body { background-color: #f7f7f5; color: #1e201e; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; margin: 0; padding: 0; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; }
* { box-sizing: border-box; border-radius: 0 !important; }

.sel-wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

/* 悬浮顶栏 */
.sel-header { background: #ffffff; border-bottom: 1px solid #e3e3e0; position: sticky; top: 0; z-index: 100; height: 70px; display: flex; align-items: center; }
.sel-nav-flex { display: flex; justify-content: space-between; align-items: center; width: 100%; }
.sel-logo img { height: 26px; border: 1px solid #4f6f52; padding: 2px; }

.sel-menu { list-style: none; display: flex; gap: 40px; margin: 0; padding: 0; }
.sel-menu a { font-size: 14px; color: #6b706b; font-weight: bold; transition: 0.3s; padding: 24px 0; border-bottom: 2px solid transparent; }
.sel-menu a:hover, .sel-active { color: #4f6f52 !important; border-bottom: 2px solid #4f6f52; }

.sel-user-btn { font-size: 13px; color: #f7f7f5; background: #4f6f52; padding: 8px 24px; border-radius: 8px !important; font-weight: bold; border: 1px solid #4f6f52; transition: 0.3s; }
.sel-user-btn:hover { background: transparent; color: #4f6f52; box-shadow: 0 0 15px rgba(79, 111, 82, 0.4); }

/* 系统通知条 */
.sel-notice { background: #ffffff; border: 1px solid #e3e3e0; border-left: 4px solid #4f6f52; padding: 18px 25px; margin: 30px 0; border-radius: 8px !important; display: flex; align-items: center; gap: 15px; }
.sel-notice-dot { width: 8px; height: 8px; background: #4f6f52; border-radius: 50% !important; flex-shrink: 0; }
.sel-notice-txt { font-size: 14px; color: #6b706b; line-height: 1.6; }

/* 列表标题 */
.sel-sec-title { font-size: 18px; font-weight: bold; color: #4f6f52; margin: 45px 0 20px; display: flex; align-items: center; gap: 10px; }
.sel-sec-title::before { content: "[SELENE-TAG] "; color: #4f6f52; font-weight: bold; }

/* 邮签列表流 */
.sel-list-box { display: flex; flex-direction: column; gap: 16px; margin-bottom: 60px; }
.sel-list-row { background: #ffffff; border: 1px solid #e3e3e0; padding: 20px 24px; display: flex; align-items: center; transition: 0.3s; border-radius: 12px !important; box-shadow: 4px 4px 0 rgba(79, 111, 82, 0.02); }
.sel-list-row:hover { border-color: #4f6f52; background: #fafaf8; box-shadow: 0 10px 30px rgba(79, 111, 82, 0.05); transform: translateY(-1px); }

.sel-item-img { width: 56px; height: 56px; overflow: hidden; flex-shrink: 0; margin-right: 25px; border: 1px solid #4f6f52; background: #fff; padding: 2px; border-radius: 6px !important; }
.sel-item-img img { width: 100%; height: 100%; object-fit: contain; }

.sel-item-body { flex-grow: 1; display: flex; flex-direction: column; gap: 8px; }
.sel-item-name { font-size: 16px; font-weight: bold; color: #1e201e; }
.sel-item-meta { display: flex; align-items: center; gap: 16px; font-size: 12px; font-weight: bold; color: #6b706b; }
.sel-badge-auto { color: #4f6f52; background: rgba(79, 111, 82, 0.08); padding: 2px 8px; border-radius: 4px !important; border: 1px solid rgba(79, 111, 82, 0.15); }
.sel-badge-hand { color: #6b706b; background: #faf6f0; padding: 2px 8px; border-radius: 4px !important; border: 1px solid #e3e3e0; }
.sel-item-stock { color: #8a9c8f; }

.sel-item-action { display: flex; align-items: center; gap: 35px; margin-left: 20px; }
.sel-item-price { font-size: 20px; font-weight: bold; color: #c5a059; font-family: monospace; }
.sel-btn-buy { background: transparent; color: #4f6f52; border: 1px solid #4f6f52; padding: 8px 24px; font-size: 13px; font-weight: bold; cursor: pointer; transition: 0.2s; }
.sel-list-row:hover .sel-btn-buy { background: #4f6f52; color: #faf6f0; }

/* 详情页面 */
.sel-detail-split { display: flex; gap: 40px; margin-top: 30px; align-items: flex-start; }
.sel-detail-visual { width: 45%; background: #ffffff; border: 1px solid #e3e3e0; padding: 24px; display: flex; justify-content: center; align-items: center; box-shadow: 4px 4px 0 rgba(79, 111, 82, 0.02); }
.sel-detail-visual img { width: 100%; border-radius: 8px !important; border: 1px solid #e3e3e0; }
.sel-detail-right { flex-grow: 1; background: #ffffff; padding: 40px; border: 1px solid #e3e3e0; border-radius: 12px !important; box-shadow: 5px 5px 0 #4f6f52; }

.sel-detail-h1 { font-size: 22px; font-weight: 700; color: #1e201e; margin-bottom: 25px; line-height: 1.4; }
.sel-price-ribbon { background: #faf6f0; padding: 20px 25px; margin-bottom: 30px; display: flex; align-items: baseline; gap: 15px; border-left: 4px solid #4f6f52; border-top: 1px solid #e3e3e0; border-bottom: 1px solid #e3e3e0; }
.sel-detail-price { font-size: 34px; font-weight: 700; color: #c5a059; font-family: monospace; }
.sel-detail-stock-txt { margin-left: auto; color: #6b706b; font-size: 13px; font-weight: bold; }

.sel-f-row { margin-bottom: 22px; }
.sel-f-label { display: block; font-size: 12px; font-weight: bold; color: #6b706b; margin-bottom: 10px; text-transform: uppercase; }
.sel-f-input { width: 100%; padding: 14px 16px; border: 1px solid #e3e3e0; background: #faf6f0; font-size: 14px; color: #1e201e; transition: 0.2s; outline: none; font-family: inherit; }
.sel-f-input:focus { border-color: #4f6f52; box-shadow: 0 0 10px rgba(79, 111, 82, 0.1); }
.sel-btn-submit { width: 100%; background: #4f6f52; color: #faf6f0; padding: 16px; font-size: 16px; font-weight: bold; border: none; cursor: pointer; transition: 0.2s; }
.sel-btn-submit:hover { background: #3c543e; box-shadow: 0 0 20px rgba(79, 111, 82, 0.3); }
.sel-btn-submit:disabled { background: #e3e3e0; color: #6b706b; cursor: not-allowed; box-shadow: none; }

.sel-desc-container { background: #ffffff; padding: 40px; border: 1px solid #e3e3e0; margin-top: 40px; border-radius: 12px !important; }
.sel-desc-title { font-size: 18px; font-weight: 700; color: #1e201e; margin-bottom: 25px; padding-bottom: 15px; border-bottom: 1px solid #e3e3e0; display: flex; align-items: center; gap: 10px; }
.sel-desc-title::before { content: "::"; color: #c5a059; font-weight: bold; }
.sel-desc-html { line-height: 1.8; font-size: 14px; color: #6b706b; }

.sel-footer { text-align: center; padding: 40px 0; margin-top: 60px; color: #6b706b; font-size: 13px; border-top: 1px solid #e3e3e0; background: #ffffff; }

@media (max-width: 900px) {
    .sel-detail-split { flex-direction: column; }
    .sel-detail-visual, .sel-detail-right { width: 100%; }
}
@media (max-width: 768px) {
    header ul { display: none !important; }
    tr img, div img { max-width: 100%; }
    .sel-list-row { flex-direction: column; align-items: flex-start; padding: 20px; }
    .sel-item-img { margin-bottom: 15px; margin-right: 0; }
    .sel-item-action { margin-left: 0; margin-top: 20px; width: 100%; justify-content: space-between; border-top: 1px solid #e3e3e0; padding-top: 15px; }
}\n