/* ========================================
   Gamma官网 - 高端深色主题
   Premium Dark Theme | 响应式设计
======================================== */

/* Google Fonts - 高级字体 */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* CSS变量定义 - 深色高级主题 */
:root {
    /* 主色调 */
    --primary: #8b5cf6;
    --primary-light: #a78bfa;
    --primary-dark: #7c3aed;
    --accent: #06b6d4;
    --accent-light: #22d3ee;
    
    /* 渐变色 */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    --gradient-accent: linear-gradient(135deg, #06b6d4 0%, #8b5cf6 100%);
    --gradient-dark: linear-gradient(180deg, #0a0a0f 0%, #1a1a2e 50%, #16213e 100%);
    --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.02) 100%);
    --gradient-glow: radial-gradient(circle at 50% 50%, rgba(139, 92, 246, 0.15) 0%, transparent 50%);
    
    /* 文字颜色 */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    
    /* 背景色 */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a2e;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.08);
    
    /* 边框 */
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(139, 92, 246, 0.5);
    
    /* 阴影 */
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(139, 92, 246, 0.3);
    --shadow-glow-accent: 0 0 40px rgba(6, 182, 212, 0.3);
    
    /* 其他 */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.7;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 全局背景动效 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-glow);
    pointer-events: none;
    z-index: -1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

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

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

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo-img {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    border: 1px solid var(--border-color);
}

.logo-text {
    font-size: 1.6rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 8px 0;
    font-size: 0.95rem;
    letter-spacing: 0.01em;
}

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

.nav-links a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gradient-accent);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-links a:hover::before {
    width: 100%;
}

.cta-btn {
    background: var(--gradient-accent);
    color: var(--text-primary);
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.02em;
    box-shadow: var(--shadow-glow-accent);
    position: relative;
    overflow: hidden;
}

.cta-btn::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: var(--transition-slow);
}

.cta-btn:hover::before {
    left: 100%;
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 50px rgba(6, 182, 212, 0.5);
}

/* ========================================
   Hero区域 - 震撼视觉
======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 140px 24px 100px;
    position: relative;
    overflow: hidden;
    background: var(--gradient-dark);
}

/* 动态背景光效 */
.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(139, 92, 246, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 80% 20%, rgba(6, 182, 212, 0.12) 0%, transparent 40%),
        radial-gradient(circle at 40% 40%, rgba(240, 147, 251, 0.08) 0%, transparent 30%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(2%, 2%) rotate(1deg); }
    50% { transform: translate(-1%, 3%) rotate(-1deg); }
    75% { transform: translate(-2%, -1%) rotate(0.5deg); }
}

/* 网格背景 */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-content {
    text-align: center;
    max-width: 900px;
    position: relative;
    z-index: 1;
}

/* 装饰标签 */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    backdrop-filter: blur(10px);
}

.hero-badge .badge-dot {
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 28px;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,0.8) 50%, #a78bfa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 48px;
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-primary);
    padding: 18px 40px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.02em;
    box-shadow: var(--shadow-glow);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: var(--transition-slow);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 60px rgba(139, 92, 246, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    padding: 18px 40px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.02em;
    border: 1px solid var(--border-color);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary-light);
    transform: translateY(-3px);
}

/* 统计数据 */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 80px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ========================================
   通用Section样式
======================================== */
.section {
    padding: 120px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-tag {
    display: inline-block;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.section-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ========================================
   关于Gamma区块
======================================== */
.about-section {
    background: var(--bg-secondary);
    position: relative;
}

.about-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 28px;
    line-height: 1.9;
}

.about-text h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 48px 0 20px;
    position: relative;
    padding-left: 20px;
}

.about-text h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 24px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

/* ========================================
   功能介绍区块
======================================== */
.features-section {
    background: var(--bg-primary);
    position: relative;
}

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

.feature-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-glow);
    opacity: 0;
    transition: var(--transition);
}

.feature-card:hover {
    border-color: var(--border-glow);
    transform: translateY(-8px);
    box-shadow: var(--shadow-glow);
}

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

.feature-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-accent);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 28px;
    position: relative;
    z-index: 1;
}

.feature-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
}

.feature-card h4 {
    font-size: 0.9rem;
    color: var(--accent-light);
    font-weight: 500;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

/* ========================================
   产品服务区块
======================================== */
.products-section {
    background: var(--bg-secondary);
    position: relative;
}

.products-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

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

.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.product-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

.product-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-glow);
    transform: translateY(-10px);
}

.product-card:hover::after {
    transform: scaleX(1);
}

.product-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.product-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 14px;
}

.product-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========================================
   核心优势区块
======================================== */
.advantages-section {
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

/* 装饰光效 */
.advantages-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.08) 0%, transparent 60%);
    pointer-events: none;
}

.advantages-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.advantage-item {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    position: relative;
    transition: var(--transition);
}

.advantage-item::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 0;
    width: 4px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 0 4px 4px 0;
}

.advantage-item:hover {
    border-color: var(--border-glow);
    transform: translateX(8px);
}

.advantage-item h3 {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    padding-left: 20px;
}

.advantage-item h4 {
    font-size: 0.9rem;
    color: var(--accent-light);
    font-weight: 500;
    margin-bottom: 16px;
    padding-left: 20px;
}

.advantage-item p {
    color: var(--text-secondary);
    line-height: 1.8;
    padding-left: 20px;
}

/* ========================================
   用户评价区块
======================================== */
.users-section {
    background: var(--bg-secondary);
    position: relative;
}

.users-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 36px;
    position: relative;
    transition: var(--transition);
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 20px;
    left: 30px;
    font-size: 5rem;
    font-family: Georgia, serif;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.3;
    line-height: 1;
}

.testimonial-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-glow);
    transform: translateY(-8px);
}

.testimonial-card p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 28px;
    position: relative;
    z-index: 1;
    font-style: italic;
}

.testimonial-card footer {
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 1;
}

.testimonial-card cite {
    font-weight: 600;
    font-style: normal;
    color: var(--text-primary);
    font-size: 1rem;
}

.testimonial-card span {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ========================================
   行动号召区块
======================================== */
.cta-section {
    background: var(--bg-primary);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 30% 50%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 50%, rgba(6, 182, 212, 0.12) 0%, transparent 50%);
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.cta-section h2 {
    color: var(--text-primary);
    margin-bottom: 12px;
}

.cta-section h3 {
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--accent-light);
    margin-bottom: 24px;
}

.cta-section p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 40px;
    line-height: 1.8;
}

.btn-large {
    padding: 20px 50px;
    font-size: 1.1rem;
}

/* ========================================
   页脚
======================================== */
.footer {
    background: var(--bg-tertiary);
    padding: 80px 0 32px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 80px;
    margin-bottom: 60px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-logo {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.footer-brand-name {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-brand p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-column h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 24px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

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

.footer-column li {
    margin-bottom: 14px;
}

.footer-column a {
    color: var(--text-muted);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.footer-column a:hover {
    color: var(--accent-light);
}

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

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ========================================
   响应式设计
======================================== */
@media (max-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .nav-links {
        display: none;
    }
    
    .features-grid,
    .advantages-list {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-stats {
        gap: 40px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .section {
        padding: 80px 0;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 15px;
    }
    
    .nav-container {
        padding: 14px 16px;
    }
    
    .logo-img {
        width: 36px;
        height: 36px;
    }
    
    .logo-text {
        font-size: 1.4rem;
    }
    
    .cta-btn {
        padding: 10px 20px;
        font-size: 0.85rem;
    }
    
    .hero {
        padding: 120px 16px 80px;
    }
    
    .hero-badge {
        font-size: 0.8rem;
        padding: 6px 16px;
    }
    
    .hero-subtitle {
        font-size: 1.05rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 16px;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        max-width: 300px;
        justify-content: center;
        padding: 16px 32px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-header {
        margin-bottom: 50px;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-card,
    .product-card,
    .advantage-item,
    .testimonial-card {
        padding: 28px 24px;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .section h2 {
        font-size: 1.6rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .feature-icon {
        width: 56px;
        height: 56px;
        font-size: 1.5rem;
    }
}

/* ========================================
   滚动条美化
======================================== */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 5px;
    border: 2px solid var(--bg-secondary);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* 选中文字 */
::selection {
    background: rgba(139, 92, 246, 0.4);
    color: var(--text-primary);
}

/* ========================================
   动画定义
======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(139, 92, 246, 0.5);
    }
}