/* ===========================================================
   工具箱 · 浅色科技风主题
   =========================================================== */
:root {
  --bg: #f4f6fb;
  --panel: #ffffff;
  --panel-soft: #fafbff;
  --border: #e4e9f2;
  --border-strong: #d5dceb;
  --text: #141b2d;
  --text-2: #48546b;
  --muted: #7f8a9c;
  --accent: #2563eb;
  --accent-2: #06b6d4;
  --accent-soft: #eef4ff;
  --accent-line: #c7dbff;
  --ok: #059669;
  --warn: #d97706;
  --danger: #dc2626;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow-sm: 0 1px 2px rgba(20, 27, 45, 0.05);
  --shadow-md: 0 1px 2px rgba(20, 27, 45, 0.04), 0 10px 28px -16px rgba(20, 27, 45, 0.22);
  --mono: ui-monospace, "JetBrains Mono", "Cascadia Mono", Consolas, "Courier New", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
}

body {
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(1200px 500px at 12% -10%, rgba(6, 182, 212, 0.10), transparent 65%),
    radial-gradient(900px 420px at 92% 0%, rgba(37, 99, 235, 0.10), transparent 60%),
    linear-gradient(rgba(37, 99, 235, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 99, 235, 0.045) 1px, transparent 1px);
  background-size: auto, auto, 28px 28px, 28px 28px;
  -webkit-font-smoothing: antialiased;
}

.app { display: flex; flex-direction: column; min-height: 100vh; }

/* ------------------------------ 顶栏 ------------------------------ */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 22px;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
}

.brand { display: flex; align-items: center; gap: 11px; }
.brand-logo { display: grid; place-items: center; }
.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-text strong { font-size: 15.5px; letter-spacing: 0.02em; }
.brand-text em {
  font-style: normal;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.topbar-actions { display: flex; align-items: center; gap: 10px; }
.status-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--warn);
  box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.14);
}
.status-dot.online { background: var(--ok); box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.16); }
.status-dot.offline { background: var(--danger); box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.14); }
.status-text { font-size: 12px; color: var(--muted); }

/* ------------------------------ 布局 ------------------------------ */
.layout {
  flex: 1;
  display: grid;
  grid-template-columns: 262px minmax(0, 1fr);
  gap: 20px;
  padding: 20px 22px 34px;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  align-items: start;
}

/* ------------------------------ 侧栏 ------------------------------ */
.sidebar {
  min-width: 0;
  position: sticky;
  top: 76px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: calc(100vh - 100px);
}

.tool-picker { display: none; }
.tool-picker-body { display: flex; flex-direction: column; gap: 10px; min-height: 0; min-width: 0; }

.search {
  width: 100%;
  padding: 9px 12px;
  font: inherit;
  font-size: 13px;
  color: var(--text);
  background: var(--panel-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.search:focus { border-color: var(--accent-line); box-shadow: 0 0 0 3px var(--accent-soft); }

.tool-nav { display: flex; flex-direction: column; gap: 4px; overflow-y: auto; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 11px;
  font: inherit;
  font-size: 13.5px;
  color: var(--text-2);
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.14s, color 0.14s, border-color 0.14s;
}
.nav-item:hover { background: var(--panel-soft); color: var(--text); }
.nav-item.active {
  background: var(--accent-soft);
  border-color: var(--accent-line);
  color: var(--accent);
  font-weight: 600;
}
.nav-item .nav-icon {
  flex: none;
  width: 24px; height: 24px;
  display: grid; place-items: center;
  font-size: 13px;
  border-radius: 7px;
  background: var(--panel-soft);
  border: 1px solid var(--border);
}
.nav-item.active .nav-icon { background: #fff; border-color: var(--accent-line); }
.nav-item .nav-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.sidebar-foot {
  border-top: 1px dashed var(--border);
  padding-top: 9px;
  font-size: 11.5px;
  color: var(--muted);
  letter-spacing: 0.02em;
}

/* ------------------------------ 内容区 ------------------------------ */
.content { min-width: 0; display: flex; flex-direction: column; gap: 16px; }

.placeholder {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
  color: var(--muted);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.panel-head {
  padding: 20px 22px 16px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, #fdfdff 0%, #ffffff 100%);
}
.panel-title-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.panel-title { margin: 0; font-size: 18px; font-weight: 650; letter-spacing: 0.01em; }
.panel-desc { margin: 6px 0 0; color: var(--text-2); font-size: 13px; }
.tag {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
}

.panel-body { padding: 20px 22px 22px; display: flex; flex-direction: column; gap: 18px; }

/* ------------------------------ 表单 ------------------------------ */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(196px, 1fr));
  gap: 14px 16px;
}
.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field[hidden] { display: none; }
.field > label { font-size: 12.5px; font-weight: 600; color: var(--text-2); letter-spacing: 0.01em; }

.input, .select {
  width: 100%;
  padding: 9px 11px;
  font: inherit;
  font-size: 13.5px;
  color: var(--text);
  background: var(--panel-soft);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}
.input:hover, .select:hover { border-color: var(--accent-line); }
.input:focus, .select:focus {
  background: #fff;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
textarea.input {
  min-height: 88px;
  resize: vertical;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.6;
}
/* 文本域独占整行 */
.field-wide { grid-column: 1 / -1; }

.select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: calc(100% - 16px) 51%, calc(100% - 11px) 51%; background-size: 5px 5px, 5px 5px; background-repeat: no-repeat; padding-right: 32px; }
.input-suffix { display: flex; align-items: center; gap: 8px; }
.input-suffix span { font-size: 12.5px; color: var(--muted); white-space: nowrap; }
.hint { font-size: 11.5px; color: var(--muted); line-height: 1.5; }

/* 开关 */
.switch { display: flex; align-items: center; gap: 10px; cursor: pointer; user-select: none; padding: 3px 0; }
.switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.switch .track {
  flex: none;
  width: 38px; height: 21px;
  border-radius: 999px;
  background: #dbe2ee;
  border: 1px solid var(--border-strong);
  position: relative;
  transition: background 0.18s, border-color 0.18s;
}
.switch .track::after {
  content: "";
  position: absolute;
  top: 2px; left: 2px;
  width: 15px; height: 15px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgba(20, 27, 45, 0.28);
  transition: transform 0.18s;
}
.switch input:checked + .track { background: linear-gradient(135deg, var(--accent), var(--accent-2)); border-color: transparent; }
.switch input:checked + .track::after { transform: translateX(17px); }
.switch input:focus-visible + .track { box-shadow: 0 0 0 3px var(--accent-soft); }
.switch .switch-label { font-size: 13px; color: var(--text-2); }

/* 密钥类字段：默认遮蔽 + 小眼睛 */
.input-secret { position: relative; display: flex; align-items: center; }
.input-secret .input {
  padding-right: 42px;
  font-family: var(--mono);
  letter-spacing: 0.03em;
}
.input-secret .eye {
  position: absolute;
  right: 5px;
  width: 31px; height: 31px;
  display: grid;
  place-items: center;
  padding: 0;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-radius: 7px;
  cursor: pointer;
  transition: color 0.14s, background 0.14s;
}
.input-secret .eye:hover { color: var(--accent); background: var(--accent-soft); }
.input-secret .eye.on { color: var(--accent); }
.input-secret .eye svg { display: block; }

/* ------------------------- 双栏互转面板（cipher-pair） ------------------------- */
.form-grid.secret-row { grid-template-columns: minmax(220px, 520px); }

.cipher-grid { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); gap: 16px; }
.cipher-controls { display: flex; flex-direction: column; justify-content: center; gap: 12px; }

.cipher-pane {
  display: flex;
  flex-direction: column;
  background: var(--panel-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.18s, background 0.18s, box-shadow 0.18s;
}
.cipher-pane:hover { border-color: var(--border-strong); }
.cipher-pane:focus-within {
  border-color: var(--accent-line);
  background: #fff;
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.cipher-pane.flash { animation: paneFlash 1s ease-out; }
@keyframes paneFlash {
  0% { border-color: var(--accent); box-shadow: 0 0 0 5px rgba(37, 99, 235, 0.16); }
  100% { border-color: var(--border); box-shadow: 0 0 0 0 rgba(37, 99, 235, 0); }
}

.pane-head {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.pane-title {
  font-size: 12.5px;
  font-weight: 650;
  color: var(--text-2);
  letter-spacing: 0.03em;
  white-space: nowrap;
}
.pane-badge {
  padding: 1px 8px;
  font-size: 10.5px;
  font-weight: 600;
  color: var(--ok);
  background: #d1fae5;
  border-radius: 999px;
  white-space: nowrap;
}
.pane-badge.warn { color: var(--muted); background: #eef1f6; }
.pane-tools {
  display: flex;
  gap: 6px;
  margin-left: auto;
  opacity: 0;
  transition: opacity 0.15s;
}
.cipher-pane:hover .pane-tools,
.cipher-pane:focus-within .pane-tools { opacity: 1; }
@media (hover: none) { .pane-tools { opacity: 1; } }

.cipher-textarea {
  flex: 1;
  width: 100%;
  min-height: 200px;
  padding: 13px 14px;
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text);
  background: transparent;
  border: 0;
  outline: none;
  resize: vertical;
  word-break: break-all;
}
.cipher-textarea::placeholder { color: #a9b3c5; font-family: var(--sans); font-size: 13px; }

.pane-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.72);
  border-top: 1px dashed var(--border);
}
.cipher-action { box-shadow: 0 6px 18px -10px rgba(37, 99, 235, 0.85); }
.cipher-action .arrow { font-size: 15px; line-height: 1; }

kbd {
  padding: 1px 5px;
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--text-2);
  background: #fff;
  border: 1px solid var(--border-strong);
  border-bottom-width: 2px;
  border-radius: 5px;
}

.cipher-meta { display: flex; flex-direction: column; gap: 10px; }
.cipher-meta:empty { display: none; }

/* 高级选项折叠区 */
.advanced { padding-top: 13px; border-top: 1px dashed var(--border); }
.advanced summary {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
}
.advanced summary::-webkit-details-marker { display: none; }
.advanced summary::before { content: "▸"; color: var(--muted); transition: transform 0.15s; }
.advanced[open] summary::before { transform: rotate(90deg); }
.advanced summary:hover { color: var(--accent); }
.advanced .adv-hint {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 500;
  color: var(--muted);
}
.adv-grid { margin-top: 14px; }

/* ------------------------- 图片压缩面板（image-compress） ------------------------- */
.imgc-drop {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  padding: 38px 20px;
  font: inherit;
  color: var(--text-2);
  background:
    repeating-linear-gradient(45deg, rgba(37, 99, 235, 0.03) 0 12px, transparent 12px 24px),
    var(--panel-soft);
  border: 1.5px dashed var(--border-strong);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}
.imgc-drop:hover,
.imgc-drop.over {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}
.imgc-drop-icon { font-size: 30px; line-height: 1; }
.imgc-drop-title { font-size: 14px; font-weight: 600; }
.imgc-drop-hint { font-size: 12px; color: var(--muted); }

.imgc-workspace { display: flex; flex-direction: column; gap: 18px; }
.imgc-workspace[hidden] { display: none; }

.imgc-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.imgc-card {
  margin: 0;
  display: flex;
  flex-direction: column;
  background: var(--panel-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.imgc-card-head {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  font-size: 12.5px;
  font-weight: 650;
  color: var(--text-2);
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.imgc-card-tools { margin-left: auto; opacity: 0; transition: opacity 0.15s; }
.imgc-card:hover .imgc-card-tools,
.imgc-card:focus-within .imgc-card-tools { opacity: 1; }
@media (hover: none) { .imgc-card-tools { opacity: 1; } }

.imgc-badge {
  padding: 1px 8px;
  font-size: 10.5px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
  white-space: nowrap;
}
.imgc-stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 200px;
  max-height: 360px;
  padding: 12px;
  background-image:
    linear-gradient(45deg, #eef1f6 25%, transparent 25%),
    linear-gradient(-45deg, #eef1f6 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #eef1f6 75%),
    linear-gradient(-45deg, transparent 75%, #eef1f6 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
  overflow: hidden;
}
.imgc-img {
  max-width: 100%;
  max-height: 336px;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 4px 14px -8px rgba(20, 27, 45, 0.4);
}
.imgc-img:not([src]) { visibility: hidden; }
.imgc-spinner {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(2px);
}
.imgc-spinner[hidden] { display: none; }

.imgc-card-foot {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding: 9px 12px;
  font-size: 12px;
  color: var(--muted);
  border-top: 1px solid var(--border);
  background: #fff;
}
.imgc-card-foot .imgc-name {
  max-width: 46%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.imgc-card-foot .imgc-size { color: var(--text); font-weight: 650; font-variant-numeric: tabular-nums; }
.imgc-card-foot .imgc-saved { color: var(--ok); font-weight: 650; }
.imgc-card-foot .imgc-grew { color: var(--danger); font-weight: 650; }
.imgc-card-foot .dot { color: var(--border-strong); }

.imgc-settings {
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel-soft);
}
.imgc-settings-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
}
.imgc-settings-head > span { font-size: 13px; font-weight: 650; color: var(--text-2); }

.imgc-range-wrap { display: flex; align-items: center; gap: 12px; }
.imgc-range { flex: 1; min-width: 0; accent-color: var(--accent); }
.imgc-range:disabled { opacity: 0.5; }
.imgc-range-val {
  min-width: 44px;
  text-align: right;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--text);
}

.imgc-seg {
  display: inline-flex;
  padding: 3px;
  background: #fff;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
}
.imgc-seg-btn {
  padding: 5px 14px;
  font: inherit;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.15s, background 0.15s;
}
.imgc-seg-btn.active { color: #fff; background: linear-gradient(135deg, var(--accent), var(--accent-2)); }

.imgc-presets { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 2px; }
.imgc-preset {
  padding: 3px 10px;
  font: inherit;
  font-size: 11.5px;
  color: var(--text-2);
  background: #fff;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.imgc-preset:hover { color: var(--accent); border-color: var(--accent-line); }
.imgc-preset.active {
  color: var(--accent);
  background: var(--accent-soft);
  border-color: var(--accent-line);
  font-weight: 600;
}

.imgc-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.imgc-actions .spacer { flex: 1; }
.imgc-meta { display: flex; flex-direction: column; gap: 10px; }
.imgc-meta:empty { display: none; }

.imgc-img { cursor: zoom-in; }

/* ------------------------- 图片放大预览（Lightbox） ------------------------- */
body.zoom-open { overflow: hidden; }

.zoom-overlay {
  position: fixed;
  inset: 0;
  z-index: 70;
  display: flex;
  flex-direction: column;
  background: rgba(11, 17, 28, 0.88);
  backdrop-filter: blur(4px);
}

.zoom-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  color: #e5ecf7;
  background: rgba(15, 23, 42, 0.78);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.zoom-title {
  max-width: 42vw;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 13px;
  font-weight: 600;
}
.zoom-spacer { flex: 1; }
.zoom-percent {
  min-width: 52px;
  text-align: center;
  font-family: var(--mono);
  font-size: 12.5px;
  color: #cbd5e1;
  font-variant-numeric: tabular-nums;
}
.zoom-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 30px;
  padding: 0 11px;
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  color: #e5ecf7;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.zoom-btn:hover { background: rgba(255, 255, 255, 0.22); border-color: rgba(255, 255, 255, 0.32); }
.zoom-btn:active { transform: translateY(1px); }

.zoom-stage {
  position: relative;
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  cursor: grab;
  touch-action: none;
}
.zoom-stage.dragging { cursor: grabbing; }

.zoom-img {
  display: block;
  flex: none;
  max-width: none;
  max-height: none;
  user-select: none;
  -webkit-user-drag: none;
  box-shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.7);
  will-change: width, height, transform;
}
.zoom-img:not([data-ready]) { opacity: 0; }

@media (max-width: 640px) {
  .zoom-bar { gap: 6px; padding: 8px 10px; }
  .zoom-title { display: none; }
  .zoom-btn { padding: 0 9px; min-width: 30px; }
}

/* ------------------------------ 按钮 ------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 9px 16px;
  font: inherit;
  font-size: 13.5px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: #fff;
  color: var(--text-2);
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.15s, background 0.15s, border-color 0.15s, color 0.15s;
  white-space: nowrap;
}
.btn:hover { border-color: var(--accent-line); color: var(--accent); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #3b82f6 65%, var(--accent-2));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 6px 18px -8px rgba(37, 99, 235, 0.75);
}
.btn-primary:hover { color: #fff; filter: brightness(1.05); }
.btn-ghost { background: transparent; border-color: var(--border); }
.btn-ghost:hover { background: var(--accent-soft); }
.btn-icon { padding: 6px 10px; font-size: 13px; }
.btn-sm { padding: 5px 10px; font-size: 12px; font-weight: 500; }

.form-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.form-actions .spacer { flex: 1; }

/* ------------------------------ 结果区 ------------------------------ */
.result-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.result-head h3 { margin: 0; font-size: 14px; font-weight: 650; }
.result-head .muted { font-size: 12px; color: var(--muted); }
.result-actions { display: flex; gap: 8px; }

.result-list { display: flex; flex-direction: column; gap: 8px; }

.result-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background: var(--panel-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color 0.15s, background 0.15s;
}
.result-item:hover { border-color: var(--accent-line); background: #fff; }
.result-item .idx {
  flex: none;
  min-width: 26px;
  font-size: 11px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.result-item .value {
  flex: 1;
  min-width: 0;
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.045em;
  color: var(--text);
  word-break: break-all;
}
.result-item .value.multiline {
  font-family: var(--sans);
  font-size: 13.5px;
  letter-spacing: 0;
  line-height: 1.65;
  white-space: pre-wrap;
  word-break: break-word;
}
.result-item:has(.value.multiline) { align-items: flex-start; }
.result-item:has(.value.multiline) .idx { padding-top: 1px; }

.result-item .copy { opacity: 0; transition: opacity 0.15s; }
.result-item:hover .copy, .result-item:focus-within .copy { opacity: 1; }
@media (hover: none) { .result-item .copy { opacity: 1; } }

.meta-row { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 11px;
  font-size: 12px;
  color: var(--text-2);
  background: var(--panel-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
}
.chip b { font-weight: 650; color: var(--text); }

.badge { padding: 1px 8px; border-radius: 999px; font-size: 11px; font-weight: 600; }
.badge.weak { color: var(--danger); background: #fee2e2; }
.badge.fair { color: var(--warn); background: #fef3c7; }
.badge.good { color: var(--accent); background: var(--accent-soft); }
.badge.strong { color: var(--ok); background: #d1fae5; }

.note {
  display: flex;
  gap: 9px;
  padding: 10px 13px;
  font-size: 12.5px;
  color: var(--text-2);
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  border-radius: var(--radius-sm);
}
.note::before { content: "ⓘ"; color: var(--accent); font-weight: 700; }

.error-box {
  padding: 11px 14px;
  font-size: 13px;
  color: #b91c1c;
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: var(--radius-sm);
}

/* 历史 */
.history { border-top: 1px dashed var(--border); padding-top: 14px; }
.history summary {
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.history summary::-webkit-details-marker { display: none; }
.history summary::before { content: "▸"; color: var(--muted); transition: transform 0.15s; }
.history[open] summary::before { transform: rotate(90deg); }
.history .clear { margin-left: auto; font-weight: 500; font-size: 12px; color: var(--muted); }
.history .clear:hover { color: var(--danger); }

/* 「仅存本机」标识与隐私说明 */
.local-badge {
  padding: 1px 8px;
  font-size: 10.5px;
  font-weight: 600;
  color: var(--ok);
  background: #d1fae5;
  border-radius: 999px;
  white-space: nowrap;
}
.local-badge.off { color: var(--warn); background: #fef3c7; }

.history-note {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 10px;
  padding: 8px 12px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-2);
  background: var(--panel-soft);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.history-note b { color: var(--text); font-weight: 650; }

.switch-mini { padding: 0; gap: 7px; }
.switch-mini .track { width: 32px; height: 18px; }
.switch-mini .track::after { width: 12px; height: 12px; }
.switch-mini input:checked + .track::after { transform: translateX(16px); }
.switch-mini .switch-label { font-size: 12px; white-space: nowrap; }
.history-list { margin-top: 10px; display: flex; flex-direction: column; gap: 6px; max-height: 260px; overflow-y: auto; }
.history-item {
  display: flex; align-items: center; gap: 10px;
  padding: 7px 10px;
  font-size: 12.5px;
  background: var(--panel-soft);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.history-item .value { flex: 1; min-width: 0; font-family: var(--mono); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.history-item time { color: var(--muted); font-size: 11px; flex: none; }

/* ------------------------------ 弹窗 & Toast ------------------------------ */
.modal { position: fixed; inset: 0; z-index: 60; display: grid; place-items: center; padding: 20px; }
.modal[hidden] { display: none; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(18, 26, 43, 0.42); backdrop-filter: blur(3px); }
.modal-card {
  position: relative;
  width: min(660px, 100%);
  max-height: 84vh;
  overflow: auto;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 24px 60px -20px rgba(20, 27, 45, 0.45);
}
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--border); }
.modal-head h3 { margin: 0; font-size: 15px; }
.modal-body { padding: 18px 20px 22px; display: flex; flex-direction: column; gap: 14px; }
.modal-body h4 { margin: 0; font-size: 13px; color: var(--text-2); }
.modal-body p { margin: 0; font-size: 13px; color: var(--text-2); }

pre.code {
  margin: 0;
  padding: 12px 14px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.65;
  color: #0f172a;
  background: #f6f8fc;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow-x: auto;
  white-space: pre;
}

.toast-wrap { position: fixed; right: 20px; bottom: 20px; display: flex; flex-direction: column; gap: 8px; z-index: 80; }
.toast {
  padding: 10px 15px;
  font-size: 13px;
  color: #fff;
  background: #1f2937;
  border-radius: 10px;
  box-shadow: 0 12px 28px -12px rgba(20, 27, 45, 0.6);
  opacity: 0;
  transform: translateY(8px);
  animation: toastIn 0.2s forwards;
}
.toast.ok { background: linear-gradient(135deg, #059669, #10b981); }
.toast.err { background: linear-gradient(135deg, #dc2626, #ef4444); }
.toast.out { animation: toastOut 0.2s forwards; }
@keyframes toastIn { to { opacity: 1; transform: translateY(0); } }
@keyframes toastOut { to { opacity: 0; transform: translateY(6px); } }

/* ------------------------------ 响应式 ------------------------------ */
@media (max-width: 980px) {
  .cipher-grid { grid-template-columns: 1fr; }
  .cipher-controls { flex-direction: row; }
  .cipher-controls .arrow { display: inline-block; transform: rotate(90deg); }
  .imgc-cards { grid-template-columns: 1fr; }
  .form-grid.secret-row { grid-template-columns: 1fr; }
  .cipher-textarea { min-height: 140px; }
}

@media (max-width: 860px) {
  .layout { grid-template-columns: minmax(0, 1fr); padding: 14px; }
  .sidebar { position: static; max-height: none; }
  .tool-picker { display: flex; align-items: center; justify-content: space-between; gap: 12px; width: 100%; min-height: 44px; padding: 4px; border: 0; background: transparent; color: var(--text); font: inherit; text-align: left; cursor: pointer; }
  .tool-picker-current { min-width: 0; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .tool-picker-action { flex: none; color: var(--accent); font-size: 13px; }
  .tool-picker-arrow { display: inline-block; transition: transform .15s; }
  .picker-open .tool-picker-arrow { transform: rotate(180deg); }
  .tool-picker-body { display: none; }
  .picker-open .tool-picker-body { display: flex; padding-top: 8px; border-top: 1px solid var(--border); }
  .tool-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); max-height: 300px; max-height: min(300px, 45dvh); overflow-y: auto; }
  .nav-item { min-width: 0; min-height: 44px; padding: 9px 8px; gap: 7px; }
  .topbar { padding: 10px 14px; }
  .panel-body { padding: 16px; }
}

/* ===========================================================
   duzm.top 扩展：工具箱新增面板样式
   （JSON 编辑器 / 番茄钟 / 文件转 Base64）
   =========================================================== */

/* ------------------------- 文本对比 ------------------------- */
.diff-result { max-height: 620px; overflow: auto; border-radius: var(--radius-sm); }
.diff-heading, .diff-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.diff-heading { position: sticky; top: 0; background: var(--panel); padding: 10px; border-bottom: 1px solid var(--border); z-index: 1; }
.diff-cell { display: flex; min-width: 0; padding: 4px 8px; border-bottom: 1px solid var(--border); font: 13px/1.7 var(--mono); }
.diff-left { border-right: 1px solid var(--border); }
.diff-line { flex: none; min-width: 42px; padding-right: 10px; text-align: right; color: var(--muted); user-select: none; }
.diff-text { white-space: pre-wrap; overflow-wrap: anywhere; min-width: 0; }
.diff-delete .diff-left, .diff-replace .diff-left { background: #fef2f2; }
.diff-insert .diff-right, .diff-replace .diff-right { background: #f0fdf4; }
.diff-empty { background: #f1f5f9; }
.diff-active { outline: 2px solid var(--accent); outline-offset: -2px; }

/* ------------------------- JSON 编辑器（json-editor） ------------------------- */
.json-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.json-toolbar .select { width: auto; }
.json-tree { min-height: 320px; max-height: 560px; overflow: auto; padding: 13px 14px; font-family: var(--mono); font-size: 13px; }
.json-tree:empty::before { content: "结果将显示在这里"; color: #a9b3c5; font-family: var(--sans); }
.json-tree-controls { display: flex; gap: 8px; padding: 8px 12px; border-bottom: 1px solid var(--border); }
.json-tree[hidden], .json-out[hidden], .json-tree-controls[hidden] { display: none; }
.json-branch > summary { cursor: pointer; padding: 3px 0; overflow-wrap: anywhere; }
.json-tree-children { margin-left: 12px; padding-left: 12px; border-left: 1px solid var(--border); }
.json-tree-value { padding: 3px 0; overflow-wrap: anywhere; white-space: pre-wrap; }
.json-tree-count { margin-left: 10px; color: var(--muted); font-family: var(--sans); font-size: 12px; }
.json-tree-more { margin: 6px 0; }
.json-grid .btn[aria-pressed="true"] { color: var(--accent); background: var(--accent-soft); }

.json-status {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  font-size: 12.5px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--panel-soft);
  color: var(--text-2);
}
.json-status.ok { background: #f0fdf4; border-color: #bbf7d0; color: #15803d; }
.json-status.error { background: #fef2f2; border-color: #fecaca; color: #b91c1c; }
.json-status .icon { font-size: 13px; }

.json-input {
  flex: 1;
  width: 100%;
  min-height: 320px;
  padding: 13px 14px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--text);
  background: transparent;
  border: 0;
  outline: none;
  resize: vertical;
  tab-size: 2;
}
.json-input.has-error { background: #fff5f5; }
.json-input::placeholder { color: #a9b3c5; font-family: var(--sans); font-size: 13px; }

.json-out {
  flex: 1;
  min-height: 320px;
  max-height: 560px;
  margin: 0;
  padding: 13px 14px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--text);
  background: transparent;
  overflow: auto;
  white-space: pre;
  word-break: break-all;
  tab-size: 2;
}
.json-out:empty::before { content: "结果将显示在这里"; color: #a9b3c5; font-family: var(--sans); font-size: 13px; }

.json-key { color: #2b6cb0; }
.json-string { color: #15803d; }
.json-number { color: #c05621; }
.json-bool { color: #b7791f; }
.json-null { color: #94a3b8; }

@media (max-width: 980px) {
  .json-grid { grid-template-columns: minmax(0, 1fr); }
  .json-input, .json-out { min-height: 200px; }
}

/* ------------------------- 番茄钟（pomodoro） ------------------------- */
.pom-wrap { display: flex; flex-direction: column; align-items: center; gap: 22px; padding: 6px 0 4px; }

.pom-tabs { display: flex; background: #eef1f6; border-radius: 12px; padding: 4px; gap: 4px; }
.pom-tab {
  padding: 7px 20px; border: 0; border-radius: 9px; font: inherit; font-size: 13.5px; font-weight: 500;
  cursor: pointer; background: transparent; color: var(--muted); transition: background .2s, color .2s;
}
.pom-tab.active { background: #fff; color: var(--text); box-shadow: 0 1px 4px rgba(20,27,45,.12); }

.pom-card {
  background: var(--panel-soft); border: 1px solid var(--border); border-radius: 20px;
  padding: 32px 40px 28px; display: flex; flex-direction: column; align-items: center; gap: 18px;
  width: 100%; max-width: 400px;
}
.pom-ring-wrap { position: relative; width: 196px; height: 196px; }
.pom-ring-svg { transform: rotate(-90deg); width: 196px; height: 196px; }
.pom-ring-bg { fill: none; stroke: #e6eaf2; stroke-width: 10; }
.pom-ring-fg { fill: none; stroke: var(--pom-accent, var(--accent)); stroke-width: 10; stroke-linecap: round; transition: stroke-dashoffset .5s linear, stroke .4s; }
.pom-ring-center { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; }
.pom-time { font-size: 2.9rem; font-weight: 700; letter-spacing: .04em; color: var(--text); font-variant-numeric: tabular-nums; }
.pom-phase { font-size: 12px; color: var(--muted); letter-spacing: .06em; }

.pom-controls { display: flex; gap: 14px; align-items: center; }
.pom-btn { width: 50px; height: 50px; border-radius: 50%; border: 0; cursor: pointer; display: grid; place-items: center; font-size: 20px; transition: transform .15s, background .15s, filter .15s; }
.pom-btn:active { transform: scale(.92); }
.pom-main { width: 62px; height: 62px; background: var(--pom-accent, var(--accent)); color: #fff; font-size: 22px; box-shadow: 0 6px 18px -8px rgba(37,99,235,.8); }
.pom-main:hover { filter: brightness(1.08); }
.pom-sub { background: #eef1f6; color: var(--muted); }
.pom-sub:hover { background: #e2e8f0; color: var(--text); }

.pom-dots { display: flex; gap: 8px; }
.pom-dot { width: 10px; height: 10px; border-radius: 50%; background: #e2e8f0; transition: background .3s; }
.pom-dot.done { background: var(--pom-accent, var(--accent)); }

.pom-side { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; width: 100%; max-width: 620px; }
.pom-box { background: var(--panel-soft); border: 1px solid var(--border); border-radius: 16px; padding: 16px 18px; }
.pom-box-title { font-size: 11.5px; font-weight: 650; color: var(--muted); letter-spacing: .08em; text-transform: uppercase; margin-bottom: 12px; }
.pom-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.pom-stat { text-align: center; }
.pom-stat b { display: block; font-size: 1.5rem; font-weight: 700; color: var(--pom-accent, var(--accent)); font-variant-numeric: tabular-nums; }
.pom-stat span { font-size: 11px; color: var(--muted); }

.pom-row { display: flex; justify-content: space-between; align-items: center; padding: 6px 0; border-bottom: 1px solid var(--border); gap: 12px; }
.pom-row:last-child { border-bottom: 0; }
.pom-row label { font-size: 13px; color: var(--text-2); }
.pom-ctrl { display: flex; align-items: center; gap: 8px; }
.pom-ctrl button { width: 28px; height: 28px; border-radius: 8px; border: 1px solid var(--border-strong); background: #fff; color: var(--text); font-size: 15px; cursor: pointer; display: grid; place-items: center; }
.pom-ctrl button:hover { background: var(--accent-soft); border-color: var(--accent-line); color: var(--accent); }
.pom-ctrl span { min-width: 34px; text-align: center; font-size: 13.5px; font-weight: 650; font-variant-numeric: tabular-nums; }

@media (max-width: 700px) {
  .pom-side { grid-template-columns: 1fr; }
  .pom-card { padding: 24px 20px; }
  .pom-time { font-size: 2.3rem; }
  .pom-ring-wrap, .pom-ring-svg { width: 168px; height: 168px; }
}

/* ------------------------- 文件转 Base64（file-base64） ------------------------- */
.f64-out {
  width: 100%;
  min-height: 240px;
  max-height: 460px;
  padding: 13px 14px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--text);
  background: var(--panel-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  outline: none;
  resize: vertical;
  word-break: break-all;
}
.f64-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.f64-actions .spacer { flex: 1; }

/* 手机端：紧凑布局、触控尺寸及安全区 */
@media (max-width: 600px) {
  .layout, .content, .panel, .panel-body, .tool-form, .cipher-grid, .json-grid, .imgc-workspace { min-width: 0; max-width: 100%; }
  .cipher-grid, .json-grid, .imgc-cards, .pom-side { grid-template-columns: minmax(0, 1fr); }
  .nav-item .nav-label { white-space: normal; overflow-wrap: anywhere; }
  .app { min-height: 100svh; }
  .topbar { gap: 8px; padding: 8px max(12px, env(safe-area-inset-right)) 8px max(12px, env(safe-area-inset-left)); }
  .brand { min-width: 0; gap: 8px; text-decoration: none; color: inherit; }
  .brand-text em { font-size: 10px; letter-spacing: .04em; }
  .topbar-actions { flex: none; gap: 8px; }
  .status-dot { flex: none; }
  .status-text { display: none; }
  .layout { gap: 12px; padding: 12px max(10px, env(safe-area-inset-right)) max(24px, env(safe-area-inset-bottom)) max(10px, env(safe-area-inset-left)); }
  .sidebar { padding: 8px 10px; }
  .panel-head { padding: 16px 14px 12px; }
  .panel-body { padding: 14px; gap: 14px; }
  .panel-title { font-size: 17px; }
  .form-grid, .form-grid.secret-row { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .input, .select, .search, textarea.input, .cipher-textarea, .json-input, .f64-out { font-size: 16px; }
  .input, .select, .search { min-height: 44px; min-width: 0; }
  .btn { min-height: 44px; padding: 9px 12px; }
  .btn-sm, .btn-icon { padding: 6px 10px; }
  .switch { min-height: 44px; }
  .input-secret .eye { width: 40px; height: 40px; right: 2px; }
  .input-secret .input { padding-right: 46px; }
  .cipher-pane, .imgc-card, .pom-box, .modal-card { min-width: 0; }
  .cipher-controls, .result-actions, .json-tree-controls { flex-wrap: wrap; }
  .pane-head, .pane-foot, .imgc-card-head, .imgc-settings-head, .advanced summary { flex-wrap: wrap; }
  .pane-tools, .imgc-card-tools, .result-item .copy { opacity: 1; }
  .pane-tools { flex-wrap: wrap; }
  .pane-foot .hint { display: none; }
  .advanced .adv-hint { margin-left: 0; overflow-wrap: anywhere; }
  .json-toolbar .select { width: 100%; }
  .json-tree { min-height: 200px; }
  .json-out, pre.code { white-space: pre-wrap; overflow-wrap: anywhere; word-break: break-word; }
  .json-tree-children { margin-left: 4px; padding-left: 6px; }
  .json-tree-value, .json-branch > summary { word-break: break-word; }
  .chip { max-width: 100%; flex-wrap: wrap; overflow-wrap: anywhere; }
  .note, .error-box, .json-status, .panel-desc { overflow-wrap: anywhere; }
  .imgc-drop { padding: 24px 12px; }
  .imgc-drop-hint { text-align: center; overflow-wrap: anywhere; }
  .imgc-settings { padding: 12px; }
  .imgc-seg-btn, .imgc-preset { min-height: 44px; }
  .pom-tabs { width: 100%; }
  .pom-tab { flex: 1; min-width: 0; min-height: 44px; padding: 7px 8px; }
  .pom-ctrl button { width: 44px; height: 44px; }
  .pom-box { padding: 14px 12px; }
  .pom-row { gap: 8px; flex-wrap: wrap; }
  .diff-heading { display: none; }
  .diff-row { grid-template-columns: minmax(0, 1fr); border-bottom: 2px solid var(--border-strong); }
  .diff-cell { display: grid; grid-template-columns: 24px minmax(0, 1fr); padding: 8px; font-size: 13px; }
  .diff-cell::before { content: attr(data-label); grid-column: 1 / -1; margin-bottom: 4px; color: var(--text-2); font: 600 12px/1.5 var(--sans); }
  .diff-left { border-right: 0; }
  .diff-empty { display: none; }
  .diff-line { min-width: 24px; padding-right: 5px; }
  .modal { padding: 10px; }
  .modal-card { max-height: 90vh; max-height: 90dvh; }
  .modal-head { position: sticky; top: 0; background: var(--panel); z-index: 1; padding: 10px 14px; }
  .modal-body { padding: 14px; }
  .modal-body > * { min-width: 0; max-width: 100%; }
  .toast-wrap { left: 12px; right: 12px; bottom: max(12px, env(safe-area-inset-bottom)); pointer-events: none; }
  .toast { overflow-wrap: anywhere; }
  .zoom-btn { min-height: 44px; }
  .form-actions > .btn, .imgc-actions > .btn, .f64-actions > .btn { max-width: 100%; white-space: normal; overflow-wrap: anywhere; }
  .history-item { flex-wrap: wrap; }
  .history-item .value { flex-basis: 100%; white-space: pre-wrap; overflow-wrap: anywhere; }
}