@charset "UTF-8";
/* ==========================================================================
   蛋挞云 (Eggtart Cloud) — 品牌 UI 套件与全局样式表
   气质：清晨薄雾般的清爽气质 · 安静克制的科技感 · 发丝级分隔线 · 2px 细节点缀
   ========================================================================== */

:root {
  /* 1. 色彩令牌 (Color Tokens) */
  --color-primary: #3FA38F;      /* 薄荷青（主色） */
  --color-secondary: #1E5C4F;    /* 深松绿（辅色） */
  --color-mid: #7FC4B4;          /* 海雾绿（中层） */
  --color-highlight: #CDE8DF;    /* 云雾白（高光） */
  --color-text: #16332C;         /* 墨绿（主文字） */
  --color-bg: #F2F7F5;           /* 霜白（主背景） */

  /* 衍生辅助语义色 */
  --color-surface: #FFFFFF;
  --color-surface-soft: #F8FCFA;
  --color-text-muted: #3A5E54;
  --color-text-subtle: #5C8277;
  --color-hairline: #CDE8DF;
  --color-hairline-strong: rgba(30, 92, 79, 0.18);

  /* 2. 字体与字阶令牌 (Typography & Type Scale Tokens) */
  --font-heading: 'Sora', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: 'IBM Plex Sans', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --text-xs: 0.75rem;     /* 12px */
  --text-sm: 0.875rem;    /* 14px */
  --text-base: 1rem;      /* 16px */
  --text-lg: 1.125rem;    /* 18px */
  --text-xl: 1.35rem;     /* 21.6px */
  --text-2xl: 1.75rem;    /* 28px */
  --text-3xl: 2.35rem;    /* 37.6px */
  --text-4xl: 3.15rem;    /* 50.4px */

  /* 3. 布局与间距令牌 */
  --container-max: 1180px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 999px;
  --shadow-mist: 0 12px 32px -8px rgba(22, 51, 44, 0.06), 0 2px 6px rgba(22, 51, 44, 0.03);
  --shadow-hover: 0 18px 40px -10px rgba(30, 92, 79, 0.13);
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 基础重置 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.8;
  letter-spacing: 0.01em;
  overflow-x: hidden;
  background-image:
    radial-gradient(circle at 15% 8%, rgba(205, 232, 223, 0.65) 0%, transparent 40%),
    radial-gradient(circle at 85% 22%, rgba(127, 196, 180, 0.22) 0%, transparent 45%);
}

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

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

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

ul, ol {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* 发丝级分隔线 (Hairline Dividers) */
.hairline-divider {
  height: 1px;
  width: 100%;
  background-color: var(--color-hairline);
  border: 0;
}

/* ==========================================================================
   同步状态的圆点状态系统 (Dot Status System)
   ========================================================================== */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-left: 2px solid var(--color-primary);
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-secondary);
  letter-spacing: 0.04em;
  box-shadow: 0 2px 8px rgba(22, 51, 44, 0.03);
}

.status-dot {
  position: relative;
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-primary);
  flex-shrink: 0;
}

/* 上传/同步完成态：深松绿圆心 + 云雾白2px光环 */
.status-dot--synced {
  background-color: var(--color-secondary);
  box-shadow: 0 0 0 2px var(--color-highlight), 0 0 0 4px rgba(63, 163, 143, 0.25);
}

/* 极速在线呼吸态：薄荷青 */
.status-dot--online {
  background-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-highlight);
  animation: pulse-mist 2.4s infinite ease-in-out;
}

/* 智能调度态：海雾绿 */
.status-dot--routing {
  background-color: var(--color-mid);
  box-shadow: 0 0 0 2px var(--color-highlight);
}

/* 静默待机态：云雾白实心 + 2px深青描边 */
.status-dot--standby {
  background-color: var(--color-highlight);
  border: 2px solid var(--color-secondary);
}

@keyframes pulse-mist {
  0%, 100% {
    box-shadow: 0 0 0 2px var(--color-highlight), 0 0 0 4px rgba(63, 163, 143, 0.15);
  }
  50% {
    box-shadow: 0 0 0 4px var(--color-highlight), 0 0 0 8px rgba(63, 163, 143, 0);
  }
}

/* ==========================================================================
   页眉导航栏 (Site Header & Navigation)
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(242, 247, 245, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-hairline);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
  gap: 20px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--color-text);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}

.brand-logo:hover {
  color: var(--color-secondary);
}

.brand-logo img {
  width: 38px;
  height: 38px;
}

.brand-meta {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-sub {
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--color-text-subtle);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 2px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  padding: 6px 2px;
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-fast);
}

.nav-link:hover::after,
.nav-link--active::after {
  width: 100%;
}

.nav-link--highlight {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background-color: var(--color-highlight);
  color: var(--color-secondary);
  border-radius: var(--radius-pill);
  font-weight: 600;
}

.nav-link--highlight::after {
  display: none;
}

.nav-link--highlight:hover {
  background-color: var(--color-mid);
  color: var(--color-text);
}

/* ==========================================================================
   按钮规范 (Buttons & Touch Targets)
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  padding: 13px 26px;
  min-height: 48px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  line-height: 1.2;
}

.btn-sm {
  font-size: var(--text-sm);
  padding: 9px 18px;
  min-height: 40px;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #FFFFFF;
  box-shadow: 0 6px 18px rgba(63, 163, 143, 0.25);
}

.btn-primary:hover {
  background-color: var(--color-secondary);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(30, 92, 79, 0.28);
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: #FFFFFF;
}

.btn-secondary:hover {
  background-color: var(--color-text);
  color: #FFFFFF;
  transform: translateY(-2px);
}

.btn-outline {
  background-color: var(--color-surface);
  color: var(--color-secondary);
  border: 2px solid var(--color-mid);
}

.btn-outline:hover {
  background-color: var(--color-highlight);
  border-color: var(--color-secondary);
  color: var(--color-text);
  transform: translateY(-2px);
}

/* ==========================================================================
   主视觉区 (Hero Section)
   ========================================================================== */
.hero-section {
  padding: 76px 0 68px;
  border-bottom: 1px solid var(--color-hairline);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.22;
  letter-spacing: -0.02em;
  margin: 20px 0 16px;
}

.hero-title .brand-accent {
  color: var(--color-primary);
  border-bottom: 2px solid var(--color-mid);
  padding-bottom: 2px;
}

.hero-subtitle {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 16px;
  line-height: 1.5;
}

.hero-desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.85;
  margin-bottom: 30px;
  max-width: 620px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 34px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--color-hairline);
}

.metric-item {
  border-left: 2px solid var(--color-primary);
  padding-left: 14px;
}

.metric-value {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

.metric-label {
  font-size: var(--text-xs);
  color: var(--color-text-subtle);
  margin-top: 4px;
}

/* Hero 右侧：云雾终端状态卡片 */
.hero-visual-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-top: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-mist);
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--color-hairline);
}

.terminal-title {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.terminal-badge {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  padding: 3px 10px;
  background-color: var(--color-bg);
  color: var(--color-secondary);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-pill);
}

.node-status-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 16px 0 20px;
}

.node-status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
}

.node-name {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: var(--color-text);
}

.node-latency {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-secondary);
  background-color: var(--color-highlight);
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
}

/* ==========================================================================
   通用章节排版 (Section Common Layout)
   ========================================================================== */
.section {
  padding: 72px 0;
  border-bottom: 1px solid var(--color-hairline);
}

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

.section-header {
  max-width: 720px;
  margin: 0 auto 48px;
  text-align: center;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-secondary);
  background-color: var(--color-highlight);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
  margin-bottom: 14px;
}

.section-desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* ==========================================================================
   产品核心优势介绍 (3个图文卡片)
   ========================================================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-top: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-mist);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-top-color: var(--color-secondary);
}

.feature-illust {
  margin-bottom: 22px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--color-hairline);
}

.feature-illust img {
  width: 100%;
  height: auto;
}

.feature-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.feature-title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
  line-height: 1.35;
}

.feature-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* ==========================================================================
   流媒体与 AI 支持图卡 (Streaming & AI Unlock Cards)
   ========================================================================== */
.media-ai-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.media-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-left: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-mist);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.media-card-top {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 20px;
  align-items: center;
}

.media-card-title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 10px;
}

.media-card-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.8;
}

.platform-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 16px;
  border-top: 1px solid var(--color-hairline);
}

.platform-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text);
}

/* ==========================================================================
   套餐价格卡片与对比表 (Pricing Cards & Comparison Table)
   ========================================================================== */
.pricing-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-bottom: 48px;
}

.plan-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-top: 2px solid var(--color-mid);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  box-shadow: var(--shadow-mist);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.plan-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.plan-card--featured {
  border: 2px solid var(--color-primary);
  background: linear-gradient(180deg, rgba(205, 232, 223, 0.25) 0%, #FFFFFF 35%);
}

.plan-ribbon {
  position: absolute;
  top: -13px;
  right: 20px;
  background-color: var(--color-secondary);
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 3px 12px;
  border-radius: var(--radius-pill);
}

.plan-name {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 6px;
}

.plan-sub {
  font-size: var(--text-xs);
  color: var(--color-text-subtle);
  margin-bottom: 18px;
}

.plan-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  padding: 16px 0;
  border-top: 1px solid var(--color-hairline);
  border-bottom: 1px solid var(--color-hairline);
  margin-bottom: 18px;
}

.price-currency {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-secondary);
}

.price-amount {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
}

.price-period {
  font-size: var(--text-sm);
  color: var(--color-text-subtle);
}

.plan-features {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.plan-features li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.check-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-primary);
  margin-top: 9px;
  flex-shrink: 0;
}

/* 响应式套餐参数对比大表 */
.table-wrapper {
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-top: 2px solid var(--color-secondary);
  border-radius: var(--radius-md);
  overflow-x: auto;
  box-shadow: var(--shadow-mist);
}

.pricing-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  min-width: 720px;
}

.pricing-table th,
.pricing-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-hairline);
  font-size: var(--text-sm);
}

.pricing-table thead th {
  background-color: var(--color-bg);
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-secondary);
  white-space: nowrap;
}

.pricing-table tbody tr:hover {
  background-color: rgba(205, 232, 223, 0.2);
}

.pricing-table tbody tr:last-child td {
  border-bottom: none;
}

/* ==========================================================================
   品牌 UI 套件展示区 (Brand UI Kit & Sync Dot System Showcase)
   ========================================================================== */
.uikit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.uikit-panel {
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-top: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 24px;
}

.uikit-title {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-hairline);
}

.swatch-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.swatch-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
}

.swatch-color {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  border: 1px solid rgba(22, 51, 44, 0.12);
  flex-shrink: 0;
}

/* ==========================================================================
   用户评价 (User Testimonials)
   ========================================================================== */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-top: 2px solid var(--color-mid);
  border-radius: var(--radius-md);
  padding: 26px;
  box-shadow: var(--shadow-mist);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.review-stars {
  color: var(--color-primary);
  font-size: var(--text-sm);
  letter-spacing: 2px;
  margin-bottom: 12px;
  font-weight: 700;
}

.review-content {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.85;
  margin-bottom: 20px;
}

.review-author {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--color-hairline);
  font-size: var(--text-xs);
}

.author-name {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-text);
}

.author-role {
  color: var(--color-text-subtle);
}

/* ==========================================================================
   常见问题解答 (FAQ Section)
   ========================================================================== */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-left: 2px solid var(--color-primary);
  border-radius: var(--radius-sm);
  padding: 22px 26px;
  box-shadow: var(--shadow-mist);
}

.faq-question {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.faq-answer {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.85;
}

/* ==========================================================================
   底部呼吁区与极简页脚 (CTA Banner & Minimalist 4-Title Footer)
   ========================================================================== */
.cta-banner {
  background: linear-gradient(135deg, var(--color-secondary) 0%, #16332C 100%);
  color: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 52px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  border: 2px solid var(--color-primary);
}

.cta-banner h2 {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  color: #FFFFFF;
  margin-bottom: 14px;
}

.cta-banner p {
  color: var(--color-highlight);
  max-width: 600px;
  margin: 0 auto 28px;
  font-size: var(--text-base);
}

.site-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-hairline);
  padding: 44px 0;
}

.footer-nav-only {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 40px;
}

.footer-link {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: all var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-secondary);
  background-color: var(--color-bg);
  border-color: var(--color-hairline);
}

/* ==========================================================================
   独立子页面与推荐资讯文章页样式 (Subpages & SEO Blog Styles)
   ========================================================================== */
.page-hero {
  padding: 56px 0 40px;
  border-bottom: 1px solid var(--color-hairline);
  background-color: var(--color-surface-soft);
}

.article-grid {
  display: flex;
  flex-direction: column;
  gap: 32px;
  padding: 56px 0;
}

.article-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-top: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 36px;
  box-shadow: var(--shadow-mist);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  font-size: var(--text-xs);
  color: var(--color-text-subtle);
  margin-bottom: 14px;
}

.article-tag {
  background-color: var(--color-highlight);
  color: var(--color-secondary);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-weight: 600;
}

.article-title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
  line-height: 1.35;
}

.article-body {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.9;
}

.article-body p {
  margin-bottom: 16px;
}

.article-body h3 {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  color: var(--color-text);
  margin: 22px 0 10px;
  padding-left: 12px;
  border-left: 2px solid var(--color-primary);
}

.article-body a {
  color: var(--color-secondary);
  font-weight: 600;
  border-bottom: 2px solid var(--color-mid);
  padding-bottom: 1px;
}

.article-body a:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.doc-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-top: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 40px;
  margin: 48px auto;
  max-width: 880px;
  box-shadow: var(--shadow-mist);
}

.doc-card h2 {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--color-secondary);
  margin: 28px 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-hairline);
}

.doc-card h2:first-of-type {
  margin-top: 0;
}

.doc-card p, .doc-card li {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.85;
  margin-bottom: 12px;
}

.doc-card ul {
  list-style: disc;
  padding-left: 22px;
  margin-bottom: 16px;
}

/* ==========================================================================
   响应式适配 (Responsive Media Queries — 手机端单栏与大点击热区)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

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

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

@media (max-width: 768px) {
  :root {
    --text-4xl: 2.2rem;
    --text-3xl: 1.75rem;
    --text-2xl: 1.4rem;
  }

  .header-inner {
    flex-direction: column;
    padding: 14px 0;
    gap: 12px;
  }

  .main-nav {
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
  }

  .hero-section {
    padding: 44px 0;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn,
  .plan-card .btn,
  .cta-banner .btn {
    width: 100%;
    min-height: 52px;
    font-size: 1.05rem;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .features-grid,
  .media-ai-grid,
  .pricing-cards-grid,
  .reviews-grid {
    grid-template-columns: 1fr;
  }

  .media-card-top {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 48px 0;
  }

  .cta-banner {
    padding: 36px 20px;
  }

  .footer-nav-only {
    flex-direction: column;
    gap: 12px;
  }

  .footer-link {
    width: 100%;
    text-align: center;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-bg);
    border-color: var(--color-hairline);
  }

  .article-card,
  .doc-card {
    padding: 24px 18px;
  }
}