/* roulang page: index */
:root{
  --primary:#00A884;
  --primary-dark:#018A6C;
  --primary-soft:#E6F7F2;
  --primary-soft-2:#D3F1E9;
  --accent:#FF8A3D;
  --accent-soft:#FFF1E6;
  --bg:#F7F8F4;
  --card:#FFFFFF;
  --dark:#0B1F1C;
  --dark-2:#123028;
  --ink:#17211F;
  --ink-2:#5E6E68;
  --border:#E3E8E2;
  --success:#16A34A;
  --warn:#E5484D;
  --r-card:18px;
  --r-img:16px;
  --r-input:12px;
  --r-pill:999px;
  --shadow:0 12px 30px rgba(11,31,28,.08);
  --shadow-lg:0 18px 44px rgba(11,31,28,.14);
  --container:1240px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-dark)}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,select,textarea{font:inherit}
::selection{background:var(--primary-soft-2);color:var(--dark)}
:focus-visible{outline:3px solid rgba(0,168,132,.4);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-pill);font-size:16px;font-weight:600;
  border:1px solid transparent;transition:all .22s ease;white-space:nowrap;line-height:1.2;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px rgba(0,168,132,.28)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(0,168,132,.34)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;color:var(--dark);border-color:var(--border)}
.btn-ghost:hover{border-color:var(--primary);background:var(--primary-soft);color:var(--primary-dark);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 24px rgba(255,138,61,.28)}
.btn-accent:hover{background:#F07524;color:#fff;transform:translateY(-2px)}
.btn-soft{background:var(--primary-soft);color:var(--primary-dark)}
.btn-soft:hover{background:var(--primary-soft-2);color:var(--primary-dark)}
.btn-sm{padding:10px 20px;font-size:15px}
.btn:disabled,.btn[disabled]{background:#DCE3DF;color:#93A29C;box-shadow:none;cursor:not-allowed;transform:none}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-mark{
  width:42px;height:42px;border-radius:13px;flex-shrink:0;
  background:linear-gradient(140deg,var(--primary),#0FBF9F);
  color:#fff;font-size:20px;font-weight:800;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px rgba(0,168,132,.3);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:16px;color:var(--ink);letter-spacing:.4px}
.logo-text em{font-style:normal;font-size:12px;color:var(--ink-2);letter-spacing:2px}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;padding:9px 16px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--ink-2);
}
.nav-link:hover{color:var(--primary-dark);background:var(--primary-soft)}
.nav-link.active{color:var(--primary-dark);background:var(--primary-soft);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);
  width:22px;height:3px;border-radius:3px;background:var(--primary);
}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--border);
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:.25s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 抽屉导航 ---------- */
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(340px,86vw);background:#fff;z-index:80;
  transform:translateX(102%);transition:transform .3s ease;padding:24px 22px 40px;
  display:flex;flex-direction:column;gap:6px;box-shadow:-20px 0 50px rgba(11,31,28,.16);
  overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--border);font-size:20px;color:var(--ink-2);background:#fff}
.drawer-link{
  display:block;padding:14px 16px;border-radius:14px;font-size:16px;color:var(--ink);font-weight:500;
  border:1px solid transparent;
}
.drawer-link:hover{background:var(--primary-soft);color:var(--primary-dark)}
.drawer-link.active{background:var(--primary-soft);color:var(--primary-dark);font-weight:700;border-color:var(--primary-soft-2)}
.drawer .btn{margin-top:18px;width:100%}
.drawer-mask{position:fixed;inset:0;background:rgba(11,31,28,.42);z-index:70;opacity:0;visibility:hidden;transition:.3s}
.drawer-mask.open{opacity:1;visibility:visible}
body.lock{overflow:hidden}

/* ---------- 首屏 ---------- */
.hero{position:relative;padding:72px 0 0;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(720px 320px at 82% 6%,rgba(0,168,132,.10),transparent 70%),
    radial-gradient(520px 260px at 6% 78%,rgba(255,138,61,.09),transparent 70%);
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding-bottom:56px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--border);font-size:13.5px;color:var(--ink-2);font-weight:500;
  box-shadow:0 6px 16px rgba(11,31,28,.05);
}
.eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(0,168,132,.16)}
.hero h1{font-size:50px;line-height:1.2;margin:22px 0 20px;letter-spacing:-.5px}
.hero h1 span{color:var(--primary)}
.hero-sub{font-size:17.5px;color:var(--ink-2);max-width:596px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-badges li{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);
  padding:8px 14px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--border);
}
.hero-badges li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary)}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;border-radius:22px;box-shadow:var(--shadow-lg);border:1px solid var(--border);
  aspect-ratio:4/3;object-fit:cover;
}
.hero-float{
  position:absolute;left:-18px;bottom:26px;background:#fff;border-radius:16px;padding:14px 18px;
  box-shadow:var(--shadow);border:1px solid var(--border);display:flex;align-items:center;gap:12px;
}
.hero-float .dot{width:36px;height:36px;border-radius:11px;background:var(--primary-soft);color:var(--primary-dark);display:flex;align-items:center;justify-content:center;font-weight:800}
.hero-float b{display:block;font-size:15px;color:var(--ink)}
.hero-float small{font-size:12.5px;color:var(--ink-2)}
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:#fff;border:1px solid var(--border);border-radius:20px;box-shadow:var(--shadow);
  padding:26px 8px;margin-bottom:8px;
}
.stat-item{text-align:center;padding:0 16px;border-right:1px solid var(--border)}
.stat-item:last-child{border-right:0}
.stat-item b{display:block;font-size:26px;color:var(--primary-dark);font-family:Inter,"Noto Sans SC",sans-serif}
.stat-item span{font-size:13.5px;color:var(--ink-2)}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section.tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-tag{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;color:var(--primary-dark);
  background:var(--primary-soft);padding:6px 14px;border-radius:var(--r-pill);margin-bottom:16px;
}
.section-title{font-size:38px;letter-spacing:-.4px}
.section-sub{margin-top:14px;color:var(--ink-2);font-size:16.5px}
.bg-white{background:#fff}
.bg-dark{background:var(--dark);color:#E8F2EF}
.bg-dark .section-title{color:#fff}
.bg-dark .section-sub{color:#9FB8B2}

/* ---------- 卖点轨道 ---------- */
.feature-track{display:grid;grid-template-columns:1.35fr .9fr;gap:40px;align-items:start}
.feature-list{display:flex;flex-direction:column;gap:18px}
.feature-row{
  display:grid;grid-template-columns:64px 1fr;gap:20px;align-items:start;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:26px 26px 24px;box-shadow:var(--shadow);transition:all .25s ease;
}
.feature-row:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary-soft-2)}
.feature-num{
  width:64px;height:64px;border-radius:18px;background:var(--primary-soft);color:var(--primary-dark);
  display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800;font-family:Inter,sans-serif;
}
.feature-row h3{font-size:21px;margin-bottom:8px}
.feature-row p{color:var(--ink-2);font-size:15.5px}
.feature-row .micro{display:inline-block;margin-top:12px;font-size:14.5px;font-weight:600}
.feature-aside{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:30px;
  box-shadow:var(--shadow);position:sticky;top:96px;
}
.feature-aside img{border-radius:var(--r-img);margin-bottom:22px;aspect-ratio:16/10;object-fit:cover}
.feature-aside h3{font-size:20px;margin-bottom:12px}
.feature-aside ul{display:flex;flex-direction:column;gap:12px}
.feature-aside li{display:flex;gap:10px;font-size:15px;color:var(--ink-2)}
.feature-aside li::before{content:"✓";color:var(--primary);font-weight:800;flex-shrink:0}

/* ---------- 终端入口网格 ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.channel-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:26px 22px;
  box-shadow:var(--shadow);transition:all .25s ease;display:flex;flex-direction:column;gap:12px;
}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary-soft-2)}
.channel-icon{
  width:52px;height:52px;border-radius:15px;background:var(--primary-soft);color:var(--primary-dark);
  display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800;
}
.channel-card h3{font-size:18px}
.channel-card p{font-size:14.5px;color:var(--ink-2)}
.channel-card .tag-row{margin-top:auto;display:flex;gap:8px;flex-wrap:wrap}
.tag{
  display:inline-block;font-size:12.5px;padding:4px 11px;border-radius:var(--r-pill);
  background:var(--primary-soft);color:var(--primary-dark);font-weight:600;
}
.tag.warn{background:var(--accent-soft);color:#C25E15}

/* ---------- 场景分屏 ---------- */
.scene-wrap{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:center}
.step-list{position:relative;padding-left:6px}
.step-item{position:relative;padding:0 0 32px 56px}
.step-item::before{
  content:"";position:absolute;left:19px;top:44px;bottom:0;width:2px;background:var(--border);
}
.step-item:last-child{padding-bottom:0}
.step-item:last-child::before{display:none}
.step-num{
  position:absolute;left:0;top:2px;width:40px;height:40px;border-radius:50%;
  background:#fff;border:2px solid var(--border);color:var(--ink-2);font-weight:800;
  display:flex;align-items:center;justify-content:center;font-family:Inter,sans-serif;font-size:16px;
}
.step-item.active .step-num{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 0 0 6px rgba(0,168,132,.12)}
.step-item h3{font-size:20px;margin-bottom:8px}
.step-item p{color:var(--ink-2);font-size:15.5px}
.device-mock{
  background:var(--dark);border-radius:24px;padding:18px;box-shadow:var(--shadow-lg);
}
.device-bar{display:flex;gap:6px;margin-bottom:14px}
.device-bar i{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.24)}
.device-screen{background:#fff;border-radius:16px;overflow:hidden}
.device-screen img{aspect-ratio:16/10;object-fit:cover;width:100%}
.device-screen .screen-body{padding:18px 20px 22px}
.device-screen .screen-body h4{font-size:16px;margin-bottom:8px}
.device-screen .screen-body p{font-size:14px;color:var(--ink-2)}
.device-note{display:flex;gap:14px;margin-top:16px}
.device-note img{border-radius:14px;width:50%;aspect-ratio:16/11;object-fit:cover}

/* ---------- 自检清单 ---------- */
.check-table{background:#fff;border:1px solid var(--border);border-radius:20px;overflow:hidden;box-shadow:var(--shadow)}
.check-head,.check-row{display:grid;grid-template-columns:70px 1.15fr 1.85fr 104px;gap:18px;align-items:center;padding:20px 26px}
.check-head{background:#F1F5F1;font-size:13.5px;font-weight:700;color:var(--ink-2);letter-spacing:1px}
.check-row{border-top:1px solid var(--border);transition:background .2s}
.check-row:hover{background:var(--primary-soft)}
.check-row .idx{font-family:Inter,sans-serif;font-weight:800;color:var(--primary-dark);font-size:18px}
.check-row b{font-size:16px}
.check-row p{font-size:14.5px;color:var(--ink-2)}
.check-row .state{justify-self:end}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow);transition:all .25s ease;display:flex;flex-direction:column;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary-soft-2)}
.news-thumb{overflow:hidden;aspect-ratio:16/9;background:var(--primary-soft)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-title{font-size:18px;line-height:1.45}
.news-title a{color:var(--ink)}
.news-title a:hover{color:var(--primary-dark)}
.news-excerpt{font-size:14.5px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;display:flex;align-items:center;gap:12px;font-size:13px;color:var(--ink-2);border-top:1px dashed var(--border);padding-top:14px}
.empty-state{
  grid-column:1/-1;border:1.5px dashed var(--border);border-radius:var(--r-card);background:#fff;
  padding:56px 24px;text-align:center;color:var(--ink-2);
}
.empty-state .ico{font-size:34px;margin-bottom:12px}
.empty-state p{margin-bottom:18px}

/* ---------- 评价 ---------- */
.review-track{display:flex;gap:22px;overflow-x:auto;padding:6px 4px 22px;scroll-snap-type:x mandatory}
.review-track::-webkit-scrollbar{height:8px}
.review-track::-webkit-scrollbar-thumb{background:var(--primary-soft-2);border-radius:8px}
.review-card{
  flex:0 0 340px;scroll-snap-align:start;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-card);padding:26px;box-shadow:var(--shadow);transition:.25s;
}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.review-head{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.avatar{width:48px;height:48px;border-radius:14px;background:var(--primary-soft);color:var(--primary-dark);display:flex;align-items:center;justify-content:center;font-weight:800}
.review-head b{display:block;font-size:16px}
.review-head small{font-size:12.5px;color:var(--ink-2)}
.review-card p{font-size:15px;color:var(--ink-2);line-height:1.8}
.rating{color:var(--accent);font-size:14px;letter-spacing:2px;margin-top:14px;display:block}
.badges{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.badge{
  display:inline-flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-pill);padding:11px 20px;font-size:14.5px;color:var(--ink-2);box-shadow:0 6px 16px rgba(11,31,28,.05);
}
.badge b{color:var(--ink);font-weight:700}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:880px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:14px;overflow:hidden;transition:.25s;
}
.faq-item[open]{border-color:var(--primary-soft-2);box-shadow:var(--shadow);border-left:4px solid var(--primary)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;cursor:pointer;
  padding:20px 24px;font-size:17px;font-weight:600;list-style:none;
}
.faq-q::-webkit-details-marker{display:none}
.faq-q::after{content:"+";font-size:22px;color:var(--primary);font-weight:500;transition:transform .25s ease;flex-shrink:0}
.faq-item[open] .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 24px 22px;color:var(--ink-2);font-size:15.5px;line-height:1.85}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--dark);border-radius:26px;padding:56px 48px;color:#fff;position:relative;overflow:hidden;
  display:grid;grid-template-columns:1.4fr .9fr;gap:36px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,168,132,.35),transparent 68%);
}
.cta-band h2{font-size:34px;color:#fff;margin-bottom:14px}
.cta-band p{color:#9FB8B2;font-size:16px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;position:relative;z-index:1}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#B9CDC8;padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px}
.footer-brand .logo-text strong{color:#fff}
.footer-brand .logo-text em{color:#7E9A94}
.footer-brand p{margin-top:18px;font-size:14.5px;line-height:1.85;color:#93ADA8;max-width:340px}
.footer-col h4{font-size:16px;color:#fff;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14.5px;color:#B9CDC8}
.footer-col a:hover{color:var(--primary)}
.footer-col li span{font-size:14.5px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0 30px;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:13.5px;color:#7E9A94;
}
.footer-bottom a{color:#7E9A94}
.footer-bottom a:hover{color:var(--primary)}

/* ---------- 底部固定条 ---------- */
.fixed-bar{
  position:fixed;right:26px;bottom:26px;z-index:55;display:flex;gap:10px;align-items:center;
  background:rgba(255,255,255,.96);backdrop-filter:blur(10px);
  border:1px solid var(--border);border-radius:var(--r-pill);padding:10px;box-shadow:var(--shadow-lg);
  opacity:0;visibility:hidden;transform:translateY(16px);transition:.3s ease;
}
.fixed-bar.show{opacity:1;visibility:visible;transform:translateY(0)}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .hero h1{font-size:44px}
  .channel-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:1024px){
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:40px}
  .section{padding:76px 0}
  .section-title{font-size:32px}
  .feature-track{grid-template-columns:1fr;gap:28px}
  .feature-aside{position:static}
  .scene-wrap{grid-template-columns:1fr;gap:34px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr;padding:44px 32px}
  .cta-actions{justify-content:flex-start}
  .stat-strip{grid-template-columns:repeat(2,1fr);gap:22px 0}
  .stat-item:nth-child(2){border-right:0}
  .stat-item:nth-child(3),.stat-item:nth-child(4){padding-top:18px}
}
@media (max-width:768px){
  body{font-size:16px;line-height:1.8}
  .container{padding:0 20px}
  .hero{padding-top:48px}
  .hero h1{font-size:34px}
  .hero-sub{font-size:16px}
  .section{padding:56px 0}
  .section-title{font-size:27px}
  .section-sub{font-size:15.5px}
  .news-grid{grid-template-columns:1fr}
  .check-head{display:none}
  .check-row{grid-template-columns:1fr;gap:8px;padding:22px 20px}
  .check-row .idx{font-size:14px;color:var(--primary-dark);letter-spacing:1px}
  .check-row .state{justify-self:start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .review-card{flex:0 0 84%}
  .fixed-bar{
    left:14px;right:14px;bottom:14px;border-radius:18px;justify-content:space-between;
    padding:10px;gap:8px;
  }
  .fixed-bar .btn{padding:11px 16px;font-size:14px;flex:1}
  .device-note{flex-direction:column}
  .device-note img{width:100%}
}
@media (max-width:520px){
  .hero h1{font-size:30px}
  .hero-cta .btn{width:100%}
  .channel-grid{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr;padding:20px 8px}
  .stat-item{border-right:0;padding:12px 16px}
  .stat-item:nth-child(3),.stat-item:nth-child(4){padding-top:12px}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:36px 22px;border-radius:20px}
  .cta-band h2{font-size:26px}
  .faq-q{font-size:16px;padding:18px 20px}
  .faq-a{padding:0 20px 20px}
  .footer-bottom{flex-direction:column}
  .hero-float{left:0;right:0;bottom:-6px;position:static;margin-top:16px}
}

/* roulang page: article */
:root{
  --brand:#00A884;
  --brand-deep:#0FBF9F;
  --brand-soft:#E6F7F2;
  --brand-dark:#00795F;
  --accent:#FF8A3D;
  --accent-soft:#FFF1E6;
  --bg:#F7F8F4;
  --card:#FFFFFF;
  --ink:#0B1F1C;
  --line:#E3E8E2;
  --text:#17211F;
  --muted:#5E6E68;
  --success:#16A34A;
  --warn:#E5484D;
  --radius:18px;
  --radius-sm:12px;
  --radius-lg:26px;
  --shadow:0 12px 30px rgba(11,31,28,.08);
  --shadow-lg:0 18px 44px rgba(11,31,28,.14);
  --container:1240px;
  --t:.25s cubic-bezier(.4,0,.2,1);
  --font-cn:"HarmonyOS Sans SC","Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;}
a:hover{color:var(--brand-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
::selection{background:var(--brand-soft);color:var(--ink);}
:focus-visible{outline:3px solid rgba(0,168,132,.35);outline-offset:2px;border-radius:6px;}

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

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:72px;
}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.logo-mark{
  width:42px;height:42px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 100%);
  color:#fff;font-size:20px;font-weight:800;letter-spacing:0;
  box-shadow:0 8px 18px rgba(0,168,132,.28);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text strong{font-size:16px;font-weight:800;color:var(--ink);letter-spacing:.5px;}
.logo-text em{font-style:normal;font-size:11.5px;letter-spacing:.22em;color:var(--brand);font-weight:600;}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{
  padding:9px 16px;border-radius:999px;font-size:15px;font-weight:500;
  color:var(--muted);transition:var(--t);white-space:nowrap;
}
.nav-link:hover{color:var(--ink);background:var(--brand-soft);}
.nav-link.active{color:var(--brand);background:var(--brand-soft);font-weight:700;}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  transition:var(--t);
}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--ink);transition:var(--t);}
.nav-toggle:hover{border-color:var(--brand);}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.active span:nth-child(2){opacity:0;}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:700;font-size:15px;
  padding:13px 28px;border:1px solid transparent;
  transition:var(--t);white-space:nowrap;line-height:1.2;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(0,168,132,.26);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(0,168,132,.34);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 24px rgba(255,138,61,.28);}
.btn-accent:hover{background:#F07526;color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,138,61,.34);}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);transform:translateY(-2px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-lg{padding:16px 34px;font-size:17px;}
.btn-block{width:100%;}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;overflow:hidden;
  padding:46px 0 34px;
  background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
}
.article-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(0,168,132,.16) 1px,transparent 1px);
  background-size:22px 22px;opacity:.55;
  -webkit-mask-image:linear-gradient(180deg,#000 0%,transparent 82%);
  mask-image:linear-gradient(180deg,#000 0%,transparent 82%);
}
.article-hero .container{position:relative;z-index:1;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--muted);margin-bottom:20px;
}
.breadcrumb a{color:var(--muted);transition:var(--t);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#C4CFC9;}
.breadcrumb .current{
  color:var(--ink);font-weight:700;
  max-width:460px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.article-title{
  font-size:clamp(28px,4vw,44px);
  line-height:1.3;font-weight:800;letter-spacing:-.4px;
  color:var(--ink);max-width:900px;
}
.article-lead{
  margin-top:16px;max-width:820px;font-size:17px;color:var(--muted);line-height:1.85;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:24px;}
.meta-pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 15px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:13.5px;color:var(--muted);line-height:1.4;
}
.meta-pill.tag{background:var(--brand-soft);border-color:transparent;color:var(--brand-dark);font-weight:700;}
.meta-pill svg{width:15px;height:15px;flex-shrink:0;}

/* ============ 正文布局 ============ */
.article-main{padding:56px 0 72px;}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 316px;
  gap:40px;align-items:start;
}
.article-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);
  padding:44px 48px 40px;min-width:0;
}
.article-body{font-size:17px;line-height:1.88;color:var(--text);word-wrap:break-word;overflow-wrap:break-word;}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  position:relative;font-size:26px;line-height:1.45;font-weight:800;
  color:var(--ink);margin:44px 0 18px;padding-left:16px;letter-spacing:-.2px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.26em;bottom:.26em;width:5px;
  border-radius:3px;background:linear-gradient(180deg,var(--brand),var(--brand-deep));
}
.article-body h3{font-size:20px;line-height:1.5;font-weight:700;color:var(--ink);margin:30px 0 12px;}
.article-body h4{font-size:17px;font-weight:700;color:var(--ink);margin:22px 0 10px;}
.article-body p{margin:0 0 18px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:10px;}
.article-body li::marker{color:var(--brand);font-weight:700;}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(0,168,132,.35);transition:var(--t);}
.article-body a:hover{color:var(--brand-dark);border-bottom-color:currentColor;}
.article-body img{border-radius:16px;margin:10px 0 14px;box-shadow:var(--shadow);}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;border-radius:0 14px 14px 0;
  background:var(--brand-soft);border-left:4px solid var(--brand);
  color:#0C3B32;font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body strong{color:var(--ink);font-weight:700;}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15.5px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;}
.article-body th{background:#F2F6F3;font-weight:700;color:var(--ink);}
.article-body tr:nth-child(even) td{background:#FBFCFA;}
.article-body code{background:#F2F6F3;padding:2px 7px;border-radius:6px;font-size:.92em;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:14px;color:var(--muted);text-align:center;margin-top:8px;}

/* ============ 侧栏 ============ */
.article-aside{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px;}
.aside-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;
}
.aside-card h3{font-size:16px;font-weight:800;color:var(--ink);margin-bottom:14px;}
.aside-link{
  display:flex;align-items:center;gap:10px;
  padding:11px 12px;border-radius:12px;
  font-size:14.5px;color:var(--text);transition:var(--t);
}
.aside-link::before{
  content:"";width:7px;height:7px;border-radius:50%;
  background:var(--brand);flex-shrink:0;opacity:.75;
}
.aside-link:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateX(3px);}
.aside-note{
  border-radius:var(--radius);padding:22px;
  background:linear-gradient(150deg,#0B1F1C 0%,#123A33 100%);
  color:#CFE9E1;border:1px solid #164039;
}
.aside-note h3{color:#fff;font-size:16px;font-weight:800;margin-bottom:10px;}
.aside-note p{font-size:14px;line-height:1.8;color:#A9CFC5;margin-bottom:16px;}

/* ============ 空状态 ============ */
.empty-state{
  text-align:center;padding:60px 24px;border-radius:var(--radius);
  border:1.5px dashed #CDD8D2;background:#FBFCFA;
}
.empty-state .empty-icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:50%;
  display:grid;place-items:center;background:var(--brand-soft);color:var(--brand);
  font-size:26px;font-weight:800;
}
.empty-state h2{font-size:22px;font-weight:800;color:var(--ink);margin-bottom:10px;}
.empty-state p{color:var(--muted);font-size:15.5px;margin-bottom:24px;}

/* ============ 相关推荐 ============ */
.section{padding:0 0 72px;}
.section-head{margin-bottom:28px;}
.section-head h2{
  font-size:clamp(24px,3vw,32px);font-weight:800;color:var(--ink);
  letter-spacing:-.3px;line-height:1.35;
}
.section-head p{margin-top:10px;color:var(--muted);font-size:15.5px;max-width:720px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);
  transition:var(--t);height:100%;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#D2E6DE;}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EDF2EF;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.4,0,.2,1);}
.card:hover .card-media img{transform:scale(1.04);}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-tag{
  align-self:flex-start;font-size:12.5px;font-weight:700;
  color:var(--brand-dark);background:var(--brand-soft);
  padding:5px 12px;border-radius:999px;
}
.card-title{font-size:17px;font-weight:700;color:var(--ink);line-height:1.55;}
.card-title a{color:inherit;}
.card-title a:hover{color:var(--brand);}
.card-text{font-size:14.5px;color:var(--muted);line-height:1.75;}
.card-foot{margin-top:auto;font-size:13px;color:#8A9A94;}

/* ============ 正文尾部分类/返回入口 ============ */
.article-actions{
  display:flex;flex-wrap:wrap;gap:14px;
  margin-top:44px;padding-top:28px;border-top:1px solid var(--line);
}

/* ============ CTA 区块 ============ */
.cta-block{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#0B1F1C 0%,#123A33 62%,#0F4A3E 100%);
  border-radius:var(--radius-lg);
  padding:56px 56px;
  color:#E7F5F1;
}
.cta-block::after{
  content:"";position:absolute;right:-90px;bottom:-120px;width:340px;height:340px;
  border-radius:50%;background:radial-gradient(circle,rgba(0,168,132,.45),transparent 68%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;}
.cta-inner h2{font-size:clamp(24px,3vw,32px);font-weight:800;color:#fff;line-height:1.35;max-width:620px;}
.cta-inner p{margin-top:12px;font-size:15.5px;color:#A9CFC5;max-width:620px;line-height:1.8;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#A9CFC5;padding:64px 0 28px;margin-top:24px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .logo-text{margin-bottom:16px;}
.footer-brand .logo-text strong{color:#fff;font-size:17px;}
.footer-brand .logo-text em{color:var(--brand-deep);}
.footer-brand p{font-size:14.5px;line-height:1.85;color:#8FB3A9;max-width:380px;}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14.5px;color:#9FC2B9;transition:var(--t);}
.footer-col a:hover{color:var(--brand-deep);padding-left:3px;}
.footer-col span{font-size:14.5px;color:#8FB3A9;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  padding-top:24px;font-size:13.5px;color:#7AA096;
}
.footer-bottom a{color:#9FC2B9;}
.footer-bottom a:hover{color:var(--brand-deep);}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 290px;gap:32px;}
  .article-card{padding:38px 36px 34px;}
}
@media (max-width:992px){
  .main-nav{
    position:fixed;top:72px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(255,255,255,.98);
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    padding:16px 20px 24px;
    border-bottom:1px solid var(--line);
    box-shadow:0 20px 40px rgba(11,31,28,.10);
    transform:translateY(-12px);opacity:0;visibility:hidden;
    transition:var(--t);max-height:calc(100vh - 72px);overflow-y:auto;
  }
  .main-nav.open{transform:translateY(0);opacity:1;visibility:visible;}
  .nav-link{padding:14px 16px;border-radius:12px;font-size:16px;}
  .nav-toggle{display:flex;}
  .header-actions .btn-primary{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .article-aside{position:static;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-block{padding:44px 36px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .header-inner{height:64px;gap:12px;}
  .logo-mark{width:38px;height:38px;border-radius:11px;font-size:18px;}
  .logo-text strong{font-size:15px;}
  .logo-text em{font-size:11px;letter-spacing:.16em;}
  .main-nav{top:64px;max-height:calc(100vh - 64px);}
  .article-hero{padding:32px 0 26px;}
  .article-title{font-size:clamp(25px,6.4vw,34px);}
  .article-lead{font-size:15.5px;}
  .article-main{padding:36px 0 56px;}
  .article-card{padding:26px 20px 24px;border-radius:16px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:22px;margin:32px 0 14px;}
  .article-body h3{font-size:18px;}
  .breadcrumb .current{max-width:200px;}
  .related-grid{grid-template-columns:minmax(0,1fr);gap:18px;}
  .section{padding:0 0 52px;}
  .cta-block{padding:36px 24px;border-radius:20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;min-width:140px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:28px;}
  .site-footer{padding:48px 0 24px;}
}
@media (max-width:480px){
  .article-meta{gap:8px;}
  .meta-pill{padding:6px 12px;font-size:12.5px;}
  .article-actions .btn{width:100%;}
  .logo-text em{display:none;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --brand:#0FBF9F;
  --brand-deep:#00A884;
  --brand-soft:#E6F7F2;
  --accent:#FF8A3D;
  --accent-soft:#FFF1E7;
  --bg:#F7F8F4;
  --card:#FFFFFF;
  --dark:#0B1F1C;
  --dark-2:#123028;
  --border:#E3E8E2;
  --text:#17211F;
  --muted:#5E6E68;
  --success:#16A34A;
  --warn:#E5484D;
  --radius-card:18px;
  --radius-btn:999px;
  --radius-input:12px;
  --radius-img:16px;
  --shadow:0 12px 30px rgba(11,31,28,.08);
  --shadow-hover:0 18px 44px rgba(11,31,28,.14);
  --section-gap:88px;
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;letter-spacing:-.01em}
p{margin:0}
::selection{background:var(--brand-soft);color:var(--dark)}
:focus-visible{outline:3px solid rgba(15,191,159,.45);outline-offset:2px;border-radius:6px}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:16px;font-weight:600;line-height:1.2;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,border-color .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand-deep);color:#fff;box-shadow:0 10px 24px rgba(0,168,132,.24)}
.btn-primary:hover{background:#069176;transform:translateY(-2px);box-shadow:0 16px 34px rgba(0,168,132,.32)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 16px rgba(0,168,132,.24)}
.btn-ghost{background:#fff;color:var(--dark);border-color:var(--border)}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-soft);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 24px rgba(255,138,61,.28)}
.btn-accent:hover{background:#f0761f;transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,138,61,.34)}
.btn-sm{padding:10px 20px;font-size:14.5px}
.btn-lg{padding:17px 34px;font-size:17px}
.btn[disabled],.btn.is-disabled{background:#D8DEDA;color:#8A968F;box-shadow:none;cursor:not-allowed;transform:none}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;gap:26px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#fff;font-weight:800;font-size:19px;letter-spacing:0;
}
.logo-text{display:flex;flex-direction:column;line-height:1.12}
.logo-text strong{font-size:16px;font-weight:800;letter-spacing:.01em}
.logo-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.16em}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  padding:8px 16px;border-radius:var(--radius-btn);font-size:15px;color:var(--muted);
  transition:color .2s ease,background-color .2s ease;
}
.nav-link:hover{color:var(--brand-deep);background:var(--brand-soft)}
.nav-link.active{color:var(--brand-deep);background:var(--brand-soft);font-weight:600}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--border);border-radius:12px;background:#fff;
  flex-direction:column;justify-content:center;align-items:center;gap:5px;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 内页首屏 ---------- */
.page-hero{
  position:relative;color:#fff;padding:64px 0 82px;
  background-image:linear-gradient(115deg,rgba(11,31,28,.92) 0%,rgba(11,31,28,.78) 46%,rgba(11,31,28,.55) 100%),url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:1px;background:rgba(255,255,255,.12);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.7);margin-bottom:26px}
.breadcrumb a{color:rgba(255,255,255,.82)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(255,255,255,.38)}
.breadcrumb .current{color:#fff;font-weight:600}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:48px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--radius-btn);
  background:rgba(15,191,159,.16);border:1px solid rgba(15,191,159,.42);
  color:#8BF0D9;font-size:13.5px;font-weight:600;letter-spacing:.02em;margin-bottom:22px;
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--brand);display:block}
.page-hero h1{font-size:clamp(30px,4vw,50px);line-height:1.2;letter-spacing:-.02em;margin-bottom:20px}
.page-hero h1 span{color:var(--brand)}
.hero-lead{font-size:17.5px;line-height:1.85;color:rgba(255,255,255,.82);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-quick{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  border-radius:22px;padding:28px;backdrop-filter:blur(6px);
}
.hero-quick h3{font-size:17px;margin-bottom:6px}
.hero-quick .sub{font-size:13.5px;color:rgba(255,255,255,.62);margin-bottom:18px}
.quick-list li{
  display:flex;align-items:flex-start;gap:12px;padding:13px 0;
  border-bottom:1px dashed rgba(255,255,255,.16);font-size:14.5px;
}
.quick-list li:last-child{border-bottom:0;padding-bottom:0}
.quick-list .k{color:rgba(255,255,255,.6);min-width:82px;flex-shrink:0}
.quick-list .v{color:#fff;font-weight:500}

/* ---------- 锚点布局 ---------- */
.section{padding:var(--section-gap) 0}
.section-tight{padding-top:64px}
.guide-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:56px;align-items:start}
.side-nav{position:sticky;top:96px}
.side-nav .side-title{font-size:13px;letter-spacing:.16em;color:var(--muted);margin-bottom:14px;font-weight:700}
.side-nav ul{display:flex;flex-direction:column;gap:4px}
.side-nav a{
  display:block;padding:10px 16px;border-radius:12px;font-size:15px;color:var(--muted);
  border-left:3px solid transparent;transition:all .2s ease;
}
.side-nav a:hover{color:var(--brand-deep);background:var(--brand-soft)}
.side-nav a.active{color:var(--brand-deep);background:var(--brand-soft);border-left-color:var(--brand);font-weight:600}
.side-note{
  margin-top:24px;padding:20px;border-radius:16px;background:#fff;border:1px solid var(--border);box-shadow:var(--shadow);
}
.side-note h4{font-size:15px;margin-bottom:8px}
.side-note p{font-size:14px;color:var(--muted);line-height:1.75}

/* ---------- 板块标题 ---------- */
.section-head{max-width:760px;margin-bottom:40px}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.18em;color:var(--brand-deep);
  background:var(--brand-soft);padding:5px 12px;border-radius:var(--radius-btn);margin-bottom:16px;
}
.section-head h2{font-size:clamp(25px,3vw,38px);margin-bottom:14px;letter-spacing:-.02em}
.section-head p{color:var(--muted);font-size:16.5px}

/* ---------- 核对卡片 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.check-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow);transition:transform .24s ease,box-shadow .24s ease;
}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.check-card .ico{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand-deep);font-weight:800;font-size:18px;margin-bottom:16px;
}
.check-card h3{font-size:19px;margin-bottom:10px}
.check-card p{font-size:15.5px;color:var(--muted);line-height:1.8}
.check-card.wide{grid-column:span 2;display:grid;grid-template-columns:1fr 280px;gap:28px;align-items:center}
.check-card.wide img{height:180px;object-fit:cover;width:100%}

/* ---------- 步骤时间线 ---------- */
.step-flow{display:flex;flex-direction:column;gap:18px;counter-reset:step}
.step-item{
  position:relative;display:grid;grid-template-columns:auto minmax(0,1fr);gap:20px;
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:26px 28px;box-shadow:var(--shadow);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.step-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(15,191,159,.5)}
.step-num{
  width:48px;height:48px;border-radius:16px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#fff;font-weight:800;font-size:18px;
  font-family:Inter,"Noto Sans SC",sans-serif;
}
.step-item h3{font-size:19.5px;margin-bottom:8px}
.step-item p{font-size:15.5px;color:var(--muted);line-height:1.8}
.step-tag{
  display:inline-block;margin-top:12px;font-size:13px;font-weight:600;color:var(--brand-deep);
  background:var(--brand-soft);padding:4px 12px;border-radius:var(--radius-btn);
}

/* ---------- 清单 ---------- */
.check-list li{
  display:flex;gap:12px;align-items:flex-start;padding:15px 0;border-bottom:1px dashed var(--border);
  font-size:15.5px;color:var(--text);
}
.check-list li:last-child{border-bottom:0}
.check-list li::before{
  content:"✓";flex-shrink:0;width:22px;height:22px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand-deep);font-size:13px;font-weight:800;
  display:grid;place-items:center;margin-top:3px;
}

/* ---------- 设备差异 ---------- */
.device-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}
.device-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow);transition:transform .24s ease,box-shadow .24s ease;
}
.device-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.device-card img{width:100%;height:200px;object-fit:cover;border-radius:0}
.device-body{padding:24px}
.device-body h3{font-size:19px;margin-bottom:10px}
.device-body p{font-size:15.5px;color:var(--muted);line-height:1.8}
.device-card.full{grid-column:span 2;display:grid;grid-template-columns:300px minmax(0,1fr);align-items:center}
.device-card.full img{height:100%;min-height:230px}
.device-card.full .device-body{padding:32px}

/* ---------- 自检表 ---------- */
.diag{padding:6px 0}
.diag-head,.diag-row{display:grid;grid-template-columns:.9fr 1.1fr 1.2fr;gap:20px;align-items:start}
.diag-head{
  padding:14px 24px;font-size:13.5px;font-weight:700;letter-spacing:.1em;color:var(--muted);
  background:#EEF2ED;border-radius:14px 14px 0 0;
}
.diag-row{padding:22px 24px;border-bottom:1px solid var(--border);background:#fff;font-size:15.5px}
.diag-row:last-child{border-bottom:0;border-radius:0 0 14px 14px}
.diag-row .sym{font-weight:600;color:var(--text)}
.diag-row .cause{color:var(--muted)}
.diag-row .fix{color:var(--brand-deep);font-weight:500}
.diag{border:1px solid var(--border);border-radius:14px;overflow:hidden;box-shadow:var(--shadow);background:#fff}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:14px;overflow:hidden;
  transition:border-color .24s ease,box-shadow .24s ease;
}
.faq-item:hover{border-color:rgba(15,191,159,.55)}
.faq-item.open{border-left:3px solid var(--brand);box-shadow:var(--shadow)}
.faq-q{
  width:100%;background:none;border:0;padding:20px 24px;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:16.5px;font-weight:600;color:var(--text);
}
.faq-q .faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;background:var(--brand-soft);color:var(--brand-deep);
  display:grid;place-items:center;font-size:16px;font-weight:700;transition:transform .28s ease,background-color .28s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--brand);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a-inner{padding:0 24px 22px;font-size:15.5px;line-height:1.85;color:var(--muted)}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--dark) 0%,var(--dark-2) 100%);
  border-radius:26px;padding:52px 48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(15,191,159,.35),transparent 68%);
}
.cta-band h2{font-size:clamp(23px,2.6vw,32px);margin-bottom:12px;position:relative;z-index:1}
.cta-band p{color:rgba(255,255,255,.75);font-size:16px;max-width:620px;position:relative;z-index:1}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1}
.cta-band .btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.28)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.16);border-color:var(--brand)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:72px 0 32px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px}
.footer-brand .logo-text strong{color:#fff;font-size:18px;display:block}
.footer-brand .logo-text em{color:var(--brand);letter-spacing:.16em}
.footer-brand p{margin-top:16px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.6);max-width:380px}
.footer-col h4{color:#fff;font-size:15.5px;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li,.footer-col li span{font-size:14.5px;color:rgba(255,255,255,.62)}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.62);transition:color .2s ease}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.52);
}
.footer-bottom a{color:rgba(255,255,255,.7)}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;width:48px;height:48px;border-radius:50%;border:1px solid var(--border);
  background:#fff;color:var(--brand-deep);font-size:19px;box-shadow:var(--shadow);
  display:grid;place-items:center;opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all .28s ease;z-index:70;
}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--brand-deep);color:#fff;box-shadow:var(--shadow-hover)}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .hero-grid{gap:36px}
  .guide-layout{grid-template-columns:210px minmax(0,1fr);gap:40px}
}
@media (max-width:992px){
  :root{--section-gap:72px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-quick{max-width:560px}
  .guide-layout{grid-template-columns:1fr;gap:28px}
  .side-nav{position:static;top:auto;border:1px solid var(--border);border-radius:16px;background:#fff;padding:16px 8px;box-shadow:var(--shadow)}
  .side-nav .side-title{padding:0 12px;margin-bottom:10px}
  .side-nav ul{flex-direction:row;overflow-x:auto;gap:8px;padding:0 8px 4px;scrollbar-width:none}
  .side-nav ul::-webkit-scrollbar{display:none}
  .side-nav a{white-space:nowrap;border-left:0;border-bottom:3px solid transparent;border-radius:10px;padding:8px 14px}
  .side-nav a.active{border-left:0;border-bottom-color:var(--brand)}
  .side-note{margin-top:16px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .device-card.full{grid-column:span 2;grid-template-columns:240px minmax(0,1fr)}
}
@media (max-width:768px){
  :root{--section-gap:52px}
  .container{padding:0 20px}
  .header-inner{height:64px;gap:12px}
  .main-nav{
    position:fixed;top:64px;right:0;bottom:0;width:min(320px,86vw);margin-left:0;
    flex-direction:column;align-items:stretch;gap:6px;background:#fff;padding:24px 20px;
    box-shadow:-16px 0 40px rgba(11,31,28,.16);transform:translateX(102%);
    transition:transform .3s ease;overflow-y:auto;
  }
  .main-nav.open{transform:translateX(0)}
  .main-nav .nav-link{padding:14px 16px;font-size:16px}
  .nav-toggle{display:flex}
  .header-actions .btn-sm{display:none}
  .page-hero{padding:44px 0 60px}
  .page-hero h1{font-size:clamp(26px,7vw,34px)}
  .hero-lead{font-size:16px}
  .hero-actions .btn{width:100%}
  .check-grid{grid-template-columns:1fr}
  .check-card.wide{grid-column:span 1;grid-template-columns:1fr}
  .check-card.wide img{height:170px}
  .device-grid{grid-template-columns:1fr}
  .device-card.full{grid-column:span 1;grid-template-columns:1fr}
  .device-card.full img{min-height:180px;height:180px}
  .diag-head{display:none}
  .diag-row{grid-template-columns:1fr;gap:6px;padding:20px}
  .diag-row .cause::before{content:"原因：";color:var(--muted);font-weight:600}
  .diag-row .fix::before{content:"处理：";color:var(--brand-deep);font-weight:600}
  .cta-band{padding:34px 26px;border-radius:20px}
  .cta-band .cta-actions{width:100%}
  .cta-band .cta-actions .btn{flex:1}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .to-top{right:16px;bottom:18px;width:44px;height:44px}
}
@media (max-width:480px){
  body{font-size:16px}
  .page-hero h1{font-size:27px}
  .section-head h2{font-size:25px}
  .step-item{padding:20px;gap:14px}
  .step-num{width:42px;height:42px;font-size:16px;border-radius:13px}
  .hero-quick{padding:22px}
  .quick-list li{flex-direction:column;gap:2px}
  .quick-list .k{min-width:0}
}

/* roulang page: category2 */
:root{
  --primary:#00A884;
  --primary-dark:#009273;
  --primary-light:#E6F7F2;
  --accent:#FF8A3D;
  --bg:#F7F8F4;
  --card:#FFFFFF;
  --ink:#17211F;
  --dark:#0B1F1C;
  --muted:#5E6E68;
  --border:#E3E8E2;
  --success:#16A34A;
  --danger:#E5484D;
  --danger-light:#FDECEC;
  --radius-card:18px;
  --radius-btn:999px;
  --radius-input:12px;
  --radius-img:16px;
  --shadow:0 12px 30px rgba(11,31,28,.08);
  --shadow-hover:0 18px 44px rgba(11,31,28,.14);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--primary);text-decoration:none;transition:color .25s,border-color .25s,background-color .25s}
p a:hover,li a:hover{text-decoration:underline}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.2px}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:var(--primary-light);color:var(--dark)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--dark{background:var(--dark);color:#E7F0ED}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:2px;font-weight:600;
  color:var(--primary);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--primary);border-radius:2px}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:clamp(26px,3vw,38px);margin:14px 0 14px}
.section-head p{color:var(--muted);margin:0;font-size:16px}
.section--dark .section-head p{color:#A9C2BC}
.section--dark .eyebrow{color:#4FE0BF}
.section--dark .eyebrow::before{background:#4FE0BF}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);
  padding:14px 28px;font-size:16px;font-weight:600;
  border:1px solid transparent;
  transition:transform .25s,box-shadow .25s,background-color .25s,color .25s,border-color .25s;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px rgba(0,168,132,.28)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(0,168,132,.34)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;color:var(--dark);border-color:var(--border);box-shadow:0 6px 16px rgba(11,31,28,.05)}
.btn-ghost:hover{border-color:var(--primary);background:var(--primary-light);color:var(--primary-dark)}
.btn-light{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.45)}
.btn-light:hover{background:#fff;color:var(--dark);border-color:#fff}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 24px rgba(255,138,61,.3)}
.btn-accent:hover{background:#F2762A;color:#fff;transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn:focus-visible{outline:3px solid rgba(0,168,132,.45);outline-offset:3px}
.btn[disabled],.btn:disabled{background:#D7DEDA;color:#8A9893;box-shadow:none;cursor:not-allowed;transform:none}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);flex-shrink:0}
.logo:hover{color:var(--ink)}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,#0FBF9F,#00A884);
  color:#fff;display:grid;place-items:center;
  font-size:18px;font-weight:700;
  box-shadow:0 8px 18px rgba(0,168,132,.3);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:16px;letter-spacing:.5px}
.logo-text em{font-style:normal;font-size:12px;letter-spacing:3px;color:var(--muted)}
.main-nav{
  display:flex;align-items:center;gap:6px;
  background:#F1F4EF;padding:6px;border-radius:var(--radius-btn);
}
.nav-link{padding:8px 16px;border-radius:var(--radius-btn);font-size:15px;color:var(--ink);white-space:nowrap}
.nav-link:hover{background:#fff;color:var(--primary-dark)}
.nav-link.active{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(0,168,132,.26)}
.nav-link:focus-visible{outline:3px solid rgba(0,168,132,.4);outline-offset:2px}
.header-actions{display:flex;align-items:center;gap:12px;position:relative;z-index:130}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--border);
  background:#fff;border-radius:12px;position:relative;
}
.nav-toggle span{position:absolute;left:12px;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s,opacity .25s}
.nav-toggle span:nth-child(1){top:15px}
.nav-toggle span:nth-child(2){top:21px}
.nav-toggle span:nth-child(3){top:27px}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
body.nav-open{overflow:hidden}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  color:#fff;padding:92px 0 84px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(11,31,28,.94) 0%,rgba(11,31,28,.82) 46%,rgba(11,31,28,.45) 100%);
}
.hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;
  border-radius:50%;background:radial-gradient(circle,rgba(0,168,132,.4),transparent 68%);
}
.hero-inner{position:relative;z-index:2;max-width:840px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--radius-btn);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);
  font-size:13px;letter-spacing:1px;color:#CFF3E9;
}
.hero-badge i{width:8px;height:8px;border-radius:50%;background:#4FE0BF;display:inline-block}
.hero h1{font-size:clamp(30px,4.4vw,52px);margin:22px 0 20px;letter-spacing:.5px}
.hero h1 span{color:#4FE0BF}
.hero-lead{font-size:17px;line-height:1.85;color:#CFE1DC;margin:0 0 30px;max-width:680px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:var(--radius-btn);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);
  font-size:13px;color:#D8EBE5;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;padding-top:26px;border-top:1px solid rgba(255,255,255,.16)}
.hero-stat strong{display:block;font-family:Inter,"Noto Sans SC",sans-serif;font-size:26px;color:#fff;line-height:1.2}
.hero-stat span{font-size:13px;color:#A9C2BC}

/* ---------- 锚点标签 ---------- */
.anchor-bar{
  position:sticky;top:72px;z-index:60;
  background:rgba(247,248,244,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.anchor-scroll{display:flex;gap:10px;overflow-x:auto;padding:14px 0;scrollbar-width:none}
.anchor-scroll::-webkit-scrollbar{display:none}
.anchor-link{
  flex-shrink:0;padding:8px 18px;border-radius:var(--radius-btn);
  background:#fff;border:1px solid var(--border);color:var(--muted);
  font-size:14px;white-space:nowrap;transition:.25s;
}
.anchor-link:hover{border-color:var(--primary);color:var(--primary-dark);background:var(--primary-light)}
.anchor-link.is-current{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 8px 18px rgba(0,168,132,.24)}

/* ---------- 两列布局 ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 336px;gap:44px;align-items:start}
.main-col{min-width:0}
.side-col{display:grid;gap:22px;position:sticky;top:150px}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px}
.faq-item{
  background:var(--card);
  border:1px solid var(--border);
  border-left:3px solid transparent;
  border-radius:14px;
  padding:0 22px;
  transition:border-color .25s,box-shadow .25s,transform .25s;
}
.faq-item:hover{box-shadow:var(--shadow)}
.faq-item[open]{border-left-color:var(--primary);box-shadow:var(--shadow)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:flex-start;gap:14px;
  padding:20px 0;font-weight:600;font-size:17px;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  background:var(--primary-light);color:var(--primary-dark);
  display:grid;place-items:center;font-size:16px;font-weight:700;
  transition:transform .3s,background-color .3s,color .3s;
  margin-top:2px;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff}
.faq-body{padding:0 0 22px 40px;color:var(--muted);font-size:16px;line-height:1.8}
.faq-body p{margin:0 0 12px}
.faq-body p:last-child{margin-bottom:0}
.faq-body ul{display:grid;gap:8px;margin:12px 0}
.faq-body li{position:relative;padding-left:18px}
.faq-body li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:var(--primary)}
.faq-item:focus-within{border-color:var(--primary)}

/* ---------- 侧栏卡片 ---------- */
.side-card{
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius-card);padding:24px;
  box-shadow:var(--shadow);
}
.side-card h3{font-size:17px;margin-bottom:16px}
.side-list{display:grid;gap:10px}
.side-link{
  display:flex;align-items:center;gap:12px;
  padding:12px 14px;border-radius:12px;
  background:#F6F8F4;border:1px solid transparent;
  color:var(--ink);font-size:15px;
  transition:.25s;
}
.side-link:hover{background:var(--primary-light);border-color:var(--primary);color:var(--primary-dark);transform:translateX(3px)}
.side-link i{
  width:32px;height:32px;border-radius:10px;flex-shrink:0;
  background:#fff;color:var(--primary-dark);
  display:grid;place-items:center;font-style:normal;font-weight:700;font-size:14px;
  border:1px solid var(--border);
}
.side-card--accent{
  background:linear-gradient(160deg,#0FBF9F,#009273);
  border-color:transparent;color:#fff;
}
.side-card--accent h3{color:#fff}
.side-card--accent p{font-size:14px;line-height:1.8;color:#DDF6EF;margin:0 0 18px}
.side-card--accent .btn{width:100%}
.side-note{font-size:13px;color:var(--muted);margin:14px 0 0;line-height:1.7}

/* ---------- 安全卡网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:22px}
.info-card{
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius-card);padding:28px;
  box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s,border-color .3s;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#CFE7DF}
.info-icon{
  width:48px;height:48px;border-radius:14px;
  background:var(--primary-light);color:var(--primary-dark);
  display:grid;place-items:center;font-size:20px;font-weight:700;margin-bottom:18px;
}
.info-card h3{font-size:19px;margin-bottom:10px}
.info-card p{color:var(--muted);font-size:15px;line-height:1.8;margin:0 0 16px}
.micro-link{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.micro-link:hover{gap:10px;text-decoration:none}

/* ---------- 警示框 ---------- */
.warn-box{
  background:var(--danger-light);
  border:1px solid #F7C9C9;
  border-left:4px solid var(--danger);
  border-radius:14px;padding:24px 26px;
}
.warn-box h3{font-size:18px;color:#9E2024;margin-bottom:10px}
.warn-box p{margin:0 0 12px;color:#7A3B3D;font-size:15px;line-height:1.8}
.warn-box p:last-child{margin-bottom:0}
.risk-list{display:grid;gap:12px;margin-top:6px}
.risk-list li{
  display:flex;gap:12px;align-items:flex-start;
  background:#fff;border:1px solid #F2DADA;border-radius:12px;padding:14px 16px;
  font-size:15px;color:var(--ink);
}
.risk-list span{
  flex-shrink:0;width:24px;height:24px;border-radius:50%;
  background:var(--danger);color:#fff;font-size:13px;
  display:grid;place-items:center;font-weight:700;margin-top:2px;
}

/* ---------- 时间线 ---------- */
.timeline{display:grid;gap:0;margin-top:8px}
.step-item{
  display:grid;grid-template-columns:56px minmax(0,1fr);gap:22px;
  padding-bottom:30px;position:relative;
}
.step-item::before{
  content:"";position:absolute;left:27px;top:52px;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--primary),#D6E8E2);
}
.step-item:last-child{padding-bottom:0}
.step-item:last-child::before{display:none}
.step-num{
  width:54px;height:54px;border-radius:18px;
  background:var(--card);border:1px solid var(--border);
  color:var(--primary-dark);display:grid;place-items:center;
  font-family:Inter,"Noto Sans SC",sans-serif;font-size:20px;font-weight:700;
  box-shadow:var(--shadow);position:relative;z-index:2;
}
.step-item.is-active .step-num{background:var(--primary);color:#fff;border-color:var(--primary)}
.step-body{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);padding:22px 24px;box-shadow:var(--shadow)}
.step-body h3{font-size:18px;margin-bottom:8px}
.step-body p{color:var(--muted);font-size:15px;line-height:1.8;margin:0}
.step-item.is-active .step-body{border-color:#B7E5D8}

.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:44px;align-items:center}
.media-card{
  border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--border);box-shadow:var(--shadow);background:#fff;
}
.media-card img{border-radius:0;width:100%;object-fit:cover;aspect-ratio:16/10}
.media-card figcaption{padding:14px 18px;font-size:13px;color:var(--muted);background:#fff}
.check-list{display:grid;gap:12px;margin:0 0 26px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--muted)}
.check-list strong{color:var(--ink);font-weight:600}
.check-mark{
  flex-shrink:0;width:24px;height:24px;border-radius:50%;
  background:var(--primary-light);color:var(--primary-dark);
  display:grid;place-items:center;font-size:13px;font-weight:700;margin-top:3px;
}

/* ---------- 数据徽章 ---------- */
.badge-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.badge-card{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-card);padding:24px;
  transition:background-color .3s,transform .3s;
}
.badge-card:hover{background:rgba(255,255,255,.1);transform:translateY(-3px)}
.badge-card strong{display:block;font-size:26px;font-family:Inter,"Noto Sans SC",sans-serif;color:#4FE0BF;line-height:1.2}
.badge-card span{display:block;margin-top:6px;font-size:14px;color:#B7CEC8}
.badge-card p{margin:10px 0 0;font-size:14px;color:#93ADA7;line-height:1.8}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:linear-gradient(120deg,#0B1F1C 0%,#0F3A33 60%,#0B1F1C 100%);
  color:#fff;border-radius:24px;padding:52px 48px;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;bottom:-110px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,168,132,.45),transparent 70%);
}
.cta-band h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:12px;position:relative;z-index:2}
.cta-band p{margin:0;color:#B7CEC8;font-size:16px;max-width:640px;position:relative;z-index:2}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#C7D6D1;padding:72px 0 28px;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo-text strong{color:#fff;font-size:20px}
.footer-brand .logo-text em{color:#7FBFAE;font-size:13px;letter-spacing:3px}
.footer-brand p{margin:18px 0 0;font-size:14px;line-height:1.9;color:#9DB4AE;max-width:340px}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:18px}
.footer-col ul{display:grid;gap:12px}
.footer-col a,.footer-col span{color:#9DB4AE;font-size:14px}
.footer-col a:hover{color:#4FE0BF;text-decoration:none}
.footer-bottom{
  margin-top:48px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:14px;color:#8AA29C;
}
.footer-bottom a{color:#9DB4AE}
.footer-bottom a:hover{color:#4FE0BF;text-decoration:none}

/* ---------- 移动端转化条 & 返回顶部 ---------- */
.mobile-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  display:none;align-items:center;gap:10px;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(255,255,255,.98);
  border-top:1px solid var(--border);
  box-shadow:0 -8px 24px rgba(11,31,28,.1);
}
.mobile-cta .btn{flex:1;padding:12px 10px;font-size:15px}
.mobile-cta .btn-top{
  flex-shrink:0;width:46px;height:46px;border-radius:14px;
  border:1px solid var(--border);background:#fff;color:var(--dark);
  display:grid;place-items:center;font-size:16px;
}
.back-top{
  position:fixed;right:26px;bottom:26px;z-index:80;
  width:48px;height:48px;border-radius:16px;
  background:var(--primary);color:#fff;
  display:grid;place-items:center;font-size:18px;
  box-shadow:0 14px 30px rgba(0,168,132,.34);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:.3s;
}
.back-top.is-visible{opacity:1;visibility:visible;transform:none}
.back-top:hover{background:var(--primary-dark);color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .layout{grid-template-columns:minmax(0,1fr) 300px;gap:32px}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr 1fr;gap:30px}
}
@media (max-width:992px){
  .section{padding:68px 0}
  .nav-toggle{display:block}
  .main-nav{
    position:fixed;top:0;right:0;height:100vh;width:84%;max-width:330px;
    flex-direction:column;align-items:stretch;gap:8px;
    background:#fff;border-radius:0;padding:92px 24px 32px;
    transform:translateX(101%);transition:transform .32s ease;
    box-shadow:-20px 0 50px rgba(11,31,28,.14);
    z-index:120;overflow-y:auto;
  }
  .main-nav.is-open{transform:none}
  .nav-link{padding:14px 16px;border-radius:12px;font-size:16px}
  .nav-link:hover{background:var(--primary-light)}
  .nav-link.active{background:var(--primary);color:#fff}
  .layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .side-col{position:static}
  .split{grid-template-columns:minmax(0,1fr);gap:28px}
  .cta-band{grid-template-columns:minmax(0,1fr);padding:42px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:768px){
  body{font-size:16px;line-height:1.8}
  .container{padding:0 20px}
  .section{padding:52px 0}
  .hero{padding:64px 0 60px}
  .hero-lead{font-size:16px}
  .hero-stats{gap:24px}
  .hero-stat strong{font-size:22px}
  .header-inner{height:66px}
  .logo-text em{letter-spacing:2px}
  .faq-item{padding:0 18px}
  .faq-body{padding-left:0}
  .cta-band{padding:36px 24px;border-radius:20px}
  .site-footer{padding-bottom:118px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-brand p{max-width:none}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .mobile-cta{display:flex}
  .back-top{bottom:86px;right:18px}
}
@media (max-width:480px){
  .hero h1{font-size:30px}
  .hero-actions .btn{width:100%}
  .hero-tags{gap:8px}
  .tag{font-size:12px;padding:6px 12px}
  .step-item{grid-template-columns:44px minmax(0,1fr);gap:16px}
  .step-num{width:44px;height:44px;border-radius:14px;font-size:17px}
  .step-item::before{left:21px;top:44px}
  .info-card{padding:22px}
}