@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,500;0,600;0,700;1,500&family=Noto+Serif+SC:wght@600;700&display=swap');

/* ==========================================================================
   沐栩AI - 官方网站设计系统与样式规范
   视觉风格：温润、留白、呼吸感、克制、东方审美
   ========================================================================== */

:root {
  /* 品牌色与调色体系 */
  --bg-main: #F4F5F2;       /* 融入微弱绿调的温润纸张底色，高度契合工作台色彩 */
  --bg-sub: #E6ECE9;        /* 带有优雅微绿调的灰色，用以拉开层级 */
  --card-bg: #FFFFFF;       /* 纯白卡片底色，在背景上具有强烈质感 */
  
  --text-main: #111A16;     /* 主文字：融入微弱绿调的深灰，柔和高易读 */
  --text-muted: #556660;    /* 次文字：舒适的绿灰 */
  --text-helper: #889993;   /* 辅助文字：淡雅灰色 */
  
  --color-primary: #116E53; /* 强调色：视频生成工作台同款经典深墨绿，高级沉稳 */
  --color-accent-orange: #E26E4A; /* 生图主题色：暖杏橙，极简温润 */
  --color-accent-teal: #116E53;   /* 视频主题色：工作台森绿，极具质感 */
  
  --border-color: #EBEBEB;  /* 若隐若现的浅灰边框 */
  --border-hover: #D0D0D0;  /* 稍深的边框，用于交互悬停反馈 */
  
  /* 柔和阴影体系 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.02), 0 1px 2px rgba(0, 0, 0, 0.01);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.04), 0 2px 6px rgba(0, 0, 0, 0.01);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.06), 0 4px 12px rgba(0, 0, 0, 0.02);
  --shadow-xl: 0 32px 72px rgba(0, 0, 0, 0.08), 0 8px 24px rgba(0, 0, 0, 0.03);

  /* 圆角规范 */
  --radius-sm: 8px;   /* 小圆角：按钮 */
  --radius-md: 12px;  /* 中圆角：卡片 */
  --radius-lg: 20px;  /* 大圆角：特性大卡片 */
  --radius-xl: 28px;  /* 超大圆角：CTA区 */
  --radius-full: 100px; /* 胶囊按钮 */

  /* 物理缓动曲线 */
  --transition-smooth: 0.3s cubic-bezier(0.25, 1, 0.5, 1);
  --transition-elastic: 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.1);
}

/* ==========================================================================
   全局重置与抗锯齿优化
   ========================================================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
  width: 100%;
}

body {
  min-width: 320px;
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-smooth);
}

body.no-scroll {
  overflow: hidden;
}

/* ==========================================================================
   排版与标题设计
   ========================================================================== */
h1, h2, h3, h4 {
  color: var(--text-main);
  font-weight: 600;
  line-height: 1.3;
}

h1 {
  font-family: "Lora", "Noto Serif SC", Georgia, STSong, serif;
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

h2 {
  font-family: "Lora", "Noto Serif SC", Georgia, STSong, serif;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  letter-spacing: -0.01em;
  line-height: 1.35;
}

h3 {
  font-family: "Lora", "Noto Serif SC", Georgia, STSong, serif;
  font-size: 1.25rem;
  letter-spacing: 0;
}

p {
  color: var(--text-muted);
}

/* 眉标标签 */
.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em; /* 字母间距0.08em */
  color: var(--text-muted);
  margin-bottom: 16px;
  position: relative;
  padding-left: 12px;
}

.eyebrow::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

/* 渐变标题字 */
.gradient-text {
  background: linear-gradient(135deg, #666666, #999999);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ==========================================================================
   导航栏 (Header)
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px clamp(24px, 6vw, 80px);
  background-color: rgba(255, 255, 255, 0.8); /* 初始透明度0.8 */
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent; /* 初始边框透明 */
  transition: 
    padding var(--transition-smooth), 
    background-color var(--transition-smooth), 
    border-color var(--transition-smooth),
    box-shadow var(--transition-smooth);
}

/* 滚动行为样式 */
.site-header.scrolled {
  padding: 16px clamp(24px, 6vw, 80px);
  background-color: rgba(255, 255, 255, 0.9); /* 滚动后透明度0.9 */
  border-color: #EBEBEB; /* 滚动超过50px边框显现 */
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
}

/* Logo 还原与优化 */
.brand {
  display: inline-flex;
  align-items: center;
  height: 28px; /* 还原为图片适配 */
  z-index: 102;
  transition: height var(--transition-smooth);
}

.site-header.scrolled .brand {
  height: 24px; /* 滚动时平滑收窄 */
}

.brand img {
  display: block;
  height: 100%;
  width: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.site-nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: #666; /* 默认#666 */
  position: relative;
  padding: 6px 0;
  transition: color var(--transition-smooth);
}

.site-nav a:hover {
  color: #1A1A1A; /* hover变为#1A1A1A */
}

/* 导航栏 CTA 按钮 */
.header-actions {
  z-index: 102;
}

.header-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 20px;
  background-color: var(--color-primary);
  color: #FFFFFF;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-full); /* 胶囊形 */
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), background-color var(--transition-smooth);
}

.header-cta-btn:hover {
  transform: translateY(-2px); /* hover时微微上浮2px */
  box-shadow: var(--shadow-md); /* 加深阴影 */
  background-color: #0B5A42; /* Hover时加深墨绿 */
}

/* 移动端菜单按钮 */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--text-main);
  z-index: 102;
}

.menu-toggle:focus {
  outline: none;
}

.menu-toggle line {
  transition: transform var(--transition-smooth), opacity var(--transition-smooth);
  transform-origin: center;
}

.nav-open .menu-toggle .line-top {
  transform: translateY(4px) rotate(45deg);
}
.nav-open .menu-toggle .line-mid {
  opacity: 0;
}
.nav-open .menu-toggle .line-bottom {
  transform: translateY(-4px) rotate(-45deg);
}

/* ==========================================================================
   Hero 区域 (弥散光晕 + 文字 + 3卡片交错堆叠)
   ========================================================================== */
.hero {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(40px, 6vw, 90px);
  align-items: center;
  min-height: 100vh;
  padding: 150px clamp(24px, 6vw, 80px) 100px;
  max-width: 1400px;
  margin: 0 auto;
  overflow: visible; /* 允许堆叠卡片稍微溢出 */
}

/* 弥散光晕 */
.hero-glow {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(120px);
  z-index: 0;
  will-change: transform, opacity;
}

/* 光晕1: 600px, 右上, opacity 0.15 */
.glow-1 {
  width: 600px;
  height: 600px;
  background-color: #E8E8E8;
  top: -100px;
  right: -100px;
  opacity: 0.15;
}

/* 光晕2: 400px, 左下, opacity 0.15 */
.glow-2 {
  width: 400px;
  height: 400px;
  background-color: #D4D4D4;
  bottom: -50px;
  left: -100px;
  opacity: 0.15;
}

.hero-content {
  position: relative;
  z-index: 10;
}

/* 徽章标签 */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background-color: rgba(45, 45, 45, 0.04);
  border: 1px solid rgba(45, 45, 45, 0.08);
  border-radius: var(--radius-full);
  margin-bottom: 24px;
}

.badge-dot {
  width: 6px;
  height: 6px;
  background-color: #22C55E; /* 绿色呼吸灯点 */
  border-radius: 50%;
  position: relative;
  animation: badge-pulse 2s infinite ease-in-out;
}

@keyframes badge-pulse {
  0%, 100% {
    transform: scale(0.9);
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4);
  }
  50% {
    transform: scale(1.1);
    box-shadow: 0 0 0 5px rgba(34, 197, 94, 0);
  }
}

.badge-text {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.hero h2 {
  margin-bottom: 24px;
}

.hero h1 span {
  display: block;
}

.hero h1 span:first-child {
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  color: var(--text-main);
  margin-bottom: 4px;
}

.hero-copy {
  font-size: clamp(1rem, 1.4vw, 1.12rem);
  line-height: 1.75;
  color: var(--text-muted);
  margin-bottom: 40px;
  max-width: 480px; /* 最大宽度 480px */
}

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

/* 按钮样式 */
.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: 
    transform var(--transition-smooth), 
    background-color var(--transition-smooth), 
    border-color var(--transition-smooth),
    box-shadow var(--transition-smooth);
}

.primary-action {
  background-color: var(--color-primary);
  color: #FFFFFF;
  border: 1px solid var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.primary-action:hover {
  background-color: #0B5A42;
  border-color: #0B5A42;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.secondary-action {
  background-color: var(--card-bg);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.secondary-action:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* 3张卡片交错堆叠视觉区 */
.product-preview {
  position: relative;
  z-index: 10;
  width: 100%;
  height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stacked-card {
  position: absolute;
  width: 520px;
  height: 347px;
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 16px;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), z-index 0.3s ease;
  cursor: pointer;
  will-change: transform;
}

/* 两张卡片的角度偏转：-3° (上层), 3° (下层) */
.card-middle {
  transform: rotate(3deg) translate(15px, 15px);
  z-index: 1;
}

.card-top {
  transform: rotate(-3deg) translate(-15px, -15px);
  z-index: 2;
}

/* Hover 时顶层卡片上浮并摆正 */
.stacked-card:hover {
  z-index: 10 !important;
  box-shadow: var(--shadow-xl);
}

.card-top:hover {
  transform: rotate(0deg) translate(-15px, -15px) translateY(-10px);
}

.card-middle:hover {
  transform: rotate(0deg) translate(15px, 15px) translateY(-10px);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
}

.card-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.card-dot.red { background-color: var(--color-accent-orange); }
.card-dot.yellow { background-color: #EAB308; }
.card-dot.green { background-color: var(--color-accent-teal); }

.card-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-main);
}

.card-visual {
  flex-grow: 1;
  border-radius: var(--radius-sm);
  background-color: var(--bg-sub);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

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


.video-visual {
  background: linear-gradient(135deg, rgba(73, 143, 140, 0.1), rgba(73, 143, 140, 0.02)), var(--bg-sub);
}

.image-visual {
  background: linear-gradient(135deg, rgba(226, 110, 74, 0.1), rgba(226, 110, 74, 0.02)), var(--bg-sub);
}

/* 智能提示词卡片资源样式已弃用 */

/* ==========================================================================
   数据条 (Stats Bar)
   ========================================================================== */
.stats-bar {
  background-color: var(--card-bg); /* 白底 */
  border-top: 1px solid var(--border-color); /* 顶部1px细线 */
  border-bottom: 1px solid var(--border-color); /* 底部1px细线 */
  padding: 48px clamp(24px, 6vw, 80px);
  position: relative;
  z-index: 10;
}

.stats-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr); /* 数据条 3列 */
  gap: 28px;
  text-align: center;
}

.stats-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stats-number {
  font-size: 2rem; /* 数字大而醒目 */
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.15;
}

.stats-label {
  font-size: 0.82rem; /* 标签小而灰 */
  color: var(--text-helper);
  font-weight: 500;
}

/* ==========================================================================
   页面通用排版区块
   ========================================================================== */
.section {
  padding: clamp(80px, 12vw, 140px) clamp(24px, 6vw, 80px);
  max-width: 1400px;
  margin: 0 auto;
}

.section-heading {
  max-width: 600px;
  margin-bottom: 40px;
}

.section-heading.center {
  text-align: center;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 60px;
}

.section-heading.center .eyebrow {
  padding-left: 0;
}

.section-heading.center .eyebrow::before {
  display: none;
}

.section-desc {
  font-size: 1.02rem;
  color: var(--text-muted);
  margin-top: 16px;
}

/* ==========================================================================
   产品愿景介绍 (.intro)
   ========================================================================== */
.intro {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: center; /* 垂直居中 */
}

.intro-text {
  max-width: 520px;
}

.intro-text h2 {
  margin-top: 8px;
}

.intro-text p {
  font-size: 1.02rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-top: 24px;
}

.intro-media {
  overflow: hidden;
}

.intro-media img {
  display: block;
  width: 100%;
  height: auto;
}

/* ==========================================================================
   产品特性区 (Feature Grid - 3列)
   ========================================================================== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr); /* PC 特性区 2列 */
  gap: 30px;
}

.feature-card {
  background-color: var(--card-bg); /* 白底/浅灰底 */
  border: 1px solid var(--border-color); /* 1px浅边框 */
  border-radius: 20px; /* 大圆角 20px */
  padding: 40px 32px; /* 内边距 */
  box-shadow: var(--shadow-sm);
  transition: 
    transform var(--transition-smooth), 
    border-color var(--transition-smooth), 
    box-shadow var(--transition-smooth);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  will-change: transform;
}

/* Hover时：边框加深、阴影出现、卡片上浮4px */
.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}

.feature-icon-wrapper {
  width: 52px; /* 52x52 */
  height: 52px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-sub); /* 默认浅灰底色 */
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  border: 1px solid var(--border-color);
  transition: background-color var(--transition-smooth), border-color var(--transition-smooth);
}

.feature-icon {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  transition: color var(--transition-smooth);
}

/* Hover时：变为深色+白色图标 */
.feature-card:hover .feature-icon-wrapper {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

.feature-card:hover .feature-icon {
  color: #FFFFFF;
}

.feature-card h3 {
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-muted);
}

/* ==========================================================================
   作品展示区 (4列 - 8种色彩)
   ========================================================================== */
.showcase-section {
  margin-bottom: 56px;
}

.showcase-section:last-child {
  margin-bottom: 0;
}

.showcase-subtitle {
  font-family: "Lora", "Noto Serif SC", Georgia, STSong, serif;
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-main);
}

.sub-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent-orange);
  display: inline-block;
}

.sub-dot.video {
  background-color: var(--color-accent-teal);
}

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.showcase-card {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
  cursor: pointer;
  will-change: transform;
}

.showcase-card:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-lg);
}

.showcase-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
  z-index: 1;
}

/* .showcase-card:hover .showcase-media {
  transform: scale(1.06);
} */

.showcase-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(17, 26, 22, 0.75) 0%, rgba(17, 26, 22, 0.2) 60%, transparent 100%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
}

.showcase-tag {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 4px;
  margin-bottom: 8px;
  color: #FFFFFF;
  background-color: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.showcase-card:nth-child(even) .showcase-tag {
  background-color: rgba(17, 110, 83, 0.25);
  border-color: rgba(17, 110, 83, 0.3);
  color: #A3F7DF;
}

.showcase-card:nth-child(odd) .showcase-tag {
  background-color: rgba(226, 110, 74, 0.25);
  border-color: rgba(226, 110, 74, 0.3);
  color: #FFE6DF;
}

.showcase-card-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: #FFFFFF;
  margin: 0;
  letter-spacing: -0.01em;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
}

/* 放大镜微按钮 */
.showcase-zoom-btn {
  position: absolute;
  bottom: 16px;
  right: 16px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.75); /* 调高毛玻璃背景对比度 */
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: var(--color-accent-teal); /* 图标默认设为产品强调色（深墨绿） */
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 5;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  opacity: 0;
  transform: scale(0.9) translateY(4px);
  transition: 
    opacity var(--transition-smooth), 
    transform var(--transition-smooth), 
    background-color var(--transition-smooth), 
    border-color var(--transition-smooth),
    color var(--transition-smooth);
}

.showcase-card:hover .showcase-zoom-btn,
.stacked-card:hover .showcase-zoom-btn {
  opacity: 1;
  transform: scale(1) translateY(0);
}

.showcase-zoom-btn:hover {
  background-color: var(--color-accent-teal) !important; /* Hover 时背景变成墨绿 */
  border-color: var(--color-accent-teal) !important;
  color: #FFFFFF !important; /* Hover 时图标反白 */
  transform: scale(1.08) !important;
}

.showcase-zoom-btn svg {
  display: block;
  transition: transform var(--transition-smooth);
}

.showcase-zoom-btn:hover svg {
  transform: rotate(90deg);
}

/* ==========================================================================
   小程序体验区
   ========================================================================== */
.feature-band.alt {
  background-color: var(--bg-sub);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: clamp(80px, 10vw, 120px) clamp(24px, 6vw, 80px);
}

.miniapp-wrapper {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: clamp(40px, 6vw, 100px);
  align-items: center;
}

.miniapp-visual {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.miniapp-card {
  background: linear-gradient(135deg, #FAF8F5 0%, #F3F8F8 100%); /* 渐变流光底色 */
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 20px;
  align-items: center;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.miniapp-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.miniapp-card img {
  width: 72px;
  height: 72px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 12px rgba(45, 45, 45, 0.08);
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.miniapp-card:hover img {
  transform: scale(1.05);
}

.miniapp-card-info strong {
  font-size: 1.35rem;
  font-weight: 700;
  display: block;
  margin-bottom: 2px;
}

.miniapp-card-info span {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.miniapp-actions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.miniapp-actions span {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 56px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
  transition: 
    transform var(--transition-smooth), 
    border-color var(--transition-smooth),
    background-color var(--transition-smooth),
    color var(--transition-smooth),
    box-shadow var(--transition-smooth);
  cursor: pointer;
}

/* 第一个按钮：AI生图 - 淡杏橙底色 */
.miniapp-actions span:nth-child(1) {
  background-color: rgba(226, 110, 74, 0.06);
  border: 1px solid rgba(226, 110, 74, 0.12);
  color: #A3482C;
}

.miniapp-actions span:nth-child(1):hover {
  background-color: rgba(226, 110, 74, 0.12);
  border-color: rgba(226, 110, 74, 0.25);
  color: var(--color-accent-orange);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* 第二个按钮：AI视频 - 淡雅青底色 */
.miniapp-actions span:nth-child(2) {
  background-color: rgba(73, 143, 140, 0.06);
  border: 1px solid rgba(73, 143, 140, 0.12);
  color: #2F615F;
}

.miniapp-actions span:nth-child(2):hover {
  background-color: rgba(73, 143, 140, 0.12);
  border-color: rgba(73, 143, 140, 0.25);
  color: var(--color-accent-teal);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* 第三个按钮：快速生成 - 淡杏黄底色 */
.miniapp-actions span:nth-child(3) {
  background-color: rgba(198, 154, 53, 0.06);
  border: 1px solid rgba(198, 154, 53, 0.12);
  color: #8C661D;
}

.miniapp-actions span:nth-child(3):hover {
  background-color: rgba(198, 154, 53, 0.12);
  border-color: rgba(198, 154, 53, 0.25);
  color: #C69A35;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ==========================================================================
   效能对比区 (Comparison)
   ========================================================================== */
.comparison-container {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  box-shadow: var(--shadow-md);
  overflow: hidden;
  max-width: 1100px;
  margin: 0 auto;
}

.comparison-side {
  padding: 60px 80px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.comparison-side.traditional {
  background-color: rgba(0, 0, 0, 0.008); /* 背景略有区分 */
}

.comparison-side.ai-generated {
  background-color: var(--card-bg);
}

.comparison-divider {
  width: 1px; /* 中间1px分隔线 */
  background-color: var(--border-color);
  align-self: stretch;
}

.comparison-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background-color: rgba(45, 45, 45, 0.05);
  border-radius: 4px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.comparison-badge.active {
  background-color: rgba(73, 143, 140, 0.08);
  color: var(--color-accent-teal);
}

.comparison-side h3 {
  font-size: 2.4rem; /* 醒目的出图时间 */
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
}

.comparison-side.ai-generated h3 {
  background: linear-gradient(135deg, var(--color-primary), #666);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.comparison-side p {
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text-muted);
}

/* ==========================================================================
   CTA 咨询区 (深色卡片大圆角)
   ========================================================================== */
.contact-section {
  padding: 40px clamp(24px, 6vw, 80px) 120px;
}

.cta-container {
  background-color: #2D2D2D; /* 全宽深色卡片 */
  border-radius: 28px; /* 超大圆角28px */
  padding: 80px 100px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  box-shadow: var(--shadow-xl);
  max-width: 1240px;
  margin: 0 auto;
}

/* 右上角径向光晕 */
.cta-glow {
  position: absolute;
  top: -150px;
  right: -150px;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.cta-content {
  max-width: 600px;
  position: relative;
  z-index: 2;
}

.eyebrow-light {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.45);
  margin-bottom: 16px;
}

.cta-content h2 {
  color: #FFFFFF; /* 白色大标题 */
  margin-bottom: 16px;
  font-size: 2.2rem;
}

.cta-content p {
  color: rgba(255, 255, 255, 0.7); /* 半透明白色描述 */
  font-size: 1.05rem;
  line-height: 1.7;
}

.cta-action-wrapper {
  position: relative;
  z-index: 2;
}

.cta-primary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 36px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  background-color: #FFFFFF; /* 白底深色文字 */
  color: #2D2D2D;
  border: 1px solid #FFFFFF;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), background-color var(--transition-smooth);
  white-space: nowrap;
}

.cta-primary-btn:hover {
  transform: translateY(-2px); /* hover上浮 */
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15); /* +阴影 */
  background-color: #F5F5F5;
}

/* ==========================================================================
   页脚 (Footer)
   ========================================================================== */
.site-footer {
  background-color: var(--bg-sub); /* 浅灰底色 */
  border-top: 1px solid var(--border-color); /* 顶部1px边框 */
  padding: 40px clamp(24px, 6vw, 80px);
  display: flex;
  justify-content: space-between; /* 左右布局 */
  align-items: center;
  max-width: 100%;
  margin: 0 auto;
}

.copyright {
  font-size: 0.85rem;
  color: var(--text-helper);
}

.footer-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--text-helper);
}

.footer-nav a:hover {
  color: var(--text-main);
}

.footer-dot {
  opacity: 0.4;
}

/* ==========================================================================
   响应式断点适配 (Responsive Design)
   ========================================================================== */

/* 1024px 以下：小屏笔记本/平板横屏 */
@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr; /* Hero变为单列 */
    text-align: center; /* 文字居中 */
    gap: 60px;
    padding-top: 130px;
    min-height: auto;
  }
  
  .hero-content {
    margin: 0 auto;
    max-width: 600px;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  .hero h1, .hero h2, .hero p, .hero-copy {
    text-align: center !important;
  }

  .hero-badge {
    display: inline-flex !important;
    margin-left: auto !important;
    margin-right: auto !important;
  }
  
  .hero-copy {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-actions {
    justify-content: center;
    width: 100%;
  }

  /* 移动端/平板端隐藏大型弥散光晕，优化性能并防横向滚动溢出 */
  .hero-glow {
    display: none !important;
  }

  .product-preview {
    max-width: 600px;
    margin: 0 auto;
    grid-row: 1; /* 视觉区上移（在文字上面或者被优先展示，配合移动端体验，可以作为插图堆叠） */
    height: 400px;
  }

  .stacked-card {
    width: 280px;
    height: 190px;
  }

  /* 触屏移动设备下默认直接展现放大镜按钮 */
  .showcase-zoom-btn {
    opacity: 1 !important;
    transform: scale(1) translateY(0) !important;
  }

  .stats-container {
    grid-template-columns: repeat(3, 1fr); /* 数据条保持3列 */
    gap: 20px;
  }

  .intro {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .intro-text {
    margin: 0 auto;
  }

  .intro-media {
    max-width: 680px;
    margin: 0 auto;
  }

  .feature-grid {
    grid-template-columns: repeat(2, 1fr); /* 特性卡片2列 */
  }

  .showcase-grid {
    grid-template-columns: repeat(3, 1fr); /* 作品展示3列 */
  }

  .miniapp-wrapper {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }
  
  .miniapp-visual {
    max-width: 500px;
    margin: 0 auto;
    width: 100%;
  }

  .comparison-container {
    grid-template-columns: 1fr; /* 对比变单列 */
  }

  .comparison-divider {
    height: 1px;
    width: 100%;
  }

  .cta-container {
    flex-direction: column;
    text-align: center;
    padding: 60px 48px;
    gap: 32px;
  }
  
  .cta-content {
    margin: 0 auto;
  }
  
  .cta-primary-btn {
    width: 100%;
  }
}

/* 768px 以下：平板竖屏 */
@media (max-width: 768px) {
  .menu-toggle {
    display: block; /* 导航转为汉堡菜单 */
  }

  .header-actions {
    display: none; /* 移动端隐藏顶部独立CTA，避免拥挤，可整合进菜单 */
  }

  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 280px; /* 宽度280px */
    background-color: var(--bg-main); /* 统一使用官网暖杏灰，实色不透底 */
    border-left: 1px solid var(--border-color);
    box-shadow: -10px 0 30px rgba(17, 26, 22, 0.08);
    flex-direction: column;
    align-items: flex-start;
    padding: 100px 40px 40px;
    gap: 28px;
    transform: translateX(100%); /* 默认在右侧隐藏 */
    transition: transform var(--transition-smooth); /* 从右侧滑入 */
    z-index: 101;
  }

  /* 汉堡菜单展开状态 */
  .nav-open .site-header {
    z-index: 1000 !important; /* 提升层级，防止卡片及硬件加速转换层穿透 */
  }

  .nav-open .site-nav {
    transform: translateX(0);
    height: fit-content;
  }

  .site-nav a {
    font-size: 1.1rem;
    width: 100%;
  }

  .comparison-side {
    padding: 40px;
  }
}

/* 480px 以下：手机 */
@media (max-width: 480px) {
  .site-header {
    padding: 16px 20px;
  }

  .hero {
    padding-top: 100px;
    gap: 40px;
  }

  .hero h1 span:first-child {
    font-size: 2.2rem;
  }

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

  .primary-action,
  .secondary-action {
    width: 100%;
  }

  .product-preview {
    height: 320px;
  }

  /* 手机端卡片叠加微调 */
  .stacked-card {
    width: 220px;
    height: 150px;
    padding: 10px;
  }

  .card-middle { transform: rotate(3deg) translate(10px, 10px); }
  .card-top { transform: rotate(-3deg) translate(-10px, -10px); }

  /* 手机端放大镜小尺寸微调，配合小卡片比例 */
  .showcase-zoom-btn {
    width: 28px !important;
    height: 28px !important;
    bottom: 8px !important;
    right: 8px !important;
  }
  .showcase-zoom-btn svg {
    width: 12px !important;
    height: 12px !important;
  }

  .stats-container {
    grid-template-columns: 1fr; /* 数据条手机单列 */
  }

  .feature-grid {
    grid-template-columns: 1fr; /* 特性卡片1列 */
    gap: 20px;
  }

  .feature-card {
    padding: 32px 24px;
  }

  .showcase-grid {
    grid-template-columns: repeat(2, 1fr); /* 作品展示2列 */
    gap: 12px;
  }

  .miniapp-card {
    grid-template-columns: 60px 1fr;
    padding: 16px;
  }

  .miniapp-card img {
    width: 60px;
    height: 60px;
  }

  .miniapp-card-info strong {
    font-size: 1.15rem;
  }

  .miniapp-actions {
    grid-template-columns: 1fr; /* 按钮全宽堆叠 */
    gap: 10px;
  }

  .miniapp-actions span {
    height: 48px;
  }

  .comparison-side {
    padding: 32px 20px;
  }

  .comparison-side h3 {
    font-size: 1.8rem;
  }

  .cta-container {
    padding: 40px 24px;
    border-radius: 20px;
  }

  .cta-content h2 {
    font-size: 1.7rem;
  }

  .site-footer {
    flex-direction: column; /* 移动端页脚改为居中堆叠 */
    gap: 16px;
    text-align: center;
    padding: 30px 20px;
  }

  .footer-nav {
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 12px;
  }
}

/* ==========================================================================
   Lightbox 弹窗组件样式
   ========================================================================== */
.lightbox-modal {
  position: fixed;
  inset: 0;
  background-color: rgba(17, 26, 22, 0.85); /* 黑色微绿背景 */
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s cubic-bezier(0.25, 1, 0.5, 1);
  padding: 40px;
}

.lightbox-modal.active {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-close {
  position: absolute;
  top: 30px;
  right: 40px;
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.6);
  font-size: 2.8rem;
  font-weight: 300;
  cursor: pointer;
  transition: color var(--transition-smooth), transform var(--transition-smooth);
  line-height: 1;
  z-index: 1010;
}

.lightbox-close:hover {
  color: #FFFFFF;
  transform: rotate(90deg);
}

.lightbox-content {
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 24px 72px rgba(0, 0, 0, 0.5);
  transform: scale(0.95);
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.1);
}

.lightbox-modal.active .lightbox-content {
  transform: scale(1);
}

.lightbox-content img,
.lightbox-content video {
  display: block;
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 12px;
  background-color: #000000;
}

/* 弹窗激活时禁止网页滚动 */
.lightbox-open {
  overflow: hidden;
}

@media (max-width: 1024px) {
  .showcase-grid {
    grid-template-columns: repeat(3, 1fr) !important; /* 数据覆盖均分 */
  }
}

@media (max-width: 480px) {
  .showcase-grid {
    grid-template-columns: repeat(2, 1fr) !important; /* 数据手机端2列 */
  }
  .lightbox-modal {
    padding: 20px;
  }
  .lightbox-close {
    top: 20px;
    right: 20px;
    font-size: 2.2rem;
  }
}