/* ============================================================
   阿罗云盘 AluoDrive · 全局样式
   企业化简约：白底、细边框、单一强调色、克制动效、rem 字号（无障碍缩放）
   ============================================================ */

:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --border: #e5e7eb;
  --border-strong: #d1d5db;
  --text: #1f2937;
  --text-2: #4b5563;
  --text-3: #6b7280;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-soft: #eff6ff;
  --danger: #dc2626;
  --success: #16a34a;
  --radius: 8px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 1px 3px rgba(16, 24, 40, .06);
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "SF Mono", "JetBrains Mono", Consolas, "Courier New", monospace;
}

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

html { font-size: 16px; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

button { font-family: inherit; cursor: pointer; }

/* ---------- 顶栏 ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  max-width: 1180px; margin: 0 auto; padding: 0 20px;
  height: 60px; display: flex; align-items: center; gap: 20px;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; }
.brand:hover { text-decoration: none; }
.brand-logo {
  width: 34px; height: 34px; border-radius: 8px;
  background: var(--accent); color: #fff;
  display: flex; align-items: center; justify-content: center;
}
.brand-name { font-size: 1.125rem; font-weight: 600; letter-spacing: .01em; }
.brand-sub { font-size: .75rem; color: var(--text-3); }

.nav { display: flex; gap: 4px; margin-left: 8px; }
.nav a {
  color: var(--text-2); padding: 6px 12px; border-radius: 6px;
  font-size: .9rem;
}
.nav a:hover { background: var(--bg); text-decoration: none; color: var(--text); }
.nav a.active { background: var(--accent-soft); color: var(--accent); font-weight: 500; }

.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.admin-chip {
  display: flex; align-items: center; gap: 6px;
  background: var(--accent-soft); color: var(--accent);
  border-radius: 999px; padding: 4px 12px; font-size: .8rem;
}
.admin-chip .countdown { color: var(--text-3); font-size: .75rem; }

.btn {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--border-strong); background: var(--surface);
  color: var(--text); border-radius: 6px; padding: 8px 14px;
  font-size: .875rem; transition: background .15s, border-color .15s;
}
.btn:hover { background: var(--bg); }
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-danger { color: var(--danger); border-color: #fca5a5; }
.btn-danger:hover { background: #fef2f2; }
.btn-ghost { border-color: transparent; background: transparent; color: var(--text-2); }
.btn-ghost:hover { background: var(--bg); color: var(--text); }
.btn-sm { padding: 4px 10px; font-size: .8rem; border-radius: 6px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ---------- 主区 ---------- */
.container { max-width: 1180px; margin: 0 auto; padding: 24px 20px 60px; }

.page-head { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
.page-title { font-size: 1.25rem; font-weight: 600; }
.page-desc { color: var(--text-3); font-size: .875rem; }

.toolbar { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; }
.search-box {
  display: flex; align-items: center; gap: 8px; flex: 1; min-width: 200px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 6px; padding: 8px 12px;
}
.search-box svg { width: 16px; height: 16px; color: var(--text-3); flex: none; }
.search-box input { border: none; outline: none; background: none; font-size: .875rem; flex: 1; color: var(--text); }
.toolbar-right { display: flex; gap: 8px; align-items: center; }

/* 上传进度 */
.upload-bar { width: 100%; height: 6px; background: var(--border); border-radius: 3px; overflow: hidden; margin-top: 8px; display: none; }
.upload-bar.active { display: block; }
.upload-bar > i { display: block; height: 100%; width: 0; background: var(--accent); transition: width .2s; }
.upload-hint { font-size: .8rem; color: var(--text-3); }

/* ---------- 文件网格 ---------- */
.file-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 14px;
}
.file-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 14px; display: flex; flex-direction: column; gap: 10px;
  transition: border-color .15s, box-shadow .15s;
  cursor: pointer;
}
.file-card:hover { border-color: var(--border-strong); box-shadow: 0 4px 10px rgba(16,24,40,.08); }
.file-card.dragging { opacity: .5; border-style: dashed; }
.file-card.drop-target { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-soft); }

.file-top { display: flex; align-items: flex-start; gap: 10px; }
.file-icon {
  width: 40px; height: 40px; border-radius: 8px; flex: none;
  display: flex; align-items: center; justify-content: center; color: #fff;
}
.file-icon svg { width: 20px; height: 20px; }
.file-name { font-size: .9rem; font-weight: 500; word-break: break-all; line-height: 1.4; }
.file-meta { font-size: .78rem; color: var(--text-3); display: flex; flex-wrap: wrap; gap: 4px 10px; }
.file-actions { display: flex; gap: 6px; flex-wrap: wrap; margin-top: auto; }
.file-actions .btn { flex: 1; justify-content: center; padding: 6px 8px; }

/* 管理员行控制 */
.admin-row-controls { display: flex; gap: 4px; align-items: center; padding-top: 8px; border-top: 1px dashed var(--border); }
.admin-row-controls .btn-ghost { padding: 4px 6px; }
.drag-handle { cursor: grab; color: var(--text-3); display: flex; align-items: center; }
.drag-handle:active { cursor: grabbing; }

/* ---------- 空态 ---------- */
.empty { text-align: center; padding: 60px 20px; color: var(--text-3); }
.empty svg { width: 56px; height: 56px; color: #cbd5e1; margin-bottom: 12px; }
.empty p { font-size: .95rem; }

/* ---------- 页脚 ---------- */
.footer {
  border-top: 1px solid var(--border); background: var(--surface);
  color: var(--text-3); font-size: .8rem; text-align: center; padding: 18px;
}

/* ---------- 模态 ---------- */
.modal-mask {
  position: fixed; inset: 0; background: rgba(15, 23, 42, .45);
  display: none; align-items: center; justify-content: center; z-index: 200;
  padding: 20px;
}
.modal-mask.open { display: flex; }
.modal {
  background: var(--surface); border-radius: 12px; width: 100%; max-width: 480px;
  max-height: 88vh; overflow: auto; box-shadow: 0 20px 40px rgba(16,24,40,.2);
}
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--border); }
.modal-title { font-size: 1rem; font-weight: 600; }
.modal-body { padding: 20px; }
.modal-foot { padding: 14px 20px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }

.field { margin-bottom: 14px; }
.field label { display: block; font-size: .82rem; color: var(--text-2); margin-bottom: 6px; }
.input, .select, textarea.input {
  width: 100%; border: 1px solid var(--border-strong); border-radius: 6px;
  padding: 9px 12px; font-size: .875rem; font-family: inherit; color: var(--text); background: var(--surface);
  outline: none;
}
.input:focus, .select:focus, textarea.input:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-soft); }
textarea.input { resize: vertical; min-height: 80px; }

/* 详情表 */
.meta-table { width: 100%; border-collapse: collapse; font-size: .875rem; }
.meta-table td { padding: 8px 6px; border-bottom: 1px solid var(--border); vertical-align: top; }
.meta-table td:first-child { color: var(--text-3); width: 96px; white-space: nowrap; }
.meta-table tr:last-child td { border-bottom: none; }

/* 开关 */
.switch-row { display: flex; align-items: center; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--border); }
.switch-row:last-child { border-bottom: none; }
.switch-label { font-size: .9rem; }
.switch-desc { font-size: .76rem; color: var(--text-3); }
.switch { position: relative; width: 44px; height: 24px; flex: none; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch i {
  position: absolute; inset: 0; background: var(--border-strong); border-radius: 999px; transition: background .2s;
}
.switch i::after {
  content: ""; position: absolute; top: 2px; left: 2px; width: 20px; height: 20px;
  background: #fff; border-radius: 50%; transition: transform .2s; box-shadow: 0 1px 2px rgba(0,0,0,.2);
}
.switch input:checked + i { background: var(--accent); }
.switch input:checked + i::after { transform: translateX(20px); }

/* ---------- Toast ---------- */
.toast-wrap { position: fixed; top: 70px; right: 20px; z-index: 400; display: flex; flex-direction: column; gap: 8px; }
.toast {
  background: var(--text); color: #fff; border-radius: 8px; padding: 10px 16px;
  font-size: .85rem; box-shadow: 0 6px 16px rgba(0,0,0,.18); display: flex; gap: 8px; align-items: center;
  animation: toast-in .2s ease;
}
.toast.error { background: var(--danger); }
.toast.success { background: var(--success); }
@keyframes toast-in { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }

/* ---------- 无障碍工具栏 ---------- */
.a11y-bar {
  position: fixed; right: 14px; top: 50%; transform: translateY(-50%); z-index: 300;
  display: flex; flex-direction: column; gap: 6px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  padding: 8px 6px; box-shadow: 0 6px 20px rgba(16,24,40,.12);
}
.a11y-bar button {
  width: 40px; height: 40px; border-radius: 8px; border: none; background: transparent;
  color: var(--text-2); display: flex; align-items: center; justify-content: center; position: relative;
}
.a11y-bar button:hover { background: var(--bg); color: var(--accent); }
.a11y-bar button.on { background: var(--accent-soft); color: var(--accent); }
.a11y-bar svg { width: 20px; height: 20px; }
.a11y-bar .tip {
  position: absolute; right: 46px; top: 50%; transform: translateY(-50%);
  background: var(--text); color: #fff; font-size: .72rem; padding: 4px 8px; border-radius: 5px;
  white-space: nowrap; opacity: 0; pointer-events: none; transition: opacity .15s;
}
.a11y-bar button:hover .tip { opacity: 1; }

/* 放大镜 */
.lens {
  position: fixed; width: 190px; height: 190px; border-radius: 50%;
  border: 2px solid rgba(37, 99, 235, .55); box-shadow: 0 0 0 2px #fff, 0 8px 24px rgba(0,0,0,.2);
  overflow: hidden; pointer-events: none; z-index: 350; display: none; background: #fff;
}
.lens-inner { position: fixed; top: 0; left: 0; transform-origin: 0 0; pointer-events: none; }

/* 翻译面板 */
.translate-panel {
  position: fixed; right: 20px; bottom: 20px; z-index: 360; display: none;
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  box-shadow: 0 10px 30px rgba(16,24,40,.18); width: min(420px, calc(100vw - 40px));
}
.translate-panel.open { display: block; }
.translate-panel-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; border-bottom: 1px solid var(--border); font-size: .85rem; font-weight: 500;
}
.translate-panel-head button { border: none; background: none; color: var(--text-3); padding: 2px 4px; }
.translate-panel-body { padding: 12px 14px; font-size: .875rem; max-height: 220px; overflow: auto; word-break: break-all; }
.translate-panel-foot { padding: 8px 14px; border-top: 1px solid var(--border); display: flex; gap: 8px; justify-content: flex-end; }

/* ---------- 预览页 ---------- */
.preview-shell { max-width: 1080px; margin: 0 auto; padding: 18px 20px 40px; }
.preview-head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.preview-title { font-size: 1rem; font-weight: 600; word-break: break-all; }
.preview-meta { color: var(--text-3); font-size: .8rem; }
.preview-box {
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  min-height: 420px; padding: 16px; overflow: auto;
}
.preview-box.nopad { padding: 0; }
.preview-fallback { text-align: center; padding: 60px 20px; color: var(--text-3); }
.preview-fallback svg { width: 48px; height: 48px; color: #cbd5e1; margin-bottom: 10px; }
.preview-loading { text-align: center; padding: 60px 20px; color: var(--text-3); }

/* PDF 翻页条 */
.pdf-nav { display: flex; align-items: center; gap: 10px; margin: 10px 0; }
.pdf-nav button { border: 1px solid var(--border-strong); background: var(--surface); border-radius: 6px; padding: 5px 12px; font-size: .82rem; }
.pdf-nav button:hover { background: var(--bg); }
.pdf-nav span { font-size: .82rem; color: var(--text-2); }
.pdf-page { margin: 0 auto 12px; box-shadow: var(--shadow); background: #fff; max-width: 100%; }

/* 表格（Excel/CSV） */
.data-table-wrap { overflow: auto; }
.data-table { border-collapse: collapse; width: 100%; font-size: .82rem; }
.data-table th, .data-table td { border: 1px solid var(--border); padding: 6px 10px; text-align: left; white-space: nowrap; }
.data-table th { background: var(--bg); font-weight: 600; position: sticky; top: 0; }

/* 文本预览 */
.txt-preview { font-family: var(--mono); font-size: .85rem; white-space: pre-wrap; word-break: break-word; line-height: 1.7; }

/* 视频播放器容器 */
.video-wrap { max-width: 900px; margin: 0 auto; }
.video-wrap video { width: 100%; border-radius: 10px; background: #000; }

/* ---------- 连播页 ---------- */
.playlist-layout { display: grid; grid-template-columns: 1fr 300px; gap: 18px; }
.playlist-main .video-wrap { position: sticky; top: 76px; }
.queue { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 12px; max-height: 70vh; overflow: auto; }
.queue-title { font-size: .85rem; font-weight: 600; margin-bottom: 8px; color: var(--text-2); }
.queue-item {
  display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 8px; cursor: pointer;
  font-size: .82rem; color: var(--text-2);
}
.queue-item:hover { background: var(--bg); }
.queue-item.active { background: var(--accent-soft); color: var(--accent); font-weight: 500; }
.queue-item .q-ic { flex: none; width: 26px; height: 26px; border-radius: 6px; background: var(--bg); display: flex; align-items: center; justify-content: center; }
.queue-item .q-ic svg { width: 14px; height: 14px; }
.queue-item .q-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.playlist-controls { display: flex; gap: 8px; align-items: center; margin-top: 10px; flex-wrap: wrap; }

@media (max-width: 860px) {
  .playlist-layout { grid-template-columns: 1fr; }
  .playlist-main .video-wrap { position: static; }
}

/* ---------- 二维码页 ---------- */
.qr-layout { display: grid; grid-template-columns: 1fr 360px; gap: 20px; align-items: start; }
.qr-preview-box {
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px;
  padding: 24px; display: flex; flex-direction: column; align-items: center; gap: 14px;
  min-height: 420px; justify-content: center;
}
.qr-preview-box canvas { max-width: 100%; height: auto; box-shadow: var(--shadow); border-radius: 8px; }
.qr-panel { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 18px; }
.qr-panel h3 { font-size: .9rem; font-weight: 600; margin-bottom: 14px; }
.qr-row { margin-bottom: 12px; }
.qr-row label { display: block; font-size: .8rem; color: var(--text-2); margin-bottom: 5px; }
.qr-row .select, .qr-row .input { width: 100%; }
.qr-actions { display: flex; gap: 8px; margin-top: 16px; flex-wrap: wrap; }
.seg { display: flex; gap: 0; border: 1px solid var(--border-strong); border-radius: 6px; overflow: hidden; }
.seg button {
  flex: 1; border: none; background: var(--surface); padding: 8px 6px; font-size: .8rem; color: var(--text-2);
}
.seg button.on { background: var(--accent); color: #fff; }
.range-row { display: flex; align-items: center; gap: 10px; }
.range-row input[type=range] { flex: 1; accent-color: var(--accent); }
.range-row .val { width: 44px; text-align: right; font-size: .8rem; color: var(--text-2); font-family: var(--mono); }

@media (max-width: 900px) {
  .qr-layout { grid-template-columns: 1fr; }
}

/* ---------- 通用小件 ---------- */
.muted { color: var(--text-3); }
.small { font-size: .8rem; }
.duration-badge {
  display: inline-flex; align-items: center; gap: 4px; font-size: .74rem; color: var(--text-2);
  background: var(--bg); border-radius: 4px; padding: 1px 6px;
}
.badge-cat {
  font-size: .72rem; padding: 1px 8px; border-radius: 999px; color: #fff;
}
.copy-link-input { font-family: var(--mono); font-size: .8rem; }

kbd { background: var(--bg); border: 1px solid var(--border-strong); border-radius: 4px; padding: 0 5px; font-size: .75rem; }