:root {
  --bg: #f4f6f9;
  --card: #ffffff;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --danger: #dc2626;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e5e7eb;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "Segoe UI", "Microsoft YaHei", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}
a { color: var(--primary); text-decoration: none; }

/* ---- 登录页 ---- */
.login-wrap {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: 24px;
}
.login-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 40px 36px; width: 100%; max-width: 380px;
  box-shadow: 0 8px 24px rgba(0,0,0,.06);
}
.login-card h1 { font-size: 22px; margin-bottom: 4px; }
.login-card .sub { color: var(--muted); font-size: 13px; margin-bottom: 24px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13px; margin-bottom: 6px; color: var(--muted); }
.field input {
  width: 100%; padding: 10px 12px; font-size: 14px;
  border: 1px solid var(--border); border-radius: 8px; outline: none;
}
.field input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.btn {
  display: inline-block; padding: 10px 18px; font-size: 14px; cursor: pointer;
  background: var(--primary); color: #fff; border: none; border-radius: 8px;
}
.btn:hover { background: var(--primary-dark); }
.btn:disabled { opacity: .6; cursor: not-allowed; }
.btn-block { width: 100%; }
.msg-error { color: var(--danger); font-size: 13px; margin-top: 12px; min-height: 18px; }

/* ---- 主页面 ---- */
.topbar {
  background: var(--card); border-bottom: 1px solid var(--border);
  padding: 14px 28px; display: flex; align-items: center; gap: 16px;
}
.topbar h1 { font-size: 18px; }
.topbar .url-hint { color: var(--muted); font-size: 12px; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.topbar .who { font-size: 13px; color: var(--muted); }
.topbar .who b { color: var(--text); }
.btn-ghost {
  padding: 6px 14px; font-size: 13px; cursor: pointer; border-radius: 8px;
  background: transparent; color: var(--muted); border: 1px solid var(--border);
}
.btn-ghost:hover { color: var(--danger); border-color: var(--danger); }
.container { max-width: 960px; margin: 24px auto; padding: 0 20px; }

.dropzone {
  border: 2px dashed var(--border); border-radius: 12px; background: var(--card);
  padding: 32px; text-align: center; color: var(--muted); cursor: pointer;
  transition: border-color .15s, background .15s; margin-bottom: 20px;
}
.dropzone:hover, .dropzone.dragover { border-color: var(--primary); background: #eff6ff; color: var(--primary); }
.dropzone .icon { font-size: 28px; margin-bottom: 8px; }
.dropzone b { color: var(--primary); }
.dropzone input[type="file"] {
  display: inline-block; margin-top: 14px; font-size: 13px;
  color: var(--text); max-width: 90%;
}

.progress-wrap { display: none; margin-bottom: 20px; }
.progress-wrap .name { font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.progress { height: 8px; background: var(--border); border-radius: 99px; overflow: hidden; }
.progress > div { height: 100%; width: 0; background: var(--primary); transition: width .15s; }

.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  overflow: hidden;
}
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 12px 16px; text-align: left; }
thead th {
  font-size: 12px; color: var(--muted); font-weight: 600;
  background: #f9fafb; border-bottom: 1px solid var(--border);
}
tbody tr + tr td { border-top: 1px solid var(--border); }
td.name-cell { max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
td.muted { color: var(--muted); font-size: 13px; }
.empty { padding: 40px; text-align: center; color: var(--muted); }
.btn-danger {
  padding: 5px 12px; font-size: 12px; cursor: pointer; border-radius: 6px;
  background: transparent; color: var(--danger); border: 1px solid var(--border);
}
.btn-danger:hover { border-color: var(--danger); background: #fef2f2; }