/* ================================================================
   菜刀客在线工具页 · yuanzhuitiji.html 私有样式
   需在 /css/common.css 之后加载。
   ================================================================ */

/* 本页为标准计算器布局（400px 1fr），无需特殊覆盖。
   如有独特样式需求在此补充。 */

.panel .result-body {
    padding: 0;
}

/* ── 知识文章美化 ──────────────────────────────────── */

.panel.extra-panel .seo-article {
    padding: 20px;
    line-height: 1.85;
    color: #3f4857;
}

.panel.extra-panel .seo-article h2 {
    font-size: 16px;
    font-weight: 600;
    color: #1f2937;
    margin: 22px 0 10px;
    padding-left: 12px;
    border-left: 4px solid #3b82f6;
    line-height: 1.4;
}

.panel.extra-panel .seo-article h2:first-child {
    margin-top: 0;
}

.panel.extra-panel .seo-article p {
    font-size: 14px;
    line-height: 1.9;
    color: #4b5563;
    text-align: justify;
    margin: 8px 0;
}

.panel.extra-panel .seo-article code {
    background: #eef2ff;
    color: #4338ca;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 13px;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

.panel.extra-panel .seo-article b {
    color: #1e3a5f;
}

/* ── 圆锥体积推导 ─────────────────────────────────── */

.cone-illustration {
    float: right;
    margin: 4px 0 12px 20px;
    background: linear-gradient(145deg, #f8faff, #eef4ff);
    border: 1px solid #dbe6ff;
    border-radius: 12px;
    padding: 8px;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.08);
}

.cone-illustration svg {
    display: block;
}

.seo-article .derive-title {
    font-size: 15px;
    font-weight: 600;
    color: #1f2937;
    margin: 20px 0 8px;
    padding: 8px 12px;
    background: #f3f6fb;
    border-radius: 8px;
    border: 1px dashed #cbd9f0;
}

.formula-box {
    margin: 10px 0;
    padding: 12px 16px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-left: 4px solid #3b82f6;
    border-radius: 8px;
    font-size: 15px;
    line-height: 2;
    color: #1f2937;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    overflow-x: auto;
    white-space: normal;
    word-break: break-word;
}

.formula-box b {
    color: #2563eb;
}

@media (max-width: 560px) {
    .cone-illustration {
        float: none;
        display: block;
        margin: 10px auto 14px;
    }
}