/* ============================================================
   大象传媒植物视频社区 - 主样式表
   品牌色：深墨绿 #0B2A1A / 翠绿 #1DB954 / 金黄 #F5C518 / 浅绿 #A8E6CF
   ============================================================ */

:root {
  --c-bg:        #0B1A10;
  --c-surface:   #122318;
  --c-card:      #162D1E;
  --c-border:    #1F4030;
  --c-primary:   #1DB954;
  --c-secondary: #F5C518;
  --c-accent:    #5CDB95;
  --c-text:      #D4EDD8;
  --c-muted:     #7BA888;
  --c-white:     #FFFFFF;
  --radius:      10px;
  --shadow:      0 4px 20px rgba(0,0,0,0.5);
  --transition:  0.3s ease;
  --font-main:   'PingFang SC','Microsoft YaHei','Hiragino Sans GB',sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-main);
  line-height: 1.7;
  overflow-x: hidden;
}

a { color: var(--c-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--c-secondary); }

img { max-width: 100%; height: auto; display: block; }

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

.section {
  padding: 70px 0;
}

.section-sm {
  padding: 40px 0;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: 12px;
  position: relative;
}

.section-title span {
  color: var(--c-primary);
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-secondary));
  border-radius: 2px;
  margin-top: 10px;
}

.section-subtitle {
  color: var(--c-muted);
  font-size: 1rem;
  margin-bottom: 40px;
  max-width: 600px;
}

.section-dark {
  background: var(--c-surface);
}

.section-darker {
  background: rgba(0,0,0,0.3);
}

/* ============================================================
   导航栏
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(11, 26, 16, 0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
  box-shadow: 0 2px 20px rgba(0,0,0,0.4);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 20px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.nav-brand img.site-logo {
  height: 44px;
  width: auto;
  border-radius: 6px;
}

.nav-brand img.site-favicon {
  height: 28px;
  width: 28px;
  border-radius: 50%;
}

.nav-brand-name {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--c-white);
  letter-spacing: 1px;
}

.nav-brand-name em {
  color: var(--c-primary);
  font-style: normal;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.site-nav a {
  display: block;
  padding: 6px 14px;
  color: var(--c-text);
  font-size: 0.92rem;
  font-weight: 500;
  border-radius: 6px;
  transition: all var(--transition);
  white-space: nowrap;
}

.site-nav a:hover,
.site-nav a.active {
  background: var(--c-primary);
  color: var(--c-bg);
}

/* 搜索框 */
.nav-search {
  display: flex;
  align-items: center;
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: 24px;
  padding: 0 14px;
  height: 38px;
  gap: 8px;
  min-width: 200px;
  transition: border-color var(--transition);
}

.nav-search:focus-within {
  border-color: var(--c-primary);
}

.nav-search input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--c-text);
  font-size: 0.88rem;
  width: 100%;
  font-family: var(--font-main);
}

.nav-search input::placeholder {
  color: var(--c-muted);
}

.nav-search button {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--c-muted);
  font-size: 1rem;
  padding: 0;
  display: flex;
  align-items: center;
  transition: color var(--transition);
}

.nav-search button:hover {
  color: var(--c-primary);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--c-text);
  font-size: 1.5rem;
}

/* 搜索栏（导航下方独立行） */
.search-bar-row {
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  padding: 10px 0;
}

.search-bar-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 600px;
  margin: 0 auto;
}

.search-bar-inner input {
  flex: 1;
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: 24px;
  padding: 8px 20px;
  color: var(--c-text);
  font-size: 0.95rem;
  outline: none;
  font-family: var(--font-main);
  transition: border-color var(--transition);
}

.search-bar-inner input:focus {
  border-color: var(--c-primary);
}

.search-bar-inner button {
  background: var(--c-primary);
  color: var(--c-bg);
  border: none;
  border-radius: 24px;
  padding: 8px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition);
  font-family: var(--font-main);
}

.search-bar-inner button:hover {
  background: var(--c-accent);
}

/* ============================================================
   Hero Banner
   ============================================================ */
.hero-section {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/hero_banner.jpg');
  background-size: cover;
  background-position: center;
  filter: brightness(0.45);
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11,26,16,0.85) 0%, rgba(29,185,84,0.15) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(29,185,84,0.2);
  border: 1px solid var(--c-primary);
  color: var(--c-primary);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 18px;
  letter-spacing: 1px;
}

.hero-title {
  font-size: 3rem;
  font-weight: 900;
  color: var(--c-white);
  line-height: 1.2;
  margin-bottom: 18px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.6);
}

.hero-title .brand {
  color: var(--c-primary);
}

.hero-desc {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 30px;
  max-width: 560px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 30px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.hero-stat-item {
  text-align: center;
}

.hero-stat-num {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--c-secondary);
}

.hero-stat-label {
  font-size: 0.8rem;
  color: var(--c-muted);
}

/* ============================================================
   按钮
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  font-family: var(--font-main);
  text-decoration: none;
}

.btn-primary {
  background: var(--c-primary);
  color: var(--c-bg);
}

.btn-primary:hover {
  background: var(--c-accent);
  color: var(--c-bg);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(29,185,84,0.4);
}

.btn-outline {
  background: transparent;
  color: var(--c-white);
  border: 2px solid rgba(255,255,255,0.4);
}

.btn-outline:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
}

.btn-gold {
  background: var(--c-secondary);
  color: #1a1a1a;
}

.btn-gold:hover {
  background: #ffd740;
  transform: translateY(-2px);
}

/* ============================================================
   视频卡片
   ============================================================ */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 22px;
}

.video-card {
  background: var(--c-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--c-border);
  transition: all var(--transition);
  cursor: pointer;
}

.video-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(29,185,84,0.25);
  border-color: var(--c-primary);
}

.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.video-card:hover .video-thumb img {
  transform: scale(1.06);
}

.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.35);
  opacity: 0;
  transition: opacity var(--transition);
}

.video-card:hover .video-play-btn {
  opacity: 1;
}

.play-icon {
  width: 56px;
  height: 56px;
  background: rgba(29,185,84,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: white;
  box-shadow: 0 4px 20px rgba(29,185,84,0.5);
  transition: transform var(--transition);
}

.video-card:hover .play-icon {
  transform: scale(1.1);
}

.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  color: white;
  font-size: 0.75rem;
  padding: 2px 7px;
  border-radius: 4px;
}

.video-tag {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--c-primary);
  color: var(--c-bg);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
}

.video-info {
  padding: 14px;
}

.video-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--c-white);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.78rem;
  color: var(--c-muted);
}

.video-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.video-stats {
  display: flex;
  gap: 14px;
  margin-top: 8px;
  font-size: 0.78rem;
  color: var(--c-muted);
}

/* ============================================================
   标签云
   ============================================================ */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 30px;
}

.tag-item {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  color: var(--c-muted);
  font-size: 0.82rem;
  padding: 4px 12px;
  border-radius: 20px;
  cursor: pointer;
  transition: all var(--transition);
}

.tag-item:hover,
.tag-item.active {
  background: var(--c-primary);
  color: var(--c-bg);
  border-color: var(--c-primary);
}

/* ============================================================
   功能模块卡片
   ============================================================ */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 22px;
}

.feature-card {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: all var(--transition);
}

.feature-card:hover {
  border-color: var(--c-primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.feature-icon {
  font-size: 2.2rem;
  margin-bottom: 14px;
}

.feature-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: 8px;
}

.feature-desc {
  font-size: 0.88rem;
  color: var(--c-muted);
  line-height: 1.6;
}

/* ============================================================
   专家展示
   ============================================================ */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}

.expert-card {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  transition: all var(--transition);
}

.expert-card:hover {
  border-color: var(--c-primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.expert-avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 14px;
  border: 3px solid var(--c-primary);
}

.expert-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: 4px;
}

.expert-role {
  font-size: 0.82rem;
  color: var(--c-primary);
  margin-bottom: 10px;
}

.expert-bio {
  font-size: 0.82rem;
  color: var(--c-muted);
  line-height: 1.5;
  margin-bottom: 14px;
}

.expert-actions {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}

.expert-btn {
  font-size: 0.78rem;
  padding: 5px 14px;
  border-radius: 20px;
  border: 1px solid var(--c-border);
  color: var(--c-muted);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-main);
}

.expert-btn:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  cursor: pointer;
  font-size: 0.97rem;
  font-weight: 600;
  color: var(--c-white);
  transition: color var(--transition);
  user-select: none;
}

.faq-question:hover {
  color: var(--c-primary);
}

.faq-icon {
  color: var(--c-primary);
  font-size: 1.2rem;
  transition: transform var(--transition);
  flex-shrink: 0;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 22px;
  font-size: 0.9rem;
  color: var(--c-muted);
  line-height: 1.7;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 22px 18px;
}

/* ============================================================
   用户评价
   ============================================================ */
.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.review-card {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 22px;
  transition: all var(--transition);
}

.review-card:hover {
  border-color: var(--c-primary);
  box-shadow: var(--shadow);
}

.review-stars {
  color: var(--c-secondary);
  font-size: 0.9rem;
  margin-bottom: 10px;
  letter-spacing: 2px;
}

.review-text {
  font-size: 0.9rem;
  color: var(--c-text);
  line-height: 1.6;
  margin-bottom: 14px;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 10px;
}

.review-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--c-bg);
  flex-shrink: 0;
}

.review-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--c-white);
}

.review-date {
  font-size: 0.75rem;
  color: var(--c-muted);
}

/* ============================================================
   统计数据
   ============================================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 20px;
}

.stat-card {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  transition: all var(--transition);
}

.stat-card:hover {
  border-color: var(--c-primary);
  transform: translateY(-3px);
}

.stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--c-secondary);
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--c-muted);
}

/* ============================================================
   合作品牌墙
   ============================================================ */
.partner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 16px;
}

.partner-item {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 18px 14px;
  text-align: center;
  font-size: 0.88rem;
  color: var(--c-muted);
  font-weight: 600;
  transition: all var(--transition);
}

.partner-item:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
}

/* ============================================================
   How-To 步骤
   ============================================================ */
.howto-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 22px;
}

.howto-step {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 26px 20px;
  position: relative;
  transition: all var(--transition);
}

.howto-step:hover {
  border-color: var(--c-primary);
  transform: translateY(-4px);
}

.howto-num {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--c-primary);
  opacity: 0.3;
  position: absolute;
  top: 14px;
  right: 18px;
  line-height: 1;
}

.howto-icon {
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.howto-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: 8px;
}

.howto-desc {
  font-size: 0.85rem;
  color: var(--c-muted);
  line-height: 1.6;
}

/* ============================================================
   联系区域
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.contact-info-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-info-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.92rem;
  color: var(--c-text);
}

.contact-icon {
  width: 36px;
  height: 36px;
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.qr-row {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.qr-item {
  text-align: center;
}

.qr-item img {
  width: 100px;
  height: 100px;
  border-radius: 8px;
  border: 2px solid var(--c-border);
  margin-bottom: 8px;
}

.qr-label {
  font-size: 0.78rem;
  color: var(--c-muted);
}

/* ============================================================
   社交分享
   ============================================================ */
.share-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.share-label {
  font-size: 0.85rem;
  color: var(--c-muted);
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  font-family: var(--font-main);
}

.share-wechat  { background: #07C160; color: #fff; }
.share-weibo   { background: #E6162D; color: #fff; }
.share-douyin  { background: #000; color: #fff; border: 1px solid #333; }
.share-bilibili{ background: #00A1D6; color: #fff; }
.share-btn:hover { opacity: 0.85; transform: translateY(-2px); }

/* ============================================================
   视频弹窗
   ============================================================ */
.video-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0,0,0,0.85);
  align-items: center;
  justify-content: center;
}

.video-modal.open {
  display: flex;
}

.modal-inner {
  background: var(--c-card);
  border-radius: 12px;
  padding: 28px;
  max-width: 700px;
  width: 90%;
  position: relative;
  border: 1px solid var(--c-border);
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 18px;
  background: none;
  border: none;
  color: var(--c-muted);
  font-size: 1.5rem;
  cursor: pointer;
  transition: color var(--transition);
}

.modal-close:hover { color: var(--c-white); }

.modal-video-area {
  aspect-ratio: 16/9;
  background: #000;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  overflow: hidden;
}

.modal-video-area video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--c-muted);
}

.modal-placeholder .big-play {
  font-size: 3rem;
  color: var(--c-primary);
}

.modal-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: 6px;
}

.modal-desc {
  font-size: 0.85rem;
  color: var(--c-muted);
}

/* ============================================================
   面包屑
   ============================================================ */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--c-muted);
  padding: 12px 0;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--c-muted);
}

.breadcrumb a:hover {
  color: var(--c-primary);
}

.breadcrumb .sep {
  color: var(--c-border);
}

.breadcrumb .current {
  color: var(--c-text);
}

/* ============================================================
   页脚
   ============================================================ */
.site-footer {
  background: #060F09;
  border-top: 1px solid var(--c-border);
  padding: 50px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand img {
  height: 40px;
  margin-bottom: 12px;
}

.footer-brand-desc {
  font-size: 0.85rem;
  color: var(--c-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}

.footer-col-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: 14px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--c-muted);
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--c-primary);
}

.footer-bottom {
  border-top: 1px solid var(--c-border);
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--c-muted);
}

.footer-update {
  color: var(--c-primary);
  font-size: 0.8rem;
}

/* ============================================================
   JSON展示区
   ============================================================ */
.json-display {
  background: #0a1a0e;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 20px;
  font-family: 'Courier New', monospace;
  font-size: 0.78rem;
  color: var(--c-muted);
  overflow-x: auto;
  max-height: 300px;
  overflow-y: auto;
  line-height: 1.6;
}

.json-key   { color: #7EC8E3; }
.json-str   { color: #A8E6CF; }
.json-num   { color: var(--c-secondary); }
.json-bool  { color: var(--c-primary); }
.json-null  { color: #E06C75; }

/* ============================================================
   内页 Hero
   ============================================================ */
.inner-hero {
  background: linear-gradient(135deg, var(--c-surface) 0%, rgba(29,185,84,0.08) 100%);
  border-bottom: 1px solid var(--c-border);
  padding: 50px 0 40px;
}

.inner-hero-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--c-white);
  margin-bottom: 10px;
}

.inner-hero-desc {
  font-size: 0.95rem;
  color: var(--c-muted);
  max-width: 600px;
}

/* ============================================================
   分页
   ============================================================ */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.page-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: 6px;
  color: var(--c-muted);
  font-size: 0.88rem;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-main);
}

.page-btn:hover,
.page-btn.active {
  background: var(--c-primary);
  color: var(--c-bg);
  border-color: var(--c-primary);
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .hero-title { font-size: 2rem; }
  .section { padding: 50px 0; }
  .section-title { font-size: 1.6rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .nav-toggle { display: block; }
  .site-nav, .nav-search {
    display: none;
  }
  .site-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--c-surface);
    border-bottom: 1px solid var(--c-border);
    padding: 16px;
    z-index: 999;
  }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .hero-stats { gap: 20px; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 1.6rem; }
  .container { padding: 0 14px; }
  .video-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .expert-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   干扰标签隐藏（确保不影响布局）
   ============================================================ */
.noise-wrap {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
}