body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: #f8fafc;
    color: #334155;
}
.cairn-header {
    position: relative;
    z-index: 10001;
    height: 60px;
    background: #ffffff;
    border-bottom: 1px solid #f1f5f9;
}
.cairn-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
}
.cairn-logo {
    float: left;
    padding: 10px 0;
}
.cairn-logo img {
    height: 40px;
    display: block;
}
.cairn-nav {
    float: right;
    list-style: none;
    margin: 0;
    padding: 0;
}
.cairn-nav-item {
    float: left;
    line-height: 60px;
    margin-left: 25px;
}
.cairn-nav-item a {
    color: #334155;
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: color 0.3s;
}
.cairn-nav-item a:hover {
    color: #e11d48;
}
.cairn-main {
    max-width: 1200px;
    margin: 30px auto;
    padding: 0 20px;
    min-height: calc(100vh - 240px);
}
.cairn-tips {
    background: #fffbeb;
    border: 1px solid #fde68a;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 30px;
    font-size: 13px;
    color: #b45309;
    line-height: 1.5;
}
.cairn-breadcrumb-row {
    background: #f1f5f9;
    padding: 12px 20px;
    border-radius: 8px;
    margin-bottom: 25px;
    font-size: 13px;
    color: #64748b;
}
.cairn-breadcrumb-row a {
    color: #475569;
    text-decoration: none;
}
.cairn-cat-row {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}
.cairn-cat-pill {
    background: #ffffff;
    border: 1px solid #cbd5e1;
    padding: 8px 18px;
    border-radius: 20px;
    text-decoration: none;
    color: #475569;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.3s;
}
.cairn-cat-pill:hover, .cairn-cat-pill.active {
    border-color: #e11d48;
    color: #e11d48;
    background: #fff5f5;
}
.cairn-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
}
.cairn-card {
    background: #ffffff;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #e2e8f0;
    display: flex;
    flex-direction: column;
    transition: all 0.3s;
}
.cairn-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.04);
    border-color: #cbd5e1;
}
.cairn-card-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    background: #f8fafc;
    border-bottom: 1px solid #f1f5f9;
}
.cairn-card-body {
    padding: 16px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    justify-content: space-between;
}
.cairn-card-title {
    font-size: 14px;
    font-weight: 600;
    color: #1e293b;
    margin: 0 0 15px;
    line-height: 1.4;
    height: 40px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.cairn-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #f1f5f9;
    padding-top: 12px;
}
.cairn-price {
    font-size: 18px;
    color: #e11d48;
    font-weight: 700;
}
.cairn-badge {
    font-size: 10px;
    background: #eff6ff;
    color: #2563eb;
    padding: 1px 4px;
    border-radius: 4px;
    margin-left: 5px;
}
.cairn-btn {
    background: #e11d48;
    color: #ffffff;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.3s;
    text-align: center;
}
.cairn-btn:hover {
    background: #be123c;
}
.cairn-btn-disabled {
    background: #cbd5e1;
    color: #94a3b8;
    cursor: not-allowed;
    text-align: center;
}
.cairn-detail-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}
@media (min-width: 992px) {
    .cairn-detail-grid {
        grid-template-columns: 1fr 1fr;
    }
}
.cairn-detail-left {
    display: flex;
    flex-direction: column;
    gap: 25px;
}
.cairn-detail-right {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.cairn-img-wrapper {
    background: #ffffff;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    padding: 20px;
    text-align: center;
}
.cairn-img-wrapper img {
    max-width: 100%;
    height: auto;
    max-height: 400px;
    object-fit: contain;
}
.cairn-panel {
    background: #ffffff;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    padding: 24px;
}
.cairn-panel-title {
    font-size: 16px;
    font-weight: 600;
    color: #1e293b;
    margin: 0 0 20px;
    border-bottom: 2px solid #f1f5f9;
    padding-bottom: 10px;
}
.cairn-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 25px;
}
.cairn-table td {
    border: 1px solid #e2e8f0;
    padding: 10px 14px;
    font-size: 13px;
}
.cairn-table tr td:first-child {
    background: #f8fafc;
    color: #64748b;
    width: 120px;
    font-weight: 500;
}
.cairn-table tr td:last-child {
    color: #1e293b;
    font-weight: 600;
}
.cairn-form-group {
    margin-bottom: 16px;
}
.cairn-form-label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    font-weight: 500;
    color: #475569;
}
.cairn-form-input {
    width: 100%;
    padding: 10px;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    box-sizing: border-box;
    font-size: 14px;
    outline: none;
    transition: border-color 0.3s;
}
.cairn-form-input:focus {
    border-color: #e11d48;
}
.cairn-bottom-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-top: 30px;
}
@media (min-width: 992px) {
    .cairn-bottom-layout {
        grid-template-columns: 7fr 3fr;
    }
}
.cairn-footer {
    background: #1e293b;
    color: #94a3b8;
    padding: 40px 0;
    text-align: center;
    font-size: 13px;
    margin-top: 80px;
}
.cairn-footer p {
    margin: 0;
}
.cairn-footer-links {
    margin-bottom: 15px;
}
.cairn-footer-links a {
    color: #cbd5e1;
    text-decoration: none;
    margin: 0 12px;
    transition: color 0.3s;
}
.cairn-footer-links a:hover {
    color: #e11d48;
}
.cairn-query-box {
    background: #ffffff;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    padding: 24px;
}
.cairn-query-tabs {
    display: flex;
    border-bottom: 2px solid #e2e8f0;
    margin-bottom: 25px;
}
.cairn-query-tab {
    flex: 1;
    text-align: center;
    padding: 12px;
    font-weight: 500;
    font-size: 13px;
    color: #64748b;
    text-decoration: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.3s;
}
.cairn-query-tab.active {
    border-color: #e11d48;
    color: #e11d48;
    font-weight: 600;
}