:root {
  --bg-1: #e8ecf5;
  --bg-2: #d5dbf0;
  --bg-3: #ddd6f5;
  --glass: rgba(255, 255, 255, 0.55);
  --glass-2: rgba(255, 255, 255, 0.35);
  --glass-border: rgba(255, 255, 255, 0.6);
  --glass-shadow: 0 8px 32px rgba(31, 38, 135, 0.1);
  --glass-shadow-hi: 0 12px 40px rgba(31, 38, 135, 0.16);
  --text: #1a1d2e;
  --text-dim: #5a6080;
  --muted: #9298b0;
  --accent: #6366f1;
  --accent-light: #818cf8;
  --accent-2: #a855f7;
  --accent-3: #ec4899;
  --success: #10b981;
  --warn: #f59e0b;
  --danger: #ef4444;
  --radius: 18px;
  --radius-sm: 10px;
  --sans: "Microsoft YaHei", "微软雅黑", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SF Mono", "JetBrains Mono", "Cascadia Code", "Consolas", monospace;
}

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

body {
  font-family: var(--sans);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
  background: linear-gradient(135deg, #e8ecf5 0%, #d5dbf0 30%, #ddd6f5 60%, #c9d6f5 100%);
  background-attachment: fixed;
}
body::before {
  content: ''; position: fixed; top: -10%; left: 60%;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.12), transparent 65%);
  border-radius: 50%; z-index: 0; pointer-events: none;
  animation: float1 20s ease-in-out infinite;
}
body::after {
  content: ''; position: fixed; bottom: -10%; left: -5%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.10), transparent 65%);
  border-radius: 50%; z-index: 0; pointer-events: none;
  animation: float2 25s ease-in-out infinite;
}
@keyframes float1 { 0%,100%{transform:translate(0,0)} 50%{transform:translate(-40px,30px)} }
@keyframes float2 { 0%,100%{transform:translate(0,0)} 50%{transform:translate(50px,-40px)} }

/* 顶栏 */
.topbar {
  position: relative; z-index: 10;
  background: var(--glass);
  backdrop-filter: blur(24px) saturate(1.2);
  -webkit-backdrop-filter: blur(24px) saturate(1.2);
  border-bottom: 1px solid var(--glass-border);
  padding: 14px 28px;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
  box-shadow: 0 1px 0 rgba(255,255,255,0.5) inset, var(--glass-shadow);
}
.brand { display: flex; align-items: center; gap: 14px; }
.logo-ring {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
}
.logo-core { font-size: 18px; font-weight: 800; color: #fff; }
.brand h1 {
  font-size: 18px; font-weight: 700;
  background: linear-gradient(135deg, #1a1d2e, #4338ca);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.brand p { font-size: 11px; color: var(--text-dim); margin-top: 2px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px; border: 1px solid var(--glass-border);
  border-radius: 10px; font-size: 13px; font-weight: 600;
  cursor: pointer; text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  background: var(--glass-2); backdrop-filter: blur(10px);
  color: var(--text); letter-spacing: 0.3px;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border: none; color: #fff;
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
}
.btn-primary:hover { box-shadow: 0 8px 24px rgba(99, 102, 241, 0.4); transform: translateY(-1px); }
.upload-btn { position: relative; overflow: hidden; }
.upload-btn::before {
  content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
  transition: left 0.5s ease;
}
.upload-btn:hover::before { left: 100%; }
.btn-ghost { background: var(--glass-2); color: var(--text-dim); }
.btn-ghost:hover { color: var(--accent); border-color: var(--accent-light); }
.btn-sm-tall { padding: 9px 16px; font-size: 13px; }

/* 容器 */
.container { position: relative; z-index: 2; max-width: 1400px; margin: 0 auto; padding: 20px; }

/* 卡片 */
.card {
  background: var(--glass);
  backdrop-filter: blur(24px) saturate(1.1);
  -webkit-backdrop-filter: blur(24px) saturate(1.1);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 18px 22px; margin-bottom: 14px;
  box-shadow: var(--glass-shadow);
  transition: all 0.3s;
}
.card:hover { box-shadow: var(--glass-shadow-hi); }
.card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.card-head h2 { font-size: 14px; font-weight: 700; display: flex; align-items: center; gap: 8px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: linear-gradient(135deg, var(--accent), var(--accent-2)); }
.hint { font-size: 12px; color: var(--muted); font-weight: 500; }

/* 筛选区 */
.filter-bar { padding: 14px 22px; }
.filter-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.filter-group { display: flex; align-items: center; gap: 8px; }
.filter-label { font-size: 12px; font-weight: 700; color: var(--text-dim); white-space: nowrap; }
.filter-divider { width: 1px; height: 24px; background: rgba(0,0,0,0.08); }
.tab-group { display: flex; gap: 4px; flex-wrap: wrap; }
.tab {
  padding: 6px 14px; border-radius: 8px;
  background: rgba(255,255,255,0.3); border: 1px solid rgba(255,255,255,0.4);
  cursor: pointer; font-size: 12px; font-weight: 600; color: var(--text-dim);
  transition: all 0.2s;
}
.tab:hover { color: var(--accent); border-color: var(--accent-light); }
.tab.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; border-color: transparent;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.25);
}

/* 指标切换按钮 */
.metric-btns { display: flex; gap: 6px; margin-bottom: 10px; }
.metric-btn {
  padding: 5px 14px; border-radius: 20px;
  background: rgba(255,255,255,0.35); border: 1px solid rgba(255,255,255,0.5);
  cursor: pointer; font-size: 12px; font-weight: 600; color: var(--text-dim);
  transition: all 0.25s ease; font-family: var(--sans); white-space: nowrap;
}
.metric-btn:hover { color: var(--accent); border-color: var(--accent-light); transform: translateY(-1px); }
.metric-btn.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; border-color: transparent;
  box-shadow: 0 2px 10px rgba(99, 102, 241, 0.3);
}

.date-input {
  padding: 6px 10px; border-radius: 8px;
  border: 1px solid var(--glass-border); background: rgba(255,255,255,0.4);
  font-size: 12px; color: var(--text); font-family: var(--sans); outline: none;
}
.date-input:focus { border-color: var(--accent); }
.date-sep { font-size: 12px; color: var(--muted); }
.btn-sm {
  padding: 5px 12px; font-size: 12px; border-radius: 8px;
  border: 1px solid var(--glass-border); background: rgba(255,255,255,0.4);
  cursor: pointer; color: var(--text-dim); font-weight: 600; transition: all 0.2s;
}
.btn-sm:hover { border-color: var(--accent); color: var(--accent); }

.filter-info {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 10px; padding-top: 8px; border-top: 1px solid rgba(0,0,0,0.04);
}
.filter-info span { font-size: 12px; color: var(--muted); }
.data-count { font-weight: 700; color: var(--accent) !important; }

/* KPI */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin-bottom: 14px; }
.kpi {
  background: var(--glass); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border); border-radius: var(--radius);
  padding: 16px 18px; position: relative; overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}
.kpi::before { content:''; position:absolute; left:0; top:0; bottom:0; width:4px; border-radius:4px; }
.kpi.blue::before { background: linear-gradient(180deg, #6366f1, #818cf8); }
.kpi.orange::before { background: linear-gradient(180deg, #f59e0b, #fbbf24); }
.kpi.green::before { background: linear-gradient(180deg, #10b981, #34d399); }
.kpi.purple::before { background: linear-gradient(180deg, #a855f7, #c084fc); }
.kpi.pink::before { background: linear-gradient(180deg, #ec4899, #f472b6); }
.kpi::after { content:''; position:absolute; right:-30px; top:-30px; width:90px; height:90px; border-radius:50%; }
.kpi.blue::after { background: radial-gradient(circle, rgba(99,102,241,0.08), transparent 70%); }
.kpi.orange::after { background: radial-gradient(circle, rgba(245,158,11,0.08), transparent 70%); }
.kpi.green::after { background: radial-gradient(circle, rgba(16,185,129,0.08), transparent 70%); }
.kpi.purple::after { background: radial-gradient(circle, rgba(168,85,247,0.08), transparent 70%); }
.kpi.pink::after { background: radial-gradient(circle, rgba(236,72,153,0.08), transparent 70%); }
.kpi:hover { transform: translateY(-2px); box-shadow: var(--glass-shadow-hi); }
.kpi .label { font-size: 12px; color: var(--text-dim); margin-bottom: 4px; font-weight: 500; }
.kpi .value { font-size: 26px; font-weight: 800; font-family: var(--mono); }
.kpi.blue .value { color: #4338ca; }
.kpi.orange .value { color: #b45309; }
.kpi.green .value { color: #047857; }
.kpi.purple .value { color: #7c3aed; }
.kpi.pink .value { color: #be185d; }
.kpi .sub { font-size: 11px; color: var(--muted); margin-top: 3px; }

/* 网格 */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
@media (max-width: 900px) { .grid-2 { grid-template-columns: 1fr; } }

.chart-wrap { position: relative; height: 250px; }

/* Top */
.top-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 8px; }
.top-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; background: rgba(255,255,255,0.35);
  border: 1px solid rgba(255,255,255,0.5); border-radius: var(--radius-sm);
  transition: all 0.25s;
}
.top-item:hover { background: rgba(255,255,255,0.55); box-shadow: 0 4px 16px rgba(99,102,241,0.08); }
.top-rank { width: 28px; height: 28px; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 13px; color: #fff; flex-shrink: 0; }
.rank-1 { background: linear-gradient(135deg, #f59e0b, #fbbf24); box-shadow: 0 4px 12px rgba(245,158,11,0.3); }
.rank-2 { background: linear-gradient(135deg, #9298b0, #b0b8d0); }
.rank-3 { background: linear-gradient(135deg, #a78b5a, #c4a574); }
.top-info { flex: 1; min-width: 0; }
.top-title { font-weight: 600; font-size: 13px; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.top-meta { font-size: 11px; color: var(--muted); margin-top: 2px; }
.top-plays { font-size: 16px; font-weight: 800; font-family: var(--mono); background: linear-gradient(135deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* 表格 */
.table-wrap { overflow-x: auto; border-radius: var(--radius-sm); }
table { width: 100%; border-collapse: collapse; font-size: 12px; }
thead th {
  background: linear-gradient(135deg, rgba(99,102,241,0.08), rgba(168,85,247,0.06));
  padding: 10px 10px; text-align: left; font-weight: 700; color: var(--accent);
  border-bottom: 2px solid rgba(99,102,241,0.12); white-space: nowrap; font-size: 11px;
}
thead th.num { text-align: right; }
thead th.sortable { cursor: pointer; user-select: none; }
thead th.sortable:hover { color: #a855f7; }
.sort-arrow { font-size: 10px; opacity: 0.7; }
tbody td { padding: 8px 10px; border-bottom: 1px solid rgba(0,0,0,0.04); color: var(--text); font-size: 12px; }
tbody td.num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; font-weight: 600; }
tbody tr { transition: background 0.15s; }
tbody tr:hover { background: rgba(99,102,241,0.04); }
tbody tr:nth-child(even) { background: rgba(255,255,255,0.15); }
.tag-acc { display: inline-block; padding: 2px 10px; border-radius: 6px; font-size: 10px; font-weight: 700; white-space: nowrap; }
.video-link { color: var(--accent); text-decoration: none; font-size: 11px; font-weight: 600; }
.video-link:hover { text-decoration: underline; }
.video-link.empty { color: var(--muted); font-weight: 400; }
.td-title { max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.table-tools { display: flex; gap: 8px; align-items: center; }
.search-input {
  padding: 6px 12px; border-radius: 8px; border: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.4); font-size: 12px; color: var(--text);
  font-family: var(--sans); outline: none; width: 200px;
}
.search-input:focus { border-color: var(--accent); }

/* 分页 */
.pagination { display: flex; justify-content: center; align-items: center; gap: 4px; margin-top: 14px; flex-wrap: wrap; }
.page-btn {
  padding: 6px 12px; border-radius: 8px; border: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.3); cursor: pointer; font-size: 12px; font-weight: 600;
  color: var(--text-dim); transition: all 0.2s;
}
.page-btn:hover { border-color: var(--accent); color: var(--accent); }
.page-btn.active { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; border-color: transparent; }
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.page-info { font-size: 12px; color: var(--muted); margin: 0 8px; }
.page-size-wrap { font-size: 12px; color: var(--text-dim); display: flex; align-items: center; gap: 4px; margin: 0 8px; }
.page-size {
  padding: 4px 8px; border-radius: 6px; border: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.5); font-size: 12px; color: var(--text); font-family: var(--sans); outline: none; cursor: pointer;
}
.page-jump { font-size: 12px; color: var(--text-dim); display: flex; align-items: center; gap: 4px; margin-left: 8px; }
.page-jump-input {
  width: 44px; padding: 4px 6px; border-radius: 6px; border: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.5); font-size: 12px; color: var(--text); font-family: var(--sans); outline: none; text-align: center;
}
.page-jump-input:focus { border-color: var(--accent); }

/* 弹窗 */
.modal { position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center; }
.modal.hidden { display: none; }
.modal-overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.3); backdrop-filter: blur(4px); }
.modal-content {
  position: relative; z-index: 1;
  background: var(--glass); backdrop-filter: blur(24px) saturate(1.2);
  -webkit-backdrop-filter: blur(24px) saturate(1.2);
  border: 1px solid var(--glass-border); border-radius: var(--radius);
  width: 90%; max-width: 540px; max-height: 80vh; overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 18px 22px; border-bottom: 1px solid rgba(0,0,0,0.05); }
.modal-head h2 { font-size: 16px; font-weight: 700; }
.modal-close { border: none; background: none; font-size: 18px; cursor: pointer; color: var(--muted); padding: 4px 8px; border-radius: 6px; }
.modal-close:hover { background: rgba(0,0,0,0.05); }
.modal-body { padding: 18px 22px; }
.account-form { display: flex; gap: 8px; margin-bottom: 16px; }
.text-input {
  flex: 1; padding: 8px 12px; border-radius: 10px; border: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.4); font-size: 13px; color: var(--text);
  font-family: var(--sans); outline: none;
}
.text-input:focus { border-color: var(--accent); }
.account-list { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }
.account-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 12px; background: rgba(255,255,255,0.35);
  border: 1px solid rgba(255,255,255,0.5); border-radius: var(--radius-sm);
}
.account-item .acc-name { font-weight: 600; font-size: 13px; color: var(--text); }
.account-item .actions-mini { display: flex; gap: 4px; }
.upload-section { border-top: 1px solid rgba(0,0,0,0.05); padding-top: 16px; }
.upload-section h3 { font-size: 14px; font-weight: 700; margin-bottom: 6px; }
.upload-form { display: flex; gap: 8px; margin-top: 8px; }
.select-input {
  flex: 1; padding: 8px 12px; border-radius: 10px; border: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.4); font-size: 13px; color: var(--text);
  font-family: var(--sans); cursor: pointer; outline: none;
}
.file-section { border-top: 1px solid rgba(0,0,0,0.05); padding-top: 16px; margin-top: 16px; }
.file-section h3 { font-size: 14px; font-weight: 700; margin-bottom: 10px; }
.file-list { display: flex; flex-direction: column; gap: 6px; }
.file-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 12px; background: rgba(255,255,255,0.3);
  border: 1px solid rgba(255,255,255,0.4); border-radius: var(--radius-sm);
}
.file-item .file-name { font-size: 12px; font-weight: 600; }
.file-item .file-info { font-size: 10px; color: var(--muted); }
.file-tag { display: inline-block; padding: 1px 6px; border-radius: 4px; font-size: 10px; font-weight: 600; background: rgba(99,102,241,0.12); color: var(--accent); margin-left: 4px; }

/* 批量上传进度 */
.upload-progress { display: flex; flex-direction: column; gap: 6px; margin-top: 8px; }
.upload-progress-item {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 12px; border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.3); border: 1px solid rgba(255,255,255,0.4);
  font-size: 12px;
}
.upload-progress-item .up-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 600; }
.upload-progress-item .up-status { font-size: 11px; font-weight: 700; white-space: nowrap; }
.upload-progress-item .up-status.pending { color: var(--muted); }
.upload-progress-item .up-status.uploading { color: var(--accent); }
.upload-progress-item .up-status.success { color: var(--success); }
.upload-progress-item .up-status.error { color: var(--danger); }

/* 空状态 */
.empty-state { text-align: center; padding: 60px 20px; color: var(--muted); }
.empty-icon { font-size: 48px; margin-bottom: 12px; }
.empty-state h2 { font-size: 16px; margin-bottom: 6px; color: var(--text-dim); }
.empty-state p { font-size: 13px; }

.hidden { display: none !important; }

/* Toast */
.toast {
  position: fixed; bottom: 24px; left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; padding: 10px 24px; border-radius: 12px;
  font-size: 13px; font-weight: 600; opacity: 0;
  transition: all 0.3s; z-index: 200; pointer-events: none;
  box-shadow: 0 8px 32px rgba(99,102,241,0.3);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.success { background: linear-gradient(135deg, #10b981, #34d399); }
.toast.error { background: linear-gradient(135deg, #ef4444, #f87171); }

/* 滚动条 */
.table-wrap::-webkit-scrollbar, .modal-content::-webkit-scrollbar { height: 5px; width: 5px; }
.table-wrap::-webkit-scrollbar-thumb, .modal-content::-webkit-scrollbar-thumb { background: rgba(99,102,241,0.2); border-radius: 3px; }
.table-wrap::-webkit-scrollbar-track, .modal-content::-webkit-scrollbar-track { background: transparent; }