/* 重置樣式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 工業風格主題 */
:root {
    --primary-color: #000000;
    --secondary-color: #1a1a1a;
    --accent-color: #ffffff;
    --accent-secondary: #cccccc;
    --highlight-color: #ff6600;
    --border-color: #333333;
    --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* 整體樣式 */
body {
    font-family: var(--font-main);
    background-color: var(--primary-color);
    color: var(--accent-color);
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 導覽列 */
.navbar {
    background-color: var(--secondary-color);
    padding: 15px 0;
    border-bottom: 2px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--accent-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo i {
    color: var(--highlight-color);
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    color: var(--accent-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--highlight-color);
}

.btn-login {
    background-color: var(--highlight-color);
    color: var(--primary-color) !important;
    padding: 8px 20px;
    border-radius: 4px;
    font-weight: bold;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--accent-color);
    font-size: 1.5rem;
    cursor: pointer;
}

/* 主視覺區域 */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.8)), 
                url('https://images.unsplash.com/photo-1513475382585-d06e58bcb0e0?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80');
    background-size: cover;
    background-position: center;
    padding: 100px 0;
    text-align: center;
    border-bottom: 2px solid var(--border-color);
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--accent-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.btn-primary, .btn-secondary {
    padding: 12px 30px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s;
    display: inline-block;
}

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

.btn-secondary {
    background-color: transparent;
    color: var(--accent-color);
    border: 2px solid var(--border-color);
}

.btn-primary:hover {
    background-color: #e55a00;
    transform: translateY(-3px);
}

.btn-secondary:hover {
    border-color: var(--highlight-color);
    color: var(--highlight-color);
    transform: translateY(-3px);
}

/* 內容區域 */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.section-header p {
    color: var(--accent-secondary);
    font-size: 1.1rem;
}

.seo-content {
    background-color: var(--secondary-color);
    border-top: 2px solid var(--border-color);
    border-bottom: 2px solid var(--border-color);
}

.seo-content h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.seo-content p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    line-height: 1.8;
}

/* YouTube影片區 */
.youtube-section {
    background-color: var(--primary-color);
}

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

.video-card {
    background-color: var(--secondary-color);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform 0.3s, border-color 0.3s;
}

.video-card:hover {
    transform: translateY(-5px);
    border-color: var(--highlight-color);
}

.video-thumbnail {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.video-info {
    padding: 20px;
}

.video-info h3 {
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.video-info p {
    color: var(--accent-secondary);
    margin-bottom: 15px;
    font-size: 0.9rem;
}

.video-meta {
    display: flex;
    justify-content: space-between;
    color: var(--accent-secondary);
    font-size: 0.9rem;
}

/* Instagram相片區 */
.instagram-section {
    background-color: var(--secondary-color);
    border-top: 2px solid var(--border-color);
    border-bottom: 2px solid var(--border-color);
}

.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
}

.photo-card {
    background-color: var(--primary-color);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform 0.3s, border-color 0.3s;
}

.photo-card:hover {
    transform: translateY(-5px);
    border-color: var(--highlight-color);
}

.photo-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.photo-info {
    padding: 15px;
}

.photo-info h3 {
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.photo-info p {
    color: var(--accent-secondary);
    margin-bottom: 15px;
    font-size: 0.9rem;
}

.photo-meta {
    display: flex;
    justify-content: space-between;
    color: var(--accent-secondary);
    font-size: 0.9rem;
}

/* 下載區域 */
.download-section {
    background-color: var(--primary-color);
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.download-card {
    background-color: var(--secondary-color);
    border-radius: 8px;
    padding: 25px;
    text-align: center;
    text-decoration: none;
    color: var(--accent-color);
    border: 1px solid var(--border-color);
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.download-card:hover {
    transform: translateY(-5px);
    border-color: var(--highlight-color);
    box-shadow: 0 5px 15px rgba(255, 102, 0, 0.1);
}

.download-card i {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--highlight-color);
}

.download-card h3 {
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.download-card p {
    color: var(--accent-secondary);
    font-size: 0.9rem;
}

/* 頁尾 */
.footer {
    background-color: var(--secondary-color);
    padding: 60px 0 30px;
    border-top: 2px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--highlight-color);
}

.footer-section p, .footer-section a {
    color: var(--accent-secondary);
    margin-bottom: 10px;
    display: block;
    text-decoration: none;
}

.footer-section a:hover {
    color: var(--highlight-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    color: var(--accent-secondary);
    font-size: 0.9rem;
}

/* 響應式設計 */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .section-header h2 {
        font-size: 2.2rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--secondary-color);
        flex-direction: column;
        padding: 20px;
        border-top: 1px solid var(--border-color);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .video-grid, .photo-grid {
        grid-template-columns: 1fr;
    }
    
    .download-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .hero {
        padding: 70px 0;
    }
    
    section {
        padding: 60px 0;
    }
    
    .download-grid {
        grid-template-columns: 1fr;
    }
}