/* ============================================================
   Claude Template — Design System CSS
   基于 DESIGN-claude.md 的完整设计令牌和组件样式

   设计令牌三层结构:
   1. :root 默认值（本文件）—— 不可被店主覆盖的结构性令牌
   2. _base.html 注入的 --color-* 变量 —— 店主可在 settings.yaml 中覆盖
   3. 组件级变量 —— 从令牌派生

   令牌引用约定（DESIGN-claude.md 格式，代码中不直接使用）:
   - {colors.primary} → var(--color-primary)
   - {typography.display-xl} → .text-display-xl 类
   - {spacing.section} → var(--space-section)
   - {rounded.lg} → var(--radius-lg)
   ============================================================ */

/* ============================================================
   1. DESIGN TOKENS — 结构令牌（不可覆盖）
   ============================================================ */

:root {
  /* ── Typography: Font Families ── */
  /* Copernicus → Cormorant Garamond (免费替代, Google Fonts)
     StyreneB → Inter (免费替代, Google Fonts)
     JetBrains Mono → JetBrains Mono (Google Fonts) */
  --font-display: 'Cormorant Garamond', 'EB Garamond', 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'Cascadia Code', monospace;

  /* ── Typography: Type Scale ──
     字号层级严格遵循 DESIGN-claude.md typography 令牌表
     display 系列用衬线体, title/body/caption 系列用无衬线体 */
  --text-display-xl: 4rem;       /* 64px — Homepage h1 */
  --text-display-lg: 3rem;       /* 48px — Section heads */
  --text-display-md: 2.25rem;    /* 36px — Sub-section heads */
  --text-display-sm: 1.75rem;    /* 28px — Pricing tier names */
  --text-title-lg: 1.375rem;     /* 22px — Plan size labels */
  --text-title-md: 1.125rem;     /* 18px — Feature card titles */
  --text-title-sm: 1rem;         /* 16px — Connector tile titles */
  --text-body-md: 1rem;          /* 16px — Default running text */
  --text-body-sm: 0.875rem;      /* 14px — Footer, fine print */
  --text-caption: 0.8125rem;     /* 13px — Badge labels */
  --text-caption-upper: 0.75rem; /* 12px — Category tags, "NEW" */
  --text-code: 0.875rem;         /* 14px — Code blocks */
  --text-button: 0.875rem;       /* 14px — Button labels */
  --text-nav: 0.875rem;          /* 14px — Nav items */

  /* ── Typography: Line Heights ── */
  --leading-display-xl: 1.05;
  --leading-display-lg: 1.1;
  --leading-display-md: 1.15;
  --leading-display-sm: 1.2;
  --leading-title-lg: 1.3;
  --leading-title-md: 1.4;
  --leading-body: 1.55;
  --leading-caption: 1.4;
  --leading-code: 1.6;
  --leading-button: 1;

  /* ── Typography: Letter Spacing ──
     衬线标题用负 letter-spacing 是 Claude 品牌特征 */
  --tracking-display-xl: -0.023em;  /* -1.5px at 64px */
  --tracking-display-lg: -0.021em;  /* -1px at 48px */
  --tracking-display-md: -0.014em;  /* -0.5px at 36px */
  --tracking-display-sm: -0.011em;  /* -0.3px at 28px */
  --tracking-caption-upper: 0.125em; /* 1.5px at 12px */

  /* ── Spacing Scale (base: 4px) ── */
  --space-xxs: 0.25rem;    /* 4px */
  --space-xs: 0.5rem;       /* 8px */
  --space-sm: 0.75rem;      /* 12px */
  --space-md: 1rem;         /* 16px */
  --space-lg: 1.5rem;       /* 24px */
  --space-xl: 2rem;         /* 32px */
  --space-xxl: 3rem;        /* 48px */
  --space-section: 6rem;    /* 96px — Section rhythm */

  /* ── Border Radius Scale ── */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 8px;         /* Buttons, inputs */
  --radius-lg: 12px;        /* Content cards */
  --radius-xl: 16px;        /* Hero illustrations */
  --radius-pill: 9999px;    /* Badges */
  --radius-full: 9999px;    /* Icon buttons, avatars */

  /* ── Shadows (minimal per Claude philosophy) ──
     Claude 设计系统的 elevations 是 color-block 为主, shadow 极少 */
  --shadow-sm: 0 1px 2px rgba(20,20,19,0.06);
  --shadow-md: 0 1px 3px rgba(20,20,19,0.08);
  --shadow-lg: 0 2px 8px rgba(20,20,19,0.10);

  /* ── Layout ── */
  --container-max: 1400px;
  --header-height: 64px;
  --content-max-narrow: 720px;  /* 文本内容最大宽度 */

  /* ── Transitions ── */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 350ms ease;

  /* ── Z-Index Scale ── */
  --z-header: 100;
  --z-dropdown: 200;
  --z-overlay: 300;
  --z-modal: 400;
}

/* 屏幕阅读器专用，视觉隐藏但对 SEO 和 a11y 可见 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ============================================================
   2. COLOR TOKENS — 店主可覆盖的 6 色 + Claude 别名派生

   后台面板暴露 6 个颜色字段，店主保存后 _base.html
   注入为 --color-* CSS 变量。下方每个面板变量都给出
   Claude 设计系统的默认值。

   其余 Claude 细粒度变量（--color-canvas、--color-ink 等）
   全部从这 6 个面板变量派生，保证改任意一个面板色，
   整个站点所有用到该色系的组件同步生效。
   ============================================================ */

:root {
  /* ── 面板 6 色（admin panel 直接读写） ── */
  --color-primary:         #cc785c;  /* 主色：按钮/badge/链接/icon/active */
  --color-bg:              #faf9f5;  /* 背景：body/header/section 底色 */
  --color-surface:         #efe9de;  /* 面板色：卡片/表单/feature 背景 */
  --color-text:            #141413;  /* 文字色：标题/正文 */
  --color-text-secondary:  #6c6a64;  /* 次要文字：描述/caption/muted */
  --color-border:          #e6dfd8;  /* 边框色：输入框/卡片/分割线 */

  /* ── 主色派生 ── */
  /* hover 颜色从主色自动派生（加深 12%），改 --color-primary 即可全局生效 */
  --color-primary-hover:    color-mix(in srgb, var(--color-primary), black 12%);
  --color-primary-disabled: var(--color-border);
  --color-on-primary:       #ffffff;

  /* ── 背景色分层（精确 hex 对齐 DESIGN-claude.md） ── */
  --color-canvas:           var(--color-bg);
  --color-surface-soft:     color-mix(in srgb, var(--color-bg) 94%, var(--color-primary) 6%);  /* 从背景色混入主题色，随主题色自动变化 */
  --color-surface-card:     var(--color-surface);
  --color-surface-cream-strong: #e8e0d2; /* 规范: #e8e0d2 */
  --color-surface-dark:           #1e1e1e;
  --color-surface-dark-elevated:  #252320;
  --color-surface-dark-soft:      #1f1e1b;

  /* ── 文字色分层（精确 hex 对齐 DESIGN-claude.md） ── */
  --color-ink:              var(--color-text);
  --color-body-strong:      #252523;     /* 规范: #252523 */
  --color-body:             #3d3d3a;     /* 规范: #3d3d3a */
  --color-muted:            var(--color-text-secondary);
  --color-muted-soft:       #8e8b82;     /* 规范: #8e8b82 */
  --color-on-dark:          #faf9f5;
  --color-on-dark-soft:     #a1a1a1;

  /* ── 边框色分层（精确 hex 对齐 DESIGN-claude.md） ── */
  --color-hairline:         var(--color-border);
  --color-hairline-soft:    #ebe6df;     /* 规范: #ebe6df */

  /* ── Accent & Semantic（面板不暴露，保留固定值） ── */
  --color-accent-teal:      #5db8a6;
  --color-accent-amber:     #e8a55a;
  --color-success:          #5db872;
  --color-warning:          #d4a017;
  --color-error:            #c64545;
}

/* ── 中文环境字体覆盖：微软雅黑 > 苹方 > 思源黑体 > 冬青黑体 ── */
/* Cormorant Garamond / Inter 不含中文字符，中文页面必须走此栈 */
:root:lang(zh-CN), :root:lang(zh-TW) {
  --font-display: 'Microsoft YaHei', 'PingFang SC', 'Noto Sans SC', 'Hiragino Sans GB', sans-serif;
  --font-sans: 'Microsoft YaHei', 'PingFang SC', 'Noto Sans SC', 'Hiragino Sans GB', sans-serif;
}

/* ============================================================
   3. RESET & BASE
   ============================================================ */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: var(--text-body-md);
  font-weight: 400;
  line-height: var(--leading-body);
  color: var(--color-body);
  background-color: var(--color-canvas);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-hover);
}

ul, ol {
  list-style: none;
  padding: 0;
  margin: 0;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: 400;
}

p {
  margin: 0 0 var(--space-md);
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

hr {
  height: 1px;
  background-color: #f3f3f7;
  border: none;
}

/* ============================================================
   4. SITE LAYOUT
   ============================================================ */

.site-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.main-content {
  flex: 1;
  padding-top: var(--header-height);
}

.container {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

.container--narrow {
  max-width: var(--content-max-narrow);
}

.section {
  padding-top: var(--space-xxl);
  padding-bottom: var(--space-xxl);
  background-color: var(--bg-color, transparent);
  /* 背景图叠加半透明遮罩，确保文字始终可读 */
  background-image: linear-gradient(rgba(0,0,0,0.4), rgba(0,0,0,0.4)), var(--bg);
  background-size: cover, cover;
  background-position: center, center;
  background-repeat: no-repeat;
}

.section--sm {
  padding-top: var(--space-xxl);
  padding-bottom: var(--space-xxl);
}

/* 背景色变体 */
/* data-style="bg-color" 注入的 --bg-color 变量优先，未设置时回落表面色 */
.surface-canvas {
  background-color: var(--bg-color, var(--color-canvas));
}

.surface-soft {
  background-color: var(--bg-color, var(--color-surface-soft));
}

.surface-card {
  background-color: var(--bg-color, var(--color-surface-card));
}

.surface-dark {
  background-color: var(--color-surface-dark);
  color: var(--color-on-dark);
}

.surface-coral {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
}

/* ============================================================
   5. TYPOGRAPHY UTILITY CLASSES
   遵循 DESIGN-claude.md typography 令牌表
   ============================================================ */

/* Display — 衬线标题, weight 400, 负 letter-spacing */
.text-display-xl {
  font-family: var(--font-display);
  font-size: var(--text-display-xl);
  font-weight: 400;
  line-height: var(--leading-display-xl);
  letter-spacing: var(--tracking-display-xl);
}

.text-display-lg {
  font-family: var(--font-display);
  font-size: var(--text-display-lg);
  font-weight: 400;
  line-height: var(--leading-display-lg);
  letter-spacing: var(--tracking-display-lg);
}

.text-display-md {
  font-family: var(--font-display);
  font-size: var(--text-display-md);
  font-weight: 400;
  line-height: var(--leading-display-md);
  letter-spacing: var(--tracking-display-md);
}

.text-display-sm {
  font-family: var(--font-display);
  font-size: var(--text-display-sm);
  font-weight: 400;
  line-height: var(--leading-display-sm);
  letter-spacing: var(--tracking-display-sm);
}

/* Title — 无衬线标题, weight 500 */
.text-title-lg {
  font-family: var(--font-sans);
  font-size: var(--text-title-lg);
  font-weight: 500;
  line-height: var(--leading-title-lg);
}

.text-title-md {
  font-family: var(--font-sans);
  font-size: var(--text-title-md);
  font-weight: 500;
  line-height: var(--leading-title-md);
}

.text-title-sm {
  font-family: var(--font-sans);
  font-size: var(--text-title-sm);
  font-weight: 500;
  line-height: var(--leading-title-md);
}

/* Body — 无衬线正文 */
.text-body-md {
  font-family: var(--font-sans);
  font-size: var(--text-body-md);
  font-weight: 400;
  line-height: var(--leading-body);
}

.text-body-sm {
  font-family: var(--font-sans);
  font-size: var(--text-body-sm);
  font-weight: 400;
  line-height: var(--leading-body);
}

/* Caption */
.text-caption {
  font-family: var(--font-sans);
  font-size: var(--text-caption);
  font-weight: 500;
  line-height: var(--leading-caption);
}

.text-caption-upper {
  font-family: var(--font-sans);
  font-size: var(--text-caption-upper);
  font-weight: 500;
  line-height: var(--leading-caption);
  letter-spacing: var(--tracking-caption-upper);
  text-transform: uppercase;
}

/* Code */
.text-code {
  font-family: var(--font-mono);
  font-size: var(--text-code);
  font-weight: 400;
  line-height: var(--leading-code);
}

/* Text Colors */
.text-ink { color: var(--color-ink); }
.text-body-strong { color: var(--color-body-strong); }
.text-body { color: var(--color-body); }
.text-muted { color: var(--color-muted); }
.text-muted-soft { color: var(--color-muted-soft); }
.text-on-dark { color: var(--color-on-dark); }
.text-on-dark-soft { color: var(--color-on-dark-soft); }
.text-primary { color: var(--color-primary); }
.text-on-primary { color: var(--color-on-primary); }

/* ============================================================
   6. BUTTONS
   遵循 DESIGN-claude.md components.button-*
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: var(--text-button);
  font-weight: 500;
  line-height: var(--leading-button);
  padding: 12px 20px;
  height: 40px;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast),
              color var(--transition-fast),
              opacity var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  border: none;
}

/* Primary — 标志性珊瑚色 CTA */
.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  color: var(--color-on-primary);
}

.btn-primary:active {
  background-color: var(--color-primary-hover);
}

.btn-primary:disabled,
.btn-primary.disabled {
  background-color: var(--color-primary-disabled);
  color: var(--color-muted);
  cursor: not-allowed;
}

/* Secondary — 奶油色 + hairline 边框 */
.btn-secondary {
  background-color: var(--color-canvas);
  color: var(--color-ink);
  border: 1px solid var(--color-hairline);
}

.btn-secondary:hover {
  background-color: var(--color-surface-soft);
}

.btn-secondary:active {
  background-color: var(--color-surface-card);
}

/* Secondary on Dark — 深色表面上的次要按钮 */
.btn-secondary-on-dark {
  background-color: var(--color-surface-dark-elevated);
  color: var(--color-on-dark);
  border: 1px solid rgba(255,255,255,0.1);
}

.btn-secondary-on-dark:hover {
  background-color: rgba(255,255,255,0.08);
  color: var(--color-on-dark);
}

/* Text Link — 无背景文字按钮（导航中的 "Sign in"） */
.btn-text-link {
  background: transparent;
  color: var(--color-ink);
  padding: 8px 14px;
  height: auto;
}

.btn-text-link:hover {
  color: var(--color-muted);
}

.detail-breadcrumb {
  padding: var(--space-md) 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-hairline);
}

.detail-breadcrumb-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-xs);
  font-size: var(--text-body-sm);
  line-height: var(--leading-caption);
}

.detail-breadcrumb-item {
  color: var(--color-muted);
  text-decoration: none;
}

.detail-breadcrumb-item[href]:hover {
  color: var(--color-ink);
}

.detail-breadcrumb-item.active {
  color: var(--color-ink);
  font-weight: 500;
}

.detail-breadcrumb-separator {
  color: var(--color-muted);
  opacity: 0.55;
}

.detail-back-section {
  padding: var(--space-xl) 0 var(--space-xxl);
}

.detail-back-button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

/* Icon Circular — 36px 圆形图标按钮 */
.btn-icon-circular {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: var(--radius-full);
  background-color: var(--color-canvas);
  color: var(--color-ink);
  border: 1px solid var(--color-hairline);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-icon-circular:hover {
  background-color: var(--color-surface-soft);
}

/* Button Sizes */
.btn-lg {
  padding: 16px 28px;
  height: 48px;
  font-size: var(--text-title-sm);
}

.btn-sm {
  padding: 8px 14px;
  height: 32px;
  font-size: var(--text-caption);
}

/* Full-width */
.btn-block {
  width: 100%;
}

/* ============================================================
   7. BADGES
   遵循 DESIGN-claude.md components.badge-*
   ============================================================ */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-family: var(--font-sans);
  font-size: var(--text-caption);
  font-weight: 500;
  line-height: var(--leading-caption);
  white-space: nowrap;
}

.badge-pill {
  background-color: var(--color-surface-card);
  color: var(--color-ink);
}

.badge-coral {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  font-size: var(--text-caption-upper);
  letter-spacing: var(--tracking-caption-upper);
  text-transform: uppercase;
}

.badge-outline {
  background: transparent;
  border: 1px solid var(--color-hairline);
  color: var(--color-muted);
}

/* ============================================================
   8. CARDS
   遵循 DESIGN-claude.md 卡片组件规范
   ============================================================ */

/* Feature Card — 奶油色表面卡片, 32px 内边距 */
.card-feature {
  background-color: var(--color-surface-card);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

/* Dark Card — 深海军蓝产品卡片 */
.card-dark {
  background-color: var(--color-surface-dark);
  color: var(--color-on-dark);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

/* Code Window Card — 代码编辑器展示卡片 */
.card-code-window {
  background-color: var(--color-surface-dark);
  color: var(--color-on-dark);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  font-family: var(--font-mono);
  font-size: var(--text-code);
  line-height: var(--leading-code);
  overflow-x: auto;
}

/* Coral Callout Card — 全幅珊瑚色 CTA 卡片 */
.card-coral-callout {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-xxl);
}

/* Connector Tile — 集成/联系信息卡片 */
.card-connector {
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-lg);
  padding: 20px;
}

/* ============================================================
   9. FORM INPUTS
   遵循 DESIGN-claude.md components.text-input
   ============================================================ */

.input-text {
  display: block;
  width: 100%;
  height: 40px;
  padding: 10px 14px;
  font-family: var(--font-sans);
  font-size: var(--text-body-md);
  line-height: var(--leading-body);
  color: var(--color-ink);
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast);
  outline: none;
}

.input-text::placeholder {
  color: var(--color-muted-soft);
}

.input-text:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(204,120,92,0.15);  /* coral at 15% alpha */
}

.input-text:disabled {
  background-color: var(--color-surface-soft);
  color: var(--color-muted);
  cursor: not-allowed;
}

/* Textarea */
.textarea {
  display: block;
  width: 100%;
  min-height: 120px;
  padding: 10px 14px;
  font-family: var(--font-sans);
  font-size: var(--text-body-md);
  line-height: var(--leading-body);
  color: var(--color-ink);
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-md);
  resize: vertical;
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast);
  outline: none;
}

.textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(204,120,92,0.15);
}

/* Form Label */
.form-label {
  display: block;
  margin-bottom: var(--space-xs);
  font-family: var(--font-sans);
  font-size: var(--text-body-sm);
  font-weight: 500;
  color: var(--color-body-strong);
}

/* Form Group */
.form-group {
  margin-bottom: var(--space-md);
}

/* ============================================================
   10. SECTION HEADER (通用区块标题样式)
   用于 section_title block 和手动标题区域
   ============================================================ */

/* text-align 由 data-style="text-align" 注入的 --text-align 变量控制，默认居中 */
.section-header {
  text-align: var(--text-align, center);
  margin-bottom: var(--space-xxl);
}

/* 内部所有子元素都打了 hidden（空字段输出）→ 整个区域也不占位 */
.section-header:not(:has(> :not([hidden]))) {
  display: none;
}

.section-header--left {
  text-align: left;
}

.section-header__tag {
  margin-bottom: var(--space-sm);
}

.section-header__title {
  font-family: var(--font-display);
  font-size: var(--text-display-lg);
  font-weight: 400;
  line-height: var(--leading-display-lg);
  letter-spacing: var(--tracking-display-lg);
  color: var(--color-ink);
  margin-bottom: var(--space-md);
}

.section-header__desc {
  font-size: var(--text-body-md);
  color: var(--color-muted);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-header--left .section-header__desc {
  margin-left: 0;
}

/* ============================================================
   11. GRID & LAYOUT UTILITIES
   ============================================================ */

/* 通用网格 */
.grid {
  display: grid;
  gap: var(--space-lg);
}

/* 列数由 data-style="cols" 注入的 --cols 变量控制（父级 section 的 style 属性级联），
   未设置时各类取自己的默认值。响应式断点继续硬编码缩列，不受 --cols 影响。 */
.grid--2 { grid-template-columns: repeat(var(--cols, 2), 1fr); }
.grid--3 { grid-template-columns: repeat(var(--cols, 3), 1fr); }
.grid--4 { grid-template-columns: repeat(var(--cols, 4), 1fr); }
.grid--6 { grid-template-columns: repeat(var(--cols, 6), 1fr); }

/* Flex 布局 */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

/* 文本对齐 */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Margin utilities */
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

/* ============================================================
   12. ANIMATIONS
   ============================================================ */

/* 淡入上移 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease both;
}

/* 数字滚动（stat_counter 使用） */
@keyframes countUp {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ============================================================
   13. HEADER
   遵循 DESIGN-claude.md components.top-nav
   奶油画布背景, 64px 高, 无阴影, 单变体
   ============================================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: var(--color-canvas);
  z-index: var(--z-header);
  transition: border-bottom var(--transition-base);
  border-bottom: 1px solid var(--color-hairline);
}

/* 滚动后出现 hairline 底部边框（Claude 用边框不用阴影） */
.site-header.scrolled {
  border-bottom: 1px solid var(--color-hairline);
}

.header-inner {
  display: flex;
  align-items: center;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* Logo */
.header-logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  text-decoration: none;
  color: var(--color-ink);
  flex-shrink: 0;
  margin-right: var(--space-xl);
}

.header-logo:hover {
  color: var(--color-ink);
}

/* Anthropic 风格的 spike-mark (简易 SVG 星形占位) */
.header-logo-mark {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* 自定义 logo 图片 */
.header-logo-img {
  height: 40px;
  width: auto;
  flex-shrink: 0;
}

.header-logo-text {
  font-family: var(--font-sans);
  font-size: var(--text-title-lg);
  font-weight: 500;
  color: var(--color-ink);
}

/* 主导航 */
.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  flex: 1;
}

.nav-link {
  font-family: var(--font-sans);
  font-size: var(--text-nav);
  font-weight: 500;
  color: var(--color-ink);
  text-decoration: none;
  padding: 8px 0;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--color-muted);
}

/* Active 状态: 下划线（Claude 风格） */
.nav-link.active {
  color: var(--color-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 1px;
}

/* Header 右侧操作区 */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-left: auto;
  flex-shrink: 0;
}

/* 移动端汉堡菜单按钮 */
.header-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  gap: 5px;
}

.header-menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-ink);
  border-radius: 1px;
  transition: transform var(--transition-base),
              opacity var(--transition-base);
}

/* 移动端打开状态: 汉堡变 X */
.header-menu-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.header-menu-toggle.open span:nth-child(2) {
  opacity: 0;
}
.header-menu-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   14. NAVIGATION DROPDOWNS
   ============================================================ */

/* 下拉容器 */
.nav-dropdown {
  position: relative;
}

/* 下拉触发项 */
.nav-dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* 下拉箭头小图标 */
.nav-dropdown-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  padding: 0;
  margin: 0;
  border: 0;
  background: transparent;
  line-height: 1;
  cursor: pointer;
  transition: transform var(--transition-base);
  color: var(--color-muted);
}

.nav-dropdown-arrow svg {
  display: block;
}

.nav-dropdown.open .nav-dropdown-arrow {
  transform: rotate(180deg);
}

/* 下拉菜单面板 */
.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-md);
  padding: var(--space-xs) 0;
  min-width: 180px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base),
              visibility var(--transition-base);
  z-index: var(--z-dropdown);
  box-shadow: var(--shadow-md);
}

.nav-dropdown.open > .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
}

/* 下拉菜单项 */
.nav-dropdown-item {
  display: block;
  padding: 8px 16px;
  font-family: var(--font-sans);
  font-size: var(--text-nav);
  font-weight: 400;
  color: var(--color-ink);
  text-decoration: none;
  transition: background-color var(--transition-fast),
              color var(--transition-fast);
  white-space: nowrap;
}

.nav-dropdown-item:hover {
  background-color: var(--color-surface-soft);
  color: var(--color-ink);
}

/* 嵌套下拉 */
.nav-dropdown-nested {
  position: relative;
}

.nav-dropdown-nested > .nav-dropdown-menu {
  top: -8px;
  left: 100%;
  transform: none;
}

/* ============================================================
   15. MOBILE NAV
   ============================================================ */

/* 移动端全屏菜单面板 */
.mobile-nav-overlay {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-canvas);
  z-index: calc(var(--z-header) - 1);
  padding: var(--space-lg);
  overflow-y: auto;
}

.mobile-nav-overlay.open {
  display: flex;
  flex-direction: column;
}

.mobile-nav-link {
  display: block;
  padding: var(--space-sm) 0;
  font-family: var(--font-sans);
  font-size: var(--text-title-md);
  font-weight: 500;
  color: var(--color-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--color-hairline-soft);
}

.mobile-nav-link:hover {
  color: var(--color-primary);
}

/* 移动端下拉项 */
.mobile-nav-dropdown-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-sm) 0;
  font-family: var(--font-sans);
  font-size: var(--text-title-md);
  font-weight: 500;
  color: var(--color-ink);
  background: none;
  border: none;
  border-bottom: 1px solid var(--color-hairline-soft);
  cursor: pointer;
  text-align: left;
}

.mobile-nav-children {
  display: none;
  padding-left: var(--space-md);
}

.mobile-nav-children.open {
  display: block;
}

.mobile-nav-child-link {
  display: block;
  padding: var(--space-xs) 0;
  font-size: var(--text-body-md);
  color: var(--color-muted);
  text-decoration: none;
}

/* 移动端 CTA */
.mobile-nav-cta {
  margin-top: var(--space-lg);
}

/* ============================================================
   16. LANGUAGE SWITCHER
   ============================================================ */

.lang-switcher {
  position: relative;
}

.lang-switcher__toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  font-family: var(--font-sans);
  font-size: var(--text-body-sm);
  font-weight: 500;
  color: var(--color-muted);
  background: none;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.lang-switcher__toggle:hover {
  border-color: var(--color-muted-soft);
}

.lang-switcher__arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-base);
  color: var(--color-muted-soft);
}

.lang-switcher.open .lang-switcher__arrow {
  transform: rotate(180deg);
}

.lang-switcher__dropdown {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-md);
  padding: var(--space-xs) 0;
  min-width: 140px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base),
              visibility var(--transition-base);
  z-index: var(--z-dropdown);
  box-shadow: var(--shadow-md);
}

.lang-switcher.open .lang-switcher__dropdown {
  opacity: 1;
  visibility: visible;
}

.lang-switcher__option {
  display: block;
  width: 100%;
  padding: 8px 16px;
  font-size: var(--text-body-sm);
  color: var(--color-ink);
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.lang-switcher__option:hover {
  background-color: var(--color-surface-soft);
}

.lang-switcher__option.active {
  color: var(--color-primary);
}

/* 内联语言切换（flag_icon 样式） */
.lang-switcher--inline {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.lang-switcher--inline a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  font-size: var(--text-body-sm);
  font-weight: 500;
  color: var(--color-muted);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast),
              background-color var(--transition-fast);
}

.lang-switcher--inline a:hover {
  color: var(--color-ink);
  background-color: var(--color-surface-soft);
}

.lang-switcher--inline a.active {
  color: var(--color-primary);
}

.lang-switcher--inline .lang-flag-img {
  width: 18px;
  height: 12px;
  display: block;
  object-fit: cover;
  border-radius: 2px;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.08);
}

/* ============================================================
   17. FOOTER
   遵循 DESIGN-claude.md components.footer
   深海军蓝 (#181715), 64px 垂直内边距
   ============================================================ */

.site-footer {
  background-color: var(--color-surface-dark);
  color: var(--color-on-dark-soft);
  padding-top: var(--space-xxl);
  padding-bottom: var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-col__title {
  font-family: var(--font-sans);
  font-size: var(--text-body-sm);
  font-weight: 500;
  color: var(--color-on-dark);
  margin-bottom: var(--space-md);
}

.footer-col__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer-col__links a {
  font-family: var(--font-sans);
  font-size: var(--text-body-sm);
  color: var(--color-on-dark-soft);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-col__links a:hover {
  color: var(--color-on-dark);
}

/* Footer 品牌区（columns_social variant） */
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-brand__logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-sm);
}

.footer-brand__mark {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--color-on-dark);
}

/* 自定义 footer logo 图片 */
.footer-brand__img {
  height: 22px;
  width: auto;
  flex-shrink: 0;
}

.footer-brand__name {
  font-family: var(--font-sans);
  font-size: var(--text-title-sm);
  font-weight: 500;
  color: var(--color-on-dark);
}

.footer-brand__desc {
  font-size: var(--text-body-sm);
  line-height: var(--leading-body);
  color: var(--color-on-dark-soft);
}

/* Footer 底部栏 */
.footer-bottom {
  border-top: 1px solid rgba(250,249,245,0.08);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-bottom__copyright {
  font-size: var(--text-body-sm);
  color: var(--color-muted-soft);
}

.footer-bottom__links {
  display: flex;
  gap: var(--space-lg);
}

.footer-bottom__links a {
  font-size: var(--text-body-sm);
  color: var(--color-on-dark-soft);
  text-decoration: none;
}

.footer-bottom__links a:hover {
  color: var(--color-on-dark);
}

/* 社交图标 */
.social-links {
  display: grid;
  grid-template-columns: repeat(5, 32px);
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.social-links__icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-on-dark-soft);
  transition: color var(--transition-fast),
              background-color var(--transition-fast);
}

.social-links__icon:hover {
  color: var(--color-on-dark);
  background-color: var(--color-surface-dark-elevated);
}

.social-links__icon svg {
  width: 16px;
  height: 16px;
}

/* Footer 变体: 联系方式在右侧 */
.footer--social .footer-grid {
  grid-template-columns: 2fr 1fr 1fr 1fr;
}

/* Minimal footer */
.footer--minimal {
  text-align: center;
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
}
.footer--minimal .footer-bottom {
  border-top: none;
  padding-top: var(--space-md);
}

/* ============================================================
   18. RESPONSIVE BREAKPOINTS
   遵循 DESIGN-claude.md 断点表
   ============================================================ */

/* Tablet: 768px - 1024px */
@media (max-width: 1024px) {
  :root {
    --text-display-xl: 3rem;      /* 48px */
    --text-display-lg: 2.25rem;   /* 36px */
    --text-display-md: 1.75rem;   /* 28px */
    --text-display-sm: 1.5rem;    /* 24px */
    --space-section: 4rem;        /* 64px */
  }

  .header-nav {
    gap: var(--space-md);
  }

  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--6 { grid-template-columns: repeat(3, 1fr); }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer--social .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Mobile: < 768px */
@media (max-width: 768px) {
  :root {
    --text-display-xl: 2.25rem;   /* 36px */
    --text-display-lg: 2rem;      /* 32px */
    --text-display-md: 1.75rem;   /* 28px */
    --text-display-sm: 1.5rem;    /* 24px */
    --space-section: 4rem;        /* 64px */
  }

  /* 移动端导航 */
  .header-nav {
    display: none;
  }
  .header-menu-toggle {
    display: flex;
  }

  /* 移动端隐藏桌面操作区 */
  .header-actions .btn-primary {
    display: none;
  }

  /* 网格全变为单列 */
  .grid--2,
  .grid--3,
  .grid--4,
  .grid--6 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  .footer--social .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* Small Mobile: < 480px */
@media (max-width: 480px) {
  :root {
    --text-display-xl: 2rem;      /* 32px */
    --text-display-lg: 1.75rem;   /* 28px */
    --section-padding: 1rem;
    --space-section: 3rem;        /* 48px */
  }

  .container {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }
}

/* Wide: > 1440px — 与桌面一致, 最大内容宽度已固定在 1200px */

/* ============================================================
   19.

/* ============================================================

/* ============================================================
   BLOCK STYLES — Claude design language
   All values use Claude tokens, aligned with DESIGN-claude.md
   ============================================================ */

/* ── Common: hidden attribute + section header ── */
[hidden] { display: none !important; }

.section-header {
  text-align: var(--text-align, center);
  margin-bottom: var(--space-xxl);
}
.section-title {
  font-family: var(--font-display);
  font-size: var(--text-display-lg);
  font-weight: 400;
  line-height: var(--leading-display-lg);
  letter-spacing: var(--tracking-display-lg);
  color: var(--color-ink);
  margin-bottom: var(--space-md);
}
.section-description {
  font-size: var(--text-body-md);
  color: var(--color-muted);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   hero_banner (hero-banner-*)
   ============================================ */
.hero-banner {
  padding: 0;
  background-color: var(--color-canvas);
  position: relative;
  overflow: hidden;
}
.hero-banner .container {
  height: 100%;
  max-width: none;
  padding: 0 !important;
}
.hero-banner-slides { position: relative; }
.hero-banner-slide { display: none; }
.hero-banner-slide.active {
  display: block;
  animation: fadeInUp 0.6s ease both;
}
.hero-banner-media {
  position: absolute; inset: 0;
}
.hero-banner-video {
  position: absolute; top: 50%; left: 50%;
  min-width: 100%; min-height: 100%;
  width: auto; height: auto;
  transform: translate(-50%, -50%);
}
.hero-banner-image,
.hero-banner-media img {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover;
}
.hero-banner-image-placeholder {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background-color: var(--color-surface-card);
  color: var(--color-muted);
}
.hero-banner-overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.25);
}
.hero-banner-content {
  position: relative; z-index: 2;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: var(--text-align, center);
  min-height: 77vh;
  padding: var(--space-section) var(--space-lg);
  max-width: var(--container-max); margin: 0 auto;
}
.hero-banner-title {
  font-family: var(--font-display);
  font-size: var(--text-display-xl);
  font-weight: 400;
  line-height: var(--leading-display-xl);
  letter-spacing: var(--tracking-display-xl);
  color: var(--color-on-primary, #ffffff);
  margin-bottom: var(--space-lg);
}
.hero-banner-subtitle {
  font-size: var(--text-title-sm);
  color: rgba(255,255,255,0.9);
  max-width: 540px;
  margin-bottom: var(--space-xl);
}
.hero-banner-actions {
  display: flex; gap: var(--space-sm); flex-wrap: wrap; justify-content: center;
  width: 100%;
}
.hero-banner[style*="--text-align: left"] .hero-banner-content,
.hero-banner[style*="--text-align:left"] .hero-banner-content { align-items: flex-start; }
.hero-banner[style*="--text-align: center"] .hero-banner-content,
.hero-banner[style*="--text-align:center"] .hero-banner-content { align-items: center; }
.hero-banner[style*="--text-align: right"] .hero-banner-content,
.hero-banner[style*="--text-align:right"] .hero-banner-content { align-items: flex-end; }
.hero-banner[style*="--text-align: left"] .hero-banner-subtitle,
.hero-banner[style*="--text-align:left"] .hero-banner-subtitle { margin-left: 0; margin-right: auto; }
.hero-banner[style*="--text-align: center"] .hero-banner-subtitle,
.hero-banner[style*="--text-align:center"] .hero-banner-subtitle { margin-left: auto; margin-right: auto; }
.hero-banner[style*="--text-align: right"] .hero-banner-subtitle,
.hero-banner[style*="--text-align:right"] .hero-banner-subtitle { margin-left: auto; margin-right: 0; }
.hero-banner[style*="--text-align: left"] .hero-banner-actions,
.hero-banner[style*="--text-align:left"] .hero-banner-actions { justify-content: flex-start; }
.hero-banner[style*="--text-align: center"] .hero-banner-actions,
.hero-banner[style*="--text-align:center"] .hero-banner-actions { justify-content: center; }
.hero-banner[style*="--text-align: right"] .hero-banner-actions,
.hero-banner[style*="--text-align:right"] .hero-banner-actions { justify-content: flex-end; }
.hero-banner-actions .btn-primary {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
}
.hero-banner-actions .btn-primary:hover {
  background-color: var(--color-primary-hover);
}
.hero-banner-actions .btn-secondary {
  background-color: transparent;
  color: rgba(255,255,255,0.9);
  border: 1px solid rgba(255,255,255,0.4);
}
.hero-banner-actions .btn-secondary:hover {
  background-color: rgba(255,255,255,0.1);
  color: #ffffff;
}
.hero-banner-dots {
  position: absolute; bottom: var(--space-xl); left: 50%; transform: translateX(-50%);
  display: flex; gap: var(--space-xs); z-index: 3;
}
.hero-banner-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background-color: rgba(255,255,255,0.4);
  border: none; cursor: pointer; padding: 0;
  transition: background-color var(--transition-fast);
}
.hero-banner-dot:hover { background-color: rgba(255,255,255,0.7); }
.hero-banner-dot.active { background-color: var(--color-primary); }
.hero-banner-nav {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 3;
  width: 36px; height: 36px; border-radius: var(--radius-full);
  background-color: var(--color-canvas);
  color: var(--color-ink);
  border: 1px solid var(--color-hairline);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}
.hero-banner-nav:hover { background-color: var(--color-surface-soft); }
.hero-banner-nav-prev { left: var(--space-md); }
.hero-banner-nav-next { right: var(--space-md); }

/* ============================================
   highlight_card (hl-*)
   ============================================ */
.hl-grid {
  display: flex;
  flex-direction: var(--dir, row);
  gap: var(--space-xxl);
  align-items: center;
  /* background-color: var(--color-bg, #fff); */
}
.hl-image {
  flex: 1; min-width: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.hl-image img,
.hl-image video,
.hl-image iframe {
  width: 100%;
  display: block;
  border: 0;
  border-radius: var(--radius-lg);
}
.hl-image img {
  height: auto;
}
.hl-image video,
.hl-image iframe {
  aspect-ratio: 16 / 9;
  min-height: 360px;
  /* background: #0f172a; */
}
.hl-text {
  flex: 1; min-width: 0;
  display: flex; flex-direction: column;
}
.hl-tag {
  display: inline-flex; align-items: center;
  padding: 0px 12px; border-radius: var(--radius-pill);
  font-size: var(--text-caption-upper);
  font-weight: 500; letter-spacing: var(--tracking-caption-upper);
  text-transform: uppercase;
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  margin-bottom: var(--space-md);
  width: fit-content;
  line-height: 21px;
}
.hl-title {
  font-family: var(--font-display);
  font-size: var(--text-display-md);
  font-weight: 400;
  line-height: var(--leading-display-md);
  letter-spacing: var(--tracking-display-md);
  color: var(--color-ink);
  margin-bottom: var(--space-md);
}
.hl-date {
  font-size: var(--text-caption);
  color: var(--color-muted-soft);
  margin-bottom: var(--space-sm);
}
.hl-desc {
  font-size: var(--text-body-md);
  color: var(--color-body);
  line-height: var(--leading-body);
  margin-bottom: var(--space-lg);
  /* 不做行数截断：highlight_card 描述常含尺寸/降噪/配置等多行参数，
     clamp 到 2 行会把后半段吃掉（如静音仓 S1）。改为完整显示，
     dir_row 图文左右排列变高不影响美观。 */
}
.hl-desc ul,
.hl-desc ol {
  margin: 0 0 var(--space-md) 1.25rem;
  padding-left: 1.25rem;
  list-style-position: outside;
}
.hl-desc ul {
  list-style: disc;
}
.hl-desc ol {
  list-style: decimal;
}
.hl-desc li {
  display: list-item;
  margin: 0.35rem 0;
}
.hl-features {
  display: flex; flex-direction: column; gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}
.hl-feature {
  padding-left: var(--space-lg); position: relative;
  font-size: var(--text-body-md); color: var(--color-body);
}
.hl-feature::before {
  content: '';
  position: absolute; left: 0; top: 0.55em;
  width: 6px; height: 6px; border-radius: 50%;
  background-color: var(--color-primary);
}
.hl-actions { display: flex; gap: var(--space-sm); flex-wrap: wrap; }
.hl-btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-size: var(--text-button); font-weight: 500; line-height: var(--leading-button);
  padding: 12px 20px; height: 40px; border-radius: var(--radius-md);
  text-decoration: none; white-space: nowrap; cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}
.hl-btn--primary {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
}
.hl-btn--primary:hover {
  background-color: var(--color-primary-hover);
  color: var(--color-on-primary);
}
.hl-btn--secondary {
  background-color: var(--color-canvas);
  color: var(--color-ink);
  border: 1px solid var(--color-hairline);
}
.hl-btn--secondary:hover {
  background-color: var(--color-surface-soft);
  color: var(--color-ink);
}

/* ============================================
   feature_grid (services-grid / service-card)
   ============================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(var(--cols, 3), 1fr);
  gap: var(--space-lg);
}
.service-card {
  background-color: var(--color-surface-card);
  border-radius: var(--radius-lg);
  padding: var(--space-xs);
  transition: transform var(--transition-base);
  border: 1px solid var(--color-hairline);
  text-align: center;
}
.service-card:hover { transform: translateY(-2px); }
.service-icon {
  flex-shrink: 0;
  width: 50px; height: 50px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md);
  /* background-color: var(--color-surface-cream-strong); */
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  margin: 0 auto;
}
.service-icon svg {
  width: 28px; height: 28px;
  stroke: var(--color-primary); fill: none;
}
.service-card-title {
  font-size: var(--text-title-sm); font-weight: 500;
  line-height: var(--leading-title-md);
  color: var(--color-ink);
  margin-bottom: var(--space-xxs);
}
.service-card-desc {
  font-size: var(--text-body-sm);
  color: var(--color-muted);
  line-height: var(--leading-body);
}

/* ============================================
   section_title (st-*)
   ============================================ */
.st-block {
  text-align: var(--text-align, center);
  /* padding: var(--space-xxl) 0; */
}
.builder-module[data-builder-module-type="section_title"] > .section {
  display: flex;
  align-items: center;
  /* padding-top: var(--space-section);
  padding-bottom: var(--space-section); */
  min-height: var(--min-height, auto);
}
.builder-module[data-builder-module-type="section_title"] > .section > .container {
  width: 100%;
}
.builder-module[data-builder-module-type="section_title"] .st-title:has(+ .st-desc[hidden]) {
  margin-bottom: 0;
}
.st-tag {
  position: relative;
  isolation: isolate;
  display: inline-flex; align-items: center;
  padding: 4px 12px; border-radius: var(--radius-pill);
  font-size: var(--text-caption-upper);
  font-weight: 500; letter-spacing: var(--tracking-caption-upper);
  text-transform: uppercase;
  background-color: transparent;
  color: var(--color-on-primary);
  margin-bottom: var(--space-md);
  line-height: 19px;
}
.st-tag::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  border-radius: inherit;
  background-color: var(--color-primary);
  opacity: 0.35;
  content: "";
}
.st-title {
  font-family: var(--font-display);
  font-size: var(--text-display-lg);
  font-weight: 400;
  line-height: var(--leading-display-lg);
  letter-spacing: var(--tracking-display-lg);
  color: var(--font-color, var(--color-ink));
  margin-bottom: var(--space-md);
}
.st-desc {
  font-size: var(--text-body-md);
  color: var(--color-muted);
  /* max-width: 600px; */
  margin-left: auto; margin-right: auto;
  /* margin-bottom: var(--space-xl); */
}
.st-btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-size: var(--text-button); font-weight: 500; line-height: var(--leading-button);
  padding: 12px 20px; height: 40px; border-radius: var(--radius-md);
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  text-decoration: none; cursor: pointer;
  transition: background-color var(--transition-fast);
}
.st-btn:hover {
  background-color: var(--color-primary-hover);
  color: var(--color-on-primary);
}

/* ============================================
   item_detail (id-*)
   ============================================ */
.id-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xxl);
  align-items: start;
}
.id-image-zone { position: relative; }
.id-magnify-container {
  position: relative; overflow: hidden;
  border-radius: var(--radius-lg);
  background-color: var(--color-surface-card);
}
.id-main-image {
  width: 100%; display: block;
  border-radius: var(--radius-lg);
}
.id-magnify-glass {
  position: absolute;
  width: 180px; height: 180px;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-primary);
  background-repeat: no-repeat;
  pointer-events: none;
  z-index: 10;
}
.id-thumb-list {
  display: flex; gap: var(--space-sm); flex-wrap: wrap;
  margin-top: var(--space-md);
}
.id-thumb-item {
  width: 72px; height: 72px;
  border-radius: var(--radius-sm);
  background-size: cover; background-position: center;
  cursor: pointer; border: 2px solid transparent;
  transition: border-color var(--transition-fast);
}
.id-thumb-item:hover { border-color: var(--color-muted-soft); }
.id-thumb-item.active { border-color: var(--color-primary); }
.id-info-zone {
  display: flex; flex-direction: column;
}
.id-title {
  font-family: var(--font-display);
  font-size: var(--text-display-md);
  font-weight: 400;
  line-height: var(--leading-display-md);
  letter-spacing: var(--tracking-display-md);
  color: var(--color-ink);
  margin-bottom: var(--space-md);
}
.id-desc {
  font-size: var(--text-body-md);
  color: var(--color-body);
  line-height: var(--leading-body);
  margin-bottom: var(--space-lg);
}
.id-tags {
  display: flex; flex-wrap: wrap; gap: var(--space-xs);
  margin-bottom: var(--space-lg);
}
.id-tag {
  display: inline-flex; align-items: center;
  padding: 4px 12px; border-radius: var(--radius-pill);
  font-size: var(--text-caption); font-weight: 500;
  background-color: var(--color-surface-card);
  color: var(--color-ink);
}
.id-specs-title {
  font-size: var(--text-title-sm); font-weight: 500;
  color: var(--color-ink);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-hairline);
}
.id-specs-table {
  width: 100%; border-collapse: collapse;
}
.id-specs-table tr {
  border-bottom: 1px solid var(--color-hairline-soft);
}
.id-spec-name {
  padding: var(--space-sm) var(--space-md) var(--space-sm) 0;
  color: var(--color-muted);
  font-size: var(--text-body-sm);
  white-space: nowrap;
}
.id-spec-value {
  padding: var(--space-sm) 0;
  color: var(--color-ink);
  font-weight: 500;
  font-size: var(--text-body-sm);
}

/* ============================================
   stat_counter (sc-*)
   ============================================ */
/* 全宽主色带，与线上 about-stats 风格一致 */
section:has(.sc-grid) {
  /* padding-top: 0;
  padding-bottom: 0; */
  background: var(--color-primary);
}
section:has(.sc-grid) .container {
  background: transparent;
}
section:has(.sc-grid) .section-header .section-title,
section:has(.sc-grid) .section-header .section-description {
  color: rgba(255,255,255,0.9);
}
.sc-grid {
  display: flex;
  justify-content: space-between;
  /* padding: 3.5rem 0; */
  text-align: center;
}
.sc-card { 
  /* flex: 1;  */
  text-align: center; 
}
.sc-icon {
  width: 48px; height: 48px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.9);
  margin-bottom: 1rem;
}
.sc-icon svg { width: 24px; height: 24px; }
.sc-number {
  font-size: 2.5rem; font-weight: 800; line-height: 1;
  color: #fff;
  margin-bottom: 0.25rem;
}
.sc-suffix {
  font-size: 1.25rem; font-weight: 700;
  color: rgba(255,255,255,0.6);
}
.sc-label {
  font-size: 0.9rem; font-weight: 500;
  color: rgba(255,255,255,0.8);
  margin-top: 0.25rem;
}

@media (max-width: 768px) {
  .sc-grid { flex-wrap: wrap; gap: 1.5rem; padding: 2.5rem 0; }
  .sc-card { flex: 1 1 40%; }
  .sc-number { font-size: 2rem; }
}
@media (max-width: 480px) {
  .sc-grid { flex-direction: column; }
  .sc-card { flex: none; }
}

/* ============================================
   contact_info (ci-*)
   ============================================ */
.ci-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
}
.ci-card {
  text-align: center;
  padding: var(--space-lg);
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast);
}
.ci-card:hover { border-color: var(--color-muted-soft); }
.ci-icon {
  width: 48px; height: 48px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius-full);
  background-color: var(--color-surface-card);
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}
.ci-label {
  font-size: var(--text-caption); font-weight: 500;
  color: var(--color-muted);
  margin-bottom: var(--space-xs);
}
.ci-value {
  font-size: var(--text-body-md);
  color: var(--color-ink);
  text-decoration: none;
  word-break: break-all;
}
a.ci-value:hover { color: var(--color-primary); }
.ci-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 640px;
  margin: 0 auto;
}
.ci-list-row {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-hairline);
}
.ci-list-row:last-child {
  border-bottom: none;
}
.ci-list-row .ci-icon {
  margin-bottom: 0;
  flex-shrink: 0;
}
.ci-row-body {
  flex: 1;
  min-width: 0;
}

/* ============================================
   contact_form (cf-*)
   ============================================ */
.cf-layout {
  display: flex;
  flex-direction: var(--dir, row);
  gap: var(--space-xl);
  align-items: stretch;
}
.cf-map-col {
  flex: var(--map-ratio, 2);
  min-width: 0;
}
.cf-map-iframe {
  width: 100%; height: 100%; min-height: 400px;
  border: none; border-radius: var(--radius-lg);
}

/* RTE 富文本内嵌媒体：编辑态 DOM 在前端透明化 */
.rte-media-toolbar,
.rte-media-del { display: none !important; }
.rte-media-wrapper {
  display: contents !important;
  margin: 0 !important;
  padding: 0 !important;
  border: none !important;
  user-select: auto !important;
}
.rte-media-wrapper video,
.rte-media-wrapper iframe {
  width: 100% !important;
  display: block !important;
  border-radius: var(--radius-lg, 8px);
  margin: 1rem 0;
  min-height: 300px;
}

.cf-form-col {
  flex: var(--form-ratio, 1);
  min-width: 0;
}
.cf-form {
  display: flex; flex-direction: column; gap: var(--space-md);
}
.cf-field { display: flex; flex-direction: column; }
.cf-label {
  font-size: var(--text-body-sm); font-weight: 500;
  color: var(--color-body-strong);
  margin-bottom: var(--space-xs);
}
.cf-input {
  display: block; width: 100%;
  padding: 10px 14px; height: 40px;
  font-size: var(--text-body-md); line-height: var(--leading-body);
  color: var(--color-ink);
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.cf-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(204,120,92,0.15);
}
.cf-textarea {
  min-height: 120px; resize: vertical;
}
.cf-actions {
  display: flex; justify-content: var(--btn-align, flex-start);
}
.cf-btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 20px; height: 40px;
  font-size: var(--text-button); font-weight: 500; line-height: var(--leading-button);
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  border: none; border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}
.cf-btn:hover { background-color: var(--color-primary-hover); }
.cf-form-status {
  margin: var(--space-sm) 0 0;
  font-size: var(--text-body-sm);
  color: var(--color-text-secondary);
}

/* ============================================
   logo_cloud (lc-*)
   ============================================ */
.lc-grid {
  display: grid;
  grid-template-columns: repeat(var(--cols, 4), 1fr);
  gap: var(--space-lg);
  align-items: center; justify-items: center;
}
.lc-logo {
  max-height: 48px; width: auto;
  filter: grayscale(100%);
  opacity: 0.6;
  transition: filter var(--transition-base), opacity var(--transition-base);
}
.lc-logo:hover {
  filter: grayscale(0%);
  opacity: 1;
}

/* ============================================
   process_steps (ps-*)
   ============================================ */
.ps-track {
  display: grid;
  gap: var(--space-lg);
  max-width: 100%;
}
.ps-track--horizontal {
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  overflow-x: auto;
}
.ps-track--vertical {
  grid-template-columns: 1fr;
  gap: 0;
  width: 500px;
  margin: 0 auto;
}
.ps-step {
  position: relative;
  text-align: center;
}
.ps-track--vertical .ps-step {
  display: flex;
  gap: var(--space-lg);
  text-align: left;
  padding-bottom: var(--space-lg);
  border-left: 2px solid var(--color-border, #e2e8f0);
  padding-left: var(--space-lg);
  margin-left: var(--space-sm);
}
.ps-track--vertical .ps-step:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}
.ps-marker {
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-sm);
  position: relative;
}
.ps-track--vertical .ps-marker {
  position: absolute;
  left: 0;
  top: 0;
  transform: translateX(-50%);
  margin-bottom: 0;
}
.ps-number {
  display: flex; align-items: center; justify-content: center;
  width: 2rem; height: 2rem;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: var(--text-body-sm);
  font-weight: 700;
  flex-shrink: 0;
}
.ps-track--vertical .ps-number {
  width: 1.5rem; height: 1.5rem;
  font-size: var(--text-caption);
}
.ps-icon {
  display: flex; align-items: center; justify-content: center;
  width: 2.5rem; height: 2.5rem;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-on-primary);
  flex-shrink: 0;
  margin: 0 auto var(--space-sm);
}
.ps-icon svg {
  width: 24px; height: 24px;
  stroke: var(--color-on-primary);
}
.ps-title {
  font-size: var(--text-title-sm); font-weight: 500;
  color: var(--color-ink);
  margin-bottom: var(--space-xs);
}
.ps-desc {
  font-size: var(--text-body-sm);
  color: var(--color-muted);
  line-height: var(--leading-body);
}

/* 横向步骤间的连接线 */
.ps-track--horizontal .ps-step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 1.25rem;   /* 对齐 marker icon 中心 */
  right: -0.75rem;
  width: 1.5rem;
  height: 2px;
  background: var(--color-border, #e2e8f0);
}

/* 数字序号变体：CSS counter 自增 1/2/3... */
.ps-track--numbered {
  counter-reset: ps-counter;
}
.ps-track--numbered .ps-step {
  counter-increment: ps-counter;
}
.ps-track--numbered .ps-number::before {
  content: counter(ps-counter);
}

@media (max-width: 768px) {
  .ps-track--horizontal {
    grid-auto-flow: row;
    overflow-x: visible;
  }
  .ps-track--horizontal .ps-step:not(:last-child)::after {
    display: none;
  }
  .ps-track--vertical {
    width: 100%;
  }
}

/* ============================================
   text_content (tc-*)
   ============================================ */
.tc-block {
  /* max-width: var(--content-max-narrow); */
  margin: 0 auto;
  text-align: var(--text-align, left);
}
.tc-body {
  font-size: var(--text-body-md);
  line-height: var(--leading-body);
  color: var(--color-body);
}
.tc-body h2, .tc-body h3 {
  font-family: var(--font-display);
  color: var(--color-ink);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
}
.tc-body h2 { font-size: var(--text-display-sm); }
.tc-body h3 { font-size: var(--text-title-lg); }
.tc-body p { margin-bottom: var(--space-md); }
.tc-body ul, .tc-body ol { 
  /* margin-bottom: var(--space-md);  */
  padding-left: var(--space-lg); 
}
.tc-body ul { list-style: disc; }
.tc-body ol { list-style: decimal; }
.tc-body li { margin-bottom: var(--space-xs); }
.tc-body blockquote {
  border-left: 3px solid var(--color-primary);
  padding-left: var(--space-md); margin-left: 0;
  color: var(--color-muted); font-style: italic;
}
.tc-body code {
  font-family: var(--font-mono);
  font-size: var(--text-code);
  background-color: var(--color-surface-soft);
  padding: 2px 6px; border-radius: var(--radius-xs);
}
.tc-body pre {
  background-color: var(--color-surface-dark);
  color: var(--color-on-dark);
  padding: var(--space-md); border-radius: var(--radius-md);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: var(--text-code);
  line-height: var(--leading-code);
}
.tc-body table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-lg) 0;
  display: block;
  overflow-x: auto;
}
.tc-body th,
.tc-body td {
  border: 1px solid var(--color-hairline);
  padding: 0.65rem 0.8rem;
  min-width: 8rem;
  text-align: left;
  vertical-align: top;
}
.tc-body table[data-rte-border="0"],
.tc-body table[data-rte-border="0"] th,
.tc-body table[data-rte-border="0"] td {
  border: 0 !important;
}
.tc-body table[data-rte-widths="1"] {
  display: table !important;
  overflow: visible;
  table-layout: fixed;
}
.tc-body table[data-rte-widths="1"] th,
.tc-body table[data-rte-widths="1"] td {
  min-width: 0;
}
.tc-body th {
  background: var(--color-surface-card);
  color: var(--color-ink);
  font-weight: 500;
}
.tc-body tr:nth-child(even) td {
  background: color-mix(in srgb, var(--color-surface-card), var(--color-primary) 4%);
}
.tc-body tr:nth-child(odd) td {
  background: var(--color-canvas);
}

/* ============================================
   item_data (item-data-*)
   ============================================ */
.detail-component {
  padding-top: 18px;
  padding-bottom: 18px;
}
.detail-component + .detail-component {
  padding-top: 8px;
}
.detail-component .section-title {
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0;
  margin: 0 0 16px;
}
@media (max-width: 768px) {
  .detail-component .section-title {
    font-size: 1.35rem;
  }
}
.detail-link {
  padding-top: 8px;
  padding-bottom: 8px;
}
.detail-link + .detail-link {
  padding-top: 0;
}
.detail-text {
  padding-top: var(--space-xs);
}
.detail-specs .container,
.detail-table .container,
.detail-text .container,
.detail-content-blocks .container,
.detail-link .container,
.detail-intro .container,
.detail-features .container,
.detail-files .container,
.detail-faq .container,
.detail-related .container {
  max-width: min(var(--container-max), 1400px);
}
.detail-table table {
  font-size: var(--text-body-sm);
}
.detail-custom-table {
  border-radius: 8px;
  overflow: hidden;
  background: var(--color-canvas);
}
.detail-custom-table a {
  font-weight: 600;
}
.detail-table td {
  padding: 12px 14px !important;
  border-color: var(--color-border) !important;
}
.detail-spec-list {
  display: block;
  margin: 0;
  font-size: var(--text-body-sm);
  border: 1px solid var(--color-border);
  border-bottom: 0;
  border-radius: 8px;
  overflow: hidden;
  background: var(--color-canvas);
}
.detail-spec-row {
  display: grid;
  grid-template-columns: repeat(var(--detail-spec-columns, 2), minmax(0, 1fr));
  gap: 0;
  padding: 0;
}
.detail-spec-cell {
  min-width: 0;
  overflow-wrap: anywhere;
  padding: 12px 16px;
  border-right: 1px solid var(--color-border);
}
.detail-spec-cell:last-child {
  border-right: 0;
}
.detail-spec-cell--name {
  color: var(--color-ink);
  font-weight: 600;
  background: color-mix(in srgb, var(--color-surface-card), var(--color-primary) 3%);
}
.detail-spec-cell--desc,
.detail-spec-cell--value {
  color: var(--color-body);
}
.detail-intro-title {
  font-family: var(--font-sans);
  font-size: clamp(1.45rem, 1.25rem + 0.8vw, 2rem);
  line-height: 1.18;
  font-weight: 600;
  letter-spacing: 0;
  margin: 0 0 10px;
}
.detail-intro-summary {
  max-width: 760px;
  margin: 0 0 16px;
  color: var(--color-body);
  font-size: var(--text-body-md);
  line-height: 1.6;
}
.detail-intro--center .detail-intro-summary {
  margin-left: auto;
  margin-right: auto;
}
.detail-intro-category,
.detail-intro-price {
  color: var(--color-primary);
  font-size: var(--text-body-sm);
  font-weight: 600;
  margin-bottom: 8px;
}
.detail-intro-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-start;
  margin-top: 2px;
}
.detail-intro--center .detail-intro-tags {
  justify-content: center;
}
.detail-intro-tag {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 11px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-primary), white 88%);
  color: var(--color-primary);
  font-size: var(--text-body-xs);
  font-weight: 600;
}
.detail-feature-grid,
.detail-related-grid {
  display: grid;
  grid-template-columns: repeat(var(--detail-columns, 3), minmax(0, 1fr));
  gap: 14px;
}
.detail-feature-grid {
  justify-content: center;
  align-items: stretch;
  /* max-width: 900px; */
  margin-inline: auto;
}
.detail-feature-card,
.detail-related-card,
.detail-file-item,
.detail-faq-item {
  border: 1px solid var(--color-border);
  background: var(--color-canvas);
}
.detail-feature-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  min-height: 128px;
  padding: 18px;
  border-radius: 8px;
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.03);
  transition: border-color .15s ease, transform .15s ease, box-shadow .15s ease;
}
.detail-feature-card:hover {
  border-color: color-mix(in srgb, var(--color-primary), var(--color-border) 45%);
  box-shadow: 0 8px 22px rgba(15, 23, 42, 0.06);
  transform: translateY(-1px);
}
.detail-feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  padding: 0;
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-primary), white 89%);
  color: var(--color-primary);
  font-weight: 700;
  font-size: var(--text-body-xs);
  margin-bottom: 12px;
}
.detail-feature-icon svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
}
.detail-feature-icon--text {
  width: auto;
  min-width: 38px;
  padding: 0 10px;
  border-radius: 999px;
}
.detail-feature-card:not(:has(.detail-feature-icon))::before {
  content: "";
  display: block;
  width: 28px;
  height: 3px;
  border-radius: 999px;
  background: var(--color-primary);
  margin: 0 auto 14px;
}
.detail-feature-card h3,
.detail-faq-item h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 7px;
  letter-spacing: 0;
}
.detail-feature-card p,
.detail-faq-item p {
  margin: 0;
  color: var(--color-body);
  font-size: var(--text-body-sm);
  line-height: 1.62;
}
/* ── 图文列组件 detail_columns：横线小标题 + N 列图文 ── */
.detail-columns-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 28px;
}
/* 两侧横线：用伪元素画横线，flex:1 自动占满两侧 */
.detail-columns-header::before,
.detail-columns-header::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: color-mix(in srgb, var(--color-primary), transparent 55%);
}
.detail-columns-header--left::before { display: none; }
.detail-columns-header--right::after { display: none; }
.detail-columns-heading {
  flex: 0 0 auto;
  font-size: var(--text-body-sm);
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--color-primary);
  white-space: nowrap;
}
.detail-columns-grid {
  display: grid;
  grid-template-columns: repeat(var(--detail-columns, 3), minmax(0, 1fr));
  gap: 28px 24px;
  align-items: start;
}
.detail-columns-cell {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.detail-columns-media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
}
.detail-columns-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--color-heading, var(--color-body));
}
.detail-columns-text {
  margin: 0;
  color: var(--color-body);
  font-size: var(--text-body-sm);
  line-height: 1.7;
}
.detail-text-body {
  max-width: 860px;
  color: var(--color-body);
  line-height: 1.7;
}
.detail-text--center .detail-text-body {
  margin-left: auto;
  margin-right: auto;
}
.detail-content-block-list {
  display: grid;
  gap: 24px;
}
.detail-content-block {
  min-width: 0;
}
.detail-content-block h3 {
  font-size: clamp(1.1rem, 1rem + 0.3vw, 1.35rem);
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: 0;
  margin: 0 0 10px;
}
.detail-content-block p {
  margin: 0;
  color: var(--color-body);
  font-size: var(--text-body-md);
  line-height: 1.7;
  overflow-wrap: anywhere;
}
.detail-content-richtext {
  min-width: 0;
  color: var(--color-body);
  font-size: var(--text-body-md);
  line-height: 1.7;
  overflow-wrap: anywhere;
}
.detail-content-richtext > :first-child {
  margin-top: 0;
}
.detail-content-richtext > :last-child {
  margin-bottom: 0;
}
.detail-content-richtext p + p,
.detail-content-richtext p + ul,
.detail-content-richtext p + ol,
.detail-content-richtext ul + p,
.detail-content-richtext ol + p {
  margin-top: 0.75em;
}
.detail-content-richtext ul,
.detail-content-richtext ol {
  margin: 0.75em 0;
  padding-left: 1.5em;
}
.detail-content-richtext a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.detail-content-richtext blockquote {
  margin: 1em 0;
  padding-left: 1em;
  border-left: 3px solid var(--color-border);
  color: var(--color-muted);
}
.detail-content-note .detail-content-richtext,
.detail-content-note .detail-content-richtext p,
.detail-content-note .detail-content-richtext li {
  color: inherit;
}
.detail-content-heading h2 {
  font-size: clamp(1.35rem, 1.12rem + 0.7vw, 1.85rem);
  line-height: 1.24;
  font-weight: 600;
  letter-spacing: 0;
  margin: 0 0 10px;
}
.detail-content-block figure {
  margin: 0;
}
.detail-content-block img,
.detail-content-block video {
  display: block;
  max-width: 100%;
  /* border-radius: 8px; */
  background: var(--color-surface-card);
}
.detail-content-block img {
  height: auto;
}
.detail-content-block video {
  /* max-height: 640px; */
}
.detail-content-block figcaption {
  margin-top: 8px;
  color: var(--color-muted);
  font-size: var(--text-body-sm);
  line-height: 1.5;
}
.detail-content-text {
  /* max-width: 860px; */
}
.detail-content-image,
.detail-content-video {
  /* max-width: 960px; */
}
.detail-content-media-text {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(0, 1fr);
  gap: 28px;
  align-items: center;
}
.detail-content-media-text--reverse {
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.9fr);
}
.detail-content-media-text--reverse figure {
  order: 2;
}
.detail-content-copy {
  min-width: 0;
}
.detail-content-gallery-grid {
  display: grid;
  grid-template-columns: repeat(var(--detail-gallery-columns, 3), minmax(0, 1fr));
  gap: 20px;
}
.detail-content-gallery-item {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: var(--color-surface-card);
}
.detail-content-gallery-grid .detail-content-gallery-item img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.detail-content-gallery-grid .detail-content-gallery-caption {
  margin: 0;
  padding: 10px 12px;
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  background: var(--color-surface-card);
  font-size: var(--text-body-sm);
  line-height: 1.5;
}
.detail-content-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-canvas);
}
.detail-content-inline-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-body-sm);
}
.detail-content-inline-table td {
  min-width: 120px;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
}
.detail-content-note {
  /* max-width: 900px; */
  padding: 16px 18px;
  border: 1px solid color-mix(in srgb, var(--color-primary), var(--color-border) 55%);
  border-left: 4px solid var(--color-primary);
  border-radius: 8px;
  background: color-mix(in srgb, var(--color-primary), white 94%);
}
.detail-content-note--success {
  border-left-color: #16a34a;
  background: #f0fdf4;
}
.detail-content-note--warning {
  border-left-color: #d97706;
  background: #fffbeb;
}
.detail-content-note--danger {
  border-left-color: #dc2626;
  background: #fef2f2;
}
.detail-content-embed iframe {
  display: block;
  width: 100%;
  min-height: 420px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface-card);
}
.detail-link-text {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  font-weight: 600;
}
.detail-link-text::after {
  content: "→";
  margin-left: 6px;
  transition: transform .15s ease;
}
.detail-link-text:hover::after {
  transform: translateX(2px);
}
.detail-file-list,
.detail-faq-list {
  display: grid;
  gap: 0;
}
.detail-faq-list {
  border: 1px solid var(--color-border);
  border-bottom: 0;
  border-radius: 8px;
  overflow: hidden;
  background: var(--color-canvas);
}
.detail-file-list {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
}
.detail-file-item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) auto;
  align-items: start;
  gap: 12px 14px;
  min-height: 104px;
  padding: 18px;
  color: var(--color-primary);
  text-decoration: none;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: var(--color-canvas);
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}
.detail-file-item:hover {
  border-color: color-mix(in srgb, var(--color-primary), var(--color-border) 55%);
  box-shadow: 0 10px 26px color-mix(in srgb, var(--color-primary), transparent 90%);
  transform: translateY(-2px);
}
.detail-file-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 10px;
  background: color-mix(in srgb, var(--color-primary), white 90%);
  color: var(--color-primary);
}
.detail-file-icon svg {
  width: 23px;
  height: 23px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.detail-file-main {
  display: grid;
  min-width: 0;
  gap: 5px;
  padding-top: 2px;
}
.detail-file-name {
  font-size: var(--text-body-md);
  font-weight: 650;
  color: var(--color-ink);
  overflow-wrap: anywhere;
}
.detail-file-desc {
  color: var(--color-body);
  font-size: var(--text-body-sm);
  line-height: 1.5;
  overflow-wrap: anywhere;
}
.detail-file-actions {
  display: grid;
  justify-items: end;
  align-content: space-between;
  gap: 12px;
  min-height: 68px;
}
.detail-file-meta {
  color: var(--color-primary);
  font-size: var(--text-body-xs);
  font-weight: 600;
  padding: 4px 9px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-primary), white 92%);
  white-space: nowrap;
}
.detail-file-action {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--color-primary);
  font-size: var(--text-body-sm);
  font-weight: 600;
  white-space: nowrap;
}
.detail-file-action svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform .18s ease;
}
.detail-file-item:hover .detail-file-action svg {
  transform: translateY(2px);
}
.detail-faq-item {
  padding: 16px 18px;
  border: 0;
  background: transparent;
}
.detail-faq-item + .detail-faq-item {
  border-top: 1px solid var(--color-border);
}
.detail-faq-item:last-child {
  border-bottom: 1px solid var(--color-border);
}
.detail-faq-item h3,
.detail-faq-item p {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
}
.detail-faq-item h3 span,
.detail-faq-item p span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1;
}
.detail-faq-item h3 span {
  background: color-mix(in srgb, var(--color-primary), white 88%);
  color: var(--color-primary);
}
.detail-faq-item p span {
  background: var(--color-surface-card);
  color: var(--color-body);
}
.detail-related-card {
  display: flex;
  grid-template-rows: none;
  gap: 0;
  padding: 0;
  border-radius: 8px;
  color: inherit;
  text-decoration: none;
  overflow: hidden;
  transition: border-color .15s ease, transform .15s ease, box-shadow .15s ease;
}
.detail-related-card:hover {
  border-color: color-mix(in srgb, var(--color-primary), var(--color-border) 35%);
  box-shadow: 0 8px 22px rgba(15, 23, 42, 0.07);
  transform: translateY(-1px);
}
.detail-related-media {
  display: block;
  width: 100%;
  aspect-ratio: 4/3;
  background: color-mix(in srgb, var(--color-surface-card), var(--color-primary) 4%);
}
.detail-related-media:empty::before {
  content: "";
  display: block;
  width: 100%;
  height: 100%;
  background:
    linear-gradient(135deg, transparent 49%, var(--color-border) 50%, transparent 51%),
    linear-gradient(45deg, transparent 49%, var(--color-border) 50%, transparent 51%);
}
.detail-related-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.detail-related-body {
  display: flex;
  gap: 0;
  padding: var(--space-md) var(--space-lg) var(--space-lg);
}
.detail-related-card strong {
  font-weight: 600;
  font-size: var(--text-body-sm);
  line-height: 1.45;
  color: var(--color-ink);
}
.detail-related-body > .fp-card-desc {
  color: var(--color-body);
  font-size: var(--text-body-xs);
  line-height: 1.5;
  display: -webkit-box;
  overflow: hidden;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.detail-related.fp-section .fp-viewport {
  margin-top: 0;
  padding: 2px 0 4px;
  overflow: hidden;
}
.detail-related.fp-section .fp-viewport::before,
.detail-related.fp-section .fp-viewport::after {
  display: none;
}
.detail-related.fp-section .fp-viewport::before {
  left: 0;
}
.detail-related.fp-section .fp-viewport::after {
  right: 0;
}
.detail-related.fp-section .section-header {
  margin-bottom: var(--space-lg);
}
.detail-related.fp-section .fp-track {
  will-change: transform;
}
.detail-related.fp-section .fp-arrow {
  display: none;
}
.detail-related.fp-section .fp-card {
  transform-origin: center;
}
@media (max-width: 768px) {
  .detail-component {
    padding-top: 14px;
    padding-bottom: 14px;
  }
  .detail-spec-row {
    grid-template-columns: 1fr;
  }
  .detail-spec-cell {
    border-right: 0;
  }
  .detail-feature-grid,
  .detail-related-grid {
    grid-template-columns: 1fr;
  }
  /* 手机端图文列自动单列 */
  .detail-columns-grid {
    grid-template-columns: 1fr;
  }
  .detail-content-block-list {
    gap: 18px;
  }
  .detail-content-media-text,
  .detail-content-media-text--reverse {
    grid-template-columns: 1fr;
  }
  .detail-content-media-text--reverse figure {
    order: 0;
  }
  .detail-content-gallery-grid {
    grid-template-columns: 1fr 1fr;
  }
  .detail-content-embed iframe {
    min-height: 260px;
  }
  .detail-related.fp-section .fp-viewport {
    padding-left: 0;
    padding-right: 0;
  }
  .detail-file-item {
    grid-template-columns: 42px minmax(0, 1fr) auto;
    min-height: 96px;
    padding: 15px;
  }
  .detail-file-icon {
    width: 42px;
    height: 42px;
  }
  .detail-file-actions {
    min-height: 64px;
  }
}
@media (max-width: 480px) {
  .detail-content-gallery-grid {
    grid-template-columns: 1fr;
  }
  .detail-file-list {
    grid-template-columns: 1fr;
  }
  .detail-file-item {
    grid-template-columns: 42px minmax(0, 1fr);
  }
  .detail-file-actions {
    grid-column: 2;
    grid-template-columns: auto 1fr;
    justify-items: start;
    align-items: center;
    min-height: 0;
  }
}
.item-data-section { }
.item-data-article { margin: 0 auto; }
.item-data-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: var(--space-xxl);
  align-items: start;
  margin-bottom: 0;
  border-bottom: 1px solid #efefef;
  padding-bottom: 20px;
}
.item-data-layout:has(.detail-images[hidden]) {
  grid-template-columns: minmax(0, 1fr);
}
.item-data-gallery:has(.detail-images[hidden]) {
  display: none;
}
.item-data-gallery {
  display: grid;
  gap: var(--space-md);
}
.item-data-media {
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--color-surface-card);
}
.item-data-media img,
.item-data-media video,
.item-data-media iframe {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 0;
}
.item-data-media iframe {
  min-height: 420px;
}
.detail-carousel-stage {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--color-surface-card);
}
.detail-images {
  position: relative;
  min-height: 520px;
}
.detail-gallery-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}
.detail-gallery-img.active {
  opacity: 1;
  pointer-events: auto;
  cursor: zoom-in;
}
.detail-carousel-btn,
.detail-zoom-btn,
.detail-lightbox-close,
.detail-lightbox-nav {
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.92);
  color: var(--color-ink);
  box-shadow: var(--shadow-md);
  display: inline-grid;
  place-items: center;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
}
.detail-carousel-btn svg,
.detail-zoom-btn svg {
  width: 22px;
  height: 22px;
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.25;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.detail-carousel-btn {
  position: absolute;
  top: 50%;
  z-index: 2;
  transform: translateY(-50%);
}
.detail-carousel-prev { left: var(--space-md); }
.detail-carousel-next { right: var(--space-md); }
.detail-zoom-btn {
  position: absolute;
  right: var(--space-md);
  bottom: var(--space-md);
  z-index: 2;
}
.detail-thumbs-wrap {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) 36px;
  align-items: center;
  gap: var(--space-xs);
}
.detail-thumbs {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: nowrap;
  min-width: 0;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-behavior: smooth;
  scrollbar-width: none;
}
.detail-thumbs::-webkit-scrollbar {
  display: none;
}
.detail-thumbs-nav {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: var(--color-surface-card);
  color: var(--color-ink);
  padding: 0;
  line-height: 0;
  cursor: pointer;
  transition: opacity var(--duration-fast) var(--ease-standard), border-color var(--duration-fast) var(--ease-standard);
}
.detail-thumbs-nav svg {
  display: block;
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.detail-thumbs-nav:hover:not(:disabled) {
  border-color: var(--color-primary);
}
.detail-thumbs-nav:disabled {
  cursor: default;
  opacity: 0.35;
}
.detail-thumb {
  flex: 0 0 auto;
  width: 76px;
  height: 76px;
  padding: 0;
  overflow: hidden;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  background: var(--color-surface-card);
  cursor: pointer;
}
.detail-thumb.active {
  border-color: var(--color-primary);
}
.detail-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.detail-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 64px;
  background: rgba(0, 0, 0, 0.86);
}
.detail-lightbox.open { display: flex; }
.detail-lightbox-img {
  max-width: min(1100px, 86vw);
  max-height: 82vh;
  object-fit: contain;
}
.detail-lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
}
.detail-lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}
.detail-lightbox-prev { left: 20px; }
.detail-lightbox-next { right: 20px; }
.item-data-info {
  position: sticky;
  top: calc(var(--header-height) + var(--space-lg));
}
.item-data-category {
  display: inline-flex;
  align-items: center;
  margin-bottom: var(--space-sm);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background: var(--color-surface-card);
  color: var(--color-muted);
  font-size: var(--text-caption);
  font-weight: 500;
}
.item-data-title {
  margin: 0 0 var(--space-sm);
  font-family: var(--font-display);
  font-size: var(--text-display-md);
  font-weight: 400;
  line-height: var(--leading-display-md);
  letter-spacing: var(--tracking-display-md);
  color: var(--color-ink);
}
.detail-component .item-data-title,
.detail-component .section-title {
  font-family: var(--font-sans);
  letter-spacing: normal;
}
.item-data-date {
  margin-bottom: var(--space-lg);
  color: var(--color-muted);
  font-size: var(--text-body-sm);
}
.item-data-tags {
  display: flex; flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}
.item-data-tag {
  display: inline-flex; align-items: center;
  padding: 4px 12px; border-radius: var(--radius-pill);
  font-size: var(--text-caption);
  font-weight: 500;
  background-color: var(--color-surface-card);
  color: var(--color-ink);
}
.badge-primary {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
}
.item-data-price {
  margin-top: var(--space-md);
  font-size: var(--text-title-md);
  font-weight: 500;
  color: var(--color-primary);
}
.item-data-desc {
  margin: 0 0 var(--space-xl);
  line-height: var(--leading-body);
  color: var(--color-muted);
  font-size: var(--text-body-md);
}
.item-data-desc ul,
.item-data-desc ol {
  margin: 0 0 var(--space-md) 1.25rem;
  padding-left: 1.25rem;
}
.item-data-desc ul {
  list-style: disc;
}
.item-data-desc ol {
  list-style: decimal;
}
.item-data-desc li {
  margin: 0.35rem 0;
}
.item-data-body {
  line-height: var(--leading-body);
  font-size: var(--text-body-md);
  color: var(--color-body);
  padding-top: var(--space-lg);
  border-top: 2px solid var(--color-hairline);
}
.item-data-body ul,
.item-data-body ol {
  margin: 0 0 var(--space-md) 1.25rem;
  padding-left: 1.25rem;
}
.item-data-body ul {
  list-style: disc;
}
.item-data-body ol {
  list-style: decimal;
}
.item-data-body li {
  margin: 0.35rem 0;
}
.item-data-body a {
  color: var(--color-primary);
  text-decoration: underline;
}
.item-data-body table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-lg) 0;
  display: block;
  overflow-x: auto;
}
.item-data-body th,
.item-data-body td {
  border: 1px solid var(--color-hairline);
  padding: 0.65rem 0.8rem;
  min-width: 8rem;
  text-align: left;
  vertical-align: top;
}
.item-data-body table[data-rte-border="0"],
.item-data-body table[data-rte-border="0"] th,
.item-data-body table[data-rte-border="0"] td {
  border: 0 !important;
}
.item-data-body table[data-rte-widths="1"] {
  display: table !important;
  overflow: visible;
  table-layout: fixed;
}
.item-data-body table[data-rte-widths="1"] th,
.item-data-body table[data-rte-widths="1"] td {
  min-width: 0;
}
.item-data-body th {
  background: var(--color-surface-card);
  color: var(--color-ink);
  font-weight: 500;
}
.item-data-body tr:nth-child(even) td {
  background: color-mix(in srgb, var(--color-surface-card), var(--color-primary) 2%);
}
.item-data-body tr:nth-child(odd) td {
  background: var(--color-canvas);
}
.item-data-body img {
  max-width: 100%; 
  margin: 0 auto;
}

/* ============================================
   data_grid (dg-*)
   ============================================ */
.dg-list {
  display: grid;
  grid-template-columns: repeat(var(--cols, 3), 1fr);
  gap: var(--space-lg);
}
.dg-card {
  display: flex; flex-direction: column;
  text-decoration: none; color: inherit;
  background-color: var(--color-surface-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  border: 1px solid var(--color-hairline);
}
.dg-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: inherit;
}
.dg-card-image {
  position: relative;
  /* margin: calc(-1 * var(--space-xl)); */
  margin-bottom: var(--space-md);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.dg-card-image img {
  width: 100%; aspect-ratio: 1; object-fit: cover;
  transition: transform var(--transition-slow);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.dg-card:hover .dg-card-image img { transform: scale(1.03); }
.dg-card-category {
  position: absolute; top: var(--space-sm); left: var(--space-sm);
  display: inline-flex; align-items: center;
  padding: 4px 12px; border-radius: var(--radius-pill);
  font-size: var(--text-caption); font-weight: 500;
  background-color: var(--color-surface-card);
  color: var(--color-ink);
}
.dg-card-body {
  display: flex; flex-direction: column;
  padding: 0 var(--space-md) var(--space-md);
}
.dg-card-title {
  font-size: var(--text-title-sm); font-weight: 500;
  color: var(--color-ink);
  margin-bottom: var(--space-xs);
}
.dg-card-date {
  font-size: var(--text-caption);
  color: var(--color-muted-soft);
  margin-bottom: var(--space-sm);
}
.dg-card-desc {
  font-size: var(--text-body-sm);
  color: var(--color-muted);
  line-height: var(--leading-body);
  margin-bottom: var(--space-sm);
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  overflow: hidden;
}
.detail-media-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}
.detail-actions .detail-media-actions {
  margin-top: 0;
}
.detail-media-action.is-disabled {
  cursor: not-allowed;
  opacity: 0.55;
}
.detail-media-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 var(--space-lg);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: var(--text-button);
  font-weight: 500;
  line-height: 1;
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}
.detail-media-action--primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
}
.detail-media-action--primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: var(--color-on-primary);
}
.detail-media-action--secondary {
  background: transparent;
  color: var(--color-primary);
}
.detail-media-action--secondary:hover {
  background: color-mix(in srgb, var(--color-primary), transparent 90%);
  color: var(--color-primary-hover);
}
.dg-card-tags {
  display: flex; flex-wrap: wrap; gap: var(--space-xs);
  margin-top: auto;
}
.dg-card-tags--visual-hidden {
  display: none !important;
}
.dg-card-detail-btn {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  margin-top: var(--space-md);
  padding: 0 var(--space-md);
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-size: var(--text-button);
  font-weight: 500;
  line-height: 1;
}
.dg-card:hover .dg-card-detail-btn {
  background: var(--color-primary-hover);
}
.dg-card-tag {
  display: inline-flex; align-items: center;
  padding: 2px 10px; border-radius: var(--radius-pill);
  font-size: var(--text-caption);
  background: transparent;
  border: 1px solid var(--color-hairline);
  color: var(--color-muted);
}
.dg-card-price {
  color: var(--color-primary);
  font-size: var(--text-body-sm); font-weight: 500;
  margin-bottom: var(--space-sm);
}
.dg-card-img { }

/* 卡片排版变体 */
.dg-list--horizontal {
  grid-template-columns: 1fr !important;
}
.dg-card--horizontal {
  flex-direction: row;
  align-items: stretch;           /* stretch → 图文等高（原 center 只在图片定宽时合理） */
}
.dg-card--horizontal .dg-card-image {
  flex: 0 0 50%;                  /* 图片占 50% 宽（原 240px 定宽 → 等比分配） */
  min-height: 200px;
  margin-bottom: 0;
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}
.dg-card--horizontal .dg-card-image img {
  height: 100%;                   /* 填满图片容器（原 200px 固定高不适用 50% 布局） */
}
.dg-card--horizontal .dg-card-body {
  flex: 0 0 50%;                  /* 文字占 50% 宽（原 flex:1 → 对半分） */
  min-width: 0;
  display: block;                 /* 取消 flex 列布局，让文字自然上下堆叠 */
}
.dg-card--horizontal-reverse {
  flex-direction: row-reverse;
  align-items: stretch;           /* 同上：图文等高 */
}
.dg-card--horizontal-reverse .dg-card-image {
  flex: 0 0 50%;                  /* 图片占 50% 宽 */
  min-height: 200px;
  margin-bottom: 0;
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}
.dg-card--horizontal-reverse .dg-card-image img {
  height: 100%;                   /* 填满图片容器 */
}
.dg-card--horizontal-reverse .dg-card-body {
  flex: 0 0 50%;                  /* 文字占 50% 宽 */
  min-width: 0;
  display: block;                 /* 取消 flex 列布局，让文字自然上下堆叠 */
}
.dg-card--no-border {
  border: none !important;
  box-shadow: none;
}

/* ====== Data list showcase block ====== */
.data-list-showcase .data-list-showcase__items {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg, 32px);
}

.data-list-showcase .data-list-showcase__item {
  display: block;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  overflow: visible;
  border-bottom: 1px solid #ebebeb;
  padding-top: var(--space-xxl);
  padding-bottom: var(--space-xxl);
}

.data-list-showcase .data-list-showcase__item:hover {
  border-color: transparent;
  box-shadow: none;
}

.data-list-showcase .data-list-showcase__card {
  padding: 0;
  background: transparent;
}

.data-list-showcase .hl-grid {
  min-height: 360px;
}

.data-list-showcase .data-list-showcase__item:nth-child(even) .hl-grid {
  flex-direction: row-reverse;
}

/* empty / hidden states */
.dg-card--hidden,
.dg-card--page-hidden,
.dg-card--filter-hidden { display: none !important; }
.dg-empty-state {
  margin-top: var(--space-xl);
  padding: var(--space-xl);
  border: 1px dashed var(--color-hairline);
  border-radius: var(--radius-md);
  color: var(--color-muted);
  text-align: center;
}

/* filter panel */
.dg-search-panel.module-list-toolbar {
  width: 100%;
  margin: 0 0 var(--space-lg, 3rem);
  justify-content: flex-start;  /* 搜索框和计数文字紧凑排列，不撑满整行 */
}

.dg-sort-controls {
  display: inline-flex;
  gap: 0;
  margin-left: auto;
  flex: 0 0 auto;
}
.dg-sort-btn {
  display: inline-grid;
  width: 2rem;
  height: 2rem;
  padding: 0;
  place-items: center;
  border: 0;
  background: transparent;
  color: var(--color-muted);
  cursor: pointer;
}
.dg-sort-icon {
  display: inline-block; width: 8px; height: 8px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
}
.dg-sort-btn[data-sort-direction="asc"] .dg-sort-icon { transform: translateY(2px) rotate(225deg); }
.dg-sort-btn[data-sort-direction="desc"] .dg-sort-icon { transform: translateY(-2px) rotate(45deg); }
.dg-sort-btn:hover,
.dg-sort-btn.active { color: var(--color-accent, #0d9488); }

.dg-filter-panel {
  display: grid; gap: var(--space-md);
  margin-bottom: var(--space-xl);
  padding: var(--space-md);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-md);
  background-color: var(--color-canvas);
}
.dg-filter-group {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: var(--space-sm); align-items: start;
}
/* 有折叠按钮时：新增第 3 列专门放按钮。按钮和标签是并排的独立 grid 格子，
   标签只在 1fr 列内换行，物理上不可能与按钮重叠（旧的绝对定位方案会压标签，已废弃） */
.dg-filter-group--overflow {
  grid-template-columns: 92px 1fr auto;
}
.dg-filter-label {
  color: var(--color-muted);
  font-size: var(--text-body-sm); font-weight: 500;
  line-height: 2rem;
}
.dg-filter-options {
  display: flex; flex-wrap: wrap; gap: var(--space-xs);
  overflow: hidden;
  transition: max-height 0.3s ease;
}
/* 折叠态：限制约 2 行高度 */
.dg-filter-options[data-collapsed="true"] {
  max-height: 75px;
}
.dg-filter-options[data-collapsed="false"] {
  max-height: none;
}
/* 折叠切换按钮：作为 group 的第 3 个 grid 子元素，落在第 3 列（auto 宽），
   与标签列并排隔离、与首行标签齐平。不再用绝对定位，杜绝遮挡标签 */
.dg-filter-toggle {
  display: none;
  width: 2rem; height: 2rem;
  flex: none;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-xs);
  background: var(--color-canvas);
  color: var(--color-muted);
  cursor: pointer;
  align-items: center; justify-content: center;
  transition: transform 0.3s ease, border-color 0.2s ease, color 0.2s ease;
}
.dg-filter-group--overflow .dg-filter-toggle {
  display: inline-flex;
}
.dg-filter-toggle:hover {
  border-color: var(--color-accent, #067a7a);
  color: var(--color-accent, #067a7a);
}
.dg-filter-toggle.expanded {
  transform: rotate(180deg);
}
.dg-filter-option {
  min-height: 2rem;
  padding: 0 var(--space-md);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-md);
  background: var(--color-canvas);
  color: var(--color-muted);
  cursor: pointer;
  font: inherit; font-size: var(--text-body-sm);
  transition: all var(--transition-fast);
}
.dg-filter-option:hover,
.dg-filter-option.active {
  border-color: var(--color-primary);
  background-color: var(--color-primary);
  color: var(--color-on-primary);
}
.dg-filter-option:disabled { cursor: not-allowed; opacity: 0.42; }

/* pager */
.dg-pager {
  margin-top: var(--space-xl);
  display: flex; justify-content: center;
}
.dg-pager--left { justify-content: flex-start; }
.dg-pager--right { justify-content: flex-end; }
.dg-load-more { }
.dg-remaining { }
.dg-page-numbers { display: flex; gap: var(--space-xs); }
.dg-page-btn {
  min-width: 36px; height: 36px;
  padding: 0 var(--space-xs);
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-hairline);
  background: var(--color-canvas);
  color: var(--color-ink);
  font-size: var(--text-body-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.dg-page-btn.active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-on-primary);
}
.dg-page-btn:hover:not(.active):not(:disabled) {
  background-color: var(--color-surface-soft);
}
/* 上一页 / 下一页按钮 */
.dg-page-btn-prev,
.dg-page-btn-next {
  padding-left: var(--space-sm);
  padding-right: var(--space-sm);
}
/* 禁用态 */
.dg-page-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}


/* View All Link */
.view-all-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-2xl);
  font-size: var(--text-button);
  font-weight: 500;
  color: var(--color-primary);
  text-decoration: none;
  transition: gap var(--transition-base);
  display: block;
  text-align: center;
}

.view-all-link:hover {
  gap: var(--space-md);
  text-decoration: none;
}

/* product detail price */
.product-detail-price {
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: var(--space-lg);
}

/* ============================================
   RESPONSIVE BREAKPOINTS
   ============================================ */

/* Tablet: 768-1024px */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .lc-grid { grid-template-columns: repeat(3, 1fr); }
  .dg-list { grid-template-columns: repeat(2, 1fr); }
  /* 水平布局平板端：图片 40% + 文字 60%，屏幕更窄时文字区需要更多空间 */
  .dg-card--horizontal .dg-card-image,
  .dg-card--horizontal-reverse .dg-card-image { flex: 0 0 40%; min-height: 160px; }
  .dg-card--horizontal .dg-card-body,
  .dg-card--horizontal-reverse .dg-card-body { flex: 0 0 60%; }
  .hl-grid { gap: var(--space-xl); }
  .id-grid { gap: var(--space-xl); }
  .hero-banner .container { height: auto; }
}

/* Mobile: < 768px */
@media (max-width: 768px) {
  .hero-banner-content {
    min-height: 60vh;
    padding: var(--space-xxl) var(--space-md);
  }
  .hero-banner-title { font-size: var(--text-display-md); }
  .hero-banner-subtitle { font-size: var(--text-body-md); }
  .hero-banner-nav { display: none; }
  .hero-banner-dots { bottom: var(--space-md); }
  .hero-banner { min-height: auto; }
  .hero-banner .container { height: auto; }

  .hl-grid { flex-direction: column; gap: var(--space-lg); }
  .data-list-showcase .data-list-showcase__item:nth-child(even) .hl-grid {
    flex-direction: column;
  }
  .data-list-showcase .hl-grid {
    min-height: 0;
  }
  .services-grid { grid-template-columns: 1fr; }
  .lc-grid { grid-template-columns: repeat(2, 1fr); }
  .dg-list { grid-template-columns: 1fr; }
  .dg-card--horizontal,
  .dg-card--horizontal-reverse { flex-direction: column; align-items: stretch; }
  .dg-card--horizontal .dg-card-image,
  .dg-card--horizontal-reverse .dg-card-image {
    flex: auto;                   /* 重置 50% flex-basis，回退到 100% 宽 */
    width: 100%; min-height: 180px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  }
  .dg-card--horizontal .dg-card-image img,
  .dg-card--horizontal-reverse .dg-card-image img { aspect-ratio: 1; height: auto; }
  .dg-card--horizontal .dg-card-body,
  .dg-card--horizontal-reverse .dg-card-body { flex: auto; display: flex; flex-direction: column; }  /* 手机端重置：恢复 flex 列布局 */
  .dg-list--horizontal { gap: var(--space-md); }
  .id-grid { grid-template-columns: 1fr; }
  .item-data-layout {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  .item-data-info {
    position: static;
  }
  .detail-carousel-stage,
  .detail-images {
    min-height: 320px;
  }
  .detail-lightbox {
    padding: 24px;
  }
  .detail-lightbox-nav {
    display: none;
  }
  .cf-layout { flex-direction: column; }
  .cf-map-col, .cf-form-col { flex: none; }
  .ps-track { flex-direction: column; align-items: center; }
  .ps-step { max-width: 100%; }
  .dg-filter-group { grid-template-columns: 1fr; }
  .ci-grid { grid-template-columns: 1fr 1fr; }
  .st-title { font-size: var(--text-display-md); }
  .item-data-title { font-size: var(--text-display-sm); }
}

/* Small Mobile: < 480px */
@media (max-width: 480px) {
  .hero-banner-title { font-size: var(--text-display-sm); }
  .hero-banner-content { min-height: 50vh; }
  .ci-grid { grid-template-columns: 1fr; }
  .lc-grid { grid-template-columns: 1fr; }
  .st-block { padding: var(--space-lg) 0; }
}

/* ====== Image Carousel (ic-) ====== */
.ic-section {
  padding: var(--space-xl) 0;
}

/* viewport: 可视窗口，裁剪溢出内容 */
.ic-viewport {
  overflow: hidden;
  position: relative;
}

/* track: 滚动轨道，flex 布局，transition 实现平滑滚动 */
.ic-track {
  display: flex;
  transition: transform 0.5s ease;
}

/* slide: 单张图片容器（a 标签，无链接时表现同 div） */
.ic-slide {
  flex-shrink: 0;
  box-sizing: border-box;
  display: block;
  text-decoration: none;
  color: inherit;
}

/* img-wrap: 用 padding-bottom 撑出 4:3 宽高比 */
.ic-img-wrap {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  padding-bottom: 75%; /* 4:3 */
}

.ic-img-wrap .ic-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* caption: 图片说明文字 */
.ic-caption {
  display: block;
  text-align: center;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-top: var(--space-xs);
  line-height: var(--text-lh-relaxed);
}

.ic-caption:empty {
  display: none;
}

/* arrow: 左右箭头按钮 */
.ic-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: #ffffff;
  color: #333333;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
  z-index: 10;
  transition: opacity 0.3s ease, box-shadow 0.2s ease;
}

.ic-arrow:hover {
  box-shadow: 0 4px 14px rgba(0,0,0,0.18);
}

.ic-arrow-prev {
  left: -22px;
}

.ic-arrow-next {
  right: -22px;
}

/* dots: 圆点指示器 */
.ic-dots {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: var(--space-md);
}

.ic-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: none;
  background: #cccccc;
  cursor: pointer;
  padding: 0;
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.ic-dot--active {
  background: #067a7a;
  transform: scale(1.3);
}

/* 响应式：平板 */
@media (max-width: 1024px) {
  .ic-arrow {
    width: 36px;
    height: 36px;
  }
  .ic-arrow-prev {
    left: -18px;
  }
  .ic-arrow-next {
    right: -18px;
  }
}

/* 响应式：手机 */
@media (max-width: 768px) {
  .ic-arrow {
    width: 30px;
    height: 30px;
  }
  .ic-arrow-prev {
    left: -15px;
  }
  .ic-arrow-next {
    right: -15px;
  }
  .ic-arrow svg {
    width: 18px;
    height: 18px;
  }
}

/* ================================================================
   页面模块列表搜索与分页 (module-list)
   ================================================================ */
.module-list-region {
  width: 100%;
}

.module-list-toolbar {
  width: min(1120px, calc(100% - 2rem));
  margin: var(--space-lg, 2rem) auto var(--space-xl, 3rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md, 1rem);
}

.module-list-search-wrap {
  flex: 1;
  max-width: 560px;
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 14px;
  border: 1px solid var(--color-border, #e6dfd8);
  border-radius: var(--radius-md, 8px);
  background: var(--color-canvas, #faf9f5);
  color: var(--color-text-secondary, #6c6a64);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

/* 搜索框聚焦态：边框高亮 + 微阴影，图标颜色同步 */
.module-list-search-wrap:focus-within {
  border-color: var(--color-primary, #cc785c);
  box-shadow: 0 0 0 3px rgba(204, 120, 92, 0.15);
}

.module-list-search-wrap:focus-within .module-list-search-icon {
  color: var(--color-primary, #cc785c);
}

.module-list-search-icon {
  display: inline-flex;
  flex: 0 0 auto;
  color: var(--color-text-secondary, #6c6a64);
}

.module-list-search {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--color-text, #141413);
  font: inherit;
  font-size: var(--text-body-sm, 0.95rem);
}

.module-list-search::placeholder {
  color: var(--color-text-secondary, #6c6a64);
}

.module-list-count {
  flex: 0 0 auto;
  color: var(--color-text-secondary, #6c6a64);
  font-size: var(--text-body-sm, 0.95rem);
  white-space: nowrap;
}

.module-list-empty {
  width: min(1120px, calc(100% - 2rem));
  margin: var(--space-lg, 2rem) auto;
  padding: var(--space-lg, 2rem);
  border: 1px dashed var(--color-border, #e6dfd8);
  border-radius: var(--radius-md, 8px);
  text-align: center;
  color: var(--color-text-secondary, #6c6a64);
}

.module-list-pagination {
  width: min(1120px, calc(100% - 2rem));
  margin: var(--space-xl, 3rem) auto;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
}

.module-list-page-btn {
  min-width: 38px;
  height: 38px;
  padding: 0 13px;
  border: 1px solid var(--color-border, #e6dfd8);
  border-radius: var(--radius-sm, 6px);
  background: var(--color-canvas, #faf9f5);
  color: var(--color-text, #141413);
  cursor: pointer;
  font: inherit;
  font-size: var(--text-body-sm, 0.9rem);
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.module-list-page-btn:hover:not(:disabled),
.module-list-page-btn.active {
  border-color: var(--color-primary, #cc785c);
  background: var(--color-primary, #cc785c);
  color: var(--color-on-primary, #ffffff);
}

.module-list-page-btn:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.module-list-filter-hidden,
.module-list-page-hidden {
  display: none !important;
}

@media (max-width: 768px) {
  .module-list-toolbar {
    align-items: stretch;
    flex-direction: column;
    margin-top: var(--space-md, 1.5rem);
    margin-bottom: var(--space-lg, 2rem);
  }

  .module-list-search-wrap {
    max-width: none;
  }

  .module-list-count {
    align-self: flex-start;
  }
}

/* ================================================================
   精选推荐 (featured_picks) — Claude 模板专属
   匹配 Claude 设计系统：暖色调、衬线标题、极简阴影、精致排版
   ================================================================ */
.fp-section {
  --fp-cols: var(--cols, 3);
  --fp-card-gap: var(--card-gap, var(--space-lg));
  --fp-card-bg: var(--card-bg, var(--color-canvas, #faf9f5));
  --fp-card-radius: var(--card-radius, var(--radius-lg, 12px));
  --fp-badge-bg: var(--badge-bg, var(--color-primary, #cc785c));
  --fp-badge-color: var(--badge-color, var(--color-on-primary, #ffffff));
}

/* ========== 轮播视口：裁剪溢出内容 ========== */
.fp-viewport {
  overflow: hidden;
  position: relative;
  margin-top: var(--space-lg);
}

/* ========== 轮播轨道：flex 布局，transition 实现平滑滚动 ========== */
.fp-track {
  display: flex;
  gap: var(--fp-card-gap);
  transition: transform 0.5s ease;
}

/* ========== 单张卡片：Claude 的精致极简风格 ========== */
.fp-card {
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  box-sizing: border-box;
  background: var(--fp-card-bg, var(--color-canvas, #faf9f5));
  border: 1px solid var(--color-border, #e6dfd8);
  border-radius: var(--fp-card-radius, var(--radius-lg, 12px));
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-slow, 0.35s ease);
}

.fp-card:hover {
  border-color: var(--color-primary, #cc785c);
  box-shadow: var(--shadow-lg, 0 2px 8px rgba(20,20,19,0.10));
  transform: translateY(-2px);
  text-decoration: none;
  color: inherit;
}

/* ========== 图片区 ========== */
.fp-card-img-wrap {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-surface, #efe9de);
  position: relative;
  flex-shrink: 0;
}

.fp-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.fp-card:hover .fp-card-img {
  transform: scale(1.04);
}

/* ========== 卡片正文 ========== */
.fp-card-body {
  padding: var(--space-md) var(--space-lg) var(--space-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* ========== 角标：Claude 的圆角胶囊标签 ========== */
.fp-badge {
  display: inline-block;
  align-self: flex-start;
  padding: 2px 12px;
  font-family: var(--font-sans, 'Inter', sans-serif);
  font-size: var(--text-caption, 0.8125rem);
  font-weight: 600;
  letter-spacing: var(--tracking-caption-upper, 0.125em);
  text-transform: uppercase;
  line-height: 1.7;
  background: var(--fp-badge-bg, var(--color-primary, #cc785c));
  color: var(--fp-badge-color, #ffffff);
  border-radius: var(--radius-pill, 9999px);
  margin-bottom: var(--space-sm, 0.75rem);
}

/* ========== 标题：无衬线正文层级 ========== */
.fp-card-title {
  font-family: var(--font-sans, 'Inter', sans-serif);
  font-size: var(--text-title-md, 1.125rem);
  font-weight: 600;
  color: var(--color-text, #141413);
  line-height: var(--leading-title-md, 1.4);
  margin-bottom: var(--space-xs, 0.5rem);
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

/* ========== 描述 ========== */
.fp-card-desc {
  font-family: var(--font-sans, 'Inter', sans-serif);
  font-size: var(--text-body-sm, 0.875rem);
  color: var(--color-text-secondary, #6c6a64);
  line-height: var(--leading-body, 1.55);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

/* ========== 链接指示 ========== */
.fp-card-link-text {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: var(--space-sm, 0.75rem);
  font-family: var(--font-sans, 'Inter', sans-serif);
  font-size: var(--text-body-sm, 0.875rem);
  font-weight: 500;
  color: var(--color-primary, #cc785c);
  transition: gap 0.25s ease, opacity 0.25s ease;
  opacity: 0.8;
}

.fp-card:hover .fp-card-link-text {
  gap: 8px;
  opacity: 1;
}

.fp-card:not([href]) .fp-card-link-text {
  display: none;
}

/* ========== 水平布局（--dir: row → 左图右文；row-reverse → 右图左文）========== */
.fp-card--left,
.fp-card--right {
  align-items: stretch;
}
.fp-card--left  { flex-direction: row; }
.fp-card--right { flex-direction: row-reverse; }

.fp-card--left .fp-card-img-wrap,
.fp-card--right .fp-card-img-wrap {
  width: 40%;
  min-width: 180px;
  max-width: 300px;
  aspect-ratio: auto;
  min-height: 200px;
}

.fp-card--left .fp-card-body,
.fp-card--right .fp-card-body {
  flex: 1;
  justify-content: center;
  padding: var(--space-lg);
}

/* ========== 轮播箭头 ========== */
.fp-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: var(--color-canvas, #ffffff);
  color: var(--color-text, #333333);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  line-height: 1;
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
  z-index: 10;
  transition: opacity 0.3s ease, box-shadow 0.2s ease;
  opacity: 0.85;
}

.fp-arrow:hover {
  box-shadow: 0 4px 14px rgba(0,0,0,0.18);
  opacity: 1;
}

.fp-arrow--left {
  left: -22px;
}

.fp-arrow--right {
  right: -22px;
}

/* ========== 圆点指示器 ========== */
.fp-dots {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: var(--space-md);
}

.fp-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: none;
  background: #cccccc;
  cursor: pointer;
  padding: 0;
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.fp-dot--active {
  background: var(--color-primary, #cc785c);
  transform: scale(1.3);
}

/* ========== 响应式：平板 ========== */
@media (max-width: 1024px) {
  .fp-arrow {
    width: 36px;
    height: 36px;
    font-size: 20px;
  }
  .fp-arrow--left {
    left: -18px;
  }
  .fp-arrow--right {
    right: -18px;
  }
}

/* ========== 响应式：手机 ========== */
@media (max-width: 768px) {
  .fp-arrow {
    width: 30px;
    height: 30px;
    font-size: 16px;
  }
  .fp-arrow--left {
    left: -15px;
  }
  .fp-arrow--right {
    right: -15px;
  }

  .fp-card--left,
  .fp-card--right {
    flex-direction: column;
  }

  .fp-card--left .fp-card-img-wrap,
  .fp-card--right .fp-card-img-wrap {
    width: 100%;
    max-width: none;
    aspect-ratio: 4 / 3;
    min-height: 0;
  }

  .fp-card--left .fp-card-body,
  .fp-card--right .fp-card-body {
    padding: var(--space-md);
  }
}

/* ============================================================
   回到顶部按钮
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--color-border, #e2e8f0);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--color-text, #1e293b);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-bg-secondary, #f8fafc);
  border-color: var(--color-primary, #1a56db);
  color: var(--color-primary, #1a56db);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

/* 手机端稍小，避免遮挡内容 */
@media (max-width: 768px) {
  .back-to-top {
    bottom: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
  }
}