/* Manuals Page Styles */
.manuals-page {
    font-family: 'League Spartan', sans-serif;
}

/* Hero Section */
.manuals-hero {
    position: relative;
    width: 100%;
    height: auto;
    padding-bottom: 42.86%; /* 21:9 ratio */
    overflow: hidden;
    margin-top: 0;
}

.manuals-hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #f5f5f5;
}

.manuals-hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    filter: brightness(0.95);
}

/* Introduction Section - 参考首页 Values Section */
.manuals-intro {
    padding: 120px 0 80px;
    background-color: #FAF9F6;
}

.manuals-intro .section-title {
    font-family: 'League Spartan', sans-serif;
    font-weight: 700;
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 1rem;
}

.manuals-intro .philosophy-intro {
    width: 100%;
    margin-bottom: 30px;
}

.intro-lead {
    font-size: 1.2rem;
    font-weight: 400;
    color: #666;
    line-height: 1.6;
    margin-bottom: 2rem;
}

/* Page Indicator Dots - 参考首页 philosophy-dots 样式 */
.page-indicator {
    display: flex;
    gap: 12px;
    margin: 2rem 0;
    align-items: center;
}

.page-indicator .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: #B04152; /* 红色，与首页一致 */
    transition: all 0.3s ease;
    display: inline-block;
}

/* Product Filter Section */
.product-filter {
    padding: 60px 0 80px;
    background-color: #FAF9F6;
}

.product-selector {
    padding: 12px 20px;
    font-size: 1rem;
    border: 1px solid #ddd;
    border-radius: 8px;
    background-color: #fff;
    color: #333;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'League Spartan', sans-serif;
}

.product-selector:focus {
    border-color: #B04152;
    box-shadow: 0 0 0 0.2rem rgba(176, 65, 82, 0.25);
    outline: none;
}

.product-selector:hover {
    border-color: #B04152;
}

/* Manuals Content Section - 垂直布局 */
.manuals-content {
    padding: 80px 0 160px;
    background-color: #FAF9F6;
}

.manual-item {
    opacity: 1;
    transition: opacity 0.3s ease;
}

/* Manual Info */
.manual-info {
    margin-bottom: 2rem;
}

.product-category {
    display: inline-block;
    font-size: 0.9rem;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.manual-title {
    font-size: 2rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 0.5rem;
}

.manual-description {
    font-size: 1rem;
    color: #666;
    margin-bottom: 0;
}

/* Video Container */
.video-container {
    margin-bottom: 2rem;
}

.video-placeholder {
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: #d4d4d4;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.video-label {
    font-size: 1.5rem;
    color: #666;
    font-weight: 500;
}

/* Manual Instructions - 垂直布局 */
.manual-instructions {
    margin-top: 2rem;
}

.instruction-step {
    margin-bottom: 2rem;
    display: flex;
    align-items: flex-start;
}

.step-number {
    font-weight: 700;
    color: #333;
    font-size: 1rem;
    margin-right: 0.5rem;
    flex-shrink: 0;
}

.instruction-step p {
    font-size: 0.95rem;
    line-height: 1.7;
    color: #666;
    margin-bottom: 0;
    flex: 1;
}

/* Instruction Images */
.instruction-image {
    margin-bottom: 2rem;
}

.image-placeholder {
    width: 100%;
    height: 200px;
    background-color: #d4d4d4;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* Responsive Styles */
@media (max-width: 768px) {
    .manuals-hero {
        padding-bottom: 56.25%; /* 16:9 ratio for mobile */
    }
    
    .manuals-intro {
        padding: 80px 0 60px;
    }
    
    .manuals-intro .section-title {
        font-size: 2rem;
    }
    
    .intro-lead {
        font-size: 1.1rem;
        margin-bottom: 1.5rem;
    }
    
    .page-indicator {
        gap: 10px;
        margin: 1.5rem 0;
    }
    
    .page-indicator .dot {
        width: 10px;
        height: 10px;
    }
    
    .product-filter {
        padding: 40px 0 60px;
    }
    
    .product-selector {
        font-size: 0.95rem;
        padding: 10px 16px;
    }
    
    .manuals-content {
        padding: 60px 0 120px;
    }
    
    .manual-title {
        font-size: 1.75rem;
    }
    
    .image-placeholder {
        height: 150px;
    }
}

/* Small mobile screens */
@media (max-width: 480px) {
    .intro-lead {
        font-size: 1rem;
        margin-bottom: 1.2rem;
    }
    
    .page-indicator {
        gap: 8px;
        margin: 1.2rem 0;
    }
    
    .page-indicator .dot {
        width: 8px;
        height: 8px;
    }
}