:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --primary-light: #eff4ff;
  --accent: #f97316;
  --accent-red: #ef4444;
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e5e7eb;
  --shadow: 0 8px 24px rgba(30, 64, 175, 0.08);
  --shadow-hover: 0 14px 32px rgba(30, 64, 175, 0.16);
  --radius: 14px;
  --maxw: 1200px;
}

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

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.text-center { text-align: center; }

/* ---------- 顶部公告条 ---------- */
.topbar {
  background: linear-gradient(90deg, var(--primary-dark), var(--primary));
  color: #fff;
  font-size: 13px;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; height: 38px; }
.topbar .ticker { overflow: hidden; white-space: nowrap; flex: 1; }
.topbar .ticker span { display: inline-block; padding-left: 100%; animation: ticker 22s linear infinite; }
.topbar a.light { color: #ffe; opacity: 0.95; }
@keyframes ticker { from { transform: translateX(0); } to { transform: translateX(-100%); } }

/* ---------- 导航 ---------- */
header.site-header { background: #fff; box-shadow: 0 2px 12px rgba(0,0,0,0.05); position: sticky; top: 0; z-index: 50; }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 22px; color: var(--primary); }
.logo .mark { width: 38px; height: 38px; border-radius: 10px; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; display: grid; place-items: center; font-size: 20px; }
.logo small { display: block; font-size: 11px; color: var(--muted); font-weight: 500; letter-spacing: 1px; }
.nav { display: flex; gap: 2px; align-items: center; }
.nav a { padding: 10px 12px; border-radius: 8px; font-size: 15px; font-weight: 500; color: #374151; transition: .2s; display: inline-flex; align-items: center; gap: 5px; white-space: nowrap; }
.nav a:hover { color: var(--primary); background: var(--primary-light); }
.nav a.active { color: #fff; background: var(--primary); }

/* ---------- 导航下拉菜单（服务支持） ---------- */
.nav-item { position: relative; }
.nav-item > a .caret { width: 8px; height: 8px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(45deg) translateY(-2px); transition: transform .22s; flex: none; }
.nav-item:hover > a .caret, .nav-item.open > a .caret { transform: rotate(225deg) translateY(-1px); }
.nav-dropdown {
  position: absolute; top: calc(100% + 8px); left: 50%; transform: translateX(-50%) translateY(-6px);
  min-width: 186px; padding: 8px; margin: 0; list-style: none;
  background: #fff; border: 1px solid var(--border); border-radius: 12px;
  box-shadow: 0 14px 34px rgba(15,23,42,.13);
  opacity: 0; visibility: hidden; pointer-events: none; transition: opacity .18s, transform .18s, visibility .18s;
  z-index: 60;
}
/* 悬停桥接：避免鼠标从主项移到菜单时因间隙丢失 hover */
.nav-item::after { content: ''; position: absolute; left: 0; right: 0; top: 100%; height: 10px; }
.nav-item:hover .nav-dropdown, .nav-item:focus-within .nav-dropdown, .nav-item.open .nav-dropdown {
  opacity: 1; visibility: visible; pointer-events: auto; transform: translateX(-50%) translateY(0);
}
.nav-dropdown li { margin: 0; }
.nav-dropdown a { display: block; padding: 10px 14px; border-radius: 8px; font-size: 14.5px; color: #374151; white-space: nowrap; }
.nav-dropdown a:hover { color: var(--primary); background: var(--primary-light); }
.nav-dropdown a.active { color: var(--primary); background: var(--primary-light); font-weight: 600; }
.nav-cta { display: flex; gap: 10px; align-items: center; }
.hotline { font-size: 13px; color: var(--muted); text-align: right; line-height: 1.3; }
.hotline b { color: var(--accent-red); font-size: 16px; }
.nav-toggle { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 42px; height: 42px; padding: 0; border: none; background: transparent; cursor: pointer; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: #1f2937; border-radius: 2px; transition: .25s; }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
body.nav-open { overflow: hidden; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 11px 22px; border-radius: 10px; font-weight: 600; font-size: 15px; cursor: pointer; border: none; transition: .2s; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { filter: brightness(1.06); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--primary); border: 1px solid var(--primary); }
.btn-ghost:hover { background: var(--primary-light); }
.btn-lg { padding: 14px 34px; font-size: 17px; }

/* ---------- Hero ---------- */
.hero { padding: 98px 0 98px; background: radial-gradient(1200px 500px at 70% -10%, #dbeafe 0%, transparent 60%), linear-gradient(180deg, #fff, var(--bg)); }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; }
.hero h1 { font-size: 38px; line-height: 1.25; font-weight: 800; letter-spacing: -0.5px; }
.hero h1 .hl { color: var(--primary); }
.hero p.sub { font-size: 18px; color: var(--muted); margin: 16px 0 26px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-badges { display: flex; gap: 22px; margin-top: 36px; flex-wrap: wrap; }
.hero-badges .b { font-size: 14px; color: var(--muted); }
.hero-badges .b b { display: block; font-size: 26px; color: var(--primary-dark); font-weight: 800; }
/* ---------- Section ---------- */
section.block { padding: 56px 0; }
section.block[data-section="mail"] { padding-top: 0; margin-top: -19px; }
.section-head { text-align: center; margin-bottom: 38px; }
.section-head .eyebrow { color: var(--primary); font-weight: 700; letter-spacing: 2px; font-size: 13px; }
.section-head h2 { font-size: 32px; font-weight: 800; margin: 8px 0 10px; }
.section-head p { color: var(--muted); font-size: 16px; }

.grid-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 22px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); transition: .25s; position: relative; }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.card .tag { position: absolute; top: 16px; right: 16px; background: var(--accent-red); color: #fff; font-size: 12px; padding: 3px 10px; border-radius: 20px; font-weight: 600; }
.card .tag.free { background: #16a34a; }
.card .tag.new { background: var(--primary); }
.card h3 { font-size: 20px; margin-bottom: 6px; }
.card .desc { color: var(--muted); font-size: 14px; margin-bottom: 14px; }
.card .card-img { width: 100%; height: 150px; object-fit: contain; background: #f8fafc; border: 1px solid var(--border); border-radius: 10px; margin-bottom: 12px; padding: 6px; }
.price { font-size: 30px; font-weight: 800; color: var(--primary-dark); }
.price .unit { font-size: 14px; font-weight: 500; color: var(--muted); }
.price .old { font-size: 14px; color: #9ca3af; text-decoration: line-through; margin-left: 8px; font-weight: 400; }
.features { list-style: none; margin: 14px 0 20px; }
.features li { padding: 5px 0 5px 24px; position: relative; font-size: 14px; color: #374151; }
.features li::before { content: "✓"; position: absolute; left: 0; color: #16a34a; font-weight: 700; }
.card .btn { width: 100%; }

/* ---------- 分类入口 ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.cat-card { background: #fff; border-radius: var(--radius); padding: 26px 18px; text-align: center; border: 1px solid var(--border); transition: .25s; box-shadow: var(--shadow); }
.cat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--primary); }
.cat-card .ico { width: 56px; height: 56px; margin: 0 auto 14px; border-radius: 14px; background: var(--primary-light); color: var(--primary); display: grid; place-items: center; font-size: 28px; }
.cat-card h4 { font-size: 17px; margin-bottom: 6px; }
.cat-card p { font-size: 13px; color: var(--muted); }

/* ---------- 特性条 ---------- */
.feature-strip { background: linear-gradient(135deg, var(--primary-dark), var(--primary)); color: #fff; padding: 44px 0; }
.feature-strip .grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.feature-strip .ico { font-size: 30px; margin-bottom: 8px; }
.feature-strip h4 { font-size: 18px; margin-bottom: 4px; }
.feature-strip p { font-size: 14px; opacity: .85; }

/* ---------- 横幅轮播 ---------- */
.banner { border-radius: 16px; padding: 34px 36px; color: #fff; margin-bottom: 14px; box-shadow: var(--shadow); }
.banner h3 { font-size: 24px; margin-bottom: 6px; }
.banner p { opacity: .92; margin-bottom: 14px; }

/* ---------- 页脚 ---------- */
#site-footer { background: linear-gradient(180deg, #142c5e, #0c1c40); color: #cbd5e1; margin-top: 40px; }
.footer-top { display: grid; grid-template-columns: 1.5fr 0.9fr 0.9fr 1.7fr; gap: 18px; padding: 52px 0 34px; }
.footer-top h4 { color: #fff; font-size: 16px; margin-bottom: 16px; position: relative; padding-bottom: 10px; }
.footer-top h4::after { content: ''; position: absolute; left: 0; bottom: 0; width: 26px; height: 3px; border-radius: 2px; background: #3b82f6; }
.footer-top a { display: block; color: #9db2d6; padding: 5px 0; font-size: 14px; transition: .2s; }
.footer-top a:hover { color: #fff; transform: translateX(3px); }
.footer-top .logo { color: #fff; margin-bottom: 12px; }
.footer-top .about { font-size: 14px; color: #9db2d6; line-height: 1.9; }
.footer-contact { display: flex; gap: 16px; align-items: flex-start; }
.footer-contact .fc-text { flex: 1; min-width: 0; }
.footer-qr { flex: 0 0 auto; text-align: center; }
.footer-qr img { display: block; width: 100px; height: 100px; border-radius: 8px; background: #fff; padding: 4px; }
.footer-qr span { display: block; margin-top: 6px; font-size: 12px; color: #9db2d6; }
.footer-bottom { border-top: 1px solid rgba(148, 163, 184, .18); padding: 18px 0; text-align: center; font-size: 13px; color: #7e93ba; }
.footer-bottom a { color: inherit; text-decoration: none; transition: color .2s; }
.footer-bottom a:hover { color: #fff; }
/* 导航 / 页脚「在线客服」入口高亮 */
.footer-top a.chat-link { display: inline-block; margin-top: 4px; padding: 5px 14px; border-radius: 999px; background: var(--accent); color: #fff; font-weight: 600; }
.footer-top a.chat-link:hover { color: #fff; opacity: .92; transform: none; }
.footer-qr .chat-link { margin-top: 12px; }

/* ---------- 页面头图 ---------- */
section.block.page-hero { position: relative; background: transparent; color: #fff; padding: 0; }
.page-hero h1 { font-size: 34px; font-weight: 800; margin-bottom: 8px; }
.page-hero p { opacity: .9; font-size: 16px; }
.page-hero .brand-hero .lead { color: #fff; opacity: 1; text-shadow: 0 1px 3px rgba(0,0,0,.18); }
.breadcrumb { font-size: 13px; opacity: .8; margin-bottom: 10px; }
.page-hero .ph-top { position: absolute; top: 0; left: 0; right: 0; z-index: 10; padding: 14px 0; }
.page-hero .ph-top .breadcrumb { color: rgba(255,255,255,.9); margin-bottom: 0; }
.page-hero .ad-carousel { height: 240px; padding-top: 0; }
.page-hero .ad-slide { align-items: center; }
.page-hero .ad-copy { padding: 0 clamp(60px, 8vw, 120px); max-width: 560px; }
.page-hero .ad-copy h3 { font-size: clamp(22px, 2.4vw, 30px); letter-spacing: .5px; margin-bottom: 8px; }
.page-hero .ad-copy p { font-size: 14px; margin-bottom: 18px; }
.page-hero .ad-btn { font-size: 13px; padding: 9px 28px; box-shadow: 0 4px 12px rgba(37,99,235,.4); }

/* ---------- 表单 ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 14px; font-weight: 600; color: #374151; }
.field input, .field select, .field textarea { padding: 11px 14px; border: 1px solid var(--border); border-radius: 10px; font-size: 15px; font-family: inherit; outline: none; transition: .2s; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.info-box { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); }
.info-box .row { display: flex; gap: 12px; padding: 10px 0; border-bottom: 1px dashed var(--border); }
.info-box .row:last-child { border: none; }
.info-box .ico { flex: 0 0 auto; width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; border-radius: 12px; background: linear-gradient(135deg, rgba(96,165,250,.14), rgba(37,99,235,.08)); color: var(--primary); font-size: 18px; }
.info-box .ico img { width: 24px; height: 24px; display: block; }
.info-box .row { align-items: center; gap: 14px; padding: 12px 0; }
.info-box a { color: var(--text); text-decoration: none; transition: color .2s; }
.info-box a:hover { color: var(--primary); text-decoration: underline; }

/* ---------- 联系我们页 · 服务支持（常见问题入口） ---------- */
.cs-faq-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.cs-faq-grid a {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 13px; border: 1px solid var(--border); border-radius: 999px;
  font-size: 14px; color: #374151; background: #f8fafc; text-decoration: none; transition: .2s;
}
.cs-faq-grid a:hover { color: var(--primary); border-color: var(--primary); background: var(--primary-light); text-decoration: none; }
.cs-faq-grid a b { color: var(--primary); font-weight: 600; }
.cs-faq-links { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 12px; }
.cs-faq-all { font-size: 14px; font-weight: 600; color: var(--primary); text-decoration: none; }
.cs-faq-all:hover { text-decoration: underline; }

/* ---------- 联系我们页 · 服务保障 ---------- */
.svc-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow); transition: .25s;
}
.svc-card:hover { transform: translateY(-3px); box-shadow: 0 16px 34px rgba(15,23,42,.1); }
.svc-card .sc-ico {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 12px;
  background: linear-gradient(135deg, rgba(96,165,250,.16), rgba(37,99,235,.08));
}
.svc-card .sc-ico img { width: 24px; height: 24px; }
.svc-card h3 { font-size: 17px; margin-bottom: 8px; }
.svc-card p { font-size: 14px; color: var(--muted); line-height: 1.7; margin: 0; }

/* ---------- 联系我们页 · 常见问题速查 ---------- */
.ct-faq-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.ct-faq-tabs button {
  padding: 9px 18px; border: 1px solid var(--border); background: #fff; border-radius: 999px;
  font-size: 14px; font-family: inherit; color: #374151; cursor: pointer; transition: .2s;
}
.ct-faq-tabs button:hover { border-color: var(--primary); color: var(--primary); }
.ct-faq-tabs button.active { background: var(--primary); border-color: var(--primary); color: #fff; font-weight: 600; }
.ct-faq-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.ct-faq-item {
  display: block; background: #fff; border: 1px solid var(--border); border-radius: 12px;
  padding: 18px 20px; box-shadow: var(--shadow); text-decoration: none; transition: .22s;
}
.ct-faq-item:hover { border-color: var(--primary); box-shadow: 0 12px 28px rgba(37,99,235,.12); text-decoration: none; }
.ct-faq-item .cq { display: block; font-weight: 600; font-size: 15.5px; color: var(--text); margin-bottom: 8px; line-height: 1.5; }
.ct-faq-item .ca { display: block; font-size: 14px; color: var(--muted); line-height: 1.7; }
.ct-faq-item .cm { display: inline-block; margin-top: 10px; font-size: 13.5px; font-weight: 600; color: var(--primary); }
.ct-faq-empty { grid-column: 1 / -1; text-align: center; color: var(--muted); padding: 30px 0; }

@media (max-width: 860px) {
  .ct-faq-list { grid-template-columns: 1fr; }
}

.footer-top .about a { color: inherit; text-decoration: none; }
.footer-top .about a:hover { color: #fff; text-decoration: underline; }
.toast { position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%) translateY(20px); background: #16a34a; color: #fff; padding: 13px 24px; border-radius: 10px; box-shadow: var(--shadow); opacity: 0; pointer-events: none; transition: .3s; z-index: 200; font-weight: 600; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-strip .grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .contact-wrap { grid-template-columns: 1fr; }
  /* 移动端：导航改为全屏抽屉式菜单，避免页面内容透显、架构混乱 */
  .nav-wrap { position: relative; }
  .nav-toggle { display: inline-flex; }
  .nav {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    flex-direction: column;
    align-items: stretch;
    background: #fff;
    padding: 8px 0 24px;
    gap: 0;
    overflow-y: auto;
    box-shadow: 0 14px 30px rgba(15,23,42,.14);
  }
  .nav.open { display: flex; }
  .nav a { padding: 16px 22px; border-radius: 0; border-bottom: 1px solid var(--border); font-size: 16px; }
  .nav a:last-child { border-bottom: none; }
  .nav a.active { background: var(--primary); color: #fff; font-weight: 600; box-shadow: inset 4px 0 0 var(--accent); }
  /* 移动端：下拉菜单降级为「展开式」列表，不依赖 hover
     注意：选择器需覆盖桌面端 .nav-item.open/.hover 的 0,3,0 特异性规则，故统一写成 .nav .nav-item ... */
  .nav .nav-item { display: block; }
  .nav .nav-item > a { justify-content: space-between; }
  .nav .nav-item > a .caret { transform: rotate(45deg); }
  .nav .nav-item.open > a .caret { transform: rotate(225deg); }
  .nav .nav-item::after { display: none; }
  .nav .nav-item .nav-dropdown,
  .nav .nav-item:hover .nav-dropdown,
  .nav .nav-item:focus-within .nav-dropdown,
  .nav .nav-item.open .nav-dropdown {
    position: static; left: auto; transform: none; min-width: 0; padding: 0;
    border: none; border-radius: 0; box-shadow: none; background: #f8fafc;
    display: none; opacity: 1; visibility: visible; pointer-events: auto;
  }
  .nav .nav-item.open .nav-dropdown { display: block; }
  .nav .nav-dropdown a { padding: 14px 22px 14px 40px; border-radius: 0; border-bottom: 1px solid var(--border); font-size: 15px; }
  .nav .nav-dropdown a.active { box-shadow: inset 4px 0 0 var(--accent); background: var(--primary-light); color: var(--primary); }
  .nav-cta .hotline { display: none; }
  .nav-cta .btn { padding: 9px 16px; font-size: 14px; }
}
@media (max-width: 560px) {
  .hero h1 { font-size: 28px; }
  .cat-grid, .feature-strip .grid, .form-grid { grid-template-columns: 1fr; }
  /* 移动端：banner 简化，隐藏右侧插图、减少上下间距 */
  .page-hero h1 { font-size: 24px; margin-bottom: 6px; }
  .page-hero p { font-size: 14px; }
  .page-hero .ph-top, .page-hero .breadcrumb { display: none; }
  .page-hero .ad-carousel { height: 50vw; min-height: 150px; background: #0b1440; }
  .page-hero .ad-slide { align-items: center; background-size: cover; background-position: left center; background-repeat: no-repeat; }
  .page-hero .ad-copy { padding: 0 18px; max-width: 90%; }
  .page-hero .ad-copy h3 { font-size: 16px; margin-bottom: 4px; letter-spacing: 0; max-width: 78%; display: inline-block; background: rgba(0,0,0,.45); padding: 2px 8px; border-radius: 4px; text-shadow: 0 2px 8px rgba(0,0,0,.75); }
  .page-hero .ad-copy p { font-size: 12px; margin-bottom: 9px; display: inline-block; background: rgba(0,0,0,.45); padding: 2px 8px; border-radius: 4px; text-shadow: 0 1px 6px rgba(0,0,0,.75); }
  .page-hero .ad-btn { font-size: 11px; padding: 5px 16px; }
  /* 移动端：邮箱品牌入口每行 3 个（在 <=480px 媒体查询中覆盖，避免被 480px 规则覆盖） */
  /* 移动端页脚简化：两列紧凑链接 + 品牌与联系信息整行，减少纵向冗余 */
  #site-footer { margin-top: 24px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 18px 14px; padding: 76px 0 20px; }
  .footer-top > div:first-child { grid-column: 1 / -1; text-align: center; }
  .footer-top > div:first-child .logo { justify-content: center; margin: 14px 0 10px; }
  .footer-top > div:first-child .about { display: none; }
  .footer-top .footer-contact { grid-column: 1 / -1; }
  .footer-top h4 { font-size: 15px; margin-bottom: 10px; padding-bottom: 7px; }
  .footer-top h4::after { width: 20px; height: 2px; }
  .footer-top a { padding: 3px 0; font-size: 13px; }
  .footer-contact .fc-text .about { font-size: 13px; line-height: 1.7; }
  .footer-contact { flex-wrap: nowrap; gap: 12px; align-items: center; }
  .footer-qr img { width: 72px; height: 72px; }
  .footer-qr span { font-size: 11px; }
  .footer-bottom { font-size: 12px; padding: 14px 0; }
  .topbar .container { font-size: 11px; }
}

/* ===== 图片图标与插画 ===== */
.cat-card .ico img, .feature-strip .ico img { width: 32px; height: 32px; display: block; }
.info-box .ico img { width: 24px; height: 24px; display: block; }
.hero-art { width: 100%; border-radius: 18px; margin-bottom: 16px; display: block; box-shadow: var(--shadow); }
.stats-ico img { width: 34px; height: 34px; display: block; margin: 0 auto 8px; }

/* ===== 栏目页 hero 轮播 ===== */
.page-hero .ad-carousel { width: 100%; }
.logo .mark { background: #fff !important; box-shadow: 0 2px 6px rgba(0,0,0,.18); }
.logo .mark img { width: 28px; height: 28px; display: block; }

/* ===== 新闻公告 ===== */
.news-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 20px; }
.news-card { display: flex; align-items: center; gap: 18px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); transition: .25s; color: inherit; text-decoration: none; }
.news-card:hover { transform: translateY(-3px); box-shadow: 0 12px 28px rgba(37,99,235,.12); border-color: #bfdbfe; }
.news-date { flex: 0 0 64px; text-align: center; background: linear-gradient(135deg,#2563eb,#1e40af); color: #fff; border-radius: 12px; padding: 10px 4px; line-height: 1.25; }
.news-date b { display: block; font-size: 22px; }
.news-date span { font-size: 12px; opacity: .85; }
.news-body { flex: 1; min-width: 0; }
.news-meta { display: flex; gap: 8px; align-items: center; margin-bottom: 6px; }
.news-cat { font-size: 12px; color: #2563eb; background: #eff6ff; border-radius: 999px; padding: 2px 10px; font-weight: 600; }
.news-pin { font-size: 12px; color: #d97706; background: #fffbeb; border-radius: 999px; padding: 2px 10px; font-weight: 600; }
.news-body h4 { font-size: 16px; margin-bottom: 6px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.news-body p { font-size: 13px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.news-arrow { color: #93c5fd; font-size: 20px; transition: .25s; }
.news-card:hover .news-arrow { color: #2563eb; transform: translateX(4px); }
#statsBox { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; text-align: center; }
#statsBox h4 { font-size: 26px; margin: 10px 0 4px; }
#statsBox p { color: rgba(255,255,255,.85); font-size: 14px; }
#statsBox .stats-ico { display: flex; justify-content: center; }
#bannerBox { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 20px; }
#bannerBox .banner { margin-bottom: 0; display: flex; flex-direction: column; align-items: flex-start; }

/* ===== 企业邮箱品牌入口 ===== */
.mail-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }
.mail-card { width: 174px; display: flex; flex-direction: column; align-items: center; gap: 12px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px 12px 20px; text-decoration: none; color: var(--text); box-shadow: var(--shadow); transition: .25s; }
.mail-card:hover { transform: translateY(-4px); box-shadow: 0 12px 26px rgba(37,99,235,.13); border-color: #bfdbfe; }
.mail-card .mi { width: 56px; height: 56px; display: flex; align-items: center; justify-content: center; }
.mail-card .mi img { width: 56px; height: 56px; display: block; object-fit: contain; }
.mail-card b { font-size: 14px; font-weight: 600; }

/* ===== 产品导购（West.cn 风格页签产品区） ===== */
.sc-block { padding-top: 10px; }
.sc-tabs { display: flex; justify-content: center; gap: 12px; margin-bottom: 24px; flex-wrap: wrap; }
.sc-tab { position: relative; padding: 13px 36px; background: #fff; border: 1px solid var(--border); border-radius: 8px; font-size: 16px; font-weight: 600; color: var(--text); cursor: pointer; transition: .2s; font-family: inherit; }
.sc-tab:hover { color: var(--primary); border-color: #93c5fd; }
.sc-tab.active { background: var(--primary); border-color: var(--primary); color: #fff; box-shadow: 0 6px 16px rgba(37,99,235,.28); }
.sc-tab.active::after { content: ''; position: absolute; left: 50%; bottom: -8px; transform: translateX(-50%); border: 8px solid transparent; border-top-color: var(--primary); border-bottom: 0; }
.sc-wrap { display: grid; grid-template-columns: 252px 1fr; gap: 18px; align-items: stretch; }
.sc-aside { position: relative; overflow: hidden; border-radius: var(--radius); padding: 36px 26px 64px; color: #fff; background: linear-gradient(160deg, #2f6fef, #1d4fc4 55%, #123a9e); box-shadow: var(--shadow); }
.sc-aside::after { content: ''; position: absolute; right: -46px; bottom: -46px; width: 150px; height: 150px; background: rgba(255,255,255,.10); transform: rotate(45deg); }
.sc-aside::before { content: ''; position: absolute; right: 18px; top: -30px; width: 90px; height: 90px; background: rgba(255,255,255,.07); border-radius: 50%; }
.sc-aside .badge { display: inline-block; border: 2px solid rgba(255,255,255,.85); padding: 7px 16px; font-weight: 800; letter-spacing: 2px; font-size: 13px; }
.sc-aside h3 { margin: 20px 0 14px; font-size: 26px; line-height: 1.35; font-weight: 800; }
.sc-aside p { font-size: 13.5px; line-height: 2; opacity: .92; }
.sc-aside .more { position: absolute; left: 0; bottom: 22px; background: #ffc53d; color: #7a4d00; font-weight: 800; font-size: 13px; line-height: 1.4; padding: 8px 22px 8px 18px; text-decoration: none; clip-path: polygon(0 0, 100% 0, calc(100% - 16px) 100%, 0 100%); box-shadow: 0 6px 14px rgba(0,0,0,.18); transition: .2s; }
.sc-aside .more:hover { padding-left: 26px; }
.sc-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.sc-card { position: relative; background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 28px 20px 20px; text-align: center; transition: .25s; display: flex; flex-direction: column; }
.sc-card:hover { transform: translateY(-5px); box-shadow: 0 14px 30px rgba(30,64,175,.13); border-color: #bfdbfe; }
.sc-card h3 { font-size: 18px; margin-bottom: 16px; }
.sc-ribbon { position: absolute; top: 0; right: 0; color: #fff; font-size: 12px; font-weight: 600; padding: 5px 14px; border-radius: 0 9px 0 12px; }
.sc-ribbon.hot { background: #f5222d; }
.sc-ribbon.fresh { background: #52c41a; }
.sc-price { position: relative; display: flex; justify-content: center; margin: 4px 0 8px; }
.sc-gift { position: absolute; right: 2px; top: 0; font-size: 11px; color: var(--primary); border: 1px solid #93c5fd; border-radius: 999px; padding: 2px 9px; background: #eff6ff; }
.sc-price .circle { width: 116px; height: 116px; border: 1px solid #e8ecf4; border-radius: 50%; display: flex; flex-direction: column; align-items: center; justify-content: center; background: #fff; }
.sc-price .circle b { font-size: 30px; color: var(--accent); line-height: 1.1; }
.sc-price .circle span { font-size: 12px; color: var(--muted); margin-top: 2px; }
.sc-promo { min-height: 20px; color: #f5222d; font-size: 12.5px; margin-bottom: 4px; }
.sc-specs { list-style: none; margin: 8px 0 6px; flex: 1; }
.sc-specs li { padding: 10px 0; border-bottom: 1px dashed #eef0f4; font-size: 13.5px; color: #4b5563; }
.sc-specs li:last-child { border-bottom: 0; }
.sc-more { display: block; color: var(--primary); font-size: 13px; margin: 4px 0 14px; text-decoration: none; }
.sc-more:hover { text-decoration: underline; }
.sc-actions { display: flex; gap: 10px; }
.sc-actions .btn { flex: 1; justify-content: center; text-align: center; }
.sc-empty { grid-column: 1 / -1; text-align: center; color: var(--muted); padding: 60px 0; background: #fff; border: 1px dashed var(--border); border-radius: var(--radius); }
@media (max-width: 960px) {
  .sc-wrap { grid-template-columns: 1fr; }
  .sc-aside { padding-bottom: 70px; }
  .sc-cards { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
  .sc-tab { padding: 11px 22px; font-size: 14px; }
}

/* ===== 首页广告横幅轮播（后台可增删改） ===== */
.block[data-section="banner"] { padding: 32px 0; }
.ad-carousel { position: relative; height: 300px; overflow: hidden; background: #0b1440; }
.ad-slide { position: absolute; top: 0; left: 0; width: 100%; height: 100%; display: flex; align-items: center; opacity: 0; visibility: hidden; transition: opacity .6s ease, visibility .6s; text-decoration: none; background-size: cover; background-position: center; }
.ad-slide.active { opacity: 1; visibility: visible; }
.ad-copy { padding: 0 clamp(76px, 9vw, 160px); max-width: 680px; }
.ad-copy h3 { color: #fff; font-size: clamp(28px, 3.2vw, 44px); font-weight: 700; letter-spacing: 1px; margin-bottom: 10px; text-shadow: 0 2px 10px rgba(10,30,80,.35); }
.ad-copy p { color: rgba(255,255,255,.85); font-size: clamp(14px, 1.2vw, 17px); margin-bottom: 26px; }
.ad-btn { display: inline-block; background: #2563eb; color: #fff; font-size: 15px; font-weight: 600; padding: 12px 40px; border-radius: 999px; box-shadow: 0 6px 16px rgba(37,99,235,.45); transition: .2s; }
.ad-slide:hover .ad-btn { background: #1d4ed8; transform: translateY(-1px); }
.ad-dots { position: absolute; left: 0; right: 0; bottom: 16px; display: flex; justify-content: center; gap: 8px; }
.ad-dot { width: 8px; height: 8px; border-radius: 999px; border: none; padding: 0; background: rgba(255,255,255,.45); cursor: pointer; transition: .25s; }
.ad-dot.active { width: 22px; background: #fff; }
@media (max-width: 860px) {
  .ad-carousel { height: 50vw; min-height: 150px; background: #0b1440; }
  .ad-slide { background-size: cover; background-position: left center; background-repeat: no-repeat; }
  .ad-copy { padding: 0 18px; max-width: 90%; }
  .ad-copy h3 { font-size: 16px; margin-bottom: 5px; max-width: 78%; display: inline-block; background: rgba(0,0,0,.45); padding: 2px 8px; border-radius: 4px; text-shadow: 0 2px 8px rgba(0,0,0,.75); }
  .ad-copy p { font-size: 12px; margin-bottom: 9px; display: inline-block; background: rgba(0,0,0,.45); padding: 2px 8px; border-radius: 4px; text-shadow: 0 1px 6px rgba(0,0,0,.75); }
  .ad-btn { font-size: 11px; padding: 5px 16px; display: block; width: fit-content; margin-top: 6px; }
}

/* ===== 首页新闻双栏（最新公告 / 最新资讯）——扁平标题 + 斜纹装饰线（同"常见问题"样式） ===== */
.news-panels { display: grid; grid-template-columns: 1.7fr 1fr; gap: 28px 56px; }
.news-panel { display: flex; flex-direction: column; min-width: 0; }
.np-head { position: relative; display: flex; justify-content: space-between; align-items: center; color: var(--text); font-size: 17px; font-weight: 600; letter-spacing: 1px; padding: 0 0 14px; }
.np-head::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 10px;
  background:
    linear-gradient(90deg, rgba(245,247,251,0) 0%, var(--bg) 94%) left top / 260px 9px no-repeat,
    repeating-linear-gradient(135deg, #d3ddee 0 2px, transparent 2px 7px) left top / 260px 9px no-repeat,
    linear-gradient(#e3e8f1, #e3e8f1) left bottom / 100% 1px no-repeat;
}
.np-list { list-style: none; padding: 6px 0 0; flex: 1; }
.np-list li a { display: flex; align-items: center; gap: 10px; padding: 11px 2px; text-decoration: none; color: var(--text); font-size: 14px; }
.np-list .dot { flex: 0 0 8px; width: 8px; height: 8px; background: #93c5fd; transition: .2s; }
.np-list .t { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; transition: .2s; }
.np-list .d { flex: 0 0 auto; color: var(--muted); font-size: 13px; }
.np-list li a:hover .t { color: var(--primary); }
.np-list li a:hover .dot { background: var(--primary); }
@media (max-width: 860px) { .news-panels { grid-template-columns: 1fr; } }
.np-list li.np-more a { color: var(--primary); font-weight: 600; }
.np-list li.np-more a:hover { color: var(--primary-dark); }
.np-head .np-more { font-size: 13px; font-weight: 400; color: var(--primary); text-decoration: none; letter-spacing: 0; }
.np-head .np-more:hover { color: var(--primary-dark); }
.np-count { display: inline-flex; align-items: center; justify-content: center; min-width: 20px; height: 18px; padding: 0 6px; margin-left: 8px; font-size: 11px; color: var(--muted); background: #f1f5f9; border-radius: 999px; }
.np-list li.active a { color: var(--primary); font-weight: 600; }
.np-list li.active a .np-count { background: #eff6ff; color: var(--primary); }

/* ===== 常见问题页（faq.html）===== */
.faq-wrap { max-width: 860px; margin: 0 auto; }
.faq-layout { display: grid; grid-template-columns: 1fr 300px; gap: 30px; padding: 30px 0 60px; align-items: start; }
.faq-layout.has-aside-left { grid-template-columns: 300px 1fr; }
.faq-aside { position: sticky; top: 20px; min-width: 0; }
.faq-main { min-width: 0; }
.faq-layout .faq-wrap { max-width: none; margin: 0; }
.faq-aside .np-head { margin-bottom: 8px; }
.faq-aside .np-list li a { padding: 9px 2px; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 12px; overflow: hidden; transition: box-shadow .2s, border-color .2s; }
.faq-item[open] { border-color: var(--primary); box-shadow: 0 6px 22px rgba(31,64,175,.10); }
.faq-item summary { list-style: none; cursor: pointer; display: flex; align-items: center; gap: 12px; padding: 16px 18px; font-size: 16px; font-weight: 600; color: var(--text); user-select: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-q { flex: 1; min-width: 0; }
.faq-toggle { flex: 0 0 22px; width: 22px; height: 22px; border-radius: 50%; background: var(--bg); color: var(--primary); display: inline-flex; align-items: center; justify-content: center; font-size: 18px; font-weight: 700; transition: .2s; }
.faq-item[open] .faq-toggle { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-a { padding: 0 18px 18px; color: var(--muted); font-size: 14.5px; line-height: 1.8; }
.faq-a p { margin: 0 0 8px; }
.faq-a p:last-child { margin-bottom: 0; }

/* ===== 栏目页常见问题模块（footer 上方，按分类展示）===== */
.faq-section { background: linear-gradient(180deg, #fff 0%, var(--bg) 100%); border-top: 1px solid var(--border); }
/* 加宽：栏目页常见问题内容框铺满容器，与栏目标题/产品区宽度协调 */
.faq-section .faq-wrap { max-width: none; margin: 0; }
.faq-more { text-align: center; margin-top: 22px; }
.faq-more .btn { display: inline-block; }

/* ===== 新闻详情页（news-detail.html）===== */
.nd-wrap { max-width: 880px; padding: 40px 20px 64px; }
.nd-crumb { font-size: 13px; color: var(--muted); margin-bottom: 20px; }
.nd-crumb a { color: var(--muted); }
.nd-crumb a:hover { color: var(--primary); }
.nd-crumb .sep { margin: 0 8px; color: var(--border); }
.nd-article { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 34px 38px; }
.nd-meta { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--muted); margin-bottom: 14px; }
.nd-meta .nd-date { color: var(--muted); }
.nd-title { font-size: 27px; line-height: 1.4; margin: 0 0 22px; color: var(--text); }
.nd-cover { margin: 0 0 22px; border-radius: 12px; overflow: hidden; }
.nd-cover img { width: 100%; display: block; }
.nd-content { font-size: 15.5px; line-height: 1.95; color: #334155; word-break: break-word; }
.nd-content p { margin: 0 0 16px; }
.nd-content img { max-width: 100%; height: auto; border-radius: 8px; display: block; margin: 16px 0; }
.nd-content video { max-width: 100%; border-radius: 8px; display: block; margin: 16px 0; }
.nd-content a { color: var(--primary); text-decoration: underline; }
.nd-content h2, .nd-content h3, .nd-content h4 { margin: 24px 0 12px; line-height: 1.4; color: var(--text); }
.nd-content h2 { font-size: 21px; } .nd-content h3 { font-size: 18px; } .nd-content h4 { font-size: 16px; }
.nd-content ul, .nd-content ol { margin: 0 0 16px; padding-left: 24px; }
.nd-content li { margin: 6px 0; }
.nd-content blockquote { margin: 0 0 16px; padding: 12px 16px; background: #f8fafc; border-left: 4px solid var(--primary); color: #475569; border-radius: 6px; }
.nd-content blockquote p { margin: 0; }
.nd-content pre { background: #1e293b; color: #e2e8f0; padding: 14px 16px; border-radius: 8px; overflow: auto; font-size: 13.5px; }
.nd-content code { background: #f1f5f9; color: #db2777; padding: 2px 6px; border-radius: 4px; font-size: 13.5px; }
.nd-content pre code { background: none; color: inherit; padding: 0; }
.nd-content table { width: 100%; border-collapse: collapse; margin: 0 0 16px; font-size: 14px; }
.nd-content th, .nd-content td { border: 1px solid var(--border); padding: 9px 12px; text-align: left; }
.nd-content th { background: #f8fafc; font-weight: 600; }
.nd-foot { margin-top: 28px; padding-top: 18px; border-top: 1px dashed var(--border); font-size: 13px; color: var(--muted); }
.nd-pager { display: flex; justify-content: space-between; gap: 16px; margin-top: 26px; }
.nd-pager > div { flex: 1; font-size: 14px; min-width: 0; }
.nd-pager .lbl { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.nd-pager a { color: var(--text); line-height: 1.5; display: inline-block; word-break: break-all; }
.nd-pager a:hover { color: var(--primary); }
.nd-pager .nd-next { text-align: right; }
.nd-back { text-align: center; margin-top: 30px; }
.nd-empty { text-align: center; padding: 60px 20px; }
.nd-empty h2 { font-size: 22px; margin-bottom: 12px; }
.nd-empty p { color: var(--muted); margin-bottom: 20px; }

/* 相关资讯 / 相关常见问题：内链模块，用于主题簇聚合权重 */
.nd-related { margin-top: 28px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px 26px; }
.nd-related h2 { font-size: 17px; margin: 0 0 14px; color: var(--text); }
.nd-related .np-list li { display: flex; align-items: baseline; justify-content: space-between; gap: 14px; padding: 9px 0; border-bottom: 1px dashed var(--border); }
.nd-related .np-list li:last-child { border-bottom: 0; }
.nd-related .np-list a { color: var(--text); font-size: 14.5px; line-height: 1.6; }
.nd-related .np-list a:hover { color: var(--primary); }

/* FAQ 总览页每条问答的独立页入口 */
.faq-permalink { margin: 10px 0 0 !important; font-size: 13px; }
.faq-permalink a { color: var(--primary); text-decoration: none; }
.faq-permalink a:hover { text-decoration: underline; }

@media (max-width: 600px) {
  .nd-article { padding: 22px 18px; }
  .nd-title { font-size: 21px; }
  .nd-pager { flex-direction: column; }
  .nd-pager .nd-next { text-align: left; }
  .nd-related { padding: 18px; }
  .nd-related .np-list li { flex-direction: column; gap: 4px; }
}

/* ===== 新闻列表页与详情页两栏布局 ===== */
.news-layout { display: grid; grid-template-columns: 1fr 300px; gap: 30px; padding: 30px 0 60px; align-items: start; }
.news-layout.has-aside-left { grid-template-columns: 300px 1fr; }
.news-main { min-width: 0; }
.news-aside { position: sticky; top: 20px; min-width: 0; }
.news-aside .np-head { margin-bottom: 8px; }
.news-aside .np-list li a { padding: 9px 2px; }
.page-crumb { font-size: 13px; color: var(--muted); padding: 24px 0 10px; }
.page-crumb a { color: var(--muted); }
.page-crumb a:hover { color: var(--primary); }
.page-crumb .sep { margin: 0 8px; color: var(--border); }
.page-title { font-size: 24px; font-weight: 700; margin: 0 0 22px; color: var(--text); }

.nl-list { display: flex; flex-direction: column; gap: 12px; }
.nl-item { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 18px 20px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); text-decoration: none; color: var(--text); transition: .2s; }
.nl-item:hover { border-color: #e5e7eb; background: #fafafa; }
.nl-item .nl-main { flex: 1; min-width: 0; }
.nl-item .nl-meta { display: flex; align-items: center; gap: 8px; font-size: 12px; margin-bottom: 8px; }
.nl-item h4 { font-size: 16px; font-weight: 600; margin: 0 0 6px; line-height: 1.5; color: #111827; transition: .2s; }
.nl-item:hover h4 { color: var(--primary); }
.nl-item p { font-size: 13px; color: #6b7280; margin: 0; line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
.nl-item .nl-right { flex: 0 0 auto; text-align: right; }
.nl-item .nl-date-text { display: inline-block; font-size: 13px; color: #9ca3af; font-family: var(--font); letter-spacing: .02em; }
.nl-empty { text-align: center; padding: 48px 20px; color: var(--muted); background: #fff; border: 1px dashed var(--border); border-radius: var(--radius); }
.nl-pager { display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 28px; flex-wrap: wrap; }
.np-page { display: inline-flex; align-items: center; justify-content: center; min-width: 36px; height: 36px; padding: 0 12px; font-size: 14px; color: #374151; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); text-decoration: none; transition: .2s; }
.np-page:hover { border-color: var(--primary); color: var(--primary); }
.np-page.active { color: #fff; background: var(--primary); border-color: var(--primary); font-weight: 600; }
.np-page.prev, .np-page.next { padding: 0 14px; }

@media (max-width: 900px) {
  .news-layout { grid-template-columns: 1fr; padding: 20px 0 40px; }
  .news-layout.has-aside-left { grid-template-columns: 1fr; }
  .news-aside { position: static; }
  .faq-layout { grid-template-columns: 1fr; padding: 20px 0 40px; }
  .faq-layout.has-aside-left { grid-template-columns: 1fr; }
  .faq-aside { position: static; }
  .news-panels { grid-template-columns: 1fr; gap: 36px; }
  .nl-item { padding: 14px 16px; }
  .nl-item p { -webkit-line-clamp: 2; }
}

/* ===== 手机版优化（桌面端不受影响）===== */
@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .topbar .container { height: 34px; }
  .topbar a.light { font-size: 11px; }
  .nav-wrap { height: 60px; }
  .logo { font-size: 19px; gap: 8px; }
  .logo .mark { width: 34px; height: 34px; font-size: 18px; }
  .logo small { font-size: 10px; }
  .nav-cta .btn { padding: 8px 14px; font-size: 13px; }
  .hero { padding: 44px 0 44px; }
  .hero h1 { font-size: 26px; }
  .hero p.sub { font-size: 15px; margin: 14px 0 22px; }
  .hero-badges { gap: 16px; }
  .hero-badges .b { font-size: 12px; }
  .hero-badges .b b { font-size: 22px; }
  section.block { padding: 40px 0; }
  .section-head { margin-bottom: 26px; }
  .section-head h2 { font-size: 24px; }
  .section-head p { font-size: 14px; }
  .cat-card { padding: 20px 12px; }
  .cat-card .ico { width: 46px; height: 46px; font-size: 24px; margin-bottom: 10px; }
  .feature-strip { padding: 32px 0; }
  .feature-strip .grid { gap: 20px; }
  .card { padding: 20px; }
  .page-hero h1 { font-size: 26px; }
  .page-hero p { font-size: 14px; }
  .page-hero .ad-carousel { height: 50vw; min-height: 170px; background: #0b1440; }
  .page-hero .ad-slide { background-size: cover; background-position: left center; background-repeat: no-repeat; }
  .page-hero .ad-copy { padding: 0 44px; padding: 0 clamp(44px, 6vw, 90px); max-width: 90%; }
  .page-hero .ad-copy h3 { font-size: 18px; font-size: clamp(18px, 2.2vw, 22px); margin-bottom: 6px; max-width: 78%; display: inline-block; background: rgba(0,0,0,.45); padding: 2px 8px; border-radius: 4px; text-shadow: 0 2px 8px rgba(0,0,0,.75); }
  .page-hero .ad-copy p { font-size: 13px; margin-bottom: 12px; display: inline-block; background: rgba(0,0,0,.45); padding: 2px 8px; border-radius: 4px; text-shadow: 0 1px 6px rgba(0,0,0,.75); }
  .page-hero .ad-btn { font-size: 12px; padding: 7px 20px; }
  .faq-item summary { padding: 14px 14px; font-size: 15px; }
  .faq-a { padding: 0 14px 14px; }
  .nd-wrap { padding: 28px 16px 44px; }
  .nd-article { padding: 20px 16px; }
  .nl-item { padding: 14px 14px; }
  /* 详情页富文本表格在窄屏可横向滚动，避免撑破页面 */
  .nd-content { overflow-x: auto; }
  .nl-pager { gap: 6px; }
}
@media (max-width: 480px) {
  .hero h1 { font-size: 22px; }
  .section-head h2 { font-size: 22px; }
  .cat-card .ico { width: 42px; height: 42px; font-size: 22px; }
  .grid-cards { gap: 14px; }
  .mail-grid { gap: 8px; }
  .mail-card { flex: 0 0 calc((100% - 16px) / 3); padding: 14px 4px 10px; gap: 6px; box-sizing: border-box; }
  .mail-card .mi { width: 36px; height: 36px; }
  .mail-card .mi img { width: 36px; height: 36px; }
  .mail-card b { font-size: 11px; }
  .card { padding: 16px; }
  .news-card { padding: 16px; gap: 14px; }
  .news-date { flex: 0 0 54px; }
  .nl-item h4 { font-size: 15px; }
}

/* ===== 企业邮箱品牌详情页（腾讯/网易/阿里/263/35/新网） ===== */
/* 邮箱详情页 banner：简洁单栏，不显示 logo，弱化右侧插图 */
.page-hero.brand-hero { display: block; padding: 36px 0 50px; background: linear-gradient(135deg, var(--primary-dark), var(--primary)); color: #fff; }
.brand-hero .container { max-width: 900px; }
.brand-hero .bh-info { display: flex; flex-direction: column; gap: 14px; }
.brand-hero .bh-logo { display: none; }
.brand-hero h1 { font-size: 30px; margin: 0; }
.brand-hero .lead { font-size: 16px; color: #fff; line-height: 1.75; max-width: 720px; opacity: 1; text-shadow: 0 1px 3px rgba(0,0,0,.18); }
.brand-hero .bh-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.brand-hero .bh-tags span { padding: 5px 12px; border-radius: 999px; background: rgba(255,255,255,.18); color: #fff; font-size: 13px; font-weight: 600; }
.brand-hero .btn-primary { background: #fff; color: var(--primary); border: 1px solid #fff; }
.brand-hero .btn-primary:hover { background: rgba(255,255,255,.9); color: var(--primary-dark); }
.brand-hero .bh-media { display: none; }

.pricing-section { background: var(--bg); }
.pricing-grid { display: grid; gap: 24px; }
.pricing-grid.col-2 { grid-template-columns: repeat(2, 1fr); }
.pricing-grid.col-3 { grid-template-columns: repeat(3, 1fr); }
.pricing-grid.col-4 { grid-template-columns: repeat(4, 1fr); }
.pricing-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: transform .2s, box-shadow .2s; display: flex; flex-direction: column; }
.pricing-card:hover { transform: translateY(-4px); box-shadow: 0 18px 46px rgba(31,64,175,.12); }
.pricing-card .pc-head { padding: 24px 24px 20px; color: #fff; background: linear-gradient(135deg, #1f40af 0%, #3b82f6 100%); }
.pricing-card.recommend .pc-head { background: linear-gradient(135deg, #ef4444 0%, #f97316 100%); }
.pricing-card .pc-head h3 { margin: 0 0 8px; font-size: 20px; }
.pricing-card .pc-head p { margin: 0; opacity: .9; font-size: 14px; line-height: 1.5; }
.pricing-card .pc-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.pricing-card .pc-price { font-size: 36px; font-weight: 800; color: var(--text); margin-bottom: 4px; }
.pricing-card .pc-price small { font-size: 15px; font-weight: 500; color: var(--muted); }
.pricing-card .pc-price .origin { font-size: 14px; color: #94a3b8; text-decoration: line-through; margin-left: 6px; font-weight: 400; }
.pricing-card .pc-unit { color: var(--muted); font-size: 13px; margin-bottom: 18px; }
.pricing-card .pc-features { list-style: none; margin: 0 0 24px; padding: 0; flex: 1; }
.pricing-card .pc-features li { display: flex; align-items: flex-start; gap: 8px; padding: 7px 0; font-size: 14px; color: #475569; border-bottom: 1px dashed #f1f5f9; }
.pricing-card .pc-features li:last-child { border-bottom: none; }
.pricing-card .pc-features li::before { content: "✓"; color: var(--primary); font-weight: 700; flex: 0 0 auto; }
.pricing-card .btn { width: 100%; justify-content: center; }

.feature-grid { display: grid; gap: 24px; }
.feature-grid.col-3 { grid-template-columns: repeat(3, 1fr); }
.feature-grid.col-4 { grid-template-columns: repeat(4, 1fr); }
.feature-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; transition: .2s; }
.feature-card:hover { box-shadow: 0 12px 32px rgba(31,64,175,.08); border-color: #e2e8f0; }
.feature-card .fc-icon { width: 48px; height: 48px; border-radius: 12px; background: #eff6ff; color: var(--primary); display: inline-flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 14px; }
.feature-card h4 { margin: 0 0 8px; font-size: 17px; color: var(--text); }
.feature-card p { margin: 0; font-size: 14px; color: var(--muted); line-height: 1.7; }

.calc-box { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.calc-box h4 { margin: 0 0 20px; font-size: 18px; }
.calc-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.calc-row .label { color: var(--muted); font-size: 14px; }
.calc-row .value { font-size: 17px; font-weight: 700; color: var(--text); }
.calc-row .value.primary { color: var(--primary); }
.calc-row.total { border-top: 1px dashed var(--border); padding-top: 16px; margin-top: 8px; }
.calc-row .hint { color: #94a3b8; font-size: 13px; }

.brand-cta { background: linear-gradient(135deg, #1f40af 0%, #3b82f6 100%); color: #fff; }
.brand-cta h2 { color: #fff; }
.brand-cta p { color: rgba(255,255,255,.9); }
.brand-cta .btn-primary { background: #fff; color: var(--primary); }

@media (max-width: 980px) {
  .brand-hero { padding: 32px 0 42px; }
  .pricing-grid.col-2, .pricing-grid.col-3, .pricing-grid.col-4 { grid-template-columns: 1fr; }
  .feature-grid.col-3, .feature-grid.col-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .brand-hero { padding: 28px 0 36px; }
  .brand-hero h1 { font-size: 24px; }
  .brand-hero .lead { font-size: 15px; }
  .brand-hero .bh-tags span { font-size: 12px; padding: 4px 10px; }
  .feature-grid.col-3, .feature-grid.col-4 { grid-template-columns: 1fr; }
  .pricing-card .pc-price { font-size: 30px; }
}