/* =========================================================
   Rembg Studio — 设计系统 v3.0
   美学方向：Luxury Darkroom（奢华暗房）
   主色 · 琥珀金 #d4a853 → 暖金渐变 #e6c27a
   背景 · 丝绒黑 #070708  表面 · 暖黑 #121214
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Instrument+Serif:ital@0;1&display=swap');

:root {
  --bg: #070708;
  --bg-2: #0d0d10;
  --surface: #121214;
  --surface-2: #1a1a1e;
  --surface-3: #22222a;
  --border: #2a2a32;
  --border-soft: #1e1e24;
  --border-glow: rgba(212, 168, 83, 0.25);

  --accent: #d4a853;
  --accent-light: #e6c27a;
  --accent-dark: #b8913e;
  --accent-soft: rgba(212, 168, 83, 0.12);
  --accent-glow: rgba(212, 168, 83, 0.30);
  --accent-glow-strong: rgba(212, 168, 83, 0.50);

  --gold-gradient: linear-gradient(135deg, #e6c27a 0%, #d4a853 40%, #c49a3f 100%);
  --gold-gradient-subtle: linear-gradient(135deg, rgba(230, 194, 122, 0.15), rgba(196, 154, 63, 0.05));

  --text: #f0ede4;
  --text-dim: #a8a49a;
  --text-faint: #6b6a66;
  --text-gold: #d4a853;

  --ok: #56c271;
  --ok-soft: rgba(86, 194, 113, 0.12);
  --warn: #e0a43c;
  --warn-soft: rgba(224, 164, 60, 0.12);
  --err: #e2574c;
  --err-soft: rgba(226, 87, 76, 0.12);

  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'Space Grotesk', -apple-system, sans-serif;
  --font-mono: 'SFMono-Regular', Menlo, Consolas, monospace;

  --r-xs: 6px;
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 36px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 0.45s;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }

body {
  font-family: var(--font-body);
  background:
    radial-gradient(1400px 700px at 80% -15%, rgba(212, 168, 83, 0.07), transparent 60%),
    radial-gradient(1000px 600px at 0% 115%, rgba(180, 140, 60, 0.04), transparent 55%),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.025'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: "";
  position: fixed;
  top: -300px;
  right: -200px;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 168, 83, 0.03), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

::selection { background: var(--accent); color: #131313; }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: #3a3a42; }

a { color: var(--accent); text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* ============ 通用按钮 ============ */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease),
              transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
  overflow: hidden;
}
.btn:hover { border-color: var(--accent); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

.btn--primary {
  background: var(--gold-gradient);
  border-color: transparent;
  color: #17140d;
  font-weight: 600;
  box-shadow: 0 4px 20px -6px var(--accent-glow);
}
.btn--primary:hover:not(:disabled) {
  box-shadow: 0 8px 28px -6px var(--accent-glow-strong);
  filter: brightness(1.08);
}
.btn--primary:disabled {
  background: linear-gradient(135deg, #5a4a2a, #4a3d22);
  color: rgba(23, 20, 13, 0.5);
  box-shadow: none;
}

.btn--danger {
  background: transparent;
  border-color: rgba(226, 87, 76, 0.4);
  color: var(--err);
}
.btn--danger:hover:not(:disabled) { background: var(--err-soft); border-color: var(--err); }
.btn--ghost { background: transparent; }
.btn--ghost:hover { background: var(--accent-soft); }
.btn--sm { padding: 8px 14px; font-size: 12px; }
.btn--xs { padding: 4px 10px; font-size: 11px; border-radius: var(--r-xs); }

/* ============ 顶部栏 ============ */
.topbar {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 40px;
  border-bottom: 1px solid var(--border-soft);
  backdrop-filter: blur(16px);
  background: rgba(7, 7, 8, 0.7);
}
.brand { display: flex; align-items: baseline; gap: 12px; }
.brand__mark {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--gold-gradient);
  box-shadow: 0 0 0 4px var(--accent-soft), 0 0 20px var(--accent-glow);
}
.brand__name {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 0.02em;
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.brand__sub { font-size: 10px; color: var(--text-faint); letter-spacing: 0.3em; text-transform: uppercase; }
.topbar__right { display: flex; align-items: center; gap: 16px; }
.topbar__user { font-size: 13px; color: var(--text-dim); }

/* ============ 工作台布局 ============ */
.workspace {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 340px 1fr;
  grid-template-rows: auto 1fr;
  gap: 14px;
  padding: 14px 24px 24px;
  max-width: 1480px;
  margin: 0 auto;
  min-height: calc(100vh - 58px);
}

.log-panel { grid-column: 1 / -1; }
.sidebar { display: flex; flex-direction: column; gap: 12px; }
.main { display: flex; flex-direction: column; gap: 12px; min-width: 0; }

/* ============ 卡片面板 ============ */
.panel {
  background: linear-gradient(180deg, rgba(26, 26, 30, 0.75), rgba(18, 18, 20, 0.75));
  border: 1px solid var(--border-soft);
  border-radius: var(--r-md);
  backdrop-filter: blur(14px);
  transition: border-color var(--dur) var(--ease);
}
.panel:hover { border-color: var(--border); }
.panel__head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-soft);
}
.panel__title {
  font-family: var(--font-display);
  font-size: 16px;
  letter-spacing: 0.02em;
  color: var(--text);
}
.panel__body { padding: 14px 16px; }

/* ============ 日志面板 ============ */
.log-panel .panel__head { cursor: pointer; user-select: none; }
.log-panel .panel__head:hover { background: var(--accent-soft); }
.log-body {
  max-height: 120px;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  padding: 8px 14px;
  transition: max-height var(--dur) var(--ease), padding var(--dur) var(--ease);
}
.log-body.collapsed { max-height: 0; padding: 0 14px; overflow: hidden; }
.log-line { display: flex; gap: 10px; align-items: baseline; padding: 1px 0; }
.log-line__time { color: var(--text-faint); flex-shrink: 0; font-size: 11px; }
.log-line__msg { word-break: break-all; }
.log-line .lv-info { color: var(--text-dim); }
.log-line .lv-success { color: var(--ok); }
.log-line .lv-warn { color: var(--warn); }
.log-line .lv-error { color: var(--err); }
.log-empty { color: var(--text-faint); font-family: var(--font-body); font-size: 13px; padding: 4px 0; }
.log-clear { font-size: 11px; color: var(--text-faint); background: none; border: none; text-decoration: underline; cursor: pointer; margin-left: auto; }
.log-clear:hover { color: var(--accent); }
.log-toggle { font-size: 11px; color: var(--text-faint); background: none; border: none; cursor: pointer; transition: transform var(--dur) var(--ease); }
.log-toggle.open { transform: rotate(180deg); }

/* 队列徽章 */
.queue-badge {
  font-size: 11px;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 2px 10px;
  border-radius: 30px;
  font-weight: 500;
}

/* ============ 上传区域 ============ */
.dropzone {
  border: 1.5px dashed var(--border);
  border-radius: var(--r-md);
  padding: 20px 14px;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
  background: rgba(16, 16, 19, 0.4);
}
.dropzone:hover, .dropzone.dragover {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: 0 0 24px -8px var(--accent-glow);
}
.dropzone--has-image { border-style: solid; border-color: var(--border); padding: 6px; }
.dropzone__icon { display: flex; align-items: center; justify-content: center; margin-bottom: 6px; }
.dropzone__text { font-size: 13px; color: var(--text-dim); }
.dropzone__text strong { color: var(--accent); font-weight: 500; }
.dropzone__hint { font-size: 11px; color: var(--text-faint); margin-top: 2px; }
.dropzone__preview { display: none; max-width: 100%; max-height: 140px; border-radius: var(--r-sm); object-fit: contain; margin: 0 auto; }
#uploadFile { display: none; }

/* ============ 模型选择 ============ */
.model-selector { display: flex; flex-direction: column; gap: 8px; }
.model-selector select {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  background: var(--bg-2);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 13px;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23d4a853' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.model-selector select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.model-selector optgroup { background: var(--surface); color: var(--text-gold); font-size: 11px; font-weight: 600; letter-spacing: 0.1em; }
.model-selector option { background: var(--bg-2); color: var(--text); font-size: 13px; }
.model-info {
  padding: 8px 12px;
  border-radius: var(--r-sm);
  background: var(--gold-gradient-subtle);
  border: 1px solid rgba(212, 168, 83, 0.15);
  font-size: 12px;
  line-height: 1.5;
  min-height: 50px;
}
.model-info__name { font-weight: 600; color: var(--accent-light); font-size: 13px; }
.model-info__scene { color: var(--text-dim); margin-top: 1px; font-size: 11px; }
.model-info__scene::before { content: "📌 "; color: var(--text-faint); }
.model-info__feature { color: var(--text-dim); margin-top: 1px; font-size: 11px; }
.model-info__feature::before { content: "✨ "; color: var(--text-faint); }

/* ============ 参数 ============ */
.param-group { display: flex; flex-direction: column; gap: 12px; }
.param-group__title {
  font-size: 10px; letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--text-faint); display: flex; align-items: center; gap: 10px;
}
.param-group__title::after { content: ""; flex: 1; height: 1px; background: var(--border-soft); }
.field { display: flex; flex-direction: column; gap: 5px; }
.field__label {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 12px; letter-spacing: 0.06em; color: var(--text-faint);
}
.field__label .val { color: var(--accent); font-family: var(--font-mono); letter-spacing: 0; font-size: 13px; }
.field__desc { font-size: 10px; color: var(--text-faint); line-height: 1.4; }
.switch { position: relative; display: inline-flex; align-items: center; gap: 10px; cursor: pointer; user-select: none; }
.switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.switch__track {
  width: 38px; height: 20px; border-radius: 20px;
  background: var(--border); position: relative; transition: background var(--dur) var(--ease); flex-shrink: 0;
}
.switch__track::after {
  content: ""; position: absolute; top: 2px; left: 2px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--text-dim); transition: transform var(--dur) var(--ease), background var(--dur) var(--ease);
}
.switch input:checked + .switch__track { background: var(--accent); }
.switch input:checked + .switch__track::after { transform: translateX(18px); background: #17140d; }
.switch__label { font-size: 13px; color: var(--text-dim); }

input[type="range"] {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 4px; border-radius: 4px; background: var(--border); outline: none; cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--gold-gradient); border: 2px solid #17140d;
  box-shadow: 0 0 0 1px var(--accent), 0 0 12px var(--accent-glow);
  transition: transform var(--dur) var(--ease);
}
input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.15); }
input[type="range"]::-moz-range-thumb {
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--gold-gradient); border: 2px solid #17140d;
}

/* ============ 任务墙 ============ */
.task-wall {
  flex: 1;
  overflow-y: auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
  align-content: start;
  min-height: 200px;
}
.task-wall__empty {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text-faint);
  padding: 60px 20px;
}
.task-wall__empty-icon { font-size: 36px; opacity: 0.35; margin-bottom: 10px; }
.task-wall__empty p { font-size: 13px; }

/* 任务卡片 */
.task-card {
  background: linear-gradient(180deg, rgba(22, 22, 26, 0.8), rgba(16, 16, 19, 0.8));
  border: 1px solid var(--border-soft);
  border-radius: var(--r-sm);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
  animation: fadeUp 0.4s var(--ease) both;
  display: flex;
  flex-direction: column;
}
.task-card:hover { border-color: var(--border); transform: translateY(-2px); }
.task-card--completed { border-color: rgba(86, 194, 113, 0.2); }
.task-card--failed { border-color: rgba(226, 87, 76, 0.2); }
.task-card--processing { border-color: rgba(212, 168, 83, 0.2); }

/* 卡片缩略图 */
.task-card__thumb {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--bg-2);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.task-card__thumb img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.3s var(--ease);
}
.task-card__thumb:hover img { transform: scale(1.05); }

/* 成品图区域（已完成卡片） */
.task-card__result-wrapper {
  padding: 0;
  display: flex;
  flex-direction: column;
}
.task-card__result {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--bg-2);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border-soft);
}
.task-card__result img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.3s var(--ease);
}
.task-card__result:hover img { transform: scale(1.05); }

/* 下载按钮（成品/Mask 各自独立） */
.task-card__dl {
  width: 100%;
  padding: 8px 10px;
  font-size: 12px;
  border: none;
  border-radius: 0;
  background: var(--gold-gradient);
  color: #17140d;
  font-weight: 600;
  cursor: pointer;
  transition: filter 0.3s var(--ease);
}
.task-card__dl:hover { filter: brightness(1.1); }
.task-card__dl + .task-card__dl { border-top: 1px solid rgba(255,255,255,0.08); }

/* 原图小缩略图（底部） */
.task-card__origin-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-top: 1px solid var(--border-soft);
  background: rgba(0,0,0,0.15);
}
.task-card__origin-thumb {
  width: 36px;
  height: 36px;
  border-radius: var(--r-xs);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg-2);
  display: flex;
  align-items: center;
  justify-content: center;
}
.task-card__origin-thumb img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.task-card__origin-label {
  font-size: 11px;
  color: var(--text-faint);
}

/* Mask 缩略图（在原图行内） */
.task-card__mask-thumb {
  position: relative;
  cursor: pointer;
  border: 1px solid var(--accent);
  border-radius: var(--r-xs);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.task-card__mask-thumb:hover {
  border-color: var(--accent-light);
  box-shadow: 0 0 12px var(--accent-glow);
}
.task-card__mask-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  font-size: 7px;
  text-align: center;
  color: #fff;
  background: rgba(0,0,0,0.65);
  line-height: 1.4;
  letter-spacing: 0.1em;
  pointer-events: none;
}

/* 卡片状态标签 */
.task-card__status {
  position: absolute;
  top: 6px;
  right: 6px;
  z-index: 2;
}
.task-card__status .tag {
  padding: 1px 7px;
  font-size: 9px;
  border-radius: 20px;
  backdrop-filter: blur(4px);
}

/* 卡片信息 */
.task-card__info {
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.task-card__filename {
  font-size: 12px;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.task-card__model {
  font-size: 10px;
  color: var(--text-faint);
}
.task-card__progress {
  margin-top: 2px;
  height: 3px;
  border-radius: 3px;
  background: var(--border);
  overflow: hidden;
}
.task-card__progress-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--gold-gradient);
  transition: width 0.4s var(--ease);
}
.task-card__progress-fill--failed { background: var(--err); }
.task-card__progress-fill--completed { background: var(--ok); }

/* 卡片操作按钮 */
.task-card__actions {
  display: flex;
  gap: 4px;
  padding: 6px 10px 8px;
  border-top: 1px solid var(--border-soft);
}
.task-card__actions .btn { flex: 1; }
.task-card__actions .btn:disabled { opacity: 0.25; }

/* 卡片删除按钮 */
.task-card__remove {
  position: absolute;
  top: 6px;
  left: 6px;
  z-index: 2;
  width: 22px; height: 22px;
  border-radius: 50%;
  border: none;
  background: rgba(0,0,0,0.6);
  color: var(--text-faint);
  font-size: 14px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transition: opacity var(--dur) var(--ease), color var(--dur) var(--ease);
  backdrop-filter: blur(4px);
}
.task-card:hover .task-card__remove { opacity: 1; }
.task-card__remove:hover { color: var(--err); background: rgba(226, 87, 76, 0.3); }

/* 队列序号 */
.task-card__order {
  position: absolute;
  top: 6px;
  left: 6px;
  z-index: 2;
  font-size: 10px;
  color: var(--warn);
  background: rgba(0,0,0,0.6);
  padding: 1px 7px;
  border-radius: 20px;
  backdrop-filter: blur(4px);
}

/* ============ 队列信息 ============ */
.queue-info { font-size: 11px; color: var(--text-faint); }

/* ============ 徽标 ============ */
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 30px;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
}
.tag--idle { background: var(--border); color: var(--text-dim); }
.tag--queued { background: var(--warn-soft); color: var(--warn); }
.tag--processing { background: var(--accent-soft); color: var(--accent); }
.tag--completed { background: var(--ok-soft); color: var(--ok); }
.tag--failed, .tag--cancelled { background: var(--err-soft); color: var(--err); }

/* ============ 分割线 ============ */
.divider { height: 1px; background: var(--border-soft); border: none; margin: 12px 0; }

/* ============ 预览弹窗 ============ */
.preview-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur) var(--ease);
}
.preview-modal.open { opacity: 1; pointer-events: auto; }
.preview-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(12px);
}
.preview-modal__content {
  position: relative;
  width: 90vw;
  height: 90vh;
  max-width: 1400px;
  max-height: 900px;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0,0,0,0.6);
  animation: fadeUp 0.3s var(--ease) both;
}

/* 顶部栏 */
.preview-modal__topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-soft);
  background: var(--bg-2);
  flex-shrink: 0;
}
.preview-modal__title {
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--text);
}
.preview-modal__close {
  background: none;
  border: none;
  color: var(--text-faint);
  font-size: 22px;
  cursor: pointer;
  transition: color var(--dur) var(--ease);
  line-height: 1;
  padding: 4px;
}
.preview-modal__close:hover { color: var(--text); }

/* 图片区域 */
.preview-modal__image-area {
  flex: 1;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at center, #1a1a1e 0%, #0d0d10 100%);
  cursor: grab;
}
.preview-modal__image-area:active { cursor: grabbing; }
.preview-modal__img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.1s ease;
  user-select: none;
  -webkit-user-drag: none;
  transform-origin: center center;
  will-change: transform;
}

/* 导航箭头 */
.preview-modal__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 5;
  width: 40px; height: 60px;
  border: none;
  background: rgba(0,0,0,0.4);
  color: var(--text-dim);
  font-size: 28px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
  backdrop-filter: blur(4px);
  opacity: 0;
}
.preview-modal__image-area:hover .preview-modal__nav { opacity: 1; }
.preview-modal__nav:hover { background: rgba(0,0,0,0.7); color: var(--text); }
.preview-modal__nav--prev { left: 0; border-radius: 0 8px 8px 0; }
.preview-modal__nav--next { right: 0; border-radius: 8px 0 0 8px; }

/* 缩放提示 */
.preview-modal__zoom-hint {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  color: var(--text-faint);
  background: rgba(0,0,0,0.5);
  padding: 4px 14px;
  border-radius: 20px;
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
  pointer-events: none;
}
.preview-modal__image-area:hover .preview-modal__zoom-hint { opacity: 1; }

/* 底部工具栏 */
.preview-modal__toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  border-top: 1px solid var(--border-soft);
  background: var(--bg-2);
  flex-shrink: 0;
}
.preview-modal__toolbar-group {
  display: flex;
  align-items: center;
  gap: 4px;
}

.preview-tool {
  width: 32px; height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: var(--r-xs);
  background: transparent;
  color: var(--text-dim);
  font-size: 15px;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.preview-tool:hover { background: var(--surface-2); color: var(--text); border-color: var(--border); }
.preview-tool:active { background: var(--surface-3); }
.preview-tool__sep {
  width: 1px; height: 20px;
  background: var(--border-soft);
  margin: 0 4px;
}

.preview-modal__counter {
  font-size: 12px;
  color: var(--text-faint);
  font-family: var(--font-mono);
  margin-right: 8px;
}

/* ============ 动画 ============ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .workspace { grid-template-columns: 1fr; padding: 10px 12px 16px; }
  .topbar { padding: 12px 16px; }
  .task-wall { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
  .preview-modal__content { width: 96vw; height: 96vh; }
}