:root {
  color-scheme: light;
  --page: #f5efe6;
  --page-wash: #fffaf4;
  --page-ink: #201712;
  --surface: rgba(255, 252, 247, 0.88);
  --surface-strong: #fffdfa;
  --line: rgba(67, 39, 24, 0.12);
  --line-strong: rgba(67, 39, 24, 0.22);
  --muted: #756456;
  --accent: #c76a2d;
  --accent-deep: #8f4419;
  --accent-soft: #f8d5b8;
  --forest: #234438;
  --editor: #181411;
  --editor-grid: rgba(255, 255, 255, 0.06);
  --editor-text: #f7efe3;
  --shadow-card: 0 20px 60px rgba(65, 33, 16, 0.1);
  --shadow-stage: 0 28px 68px rgba(51, 31, 18, 0.12);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  color: var(--page-ink);
  background:
    radial-gradient(circle at top left, rgba(199, 106, 45, 0.18), transparent 26%),
    radial-gradient(circle at top right, rgba(35, 68, 56, 0.11), transparent 28%),
    linear-gradient(140deg, rgba(255, 255, 255, 0.7), rgba(250, 241, 232, 0.92)),
    var(--page);
  font-family: "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

body[data-drawer-open="true"] {
  overflow: hidden;
}

button,
textarea,
a {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 16px;
  padding: 18px;
}

.topbar,
.style-ribbon,
.canvas-pane,
.theme-drawer-panel {
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(18px);
}

.topbar,
.style-ribbon {
  border-radius: var(--radius-xl);
  background: var(--surface);
}

.topbar {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto;
  gap: 18px;
  align-items: center;
  padding: 18px 20px;
}

.product {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.product-mark {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 20px;
  color: #fff7ef;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent 50%),
    linear-gradient(145deg, var(--accent), var(--accent-deep));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35), 0 16px 30px rgba(143, 68, 25, 0.26);
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: 24px;
  font-weight: 900;
}

.product-copy h1,
.product-copy p,
.pane-title strong,
.pane-title span,
.theme-copy strong,
.theme-copy small,
.theme-drawer-header h2,
.theme-drawer-header p {
  margin: 0;
}

.product-copy {
  display: grid;
  gap: 4px;
}

.product-copy h1 {
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: 26px;
  line-height: 1.05;
}

.product-copy p,
.save-pill,
.metric-pill,
.brand-pill,
.pane-title span,
.wechat-header,
.theme-card small,
.theme-meta,
.drawer-kicker,
.current-theme-badge {
  color: var(--muted);
  font-size: 12px;
}

.session-bar,
.style-ribbon-actions,
.tool-row,
.view-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.session-bar {
  justify-content: flex-end;
}

.save-pill,
.metric-pill,
.current-theme-badge {
  height: 36px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.68);
  white-space: nowrap;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--forest);
  box-shadow: 0 0 0 5px rgba(35, 68, 56, 0.12);
}

.primary-button,
.ghost-button,
.x-button {
  height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  transition: transform 140ms ease, box-shadow 140ms ease, background 140ms ease;
}

.primary-button:hover,
.ghost-button:hover,
.x-button:hover,
.quick-theme-pill:hover,
.theme-card:hover,
.tool-button:hover,
.view-button:hover,
.filter-chip:hover {
  transform: translateY(-1px);
}

.primary-button {
  color: #fff8ef;
  border-color: var(--accent-deep);
  background: linear-gradient(180deg, var(--accent), var(--accent-deep));
  box-shadow: 0 12px 26px rgba(143, 68, 25, 0.16);
}

.ghost-button {
  color: var(--page-ink);
  background: rgba(255, 255, 255, 0.74);
}

.x-button {
  color: #f7fbff;
  border-color: #0e6ab8;
  background: linear-gradient(180deg, #2aafff, #0e7dd9);
  box-shadow: 0 12px 26px rgba(14, 125, 217, 0.18);
}

.style-ribbon {
  display: grid;
  grid-template-columns: auto minmax(240px, auto) minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 12px 16px;
}

.style-ribbon-head {
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

.style-ribbon-label,
.style-ribbon-count,
.drawer-kicker {
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 800;
  color: var(--accent-deep);
}

.theme-drawer-header h2 {
  font-family: "Noto Serif SC", "Songti SC", serif;
}

.theme-quick-strip {
  min-height: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  overflow: auto;
  padding-bottom: 2px;
}

.quick-theme-pill,
.theme-card,
.filter-chip,
.tool-button,
.view-button {
  border: 1px solid transparent;
}

.quick-theme-pill {
  height: 36px;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  text-align: left;
  transition: transform 140ms ease, box-shadow 140ms ease, border-color 140ms ease;
}

.quick-theme-pill[data-active="true"],
.theme-card[data-active="true"] {
  border-color: rgba(199, 106, 45, 0.28);
  box-shadow: 0 14px 28px rgba(68, 34, 18, 0.08);
}

.quick-theme-pill .swatch {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.45);
  background:
    linear-gradient(var(--swatch-accent), var(--swatch-accent)),
    var(--swatch-bg);
}

.quick-theme-pill strong {
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}

.style-ribbon-actions {
  justify-content: flex-end;
  white-space: nowrap;
}

.editor-stack .style-ribbon {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas:
    "head"
    "filters"
    "actions";
  gap: 10px;
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 0;
  box-shadow: none;
  backdrop-filter: none;
  background:
    linear-gradient(90deg, rgba(199, 106, 45, 0.18), transparent 46%),
    rgba(26, 21, 18, 0.98);
}

.editor-stack .style-ribbon-head {
  grid-area: head;
}

.editor-stack .theme-filters {
  grid-area: filters;
  flex-wrap: wrap;
  overflow: visible;
  align-items: flex-start;
}

.editor-stack .theme-quick-strip {
  display: none;
}

.editor-stack .style-ribbon-label,
.editor-stack .style-ribbon-count {
  color: #f2c9a9;
}

.editor-stack .filter-chip,
.editor-stack .quick-theme-pill,
.editor-stack .current-theme-badge {
  background: rgba(255, 255, 255, 0.08);
  color: #f8ecdf;
}

.editor-stack .filter-chip[data-active="true"],
.editor-stack .quick-theme-pill[data-active="true"] {
  background: var(--accent-deep);
  color: #fff8ef;
}

.editor-stack .current-theme-badge {
  border-color: rgba(255, 255, 255, 0.12);
}

.editor-stack .current-theme-badge {
  display: none;
}

.editor-stack .style-ribbon-actions {
  grid-area: actions;
  align-self: start;
  justify-content: flex-start;
}

.editor-stack .ghost-button {
  color: #fff6ea;
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.08);
}

.editor-stack .swatch {
  border-color: rgba(255, 255, 255, 0.15);
}

.workspace {
  min-height: 0;
}

.canvas-pane {
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  overflow: hidden;
  border-radius: 34px;
  background: var(--surface-strong);
}

.editor-stack,
.editor-pane,
.preview-pane {
  min-height: 0;
}

.editor-stack {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  background: var(--editor);
  border-right: 1px solid rgba(255, 255, 255, 0.06);
}

.editor-pane,
.preview-pane {
  display: grid;
  grid-template-rows: 72px minmax(0, 1fr);
}

.editor-pane {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent),
    var(--editor);
}

.preview-pane {
  background:
    linear-gradient(180deg, rgba(255, 250, 244, 0.9), rgba(255, 255, 255, 0.94)),
    #fffdfa;
}

.pane-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 18px;
  border-bottom: 1px solid var(--line);
}

.editor-bar {
  border-bottom-color: rgba(255, 255, 255, 0.09);
  background: linear-gradient(90deg, rgba(199, 106, 45, 0.24), transparent 44%);
}

.preview-bar {
  background: rgba(255, 255, 255, 0.52);
}

.pane-title {
  display: grid;
  gap: 5px;
}

.pane-title strong {
  font-size: 15px;
}

.editor-bar .pane-title strong,
.editor-bar .pane-title span,
.editor-bar .tool-button {
  color: #fff6ea;
}

.tool-row,
.view-row {
  justify-content: flex-end;
}

.tool-button,
.view-button,
.filter-chip {
  height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  transition: transform 140ms ease, background 140ms ease, box-shadow 140ms ease;
}

.view-button,
.filter-chip {
  background: rgba(255, 255, 255, 0.74);
  color: var(--page-ink);
}

.view-button[data-active="true"],
.filter-chip[data-active="true"] {
  color: #fff8ef;
  background: var(--accent-deep);
  box-shadow: 0 10px 22px rgba(143, 68, 25, 0.16);
}

#editor {
  width: 100%;
  height: 100%;
  display: block;
  resize: none;
  border: 0;
  outline: 0;
  padding: 24px 26px 30px;
  color: var(--editor-text);
  background:
    linear-gradient(var(--editor-grid) 1px, transparent 1px),
    var(--editor);
  background-size: 100% 32px;
  line-height: 1.88;
  font-size: 15px;
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, "Source Han Sans SC", monospace;
}

#editor::selection {
  background: rgba(199, 106, 45, 0.42);
}

.preview-stage {
  min-height: 0;
  overflow: auto;
  padding: 24px;
  background:
    radial-gradient(circle at top left, rgba(199, 106, 45, 0.12), transparent 22%),
    linear-gradient(180deg, rgba(255, 248, 241, 0.96), rgba(250, 243, 236, 0.96));
}

.wechat-header,
.preview-shell {
  width: min(100%, 720px);
  margin: 0 auto;
}

.wechat-header {
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  border: 1px solid rgba(67, 39, 24, 0.1);
  border-bottom: 0;
  border-radius: 24px 24px 0 0;
  background: rgba(255, 255, 255, 0.82);
}

.preview-shell {
  min-height: calc(100% - 44px);
  border: 1px solid rgba(67, 39, 24, 0.1);
  border-radius: 0 0 30px 30px;
  background: #ffffff;
  box-shadow: var(--shadow-stage);
  transition: width 180ms ease;
}

.preview-shell[data-view="tablet"] {
  width: min(100%, 560px);
}

.preview-shell[data-view="mobile"] {
  width: min(100%, 390px);
}

.preview-shell[data-view="tablet"] .wx-article,
.preview-shell[data-view="mobile"] .wx-article {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.preview-shell[data-view="tablet"] .wx-article {
  padding: 28px 22px;
}

.preview-shell[data-view="tablet"] .wx-article h1 {
  font-size: 26px;
}

.preview-shell[data-view="tablet"] .wx-article h2 {
  font-size: 20px;
  line-height: 1.42;
}

.preview-shell[data-view="tablet"] .wx-article h3 {
  font-size: 17px;
}

.preview-shell[data-view="tablet"] .wx-article h2,
.preview-shell[data-view="tablet"] .wx-article blockquote,
.preview-shell[data-view="tablet"] .wx-article pre,
.preview-shell[data-view="tablet"] .wx-article table,
.preview-shell[data-view="mobile"] .wx-article h2,
.preview-shell[data-view="mobile"] .wx-article blockquote,
.preview-shell[data-view="mobile"] .wx-article pre,
.preview-shell[data-view="mobile"] .wx-article table {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.preview-shell[data-view="mobile"] .wx-article {
  padding: 22px 16px;
}

.preview-shell[data-view="mobile"] .wx-article h1 {
  font-size: 24px;
  line-height: 1.34;
}

.preview-shell[data-view="mobile"] .wx-article h2 {
  display: block;
  font-size: 18px;
  line-height: 1.42;
  padding: 10px 12px;
}

.preview-shell[data-view="mobile"] .wx-article h3 {
  font-size: 16px;
}

.preview-shell[data-view="mobile"] .wx-article p,
.preview-shell[data-view="mobile"] .wx-article li,
.preview-shell[data-view="mobile"] .wx-article blockquote,
.preview-shell[data-view="mobile"] .wx-article td,
.preview-shell[data-view="mobile"] .wx-article th {
  font-size: 15px;
  line-height: 1.82;
}

.preview-shell[data-view="mobile"] .wx-article blockquote {
  padding: 12px 14px;
}

.theme-drawer {
  position: fixed;
  inset: 0;
  display: none;
  z-index: 20;
}

.theme-drawer[data-open="true"] {
  display: block;
}

.theme-drawer-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(28, 18, 10, 0.42);
}

.theme-drawer-panel {
  position: absolute;
  top: 18px;
  right: 18px;
  bottom: 18px;
  width: min(780px, calc(100vw - 36px));
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr);
  gap: 14px;
  padding: 18px;
  border-radius: 30px;
  background:
    linear-gradient(160deg, rgba(255, 252, 247, 0.96), rgba(252, 242, 233, 0.98)),
    #fffaf5;
}

.theme-drawer-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.theme-drawer-header {
  border-bottom: 1px solid var(--line);
  padding-bottom: 12px;
}

.theme-drawer-header h2 {
  font-size: 26px;
  line-height: 1.08;
  margin-top: 4px;
}

.theme-drawer-header p {
  margin-top: 6px;
  color: var(--muted);
  line-height: 1.7;
}

.theme-filters {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: nowrap;
  overflow: auto;
}

.theme-grid {
  min-height: 0;
  overflow: auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding-right: 2px;
}

.theme-card {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  padding: 14px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.76);
  text-align: left;
  transition: transform 140ms ease, box-shadow 140ms ease, border-color 140ms ease;
}

.swatch {
  width: 84px;
  height: 106px;
  display: block;
  border-radius: 18px;
  background:
    linear-gradient(var(--swatch-accent), var(--swatch-accent)) 14px 16px / 38px 4px no-repeat,
    linear-gradient(var(--swatch-card), var(--swatch-card)) 14px 28px / 56px 26px no-repeat,
    linear-gradient(rgba(0, 0, 0, 0.18), rgba(0, 0, 0, 0.18)) 14px 62px / 44px 3px no-repeat,
    linear-gradient(rgba(0, 0, 0, 0.12), rgba(0, 0, 0, 0.12)) 14px 72px / 56px 2px no-repeat,
    linear-gradient(rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.1)) 14px 82px / 34px 2px no-repeat,
    var(--swatch-bg);
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: inset 0 0 0 6px rgba(255, 255, 255, 0.42);
}

.theme-copy {
  min-width: 0;
  display: grid;
  gap: 6px;
}

.theme-meta {
  color: var(--accent);
  font-weight: 800;
}

.theme-copy strong {
  font-size: 16px;
}

.theme-copy strong,
.theme-copy small {
  overflow: hidden;
  text-overflow: ellipsis;
}

.theme-copy small {
  line-height: 1.7;
}

@media (max-width: 1240px) {
  .topbar,
  .style-ribbon {
    grid-template-columns: 1fr;
  }

  .session-bar,
  .style-ribbon-actions,
  .tool-row,
  .view-row {
    justify-content: flex-start;
  }
}

@media (max-width: 940px) {
  .app-shell {
    padding: 12px;
  }

  .canvas-pane {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(460px, auto) minmax(560px, auto);
  }

  .editor-stack {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .pane-bar {
    min-height: 82px;
    align-items: flex-start;
    padding-top: 12px;
    padding-bottom: 12px;
  }

  .theme-grid {
    grid-template-columns: 1fr;
  }

  .editor-stack .style-ribbon-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 720px) {
  .app-shell {
    gap: 12px;
  }

  .topbar,
  .theme-drawer-panel {
    border-radius: 24px;
  }

  .style-ribbon {
    padding: 12px;
  }

  .product-copy h1 {
    font-size: 22px;
  }

  .preview-stage {
    padding: 12px;
  }

  .wx-article {
    padding: 24px 18px;
  }

  .theme-drawer-panel {
    top: 10px;
    right: 10px;
    bottom: 10px;
    width: calc(100vw - 20px);
  }
}