/* ===== 产品经理数读 · 系列样式 =====
   依托站点令牌（--font-num / --radius-*），全站黑白灰；
   数字是这个系列的招牌，用 Righteous（--font-num）放大做主视觉。 */

/* 让开固定导航 */
.kd-main {
    padding-top: 72px;
}

/* ===== 面包屑 ===== */
.kd-crumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: #6b6b6b;
    margin-bottom: 40px;
}

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

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

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

.kd-eyebrow {
    font-family: var(--font-num);
    font-size: 12px;
    letter-spacing: 0.2em;
    color: #6b6b6b;
    text-transform: uppercase;
    margin: 0 0 16px;
}

.kd-hero-title {
    font-family: var(--font-display);
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: 0.02em;
    color: #000;
    margin: 0 0 16px;
}

.kd-hero-sub {
    font-size: 17px;
    line-height: 1.8;
    color: #4a4a4a;
    margin: 0 0 28px;
}

.kd-hero-sub strong {
    color: #000;
    font-weight: 600;
}

.kd-hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 40px;
    padding-top: 24px;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    font-size: 14px;
    color: #6b6b6b;
}

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

/* ===== 列表页：卡片（数字为主角） ===== */
/* ===== 期数卡片列表 ===== */
.kd-list {
    padding: 0 0 96px;
}

/* ===== 瀑布流：等宽多列，卡片高度随内容 =====
   这里是 CSS 多列兜底（无 JS 时生效，顺序为先竖后横）；
   页面内的编排脚本会加上 .kd-masonry，改成绝对定位、按「先横后竖」落位 */
.kd-grid {
    column-width: 300px;
    column-count: 3;
    column-gap: 24px;
}

/* 脚本启用的编排模式：容器相对定位、高度由脚本按最末列算 */
.kd-grid.kd-masonry {
    column-width: auto;
    column-count: auto;
    position: relative;
}

.kd-masonry .kd-card {
    position: absolute;
    top: 0;
    left: 0;
    margin: 0;
    /* 只保留悬停反馈的过渡，避免落位时 left/top 也做动画 */
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.kd-card {
    display: block;
    padding: 30px 26px;
    margin: 0 0 24px; /* 列内间距靠 margin，瀑布流没有 gap */
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
    break-inside: avoid;
    -webkit-column-break-inside: avoid;
    page-break-inside: avoid;
}

.kd-card:hover {
    transform: translateY(-4px);
    border-color: #000;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.kd-card-no {
    font-family: var(--font-num);
    font-size: 12px;
    letter-spacing: 0.12em;
    color: #9a9a9a;
    margin-bottom: 14px;
}

/* 主角数字 */
.kd-card-num {
    font-family: var(--font-num);
    font-size: clamp(34px, 4.2vw, 50px);
    font-weight: 400;
    line-height: 1.08;
    letter-spacing: -0.01em;
    color: #000;
    margin: 0 0 16px;
}

.kd-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 12px;
}

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

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

.kd-issue-head {
    max-width: 760px;
    padding-bottom: 40px;
}

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

.kd-status code {
    font-family: var(--font-num);
    font-size: 13px;
    color: #000;
}

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

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

/* 顶部数字卡：把「期数 + 数字 + 背景 + 口径」收进一张卡 */
.kd-num-card {
    padding: 40px;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-md);
}

.kd-issue-no {
    font-family: var(--font-num);
    font-size: 12px;
    letter-spacing: 0.1em;
    color: #9a9a9a;
    margin: 0 0 24px;
}

/* 每一期唯一的主角：开片数字 */
.kd-num {
    font-family: var(--font-num);
    font-size: clamp(56px, 9vw, 112px);
    font-weight: 400;
    line-height: 1;
    letter-spacing: -0.02em;
    color: #000;
    margin: 0 0 24px;
    word-break: break-word;
}

.kd-num-bg {
    font-size: 16px;
    line-height: 1.75;
    color: #4a4a4a;
    max-width: 720px;
    margin: 0 0 10px;
}

.kd-num-scope {
    font-size: 13px;
    line-height: 1.75;
    color: #9a9a9a;
    max-width: 720px;
    margin: 0;
}

.kd-title {
    font-family: var(--font-display);
    font-size: clamp(24px, 3.2vw, 34px);
    font-weight: 700;
    line-height: 1.4;
    letter-spacing: 0.02em;
    color: #000;
    max-width: 820px;
    margin: 40px 0 12px;
}

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

/* ===== 详情页：正文 ===== */
.kd-body {
    max-width: 720px;
    padding: 56px 0 0;
    font-variant-numeric: tabular-nums;
}

.kd-body p {
    font-size: 17px;
    line-height: 1.95;
    color: #1a1a1a;
    margin: 0 0 22px;
}

.kd-body strong {
    font-weight: 600;
    color: #000;
}

/* 结论：解读的落点句 */
.kd-conclusion {
    font-family: var(--font-display);
    font-size: clamp(20px, 2.4vw, 24px) !important;
    font-weight: 600 !important;
    line-height: 1.6 !important;
    color: #000;
    padding-left: 20px;
    border-left: 3px solid #000;
    margin-bottom: 32px !important;
}

/* 公示（参照物胶囊） */
.kd-pill {
    display: inline-block;
    background: #000;
    color: #fff !important;
    border-radius: 999px;
    padding: 12px 22px;
    font-size: 15px !important;
    line-height: 1.6 !important;
    margin: 4px 0 28px !important;
}

/* 板块分隔 */
.kd-divider {
    width: 60px;
    height: 2px;
    background: #000;
    border: 0;
    margin: 40px 0;
}

.kd-note {
    font-size: 16px;
    line-height: 1.8;
    color: #4a4a4a;
    border-left: 2px solid rgba(0, 0, 0, 0.15);
    padding-left: 18px;
    margin: 0 0 22px;
}

/* 系列铭牌 */
.kd-plaque {
    background: #000;
    color: rgba(255, 255, 255, 0.92) !important;
    border-radius: var(--radius-md);
    padding: 28px 32px;
    font-size: 15px !important;
    line-height: 1.8 !important;
    margin: 48px 0 0 !important;
}

/* ===== 详情页：出处 ===== */
.kd-sources {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.kd-sources-title {
    font-family: var(--font-num);
    font-size: 12px;
    font-weight: 400;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: #6b6b6b;
    margin: 0 0 24px;
}

.kd-sources ul {
    display: flex;
    flex-direction: column;
    gap: 22px;
}

.kd-source-text {
    font-size: 14px !important;
    line-height: 1.8 !important;
    color: #4a4a4a;
    margin: 0 0 8px !important;
}

.kd-source-link {
    font-family: var(--font-num);
    font-size: 13px;
    color: #000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.2);
    padding-bottom: 2px;
    word-break: break-all;
}

.kd-source-link:hover {
    border-bottom-color: #000;
}

/* ===== 标签与期数导航 ===== */
.kd-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 40px;
}

.kd-tags li {
    font-size: 13px;
    color: #6b6b6b;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 999px;
    padding: 6px 14px;
}

.kd-issue-nav {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    max-width: 760px;
    margin-top: 56px;
    padding-top: 28px;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.kd-issue-back {
    font-size: 13px;
    color: #6b6b6b;
}

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

.kd-issue-next {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-left: auto;
    text-align: right;
}

.kd-issue-nav-label {
    font-size: 13px;
    color: #6b6b6b;
}

.kd-issue-nav-num {
    font-family: var(--font-num);
    font-size: clamp(20px, 2.6vw, 28px);
    font-weight: 400;
    line-height: 1.2;
    color: #000;
}

.kd-issue-next:hover .kd-issue-nav-num {
    text-decoration: underline;
    text-underline-offset: 4px;
}

/* ===== 微信公众号同步发布 ===== */
.kd-wechat {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px 32px;
    padding: 24px 28px;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-md);
}

.kd-list .kd-wechat {
    margin-top: 24px;
}

.kd-issue .kd-wechat {
    max-width: 760px;
    margin-top: 48px;
}

.kd-wechat-text {
    font-size: 14px;
    line-height: 1.8;
    color: #4a4a4a;
    margin: 0;
}

.kd-wechat-text strong {
    color: #000;
    font-weight: 600;
}

.kd-wechat-link {
    font-family: var(--font-num);
    font-size: 14px;
    letter-spacing: 0.02em;
    color: #000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.25);
    padding-bottom: 2px;
    white-space: nowrap;
}

.kd-wechat-link:hover {
    border-bottom-color: #000;
}

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

@media (max-width: 600px) {
    .kd-hero-meta {
        gap: 10px 24px;
    }

    .kd-card {
        padding: 24px 20px;
    }

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

    .kd-issue-head {
        padding-bottom: 32px;
    }

    .kd-num-card {
        padding: 28px 24px;
    }

    .kd-body {
        padding-top: 40px;
    }

    .kd-body p {
        font-size: 16px;
    }

    .kd-plaque {
        padding: 22px 24px;
    }

    .kd-issue-nav {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }

    .kd-issue-next {
        margin-left: 0;
        text-align: left;
    }
}