@charset "utf-8";
/* ==========================================================================
   鼎上娱乐 · 页面版式层
   负责：页头、章节骨架、双栏/三栏排布、文章版式、404
   ========================================================================== */

@layer layout {
  /* ---------- 通用章节 ---------- */
  .ds-sec {
    padding: clamp(44px, 6vw, 78px) 0;
    border-top: 1px solid var(--ds-line);
  }

  .ds-sec--plain { border-top: 0; }

  .ds-sec--tint {
    background: var(--ds-paper-2);
    border-top: 1px solid var(--ds-line);
    border-bottom: 1px solid var(--ds-line);
  }

  .ds-sec--ink {
    background: var(--ds-ink);
    color: var(--ds-paper-3);
    border-top: 1px solid var(--ds-ink);
  }

  .ds-sec--ink h2,
  .ds-sec--ink h3 { color: var(--ds-paper); }

  .ds-sec--ink .ds-sec__idx,
  .ds-sec--ink .ds-sec__en { color: rgba(242, 239, 232, 0.55); }

  .ds-sec__head {
    display: grid;
    grid-template-columns: 96px minmax(0, 1fr) minmax(0, 0.85fr);
    gap: 24px;
    align-items: start;
    padding-bottom: 26px;
    margin-bottom: 34px;
    border-bottom: 1px solid var(--ds-line);
  }

  .ds-sec--ink .ds-sec__head { border-bottom-color: rgba(242, 239, 232, 0.2); }

  .ds-sec__idx {
    font-family: var(--ds-mono);
    font-size: 11px;
    letter-spacing: 0.14em;
    color: var(--ds-jade);
    padding-top: 9px;
  }

  .ds-sec__title {
    font-size: clamp(26px, 3.2vw, 40px);
    line-height: 1.2;
  }

  .ds-sec__en {
    font-family: var(--ds-mono);
    font-size: 10px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--ds-muted);
    display: block;
    margin-top: 8px;
  }

  .ds-sec__note {
    font-size: 14px;
    line-height: 1.9;
    color: var(--ds-muted);
    border-left: 1px solid var(--ds-line-strong);
    padding-left: 16px;
  }

  .ds-sec--ink .ds-sec__note { color: rgba(242, 239, 232, 0.62); border-left-color: rgba(242, 239, 232, 0.3); }

  /* ---------- 栅格 ---------- */
  .ds-grid {
    display: grid;
    gap: 1px;
    background: var(--ds-line);
    border: 1px solid var(--ds-line);
  }

  .ds-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ds-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .ds-grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .ds-grid > * { background: var(--ds-paper); }

  .ds-sec--ink .ds-grid { background: rgba(242, 239, 232, 0.16); border-color: rgba(242, 239, 232, 0.16); }
  .ds-sec--ink .ds-grid > * { background: var(--ds-ink); }

  .ds-split {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: clamp(28px, 5vw, 64px);
    align-items: start;
  }

  .ds-split--wide { grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); }

  .ds-lede {
    font-size: 15px;
    line-height: 1.95;
    color: var(--ds-ink-3);
    max-width: 60ch;
  }

  .ds-lede + .ds-lede { margin-top: 14px; }

  .ds-lede strong { color: var(--ds-ink); font-weight: 600; }

  /* ---------- 首页主视觉 ---------- */
  .ds-hero {
    padding: clamp(34px, 5vw, 60px) 0 clamp(40px, 5.5vw, 68px);
    border-bottom: 1px solid var(--ds-line-strong);
  }

  .ds-hero__top {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 26px;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--ds-line-soft);
    margin-bottom: clamp(28px, 4vw, 46px);
  }

  .ds-hero__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: clamp(30px, 5vw, 66px);
    align-items: start;
  }

  .ds-hero__title {
    font-size: clamp(38px, 5.4vw, 68px);
    line-height: 1.1;
    letter-spacing: -0.01em;
    margin-bottom: 22px;
  }

  .ds-hero__title em {
    font-style: normal;
    color: var(--ds-jade);
    position: relative;
  }

  .ds-hero__title em::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0.06em;
    height: 0.28em;
    background: var(--ds-jade-soft);
    z-index: -1;
  }

  .ds-hero__lede {
    font-size: 15.5px;
    line-height: 2;
    color: var(--ds-ink-3);
    max-width: 52ch;
  }

  .ds-hero__cta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
  }

  .ds-hero__board { position: relative; }

  /* ---------- 内页页头 ---------- */
  .ds-pagehead {
    padding: clamp(30px, 4.4vw, 54px) 0 clamp(26px, 3.6vw, 40px);
    border-bottom: 1px solid var(--ds-line-strong);
  }

  .ds-pagehead__crumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-family: var(--ds-mono);
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ds-muted);
    margin-bottom: 26px;
  }

  .ds-pagehead__crumb a { border-bottom: 1px solid transparent; }
  .ds-pagehead__crumb a:hover { color: var(--ds-jade); border-bottom-color: var(--ds-jade); }

  .ds-pagehead__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    gap: clamp(24px, 4vw, 56px);
    align-items: end;
  }

  .ds-pagehead__title {
    font-size: clamp(32px, 4.4vw, 54px);
    line-height: 1.14;
  }

  .ds-pagehead__lede {
    margin-top: 16px;
    font-size: 15px;
    line-height: 1.95;
    color: var(--ds-ink-3);
    max-width: 58ch;
  }

  .ds-pagehead__meta {
    border-top: 1px solid var(--ds-line-strong);
    padding-top: 14px;
    font-size: 12.5px;
    line-height: 1.9;
    color: var(--ds-muted);
    display: grid;
    gap: 6px;
  }

  .ds-pagehead__meta strong {
    display: block;
    font-family: var(--ds-mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    color: var(--ds-ink-3);
    font-weight: 400;
  }

  /* ---------- 文章版式 ---------- */
  .ds-article__layout {
    display: grid;
    grid-template-columns: 180px minmax(0, 1fr) 220px;
    gap: clamp(24px, 3.6vw, 48px);
    align-items: start;
    padding-top: 40px;
  }

  .ds-article__layout > * { min-width: 0; }

  .ds-article__side {
    position: sticky;
    top: 32px;
    font-size: 12.5px;
    color: var(--ds-muted);
    border-top: 1px solid var(--ds-line-strong);
    padding-top: 12px;
  }

  .ds-article__side strong {
    display: block;
    font-family: var(--ds-mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    color: var(--ds-ink-3);
    margin-bottom: 8px;
    font-weight: 400;
  }

  .ds-article__side ol { display: grid; gap: 5px; }
  .ds-article__side a:hover { color: var(--ds-jade); }
  .ds-article__side li span { font-family: var(--ds-mono); font-size: 10px; color: var(--ds-jade); margin-right: 5px; }

  .ds-prose { font-size: 15.5px; line-height: 2.02; color: var(--ds-ink-2); }
  .ds-prose > * + * { margin-top: 18px; }

  .ds-prose h2 {
    font-size: clamp(22px, 2.4vw, 29px);
    margin-top: 46px;
    padding-top: 16px;
    border-top: 1px solid var(--ds-line);
  }

  .ds-prose h3 {
    font-size: 18px;
    margin-top: 30px;
    padding-left: 12px;
    border-left: 3px solid var(--ds-jade);
  }

  .ds-prose p { margin-top: 16px; }

  .ds-prose strong { color: var(--ds-ink); font-weight: 600; }

  .ds-prose ul,
  .ds-prose ol { margin-top: 16px; display: grid; gap: 8px; }

  .ds-prose ul li,
  .ds-prose ol li {
    position: relative;
    padding-left: 20px;
    color: var(--ds-ink-3);
  }

  .ds-prose ul li::before {
    content: "";
    position: absolute;
    left: 2px;
    top: 0.85em;
    width: 7px;
    height: 1px;
    background: var(--ds-jade);
  }

  .ds-prose ol { counter-reset: prose; }
  .ds-prose ol li { counter-increment: prose; padding-left: 26px; }
  .ds-prose ol li::before {
    content: counter(prose, decimal-leading-zero);
    position: absolute;
    left: 0;
    font-family: var(--ds-mono);
    font-size: 11px;
    color: var(--ds-jade);
    top: 0.32em;
  }

  .ds-prose blockquote {
    margin-top: 24px;
    padding: 18px 22px;
    background: var(--ds-paper-2);
    border-left: 3px solid var(--ds-jade);
    font-family: var(--ds-serif);
    font-size: 16px;
    color: var(--ds-ink);
  }

  .ds-prose table { margin-top: 22px; font-size: 14px; }
  .ds-prose th,
  .ds-prose td {
    padding: 10px 12px;
    border: 1px solid var(--ds-line);
    text-align: left;
    vertical-align: top;
  }
  .ds-prose th { background: var(--ds-paper-2); font-weight: 600; color: var(--ds-ink); }

  /* ---------- 404 ---------- */
  .ds-404 {
    padding: clamp(50px, 9vw, 110px) 0;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 48px;
    align-items: center;
  }

  .ds-404__code {
    font-family: var(--ds-serif);
    font-size: clamp(96px, 16vw, 200px);
    line-height: 0.9;
    color: var(--ds-ink);
    letter-spacing: -0.03em;
  }

  .ds-404__code span { color: var(--ds-jade); }

  @media (max-width: 1080px) {
    .ds-sec__head { grid-template-columns: 78px minmax(0, 1fr); }
    .ds-sec__note { grid-column: 2; border-left: 0; padding-left: 0; }
    .ds-hero__grid { grid-template-columns: minmax(0, 1fr); }
    .ds-pagehead__grid { grid-template-columns: minmax(0, 1fr); gap: 24px; }
    .ds-article__layout { grid-template-columns: minmax(0, 1fr); }
    .ds-article__side { position: static; }
    .ds-article__side--toc { order: -1; }
  }

  @media (max-width: 900px) {
    .ds-grid--3,
    .ds-grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .ds-split,
    .ds-split--wide { grid-template-columns: minmax(0, 1fr); }
    .ds-404 { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  }

  @media (max-width: 600px) {
    .ds-grid--2,
    .ds-grid--3,
    .ds-grid--4 { grid-template-columns: minmax(0, 1fr); }
    .ds-sec__head { grid-template-columns: minmax(0, 1fr); gap: 14px; align-items: start; }
    .ds-sec__note { grid-column: 1; }
  }
}