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

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', Arial, sans-serif;
    background: #0a0e27;
    color: #fff;
    line-height: 1.6;
    overflow-x: hidden;
}

/* 导航栏 */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 20px 0;
    box-shadow: 0 2px 20px rgba(0, 188, 255, 0.1);
}

nav .container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 30px;
}

nav .logo {
    font-size: 24px;
    font-weight: bold;
    background: linear-gradient(135deg, #00bcff, #1e90ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 40px;
}

nav a {
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    transition: all 0.3s;
    position: relative;
}

nav a:hover {
    color: #00bcff;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #00bcff, #1e90ff);
    transition: width 0.3s;
}

nav a:hover::after {
    width: 100%;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 30px;
}

/* 区块样式 */
section {
    min-height: 100vh;
    padding: 100px 0;
    position: relative;
}

/* 主页区域 */
#home {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 100%);
    position: relative;
    overflow: hidden;
}

#home::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 188, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    top: -250px;
    right: -250px;
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.hero-content {
    text-align: center;
    z-index: 1;
}

.hero-content h1 {
    font-size: 56px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #00bcff, #1e90ff, #00ff88);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease-out;
}

.hero-content p {
    font-size: 20px;
    color: #8892b0;
    margin-bottom: 40px;
    animation: fadeInUp 1s ease-out 0.2s;
    animation-fill-mode: both;
}

.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 60px;
    animation: fadeInUp 1s ease-out 0.4s;
    animation-fill-mode: both;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 40px rgba(0, 188, 255, 0.3);
    border-color: #00bcff;
}

.feature-card .icon {
    font-size: 48px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #00bcff, #1e90ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #fff;
}

.feature-card p {
    color: #8892b0;
    font-size: 14px;
    line-height: 1.8;
}

/* 免责声明 */
.disclaimer {
    margin-top: 60px;
    padding: 30px;
    background: rgba(255, 59, 48, 0.1);
    border: 2px solid rgba(255, 59, 48, 0.3);
    border-radius: 15px;
    text-align: left;
}

.disclaimer h3 {
    color: #ff3b30;
    margin-bottom: 15px;
    font-size: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.disclaimer h3::before {
    content: '⚠️';
    font-size: 24px;
}

.disclaimer p {
    color: #ccc;
    line-height: 1.8;
    font-size: 14px;
}

.disclaimer ul {
    list-style: none;
    margin-top: 15px;
}

.disclaimer li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
    color: #ccc;
}

.disclaimer li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #ff3b30;
    font-weight: bold;
}

/* 商品评价区域 */
#reviews {
    background: linear-gradient(135deg, #1a1f3a 0%, #0a0e27 100%);
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 42px;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #00bcff, #1e90ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title p {
    color: #8892b0;
    font-size: 18px;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.review-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s;
}

.review-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 40px rgba(0, 188, 255, 0.3);
}

.review-image {
    width: 100%;
    height: 250px;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #8892b0;
    font-size: 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.review-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.review-content {
    padding: 25px;
}

.review-content .rating {
    color: #ffd700;
    margin-bottom: 10px;
    font-size: 18px;
}

.review-content p {
    color: #8892b0;
    font-size: 14px;
    line-height: 1.8;
}

/* 联系我们区域 */
#contact {
    background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 100%);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.contact-info {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 40px;
}

.contact-item {
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.contact-item h3 {
    color: #00bcff;
    margin-bottom: 10px;
    font-size: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-item p {
    color: #8892b0;
    font-size: 16px;
    line-height: 1.8;
}

.contact-item a {
    color: #00bcff;
    text-decoration: none;
    transition: all 0.3s;
}

.contact-item a:hover {
    color: #1e90ff;
    text-decoration: underline;
}

.contact-form {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 40px;
}

.contact-form h3 {
    margin-bottom: 30px;
    font-size: 28px;
    color: #fff;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    color: #8892b0;
    font-size: 14px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #fff;
    font-size: 14px;
    transition: all 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #00bcff;
    box-shadow: 0 0 20px rgba(0, 188, 255, 0.2);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.btn-submit {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #00bcff, #1e90ff);
    border: none;
    border-radius: 8px;
    color: #fff;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 188, 255, 0.4);
}

/* 页脚 */
footer {
    background: rgba(10, 14, 39, 0.95);
    padding: 30px 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

footer p {
    color: #8892b0;
    font-size: 14px;
}

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

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 28px;
    cursor: pointer;
    padding: 5px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    /* 导航栏 */
    nav {
        padding: 15px 0;
    }

    nav .container {
        padding: 0 20px;
    }

    nav .logo {
        font-size: 20px;
    }

    .mobile-menu-btn {
        display: block;
    }

    nav ul {
        position: fixed;
        top: 64px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 64px);
        background: rgba(10, 14, 39, 0.98);
        flex-direction: column;
        gap: 0;
        padding: 30px 0;
        transition: left 0.3s ease;
        z-index: 999;
    }

    nav ul.active {
        left: 0;
    }

    nav ul li {
        width: 100%;
        text-align: center;
        padding: 20px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    nav a {
        font-size: 18px;
    }

    /* 区块 */
    section {
        padding: 60px 0;
        min-height: auto;
    }

    .container {
        padding: 0 20px;
    }

    /* 主页 */
    #home {
        min-height: 100vh;
        padding: 80px 0 60px;
    }

    .hero-content h1 {
        font-size: 32px;
        line-height: 1.2;
    }

    .hero-content p {
        font-size: 16px;
        margin-bottom: 30px;
    }

    .features {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-top: 40px;
    }

    .feature-card {
        padding: 25px;
    }

    .feature-card .icon {
        font-size: 40px;
    }

    .feature-card h3 {
        font-size: 20px;
    }

    .feature-card p {
        font-size: 13px;
    }

    /* 免责声明 */
    .disclaimer {
        margin-top: 40px;
        padding: 20px;
    }

    .disclaimer h3 {
        font-size: 18px;
    }

    .disclaimer p,
    .disclaimer li {
        font-size: 13px;
    }

    /* 标题 */
    .section-title h2 {
        font-size: 32px;
    }

    .section-title p {
        font-size: 16px;
    }

    /* 评价区域 */
    .reviews-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .review-image {
        height: 200px;
    }

    .review-content {
        padding: 20px;
    }

    /* 联系我们 */
    .contact-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .contact-info,
    .contact-form {
        padding: 30px 20px;
    }

    .contact-item {
        margin-bottom: 25px;
        padding-bottom: 25px;
    }

    .contact-item h3 {
        font-size: 16px;
    }

    .contact-item p {
        font-size: 14px;
    }

    .contact-form h3 {
        font-size: 24px;
    }

    /* 页脚 */
    footer {
        padding: 20px 0;
    }

    footer p {
        font-size: 12px;
        line-height: 1.6;
    }
}

/* 小屏幕优化 */
@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 28px;
    }

    .hero-content p {
        font-size: 14px;
    }

    .section-title h2 {
        font-size: 28px;
    }

    .feature-card {
        padding: 20px;
    }

    .contact-info,
    .contact-form {
        padding: 25px 15px;
    }
}