*{margin:0;padding:0;box-sizing:border-box}

html{scroll-behavior:smooth}

a{text-decoration:none;color:inherit}

img{max-width:100%;display:block}

.container{max-width:1200px;margin:0 auto;padding:0 20px}


/* ===== 顶部工具条 ===== */

.topbar{background:var(--c-ink);color:#b9c2cf;font-size:12.5px}

.topbar .container{display:flex;justify-content:space-between;align-items:center;height:36px;flex-wrap:wrap}

.topbar .tb-left{display:flex;align-items:center;gap:18px}

.topbar .tb-left .city{color:#fff;font-weight:600;display:flex;align-items:center;gap:5px}

.topbar .tb-left .city b{color:var(--c-accent)}

.topbar a{color:#c6cedb;margin-left:14px;transition:.2s}

.topbar a:hover{color:#fff}


/* ===== 主 Header ===== */

.header{background:var(--c-white);box-shadow:0 2px 20px rgba(14,30,60,.06);position:sticky;top:0;z-index:100}

.header .container{display:flex;align-items:center;height:76px;gap:28px}

.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}

.logo-badge{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,var(--c-brand),#12c0a6);display:flex;align-items:center;justify-content:center;color:#fff;font-size:24px;box-shadow:0 6px 16px rgba(14,159,138,.35);flex-shrink:0}

.logo-word b{font-size:24px;font-weight:800;letter-spacing:.5px;display:block;line-height:1;color:var(--c-ink)}

.logo-word b em{font-style:normal;color:var(--c-brand)}

.logo-word span{font-size:10.5px;color:var(--c-gray-l);letter-spacing:2px}

.h-search{flex:1;max-width:520px;position:relative}

.h-search input{width:100%;height:44px;border:2px solid var(--c-line);border-radius:22px;padding:0 78px 0 20px;font-size:14px;outline:none;background:var(--c-bg);transition:.2s}

.h-search input:focus{border-color:var(--c-brand);background:#fff}

.h-search .h-btn{position:absolute;right:4px;top:4px;bottom:4px;width:68px;border-radius:20px;border:none;background:var(--c-brand);color:#fff;font-size:14px;cursor:pointer;transition:.2s}

.h-search .h-btn:hover{background:var(--c-brand-dark)}

.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px}

.header-actions .mk{font-size:13px;color:var(--c-gray);cursor:pointer;padding:8px;transition:.2s}

.header-actions .mk:hover{color:var(--c-brand)}

.btn{padding:10px 22px;border-radius:10px;font-size:14px;font-weight:600;border:none;cursor:pointer;transition:.2s;display:inline-flex;align-items:center;gap:7px}

.btn-ask{background:linear-gradient(135deg,var(--c-accent),#ff9352);color:#fff;box-shadow:0 6px 16px rgba(255,122,50,.32)}

.btn-ask:hover{transform:translateY(-2px)}

.menu-toggle{display:none;background:none;border:none;font-size:24px;color:var(--c-ink);cursor:pointer}


/* ===== 主导航 ===== */

.main-nav{background:var(--c-white);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}

.main-nav .container{display:flex;align-items:center;gap:2px;flex-wrap:wrap}

.main-nav a:hover{color:var(--c-brand);background:var(--c-brand-light)}

.main-nav a.active{color:var(--c-brand);font-weight:700}

.main-nav a.nav-more{margin-left:auto;color:var(--c-accent);font-weight:600}

.main-nav a.nav-more:hover{background:var(--c-accent-light);color:var(--c-accent)}


/* 侧栏 */

.side{display:flex;flex-direction:column;gap:20px}

.w-card{background:#fff;border:1px solid var(--c-line);border-radius:16px;padding:20px}

.w-title{font-size:16px;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:10px}

.w-title .dot{width:8px;height:20px;border-radius:4px;background:linear-gradient(180deg,var(--c-brand),var(--c-accent))}


/* ===== 页脚 ===== */

.f-top{padding:50px 0 0}

.f-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08)}

.f-brand .logo-word b{color:#fff}

.f-brand p{font-size:13px;margin-top:16px;max-width:360px}

.f-brand .lian{display:flex;gap:12px;margin-top:18px}

.f-brand .lian a{width:38px;height:38px;border-radius:10px;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;font-size:16px;transition:.2s;cursor:pointer}

.f-brand .lian a:hover{background:var(--c-brand)}

.f-col h5{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:1px}

.f-col a{display:block;font-size:13.5px;padding:6px 0;transition:.2s}

.f-col a:hover{color:#7fe0d0;transform:translateX(3px)}

.f-bottom{background:rgba(0,0,0,.25);padding:20px 0;font-size:12.5px;color:#7d93ad}

.f-bottom .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}

.f-bottom a{margin-left:10px;color:#7d93ad;transition:.2s}

.f-bottom a:hover{color:#fff}


/* ===== 回到顶部 ===== */

#toTop{position:fixed;right:26px;bottom:30px;width:46px;height:46px;border-radius:12px;background:linear-gradient(135deg,var(--c-brand),#12c0a6);color:#fff;border:none;font-size:20px;cursor:pointer;box-shadow:0 8px 20px rgba(14,159,138,.4);opacity:0;transform:translateY(10px);transition:.3s;z-index:99}

#toTop.show{opacity:1;transform:translateY(0)}


/* ===== 响应式 ===== */


:root{
  --c-brand:#0e9f8a; --c-brand-dark:#0a8271; --c-brand-light:#e6f7f4;
  --c-accent:#ff7a32; --c-accent-light:#fff3eb; --c-blue:#3b82f6;
  --c-ink:#1c2433; --c-gray:#5f6b7a; --c-gray-l:#8a95a5;
  --c-line:#e8ebf0; --c-bg:#f4f6f9; --c-white:#fff;
  --radius:14px; --shadow:0 12px 34px rgba(14,30,60,.10); --shadow-sm:0 4px 14px rgba(14,30,60,.07);
}

body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:var(--c-ink);background:var(--c-bg);line-height:1.7;-webkit-font-smoothing:antialiased}

.section{padding:40px 0}

.main-nav a{padding:12px 18px;font-size:15px;font-weight:500;color:var(--c-ink);border-radius:8px;transition:.2s}


/* ===== 面包屑 ===== */

.crumb{padding:18px 0 6px;font-size:13px;color:var(--c-gray-l)}

.crumb a{color:var(--c-gray);transition:.2s}

.crumb a:hover{color:var(--c-brand)}

.crumb .sep{margin:0 8px;color:#c3cad6}

footer{background:#101d2b;color:#8ba0ba;margin-top:30px}