:root {
    --c-primary: #2563eb;
    --c-primary-d: #1d4ed8;
    --c-accent: #0ea5e9;
    --c-dark: #0f172a;
    --c-text: #1f2937;
    --c-muted: #64748b;
    --c-bg: #ffffff;
    --c-bg-soft: #f8fafc;
    --c-border: #e5e7eb;
    --radius: 14px;
    --shadow: 0 10px 30px rgba(15, 23, 42, .08);
    --maxw: 1180px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--c-text);
    background: var(--c-bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ===== 顶部导航 ===== */
.site-header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(255, 255, 255, .9);
    backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--c-border);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; position: relative; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-logo { height: 40px; width: auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-size: 18px; color: var(--c-dark); }
.brand-text em { font-style: normal; font-size: 11px; letter-spacing: 2px; color: var(--c-muted); }
.site-nav { display: flex; align-items: center; gap: 26px; }
.site-nav a { color: var(--c-text); font-size: 15px; font-weight: 500; transition: color .2s; }
.site-nav a:hover, .site-nav a.active { color: var(--c-primary); }
.nav-toggle { display: none; background: none; border: 0; font-size: 24px; cursor: pointer; color: var(--c-dark); }

/* ===== 按钮 ===== */
.btn {
    display: inline-block; padding: 12px 26px; border-radius: 999px;
    font-weight: 600; font-size: 15px; cursor: pointer; border: 1px solid transparent;
    transition: transform .15s, box-shadow .2s, background .2s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--c-primary); color: #fff; box-shadow: 0 8px 20px rgba(37, 99, 235, .3); }
.btn-ghost { background: #fff; color: var(--c-primary); border-color: var(--c-primary); }
.btn-nav { padding: 9px 20px; background: var(--c-primary); color: #fff !important; }
.btn-dark { background: var(--c-dark); color: #fff; }

/* ===== Hero（蓝色渐变两栏：左文字+CTA，右实时签到看板 mock） ===== */
.hero {
    position: relative;
    background: linear-gradient(135deg, #0b3a73 0%, #0066cc 55%, #1a8cff 100%);
    color: #fff;
    padding: 64px 0 80px;
    overflow: hidden;
}
.hero::before {
    content: "";
    position: absolute; inset: 0;
    background: radial-gradient(900px 420px at 85% -15%, rgba(255,255,255,.20), transparent 60%);
    pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero-inner { display: flex; align-items: center; justify-content: space-between; gap: 48px; }
.hero-left { flex: 1 1 600px; max-width: 640px; display: flex; flex-direction: column; gap: 24px; }
.hero-right { flex: 0 0 520px; max-width: 520px; }
.hero-eyebrow { color: #8ec5ff; font-size: 15px; font-weight: 500; margin: 0; letter-spacing: 0.2px; }
.hero h1 { font-size: clamp(32px, 5vw, 52px); margin: 0; line-height: 1.15; font-weight: 800; color: #ffffff; }
.hero p.lead { font-size: clamp(16px, 1.6vw, 18px); color: #d4e4ff; margin: 0; line-height: 1.55; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 8px; }
.hero .btn-primary { background: #ffffff; color: #0066cc; box-shadow: 0 8px 20px rgba(0,0,0,.18); }
.hero .btn-primary:hover { background: #eaf2ff; }
.hero .btn-ghost { color: #ffffff; border-color: rgba(255,255,255,.7); background: transparent; }
.hero .btn-ghost:hover { background: rgba(255,255,255,.14); border-color: #fff; }

/* Hero 右侧：实时签到看板 mock（1,286/92%/312 + 柱图，纯装饰） */
.hero-mock {
    background: transparent;
    padding: 24px;
    display: flex; align-items: center; justify-content: center;
    min-height: 420px;
}
.hero-dash {
    width: 100%; max-width: 460px;
    background: #ffffff; border: 1px solid #e5e7eb; border-radius: 14px;
    padding: 22px; display: flex; flex-direction: column; gap: 16px;
    box-shadow: 0 4px 18px rgba(15,23,42,.04);
}
.hero-dash-head { display: flex; align-items: center; justify-content: space-between; }
.hero-dash-title { font-size: 16px; font-weight: 700; color: #1d1d1f; }
.hero-dash-live { background: #e8f5e9; color: #1a7f37; border-radius: 999px; padding: 4px 10px; font-size: 11px; font-weight: 700; letter-spacing: 0.5px; }
.hero-dash-stats { display: flex; gap: 12px; }
.hero-dash-stat { flex: 1; background: #f5f5f7; border-radius: 10px; padding: 14px; display: flex; flex-direction: column; gap: 4px; }
.hero-dash-stat .num { font-size: 24px; font-weight: 800; color: #1d1d1f; line-height: 1.1; }
.hero-dash-stat.is-brand .num { color: #0066cc; }
.hero-dash-stat .lbl { font-size: 12px; color: #6e6e73; }
.hero-dash-chart { background: #f5f5f7; border-radius: 10px; height: 130px; padding: 16px; display: flex; align-items: flex-end; justify-content: space-between; gap: 14px; }
.hero-dash-bar { width: 36px; border-radius: 6px; background: #0066cc; }
.hero-dash-bar.is-light { background: #2997ff; }
.hero-dash-bar.bar-1 { height: 48px; }
.hero-dash-bar.bar-2 { height: 84px; }
.hero-dash-bar.bar-3 { height: 62px; }
.hero-dash-bar.bar-4 { height: 98px; }
.hero-dash-bar.bar-5 { height: 40px; }

/* Hero 响应式：≤1024px 折叠为单列 */
@media (max-width: 1024px) {
    .hero-inner { flex-direction: column; align-items: stretch; gap: 40px; }
    .hero-left, .hero-right { flex: 1 1 auto; max-width: 100%; }
    .hero-mock { min-height: auto; padding: 18px; }
}
@media (max-width: 640px) {
    .hero { padding: 48px 0 56px; }
    .hero-dash-chart { height: 110px; padding: 12px; gap: 10px; }
    .hero-dash-bar { width: 30px; }
}

/* ===== 通用区块 ===== */
section { padding: 76px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.section-head .eyebrow { color: var(--c-primary); font-weight: 700; letter-spacing: 2px; font-size: 13px; text-transform: uppercase; }
.section-head h2 { font-size: clamp(26px, 3.4vw, 38px); margin: 10px 0 12px; color: var(--c-dark); }
.section-head p { color: var(--c-muted); font-size: 16px; margin: 0; }
.bg-soft { background: var(--c-bg-soft); }

/* ===== 数据条 ===== */
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.metric { background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius); padding: 26px; text-align: center; }
.metric .num { font-size: 34px; font-weight: 800; color: var(--c-primary); }
.metric .lbl { color: var(--c-muted); margin-top: 6px; }

/* ===== 卡片网格 ===== */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card {
    background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius);
    padding: 28px; transition: transform .2s, box-shadow .2s, border-color .2s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: #c7d2fe; }
.card .icon { font-size: 30px; width: 56px; height: 56px; display: grid; place-items: center;
    background: linear-gradient(135deg, #eff6ff, #dbeafe); border-radius: 14px; margin-bottom: 16px; }
.card h3 { margin: 0 0 10px; font-size: 19px; color: var(--c-dark); }
.card p { color: var(--c-muted); margin: 0; font-size: 15px; }
.card .more { display: inline-block; margin-top: 16px; color: var(--c-primary); font-weight: 600; }

/* ===== 案例 / 新闻列表 ===== */
.post { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--c-border);
    border-radius: var(--radius); overflow: hidden; transition: transform .2s, box-shadow .2s; }
.post:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.post .thumb { aspect-ratio: 16/9; background: linear-gradient(135deg, #1e3a8a, #0ea5e9); display: grid; place-items: center; color: #fff; font-size: 22px; font-weight: 700; }
.post .thumb img { width: 100%; height: 100%; object-fit: cover; }
.post .body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.post .tag { font-size: 12px; color: var(--c-primary); font-weight: 700; }
.post h3 { margin: 8px 0; font-size: 18px; color: var(--c-dark); }
.post p { color: var(--c-muted); font-size: 14px; margin: 0 0 14px; flex: 1; }
.post .meta { font-size: 13px; color: var(--c-muted); }

/* ===== 新闻列表（无缩略图 · 横向行布局，独立于案例 .post） ===== */
.news-list { display: flex; flex-direction: column; gap: 16px; }
.news-item { display: flex; align-items: stretch; gap: 22px; background: #fff; border: 1px solid var(--c-border); border-radius: 12px; padding: 22px 24px; text-decoration: none; transition: transform .2s, box-shadow .2s, border-color .2s; }
.news-item:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: #0066cc; }
.news-item .post-date { flex: 0 0 78px; display: flex; flex-direction: column; justify-content: center; padding-right: 22px; border-right: 1px solid var(--c-border); }
.news-item .post-date .d { font-size: 30px; font-weight: 800; color: var(--c-dark); line-height: 1; }
.news-item .post-date .m { font-size: 13px; color: var(--c-muted); margin-top: 6px; letter-spacing: .3px; }
.news-item .body { flex: 1; display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.news-item .body h3 { margin: 0; font-size: 19px; color: var(--c-dark); line-height: 1.4; transition: color .2s; }
.news-item:hover .body h3 { color: #0066cc; }
.news-item .body p { color: var(--c-muted); font-size: 14px; margin: 0; line-height: 1.65; }
.news-item .body .meta { font-size: 13px; color: #0066cc; font-weight: 600; }

/* 新闻列表分页 */
.pagination { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 8px; margin-top: 32px; }
.pagination .pg { min-width: 38px; height: 38px; padding: 0 12px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--c-border); border-radius: 8px; text-decoration: none; color: var(--c-dark); font-size: 14px; transition: all .2s; }
.pagination .pg:hover { border-color: #0066cc; color: #0066cc; }
.pagination .pg.current { background: #0066cc; border-color: #0066cc; color: #fff; font-weight: 600; cursor: default; }
.pagination .pg.disabled { color: var(--c-muted); opacity: .5; cursor: default; }
.pagination .pg.prev, .pagination .pg.next { font-weight: 600; }
@media (max-width: 640px) {
    .news-item { flex-direction: column; gap: 12px; padding: 18px; }
    .news-item .post-date { flex: none; flex-direction: row; align-items: baseline; gap: 8px; padding-right: 0; border-right: 0; border-bottom: 1px solid var(--c-border); padding-bottom: 10px; }
    .news-item .post-date .m { margin-top: 0; }
}

/* ===== CTA ===== */
.cta { background: linear-gradient(135deg, #1e3a8a, #2563eb); color: #fff; border-radius: 20px; padding: 54px; text-align: center; }
.cta h2 { margin: 0 0 12px; font-size: clamp(24px, 3vw, 34px); }
.cta p { color: #dbeafe; margin: 0 0 26px; }

/* ===== 联系表单 ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.info-card { background: var(--c-bg-soft); border: 1px solid var(--c-border); border-radius: var(--radius); padding: 28px; }
.info-card .row { display: flex; gap: 12px; margin-bottom: 18px; }
.info-card .row .k { color: var(--c-primary); font-weight: 700; min-width: 64px; }
.form-field { margin-bottom: 16px; }
.form-field label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; color: var(--c-dark); }
.form-field input, .form-field textarea, .form-field select {
    width: 100%; padding: 12px 14px; border: 1px solid var(--c-border); border-radius: 10px;
    font-size: 15px; font-family: inherit; background: #fff; color: var(--c-text);
}
.form-field input:focus, .form-field textarea:focus { outline: none; border-color: var(--c-primary); box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.form-field textarea { min-height: 130px; resize: vertical; }

/* ===== 详情页 ===== */
.page-hero { background: linear-gradient(135deg, #0f172a, #1e3a8a); color: #fff; padding: 64px 0; }
.page-hero h1 { margin: 0; font-size: clamp(26px, 3.4vw, 40px); }
.page-hero p { color: #cbd5e1; margin: 10px 0 0; }
.article { max-width: 820px; margin: 0 auto; }
.article img { border-radius: var(--radius); margin: 20px 0; }
.article p, .article li { font-size: 16px; color: #374151; }
.article h2, .article h3 { color: var(--c-dark); margin-top: 32px; }
.breadcrumb { font-size: 14px; color: #cbd5e1; margin-bottom: 8px; }
.breadcrumb a { color: #93c5fd; }

.notice { padding: 14px 18px; border-radius: 10px; margin-bottom: 18px; font-size: 15px; }
.notice-ok { background: #ecfdf5; color: #047857; border: 1px solid #a7f3d0; }
.notice-err { background: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; }

/* ===== 页脚 ===== */
.site-footer { background: var(--c-bg-soft); color: var(--c-text); padding: 56px 0 26px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 2fr 1fr; gap: 36px; }
.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.footer-brand img { height: 36px; }
.footer-brand strong { color: var(--c-dark); font-size: 18px; }
.footer-desc { color: var(--c-muted); font-size: 14px; max-width: 360px; }
.footer-intro { color: #4a4a4f; font-size: 13px; line-height: 1.75; max-width: 380px; margin-top: 10px; }
.footer-intro strong { color: #0066cc; font-weight: 600; }
.footer-col h4 { color: var(--c-dark); margin: 0 0 18px; font-size: 15px; font-weight: 700; letter-spacing: 0.3px; }
.footer-col a, .footer-col p { display: block; color: var(--c-muted); font-size: 14px; margin: 0 0 8px; }
/* 联系方式行（邮箱、电话）标签与值不换行 */
.footer-col:last-child p { white-space: nowrap; }
.footer-col a:hover { color: var(--c-primary); }
.footer-bottom { border-top: 1px solid var(--c-border); margin-top: 32px; padding-top: 18px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; font-size: 13px; color: #9a9a9a; }

/* 快速导航分组（业务 / 资源 / 公司） */
.footer-nav-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.footer-nav-group-title { color: var(--c-dark); font-size: 12px; font-weight: 700; letter-spacing: 1px; margin-bottom: 12px; text-transform: uppercase; }
.footer-nav-group a { display: block; color: var(--c-muted); font-size: 14px; margin: 0 0 7px; }
.footer-nav-group a:hover { color: var(--c-primary); }

@media (max-width: 768px) {
    .footer-nav-grid { grid-template-columns: 1fr; gap: 16px; }
}

/* ===== 浮动按钮：返回顶部 + 在线咨询 ===== */
.float-actions {
    position: fixed; right: 22px; bottom: 22px; z-index: 9999;
    display: flex; flex-direction: column; gap: 12px;
    align-items: flex-end;
}
.float-btn {
    display: flex; align-items: center; justify-content: center; gap: 8px;
    width: 52px; height: 52px; border-radius: 999px;
    background: var(--c-primary); color: #fff;
    border: none; cursor: pointer; text-decoration: none;
    box-shadow: 0 8px 22px rgba(37,99,235,.32);
    font-size: 22px; line-height: 1;
    transition: transform .18s, box-shadow .2s, width .2s, background .2s;
    overflow: hidden; white-space: nowrap;
}
.float-btn:hover { transform: translateY(-3px); box-shadow: 0 12px 28px rgba(37,99,235,.42); }
.float-consult { background: var(--c-accent); box-shadow: 0 8px 22px rgba(14,165,233,.32); }
.float-consult:hover { box-shadow: 0 12px 28px rgba(14,165,233,.45); }
.float-icon { display: inline-flex; align-items: center; justify-content: center; }
/* 默认只显示图标，hover 才展开文字 */
.float-label { display: none; font-size: 14px; font-weight: 600; }
@media (min-width: 1025px) {
    .float-btn:hover { width: auto; padding: 0 18px; }
    .float-btn:hover .float-label { display: inline; }
}
/* 返回顶部按钮默认隐藏，滚动后由 JS 显示 */
.float-top { background: var(--c-dark); box-shadow: 0 8px 22px rgba(15,23,42,.28); opacity: 0; visibility: hidden; transform: translateY(12px); pointer-events: none; }
.float-top.show { opacity: 1; visibility: visible; transform: translateY(0); pointer-events: auto; }
@media (max-width: 1024px) {
    .float-actions { right: 14px; bottom: 14px; gap: 10px; }
    .float-btn { width: 46px; height: 46px; font-size: 19px; }
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .grid-3, .grid-2, .metrics { grid-template-columns: 1fr 1fr; }
    .contact-grid, .footer-grid { grid-template-columns: 1fr; }
    /* 移动 / 平板 / 微信内置浏览器：导航折叠为汉堡菜单 */
    .nav-toggle { display: block; }
    .site-nav {
        /* fixed 定位：不受父容器 overflow/position 影响，微信浏览器兼容性最好 */
        position: fixed; top: 68px; left: 0;
        width: 100vw; box-sizing: border-box;
        background: #fff; flex-direction: column; align-items: stretch;
        gap: 0; padding: 8px 20px 16px; border-bottom: 1px solid var(--c-border);
        display: none; box-shadow: 0 10px 30px rgba(15,23,42,.12); z-index: 9999;
    }
    .site-nav.open { display: flex; }
    .site-nav a:not(.btn-nav) { padding: 13px 0; border-bottom: 1px solid var(--c-bg-soft); }
    .nav-mega-wrap { width: 100%; display: block; }
    /* 彻底封死 mega panel 内容（四重保险） */
    .nav-mega-panel,
    .nav-mega-grid,
    .nav-mega-card,
    .nav-mega-icon,
    .nav-mega-footer { display: none !important; height: 0 !important; overflow: hidden !important; max-height: 0 !important; }
    /* 移动端：mega 导航项样式与普通导航项完全一致（去掉箭头、统一颜色、压住桌面 hover 蓝色） */
    .nav-mega-wrap > a,
    .nav-mega-wrap:hover > a {
        display: block;
        color: var(--c-text) !important;
        padding: 13px 0;
        border-bottom: 1px solid var(--c-bg-soft);
    }
    .nav-mega-wrap:hover > a { background: transparent !important; }
    .nav-mega-wrap > a::after { display: none !important; }
}
@media (max-width: 640px) {
    .metrics, .grid-3, .grid-2 { grid-template-columns: 1fr; }
    section { padding: 52px 0; }
    .cta { padding: 36px 22px; }
}

/* ===== 服务面板（三列分组风格） ===== */
.svc-panel-section { padding: 60px 0 48px; }

/* ===== 会议系统开发 全流程卡片（一步一卡，不重复） ===== */
.meeting-flow { display: flex; flex-direction: column; gap: 20px; margin-top: 8px; }
.mf-card {
    display: flex; align-items: stretch; gap: 0;
    background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius);
    box-shadow: var(--shadow); overflow: hidden;
    transition: transform .2s, box-shadow .2s;
}
.mf-card:hover { transform: translateY(-3px); box-shadow: 0 12px 32px rgba(37,99,235,.12); border-color: #c7d2fe; }
.mf-step {
    width: 56px; min-height: 100px; flex-shrink: 0;
    display: grid; place-items: center;
    font-size: 22px; font-weight: 800; color: #fff;
    background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
}
.mf-body {
    flex: 1; padding: 20px 24px; display: flex; align-items: center; gap: 18px;
}
.mf-icon {
    width: 52px; height: 52px; flex-shrink: 0;
    display: grid; place-items: center; font-size: 26px;
    background: #eff6ff; border-radius: 12px;
}
.mf-body h3 { margin: 0; font-size: 18px; color: var(--c-dark); white-space: nowrap; }
.mf-summary { margin: 0; font-size: 14px; color: var(--c-muted); white-space: nowrap; }
.mf-detail { margin: 4px 0 0; font-size: 13px; color: #64748b; line-height: 1.5; }

@media (max-width: 768px) {
    .mf-card { flex-direction: column; }
    .mf-step { width: 100%; min-height: 40px; font-size: 16px; }
    .mf-body { flex-direction: column; align-items: flex-start; gap: 10px; padding: 16px 18px; }
    .mf-body h3, .mf-summary { white-space: normal; }
}
.svc-panel {
    background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius);
    box-shadow: var(--shadow); padding: 40px 36px 32px;
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px;
}
.svc-col { display: flex; flex-direction: column; }
.svc-col-head {
    display: flex; align-items: center; gap: 8px;
    margin-bottom: 18px; padding-bottom: 14px;
    border-bottom: 1px solid var(--c-border);
}
.svc-col-icon { font-size: 20px; width: 34px; height: 34px; display: grid; place-items: center;
    background: linear-gradient(135deg, #eff6ff, #dbeafe); border-radius: 8px; flex-shrink: 0; }
.svc-col-title { font-size: 17px; font-weight: 700; color: var(--c-dark); white-space: nowrap; }
.svc-list { list-style: none; padding: 0; margin: 0; flex: 1; }
.svc-list li {
    display: flex; align-items: center; gap: 10px;
    padding: 9px 0; cursor: pointer; transition: color .15s;
    border-radius: 6px; margin: 0 -4px;
}
.svc-list li:hover { background: var(--c-bg-soft); }
.svc-list li:hover .svc-item-text { color: var(--c-primary); }
.svc-item-icon {
    font-size: 16px; width: 30px; height: 30px; display: grid; place-items: center;
    background: #f1f5f9; border-radius: 7px; flex-shrink: 0; font-size: 13px;
}
.svc-item-text { font-size: 14.5px; color: var(--c-text); transition: color .15s; }
.svc-col-more {
    display: inline-block; margin-top: 14px; padding-top: 12px;
    border-top: 1px dashed var(--c-border);
    font-size: 13.5px; color: var(--c-primary); font-weight: 600;
}
.svc-panel-footer { text-align: center; margin-top: 24px; }
.svc-all-link {
    display: inline-block; font-size: 15px; color: var(--c-primary);
    font-weight: 600; padding: 10px 28px; border-radius: 999px;
    border: 1px solid var(--c-border); transition: all .2s;
}
.svc-all-link:hover { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }

@media (max-width: 900px) {
    .svc-panel { grid-template-columns: repeat(2, 1fr); gap: 22px; padding: 28px 22px 22px; }
}
@media (max-width: 640px) {
    .svc-panel { grid-template-columns: 1fr; gap: 18px; padding: 22px 16px 18px; }
    .svc-panel-section { padding: 40px 0 32px; }
}

/* ===== 商会黄页 介绍页（复用通用卡片样式，无需额外类） ===== */
.hy-hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 26px; }
.hy-ref { margin-top: 30px; font-size: 13px; color: #94a3b8; text-align: center; }
.hy-ref a { color: var(--c-muted); }
.hy-callout { background: #fff; border: 1px solid var(--c-border); border-left: 4px solid var(--c-primary);
    border-radius: 12px; padding: 22px 24px; }
.hy-callout h3 { margin: 0 0 8px; color: var(--c-dark); font-size: 18px; }
.hy-callout p { margin: 0; color: var(--c-muted); font-size: 15px; }

/* ===== FAQ（GEO 友好，原生 details 手风琴） ===== */
.faq { max-width: 880px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item { background: #fff; border: 1px solid var(--c-border); border-radius: 12px; overflow: hidden; transition: border-color .2s, box-shadow .2s; }
.faq-item[open] { border-color: var(--c-primary); box-shadow: 0 8px 24px rgba(15,23,42,.06); }
.faq-item summary { cursor: pointer; list-style: none; padding: 18px 54px 18px 22px; position: relative; font-weight: 700; color: var(--c-dark); font-size: 16px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: 22px; top: 50%; transform: translateY(-50%); font-size: 22px; color: var(--c-primary); font-weight: 400; transition: transform .2s; }
.faq-item[open] summary::after { content: "\2212"; }
/* ===== 导航 Mega Menu（hover 弹出，所有业务线共用） ===== */
/* 桌面端（≥1025px）：定位锚点改为 .site-nav，面板统一靠右停靠 */
/* 仅在 ≥1025px 生效，否则会覆盖移动端折叠菜单的 fixed 定位导致布局错乱 / 遮挡 */
@media (min-width: 1025px) {
    .site-nav { position: relative; }
    /* 桌面端 mega wrap 必须与普通 <a> 导航项完全同等的 flex 对齐表现：
       display:inline-flex + align-items:center 确保 div 包裹的 <a> 与裸 <a> 基线一致 */
    .nav-mega-wrap {
        display: inline-flex;
        align-items: center;
        position: static;
    }
}
.nav-mega-panel {
    position: absolute; top: 100%; right: 0; left: auto; transform: none;
    width: 860px; max-width: calc(100vw - 40px);
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: 16px;
    box-shadow: 0 20px 50px rgba(15,23,42,.12), 0 4px 16px rgba(15,23,42,.06);
    padding: 32px 36px 24px;
    opacity: 0; visibility: hidden;
    pointer-events: none;
    transition: opacity .22s ease, visibility .22s ease, transform .22s ease;
    z-index: 200;
}
.nav-mega-wrap:hover > a,
.nav-mega-wrap.mega-open > a,
.nav-mega-wrap.mega-open .nav-mega-panel {
    color: var(--c-primary);
}
.nav-mega-wrap.mega-open .nav-mega-panel {
    opacity: 1; visibility: visible; pointer-events: auto;
    transform: translateY(6px);
}

/* 3×2 卡片网格 */
.nav-mega-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}
.nav-mega-card {
    background: #fafbfc;
    border: 1px solid #eef0f2;
    border-radius: 14px;
    padding: 20px 18px 18px;
    transition: border-color .2s, box-shadow .2s, transform .2s;
}
.nav-mega-card:hover {
    border-color: #c7d2fe;
    box-shadow: 0 8px 24px rgba(37,99,235,.08);
    transform: translateY(-2px);
    background: #fff;
}
.nav-mega-icon {
    width: 44px; height: 44px;
    display: grid; place-items: center;
    font-size: 22px;
    background: linear-gradient(135deg, #eff6ff, #dbeafe);
    border-radius: 11px;
    margin-bottom: 10px;
}
.nav-mega-card h4 {
    margin: 0 0 6px;
    font-size: 15.5px;
    font-weight: 700;
    color: var(--c-dark);
}
.nav-mega-card p {
    margin: 0 0 5px;
    font-size: 13px;
    line-height: 1.55;
    color: var(--c-muted);
}
.nav-mega-card p:last-child {
    margin-bottom: 0;
    color: #94a3b8;
    font-size: 12.5px;
}

/* 底部链接 */
.nav-mega-footer {
    text-align: center;
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px dashed var(--c-border);
}
.nav-mega-footer a {
    display: inline-block;
    font-size: 14px;
    color: var(--c-primary);
    font-weight: 600;
    padding: 7px 22px;
    border-radius: 999px;
    border: 1px solid var(--c-border);
    transition: all .2s;
}
.nav-mega-footer a:hover {
    background: var(--c-primary);
    color: #fff;
    border-color: var(--c-primary);
}

/* 移动端：彻底封死 mega menu 面板内容（合并到主 900px 断点块内确保生效） */
.faq-a { padding: 0 22px 20px; color: var(--c-muted); font-size: 15px; line-height: 1.8; }

/* ===================== 详情页：上一篇 / 下一篇 ===================== */
.post-nav {
    display: flex;
    gap: 16px;
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid var(--c-border);
}
.post-nav-item {
    flex: 1 1 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
    padding: 16px 18px;
    border: 1px solid var(--c-border);
    border-radius: 12px;
    background: var(--c-bg);
    text-decoration: none;
    transition: border-color .2s, box-shadow .2s, transform .2s;
}
.post-nav-item:hover {
    border-color: var(--c-primary);
    box-shadow: 0 6px 18px rgba(37, 99, 235, .12);
    transform: translateY(-2px);
}
.post-nav-item.next { text-align: right; align-items: flex-end; }
.post-nav-item .lbl {
    font-size: 13px;
    color: var(--c-muted);
    font-weight: 600;
}
.post-nav-item .ttl {
    font-size: 15px;
    font-weight: 600;
    color: var(--c-text);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.post-nav-item:hover .ttl { color: var(--c-primary); }
.post-nav-item.disabled { visibility: hidden; }

/* ===================== 正文关键字内链 ===================== */
.article .ilink,
.ilink {
    color: var(--c-primary);
    text-decoration: none;
    border-bottom: 1px dashed var(--c-primary);
    padding-bottom: 1px;
    transition: color .2s, border-color .2s;
}
.article .ilink:hover,
.ilink:hover {
    color: #1d4ed8;
    border-bottom-style: solid;
}

/* ===================== 语言切换器（简体 / EN / 繁體） ===================== */
.lang-switch {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    margin-left: 4px;
    padding: 3px;
    background: var(--c-bg-soft);
    border: 1px solid var(--c-border);
    border-radius: 999px;
}
.lang-switch a {
    padding: 5px 12px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--c-muted);
    transition: background .2s, color .2s;
}
.lang-switch a:hover {
    color: var(--c-primary);
    background: #fff;
}
.lang-switch a.is-current {
    background: var(--c-primary);
    color: #fff;
}
@media (max-width: 900px) {
    .lang-switch { margin: 10px 0 4px; }
    .lang-switch a { padding: 7px 16px; font-size: 14px; }
}