/* ========== 基础 & 变量 ========== */
:root {
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --secondary: #0ea5e9;
  --bg: #0f172a;
  --bg-card: #1e293b;
  --bg-card-hover: #273449;
  --text: #e2e8f0;
  --text-secondary: #94a3b8;
  --border: #334155;
  --radius: 10px;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
  --transition: 0.2s ease;
}
html { font-size: 16px; }
@media (max-width: 480px)  { html { font-size: 15px; } }
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-text-size-adjust: 100%;
}
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}
@media (max-width: 480px) { .container { padding: 0 14px; } }
a { color: var(--secondary); text-decoration: none; }
a:hover { text-decoration: underline; }
/* 导航栏 */
.navbar {
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0 20px;
}
@media (max-width: 480px) { .navbar { padding: 0 12px; } }
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: 1100px;
  margin: 0 auto;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.3rem;
  font-weight: 700;
  flex-shrink: 0;
}
.logo-icon { font-size: 1.6rem; }
@media (max-width: 480px) { .nav-logo { font-size: 1.1rem; } .logo-icon { font-size: 1.3rem; } }
.nav-links { display: flex; list-style: none; gap: 4px; }
.nav-links a {
  display: block;
  padding: 8px 18px;
  border-radius: 8px;
  color: var(--text-secondary);
  font-weight: 500;
  transition: var(--transition);
  white-space: nowrap;
}
.nav-links a:hover, .nav-links a.active { background: var(--bg-card); color: var(--text); }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px 6px;
}
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: var(--transition); }
.main-content { flex: 1; padding-top: 40px; padding-bottom: 60px; }
@media (max-width: 768px) { .main-content { padding-top: 28px; padding-bottom: 40px; } }
@media (max-width: 480px) { .main-content { padding-top: 20px; padding-bottom: 32px; } }
.hero { text-align: center; padding: 60px 16px 40px; }
.hero h1 {
  font-size: 2.8rem;
  margin-bottom: 12px;
  background: linear-gradient(135deg, #818cf8, #22d3ee);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle { font-size: 1.2rem; color: var(--text-secondary); margin-bottom: 32px; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
@media (max-width: 768px) { .hero { padding: 40px 16px 28px; } .hero h1 { font-size: 2rem; } .hero-subtitle { font-size: 1rem; margin-bottom: 24px; } }
@media (max-width: 480px) { .hero { padding: 28px 12px 20px; } .hero h1 { font-size: 1.6rem; } .hero-subtitle { font-size: 0.93rem; margin-bottom: 20px; } .hero-actions { flex-direction: column; align-items: stretch; } .hero-actions .btn { width: 100%; justify-content: center; } }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 24px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  min-height: 44px;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(79,70,229,0.4); }
.btn-primary:active { transform: translateY(0); }
.btn-secondary { background: var(--bg-card); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--bg-card-hover); transform: translateY(-1px); }
.btn-secondary:active { transform: translateY(0); }
.btn-download { background: #059669; color: #fff; padding: 8px 18px; font-size: 0.93rem; flex-shrink: 0; }
.btn-download:hover { background: #047857; transform: scale(1.03); }
.btn-sm { padding: 6px 14px; font-size: 0.85rem; font-weight: 500; background: var(--bg-card); color: var(--text-secondary); border-radius: 6px; min-height: 36px; }
.btn-sm:hover { background: var(--bg-card-hover); color: var(--text); }
@media (max-width: 480px) { .btn { font-size: 0.95rem; padding: 10px 20px; } .btn-download { font-size: 0.9rem; padding: 10px 18px; } }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 20px; margin: 20px 0 50px; }
.feature-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 24px; text-align: center; transition: var(--transition); }
.feature-card:hover { border-color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow); }
.feature-icon { font-size: 2.5rem; margin-bottom: 12px; }
.feature-card h3 { font-size: 1.15rem; margin-bottom: 8px; }
.feature-card p { color: var(--text-secondary); font-size: 0.93rem; }
@media (max-width: 768px) { .features { gap: 14px; margin: 16px 0 36px; } .feature-card { padding: 22px 18px; } .feature-icon { font-size: 2rem; } }
@media (max-width: 480px) { .features { grid-template-columns: 1fr 1fr; gap: 10px; } .feature-card { padding: 18px 12px; } .feature-icon { font-size: 1.7rem; margin-bottom: 8px; } }
.section { margin-bottom: 50px; }
.section-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; flex-wrap: wrap; gap: 10px; }
.section-header h2 { font-size: 1.5rem; }
@media (max-width: 768px) { .section { margin-bottom: 36px; } .section-header h2 { font-size: 1.3rem; } }
@media (max-width: 480px) { .section { margin-bottom: 28px; } .section-header h2 { font-size: 1.15rem; } }
.page-header { text-align: center; margin-bottom: 28px; }
.page-header h1 { font-size: 2rem; }
.page-header p { color: var(--text-secondary); margin-top: 8px; font-size: 0.95rem; }
@media (max-width: 768px) { .page-header h1 { font-size: 1.6rem; } }
@media (max-width: 480px) { .page-header { margin-bottom: 20px; } .page-header h1 { font-size: 1.35rem; } }
.search-bar { display: flex; gap: 10px; margin-bottom: 20px; max-width: 700px; flex-wrap: wrap; }
.search-bar input { flex: 1; min-width: 200px; padding: 12px 18px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); font-size: 1rem; outline: none; transition: var(--transition); }
.search-bar input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79,70,229,0.2); }
.search-bar input::placeholder { color: var(--text-secondary); }
.search-info { color: var(--text-secondary); margin-bottom: 20px; font-size: 0.93rem; }
@media (max-width: 480px) { .search-bar { flex-direction: column; gap: 8px; } .search-bar input { min-width: 0; width: 100%; } .search-bar .btn { width: 100%; } .search-bar .btn-sm { width: 100%; text-align: center; } }

.file-list { display: flex; flex-direction: column; gap: 8px; }
.file-item { display: flex; align-items: center; justify-content: space-between; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 20px; gap: 16px; transition: var(--transition); }
.file-item:hover { border-color: var(--primary); background: var(--bg-card-hover); }
.file-info { display: flex; align-items: center; gap: 14px; min-width: 0; flex: 1; }
.file-icon { font-size: 1.6rem; flex-shrink: 0; }
.file-name { font-weight: 600; word-break: break-all; }
.file-meta { color: var(--text-secondary); font-size: 0.85rem; margin-top: 2px; }
@media (max-width: 768px) { .file-item { padding: 14px 16px; gap: 12px; } }
@media (max-width: 480px) { .file-item { flex-direction: column; align-items: stretch; gap: 12px; padding: 14px; } .file-info { gap: 10px; } .file-icon { font-size: 1.4rem; } .file-name { font-size: 0.93rem; } .file-meta { font-size: 0.8rem; } .file-item .btn-download { width: 100%; text-align: center; justify-content: center; padding: 12px; } }
.tag { display: inline-block; background: rgba(79,70,229,0.2); color: #a5b4fc; padding: 2px 10px; border-radius: 20px; font-size: 0.78rem; font-weight: 500; margin-right: 4px; white-space: nowrap; }
@media (max-width: 480px) { .tag { font-size: 0.72rem; padding: 2px 8px; } }
.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.video-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--primary); }
.video-thumb { position: relative; aspect-ratio: 16/9; background: #0a0a0a; overflow: hidden; }
.video-thumb img { width: 100%; height: 100%; object-fit: cover; }
.video-duration { position: absolute; bottom: 8px; right: 8px; background: rgba(0,0,0,0.8); color: #fff; padding: 3px 8px; border-radius: 4px; font-size: 0.8rem; font-weight: 600; }
.video-play-overlay { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); font-size: 3rem; opacity: 0; transition: var(--transition); text-shadow: 0 2px 12px rgba(0,0,0,0.5); pointer-events: none; }
.video-card:hover .video-play-overlay { opacity: 1; }
.video-info { padding: 16px; }
.video-title { font-size: 1rem; font-weight: 600; margin-bottom: 6px; }
.video-desc { color: var(--text-secondary); font-size: 0.88rem; margin-bottom: 8px; }
.video-tags { margin-bottom: 6px; }
.video-date { color: var(--text-secondary); font-size: 0.8rem; }
@media (max-width: 768px) { .video-grid { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 18px; } }
@media (max-width: 480px) { .video-grid { grid-template-columns: 1fr; gap: 14px; } .video-info { padding: 12px; } .video-title { font-size: 0.95rem; } }

.breadcrumb { color: var(--text-secondary); margin-bottom: 20px; font-size: 0.93rem; }
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb span { color: var(--text); }
.video-player-wrapper { background: #000; border-radius: var(--radius); overflow: hidden; margin-bottom: 28px; box-shadow: var(--shadow); }
.video-embed { position: relative; padding-bottom: 56.25%; height: 0; }
.video-embed iframe, .video-embed video { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: none; outline: none; }
.video-detail h1 { font-size: 1.6rem; margin-bottom: 12px; }
.video-meta-row { display: flex; flex-wrap: wrap; gap: 12px 16px; align-items: center; color: var(--text-secondary); margin-bottom: 20px; font-size: 0.9rem; }
.video-description { background: var(--bg-card); border-radius: var(--radius); padding: 24px; margin-bottom: 24px; line-height: 1.8; }
.video-description h3 { margin-bottom: 12px; }
@media (max-width: 768px) { .video-detail h1 { font-size: 1.35rem; } .video-description { padding: 18px; line-height: 1.7; } }
@media (max-width: 480px) { .breadcrumb { font-size: 0.85rem; margin-bottom: 14px; } .video-player-wrapper { margin-bottom: 18px; border-radius: 0; } .video-detail h1 { font-size: 1.15rem; } .video-meta-row { font-size: 0.82rem; gap: 8px 12px; } .video-description { padding: 14px; font-size: 0.9rem; margin-bottom: 18px; } }
.empty-state { text-align: center; padding: 60px 20px; }
.empty-icon { font-size: 4rem; margin-bottom: 16px; }
.empty-state h3 { margin-bottom: 8px; }
.empty-state p { color: var(--text-secondary); }
@media (max-width: 480px) { .empty-state { padding: 40px 14px; } .empty-icon { font-size: 3rem; } }
.footer { border-top: 1px solid var(--border); padding: 24px 0; text-align: center; color: var(--text-secondary); font-size: 0.88rem; }
@media (max-width: 480px) { .footer { padding: 18px 0; font-size: 0.8rem; } }
.qq-group-section { margin: 10px 0 40px; }
.qq-group-card { display: flex; align-items: center; justify-content: space-between; gap: 16px; background: linear-gradient(135deg, rgba(79,70,229,0.18), rgba(14,165,233,0.12)); border: 1px solid rgba(79,70,229,0.35); border-radius: var(--radius); padding: 24px 28px; }
.qq-group-left { flex: 1; min-width: 0; }
.qq-group-left h2 { font-size: 1.35rem; margin-bottom: 8px; }
.qq-group-number { font-size: 1.15rem; color: var(--text-secondary); margin-bottom: 6px; }
.qq-group-number strong { color: #22d3ee; font-size: 1.3rem; letter-spacing: 1px; }
.qq-group-tip { color: var(--text-secondary); font-size: 0.9rem; }
.qq-scan-label { color: var(--text-secondary); font-size: 0.85rem; margin-top: 10px; }
.qq-group-right { flex-shrink: 0; display: flex; align-items: center; }
.qq-qrcode { width: 200px; height: 200px; border-radius: 10px; border: 2px solid var(--border); object-fit: cover; }
@media (max-width: 600px) { .qq-group-card { flex-direction: column; text-align: center; padding: 20px; gap: 14px; } .qq-scan-label { display: none; } .qq-qrcode { width: 180px; height: 180px; } }
.uu-remote-card { display: flex; align-items: center; gap: 16px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 24px; margin-bottom: 0; transition: var(--transition); }
.uu-remote-card:hover { border-color: var(--primary); }
.uu-icon { font-size: 2rem; flex-shrink: 0; }
.uu-info { flex: 1; min-width: 0; }
.uu-info h3 { font-size: 1.05rem; margin-bottom: 3px; }
.uu-info p { color: var(--text-secondary); font-size: 0.88rem; }
.uu-btn { flex-shrink: 0; }
@media (max-width: 480px) { .uu-remote-card { flex-wrap: wrap; padding: 14px 16px; gap: 10px; } .uu-btn { width: 100%; } }
@media (hover: none) { .file-item:hover { border-color: var(--border); background: var(--bg-card); } .video-card:hover { transform: none; } .btn-primary:hover { box-shadow: none; } }
@media (max-width: 768px) { .nav-toggle { display: flex; } .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0; background: rgba(15,23,42,0.98); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); flex-direction: column; padding: 8px 20px 16px; gap: 4px; } .nav-links.open { display: flex; } .nav-links a { padding: 14px 16px; font-size: 1.05rem; } }
@media (max-width: 480px) { .nav-container { height: 56px; } .nav-links { top: 56px; padding: 6px 14px 14px; } .nav-links a { padding: 13px 14px; font-size: 1rem; } }
.desc-content { white-space: pre-line; }
.video-source-badge { display: none; }
.uu-video-btn{flex-shrink:0;margin-right:6px;}@media(max-width:480px){.uu-video-btn{width:100%%;margin-right:0;margin-bottom:6px;}}
.nav-back-btn{background:var(--bg-card);color:#22d3ee!important;font-weight:600;border:1px solid var(--border);margin-left:6px;}
.nav-back-btn:hover{background:var(--primary);color:#fff!important;border-color:var(--primary);}
@media(max-width:768px){.nav-back-btn{text-align:center;margin-left:0;}}

.uu-detail-card { display: flex; align-items: flex-start; gap: 16px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px 24px; margin-bottom: 0; transition: var(--transition); }
.uu-detail-card:hover { border-color: var(--primary); }
.uu-detail-card .uu-info p { color: var(--text-secondary); font-size: 0.88rem; line-height: 1.7; }
.uu-btns { display: flex; gap: 8px; flex-shrink: 0; align-items: center; }
@media (max-width: 600px) { .uu-detail-card { flex-wrap: wrap; padding: 16px; gap: 12px; } .uu-btns { width: 100%%; flex-wrap: wrap; } .uu-btns .btn { flex: 1; } }

.intro-card { background: linear-gradient(135deg, rgba(5,150,105,0.15), rgba(14,165,233,0.1)); border: 1px solid rgba(5,150,105,0.3); border-radius: var(--radius); padding: 24px 28px; margin-bottom: 0; }
.intro-header { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.intro-header h2 { font-size: 1.25rem; }
.intro-icon { font-size: 1.6rem; }
.intro-content { display: flex; flex-direction: column; gap: 10px; }
.intro-item { display: flex; align-items: center; gap: 10px; }
.intro-dot { font-size: 1rem; flex-shrink: 0; }
.intro-item strong { color: var(--text); }
.intro-sub { color: var(--text-secondary); font-size: 0.88rem; margin-left: 8px; }
@media (max-width: 480px) { .intro-card { padding: 18px 16px; } .intro-sub { display: block; margin-left: 0; margin-top: 2px; } }

.side-by-side { display: flex; gap: 16px; align-items: stretch; }
.side-by-side .section { flex: 1; min-width: 0; }
@media (max-width: 700px) { .side-by-side { flex-direction: column; gap: 0; } }

.chat-box { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; min-height: 300px; max-height: 55vh; overflow-y: auto; margin-bottom: 0; display: flex; flex-direction: column; gap: 12px; }
.chat-msg { max-width: 85%%; padding: 12px 16px; border-radius: 12px; font-size: 0.95rem; line-height: 1.6; word-break: break-word; white-space: pre-line; }
.chat-msg.bot { align-self: flex-start; background: #313244; color: #cdd6f4; border-bottom-left-radius: 4px; }
.chat-msg.user { align-self: flex-end; background: var(--primary); color: #fff; border-bottom-right-radius: 4px; }
.chat-input-row { display: flex; gap: 10px; margin-top: 14px; }
.chat-input { flex: 1; padding: 14px 18px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); font-size: 1rem; outline: none; }
.chat-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79,70,229,0.2); }
.chat-send-btn { flex-shrink: 0; }
@media (max-width: 480px) { .chat-box { min-height: 250px; max-height: 45vh; padding: 14px; } .chat-msg { font-size: 0.9rem; padding: 10px 14px; } .chat-input-row { gap: 6px; } .chat-input { padding: 12px 14px; font-size: 0.95rem; } }

.screen-search-box { display: flex; gap: 10px; margin-bottom: 16px; }
.screen-input { flex: 1; padding: 14px 18px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); font-size: 1.1rem; outline: none; letter-spacing: 4px; text-align: center; }
.screen-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79,70,229,0.2); }
.screen-input::placeholder { letter-spacing: 0; }
.screen-result { margin-bottom: 20px; }
.screen-ok { background: rgba(5,150,105,0.15); border: 1px solid rgba(5,150,105,0.3); border-radius: var(--radius); padding: 20px; text-align: center; color: #a6e3a1; font-size: 1.05rem; }
.screen-warn { color: #f38ba8; font-size: 1rem; margin-bottom: 10px; font-weight: 600; }
.report-form { display: flex; flex-direction: column; gap: 10px; }

.report-input { flex: 1; padding: 12px 16px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); font-size: 0.95rem; outline: none; min-width: 0; }
.report-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79,70,229,0.2); }



.tag-picker { display: flex; flex-wrap: wrap; gap: 8px; } .tag-chip { display: inline-block; padding: 8px 16px; border-radius: 20px; background: var(--bg-card); border: 2px solid var(--border); color: var(--text-secondary); font-size: 0.9rem; cursor: pointer; transition: var(--transition); user-select: none; } .tag-chip:hover { border-color: var(--primary); color: var(--text); } .tag-chip.selected { background: var(--primary); border-color: var(--primary); color: #fff; } .screen-id-input { letter-spacing: 4px; text-align: center; } .screen-id-input::placeholder { letter-spacing: 0; text-align: left; } .report-msg { margin-top: 4px; font-size: 0.9rem; }
#reportId { letter-spacing: 4px; text-align: center; }
#reportId::placeholder { letter-spacing: 0; text-align: left; }
@media (max-width: 600px) { .report-row { flex-direction: column; } .report-select { min-width: 0; } .screen-search-box { flex-direction: column; } .screen-search-box .btn { width: 100%; } .screen-input { letter-spacing: 2px; } }

.screen-layout { display: block; }
.screen-full { width: 100%; }






.carousel-item { display: none; font-size: 0.93rem; color: var(--text); padding: 4px 0; align-items: center; gap: 8px; flex-wrap: wrap; }

@media (max-width: 480px) { .carousel-box { padding: 12px 14px; min-height: 44px; } .carousel-item { font-size: 0.85rem; gap: 4px; } }

.filter-row { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; align-items: center; }
.filter-chip { font-size: 0.8rem!important; padding: 5px 12px!important; }
@media (max-width: 480px) { .filter-row { gap: 4px; } .filter-chip { font-size: 0.75rem!important; padding: 4px 10px!important; } }