:root {
    --sym-primary: #00b894;
    --sym-primary-dark: #00a884;
    --sym-primary-deep: #10ac84;
    --sym-dark: #2d3436;
    --sym-dark-deep: #1e272e;
    --sym-gray-bg: #f8f9fa;
    --sym-border: #dfe6e9;
    --sym-text: #2d3436;
    --sym-text-muted: #636e72;
    --sym-white: #ffffff;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    background-color: #f1f2f6;
    color: var(--sym-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(--sym-primary); }

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

.sym-header {
    background: var(--sym-dark-deep);
    border-bottom: 1px solid #2f3542;
}
.sym-header-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
}
.sym-logo img { height: 36px; max-width: 180px; object-fit: contain; }

.sym-search-box {
    display: flex;
    align-items: center;
    border: 1px solid #485460;
    border-radius: 20px;
    padding: 4px 15px;
    background: #2d3436;
    width: 300px;
}
.sym-search-box input {
    border: none;
    background: transparent;
    outline: none;
    font-size: 12px;
    width: 100%;
    color: #fff;
}

.sym-nav-bar {
    background: var(--sym-primary);
    color: var(--sym-white);
}
.sym-nav-list {
    display: flex;
    list-style: none;
    align-items: center;
    overflow-x: auto;
    white-space: nowrap;
}
.sym-nav-list li a {
    display: block;
    padding: 12px 20px;
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
}
.sym-nav-list li a:hover, .sym-nav-list li.active a {
    background: rgba(0, 0, 0, 0.15);
}

.sym-notice-bar {
    background: #e6fff9;
    border-bottom: 1px solid #b3ffec;
    padding: 10px 0;
    color: var(--sym-primary-deep);
    font-size: 12px;
}

.sym-sec-title {
    text-align: center;
    margin: 40px 0 25px;
}
.sym-sec-title h2 {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--sym-dark);
}
.sym-sec-title p {
    font-size: 12px;
    color: var(--sym-text-muted);
    margin-top: 4px;
}

.sym-hero-duos {
    margin: 25px 0 35px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}
.sym-hero-card {
    background: var(--sym-dark);
    border-radius: 6px;
    padding: 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #fff;
    border-left: 4px solid var(--sym-primary);
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}
.sym-hero-info { flex: 1; padding-right: 15px; }
.sym-hero-badge {
    display: inline-block;
    background: var(--sym-primary);
    color: #fff;
    font-size: 10px;
    padding: 2px 8px;
    border-radius: 2px;
    margin-bottom: 8px;
    font-weight: 700;
}
.sym-hero-name {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.sym-hero-price { font-size: 20px; font-weight: 800; color: var(--sym-primary); }
.sym-hero-img {
    width: 85px;
    height: 85px;
    object-fit: contain;
    background: #fff;
    padding: 6px;
    border-radius: 4px;
}

.sym-slider-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 35px;
}
.sym-slider-card {
    background: var(--sym-white);
    border: 1px solid var(--sym-border);
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.02);
}
.sym-slider-body {
    padding: 15px;
    display: flex;
    align-items: center;
}
.sym-slider-body img {
    width: 65px;
    height: 65px;
    object-fit: contain;
    margin-right: 15px;
    background: var(--sym-gray-bg);
    padding: 4px;
    border-radius: 4px;
}
.sym-slider-info { flex: 1; overflow: hidden; }
.sym-slider-name {
    font-size: 13px;
    font-weight: 700;
    color: var(--sym-dark);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.sym-slider-foot {
    background: var(--sym-dark);
    color: #fff;
    padding: 10px 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
}

.sym-page-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    margin-bottom: 40px;
}
.sym-page-card {
    background: var(--sym-white);
    border: 1px solid var(--sym-border);
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.02);
}
.sym-page-thumb {
    width: 100%;
    height: 85px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--sym-gray-bg);
    padding: 10px;
}
.sym-page-thumb img {
    max-width: 75px;
    max-height: 75px;
    object-fit: contain;
}
.sym-page-foot {
    background: var(--sym-dark);
    color: #fff;
    padding: 10px;
    text-align: center;
}
.sym-page-title {
    font-size: 12px;
    font-weight: 600;
    color: #fff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 4px;
}

.sym-badge-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    margin-bottom: 40px;
}
.sym-badge-card {
    background: var(--sym-white);
    border: 1px solid var(--sym-border);
    border-radius: 6px;
    padding: 15px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.02);
}
.sym-badge-card img {
    width: 48px;
    height: 48px;
    object-fit: contain;
    margin: 0 auto 8px;
    background: var(--sym-gray-bg);
    padding: 4px;
    border-radius: 6px;
}
.sym-badge-name {
    font-size: 12px;
    font-weight: 700;
    color: var(--sym-dark);
    height: 32px;
    overflow: hidden;
    margin-bottom: 4px;
}
.sym-badge-price {
    font-size: 13px;
    font-weight: 800;
    color: var(--sym-primary-deep);
}

.sym-grid-5 {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 15px;
    margin-bottom: 40px;
}
.sym-card-5 {
    background: var(--sym-white);
    border: 1px solid var(--sym-border);
    border-radius: 6px;
    padding: 15px 12px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    box-shadow: 0 2px 8px rgba(0,0,0,0.02);
}
.sym-card-5:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0,184,148,0.1);
}
.sym-card-thumb {
    width: 100%;
    height: 85px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 8px 0;
}
.sym-card-thumb img {
    max-width: 75px;
    max-height: 75px;
    object-fit: contain;
}
.sym-card-title {
    font-size: 12px;
    color: var(--sym-dark);
    height: 34px;
    line-height: 1.4;
    overflow: hidden;
    text-align: center;
    font-weight: 600;
    margin-bottom: 6px;
}
.sym-card-foot { text-align: center; }
.sym-card-price {
    font-size: 14px;
    font-weight: 800;
    color: var(--sym-primary-deep);
    display: block;
    margin-bottom: 6px;
}
.sym-btn-buy {
    display: block;
    background: var(--sym-dark);
    color: #fff;
    padding: 4px 0;
    font-size: 11px;
    border-radius: 3px;
    text-align: center;
    font-weight: 600;
}
.sym-btn-buy:hover { background: var(--sym-primary); color: #fff; }

.sym-catalog-box {
    background: var(--sym-white);
    border: 1px solid var(--sym-border);
    border-radius: 6px;
    padding: 20px;
    margin-bottom: 50px;
}
.sym-catalog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
.sym-catalog-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    background: var(--sym-gray-bg);
    border-radius: 4px;
}
.sym-catalog-item:hover { background: #e9ecef; }
.sym-catalog-left { display: flex; align-items: center; flex: 1; overflow: hidden; }
.sym-catalog-left img {
    width: 32px;
    height: 32px;
    object-fit: contain;
    margin-right: 10px;
    background: #fff;
    padding: 2px;
}
.sym-catalog-title {
    font-size: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.sym-catalog-right {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: 10px;
}

.sym-panel-wrap {
    max-width: 980px;
    margin: 40px auto 60px;
    background: var(--sym-white);
    border: 1px solid var(--sym-border);
    border-radius: 6px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.03);
}
.sym-detail-layout {
    display: flex;
    flex-wrap: wrap;
    padding: 35px;
    gap: 35px;
}
.sym-detail-media {
    flex: 0 0 340px;
    text-align: center;
    border-right: 1px solid var(--sym-border);
    padding-right: 35px;
}
.sym-detail-media img {
    max-width: 240px;
    max-height: 240px;
    object-fit: contain;
}
.sym-detail-form { flex: 1; min-width: 300px; }
.sym-detail-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--sym-dark);
    margin-bottom: 12px;
}
.sym-price-badge-box {
    background: #e6fff9;
    border: 1px solid #b3ffec;
    padding: 15px 20px;
    border-radius: 6px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}
.sym-price-lg { font-size: 26px; font-weight: 800; color: var(--sym-primary-deep); }

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

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

.sym-footer {
    background: var(--sym-dark-deep);
    color: #a4b0be;
    padding: 35px 0 25px;
    text-align: center;
    font-size: 12px;
    border-top: 3px solid var(--sym-primary);
}
.sym-footer-nav { margin-bottom: 12px; }
.sym-footer-nav a { color: #dfe4ea; margin: 0 12px; }
.sym-footer-nav a:hover { color: var(--sym-primary); }
.sym-copyright { color: #747d8c; font-size: 11px; }

@media (max-width: 1024px) {
    .sym-page-grid, .sym-badge-grid { grid-template-columns: repeat(2, 1fr); }
    .sym-grid-5 { grid-template-columns: repeat(3, 1fr); }
    .sym-catalog-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .sym-hero-duos, .sym-slider-grid, .sym-page-grid, .sym-badge-grid { grid-template-columns: 1fr; }
    .sym-grid-5 { grid-template-columns: repeat(2, 1fr); }
    .sym-detail-layout { flex-direction: column; }
    .sym-detail-media { border-right: none; border-bottom: 1px solid var(--sym-border); padding-right: 0; padding-bottom: 25px; }
}