.reading-page { --code-bg: #101216; --code-comment: #969eaa; --code-string: #9cd0a8; --code-number: #e8b77f; --code-keyword: #b4bcf5; --code-property: #85c6d1; padding-block: 30px 48px; }
html[data-theme="light"] .reading-page { --code-bg: #f5f7fa; --code-comment: #677381; --code-string: #2b704a; --code-number: #955415; --code-keyword: #5f4ca4; --code-property: #1b6375; }
.reading-breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; color: var(--muted); font-size: 12px; }
.reading-breadcrumb [aria-current] { color: var(--text); }
.reading-header { margin: 24px 0 32px; }
.reading-header h1 { max-width: 1200px; margin: 0 0 20px; font-size: clamp(28px, 2.3vw, 42px); font-weight: 650; line-height: 1.45; letter-spacing: .015em; overflow-wrap: anywhere; }
.reading-byline { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 24px; color: var(--muted); font-size: 13px; }
.reading-byline a { color: var(--accent); }
.reading-byline a, .reading-byline strong, .reading-byline time { margin-left: 5px; }
.reading-byline strong { color: var(--text); font-weight: 400; }
.reading-byline > span { overflow-wrap: anywhere; }
.reading-layout { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 28px; align-items: start; }
.reading-paper { min-width: 0; padding: 40px 44px 0; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); }
.article-body { max-width: 1040px; margin-inline: auto; color: var(--text); font-size: 16px; line-height: 1.95; overflow-wrap: anywhere; }
.article-body > :first-child { margin-top: 0; }
.article-body h1, .article-body h2, .article-body h3, .article-body h4, .article-body h5, .article-body h6 { margin: 2em 0 .8em; line-height: 1.5; font-weight: 600; scroll-margin-top: 28px; }
.article-body h1 { font-size: 30px; }
.article-body h2 { padding-bottom: 12px; border-bottom: 1px solid var(--border); font-size: 26px; }
.article-body h3 { font-size: 20px; }
.article-body h4 { font-size: 18px; }
.article-body h5, .article-body h6 { font-size: 16px; }
.article-body p { margin: 0 0 1.2em; }
.article-body ul, .article-body ol { margin: 1em 0 1.4em; padding-left: 1.7em; }
.article-body li { margin-block: .45em; }
.article-body li > p { margin-bottom: .4em; }
.article-body li > ul, .article-body li > ol { margin-block: .4em .8em; }
.article-body li::marker { color: var(--muted); }
.article-body a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { text-decoration-thickness: 2px; }
.article-body hr { margin: 32px 0; border: 0; border-top: 1px solid var(--border); }
.article-body img, .article-body video { display: block; max-width: 100%; height: auto; margin: 20px auto; border-radius: 6px; }
.article-body iframe { max-width: 100%; border: 0; }
.article-body figure { max-width: 100%; margin: 24px 0; }
.article-body figcaption { margin-top: 10px; color: var(--muted); font-size: 13px; text-align: center; }
.article-body blockquote { margin: 24px 0; padding: 18px 22px; border-left: 3px solid var(--accent); border-radius: 0 6px 6px 0; background: var(--accent-soft); color: var(--muted); }
.article-body blockquote > :last-child { margin-bottom: 0; }
.article-body code, .article-body kbd, .article-body samp { font-family: var(--mono); font-size: .88em; }
.article-body :not(pre) > code, .article-body kbd { padding: .15em .4em; border: 1px solid var(--border); border-radius: 4px; color: var(--accent); background: var(--surface-raised); white-space: break-spaces; }
.article-body pre { max-width: 100%; margin: 24px 0; padding: 18px 20px; overflow: auto; border: 1px solid var(--border); border-radius: 8px; background: var(--code-bg); color: var(--text); font: 13px/1.8 var(--mono); white-space: pre; overflow-wrap: normal; tab-size: 4; text-shadow: none; scrollbar-color: var(--input-border) var(--code-bg); }
.article-body pre[data-language]::before { content: attr(data-language); display: block; margin-bottom: 14px; color: var(--muted); font: 11px/1.5 var(--mono); letter-spacing: .08em; user-select: none; }
.article-body pre code { padding: 0; border: 0; background: transparent; color: inherit; font: inherit; text-shadow: none; white-space: inherit; overflow-wrap: normal; }
.article-body pre:focus-visible, .article-table-scroll:focus-visible { outline-offset: -3px; }
.article-body .token.comment, .article-body .token.prolog, .article-body .token.doctype, .article-body .token.cdata { color: var(--code-comment); }
.article-body .token.punctuation, .article-body .token.operator { color: var(--muted); background: transparent; }
.article-body .token.string, .article-body .token.char, .article-body .token.attr-value, .article-body .token.builtin { color: var(--code-string); }
.article-body .token.number, .article-body .token.boolean, .article-body .token.constant, .article-body .token.function { color: var(--code-number); }
.article-body .token.keyword, .article-body .token.selector, .article-body .token.important { color: var(--code-keyword); }
.article-body .token.property, .article-body .token.tag, .article-body .token.attr-name, .article-body .token.class-name { color: var(--code-property); }
.article-body .token.bold, .article-body .token.important { font-weight: 600; }
.article-body .token.italic { font-style: italic; }
.article-table-scroll { max-width: 100%; margin: 24px 0; overflow-x: auto; border: 1px solid var(--border); border-radius: 8px; scrollbar-color: var(--input-border) var(--surface); }
.article-body table { width: 100%; margin: 0; border-collapse: collapse; font-size: 14px; line-height: 1.7; }
.article-body th, .article-body td { min-width: 120px; padding: 12px 16px; border: 1px solid var(--border); text-align: left; vertical-align: top; }
.article-body th { color: var(--text); background: var(--surface-raised); font-weight: 600; }
.article-body tbody tr:nth-child(even) { background: var(--row-alt); }
.article-body details { margin-block: 20px; padding: 16px 20px; border: 1px solid var(--border); border-radius: 6px; }
.article-body summary { cursor: pointer; color: var(--accent); }
.article-body summary + * { margin-top: 16px; }
.reading-unavailable { padding-block: 24px; color: var(--muted); }
.reading-footer { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px; max-width: 1040px; margin: 40px auto 0; padding: 28px 0; border-top: 1px solid var(--border); }
.reading-footer h2 { margin: 0 0 6px; font-size: 17px; font-weight: 600; }
.reading-footer p { color: var(--muted); font-size: 13px; }
.reading-discuss { display: inline-flex; align-items: center; gap: 20px; padding: 10px 16px; border: 1px solid var(--accent); border-radius: 7px; color: var(--accent); background: var(--accent-soft); font-size: 13px; }
.reading-discuss:hover { color: var(--accent-text); background: var(--accent); }
.reading-sidebar { position: sticky; top: 24px; min-width: 0; }
.reading-tools { display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px; }
.reading-tools a { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 13px 16px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--muted); font-size: 13px; }
.reading-tools a:hover { color: var(--accent); border-color: var(--accent); }
.reading-tools a:first-child { justify-content: flex-start; }
.reading-toc { border: 1px solid var(--border); border-radius: 10px; background: var(--surface); }
.reading-toc summary { display: flex; align-items: center; gap: 10px; padding: 18px; color: var(--text); font: 600 17px/1.5 var(--display); cursor: pointer; list-style: none; }
.reading-toc summary::-webkit-details-marker { display: none; }
.reading-toc summary::after { content: '+'; margin-left: auto; color: var(--muted); font: 16px/1 var(--mono); }
.reading-toc[open] summary::after { content: '−'; }
.toc-count { color: var(--muted); font: 11px/1.5 var(--mono); }
.reading-toc nav { max-height: calc(100vh - 250px); overflow-y: auto; padding: 0 10px 12px; scrollbar-width: thin; scrollbar-color: var(--input-border) transparent; }
.toc-list { padding: 0; margin: 0; list-style: none; }
.toc-list a { display: block; padding: 7px 10px; border-left: 2px solid transparent; border-radius: 0 4px 4px 0; color: var(--muted); font-size: 13px; line-height: 1.6; overflow-wrap: anywhere; }
.toc-list .toc-subheading a { padding-left: 22px; font-size: 12px; }
.toc-list a:hover { color: var(--text); background: var(--surface-hover); }
.toc-list a[aria-current="location"] { border-left-color: var(--accent); background: var(--accent-soft); color: var(--accent); }

@media (max-width: 1359px) { .reading-layout { grid-template-columns: minmax(0, 1fr) 250px; gap: 24px; } .reading-paper { padding: 32px 28px 0; } }
@media (max-width: 1199px) {
    .reading-layout { grid-template-columns: minmax(0, 1fr); }
    .reading-sidebar { position: static; order: -1; }
    .reading-tools { flex-direction: row; flex-wrap: wrap; margin-bottom: 12px; }
    .reading-toc nav { max-height: 320px; }
}
@media (max-width: 767px) {
    .reading-page { padding-block: 24px 32px; }
    .reading-header { margin: 20px 0 24px; }
    .reading-header h1 { font-size: 28px; }
    .reading-byline { gap: 8px 16px; font-size: 12px; }
    .reading-paper { padding: 24px 20px 0; }
    .article-body { font-size: 16px; line-height: 1.9; }
    .article-body h1 { font-size: 26px; }
    .article-body h2 { font-size: 23px; }
    .article-body h3 { font-size: 19px; }
    .article-body pre { padding: 14px; font-size: 12px; }
    .article-body blockquote { padding: 14px 16px; }
    .article-body th, .article-body td { padding: 10px 12px; }
    .reading-footer { margin-top: 28px; padding-block: 24px; }
}
@media (max-width: 575px) { .reading-paper { padding-inline: 16px; } .reading-tools a { padding: 11px 12px; font-size: 12px; } }