:root {
    --pit-bg: #121620;
    --pit-card-bg: #090c12;
    --pit-border: rgba(255, 0, 60, 0.25);
    --pit-border-hover: rgba(255, 0, 60, 0.85);
    --pit-text: #f0f3f8;
    --pit-sub: #5a667a;
    --pit-accent: #ff003c;
    --pit-font: 'Impact', 'Arial Black', system-ui, sans-serif;
}

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

.pit-header {
    position: fixed; top: 0; width: 100%; height: 56px;
    background: rgba(18, 22, 32, 0.95); backdrop-filter: blur(8px);
    z-index: 2000; border-bottom: 3px solid var(--pit-border);
}

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

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

/* 留白通告 */
.pit-notice-bar { margin: 80px auto 20px; max-width: 1200px; padding: 0 20px; }
.pit-notice-inner { border: 3px solid var(--pit-border); padding: 12px 24px; background: var(--pit-card-bg); display: flex; align-items: center; }
.pit-notice-dot { width: 6px; height: 6px; background: var(--pit-accent); border-radius: 50%; margin-right: 12px; }

/* 页脚 */
.pit-footer { padding: 40px 0; background: #07090d; border-top: 3px solid var(--pit-border); margin-top: 60px; }
.pit-footer-inner { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.pit-copyright { font-size: 11px; color: var(--pit-sub); display: flex; align-items: center; }
.pit-status-indicator { width: 6px; height: 6px; background: var(--pit-accent); border-radius: 50%; margin-right: 10px; }

/* 布局 691: 顶视网膜对焦公告 ➡️ 垂直单列全息极光扫描行（带视网膜校准指标） */
.pit-home-wrap { max-width: 800px; margin: 40px auto; padding: 0 20px; min-height: 80vh; }

/* 顶视网膜对焦公告 */
.pit-focus-notice {
    background: var(--pit-card-bg); border: 3px solid var(--pit-border);
    padding: 30px; margin-bottom: 45px; text-align: center; position: relative;
}
.pit-focus-subtitle { font-size: 12px; color: var(--pit-sub); letter-spacing: 1px; }

.pit-cat-hd { font-size: 14px; font-weight: bold; color: var(--pit-text); margin: 40px 0 25px; display: flex; align-items: center; }
.pit-cat-hd::after { content: ""; flex: 1; height: 3px; background: var(--pit-border); margin-left: 20px; }
.pit-cat-hd::before { content: "▲ "; color: var(--pit-accent); margin-right: 8px; }

.pit-scan-stack { display: flex; flex-direction: column; gap: 24px; }

/* 垂直单列卡（带视网膜校准指标） */
.pit-card-calibration {
    display: block; background: var(--pit-card-bg); text-decoration: none; transition: 0.3s;
    padding: 24px; position: relative; border: 3px solid var(--pit-border);
}
.pit-card-calibration:hover { border-color: var(--pit-border-hover); box-shadow: 0 0 20px rgba(255, 0, 60, 0.25); }
.pit-card-calibration:hover .pit-name { color: var(--pit-accent); }

/* 视网膜校准刻度线（高科技细节） */
.pit-reticle-indicator {
    position: absolute; top: 10px; left: 10px; font-size: 9px; color: var(--pit-accent);
    font-family: monospace; border-left: 1px solid var(--pit-accent); border-top: 1px solid var(--pit-accent);
    padding: 2px 5px;
}

.pit-img-box { width: 100%; aspect-ratio: 2.2; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; background: #07090d; }
.pit-img-box img { width: 35%; height: 35%; object-fit: contain; }
.pit-name { font-size: 14px; height: 38px; color: var(--pit-text); line-height: 1.5; overflow: hidden; margin-bottom: 15px; }
.pit-footer-meta { display: flex; justify-content: space-between; align-items: center; }
.pit-price { font-size: 16px; font-weight: bold; color: var(--pit-accent); }
.pit-sell-count { font-size: 11px; color: var(--pit-sub); }
.pit-tag-auto { position: absolute; top: 12px; right: 15px; font-size: 9px; color: var(--pit-accent); border: 1px solid var(--pit-accent); padding: 1px 6px; }

/* Detail Pages */
.pit-trade-wrap { padding: 40px 10px; min-height: 80vh; }
.pit-trade-node { max-width: 900px; margin: 0 auto; border: 3px solid var(--pit-border); display: flex; flex-wrap: wrap; background: var(--pit-card-bg); }
.pit-media-side { flex: 0 0 32%; background: #07090d; padding: 30px; display: flex; align-items: center; border-right: 3px solid var(--pit-border); }
.pit-media-side img { width: 100%; height: auto; }
.pit-form-side { flex: 1; padding: 40px; min-width: 320px; }
.pit-title { font-size: 22px; font-weight: 700; color: var(--pit-text); margin-bottom: 10px; }
.pit-tag-status { display: inline-block; padding: 3px 12px; border: 1px solid var(--pit-accent); color: var(--pit-accent); font-size: 11px; background: rgba(255, 0, 60, 0.1); margin-bottom: 25px; }
.pit-price-node { margin-bottom: 30px; padding: 20px; background: var(--pit-bg); border: 3px solid var(--pit-border); display: flex; justify-content: space-between; align-items: center; }
.pit-price-val { font-size: 26px; font-weight: 800; color: var(--pit-accent); }
.pit-field { margin-bottom: 20px; }
.pit-label { display: block; font-size: 11px; color: var(--pit-sub); margin-bottom: 8px; }
.pit-input { width: 100%; height: 44px; background: var(--pit-bg); border: 3px solid var(--pit-border); color: var(--pit-text); padding: 0 20px; box-sizing: border-box; outline: none; }
.pit-input:focus { border-color: var(--pit-accent); }
.pit-btn-submit { width: 100%; height: 48px; background: var(--pit-accent); color: #fff; border: none; cursor: pointer; font-size: 14px; font-weight: 700; transition: 0.3s; }
.pit-btn-submit:hover { opacity: 0.8; }
.pit-btn-submit:disabled { background: #32161b; color: #6a4449; border: 1px solid var(--pit-border); cursor: not-allowed; }
.pit-desc-box { max-width: 900px; margin: 20px auto 0; border: 3px solid var(--pit-border); padding: 30px; background: var(--pit-card-bg); color: var(--pit-sub); }
.pit-desc-title { font-size: 12px; font-weight: 700; color: var(--pit-text); margin-bottom: 15px; border-left: 2px solid var(--pit-accent); padding-left: 10px; }

/* Queries & Lists */
.pit-query-wrap { max-width: 520px; margin: 80px auto; padding: 0 20px; min-height: 70vh; }
.pit-query-node { background: var(--pit-card-bg); border: 3px solid var(--pit-border); padding: 30px; margin-bottom: 20px; }
.pit-btn-prime { background: var(--pit-accent); color: #fff; border: none; padding: 12px 30px; font-weight: 700; font-size: 13px; cursor: pointer; width: 100%; }

@media (max-width: 768px) {
    .pit-card-calibration { width: 100%; }
    .pit-focus-notice { display: none; }
    .pit-header { position: relative; }
    .pit-nav { position: fixed; top: 56px; left: -100%; width: 100%; height: 100vh; background: var(--pit-bg); flex-direction: column; padding: 40px; transition: 0.3s; gap: 30px; }
    .pit-nav.is-open { left: 0; }
    .pit-m-trigger { display: block; }
}