/* ============================================================
   文案改写工作台 —— 视觉样式
   设计语言：深空极光 + 玻璃拟态 + 微交互动效
   ============================================================ */

:root {
  /* 底色 */
  --bg: #080b11;
  --bg-soft: #0c1018;

  /* 表面 */
  --surface: rgba(20, 26, 36, 0.72);
  --surface-solid: #141a24;
  --surface-2: #1a2130;
  --surface-3: #222b3c;

  /* 描边 */
  --line: rgba(255, 255, 255, 0.07);
  --line-2: rgba(255, 255, 255, 0.12);
  --line-3: rgba(255, 255, 255, 0.18);

  /* 文字 */
  --text: #e9eff8;
  --text-2: #9aa8bb;
  --text-3: #647084;

  /* 强调色 */
  --accent: #4f8cff;
  --accent-2: #8b5cf6;
  --accent-3: #22d3ee;
  --accent-glow: rgba(79, 140, 255, 0.35);

  /* 语义色 */
  --ok: #34d399;
  --warn: #fbbf24;
  --err: #f87171;

  /* 尺寸 */
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 18px;

  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.5);
  --inner-hi: inset 0 1px 0 rgba(255, 255, 255, 0.06);

  /* 字体 */
  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", Consolas, monospace;

  /* 缓动 */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ---------- 基础 ---------- */

* { box-sizing: border-box; }

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* 极光背景层 */
body::before {
  content: "";
  position: fixed;
  inset: -30%;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(closest-side, rgba(79, 140, 255, 0.16), transparent 70%) 18% 12% / 52vw 52vw no-repeat,
    radial-gradient(closest-side, rgba(139, 92, 246, 0.14), transparent 70%) 82% 8% / 46vw 46vw no-repeat,
    radial-gradient(closest-side, rgba(34, 211, 238, 0.09), transparent 70%) 50% 95% / 60vw 60vw no-repeat;
  filter: blur(24px);
  animation: auroraDrift 26s ease-in-out infinite alternate;
}

/* 细网格纹理 */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.5;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 20%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 20%, transparent 80%);
}

@keyframes auroraDrift {
  0%   { transform: translate3d(0, 0, 0) scale(1); }
  50%  { transform: translate3d(2%, -2%, 0) scale(1.06); }
  100% { transform: translate3d(-2%, 2%, 0) scale(1.03); }
}

/* 选中态 */
::selection {
  background: rgba(79, 140, 255, 0.32);
  color: #fff;
}

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #2b3547, #222b3a);
  border-radius: 8px;
  border: 2px solid transparent;
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, #3a475d, #2c3648);
  background-clip: padding-box;
}

/* 焦点可见性 */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* 表单控件用自带的光环表示焦点，避免 outline 与 box-shadow 双重描边 */
textarea:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: none;
}

/* ---------- 顶栏 ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 26px;
  background: rgba(8, 11, 17, 0.72);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  border-bottom: 1px solid var(--line);
}

/* 顶栏底部渐变光带 */
.topbar::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg,
    transparent 0%,
    rgba(79, 140, 255, 0.5) 25%,
    rgba(139, 92, 246, 0.5) 55%,
    transparent 100%);
  opacity: 0.55;
}

.brand { display: flex; align-items: center; gap: 13px; min-width: 0; }

.logo {
  width: 40px; height: 40px;
  flex: 0 0 40px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  font-weight: 700;
  font-size: 18px;
  color: #fff;
  background: linear-gradient(140deg, var(--accent) 0%, var(--accent-2) 70%, #a855f7 100%);
  box-shadow:
    0 4px 14px rgba(79, 140, 255, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.35);
  position: relative;
  overflow: hidden;
}

/* logo 光泽扫过 */
.logo::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 30%, rgba(255, 255, 255, 0.5) 48%, transparent 62%);
  transform: translateX(-140%);
  animation: logoShine 5.5s ease-in-out infinite;
}

@keyframes logoShine {
  0%, 62% { transform: translateX(-140%); }
  82%, 100% { transform: translateX(140%); }
}

.topbar h1 {
  margin: 0;
  font-size: 16px;
  font-weight: 650;
  letter-spacing: 0.2px;
  background: linear-gradient(100deg, #ffffff, #c9d8f0);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.sub {
  margin: 1px 0 0;
  font-size: 12px;
  color: var(--text-3);
  letter-spacing: 0.1px;
}

.top-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }

/* 状态徽章 */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 500;
  padding: 5px 11px 5px 9px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  color: var(--text-2);
  background: var(--surface-2);
  white-space: nowrap;
}

.badge::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 0 currentColor;
}

.badge.ok {
  color: var(--ok);
  border-color: rgba(52, 211, 153, 0.32);
  background: rgba(52, 211, 153, 0.09);
}
.badge.ok::before { animation: pulseDot 2.4s ease-out infinite; }

.badge.err {
  color: var(--err);
  border-color: rgba(248, 113, 113, 0.32);
  background: rgba(248, 113, 113, 0.09);
}

@keyframes pulseDot {
  0%   { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.55); }
  70%  { box-shadow: 0 0 0 6px rgba(52, 211, 153, 0); }
  100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

.ghost-btn {
  font-size: 13px;
  color: var(--text-2);
  text-decoration: none;
  padding: 6px 13px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-2);
  background: var(--surface-2);
  transition:
    color 0.18s var(--ease),
    background-color 0.18s var(--ease),
    border-color 0.18s var(--ease),
    transform 0.18s var(--ease),
    box-shadow 0.18s var(--ease);
  white-space: nowrap;
}
.ghost-btn:hover {
  color: var(--text);
  border-color: var(--line-3);
  background: var(--surface-3);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* ---------- Tab 切换 ---------- */

.tabs {
  display: flex;
  gap: 3px;
  padding: 3px;
  border-radius: 11px;
  background: rgba(20, 26, 36, 0.85);
  border: 1px solid var(--line);
  box-shadow: var(--inner-hi);
}

.tab {
  position: relative;
  border: none;
  background: transparent;
  color: var(--text-3);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  padding: 7px 17px;
  border-radius: 8px;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.18s var(--ease), background 0.18s var(--ease);
}

.tab:hover { color: var(--text-2); }

.tab.active {
  color: #dbe9ff;
  background: linear-gradient(135deg, rgba(79, 140, 255, 0.24), rgba(139, 92, 246, 0.24));
  box-shadow:
    inset 0 0 0 1px rgba(139, 92, 246, 0.32),
    0 2px 10px rgba(79, 140, 255, 0.16);
}

/* ---------- 布局 ---------- */

.layout {
  display: grid;
  grid-template-columns: minmax(380px, 1fr) minmax(430px, 1.12fr);
  gap: 18px;
  padding: 20px 26px 48px;
  align-items: start;
  max-width: 1640px;
  margin: 0 auto;
  animation: viewIn 0.35s var(--ease-out) both;
}

@keyframes viewIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (max-width: 1024px) {
  .layout { grid-template-columns: 1fr; padding: 14px 14px 40px; }
}

/* ---------- 面板 ---------- */

.panel {
  display: flex;
  flex-direction: column;
  gap: 13px;
  padding: 18px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--surface);
  backdrop-filter: blur(14px) saturate(1.25);
  -webkit-backdrop-filter: blur(14px) saturate(1.25);
  box-shadow: var(--shadow), var(--inner-hi);
  position: relative;
}

/* 面板顶部高光 */
.panel::before {
  content: "";
  position: absolute;
  top: 0; left: 12%; right: 12%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.22), transparent);
  pointer-events: none;
}

.input-panel {
  position: sticky;
  top: 84px;
}
@media (max-width: 1024px) {
  .input-panel { position: static; }
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.panel-head.mt { margin-top: 4px; }

.panel-head h2 {
  margin: 0;
  font-size: 11.5px;
  font-weight: 650;
  letter-spacing: 1.1px;
  text-transform: uppercase;
  color: var(--text-3);
}

.counter {
  font-size: 12px;
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
  font-family: var(--font-mono);
  padding: 2px 8px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.03);
  transition: color 0.2s;
}
.counter.over { color: var(--err); background: rgba(248, 113, 113, 0.1); }

/* ---------- 输入控件 ---------- */

textarea,
input[type="text"],
input[type="password"],
input[type="number"],
select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--line-2);
  background: rgba(10, 14, 20, 0.65);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  outline: none;
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease), background 0.18s var(--ease);
}

textarea::placeholder,
input::placeholder { color: var(--text-3); }

textarea:hover,
input:hover,
select:hover { border-color: var(--line-3); }

textarea:focus,
input:focus,
select:focus {
  border-color: rgba(79, 140, 255, 0.65);
  background: rgba(12, 17, 25, 0.9);
  box-shadow: 0 0 0 3px rgba(79, 140, 255, 0.14);
}

textarea {
  resize: vertical;
  line-height: 1.72;
  min-height: 90px;
}

#sourceText {
  min-height: 230px;
  font-size: 14.5px;
}

#imgText, #imgPromptCustom { min-height: 190px; }

/* 下拉箭头 */
select {
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  padding-right: 32px;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--text-3) 50%),
    linear-gradient(135deg, var(--text-3) 50%, transparent 50%);
  background-position: calc(100% - 16px) 50%, calc(100% - 11px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}
select:hover { background-image:
    linear-gradient(45deg, transparent 50%, var(--text-2) 50%),
    linear-gradient(135deg, var(--text-2) 50%, transparent 50%); }
select option { background: #141a24; color: var(--text); }

/* 工具栏 */
.toolbar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.spacer { flex: 1; }
.mini-hint { font-size: 12px; color: var(--text-3); }

/* 小按钮 */
.mini-btn {
  font-family: inherit;
  font-size: 12px;
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-2);
  background: var(--surface-2);
  color: var(--text-2);
  cursor: pointer;
  transition:
    color 0.16s var(--ease),
    background-color 0.16s var(--ease),
    border-color 0.16s var(--ease),
    transform 0.16s var(--ease);
  white-space: nowrap;
}
.mini-btn:hover:not(:disabled) {
  color: var(--text);
  border-color: var(--line-3);
  background: var(--surface-3);
  transform: translateY(-1px);
}
.mini-btn:active:not(:disabled) { transform: translateY(0); }
.mini-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ---------- 模式选择 ---------- */

.mode-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 8px;
}

.mode-item {
  position: relative;
  padding: 10px 6px;
  text-align: center;
  border-radius: 10px;
  border: 1px solid var(--line-2);
  background: rgba(26, 33, 48, 0.6);
  font-size: 13px;
  color: var(--text-2);
  cursor: pointer;
  user-select: none;
  overflow: hidden;
  /* 注意：不要用 transition: all —— 会让 font-weight 也参与过渡，选中时文字抖动 */
  transition:
    color 0.18s var(--ease),
    background-color 0.18s var(--ease),
    border-color 0.18s var(--ease),
    transform 0.18s var(--ease),
    box-shadow 0.18s var(--ease);
}

.mode-item:hover {
  color: var(--text);
  border-color: var(--line-3);
  background: var(--surface-3);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
}

.mode-item:active { transform: translateY(0) scale(0.98); }

.mode-item.active {
  color: #dce9ff;
  font-weight: 600;
  border-color: rgba(99, 145, 255, 0.6);
  background: linear-gradient(135deg, rgba(79, 140, 255, 0.22), rgba(139, 92, 246, 0.22));
  box-shadow:
    0 0 0 1px rgba(139, 92, 246, 0.22),
    0 4px 16px rgba(79, 140, 255, 0.22);
}

/* 选中态流光 */
.mode-item.active::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 35%, rgba(255, 255, 255, 0.18) 50%, transparent 65%);
  transform: translateX(-120%);
  animation: modeShine 0.75s var(--ease-out);
}

@keyframes modeShine {
  to { transform: translateX(120%); }
}

/* ---------- 表单网格 ---------- */

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 11px;
}
@media (max-width: 520px) {
  .form-grid { grid-template-columns: 1fr; }
}

.field { display: flex; flex-direction: column; gap: 6px; }
.field.block { grid-column: 1 / -1; }
.field > span {
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.4px;
  color: var(--text-3);
}
.field small { font-size: 11.5px; color: var(--text-3); line-height: 1.5; }

/* hidden 必须强制生效，否则被 .field 的 flex 覆盖 */
.field[hidden], [hidden] { display: none !important; }

/* ---------- 分段控件 ---------- */

.seg {
  display: flex;
  gap: 3px;
  padding: 3px;
  border-radius: 11px;
  background: rgba(10, 14, 20, 0.6);
  border: 1px solid var(--line);
}

.seg-item {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--text-3);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  padding: 8px;
  border-radius: 8px;
  cursor: pointer;
  transition:
    color 0.18s var(--ease),
    background-color 0.18s var(--ease),
    box-shadow 0.18s var(--ease);
}
.seg-item:hover { color: var(--text-2); }

.seg-item.active {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), #6d7dff);
  box-shadow: 0 3px 12px rgba(79, 140, 255, 0.4);
}

/* ---------- 主按钮 ---------- */

.primary-btn {
  position: relative;
  margin-top: 4px;
  width: 100%;
  padding: 13px;
  border: none;
  border-radius: 12px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 650;
  letter-spacing: 0.3px;
  color: #fff;
  cursor: pointer;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: linear-gradient(135deg, #4f8cff 0%, #6d6bff 50%, #8b5cf6 100%);
  background-size: 160% 100%;
  box-shadow:
    0 6px 20px rgba(79, 140, 255, 0.34),
    inset 0 1px 0 rgba(255, 255, 255, 0.28);
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease), background-position 0.5s var(--ease);
}

.primary-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  background-position: 100% 0;
  box-shadow:
    0 10px 30px rgba(79, 140, 255, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.primary-btn:active:not(:disabled) {
  transform: translateY(0) scale(0.99);
}

/* 光泽扫过 */
.primary-btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 38%, rgba(255, 255, 255, 0.35) 50%, transparent 62%);
  transform: translateX(-130%);
}
.primary-btn:hover:not(:disabled)::after {
  animation: btnShine 0.85s var(--ease-out);
}

@keyframes btnShine {
  to { transform: translateX(130%); }
}

.primary-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* 加载圈 */
.spinner {
  width: 15px; height: 15px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  animation: spin 0.65s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- 结果区 ---------- */

.result-panel { min-height: 440px; }
.result-actions { display: flex; gap: 8px; }

.meta-bar {
  font-size: 12px;
  color: var(--text-2);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(26, 33, 48, 0.7);
  font-family: var(--font-mono);
  letter-spacing: -0.2px;
}

.results {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* 结果卡片 */
.result-card {
  position: relative;
  display: flex;
  flex-direction: column;
  border-radius: var(--radius);
  border: 1px solid var(--line-2);
  background: linear-gradient(160deg, rgba(26, 33, 48, 0.85), rgba(18, 24, 34, 0.85));
  overflow: hidden;
  animation: cardIn 0.32s var(--ease-out) both;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

@keyframes cardIn {
  from { opacity: 0; transform: translateY(10px) scale(0.99); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* 错开入场 */
.result-card:nth-child(1) { animation-delay: 0.02s; }
.result-card:nth-child(2) { animation-delay: 0.08s; }
.result-card:nth-child(3) { animation-delay: 0.14s; }
.result-card:nth-child(4) { animation-delay: 0.2s; }
.result-card:nth-child(5) { animation-delay: 0.26s; }

/* 左侧强调条 */
.result-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  opacity: 0.85;
}

.result-card:hover {
  border-color: var(--line-3);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.result-card .card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 13px 9px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.015);
}

.card-head > span {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-3);
  letter-spacing: 0.6px;
  font-family: var(--font-mono);
}

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

.result-body {
  padding: 14px 16px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
  outline: none;
  transition: background 0.2s;
}

.result-body.editable {
  background: rgba(79, 140, 255, 0.06);
  box-shadow: inset 0 0 0 1px rgba(79, 140, 255, 0.28);
  cursor: text;
}

.result-body.editable:focus {
  background: rgba(79, 140, 255, 0.1);
  box-shadow: inset 0 0 0 1px rgba(79, 140, 255, 0.5);
}

/* 错误卡片 */
.error-box {
  padding: 14px 16px;
  border-radius: var(--radius);
  border: 1px solid rgba(248, 113, 113, 0.3);
  background: rgba(248, 113, 113, 0.07);
  color: #fca5a5;
  font-size: 13.5px;
  line-height: 1.7;
  animation: cardIn 0.3s var(--ease-out) both;
}

.error-box .err-detail {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed rgba(248, 113, 113, 0.25);
  font-size: 12px;
  font-family: var(--font-mono);
  color: rgba(252, 165, 165, 0.72);
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 180px;
  overflow-y: auto;
}

/* 空状态 */
.empty-state {
  padding: 76px 24px;
  text-align: center;
  color: var(--text-3);
  animation: cardIn 0.4s var(--ease-out) both;
}

.empty-icon {
  font-size: 40px;
  margin-bottom: 14px;
  opacity: 0.85;
  filter: saturate(0.9);
  animation: floaty 4s ease-in-out infinite;
}

@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-7px); }
}

.empty-state p { margin: 0 0 6px; font-size: 14px; color: var(--text-2); }
.empty-sub { font-size: 12.5px !important; color: var(--text-3) !important; }

/* ---------- 生图结果 ---------- */

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 13px;
}

.image-card {
  position: relative;
  border-radius: var(--radius);
  border: 1px solid var(--line-2);
  background: var(--surface-2);
  overflow: hidden;
  animation: cardIn 0.35s var(--ease-out) both;
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease), border-color 0.22s var(--ease);
}

.image-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-3);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.45);
}

.image-card img {
  display: block;
  width: 100%;
  height: auto;
  cursor: zoom-in;
  transition: transform 0.35s var(--ease);
}

.image-card:hover img { transform: scale(1.035); }

.image-card .img-actions {
  display: flex;
  gap: 6px;
  padding: 8px;
  border-top: 1px solid var(--line);
  background: rgba(10, 14, 20, 0.5);
}
.image-card .img-actions .mini-btn { flex: 1; text-align: center; }

/* 提示词展示 */
.prompt-bar {
  position: relative;
  padding: 11px 13px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(10, 14, 20, 0.55);
}

.prompt-label {
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.9px;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 5px;
}

.prompt-text {
  font-size: 12px;
  line-height: 1.66;
  color: #a9b8cc;
  font-family: var(--font-mono);
  max-height: 104px;
  overflow-y: auto;
  word-break: break-word;
  padding-right: 74px;
}

.prompt-bar .mini-btn {
  position: absolute;
  top: 9px;
  right: 9px;
}

/* ---------- 灯箱 ---------- */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 34px;
  background: rgba(4, 6, 10, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  cursor: zoom-out;
  animation: fadeIn 0.22s var(--ease);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.lightbox img {
  max-width: 100%;
  max-height: 100%;
  border-radius: 12px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.7);
  animation: zoomIn 0.26s var(--spring);
}

@keyframes zoomIn {
  from { opacity: 0; transform: scale(0.92); }
  to   { opacity: 1; transform: scale(1); }
}

/* ---------- Toast ---------- */

.toast {
  position: fixed;
  left: 50%;
  bottom: 34px;
  z-index: 300;
  transform: translate(-50%, 18px);
  padding: 11px 20px;
  border-radius: 11px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text);
  background: rgba(26, 33, 48, 0.94);
  border: 1px solid var(--line-2);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  opacity: 0;
  pointer-events: none;
  max-width: min(560px, calc(100vw - 40px));
  transition: opacity 0.22s var(--ease), transform 0.28s var(--spring);
}

.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

.toast.ok  { border-color: rgba(52, 211, 153, 0.4); color: #a7f3d0; }
.toast.err { border-color: rgba(248, 113, 113, 0.45); color: #fca5a5; }

/* ---------- 响应式 ---------- */

@media (max-width: 760px) {
  .topbar {
    flex-wrap: wrap;
    padding: 12px 14px;
    gap: 10px;
  }
  .tabs { order: 3; width: 100%; }
  .tab { flex: 1; text-align: center; }
  .top-actions { margin-left: auto; }
  .panel { padding: 14px; }
  .empty-state { padding: 52px 16px; }
}

@media (max-width: 420px) {
  .sub { display: none; }
  .mode-grid { grid-template-columns: repeat(auto-fill, minmax(86px, 1fr)); }
}

/* ---------- 降低动效偏好 ---------- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  body::before { animation: none; }
  .logo::after { display: none; }
}