/* ==========================================================================
   AI 绘图 · 用户前端样式表
   重构版 2026-06-17 — 单一来源、移动优先、无 !important 覆盖堆叠
   分区：设计变量 / 基础 / 工具类 / 顶栏 / 布局 / 面板 / 创建区 /
        结果区 / 通用控件 / 信息面板 / 弹窗 / 灯箱 / 响应式
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 设计变量
   -------------------------------------------------------------------------- */
:root {
  /* 品牌色 */
  --primary: #409eff;
  --primary2: #1677ff;
  --accent: #8b5cf6;

  /* 中性色 */
  --bg: #f7f8ff;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;

  /* 语义色 */
  --ok: #059669;
  --danger: #dc2626;

  /* 圆角 */
  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 18px;
  --r-xl: 22px;

  /* 阴影 */
  --shadow: 0 18px 60px rgba(31, 41, 55, .10);
  --shadow-sm: 0 8px 24px rgba(15, 23, 42, .08);
  --shadow-pop: 0 16px 45px rgba(15, 23, 42, .16);

  /* 缓动 */
  --ease: .18s cubic-bezier(.4, 0, .2, 1);

  /* 布局宽度 */
  --shell-max: 1480px;
  --content-readable: 720px;
}

/* --------------------------------------------------------------------------
   2. 基础
   -------------------------------------------------------------------------- */
* { box-sizing: border-box; }

html, body, #app {
  width: 100%;
  min-height: 100%;
  margin: 0;
}

body {
  font-family: Inter, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #f8f8ff 0%, #eef5ff 45%, #f9fafb 100%);
  /* 防止移动端横向溢出 */
  overflow-x: hidden;
}

button, input, textarea, select { font: inherit; }

a { color: inherit; }

/* 全局聚焦可见性（键盘可达） */
:focus-visible {
  outline: 2px solid rgba(22, 119, 255, .55);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   3. 工具类
   -------------------------------------------------------------------------- */
.hidden { display: none !important; }
.page-hidden { display: none !important; }

/* --------------------------------------------------------------------------
   4. 顶栏
   -------------------------------------------------------------------------- */
.header {
  position: sticky;
  top: 0;
  z-index: 10;
  width: 100%;
  background: rgba(248, 248, 255, .8);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(229, 231, 235, .75);
  /* 刘海屏安全区 */
  padding-top: env(safe-area-inset-top, 0);
}

.header-container {
  position: relative;
  max-width: 1320px;
  min-height: 60px;
  margin: 0 auto;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex: none;
}

.brand-logo {
  width: 38px;
  height: 38px;
  border-radius: var(--r-md);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
  box-shadow: 0 10px 25px rgba(64, 158, 255, .28);
}

.brand-text {
  font-weight: 700;
  font-size: 18px;
}

/* 居中大标题（hero 隐藏，由它承担可见标题） */
.header-title {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0 16px;
  text-align: center;
  font-size: clamp(20px, 3vw, 40px);
  line-height: 1.05;
  font-weight: 900;
  letter-spacing: -.045em;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-overflow: ellipsis;
  pointer-events: none;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: nowrap;
  flex-shrink: 0;
  gap: 4px;
  flex: none;
  margin-left: auto;
}

.nav-btn, .link-btn {
  border: 0;
  background: transparent;
  color: #4b5563;
  cursor: pointer;
  padding: 5px 9px;
  font-size: 13px;
  white-space: nowrap;
  border-radius: var(--r-sm);
  transition: background var(--ease), color var(--ease);
}

.nav-btn:hover, .link-btn:hover {
  background: #eef2ff;
  color: #111827;
}

/* 顶栏当前用户信息 */
.top-user-info {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-right: 4px;
  font-size: 13px;
  color: #4b5563;
}
.top-user-info span {
  padding: 4px 9px;
  border-radius: 999px;
  background: #f3f7ff;
  color: var(--primary2);
  font-weight: 800;
}
.top-user-info strong {
  font-weight: 800;
  color: #111827;
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.top-user-info button {
  border: 0;
  background: #eaf3ff;
  color: var(--primary2);
  border-radius: 999px;
  padding: 5px 9px;
  font-weight: 800;
  font-size: 13px;
  white-space: nowrap;
  cursor: pointer;
}

/* 隐藏的装饰元素（保留选择器，统一收口） */
.hero,
.eyebrow,
.header-eyebrow { display: none !important; }

.subtitle {
  max-width: 680px;
  margin: 14px auto 0;
  color: var(--muted);
  line-height: 1.8;
}

/* --------------------------------------------------------------------------
   5. 布局：外壳 + 侧边导航
   -------------------------------------------------------------------------- */
.app-shell {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 24px 16px;
  display: grid;
  grid-template-columns: 176px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.main-content {
  width: 100%;
  min-width: 0;
}

.container {
  max-width: 1320px;
  margin: 0 auto;
}

.side-nav {
  position: sticky;
  top: 84px;
  align-self: start;
  z-index: 5;
  background: rgba(255, 255, 255, .86);
  border: 1px solid rgba(229, 231, 235, .9);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow);
  padding: 12px;
}

.side-title {
  font-size: 13px;
  font-weight: 800;
  color: #111827;
  padding: 4px 8px 10px;
}

.side-item {
  width: 100%;
  height: 42px;
  border: 0;
  border-radius: var(--r-md);
  background: transparent;
  color: #4b5563;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 10px;
  margin: 3px 0;
  cursor: pointer;
  font-weight: 700;
  text-align: left;
  transition: background var(--ease), color var(--ease);
}
.side-item:hover { background: #f3f7ff; color: var(--primary2); }
.side-item.active { background: #eaf3ff; color: var(--primary2); }
.side-item.disabled { opacity: .45; cursor: not-allowed; }

.side-icon {
  width: 22px;
  height: 22px;
  border-radius: 8px;
  background: #eef2ff;
  color: var(--primary2);
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 800;
  flex: none;
}
.side-item.active .side-icon { background: var(--primary2); color: #fff; }

/* 旧的“记录”入口由功能页接管，隐藏侧栏项 */
.side-item[data-page="records"] { display: none !important; }

/* --------------------------------------------------------------------------
   6. 面板与工作区
   -------------------------------------------------------------------------- */
.panel {
  background: rgba(255, 255, 255, .92);
  border: 1px solid rgba(229, 231, 235, .9);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow);
  min-width: 0;
}

.panel-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}
.panel-title h2 { font-size: 20px; margin: 0; }

.workspace {
  display: grid;
  grid-template-columns: minmax(320px, 460px) 1fr;
  gap: 18px;
  align-items: start;
}

.create-panel {
  padding: 20px;
  position: sticky;
  top: 84px;
}

.output-panel {
  padding: 18px;
  min-height: 520px;
}

/* 单卡片功能页（侧栏切换时 JS 添加 single-panel） */
.workspace.single-panel { grid-template-columns: minmax(0, 1fr); }
.workspace.single-panel .create-panel {
  position: static;
  width: 100%;
  max-width: none;
  margin: 0;
}
.workspace.single-panel .output-panel { min-height: 560px; }

/* --------------------------------------------------------------------------
   7. 创建区
   -------------------------------------------------------------------------- */
.pill {
  font-size: 12px;
  border-radius: 999px;
  padding: 5px 10px;
  background: #ecfdf5;
  color: #047857;
}
.pill.muted { background: #f3f4f6; color: #6b7280; }

/* 模式切换 */
.mode-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
}
.mode-tab {
  border: 0;
  background: #f3f4f6;
  color: #4b5563;
  border-radius: var(--r-md);
  padding: 8px 14px;
  cursor: pointer;
  font-weight: 700;
  transition: background var(--ease), color var(--ease);
}
.mode-tab.active { background: #eaf3ff; color: var(--primary2); }

/* 参考图上传 */
.upload-box {
  border: 1px dashed #bfdbfe;
  background: #f8fbff;
  border-radius: var(--r-lg);
  padding: 4px 8px;
  margin-bottom: 8px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  width: fit-content;
  max-width: 100%;
}
.upload-btn {
  height: 26px;
  border: 0;
  border-radius: var(--r-md);
  background: var(--primary2);
  color: #fff;
  padding: 0 9px;
  cursor: pointer;
  font-weight: 600;
  font-size: 12px;
  white-space: nowrap;
}
.reference-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
  flex-basis: 100%;
}
.reference-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 100%;
  border-radius: 999px;
  background: #eef2ff;
  color: #374151;
  padding: 6px 8px 6px 10px;
  font-size: 12px;
}
.reference-item {
  position: relative;
  display: inline-block;
  line-height: 0;
}
.reference-preview {
  width: 96px;
  height: 96px;
  object-fit: cover;
  border-radius: 12px;
  display: block;
  border: 1px solid var(--line);
  background: #fff;
}
.reference-remove {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 20px;
  height: 20px;
  border: 0;
  border-radius: 999px;
  background: rgba(17, 24, 39, .72);
  color: #fff;
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  display: grid;
  place-items: center;
}
.reference-remove:hover {
  background: rgba(220, 38, 38, .92);
}
.reference-chip button {
  border: 0;
  background: transparent;
  color: #6b7280;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
}

/* 提示词 */
.field-label,
.control span {
  display: block;
  font-size: 13px;
  color: #4b5563;
  margin-bottom: 8px;
  font-weight: 600;
}

.prompt {
  width: 100%;
  min-height: 170px;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 14px 15px;
  line-height: 1.7;
  background: #fbfdff;
  outline: none;
  transition: border-color var(--ease), box-shadow var(--ease);
}
.prompt:focus,
input:focus,
select:focus {
  border-color: #93c5fd;
  box-shadow: 0 0 0 4px rgba(59, 130, 246, .10);
}

/* 参数控件 */
.controls {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  margin-top: 14px;
}
.control { min-width: 0; }
.control select,
.dialog input {
  width: 100%;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 0 10px;
  outline: none;
}

/* 案例下拉（替代旧 preset 列表） */
.case-control {
  position: relative;
  min-width: 82px;
}
.case-control > span { visibility: hidden; }
.case-control .quick-btn {
  width: 100%;
  height: 42px;
  border: 0;
  border-radius: var(--r-sm);
  background: #f3f7ff;
  color: var(--primary2);
  padding: 0 12px;
  font-weight: 700;
  cursor: pointer;
}
.case-control .quick-btn:hover { background: #eaf3ff; }

.preset-popover {
  position: absolute;
  left: 0;
  bottom: 50px;
  z-index: 20;
  width: min(420px, 94vw);
  max-height: 430px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  box-shadow: 0 12px 32px rgba(15, 23, 42, .16);
  overflow: hidden;
}
.preset-popover::after {
  content: "";
  position: absolute;
  left: 30px;
  bottom: -8px;
  width: 14px;
  height: 14px;
  background: #fff;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transform: rotate(45deg);
}
.preset-list {
  padding: 0;
  max-height: 410px;
  overflow: auto;
}

.case-dropdown-panel { background: #fff; }
.case-tabs {
  display: flex;
  height: 38px;
  padding: 0 12px;
  border-bottom: 1px solid #ebeef5;
  background: #fff;
}
.case-tab {
  display: flex;
  align-items: center;
  padding: 0 12px;
  border-bottom: 2px solid transparent;
  color: #606266;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
}
.case-tab.active {
  color: var(--primary2);
  border-bottom-color: var(--primary2);
  font-weight: 600;
  background: transparent;
}
.case-item {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 9px 12px;
  cursor: pointer;
  text-align: left;
}
.case-item:hover { background: #f5f7fa; }

/* 案例文案：作用域内提升特异性，盖过 .control span */
.case-control .case-title {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: #111827;
  line-height: 1.35;
  margin: 0;
}
.case-control .case-desc {
  display: block;
  font-size: 12px;
  font-weight: 400;
  color: #8b95a1;
  line-height: 1.45;
  margin: 0;
}
.case-control .case-image-guide {
  display: flex;
  gap: 5px;
  margin: 2px 0 0;
  font-size: 12px;
  font-weight: 400;
  color: var(--primary2);
  line-height: 1.45;
}
.case-control .case-image-guide::before {
  content: "\1F4F7";
  flex: none;
  font-size: 12px;
  line-height: 1.3;
  color: var(--primary2);
}

/* 旧版预设结构：保留选择器但收起，避免重复展示 */
.quick-bar,
.preset-box,
.preset-item,
.preset-popover .preset-tabs { display: none !important; }

/* 生成按钮 + 费用提示 */
.generate-row {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
}
.generate-row .primary-btn { margin-top: 0; }
.cost-hint {
  font-size: 13px;
  font-weight: 800;
  color: var(--primary2);
  background: #eaf3ff;
  border-radius: 999px;
  padding: 8px 12px;
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   8. 结果区
   -------------------------------------------------------------------------- */
.output-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: calc(100vh - 190px);
  overflow: auto;
  padding-right: 4px;
}
.output-list.empty {
  min-height: 440px;
  display: grid;
  place-items: center;
}

.empty-state { text-align: center; color: #9ca3af; }
.empty-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--r-xl);
  background: #f3f7ff;
  display: grid;
  place-items: center;
  margin: 0 auto 12px;
  color: #60a5fa;
  font-size: 28px;
}

.output-item {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 12px;
  background: #fff;
}
.output-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: #6b7280;
  font-size: 12px;
  margin-bottom: 10px;
}
.output-prompt {
  font-size: 14px;
  line-height: 1.6;
  margin: 0 0 10px;
  color: #374151;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
}
.image-card {
  position: relative;
  min-height: 150px;
  border: 1px dashed #d1d5db;
  border-radius: var(--r-md);
  overflow: hidden;
  background: #f9fafb;
  display: grid;
  place-items: center;
}
.image-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  cursor: zoom-in;
}
.download {
  position: absolute;
  right: 8px;
  bottom: 8px;
  background: rgba(17, 24, 39, .78);
  color: #fff;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12px;
  text-decoration: none;
}

.video-card {
  position: relative;
  grid-column: 1 / -1;
  min-height: 160px;
  border-radius: var(--r-md);
  overflow: hidden;
  display: grid;
  place-items: center;
  background: #f9fafb;
}
.video-card video {
  width: 100%;
  max-height: 70vh;
  display: block;
  background: #000;
  border-radius: var(--r-md);
}

.spinner {
  width: 28px;
  height: 28px;
  border: 3px solid #dbeafe;
  border-top-color: var(--primary);
  border-radius: 999px;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: #6b7280;
  font-size: 13px;
  padding: 18px;
  text-align: center;
}

.error-box {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
  padding: 12px;
  color: #991b1b;
  font-size: 13px;
  text-align: left;
  background: #fff7f7;
}
.error-box strong { display: block; color: var(--danger); font-size: 14px; }
.error-box small { display: block; color: #7f1d1d; line-height: 1.55; }
.error-box details { margin-top: 4px; color: #6b7280; }
.error-box summary { cursor: pointer; color: #991b1b; }
.error-box pre {
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 130px;
  overflow: auto;
  margin: 6px 0 0;
  padding: 8px;
  border-radius: 8px;
  background: #f3f4f6;
  color: #374151;
  font-size: 11px;
}

/* --------------------------------------------------------------------------
   9. 通用控件：按钮 / 消息
   -------------------------------------------------------------------------- */
.primary-btn {
  width: 100%;
  height: 48px;
  margin-top: 16px;
  border: 0;
  border-radius: var(--r-md);
  background: linear-gradient(135deg, var(--primary), var(--primary2));
  color: #fff;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 12px 28px rgba(64, 158, 255, .25);
  transition: transform var(--ease), box-shadow var(--ease), opacity var(--ease);
}
.primary-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 34px rgba(64, 158, 255, .32);
}
.primary-btn:disabled {
  opacity: .6;
  cursor: not-allowed;
  transform: none;
}
.primary-btn.small {
  width: auto;
  height: 40px;
  margin: 0;
  padding: 0 18px;
}
.primary-btn.danger {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  box-shadow: 0 12px 28px rgba(239, 68, 68, .25);
}

.secondary-btn {
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 0 16px;
  cursor: pointer;
  transition: border-color var(--ease), background var(--ease);
}
.secondary-btn:hover { border-color: #cbd5e1; background: #f8fafc; }

.message {
  min-height: 20px;
  color: var(--muted);
  font-size: 13px;
  margin: 12px 0 0;
}
.message.error { color: var(--danger); }
.message.ok { color: var(--ok); }

/* --------------------------------------------------------------------------
   10. 信息面板：充值 / 用户中心 / API / 记录
   -------------------------------------------------------------------------- */
.info-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 18px;
}
.info-panel { min-height: 170px; padding: 20px; }

.muted-text {
  margin: 0 0 12px;
  color: #6b7280;
  font-size: 13px;
  line-height: 1.6;
}

/* 单卡片功能页：满宽卡片，内容居中可读 */
.info-panels.single-panel {
  grid-template-columns: minmax(0, 1fr);
  width: 100%;
  margin-top: 0;
}
.info-panels.single-panel .info-panel {
  max-width: none;
  width: 100%;
  margin: 0;
  padding: 24px;
  min-height: 520px;
}
.info-panels.single-panel .info-panel > *,
.info-panels.single-panel .info-panel .panel-title,
.info-panels.single-panel .redeem-row,
.info-panels.single-panel .user-info,
.info-panels.single-panel .recharge-record-card {
  max-width: var(--content-readable);
  margin-left: auto;
  margin-right: auto;
}
.info-panels.single-panel .primary-btn.small {
  width: auto;
  flex: none;
}

/* 兑换 */
.redeem-row { display: flex; gap: 10px; }
.text-input {
  width: 100%;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0 12px;
  outline: none;
  background: #fbfdff;
  transition: border-color var(--ease), box-shadow var(--ease);
}
.text-input:focus {
  border-color: #93c5fd;
  box-shadow: 0 0 0 4px rgba(64, 158, 255, .12);
}

/* 立即购买 */
.purchase-row { margin-top: 12px; }
.purchase-btn {
  width: 100%;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid rgba(22, 119, 255, .18);
  border-radius: var(--r-md);
  background: linear-gradient(135deg, #eff6ff 0%, #eef2ff 52%, #f5f3ff 100%);
  color: var(--primary2);
  text-decoration: none;
  font-weight: 900;
  box-shadow: 0 10px 28px rgba(64, 158, 255, .12);
  transition: transform var(--ease), box-shadow var(--ease),
              border-color var(--ease), background var(--ease);
}
.purchase-btn::before { content: "💳"; font-size: 15px; }
.purchase-btn::after {
  content: "›";
  margin-left: 2px;
  font-size: 22px;
  line-height: 1;
  font-weight: 900;
}
.purchase-btn:hover {
  transform: translateY(-1px);
  border-color: rgba(22, 119, 255, .32);
  background: linear-gradient(135deg, #e0f2fe 0%, #eaf3ff 48%, #ede9fe 100%);
  box-shadow: 0 16px 34px rgba(64, 158, 255, .18);
}

/* 用户中心信息块 */
.user-info { color: #4b5563; font-size: 13px; }
.user-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.user-stat {
  padding: 10px 12px;
  border: 1px solid #eef2ff;
  border-radius: 12px;
  background: #fbfdff;
}
.user-stat span {
  display: block;
  color: #8b95a1;
  font-size: 12px;
  margin-bottom: 5px;
}
.user-stat strong { display: block; color: #111827; font-size: 15px; }

/* API 调用卡片 */
.api-key-card {
  margin-top: 14px;
  padding: 14px;
  border: 1px solid #eef2ff;
  border-radius: var(--r-md);
  background: #fbfdff;
}
.api-key-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.api-key-row span,
.call-guide span {
  display: block;
  color: #8b95a1;
  font-size: 12px;
  margin-bottom: 6px;
}
.api-key-row code {
  font-family: Consolas, monospace;
  color: #111827;
  font-size: 13px;
  word-break: break-all;
}
.api-key-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}
.call-guide { margin-top: 12px; }
.call-guide pre {
  margin: 0;
  padding: 12px;
  border-radius: 12px;
  background: #0f172a;
  color: #dbeafe;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 12px;
  line-height: 1.5;
}

/* 充值记录卡 */
.recharge-record-card {
  margin-top: 14px;
  border: 1px solid #eef2ff;
  border-radius: var(--r-md);
  background: #fbfdff;
  padding: 14px;
}
.recharge-record-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
}
.recharge-record-head strong { font-size: 15px; color: #111827; }
.recharge-record-card .muted-text { margin-bottom: 10px; }
.recharge-history-item { background: #fff; }

/* 使用记录列表 */
.history-list {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}
.history-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 12px;
  align-items: center;
  padding: 12px 14px;
  border: 1px solid #edf2f7;
  border-radius: var(--r-md);
  background: #fff;
}
.history-item strong { display: block; font-size: 14px; color: #111827; }
.history-item p { margin: 4px 0; color: #6b7280; font-size: 13px; line-height: 1.5; }
.history-item span { color: #9ca3af; font-size: 12px; }
.history-change {
  font-weight: 900;
  font-size: 16px;
  font-family: Consolas, monospace;
}
.history-change.plus { color: var(--ok); }
.history-change.minus { color: var(--danger); }
.history-balance { color: #64748b; font-size: 12px; white-space: nowrap; }

.history-pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 4px;
  padding: 10px 2px;
  color: #64748b;
  font-size: 12px;
}
.history-pager > div { display: flex; gap: 8px; }
.history-pager button {
  height: 32px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: #fff;
  color: #374151;
  padding: 0 12px;
  font-weight: 800;
  cursor: pointer;
}
.history-pager button:hover:not(:disabled) {
  background: #f3f7ff;
  color: var(--primary2);
  border-color: #dbeafe;
}
.history-pager button:disabled { opacity: .45; cursor: not-allowed; }

/* --------------------------------------------------------------------------
   11. 弹窗：登录注册 / 居中提示 / Toast
   -------------------------------------------------------------------------- */
.dialog {
  border: 0;
  border-radius: var(--r-xl);
  padding: 0;
  box-shadow: var(--shadow);
  width: min(92vw, 420px);
}
.dialog[open] { z-index: 200; }
.dialog::backdrop {
  background: rgba(15, 23, 42, .35);
  backdrop-filter: blur(3px);
}
.dialog-card { padding: 22px; }
.dialog-card h3 { margin: 0 0 8px; font-size: 22px; }
.dialog-card p { margin: 0 0 14px; color: #6b7280; line-height: 1.6; }
.dialog-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 14px;
}

/* 登录/注册标签页 */
.auth-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  padding: 4px;
  border-radius: var(--r-md);
  background: #f3f7ff;
}
.auth-tab {
  flex: 1;
  height: 38px;
  border: 0;
  border-radius: 11px;
  background: transparent;
  color: #64748b;
  font-weight: 800;
  cursor: pointer;
}
.auth-tab.active {
  background: #fff;
  color: var(--primary2);
  box-shadow: 0 8px 18px rgba(15, 23, 42, .06);
}
.auth-pane input {
  width: 100%;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 0 12px;
  outline: none;
}
.auth-pane input + input { margin-top: 10px; }

.captcha-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  margin-top: 10px;
}
.captcha-question {
  margin: 8px 0 0;
  color: var(--primary2);
  font-size: 13px;
  font-weight: 700;
}
.register-result {
  margin: 10px 0 0;
  padding: 10px 12px;
  border-radius: 12px;
  background: #ecfdf5;
  color: #065f46;
  font-size: 13px;
  word-break: break-all;
}
.register-result.error { background: #fef2f2; color: #991b1b; }

.auth-inline-msg {
  margin: 0 auto 0 0;
  min-height: 20px;
  max-width: 230px;
  color: #6b7280;
  font-size: 13px;
  line-height: 1.45;
  text-align: left;
  word-break: break-word;
}
.auth-inline-msg.error { color: var(--danger); }
.auth-inline-msg.ok { color: var(--ok); }

/* 居中确认弹窗 */
.center-modal {
  position: fixed;
  inset: 0;
  z-index: 280;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(15, 23, 42, .42);
  backdrop-filter: blur(4px);
}
.center-modal-card {
  width: min(92vw, 420px);
  padding: 22px;
  border: 1px solid rgba(229, 231, 235, .95);
  border-radius: var(--r-xl);
  background: #fff;
  box-shadow: 0 24px 80px rgba(15, 23, 42, .25);
}
.center-modal-card h3 { margin: 0 0 8px; font-size: 21px; color: #111827; }
.center-modal-card p {
  margin: 0;
  color: #6b7280;
  line-height: 1.7;
  word-break: break-word;
}
.center-modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 18px;
}
.center-modal-actions .primary-btn.danger {
  background: linear-gradient(135deg, #ef4444, #dc2626);
}

/* 居中 Toast */
.toast-box {
  position: fixed;
  inset: 0;
  z-index: 260;
  display: grid;
  place-items: center;
  gap: 10px;
  padding: 20px;
  pointer-events: none;
}
.toast-item {
  min-width: 260px;
  max-width: min(92vw, 520px);
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: #fff;
  color: #111827;
  box-shadow: 0 22px 70px rgba(15, 23, 42, .22);
  opacity: 0;
  transform: scale(.96) translateY(8px);
  transition: opacity .22s, transform .22s;
  font-size: 14px;
  font-weight: 800;
  text-align: center;
}
.toast-item.show { opacity: 1; transform: scale(1) translateY(0); }
.toast-item.error { border-color: #fecaca; color: var(--danger); background: #fff7f7; }
.toast-item.ok { border-color: #bbf7d0; color: var(--ok); background: #f0fdf4; }

/* --------------------------------------------------------------------------
   12. 灯箱（图片预览）
   -------------------------------------------------------------------------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(0, 0, 0, .86);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px 24px 96px;
  overflow: hidden;
  user-select: none;
}
.lightbox-stage {
  position: relative;
  max-width: 96vw;
  max-height: calc(100vh - 132px);
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox img {
  max-width: 96vw;
  max-height: calc(100vh - 132px);
  border-radius: var(--r-md);
  box-shadow: 0 24px 80px rgba(0, 0, 0, .45);
  transform-origin: center center;
  transition: transform .12s ease;
  cursor: grab;
}
.lightbox img:active { cursor: grabbing; }

.close-btn {
  position: fixed;
  right: 18px;
  top: calc(14px + env(safe-area-inset-top, 0));
  z-index: 3;
  border: 0;
  background: transparent;
  color: #fff;
  font-size: 42px;
  line-height: 1;
  cursor: pointer;
  padding: 0;
}

/* 工具栏 */
.lightbox-toolbar {
  position: fixed;
  left: 50%;
  bottom: calc(24px + env(safe-area-inset-bottom, 0));
  transform: translateX(-50%);
  height: 54px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 22px;
  border-radius: 999px;
  background: rgba(92, 92, 96, .82);
  backdrop-filter: blur(14px);
  box-shadow: 0 12px 36px rgba(0, 0, 0, .28);
}
.tool-btn {
  width: 30px;
  height: 30px;
  border: 0;
  background: transparent;
  color: #fff;
  display: grid;
  place-items: center;
  cursor: pointer;
  border-radius: 999px;
  padding: 0;
  text-decoration: none;
  opacity: .92;
}
.tool-btn:hover { background: rgba(255, 255, 255, .16); opacity: 1; }
.tool-btn svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.tool-btn[disabled] { opacity: .35; cursor: not-allowed; }
.tool-btn.active { background: #fff; color: #111827; opacity: 1; }

.point-edit-layer {
  position: absolute;
  z-index: 2;
  cursor: crosshair;
}
.point-edit-marker {
  position: absolute;
  transform: translate(-50%, -50%);
  width: 28px;
  height: 28px;
  border: 2px solid #fff;
  border-radius: 50%;
  background: #05070b;
  color: #fff;
  box-shadow: 0 4px 16px rgba(0, 0, 0, .5);
  font-size: 12px;
  font-weight: 800;
  display: grid;
  place-items: center;
  cursor: pointer;
}
.lightbox.point-editing img {
  max-height: calc(100vh - 340px);
  cursor: crosshair;
}
.lightbox.point-editing .nav-arrow { display: none !important; }
.point-edit-panel {
  position: fixed;
  z-index: 4;
  left: 50%;
  bottom: calc(90px + env(safe-area-inset-bottom, 0));
  transform: translateX(-50%);
  width: min(760px, calc(100vw - 24px));
  padding: 14px;
  border-radius: var(--r-md);
  background: #fff;
  color: #111827;
  box-shadow: 0 24px 70px rgba(0, 0, 0, .42);
  user-select: text;
}
.point-edit-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 10px; font-size: 14px; }
.point-edit-heading span { color: #64748b; font-size: 12px; }
.point-edit-list { display: grid; gap: 8px; max-height: 136px; overflow-y: auto; }
.point-edit-empty { min-height: 40px; border: 1px dashed #cbd5e1; border-radius: 7px; color: #94a3b8; font-size: 12px; display: grid; place-items: center; }
.point-edit-row { display: grid; grid-template-columns: 26px auto minmax(0, 1fr) 32px; align-items: center; gap: 8px; }
.point-edit-index { width: 24px; height: 24px; border-radius: 50%; background: #0f172a; color: #fff; font-size: 11px; font-weight: 800; display: grid; place-items: center; }
.point-edit-coord { color: #94a3b8; font: 10px/1.2 ui-monospace, SFMono-Regular, Consolas, monospace; }
.point-edit-row input,
.point-edit-compose input { min-width: 0; height: 38px; border: 1px solid #dbe2ea; border-radius: 7px; padding: 0 11px; color: #111827; background: #fff; outline: none; font: inherit; }
.point-edit-row input:focus,
.point-edit-compose input:focus { border-color: #64748b; }
.point-edit-remove { width: 32px; height: 32px; border: 0; border-radius: 7px; background: transparent; color: #94a3b8; font-size: 20px; cursor: pointer; }
.point-edit-remove:hover { color: #e11d48; background: #fff1f2; }
.point-edit-compose { display: flex; gap: 8px; margin-top: 9px; }
.point-edit-compose input { flex: 1; }
.point-edit-compose button { min-width: 76px; height: 38px; border: 0; border-radius: 7px; background: #0f172a; color: #fff; font-weight: 700; cursor: pointer; }
.point-edit-compose button:hover { background: #1e293b; }
.point-edit-compose button:disabled { opacity: .5; cursor: wait; }

/* 上一张 / 下一张 */
.nav-arrow {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 48px;
  height: 72px;
  border: 0;
  border-radius: var(--r-lg);
  background: rgba(92, 92, 96, .58);
  color: #fff;
  font-size: 56px;
  line-height: 64px;
  display: grid;
  place-items: center;
  cursor: pointer;
  backdrop-filter: blur(12px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, .22);
  transition: background .15s ease, transform .15s ease, opacity .15s ease;
}
.nav-arrow:hover {
  background: rgba(92, 92, 96, .82);
  transform: translateY(-50%) scale(1.04);
}
.nav-arrow-left { left: 24px; }
.nav-arrow-right { right: 24px; }
.nav-arrow.hidden { display: none !important; }

@media (max-width: 640px) {
  .point-edit-panel { bottom: calc(78px + env(safe-area-inset-bottom, 0)); padding: 11px; }
  .point-edit-heading span, .point-edit-coord { display: none; }
  .point-edit-row { grid-template-columns: 26px minmax(0, 1fr) 32px; }
  .lightbox.point-editing img { max-height: calc(100vh - 330px); }
  .point-edit-list { max-height: 112px; }
}

/* --------------------------------------------------------------------------
   13. 页脚
   -------------------------------------------------------------------------- */
.footer {
  text-align: center;
  color: #9ca3af;
  font-size: 12px;
  padding: 10px 0 calc(18px + env(safe-area-inset-bottom, 0));
}

/* ==========================================================================
   14. 响应式
   ========================================================================== */

/* —— 平板及以下：侧栏转横向、品牌文字收起 —— */
@media (max-width: 980px) {
  .app-shell {
    display: block;
    padding: 0 0 24px;
  }
  .main-content { padding: 0 12px; }

  .side-nav {
    position: sticky;
    top: calc(60px + env(safe-area-inset-top, 0));
    display: flex;
    gap: 8px;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    border-radius: 0;
    border-left: 0;
    border-right: 0;
    padding: 8px 12px;
    margin: 0 0 12px;
    box-shadow: var(--shadow-sm);
  }
  .side-nav::-webkit-scrollbar { display: none; }
  .side-title { display: none; }
  .side-item {
    width: auto;
    min-width: max-content;
    margin: 0;
    height: 36px;
    padding: 0 12px;
  }
  .side-icon { display: none; }

  .header-title { font-size: clamp(18px, 4vw, 26px); width: 50vw; }
  .brand-text { display: none; }
}

/* —— 双栏并排坍塌为单栏 —— */
@media (max-width: 860px) {
  .workspace { grid-template-columns: 1fr; }
  .create-panel { position: static; padding: 16px; }
  .output-list { max-height: none; }

  /* 参数控件改双列，收紧竖向间距；数量独占底部整行 */
  .controls { grid-template-columns: 1fr 1fr; gap: 10px 12px; margin-top: 12px; }
  /* 仅手机端交换“案例 ↔ 清晰度”位置（桌面 order 默认值不变，保持原顺序） */
  .controls > .case-control { order: 1; }
  .controls > .control:nth-child(3) { order: 2; }
  .controls > .control:last-child { grid-column: 1 / -1; order: 3; }
  .control span, .field-label { margin-bottom: 6px; }
  .generate-row { margin-top: 12px; }

  .info-panels { grid-template-columns: 1fr; }
  .redeem-row { flex-direction: column; }
  .redeem-row .primary-btn { width: 100%; }

  .info-panels.single-panel .info-panel { padding: 18px; min-height: 360px; }
  .info-panels.single-panel .info-panel > *,
  .info-panels.single-panel .info-panel .panel-title,
  .info-panels.single-panel .redeem-row,
  .info-panels.single-panel .user-info,
  .info-panels.single-panel .recharge-record-card { max-width: 100%; }
  .info-panels.single-panel .primary-btn.small { width: 100%; }

  .top-user-info { display: none; }
}

/* —— 手机：标题回归行内、布局让位触控 —— */
@media (max-width: 720px) {
  .header-container { gap: 8px; }
  .header-title {
    position: static;
    transform: none;
    order: 2;
    flex: 1;
    width: auto;
    max-width: 100%;
    font-size: 18px;
    text-align: center;
  }
  .brand { order: 1; }
  .nav { order: 3; }
  .side-nav { top: calc(60px + env(safe-area-inset-top, 0)); }
}

/* —— 小屏：网格与表单单列 —— */
@media (max-width: 640px) {
  .image-grid { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); }

  /* 灯箱触控优化 */
  .lightbox { padding: 18px 10px 86px; }
  .lightbox-stage { max-height: calc(100vh - 116px); }
  .lightbox img { max-width: 98vw; max-height: calc(100vh - 116px); }
  .lightbox-toolbar {
    bottom: calc(18px + env(safe-area-inset-bottom, 0));
    gap: 10px;
    height: 50px;
    padding: 0 16px;
  }
  .tool-btn { width: 34px; height: 34px; }
  .nav-arrow {
    width: 40px;
    height: 60px;
    border-radius: var(--r-md);
    font-size: 44px;
    line-height: 56px;
  }
  .nav-arrow-left { left: 8px; }
  .nav-arrow-right { right: 8px; }
}

/* —— 超小屏：堆叠按钮组 —— */
@media (max-width: 620px) {
  .api-key-row { flex-direction: column; align-items: stretch; }
  .api-key-actions { justify-content: stretch; }
  .api-key-actions .secondary-btn,
  .api-key-row .secondary-btn { width: 100%; }

  .center-modal-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .center-modal-actions .secondary-btn,
  .center-modal-actions .primary-btn.small { width: 100%; padding: 0; }

  .history-item { grid-template-columns: 1fr; }
  .history-balance { text-align: left; }

  .history-pager { align-items: flex-start; flex-direction: column; }
  .history-pager > div { width: 100%; }
  .history-pager button { flex: 1; }
}

/* —— 极窄屏：费用提示与验证码单列 —— */
@media (max-width: 520px) {
  .generate-row { grid-template-columns: 1fr; }
  .cost-hint { text-align: center; }
  .captcha-row { grid-template-columns: 1fr; }
  .captcha-row .secondary-btn { width: 100%; }
}

/* ===== 生成结果：选择 / 批量下载 ===== */
.output-actions { display: inline-flex; align-items: center; gap: 12px; }
.output-list.select-mode .image-card,
.output-list.select-mode .image-card img { cursor: pointer; }
.output-list.select-mode .image-card .download { display: none; }
.image-card.selected { outline: 3px solid #2563eb; outline-offset: -3px; }
.image-card.selected::after {
  content: ""; position: absolute; inset: 0;
  background: rgba(37, 99, 235, .14); pointer-events: none;
}
.select-check {
  position: absolute; top: 8px; right: 8px; z-index: 2;
  width: 24px; height: 24px; border-radius: 999px;
  display: flex; align-items: center; justify-content: center;
  border: 2px solid #fff; background: rgba(17, 24, 39, .35);
  color: #fff; font-size: 15px; font-weight: 700; line-height: 1;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .25);
}
.select-check.on { background: #2563eb; border-color: #2563eb; }
#downloadSelectedBtn:disabled { opacity: .5; cursor: not-allowed; }

/* ---- API 文档（移植自 /new/docs，改成门户的浅色风格）------------------- */
/* 代码块沿用 .call-guide pre 的深色底，其余一律走门户的浅色卡片语言，
   免得一页里两套观感。 */
.api-docs { margin-top: 16px; display: grid; gap: 22px; }
.doc-sec > h3 {
  margin: 0 0 10px;
  font-size: 14px;
  color: #111827;
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}
.doc-sec > h3 em {
  font-style: normal;
  font-weight: 400;
  font-size: 12px;
  color: #8b95a1;
  font-family: Consolas, monospace;
}
.doc-note { margin: 8px 0 0; font-size: 12px; }

/* 端点清单 */
.doc-endpoints { list-style: none; margin: 0; padding: 0; display: grid; gap: 7px; }
.doc-endpoints li { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 13px; }
.doc-endpoints code { font-family: Consolas, monospace; color: #111827; }
.doc-endpoints em { font-style: normal; color: #8b95a1; font-size: 12px; }
.doc-verb {
  flex: none;
  min-width: 42px;
  text-align: center;
  padding: 2px 7px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.doc-verb.is-get { background: #ecfdf5; color: #047857; }
.doc-verb.is-post { background: #eff6ff; color: #1d4ed8; }

/* 表格：窄屏时自己横向滚动，不把整页撑宽 */
.doc-table-wrap {
  border: 1px solid #eef2ff;
  border-radius: var(--r-md);
  background: #fbfdff;
  overflow-x: auto;
}
.doc-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.doc-table th {
  text-align: left;
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.05em;
  color: #8b95a1;
  padding: 9px 12px;
  border-bottom: 1px solid #eef2ff;
  white-space: nowrap;
}
.doc-table td { padding: 9px 12px; border-bottom: 1px solid #f3f6fc; color: #374151; vertical-align: top; }
.doc-table tr:last-child td { border-bottom: 0; }
.doc-table code { font-family: Consolas, monospace; color: #111827; }
.doc-table .doc-dim { color: #8b95a1; font-family: Consolas, monospace; font-size: 12px; }
.doc-table .doc-desc { color: #6b7280; font-size: 12px; line-height: 1.65; min-width: 220px; }
.doc-table .doc-num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.doc-table .doc-empty { text-align: center; color: #9aa3af; padding: 26px 12px; }
.doc-table-compact td, .doc-table-compact th { padding: 6px 12px; }

/* 示例块 */
.doc-example { margin-top: 10px; }
.doc-example .api-example-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 5px;
}
.doc-example .api-example-head strong { font-size: 13px; color: #111827; }
.doc-example .secondary-btn { height: auto; padding: 3px 12px; font-size: 12px; border-radius: 8px; }
.doc-example pre {
  margin: 0;
  padding: 12px;
  border-radius: 12px;
  background: #0f172a;
  color: #dbeafe;
  overflow-x: auto;
  white-space: pre;
  font-family: Consolas, monospace;
  font-size: 12px;
  line-height: 1.6;
}

.doc-list { margin: 0; padding-left: 18px; display: grid; gap: 7px; font-size: 13px; color: #374151; line-height: 1.7; }
.doc-list code { font-family: Consolas, monospace; color: #111827; }