/* roulang page: index */
:root{
  --brand:#0F4CD8;
  --brand-dark:#0A3AA8;
  --brand-soft:#E8EFFE;
  --accent:#00B8A0;
  --pulse:#FF7A2F;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --line:#E4E9F2;
  --text:#101828;
  --text-2:#475467;
  --text-3:#98A2B3;
  --footer:#0B1B3A;
  --r-card:14px;
  --r-btn:10px;
  --r-img:16px;
  --sh-1:0 6px 20px rgba(16,24,40,.06);
  --sh-2:0 12px 32px rgba(16,24,40,.10);
  --t:180ms ease;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color var(--t),border-color var(--t),background var(--t)}
a:hover{color:var(--brand-dark)}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
b,strong{font-weight:700}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tint{background:#FFFFFF;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-title{
  position:relative;
  padding-left:44px;
  font-size:30px;
  line-height:1.3;
  font-weight:700;
  letter-spacing:.01em;
}
.sec-title::before{
  content:"";
  position:absolute;
  left:0;
  bottom:8px;
  width:5px;
  height:24px;
  border-radius:3px;
  background:var(--brand);
  box-shadow:10px -6px 0 0 var(--accent),20px -12px 0 0 var(--pulse);
}
.sec-sub{margin-top:14px;color:var(--text-2);font-size:16px;max-width:680px}
.section--center .sec-head{margin-left:auto;margin-right:auto;text-align:center}
.section--center .sec-title{padding-left:44px;display:inline-block;text-align:left}

/* ============ 按钮 / 标签 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  border:1px solid transparent;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(15,76,216,.24)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 26px rgba(15,76,216,.30)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border-color:#D7DEEA}
.btn-ghost:hover{background:#F2F6FF;border-color:var(--brand);color:var(--brand)}
.btn-light{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.42)}
.btn-light:hover{background:rgba(255,255,255,.24);color:#fff}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:600;font-size:15px;
}
.btn-link::after{content:"→";transition:transform var(--t)}
.btn-link:hover::after{transform:translateX(3px)}
.tag{
  display:inline-flex;align-items:center;
  height:26px;padding:0 10px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.tag--accent{background:rgba(0,184,160,.12);color:#00806F}
.tag--pulse{background:rgba(255,122,47,.14);color:#C4520F}
.status-badge{
  display:inline-flex;align-items:center;gap:7px;
  height:30px;padding:0 14px;border-radius:999px;
  font-size:13px;font-weight:600;letter-spacing:.02em;
  background:var(--accent);color:#fff;
}
.status-badge .dot{width:7px;height:7px;border-radius:50%;background:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.35)}
.status-badge.is-pending{background:var(--pulse)}
.status-badge.is-ended{background:#E4E9F2;color:#475467}
.status-badge.is-ended .dot{background:#98A2B3;box-shadow:0 0 0 3px rgba(152,162,179,.25)}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow var(--t),border-color var(--t);
}
.site-header.is-scrolled{box-shadow:var(--sh-1);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:20px;height:74px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-bars{display:flex;align-items:flex-end;gap:3px;height:26px}
.brand-bars i{display:block;width:4px;border-radius:2px;background:var(--brand)}
.brand-bars i:nth-child(1){height:14px;background:var(--accent)}
.brand-bars i:nth-child(2){height:26px}
.brand-bars i:nth-child(3){height:19px;background:var(--pulse)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:19px;font-weight:700;color:var(--text);letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:12px;color:var(--text-3);letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1;min-width:0}
.nav-link{
  position:relative;
  padding:8px 12px;
  font-size:14px;
  color:var(--text-2);
  border-radius:8px;
  white-space:nowrap;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:2px;border-radius:2px;background:var(--brand);
}
.header-right{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-clock{
  font-variant-numeric:tabular-nums;
  font-size:13px;font-weight:600;color:var(--text-2);
  background:#F1F4FA;border:1px solid var(--line);
  padding:5px 10px;border-radius:8px;
}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,27,58,.45);
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;max-width:86vw;
  background:#fff;z-index:100;
  transform:translateX(100%);
  transition:transform 240ms ease;
  display:flex;flex-direction:column;
  padding:20px 20px 0;
  box-shadow:-18px 0 40px rgba(16,24,40,.16);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);font-size:20px;color:var(--text-2);line-height:1}
.drawer-links{display:flex;flex-direction:column;gap:4px;flex:1;overflow-y:auto}
.drawer-links a{padding:12px 14px;border-radius:10px;color:var(--text-2);font-size:15px}
.drawer-links a:hover,.drawer-links a.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.drawer-foot{padding:16px 0 22px;border-top:1px solid var(--line)}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:76px 0 84px;
  background:
    radial-gradient(1000px 420px at 88% -10%,rgba(15,76,216,.10),transparent 62%),
    radial-gradient(620px 320px at 6% 8%,rgba(0,184,160,.10),transparent 60%),
    var(--bg);
  overflow:hidden;
}
.hero-inner{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:13px;font-weight:600;color:var(--brand);
  box-shadow:var(--sh-1);margin-bottom:22px;
}
.hero-eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--pulse)}
.hero h1{
  font-size:40px;line-height:1.25;font-weight:700;letter-spacing:.005em;
}
.hero h1 span{color:var(--brand)}
.hero-sub{margin-top:18px;font-size:17px;color:var(--text-2);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-visual{position:relative;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-2)}
.hero-visual img{width:100%;aspect-ratio:16/9;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,27,58,0) 40%,rgba(11,27,58,.42) 100%);
}
.hero-visual figcaption{
  position:absolute;left:20px;right:20px;bottom:16px;z-index:2;
  color:#fff;font-size:14px;font-weight:600;letter-spacing:.02em;
}
.hero-status{
  margin-top:30px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:18px 20px;
  display:flex;flex-wrap:wrap;align-items:center;gap:18px 24px;
}
.countdown{display:flex;align-items:center;gap:8px}
.cd-unit{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  width:52px;height:56px;border-radius:8px;background:var(--footer);color:#fff;
}
.cd-unit b{font-size:20px;line-height:1;font-variant-numeric:tabular-nums}
.cd-unit i{font-style:normal;font-size:11px;color:rgba(255,255,255,.7);margin-top:5px}
.trust{display:flex;flex-wrap:wrap;gap:12px 32px;margin-left:auto}
.trust-item b{display:block;font-size:20px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}
.trust-item span{font-size:13px;color:var(--text-3)}
.trust-item:nth-child(2) b{color:var(--accent)}
.trust-item:nth-child(3) b{color:#C4520F}

/* ============ 能力分组 ============ */
.cap-grid{display:grid;grid-template-columns:1.06fr 1.34fr;gap:24px}
.cap-feature{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
  display:flex;flex-direction:column;
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.cap-feature:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,76,216,.4)}
.cap-feature img{width:100%;aspect-ratio:16/9;object-fit:cover}
.cap-feature-body{padding:28px;display:flex;flex-direction:column;gap:12px;flex:1}
.cap-feature-body h3{font-size:20px;font-weight:600}
.cap-feature-body p{color:var(--text-2);font-size:15px}
.cap-mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.cap-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:26px;
  display:flex;flex-direction:column;gap:10px;
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.cap-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,76,216,.4)}
.cap-icon{
  width:42px;height:42px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);font-weight:700;font-size:15px;
}
.cap-card:nth-child(2) .cap-icon{background:rgba(0,184,160,.14);color:#00806F}
.cap-card:nth-child(3) .cap-icon{background:rgba(255,122,47,.16);color:#C4520F}
.cap-card:nth-child(4) .cap-icon{background:#EAF0FF;color:var(--brand-dark)}
.cap-card h3{font-size:17px;font-weight:600}
.cap-card p{font-size:14px;color:var(--text-2)}
.cap-list{margin-top:6px;display:flex;flex-direction:column;gap:8px}
.cap-list li{position:relative;padding-left:22px;font-size:14px;color:var(--text-2)}
.cap-list li::before{
  content:"";position:absolute;left:0;top:9px;width:11px;height:6px;
  border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);
  transform:rotate(-45deg);
}

/* ============ 使用场景 ============ */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:44px 0}
.scene + .scene{border-top:1px solid var(--line)}
.scene-media{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1)}
.scene-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.scene-copy h3{font-size:22px;font-weight:700;margin-bottom:12px}
.scene-copy p{color:var(--text-2);font-size:15px}
.scene-points{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.scene-points li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:var(--text-2);
  background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 16px;
}
.scene-points li i{
  flex-shrink:0;width:20px;height:20px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);
  font-style:normal;font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;margin-top:3px;
}
.scene.is-reverse .scene-media{order:2}
.scene.is-reverse .scene-copy{order:1}

/* ============ 案例 ============ */
.case-feature{
  display:grid;grid-template-columns:1.1fr 1fr;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
}
.case-feature img{width:100%;height:100%;min-height:320px;object-fit:cover}
.case-body{padding:36px;display:flex;flex-direction:column;gap:14px;justify-content:center}
.case-body h3{font-size:22px;font-weight:700}
.case-body p{color:var(--text-2);font-size:15px}
.case-stats{
  margin-top:32px;background:var(--footer);border-radius:var(--r-card);
  padding:28px 32px;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.stat-item b{display:block;font-size:30px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;line-height:1.2}
.stat-item b em{font-style:normal;font-size:16px;font-weight:600;color:var(--accent);margin-left:2px}
.stat-item span{display:block;margin-top:8px;font-size:14px;color:rgba(255,255,255,.72)}
.case-mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:24px}
.case-mini{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform var(--t),box-shadow var(--t);
}
.case-mini:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.case-mini img{width:100%;aspect-ratio:16/9;object-fit:cover}
.case-mini-body{padding:24px}
.case-mini-body h4{font-size:17px;font-weight:600;margin:10px 0 8px}
.case-mini-body p{font-size:14px;color:var(--text-2)}

/* ============ 价格 ============ */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.price-card{
  position:relative;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:30px 28px;
  display:flex;flex-direction:column;gap:16px;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.price-card:hover{box-shadow:var(--sh-2);border-color:rgba(15,76,216,.35)}
.price-card.is-featured{
  transform:translateY(-12px);
  border-color:var(--brand);
  box-shadow:0 18px 44px rgba(15,76,216,.16);
}
.price-card.is-featured:hover{transform:translateY(-16px)}
.price-badge{
  position:absolute;top:-13px;right:24px;
  height:26px;padding:0 12px;border-radius:999px;
  background:var(--pulse);color:#fff;
  font-size:12px;font-weight:700;letter-spacing:.04em;
  display:flex;align-items:center;
}
.price-name{font-size:20px;font-weight:600}
.price-desc{font-size:14px;color:var(--text-3);min-height:44px}
.price-value{display:flex;align-items:baseline;gap:6px;color:var(--brand);font-variant-numeric:tabular-nums}
.price-value b{font-size:36px;font-weight:700;line-height:1}
.price-value span{font-size:14px;color:var(--text-3)}
.price-list{display:flex;flex-direction:column;gap:10px;margin-top:4px}
.price-list li{position:relative;padding-left:24px;font-size:14px;color:var(--text-2)}
.price-list li::before{
  content:"";position:absolute;left:0;top:8px;width:12px;height:7px;
  border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);
  transform:rotate(-45deg);
}
.price-list li.is-muted{color:var(--text-3)}
.price-list li.is-muted::before{border-color:#C7CEDB}
.price-card .btn{margin-top:auto}

/* ============ 资讯 ============ */
.sec-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,76,216,.35)}
.news-thumb{display:block;overflow:hidden;background:linear-gradient(135deg,#E8EFFE,#DCE6FB)}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 300ms ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-title{font-size:17px;font-weight:600;line-height:1.5}
.news-title a{color:var(--text)}
.news-title a:hover{color:var(--brand)}
.news-sum{
  font-size:14px;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-3)}
.empty-state{
  grid-column:1/-1;
  text-align:center;padding:56px 24px;
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);
}
.empty-state .es-icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:16px;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;
}
.empty-state p{color:var(--text-2);margin-bottom:18px}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:360px 1fr;gap:40px;align-items:start}
.faq-aside{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:28px}
.faq-aside h3{font-size:18px;font-weight:600;margin-bottom:10px}
.faq-aside p{font-size:14px;color:var(--text-2);margin-bottom:18px}
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
  transition:background var(--t),color var(--t);
}
.faq-q:hover{background:#F7FAFF;color:var(--brand)}
.faq-q i{
  flex-shrink:0;width:22px;height:22px;position:relative;
  border-radius:50%;background:var(--brand-soft);
}
.faq-q i::before,.faq-q i::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform var(--t),opacity var(--t);
}
.faq-q i::before{left:6px;top:10px;width:10px;height:2px}
.faq-q i::after{left:10px;top:6px;width:2px;height:10px}
.faq-item.is-open .faq-q{background:#F7FAFF;color:var(--brand)}
.faq-item.is-open .faq-q i::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--text-2)}

/* ============ CTA ============ */
.cta-band{
  background:
    linear-gradient(120deg,rgba(11,27,58,.94),rgba(10,58,168,.92)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:#fff;
}
.cta-inner{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;padding:84px 0}
.cta-copy h2{font-size:30px;font-weight:700;line-height:1.35}
.cta-copy p{margin-top:14px;font-size:16px;color:rgba(255,255,255,.78);max-width:460px}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;gap:10px;font-size:15px;color:rgba(255,255,255,.86)}
.cta-points li i{color:var(--accent);font-style:normal;font-weight:700}
.cta-form{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-card);
  padding:30px;
  backdrop-filter:blur(4px);
}
.cta-form h3{font-size:18px;font-weight:600;margin-bottom:6px}
.cta-form .form-hint{font-size:13px;color:rgba(255,255,255,.68);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:rgba(255,255,255,.82);margin-bottom:8px}
.field input,.field textarea{
  width:100%;height:48px;padding:0 14px;
  border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.10);
  color:#fff;font-size:15px;
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.field textarea{height:auto;padding:12px 14px;resize:vertical;min-height:104px;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:rgba(255,255,255,.5)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:#7FA5F5;background:rgba(255,255,255,.16);
  box-shadow:0 0 0 3px rgba(15,76,216,.35);
}
.check-line{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:rgba(255,255,255,.72);margin:4px 0 20px}
.check-line input{width:16px;height:16px;margin-top:4px;flex-shrink:0}
.form-alert{
  display:none;margin-top:16px;padding:12px 16px;border-radius:10px;
  background:rgba(0,184,160,.18);border:1px solid rgba(0,184,160,.5);
  color:#B8F5EA;font-size:14px;
}
.form-alert.is-show{display:block}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer);color:rgba(255,255,255,.78);padding:72px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.foot-brand .brand-text strong{color:#fff}
.foot-brand .brand-text em{color:rgba(255,255,255,.56)}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:300px}
.foot-col h4{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px}
.foot-links{display:flex;flex-direction:column;gap:11px}
.foot-links a{font-size:14px;color:rgba(255,255,255,.7)}
.foot-links a:hover{color:#fff}
.foot-contact li{font-size:14px;color:rgba(255,255,255,.7);line-height:1.9}
.foot-contact li b{color:#fff;font-weight:600;margin-right:6px}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:10px 24px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.56);
}
.foot-bottom a{color:rgba(255,255,255,.7)}
.foot-bottom a:hover{color:#fff}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .nav-link{padding:8px 9px;font-size:13px}
  .nav-clock{display:none}
}
@media (max-width:1024px){
  .nav-links{display:none}
  .menu-toggle{display:flex}
  .header-inner{height:66px}
  .hero{padding:56px 0 64px}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:34px}
  .section{padding:64px 0}
  .cap-grid{grid-template-columns:1fr}
  .cap-mini-grid{grid-template-columns:1fr 1fr}
  .scene{grid-template-columns:1fr;gap:28px;padding:32px 0}
  .scene.is-reverse .scene-media{order:0}
  .scene.is-reverse .scene-copy{order:0}
  .case-feature{grid-template-columns:1fr}
  .case-feature img{min-height:240px}
  .price-grid{grid-template-columns:1fr;gap:28px}
  .price-card.is-featured{transform:none}
  .price-card.is-featured:hover{transform:translateY(-4px)}
  .news-grid{grid-template-columns:1fr 1fr}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .cta-inner{grid-template-columns:1fr;gap:34px;padding:64px 0}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .sec-title{font-size:24px;padding-left:36px}
  .sec-title::before{height:20px;bottom:6px}
  .sec-head--row{flex-direction:column;align-items:flex-start}
  .hero h1{font-size:28px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{flex:1 1 auto}
  .hero-status{padding:16px}
  .trust{margin-left:0;gap:16px 24px}
  .cap-mini-grid{grid-template-columns:1fr}
  .case-stats{grid-template-columns:1fr;gap:20px;padding:24px}
  .case-mini-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .faq-q{font-size:15px;padding:18px 18px}
  .faq-a p{padding:0 18px 20px}
  .cta-form{padding:22px}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .section{padding:48px 0}
  .btn{width:100%}
  .hero-actions{flex-direction:column;align-items:stretch}
  .cd-unit{width:46px;height:50px}
  .cd-unit b{font-size:18px}
  .brand-text strong{font-size:17px}
  .case-body{padding:24px}
}

/* roulang page: article */
:root{
  --primary:#0F4CD8;
  --primary-dark:#0A3AA8;
  --primary-soft:#E8EFFE;
  --primary-line:rgba(15,76,216,.4);
  --teal:#00B8A0;
  --orange:#FF7A2F;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --line:#E4E9F2;
  --text:#101828;
  --text-2:#475467;
  --text-3:#98A2B3;
  --footer:#0B1B3A;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:16px;
  --shadow-1:0 6px 20px rgba(16,24,40,.06);
  --shadow-2:0 12px 32px rgba(16,24,40,.10);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.3}
p{margin:0}
table{border-collapse:collapse}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1280px){.container{max-width:1240px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .18s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,24,40,.08)}
.header-inner{
  display:flex;
  align-items:center;
  gap:22px;
  height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{display:flex;align-items:flex-end;gap:3px;height:26px}
.brand-mark i{display:block;width:4px;border-radius:3px;background:var(--primary)}
.brand-mark i:nth-child(1){height:12px}
.brand-mark i:nth-child(2){height:24px;background:var(--teal)}
.brand-mark i:nth-child(3){height:17px;background:var(--orange)}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:20px;letter-spacing:.4px;color:var(--text)}
.brand-text em{font-style:normal;font-size:12px;color:var(--text-3);letter-spacing:.08em}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:12px;flex:1}
.nav-link{
  position:relative;
  padding:10px 12px;
  font-size:15px;
  color:var(--text-2);
  border-radius:8px;
  white-space:nowrap;
  transition:color .18s ease,background-color .18s ease;
}
.nav-link:hover{color:var(--primary);background:var(--primary-soft)}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;border-radius:2px;background:var(--primary);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none}
.nav-status{display:flex;align-items:center;gap:8px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  border-radius:999px;
  white-space:nowrap;
}
.badge-live{background:var(--teal);color:#fff}
.badge-soon{background:var(--orange);color:#fff}
.badge-end{background:#E9EDF5;color:var(--text-2)}
.badge-tag{background:var(--primary-soft);color:var(--primary)}
.badge-rec{background:var(--primary);color:#fff}
.countdown{display:flex;align-items:center;gap:4px}
.countdown b{
  display:flex;align-items:center;justify-content:center;
  min-width:38px;height:42px;
  background:var(--footer);
  color:#fff;
  font-size:16px;font-weight:600;
  border-radius:8px;
  font-variant-numeric:tabular-nums;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  font-size:15px;font-weight:600;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  transition:background-color .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(15,76,216,.22)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 12px 26px rgba(15,76,216,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(15,76,216,.22)}
.btn-ghost{background:#fff;color:var(--primary);border-color:#D7DEEA}
.btn-ghost:hover{border-color:var(--primary);background:#F2F6FF}
.btn-light{background:#fff;color:var(--primary)}
.btn-light:hover{background:#EDF3FF;transform:translateY(-1px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn-outline-light:hover{border-color:#fff;background:rgba(255,255,255,.12)}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:15px}
.btn-text span.arrow{transition:transform .18s ease;display:inline-block}
.btn-text:hover span.arrow{transform:translateX(3px)}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:10px;
  border:1px solid var(--line);
  background:#fff;
  align-items:center;justify-content:center;
}
.nav-toggle i{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative}
.nav-toggle i::before,.nav-toggle i::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
}
.nav-toggle i::before{top:-6px}
.nav-toggle i::after{top:6px}
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,27,58,.45);
  opacity:0;visibility:hidden;transition:opacity .2s ease;z-index:60;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;
  width:min(84vw,340px);
  background:#fff;
  z-index:70;
  transform:translateX(102%);
  transition:transform .24s ease;
  display:flex;flex-direction:column;
  padding:20px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);font-size:18px;color:var(--text-2)}
.drawer-links{display:flex;flex-direction:column;gap:2px}
.drawer-links a{
  padding:13px 14px;border-radius:10px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.drawer-links a:last-child{border-bottom:0}
.drawer-links a:hover,.drawer-links a.is-active{background:var(--primary-soft);color:var(--primary);font-weight:600}
.drawer-foot{margin-top:auto;padding-top:18px}
.drawer-foot .btn{width:100%}

/* ---------- 阅读进度 ---------- */
.reading-progress{
  position:fixed;top:0;left:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--primary),var(--teal));
  z-index:80;
  transition:width .1s linear;
}

/* ---------- 页面横幅 ---------- */
.page-banner{
  position:relative;
  background:var(--footer);
  color:#fff;
  padding:52px 0 44px;
  overflow:hidden;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.34;
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(104deg,rgba(11,27,58,.94) 12%,rgba(15,76,216,.62) 78%);
}
.page-banner .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.82)}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{opacity:.55}
.breadcrumb .now{color:rgba(255,255,255,.9);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.art-head{max-width:860px}
.art-cat{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.28);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  margin-bottom:16px;
}
.art-title{
  font-size:36px;line-height:1.28;font-weight:700;color:#fff;
  margin-bottom:16px;
  word-break:break-word;
}
.art-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;font-size:14px;color:rgba(255,255,255,.76)}
.art-meta span{display:inline-flex;align-items:center;gap:6px}
.art-meta b{font-weight:600;color:#fff;font-variant-numeric:tabular-nums}

/* ---------- 正文布局 ---------- */
.art-wrap{padding:56px 0 72px}
.art-layout{
  display:grid;
  grid-template-columns:minmax(0,760px) 280px;
  gap:48px;
  justify-content:center;
  align-items:start;
}
.art-panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:40px 44px;
}
.art-body{font-size:16px;line-height:1.8;color:var(--text-2);word-break:break-word}
.art-body h2{
  font-size:22px;color:var(--text);line-height:1.4;
  margin:40px 0 16px;padding-left:14px;
  border-left:4px solid var(--primary);
}
.art-body h2:first-child{margin-top:0}
.art-body h3{font-size:18px;color:var(--text);margin:30px 0 12px}
.art-body h4{font-size:16px;color:var(--text);margin:24px 0 10px}
.art-body p{margin:0 0 18px}
.art-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.art-body a:hover{color:var(--primary-dark)}
.art-body strong{color:var(--text)}
.art-body ul,.art-body ol{margin:0 0 18px;padding-left:22px;line-height:1.9}
.art-body ul{list-style:disc}
.art-body ol{list-style:decimal}
.art-body li{margin-bottom:6px}
.art-body blockquote{
  margin:22px 0;padding:16px 20px;
  background:#F2F6FF;border-left:4px solid var(--primary);
  border-radius:0 12px 12px 0;color:var(--text-2);
}
.art-body img{border-radius:12px;margin:22px auto;height:auto}
.art-body figure{margin:24px 0}
.art-body figcaption{text-align:center;font-size:13px;color:var(--text-3);margin-top:10px}
.art-body table{width:100%;font-size:14px;margin:22px 0;display:block;overflow-x:auto;white-space:nowrap}
.art-body th{background:var(--footer);color:#fff;text-align:left;padding:12px 14px;font-weight:600}
.art-body td{padding:12px 14px;border-bottom:1px solid var(--line);color:var(--text-2)}
.art-body tr:hover td{background:#F7FAFF}
.art-body code{background:#F2F6FF;color:var(--primary-dark);padding:2px 6px;border-radius:6px;font-size:14px}
.art-body pre{background:var(--footer);color:#E4E9F2;padding:18px;border-radius:12px;overflow-x:auto;font-size:14px;line-height:1.7}
.art-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.art-empty{
  text-align:center;
  padding:56px 20px;
}
.art-empty .empty-icon{
  width:64px;height:64px;margin:0 auto 18px;
  border-radius:18px;
  background:var(--primary-soft);
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:26px;font-weight:700;
}
.art-empty h2{font-size:20px;color:var(--text);margin-bottom:10px}
.art-empty p{color:var(--text-2);font-size:15px;margin-bottom:22px}

/* ---------- 侧栏 ---------- */
.art-aside{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px}
.side-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:22px;
}
.side-card h3{
  font-size:15px;color:var(--text);
  padding-bottom:12px;margin-bottom:14px;
  border-bottom:1px solid var(--line);
}
.side-links{display:flex;flex-direction:column;gap:2px}
.side-links a{
  display:block;padding:9px 10px;border-radius:8px;
  font-size:14px;color:var(--text-2);
  transition:background-color .18s ease,color .18s ease;
}
.side-links a:hover{background:var(--primary-soft);color:var(--primary)}
.side-card .btn{width:100%;margin-top:14px}
.side-note{font-size:13px;color:var(--text-3);line-height:1.7;margin-top:10px}
.side-contact li{display:flex;gap:8px;font-size:14px;color:var(--text-2);margin-bottom:8px}
.side-contact b{color:var(--text);font-weight:600;flex:none}

/* ---------- 上下篇 ---------- */
.post-nav{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
  margin-top:36px;
}
.post-nav-card{
  display:flex;flex-direction:column;gap:6px;
  padding:20px 22px;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.post-nav-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--primary-line)}
.post-nav-card.is-next{text-align:right}
.pn-label{font-size:12px;font-weight:600;color:var(--text-3);letter-spacing:.04em}
.pn-title{font-size:15px;font-weight:600;color:var(--text);line-height:1.6}

/* ---------- 相关推荐 ---------- */
.section{padding:72px 0}
.section-head{margin-bottom:34px;max-width:720px}
.section-head .eyebrow{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--primary);background:var(--primary-soft);
  padding:5px 12px;border-radius:999px;margin-bottom:14px;
}
.section-head h2{
  font-size:30px;line-height:1.35;color:var(--text);
  display:flex;align-items:center;gap:10px;
}
.section-head h2::before{
  content:"";display:block;width:18px;height:22px;flex:none;
  background:
    linear-gradient(var(--primary),var(--primary)) 0 100%/4px 66% no-repeat,
    linear-gradient(var(--teal),var(--teal)) 7px 100%/4px 100% no-repeat,
    linear-gradient(var(--orange),var(--orange)) 14px 100%/4px 45% no-repeat;
  border-radius:2px;
}
.section-head p{margin-top:12px;font-size:16px;color:var(--text-2)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--primary-line)}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#E8EFFE,#F6F8FC)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{
  font-size:17px;line-height:1.55;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-body p{
  font-size:14px;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:8px}
.post-foot .time{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  background:var(--footer);
  color:#fff;
  padding:64px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;opacity:.2;
}
.cta-band .container{position:relative;z-index:2}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-inner h2{font-size:28px;line-height:1.4;margin-bottom:10px}
.cta-inner p{font-size:15px;color:rgba(255,255,255,.76);max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-small{width:100%;margin-top:18px;font-size:13px;color:rgba(255,255,255,.6)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer);color:#fff;padding:56px 0 26px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.foot-brand .brand-text strong{color:#fff;font-size:20px}
.foot-brand .brand-text em{color:rgba(255,255,255,.62)}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);max-width:320px}
.foot-col h4{font-size:15px;margin-bottom:16px;color:#fff}
.foot-links{display:flex;flex-direction:column;gap:10px}
.foot-links a{font-size:14px;color:rgba(255,255,255,.72);transition:color .18s ease}
.foot-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.foot-contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.72);margin-bottom:10px}
.foot-contact b{flex:none;color:rgba(255,255,255,.94);font-weight:600}
.foot-bottom{
  margin-top:40px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .art-title{font-size:32px}
}
@media (max-width:1024px){
  .nav-links,.nav-status{display:none}
  .nav-toggle{display:inline-flex}
  .art-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .art-aside{position:static}
  .art-panel{padding:32px 28px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .section{padding:60px 0}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .header-inner{height:64px;gap:12px}
  .brand-text strong{font-size:18px}
  .page-banner{padding:36px 0 32px}
  .art-title{font-size:26px}
  .art-meta{font-size:13px;gap:8px 14px}
  .art-wrap{padding:36px 0 48px}
  .art-panel{padding:24px 18px}
  .art-body h2{font-size:19px;margin-top:32px}
  .art-body{font-size:15px}
  .grid-3{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .post-nav-card.is-next{text-align:left}
  .section{padding:48px 0}
  .section-head h2{font-size:22px}
  .cta-inner h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .foot-grid{grid-template-columns:1fr}
}
@media (max-width:480px){
  .btn{width:100%;padding:0 18px}
  .btn-sm{width:auto}
  .art-title{font-size:22px}
  .post-foot{flex-wrap:wrap;gap:8px}
}

/* roulang page: category1 */
:root{
  --brand:#0F4CD8;
  --brand-dark:#0A3AA8;
  --brand-light:#E8EFFE;
  --teal:#00B8A0;
  --orange:#FF7A2F;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --line:#E4E9F2;
  --line-strong:#D7DEEA;
  --ink:#101828;
  --ink-2:#475467;
  --ink-3:#98A2B3;
  --footer:#0B1B3A;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:16px;
  --shadow-1:0 6px 20px rgba(16,24,40,.06);
  --shadow-2:0 12px 32px rgba(16,24,40,.10);
  --container:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;text-underline-offset:3px;}
a:hover{text-decoration:underline;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
input,textarea,select{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
@media (min-width:1280px){.container{max-width:1280px;}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .18s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto;}
.brand:hover{text-decoration:none;}
.brand-mark{display:inline-flex;align-items:flex-end;gap:3px;height:26px;}
.brand-mark i{display:block;width:4px;border-radius:2px;background:var(--brand);}
.brand-mark i:nth-child(1){height:12px;background:var(--brand);}
.brand-mark i:nth-child(2){height:22px;background:var(--teal);}
.brand-mark i:nth-child(3){height:17px;background:var(--orange);}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-text strong{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.01em;}
.brand-text em{font-size:12px;font-style:normal;color:var(--ink-3);letter-spacing:.06em;}

.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;color:var(--ink-2);
  border-radius:8px;
  white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--brand);background:var(--brand-light);text-decoration:none;}
.nav-link.is-active{color:var(--brand);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:2px;
  background:var(--brand);border-radius:2px;
}
.nav-side{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.status-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--teal);color:#fff;white-space:nowrap;
}
.status-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.85);}
.status-badge.is-ended{background:#98A2B3;color:#101828;}
.countdown{display:flex;align-items:center;gap:8px;}
.cd-label{font-size:12px;color:var(--ink-3);white-space:nowrap;}
.cd-blocks{display:flex;align-items:center;gap:4px;}
.cd-block{
  min-width:40px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--footer);color:#fff;
  border-radius:8px;font-size:17px;font-weight:700;
  font-variant-numeric:tabular-nums;
  padding:0 6px;
}
.cd-sep{color:var(--ink-3);font-weight:700;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  text-decoration:none;white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(15,76,216,.22);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 10px 24px rgba(15,76,216,.28);}
.btn-primary:active{transform:none;box-shadow:0 4px 12px rgba(15,76,216,.2);}
.btn-ghost{background:#fff;color:var(--brand);border:1px solid var(--line-strong);}
.btn-ghost:hover{border-color:var(--brand);background:#F2F6FF;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-size:14px;font-weight:600;height:auto;padding:0;
}
.btn-text:hover{text-decoration:none;}
.btn-text .arrow{transition:transform .18s ease;}
.btn-text:hover .arrow{transform:translateX(3px);}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line-strong);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;}

.drawer-mask{
  position:fixed;inset:0;background:rgba(11,27,58,.45);
  z-index:110;opacity:0;pointer-events:none;transition:opacity .24s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;height:100%;
  width:min(340px,86vw);
  background:#fff;z-index:120;
  transform:translateX(102%);
  transition:transform .24s ease;
  display:flex;flex-direction:column;
  padding:22px 22px 28px;overflow-y:auto;
  box-shadow:-16px 0 40px rgba(16,24,40,.16);
}
.drawer.is-open{transform:none;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line-strong);
  font-size:20px;color:var(--ink-2);line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav a{
  padding:12px 14px;border-radius:10px;
  font-size:15px;color:var(--ink-2);
}
.drawer-nav a:hover{background:var(--brand-light);color:var(--brand);text-decoration:none;}
.drawer-nav a.is-active{background:var(--brand-light);color:var(--brand);font-weight:600;}
.drawer-foot{margin-top:auto;padding-top:22px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:12px;}
.drawer-foot .btn{width:100%;}
.drawer-tip{font-size:13px;color:var(--ink-3);}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;
  min-height:280px;
  display:flex;align-items:center;
  padding:64px 0 110px;
  background-image:linear-gradient(100deg,rgba(11,27,58,.86),rgba(10,58,168,.66)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  color:#fff;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:18px;}
.breadcrumb a{color:rgba(255,255,255,.86);}
.breadcrumb span.sep{opacity:.6;}
.page-hero h1{
  font-size:40px;line-height:1.25;font-weight:700;letter-spacing:.01em;
  max-width:820px;
}
.page-hero .lede{
  margin-top:16px;max-width:720px;
  font-size:17px;line-height:1.75;color:rgba(255,255,255,.9);
}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.chip{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:999px;
  font-size:13px;border:1px solid rgba(255,255,255,.34);
  background:rgba(255,255,255,.1);color:#fff;white-space:nowrap;
}

/* ---------- Sections ---------- */
.sec{padding:88px 0;}
.sec--white{background:#fff;}
.sec--tight{padding-top:0;}
.sec-head{max-width:760px;margin-bottom:40px;}
.sec-title{
  position:relative;
  display:flex;align-items:center;gap:14px;
  font-size:30px;line-height:1.3;font-weight:700;
}
.sec-title::before{
  content:"";flex:0 0 auto;
  width:24px;height:26px;border-radius:3px;
  background-image:linear-gradient(to right,var(--brand) 0 5px,transparent 5px 9px,var(--teal) 9px 14px,transparent 14px 19px,var(--orange) 19px 24px);
}
.sec-sub{margin-top:14px;font-size:16px;color:var(--ink-2);line-height:1.75;}

/* metrics */
.metrics{margin-top:-70px;position:relative;z-index:3;padding-bottom:8px;}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.metric-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:24px;
}
.metric-num{font-size:32px;font-weight:700;color:var(--brand);line-height:1.1;font-variant-numeric:tabular-nums;}
.metric-num small{font-size:15px;font-weight:600;color:var(--ink-2);margin-left:4px;}
.metric-label{margin-top:8px;font-size:14px;color:var(--ink-2);}

/* capability cards */
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.cap-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:28px;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.cap-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(15,76,216,.4);}
.cap-icon{
  width:46px;height:46px;border-radius:12px;
  background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.cap-icon svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.cap-card h3{font-size:19px;font-weight:600;line-height:1.4;}
.cap-card ul{margin-top:14px;display:flex;flex-direction:column;gap:9px;}
.cap-card li{
  position:relative;padding-left:20px;
  font-size:14.5px;color:var(--ink-2);line-height:1.7;
}
.cap-card li::before{
  content:"";position:absolute;left:2px;top:9px;
  width:8px;height:8px;border-radius:50%;
  border:2px solid var(--teal);
}

/* feature rows */
.feature-row{
  display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;
  margin-bottom:72px;
}
.feature-row:last-child{margin-bottom:0;}
.feature-row.is-reverse .feature-media{order:2;}
.feature-media{
  border-radius:var(--radius-img);overflow:hidden;
  box-shadow:var(--shadow-2);border:1px solid var(--line);
  background:#fff;
}
.feature-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.feature-body h3{font-size:22px;font-weight:600;line-height:1.4;}
.feature-body p{margin-top:14px;font-size:15.5px;color:var(--ink-2);line-height:1.8;}
.feature-list{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.feature-list li{
  position:relative;padding-left:24px;font-size:15px;color:var(--ink-2);
}
.feature-list li::before{
  content:"";position:absolute;left:0;top:8px;
  width:14px;height:14px;border-radius:5px;
  background:var(--brand-light);
  box-shadow:inset 0 0 0 2px var(--brand);
}

/* steps */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.step-card{
  position:relative;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-1);
}
.step-idx{
  width:36px;height:36px;border-radius:10px;
  background:var(--footer);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.step-card h3{font-size:17px;font-weight:600;}
.step-card p{margin-top:10px;font-size:14.5px;color:var(--ink-2);line-height:1.75;}

/* audience */
.audience-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap);}
.audience-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.audience-card:hover{border-color:rgba(15,76,216,.4);box-shadow:var(--shadow-2);}
.audience-card h3{font-size:18px;font-weight:600;}
.audience-card p{margin-top:10px;font-size:15px;color:var(--ink-2);line-height:1.8;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:999px;
  font-size:13px;font-weight:600;letter-spacing:.02em;
  background:var(--brand-light);color:var(--brand);
}
.tag--teal{background:rgba(0,184,160,.12);color:#00806E;}
.tag--orange{background:rgba(255,122,47,.14);color:#C4531A;}

/* FAQ */
.faq-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);overflow:hidden;}
.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;
  padding:22px 26px;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);
  transition:background .18s ease;
}
.faq-q:hover{background:#FBFCFE;}
.faq-item.is-open .faq-q{background:#F7FAFF;color:var(--brand);}
.faq-arrow{
  flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform .18s ease;
}
.faq-arrow::before,.faq-arrow::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink-3);
  transform:translate(-50%,-50%);border-radius:2px;
}
.faq-arrow::before{width:12px;height:2px;}
.faq-arrow::after{width:2px;height:12px;transition:opacity .18s ease;}
.faq-item.is-open .faq-arrow{transform:rotate(180deg);}
.faq-item.is-open .faq-arrow::after{opacity:0;}
.faq-a{display:none;padding:0 26px 24px;font-size:15px;line-height:1.8;color:var(--ink-2);}
.faq-item.is-open .faq-a{display:block;}

.back-row{display:flex;justify-content:center;margin-top:44px;}

/* CTA band */
.cta-band{
  background:var(--footer);color:#fff;
  padding:80px 0;
}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.cta-copy h2{font-size:30px;line-height:1.3;font-weight:700;}
.cta-copy p{margin-top:16px;font-size:16px;color:rgba(255,255,255,.82);line-height:1.85;}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:12px;}
.cta-points li{position:relative;padding-left:24px;font-size:15px;color:rgba(255,255,255,.86);}
.cta-points li::before{
  content:"";position:absolute;left:0;top:6px;width:14px;height:14px;border-radius:50%;
  background:rgba(0,184,160,.22);box-shadow:inset 0 0 0 2px var(--teal);
}
.form-card{
  background:#fff;border-radius:var(--radius-card);
  padding:30px;box-shadow:0 18px 46px rgba(0,0,0,.24);
}
.form-card h3{font-size:20px;font-weight:600;color:var(--ink);}
.form-card .form-tip{margin-top:8px;font-size:13.5px;color:var(--ink-3);}
.field{margin-top:16px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink-2);margin-bottom:7px;}
.field input,.field textarea{
  width:100%;border:1px solid var(--line-strong);border-radius:var(--radius-btn);
  padding:13px 14px;color:var(--ink);background:#fff;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field input{height:48px;}
.field textarea{min-height:104px;resize:vertical;line-height:1.7;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,76,216,.15);
}
.field.has-error input,.field.has-error textarea{border-color:#D92D20;}
.err-msg{display:none;margin-top:6px;font-size:12px;color:#D92D20;}
.field.has-error .err-msg{display:block;}
.check-row{display:flex;align-items:flex-start;gap:10px;margin-top:16px;font-size:13.5px;color:var(--ink-2);}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand);}
.form-card .btn{width:100%;margin-top:20px;}
.form-note{margin-top:12px;font-size:12.5px;color:var(--ink-3);text-align:center;}
.form-success{
  display:none;margin-top:16px;padding:12px 16px;border-radius:10px;
  background:rgba(0,184,160,.12);color:#00806E;font-size:14px;
}
.form-success.is-show{display:block;}

/* Footer */
.site-footer{background:var(--footer);color:#fff;padding:64px 0 24px;font-size:15px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.foot-brand .brand-text strong{color:#fff;font-size:19px;}
.foot-brand .brand-text em{color:rgba(255,255,255,.6);}
.foot-brand p{margin-top:16px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.7);max-width:360px;}
.foot-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.foot-links{display:flex;flex-direction:column;gap:10px;}
.foot-links a{color:rgba(255,255,255,.72);font-size:14.5px;}
.foot-links a:hover{color:#fff;}
.foot-contact{display:flex;flex-direction:column;gap:12px;font-size:14.5px;color:rgba(255,255,255,.72);}
.foot-contact li{display:flex;gap:10px;}
.foot-contact b{color:rgba(255,255,255,.92);font-weight:600;flex:0 0 auto;}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.58);
}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .nav-links{gap:0;}
  .nav-link{padding:8px 9px;font-size:14.5px;}
}
@media (max-width:1180px){
  .countdown{display:none;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .nav-side .btn-primary{display:none;}
  .sec{padding:64px 0;}
  .page-hero{padding:52px 0 96px;min-height:240px;}
  .page-hero h1{font-size:30px;}
  .sec-title{font-size:24px;}
  .cap-grid{grid-template-columns:repeat(2,1fr);}
  .feature-row{grid-template-columns:1fr;gap:28px;margin-bottom:56px;}
  .feature-row.is-reverse .feature-media{order:0;}
  .step-grid{grid-template-columns:repeat(2,1fr);}
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .audience-grid{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  body{font-size:15px;}
  .page-hero h1{font-size:28px;}
  .page-hero .lede{font-size:15.5px;}
  .sec{padding:48px 0;}
  .sec-title{font-size:22px;}
  .sec-head{margin-bottom:28px;}
  .metric-grid{grid-template-columns:1fr;}
  .metric-card{padding:20px;}
  .cap-card{padding:22px;}
  .faq-q{padding:18px;font-size:15px;}
  .faq-a{padding:0 18px 20px;}
  .cta-band{padding:56px 0;}
  .cta-copy h2{font-size:23px;}
  .form-card{padding:22px;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .foot-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:639px){
  .cap-grid{grid-template-columns:1fr;}
}
@media (max-width:480px){
  .btn{width:100%;padding:0 20px;}
  .hero-chips .chip{font-size:12px;}
  .step-grid{grid-template-columns:1fr;}
  .brand-text strong{font-size:17px;}
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
:root{
  --primary:#0F4CD8;
  --primary-dark:#0A3AA8;
  --primary-soft:#E8EFFE;
  --teal:#00B8A0;
  --teal-soft:#E3F7F4;
  --orange:#FF7A2F;
  --orange-soft:#FFF1E7;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --line:#E4E9F2;
  --line-soft:#D7DEEA;
  --text:#101828;
  --text-2:#475467;
  --text-3:#98A2B3;
  --footer-bg:#0B1B3A;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:16px;
  --shadow-1:0 6px 20px rgba(16,24,40,.06);
  --shadow-2:0 12px 32px rgba(16,24,40,.10);
  --container:1200px;
  --trans:180ms ease;
}

/* ===== Reset / Base ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:var(--primary);text-decoration:none;text-underline-offset:3px;transition:color var(--trans),background-color var(--trans),border-color var(--trans);}
a:hover{color:var(--primary-dark);}
img{max-width:100%;display:block;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,textarea,select{font:inherit;color:inherit;}
table{border-collapse:collapse;width:100%;}
strong,b{font-weight:700;}
em{font-style:normal;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

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

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(180%) blur(8px);
  transition:box-shadow var(--trans),border-color var(--trans);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,24,40,.08);}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:76px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--text);
}
.brand:hover{color:var(--text);}
.brand-icon{
  display:inline-flex;
  align-items:flex-end;
  gap:3px;
  height:26px;
}
.brand-icon i{
  display:block;
  width:5px;
  border-radius:3px;
  background:var(--primary);
}
.brand-icon i:nth-child(1){height:12px;}
.brand-icon i:nth-child(2){height:22px;background:var(--teal);}
.brand-icon i:nth-child(3){height:16px;}
.brand-icon i:nth-child(4){height:26px;background:var(--orange);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:20px;letter-spacing:.01em;}
.brand-text em{
  font-size:12px;
  color:var(--text-3);
  letter-spacing:.14em;
  font-weight:600;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  color:var(--text-2);
  border-radius:8px;
  white-space:nowrap;
}
.nav-link:hover{color:var(--primary);background:var(--primary-soft);}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--primary);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  white-space:nowrap;
}
.badge-live{background:var(--teal-soft);color:#00806F;}
.badge-live::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--teal);
  box-shadow:0 0 0 3px rgba(0,184,160,.18);
}
.badge-recommend{background:var(--primary);color:#fff;}
.badge-warm{background:var(--orange-soft);color:#B4490E;}
.countdown{
  display:flex;
  align-items:center;
  gap:3px;
  font-variant-numeric:tabular-nums;
}
.cd-block{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;
  height:44px;
  border-radius:8px;
  background:var(--footer-bg);
  color:#fff;
  font-size:17px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
}
.cd-sep{color:var(--text-3);font-weight:700;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:background-color var(--trans),color var(--trans),border-color var(--trans),transform var(--trans),box-shadow var(--trans);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(15,76,216,.22);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(15,76,216,.28);}
.btn-primary:active{transform:translateY(0);}
.btn-secondary{background:#fff;color:var(--primary);border-color:var(--line-soft);}
.btn-secondary:hover{background:#F2F6FF;border-color:var(--primary);color:var(--primary-dark);}
.btn-ghost-light{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.35);}
.btn-ghost-light:hover{background:rgba(255,255,255,.20);color:#fff;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn-disabled,.btn[disabled]{opacity:.5;pointer-events:none;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
}
.text-link .arrow{transition:transform var(--trans);}
.text-link:hover .arrow{transform:translateX(3px);}

/* ===== 汉堡按钮与抽屉 ===== */
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:10px;
  border:1px solid var(--line);
  background:#fff;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--text);
  transition:transform var(--trans),opacity var(--trans);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(11,27,58,.45);
  z-index:70;
  opacity:0;
  transition:opacity var(--trans);
}
.drawer-mask.is-open{opacity:1;}
.mobile-drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  width:min(320px,86vw);
  background:#fff;
  z-index:80;
  transform:translateX(102%);
  transition:transform 240ms ease;
  display:flex;
  flex-direction:column;
  padding:22px 20px 20px;
  box-shadow:-12px 0 32px rgba(16,24,40,.16);
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:18px;
}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--text-2);
}
.drawer-close:hover{border-color:var(--primary);color:var(--primary);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  padding:12px 14px;
  border-radius:10px;
  font-size:15px;
  color:var(--text-2);
  border:1px solid transparent;
}
.drawer-nav a:hover{background:var(--primary-soft);color:var(--primary);}
.drawer-nav a.is-active{
  background:var(--primary-soft);
  color:var(--primary);
  font-weight:600;
  border-color:rgba(15,76,216,.24);
}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);}

/* ===== 页头 Banner ===== */
.page-hero{
  position:relative;
  min-height:272px;
  display:flex;
  align-items:center;
  background-image:linear-gradient(100deg,rgba(11,27,58,.86) 0%,rgba(15,76,216,.72) 52%,rgba(15,76,216,.34) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-60px;
  bottom:-80px;
  width:320px;
  height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(0,184,160,.34),rgba(0,184,160,0) 68%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;padding-top:44px;padding-bottom:44px;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.78);
  margin-bottom:14px;
}
.breadcrumb a{color:rgba(255,255,255,.84);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{opacity:.6;}
.page-hero h1{
  font-size:40px;
  line-height:1.25;
  font-weight:700;
  letter-spacing:.01em;
  max-width:820px;
}
.page-hero .hero-sub{
  margin-top:14px;
  font-size:16px;
  line-height:1.7;
  color:rgba(255,255,255,.88);
  max-width:660px;
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:20px;
}
.hero-tags span{
  display:inline-flex;
  align-items:center;
  padding:5px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.26);
  color:#fff;
}

/* ===== 板块 ===== */
main{display:block;}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:#fff;}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--primary);
  background:var(--primary-soft);
  padding:5px 12px;
  border-radius:999px;
  margin-bottom:14px;
}
h2.sec-title{
  display:flex;
  align-items:flex-end;
  gap:10px;
  font-size:30px;
  line-height:1.3;
  font-weight:700;
  letter-spacing:.01em;
}
.sec-head.center h2.sec-title{justify-content:center;}
.beat-mark{display:inline-flex;align-items:flex-end;gap:3px;height:24px;flex-shrink:0;}
.beat-mark i{display:block;width:4px;border-radius:2px;background:var(--primary);}
.beat-mark i:nth-child(1){height:11px;}
.beat-mark i:nth-child(2){height:24px;background:var(--teal);}
.beat-mark i:nth-child(3){height:16px;background:var(--orange);}
.sec-desc{
  margin-top:16px;
  font-size:16px;
  line-height:1.8;
  color:var(--text-2);
}
h3{font-size:20px;line-height:1.4;font-weight:600;}

/* ===== 概览数据条 ===== */
.stat-band{
  background:var(--footer-bg);
  color:#fff;
  border-radius:var(--radius-card);
  padding:32px 36px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  margin-top:56px;
  box-shadow:var(--shadow-2);
}
.stat-item{position:relative;}
.stat-item + .stat-item::before{
  content:"";
  position:absolute;
  left:-12px;
  top:6px;
  bottom:6px;
  width:1px;
  background:rgba(255,255,255,.16);
}
.stat-num{
  font-size:34px;
  font-weight:700;
  line-height:1.1;
  font-variant-numeric:tabular-nums;
  color:#fff;
}
.stat-num em{font-size:16px;font-weight:600;color:rgba(255,255,255,.72);margin-left:4px;}
.stat-label{
  margin-top:8px;
  font-size:14px;
  color:rgba(255,255,255,.72);
  line-height:1.6;
}

/* ===== 场景区块：左右交错图文 ===== */
.scene-list{display:flex;flex-direction:column;gap:72px;}
.scene-row{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:56px;
  align-items:center;
}
.scene-row.is-reverse .scene-media{order:2;}
.scene-media{
  position:relative;
  border-radius:var(--radius-img);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  aspect-ratio:16/10;
  background:linear-gradient(135deg,#E8EFFE,#DCE6FB);
}
.scene-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 400ms ease;
}
.scene-row:hover .scene-media img{transform:scale(1.03);}
.scene-index{
  position:absolute;
  left:18px;
  top:18px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:52px;
  height:30px;
  padding:0 12px;
  border-radius:999px;
  background:rgba(11,27,58,.78);
  color:#fff;
  font-size:12px;
  font-weight:600;
  letter-spacing:.04em;
  font-variant-numeric:tabular-nums;
}
.scene-body h3{font-size:22px;}
.scene-body > p{
  margin-top:12px;
  color:var(--text-2);
  font-size:16px;
  line-height:1.8;
}
.point-list{margin-top:20px;display:flex;flex-direction:column;gap:12px;}
.point-list li{
  display:flex;
  gap:10px;
  font-size:15px;
  line-height:1.7;
  color:var(--text-2);
}
.point-list li::before{
  content:"";
  flex-shrink:0;
  width:18px;
  height:18px;
  margin-top:5px;
  border-radius:50%;
  background:var(--teal-soft);
  box-shadow:inset 0 0 0 1.5px var(--teal);
}
.scene-meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:22px;
}
.chip{
  display:inline-flex;
  align-items:center;
  padding:5px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  background:var(--primary-soft);
  color:var(--primary);
}
.chip-teal{background:var(--teal-soft);color:#00806F;}
.chip-orange{background:var(--orange-soft);color:#B4490E;}

/* ===== 流程步骤 ===== */
.flow-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  position:relative;
}
.flow-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px 24px;
  box-shadow:var(--shadow-1);
  transition:transform var(--trans),box-shadow var(--trans),border-color var(--trans);
}
.flow-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:rgba(15,76,216,.4);
}
.flow-step{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:10px;
  background:var(--primary-soft);
  color:var(--primary);
  font-weight:700;
  font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.flow-card h3{font-size:18px;}
.flow-card p{
  margin-top:10px;
  font-size:14px;
  line-height:1.8;
  color:var(--text-2);
}

/* ===== 运用方式 三列（差异化：图标横排卡） ===== */
.ability-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.ability-card{
  display:flex;
  gap:18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px 24px;
  box-shadow:var(--shadow-1);
  transition:transform var(--trans),box-shadow var(--trans),border-color var(--trans);
}
.ability-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:rgba(15,76,216,.4);
}
.ability-icon{
  flex-shrink:0;
  width:46px;
  height:46px;
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--primary-soft);
  color:var(--primary);
  font-size:18px;
  font-weight:700;
}
.ability-icon.teal{background:var(--teal-soft);color:#00806F;}
.ability-icon.orange{background:var(--orange-soft);color:#B4490E;}
.ability-card h3{font-size:18px;}
.ability-card p{
  margin-top:8px;
  font-size:14px;
  line-height:1.8;
  color:var(--text-2);
}

/* ===== 对比表 ===== */
.table-wrap{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.table-scroll{overflow-x:auto;}
table.compare{min-width:640px;font-size:14px;}
table.compare thead th{
  background:var(--footer-bg);
  color:#fff;
  text-align:left;
  padding:16px 20px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
  white-space:nowrap;
}
table.compare tbody td{
  padding:16px 20px;
  border-top:1px solid var(--line);
  color:var(--text-2);
  line-height:1.7;
}
table.compare tbody tr:hover td{background:#F7FAFF;}
table.compare tbody td:first-child{color:var(--text);font-weight:600;}

/* ===== FAQ ===== */
.faq-list{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 26px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  transition:background-color var(--trans),color var(--trans);
}
.faq-q:hover{background:#F7FAFF;color:var(--primary);}
.faq-q .caret{
  flex-shrink:0;
  width:26px;
  height:26px;
  border-radius:50%;
  border:1px solid var(--line-soft);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--primary);
  font-size:13px;
  transition:transform var(--trans),border-color var(--trans),background-color var(--trans);
}
.faq-item.is-open .faq-q{background:#F7FAFF;color:var(--primary);}
.faq-item.is-open .caret{transform:rotate(180deg);border-color:var(--primary);background:#fff;}
.faq-a{
  display:none;
  padding:0 26px 24px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  background:#F7FAFF;
}
.faq-item.is-open .faq-a{display:block;}

/* ===== CTA 通栏 ===== */
.cta-band{
  position:relative;
  background-image:linear-gradient(120deg,rgba(11,27,58,.94) 0%,rgba(10,58,168,.88) 100%),url("/assets/images/backpic/back-3.webp");
  background-size:cover;
  background-position:center;
  color:#fff;
  border-radius:var(--radius-card);
  padding:56px 48px;
  display:grid;
  grid-template-columns:1.4fr 1fr;
  gap:36px;
  align-items:center;
  overflow:hidden;
  box-shadow:var(--shadow-2);
}
.cta-band h2{
  display:flex;
  align-items:flex-end;
  gap:10px;
  font-size:28px;
  line-height:1.35;
  font-weight:700;
}
.cta-band .beat-mark i{background:rgba(255,255,255,.85);}
.cta-band .beat-mark i:nth-child(2){background:var(--teal);}
.cta-band .beat-mark i:nth-child(3){background:var(--orange);}
.cta-band p{
  margin-top:14px;
  font-size:15px;
  line-height:1.8;
  color:rgba(255,255,255,.82);
  max-width:620px;
}
.cta-actions{
  display:flex;
  flex-direction:column;
  gap:12px;
  align-items:flex-start;
}
.cta-note{
  font-size:13px;
  color:rgba(255,255,255,.66);
  line-height:1.7;
}
.back-home{
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:16px;
  margin-top:32px;
  padding:24px 28px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
}
.back-home p{font-size:15px;color:var(--text-2);}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--footer-bg);
  color:#fff;
  margin-top:96px;
  padding:64px 0 28px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.foot-brand .brand-text strong{font-size:20px;color:#fff;}
.foot-brand .brand-text em{color:rgba(255,255,255,.6);}
.foot-brand p{
  margin-top:16px;
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.72);
  max-width:340px;
}
.foot-col h4{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.foot-links{display:flex;flex-direction:column;gap:10px;}
.foot-links a{
  font-size:14px;
  color:rgba(255,255,255,.72);
}
.foot-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.foot-contact{display:flex;flex-direction:column;gap:10px;}
.foot-contact li{
  font-size:14px;
  color:rgba(255,255,255,.72);
  display:flex;
  gap:10px;
}
.foot-contact b{
  flex-shrink:0;
  font-weight:600;
  color:rgba(255,255,255,.9);
}
.foot-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.62);
}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .container{max-width:1080px;}
}
@media (max-width:1024px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .header-actions .countdown{display:none;}
  .header-actions .badge-live{display:none;}
  .header-actions .btn{display:none;}
  .header-inner{min-height:68px;justify-content:space-between;}
  .section{padding:64px 0;}
  .section-tight{padding:52px 0;}
  .page-hero h1{font-size:32px;}
  .scene-row{grid-template-columns:1fr;gap:28px;}
  .scene-row.is-reverse .scene-media{order:0;}
  .flow-grid{grid-template-columns:repeat(2,1fr);}
  .stat-band{grid-template-columns:repeat(2,1fr);padding:28px;}
  .ability-grid{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:44px 32px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .scene-list{gap:56px;}
}
@media (max-width:768px){
  .page-hero{min-height:236px;}
  .page-hero h1{font-size:28px;}
  h2.sec-title{font-size:22px;}
  .cta-band h2{font-size:22px;}
  .section{padding:48px 0;}
  .section-tight{padding:44px 0;}
  .sec-head{margin-bottom:32px;}
  .stat-num{font-size:26px;}
  .faq-q{padding:18px 20px;font-size:15px;}
  .faq-a{padding:0 20px 20px;}
  .flow-card{padding:22px 20px;}
  .back-home{padding:20px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .btn{width:100%;}
  .btn-sm{width:auto;}
  .hero-tags span{font-size:11px;}
  .flow-grid{grid-template-columns:1fr;}
  .stat-band{grid-template-columns:1fr;gap:20px;}
  .stat-item + .stat-item::before{display:none;}
  .stat-item{padding-top:16px;border-top:1px solid rgba(255,255,255,.14);}
  .stat-item:first-child{padding-top:0;border-top:0;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: category3 */
:root{
  --brand:#0F4CD8;
  --brand-deep:#0A3AA8;
  --brand-soft:#E8EFFE;
  --teal:#00B8A0;
  --orange:#FF7A2F;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --line:#E4E9F2;
  --ink:#101828;
  --ink-2:#475467;
  --ink-3:#98A2B3;
  --footer:#0B1B3A;
  --r-card:14px;
  --r-btn:10px;
  --r-img:16px;
  --shadow:0 6px 20px rgba(16,24,40,.06);
  --shadow-hover:0 12px 32px rgba(16,24,40,.10);
  --container:1200px;
  --ease:180ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;text-underline-offset:3px;transition:color var(--ease)}
a:hover{color:var(--brand-deep)}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{line-height:1.3;font-weight:700}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
@media (min-width:1280px){.container{max-width:1280px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(16,24,40,.09)}
.header-inner{display:flex;align-items:center;gap:20px;height:74px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{display:flex;align-items:flex-end;gap:3px;height:22px}
.brand-mark i{display:block;width:4px;border-radius:2px;background:var(--brand)}
.brand-mark i:nth-child(1){height:12px}
.brand-mark i:nth-child(2){height:22px;background:var(--teal)}
.brand-mark i:nth-child(3){height:16px;background:var(--orange)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:18px;color:var(--ink);letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:11px;color:var(--ink-3);letter-spacing:.1em}
.nav-links{display:flex;flex:1;justify-content:center;gap:2px}
.nav-link{
  position:relative;padding:8px 12px;border-radius:8px;
  font-size:15px;color:var(--ink-2);white-space:nowrap;
  transition:background var(--ease),color var(--ease);
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;
  border-radius:2px;background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.status-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--teal);color:#fff;
}
.status-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:#fff;opacity:.9}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink)}
.nav-toggle:hover{border-color:var(--brand);background:var(--brand-soft)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(15,76,216,.22)}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(15,76,216,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(15,76,216,.2)}
.btn-ghost{background:#fff;color:var(--brand);border:1px solid #D7DEEA}
.btn-ghost:hover{border-color:var(--brand);background:#F2F6FF;color:var(--brand-deep)}
.btn-light{background:#fff;color:var(--footer)}
.btn-light:hover{background:#EAF0FF;color:var(--footer);transform:translateY(-1px)}
.btn-line{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.42)}
.btn-line:hover{border-color:#fff;background:rgba(255,255,255,.12);color:#fff}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:9px}
.btn-block{width:100%}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;isolation:isolate;
  padding:56px 0 72px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background-image:
    linear-gradient(104deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.9) 44%,rgba(232,239,254,.74) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center right;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:22px}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span[aria-current]{color:var(--ink-2)}
.page-hero h1{font-size:40px;letter-spacing:-.01em;max-width:820px}
.hero-lead{margin-top:18px;font-size:17px;color:var(--ink-2);max-width:660px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;margin-top:46px;padding-top:26px;border-top:1px solid rgba(15,76,216,.14);
  max-width:760px;
}
.hero-stats b{
  display:block;font-size:28px;line-height:1.2;color:var(--brand);
  font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.hero-stats span{display:block;margin-top:6px;font-size:13px;color:var(--ink-3)}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section.surface{background:var(--surface)}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{font-size:30px;letter-spacing:-.01em}
.bars{display:inline-flex;align-items:flex-end;gap:3px;height:20px;margin-right:12px;vertical-align:-3px}
.bars i{display:block;width:4px;border-radius:2px;background:var(--brand)}
.bars i:nth-child(1){height:11px}
.bars i:nth-child(2){height:20px;background:var(--teal)}
.bars i:nth-child(3){height:15px;background:var(--orange)}
.section-head p{margin-top:16px;color:var(--ink-2);font-size:16px}

/* ---------- capability cards ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.cap-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 26px;box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.cap-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(15,76,216,.4)}
.cap-icon{
  width:46px;height:46px;border-radius:12px;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;margin-bottom:18px;
}
.cap-card h3{font-size:19px;font-weight:600;margin-bottom:10px}
.cap-card p{font-size:15px;color:var(--ink-2);line-height:1.8}
.cap-tag{
  display:inline-block;margin-top:18px;padding:4px 10px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;letter-spacing:.02em;
}

/* ---------- scenes ---------- */
.scene{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;margin-bottom:72px}
.scene:last-child{margin-bottom:0}
.scene.reverse .scene-media{order:2}
.scene-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--shadow)}
.scene-body .scene-tag{
  display:inline-block;padding:5px 12px;border-radius:999px;background:#E6F7F4;color:#0A8574;
  font-size:12px;font-weight:600;letter-spacing:.02em;margin-bottom:16px;
}
.scene-body h3{font-size:22px;margin-bottom:12px}
.scene-body > p{color:var(--ink-2);font-size:15px}
.scene-list{margin-top:20px;display:grid;gap:12px}
.scene-list li{position:relative;padding-left:26px;font-size:15px;color:var(--ink-2)}
.scene-list li::before{
  content:"";position:absolute;left:0;top:9px;width:14px;height:8px;
  border-left:2px solid var(--teal);border-bottom:2px solid var(--teal);
  transform:rotate(-45deg);border-radius:1px;
}

/* ---------- flow ---------- */
.flow{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:20px;position:relative}
.flow::before{
  content:"";position:absolute;left:24px;right:24px;top:38px;height:1px;
  background:repeating-linear-gradient(90deg,var(--line) 0 8px,transparent 8px 16px);
}
.flow-step{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px 22px;box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.flow-step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(15,76,216,.35)}
.flow-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;background:var(--brand);color:#fff;
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.flow-step h3{font-size:17px;font-weight:600;margin-bottom:8px}
.flow-step p{font-size:14px;color:var(--ink-2);line-height:1.8}

/* ---------- metrics ---------- */
.metrics{
  background:var(--footer);color:#fff;border-radius:20px;padding:52px 48px;
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:36px;
}
.metric b{
  display:block;font-size:38px;line-height:1.15;letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;color:#fff;
}
.metric strong{display:block;margin-top:10px;font-size:16px;font-weight:600;color:rgba(255,255,255,.95)}
.metric span{display:block;margin-top:8px;font-size:14px;color:rgba(255,255,255,.66);line-height:1.75}
.metric b em{font-style:normal;font-size:20px;color:var(--teal);margin-left:2px}
.metric + .metric{border-left:1px solid rgba(255,255,255,.14);padding-left:36px}

/* ---------- faq ---------- */
.faq{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow)}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);
  transition:background var(--ease),color var(--ease);
}
.faq-q:hover{background:#F7FAFF}
.faq-item.is-open .faq-q{background:#F7FAFF;color:var(--brand)}
.faq-q .chev{flex-shrink:0;transition:transform var(--ease);color:var(--ink-3)}
.faq-item.is-open .chev{transform:rotate(180deg);color:var(--brand)}
.faq-a{display:none;padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:880px}
.faq-item.is-open .faq-a{display:block}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--footer);color:#fff;border-radius:20px;padding:56px 48px;
  display:grid;grid-template-columns:1.25fr 1fr;gap:36px;align-items:center;
}
.cta-band h2{font-size:28px;color:#fff}
.cta-band h2 .bars i:nth-child(1){background:#7FA6FF}
.cta-band h2 .bars i:nth-child(2){background:var(--teal)}
.cta-band h2 .bars i:nth-child(3){background:var(--orange)}
.cta-band p{margin-top:14px;font-size:15px;color:rgba(255,255,255,.72);max-width:520px}
.cta-actions{display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.cta-note{font-size:13px;color:rgba(255,255,255,.55)}

/* ---------- footer ---------- */
.site-footer{background:var(--footer);color:#fff;padding:64px 0 0;margin-top:96px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.15fr;gap:40px;padding-bottom:44px}
.foot-brand .brand-text strong{color:#fff;font-size:19px}
.foot-brand .brand-text em{color:rgba(255,255,255,.58)}
.foot-brand .brand-mark{margin-bottom:2px}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);max-width:330px}
.foot-col h4{font-size:15px;color:#fff;margin-bottom:16px}
.foot-links a{display:block;padding:6px 0;font-size:14px;color:rgba(255,255,255,.72)}
.foot-links a:hover{color:#fff}
.foot-contact li{display:flex;gap:10px;padding:6px 0;font-size:14px;color:rgba(255,255,255,.72)}
.foot-contact b{font-weight:500;color:rgba(255,255,255,.5);min-width:62px;flex-shrink:0}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:22px 0 30px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.56);
}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,27,58,.45);z-index:90;
  opacity:0;pointer-events:none;transition:opacity var(--ease);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,360px);z-index:95;
  background:#fff;padding:24px 22px;display:flex;flex-direction:column;gap:6px;
  transform:translateX(102%);transition:transform 220ms ease;
  box-shadow:-16px 0 40px rgba(16,24,40,.18);overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  display:grid;place-items:center;font-size:18px;color:var(--ink-2);
}
.drawer-close:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.drawer .nav-link{padding:13px 14px;font-size:16px;border-radius:10px}
.drawer .nav-link.is-active{background:var(--brand-soft)}
.drawer .nav-link.is-active::after{display:none}
.drawer-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .header-inner{gap:14px;height:68px}
  .brand{margin-right:auto}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow::before{display:none}
  .scene{grid-template-columns:1fr;gap:28px;margin-bottom:56px}
  .scene.reverse .scene-media{order:0}
  .cta-band{grid-template-columns:1fr;padding:44px 32px}
  .cta-actions{flex-direction:row;flex-wrap:wrap}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:15px}
  .container{padding:0 18px}
  .section{padding:48px 0}
  .page-hero{padding:36px 0 52px}
  .page-hero h1{font-size:28px}
  .hero-lead{font-size:16px}
  .section-head h2{font-size:22px}
  .hero-stats{grid-template-columns:1fr;gap:16px;margin-top:34px}
  .hero-stats b{font-size:24px}
  .grid-4{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .metrics{grid-template-columns:1fr;padding:34px 24px;gap:24px}
  .metric + .metric{border-left:0;padding-left:0;border-top:1px solid rgba(255,255,255,.14);padding-top:22px}
  .metric b{font-size:30px}
  .faq-q{font-size:15px;padding:17px 18px}
  .faq-a{padding:0 18px 18px}
  .cta-band{padding:34px 22px}
  .cta-band h2{font-size:22px}
  .site-footer{margin-top:64px;padding-top:48px}
  .foot-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .foot-brand p{max-width:none}
  .status-badge{display:none}
}
@media (max-width:520px){
  .btn{width:100%;padding:0 18px}
  .hero-actions,.cta-actions{flex-direction:column;align-items:stretch}
  .scene-body h3{font-size:19px}
}

/* roulang page: category4 */
:root{
  --brand:#0F4CD8;
  --brand-dark:#0A3AA8;
  --brand-soft:#E8EFFE;
  --teal:#00B8A0;
  --teal-deep:#048B7A;
  --orange:#FF7A2F;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --line:#E4E9F2;
  --text:#101828;
  --text-2:#475467;
  --text-3:#98A2B3;
  --footer:#0B1B3A;
  --radius:14px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow:0 6px 20px rgba(16,24,40,.06);
  --shadow-hover:0 12px 32px rgba(16,24,40,.10);
  --font:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --section-y:88px;
}
*,*::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(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;text-underline-offset:3px}
a:hover{color:var(--brand-dark)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit}
input,textarea{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .18s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,24,40,.08)}
.header-inner{display:flex;align-items:center;gap:16px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{display:inline-flex;align-items:flex-end;gap:3px;height:24px}
.brand-mark i{width:4px;border-radius:2px;display:block}
.brand-mark i:nth-child(1){height:11px;background:var(--orange)}
.brand-mark i:nth-child(2){height:17px;background:var(--brand)}
.brand-mark i:nth-child(3){height:23px;background:var(--teal)}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:18px;font-weight:700;letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:12px;color:var(--text-3);letter-spacing:.06em}

.nav-links{display:flex;align-items:center;gap:2px;margin:0 auto}
.nav-link{
  position:relative;
  padding:8px 12px;
  font-size:15px;
  color:var(--text-2);
  border-radius:8px;
  transition:color .18s ease,background-color .18s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:2px;
  background:var(--brand);border-radius:2px;
}
.nav-cta-mobile{display:none}

.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.status-badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  padding:5px 12px;border-radius:var(--radius-pill);
  background:var(--teal-deep);color:#fff;
}
.status-badge .dot{width:6px;height:6px;border-radius:50%;background:#fff;display:inline-block}
.status-badge.is-ended{background:#E4E9F2;color:var(--text-2)}
.countdown{display:flex;gap:6px}
.cd-cell{
  width:40px;height:44px;border-radius:8px;
  background:var(--footer);color:#fff;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  line-height:1.05;
}
.cd-cell b{font-size:15px;font-weight:700;font-variant-numeric:tabular-nums}
.cd-cell i{font-style:normal;font-size:10px;color:rgba(255,255,255,.62)}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;
  border-radius:10px;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .18s ease,opacity .18s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-mask{position:fixed;inset:0;background:rgba(11,27,58,.45);z-index:65}
.nav-mask[hidden]{display:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(15,76,216,.28)}
.btn-primary:active{transform:none;box-shadow:none}
.btn-outline{background:#fff;border-color:#D7DEEA;color:var(--brand)}
.btn-outline:hover{border-color:var(--brand);background:#F2F6FF;color:var(--brand-dark)}
.btn-outline:active{transform:translateY(1px)}
.btn-light{background:#fff;color:var(--brand);border-color:#fff}
.btn-light:hover{background:#E8EFFE;color:var(--brand-dark)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand)}
.text-link .arrow{transition:transform .18s ease}
.text-link:hover .arrow{transform:translateX(3px)}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  min-height:264px;
  display:flex;align-items:center;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.9) 48%,rgba(232,239,254,.78) 100%);
}
.page-hero .container{position:relative;z-index:1;padding-top:56px;padding-bottom:60px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-3);margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a{color:var(--brand)}
.breadcrumb span{color:var(--text-3)}
.breadcrumb em{font-style:normal;color:var(--text-2)}
.page-hero h1{font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.01em;max-width:900px}
.page-hero .lead{margin-top:16px;font-size:17px;color:var(--text-2);max-width:760px}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  padding:5px 12px;border-radius:var(--radius-pill);
  background:var(--brand-soft);color:var(--brand);
}
.tag.tag-teal{background:rgba(0,184,160,.12);color:var(--teal-deep)}
.tag.tag-orange{background:rgba(255,122,47,.13);color:#C2521A}

/* ---------- section ---------- */
.section{padding:var(--section-y) 0}
.section-alt{background:#fff}
.section-head{max-width:780px;margin-bottom:44px}
.section-title{font-size:30px;line-height:1.3;font-weight:700;color:var(--text);display:flex;align-items:flex-end;flex-wrap:wrap}
.section-title::before{
  content:"";display:inline-block;width:22px;height:22px;margin-right:12px;margin-bottom:5px;
  background-image:linear-gradient(var(--brand),var(--brand)),linear-gradient(var(--teal),var(--teal)),linear-gradient(var(--orange),var(--orange));
  background-size:4px 22px,4px 15px,4px 9px;
  background-position:0 100%,9px 100%,18px 100%;
  background-repeat:no-repeat;
}
.section-sub{margin-top:14px;font-size:16px;color:var(--text-2);max-width:720px}

/* ---------- price ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;padding-top:14px}
.price-card{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:32px 28px;box-shadow:var(--shadow);
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.price-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);border-color:rgba(15,76,216,.4)}
.price-card.is-featured{border:2px solid var(--brand);transform:translateY(-12px);box-shadow:0 16px 40px rgba(15,76,216,.14)}
.price-card.is-featured:hover{transform:translateY(-16px)}
.plan-badge{
  position:absolute;top:-13px;right:24px;
  background:var(--orange);color:#fff;font-size:12px;font-weight:600;letter-spacing:.02em;
  padding:4px 12px;border-radius:var(--radius-pill);
}
.plan-name{font-size:20px;font-weight:600}
.plan-desc{margin-top:6px;font-size:14px;color:var(--text-3)}
.plan-price{
  margin:20px 0 4px;font-size:36px;font-weight:700;line-height:1.1;
  color:var(--brand);font-variant-numeric:tabular-nums;display:flex;align-items:baseline;
}
.plan-price .cur{font-size:20px;margin-right:2px}
.plan-price small{font-size:14px;font-weight:500;color:var(--text-3);margin-left:6px}
.plan-note{font-size:13px;color:var(--text-3)}
.plan-feats{margin:22px 0 26px;display:grid;gap:12px}
.plan-feats li{position:relative;padding-left:26px;font-size:14px;color:var(--text-2)}
.plan-feats li::before{
  content:"";position:absolute;left:2px;top:6px;width:13px;height:7px;
  border-left:2px solid var(--teal);border-bottom:2px solid var(--teal);
  transform:rotate(-45deg);
}
.plan-feats li b{color:var(--text);font-weight:600}

/* ---------- compare table ---------- */
.table-wrap{
  overflow-x:auto;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);
  -webkit-overflow-scrolling:touch;
}
.cmp-table{width:100%;min-width:780px;border-collapse:collapse;font-size:15px}
.cmp-table th,.cmp-table td{padding:16px 22px;text-align:left;border-bottom:1px solid var(--line)}
.cmp-table thead th{background:var(--footer);color:#fff;font-weight:600;font-size:15px;white-space:nowrap}
.cmp-table thead th:first-child{border-top-left-radius:13px}
.cmp-table thead th:last-child{border-top-right-radius:13px}
.cmp-table thead th.is-mid{background:#123157;color:#9FC0FF}
.cmp-table tbody td:first-child{color:var(--text);font-weight:500}
.cmp-table tbody td{color:var(--text-2);font-variant-numeric:tabular-nums}
.cmp-table tbody tr:hover{background:#F7FAFF}
.cmp-table tbody tr:last-child td{border-bottom:0}
.cmp-table td.is-mid,.cmp-table th.is-mid{background:rgba(15,76,216,.04)}
.cmp-foot{margin-top:18px;font-size:13px;color:var(--text-3)}

/* ---------- choose ---------- */
.choose-grid{display:grid;grid-template-columns:1.02fr 1fr;gap:48px;align-items:center}
.choose-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:16px;box-shadow:var(--shadow);
}
.choose-list{display:grid;gap:18px}
.choose-item{
  position:relative;background:#fff;border:1px solid var(--line);border-left:3px solid var(--brand-soft);
  border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow);
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.choose-item:hover{border-color:rgba(15,76,216,.4);border-left-color:var(--brand);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.choose-item h3{font-size:18px;font-weight:600}
.choose-item p{margin-top:8px;font-size:15px;color:var(--text-2)}
.choose-item .who{display:inline-block;margin-top:12px;font-size:12px;font-weight:600;color:var(--teal-deep);background:rgba(0,184,160,.12);border-radius:var(--radius-pill);padding:4px 10px}

/* ---------- steps ---------- */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow);
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.step:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);border-color:rgba(15,76,216,.4)}
.step-num{
  width:36px;height:36px;border-radius:10px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-variant-numeric:tabular-nums;
}
.step h3{margin-top:16px;font-size:17px;font-weight:600}
.step p{margin-top:8px;font-size:14px;color:var(--text-2)}

/* ---------- assure band ---------- */
.assure-band{background:var(--footer);color:#fff;padding:56px 0}
.assure-grid{display:grid;grid-template-columns:1fr 1.5fr;gap:44px;align-items:center}
.assure-grid h2{font-size:26px;line-height:1.35;font-weight:700;color:#fff}
.assure-grid .assure-sub{margin-top:12px;font-size:15px;color:rgba(255,255,255,.72)}
.assure-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.stat b{display:block;font-size:32px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;line-height:1.2}
.stat span{display:block;margin-top:6px;font-size:14px;color:rgba(255,255,255,.7)}
.stat em{font-style:normal;font-size:16px;color:var(--teal)}

/* ---------- faq ---------- */
.faq{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);
  transition:background-color .18s ease,color .18s ease;
}
.faq-q:hover{background:#F7FAFF}
.faq-q .chev{
  flex:0 0 auto;width:10px;height:10px;
  border-right:2px solid var(--text-3);border-bottom:2px solid var(--text-3);
  transform:rotate(45deg);transition:transform .18s ease,border-color .18s ease;
  margin-right:4px;
}
.faq-item.is-open .faq-q{background:#F7FAFF;color:var(--brand)}
.faq-item.is-open .chev{transform:rotate(-135deg);border-color:var(--brand)}
.faq-a{display:none;padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--text-2)}
.faq-item.is-open .faq-a{display:block}

/* ---------- cta ---------- */
.cta-band{background:var(--footer);color:#fff}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;padding:60px 0;flex-wrap:wrap}
.cta-copy{max-width:620px}
.cta-copy h2{font-size:28px;line-height:1.3;font-weight:700;color:#fff}
.cta-copy p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.74)}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.cta-note{margin-top:14px;font-size:13px;color:rgba(255,255,255,.6)}
.cta-band .section-title{color:#fff}
.cta-band .section-title::before{
  background-image:linear-gradient(#fff,#fff),linear-gradient(var(--teal),var(--teal)),linear-gradient(var(--orange),var(--orange));
  background-size:4px 22px,4px 15px,4px 9px;
}

/* ---------- footer ---------- */
.site-footer{background:var(--footer);color:#fff;font-size:15px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding:64px 0 40px}
.foot-brand .brand-text strong{color:#fff;font-size:18px}
.foot-brand .brand-text em{color:rgba(255,255,255,.55)}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);max-width:340px}
.foot-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.foot-links{display:grid;gap:10px}
.foot-links a{color:rgba(255,255,255,.72);font-size:14px;transition:color .18s ease}
.foot-links a:hover{color:#fff}
.foot-contact li{font-size:14px;color:rgba(255,255,255,.72);margin-bottom:10px;line-height:1.6}
.foot-contact b{display:inline-block;min-width:64px;color:rgba(255,255,255,.5);font-weight:500}
.foot-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .countdown{display:none}
}
@media (max-width:1024px){
  :root{--section-y:64px}
  .nav-toggle{display:flex}
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:min(84vw,340px);
    background:#fff;flex-direction:column;align-items:stretch;gap:4px;
    padding:88px 20px 24px;margin:0;
    transform:translateX(100%);transition:transform .24s ease;
    box-shadow:-12px 0 40px rgba(11,27,58,.18);
    overflow-y:auto;z-index:70;
  }
  .nav-links.open{transform:none}
  .nav-link{padding:14px 12px;font-size:16px;border-radius:10px}
  .nav-link.is-active::after{display:none}
  .nav-link.is-active{background:var(--brand-soft)}
  .nav-cta-mobile{display:inline-flex;margin-top:16px;width:100%}
  .header-cta{display:none}
  .page-hero h1{font-size:32px}
  .price-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto;gap:28px}
  .price-card.is-featured,.price-card.is-featured:hover{transform:none}
  .choose-grid{grid-template-columns:1fr;gap:32px}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .assure-grid{grid-template-columns:1fr;gap:28px}
  .cta-inner{padding:52px 0}
}
@media (max-width:767px){
  :root{--section-y:48px}
  body{font-size:15px}
  .container{padding:0 18px}
  .brand-text strong{font-size:17px}
  .page-hero{min-height:220px}
  .page-hero .container{padding-top:40px;padding-bottom:44px}
  .page-hero h1{font-size:28px}
  .page-hero .lead{font-size:15px}
  .section-title{font-size:22px}
  .section-title::before{margin-bottom:3px}
  .section-head{margin-bottom:30px}
  .plan-price{font-size:32px}
  .assure-grid h2{font-size:22px}
  .assure-stats{grid-template-columns:1fr;gap:18px}
  .cta-copy h2{font-size:22px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 28px}
  .foot-brand{grid-column:1 / -1}
  .faq-q{font-size:15px;padding:18px}
  .faq-a{padding:0 18px 18px}
}
@media (max-width:520px){
  .steps-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .header-inner{gap:10px}
  .status-badge{display:none}
}

/* roulang page: category5 */
:root{
  --brand:#0F4CD8;
  --brand-deep:#0A3AA8;
  --brand-soft:#E8EFFE;
  --teal:#00B8A0;
  --orange:#FF7A2F;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --line:#E4E9F2;
  --text:#101828;
  --text-2:#475467;
  --text-3:#98A2B3;
  --footer:#0B1B3A;
  --r-card:14px;
  --r-btn:10px;
  --r-img:14px;
  --sh-1:0 6px 20px rgba(16,24,40,.06);
  --sh-2:0 12px 32px rgba(16,24,40,.10);
  --sh-3:0 18px 44px rgba(16,24,40,.14);
  --sp-sec:92px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;text-underline-offset:3px;transition:color .18s ease,border-color .18s ease,background-color .18s ease,box-shadow .18s ease,transform .18s ease}
a:hover{color:var(--brand-deep)}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1280px){.container{max-width:1280px}}

/* ============ 通用按钮 / 徽章 / 标签 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(15,76,216,.22)}
.btn--primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(15,76,216,.28)}
.btn--primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(15,76,216,.24)}
.btn--ghost{background:#fff;color:var(--brand);border:1px solid #D7DEEA}
.btn--ghost:hover{background:#F2F6FF;border-color:var(--brand);color:var(--brand-deep)}
.btn--light{background:#fff;color:var(--brand-deep)}
.btn--light:hover{background:#E8EFFE;color:var(--brand-deep);transform:translateY(-1px)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn--block{width:100%}
.btn--text{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px}
.btn--text i{font-style:normal;transition:transform .18s ease}
.btn--text:hover i{transform:translateX(3px)}

.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em}
.badge--live{background:rgba(0,184,160,.12);color:#00806F}
.badge--soon{background:rgba(255,122,47,.14);color:#C2521A}
.badge--rec{background:var(--brand);color:#fff}
.badge--soft{background:var(--brand-soft);color:var(--brand-deep)}
.badge--dot::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;display:inline-block}

.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:6px;background:var(--brand-soft);color:var(--brand-deep);font-size:12px;font-weight:600;letter-spacing:.02em}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:saturate(160%) blur(8px);border-bottom:1px solid var(--line);transition:box-shadow .18s ease}
.site-header.is-scrolled{box-shadow:0 8px 26px rgba(16,24,40,.08)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{display:inline-flex;align-items:flex-end;gap:3px;height:26px}
.brand-mark i{display:block;width:4px;border-radius:2px;background:var(--brand)}
.brand-mark i:nth-child(1){height:12px;background:var(--teal)}
.brand-mark i:nth-child(2){height:20px}
.brand-mark i:nth-child(3){height:26px;background:var(--orange)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:18px;font-weight:800;letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:11px;color:var(--text-3);letter-spacing:.14em}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{position:relative;display:inline-block;padding:10px 12px;border-radius:8px;font-size:14.5px;font-weight:500;color:var(--text-2)}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .18s ease}
.nav-link:hover{color:var(--brand);background:#F2F6FF}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:8px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative;transition:transform .18s ease,background-color .18s ease}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .18s ease,top .18s ease}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{top:0;transform:rotate(45deg)}
.nav-toggle.is-open span::after{top:0;transform:rotate(-45deg)}

.drawer{position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);background:#fff;z-index:90;transform:translateX(102%);transition:transform .22s ease;box-shadow:-12px 0 40px rgba(11,27,58,.18);display:flex;flex-direction:column;padding:22px 22px 26px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:18px;line-height:1;color:var(--text-2)}
.drawer-close:hover{background:#F2F6FF;color:var(--brand);border-color:var(--brand)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{display:block;padding:13px 14px;border-radius:10px;font-size:15.5px;font-weight:500;color:var(--text-2)}
.drawer-nav a:hover{background:#F2F6FF;color:var(--brand)}
.drawer-nav a.is-active{background:var(--brand-soft);color:var(--brand-deep);font-weight:600}
.drawer-foot{margin-top:auto;padding-top:22px;display:flex;flex-direction:column;gap:12px}
.drawer-meta{font-size:13px;color:var(--text-3);text-align:center}
.overlay{position:fixed;inset:0;background:rgba(11,27,58,.45);opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;z-index:80}
.overlay.is-open{opacity:1;visibility:visible}
body.no-scroll{overflow:hidden}

/* ============ 页头 Banner ============ */
.page-hero{position:relative;overflow:hidden;background:var(--footer)}
.page-hero__media{position:absolute;inset:0}
.page-hero__media img{width:100%;height:100%;object-fit:cover;opacity:.42}
.page-hero__mask{position:absolute;inset:0;background:linear-gradient(115deg,rgba(11,27,58,.92) 0%,rgba(15,76,216,.72) 58%,rgba(11,27,58,.78) 100%)}
.page-hero__inner{position:relative;padding:56px 0 62px;min-height:262px;display:flex;flex-direction:column;justify-content:center}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:16px}
.crumb a{color:rgba(255,255,255,.82)}
.crumb a:hover{color:#fff}
.crumb span.sep{color:rgba(255,255,255,.45)}
.page-hero h1{font-size:40px;line-height:1.25;font-weight:700;color:#fff;letter-spacing:.01em}
.page-hero .lead{margin-top:14px;max-width:660px;font-size:16.5px;color:rgba(255,255,255,.86)}
.page-hero__badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.page-hero .badge--onlight{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.28)}

/* ============ 状态条 ============ */
.status-strip{background:#fff;border-bottom:1px solid var(--line)}
.status-strip__inner{display:flex;flex-wrap:wrap;align-items:center;gap:14px 34px;padding:18px 0}
.status-item{display:flex;align-items:baseline;gap:8px;font-size:14px;color:var(--text-2)}
.status-item b{font-size:20px;font-weight:700;color:var(--text);letter-spacing:.01em}
.status-item b.accent{color:var(--brand)}
.status-item b.teal{color:#00806F}
.status-sep{width:1px;height:26px;background:var(--line);display:none}
@media (min-width:900px){.status-sep{display:block}}

/* ============ 板块通用 ============ */
.section{padding:var(--sp-sec) 0}
.section--tight{padding:64px 0}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.1em;color:var(--brand);text-transform:uppercase;margin-bottom:12px}
.sec-title{position:relative;padding-left:18px;font-size:30px;line-height:1.3;font-weight:700;color:var(--text)}
.sec-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:linear-gradient(180deg,var(--brand) 0 46%,var(--teal) 46% 72%,var(--orange) 72% 100%)}
.sec-desc{margin-top:14px;color:var(--text-2);font-size:16px}
.h3{font-size:20px;font-weight:600;line-height:1.45}

/* ============ 流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:8px}
.flow-step{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px 24px;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.flow-step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,76,216,.4)}
.flow-step .num{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:10px;background:var(--brand-soft);color:var(--brand-deep);font-size:15px;font-weight:700;margin-bottom:16px}
.flow-step h3{font-size:18px;font-weight:600;margin-bottom:10px}
.flow-step p{font-size:14.5px;color:var(--text-2);line-height:1.7}
.flow-step .step-time{display:inline-block;margin-top:14px;font-size:12.5px;font-weight:600;color:#00806F}

/* ============ FAQ 布局 ============ */
.faq-layout{display:grid;grid-template-columns:264px minmax(0,1fr);gap:36px;align-items:start}
.cat-nav{position:sticky;top:96px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:22px 20px;box-shadow:var(--sh-1)}
.cat-nav h2{font-size:15px;font-weight:700;color:var(--text);margin-bottom:14px}
.cat-nav ol{display:flex;flex-direction:column;gap:2px;counter-reset:cn}
.cat-nav li a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:9px;font-size:14.5px;color:var(--text-2);border-left:3px solid transparent}
.cat-nav li a::before{counter-increment:cn;content:counter(cn,decimal-leading-zero);font-size:12px;font-weight:700;color:var(--text-3);letter-spacing:.04em}
.cat-nav li a:hover{background:#F2F6FF;color:var(--brand)}
.cat-nav li a.is-current{background:var(--brand-soft);color:var(--brand-deep);font-weight:600;border-left-color:var(--brand)}
.cat-nav li a.is-current::before{color:var(--brand)}
.cat-nav__foot{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:13.5px;color:var(--text-2);line-height:1.7}
.cat-nav__foot a{font-weight:600}

.faq-group{margin-bottom:34px}
.faq-group:last-child{margin-bottom:0}
.faq-group__head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.faq-group__head h2{font-size:20px;font-weight:600}
.faq-group__head .count{font-size:12.5px;color:var(--text-3)}

.acc{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.acc-item + .acc-item{border-top:1px solid var(--line)}
.acc-btn{width:100%;display:flex;align-items:center;gap:16px;padding:20px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text);transition:background-color .18s ease}
.acc-btn:hover{background:#F7FAFF}
.acc-btn .idx{flex:0 0 auto;font-size:13px;font-weight:700;color:var(--text-3);letter-spacing:.04em;min-width:26px}
.acc-btn .q{flex:1 1 auto;line-height:1.55}
.acc-btn .ico{flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:var(--brand-soft);color:var(--brand-deep);display:flex;align-items:center;justify-content:center;font-size:15px;line-height:1;transition:transform .18s ease,background-color .18s ease}
.acc-btn[aria-expanded="true"]{background:#F7FAFF}
.acc-btn[aria-expanded="true"] .ico{transform:rotate(180deg);background:var(--brand);color:#fff}
.acc-panel{max-height:0;overflow:hidden;transition:max-height .26s ease}
.acc-panel__inner{padding:0 22px 22px 64px;font-size:15px;line-height:1.8;color:var(--text-2)}
.acc-panel__inner p + p{margin-top:12px}
.acc-panel__inner strong{color:var(--text);font-weight:600}

/* ============ 支持渠道 ============ */
.support-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.support-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.support-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,76,216,.4)}
.support-card .ico{width:44px;height:44px;border-radius:12px;background:var(--brand-soft);color:var(--brand-deep);display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px}
.support-card h3{font-size:17.5px;font-weight:600;margin-bottom:10px}
.support-card p{font-size:14.5px;color:var(--text-2)}
.support-card .meta{margin-top:14px;font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:8px}

.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:44px;align-items:center}
.split__media{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-2);position:relative}
.split__media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.split__body h2{margin-bottom:16px}
.check-list{display:flex;flex-direction:column;gap:12px;margin-top:20px}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2)}
.check-list li::before{content:"✓";flex:0 0 auto;width:20px;height:20px;border-radius:50%;background:rgba(0,184,160,.14);color:#00806F;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:3px}

/* ============ CTA 通栏 ============ */
.cta-band{background:var(--footer);color:#fff;padding:72px 0}
.cta-band__inner{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:40px;align-items:center}
.cta-band h2{font-size:30px;line-height:1.3;font-weight:700;color:#fff}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.78);font-size:15.5px}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-note{margin-top:18px;font-size:13px;color:rgba(255,255,255,.6)}
.back-row{display:flex;justify-content:center;padding:44px 0 0}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer);color:rgba(255,255,255,.86);padding:64px 0 26px;font-size:15px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.foot-brand .brand-text strong{color:#fff}
.foot-brand .brand-text em{color:rgba(255,255,255,.5)}
.foot-brand p{margin-top:16px;font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.7);max-width:340px}
.foot-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.foot-links{display:flex;flex-direction:column;gap:10px}
.foot-links a{color:rgba(255,255,255,.78);font-size:14.5px}
.foot-links a:hover{color:#fff}
.foot-contact{display:flex;flex-direction:column;gap:10px;font-size:14.5px;color:rgba(255,255,255,.78)}
.foot-contact li b{color:rgba(255,255,255,.5);font-weight:500;margin-right:8px}
.foot-bottom{margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.58)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 22px}
}
@media (max-width:1023px){
  :root{--sp-sec:64px}
  .nav-links,.header-actions .btn{display:none}
  .nav-toggle{display:flex}
  .header-actions{margin-left:auto}
  .header-inner{height:66px}
  .page-hero h1{font-size:32px}
  .page-hero__inner{padding:44px 0 50px;min-height:230px}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr))}
  .faq-layout{grid-template-columns:1fr;gap:26px}
  .cat-nav{position:static}
  .cat-nav ol{flex-direction:row;flex-wrap:wrap;gap:8px}
  .cat-nav li a{border-left:0;border:1px solid var(--line);padding:8px 12px}
  .cat-nav li a.is-current{border-color:var(--brand)}
  .split{grid-template-columns:1fr;gap:28px}
  .cta-band__inner{grid-template-columns:1fr;gap:26px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:767px){
  :root{--sp-sec:48px}
  body{font-size:15px}
  .page-hero h1{font-size:28px}
  .sec-title{font-size:22px}
  .section-head{margin-bottom:32px}
  .flow{grid-template-columns:1fr}
  .support-grid{grid-template-columns:1fr}
  .acc-btn{padding:16px 16px;gap:12px;font-size:15px}
  .acc-panel__inner{padding:0 16px 18px 16px}
  .cta-band{padding:52px 0}
  .cta-band h2{font-size:22px}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .status-strip__inner{gap:12px 24px;padding:14px 0}
  .status-item b{font-size:18px}
  .split__media img{aspect-ratio:4/3}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .page-hero h1{font-size:24px;line-height:1.3}
  .page-hero .lead{font-size:15px}
  .btn{width:100%;padding:0 20px}
  .btn--text{width:auto}
  .cta-band__actions{flex-direction:column;align-items:stretch}
  .status-item{flex:1 1 45%}
  .crumb{flex-wrap:wrap;font-size:12.5px}
}