/* 微风浏览器官网样式 */
:root {
    /* 主色调 - 清新蓝绿色系 */
    --primary-color: #87CEEB;
    --primary-dark: #4682B4;
    --primary-light: #B0E0E6;
    
    /* 辅助色 - 薄荷绿色系 */
    --secondary-color: #98FB98;
    --secondary-dark: #90EE90;
    --secondary-light: #F0FFF0;
    
    /* 中性色 - 增强对比度确保文字清晰 */
    --text-dark: #1a252f;
    --text-primary: #2c3e50;
    --text-secondary: #34495e;
    --text-light: #5a6c7d;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-color: #e9ecef;
    
    /* 主色调定义 */
    --primary: var(--primary-color);
    --primary-light: var(--primary-light);
    
    /* 品牌特色色彩 */
    --breeze-blue: #87CEEB;
    --mint-green: #98FF98;
    --ocean-blue: #4682B4;
    --sky-blue: #B0E0E6;
    --leaf-green: #90EE90;
    --wind-white: #F0F8FF;
    --cloud-gray: #F5F5F5;
    
    /* 渐变色 */
    --gradient-primary: linear-gradient(135deg, #87CEEB, #4682B4);
    --gradient-secondary: linear-gradient(135deg, #98FB98, #90EE90);
    --gradient-breeze: linear-gradient(135deg, var(--breeze-blue), var(--mint-green));
    --gradient-ocean: linear-gradient(135deg, var(--ocean-blue), #6495ED);
    --gradient-sky: linear-gradient(135deg, var(--sky-blue), var(--wind-white));
    --gradient-leaf: linear-gradient(135deg, var(--leaf-green), var(--secondary-light));
    --accent-gradient: linear-gradient(135deg, #FFD700, #FFA500);
    
    /* 阴影 */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
    
    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* 动画时间 */
    --animation-fast: 0.2s;
    --animation-normal: 0.3s;
    --animation-slow: 0.6s;
    --animation-slower: 1s;
    
    /* 过渡效果 */
    --transition: all 0.3s ease;
    --section-spacing: 80px;
}

/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

/* 通用emoji字体支持 */
.emoji, 
.logo-icon, 
.logo-large, 
.breeze-animation, 
.symbol-emoji,
.feature-icon,
.platform-icon {
    font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", "EmojiSymbols", sans-serif;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    font-weight: bold;
    font-size: 1.5rem;
    text-decoration: none;
    color: var(--text-dark);
}

.logo-icon {
    font-size: 2rem;
    margin-right: var(--spacing-xs);
    animation: breeze 3s ease-in-out infinite;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

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

/* 英雄区域 */
.hero {
    padding: calc(70px + var(--spacing-xl)) 0 var(--spacing-xl);
    background: var(--gradient-sky);
    position: relative;
    overflow: hidden;
    min-height: 90vh;
    display: flex;
    align-items: center;
    width: 100%;
    left: 0;
    right: 0;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(135, 206, 235, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(152, 255, 152, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(70, 130, 180, 0.05) 0%, transparent 50%);
    animation: floatingBubbles 20s ease-in-out infinite;
}

@keyframes floatingBubbles {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(20px, -30px) scale(1.05);
    }
    50% {
        transform: translate(-15px, 20px) scale(0.95);
    }
    75% {
        transform: translate(30px, 10px) scale(1.02);
    }
}

.hero::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(
        from 0deg at 50% 50%,
        transparent 0deg,
        rgba(135, 206, 235, 0.03) 60deg,
        transparent 120deg,
        rgba(152, 255, 152, 0.03) 180deg,
        transparent 240deg,
        rgba(70, 130, 180, 0.03) 300deg,
        transparent 360deg
    );
    animation: rotate 30s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    text-align: left;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: bold;
    margin-bottom: var(--spacing-xs);
    line-height: 1.2;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--gradient-ocean);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: titleGlow 3s ease-in-out infinite alternate;
}

@keyframes titleGlow {
    0% {
        filter: brightness(1);
    }
    100% {
        filter: brightness(1.2);
    }
}

.logo-large {
    font-size: 4rem;
    animation: breeze 3s ease-in-out infinite;
    -webkit-text-fill-color: initial;
    background: none;
    color: #4CAF50;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease-out 0.3s both;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background: transparent;
    color: var(--primary-dark);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
}

.btn-download {
    background: var(--gradient-secondary);
    color: var(--text-dark);
    width: 100%;
    margin-top: var(--spacing-sm);
    border: 2px solid var(--primary-color);
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-dark);
}

/* 浏览器模型 */
.browser-mockup {
    perspective: 1000px;
}

.browser-window {
    background: white;
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    transform: rotateY(-5deg);
    transition: transform 0.3s ease;
}

.browser-window:hover {
    transform: rotateY(0deg);
}

.browser-header {
    background: var(--text-dark);
    padding: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.window-controls {
    display: flex;
    gap: 6px;
}

.control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.control.red { background: #ff5f57; }
.control.yellow { background: #ffbd2e; }
.control.green { background: #28ca42; }

.address-bar {
    flex: 1;
    background: var(--bg-light);
    border-radius: 15px;
    padding: 6px 12px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.lock-icon {
    font-size: 0.9rem;
}

.url {
    font-size: 0.9rem;
    color: var(--text-dark);
}

.browser-content {
    padding: var(--spacing-lg);
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.content-placeholder {
    text-align: center;
}

.breeze-animation {
    font-size: 4rem;
    animation: breeze 2s ease-in-out infinite;
    margin-bottom: var(--spacing-sm);
}

/* 特色功能区域 */
.features {
    padding: var(--section-spacing) 0;
    background: linear-gradient(135deg, var(--wind-white) 0%, #ffffff 100%);
    position: relative;
    width: 100%;
    left: 0;
    right: 0;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-breeze);
    opacity: 0.3;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
    color: var(--text-dark);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(135, 206, 235, 0.1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-breeze);
    transform: scaleX(0);
    transition: transform var(--animation-normal);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(135, 206, 235, 0.05) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--animation-normal);
    pointer-events: none;
}

.feature-card:hover::after {
    opacity: 1;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(135, 206, 235, 0.15);
    border-color: rgba(135, 206, 235, 0.3);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: var(--gradient-breeze);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    position: relative;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 10px 30px rgba(135, 206, 235, 0.3);
}

.feature-icon::before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    background: var(--gradient-breeze);
    border-radius: 50%;
    z-index: -1;
    opacity: 0.3;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.3;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.1;
    }
}

.feature-card h3 {
    font-size: 1.4rem;
    margin-bottom: 16px;
    color: var(--text-primary);
    font-weight: 600;
    transition: color var(--animation-normal);
}

.feature-card:hover h3 {
    color: var(--primary);
}

.feature-card p {
    color: var(--text-dark);
    line-height: 1.6;
    margin-bottom: 20px;
}

/* 体验符号区域 */
.experience-symbols {
    padding: 60px 0;
    background: linear-gradient(135deg, #ffffff 0%, var(--wind-white) 100%);
    border-top: 1px solid rgba(135, 206, 235, 0.1);
    border-bottom: 1px solid rgba(135, 206, 235, 0.1);
    position: relative;
    overflow: hidden;
    width: 100%;
    left: 0;
    right: 0;
}

.experience-symbols::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(135, 206, 235, 0.05), transparent);
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

.symbols-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 50px auto 0;
}

.symbol-item {
    text-align: center;
    padding: 40px 30px;
    background: white;
    border-radius: 20px;
    border: 1px solid rgba(135, 206, 235, 0.1);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.symbol-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-breeze);
    transform: scaleX(0);
    transition: transform var(--animation-normal);
}

.symbol-item:hover::before {
    transform: scaleX(1);
}

.symbol-item::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(135, 206, 235, 0.05) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--animation-normal);
    pointer-events: none;
}

.symbol-item:hover::after {
    opacity: 1;
}

.symbol-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(135, 206, 235, 0.15);
    border-color: rgba(135, 206, 235, 0.3);
}

.symbol-emoji {
    font-size: 3rem;
    margin-bottom: 24px;
    display: block;
    transition: transform var(--animation-normal);
    position: relative;
    z-index: 2;
}

.symbol-item:hover .symbol-emoji {
    transform: scale(1.1) rotate(5deg);
}

.symbol-name {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    position: relative;
    z-index: 2;
    transition: color var(--animation-normal);
}

.symbol-item:hover .symbol-name {
    color: var(--primary-color);
}

.symbol-description {
    font-size: 1rem;
    color: var(--text-dark);
    line-height: 1.6;
    position: relative;
    z-index: 2;
    margin-bottom: 20px;
}

/* 下载区域 */
.download {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--secondary-light) 100%);
    width: 100%;
    left: 0;
    right: 0;
}

.download-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-lg);
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.download-card {
    background: rgba(255, 255, 255, 0.95);
    padding: var(--spacing-lg);
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(135, 206, 235, 0.2);
}

.download-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.platform-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.download-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
    color: var(--text-dark);
}

.platform-version {
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

.download-info {
    margin-top: var(--spacing-sm);
    font-size: 0.9rem;
    color: var(--text-dark);
}

.download-notice {
    text-align: center;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.8);
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
}

.download-notice code {
    background: var(--bg-light);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
}

/* 常见问题样式 */
.faq {
    padding: var(--section-spacing) 0 calc(var(--section-spacing) + 80px);
    background: linear-gradient(135deg, var(--bg-light) 0%, #ffffff 100%);
    width: 100%;
    left: 0;
    right: 0;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: 12px;
    margin-bottom: 16px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.faq-question {
    padding: 24px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background: var(--bg-light);
}

.faq-question h4 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
}

.faq-toggle {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: bold;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    background: var(--bg-light);
}

.faq-item.active .faq-answer {
    max-height: 2000px;
    padding: 24px;
    border-top: 1px solid #e9ecef;
    overflow-y: auto;
}

.faq-answer p {
    margin: 0 0 16px 0;
    color: var(--text-dark);
    line-height: 1.6;
}

.faq-answer ul,
.faq-answer ol {
    margin: 0;
    padding-left: 20px;
}

.faq-answer li {
    margin-bottom: 8px;
    color: var(--text-dark);
    line-height: 1.5;
}

/* 更新日志样式 */
.changelog {
    padding: var(--section-spacing) 0;
    background: white;
    width: 100%;
    left: 0;
    right: 0;
}

.changelog-container {
    max-width: 900px;
    margin: 0 auto;
}

.changelog-item {
    background: var(--bg-light);
    border-radius: 16px;
    padding: 32px;
    margin-bottom: 24px;
    border-left: 4px solid var(--primary-color);
    transition: all 0.3s ease;
}

.changelog-item:hover {
    transform: translateX(8px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.changelog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.changelog-header h3 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.4rem;
    font-weight: 700;
}

.changelog-date {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: normal;
}

.changelog-type {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

.changelog-type.minor {
    background: linear-gradient(135deg, #fff3cd, #ffeaa7);
    color: #856404;
}

.changelog-type.major {
    background: linear-gradient(135deg, #d1ecf1, #74b9ff);
    color: #0c5460;
}

.changelog-content ul {
    margin: 0;
    padding-left: 0;
    list-style: none;
}

.changelog-content li {
    padding: 12px 0;
    border-bottom: 1px solid #e9ecef;
    color: var(--text-dark);
    line-height: 1.6;
    display: flex;
    align-items: flex-start;
}

.changelog-content li:last-child {
    border-bottom: none;
}

.changelog-content li::before {
    content: '';
    margin-right: 12px;
    font-size: 1.1rem;
}

/* 确保更新日志内容可见 */
.changelog-content {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.changelog-content ul {
    display: block !important;
    visibility: visible !important;
}

.changelog-content li {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
    color: #333 !important;
    font-size: 1rem !important;
    line-height: 1.6 !important;
}

/* 品牌口号区域 */
.brand-slogan {
    padding: 80px 0;
    background: linear-gradient(135deg, #4682B4 0%, #6495ED 100%);
    position: relative;
    overflow: hidden;
    width: 100%;
    left: 0;
    right: 0;
}

.brand-slogan::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.2"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.2"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.25"/><circle cx="10" cy="50" r="0.5" fill="white" opacity="0.25"/><circle cx="90" cy="30" r="0.5" fill="white" opacity="0.25"/><circle cx="30" cy="90" r="0.5" fill="white" opacity="0.25"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.5;
}

.brand-slogan .container {
    position: relative;
    z-index: 1;
}

.brand-slogan .section-title {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.slogan-table {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    max-width: 1200px;
    margin: 0 auto;
}

.slogan-item {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.slogan-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s;
}

.slogan-item:hover::before {
    left: 100%;
}

.slogan-item:hover {
    transform: translateY(-5px) scale(1.02);
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.slogan-type {
    display: inline-block;
    background: var(--accent-gradient);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.slogan-text {
    color: white;
    font-size: 1.1rem;
    line-height: 1.6;
    font-weight: 500;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
    position: relative;
    z-index: 1;
}

/* 品牌口号动画效果 */
@keyframes sloganFadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slogan-item {
    animation: sloganFadeIn 0.8s ease-out forwards;
    opacity: 0;
}

.slogan-item:nth-child(1) { animation-delay: 0.1s; }
.slogan-item:nth-child(2) { animation-delay: 0.2s; }
.slogan-item:nth-child(3) { animation-delay: 0.3s; }
.slogan-item:nth-child(4) { animation-delay: 0.4s; }

/* 响应式设计 */
@media (max-width: 768px) {
    .brand-slogan {
        padding: 60px 0;
    }
    
    .brand-slogan .section-title {
        font-size: 2rem;
    }
    
    .slogan-table {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .slogan-item {
        padding: 25px;
    }
    
    .slogan-text {
        font-size: 1rem;
    }
}

/* 关于区域 */
.about {
    padding: var(--spacing-xl) 0;
    background: var(--bg-white);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.about-text h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
    margin-top: var(--spacing-md);
}

.about-text p {
    color: var(--text-dark);
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.stat {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--bg-light);
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
}

.stat-number {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    color: var(--text-dark);
    font-size: 0.9rem;
}

/* 页脚 */
.footer {
    background: var(--text-dark);
    color: white;
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.footer-section h4 {
    margin-bottom: var(--spacing-sm);
    color: var(--primary-light);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-section a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: bold;
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid #34495e;
    color: #95a5a6;
}

/* 使用指南样式 */
.guide {
    padding: var(--section-spacing) 0;
    background: linear-gradient(135deg, #ffffff 0%, var(--wind-white) 100%);
    width: 100%;
    left: 0;
    right: 0;
}

.guide-section {
    margin-bottom: var(--spacing-xl);
}

.guide-section h3 {
    font-size: 1.8rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    text-align: center;
    position: relative;
    padding-bottom: 15px;
}

.guide-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--gradient-breeze);
    border-radius: 2px;
}

/* 基础操作表格样式 */
.guide-table {
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(135, 206, 235, 0.1);
    overflow: hidden;
    border: 1px solid rgba(135, 206, 235, 0.1);
    transition: all 0.3s ease;
}

.guide-table:hover {
    box-shadow: 0 15px 40px rgba(135, 206, 235, 0.15);
    transform: translateY(-2px);
}

.guide-table table {
    width: 100%;
    border-collapse: collapse;
    margin: 0;
}

.guide-table thead {
    background: var(--gradient-breeze);
    color: white;
}

.guide-table th {
    padding: 20px 15px;
    text-align: left;
    font-weight: 600;
    font-size: 1.1rem;
    letter-spacing: 0.5px;
}

.guide-table tbody tr {
    border-bottom: 1px solid rgba(135, 206, 235, 0.1);
    transition: all 0.3s ease;
}

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

.guide-table tbody tr:hover {
    background: rgba(135, 206, 235, 0.05);
    transform: scale(1.01);
}

.guide-table td {
    padding: 18px 15px;
    color: var(--text-dark);
    font-size: 1rem;
    line-height: 1.5;
}

.guide-table td:first-child {
    font-weight: 600;
    color: var(--text-primary);
}

.guide-table code {
    background: var(--gradient-sky);
    color: var(--primary-dark);
    padding: 4px 8px;
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    font-weight: 600;
    border: 1px solid rgba(135, 206, 235, 0.2);
}

/* 高级功能卡片样式 */
.advanced-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: var(--spacing-lg);
}

.advanced-card {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 8px 25px rgba(135, 206, 235, 0.1);
    border: 1px solid rgba(135, 206, 235, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.advanced-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-breeze);
    transform: scaleX(0);
    transition: transform var(--animation-normal);
}

.advanced-card:hover::before {
    transform: scaleX(1);
}

.advanced-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(135, 206, 235, 0.05) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--animation-normal);
    pointer-events: none;
}

.advanced-card:hover::after {
    opacity: 1;
}

.advanced-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(135, 206, 235, 0.2);
    border-color: rgba(135, 206, 235, 0.3);
}

.advanced-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-breeze);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 20px;
    transition: all 0.3s ease;
    position: relative;
}

.advanced-card:hover .advanced-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 10px 25px rgba(135, 206, 235, 0.3);
}

.advanced-icon::before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    background: var(--gradient-breeze);
    border-radius: 50%;
    z-index: -1;
    opacity: 0.3;
    animation: pulse 2s ease-in-out infinite;
}

.advanced-card h4 {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 15px;
    font-weight: 600;
    transition: color var(--animation-normal);
}

.advanced-card:hover h4 {
    color: var(--primary-color);
}

.advanced-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.advanced-card li {
    padding: 10px 0;
    color: var(--text-dark);
    line-height: 1.6;
    border-bottom: 1px solid rgba(135, 206, 235, 0.05);
    position: relative;
    padding-left: 20px;
    transition: all 0.3s ease;
}

.advanced-card li:last-child {
    border-bottom: none;
}

.advanced-card li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    transition: transform 0.3s ease;
}

.advanced-card:hover li::before {
    transform: translateX(3px);
}

.advanced-card li strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .guide {
        padding: 60px 0;
    }
    
    .guide-section h3 {
        font-size: 1.5rem;
    }
    
    .guide-table {
        border-radius: 15px;
    }
    
    .guide-table th,
    .guide-table td {
        padding: 15px 10px;
        font-size: 0.9rem;
    }
    
    .advanced-features {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .advanced-card {
        padding: 25px 20px;
    }
    
    .advanced-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .guide-table th,
    .guide-table td {
        padding: 12px 8px;
        font-size: 0.85rem;
    }
    
    .advanced-card {
        padding: 20px 15px;
    }
    
    .advanced-card h4 {
        font-size: 1.2rem;
    }
    
    .advanced-card li {
        font-size: 0.9rem;
    }
}

/* 动画 */
@keyframes breeze {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    25% {
        transform: translateY(-5px) rotate(-2deg);
    }
    75% {
        transform: translateY(5px) rotate(2deg);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        height: auto;
        padding: var(--spacing-sm) 0;
    }
    
    .nav-menu {
        margin-top: var(--spacing-sm);
    }
    
    .hero {
        padding: calc(120px + var(--spacing-md)) 0 var(--spacing-lg);
        min-height: auto;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-lg);
    }
    
    .hero-content {
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
        justify-content: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .browser-window {
        transform: none;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        flex-direction: row;
        justify-content: space-around;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .download-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .container {
        padding: 0 var(--spacing-xs);
    }
}