:root {
            --ink: #0F2A3F;
            --steel: #23445F;
            --steel-2: #3A5A76;
            --signal: #E8632A;
            --signal-deep: #C84E1F;
            --road: #F3F6F8;
            --white: #ffffff;
            --line: #D8E1E8;
            --muted: #5B7488;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
            color: var(--ink);
            line-height: 1.75;
            background: var(--white);
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; display: block; }
        .container { width: 100%; max-width: 1160px; margin: 0 auto; padding: 0 20px; }
        a { color: inherit; text-decoration: none; }

        /* ===== 顶部信息条 ===== */
        .topbar { background: var(--ink); color: #dbe7f0; font-size: 13px; padding: 8px 0; }
        .topbar .container { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
        .topbar strong { color: var(--white); font-weight: 600; }
        .topbar .hot { color: #FFB28A; font-weight: 700; }

        /* ===== 头部导航 ===== */
        header.sticky {
            position: sticky; top: 0; z-index: 50;
            background: rgba(255,255,255,0.96); backdrop-filter: blur(6px);
            border-bottom: 1px solid var(--line);
        }
        .nav { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; gap: 16px; }
        .brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; color: var(--ink); }
        .brand .mark { width: 34px; height: 34px; border-radius: 8px; background: var(--ink); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 18px; flex-shrink: 0; }
        .brand small { display: block; font-size: 11px; font-weight: 500; color: var(--muted); letter-spacing: 0.5px; }
        nav.menu ul { list-style: none; display: flex; gap: 24px; }
        nav.menu a { color: var(--steel); font-size: 15px; font-weight: 500; }
        nav.menu a:hover { color: var(--signal); }
        .nav-cta { background: var(--signal); color: #fff; font-weight: 700; padding: 9px 18px; border-radius: 6px; font-size: 14px; display: inline-flex; align-items: center; gap: 8px; }
        .nav-cta:hover { background: var(--signal-deep); }
        .menu-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: 6px; width: 42px; height: 42px; font-size: 22px; color: var(--ink); cursor: pointer; }

        /* ===== Hero ===== */
        .hero {
            position: relative; color: #fff;
            background: linear-gradient(100deg, rgba(15,42,63,0.95) 0%, rgba(15,42,63,0.72) 55%, rgba(15,42,63,0.45) 100%), url("/assets/hero.jpg") center/cover no-repeat;
            padding: 88px 0 72px;
        }
        .hero .kicker { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.25); padding: 6px 14px; border-radius: 999px; font-size: 13px; letter-spacing: 1px; margin-bottom: 22px; }
        .hero h1 { font-size: clamp(32px, 5.4vw, 56px); font-weight: 900; line-height: 1.15; letter-spacing: 0.5px; }
        .hero h1 span { color: #FFB28A; }
        .hero .lead { font-size: clamp(16px, 2.2vw, 20px); max-width: 660px; margin: 18px 0 10px; color: #EAF1F6; }
        .hero .chips { display: flex; flex-wrap: wrap; gap: 10px; margin: 22px 0 30px; }
        .hero .chips span { border: 1px solid rgba(255,255,255,0.3); padding: 6px 14px; border-radius: 6px; font-size: 14px; background: rgba(0,0,0,0.12); }
        .hero .actions { display: flex; flex-wrap: wrap; gap: 14px; }
        .btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 26px; border-radius: 8px; font-weight: 700; font-size: 16px; }
        .btn-primary { background: var(--signal); color: #fff; }
        .btn-primary:hover { background: var(--signal-deep); }
        .btn-ghost { border: 1px solid rgba(255,255,255,0.5); color: #fff; }
        .btn-ghost:hover { background: rgba(255,255,255,0.12); }
        .hero-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 44px; }
        .stat { background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.2); border-radius: 10px; padding: 16px 18px; }
        .stat b { display: block; font-size: 24px; font-weight: 800; color: #fff; }
        .stat b em { font-style: normal; color: #FFB28A; }
        .stat small { color: #C9D9E6; font-size: 13px; }

        /* ===== 通用区块 ===== */
        section { padding: 64px 0; }
        .section-head { max-width: 780px; margin-bottom: 40px; }
        .section-head .tag { color: var(--signal); font-weight: 700; letter-spacing: 2px; font-size: 13px; display: block; margin-bottom: 8px; }
        .section-head h2 { font-size: clamp(26px, 3.6vw, 36px); font-weight: 800; line-height: 1.25; }
        .section-head p { color: var(--muted); margin-top: 12px; font-size: 16px; }
        .center .section-head { margin-left: auto; margin-right: auto; text-align: center; }
        .alt { background: var(--road); }

        /* ===== 核心服务 ===== */
        .service-grid { display: grid; grid-template-columns: 1fr; gap: 18px; }
        .service-card {
            background: var(--white); border: 1px solid var(--line); border-radius: 12px;
            padding: 26px; display: flex; flex-direction: column; gap: 12px;
        }
        .service-card:hover { border-color: var(--signal); }
        .service-card .ico { width: 48px; height: 48px; border-radius: 10px; background: #FFF1E8; color: var(--signal); display: flex; align-items: center; justify-content: center; }
        .service-card h3 { font-size: 20px; font-weight: 700; }
        .service-card p { color: var(--muted); font-size: 15px; flex: 1; }
        .service-card .tags { display: flex; flex-wrap: wrap; gap: 8px; }
        .service-card .tags span { font-size: 12px; color: var(--steel); background: var(--road); border: 1px solid var(--line); padding: 3px 10px; border-radius: 999px; }

        /* ===== 多角度优势 ===== */
        .angle-grid { display: grid; grid-template-columns: 1fr; gap: 18px; }
        .angle-card { border: 1px solid var(--line); border-left: 4px solid var(--signal); background: var(--white); border-radius: 10px; padding: 24px 26px; }
        .angle-card .num { font-size: 12px; font-weight: 800; letter-spacing: 2px; color: var(--signal); }
        .angle-card h3 { font-size: 19px; margin: 6px 0 10px; }
        .angle-card ul { list-style: none; display: grid; gap: 8px; }
        .angle-card li { position: relative; padding-left: 22px; color: #33424F; font-size: 15px; }
        .angle-card li::before { content: ""; position: absolute; left: 2px; top: 9px; width: 8px; height: 8px; border-radius: 50%; background: var(--signal); }

        /* ===== 发货流程（时间轴） ===== */
        .steps { display: grid; grid-template-columns: 1fr; gap: 14px; }
        .step { display: flex; gap: 18px; background: var(--white); border: 1px solid var(--line); border-radius: 10px; padding: 20px 22px; }
        .step .dot { width: 42px; height: 42px; border-radius: 50%; background: var(--ink); color: #fff; font-weight: 800; display: flex; align-items: center; justify-content: center; font-size: 17px; flex-shrink: 0; }
        .step h3 { font-size: 18px; margin-bottom: 4px; }
        .step p { color: var(--muted); font-size: 15px; }

        /* ===== 覆盖网络 ===== */
        .coverage-wrap { display: grid; grid-template-columns: 1fr; gap: 24px; }
        .coverage-lead { background: var(--ink); color: #EAF1F6; border-radius: 12px; padding: 28px; }
        .coverage-lead h3 { font-size: 22px; color: #fff; margin-bottom: 10px; }
        .coverage-lead p { color: #C9D9E6; font-size: 15px; }
        .region-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
        .region { background: var(--white); border: 1px solid var(--line); border-radius: 10px; padding: 16px; }
        .region b { display: block; font-size: 16px; }
        .region small { color: var(--muted); font-size: 13px; }

        /* ===== 企业服务 ===== */
        .biz { background: linear-gradient(120deg, var(--ink), var(--steel)); color: #fff; border-radius: 14px; padding: 36px; }
        .biz h3 { font-size: 24px; margin-bottom: 8px; }
        .biz > p { color: #C9D9E6; max-width: 680px; margin-bottom: 22px; }
        .biz-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
        .biz-item { background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.18); border-radius: 10px; padding: 16px; }
        .biz-item b { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; }
        .biz-item span { font-size: 13px; color: #C9D9E6; }

        /* ===== FAQ ===== */
        .faq-wrap { max-width: 860px; margin: 0 auto; }
        .faq-item { border: 1px solid var(--line); border-radius: 10px; margin-bottom: 12px; background: var(--white); overflow: hidden; }
        .faq-q { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 18px 22px; font-weight: 600; font-size: 16px; cursor: pointer; background: none; border: none; width: 100%; text-align: left; color: var(--ink); }
        .faq-q .ic { flex-shrink: 0; width: 24px; height: 24px; border-radius: 50%; border: 1.5px solid var(--signal); color: var(--signal); display: flex; align-items: center; justify-content: center; font-size: 16px; font-weight: 700; transition: transform .25s; }
        .faq-item.open .faq-q .ic { transform: rotate(45deg); }
        .faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
        .faq-a p { padding: 0 22px 20px; color: var(--muted); font-size: 15px; }

        /* ===== 联系 ===== */
        .contact { background: var(--ink); color: #fff; }
        .contact .section-head h2 { color: #fff; }
        .contact .section-head p { color: #C9D9E6; }
        .contact-card { background: #fff; color: var(--ink); border-radius: 14px; padding: 32px; display: grid; gap: 22px; }
        .contact-row { display: flex; gap: 16px; align-items: flex-start; }
        .contact-row .c-ico { width: 46px; height: 46px; border-radius: 10px; background: #FFF1E8; color: var(--signal); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
        .contact-row h4 { font-size: 13px; color: var(--muted); font-weight: 500; }
        .contact-row p { font-size: 19px; font-weight: 700; margin-top: 2px; }
        .contact-row p.small { font-size: 15px; font-weight: 500; color: #33424F; }
        .contact-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 4px; }
        .contact-actions .btn { flex: 1; min-width: 220px; justify-content: center; }

        /* ===== 底部固定拨号 ===== */
        .fixed-call {
            position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
            background: var(--signal); padding: 12px 16px; text-align: center;
            box-shadow: 0 -3px 12px rgba(0,0,0,0.18);
        }
        .fixed-call a { color: #fff; font-size: 18px; font-weight: 800; display: inline-flex; align-items: center; gap: 10px; }
        .fixed-call small { font-weight: 500; font-size: 13px; opacity: 0.9; }

        /* ===== 页脚 ===== */
        footer { background: #0B2133; color: #B7C7D4; padding: 40px 0 88px; margin-top: 0; }
        .footer-inner { display: grid; gap: 18px; }
        .footer-nav { display: flex; flex-wrap: wrap; gap: 12px 22px; }
        .footer-nav a { color: #C9D9E6; font-size: 14px; }
        .footer-nav a:hover { color: #FFB28A; }
        .footer-meta { font-size: 13px; color: #8FA5B6; display: grid; gap: 6px; }
        .footer-meta a { color: #8FA5B6; }
        .footer-note { font-size: 12px; color: #7B93A6; max-width: 720px; }

        /* ===== 响应式 ===== */
        @media (min-width: 640px) {
            .hero-stats { grid-template-columns: repeat(4, 1fr); }
            .service-grid { grid-template-columns: repeat(2, 1fr); }
            .region-grid { grid-template-columns: repeat(3, 1fr); }
            .biz-grid { grid-template-columns: repeat(4, 1fr); }
        }
        @media (min-width: 900px) {
            .angle-grid { grid-template-columns: repeat(2, 1fr); }
            .coverage-wrap { grid-template-columns: 5fr 7fr; align-items: stretch; }
            .contact-card { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 899px) {
            nav.menu {
                position: absolute; top: 100%; left: 0; right: 0; background: #fff;
                border-bottom: 1px solid var(--line); display: none; padding: 12px 20px 18px;
            }
            nav.menu.open { display: block; }
            nav.menu ul { flex-direction: column; gap: 6px; }
            nav.menu a { display: block; padding: 10px 4px; border-bottom: 1px solid var(--road); }
            .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
            .nav-cta { display: none; }
        }
        @media (max-width: 460px) {
            .hero { padding: 60px 0 56px; }
            .hero-stats { grid-template-columns: 1fr 1fr; }
            .region-grid { grid-template-columns: 1fr 1fr; }
        }
.related-sec{background:var(--ink,#0F2A3F);color:#fff;padding:46px 0;margin-top:0}
.related-sec .rc{max-width:1160px;margin:0 auto;padding:0 20px}
.related-sec h2{font-size:22px;font-weight:800;margin-bottom:6px;color:#fff}
.related-sec .sub{color:#B9C9D6;font-size:13px;margin-bottom:22px}
.related-links{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px;padding:0}
.related-links li{margin:0}
.related-links li a{display:block;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);padding:11px 14px;border-radius:8px;font-size:14px;color:#EAF1F6;line-height:1.4}
.related-links li a:hover{border-color:var(--signal,#E8632A);color:#FFB28A}
.wxkf-fab{position:fixed;left:16px;top:50%;transform:translateY(-50%);z-index:999;width:94px;background:#fff;border:2px solid var(--signal,#E8632A);border-radius:12px;padding:8px;box-shadow:0 8px 24px rgba(15,42,63,.22);text-align:center;display:none}
.wxkf-fab img{width:100%;border-radius:6px;display:block;border:0}
.wxkf-fab .t{font-size:12px;color:var(--ink,#0F2A3F);font-weight:700;margin-top:6px;line-height:1.3}
@media (min-width:768px){.wxkf-fab{display:block}}
@media (max-width:767px){.wxkf-fab{display:none}}