/* ===== 暗网深度内容发现平台 - 主样式文件 ===== */
/* nljb6a.cn */

/* ===== 重置与基础 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: #1a1a1a;
  background: #fff;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: color 0.2s; }
a:hover { color: #1a7a3c; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ===== 干扰标签完全隐藏 ===== */
.noise-wrap,
.noise-wrap * {
  display: none !important;
  visibility: hidden !important;
  height: 0 !important;
  width: 0 !important;
  overflow: hidden !important;
  position: absolute !important;
  left: -9999px !important;
  top: -9999px !important;
  font-size: 0 !important;
  line-height: 0 !important;
  pointer-events: none !important;
  opacity: 0 !important;
}

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

/* ===== 顶部公告 ===== */
.top-bar {
  background: linear-gradient(90deg, #0f5a2c, #1a7a3c, #2ea855);
  color: #fff;
  text-align: center;
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 500;
}
.top-bar a { color: #a8f0c0; text-decoration: underline; }
.top-bar a:hover { color: #fff; }

/* ===== 头部导航 ===== */
.header {
  background: #fff;
  box-shadow: 0 2px 20px rgba(0,0,0,0.08);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 24px;
  height: 68px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
.logo img { width: 44px; height: 44px; border-radius: 10px; object-fit: cover; }
.logo-text {
  font-size: 22px;
  font-weight: 900;
  color: #1a7a3c;
  letter-spacing: -0.5px;
}
.logo-sub {
  display: block;
  font-size: 11px;
  color: #888;
  font-weight: 400;
  margin-top: -2px;
}
.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.nav > a, .nav-dropdown > a {
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  color: #333;
  transition: all 0.2s;
  white-space: nowrap;
}
.nav > a:hover, .nav-dropdown > a:hover, .nav > a.active, .nav-dropdown > a.active {
  background: #f0faf4;
  color: #1a7a3c;
}
.nav-dropdown { position: relative; }
.dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.12);
  padding: 8px;
  min-width: 160px;
  z-index: 100;
  border: 1px solid #e8f5ee;
}
.nav-dropdown:hover .dropdown-menu { display: block; }
.dropdown-menu a {
  display: block;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 13px;
  color: #444;
  transition: 0.2s;
}
.dropdown-menu a:hover { background: #f0faf4; color: #1a7a3c; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  margin-left: auto;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #333;
  border-radius: 2px;
  transition: 0.3s;
}

/* ===== 搜索框 ===== */
.search-bar {
  background: #f0faf4;
  border-bottom: 1px solid #d4e8db;
  padding: 12px 0;
}
.search-inner { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.search-form {
  display: flex;
  gap: 0;
  max-width: 600px;
  margin-bottom: 8px;
}
.search-form input {
  flex: 1;
  padding: 10px 16px;
  border: 2px solid #d4e8db;
  border-right: none;
  border-radius: 8px 0 0 8px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
  background: #fff;
}
.search-form input:focus { border-color: #1a7a3c; }
.search-form button {
  padding: 10px 20px;
  background: #1a7a3c;
  color: #fff;
  border-radius: 0 8px 8px 0;
  font-size: 14px;
  font-weight: 700;
  transition: background 0.2s;
}
.search-form button:hover { background: #0f5a2c; }
.search-hot { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 12px; color: #888; }
.search-hot a { color: #1a7a3c; padding: 2px 8px; background: #fff; border-radius: 10px; border: 1px solid #d4e8db; transition: 0.2s; }
.search-hot a:hover { background: #1a7a3c; color: #fff; border-color: #1a7a3c; }

/* ===== 面包屑 ===== */
.breadcrumb { background: #f9fffe; border-bottom: 1px solid #e8f5ee; }
.breadcrumb-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px 20px;
  font-size: 13px;
  color: #888;
  display: flex;
  align-items: center;
  gap: 6px;
}
.breadcrumb-inner a { color: #1a7a3c; }
.breadcrumb-inner a:hover { text-decoration: underline; }
.breadcrumb-inner span { color: #ccc; }
.breadcrumb-inner strong { color: #333; }

/* ===== 页面Hero ===== */
.page-hero {
  background: linear-gradient(135deg, #0f5a2c 0%, #1a7a3c 50%, #2ea855 100%);
  color: #fff;
  padding: 48px 0;
  text-align: center;
}
.page-hero h1 { font-size: 32px; font-weight: 900; margin-bottom: 12px; }
.page-hero p { font-size: 16px; opacity: 0.85; max-width: 600px; margin: 0 auto; }

/* ===== Hero Banner ===== */
.hero-banner {
  position: relative;
  overflow: hidden;
  min-height: 520px;
  display: flex;
  align-items: center;
}
.hero-banner > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}
.hero-overlay {
  position: relative;
  z-index: 1;
  width: 100%;
  background: linear-gradient(90deg, rgba(10,40,20,0.88) 0%, rgba(10,40,20,0.65) 60%, rgba(10,40,20,0.2) 100%);
  padding: 60px 0;
}
.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  max-width: 680px;
}
.hero-badge {
  display: inline-block;
  background: rgba(46,168,85,0.3);
  color: #a8f0c0;
  border: 1px solid rgba(168,240,192,0.4);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
}
.hero-content h1 {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 900;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 12px;
  text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}
.hero-subtitle {
  font-size: 16px;
  color: rgba(255,255,255,0.85);
  line-height: 1.8;
  margin-bottom: 28px;
}
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 36px; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #2ea855;
  color: #fff;
  padding: 12px 28px;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 700;
  transition: all 0.2s;
  box-shadow: 0 4px 16px rgba(46,168,85,0.4);
}
.btn-primary:hover { background: #1a7a3c; transform: translateY(-2px); color: #fff; box-shadow: 0 8px 24px rgba(46,168,85,0.5); }
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  color: #fff;
  padding: 12px 28px;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 700;
  border: 2px solid rgba(255,255,255,0.6);
  transition: all 0.2s;
}
.btn-outline:hover { background: rgba(255,255,255,0.1); color: #fff; }
.hero-stats { display: flex; gap: 24px; flex-wrap: wrap; }
.hero-stat { text-align: center; }
.hero-stat .num { display: block; font-size: 22px; font-weight: 900; color: #a8f0c0; }
.hero-stat .label { font-size: 12px; color: rgba(255,255,255,0.7); }

/* ===== 统计行 ===== */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 20px;
}
.stat-item {
  text-align: center;
  padding: 24px 16px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(26,122,60,0.08);
  border: 1px solid #e8f5ee;
}
.stat-num {
  display: block;
  font-size: 28px;
  font-weight: 900;
  color: #1a7a3c;
  margin-bottom: 6px;
}
.stat-label { font-size: 13px; color: #666; }

/* ===== Section ===== */
.section { padding: 60px 0; }
.section-alt { background: #f9fffe; }
.section-dark {
  background: linear-gradient(135deg, #0d1b2a 0%, #0f2d1a 100%);
  color: #fff;
}
.section-header { text-align: center; margin-bottom: 40px; }
.section-tag {
  display: inline-block;
  background: #f0faf4;
  color: #1a7a3c;
  border: 1px solid #d4e8db;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.section-header h2 {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 900;
  color: #1a1a1a;
  margin-bottom: 12px;
  line-height: 1.3;
}
.section-dark .section-header h2 { color: #fff; }
.section-header p { font-size: 15px; color: #666; max-width: 600px; margin: 0 auto; }
.section-dark .section-header p { color: rgba(255,255,255,0.7); }
.divider {
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, #1a7a3c, #2ea855);
  border-radius: 2px;
  margin: 16px auto 0;
}

/* ===== 公告栏 ===== */
.notice-bar {
  background: linear-gradient(90deg, #f0faf4, #e8f5ee);
  border: 1px solid #d4e8db;
  border-left: 4px solid #1a7a3c;
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 13px;
  color: #1a7a3c;
  margin-bottom: 28px;
  font-weight: 500;
}

/* ===== 视频卡片 ===== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.video-card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  border: 1px solid #e8e8e8;
  transition: all 0.3s;
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(26,122,60,0.15);
  border-color: #d4e8db;
}
.video-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: #111;
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}
.video-card:hover .video-thumb img { transform: scale(1.05); }
.play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0);
  transition: background 0.3s;
}
.video-card:hover .play-btn { background: rgba(0,0,0,0.45); }
.play-icon {
  width: 56px;
  height: 56px;
  background: rgba(255,255,255,0.95);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #1a7a3c;
  transform: scale(0);
  transition: transform 0.3s cubic-bezier(0.34,1.56,0.64,1);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  padding-left: 4px;
}
.video-card:hover .play-icon { transform: scale(1); }
.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
}
.video-quality {
  position: absolute;
  top: 8px;
  left: 8px;
  background: #1a7a3c;
  color: #fff;
  font-size: 10px;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 4px;
  letter-spacing: 0.5px;
}
.video-info { padding: 16px; }
.video-info h3 {
  font-size: 14px;
  font-weight: 700;
  color: #1a1a1a;
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex;
  gap: 10px;
  font-size: 12px;
  color: #888;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.video-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 6px; }
.video-author { font-size: 11px; color: #aaa; font-weight: 400; margin-top: 4px; }
.tag {
  background: #f0faf4;
  color: #1a7a3c;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 10px;
  border: 1px solid #d4e8db;
  font-weight: 600;
}

/* ===== 功能卡片 ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.feature-card {
  background: #fff;
  border-radius: 12px;
  padding: 28px 24px;
  border: 1px solid #e8f5ee;
  box-shadow: 0 4px 20px rgba(26,122,60,0.06);
  transition: all 0.3s;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(26,122,60,0.12);
  border-color: #1a7a3c;
}
.feature-icon { font-size: 36px; margin-bottom: 14px; display: block; }
.feature-card h3 { font-size: 17px; font-weight: 800; color: #1a1a1a; margin-bottom: 6px; }
.feature-card h4 { font-size: 13px; color: #1a7a3c; font-weight: 600; margin-bottom: 8px; }
.feature-card p { font-size: 13px; color: #666; line-height: 1.7; }
.feature-card h5 { font-size: 12px; color: #888; font-weight: 400; margin-top: 8px; }

/* ===== AI卡片 ===== */
.ai-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.ai-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 12px;
  padding: 28px 24px;
  transition: all 0.3s;
}
.ai-card:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(168,240,192,0.4);
  transform: translateY(-4px);
}
.ai-icon { font-size: 36px; margin-bottom: 14px; display: block; }
.ai-card h3 { font-size: 17px; font-weight: 800; color: #fff; margin-bottom: 6px; }
.ai-card h4 { font-size: 13px; color: #a8f0c0; font-weight: 600; margin-bottom: 8px; }
.ai-card p { font-size: 13px; color: rgba(255,255,255,0.7); line-height: 1.7; margin-bottom: 14px; }
.ai-badge {
  display: inline-block;
  background: rgba(46,168,85,0.25);
  color: #a8f0c0;
  border: 1px solid rgba(168,240,192,0.3);
  padding: 3px 10px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 700;
}

/* ===== 专家卡片 ===== */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.expert-card {
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  border: 1px solid #e8e8e8;
  transition: all 0.3s;
}
.expert-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(26,122,60,0.12);
  border-color: #d4e8db;
}
.expert-photo { width: 100%; height: 200px; object-fit: cover; }
.expert-info { padding: 20px; }
.expert-name { font-size: 18px; font-weight: 900; color: #1a1a1a; margin-bottom: 4px; }
.expert-title { font-size: 13px; color: #1a7a3c; font-weight: 600; margin-bottom: 10px; }
.expert-desc { font-size: 13px; color: #555; line-height: 1.7; margin-bottom: 12px; }
.expert-awards { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 8px; }
.award-badge {
  background: linear-gradient(135deg, #f0faf4, #e0f5ea);
  color: #1a7a3c;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 8px;
  font-weight: 700;
  border: 1px solid #d4e8db;
}

/* ===== 文章卡片 ===== */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.article-card {
  background: #fff;
  border-radius: 12px;
  padding: 24px;
  border: 1px solid #e8f5ee;
  box-shadow: 0 4px 16px rgba(26,122,60,0.06);
  transition: all 0.3s;
}
.article-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(26,122,60,0.12);
  border-color: #1a7a3c;
}
.article-tag {
  display: inline-block;
  background: #f0faf4;
  color: #1a7a3c;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 10px;
  border: 1px solid #d4e8db;
  margin-bottom: 12px;
}
.article-card h3 {
  font-size: 16px;
  font-weight: 800;
  color: #1a1a1a;
  line-height: 1.5;
  margin-bottom: 10px;
}
.article-card h3 a { color: #1a1a1a; }
.article-card h3 a:hover { color: #1a7a3c; }
.article-excerpt {
  font-size: 13px;
  color: #555;
  line-height: 1.8;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.article-meta {
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: #888;
  flex-wrap: wrap;
}

/* ===== 产品卡片 ===== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.product-card {
  background: #fff;
  border-radius: 12px;
  padding: 24px;
  border: 1px solid #e8f5ee;
  box-shadow: 0 4px 16px rgba(26,122,60,0.06);
  transition: all 0.3s;
  position: relative;
  text-align: center;
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(26,122,60,0.12);
  border-color: #1a7a3c;
}
.product-icon { font-size: 40px; margin-bottom: 12px; }
.product-tag {
  position: absolute;
  top: 12px;
  right: 12px;
  background: #1a7a3c;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 8px;
}
.product-card h3 { font-size: 16px; font-weight: 800; color: #1a1a1a; margin-bottom: 8px; }
.product-card p { font-size: 13px; color: #666; line-height: 1.6; margin-bottom: 14px; }
.product-price { font-size: 20px; font-weight: 900; color: #e53e3e; margin-bottom: 14px; }

/* ===== 合作品牌 ===== */
.partner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
}
.partner-item {
  background: #fff;
  border: 1px solid #e8f5ee;
  border-radius: 10px;
  padding: 14px;
  text-align: center;
  font-size: 13px;
  font-weight: 700;
  color: #333;
  transition: all 0.2s;
}
.partner-item:hover {
  background: #f0faf4;
  border-color: #1a7a3c;
  color: #1a7a3c;
  transform: translateY(-2px);
}

/* ===== 评价卡片 ===== */
.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.review-card {
  background: #fff;
  border-radius: 12px;
  padding: 24px;
  border: 1px solid #e8f5ee;
  box-shadow: 0 4px 16px rgba(26,122,60,0.06);
  transition: 0.3s;
}
.review-card:hover { transform: translateY(-4px); box-shadow: 0 8px 30px rgba(26,122,60,0.12); }
.review-stars { color: #f5a623; font-size: 16px; margin-bottom: 12px; }
.review-text { font-size: 14px; color: #444; line-height: 1.8; margin-bottom: 16px; font-style: italic; }
.reviewer { display: flex; align-items: center; gap: 12px; }
.reviewer-avatar {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #1a7a3c, #2ea855);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 900;
  flex-shrink: 0;
}
.reviewer-name { font-size: 14px; font-weight: 700; color: #1a1a1a; }
.reviewer-meta { font-size: 12px; color: #888; }

/* ===== 联系区域 ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.contact-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 16px;
  padding: 14px 16px;
  background: #f9fffe;
  border-radius: 10px;
  border: 1px solid #e8f5ee;
}
.contact-icon { font-size: 20px; flex-shrink: 0; }
.contact-label { font-size: 12px; color: #888; margin-bottom: 2px; }
.contact-val { font-size: 14px; font-weight: 700; color: #1a1a1a; }
.qr-row { display: flex; gap: 16px; margin-top: 16px; }
.qr-box { text-align: center; }
.qr-box img { width: 90px; height: 90px; border-radius: 8px; border: 1px solid #d4e8db; }
.qr-box p { font-size: 12px; color: #666; margin-top: 6px; }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1px solid #e8f5ee;
  border-radius: 10px;
  margin-bottom: 12px;
  overflow: hidden;
  background: #fff;
}
.faq-q {
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 700;
  color: #1a1a1a;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.2s;
  user-select: none;
}
.faq-q::after { content: '+'; font-size: 20px; color: #1a7a3c; transition: transform 0.3s; flex-shrink: 0; }
.faq-item.open .faq-q { background: #f0faf4; color: #1a7a3c; }
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-item.open .faq-a { max-height: 300px; }
.faq-a > div {
  padding: 16px 20px;
  font-size: 14px;
  color: #555;
  line-height: 1.8;
  border-top: 1px solid #e8f5ee;
}

/* ===== 分享按钮 ===== */
.share-bar { display: flex; gap: 12px; flex-wrap: wrap; }
.share-btn {
  padding: 10px 20px;
  border-radius: 24px;
  font-size: 13px;
  font-weight: 700;
  transition: all 0.2s;
}
.share-wechat { background: #07c160; color: #fff; }
.share-wechat:hover { background: #06a050; transform: translateY(-2px); }
.share-weibo { background: #e6162d; color: #fff; }
.share-weibo:hover { background: #c41025; transform: translateY(-2px); }
.share-douyin { background: #010101; color: #fff; }
.share-douyin:hover { background: #333; transform: translateY(-2px); }
.share-bilibili { background: #00a1d6; color: #fff; }
.share-bilibili:hover { background: #0080b0; transform: translateY(-2px); }

/* ===== 标签云 ===== */
.footer-tags {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  margin-bottom: 8px;
}
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-cloud a {
  background: rgba(255,255,255,0.06);
  color: rgba(255,255,255,0.6);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  border: 1px solid rgba(255,255,255,0.1);
  transition: all 0.2s;
}
.tag-cloud a:hover { background: rgba(168,240,192,0.15); color: #a8f0c0; border-color: rgba(168,240,192,0.3); }

/* ===== 按钮 ===== */
.btn-sm {
  display: inline-block;
  padding: 7px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 700;
  transition: all 0.2s;
}
.btn-sm-primary { background: #1a7a3c; color: #fff; }
.btn-sm-primary:hover { background: #0f5a2c; color: #fff; }
.btn-sm-outline { border: 1.5px solid #1a7a3c; color: #1a7a3c; }
.btn-sm-outline:hover { background: #1a7a3c; color: #fff; }

/* ===== 滚动动画 ===== */
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ===== 底部 ===== */
.footer {
  background: linear-gradient(135deg, #0a1a0f 0%, #0f2d1a 100%);
  color: rgba(255,255,255,0.8);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-text { color: #a8f0c0; }
.footer-brand p { font-size: 13px; line-height: 1.8; color: rgba(255,255,255,0.6); margin-bottom: 16px; }
.footer-qr { display: flex; gap: 16px; }
.footer-qr-item { text-align: center; }
.footer-qr-item img { width: 80px; height: 80px; border-radius: 8px; border: 1px solid rgba(255,255,255,0.1); }
.footer-qr-item p { font-size: 11px; color: rgba(255,255,255,0.5); margin-top: 6px; }
.footer-col h4 {
  font-size: 14px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: 13px; color: rgba(255,255,255,0.6); transition: color 0.2s; }
.footer-col ul li a:hover { color: #a8f0c0; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: #a8f0c0; }
.footer-links { display: flex; gap: 16px; flex-wrap: wrap; }

/* ===== 视频模态框 ===== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal-box {
  background: #111;
  border-radius: 16px;
  overflow: hidden;
  max-width: 700px;
  width: 100%;
  position: relative;
}
.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(255,255,255,0.1);
  color: #fff;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
  transition: background 0.2s;
  cursor: pointer;
}
.modal-close:hover { background: rgba(255,255,255,0.2); }
.modal-video {
  background: #000;
  aspect-ratio: 16/9;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}
.modal-info { padding: 16px 20px; }
.modal-info h3 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 6px; }
.modal-info p { font-size: 12px; color: rgba(255,255,255,0.5); }

/* ===== 步骤卡片 ===== */
.join-steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}
.step-card {
  background: #fff;
  border-radius: 12px;
  padding: 24px 20px;
  border: 1px solid #d4e8db;
  text-align: center;
  transition: 0.3s;
}
.step-card:hover { transform: translateY(-4px); box-shadow: 0 8px 30px rgba(26,122,60,0.1); }
.step-num {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #1a7a3c, #2ea855);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 900;
  margin: 0 auto 14px;
}
.step-card h4 { font-size: 16px; font-weight: 800; color: #1a1a1a; margin-bottom: 8px; }
.step-card p { font-size: 13px; color: #666; line-height: 1.6; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .hamburger { display: flex; }
  .nav {
    display: none;
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
    z-index: 999;
    gap: 4px;
    max-height: calc(100vh - 68px);
    overflow-y: auto;
  }
  .nav.open { display: flex; }
  .nav > a, .nav-dropdown > a { padding: 12px 16px; border-radius: 8px; }
  .nav-dropdown .dropdown-menu { position: static; box-shadow: none; border: none; padding: 4px 0 4px 16px; }
  .nav-dropdown:hover .dropdown-menu { display: none; }
  .hero-content h1 { font-size: 28px; }
  .hero-stats { gap: 16px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .video-grid { grid-template-columns: 1fr; }
  .expert-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: 1fr; }
  .ai-grid { grid-template-columns: 1fr; }
  .review-grid { grid-template-columns: 1fr; }
  .article-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr 1fr; }
  .hero-banner { min-height: 380px; }
  .about-grid { grid-template-columns: 1fr !important; }
}
@media (max-width: 480px) {
  .section { padding: 40px 0; }
  .hero-content h1 { font-size: 24px; }
  .hero-btns { flex-direction: column; }
  .stats-row { grid-template-columns: 1fr 1fr; }
  .partner-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid { grid-template-columns: 1fr; }
  .search-form { flex-direction: column; }
  .search-form input { border-right: 2px solid #d4e8db; border-radius: 8px; }
  .search-form button { border-radius: 8px; }
}

/* ===== 时间轴 Timeline ===== */
.timeline { position: relative; padding-left: 32px; }
.timeline::before { content: ''; position: absolute; left: 10px; top: 0; bottom: 0; width: 2px; background: linear-gradient(180deg, #1a7a3c, #2ea855); }
.timeline-item { position: relative; margin-bottom: 28px; }
.timeline-item::before { content: ''; position: absolute; left: -26px; top: 6px; width: 12px; height: 12px; background: #1a7a3c; border-radius: 50%; border: 2px solid #fff; box-shadow: 0 0 0 3px #d4e8db; }
.timeline-year { display: inline-block; background: #1a7a3c; color: #fff; padding: 3px 12px; border-radius: 20px; font-size: 13px; font-weight: 700; margin-bottom: 8px; }
.timeline-content { background: #fff; border: 1px solid #d4e8db; border-radius: 10px; padding: 16px 20px; }
.timeline-content h4 { font-size: 15px; font-weight: 800; color: #1a1a1a; margin-bottom: 6px; }
.timeline-content p { font-size: 13px; color: #666; line-height: 1.7; }

/* ===== 专家奖章 Award Badge ===== */
.award-badge { display: inline-block; background: linear-gradient(135deg, #ffd700, #ffb300); color: #5a3a00; padding: 3px 10px; border-radius: 20px; font-size: 11px; font-weight: 700; margin: 3px 3px 0 0; }

/* ===== 文章标签 Article Tag ===== */
.article-tag { display: inline-block; background: #f0faf4; color: #1a7a3c; padding: 3px 10px; border-radius: 20px; font-size: 11px; font-weight: 700; border: 1px solid #d4e8db; margin-bottom: 10px; }
.article-excerpt { font-size: 13px; color: #666; line-height: 1.8; margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.article-meta { display: flex; gap: 12px; flex-wrap: wrap; font-size: 12px; color: #888; align-items: center; }

/* ===== 视频模态框 ===== */
.video-modal { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.85); z-index: 9999; align-items: center; justify-content: center; }
.video-modal.active { display: flex; }
.video-modal-inner { background: #111; border-radius: 16px; padding: 24px; max-width: 700px; width: 90%; position: relative; }
.video-modal-title { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 16px; line-height: 1.5; }
.video-modal-player { width: 100%; aspect-ratio: 16/9; background: #000; border-radius: 8px; display: flex; align-items: center; justify-content: center; color: #1a7a3c; font-size: 48px; cursor: pointer; }
.video-modal-close { position: absolute; top: 12px; right: 16px; color: #fff; font-size: 24px; cursor: pointer; background: none; border: none; line-height: 1; }
.video-modal-info { color: #aaa; font-size: 12px; margin-top: 12px; }

/* ===== 响应式补充 ===== */
@media (max-width: 768px) {
  .timeline { padding-left: 20px; }
  .timeline-item::before { left: -16px; }
}