/* 页面标题 */
.page-header {
    text-align: center;
    padding: 80px 5% 50px;
    max-width: 800px;
    margin: 0 auto;
}

.page-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 3rem;
    margin-bottom: 20px;
    background: linear-gradient(to right, #00a0e9, #00c6ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 20px rgba(0, 198, 255, 0.3);
}

.page-subtitle {
    color: var(--text-gray);
    font-size: 1.2rem;
    margin-bottom: 30px;
}

/* 平台选择 */
.platform-selector {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin: 30px 0 50px;
}

.platform-btn {
    background: var(--card-bg);
    border: 1px solid rgba(0, 166, 255, 0.1);
    border-radius: 8px;
    padding: 15px 30px;
    font-size: 1.1rem;
    color: var(--text-gray);
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
}

    .platform-btn i {
        margin-right: 10px;
        font-size: 1.5rem;
    }

    .platform-btn:hover, .platform-btn.active {
        background: rgba(0, 166, 255, 0.2);
        border-color: var(--accent-color);
        color: var(--text-light);
        transform: translateY(-3px);
        box-shadow: 0 10px 20px rgba(0, 166, 255, 0.2);
    }

/* 下载卡片区域 */
.download-section {
    padding: 0 5% 80px;
    max-width: 1200px;
    margin: 0 auto;
}

.download-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.download-card {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 30px;
    transition: transform 0.3s, box-shadow 0.3s;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 166, 255, 0.1);
    position: relative;
    overflow: hidden;
}

    .download-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 15px 30px rgba(0, 166, 255, 0.3);
    }

    .download-card::before {
        content: '';
        position: absolute;
        top: -2px;
        left: -2px;
        right: -2px;
        bottom: -2px;
        background: linear-gradient(45deg, #00a0e9, #2a52d0, #00c6ff);
        z-index: -1;
        border-radius: 17px;
        opacity: 0;
        transition: opacity 0.3s;
    }

    .download-card:hover::before {
        opacity: 0.5;
    }

.platform-header {
    display: flex;
    align-items: center;
    margin-bottom: 25px;
}

.platform-icon {
    width: 70px;
    height: 70px;
    background: rgba(0, 166, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin-right: 20px;
    color: var(--accent-color);
}

.platform-info h3 {
    font-size: 1.8rem;
    margin-bottom: 5px;
}

.platform-info p {
    color: var(--text-gray);
    font-size: 1rem;
}

.version-info {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 25px;
}

.version-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
}

    .version-item:last-child {
        border-bottom: none;
    }

.download-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.download-btn {
    flex: 1;
    min-width: 120px;
    text-align: center;
    padding: 15px;
    border-radius: 8px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    color: white;
    font-weight: 500;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    align-items: center;
}

    .download-btn i {
        font-size: 1.8rem;
        margin-bottom: 10px;
    }

    .download-btn:hover {
        background: linear-gradient(90deg, var(--secondary-color), var(--accent-color));
        transform: translateY(-3px);
        box-shadow: 0 10px 20px rgba(0, 166, 255, 0.3);
    }

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
}

    .btn-secondary:hover {
        background: rgba(255, 255, 255, 0.2);
    }

/* 常见问题 */
.faq-section {
    padding: 80px 5%;
    max-width: 1000px;
    margin: 0 auto;
}

.section-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    margin-bottom: 50px;
    text-align: center;
    background: linear-gradient(to right, #00a0e9, #00c6ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.faq-container {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 40px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 166, 255, 0.1);
}

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

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

.faq-question {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--accent-color);
    display: flex;
    align-items: center;
}

    .faq-question i {
        margin-right: 15px;
    }

.faq-answer {
    color: var(--text-gray);
    padding-left: 40px;
    line-height: 1.8;
}

/* 页脚 */
.footer {
    background: var(--darker-bg);
    padding: 70px 5% 30px;
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
}

    .footer-logo i {
        color: var(--accent-color);
        margin-right: 15px;
    }

.footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
    margin: 30px 0;
}

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

        .footer-links a:hover {
            color: var(--accent-color);
        }

.social-links {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin: 30px 0;
}

    .social-links a {
        width: 50px;
        height: 50px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.05);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--text-light);
        font-size: 1.5rem;
        transition: all 0.3s;
    }

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

.copyright {
    color: var(--text-gray);
    font-size: 0.9rem;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: 30px;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .nav-links {
        display: none;
    }

    .page-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .download-container {
        grid-template-columns: 1fr;
    }

    .platform-selector {
        flex-direction: column;
        align-items: center;
    }

    .platform-btn {
        width: 100%;
        max-width: 300px;
    }

    .download-actions {
        flex-direction: column;
    }
}