/* 糖心vlog - 游戏解说社区 - 原创样式 */
/* 主色调：深紫 #1a0a2e，金色 #d4af37，青色 #00e5ff */

:root {
  --primary: #1a0a2e;
  --primary-dark: #0d0518;
  --primary-mid: #2d1454;
  --accent-gold: #d4af37;
  --accent-cyan: #00e5ff;
  --accent-purple: #9b59b6;
  --accent-violet: #7c3aed;
  --text-main: #e8e0f0;
  --text-muted: #a89bc2;
  --text-bright: #ffffff;
  --card-bg: rgba(45, 20, 84, 0.7);
  --card-border: rgba(212, 175, 55, 0.3);
  --gradient-main: linear-gradient(135deg, #1a0a2e 0%, #2d1454 50%, #1a0a2e 100%);
  --gradient-gold: linear-gradient(135deg, #d4af37, #f5d76e, #d4af37);
  --gradient-hero: linear-gradient(180deg, rgba(26,10,46,0) 0%, rgba(26,10,46,0.8) 70%, #1a0a2e 100%);
  --shadow-glow: 0 0 20px rgba(212, 175, 55, 0.3);
  --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
  --radius: 12px;
  --radius-sm: 6px;
  --transition: 0.3s ease;
}

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

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

body {
  font-family: 'Microsoft YaHei', '微软雅黑', 'PingFang SC', sans-serif;
  background: var(--primary-dark);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
}

a { color: var(--accent-gold); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-cyan); }

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

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

/* ========== 顶部导航 ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(13, 5, 24, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(212, 175, 55, 0.2);
  transition: all var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 20px;
}

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

.site-logo img {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  object-fit: cover;
}

.logo-text {
  font-size: 1.3rem;
  font-weight: 700;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
}

.main-nav li a {
  display: block;
  padding: 8px 14px;
  color: var(--text-main);
  font-size: 0.92rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
}

.main-nav li a:hover,
.main-nav li a.active {
  color: var(--accent-gold);
  background: rgba(212, 175, 55, 0.1);
}

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

.btn-join {
  padding: 8px 18px;
  background: var(--gradient-gold);
  color: var(--primary-dark);
  border: none;
  border-radius: 20px;
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-join:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(212, 175, 55, 0.5);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--accent-gold);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ========== 搜索框 ========== */
.search-bar-wrap {
  background: rgba(26, 10, 46, 0.95);
  border-bottom: 1px solid rgba(212, 175, 55, 0.15);
  padding: 10px 0;
}

.search-bar-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 700px;
  margin: 0 auto;
  padding: 0 20px;
}

.search-input {
  flex: 1;
  padding: 10px 18px;
  background: rgba(45, 20, 84, 0.8);
  border: 1px solid rgba(212, 175, 55, 0.3);
  border-radius: 24px;
  color: var(--text-main);
  font-size: 0.9rem;
  outline: none;
  transition: all var(--transition);
}

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

.search-input:focus {
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.15);
}

.search-btn {
  padding: 10px 22px;
  background: var(--gradient-gold);
  color: var(--primary-dark);
  border: none;
  border-radius: 24px;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.search-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(212, 175, 55, 0.4);
}

.search-tags {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.search-tags a {
  color: var(--text-muted);
  padding: 2px 8px;
  border: 1px solid rgba(212, 175, 55, 0.2);
  border-radius: 10px;
  transition: all var(--transition);
  font-size: 0.8rem;
}

.search-tags a:hover {
  color: var(--accent-gold);
  border-color: var(--accent-gold);
}

/* ========== 英雄Banner ========== */
.hero-banner {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 120px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/banner_bg.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  z-index: 0;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13,5,24,0.85) 0%, rgba(26,10,46,0.7) 50%, rgba(13,5,24,0.9) 100%);
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(212, 175, 55, 0.15);
  border: 1px solid rgba(212, 175, 55, 0.4);
  border-radius: 20px;
  font-size: 0.82rem;
  color: var(--accent-gold);
  margin-bottom: 20px;
}

.hero-badge::before {
  content: '▶';
  font-size: 0.7rem;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 16px;
  color: var(--text-bright);
}

.hero-title .brand-highlight {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 30px;
  max-width: 560px;
  line-height: 1.8;
}

.hero-stats {
  display: flex;
  gap: 30px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

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

.hero-stat .num {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent-gold);
  display: block;
}

.hero-stat .label {
  font-size: 0.82rem;
  color: var(--text-muted);
}

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

.btn-primary {
  padding: 13px 30px;
  background: var(--gradient-gold);
  color: var(--primary-dark);
  border: none;
  border-radius: 28px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(212, 175, 55, 0.5);
  color: var(--primary-dark);
}

.btn-outline {
  padding: 13px 30px;
  background: transparent;
  color: var(--text-bright);
  border: 1.5px solid rgba(255,255,255,0.4);
  border-radius: 28px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-outline:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  background: rgba(212, 175, 55, 0.08);
}

.hero-scroll-hint {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.8rem;
  animation: bounce 2s infinite;
}

.hero-scroll-hint::after {
  content: '↓';
  font-size: 1.2rem;
  color: var(--accent-gold);
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ========== 通用区块 ========== */
.section {
  padding: 80px 0;
}

.section-alt {
  background: rgba(45, 20, 84, 0.2);
}

.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-tag {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(212, 175, 55, 0.15);
  border: 1px solid rgba(212, 175, 55, 0.3);
  border-radius: 12px;
  font-size: 0.8rem;
  color: var(--accent-gold);
  margin-bottom: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--text-bright);
  margin-bottom: 12px;
}

.section-title .gold { color: var(--accent-gold); }

.section-desc {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* ========== 视频卡片 ========== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

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

.video-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow), var(--shadow-card);
  border-color: rgba(212, 175, 55, 0.6);
}

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

.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.video-card:hover .video-thumb img {
  transform: scale(1.05);
}

.play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}

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

.play-btn {
  width: 56px;
  height: 56px;
  background: rgba(212, 175, 55, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition);
}

.play-btn::after {
  content: '';
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent #1a0a2e;
  margin-left: 4px;
}

.play-btn:hover { transform: scale(1.1); }

.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  padding: 2px 8px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 0.78rem;
  border-radius: 4px;
}

.video-tag {
  position: absolute;
  top: 8px;
  left: 8px;
  padding: 3px 10px;
  background: var(--accent-violet);
  color: #fff;
  font-size: 0.75rem;
  border-radius: 4px;
  font-weight: 600;
}

.video-info {
  padding: 14px;
}

.video-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.5;
}

.video-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

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

/* ========== 功能模块卡片 ========== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-gold);
  transform: scaleX(0);
  transition: transform var(--transition);
}

.feature-card:hover::before { transform: scaleX(1); }

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-color: rgba(212, 175, 55, 0.5);
}

.feature-icon {
  width: 52px;
  height: 52px;
  background: rgba(212, 175, 55, 0.15);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
}

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

.feature-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ========== 专家展示 ========== */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 24px;
}

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

.expert-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-glow);
  border-color: rgba(212, 175, 55, 0.5);
}

.expert-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--gradient-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 16px;
  border: 3px solid rgba(212, 175, 55, 0.4);
}

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

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

.expert-desc {
  font-size: 0.83rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 14px;
}

.expert-awards {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin-bottom: 14px;
}

.award-tag {
  padding: 3px 10px;
  background: rgba(212, 175, 55, 0.12);
  border: 1px solid rgba(212, 175, 55, 0.25);
  border-radius: 10px;
  font-size: 0.75rem;
  color: var(--accent-gold);
}

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

.btn-sm {
  padding: 6px 14px;
  font-size: 0.8rem;
  border-radius: 16px;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  display: inline-block;
}

.btn-sm-gold {
  background: var(--gradient-gold);
  color: var(--primary-dark);
  border: none;
  font-weight: 600;
}

.btn-sm-outline {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid rgba(255,255,255,0.2);
}

.btn-sm-outline:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

/* ========== 评论区 ========== */
.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

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

.review-card:hover {
  border-color: rgba(212, 175, 55, 0.4);
  transform: translateY(-3px);
}

.review-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.reviewer-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.reviewer-info .name {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-bright);
}

.reviewer-info .date {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.review-stars {
  color: var(--accent-gold);
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.review-text {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
}

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

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

.faq-item:hover {
  border-color: rgba(212, 175, 55, 0.4);
}

.faq-question {
  padding: 18px 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-bright);
  gap: 12px;
}

.faq-question::after {
  content: '+';
  font-size: 1.3rem;
  color: var(--accent-gold);
  flex-shrink: 0;
  transition: transform var(--transition);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 22px;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.8;
}

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

/* ========== 合作品牌墙 ========== */
.brand-wall {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  align-items: center;
}

.brand-item {
  padding: 12px 24px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: all var(--transition);
  font-weight: 600;
}

.brand-item:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  transform: translateY(-2px);
}

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

.contact-info h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 20px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.contact-icon {
  width: 36px;
  height: 36px;
  background: rgba(212, 175, 55, 0.12);
  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-box {
  text-align: center;
}

.qr-box img {
  width: 120px;
  height: 120px;
  border-radius: 8px;
  border: 2px solid rgba(212, 175, 55, 0.3);
}

.qr-box p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 8px;
}

/* ========== 社区频道 ========== */
.channel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}

.channel-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 24px 18px;
  text-align: center;
  transition: all var(--transition);
  cursor: pointer;
}

.channel-card:hover {
  transform: translateY(-4px);
  border-color: rgba(212, 175, 55, 0.5);
  box-shadow: var(--shadow-glow);
}

.channel-emoji {
  font-size: 2.5rem;
  margin-bottom: 12px;
  display: block;
}

.channel-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 6px;
}

.channel-count {
  font-size: 0.8rem;
  color: var(--accent-gold);
}

/* ========== AI赋能区块 ========== */
.ai-section-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.ai-img-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  border: 2px solid rgba(212, 175, 55, 0.2);
  box-shadow: var(--shadow-glow);
}

.ai-features {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.ai-feature-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.ai-feature-icon {
  width: 44px;
  height: 44px;
  background: rgba(0, 229, 255, 0.12);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
  border: 1px solid rgba(0, 229, 255, 0.2);
}

.ai-feature-text h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 4px;
}

.ai-feature-text p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ========== 分享按钮 ========== */
.share-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.share-label {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.share-btn {
  padding: 7px 16px;
  border-radius: 18px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  display: flex;
  align-items: center;
  gap: 6px;
}

.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 { transform: translateY(-2px); opacity: 0.9; }

/* ========== 页脚 ========== */
.site-footer {
  background: var(--primary-dark);
  border-top: 1px solid rgba(212, 175, 55, 0.15);
  padding: 60px 0 0;
}

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

.footer-brand-col .logo-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.footer-brand-col .logo-wrap img {
  width: 40px;
  height: 40px;
  border-radius: 8px;
}

.footer-brand-col p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(212, 175, 55, 0.2);
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  font-size: 0.87rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer-col ul li a:hover {
  color: var(--accent-gold);
}

.footer-bottom {
  border-top: 1px solid rgba(212, 175, 55, 0.1);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 16px;
}

.footer-links a {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-links a:hover { color: var(--accent-gold); }

/* ========== 面包屑 ========== */
.breadcrumb {
  padding: 14px 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--accent-gold); }
.breadcrumb .sep { color: rgba(255,255,255,0.2); }
.breadcrumb .current { color: var(--accent-gold); }

/* ========== 页面头部 ========== */
.page-hero {
  padding: 140px 0 60px;
  background: var(--gradient-main);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(212, 175, 55, 0.08) 0%, transparent 70%);
}

.page-hero-content {
  position: relative;
  z-index: 1;
}

.page-hero h1 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--text-bright);
  margin-bottom: 12px;
}

.page-hero p {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 600px;
}

/* ========== 加载动画 ========== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-in {
  animation: fadeInUp 0.6s ease forwards;
}

/* ========== 滚动条 ========== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--primary-dark); }
::-webkit-scrollbar-thumb { background: rgba(212, 175, 55, 0.3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(212, 175, 55, 0.5); }

/* ========== 移动端适配 ========== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .ai-section-inner { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .main-nav { display: none; flex-direction: column; position: absolute; top: 70px; left: 0; right: 0; background: rgba(13,5,24,0.98); padding: 16px; border-bottom: 1px solid rgba(212,175,55,0.2); }
  .main-nav.open { display: flex; }
  .hamburger { display: flex; }
  .hero-stats { gap: 20px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .section { padding: 50px 0; }
  .search-bar-inner { flex-wrap: wrap; }
  .search-tags { display: none; }
}

@media (max-width: 480px) {
  .feature-grid { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; }
  .btn-primary, .btn-outline { text-align: center; justify-content: center; }
  .expert-grid { grid-template-columns: 1fr 1fr; }
  .review-grid { grid-template-columns: 1fr; }
}

/* ========== 特效 ========== */
.glow-text {
  text-shadow: 0 0 20px rgba(212, 175, 55, 0.5);
}

.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212,175,55,0.3), transparent);
  margin: 40px 0;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.tag {
  padding: 4px 12px;
  background: rgba(124, 58, 237, 0.2);
  border: 1px solid rgba(124, 58, 237, 0.3);
  border-radius: 12px;
  font-size: 0.78rem;
  color: var(--accent-purple);
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}

.stat-box {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 24px 16px;
}

.stat-box .num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-gold);
  display: block;
}

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

@media (max-width: 600px) {
  .stats-row { grid-template-columns: 1fr 1fr; }
}

/* ========== 移动端导航遮罩 ========== */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 999;
}

.nav-overlay.show { display: block; }

/* epohokr */
.epohokr-noise {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
  font-size: 0;
  height: 0;
  width: 0;
  overflow: hidden;
  display: none;
}
[id^="epohokr-"] {
  visibility: hidden;
  position: absolute;
  z-index: -1;
}