:root {
    --primary-color: #5D5FEF;
    --secondary-color: #1E293B;
    --accent-color: #FF4C8C;
    --success-color: #38CB89;
    --warning-color: #FFAB2D;
    --error-color: #FF5252;
    --text-color: #4B5563;
    --light-text: #9CA3AF;
    --light-bg: #F3F4F6;
    --dark-bg: #111827;
    --white: #FFFFFF;
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --blur: 10px;
    --card-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
    --nav-height: 70px;
}

@font-face {
    font-family: 'HarmonyOS Sans';
    src: url('https://cdn.jsdelivr.net/gh/lxgw/HarmonyOS-Sans/dist/HarmonyOS_Sans_SC_Regular.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'HarmonyOS Sans', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-bg);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul, li {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    outline: none;
    background: none;
    font-family: inherit;
}

/* 公共组件样式 */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 5rem 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--light-text);
    max-width: 600px;
    margin: 0 auto;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(90deg, var(--primary-color), var(--primary-color) 60%, var(--accent-color));
    color: var(--white);
    box-shadow: 0 5px 15px rgba(93, 95, 239, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 8px 20px rgba(93, 95, 239, 0.5);
    transform: translateY(-3px);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-color);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-3px);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.35rem 1rem;
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: 50px;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur));
    border: 1px solid var(--glass-border);
    color: var(--primary-color);
}

.card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.12);
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(var(--blur));
    -webkit-backdrop-filter: blur(var(--blur));
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    background: rgba(255, 255, 255, 0.9);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 12px;
    font-size: 1.5rem;
}

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

.nav-link {
    position: relative;
    font-weight: 500;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
}

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

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

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

.nav-action {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.mobile-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--secondary-color);
}

/* 英雄区域样式 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f6f9fc, #f3f4f6);
    padding-top: var(--nav-height);
    overflow: hidden;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 700px;
    height: 700px;
    border-radius: 50%;
    background: radial-gradient(circle at center, rgba(93, 95, 239, 0.1), rgba(93, 95, 239, 0) 70%);
    z-index: 0;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle at center, rgba(255, 76, 140, 0.1), rgba(255, 76, 140, 0) 70%);
    z-index: 0;
}

.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
    position: relative;
    z-index: 1;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-title .gradient {
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-color);
    margin-bottom: 2.5rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
}

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

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

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

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

.hero-img {
    max-width: 100%;
    border-radius: 20px;
    box-shadow: var(--card-shadow);
    position: relative;
    z-index: 1;
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
}

.floating-badge {
    position: absolute;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(var(--blur));
    padding: 0.75rem 1.25rem;
    border-radius: 50px;
    box-shadow: var(--card-shadow);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
}

.floating-badge.top-right {
    top: 5%;
    right: -10%;
    animation: float 6s ease-in-out infinite;
}

.floating-badge.bottom-left {
    bottom: 5%;
    left: -10%;
    animation: float 6s ease-in-out infinite 2s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* 特色区域样式 */
.features {
    background: var(--white);
    padding: 8rem 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.feature-card {
    padding: 2.5rem;
    border-radius: 20px;
    background: var(--white);
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.12);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.feature-description {
    color: var(--text-color);
    margin-bottom: 1.5rem;
}

.learn-more {
    display: flex;
    align-items: center;
    color: var(--primary-color);
    font-weight: 600;
    gap: 0.5rem;
    transition: gap 0.3s ease;
}

.learn-more:hover {
    gap: 0.75rem;
}

/* 画廊样式 */
.gallery {
    padding: 8rem 0;
    background: var(--light-bg);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.gallery-item {
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    height: 350px;
    box-shadow: var(--card-shadow);
}

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

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

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2rem;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: var(--white);
    transform: translateY(100%);
    transition: transform 0.5s ease;
}

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

.gallery-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

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

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

/* 下载区域样式 */
.download {
    padding: 8rem 0;
    background: var(--white);
}

.download-container {
    display: flex;
    align-items: center;
    gap: 4rem;
}

.download-content {
    flex: 1;
}

.download-features {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.download-feature {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.feature-check {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--success-color);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
}

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

.download-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 2rem;
    border-radius: 16px;
    background: var(--secondary-color);
    color: var(--white);
    transition: all 0.3s ease;
}

.download-btn:hover {
    background: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

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

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

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

.download-btn-large {
    font-size: 1.1rem;
    font-weight: 700;
}

.download-image {
    flex: 1;
}

.download-img {
    max-width: 100%;
    border-radius: 20px;
    box-shadow: var(--card-shadow);
}

/* 页脚样式 */
.footer {
    background: var(--secondary-color);
    color: var(--white);
    padding: 5rem 0 2rem;
    position: relative;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1.5rem;
}

.footer-section-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--primary-color);
}

.footer-description {
    margin-bottom: 1.5rem;
    color: rgba(255, 255, 255, 0.7);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-link {
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-link:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

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

.newsletter-form {
    display: flex;
    margin-top: 1.5rem;
}

.newsletter-input {
    flex: 1;
    padding: 1rem;
    border: none;
    border-radius: 8px 0 0 8px;
    outline: none;
}

.newsletter-button {
    padding: 1rem;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 0 8px 8px 0;
    cursor: pointer;
    transition: background 0.3s ease;
}

.newsletter-button:hover {
    background: var(--accent-color);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.copyright {
    color: rgba(255, 255, 255, 0.7);
}

.footer-bottom-links {
    display: flex;
    gap: 2rem;
}

.footer-bottom-link {
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.3s ease;
}

.footer-bottom-link:hover {
    color: var(--primary-color);
}

/* 响应式样式 */
@media (max-width: 1024px) {
    .hero-container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-actions, .hero-stats {
        justify-content: center;
    }
    
    .download-container {
        flex-direction: column-reverse;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: 5rem 2rem 2rem;
        transition: right 0.3s ease;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        z-index: 1001;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .mobile-toggle {
        display: block;
    }
    
    .mobile-close {
        position: absolute;
        top: 2rem;
        right: 2rem;
    }
    
    .nav-action {
        display: none;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-description {
        font-size: 1.1rem;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
        align-items: center;
    }
    
    .stat-item {
        align-items: center;
    }
    
    .feature-card, .gallery-item {
        transform: none !important;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .footer-bottom-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .btn {
        width: 100%;
    }
    
    .download-buttons {
        flex-direction: column;
    }
    
    .download-btn {
        width: 100%;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
}