:root {
    --sw-bg: #f3f4f6;
    --sw-surface: #ffffff;
    --sw-primary: #dc2626;
    --sw-dark: #111827;
    --sw-gray: #4b5563;
    --sw-light-gray: #e5e7eb;
    --sw-price: #dc2626;
}
body { margin: 0; background-color: var(--sw-bg); color: var(--sw-dark); font-family: "Helvetica Neue", Arial, "PingFang SC", sans-serif; -webkit-font-smoothing: antialiased; }
.sw-header { background-color: var(--sw-surface); border-bottom: 4px solid var(--sw-dark); padding: 20px 0; }
.sw-nav-inner { max-width: 1400px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; padding: 0 24px; box-sizing: border-box; }
.sw-logo img { height: 26px; filter: grayscale(1) contrast(2); }
.sw-menu { display: flex; gap: 35px; }
.sw-menu a { text-decoration: none; color: var(--sw-gray); font-weight: 900; font-size: 13px; text-transform: uppercase; letter-spacing: 1px; transition: 0.2s; }
.sw-menu a:hover { color: var(--sw-primary); }
.sw-container { max-width: 1400px; margin: 40px auto; padding: 0 24px; box-sizing: border-box; }
.sw-notice { background: var(--sw-surface); border-left: 6px solid var(--sw-primary); padding: 18px 24px; font-size: 13px; color: var(--sw-dark); line-height: 1.6; display: flex; align-items: center; gap: 12px; }
.sw-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 12px; }
.sw-card { background-color: var(--sw-surface); border: none; border-bottom: 3px solid transparent; padding: 16px; text-decoration: none; transition: all 0.2s ease-in-out; display: flex; flex-direction: column; position: relative; }
.sw-card:hover { background-color: var(--sw-light-gray); border-bottom-color: var(--sw-primary); }
.sw-img-box { width: 100%; aspect-ratio: 1; background: #fafafa; display: flex; align-items: center; justify-content: center; margin-bottom: 12px; }
.sw-img-box img { width: 65%; height: 65%; object-fit: contain; opacity: 0.9; transition: 0.2s; }
.sw-card:hover .sw-img-box img { opacity: 1; transform: scale(1.03); }
.sw-name { font-size: 13px; font-weight: 800; color: var(--sw-dark); height: 38px; line-height: 1.4; overflow: hidden; margin-bottom: 12px; }
.sw-meta { display: flex; justify-content: space-between; align-items: center; margin-top: auto; border-top: 1px solid var(--sw-light-gray); padding-top: 10px; }
.sw-price { color: var(--sw-price); font-weight: 900; font-size: 16px; }
.sw-sell { font-size: 11px; color: var(--sw-gray); font-weight: bold; }
.sw-tag { position: absolute; top: 0; left: 0; background: var(--sw-primary); color: #fff; font-size: 9px; padding: 2px 6px; font-weight: bold; }
.sw-detail-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 32px; }
.sw-box { background: var(--sw-surface); padding: 35px; border-top: 4px solid var(--sw-dark); }
.sw-h1 { font-size: 26px; font-weight: 900; margin: 0 0 20px 0; color: var(--sw-dark); border-bottom: 1px solid var(--sw-light-gray); padding-bottom: 12px; }
.sw-input { width: 100%; height: 46px; background: var(--sw-bg); border: 2px solid var(--sw-light-gray); padding: 0 15px; font-size: 14px; box-sizing: border-box; outline: none; transition: 0.2s; margin-top: 8px; color: var(--sw-dark); font-weight: bold; }
.sw-input:focus { border-color: var(--sw-primary); background: var(--sw-surface); }
.sw-label { display: block; font-size: 12px; font-weight: 800; color: var(--sw-gray); text-transform: uppercase; }
.sw-btn { width: 100%; height: 50px; background: var(--sw-primary); color: #fff; border: none; font-size: 15px; font-weight: 900; cursor: pointer; transition: 0.2s; margin-top: 20px; text-transform: uppercase; }
.sw-btn:hover { background: var(--sw-dark); }
.sw-footer { background: var(--sw-surface); border-top: 4px solid var(--sw-dark); padding: 50px 0; margin-top: 80px; text-align: center; }
@media (max-width: 1400px) { .sw-grid { grid-template-columns: repeat(5, 1fr); } }
@media (max-width: 1000px) { .sw-grid { grid-template-columns: repeat(3, 1fr); } .sw-detail-grid { grid-template-columns: 1fr; } }
@media (max-width: 600px) { .sw-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; } }