/* ===== 21 · Offer 条款对照台：档案柜 / 表格美学 · 深青蓝 + 铜金 ===== */
.oc-page {
    --cg-accent: #12566b;
    --cg-accent-2: #0d3f50;
    --cg-accent-soft: #e3f0f3;
    --cg-accent-ink: #ffffff;
    --oc-gold: #b07b2c;
    background:
        radial-gradient(900px 380px at 82% -80px, rgba(18, 86, 107, .09), transparent 70%),
        var(--cg-bg);
}
:root[data-theme="dark"] .oc-page {
    --cg-accent: #6cc8dc;
    --cg-accent-2: #8ad9e8;
    --cg-accent-soft: rgba(108, 200, 220, .14);
    --cg-accent-ink: #062028;
    --oc-gold: #e5b166;
    background: radial-gradient(900px 380px at 82% -80px, rgba(108, 200, 220, .08), transparent 70%), var(--cg-bg);
}

/* 首屏：左信息区带巨型编号水印，右操作台上沿铜金线 */
.oc-hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(380px, 470px); gap: 40px; align-items: start; padding: 24px 0 26px; }
.oc-hero-lead { position: relative; padding: 18px 0 0 2px; }
.oc-hero-lead::before {
    content: "21"; position: absolute; right: 4px; top: -46px; z-index: 0;
    font-family: var(--cg-num); font-size: 168px; font-weight: 700; line-height: 1;
    color: var(--cg-accent); opacity: .055; letter-spacing: -.08em; pointer-events: none;
}
.oc-hero-lead > * { position: relative; z-index: 1; }
.oc-hero-lead .cg-h1 em { border-bottom: 3px solid var(--oc-gold); padding-bottom: 2px; }
.oc-hero-lead .cg-value-row { margin-top: 30px; padding-top: 22px; border-top: 1px solid var(--cg-line); }
.oc-console { border-top: 3px solid var(--oc-gold); }
.oc-console .cg-console-h { background: var(--cg-accent-2); }

/* 分段控件 */
.oc-tabs { display: flex; gap: 4px; padding: 12px 20px 0; }
.oc-tab {
    flex: 1; border: 1px solid transparent; background: transparent; color: var(--cg-muted);
    font-size: 13px; font-weight: 700; padding: 8px 10px; border-radius: 9px 9px 0 0; cursor: pointer;
    border-bottom: 2px solid var(--cg-line);
}
.oc-tab:hover { color: var(--cg-accent); }
.oc-tab.is-on { color: var(--cg-accent); background: var(--cg-accent-soft); border-color: var(--cg-line); border-bottom-color: var(--cg-accent); }

/* 已录入条目：紧凑档案条 */
.oc-source { margin-top: 18px; padding-top: 16px; border-top: 1px dashed var(--cg-line); }
.oc-source-list { max-height: 190px; overflow: auto; display: grid; gap: 6px; }
.oc-source-row {
    display: grid; grid-template-columns: minmax(90px, 1fr) minmax(80px, .9fr) minmax(0, 1.5fr) auto auto;
    gap: 8px; align-items: center; font-size: 12px; line-height: 1.55;
    padding: 7px 10px; border: 1px solid var(--cg-line-soft); border-radius: 8px; background: var(--cg-surface-2);
}
.oc-source-row b { color: var(--cg-accent); font-size: 12px; }
.oc-source-row span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--cg-ink-2); }
.oc-source-row .cg-src { color: var(--cg-faint); }
.oc-source-row button { border: 0; background: transparent; color: var(--cg-faint); cursor: pointer; font-size: 15px; line-height: 1; padding: 0 2px; }
.oc-source-row button:hover { color: var(--cg-bad); }
.oc-company-chip { display: inline-flex; align-items: center; gap: 5px; font-size: 11px; color: var(--cg-muted); background: var(--cg-surface-3); border-radius: 6px; padding: 2px 8px; margin: 0 6px 6px 0; }

/* KPI：金色数字尾标 */
.oc-kpis .cg-kpi-value { color: var(--cg-accent); }
.oc-kpis .cg-kpi--warn .cg-kpi-value { color: var(--cg-warn); }
.oc-kpis .cg-kpi--bad .cg-kpi-value { color: var(--cg-bad); }

/* 主工作区：左大矩阵 + 右窄侧栏 */
.oc-workspace { display: grid; grid-template-columns: minmax(0, 1fr) 310px; gap: 16px; margin-top: 26px; align-items: start; }
.oc-matrix-card { min-width: 0; }
.oc-legend { padding: 12px 20px 0; }
.oc-side { display: grid; gap: 14px; }
.oc-side .cg-card + .cg-card { margin-top: 0; }

/* 矩阵表：粘性首列 + 彩色列头 + 斜纹缺失格 */
.oc-table { min-width: 660px; }
.oc-table thead th { background: var(--cg-surface-2); vertical-align: bottom; }
.oc-table thead th:first-child { position: sticky; left: 0; z-index: 3; min-width: 132px; background: var(--cg-surface-2); }
.oc-table th.oc-col-head { border-top: 3px solid var(--cg-accent); min-width: 168px; }
.oc-table th.oc-col-head small { display: block; font-weight: 500; letter-spacing: 0; color: var(--cg-faint); font-size: 10.5px; margin-top: 3px; }
.oc-table tbody td:first-child { position: sticky; left: 0; z-index: 1; background: var(--cg-surface); font-weight: 700; color: var(--cg-ink); border-right: 1px solid var(--cg-line); }
.oc-table tbody tr:nth-child(even) td:first-child { background: var(--cg-surface-2); }
.oc-table tbody tr:hover td:first-child { background: var(--cg-accent-soft); }
.oc-cell { min-width: 150px; }
.oc-cell-v { font-size: 12.8px; line-height: 1.6; color: var(--cg-ink); word-break: break-word; }
.oc-cell-meta { margin-top: 4px; display: flex; gap: 5px; flex-wrap: wrap; align-items: center; }
.oc-cell--diff { border-left: 2px solid var(--cg-warn); padding-left: 9px; }
.oc-cell--same .oc-cell-v { color: var(--cg-ink-2); }
.oc-cell--missing {
    background: repeating-linear-gradient(135deg, transparent 0 6px, var(--cg-line-soft) 6px 12px);
    border: 1px dashed var(--cg-line); border-radius: 7px; padding: 7px 9px;
}
.oc-cell--missing .oc-cell-v { color: var(--cg-faint); font-style: italic; }
.oc-cell--scale { border-left: 2px solid var(--cg-bad); padding-left: 9px; }
.oc-row-flag { font-size: 10.5px; font-weight: 700; color: var(--cg-muted); display: block; margin-top: 3px; }
.oc-table tr.is-diff td:first-child { box-shadow: inset 3px 0 0 var(--cg-warn); }
.oc-table tr.is-scale td:first-child { box-shadow: inset 3px 0 0 var(--cg-bad); }

/* 侧栏清单 */
.oc-asks, .oc-issues { display: grid; gap: 8px; max-height: 320px; overflow: auto; }
.oc-ask {
    border: 1px solid var(--cg-line-soft); border-left: 3px solid var(--cg-accent);
    border-radius: 8px; padding: 9px 11px; background: var(--cg-surface-2);
    font-size: 12.2px; line-height: 1.75; color: var(--cg-ink-2);
}
.oc-ask b { color: var(--cg-ink); }
.oc-ask .cg-src { display: block; margin-top: 4px; }
.oc-ask--warn { border-left-color: var(--cg-warn); }
.oc-ask--bad { border-left-color: var(--cg-bad); }
.oc-issue { font-size: 12px; line-height: 1.7; padding: 7px 9px; border-radius: 7px; background: var(--cg-surface-2); color: var(--cg-ink-2); }
.oc-issue b { color: var(--cg-ink); }

/* 规则表：等宽双列 */
.oc-rules { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 20px; font-size: 12px; line-height: 1.75; }
.oc-rule { display: flex; gap: 8px; align-items: baseline; border-bottom: 1px dotted var(--cg-line); padding-bottom: 5px; }
.oc-rule b { color: var(--cg-accent); min-width: 76px; font-weight: 700; }
.oc-rule span { color: var(--cg-muted); font-family: var(--cg-num); font-size: 11.5px; }

/* 打印对照单 */
@media print {
    .oc-workspace { display: block; }
    .oc-side, .oc-legend, .oc-rules, .oc-hero, .oc-kpis { display: none !important; }
    .oc-table { min-width: 0; font-size: 9pt; }
    .oc-table thead th:first-child, .oc-table tbody td:first-child { position: static; }
    .oc-matrix-card::before { content: "多份 Offer 条款差异矩阵 · 打印版对照单"; display: block; padding: 10px; font-size: 14pt; font-weight: 700; }
}

@media (max-width: 1080px) {
    .oc-hero, .oc-workspace { grid-template-columns: 1fr; }
    .oc-hero-lead::before { font-size: 110px; top: -20px; }
    .oc-side { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
    .oc-hero { gap: 22px; padding-top: 14px; }
    .oc-hero-lead::before { display: none; }
    .oc-side, .oc-rules { grid-template-columns: 1fr; }
    .oc-source-row { grid-template-columns: 1fr 1fr auto; }
    .oc-source-row span:nth-child(3) { grid-column: 1 / -1; }
    .oc-workspace { margin-top: 18px; }
}