:root {
  --bg: #080b11;
  --bg-soft: #0d1219;
  --panel: rgba(255, 255, 255, 0.035);
  --panel-solid: #11161f;
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #e8eef6;
  --muted: #8a97a8;
  --dim: #5e6a7a;
  --accent: #4c8dff;
  --accent-2: #2ee6b6;
  --ok: #34d399;
  --warn: #fbbf24;
  --err: #f87171;
  --radius: 16px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f5f7fa;
    --bg-soft: #ffffff;
    --panel: rgba(15, 23, 42, 0.025);
    --panel-solid: #ffffff;
    --border: rgba(15, 23, 42, 0.09);
    --border-strong: rgba(15, 23, 42, 0.18);
    --text: #101827;
    --muted: #5b6879;
    --dim: #8b97a8;
    --accent: #2563eb;
  }
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  background:
    radial-gradient(900px 500px at 12% -8%, rgba(76, 141, 255, 0.16), transparent 62%),
    radial-gradient(760px 460px at 88% 4%, rgba(46, 230, 182, 0.12), transparent 60%),
    var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ---------- 顶栏 ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px clamp(16px, 4vw, 44px);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(16px);
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 72%, transparent);
}

.brand { display: flex; align-items: center; gap: 12px; }

.logo {
  width: 30px; height: 30px; border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 0 1px rgba(255,255,255,.12) inset, 0 8px 22px rgba(76,141,255,.35);
  position: relative;
}
.logo::after {
  content: ""; position: absolute; inset: 9px 8px;
  border-radius: 3px;
  background: repeating-linear-gradient(90deg, #fff 0 2px, transparent 2px 4px);
  opacity: .9;
}

.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 16px; letter-spacing: .2px; }
.brand-text small { color: var(--muted); font-size: 11.5px; }

.top-actions { display: flex; align-items: center; gap: 10px; }

.pill {
  font-size: 12px;
  padding: 5px 11px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
  background: var(--panel);
  white-space: nowrap;
}
.pill.ok { color: var(--ok); border-color: rgba(52, 211, 153, .35); background: rgba(52,211,153,.08); }
.pill.err { color: var(--err); border-color: rgba(248,113,113,.35); background: rgba(248,113,113,.08); }

/* ---------- 按钮 ---------- */
.btn {
  font: inherit;
  font-size: 13.5px;
  padding: 8px 16px;
  border-radius: 10px;
  border: 1px solid var(--border-strong);
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  transition: .18s ease;
  white-space: nowrap;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn:active { transform: translateY(1px); }
.btn.primary {
  background: linear-gradient(135deg, var(--accent), #3b6fe0);
  border-color: transparent;
  color: #fff;
  font-weight: 600;
  box-shadow: 0 6px 18px rgba(76,141,255,.28);
}
.btn.primary:hover { filter: brightness(1.08); color: #fff; }
.btn.ghost { background: transparent; }
.btn.small { padding: 5px 11px; font-size: 12.5px; border-radius: 8px; }
.btn.danger:hover { border-color: var(--err); color: var(--err); }
.btn:disabled { opacity: .45; cursor: not-allowed; }

.link {
  background: none; border: none; padding: 0;
  color: var(--accent); font: inherit; cursor: pointer;
  text-decoration: underline; text-underline-offset: 3px;
}

/* ---------- 布局 ---------- */
main {
  max-width: 1080px;
  margin: 0 auto;
  padding: clamp(24px, 4vw, 44px) clamp(16px, 4vw, 24px) 60px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero h1 {
  font-size: clamp(26px, 4.2vw, 38px);
  margin: 0 0 8px;
  letter-spacing: -.5px;
  background: linear-gradient(120deg, var(--text) 30%, var(--accent) 70%, var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p { margin: 0; color: var(--muted); max-width: 62ch; }

.hero-stats { display: flex; gap: 38px; margin-top: 24px; }
.hero-stats div { display: flex; flex-direction: column; }
.hero-stats b { font-size: 20px; font-variant-numeric: tabular-nums; }
.hero-stats span { font-size: 12px; color: var(--dim); letter-spacing: .5px; }

.panel-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 20px;
}
@media (max-width: 760px) {
  .panel-grid { grid-template-columns: 1fr; }
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  backdrop-filter: blur(10px);
}

.panel-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 14px; gap: 12px;
}
.panel-title {
  font-size: 13px; font-weight: 600; letter-spacing: .4px;
  color: var(--muted); text-transform: uppercase;
  display: flex; align-items: center; gap: 8px;
}
.count {
  font-family: var(--mono); font-size: 11px; padding: 1px 7px;
  border-radius: 999px; background: var(--panel); border: 1px solid var(--border);
  color: var(--text); text-transform: none;
}
.panel-actions { display: flex; gap: 8px; }

.hint { font-size: 12.5px; color: var(--dim); margin: 10px 0 0; }

/* ---------- 拖拽区 ---------- */
#dropzone {
  transition: .2s ease;
  display: flex; flex-direction: column;
}
#dropzone.drag {
  border-color: var(--accent);
  background: rgba(76, 141, 255, .09);
  box-shadow: 0 0 0 4px rgba(76, 141, 255, .1);
}
.drop-inner {
  flex: 1;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 6px; padding: 22px 10px 8px;
  color: var(--muted); text-align: center;
}
.drop-inner svg { color: var(--accent); margin-bottom: 4px; }
.drop-inner p { margin: 0; font-size: 14px; }
.drop-inner .hint { margin-top: 4px; }

/* ---------- 远程 ---------- */
.remote-form { display: flex; gap: 10px; }
.remote-form input {
  flex: 1; min-width: 0;
  font: inherit; font-size: 13.5px;
  padding: 9px 13px;
  border-radius: 10px;
  border: 1px solid var(--border-strong);
  background: var(--bg-soft);
  color: var(--text);
  outline: none;
  transition: .18s;
}
.remote-form input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(76,141,255,.14); }

.micro-note {
  margin-top: 16px; padding: 10px 12px;
  font-size: 12px; color: var(--dim);
  border-left: 2px solid var(--border-strong);
  background: rgba(255,255,255,.02);
  border-radius: 0 8px 8px 0;
}
code {
  font-family: var(--mono); font-size: 11.5px;
  background: rgba(255,255,255,.06); padding: 1.5px 5px; border-radius: 4px;
  color: var(--text);
}

/* ---------- 文件列表 ---------- */
.file-list { display: flex; flex-direction: column; gap: 10px; }

.empty {
  padding: 34px 12px; text-align: center;
  color: var(--dim); font-size: 13.5px;
  border: 1px dashed var(--border); border-radius: 12px;
}

.file-card {
  display: grid;
  grid-template-columns: 40px 1fr auto;
  gap: 14px; align-items: center;
  padding: 13px 15px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-soft);
  transition: .18s;
}
.file-card:hover { border-color: var(--border-strong); transform: translateY(-1px); }

.file-icon {
  width: 40px; height: 40px; border-radius: 10px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(76,141,255,.18), rgba(46,230,182,.14));
  color: var(--accent); font-size: 11px; font-weight: 700;
  font-family: var(--mono); letter-spacing: -.3px;
}

.file-main { min-width: 0; }
.file-name {
  font-size: 14px; font-weight: 500;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.file-meta {
  font-size: 12px; color: var(--dim);
  font-family: var(--mono);
  display: flex; gap: 10px; flex-wrap: wrap;
  margin-top: 2px;
}

.file-actions { display: flex; gap: 6px; }

/* ---------- 任务 ---------- */
.task-list { display: flex; flex-direction: column; gap: 12px; }

.task {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 13px 15px;
  background: var(--bg-soft);
}
.task-head {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 12px; margin-bottom: 9px;
}
.task-title { font-size: 13.5px; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.task-sub { font-size: 11.5px; color: var(--dim); font-family: var(--mono); white-space: nowrap; }

.bar {
  height: 6px; border-radius: 999px;
  background: rgba(255,255,255,.07);
  overflow: hidden;
}
.bar > i {
  display: block; height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 999px;
  transition: width .22s ease;
}
.task.done .bar > i { background: var(--ok); }
.task.error .bar > i { background: var(--err); }

.task-foot {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 7px; font-size: 11.5px; color: var(--dim);
  font-family: var(--mono);
}

/* ---------- 弹窗 ---------- */
.modal { position: fixed; inset: 0; z-index: 60; display: grid; place-items: center; padding: 20px; }
.modal[hidden] { display: none; }
.modal-mask { position: absolute; inset: 0; background: rgba(0,0,0,.6); backdrop-filter: blur(4px); }
.modal-card {
  position: relative;
  width: min(460px, 100%);
  background: var(--panel-solid);
  border: 1px solid var(--border-strong);
  border-radius: 18px;
  padding: 24px;
  display: flex; flex-direction: column; gap: 14px;
  box-shadow: 0 30px 80px rgba(0,0,0,.5);
  animation: pop .18s ease;
}
@keyframes pop { from { transform: scale(.97); opacity: 0; } }
.modal-card h2 { margin: 0 0 4px; font-size: 17px; }
.modal-card label { display: flex; flex-direction: column; gap: 6px; font-size: 12.5px; color: var(--muted); }
.modal-card input {
  font: inherit; font-size: 13.5px;
  padding: 9px 12px; border-radius: 10px;
  border: 1px solid var(--border-strong);
  background: var(--bg);
  color: var(--text); outline: none;
}
.modal-card input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(76,141,255,.14); }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 6px; }

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  left: 50%; bottom: 28px; transform: translateX(-50%);
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--panel-solid);
  border: 1px solid var(--border-strong);
  font-size: 13px;
  box-shadow: 0 16px 40px rgba(0,0,0,.4);
  z-index: 80;
  animation: rise .2s ease;
  max-width: 88vw;
}
.toast[hidden] { display: none; }
.toast.err { border-color: rgba(248,113,113,.5); color: var(--err); }
.toast.ok { border-color: rgba(52,211,153,.5); color: var(--ok); }
@keyframes rise { from { transform: translate(-50%, 8px); opacity: 0; } }

/* ---------- 页脚 ---------- */
.foot {
  text-align: center;
  padding: 26px 16px 40px;
  color: var(--dim);
  font-size: 12px;
  border-top: 1px solid var(--border);
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 999px; }
::-webkit-scrollbar-track { background: transparent; }

/* ---------- 锁屏 ---------- */
body.is-locked main,
body.is-locked .foot { display: none; }

.lock {
  position: fixed;
  inset: 0;
  z-index: 70;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(700px 420px at 50% 8%, rgba(76, 141, 255, 0.16), transparent 65%),
    color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
}
.lock[hidden] { display: none; }

.lock-card {
  width: min(400px, 100%);
  background: var(--panel-solid);
  border: 1px solid var(--border-strong);
  border-radius: 22px;
  padding: 34px 30px 26px;
  text-align: center;
  box-shadow: 0 34px 90px rgba(0, 0, 0, .55);
  animation: pop .22s ease;
}
.lock-card.shake { animation: shake .32s cubic-bezier(.36, .07, .19, .97); }
@keyframes shake {
  10%, 90% { transform: translateX(-2px); }
  20%, 80% { transform: translateX(4px); }
  30%, 50%, 70% { transform: translateX(-7px); }
  40%, 60% { transform: translateX(7px); }
}

.lock-badge {
  width: 52px; height: 52px;
  margin: 0 auto 16px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  color: var(--accent);
  background: linear-gradient(135deg, rgba(76, 141, 255, .18), rgba(46, 230, 182, .14));
  border: 1px solid var(--border-strong);
}
.lock-badge svg { width: 26px; height: 26px; }

.lock-card h2 { margin: 0 0 6px; font-size: 19px; letter-spacing: .02em; }
.lock-sub { margin: 0 0 22px; color: var(--muted); font-size: 13px; line-height: 1.6; }

.lock-card form { display: flex; flex-direction: column; gap: 12px; }

.lock-input {
  width: 100%;
  padding: 13px 16px;
  font: inherit;
  font-size: 22px;
  letter-spacing: .38em;
  text-indent: .38em;
  text-align: center;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: 13px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.lock-input::placeholder { letter-spacing: .2em; color: var(--dim); }
.lock-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(76, 141, 255, .16);
}

.lock-submit { width: 100%; padding: 12px; font-size: 14px; }
.lock-submit[disabled] { opacity: .65; cursor: progress; }

.lock-err {
  margin: 12px 0 0;
  font-size: 12.5px;
  color: var(--err);
}
.lock-err[hidden] { display: none; }

.lock-remember {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 18px;
  font-size: 12.5px;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
}
.lock-remember input { accent-color: var(--accent); width: 14px; height: 14px; }

/* ---------- 移动端适配 ---------- */
@media (max-width: 640px) {
  body { font-size: 14.5px; -webkit-text-size-adjust: 100%; }

  .topbar {
    padding: calc(10px + env(safe-area-inset-top, 0px)) 14px 10px;
    gap: 8px;
  }
  .brand { gap: 9px; min-width: 0; }
  .brand-text strong { font-size: 15px; }
  .brand-text small { display: none; }
  .logo { width: 26px; height: 26px; border-radius: 8px; }
  .logo::after { inset: 8px 7px; }

  .top-actions { gap: 6px; flex-shrink: 0; }
  .pill { font-size: 11px; padding: 4px 8px; max-width: 34vw; overflow: hidden; text-overflow: ellipsis; }
  .btn { padding: 8px 12px; min-height: 40px; font-size: 13px; }
  .btn.small { padding: 8px 12px; font-size: 12.5px; }

  main {
    padding: 18px 14px calc(34px + env(safe-area-inset-bottom, 0px));
    gap: 14px;
  }
  .hero h1 { font-size: 24px; letter-spacing: -.3px; }
  .hero p { font-size: 13.5px; line-height: 1.65; }
  .hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-top: 18px;
  }
  .hero-stats b { font-size: 18px; }
  .hero-stats span { font-size: 11px; letter-spacing: .3px; }

  .panel { padding: 15px; border-radius: 14px; }
  .panel-head { gap: 8px; margin-bottom: 12px; }
  .panel-title { font-size: 12px; }

  /* 卡片：图标 + 信息一行，操作按钮整行铺开，避免横向挤压 */
  .file-card {
    grid-template-columns: 38px 1fr;
    grid-template-areas:
      "icon main"
      "actions actions";
    gap: 10px 12px;
    padding: 12px 13px;
  }
  .file-icon { grid-area: icon; width: 38px; height: 38px; border-radius: 9px; font-size: 10.5px; }
  .file-main { grid-area: main; }
  .file-name { font-size: 13.5px; }
  .file-meta { gap: 8px; font-size: 11.5px; }
  .file-actions { grid-area: actions; gap: 8px; }
  .file-actions .btn { flex: 1 1 0; min-height: 40px; padding: 8px 4px; }

  .howto pre, .howto code { max-width: 100%; }
  .howto pre {
    overflow-x: auto;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    padding: 10px 12px;
    border-radius: 8px;
    background: rgba(255,255,255,.04);
  }
  .howto ol { padding-left: 18px; }

  .task-head { flex-wrap: wrap; gap: 4px; }
  .task-sub { white-space: normal; }

  /* 设置弹窗改成底部抽屉 */
  .modal { padding: 0; align-items: end; }
  .modal-card {
    width: 100%;
    max-height: 88vh;
    overflow-y: auto;
    border-radius: 18px 18px 0 0;
    padding: 20px 18px calc(18px + env(safe-area-inset-bottom, 0px));
    animation: sheet .22s ease;
  }
  .modal-card h2 { font-size: 16px; }
  .modal-card input { font-size: 16px; padding: 11px 12px; }
  .modal-actions .btn { flex: 1; }

  /* 锁屏 */
  .lock { padding: 18px; }
  .lock-card {
    width: 100%;
    padding: 26px 20px calc(20px + env(safe-area-inset-bottom, 0px));
    border-radius: 18px;
  }
  .lock-badge { width: 46px; height: 46px; margin-bottom: 14px; }
  .lock-card h2 { font-size: 17px; }
  .lock-sub { font-size: 12.5px; margin-bottom: 18px; }
  .lock-input { font-size: 20px; padding: 12px 14px; letter-spacing: .3em; text-indent: .3em; }
  .lock-submit { min-height: 46px; }
  .lock-remember { margin-top: 14px; font-size: 12px; }

  .toast {
    bottom: calc(18px + env(safe-area-inset-bottom, 0px));
    max-width: 92vw;
    padding: 9px 15px;
    font-size: 12.5px;
  }
  /* 底部抽屉打开时，提示改到顶部，避免压住按钮 */
  .modal:not([hidden]) ~ .toast {
    top: calc(58px + env(safe-area-inset-top, 0px));
    bottom: auto;
  }

  .foot { padding: 20px 14px calc(26px + env(safe-area-inset-bottom, 0px)); font-size: 11.5px; }
}

@keyframes sheet { from { transform: translateY(12px); opacity: 0; } }

@media (max-width: 360px) {
  .brand-text strong { font-size: 14px; }
  .pill { display: none; }
  .file-meta span:nth-child(3) { display: none; }
}