:root {
    --rsk-primary: #7cb342;
    --rsk-primary-dark: #558b2f;
    --rsk-green-light: #f1f8e9;
    --rsk-dark: #2c3e50;
    --rsk-border: #e2e8f0;
    --rsk-gray-bg: #f8fafc;
    --rsk-text: #334155;
    --rsk-text-muted: #64748b;
    --rsk-white: #ffffff;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    background-color: #f1f5f9;
    color: var(--rsk-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(--rsk-primary); }

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

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

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

.rsk-nav-bar {
    background: var(--rsk-white);
    border-top: 1px solid #edf2f7;
    border-bottom: 1px solid var(--rsk-border);
}
.rsk-nav-list {
    display: flex;
    list-style: none;
    align-items: center;
    justify-content: center;
    overflow-x: auto;
    white-space: nowrap;
}
.rsk-nav-list li a {
    display: block;
    padding: 12px 22px;
    color: var(--rsk-dark);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
}
.rsk-nav-list li a:hover, .rsk-nav-list li.active a {
    color: var(--rsk-primary);
}

.rsk-notice-bar {
    background: var(--rsk-green-light);
    border-bottom: 1px solid #dcedc8;
    padding: 10px 0;
    color: var(--rsk-primary-dark);
    font-size: 12px;
    text-align: center;
}

.rsk-sec-title {
    margin: 30px 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--rsk-border);
    padding-bottom: 8px;
}
.rsk-sec-title h2 {
    font-size: 16px;
    font-weight: 700;
    color: var(--rsk-dark);
    text-transform: uppercase;
}

.rsk-main-split {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 25px;
    margin: 25px 0 35px;
}

.rsk-sidebar {
    background: var(--rsk-white);
    border: 1px solid var(--rsk-border);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.02);
}
.rsk-side-head {
    font-size: 14px;
    font-weight: 700;
    color: var(--rsk-dark);
    border-left: 3px solid var(--rsk-primary);
    padding-left: 10px;
    margin-bottom: 15px;
}
.rsk-side-item {
    display: flex;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--rsk-border);
}
.rsk-side-item:last-child { border-bottom: none; }
.rsk-side-item img {
    width: 45px;
    height: 45px;
    object-fit: contain;
    margin-right: 12px;
    background: var(--rsk-gray-bg);
    padding: 4px;
    border-radius: 6px;
}
.rsk-side-info { flex: 1; overflow: hidden; }
.rsk-side-name {
    font-size: 12px;
    font-weight: 600;
    color: var(--rsk-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 2px;
}
.rsk-side-price { font-size: 13px; font-weight: 800; color: var(--rsk-primary); }

.rsk-hero-duos {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-bottom: 25px;
}
.rsk-hero-card {
    background: var(--rsk-white);
    border: 1px solid var(--rsk-border);
    border-radius: 8px;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.02);
}
.rsk-hero-info { flex: 1; padding-right: 15px; }
.rsk-hero-badge {
    display: inline-block;
    background: var(--rsk-green-light);
    color: var(--rsk-primary-dark);
    font-size: 10px;
    padding: 2px 8px;
    border-radius: 4px;
    margin-bottom: 6px;
    font-weight: 700;
}
.rsk-hero-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--rsk-dark);
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.rsk-hero-price { font-size: 18px; font-weight: 800; color: var(--rsk-primary); }
.rsk-hero-img {
    width: 75px;
    height: 75px;
    object-fit: contain;
    background: var(--rsk-gray-bg);
    padding: 4px;
    border-radius: 6px;
}

.rsk-work-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-bottom: 25px;
}
.rsk-work-card {
    background: var(--rsk-white);
    border: 1px solid var(--rsk-border);
    border-radius: 8px;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.rsk-work-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--rsk-dark);
    margin-bottom: 4px;
}

.rsk-review-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-bottom: 25px;
}
.rsk-review-card {
    background: var(--rsk-white);
    border: 1px solid var(--rsk-border);
    border-radius: 8px;
    padding: 15px;
    display: flex;
    align-items: center;
}
.rsk-review-card img {
    width: 50px;
    height: 50px;
    object-fit: contain;
    margin-right: 15px;
    background: var(--rsk-gray-bg);
    padding: 4px;
    border-radius: 6px;
}

.rsk-badge-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 25px;
}
.rsk-badge-item {
    background: var(--rsk-white);
    border: 1px solid var(--rsk-border);
    border-radius: 6px;
    padding: 12px 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.rsk-badge-item:hover { border-color: var(--rsk-primary); }
.rsk-badge-left { display: flex; align-items: center; flex: 1; overflow: hidden; }
.rsk-badge-left img {
    width: 28px;
    height: 28px;
    object-fit: contain;
    margin-right: 10px;
    background: var(--rsk-gray-bg);
    padding: 2px;
}
.rsk-badge-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--rsk-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.rsk-brand-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
    margin-bottom: 25px;
}
.rsk-brand-card {
    background: var(--rsk-white);
    border: 1px solid var(--rsk-border);
    border-radius: 6px;
    padding: 15px 10px;
    text-align: center;
}
.rsk-brand-card img {
    max-width: 50px;
    max-height: 50px;
    object-fit: contain;
    margin: 4px auto 8px;
}
.rsk-brand-title {
    font-size: 11px;
    font-weight: 700;
    color: var(--rsk-dark);
    height: 28px;
    overflow: hidden;
    margin-bottom: 4px;
}

.rsk-catalog-box {
    background: var(--rsk-white);
    border: 1px solid var(--rsk-border);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 50px;
}
.rsk-catalog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
.rsk-catalog-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    background: var(--rsk-gray-bg);
    border-radius: 4px;
}
.rsk-catalog-item:hover { background: var(--rsk-green-light); }
.rsk-catalog-left { display: flex; align-items: center; flex: 1; overflow: hidden; }
.rsk-catalog-left img {
    width: 32px;
    height: 32px;
    object-fit: contain;
    margin-right: 10px;
    background: #fff;
    padding: 2px;
}
.rsk-catalog-title {
    font-size: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.rsk-catalog-right {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: 10px;
}

.rsk-panel-wrap {
    max-width: 980px;
    margin: 40px auto 60px;
    background: var(--rsk-white);
    border: 1px solid var(--rsk-border);
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.03);
}
.rsk-detail-layout {
    display: flex;
    flex-wrap: wrap;
    padding: 35px;
    gap: 35px;
}
.rsk-detail-media {
    flex: 0 0 340px;
    text-align: center;
    border-right: 1px solid var(--rsk-border);
    padding-right: 35px;
}
.rsk-detail-media img {
    max-width: 240px;
    max-height: 240px;
    object-fit: contain;
}
.rsk-detail-form { flex: 1; min-width: 300px; }
.rsk-detail-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--rsk-dark);
    margin-bottom: 12px;
}
.rsk-price-badge-box {
    background: var(--rsk-green-light);
    border: 1px solid #dcedc8;
    padding: 15px 20px;
    border-radius: 6px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}
.rsk-price-lg { font-size: 26px; font-weight: 800; color: var(--rsk-primary); }

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

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

.rsk-footer {
    background: #e2e8f0;
    color: #64748b;
    padding: 35px 0 25px;
    text-align: center;
    font-size: 12px;
    border-top: 3px solid var(--rsk-primary);
}
.rsk-footer-nav { margin-bottom: 12px; }
.rsk-footer-nav a { color: #334155; margin: 0 12px; font-weight: 600; }
.rsk-footer-nav a:hover { color: var(--rsk-primary); }
.rsk-copyright { color: #94a3b8; font-size: 11px; }

@media (max-width: 1024px) {
    .rsk-main-split { grid-template-columns: 1fr; }
    .rsk-badge-grid { grid-template-columns: repeat(2, 1fr); }
    .rsk-brand-grid { grid-template-columns: repeat(3, 1fr); }
    .rsk-catalog-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .rsk-hero-duos, .rsk-work-grid, .rsk-review-grid, .rsk-badge-grid { grid-template-columns: 1fr; }
    .rsk-brand-grid { grid-template-columns: repeat(2, 1fr); }
    .rsk-detail-layout { flex-direction: column; }
    .rsk-detail-media { border-right: none; border-bottom: 1px solid var(--rsk-border); padding-right: 0; padding-bottom: 25px; }
}