/* roulang page: index */
:root{
  --c-primary:#16443F;
  --c-primary-deep:#0E2F2B;
  --c-accent:#E07B39;
  --c-accent-hover:#C4662A;
  --c-mint:#D6E8E1;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-ink:#1A1D1C;
  --c-ink-2:#56605C;
  --c-ink-3:#8A938E;
  --c-line:#E3DFD6;
  --c-line-strong:#CFC9BC;
  --c-data:#2E7D6B;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(22,68,63,.06);
  --sh-2:0 12px 32px -12px rgba(22,68,63,.18);
  --wrap:1200px;
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Manrope","Noto Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover,a:focus{color:var(--c-accent-hover);}
button{font-family:inherit;font-size:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);letter-spacing:-.01em;}
h1{font-size:52px;font-weight:800;line-height:1.2;}
h2{font-size:34px;font-weight:700;line-height:1.3;}
h3{font-size:22px;font-weight:700;line-height:1.45;}
h4{font-size:18px;font-weight:600;line-height:1.5;}
.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--mint{background:linear-gradient(180deg,rgba(214,232,225,.55),rgba(247,245,240,0));}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px;}
.section-head .eyebrow{display:block;font-family:var(--font-num);font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--c-ink-3);margin-bottom:10px;}
.section-head p{color:var(--c-ink-2);font-size:15px;max-width:560px;margin-top:10px;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-primary);}
.link-more svg{transition:transform .18s ease;}
.link-more:hover svg{transform:translateX(4px);}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1.5px solid transparent;
  cursor:pointer;text-align:center;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 1px 2px rgba(22,68,63,.06);}
.btn-primary:hover,.btn-primary:focus{background:var(--c-accent-hover);color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px -14px rgba(224,123,57,.9);}
.btn-primary:active{transform:translateY(0);box-shadow:0 1px 2px rgba(22,68,63,.06);}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost:hover,.btn-ghost:focus{background:var(--c-mint);color:var(--c-primary);border-color:var(--c-primary);}
.btn-light{background:#fff;color:var(--c-primary);border-color:#fff;}
.btn-light:hover{background:var(--c-mint);color:var(--c-primary);}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}

/* ===== 徽章 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;
  background:var(--c-mint);color:var(--c-primary);
  font-size:12px;font-weight:600;letter-spacing:.06em;line-height:1.6;
}
.badge-accent{background:rgba(224,123,57,.14);color:var(--c-accent-hover);}
.badge-outline{background:transparent;border:1px solid var(--c-line-strong);color:var(--c-ink-2);}

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px -16px rgba(22,68,63,.55);}
.nav-wrap{
  max-width:var(--wrap);margin:0 auto;padding:0 24px;
  height:64px;display:flex;align-items:center;gap:28px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:28px;height:28px;border-radius:9px;background:var(--c-primary);
  position:relative;flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;left:8px;top:8px;width:12px;height:12px;
  border:2px solid var(--c-mint);border-radius:3px;
  border-right-color:transparent;border-bottom-color:transparent;
  transform:rotate(45deg);
}
.brand-text{display:inline-flex;align-items:baseline;gap:6px;line-height:1;}
.brand-text strong{
  font-family:var(--font-num);font-size:21px;font-weight:800;
  letter-spacing:-.02em;color:var(--c-primary);
}
.brand-text span{font-size:14px;font-weight:600;letter-spacing:.04em;color:var(--c-ink-2);}
.nav-main{display:flex;align-items:center;gap:2px;flex:1 1 auto;}
.nav-main a{
  position:relative;display:inline-block;padding:8px 12px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--c-ink-2);
  transition:color .18s ease,background-color .18s ease;
}
.nav-main a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--c-accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-main a:hover,.nav-main a:focus{color:var(--c-primary);background:rgba(214,232,225,.5);}
.nav-main a:hover::after,.nav-main a.is-active::after{transform:scaleX(1);}
.nav-main a.is-active{color:var(--c-primary);font-weight:700;}
.nav-side{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);
  background:#fff;border-radius:10px;cursor:pointer;padding:0;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-primary);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle.is-active span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-active span:nth-child(2){opacity:0;}
.nav-toggle.is-active span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.nav-toggle:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}

.mobile-menu{
  display:none;position:fixed;inset:64px 0 0 0;background:#fff;z-index:79;
  padding:24px;overflow-y:auto;
  transform:translateY(-8px);opacity:0;pointer-events:none;
  transition:opacity .2s ease,transform .2s ease;
}
.mobile-menu.is-open{opacity:1;transform:translateY(0);pointer-events:auto;}
.mobile-menu a.m-link{
  display:block;padding:16px 4px;font-size:17px;font-weight:600;color:var(--c-ink);
  border-bottom:1px solid var(--c-line);
}
.mobile-menu a.m-link.is-active{color:var(--c-primary);}
.mobile-menu .btn{margin-top:24px;min-height:50px;width:100%;}

/* ===== Hero ===== */
.hero{position:relative;padding:72px 0 88px;overflow:hidden;background:var(--c-bg);}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(to right,rgba(22,68,63,.06) 1px,transparent 1px),
                   linear-gradient(to bottom,rgba(22,68,63,.06) 1px,transparent 1px);
  background-size:72px 72px;
  -webkit-mask-image:radial-gradient(ellipse at 60% 40%,#000 20%,transparent 78%);
  mask-image:radial-gradient(ellipse at 60% 40%,#000 20%,transparent 78%);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;}
.hero-copy .badge{margin-bottom:22px;}
.hero h1{font-size:52px;font-weight:800;line-height:1.2;margin-bottom:22px;letter-spacing:-.01em;}
.hero h1 em{font-style:normal;color:var(--c-primary);box-shadow:inset 0 -14px 0 rgba(214,232,225,.75);}
.hero-sub{font-size:17px;line-height:1.85;color:var(--c-ink-2);max-width:520px;margin-bottom:32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px 22px;}
.hero-tags li{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--c-ink-2);}
.hero-tags li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--c-data);flex:0 0 auto;
}
.hero-visual{position:relative;}
.hero-visual .frame{position:relative;}
.hero-visual .frame::before{
  content:"";position:absolute;left:14px;top:14px;right:-14px;bottom:-14px;
  background:var(--c-mint);border-radius:16px;
}
.hero-visual img{
  position:relative;width:100%;aspect-ratio:4/5;object-fit:cover;
  border-radius:16px;filter:saturate(.88) contrast(1.02);
}
.login-card{
  position:absolute;right:-6px;bottom:28px;width:260px;z-index:3;
  background:#fff;border:1px solid var(--c-line);border-radius:16px;
  padding:18px;box-shadow:0 22px 48px -20px rgba(14,47,43,.45);
}
.login-card h4{font-size:14px;font-weight:700;color:var(--c-ink);margin-bottom:12px;letter-spacing:.01em;}
.status-row{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:7px 0;border-top:1px dashed var(--c-line);font-size:13px;color:var(--c-ink-2);}
.status-row:first-of-type{border-top:0;}
.status-row strong{font-weight:600;color:var(--c-ink);}
.dot{display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:6px;vertical-align:1px;}
.dot-ok{background:var(--c-data);}
.dot-warn{background:var(--c-accent);}
.login-card .btn{margin-top:14px;}

/* ===== 痛点区 ===== */
.pain-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.pain-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:28px 24px 24px 28px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;height:100%;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pain-card::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:3px;
  background:var(--c-mint);border-radius:0 3px 3px 0;
}
.pain-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(22,68,63,.3);}
.pain-card h3{font-size:18px;font-weight:600;line-height:1.55;margin-bottom:10px;}
.pain-card p{font-size:14px;line-height:1.75;color:var(--c-ink-2);margin-bottom:20px;}
.pain-card .link-more{margin-top:auto;font-size:14px;}

/* ===== 方案区 ===== */
.plan-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px;}
.plan-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(22,68,63,.3);}
.plan-card .plan-body{padding:28px;}
.plan-num{
  font-family:var(--font-num);font-size:13px;font-weight:700;letter-spacing:.1em;
  color:rgba(22,68,63,.6);display:block;margin-bottom:12px;
}
.plan-card h3{margin-bottom:12px;}
.plan-card p.lead{font-size:15px;color:var(--c-ink-2);margin-bottom:18px;}
.plan-media{position:relative;overflow:hidden;}
.plan-media img{width:100%;aspect-ratio:16/10;object-fit:cover;filter:saturate(.9);transition:transform .4s ease;}
.plan-card:hover .plan-media img{transform:scale(1.02);}
.plan-media::after{
  content:"";position:absolute;inset:0;background:rgba(22,68,63,.08);pointer-events:none;
}
.point-list{margin:0 0 24px;}
.point-list li{
  position:relative;padding-left:26px;font-size:15px;color:var(--c-ink-2);
  line-height:1.75;margin-bottom:10px;
}
.point-list li::before{
  content:"";position:absolute;left:0;top:9px;width:12px;height:12px;
  border:1.5px solid var(--c-primary);border-radius:4px;
}
.point-list li::after{
  content:"";position:absolute;left:3px;top:12px;width:6px;height:3px;
  border-left:1.5px solid var(--c-primary);border-bottom:1.5px solid var(--c-primary);
  transform:rotate(-45deg);
}
.mini-stack{display:grid;grid-template-rows:1fr 1fr;gap:20px;height:100%;}
.mini-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 28px;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(22,68,63,.3);}
.mini-card h3{font-size:20px;margin-bottom:8px;}
.mini-card p{font-size:14px;color:var(--c-ink-2);margin-bottom:18px;}
.mini-card .btn{align-self:flex-start;margin-top:auto;}
.plan-row--wide{grid-template-columns:1fr 1fr;}
.wide-card{
  display:flex;gap:20px;align-items:flex-start;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.wide-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(22,68,63,.3);}
.wide-icon{
  width:52px;height:52px;border-radius:14px;background:var(--c-mint);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.wide-icon svg{width:24px;height:24px;stroke:var(--c-primary);fill:none;stroke-width:1.8;}
.wide-card h3{font-size:19px;margin-bottom:8px;}
.wide-card p{font-size:14px;line-height:1.75;color:var(--c-ink-2);}

/* ===== 数据区 ===== */
.stats{
  position:relative;background:var(--c-primary-deep);color:#F1EFE9;
  padding:88px 0;overflow:hidden;
}
.stats::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(to right,rgba(255,255,255,.055) 1px,transparent 1px),
                   linear-gradient(to bottom,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:80px 80px;pointer-events:none;
}
.stats .container{position:relative;}
.stats h2{color:#F7F5F0;max-width:620px;}
.stats .sub{color:rgba(241,239,233,.72);font-size:15px;margin-top:12px;max-width:600px;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:48px;}
.stat-cell{
  border-left:1px solid rgba(255,255,255,.16);padding-left:22px;
}
.stat-cell .num{
  font-family:var(--font-num);font-size:52px;font-weight:600;line-height:1.1;
  color:#F7F5F0;letter-spacing:-.02em;
}
.stat-cell .num span{font-size:24px;font-weight:600;margin-left:2px;color:var(--c-mint);}
.stat-cell .desc{font-size:14px;color:rgba(241,239,233,.72);margin-top:10px;line-height:1.7;}
.quote-bar{
  display:flex;flex-wrap:wrap;gap:24px;align-items:flex-end;justify-content:space-between;
  margin-top:56px;padding-top:36px;border-top:1px solid rgba(255,255,255,.14);
}
.quote{
  border-left:3px solid var(--c-accent);padding-left:20px;max-width:640px;
  font-size:16px;line-height:1.8;color:rgba(247,245,240,.92);
}
.quote cite{display:block;font-style:normal;font-size:13px;color:rgba(241,239,233,.6);margin-top:10px;}
.trust-chips{display:flex;flex-wrap:wrap;gap:10px;}
.trust-chips span{
  font-size:12px;letter-spacing:.06em;color:var(--c-mint);
  border:1px solid rgba(214,232,225,.35);border-radius:999px;padding:5px 12px;
}

/* ===== 资讯 ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(22,68,63,.3);}
.news-card .badge{align-self:flex-start;margin-bottom:14px;}
.news-card h3{font-size:18px;line-height:1.55;font-weight:600;margin-bottom:10px;}
.news-card h3 a{color:var(--c-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card h3 a:hover{color:var(--c-primary);}
.news-card p{
  font-size:14px;line-height:1.75;color:var(--c-ink-2);margin-bottom:20px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:16px;border-top:1px solid var(--c-line);
}
.news-meta time{font-size:13px;color:var(--c-ink-3);font-family:var(--font-num);}
.news-meta .link-more{font-size:13.5px;}
.empty-state{
  grid-column:1 / -1;display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:56px 24px;border:1px dashed var(--c-line-strong);border-radius:var(--r-card);
  background:rgba(214,232,225,.28);text-align:center;
}
.empty-state p{font-size:15px;color:var(--c-ink-2);}

/* ===== FAQ ===== */
.faq-wrap{max-width:880px;}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item:first-child{border-top:1px solid var(--c-line);}
.faq-question{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 0;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-ink);line-height:1.6;
  transition:color .18s ease;
}
.faq-question:hover{color:var(--c-primary);}
.faq-question:focus-visible{outline:2px solid var(--c-primary);outline-offset:4px;border-radius:6px;}
.faq-icon{position:relative;flex:0 0 auto;width:20px;height:20px;margin-top:3px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;
  transition:transform .22s ease,opacity .22s ease;
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-answer p{font-size:15px;line-height:1.8;color:var(--c-ink-2);padding:0 40px 24px 0;}

/* ===== CTA 带 ===== */
.cta-band{
  background:var(--c-mint);border-radius:24px;padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:30px;max-width:520px;}
.cta-band p{font-size:15px;color:var(--c-ink-2);margin-top:12px;max-width:560px;}
.cta-band .btn{min-height:52px;padding:0 30px;font-size:16px;}
.privacy-line{font-size:12px;color:var(--c-ink-3);margin-top:18px;line-height:1.7;}

/* ===== 页脚 ===== */
.site-footer{background:var(--c-primary-deep);color:#F1EFE9;padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text span{color:rgba(241,239,233,.72);}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(241,239,233,.68);margin-top:18px;max-width:300px;}
.footer-brand .contact{font-size:13.5px;color:rgba(241,239,233,.68);margin-top:18px;line-height:2;}
.footer-brand .contact strong{color:#fff;font-weight:600;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;letter-spacing:.04em;margin-bottom:18px;}
.footer-col a{display:block;font-size:14px;color:rgba(241,239,233,.72);padding:6px 0;transition:color .18s ease;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(214,232,225,.7);
}
.footer-bottom .fb-right{display:flex;flex-wrap:wrap;gap:18px;}

/* ===== 弹层 ===== */
.modal{
  position:fixed;inset:0;z-index:120;display:none;
  align-items:center;justify-content:center;padding:24px;
  background:rgba(14,47,43,.55);
}
.modal.is-open{display:flex;}
.modal-box{
  position:relative;width:100%;max-width:720px;background:#fff;border-radius:20px;
  padding:36px;box-shadow:0 30px 80px -30px rgba(14,47,43,.6);
  max-height:88vh;overflow-y:auto;
}
.modal-box h3{font-size:20px;font-weight:700;margin-bottom:8px;}
.modal-box .modal-sub{font-size:14px;color:var(--c-ink-2);margin-bottom:26px;}
.modal-close{
  position:absolute;right:18px;top:18px;width:36px;height:36px;border-radius:10px;
  border:1px solid var(--c-line);background:#fff;cursor:pointer;font-size:18px;
  line-height:1;color:var(--c-ink-2);display:flex;align-items:center;justify-content:center;
  transition:background-color .16s ease,color .16s ease,border-color .16s ease;
}
.modal-close:hover{background:var(--c-mint);color:var(--c-primary);border-color:var(--c-primary);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;}
.field.full{grid-column:1 / -1;}
.field label{font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:8px;}
.field label .req{color:var(--c-accent);margin-left:2px;}
.field input,.field select,.field textarea{
  height:46px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-input);
  font-size:15px;font-family:inherit;color:var(--c-ink);background:#fff;
  transition:border-color .16s ease,box-shadow .16s ease;
}
.field textarea{height:110px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(214,232,225,.85);
}
.check-row{display:flex;align-items:flex-start;gap:10px;grid-column:1 / -1;}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--c-primary);flex:0 0 auto;}
.check-row label{font-size:13.5px;color:var(--c-ink-2);font-weight:400;line-height:1.7;margin:0;}
.modal-footnote{font-size:12px;color:var(--c-ink-3);line-height:1.7;margin-top:16px;}
.form-success{
  display:none;margin-top:16px;font-size:14px;font-weight:600;color:var(--c-primary);
}
.form-success.is-visible{display:block;}

/* ===== 响应式 ===== */
@media screen and (max-width:1023px){
  h1{font-size:38px;}
  h2{font-size:28px;}
  .nav-main,.nav-side{display:none;}
  .nav-toggle{display:flex;}
  .nav-wrap{gap:12px;justify-content:space-between;}
  .mobile-menu{display:block;}
  .hero{padding:48px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero h1{font-size:38px;}
  .hero-sub{max-width:100%;}
  .hero-visual{max-width:520px;margin:0 auto;width:100%;}
  .login-card{position:relative;right:auto;bottom:auto;width:100%;margin-top:20px;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .pain-grid{grid-template-columns:repeat(2,1fr);}
  .plan-row,.plan-row--wide{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:32px 20px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:36px;}
  .cta-band h2{font-size:24px;}
}
@media screen and (max-width:639px){
  .container{padding:0 20px;}
  .nav-wrap{padding:0 20px;height:56px;}
  .mobile-menu{inset:56px 0 0 0;}
  h1{font-size:32px;}
  .hero h1{font-size:32px;}
  h2{font-size:26px;}
  h3{font-size:20px;}
  .hero{padding:36px 0 52px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{width:100%;}
  .hero-tags{gap:8px 16px;}
  .section{padding:56px 0;}
  .pain-grid{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:1fr;gap:24px;}
  .stat-cell{border-left:0;border-top:1px solid rgba(255,255,255,.16);padding-left:0;padding-top:18px;}
  .stat-cell:first-child{border-top:0;padding-top:0;}
  .stat-cell .num{font-size:44px;}
  .news-grid{grid-template-columns:1fr;}
  .wide-card{flex-direction:column;gap:16px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-band{padding:28px 22px;border-radius:18px;}
  .cta-band .btn{width:100%;}
  .form-grid{grid-template-columns:1fr;}
  .modal{padding:0;}
  .modal-box{
    max-width:100%;height:100%;max-height:100%;border-radius:0;padding:56px 20px 96px;
  }
  .modal-close{position:fixed;right:16px;top:16px;z-index:2;}
  .quote{font-size:15px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#16443F;
  --c-primary-deep:#0E2F2B;
  --c-accent:#E07B39;
  --c-accent-hover:#C4662A;
  --c-mint:#D6E8E1;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-ink:#1A1D1C;
  --c-ink-2:#56605C;
  --c-ink-3:#8A938E;
  --c-line:#E3DFD6;
  --c-line-strong:#CFC9BC;
  --c-data:#2E7D6B;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --r-input:10px;
  --sh-rest:0 1px 2px rgba(22,68,63,.06);
  --sh-hover:0 12px 32px -12px rgba(22,68,63,.18);
  --sp:8px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--c-ink);font-weight:700;}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-accent);}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media screen and (min-width:1440px){
  .container{max-width:1320px;}
}
@media screen and (max-width:640px){
  .container{padding:0 20px;}
}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px -16px rgba(22,68,63,.55);}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:64px;gap:24px;
}
.header-left{display:flex;align-items:center;gap:40px;min-width:0;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:26px;height:26px;border-radius:7px;
  background:var(--c-primary);
  position:relative;flex-shrink:0;
}
.brand-mark::after{
  content:"";position:absolute;left:6px;top:6px;
  width:14px;height:14px;border-radius:4px;
  background:var(--c-mint);
  box-shadow:4px 4px 0 -1px rgba(224,123,57,.9);
}
.brand-text{display:inline-flex;align-items:baseline;gap:5px;line-height:1;}
.brand-text strong{
  font-family:"Manrope","Noto Sans SC",sans-serif;
  font-size:21px;font-weight:800;letter-spacing:-.01em;color:var(--c-primary);
}
.brand-text span{
  font-size:15px;font-weight:500;letter-spacing:.04em;color:var(--c-ink);
}
.nav-main{display:flex;align-items:center;gap:30px;}
.nav-main a{
  position:relative;font-size:14.5px;font-weight:500;color:var(--c-ink-2);
  padding:6px 0;white-space:nowrap;
}
.nav-main a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--c-primary);transition:width .22s ease;
}
.nav-main a:hover{color:var(--c-primary);}
.nav-main a:hover::after{width:100%;}
.nav-main a.is-active{color:var(--c-primary);font-weight:700;}
.nav-main a.is-active::after{width:100%;}
.header-right{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  border:1px solid var(--c-line);background:var(--c-surface);
  color:var(--c-ink-2);display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;transition:all .18s ease;
}
.icon-btn:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-mint);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1.5px solid transparent;text-align:center;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--c-accent);color:#fff;border-color:var(--c-accent);}
.btn-primary:hover{
  background:var(--c-accent-hover);border-color:var(--c-accent-hover);
  color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px -12px rgba(196,102,42,.75);
}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-mint);color:var(--c-primary);transform:translateY(-1px);}
.btn-on-dark{
  background:var(--c-accent);color:#fff;border-color:var(--c-accent);
}
.btn-on-dark:hover{background:#fff;color:var(--c-primary-deep);border-color:#fff;transform:translateY(-1px);}
.btn-outline-light{background:transparent;color:#F7F5F0;border-color:rgba(247,245,240,.55);}
.btn-outline-light:hover{background:rgba(247,245,240,.14);color:#fff;border-color:#fff;}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-lg{min-height:50px;padding:0 28px;font-size:16px;}
.btn-block{width:100%;}

.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--c-line);background:var(--c-surface);
  color:var(--c-primary);font-size:17px;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{background:var(--c-mint);}

.mobile-panel{
  display:none;position:fixed;left:0;right:0;top:56px;bottom:0;
  background:var(--c-surface);z-index:75;
  padding:24px 20px 32px;overflow-y:auto;
  border-top:1px solid var(--c-line);
}
.mobile-panel.is-open{display:block;}
.mobile-panel nav{display:flex;flex-direction:column;gap:4px;margin-bottom:24px;}
.mobile-panel nav a{
  display:block;padding:14px 4px;font-size:16px;font-weight:500;
  color:var(--c-ink);border-bottom:1px solid var(--c-line);
}
.mobile-panel nav a.is-active{color:var(--c-primary);font-weight:700;}
.mobile-panel .btn{min-height:48px;}

@media screen and (max-width:1023px){
  .header-left{gap:20px;}
  .nav-main{display:none;}
  .header-right .icon-btn{display:none;}
  .header-right .btn-primary{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:56px;}
  .brand-mark{width:24px;height:24px;}
  .brand-text strong{font-size:19px;}
  .brand-text span{font-size:13.5px;}
}

/* ============ 页头（反色） ============ */
.page-hero{
  position:relative;
  background:var(--c-primary-deep);
  color:#F2F0EA;
  padding:56px 0 56px;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    repeating-linear-gradient(0deg,rgba(214,232,225,.06) 0 1px,transparent 1px 48px),
    repeating-linear-gradient(90deg,rgba(214,232,225,.06) 0 1px,transparent 1px 48px);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}
.crumbs{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:rgba(242,240,234,.68);margin-bottom:24px;
}
.crumbs a{color:rgba(242,240,234,.8);}
.crumbs a:hover{color:#fff;}
.crumbs span.sep{color:rgba(242,240,234,.4);}
.crumbs span.current{color:rgba(242,240,234,.55);}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border-radius:999px;
  background:rgba(214,232,225,.16);
  color:var(--c-mint);
  font-size:12px;letter-spacing:.06em;font-weight:500;
  margin-bottom:20px;
}
.page-hero h1{
  font-size:52px;line-height:1.2;font-weight:800;letter-spacing:-.01em;
  color:#F7F5F0;margin-bottom:20px;
}
.page-hero h1 em{
  font-style:normal;color:#F0B98C;
  box-shadow:inset 0 -.28em 0 rgba(224,123,57,.28);
}
.hero-lead{
  font-size:17px;line-height:1.85;color:rgba(242,240,234,.82);
  max-width:520px;margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-media{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  border:1px solid rgba(214,232,225,.2);
}
.hero-media img{
  width:100%;aspect-ratio:21/9;object-fit:cover;border-radius:0;
  filter:saturate(.86);
}
.hero-media::after{
  content:"";position:absolute;inset:0;background:rgba(22,68,63,.12);
  pointer-events:none;
}
.hero-media figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:10px 14px;font-size:12.5px;color:rgba(255,255,255,.86);
  background:linear-gradient(to top,rgba(14,47,43,.75),rgba(14,47,43,0));
  letter-spacing:.02em;
}
@media screen and (max-width:1023px){
  .page-hero{padding:40px 0 48px;}
  .page-hero h1{font-size:38px;}
  .hero-lead{font-size:16px;max-width:none;}
  .hero-media{margin-top:32px;}
  .hero-media img{aspect-ratio:16/9;}
}
@media screen and (max-width:640px){
  .page-hero{padding:32px 0 40px;}
  .page-hero h1{font-size:32px;}
  .hero-actions .btn{width:100%;}
}

/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-alt{background:var(--c-surface);}
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:"Manrope",sans-serif;
  font-size:12px;font-weight:700;letter-spacing:.14em;
  color:var(--c-data);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);display:inline-block;}
.section-head h2{
  font-size:34px;line-height:1.3;font-weight:700;letter-spacing:-.01em;
  margin-bottom:16px;
}
.section-head p{color:var(--c-ink-2);font-size:16.5px;line-height:1.85;}
@media screen and (max-width:1023px){
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .section-head h2{font-size:28px;}
}
@media screen and (max-width:640px){
  .section{padding:56px 0;}
  .section-head{margin-bottom:28px;}
  .section-head h2{font-size:26px;}
}

/* ============ 简介两栏 ============ */
.intro-grid{row-gap:40px;}
.intro-copy h2{
  font-size:34px;line-height:1.3;margin-bottom:18px;letter-spacing:-.01em;
}
.intro-copy p{color:var(--c-ink-2);font-size:16.5px;}
.intro-note{
  margin-top:24px;padding:18px 20px;border-left:3px solid var(--c-accent);
  background:rgba(214,232,225,.38);border-radius:0 var(--r-img) var(--r-img) 0;
  font-size:15px;color:var(--c-ink-2);
}
.checklist{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-rest);
}
.checklist h3{font-size:18px;margin-bottom:18px;}
.checklist li{
  display:flex;gap:12px;padding:14px 0;
  border-bottom:1px dashed var(--c-line);font-size:15px;color:var(--c-ink-2);
}
.checklist li:last-child{border-bottom:none;padding-bottom:0;}
.checklist li:first-of-type{padding-top:0;}
.checklist .tick{
  flex-shrink:0;width:22px;height:22px;border-radius:50%;
  background:var(--c-mint);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:11px;margin-top:3px;
}
.checklist strong{color:var(--c-ink);font-weight:700;display:block;margin-bottom:2px;}
@media screen and (max-width:640px){
  .intro-copy h2{font-size:26px;}
  .checklist{padding:20px;}
}

/* ============ 五步流程 ============ */
.steps{
  display:grid;grid-template-columns:repeat(5,1fr);gap:20px;
  position:relative;margin-top:8px;
}
.steps::before{
  content:"";position:absolute;left:6%;right:6%;top:21px;height:1px;
  background:var(--c-line-strong);z-index:0;
}
.step{
  position:relative;z-index:1;padding-top:0;
}
.step-dot{
  width:42px;height:42px;border-radius:50%;
  background:var(--c-surface);border:1.5px solid var(--c-primary);
  color:var(--c-primary);font-family:"Manrope",sans-serif;
  font-size:14px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;
}
.step:first-child .step-dot{background:var(--c-primary);color:#fff;}
.step h3{font-size:17px;line-height:1.5;margin-bottom:8px;}
.step p{font-size:14px;line-height:1.7;color:var(--c-ink-2);margin:0;}
.step .judge{
  display:block;margin-top:10px;font-size:13px;color:var(--c-data);
  background:rgba(46,125,107,.08);border-radius:8px;padding:6px 10px;line-height:1.6;
}
@media screen and (max-width:1023px){
  .steps{grid-template-columns:repeat(2,1fr);gap:28px;}
  .steps::before{display:none;}
  .step{padding-left:0;}
}
@media screen and (max-width:640px){
  .steps{grid-template-columns:1fr;}
}

/* ============ 深色数据条 ============ */
.stat-band{
  background:var(--c-primary-deep);color:#F2F0EA;
  padding:72px 0;position:relative;overflow:hidden;
}
.stat-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(90deg,rgba(214,232,225,.05) 0 1px,transparent 1px 64px);
  pointer-events:none;
}
.stat-band .container{position:relative;z-index:1;}
.stat-band h2{
  color:#F7F5F0;font-size:28px;line-height:1.35;margin-bottom:10px;
}
.stat-band .band-lead{color:rgba(242,240,234,.7);font-size:15.5px;max-width:640px;margin-bottom:40px;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat{padding:22px 20px;border:1px solid rgba(214,232,225,.18);border-radius:var(--r-card);background:rgba(214,232,225,.04);}
.stat .num{
  font-family:"Manrope",sans-serif;font-size:46px;font-weight:600;line-height:1.1;
  color:#F7F5F0;display:block;margin-bottom:8px;
}
.stat .num small{font-size:16px;font-weight:600;color:var(--c-mint);margin-left:4px;}
.stat span.desc{font-size:13.5px;color:rgba(242,240,234,.72);line-height:1.7;display:block;}
.quote-line{
  margin-top:36px;display:flex;align-items:flex-start;gap:16px;
  border-left:3px solid var(--c-accent);padding-left:20px;
  color:rgba(242,240,234,.86);font-size:15px;line-height:1.8;max-width:820px;
}
.quote-line i{color:var(--c-accent);font-size:13px;margin-top:6px;}
@media screen and (max-width:1023px){
  .stat-band{padding:56px 0;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .stat .num{font-size:38px;}
}
@media screen and (max-width:640px){
  .stat-grid{grid-template-columns:1fr;}
}

/* ============ 入口识别对照 ============ */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-rest);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.compare-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:rgba(22,68,63,.3);}
.compare-card h3{font-size:19px;margin-bottom:6px;display:flex;align-items:center;gap:10px;}
.compare-card .sub{font-size:13.5px;color:var(--c-ink-3);margin-bottom:20px;}
.dot-ok{width:9px;height:9px;border-radius:50%;background:var(--c-primary);display:inline-block;}
.dot-warn{width:9px;height:9px;border-radius:50%;background:var(--c-accent);display:inline-block;}
.compare-card ul li{
  display:flex;gap:12px;padding:12px 0;font-size:15px;color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line);line-height:1.75;
}
.compare-card ul li:last-child{border-bottom:none;padding-bottom:0;}
.compare-card ul li i{font-size:12px;margin-top:7px;flex-shrink:0;}
.compare-card.ok ul li i{color:var(--c-primary);}
.compare-card.warn ul li i{color:var(--c-accent);}
@media screen and (max-width:768px){
  .compare-grid{grid-template-columns:1fr;}
  .compare-card{padding:22px;}
}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
.faq-wrap ul.accordion{
  background:transparent;border:none;margin:0;
}
.faq-wrap .accordion-item{
  background:transparent;border:none;border-bottom:1px solid var(--c-line);
}
.faq-wrap .accordion-item:first-child{border-top:1px solid var(--c-line);}
.faq-wrap .accordion-title{
  border:none;background:transparent;
  padding:22px 44px 22px 0;
  font-size:16px;font-weight:600;color:var(--c-ink);line-height:1.6;
  transition:color .18s ease;
}
.faq-wrap .accordion-title:hover,
.faq-wrap .accordion-title:focus{background:transparent;color:var(--c-primary);}
.faq-wrap .accordion-title::before{
  content:"+";position:absolute;right:8px;top:50%;transform:translateY(-50%);
  width:22px;height:22px;line-height:20px;text-align:center;
  border-radius:50%;background:var(--c-mint);color:var(--c-primary);
  font-size:16px;font-weight:600;margin:0;
}
.faq-wrap .accordion-item.is-active .accordion-title::before{content:"−";}
.faq-wrap .accordion-item.is-active .accordion-title{color:var(--c-primary);}
.faq-wrap .accordion-content{
  border:none;background:transparent;padding:0 44px 22px 0;
  color:var(--c-ink-2);font-size:15px;line-height:1.8;
}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--c-mint);
  border-radius:20px;
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  border:1px solid rgba(22,68,63,.1);
}
.cta-band h2{font-size:28px;line-height:1.35;margin-bottom:10px;color:var(--c-primary-deep);}
.cta-band p{font-size:15.5px;color:var(--c-ink-2);margin:0;max-width:560px;}
.cta-band .cta-actions{flex-shrink:0;display:flex;flex-direction:column;gap:10px;align-items:flex-end;}
.cta-band .hint{font-size:12.5px;color:var(--c-ink-3);}
@media screen and (max-width:1023px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 28px;}
  .cta-band .cta-actions{align-items:flex-start;width:100%;}
  .cta-band .cta-actions .btn{width:100%;}
  .cta-band h2{font-size:24px;}
}

/* ============ 面包屑底部说明 ============ */
.fine-print{
  font-size:13px;color:var(--c-ink-3);line-height:1.75;
  border-top:1px solid var(--c-line);padding-top:24px;margin-top:48px;
}

/* ============ 表单弹层 ============ */
.reveal-overlay{background:rgba(14,47,43,.55);}
.reveal.modal-form{
  border:none;border-radius:20px;padding:0;background:var(--c-surface);
  box-shadow:0 32px 80px -24px rgba(14,47,43,.45);
  max-width:720px;width:calc(100% - 40px);
}
.modal-head{
  padding:26px 30px 20px;border-bottom:1px solid var(--c-line);
  display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
}
.modal-head h3{font-size:20px;font-weight:700;margin-bottom:6px;}
.modal-head p{font-size:13.5px;color:var(--c-ink-3);margin:0;}
.modal-close{
  border:none;background:transparent;color:var(--c-ink-3);
  font-size:20px;line-height:1;padding:4px;border-radius:8px;
  transition:color .18s ease,background .18s ease;
}
.modal-close:hover{color:var(--c-primary);background:var(--c-mint);}
.modal-body{padding:26px 30px 10px;}
.field{margin-bottom:18px;}
.field label{
  display:block;font-size:14px;font-weight:600;color:var(--c-ink);
  margin-bottom:7px;
}
.field label .req{color:var(--c-accent);margin-left:2px;}
.field input[type="text"],
.field input[type="tel"],
.field input[type="email"],
.field select,
.field textarea{
  width:100%;height:46px;padding:0 14px;
  border:1px solid var(--c-line);border-radius:var(--r-input);
  background:var(--c-surface);color:var(--c-ink);font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease;
  margin:0;
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--c-ink-3) 50%),linear-gradient(135deg,var(--c-ink-3) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(214,232,225,.85);
}
.field .err-msg{display:block;font-size:12px;color:#C0492A;margin-top:6px;min-height:0;}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--c-ink-2);line-height:1.7;}
.consent input{margin-top:4px;flex-shrink:0;width:16px;height:16px;accent-color:var(--c-primary);}
.modal-foot{
  padding:0 30px 26px;
}
.modal-privacy{
  font-size:12px;color:var(--c-ink-3);line-height:1.7;
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--c-line);
}
.modal-success{
  display:none;padding:14px 30px 24px;color:var(--c-primary);
  font-size:14px;font-weight:600;
}
.modal-success.is-visible{display:block;}
@media screen and (max-width:640px){
  .reveal.modal-form{
    width:100%;max-width:none;height:100%;max-height:none;
    border-radius:0;top:0;left:0;transform:none;margin:0;
    overflow-y:auto;
  }
  .modal-head{padding:20px 20px 16px;}
  .modal-body{padding:20px 20px 10px;}
  .modal-foot{padding:0 20px 72px;}
  .modal-success{padding:14px 20px 72px;}
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-primary-deep);color:rgba(242,240,234,.8);
  padding:64px 0 0;margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-text strong{color:#F7F5F0;}
.footer-brand .brand-text span{color:rgba(242,240,234,.86);}
.footer-brand .brand-mark{background:rgba(214,232,225,.9);}
.footer-brand .brand-mark::after{background:var(--c-primary);box-shadow:4px 4px 0 -1px var(--c-accent);}
.footer-brand p{
  font-size:14px;line-height:1.8;color:rgba(242,240,234,.7);max-width:340px;
  margin-bottom:18px;
}
.footer-brand .contact{font-size:13.5px;color:rgba(242,240,234,.62);line-height:1.9;}
.footer-brand .contact strong{color:var(--c-mint);font-weight:600;}
.footer-col h4{
  font-size:14px;font-weight:700;color:#F7F5F0;margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col a{
  display:block;font-size:13.8px;color:rgba(242,240,234,.7);
  padding:6px 0;transition:color .18s ease,padding-left .18s ease;
}
.footer-col a:hover{color:var(--c-mint);padding-left:3px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:rgba(214,232,225,.7);flex-wrap:wrap;
}
.footer-bottom .fb-right{display:flex;gap:20px;flex-wrap:wrap;}
@media screen and (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
}
@media screen and (max-width:640px){
  .site-footer{padding:48px 0 0;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}

/* roulang page: article */
:root{
  --c-primary:#16443F;
  --c-primary-deep:#0E2F2B;
  --c-primary-soft:rgba(22,68,63,.08);
  --c-accent:#E07B39;
  --c-accent-hover:#C4662A;
  --c-mint:#D6E8E1;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-ink:#1A1D1C;
  --c-ink-2:#56605C;
  --c-ink-3:#8A938E;
  --c-line:#E3DFD6;
  --c-line-strong:#CFC9BC;
  --c-data:#2E7D6B;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(22,68,63,.06);
  --sh-2:0 12px 32px -12px rgba(22,68,63,.18);
  --container:1200px;
  --gutter:24px;
  --ease:180ms ease;
  --hdr:64px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border:0;}
a{color:var(--c-primary);text-decoration:none;background:transparent;transition:color var(--ease);}
a:hover{color:var(--c-primary);}
button{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding-left:1.25em;}
::selection{background:var(--c-mint);color:var(--c-primary-deep);}
body.no-scroll{overflow:hidden;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--gutter);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 8px 24px -16px rgba(14,47,43,.45);}
.header-inner{display:flex;align-items:center;gap:26px;height:var(--hdr);}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-ink);}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:28px;height:28px;border-radius:9px;background:var(--c-primary);
  position:relative;flex:0 0 auto;display:inline-block;
}
.brand-mark::after{
  content:"";position:absolute;right:6px;top:6px;width:9px;height:9px;
  border-radius:3px;background:var(--c-accent);
}
.brand-text{display:inline-flex;align-items:baseline;gap:5px;line-height:1;}
.brand-text strong{font-size:19px;font-weight:800;letter-spacing:-.01em;}
.brand-text span{font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--c-ink-2);}
.nav-main{display:flex;align-items:center;gap:2px;flex:1 1 auto;min-width:0;}
.nav-main a{
  position:relative;display:inline-block;padding:9px 12px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--c-ink-2);white-space:nowrap;
  transition:color var(--ease),background var(--ease);
}
.nav-main a:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.nav-main a:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.nav-main a.is-active{color:var(--c-primary);font-weight:700;}
.nav-main a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
  border-radius:2px;background:var(--c-accent);
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto;}
.icon-btn{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--c-line);
  background:var(--c-surface);color:var(--c-ink-2);display:inline-flex;
  align-items:center;justify-content:center;cursor:pointer;
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.icon-btn:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-mint);}
.icon-btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);
  background:var(--c-surface);color:var(--c-primary);align-items:center;justify-content:center;
  cursor:pointer;font-size:16px;
}
.nav-toggle:hover{background:var(--c-mint);}
.nav-toggle:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}

.mobile-panel{
  position:fixed;left:0;right:0;top:var(--hdr);bottom:0;z-index:70;
  background:var(--c-surface);padding:18px var(--gutter) 40px;
  display:none;flex-direction:column;gap:2px;overflow-y:auto;
}
.mobile-panel.is-open{display:flex;}
.mobile-panel a{
  padding:15px 6px;font-size:16px;font-weight:600;color:var(--c-ink);
  border-bottom:1px solid var(--c-line);
}
.mobile-panel a:hover{color:var(--c-primary);}
.mobile-panel .btn{margin-top:20px;border-bottom:0;color:#fff;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1.5px solid transparent;
  cursor:pointer;text-align:center;
  transition:transform var(--ease),background var(--ease),color var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 1px 2px rgba(22,68,63,.08);}
.btn-primary:hover{background:var(--c-accent-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:0 1px 2px rgba(22,68,63,.08);}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-mint);color:var(--c-primary);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}

/* ============ 徽章 / 面包屑 ============ */
.badge{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;
  background:var(--c-mint);color:var(--c-primary);
  font-size:12px;font-weight:600;letter-spacing:.06em;line-height:1.6;
}
.badge-soft{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;
  background:transparent;border:1px solid var(--c-line-strong);color:var(--c-ink-3);
  font-size:12px;font-weight:600;letter-spacing:.06em;line-height:1.6;
}

.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:7px;
  font-size:13px;color:var(--c-ink-3);padding:26px 0 0;
}
.breadcrumb a{color:var(--c-ink-2);}
.breadcrumb a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:var(--c-line-strong);}
.breadcrumb .current{color:var(--c-ink-3);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ 文章头 ============ */
.article-head{padding:22px 0 28px;border-bottom:1px solid var(--c-line);margin-bottom:36px;}
.article-kicker{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:16px;}
.article-head h1{
  font-size:clamp(28px,3.5vw,44px);
  line-height:1.26;font-weight:800;letter-spacing:-.01em;color:var(--c-ink);
  word-break:break-word;
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:9px;
  margin-top:18px;font-size:13px;color:var(--c-ink-3);
}
.article-meta .dot{color:var(--c-line-strong);}

/* ============ 版式 ============ */
.article-grid{
  display:grid;grid-template-columns:minmax(0,1fr) 340px;
  gap:52px;align-items:start;padding-bottom:24px;
}
.article-main{min-width:0;}
.article-cover{
  margin:0 0 30px;border-radius:var(--r-img);overflow:hidden;
  background:var(--c-mint);
}
.article-cover img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  filter:saturate(.86);
}
.article-cover img::after{content:"";}

/* ============ 正文排版 ============ */
.article-body{
  font-size:16px;line-height:1.85;color:var(--c-ink);word-break:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 18px;}
.article-body h2{
  position:relative;font-size:26px;font-weight:700;line-height:1.38;
  margin:44px 0 16px;padding-left:15px;scroll-margin-top:90px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:3px;
  border-radius:2px;background:var(--c-accent);
}
.article-body h3{
  font-size:20px;font-weight:700;line-height:1.45;margin:32px 0 12px;
  color:var(--c-primary-deep);scroll-margin-top:90px;
}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:1.3em;}
.article-body li{margin-bottom:8px;}
.article-body li::marker{color:var(--c-primary);}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.article-body a:hover{color:var(--c-accent-hover);}
.article-body strong{font-weight:700;color:var(--c-primary-deep);}
.article-body blockquote{
  margin:26px 0;padding:16px 22px;background:var(--c-mint);
  border-left:3px solid var(--c-primary);border-radius:0 12px 12px 0;
  color:var(--c-primary-deep);font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:26px auto;}
.article-body figure{margin:26px 0;}
.article-body figcaption{
  margin-top:10px;text-align:center;font-size:13px;color:var(--c-ink-3);
}
.article-body table{
  width:100%;border-collapse:collapse;font-size:15px;margin:22px 0;
  border:1px solid var(--c-line);border-radius:12px;overflow:hidden;
}
.article-body th,.article-body td{
  border-bottom:1px solid var(--c-line);padding:11px 13px;text-align:left;vertical-align:top;
}
.article-body th{background:rgba(214,232,225,.55);font-weight:600;color:var(--c-primary-deep);}
.article-body tr:last-child td{border-bottom:0;}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:36px 0;}

.lead-box{
  background:var(--c-mint);border-left:3px solid var(--c-primary);
  border-radius:0 12px 12px 0;padding:18px 22px;margin-bottom:28px;
  font-size:17px;line-height:1.8;color:var(--c-primary-deep);
}

/* ============ 文末声明 ============ */
.article-note{
  margin-top:40px;padding:16px 18px;border:1px dashed var(--c-line-strong);
  border-radius:var(--r-img);font-size:13px;line-height:1.8;color:var(--c-ink-3);
  background:rgba(214,232,225,.16);
}
.article-note strong{color:var(--c-ink-2);font-weight:600;}

/* ============ 相关推荐 ============ */
.related{margin-top:44px;padding-top:32px;border-top:1px solid var(--c-line);}
.related h2{font-size:20px;font-weight:700;margin-bottom:18px;}
.related-empty{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  flex-wrap:wrap;padding:20px 22px;border-radius:var(--r-card);
  background:rgba(214,232,225,.28);border:1px dashed var(--c-line-strong);
}
.related-empty p{font-size:14px;color:var(--c-ink-2);margin:0;}

/* ============ 侧栏 ============ */
.side{
  position:sticky;top:calc(var(--hdr) + 20px);
  display:flex;flex-direction:column;gap:20px;
}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);
}
.side-card h2{font-size:16px;font-weight:700;margin-bottom:14px;color:var(--c-ink);}
.toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;max-height:326px;overflow:auto;}
.toc-list a{
  display:block;padding:7px 10px;border-radius:8px;font-size:14px;line-height:1.55;
  color:var(--c-ink-2);border-left:2px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.toc-list a:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.toc-list a.is-current{
  color:var(--c-primary);font-weight:600;
  background:var(--c-primary-soft);border-left-color:var(--c-accent);
}
.toc-list a.lv3{padding-left:22px;font-size:13px;}
.toc-empty{font-size:13px;color:var(--c-ink-3);margin:0;}

.consult-img{
  width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:var(--r-img);
  margin-bottom:16px;filter:saturate(.88);
}
.consult-card h2{margin-bottom:10px;}
.consult-card p{font-size:14px;line-height:1.75;color:var(--c-ink-2);margin-bottom:18px;}
.consult-note{display:block;margin-top:12px;font-size:12px;color:var(--c-ink-3);text-align:center;}

/* ============ 空态 ============ */
.empty-state{
  text-align:center;padding:64px 24px;background:var(--c-surface);
  border:1px dashed var(--c-line-strong);border-radius:var(--r-card);
}
.empty-state i{font-size:34px;color:var(--c-primary);opacity:.6;margin-bottom:16px;display:block;}
.empty-state h2{font-size:22px;font-weight:700;margin-bottom:10px;}
.empty-state p{font-size:15px;color:var(--c-ink-2);margin-bottom:22px;}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;margin-top:72px;padding:56px 0;overflow:hidden;
  background:var(--c-primary-deep);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
  filter:saturate(.6);opacity:.22;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(14,47,43,.92) 0%,rgba(14,47,43,.72) 60%,rgba(14,47,43,.55) 100%);
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-inner h2{
  font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.4;color:#fff;
  margin-bottom:10px;max-width:640px;
}
.cta-inner p{font-size:15px;color:rgba(214,232,225,.82);margin:0;max-width:620px;}
.cta-inner .btn{flex:0 0 auto;}

/* ============ 弹层表单 ============ */
.modal{
  position:fixed;inset:0;z-index:120;display:none;
  background:rgba(14,47,43,.55);
  padding:32px 16px;overflow-y:auto;
}
.modal.is-open{display:block;}
.modal-dialog{
  position:relative;max-width:720px;margin:0 auto;background:var(--c-surface);
  border-radius:20px;padding:32px;box-shadow:0 24px 60px -24px rgba(14,47,43,.5);
  animation:modalIn 200ms ease;
}
@keyframes modalIn{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:translateY(0);}}
.modal-close{
  position:absolute;right:16px;top:16px;width:34px;height:34px;border-radius:10px;
  border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink-2);
  cursor:pointer;display:inline-flex;align-items:center;justify-content:center;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.modal-close:hover{background:var(--c-mint);color:var(--c-primary);border-color:var(--c-primary);}
.modal-dialog h2{font-size:20px;font-weight:700;margin-bottom:8px;padding-right:40px;}
.modal-dialog .modal-sub{font-size:14px;color:var(--c-ink-2);margin-bottom:22px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field.full{grid-column:1/-1;}
.field label{font-size:14px;font-weight:600;color:var(--c-ink);}
.field label .req{color:var(--c-accent);margin-left:3px;}
.field input,.field select,.field textarea{
  width:100%;font-family:inherit;font-size:15px;color:var(--c-ink);
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-input);
  padding:0 13px;height:46px;line-height:44px;transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{height:104px;padding:11px 13px;line-height:1.7;resize:vertical;}
.field select{appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2356605C' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 13px center;padding-right:36px;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 2px var(--c-mint);
}
.check-row{display:flex;align-items:flex-start;gap:9px;font-size:13px;color:var(--c-ink-2);line-height:1.7;}
.check-row input{width:16px;height:16px;margin-top:4px;flex:0 0 auto;accent-color:var(--c-primary);}
.form-foot{margin-top:20px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.form-privacy{font-size:12px;line-height:1.7;color:var(--c-ink-3);margin-top:14px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-primary-deep);color:var(--c-mint);padding-top:64px;}
.footer-grid{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{color:#fff;}
.footer-brand .brand:hover{color:#fff;}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text span{color:rgba(214,232,225,.8);}
.footer-brand .brand-mark{background:var(--c-mint);}
.footer-brand .brand-mark::after{background:var(--c-accent);}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(214,232,225,.75);margin:16px 0 14px;max-width:330px;}
.contact{font-size:13px;line-height:1.95;color:rgba(214,232,225,.75);}
.contact strong{color:var(--c-mint);font-weight:600;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.02em;}
.footer-col a{
  display:block;font-size:14px;color:rgba(214,232,225,.75);padding:5px 0;
  transition:color var(--ease),padding-left var(--ease);
}
.footer-col a:hover{color:#fff;padding-left:3px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:18px 0 22px;display:flex;align-items:center;justify-content:space-between;
  gap:14px;flex-wrap:wrap;font-size:13px;color:rgba(214,232,225,.7);
}
.fb-right{display:flex;gap:18px;flex-wrap:wrap;}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  :root{--hdr:56px;--gutter:20px;}
  .header-inner{gap:14px;}
  .nav-main{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-cta{display:none;}
  .article-grid{grid-template-columns:1fr;gap:36px;}
  .side{position:static;top:auto;flex-direction:column;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:44px 0;margin-top:56px;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:22px;}
}
@media (max-width:639px){
  .brand-text strong{font-size:17px;}
  .brand-text span{font-size:12px;}
  .breadcrumb{font-size:12px;padding-top:18px;}
  .article-head{padding:16px 0 22px;margin-bottom:26px;}
  .article-head h1{font-size:26px;line-height:1.32;}
  .article-meta{font-size:12px;gap:7px;}
  .article-body{font-size:15.5px;line-height:1.85;}
  .article-body h2{font-size:21px;margin:34px 0 12px;}
  .article-body h3{font-size:18px;}
  .lead-box{font-size:15.5px;padding:15px 16px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .modal{padding:0;}
  .modal-dialog{border-radius:0;min-height:100%;padding:22px 18px 40px;}
  .form-grid{grid-template-columns:1fr;}
  .modal-close{position:fixed;right:14px;top:14px;z-index:130;}
  .related-empty{flex-direction:column;align-items:flex-start;}
  .cta-inner h2{font-size:21px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --c-primary:#16443F;
  --c-primary-deep:#0E2F2B;
  --c-accent:#E07B39;
  --c-accent-h:#C4662A;
  --c-mint:#D6E8E1;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-ink:#1A1D1C;
  --c-ink-2:#56605C;
  --c-ink-3:#8A938E;
  --c-line:#E3DFD6;
  --c-line-2:#CFC9BC;
  --c-data:#2E7D6B;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(22,68,63,.06);
  --sh-2:0 12px 32px -12px rgba(22,68,63,.18);
  --sh-3:0 8px 24px -16px rgba(22,68,63,.35);
  --sp:8px;
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-accent-h);}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-family:"Noto Sans SC","PingFang SC",sans-serif;}
h1{font-size:52px;font-weight:800;line-height:1.2;letter-spacing:-.01em;}
h2{font-size:34px;font-weight:700;line-height:1.3;}
h3{font-size:22px;font-weight:700;line-height:1.4;}
h4{font-size:18px;font-weight:600;line-height:1.5;}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.06em;font-weight:700;
  color:var(--c-primary);
  background:var(--c-mint);
  border-radius:999px;
  padding:4px 12px;
  margin-bottom:20px;
}
.section-head{max-width:760px;margin-bottom:32px;}
.section-head p{color:var(--c-ink-2);font-size:16px;margin-top:14px;margin-bottom:0;}
.lead{font-size:17px;line-height:1.8;color:var(--c-ink-2);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;
  padding:12px 24px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:700;
  border:1.5px solid transparent;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 1px 2px rgba(22,68,63,.06);}
.btn-primary:hover{background:var(--c-accent-h);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-mint);color:var(--c-primary);}
.btn-ghost:active{transform:translateY(0);}
.btn-light{background:var(--c-surface);color:var(--c-primary);border-color:var(--c-line);}
.btn-light:hover{border-color:var(--c-primary);color:var(--c-primary);background:#fff;}
.btn-sm{min-height:40px;padding:8px 18px;font-size:14px;}
.btn-block{width:100%;}
.btn i{font-size:14px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-3);}
.header-inner{
  display:flex;align-items:center;gap:32px;
  min-height:64px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:26px;height:26px;border-radius:8px;
  background:linear-gradient(150deg,var(--c-primary) 0%,var(--c-primary) 52%,var(--c-accent) 52%,var(--c-accent) 100%);
  position:relative;
  flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;inset:7px;border-radius:3px;background:#fff;opacity:.92;
}
.brand-text{display:inline-flex;align-items:baseline;gap:6px;line-height:1;white-space:nowrap;}
.brand-text strong{
  font-family:"Manrope","Noto Sans SC",sans-serif;
  font-size:20px;font-weight:700;letter-spacing:-.01em;color:var(--c-primary);
}
.brand-text span{
  font-size:14px;font-weight:600;letter-spacing:.04em;color:var(--c-ink);opacity:.85;
}
.nav-main{
  display:flex;align-items:center;gap:2px;
  flex:1 1 auto;
  min-width:0;
}
.nav-main a{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:15px;font-weight:600;
  color:var(--c-ink-2);
  border-radius:8px;
  white-space:nowrap;
}
.nav-main a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--c-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left center;
  transition:transform .2s ease;
}
.nav-main a:hover{color:var(--c-primary);}
.nav-main a:hover::after{transform:scaleX(1);}
.nav-main a.is-active{color:var(--c-primary);}
.nav-main a.is-active::after{transform:scaleX(1);background:var(--c-accent);}
.header-right{display:flex;align-items:center;gap:12px;flex:0 0 auto;margin-left:auto;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;
  background:transparent;border:1px solid var(--c-line);
  color:var(--c-ink-2);font-size:15px;
  display:inline-flex;align-items:center;justify-content:center;
  transition:all .18s ease;
}
.icon-btn:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-mint);}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:10px;
  border:1px solid var(--c-line);background:#fff;
  color:var(--c-primary);font-size:18px;
  align-items:center;justify-content:center;
}
.mobile-panel{
  display:none;
  border-top:1px solid var(--c-line);
  background:#fff;
  padding:16px 20px 24px;
}
.mobile-panel.is-open{display:block;}
.mobile-panel a{
  display:block;
  padding:14px 4px;
  font-size:16px;font-weight:600;
  color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line);
}
.mobile-panel a.is-active{color:var(--c-primary);}
.mobile-panel .btn{margin-top:18px;}

/* ---------- Hero 分屏 ---------- */
.hero{
  position:relative;
  padding:64px 0 80px;
  background:
    linear-gradient(rgba(22,68,63,.045) 1px,transparent 1px) 0 0/100% 56px,
    linear-gradient(90deg,rgba(22,68,63,.045) 1px,transparent 1px) 0 0/56px 100%,
    var(--c-bg);
  overflow:hidden;
}
.hero-grid{display:flex;flex-wrap:wrap;align-items:center;gap:56px;}
.hero-copy{flex:1 1 520px;min-width:0;}
.hero-media{flex:1 1 400px;min-width:0;}
.crumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--c-ink-3);
  margin-bottom:24px;
}
.crumb a{color:var(--c-ink-2);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:var(--c-line-2);}
.crumb .current{color:var(--c-ink-3);}
.hero h1{margin-bottom:20px;}
.hero h1 .accent{color:var(--c-primary);}
.hero-sub{
  font-size:17px;line-height:1.85;color:var(--c-ink-2);
  max-width:560px;margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-primary);
  background:#fff;border:1px solid var(--c-line);
  border-radius:999px;padding:7px 14px;
}
.tag i{font-size:12px;color:var(--c-data);}
.hero-figure{position:relative;max-width:460px;margin-left:auto;}
.hero-figure::before{
  content:"";position:absolute;inset:auto -14px -14px auto;
  width:78%;height:78%;border-radius:18px;background:var(--c-mint);
  transform:translate(12px,12px);z-index:0;
}
.hero-figure img{
  position:relative;z-index:1;
  width:100%;aspect-ratio:1/1;object-fit:cover;
  border-radius:var(--r-card);
  filter:saturate(.92);
  box-shadow:var(--sh-2);
}
.hero-figure::after{
  content:"";position:absolute;inset:0;z-index:2;border-radius:var(--r-card);
  background:rgba(22,68,63,.08);pointer-events:none;
}

/* ---------- 指标条 ---------- */
.metrics{
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
  background:var(--c-surface);
}
.metrics-grid{display:flex;flex-wrap:wrap;}
.metric{
  flex:1 1 220px;
  padding:28px 24px;
  border-right:1px solid var(--c-line);
}
.metric:last-child{border-right:none;}
.metric-num{
  font-family:"Manrope","Noto Sans SC",sans-serif;
  font-size:48px;font-weight:600;line-height:1.05;
  color:var(--c-primary);letter-spacing:-.02em;
}
.metric-num em{font-style:normal;font-size:20px;font-weight:600;color:var(--c-ink-3);margin-left:6px;}
.metric p{margin:10px 0 0;font-size:14px;line-height:1.7;color:var(--c-ink-2);}

/* ---------- 三张纵向卡 ---------- */
.sec-grid{display:flex;flex-wrap:wrap;gap:24px;align-items:flex-start;padding-top:24px;}
.sec-card{
  --ty:0px;
  flex:1 1 300px;
  display:flex;flex-direction:column;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transform:translateY(var(--ty));
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.sec-card:hover{
  transform:translateY(calc(var(--ty) - 2px));
  box-shadow:var(--sh-2);
  border-color:rgba(22,68,63,.3);
}
.sec-card .thumb{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--c-mint);
}
.sec-card .thumb img{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(.9);
  transition:transform .35s ease;
}
.sec-card:hover .thumb img{transform:scale(1.03);}
.sec-card .thumb::after{
  content:"";position:absolute;inset:0;background:rgba(22,68,63,.08);
}
.sec-card .body{padding:28px;display:flex;flex-direction:column;flex:1 1 auto;}
.sec-num{
  font-family:"Manrope",monospace;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:rgba(22,68,63,.6);
  margin-bottom:10px;
}
.sec-card h3{font-size:20px;margin-bottom:10px;}
.sec-card .desc{font-size:14.5px;line-height:1.8;color:var(--c-ink-2);margin-bottom:18px;}
.sec-list{margin-bottom:22px;}
.sec-list li{
  position:relative;
  padding-left:22px;
  font-size:14px;line-height:1.8;color:var(--c-ink-2);
  margin-bottom:8px;
}
.sec-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:50%;
  background:var(--c-mint);border:1.5px solid var(--c-primary);
}
.sec-card .foot{margin-top:auto;}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--c-primary);
  position:relative;
}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:-3px;height:1.5px;width:0;
  background:var(--c-primary);transition:width .22s ease;
}
.link-arrow:hover::after{width:100%;}
.link-arrow i{font-size:12px;transition:transform .22s ease;}
.link-arrow:hover i{transform:translateX(3px);}

/* ---------- 自检清单 ---------- */
.checklist{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:40px;
  box-shadow:var(--sh-1);
}
.check-grid{display:flex;flex-wrap:wrap;gap:0 40px;}
.check-item{
  flex:1 1 320px;
  display:flex;gap:14px;
  padding:18px 0;
  border-bottom:1px dashed var(--c-line);
}
.check-box{
  flex:0 0 auto;
  width:22px;height:22px;margin-top:4px;
  border-radius:6px;
  border:1.5px solid var(--c-primary);
  background:var(--c-mint);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-primary);font-size:11px;
}
.check-item strong{display:block;font-size:15.5px;font-weight:700;margin-bottom:4px;color:var(--c-ink);}
.check-item span.txt{display:block;font-size:14px;line-height:1.75;color:var(--c-ink-2);}

/* ---------- 深色提示条 ---------- */
.notice{
  background:var(--c-primary-deep);
  color:#F0F5F2;
  border-radius:var(--r-card);
  padding:28px 32px;
  display:flex;gap:18px;align-items:flex-start;
  box-shadow:var(--sh-2);
}
.notice .ico{
  flex:0 0 auto;width:42px;height:42px;border-radius:12px;
  background:rgba(224,123,57,.16);
  color:var(--c-accent);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;
}
.notice h4{color:#fff;font-size:17px;margin-bottom:6px;}
.notice p{margin:0;font-size:14.5px;line-height:1.8;color:rgba(214,232,225,.82);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;}
.accordion{
  background:transparent;
  border:none;
  margin:0;
}
.accordion .accordion-item{
  background:transparent;
  border:none;
  border-bottom:1px solid var(--c-line);
}
.accordion .accordion-title{
  background:transparent;
  border:none;
  padding:22px 48px 22px 0;
  font-size:16px;font-weight:600;color:var(--c-ink);
  position:relative;
  transition:color .18s ease;
}
.accordion .accordion-title:hover{color:var(--c-primary);background:transparent;}
.accordion .accordion-title::before{
  content:"+";
  position:absolute;right:10px;top:50%;transform:translateY(-50%);
  font-family:"Manrope",sans-serif;
  font-size:20px;font-weight:500;color:var(--c-primary);
  line-height:1;
}
.accordion .accordion-item.is-active .accordion-title::before{content:"−";}
.accordion .accordion-item.is-active .accordion-title{color:var(--c-primary);}
.accordion .accordion-content{
  background:transparent;
  border:none;
  padding:0 40px 22px 0;
  color:var(--c-ink-2);
  font-size:15px;line-height:1.8;
}
.accordion .accordion-content p{margin-bottom:0;}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--c-primary) 0%,var(--c-primary-deep) 100%);
  border-radius:20px;
  padding:48px;
  display:flex;flex-wrap:wrap;gap:28px;
  align-items:center;justify-content:space-between;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;
  width:240px;height:240px;border-radius:50%;
  background:rgba(214,232,225,.07);
}
.cta-band h2{color:#fff;font-size:30px;position:relative;}
.cta-band p{color:rgba(214,232,225,.85);font-size:15px;margin:10px 0 0;max-width:560px;position:relative;}
.cta-band .actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.55);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}

/* ---------- 表单弹层 ---------- */
.reveal-overlay{background:rgba(14,47,43,.55);}
.reveal.consult-modal{
  border-radius:20px;
  padding:34px;
  border:1px solid var(--c-line);
  box-shadow:0 24px 60px -20px rgba(14,47,43,.5);
  width:100%;
  max-width:720px;
}
.consult-modal h3{font-size:22px;margin-bottom:6px;}
.consult-modal .sub{font-size:14px;color:var(--c-ink-2);margin-bottom:24px;}
.field-row{display:flex;flex-wrap:wrap;gap:0 20px;}
.field{flex:1 1 240px;margin-bottom:18px;}
.field.full{flex:1 1 100%;}
.field label{
  display:block;
  font-size:14px;font-weight:600;color:var(--c-ink);
  margin-bottom:8px;
}
.field label .req{color:var(--c-accent);margin-left:2px;}
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;
  height:46px;
  padding:0 14px;
  font-size:15px;
  font-family:inherit;
  color:var(--c-ink);
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-input);
  transition:border-color .18s ease,box-shadow .18s ease;
  appearance:none;
  margin:0;
}
.field textarea{height:110px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field select{
  background-image:linear-gradient(45deg,transparent 50%,var(--c-ink-2) 50%),linear-gradient(135deg,var(--c-ink-2) 50%,transparent 50%);
  background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;
  background-size:6px 6px,6px 6px;
  background-repeat:no-repeat;
}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 2px rgba(214,232,225,.9);
}
.check-line{display:flex;align-items:flex-start;gap:10px;margin:4px 0 16px;}
.check-line input{margin:4px 0 0;width:16px;height:16px;accent-color:var(--c-primary);}
.check-line span{font-size:13.5px;line-height:1.7;color:var(--c-ink-2);}
.privacy-note{
  font-size:12px;line-height:1.7;color:var(--c-ink-3);
  border-top:1px solid var(--c-line);
  padding-top:14px;
  margin-top:6px;
}
.modal-close{
  position:absolute;right:16px;top:14px;
  width:36px;height:36px;border-radius:10px;
  border:1px solid var(--c-line);background:#fff;
  color:var(--c-ink-2);font-size:15px;
  display:inline-flex;align-items:center;justify-content:center;
  transition:all .18s ease;
}
.modal-close:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-mint);}
.form-success{
  display:none;
  align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--c-primary);
  margin-top:12px;
}
.form-success.is-visible{display:flex;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-primary-deep);
  color:rgba(214,232,225,.8);
  padding:72px 0 0;
  margin-top:96px;
}
.footer-grid{
  display:flex;flex-wrap:wrap;
  gap:40px 32px;
  padding-bottom:48px;
}
.footer-brand{flex:1 1 300px;min-width:0;}
.footer-col{flex:1 1 180px;min-width:0;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text span{color:rgba(214,232,225,.9);}
.footer-brand p{
  font-size:14px;line-height:1.8;color:rgba(214,232,225,.72);
  max-width:340px;margin-bottom:18px;
}
.footer-brand .contact{font-size:13.5px;line-height:1.9;color:rgba(214,232,225,.72);}
.footer-brand .contact strong{color:#fff;font-weight:600;}
.footer-col h4{
  font-size:14px;font-weight:700;color:#fff;
  letter-spacing:.04em;margin-bottom:16px;
}
.footer-col a{
  display:block;
  font-size:14px;color:rgba(214,232,225,.75);
  padding:6px 0;
  transition:color .18s ease,transform .18s ease;
}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px 24px;
  align-items:center;justify-content:space-between;
  font-size:13px;
  color:rgba(214,232,225,.7);
}
.footer-bottom .fb-right{display:flex;flex-wrap:wrap;gap:8px 20px;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  h1{font-size:38px;}
  h2{font-size:28px;}
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .header-inner{gap:16px;}
  .nav-main{display:none;}
  .header-right .btn-primary{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero{padding:48px 0 64px;}
  .hero-grid{gap:40px;}
  .hero-figure{margin:0 auto;max-width:420px;}
  .sec-card{flex:1 1 100%;}
  .check-grid{gap:0 28px;}
  .cta-band{padding:36px;}
  .cta-band h2{font-size:26px;}
  .site-footer{margin-top:72px;padding-top:56px;}
}
@media screen and (max-width:639px){
  .container{padding-left:20px;padding-right:20px;}
  h1{font-size:32px;}
  h2{font-size:26px;}
  h3{font-size:20px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .hero{padding:36px 0 52px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{flex:1 1 100%;}
  .metric{flex:1 1 100%;border-right:none;border-bottom:1px solid var(--c-line);}
  .metric:last-child{border-bottom:none;}
  .metric-num{font-size:40px;}
  .sec-card .body{padding:20px;}
  .checklist{padding:24px;}
  .check-item{flex:1 1 100%;}
  .notice{padding:22px;flex-direction:column;gap:12px;}
  .cta-band{padding:28px;border-radius:16px;}
  .cta-band .actions{width:100%;}
  .cta-band .actions .btn{width:100%;}
  .reveal.consult-modal{
    width:100%;max-width:100%;height:100%;
    top:0;left:0;margin:0;
    border-radius:0;padding:24px 20px 32px;
    overflow-y:auto;
  }
  .field{flex:1 1 100%;}
  .footer-grid{gap:32px;}
  .footer-brand{flex:1 1 100%;}
  .footer-col{flex:1 1 45%;}
}

/* roulang page: category3 */
:root{
  --c-primary:#16443F;
  --c-primary-deep:#0E2F2B;
  --c-accent:#E07B39;
  --c-accent-hover:#C4662A;
  --c-mint:#D6E8E1;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-ink:#1A1D1C;
  --c-ink-2:#56605C;
  --c-ink-3:#8A938E;
  --c-line:#E3DFD6;
  --c-line-strong:#CFC9BC;
  --c-data:#2E7D6B;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --r-input:10px;
  --shadow-1:0 1px 2px rgba(22,68,63,.06);
  --shadow-2:0 12px 32px -12px rgba(22,68,63,.18);
  --container:1200px;
  --gutter:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-primary-deep);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;border:0;background:none;cursor:pointer;}
button,input,select,textarea{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--gutter);
}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.06em;
  font-weight:700;
  color:var(--c-primary);
  background:var(--c-mint);
  border-radius:999px;
  padding:4px 10px;
  margin-bottom:18px;
}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{
  font-size:34px;
  line-height:1.3;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--c-ink);
}
.section-head p{
  margin-top:14px;
  font-size:16px;
  color:var(--c-ink-2);
  line-height:1.85;
}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:12px 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:700;
  letter-spacing:.01em;
  transition:transform .18s ease,background .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease;
  text-decoration:none;
  white-space:nowrap;
}
.btn-primary{
  background:var(--c-accent);
  color:#fff;
  box-shadow:var(--shadow-1);
}
.btn-primary:hover{
  background:var(--c-accent-hover);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--shadow-2);
}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-secondary{
  background:transparent;
  color:var(--c-primary);
  border:1.5px solid var(--c-primary);
}
.btn-secondary:hover{
  background:var(--c-mint);
  color:var(--c-primary-deep);
}
.btn-ghost{
  background:#fff;
  color:var(--c-primary);
  border:1.5px solid var(--c-line-strong);
}
.btn-ghost:hover{border-color:var(--c-primary);background:var(--c-mint);}
.btn-sm{min-height:40px;padding:9px 16px;font-size:14px;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:700;
  color:var(--c-primary);
  position:relative;
}
.link-arrow::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-3px;
  height:1.5px;
  width:0;
  background:var(--c-primary);
  transition:width .22s ease;
}
.link-arrow:hover::after{width:100%;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px -16px rgba(14,47,43,.55);}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:64px;
}
.header-left,.header-right{display:flex;align-items:center;gap:20px;}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;}
.brand-mark{
  width:28px;height:28px;border-radius:8px;
  background:var(--c-primary);
  position:relative;
  flex:none;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:8px;
  border:2px solid var(--c-mint);
  border-radius:3px;
}
.brand-text{display:flex;align-items:baseline;gap:5px;color:var(--c-ink);}
.brand-text strong{
  font-family:"Manrope","Noto Sans SC",sans-serif;
  font-size:19px;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--c-primary);
}
.brand-text span{
  font-size:14px;
  font-weight:600;
  letter-spacing:.04em;
  color:var(--c-ink-2);
}
.nav-main{display:flex;align-items:center;gap:4px;}
.nav-main a{
  display:inline-block;
  padding:8px 12px;
  border-radius:10px;
  font-size:15px;
  font-weight:500;
  color:var(--c-ink-2);
  transition:background .18s ease,color .18s ease;
}
.nav-main a:hover{background:rgba(214,232,225,.55);color:var(--c-primary);}
.nav-main a.is-active{
  background:rgba(214,232,225,.75);
  color:var(--c-primary);
  font-weight:700;
}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  color:var(--c-ink-2);
  border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.icon-btn:hover{background:var(--c-mint);color:var(--c-primary);border-color:var(--c-line);}
.icon-btn svg{width:19px;height:19px;}
.nav-toggle{display:none;}

.mobile-panel{
  position:fixed;
  inset:0;
  z-index:200;
  background:var(--c-bg);
  display:none;
  flex-direction:column;
  padding:20px;
}
.mobile-panel.is-open{display:flex;}
.mobile-panel .mp-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:18px;
  border-bottom:1px solid var(--c-line);
}
.mobile-panel nav{display:flex;flex-direction:column;gap:6px;margin-top:24px;}
.mobile-panel nav a{
  font-size:18px;
  font-weight:600;
  padding:14px 12px;
  border-radius:12px;
  color:var(--c-ink);
  border:1px solid var(--c-line);
  background:#fff;
}
.mobile-panel nav a.is-active{background:var(--c-mint);color:var(--c-primary);border-color:var(--c-mint);}
.mobile-panel .mp-cta{margin-top:auto;padding-top:20px;}
.mobile-panel .mp-cta .btn{width:100%;}

/* ---------- 页头（居中窄栏） ---------- */
.page-head{
  padding:64px 0 56px;
  background-color:var(--c-bg);
  background-image:
    linear-gradient(rgba(22,68,63,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22,68,63,.05) 1px, transparent 1px);
  background-size:48px 48px;
  border-bottom:1px solid var(--c-line);
}
.page-head-inner{
  max-width:720px;
  margin:0 auto;
  text-align:center;
}
.page-head h1{
  font-size:52px;
  line-height:1.2;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--c-ink);
}
.page-head .lede{
  margin-top:20px;
  font-size:17px;
  color:var(--c-ink-2);
  line-height:1.85;
}
.fault-search{
  display:flex;
  gap:10px;
  max-width:520px;
  margin:32px auto 0;
}
.fault-search input{
  flex:1;
  height:46px;
  border-radius:var(--r-input);
  border:1px solid var(--c-line-strong);
  background:#fff;
  padding:0 16px;
  color:var(--c-ink);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.fault-search input::placeholder{color:var(--c-ink-3);}
.fault-search input:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(214,232,225,.85);
}
.fault-search .btn{min-height:46px;}
.head-note{
  margin-top:14px;
  font-size:13px;
  color:var(--c-ink-3);
}

/* ---------- 图片带 ---------- */
.banner-wrap{padding-top:56px;}
.banner-strip{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  aspect-ratio:21/9;
  min-height:180px;
  background:var(--c-primary-deep);
}
.banner-strip img{
  width:100%;height:100%;
  object-fit:cover;
  border-radius:0;
  filter:saturate(.9);
}
.banner-strip::after{
  content:"";
  position:absolute;inset:0;
  background:rgba(22,68,63,.34);
}
.banner-caption{
  position:absolute;
  left:24px;
  bottom:24px;
  z-index:2;
  background:#fff;
  border-radius:12px;
  padding:16px 20px;
  max-width:360px;
  box-shadow:var(--shadow-2);
}
.banner-caption strong{
  display:block;
  font-size:16px;
  font-weight:700;
  color:var(--c-primary);
  margin-bottom:4px;
}
.banner-caption span{
  font-size:13px;
  color:var(--c-ink-2);
  line-height:1.7;
}

/* ---------- 故障卡 ---------- */
.fault-grid .cell{display:flex;}
.fault-card{
  display:flex;
  flex-direction:column;
  width:100%;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  position:relative;
}
.fault-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
  border-color:rgba(22,68,63,.3);
}
.fault-card .num{
  font-family:"Manrope",monospace;
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:rgba(22,68,63,.6);
  margin-bottom:10px;
  display:block;
}
.fault-card h3{
  font-size:18px;
  font-weight:700;
  line-height:1.5;
  color:var(--c-ink);
  margin-bottom:14px;
}
.check-list{display:flex;flex-direction:column;gap:9px;margin-bottom:20px;}
.check-list li{
  position:relative;
  padding-left:22px;
  font-size:14px;
  line-height:1.7;
  color:var(--c-ink-2);
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:8px;
  width:10px;height:10px;
  border-radius:50%;
  background:var(--c-mint);
  border:2px solid var(--c-primary);
}
.fault-card .link-arrow{margin-top:auto;}
.filter-empty{
  margin-top:28px;
  padding:24px;
  text-align:center;
  border:1px dashed var(--c-line-strong);
  border-radius:var(--r-card);
  background:rgba(214,232,225,.3);
  color:var(--c-ink-2);
  font-size:15px;
}

/* ---------- 三步定位 ---------- */
.steps-band{
  background:var(--c-surface);
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
}
.steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
  position:relative;
}
.step{
  background:var(--c-bg);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px 24px;
}
.step .step-idx{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  border-radius:50%;
  background:var(--c-primary);
  color:#fff;
  font-family:"Manrope",monospace;
  font-size:14px;
  font-weight:700;
  margin-bottom:16px;
}
.step h3{font-size:19px;font-weight:700;margin-bottom:10px;color:var(--c-ink);}
.step p{font-size:14.5px;color:var(--c-ink-2);line-height:1.8;}

/* ---------- 兼容性 ---------- */
.compat-card{
  height:100%;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--shadow-1);
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.compat-card:hover{border-color:rgba(22,68,63,.3);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.compat-icon{
  width:44px;height:44px;
  border-radius:12px;
  background:var(--c-mint);
  color:var(--c-primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-bottom:16px;
}
.compat-icon svg{width:22px;height:22px;}
.compat-card h3{font-size:18px;font-weight:700;margin-bottom:10px;}
.compat-card p{font-size:14.5px;color:var(--c-ink-2);line-height:1.8;}
.compat-tag{
  display:inline-block;
  margin-top:16px;
  font-size:12px;
  letter-spacing:.06em;
  font-weight:700;
  color:var(--c-primary);
  background:var(--c-mint);
  border-radius:999px;
  padding:4px 10px;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.accordion{border:0;background:transparent;margin:0;}
.accordion .accordion-item{
  border:0;
  border-bottom:1px solid var(--c-line);
  background:transparent;
}
.accordion .accordion-title{
  padding:22px 44px 22px 0;
  font-size:16px;
  font-weight:600;
  color:var(--c-ink);
  border:0;
  background:transparent;
  position:relative;
  transition:color .18s ease;
  line-height:1.6;
}
.accordion .accordion-title:hover,
.accordion .accordion-title:focus{color:var(--c-primary);background:transparent;}
.accordion .accordion-title::before{
  content:"";
  position:absolute;
  right:8px;
  top:50%;
  width:12px;
  height:2px;
  background:var(--c-primary);
  transform:translateY(-50%);
}
.accordion .accordion-title::after{
  content:"";
  position:absolute;
  right:13px;
  top:50%;
  width:2px;
  height:12px;
  background:var(--c-primary);
  transform:translateY(-50%);
  transition:opacity .18s ease;
}
.accordion .accordion-item.is-active .accordion-title::after{opacity:0;}
.accordion .accordion-content{
  padding:0 44px 24px 0;
  border:0;
  background:transparent;
  color:var(--c-ink-2);
  font-size:15px;
  line-height:1.8;
}
.accordion .accordion-content p{margin-bottom:10px;}
.accordion .accordion-content p:last-child{margin-bottom:0;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  padding:56px;
  background:var(--c-primary-deep);
  color:#fff;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  opacity:.18;
  filter:saturate(.6);
}
.cta-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-inner h2{
  font-size:30px;
  line-height:1.35;
  font-weight:700;
  color:#fff;
  max-width:560px;
}
.cta-inner p{
  margin-top:12px;
  font-size:15px;
  color:rgba(214,232,225,.85);
  line-height:1.8;
  max-width:560px;
}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.cta-band .btn-secondary{
  color:#fff;
  border-color:rgba(255,255,255,.5);
}
.cta-band .btn-secondary:hover{
  background:rgba(255,255,255,.12);
  color:#fff;
  border-color:#fff;
}
.privacy-line{
  position:relative;
  z-index:2;
  margin-top:28px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:12.5px;
  color:rgba(214,232,225,.65);
  line-height:1.8;
}

/* ---------- 弹层表单 ---------- */
.reveal{
  border-radius:20px;
  padding:32px;
  max-width:720px;
}
.reveal h3{
  font-size:20px;
  font-weight:700;
  color:var(--c-ink);
  margin-bottom:6px;
}
.reveal .modal-sub{
  font-size:14px;
  color:var(--c-ink-2);
  margin-bottom:22px;
}
.form-field{margin-bottom:16px;}
.form-field label{
  display:block;
  font-size:14px;
  font-weight:600;
  color:var(--c-ink);
  margin-bottom:6px;
}
.form-field .req{color:var(--c-accent);}
.form-field input[type="text"],
.form-field input[type="tel"],
.form-field select,
.form-field textarea{
  width:100%;
  min-height:46px;
  border-radius:var(--r-input);
  border:1px solid var(--c-line-strong);
  background:#fff;
  padding:10px 14px;
  color:var(--c-ink);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.form-field textarea{min-height:104px;resize:vertical;line-height:1.7;}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(214,232,225,.85);
}
.form-consent{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:13px;
  color:var(--c-ink-2);
  line-height:1.7;
  margin-bottom:18px;
}
.form-consent input{margin-top:4px;width:16px;height:16px;accent-color:var(--c-primary);}
.modal-foot{
  font-size:12px;
  color:var(--c-ink-3);
  line-height:1.7;
  margin-top:16px;
}
.close-button{
  position:absolute;
  top:16px;
  right:18px;
  color:var(--c-ink-3);
  font-size:26px;
  line-height:1;
}
.close-button:hover{color:var(--c-primary);}
.form-success{
  display:none;
  margin-top:14px;
  font-size:14px;
  font-weight:600;
  color:var(--c-primary);
}
.form-success.is-visible{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-primary-deep);
  color:rgba(214,232,225,.85);
  padding:72px 0 0;
  margin-top:96px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.site-footer .brand-text strong{color:#fff;}
.site-footer .brand-text span{color:rgba(214,232,225,.85);}
.site-footer .brand-mark{background:rgba(255,255,255,.14);}
.site-footer .brand-mark::after{border-color:var(--c-mint);}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  line-height:1.85;
  color:rgba(214,232,225,.72);
  max-width:340px;
}
.footer-brand .contact{
  margin-top:16px;
  font-size:13.5px;
  color:rgba(214,232,225,.72);
  line-height:1.9;
}
.footer-brand .contact strong{color:var(--c-mint);}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:#fff;
  letter-spacing:.04em;
  margin-bottom:16px;
}
.footer-col a{
  display:block;
  font-size:14px;
  color:rgba(214,232,225,.75);
  padding:6px 0;
  transition:color .18s ease,padding-left .18s ease;
}
.footer-col a:hover{color:#fff;padding-left:4px;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:20px 0 28px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(214,232,225,.7);
}
.footer-bottom .fb-right{display:flex;gap:20px;flex-wrap:wrap;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .nav-main{display:none;}
  .nav-toggle{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:40px;height:40px;
    border-radius:10px;
    border:1px solid var(--c-line);
    color:var(--c-primary);
  }
  .nav-toggle svg{width:20px;height:20px;}
  .section{padding:72px 0;}
  .page-head{padding:48px 0 44px;}
  .page-head h1{font-size:38px;}
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:40px;}
  .cta-inner h2{font-size:26px;}
}
@media screen and (max-width:767px){
  .header-right .btn-sm{display:none;}
  .section{padding:56px 0;}
  .section-head h2{font-size:26px;}
  .page-head h1{font-size:32px;}
  .page-head .lede{font-size:15.5px;}
  .fault-search{flex-direction:column;}
  .fault-search .btn{width:100%;}
  .banner-strip{aspect-ratio:16/10;}
  .banner-caption{left:14px;right:14px;bottom:14px;max-width:none;padding:14px 16px;}
  .fault-card{padding:22px;}
  .cta-band{padding:28px 22px;}
  .cta-inner h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{margin-top:64px;padding-top:56px;}
  .reveal{padding:24px 20px;}
  .footer-bottom{font-size:12px;}
}
@media screen and (max-width:519px){
  .brand-text strong{font-size:17px;}
  .brand-text span{font-size:13px;}
  .page-head h1{font-size:28px;}
  .accordion .accordion-title{padding-right:38px;font-size:15px;}
  .accordion .accordion-content{padding-right:0;}
}