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

:root {
    --primary-color: #a855f7;
    --primary-dark: #9333ea;
    --secondary-color: #06b6d4;
    --accent-color: #f472b6;
    --text-dark: #f3f4f6;
    --text-light: #9ca3af;
    --bg-light: #1f2937;
    --bg-white: #111827;
    --gradient-1: linear-gradient(135deg, #a855f7 0%, #06b6d4 50%, #f472b6 100%);
    --gradient-2: linear-gradient(135deg, #a855f7 0%, #06b6d4 100%);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
    --glow: 0 0 20px rgba(168, 85, 247, 0.3);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    scroll-behavior: smooth;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(168, 85, 247, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 40% 80%, rgba(244, 114, 182, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

/* 导航栏 */
.navbar {
    background: rgba(17, 24, 39, 0.95);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(139, 92, 246, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

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

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

.nav-btn {
    padding: 0.5rem 1.5rem !important;
    background: var(--primary-color) !important;
    border-radius: 20px !important;
    transition: all 0.3s ease !important;
}

.nav-btn:hover {
    background: var(--primary-dark) !important;
    transform: scale(1.05);
}

/* 首屏区域 */
.hero {
    margin-top: 70px;
    padding: 120px 0 100px;
    background: var(--gradient-1);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 20%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
    pointer-events: none;
    transition: transform 0.1s ease-out;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: moveBackground 20s linear infinite;
}

@keyframes moveBackground {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-50px, -50px); }
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-content h2 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 800;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease;
}

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

.hero-content > p {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 30px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: fadeInUp 1s ease both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease 0.4s both;
}

.btn-icon {
    margin-right: 0.5rem;
}

.btn {
    padding: 0.875rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

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

.btn-primary:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 30px rgba(168, 85, 247, 0.5);
    background: var(--primary-dark);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.8);
    color: white;
    transform: translateY(-3px) scale(1.05);
}

.btn-large {
    padding: 1rem 3rem;
    font-size: 1.125rem;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
    animation: fadeInUp 1s ease 0.6s both;
}

.hero-trust {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease 0.5s both;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
    font-size: 0.875rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.trust-icon {
    color: #4ade80;
    font-weight: bold;
    font-size: 1rem;
}

.stat-item {
    background: rgba(255, 255, 255, 0.15);
    padding: 1.5rem;
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #fff 0%, rgba(255, 255, 255, 0.8) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.95;
    font-weight: 500;
}

/* 通用区块样式 */
section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.arrow {
    display: inline-block;
    transition: transform 0.3s ease;
}

.btn-large:hover .arrow {
    transform: translateX(5px);
}

/* 核心功能 */
.features {
    background: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-card {
    background: rgba(31, 41, 55, 0.8);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(139, 92, 246, 0.1);
    position: relative;
    overflow: hidden;
}

.feature-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(168, 85, 247, 0.1) 0%, transparent 50%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-1);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

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

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg), var(--glow);
    border-color: rgba(139, 92, 246, 0.3);
}

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    transition: transform 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
    font-weight: 600;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.7;
}

/* 下载区域 */
.download {
    background: var(--bg-light);
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.download-card {
    background: rgba(31, 41, 55, 0.8);
    padding: 2rem;
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-dark);
    transition: all 0.3s ease;
    text-align: center;
    border: 2px solid transparent;
}

.download-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.platform-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.download-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.download-card > p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.download-btn {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: var(--primary-color);
    color: white;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 600;
}

/* 多平台下载预览 */
.download-preview {
    background: var(--bg-light);
    position: relative;
    overflow: hidden;
}

.download-preview::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 30%, rgba(168, 85, 247, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(6, 182, 212, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.platform-icons {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
    position: relative;
    z-index: 1;
}

.platform-icon-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 2rem;
    background: rgba(31, 41, 55, 0.8);
    border-radius: 16px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    min-width: 100px;
}

.platform-icon-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(168, 85, 247, 0.3);
}

.p-icon {
    font-size: 3rem;
}

.platform-icon-card span:not(.p-icon) {
    color: var(--text-light);
    font-size: 0.875rem;
}

.preview-cta {
    text-align: center;
    position: relative;
    z-index: 1;
}

/* 用户评价 */
.reviews {
    background: var(--bg-white);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.review-card {
    background: rgba(31, 41, 55, 0.8);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(139, 92, 246, 0.1);
}

.review-avatar {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.review-content h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.review-stars {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.review-content p {
    color: var(--text-light);
    line-height: 1.6;
}

/* CTA区域 */
.cta-section {
    background: var(--gradient-1);
    color: white;
    text-align: center;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 70%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 30%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.cta-section > p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    position: relative;
    z-index: 1;
}

.cta-section .btn-primary {
    background: white;
    color: var(--primary-color);
    position: relative;
    z-index: 1;
}

/* 教程区域 */
.tutorials {
    background: var(--bg-light);
}

.tutorial-section {
    margin-bottom: 3rem;
    padding: 2rem;
    background: rgba(31, 41, 55, 0.8);
    border-radius: 12px;
    border: 1px solid rgba(139, 92, 246, 0.1);
}

.tutorial-section h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.tutorial-content {
    padding-left: 1rem;
}

.tutorial-content ol {
    padding-left: 1.5rem;
}

.tutorial-content ol li {
    margin-bottom: 0.75rem;
    line-height: 1.8;
}

.tutorial-content ul {
    padding-left: 1.5rem;
}

.tutorial-content ul li {
    margin-bottom: 0.5rem;
    line-height: 1.8;
}

.mode-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 1.5rem;
}

.mode-card {
    background: rgba(31, 41, 55, 0.8);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
    border: 1px solid rgba(139, 92, 246, 0.1);
}

.mode-card h4 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
}

.mode-card p {
    color: var(--text-light);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.mode-card ul {
    padding-left: 1.5rem;
}

.mode-card ul li {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.suggestion-content p {
    font-weight: 600;
    margin: 1rem 0 0.5rem;
    color: var(--text-dark);
}

.suggestion-content ul {
    background: rgba(31, 41, 55, 0.8);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid rgba(139, 92, 246, 0.1);
}

/* 页脚 */
.footer {
    background: #0a0f1a;
    color: white;
    padding: 60px 0 20px;
    border-top: 1px solid rgba(139, 92, 246, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.footer-section h4 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.footer-section p {
    opacity: 0.8;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-section ul li a:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(139, 92, 246, 0.1);
    opacity: 0.8;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero-content > p {
        font-size: 1.125rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .features-grid,
    .download-grid,
    .reviews-grid {
        grid-template-columns: 1fr;
    }
    
    .mode-cards {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .nav-menu {
        display: none;
    }
}

@media (max-width: 480px) {
    .stat-number {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 1.875rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}