/* ============================================================
   拼豆图纸生成器 — 玻璃拟态主题
   ============================================================ */

:root {
  --accent: #E95D4F;
  --accent-2: #2E8C9C;
  --accent-grad: linear-gradient(135deg, #E95D4F 0%, #F0A24A 52%, #2E8C9C 100%);
  --accent-soft: rgba(255, 107, 107, 0.12);
  --accent-ring: rgba(255, 107, 107, 0.25);

  --glass-bg: rgba(255, 255, 255, 0.72);
  --glass-bg-strong: rgba(255, 255, 255, 0.9);
  --glass-bg-soft: rgba(255, 255, 255, 0.48);
  --glass-border: rgba(255, 255, 255, 0.7);
  --glass-border-soft: rgba(255, 255, 255, 0.4);

  --shadow-sm: 0 2px 10px rgba(31, 38, 135, 0.06);
  --shadow-md: 0 8px 30px rgba(31, 38, 135, 0.1);
  --shadow-lg: 0 20px 50px rgba(31, 38, 135, 0.15);
  --shadow-glow: 0 8px 24px rgba(255, 107, 107, 0.25);

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-pill: 999px;

  --text-1: #1a1a2e;
  --text-2: #4a4a6a;
  --text-3: #8888a0;
  --text-soft: #b0b0c4;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;

  --sidebar-w: 240px;
}

/* ---- 暗夜主题 ---- */
body.theme-dark {
  --glass-bg: rgba(30, 30, 46, 0.72);
  --glass-bg-strong: rgba(26, 26, 46, 0.92);
  --glass-bg-soft: rgba(40, 40, 60, 0.48);
  --glass-border: rgba(255, 255, 255, 0.12);
  --glass-border-soft: rgba(255, 255, 255, 0.08);
  --text-1: #f0f0f5;
  --text-2: #c0c0d0;
  --text-3: #8888a0;
  --text-soft: #606070;
  background:
    linear-gradient(115deg, rgba(248, 95, 78, 0.18), transparent 34%),
    linear-gradient(245deg, rgba(46, 140, 156, 0.18), transparent 38%),
    linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}

/* ---- 薄荷主题 ---- */
body.theme-mint {
  --accent: #2DBE8A;
  --accent-2: #5BC0BE;
  --accent-grad: linear-gradient(135deg, #2DBE8A 0%, #5BC0BE 100%);
  --shadow-glow: 0 8px 24px rgba(45, 190, 138, 0.25);
  background:
    linear-gradient(115deg, rgba(45, 190, 138, 0.12), transparent 34%),
    linear-gradient(245deg, rgba(91, 192, 190, 0.14), transparent 38%),
    linear-gradient(135deg, #f0fff8 0%, #e8fffd 48%, #f5fffe 100%);
}

/* ---- 日落主题 ---- */
body.theme-sunset {
  --accent: #FF6B6B;
  --accent-2: #FFA94D;
  --accent-grad: linear-gradient(135deg, #FF6B6B 0%, #FFA94D 100%);
  --shadow-glow: 0 8px 24px rgba(255, 107, 107, 0.25);
  background:
    linear-gradient(115deg, rgba(255, 107, 107, 0.14), transparent 34%),
    linear-gradient(245deg, rgba(255, 169, 77, 0.14), transparent 38%),
    linear-gradient(135deg, #fff5f0 0%, #fff0e6 48%, #fff8f0 100%);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei",
               "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  color: var(--text-1);
  line-height: 1.5;
  background:
    linear-gradient(115deg, rgba(248, 95, 78, 0.12), transparent 34%),
    linear-gradient(245deg, rgba(46, 140, 156, 0.14), transparent 38%),
    repeating-linear-gradient(90deg, rgba(26, 26, 46, 0.025) 0 1px, transparent 1px 22px),
    linear-gradient(135deg, #fff9f4 0%, #f3faf9 48%, #f7f5ff 100%);
  background-attachment: fixed;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(0, 0, 0, 0.15); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(0, 0, 0, 0.25); }

button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; outline: none; }

/* ============================================================
   APP SHELL — 桌面侧边栏 + 主内容区
   ============================================================ */

.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
}

.app-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: var(--space-5) var(--space-4);
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  backdrop-filter: blur(20px) saturate(160%);
  border-right: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  z-index: 100;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-2);
  margin-bottom: var(--space-5);
}
.brand-logo {
  width: 40px; height: 40px;
  border-radius: 12px;
  background: var(--accent-grad);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  box-shadow: var(--shadow-glow);
}
.brand-name { font-size: 17px; font-weight: 700; color: var(--text-1); letter-spacing: 0.3px; }
.vip-badge {
  margin-left: auto;
  padding: 2px 8px;
  font-size: 10px;
  font-weight: 700;
  color: #fff;
  background: var(--accent-grad);
  border-radius: var(--radius-pill);
  letter-spacing: 1px;
}

.side-nav { display: flex; flex-direction: column; gap: var(--space-2); flex: 1; }
.side-nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 11px var(--space-3);
  border-radius: var(--radius-md);
  color: var(--text-2);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
}
.side-nav-item:hover {
  background: var(--accent-soft);
  color: var(--text-1);
}
.side-nav-item.active {
  background: var(--accent-grad);
  color: #fff;
  box-shadow: var(--shadow-glow);
}
.side-nav-icon { font-size: 18px; line-height: 1; }
.side-nav-label { white-space: nowrap; }

.side-bottom { display: flex; flex-direction: column; gap: var(--space-2); margin-bottom: var(--space-4); }
.side-theme-btn {
  display: flex; align-items: center; gap: var(--space-3);
  padding: 10px var(--space-3);
  border-radius: var(--radius-md);
  color: var(--text-2);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
}
.side-theme-btn:hover { background: var(--accent-soft); color: var(--text-1); }

.side-footer {
  display: flex; flex-direction: column; align-items: center; gap: var(--space-2);
  padding-top: var(--space-4);
  border-top: 1px solid var(--glass-border-soft);
}
.side-qr-box {
  width: 72px; height: 72px;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border-soft);
  display: flex; align-items: center; justify-content: center;
  font-size: 32px;
}
.side-qr-hint { font-size: 11px; color: var(--text-3); text-align: center; }

/* ---- 主内容区 ---- */
.app-main {
  padding: var(--space-6) var(--space-6);
  overflow-y: auto;
  max-height: 100vh;
}

.page { display: none; }
.page.active { display: block; animation: fadeIn 0.35s ease; }

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

.page-header { margin-bottom: var(--space-5); }
.page-title { font-size: 26px; font-weight: 800; color: var(--text-1); margin-bottom: var(--space-2); }
.page-subtitle { font-size: 14px; color: var(--text-3); }

.nav-bar {
  display: flex; align-items: center; gap: var(--space-4);
  margin-bottom: var(--space-5);
}
.back-btn {
  padding: 8px 16px;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-1);
  font-size: 14px; font-weight: 500;
  transition: all 0.2s;
}
.back-btn:hover { background: var(--accent-soft); }
.nav-title { font-size: 20px; font-weight: 700; color: var(--text-1); }

/* ============================================================
   画豆图 — 列表页
   ============================================================ */

.new-card {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: var(--space-6);
  background: var(--glass-bg);
  border: 2px dashed var(--glass-border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all 0.25s;
  margin-bottom: var(--space-5);
  cursor: pointer;
}
.new-card:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.new-icon {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--accent-grad);
  color: #fff;
  font-size: 28px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-3);
  box-shadow: var(--shadow-glow);
}
.new-text { font-size: 16px; font-weight: 700; color: var(--text-1); margin-bottom: 4px; }
.new-desc { font-size: 13px; color: var(--text-3); }

.storage-warning {
  padding: 12px 16px;
  background: rgba(255, 193, 7, 0.1);
  border: 1px solid rgba(255, 193, 7, 0.3);
  border-radius: var(--radius-md);
  font-size: 13px;
  color: #8a6d00;
  margin-bottom: var(--space-5);
}
body.theme-dark .storage-warning { color: #ffd54f; }

.section-title {
  font-size: 16px; font-weight: 700; color: var(--text-1); margin-bottom: var(--space-4);
}
.section-title .count { font-size: 13px; color: var(--text-3); font-weight: 400; }

.draw-empty {
  text-align: center;
  padding: var(--space-6);
  color: var(--text-soft);
  font-size: 14px;
}

.works-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: var(--space-4); }
.work-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.25s;
  cursor: pointer;
}
.work-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.work-thumb {
  width: 100%; aspect-ratio: 1;
  background: #fff;
  display: block;
  image-rendering: pixelated;
}
body.theme-dark .work-thumb { background: #1a1a2e; }
.work-info { padding: 12px; }
.work-name { font-size: 14px; font-weight: 600; color: var(--text-1); margin-bottom: 4px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.work-meta { font-size: 12px; color: var(--text-3); }
.work-del {
  margin-top: 8px;
  width: 100%;
  padding: 6px;
  border-radius: var(--radius-sm);
  background: rgba(255,107,107,0.08);
  color: #e74c3c;
  font-size: 12px;
  transition: all 0.2s;
}
.work-del:hover { background: rgba(255,107,107,0.18); }

/* ============================================================
   画豆图 — 新建画布页
   ============================================================ */

.form-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  margin-bottom: var(--space-5);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.row { display: flex; align-items: center; gap: var(--space-4); padding: var(--space-3) 0; }
.label { font-size: 14px; font-weight: 600; color: var(--text-1); min-width: 90px; }
.divider { height: 1px; background: var(--glass-border-soft); margin: 0; }
.input {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  background: var(--glass-bg-soft);
  color: var(--text-1);
  font-size: 14px;
  transition: all 0.2s;
}
.input:focus { border-color: var(--accent); background: var(--glass-bg-strong); box-shadow: 0 0 0 3px var(--accent-ring); }
.select-box {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  background: var(--glass-bg-soft);
  color: var(--text-1);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
}
.select-box:focus { border-color: var(--accent); }
.start-btn {
  width: 100%;
  padding: 14px;
  border-radius: var(--radius-md);
  background: var(--accent-grad);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  box-shadow: var(--shadow-glow);
  transition: all 0.2s;
}
.start-btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-lg); }
.start-btn:active { transform: translateY(0); }

/* ============================================================
   画豆图 — 画布编辑页
   ============================================================ */

.top-bar {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: var(--space-4);
  flex-wrap: wrap; gap: var(--space-3);
}
.current-color-chip {
  display: flex; align-items: center; gap: var(--space-2);
  padding: 8px 14px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
}
.color-dot { width: 24px; height: 24px; border-radius: 50%; border: 2px solid #fff; box-shadow: 0 0 0 1px rgba(0,0,0,0.1); background: #ccc; }
.color-code { font-size: 14px; font-weight: 600; color: var(--text-1); }
.top-actions { display: flex; gap: var(--space-2); }
.top-btn {
  padding: 9px 18px;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-1);
  font-size: 14px; font-weight: 500;
  transition: all 0.2s;
}
.top-btn:hover { background: var(--accent-soft); }
.top-btn.primary { background: var(--accent-grad); color: #fff; border: none; box-shadow: var(--shadow-glow); }

.board-wrap {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  margin-bottom: var(--space-4);
  overflow: auto;
  display: flex; justify-content: center; align-items: center;
  min-height: 400px;
}
.board {
  background: #fff;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  cursor: crosshair;
  image-rendering: pixelated;
  touch-action: none;
}
body.theme-dark .board { background: #2a2a3e; }

.draw-toolbar {
  display: flex; gap: var(--space-2);
  padding: var(--space-3);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  justify-content: center;
  flex-wrap: wrap;
}
.tool-item {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  color: var(--text-2);
  font-size: 12px;
  transition: all 0.2s;
  min-width: 64px;
}
.tool-item:hover { background: var(--accent-soft); color: var(--text-1); }
.tool-item.active { background: var(--accent-grad); color: #fff; box-shadow: var(--shadow-glow); }
.tool-icon { font-size: 20px; }
.tool-name { font-size: 12px; font-weight: 500; }
.tool-color-chip { width: 24px; height: 24px; border-radius: 6px; border: 2px solid rgba(0,0,0,0.1); }

/* 色板弹窗 */
.palette-mask {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 200;
  align-items: center; justify-content: center;
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}
.palette-mask.show { display: flex; }
.palette-panel {
  width: 620px; max-width: 92vw; max-height: 80vh;
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  display: flex; flex-direction: column;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.palette-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--glass-border-soft);
}
.palette-title { font-size: 16px; font-weight: 700; color: var(--text-1); }
.palette-close { font-size: 20px; color: var(--text-3); cursor: pointer; }
.palette-search { padding: var(--space-3) var(--space-5); border-bottom: 1px solid var(--glass-border-soft); }
.palette-search input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  background: var(--glass-bg-soft);
  color: var(--text-1);
  font-size: 13px;
}
.palette-scroll { overflow-y: auto; padding: var(--space-4); }
.palette-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
  gap: var(--space-2);
}
.palette-cell {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  padding: 8px 4px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.15s;
  border: 2px solid transparent;
}
.palette-cell:hover { background: var(--accent-soft); border-color: var(--accent-ring); }
.palette-cell.selected { border-color: var(--accent); background: var(--accent-soft); }
.palette-swatch { width: 36px; height: 36px; border-radius: 6px; border: 1px solid rgba(0,0,0,0.1); }
.palette-code { font-size: 11px; color: var(--text-2); font-weight: 500; }

/* ============================================================
   VIP 功能页 — AI 像素图
   ============================================================ */

.ai-vip-tag {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 10px;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  background: var(--accent-grad);
  border-radius: var(--radius-pill);
  letter-spacing: 1px;
  vertical-align: middle;
}

.ai-container { max-width: 820px; }
.ai-layout { display: flex; gap: var(--space-5); }
.ai-left { flex: 1; min-width: 0; }

.ai-step { margin-bottom: var(--space-5); }
.ai-section-title {
  display: flex; align-items: center; gap: var(--space-2);
  font-size: 16px; font-weight: 700; color: var(--text-1);
  margin-bottom: var(--space-3);
}
.ai-step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--accent-grad);
  color: #fff; font-size: 14px; font-weight: 700;
}
.ai-step-num-history { background: var(--glass-bg); color: var(--text-2); border: 1px solid var(--glass-border); }

.ai-upload-area {
  border: 2px dashed var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  text-align: center;
  transition: all 0.25s;
  cursor: pointer;
  background: var(--glass-bg-soft);
  position: relative;
}
.ai-upload-area:hover { border-color: var(--accent); background: var(--accent-soft); }
.ai-upload-area.has-image { border-style: solid; padding: 0; cursor: default; }

.ai-upload-empty { padding: var(--space-4); }
.upload-icon-wrap { margin-bottom: var(--space-3); }
.upload-icon {
  width: 56px; height: 56px;
  margin: 0 auto;
  border-radius: 50%;
  background: var(--accent-grad);
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-glow);
}
.icon-plus { color: #fff; font-size: 28px; font-weight: 300; }
.upload-title { font-size: 15px; font-weight: 600; color: var(--text-1); margin-bottom: 4px; }
.upload-subtitle { font-size: 13px; color: var(--text-3); }

.ai-upload-preview { position: relative; }
.ai-upload-preview img { width: 100%; max-height: 360px; object-fit: contain; border-radius: var(--radius-md); display: block; }
.ai-clear-btn {
  position: absolute; top: 10px; right: 10px;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: rgba(0,0,0,0.5);
  color: #fff; font-size: 16px;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s;
}
.ai-clear-btn:hover { background: rgba(0,0,0,0.7); }

.ai-loading {
  display: none;
  padding: var(--space-5);
  text-align: center;
  background: var(--glass-bg);
  border-radius: var(--radius-md);
}
.ai-loading.show { display: block; }
.ai-loading-spinner {
  width: 48px; height: 48px;
  margin: 0 auto var(--space-3);
  border: 4px solid var(--glass-border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.ai-loading-text { font-size: 15px; font-weight: 600; color: var(--text-1); margin-bottom: var(--space-3); }
.ai-progress-wrap { display: flex; align-items: center; gap: var(--space-2); margin-bottom: var(--space-2); }
.ai-progress-bar { flex: 1; height: 8px; background: var(--glass-border-soft); border-radius: var(--radius-pill); overflow: hidden; }
.ai-progress-fill { height: 100%; width: 0%; background: var(--accent-grad); border-radius: var(--radius-pill); transition: width 0.3s; }
.ai-progress-num { font-size: 13px; font-weight: 600; color: var(--text-2); min-width: 40px; text-align: right; }
.ai-loading-sub { font-size: 12px; color: var(--text-3); }

.ai-upload-result-panel { display: none; padding: var(--space-4); background: var(--glass-bg); border-radius: var(--radius-md); margin-top: var(--space-3); }
.ai-upload-result-panel.show { display: block; }
.ai-upload-result-title { font-size: 15px; font-weight: 700; color: var(--text-1); margin-bottom: var(--space-3); }
.ai-upload-result-compare { display: flex; gap: var(--space-4); margin-bottom: var(--space-4); }
.ai-upload-result-item { flex: 1; }
.ai-upload-result-label { font-size: 12px; color: var(--text-3); margin-bottom: 6px; text-align: center; }
.ai-upload-result-item img { width: 100%; border-radius: var(--radius-md); display: block; }
.ai-upload-result-actions { display: flex; gap: var(--space-2); flex-wrap: wrap; }
.ai-upload-result-actions-v2 { flex-direction: column; }
.ai-result-btn {
  flex: 1;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-1);
  font-size: 14px; font-weight: 500;
  transition: all 0.2s;
  cursor: pointer;
}
.ai-result-btn:hover { background: var(--accent-soft); }
.ai-result-btn-primary { background: var(--accent-grad); color: #fff; border: none; box-shadow: var(--shadow-glow); }
.ai-result-btn-secondary { background: linear-gradient(135deg, #ffecd2, #fcb69f); color: #7a3e1f; border: none; }
.ai-result-btn-ghost { background: transparent; color: var(--text-2); border-style: dashed; }

/* 购买次数页 */
.purchase-page { padding: var(--space-4); }
.purchase-card {
  max-width: 420px;
  margin: var(--space-5) auto 0;
  padding: var(--space-5);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  text-align: center;
}
.purchase-icon { font-size: 48px; margin-bottom: var(--space-3); }
.purchase-title { font-size: 22px; font-weight: 700; color: var(--text-1); margin-bottom: var(--space-2); }
.purchase-desc { font-size: 14px; color: var(--text-2); line-height: 1.6; margin-bottom: var(--space-4); }
.purchase-plans { display: flex; gap: var(--space-3); margin-bottom: var(--space-4); }
.purchase-plan {
  flex: 1;
  position: relative;
  padding: var(--space-3);
  background: var(--glass-bg-soft);
  border: 2px solid var(--glass-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s;
}
.purchase-plan:hover, .purchase-plan.selected { border-color: var(--accent); background: var(--accent-soft); }
.purchase-plan.recommended { border-color: #E95D4F; background: rgba(233, 93, 79, 0.08); }
.purchase-plan-badge {
  position: absolute; top: -10px; left: 50%; transform: translateX(-50%);
  background: var(--accent-grad); color: #fff;
  font-size: 11px; font-weight: 600;
  padding: 2px 10px; border-radius: var(--radius-pill);
}
.purchase-plan-count { font-size: 16px; font-weight: 700; color: var(--text-1); margin-bottom: 4px; }
.purchase-plan-price { font-size: 24px; font-weight: 800; color: #E95D4F; margin-bottom: 2px; }
.purchase-plan-unit { font-size: 12px; color: var(--text-3); }
.purchase-btn {
  width: 100%;
  padding: 14px;
  border-radius: var(--radius-md);
  background: var(--accent-grad);
  color: #fff; font-size: 16px; font-weight: 600;
  border: none; cursor: pointer;
  box-shadow: var(--shadow-glow);
  transition: all 0.2s;
}
.purchase-btn:hover { opacity: 0.92; transform: translateY(-1px); }
.purchase-tip { font-size: 12px; color: var(--text-3); margin-top: var(--space-3); }

.ai-styles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: var(--space-3);
}
.ai-style-card {
  position: relative;
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  border: 2px solid var(--glass-border);
  background: var(--glass-bg);
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}
.ai-style-card:hover { border-color: var(--accent-ring); transform: translateY(-2px); }
.ai-style-card.selected { border-color: var(--accent); background: var(--accent-soft); }
.ai-style-thumb { width: 100%; aspect-ratio: 1; border-radius: var(--radius-md); margin-bottom: 8px; display: flex; align-items: center; justify-content: center; font-size: 36px; overflow: hidden; background: var(--glass-bg-soft); }
.ai-style-thumb img { width: 100%; height: 100%; object-fit: cover; image-rendering: pixelated; display: block; }
.ai-style-name { font-size: 13px; font-weight: 600; color: var(--text-1); }

.ai-styles-grid-v2 {
  grid-template-columns: repeat(2, 1fr);
}
.ai-style-card-v2 {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 12px;
  text-align: left;
}
.ai-style-card-v2 .ai-style-thumb {
  width: 72px;
  height: 72px;
  min-width: 72px;
  margin-bottom: 0;
  border-radius: var(--radius-md);
  font-size: 28px;
}
.ai-style-card-v2 .ai-style-info { flex: 1; }
.ai-style-card-v2 .ai-style-name { font-size: 15px; margin-bottom: 4px; }
.ai-style-card-v2 .ai-style-desc {
  font-size: 12px;
  color: var(--text-3);
  line-height: 1.4;
}
.ai-style-card-v2 .ai-style-recommend {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 2px 8px;
  background: var(--accent-grad);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  border-radius: var(--radius-pill);
}
.ai-cost-tip {
  margin-top: var(--space-3);
  padding: 10px 14px;
  background: rgba(46, 140, 156, 0.08);
  border: 1px solid rgba(46, 140, 156, 0.2);
  border-radius: var(--radius-md);
  font-size: 13px;
  color: var(--text-2);
}

@media (max-width: 768px) {
  .ai-styles-grid-v2 { grid-template-columns: 1fr; }
}

.ai-generate-btn {
  width: 100%;
  padding: 16px;
  border-radius: var(--radius-md);
  background: var(--accent-grad);
  color: #fff;
  font-size: 16px; font-weight: 700;
  display: flex; align-items: center; justify-content: center; gap: var(--space-2);
  box-shadow: var(--shadow-glow);
  transition: all 0.2s;
}
.ai-generate-btn:hover:not(:disabled) { transform: translateY(-1px); box-shadow: var(--shadow-lg); }
.ai-generate-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.ai-quota-tip { text-align: center; font-size: 12px; color: var(--text-3); margin-top: var(--space-2); }

.ai-history-step { }

/* ===== 次数与卡券卡片 ===== */
.ai-quota-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: linear-gradient(135deg, rgba(233,93,79,0.12), rgba(46,140,156,0.12));
  border: 1px solid rgba(233,93,79,0.25);
  border-radius: 16px;
  padding: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.ai-quota-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-right: 16px;
  border-right: 1px dashed rgba(0,0,0,0.12);
}
.ai-quota-num {
  font-size: 34px;
  font-weight: 800;
  line-height: 1;
  color: #E95D4F;
  font-variant-numeric: tabular-nums;
}
.ai-quota-label {
  font-size: 12px;
  color: #888;
  margin-top: 4px;
}
.ai-quota-right { flex: 1; min-width: 240px; }
.ai-redeem-row { display: flex; gap: 8px; }
.ai-redeem-input {
  flex: 1;
  height: 42px;
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,0.12);
  background: #fff;
  padding: 0 14px;
  font-size: 14px;
  outline: none;
  letter-spacing: 1px;
}
.ai-redeem-input:focus { border-color: #E95D4F; }
.ai-redeem-btn {
  height: 42px;
  padding: 0 22px;
  border: none;
  border-radius: 12px;
  background: linear-gradient(135deg, #E95D4F, #F0836B);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  white-space: nowrap;
}
.ai-redeem-btn:disabled { opacity: 0.6; cursor: default; }
.ai-quota-buy { margin-top: 8px; font-size: 12px; color: #888; }
.ai-history-clear {
  margin-left: auto;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  color: var(--text-3);
  font-size: 12px;
  transition: all 0.2s;
}
.ai-history-clear:hover { color: #e74c3c; }
.ai-history-tip {
  display: flex; align-items: center; gap: 6px;
  margin-bottom: var(--space-3);
  padding: 8px 12px;
  background: rgba(255,193,7,0.12);
  border: 1px solid rgba(255,193,7,0.35);
  border-radius: var(--radius-md);
  font-size: 12px; color: #8a6d00;
}
body.theme-dark .ai-history-tip { color: #ffd54f; }
.ai-history-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--space-3);
}
.ai-history-item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.2s;
}
.ai-history-item:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.ai-history-item img { width: 100%; aspect-ratio: 1; object-fit: cover; display: block; }
.ai-history-info { padding: 8px; }
.ai-history-style { font-size: 12px; font-weight: 600; color: var(--text-1); }
.ai-history-time { font-size: 11px; color: var(--text-3); }

/* ============================================================
   拼豆图转换页
   ============================================================ */

.bead-convert-page { }
.bead-convert-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: var(--space-5);
  align-items: start;
}
.bead-preview-panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  position: sticky;
  top: var(--space-4);
}
.bead-preview-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: var(--space-3);
}
.bead-preview-title { font-size: 14px; font-weight: 700; color: var(--text-1); }
.bead-preview-size { font-size: 13px; color: var(--accent); font-weight: 600; }
.bead-preview-wrap {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: auto;
  display: flex; align-items: center; justify-content: center;
  min-height: 320px;
  max-height: 70vh;
  touch-action: pan-y pan-x;
  -webkit-overflow-scrolling: touch;
}
body.theme-dark .bead-preview-wrap { background: #2a2a3e; }
.bead-preview-canvas {
  max-width: 100%;
  max-height: 70vh;
  display: block;
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
  image-rendering: crisp-edges;
}
.bead-params-panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}
.bead-source-thumb {
  width: 100%; height: 120px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--glass-bg-soft);
  margin-bottom: var(--space-4);
  display: flex; align-items: center; justify-content: center;
}
.bead-source-thumb img {
  max-width: 100%; max-height: 100%;
  object-fit: contain; display: block;
}
.bead-param-group { margin-bottom: var(--space-4); }
.bead-param-group:last-of-type { margin-bottom: var(--space-5); }
.bead-param-label {
  font-size: 14px; font-weight: 700; color: var(--text-1);
  margin-bottom: 6px;
}
.bead-param-value {
  font-size: 20px; font-weight: 800; color: var(--accent);
  margin-bottom: 8px;
}
.bead-param-static {
  font-size: 15px; font-weight: 600; color: var(--text-1);
  padding: 10px 14px;
  background: var(--glass-bg-soft);
  border-radius: var(--radius-md);
}
.bead-param-sublabel {
  font-size: 12px; color: var(--text-3);
  margin-top: 6px;
}
.bead-slider {
  width: 100%;
  height: 6px;
  border-radius: var(--radius-pill);
  background: var(--glass-border-soft);
  outline: none;
  -webkit-appearance: none;
  margin: 10px 0;
}
.bead-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid #fff;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
  cursor: pointer;
}
.bead-quick-btns {
  display: flex; gap: var(--space-2);
  flex-wrap: wrap;
}
.bead-quick-btn {
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: var(--glass-bg-soft);
  border: 1px solid var(--glass-border);
  color: var(--text-2);
  font-size: 13px; font-weight: 500;
  transition: all 0.2s;
}
.bead-quick-btn:hover, .bead-quick-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.bead-select {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  background: var(--glass-bg-soft);
  border: 1px solid var(--glass-border);
  color: var(--text-1);
  font-size: 14px;
}
.bead-convert-actions {
  display: flex; flex-direction: column; gap: var(--space-3);
}
.bead-action-btn {
  width: 100%;
  padding: 14px;
  border-radius: var(--radius-md);
  font-size: 15px; font-weight: 700;
  transition: all 0.2s;
}
.bead-action-btn-primary {
  background: var(--accent-grad);
  color: #fff;
  box-shadow: var(--shadow-glow);
}
.bead-action-btn-primary:hover { transform: translateY(-1px); box-shadow: var(--shadow-lg); }
.bead-action-btn-secondary {
  background: var(--glass-bg-soft);
  border: 1px solid var(--glass-border);
  color: var(--text-1);
}
.bead-action-btn-secondary:hover { background: var(--accent-soft); }

@media (max-width: 900px) {
  .bead-convert-layout { grid-template-columns: 1fr; }
  .bead-preview-panel { position: static; }
}

/* ============================================================
   拼豆图纸预览页
   ============================================================ */

.bead-preview-layout {
  display: flex; flex-direction: column;
  gap: var(--space-4);
  max-width: 900px; margin: 0 auto;
}
.bead-preview-topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-3); flex-wrap: wrap;
}
.bead-preview-tabs {
  display: flex; gap: var(--space-1);
  background: var(--glass-bg-soft);
  padding: 4px;
  border-radius: var(--radius-pill);
}
.bead-preview-tab {
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  border: none; background: transparent;
  color: var(--text-2); font-size: 14px; font-weight: 600;
  cursor: pointer; transition: all 0.2s;
}
.bead-preview-tab.active {
  background: #fff;
  color: var(--accent);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
body.theme-dark .bead-preview-tab.active { background: #3a3a50; }
.bead-zoom-control {
  display: flex; align-items: center; gap: var(--space-2);
}
.bead-zoom-btn {
  width: 28px; height: 28px;
  border-radius: 50%; border: none;
  background: var(--glass-bg-soft);
  color: var(--text-1); font-size: 16px; font-weight: 700;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
}
.bead-zoom-slider {
  width: 120px; height: 5px;
  -webkit-appearance: none;
  background: var(--glass-border-soft);
  border-radius: var(--radius-pill);
  outline: none;
}
.bead-zoom-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--accent); border: 2px solid #fff;
  cursor: pointer;
}
.bead-zoom-value {
  font-size: 13px; color: var(--text-2); font-weight: 600;
  min-width: 42px; text-align: right;
}
.bead-preview-tools {
  display: flex; gap: var(--space-2); flex-wrap: wrap;
}
.bead-tool-btn {
  padding: 8px 14px;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-2); font-size: 13px; font-weight: 600;
  cursor: pointer; transition: all 0.2s;
}
.bead-tool-btn:hover { background: var(--accent-soft); color: var(--accent); }
.bead-tool-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.bead-preview-stage {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  min-height: 320px;
  max-height: 70vh;
  display: flex; align-items: center; justify-content: center;
  overflow: auto;
  touch-action: pan-y pan-x;
  -webkit-overflow-scrolling: touch;
}
.bead-preview-img, .bead-preview-canvas2 {
  max-width: 100%;
  max-height: 65vh;
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
  image-rendering: crisp-edges;
  display: none;
}
.bead-preview-img.active, .bead-preview-canvas2.active { display: block; }
.bead-preview-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3);
}
.bead-stat-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  text-align: center;
}
.bead-stat-label {
  font-size: 12px; color: var(--text-3); margin-bottom: 4px;
}
.bead-stat-value {
  font-size: 22px; font-weight: 800; color: var(--accent);
}
.bead-color-list-panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}
.bead-color-list-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: var(--space-3);
  flex-wrap: wrap; gap: var(--space-2);
}
.bead-color-list-title {
  font-size: 15px; font-weight: 700; color: var(--text-1);
}
.bead-color-list-hint {
  font-size: 12px; color: var(--text-3);
}
.bead-color-list-toggle {
  font-size: 12px; color: var(--accent); background: transparent; border: none; cursor: pointer; font-weight: 600;
}
.bead-color-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--space-3);
}
.bead-color-list.collapsed { display: none; }
.bead-color-item {
  display: flex; align-items: center; gap: var(--space-2);
  background: var(--glass-bg-soft);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 8px;
}
.bead-color-swatch {
  width: 32px; height: 32px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(0,0,0,0.08);
  flex-shrink: 0;
}
.bead-color-info { flex: 1; min-width: 0; }
.bead-color-code {
  font-size: 14px; font-weight: 700; color: var(--text-1);
}
.bead-color-count {
  font-size: 12px; color: var(--text-3);
}
.bead-color-change {
  font-size: 12px; color: var(--accent); cursor: pointer; font-weight: 600;
}
.bead-preview-actions {
  display: grid; grid-template-columns: 1fr; gap: var(--space-3);
  padding-top: var(--space-2);
}
.bead-preview-action-btn {
  width: 100%; padding: 14px;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-1);
  font-size: 15px; font-weight: 700;
  cursor: pointer; transition: all 0.2s;
}
.bead-preview-action-btn:hover { background: var(--accent-soft); }
.bead-preview-action-btn.primary {
  background: var(--accent-grad); color: #fff; border: none;
  box-shadow: var(--shadow-glow);
}
.bead-preview-action-btn.primary:hover { transform: translateY(-1px); box-shadow: var(--shadow-lg); }

@media (max-width: 768px) {
  .bead-preview-topbar { flex-direction: column; align-items: stretch; }
  .bead-preview-tabs { justify-content: center; }
  .bead-zoom-control { justify-content: center; }
  .bead-preview-stats { grid-template-columns: repeat(3, 1fr); }
  .bead-preview-stage { padding: var(--space-3); min-height: 240px; }
}

/* ============================================================
   生成记录操作弹窗
   ============================================================ */

.history-action-modal {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 250;
  align-items: center; justify-content: center;
  -webkit-backdrop-filter: blur(5px);
  backdrop-filter: blur(5px);
  padding: var(--space-4);
}
.history-action-modal.show { display: flex; }
.history-action-content {
  width: 420px; max-width: 100%;
  max-height: 90vh;
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  display: flex; flex-direction: column;
}
.history-action-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--glass-border-soft);
}
.history-action-header h3 { font-size: 16px; font-weight: 700; color: var(--text-1); }
.history-action-close { font-size: 20px; color: var(--text-3); cursor: pointer; }
.history-action-body {
  padding: var(--space-4);
  overflow-y: auto;
  text-align: center;
}
.history-action-body img {
  width: 100%; max-height: 320px; object-fit: contain;
  border-radius: var(--radius-md); image-rendering: pixelated;
  background: var(--glass-bg-soft); display: block; margin: 0 auto var(--space-3);
}
.history-action-meta {
  display: flex; align-items: center; justify-content: center; gap: var(--space-3);
  margin-bottom: var(--space-4);
  font-size: 13px; color: var(--text-3);
}
.history-action-btns {
  display: flex; flex-direction: column; gap: var(--space-2);
}

/* ============================================================
   皮肤弹窗
   ============================================================ */

.theme-modal {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 300;
  align-items: center; justify-content: center;
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}
.theme-modal.show { display: flex; }
.theme-modal-content {
  width: 480px; max-width: 92vw;
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.theme-modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--glass-border-soft);
}
.theme-modal-header h2 { font-size: 18px; font-weight: 700; color: var(--text-1); }
.theme-modal-close { font-size: 20px; color: var(--text-3); cursor: pointer; }
.theme-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  padding: var(--space-4);
}
.theme-card {
  border: 2px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--space-2);
  cursor: pointer;
  transition: all 0.2s;
}
.theme-card:hover { border-color: var(--accent-ring); }
.theme-card.active { border-color: var(--accent); }
.theme-preview { width: 100%; height: 64px; border-radius: var(--radius-sm); margin-bottom: 6px; }
.theme-preview-default { background: linear-gradient(135deg, #E95D4F, #F0A24A 52%, #2E8C9C); }
.theme-preview-mint { background: linear-gradient(135deg, #2DBE8A, #5BC0BE); }
.theme-preview-sunset { background: linear-gradient(135deg, #FF6B6B, #FFA94D); }
.theme-preview-dark { background: linear-gradient(135deg, #1a1a2e, #0f3460); }
.theme-name { font-size: 13px; font-weight: 600; color: var(--text-1); text-align: center; }
.theme-default-tag { font-size: 10px; color: var(--accent); }

/* ---- 移动端顶部返回栏（默认隐藏） ---- */
.mobile-page-header {
  display: none;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.mobile-back-btn {
  background: transparent;
  border: none;
  color: var(--text-2);
  font-size: 14px;
  padding: 4px 0;
  cursor: pointer;
}
.mobile-page-title {
  flex: 1;
  text-align: center;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-1);
}
.mobile-vip-badge {
  padding: 2px 8px;
  font-size: 10px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, #E95D4F, #F0A24A);
  border-radius: var(--radius-pill);
}

/* ---- 移动端底部导航（默认隐藏） ---- */
.mobile-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: rgba(255, 255, 255, 0.95);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  backdrop-filter: blur(20px) saturate(160%);
  border-top: 1px solid var(--glass-border);
  z-index: 200;
  justify-content: space-around;
  align-items: center;
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
.mobile-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 6px 16px;
  border: none;
  background: transparent;
  color: var(--text-3);
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}
.mobile-nav-item.active {
  color: #E95D4F;
  font-weight: 700;
}
.mobile-nav-icon { font-size: 22px; line-height: 1; }

/* ============================================================
   响应式
   ============================================================ */

@media (max-width: 768px) {
  .app-shell { grid-template-columns: 1fr; }
  .app-sidebar { display: none; }
  .mobile-nav { display: flex; }
  .mobile-page-header { display: flex; }
  .ai-page-header { display: none; }
  .app-main { padding: var(--space-4); padding-bottom: 90px; max-height: none; min-height: 100vh; }
  .page-title { font-size: 20px; }
  .page-subtitle { font-size: 13px; }

  /* VIP 页移动端适配 */
  .ai-quota-card {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding: 14px;
  }
  .ai-quota-left {
    flex-direction: row;
    align-items: baseline;
    gap: 8px;
    padding-right: 0;
    border-right: none;
  }
  .ai-quota-num { font-size: 28px; }
  .ai-quota-right { min-width: auto; }

  /* 风格卡片 2x2 */
  .ai-styles-grid-v2 { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .ai-style-card-v2 {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
    padding: 10px;
  }
  .ai-style-card-v2 .ai-style-thumb {
    width: 100%;
    height: auto;
    aspect-ratio: 1;
    margin-bottom: 8px;
  }
  .ai-style-card-v2 .ai-style-name { font-size: 13px; }
  .ai-style-card-v2 .ai-style-desc { display: none; }

  /* 生成记录 */
  .ai-history-grid { grid-template-columns: repeat(3, 1fr); gap: 8px; }

  .ai-upload-result-compare { flex-direction: column; }

  /* 拼豆图页移动端适配：限制 canvas 高度，确保可以上下滑动 */
  .bead-preview-wrap, .bead-preview-stage {
    max-height: 55vh;
    min-height: 220px;
    touch-action: pan-y;
  }
  .bead-preview-canvas, .bead-preview-img, .bead-preview-canvas2 {
    max-height: 50vh;
  }
  .bead-convert-layout { gap: var(--space-4); }
  .bead-preview-panel { padding: var(--space-3); }
  .bead-params-panel { padding: var(--space-3); }
}