/* ============================================================
   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: 8px;
  --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;
  --tabbar-h: 64px;
}

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

html, body {
  height: 100%;
  overflow-x: hidden;     /* 防止某个内部元素超宽导致整页可横向滚动 */
  -webkit-text-size-adjust: 100%;  /* iOS Safari 横竖屏切换时不要自动放大字号 */
}

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;
}

/* 自定义滚动条 */
::-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; }
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; }

.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: var(--space-3) var(--space-4);
  border: none;
  background: transparent;
  color: var(--text-2);
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-md);
  text-align: left;
  transition: all 0.2s;
  width: 100%;
}
.side-nav-item:hover { background: rgba(255, 255, 255, 0.6); 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; }
.side-nav-label { flex: 1; }

.side-footer {
  padding: var(--space-4);
  text-align: center;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  margin-top: var(--space-4);
}
.side-qr {
  width: 100px; height: 100px;
  border-radius: var(--radius-sm);
  border: 2px solid rgba(255, 255, 255, 0.8);
  box-shadow: var(--shadow-sm);
  display: block;
  margin: 0 auto var(--space-2);
}
.side-qr-hint { font-size: 11px; color: var(--text-3); }

.app-main {
  padding: var(--space-6);
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}

.container { width: 100%; }

/* ============================================================
   首页主视觉 / 豆图库
   ============================================================ */

.home-hero {
  position: relative;
  min-height: 360px;
  margin-bottom: var(--space-6);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #111827;
  box-shadow: var(--shadow-lg);
  isolation: isolate;
}
.home-hero-media {
  position: absolute;
  inset: 0;
}
.home-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.home-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(13, 18, 30, 0.82) 0%, rgba(13, 18, 30, 0.58) 42%, rgba(13, 18, 30, 0.04) 100%);
  z-index: 0;
}
.home-hero-content {
  position: relative;
  z-index: 1;
  max-width: 560px;
  padding: 48px;
  color: #fff;
}
.home-hero-kicker {
  margin-bottom: 12px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  color: #8EE1DB;
}
.home-hero-title {
  font-size: 40px;
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: 0;
  margin-bottom: 16px;
}
.home-hero-copy {
  max-width: 430px;
  font-size: 15px;
  color: rgba(255,255,255,0.82);
}
.home-hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 430px;
  margin-top: 28px;
}
.home-hero-stats div {
  padding: 12px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius-md);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}
.home-hero-stats strong {
  display: block;
  font-size: 22px;
  line-height: 1;
}
.home-hero-stats span {
  display: block;
  margin-top: 6px;
  font-size: 11px;
  color: rgba(255,255,255,0.7);
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}
.section-eyebrow {
  margin-bottom: 4px;
  font-size: 11px;
  font-weight: 800;
  color: var(--accent-2);
  letter-spacing: 0;
}
.section-head h2,
.gallery-page-head h2 {
  font-size: 22px;
  line-height: 1.2;
  color: var(--text-1);
}
.section-link-btn {
  padding: 9px 14px;
  border: 1px solid rgba(46, 140, 156, 0.28);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.72);
  color: #1f6670;
  font-size: 13px;
  font-weight: 700;
}
.bead-gallery-section {
  margin-top: var(--space-6);
  padding: var(--space-5);
  background: rgba(255,255,255,0.64);
  border: 1px solid var(--glass-border-soft);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.bead-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}
.bead-card {
  overflow: hidden;
  background: rgba(255,255,255,0.86);
  border: 1px solid rgba(25, 34, 52, 0.08);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.bead-card-img {
  position: relative;
  aspect-ratio: 1 / 1;
  background: #eef3f4;
}
.bead-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.bead-card-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  padding: 4px 8px;
  border-radius: var(--radius-pill);
  background: rgba(17,24,39,0.72);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
}
.bead-card-body { padding: 14px; }
.bead-card-title {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
  font-size: 15px;
  font-weight: 800;
  color: var(--text-1);
}
.bead-card-size {
  flex-shrink: 0;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
}
.bead-card-desc {
  min-height: 36px;
  color: var(--text-2);
  font-size: 12px;
}
.bead-card-meta {
  display: grid;
  gap: 6px;
  margin-top: 12px;
  color: var(--text-3);
  font-size: 11px;
}
.bead-card-meta span {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.gallery-loading {
  grid-column: 1 / -1;
  padding: 32px;
  color: var(--text-3);
  text-align: center;
  border: 1px dashed var(--glass-border-soft);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.5);
}

/* 页面标题 */
.page-header {
  margin-bottom: var(--space-6);
  text-align: left;
}
.page-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-1);
  letter-spacing: -0.5px;
  margin-bottom: var(--space-2);
}
.page-subtitle { font-size: 14px; color: var(--text-3); }

/* ============================================================
   GLASS CARD 通用基类
   ============================================================ */

.upload-card, .preview-card, .params-card,
.feature-section, .miniapp-card,
.color-list-section, .image-actions,
.form-card, .new-card, .work-item,
.records-section, .result-section, .picker-toolbar,
.image-display-area, .preview-stats {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid var(--glass-border-soft);
  box-shadow: var(--shadow-sm);
  border-radius: var(--radius-lg);
}

/* ============================================================
   首页 - 上传卡片
   ============================================================ */

.upload-card {
  margin-bottom: var(--space-5);
  padding: var(--space-6);
}
.upload-area {
  border: 2px dashed rgba(255, 107, 107, 0.4);
  border-radius: var(--radius-md);
  padding: var(--space-6) var(--space-5);
  text-align: center;
  cursor: pointer;
  transition: all 0.25s;
  background: rgba(255, 255, 255, 0.3);
}
.upload-area:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  transform: translateY(-2px);
}
.upload-icon-wrap { display: inline-flex; }
.upload-icon {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: var(--accent-grad);
  display: flex; align-items: center; justify-content: center;
  font-size: 36px; color: #fff;
  margin-bottom: var(--space-4);
  box-shadow: var(--shadow-glow);
}
.icon-plus { line-height: 1; }
.upload-title { font-size: 16px; color: var(--text-1); font-weight: 600; margin-bottom: var(--space-2); }
.upload-subtitle { font-size: 13px; color: var(--text-3); }

/* 预览卡片 */
.preview-card {
  margin-bottom: var(--space-5);
  position: relative;
  overflow: hidden;
  padding: var(--space-3);
}
.preview-img {
  width: 100%;
  max-height: 360px;
  object-fit: contain;
  border-radius: var(--radius-md);
  display: block;
}
.preview-overlay {
  position: absolute;
  bottom: var(--space-4); right: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: rgba(0, 0, 0, 0.55);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background 0.2s;
}
.preview-overlay:hover { background: rgba(0, 0, 0, 0.7); }
.preview-btn { color: #fff; font-size: 12px; }
.preview-info {
  position: absolute;
  bottom: var(--space-4); left: var(--space-4);
  padding: var(--space-1) var(--space-3);
  background: rgba(0, 0, 0, 0.55);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-pill);
}
.info-text { color: #fff; font-size: 11px; }

/* 章节标题 */
.section-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-1);
  margin: var(--space-5) 0 var(--space-3);
  display: flex; align-items: center; gap: var(--space-2);
}

/* ============================================================
   参数卡片
   ============================================================ */

.params-card { padding: var(--space-5); margin-bottom: var(--space-5); }
.param-row { padding: var(--space-3) 0; }
.param-label-row {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: var(--space-3);
}
.param-name { font-size: 13px; color: var(--text-2); font-weight: 500; }
.param-value-box {
  display: inline-flex; align-items: baseline; gap: 2px;
  padding: 2px var(--space-3);
  background: var(--accent-soft);
  border-radius: var(--radius-pill);
}
.param-value { font-size: 14px; color: var(--accent); font-weight: 700; }
.param-unit { font-size: 11px; color: var(--accent); }
.param-hint { margin-top: var(--space-2); }
.dimension-text { font-size: 12px; color: var(--text-3); }
.param-desc { font-size: 12px; color: var(--text-3); margin-top: var(--space-2); }

/* 滑块 */
.param-slider {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 107, 107, 0.15);
  outline: none;
}
.param-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--accent);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(255, 107, 107, 0.4);
  transition: transform 0.15s;
}
.param-slider::-webkit-slider-thumb:hover { transform: scale(1.15); }
.param-slider::-moz-range-thumb {
  width: 22px; height: 22px; border-radius: 50%;
  background: #fff; border: 3px solid var(--accent); cursor: pointer;
  box-shadow: 0 2px 8px rgba(255, 107, 107, 0.4);
}

.divider { height: 1px; background: rgba(0, 0, 0, 0.06); margin: var(--space-3) 0; }

/* 快捷按钮 */
.quick-size-row { display: flex; align-items: center; gap: var(--space-3); margin-top: var(--space-3); }
.quick-size-label { font-size: 12px; color: var(--text-3); }
.quick-size-buttons { display: flex; gap: var(--space-2); flex-wrap: wrap; }
.quick-btn {
  padding: 6px 14px;
  border: 1px solid rgba(255, 107, 107, 0.3);
  background: rgba(255, 255, 255, 0.6);
  color: var(--accent);
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  transition: all 0.15s;
}
.quick-btn:hover { background: var(--accent-soft); }
.quick-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* select */
.select-box {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--glass-border-soft);
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--text-1);
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path fill='%23888' d='M6 8L0 0h12z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
  transition: all 0.2s;
}
.select-box:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-ring); }
.select-box-highlight {
  border-color: rgba(255, 107, 107, 0.4);
  background-color: var(--accent-soft);
}

/* ============================================================
   按钮
   ============================================================ */

.btn-area { margin: var(--space-5) 0; display: flex; flex-direction: column; gap: var(--space-4); }
.btn-change-image {
  width: 100%;
  padding: var(--space-4) !important;
  font-size: 16px !important;
  background: var(--accent-grad) !important;
  color: #fff !important;
  border: none !important;
  border-radius: var(--radius-md) !important;
  box-shadow: var(--shadow-glow);
}
.btn-change-image:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(255, 107, 107, 0.4);
}
.btn-primary {
  width: 100%;
  padding: var(--space-4);
  background: var(--accent-grad);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  box-shadow: var(--shadow-glow);
  transition: all 0.2s;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(255, 107, 107, 0.4); }
.btn-primary:active { transform: translateY(0); }
.btn-icon { font-size: 18px; }

.btn-secondary {
  padding: var(--space-3) var(--space-5);
  background: var(--glass-bg-strong);
  color: var(--text-1);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: all 0.2s;
}
.btn-secondary:hover { background: #fff; transform: translateY(-1px); box-shadow: var(--shadow-sm); }

/* ============================================================
   首页 — 功能入口
   ============================================================ */

.feature-section { padding: var(--space-5); margin-top: var(--space-5); }
@media (min-width: 900px) {
  .feature-section, .miniapp-card, .footer-tips { display: none !important; }
  .create-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    grid-template-areas:
      "preview title"
      "preview params"
      "preview button";
    grid-template-rows: auto auto 1fr;
    gap: var(--space-5);
  }
  .create-grid > .preview-card {
    grid-area: preview;
    margin: 0;
    align-self: stretch;
    position: relative;
    overflow: hidden;
    min-height: 0;
  }
  .create-grid > .preview-card .preview-img {
    position: absolute;
    inset: var(--space-3);
    width: auto;
    height: auto;
    max-width: calc(100% - var(--space-3) * 2);
    max-height: calc(100% - var(--space-3) * 2);
    margin: auto;
    object-fit: contain;
  }
  .create-grid > #paramsTitle { grid-area: title; margin-top: 0; }
  .create-grid > .params-card { grid-area: params; }
  .create-grid > .btn-area { grid-area: button; align-self: start; }
}
.feature-title { font-size: 14px; font-weight: 600; color: var(--text-2); margin-bottom: var(--space-4); }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-4);
}
.feature-item {
  display: flex; flex-direction: column; align-items: center;
  padding: var(--space-5) var(--space-3);
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--glass-border-soft);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.25s;
}
.feature-item:hover {
  background: rgba(255, 255, 255, 0.85);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.feature-icon {
  width: 56px; height: 56px;
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px;
  margin-bottom: var(--space-3);
  box-shadow: var(--shadow-sm);
}
.feature-icon-draw { background: linear-gradient(135deg, #ffd5d5, #ffb3b3); }
.feature-icon-picker { background: linear-gradient(135deg, #c5e7ff, #99d3ff); }
.feature-name { font-size: 15px; font-weight: 600; color: var(--text-1); margin-bottom: var(--space-1); }
.feature-desc { font-size: 12px; color: var(--text-3); text-align: center; }

/* ============================================================
   底部小程序卡 / 提示
   ============================================================ */

.miniapp-card { margin-top: var(--space-5); padding: var(--space-5); }
.miniapp-content { display: flex; align-items: center; gap: var(--space-5); }
.miniapp-text { flex: 1; }
.miniapp-text h3 { font-size: 16px; font-weight: 600; color: var(--text-1); margin-bottom: var(--space-2); }
.miniapp-text p { font-size: 13px; color: var(--text-3); }
.miniapp-qrcode img {
  width: 110px; height: 110px;
  border-radius: var(--radius-sm);
  border: 2px solid #fff;
  box-shadow: var(--shadow-sm);
  display: block;
}

.footer-tips { text-align: center; padding: var(--space-5) 0; }
.tips-text { font-size: 13px; color: var(--text-3); }

/* ============================================================
   覆盖页通用 — 结果页 / 识别页 / 画豆图
   ============================================================ */

.result-page, .picker-page, .draw-list-page, .gallery-page,
.draw-new-page, .draw-canvas-page, .ai-page {
  position: fixed;
  inset: 0;
  left: var(--sidebar-w);
  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%);
  z-index: 9000;
  overflow-y: auto;
  animation: fadeIn 0.3s ease;
}

.gallery-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-5);
}
.gallery-page-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}
.gallery-page-head p {
  margin-top: 8px;
  color: var(--text-3);
  font-size: 13px;
}
.bead-gallery-grid-full {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }

/* nav-bar 用于覆盖页顶部 */
.nav-bar {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4) var(--space-5);
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border-soft);
  margin: 0;
  border-radius: 0;
  box-shadow: var(--shadow-sm);
}
.nav-title { font-size: 18px; font-weight: 700; color: var(--text-1); }
.back-btn {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  padding: var(--space-2) var(--space-4);
  background: rgba(255, 255, 255, 0.7);
  color: var(--accent);
  border: 1px solid var(--glass-border-soft);
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: all 0.15s;
}
.back-btn:hover { background: #fff; transform: translateY(-50%) translateX(-2px); }

/* ============================================================
   结果页
   ============================================================ */

.result-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-5);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

@media (min-width: 1024px) {
  .result-container {
    grid-template-columns: 1.4fr 1fr;
    grid-template-areas:
      "preview actions"
      "preview colors"
      "imgact  colors";
    align-items: start;
  }
  .preview-section { grid-area: preview; }
  .image-actions { grid-area: imgact; }
  .color-list-section {
    grid-area: colors;
    max-height: calc(100vh - var(--space-5) * 6);
    overflow-y: auto;
    align-self: stretch;
  }
  .action-buttons { grid-area: actions; align-self: start; }
}

.preview-section {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border-soft);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: var(--shadow-sm);
}
.preview-wrapper {
  background: #fff;
  border-radius: var(--radius-md);
  padding: var(--space-3);
  overflow: auto;
  text-align: center;
}
.preview-wrapper canvas { max-width: 100%; height: auto; display: inline-block; }

.preview-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  padding: var(--space-4);
  margin-top: var(--space-3);
}
.preview-tabs {
  display: flex; gap: 4px; flex-wrap: wrap; align-items: center;
  padding: 4px;
  margin: 0 auto var(--space-3);
  width: fit-content;
  background: var(--glass-bg-strong);
  border: 1px solid var(--border-color);
  border-radius: 999px;
}
.preview-tab {
  padding: 6px 18px;
  font-size: 13px; font-weight: 600;
  color: var(--text-secondary);
  background: transparent; border: none;
  border-radius: 999px; cursor: pointer;
  transition: background .15s, color .15s;
}
.preview-tab:hover { color: var(--text-primary); }
.preview-tab.active {
  background: var(--accent, #FF6B6B);
  color: #fff;
}
.grid-step-group {
  display: flex; align-items: center; gap: 3px;
  margin-left: 6px; padding-left: 8px;
  border-left: 1px solid var(--border-color);
}
.grid-step-label {
  font-size: 11px; color: var(--text-secondary); white-space: nowrap;
}
.grid-step-btn {
  padding: 3px 10px;
  font-size: 11px; font-weight: 600;
  color: var(--text-secondary);
  background: transparent; border: none;
  border-radius: 999px; cursor: pointer;
  transition: background .15s, color .15s;
}
.grid-step-btn:hover { color: var(--text-primary); }
.grid-step-btn.active {
  background: rgba(0,0,0,0.12);
  color: var(--text-primary);
}
.grid-step-sep {
  width: 1px; height: 14px;
  background: var(--border-color);
  margin: 0 2px;
}
.grid-color-btn {
  padding: 2px 6px;
  font-size: 13px; line-height: 1;
  background: transparent; border: 1.5px solid transparent;
  border-radius: 4px; cursor: pointer;
  transition: border-color .15s;
}
.grid-color-btn.active {
  border-color: var(--accent, #FF6B6B);
}
#previewOriginImg {
  display: block; max-width: 100%; max-height: 600px;
  margin: 0 auto;
  border-radius: 4px;
}
#previewCanvas {
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
}
.result-color-tune,
.result-color-tune-label,
.result-color-tune-value { display: none !important; }

.param-preview-wrap {
  display: flex; flex-direction: column;
  padding: 12px;
  background: var(--glass-bg-strong);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  text-align: center;
  width: 100%;
  min-height: 400px;
  box-sizing: border-box;
  margin-bottom: var(--space-5);
}
@media (min-width: 900px) {
  .create-grid > .param-preview-wrap {
    grid-area: preview;
    margin: 0;
    align-self: stretch;
    min-height: 0;
  }
}
.param-preview-label {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13px; color: var(--text-secondary); margin-bottom: 10px;
  flex: 0 0 auto;
}
.param-preview-meta { font-weight: 600; color: var(--accent); font-size: 14px; }
#paramPreviewCanvas {
  display: block; margin: 0 auto;
  flex: 1 1 auto;
  min-height: 0;
  max-width: 100%;
  max-height: 100%;
  width: auto; height: auto;
  object-fit: contain;
  background: #fff;
  border-radius: 6px;
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
}
.stat-item { text-align: center; }
.stat-label { display: block; font-size: 11px; color: var(--text-3); margin-bottom: var(--space-1); }
.stat-value { font-size: 18px; font-weight: 700; color: var(--accent); }

.image-actions { display: flex; gap: var(--space-3); padding: var(--space-3); }
.img-action-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-3);
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--glass-border-soft);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.15s;
}
.img-action-btn:hover { background: rgba(255, 255, 255, 0.85); transform: translateY(-2px); }
.img-action-icon { font-size: 22px; }
.img-action-text { font-size: 12px; color: var(--text-2); font-weight: 500; }

/* 颜色清单 */
.color-list-section { padding: var(--space-4); }
.btn-reselect {
  background: var(--accent-grad) !important;
  color: #fff !important;
  border: none !important;
  box-shadow: var(--shadow-glow);
}
.btn-reselect:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(255, 107, 107, 0.4);
}
.color-list-hint {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 2px 10px;
  border-radius: 999px;
  margin-left: 8px;
  vertical-align: middle;
}
.color-item {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  background: rgba(255,255,255,0.5);
  border: 1px solid var(--glass-border-soft);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-2);
  transition: all .2s;
}
.color-item:hover { background: rgba(255,255,255,0.75); transform: translateX(2px); }
.color-block {
  width: 32px; height: 32px;
  border-radius: 8px;
  border: 2px solid #fff;
  box-shadow: 0 2px 6px rgba(0,0,0,0.12);
  flex-shrink: 0;
}
.color-info { display: flex; flex-direction: column; gap: 2px; flex: 1; min-width: 0; }
.color-name { font-size: 13px; font-weight: 600; color: var(--text-1); }
.color-count { font-size: 11px; color: var(--text-3); }
.color-list-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: var(--space-3);
}
.color-list-header h3 { font-size: 15px; font-weight: 600; color: var(--text-1); }
.toggle-btn {
  padding: 4px 12px;
  background: var(--accent-soft);
  color: var(--accent);
  border: none;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
}
.color-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: var(--space-2); }
.color-list-item {
  display: flex; align-items: center; gap: var(--space-2);
  padding: var(--space-2);
  background: rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s;
  border: 1px solid transparent;
}
.color-list-item:hover { background: #fff; border-color: var(--accent-soft); }
.color-list-swatch { width: 24px; height: 24px; border-radius: 6px; border: 1px solid rgba(0,0,0,0.08); flex-shrink: 0; }
.color-list-info { flex: 1; font-size: 12px; color: var(--text-2); min-width: 0; overflow: hidden; }
.color-edit-hint { font-size: 10px; color: var(--text-soft); margin-left: 4px; }

.copy-btn {
  margin-top: var(--space-3);
  padding: var(--space-2) var(--space-4);
  background: var(--accent-soft);
  color: var(--accent);
  border: none;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
.copy-btn:hover { background: rgba(255, 107, 107, 0.2); }

.action-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border-soft);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.action-buttons .btn-secondary { width: 100%; }

/* ============================================================
   弹窗（modal）通用
   ============================================================ */

.color-picker-mask, .palette-mask, .activate-modal,
.activate-success-modal, .loading-mask {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  animation: fadeIn 0.2s ease;
}

.color-picker-panel, .palette-panel,
.activate-content, .activate-success-content {
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.25s ease;
}

.color-picker-panel { width: 100%; max-width: 480px; max-height: 80vh; display: flex; flex-direction: column; overflow: hidden; }
.color-picker-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid rgba(0,0,0,0.05);
}
.color-picker-title-row { display: flex; align-items: center; gap: var(--space-3); }
.color-picker-current { width: 32px; height: 32px; border-radius: 8px; border: 1px solid rgba(0,0,0,0.1); }
.color-picker-title { font-size: 15px; font-weight: 600; color: var(--text-1); }
.color-picker-close {
  font-size: 18px; color: var(--text-3); cursor: pointer;
  width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.15s;
}
.color-picker-close:hover { background: rgba(0,0,0,0.05); }
.color-picker-scroll { overflow-y: auto; padding: var(--space-4); flex: 1; }
.color-picker-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(64px, 1fr)); gap: var(--space-2); }
.color-picker-item {
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  padding: 0;
  text-align: center;
  cursor: pointer;
  transition: all 0.15s;
  position: relative;
  overflow: hidden;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ddd;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08) inset;
}
.color-picker-item:hover { transform: translateY(-2px) scale(1.05); box-shadow: var(--shadow-md); border-color: #fff; }
.color-picker-item.current { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-ring); }
.color-picker-swatch, .color-picker-item-swatch {
  position: absolute; inset: 0; z-index: 0;
}
.color-picker-code, .color-picker-item-code {
  position: relative; z-index: 1;
  font-size: 11px; font-weight: 700;
  color: #fff;
  text-shadow: 0 1px 2px rgba(0,0,0,0.6), 0 0 3px rgba(0,0,0,0.4);
  padding: 2px 4px;
  word-break: break-all;
}

/* 激活弹窗 */
.activate-content { width: 100%; max-width: 380px; padding: var(--space-6); text-align: center; }
.activate-title { font-size: 18px; font-weight: 700; color: var(--text-1); margin-bottom: var(--space-2); }
.activate-desc { font-size: 13px; color: var(--text-3); margin-bottom: var(--space-4); }
.activate-input-wrap { margin-bottom: var(--space-3); }
.activate-input {
  width: 100%; padding: var(--space-3) var(--space-4);
  border: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.7);
  border-radius: var(--radius-md);
  font-size: 14px; text-align: center; letter-spacing: 1px;
}
.activate-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-ring); }
.activate-error { font-size: 12px; color: #e74c3c; min-height: 16px; margin-bottom: var(--space-3); }
.activate-btn {
  width: 100%; padding: var(--space-3); background: var(--accent-grad);
  color: #fff; border: none; border-radius: var(--radius-md);
  font-size: 15px; font-weight: 600; cursor: pointer;
  box-shadow: var(--shadow-glow);
}
.activate-hint { font-size: 11px; color: var(--text-3); margin-top: var(--space-3); }

.activate-success-content { width: 100%; max-width: 320px; padding: var(--space-6); text-align: center; }
.activate-success-icon {
  width: 64px; height: 64px; border-radius: 50%;
  background: linear-gradient(135deg, #4ECDC4, #44A08D);
  color: #fff; font-size: 32px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto var(--space-3);
  box-shadow: 0 8px 24px rgba(78, 205, 196, 0.3);
}
.activate-success-title { font-size: 18px; font-weight: 700; color: var(--text-1); margin-bottom: var(--space-2); }
.activate-success-text { font-size: 13px; color: var(--text-3); margin-bottom: var(--space-4); }
.activate-success-btn {
  padding: var(--space-3) var(--space-6); background: var(--accent-grad);
  color: #fff; border: none; border-radius: var(--radius-md);
  font-size: 14px; font-weight: 600; cursor: pointer;
}

/* 加载遮罩 */
.loading-content { background: var(--glass-bg-strong); padding: var(--space-6); border-radius: var(--radius-lg); text-align: center; box-shadow: var(--shadow-lg); }
.loading-spinner {
  width: 40px; height: 40px;
  border: 3px solid var(--accent-soft);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto var(--space-3);
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-text { font-size: 13px; color: var(--text-2); }

/* ============================================================
   色号识别页
   ============================================================ */

.picker-page #pickerUploadCard { max-width: 600px; margin: var(--space-6) auto; }

.picker-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-5);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 1024px) {
  .picker-section {
    grid-template-columns: 1.6fr 1fr;
    grid-template-areas:
      "topact  topact"
      "toolbar toolbar"
      "hintbar hintbar"
      "image   side"
      "btnbar  side"
      "records records";
  }
  .picker-top-actions { grid-area: topact; }
  .picker-toolbar { grid-area: toolbar; }
  .image-hint-bar { grid-area: hintbar; }
  .image-display-area { grid-area: image; }
  .result-section { grid-area: side; align-self: start; position: sticky; top: var(--space-4); }
  .picker-btn-area { grid-area: btnbar; }
  .records-section { grid-area: records; }
}

.picker-top-actions {
  display: flex;
  justify-content: flex-end;
}
.btn-change-image {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--accent-grad);
  color: #fff;
  border: none;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow-glow);
  transition: all 0.2s;
}
.btn-change-image:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(255,107,107,0.35); }

.picker-toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
}
.picker-toolbar-left, .picker-toolbar-right { flex-shrink: 0; }
.picker-toolbar-center { flex: 1; min-width: 0; display: flex; flex-direction: column; align-items: center; gap: var(--space-1); }

.magnifier-preview {
  position: relative;
  width: 80px; height: 80px;
  border: 2px solid var(--accent);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.6);
  box-shadow: var(--shadow-sm);
}
.magnifier-preview canvas { width: 100%; height: 100%; display: block; }
.magnifier-placeholder {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; color: var(--text-soft);
}

.picked-color-info { display: flex; flex-direction: column; gap: 2px; align-items: center; }
.picked-row { display: flex; align-items: center; gap: var(--space-2); font-size: 12px; color: var(--text-2); }
.picked-block { width: 18px; height: 18px; border-radius: 4px; border: 1px solid rgba(0,0,0,0.1); }
.picked-hex { font-family: 'SF Mono', Monaco, monospace; font-weight: 600; color: var(--text-1); }
.pick-hint { color: var(--text-3); font-size: 13px; }

.brand-box {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--glass-border-soft);
  background: rgba(255, 255, 255, 0.7);
  border-radius: var(--radius-md);
  font-size: 13px;
  color: var(--text-1);
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.image-hint-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-3);
  font-size: 11px;
  color: var(--text-3);
}
.hint-item { display: flex; align-items: center; gap: var(--space-1); }
.hint-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.hint-dot.double { background: #4ECDC4; }
.hint-divider { width: 1px; height: 12px; background: rgba(0,0,0,0.1); }

.image-display-area {
  min-height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: var(--space-3);
  overflow: hidden;
  touch-action: none;
}
.picker-image-wrap { position: relative; display: inline-block; user-select: none; max-width: 100%; }
.picker-image { display: block; max-width: 100%; pointer-events: none; user-select: none; border-radius: var(--radius-md); }
.crosshair-line-h, .crosshair-line-v {
  position: absolute;
  background: rgba(255, 107, 107, 0.85);
  pointer-events: none;
  z-index: 5;
  box-shadow: 0 0 4px rgba(0,0,0,0.3);
}
.crosshair-line-h { left: 0; right: 0; height: 1px; }
.crosshair-line-v { top: 0; bottom: 0; width: 1px; }
.crosshair-point {
  position: absolute;
  width: 12px; height: 12px;
  border: 2px solid var(--accent);
  background: rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 6;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.8);
}

.result-section {
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  padding: var(--space-5);
  border: 1px solid var(--glass-border-soft);
  box-shadow: var(--shadow-sm);
}
.result-title { font-size: 13px; font-weight: 600; color: var(--text-2); margin-bottom: var(--space-3); }
.result-card {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3);
  background: rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3);
}
.result-color { width: 56px; height: 56px; border-radius: var(--radius-sm); border: 1px solid rgba(0,0,0,0.08); flex-shrink: 0; }
.result-info { flex: 1; display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.result-code { font-size: 16px; font-weight: 700; color: var(--text-1); }
.result-hex { font-family: 'SF Mono', Monaco, monospace; color: var(--text-3); font-size: 12px; }
.save-btn {
  width: 100%;
  padding: var(--space-3);
  background: var(--accent-grad);
  color: #fff; border: none;
  border-radius: var(--radius-md);
  font-size: 14px; font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow-glow);
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
}

.picker-btn-area { display: flex; gap: var(--space-3); }
.picker-btn-area button { flex: 1; }

.records-section {
  padding: var(--space-4);
}
.records-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--space-3); }
.records-title { font-size: 14px; font-weight: 600; color: var(--text-1); }
.records-count { font-size: 12px; color: var(--text-3); }
.records-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: var(--space-2); }
.record-item {
  display: flex; align-items: center; gap: var(--space-2);
  padding: var(--space-2);
  background: rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-sm);
}
.record-swatch { width: 36px; height: 36px; border-radius: 6px; border: 1px solid rgba(0,0,0,0.08); }
.record-info { flex: 1; min-width: 0; }
.record-code { font-size: 13px; font-weight: 600; color: var(--text-1); }
.record-meta { font-size: 11px; color: var(--text-3); }
.record-delete { color: var(--accent); cursor: pointer; padding: 4px 8px; }
.clear-all-btn {
  margin-top: var(--space-3); width: 100%;
  padding: var(--space-2) var(--space-3);
  background: transparent;
  border: 1px solid rgba(255, 107, 107, 0.4);
  color: var(--accent);
  border-radius: var(--radius-md);
  font-size: 13px; cursor: pointer;
}
.clear-all-btn:hover { background: var(--accent-soft); }

/* ============================================================
   画豆图列表页
   ============================================================ */

.draw-list-page > *:not(.nav-bar),
.draw-new-page > *:not(.nav-bar) {
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-5);
  padding-right: var(--space-5);
}

.new-card {
  margin: var(--space-5) auto;
  padding: var(--space-6);
  text-align: center;
  cursor: pointer;
  border: 2px dashed rgba(255, 107, 107, 0.4);
  transition: all 0.25s;
}
.new-card:hover { background: var(--accent-soft); transform: translateY(-2px); }
.new-icon {
  width: 56px; height: 56px;
  margin: 0 auto var(--space-2);
  border-radius: 16px;
  background: var(--accent-grad);
  color: #fff;
  font-size: 32px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-glow);
}
.new-text { font-size: 16px; font-weight: 600; color: var(--text-1); }
.new-desc { font-size: 12px; color: var(--text-3); margin-top: 4px; }

.count { font-size: 13px; color: var(--text-3); font-weight: normal; }
.draw-empty { text-align: center; color: var(--text-3); font-size: 13px; padding: var(--space-6) 0; }

.works-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--space-4);
  padding-bottom: var(--space-6);
}
.work-item {
  padding: 0;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}
.work-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.work-thumb, .work-thumb-placeholder {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-soft);
  font-size: 36px;
}
.work-info { padding: var(--space-3); }
.work-name {
  font-size: 13px; font-weight: 600; color: var(--text-1);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.work-meta { font-size: 11px; color: var(--text-3); margin-top: 2px; }
.work-delete {
  position: absolute; top: var(--space-2); right: var(--space-2);
  padding: 6px 12px;
  background: linear-gradient(135deg, #ff4757 0%, #ff6b81 100%);
  color: #fff;
  border: 2px solid #fff;
  border-radius: 999px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(255, 71, 87, 0.4);
  transition: all 0.2s;
  z-index: 5;
}
.work-delete:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 18px rgba(255, 71, 87, 0.55);
}

/* ============================================================
   新建画布页
   ============================================================ */

.form-card { padding: var(--space-5); margin: var(--space-5) auto; }
.form-card .row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) 0;
}
.form-card .label { font-size: 14px; color: var(--text-2); flex-shrink: 0; font-weight: 500; }
.form-card .input {
  flex: 1;
  padding: var(--space-2) var(--space-3);
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--glass-border-soft);
  border-radius: var(--radius-md);
  font-size: 14px;
  text-align: right;
  color: var(--text-1);
}
.form-card .input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-ring); }
.form-card .select-box { flex: 1; max-width: 260px; }

.start-btn {
  display: block;
  margin: var(--space-5) auto;
  width: calc(100% - var(--space-5) * 2);
  max-width: 300px;
  padding: var(--space-4);
  background: var(--accent-grad);
  color: #fff; border: none;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow-glow);
  transition: all 0.2s;
}
.start-btn:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(255,107,107,0.4); }

/* ============================================================
   画布编辑页
   ============================================================ */

.draw-canvas-page { display: flex; flex-direction: column; }
.draw-canvas-page .top-bar {
  display: flex; justify-content: space-between; align-items: center;
  padding: var(--space-3) var(--space-5);
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border-soft);
}
.current-color-chip {
  display: flex; align-items: center; gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--glass-border-soft);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all 0.15s;
}
.current-color-chip:hover { background: #fff; }
.color-dot { width: 22px; height: 22px; border-radius: 50%; border: 1px solid rgba(0,0,0,0.1); }
.color-code { font-size: 13px; color: var(--text-1); font-weight: 600; }
.top-actions { display: flex; gap: var(--space-2); }
.top-btn {
  padding: var(--space-2) var(--space-3);
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--glass-border-soft);
  border-radius: var(--radius-md);
  font-size: 13px;
  color: var(--text-1);
  cursor: pointer;
  transition: all 0.15s;
}
.top-btn:hover { background: #fff; }
.top-btn.primary { background: var(--accent-grad); color: #fff; border-color: transparent; box-shadow: var(--shadow-glow); }
.top-btn.primary:hover { transform: translateY(-1px); }

.board-wrap {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--space-4);
  overflow: auto;
}
.board {
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  max-width: 100%;
  touch-action: none;
  cursor: crosshair;
}

.draw-toolbar {
  display: flex;
  justify-content: space-around;
  padding: var(--space-3) var(--space-4);
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--glass-border-soft);
}
.tool-item {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  cursor: pointer;
  min-width: 56px;
  transition: all 0.15s;
}
.tool-item:hover { background: rgba(255, 255, 255, 0.5); }
.tool-item.active { background: var(--accent-soft); }
.tool-item.active .tool-name { color: var(--accent); }
.tool-icon { font-size: 22px; }
.tool-name { font-size: 11px; color: var(--text-2); font-weight: 500; }
.tool-color-chip {
  width: 26px; height: 26px; border-radius: 50%;
  border: 2px solid #fff;
  box-shadow: 0 0 0 1px rgba(0,0,0,0.1);
}

@media (min-width: 1024px) {
  .draw-canvas-page .board-wrap { padding-right: 120px; }
  .draw-canvas-page .draw-toolbar {
    position: fixed;
    right: var(--space-5);
    top: 50%;
    transform: translateY(-50%);
    flex-direction: column;
    padding: var(--space-3);
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-border-soft);
    box-shadow: var(--shadow-md);
    border-top: 1px solid var(--glass-border-soft);
  }
}

/* 色板弹窗 */
.palette-panel {
  width: 100%;
  max-width: 560px;
  max-height: 70vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.palette-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid rgba(0,0,0,0.05);
}
.palette-title { font-size: 15px; font-weight: 600; color: var(--text-1); }
.palette-close {
  font-size: 18px; color: var(--text-3); cursor: pointer;
  width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.15s;
}
.palette-close:hover { background: rgba(0,0,0,0.05); }
.palette-scroll { overflow-y: auto; padding: var(--space-4); flex: 1; }
.palette-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(64px, 1fr)); gap: var(--space-2); }
.palette-item {
  display: flex; flex-direction: column; align-items: center;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.15s;
  background: rgba(255, 255, 255, 0.4);
}
.palette-item:hover { border-color: var(--glass-border); background: rgba(255, 255, 255, 0.8); }
.palette-item.active { border-color: var(--accent); background: var(--accent-soft); }
.palette-color { width: 38px; height: 38px; border-radius: 50%; border: 1px solid rgba(0,0,0,0.08); box-shadow: var(--shadow-sm); }
.palette-code { font-size: 10px; color: var(--text-2); margin-top: 4px; }

/* ============================================================
   响应式 — 手机端
   ============================================================ */

@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; }
  .app-sidebar {
    position: fixed;
    top: auto; bottom: 0; left: 0; right: 0;
    height: var(--tabbar-h);
    flex-direction: row;
    padding: var(--space-2) var(--space-3);
    border-right: none;
    border-top: 1px solid var(--glass-border);
    /* 锁定在最上层：进入结果页/色号识别页等覆盖页时也常驻可见 */
    z-index: 10000;
    background: rgba(255, 255, 255, 0.92);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.06);
  }
  .brand, .side-footer { display: none; }
  /* 手机端：底部 Tab 栏不显示皮肤切换按钮（节省宽度，避免误触） */
  .side-bottom, .side-theme-btn { display: none !important; }
  .side-nav { flex-direction: row; gap: var(--space-2); justify-content: space-around; width: 100%; }
  .side-nav-item {
    flex-direction: column;
    gap: 2px;
    padding: var(--space-1) var(--space-2);
    font-size: 11px;
  }
  .side-nav-item.active {
    background: var(--accent-soft);
    color: var(--accent);
    box-shadow: none;
  }
  .side-nav-icon { font-size: 20px; }
  .side-nav-label { font-size: 10px; }
  .app-main {
    padding: var(--space-4);
    padding-bottom: calc(var(--tabbar-h) + var(--space-4));
  }
  .page-title { font-size: 22px; }
  .page-header { margin-bottom: var(--space-4); }
  .result-page, .picker-page, .draw-list-page,
  .draw-new-page, .draw-canvas-page, .ai-page {
    left: 0;
    padding-bottom: var(--tabbar-h);
  }
  .result-container, .picker-section { padding: var(--space-3); }
  .miniapp-content { flex-direction: column; text-align: center; gap: var(--space-4); }
  .miniapp-qrcode img { width: 130px; height: 130px; }
  .picker-toolbar { flex-wrap: wrap; gap: var(--space-3); }
  .picker-toolbar-center { order: 3; width: 100%; }
  .draw-toolbar { padding: var(--space-2); }
  .tool-item { min-width: 48px; padding: var(--space-1) var(--space-2); }
  .tool-icon { font-size: 20px; }
  .color-list { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); }
  .records-list { grid-template-columns: 1fr; }
  .palette-mask { align-items: flex-end; }
  .palette-panel { max-height: 75vh; border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
}

@media (max-width: 480px) {
  /* 手机端：内容窄一点居中显示，每个模块本身做大一点，整屏自然填满，顶部留白 */
  .app-main {
    padding-left: var(--space-2);
    padding-right: var(--space-2);
    padding-bottom: var(--tabbar-h);
    padding-top: var(--space-6);    /* 顶部留白：32px */
    max-width: 300px;
    margin: 0 auto;
    box-sizing: border-box;
  }

  /* 容器：常规流式布局，模块之间用 margin 控制（间距适中） */
  .app-main > .container {
    display: block;
  }

  /* 标题居中 */
  .page-header { text-align: center; margin-bottom: var(--space-4); }
  .page-title { font-size: 18px; line-height: 1.2; margin-bottom: 4px; }
  .page-subtitle { font-size: 12px; line-height: 1.3; }

  /* 上传卡：做大一点 */
  .upload-card { padding: var(--space-5) var(--space-3); margin-bottom: var(--space-3); }
  .upload-area { padding: var(--space-5) var(--space-3); }
  .upload-icon { width: 56px; height: 56px; margin-bottom: var(--space-2); }
  .upload-icon .icon-plus { font-size: 28px; }
  .upload-title { font-size: 14px; margin-bottom: 4px; }
  .upload-subtitle { font-size: 11px; line-height: 1.3; }

  /* 各种卡片：内边距更大 */
  .params-card, .feature-section, .miniapp-card { padding: var(--space-4) var(--space-3); }
  .feature-section { margin-top: var(--space-3); margin-bottom: var(--space-3); }
  .feature-grid { grid-template-columns: 1fr 1fr; gap: var(--space-3); }
  .feature-title { font-size: 13px; margin-bottom: var(--space-3); text-align: center; }
  .feature-item { padding: var(--space-3) var(--space-2); }
  .feature-icon { width: 44px; height: 44px; font-size: 22px; margin-bottom: var(--space-1); }
  .feature-name { font-size: 13px; margin-bottom: 2px; }
  .feature-desc { font-size: 11px; line-height: 1.3; }

  /* 按钮 */
  .quick-btn { padding: 4px 8px; font-size: 11px; }
  .btn-primary, .btn-secondary {
    padding: var(--space-3) var(--space-3);
    font-size: 14px;
  }

  /* 底部提示隐藏 */
  .footer-tips { display: none !important; }

  /* 小程序码：做大一点，横向布局 */
  .miniapp-card { margin-top: var(--space-3); padding: var(--space-4) var(--space-3); }
  .miniapp-content {
    flex-direction: row !important;
    text-align: left !important;
    gap: var(--space-3) !important;
    align-items: center;
  }
  .miniapp-text h3 { font-size: 13px; margin-bottom: 2px; }
  .miniapp-text p { font-size: 11px; line-height: 1.3; }
  .miniapp-qrcode img { width: 72px !important; height: 72px !important; }
}

/* Toast */
.toast {
  position: fixed;
  left: 50%;
  top: 24px;
  transform: translateX(-50%);
  padding: 12px 20px;
  background: rgba(26, 26, 46, 0.92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  border-radius: 999px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  z-index: 20000;
  animation: toastIn 0.25s ease;
  pointer-events: none;
}
.toast.success { background: linear-gradient(135deg, #4ECDC4, #44A08D); }
.toast.error { background: linear-gradient(135deg, #e74c3c, #c0392b); }
@keyframes toastIn { from { opacity: 0; transform: translateX(-50%) translateY(-10px); } to { opacity: 1; transform: translateX(-50%) translateY(0); } }

/* 存储警告条 */
.storage-warning {
  background: linear-gradient(135deg, rgba(255, 193, 7, 0.15), rgba(255, 152, 0, 0.1));
  border: 1px solid rgba(255, 152, 0, 0.3);
  border-radius: 12px;
  padding: 12px 16px;
  margin: 16px auto;
  max-width: 1000px;
  font-size: 13px;
  color: #8a5a00;
  line-height: 1.6;
}
.storage-warning b { color: #d97706; }

/* ==============================
   皮肤切换：侧边栏按钮 + 弹窗
   ============================== */
.side-bottom { padding: 0 var(--space-3) var(--space-3); }
.side-theme-btn {
  width: 100%;
  display: flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px 14px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--text-2);
  font-size: 13px;
  transition: all .2s;
}
.side-theme-btn .side-nav-icon { font-size: 16px; }
.side-theme-btn .side-nav-label { flex: none; }
.side-theme-btn:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}

.theme-modal {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(8px);
  z-index: 15000;
  display: flex; align-items: center; justify-content: center;
  padding: var(--space-4);
  animation: fadeIn .2s ease;
}
.theme-modal-content {
  background: var(--glass-bg-strong);
  backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-5);
  width: 100%;
  max-width: 720px;
  max-height: 85vh;
  overflow-y: auto;
}
.theme-modal-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: var(--space-4);
}
.theme-modal-header h2 { font-size: 20px; color: var(--text-1); margin: 0; }
.theme-modal-close {
  background: none; border: none; font-size: 22px; color: var(--text-3);
  cursor: pointer; padding: 4px 10px; border-radius: 8px;
}
.theme-modal-close:hover { background: rgba(0,0,0,0.05); color: var(--text-1); }

.theme-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--space-4);
}
.theme-card {
  cursor: pointer;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  padding: var(--space-2);
  transition: all .2s;
  background: rgba(255,255,255,0.5);
}
.theme-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.theme-card.active { border-color: var(--accent); background: var(--accent-soft); }
.theme-preview {
  height: 100px;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-2);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.05);
}
.theme-preview::after {
  content: '';
  position: absolute;
  left: 12px; top: 14px;
  width: 50%; height: 60%;
  background: rgba(255,255,255,0.6);
  backdrop-filter: blur(6px);
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.7);
}
.theme-preview-default {
  background:
    radial-gradient(circle at 20% 20%, #ffd6e0 0%, transparent 50%),
    radial-gradient(circle at 80% 30%, #c7e9ff 0%, transparent 50%),
    radial-gradient(circle at 50% 80%, #e0d4ff 0%, transparent 50%),
    #f7f9ff;
}
.theme-preview-mint {
  background:
    radial-gradient(circle at 20% 20%, #b8f5d9 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, #a8e6f0 0%, transparent 50%),
    #f0fff8;
}
.theme-preview-sunset {
  background:
    radial-gradient(circle at 20% 30%, #ffd29a 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, #ffb1b1 0%, transparent 50%),
    #fff5ec;
}
.theme-preview-dark {
  background:
    radial-gradient(circle at 30% 30%, #3a3a5e 0%, transparent 60%),
    radial-gradient(circle at 70% 70%, #2a2a4a 0%, transparent 60%),
    #15152a;
}
.theme-preview-dark::after { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.2); }
.theme-preview-minimal { background: #fafafa; border: 1px solid #e0e0e0; }
.theme-preview-minimal::after { background: rgba(255,255,255,0.95); border-color: #e8e8e8; box-shadow: 0 2px 8px rgba(0,0,0,0.04); }
.theme-name { font-size: 13px; text-align: center; color: var(--text-1); padding: 4px 0; }
.theme-default-tag {
  font-size: 10px;
  padding: 1px 6px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 6px;
  margin-left: 4px;
}

/* === 主题：薄荷清新 === */
body.theme-mint {
  --accent: #2ec4a5;
  --accent-2: #4dd9b9;
  --accent-soft: rgba(46,196,165,0.12);
  background:
    radial-gradient(circle at 0% 0%, #b8f5d9 0%, transparent 45%),
    radial-gradient(circle at 100% 50%, #a8e6f0 0%, transparent 45%),
    radial-gradient(circle at 50% 100%, #d4f5d8 0%, transparent 45%),
    #f0fff8;
  background-attachment: fixed;
}

/* === 主题：日落暖橙 === */
body.theme-sunset {
  --accent: #ff7849;
  --accent-2: #ff9a6c;
  --accent-soft: rgba(255,120,73,0.12);
  background:
    radial-gradient(circle at 0% 0%, #ffd29a 0%, transparent 45%),
    radial-gradient(circle at 100% 50%, #ffb1b1 0%, transparent 45%),
    radial-gradient(circle at 50% 100%, #ffe2cc 0%, transparent 45%),
    #fff5ec;
  background-attachment: fixed;
}

/* === 主题：暗夜玻璃 === */
body.theme-dark {
  --accent: #7b8cff;
  --accent-2: #9aa6ff;
  --accent-soft: rgba(123,140,255,0.18);
  --glass-bg: rgba(40,40,60,0.55);
  --glass-bg-strong: rgba(30,30,50,0.85);
  --glass-border: rgba(255,255,255,0.12);
  --text-1: #e8e8f0;
  --text-2: #b8b8c8;
  --text-3: #888898;
  background:
    radial-gradient(circle at 0% 0%, #2a2a4a 0%, transparent 50%),
    radial-gradient(circle at 100% 50%, #3a2a5a 0%, transparent 50%),
    radial-gradient(circle at 50% 100%, #1a2a4a 0%, transparent 50%),
    #15152a;
  background-attachment: fixed;
  color: var(--text-1);
}
body.theme-dark .upload-area { color: var(--text-2); }
body.theme-dark input, body.theme-dark select, body.theme-dark .select-box {
  background: rgba(255,255,255,0.08); color: var(--text-1); border-color: rgba(255,255,255,0.15);
}
body.theme-dark .quick-btn { background: rgba(255,255,255,0.08); color: var(--text-2); }

/* === 主题：极简白 === */
body.theme-minimal {
  --accent: #1a1a2e;
  --accent-2: #4a4a6a;
  --accent-soft: rgba(26,26,46,0.06);
  --glass-bg: rgba(255,255,255,0.9);
  --glass-bg-strong: rgba(255,255,255,1);
  --glass-border: #e8e8ec;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --shadow-md: 0 2px 12px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 28px rgba(0,0,0,0.08);
  background: #fafafa;
  background-attachment: fixed;
}

/* ============================================================
   VIP 徽章 & AI 像素风页
   ============================================================ */

.vip-badge {
  display: inline-flex;
  align-items: center;
  margin-left: 6px;
  padding: 2px 8px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.8px;
  color: #6b4500;
  background: linear-gradient(135deg, #ffe082 0%, #ffd54f 50%, #ffb300 100%);
  border-radius: var(--radius-pill);
  box-shadow: 0 2px 6px rgba(255, 179, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.6);
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.4);
  animation: vipShine 2.4s ease-in-out infinite;
}

@keyframes vipShine {
  0%, 100% { box-shadow: 0 2px 6px rgba(255, 179, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.6); }
  50%      { box-shadow: 0 2px 14px rgba(255, 179, 0, 0.7),  inset 0 1px 0 rgba(255, 255, 255, 0.8); }
}

body.vip-mode .side-nav-item.vip-only {
  position: relative;
}
body.vip-mode .side-nav-item.vip-only::after {
  content: 'VIP';
  position: absolute;
  top: 6px;
  right: 8px;
  font-size: 9px;
  font-weight: 800;
  color: #6b4500;
  background: linear-gradient(135deg, #ffe082, #ffb300);
  padding: 1px 5px;
  border-radius: 6px;
  letter-spacing: 0.5px;
}

/* ---- AI 页面 ---- */

.ai-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-3) var(--space-4) var(--space-5);
}

/* AI 页面左右布局 */
.ai-layout {
  display: flex;
  gap: var(--space-5);
  align-items: flex-start;
}
.ai-left {
  flex: 1;
  min-width: 0;
}
.ai-right {
  width: 420px;
  flex-shrink: 0;
}
.ai-right-sticky {
  position: sticky;
  top: 72px;
}

/* 右栏占位提示 */
.ai-right-placeholder {
  padding: var(--space-5) var(--space-4);
  background: var(--glass-bg-strong);
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  text-align: center;
}
.ai-placeholder-icon {
  font-size: 48px;
  margin-bottom: var(--space-2);
  opacity: 0.5;
}
.ai-placeholder-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 8px;
}
.ai-placeholder-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

@media (max-width: 900px) {
  .ai-layout {
    flex-direction: column;
  }
  .ai-right {
    width: 100%;
  }
  .ai-right-sticky {
    position: static;
  }
  .ai-right-placeholder {
    display: none;
  }
}

.ai-vip-tag {
  display: inline-block;
  margin-left: 6px;
  padding: 2px 7px;
  font-size: 11px;
  font-weight: 800;
  color: #6b4500;
  background: linear-gradient(135deg, #ffe082, #ffb300);
  border-radius: var(--radius-pill);
  vertical-align: middle;
}

.ai-hero {
  text-align: center;
  padding: var(--space-2) var(--space-3) var(--space-3);
  margin-bottom: var(--space-3);
}
.ai-hero-icon {
  font-size: 36px;
  margin-bottom: 4px;
  animation: float 3s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-4px); }
}
.ai-hero-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-1);
  margin: 0 0 4px 0;
  background: linear-gradient(135deg, #FF6B6B 0%, #C77DFF 50%, #4ECDC4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.ai-hero-desc {
  font-size: 12px;
  color: var(--text-2, #666);
  line-height: 1.5;
  margin: 0;
}

.ai-status-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: linear-gradient(135deg, rgba(255, 224, 130, 0.25), rgba(255, 179, 0, 0.12));
  border: 1px solid rgba(255, 179, 0, 0.3);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-5);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.ai-status-icon {
  font-size: 28px;
  animation: spin 4s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.ai-status-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 2px;
}
.ai-status-desc {
  font-size: 13px;
  color: var(--text-2, #666);
  line-height: 1.5;
}

.ai-step { margin-bottom: var(--space-4); }
.ai-section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: var(--space-3);
}
.ai-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px; height: 22px;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  background: var(--accent-grad);
  border-radius: 50%;
}

.ai-styles-section { margin-bottom: var(--space-5); }
.ai-styles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--space-3);
}
.ai-style-item {
  position: relative;
  padding: var(--space-3);
  background: var(--glass-bg-strong);
  border: 2px solid var(--glass-border-soft);
  border-radius: var(--radius-md);
  text-align: center;
  cursor: pointer;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}
.ai-style-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md, 0 6px 20px rgba(31,38,135,0.1));
}
.ai-style-item.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-ring), var(--shadow-md, 0 6px 20px rgba(31,38,135,0.15));
}
.ai-style-item.selected::after {
  content: '✓';
  position: absolute;
  top: 8px; left: 8px;
  width: 22px; height: 22px;
  display: flex; align-items: center; justify-content: center;
  background: var(--accent-grad);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  border-radius: 50%;
}
.ai-style-preview {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-2);
  background: var(--glass-bg-soft);
}
.ai-style-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.ai-style-fallback-text {
  font-size: 14px;
  font-weight: 700;
  color: rgba(0,0,0,0.5);
  letter-spacing: 1px;
}
.ai-style-fallback-1, .ai-style-1 { background: linear-gradient(135deg, #ffd6e0, #c7e9ff); }
.ai-style-fallback-2, .ai-style-2 { background: linear-gradient(135deg, #fdf6b2, #fde68a); }
.ai-style-fallback-3, .ai-style-3 { background: linear-gradient(135deg, #c7e9ff, #e0d4ff); }
.ai-style-fallback-4, .ai-style-4 { background: linear-gradient(135deg, #ffe5ec, #fbcfe8); }
.ai-style-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-1);
}
.ai-style-desc {
  font-size: 11px;
  color: var(--text-2, #888);
  margin-top: 2px;
  line-height: 1.4;
}
.ai-style-tag {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 2px 6px;
  font-size: 10px;
  font-weight: 700;
  color: #fff;
  background: var(--accent-grad);
  border-radius: var(--radius-pill);
}
.ai-style-empty {
  grid-column: 1 / -1;
  padding: var(--space-5);
  text-align: center;
  color: var(--text-2, #888);
  font-size: 13px;
}

.ai-upload-section { margin-bottom: var(--space-5); }
.ai-upload-area {
  position: relative;
  padding: var(--space-4) var(--space-3);
  background: var(--glass-bg-strong);
  border: 2px dashed var(--glass-border-soft);
  border-radius: var(--radius-md);
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  min-height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ai-upload-area:hover, .ai-upload-area.drag-over {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.ai-upload-empty { width: 100%; }
.ai-upload-preview {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ai-upload-preview img {
  max-width: 100%;
  max-height: 320px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md, 0 6px 20px rgba(31,38,135,0.12));
}
.ai-clear-btn {
  position: absolute;
  top: -8px; right: -8px;
  width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center;
  background: #ff4d4f;
  color: #fff;
  border: 2px solid #fff;
  border-radius: 50%;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
.ai-clear-btn:hover { background: #d9363e; }

.ai-action-bar {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}
.ai-generate-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 40px;
  background: var(--accent-grad);
  color: #fff;
  border: none;
  border-radius: var(--radius-pill);
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s, opacity 0.15s;
  box-shadow: 0 4px 16px var(--accent-ring);
}
.ai-generate-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px var(--accent-ring);
}
.ai-generate-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}
.ai-generate-icon { font-size: 18px; }
.ai-quota-tip {
  font-size: 12px;
  color: var(--text-2, #888);
  min-height: 16px;
}

/* ===== AI 生成中 / 结果展示 ===== */
.ai-loading {
  margin: var(--space-4) 0;
  padding: var(--space-5) var(--space-4);
  background: var(--glass-bg-strong);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  text-align: center;
}
.ai-loading-spinner {
  width: 48px; height: 48px; margin: 0 auto var(--space-3);
  border: 4px solid rgba(255,107,107,0.15);
  border-top-color: #FF6B6B;
  border-radius: 50%;
  animation: ai-spin 0.8s linear infinite;
}
@keyframes ai-spin { to { transform: rotate(360deg); } }
.ai-loading-text { font-size: 16px; font-weight: 600; color: var(--text-primary); margin-bottom: 4px; }
.ai-loading-sub { font-size: 12px; color: var(--text-secondary); }

/* 进度条 */
.ai-progress-wrap {
  display: flex; align-items: center; gap: 12px;
  max-width: 360px; margin: 12px auto 8px;
}
.ai-progress-bar {
  flex: 1; height: 10px; border-radius: 999px;
  background: rgba(255,107,107,0.12); overflow: hidden;
}
.ai-progress-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, #FF8E8E, #FF6B6B);
  border-radius: 999px;
  transition: width 0.4s ease-out;
}
.ai-progress-num {
  min-width: 42px; text-align: right;
  font-size: 14px; font-weight: 700; color: #FF6B6B;
  font-variant-numeric: tabular-nums;
}

/* 生成记录 */
.ai-step-num-history { background: linear-gradient(135deg, #6BC1FF, #4A9EFF) !important; }
.ai-history-clear {
  margin-left: auto; padding: 4px 10px;
  font-size: 12px; color: var(--text-secondary);
  background: transparent; border: 1px solid var(--border-color);
  border-radius: 6px; cursor: pointer;
}
.ai-history-clear:hover { color: #FF6B6B; border-color: #FF6B6B; }
.ai-history-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 10px;
}
.ai-history-item {
  position: relative; cursor: pointer;
  border-radius: var(--radius-md); overflow: hidden;
  border: 1px solid var(--border-color);
  background: var(--glass-bg-strong);
  transition: transform .15s, border-color .15s;
}
.ai-history-item:hover { transform: translateY(-2px); border-color: #FF6B6B; }
.ai-history-item img { display: block; width: 100%; aspect-ratio: 1/1; object-fit: cover; }
.ai-history-item .ai-history-meta {
  padding: 4px 6px; font-size: 11px; color: var(--text-secondary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.ai-history-del {
  position: absolute; top: 4px; right: 4px;
  width: 20px; height: 20px; border-radius: 50%;
  background: rgba(0,0,0,0.55); color: #fff; border: none;
  font-size: 12px; line-height: 20px; text-align: center;
  cursor: pointer; opacity: 0; transition: opacity .15s;
}
.ai-history-item:hover .ai-history-del { opacity: 1; }
.ai-history-empty {
  grid-column: 1 / -1;
  padding: 24px 12px; text-align: center;
  font-size: 13px; color: var(--text-secondary);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  background: var(--glass-bg-strong);
}

.ai-result {
  margin: var(--space-4) 0;
  padding: var(--space-4);
  background: var(--glass-bg-strong);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
}
.ai-result-compare {
  display: flex; align-items: center; gap: var(--space-3);
  margin: var(--space-3) 0;
}
.ai-result-col { flex: 1; min-width: 0; text-align: center; }
.ai-result-col img {
  width: 100%; max-height: 360px; object-fit: contain;
  border-radius: var(--radius-md);
  background: rgba(0,0,0,0.05);
  border: 1px solid var(--border-color);
}
.ai-result-label { font-size: 12px; color: var(--text-secondary); margin-bottom: 6px; }
.ai-result-arrow { font-size: 24px; color: #FF6B6B; flex-shrink: 0; }
.ai-result-actions {
  display: flex; gap: var(--space-2); flex-wrap: wrap; margin-top: var(--space-3);
}
.ai-result-btn {
  flex: 1; min-width: 130px;
  padding: 10px 16px; font-size: 14px; font-weight: 600;
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}
.ai-result-btn:hover { transform: translateY(-1px); }
.ai-result-btn-primary {
  background: linear-gradient(135deg, #FF6B6B, #FF8E8E);
  color: #fff; border: none;
  box-shadow: 0 4px 12px rgba(255,107,107,0.25);
}
@media (max-width: 600px) {
  .ai-result-compare { flex-direction: column; }
  .ai-result-arrow { transform: rotate(90deg); }
  .ai-result-btn { min-width: 100%; }
}

.ai-fallback-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border-soft);
  border-radius: var(--radius-md);
}
.ai-fallback-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  color: var(--text-2, #666);
}
.ai-fallback-text strong {
  font-size: 15px;
  color: var(--text-1);
}
.ai-fallback-btn {
  flex-shrink: 0;
  padding: 10px 18px;
  background: var(--accent-grad);
  color: #fff;
  border: none;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}
.ai-fallback-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--accent-ring);
}

@media (max-width: 600px) {
  .ai-container { padding: var(--space-3); }
  .ai-hero-title { font-size: 20px; }
  .ai-hero-icon { font-size: 44px; }
  .ai-styles-grid { grid-template-columns: repeat(2, 1fr); }
  .ai-fallback-card { flex-direction: column; align-items: stretch; text-align: center; }
}

@media (max-width: 1024px) {
  .bead-gallery-grid,
  .bead-gallery-grid-full {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .home-hero {
    min-height: 520px;
  }
  .home-hero::after {
    background: linear-gradient(180deg, rgba(13, 18, 30, 0.86) 0%, rgba(13, 18, 30, 0.58) 48%, rgba(13, 18, 30, 0.08) 100%);
  }
  .home-hero-content {
    padding: 30px 22px;
  }
  .home-hero-title {
    font-size: 30px;
  }
  .home-hero-stats {
    grid-template-columns: 1fr;
  }
  .section-head,
  .gallery-page-head {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .bead-gallery-grid,
  .bead-gallery-grid-full {
    grid-template-columns: 1fr;
  }
}