/* 全局样式设置 */
body, html {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #0A0A23, #1a1a40);
    color: #FFFFFF;
    overflow-x: hidden;
    min-height: 100vh;
    line-height: 1.6;
    scroll-behavior: smooth;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.container {
    max-width: 1200px;
    margin: auto;
    padding: 20px;
}

.hero-section {
    background: linear-gradient(135deg, #0A0A23, #1a1a40);
    padding: 60px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section h1 {
    font-size: 3rem;
    color: #FFFFFF;
    margin-bottom: 20px;
}

.hero-section p {
    font-size: 1.2rem;
    color: #C0C0C0;
    margin-bottom: 40px;
}

.hero-section img {
    max-width: 100%;
    height: auto;
    margin-top: 20px;
}

.cta-button {
    display: inline-block;
    background-color: #FF6700;
    color: #FFFFFF;
    font-size: 1.2rem;
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 8px 15px rgba(255, 103, 0, 0.4);
}

.cta-button:hover {
    background-color: #e65c00;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(255, 103, 0, 0.6);
}

.features-section {
    background: linear-gradient(135deg, #1a1a40, #2a2a50);
    padding: 60px 20px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
}

.feature-box {
    background: #151530;
    border: 1px solid #AA00FF;
    border-radius: 10px;
    padding: 20px;
    width: 45%;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.feature-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(170, 0, 255, 0.3);
}

.feature-box h3 {
    color: #00FFF5;
    margin-bottom: 10px;
}

.specs-section {
    background: #101020;
    padding: 60px 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.spec-card {
    background: #151530;
    border: 1px solid #AA00FF;
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.spec-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(170, 0, 255, 0.3);
}

.quality-section {
    background: url('https://images.gptkong.com/product/iphone16/iphone16-6.png') no-repeat center center/cover;
    background-attachment: fixed;
    color: #FFFFFF;
    padding: 60px 20px;
    position: relative;
}

.quality-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 35, 0.7);
}

.design-section {
    background: linear-gradient(135deg, #2a2a50, #1a1a40);
    padding: 60px 20px;
    position: relative;
    overflow: hidden;
}

.design-section img {
    width: 100%;
    height: auto;
    display: block;
    margin: auto;
    border-radius: 10px;
}

.user-value-section {
    background: #101020;
    padding: 60px 20px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
}

.value-box {
    background: #151530;
    border: 1px solid #AA00FF;
    border-radius: 10px;
    padding: 20px;
    width: 45%;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.value-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(170, 0, 255, 0.3);
}

.promotion-section {
    background: linear-gradient(135deg, #1a1a40, #2a2a50);
    padding: 60px 20px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
}

.promotion-box {
    background: #151530;
    border: 1px solid #AA00FF;
    border-radius: 10px;
    padding: 20px;
    width: 45%;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.promotion-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(170, 0, 255, 0.3);
}

.footer-section {
    background: #0A0A23;
    color: #FFFFFF;
    text-align: center;
    padding: 40px 20px;
}

.footer-section a {
    color: #00FFF5;
    text-decoration: none;
    margin: 0 10px;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #AA00FF;
}

@media (max-width: 768px) {
    .hero-section h1 {
        font-size: 2.5rem;
    }

    .features-section, .user-value-section, .promotion-section {
        flex-direction: column;
        align-items: center;
    }

    .feature-box, .value-box, .promotion-box {
        width: 90%;
    }
}