/* roulang page: index */
:root{
  --brand-900:#0B2A26;
  --brand-700:#0E3B34;
  --brand-500:#17705C;
  --brand-400:#1E9E7C;
  --brand-300:#3FCB9A;
  --accent-500:#F0932B;
  --accent-400:#FFB648;
  --danger:#E5533D;
  --bg:#F5F2EA;
  --surface:#FFFFFF;
  --surface-2:#EFE9DE;
  --line:#E2DACB;
  --text:#1B2A26;
  --text-2:#5C6B66;
  --text-3:#8D9A95;
  --cream:#F2EFE6;
  --grad-brand:linear-gradient(135deg,#0E3B34 0%,#17705C 46%,#3FCB9A 100%);
  --grad-hot:linear-gradient(120deg,#F0932B 0%,#FFB648 100%);
  --sh-1:0 1px 2px rgba(11,42,38,.06);
  --sh-2:0 8px 24px rgba(11,42,38,.06);
  --sh-3:0 18px 44px rgba(11,42,38,.12);
  --r-lg:28px;
  --r-md:20px;
  --r-sm:12px;
  --r-input:14px;
  --ease:cubic-bezier(.2,.8,.2,1);
  --sidebar:236px;
  --pad-sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--brand-400);outline-offset:2px}
button{font:inherit;border:0;background:none;cursor:pointer}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
svg{display:block}
table{border-collapse:collapse;width:100%}
.num{font-variant-numeric:tabular-nums}
::selection{background:rgba(30,158,124,.22)}

/* ---------- 布局骨架 ---------- */
.shell{margin-left:var(--sidebar);min-height:100vh;display:flex;flex-direction:column}
.container{width:100%;max-width:1120px;margin:0 auto;padding:0 32px}
.section{padding:var(--pad-sec) 0}
.section-tight{padding:52px 0}

/* ---------- 左侧导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar);
  background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:20px 16px 18px;z-index:60;
  transition:width .2s var(--ease),transform .25s var(--ease);
}
.brand{display:flex;align-items:center;gap:10px;padding:4px 8px 20px;border-bottom:1px solid var(--line);margin-bottom:16px}
.brand-mark{
  width:38px;height:38px;flex:none;border-radius:12px;background:var(--grad-brand);
  display:grid;place-items:center;color:#fff;box-shadow:0 6px 16px rgba(14,59,52,.28);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:17px;font-weight:700;color:var(--brand-700);letter-spacing:-.01em;white-space:nowrap}
.side-nav{display:flex;flex-direction:column;gap:4px;flex:1;overflow-y:auto;overflow-x:hidden}
.side-link{
  position:relative;display:flex;align-items:center;gap:12px;height:46px;padding:0 12px;border-radius:12px;
  color:var(--text-2);font-size:15px;white-space:nowrap;transition:background .2s var(--ease),color .2s var(--ease);
}
.side-link svg{width:18px;height:18px;flex:none}
.side-link:hover{background:var(--surface-2);color:var(--brand-700)}
.side-link.is-active{background:var(--surface-2);color:var(--brand-700);font-weight:600}
.side-link.is-active::before{
  content:"";position:absolute;left:-16px;top:9px;bottom:9px;width:4px;border-radius:0 4px 4px 0;background:var(--grad-brand);
}
.side-foot{border-top:1px solid var(--line);padding-top:16px;margin-top:16px;display:flex;flex-direction:column;gap:10px}
.side-foot .btn{height:46px}
.side-note{font-size:12px;color:var(--text-3);text-align:center;line-height:1.6}
.side-copy{font-size:12px;color:var(--text-3);text-align:center;line-height:1.6}

/* ---------- 移动顶栏 ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;background:rgba(255,255,255,.95);
  border-bottom:1px solid var(--line);align-items:center;justify-content:space-between;padding:0 16px;z-index:70;
}
.topbar .brand{padding:0;border:0;margin:0}
.topbar .brand-mark{width:34px;height:34px;border-radius:10px}
.menu-btn{width:44px;height:44px;display:grid;place-items:center;border-radius:12px;background:var(--surface-2);color:var(--brand-700)}
.menu-btn svg{width:22px;height:22px}
.mask{
  position:fixed;inset:0;background:rgba(11,42,38,.45);opacity:0;pointer-events:none;
  transition:opacity .25s var(--ease);z-index:65;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:14px;font-size:16px;font-weight:600;
  border:1px solid transparent;white-space:nowrap;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),filter .2s var(--ease);
}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-3)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:var(--surface);color:var(--brand-700);border-color:var(--line)}
.btn-ghost:hover{background:var(--surface-2);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-hot{background:var(--grad-hot);color:#3A2606}
.btn-hot:hover{transform:translateY(-2px);filter:brightness(1.06)}
.btn-lg{height:52px;padding:0 28px}
.btn-block{width:100%}
.btn:disabled{opacity:.6;cursor:not-allowed;transform:none!important}
.btn .spin{width:16px;height:16px;animation:spin .9s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-soft{background:var(--surface-2);color:var(--brand-700)}
.badge-hot{background:var(--grad-hot);color:#3A2606}
.badge-dark{background:var(--brand-900);color:var(--cream)}

/* ---------- 卡片 ---------- */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-3)}

/* ---------- 区块标题组 ---------- */
.sec-head{margin-bottom:32px}
.rule{display:block;width:40px;height:3px;border-radius:3px;background:var(--grad-brand);margin-bottom:14px}
.sec-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.25}
.sec-head .sub{margin-top:10px;font-size:15px;color:var(--text-2);max-width:720px}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--brand-400);font-size:14px;font-weight:600}
.link-more svg{width:15px;height:15px;transition:transform .2s var(--ease)}
.link-more:hover{color:var(--brand-500)}
.link-more:hover svg{transform:translateX(4px)}

/* ---------- Hero ---------- */
.hero{position:relative;padding:76px 0 64px;overflow:hidden}
.hero::before{
  content:"";position:absolute;top:-180px;right:-140px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(63,203,154,.20) 0%,rgba(63,203,154,0) 68%);pointer-events:none;
}
.hero::after{
  content:"";position:absolute;bottom:-200px;left:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,147,43,.13) 0%,rgba(240,147,43,0) 70%);pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero-copy h1{font-size:clamp(28px,4.2vw,46px);font-weight:700;line-height:1.18;margin:18px 0 0}
.hero-sub{margin-top:18px;font-size:16px;color:var(--text-2);max-width:560px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.trust{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;font-size:12px;color:var(--text-2)}
.trust li{display:flex;align-items:center;gap:6px}
.trust svg{width:14px;height:14px;color:var(--brand-400);flex:none}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--r-lg);
  background:var(--surface-2);box-shadow:var(--sh-3);
  animation:fadeIn .6s var(--ease) both;
}
.hero-visual::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-lg);
  background:linear-gradient(140deg,rgba(11,42,38,.28) 0%,rgba(11,42,38,0) 58%);pointer-events:none;
}
.hero-stat{
  position:absolute;left:-22px;bottom:-22px;z-index:2;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:16px 22px;box-shadow:var(--sh-3);min-width:150px;
}
.hero-stat strong{display:block;font-size:26px;font-weight:700;line-height:1.2;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;font-variant-numeric:tabular-nums}
.hero-stat span{display:block;font-size:12px;color:var(--text-2);margin-top:2px}
@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* ---------- 数据徽章条 ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{
  display:flex;align-items:center;gap:14px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:18px 20px;box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.stat:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.stat-icon{
  width:40px;height:40px;flex:none;border-radius:50%;background:var(--grad-brand);display:grid;place-items:center;color:#fff;
  transition:transform .25s var(--ease);
}
.stat:hover .stat-icon{transform:rotate(6deg)}
.stat-icon svg{width:18px;height:18px}
.stat strong{display:block;font-size:19px;font-weight:700;line-height:1.3;font-variant-numeric:tabular-nums}
.stat span{display:block;font-size:13px;color:var(--text-2)}

/* ---------- 接入阶梯 ---------- */
.ladder{display:flex;flex-direction:column;gap:0}
.ladder-item{position:relative;display:grid;grid-template-columns:28px 1fr;gap:22px;padding-bottom:20px}
.ladder-item:last-child{padding-bottom:0}
.ladder-item::before{
  content:"";position:absolute;left:13px;top:28px;bottom:-2px;width:2px;background:var(--line);
}
.ladder-item:last-child::before{display:none}
.ladder-dot{
  width:28px;height:28px;border-radius:50%;background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;font-size:12px;font-weight:700;font-variant-numeric:tabular-nums;z-index:1;
}
.ladder-item:last-child .ladder-dot{background:var(--accent-500)}
.ladder-card{
  display:grid;grid-template-columns:1fr auto;gap:12px 24px;align-items:center;
  padding:22px 26px;
}
.ladder-card h3{font-size:18px;font-weight:600}
.ladder-card p{grid-column:1;font-size:14px;color:var(--text-2);margin-top:8px}
.ladder-value{font-size:20px;font-weight:700;color:var(--accent-500);font-variant-numeric:tabular-nums;white-space:nowrap}
.ladder-value small{display:block;font-size:12px;font-weight:400;color:var(--text-3);text-align:right}

/* ---------- 套餐对比 ---------- */
.combo{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.combo-card{display:flex;flex-direction:column;padding:28px 24px;gap:18px}
.combo-card.is-featured{
  border:2px solid transparent;
  background-image:linear-gradient(var(--surface),var(--surface)),var(--grad-brand);
  background-origin:border-box;background-clip:padding-box,border-box;
  transform:translateY(-12px);box-shadow:var(--sh-2);
}
.combo-card.is-featured:hover{transform:translateY(-16px);box-shadow:var(--sh-3)}
.combo-head{display:flex;align-items:center;justify-content:space-between;gap:10px}
.combo-head h3{font-size:19px;font-weight:700}
.combo-price{font-size:30px;font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums;line-height:1.2}
.combo-price small{display:block;font-size:12px;font-weight:400;color:var(--text-3);margin-top:4px}
.combo-for{font-size:13px;color:var(--text-2)}
.combo-list{display:flex;flex-direction:column;gap:10px;border-top:1px solid var(--line);padding-top:18px;flex:1}
.combo-list li{display:flex;align-items:flex-start;gap:9px;font-size:14px;color:var(--text-2)}
.combo-list svg{width:16px;height:16px;flex:none;margin-top:5px;color:var(--brand-400)}
.combo-list li.off svg{color:var(--text-3)}
.combo-card .btn{width:100%}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px}
.news-feature{display:grid;grid-template-columns:1.02fr 1fr;overflow:hidden;border-radius:var(--r-md)}
.news-feature-media{position:relative;overflow:hidden;background:var(--surface-2)}
.news-feature-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11}
.news-feature-media .badge{position:absolute;top:16px;left:16px}
.news-feature-body{display:flex;flex-direction:column;justify-content:center;gap:12px;padding:28px}
.news-feature-body h3{font-size:20px;font-weight:700;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-feature-body p{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-side{display:grid;gap:24px;grid-template-rows:1fr 1fr}
.news-mini{display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-md)}
.news-mini-media{background:var(--surface-2);overflow:hidden}
.news-mini-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-mini-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.news-mini-body h3{font-size:16px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-mini-body p{font-size:13px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:10px}
.news-meta time{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.news-read{display:inline-flex;align-items:center;gap:5px;font-size:13px;font-weight:600;color:var(--brand-400)}
.news-read svg{width:14px;height:14px;transition:transform .2s var(--ease)}
.news-feature:hover h3,.news-mini:hover h3{color:var(--brand-400)}
.news-feature:hover .news-read svg,.news-mini:hover .news-read svg{transform:translateX(4px)}

.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  min-height:240px;padding:32px;text-align:center;
  border:2px dashed var(--line);border-radius:var(--r-md);background:var(--surface-2);
}
.empty-state svg{width:48px;height:48px;color:var(--brand-400)}
.empty-state p{font-size:16px;color:var(--text-2)}

/* ---------- 限时入口 ---------- */
.hot-band{
  position:relative;background:var(--brand-900);color:var(--cream);overflow:hidden;
  padding:56px 0;
}
.hot-band::before{
  content:"";position:absolute;top:-60%;left:20%;width:70%;height:220%;
  background:linear-gradient(100deg,rgba(63,203,154,.16),rgba(240,147,43,.10));
  transform:rotate(-12deg);pointer-events:none;
}
.hot-grid{position:relative;display:grid;grid-template-columns:1.1fr auto auto;gap:32px;align-items:center}
.hot-copy h2{font-size:clamp(20px,2.4vw,28px);font-weight:700;color:var(--cream);margin-top:12px}
.hot-copy p{font-size:13px;color:rgba(242,239,230,.7);margin-top:8px;max-width:420px}
.countdown{display:flex;align-items:center;gap:8px}
.cd-cell{
  width:56px;height:60px;border-radius:12px;background:rgba(245,242,234,.09);
  border:1px solid rgba(245,242,234,.16);display:flex;flex-direction:column;align-items:center;justify-content:center;
}
.cd-cell b{font-size:24px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.1;color:var(--cream)}
.cd-cell i{font-size:10px;font-style:normal;color:rgba(242,239,230,.6)}
.cd-colon{font-size:20px;font-weight:700;color:rgba(242,239,230,.5)}

/* ---------- 咨询表单 ---------- */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.point-list{display:flex;flex-direction:column;gap:14px;margin-top:8px}
.point-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text-2)}
.point-list svg{width:18px;height:18px;flex:none;margin-top:5px;color:var(--brand-400)}
.fine-print{margin-top:20px;font-size:13px;color:var(--text-3)}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-3);padding:32px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.field label{font-size:14px;font-weight:600}
.field label .req{color:var(--accent-500);margin-left:2px}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-input);border:1px solid var(--line);
  background:var(--surface);color:var(--text);font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field textarea{height:120px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-400);box-shadow:0 0 0 3px rgba(30,158,124,.18);background:var(--surface);
}
.field input.is-error,.field textarea.is-error{border-color:var(--danger);box-shadow:0 0 0 3px rgba(229,83,61,.14)}
.field-error{display:none;font-size:12px;color:var(--danger)}
.field-error.show{display:block}
.seg{display:flex;gap:10px;flex-wrap:wrap}
.seg input{position:absolute;opacity:0;pointer-events:none}
.seg label{
  display:inline-flex;align-items:center;height:42px;padding:0 16px;border-radius:12px;border:1px solid var(--line);
  font-size:14px;font-weight:500;color:var(--text-2);cursor:pointer;transition:all .2s var(--ease);
}
.seg input:checked + label{border-color:var(--brand-400);background:var(--surface-2);color:var(--brand-700);font-weight:600}
.form-tip{font-size:12px;color:var(--text-3);margin-top:14px;text-align:center}
.form-success{display:flex;flex-direction:column;align-items:center;text-align:center;gap:14px;padding:32px 8px}
.form-success .ok{width:48px;height:48px;border-radius:50%;background:rgba(30,158,124,.12);display:grid;place-items:center;color:var(--brand-400)}
.form-success .ok svg{width:26px;height:26px}
.form-success h3{font-size:19px;font-weight:700}
.form-success p{font-size:14px;color:var(--text-2)}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:12px}
.faq-item{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad-brand);
  transform:scaleY(0);transform-origin:top;transition:transform .22s var(--ease);
}
.faq-item.is-open::before{transform:scaleY(1)}
.faq-item.is-open{box-shadow:var(--sh-2);border-color:#CFE5DA}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16px;font-weight:600;text-align:left;color:var(--text);
}
.faq-q svg{width:20px;height:20px;flex:none;color:var(--brand-400);transition:transform .2s var(--ease)}
.faq-item.is-open .faq-q svg{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-a p{padding:0 24px 22px;font-size:15px;color:var(--text-2)}
.faq-item.is-open .faq-a{max-height:420px}

/* ---------- 通栏 CTA ---------- */
.endcta{
  position:relative;background:var(--grad-brand);border-radius:var(--r-lg);color:#fff;overflow:hidden;
  padding:40px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.endcta::after{
  content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;border-radius:50%;
  background:rgba(255,255,255,.08);pointer-events:none;
}
.endcta h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;color:#fff}
.endcta p{font-size:14px;color:rgba(255,255,255,.82);margin-top:8px;max-width:560px}

/* ---------- 页脚 ---------- */
.footer{background:var(--brand-900);color:var(--cream);margin-top:auto;border-top:1px solid rgba(255,255,255,.12)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;padding:64px 32px}
.f-brand .brand{padding:0;border:0;margin-bottom:16px}
.f-brand .brand-text{color:var(--cream)}
.f-brand p{font-size:13px;color:rgba(242,239,230,.68);max-width:280px;line-height:1.8}
.f-social{display:flex;gap:10px;margin-top:18px}
.f-social a{width:36px;height:36px;border-radius:50%;border:1px solid rgba(242,239,230,.24);display:grid;place-items:center;color:var(--cream);transition:background .2s var(--ease),transform .2s var(--ease)}
.f-social a:hover{background:rgba(242,239,230,.12);transform:translateY(-2px)}
.f-social svg{width:16px;height:16px}
.f-col h4{font-size:14px;font-weight:600;color:var(--cream);margin-bottom:16px;letter-spacing:.02em}
.f-col ul{display:flex;flex-direction:column;gap:10px}
.f-col a,.f-col li{font-size:13px;color:rgba(242,239,230,.68);line-height:1.7}
.f-col a:hover{color:var(--brand-300)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 32px;display:flex;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(242,239,230,.55);
}

/* ---------- 入场动效 ---------- */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.js .reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1199px) and (min-width:992px){
  :root{--sidebar:84px;--pad-sec:72px}
  .brand{justify-content:center;padding-left:0;padding-right:0}
  .brand-text{display:none}
  .side-link{justify-content:center;padding:0}
  .side-link .side-label{display:none}
  .side-link:hover .side-label{
    display:block;position:absolute;left:64px;top:50%;transform:translateY(-50%);
    background:var(--brand-900);color:var(--cream);font-size:12px;font-weight:500;
    padding:6px 12px;border-radius:8px;white-space:nowrap;z-index:90;box-shadow:var(--sh-3);
  }
  .side-foot .btn .btn-text{display:none}
  .side-note,.side-copy{display:none}
  .hero-grid{gap:32px}
  .contact-grid{gap:32px}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:28px}
  .footer-grid .f-col:last-child{grid-column:1/-1}
}
@media (max-width:991px){
  :root{--pad-sec:64px}
  .sidebar{width:280px;transform:translateX(-100%);box-shadow:var(--sh-3)}
  body.drawer-open .sidebar{transform:translateX(0)}
  body.drawer-open .mask{opacity:1;pointer-events:auto}
  .topbar{display:flex}
  .shell{margin-left:0;padding-top:60px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero{padding:44px 0 48px}
  .hero-stat{left:auto;right:16px;bottom:-18px}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:1fr}
  .news-side{grid-template-rows:none}
  .combo{grid-template-columns:1fr;gap:20px}
  .combo-card.is-featured{transform:none}
  .combo-card.is-featured:hover{transform:translateY(-4px)}
  .hot-grid{grid-template-columns:1fr;gap:24px;text-align:left}
  .countdown{justify-content:flex-start}
  .hot-grid .btn{width:100%}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:48px 24px}
  .f-brand{grid-column:1/-1}
}
@media (max-width:767px){
  :root{--pad-sec:44px}
  body{font-size:15px;line-height:1.75}
  .container{padding:0 18px}
  .hero-copy h1{margin-top:14px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .stat-strip{grid-template-columns:1fr 1fr;gap:14px}
  .stat{padding:14px;gap:10px}
  .stat strong{font-size:16px}
  .stat span{font-size:12px}
  .ladder-card{grid-template-columns:1fr;padding:20px}
  .ladder-value{text-align:left}
  .ladder-value small{text-align:left}
  .news-feature{grid-template-columns:1fr}
  .news-feature-media img{aspect-ratio:16/9}
  .news-feature-body{padding:20px}
  .form-card{padding:22px}
  .endcta{padding:28px 22px;border-radius:var(--r-md)}
  .endcta .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;padding:40px 18px}
  .footer-bottom{padding:18px;flex-direction:column;gap:8px}
  .cd-cell{width:48px;height:52px}
  .cd-cell b{font-size:20px}
  .faq-q{padding:18px;font-size:15px}
  .faq-a p{padding:0 18px 20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
  .js .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --brand-900:#0B2A26;
  --brand-700:#0E3B34;
  --brand-500:#17705C;
  --brand-400:#1E9E7C;
  --brand-300:#3FCB9A;
  --accent-500:#F0932B;
  --accent-400:#FFB648;
  --danger:#E5533D;
  --bg:#F5F2EA;
  --surface:#FFFFFF;
  --surface-2:#EFE9DE;
  --line:#E2DACB;
  --text:#1B2A26;
  --text-2:#5C6B66;
  --text-3:#8D9A95;
  --grad-brand:linear-gradient(135deg,#0E3B34 0%,#17705C 46%,#3FCB9A 100%);
  --grad-hot:linear-gradient(120deg,#F0932B 0%,#FFB648 100%);
  --shadow-1:0 1px 2px rgba(11,42,38,.06),0 8px 24px rgba(11,42,38,.06);
  --shadow-2:0 18px 44px rgba(11,42,38,.12);
  --r-xl:28px;
  --r-lg:20px;
  --r-sm:12px;
  --r-input:14px;
  --ease:cubic-bezier(.2,.8,.2,1);
  --side-w:236px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand-400);outline-offset:2px;border-radius:6px}
::selection{background:rgba(30,158,124,.22)}

.app{display:block;min-height:100vh}

/* ============ 左侧 App Shell ============ */
.sidebar{
  position:fixed;left:0;top:0;z-index:60;
  width:var(--side-w);height:100vh;
  background:var(--surface);
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:22px 16px 18px;
  transition:transform .28s var(--ease),width .28s var(--ease);
}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  background:var(--grad-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(14,59,52,.28);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--brand-700);white-space:nowrap}

.side-nav{margin-top:26px;display:flex;flex-direction:column;gap:4px;flex:1;overflow-y:auto}
.nav-item{
  position:relative;display:flex;align-items:center;gap:11px;
  height:44px;padding:0 12px;border-radius:var(--r-sm);
  font-size:14.5px;font-weight:500;color:var(--text-2);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-item svg{width:17px;height:17px;flex:0 0 17px;color:var(--brand-500)}
.nav-item:hover{background:var(--surface-2);color:var(--brand-700)}
.nav-item.active{background:var(--surface-2);color:var(--brand-700);font-weight:600}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;
  border-radius:0 4px 4px 0;background:var(--grad-brand);
}
.side-bottom{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.side-note{font-size:12px;color:var(--text-3);line-height:1.6}
.side-copy{font-size:12px;color:var(--text-3)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-input);
  font-size:16px;font-weight:600;line-height:1;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 10px 24px rgba(14,59,52,.24)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:var(--surface);color:var(--brand-700);border-color:var(--line)}
.btn-ghost:hover{background:var(--surface-2);transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--brand-400);border-color:transparent;padding:0 6px;height:auto;font-size:14px;font-weight:600}
.btn-outline:hover{color:var(--brand-500);text-decoration:underline}
.btn-hot{background:var(--grad-hot);color:#3A2405}
.btn-hot:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(240,147,43,.34)}
.btn-block{width:100%}
.btn-sm{height:42px;font-size:14.5px;padding:0 18px}
.btn:focus-visible{outline:2px solid var(--brand-400);outline-offset:2px}

/* ============ 主区 ============ */
.shell{
  margin-left:var(--side-w);min-height:100vh;
  display:flex;flex-direction:column;
  transition:margin-left .28s var(--ease);
}
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;z-index:70;height:60px;
  align-items:center;justify-content:space-between;
  padding:0 16px;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(6px);
}
.menu-btn{
  width:44px;height:44px;border-radius:var(--r-sm);
  display:flex;align-items:center;justify-content:center;color:var(--brand-700);
  border:1px solid var(--line);background:var(--surface);
}
.menu-btn svg{width:20px;height:20px}
.menu-btn:hover{background:var(--surface-2)}
.mask{
  position:fixed;inset:0;background:rgba(11,42,38,.45);
  opacity:0;pointer-events:none;transition:opacity .28s var(--ease);z-index:55;
}
.mask.show{opacity:1;pointer-events:auto}

.container{width:100%;max-width:1120px;margin:0 auto;padding:0 32px}

.main{flex:1;padding:36px 0 0}

/* 面包屑 */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-2);line-height:1.6;
}
.crumb a:hover{color:var(--brand-400)}
.crumb .sep{color:var(--text-3)}
.crumb-cur{color:var(--text);font-weight:600;max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头 ============ */
.article-head{padding:22px 0 30px;border-bottom:1px solid var(--line)}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:16px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.5;
}
.badge-neutral{background:var(--surface-2);color:var(--brand-700)}
.badge-hot{background:var(--grad-hot);color:#3A2405}
.badge-dark{background:var(--brand-900);color:#F2EFE6}
.metaline{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--text-3)}
.metaline .divider{width:1px;height:12px;background:var(--line)}
h1{
  font-size:clamp(28px,4.2vw,46px);font-weight:700;line-height:1.18;
  letter-spacing:-.02em;color:var(--text);max-width:820px;
}
.article-head h1{margin-bottom:16px}
.article-lead{
  margin-top:16px;max-width:760px;font-size:16px;color:var(--text-2);line-height:1.85;
}

/* ============ 文章主体布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px;
  padding:38px 0 8px;align-items:start;
}
.article-body{max-width:800px;font-size:17px;line-height:1.9;color:var(--text)}
.article-body>*+*{margin-top:20px}
.article-body h2{
  position:relative;margin-top:44px;margin-bottom:16px;padding-top:22px;
  font-size:clamp(21px,2.4vw,27px);font-weight:700;line-height:1.3;letter-spacing:-.01em;
  border-top:1px solid var(--line);
}
.article-body h2::after{
  content:"";position:absolute;left:0;top:22px;bottom:2px;width:4px;
  border-radius:4px;background:var(--grad-brand);transform:translateX(-14px);
}
.article-body h3{margin-top:30px;font-size:18px;font-weight:600;line-height:1.5}
.article-body p{color:#22322D}
.article-body ul,.article-body ol{margin-top:14px;padding-left:4px}
.article-body ul li{
  position:relative;padding-left:22px;margin-top:10px;color:#22322D;
}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:12px;width:7px;height:7px;
  border-radius:50%;background:var(--brand-400);
}
.article-body ol{counter-reset:item}
.article-body ol li{
  position:relative;padding-left:26px;margin-top:10px;color:#22322D;counter-increment:item;
}
.article-body ol li::before{
  content:counter(item)".";position:absolute;left:0;top:0;
  color:var(--brand-400);font-weight:700;font-size:15px;
}
.article-body blockquote{
  margin-top:24px;padding:20px 22px;border-radius:var(--r-lg);
  background:var(--surface-2);border-left:4px solid var(--brand-400);
  color:var(--text-2);font-size:16px;
}
.article-body blockquote p{color:var(--text-2)}
.article-body a{color:var(--brand-400);border-bottom:1px solid rgba(30,158,124,.35)}
.article-body a:hover{color:var(--brand-500);border-bottom-color:var(--brand-500)}
.article-body img{border-radius:var(--r-lg);margin-top:24px;width:100%;object-fit:cover;background:var(--surface-2)}
.article-body figure{margin-top:24px}
.article-body figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--text-3)}
.article-body table{
  width:100%;margin-top:24px;border-collapse:separate;border-spacing:0;
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;font-size:15px;
}
.article-body thead th{
  background:var(--brand-700);color:#F2EFE6;font-weight:600;
  text-align:left;padding:13px 16px;font-size:14px;
}
.article-body tbody td{padding:12px 16px;border-top:1px solid var(--line)}
.article-body tbody tr:nth-child(even){background:rgba(239,233,222,.55)}
.article-body code{
  background:var(--surface-2);border-radius:6px;padding:2px 6px;font-size:14px;
  color:var(--brand-700);
}
.article-body hr{border:0;border-top:1px solid var(--line);margin-top:32px}

/* 空态 */
.empty{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  min-height:240px;padding:32px;text-align:center;
  border:2px dashed var(--line);border-radius:var(--r-lg);background:var(--surface-2);
}
.empty svg{width:48px;height:48px;color:var(--brand-400)}
.empty p{font-size:16px;color:var(--text-2)}

/* ============ 侧栏 ============ */
.article-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:24px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--shadow-1);
}
.side-card h3{font-size:16px;font-weight:600;margin-bottom:14px;color:var(--brand-700)}
.side-list{display:flex;flex-direction:column}
.side-list li{border-top:1px solid var(--line)}
.side-list li:first-child{border-top:0}
.side-list a{
  display:flex;align-items:center;gap:8px;padding:12px 0;
  font-size:14px;color:var(--text-2);
}
.side-list a:hover{color:var(--brand-400)}
.side-list a svg{width:15px;height:15px;color:var(--brand-400);flex:0 0 15px}
.side-cta{
  background:var(--brand-900);border:0;color:#F2EFE6;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.1);
}
.side-cta h3{color:#fff}
.side-cta p{font-size:13.5px;line-height:1.7;color:rgba(242,239,230,.76);margin-bottom:16px}
.side-cta .btn{width:100%}

/* ============ 底部收尾 ============ */
.foot-nav{
  display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:44px;
}
.foot-card{
  display:block;padding:20px 22px;border-radius:var(--r-lg);
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.foot-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(30,158,124,.4)}
.foot-card .dir{font-size:12px;color:var(--text-3);letter-spacing:.04em}
.foot-card .tt{display:block;margin-top:8px;font-size:15.5px;font-weight:600;color:var(--brand-700);line-height:1.5}
.foot-card.muted{background:var(--surface-2);border-style:dashed;cursor:default;box-shadow:none}
.foot-card.muted:hover{transform:none;box-shadow:none;border-color:var(--line)}
.foot-card.muted .tt{color:var(--text-3)}

.relate{margin-top:52px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.sec-head .line{width:40px;height:3px;border-radius:3px;background:var(--grad-brand);margin-bottom:14px}
.sec-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.25;letter-spacing:-.01em}
.sec-head .more{font-size:14px;font-weight:600;color:var(--brand-400);display:inline-flex;align-items:center;gap:6px}
.sec-head .more:hover{gap:10px}
.relate-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:20px}
.relate-main{
  display:flex;gap:20px;padding:22px;border-radius:var(--r-lg);
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.relate-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.relate-main img{width:220px;height:140px;border-radius:var(--r-sm);object-fit:cover;background:var(--surface-2);flex:0 0 220px}
.relate-main h3{font-size:18px;font-weight:600;line-height:1.45;color:var(--brand-700)}
.relate-main p{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.75}
.relate-side{display:flex;flex-direction:column;gap:16px}
.relate-mini{
  display:flex;gap:14px;align-items:center;padding:16px;border-radius:var(--r-lg);
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.relate-mini:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.relate-mini img{width:64px;height:64px;border-radius:var(--r-sm);object-fit:cover;background:var(--surface-2);flex:0 0 64px}
.relate-mini .tt{font-size:14.5px;font-weight:600;line-height:1.45;color:var(--brand-700)}
.relate-mini .tm{margin-top:6px;font-size:12.5px;color:var(--text-3)}
.back-center{display:flex;flex-direction:column;align-items:center;gap:14px;margin:52px 0 0}
.back-center .link-home{font-size:13px;color:var(--text-2)}
.back-center .link-home:hover{color:var(--brand-400)}

/* ============ 通栏 CTA ============ */
.cta-band{
  margin-top:60px;padding:40px 36px;border-radius:var(--r-xl);
  background:var(--brand-900);color:#F2EFE6;position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.1);
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(63,203,154,.35),transparent 68%);
}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.35;position:relative;z-index:1}
.cta-band p{margin-top:10px;font-size:13.5px;color:rgba(242,239,230,.72);position:relative;z-index:1}
.cta-band .btn{position:relative;z-index:1;flex:0 0 auto}

/* ============ 页脚 ============ */
.footer{
  margin-top:80px;background:var(--brand-900);color:#F2EFE6;
  padding:64px 0 28px;position:relative;
}
.footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;background:rgba(255,255,255,.12);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px}
.f-brand .brand-text{color:#F2EFE6}
.f-brand p{margin-top:16px;font-size:13.5px;line-height:1.8;color:rgba(242,239,230,.72);max-width:320px}
.f-social{display:flex;gap:12px;margin-top:18px}
.f-social a{
  width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.24);color:#F2EFE6;
  transition:background .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.f-social a svg{width:17px;height:17px}
.f-social a:hover{background:rgba(63,203,154,.18);border-color:rgba(63,203,154,.6);transform:translateY(-2px)}
.f-col h4{font-size:14.5px;font-weight:600;margin-bottom:16px;color:#fff}
.f-col ul{display:flex;flex-direction:column;gap:11px}
.f-col li,.f-col a{font-size:13.5px;color:rgba(242,239,230,.72);line-height:1.6}
.f-col a:hover{color:var(--brand-300)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(242,239,230,.62);
}
.footer-bottom a:hover{color:var(--brand-300)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  :root{--side-w:84px}
  .sidebar{padding:22px 12px 18px;align-items:center}
  .brand-text{display:none}
  .side-nav{width:100%;align-items:center}
  .nav-item{justify-content:center;padding:0;width:48px}
  .nav-item span{display:none}
  .side-bottom{align-items:center;width:100%}
  .side-bottom .btn{width:48px;padding:0;font-size:0}
  .side-bottom .btn svg{width:20px;height:20px}
  .side-note,.side-copy{display:none}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap}
  .article-side>*{flex:1 1 280px}
}
@media (max-width:991px){
  .topbar{display:flex}
  .sidebar{transform:translateX(-100%);width:280px;padding:22px 18px 18px;align-items:stretch;box-shadow:var(--shadow-2)}
  .sidebar.open{transform:translateX(0)}
  .sidebar.open .brand-text{display:inline}
  .sidebar.open .side-nav{align-items:stretch}
  .sidebar.open .nav-item{justify-content:flex-start;padding:0 12px;width:100%}
  .sidebar.open .nav-item span{display:inline}
  .sidebar.open .side-bottom{align-items:stretch}
  .sidebar.open .side-bottom .btn{width:100%;padding:0 24px;font-size:16px}
  .sidebar.open .side-note,.sidebar.open .side-copy{display:block}
  .shell{margin-left:0;padding-top:60px}
  .container{padding:0 20px}
  .main{padding-top:24px}
  .crumb-cur{max-width:46vw}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .relate-grid{grid-template-columns:1fr}
}
@media (max-width:767px){
  body{font-size:15px}
  .container{padding:0 16px}
  .article-layout{padding-top:26px}
  .article-body{font-size:16px}
  .article-body h2::after{transform:translateX(-10px)}
  .article-side{flex-direction:column}
  .relate-main{flex-direction:column}
  .relate-main img{width:100%;height:180px;flex:none}
  .foot-nav{grid-template-columns:1fr}
  .sec-head{flex-direction:column;align-items:flex-start;gap:8px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --brand-900:#0B2A26;
  --brand-700:#0E3B34;
  --brand-500:#17705C;
  --brand-400:#1E9E7C;
  --brand-300:#3FCB9A;
  --accent-500:#F0932B;
  --accent-400:#FFB648;
  --danger:#E5533D;
  --bg:#F5F2EA;
  --surface:#FFFFFF;
  --surface-2:#EFE9DE;
  --line:#E2DACB;
  --text:#1B2A26;
  --text-2:#5C6B66;
  --text-3:#8D9A95;
  --milk:#F2EFE6;
  --grad-brand:linear-gradient(135deg,#0E3B34 0%,#17705C 46%,#3FCB9A 100%);
  --grad-hot:linear-gradient(120deg,#F0932B 0%,#FFB648 100%);
  --shadow-1:0 1px 2px rgba(11,42,38,.06),0 8px 24px rgba(11,42,38,.06);
  --shadow-2:0 18px 44px rgba(11,42,38,.12);
  --r-lg:28px;
  --r-md:20px;
  --r-sm:14px;
  --r-xs:12px;
  --ease:cubic-bezier(.2,.8,.2,1);
  --sidebar-w:236px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-500);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-400)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-400);outline-offset:2px;border-radius:6px}

/* ---------- 布局骨架 ---------- */
.sidebar{
  position:fixed;
  top:0;left:0;
  width:var(--sidebar-w);
  height:100vh;
  background:var(--surface);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  padding:22px 16px 18px;
  overflow-y:auto;
  z-index:70;
}
.topbar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:60px;
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid var(--line);
  z-index:80;
}
.menu-btn{
  width:44px;height:44px;
  display:grid;place-items:center;
  background:var(--surface-2);
  border:1px solid var(--line);
  border-radius:var(--r-xs);
  cursor:pointer;
  transition:background .2s var(--ease);
}
.menu-btn:hover{background:#e6dfd1}
.menu-btn svg{width:20px;height:20px;stroke:var(--brand-700)}
.scrim{
  position:fixed;inset:0;
  background:rgba(11,42,38,.45);
  opacity:0;visibility:hidden;
  transition:opacity .24s var(--ease),visibility .24s var(--ease);
  z-index:65;
}
.scrim.show{opacity:1;visibility:visible}

.main{
  margin-left:var(--sidebar-w);
  min-height:100vh;
}
.container{
  width:100%;
  max-width:1120px;
  margin:0 auto;
  padding:0 32px;
}

/* ---------- 品牌 ---------- */
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  font-weight:700;
}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;
  flex:none;
  border-radius:11px;
  background:var(--grad-brand);
  display:grid;place-items:center;
  color:#fff;
  box-shadow:0 6px 16px rgba(14,59,52,.28);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:17px;letter-spacing:.01em;white-space:nowrap}

/* ---------- 侧栏导航 ---------- */
.side-nav{margin-top:26px;display:flex;flex-direction:column;gap:4px}
.side-nav a{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  padding:12px 14px;
  border-radius:var(--r-xs);
  color:var(--text-2);
  font-size:15px;
  font-weight:500;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.side-nav a svg{width:18px;height:18px;flex:none;stroke:currentColor;opacity:.85}
.side-nav a:hover{background:var(--surface-2);color:var(--brand-700)}
.side-nav a.active{
  background:var(--surface-2);
  color:var(--brand-700);
  font-weight:700;
}
.side-nav a.active::before{
  content:"";
  position:absolute;
  left:0;top:10px;bottom:10px;
  width:4px;
  border-radius:0 4px 4px 0;
  background:var(--grad-brand);
}
.side-foot{margin-top:auto;padding-top:22px;display:flex;flex-direction:column;gap:10px}
.side-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  width:100%;
  height:48px;
  border-radius:var(--r-sm);
  background:var(--grad-brand);
  color:#fff;
  font-size:15px;
  font-weight:600;
  box-shadow:0 10px 22px rgba(14,59,52,.24);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.side-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px rgba(14,59,52,.3)}
.side-cta svg{width:18px;height:18px;stroke:currentColor}
.side-meta{font-size:12px;line-height:1.6;color:var(--text-3)}
.side-meta strong{display:block;color:var(--text-2);font-weight:600}

/* ---------- 面包屑 ---------- */
.crumb{
  padding-top:34px;
  font-size:13px;
  color:var(--text-2);
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--brand-400)}
.crumb .sep{color:var(--text-3)}
.crumb .now{color:var(--text);font-weight:600}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;
  margin-top:22px;
  border-radius:var(--r-lg);
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;
  right:-140px;top:-160px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(63,203,154,.18),rgba(63,203,154,0) 68%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:0;
}
.hero-copy{padding:52px 40px 48px 44px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--surface-2);
  color:var(--brand-700);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--brand-400);display:block}
h1{
  margin-top:20px;
  font-size:clamp(28px,4.2vw,44px);
  line-height:1.18;
  letter-spacing:-.02em;
  font-weight:700;
}
.hero-copy p.lead{
  margin-top:18px;
  max-width:34em;
  font-size:16px;
  color:var(--text-2);
}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px}
.trust-row{
  margin-top:28px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:22px;
}
.trust-row div{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  color:var(--text-2);
}
.trust-row svg{width:16px;height:16px;stroke:var(--brand-400);flex:none}
.hero-media{position:relative;min-height:320px;background:var(--surface-2)}
.hero-media img{
  width:100%;height:100%;
  object-fit:cover;
  animation:fade .5s var(--ease) both;
}
.hero-media::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(11,42,38,.62) 0%,rgba(11,42,38,.18) 46%,rgba(11,42,38,0) 78%);
  z-index:1;
}
.hero-badge{
  position:absolute;
  left:-26px;bottom:26px;
  z-index:2;
  background:var(--surface);
  border-radius:var(--r-md);
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
  padding:16px 20px;
  min-width:170px;
}
.hero-badge b{
  display:block;
  font-size:26px;
  font-weight:700;
  line-height:1.2;
  background:var(--grad-brand);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-badge span{font-size:12px;color:var(--text-2)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-sm);
  font-size:16px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
  white-space:nowrap;
}
.btn svg{width:17px;height:17px;stroke:currentColor;flex:none}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 10px 22px rgba(14,59,52,.22)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 34px rgba(14,59,52,.28)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:var(--surface);color:var(--brand-700);border-color:var(--line)}
.btn-ghost:hover{background:var(--surface-2);color:var(--brand-700)}
.btn-hot{background:var(--grad-hot);color:#2A1A05;box-shadow:0 10px 22px rgba(240,147,43,.28)}
.btn-hot:hover{color:#2A1A05;transform:translateY(-2px)}
.btn-link{
  height:auto;padding:0;border:0;background:none;color:var(--brand-500);font-weight:600;
}
.btn-link:hover{color:var(--brand-400);text-decoration:underline}
.btn[disabled]{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 区块 ---------- */
.section{padding:88px 0}
.section.tight{padding:64px 0}
.sec-head{margin-bottom:36px;max-width:760px}
.sec-head h2{
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.28;
  font-weight:700;
  letter-spacing:-.01em;
}
.sec-head h2::before{
  content:"";
  display:block;
  width:40px;height:3px;
  border-radius:2px;
  background:var(--grad-brand);
  margin-bottom:16px;
}
.sec-head p{margin-top:14px;color:var(--text-2);font-size:15px}
.sec-head.row{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  max-width:none;
  flex-wrap:wrap;
}

/* ---------- 时间线 ---------- */
.timeline{position:relative;margin-top:6px}
.tl-item{
  position:relative;
  display:grid;
  grid-template-columns:60px 1fr;
  gap:20px;
  padding-bottom:26px;
}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";
  position:absolute;
  left:15px;top:42px;bottom:-4px;
  width:2px;
  background:linear-gradient(180deg,rgba(30,158,124,.55),rgba(226,218,203,.9));
}
.tl-item:last-child::before{display:none}
.tl-dot{
  width:32px;height:32px;
  border-radius:50%;
  background:var(--grad-brand);
  color:#fff;
  display:grid;place-items:center;
  font-size:14px;
  font-weight:700;
  z-index:1;
  box-shadow:0 6px 14px rgba(14,59,52,.22);
}
.tl-item:last-child .tl-dot{background:var(--grad-hot);color:#2A1A05;box-shadow:0 6px 14px rgba(240,147,43,.28)}
.tl-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px 24px;
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.tl-card h3{font-size:18px;font-weight:600;line-height:1.4}
.tl-card p{margin-top:10px;color:var(--text-2);font-size:15px}
.tl-note{margin-top:12px;font-size:12px;color:var(--text-3)}
.tl-tag{
  display:inline-block;
  margin-left:10px;
  padding:2px 10px;
  border-radius:999px;
  background:var(--surface-2);
  color:var(--brand-700);
  font-size:12px;
  font-weight:600;
  vertical-align:middle;
}

/* ---------- 非对称卡片 ---------- */
.split{
  display:grid;
  grid-template-columns:1.25fr 1fr;
  gap:24px;
}
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px;
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.card-lg{padding:0;overflow:hidden;display:flex;flex-direction:column}
.card-lg .thumb{position:relative;aspect-ratio:16/9;background:var(--surface-2);overflow:hidden}
.card-lg .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.card-lg:hover .thumb img{transform:scale(1.03)}
.card-lg .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,42,38,.34),rgba(11,42,38,.04) 62%);
}
.card-lg .body{padding:24px}
.card-lg h3{font-size:20px;font-weight:600;line-height:1.4}
.card-lg p{margin-top:12px;color:var(--text-2);font-size:15px}
.card h3{font-size:18px;font-weight:600;line-height:1.4}
.card p{margin-top:10px;color:var(--text-2);font-size:15px}
.stack{display:flex;flex-direction:column;gap:24px}
.ticks{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.ticks li{display:flex;gap:10px;font-size:14px;color:var(--text-2)}
.ticks svg{width:16px;height:16px;stroke:var(--brand-400);flex:none;margin-top:6px}

/* ---------- 深色数据条 ---------- */
.band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  background:var(--brand-900);
  padding:44px 40px;
  box-shadow:var(--shadow-1);
}
.band::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(115deg,rgba(63,203,154,.18) 0%,rgba(63,203,154,0) 52%);
  pointer-events:none;
}
.band-grid{
  position:relative;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.band-item{border-left:1px solid rgba(255,255,255,.14);padding-left:20px}
.band-item:first-child{border-left:0;padding-left:0}
.band-item b{
  display:block;
  font-size:30px;
  font-weight:700;
  line-height:1.2;
  color:var(--milk);
}
.band-item b em{
  font-style:normal;
  color:var(--brand-300);
}
.band-item span{display:block;margin-top:8px;font-size:13px;color:rgba(242,239,230,.7)}

/* ---------- 通栏 CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  background:var(--brand-900);
  padding:38px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}
.cta-band::after{
  content:"";
  position:absolute;left:-80px;top:-120px;
  width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(63,203,154,.22),rgba(63,203,154,0) 70%);
  pointer-events:none;
}
.cta-band h2{
  position:relative;
  color:var(--milk);
  font-size:clamp(20px,2.3vw,26px);
  font-weight:700;
  line-height:1.3;
}
.cta-band p{
  position:relative;
  margin-top:8px;
  font-size:13px;
  color:rgba(242,239,230,.72);
}
.cta-band .btn{position:relative}
.cta-band .btn-hot{box-shadow:0 14px 28px rgba(240,147,43,.3)}

/* ---------- 表单 ---------- */
.form-wrap{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:40px;
  align-items:start;
}
.form-side h2{
  font-size:clamp(22px,2.4vw,28px);
  font-weight:700;
  line-height:1.3;
}
.form-side h2::before{
  content:"";
  display:block;
  width:40px;height:3px;border-radius:2px;
  background:var(--grad-brand);
  margin-bottom:16px;
}
.form-side p{margin-top:14px;color:var(--text-2);font-size:15px}
.form-points{margin-top:24px;display:flex;flex-direction:column;gap:14px}
.form-points li{display:flex;gap:12px;font-size:15px;color:var(--text-2)}
.form-points svg{width:18px;height:18px;stroke:var(--brand-400);flex:none;margin-top:6px}
.form-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:32px;
  box-shadow:var(--shadow-2);
}
.field{margin-bottom:20px}
.field:last-of-type{margin-bottom:0}
.field label{
  display:block;
  font-size:14px;
  font-weight:600;
  margin-bottom:8px;
  color:var(--brand-700);
}
.field label .req{color:var(--accent-500);margin-left:4px}
.field input,.field select,.field textarea{
  width:100%;
  min-height:48px;
  padding:12px 14px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:var(--surface);
  font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{min-height:120px;resize:vertical}
.field select{
  appearance:none;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235C6B66' stroke-width='2' stroke-linecap='round'><path d='M6 9l6 6 6-6'/></svg>");
  background-repeat:no-repeat;
  background-position:right 14px center;
  background-size:18px;
  padding-right:44px;
}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--brand-400);
  box-shadow:0 0 0 3px rgba(30,158,124,.18);
}
.field.error input,.field.error select{border-color:var(--danger);box-shadow:0 0 0 3px rgba(229,83,61,.14)}
.err-text{display:none;margin-top:8px;font-size:12px;color:var(--danger)}
.field.error .err-text{display:block}
.form-card .btn{width:100%;height:52px;margin-top:26px}
.form-tip{margin-top:14px;font-size:12px;color:var(--text-3);line-height:1.6}
.form-success{
  display:none;
  text-align:center;
  padding:26px 10px 12px;
}
.form-success.show{display:block}
.form-success .ok{
  width:56px;height:56px;
  border-radius:50%;
  background:var(--grad-brand);
  display:grid;place-items:center;
  margin:0 auto 18px;
  box-shadow:0 12px 26px rgba(14,59,52,.24);
}
.form-success .ok svg{width:26px;height:26px;stroke:#fff}
.form-success h3{font-size:20px;font-weight:700}
.form-success p{margin-top:10px;color:var(--text-2);font-size:15px}
.form-success .btn{width:auto;margin:22px auto 0}

/* ---------- 页脚 ---------- */
.footer{
  margin-top:88px;
  background:var(--brand-900);
  color:var(--milk);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding:64px 32px 48px;
}
.footer .brand{color:var(--milk)}
.footer .brand:hover{color:#fff}
.f-brand p{margin-top:16px;font-size:14px;color:rgba(242,239,230,.72);max-width:30em}
.f-social{margin-top:20px;display:flex;gap:12px}
.f-social a{
  width:36px;height:36px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.2);
  display:grid;place-items:center;
  color:var(--milk);
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.f-social a:hover{background:rgba(255,255,255,.1);transform:translateY(-2px);color:#fff}
.f-social svg{width:17px;height:17px;stroke:currentColor}
.f-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--milk);
  margin-bottom:16px;
}
.f-col ul{display:flex;flex-direction:column;gap:10px}
.f-col li,.f-col a{font-size:14px;color:rgba(242,239,230,.7)}
.f-col a:hover{color:var(--brand-300)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 32px 30px;
  display:flex;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(242,239,230,.6);
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.in{opacity:1;transform:none}
@keyframes fade{from{opacity:0}to{opacity:1}}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px) and (min-width:992px){
  :root{--sidebar-w:84px}
  .sidebar{padding:20px 10px;align-items:center}
  .brand-text,.nav-label,.side-meta{display:none}
  .side-nav{width:100%}
  .side-nav a{justify-content:center;padding:14px 0}
  .side-nav a.active::before{top:8px;bottom:8px}
  .side-cta{width:48px;padding:0}
  .side-cta span{display:none}
}
@media (max-width:991px){
  .topbar{display:flex}
  .sidebar{
    width:280px;
    transform:translateX(-100%);
    transition:transform .26s var(--ease);
    box-shadow:0 0 40px rgba(11,42,38,.2);
  }
  .sidebar.open{transform:translateX(0)}
  .main{margin-left:0;padding-top:60px}
  .container{padding:0 20px}
  .hero-grid{grid-template-columns:1fr}
  .hero-copy{padding:36px 26px 34px}
  .hero-media{min-height:230px;order:-1}
  .hero-badge{left:16px;bottom:-22px;min-width:150px}
  .hero{margin-top:16px}
  .split{grid-template-columns:1fr}
  .band{padding:34px 26px}
  .band-grid{grid-template-columns:repeat(2,1fr);gap:22px}
  .band-item:nth-child(3){border-left:0;padding-left:0}
  .form-wrap{grid-template-columns:1fr;gap:28px}
  .form-card{padding:24px}
  .cta-band{padding:30px 24px}
  .footer-grid{grid-template-columns:1fr 1fr;padding:52px 20px 36px;gap:28px}
  .footer-bottom{padding:20px 20px 26px}
  .section{padding:64px 0}
  .tl-item{grid-template-columns:52px 1fr;gap:16px}
  .tl-item::before{left:15px}
}
@media (max-width:520px){
  body{font-size:15px}
  .container{padding:0 16px}
  .hero-copy{padding:28px 20px 30px}
  .hero-actions .btn{width:100%}
  .band-grid{grid-template-columns:1fr;gap:20px}
  .band-item{border-left:0;padding-left:0;border-top:1px solid rgba(255,255,255,.14);padding-top:16px}
  .band-item:first-child{border-top:0;padding-top:0}
  .footer-grid{grid-template-columns:1fr}
  .tl-item{grid-template-columns:44px 1fr;gap:12px}
  .tl-card{padding:18px 18px}
  .cta-band .btn{width:100%}
  .sec-head.row{align-items:flex-start}
}

/* roulang page: category2 */
:root{
  --brand-900:#0B2A26;
  --brand-700:#0E3B34;
  --brand-500:#17705C;
  --brand-400:#1E9E7C;
  --brand-300:#3FCB9A;
  --accent-500:#F0932B;
  --accent-400:#FFB648;
  --danger:#E5533D;
  --bg:#F5F2EA;
  --surface:#FFFFFF;
  --surface-2:#EFE9DE;
  --line:#E2DACB;
  --text:#1B2A26;
  --text-2:#5C6B66;
  --text-3:#8D9A95;
  --cream:#F2EFE6;
  --grad-brand:linear-gradient(135deg,#0E3B34 0%,#17705C 46%,#3FCB9A 100%);
  --grad-hot:linear-gradient(120deg,#F0932B 0%,#FFB648 100%);
  --r-lg:28px;
  --r-md:20px;
  --r-sm:12px;
  --r-input:14px;
  --sh-1:0 1px 2px rgba(11,42,38,.06),0 8px 24px rgba(11,42,38,.06);
  --sh-2:0 18px 44px rgba(11,42,38,.12);
  --ease:cubic-bezier(.2,.8,.2,1);
  --side:236px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand-400);outline-offset:2px;border-radius:6px;}
.container{max-width:1120px;margin:0 auto;padding:0 32px;}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

/* ---------- 品牌 ---------- */
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.01em;}
.brand-mark{
  width:36px;height:36px;flex:none;border-radius:11px;
  background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;
  box-shadow:0 6px 16px rgba(23,112,92,.32);
}
.brand-mark svg{width:19px;height:19px;}
.brand-text{font-size:18px;color:var(--brand-700);}

/* ---------- 顶部栏（移动端） ---------- */
.topbar{
  position:fixed;top:0;left:0;right:0;height:60px;z-index:60;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 18px;background:var(--surface);border-bottom:1px solid var(--line);
}
.menu-btn{
  width:44px;height:44px;display:grid;place-items:center;
  border:1px solid var(--line);background:var(--surface);
  border-radius:var(--r-sm);color:var(--brand-700);cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.menu-btn:hover{background:var(--surface-2);color:var(--brand-900);}
.menu-btn svg{width:22px;height:22px;}

/* ---------- 侧边导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:280px;z-index:70;
  background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:20px 16px 18px;
  transform:translateX(-100%);
  transition:transform .28s var(--ease);
  overflow-y:auto;
}
.sidebar.open{transform:translateX(0);}
.side-top{padding:4px 6px 18px;}
.side-nav{display:flex;flex-direction:column;gap:4px;flex:1;}
.side-nav a{
  display:flex;align-items:center;gap:12px;
  padding:11px 12px;border-radius:var(--r-sm);
  color:var(--text-2);font-size:15px;font-weight:500;
  position:relative;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.side-nav a svg{width:18px;height:18px;flex:none;color:var(--brand-400);}
.side-nav a:hover{background:var(--surface-2);color:var(--brand-700);}
.side-nav a.active{background:var(--surface-2);color:var(--brand-700);font-weight:600;}
.side-nav a.active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:4px;
  border-radius:0 4px 4px 0;background:var(--grad-brand);
}
.side-bottom{
  border-top:1px solid var(--line);
  padding-top:16px;margin-top:16px;
  display:flex;flex-direction:column;gap:10px;
}
.side-note{font-size:12px;color:var(--text-3);line-height:1.6;}
.side-copy{font-size:12px;color:var(--text-3);}
.overlay{
  position:fixed;inset:0;background:rgba(11,42,38,.45);
  opacity:0;visibility:hidden;z-index:65;
  transition:opacity .25s var(--ease),visibility .25s var(--ease);
}
.overlay.show{opacity:1;visibility:visible;}

/* ---------- 主内容 ---------- */
.main{padding-top:60px;min-height:100vh;}
.section{padding:44px 0;}
.section-tight{padding:32px 0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-input);
  font-size:16px;font-weight:600;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn svg{width:18px;height:18px;}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 10px 24px rgba(23,112,92,.26);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:var(--surface);border-color:var(--line);color:var(--brand-700);}
.btn-outline:hover{background:var(--surface-2);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--brand-400);padding:0;height:auto;}
.btn-ghost:hover{color:var(--brand-700);text-decoration:underline;}
.btn-block{width:100%;}
.btn-lg{height:52px;}
.btn[disabled],.btn.is-disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-neutral{background:var(--surface-2);color:var(--brand-700);}
.badge-hot{background:var(--grad-hot);color:#3A2405;}
.badge-dark{background:var(--brand-900);color:var(--cream);}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-2);padding:22px 0 0;
}
.crumb span.sep{color:var(--text-3);}
.crumb .current{color:var(--text);font-weight:600;}

/* ---------- Hero ---------- */
.hero{padding:28px 0 8px;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;}
.hero-copy h1{
  font-size:clamp(28px,4.2vw,44px);
  line-height:1.18;letter-spacing:-.02em;font-weight:700;color:var(--brand-900);
}
.hero-copy h1 em{font-style:normal;color:var(--brand-400);}
.hero-lead{margin-top:18px;font-size:17px;color:var(--text-2);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-trust{
  display:flex;flex-wrap:wrap;gap:20px;margin-top:26px;
  padding-top:20px;border-top:1px solid var(--line);
}
.hero-trust li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);}
.hero-trust svg{width:16px;height:16px;color:var(--brand-400);flex:none;}
.hero-media{position:relative;}
.hero-media .shot{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  background:var(--surface-2);box-shadow:var(--sh-2);
}
.hero-media .shot img{width:100%;height:380px;object-fit:cover;transition:transform .5s var(--ease);}
.hero-media .shot:hover img{transform:scale(1.03);}
.hero-media .shot::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(11,42,38,.28) 0%,rgba(11,42,38,0) 62%);
}
.float-card{
  position:absolute;left:-18px;bottom:-24px;
  background:var(--surface);border-radius:var(--r-md);
  padding:16px 20px;box-shadow:var(--sh-2);
  border:1px solid var(--line);min-width:170px;
}
.float-card .num{
  font-size:26px;font-weight:700;letter-spacing:-.02em;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.float-card .cap{font-size:12px;color:var(--text-3);margin-top:2px;}

/* ---------- 双栏对照 ---------- */
.verify-grid{display:grid;grid-template-columns:320px 1fr;gap:48px;align-items:start;}
.verify-aside{position:sticky;top:32px;}
.verify-aside h2{
  font-size:clamp(22px,2.6vw,30px);line-height:1.28;font-weight:700;
  color:var(--brand-900);letter-spacing:-.01em;position:relative;padding-top:16px;
}
.verify-aside h2::before{
  content:"";position:absolute;top:0;left:0;width:40px;height:3px;
  border-radius:3px;background:var(--grad-brand);
}
.verify-aside p{margin-top:14px;color:var(--text-2);font-size:15px;}
.verify-aside .btn{margin-top:22px;}
.verify-note{
  margin-top:20px;padding:14px 16px;border-radius:var(--r-sm);
  background:var(--surface-2);font-size:12px;color:var(--text-3);line-height:1.7;
}
.spec-list{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
}
.spec-row{
  display:grid;grid-template-columns:190px 1fr;gap:20px;
  padding:20px 24px;border-bottom:1px solid var(--line);
  transition:background .2s var(--ease);
}
.spec-row:last-child{border-bottom:none;}
.spec-row:hover{background:rgba(239,233,222,.5);}
.spec-key{color:var(--text-2);font-size:15px;}
.spec-val{color:var(--text);font-weight:600;font-size:15px;}
.spec-val span{display:block;font-weight:400;color:var(--text-3);font-size:13px;margin-top:4px;}

/* ---------- 深色数据条 ---------- */
.dark-band{
  background:var(--brand-900);color:var(--cream);
  border-radius:var(--r-lg);padding:36px 32px;position:relative;overflow:hidden;
}
.dark-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(63,203,154,.16) 0%,rgba(63,203,154,0) 55%);
  pointer-events:none;
}
.dark-band .band-head{position:relative;display:flex;flex-wrap:wrap;gap:14px;align-items:baseline;justify-content:space-between;}
.dark-band h2{font-size:22px;font-weight:700;color:#F2EFE6;letter-spacing:-.01em;}
.dark-band .band-sub{font-size:13px;color:rgba(242,239,230,.7);}
.band-grid{
  position:relative;display:grid;grid-template-columns:repeat(4,1fr);
  gap:16px;margin-top:26px;
}
.band-item{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(242,239,230,.14);
  border-radius:var(--r-md);padding:20px;
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.band-item:hover{background:rgba(255,255,255,.1);transform:translateY(-3px);}
.band-item .b-num{
  font-size:28px;font-weight:700;letter-spacing:-.02em;
  background:linear-gradient(120deg,#3FCB9A 0%,#FFB648 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.band-item .b-name{margin-top:6px;font-size:14px;font-weight:600;color:#F2EFE6;}
.band-item .b-desc{margin-top:6px;font-size:12px;color:rgba(242,239,230,.65);line-height:1.7;}

/* ---------- 非对称场景栅格 ---------- */
.asym-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:20px;margin-top:34px;}
.asym-main{
  grid-row:span 2;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.asym-main:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.asym-main img{width:100%;height:230px;object-fit:cover;background:var(--surface-2);}
.asym-body{padding:26px 28px 30px;}
.asym-body h3{font-size:19px;font-weight:600;color:var(--brand-900);}
.asym-body p{margin-top:10px;color:var(--text-2);font-size:15px;}
.asym-body ul{margin-top:16px;display:flex;flex-direction:column;gap:9px;}
.asym-body li{display:flex;gap:10px;font-size:14px;color:var(--text-2);}
.asym-body li svg{width:16px;height:16px;color:var(--brand-400);flex:none;margin-top:5px;}
.asym-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.asym-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.asym-card .icon{
  width:40px;height:40px;border-radius:50%;
  background:var(--grad-brand);color:#fff;display:grid;place-items:center;
}
.asym-card .icon svg{width:19px;height:19px;}
.asym-card h3{margin-top:14px;font-size:17px;font-weight:600;color:var(--brand-900);}
.asym-card p{margin-top:8px;font-size:14px;color:var(--text-2);}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:34px;}
.step{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:26px 22px 24px;box-shadow:var(--sh-1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.step .dot{
  width:32px;height:32px;border-radius:50%;background:var(--grad-brand);
  color:#fff;display:grid;place-items:center;font-size:14px;font-weight:700;
}
.step h3{margin-top:14px;font-size:16px;font-weight:600;color:var(--brand-900);}
.step p{margin-top:8px;font-size:14px;color:var(--text-2);line-height:1.75;}
.step .tip{margin-top:12px;font-size:12px;color:var(--text-3);}
.step::after{
  content:"";position:absolute;top:41px;right:-13px;width:16px;height:2px;
  background:var(--line);
}
.step:last-child::after{display:none;}

/* ---------- 区块标题 ---------- */
.sec-head{max-width:760px;}
.sec-head h2{
  font-size:clamp(22px,2.6vw,30px);line-height:1.28;font-weight:700;
  color:var(--brand-900);letter-spacing:-.01em;position:relative;padding-top:16px;
}
.sec-head h2::before{
  content:"";position:absolute;top:0;left:0;width:40px;height:3px;
  border-radius:3px;background:var(--grad-brand);
}
.sec-head p{margin-top:12px;color:var(--text-2);font-size:15px;}

/* ---------- FAQ ---------- */
.faq-list{margin-top:32px;display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;position:relative;
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.faq-item:hover{box-shadow:var(--sh-1);}
.faq-item::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;
  border-radius:0 4px 4px 0;background:var(--grad-brand);
  opacity:0;transition:opacity .2s var(--ease);
}
.faq-item.open::before{opacity:1;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:none;border:none;text-align:left;
  font-size:16px;font-weight:600;color:var(--brand-900);cursor:pointer;
}
.faq-q .plus{
  width:20px;height:20px;flex:none;color:var(--brand-400);
  transition:transform .2s var(--ease);
}
.faq-item.open .plus{transform:rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-item.open .faq-a{max-height:420px;}
.faq-a p{
  padding:0 24px 22px;font-size:15px;color:var(--text-2);line-height:1.8;
}

/* ---------- 通栏 CTA ---------- */
.cta-band{
  background:var(--brand-900);border-radius:var(--r-lg);
  padding:34px 36px;position:relative;overflow:hidden;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(63,203,154,.18) 0%,rgba(23,112,92,.05) 50%,rgba(240,147,43,.14) 100%);
}
.cta-band .cta-copy{position:relative;}
.cta-band h2{font-size:clamp(20px,2.2vw,24px);font-weight:700;color:#F2EFE6;letter-spacing:-.01em;}
.cta-band p{margin-top:8px;font-size:13px;color:rgba(242,239,230,.7);}
.cta-band .btn-cta{
  position:relative;background:var(--grad-hot);color:#3A2405;border:none;
  height:52px;padding:0 28px;border-radius:var(--r-input);font-weight:700;
  display:inline-flex;align-items:center;gap:8px;
  transition:transform .2s var(--ease),filter .2s var(--ease);
}
.cta-band .btn-cta:hover{transform:translateY(-2px);filter:brightness(1.08);}
.cta-band .btn-cta svg{width:18px;height:18px;}

/* ---------- 精简表单 ---------- */
.form-wrap{
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;
}
.form-intro h2{
  font-size:clamp(22px,2.6vw,30px);line-height:1.28;font-weight:700;
  color:var(--brand-900);letter-spacing:-.01em;position:relative;padding-top:16px;
}
.form-intro h2::before{
  content:"";position:absolute;top:0;left:0;width:40px;height:3px;
  border-radius:3px;background:var(--grad-brand);
}
.form-intro p{margin-top:14px;color:var(--text-2);font-size:15px;}
.form-points{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.form-points li{display:flex;gap:10px;font-size:14px;color:var(--text-2);}
.form-points svg{width:17px;height:17px;color:var(--brand-400);flex:none;margin-top:5px;}
.form-privacy{margin-top:20px;font-size:12px;color:var(--text-3);line-height:1.7;}
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sh-2);
}
.field{margin-bottom:20px;}
.field label{
  display:block;font-size:14px;font-weight:600;color:var(--brand-700);margin-bottom:8px;
}
.field .req{color:var(--accent-500);margin-left:2px;}
.field input,.field select{
  width:100%;height:48px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-input);
  background:var(--surface);color:var(--text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field input::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--brand-400);
  box-shadow:0 0 0 3px rgba(30,158,124,.18);
  background:var(--surface);
}
.field .hint{margin-top:6px;font-size:12px;color:var(--text-3);}
.field .err{margin-top:6px;font-size:12px;color:var(--danger);display:none;}
.field.invalid input,.field.invalid select{border-color:var(--danger);}
.field.invalid .err{display:block;}
.seg{display:flex;gap:10px;flex-wrap:wrap;}
.seg label{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 16px;border:1px solid var(--line);border-radius:999px;
  font-size:14px;color:var(--text-2);cursor:pointer;font-weight:500;
  transition:all .2s var(--ease);margin:0;
}
.seg input{position:absolute;opacity:0;width:1px;height:1px;}
.seg label:hover{background:var(--surface-2);}
.seg input:checked + span{color:var(--brand-700);font-weight:600;}
.seg label:has(input:checked){
  border-color:var(--brand-400);background:var(--surface-2);color:var(--brand-700);
}
.form-foot{font-size:12px;color:var(--text-3);margin-top:14px;line-height:1.7;}
.success{
  display:none;flex-direction:column;align-items:center;text-align:center;gap:14px;
  padding:26px 10px;
}
.success.show{display:flex;}
.success .ok{
  width:56px;height:56px;border-radius:50%;background:var(--grad-brand);
  color:#fff;display:grid;place-items:center;
}
.success .ok svg{width:26px;height:26px;}
.success h3{font-size:18px;font-weight:600;color:var(--brand-900);}
.success p{font-size:14px;color:var(--text-2);}

/* ---------- 页脚 ---------- */
.footer{
  background:var(--brand-900);color:#F2EFE6;margin-top:56px;
  padding-top:56px;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;
  padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer .brand-text{color:#F2EFE6;}
.f-brand p{
  margin-top:14px;font-size:13px;color:rgba(242,239,230,.7);line-height:1.8;max-width:300px;
}
.f-social{display:flex;gap:10px;margin-top:18px;}
.f-social a{
  width:36px;height:36px;border-radius:50%;
  border:1px solid rgba(242,239,230,.22);
  display:grid;place-items:center;color:#F2EFE6;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.f-social a:hover{background:rgba(255,255,255,.1);border-color:rgba(242,239,230,.4);}
.f-social svg{width:17px;height:17px;}
.f-col h4{font-size:14px;font-weight:600;color:#F2EFE6;margin-bottom:14px;}
.f-col ul{display:flex;flex-direction:column;gap:10px;}
.f-col li{font-size:13px;color:rgba(242,239,230,.7);line-height:1.7;}
.f-col a{font-size:13px;color:rgba(242,239,230,.7);transition:color .2s var(--ease);}
.f-col a:hover{color:#F2EFE6;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  padding:20px 0 26px;font-size:13px;color:rgba(242,239,230,.6);
}
.footer-bottom a{color:rgba(242,239,230,.6);}
.footer-bottom a:hover{color:#F2EFE6;}

/* ---------- 响应式 ---------- */
@media (min-width:992px){
  .topbar{display:none;}
  .overlay{display:none;}
  .sidebar{width:var(--side);transform:none;padding:24px 18px 20px;}
  .main{margin-left:var(--side);padding-top:0;}
}
@media (min-width:992px) and (max-width:1199px){
  :root{--side:84px;}
  .sidebar{padding:20px 12px;align-items:center;}
  .side-top{width:100%;display:flex;justify-content:center;}
  .brand-text{display:none;}
  .side-nav{width:100%;align-items:center;}
  .side-nav a{justify-content:center;padding:12px;width:48px;}
  .side-nav a span{display:none;}
  .side-bottom .btn{width:48px;padding:0;font-size:0;}
  .side-bottom .btn::after{content:"→";font-size:16px;}
  .side-note,.side-copy{display:none;}
  .verify-grid{grid-template-columns:260px 1fr;gap:32px;}
  .band-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991px){
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-media .shot img{height:300px;}
  .float-card{left:12px;bottom:-20px;}
  .verify-grid{grid-template-columns:1fr;gap:28px;}
  .verify-aside{position:static;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step::after{display:none;}
  .asym-grid{grid-template-columns:1fr;}
  .asym-main{grid-row:auto;}
  .form-wrap{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  body{font-size:15px;}
  .section{padding:40px 0;}
  .hero{padding:20px 0 4px;}
  .hero-lead{font-size:15px;}
  .hero-actions .btn{width:100%;}
  .hero-trust{gap:14px;}
  .hero-media .shot img{height:220px;}
  .float-card{left:10px;bottom:-16px;padding:12px 16px;min-width:140px;}
  .float-card .num{font-size:22px;}
  .dark-band{padding:26px 20px;}
  .band-grid{grid-template-columns:1fr 1fr;gap:12px;}
  .band-item{padding:16px;}
  .asym-body{padding:20px;}
  .steps{grid-template-columns:1fr;}
  .spec-row{grid-template-columns:1fr;gap:6px;padding:16px 18px;}
  .spec-key{font-size:13px;}
  .form-card{padding:22px;}
  .cta-band{padding:26px 22px;}
  .cta-band .btn-cta{width:100%;justify-content:center;}
  .footer{padding-top:38px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .faq-q{padding:16px 18px;font-size:15px;}
  .faq-a p{padding:0 18px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --brand-900:#0B2A26;
  --brand-700:#0E3B34;
  --brand-500:#17705C;
  --brand-400:#1E9E7C;
  --brand-300:#3FCB9A;
  --accent-500:#F0932B;
  --accent-400:#FFB648;
  --danger:#E5533D;
  --bg:#F5F2EA;
  --surface:#FFFFFF;
  --surface-2:#EFE9DE;
  --line:#E2DACB;
  --text:#1B2A26;
  --text-2:#5C6B66;
  --text-3:#8D9A95;
  --ink:#F2EFE6;
  --grad-brand:linear-gradient(135deg,#0E3B34 0%,#17705C 46%,#3FCB9A 100%);
  --grad-hot:linear-gradient(120deg,#F0932B 0%,#FFB648 100%);
  --shadow-1:0 1px 2px rgba(11,42,38,.06);
  --shadow-2:0 8px 24px rgba(11,42,38,.06);
  --shadow-3:0 18px 44px rgba(11,42,38,.12);
  --r-xl:28px;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:12px;
  --ease:cubic-bezier(.2,.8,.2,1);
  --sidebar-w:236px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-400);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-500)}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand-400);outline-offset:2px;border-radius:8px}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.015em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1120px;margin:0 auto;padding-inline:32px}

/* ---------- 侧栏导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--surface);border-right:1px solid var(--line);z-index:60;
}
.side-inner{display:flex;flex-direction:column;height:100%;padding:24px 18px;gap:22px}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--brand-700);letter-spacing:-.01em}
.brand:hover{color:var(--brand-500)}
.brand-mark{
  width:36px;height:36px;flex:none;border-radius:12px;background:var(--grad-brand);
  color:#fff;display:grid;place-items:center;box-shadow:var(--shadow-1);
}
.brand-mark svg{width:19px;height:19px}
.side-nav{display:flex;flex-direction:column;gap:4px;flex:1;margin-top:4px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;height:48px;padding:0 14px;
  border-radius:var(--r-sm);color:var(--text-2);font-size:15px;font-weight:500;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-item:hover{background:var(--surface-2);color:var(--brand-700)}
.nav-item.active{background:var(--surface-2);color:var(--brand-700);font-weight:600}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:4px;border-radius:999px;background:var(--grad-brand);
}
.ni-icon{width:18px;height:18px;flex:none;display:grid;place-items:center}
.ni-icon svg{width:18px;height:18px}
.side-foot{
  margin-top:auto;display:flex;flex-direction:column;gap:10px;
  padding-top:18px;border-top:1px solid var(--line);
}
.side-note{font-size:12px;color:var(--text-3);line-height:1.6}
.side-copy{font-size:12px;color:var(--text-3)}

/* ---------- 顶栏（移动端） ---------- */
.topbar{display:none}
.menu-btn{
  width:44px;height:44px;flex:none;border-radius:var(--r-sm);border:1px solid var(--line);
  background:var(--surface-2);color:var(--brand-700);display:grid;place-items:center;cursor:pointer;
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.menu-btn:hover{background:#E6DECD}
.menu-btn:active{transform:translateY(1px)}
.menu-btn svg{width:22px;height:22px}
.scrim{display:none}

/* ---------- 主内容 ---------- */
.main{margin-left:var(--sidebar-w)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-md);border:1px solid transparent;
  font-size:16px;font-weight:600;cursor:pointer;text-align:center;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn svg{width:18px;height:18px;flex:none}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--shadow-2)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-3)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--brand-700)}
.btn-ghost:hover{background:var(--surface-2);border-color:var(--brand-300);color:var(--brand-700);transform:translateY(-2px)}
.btn-hot{background:var(--grad-hot);color:#3A2A0B;box-shadow:var(--shadow-2)}
.btn-hot:hover{color:#3A2A0B;transform:translateY(-2px);filter:brightness(1.06)}
.btn-lg{height:52px}
.btn-block{width:100%}
.btn[disabled]{opacity:.6;cursor:not-allowed;transform:none}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-2);padding-top:28px;
}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--brand-400)}
.breadcrumb .sep{color:var(--text-3)}
.breadcrumb .current{color:var(--text);font-weight:600}

/* ---------- Hero ---------- */
.hero{position:relative;padding-block:36px 72px;overflow:hidden}
.hero::before{
  content:"";position:absolute;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(63,203,154,.18),rgba(63,203,154,0) 68%);
  top:-180px;right:-120px;pointer-events:none;
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:48px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:var(--surface-2);color:var(--brand-700);font-size:12px;font-weight:600;
}
.eyebrow svg{width:14px;height:14px;color:var(--brand-400)}
h1{
  font-size:clamp(28px,4.2vw,46px);line-height:1.18;letter-spacing:-.02em;
  margin:18px 0 0;font-weight:700;
}
.hero-lead{margin:16px 0 0;font-size:17px;color:var(--text-2);max-width:580px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.trust{display:flex;flex-wrap:wrap;gap:20px;margin-top:28px;font-size:12px;color:var(--text-2)}
.trust span{display:inline-flex;align-items:center;gap:6px}
.trust svg{width:16px;height:16px;color:var(--brand-400);flex:none}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/12;object-fit:cover;border-radius:var(--r-xl);
  background:var(--surface-2);box-shadow:var(--shadow-2);
}
.hero-media::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-xl);
  background:linear-gradient(200deg,rgba(11,42,38,.30),rgba(11,42,38,0) 58%);
}
.float-card{
  position:absolute;left:-16px;bottom:20px;z-index:2;background:var(--surface);
  border-radius:var(--r-lg);padding:16px 20px;box-shadow:var(--shadow-3);
}
.fc-num{
  font-size:26px;font-weight:700;letter-spacing:-.02em;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.fc-label{font-size:12px;color:var(--text-2);margin-top:2px}

/* ---------- 板块通用 ---------- */
.section{padding-block:88px}
.section-alt{background:var(--surface)}
.section-head{max-width:760px}
.h-dash{width:40px;height:3px;border-radius:999px;background:var(--grad-brand);margin-bottom:16px}
h2{font-size:clamp(22px,2.6vw,32px);line-height:1.25}
.section-head p{margin:14px 0 0;color:var(--text-2);font-size:16px}
.mt-40{margin-top:40px}

/* ---------- 徽章矩阵 ---------- */
.matrix{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:40px}
.m-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.m-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);border-color:#D6CCB8}
.m-icon{
  width:40px;height:40px;border-radius:999px;background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;margin-bottom:16px;
}
.m-icon svg{width:20px;height:20px}
.m-card h3{font-size:18px;line-height:1.4;margin-bottom:10px;font-weight:600}
.m-card p{font-size:14px;color:var(--text-2);line-height:1.75}

/* ---------- 图文交替 ---------- */
.alt{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;margin-top:56px}
.alt:first-of-type{margin-top:40px}
.alt-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-xl);
  background:var(--surface-2);box-shadow:var(--shadow-2);
}
.alt-body h3{font-size:clamp(20px,2.3vw,26px);line-height:1.3;font-weight:700}
.alt-body .alt-text{margin:16px 0 0;font-size:15px;color:var(--text-2)}
.alt-list{display:flex;flex-direction:column;gap:14px;margin-top:24px}
.alt-list li{display:flex;gap:12px;font-size:15px;color:var(--text-2);line-height:1.75}
.alt-list svg{width:18px;height:18px;flex:none;margin-top:5px;color:var(--brand-400)}
.alt.reverse .alt-media{order:2}

/* ---------- 数据条 ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.stat{padding:30px 26px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.s-num{font-size:clamp(24px,3vw,32px);font-weight:700;color:var(--brand-700);letter-spacing:-.02em}
.s-label{font-size:13px;color:var(--text-2);margin-top:6px}

/* ---------- 深色 CTA ---------- */
.band-wrap{padding-block:0 88px}
.band{
  position:relative;overflow:hidden;background:var(--brand-900);border-radius:var(--r-xl);
  padding:42px 44px;display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(63,203,154,.22),rgba(63,203,154,0) 58%);
}
.band > *{position:relative}
.band h2{color:var(--ink);font-size:clamp(20px,2.4vw,28px)}
.band p{margin-top:10px;font-size:13px;color:rgba(242,239,230,.72);max-width:560px}
.band .btn{flex:none}

/* ---------- 咨询表单 ---------- */
.contact-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:start}
.points{display:flex;flex-direction:column;gap:14px;margin-top:24px}
.points li{display:flex;gap:12px;font-size:15px;color:var(--text-2);line-height:1.75}
.points svg{width:18px;height:18px;flex:none;margin-top:5px;color:var(--brand-400)}
.privacy{margin-top:20px;font-size:13px;color:var(--text-3)}
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);
  padding:32px;box-shadow:var(--shadow-2);
}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}
.field label em{color:var(--accent-500);font-style:normal;margin-left:2px}
.field input,.field select{
  width:100%;height:48px;border-radius:var(--r-md);border:1px solid var(--line);
  background:var(--surface);padding:0 16px;font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field input::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--brand-400);box-shadow:0 0 0 3px rgba(30,158,124,.18);
}
.form-note{margin-top:14px;font-size:12px;color:var(--text-3);line-height:1.7}
.form-ok{text-align:center;padding:20px 8px}
.ok-icon{
  width:48px;height:48px;border-radius:999px;background:var(--surface-2);color:var(--brand-400);
  display:grid;place-items:center;margin:0 auto 14px;
}
.ok-icon svg{width:24px;height:24px}
.form-ok h3{font-size:18px;margin-bottom:8px}
.form-ok p{font-size:14px;color:var(--text-2)}

/* ---------- 页脚 ---------- */
.footer{background:var(--brand-900);color:rgba(242,239,230,.78);padding-top:64px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer .brand{color:var(--ink)}
.footer .brand:hover{color:var(--brand-300)}
.f-brand p{margin-top:16px;font-size:13px;line-height:1.85;max-width:290px;color:rgba(242,239,230,.68)}
.f-social{display:flex;gap:10px;margin-top:20px}
.f-social a{
  width:36px;height:36px;border-radius:999px;border:1px solid rgba(242,239,230,.24);
  display:grid;place-items:center;color:rgba(242,239,230,.85);
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.f-social a:hover{border-color:var(--brand-300);color:var(--brand-300);transform:translateY(-2px)}
.f-social svg{width:17px;height:17px}
.f-col h4{font-size:15px;font-weight:600;color:var(--ink);margin-bottom:16px}
.f-col ul{display:flex;flex-direction:column;gap:10px;font-size:13px}
.f-col a{color:rgba(242,239,230,.72)}
.f-col a:hover{color:var(--brand-300)}
.f-col li{line-height:1.7}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:48px;
  padding-block:22px 28px;display:flex;flex-wrap:wrap;justify-content:space-between;
  gap:12px;font-size:13px;color:rgba(242,239,230,.6);
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ---------- 响应式 ---------- */
@media (min-width:992px) and (max-width:1199px){
  :root{--sidebar-w:84px}
  .side-inner{padding:20px 12px;gap:18px;align-items:center}
  .brand-text,.ni-text,.side-note,.side-copy,.btn-label{display:none}
  .brand{justify-content:center}
  .nav-item{justify-content:center;width:48px;padding:0}
  .nav-item.active::before{left:-12px}
  .side-foot{align-items:center;width:100%}
  .side-foot .btn{width:48px;padding:0}
}
@media (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-media::after{border-radius:var(--r-lg)}
  .hero-media img{border-radius:var(--r-lg);aspect-ratio:16/9}
  .float-card{left:12px;bottom:12px}
  .matrix{grid-template-columns:repeat(2,minmax(0,1fr))}
  .alt{grid-template-columns:1fr;gap:28px;margin-top:40px}
  .alt.reverse .alt-media{order:0}
  .alt-media img{border-radius:var(--r-lg)}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat:nth-child(2n){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding-block:64px}
  .band-wrap{padding-block:0 64px}
}
@media (max-width:991px){
  .topbar{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    position:fixed;top:0;left:0;right:0;height:60px;padding:0 16px;
    background:var(--surface);border-bottom:1px solid var(--line);z-index:70;
  }
  .sidebar{
    width:280px;transform:translateX(-100%);transition:transform .28s var(--ease);
    box-shadow:var(--shadow-3);z-index:90;
  }
  body.drawer-open .sidebar{transform:translateX(0)}
  .scrim{
    display:block;position:fixed;inset:0;background:rgba(11,42,38,.45);
    opacity:0;visibility:hidden;transition:opacity .25s var(--ease);z-index:80;
  }
  body.drawer-open .scrim{opacity:1;visibility:visible}
  body.drawer-open{overflow:hidden}
  .main{margin-left:0;padding-top:60px}
}
@media (max-width:767px){
  .container{padding-inline:20px}
  .section{padding-block:48px}
  .band-wrap{padding-block:0 48px}
  .matrix{grid-template-columns:1fr}
  .band{flex-direction:column;align-items:flex-start;padding:32px 24px}
  .band .btn{width:100%}
  .hero{padding-block:28px 48px}
  h1{font-size:28px}
  .hero-lead{font-size:15px}
  .hero-actions .btn{flex:1 1 100%}
  .form-card{padding:24px 20px;border-radius:var(--r-lg)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .stats{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--line);padding:22px 0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .breadcrumb{padding-top:20px}
}

/* roulang page: category4 */
:root{
  --brand-900:#0B2A26;
  --brand-700:#0E3B34;
  --brand-500:#17705C;
  --brand-400:#1E9E7C;
  --brand-300:#3FCB9A;
  --accent-500:#F0932B;
  --accent-400:#FFB648;
  --danger:#E5533D;
  --bg:#F5F2EA;
  --surface:#FFFFFF;
  --surface-2:#EFE9DE;
  --line:#E2DACB;
  --text:#1B2A26;
  --text-2:#5C6B66;
  --text-3:#8D9A95;
  --grad-brand:linear-gradient(135deg,#0E3B34 0%,#17705C 46%,#3FCB9A 100%);
  --grad-hot:linear-gradient(120deg,#F0932B 0%,#FFB648 100%);
  --sh-1:0 1px 2px rgba(11,42,38,.06);
  --sh-2:0 8px 24px rgba(11,42,38,.06);
  --sh-3:0 18px 44px rgba(11,42,38,.12);
  --r-lg:28px;
  --r-md:20px;
  --r-sm:12px;
  --r-input:14px;
  --ease:cubic-bezier(.2,.8,.2,1);
  --sidebar:236px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);}
p{margin:0;}
.num{font-variant-numeric:tabular-nums;}

/* 侧栏 */
.sidebar{
  position:fixed;
  inset:0 auto 0 0;
  width:var(--sidebar);
  background:var(--surface);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  padding:24px 16px;
  z-index:60;
}
.brand{
  display:flex;align-items:center;gap:10px;
  font-weight:700;font-size:17px;letter-spacing:-.01em;color:var(--brand-700);
}
.brand-mark{
  width:36px;height:36px;border-radius:11px;flex:none;
  background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;
  box-shadow:0 6px 16px rgba(14,59,52,.24);
}
.brand-mark svg{width:19px;height:19px;}
.side-nav{margin-top:28px;display:flex;flex-direction:column;gap:4px;}
.side-nav a{
  position:relative;
  display:flex;align-items:center;gap:11px;
  padding:11px 12px;border-radius:var(--r-sm);
  font-size:14.5px;color:var(--text-2);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.side-nav a svg{width:17px;height:17px;flex:none;opacity:.85;}
.side-nav a:hover{background:var(--surface-2);color:var(--brand-700);}
.side-nav a.active{background:var(--surface-2);color:var(--brand-700);font-weight:600;}
.side-nav a.active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:4px;
  border-radius:0 4px 4px 0;background:var(--grad-brand);
}
.side-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);}
.side-foot .btn{width:100%;justify-content:center;}
.side-foot small{display:block;margin-top:12px;font-size:12px;line-height:1.6;color:var(--text-3);}

/* 顶部栏（移动端） */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:60px;
  background:var(--surface);border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;
  padding:0 16px;z-index:70;
}
.menu-btn{
  width:44px;height:44px;border:1px solid var(--line);background:var(--surface);
  border-radius:var(--r-sm);display:grid;place-items:center;cursor:pointer;
  color:var(--brand-700);transition:background .2s var(--ease);
}
.menu-btn:hover{background:var(--surface-2);}
.menu-btn svg{width:20px;height:20px;}
.scrim{
  position:fixed;inset:0;background:rgba(11,42,38,.45);
  opacity:0;pointer-events:none;transition:opacity .2s var(--ease);z-index:65;
}
.scrim.show{opacity:1;pointer-events:auto;}

/* 布局 */
.main{margin-left:var(--sidebar);min-height:100vh;}
.container{max-width:1120px;margin:0 auto;padding:0 32px;}
.section{padding:86px 0;}
.section.tight{padding:60px 0;}

/* 面包屑 */
.crumb{
  display:flex;gap:8px;align-items:center;flex-wrap:wrap;
  font-size:13px;color:var(--text-2);padding:26px 0 0;
}
.crumb i{font-style:normal;color:var(--text-3);}
.crumb .cur{color:var(--text);}

/* Hero */
.hero{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:var(--brand-900);
  color:#F2EFE6;
  padding:56px;
  margin-top:22px;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.26;
}
.hero::before{
  content:"";position:absolute;width:520px;height:520px;right:-140px;top:-200px;
  background:var(--grad-brand);opacity:.35;border-radius:50%;filter:blur(30px);
}
.hero-inner{position:relative;z-index:2;max-width:660px;}
.hero h1{
  color:#F4F1E8;
  font-size:clamp(28px,4.2vw,46px);
  line-height:1.18;letter-spacing:-.02em;
}
.hero .lead{margin-top:16px;font-size:16.5px;line-height:1.85;color:rgba(242,239,230,.82);}
.hero .tags{margin-top:24px;display:flex;gap:10px;flex-wrap:wrap;}
.hero .tag{
  padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#EAE6DA;
}
.hero .actions{margin-top:30px;display:flex;gap:12px;flex-wrap:wrap;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-input);
  font-size:16px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.btn svg{width:17px;height:17px;}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--sh-2);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-3);}
.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--brand-700);}
.btn-ghost:hover{background:var(--surface-2);transform:translateY(-2px);}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.34);color:#F2EFE6;}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);transform:translateY(-2px);}
.btn-hot{background:var(--grad-hot);color:#3A2408;}
.btn-hot:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(240,147,43,.34);}
.btn-lg{height:52px;}
.btn:active{transform:translateY(1px);}
.btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,button:focus-visible{
  outline:2px solid var(--brand-400);outline-offset:2px;
}

/* 区块标题 */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap;}
.sec-head .line{width:40px;height:3px;border-radius:3px;background:var(--grad-brand);margin-bottom:14px;}
.sec-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.25;letter-spacing:-.01em;}
.sec-head p{margin-top:10px;font-size:14.5px;color:var(--text-2);max-width:640px;}
.sec-head .more{color:var(--brand-400);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.sec-head .more svg{width:16px;height:16px;transition:transform .2s var(--ease);}
.sec-head .more:hover svg{transform:translateX(4px);}

/* 胶囊筛选 */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:34px;}
.chip{
  height:38px;display:inline-flex;align-items:center;
  padding:0 18px;border-radius:999px;font-size:13.5px;font-weight:600;
  background:var(--surface);border:1px solid var(--line);color:var(--text-2);cursor:pointer;
  transition:all .2s var(--ease);
}
.chip:hover{background:var(--surface-2);color:var(--brand-700);}
.chip.on{background:var(--grad-brand);color:#fff;border-color:transparent;box-shadow:var(--sh-2);}

/* 卡片瀑布 */
.falls{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start;}
.falls .col{display:flex;flex-direction:column;gap:24px;}
.falls .col:nth-child(2){margin-top:44px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:#D6CDBB;}
.card-body{padding:22px 24px 24px;}
.card .thumb{position:relative;background:var(--surface-2);}
.card .thumb img{width:100%;object-fit:cover;transition:transform .3s var(--ease);}
.card:hover .thumb img{transform:scale(1.03);}
.card .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,42,38,0) 40%,rgba(11,42,38,.34) 100%);
}
.card .thumb.tall img{aspect-ratio:4/3;}
.card .thumb.wide img{aspect-ratio:16/9;}
.card .thumb.short img{aspect-ratio:16/10;}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;background:var(--surface-2);color:var(--brand-700);
}
.badge-hot{background:var(--grad-hot);color:#3A2408;}
.badge-dark{background:var(--brand-900);color:#EFEAD9;}
.card h3{margin-top:14px;font-size:19px;line-height:1.4;transition:color .2s var(--ease);}
.card:hover h3{color:var(--brand-400);}
.card p.desc{margin-top:10px;font-size:14.5px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card .meta{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}
.card .meta .read{color:var(--brand-400);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.card .meta .read svg{width:15px;height:15px;transition:transform .2s var(--ease);}
.card:hover .meta .read svg{transform:translateX(4px);}

/* 处理要点列表 */
.points{display:grid;gap:14px;}
.point{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px 20px;box-shadow:var(--sh-1);
}
.point .ico{
  width:38px;height:38px;border-radius:11px;flex:none;display:grid;place-items:center;
  background:var(--grad-brand);color:#fff;
}
.point .ico svg{width:18px;height:18px;}
.point h3{font-size:16.5px;}
.point p{margin-top:6px;font-size:14px;color:var(--text-2);line-height:1.75;}

/* 深浅数据条 */
.band{
  background:var(--brand-900);border-radius:var(--r-lg);padding:38px 40px;color:#F2EFE6;
  position:relative;overflow:hidden;
}
.band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(23,112,92,.5),rgba(63,203,154,.14) 60%,transparent);
}
.band-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.band-grid .item{border-left:1px solid rgba(255,255,255,.16);padding-left:18px;}
.band-grid .item strong{display:block;font-size:26px;font-weight:700;color:#7FE3BE;line-height:1.2;}
.band-grid .item span{display:block;margin-top:8px;font-size:13.5px;color:rgba(242,239,230,.72);line-height:1.6;}

/* FAQ */
.faq-list{display:grid;gap:12px;}
.faq{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;position:relative;
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.faq.open{box-shadow:var(--sh-2);border-color:#D6CDBB;}
.faq.open::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad-brand);
}
.faq-q{
  width:100%;background:none;border:0;cursor:pointer;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--text);
}
.faq-q svg{width:20px;height:20px;flex:none;color:var(--brand-400);transition:transform .2s var(--ease);}
.faq.open .faq-q svg{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s var(--ease);}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--text-2);}

/* 通栏 CTA */
.cta-band{
  background:var(--grad-brand);border-radius:var(--r-lg);padding:34px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  color:#fff;flex-wrap:wrap;box-shadow:var(--sh-2);
}
.cta-band h2{color:#fff;font-size:clamp(19px,2.2vw,26px);line-height:1.3;}
.cta-band p{margin-top:8px;font-size:13.5px;color:rgba(255,255,255,.82);}

/* 表单 */
.form-wrap{display:grid;grid-template-columns:5fr 7fr;gap:36px;align-items:start;}
.form-side h2{font-size:clamp(21px,2.4vw,29px);line-height:1.3;}
.form-side ul{margin-top:22px;display:grid;gap:14px;}
.form-side li{display:flex;gap:11px;font-size:14.5px;color:var(--text-2);line-height:1.7;}
.form-side li svg{width:18px;height:18px;flex:none;color:var(--brand-400);margin-top:3px;}
.form-side .privacy{margin-top:22px;font-size:12.5px;color:var(--text-3);line-height:1.7;}
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px;box-shadow:var(--sh-2);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text);}
.field label em{color:var(--accent-500);font-style:normal;margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;height:48px;border-radius:var(--r-input);border:1px solid var(--line);
  background:var(--surface);padding:0 14px;font-size:15px;color:var(--text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field textarea{height:120px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-400);
  box-shadow:0 0 0 3px rgba(30,158,124,.18);background:#FCFBF8;
}
.seg{display:flex;gap:10px;flex-wrap:wrap;}
.seg button{
  height:42px;padding:0 16px;border-radius:999px;border:1px solid var(--line);
  background:var(--surface);font-size:13.5px;font-weight:600;color:var(--text-2);cursor:pointer;
  transition:all .2s var(--ease);
}
.seg button.on{border-color:var(--brand-400);background:var(--surface-2);color:var(--brand-700);}
.err{display:none;margin-top:8px;font-size:12px;color:var(--danger);}
.field.invalid input,.field.invalid textarea{border-color:var(--danger);}
.field.invalid .err{display:block;}
.form-note{margin-top:14px;font-size:12px;color:var(--text-3);line-height:1.7;}
.form-success{
  display:none;text-align:center;padding:34px 10px;
}
.form-success.show{display:block;}
.form-success .ok{
  width:48px;height:48px;border-radius:50%;background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;margin:0 auto 18px;
}
.form-success .ok svg{width:24px;height:24px;}
.form-success h3{font-size:19px;}
.form-success p{margin-top:10px;font-size:14.5px;color:var(--text-2);}
.form-success .btn{margin-top:20px;}

/* 页脚 */
.footer{background:var(--brand-900);color:#EFEAD9;margin-top:20px;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;
  padding:64px 0 40px;
}
.footer .brand{color:#F2EFE6;}
.footer .f-brand p{margin-top:16px;font-size:13.5px;line-height:1.8;color:rgba(242,239,230,.72);max-width:300px;}
.f-social{display:flex;gap:10px;margin-top:18px;}
.f-social a{
  width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.24);
  display:grid;place-items:center;color:#EFEAD9;transition:all .2s var(--ease);
}
.f-social a:hover{background:rgba(255,255,255,.12);transform:translateY(-2px);}
.f-social svg{width:17px;height:17px;}
.f-col h4{font-size:15px;color:#F2EFE6;margin-bottom:16px;}
.f-col ul{display:grid;gap:11px;}
.f-col li,.f-col a{font-size:13.5px;color:rgba(242,239,230,.72);line-height:1.6;transition:color .2s var(--ease);}
.f-col a:hover{color:#7FE3BE;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 30px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(242,239,230,.6);
}

/* 入场动画 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* 断点 */
@media (max-width:1199px){
  :root{--sidebar:84px;}
  .sidebar{padding:22px 10px;align-items:center;}
  .sidebar .brand-text{display:none;}
  .side-nav a span{display:none;}
  .side-nav a{justify-content:center;padding:12px;position:relative;}
  .side-nav a:hover::after{
    content:attr(data-title);position:absolute;left:calc(100% + 12px);top:50%;transform:translateY(-50%);
    background:var(--brand-900);color:#F2EFE6;font-size:12px;padding:6px 10px;border-radius:8px;white-space:nowrap;z-index:80;
  }
  .side-foot .btn{width:44px;height:44px;padding:0;justify-content:center;}
  .side-foot .btn span{display:none;}
  .side-foot small{display:none;}
}
@media (max-width:991px){
  .topbar{display:flex;}
  .sidebar{
    transform:translateX(-100%);
    width:280px;align-items:stretch;padding:22px 16px;
    transition:transform .25s var(--ease);z-index:68;
  }
  .sidebar.open{transform:none;}
  .sidebar .brand-text{display:inline;}
  .side-nav a{justify-content:flex-start;padding:11px 12px;}
  .side-nav a span{display:inline;}
  .side-foot .btn{width:100%;height:48px;padding:0 24px;}
  .side-foot .btn span{display:inline;}
  .side-foot small{display:block;}
  .main{margin-left:0;padding-top:60px;}
  .container{padding:0 20px;}
  .section{padding:64px 0;}
  .hero{padding:40px 32px;}
  .falls{grid-template-columns:1fr;}
  .falls .col:nth-child(2){margin-top:0;}
  .band-grid{grid-template-columns:1fr 1fr;}
  .form-wrap{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;padding:48px 0 32px;}
}
@media (max-width:599px){
  body{font-size:15px;}
  .container{padding:0 16px;}
  .section{padding:44px 0;}
  .hero{padding:30px 22px;border-radius:22px;}
  .hero .actions .btn{width:100%;justify-content:center;}
  .sec-head{margin-bottom:24px;}
  .falls{gap:18px;}
  .falls .col{gap:18px;}
  .card-body{padding:18px 18px 20px;}
  .band{padding:26px 22px;border-radius:22px;}
  .band-grid{grid-template-columns:1fr;gap:18px;}
  .band-grid .item{border-left:0;border-top:1px solid rgba(255,255,255,.14);padding:14px 0 0;}
  .band-grid .item:first-child{border-top:0;padding-top:0;}
  .cta-band{padding:26px 22px;border-radius:22px;}
  .cta-band .btn{width:100%;justify-content:center;}
  .form-card{padding:22px;border-radius:22px;}
  .faq-q{padding:16px 18px;font-size:15.5px;}
  .faq-a p{padding:0 18px 18px;font-size:14.5px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding:40px 0 26px;}
  .footer-bottom{flex-direction:column;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

@keyframes spin{to{transform:rotate(360deg)}}