:root {
    --primary-color: #6C63FF;
    --secondary-color: #2D2D2D;
    --accent-color: #FF6584;
    --text-color: #333333;
    --light-bg: #F8F9FA;
    --white: #FFFFFF;
    --dark-blue: #464995;
    --light-purple: #8A84FF;
    --gray: #6c757d;
    --success: #28a745;
}

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

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 1rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo i {
    font-size: 1.8rem;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.nav-links a i {
    font-size: 0.9rem;
}

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

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

.nav-links a:hover::after, .nav-links a.active::after {
    width: 100%;
}

.nav-links a.download-link {
    background: var(--primary-color);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    transition: background 0.3s, transform 0.3s;
}

.nav-links a.download-link:hover {
    background: var(--dark-blue);
    transform: translateY(-2px);
}

.nav-links a.download-link::after {
    display: none;
}

.auth-container {
    display: flex;
    gap: 1rem;
}

.menu-btn, .close-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-color);
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        justify-content: center;
        gap: 2rem;
        transition: right 0.3s;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    }

    .nav-links.active {
        right: 0;
    }

    .menu-btn, .close-btn {
        display: block;
    }

    .close-btn {
        position: absolute;
        top: 1rem;
        right: 1rem;
    }

    .nav-container {
        padding: 0 1rem;
    }
}

/* 英雄区域样式 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8rem 2rem 6rem;
    background: linear-gradient(135deg, var(--light-bg) 0%, var(--white) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -10%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(var(--light-purple), transparent 70%);
    opacity: 0.1;
    border-radius: 50%;
    z-index: 0;
}

.hero-content {
    flex: 1;
    max-width: 600px;
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero h1 .highlight {
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: block;
    font-size: 0.8em;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: var(--secondary-color);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.cta-button {
    padding: 1rem 2rem;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
    font-weight: 600;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(108, 99, 255, 0.2);
}

.secondary-button {
    padding: 1rem 2rem;
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    border-radius: 50px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: background 0.3s, color 0.3s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

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

.hero-stats {
    display: flex;
    gap: 2rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

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

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    position: relative;
}

.floating-badges {
    position: absolute;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    right: -20px;
    top: 30px;
}

.badge {
    background: var(--white);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    animation: float 3s ease-in-out infinite;
}

.badge:nth-child(2) {
    animation-delay: 1.5s;
}

@keyframes float {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0);
    }
}

/* 通用布局元素 */
main {
    overflow-x: hidden;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--primary-color);
}

.section-header p {
    font-size: 1.1rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

/* 特色区域样式 */
.features {
    padding: 6rem 2rem;
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    padding: 2.5rem 2rem;
    background: var(--light-bg);
    border-radius: 15px;
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    margin-bottom: 1.5rem;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon i {
    font-size: 1.8rem;
    color: var(--white);
}

.feature-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.feature-content p {
    color: var(--gray);
    line-height: 1.6;
}

/* 画廊样式 */
.gallery {
    padding: 6rem 2rem;
    background: var(--light-bg);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.gallery-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.gallery-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: transform 0.5s;
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    padding: 1.5rem;
    color: var(--white);
    transform: translateY(100%);
    transition: transform 0.5s;
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-overlay h4 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.gallery-overlay p {
    font-size: 0.9rem;
    opacity: 0.9;
}

.gallery-actions {
    display: flex;
    justify-content: center;
    margin-top: 3rem;
}

.view-more-btn {
    padding: 0.8rem 2rem;
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    border-radius: 50px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.3s, color 0.3s;
    font-weight: 600;
}

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

/* 下载区域样式 */
.download {
    padding: 6rem 2rem;
    background: var(--white);
}

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

.download-info {
    flex: 1;
    max-width: 600px;
}

.download-features {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.download-feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.download-feature i {
    color: var(--success);
    font-size: 1.2rem;
}

.download-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.download-btn {
    padding: 1rem 2rem;
    background: var(--secondary-color);
    color: var(--white);
    border: none;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
    transition: transform 0.3s, background 0.3s;
}

.download-btn i {
    font-size: 2rem;
}

.download-btn div {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
}

.download-btn small {
    font-size: 0.7rem;
    opacity: 0.8;
}

.download-btn span {
    font-size: 1.1rem;
    font-weight: 600;
}

.download-btn:hover {
    transform: translateY(-5px);
    background: var(--primary-color);
}

.download-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.download-image img {
    max-width: 80%;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* 底部区域样式 */
.footer {
    background: var(--secondary-color);
    color: var(--white);
    padding: 4rem 2rem 1rem;
    position: relative;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
    margin-bottom: 2rem;
}

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

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--primary-color);
}

.footer-section p {
    line-height: 1.6;
    margin-bottom: 1rem;
}

.contact p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

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

.footer-section.links ul li {
    margin-bottom: 0.8rem;
}

.footer-section.links ul li a {
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-section.links ul li a::before {
    content: '→';
    color: var(--primary-color);
}

.footer-section.links ul li a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: #444;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-decoration: none;
    transition: background 0.3s, transform 0.3s;
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-5px);
}

.newsletter h4 {
    margin-bottom: 1rem;
}

.newsletter form {
    display: flex;
}

.newsletter input {
    flex: 1;
    padding: 0.8rem 1rem;
    border: none;
    border-radius: 5px 0 0 5px;
    outline: none;
}

.newsletter button {
    padding: 0 1rem;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 0 5px 5px 0;
    cursor: pointer;
    transition: background 0.3s;
}

.newsletter button:hover {
    background: var(--dark-blue);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1rem;
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--white);
    opacity: 0.7;
    text-decoration: none;
    transition: opacity 0.3s;
}

.footer-links a:hover {
    opacity: 1;
}

/* 认证按钮 */
.auth-btn {
    padding: 0.7rem 1.5rem;
    border: none;
    border-radius: 50px;
    font-size: 0.9rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: background 0.3s, transform 0.3s;
    font-weight: 600;
}

.login-btn {
    background: transparent;
    color: var(--text-color);
    border: 1px solid var(--gray);
}

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

.auth-btn:hover {
    transform: translateY(-2px);
}

.login-btn:hover {
    background: rgba(0, 0, 0, 0.05);
}

/* 响应式样式 */
@media (max-width: 1024px) {
    .hero {
        padding-top: 7rem;
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
        margin-bottom: 3rem;
    }
    
    .hero-buttons, .hero-stats {
        justify-content: center;
    }
    
    .download-container {
        flex-direction: column;
    }
    
    .download-info {
        max-width: 100%;
        margin-bottom: 3rem;
    }
    
    .download-features {
        justify-content: center;
    }
    
    .download-buttons {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        justify-content: center;
        gap: 2rem;
        transition: right 0.3s;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    }

    .nav-links.active {
        right: 0;
    }

    .menu-btn, .close-btn {
        display: block;
    }

    .close-btn {
        position: absolute;
        top: 1rem;
        right: 1rem;
    }

    .auth-container {
        display: none;
    }
    
    .feature-card, .gallery-item {
        transform: none !important;
    }
    
    .footer-bottom {
        flex-direction: column;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .stat-item {
        align-items: center;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .cta-button, .secondary-button {
        width: 100%;
    }
    
    .download-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .download-btn {
        width: 100%;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
}