.article-page { padding: 54px 0 80px; background: var(--white); }
.article-layout { display: grid; grid-template-columns: minmax(0, 780px) minmax(240px, 1fr); align-items: start; gap: 72px; }
.article-main { min-width: 0; }

.article-header { padding-bottom: 34px; border-bottom: 1px solid var(--ink); }
.article-header__category { color: var(--red); font-size: 13px; font-weight: 800; }
.article-header h1 { margin: 15px 0; font-family: "Songti SC", STSong, serif; font-size: 42px; line-height: 1.35; }
.article-header__summary { margin: 0; color: var(--muted); font-size: 17px; }
.article-header__meta { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 22px; color: var(--muted); font-size: 12px; }

.article-boundary { display: grid; grid-template-columns: 100px 1fr; gap: 20px; margin: 28px 0; padding: 18px 20px; border-left: 4px solid var(--gold); background: var(--paper); }
.article-boundary strong { font-size: 14px; }
.article-boundary p { margin: 0; color: var(--muted); font-size: 14px; }

.article-body { color: #262a27; font-size: 17px; line-height: 1.9; }
.article-body h2 { margin: 42px 0 14px; font-family: "Songti SC", STSong, serif; font-size: 27px; line-height: 1.45; }
.article-body h3 { margin: 30px 0 12px; font-size: 20px; }
.article-body p { margin: 0 0 20px; }
.article-body a { color: var(--teal); text-decoration: underline; text-underline-offset: 3px; }
.article-body blockquote { margin: 28px 0; padding: 4px 0 4px 22px; border-left: 3px solid var(--red); color: var(--muted); }
.article-body img, .article-body video, .article-body audio { display: none; }
.article-body .table-wrap { width: 100%; max-width: 100%; margin: 26px 0; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.article-body table { width: 100%; min-width: 560px; border-collapse: collapse; font-size: 15px; line-height: 1.65; }
.article-body th, .article-body td { padding: 11px 14px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.article-body th { background: var(--paper); color: var(--ink); font-weight: 800; }
.article-body tbody tr:nth-child(even) td { background: #fafaf8; }

.article-adjacent { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; margin-top: 48px; border: 1px solid var(--line); background: var(--line); }
.article-adjacent__item { padding: 18px; background: var(--white); }

.article-related { margin-top: 52px; }
.article-related__head { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-bottom: 14px; border-bottom: 1px solid var(--ink); }
.article-related__head h2 { margin: 0; font-family: "Songti SC", STSong, serif; font-size: 24px; }
.article-related__head a { color: var(--teal); font-size: 13px; font-weight: 700; }
.article-related__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.article-related__grid article { padding: 20px 18px 20px 0; border-bottom: 1px solid var(--line); }
.article-related__grid article + article { padding-left: 18px; border-left: 1px solid var(--line); }
.article-related__grid p { margin: 0 0 7px; color: var(--red); font-size: 11px; }
.article-related__grid h3 { margin: 0; font-size: 15px; line-height: 1.55; }

.article-aside { position: sticky; top: 178px; padding: 26px 0; border-top: 4px solid var(--ink); border-bottom: 1px solid var(--line); }
.article-aside__label { margin: 0; color: var(--teal); font-size: 11px; font-weight: 800; }
.article-aside h2 { margin: 12px 0; font-family: "Songti SC", STSong, serif; font-size: 22px; }
.article-aside > p:not(.article-aside__label) { margin: 0; color: var(--muted); font-size: 14px; }
.article-aside a { display: inline-flex; margin-top: 18px; color: var(--red); font-size: 13px; font-weight: 700; }

@media (max-width: 900px) {
    .article-layout { grid-template-columns: 1fr; gap: 46px; }
    .article-aside { position: static; }
}

@media (max-width: 640px) {
    .article-page { padding: 42px 0 60px; }
    .article-header h1 { font-size: 33px; }
    .article-boundary { grid-template-columns: 1fr; gap: 4px; }
    .article-adjacent, .article-related__grid { grid-template-columns: 1fr; }
    .article-related__grid article + article { padding-left: 0; border-left: 0; }
    .article-body table { min-width: 520px; font-size: 14px; }
    .article-body th, .article-body td { padding: 9px 11px; }
}