/* 全局样式和CSS变量 */
:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #8b5cf6;
    --accent-color: #a78bfa;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --bg-white: #ffffff;
    --bg-light: #f9fafb;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(99, 102, 241, 0.15);
    --shadow-xl: 0 20px 40px rgba(99, 102, 241, 0.2);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-attachment: fixed;
    min-height: 100vh;
    color: var(--text-primary);
    overflow-x: hidden;
    position: relative;
}

/* 动态背景动画 */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.floating-shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    animation: float 20s infinite ease-in-out;
}

.shape-1 {
    width: 300px;
    height: 300px;
    top: -100px;
    left: -100px;
    animation-delay: 0s;
}

.shape-2 {
    width: 200px;
    height: 200px;
    top: 50%;
    right: -50px;
    animation-delay: 2s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    bottom: 20%;
    left: 10%;
    animation-delay: 4s;
}

.shape-4 {
    width: 250px;
    height: 250px;
    top: 20%;
    right: 20%;
    animation-delay: 6s;
}

.shape-5 {
    width: 180px;
    height: 180px;
    bottom: -50px;
    right: 10%;
    animation-delay: 8s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
        opacity: 0.3;
    }
    25% {
        transform: translate(30px, -30px) rotate(90deg);
        opacity: 0.5;
    }
    50% {
        transform: translate(-20px, 20px) rotate(180deg);
        opacity: 0.4;
    }
    75% {
        transform: translate(20px, 30px) rotate(270deg);
        opacity: 0.6;
    }
}

/* 导航栏 */
.navbar {
    position: relative;
    z-index: 100;
    padding: 1.5rem 2rem;
    backdrop-filter: blur(20px);
    background: rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

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

.logo-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    box-shadow: var(--shadow-md);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: var(--shadow-md);
    }
    50% {
        transform: scale(1.05);
        box-shadow: var(--shadow-lg);
    }
}

.logo-text h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.125rem;
}

.logo-text p {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.8);
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
    font-size: 0.9rem;
}

.nav-link::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.nav-link:hover::before {
    opacity: 1;
}

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

.nav-link i {
    font-size: 1.1rem;
}

/* 主要内容 */
.main-content {
    position: relative;
    z-index: 10;
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

/* Hero区域 */
.hero-section {
    text-align: center;
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease-out;
}

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

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1.25rem;
    border-radius: 50px;
    color: white;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: slideInDown 0.6s ease-out;
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.badge i {
    color: #fbbf24;
}

.main-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.title-gradient {
    background: linear-gradient(135deg, #ffffff 0%, #e0e7ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 4px 20px rgba(255, 255, 255, 0.3);
}

.description {
    font-size: 1.125rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.95);
    max-width: 800px;
    margin: 0 auto;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* 特性框 */
.feature-box {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 2rem;
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 3rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.feature-box:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    background: rgba(255, 255, 255, 0.2);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-1);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.75rem;
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
}

.feature-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.75rem;
}

.feature-content p {
    font-size: 1rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.9);
}

/* CTA按钮区域 */
.cta-section {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-bottom: 4rem;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.cta-button {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
    font-weight: 600;
    border: none;
    border-radius: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    overflow: hidden;
    min-width: 200px;
    justify-content: center;
}

.cta-button.primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: var(--shadow-lg);
}

.cta-button.primary:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: var(--shadow-xl);
}

.cta-button.secondary {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.cta-button.secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-5px) scale(1.05);
    border-color: rgba(255, 255, 255, 0.5);
}

.button-shine {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.cta-button:hover .button-shine {
    left: 100%;
}

.cta-button i {
    font-size: 1.25rem;
}

/* 统计卡片 */
.stats-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.stat-card {
    position: relative;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 2.5rem 2rem;
    text-align: center;
    box-shadow: var(--shadow-lg);
    transition: all 0.4s ease;
    border: 1px solid rgba(255, 255, 255, 0.5);
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-1);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

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

.stat-card:hover {
    transform: translateY(-10px) scale(1.03);
    box-shadow: var(--shadow-xl);
}

.card-glow {
    position: absolute;
    inset: -2px;
    background: var(--gradient-1);
    border-radius: 20px;
    opacity: 0;
    filter: blur(10px);
    transition: opacity 0.4s ease;
    z-index: -1;
}

.stat-card:hover .card-glow {
    opacity: 0.5;
}

.stat-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    background: var(--gradient-1);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.stat-card:hover .stat-icon {
    transform: rotate(360deg) scale(1.1);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* 粒子画布 */
#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar {
        padding: 1rem 1.5rem;
    }

    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }

    .logo-section {
        width: 100%;
        justify-content: center;
    }

    .logo-text h3 {
        font-size: 1.1rem;
    }

    .logo-text p {
        font-size: 0.7rem;
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.75rem;
        width: 100%;
    }

    .nav-link {
        font-size: 0.85rem;
        padding: 0.4rem 0.8rem;
    }

    .nav-link span {
        display: inline;
    }

    .main-content {
        padding: 2rem 1rem;
    }

    .main-title {
        font-size: 2rem;
        line-height: 1.3;
    }

    .description {
        font-size: 1rem;
        padding: 0 0.5rem;
    }

    .cta-section {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }

    .cta-button {
        width: 100%;
        padding: 1rem 1.5rem;
        font-size: 1rem;
    }

    .feature-box {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
    }

    .feature-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
        margin: 0 auto 1rem;
    }

    .feature-content h3 {
        font-size: 1.25rem;
    }

    .feature-content p {
        font-size: 0.95rem;
    }

    .stats-section {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .stat-card {
        padding: 1.5rem 1rem;
    }

    .stat-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .stat-label {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .navbar {
        padding: 0.75rem 1rem;
    }

    .logo-icon {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
    }

    .logo-text h3 {
        font-size: 1rem;
    }

    .logo-text p {
        font-size: 0.65rem;
    }

    .nav-links {
        gap: 0.5rem;
    }

    .nav-link {
        font-size: 0.8rem;
        padding: 0.35rem 0.7rem;
    }

    .nav-link i {
        font-size: 1rem;
    }

    .main-content {
        padding: 1.5rem 0.75rem;
    }

    .main-title {
        font-size: 1.75rem;
        margin-bottom: 1rem;
    }

    .description {
        font-size: 0.95rem;
        line-height: 1.6;
    }

    .badge {
        font-size: 0.8rem;
        padding: 0.4rem 1rem;
    }

    .stats-section {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .stat-card {
        padding: 1.5rem;
    }

    .stat-number {
        font-size: 1.75rem;
    }

    .feature-box {
        padding: 1.25rem;
    }

    .feature-content h3 {
        font-size: 1.1rem;
    }

    .feature-content p {
        font-size: 0.9rem;
    }
}

@media (max-width: 360px) {
    .main-title {
        font-size: 1.5rem;
    }

    .description {
        font-size: 0.9rem;
    }

    .cta-button {
        font-size: 0.95rem;
        padding: 0.9rem 1.25rem;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-1);
    border-radius: 5px;
}

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