/* 技术文档页专用样式：复用 styles.css 的变量与页脚，只补文档版式 */

.docs-page {
  background: var(--paper);
}

.docs {
  max-width: 1120px;
  margin: 0 auto;
  padding: 112px clamp(20px, 5vw, 40px) 88px;
  display: grid;
  grid-template-columns: 216px minmax(0, 1fr);
  gap: 56px;
  align-items: start;
}

/* 目录：桌面端吸顶 */
.docs-toc {
  position: sticky;
  top: 88px;
  font-size: 13px;
  line-height: 1.5;
}
.toc-title {
  margin: 0 0 12px;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 700;
}
.docs-toc ol {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: toc;
  border-left: 1px solid rgba(0, 0, 0, 0.1);
}
.docs-toc li { margin: 0; }
.docs-toc a {
  display: block;
  padding: 5px 0 5px 12px;
  margin-left: -1px;
  border-left: 2px solid transparent;
  color: var(--ink-2);
  text-decoration: none;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.docs-toc a:hover { color: var(--blue); border-left-color: var(--blue); }

/* 正文 */
.docs-body { max-width: 720px; }
.docs-body h1 {
  margin: 0 0 18px;
  font-size: clamp(32px, 4.4vw, 44px);
  line-height: 1.16;
  letter-spacing: -0.022em;
  font-weight: 800;
}
.docs-lead {
  margin: 0 0 12px;
  font-size: 17px;
  line-height: 1.72;
  color: var(--ink-2);
}
.docs-meta {
  margin: 0 0 44px;
  font-size: 12.5px;
  color: var(--ink-3);
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.09);
}

.docs-body section {
  margin: 0 0 48px;
  scroll-margin-top: 88px;
}
.docs-body h2 {
  margin: 0 0 16px;
  font-size: 22px;
  line-height: 1.35;
  letter-spacing: -0.01em;
  font-weight: 700;
}
.docs-body h3 {
  margin: 26px 0 10px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--ink);
}
.docs-body p {
  margin: 12px 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--ink-2);
}
.docs-body b { color: var(--ink); font-weight: 600; }

.docs-list {
  margin: 12px 0;
  padding-left: 20px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--ink-2);
}
.docs-list li { margin: 7px 0; }
.docs-list li::marker { color: rgba(0, 0, 0, 0.28); }

.flow {
  margin: 14px 0;
  padding: 0 0 0 20px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--ink-2);
  counter-reset: step;
}
.flow li { margin: 8px 0; }
.flow li::marker { color: var(--blue); font-weight: 700; }

.docs-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 14px;
}
.docs-table th,
.docs-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  vertical-align: top;
  line-height: 1.6;
}
.docs-table th {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-3);
  font-weight: 700;
  border-bottom-color: rgba(0, 0, 0, 0.16);
  white-space: nowrap;
}
.docs-table td { color: var(--ink-2); }
.docs-table td:first-child { color: var(--ink); font-weight: 500; }

.note {
  font-size: 14px !important;
  line-height: 1.75 !important;
  color: var(--ink-3) !important;
  padding-left: 14px;
  border-left: 2px solid rgba(0, 0, 0, 0.1);
}

.callout {
  font-size: 14.5px !important;
  line-height: 1.75 !important;
  background: rgba(0, 113, 227, 0.045);
  border: 1px solid rgba(0, 113, 227, 0.14);
  border-radius: 10px;
  padding: 14px 16px !important;
  color: var(--ink-2) !important;
}

.docs-glossary {
  margin: 16px 0 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 28px;
}
.docs-glossary > div { margin: 0; }
.docs-glossary dt {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 3px;
}
.docs-glossary dd {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--ink-3);
}

.docs-foot {
  margin: 56px 0 0;
  padding-top: 22px;
  border-top: 1px solid rgba(0, 0, 0, 0.09);
  font-size: 13px;
  color: var(--ink-3);
}
.docs-foot a { color: var(--blue); text-decoration: none; margin-left: 8px; }
.docs-foot a:hover { text-decoration: underline; }

@media (max-width: 900px) {
  .docs {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-top: 96px;
  }
  .docs-toc {
    position: static;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.09);
  }
  .docs-toc ol {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    border-left: 0;
  }
  .docs-toc a {
    padding: 5px 10px;
    border: 1px solid rgba(0, 0, 0, 0.12);
    border-radius: 999px;
    margin-left: 0;
    font-size: 12.5px;
  }
  .docs-body { max-width: none; }
  .docs-body section { scroll-margin-top: 68px; }
  .docs-glossary { grid-template-columns: 1fr; gap: 12px; }
}

@media (max-width: 560px) {
  .docs-table { font-size: 13px; }
  .docs-table th, .docs-table td { padding: 9px 8px; }
  .docs-body p, .docs-list, .flow { font-size: 15px; }
}

@media print {
  .docs-toc, .gnav, .footer { display: none; }
  .docs { grid-template-columns: 1fr; padding-top: 24px; }
  .docs-body section { break-inside: avoid; }
}