/* ============================================================
   健康生活网站 - 主样式文件
   无CDN依赖，全部本地化
   ============================================================ */

/* ---------- CSS变量 ---------- */
:root {
  --primary: #2eaa6e;
  --primary-dark: #1f8a55;
  --primary-light: #e8f8f0;
  --secondary: #ff7043;
  --accent: #0091ea;
  --text-dark: #1a2332;
  --text-body: #3d4d5c;
  --text-muted: #8a99aa;
  --border: #e2ecf3;
  --bg-light: #f5fafd;
  --bg-white: #ffffff;
  --shadow-sm: 0 2px 8px rgba(46,170,110,.08);
  --shadow-md: 0 6px 24px rgba(46,170,110,.12);
  --shadow-lg: 0 12px 40px rgba(46,170,110,.16);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: all .3s cubic-bezier(.4,0,.2,1);
  --font-main: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'SimHei', sans-serif;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  color: var(--text-body);
  background: var(--bg-white);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; outline: none; }
input, textarea, select { outline: none; font-family: var(--font-main); }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section-title {
  position: relative;
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--text-dark);
  padding-left: 16px;
  margin-bottom: 28px;
}
.section-title::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 4px; height: 70%;
  background: linear-gradient(180deg, var(--primary), var(--primary-dark));
  border-radius: 2px;
}
.section-title span { color: var(--primary); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 11px 28px;
  border-radius: var(--radius-sm);
  font-size: .95rem;
  font-weight: 600;
  transition: var(--transition);
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 4px 14px rgba(46,170,110,.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(46,170,110,.45);
  color: #fff;
}
.btn-outline {
  border: 2px solid var(--primary);
  color: var(--primary);
  background: transparent;
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}

.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 600;
  background: var(--primary-light);
  color: var(--primary);
}

/* ---------- 内联SVG图标（用作伪元素背景）---------- */
.icon { display: inline-block; width: 1em; height: 1em; vertical-align: -.125em; }

/* ---------- Header / 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0; z-index: 1000;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
}
.logo-text { font-size: 1.3rem; font-weight: 800; color: var(--text-dark); }
.logo-text em { color: var(--primary); font-style: normal; }

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: .92rem;
  font-weight: 500;
  color: var(--text-body);
  position: relative;
  transition: var(--transition);
}
.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 4px; left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 60%; height: 2px;
  background: var(--primary);
  border-radius: 1px;
  transition: var(--transition);
}
.main-nav a:hover,
.main-nav a.active { color: var(--primary); }
.main-nav a:hover::after,
.main-nav a.active::after { transform: translateX(-50%) scaleX(1); }

.header-search {
  display: flex;
  align-items: center;
  background: var(--bg-light);
  border: 1.5px solid var(--border);
  border-radius: 24px;
  padding: 6px 16px;
  gap: 8px;
  transition: var(--transition);
}
.header-search:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(46,170,110,.12);
}
.header-search input {
  border: none;
  background: transparent;
  font-size: .88rem;
  color: var(--text-body);
  width: 160px;
}
.header-search input::placeholder { color: var(--text-muted); }
.header-search button {
  background: none;
  color: var(--text-muted);
  font-size: 1rem;
  padding: 0;
}
.header-search button:hover { color: var(--primary); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---------- Hero Banner ---------- */
.hero-banner {
  position: relative;
  overflow: hidden;
  min-height: 540px;
  background: linear-gradient(135deg, #0f3d2a 0%, #1a6944 40%, #2eaa6e 100%);
}
.hero-bg-pattern {
  position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(255,255,255,.04) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255,255,255,.06) 0%, transparent 40%);
  pointer-events: none;
}
.hero-shapes {
  position: absolute; inset: 0; overflow: hidden; pointer-events: none;
}
.hero-shape {
  position: absolute;
  border-radius: 50%;
  opacity: .08;
  background: #fff;
}
.hero-shape:nth-child(1) { width: 400px; height: 400px; top: -100px; right: -80px; }
.hero-shape:nth-child(2) { width: 250px; height: 250px; bottom: -60px; left: 10%; }
.hero-shape:nth-child(3) { width: 120px; height: 120px; top: 40%; right: 30%; }

.hero-content-wrap {
  position: relative; z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 40px;
  padding: 80px 0;
}
.hero-text { color: #fff; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.25);
  backdrop-filter: blur(6px);
  border-radius: 20px;
  padding: 6px 14px;
  font-size: .8rem;
  font-weight: 600;
  color: rgba(255,255,255,.9);
  margin-bottom: 20px;
}
.hero-badge .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #7dffb6;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .6; transform: scale(1.3); }
}
.hero-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 18px;
  letter-spacing: -.02em;
}
.hero-title span {
  color: #7dffb6;
  position: relative;
}
.hero-desc {
  font-size: 1.05rem;
  color: rgba(255,255,255,.8);
  margin-bottom: 32px;
  max-width: 440px;
  line-height: 1.8;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-hero {
  padding: 13px 32px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 700;
  transition: var(--transition);
}
.btn-hero-main {
  background: #fff;
  color: var(--primary-dark);
  box-shadow: 0 6px 20px rgba(0,0,0,.15);
}
.btn-hero-main:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0,0,0,.2);
  color: var(--primary-dark);
}
.btn-hero-ghost {
  background: rgba(255,255,255,.12);
  color: #fff;
  border: 2px solid rgba(255,255,255,.3);
}
.btn-hero-ghost:hover {
  background: rgba(255,255,255,.22);
  color: #fff;
}

.hero-stats {
  display: flex;
  gap: 28px;
  margin-top: 36px;
}
.hero-stat { text-align: center; }
.hero-stat-num {
  font-size: 1.6rem;
  font-weight: 800;
  color: #7dffb6;
  display: block;
  line-height: 1.2;
}
.hero-stat-label {
  font-size: .78rem;
  color: rgba(255,255,255,.65);
}

.hero-cards {
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: 16px;
}
.hero-card {
  background: rgba(255,255,255,.1);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  color: #fff;
  transition: var(--transition);
}
.hero-card:hover {
  background: rgba(255,255,255,.16);
  transform: translateX(4px);
}
.hero-card-top {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.hero-card-icon {
  width: 44px; height: 44px; flex-shrink: 0;
  background: rgba(255,255,255,.15);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
}
.hero-card-title { font-size: 1rem; font-weight: 700; margin-bottom: 4px; }
.hero-card-desc { font-size: .82rem; color: rgba(255,255,255,.7); line-height: 1.6; }
.hero-card-link {
  display: inline-block;
  margin-top: 10px;
  font-size: .8rem;
  color: #7dffb6;
  font-weight: 600;
}
.hero-card-link:hover { color: #fff; }

/* ---------- 分类导航区 ---------- */
.categories-section {
  background: var(--bg-white);
  padding: 60px 0 50px;
}
.cat-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
.cat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 22px 12px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border);
  background: var(--bg-white);
  transition: var(--transition);
  cursor: pointer;
}
.cat-item:hover {
  border-color: var(--primary);
  background: var(--primary-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.cat-item:hover .cat-icon { transform: scale(1.1); }
.cat-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
  transition: var(--transition);
}
.cat-name { font-size: .9rem; font-weight: 600; color: var(--text-dark); }
.cat-count { font-size: .75rem; color: var(--text-muted); }

/* 分类颜色 */
.cat-item:nth-child(1) .cat-icon { background: #e8f8f0; }
.cat-item:nth-child(2) .cat-icon { background: #fff3e0; }
.cat-item:nth-child(3) .cat-icon { background: #fce4ec; }
.cat-item:nth-child(4) .cat-icon { background: #e3f2fd; }
.cat-item:nth-child(5) .cat-icon { background: #f3e5f5; }
.cat-item:nth-child(6) .cat-icon { background: #e0f7fa; }

/* ---------- 主要内容区（带侧栏）---------- */
.main-content-section {
  padding: 60px 0;
  background: var(--bg-light);
}
.content-with-sidebar {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 30px;
  align-items: start;
}

/* ---------- 文章卡片（带缩略图）---------- */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 30px;
}
.article-card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.article-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: rgba(46,170,110,.3);
}
.article-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}
.article-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.article-card:hover .article-thumb img { transform: scale(1.06); }
.article-thumb-tag {
  position: absolute;
  top: 10px; left: 10px;
}
.article-body { padding: 18px; flex: 1; display: flex; flex-direction: column; }
.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .78rem;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.article-meta .author { display: flex; align-items: center; gap: 4px; }
.article-meta .date { display: flex; align-items: center; gap: 4px; }
.article-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.article-title:hover { color: var(--primary); }
.article-excerpt {
  font-size: .85rem;
  color: var(--text-muted);
  line-height: 1.7;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.article-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: .8rem;
}
.read-more {
  color: var(--primary);
  font-weight: 600;
  display: flex; align-items: center; gap: 4px;
}
.read-more:hover { gap: 8px; }
.article-views { color: var(--text-muted); display: flex; align-items: center; gap: 4px; }

/* 精选横幅文章 */
.featured-article {
  grid-column: 1 / -1;
  flex-direction: row;
  background: linear-gradient(135deg, var(--text-dark), #2d3f52);
  color: #fff;
  border: none;
}
.featured-article .article-thumb { flex: 0 0 42%; aspect-ratio: auto; }
.featured-article .article-body { padding: 32px; }
.featured-article .article-title { color: #fff; font-size: 1.25rem; -webkit-line-clamp: 3; }
.featured-article .article-excerpt { color: rgba(255,255,255,.7); -webkit-line-clamp: 3; }
.featured-article .article-meta { color: rgba(255,255,255,.55); }
.featured-article .article-footer { border-color: rgba(255,255,255,.15); }
.featured-article .article-views { color: rgba(255,255,255,.5); }
.featured-article .read-more { color: #7dffb6; }
.featured-label {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,112,67,.9);
  color: #fff;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: .75rem; font-weight: 700;
  margin-bottom: 12px;
}

/* ---------- 侧边栏 ---------- */
.sidebar { display: flex; flex-direction: column; gap: 24px; }
.sidebar-widget {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  overflow: hidden;
}
.widget-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-light);
}
.widget-title {
  font-size: .95rem; font-weight: 700; color: var(--text-dark);
  display: flex; align-items: center; gap: 8px;
}
.widget-title::before {
  content: '';
  width: 3px; height: 16px;
  background: var(--primary);
  border-radius: 2px;
  display: block;
}
.widget-more { font-size: .8rem; color: var(--primary); font-weight: 600; }
.widget-body { padding: 16px 20px; }

/* 热门文章侧边栏 */
.hot-list { display: flex; flex-direction: column; gap: 14px; }
.hot-item {
  display: flex; align-items: flex-start; gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--border);
}
.hot-item:last-child { padding-bottom: 0; border-bottom: none; }
.hot-rank {
  width: 24px; height: 24px; flex-shrink: 0;
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: .75rem; font-weight: 800;
  background: var(--bg-light);
  color: var(--text-muted);
}
.hot-item:nth-child(1) .hot-rank { background: #ff6b35; color: #fff; }
.hot-item:nth-child(2) .hot-rank { background: #ff9f40; color: #fff; }
.hot-item:nth-child(3) .hot-rank { background: #ffd166; color: #7a5c00; }
.hot-text { flex: 1; }
.hot-title {
  font-size: .88rem; font-weight: 600; color: var(--text-dark);
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 4px;
}
.hot-title:hover { color: var(--primary); }
.hot-meta { font-size: .75rem; color: var(--text-muted); }

/* 标签云 */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-cloud a {
  padding: 5px 12px;
  border-radius: 20px;
  font-size: .8rem;
  font-weight: 500;
  border: 1.5px solid var(--border);
  color: var(--text-body);
  transition: var(--transition);
}
.tag-cloud a:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* ---------- 健康贴士区块 ---------- */
.tips-section {
  padding: 60px 0;
  background: var(--bg-white);
}
.tips-header {
  display: flex; align-items: flex-end; justify-content: space-between;
  margin-bottom: 36px;
}
.tips-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.tip-card {
  background: var(--bg-white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 22px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.tip-card::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transition: var(--transition);
}
.tip-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-5px);
  border-color: var(--primary);
}
.tip-card:hover::before { transform: scaleX(1); }
.tip-icon {
  width: 60px; height: 60px;
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px;
  margin: 0 auto 16px;
  transition: var(--transition);
}
.tip-card:hover .tip-icon { transform: scale(1.12) rotate(5deg); }
.tip-card:nth-child(1) .tip-icon { background: #e8f8f0; }
.tip-card:nth-child(2) .tip-icon { background: #fff8e1; }
.tip-card:nth-child(3) .tip-icon { background: #fce4ec; }
.tip-card:nth-child(4) .tip-icon { background: #e3f2fd; }
.tip-title { font-size: 1.05rem; font-weight: 700; color: var(--text-dark); margin-bottom: 10px; }
.tip-desc { font-size: .85rem; color: var(--text-muted); line-height: 1.75; }

/* ---------- 无缩略图文章列表（双/三列）---------- */
.no-thumb-section {
  padding: 60px 0;
  background: var(--bg-light);
}
.no-thumb-header {
  display: flex; align-items: flex-end; justify-content: space-between;
  margin-bottom: 30px;
}
.col-tabs {
  display: flex; gap: 8px;
}
.col-tab {
  padding: 6px 16px;
  border-radius: var(--radius-sm);
  font-size: .82rem;
  font-weight: 600;
  border: 1.5px solid var(--border);
  color: var(--text-muted);
  background: var(--bg-white);
  cursor: pointer;
  transition: var(--transition);
}
.col-tab.active, .col-tab:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.no-thumb-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.no-thumb-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.no-thumb-grid-2.hidden, .no-thumb-grid-3.hidden { display: none; }

.no-thumb-card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 20px;
  border: 1px solid var(--border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.no-thumb-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}
.no-thumb-card-top {
  display: flex; align-items: center; justify-content: space-between;
}
.no-thumb-title {
  font-size: .95rem; font-weight: 700;
  color: var(--text-dark); line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.no-thumb-title:hover { color: var(--primary); }
.no-thumb-excerpt {
  font-size: .82rem; color: var(--text-muted); line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.no-thumb-meta {
  display: flex; align-items: center; gap: 12px;
  font-size: .75rem; color: var(--text-muted);
  border-top: 1px dashed var(--border);
  padding-top: 10px;
}

/* ---------- 数据统计区 ---------- */
.stats-section {
  padding: 60px 0;
  background: linear-gradient(135deg, var(--text-dark) 0%, #2d3f52 100%);
  position: relative;
  overflow: hidden;
}
.stats-section::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(46,170,110,.15) 0%, transparent 60%);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  position: relative; z-index: 1;
}
.stat-item { text-align: center; }
.stat-num {
  font-size: 2.5rem;
  font-weight: 800;
  color: #7dffb6;
  display: block;
  line-height: 1.2;
  margin-bottom: 6px;
}
.stat-label { font-size: .9rem; color: rgba(255,255,255,.7); }
.stat-icon { font-size: 2rem; margin-bottom: 10px; display: block; }

/* ---------- 表单提交模块 ---------- */
.form-section {
  padding: 70px 0;
  background: var(--bg-white);
}
.form-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.form-info {}
.form-info .section-title { margin-bottom: 16px; }
.form-info p {
  color: var(--text-muted);
  font-size: .95rem;
  line-height: 1.8;
  margin-bottom: 24px;
}
.form-features { display: flex; flex-direction: column; gap: 14px; }
.form-feature {
  display: flex; align-items: center; gap: 12px;
}
.form-feature-icon {
  width: 36px; height: 36px; flex-shrink: 0;
  background: var(--primary-light);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
}
.form-feature-text { font-size: .9rem; color: var(--text-body); }

.contact-form {
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1.5px solid var(--border);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group.full { grid-column: 1 / -1; }
.form-label { font-size: .85rem; font-weight: 600; color: var(--text-dark); }
.form-control {
  padding: 11px 16px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border);
  background: var(--bg-white);
  font-size: .9rem;
  color: var(--text-body);
  transition: var(--transition);
  width: 100%;
}
.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(46,170,110,.1);
}
.form-control::placeholder { color: var(--text-muted); }
textarea.form-control { resize: vertical; min-height: 110px; }
.form-submit {
  margin-top: 6px;
  width: 100%;
  padding: 14px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  transition: var(--transition);
  box-shadow: 0 4px 14px rgba(46,170,110,.35);
}
.form-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(46,170,110,.45);
}

/* ---------- 友情链接 ---------- */
.links-section {
  padding: 40px 0;
  background: var(--bg-light);
  border-top: 1px solid var(--border);
}
.links-inner {
  display: flex; align-items: flex-start; gap: 30px;
}
.links-label {
  font-size: .9rem; font-weight: 700;
  color: var(--text-dark);
  white-space: nowrap;
  padding-top: 4px;
}
.links-list { display: flex; flex-wrap: wrap; gap: 10px; flex: 1; }
.links-list a {
  padding: 5px 14px;
  border-radius: var(--radius-sm);
  font-size: .82rem;
  border: 1px solid var(--border);
  color: var(--text-body);
  background: var(--bg-white);
  transition: var(--transition);
}
.links-list a:hover {
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--text-dark);
  color: rgba(255,255,255,.75);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-brand {}
.footer-logo {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 16px;
}
.footer-logo-icon {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
}
.footer-logo-text { font-size: 1.2rem; font-weight: 800; color: #fff; }
.footer-desc {
  font-size: .88rem;
  line-height: 1.8;
  color: rgba(255,255,255,.55);
  margin-bottom: 20px;
}
.footer-socials { display: flex; gap: 10px; }
.social-btn {
  width: 36px; height: 36px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,.15);
  display: flex; align-items: center; justify-content: center;
  font-size: 15px;
  color: rgba(255,255,255,.6);
  transition: var(--transition);
}
.social-btn:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.footer-col-title {
  font-size: .95rem; font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}
.footer-col-title::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 28px; height: 2px;
  background: var(--primary);
  border-radius: 1px;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  font-size: .85rem;
  color: rgba(255,255,255,.55);
  transition: var(--transition);
  display: flex; align-items: center; gap: 6px;
}
.footer-links a::before {
  content: '›';
  color: var(--primary);
  font-weight: 700;
}
.footer-links a:hover { color: #fff; padding-left: 4px; }

.footer-contact { display: flex; flex-direction: column; gap: 12px; }
.contact-item {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: .85rem; color: rgba(255,255,255,.55);
}
.contact-item-icon { font-size: 14px; margin-top: 2px; color: var(--primary); }

.footer-bottom {
  padding: 20px 0;
  display: flex; align-items: center; justify-content: space-between;
  font-size: .8rem;
  color: rgba(255,255,255,.35);
}
.footer-bottom-links { display: flex; gap: 16px; }
.footer-bottom-links a {
  color: rgba(255,255,255,.35);
  transition: var(--transition);
}
.footer-bottom-links a:hover { color: rgba(255,255,255,.7); }

/* ---------- 面包屑 ---------- */
.page-banner {
  background: linear-gradient(135deg, #0f3d2a, #1a6944);
  padding: 44px 0;
  position: relative;
  overflow: hidden;
}
.page-banner::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(46,170,110,.2) 0%, transparent 60%);
}
.page-banner-content { position: relative; z-index: 1; }
.page-banner-title {
  font-size: 1.8rem; font-weight: 800;
  color: #fff; margin-bottom: 10px;
}
.breadcrumb {
  display: flex; align-items: center; gap: 8px;
  font-size: .85rem; color: rgba(255,255,255,.6);
}
.breadcrumb a { color: rgba(255,255,255,.7); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb-sep { color: rgba(255,255,255,.35); }
.breadcrumb-current { color: #7dffb6; }

/* ---------- 分页 ---------- */
.pagination {
  display: flex; align-items: center; justify-content: center;
  gap: 8px;
  padding: 40px 0 20px;
}
.page-btn {
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: .9rem; font-weight: 600;
  border: 1.5px solid var(--border);
  color: var(--text-body);
  background: var(--bg-white);
  transition: var(--transition);
  cursor: pointer;
}
.page-btn:hover { border-color: var(--primary); color: var(--primary); }
.page-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.page-btn.prev, .page-btn.next { padding: 0 14px; width: auto; }

/* ---------- 列表页样式 ---------- */
.list-main { padding: 50px 0; background: var(--bg-light); }

.list-article-item {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  padding: 24px;
  display: flex;
  gap: 20px;
  margin-bottom: 16px;
  transition: var(--transition);
}
.list-article-item:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(46,170,110,.3);
  transform: translateX(4px);
}
.list-article-thumb {
  flex: 0 0 200px;
  height: 130px;
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.list-article-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.list-article-item:hover .list-article-thumb img { transform: scale(1.05); }
.list-article-body { flex: 1; display: flex; flex-direction: column; }
.list-article-title {
  font-size: 1.1rem; font-weight: 700;
  color: var(--text-dark); margin-bottom: 8px;
  line-height: 1.45;
}
.list-article-title:hover { color: var(--primary); }
.list-article-excerpt {
  font-size: .88rem; color: var(--text-muted);
  line-height: 1.75; flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.list-article-footer {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 14px;
  font-size: .8rem; color: var(--text-muted);
}
.list-article-tags { display: flex; gap: 6px; }
.list-article-tags .tag { font-size: .72rem; }

/* ---------- 文章详情页 ---------- */
.article-detail-section {
  padding: 50px 0;
  background: var(--bg-light);
}
.article-detail-wrap {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 30px;
  align-items: start;
}

.article-main {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  overflow: hidden;
}
.article-header { padding: 36px 36px 0; }
.article-detail-title {
  font-size: 1.8rem; font-weight: 800;
  color: var(--text-dark); line-height: 1.35;
  margin-bottom: 16px;
}
.article-detail-meta {
  display: flex; flex-wrap: wrap; align-items: center; gap: 16px;
  font-size: .82rem; color: var(--text-muted);
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.meta-item { display: flex; align-items: center; gap: 5px; }
.article-cover {
  width: 100%; margin: 24px 0 0;
  aspect-ratio: 16/7;
  overflow: hidden;
}
.article-cover img { width: 100%; height: 100%; object-fit: cover; }

.article-content {
  padding: 32px 36px;
  font-size: .95rem; color: var(--text-body);
  line-height: 1.9;
}
.article-content h2 {
  font-size: 1.3rem; font-weight: 700;
  color: var(--text-dark);
  margin: 28px 0 14px;
  padding-left: 12px;
  border-left: 3px solid var(--primary);
}
.article-content h3 {
  font-size: 1.1rem; font-weight: 700;
  color: var(--text-dark); margin: 22px 0 10px;
}
.article-content p { margin-bottom: 16px; }
.article-content ul, .article-content ol {
  padding-left: 20px;
  margin-bottom: 16px;
}
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li { margin-bottom: 6px; }
.article-content blockquote {
  border-left: 4px solid var(--primary);
  background: var(--primary-light);
  padding: 14px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 20px 0;
  color: var(--text-body);
}
.article-content strong { color: var(--text-dark); }
.article-content .tip-box {
  background: #e3f2fd;
  border: 1px solid #90caf9;
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin: 20px 0;
  display: flex; gap: 12px;
}
.article-content .tip-box-icon { font-size: 20px; flex-shrink: 0; }
.article-content .tip-box-text { font-size: .9rem; color: #1565c0; line-height: 1.7; }

/* 文章标签 */
.article-tags {
  padding: 0 36px 24px;
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  border-bottom: 1px solid var(--border);
}
.article-tags-label { font-size: .88rem; font-weight: 600; color: var(--text-dark); }

/* 文章分享 */
.article-share {
  padding: 20px 36px;
  display: flex; align-items: center; gap: 16px;
  border-bottom: 1px solid var(--border);
}
.article-share-label { font-size: .88rem; font-weight: 600; color: var(--text-dark); }
.share-btns { display: flex; gap: 8px; }
.share-btn {
  padding: 7px 16px;
  border-radius: var(--radius-sm);
  font-size: .8rem; font-weight: 600;
  border: 1.5px solid var(--border);
  color: var(--text-body);
  background: var(--bg-white);
  cursor: pointer;
  transition: var(--transition);
  display: flex; align-items: center; gap: 5px;
}
.share-btn:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* 上下篇 */
.article-nav {
  padding: 24px 36px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  border-bottom: 1px solid var(--border);
}
.article-nav-item {
  padding: 16px;
  background: var(--bg-light);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.article-nav-item:hover {
  border-color: var(--primary);
  background: var(--primary-light);
}
.article-nav-dir {
  font-size: .75rem; color: var(--text-muted); margin-bottom: 6px;
  display: flex; align-items: center; gap: 4px; font-weight: 600;
}
.article-nav-prev .article-nav-dir::before { content: '‹ '; color: var(--primary); }
.article-nav-next { text-align: right; }
.article-nav-next .article-nav-dir { justify-content: flex-end; }
.article-nav-next .article-nav-dir::after { content: ' ›'; color: var(--primary); }
.article-nav-title {
  font-size: .9rem; font-weight: 600; color: var(--text-dark); line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.article-nav-title:hover { color: var(--primary); }

/* 相关文章 & 最新文章 */
.related-section { padding: 24px 36px 36px; }
.related-title {
  font-size: 1rem; font-weight: 700; color: var(--text-dark);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 8px;
}
.related-title::before {
  content: '';
  width: 3px; height: 16px;
  background: var(--primary);
  border-radius: 2px;
}
.related-list { display: flex; flex-direction: column; gap: 12px; }
.related-item {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 10px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.related-item:hover { background: var(--bg-light); }
.related-num {
  width: 22px; height: 22px; flex-shrink: 0;
  background: var(--bg-light);
  border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  font-size: .72rem; font-weight: 700; color: var(--text-muted);
}
.related-item:nth-child(-n+3) .related-num { background: var(--primary-light); color: var(--primary); }
.related-item-title {
  font-size: .88rem; color: var(--text-body); line-height: 1.5;
  flex: 1;
}
.related-item-title:hover { color: var(--primary); }
.related-item-date { font-size: .75rem; color: var(--text-muted); white-space: nowrap; }

/* ---------- 滚动进度条 ---------- */
.read-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  z-index: 9999;
  transition: width .1s linear;
}

/* ---------- 回顶部 ---------- */
.back-to-top {
  position: fixed;
  bottom: 36px; right: 28px;
  width: 44px; height: 44px;
  background: var(--primary);
  color: #fff;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  z-index: 999;
  border: none;
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover { background: var(--primary-dark); transform: translateY(-3px); }

/* ---------- 通知条 ---------- */
.notice-bar {
  background: linear-gradient(90deg, var(--primary-dark), var(--primary));
  color: #fff;
  padding: 8px 0;
  font-size: .82rem;
}
.notice-inner {
  display: flex; align-items: center; gap: 12px;
}
.notice-label {
  background: rgba(255,255,255,.2);
  padding: 2px 10px;
  border-radius: 12px;
  font-weight: 700;
  font-size: .78rem;
  white-space: nowrap;
}
.notice-text { flex: 1; overflow: hidden; }
.notice-scroll {
  white-space: nowrap;
  animation: marquee 22s linear infinite;
  display: inline-block;
}
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.notice-close {
  background: none; color: rgba(255,255,255,.7);
  font-size: 16px; padding: 2px 6px;
  flex-shrink: 0;
  border: none; cursor: pointer;
}
.notice-close:hover { color: #fff; }

/* ---------- 内页表单（简化）---------- */
.inner-form-section {
  padding: 50px 0;
  background: linear-gradient(135deg, #0f3d2a 0%, #1a6944 60%, #2eaa6e 100%);
}
.inner-form-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}
.inner-form-text h2 {
  font-size: 1.6rem; font-weight: 800;
  color: #fff; margin-bottom: 10px;
}
.inner-form-text p {
  color: rgba(255,255,255,.7);
  font-size: .95rem;
}
.inner-form {
  display: flex; gap: 0;
  flex: 0 0 480px;
  overflow: hidden;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
}
.inner-form input {
  flex: 1;
  padding: 14px 18px;
  border: none;
  font-size: .95rem;
  background: #fff;
  color: var(--text-body);
}
.inner-form input::placeholder { color: var(--text-muted); }
.inner-form button {
  padding: 14px 28px;
  background: var(--secondary);
  color: #fff;
  font-size: .95rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.inner-form button:hover { background: #e64a19; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .cat-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .content-with-sidebar { grid-template-columns: 1fr; }
  .sidebar { grid-row: -1; }
  .hero-content-wrap { grid-template-columns: 1fr; padding: 60px 0; }
  .hero-cards { grid-template-columns: 1fr 1fr; grid-template-rows: 1fr; }
  .article-detail-wrap { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .main-nav { display: none; }
  .main-nav.open {
    display: flex; flex-direction: column;
    position: absolute; top: 70px; left: 0; right: 0;
    background: #fff;
    padding: 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    z-index: 999;
  }
  .hamburger { display: flex; }
  .header-inner { position: relative; }
  .header-search { display: none; }

  .hero-content-wrap { grid-template-columns: 1fr; }
  .hero-cards { display: none; }
  .hero-stats { gap: 16px; }

  .cat-grid { grid-template-columns: repeat(3, 1fr); }
  .articles-grid { grid-template-columns: 1fr; }
  .featured-article { flex-direction: column; }
  .featured-article .article-thumb { flex: 0 0 200px; width: 100%; }

  .tips-grid { grid-template-columns: repeat(2, 1fr); }
  .no-thumb-grid-2, .no-thumb-grid-3 { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .form-wrapper { grid-template-columns: 1fr; gap: 30px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .inner-form-wrap { flex-direction: column; }
  .inner-form { flex: none; width: 100%; }
  .article-nav { grid-template-columns: 1fr; }
  .list-article-item { flex-direction: column; }
  .list-article-thumb { flex: none; width: 100%; height: 200px; }
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .tips-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-wrap: wrap; }
}