/* ===== 25 · 面试问题库：主题环 + 卡片流 · 紫罗兰 ===== */
.iq-page {
    --cg-accent: #6a4aa6;
    --cg-accent-2: #4f347f;
    --cg-accent-soft: #eee8f9;
    --cg-accent-ink: #ffffff;
    background:
        radial-gradient(620px 320px at 90% -90px, rgba(106, 74, 166, .11), transparent 70%),
        radial-gradient(420px 260px at 0% 20%, rgba(106, 74, 166, .045), transparent 70%),
        var(--cg-bg);
}
:root[data-theme="dark"] .iq-page {
    --cg-accent: #bda2ff;
    --cg-accent-2: #d0bcff;
    --cg-accent-soft: rgba(189, 162, 255, .14);
    --cg-accent-ink: #1a0f33;
    background: radial-gradient(620px 320px at 90% -90px, rgba(189, 162, 255, .09), transparent 70%), var(--cg-bg);
}

.iq-hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(380px, 460px); gap: 40px; align-items: start; padding: 24px 0 26px; }
.iq-lead .cg-h1 em { color: var(--cg-accent); }
.iq-ring-demo { display: flex; gap: 22px; align-items: center; margin-top: 26px; }
.iq-ring-demo .iq-ring { width: 108px; height: 108px; flex: none; }
.iq-ring-legend { display: grid; gap: 6px; font-size: 11.5px; color: var(--cg-muted); }
.iq-ring-legend span { display: inline-flex; align-items: center; gap: 7px; }
.iq-ring-legend i { width: 9px; height: 9px; border-radius: 3px; display: block; }
.iq-lead .cg-value-row { margin-top: 26px; }
.iq-console .cg-console-h { background: var(--cg-accent-2); }
.iq-input { min-height: 128px; }
.iq-threshold { margin-top: 14px; padding: 12px 14px; border: 1px solid var(--cg-line); border-radius: 10px; background: var(--cg-surface-2); }
.iq-threshold input[type="range"] { width: 100%; accent-color: var(--cg-accent); margin: 4px 0 0; }
.iq-threshold .cg-num { color: var(--cg-accent); font-size: 15px; }
.iq-kpis .cg-kpi-value { color: var(--cg-accent); }
.iq-kpis .cg-kpi--warn .cg-kpi-value { color: var(--cg-warn); }
.iq-kpis .cg-kpi--bad .cg-kpi-value { color: var(--cg-bad); }

/* 主题环 */
.iq-ring {
    width: 150px; height: 150px; border-radius: 50%; flex: none;
    background: conic-gradient(var(--cg-accent) 0 30%, var(--cg-info) 30% 55%, var(--cg-warn) 55% 78%, var(--cg-ok) 78% 92%, var(--cg-line) 92% 100%);
    display: grid; place-items: center; position: relative;
}
.iq-ring::after { content: ""; position: absolute; inset: 22px; border-radius: 50%; background: var(--cg-surface); }
.iq-ring-inner { position: relative; z-index: 1; text-align: center; font-family: var(--cg-num); font-size: 20px; font-weight: 700; color: var(--cg-ink); line-height: 1.3; }
.iq-ring-inner small { display: block; font-family: var(--cg-font); font-size: 10.5px; font-weight: 500; color: var(--cg-muted); }

.iq-top { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 16px; margin-top: 26px; align-items: start; }
.iq-dist { display: flex; gap: 24px; align-items: center; flex-wrap: wrap; }
.iq-dist-list { flex: 1; min-width: 210px; display: grid; gap: 8px; }
.iq-dist-row { display: flex; align-items: center; gap: 9px; font-size: 12.2px; }
.iq-dist-row i { width: 10px; height: 10px; border-radius: 3px; flex: none; }
.iq-dist-row b { flex: 1; color: var(--cg-ink-2); font-weight: 650; }
.iq-dist-row span { font-family: var(--cg-num); color: var(--cg-muted); }
.iq-unready, .iq-cross { display: grid; gap: 8px; max-height: 240px; overflow: auto; }
.iq-unready-row { display: flex; align-items: center; gap: 9px; padding: 8px 10px; border-radius: 8px; background: var(--cg-surface-2); font-size: 12.2px; }
.iq-unready-row b { flex: 1; }
.iq-cross-row { border-left: 3px solid var(--cg-warn); border-radius: 8px; padding: 8px 10px; background: var(--cg-surface-2); font-size: 12.2px; line-height: 1.75; }
.iq-cross-row b { color: var(--cg-ink); }
.iq-cross-row .cg-src { display: block; margin-top: 3px; }

.iq-lower { display: grid; grid-template-columns: minmax(0, 1fr) 310px; gap: 16px; margin-top: 18px; align-items: start; }
.iq-bank { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; max-height: 480px; overflow: auto; }
.iq-card {
    border: 1px solid var(--cg-line); border-radius: 11px; padding: 12px 14px;
    background: var(--cg-surface); position: relative; transition: box-shadow .16s ease;
}
.iq-card:hover { box-shadow: var(--cg-shadow); }
.iq-card::before { content: ""; position: absolute; left: 0; top: 12px; bottom: 12px; width: 3px; border-radius: 3px; background: var(--cg-accent); }
.iq-card.is-cross::before { background: var(--cg-warn); }
.iq-card.is-unready::before { background: var(--cg-bad); }
.iq-card-h { display: flex; align-items: flex-start; justify-content: space-between; gap: 8px; }
.iq-card-q { font-size: 13.2px; font-weight: 700; color: var(--cg-ink); line-height: 1.6; }
.iq-card-meta { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 8px; }
.iq-card-answer { margin-top: 8px; font-size: 12px; line-height: 1.7; color: var(--cg-muted); border-top: 1px dashed var(--cg-line); padding-top: 7px; }
.iq-card-src { margin-top: 7px; font-size: 11px; color: var(--cg-faint); font-family: var(--cg-num); }
.iq-card-variants { margin-top: 7px; font-size: 11.5px; color: var(--cg-muted); }
.iq-card-variants li { margin-top: 2px; }

@media print {
    .iq-ring-demo, .iq-console, .iq-ring { display: none !important; }
    .iq-top, .iq-lower { display: block; }
    .iq-top > .cg-card + .cg-card, .iq-lower > .cg-card + .cg-card { margin-top: 14px; }
}
@media (max-width: 1080px) {
    .iq-hero, .iq-top, .iq-lower { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
    .iq-hero { gap: 22px; padding-top: 14px; }
    .iq-bank { grid-template-columns: 1fr; }
    .iq-ring-demo { display: none; }
    .iq-dist { gap: 14px; }
}