/* ============================================================
   企业号 - 让专业说话 让产品被看见
   全局样式：黑白灰主调 + 品牌橙点缀
   ============================================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --text-main: #222;
  --text-sub: #666;
  --text-light: #999;
  --bg-page: #f7f7f8;
  --bg-white: #fff;
  --border: #e8e8ea;
  --brand: #ff6a00;
  --brand-dark: #e55d00;
  --dark: #1b1d21;
  --radius: 10px;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
  --container: 1200px;
}

html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-main);
  background: var(--bg-page);
}
a { color: inherit; text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--brand); }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }

/* ===================== 顶部导航 ===================== */
.site-header {
  --header-h: 68px; /* 导航高度，修改此值 LOGO 即自动适配 */
  position: sticky; top: 0; z-index: 100;
  background: var(--bg-white);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }
.logo { display: flex; align-items: center; gap: 8px; height: 100%; }
.logo img {
  height: calc(var(--header-h) - 26px); /* 随导航高度自适应 */
  max-height: 100%; width: auto; max-width: 100%;
  object-fit: contain;
}
.logo-mark {
  font-size: 0px; font-weight: 900; letter-spacing: 1px; color: var(--dark);
}
.logo-mark em { font-style: normal; color: var(--brand); }
.logo-slogan { font-size: 0px; color: var(--text-light); }
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a {
  padding: 8px 14px; font-size: 16px; color: var(--text-main); border-radius: 6px;
}
.main-nav a:hover { color: var(--brand); }
.main-nav a.active { color: var(--brand); font-weight: 700; }
.btn-submit {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--brand); color: #fff !important; font-weight: 700;
  padding: 9px 20px; border-radius: 6px; font-size: 15px; margin-left: 10px;
}
.btn-submit:hover { background: var(--brand-dark); }
.nav-toggle {
  display: none; background: none; border: 1px solid var(--border); border-radius: 6px;
  width: 42px; height: 42px; font-size: 20px; cursor: pointer; color: var(--dark);
}

/* 移动端抽屉 */
.drawer-mask { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 200; }
.mobile-drawer {
  position: fixed; top: 0; right: -300px; bottom: 0; width: 280px; z-index: 210;
  background: #fff; padding: 20px; transition: right 0.28s ease; overflow-y: auto;
}
.mobile-drawer.open { right: 0; }
.drawer-close { float: right; background: none; border: none; font-size: 24px; cursor: pointer; color: var(--text-sub); }
.mobile-drawer nav { margin-top: 44px; display: flex; flex-direction: column; }
.mobile-drawer nav a { padding: 14px 8px; font-size: 17px; border-bottom: 1px solid var(--border); }
.mobile-drawer .btn-submit { margin: 18px 8px 0; justify-content: center; }

/* ===================== 品牌介绍区 ===================== */
.brand-hero { background: linear-gradient(180deg, #fff 0%, var(--bg-page) 100%); padding: 56px 0 40px; }
.brand-hero h1 { font-size: 40px; font-weight: 900; text-align: center; margin-bottom: 24px; }
.brand-hero h1 em { font-style: normal; color: var(--brand); }
.brand-intro { max-width: 860px; margin: 0 auto; }
.brand-intro p { font-size: 17px; color: var(--text-sub); text-align: justify; margin-bottom: 14px; }
.brand-intro p strong { color: var(--text-main); }
.cat-nav { display: flex; justify-content: center; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.cat-nav a {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff; border: 1px solid var(--border); border-radius: 999px;
  padding: 10px 26px; font-size: 16px; font-weight: 600; box-shadow: var(--shadow);
}
.cat-nav a:hover, .cat-nav a.active { border-color: var(--brand); color: var(--brand); background: #fff7f2; }

/* ===================== 主体两栏 ===================== */
.main-layout { display: grid; grid-template-columns: 1fr 340px; gap: 28px; padding: 36px 0 60px; align-items: start; }
.section-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.section-head h2 { font-size: 24px; font-weight: 900; position: relative; padding-left: 14px; }
.section-head h2::before {
  content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 5px; height: 22px; background: var(--brand); border-radius: 3px;
}
.section-head .more { font-size: 14px; color: var(--text-light); }

/* 文章列表卡片 */
.article-list { display: flex; flex-direction: column; gap: 16px; }
.article-card {
  display: flex; gap: 18px; background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px; transition: box-shadow 0.25s, transform 0.25s;
}
.article-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.article-thumb {
  flex: 0 0 168px; height: 112px; border-radius: 8px; overflow: hidden; background: #eee;
}
.article-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.article-card:hover .article-thumb img { transform: scale(1.05); }
.article-body { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.article-body h3 { font-size: 19px; line-height: 1.5; font-weight: 700; margin-bottom: 8px; }
.article-body h3 a { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.article-excerpt {
  font-size: 14px; color: var(--text-sub); margin-bottom: 10px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.article-meta { margin-top: auto; display: flex; align-items: center; gap: 16px; font-size: 13px; color: var(--text-light); }
.article-meta .region { padding: 2px 10px; background: #f2f3f5; border-radius: 4px; }
.article-meta .cat-tag { color: var(--brand); }

/* 分页 */
.pagination { display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 30px; flex-wrap: wrap; }
.pagination a, .pagination span {
  min-width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center;
  padding: 0 12px; background: #fff; border: 1px solid var(--border); border-radius: 6px; font-size: 15px;
}
.pagination .current { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 700; }
.pagination a:hover { border-color: var(--brand); color: var(--brand); }

/* ===================== 侧边栏 ===================== */
.side-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; margin-bottom: 22px; }
.side-card h3 { font-size: 19px; font-weight: 900; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--border); }
.side-card h3 i { color: var(--brand); margin-right: 6px; font-style: normal; }

/* 推荐关注企业 */
.follow-item { display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px dashed var(--border); align-items: flex-start; }
.follow-item:last-child { border-bottom: none; }
.company-logo {
  flex: 0 0 48px; height: 48px; border-radius: 8px; color: #fff; font-weight: 900; font-size: 20px;
  display: flex; align-items: center; justify-content: center;
}
.follow-info { flex: 1; min-width: 0; }
.follow-info h4 { font-size: 15px; font-weight: 700; line-height: 1.4; }
.follow-info h4 .verified {
  display: inline-block; font-size: 11px; color: #0a8f4d; background: #e6f6ee;
  border-radius: 3px; padding: 0 6px; margin-left: 6px; vertical-align: 1px; font-weight: 600;
}
.follow-info p { font-size: 13px; color: var(--text-light); margin-top: 4px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.follow-btn {
  flex: 0 0 auto; font-size: 13px; color: var(--brand); border: 1px solid var(--brand);
  border-radius: 999px; padding: 3px 14px; background: #fff; cursor: pointer; transition: 0.2s;
}
.follow-btn:hover, .follow-btn.done { background: var(--brand); color: #fff; }

/* 热榜 */
.rank-list li { display: flex; gap: 12px; padding: 11px 0; border-bottom: 1px dashed var(--border); align-items: flex-start; }
.rank-list li:last-child { border-bottom: none; }
.rank-no {
  flex: 0 0 24px; height: 24px; display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 900; color: var(--text-light); background: #f2f3f5; border-radius: 5px; margin-top: 3px;
}
.rank-list li:nth-child(1) .rank-no { background: #ff4d4f; color: #fff; }
.rank-list li:nth-child(2) .rank-no { background: #ff9a2e; color: #fff; }
.rank-list li:nth-child(3) .rank-no { background: #ffc53d; color: #fff; }
.rank-list a { font-size: 15px; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* 平台数据 */
.stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.stat-cell { background: var(--bg-page); border-radius: 8px; padding: 14px 10px; text-align: center; }
.stat-cell b { display: block; font-size: 24px; font-weight: 900; color: var(--brand); }
.stat-cell span { font-size: 13px; color: var(--text-sub); }

/* ===================== CTA 区 ===================== */
.cta-band { background: var(--dark); color: #fff; padding: 56px 0; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.cta-inner h2 { font-size: 30px; font-weight: 900; }
.cta-inner h2 em { font-style: normal; color: var(--brand); }
.cta-inner p { color: #b8bcc4; font-size: 16px; margin-top: 8px; }
.btn-cta {
  display: inline-flex; align-items: center; gap: 8px; background: var(--brand); color: #fff;
  font-size: 17px; font-weight: 700; padding: 14px 34px; border-radius: 8px;
}
.btn-cta:hover { background: var(--brand-dark); color: #fff; }

/* ===================== 页脚 ===================== */
.site-footer { background: #14161a; color: #9aa0ab; padding: 48px 0 0; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 36px; padding-bottom: 40px; }
.footer-grid h4 { color: #fff; font-size: 16px; margin-bottom: 16px; }
.footer-about p { line-height: 1.9; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: #9aa0ab; }
.footer-links a:hover { color: var(--brand); }
.footer-contact li { margin-bottom: 10px; display: flex; gap: 8px; }
.footer-bottom { border-top: 1px solid #2a2d33; padding: 18px 0; text-align: center; color: #6b7280; font-size: 13px; }
.footer-bottom .beian { margin-left: 12px; }

/* ===================== 内页通用 ===================== */
.page-banner { background: var(--dark); color: #fff; padding: 44px 0; }
.page-banner h1 { font-size: 30px; font-weight: 900; }
.breadcrumb { font-size: 14px; color: #9aa0ab; margin-top: 10px; }
.breadcrumb a { color: #c6cbd3; }
.breadcrumb a:hover { color: var(--brand); }

/* 文章详情 */
.article-layout { display: grid; grid-template-columns: 1fr 340px; gap: 28px; padding: 36px 0 60px; align-items: start; }
.article-main { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 36px 40px; }
.article-main h1 { font-size: 30px; line-height: 1.45; font-weight: 900; margin-bottom: 16px; }
.article-info { display: flex; flex-wrap: wrap; gap: 18px; font-size: 14px; color: var(--text-light); padding-bottom: 20px; border-bottom: 1px solid var(--border); margin-bottom: 26px; }
.article-content p { font-size: 17px; line-height: 2; color: #333; margin-bottom: 20px; text-align: justify; }
.article-content h2 { font-size: 21px; font-weight: 800; margin: 30px 0 14px; padding-left: 12px; border-left: 4px solid var(--brand); }
.article-content img { border-radius: 8px; margin: 8px 0 20px; }
.related-box { margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--border); }
.related-box h3 { font-size: 19px; font-weight: 900; margin-bottom: 14px; }
.related-box li { padding: 8px 0; border-bottom: 1px dashed var(--border); display: flex; justify-content: space-between; gap: 14px; }
.related-box li:last-child { border-bottom: none; }
.related-box .t { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.related-box .d { color: var(--text-light); font-size: 13px; flex: 0 0 auto; }

/* 作者企业卡片（详情页侧栏） */
.author-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; position: sticky; top: 88px; margin-bottom: 24px; }
.author-card .ac-head { display: flex; gap: 14px; align-items: center; margin-bottom: 16px; }
.author-card .company-logo { flex: 0 0 56px; height: 56px; font-size: 24px; }
.author-card h3 { font-size: 18px; font-weight: 900; line-height: 1.4; }
.author-card h3 .verified { display: block; width: fit-content; font-size: 12px; color: #0a8f4d; background: #e6f6ee; border-radius: 3px; padding: 1px 8px; margin-top: 4px; font-weight: 600; }
.ac-rows { border-top: 1px solid var(--border); padding-top: 14px; }
.ac-rows .row { display: flex; font-size: 14px; margin-bottom: 10px; }
.ac-rows .row b { flex: 0 0 76px; color: var(--text-light); font-weight: 400; }
.ac-rows .row span { color: var(--text); }
/* 企业平台链接（官网/抖音/头条/百家/小红书）：自适应最多 2 列 */
.site-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin: 12px 0; }
.site-links .site-link { display: inline-flex; align-items: center; justify-content: center; gap: 5px; padding: 6px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 13px; color: var(--text-sub); background: #fafbfc; transition: all .25s; min-width: 0; }
.site-links .site-link span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.site-links .site-link i { font-size: 15px; color: var(--brand); flex: none; }
.site-links .site-link:hover { border-color: var(--brand); color: var(--brand); background: #fff5ef; }
/* 移动端补充区块：侧栏隐藏时展示平台链接（桌面隐藏，≤1024px 显示） */
.mobile-only { display: none; }
.author-links { margin-top: 22px; padding: 16px 18px; background: #fff; border: 1px solid var(--border); border-radius: 10px; }
.author-links h3 { font-size: 15px; font-weight: 900; margin-bottom: 4px; }
.author-links .bi-link-45deg { color: var(--brand); margin-right: 4px; }
.company-hero-links { padding-top: 14px; padding-bottom: 14px; }
.ac-phone { font-size: 22px !important; font-weight: 900; color: var(--brand) !important; }
.ac-actions { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }
.ac-actions .btn-primary, .ac-actions .btn-ghost {
  display: block; text-align: center; padding: 10px; border-radius: 6px; font-size: 15px; font-weight: 700;
}
.ac-actions .btn-primary { background: var(--brand); color: #fff; }
.ac-actions .btn-primary:hover { background: var(--brand-dark); color: #fff; }
.ac-actions .btn-ghost { border: 1px solid var(--brand); color: var(--brand); }
.ac-actions .btn-ghost:hover { background: #fff5ef; }
/* 电话/微信并排按钮行（微信在电话左侧） */
.ac-duo { display: flex; gap: 10px; }
.ac-duo > * { flex: 1; min-width: 0; }
.btn-wx { display: block; text-align: center; padding: 10px; border-radius: 6px; font-size: 15px; font-weight: 700; background: #07c160; color: #fff; border: none; cursor: pointer; font-family: inherit; }
.btn-wx:hover { background: #05a552; color: #fff; }
/* 微信号弹出层 */
.wx-mask { position: fixed; inset: 0; background: rgba(0,0,0,.55); display: flex; align-items: center; justify-content: center; z-index: 2000; }
.wx-pop { background: #fff; border-radius: 12px; padding: 26px 28px 22px; width: min(330px, 88vw); text-align: center; position: relative; }
.wx-pop .wx-ic { width: 54px; height: 54px; border-radius: 50%; background: #e9f9f0; color: #07c160; font-size: 30px; display: flex; align-items: center; justify-content: center; margin: 0 auto 12px; }
.wx-pop h3 { font-size: 17px; font-weight: 900; margin-bottom: 6px; }
.wx-pop .wx-tip { font-size: 13px; color: var(--text-light); margin-bottom: 14px; }
.wx-pop .wx-id { display: block; background: #f6f7f9; border: 1px dashed var(--border); border-radius: 8px; padding: 11px 12px; font-size: 16px; font-weight: 700; color: var(--text); word-break: break-all; margin-bottom: 14px; }
.wx-pop .wx-copy { display: inline-block; background: #07c160; color: #fff; border: none; border-radius: 6px; padding: 10px 26px; font-size: 15px; font-weight: 700; cursor: pointer; }
.wx-pop .wx-copy:hover { background: #05a552; color: #fff; }
.wx-pop .wx-copy.done { background: var(--brand); }
.wx-pop .wx-close { position: absolute; top: 8px; right: 10px; border: none; background: none; color: var(--text-light); font-size: 20px; cursor: pointer; line-height: 1; padding: 4px; }
.wx-pop .wx-close:hover { color: var(--text); }
/* 扫码拨号弹层（桌面端点击电话咨询） */
.wx-pop .qr-box { background: #fff; border: 1px solid var(--border); border-radius: 8px; padding: 10px; margin: 0 auto 12px; width: fit-content; }
.wx-pop .qr-box svg, .wx-pop .qr-box img { display: block; width: 190px; height: 190px; }
.wx-pop .tel-id { display: block; background: #f6f7f9; border: 1px dashed var(--border); border-radius: 8px; padding: 10px 12px; font-size: 17px; font-weight: 700; color: var(--text); margin-bottom: 6px; }
.wx-pop .tel-tip2 { font-size: 12px; color: var(--text-light); }

/* 企业主页 */
.company-hero { background: #fff; border-bottom: 1px solid var(--border); padding: 34px 0; }
.company-hero-inner { display: flex; gap: 22px; align-items: center; flex-wrap: wrap; }
.company-hero .company-logo { flex: 0 0 116px; height: 116px; font-size: 64px; border-radius: 14px; }
.company-hero h1 { font-size: 26px; font-weight: 900; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.company-hero .verified-badge { font-size: 13px; color: #0a8f4d; background: #e6f6ee; border-radius: 4px; padding: 2px 10px; font-weight: 600; }
.company-hero .fields { color: var(--text-sub); font-size: 15px; margin-top: 6px; }
.company-stats { margin-left: auto; display: flex; gap: 34px; text-align: center; }
.company-stats b { display: block; font-size: 24px; font-weight: 900; color: var(--brand); }
.company-stats span { font-size: 13px; color: var(--text-light); }

/* 投稿/关于页 */
.plain-page { padding: 40px 0 60px; }
.plain-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 40px 44px; max-width: 860px; margin: 0 auto; }
.plain-card h2 { font-size: 22px; font-weight: 900; margin: 26px 0 12px; }
.plain-card h2:first-child { margin-top: 0; }
.plain-card p, .plain-card li { font-size: 16px; color: #444; line-height: 1.9; }
.plain-card ol { list-style: decimal; padding-left: 22px; }
.plain-card ol li { margin-bottom: 8px; }
.step-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin: 18px 0; }
.step-card { background: var(--bg-page); border-radius: 8px; padding: 18px 14px; text-align: center; }
.step-card b { display: block; font-size: 26px; color: var(--brand); font-weight: 900; }
.step-card span { font-size: 14px; color: var(--text-sub); }
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 18px 0; }
.contact-cell { border: 1px solid var(--border); border-radius: 8px; padding: 22px; text-align: center; }
.contact-cell .ic { font-size: 26px; margin-bottom: 8px; }
.contact-cell b { display: block; font-size: 15px; margin-bottom: 6px; }
.contact-cell p { font-size: 15px; color: var(--brand); font-weight: 700; word-break: break-all; }

/* 返回顶部 */
.back-top {
  position: fixed; right: 26px; bottom: 40px; width: 46px; height: 46px; display: none;
  align-items: center; justify-content: center;
  background: var(--brand); color: #fff; border: none; border-radius: 50%; font-size: 18px;
  cursor: pointer; box-shadow: var(--shadow-hover); z-index: 150; transition: transform 0.2s;
}
.back-top:hover { transform: translateY(-3px); }

/* Bootstrap Icons 对齐微调 */
.bi { display: inline-flex; align-items: center; vertical-align: -0.125em; line-height: 1; }
a .bi, button .bi, h3 .bi, h4 .bi { vertical-align: -2px; }

/* 滚动淡入 */
.fade-up { opacity: 0; transform: translateY(28px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-up.in-view { opacity: 1; transform: translateY(0); }

/* ===================== 移动端页脚折叠（栏目导航 / 快速入口） ===================== */
.footer-toggle { display: none; }
.footer-col .footer-body { transition: max-height 0.3s ease, padding 0.3s ease; }
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; gap: 0; padding-bottom: 24px; }
  .footer-grid .footer-col { border-bottom: 1px solid #2a2d33; }
  .footer-grid .footer-col:last-child { border-bottom: none; }
  .footer-col.collapsible > h4 { display: none; }
  .footer-col.collapsible .footer-toggle {
    display: flex; width: 100%; align-items: center; justify-content: space-between;
    background: none; border: none; color: #fff; font-size: 16px; font-weight: 700;
    padding: 16px 4px; cursor: pointer; font-family: inherit;
  }
  .footer-col.collapsible .footer-toggle .bi { transition: transform 0.3s ease; color: var(--brand); font-size: 14px; }
  .footer-col.collapsible.open .footer-toggle .bi { transform: rotate(180deg); }
  .footer-col.collapsible .footer-body { max-height: 0; overflow: hidden; }
  .footer-col.collapsible.open .footer-body { max-height: 420px; padding-bottom: 14px; }
  .footer-col:not(.collapsible) { padding: 16px 0; }
  .footer-col:not(.collapsible) h4 { margin-bottom: 12px; }
  .footer-about .footer-body p { text-align: justify; }
  .footer-links li, .footer-contact li { margin-bottom: 12px; }
  .footer-links .bi, .footer-contact .bi { color: var(--brand); margin-right: 6px; font-size: 14px; }
}
@media (min-width: 769px) {
  .footer-links .bi, .footer-contact .bi { color: var(--brand); margin-right: 8px; font-size: 14px; }
}

/* ===================== 响应式 ===================== */
@media (max-width: 1024px) {
  .main-layout, .article-layout { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .mobile-only { display: block; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .step-cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .main-nav { display: none; }
  .nav-toggle { display: block; }
  .brand-hero h1 { font-size: 28px; }
  .brand-intro p { font-size: 15px; }
  .article-card { flex-direction: column; }
  .article-thumb { flex: none; width: 100%; height: 180px; }
  .article-body h3 { font-size: 17px; }
  .article-main { padding: 24px 20px; }
  .article-main h1 { font-size: 23px; }
  .cta-inner { flex-direction: column; text-align: center; }
  .cta-inner h2 { font-size: 24px; }
  .company-stats { margin-left: 0; width: 100%; justify-content: space-between; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .contact-grid { grid-template-columns: 1fr; }
  .plain-card { padding: 26px 20px; }
  .company-hero .company-logo { display: none; }
}