/*!
 * 防伪人主题（绿色简约版） v2.0
 * 纯 CSS 实现，无框架依赖，适配移动端
 */
:root {
  --green-50: #f0fdf4;
  --green-100: #dcfce7;
  --green-500: #22c55e;
  --green-600: #16a34a;
  --green-700: #15803d;
  --green-800: #166534;
  --green-900: #14532d;
  --ink: #111827;
  --ink-2: #374151;
  --muted: #6b7280;
  --line: #e5e7eb;
  --bg: #ffffff;
  --bg-soft: #f8faf9;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(17, 24, 39, .05);
  --shadow-lg: 0 12px 32px -12px rgba(20, 83, 45, .18);
  --wrap: 1140px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px; line-height: 1.7; color: var(--ink); background: var(--bg);
}
img { max-width: 100%; height: auto; border: 0; display: block; }
a { color: var(--green-700); text-decoration: none; transition: color .2s; }
a:hover { color: var(--green-800); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; font-size: 15px; color: var(--ink); }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
.section { padding: 72px 0; }
.section.soft { background: var(--bg-soft); }
.section.tint { background: var(--green-50); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.section-head h2 { font-size: 30px; line-height: 1.35; color: var(--ink); }
.section-head h2 em { font-style: normal; color: var(--green-700); }
.section-head p { margin-top: 12px; color: var(--muted); font-size: 16px; }
.more-link { font-size: 14px; }

/* ============ 按钮 ============ */
.btn {
  display: inline-block; padding: 11px 26px; border-radius: 8px; border: 1px solid transparent;
  font-size: 15px; line-height: 1.5; text-align: center; white-space: nowrap; transition: all .2s;
}
.btn-primary { background: var(--green-600); color: #fff; }
.btn-primary:hover { background: var(--green-700); color: #fff; }
.btn-outline { border-color: var(--green-600); color: var(--green-700); background: transparent; }
.btn-outline:hover { background: var(--green-600); color: #fff; }
.btn-white { background: #fff; color: var(--green-800); }
.btn-white:hover { background: var(--green-50); color: var(--green-900); }
.btn-ghost { border-color: rgba(255,255,255,.55); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.12); color: #fff; }
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-sm { padding: 7px 16px; font-size: 14px; }
.btn-block { display: block; width: 100%; }

/* ============ 顶部导航 ============ */
.site-header {
  position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.95);
  backdrop-filter: blur(8px); border-bottom: 1px solid var(--line);
}
.header-bar { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { height: 40px; width: auto; }
.brand .brand-name { font-size: 19px; font-weight: 700; color: var(--ink); letter-spacing: .5px; white-space: nowrap; }
.brand .brand-name span { color: var(--green-700); }
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav > li { position: relative; }
.main-nav > li > a {
  display: block; padding: 8px 15px; font-size: 15px; color: var(--ink-2); border-radius: 6px;
}
.main-nav > li > a:hover { color: var(--green-700); background: var(--green-50); }
.main-nav > li > a.active { color: var(--green-700); font-weight: 600; }
.main-nav .has-sub > a::after {
  content: ""; display: inline-block; width: 7px; height: 7px; margin-left: 6px;
  border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor;
  transform: translateY(-2px) rotate(45deg); opacity: .5;
}
.sub-nav {
  position: absolute; top: 100%; left: 8px; min-width: 150px; padding: 6px;
  background: #fff; border: 1px solid var(--line); border-radius: 8px; box-shadow: var(--shadow-lg);
  opacity: 0; visibility: hidden; transform: translateY(6px); transition: all .2s;
}
.main-nav li:hover .sub-nav { opacity: 1; visibility: visible; transform: translateY(0); }
.sub-nav a { display: block; padding: 8px 12px; font-size: 14px; color: var(--ink-2); border-radius: 6px; }
.sub-nav a:hover { background: var(--green-50); color: var(--green-700); }
.header-cta { margin-left: 14px; }
.nav-toggle { display: none; background: none; border: 0; width: 42px; height: 42px; position: relative; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 10px; width: 22px; height: 2px; background: var(--ink); transition: all .25s;
}
.nav-toggle span { top: 20px; }
.nav-toggle span::before { left: 0; top: -7px; }
.nav-toggle span::after { left: 0; top: 7px; }
body.nav-open .nav-toggle span { background: transparent; }
body.nav-open .nav-toggle span::before { top: 0; transform: rotate(45deg); }
body.nav-open .nav-toggle span::after { top: 0; transform: rotate(-45deg); }

/* ============ Hero ============ */
.hero {
  background: linear-gradient(150deg, #f0fdf4 0%, #ffffff 55%, #f0fdf4 100%);
  border-bottom: 1px solid var(--green-100);
  overflow: hidden;
}
.hero-inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; padding-top: 80px; padding-bottom: 84px; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px; padding: 5px 14px; margin-bottom: 20px;
  background: #fff; border: 1px solid var(--green-100); border-radius: 999px;
  font-size: 13px; color: var(--green-800);
}
.hero-tag svg { width: 14px; height: 14px; }
.hero h1 { font-size: 40px; line-height: 1.3; letter-spacing: .5px; }
.hero h1 strong { color: var(--green-700); }
.hero .hero-desc { margin: 18px 0 30px; font-size: 17px; color: var(--muted); max-width: 520px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 30px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px 24px; font-size: 14px; color: var(--ink-2); }
.hero-points li { display: flex; align-items: center; gap: 7px; }
.hero-points svg { width: 16px; height: 16px; flex: none; color: var(--green-600); }
.hero-art { display: flex; justify-content: center; }
.hero-art svg { width: 100%; max-width: 420px; height: auto; }

/* ============ 数据带 ============ */
.stats-band { border-bottom: 1px solid var(--line); background: #fff; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat-item { text-align: center; padding: 30px 12px; }
.stat-item + .stat-item { border-left: 1px solid var(--line); }
.stat-item .num { font-size: 32px; font-weight: 700; color: var(--green-700); line-height: 1.2; }
.stat-item .num small { font-size: 16px; font-weight: 600; }
.stat-item .label { margin-top: 4px; font-size: 14px; color: var(--muted); }

/* ============ 卡片网格 ============ */
.grid { display: grid; gap: 22px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--green-100); }

.feature-card { padding: 30px 26px; }
.feature-card .ico {
  display: inline-flex; align-items: center; justify-content: center; width: 52px; height: 52px;
  border-radius: 12px; background: var(--green-50); color: var(--green-600); margin-bottom: 18px;
}
.feature-card .ico svg { width: 26px; height: 26px; }
.feature-card h3 { font-size: 18px; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--muted); }

/* ============ 图文分栏 ============ */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; align-items: center; }
.split-media img, .split-media svg { border-radius: var(--radius); box-shadow: var(--shadow-lg); width: 100%; }
.split h2 { font-size: 28px; line-height: 1.35; margin-bottom: 14px; }
.split .split-desc { color: var(--muted); margin-bottom: 22px; }
.check-list li { display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px dashed var(--line); }
.check-list li:last-child { border-bottom: 0; }
.check-list svg { width: 20px; height: 20px; flex: none; color: var(--green-600); margin-top: 4px; }
.check-list strong { display: block; font-size: 16px; }
.check-list p { font-size: 14px; color: var(--muted); }

/* ============ 行业方案 ============ */
.industry-card { display: block; padding: 26px 24px; color: inherit; }
.industry-card h3 { font-size: 17px; display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.industry-card h3 svg { width: 20px; height: 20px; color: var(--green-600); flex: none; }
.industry-card p { font-size: 14px; color: var(--muted); }
.industry-card:hover h3 { color: var(--green-700); }

/* ============ 定价 ============ */
.price-card { display: flex; flex-direction: column; padding: 30px 26px; }
.price-card.hot { border-color: var(--green-600); box-shadow: var(--shadow-lg); position: relative; }
.price-card .ribbon {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: var(--green-600); color: #fff; font-size: 12px; padding: 3px 14px; border-radius: 999px; white-space: nowrap;
}
.price-card h3 { font-size: 17px; text-align: center; }
.price-card .price { text-align: center; margin: 14px 0 6px; }
.price-card .price .n { font-size: 34px; font-weight: 700; color: var(--green-700); }
.price-card .price .u { font-size: 13px; color: var(--muted); }
.price-card .for { text-align: center; font-size: 13px; color: var(--muted); margin-bottom: 16px; }
.price-list { flex: 1; margin-bottom: 22px; }
.price-list li { display: flex; align-items: flex-start; gap: 8px; font-size: 14px; padding: 5px 0; color: var(--ink-2); }
.price-list svg { width: 16px; height: 16px; flex: none; margin-top: 5px; color: var(--green-600); }
.price-list li.off { color: #9ca3af; }
.price-list li.off svg { color: #d1d5db; }

/* ============ 文章卡片（首页） ============ */
.post-card { overflow: hidden; display: flex; flex-direction: column; }
.post-card .thumb { display: block; aspect-ratio: 16 / 9; overflow: hidden; background: var(--green-50); }
.post-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
.post-card:hover .thumb img { transform: scale(1.04); }
.post-card .body { padding: 18px 20px 20px; flex: 1; display: flex; flex-direction: column; }
.post-card h3 { font-size: 16px; line-height: 1.5; }
.post-card h3 a { color: var(--ink); display: block; }
.post-card h3 a:hover { color: var(--green-700); }
.post-card .intro { margin-top: 8px; font-size: 13px; color: var(--muted); flex: 1; }
.post-card .meta { margin-top: 12px; font-size: 12px; color: #9ca3af; display: flex; gap: 14px; }

/* ============ 客户案例 ============ */
.case-card { overflow: hidden; }
.case-card .thumb { display: block; aspect-ratio: 16 / 10; overflow: hidden; background: var(--green-50); }
.case-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
.case-card:hover .thumb img { transform: scale(1.04); }
.case-card .body { padding: 16px 20px 18px; }
.case-card h3 { font-size: 16px; }
.case-card h3 a { color: var(--ink); }
.case-card p { margin-top: 6px; font-size: 13px; color: var(--muted); }

/* ============ 联系我们 ============ */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 52px; align-items: start; }
.contact-info h2 { font-size: 28px; margin-bottom: 12px; }
.contact-info > p { color: var(--muted); margin-bottom: 26px; }
.contact-line { display: flex; gap: 14px; padding: 14px 0; border-bottom: 1px dashed var(--line); }
.contact-line:last-child { border-bottom: 0; }
.contact-line svg { width: 20px; height: 20px; flex: none; color: var(--green-600); margin-top: 4px; }
.contact-line strong { display: block; font-size: 15px; }
.contact-line p { font-size: 14px; color: var(--muted); }
.contact-form { padding: 30px; }
.contact-form h3 { font-size: 18px; margin-bottom: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-item { margin-bottom: 16px; }
.form-item label { display: block; font-size: 14px; margin-bottom: 6px; color: var(--ink-2); }
.form-item label i { color: #dc2626; font-style: normal; margin-left: 2px; }
.form-item input, .form-item textarea {
  width: 100%; padding: 10px 14px; border: 1px solid var(--line); border-radius: 8px; background: #fff;
  transition: border-color .2s, box-shadow .2s;
}
.form-item input:focus, .form-item textarea:focus {
  outline: 0; border-color: var(--green-600); box-shadow: 0 0 0 3px rgba(22, 163, 74, .12);
}
.form-item textarea { resize: vertical; min-height: 96px; }
.hp-field { position: absolute; left: -9999px; opacity: 0; }

/* ============ 页脚 ============ */
.site-footer { background: var(--green-900); color: rgba(255,255,255,.82); margin-top: 72px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr; gap: 32px; padding: 56px 0 40px; }
.site-footer h4 { color: #fff; font-size: 15px; margin-bottom: 16px; font-weight: 600; }
.site-footer p { font-size: 13px; line-height: 1.9; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: rgba(255,255,255,.78); font-size: 13px; }
.footer-col a:hover { color: #fff; }
.footer-contact li { display: flex; gap: 8px; font-size: 13px; margin-bottom: 10px; }
.footer-contact svg { width: 15px; height: 15px; flex: none; margin-top: 4px; color: var(--green-500); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.14); padding: 18px 0;
  display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between;
  font-size: 13px; color: rgba(255,255,255,.6);
}
.footer-bottom a { color: rgba(255,255,255,.6); }
.footer-bottom a:hover { color: #fff; }

/* ============ 内页横幅 / 面包屑 ============ */
.page-hero { background: var(--green-50); border-bottom: 1px solid var(--green-100); padding: 36px 0; }
.breadcrumb { font-size: 13px; color: var(--muted); margin-bottom: 10px; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--green-700); }
.breadcrumb span.sep { margin: 0 8px; color: #cbd5e1; }
.breadcrumb .cur { color: var(--green-800); }
.page-hero h1 { font-size: 28px; line-height: 1.35; }
.page-hero .page-desc { margin-top: 8px; font-size: 14px; color: var(--muted); max-width: 720px; }

/* ============ 列表页布局 ============ */
.page-layout { display: grid; grid-template-columns: 1fr 300px; gap: 40px; padding-top: 48px; padding-bottom: 8px; align-items: start; }

/* 文章行 */
.post-row { display: grid; grid-template-columns: 220px 1fr; gap: 22px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.post-row:first-child { padding-top: 0; }
.post-row .thumb { display: block; aspect-ratio: 16 / 10; border-radius: 8px; overflow: hidden; background: var(--green-50); }
.post-row .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
.post-row:hover .thumb img { transform: scale(1.04); }
.post-row h2, .post-row h3 { font-size: 18px; line-height: 1.5; }
.post-row h2 a, .post-row h3 a { color: var(--ink); }
.post-row h2 a:hover, .post-row h3 a:hover { color: var(--green-700); }
.post-row .intro { margin-top: 8px; font-size: 14px; color: var(--muted); }
.post-row .meta { margin-top: 12px; font-size: 13px; color: #9ca3af; display: flex; flex-wrap: wrap; gap: 16px; }
.post-row .meta svg { width: 14px; height: 14px; margin-right: 4px; vertical-align: -2px; }

/* 侧栏 */
.sidebar > section { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; margin-bottom: 22px; }
.sidebar h3 { font-size: 16px; margin-bottom: 14px; padding-bottom: 12px; border-bottom: 1px solid var(--green-100); position: relative; }
.sidebar h3::after { content: ""; position: absolute; left: 0; bottom: -1px; width: 40px; height: 2px; background: var(--green-600); }
.side-list li { padding: 9px 0; border-bottom: 1px dashed var(--line); }
.side-list li:last-child { border-bottom: 0; }
.side-list a { display: block; font-size: 14px; color: var(--ink-2); line-height: 1.55; }
.side-list a:hover { color: var(--green-700); }
.side-list .side-meta { display: block; font-size: 12px; color: #9ca3af; margin-top: 3px; }
.side-card { background: var(--green-50); border: 1px solid var(--green-100); border-radius: var(--radius); padding: 22px; margin-bottom: 22px; }
.side-card h3 { font-size: 16px; color: var(--green-900); margin-bottom: 8px; }
.side-card p { font-size: 13px; color: var(--ink-2); margin-bottom: 14px; }

/* 分页 */
.pagination { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; padding: 40px 0 8px; }
.pagination a, .pagination span {
  min-width: 38px; height: 38px; display: inline-flex; align-items: center; justify-content: center;
  padding: 0 12px; border: 1px solid var(--line); border-radius: 8px; font-size: 14px; color: var(--ink-2); background: #fff;
}
.pagination a:hover { border-color: var(--green-600); color: var(--green-700); }
.pagination .page-num-current { background: var(--green-600); border-color: var(--green-600); color: #fff; }
.pagination span.dots { border: 0; background: none; }

/* ============ 详情页 ============ */
.article-wrap { padding-top: 48px; padding-bottom: 8px; }
.article-main { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 40px 44px; }
.article-main > header { border-bottom: 1px solid var(--line); padding-bottom: 22px; margin-bottom: 26px; }
.article-main h1 { font-size: 26px; line-height: 1.45; }
.article-meta { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 14px; font-size: 13px; color: var(--muted); }
.article-meta svg { width: 14px; height: 14px; margin-right: 5px; vertical-align: -2px; color: var(--green-600); }
.article-body { font-size: 16px; color: var(--ink-2); overflow-wrap: break-word; }
.article-body p { margin: 0 0 18px; }
.article-body h2 { font-size: 21px; margin: 34px 0 16px; color: var(--ink); padding-left: 12px; border-left: 4px solid var(--green-600); }
.article-body h3 { font-size: 18px; margin: 28px 0 14px; color: var(--ink); }
.article-body img { border-radius: 8px; margin: 8px auto 20px; }
.article-body ul, .article-body ol { margin: 0 0 18px 22px; }
.article-body ul li { list-style: disc; margin-bottom: 8px; }
.article-body ol li { list-style: decimal; margin-bottom: 8px; }
.article-body blockquote {
  margin: 0 0 18px; padding: 14px 18px; background: var(--green-50);
  border-left: 4px solid var(--green-600); border-radius: 0 8px 8px 0; color: var(--green-900); font-size: 15px;
}
.article-body table { width: 100%; border-collapse: collapse; margin: 0 0 18px; font-size: 14px; }
.article-body table th, .article-body table td { border: 1px solid var(--line); padding: 9px 12px; text-align: left; }
.article-body table th { background: var(--bg-soft); }
.article-body strong { color: var(--ink); }
.article-tags { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 10px; }
.article-tags a {
  font-size: 13px; padding: 4px 14px; background: var(--green-50); border: 1px solid var(--green-100);
  border-radius: 999px; color: var(--green-800);
}
.article-tags a:hover { background: var(--green-600); color: #fff; }
.post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 30px; }
.post-nav a {
  display: block; padding: 14px 18px; border: 1px solid var(--line); border-radius: 8px; font-size: 14px; color: var(--ink-2);
}
.post-nav a:hover { border-color: var(--green-600); color: var(--green-700); }
.post-nav .dir { display: block; font-size: 12px; color: #9ca3af; margin-bottom: 4px; }
.post-nav .next { text-align: right; }

/* 相关推荐 */
.related { margin-top: 48px; }
.related > h2 { font-size: 22px; margin-bottom: 22px; padding-left: 12px; border-left: 4px solid var(--green-600); }
.related-card { display: flex; gap: 14px; padding: 14px; }
.related-card .thumb { flex: none; width: 108px; aspect-ratio: 16 / 11; border-radius: 6px; overflow: hidden; background: var(--green-50); }
.related-card .thumb img { width: 100%; height: 100%; object-fit: cover; }
.related-card h3 { font-size: 14px; line-height: 1.5; }
.related-card h3 a { color: var(--ink); display: block; }
.related-card h3 a:hover { color: var(--green-700); }
.related-card time { display: block; font-size: 12px; color: #9ca3af; margin-top: 6px; }

/* ============ 浮动按钮 ============ */
.float-btns { position: fixed; right: 18px; bottom: 90px; z-index: 90; display: flex; flex-direction: column; gap: 10px; }
.float-btns a {
  width: 46px; height: 46px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  background: #fff; border: 1px solid var(--line); color: var(--green-700); box-shadow: var(--shadow-lg);
  transition: all .2s;
}
.float-btns a:hover { background: var(--green-600); border-color: var(--green-600); color: #fff; }
.float-btns svg { width: 20px; height: 20px; }

/* 回到顶部显现 */
.to-top { opacity: 0; pointer-events: none; transition: opacity .25s; }
.to-top.show { opacity: 1; pointer-events: auto; }

/* ============ 响应式 ============ */
@media (max-width: 992px) {
  .hero-inner { grid-template-columns: 1fr; padding-top: 44px; padding-bottom: 52px; gap: 30px; }
  .hero-art { order: 2; }
  .hero-art svg { max-width: 250px; }
  .hero h1 { font-size: 32px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .split, .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .page-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .article-main { padding: 28px 22px; }

  .nav-toggle { display: block; }
  .main-nav {
    display: none; position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; align-items: stretch;
    background: #fff; border-bottom: 1px solid var(--line); box-shadow: var(--shadow-lg); padding: 10px 20px 18px; gap: 2px;
  }
  body.nav-open .main-nav { display: flex; }
  .main-nav > li > a { padding: 12px 8px; border-bottom: 1px solid var(--line); border-radius: 0; }
  .sub-nav {
    position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: 0; padding: 0 0 6px 16px;
  }
  .header-cta { margin: 14px 0 0; }
}

@media (max-width: 640px) {
  .section { padding: 52px 0; }
  .brand img { height: 30px; }
  .brand .brand-name { font-size: 16px; }
  .header-cta { margin-left: 8px; padding: 7px 12px; font-size: 13px; }
  .nav-toggle { width: 36px; }
  .nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { left: 7px; }
  .section-head { margin-bottom: 34px; }
  .section-head h2 { font-size: 24px; }
  .hero h1 { font-size: 27px; }
  .hero .hero-desc { font-size: 15px; }
  .hero-actions .btn { width: 100%; }
  .grid-4, .grid-3, .grid-2, .form-row { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(3) { border-left: 0; }
  .stat-item:nth-child(n+3) { border-top: 1px solid var(--line); }
  .post-row { grid-template-columns: 1fr; gap: 14px; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; padding: 40px 0 28px; }
  .footer-bottom { justify-content: center; text-align: center; }
  .page-hero h1 { font-size: 23px; }
  .article-main h1 { font-size: 21px; }
  .post-nav { grid-template-columns: 1fr; }
  .post-nav .next { text-align: left; }
  .float-btns { bottom: 20px; }
}