/* roulang page: index */
:root{
  --c-primary:#16556E;
  --c-primary-dark:#0E3E51;
  --c-primary-light:#E7F1F5;
  --c-accent:#E08A3C;
  --c-success:#2E9E7A;
  --c-bg:#F6F8F9;
  --c-card:#FFFFFF;
  --c-alt:#EDF3F5;
  --c-text:#10232B;
  --c-text-2:#566A74;
  --c-text-3:#8A9AA2;
  --c-line:#E1E8EB;
  --r-card:12px;
  --r-btn:8px;
  --r-input:8px;
  --r-badge:6px;
  --r-img:10px;
  --sh-1:0 1px 2px rgba(16,35,43,.06),0 6px 16px rgba(16,35,43,.05);
  --sh-2:0 8px 24px rgba(16,35,43,.10);
  --sh-3:0 10px 30px rgba(16,35,43,.16);
  --t:180ms ease-out;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t),border-color var(--t),background-color var(--t);}
a:hover{color:var(--c-primary-dark);}
p{margin:0 0 18px;color:var(--c-text-2);}
h1,h2,h3,h4{margin:0;color:var(--c-text);font-weight:700;letter-spacing:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,textarea,select{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
::selection{background:var(--c-primary-light);color:var(--c-primary-dark);}

/* Foundation 默认样式覆盖 */
.row{max-width:var(--container);margin-left:auto;margin-right:auto;}
.row::before,.row::after{display:table;content:" ";}
.row::after{clear:both;}
.column,.columns{padding-left:14px;padding-right:14px;}
button,.button{
  background:var(--c-primary);
  color:#fff;
  border-radius:var(--r-btn);
  font-weight:600;
  font-size:15px;
  padding:12px 22px;
  border:1px solid transparent;
  transition:background-color var(--t),transform var(--t),box-shadow var(--t);
}
button:hover,.button:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.button.secondary{background:#fff;color:var(--c-primary);border:1px solid var(--c-primary);}
.button.secondary:hover{background:var(--c-primary-light);color:var(--c-primary-dark);}
table{border-collapse:collapse;width:100%;}
input[type="search"],input[type="text"],input[type="email"],input[type="tel"]{
  height:44px;border:1px solid var(--c-line);border-radius:var(--r-input);background:#fff;color:var(--c-text);
  padding:0 14px;box-shadow:none;margin:0;
}
input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(22,85,110,.2);outline:none;}
label{font-size:14px;color:var(--c-text-2);font-weight:500;}

/* 容器 */
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px;}
.section{padding:96px 0;}
.section--alt{background:var(--c-alt);}
.section--white{background:#fff;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-block;font-size:13px;line-height:1.6;color:var(--c-primary);
  background:var(--c-primary-light);border-radius:var(--r-badge);padding:4px 10px;margin-bottom:14px;font-weight:600;
}
h1{font-size:clamp(30px,4vw,46px);line-height:1.25;font-weight:700;}
h2{font-size:30px;line-height:1.35;font-weight:700;}
h3{font-size:21px;line-height:1.45;font-weight:600;}
.section-head p{font-size:16px;color:var(--c-text-2);margin-top:14px;margin-bottom:0;}
h2.with-bar{position:relative;padding-left:16px;}
h2.with-bar::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:var(--c-primary);
}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;padding:14px 24px;border-radius:var(--r-btn);
  border:1px solid transparent;transition:background-color var(--t),color var(--t),transform var(--t),box-shadow var(--t),border-color var(--t);
  cursor:pointer;white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-light);color:var(--c-primary-dark);border-color:var(--c-primary-dark);}
.btn-light{background:#fff;color:var(--c-primary-dark);}
.btn-light:hover{background:var(--c-primary-light);color:var(--c-primary-dark);transform:translateY(-1px);}
.btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.7);}
.btn-line:hover{background:rgba(255,255,255,.14);color:#fff;}
.btn-sm{padding:10px 16px;font-size:14px;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:15px;
}
.btn-link i{font-size:12px;transition:transform var(--t);}
.btn-link:hover{color:var(--c-primary-dark);text-decoration:underline;}
.btn-link:hover i{transform:translateX(3px);}

/* 徽章 / 标签 */
.badge{
  display:inline-block;font-size:13px;line-height:1.6;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-light);border-radius:var(--r-badge);padding:4px 10px;
}
.badge-accent{color:#8a4a09;background:#FBEEE0;}
.tag{
  display:inline-block;font-size:13px;color:var(--c-text-2);background:#F1F4F6;
  border:1px solid var(--c-line);border-radius:999px;padding:6px 14px;
}

/* 顶栏导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--t),background-color var(--t);
}
.site-header.scrolled{box-shadow:0 4px 18px rgba(16,35,43,.08);background:rgba(255,255,255,.97);}
.nav-wrap{
  max-width:var(--container);margin:0 auto;padding:0 20px;height:64px;
  display:flex;align-items:center;gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:9px;background:var(--c-primary);color:#fff;
  font-size:15px;font-weight:700;letter-spacing:0;
}
.brand-divider{width:1px;height:20px;background:var(--c-line);}
.brand-text{font-size:16px;font-weight:700;color:var(--c-primary-dark);white-space:nowrap;}
.brand:hover .brand-text{color:var(--c-primary);}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:8px;}
.main-nav a{
  position:relative;font-size:15px;color:var(--c-text-2);font-weight:500;padding:6px 0;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-16px;height:2px;background:transparent;border-radius:2px;
  transition:background-color var(--t);
}
.main-nav a:hover{color:var(--c-primary);}
.main-nav a:hover::after{background:var(--c-primary-light);}
.main-nav a.active{color:var(--c-primary);font-weight:600;}
.main-nav a.active::after{background:var(--c-primary);}
.nav-tools{display:flex;align-items:center;gap:14px;margin-left:auto;}
.command-search{
  display:flex;align-items:center;gap:8px;width:240px;height:40px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-input);padding:0 10px;
  transition:border-color var(--t),box-shadow var(--t);
}
.command-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(22,85,110,.14);}
.command-search i{color:var(--c-text-3);font-size:14px;}
.command-search input{
  flex:1;border:0;height:38px;padding:0;font-size:14px;background:transparent;box-shadow:none;
}
.command-search input:focus{box-shadow:none;}
.command-search kbd{
  font-family:inherit;font-size:11px;color:var(--c-text-3);background:#F1F4F6;
  border:1px solid var(--c-line);border-radius:5px;padding:2px 6px;white-space:nowrap;
}
.nav-quick{font-size:14px;color:var(--c-text-2);font-weight:500;white-space:nowrap;}
.nav-quick:hover{color:var(--c-primary);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--c-line);
  background:#fff;color:var(--c-primary);font-size:16px;align-items:center;justify-content:center;
}
.nav-toggle:hover{background:var(--c-primary-light);transform:none;box-shadow:none;}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;background:#fff;z-index:80;display:flex;flex-direction:column;
  transform:translateY(-8px);opacity:0;visibility:hidden;transition:opacity var(--t),transform var(--t),visibility var(--t);
}
.drawer.open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;border-bottom:1px solid var(--c-line);}
.drawer-close{width:40px;height:40px;border-radius:var(--r-btn);color:var(--c-text-2);font-size:18px;display:flex;align-items:center;justify-content:center;}
.drawer-close:hover{background:var(--c-alt);box-shadow:none;transform:none;}
.drawer-search{margin:16px 20px 8px;}
.drawer-search .command-search{width:100%;}
.drawer-nav{padding:8px 20px;overflow-y:auto;flex:1;}
.drawer-nav .dn-title{font-size:13px;color:var(--c-text-3);margin:14px 0 8px;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 0;font-size:16px;color:var(--c-text);border-bottom:1px solid var(--c-line);
}
.drawer-nav a i{font-size:12px;color:var(--c-text-3);}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--c-primary);}
.drawer-foot{padding:16px 20px calc(20px + env(safe-area-inset-bottom));border-top:1px solid var(--c-line);}
.drawer-foot .btn{width:100%;}

/* Hero */
.hero{
  position:relative;background:var(--c-bg);overflow:hidden;
  padding:84px 0 88px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(22,85,110,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(22,85,110,.04) 1px,transparent 1px);
  background-size:48px 48px;
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero-card{max-width:640px;}
.hero-card h1{margin-bottom:18px;}
.hero-sub{
  font-size:18px;line-height:1.7;color:var(--c-text-2);margin-bottom:28px;font-weight:500;max-width:520px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.trust-row{display:flex;flex-wrap:wrap;gap:22px;border-top:1px solid var(--c-line);padding-top:20px;}
.trust-item{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-2);}
.trust-item .dot{width:8px;height:8px;border-radius:50%;background:var(--c-success);flex-shrink:0;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;border-radius:14px;box-shadow:var(--sh-2);aspect-ratio:16/11;object-fit:cover;
}
.hero-visual::after{
  content:"";position:absolute;inset:0;border-radius:14px;
  background:linear-gradient(180deg,rgba(14,62,81,.06),rgba(14,62,81,.18));
  pointer-events:none;
}
.hero-float-card{
  position:absolute;left:-18px;bottom:22px;z-index:2;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-3);padding:16px 18px;min-width:238px;
}
.hero-float-card .hfc-title{font-size:13px;color:var(--c-text-3);margin-bottom:10px;font-weight:600;}
.hero-float-card .hfc-row{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:14px;color:var(--c-text-2);padding:5px 0;
}
.hero-float-card .hfc-row b{color:var(--c-text);font-weight:600;}
.hero-float-card .ok{color:var(--c-success);font-size:12px;}

/* 特色 */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.feature-item{
  display:flex;gap:18px;background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.feature-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(22,85,110,.25);}
.feature-icon{
  width:48px;height:48px;flex-shrink:0;border-radius:12px;background:var(--c-primary-light);
  color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:20px;
}
.feature-item h3{margin-bottom:8px;font-size:19px;}
.feature-item p{font-size:15px;line-height:1.75;margin-bottom:12px;}

/* 演示 */
.demo-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:48px;align-items:start;}
.window{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-2);overflow:hidden;
}
.window-bar{
  display:flex;align-items:center;gap:8px;padding:12px 16px;background:#F7FAFB;border-bottom:1px solid var(--c-line);
}
.window-bar span{width:10px;height:10px;border-radius:50%;background:#D9E2E6;}
.window-bar .wb-title{margin-left:8px;width:auto;height:auto;border-radius:0;background:none;font-size:13px;color:var(--c-text-3);}
.window img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.steps{counter-reset:step;}
.step{display:flex;gap:16px;padding-bottom:26px;position:relative;}
.step:last-child{padding-bottom:0;}
.step-num{
  width:34px;height:34px;flex-shrink:0;border-radius:50%;border:1.5px solid var(--c-primary);
  color:var(--c-primary);background:#fff;display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;
}
.step-body h3{font-size:17px;margin-bottom:6px;}
.step-body p{font-size:14.5px;margin:0;line-height:1.75;}
.step:not(:last-child)::before{
  content:"";position:absolute;left:16.5px;top:38px;bottom:6px;width:1px;background:var(--c-line);
}

/* 数据与证言 */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:56px;}
.metric .num{
  font-size:40px;font-weight:700;color:var(--c-primary-dark);line-height:1.1;margin-bottom:6px;
  font-variant-numeric:tabular-nums;
}
.metric .num small{font-size:17px;font-weight:600;color:var(--c-primary);margin-left:4px;}
.metric .lab{font-size:14px;color:var(--c-text-2);}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.quote-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px;
  box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t);
}
.quote-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.quote-card .qmark{font-size:22px;color:var(--c-primary);margin-bottom:14px;display:block;}
.quote-card p{font-size:15px;line-height:1.8;color:var(--c-text);margin-bottom:20px;}
.quote-person{display:flex;align-items:center;gap:12px;border-top:1px solid var(--c-line);padding-top:16px;}
.quote-avatar{
  width:38px;height:38px;border-radius:50%;background:var(--c-primary-light);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex-shrink:0;
}
.quote-person .name{font-size:14.5px;font-weight:600;color:var(--c-text);}
.quote-person .role{font-size:13px;color:var(--c-text-3);}
.logo-strip{
  margin-top:44px;padding:18px 0;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:28px;justify-content:center;
}
.logo-strip span{font-size:14px;color:var(--c-text-3);letter-spacing:0;}

/* 价格 */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.price-card{
  position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:32px 28px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.price-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.price-card.featured{border:2px solid var(--c-primary);transform:translateY(-8px);box-shadow:var(--sh-2);}
.price-card.featured:hover{transform:translateY(-10px);}
.price-badge{
  position:absolute;top:-13px;left:28px;background:var(--c-accent);color:#fff;font-size:12.5px;font-weight:600;
  padding:4px 12px;border-radius:var(--r-badge);
}
.price-card h3{font-size:19px;margin-bottom:6px;}
.price-desc{font-size:14px;color:var(--c-text-2);margin-bottom:20px;}
.price-amount{display:flex;align-items:baseline;gap:6px;margin-bottom:22px;}
.price-amount .val{font-size:36px;font-weight:700;color:var(--c-primary-dark);line-height:1;font-variant-numeric:tabular-nums;}
.price-amount .unit{font-size:14px;color:var(--c-text-3);}
.price-list{margin-bottom:26px;}
.price-list li{display:flex;gap:10px;font-size:14.5px;color:var(--c-text-2);padding:8px 0;line-height:1.7;}
.price-list li i{color:var(--c-success);margin-top:4px;font-size:13px;}
.price-card .btn{width:100%;}
.price-note{text-align:center;font-size:13.5px;color:var(--c-text-3);margin-top:28px;}

/* FAQ */
.faq-list{max-width:860px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);margin-bottom:14px;overflow:hidden;transition:border-color var(--t),box-shadow var(--t);}
.faq-item:hover{border-color:rgba(22,85,110,.25);}
.faq-item.open{box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--c-text);background:none;border-radius:0;
}
.faq-q:hover{background:#FBFDFE;color:var(--c-primary-dark);transform:none;box-shadow:none;}
.faq-icon{position:relative;width:16px;height:16px;flex-shrink:0;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:1px;transition:transform var(--t),opacity var(--t);
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.faq-item.open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height 200ms ease-out;}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--c-text-2);}

/* 资讯（CMS） */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.news-head .section-head{margin-bottom:0;}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);color:inherit;transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(22,85,110,.25);color:inherit;}
.news-cover{aspect-ratio:16/9;overflow:hidden;background:var(--c-alt);}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease-out;}
.news-card:hover .news-cover img{transform:scale(1.03);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.news-body .badge{align-self:flex-start;margin-bottom:12px;}
.news-body h3{
  font-size:17px;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  font-size:14.5px;line-height:1.75;color:var(--c-text-2);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);
  border-top:1px solid var(--c-line);padding-top:14px;
}
.empty-state{
  text-align:center;padding:56px 24px;background:#fff;border:1px dashed var(--c-line);border-radius:var(--r-card);
}
.empty-illu{
  width:64px;height:64px;margin:0 auto 18px;border-radius:16px;background:var(--c-alt);
  display:flex;align-items:center;justify-content:center;color:var(--c-text-3);font-size:24px;
}
.empty-state p{font-size:15px;color:var(--c-text-2);margin-bottom:18px;}

/* CTA 通栏 */
.cta-band{
  background:var(--c-primary);border-radius:16px;padding:56px;position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  border:28px solid rgba(255,255,255,.07);
}
.cta-band .cta-copy{position:relative;z-index:1;max-width:640px;}
.cta-band h2{color:#fff;margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.82);font-size:16px;margin:0;}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap;}

/* 表单（页脚订阅） */
.form-row{display:flex;gap:10px;flex-wrap:wrap;}
.form-row input{flex:1;min-width:180px;}
.form-hint{font-size:13px;color:var(--c-text-3);margin-top:10px;}

/* 页脚 */
.site-footer{background:var(--c-primary-dark);color:rgba(255,255,255,.72);padding:64px 0 0;}
.footer-update{
  display:flex;align-items:center;gap:10px;font-size:13.5px;color:rgba(255,255,255,.66);
  border-bottom:1px solid rgba(255,255,255,.12);padding-bottom:20px;margin-bottom:44px;flex-wrap:wrap;
}
.footer-update i{color:var(--c-accent);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:18px;font-weight:600;}
.site-footer p{color:rgba(255,255,255,.66);font-size:14px;line-height:1.8;}
.site-footer a{color:rgba(255,255,255,.72);font-size:14.5px;}
.site-footer a:hover{color:#fff;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);}
.footer-brand .brand-text{color:#fff;}
.footer-links li{margin-bottom:12px;}
.footer-contact li{font-size:14px;margin-bottom:12px;color:rgba(255,255,255,.72);}
.footer-contact li b{color:#fff;font-weight:600;}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom .disclaimer{color:rgba(255,255,255,.45);font-size:12.5px;}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--c-accent);color:#fff;font-size:15px;font-weight:600;
  padding:14px 22px;border-radius:999px;box-shadow:var(--sh-3);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity 240ms ease-out,transform 240ms ease-out,visibility 240ms ease-out,background-color var(--t);
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:#c9762f;color:#fff;}

/* 响应式 */
@media (max-width:1199px){
  .main-nav{gap:20px;}
  .command-search{width:200px;}
  .hero-grid{gap:40px;}
  .nav-quick{display:none;}
}
@media (max-width:1023px){
  .section{padding:72px 0;}
  .main-nav{display:none;}
  .command-search{display:none;}
  .nav-toggle{display:flex;}
  .nav-wrap{height:56px;gap:16px;}
  .hero{padding:56px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-card{max-width:none;}
  .hero-float-card{left:16px;bottom:16px;}
  .feature-grid{grid-template-columns:1fr;}
  .demo-grid{grid-template-columns:1fr;gap:32px;}
  .metrics{grid-template-columns:repeat(2,1fr);gap:28px;margin-bottom:40px;}
  .quote-grid{grid-template-columns:1fr 1fr;}
  .price-grid{grid-template-columns:1fr;}
  .price-card.featured{transform:none;}
  .price-card.featured:hover{transform:translateY(-2px);}
  .news-grid{grid-template-columns:1fr 1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:44px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:640px){
  .section{padding:56px 0;}
  .container{padding-left:20px;padding-right:20px;}
  .column,.columns{padding-left:10px;padding-right:10px;}
  h2{font-size:24px;}
  .hero-sub{font-size:16px;}
  .trust-row{gap:14px;}
  .metrics{grid-template-columns:1fr 1fr;gap:20px;}
  .metric .num{font-size:32px;}
  .quote-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px 24px;border-radius:14px;}
  .cta-band::after{display:none;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;justify-content:center;
    padding:15px 20px calc(15px + env(safe-area-inset-bottom));
  }
  .hero-float-card{position:static;margin-top:-46px;width:calc(100% - 32px);margin-left:16px;}
  .hero-visual::after{display:none;}
  .faq-q{padding:16px 18px;font-size:15px;}
  .faq-a-inner{padding:0 18px 18px;}
  .window-bar{padding:10px 12px;}
}

/* roulang page: article */
:root{
  --primary:#16556E;
  --primary-deep:#0E3E51;
  --primary-light:#E7F1F5;
  --amber:#E08A3C;
  --green:#2E9E7A;
  --bg:#F6F8F9;
  --bg-alt:#EDF3F5;
  --card:#FFFFFF;
  --text:#10232B;
  --text-2:#566A74;
  --text-3:#8A9AA2;
  --line:#E1E8EB;
  --r-xs:6px;
  --r-sm:8px;
  --r-md:10px;
  --r-lg:12px;
  --r-xl:16px;
  --shadow-1:0 1px 2px rgba(16,35,43,.06), 0 6px 16px rgba(16,35,43,.05);
  --shadow-2:0 8px 24px rgba(16,35,43,.10);
  --shadow-3:0 10px 30px rgba(16,35,43,.16);
  --t:180ms ease-out;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t);}
a:hover{color:var(--primary);}
p{margin:0 0 18px;color:var(--text-2);}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;letter-spacing:0;}
h1{font-size:clamp(30px,4vw,46px);line-height:1.25;}
h2{font-size:30px;line-height:1.35;}
h3{font-size:21px;line-height:1.45;font-weight:600;}
h4{font-size:17px;line-height:1.5;font-weight:600;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;color:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 40px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;transition:all var(--t);white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-deep);}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-block{width:100%;}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:15px;}
.btn-text:hover{text-decoration:underline;color:var(--primary-deep);}
.badge{
  display:inline-block;background:var(--primary-light);color:var(--primary);
  font-size:13px;line-height:1.4;padding:4px 10px;border-radius:var(--r-xs);font-weight:600;
}
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.header-inner{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:10px;
  background:var(--primary);color:#fff;font-weight:700;font-size:15px;
}
.brand-divider{width:1px;height:20px;background:var(--line);}
.brand-text{font-size:15px;font-weight:600;color:var(--text);white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:8px;}
.main-nav a{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.main-nav a:hover{color:var(--primary);}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1);}
.main-nav a.active{color:var(--primary);font-weight:600;}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;width:236px;height:38px;padding:0 12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);transition:all var(--t);
}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(22,85,110,.14);}
.nav-search i{color:var(--text-3);font-size:13px;}
.nav-search input{border:0;outline:none;background:transparent;width:100%;font-size:14px;color:var(--text);}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search kbd{
  font-size:11px;color:var(--text-3);border:1px solid var(--line);border-radius:4px;
  padding:1px 5px;font-family:inherit;white-space:nowrap;
}
.nav-quick{font-size:14px;color:var(--text-2);white-space:nowrap;}
.nav-toggle{display:none;flex-direction:column;gap:4px;padding:8px;margin-left:auto;}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--text);border-radius:2px;transition:all var(--t);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-drawer{
  position:fixed;left:0;right:0;top:56px;bottom:0;z-index:110;
  background:#fff;border-top:1px solid var(--line);
  padding:20px 0 32px;overflow-y:auto;
  transform:translateY(-8px);opacity:0;visibility:hidden;transition:all var(--t);
}
.mobile-drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;}
.drawer-search{width:100%;margin-bottom:18px;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  padding:14px 0;border-bottom:1px solid var(--line);font-size:16px;color:var(--text);
}
.drawer-nav a.active{color:var(--primary);font-weight:600;}
.drawer-cta{margin-top:22px;}
.article-hero{
  position:relative;padding:36px 0 34px;
  background:linear-gradient(180deg,rgba(246,248,249,.93),rgba(246,248,249,.99)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px;}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:#B9C6CC;}
.breadcrumb .current{color:var(--text-2);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-head{max-width:820px;}
.article-head .badge{margin-bottom:14px;}
.article-head h1{margin-bottom:16px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--text-3);}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:#C4D0D6;display:inline-block;}
.article-main{padding:56px 0 72px;}
.article-layout{display:flex;flex-wrap:wrap;align-items:flex-start;}
.article-layout > .column{padding-left:16px;padding-right:16px;}
.article-cover{margin:0 0 28px;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-1);}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.article-body{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:40px 44px;box-shadow:var(--shadow-1);
  font-size:17px;line-height:1.9;color:var(--text-2);
}
.article-body p{margin:0 0 20px;font-size:17px;line-height:1.9;color:var(--text-2);}
.article-body h2{
  position:relative;font-size:26px;line-height:1.4;margin:40px 0 18px;padding-left:16px;color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--primary);
}
.article-body h3{font-size:21px;margin:28px 0 14px;color:var(--text);}
.article-body h4{font-size:18px;margin:22px 0 12px;color:var(--text);}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--primary-deep);}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:0;}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:10px;color:var(--text-2);}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:13px;width:7px;height:7px;border-radius:2px;background:var(--primary);
}
.article-body ol{counter-reset:li;}
.article-body ol li{position:relative;padding-left:28px;margin-bottom:10px;counter-increment:li;color:var(--text-2);}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:5px;width:20px;height:20px;border-radius:50%;
  border:1px solid var(--primary);color:var(--primary);font-size:12px;line-height:18px;text-align:center;font-weight:600;
}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:#F2F7F9;border-left:3px solid var(--primary);
  border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-md);margin:20px 0;width:100%;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px;}
.article-body code{
  font-family:"SFMono-Regular",Consolas,Menlo,monospace;font-size:14px;
  background:#EEF3F5;border-radius:4px;padding:2px 6px;color:var(--primary-deep);
}
.article-body pre{
  background:#F2F7F9;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:16px 18px;overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;padding:0;}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:var(--primary-light);color:var(--primary-deep);font-weight:600;}
.article-body tbody tr:nth-child(even){background:#FAFCFD;}
.article-wrap-table{overflow-x:auto;}
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin:32px 0 0;}
.article-tags .tag{
  background:var(--bg-alt);color:var(--text-2);font-size:13px;
  padding:5px 12px;border-radius:999px;border:1px solid var(--line);
}
.article-tags .tag:hover{background:var(--primary-light);color:var(--primary);border-color:rgba(22,85,110,.2);}
.article-return{display:flex;justify-content:center;margin-top:36px;}
.empty-state{
  background:var(--card);border:1px dashed var(--line);border-radius:var(--r-lg);
  padding:64px 32px;text-align:center;box-shadow:var(--shadow-1);
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:14px;
  background:var(--primary-light);color:var(--primary);font-size:22px;
  display:flex;align-items:center;justify-content:center;
}
.empty-state h3{margin-bottom:10px;}
.empty-state p{max-width:420px;margin:0 auto 22px;}
.side-col{position:relative;}
.side-sticky{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px 22px 24px;box-shadow:var(--shadow-1);
}
.side-card h4{
  font-size:15px;font-weight:600;color:var(--text);margin-bottom:14px;
  padding-bottom:12px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px;
}
.side-card h4 i{color:var(--primary);font-size:13px;}
.toc-list{display:flex;flex-direction:column;gap:2px;counter-reset:toc;}
.toc-list li a{
  display:block;font-size:14px;color:var(--text-2);padding:7px 10px;border-radius:var(--r-xs);
  border-left:2px solid transparent;line-height:1.5;
}
.toc-list li a:hover{background:var(--primary-light);color:var(--primary);border-left-color:var(--primary);}
.toc-list li.is-sub a{padding-left:22px;font-size:13.5px;color:var(--text-3);}
.toc-empty{font-size:13px;color:var(--text-3);margin:0;line-height:1.7;}
.side-links{display:flex;flex-direction:column;gap:12px;}
.side-links a{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text-2);line-height:1.6;}
.side-links a i{color:var(--primary);margin-top:5px;font-size:11px;}
.side-links a:hover{color:var(--primary);}
.cta-card{
  background:var(--primary);color:#fff;border:1px solid var(--primary-deep);
  border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow-2);
}
.cta-card h4{color:#fff;font-size:17px;margin-bottom:8px;border:0;padding:0;}
.cta-card p{color:rgba(255,255,255,.82);font-size:14px;margin:0 0 16px;line-height:1.7;}
.cta-card .btn-ghost{background:#fff;border-color:#fff;color:var(--primary);width:100%;}
.cta-card .btn-ghost:hover{background:var(--primary-light);}
.section{padding:72px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{max-width:680px;margin-bottom:40px;}
.section-head h2{margin-bottom:12px;}
.section-head p{margin:0;font-size:16px;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-1);transition:all var(--t);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(22,85,110,.2);}
.card-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt);}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease-out;}
.card:hover .card-thumb img{transform:scale(1.03);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body .badge{align-self:flex-start;}
.card-title{font-size:18px;font-weight:600;line-height:1.5;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-text{font-size:14px;color:var(--text-2);line-height:1.75;margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-top:auto;padding-top:6px;}
.cta-band{
  background:var(--primary);border-radius:var(--r-xl);padding:56px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:40px;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:32px;
  background:rgba(255,255,255,.08);transform:rotate(18deg);
}
.cta-band h2{color:#fff;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.82);margin:0;max-width:520px;}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;}
.cta-band .btn-ghost{background:transparent;border-color:rgba(255,255,255,.7);color:#fff;}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;}
.cta-band .btn-primary{background:#fff;color:var(--primary);}
.cta-band .btn-primary:hover{background:var(--primary-light);color:var(--primary-deep);}
.site-footer{background:var(--primary-deep);color:rgba(255,255,255,.76);padding:56px 0 28px;margin-top:8px;}
.footer-update{
  display:flex;align-items:center;gap:10px;font-size:13.5px;color:rgba(255,255,255,.7);
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-sm);padding:10px 16px;margin-bottom:40px;
}
.footer-update i{color:var(--amber);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:#fff;color:var(--primary-deep);}
.footer-brand .brand-text{color:#fff;font-size:15px;font-weight:600;}
.site-footer p{color:rgba(255,255,255,.66);font-size:14px;line-height:1.8;margin:0;max-width:320px;}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:#fff;}
.footer-contact{display:flex;flex-direction:column;gap:11px;font-size:14px;color:rgba(255,255,255,.7);}
.footer-contact b{color:#fff;font-weight:600;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(255,255,255,.14);margin-top:40px;padding-top:22px;font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom .disclaimer{color:rgba(255,255,255,.5);}
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:130;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--amber);color:#fff;font-weight:600;font-size:15px;
  padding:13px 22px;border-radius:999px;box-shadow:var(--shadow-3);
  opacity:0;visibility:hidden;transform:translateY(10px);transition:all var(--t);
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:#C9752C;color:#fff;}
@media screen and (max-width:1199px){
  .container{padding:0 32px;}
  .nav-search{width:180px;}
  .main-nav{gap:20px;}
}
@media screen and (max-width:1023px){
  .main-nav,.nav-quick,.nav-right .nav-search{display:none;}
  .nav-toggle{display:flex;}
  .nav-right{margin-left:auto;gap:10px;}
  .header-inner{height:56px;}
  .mobile-drawer{top:56px;}
  .article-main{padding:40px 0 56px;}
  .article-body{padding:30px 26px;font-size:16px;}
  .article-body p{font-size:16px;}
  .side-sticky{position:static;margin-top:28px;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
  .cta-band{padding:40px;flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:639px){
  .container{padding:0 20px;}
  body{font-size:15.5px;}
  h2{font-size:23px;}
  .brand-text{font-size:14px;}
  .article-hero{padding:26px 0 24px;}
  .article-body{padding:22px 18px;border-radius:var(--r-md);}
  .article-body h2{font-size:21px;margin-top:32px;}
  .article-body h3{font-size:18px;}
  .section{padding:56px 0;}
  .related-grid{grid-template-columns:1fr;gap:16px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-band{padding:32px 24px;border-radius:var(--r-lg);}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .float-cta{
    left:16px;right:16px;bottom:0;justify-content:center;border-radius:0;
    padding:14px 18px calc(14px + env(safe-area-inset-bottom));
  }
  .breadcrumb .current{max-width:200px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#16556E;
  --c-primary-dark:#0E3E51;
  --c-primary-light:#E7F1F5;
  --c-amber:#E08A3C;
  --c-green:#2E9E7A;
  --c-bg:#F6F8F9;
  --c-card:#FFFFFF;
  --c-alt:#EDF3F5;
  --c-text:#10232B;
  --c-muted:#566A74;
  --c-weak:#8A9AA2;
  --c-line:#E1E8EB;
  --r-card:12px;
  --r-btn:8px;
  --r-input:8px;
  --r-badge:6px;
  --r-img:10px;
  --sh-1:0 1px 2px rgba(16,35,43,.06), 0 6px 16px rgba(16,35,43,.05);
  --sh-2:0 8px 24px rgba(16,35,43,.10);
  --sh-3:0 10px 30px rgba(16,35,43,.16);
  --t:180ms ease-out;
  --nav-h:64px;
  --sec-pad:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -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 var(--t);}
a:hover{color:var(--c-primary-dark);}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-text);}
h1{font-size:clamp(30px,4vw,46px);line-height:1.25;font-weight:700;}
h2{font-size:30px;line-height:1.35;}
h3{font-size:21px;line-height:1.45;font-weight:600;}
h4{font-size:16px;line-height:1.5;font-weight:600;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.row{max-width:1200px;padding-left:25px;padding-right:25px;}
.row .row{padding-left:0;padding-right:0;}
.column{padding-left:15px;padding-right:15px;}
input,textarea{font-family:inherit;}
::selection{background:var(--c-primary-light);color:var(--c-primary-dark);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--t);
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.nav-inner{
  max-width:1200px;
  margin:0 auto;
  padding:0 25px;
  height:var(--nav-h);
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  border-radius:10px;
  background:var(--c-primary);
  color:#fff;
  font-size:15px;
  font-weight:700;
  letter-spacing:.5px;
}
.brand-text{font-size:16px;font-weight:700;color:var(--c-text);white-space:nowrap;}
.brand-divider{width:1px;height:20px;background:var(--c-line);}
.brand-sub{font-size:13px;color:var(--c-muted);white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:8px;}
.main-nav a{
  position:relative;
  font-size:15px;
  color:var(--c-muted);
  padding:6px 0;
  white-space:nowrap;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--c-primary);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--t);
}
.main-nav a:hover{color:var(--c-primary);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--c-primary);font-weight:600;}
.main-nav a.active::after{transform:scaleX(1);}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.search-box{
  display:flex;
  align-items:center;
  gap:8px;
  width:236px;
  height:38px;
  padding:0 10px 0 12px;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-input);
  transition:border-color var(--t),box-shadow var(--t);
}
.search-box:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(22,85,110,.12);}
.search-box i{color:var(--c-weak);font-size:13px;}
.search-box input{
  flex:1;
  min-width:0;
  border:0;
  outline:none;
  background:transparent;
  font-size:14px;
  color:var(--c-text);
}
.search-box input::placeholder{color:var(--c-weak);}
.kbd{
  font-size:11px;
  color:var(--c-muted);
  background:var(--c-alt);
  border:1px solid var(--c-line);
  border-radius:4px;
  padding:1px 5px;
  white-space:nowrap;
}
.nav-quick{font-size:14px;color:var(--c-muted);white-space:nowrap;}
.nav-quick:hover{color:var(--c-primary);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  padding:13px 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:background var(--t),color var(--t),border-color var(--t),box-shadow var(--t),transform var(--t);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-light);color:var(--c-primary-dark);}
.btn-light{background:#fff;color:var(--c-primary-dark);}
.btn-light:hover{background:var(--c-primary-light);color:var(--c-primary-dark);transform:translateY(-1px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;}
.btn-text{background:none;padding:0;color:var(--c-primary);font-weight:600;}
.btn-text:hover{color:var(--c-primary-dark);text-decoration:underline;}
.btn:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.btn-sm{padding:10px 18px;font-size:14px;}
.nav-cta{padding:11px 20px;font-size:14px;}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  align-items:center;
  justify-content:center;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  color:var(--c-text);
  font-size:16px;
  cursor:pointer;
  transition:border-color var(--t),color var(--t);
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:120;
  background:#fff;
  padding:18px 20px calc(96px + env(safe-area-inset-bottom));
  overflow-y:auto;
  transform:translateY(-10px);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--t),transform var(--t),visibility var(--t);
}
.mobile-drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:40px;height:40px;
  border:1px solid var(--c-line);
  background:#fff;
  border-radius:var(--r-btn);
  color:var(--c-text);
  font-size:16px;
  cursor:pointer;
}
.drawer-search{
  display:flex;align-items:center;gap:8px;
  height:44px;padding:0 12px;
  border:1px solid var(--c-line);
  border-radius:var(--r-input);
  margin-bottom:22px;
}
.drawer-search input{flex:1;border:0;outline:none;font-size:15px;background:transparent;}
.drawer-title{font-size:13px;color:var(--c-weak);margin-bottom:10px;}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:24px;}
.drawer-nav a{
  padding:13px 4px;
  font-size:16px;
  color:var(--c-text);
  border-bottom:1px solid var(--c-line);
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.drawer-nav a.active{color:var(--c-primary);font-weight:600;}
.drawer-nav a i{color:var(--c-weak);font-size:12px;}
.drawer-cta{width:100%;}

/* ============ 面包屑 ============ */
.breadcrumb-bar{background:#fff;border-bottom:1px solid var(--c-line);}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--c-muted);
  padding:14px 0;
}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:var(--c-line);}
.breadcrumb .current{color:var(--c-text);}

/* ============ 通用板块 ============ */
.section{padding:var(--sec-pad) 0;}
.section-alt{background:var(--c-alt);}
.section-white{background:#fff;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  color:var(--c-primary);
  background:var(--c-primary-light);
  border-radius:var(--r-badge);
  padding:4px 10px;
  margin-bottom:14px;
}
.section-head h2{position:relative;padding-left:16px;margin-bottom:14px;}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:8px;bottom:8px;
  width:4px;
  border-radius:3px;
  background:var(--c-primary);
}
.section-head.center h2{padding-left:0;}
.section-head.center h2::before{display:none;}
.section-head p{color:var(--c-muted);font-size:16px;margin:0;}
.lead{font-size:17px;line-height:1.9;color:var(--c-muted);}

/* ============ Hero ============ */
.hero{
  position:relative;
  background-color:#F2F6F8;
  background-image:
    linear-gradient(115deg, rgba(246,248,249,.96) 0%, rgba(246,248,249,.86) 52%, rgba(231,241,245,.72) 100%),
    url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center right;
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(22,85,110,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(22,85,110,.035) 1px,transparent 1px);
  background-size:44px 44px;
  pointer-events:none;
}
.hero-inner{position:relative;padding:72px 0 84px;}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:56px;align-items:center;}
.hero h1{margin-bottom:18px;max-width:15em;}
.hero h1 .hl{color:var(--c-primary-dark);}
.hero-sub{
  font-size:18px;
  line-height:1.7;
  color:var(--c-muted);
  max-width:34em;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:22px;}
.hero-trust li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-muted);}
.hero-trust i{color:var(--c-green);font-size:13px;}
.hero-visual{position:relative;}
.hero-figure{
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-2);
  border:1px solid var(--c-line);
  background:#fff;
}
.hero-figure img{width:100%;height:auto;aspect-ratio:16/10;object-fit:cover;border-radius:0;}
.hero-info-card{
  position:relative;
  margin-top:-46px;
  margin-left:26px;
  margin-right:26px;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-2);
  padding:20px 22px;
}
.hero-info-card h2{font-size:15px;font-weight:600;color:var(--c-primary-dark);margin-bottom:12px;padding:0;}
.hero-info-card h2::before{display:none;}
.hero-info-list li{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
  padding:9px 0;
  border-bottom:1px dashed var(--c-line);
  font-size:14px;
}
.hero-info-list li:last-child{border-bottom:0;padding-bottom:0;}
.hero-info-list span:first-child{color:var(--c-muted);}
.hero-info-list span:last-child{color:var(--c-text);font-weight:600;}

/* ============ 数据条 ============ */
.stats-band{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
  padding:34px 0;
}
.stat-item{text-align:left;}
.stat-num{
  font-size:34px;
  font-weight:700;
  line-height:1.15;
  color:var(--c-primary-dark);
  font-variant-numeric:tabular-nums;
}
.stat-num .unit{font-size:16px;font-weight:600;margin-left:2px;color:var(--c-muted);}
.stat-label{font-size:14px;color:var(--c-muted);margin-top:6px;}

/* ============ 图文交错 ============ */
.zigzag{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:56px;align-items:center;padding:0 25px;}
.zigzag + .zigzag{margin-top:72px;}
.zigzag-media img{
  width:100%;
  height:auto;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-card);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
}
.zigzag-copy .step-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--c-primary);
  background:var(--c-primary-light);
  border-radius:var(--r-badge);
  padding:4px 10px;
  margin-bottom:14px;
}
.zigzag-copy h3{font-size:24px;margin-bottom:14px;}
.zigzag-copy p{color:var(--c-muted);}
.point-list{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
.point-list li{display:flex;gap:10px;font-size:15px;color:var(--c-text);line-height:1.7;}
.point-list i{color:var(--c-primary);font-size:13px;margin-top:7px;flex-shrink:0;}
.zigzag.reverse .zigzag-media{order:2;}

/* ============ 步骤流程 ============ */
.step-flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.step-card{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  height:100%;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(22,85,110,.25);}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  border-radius:50%;
  border:1.5px solid var(--c-primary);
  color:var(--c-primary);
  font-weight:700;
  font-size:15px;
  margin-bottom:16px;
  background:#fff;
}
.step-card h3{font-size:18px;margin-bottom:10px;}
.step-card p{font-size:15px;color:var(--c-muted);margin:0;}

/* ============ 卡片网格 ============ */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.card-grid.three{grid-template-columns:repeat(3,minmax(0,1fr));}
.info-card{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:28px 26px;
  height:100%;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(22,85,110,.25);}
.card-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border-radius:10px;
  background:var(--c-primary-light);
  color:var(--c-primary);
  font-size:18px;
  margin-bottom:16px;
}
.info-card h3{font-size:19px;margin-bottom:10px;}
.info-card p{font-size:15px;color:var(--c-muted);}
.mini-list{margin-top:14px;display:flex;flex-direction:column;gap:9px;}
.mini-list li{display:flex;gap:9px;font-size:14px;color:var(--c-muted);line-height:1.65;}
.mini-list li::before{
  content:"";
  width:6px;height:6px;
  border-radius:2px;
  background:var(--c-primary);
  flex-shrink:0;
  margin-top:9px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  font-size:13px;
  color:var(--c-primary);
  background:var(--c-primary-light);
  border-radius:var(--r-badge);
  padding:4px 10px;
}
.badge-soft{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  color:var(--c-primary);
  background:var(--c-primary-light);
  border-radius:var(--r-badge);
  padding:4px 10px;
}
.dot-ok{width:7px;height:7px;border-radius:50%;background:var(--c-green);display:inline-block;}
.dot-warn{width:7px;height:7px;border-radius:50%;background:var(--c-amber);display:inline-block;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item:hover{border-color:rgba(22,85,110,.28);box-shadow:var(--sh-2);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 56px 20px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
  position:relative;
  transition:color var(--t);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  position:absolute;
  right:22px;
  top:50%;
  transform:translateY(-50%);
  font-size:20px;
  font-weight:400;
  color:var(--c-primary);
  line-height:1;
  transition:transform var(--t);
}
.faq-item[open] summary{color:var(--c-primary-dark);}
.faq-item[open] summary::after{content:"−";}
.faq-item summary:hover{color:var(--c-primary);}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--c-muted);}

/* ============ CTA 通栏 ============ */
.cta-band{padding:0 0 var(--sec-pad);}
.cta-box{
  position:relative;
  background:var(--c-primary);
  border-radius:16px;
  padding:56px;
  overflow:hidden;
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,.6fr);
  gap:32px;
  align-items:center;
}
.cta-box::after{
  content:"";
  position:absolute;
  right:-70px;
  top:-70px;
  width:280px;
  height:280px;
  border-radius:50%;
  border:26px solid rgba(255,255,255,.07);
  pointer-events:none;
}
.cta-box h2{color:#fff;font-size:28px;padding:0;margin-bottom:12px;}
.cta-box h2::before{display:none;}
.cta-box p{color:rgba(255,255,255,.82);font-size:16px;margin:0;max-width:38em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;position:relative;z-index:1;}
.cta-note{margin-top:16px;font-size:13px;color:rgba(255,255,255,.68);}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:70;
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:var(--c-amber);
  color:#fff;
  font-size:15px;
  font-weight:600;
  padding:14px 24px;
  border-radius:999px;
  box-shadow:var(--sh-3);
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity var(--t),transform var(--t),visibility var(--t),background var(--t);
}
.float-cta:hover{background:#C9762C;color:#fff;transform:translateY(-1px);}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta.is-hidden{opacity:0;visibility:hidden;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-primary-dark);
  color:rgba(255,255,255,.78);
  padding:64px 0 28px;
  font-size:14px;
}
.footer-update{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:rgba(255,255,255,.66);
  padding-bottom:22px;
  border-bottom:1px solid rgba(255,255,255,.12);
  margin-bottom:44px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#fff;}
.footer-brand .brand-text{color:#fff;}
.site-footer p{color:rgba(255,255,255,.7);line-height:1.8;max-width:26em;font-size:14px;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-links a:hover{color:#fff;}
.footer-contact{display:flex;flex-direction:column;gap:11px;color:rgba(255,255,255,.72);font-size:14px;}
.footer-contact b{color:#fff;font-weight:600;}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  align-items:center;
  font-size:13px;
  color:rgba(255,255,255,.6);
}
.disclaimer{color:rgba(255,255,255,.5);max-width:52em;}

/* ============ Foundation 覆盖 ============ */
a.button,.button,button.button{
  background:var(--c-primary);
  color:#fff;
  border-radius:var(--r-btn);
  font-family:inherit;
  font-weight:600;
  transition:background var(--t);
}
a.button:hover,.button:hover{background:var(--c-primary-dark);color:#fff;}
.accordion{border:0;background:transparent;box-shadow:none;}
.accordion-title{border:0;font-family:inherit;font-size:16px;font-weight:600;color:var(--c-text);background:#fff;}
.accordion-content{border:0;background:#fff;font-family:inherit;color:var(--c-muted);}
table{border-collapse:collapse;width:100%;font-family:inherit;border:0;background:transparent;}
label{font-size:14px;color:var(--c-muted);font-family:inherit;}

/* ============ 响应式 ============ */
@media screen and (max-width:1199px){
  :root{--sec-pad:88px;}
  .nav-inner{padding:0 25px;}
  .main-nav{gap:20px;}
  .search-box{width:190px;}
}
@media screen and (max-width:1023px){
  :root{--sec-pad:72px;}
  .main-nav,.search-box,.nav-quick{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero-inner{padding:56px 0 68px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero h1{max-width:none;}
  .hero-info-card{margin-left:0;margin-right:0;margin-top:20px;}
  .step-flow{grid-template-columns:repeat(2,minmax(0,1fr));}
  .card-grid.three{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stats-band{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .cta-box{grid-template-columns:1fr;padding:44px 36px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .zigzag{gap:36px;}
}
@media screen and (max-width:767px){
  .row{padding-left:5px;padding-right:5px;}
  .nav-inner{padding:0 20px;}
  .zigzag{grid-template-columns:1fr;gap:24px;padding:0 20px;}
  .zigzag + .zigzag{margin-top:52px;}
  .zigzag.reverse .zigzag-media{order:0;}
  .card-grid,.card-grid.three{grid-template-columns:1fr;}
  .step-flow{grid-template-columns:1fr;}
  h2,.section-head h2{font-size:24px;}
  .zigzag-copy h3{font-size:20px;}
  .cta-box{padding:36px 24px;}
  .cta-box h2{font-size:23px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .float-cta{
    left:0;right:0;bottom:0;
    justify-content:center;
    border-radius:0;
    padding:16px 20px calc(16px + env(safe-area-inset-bottom));
  }
  .float-cta:hover{transform:none;}
  .site-footer{padding-bottom:96px;}
}
@media screen and (max-width:519px){
  :root{--sec-pad:56px;}
  body{font-size:16px;}
  .hero-trust{gap:14px;flex-direction:column;}
  .stats-band{grid-template-columns:1fr;gap:22px;padding:28px 0;}
  .hero-actions .btn{width:100%;}
  .brand-sub{display:none;}
  .brand-divider{display:none;}
}

/* roulang page: category2 */
:root{
  --primary:#16556E;
  --primary-dark:#0E3E51;
  --primary-light:#E7F1F5;
  --accent:#E08A3C;
  --success:#2E9E7A;
  --bg:#F6F8F9;
  --surface:#FFFFFF;
  --alt:#EDF3F5;
  --text:#10232B;
  --text-2:#566A74;
  --text-3:#8A9AA2;
  --border:#E1E8EB;
  --radius-card:12px;
  --radius-btn:8px;
  --radius-badge:6px;
  --radius-img:10px;
  --shadow-1:0 1px 2px rgba(16,35,43,.06),0 6px 16px rgba(16,35,43,.05);
  --shadow-2:0 8px 24px rgba(16,35,43,.10);
  --shadow-3:0 10px 30px rgba(16,35,43,.16);
  --pad-x:20px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.8;color:var(--text);background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;height:auto}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font:inherit}
a{color:var(--primary);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--primary-dark)}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
/* Foundation 默认样式覆盖 */
body,html{font-family:inherit}
a:not(.btn):hover{text-decoration:none}
button,.button{border-radius:var(--radius-btn)}
input[type="search"],input[type="text"],input[type="password"]{box-shadow:none;border-radius:var(--radius-btn)}
::selection{background:var(--primary-light);color:var(--primary-dark)}

/* ============ 容器 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:var(--pad-x);padding-right:var(--pad-x)}
.section{padding:56px 0}
.section-alt{background:var(--alt)}
.section-white{background:var(--surface)}
.section-head{max-width:760px;margin-bottom:36px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--primary);background:var(--primary-light);border-radius:var(--radius-badge);padding:4px 10px;margin-bottom:14px}
h2{font-size:26px;line-height:1.35;font-weight:700;color:var(--text);position:relative;padding-left:14px}
h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--primary)}
.section-head.center h2{padding-left:0}
.section-head.center h2::before{display:none}
h3{font-size:20px;line-height:1.45;font-weight:600;color:var(--text)}
.lead{font-size:16px;color:var(--text-2);line-height:1.85;margin-top:14px}
.muted{color:var(--text-3);font-size:14px;line-height:1.6}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-btn);font-weight:600;line-height:1.2;transition:all .18s ease-out;white-space:nowrap;border:1px solid transparent}
.btn-primary{background:var(--primary);color:#fff;padding:12px 22px;font-size:15px}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--primary);padding:11px 21px;font-size:15px}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary-dark)}
.btn-ghost:active{background:var(--primary-light);transform:translateY(1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:15px;padding:2px 0}
.btn-text i{transition:transform .18s ease-out}
.btn-text:hover{color:var(--primary-dark);text-decoration:underline}
.btn-text:hover i{transform:translateX(3px)}

/* ============ 徽章 ============ */
.badge{display:inline-block;font-size:13px;font-weight:600;color:var(--primary);background:var(--primary-light);border-radius:var(--radius-badge);padding:4px 10px;line-height:1.5}
.badge-accent{color:#8A4B12;background:#FBEDDF}
.badge-line{background:#fff;border:1px solid var(--border);color:var(--text-2);font-weight:500}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);transition:box-shadow .18s ease-out}
.site-header.is-scrolled{box-shadow:0 4px 16px rgba(16,35,43,.07)}
.nav-wrap{display:flex;align-items:center;gap:18px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:10px;background:var(--primary);color:#fff;font-weight:700;font-size:15px}
.brand-text{font-size:16px;font-weight:600;color:var(--text);white-space:nowrap}
.brand:hover .brand-text{color:var(--primary)}
.nav-divider{width:1px;height:22px;background:var(--border);flex-shrink:0}
.main-nav{display:flex;gap:24px;align-items:center}
.main-nav a{position:relative;font-size:15px;color:var(--text-2);padding:6px 0;white-space:nowrap}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .18s ease-out}
.main-nav a:hover,.main-nav a.active{color:var(--primary)}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:16px}
.nav-search{display:flex;align-items:center;gap:8px;width:240px;height:38px;padding:0 10px;border:1px solid var(--border);border-radius:var(--radius-btn);background:#fff;color:var(--text-3);transition:border-color .18s ease-out,box-shadow .18s ease-out}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(22,85,110,.14)}
.nav-search i{font-size:13px}
.nav-search input{border:0;outline:0;flex:1;min-width:0;font-size:14px;background:transparent;color:var(--text)}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search .kbd{font-size:12px;line-height:1;padding:3px 6px;border:1px solid var(--border);border-radius:5px;color:var(--text-3);background:var(--bg)}
.nav-quick{font-size:14px;color:var(--text-2);white-space:nowrap}
.nav-quick:hover{color:var(--primary);text-decoration:underline}
.nav-toggle{display:none;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--radius-btn);border:1px solid var(--border);background:#fff;color:var(--text);font-size:17px;margin-left:auto}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary)}

/* 移动抽屉 */
.mobile-drawer{position:fixed;left:0;right:0;top:56px;bottom:0;z-index:55;background:#fff;padding:22px 20px 40px;overflow-y:auto;transform:translateY(-10px);opacity:0;visibility:hidden;transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s}
.mobile-drawer.is-open{transform:none;opacity:1;visibility:visible}
.mobile-drawer .drawer-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 12px;border:1px solid var(--border);border-radius:var(--radius-btn);color:var(--text-3);margin-bottom:22px}
.mobile-drawer .drawer-search input{border:0;outline:0;flex:1;min-width:0;font-size:15px;background:transparent;color:var(--text)}
.drawer-group-title{font-size:13px;color:var(--text-3);margin-bottom:10px}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:26px}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;font-size:16px;color:var(--text);padding:13px 4px;border-bottom:1px solid var(--border)}
.drawer-nav a.active{color:var(--primary);font-weight:600}
.drawer-nav a i{font-size:12px;color:var(--text-3)}
.drawer-cta{width:100%}

/* ============ 页面横幅 ============ */
.page-hero{position:relative;padding:52px 0 60px;border-bottom:1px solid var(--border);background-color:var(--bg);background-image:linear-gradient(180deg,rgba(246,248,249,.95) 0%,rgba(246,248,249,.90) 60%,rgba(246,248,249,.96) 100%),url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;overflow:hidden}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--primary);text-decoration:underline}
.breadcrumb .sep{color:#C6D2D8}
.page-hero h1{font-size:clamp(28px,3.6vw,40px);line-height:1.25;font-weight:700;margin-top:14px;max-width:900px}
.page-hero .hero-sub{margin-top:16px;font-size:17px;line-height:1.85;color:var(--text-2);max-width:760px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

/* ============ 数据条 ============ */
.stats-row{margin:0 -12px}
.stats-row>.column{padding:0 12px}
.stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);padding:20px 22px;box-shadow:var(--shadow-1);transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;height:100%;margin-bottom:16px}
.stat:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:rgba(22,85,110,.25)}
.stat b{display:block;font-size:32px;line-height:1.1;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums}
.stat b em{font-size:15px;font-style:normal;font-weight:600;color:var(--text-2);margin-left:4px}
.stat span{display:block;margin-top:8px;font-size:14px;color:var(--text-2)}

/* ============ 时间线 ============ */
.timeline{position:relative;max-width:940px;margin:0 auto;padding-top:6px}
.timeline::before{content:"";position:absolute;left:23px;top:16px;bottom:26px;width:2px;background:#D5E3EA}
.tl-item{position:relative;padding-left:76px;margin-bottom:26px}
.tl-item:last-child{margin-bottom:0}
.tl-num{position:absolute;left:0;top:2px;width:48px;height:48px;border-radius:50%;background:#fff;border:2px solid var(--primary);color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;box-shadow:var(--shadow-1);font-variant-numeric:tabular-nums}
.tl-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);padding:22px 24px;box-shadow:var(--shadow-1);transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out}
.tl-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:rgba(22,85,110,.25)}
.tl-card h3{margin-bottom:10px}
.tl-card p{font-size:15px;color:var(--text-2);line-height:1.8}
.tl-points{margin-top:14px;display:flex;flex-direction:column;gap:9px}
.tl-points li{position:relative;padding-left:18px;font-size:15px;line-height:1.75;color:var(--text-2)}
.tl-points li::before{content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:2px;background:var(--primary);opacity:.75}
.check-list{display:flex;flex-direction:column;gap:10px;margin-top:16px}
.check-list li{position:relative;padding-left:26px;font-size:15px;line-height:1.75;color:var(--text-2)}
.check-list li::before{content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;top:1px;font-size:13px;color:var(--success)}

/* ============ 图文区 ============ */
.split-row{margin:0 -14px;align-items:center}
.split-row>.column{padding:0 14px;margin-bottom:24px}
.split-media{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow-1);background:#fff}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.split-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(22,85,110,.04),rgba(22,85,110,.12));pointer-events:none}
.split-body h3{font-size:22px;margin-bottom:12px}
.split-body p{font-size:16px;line-height:1.85;color:var(--text-2);margin-bottom:14px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px}
.tag{font-size:13px;color:var(--text-2);background:var(--alt);border-radius:var(--radius-badge);padding:4px 10px}

/* ============ 注意项 ============ */
.note-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.note{display:flex;gap:14px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);padding:20px;box-shadow:var(--shadow-1);transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out}
.note:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:rgba(22,85,110,.25)}
.note-icon{flex-shrink:0;width:38px;height:38px;border-radius:10px;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:15px}
.note h3{font-size:17px;margin-bottom:6px}
.note p{font-size:15px;line-height:1.75;color:var(--text-2)}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);margin-bottom:12px;box-shadow:var(--shadow-1);overflow:hidden;transition:border-color .18s ease-out,box-shadow .18s ease-out}
.faq-item.is-open{border-color:rgba(22,85,110,.35);box-shadow:var(--shadow-2)}
.faq-q{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;width:100%;text-align:left;padding:18px 20px;font-size:16px;font-weight:600;color:var(--text);line-height:1.6}
.faq-q:hover{color:var(--primary)}
.faq-icon{flex-shrink:0;width:22px;height:22px;position:relative;margin-top:2px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out}
.faq-icon::before{left:3px;right:3px;top:10px;height:2px}
.faq-icon::after{top:3px;bottom:3px;left:10px;width:2px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease-out}
.faq-a-inner{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ============ CTA ============ */
.cta-band{background:var(--primary);border-radius:16px;padding:48px 36px;color:#fff;position:relative;overflow:hidden;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px}
.cta-band h2{color:#fff;padding-left:0;font-size:26px}
.cta-band h2::before{display:none}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.86);font-size:16px;line-height:1.8;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-band .btn-primary{background:#fff;color:var(--primary)}
.cta-band .btn-primary:hover{background:var(--primary-light);color:var(--primary-dark)}
.cta-band .btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);padding:11px 21px;font-size:15px}
.cta-band .btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}
.cta-art{position:absolute;right:-40px;bottom:-60px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.07);pointer-events:none}
.cta-art::after{content:"";position:absolute;left:-70px;top:-70px;width:150px;height:150px;border-radius:32px;border:2px solid rgba(255,255,255,.14);transform:rotate(18deg)}

/* ============ 页脚 ============ */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.78);margin-top:56px;padding:40px 0 24px;font-size:14px}
.footer-update{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7);background:rgba(255,255,255,.07);border-radius:var(--radius-btn);padding:10px 14px;margin-bottom:32px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);color:#fff}
.footer-brand .brand-text{color:#fff;font-weight:600;font-size:15px}
.site-footer p{line-height:1.8;color:rgba(255,255,255,.7)}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px}
.footer-links,.footer-contact{display:flex;flex-direction:column;gap:10px}
.footer-links a,.footer-contact li{color:rgba(255,255,255,.76);font-size:14px;line-height:1.7}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-contact b{color:#fff;font-weight:600}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;padding-top:20px;font-size:13px;color:rgba(255,255,255,.62)}
.footer-bottom .disclaimer{max-width:620px;line-height:1.7}

/* ============ 浮动 CTA ============ */
.float-cta{position:fixed;right:24px;bottom:24px;z-index:70;display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:#fff;font-weight:600;font-size:15px;padding:13px 22px;border-radius:999px;box-shadow:var(--shadow-3);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .22s ease-out,transform .22s ease-out,visibility .22s,background .18s ease-out}
.float-cta.is-visible{opacity:1;visibility:visible;transform:none}
.float-cta:hover{background:#C9772C;color:#fff;transform:translateY(-2px)}
.float-cta.is-hidden{opacity:0;visibility:hidden;transform:translateY(14px)}

/* ============ 响应式 ============ */
@media (min-width:640px){
  :root{--pad-x:32px}
  .section{padding:72px 0}
  h2{font-size:28px}
  .page-hero{padding:60px 0 70px}
}
@media (min-width:1024px){
  :root{--pad-x:40px}
  .section{padding:96px 0}
  h2{font-size:30px}
  .page-hero{padding:64px 0 76px}
  .nav-wrap{height:64px}
}
@media (max-width:1023px){
  .main-nav,.nav-search,.nav-quick,.nav-cta{display:none}
  .nav-divider{display:none}
  .nav-toggle{display:inline-flex}
  .nav-wrap{height:56px}
  .site-header{position:sticky}
  .mobile-drawer{top:56px}
}
@media (max-width:767px){
  .note-grid{grid-template-columns:minmax(0,1fr)}
  .cta-band{padding:34px 22px;border-radius:14px}
  .cta-band h2{font-size:22px}
  .tl-item{padding-left:62px}
  .tl-num{width:42px;height:42px;font-size:14px}
  .timeline::before{left:20px}
  .tl-card{padding:18px 18px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .float-cta{left:0;right:0;bottom:0;border-radius:0;justify-content:center;padding:14px 20px calc(14px + env(safe-area-inset-bottom));font-size:15px}
  .float-cta.is-visible{transform:none}
}
@media (max-width:479px){
  .hero-actions .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .stat b{font-size:28px}
}

/* roulang page: category3 */
:root{
  --primary:#16556E;
  --primary-dark:#0E3E51;
  --primary-light:#E7F1F5;
  --accent:#E08A3C;
  --success:#2E9E7A;
  --bg:#F6F8F9;
  --bg-alt:#EDF3F5;
  --card:#FFFFFF;
  --text:#10232B;
  --text-2:#566A74;
  --text-3:#8A9AA2;
  --border:#E1E8EB;
  --radius-card:12px;
  --radius-btn:8px;
  --radius-input:8px;
  --radius-badge:6px;
  --radius-img:10px;
  --shadow-1:0 1px 2px rgba(16,35,43,.06),0 6px 16px rgba(16,35,43,.05);
  --shadow-2:0 8px 24px rgba(16,35,43,.10);
  --shadow-3:0 10px 30px rgba(16,35,43,.16);
  --transition:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
body.drawer-open{overflow:hidden;}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--primary);text-decoration:none;transition:color var(--transition),background-color var(--transition),border-color var(--transition);}
a:hover{color:var(--primary-dark);}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--text);letter-spacing:0;line-height:1.35;}
h1{font-size:clamp(30px,4vw,46px);line-height:1.25;font-weight:700;}
h2{font-size:clamp(24px,3vw,30px);line-height:1.35;}
h3{font-size:20px;line-height:1.45;font-weight:600;}
h4{font-size:16px;line-height:1.5;font-weight:600;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

/* ---------- 容器 ---------- */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media(min-width:640px){.container{padding:0 32px;}}
@media(min-width:1024px){.container{padding:0 40px;}}

/* ---------- 头部 / 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border);
  transition:box-shadow var(--transition);
}
.site-header.scrolled{box-shadow:0 1px 2px rgba(16,35,43,.06),0 6px 16px rgba(16,35,43,.05);}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:64px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;height:36px;
  border-radius:10px;
  background:var(--primary);
  color:#fff;
  font-size:13px;
  font-weight:700;
  letter-spacing:0;
  line-height:1;
}
.brand-divider{width:1px;height:20px;background:var(--border);}
.brand-text{font-size:17px;font-weight:700;color:var(--text);white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:6px;}
.main-nav a{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--transition);
}
.main-nav a:hover{color:var(--primary);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--primary);font-weight:600;}
.main-nav a.active::after{transform:scaleX(1);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.command-search{
  display:flex;
  align-items:center;
  gap:8px;
  width:238px;
  height:38px;
  padding:0 10px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-input);
  transition:border-color var(--transition),box-shadow var(--transition);
}
.command-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(22,85,110,.14);}
.command-search i{color:var(--text-3);font-size:13px;}
.command-search input{
  flex:1;
  min-width:0;
  height:100%;
  border:0;
  outline:none;
  background:transparent;
  font-size:14px;
  color:var(--text);
}
.command-search input::placeholder{color:var(--text-3);}
.kbd{
  flex-shrink:0;
  font-size:11px;
  line-height:1.5;
  color:var(--text-3);
  background:var(--bg-alt);
  border:1px solid var(--border);
  border-radius:4px;
  padding:1px 5px;
}
.quick-link{font-size:14px;color:var(--text-2);white-space:nowrap;}
.quick-link:hover{color:var(--primary);}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  border:1px solid var(--border);
  border-radius:var(--radius-btn);
  background:#fff;
  color:var(--text);
  font-size:16px;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  transition:background-color var(--transition),color var(--transition),border-color var(--transition),box-shadow var(--transition),transform var(--transition);
}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary);}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark);}
.btn-light{background:#fff;color:var(--primary);border-color:#fff;}
.btn-light:hover{background:var(--primary-light);color:var(--primary-dark);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:0;
  border:0;
  background:none;
  color:var(--primary);
  font-size:15px;
  font-weight:600;
}
.btn-text:hover{text-decoration:underline;color:var(--primary-dark);}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-block;
  font-size:13px;
  line-height:1.5;
  padding:4px 10px;
  border-radius:var(--radius-badge);
  background:var(--primary-light);
  color:var(--primary);
  font-weight:600;
}
.badge-accent{background:#FBEEDF;color:#A85F1E;}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:90;
  background:#fff;
  padding:16px 20px 30px;
  overflow-y:auto;
  opacity:0;
  visibility:hidden;
  transform:translateY(-10px);
  transition:opacity var(--transition),transform var(--transition),visibility var(--transition);
}
.mobile-drawer.open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer-head{display:flex;align-items:center;gap:10px;height:44px;margin-bottom:18px;}
.drawer-close{
  margin-left:auto;
  width:40px;height:40px;
  border:1px solid var(--border);
  border-radius:var(--radius-btn);
  background:#fff;
  color:var(--text);
  font-size:16px;
}
.drawer-search{width:100%;height:44px;margin-bottom:20px;}
.drawer-nav{margin-bottom:24px;}
.drawer-nav li{border-bottom:1px solid var(--border);}
.drawer-nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:15px 2px;
  font-size:16px;
  color:var(--text);
}
.drawer-nav a.active{color:var(--primary);font-weight:600;}
.drawer-nav a i{font-size:12px;color:var(--text-3);}
.drawer-cta{width:100%;}

/* ---------- 主视觉 ---------- */
.page-hero{
  position:relative;
  padding:56px 0 48px;
  background:#fff;
  border-bottom:1px solid var(--border);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(22,85,110,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(22,85,110,.045) 1px,transparent 1px);
  background-size:34px 34px;
  -webkit-mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.15) 70%,transparent 100%);
  mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.15) 70%,transparent 100%);
  pointer-events:none;
}
.page-hero .container{position:relative;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb span.sep{color:var(--border);}
.page-hero h1{margin-top:16px;max-width:900px;}
.lede{
  margin-top:18px;
  max-width:780px;
  font-size:17px;
  line-height:1.85;
  color:var(--text-2);
}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  gap:12px 32px;
  margin-top:28px;
}
.hero-facts li{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--text-2);
}
.dot{
  width:7px;height:7px;
  border-radius:50%;
  background:var(--success);
  flex-shrink:0;
}

/* ---------- 板块 ---------- */
.section{padding:56px 0;}
@media(min-width:640px){.section{padding:72px 0;}}
@media(min-width:1024px){.section{padding:96px 0;}}
.section-alt{background:var(--bg-alt);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{
  position:relative;
  padding-left:16px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:5px;bottom:5px;
  width:4px;
  border-radius:2px;
  background:var(--primary);
}
.section-head p{
  margin:14px 0 0;
  font-size:16px;
  color:var(--text-2);
}

/* ---------- 对照表 ---------- */
.table-wrap{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
}
table.compare-table{
  width:100%;
  min-width:760px;
  margin:0;
  border-collapse:collapse;
  border-spacing:0;
  font-size:15px;
  background:transparent;
}
table.compare-table caption{
  caption-side:top;
  padding:16px 20px 0;
  text-align:left;
  font-size:13px;
  color:var(--text-3);
}
table.compare-table thead th{
  background:var(--primary-light);
  color:var(--primary-dark);
  font-size:14px;
  font-weight:600;
  text-align:left;
  padding:15px 20px;
  border-bottom:1px solid var(--border);
  white-space:nowrap;
}
table.compare-table tbody td{
  padding:16px 20px;
  border-bottom:1px solid var(--border);
  color:var(--text-2);
  line-height:1.7;
  vertical-align:top;
  background:transparent;
}
table.compare-table tbody tr:nth-child(even) td{background:#FAFCFD;}
table.compare-table tbody tr:last-child td{border-bottom:0;}
table.compare-table td:first-child{
  color:var(--text);
  font-weight:600;
  white-space:nowrap;
}
.table-note{
  margin:14px 0 0;
  font-size:13px;
  color:var(--text-3);
}
.tip-strip{
  display:flex;
  flex-wrap:wrap;
  gap:12px 28px;
  margin-top:22px;
}
.tip-strip li{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--text-2);
}
.tip-strip i{color:var(--success);font-size:13px;}

/* ---------- 栅格与卡片 ---------- */
.cards-row{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px;}
.cards-row > .column{
  float:none;
  display:flex;
  padding-left:12px;
  padding-right:12px;
  margin-bottom:24px;
}
.cards-row > .column:last-child{margin-bottom:0;}
.card{
  display:flex;
  flex-direction:column;
  width:100%;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
}
.card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
  border-color:rgba(22,85,110,.2);
}
.card-media{position:relative;overflow:hidden;background:var(--bg-alt);}
.card-media img{
  width:100%;
  height:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:0;
  transition:transform 400ms ease-out;
}
.card:hover .card-media img{transform:scale(1.02);}
.card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{margin:0;}
.card-body p{margin:0;font-size:15px;color:var(--text-2);}
.check-list{margin:4px 0 0;display:flex;flex-direction:column;gap:10px;}
.check-list li{
  display:flex;
  gap:10px;
  font-size:15px;
  color:var(--text-2);
  line-height:1.7;
}
.check-list i{color:var(--success);font-size:13px;margin-top:7px;flex-shrink:0;}

/* ---------- FAQ ---------- */
.faq-accordion.accordion{
  margin:0;
  padding:0;
  border:0;
  background:transparent;
  list-style:none;
}
.faq-accordion .accordion-item{
  margin:0 0 12px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:border-color var(--transition),box-shadow var(--transition);
}
.faq-accordion .accordion-item:hover{border-color:rgba(22,85,110,.2);}
.faq-accordion .accordion-item.is-active{box-shadow:var(--shadow-2);}
.faq-accordion .accordion-title{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin:0;
  padding:18px 22px;
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  color:var(--text);
  background:transparent;
  border:0;
  border-radius:0;
  transition:color var(--transition),background-color var(--transition);
}
.faq-accordion .accordion-title:hover{color:var(--primary);background:transparent;}
.faq-accordion .accordion-title::after{
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  content:"\f067";
  font-size:13px;
  color:var(--primary);
  flex-shrink:0;
}
.faq-accordion .accordion-item.is-active .accordion-title::after{content:"\f068";}
.faq-accordion .accordion-content{
  padding:0 22px 20px;
  border:0;
  border-top:1px solid var(--border);
  margin-top:0;
  padding-top:16px;
  background:transparent;
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
}
.faq-accordion .accordion-content p:last-child{margin-bottom:0;}

/* ---------- CTA ---------- */
.cta-banner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  padding:56px 40px;
  background:var(--primary);
  border-radius:16px;
  overflow:hidden;
  box-shadow:var(--shadow-2);
}
.cta-banner .cta-copy{position:relative;z-index:2;max-width:640px;}
.cta-banner h2{color:#fff;}
.cta-banner p{
  margin:14px 0 0;
  color:rgba(255,255,255,.84);
  font-size:16px;
}
.cta-actions{
  position:relative;
  z-index:2;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  flex-shrink:0;
}
.cta-shape{
  position:absolute;
  border-radius:24px;
  background:rgba(255,255,255,.07);
  pointer-events:none;
}
.cta-shape.s1{width:180px;height:180px;right:-40px;top:-60px;transform:rotate(18deg);}
.cta-shape.s2{width:110px;height:110px;right:120px;bottom:-50px;border-radius:50%;background:rgba(224,138,60,.22);}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:0;
  background:var(--primary-dark);
  color:rgba(255,255,255,.78);
  padding:56px 0 28px;
  font-size:14px;
}
.footer-update{
  display:flex;
  align-items:center;
  gap:8px;
  padding-bottom:22px;
  margin-bottom:32px;
  border-bottom:1px solid rgba(255,255,255,.14);
  font-size:13px;
  color:rgba(255,255,255,.7);
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);color:#fff;}
.footer-brand .brand-text{color:#fff;font-size:16px;}
.site-footer p{margin:0;line-height:1.85;color:rgba(255,255,255,.72);}
.site-footer h4{
  color:#fff;
  font-size:15px;
  margin-bottom:16px;
  font-weight:600;
}
.footer-links li,.footer-contact li{margin-bottom:10px;}
.footer-links a{color:rgba(255,255,255,.72);}
.footer-links a:hover{color:#fff;text-decoration:underline;}
.footer-contact li{color:rgba(255,255,255,.72);}
.footer-contact b{color:#fff;font-weight:600;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  align-items:center;
  margin-top:40px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;
  color:rgba(255,255,255,.6);
}
.disclaimer{max-width:620px;line-height:1.7;}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:70;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:13px 22px;
  background:var(--accent);
  color:#fff;
  font-size:15px;
  font-weight:600;
  border-radius:999px;
  box-shadow:var(--shadow-3);
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity 220ms ease-out,transform 220ms ease-out,visibility 220ms ease-out,background-color var(--transition);
}
.float-cta:hover{background:#C9762D;color:#fff;}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta i{font-size:14px;}

/* ---------- 响应式 ---------- */
@media(max-width:1199px){
  .main-nav{gap:20px;}
  .command-search{width:200px;}
}
@media(max-width:1023px){
  .main-nav,.command-search,.quick-link{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header-inner{height:56px;}
  .cta-banner{flex-direction:column;align-items:flex-start;padding:44px 32px;}
  .cta-actions{width:100%;}
}
@media(max-width:639px){
  .page-hero{padding:40px 0 36px;}
  .lede{font-size:16px;}
  .hero-facts{flex-direction:column;gap:10px;}
  .section-head{margin-bottom:28px;}
  .card-body{padding:20px;}
  .cta-banner{padding:36px 22px;border-radius:14px;}
  .cta-actions .btn{width:100%;}
  .float-cta{
    left:16px;
    right:16px;
    bottom:0;
    justify-content:center;
    border-radius:12px 12px 0 0;
    padding:14px 18px calc(14px + env(safe-area-inset-bottom));
  }
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category4 */
:root{
  --brand:#16556E;
  --brand-dark:#0E3E51;
  --brand-light:#E7F1F5;
  --amber:#E08A3C;
  --green:#2E9E7A;
  --bg:#F6F8F9;
  --card:#FFFFFF;
  --alt:#EDF3F5;
  --text:#10232B;
  --text-2:#566A74;
  --text-3:#8A9AA2;
  --line:#E1E8EB;
  --r-card:12px;
  --r-btn:8px;
  --r-input:8px;
  --r-badge:6px;
  --r-img:10px;
  --sh-1:0 1px 2px rgba(16,35,43,.06), 0 6px 16px rgba(16,35,43,.05);
  --sh-2:0 8px 24px rgba(16,35,43,.10);
  --sh-3:0 10px 30px rgba(16,35,43,.16);
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease);}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;letter-spacing:0;}
h1{font-size:clamp(30px,4vw,46px);line-height:1.25;}
h2{font-size:clamp(24px,3vw,30px);line-height:1.35;}
h3{font-size:20px;line-height:1.45;font-weight:600;}
p{margin:0 0 18px;color:var(--text-2);}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,button,select,textarea{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

/* Foundation 默认样式覆盖 */
.row{max-width:1200px;display:flex;flex-wrap:wrap;}
.row .column{padding-left:20px;padding-right:20px;float:none;}
.row .column:last-child:not(:first-child){float:none;}
a.button,button.button,.button{
  background:var(--brand);
  color:#fff;
  border-radius:var(--r-btn);
  font-weight:600;
  transition:background-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
a.button:hover,button.button:hover,.button:hover{background:var(--brand-dark);color:#fff;}
table{border-collapse:collapse;width:100%;}
table thead{background:var(--brand-light);}
table th,table td{border:1px solid var(--line);padding:12px 14px;font-size:15px;color:var(--text-2);}
table th{color:var(--brand-dark);font-weight:600;}
.accordion{border:none;background:transparent;}

.container{max-width:1200px;margin:0 auto;padding:0 20px;}
.section{padding:96px 0;}
.section--alt{background:var(--alt);}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head h2{margin-bottom:14px;}
.section-head p{font-size:16px;color:var(--text-2);}
.eyebrow{
  display:inline-block;
  background:var(--brand-light);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
  padding:4px 10px;
  border-radius:var(--r-badge);
  margin-bottom:16px;
}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);border-color:var(--brand-dark);}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-block{width:100%;}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand);
  font-size:15px;
  font-weight:600;
}
.btn-text:hover{color:var(--brand-dark);text-decoration:underline;}
.btn-text i{font-size:12px;transition:transform var(--ease);}
.btn-text:hover i{transform:translateX(3px);}

/* 头部导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 4px 18px rgba(16,35,43,.07);}
.header-inner{
  height:64px;
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:10px;
  background:var(--brand);
  color:#fff;
  font-size:15px;
  font-weight:700;
  letter-spacing:0;
}
.brand-divider{width:1px;height:20px;background:var(--line);}
.brand-name{font-size:15px;font-weight:600;color:var(--text);white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px;}
.main-nav a{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:20px 0;
  white-space:nowrap;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:14px;
  height:2px;
  background:var(--brand);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--ease);
}
.main-nav a:hover{color:var(--brand);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--brand);font-weight:600;}
.main-nav a.active::after{transform:scaleX(1);}
.header-right{display:flex;align-items:center;gap:14px;margin-left:auto;}
.cmd-search{
  display:flex;
  align-items:center;
  gap:8px;
  width:240px;
  height:38px;
  padding:0 10px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.cmd-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(22,85,110,.12);}
.cmd-search i{color:var(--text-3);font-size:14px;}
.cmd-search input{
  flex:1;
  min-width:0;
  border:none;
  background:transparent;
  height:36px;
  font-size:14px;
  color:var(--text);
  outline:none;
}
.cmd-search input::placeholder{color:var(--text-3);}
.kbd{
  font-size:11px;
  color:var(--text-3);
  border:1px solid var(--line);
  border-radius:5px;
  padding:1px 6px;
  white-space:nowrap;
}
.header-quick{font-size:14px;color:var(--text-2);}
.header-quick:hover{color:var(--brand);}
.nav-toggle{
  display:none;
  width:40px;
  height:40px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  color:var(--text);
  cursor:pointer;
}
.mobile-drawer{
  display:none;
  position:fixed;
  inset:0;
  z-index:80;
  background:#fff;
  padding:18px 20px 24px;
  overflow-y:auto;
  flex-direction:column;
}
.mobile-drawer.is-open{display:flex;}
.drawer-head{display:flex;align-items:center;gap:12px;margin-bottom:22px;}
.drawer-head .cmd-search{flex:1;width:auto;}
.drawer-close{
  width:40px;height:40px;flex-shrink:0;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  color:var(--text);
  cursor:pointer;
}
.drawer-group-title{font-size:13px;color:var(--text-3);margin:6px 0 10px;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  padding:14px 4px;
  font-size:16px;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--brand);font-weight:600;}
.drawer-foot{margin-top:auto;padding-top:24px;}

/* 面包屑 */
.crumbs{padding:20px 0 0;font-size:13px;color:var(--text-3);}
.crumbs a{color:var(--text-3);}
.crumbs a:hover{color:var(--brand);}
.crumbs span.sep{margin:0 8px;color:var(--line);}

/* Hero */
.hero{padding:36px 0 72px;}
.hero .row{align-items:center;}
.hero h1{margin:14px 0 16px;}
.hero .lead{font-size:17px;line-height:1.85;color:var(--text-2);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 26px;}
.trust-row{display:flex;flex-wrap:wrap;gap:22px;font-size:14px;color:var(--text-2);}
.trust-row span{display:inline-flex;align-items:center;gap:7px;}
.trust-row i{color:var(--green);font-size:13px;}
.hero-visual{position:relative;padding:10px 0 30px;}
.hero-visual .shot-main{
  border-radius:14px;
  overflow:hidden;
  box-shadow:var(--sh-2);
  border:1px solid var(--line);
  background:#fff;
}
.hero-visual .shot-main img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-visual .shot-sub{
  position:absolute;
  right:0;
  bottom:0;
  width:52%;
  border-radius:12px;
  overflow:hidden;
  border:4px solid #fff;
  box-shadow:var(--sh-3);
  background:#fff;
}
.hero-visual .shot-sub img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-note{
  position:absolute;
  left:-6px;
  top:22px;
  background:#fff;
  border:1px solid var(--line);
  border-left:3px solid var(--brand);
  border-radius:var(--r-card);
  box-shadow:var(--sh-2);
  padding:12px 16px;
  font-size:13px;
  color:var(--text-2);
  line-height:1.6;
}
.hero-note b{display:block;color:var(--text);font-size:14px;margin-bottom:2px;}

/* 场景问答卡 */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;padding-bottom:32px;}
.scene-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:28px 26px;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.scene-grid .scene-card:nth-child(even){margin-top:34px;}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(22,85,110,.28);}
.scene-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border-radius:9px;
  background:var(--brand-light);
  color:var(--brand);
  font-size:14px;
  font-weight:700;
  margin-bottom:14px;
}
.scene-card h3{margin-bottom:10px;}
.scene-card .scene-desc{font-size:15px;color:var(--text-2);line-height:1.8;margin-bottom:16px;}
.scene-points li{
  position:relative;
  padding-left:20px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.75;
  margin-bottom:8px;
}
.scene-points li:last-child{margin-bottom:0;}
.scene-points li::before{
  content:"";
  position:absolute;
  left:0;
  top:10px;
  width:8px;
  height:8px;
  border-radius:2px;
  background:var(--brand-light);
  border:1px solid rgba(22,85,110,.35);
}

/* 时间线 */
.timeline{position:relative;max-width:820px;margin:0 auto;padding-left:8px;}
.timeline::before{
  content:"";
  position:absolute;
  left:24px;
  top:12px;
  bottom:12px;
  width:2px;
  background:linear-gradient(to bottom,var(--brand-light),rgba(22,85,110,.18));
}
.step{position:relative;padding-left:70px;margin-bottom:24px;}
.step:last-child{margin-bottom:0;}
.step-dot{
  position:absolute;
  left:6px;
  top:22px;
  width:38px;
  height:38px;
  border-radius:50%;
  background:#fff;
  border:2px solid var(--brand);
  color:var(--brand);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  font-weight:700;
}
.step-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:22px 24px;
  transition:box-shadow var(--ease),border-color var(--ease);
}
.step-card:hover{box-shadow:var(--sh-2);border-color:rgba(22,85,110,.24);}
.step-card h3{margin-bottom:8px;}
.step-card p{font-size:15px;margin:0;}
.step-meta{display:inline-block;font-size:13px;color:var(--brand);background:var(--brand-light);border-radius:var(--r-badge);padding:3px 10px;margin-bottom:10px;}

/* 证言 */
.proof-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.quote-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:26px 24px;
  display:flex;
  flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease);
}
.quote-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.quote-card .mark{color:var(--brand-light);font-size:26px;line-height:1;margin-bottom:12px;}
.quote-card p{font-size:15px;color:var(--text-2);margin-bottom:20px;}
.quote-who{display:flex;align-items:center;gap:12px;margin-top:auto;}
.avatar{
  width:40px;height:40px;border-radius:50%;
  background:var(--brand-light);
  color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;
}
.quote-who b{display:block;font-size:14px;color:var(--text);}
.quote-who span{font-size:13px;color:var(--text-3);}

/* FAQ */
.faq-list{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item.open{border-color:rgba(22,85,110,.28);box-shadow:var(--sh-2);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  background:transparent;
  border:none;
  padding:20px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  cursor:pointer;
  transition:color var(--ease);
}
.faq-q:hover{color:var(--brand);}
.faq-icon{position:relative;width:16px;height:16px;flex-shrink:0;}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--brand);
  border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.faq-item.open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows 200ms ease-out;}
.faq-item.open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;}
.faq-a-inner p{padding:0 24px 20px;font-size:15px;color:var(--text-2);line-height:1.85;margin:0;}

/* CTA */
.cta-band{background:var(--brand);border-radius:16px;padding:56px;color:#fff;position:relative;overflow:hidden;}
.cta-band h2{color:#fff;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.84);max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.cta-band .btn-primary{background:#fff;color:var(--brand);}
.cta-band .btn-primary:hover{background:var(--brand-light);color:var(--brand-dark);}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.cta-shape{
  position:absolute;
  right:-40px;
  bottom:-60px;
  width:260px;
  height:260px;
  border-radius:50%;
  border:28px solid rgba(255,255,255,.08);
}

/* 页脚 */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.78);padding:64px 0 28px;margin-top:0;}
.footer-update{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.6);
  padding-bottom:20px;margin-bottom:36px;
  border-bottom:1px solid rgba(255,255,255,.14);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#fff;}
.footer-brand .brand-text{font-size:15px;font-weight:600;color:#fff;}
.site-footer p{color:rgba(255,255,255,.66);font-size:14px;line-height:1.8;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
.footer-links li,.footer-contact li{font-size:14px;line-height:1.9;margin-bottom:8px;color:rgba(255,255,255,.66);}
.footer-links a{color:rgba(255,255,255,.72);}
.footer-links a:hover{color:#fff;}
.footer-contact b{color:#fff;font-weight:600;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom .disclaimer{max-width:520px;}

/* 浮动 CTA */
.float-cta{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:70;
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:13px 22px;
  background:var(--amber);
  color:#fff;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  box-shadow:var(--sh-3);
  opacity:0;
  transform:translateY(12px);
  pointer-events:none;
  transition:opacity 220ms ease-out,transform 220ms ease-out,background-color var(--ease);
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta.is-hidden{opacity:0;transform:translateY(12px);pointer-events:none;}
.float-cta:hover{background:#cf7a2e;color:#fff;}

/* 响应式 */
@media (max-width:1199px){
  .cmd-search{width:200px;}
  .main-nav{gap:20px;}
}
@media (max-width:1023px){
  .section{padding:72px 0;}
  .row .column{padding-left:24px;padding-right:24px;}
  .main-nav{display:none;}
  .cmd-search{display:none;}
  .header-quick{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header-inner{gap:14px;}
  .hero{padding:24px 0 56px;}
  .hero-note{position:static;margin-top:18px;box-shadow:var(--sh-1);}
  .hero-visual .shot-sub{position:static;width:100%;margin-top:14px;border-width:0;border-radius:12px;}
  .scene-grid{grid-template-columns:1fr;padding-bottom:0;}
  .scene-grid .scene-card:nth-child(even){margin-top:0;}
  .proof-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-band{padding:40px 32px;}
}
@media (max-width:639px){
  .section{padding:56px 0;}
  .row .column{padding-left:20px;padding-right:20px;}
  .container{padding:0 20px;}
  .header-inner{height:56px;}
  .brand-name{font-size:14px;}
  .proof-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px 22px;border-radius:14px;}
  .cta-actions .btn{width:100%;}
  .hero-actions .btn{width:100%;}
  .timeline{padding-left:0;}
  .timeline::before{left:18px;}
  .step{padding-left:56px;}
  .step-dot{left:0;width:36px;height:36px;}
  .float-cta{
    left:12px;
    right:12px;
    bottom:0;
    border-radius:12px 12px 0 0;
    justify-content:center;
    padding:14px 18px calc(14px + env(safe-area-inset-bottom));
  }
  .footer-bottom{flex-direction:column;}
}