var(--text);}
.faq-item.open .faq-a-inner{padding-left:18px;}

/* ============ CTA 带 ============ */
.cta-band{position:relative;overflow:hidden;background:var(--dark);color:#fff;padding:var(--sec) 0;}
.cta-band::before{
  content:"";position:absolute;right:-140px;top:-140px;width:440px;height:440px;
  border:2px solid rgba(18,181,165,.16);border-radius:50%;
}
.cta-band::after{
  content:"";position:absolute;left:-100px;bottom:-160px;width:360px;height:360px;
  border:2px solid rgba(242,84,45,.14);border-radius:50%;
}
.cta-wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.35fr 1fr;gap:54px;align-items:start;}
.cta-band h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.25;letter-spacing:-.01em;color:#fff;margin-bottom:16px;}
.cta-band .cta-desc{font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.76);margin-bottom:24px;max-width:560px;}
.badge-row{display:flex;flex-wrap:wrap;gap:12px;}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  background:rgba(255,255,255,.08);border:1px solid var(--line-dark);
  font-size:12.5px;font-weight:700;color:#E7EDF1;
}
.badge i{width:6px;height:6px;border-radius:50%;display:block;background:var(--cyan);}
.badge--yellow i{background:var(--yellow);}
.form-card{
  background:#fff;border-radius:var(--r-lg);padding:28px;color:var(--ink);
  box-shadow:0 20px 44px rgba(0,0,0,.28);
}
.form-card h3{font-size:18px;font-weight:700;margin-bottom:6px;}
.form-card .form-tip{font-size:13px;color:var(--text);margin-bottom:20px;line-height:1.65;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink);margin-bottom:7px;}
.field input,.field select,.field textarea{
  width:100%;height:44px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-input);
  background:#fff;color:var(--ink);font-size:14px;
  transition:border-color .2s,box-shadow .2s;
}
.field textarea{height:auto;min-height:88px;padding:12px 14px;line-height:1.65;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(18,181,165,.18);
}
.form-card .btn-primary{width:100%;margin-top:6px;}
.form-note{font-size:12px;color:var(--text);margin-top:12px;line-height:1.6;}
.form-msg{display:none;margin-top:10px;font-size:13px;line-height:1.6;}
.form-msg.err{display:block;color:var(--danger);}
.form-msg.ok{display:block;color:var(--cyan-d);}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#CBD3D9;font-size:14px;padding-top:64px;}
.footer-top{padding-bottom:48px;border-bottom:1px solid var(--line-dark);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1.3fr;gap:36px;}
.footer-brand .logo{color:#fff;font-size:18px;margin-bottom:14px;}
.footer-brand .logo-mark{box-shadow:5px 0 0 rgba(242,84,45,.34),10px 0 0 rgba(242,84,45,.16);}
.footer-brand p{font-size:13.5px;line-height:1.8;color:#98A2AB;max-width:340px;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a,.footer-col span{color:#98A2AB;font-size:13.5px;transition:color .2s;}
.footer-col a:hover{color:var(--orange);}
.footer-col a:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:4px;}
.footer-sub{display:flex;gap:8px;margin-top:14px;}
.footer-sub input{
  flex:1;min-width:0;height:42px;padding:0 12px;
  border:1px solid var(--line-dark);border-radius:var(--r-input);
  background:var(--dark-2);color:#fff;font-size:13px;
}
.footer-sub input::placeholder{color:#6C767E;}
.footer-sub input:focus{outline:none;border-color:var(--cyan);}
.footer-sub button{
  height:42px;padding:0 18px;border:none;border-radius:var(--r-input);
  background:var(--orange);color:#fff;font-weight:700;font-size:13.5px;cursor:pointer;
  transition:background .2s;
}
.footer-sub button:hover{background:var(--orange-d);}
.footer-sub button:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
.footer-bottom{padding:22px 0 28px;text-align:center;font-size:13px;color:#7C868F;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .nav-menu{gap:20px;}
}
@media (max-width:1023px){
  :root{--sec:72px;}
  .nav-menu{display:none;}
  .nav-burger{display:block;margin-left:auto;}
  .nav-right{margin-left:0;}
  .nav-right .btn-primary{display:none;}
  .grid-3,.grid-4,.plan-grid,.quote-grid{grid-template-columns:repeat(2,1fr);}
  .scene-wrap{grid-template-columns:1fr;gap:34px;}
  .cta-wrap{grid-template-columns:1fr;gap:38px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .hero-stats{grid-template-columns:repeat(2,1fr);row-gap:20px;}
  .hero-stats > div:nth-child(3){border-left:none;padding-left:0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
}
@media (max-width:600px){
  :root{--sec:56px;}
  .container{padding:0 16px;}
  .grid-2,.grid-3,.grid-4,.plan-grid,.quote-grid{grid-template-columns:1fr;}
  .btn-primary,.btn-line{width:100%;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .nav .countdown--dark{font-size:12px;padding:6px 11px;}
  .logo{font-size:17px;}
  .logo-sub{display:none;}
  .page-hero .container{padding-top:40px;padding-bottom:52px;}
  .hero-stats{grid-template-columns:1fr;}
  .hero-stats > div{border-left:none;padding:14px 0 0;border-top:1px solid rgba(255,255,255,.14);}
  .hero-stats > div:first-child{border-top:none;padding-top:0;}
  .timeline::before{display:none;}
  .tl-item{grid-template-columns:1fr;margin-bottom:16px;}
  .tl-time{text-align:left;padding:0 0 8px;font-size:13px;}
  .tl-time span{display:inline;margin-left:8px;}
  .tl-dot{display:none;}
  .tl-card{margin-left:0;}
  .faq-q{min-height:52px;padding:14px 0;font-size:15px;}
  .footer-grid{grid-template-columns:1fr;}
  .plan--rec{transform:none;}
  .plan--rec:hover{transform:translateY(-2px);}
}