/*
  蓝屿·报（azure-paper）—— 报刊式黑白

  版式来自对照稿：白纸、近黑字、三档横线；没有卡片、圆角和阴影。
  记忆点是日期被放大成版面锚点：头条 56px、简讯 27px。
  图形只有一处：头条右侧的网点圆版（内联 SVG，由 index.html 直接画）。

  与参考稿一致的三条约束：
    1. 零图片：所有图形都是内联 SVG 或 CSS，不引外部素材。
    2. 颜色只走站点注入的 --brand，且只出现在栏目名、链接和悬停上。
    3. 次级文字对比度按 4.5:1 配（--mid #565b62 on white ≈ 6.8）。
*/

:root {
    --ink: #14161a;
    --mid: #565b62;
    --rule: #d7d7d2;
    --paper: #ffffff;
    --brand: #1d4ed8;
    --wrap: 1040px;
    /* 标题走衬线、正文走站点字体：报纸的常规分工，也保证站点换成黑体时刊头不被带偏 */
    --font-heading: "Noto Serif CJK SC", "Source Han Serif SC", "Songti SC", Georgia, serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-size: 15.5px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto 1fr auto;
}

body > .site-footer { align-self: end; }

a { color: inherit; text-decoration: none; }
a:hover { color: var(--brand); }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; }

h1, h2, h3, h4 { margin: 0; font-weight: 700; line-height: 1.35; }

.wordmark, .lead-title, .brief-title, .page-title, .post-title, .article-title, .footer-title {
    font-family: var(--font-heading);
}
img { max-width: 100%; height: auto; }

.wrap {
    width: 100%;
    max-width: var(--wrap);
    margin: 0 auto;
    padding: 0 34px;
}

/* ---------------------------------------------------------------- 刊头 */

.masthead {
    background: var(--paper);
    border-top: 3px solid var(--ink);
}

.masthead .wrap { padding-top: 24px; }

.masthead-row {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--rule);
}

.wordmark {
    margin: 0;
    font-size: 46px;
    font-weight: 700;
    line-height: 1;
    letter-spacing: .16em;
}

.wordmark a:hover { color: var(--ink); }

.dateline {
    max-width: 420px;
    text-align: right;
    font-size: 12.5px;
    line-height: 1.75;
    color: var(--mid);
    letter-spacing: .02em;
}

.dateline span { display: block; }

.sections {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 26px;
    padding: 11px 0;
    border-bottom: 1px solid var(--rule);
    font-size: 13.5px;
    color: var(--mid);
}

.sections a { padding-bottom: 3px; border-bottom: 1px solid transparent; }
.sections a:hover { color: var(--ink); border-bottom-color: var(--ink); }

/* ---------------------------------------------------------------- 首页头条 */

.lead {
    display: grid;
    grid-template-columns: 110px minmax(0, 1fr) 170px;
    gap: 30px;
    padding: 30px 0 26px;
    border-bottom: 2px solid var(--ink);
}

.lead-date { padding-top: 2px; }

.lead-num {
    display: block;
    font-size: 56px;
    font-weight: 700;
    line-height: .86;
    letter-spacing: -.035em;
    font-variant-numeric: tabular-nums;
}

.lead-month {
    display: block;
    margin-top: 9px;
    font-size: 11.5px;
    letter-spacing: .16em;
    color: var(--mid);
}

.lead-cat { font-size: 12px; letter-spacing: .06em; color: var(--brand); }

.lead-title {
    text-wrap: balance;
    margin: 8px 0 12px;
    font-size: 32px;
    font-weight: 700;
    line-height: 1.34;
    letter-spacing: -.01em;
}

.lead-excerpt {
    margin: 0;
    max-width: 34em;
    font-size: 15px;
    line-height: 1.8;
    color: var(--mid);
}

.lead-art { margin: 0; }
.lead-art svg { display: block; width: 100%; height: auto; }

/* ---------------------------------------------------------------- 简讯两栏 */

.briefs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 44px;
}

.brief {
    display: grid;
    grid-template-columns: 54px minmax(0, 1fr);
    gap: 14px;
    padding: 19px 0;
    border-bottom: 1px solid var(--rule);
}

.brief-num {
    padding-top: 4px;
    font-size: 27px;
    font-weight: 700;
    line-height: .86;
    letter-spacing: -.02em;
    font-variant-numeric: tabular-nums;
}

.brief-title { margin: 0 0 5px; font-size: 17.5px; font-weight: 600; line-height: 1.5; }

.brief-excerpt {
    margin: 0;
    font-size: 13.5px;
    line-height: 1.72;
    color: var(--mid);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ---------------------------------------------------------------- 栏目条 */

.index-strip {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 10px 30px;
    padding: 18px 0;
    border-bottom: 1px solid var(--rule);
    font-size: 13.5px;
}

.index-strip .label { font-size: 11.5px; letter-spacing: .14em; color: var(--mid); }

/* ---------------------------------------------------------------- 列表页 */

.list-wrap { display: grid; grid-template-columns: minmax(0, 1fr) 220px; gap: 48px; }

.page-head { padding: 26px 0 4px; }

.page-title { font-size: 34px; line-height: 1.3; }

.page-desc { margin: 6px 0 0; font-size: 13.5px; color: var(--mid); }
.page-desc a { color: var(--brand); }

.post-list { list-style: none; margin: 8px 0 0; padding: 0; }

.post-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 90px;
    gap: 20px;
    align-items: baseline;
    padding: 16px 0;
    border-bottom: 1px solid var(--rule);
}

.post-title { margin: 0 0 4px; font-size: 19px; font-weight: 600; line-height: 1.5; }

.post-excerpt {
    margin: 0;
    font-size: 14px;
    line-height: 1.7;
    color: var(--mid);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-date {
    text-align: right;
    font-size: 12.5px;
    color: var(--mid);
    font-variant-numeric: tabular-nums;
}

.post-cat { font-size: 12px; color: var(--brand); }

/* 归档总览 */
.arc-months { list-style: none; margin: 10px 0 0; padding: 0; }

.arc-months li {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    padding: 13px 0;
    border-bottom: 1px solid var(--rule);
    font-size: 16px;
}

.arc-months a { font-weight: 600; }
.arc-count { font-size: 12.5px; color: var(--mid); }

/* ---------------------------------------------------------------- 分页 */

.pagination {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 24px;
    padding: 16px 0 26px;
    border-top: 1px solid var(--rule);
    font-size: 13.5px;
    color: var(--mid);
}

.pagination a { color: var(--brand); }
.pagination .is-current { color: var(--ink); font-weight: 600; }
.pagination .is-disabled { opacity: .4; }

/* ---------------------------------------------------------------- 文章页 */

.article-wrap {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 220px;
    gap: 48px;
    padding-top: 26px;
}

.crumb { margin-bottom: 12px; font-size: 12.5px; color: var(--mid); }
.crumb a:hover { color: var(--brand); }
.crumb .sep { margin: 0 7px; }

.article-title { margin: 0 0 12px; font-size: 38px; line-height: 1.36; letter-spacing: -.015em; }

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--ink);
    font-size: 12.5px;
    color: var(--mid);
}

.article-body {
    max-width: 38em;
    margin-top: 24px;
    font-size: 16.5px;
    line-height: 1.95;
    color: var(--ink);
    word-wrap: break-word;
}

.article-body p { margin: 0 0 1.1em; }

.article-body h2 {
    position: relative;
    margin: 2em 0 .7em;
    padding-left: 14px;
    font-size: 1.35rem;
    line-height: 1.5;
}

.article-body h2::before {
    content: "";
    position: absolute;
    left: 0;
    top: .3em;
    width: 4px;
    height: 1.05em;
    background: var(--ink);
}

.article-body h3 { margin: 1.6em 0 .6em; font-size: 1.12rem; }

.article-body a { color: var(--brand); text-decoration: underline; text-underline-offset: 3px; }

.article-body ul, .article-body ol { margin: 0 0 1.1em; padding-left: 1.4em; }
.article-body li { margin: .3em 0; }

.article-body blockquote {
    margin: 1.3em 0;
    padding: 10px 16px;
    border-left: 3px solid var(--brand);
    color: var(--mid);
}

.article-body code {
    padding: 1px 6px;
    border-radius: 4px;
    background: #f4f4f1;
    font-size: .92em;
}

.article-body pre {
    margin: 1.3em 0;
    padding: 14px 16px;
    background: #f4f4f1;
    overflow-x: auto;
}

.article-body pre code { padding: 0; background: none; }

.article-body table { width: 100%; border-collapse: collapse; margin: 1.3em 0; font-size: 14.5px; }

.article-body th, .article-body td {
    padding: 8px 10px;
    border: 1px solid var(--rule);
    text-align: left;
}

.article-body th { background: #f6f6f3; }

.article-body img { max-width: 100%; height: auto; }

.article-back {
    margin: 30px 0 0;
    padding-top: 16px;
    border-top: 1px solid var(--rule);
    font-size: 13px;
}

.article-back a { color: var(--brand); }

.article-aside { padding-top: 6px; }

.aside-title {
    margin: 0 0 10px;
    font-size: 11.5px;
    font-weight: 600;
    letter-spacing: .14em;
    color: var(--mid);
}

.aside-list { list-style: none; margin: 0; padding: 0; font-size: 13.5px; }

.aside-list li { padding: 7px 0; border-bottom: 1px solid var(--rule); }
.aside-list a:hover { color: var(--brand); }

/* ---------------------------------------------------------------- 单页 */

.page-wrap { max-width: 760px; padding-top: 30px; padding-bottom: 20px; }
.page-wrap .article-title { font-size: 34px; }
.page-wrap .article-body { max-width: none; margin-top: 20px; }

/* ---------------------------------------------------------------- 搜索 */

.search-box { margin: 16px 0; }

.search-box input {
    width: 100%;
    height: 44px;
    padding: 0 12px;
    border: 1px solid var(--ink);
    background: #fff;
    color: var(--ink);
    font: inherit;
    font-size: 15px;
}

.search-box input:focus { outline: 2px solid var(--brand); outline-offset: 1px; }

.hits { list-style: none; margin: 0; padding: 0; }
.hit { display: grid; grid-template-columns: minmax(0, 1fr) 90px; gap: 20px; padding: 16px 0; border-bottom: 1px solid var(--rule); }
.hit h2 { margin: 0 0 4px; font-size: 19px; font-weight: 600; line-height: 1.5; }
.hit p { margin: 0; font-size: 14px; line-height: 1.7; color: var(--mid); }
.hit time { text-align: right; font-size: 12.5px; color: var(--mid); }

.empty { padding: 22px 0; font-size: 13.5px; color: var(--mid); }

/* ---------------------------------------------------------------- 页脚 */

.site-footer { margin-top: 40px; border-top: 3px solid var(--ink); }

.footer-in {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 30px;
    padding: 26px 0 30px;
}

.footer-title {
    margin: 0 0 10px;
    font-size: 11.5px;
    font-weight: 600;
    letter-spacing: .14em;
    color: var(--mid);
}

.footer-col p { margin: 0 0 6px; font-size: 12.5px; line-height: 1.8; color: var(--mid); }
.footer-col a { color: var(--mid); }
.footer-col a:hover { color: var(--brand); }

.footer-links { list-style: none; margin: 0; padding: 0; font-size: 12.5px; }
.footer-links li { margin-bottom: 5px; }

/* ---------------------------------------------------------------- 响应式 */

@media (max-width: 900px) {
    .lead { grid-template-columns: 96px minmax(0, 1fr); }
    .lead-art { grid-column: 2; width: 160px; margin: 12px 0 0; }
    .briefs { column-gap: 30px; }
    .article-wrap, .list-wrap { grid-template-columns: 1fr; gap: 28px; }
    .article-aside { border-top: 1px solid var(--rule); padding-top: 18px; }
    .footer-in { grid-template-columns: 1fr 1fr; gap: 24px; }
}

@media (max-width: 760px) {
    .wrap { padding: 0 20px; }
    .masthead-row { flex-direction: column; align-items: flex-start; gap: 10px; }
    .dateline { text-align: left; }
    .wordmark { font-size: 34px; }
    .lead { grid-template-columns: 1fr; gap: 14px; padding: 22px 0 20px; }
    .lead-num { display: inline-block; margin-right: 8px; font-size: 34px; }
    .lead-month { display: inline-block; margin: 0; }
    .lead-art { grid-column: auto; width: 150px; }
    .lead-title { font-size: 25px; }
    .briefs { grid-template-columns: 1fr; }
    .brief { grid-template-columns: 38px minmax(0, 1fr); gap: 10px; padding: 16px 0; }
    .brief-num { font-size: 21px; }
    .brief-title { font-size: 16.5px; }
    .brief-excerpt { font-size: 13px; }
    .post-item, .hit { grid-template-columns: 1fr; gap: 4px; }
    .post-date, .hit time { text-align: left; }
    .article-title { font-size: 27px; }
    .article-body { font-size: 15.5px; }
    .page-wrap .article-title { font-size: 26px; }
    .footer-in { grid-template-columns: 1fr; gap: 20px; }
}