body {
    background: #181b23;
    color: #fff;
    font-family: 'Segoe UI', Arial, sans-serif;
    margin: 0;
    padding: 0;
}
* {
    box-sizing: border-box;
}
.header {
    padding: 40px 60px 20px 60px;
    background: linear-gradient(90deg, #181b23 60%, #23263a 100%);
}
.header h1 {
    font-size: 3rem;
    font-weight: bold;
    margin: 0 0 10px 0;
}
.subtitle {
    font-size: 1.1rem;
    color: #b0b3c6;
    margin-bottom: 20px;
}
.detail-btn {
    background: #23263a;
    color: #fff;
    border: 1px solid #44485a;
    border-radius: 8px;
    padding: 10px 24px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s;
}
.detail-btn:hover {
    background: #2d3147;
}
.main-content {
    padding: 0 60px 40px 60px;
}
.search-bar-container {
    margin: 30px 0 20px 0;
}
.search-bar {
    width: 100%;
    padding: 16px;
    border-radius: 8px;
    border: none;
    background: #23263a;
    color: #fff;
    font-size: 1.1rem;
}
.content-wrapper {
    display: flex;
    gap: 40px;
}
.sidebar {
    background: #20222e;
    border-radius: 16px;
    padding: 32px 24px;
    min-width: 240px;
    max-width: 260px;
    box-shadow: 0 2px 16px 0 #0002;
    height: fit-content;
}
.sidebar h2 {
    font-size: 1.3rem;
    margin-bottom: 24px;
}
.category-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.category-list li {
    font-size: 1.08rem;
    margin-bottom: 18px;
    color: #c2c5d6;
    cursor: pointer;
    transition: color 0.2s;
}
.category-list li:hover {
    color: #fff;
}
.products-section {
    flex: 1;
}
.products-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
}
.products-header h2 {
    font-size: 1.3rem;
    margin: 0;
}
.sort-by {
    color: #b0b3c6;
    font-size: 1rem;
    cursor: pointer;
}
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 28px;
}
.product-card {
    background: #23263a;
    border-radius: 16px;
    padding: 28px 22px 22px 22px;
    box-shadow: 0 2px 12px 0 #0002;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    min-height: 210px;
    position: relative;
}
.product-card .icon {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    margin-bottom: 18px;
    background: #2d3147;
}
.product-card.blue .icon {
    background: #1e7fc7;
}
.product-card.purple .icon {
    background: #a07cf7;
}
.product-card.orange .icon {
    background: #ff9800;
}
.product-card h3 {
    margin: 0 0 8px 0;
    font-size: 1.18rem;
    font-weight: 600;
}
.product-card p {
    color: #b0b3c6;
    font-size: 0.98rem;
    margin: 0 0 18px 0;
}
.estimate-btn {
    background: #23263a;
    color: #fff;
    border: 1px solid #44485a;
    border-radius: 8px;
    padding: 8px 18px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s;
    display: flex;
    align-items: center;
    gap: 8px;
}
.estimate-btn:hover {
    background: #2d3147;
}
.site-header {
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: #23232b;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    height: 56px;
    box-shadow: 0 2px 8px 0 #0002;
}
.site-header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}
.ey-logo {
    display: flex;
    align-items: center;
    margin-right: 8px;
}
.site-title {
    font-size: 1.18rem;
    color: #fff;
    font-weight: 500;
    letter-spacing: 0.01em;
}
.site-header-right {
    display: flex;
    align-items: center;
    gap: 18px;
}
.site-header-icon.bell {
    display: flex;
    align-items: center;
    cursor: pointer;
    margin-right: 8px;
}
.site-header-avatar {
    display: flex;
    align-items: center;
    border-radius: 50%;
    overflow: hidden;
    width: 36px;
    height: 36px;
    background: #ffd600;
}
@media (max-width: 1100px) {
    .content-wrapper {
        flex-direction: column;
    }
    .sidebar {
        max-width: 100%;
        margin-bottom: 30px;
    }
}
@media (max-width: 700px) {
    .header, .main-content {
        padding: 20px;
    }
    .products-grid {
        grid-template-columns: 1fr;
    }
    .site-header {
        padding: 0 10px;
        height: 48px;
    }
    .site-title {
        font-size: 1rem;
    }
    .site-header-avatar {
        width: 30px;
        height: 30px;
    }
}