/* ==========================================================================
   蛋挞云 (Eggtart Cloud) 品牌 UI 套件与全局样式表
   设计灵感：刚出炉的葡式蛋挞 —— 温暖、手作感、值得信赖、手心的温度
   ========================================================================== */

:root {
  /* 色彩令牌 (Color Tokens) */
  --color-caramel-gold: #E8A33D;     /* 焦糖金 - 主色 */
  --color-pastry-brown: #B4632A;     /* 酥皮棕 - 辅色 */
  --color-custard-cream: #F6D186;    /* 蛋奶奶油 - 高光 */
  --color-bake-dark: #3B2A1A;        /* 烘焙深棕 - 文字 */
  --color-warm-paper: #FAF3E7;       /* 暖纸白 - 背景 */

  /* 衍生辅助色阶 */
  --color-surface: #FFFDF9;          /* 刚出炉瓷盘白 */
  --color-surface-warm: #F5E9D4;     /* 烘焙浅杏底 */
  --color-text-secondary: #684D33;   /* 柔和可可棕 */
  --color-text-muted: #8E7054;       /* 浅焙麦芽棕 */
  --color-border: rgba(180, 99, 42, 0.18);
  --color-border-strong: rgba(180, 99, 42, 0.36);
  --color-success: #2D7A47;

  /* 字体家族 (Typography Tokens) */
  --font-heading: 'Fraunces', 'Noto Serif SC', 'Songti SC', Georgia, serif;
  --font-body: 'Nunito Sans', 'Noto Serif SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', serif;

  /* 字阶系统 (Type Scale) */
  --text-xs: 0.8125rem;    /* 13px */
  --text-sm: 0.9375rem;    /* 15px */
  --text-base: 1.0625rem;  /* 17px */
  --text-lg: 1.25rem;      /* 20px */
  --text-xl: 1.5rem;       /* 24px */
  --text-2xl: 2rem;        /* 32px */
  --text-3xl: 2.65rem;     /* 42px */

  /* 圆角与柔和长投影 (Radius & Soft Long Shadows) */
  --radius-sm: 10px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-pill: 999px;

  --shadow-soft: 0 18px 42px -12px rgba(180, 99, 42, 0.14), 0 4px 12px rgba(59, 42, 26, 0.05);
  --shadow-hover: 0 26px 54px -12px rgba(180, 99, 42, 0.24), 0 8px 20px rgba(59, 42, 26, 0.08);
  --shadow-button: 0 10px 24px -6px rgba(232, 163, 61, 0.55);
  --shadow-inset: inset 0 1px 0 rgba(255, 255, 255, 0.75);

  /* 布局宽度与充裕留白 */
  --container-width: 1180px;
  --section-py: 5.5rem;
}

/* 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 {
  background-color: var(--color-warm-paper);
  background-image:
    radial-gradient(circle at 12% 8%, rgba(246, 209, 134, 0.35) 0%, transparent 36%),
    radial-gradient(circle at 88% 18%, rgba(232, 163, 61, 0.16) 0%, transparent 40%),
    radial-gradient(circle at 50% 85%, rgba(246, 209, 134, 0.25) 0%, transparent 45%);
  color: var(--color-bake-dark);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.75;
  overflow-x: hidden;
}

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

a {
  color: var(--color-pastry-brown);
  text-decoration: none;
  transition: all 0.25s ease;
}

a:hover {
  color: var(--color-bake-dark);
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* 顶部温馨烘焙通知条 */
.top-notice {
  background: var(--color-bake-dark);
  color: var(--color-warm-paper);
  text-align: center;
  padding: 0.55rem 1rem;
  font-size: var(--text-xs);
  letter-spacing: 0.02em;
  border-bottom: 2px solid var(--color-caramel-gold);
}

.top-notice strong {
  color: var(--color-custard-cream);
}

/* 页眉与导航栏 (Header & Navigation) */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 243, 231, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 6px 24px rgba(59, 42, 26, 0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
  gap: 1.25rem;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-bake-dark);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.35rem;
}

.brand-logo img {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(180, 99, 42, 0.18);
}

.brand-sub {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-pastry-brown);
  letter-spacing: 0.04em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.main-nav a {
  color: var(--color-bake-dark);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.main-nav a:hover,
.main-nav a.active {
  background: var(--color-custard-cream);
  color: var(--color-bake-dark);
}

.main-nav a.nav-highlight {
  background: rgba(232, 163, 61, 0.22);
  border: 1px dashed var(--color-pastry-brown);
  color: var(--color-bake-dark);
}

.main-nav a.nav-highlight:hover {
  background: var(--color-caramel-gold);
}

/* 按钮与点缀样式 (Buttons & Pastry Garnish Styles) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-sm);
  padding: 0.75rem 1.45rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.22, 1, 0.36, 1);
  text-align: center;
  line-height: 1.3;
  position: relative;
  border: 2px solid transparent;
}

.btn-lg {
  font-size: 1.05rem;
  padding: 0.95rem 1.85rem;
  border-radius: var(--radius-lg);
  min-height: 52px;
}

/* 焦糖金主按钮：带蛋奶奶油高光与焦糖投影 */
.btn-primary {
  background: linear-gradient(135deg, var(--color-custard-cream) 0%, var(--color-caramel-gold) 55%, #D98B26 100%);
  color: var(--color-bake-dark);
  border-color: var(--color-pastry-brown);
  box-shadow: var(--shadow-button), var(--shadow-inset);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px -6px rgba(180, 99, 42, 0.65), var(--shadow-inset);
  color: var(--color-bake-dark);
}

/* 烘焙深棕按钮 */
.btn-bake {
  background: var(--color-bake-dark);
  color: var(--color-custard-cream);
  border-color: var(--color-pastry-brown);
  box-shadow: 0 10px 24px -6px rgba(59, 42, 26, 0.35);
}

.btn-bake:hover {
  background: var(--color-pastry-brown);
  color: #FFFDF9;
  transform: translateY(-2px);
}

/* 酥皮点缀描边按钮（用于 PBN 权重传递与次级操作） */
.btn-pastry {
  background: var(--color-surface);
  color: var(--color-bake-dark);
  border: 2px dashed var(--color-pastry-brown);
  box-shadow: var(--shadow-soft);
}

.btn-pastry:hover {
  background: var(--color-custard-cream);
  border-style: solid;
  transform: translateY(-2px);
  color: var(--color-bake-dark);
}

/* 主视觉区 (Hero Section) */
.hero-section {
  padding: 4.5rem 0 5rem;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.18fr 0.82fr;
  gap: 3rem;
  align-items: center;
}

.bake-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-custard-cream);
  color: var(--color-bake-dark);
  border: 1.5px solid var(--color-caramel-gold);
  padding: 0.42rem 1rem;
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  font-weight: 700;
  margin-bottom: 1.35rem;
  box-shadow: 0 4px 14px rgba(232, 163, 61, 0.25);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  line-height: 1.25;
  color: var(--color-bake-dark);
  margin-bottom: 1.15rem;
  font-weight: 900;
  letter-spacing: -0.01em;
}

.hero-title .brand-highlight {
  background: linear-gradient(180deg, transparent 60%, var(--color-custard-cream) 60%);
  padding: 0 0.2rem;
  color: var(--color-pastry-brown);
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--color-pastry-brown);
  font-weight: 700;
  margin-bottom: 1rem;
}

.hero-intro {
  background: rgba(255, 253, 249, 0.85);
  border-left: 4px solid var(--color-caramel-gold);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 1.1rem 1.35rem;
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  margin-bottom: 1.85rem;
  box-shadow: var(--shadow-soft);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-bottom: 2rem;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.85rem;
  padding-top: 1.4rem;
  border-top: 1px dashed var(--color-border-strong);
}

.metric-item strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.45rem;
  color: var(--color-bake-dark);
}

.metric-item span {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* 蛋挞酥皮点缀卡片 (Pastry Garnish Card) */
.tart-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1.5px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  padding: 1.85rem;
  position: relative;
  transition: all 0.3s ease;
  overflow: hidden;
}

/* 卡片顶部焦糖蛋奶点缀条 */
.tart-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--color-pastry-brown), var(--color-caramel-gold), var(--color-custard-cream), var(--color-caramel-gold));
}

.tart-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-caramel-gold);
}

/* Hero 右侧手作烤箱监控面板 */
.oven-panel {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 2px solid var(--color-caramel-gold);
  box-shadow: var(--shadow-hover);
  padding: 1.75rem;
  position: relative;
}

.oven-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.2rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px dashed var(--color-border-strong);
}

.oven-status {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-success);
  background: rgba(45, 122, 71, 0.1);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-pill);
}

.node-list {
  display: grid;
  gap: 0.7rem;
  margin: 1.1rem 0;
}

.node-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-warm-paper);
  padding: 0.7rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  font-size: var(--text-xs);
}

.node-latency {
  font-weight: 800;
  color: var(--color-success);
  background: #E7F5EC;
  padding: 0.15rem 0.55rem;
  border-radius: 6px;
}

/* 通用区块标题 (Section Headings) */
.section {
  padding: var(--section-py) 0;
}

.section-alt {
  background: rgba(245, 233, 212, 0.48);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3.25rem;
}

.section-tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 800;
  color: var(--color-pastry-brown);
  background: var(--color-custard-cream);
  padding: 0.3rem 0.9rem;
  border-radius: var(--radius-pill);
  margin-bottom: 0.75rem;
  letter-spacing: 0.05em;
}

.section-title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  color: var(--color-bake-dark);
  margin-bottom: 0.85rem;
  line-height: 1.3;
}

.section-desc {
  color: var(--color-text-secondary);
  font-size: var(--text-base);
}

/* 三大核心优势图文卡片 (3 Feature Cards) */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.85rem;
}

.adv-card-img {
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  border: 1px solid var(--color-border);
  background: var(--color-warm-paper);
}

.adv-card h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  margin-bottom: 0.65rem;
  color: var(--color-bake-dark);
}

.adv-card p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
}

.adv-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.adv-tags span {
  font-size: 0.76rem;
  font-weight: 700;
  background: var(--color-warm-paper);
  color: var(--color-pastry-brown);
  border: 1px solid var(--color-border-strong);
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-pill);
}

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

.media-card-visual {
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 1.35rem;
  box-shadow: 0 8px 24px rgba(59, 42, 26, 0.08);
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1rem;
}

.pill-item {
  background: var(--color-warm-paper);
  border: 1px solid var(--color-caramel-gold);
  color: var(--color-bake-dark);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  font-weight: 700;
}

/* 套餐价格卡片与对比表 (Pricing Cards & Comparison Table) */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.4rem;
  margin-bottom: 3rem;
}

.price-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.price-card.featured {
  border: 2.5px solid var(--color-caramel-gold);
  background: linear-gradient(180deg, #FFFDF9 0%, #FDF5E4 100%);
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.popular-ribbon {
  display: inline-block;
  align-self: flex-start;
  background: var(--color-bake-dark);
  color: var(--color-custard-cream);
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-pill);
  margin-bottom: 0.65rem;
}

.plan-name {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  color: var(--color-bake-dark);
  margin-bottom: 0.25rem;
}

.plan-tagline {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.plan-price {
  margin-bottom: 1.1rem;
  padding-bottom: 1rem;
  border-bottom: 1px dashed var(--color-border-strong);
}

.plan-price .currency {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-pastry-brown);
}

.plan-price .amount {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--color-bake-dark);
  line-height: 1;
}

.plan-price .period {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.plan-subprice {
  display: block;
  font-size: 0.78rem;
  color: var(--color-pastry-brown);
  font-weight: 700;
  margin-top: 0.35rem;
}

.plan-features {
  list-style: none;
  margin-bottom: 1.5rem;
  font-size: var(--text-xs);
}

.plan-features li {
  padding: 0.42rem 0;
  color: var(--color-text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
}

.plan-features li::before {
  content: "🥧";
  font-size: 0.85rem;
  flex-shrink: 0;
}

/* 响应式价格对比表 */
.table-wrapper {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1.5px solid var(--color-border-strong);
  box-shadow: var(--shadow-soft);
  overflow-x: auto;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
  text-align: left;
  font-size: var(--text-sm);
}

.comparison-table th,
.comparison-table td {
  padding: 1rem 1.15rem;
  border-bottom: 1px solid var(--color-border);
}

.comparison-table thead th {
  background: var(--color-bake-dark);
  color: var(--color-custard-cream);
  font-family: var(--font-heading);
  font-weight: 700;
}

.comparison-table tbody tr:hover {
  background: rgba(246, 209, 134, 0.18);
}

/* 品牌 UI 套件展示区 (Brand UI Kit Showcase) */
.uikit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.swatch-list {
  display: grid;
  gap: 0.65rem;
  margin-top: 0.85rem;
}

.swatch-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0.9rem;
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-weight: 700;
  border: 1px solid rgba(59, 42, 26, 0.12);
}

.logo-showcase-row {
  display: flex;
  align-items: center;
  justify-content: space-around;
  gap: 1rem;
  padding: 1rem;
  background: var(--color-warm-paper);
  border-radius: var(--radius-md);
  border: 1px dashed var(--color-pastry-brown);
  margin: 0.9rem 0;
}

/* 用户评价 (User Reviews) */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.65rem;
}

.review-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.85rem;
}

.reviewer-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.reviewer-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-custard-cream);
  border: 2px solid var(--color-caramel-gold);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: var(--color-bake-dark);
}

.stars {
  color: var(--color-caramel-gold);
  font-size: 1.05rem;
  letter-spacing: 2px;
}

/* 常见问题 FAQ */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  gap: 1rem;
}

.faq-item {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.faq-item summary {
  padding: 1.15rem 1.4rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.08rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--color-bake-dark);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "＋";
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-custard-cream);
  color: var(--color-bake-dark);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  content: "－";
  background: var(--color-caramel-gold);
}

.faq-answer {
  padding: 0 1.4rem 1.25rem;
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  border-top: 1px dashed var(--color-border);
  padding-top: 0.9rem;
}

/* 页脚（严格只保留四个标题链接，点击打开新页面） */
.site-footer {
  background: var(--color-bake-dark);
  color: var(--color-warm-paper);
  padding: 2.75rem 0;
  border-top: 4px solid var(--color-caramel-gold);
}

.footer-only-four {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2.75rem;
  flex-wrap: wrap;
}

.footer-only-four a {
  color: var(--color-custard-cream);
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  padding: 0.55rem 1.2rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(246, 209, 134, 0.28);
  background: rgba(255, 255, 255, 0.04);
}

.footer-only-four a:hover {
  background: var(--color-caramel-gold);
  color: var(--color-bake-dark);
  border-color: var(--color-caramel-gold);
  transform: translateY(-2px);
}

/* 推荐资讯与独立内容页样式 (Articles & Subpages) */
.page-hero {
  padding: 3.5rem 0 2.5rem;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
  background: rgba(246, 209, 134, 0.16);
}

.article-stack {
  display: grid;
  gap: 2.25rem;
  max-width: 940px;
  margin: 2.5rem auto;
}

.seo-article {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1.5px solid var(--color-border-strong);
  box-shadow: var(--shadow-soft);
  padding: 2.2rem;
}

.seo-article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: var(--text-xs);
  color: var(--color-pastry-brown);
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.seo-article h2 {
  font-family: var(--font-heading);
  font-size: 1.55rem;
  color: var(--color-bake-dark);
  margin-bottom: 1rem;
  line-height: 1.38;
}

.seo-article h3 {
  font-family: var(--font-heading);
  font-size: 1.18rem;
  color: var(--color-pastry-brown);
  margin: 1.25rem 0 0.55rem;
}

.seo-article p {
  color: var(--color-text-secondary);
  margin-bottom: 0.95rem;
  font-size: var(--text-sm);
}

.seo-article a {
  color: var(--color-pastry-brown);
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.seo-article a:hover {
  color: var(--color-bake-dark);
  background: var(--color-custard-cream);
}

/* 响应式适配 (@media Queries) - 确保手机端完美单栏显示，按钮适合手指点击 */
@media (max-width: 992px) {
  .hero-grid,
  .advantages-grid,
  .pricing-grid,
  .uikit-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .price-card.featured {
    transform: none;
  }
}

@media (max-width: 768px) {
  :root {
    --section-py: 3.5rem;
    --text-3xl: 2rem;
    --text-2xl: 1.65rem;
  }

  .header-inner {
    flex-direction: column;
    padding: 0.85rem 0;
  }

  .main-nav {
    justify-content: center;
    width: 100%;
  }

  /* 手机端全部单栏显示 */
  .advantages-grid,
  .media-ai-grid,
  .pricing-grid,
  .uikit-grid,
  .reviews-grid,
  .hero-metrics {
    grid-template-columns: 1fr;
  }

  /* 按钮适合手指点击 */
  .hero-actions {
    flex-direction: column;
  }

  .btn,
  .btn-lg,
  .header-cta .btn {
    width: 100%;
    min-height: 50px;
    padding: 0.9rem 1.25rem;
    font-size: 1rem;
  }

  .seo-article {
    padding: 1.45rem;
  }

  .footer-only-four {
    flex-direction: column;
    gap: 0.85rem;
  }

  .footer-only-four a {
    width: 100%;
    text-align: center;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
}