/* roulang page: index */
:root{
  --brand-900:#0B3F3A;
  --brand-700:#0E6E62;
  --brand-500:#16A08D;
  --brand-100:#E3F1EE;
  --accent:#E8803C;
  --accent-100:#FDEBDF;
  --ink-900:#14181A;
  --ink-700:#3A4442;
  --ink-500:#6B7573;
  --muted:#8FA39E;
  --bg:#FBF9F5;
  --bg-alt:#F3F6F4;
  --surface:#FFFFFF;
  --line:#E4EAE6;
  --success:#2E9E6B;
  --warn:#C9A227;
  --danger:#C94F3D;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --r-block:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,24,26,.05);
  --sh-2:0 6px 20px rgba(11,63,58,.07);
  --sh-3:0 14px 32px rgba(11,63,58,.13);
  --t:.22s ease;
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.9;color:var(--ink-700);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--brand-700);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--brand-900)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);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}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;white-space:nowrap;border:1px solid transparent;transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t)}
.btn-primary{background:var(--brand-700);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{background:var(--brand-900);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:#fff;color:var(--brand-700);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-900);box-shadow:var(--sh-1)}
.btn-ghost:active{background:var(--brand-100)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#d36f2f;color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(232,128,60,.28)}
.btn-accent:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}

/* ===== 头部导航 ===== */
.site-header{position:sticky;top:0;z-index:70;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow var(--t)}
.site-header.is-stuck{box-shadow:var(--sh-2)}
.brandbar-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900);font-weight:800;font-size:18px;letter-spacing:-.01em}
.logo-mark{width:34px;height:34px;flex:0 0 34px;display:grid;place-items:center;border-radius:12px;background:var(--brand-100)}
.logo-mark svg{width:22px;height:22px;display:block}
.logo:hover{color:var(--brand-900)}
.brandbar-right{display:flex;align-items:center;gap:18px}
.search-box{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:var(--r-pill);padding:4px 14px;background:#fff;transition:border-color var(--t),box-shadow var(--t)}
.search-box:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(22,160,141,.14)}
.search-box i{color:var(--ink-500);font-size:13px}
.search-box input{border:0;outline:0;width:142px;font-size:14px;background:transparent;padding:5px 0;line-height:1.4}
.hotline{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--ink-500);font-variant-numeric:tabular-nums;white-space:nowrap}
.hotline i{color:var(--brand-700)}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);color:var(--ink-900);place-items:center;font-size:16px}
.nav-toggle:hover{border-color:var(--brand-500);color:var(--brand-700)}

.channelbar{background:#fff;border-top:1px solid var(--line)}
.channelbar-inner{display:flex;align-items:center;gap:4px;height:48px;overflow-x:auto;-webkit-overflow-scrolling:touch}
.channelbar-inner::-webkit-scrollbar{height:0}
.channel{position:relative;display:inline-flex;align-items:center;height:48px;padding:0 18px;font-size:15px;font-weight:500;color:var(--ink-700);white-space:nowrap;border-radius:8px 8px 0 0;transition:color var(--t),background var(--t)}
.channel:hover{color:var(--brand-900);background:var(--brand-100)}
.channel.is-active{color:var(--brand-700);font-weight:700;background:rgba(14,110,98,.08)}
.channel.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--brand-700);border-radius:2px}

/* ===== 移动抽屉 ===== */
.mobile-drawer{position:fixed;inset:0;z-index:90;background:#fff;padding:20px 20px 32px;transform:translateY(-100%);visibility:hidden;transition:transform .3s ease,visibility .3s;overflow-y:auto}
.mobile-drawer.is-open{transform:translateY(0);visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);display:grid;place-items:center;color:var(--ink-900)}
.drawer-nav{display:grid;margin:20px 0 24px}
.drawer-nav a{display:block;padding:15px 14px;font-size:16px;font-weight:600;color:var(--ink-900);border-left:3px solid transparent;border-bottom:1px solid var(--line)}
.drawer-nav a.is-active{color:var(--brand-700);border-left-color:var(--brand-700);background:var(--brand-100)}
.drawer-tel{margin-top:18px;font-size:14px;color:var(--ink-500)}
.drawer-tel i{color:var(--brand-700);margin-right:6px}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;padding:76px 0 92px;background:repeating-linear-gradient(115deg,rgba(14,110,98,.04) 0 2px,transparent 2px 14px),var(--bg)}
.hero-grid{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,4fr);gap:48px;align-items:center}
.hero-tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-700);background:var(--brand-100);padding:6px 14px;border-radius:var(--r-pill)}
.hero-title{font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:800;color:var(--ink-900);letter-spacing:-.01em;margin:18px 0 14px;max-width:15em}
.hero-sub{font-size:17px;line-height:1.85;color:var(--ink-700);max-width:32em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 28px}
.hero-trust{display:flex;flex-wrap:wrap;gap:22px;border-top:1px solid var(--line);padding-top:20px}
.hero-trust li{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-500)}
.hero-trust i{color:var(--brand-500)}
.hero-media{position:relative;border-radius:var(--r-block);overflow:hidden;box-shadow:var(--sh-2);background:var(--brand-100)}
.hero-media img{width:100%;height:400px;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(227,241,238,.16) 0%,rgba(11,63,58,.46) 100%)}
.hero-badge{position:absolute;left:20px;bottom:20px;z-index:2;background:rgba(255,255,255,.95);border-radius:var(--r-card);padding:12px 18px;box-shadow:var(--sh-2)}
.hero-badge .badge-num{display:block;font-size:26px;font-weight:800;line-height:1.1;color:var(--brand-700);font-variant-numeric:tabular-nums}
.hero-badge .badge-num span{font-size:15px}
.hero-badge .badge-label{font-size:13px;color:var(--ink-500)}

/* ===== 板块通用 ===== */
.section{padding:96px 0}
.section-alt{background:var(--bg-alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.35;font-weight:800;color:var(--ink-900);letter-spacing:-.01em}
.section-head p{margin-top:12px;font-size:15px;color:var(--ink-500);max-width:44em}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700);white-space:nowrap}
.link-more i{transition:transform var(--t);font-size:12px}
.link-more:hover i{transform:translateX(4px)}

/* ===== 数据指标 ===== */
.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.metric{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t)}
.metric:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.metric.is-feature{background:var(--brand-100);border-color:rgba(14,110,98,.2)}
.metric-icon{width:36px;height:36px;border-radius:10px;background:rgba(14,110,98,.1);color:var(--brand-700);display:grid;place-items:center;font-size:15px}
.metric-num{font-size:clamp(32px,4vw,50px);line-height:1.1;font-weight:800;color:var(--brand-700);font-variant-numeric:tabular-nums;margin:14px 0 4px;white-space:nowrap}
.metric.is-feature .metric-num{color:var(--brand-900)}
.metric-num span{font-size:18px;font-weight:700;margin-left:2px}
.metric-label{font-size:15px;font-weight:600;color:var(--ink-900)}
.metric-desc{font-size:13px;line-height:1.7;color:var(--ink-500);margin-top:4px}

/* ===== 服务矩阵 ===== */
.service-matrix{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:24px;align-items:stretch}
.svc-lead{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-block);overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t)}
.svc-lead:hover{transform:translateY(-3px);box-shadow:var(--sh-3)}
.svc-lead-media{height:266px;overflow:hidden;background:var(--bg-alt)}
.svc-lead-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.svc-lead:hover .svc-lead-media img{transform:scale(1.04)}
.svc-lead-body{padding:28px;display:flex;flex-direction:column;gap:12px;flex:1}
.svc-lead-body h3{font-size:22px;font-weight:800;color:var(--ink-900);letter-spacing:-.01em;line-height:1.5}
.svc-lead-body p{font-size:15px;line-height:1.85;color:var(--ink-700)}
.svc-side{display:grid;grid-template-rows:auto auto 1fr;gap:24px}
.svc-mini{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t)}
.svc-mini:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.svc-icon{width:32px;height:32px;border-radius:9px;background:rgba(14,110,98,.12);color:var(--brand-700);display:grid;place-items:center;font-size:14px;margin-bottom:12px}
.svc-mini h3{font-size:17px;font-weight:700;color:var(--ink-900);margin-bottom:8px;line-height:1.5}
.svc-mini p{font-size:14px;line-height:1.8;color:var(--ink-500)}
.svc-link{margin-top:12px;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700)}
.svc-link i{font-size:12px;transition:transform var(--t)}
.svc-link:hover i{transform:translateX(4px)}
.svc-list{background:var(--brand-900);border-radius:var(--r-card);padding:22px}
.svc-list h3{font-size:16px;font-weight:700;color:#fff;margin-bottom:8px}
.svc-list li{border-bottom:1px solid rgba(255,255,255,.14)}
.svc-list li:last-child{border-bottom:0}
.svc-list a{display:block;padding:9px 0;font-size:14px;color:rgba(255,255,255,.82)}
.svc-list a:hover{color:#fff}

/* ===== 资讯卡片 ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t);height:100%}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3)}
.news-card-link{display:block;height:100%}
.news-thumb{display:block;height:180px;overflow:hidden;background:var(--bg-alt)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{display:block;padding:20px}
.news-cat{display:inline-block;font-size:12px;font-weight:600;color:var(--brand-700);background:rgba(14,110,98,.1);padding:3px 10px;border-radius:var(--r-pill)}
.news-title{font-size:16px;font-weight:700;line-height:1.6;color:var(--ink-900);margin:12px 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-sum{font-size:15px;line-height:1.8;color:var(--ink-500);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-500)}
.news-more{color:var(--brand-700);font-weight:600;display:inline-flex;align-items:center;gap:5px}
.news-more i{font-size:11px;transition:transform var(--t)}
.news-card:hover .news-more i{transform:translateX(3px)}
.news-empty{grid-column:1/-1;min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-card);padding:32px;text-align:center}
.news-empty i{font-size:28px;color:var(--brand-500)}
.news-empty p{font-size:15px;color:var(--ink-500)}

/* ===== 对比区 ===== */
.seg{display:inline-flex;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-pill);padding:4px}
.seg-btn{padding:8px 18px;border-radius:var(--r-pill);font-size:14px;font-weight:600;color:var(--ink-500);transition:background var(--t),color var(--t)}
.seg-btn:hover{color:var(--brand-900)}
.seg-btn.is-active{background:var(--brand-700);color:#fff}
.compare{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-block);box-shadow:var(--sh-1);padding:6px 28px}
.compare-row{display:grid;grid-template-columns:156px minmax(0,1fr) 132px;gap:24px;align-items:center;padding:24px 0;border-bottom:1px solid var(--line)}
.compare-row:last-child{border-bottom:0}
.compare-dim{font-size:15px;font-weight:600;color:var(--ink-900)}
.compare-bars{display:grid;gap:8px}
.bar{display:block;height:10px;border-radius:var(--r-pill);transition:width .4s ease}
.bar-a{background:var(--muted)}
.bar-b{background:var(--brand-700)}
.compare-nums{display:grid;gap:8px;justify-items:end;font-size:14px;font-weight:700;font-variant-numeric:tabular-nums}
.num-a{color:var(--muted)}
.num-b{color:var(--brand-700)}
.compare-legend{display:flex;flex-wrap:wrap;gap:20px;margin-top:22px;font-size:13px;color:var(--ink-500)}
.compare-legend span{display:inline-flex;align-items:center;gap:8px}
.dot{width:10px;height:10px;border-radius:50%;display:inline-block}
.dot-a{background:var(--muted)}
.dot-b{background:var(--brand-700)}
.compare-cta{margin-top:30px}

/* ===== 流程 ===== */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.flow-step{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 22px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t)}
.flow-step:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.flow-num{width:36px;height:36px;border-radius:50%;background:var(--brand-700);color:#fff;display:grid;place-items:center;font-size:15px;font-weight:800;font-variant-numeric:tabular-nums}
.flow-step h3{font-size:17px;font-weight:700;color:var(--ink-900);margin:14px 0 8px;line-height:1.5}
.flow-step p{font-size:14px;line-height:1.8;color:var(--ink-500)}

/* ===== 合作方 ===== */
.partners-wrap{padding:8px 0}
.partners-title{font-size:14px;color:var(--ink-500);margin-bottom:18px;text-align:center}
.partners{display:flex;flex-wrap:wrap;gap:16px}
.partner{flex:1 1 150px;text-align:center;font-size:15px;font-weight:700;color:#9aa8a4;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:16px 12px;letter-spacing:.02em;filter:grayscale(1);transition:color var(--t),border-color var(--t),filter var(--t)}
.partner:hover{color:var(--brand-700);border-color:rgba(14,110,98,.28);filter:none}

/* ===== FAQ ===== */
.faq{max-width:860px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0;font-size:16px;font-weight:700;color:var(--ink-900);cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{width:28px;height:28px;flex:0 0 28px;border-radius:8px;background:var(--brand-100);color:var(--brand-700);display:grid;place-items:center;font-size:12px;transition:background var(--t)}
.faq-item[open] .faq-icon{background:var(--brand-700);color:#fff}
.faq-icon .fa-minus{display:none}
.faq-item[open] .faq-icon .fa-plus{display:none}
.faq-item[open] .faq-icon .fa-minus{display:inline-block}
.faq-body{padding:0 44px 22px 0;font-size:15px;line-height:1.85;color:var(--ink-700)}

/* ===== 联系表单 ===== */
.contact-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:start}
.contact-copy h2{font-size:clamp(22px,2.6vw,32px);font-weight:800;color:var(--ink-900);line-height:1.35}
.contact-copy > p{margin-top:14px;font-size:15px;color:var(--ink-500)}
.contact-points{margin-top:26px}
.contact-points li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.contact-points li:last-child{border-bottom:0}
.contact-points i{color:var(--brand-500);margin-top:6px;font-size:15px}
.contact-points strong{display:block;font-size:15px;font-weight:700;color:var(--ink-900)}
.contact-points span{font-size:14px;color:var(--ink-500)}
.contact-form{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-block);padding:24px;box-shadow:var(--sh-2);display:grid;gap:16px}
.field label{display:block;font-size:13px;color:var(--ink-500);margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:var(--r-input);background:#fff;font-size:15px;transition:border-color var(--t),box-shadow var(--t)}
.field input,.field select{height:48px;padding:0 14px}
.field textarea{height:auto;padding:12px 14px;line-height:1.8;resize:vertical;min-height:130px}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(22,160,141,.14)}
.form-note{background:#E9F6EF;color:var(--success);border-radius:var(--r-input);padding:12px 14px;font-size:14px;line-height:1.7}

/* ===== 页脚 ===== */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.76);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px}
.site-footer h3{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.02em}
.footer-brand .logo{color:#fff}
.footer-brand .logo-mark{background:rgba(255,255,255,.14)}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.7);margin-top:14px;max-width:30em}
.footer-col li,.footer-col a{font-size:14px;line-height:2;color:rgba(255,255,255,.76)}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.16)}
.footer-bottom-inner{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;padding-top:18px;padding-bottom:18px;font-size:13px;color:rgba(255,255,255,.6)}

/* ===== 返回顶部 ===== */
.to-top{position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:50%;background:var(--brand-700);color:#fff;display:grid;place-items:center;box-shadow:var(--sh-2);opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity var(--t),visibility var(--t),transform var(--t),background var(--t);z-index:60}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--brand-900);color:#fff}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:64px 0}
  .hero{padding:56px 0 68px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media img{height:320px}
  .hero-title{max-width:20em}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .service-matrix{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr))}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media (max-width:768px){
  .search-box,.hotline{display:none}
  .nav-toggle{display:grid}
  .channelbar{display:none}
  .news-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .compare{padding:4px 20px}
  .compare-row{grid-template-columns:1fr;gap:12px;align-items:start;padding:20px 0}
  .compare-nums{display:flex;gap:18px;justify-items:start}
  .svc-lead-media{height:220px}
  .partners{gap:12px}
  .partner{flex:1 1 44%}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .logo-text{font-size:16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .metric{padding:20px 16px}
  .metric-num{font-size:30px}
  .metric-num span{font-size:15px}
  .section-head{margin-bottom:28px}
  .news-title{font-size:15.5px}
  .faq-body{padding-right:0}
  .contact-form{padding:20px 16px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .to-top{right:16px;bottom:16px}
}

/* roulang page: category1 */
:root{
  --brand-900:#0B3F3A;
  --brand-700:#0E6E62;
  --brand-500:#16A08D;
  --brand-100:#E3F1EE;
  --accent:#E8803C;
  --accent-dark:#C9672A;
  --accent-100:#FDEBDF;
  --ink-900:#14181A;
  --ink-700:#3A4442;
  --ink-500:#6B7573;
  --bg:#FBF9F5;
  --surface:#FFFFFF;
  --surface-alt:#F3F6F4;
  --line:#E4EAE6;
  --mute:#8FA39E;
  --ok:#2E9E6B;
  --warn:#C9A227;
  --err:#C94F3D;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(20,24,26,.05);
  --sh-2:0 6px 20px rgba(11,63,58,.07);
  --sh-3:0 14px 32px rgba(11,63,58,.13);
  --ease:.22s ease;
  --font:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  color:var(--ink-700);
  background-color:var(--bg);
  background-image:repeating-linear-gradient(135deg,rgba(14,110,98,.018) 0 2px,transparent 2px 14px);
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;object-fit:cover}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
::selection{background:var(--brand-100);color:var(--brand-900)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (max-width:1023px){.container{padding:0 24px}}
@media (max-width:767px){.container{padding:0 16px}}

/* ========== 网格骨架（覆盖 Foundation 默认外观） ========== */
.grid-x{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px}
.grid-x>.cell{flex:0 0 auto;width:100%;min-width:0;padding-left:12px;padding-right:12px}
@media (min-width:768px){
  .medium-6{width:50%}
  .medium-4{width:33.3333%}
}
@media (min-width:1024px){
  .large-4{width:33.3333%}
  .large-6{width:50%}
  .large-8{width:66.6667%}
}

/* ========== 按钮 ========== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;letter-spacing:.01em;border:1px solid transparent;transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);white-space:nowrap}
.btn-primary{background:var(--brand-700);color:#fff}
.btn-primary:hover{background:var(--brand-900);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dark);transform:translateY(-1px);box-shadow:0 10px 24px rgba(232,128,60,.28)}
.btn-accent:active{transform:translateY(0);box-shadow:none}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-line{border-color:var(--line);background:var(--surface);color:var(--ink-900)}
.btn-line:hover{border-color:var(--brand-500);color:var(--brand-700);box-shadow:var(--sh-1)}

/* ========== 顶部品牌行 ========== */
.site-header{position:sticky;top:0;z-index:80}
.brandbar{background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow var(--ease)}
.site-header.is-stuck .brandbar{box-shadow:var(--sh-2)}
.brandbar-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:32px;height:32px;display:inline-grid;place-items:center}
.logo-mark svg{width:32px;height:32px;display:block}
.logo-text{font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--brand-900)}
.brand-actions{display:flex;align-items:center;gap:18px;min-width:0}
.search-box{display:flex;align-items:center;gap:8px;height:38px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-input);background:var(--surface-alt);transition:border-color var(--ease),background var(--ease)}
.search-box:focus-within{border-color:var(--brand-500);background:var(--surface)}
.search-box i{font-size:13px;color:var(--ink-500)}
.search-box input{width:150px;border:0;background:transparent;font-size:14px;color:var(--ink-900);outline:none}
.search-box input::placeholder{color:var(--ink-500)}
.hotline{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-700);font-variant-numeric:tabular-nums;white-space:nowrap}
.hotline i{color:var(--brand-700);font-size:13px}
.menu-toggle{display:none;width:42px;height:42px;border-radius:var(--r-btn);border:1px solid var(--line);color:var(--brand-900);font-size:16px;align-items:center;justify-content:center}
.menu-toggle:hover{background:var(--surface-alt)}

/* ========== 频道行 ========== */
.channelbar{background:var(--surface);border-bottom:1px solid var(--line)}
.channelbar-inner{display:flex;align-items:flex-end;gap:6px;padding-top:6px}
.channel{position:relative;display:inline-block;padding:12px 16px 14px;font-size:15px;font-weight:600;color:var(--ink-700);border-bottom:2px solid transparent;border-radius:8px 8px 0 0;transition:color var(--ease),background var(--ease),border-color var(--ease)}
.channel:hover{color:var(--brand-700);background:rgba(14,110,98,.05)}
.channel.is-active{color:var(--brand-700);background:rgba(14,110,98,.08);border-bottom-color:var(--brand-700)}

/* ========== 移动抽屉 ========== */
.mobile-drawer{position:fixed;left:0;right:0;top:0;z-index:120;background:var(--surface);padding:88px 24px 32px;box-shadow:var(--sh-3);transform:translateY(-100%);transition:transform .3s ease;max-height:100vh;overflow-y:auto}
.mobile-drawer.is-open{transform:translateY(0)}
.mobile-drawer a{display:block;padding:16px 14px;font-size:16px;font-weight:600;color:var(--ink-900);border-bottom:1px solid var(--line);border-left:3px solid transparent}
.mobile-drawer a:hover{background:var(--surface-alt)}
.mobile-drawer a.is-active{color:var(--brand-700);border-left-color:var(--brand-700);background:rgba(14,110,98,.06)}
.mobile-drawer .drawer-cta{margin-top:22px;width:100%;border-bottom:0}
.mobile-drawer .drawer-note{margin-top:16px;font-size:14px;color:var(--ink-500)}
.drawer-close{position:absolute;top:20px;right:20px;width:42px;height:42px;border-radius:var(--r-btn);border:1px solid var(--line);display:grid;place-items:center}

/* ========== 面包屑 ========== */
.crumb-wrap{background:var(--surface);border-bottom:1px solid var(--line)}
.crumb{display:flex;align-items:center;gap:10px;height:48px;font-size:14px;color:var(--ink-500)}
.crumb a{color:var(--ink-500);transition:color var(--ease)}
.crumb a:hover{color:var(--brand-700)}
.crumb .sep{color:var(--mute)}
.crumb .current{color:var(--ink-900);font-weight:600}

/* ========== 分类头图 Hero ========== */
.hero-cat{position:relative;min-height:300px;display:flex;align-items:center;overflow:hidden;background:var(--brand-900)}
.hero-cat-bg{position:absolute;inset:0;background-size:cover;background-position:center center}
.hero-cat::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(11,63,58,.88) 0%,rgba(14,110,98,.70) 55%,rgba(22,160,141,.62) 100%)}
.hero-cat-inner{position:relative;z-index:2;color:#fff;padding:72px 0 68px;max-width:820px}
.hero-tag{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);font-size:13px;letter-spacing:.02em;margin-bottom:18px}
.hero-cat h1{font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:800;letter-spacing:-.01em;color:#fff;margin-bottom:14px}
.hero-cat p{font-size:17px;line-height:1.85;color:rgba(255,255,255,.88);max-width:34em}

/* ========== 板块通用 ========== */
.section{padding:96px 0}
.section-alt{background:var(--surface-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
@media (max-width:1023px){.section{padding:64px 0}}
@media (max-width:767px){.section{padding:48px 0}}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.35;font-weight:800;letter-spacing:-.01em;color:var(--ink-900);margin-bottom:12px}
.section-head p{font-size:16px;color:var(--ink-500);max-width:40em}

/* ========== 锚点 + 内容分栏 ========== */
.layout-side{display:grid;grid-template-columns:252px minmax(0,1fr);gap:48px;align-items:start}
.anchor-nav{position:sticky;top:132px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:20px 18px;box-shadow:var(--sh-1)}
.anchor-title{font-size:14px;font-weight:800;color:var(--ink-900);letter-spacing:.02em;padding:0 10px 12px;border-bottom:1px solid var(--line);margin-bottom:10px}
.anchor-link{display:block;padding:10px 12px;font-size:14px;color:var(--ink-700);border-left:3px solid transparent;border-radius:8px;transition:background var(--ease),color var(--ease),border-color var(--ease)}
.anchor-link:hover{background:var(--surface-alt);color:var(--brand-700)}
.anchor-link.is-active{color:var(--brand-700);background:rgba(14,110,98,.08);border-left-color:var(--brand-700);font-weight:700}
.anchor-help{margin-top:16px;padding:16px;border-radius:var(--r-card);background:var(--brand-100);font-size:13px;line-height:1.75;color:var(--brand-900)}
.anchor-help strong{display:block;font-size:14px;margin-bottom:6px}

.doc-section{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:36px 40px;box-shadow:var(--sh-1);margin-bottom:28px;scroll-margin-top:132px}
.doc-section:last-child{margin-bottom:0}
.doc-section h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:800;letter-spacing:-.01em;color:var(--ink-900);padding-left:14px;border-left:4px solid var(--brand-700);margin-bottom:18px}
.doc-section p{font-size:16px;line-height:1.9;color:var(--ink-700);max-width:42em}
.doc-section p + p{margin-top:1.1em}
.doc-section .figure{margin-top:28px}
.doc-section .figure img{width:100%;aspect-ratio:16/9;border-radius:var(--r-img)}
.doc-section .figure figcaption{font-size:13px;color:var(--ink-500);text-align:center;margin-top:10px;line-height:1.7}

.info-card{margin-top:26px;background:var(--brand-100);border-radius:var(--r-card);padding:24px 28px}
.info-card h3{font-size:17px;font-weight:800;color:var(--brand-900);margin-bottom:12px}
.info-card li{display:flex;gap:10px;font-size:15px;line-height:1.8;color:var(--ink-700);padding:5px 0}
.info-card li i{color:var(--brand-700);font-size:12px;margin-top:8px;flex:0 0 auto}
.info-card.accent{background:var(--accent-100)}
.info-card.accent h3{color:#8A4415}
.info-card.accent li i{color:var(--accent-dark)}

@media (max-width:1023px){
  .layout-side{display:block;gap:0}
  .anchor-nav{position:static;display:flex;gap:8px;overflow-x:auto;padding:12px;margin-bottom:24px;border-radius:var(--r-lg);white-space:nowrap;-webkit-overflow-scrolling:touch}
  .anchor-title{display:none}
  .anchor-link{border-left:0;border-radius:999px;background:var(--surface-alt);padding:8px 16px;flex:0 0 auto}
  .anchor-link.is-active{border-left:0;background:var(--brand-100)}
  .anchor-help{display:none}
  .doc-section{padding:28px 24px;scroll-margin-top:96px}
}
@media (max-width:767px){
  .hero-cat-inner{padding:52px 0 48px}
  .doc-section{padding:24px 18px}
}

/* ========== 清单型数值块 ========== */
.metric-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden}
.metric-row{display:grid;grid-template-columns:220px minmax(0,1fr) 110px;gap:24px;align-items:center;padding:20px 28px;border-top:1px solid var(--line);transition:background var(--ease)}
.metric-row:first-child{border-top:0}
.metric-row:hover{background:var(--surface-alt)}
.metric-name{font-size:15px;font-weight:600;color:var(--ink-900)}
.metric-bar{height:8px;border-radius:999px;background:var(--line);overflow:hidden}
.metric-bar i{display:block;height:100%;border-radius:999px;background:var(--brand-700);transition:width .6s ease}
.metric-value{font-size:20px;font-weight:800;color:var(--brand-700);text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.metric-row.is-accent .metric-value{color:var(--accent-dark)}
.metric-row.is-accent .metric-bar i{background:var(--accent)}
@media (max-width:767px){
  .metric-row{grid-template-columns:1fr;gap:12px;padding:18px}
  .metric-value{text-align:left}
}

/* ========== FAQ ========== */
.faq{max-width:860px;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:0 28px;box-shadow:var(--sh-1)}
.faq-item{border-top:1px solid var(--line)}
.faq-item:first-child{border-top:0}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 0;text-align:left;font-size:16px;font-weight:700;color:var(--ink-900);transition:color var(--ease)}
.faq-q:hover{color:var(--brand-700)}
.faq-q i{width:28px;height:28px;flex:0 0 28px;display:grid;place-items:center;border-radius:50%;background:var(--brand-100);color:var(--brand-700);font-size:12px;transition:transform var(--ease),background var(--ease)}
.faq-item.is-open .faq-q i{background:var(--brand-700);color:#fff;transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding-bottom:22px;font-size:15px;line-height:1.85;color:var(--ink-700);max-width:44em}
@media (max-width:767px){.faq{padding:0 18px}}

/* ========== 轻量 CTA 条 ========== */
.cta-strip{background:var(--brand-900);border-radius:var(--r-lg);padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:36px;box-shadow:var(--sh-2)}
.cta-strip h2{font-size:clamp(20px,2.2vw,26px);font-weight:800;color:#fff;margin-bottom:10px;letter-spacing:-.01em}
.cta-strip p{font-size:15px;line-height:1.85;color:rgba(255,255,255,.78);max-width:40em}
@media (max-width:767px){
  .cta-strip{flex-direction:column;align-items:flex-start;padding:32px 24px;gap:24px}
  .cta-strip .btn{width:100%}
}

/* ========== 页脚 ========== */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.82);margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding:64px 0 44px}
.footer-brand .logo{margin-bottom:18px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{font-size:14px;line-height:2;color:rgba(255,255,255,.72);max-width:26em}
.footer-brand p + p{margin-top:10px}
.footer-col h3{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.02em}
.footer-col li{font-size:14px;line-height:2;color:rgba(255,255,255,.72)}
.footer-col a{color:rgba(255,255,255,.72);transition:color var(--ease)}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14)}
.footer-bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:18px 0;font-size:13px;line-height:1.8;color:rgba(255,255,255,.6)}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 36px}}
@media (max-width:600px){.footer-grid{grid-template-columns:1fr}}

/* ========== 回到顶部 ========== */
.to-top{position:fixed;right:24px;bottom:24px;z-index:90;width:48px;height:48px;border-radius:50%;background:var(--brand-700);color:#fff;display:grid;place-items:center;box-shadow:var(--sh-3);opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease),background var(--ease),transform var(--ease)}
.to-top.is-visible{opacity:1;visibility:visible}
.to-top:hover{background:var(--brand-900);transform:translateY(-2px)}
@media (max-width:767px){.to-top{right:16px;bottom:16px;width:44px;height:44px}}

/* ========== 响应式导航 ========== */
@media (max-width:1023px){
  .channelbar{display:none}
  .menu-toggle{display:inline-flex}
  .search-box{display:none}
}
@media (max-width:600px){
  .hotline{display:none}
  .brand-actions{gap:12px}
  .brandbar-inner{height:60px}
  .logo-text{font-size:16px}
}
@media (min-width:1024px){.mobile-drawer{display:none}}

/* roulang page: article */
:root{
  --brand-900:#0B3F3A;
  --brand-700:#0E6E62;
  --brand-500:#16A08D;
  --brand-100:#E3F1EE;
  --accent:#E8803C;
  --accent-100:#FDEBDF;
  --ink-900:#14181A;
  --ink-700:#3A4442;
  --ink-500:#6B7573;
  --bg:#FBF9F5;
  --surface:#FFFFFF;
  --surface-2:#F3F6F4;
  --line:#E4EAE6;
  --muted:#8FA39E;
  --ok:#2E9E6B;
  --warn:#C9A227;
  --err:#C94F3D;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --r-pill:999px;
  --r-block:20px;
  --sh-1:0 1px 2px rgba(20,24,26,.05);
  --sh-2:0 6px 20px rgba(11,63,58,.07);
  --sh-3:0 14px 32px rgba(11,63,58,.13);
  --t:.22s ease;
  --container:1200px;
  --sec-y:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;font-size:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  color:var(--ink-700);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--brand-700);text-decoration:none;background-color:transparent;transition:color var(--t)}
a:hover{color:var(--brand-900)}
h1,h2,h3,h4{color:var(--ink-900);font-weight:700;letter-spacing:-.01em;font-style:normal;margin:0}
h1{font-size:clamp(28px,4vw,44px);line-height:1.25}
h2{font-size:clamp(22px,2.6vw,32px);line-height:1.35}
h3{font-size:clamp(18px,1.6vw,22px);line-height:1.5}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none;padding:0}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.container{max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:var(--sec-y) 0}
.section-tight{padding:56px 0}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);transition:box-shadow var(--t)}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.brandbar{border-bottom:1px solid var(--line)}
.brandbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900)}
.logo:hover{color:var(--brand-700)}
.logo-mark{display:inline-flex;width:34px;height:34px;flex:0 0 34px}
.logo-mark svg{width:100%;height:100%}
.logo-text{font-size:18px;font-weight:800;letter-spacing:.01em;color:var(--brand-900)}
.logo:hover .logo-text{color:var(--brand-700)}
.brandbar-right{display:flex;align-items:center;gap:18px}
.search-box{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-pill);background:var(--surface-2);transition:border-color var(--t),background-color var(--t)}
.search-box:focus-within{border-color:var(--brand-500);background:#fff}
.search-box svg{width:16px;height:16px;flex:0 0 16px;stroke:var(--ink-500)}
.search-box input{width:150px;border:0;background:transparent;font-size:14px;outline:none}
.search-box input::placeholder{color:var(--ink-500)}
.hotline{font-size:14px;color:var(--ink-500);white-space:nowrap}
.channelbar{border-bottom:1px solid var(--line);background:var(--surface)}
.channelbar-inner{display:flex;align-items:center;gap:4px;height:52px;overflow-x:auto}
.channel{position:relative;display:inline-flex;align-items:center;height:52px;padding:0 16px;font-size:15px;color:var(--ink-700);white-space:nowrap;border-radius:8px 8px 0 0;transition:color var(--t),background-color var(--t)}
.channel:hover{color:var(--brand-700);background:rgba(14,110,98,.05)}
.channel.is-active{color:var(--brand-700);font-weight:700;background:rgba(14,110,98,.08)}
.channel.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;background:var(--brand-700)}
.menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:var(--surface);align-items:center;justify-content:center}
.menu-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900);border-radius:2px}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

/* ---------- 移动端抽屉 ---------- */
.mobile-drawer{display:none}
@media (max-width:768px){
  .mobile-drawer{
    display:block;
    position:fixed;inset:0;z-index:90;
    background:var(--surface);
    padding:20px 20px 32px;
    transform:translateY(-102%);
    transition:transform .28s ease;
    overflow-y:auto;
  }
  .mobile-drawer.is-open{transform:translateY(0)}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
  .drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);font-size:20px;line-height:1;color:var(--ink-700)}
  .drawer-nav{display:flex;flex-direction:column;margin:8px 0 20px}
  .drawer-link{padding:15px 12px;font-size:16px;color:var(--ink-900);border-bottom:1px solid var(--line);border-left:3px solid transparent}
  .drawer-link.is-active{color:var(--brand-700);border-left-color:var(--brand-700);background:rgba(14,110,98,.06);font-weight:700}
  .drawer-cta{width:100%;margin-bottom:16px}
  .drawer-tel{font-size:14px;color:var(--ink-500)}
}

/* ---------- 按钮 / 徽章 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border:1px solid transparent;border-radius:var(--r-btn);font-size:15px;font-weight:600;white-space:nowrap;transition:background-color var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t)}
.btn-primary{background:var(--brand-700);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--brand-900);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-outline{background:var(--surface);border-color:var(--line);color:var(--brand-900)}
.btn-outline:hover{border-color:var(--brand-500);color:var(--brand-700);background:var(--brand-100)}
.btn-light{background:#fff;color:var(--brand-700)}
.btn-light:hover{background:#F1FAF8;color:var(--brand-900);transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.badge{display:inline-block;align-self:flex-start;padding:3px 10px;border-radius:var(--r-pill);background:rgba(14,110,98,.1);color:var(--brand-700);font-size:12px;font-weight:700;letter-spacing:.02em}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);background:var(--surface-2);border:1px solid var(--line);color:var(--ink-500);font-size:13px;transition:color var(--t),border-color var(--t),background-color var(--t)}
.tag:hover{color:var(--brand-700);border-color:var(--brand-500);background:var(--brand-100)}

/* ---------- 面包屑 ---------- */
.crumb-wrap{padding-top:32px}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--ink-500)}
.breadcrumb a{color:var(--ink-500)}
.breadcrumb a:hover{color:var(--brand-700)}
.crumb-sep{color:var(--muted)}
.crumb-current{color:var(--ink-700);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头区 ---------- */
.article-head{max-width:860px;margin:0 auto;padding:28px 0 0;text-align:left}
.article-title{margin:18px 0 16px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-500);margin:0 0 28px}
.article-meta .dot{color:var(--muted)}
.article-cover{margin:0;border-radius:var(--r-img);overflow:hidden;background:var(--surface-2);box-shadow:var(--sh-2)}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-cover figcaption{padding:12px 4px 0;font-size:13px;color:var(--ink-500);text-align:center}
.article-shell{padding-bottom:72px}

/* ---------- 正文阅读区 ---------- */
.article-body{max-width:780px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--ink-700);padding-top:44px}
.article-body h2{position:relative;margin:40px 0 14px;padding-left:14px;font-size:clamp(20px,2.2vw,26px)}
.article-body h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:var(--brand-700)}
.article-body h3{margin:24px 0 12px;font-size:19px}
.article-body h4{margin:20px 0 10px;font-size:17px}
.article-body p{margin:0 0 1.1em}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:0}
.article-body ul li{position:relative;padding-left:18px;margin-bottom:8px}
.article-body ul li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:1px;background:var(--brand-700)}
.article-body ol{counter-reset:cmsol}
.article-body ol li{position:relative;padding-left:26px;margin-bottom:8px;counter-increment:cmsol}
.article-body ol li::before{content:counter(cmsol);position:absolute;left:0;top:.35em;width:18px;height:18px;line-height:18px;text-align:center;border-radius:6px;background:var(--brand-100);color:var(--brand-700);font-size:12px;font-weight:700;font-variant-numeric:tabular-nums}
.article-body blockquote{margin:24px 0;padding:20px;background:var(--brand-100);border-left:3px solid var(--brand-700);border-radius:0 var(--r-img) var(--r-img) 0;color:var(--ink-700)}
.article-body blockquote p{margin:0}
.article-body img{border-radius:var(--r-img);margin:20px auto}
.article-body figure{margin:24px 0}
.article-body figcaption{padding-top:10px;font-size:13px;color:var(--ink-500);text-align:center;line-height:1.7}
.article-body a{color:var(--brand-700);border-bottom:1px dashed var(--brand-500)}
.article-body a:hover{color:var(--brand-900);border-bottom-style:solid}
.article-body strong{color:var(--ink-900);font-weight:700}
.article-body code{background:var(--surface-2);border-radius:6px;padding:2px 6px;font-size:15px;color:var(--brand-900)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.article-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;font-size:15px;line-height:1.7}
.article-body th,.article-body td{border:0;border-bottom:1px solid var(--line);padding:12px 14px;text-align:left}
.article-body th{background:var(--surface-2);color:var(--ink-900);font-weight:700}
.article-empty{max-width:780px;margin:0 auto;padding:48px 32px;text-align:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-block);box-shadow:var(--sh-1)}
.article-empty h2{font-size:22px;margin-bottom:10px}
.article-empty p{color:var(--ink-500);font-size:15px;margin-bottom:20px}

/* ---------- 文末标签 ---------- */
.article-foot{max-width:780px;margin:0 auto;padding-top:36px;border-top:1px solid var(--line)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.foot-note{font-size:13px;color:var(--ink-500)}

/* ---------- 板块头 ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head.center{flex-direction:column;align-items:center;text-align:center}
.section-title{margin-bottom:8px}
.section-sub{font-size:15px;color:var(--ink-500);margin:0;max-width:62ch}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand-700)}
.link-more:hover{color:var(--brand-900)}
.link-more span{transition:transform var(--t)}
.link-more:hover span{transform:translateX(4px)}

/* ---------- 卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{display:flex;flex-direction:column;height:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:#D6E2DD}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{display:flex;flex-direction:column;gap:10px;flex:1;padding:20px}
.card-title{font-size:17px;line-height:1.55;margin:0}
.card-text{font-size:15px;line-height:1.8;color:var(--ink-500);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:10px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-500)}
.card-go{color:var(--brand-700);font-weight:700}

/* ---------- CTA 条 ---------- */
.cta-bar{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:36px 40px;border-radius:var(--r-block);background:var(--brand-700);color:#fff}
.cta-bar h2{color:#fff;font-size:clamp(20px,2.2vw,26px);margin-bottom:8px}
.cta-bar p{margin:0;font-size:15px;line-height:1.8;color:rgba(255,255,255,.84);max-width:56ch}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;padding:20px 4px;text-align:left;font-size:16px;font-weight:700;color:var(--ink-900);transition:color var(--t)}
.faq-q:hover{color:var(--brand-700)}
.faq-icon{position:relative;flex:0 0 32px;width:32px;height:32px;border-radius:8px;background:var(--brand-100)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;border-radius:2px;background:var(--brand-700);transition:transform var(--t),opacity var(--t)}
.faq-icon::before{left:9px;right:9px;top:15px;height:2px}
.faq-icon::after{top:9px;bottom:9px;left:15px;width:2px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-item.is-open .faq-a{max-height:440px}
.faq-a p{padding:0 4px 20px;font-size:15px;line-height:1.85;color:var(--ink-500);max-width:68ch}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:0;padding-top:24px;background:var(--brand-900);color:rgba(255,255,255,.78)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:32px;padding-top:40px;padding-bottom:40px}
.footer-brand .logo{margin-bottom:14px}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo:hover .logo-text{color:var(--brand-500)}
.footer-brand p{font-size:14px;line-height:2;color:rgba(255,255,255,.72);margin:0 0 10px}
.footer-col h3{font-size:14px;font-weight:700;color:#fff;margin-bottom:12px}
.footer-col li{font-size:14px;line-height:2;color:rgba(255,255,255,.72)}
.footer-col a{color:rgba(255,255,255,.72)}
.footer-col a:hover{color:#fff}
.footer-bottom{margin-top:8px;padding:16px 0;border-top:1px solid rgba(255,255,255,.14)}
.footer-bottom-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}
.footer-bottom p{margin:0;font-size:13px;color:rgba(255,255,255,.6)}

/* ---------- 返回顶部 ---------- */
.back-top{position:fixed;right:24px;bottom:28px;z-index:70;display:flex;align-items:center;justify-content:center;width:48px;height:48px;border:1px solid var(--line);border-radius:50%;background:#fff;color:var(--brand-700);box-shadow:var(--sh-2);opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity var(--t),transform var(--t),background-color var(--t),color var(--t),visibility var(--t)}
.back-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--sec-y:64px}
  .container{padding:0 24px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  :root{--sec-y:48px}
  .channelbar{display:none}
  .hotline{display:none}
  .search-box{display:none}
  .menu-toggle{display:inline-flex}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .article-body{font-size:16px;padding-top:32px}
  .article-body h2{margin-top:32px}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:28px 22px}
  .cta-bar .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:24px;padding-top:32px;padding-bottom:32px}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .logo-text{font-size:16px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .article-meta{font-size:13px}
  .article-empty{padding:36px 20px}
  .back-top{right:16px;bottom:18px}
}

/* roulang page: category2 */
:root{
  --brand-900:#0B3F3A;--brand-700:#0E6E62;--brand-500:#16A08D;--brand-100:#E3F1EE;
  --accent:#E8803C;--accent-100:#FDEBDF;
  --ink-900:#14181A;--ink-700:#3A4442;--ink-500:#6B7573;
  --bg:#FBF9F5;--card:#FFFFFF;--soft:#F3F6F4;--line:#E4EAE6;--mute:#8FA39E;
  --ok:#2E9E6B;--warn:#C9A227;--err:#C94F3D;
  --r-card:14px;--r-img:12px;--r-btn:10px;--r-input:10px;--r-block:20px;
  --sh-1:0 1px 2px rgba(20,24,26,.05);
  --sh-2:0 6px 20px rgba(11,63,58,.07);
  --sh-3:0 14px 32px rgba(11,63,58,.13);
  --t:.22s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink-700);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.9;letter-spacing:0;
}
h1,h2,h3,h4{color:var(--ink-900);font-weight:700;letter-spacing:-.01em;margin:0;line-height:1.35}
h1{font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:800}
h2{font-size:clamp(22px,2.6vw,32px);line-height:1.35;font-weight:800}
h3{font-size:clamp(18px,1.6vw,22px);line-height:1.5}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
a{color:var(--brand-700);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--brand-900)}
img{max-width:100%;display:block}
button{background:none;border:0;font:inherit;color:inherit;cursor:pointer}
input,textarea,select{font:inherit;color:var(--ink-900)}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;text-align:center;
  transition:background var(--t),color var(--t),box-shadow var(--t),transform var(--t),border-color var(--t);
}
.btn-primary{background:var(--brand-700);color:#fff}
.btn-primary:hover{background:var(--brand-900);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-outline{border-color:var(--brand-700);color:var(--brand-700);background:#fff}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-900);transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#D26F2F;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700)}
.link-arrow span.arr{transition:transform var(--t)}
.link-arrow:hover span.arr{transform:translateX(4px)}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60}
.brandbar{background:#fff;border-bottom:1px solid var(--line);transition:box-shadow var(--t)}
.site-header.is-scrolled .brandbar{box-shadow:var(--sh-2)}
.brandbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900)}
.logo:hover{color:var(--ink-900)}
.logo-mark{width:32px;height:32px;flex:0 0 32px;display:inline-flex}
.logo-mark svg{width:100%;height:100%}
.logo-text{font-size:17px;font-weight:800;letter-spacing:-.02em}
.brand-tools{display:flex;align-items:center;gap:16px}
.search-box{display:flex;align-items:center;gap:8px;height:40px;padding:0 12px;border:1px solid var(--line);border-radius:var(--r-input);background:var(--soft)}
.search-box svg{width:16px;height:16px;flex:0 0 16px;stroke:var(--ink-500)}
.search-box input{width:150px;border:0;box-shadow:none;background:transparent;font-size:14px;margin:0;height:auto;padding:0}
.search-box input:focus{outline:none;box-shadow:none}
.search-box:focus-within{border-color:var(--brand-500);background:#fff}
.hotline{font-size:13px;color:var(--ink-500);white-space:nowrap}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-btn);align-items:center;justify-content:center;background:#fff}
.nav-toggle i{display:block;width:18px;height:2px;background:var(--ink-900);position:relative;border-radius:2px}
.nav-toggle i::before,.nav-toggle i::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900);border-radius:2px;transition:transform var(--t)}
.nav-toggle i::before{top:-6px}
.nav-toggle i::after{top:6px}

.channelbar{background:#fff;border-bottom:1px solid var(--line)}
.channelbar-inner{display:flex;align-items:stretch;gap:4px;overflow-x:auto;scrollbar-width:none}
.channelbar-inner::-webkit-scrollbar{display:none}
.channel{position:relative;padding:14px 16px;font-size:15px;color:var(--ink-700);white-space:nowrap;border-radius:10px 10px 0 0}
.channel:hover{color:var(--brand-700);background:rgba(14,110,98,.05)}
.channel.is-active{color:var(--brand-700);font-weight:700;background:rgba(14,110,98,.08)}
.channel.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--brand-700);border-radius:2px}

.mobile-drawer{
  position:fixed;inset:0;background:#fff;z-index:80;padding:20px 20px 32px;
  transform:translateY(-102%);transition:transform .28s ease;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateY(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-btn);font-size:20px;line-height:1;color:var(--ink-700)}
.drawer-links{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.drawer-links a{padding:16px 4px;border-bottom:1px solid var(--line);color:var(--ink-700);font-size:16px}
.drawer-links a.is-active{color:var(--brand-700);font-weight:700;border-left:3px solid var(--brand-700);padding-left:12px;background:var(--brand-100)}
.drawer-foot{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.drawer-foot .hotline{font-size:14px}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:var(--bg);border-bottom:1px solid var(--line)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:14px;color:var(--ink-500)}
.crumb a{color:var(--ink-500)}
.crumb a:hover{color:var(--brand-700)}
.crumb .sep{color:var(--mute)}
.crumb .current{color:var(--ink-700);font-weight:600}

/* ---------- Hero ---------- */
.cat-hero{background:var(--soft);padding:72px 0;border-bottom:1px solid var(--line)}
.cat-hero-inner{display:grid;grid-template-columns:1.4fr 1fr;gap:48px;align-items:center}
.cat-hero-copy{padding-left:22px;border-left:2px solid var(--brand-700)}
.eyebrow{font-size:13px;letter-spacing:.06em;color:var(--brand-700);font-weight:700;margin-bottom:14px}
.cat-hero h1{margin-bottom:16px}
.cat-hero-copy .lead{font-size:17px;color:var(--ink-700);max-width:34em;margin:0}
.hero-metrics{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.hero-metric{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:18px 20px;box-shadow:var(--sh-1);transition:box-shadow var(--t),transform var(--t)}
.hero-metric:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.hm-line{display:flex;align-items:baseline;gap:6px}
.hm-num{font-size:clamp(28px,3.2vw,40px);font-weight:800;line-height:1.1;color:var(--brand-700);font-variant-numeric:tabular-nums}
.hm-unit{font-size:13px;color:var(--ink-500)}
.hero-metric p{margin:6px 0 0;font-size:13px;line-height:1.7;color:var(--ink-500)}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-soft{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head p{margin:12px 0 0;font-size:15px;color:var(--ink-500);max-width:42em}
.section-head .head-link{flex:0 0 auto}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.flow-step{position:relative;padding:0 24px}
.flow-step:first-child{padding-left:0}
.flow-step:last-child{padding-right:0}
.flow-step::after{
  content:"";position:absolute;top:19px;right:-14px;width:28px;border-top:1px dashed var(--mute);
}
.flow-step:last-child::after{display:none}
.flow-dot{width:40px;height:40px;border-radius:999px;background:var(--brand-100);color:var(--brand-700);font-weight:800;display:flex;align-items:center;justify-content:center;font-size:16px;font-variant-numeric:tabular-nums;margin-bottom:18px;border:1px solid #C9E3DE}
.flow-step h3{font-size:18px;margin-bottom:10px}
.flow-step p{font-size:14px;line-height:1.8;color:var(--ink-500);margin:0}

/* ---------- 分栏卡片区 ---------- */
.feature-row{margin-bottom:24px}
.row{margin-left:-12px;margin-right:-12px;max-width:none}
.row .column{padding-left:12px;padding-right:12px}
.feature-wide{
  display:grid;grid-template-columns:5fr 6fr;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-block);overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow var(--t),transform var(--t);
}
.feature-wide:hover{box-shadow:var(--sh-3);transform:translateY(-3px)}
.feature-wide-media{overflow:hidden;min-height:260px}
.feature-wide-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.feature-wide:hover .feature-wide-media img{transform:scale(1.04)}
.feature-wide-body{padding:32px}
.feature-wide-body h3{margin-bottom:14px}
.feature-wide-body p{font-size:15px;color:var(--ink-700);line-height:1.8}
.badge{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;background:rgba(14,110,98,.1);color:var(--brand-700);margin-bottom:14px}
.feature-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  height:100%;display:flex;flex-direction:column;box-shadow:var(--sh-1);transition:box-shadow var(--t),transform var(--t);
}
.feature-card:hover{box-shadow:var(--sh-3);transform:translateY(-3px)}
.feature-card-media{aspect-ratio:16/9;overflow:hidden}
.feature-card-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.feature-card:hover .feature-card-media img{transform:scale(1.04)}
.feature-card-body{padding:22px;display:flex;flex-direction:column;flex:1}
.feature-card-body h3{font-size:18px;margin-bottom:10px}
.feature-card-body p{font-size:15px;line-height:1.8;color:var(--ink-500);margin-bottom:18px}
.feature-card-body .link-arrow{margin-top:auto}

.text-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;height:100%}
.text-list h3{font-size:17px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.text-list li{display:flex;gap:10px;font-size:15px;line-height:1.8;padding:8px 0;color:var(--ink-700)}
.text-list li::before{content:"";flex:0 0 6px;width:6px;height:6px;margin-top:11px;border-radius:2px;background:var(--brand-500)}

/* ---------- 要点清单 ---------- */
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px 48px;max-width:960px}
.check-item{display:flex;gap:12px;align-items:flex-start;padding:14px 0;border-bottom:1px dashed var(--line)}
.check-ico{flex:0 0 24px;width:24px;height:24px;border-radius:999px;background:var(--brand-100);display:flex;align-items:center;justify-content:center;margin-top:4px}
.check-ico svg{width:13px;height:13px;stroke:var(--brand-700);stroke-width:2.6;fill:none}
.check-item span{font-size:15px;line-height:1.8;color:var(--ink-700)}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 4px;text-align:left;font-size:16px;font-weight:700;color:var(--ink-900);
}
.faq-q:hover{color:var(--brand-700)}
.faq-icon{flex:0 0 28px;width:28px;height:28px;border-radius:999px;background:var(--brand-100);position:relative;transition:background var(--t)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;top:50%;left:50%;background:var(--brand-700);border-radius:2px;transform:translate(-50%,-50%)}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px;transition:transform var(--t),opacity var(--t)}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-item.is-open .faq-q{color:var(--brand-700)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease}
.faq-a p{padding:0 4px 20px;font-size:15px;line-height:1.85;color:var(--ink-500);max-width:44em}

/* ---------- 表单 ---------- */
.contact-wrap{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.trust-list{margin-top:24px;display:flex;flex-direction:column;gap:14px}
.trust-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-700)}
.trust-list .dot{flex:0 0 8px;width:8px;height:8px;margin-top:11px;border-radius:999px;background:var(--accent)}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-block);padding:24px;box-shadow:var(--sh-2)}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--ink-500);margin-bottom:8px}
.field input,.field textarea{
  width:100%;height:48px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-input);
  background:#fff;box-shadow:none;margin:0;font-size:15px;transition:border-color var(--t),box-shadow var(--t);
}
.field textarea{height:auto;padding:12px 14px;resize:vertical;line-height:1.8}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(22,160,141,.14)}
.form-note{font-size:13px;color:var(--ink-500);margin-top:12px}
.form-alert{display:none;margin-top:14px;padding:12px 14px;border-radius:var(--r-btn);font-size:14px;line-height:1.7}
.form-alert.is-ok{display:block;background:rgba(46,158,107,.12);color:#1E6B49;border:1px solid rgba(46,158,107,.3)}
.form-alert.is-err{display:block;background:rgba(201,79,61,.1);color:#9B3A2C;border:1px solid rgba(201,79,61,.3)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#D7E3E0;padding-top:32px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding:40px 32px 32px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.9;color:#AFC3BF;max-width:34em}
.footer-col h3{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-col li{font-size:14px;line-height:2;color:#AFC3BF}
.footer-col a{color:#AFC3BF}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:8px}
.footer-bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 32px;font-size:13px;color:#93A9A5}
.footer-bottom-inner p{margin:0}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:28px;bottom:28px;width:48px;height:48px;border-radius:999px;
  background:var(--brand-700);color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);opacity:0;pointer-events:none;transition:opacity var(--t),transform var(--t),background var(--t);z-index:70;
}
.to-top.is-show{opacity:1;pointer-events:auto}
.to-top:hover{background:var(--brand-900);transform:translateY(-3px)}
.to-top svg{width:18px;height:18px;stroke:#fff;stroke-width:2.4;fill:none}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .container{padding:0 24px}
  .hotline{display:none}
  .search-box{display:none}
  .nav-toggle{display:flex}
  .brand-tools .btn-primary{display:none}
  .channelbar{display:none}
  .cat-hero-inner{grid-template-columns:1fr;gap:32px}
  .cat-hero{padding:56px 0}
  .section{padding:64px 0}
  .flow{grid-template-columns:1fr 1fr;gap:32px 0}
  .flow-step{padding:0 20px}
  .flow-step:nth-child(2)::after{display:none}
  .flow-step:nth-child(odd){padding-left:0}
  .flow-step:nth-child(even){padding-right:0}
  .contact-wrap{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:32px 24px 24px}
  .footer-bottom-inner{padding:16px 24px;flex-direction:column;align-items:flex-start;gap:8px}
}
@media screen and (max-width:767px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .cat-hero{padding:44px 0}
  .cat-hero-copy{padding-left:16px}
  .hero-metrics{grid-template-columns:1fr 1fr;gap:12px}
  .hero-metric{padding:14px 16px}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px}
  .feature-wide{grid-template-columns:1fr}
  .feature-wide-media{min-height:200px;aspect-ratio:16/9}
  .feature-wide-body{padding:22px}
  .flow{grid-template-columns:1fr;gap:28px}
  .flow-step{padding:0}
  .flow-step::after{display:none}
  .check-grid{grid-template-columns:1fr;gap:0}
  .footer-grid{grid-template-columns:1fr;padding:28px 16px 20px}
  .footer-bottom-inner{padding:16px}
  .to-top{right:16px;bottom:16px;width:44px;height:44px}
}
@media screen and (max-width:479px){
  .hero-metrics{grid-template-columns:1fr}
  .brand-tools{gap:10px}
  .logo-text{font-size:15px}
}