/* ===== 通联卡片设计器 样式 R5 —— 沉浸式创作工作台 ===== */
/* 视觉方向：深色沉浸式工作台 / 浮层卡片 / 金橙渐变强调 / 舞台光晕 */
:root {
  /* 核心色阶：从深到浅营造空间深度（背景 → 舞台 → 浮层 → 组件） */
  --d-bg: #0f1117;            /* 最底层：整个页面背景 */
  --d-bg-2: #151821;          /* 次底层：舞台边缘、模态底层 */
  --d-panel: #1b1f29;         /* 一级浮层：Rail、Flyout、FX 面板 */
  --d-panel-2: #262b38;       /* 二级浮层：按钮、输入框、卡片 */
  --d-panel-3: #323948;       /* 三级浮层：hover 态、激活轨道 */

  --d-line: rgba(255,255,255,0.07);
  --d-line-strong: rgba(255,255,255,0.14);
  --d-line-glow: rgba(245,166,35,0.28);

  --d-text: #f2f3f6;
  --d-text-2: #c9cdd9;
  --d-muted: #838da0;

  --d-accent: #f5a623;
  --d-accent-fg: #f5a623;       /* 强调作前景文字 on panel（需 AA） */
  --d-accent-on: #1a1200;       /* 强调背景上的深色文字（按钮/选中态） */
  --d-accent-light: #f7c948;
  --d-accent-2: #64b5f6;
  --d-accent-grad: linear-gradient(135deg, var(--d-accent) 0%, var(--d-accent-light) 100%);
  --d-accent-glow: rgba(245,166,35,0.32);
  --d-focus-ring: rgba(245,166,35,0.15);
  --d-overlay: rgba(5,8,14,0.62);

  --d-danger: #ef5350;
  --d-success: #4caf50;

  --d-stage: #0c0e14;
  --d-checker: rgba(255,255,255,0.035);

  --d-glass: rgba(15,17,23,0.80);
  --d-glass-2: rgba(27,31,41,0.90);

  /* 间距 token */
  --sp-xs: 4px;
  --sp-sm: 8px;
  --sp-md: 12px;
  --sp-lg: 16px;
  --sp-xl: 20px;
  --sp-2xl: 24px;
  --sp-3xl: 32px;

  /* 过渡 token */
  --t-fast: 0.12s ease;
  --t-normal: 0.18s var(--ease-out);
  --t-slow: 0.28s var(--ease-out);

  /* z-index 层级 */
  --z-base: 1;
  --z-dropdown: 90;
  --z-sticky: 60;
  --z-overlay: 99990;
  --z-modal: 99995;
  --z-toast: 99999;

  --rail-w: 74px;
  --flyout-w: 262px;
  --fx-w: 280px;
  --top-h: 56px;

  --ease-out: cubic-bezier(.16,1,.3,1);
  --ease-spring: cubic-bezier(.34,1.56,.64,1);

  /* 阴影系统 */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.32);
  --shadow-md: 0 6px 18px rgba(0,0,0,0.38);
  --shadow-lg: 0 16px 42px rgba(0,0,0,0.48);
  --shadow-xl: 0 32px 80px rgba(0,0,0,0.60);
  --shadow-glow: 0 8px 28px var(--d-accent-glow);

  /* 字体阶梯 */
  --text-xs: 12px;
  --text-sm: 13px;
  --text-base: 14px;
  --text-md: 15px;
  --text-lg: 17px;
  --text-xl: 21px;
  --text-2xl: 27px;

  /* 圆角 */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 20px;
  --r-full: 9999px;
}

body.theme-light {
  --d-bg: #e8ebf1;
  --d-bg-2: #eef1f6;
  --d-panel: #ffffff;
  --d-panel-2: #f0f3f8;
  --d-panel-3: #e0e6ef;
  --d-line: rgba(15,23,42,0.07);
  --d-line-strong: rgba(15,23,42,0.14);
  --d-line-glow: rgba(245,166,35,0.22);
  --d-text: #181b22;
  --d-text-2: #3c4352;
  --d-muted: #5c6574;
  --d-accent: #e69400;
  --d-accent-fg: #a86600;       /* 前景文字加深，on 白 panel 对比 4.77 ≥ AA */
  --d-accent-on: #1a1200;       /* 强调背景上的深色文字 */
  --d-accent-light: #f5a623;
  --d-accent-2: #2e86c1;
  --d-accent-grad: linear-gradient(135deg, #f5a623 0%, #f7c948 100%);
  --d-accent-glow: rgba(245,166,35,0.22);
  --d-focus-ring: rgba(245,166,35,0.15);
  --d-overlay: rgba(15,23,42,0.48);
  --d-stage: #dde3eb;
  --d-checker: rgba(15,23,42,0.035);
  --d-glass: rgba(255,255,255,0.84);
  --d-glass-2: rgba(255,255,255,0.95);
  --shadow-sm: 0 1px 3px rgba(15,23,42,0.10);
  --shadow-md: 0 6px 18px rgba(15,23,42,0.13);
  --shadow-lg: 0 16px 42px rgba(15,23,42,0.17);
  --shadow-xl: 0 32px 80px rgba(15,23,42,0.22);
  --shadow-glow: 0 8px 28px var(--d-accent-glow);
}

body.theme-system { /* JS 按 prefers-color-scheme 设具体类 */ }

/* 全局滚动条统一样式 */
.designer ::-webkit-scrollbar { width: 6px; height: 6px; }
.designer ::-webkit-scrollbar-track { background: transparent; }
.designer ::-webkit-scrollbar-thumb { background: var(--d-line-strong); border-radius: 3px; }
.designer ::-webkit-scrollbar-thumb:hover { background: var(--d-muted); }
.designer { scrollbar-width: thin; scrollbar-color: var(--d-line-strong) transparent; }

/* 设计器整体布局 */
html, body { height: 100%; }
body {
  margin: 0; background: var(--d-bg); color: var(--d-text);
  display: flex; flex-direction: column; height: 100vh; overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}
/* flex column 下防止直接子项被内部 nowrap 内容的 min-content 横向撑开页面 */
body > * { min-width: 0; }
/* 全局触控优化：消除移动端 300ms 点击延迟，防止双击缩放干扰 */
button, .ghost-btn, .rail-item, .side-tab, .step, .ctx-item, .cd-btn, [data-action], [data-add], [data-upload], [data-z] { touch-action: manipulation; }
input, select, textarea { touch-action: manipulation; }

/* 顶栏 */
.designer-top {
  display: flex; justify-content: space-between; align-items: center;
  height: var(--top-h); padding: 0 16px; border-bottom: 1px solid var(--d-line);
  background: var(--d-glass); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px); gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand .logo { color: var(--d-accent-fg); font-size: 18px; line-height: 1; }
.brand .title { font-weight: 700; font-size: 15px; letter-spacing: .3px; white-space: nowrap; }
.brand .meta {
  display: flex; align-items: center; gap: 8px; min-width: 0;
  font-size: 12px; color: var(--d-muted); overflow: hidden; white-space: nowrap;
}
.brand .meta b { color: var(--d-text); font-weight: 600; }
.brand .meta .saved { color: var(--sn-success, #4caf50); display: inline-flex; align-items: center; gap: 4px; }
.brand .meta .saved::before { content: "●"; font-size: 8px; }
.top-actions { display: flex; gap: 10px; align-items: center; }
.hist { display: flex; gap: 6px; }
.hist button {
  width: 34px; height: 34px; display: inline-flex; align-items: center; justify-content: center;
  background: var(--d-panel-2); color: var(--d-text); border: 1px solid var(--d-line);
  border-radius: var(--r-sm); cursor: pointer;
  transition: border-color .15s ease, color .15s ease, transform .1s ease, background .15s ease, box-shadow .15s ease;
}
.hist button:hover:not(:disabled) { border-color: var(--d-accent); color: var(--d-accent); box-shadow: var(--shadow-sm); }
.hist button:disabled { opacity: .35; cursor: not-allowed; }
.hist button svg { width: 16px; height: 16px; stroke: currentColor; stroke-width: 1.8; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.ghost-btn {
  background: var(--d-panel-2); color: var(--d-text); border: 1px solid var(--d-line);
  border-radius: var(--r-sm); padding: 7px 12px; font-size: var(--text-base); cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  transition: border-color .15s ease, color .15s ease, background .15s ease, transform .1s ease, box-shadow .15s ease;
}
.ghost-btn:hover { border-color: var(--d-accent); color: var(--d-accent); box-shadow: var(--shadow-sm); }
.ghost-btn:active { transform: scale(.95); }
.ghost-btn svg { width: 16px; height: 16px; stroke: currentColor; stroke-width: 1.8; fill: none; stroke-linecap: round; stroke-linejoin: round; }
#helpBtn { width: 36px; height: 36px; padding: 0; }
.primary-btn {
  background: var(--d-accent-grad); color: var(--d-accent-on); border: 1px solid transparent;
  border-radius: var(--r-sm); padding: 10px 20px; font-size: var(--text-base); font-weight: 700; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  transition: filter .15s ease, transform .1s ease, box-shadow .2s ease;
  box-shadow: var(--shadow-sm);
}
.primary-btn:hover { filter: brightness(1.08); box-shadow: var(--shadow-glow); }
.primary-btn:active { transform: translateY(1px); }
.primary-btn svg { width: 15px; height: 15px; stroke: currentColor; stroke-width: 2.2; fill: none; stroke-linecap: round; stroke-linejoin: round; }
[data-ico-right] svg { order: 1; }

/* 设计器子工具栏（统一导航之下，承载文档信息与上下文操作） */
.dsub {
  position: relative; z-index: 60;
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  height: 46px; padding: 0 16px; flex: 0 0 auto;
  background: var(--d-glass-2); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--d-line);
  box-shadow: inset 0 1px 0 var(--d-line-strong), 0 1px 3px rgba(0,0,0,0.12);
}
.dsub-meta { display: flex; align-items: center; gap: 9px; min-width: 0; font-size: var(--text-sm); color: var(--d-muted); overflow: hidden; white-space: nowrap; }
.dsub-doc b { color: var(--d-text); font-weight: 600; }
.dsub-sep { opacity: .5; }
.dsub-state { display: inline-flex; align-items: center; gap: 5px; padding: 2px 9px; border-radius: var(--r-full); background: var(--d-panel-2); border: 1px solid var(--d-line); font-size: var(--text-xs); color: var(--d-muted); max-width: 280px; overflow: hidden; }
.dsub-state > span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dsub-state::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--d-muted); flex: none; }
.dsub-state.local, .dsub-state.saved { color: var(--d-success); border-color: color-mix(in srgb, var(--d-success) 38%, var(--d-line)); }
.dsub-state.local::before, .dsub-state.saved::before { background: var(--d-success); }
.dsub-state.synced { color: var(--d-accent-2); border-color: color-mix(in srgb, var(--d-accent-2) 38%, var(--d-line)); }
.dsub-state.synced::before { background: var(--d-accent-2); }
.dsub-state.dirty { color: var(--d-accent-fg); border-color: color-mix(in srgb, var(--d-accent) 45%, var(--d-line)); }
.dsub-state.dirty::before { background: var(--d-accent); }
.dsub-state.saving::before { animation: dsub-pulse 1s ease-in-out infinite; }
.dsub-state.failed { color: var(--d-danger); border-color: color-mix(in srgb, var(--d-danger) 38%, var(--d-line)); }
.dsub-state.failed::before { background: var(--d-danger); }
@keyframes dsub-pulse { 0%, 100% { opacity: 1; } 50% { opacity: .3; } }
.dsub-actions { display: flex; align-items: center; gap: 10px; }
.dsub .hist { display: flex; gap: 6px; }
.dsub .hist button {
  width: 36px; height: 36px; display: inline-flex; align-items: center; justify-content: center;
  background: var(--d-panel-2); color: var(--d-text); border: 1px solid var(--d-line); border-radius: var(--r-sm); cursor: pointer;
}
.dsub .hist button:hover:not(:disabled) { border-color: var(--d-accent); color: var(--d-accent); box-shadow: var(--shadow-sm); }
.dsub .hist button:disabled { opacity: .35; cursor: not-allowed; }
.dsub .hist button svg { width: 16px; height: 16px; stroke: currentColor; stroke-width: 1.8; fill: none; stroke-linecap: round; stroke-linejoin: round; }

/* 顶部尺寸芯片（可点击跳转尺寸设置） */
.dsub-size {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 9px; border-radius: var(--r-full);
  background: var(--d-panel-2); border: 1px solid var(--d-line);
  color: var(--d-text); font-size: var(--text-sm); font-weight: 500;
  font-variant-numeric: tabular-nums; cursor: pointer; line-height: 1.2;
  transition: border-color .15s, color .15s;
}
.dsub-size:hover { border-color: var(--d-accent); color: var(--d-accent); }
.dsub-size .dsize-ico { width: 14px; height: 14px; display: inline-flex; }
.dsub-size .dsize-ico svg { width: 14px; height: 14px; stroke: currentColor; stroke-width: 1.8; fill: none; stroke-linecap: round; stroke-linejoin: round; }

/* 顶部：尺寸弹层 + 视图下拉 */
.dd { position: relative; }
.dd-trigger {
  height: 36px; padding: 0 12px; display: inline-flex; align-items: center; gap: 6px;
  background: var(--d-panel-2); color: var(--d-text); border: 1px solid var(--d-line);
  border-radius: var(--r-sm); cursor: pointer; font-size: var(--text-sm);
  transition: border-color .15s, color .15s, box-shadow .15s;
}
.dd-trigger:hover, .dd-trigger[aria-expanded="true"] { border-color: var(--d-accent); color: var(--d-accent); box-shadow: var(--shadow-sm); }
.dd-menu, .size-pop {
  position: absolute; z-index: 90; padding: 12px 14px;
  background: var(--d-panel); border: 1px solid var(--d-line); border-radius: var(--r-md);
  box-shadow: var(--shadow-xl); -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px);
  display: none; min-width: 220px;
}
.dd-menu { top: calc(100% + 8px); right: 0; }
.size-pop { top: calc(100% + 8px); left: 10px; width: 250px; }
.dd-menu.show, .size-pop.show { display: block; }
.dd-menu h4, .size-pop h4 { margin: 0 0 8px; font-size: var(--text-xs); text-transform: uppercase; letter-spacing: .06em; color: var(--d-muted); }
.size-pop select {
  width: 100%; margin-bottom: 8px; background: var(--d-bg); color: var(--d-text);
  border: 1px solid var(--d-line); border-radius: var(--r-sm); padding: 9px 11px;
  font-size: var(--text-base); box-sizing: border-box;
}
.size-pop select:focus { outline: none; border-color: var(--d-accent); box-shadow: 0 0 0 3px var(--d-focus-ring); background: var(--d-panel-2); }

/* 顶部常驻导出组 */
.dsub-export { display: flex; align-items: center; gap: 6px; }
.exp-btn {
  height: 36px; padding: 0 14px; border-radius: var(--r-sm);
  background: var(--d-panel-2); color: var(--d-text);
  border: 1px solid var(--d-line); font-size: var(--text-sm); font-weight: 500; cursor: pointer;
  transition: border-color .15s, color .15s, background .15s, transform .08s, box-shadow .15s;
}
.exp-btn:hover { border-color: var(--d-accent); color: var(--d-accent); box-shadow: var(--shadow-sm); }
.exp-btn:active { transform: translateY(1px); }
.exp-btn.primary { background: var(--d-accent-grad); color: var(--d-accent-on); border-color: transparent; box-shadow: var(--shadow-sm); }
.exp-btn.primary:hover { color: var(--d-accent-on); filter: brightness(1.08); box-shadow: var(--shadow-glow); }
.exp-btn:focus-visible { outline: 2px solid var(--d-accent); outline-offset: 2px; }

/* 画布尺寸徽标（实时叠加在画布左上，尺寸变化即更新） */
.stage-size-badge {
  position: absolute; top: 12px; left: 12px; z-index: 6;
  display: flex; flex-direction: column; gap: 2px;
  padding: 8px 12px; border-radius: var(--r-md);
  background: var(--d-glass-2); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--d-line); box-shadow: var(--shadow-sm), inset 0 1px 0 var(--d-line-strong);
  pointer-events: none; font-variant-numeric: tabular-nums; line-height: 1.25;
}
.stage-size-badge .ssb-trim { color: var(--d-text); font-size: var(--text-sm); font-weight: 600; }
.stage-size-badge .ssb-full { color: var(--d-muted); font-size: var(--text-xs); }

/* 主体：rail + flyout + stage + fx-panel */
.designer {
  display: grid;
  grid-template-columns: var(--rail-w) 0 1fr 0;
  grid-template-areas: "rail flyout stage fx";
  flex: 1 1 auto; min-height: 0;
  background: var(--d-bg);
  transition: grid-template-columns .32s var(--ease-out);
  padding: 10px 12px 12px;
  gap: 10px;
}
.designer.flyout-open { grid-template-columns: var(--rail-w) var(--flyout-w) 1fr 0; }
.designer.fx-open { grid-template-columns: var(--rail-w) 0 1fr var(--fx-w); }
.designer.flyout-open.fx-open { grid-template-columns: var(--rail-w) var(--flyout-w) 1fr var(--fx-w); }
.nav-rail { grid-area: rail; }
.flyout { grid-area: flyout; }
.stage-wrap { grid-area: stage; min-width: 0; }
.fx-panel { grid-area: fx; }

/* 左侧 rail — 悬浮玻璃 Dock */
.nav-rail {
  display: flex; flex-direction: column; align-items: center;
  padding: 10px 8px; gap: 6px; margin: 0;
  background: var(--d-glass-2);
  backdrop-filter: blur(24px) saturate(180%); -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid var(--d-line);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-lg), inset 0 1px 0 var(--d-line-strong), inset 0 -1px 0 rgba(0,0,0,0.15);
  overflow-y: auto; overflow-x: hidden; z-index: 20;
}
.rail-item {
  width: 42px; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 3px; padding: 8px 2px; border-radius: var(--r-md);
  background: transparent; border: 1px solid transparent; color: var(--d-muted);
  cursor: pointer; transition: all .2s var(--ease-out);
  position: relative;
}
.rail-item .icon {
  width: 18px; height: 18px; display: flex; align-items: center; justify-content: center;
}
.rail-item .icon svg { width: 17px; height: 17px; stroke: currentColor; stroke-width: 1.6; fill: none; stroke-linecap: round; stroke-linejoin: round; transition: transform .18s ease; }
.rail-item .lbl { font-size: 10px; font-weight: 500; }
.rail-item:hover { color: var(--d-text); background: var(--d-panel-2); box-shadow: var(--shadow-sm); }
.rail-item:hover .icon svg { transform: translateY(-1px); }
.rail-item.active {
  color: var(--d-accent-on); background: var(--d-accent-grad);
  border-color: transparent;
  box-shadow: var(--shadow-glow), inset 0 1px 0 rgba(255,255,255,0.35);
}
.rail-item.active .icon { color: var(--d-accent-on); }
.rail-item.active .lbl { color: var(--d-accent-on); }
.rail-spacer { flex: 1 1 auto; min-height: 8px; }
.rail-collapse {
  position: sticky; bottom: 2px; margin-top: auto;
  background: var(--d-glass);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-radius: var(--r-md); z-index: 2;
}
.rail-collapse .icon { opacity: .9; }
/* rail 视觉分组分隔 */
.rail-sep { width: 24px; height: 1px; margin: 2px auto; background: var(--d-line-strong); opacity: .5; }

/* 折叠态 */
.designer.rail-collapsed { grid-template-columns: 0 0 1fr 0; }
.designer.rail-collapsed .nav-rail { display: none; }
.designer.rail-collapsed .flyout { display: none; }
.rail-reopen {
  position: fixed; left: 14px; top: 72px; z-index: 60;
  width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center;
  background: var(--d-glass-2); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--d-line); border-radius: var(--r-md); color: var(--d-text); cursor: pointer;
  box-shadow: var(--shadow-lg); transition: all .2s var(--ease-out);
}
.rail-reopen:hover { border-color: var(--d-accent); color: var(--d-accent); transform: translateY(-1px); box-shadow: var(--shadow-glow); }
.rail-reopen svg { width: 18px; height: 18px; stroke: currentColor; stroke-width: 1.7; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.rail-reopen[hidden] { display: none; }

/* 响应式：≤980px 折叠为纵向滚动布局（须位于各组件基样式之后，确保覆盖生效） */
@media (max-width: 980px) {
  body { height: auto; overflow: auto; }
  .designer, .designer.flyout-open, .designer.fx-open, .designer.flyout-open.fx-open {
    grid-template-columns: 1fr; grid-template-rows: auto auto 1fr auto; grid-template-areas: "rail" "flyout" "stage" "fx"; height: auto; flex: none; gap: 8px;
  }
  .nav-rail { flex-direction: row; overflow-x: auto; margin: 0; border-radius: var(--r-lg); }
  .rail-reopen { top: auto; bottom: 14px; }
  /* 窄屏触控目标收敛 */
  .rail-item { min-width: 40px; min-height: 40px; }
  .zoom-ctl { padding: 6px 8px; gap: 6px; }
  .zoom-ctl button { min-width: 44px; min-height: 44px; padding: 10px 14px; }
  .ghost-btn { min-width: 40px; min-height: 40px; }
  /* flyout 在窄屏全宽，避免内容挤压 */
  .flyout, .fx-panel { max-height: 50vh; overflow-y: auto; -webkit-overflow-scrolling: touch; }
  /* 浮动工具条触控增大 */
  .sel-toolbar button { min-width: 40px; min-height: 40px; }
  /* 顶栏紧凑：隐藏 meta 行 */
  .dsub-meta { display: none; }
  .dsub { padding: 0 10px; gap: 8px; }
  .dsub-actions { gap: 6px; }
  .dsub-export .exp-btn { padding: 0 9px; height: 32px; }
}

/* 移动端触控增强（独立媒体查询，位于组件基样式之后，确保覆盖） */
@media (max-width: 980px) {
  .zoom-ctl button { min-width: 44px !important; min-height: 44px !important; }
  .rail-item { min-width: 44px !important; min-height: 44px !important; }
  .ghost-btn { min-width: 40px !important; min-height: 40px !important; }
  .sel-toolbar button { min-width: 40px !important; min-height: 40px !important; }
}

/* 极窄屏（≤480px）：进一步紧凑 */
@media (max-width: 480px) {
  .designer-top { padding: 0 10px; gap: 6px; }
  .brand .title { font-size: 13px; }
  .zoom-ctl { left: 10px; bottom: 10px; }
  #helpBtn { display: none; } /* 腾出顶栏空间给尺寸/导出 */
  .dsub { padding: 0 8px; gap: 6px; }
  .dsub-actions { gap: 4px; }
  .dsub .hist { display: none; } /* 极窄屏撤消/重做收进菜单或手势 */
  .dsub-export .exp-btn { padding: 0 7px; height: 30px; font-size: 12px; }
  .side-tab { padding: 5px 12px; font-size: 13px; }
}

/* 左侧 flyout — 浮层工作表 */
.flyout {
  background: var(--d-panel);
  border: 1px solid var(--d-line);
  border-radius: var(--r-lg);
  overflow-y: auto; overflow-x: hidden;
  box-shadow: var(--shadow-lg), inset 0 1px 0 var(--d-line-strong), inset 0 -1px 0 rgba(0,0,0,0.12);
  opacity: 0; transform: translateX(-12px); pointer-events: none;
  transition: opacity .28s var(--ease-out), transform .28s var(--ease-out);
  will-change: transform, opacity;
}
.designer.flyout-open .flyout { opacity: 1; transform: translateX(0); pointer-events: auto; }
.flyout-pane { display: none; padding: 18px; }
.flyout-pane.active { display: block; animation: fadeIn .22s ease; }
/* 抽屉顶部抓手条：桌面隐藏，仅窄屏浮层显示 */
.sheet-bar { display: none; }
/* 合并「添加」面板：分段切换 */
.add-seg { display: flex; gap: 4px; padding: 4px; margin-bottom: 16px; background: var(--d-bg); border: 1px solid var(--d-line); border-radius: var(--r-md); }
.add-seg-btn { flex: 1; padding: 9px 4px; font-size: var(--text-sm); line-height: 1; color: var(--d-muted); background: transparent; border: none; border-radius: var(--r-sm); cursor: pointer; transition: all .18s var(--ease-out); }
.add-seg-btn:hover { color: var(--d-text); background: var(--d-panel-3); }
.add-seg-btn.on { color: var(--d-accent-on); background: var(--d-accent-grad); font-weight: 600; box-shadow: var(--shadow-glow); }
.add-sub { display: none; }
.add-sub.active { display: block; animation: fadeIn .2s ease; }
.flyout h4 {
  margin: 0 0 10px; font-size: var(--text-xs); color: var(--d-muted); letter-spacing: .7px;
  text-transform: uppercase; font-weight: 700;
}
.flyout h4:not(:first-child) { margin-top: 22px; }
.flyout .sep { height: 1px; background: var(--d-line); margin: 18px 0; }
.flyout select, .flyout button, .flyout .filebtn {
  width: 100%; margin-bottom: 8px; background: var(--d-panel-2); color: var(--d-text);
  border: 1px solid var(--d-line); border-radius: var(--r-sm); padding: 10px 10px; font-size: var(--text-base); cursor: pointer;
  transition: border-color .15s ease, transform .1s ease, background .15s ease, color .15s ease, box-shadow .15s ease;
}
.flyout button:hover, .flyout .filebtn:hover { border-color: var(--d-accent); color: var(--d-accent); background: color-mix(in srgb, var(--d-accent) 8%, var(--d-panel)); box-shadow: var(--shadow-sm); }
.flyout button:active, .flyout .filebtn:active { transform: translateY(1px); }
.flyout button.primary { background: var(--d-accent-grad); color: var(--d-accent-on); border-color: transparent; font-weight: 700; }
.flyout button.primary:hover { filter: brightness(1.08); color: var(--d-accent-on); background: var(--d-accent-grad); box-shadow: var(--shadow-glow); }
.flyout .grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 8px; }
.flyout .grid2 button { margin-bottom: 0; }
/* ---------- 模板画廊 ---------- */
.flyout .tpl-search { width:100%; box-sizing:border-box; padding:10px 12px; margin:0 0 12px; border:1px solid var(--d-line); border-radius:var(--r-sm); background:var(--d-bg); color:var(--d-text); font-size:var(--text-base); outline:none; transition:border-color .15s var(--ease-out), box-shadow .15s ease; }
.flyout .tpl-search:focus { border-color:var(--d-accent); box-shadow: 0 0 0 3px var(--d-focus-ring); }
.flyout .tpl-cats { display:flex; flex-wrap:wrap; gap:6px; margin-bottom:12px; }
.flyout .tpl-cat { padding:6px 12px; border:1px solid var(--d-line); border-radius:var(--r-full); background:var(--d-panel-2); color:var(--d-muted); font-size:var(--text-sm); cursor:pointer; transition:all .15s var(--ease-out); }
.flyout .tpl-cat:hover { border-color:var(--d-accent); color:var(--d-accent); background: color-mix(in srgb, var(--d-accent) 8%, var(--d-panel-2)); }
.flyout .tpl-cat.on { background:var(--d-accent-grad); border-color:transparent; color:var(--d-accent-on); font-weight:700; box-shadow: var(--shadow-sm); }
.flyout .tpl-grid { display:grid; grid-template-columns:1fr 1fr; gap:10px; }
.flyout .tpl-card { position:relative; display:flex; flex-direction:column; gap:6px; padding:6px; border:1px solid var(--d-line); border-radius:var(--r-md); background:var(--d-panel-2); cursor:pointer; transition:transform .18s var(--ease-out), border-color .18s var(--ease-out), box-shadow .18s var(--ease-out); }
.flyout .tpl-card:hover { transform:translateY(-3px) scale(1.02); border-color:var(--d-accent); box-shadow:var(--shadow-md); }
.flyout .tpl-card .tpl-thumb { display:block; width:100%; aspect-ratio:140/90; border-radius:var(--r-sm); overflow:hidden; background:var(--d-panel); border:1px solid var(--d-line); }
.flyout .tpl-card .tpl-thumb img { width:100%; height:100%; display:block; object-fit:contain; }
.flyout .tpl-card .tpl-name { font-size:var(--text-xs); color:var(--d-text); text-align:center; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.flyout .tpl-card .tpl-del { position:absolute; top:-8px; right:-8px; width:20px; height:20px; border-radius:50%; border:1px solid var(--d-line); background:var(--d-bg); color:var(--d-muted); font-size:14px; line-height:18px; cursor:pointer; display:none; }
.flyout .tpl-card.design:hover .tpl-del { display:block; }
.flyout .tpl-card .tpl-del:hover { border-color:var(--d-danger); color:var(--d-danger); }
.flyout .tpl-empty { grid-column:1/-1; font-size:var(--text-sm); color:var(--d-muted); text-align:center; padding:14px 0; }
.flyout button.ghost { background:transparent; border:1px dashed var(--d-line); color:var(--d-muted); }
/* 三列网格 */
.flyout .grid3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; margin-bottom: 8px; }
.flyout .grid3 button { margin-bottom: 0; }
/* 危险操作 */
.flyout button.danger { color: var(--d-danger); border-color: color-mix(in srgb, var(--d-danger) 42%, var(--d-line)); }
.flyout button.danger:hover { background: rgba(239,83,80,.10); border-color: var(--d-danger); color: var(--d-danger); }
/* 图层面板 */
.flyout .layer-arrange { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-bottom: 12px; }
.flyout .layer-arrange button {
  width: 100%; margin: 0; box-sizing: border-box; background: var(--d-panel-2); color: var(--d-text);
  border: 1px solid var(--d-line); border-radius: var(--r-sm); padding: 9px; font-size: var(--text-sm); cursor: pointer;
  transition: border-color .15s ease, color .15s ease, background .15s ease, box-shadow .15s ease;
}
.flyout .layer-arrange button:hover:not(:disabled) { border-color: var(--d-accent); color: var(--d-accent); background: color-mix(in srgb, var(--d-accent) 8%, var(--d-panel)); box-shadow: var(--shadow-sm); }
.flyout .layer-arrange button:disabled { opacity: .35; cursor: not-allowed; }
.flyout button.ghost:hover { border-color:var(--d-accent); color:var(--d-accent); background: color-mix(in srgb, var(--d-accent) 6%, transparent); }
.flyout button.wide { width:100%; box-sizing:border-box; margin-top:8px; }

/* 表单字段统一 */
.field { margin-bottom: 12px; }
.field label { display: flex; justify-content: space-between; align-items: center; font-size: var(--text-xs); color: var(--d-muted); margin-bottom: 5px; font-weight: 500; }
.field label .val { color: var(--d-text); font-variant-numeric: tabular-nums; }
.field input, .field select, .field textarea {
  width: 100%; background: var(--d-bg); color: var(--d-text); border: 1px solid var(--d-line);
  border-radius: var(--r-sm); padding: 9px 11px; font-size: var(--text-base); box-sizing: border-box;
  transition: border-color .15s ease, box-shadow .15s ease, background .15s ease;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--d-accent); box-shadow: 0 0 0 3px var(--d-focus-ring); background: var(--d-panel-2); }
.field textarea { resize: vertical; min-height: 54px; }
/* 滑块重置：防止 .field input 的 border/padding 影响range */
.field input[type=range] { padding: 0; height: 6px; -webkit-appearance: none; appearance: none; background: var(--d-line); cursor: pointer; border: none; border-radius: var(--r-full); }
.field input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 16px; height: 16px; border-radius: 50%; background: var(--d-accent); border: 3px solid var(--d-panel); box-shadow: 0 1px 5px rgba(0,0,0,.35); transition: transform .12s ease; }
.field input[type=range]::-webkit-slider-thumb:hover { transform: scale(1.15); }
.field input[type=range]::-moz-range-thumb { width: 16px; height: 16px; border-radius: 50%; background: var(--d-accent); border: 3px solid var(--d-panel); box-shadow: 0 1px 5px rgba(0,0,0,.35); }
.field .input-row { display: flex; align-items: stretch; }
.field .input-row input, .field .input-row select { flex: 1; border-radius: var(--r-sm) 0 0 var(--r-sm); border-right: none; }
.field .input-row .unit {
  display: flex; align-items: center; padding: 0 10px; background: var(--d-panel-2);
  border: 1px solid var(--d-line); border-left: none; border-radius: 0 var(--r-sm) var(--r-sm) 0;
  font-size: var(--text-xs); color: var(--d-muted);
}
.field.color input[type=color] { width: 100%; height: 38px; padding: 3px; cursor: pointer; border: 1px solid var(--d-line); border-radius: var(--r-sm); background: var(--d-bg); box-shadow: inset 0 0 0 1px rgba(255,255,255,.10); box-sizing: border-box; }

/* 自定义复选框 */
.chk {
  display: inline-flex; align-items: center; gap: 8px;
  cursor: pointer; user-select: none;
  font-size: var(--text-sm); color: var(--d-text);
}
.chk input { position: absolute; opacity: 0; width: 0; height: 0; }
.chk .box {
  width: 16px; height: 16px; border-radius: 5px; border: 1px solid var(--d-muted);
  background: var(--d-panel-2); display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; transition: all .15s ease;
  box-shadow: inset 0 1px 2px rgba(0,0,0,.15);
}
.chk:hover .box { border-color: var(--d-accent); }
.chk .box::after {
  content: ""; width: 7px; height: 4px; border-left: 2px solid var(--d-accent-on); border-bottom: 2px solid var(--d-accent-on);
  transform: rotate(-45deg) translateY(-1px); opacity: 0; transition: opacity .12s ease;
}
.chk input:checked + .box { background: var(--d-accent-grad); border-color: transparent; box-shadow: none; }
.chk input:checked + .box::after { opacity: 1; }
.chk .txt { white-space: nowrap; }

/* 修复 .props 内 label.chk */
.props label.chk {
  display: inline-flex; justify-content: flex-start; align-items: center;
  margin: 6px 0 12px; font-size: var(--text-sm); color: var(--d-text); font-weight: 500;
  cursor: pointer; user-select: none;
}
.props label.chk .box { border-color: var(--d-line-strong); background: var(--d-panel-2); box-shadow: inset 0 1px 2px rgba(0,0,0,.15); }
.props label.chk:hover .box { border-color: var(--d-accent); }
.props label.chk input:checked + .box { box-shadow: none; }

/* Switch */
.switch-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 0; cursor: pointer; user-select: none;
}
.switch-row input { position: absolute; opacity: 0; width: 0; height: 0; }
.switch-row .txt { font-size: var(--text-sm); color: var(--d-text); }
.switch-row .track {
  width: 38px; height: 20px; border-radius: var(--r-full); background: var(--d-line);
  position: relative; flex-shrink: 0; transition: background .2s ease;
}
.switch-row .track::after {
  content: ""; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px;
  border-radius: 50%; background: var(--d-text); box-shadow: 0 1px 3px rgba(0,0,0,.25);
  transition: left .2s cubic-bezier(.16,1,.3,1);
}
.switch-row input:checked + .track { background: var(--d-accent); }
.switch-row input:checked + .track::after { left: 20px; }

.flyout .hint { font-size: var(--text-xs); color: var(--d-muted); line-height: 1.55; margin: 6px 0 0; }
.canvas-size { font-size: var(--text-sm); color: var(--d-muted); margin: -4px 0 10px; }
.custom-size { margin-top: 10px; padding: 12px; background: var(--d-bg); border: 1px solid var(--d-line); border-radius: var(--r-md); }
.custom-size .cs-tip { font-size: var(--text-xs); color: var(--d-muted); display: block; margin-bottom: 8px; }
.custom-size .cs-row { display: flex; gap: 8px; margin-bottom: 8px; }
.custom-size .cs-field { flex: 1; display: flex; align-items: center; gap: 5px; font-size: var(--text-sm); color: var(--d-muted); }
.custom-size .cs-field input { width: 100%; min-width: 0; padding: 8px 9px; border-radius: var(--r-sm); border: 1px solid var(--d-line); background: var(--d-panel-2); color: var(--d-text); font-size: var(--text-base); }
.custom-size .cs-field input:focus { outline: none; border-color: var(--d-accent); box-shadow: 0 0 0 3px var(--d-focus-ring); }
.custom-size .cs-field .unit { font-size: var(--text-xs); color: var(--d-muted); }
.quick-fields { display: flex; gap: 8px; }
.quick-fields button { flex: 1; margin-bottom: 0; }

/* 画布区 — 舞台光晕 + 棋盘格 */
.stage-wrap {
  background: var(--d-stage);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 20px; overflow: auto; position: relative;
  border: 1px solid var(--d-line);
  border-radius: var(--r-lg);
  box-shadow: inset 0 0 100px rgba(0,0,0,0.38), var(--shadow-lg);
  background-image:
    radial-gradient(ellipse 80% 55% at 50% 28%, rgba(245,166,35,0.05), transparent),
    radial-gradient(ellipse 65% 45% at 50% 85%, rgba(100,181,246,0.04), transparent),
    linear-gradient(45deg, var(--d-checker) 25%, transparent 25%),
    linear-gradient(-45deg, var(--d-checker) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, var(--d-checker) 75%),
    linear-gradient(-45deg, transparent 75%, var(--d-checker) 75%);
  background-size: 100% 100%, 100% 100%, 24px 24px, 24px 24px, 24px 24px, 24px 24px;
  background-position: 0 0, 0 0, 0 0, 0 12px, 12px -12px, -12px 0;
}
#stage { box-shadow: 0 20px 56px rgba(0,0,0,0.50), 0 0 0 1px rgba(255,255,255,0.06); border-radius: 4px; overflow: hidden; transition: box-shadow var(--t-normal); touch-action: none; }
.stage-wrap { scroll-behavior: auto; overscroll-behavior: contain; -webkit-overflow-scrolling: touch; }
.stage-wrap.drag-over { outline: 2px dashed var(--d-accent); outline-offset: -8px; }
.stage-wrap.drag-over::after {
  content: '松开以添加图片'; position: absolute; inset: 0; display: flex;
  align-items: center; justify-content: center; font-size: 15px; font-weight: 600; color: var(--d-accent);
  background: var(--d-focus-ring); border-radius: var(--r-lg); pointer-events: none;
}
.zoom-ctl {
  position: absolute; left: 18px; bottom: 18px; z-index: 5;
  display: flex; align-items: center; gap: 4px;
  background: var(--d-glass-2); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--d-line); border-radius: var(--r-md);
  padding: 5px 6px; font-size: var(--text-sm); color: var(--d-muted);
  box-shadow: var(--shadow-md), inset 0 1px 0 var(--d-line-strong);
}
.zoom-ctl button {
  width: auto; min-width: 36px; min-height: 36px; margin: 0; padding: 8px 12px; background: transparent;
  color: var(--d-text); border: 1px solid transparent; border-radius: 7px;
  font-size: var(--text-base); cursor: pointer; line-height: 1; transition: background .15s ease, color .15s ease, box-shadow .15s ease;
  display: inline-flex; align-items: center; justify-content: center; gap: 4px;
}
.zoom-ctl button svg { width: 15px; height: 15px; stroke: currentColor; stroke-width: 2; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.zoom-ctl button:hover { background: var(--d-panel-2); color: var(--d-accent); }
.zoom-ctl #zoomVal { min-width: 44px; text-align: center; font-variant-numeric: tabular-nums; color: var(--d-text); font-weight: 500; }
.dstatus {
  position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%); z-index: 5;
  font-size: var(--text-xs); color: var(--d-muted);
  background: var(--d-glass); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--d-line); border-radius: var(--r-full);
  padding: 7px 16px; box-shadow: var(--shadow-md);
  max-width: calc(100% - 260px); white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  transition: opacity .2s ease;
}

/* 右侧效果面板 */
.fx-panel {
  background: var(--d-panel); border: 1px solid var(--d-line); border-radius: var(--r-lg);
  display: flex; flex-direction: column; overflow: hidden;
  box-shadow: var(--shadow-lg), inset 0 1px 0 var(--d-line-strong), inset 0 -1px 0 rgba(0,0,0,0.12);
  opacity: 0; transform: translateX(12px); pointer-events: none;
  transition: opacity .28s var(--ease-out), transform .28s var(--ease-out);
  will-change: transform, opacity;
}
.designer.fx-open .fx-panel { opacity: 1; transform: translateX(0); pointer-events: auto; }
.fx-head {
  position: sticky; top: 0; z-index: 3;
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 16px;
  background: var(--d-panel);
  border-bottom: 1px solid var(--d-line);
  box-shadow: inset 0 1px 0 var(--d-line-strong), 0 1px 3px rgba(0,0,0,0.10);
}
.fx-head h4 { margin: 0; font-size: var(--text-md); font-weight: 700; color: var(--d-text); letter-spacing: .3px; display: flex; align-items: center; gap: 8px; }
.fx-head h4::before { content: ''; width: 3px; height: 16px; border-radius: 2px; background: var(--d-accent-grad); box-shadow: 0 0 6px var(--d-accent-glow); }
#closeFx {
  width: 30px; height: 30px; display: flex; align-items: center; justify-content: center;
  background: var(--d-panel-2); border: 1px solid var(--d-line); border-radius: var(--r-sm);
  color: var(--d-muted); font-size: 18px; cursor: pointer;
  transition: background .15s ease, color .15s ease, border-color .15s ease, transform .12s ease;
}
#closeFx svg { width: 16px; height: 16px; stroke: currentColor; stroke-width: 2; fill: none; stroke-linecap: round; stroke-linejoin: round; }
#closeFx:hover { background: var(--d-panel-3); color: var(--d-text); border-color: var(--d-accent); }
#closeFx:active { transform: scale(.9); }
#props { flex: 1; overflow-y: auto; padding: 0; }
/* 自定义滚动条 */
#props::-webkit-scrollbar { width: 6px; }
#props::-webkit-scrollbar-track { background: transparent; }
#props::-webkit-scrollbar-thumb { background: var(--d-line-strong); border-radius: 3px; }
#props::-webkit-scrollbar-thumb:hover { background: var(--d-muted); }

/* 属性表单 */
.props { padding: 14px; }
.empty-props {
  padding: 48px 20px; text-align: center; font-size: var(--text-base); color: var(--d-muted); line-height: 1.7;
}
.prop-group {
  background: var(--d-bg);
  border: 1px solid var(--d-line);
  border-radius: var(--r-md);
  padding: 14px;
  margin-bottom: 12px;
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.10);
}
.prop-group:last-child { margin-bottom: 0; }
.pg-title {
  display: flex; align-items: center; gap: 7px;
  font-size: var(--text-xs); color: var(--d-accent); font-weight: 700;
  letter-spacing: .6px; margin: 0 0 14px; text-transform: uppercase;
}
.pg-title::before {
  content: ''; width: 3px; height: 13px; border-radius: 2px;
  background: var(--d-accent-grad); display: inline-block; box-shadow: 0 0 6px var(--d-accent-glow);
}
.props .field { margin-bottom: 11px; }
.props .field:last-child { margin-bottom: 0; }
.props label { display: flex; justify-content: space-between; align-items: center; font-size: var(--text-xs); color: var(--d-text-2); margin-bottom: 5px; font-weight: 600; }
.props label .val { color: var(--d-accent-fg); font-variant-numeric: tabular-nums; font-weight: 500; }
.props input[type=text], .props input[type=number], .props select, .props textarea, .props input[type=range] {
  width: 100%; background: var(--d-bg); color: var(--d-text); border: 1px solid var(--d-line);
  border-radius: var(--r-sm); padding: 9px 11px; font-size: var(--text-base); box-sizing: border-box;
  transition: border-color .15s ease, box-shadow .15s ease, background .15s ease;
}
.props input:focus, .props select:focus, .props textarea:focus { outline: none; border-color: var(--d-accent); box-shadow: 0 0 0 3px var(--d-focus-ring); background: var(--d-panel-2); }
.props textarea { resize: vertical; min-height: 48px; line-height: 1.5; }
.props input[type=range] { padding: 0; height: 6px; -webkit-appearance: none; appearance: none; background: var(--d-line); cursor: pointer; border: none; border-radius: var(--r-full); }
.props input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 16px; height: 16px; border-radius: 50%; background: var(--d-accent); border: 3px solid var(--d-panel); box-shadow: 0 1px 5px rgba(0,0,0,.35); transition: transform .12s ease; }
.props input[type=range]::-webkit-slider-thumb:hover { transform: scale(1.15); }
.props input[type=range]::-moz-range-thumb { width: 16px; height: 16px; border-radius: 50%; background: var(--d-accent); border: 3px solid var(--d-panel); box-shadow: 0 1px 5px rgba(0,0,0,.35); }
.props input[type=color] { width: 100%; height: 38px; padding: 3px; cursor: pointer; }
.props .input-row { display: flex; align-items: stretch; }
.props .input-row input, .props .input-row select { flex: 1; border-radius: var(--r-sm) 0 0 var(--r-sm); border-right: none; }
.props .input-row .unit {
  display: flex; align-items: center; padding: 0 11px; background: var(--d-panel-2);
  border: 1px solid var(--d-line); border-left: none; border-radius: 0 var(--r-sm) var(--r-sm) 0;
  font-size: var(--text-xs); color: var(--d-text-2); font-weight: 600; min-width: 36px; justify-content: center;
}
.props .color-row { display: flex; gap: 8px; align-items: stretch; }
.props .color-row input[type=color] {
  flex: 1; border-radius: var(--r-sm); min-width: 0; border: 1px solid var(--d-line);
  background: var(--d-bg); box-shadow: inset 0 0 0 1px rgba(255,255,255,.10); box-sizing: border-box; cursor: pointer;
  transition: border-color .15s ease;
}
.props .color-row input[type=color]:hover { border-color: var(--d-accent); }
.props .color-row .hex {
  width: 74px; text-align: center; font-size: var(--text-sm);
  background: var(--d-bg); color: var(--d-text);
  border: 1px solid var(--d-line); border-radius: var(--r-sm);
  padding: 8px 0; font-variant-numeric: tabular-nums; font-weight: 500;
  display: flex; align-items: center; justify-content: center;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.props .color-row .hex:focus { outline: none; border-color: var(--d-accent); box-shadow: 0 0 0 3px var(--d-focus-ring); }
.props .chk { margin: 6px 0 12px; }
.props .range-row .range-wrap { display: flex; align-items: center; gap: 12px; }
.props .range-row input[type=range] { flex: 1; }
.props .range-row .val { font-size: var(--text-xs); color: var(--d-text); min-width: 38px; text-align: right; font-variant-numeric: tabular-nums; font-weight: 600; }
.props .validation {
  font-size: var(--text-xs); line-height: 1.55; padding: 9px 11px; border-radius: var(--r-sm); margin-bottom: 12px;
  display: flex; align-items: flex-start; gap: 7px; font-weight: 500;
}
.props .validation::before { content: ""; flex-shrink: 0; width: 14px; height: 14px; margin-top: 1px; }
.props .validation.ok { color: var(--d-success); background: rgba(76,175,80,.10); border: 1px solid rgba(76,175,80,.20); }
.props .validation.ok::before { content: "✓"; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; }
.props .validation.err { color: var(--d-danger); background: rgba(239,83,80,.10); border: 1px solid rgba(239,83,80,.20); }
.props .validation.err::before { content: "!"; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; }
.props .validation:empty { display: none; }

/* 双列字段网格 */
.props .grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.props .grid2 .field { margin-bottom: 0; }

/* 字体选择器 */
.props .font-field { position: relative; }
.props .font-trigger {
  width: 100%; display: flex; align-items: center; gap: 9px;
  background: var(--d-bg); color: var(--d-text);
  border: 1px solid var(--d-line); border-radius: var(--r-sm);
  padding: 10px 11px; cursor: pointer; text-align: left;
  transition: border-color .15s ease, box-shadow .15s ease, background .15s ease;
}
.props .font-trigger:hover { border-color: var(--d-accent); background: color-mix(in srgb, var(--d-accent) 4%, var(--d-bg)); }
.props .font-trigger[aria-expanded=true] { border-color: var(--d-accent); box-shadow: 0 0 0 3px var(--d-focus-ring); background: var(--d-panel-2); }
.props .font-trigger .ff-sample { font-size: 18px; line-height: 1; flex: 0 0 auto; color: var(--d-text); }
.props .font-trigger .ff-name { flex: 1; font-size: var(--text-sm); color: var(--d-text-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.props .font-trigger .ff-caret { flex: 0 0 auto; width: 16px; height: 16px; color: var(--d-muted); display: inline-flex; transition: transform .2s ease; }
.props .font-trigger[aria-expanded=true] .ff-caret { transform: rotate(180deg); }
.props .font-trigger .ff-caret svg { width: 16px; height: 16px; stroke: currentColor; stroke-width: 2; fill: none; stroke-linecap: round; stroke-linejoin: round; }

.props .font-pop {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0; z-index: 20;
  background: var(--d-panel); border: 1px solid var(--d-line-strong); border-radius: var(--r-md);
  box-shadow: var(--shadow-xl), inset 0 1px 0 var(--d-line-strong);
  max-height: 322px; overflow-y: auto; padding: 8px;
}
.props .font-pop::-webkit-scrollbar { width: 5px; }
.props .font-pop::-webkit-scrollbar-track { background: transparent; }
.props .font-pop::-webkit-scrollbar-thumb { background: var(--d-line-strong); border-radius: 3px; }
.props .font-pop[hidden] { display: none; }
.props .ff-search {
  width: 100%; box-sizing: border-box; margin-bottom: 8px;
  background: var(--d-bg); color: var(--d-text); border: 1px solid var(--d-line);
  border-radius: var(--r-sm); padding: 9px 10px; font-size: var(--text-base);
  transition: border-color .15s ease, box-shadow .15s ease;
}
.props .ff-search:focus { outline: none; border-color: var(--d-accent); box-shadow: 0 0 0 3px var(--d-focus-ring); }
.props .ff-group { margin-bottom: 4px; }
.props .ff-gtitle {
  font-size: var(--text-xs); font-weight: 700; color: var(--d-muted); text-transform: uppercase; letter-spacing: .6px;
  padding: 8px 6px 5px;
}
.props .ff-opt {
  width: 100%; display: flex; flex-direction: column; gap: 2px; align-items: flex-start;
  background: transparent; border: 1px solid transparent; border-radius: var(--r-sm);
  padding: 8px 10px; cursor: pointer; text-align: left; color: var(--d-text);
  transition: background .12s ease, border-color .12s ease;
}
.props .ff-opt:hover { background: var(--d-bg); border-color: var(--d-line); }
.props .ff-opt.on { background: rgba(245,166,35,.12); border-color: rgba(245,166,35,.38); }
.props .ff-opt-name { font-size: var(--text-base); line-height: 1.2; }
.props .ff-opt-sample { font-size: var(--text-sm); color: var(--d-muted); line-height: 1.2; }

/* 图层 */
.layers { list-style: none; margin: 0; padding: 0; }
.layers li {
  display: flex; align-items: center; justify-content: space-between; gap: 6px;
  padding: 10px 12px; border: 1px solid var(--d-line); border-radius: var(--r-sm); margin-bottom: 6px;
  font-size: var(--text-sm); background: var(--d-bg); cursor: pointer;
  transition: border-color .15s ease, background .15s ease, box-shadow .15s ease;
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.08);
}
.layers li:hover { background: var(--d-panel-2); border-color: var(--d-line-strong); box-shadow: var(--shadow-sm); }
.layers li.active { border-color: var(--d-accent); background: rgba(245,166,35,.08); color: var(--d-text); box-shadow: 0 0 0 1px var(--d-line-glow); }
.layers li .nm { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.layers li .acts { display: flex; align-items: center; gap: 4px; flex-shrink: 0; }
.layers li .acts .mini {
  width: auto; margin: 0; padding: 3px 5px; font-size: var(--text-sm); background: transparent;
  border: none; cursor: pointer; line-height: 1; color: var(--d-muted); border-radius: 6px;
  transition: background .15s ease, color .15s ease;
}
.layers li .acts .mini:hover { background: var(--d-panel-2); color: var(--d-text); }
.layers li .acts .mini:active { transform: scale(.88); }
.layers li .acts .mini svg { width: 15px; height: 15px; stroke: currentColor; stroke-width: 1.8; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.layers li .acts .mini.on { color: var(--d-accent); }
.layers li.locked { opacity: .7; }
.layers li.locked .nm { text-decoration: line-through; }
.layers li.invalid { border-color: var(--d-danger); }
.layers li.invalid .lk { color: var(--d-danger); }

/* Toast */
.toast { position: fixed; top: 70px; right: 18px; z-index: 99999; display: flex; flex-direction: column; gap: 8px; align-items: flex-end; pointer-events: none; }
.toast .t {
  background: var(--d-glass-2); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--d-line); border-left: 3px solid var(--d-accent);
  color: var(--d-text); font-size: var(--text-base); padding: 10px 14px; border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  opacity: 0; transform: translateX(12px);
  transition: opacity .2s ease, transform .2s ease; max-width: 340px;
}
.toast .t.show { opacity: 1; transform: translateX(0); }
.toast .t.ok { border-left-color: var(--d-success); }
.toast .t.warn { border-left-color: var(--d-accent); }
.toast .t.err { border-left-color: var(--d-danger); }
.toast .t.tip { border-left-color: var(--d-accent-2); }

/* 选区浮动工具条 */
.sel-toolbar {
  position: fixed; z-index: 9998; gap: 2px; padding: 5px; display: flex;
  background: var(--d-glass-2);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border: 1px solid var(--d-line); border-radius: var(--r-md);
  box-shadow: var(--shadow-lg), inset 0 1px 0 var(--d-line-strong); transform: translateX(-50%);
  opacity: 0; visibility: hidden; transition: opacity .15s ease, visibility .15s ease;
  will-change: opacity, transform, left, top;
}
.sel-toolbar.show { opacity: 1; visibility: visible; }
.sel-toolbar button {
  width: 34px; height: 34px; display: inline-flex; align-items: center; justify-content: center;
  background: transparent; color: var(--d-text); border: none; border-radius: 7px;
  font-size: 15px; cursor: pointer; touch-action: manipulation;
  transition: background .15s ease, transform .12s ease, color .15s ease;
}
.sel-toolbar button svg { width: 17px; height: 17px; stroke: currentColor; stroke-width: 1.8; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.sel-toolbar button:hover { background: var(--d-accent-grad); color: var(--d-accent-on); transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.sel-toolbar .sep { width: 1px; margin: 4px 2px; background: var(--d-line); align-self: stretch; }

/* CMYK 软打样 */
.stage-wrap.cmyk-proof { filter: saturate(0.9) contrast(1.03) brightness(0.97); }

@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

/* 品牌 Logo */
.brand .logo { color: var(--d-accent-fg); display: inline-flex; align-items: center; justify-content: center; }
.brand .logo svg { width: 22px; height: 22px; stroke: var(--d-accent); stroke-width: 1.6; fill: none; stroke-linecap: round; stroke-linejoin: round; }

/* 焦点可见性 */
:focus-visible { outline: 2px solid var(--d-accent); outline-offset: 2px; border-radius: var(--r-sm); }
.rail-item:focus-visible, .ghost-btn:focus-visible, .hist button:focus-visible, .zoom-ctl button:focus-visible { outline-offset: 2px; }
input:focus-visible, select:focus-visible, textarea:focus-visible { outline: none; }
.layers li:focus-visible { outline: 2px solid var(--d-accent); outline-offset: 1px; }

/* 新手引导 */
.onboard { position: fixed; inset: 0; z-index: 99990; display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transition: opacity .25s ease, visibility .25s ease; }
.onboard.show { opacity: 1; visibility: visible; }
.onboard-backdrop { position: absolute; inset: 0; background: var(--d-overlay); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
.onboard-card {
  position: relative; width: min(440px, calc(100vw - 40px)); background: var(--d-panel);
  border: 1px solid var(--d-line-strong); border-radius: var(--r-xl); padding: 30px;
  box-shadow: var(--shadow-xl); transform: translateY(8px) scale(.98);
  transition: transform .3s cubic-bezier(.16,1,.3,1);
}
.onboard.show .onboard-card { transform: translateY(0) scale(1); }
.onboard-art { height: 130px; border-radius: var(--r-md); background: var(--d-accent-grad); border: 1px solid transparent; margin-bottom: 22px; display: flex; align-items: center; justify-content: center; overflow: hidden; position: relative; }
.onboard-art::before {
  content: ''; position: absolute; inset: 0; background:
    radial-gradient(circle at 25% 30%, rgba(255,255,255,.22), transparent 35%),
    radial-gradient(circle at 80% 80%, rgba(0,0,0,.12), transparent 40%);
}
.onboard-art svg { width: 64px; height: 64px; stroke: var(--d-accent-on); stroke-width: 1.6; fill: none; stroke-linecap: round; stroke-linejoin: round; position: relative; z-index: 1; }
.onboard-step { font-size: var(--text-xs); letter-spacing: .8px; text-transform: uppercase; color: var(--d-muted); font-weight: 700; margin-bottom: 6px; }
.onboard-card h2 { margin: 0 0 10px; font-size: var(--text-xl); color: var(--d-text); letter-spacing: .2px; }
.onboard-card p { margin: 0 0 20px; font-size: var(--text-md); line-height: 1.65; color: var(--d-muted); }
.onboard-dots { display: flex; gap: 7px; margin-bottom: 22px; }
.onboard-dots i { width: 7px; height: 7px; border-radius: 50%; background: var(--d-line); transition: background .2s ease, width .2s ease; }
.onboard-dots i.active { width: 20px; border-radius: 4px; background: var(--d-accent); }
.onboard-actions { display: flex; gap: 10px; justify-content: space-between; align-items: center; }

/* 引导式起点：模板 / 空白 选择卡 */
.start-card { width: min(560px, calc(100vw - 40px)); padding: 30px; }
.start-choices { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 6px 0 22px; }
.start-choice {
  display: flex; flex-direction: column; align-items: flex-start; gap: 10px;
  padding: 22px; border-radius: var(--r-lg); cursor: pointer; text-align: left;
  background: var(--d-panel-2); border: 1px solid var(--d-line); color: var(--d-text);
  transition: transform .25s var(--ease-out), border-color .2s ease, box-shadow .25s ease, background .2s ease;
  box-shadow: var(--shadow-sm);
}
.start-choice:hover { transform: translateY(-4px) scale(1.015); border-color: var(--d-accent); box-shadow: var(--shadow-lg), 0 0 0 1px var(--d-line-glow); background: color-mix(in srgb, var(--d-accent) 6%, var(--d-panel-2)); }
.start-choice:active { transform: translateY(-1px) scale(.99); }
.sc-ico { width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; border-radius: var(--r-md); background: var(--d-accent-grad); color: var(--d-accent-on); box-shadow: var(--shadow-sm); }
.sc-ico svg { width: 24px; height: 24px; stroke: var(--d-accent-on); stroke-width: 1.6; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.sc-label { font-size: var(--text-lg); font-weight: 700; color: var(--d-text); }
.sc-desc { font-size: var(--text-sm); line-height: 1.55; color: var(--d-muted); }
@media (max-width: 560px) {
  .start-choices { grid-template-columns: 1fr; }
}

/* 步骤条 ribbon（引导式操作流程） */
.step-ribbon {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 16px; margin: 8px 18px 0;
  background: var(--d-glass-2);
  -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px);
  border: 1px solid var(--d-line);
  border-radius: var(--r-full);
  box-shadow: var(--shadow-md), inset 0 1px 0 var(--d-line-strong);
  position: relative; z-index: 20; overflow-x: auto;
}
.step-ribbon.dismissed { display: none; }
.ribbon-title { font-size: var(--text-xs); letter-spacing: .7px; text-transform: uppercase; color: var(--d-muted); font-weight: 700; margin-right: 4px; white-space: nowrap; }
.step {
  display: inline-flex; align-items: center; gap: 7px; padding: 7px 14px; border-radius: var(--r-full);
  border: 1px solid var(--d-line); background: var(--d-panel); color: var(--d-muted);
  cursor: pointer; white-space: nowrap; font-size: var(--text-sm); font-weight: 600;
  transition: transform .2s var(--ease-out), border-color .2s ease, color .2s ease, background .2s ease, box-shadow .2s ease;
}
.step:hover { transform: translateY(-1px); border-color: var(--d-accent); color: var(--d-text); box-shadow: var(--shadow-sm); }
.step:active { transform: scale(.94); }
.step.active { transform: scale(.96); background: color-mix(in srgb, var(--d-accent) 18%, var(--d-panel)); color: var(--d-text); border-color: var(--d-accent); }
.step.done { border-color: var(--d-accent); color: var(--d-text); background: color-mix(in srgb, var(--d-accent) 10%, transparent); }
.step.done .step-ico { color: var(--d-accent); }
.step.done::after { content: "✓"; font-size: 11px; color: var(--d-accent); margin-left: 2px; font-weight: 700; }
.step.current { border-color: var(--d-accent); color: var(--d-accent-fg); background: color-mix(in srgb, var(--d-accent) 14%, transparent); box-shadow: 0 0 0 2px var(--d-accent-glow); animation: step-pulse 2s ease-in-out infinite; }
.step.current .step-ico { color: var(--d-accent); }
@keyframes step-pulse { 0%, 100% { box-shadow: 0 0 0 2px var(--d-accent-glow); } 50% { box-shadow: 0 0 0 4px color-mix(in srgb, var(--d-accent-glow) 50%, transparent); } }
.step-ico { width: 18px; height: 18px; display: inline-flex; align-items: center; justify-content: center; color: var(--d-muted); }
.step-ico svg { width: 18px; height: 18px; stroke: currentColor; stroke-width: 1.6; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.step-sep { flex: 0 0 14px; height: 1px; background: var(--d-line-strong); position: relative; }
.step-sep::after { content: ""; position: absolute; right: -1px; top: 50%; transform: translateY(-50%); border-left: 4px solid var(--d-line-strong); border-top: 3px solid transparent; border-bottom: 3px solid transparent; }
.ribbon-state { margin-left: auto; font-size: var(--text-sm); color: var(--d-accent-fg); font-weight: 700; white-space: nowrap; }
.ribbon-dismiss { flex: 0 0 auto; width: 26px; height: 26px; border-radius: 50%; border: 1px solid var(--d-line); background: transparent; color: var(--d-muted); cursor: pointer; display: inline-flex; align-items: center; justify-content: center; transition: color .2s, border-color .2s, background .2s; }
.ribbon-dismiss:hover { color: var(--d-text); border-color: var(--d-accent); background: var(--d-panel); }
.ribbon-dismiss svg { width: 14px; height: 14px; stroke: currentColor; stroke-width: 1.8; fill: none; stroke-linecap: round; }
.designer.preview-mode .nav-rail { opacity: .45; pointer-events: none; transition: opacity .25s ease; }
.designer.preview-mode .flyout { opacity: .45; pointer-events: none; transition: opacity .25s ease; }

/* 主题切换平滑过渡 */
body, .d-panel, .d-rail, .flyout, .flyout-pane, .onboard-card, .start-card, .mini-map, .sel-toolbar, .zoom-ctl, .dstatus {
  transition: background-color .35s ease, border-color .35s ease, color .35s ease;
}

/* 磁吸按钮（premium 微交互） */
.magnetic { transition: transform .25s var(--ease-out), box-shadow .25s ease; will-change: transform; }

/* 画布空状态提示 */
.canvas-empty {
  position: absolute; inset: 0; display: none; flex-direction: column; align-items: center; justify-content: center;
  gap: 10px; pointer-events: none; text-align: center; padding: 20px; z-index: 5;
}
.canvas-empty.show { display: flex; animation: ceFade .35s ease; }
@keyframes ceFade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.ce-ico { width: 54px; height: 54px; display: flex; align-items: center; justify-content: center; border-radius: var(--r-lg); background: var(--d-accent-grad); color: var(--d-accent-on); box-shadow: var(--shadow-glow); }
.ce-ico svg { width: 28px; height: 28px; stroke: var(--d-accent-on); stroke-width: 1.5; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.ce-title { font-size: var(--text-lg); font-weight: 700; color: var(--d-text); }
.ce-hint { font-size: var(--text-sm); color: var(--d-muted); max-width: 320px; line-height: 1.6; }
/* 空状态行动按钮：容器保持 pointer-events:none（点击空白处仍穿透到画布），仅按钮可点击 */
.canvas-empty .ce-cta-row { display: flex; gap: 10px; margin-top: 4px; pointer-events: auto; flex-wrap: wrap; justify-content: center; }
.canvas-empty .ce-cta {
  min-height: 42px; padding: 0 22px; border-radius: var(--r-md);
  background: var(--d-panel-2); color: var(--d-text); border: 1px solid var(--d-line);
  font-size: var(--text-base); font-weight: 600; cursor: pointer;
  transition: border-color .15s ease, color .15s ease, background .15s ease, transform .1s ease, box-shadow .15s ease;
}
.canvas-empty .ce-cta:hover { border-color: var(--d-accent); color: var(--d-accent); box-shadow: var(--shadow-sm); }
.canvas-empty .ce-cta:active { transform: translateY(1px); }
.canvas-empty .ce-cta.primary { background: var(--d-accent-grad); color: var(--d-accent-on); border-color: transparent; }
.canvas-empty .ce-cta.primary:hover { filter: brightness(1.08); color: var(--d-accent-on); box-shadow: var(--shadow-glow); }
.canvas-empty .ce-cta:focus-visible { outline: 2px solid var(--d-accent); outline-offset: 2px; }
/* 抽屉/面板打开时隐藏空状态提示，避免互相遮挡 */
.designer.flyout-open .canvas-empty,
.designer.fx-open .canvas-empty { display: none !important; }

/* 画布缩略导航 mini-map */
.mini-map {
  position: absolute; right: 14px; bottom: 44px; width: 132px; height: 84px;
  background: var(--d-glass-2); border: 1px solid var(--d-line);
  border-radius: var(--r-md); box-shadow: var(--shadow-lg), inset 0 1px 0 var(--d-line-strong); overflow: hidden; z-index: 6;
  padding: 4px; display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}
.mini-map .mm-card { position: relative; background: var(--d-panel); outline: 1px solid rgba(0,0,0,.25); }
.mini-map .mm-el { position: absolute; background: rgba(245,166,35,.55); }
@media (max-width: 640px) { .mini-map { display: none; } }
@media (max-width: 640px) {
  .ribbon-title { display: none; }
  .step-lbl { display: none; }
  .step { padding: 6px 9px; flex-shrink: 0; }
  .step-ribbon { margin: 6px 10px 0; overflow-x: auto; -webkit-overflow-scrolling: touch; flex-wrap: nowrap; }
  .step-sep { flex-shrink: 0; }
  .designer { padding: 8px; }
}

/* 快捷键清单 */
.sc-overlay { position: fixed; inset: 0; z-index: 99992; display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transition: opacity .2s ease, visibility .2s ease; }
.sc-overlay.show { opacity: 1; visibility: visible; }
.sc-backdrop { position: absolute; inset: 0; background: var(--d-overlay); -webkit-backdrop-filter: blur(5px); backdrop-filter: blur(5px); }
.sc-card { position: relative; width: min(420px, calc(100vw - 40px)); background: var(--d-panel); border: 1px solid var(--d-line-strong); border-radius: var(--r-lg); padding: 20px; box-shadow: var(--shadow-xl); }
.sc-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.sc-head h3 { margin: 0; font-size: var(--text-lg); color: var(--d-text); }
.sc-close { width: 30px; height: 30px; display: flex; align-items: center; justify-content: center; background: var(--d-panel-2); border: 1px solid var(--d-line); border-radius: var(--r-sm); color: var(--d-muted); cursor: pointer; transition: background .15s ease, color .15s ease, border-color .15s ease; }
.sc-close svg { width: 16px; height: 16px; stroke: currentColor; stroke-width: 2; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.sc-close:hover { background: var(--d-panel-3); color: var(--d-text); border-color: var(--d-accent); }
.sc-list { list-style: none; margin: 0; padding: 0; }
.sc-list li { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--d-line); font-size: var(--text-base); color: var(--d-text); }
.sc-list li:last-child { border-bottom: none; }
.sc-list .keys { display: flex; gap: 4px; flex-shrink: 0; flex-wrap: wrap; justify-content: flex-end; }
.sc-k { display: inline-flex; align-items: center; justify-content: center; min-width: 22px; height: 22px; padding: 0 6px; font-size: var(--text-xs); font-weight: 600; color: var(--d-text); background: var(--d-panel-2); border: 1px solid var(--d-line); border-radius: 6px; box-shadow: 0 1px 0 var(--d-line); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}

/* 正反面双画布标签 */
.side-tabs { display: inline-flex; gap: 4px; padding: 4px; margin-bottom: 12px; background: var(--d-panel); border: 1px solid var(--d-line); border-radius: var(--r-full); box-shadow: var(--shadow-md); }
.side-tab { appearance: none; border: none; background: transparent; color: var(--d-muted); font-size: var(--text-base); font-weight: 600; padding: 7px 20px; border-radius: var(--r-full); cursor: pointer; transition: background .18s var(--ease-out), color .18s var(--ease-out); }
.side-tab:hover { color: var(--d-text); }
.side-tab:active { transform: scale(.94); }
.side-tab.active { background: var(--d-accent-grad); color: var(--d-accent-on); box-shadow: var(--shadow-glow); }
.side-tab:focus-visible { outline: 2px solid var(--d-accent); outline-offset: 2px; }

/* 账号区 */
.account { display: flex; align-items: center; gap: 8px; }
.acct-email { font-size: var(--text-sm); color: var(--d-text); max-width: 130px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; cursor: pointer; padding: 4px 8px; border-radius: var(--r-sm); border: 1px solid var(--d-line); background: var(--d-panel); }
.acct-email:hover { border-color: var(--d-accent); }
.brand a.title { color: var(--d-text); text-decoration: none; cursor: pointer; }
.brand a.title:hover { color: var(--d-accent); }
.nav-mini { font-size: var(--text-base); color: var(--d-muted); padding: 6px 10px; border-radius: var(--r-sm); transition: .18s var(--ease-out); white-space: nowrap; }
.nav-mini:hover { background: var(--d-panel-2); color: var(--d-text); }
.nav-mini.admin { color: var(--d-accent-fg); border: 1px solid var(--d-line-glow); }
#shareDesign.active { background: var(--d-accent-grad); color: var(--d-accent-on); border-color: transparent; border-style: solid; }
#shareDesign.active:hover { filter: brightness(1.06); border-color: transparent; }

/* 主题化确认弹窗（替代原生 confirm，统一沉浸式质感） */
.confirm-overlay { position: fixed; inset: 0; z-index: 99995; display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transition: opacity .2s ease, visibility .2s ease; }
.confirm-overlay.show { opacity: 1; visibility: visible; }
.confirm-backdrop { position: absolute; inset: 0; background: var(--d-overlay); backdrop-filter: blur(5px); -webkit-backdrop-filter: blur(5px); }
.confirm-card { position: relative; width: min(380px, calc(100vw - 36px)); background: var(--d-panel); border: 1px solid var(--d-line-strong); border-radius: var(--r-lg); padding: 22px; box-shadow: var(--shadow-xl); transform: translateY(8px) scale(.98); transition: transform .25s var(--ease-out); }
.confirm-overlay.show .confirm-card { transform: translateY(0) scale(1); }
.confirm-card h3 { margin: 0 0 10px; font-size: var(--text-lg); color: var(--d-text); letter-spacing: .2px; }
.confirm-body { margin: 0 0 20px; font-size: var(--text-md); line-height: 1.6; color: var(--d-muted); }
.id-input { width: 100%; box-sizing: border-box; margin: 0 0 18px; padding: 10px 13px; border-radius: var(--r-sm); border: 1px solid var(--d-line); background: var(--d-panel-2); color: var(--d-text); font-size: var(--text-base); transition: border-color .15s ease, box-shadow .15s ease; }
.id-input:focus { outline: none; border-color: var(--d-accent); box-shadow: 0 0 0 3px var(--d-accent-glow); }
.confirm-actions { display: flex; gap: 10px; justify-content: flex-end; }
.cd-btn { height: 38px; padding: 0 18px; border-radius: var(--r-sm); border: 1px solid var(--d-line); background: var(--d-panel-2); color: var(--d-text); font-size: var(--text-base); font-weight: 600; cursor: pointer; transition: border-color .15s ease, color .15s ease, background .15s ease, filter .15s ease, transform .1s ease; }
.cd-btn:hover { border-color: var(--d-accent); color: var(--d-accent); }
.cd-btn:active { transform: translateY(1px); }
.cd-btn.primary { background: var(--d-accent-grad); color: var(--d-accent-on); border-color: transparent; }
.cd-btn.primary:hover { filter: brightness(1.08); color: var(--d-accent-on); box-shadow: var(--shadow-glow); }
.cd-btn.danger { background: var(--d-danger); color: #fff; border-color: transparent; }
.cd-btn.danger:hover { filter: brightness(1.08); color: #fff; }
.cd-btn:focus-visible { outline: 2px solid var(--d-accent); outline-offset: 2px; }

/* 导出加载遮罩 */
.export-overlay .confirm-card { text-align: center; }
.export-card { width: min(320px, calc(100vw - 36px)); }
.export-spinner { width: 36px; height: 36px; margin: 0 auto 16px; border-radius: 50%; border: 3px solid var(--d-line); border-top-color: var(--d-accent); animation: exp-spin .7s linear infinite; }
@keyframes exp-spin { to { transform: rotate(360deg); } }
.export-card h3 { margin-bottom: 6px; }
.export-card .confirm-body { margin-bottom: 0; font-size: var(--text-sm); }

/* 正反面切换过渡 */
.side-tab { position: relative; overflow: hidden; }
.side-tab.switching::after { content: ""; position: absolute; inset: 0; background: var(--d-accent-glow); animation: side-flash .4s ease-out; }
@keyframes side-flash { from { opacity: .6; } to { opacity: 0; } }

/* 右键上下文菜单 */
.ctx-menu { position: fixed; z-index: 99998; min-width: 180px; background: var(--d-panel); border: 1px solid var(--d-line-strong); border-radius: var(--r-md); padding: 5px; box-shadow: var(--shadow-xl); opacity: 0; transform: scale(.96) translateY(-4px); transition: opacity .12s ease, transform .12s var(--ease-out); will-change: transform, opacity; }
.ctx-menu.show { opacity: 1; transform: scale(1) translateY(0); }
.ctx-item { display: flex; align-items: center; gap: 8px; width: 100%; padding: 7px 10px; border: none; background: transparent; color: var(--d-text); font-size: var(--text-sm); border-radius: var(--r-sm); cursor: pointer; transition: background .1s ease, color .1s ease; text-align: left; }
.ctx-item:hover { background: color-mix(in srgb, var(--d-accent) 14%, transparent); color: var(--d-text); }
.ctx-item:active { background: color-mix(in srgb, var(--d-accent) 22%, transparent); }
.ctx-item.disabled { opacity: .38; cursor: default; }
.ctx-item.disabled:hover { background: transparent; }
.ctx-item.danger { color: var(--d-danger); }
.ctx-item.danger:hover { background: color-mix(in srgb, var(--d-danger) 14%, transparent); }
.ctx-ico { width: 16px; height: 16px; display: inline-flex; align-items: center; justify-content: center; color: var(--d-muted); flex: none; }
.ctx-ico svg { width: 16px; height: 16px; stroke: currentColor; stroke-width: 1.6; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.ctx-lbl { flex: 1; }
.ctx-key { font-size: var(--text-xs); color: var(--d-muted); white-space: nowrap; }
.ctx-sep { height: 1px; background: var(--d-line); margin: 4px 6px; }

/* 通用素材网格 */
.flyout .mat-filters { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.flyout .mat-filter { padding: 6px 11px; border: 1px solid var(--d-line); border-radius: var(--r-full); background: var(--d-panel-2); color: var(--d-muted); font-size: var(--text-sm); cursor: pointer; transition: all .15s var(--ease-out); width: auto; flex: 0 0 auto; }
.flyout .mat-filter:hover { border-color: var(--d-accent); color: var(--d-accent); background: color-mix(in srgb, var(--d-accent) 8%, var(--d-panel-2)); }
.flyout .mat-filter.on { background: var(--d-accent-grad); border-color: transparent; color: var(--d-accent-on); font-weight: 600; }
.flyout .mat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.flyout .mat-card { display: flex; flex-direction: column; gap: 6px; padding: 6px; border: 1px solid var(--d-line); border-radius: var(--r-md); background: var(--d-panel-2); cursor: pointer; transition: transform .16s var(--ease-out), border-color .16s var(--ease-out), box-shadow .16s var(--ease-out); position: relative; }
.flyout .mat-card:hover { transform: translateY(-3px); border-color: var(--d-accent); box-shadow: var(--shadow-md); }
.flyout .mat-thumb { display: block; width: 100%; aspect-ratio: 1; border-radius: var(--r-sm); overflow: hidden; background: linear-gradient(135deg, var(--d-panel) 60%, var(--d-panel-3)); border: 1px solid var(--d-line); }
.flyout .mat-thumb img, .flyout .mat-thumb svg { width: 100%; height: 100%; object-fit: contain; }
.flyout .mat-name { font-size: var(--text-sm); font-weight: 500; color: var(--d-text); text-align: center; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; padding: 0 2px; }
.flyout .mat-badge { position: absolute; top: 7px; left: 7px; font-size: 10px; font-weight: 700; padding: 2px 5px; border-radius: 4px; background: var(--d-glass); color: var(--d-accent); border: 1px solid var(--d-line); pointer-events: none; }
.flyout .mat-badge.svg { color: var(--d-accent-2); }

@media (max-width: 640px) {
  .side-tab { padding: 6px 14px; font-size: var(--text-sm); }
  .account { gap: 4px; }
}

/* ===== 移动端（≤820px）：画布全屏 + 浮层抽屉 ===== */
@media (max-width: 820px) {
  body { height: 100vh; overflow: hidden; }
  #stepRibbon, #ribbonToggle { display: none !important; } /* 引导条让位画布 */

  /* 主体：仅画布占满视口，rail/flyout/fx 全部浮层覆盖 */
  .designer,
  .designer.flyout-open,
  .designer.fx-open,
  .designer.flyout-open.fx-open {
    display: flex; flex-direction: column; flex: 1 1 auto; min-height: 0;
    position: relative; padding: 0; gap: 0;
  }
  .stage-wrap {
    position: absolute; inset: 0 0 calc(56px + env(safe-area-inset-bottom)) 0;
    padding: 8px; height: auto;
  }

  /* 左侧 rail → 底部工具条（固定底，安全区适配） */
  .nav-rail {
    position: fixed; left: 0; right: 0; bottom: 0; top: auto; z-index: 50;
    flex-direction: row; justify-content: space-around; align-items: center;
    gap: 4px; margin: 0; padding: 6px 8px calc(6px + env(safe-area-inset-bottom));
    height: calc(56px + env(safe-area-inset-bottom)); box-sizing: border-box;
    border-radius: 18px 18px 0 0; border-bottom: none;
    overflow-x: auto; overflow-y: hidden;
  }
  .rail-sep, .rail-spacer, .rail-collapse { display: none !important; }
  .rail-item {
    flex: 1 1 0; min-width: 40px; min-height: 40px; max-width: 60px;
    border-radius: var(--r-md); padding: 5px 2px;
  }
  .rail-item .icon svg { width: 19px; height: 19px; }
  .rail-item .lbl { font-size: 10px; }
  /* 底部工具条 active 态：轻量高亮，避免整颗按钮全黄显得臃肿 */
  .rail-item.active {
    color: var(--d-accent); background: rgba(245,166,35,.12);
    border-color: rgba(245,166,35,.35); box-shadow: none;
  }
  .rail-item.active .icon { color: var(--d-accent); }
  .rail-item.active .lbl { color: var(--d-accent); }
  .rail-reopen { display: none !important; }

  /* flyout → 底部上滑 sheet */
  .flyout {
    position: fixed; left: 0; right: 0; bottom: 0; top: auto; z-index: 55;
    max-height: 82vh; border-radius: 18px 18px 0 0; border-bottom: none;
    opacity: 1; transform: translateY(100%); pointer-events: none;
    transition: transform .3s var(--ease-out);
    padding: 0 12px calc(14px + env(safe-area-inset-bottom));
    box-shadow: 0 -14px 44px rgba(0,0,0,.42);
  }
  .designer.flyout-open .flyout { transform: translateY(0); pointer-events: auto; }
  .flyout-pane { padding: 14px 4px 0; }

  /* fx-panel → 右侧滑入 sheet */
  .fx-panel {
    position: fixed; right: 0; top: 0; bottom: 0; left: auto; z-index: 56;
    width: min(380px, 88vw); border-radius: 0; border-left: 1px solid var(--d-line);
    opacity: 1; transform: translateX(100%); pointer-events: none;
    transition: transform .3s var(--ease-out);
    box-shadow: -14px 0 44px rgba(0,0,0,.42);
  }
  .designer.fx-open .fx-panel { transform: translateX(0); pointer-events: auto; }

  /* 抽屉顶部抓手条（窄屏可见，点击收起） */
  .sheet-bar {
    display: flex; position: sticky; top: 0; align-items: center; justify-content: center;
    padding: 10px 0 8px; margin: 0 -12px 6px; cursor: pointer;
    background: var(--d-panel); z-index: 2;
  }
  .sheet-grip { width: 42px; height: 5px; border-radius: 3px; background: var(--d-line-strong); }
  .sheet-close {
    position: absolute; right: 10px; top: 8px; width: 32px; height: 32px; display: inline-flex;
    align-items: center; justify-content: center; border: none; background: var(--d-panel-2);
    color: var(--d-muted); border-radius: var(--r-sm); cursor: pointer;
  }
  .sheet-close svg { width: 16px; height: 16px; stroke: currentColor; stroke-width: 1.8; fill: none; stroke-linecap: round; stroke-linejoin: round; }

  /* 画布浮动控件 */
  .stage-size-badge {
    top: 8px; left: 8px; padding: 4px 8px;
    flex-direction: row; align-items: baseline; gap: 4px;
  }
  .stage-size-badge .ssb-trim { display: none; }
  .stage-size-badge .ssb-full { font-size: 11px; color: var(--d-text); font-weight: 600; }
  .side-tabs { position: absolute; top: 8px; left: 50%; transform: translateX(-50%); z-index: 40; margin: 0; }
  /* 缩放控件挪到右下角并避开底部 rail，避免与工具条重叠 */
  .zoom-ctl {
    right: 10px; bottom: calc(62px + env(safe-area-inset-bottom)); left: auto;
    padding: 3px 4px; gap: 2px; border-radius: var(--r-md);
  }
  .zoom-ctl button { min-width: 34px; min-height: 34px; padding: 6px 8px; }
  .zoom-ctl #zoomVal { min-width: 38px; font-size: 11px; }
  .sel-toolbar { z-index: 45; }
  .dstatus { display: none; }       /* 移动端省空间 */
  .mini-map { display: none; }
  /* 空状态提示在手机上更紧凑，避免占满画布中央 */
  .canvas-empty {
    inset: auto; top: 42%; left: 50%; transform: translate(-50%, -50%);
    width: min(280px, calc(100% - 40px)); padding: 18px;
    background: var(--d-glass-2); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
    border: 1px solid var(--d-line); border-radius: var(--r-lg);
    box-shadow: var(--shadow-lg);
  }
  .canvas-empty .ce-ico { width: 42px; height: 42px; border-radius: var(--r-md); }
  .canvas-empty .ce-ico svg { width: 22px; height: 22px; }
  .canvas-empty .ce-title { font-size: var(--text-md); }
  .canvas-empty .ce-hint { font-size: var(--text-xs); max-width: 100%; }
}