:root {
    --och-bg: #faf6e8;
    --och-card-bg: #ffffff;
    --och-border: #222222;
    --och-text: #222222;
    --och-sub: #7a6e5d;
    --och-accent: #d9a041;
    --och-font: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

body {
    margin: 0; background: var(--och-bg); color: var(--och-text);
    font-family: var(--och-font); font-size: 13px; -webkit-font-smoothing: antialiased;
}

.och-header {
    position: fixed; top: 0; width: 100%; height: 56px;
    background: rgba(250, 246, 232, 0.95); backdrop-filter: blur(8px);
    z-index: 2000; border-bottom: 2px solid var(--och-border);
}

.och-inner {
    max-width: 1200px; margin: 0 auto; height: 100%;
    display: flex; align-items: center; justify-content: space-between; padding: 0 20px;
}

.och-logo-nav { display: flex; align-items: center; gap: 30px; }
.och-logo img { height: 20px; }
.och-nav { display: flex; list-style: none; gap: 24px; margin: 0; padding: 0; }
.och-nav a { color: var(--och-sub); text-decoration: none; font-weight: bold; }
.och-nav a:hover, .och-nav a.active { color: var(--och-accent); }
.och-user-zone { display: flex; align-items: center; gap: 16px; }
.och-btn-login { background: var(--och-accent); color: #000; padding: 6px 16px; border: 2px solid var(--och-border); text-decoration: none; font-size: 11px; font-weight: bold; }
.och-avatar { width: 26px; height: 26px; border-radius: 50%; border: 1px solid var(--och-border); }
.och-m-trigger { display: none; color: var(--och-text); font-size: 20px; cursor: pointer; }

/* 留白通告 */
.och-notice-bar { margin: 80px auto 20px; max-width: 1200px; padding: 0 20px; }
.och-notice-inner { border: 2px solid var(--och-border); padding: 12px 24px; background: var(--och-card-bg); display: flex; align-items: center; }
.och-notice-dot { width: 6px; height: 6px; background: var(--och-accent); border-radius: 50%; margin-right: 12px; }

/* 页脚 */
.och-footer { padding: 40px 0; background: #ebdcb0; border-top: 2px solid var(--och-border); margin-top: 60px; }
.och-footer-inner { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.och-copyright { font-size: 11px; color: var(--och-sub); display: flex; align-items: center; }
.och-status-indicator { width: 6px; height: 6px; background: var(--och-accent); border-radius: 50%; margin-right: 10px; }

/* 布局 667: 左右50/50对开 ➡️ 左标尺通告 ➡️ 右双通道卡尺精密标定商品 */
.och-home-wrap { max-width: 1200px; margin: 40px auto; padding: 0 20px; min-height: 80vh; }
.och-split-half { display: flex; gap: 40px; }

/* 左标尺通告 */
.och-left-panel {
    flex: 1; background: var(--och-card-bg); border: 2px solid var(--och-border);
    padding: 30px; position: sticky; top: 100px; height: fit-content;
    /* 卡尺滑槽精密双线标定 */
    border-right: 4px double var(--och-accent);
}
.och-panel-title { font-size: 13px; font-weight: bold; color: var(--och-accent); margin-bottom: 20px; text-transform: uppercase; }
.och-panel-line { height: 1px; background: var(--och-border); margin: 15px 0; }

/* 右双通道精密标定商品 */
.och-right-panel { flex: 1; }

.och-cat-hd { font-size: 14px; font-weight: bold; color: var(--och-text); margin: 0 0 25px; display: flex; align-items: center; }
.och-cat-hd::after { content: ""; flex: 1; height: 1px; background: var(--och-border); margin-left: 20px; }
.och-cat-hd::before { content: "▲ "; color: var(--och-accent); margin-right: 8px; }

.och-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }

/* 直角极简精密标定卡片 */
.och-card-probe {
    display: block; background: var(--och-card-bg); text-decoration: none; transition: 0.2s;
    padding: 20px; position: relative; border: 1px solid var(--och-border);
}
.och-card-probe:hover {
    border-color: var(--och-accent); transform: translate(-2px, -2px);
    box-shadow: 4px 4px 0 var(--och-border);
}
.och-card-probe:hover .och-name { color: var(--och-accent); }

.och-img-box { width: 100%; aspect-ratio: 1.8; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; background: var(--och-bg); border: 1px solid var(--och-border); }
.och-img-box img { width: 45%; height: 45%; object-fit: contain; }
.och-name { font-size: 14px; height: 38px; color: var(--och-text); line-height: 1.5; overflow: hidden; margin-bottom: 15px; }
.och-footer-meta { display: flex; justify-content: space-between; align-items: center; }
.och-price { font-size: 16px; font-weight: bold; color: var(--och-accent); }
.och-sell-count { font-size: 11px; color: var(--och-sub); }
.och-tag-auto { position: absolute; top: 12px; right: 15px; font-size: 9px; color: var(--och-accent); border: 1px solid var(--och-border); padding: 1px 6px; }

/* Detail Pages */
.och-trade-wrap { padding: 40px 10px; min-height: 80vh; }
.och-trade-node { max-width: 900px; margin: 0 auto; border: 2px solid var(--och-border); display: flex; flex-wrap: wrap; background: var(--och-card-bg); }
.och-media-side { flex: 0 0 32%; background: var(--och-bg); padding: 30px; display: flex; align-items: center; border-right: 1px solid var(--och-border); }
.och-media-side img { width: 100%; height: auto; }
.och-form-side { flex: 1; padding: 40px; min-width: 320px; }
.och-title { font-size: 22px; font-weight: 700; color: var(--och-text); margin-bottom: 10px; }
.och-tag-status { display: inline-block; padding: 3px 12px; border: 1px solid var(--och-border); color: #000; background: var(--och-accent); font-size: 11px; margin-bottom: 25px; }
.och-price-node { margin-bottom: 30px; padding: 20px; background: var(--och-bg); border: 2px solid var(--och-border); display: flex; justify-content: space-between; align-items: center; }
.och-price-val { font-size: 26px; font-weight: 800; color: var(--och-accent); }
.och-field { margin-bottom: 20px; }
.och-label { display: block; font-size: 11px; color: var(--och-sub); margin-bottom: 8px; }
.och-input { width: 100%; height: 44px; background: var(--och-bg); border: 1px solid var(--och-border); color: var(--och-text); padding: 0 20px; box-sizing: border-box; outline: none; }
.och-input:focus { border-color: var(--och-accent); }
.och-btn-submit { width: 100%; height: 48px; background: var(--och-accent); color: #000; border: 2px solid var(--och-border); cursor: pointer; font-size: 14px; font-weight: 700; transition: 0.3s; }
.och-btn-submit:hover { opacity: 0.8; }
.och-btn-submit:disabled { background: #5a4f3b; color: #a59378; border: 2px solid var(--och-border); cursor: not-allowed; }
.och-desc-box { max-width: 900px; margin: 20px auto 0; border: 1px solid var(--och-border); padding: 30px; background: var(--och-card-bg); color: var(--och-sub); }
.och-desc-title { font-size: 12px; font-weight: 700; color: var(--och-text); margin-bottom: 15px; border-left: 2px solid var(--och-accent); padding-left: 10px; }

/* Queries & Lists */
.och-query-wrap { max-width: 520px; margin: 80px auto; padding: 0 20px; min-height: 70vh; }
.och-query-node { background: var(--och-card-bg); border: 2px solid var(--och-border); padding: 30px; margin-bottom: 20px; }
.och-btn-prime { background: var(--och-accent); color: #000; border: 2px solid var(--och-border); padding: 12px 30px; font-weight: 700; font-size: 13px; cursor: pointer; width: 100%; }

@media (max-width: 768px) {
    .och-split-half { flex-direction: column-reverse; }
    .och-left-panel { width: 100%; position: relative; top: 0; border-right: 2px solid var(--och-border); border-bottom: 4px double var(--och-accent); }
    .och-grid-2 { grid-template-columns: repeat(2, 1fr); }
    .och-header { position: relative; }
    .och-nav { position: fixed; top: 56px; left: -100%; width: 100%; height: 100vh; background: var(--och-bg); flex-direction: column; padding: 40px; transition: 0.3s; gap: 30px; }
    .och-nav.is-open { left: 0; }
    .och-m-trigger { display: block; }
}