/* ==========================================================================
   LoveShine Web - 核心样式表 (Global & Landing Page Styles)
   ========================================================================== */

:root {
  /* 品牌核心色彩 - 提取自 LoveShine 品牌暖金与浪漫紫粉 */
  --primary: #F59E0B;
  --primary-hover: #D97706;
  --primary-light: #FEF3C7;
  --primary-gradient: linear-gradient(135deg, #FFB800 0%, #FF8C00 100%);
  --brand-warm-bg: linear-gradient(180deg, #FFFBEB 0%, #FFFDF5 100%);
  --brand-gold-text: #88632F;
  --accent-purple: #8B5CF6;
  --accent-purple-light: #F3E8FF;
  --accent-pink: #EC4899;
  --accent-gradient: linear-gradient(135deg, #8B5CF6 0%, #EC4899 100%);

  /* 中性色系 */
  --text-main: #0F172A;
  --text-muted: #475569;
  --text-light: #94A3B8;
  --bg-page: #FAF9F6;
  --bg-card: #FFFFFF;
  --bg-glass: rgba(255, 255, 255, 0.85);
  --border-light: rgba(226, 232, 240, 0.8);
  --border-focus: #FCD34D;

  /* 阴影与微光 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 24px -4px rgba(136, 99, 47, 0.08), 0 4px 12px -2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 20px 40px -8px rgba(136, 99, 47, 0.12), 0 8px 16px -4px rgba(0, 0, 0, 0.05);
  --shadow-glow: 0 0 40px rgba(245, 158, 11, 0.25);

  /* 尺寸与圆角 */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  --container-max: 1200px;
  --header-height: 72px;

  /* 动画 */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text-main);
  background-color: var(--bg-page);
  scroll-behavior: smooth;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

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

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

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

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

/* 按钮规范 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 15px;
  transition: all var(--transition-normal);
  text-align: center;
}

.btn-primary {
  background: var(--primary-gradient);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(245, 158, 11, 0.45);
}

.btn-secondary {
  background: #FFFFFF;
  color: var(--text-main);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: #F8FAFC;
  transform: translateY(-2px);
  border-color: #CBD5E1;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 13px;
}

.btn-lg {
  padding: 14px 32px;
  font-size: 16px;
}

/* 顶部导航栏 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.6);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.5px;
}

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(245, 158, 11, 0.2);
  object-fit: cover;
}

.brand-text {
  background: linear-gradient(135deg, #1E293B 0%, #88632F 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-tag {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: var(--primary-light);
  color: var(--brand-gold-text);
  margin-left: 2px;
}

.nav-wrap nav {
  margin-left: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary-hover);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 32px;
  height: 32px;
  justify-content: center;
  align-items: center;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* Hero 首屏区 */
.hero-section {
  padding-top: calc(var(--header-height) + 50px);
  padding-bottom: 80px;
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 50% 20%, rgba(255, 234, 160, 0.4) 0%, rgba(255, 253, 245, 0) 70%);
}

.hero-glow {
  position: absolute;
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(circle, rgba(251, 191, 36, 0.2) 0%, rgba(139, 92, 246, 0.08) 60%, transparent 80%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 48px;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  color: var(--brand-gold-text);
  box-shadow: 0 2px 10px rgba(136, 99, 47, 0.06);
  margin-bottom: 24px;
}

.hero-badge .sparkle {
  color: var(--primary);
}

.hero-title {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -1px;
  color: #0F172A;
  margin-bottom: 20px;
}

.hero-title .highlight {
  background: linear-gradient(135deg, #EAB308 0%, #D97706 50%, #EC4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 540px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 28px;
  padding-top: 24px;
  border-top: 1px solid rgba(226, 232, 240, 0.8);
}

.meta-item {
  display: flex;
  flex-direction: column;
}

.meta-number {
  font-size: 22px;
  font-weight: 800;
  color: #1E293B;
}

.meta-label {
  font-size: 12px;
  color: var(--text-light);
}

/* 手机模型展示区 */
.phone-mockup-wrap {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.phone-card {
  width: 320px;
  background: #FFFFFF;
  border-radius: 44px;
  padding: 12px;
  box-shadow: 0 25px 60px -15px rgba(15, 23, 42, 0.25), 0 0 0 1px rgba(0, 0, 0, 0.05);
  position: relative;
  z-index: 2;
  transform: rotate(-1deg);
  transition: transform 0.4s ease;
}

.phone-card:hover {
  transform: rotate(0deg) scale(1.02);
}

.phone-screen {
  background: #F8FAFC;
  border-radius: 34px;
  overflow: hidden;
  border: 1px solid #E2E8F0;
  display: flex;
  flex-direction: column;
}

.phone-notch {
  height: 24px;
  background: transparent;
  display: flex;
  justify-content: center;
  align-items: center;
}

.notch-pill {
  width: 80px;
  height: 18px;
  background: #0F172A;
  border-radius: 20px;
  margin-top: 4px;
}

.mockup-chat {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 200px;
}

.chat-bubble {
  max-width: 85%;
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 13px;
  line-height: 1.5;
}

.chat-other {
  align-self: flex-start;
  background: #FFFFFF;
  color: #1E293B;
  border-bottom-left-radius: 4px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

.chat-me {
  align-self: flex-end;
  background: var(--primary-gradient);
  color: #FFFFFF;
  border-bottom-right-radius: 4px;
}

/* 键盘助攻卡片展示 */
.mockup-keyboard {
  background: #FFFFFF;
  border-top: 1px solid #E2E8F0;
  padding: 12px;
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.03);
}

.kb-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.kb-persona-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  color: var(--brand-gold-text);
  background: #FEF3C7;
  padding: 3px 8px;
  border-radius: var(--radius-full);
}

.kb-suggestions {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.suggestion-chip {
  background: #F1F5F9;
  padding: 8px 10px;
  border-radius: 10px;
  font-size: 12px;
  color: #334155;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

.suggestion-chip.active {
  background: #FFFBEB;
  border-color: #FCD34D;
  color: #92400E;
  font-weight: 600;
}

.floating-badge {
  position: absolute;
  background: #FFFFFF;
  padding: 10px 16px;
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  z-index: 3;
  animation: float 4s ease-in-out infinite;
}

.badge-top-right {
  top: 30px;
  right: -20px;
}

.badge-bottom-left {
  bottom: 40px;
  left: -20px;
  animation-delay: -2s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* Section 通用规范 */
.section {
  padding: 96px 0;
  position: relative;
}

.section-alt {
  background-color: #FFFFFF;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 64px auto;
}

.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--primary);
  margin-bottom: 12px;
  background: var(--primary-light);
  padding: 4px 14px;
  border-radius: var(--radius-full);
}

.section-title {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
  color: #0F172A;
}

.section-desc {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* 核心特性网格 */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
}

.feature-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.section-alt .feature-card {
  background: #FAF9F6;
  border-color: #E2E8F0;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: #FCD34D;
}

.feature-icon-box {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 24px;
  background: var(--primary-light);
  color: var(--primary-hover);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.15);
}

.feature-icon-purple {
  background: var(--accent-purple-light);
  color: var(--accent-purple);
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.15);
}

.feature-icon-pink {
  background: #FCE7F3;
  color: var(--accent-pink);
  box-shadow: 0 4px 12px rgba(236, 72, 153, 0.15);
}

.feature-icon-blue {
  background: #E0F2FE;
  color: #0284C7;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.15);
}

.feature-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: #1E293B;
}

.feature-text {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* 交互式键盘演示区 (Interactive Demo Section) */
.demo-container {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
}

.demo-sidebar {
  padding: 40px;
  background: #FAF9F6;
  border-right: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.scenario-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 24px;
}

.scenario-btn {
  padding: 16px 20px;
  border-radius: var(--radius-md);
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  text-align: left;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: all var(--transition-fast);
}

.scenario-btn.active {
  background: #FEF3C7;
  border-color: #FCD34D;
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.12);
}

.scenario-icon {
  font-size: 22px;
}

.scenario-info h4 {
  font-size: 15px;
  font-weight: 700;
  color: #1E293B;
  margin-bottom: 2px;
}

.scenario-info p {
  font-size: 12px;
  color: var(--text-muted);
}

.demo-preview {
  padding: 40px;
  display: flex;
  flex-direction: column;
  background: #FFFFFF;
}

.preview-window {
  border: 1px solid #E2E8F0;
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.window-header {
  background: #F8FAFC;
  padding: 14px 20px;
  border-bottom: 1px solid #E2E8F0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.window-title {
  font-size: 14px;
  font-weight: 600;
  color: #334155;
  display: flex;
  align-items: center;
  gap: 8px;
}

.window-body {
  padding: 24px;
  background: #F1F5F9;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 240px;
}

.window-keyboard-box {
  background: #FFFFFF;
  border-top: 1px solid #E2E8F0;
  padding: 20px;
}

.keyboard-action-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--brand-gold-text);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.reply-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.reply-card {
  padding: 12px 16px;
  background: #FAF9F6;
  border: 1px solid #E2E8F0;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.reply-card:hover {
  background: #FFFBEB;
  border-color: #FCD34D;
  transform: translateX(4px);
}

.reply-meta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.reply-tag {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
}

.tag-sweet { background: #FCE7F3; color: #BE185D; }
.tag-wit { background: #FEF3C7; color: #B45309; }
.tag-warm { background: #EDE9FE; color: #6D28D9; }

.reply-text {
  font-size: 13px;
  color: #1E293B;
  font-weight: 500;
}

/* 人设市场画卷展示 */
.personas-carousel {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.persona-card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.persona-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.persona-banner {
  height: 110px;
  position: relative;
  display: flex;
  align-items: flex-end;
  padding: 16px;
}

.banner-1 { background: linear-gradient(135deg, #FDE68A 0%, #F59E0B 100%); }
.banner-2 { background: linear-gradient(135deg, #DDD6FE 0%, #8B5CF6 100%); }
.banner-3 { background: linear-gradient(135deg, #FBCFE8 0%, #EC4899 100%); }
.banner-4 { background: linear-gradient(135deg, #BAE6FD 0%, #0284C7 100%); }

.persona-avatar {
  width: 64px;
  height: 64px;
  border-radius: 20px;
  border: 3px solid #FFFFFF;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  background: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  position: absolute;
  bottom: -24px;
  left: 20px;
}

.persona-content {
  padding: 36px 20px 24px 20px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.persona-name {
  font-size: 18px;
  font-weight: 700;
  color: #0F172A;
  margin-bottom: 6px;
}

.persona-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.p-badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 6px;
  background: #F1F5F9;
  color: #475569;
}

.persona-quote {
  font-size: 13px;
  color: #64748B;
  font-style: italic;
  line-height: 1.6;
  background: #F8FAFC;
  padding: 10px 14px;
  border-radius: 10px;
  border-left: 3px solid #F59E0B;
  margin-top: auto;
}

/* 亲密度养成板块 */
.intimacy-box {
  background: linear-gradient(135deg, #FFFBEB 0%, #FEF3C7 50%, #FEE2E2 100%);
  border-radius: var(--radius-lg);
  padding: 48px;
  border: 1px solid rgba(245, 158, 11, 0.2);
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 40px;
}

.intimacy-content h3 {
  font-size: 30px;
  font-weight: 800;
  color: #78350F;
  margin-bottom: 16px;
}

.intimacy-content p {
  font-size: 16px;
  color: #92400E;
  line-height: 1.8;
  margin-bottom: 24px;
}

.intimacy-steps {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.step-row {
  display: flex;
  align-items: center;
  gap: 16px;
  background: rgba(255, 255, 255, 0.7);
  padding: 12px 18px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.9);
}

.step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #F59E0B;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
}

.step-text strong {
  display: block;
  font-size: 14px;
  color: #78350F;
}

.step-text span {
  font-size: 12px;
  color: #92400E;
}

/* 隐私安全板块 */
.security-section {
  background: #0F172A;
  color: #FFFFFF;
}

.security-section .section-title {
  color: #FFFFFF;
}

.security-section .section-desc {
  color: #94A3B8;
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.security-card {
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.3s ease;
}

.security-card:hover {
  background: rgba(30, 41, 59, 1);
  border-color: rgba(245, 158, 11, 0.5);
  transform: translateY(-4px);
}

.security-icon {
  font-size: 32px;
  margin-bottom: 20px;
}

.security-card h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: #F8FAFC;
}

.security-card p {
  font-size: 14px;
  color: #94A3B8;
  line-height: 1.7;
}

/* 常见问题 FAQ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.faq-item.active {
  border-color: #FCD34D;
  box-shadow: var(--shadow-sm);
}

.faq-question {
  width: 100%;
  padding: 22px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  font-size: 16px;
  font-weight: 700;
  color: #1E293B;
  gap: 16px;
}

.faq-toggle-icon {
  font-size: 18px;
  transition: transform 0.3s ease;
  color: #94A3B8;
}

.faq-item.active .faq-toggle-icon {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding-bottom: 22px;
  transition: max-height 0.3s cubic-bezier(1, 0, 1, 0);
}

/* 下载行动呼吁 CTA Banner */
.cta-banner {
  background: linear-gradient(135deg, #1E293B 0%, #0F172A 100%);
  border-radius: var(--radius-lg);
  padding: 64px 48px;
  text-align: center;
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  margin-bottom: 40px;
}

.cta-banner-glow {
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 300px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.3) 0%, transparent 70%);
  filter: blur(60px);
}

.cta-title {
  font-size: 38px;
  font-weight: 800;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.cta-subtitle {
  font-size: 17px;
  color: #94A3B8;
  max-width: 600px;
  margin: 0 auto 36px auto;
  position: relative;
  z-index: 1;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  position: relative;
  z-index: 1;
}

/* 网站页脚 Footer */
.site-footer {
  background: #FFFFFF;
  border-top: 1px solid var(--border-light);
  padding: 64px 0 32px 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 16px;
  line-height: 1.7;
  max-width: 320px;
}

.footer-col h5 {
  font-size: 14px;
  font-weight: 700;
  color: #1E293B;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col a {
  font-size: 14px;
  color: var(--text-muted);
}

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

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid #F1F5F9;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-light);
  flex-wrap: wrap;
  gap: 16px;
}

.footer-legal-links {
  display: flex;
  gap: 20px;
}

body.webview-mode .site-footer {
  display: none !important;
}

/* 响应式适配 (Responsive Media Queries) */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 60px;
  }

  .hero-desc {
    margin: 0 auto 36px auto;
  }

  .hero-cta {
    justify-content: center;
  }

  .hero-meta {
    justify-content: center;
  }

  .demo-container {
    grid-template-columns: 1fr;
  }

  .demo-sidebar {
    border-right: none;
    border-bottom: 1px solid var(--border-light);
  }

  .intimacy-box {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 768px) {
  .hero-title {
    font-size: 34px;
  }

  .section-title {
    font-size: 28px;
  }

  .nav-links, .nav-actions .btn-download {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-mobile-open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: #FFFFFF;
    padding: 24px;
    box-shadow: var(--shadow-lg);
    border-bottom: 1px solid var(--border-light);
  }

  .cta-banner {
    padding: 40px 24px;
  }

  .cta-title {
    font-size: 26px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}