:root {
  --bg: #0e1116; --panel: #171b23; --card: #1c212c; --line: #262c3a;
  --fg: #e6e9f0; --dim: #8b93a7; --accent: #4f8cff; --ok: #34d399;
  --warn: #fbbf24; --bad: #f87171;
}
* { box-sizing: border-box; margin: 0; }
body {
  background: var(--bg); color: var(--fg);
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
}
.hidden { display: none !important; }

/* ---- 登录 ---- */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: radial-gradient(1200px 600px at 20% -10%, #1b2333, var(--bg)); }
.login-card { width: 320px; padding: 36px 32px; background: var(--card); border: 1px solid var(--line); border-radius: 18px; text-align: center; }
.login-card .logo { font-size: 44px; }
.login-card h2 { margin: 8px 0 22px; font-weight: 600; }
.login-card input {
  width: 100%; padding: 11px 14px; border-radius: 10px; border: 1px solid var(--line);
  background: var(--panel); color: var(--fg); outline: none; font-size: 14px;
}
.login-card input:focus { border-color: var(--accent); }
.login-card button {
  width: 100%; margin-top: 14px; padding: 11px; border: none; border-radius: 10px;
  background: var(--accent); color: #fff; font-size: 15px; cursor: pointer; font-weight: 600;
}
.login-card button:hover { filter: brightness(1.1); }
.msg { min-height: 20px; margin-top: 12px; color: var(--bad); font-size: 13px; }

/* ---- 布局 ---- */
.app { display: flex; min-height: 100vh; }
.sidebar {
  width: 200px; flex-shrink: 0; background: var(--panel); border-right: 1px solid var(--line);
  display: flex; flex-direction: column; padding: 18px 12px; position: sticky; top: 0; height: 100vh;
}
.brand { font-size: 17px; font-weight: 700; padding: 4px 10px 18px; }
.sidebar nav { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.sidebar nav button, .logout {
  text-align: left; padding: 11px 14px; border: none; border-radius: 10px; background: none;
  color: var(--dim); font-size: 14px; cursor: pointer;
}
.sidebar nav button:hover { background: var(--card); color: var(--fg); }
.sidebar nav button.active { background: var(--accent); color: #fff; font-weight: 600; }
.logout { border-top: 1px solid var(--line); border-radius: 0; color: var(--dim); }
.logout:hover { color: var(--bad); }

main { flex: 1; padding: 22px 26px; max-width: 1100px; }
h1 { font-size: 19px; margin-bottom: 16px; font-weight: 600; }
h2 { font-size: 15px; margin: 18px 0 10px; color: var(--dim); font-weight: 600; }

/* ---- 卡片 ---- */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px; }
.card .k { color: var(--dim); font-size: 12px; margin-bottom: 6px; }
.card .v { font-size: 21px; font-weight: 700; }
.card .v small { font-size: 12px; color: var(--dim); font-weight: 400; margin-left: 4px; }
.bar { height: 8px; border-radius: 4px; background: var(--line); margin-top: 10px; overflow: hidden; }
.bar i { display: block; height: 100%; background: var(--accent); border-radius: 4px; transition: width .4s; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.chip {
  padding: 3px 10px; border-radius: 20px; background: var(--panel);
  border: 1px solid var(--line); font-size: 12px; color: var(--dim);
}
.chip b { color: var(--fg); font-weight: 600; }

/* ---- 表格 ---- */
table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
th, td { text-align: left; padding: 9px 12px; font-size: 13px; border-bottom: 1px solid var(--line); }
th { color: var(--dim); font-weight: 500; background: var(--panel); }
tr:last-child td { border-bottom: none; }
td .muted { color: var(--dim); }

.badge { padding: 2px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.badge.ok { background: rgba(52,211,153,.15); color: var(--ok); }
.badge.off { background: rgba(139,147,167,.15); color: var(--dim); }
.badge.bad { background: rgba(248,113,113,.15); color: var(--bad); }
.badge.warn { background: rgba(251,191,36,.15); color: var(--warn); }

button.act {
  padding: 5px 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--panel);
  color: var(--fg); font-size: 12px; cursor: pointer;
}
button.act:hover { border-color: var(--accent); color: var(--accent); }
button.act.danger:hover { border-color: var(--bad); color: var(--bad); }
.danger-zone { margin-top: 20px; padding: 14px 16px; border: 1px solid var(--line); border-radius: 12px; display: flex; gap: 10px; align-items: center; background: var(--card); }
.danger-zone span { color: var(--dim); flex: 1; }

/* ---- 应用 ---- */
.apps-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; }
.app-card { display: block; padding: 18px; background: var(--card); border: 1px solid var(--line); border-radius: 14px; text-decoration: none; color: var(--fg); }
.app-card:hover { border-color: var(--accent); }
.app-card .icon { font-size: 26px; }
.app-card .name { font-weight: 600; margin-top: 10px; }
.app-card .url { color: var(--dim); font-size: 12px; margin-top: 4px; word-break: break-all; }

.tree { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; font-family: ui-monospace, monospace; font-size: 13px; line-height: 1.7; white-space: pre-wrap; }

.offline { padding: 40px; text-align: center; color: var(--dim); }

@media (max-width: 760px) {
  .app { flex-direction: column; }
  .sidebar { width: 100%; height: auto; position: static; flex-direction: row; align-items: center; padding: 8px; gap: 2px; overflow-x: auto; }
  .brand { display: none; }
  .sidebar nav { flex-direction: row; flex: 1; }
  .sidebar nav button { white-space: nowrap; padding: 8px 10px; }
  .logout { border: none; white-space: nowrap; width: auto; }
  main { padding: 14px; }
}

/* ---- 文件 / 备份 ---- */
.crumb { margin-bottom: 12px; font-size: 14px; }
.crumb a, .lnk { color: var(--accent); cursor: pointer; text-decoration: none; }
.crumb a:hover, .lnk:hover { text-decoration: underline; }
.toolbar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
.path-line { margin-bottom: 10px; font-family: ui-monospace, monospace; font-size: 12px; }
td.ops { white-space: nowrap; }
td.ops .act { margin-right: 4px; text-decoration: none; display: inline-block; }
a.act { color: var(--fg); }
a.act:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
.form { display: flex; flex-direction: column; gap: 10px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px; }
.form label { display: flex; align-items: center; gap: 10px; font-size: 13px; }
.form label > input[type=text], .form label > input:not([type]) { flex: 1; }
.form input:not([type=checkbox]) { padding: 8px 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--panel); color: var(--fg); font-size: 13px; }
.form input:not([type=checkbox]):focus { border-color: var(--accent); outline: none; }
.form label.chk { color: var(--dim); }
.form .btns { display: flex; gap: 8px; }
.msg.bad { color: var(--bad); }
#fs-msg:not(.bad), #disk-msg:not(.bad), #bk-msg:not(.bad) { color: var(--ok); }

/* ---- 目录选择器 ---- */
.picker { position: fixed; inset: 0; background: rgba(0,0,0,.55); display: flex; align-items: center; justify-content: center; z-index: 50; padding: 16px; }
.pbox { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px; width: min(680px, 100%); max-height: 86vh; display: flex; flex-direction: column; gap: 10px; }
.pbox h3 { margin: 0; font-size: 15px; }
.plist { overflow: auto; flex: 1; border: 1px solid var(--line); border-radius: 10px; padding: 6px; min-height: 180px; }
.prow { padding: 7px 10px; border-radius: 8px; cursor: pointer; font-size: 13px; }
.prow:hover { background: var(--panel); color: var(--accent); }
.pbox .btns { display: flex; gap: 8px; }
button.pickbtn { max-width: 420px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; text-align: left; }

/* ---- 相册 / 影视 ---- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; margin: 12px 0; }
.tile { margin: 0; background: var(--card); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; cursor: pointer; }
.tile:hover { border-color: var(--accent); }
.tile img { width: 100%; height: 130px; object-fit: cover; display: block; background: var(--panel); }
.tile figcaption { padding: 6px 8px; font-size: 11px; line-height: 1.45; word-break: break-all; }
.noimg { height: 130px; display: flex; align-items: center; justify-content: center; font-size: 30px; color: var(--dim); background: var(--panel); }
.tile.vid .noimg { font-size: 42px; }

/* ---- 大图 / 播放器浮层 ---- */
.viewer { position: fixed; inset: 0; background: rgba(0,0,0,.92); z-index: 60; display: flex; flex-direction: column; }
.vbar { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 14px; color: #fff; font-size: 12px; flex-wrap: wrap; }
.vname { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 55vw; }
.viewer .act { background: rgba(255,255,255,.12); color: #fff; border-color: transparent; }
.viewer .act:hover { background: rgba(255,255,255,.25); color: #fff; }
.vimg, .vvideo { margin: auto; max-width: 96vw; max-height: calc(92vh - 60px); display: block; }
.tile figcaption b { font-size: 12px; font-weight: 600; display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sect { margin: 18px 0 6px; font-size: 14px; }
.toolbar.tabs { gap: 6px; padding: 0; background: none; border: none; }
.tab { padding: 5px 14px; border-radius: 20px; border: 1px solid var(--line); background: var(--card); color: var(--dim); font-size: 13px; cursor: pointer; }
.tab:hover { color: var(--fg); }
.tab.on { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.pbar { display: block; height: 3px; background: var(--line); border-radius: 2px; margin-top: 4px; overflow: hidden; }
.pbar i { display: block; height: 100%; background: var(--accent); }
.prow { display: flex; justify-content: space-between; gap: 10px; }
.prow span:first-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sortbar { display: inline-flex; gap: 2px; align-items: center; margin-left: auto; color: var(--dim); font-size: 13px; }
.sortbar .sm { padding: 2px 10px; font-size: 13px; }
.sortbar .sm.on { background: var(--accent); color: #fff; border-color: var(--accent); }
.grp { margin: 8px 0 4px; padding: 1px 0 1px 8px; border-left: 2px solid var(--accent); font-size: 13px; font-weight: 600; color: var(--dim); background: none; }