* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif; color: #333; background: #f5f5f5; }
.container_head { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%); box-shadow: 0 2px 20px rgba(0,0,0,0.3); padding: 0 20px; height: 70px; display: flex; align-items: center; justify-content: center; }
.container_head_center { width: 100%; max-width: 1600px; display: flex; align-items: center; justify-content: flex-start; gap: 16px; }
.container_head_center_logo_box { font-size: 15px; color: #fff; font-weight: bold; white-space: nowrap; text-shadow: 0 0 10px rgba(255,255,255,0.3); flex-shrink: 0; }
.nav { display: flex; gap: 0; flex-wrap: nowrap; overflow-x: auto; flex: 1; min-width: 0; scrollbar-width: none; }
.nav::-webkit-scrollbar { display: none; }
.nav a { color: rgba(255,255,255,0.75); text-decoration: none; padding: 8px 10px; font-size: 13px; border-radius: 6px; transition: all 0.3s ease; white-space: nowrap; }
.nav a:hover, .nav a.span_s { color: #fff; background: rgba(255,255,255,0.15); }
.auth-box { display: flex; align-items: center; margin-left: 0; white-space: nowrap; flex-shrink: 0; }
.auth-btn { color: #fff; text-decoration: none; padding: 7px 16px; font-size: 14px; border-radius: 6px; background: rgba(233,69,96,0.85); transition: all 0.3s ease; }
.auth-btn:hover { background: #e94560; }
.auth-user-box { display: flex; align-items: center; gap: 10px; }
.auth-username { color: #fff; font-size: 14px; }
.section { padding: 100px 40px 60px; min-height: 100vh; }
.section-title { text-align: center; font-size: 32px; font-weight: bold; margin-bottom: 40px; color: #1a1a2e; position: relative; padding-bottom: 15px; }
.section-title::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 60px; height: 3px; background: linear-gradient(90deg, #e94560, #0f3460); border-radius: 3px; }
.home-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; max-width: 1200px; margin: 0 auto; }
.home-card { background: rgba(255,255,255,0.15); backdrop-filter: blur(10px); border-radius: 16px; padding: 40px 30px; border: 1px solid rgba(255,255,255,0.2); transition: transform 0.3s ease, box-shadow 0.3s ease; color: #fff; }
.home-card:hover { transform: translateY(-8px); box-shadow: 0 20px 40px rgba(0,0,0,0.2); }
.home-card h2 { font-size: 22px; margin-bottom: 15px; }
.home-card p { font-size: 15px; line-height: 1.8; opacity: 0.9; }
.data-table { width: 100%; border-collapse: collapse; background: #fff; box-shadow: 0 4px 15px rgba(0,0,0,0.08); border-radius: 10px; overflow: hidden; }
.data-table thead tr { background: linear-gradient(135deg, #1a1a2e, #0f3460); }
.data-table th { color: #fff; padding: 14px 16px; font-size: 14px; font-weight: 500; white-space: nowrap; text-align: left; }
.data-table td { padding: 12px 16px; font-size: 14px; border-bottom: 1px solid #f0f0f0; vertical-align: middle; }
.data-table tbody tr:hover { background: #f8f9ff; }
.data-table img { border-radius: 6px; object-fit: cover; }
.tab-container { padding: 120px 40px 60px; background: #f8f9fa; }
.tab-container .section-title { margin-bottom: 20px; }
.tab-nav-bar { display: flex; gap: 0; background: #fff; border-radius: 10px 10px 0 0; box-shadow: 0 2px 8px rgba(0,0,0,0.06); overflow-x: auto; max-width: 1200px; margin: 0 auto; }
.tab-nav-bar a { padding: 14px 24px; font-size: 14px; color: #666; text-decoration: none; white-space: nowrap; border-bottom: 3px solid transparent; transition: all 0.3s ease; }
.tab-nav-bar a.active, .tab-nav-bar a:hover { color: #0f3460; border-bottom-color: #e94560; font-weight: bold; }
.tab-content-area { max-width: 1200px; margin: 0 auto; overflow-x: auto; }
.tab-pane { display: none; padding: 20px 0; }
.tab-pane.active { display: block; }
.tab-pane h2 { font-size: 20px; color: #1a1a2e; margin-bottom: 15px; }
.video-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 25px; }
.video-item { background: #fff; border-radius: 12px; overflow: hidden; box-shadow: 0 4px 15px rgba(0,0,0,0.08); cursor: pointer; transition: transform 0.3s ease; }
.video-item:hover { transform: translateY(-5px); box-shadow: 0 8px 25px rgba(0,0,0,0.12); }
.video-item img { width: 100%; aspect-ratio: 9 / 16; object-fit: contain; background: #f0f0f0; }
.video-info { padding: 15px; }
.video-info h3 { font-size: 16px; color: #333; margin-bottom: 5px; }
.video-info .date { font-size: 13px; color: #999; }
.modal { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.8); z-index: 2000; justify-content: center; align-items: center; }
.modal.show { display: flex; }
.modal-content { background: #fff; border-radius: 16px; padding: 30px; max-width: 800px; width: 90%; text-align: center; }
.modal-content video { width: 100%; border-radius: 10px; margin-bottom: 15px; }
.modal-content h2 { font-size: 20px; margin-bottom: 10px; }
.modal-content .close { padding: 10px 30px; background: #e94560; color: #fff; border: none; border-radius: 8px; font-size: 14px; cursor: pointer; margin-top: 10px; }
.no-data { text-align: center; padding: 40px; color: #999; font-size: 14px; }
.config-val { max-width: 300px; word-break: break-all; }
.hl { color: #0f3460; font-weight: bold; }
.about-p { font-size: 15px; line-height: 2; margin-bottom: 12px; color: #555; }
.about-p2 { font-size: 15px; line-height: 2; margin-bottom: 12px; text-indent: 2em; color: #555; }
.about-h2 { font-size: 24px; color: #0f3460; margin: 30px 0 15px; border-left: 4px solid #e94560; padding-left: 12px; }
.about-h3 { font-size: 20px; color: #333; margin: 20px 0 10px; }
.about-li { font-size: 15px; line-height: 2; margin-bottom: 8px; color: #555; }
@media (max-width: 768px) {
  .home-grid { grid-template-columns: 1fr; }
  .video-list { grid-template-columns: 1fr; }
  .nav a { padding: 6px 8px; font-size: 12px; }
  .container_head { padding: 0 15px; height: auto; min-height: 60px; flex-wrap: wrap; }
  .container_head_center { flex-direction: column; padding: 10px 0; }
  .nav { flex-wrap: wrap; justify-content: center; }
  .section { padding: 80px 15px 40px; }
}
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: #ccc; border-radius: 4px; }
::-webkit-scrollbar-track { background: #f5f5f5; }
.doc-item { padding: 12px 16px; border: 1px solid #eee; border-radius: 8px; margin-bottom: 10px; display: flex; justify-content: space-between; align-items: center; }
.doc-item a { color: #0f3460; text-decoration: none; font-weight: bold; }