:root {
    --chk-primary: #e8505b;
    --chk-primary-dark: #d63d48;
    --chk-pink-light: #fff0f3;
    --chk-pink-subtle: #fff9f9;
    --chk-dark: #2d2d3a;
    --chk-dark-deep: #1e1e28;
    --chk-border: #f2e6e8;
    --chk-text: #444444;
    --chk-text-muted: #888888;
    --chk-white: #ffffff;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    background-color: #faf7f7;
    color: var(--chk-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 13px;
    line-height: 1.6;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; transition: all 0.2s ease; }
a:hover { color: var(--chk-primary); }

.chk-container { max-width: 1220px; margin: 0 auto; padding: 0 15px; }

.chk-header {
    background: var(--chk-white);
    border-bottom: 1px solid var(--chk-border);
}
.chk-header-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
}
.chk-logo img { height: 38px; max-width: 180px; object-fit: contain; }

.chk-search-box {
    display: flex;
    align-items: center;
    border: 1px solid var(--chk-border);
    border-radius: 20px;
    padding: 4px 15px;
    background: var(--chk-pink-subtle);
    width: 320px;
}
.chk-search-box input {
    border: none;
    background: transparent;
    outline: none;
    font-size: 12px;
    width: 100%;
    color: #333;
}

.chk-nav-bar {
    background: var(--chk-white);
    border-top: 1px solid #faebed;
    border-bottom: 1px solid var(--chk-border);
}
.chk-nav-list {
    display: flex;
    list-style: none;
    align-items: center;
    justify-content: center;
    overflow-x: auto;
    white-space: nowrap;
}
.chk-nav-list li a {
    display: block;
    padding: 12px 22px;
    color: var(--chk-dark);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
}
.chk-nav-list li a:hover, .chk-nav-list li.active a {
    color: var(--chk-primary);
}

.chk-notice-bar {
    background: var(--chk-pink-light);
    border-bottom: 1px solid #fedfe3;
    padding: 10px 0;
    color: var(--chk-primary);
    font-size: 12px;
}

.chk-sec-title {
    text-align: center;
    margin: 40px 0 25px;
}
.chk-sec-title h2 {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--chk-dark);
}
.chk-sec-title p {
    font-size: 12px;
    color: var(--chk-text-muted);
    margin-top: 4px;
}

.chk-hero-duos {
    margin: 25px 0 35px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}
.chk-hero-card {
    background: linear-gradient(135deg, #fff3f5 0%, #fee4e8 100%);
    border: 1px solid #fcd3da;
    border-radius: 8px;
    padding: 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 15px rgba(232,80,91,0.05);
}
.chk-hero-info { flex: 1; padding-right: 15px; }
.chk-hero-badge {
    display: inline-block;
    background: var(--chk-primary);
    color: #fff;
    font-size: 10px;
    padding: 2px 8px;
    border-radius: 20px;
    margin-bottom: 8px;
    font-weight: 600;
}
.chk-hero-name {
    font-size: 15px;
    font-weight: 700;
    color: var(--chk-dark);
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.chk-hero-price { font-size: 20px; font-weight: 800; color: var(--chk-primary); }
.chk-hero-img {
    width: 85px;
    height: 85px;
    object-fit: contain;
    background: #fff;
    padding: 6px;
    border-radius: 6px;
}

.chk-quad-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    margin-bottom: 35px;
}
.chk-quad-card {
    background: var(--chk-white);
    border: 1px solid var(--chk-border);
    border-radius: 6px;
    padding: 20px 15px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.02);
}
.chk-quad-card img {
    width: 50px;
    height: 50px;
    object-fit: contain;
    margin: 0 auto 10px;
}
.chk-quad-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--chk-dark);
    height: 34px;
    overflow: hidden;
    margin-bottom: 6px;
}
.chk-quad-price {
    font-size: 14px;
    font-weight: 700;
    color: var(--chk-primary);
}

.chk-offer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}
.chk-offer-card {
    background: var(--chk-white);
    border: 1px solid var(--chk-border);
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.02);
}
.chk-offer-head {
    background: var(--chk-pink-light);
    color: var(--chk-primary);
    padding: 10px 15px;
    font-size: 12px;
    font-weight: 700;
    display: flex;
    justify-content: space-between;
}
.chk-offer-item {
    display: flex;
    align-items: center;
    padding: 12px 15px;
    border-bottom: 1px solid var(--chk-border);
}
.chk-offer-item:last-child { border-bottom: none; }
.chk-offer-item img {
    width: 42px;
    height: 42px;
    object-fit: contain;
    margin-right: 12px;
    background: var(--chk-pink-subtle);
    padding: 3px;
    border-radius: 3px;
}
.chk-offer-name {
    flex: 1;
    font-size: 12px;
    color: var(--chk-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.chk-offer-price { font-weight: 700; color: var(--chk-primary); margin-left: 8px; }

.chk-grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    margin-bottom: 35px;
}
.chk-card-4 {
    background: var(--chk-white);
    border: 1px solid var(--chk-border);
    border-radius: 6px;
    padding: 15px;
    text-align: center;
    position: relative;
    box-shadow: 0 2px 8px rgba(0,0,0,0.02);
}
.chk-card-4:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(232,80,91,0.08);
}
.chk-card-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--chk-primary);
    color: #fff;
    font-size: 9px;
    padding: 1px 6px;
    border-radius: 10px;
}
.chk-card-thumb {
    width: 100%;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 10px 0;
}
.chk-card-thumb img {
    max-width: 80px;
    max-height: 80px;
    object-fit: contain;
}
.chk-card-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--chk-dark);
    height: 34px;
    overflow: hidden;
    margin-bottom: 6px;
}
.chk-card-price {
    font-size: 14px;
    font-weight: 700;
    color: var(--chk-primary);
}

.chk-horiz-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}
.chk-horiz-card {
    background: var(--chk-white);
    border: 1px solid var(--chk-border);
    border-radius: 6px;
    padding: 20px;
    display: flex;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.02);
}
.chk-horiz-card img {
    width: 75px;
    height: 75px;
    object-fit: contain;
    margin-right: 20px;
    background: var(--chk-pink-subtle);
    padding: 6px;
    border-radius: 4px;
}
.chk-horiz-info { flex: 1; overflow: hidden; }
.chk-horiz-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--chk-dark);
    margin-bottom: 6px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chk-dark-banner {
    background: var(--chk-dark);
    border-radius: 8px;
    padding: 25px 20px;
    margin-bottom: 40px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}
.chk-dark-card {
    background: var(--chk-dark-deep);
    border: 1px solid #3d3d4e;
    border-radius: 6px;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.chk-dark-name {
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 6px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chk-news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}
.chk-news-card {
    background: var(--chk-white);
    border: 1px solid var(--chk-border);
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.02);
}
.chk-news-thumb {
    width: 100%;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--chk-pink-subtle);
    padding: 10px;
}
.chk-news-thumb img {
    max-width: 75px;
    max-height: 75px;
    object-fit: contain;
}
.chk-news-body { padding: 15px; }
.chk-news-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--chk-dark);
    height: 36px;
    overflow: hidden;
    margin-bottom: 8px;
}
.chk-news-foot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 8px;
    border-top: 1px solid var(--chk-border);
}
.chk-news-btn {
    background: var(--chk-primary);
    color: #fff;
    padding: 3px 10px;
    font-size: 11px;
    border-radius: 12px;
    font-weight: 600;
}
.chk-news-btn:hover { background: var(--chk-primary-dark); color: #fff; }

.chk-catalog-box {
    background: var(--chk-white);
    border: 1px solid var(--chk-border);
    border-radius: 6px;
    padding: 20px;
    margin-bottom: 50px;
}
.chk-catalog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
.chk-catalog-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    background: #fafafa;
    border-radius: 4px;
}
.chk-catalog-item:hover { background: var(--chk-pink-subtle); }
.chk-catalog-left { display: flex; align-items: center; flex: 1; overflow: hidden; }
.chk-catalog-left img {
    width: 32px;
    height: 32px;
    object-fit: contain;
    margin-right: 10px;
    background: #fff;
    padding: 2px;
}
.chk-catalog-title {
    font-size: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.chk-catalog-right {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: 10px;
}

.chk-panel-wrap {
    max-width: 980px;
    margin: 40px auto 60px;
    background: var(--chk-white);
    border: 1px solid var(--chk-border);
    border-radius: 6px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.03);
}
.chk-detail-layout {
    display: flex;
    flex-wrap: wrap;
    padding: 35px;
    gap: 35px;
}
.chk-detail-media {
    flex: 0 0 340px;
    text-align: center;
    border-right: 1px solid var(--chk-border);
    padding-right: 35px;
}
.chk-detail-media img {
    max-width: 240px;
    max-height: 240px;
    object-fit: contain;
}
.chk-detail-form { flex: 1; min-width: 300px; }
.chk-detail-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--chk-dark);
    margin-bottom: 12px;
}
.chk-price-badge-box {
    background: var(--chk-pink-light);
    border: 1px solid #fedde2;
    padding: 15px 20px;
    border-radius: 6px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}
.chk-price-lg { font-size: 26px; font-weight: 800; color: var(--chk-primary); }

.chk-form-group { margin-bottom: 18px; }
.chk-form-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--chk-dark);
    margin-bottom: 6px;
}
.chk-form-control {
    width: 100%;
    height: 40px;
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 0 12px;
    font-size: 13px;
    outline: none;
}
.chk-form-control:focus { border-color: var(--chk-primary); }
.chk-btn-submit {
    width: 100%;
    height: 44px;
    background: var(--chk-primary);
    color: var(--chk-white);
    font-size: 14px;
    font-weight: 700;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s ease;
}
.chk-btn-submit:hover { background: var(--chk-primary-dark); }

.chk-tabs-head {
    display: flex;
    background: var(--chk-pink-subtle);
    border-bottom: 1px solid var(--chk-border);
}
.chk-tab-btn {
    flex: 1;
    text-align: center;
    padding: 14px 0;
    font-weight: 600;
    color: #666;
    border-right: 1px solid var(--chk-border);
}
.chk-tab-btn:last-child { border-right: none; }
.chk-tab-btn.active {
    background: var(--chk-white);
    color: var(--chk-primary);
    border-top: 3px solid var(--chk-primary);
}

.chk-footer {
    background: var(--chk-dark);
    color: #b0b3c6;
    padding: 35px 0 25px;
    text-align: center;
    font-size: 12px;
    border-top: 3px solid var(--chk-primary);
}
.chk-footer-nav { margin-bottom: 12px; }
.chk-footer-nav a { color: #e2e4f0; margin: 0 12px; }
.chk-footer-nav a:hover { color: var(--chk-primary); }
.chk-copyright { color: #787a91; font-size: 11px; }

@media (max-width: 1024px) {
    .chk-quad-grid, .chk-grid-4 { grid-template-columns: repeat(2, 1fr); }
    .chk-offer-grid, .chk-news-grid, .chk-catalog-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .chk-hero-duos, .chk-horiz-grid, .chk-dark-banner, .chk-quad-grid, .chk-grid-4 { grid-template-columns: 1fr; }
    .chk-detail-layout { flex-direction: column; }
    .chk-detail-media { border-right: none; border-bottom: 1px solid var(--chk-border); padding-right: 0; padding-bottom: 25px; }
}