/* ========================================
   AIGEO - AI搜索时代品牌可见度平台
   现代深色科技风格
   ======================================== */

/* CSS 变量 */
:root {
    /* 主色调 */
    --primary: #8B5CF6;
    --primary-light: #A78BFA;
    --primary-dark: #7C3AED;
    --secondary: #06B6D4;
    --secondary-light: #22D3EE;
    
    /* 渐变 */
    --gradient-primary: linear-gradient(135deg, #8B5CF6 0%, #06B6D4 100%);
    --gradient-bg: linear-gradient(135deg, #0F0F1A 0%, #1A1A2E 50%, #16213E 100%);
    --gradient-card: linear-gradient(145deg, rgba(139, 92, 246, 0.1) 0%, rgba(6, 182, 212, 0.05) 100%);
    
    /* 文字颜色 */
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    
    /* 背景颜色 */
    --bg-primary: #0A0A0F;
    --bg-secondary: #12121A;
    --bg-tertiary: #1A1A25;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.06);
    
    /* 边框 */
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(139, 92, 246, 0.3);
    
    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 60px rgba(139, 92, 246, 0.15);
    
    /* 间距 */
    --section-padding: 100px 0;
    --container-max: 1200px;
    
    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    
    /* 过渡 */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* ========================================
   导航栏
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    font-size: 28px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
}

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

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

/* 按钮 */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(139, 92, 246, 0.4);
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: transparent;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.btn-ghost:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 14px 28px;
    background: transparent;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.btn-outline:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary);
}

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

/* ========================================
   Hero 区域
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: 0;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s infinite ease-in-out;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.3) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.2) 0%, transparent 70%);
    bottom: -150px;
    left: -150px;
    animation-delay: -7s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.15) 0%, transparent 70%);
    top: 50%;
    left: 30%;
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(20px, 10px) scale(1.02); }
}

.hero .container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.badge-icon {
    font-size: 16px;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 24px;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 32px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 32px;
}

.stat-item {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 14px;
    color: var(--text-muted);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-color);
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
}

.dashboard-preview {
    width: 100%;
    max-width: 480px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.dashboard-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.dashboard-dots {
    display: flex;
    gap: 8px;
}

.dashboard-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border-color);
}

.dashboard-dots span:nth-child(1) { background: #FF5F57; }
.dashboard-dots span:nth-child(2) { background: #FEBC2E; }
.dashboard-dots span:nth-child(3) { background: #28C840; }

.dashboard-title {
    font-size: 13px;
    color: var(--text-muted);
}

.dashboard-content {
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.metric-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    text-align: center;
}

.metric-label {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.metric-value {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.metric-change {
    font-size: 12px;
    font-weight: 600;
}

.metric-change.positive {
    color: #10B981;
}

.metric-change.negative {
    color: #EF4444;
}

.chart-placeholder {
    grid-column: span 3;
    height: 120px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    position: relative;
}

.chart-line {
    position: absolute;
    top: 50%;
    left: 16px;
    right: 16px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.chart-bars {
    position: absolute;
    bottom: 16px;
    left: 16px;
    right: 16px;
    height: 60px;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 8px;
}

.bar {
    flex: 1;
    background: var(--gradient-primary);
    border-radius: 4px 4px 0 0;
    opacity: 0.7;
    transition: var(--transition);
}

.bar:hover {
    opacity: 1;
}

/* ========================================
   合作品牌
   ======================================== */
.brands {
    padding: 60px 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.brands-title {
    text-align: center;
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 32px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.brands-list {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.brand-item {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-muted);
    opacity: 0.5;
    transition: var(--transition);
}

.brand-item:hover {
    opacity: 1;
    color: var(--text-primary);
}

/* ========================================
   通用区块样式
   ======================================== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-light);
    margin-bottom: 16px;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -1px;
    margin-bottom: 16px;
}

.section-desc {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   功能特性
   ======================================== */
.features {
    padding: var(--section-padding);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition);
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-4px);
}

.feature-card.featured {
    grid-row: span 2;
    background: var(--gradient-card);
    border-color: rgba(139, 92, 246, 0.2);
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.feature-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-desc {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    font-size: 14px;
    color: var(--text-secondary);
    padding: 8px 0;
    padding-left: 20px;
    position: relative;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 600;
}

/* ========================================
   产品方案
   ======================================== */
.products {
    padding: var(--section-padding);
    background: var(--bg-secondary);
}

.products-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 48px;
}

.tab-btn {
    padding: 12px 24px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.tab-btn.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
}

.products-content {
    position: relative;
}

.product-panel {
    display: none;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.product-panel.active {
    display: grid;
}

.product-info h3 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
}

.product-info p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
}

.product-features {
    list-style: none;
    margin-bottom: 32px;
}

.product-features li {
    font-size: 15px;
    color: var(--text-secondary);
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.product-features li:last-child {
    border-bottom: none;
}

/* Demo Card */
.demo-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
}

.demo-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    font-size: 14px;
    color: var(--text-secondary);
}

.demo-badge {
    padding: 4px 12px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    font-size: 12px;
    font-weight: 600;
    color: white;
}

.demo-badge.success {
    background: linear-gradient(135deg, #10B981 0%, #059669 100%);
}

.demo-score {
    text-align: center;
    margin-bottom: 24px;
}

.score-value {
    font-size: 56px;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.score-label {
    font-size: 20px;
    color: var(--text-muted);
}

.demo-platforms {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.platform-item {
    display: grid;
    grid-template-columns: 80px 1fr 40px;
    align-items: center;
    gap: 12px;
}

.platform-name {
    font-size: 14px;
    color: var(--text-secondary);
}

.platform-bar {
    height: 8px;
    background: var(--bg-primary);
    border-radius: 4px;
    overflow: hidden;
}

.platform-bar div {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    transition: var(--transition);
}

.platform-score {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    text-align: right;
}

/* Content Demo */
.content-preview {
    padding: 20px;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
}

.content-line {
    height: 12px;
    background: var(--bg-tertiary);
    border-radius: 6px;
    margin-bottom: 12px;
}

.content-line.short {
    width: 60%;
}

.content-line.medium {
    width: 80%;
}

.content-tags {
    display: flex;
    gap: 8px;
    margin-top: 16px;
}

.content-tags span {
    padding: 6px 12px;
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    font-size: 12px;
    color: var(--primary-light);
}

/* Monitor Demo */
.monitor-stats {
    display: flex;
    justify-content: space-around;
    padding: 20px 0;
}

.monitor-stat {
    text-align: center;
}

.monitor-stat .stat-label {
    display: block;
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.monitor-stat .stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

.monitor-stat .stat-value.positive {
    color: #10B981;
}

.monitor-stat .stat-value.negative {
    color: #EF4444;
}

/* ========================================
   定价
   ======================================== */
.pricing {
    padding: var(--section-padding);
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: stretch;
}

.pricing-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

.pricing-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-4px);
}

.pricing-card.featured {
    background: var(--gradient-card);
    border-color: rgba(139, 92, 246, 0.3);
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-4px);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 16px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    font-size: 12px;
    font-weight: 600;
    color: white;
}

.pricing-header {
    margin-bottom: 24px;
}

.pricing-name {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 8px;
}

.pricing-desc {
    font-size: 14px;
    color: var(--text-muted);
}

.pricing-price {
    margin-bottom: 32px;
}

.price-currency {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-secondary);
    vertical-align: top;
}

.price-value {
    font-size: 48px;
    font-weight: 800;
    color: var(--text-primary);
}

.price-period {
    font-size: 16px;
    color: var(--text-muted);
}

.pricing-features {
    list-style: none;
    flex: 1;
    margin-bottom: 32px;
}

.pricing-features li {
    font-size: 15px;
    color: var(--text-secondary);
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.pricing-features li:last-child {
    border-bottom: none;
}

/* ========================================
   CTA
   ======================================== */
.cta {
    padding: var(--section-padding);
    background: var(--gradient-card);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
}

.cta p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* ========================================
   关于
   ======================================== */
.about {
    padding: var(--section-padding);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-info .section-title {
    text-align: left;
}

.about-desc {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
}

.about-stats {
    display: flex;
    gap: 48px;
}

.about-stat {
    text-align: center;
}

.about-stat .stat-number {
    display: block;
    font-size: 36px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-stat .stat-label {
    font-size: 14px;
    color: var(--text-muted);
}

.about-visual {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.about-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    transition: var(--transition);
}

.about-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-4px);
}

.about-card-icon {
    font-size: 32px;
    margin-bottom: 16px;
}

.about-card h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.about-card p {
    font-size: 14px;
    color: var(--text-muted);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    padding: 80px 0 40px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 80px;
    margin-bottom: 48px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border-color: var(--border-hover);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.footer-column h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-column a {
    display: block;
    font-size: 14px;
    color: var(--text-muted);
    text-decoration: none;
    padding: 8px 0;
    transition: var(--transition);
}

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

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

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

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
    }
    
    .hero-content {
        max-width: 100%;
        text-align: center;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-visual {
        display: none;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .feature-card.featured {
        grid-column: span 2;
        grid-row: span 1;
    }
    
    .product-panel {
        grid-template-columns: 1fr;
    }
    
    .product-visual {
        order: -1;
    }
    
    .pricing-cards {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .pricing-card.featured:hover {
        transform: translateY(-4px);
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links, .nav-actions {
        display: none;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-card.featured {
        grid-column: span 1;
    }
    
    .products-tabs {
        flex-wrap: wrap;
    }
    
    .about-stats {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }
    
    .stat-divider {
        display: none;
    }
    
    .brands-list {
        gap: 24px;
    }
    
    .brand-item {
        font-size: 14px;
    }
}
/* ========================================
   页面标题区域（通用）
   ======================================== */
.page-hero {
    position: relative;
    padding: 160px 0 80px;
    text-align: center;
    overflow: hidden;
}

.page-hero .hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.page-title {
    position: relative;
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
    z-index: 1;
}

.page-desc {
    position: relative;
    font-size: 18px;
    color: var(--text-secondary);
    z-index: 1;
}

/* ========================================
   产品详情页
   ======================================== */
.products-section {
    padding: var(--section-padding);
}

.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 100px;
}

.product-detail.reverse {
    direction: rtl;
}

.product-detail.reverse > * {
    direction: ltr;
}

.product-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--gradient-card);
    border: 1px solid var(--primary);
    border-radius: var(--radius-xl);
    font-size: 13px;
    color: var(--primary-light);
    margin-bottom: 16px;
}

.product-detail h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
}

.product-intro {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.product-features-list {
    margin-bottom: 32px;
}

.product-features-list .feature-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 20px;
}

.product-features-list .feature-icon {
    font-size: 24px;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.product-features-list h4 {
    font-size: 16px;
    margin-bottom: 4px;
}

.product-features-list p {
    font-size: 14px;
    color: var(--text-muted);
}

.product-cta {
    display: flex;
    gap: 16px;
}

.product-card-demo {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
}

.product-card-demo .demo-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    font-size: 14px;
    color: var(--text-secondary);
}

.live-badge {
    padding: 4px 10px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    font-size: 12px;
    color: white;
}

.score-display {
    text-align: center;
    margin-bottom: 24px;
}

.big-score {
    font-size: 56px;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.score-max {
    font-size: 20px;
    color: var(--text-muted);
}

.platforms-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.platform-row {
    display: grid;
    grid-template-columns: 80px 1fr 40px;
    align-items: center;
    gap: 12px;
    font-size: 14px;
}

.bar-container {
    height: 8px;
    background: var(--bg-primary);
    border-radius: 4px;
    overflow: hidden;
}

.bar-container .bar {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
}

/* ========================================
   解决方案页
   ======================================== */
.solutions-section {
    padding: var(--section-padding);
}

.solution-card {
    display: flex;
    gap: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    margin-bottom: 32px;
}

.solution-card.reverse {
    flex-direction: row-reverse;
}

.solution-icon {
    font-size: 48px;
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    flex-shrink: 0;
}

.solution-tag {
    font-size: 12px;
    color: var(--primary-light);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
    display: block;
}

.solution-card h2 {
    font-size: 28px;
    margin-bottom: 12px;
}

.solution-card > .solution-content > p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.solution-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.solution-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--text-secondary);
}

.solution-feature .check {
    color: var(--primary);
    font-weight: 600;
}

/* ========================================
   客户见证
   ======================================== */
.testimonials {
    padding: var(--section-padding);
    background: var(--bg-secondary);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.testimonial-content p {
    font-size: 16px;
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: 24px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.author-info .name {
    display: block;
    font-weight: 600;
}

.author-info .title {
    font-size: 13px;
    color: var(--text-muted);
}

/* ========================================
   定价页
   ======================================== */
.pricing-section {
    padding: var(--section-padding);
}

.billing-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
}

.toggle {
    position: relative;
    width: 56px;
    height: 28px;
}

.toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-tertiary);
    border-radius: 28px;
    transition: var(--transition);
}

.slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    background: white;
    border-radius: 50%;
    transition: var(--transition);
}

input:checked + .slider {
    background: var(--primary);
}

input:checked + .slider:before {
    transform: translateX(28px);
}

.save-badge {
    padding: 4px 8px;
    background: #10B981;
    border-radius: var(--radius-xl);
    font-size: 12px;
    color: white;
}

.pricing-comparison {
    margin-top: 80px;
}

.pricing-comparison h2 {
    text-align: center;
    margin-bottom: 32px;
}

.comparison-table {
    overflow-x: auto;
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
}

.comparison-table th,
.comparison-table td {
    padding: 16px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
    font-weight: 600;
    color: var(--text-secondary);
}

.comparison-table td:first-child {
    text-align: left;
    color: var(--text-secondary);
}

.comparison-table .yes {
    color: #10B981;
}

.comparison-table .no {
    color: var(--text-muted);
}

/* FAQ */
.faq-section {
    padding: var(--section-padding);
    background: var(--bg-secondary);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
}

.faq-item h3 {
    font-size: 16px;
    margin-bottom: 12px;
}

.faq-item p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ========================================
   关于我们页
   ======================================== */
.about-intro {
    padding: var(--section-padding);
}

.about-intro-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-intro h2 {
    font-size: 36px;
    margin-bottom: 24px;
}

.about-intro p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

.mission-vision {
    padding: var(--section-padding);
    background: var(--bg-secondary);
}

.mv-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.mv-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    text-align: center;
}

.mv-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.mv-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

.mv-card p {
    font-size: 14px;
    color: var(--text-secondary);
}

.team-section {
    padding: var(--section-padding);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.team-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
}

.team-avatar {
    width: 80px;
    height: 80px;
    margin: 0 auto 16px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 600;
}

.team-card h4 {
    font-size: 18px;
    margin-bottom: 4px;
}

.team-title {
    font-size: 14px;
    color: var(--primary-light);
    display: block;
    margin-bottom: 12px;
}

.team-card p {
    font-size: 14px;
    color: var(--text-muted);
}

.stats-section {
    padding: 60px 0;
    background: var(--gradient-card);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center;
}

.stat-box .stat-number {
    display: block;
    font-size: 48px;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-box .stat-label {
    font-size: 14px;
    color: var(--text-muted);
}

.timeline-section {
    padding: var(--section-padding);
}

.timeline {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    padding-bottom: 40px;
    text-align: center;
}

.timeline-dot {
    width: 16px;
    height: 16px;
    background: var(--primary);
    border-radius: 50%;
    margin: 0 auto 16px;
    position: relative;
    z-index: 1;
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    max-width: 300px;
    margin: 0 auto;
}

.timeline-date {
    font-size: 12px;
    color: var(--primary-light);
    display: block;
    margin-bottom: 8px;
}

.timeline-content h4 {
    font-size: 16px;
    margin-bottom: 8px;
}

.timeline-content p {
    font-size: 14px;
    color: var(--text-muted);
}

.partners-section {
    padding: var(--section-padding);
    background: var(--bg-secondary);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 24px;
    text-align: center;
}

.partner-logo {
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    color: var(--text-muted);
}

/* ========================================
   联系我们页
   ======================================== */
.contact-section {
    padding: var(--section-padding);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.contact-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
}

.contact-icon {
    font-size: 32px;
    margin-bottom: 16px;
}

.contact-card h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.contact-card p {
    font-size: 16px;
    color: var(--primary-light);
    margin-bottom: 8px;
}

.contact-desc {
    font-size: 13px;
    color: var(--text-muted);
}

.contact-form-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.contact-form-wrapper h2 {
    font-size: 24px;
    margin-bottom: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group textarea {
    resize: vertical;
}

.map-section {
    padding-bottom: var(--section-padding);
}

.map-placeholder {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 80px;
    text-align: center;
}

.map-placeholder span {
    font-size: 48px;
    display: block;
    margin-bottom: 16px;
}

.map-placeholder p {
    color: var(--text-secondary);
}

/* ========================================
   博客页
   ======================================== */
.blog-section {
    padding: var(--section-padding);
}

.blog-categories {
    display: flex;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.category-tag {
    padding: 8px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.category-tag:hover,
.category-tag.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
}

.featured-article {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-bottom: 40px;
}

.featured-image .image-placeholder {
    width: 100%;
    height: 250px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
}

.featured-content .article-tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--gradient-card);
    border-radius: var(--radius-xl);
    font-size: 12px;
    color: var(--primary-light);
    margin-bottom: 16px;
}

.featured-content h2 {
    font-size: 24px;
    margin-bottom: 12px;
}

.featured-content p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.article-meta {
    display: flex;
    gap: 16px;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.article-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.article-image .image-placeholder {
    height: 160px;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
}

.article-content {
    padding: 24px;
}

.article-content h3 {
    font-size: 16px;
    margin-bottom: 8px;
    line-height: 1.4;
}

.article-content p {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 48px;
}

.page-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.page-btn:hover,
.page-btn.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
}

.newsletter {
    padding: var(--section-padding);
    background: var(--bg-secondary);
}

.newsletter-content {
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
}

.newsletter h2 {
    margin-bottom: 12px;
}

.newsletter p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.newsletter-form {
    display: flex;
    gap: 12px;
}

.newsletter-form input {
    flex: 1;
    padding: 14px 20px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-size: 14px;
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--primary);
}

/* 响应式 */
@media (max-width: 1024px) {
    .product-detail,
    .solution-card,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .solution-card.reverse {
        flex-direction: column;
    }
    
    .testimonials-grid,
    .team-grid,
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .page-title {
        font-size: 32px;
    }
    
    .testimonials-grid,
    .team-grid,
    .mv-grid,
    .partners-grid,
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .featured-article {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .contact-cards {
        grid-template-columns: 1fr;
    }
    
    .solution-features {
        grid-template-columns: 1fr;
    }
}