/* roulang page: index */
:root{
  --brand:#12557F;
  --brand-dark:#0A2E47;
  --brand-light:#E8F1F7;
  --accent:#EE7B2C;
  --accent-dark:#D96714;
  --accent-light:#FDF0E6;
  --ink:#0B2438;
  --text:#24384A;
  --muted:#5B7285;
  --ph:#93A5B4;
  --bg:#F5F8FA;
  --card:#FFFFFF;
  --border:#E2E9EF;
  --divider:#EEF3F7;
  --ok:#1F9D6B;
  --warn:#C2410C;
  --err:#C0392B;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-badge:6px;
  --sh-1:0 2px 10px rgba(14,45,70,.06);
  --sh-2:0 14px 32px rgba(14,45,70,.12);
  --sh-3:0 22px 48px rgba(14,45,70,.16);
  --t:.25s cubic-bezier(.2,.7,.3,1);
  --sp:88px;
  --nav-h:120px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6{
  margin:0;
  color:var(--ink);
  font-family:Inter,"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  letter-spacing:.02em;
  line-height:1.35;
  font-weight:700;
}
p{margin:0 0 1.1em;}
a{color:var(--brand);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--accent);}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.grid-container{max-width:1200px;padding-left:20px;padding-right:20px;}
.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px;}
.grid-margin-x{margin-top:-24px;}
.grid-margin-x>.cell{margin-top:24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:all var(--t);white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(238,123,44,.22);}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 18px rgba(238,123,44,.28);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 3px 10px rgba(238,123,44,.22);}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-outline:hover{background:var(--brand-light);color:var(--brand);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.65);}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
.btn-lg{height:48px;padding:0 28px;font-size:16px;}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.link-plain{font-size:14px;color:var(--brand);font-weight:500;}
.link-plain:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);}
.link-arrow:hover{color:var(--accent);}
.link-arrow svg{transition:transform var(--t);}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:800;background:#fff;box-shadow:0 1px 0 var(--border);}
.brandbar{background:#fff;border-bottom:1px solid var(--divider);transition:height var(--t);}
.brandbar-inner{display:flex;align-items:center;gap:24px;height:72px;transition:height var(--t);}
.site-header.is-compact .brandbar-inner{height:56px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex-shrink:0;
  background:linear-gradient(140deg,var(--brand) 0%,var(--brand-dark) 100%);
  display:flex;align-items:center;justify-content:center;color:#fff;
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-line1{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:.04em;}
.brand-line2{font-size:12px;font-weight:500;color:var(--muted);letter-spacing:.06em;}
.site-header.is-compact .brand-line2{font-size:11px;}
.site-search{flex:1;max-width:340px;position:relative;display:flex;align-items:center;}
.site-search input{
  width:100%;height:40px;border-radius:999px;border:1px solid var(--border);
  background:var(--bg);padding:0 44px 0 16px;color:var(--text);
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.site-search input::placeholder{color:var(--ph);}
.site-search input:focus{outline:none;background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px rgba(18,85,127,.12);}
.site-search button{
  position:absolute;right:4px;top:4px;width:32px;height:32px;border-radius:999px;
  border:0;background:transparent;color:var(--brand);display:flex;align-items:center;justify-content:center;
}
.site-search button:hover{background:var(--brand-light);}
.brand-actions{margin-left:auto;display:flex;align-items:center;gap:18px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--border);
  background:#fff;color:var(--brand);align-items:center;justify-content:center;
}
.nav-toggle:hover{background:var(--brand-light);}
.channelbar{background:#fff;}
.channel-list{display:flex;align-items:center;gap:6px;height:48px;overflow-x:auto;scrollbar-width:none;}
.channel-list::-webkit-scrollbar{display:none;}
.channel-link{
  display:inline-flex;align-items:center;height:48px;padding:0 14px;
  font-size:15px;font-weight:600;color:var(--muted);border-radius:999px;
  position:relative;white-space:nowrap;
}
.channel-link:hover{color:var(--brand);background:var(--brand-light);}
.channel-link.is-active{color:var(--brand);}
.channel-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;
  border-radius:3px 3px 0 0;background:var(--accent);
}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(10,46,71,.5);opacity:0;visibility:hidden;
  transition:opacity var(--t),visibility var(--t);z-index:990;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;top:0;left:0;bottom:0;width:82%;max-width:340px;background:#fff;z-index:1000;
  transform:translateX(-102%);transition:transform .3s cubic-bezier(.2,.7,.3,1);
  padding:20px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--divider);}
.drawer-title{font-size:15px;font-weight:700;color:var(--ink);}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--border);background:#fff;color:var(--muted);font-size:20px;line-height:1;}
.drawer-close:hover{background:var(--brand-light);color:var(--brand);}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-link{padding:12px 14px;border-radius:10px;font-size:15px;font-weight:600;color:var(--text);}
.drawer-link:hover{background:var(--brand-light);color:var(--brand);}
.drawer-link.is-active{background:var(--brand);color:#fff;}
.drawer-sub{font-size:12px;font-weight:700;color:var(--ph);letter-spacing:.14em;padding:6px 4px;}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:78vh;display:flex;align-items:center;overflow:hidden;background:var(--brand-dark);}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(105deg,rgba(10,46,71,.95) 0%,rgba(18,85,127,.84) 48%,rgba(10,46,71,.66) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
}
.hero-inner{position:relative;z-index:2;width:100%;padding:72px 0;}
.hero-grid{display:flex;align-items:center;gap:48px;}
.hero-copy{flex:1 1 620px;max-width:640px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.14);color:#fff;font-size:13px;font-weight:600;letter-spacing:.04em;margin-bottom:20px;
}
.hero-eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:block;}
.hero h1{
  color:#fff;font-size:clamp(26px,3.4vw,40px);line-height:1.3;letter-spacing:.02em;margin-bottom:18px;
}
.hero h1 .kw{white-space:nowrap;}
.hero-sub{color:rgba(255,255,255,.86);font-size:17px;line-height:1.75;margin-bottom:28px;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;}
.hero-stat{
  display:flex;flex-direction:column;gap:2px;padding:12px 18px;border-radius:12px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);color:#fff;min-width:140px;
  transition:background var(--t),transform var(--t);
}
.hero-stat:hover{background:rgba(255,255,255,.18);transform:translateY(-2px);color:#fff;}
.hero-stat strong{font-size:22px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;}
.hero-stat span{font-size:12px;color:rgba(255,255,255,.8);}
.hero-device{
  flex:0 0 268px;width:268px;border-radius:16px;overflow:hidden;
  border:6px solid rgba(255,255,255,.16);box-shadow:var(--sh-3);background:#0d3550;
  transform:perspective(1200px) rotateY(-4deg);
}
.hero-device img{width:100%;height:460px;object-fit:cover;}

/* ---------- 锚点条 ---------- */
.anchorbar{
  position:sticky;top:48px;z-index:790;background:#fff;border-bottom:1px solid var(--border);
  box-shadow:0 6px 16px rgba(14,45,70,.05);
}
.anchor-list{display:flex;align-items:center;gap:8px;height:52px;overflow-x:auto;scrollbar-width:none;}
.anchor-list::-webkit-scrollbar{display:none;}
.anchor-link{
  padding:7px 16px;border-radius:999px;font-size:14px;font-weight:600;color:var(--muted);
  background:var(--bg);white-space:nowrap;transition:all var(--t);
}
.anchor-link:hover{color:var(--brand);background:var(--brand-light);}
.anchor-link.is-active{background:var(--brand);color:#fff;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp) 0;}
.section-gray{background:var(--bg);}
.section-white{background:#fff;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.is-center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:12px;position:relative;}
.section-head h2::before{
  content:"";display:block;width:44px;height:4px;border-radius:2px;background:var(--accent);margin-bottom:16px;
}
.section-head.is-center h2::before{margin-left:auto;margin-right:auto;}
.section-head p{color:var(--muted);font-size:15.5px;margin:0;}
.badge{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:var(--r-badge);
  background:var(--accent);color:#fff;font-size:12px;font-weight:600;line-height:1.5;
}
.pill{
  display:inline-flex;align-items:center;height:32px;padding:0 16px;border-radius:999px;
  background:var(--brand-light);color:var(--brand);font-size:13.5px;font-weight:600;
}
.pill.is-active{background:var(--brand);color:#fff;}

/* ---------- 卖点 ---------- */
.feature-list{display:flex;flex-wrap:wrap;}
.feature-item{
  display:flex;gap:18px;padding:26px 24px;border-radius:var(--r-card);background:#fff;
  border:1px solid var(--border);box-shadow:var(--sh-1);transition:all var(--t);height:100%;
}
.feature-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#d5e3ec;}
.feature-num{
  font-family:Inter,system-ui,sans-serif;font-size:26px;font-weight:700;color:var(--brand-light);
  line-height:1;flex-shrink:0;width:46px;font-variant-numeric:tabular-nums;
}
.feature-body h3{font-size:17px;margin-bottom:8px;}
.feature-body p{font-size:14.5px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.feature-icon{
  width:44px;height:44px;border-radius:12px;background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}

/* ---------- 演示 ---------- */
.demo-grid{display:flex;align-items:center;gap:48px;}
.demo-visual{flex:0 0 300px;width:300px;}
.demo-visual .phone{
  border-radius:16px;overflow:hidden;border:6px solid #fff;box-shadow:var(--sh-3);background:#fff;
}
.demo-visual img{width:100%;height:430px;object-fit:cover;}
.demo-steps{flex:1 1 auto;}
.step-item{display:flex;gap:18px;padding:18px 0;border-bottom:1px solid var(--divider);}
.step-item:last-of-type{border-bottom:0;}
.step-badge{
  flex-shrink:0;width:38px;height:38px;border-radius:50%;background:var(--accent);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;
  font-variant-numeric:tabular-nums;box-shadow:0 6px 14px rgba(238,123,44,.28);
}
.step-text h3{font-size:17px;margin-bottom:6px;}
.step-text p{font-size:14.5px;color:var(--muted);margin:0;}
.demo-foot{margin-top:26px;}

/* ---------- 证据 ---------- */
.stat-card{
  background:#fff;border-radius:var(--r-card);padding:24px;border:1px solid var(--border);
  border-top:3px solid var(--brand);box-shadow:var(--sh-1);height:100%;transition:all var(--t);
}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.stat-card strong{
  display:block;font-size:32px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;
  line-height:1.2;letter-spacing:.01em;
}
.stat-card strong em{font-style:normal;font-size:15px;color:var(--muted);margin-left:4px;font-weight:600;}
.stat-card span{display:block;font-size:13px;color:var(--muted);margin-top:6px;}
.logo-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:44px;}
.logo-item{
  padding:10px 20px;border-radius:10px;border:1px solid var(--border);background:#fff;
  color:var(--ph);font-size:13.5px;font-weight:600;letter-spacing:.04em;transition:all var(--t);
}
.logo-item:hover{color:var(--brand);border-color:var(--brand);box-shadow:var(--sh-1);}
.quote-card{
  border-radius:var(--r-card);padding:28px;height:100%;border:1px solid var(--border);
  box-shadow:var(--sh-1);transition:all var(--t);
}
.quote-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.quote-card.alt{background:var(--brand-light);border-color:#d3e5f0;}
.quote-card .qmark{font-size:38px;line-height:1;color:var(--accent);font-weight:700;font-family:Georgia,serif;margin-bottom:8px;}
.quote-card p{font-size:15px;color:var(--text);margin-bottom:20px;}
.quote-meta{display:flex;align-items:center;gap:12px;}
.avatar{
  width:40px;height:40px;border-radius:50%;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;flex-shrink:0;
}
.quote-meta b{display:block;font-size:14px;color:var(--ink);font-weight:600;}
.quote-meta small{font-size:12.5px;color:var(--muted);}

/* ---------- 资讯 CMS ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;flex-wrap:wrap;}
.news-head h2{font-size:clamp(24px,2.6vw,32px);position:relative;}
.news-head h2::before{content:"";display:block;width:44px;height:4px;border-radius:2px;background:var(--accent);margin-bottom:16px;}
.news-head p{color:var(--muted);font-size:15px;margin:8px 0 0;}
.news-card{
  display:flex;flex-direction:column;background:#fff;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--border);box-shadow:var(--sh-1);height:100%;transition:all var(--t);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.news-thumb{position:relative;overflow:hidden;background:var(--brand-light);}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .45s cubic-bezier(.2,.7,.3,1);}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-thumb .badge{position:absolute;left:12px;top:12px;}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.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 h3 a{color:var(--ink);}
.news-body h3 a:hover{color:var(--brand);}
.news-body p{
  font-size:14px;color:var(--muted);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--ph);}
.news-card.featured .news-body h3{font-size:21px;-webkit-line-clamp:3;}
.news-card.featured .news-body p{-webkit-line-clamp:3;font-size:14.5px;}
.empty-state{
  background:#fff;border:1px dashed #c8d9e5;border-radius:var(--r-card);
  padding:40px 24px;text-align:center;box-shadow:var(--sh-1);
}
.empty-state .ico{color:var(--ph);margin-bottom:14px;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:18px;}

/* ---------- 价格 / 方案 ---------- */
.plan-card{
  background:#fff;border-radius:var(--r-card);border:1px solid var(--border);
  padding:28px 24px;height:100%;display:flex;flex-direction:column;
  box-shadow:var(--sh-1);transition:all var(--t);position:relative;
}
.plan-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.plan-card.is-featured{border:2px solid var(--brand);box-shadow:var(--sh-3);transform:translateY(-8px);}
.plan-card.is-featured:hover{transform:translateY(-11px);}
.plan-tag{
  position:absolute;right:20px;top:-13px;background:var(--accent);color:#fff;
  font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px;letter-spacing:.06em;
}
.plan-name{font-size:18px;font-weight:700;color:var(--ink);margin-bottom:6px;}
.plan-desc{font-size:13.5px;color:var(--muted);margin-bottom:18px;}
.plan-price{font-family:Inter,system-ui,sans-serif;font-size:34px;font-weight:700;color:var(--brand);line-height:1.1;font-variant-numeric:tabular-nums;}
.plan-price em{font-style:normal;font-size:14px;color:var(--muted);font-weight:500;margin-left:6px;}
.plan-divider{height:1px;background:var(--divider);margin:20px 0;}
.plan-list{display:flex;flex-direction:column;gap:12px;margin-bottom:24px;}
.plan-list li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--text);line-height:1.6;}
.plan-list li.off{color:var(--ph);}
.plan-list svg{flex-shrink:0;margin-top:4px;color:var(--ok);}
.plan-list li.off svg{color:var(--ph);}
.plan-card .btn{margin-top:auto;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--divider);}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;padding:20px 40px 20px 0;
  font-size:17px;font-weight:600;color:var(--ink);position:relative;line-height:1.55;
  transition:color var(--t);
}
.faq-q:hover{color:var(--brand);}
.faq-q::after{
  content:"";position:absolute;right:8px;top:50%;width:14px;height:2px;background:var(--ph);
  transform:translateY(-50%);transition:background var(--t);
}
.faq-q::before{
  content:"";position:absolute;right:14px;top:50%;width:2px;height:14px;background:var(--ph);
  transform:translateY(-50%);transition:transform var(--t),background var(--t);
}
.faq-item.is-open .faq-q{color:var(--brand);}
.faq-item.is-open .faq-q::before{transform:translateY(-50%) scaleY(0);}
.faq-item.is-open .faq-q::after{background:var(--accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s cubic-bezier(.2,.7,.3,1);position:relative;}
.faq-a-inner{padding:0 40px 22px 16px;font-size:15px;line-height:1.85;color:var(--muted);}
.faq-item.is-open .faq-a-inner{border-left:3px solid var(--accent);}

/* ---------- 结尾 CTA ---------- */
.cta-banner{background:var(--brand-dark);border-radius:0;padding:72px 0;}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.4vw,30px);max-width:560px;line-height:1.45;margin:0;}
.cta-inner p{color:rgba(255,255,255,.72);font-size:15px;margin:12px 0 0;max-width:560px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.78);padding:72px 0 72px;}
.footer-brand .fname{font-size:17px;font-weight:700;color:#fff;line-height:1.5;margin-bottom:12px;}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);margin-bottom:14px;}
.footer-brand .fcontact{font-size:14px;color:rgba(255,255,255,.66);}
.footer-brand .fcontact b{color:#fff;font-weight:600;}
.footer-col h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:18px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px;line-height:1.6;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  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 nav{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom a{color:rgba(255,255,255,.6);font-size:13px;}
.footer-bottom a:hover{color:#fff;}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:900;
  display:flex;align-items:center;gap:12px;
  padding:8px;border-radius:999px;background:#fff;box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity var(--t),transform var(--t),visibility var(--t);
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{transform:translateY(-2px);box-shadow:var(--sh-3);}
.float-cta-label{font-size:14px;color:var(--muted);padding-left:14px;display:none;}
.float-cta-close{display:none;width:36px;height:36px;border-radius:999px;border:0;background:transparent;color:var(--ph);font-size:18px;line-height:1;flex-shrink:0;}
.float-cta-close:hover{background:var(--bg);color:var(--brand);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  :root{--sp:64px;}
  .grid-container{padding-left:32px;padding-right:32px;}
  .hero-grid{gap:32px;}
  .hero-device{flex:0 0 220px;width:220px;}
  .hero-device img{height:380px;}
  .demo-grid{gap:32px;}
  .demo-visual{flex:0 0 240px;width:240px;}
  .demo-visual img{height:360px;}
  .feature-item:nth-child(even){margin-top:0;}
  .site-search{max-width:220px;}
}
@media screen and (max-width:767px){
  :root{--sp:48px;}
  body{font-size:16px;}
  .grid-container{padding-left:20px;padding-right:20px;}
  .grid-margin-x{margin-left:-8px;margin-right:-8px;margin-top:-16px;}
  .grid-margin-x>.cell{padding-left:8px;padding-right:8px;margin-top:16px;}
  .site-search{display:none;}
  .brand-actions .link-plain,.brand-actions .btn{display:none;}
  .nav-toggle{display:inline-flex;}
  .brandbar-inner{height:64px;gap:12px;}
  .brand-line1{font-size:15px;}
  .brand-line2{font-size:11.5px;}
  .site-header.is-compact .brandbar-inner{height:56px;}
  .channel-list{height:46px;}
  .channel-link{height:46px;padding:0 12px;font-size:14px;}
  .anchorbar{top:46px;}
  .anchor-list{height:48px;}
  .hero{min-height:420px;}
  .hero-inner{padding:48px 0 56px;}
  .hero-grid{flex-direction:column;align-items:flex-start;}
  .hero-copy{max-width:100%;}
  .hero-device{display:none;}
  .hero-stat{flex:1 1 46%;min-width:0;padding:10px 14px;}
  .hero-stat strong{font-size:20px;}
  .demo-grid{flex-direction:column;align-items:stretch;}
  .demo-visual{width:100%;flex:1 1 auto;max-width:280px;margin:0 auto;}
  .demo-visual img{height:360px;}
  .section-head{margin-bottom:28px;}
  .news-head{margin-bottom:24px;}
  .news-card.featured .news-body h3{font-size:18px;}
  .cta-banner{padding:48px 0;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px;}
  .cta-inner .btn{width:100%;}
  .site-footer{padding:56px 0 88px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;padding:8px 14px;
    justify-content:space-between;background:#fff;box-shadow:0 -6px 20px rgba(14,45,70,.12);
  }
  .float-cta-label{display:inline-block;padding-left:0;}
  .float-cta-close{display:inline-flex;align-items:center;justify-content:center;}
  .float-cta .btn{height:44px;}
  .plan-card.is-featured{transform:none;}
  .plan-card.is-featured:hover{transform:translateY(-3px);}
  .faq-q{font-size:16px;padding-right:36px;}
}
@media screen and (max-width:400px){
  .hero h1{font-size:22px;}
  .hero-stat span{font-size:11.5px;}
  .float-cta-label{font-size:13px;}
}

/* roulang page: article */
:root{
  --brand:#12557F;
  --brand-deep:#0A2E47;
  --brand-soft:#E8F1F7;
  --accent:#EE7B2C;
  --accent-dark:#D96714;
  --accent-soft:#FDF0E6;
  --text:#0B2438;
  --text-body:#24384A;
  --text-muted:#5B7285;
  --text-faint:#93A5B4;
  --bg:#F5F8FA;
  --card:#FFFFFF;
  --border:#E2E9EF;
  --divider:#EEF3F7;
  --success:#1F9D6B;
  --danger:#C0392B;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-input:10px;
  --r-badge:6px;
  --sh-1:0 2px 10px rgba(14,45,70,.06);
  --sh-2:0 14px 32px rgba(14,45,70,.12);
  --sh-3:0 22px 48px rgba(14,45,70,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gap:24px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:Inter,"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.75;color:var(--text-body);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .25s var(--ease);}
a:hover{color:var(--accent);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input{font-family:inherit;}
button{background:none;border:0;cursor:pointer;color:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.grid-container{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;width:100%;}
@media screen and (min-width:640px){.grid-container{padding-left:32px;padding-right:32px;}}
@media screen and (min-width:1024px){.grid-container{padding-left:40px;padding-right:40px;}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;
  border:1px solid transparent;transition:all .25s var(--ease);white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 18px rgba(238,123,44,.28);}
.btn-primary:active{transform:translateY(0);box-shadow:0 2px 6px rgba(238,123,44,.22);}
.btn-ghost{background:#fff;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand);}
.btn-light{background:#fff;color:var(--brand);}
.btn-light:hover{background:var(--brand-soft);color:var(--brand);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.link-plain{font-size:14px;color:var(--brand);}
.link-plain:hover{color:var(--accent);}
.text-link{color:var(--brand);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.text-link:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
.tag-pill{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:500;
  transition:all .25s var(--ease);
}
.tag-pill:hover{background:var(--brand);color:#fff;}
.cat-badge{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:var(--r-badge);
  background:var(--accent);color:#fff;font-size:12px;font-weight:600;line-height:1.4;
}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:800;background:#fff;}
.brandbar{border-bottom:1px solid var(--divider);transition:height .25s var(--ease);}
.brandbar-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .25s var(--ease);}
.site-header.is-compact .brandbar-inner{height:56px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text);}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--brand-soft);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{display:flex;flex-direction:column;line-height:1.12;}
.brand-line1{font-size:13px;font-weight:600;color:var(--text-muted);letter-spacing:.08em;}
.brand-line2{font-size:17px;font-weight:700;color:var(--text);letter-spacing:.02em;}
.site-search{
  flex:1 1 auto;max-width:360px;display:flex;align-items:center;
  background:var(--bg);border:1px solid var(--border);border-radius:var(--r-input);
  height:42px;padding:0 6px 0 14px;transition:all .25s var(--ease);
}
.site-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(18,85,127,.12);background:#fff;}
.site-search input{
  flex:1;border:0;background:transparent;height:100%;font-size:14px;color:var(--text-body);outline:none;
}
.site-search input::placeholder{color:var(--text-faint);}
.site-search button{
  width:34px;height:34px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--brand);transition:background .25s var(--ease);
}
.site-search button:hover{background:var(--brand-soft);}
.brand-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;align-items:center;justify-content:center;
  color:var(--text);border:1px solid var(--border);
}
.nav-toggle:hover{background:var(--brand-soft);color:var(--brand);}
.channelbar{position:sticky;top:0;z-index:790;background:#fff;border-bottom:1px solid var(--border);box-shadow:0 2px 8px rgba(14,45,70,.05);}
.channel-list{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;}
.channel-list::-webkit-scrollbar{display:none;}
.channel-link{
  display:inline-flex;align-items:center;height:52px;padding:0 16px;font-size:15px;font-weight:600;
  color:var(--text-muted);border-bottom:3px solid transparent;white-space:nowrap;
  transition:all .25s var(--ease);
}
.channel-link:hover{color:var(--brand);background:var(--brand-soft);border-radius:999px;}
.channel-link.is-active{color:var(--brand);border-bottom-color:var(--accent);}
.channel-link.is-active:hover{background:transparent;border-radius:0;}

/* 移动端抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(10,46,71,.45);opacity:0;visibility:hidden;transition:all .25s var(--ease);z-index:880;}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;left:0;width:82%;max-width:340px;height:100%;background:#fff;z-index:890;
  transform:translateX(-102%);transition:transform .28s var(--ease);display:flex;flex-direction:column;
  padding:20px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-title{font-size:16px;font-weight:700;color:var(--text);}
.drawer-close{width:44px;height:44px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border);color:var(--text);}
.drawer-close:hover{background:var(--brand-soft);color:var(--brand);}
.drawer-nav a{
  display:block;padding:13px 14px;border-radius:10px;font-size:15px;font-weight:600;color:var(--text-body);
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:var(--brand-soft);color:var(--brand);}
.drawer-foot{margin-top:auto;padding-top:20px;}

/* ============ 面包屑 ============ */
.crumbs-bar{background:#fff;border-bottom:1px solid var(--divider);}
.crumbs{display:flex;align-items:center;gap:8px;height:54px;font-size:14px;color:var(--text-muted);overflow:hidden;}
.crumbs a{color:var(--brand);}
.crumbs a:hover{color:var(--accent);}
.crumbs .sep{color:var(--text-faint);}
.crumbs .current{color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}

/* ============ 文章布局 ============ */
.page-main{padding:36px 0 88px;}
.article-col{min-width:0;}
.article-head{margin-bottom:26px;}
.article-head h1{
  font-size:clamp(26px,3.4vw,38px);line-height:1.35;font-weight:700;color:var(--text);
  letter-spacing:.02em;margin:14px 0 16px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13.5px;color:var(--text-muted);}
.meta-row .sep{width:1px;height:12px;background:var(--border);}
.article-panel{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:28px 24px;
}
@media screen and (min-width:768px){.article-panel{padding:40px 44px;}}

/* 正文排版 */
.article-body{font-size:16.5px;line-height:1.9;color:var(--text-body);max-width:100%;}
.article-body > * + *{margin-top:1.2em;}
.article-body h2{
  font-size:23px;line-height:1.45;font-weight:700;color:var(--text);letter-spacing:.02em;
  margin-top:40px;padding-left:14px;border-left:3px solid var(--accent);
}
.article-body h3{font-size:18px;line-height:1.5;font-weight:600;color:var(--text);margin-top:30px;}
.article-body p{margin:0;}
.article-body ul,.article-body ol{margin-left:1.4em;padding-left:0;}
.article-body ul li{list-style:disc;margin:.4em 0;}
.article-body ol li{list-style:decimal;margin:.4em 0;}
.article-body blockquote{
  background:var(--brand-soft);border-left:4px solid var(--brand);border-radius:0 10px 10px 0;
  padding:20px 22px;color:var(--text);font-size:15.5px;
}
.article-body blockquote p{margin:0;}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--accent);}
.article-body img{border-radius:var(--r-img);margin:1.4em auto;max-width:100%;height:auto;}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--text-muted);margin-top:10px;}
.article-body table{
  display:block;overflow-x:auto;width:100%;border-collapse:collapse;font-size:15px;
  border:1px solid var(--border);border-radius:10px;
}
.article-body thead{background:var(--brand-soft);}
.article-body th,.article-body td{padding:10px 14px;border-bottom:1px solid var(--divider);text-align:left;white-space:nowrap;}
.article-body thead th{color:var(--brand);font-weight:600;}
.article-body tbody tr:nth-child(even){background:#FAFCFD;}
.article-body code{
  background:#F1F5F8;border-radius:6px;padding:2px 6px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:14px;
}
.article-body pre{
  background:#F1F5F8;border-radius:10px;padding:18px;overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;padding:0;}

/* 内联 CTA 条 */
.inline-cta{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  background:var(--brand-soft);border-radius:12px;padding:16px 20px;margin:32px 0;
}
.inline-cta p{font-size:15px;font-weight:600;color:var(--brand-deep);margin:0;}
.inline-cta .text-link{font-size:14px;}

/* 空态 */
.empty-state{
  text-align:center;border:1px dashed var(--border);background:var(--bg);border-radius:var(--r-card);
  padding:48px 24px;
}
.empty-state i{font-size:30px;color:var(--brand);}
.empty-state p{margin:14px 0 20px;font-size:16px;color:var(--text);font-weight:600;}
.empty-state span{display:block;font-size:14px;color:var(--text-muted);margin-bottom:20px;}

/* 标签行 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;}
.tag-row .tag-pill{background:#fff;border:1px solid var(--border);color:var(--text-muted);}
.tag-row .tag-pill:hover{background:var(--brand-soft);border-color:var(--brand-soft);color:var(--brand);}

/* 相关推荐 */
.related{margin-top:44px;}
.section-title{font-size:20px;font-weight:700;color:var(--text);letter-spacing:.02em;margin-bottom:18px;display:flex;align-items:center;gap:10px;}
.section-title::before{content:"";width:4px;height:18px;border-radius:2px;background:var(--accent);display:inline-block;}
.card-grid{display:grid;gap:20px;grid-template-columns:1fr;}
@media screen and (min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr);}}
@media screen and (min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr);}}
.news-card{
  display:flex;flex-direction:column;background:var(--card);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);border:1px solid var(--border);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--brand-soft);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-thumb .cat-badge{position:absolute;top:12px;left:12px;}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.news-body h3{
  font-size:16.5px;line-height:1.5;font-weight:600;color:var(--text);margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  font-size:14px;line-height:1.75;color:var(--text-muted);margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-faint);}
.news-foot .text-link{font-size:13px;}

/* 上下篇 */
.prevnext{display:grid;gap:16px;grid-template-columns:1fr;margin-top:32px;}
@media screen and (min-width:768px){.prevnext{grid-template-columns:repeat(2,1fr);}}
.pn-item{
  display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--border);
  border-radius:12px;padding:16px 18px;transition:all .25s var(--ease);
}
.pn-item:hover{border-color:var(--brand);box-shadow:var(--sh-1);transform:translateY(-2px);}
.pn-item i{color:var(--brand);font-size:15px;}
.pn-item .pn-label{font-size:12.5px;color:var(--text-faint);display:block;}
.pn-item .pn-title{font-size:15px;font-weight:600;color:var(--text);line-height:1.5;}
.pn-item:hover .pn-title{color:var(--brand);}
.back-row{margin-top:24px;}

/* 底部 CTA 横幅 */
.cta-banner{
  margin-top:40px;background:var(--brand-deep);border-radius:var(--r-card);
  padding:34px 28px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
}
.cta-banner h2{font-size:22px;font-weight:700;color:#fff;line-height:1.5;letter-spacing:.02em;}
.cta-banner p{font-size:14px;color:rgba(255,255,255,.72);margin-top:8px;}

/* 侧栏 */
.side-col{min-width:0;}
@media screen and (min-width:1024px){
  .side-col{padding-left:8px;}
  .side-sticky{position:sticky;top:120px;}
}
.side-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:20px;margin-bottom:20px;
}
.side-card h3{
  font-size:15px;font-weight:700;color:var(--text);margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.side-card h3::before{content:"";width:3px;height:15px;border-radius:2px;background:var(--brand);}
.toc-list li a{
  display:block;padding:7px 10px;border-left:2px solid var(--divider);font-size:14px;color:var(--text-muted);
  line-height:1.6;transition:all .2s var(--ease);
}
.toc-list li a:hover,.toc-list li a.is-current{color:var(--brand);border-left-color:var(--accent);background:var(--brand-soft);}
.toc-list li.lvl-3 a{padding-left:22px;font-size:13.5px;}
.toc-empty{font-size:13.5px;color:var(--text-faint);line-height:1.7;}
.mini-list li + li{border-top:1px solid var(--divider);}
.mini-list a{display:block;padding:11px 0;font-size:14px;line-height:1.6;color:var(--text-body);}
.mini-list a:hover{color:var(--brand);}
.mini-list .mini-meta{display:block;font-size:12.5px;color:var(--text-faint);margin-top:2px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.78);padding:60px 0 88px;margin-top:0;}
.footer-brand .fname{font-size:18px;font-weight:700;color:#fff;letter-spacing:.02em;line-height:1.4;margin-bottom:12px;}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.7);margin-bottom:16px;}
.fcontact{font-size:14px;line-height:2;color:rgba(255,255,255,.72);}
.fcontact b{color:#fff;font-weight:600;}
.footer-col h4{font-size:16px;font-weight:600;color:#fff;margin-bottom:14px;}
.footer-col ul li{line-height:2;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:16px;}
.footer-bottom a{color:rgba(255,255,255,.72);font-size:13px;}
.footer-bottom a:hover{color:#fff;}

/* ============ 浮动 CTA ============ */
.float-pill{
  position:fixed;right:28px;bottom:28px;z-index:900;
  display:inline-flex;align-items:center;gap:8px;height:52px;padding:0 24px;border-radius:999px;
  background:var(--accent);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 12px 28px rgba(238,123,44,.34);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all .3s var(--ease);
}
.float-pill.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.float-pill:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);}
.float-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:900;height:56px;display:none;
  align-items:center;justify-content:space-between;gap:12px;padding:0 16px;
  background:#fff;border-top:1px solid var(--border);box-shadow:0 -6px 20px rgba(14,45,70,.08);
  transform:translateY(100%);transition:transform .3s var(--ease);
}
.float-bar.is-show{transform:translateY(0);}
.float-bar span{font-size:14px;font-weight:600;color:var(--text);}
.float-bar .bar-close{width:32px;height:32px;color:var(--text-faint);font-size:14px;}

@media screen and (max-width:1023px){
  .site-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .brand-actions .link-plain{display:none;}
  .float-pill{display:none;}
  .float-bar{display:flex;}
}
@media screen and (max-width:639px){
  .page-main{padding:22px 0 72px;}
  .article-panel{padding:22px 18px;border-radius:12px;}
  .article-body{font-size:16px;line-height:1.88;}
  .article-body h2{font-size:20px;margin-top:32px;}
  .brandbar-inner{height:64px;gap:12px;}
  .brand-line1{font-size:11.5px;}
  .brand-line2{font-size:14.5px;}
  .brand-mark{width:32px;height:32px;}
  .channel-link{height:48px;padding:0 12px;font-size:14px;}
  .crumbs{height:48px;font-size:13px;}
  .cta-banner{padding:26px 20px;}
  .cta-banner h2{font-size:19px;}
  .site-footer{padding:44px 0 96px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
/* ================= 设计变量 ================= */
:root{
  --brand:#12557F;
  --brand-dark:#0A2E47;
  --brand-light:#E8F1F7;
  --accent:#EE7B2C;
  --accent-dark:#D96714;
  --accent-light:#FDF0E6;
  --ink:#0B2438;
  --text:#24384A;
  --muted:#5B7285;
  --faint:#93A5B4;
  --bg:#F5F8FA;
  --card:#FFFFFF;
  --border:#E2E9EF;
  --divider:#EEF3F7;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --radius-input:10px;
  --radius-badge:6px;
  --shadow-sm:0 2px 10px rgba(14,45,70,.06);
  --shadow-hover:0 14px 32px rgba(14,45,70,.12);
  --shadow-lg:0 22px 48px rgba(14,45,70,.16);
  --t:.25s cubic-bezier(.2,.7,.3,1);
  --gap-block:88px;
}

/* ================= 基础 reset ================= */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,system-ui,"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--t),border-color var(--t),background-color var(--t)}
a:hover{color:var(--accent)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,h5{color:var(--ink);margin:0;font-weight:700;letter-spacing:.02em;line-height:1.35}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}

/* ================= 容器 ================= */
.grid-container{
  max-width:1200px;
  margin:0 auto;
  padding-left:40px;
  padding-right:40px;
  width:100%;
}
@media screen and (max-width:1023px){
  .grid-container{padding-left:32px;padding-right:32px}
}
@media screen and (max-width:639px){
  .grid-container{padding-left:20px;padding-right:20px}
}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--radius-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;
  cursor:pointer;white-space:nowrap;line-height:1;
  transition:background-color var(--t),color var(--t),box-shadow var(--t),transform var(--t),border-color var(--t);
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 18px rgba(238,123,44,.28)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-secondary{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-secondary:hover{background:var(--brand-light);color:var(--brand);transform:translateY(-1px)}
.btn-secondary:active{transform:translateY(1px)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-lg{height:48px;padding:0 30px;font-size:16px}
.btn-block{width:100%}

.link-plain{color:var(--brand);font-size:14px;font-weight:500}
.link-plain:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14px;font-weight:600}
.link-arrow:hover{color:var(--accent)}
.link-arrow:hover .arrow{transform:translateX(3px)}
.arrow{transition:transform var(--t);display:inline-block}

/* ================= 头部 ================= */
.site-header{position:sticky;top:0;z-index:800;background:#fff;box-shadow:0 1px 0 rgba(14,45,70,.07)}
.brandbar{border-bottom:1px solid var(--divider)}
.brandbar-inner{
  display:flex;align-items:center;gap:24px;
  height:72px;transition:height var(--t);
}
.site-header.is-compact .brandbar-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-line1{font-size:15px;font-weight:700;letter-spacing:.02em}
.brand-line2{font-size:13px;font-weight:500;color:var(--muted);letter-spacing:.02em}
.site-search{
  margin:0;margin-left:auto;display:flex;align-items:center;
  background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-input);
  height:40px;padding:0 4px 0 14px;max-width:320px;flex:1 1 220px;
  transition:border-color var(--t),box-shadow var(--t);
}
.site-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(18,85,127,.12)}
.site-search input{
  border:0;background:transparent;height:36px;flex:1;min-width:0;
  color:var(--text);font-size:14px;outline:none;
}
.site-search input::placeholder{color:var(--faint)}
.site-search button{
  width:34px;height:32px;border:0;border-radius:8px;background:transparent;
  color:var(--brand);cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:background-color var(--t),color var(--t);
}
.site-search button:hover{background:var(--brand-light);color:var(--brand)}
.brand-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--border);border-radius:10px;
  background:#fff;color:var(--brand);cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle:hover{background:var(--brand-light)}

.channelbar{background:#fff;border-bottom:1px solid var(--border);position:relative}
.channel-list{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-list::-webkit-scrollbar{display:none}
.channel-link{
  display:inline-flex;align-items:center;height:48px;padding:0 16px;
  font-size:15px;font-weight:500;color:var(--text);position:relative;white-space:nowrap;border-radius:999px;
}
.channel-link:hover{background:var(--brand-light);color:var(--brand)}
.channel-link.is-active{color:var(--brand);font-weight:700}
.channel-link.is-active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:6px;height:3px;
  border-radius:999px;background:var(--accent);
}
.drawer-close{display:none}
.nav-overlay{
  position:fixed;inset:0;background:rgba(10,46,71,.45);
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);z-index:999;
}
.nav-overlay.is-open{opacity:1;visibility:visible}

/* ================= 页头横幅 ================= */
.page-hero{
  position:relative;
  min-height:320px;
  display:flex;align-items:flex-end;
  background-image:linear-gradient(100deg,rgba(10,46,71,.94) 0%,rgba(18,85,127,.82) 55%,rgba(10,46,71,.72) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  color:#fff;
  padding:56px 0 44px;
}
.page-hero h1{
  color:#fff;font-size:clamp(26px,3.2vw,40px);line-height:1.3;
  max-width:820px;margin:14px 0 12px;
}
.page-hero .hero-sub{color:rgba(255,255,255,.86);font-size:16px;max-width:640px;margin:0}
.crumb{font-size:14px;color:rgba(255,255,255,.75)}
.crumb a{color:rgba(255,255,255,.92)}
.crumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.crumb .sep{margin:0 8px;color:rgba(255,255,255,.5)}
.crumb .current{color:rgba(255,255,255,.68)}

/* ================= 板块通用 ================= */
.section{padding:var(--gap-block) 0}
.section-alt{background:#fff}
.section-head{margin-bottom:34px;max-width:760px}
.section-head h2{font-size:clamp(22px,2.4vw,30px);position:relative;padding-left:16px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:4px;background:var(--accent);
}
.section-head .sub{margin:12px 0 0;color:var(--muted);font-size:15px}

/* ================= 侧栏 + 条目列表 ================= */
.layout-side{display:flex;gap:32px;align-items:flex-start}
.side-col{flex:0 0 250px;position:sticky;top:132px}
.main-col{flex:1;min-width:0}
.side-box{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-sm);
}
.side-box + .side-box{margin-top:20px}
.side-title{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:14px;letter-spacing:.02em}
.pill-list{display:flex;flex-wrap:wrap;gap:8px}
.pill{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  background:var(--brand-light);color:var(--brand);font-size:13px;font-weight:600;
  transition:background-color var(--t),color var(--t);
}
.pill:hover{background:#D9E8F2;color:var(--brand)}
.pill.is-active{background:var(--brand);color:#fff}
.side-note{font-size:13.5px;line-height:1.8;color:var(--muted)}
.side-note b{color:var(--ink);font-weight:600}

.entry-list{border-top:1px solid var(--divider)}
.entry{
  display:flex;gap:22px;align-items:flex-start;
  padding:20px;border-bottom:1px solid var(--divider);border-radius:var(--radius-img);
  transition:background-color var(--t);
}
.entry:hover{background:var(--brand-light)}
.entry-thumb{
  flex:0 0 220px;width:220px;aspect-ratio:3/2;border-radius:var(--radius-img);
  overflow:hidden;background:var(--brand-light);
}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.entry:hover .entry-thumb img{transform:scale(1.04)}
.entry-body{flex:1;min-width:0}
.entry-body h3{font-size:17px;margin-bottom:8px;color:var(--ink)}
.entry-body p{font-size:14.5px;color:var(--muted);margin:0 0 10px;line-height:1.8}
.entry-tag{
  display:inline-block;padding:4px 10px;border-radius:var(--radius-badge);
  background:var(--accent);color:#fff;font-size:12px;font-weight:600;margin-bottom:10px;
}

/* ================= 编号条带 ================= */
.strip-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.strip{
  display:flex;gap:18px;padding:24px;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-card);box-shadow:var(--shadow-sm);
  transition:box-shadow var(--t),transform var(--t);
}
.strip:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.strip-num{
  font-size:26px;font-weight:700;color:var(--brand-light);
  -webkit-text-stroke:1px var(--brand);flex:0 0 auto;line-height:1;
  font-variant-numeric:tabular-nums;
}
.strip-icon{
  width:44px;height:44px;border-radius:12px;background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.strip-icon svg{width:24px;height:24px}
.strip h3{font-size:17px;margin-bottom:8px}
.strip p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.8}

/* ================= 操作流程 ================= */
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:flow}
.flow-step{
  background:#fff;border-radius:var(--radius-card);padding:28px 24px;
  border:1px solid var(--border);box-shadow:var(--shadow-sm);
  transition:box-shadow var(--t),transform var(--t);
}
.flow-step:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.flow-badge{
  width:40px;height:40px;border-radius:999px;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;
  margin-bottom:16px;font-variant-numeric:tabular-nums;
}
.flow-step h3{font-size:17px;margin-bottom:10px}
.flow-step p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.8}

/* ================= 数据卡 ================= */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{
  background:#fff;border-radius:var(--radius-card);padding:24px;
  border-top:3px solid var(--brand);box-shadow:var(--shadow-sm);
}
.stat .value{font-size:30px;font-weight:700;color:var(--brand);line-height:1.2;font-variant-numeric:tabular-nums}
.stat .value span{font-size:14px;font-weight:600;margin-left:4px;color:var(--muted)}
.stat .label{font-size:13.5px;color:var(--muted);margin-top:8px;line-height:1.7}

/* ================= 场景卡 ================= */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene{
  border-radius:var(--radius-card);padding:26px;border:1px solid var(--border);
  background:#fff;box-shadow:var(--shadow-sm);transition:box-shadow var(--t),transform var(--t);
}
.scene:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.scene.is-tint{background:var(--brand-light);border-color:#D6E5EF}
.scene.is-warm{background:var(--accent-light);border-color:#F6DEC9}
.scene h3{font-size:17px;margin-bottom:10px}
.scene p{font-size:14.5px;color:var(--muted);margin:0 0 14px;line-height:1.8}
.scene ul li{position:relative;padding-left:20px;font-size:14px;color:var(--text);line-height:1.9}
.scene ul li::before{
  content:"";position:absolute;left:0;top:12px;width:7px;height:7px;border-radius:50%;
  background:var(--accent);
}

/* ================= FAQ ================= */
.faq-wrap{max-width:860px;margin:0 auto}
.accordion{border:0;background:transparent;margin:0}
.accordion-item{border:0;border-bottom:1px solid var(--divider);background:transparent}
.accordion-title{
  border:0;background:transparent;padding:18px 46px 18px 0;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:color var(--t),box-shadow var(--t),padding var(--t);
}
.accordion-title:hover{color:var(--brand)}
.accordion-title::before{
  content:"+";position:absolute;right:8px;top:50%;transform:translateY(-50%);
  color:var(--accent);font-size:22px;font-weight:400;margin:0;line-height:1;
}
.accordion-item.is-active .accordion-title::before{content:"–"}
.accordion-item.is-active .accordion-title{
  color:var(--brand);box-shadow:inset 3px 0 0 var(--accent);padding-left:16px;
}
.accordion-content{
  border:0;background:transparent;padding:0 0 22px;color:var(--muted);
  font-size:15px;line-height:1.85;
}
.accordion-item.is-active .accordion-content{padding-left:16px}

/* ================= CTA ================= */
.cta-band{
  background:var(--brand-dark);border-radius:18px;padding:44px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  color:#fff;box-shadow:var(--shadow-lg);
}
.cta-band h2{color:#fff;font-size:clamp(20px,2.2vw,26px);margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.78);margin:0;font-size:15px;max-width:560px}
.cta-band .btn{flex:0 0 auto}

/* ================= 表单 ================= */
.support{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--shadow-sm);
}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;height:44px;border:1px solid var(--border);border-radius:var(--radius-input);
  background:#fff;padding:0 14px;color:var(--text);outline:none;
  transition:border-color var(--t),box-shadow var(--t);
}
.field textarea{height:auto;min-height:110px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--faint)}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(18,85,127,.12);
}
.field .hint{font-size:13px;color:var(--faint);margin-top:6px}
.form-foot{display:flex;align-items:center;gap:16px;flex-wrap:wrap}

/* ================= 页脚 ================= */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.78);padding:64px 0 0;margin-top:0}
.footer-brand .fname{color:#fff;font-size:17px;font-weight:700;letter-spacing:.02em;margin-bottom:12px}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.72);margin:0 0 14px}
.fcontact{font-size:14px;line-height:2;color:rgba(255,255,255,.72)}
.fcontact b{color:#fff;font-weight:600}
.footer-col h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:14px}
.footer-col ul li{line-height:2}
.footer-col ul li a{color:rgba(255,255,255,.74);font-size:14px}
.footer-col ul li a:hover{color:#fff}
.footer-bottom{
  margin-top:48px;padding:22px 0 0;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.6);
}
.footer-bottom nav a{color:rgba(255,255,255,.7);margin-left:18px}
.footer-bottom nav a:hover{color:#fff}
.footer-space{height:72px}

/* ================= 浮动 CTA ================= */
.float-cta{
  position:fixed;right:32px;bottom:32px;z-index:900;
  display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 26px;
  border-radius:999px;background:var(--accent);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 14px 32px rgba(238,123,44,.32);
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity var(--t),transform var(--t),background-color var(--t);
}
.float-cta.is-visible{opacity:1;pointer-events:auto;transform:translateY(0)}
.float-cta:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px)}
.mobile-cta{
  display:none;position:fixed;left:0;right:0;bottom:0;height:56px;z-index:900;
  background:#fff;border-top:1px solid var(--border);box-shadow:0 -6px 20px rgba(14,45,70,.08);
  align-items:center;gap:12px;padding:0 14px;
}
.mobile-cta.is-visible{display:flex}
.mobile-cta span{font-size:13.5px;color:var(--muted);flex:1;line-height:1.4}
.mobile-cta .btn{height:38px;padding:0 18px;font-size:14px}
.mobile-cta .close{
  width:32px;height:32px;border:0;background:var(--bg);border-radius:999px;
  color:var(--muted);font-size:18px;line-height:1;cursor:pointer;flex:0 0 auto;
}
.mobile-cta .close:hover{background:var(--brand-light);color:var(--brand)}

/* ================= 响应式 ================= */
@media screen and (max-width:1023px){
  :root{--gap-block:64px}
  .layout-side{flex-direction:column;gap:24px}
  .side-col{position:static;width:100%;flex:0 0 auto}
  .strip-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr 1fr}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:1fr}
  .page-hero{min-height:280px;padding:44px 0 36px}

  .nav-toggle{display:flex}
  .brand-actions .link-plain{display:none}
  .brand-actions .btn-sm{display:none}
  .channelbar{
    position:fixed;top:0;left:0;bottom:0;width:82%;max-width:320px;
    background:#fff;z-index:1000;transform:translateX(-102%);
    transition:transform .3s cubic-bezier(.2,.7,.3,1);
    box-shadow:0 0 40px rgba(10,46,71,.22);overflow-y:auto;
    padding:20px 0 32px;border-bottom:0;
  }
  .channelbar.is-open{transform:translateX(0)}
  .channelbar .grid-container{padding-left:16px;padding-right:16px}
  .channel-list{flex-direction:column;gap:4px;overflow:visible}
  .channel-link{height:auto;padding:14px 16px;border-radius:10px;font-size:16px;white-space:normal}
  .channel-link.is-active{background:var(--brand-light)}
  .channel-link.is-active::after{display:none}
  .drawer-close{
    display:flex;width:44px;height:44px;margin:0 0 12px 16px;
    align-items:center;justify-content:center;border:1px solid var(--border);
    background:#fff;border-radius:10px;color:var(--brand);font-size:20px;cursor:pointer;
  }
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 28px}
  .cta-band .btn{width:100%}
  .footer-space{height:88px}
}
@media screen and (max-width:639px){
  :root{--gap-block:48px}
  body{font-size:16px}
  .brandbar-inner{height:64px;gap:12px}
  .site-header.is-compact .brandbar-inner{height:56px}
  .brand-line1{font-size:14px}
  .brand-line2{font-size:11.5px}
  .site-search{position:relative;width:44px;height:44px;padding:0;flex:0 0 auto;background:transparent;border-color:transparent}
  .site-search input{display:none}
  .site-search button{width:44px;height:42px}
  .site-search.is-open{
    position:absolute;left:20px;right:20px;top:10px;width:auto;
    background:#fff;border-color:var(--brand);box-shadow:0 8px 24px rgba(14,45,70,.14);z-index:1100;
  }
  .site-search.is-open input{display:block;height:40px}
  .site-search.is-open button{position:static;width:auto;flex:0 0 auto}
  .entry{flex-direction:column;gap:14px;padding:16px 12px}
  .entry-thumb{width:100%;flex:0 0 auto}
  .flow{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr}
  .page-hero{min-height:220px;padding:36px 0 28px}
  .page-hero .hero-sub{font-size:14.5px}
  .cta-band{padding:28px 22px;border-radius:14px}
  .support{padding:22px}
  .float-cta{display:none}
  .footer-bottom nav a{margin-left:0;margin-right:16px;display:inline-block}
}

/* roulang page: category2 */
:root{
  --brand:#12557F;
  --brand-deep:#0A2E47;
  --brand-light:#E8F1F7;
  --accent:#EE7B2C;
  --accent-deep:#D96714;
  --accent-light:#FDF0E6;
  --ink:#0B2438;
  --text:#24384A;
  --muted:#5B7285;
  --faint:#93A5B4;
  --bg:#F5F8FA;
  --card:#FFFFFF;
  --border:#E2E9EF;
  --divider:#EEF3F7;
  --success:#1F9D6B;
  --warn:#C2410C;
  --error:#C0392B;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-input:10px;
  --r-badge:6px;
  --sh-1:0 2px 10px rgba(14,45,70,.06);
  --sh-2:0 14px 32px rgba(14,45,70,.12);
  --sh-3:0 22px 48px rgba(14,45,70,.16);
  --ease:0.25s cubic-bezier(.2,.7,.3,1);
  --gap-desktop:88px;
  --gap-tablet:64px;
  --gap-mobile:48px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Inter","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease);}
a:hover{color:var(--accent);}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:.02em;font-weight:700;}
h1{font-size:clamp(26px,3.2vw,40px);line-height:1.3;}
h2{font-size:clamp(22px,2.3vw,30px);line-height:1.35;}
h3{font-size:20px;line-height:1.5;font-weight:600;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text);}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

.grid-container{max-width:1240px;padding-left:20px;padding-right:20px;}
@media screen and (min-width:640px){.grid-container{padding-left:32px;padding-right:32px;}}
@media screen and (min-width:1024px){.grid-container{padding-left:40px;padding-right:40px;}}

/* ---------- 按钮 / 链接 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:background-color var(--ease),color var(--ease),box-shadow var(--ease),transform var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 2px 10px rgba(238,123,44,.20);}
.btn-primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px);box-shadow:0 8px 18px rgba(238,123,44,.28);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 2px 8px rgba(238,123,44,.20);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-lg{height:48px;padding:0 28px;}
.btn-block{width:100%;}
.link-plain{color:var(--muted);font-size:14px;font-weight:500;padding:8px 4px;}
.link-plain:hover{color:var(--brand);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);}
.link-arrow::after{content:"→";transition:transform var(--ease);}
.link-arrow:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
.link-arrow:hover::after{transform:translateX(3px);}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:800;background:#fff;box-shadow:0 1px 0 var(--border);}
.brandbar{border-bottom:1px solid var(--divider);}
.brandbar-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height var(--ease);}
.site-header.is-compact .brandbar-inner{height:56px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-light);color:var(--brand);
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-line1{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.04em;}
.brand-line2{font-size:13px;font-weight:600;color:var(--brand);letter-spacing:.04em;}
.site-search{
  display:flex;align-items:center;gap:0;flex:1 1 auto;max-width:340px;
  background:var(--bg);border:1px solid var(--border);border-radius:999px;
  padding:0 6px 0 16px;height:42px;transition:border-color var(--ease),box-shadow var(--ease);
}
.site-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(18,85,127,.12);}
.site-search input{
  flex:1 1 auto;border:0;background:transparent;height:38px;font-size:14px;outline:none;
}
.site-search input::placeholder{color:var(--faint);}
.site-search button{
  width:34px;height:34px;border-radius:999px;border:0;background:transparent;
  color:var(--brand);display:flex;align-items:center;justify-content:center;transition:background-color var(--ease);
}
.site-search button:hover{background:var(--brand-light);}
.brand-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--border);border-radius:var(--r-btn);
  background:#fff;color:var(--brand);align-items:center;justify-content:center;
}
.nav-toggle:hover{background:var(--brand-light);}
.channelbar{background:#fff;border-bottom:1px solid var(--border);box-shadow:0 1px 6px rgba(14,45,70,.04);}
.channel-list{display:flex;align-items:center;gap:8px;height:52px;overflow-x:auto;scrollbar-width:none;}
.channel-list::-webkit-scrollbar{display:none;}
.channel-link{
  display:inline-flex;align-items:center;height:52px;padding:0 14px;
  font-size:15px;font-weight:600;color:var(--muted);position:relative;white-space:nowrap;
  border-radius:999px;
}
.channel-link:hover{color:var(--brand);background:var(--brand-light);}
.channel-link.is-active{color:var(--brand);}
.channel-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;border-radius:3px;background:var(--accent);
}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);}
.breadcrumb a{color:var(--brand);}
.breadcrumb a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:var(--faint);}
.breadcrumb .current{color:var(--muted);}

/* ---------- 页头（浅色式） ---------- */
.page-hero{background:var(--brand-light);border-bottom:1px solid var(--border);}
.page-hero-inner{
  min-height:200px;padding:28px 0 32px;
  display:grid;grid-template-columns:1fr;gap:24px;align-items:center;
}
.page-hero h1{color:var(--brand);margin:16px 0 12px;}
.page-hero .hero-desc{max-width:640px;font-size:15px;color:var(--muted);margin:0;}
.page-hero-media{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1);aspect-ratio:16/9;}
.page-hero-media img{width:100%;height:100%;object-fit:cover;}
@media screen and (min-width:1024px){
  .page-hero-inner{grid-template-columns:1fr 320px;min-height:220px;gap:40px;}
}

/* ---------- 区块 ---------- */
.section{padding:48px 0;}
@media screen and (min-width:640px){.section{padding:64px 0;}}
@media screen and (min-width:1024px){.section{padding:88px 0;}}
.section-alt{background:var(--bg);}
.section-white{background:#fff;}
.section-head{max-width:820px;margin-bottom:32px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-title{position:relative;padding-left:14px;}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--accent);
}
.section-title.center-t{display:inline-block;padding-left:0;}
.section-title.center-t::before{display:none;}
.section-sub{margin:10px 0 0;font-size:15px;color:var(--muted);}

.lead-text{font-size:16.5px;line-height:1.9;color:var(--text);}

/* ---------- 筛选药丸 ---------- */
.filter-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px;}
.pill{
  display:inline-flex;align-items:center;height:32px;padding:0 16px;border-radius:999px;
  background:var(--brand-light);color:var(--brand);font-size:14px;font-weight:600;
  border:1px solid transparent;transition:background-color var(--ease),color var(--ease);
}
.pill:hover{background:#d9eaf4;}
.pill.is-on{background:var(--brand);color:#fff;}

/* ---------- 图标卡片网格 ---------- */
.icon-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media screen and (min-width:640px){.icon-grid{grid-template-columns:repeat(2,1fr);gap:20px;}}
@media screen and (min-width:1024px){.icon-grid{grid-template-columns:repeat(3,1fr);gap:24px;}}
.icon-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  display:flex;flex-direction:column;gap:12px;
}
.icon-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#d5e2ec;}
.icon-badge{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--brand-light);color:var(--brand);
}
.icon-badge svg{width:22px;height:22px;}
.icon-card h3{font-size:17px;line-height:1.5;}
.icon-card p{margin:0;font-size:14px;line-height:1.8;color:var(--muted);}
.icon-card .link-arrow{margin-top:auto;}

/* ---------- 速查列表 ---------- */
.trouble-list{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);}
.trouble-row{display:grid;grid-template-columns:1fr;gap:10px;padding:22px 24px;border-bottom:1px solid var(--divider);transition:background-color var(--ease);}
.trouble-row:last-child{border-bottom:0;}
.trouble-row:hover{background:var(--brand-light);}
.trouble-key h3{font-size:16.5px;margin-bottom:8px;}
.trouble-val p{margin:0 0 8px;font-size:14.5px;color:var(--muted);}
@media screen and (min-width:1024px){
  .trouble-row{grid-template-columns:340px 1fr;gap:32px;align-items:start;padding:26px 28px;}
}
.badge{
  display:inline-block;padding:4px 10px;border-radius:var(--r-badge);
  background:var(--accent);color:#fff;font-size:12px;font-weight:600;line-height:1.4;margin-bottom:8px;
}
.badge-soft{background:var(--brand-light);color:var(--brand);}

/* ---------- 四步流程 ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:20px;}
@media screen and (min-width:640px){.steps{grid-template-columns:repeat(2,1fr);}}
@media screen and (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);gap:24px;}}
.step-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:24px;
  box-shadow:var(--sh-1);position:relative;
  transition:transform var(--ease),box-shadow var(--ease);
}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.step-num{
  width:36px;height:36px;border-radius:999px;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;margin-bottom:14px;
}
.step-card h3{font-size:17px;margin-bottom:8px;}
.step-card p{margin:0;font-size:14px;line-height:1.8;color:var(--muted);}

/* ---------- 图文安全区块 ---------- */
.split{display:grid;grid-template-columns:1fr;gap:28px;align-items:center;}
@media screen and (min-width:1024px){.split{grid-template-columns:1fr 1fr;gap:56px;}}
.split-media{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-2);aspect-ratio:16/10;}
.split-media img{width:100%;height:100%;object-fit:cover;}
.check-list{display:flex;flex-direction:column;gap:14px;margin-top:20px;}
.check-list li{display:flex;gap:12px;font-size:15px;line-height:1.8;color:var(--text);}
.check-list svg{flex:0 0 auto;width:20px;height:20px;margin-top:5px;color:var(--success);}
.check-list b{color:var(--ink);font-weight:600;}

/* ---------- 表单 ---------- */
.form-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);}
@media screen and (min-width:640px){.form-card{padding:32px;}}
.form-grid{display:grid;grid-template-columns:1fr;gap:18px;}
@media screen and (min-width:640px){.form-grid{grid-template-columns:repeat(2,1fr);}}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1/-1;}
.field label{font-size:14px;font-weight:600;color:var(--ink);}
.field input,.field select,.field textarea{
  height:44px;border:1px solid var(--border);border-radius:var(--r-input);
  padding:0 14px;background:#fff;outline:none;transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{height:auto;min-height:110px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--faint);}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(18,85,127,.12);
}
.form-note{font-size:13px;color:var(--muted);margin-top:14px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--border);}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;
  display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:20px 0;font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:color var(--ease);
}
.faq-q:hover{color:var(--brand);}
.faq-sign{flex:0 0 auto;width:24px;height:24px;position:relative;margin-top:3px;color:var(--brand);}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;transition:transform var(--ease),opacity var(--ease);
}
.faq-sign::before{left:4px;right:4px;top:11px;height:2px;}
.faq-sign::after{top:4px;bottom:4px;left:11px;width:2px;}
.faq-item.is-open .faq-sign::after{transform:scaleY(0);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a-inner{padding:0 0 22px 0;font-size:15px;line-height:1.85;color:var(--muted);}
.faq-item.is-open{border-left:3px solid var(--accent);padding-left:16px;}
.faq-item.is-open .faq-q{color:var(--brand);}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  background:var(--brand-deep);color:#fff;border-radius:var(--r-card);
  padding:36px 24px;display:grid;grid-template-columns:1fr;gap:20px;align-items:center;
}
@media screen and (min-width:1024px){
  .cta-band{padding:56px 56px;grid-template-columns:1fr auto;gap:48px;}
}
.cta-band h2{color:#fff;font-size:clamp(20px,2vw,26px);line-height:1.45;}
.cta-band p{margin:10px 0 0;color:rgba(255,255,255,.72);font-size:15px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.78);padding:56px 0 72px;margin-top:0;}
.site-footer .fname{color:#fff;font-size:16px;font-weight:600;letter-spacing:.04em;margin-bottom:12px;line-height:1.5;}
.site-footer p{font-size:14px;line-height:2;color:rgba(255,255,255,.68);margin:0 0 14px;}
.site-footer .fcontact{font-size:14px;line-height:2;color:rgba(255,255,255,.68);}
.site-footer .fcontact b{color:#fff;font-weight:600;}
.footer-col h4{color:#fff;font-size:16px;font-weight:600;margin:0 0 14px;}
.footer-col ul li{line-height:2;}
.footer-col ul li a{color:rgba(255,255,255,.68);font-size:14px;}
.footer-col ul li a:hover{color:#fff;}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-direction:column;gap:12px;font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:16px;}
.footer-bottom nav a{color:rgba(255,255,255,.68);font-size:13px;}
.footer-bottom nav a:hover{color:#fff;}
@media screen and (min-width:1024px){
  .footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;}
  .site-footer{padding-bottom:88px;}
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:900;
  display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 24px;border-radius:999px;
  background:var(--accent);color:#fff;font-size:15px;font-weight:600;box-shadow:0 12px 26px rgba(238,123,44,.32);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity var(--ease),transform var(--ease),background-color var(--ease),visibility var(--ease);
}
.float-cta.is-on{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px);}
@media screen and (max-width:639px){
  .float-cta{
    left:0;right:0;bottom:0;height:56px;border-radius:0;justify-content:center;
    transform:translateY(0);
  }
}

/* ---------- 移动端导航折叠 ---------- */
@media screen and (max-width:1023px){
  .site-search{max-width:none;}
}
@media screen and (max-width:767px){
  .site-search{display:none;}
  .nav-toggle{display:flex;}
  .brandbar-inner{height:64px;gap:12px;}
  .brand-actions .link-plain,.brand-actions .btn{display:none;}
  .channel-list{
    flex-direction:column;align-items:stretch;height:auto;gap:4px;padding:0;
    max-height:0;overflow:hidden;transition:max-height .3s ease;
  }
  .channelbar.is-open .channel-list{max-height:340px;padding:8px 0 14px;}
  .channel-link{height:46px;border-radius:var(--r-btn);padding:0 14px;}
  .channel-link.is-active{background:var(--brand-light);}
  .channel-link.is-active::after{left:14px;right:auto;width:3px;top:12px;bottom:12px;height:auto;}
  .page-hero-inner{min-height:160px;padding:20px 0 26px;gap:20px;}
  .page-hero h1{margin:12px 0 10px;}
}