@charset "UTF-8";
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

:root {
  --primary: #165DFF;
  --primary-light: #4080FF;
  --secondary: #0FC6C2;
  --success: #00B42A;
  --warning: #FF7D00;
  --danger: #F53F3F;
  --dark: #1D2129;
  --gray: #4E5969;
  --light: #F2F3F5;
  --white: #fff;
  --glass: rgba(255,255,255,0.1);
  --glass-border: rgba(255,255,255,0.2);
  --radius: 16px;
  --shadow: 0 8px 30px rgba(0,0,0,0.12);
}

body {
  background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
  color: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

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

.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

.glass-card {
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all 0.3s ease;
}

.glass-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(255,255,255,0.3);
}

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

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  background: var(--primary-light);
  border-radius: 50px;
  font-size: 14px;
  margin-bottom: 16px;
  color: #fff;
}

.section-title h2 {
  font-size: 32px;
  margin-bottom: 12px;
  color: var(--white);
}

.section-title p {
  color: rgba(255,255,255,0.7);
  max-width: 700px;
  margin: 0 auto;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 500;
  font-size: 16px;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.3);
}

.btn-outline:hover {
  border-color: #fff;
  background: rgba(255,255,255,0.1);
}

.site-header {
  padding: 20px 0;
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(15,23,42,0.8);
  backdrop-filter: blur(20px);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: bold;
  color: #fff;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--primary);
  border-radius: 8px;
}

.nav-menu {
  display: flex;
  gap: 32px;
}

.nav-menu a {
  color: rgba(255,255,255,0.8);
  transition: color 0.3s;
}

.nav-menu a:hover {
  color: var(--primary-light);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  margin: 5px 0;
}

.search-bar {
  margin-top: 16px;
}

.search-wrapper {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
}

.search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  background: rgba(255,255,255,0.3);
  border-radius: 50%;
}

.search-wrapper input {
  width: 100%;
  padding: 14px 16px 14px 50px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50px;
  color: #fff;
  font-size: 15px;
  outline: none;
}

.search-wrapper input::placeholder {
  color: rgba(255,255,255,0.5);
}

.hero-section {
  padding: 80px 0;
  text-align: center;
}

.hero-section h1 {
  font-size: 42px;
  max-width: 900px;
  margin: 0 auto 20px;
  line-height: 1.3;
}

.hero-section .subtitle {
  font-size: 18px;
  color: rgba(255,255,255,0.7);
  max-width: 800px;
  margin: 0 auto 30px;
}

.hero-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 40px;
}

.img-container {
  max-width: 700px;
  margin: 0 auto;
}

.img-container img {
  border-radius: var(--radius);
}

.dashboard-section {
  padding: 60px 0;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-card {
  text-align: center;
  padding: 30px 20px;
}

.stat-value {
  font-size: 32px;
  font-weight: bold;
  margin-bottom: 8px;
  color: #fff;
}

.stat-label {
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  margin-bottom: 8px;
}

.stat-change {
  font-size: 14px;
  color: var(--success);
}

.news-card, .video-card, .expert-card, .review-card {
  overflow: hidden;
  padding: 0;
}

.card-image, .video-thumb {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.card-body {
  padding: 20px;
}

.card-tag {
  display: inline-block;
  padding: 4px 10px;
  background: var(--primary);
  border-radius: 4px;
  font-size: 12px;
  margin-bottom: 10px;
}

.card-body h5, .card-body h6 {
  margin-bottom: 10px;
  font-size: 16px;
  line-height: 1.5;
}

.card-body p {
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  margin-bottom: 12px;
}

.card-meta {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: rgba(255,255,255,0.4);
}

.video-card {
  position: relative;
}

.video-play-btn {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%,-50%);
  width: 60px;
  height: 60px;
  background: rgba(22,93,255,0.9);
  border-radius: 50%;
}

.video-info {
  padding: 16px;
}

.video-info h5 {
  font-size: 16px;
  margin-bottom: 6px;
}

.video-info span {
  font-size: 12px;
  color: rgba(255,255,255,0.5);
}

.forum-post {
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.forum-post:last-child {
  border-bottom: none;
}

.post-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
}

.post-title {
  font-weight: 500;
}

.post-meta {
  font-size: 12px;
  color: rgba(255,255,255,0.5);
}

.post-excerpt {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  margin-bottom: 8px;
}

.post-tags {
  display: flex;
  gap: 8px;
}

.forum-tag {
  padding: 2px 8px;
  background: rgba(255,255,255,0.1);
  border-radius: 4px;
  font-size: 12px;
}

.expert-card {
  text-align: center;
}

.expert-avatar {
  width: 60px;
  height: 60px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin: 0 auto 16px;
}

.expert-title {
  color: var(--primary-light);
  font-size: 14px;
  margin-bottom: 10px;
}

.expert-card p {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
}

.review-stars {
  color: #FFD700;
  font-size: 18px;
  margin-bottom: 12px;
}

blockquote {
  font-style: italic;
  color: rgba(255,255,255,0.8);
  margin-bottom: 16px;
}

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

.review-author-avatar {
  width: 40px;
  height: 40px;
  background: var(--secondary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.review-author-info .date {
  font-size: 12px;
  color: rgba(255,255,255,0.4);
}

.share-section {
  padding: 60px 0;
  text-align: center;
}

.share-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.share-btn {
  padding: 12px 24px;
  border-radius: 50px;
  border: none;
  color: #fff;
  font-size: 15px;
  cursor: pointer;
}

.wechat { background: #07C160; }
.weibo { background: #E6162D; }
.douyin { background: #FE2C55; }
.bilibili { background: #FB7299; }

.content-block {
  padding: 30px;
}

.content-block h4 {
  margin-bottom: 16px;
  font-size: 20px;
}

.content-block p {
  margin-bottom: 16px;
  color: rgba(255,255,255,0.7);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.tag-item {
  padding: 6px 14px;
  background: rgba(255,255,255,0.1);
  border-radius: 50px;
  font-size: 13px;
}

.site-footer {
  padding: 60px 0 30px;
  background: #0F172A;
  border-top: 1px solid rgba(255,255,255,0.1);
}

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

.footer-brand p {
  color: rgba(255,255,255,0.5);
  margin-top: 16px;
  font-size: 14px;
}

.footer-col h4 {
  margin-bottom: 20px;
  font-size: 16px;
}

.footer-col li {
  margin-bottom: 10px;
  color: rgba(255,255,255,0.5);
  font-size: 14px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.3);
  font-size: 13px;
}

.page-section {
  padding: 60px 0;
}

@media (max-width: 1024px) {
  .grid-3, .grid-4, .dashboard-grid {
    grid-template-columns: repeat(2,1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  .hero-section h1 {
    font-size: 32px;
  }
  .hero-buttons {
    flex-direction: column;
  }
  .grid-3, .grid-4, .dashboard-grid, .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 10px;
  }
}