/* ===== 产品经理案例库 · 系列样式 =====
   基础令牌、页头页脚等来自 ../style.css，这里只写本系列特有的排版。 */

/* ===== 骨架 ===== */
.kc-main {
    padding-top: 72px; /* 与全站一致：面包屑距顶 104（列表）/ 144（详情） */
}

.kc-crumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: #9a9a9a;
    margin-bottom: 40px;
}

.kc-crumb a {
    color: #6b6b6b;
}

.kc-crumb a:hover {
    color: #000;
}

/* ===== 列表页头部 ===== */
.kc-hero {
    padding: 32px 0 48px;
}

.kc-eyebrow {
    font-family: var(--font-num);
    font-size: 12px;
    letter-spacing: 0.16em;
    color: #9a9a9a;
    margin: 0 0 16px;
}

.kc-hero-title {
    font-family: var(--font-display);
    font-size: clamp(40px, 6vw, 64px);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: 0.02em;
    color: #000;
    margin: 0 0 20px;
}

.kc-hero-sub {
    font-size: 17px;
    line-height: 1.85;
    color: #4a4a4a;
    max-width: 700px;
    margin: 0 0 32px;
}

.kc-hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 40px;
    font-size: 13px;
    letter-spacing: 0.04em;
    color: #6b6b6b;
}

.kc-hero-meta strong {
    font-family: var(--font-num);
    font-size: 20px;
    font-weight: 400;
    color: #000;
    margin-right: 4px;
}

/* ===== 列表页：左侧分类 + 右侧卡片 ===== */
.kc-list {
    padding: 0 0 96px;
}

.kc-layout {
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
}

/* 左侧栏（随滚动吸顶） */
.kc-side {
    position: sticky;
    top: 92px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.kc-search input {
    width: 100%;
    padding: 10px 16px;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.12);
    border-radius: 999px;
    font-family: inherit;
    font-size: 14px;
    color: #1a1a1a;
    outline: none;
    transition: border-color 0.18s ease;
}

.kc-search input:focus {
    border-color: #000;
}

.kc-cats {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.kc-cat {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    width: 100%;
    padding: 10px 14px;
    text-align: left;
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 14.5px;
    color: #6b6b6b;
    cursor: pointer;
    transition: background 0.18s ease, color 0.18s ease;
}

.kc-cat b {
    font-family: var(--font-num);
    font-size: 12px;
    font-weight: 400;
    color: #b0b0b0;
}

.kc-cat:hover {
    background: rgba(0, 0, 0, 0.045);
    color: #000;
}

.kc-cat.active {
    background: #000;
    color: #fff;
}

.kc-cat.active b {
    color: rgba(255, 255, 255, 0.6);
}

.kc-side-tip {
    font-size: 12px;
    line-height: 1.7;
    color: #b0b0b0;
    margin: 0;
    padding: 0 14px;
}

/* 右侧内容 */
.kc-content {
    min-width: 0;
}

.kc-content-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 18px;
    margin-bottom: 28px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.kc-content-title {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: #000;
    margin: 0;
}

.kc-count {
    font-family: var(--font-num);
    font-size: 12px;
    letter-spacing: 0.04em;
    color: #9a9a9a;
    white-space: nowrap;
}

/* ===== 卡片 ===== */
.kc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.kc-card {
    display: flex;
    flex-direction: column;
    padding: 28px 26px;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-md);
    transition: border-color 0.22s ease, transform 0.22s ease, box-shadow 0.22s ease;
}

/* 分类/检索筛选靠 hidden 属性隐藏卡片；
   这里显式补一条，否则作者样式的 display:flex 会盖过 UA 的 [hidden]{display:none} */
.kc-card[hidden] {
    display: none;
}

.kc-card:hover {
    border-color: #000;
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.07);
}

.kc-card-cat {
    font-family: var(--font-num);
    font-size: 12px;
    letter-spacing: 0.08em;
    color: #9a9a9a;
    margin-bottom: 12px;
}

.kc-card-title {
    font-family: var(--font-display);
    font-size: 19px;
    font-weight: 600;
    line-height: 1.45;
    letter-spacing: 0.02em;
    color: #000;
    margin: 0 0 10px;
}

.kc-card-intro {
    font-size: 14px;
    line-height: 1.75;
    color: #6b6b6b;
    margin: 0;
}

/* 速查索引：唯一的黑卡，作为「不知道从哪下手」的入口 */
.kc-card-guide {
    background: #000;
    border-color: #000;
}

.kc-card-guide .kc-card-cat {
    color: rgba(255, 255, 255, 0.55);
}

.kc-card-guide .kc-card-title {
    color: #fff;
}

.kc-card-guide .kc-card-intro {
    color: rgba(255, 255, 255, 0.72);
}

.kc-card-guide:hover {
    border-color: #000;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
}

.kc-empty {
    text-align: center;
    font-size: 15px;
    color: #6b6b6b;
    padding: 56px 0 0;
}

/* ===== 详情页 ===== */
.kc-issue {
    padding: 72px 0;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.kc-issue-head {
    max-width: 760px;
}

.kc-issue-cat {
    font-family: var(--font-num);
    font-size: 12px;
    letter-spacing: 0.1em;
    color: #9a9a9a;
    margin: 0 0 16px;
}

.kc-title {
    font-family: var(--font-display);
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 600;
    line-height: 1.35;
    letter-spacing: 0.02em;
    color: #000;
    margin: 0;
}

.kc-body {
    max-width: 760px;
    padding-top: 40px;
    font-size: 16.5px;
    line-height: 1.9;
    color: #1a1a1a;
}

/* 导语 */
.kc-lead {
    font-size: 17px;
    line-height: 1.85;
    color: #4a4a4a;
    margin: 0 0 28px;
    padding-left: 16px;
    border-left: 3px solid #000;
}

/* 六个字段 */
.kc-fields {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.kc-fields li {
    position: relative;
    padding-left: 18px;
    font-size: 16px;
    line-height: 1.85;
}

.kc-fields li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.68em;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #000;
}

.kc-fields strong {
    font-weight: 600;
    color: #000;
}

.kc-h {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 700;
    line-height: 1.6;
    color: #000;
    margin: 32px 0 16px;
}

.kc-hr {
    border: 0;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    margin: 32px 0;
}

/* 有序列表：保留原文编号（如文档目录的 1. / 1.1），用悬挂缩进对齐 */
.kc-ol {
    list-style: none;
    margin: 0 0 20px;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.kc-ol li {
    font-size: 15.5px;
    line-height: 1.8;
    color: #1a1a1a;
    padding-left: 3em;
    text-indent: -3em;
}

/* 代码块：可直接复制（SOP 步骤、工作流、模板骨架、提示词） */
.kc-code {
    position: relative;
    margin: 0 0 24px;
    background: #f6f6f4;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-sm);
}

.kc-code pre {
    margin: 0;
    padding: 20px 22px;
    overflow-x: auto;
}

.kc-code code {
    font-family: 'LXGW WenKai Mono TC', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 14px;
    line-height: 1.85;
    color: #24292f;
    white-space: pre;
    tab-size: 4;
}

.kc-copy {
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 1;
    padding: 5px 12px;
    font-family: var(--font-sans);
    font-size: 12px;
    letter-spacing: 0.04em;
    color: #6b6b6b;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.14);
    border-radius: 999px;
    cursor: pointer;
    transition: all 0.18s ease;
}

.kc-copy:hover {
    color: #000;
    border-color: #000;
}

.kc-copy.is-done {
    color: #fff;
    background: #000;
    border-color: #000;
}

/* 配图 / 思维导图：独占一行，点图可打开原图看细节 */
.kc-figure {
    margin: 0 0 28px;
}

.kc-figure-link {
    display: block;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: #fff;
    transition: border-color 0.18s ease;
}

.kc-figure-link:hover {
    border-color: #000;
}

.kc-img {
    display: block;
    width: 100%;
    height: auto;
}

.kc-figure-cap {
    font-size: 13px;
    line-height: 1.7;
    color: #8a8a8a;
    text-align: center;
    margin: 10px 0 0;
}

/* ===== 思维导图（```mindmap 代码块渲染） =====
   左 → 右的树：根为实心块、一级分支为描边块、再往下为圆点条目；连接线用伪元素画。 */
.kc-mindmap {
    overflow-x: auto;
    margin: 0 0 24px;
    padding: 8px 2px 18px;
}

.mm-tree {
    display: inline-flex;
    align-items: center;
}

.mm-branch {
    position: relative;
    display: flex;
    align-items: center;
}

/* 母线：连接同级兄弟的竖线（首尾各截一半，只到第一个/最后一个的中点） */
.mm-branch::before {
    content: '';
    position: absolute;
    left: -26px;
    top: 0;
    bottom: 0;
    width: 1px;
    background: rgba(0, 0, 0, 0.22);
}

.mm-branch:first-child::before { top: 50%; }
.mm-branch:last-child::before { bottom: 50%; }
.mm-branch:only-child::before { display: none; }

/* 支线：从母线连到本节点 */
.mm-branch::after {
    content: '';
    position: absolute;
    left: -26px;
    top: 50%;
    width: 26px;
    height: 1px;
    background: rgba(0, 0, 0, 0.22);
}

.mm-children {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-left: 8px;
    padding-left: 26px;
}

/* 父节点连到母线的横线 */
.mm-children::before {
    content: '';
    position: absolute;
    left: -8px;
    top: 50%;
    width: 8px;
    height: 1px;
    background: rgba(0, 0, 0, 0.22);
}

/* 多根（没有唯一根节点）时的兜底：不画父连线 */
.mm-forest {
    margin-left: 0;
    padding-left: 0;
}

.mm-forest::before { display: none; }
.mm-forest > .mm-branch::before,
.mm-forest > .mm-branch::after { display: none; }

.mm-node {
    white-space: nowrap;
    font-size: 14px;
    line-height: 1.5;
    color: #1a1a1a;
}

.mm-root {
    padding: 11px 18px;
    background: #000;
    color: #fff;
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 0.02em;
    border-radius: var(--radius-sm);
}

.mm-fork {
    padding: 7px 13px;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.mm-leaf {
    position: relative;
    padding-left: 15px;
    color: #555;
}

.mm-leaf::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 6px;
    height: 6px;
    margin-top: -3px;
    border-radius: 50%;
    background: #000;
}

/* 表格（速查索引那篇用） */
.kc-table-wrap {
    overflow-x: auto;
    margin: 0;
}

.kc-table-wrap table {
    border-collapse: collapse;
    width: 100%;
    font-size: 14.5px;
}

.kc-table-wrap th,
.kc-table-wrap td {
    border: 1px solid rgba(0, 0, 0, 0.1);
    padding: 10px 14px;
    text-align: left;
    vertical-align: top;
    line-height: 1.7;
}

.kc-table-wrap th {
    background: #f4f4f4;
    font-weight: 600;
    white-space: nowrap;
}

/* 加载与失败提示 */
.kc-status {
    font-size: 15px;
    line-height: 1.9;
    color: #6b6b6b;
    margin: 0;
}

.kc-status a {
    color: #000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.2);
}

.kc-status-error {
    color: #4a4a4a;
}

.kc-status-detail {
    display: inline-block;
    margin-top: 6px;
    font-size: 13.5px;
    line-height: 1.8;
    color: #8a8a8a;
}

/* ===== 条目导航 ===== */
.kc-issue-nav {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 32px;
    max-width: 760px;
    margin-top: 64px;
    padding-top: 32px;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.kc-issue-back {
    font-size: 14px;
    color: #6b6b6b;
}

.kc-issue-back:hover {
    color: #000;
}

.kc-issue-next {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 6px;
    max-width: 62%;
    text-align: right;
}

.kc-issue-nav-label {
    font-size: 12px;
    letter-spacing: 0.1em;
    color: #9a9a9a;
}

.kc-issue-nav-title {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 600;
    line-height: 1.5;
    color: #000;
}

/* ===== 响应式 ===== */
@media (max-width: 968px) {
    .kc-hero {
        padding: 24px 0 40px;
    }

    /* 左侧分类改为横向可换行的胶囊行 */
    .kc-layout {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .kc-side {
        position: static;
        gap: 14px;
    }

    .kc-cats {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 8px;
    }

    .kc-cat {
        width: auto;
        gap: 8px;
        padding: 8px 14px;
        background: #fff;
        border: 1px solid rgba(0, 0, 0, 0.12);
        border-radius: 999px;
    }

    .kc-cat:hover {
        background: #fff;
        border-color: #000;
    }

    .kc-cat.active {
        border-color: #000;
    }

    .kc-side-tip {
        display: none;
    }
}

@media (max-width: 600px) {
    .kc-hero {
        padding: 24px 0 32px;
    }

    .kc-card {
        padding: 22px 20px;
    }

    .kc-content-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }

    .kc-code pre {
        padding: 18px 16px;
    }

    .kc-code code {
        font-size: 13px;
    }

    .kc-ol li {
        padding-left: 0;
        text-indent: 0;
    }

    .mm-node {
        font-size: 13px;
    }

    .mm-root {
        font-size: 14px;
        padding: 9px 14px;
    }

    .kc-issue {
        padding: 48px 0;
    }

    .kc-body {
        font-size: 15.5px;
    }

    .kc-issue-nav {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
        margin-top: 48px;
    }

    .kc-issue-next {
        align-items: flex-start;
        max-width: 100%;
        text-align: left;
    }
}