/*
 * theme.css —— 全站主题层（固定路径，不走 Astro 打包、无内容哈希文件名）。
 *
 * 设计意图：配色、字体、字号、正文排版这类高频微调全部集中在这里。
 * 改完只需重新上传本文件，不必重跑 build —— 上传命令：
 *   tcb hosting deploy public/theme.css theme.css -e miniapp-d6gnnz4wae2016c4e --yes
 * 然后把 src/site.config.ts 里的 themeVersion +1，让浏览器缓存失效。
 */

:root {
  --paper: #f5f1e8;
  --ink: #17201c;
  --excel: #18794e;
  --rust: #e0642e;
  --gold: #c69a3b;
  --mist: #dce5de;
  --white: #fffdf8;
  --line: rgba(24, 33, 27, 0.18);
  --muted: #5d685f;
  --serif: 'LXGW WenKai', 'Noto Serif SC', 'Source Han Serif SC', 'STZhongsong', serif;
  --sans: 'IBM Plex Sans Condensed', 'Noto Sans SC', 'Source Han Sans SC', 'Microsoft YaHei', sans-serif;
  --mono: 'IBM Plex Mono', 'Cascadia Mono', monospace;
}

* { box-sizing: border-box; }

html { overflow-x: clip; scroll-behavior: smooth; }

body {
  margin: 0;
  overflow-x: clip;
  color: var(--ink);
  background:
    linear-gradient(rgba(24, 33, 27, 0.025) 1px, transparent 1px),
    var(--paper);
  background-size: 100% 28px;
  font-family: var(--sans);
  line-height: 1.75;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: radial-gradient(circle at 90% 8%, rgba(33, 115, 70, 0.11), transparent 26rem);
  content: '';
  pointer-events: none;
}

a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.24em; }
a:hover { color: var(--excel); }
img { max-width: 100%; height: auto; }
button, input { font: inherit; }

.shell { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.section { padding-block: clamp(64px, 9vw, 120px); }
.eyebrow {
  margin: 0 0 14px;
  color: var(--rust);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1, h2, h3 { font-family: var(--serif); line-height: 1.24; letter-spacing: -0.025em; text-wrap: balance; }
h1 { font-size: clamp(2.45rem, 5vw, 4.8rem); }
h2 { font-size: clamp(1.85rem, 3.2vw, 3.1rem); }
h3 { font-size: clamp(1.2rem, 1.7vw, 1.55rem); }

.display-title { margin: 0; max-width: 13ch; font-weight: 800; line-height: 1.1; letter-spacing: -0.035em; }
.lede { max-width: 46rem; color: var(--muted); font-size: clamp(1.05rem, 1.4vw, 1.23rem); }

.button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 46px;
  padding: 10px 18px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--white);
  font-weight: 600;
  text-decoration: none;
  transition: transform 160ms ease, background 160ms ease;
}
.button:hover { transform: translateY(-2px); background: var(--excel); color: white; }
.button.secondary { background: transparent; color: var(--ink); }
.button.secondary:hover { background: var(--mist); color: var(--ink); }

.section-heading {
  display: grid;
  grid-template-columns: 4fr 7fr;
  gap: 40px;
  align-items: end;
  padding-bottom: 22px;
  border-bottom: 2px solid var(--ink);
}
.section-heading h2 { margin: 0; }
.section-heading p { margin: 0; color: var(--muted); }

.editorial-list { border-top: 1px solid var(--line); }
.editorial-row {
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr) 180px 24px;
  gap: 24px;
  align-items: center;
  padding: 25px 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}
.editorial-row:hover { color: var(--ink); background: rgba(255, 253, 248, 0.55); }
.editorial-row .index { color: var(--rust); font-family: var(--mono); }
.editorial-row h3 { margin: 0; font-family: var(--sans); font-size: clamp(1.08rem, 1.5vw, 1.32rem); font-weight: 650; line-height: 1.48; letter-spacing: -0.012em; }
.editorial-row .meta { color: var(--muted); font-size: 0.9rem; }

.tag { display: inline-flex; padding: 3px 9px; border: 1px solid var(--line); font-size: 0.78rem; }

.prose {
  font-size: 1.03rem;
  overflow-wrap: anywhere;
}
.prose h2 { margin-top: 2.4em; padding-top: 0.6em; border-top: 1px solid var(--line); }
.prose h3 { margin-top: 2em; }
.prose p, .prose li { max-width: 48rem; }
.prose blockquote {
  margin: 2rem 0;
  padding: 1rem 1.4rem;
  border-left: 4px solid var(--rust);
  background: var(--white);
  color: #3e493f;
}
.prose img { display: block; margin: 2rem 0; border: 1px solid var(--line); background: white; }
.prose pre { overflow-x: auto; padding: 1.2rem; border: 1px solid var(--line); background: #fdfbf5 !important; }
.prose code { padding: 1px 6px; border: 1px solid var(--line); background: var(--paper); font-family: var(--mono); font-size: 0.92em; }
.prose pre code { padding: 0; border: 0; background: transparent; font-size: inherit; }
/* 宽表格在窄屏整体横向滚动，避免被 overflow-x:clip 裁掉右侧列 */
.prose table { display: block; width: max-content; max-width: 100%; overflow-x: auto; border-collapse: collapse; }
.prose th, .prose td { padding: 10px; border: 1px solid var(--line); text-align: left; }
/* 正文首个 h2 顶到内容起点，不要分隔线和大上边距 */
.prose > h2:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
/* 「原始提交内容」折叠块：由 import 脚本写进 markdown，样式需全局 */
.prose details { margin: 3rem 0 0; padding: 0 18px 6px; border: 1px dashed var(--line); background: var(--white); }
.prose details summary { display: flex; align-items: center; gap: 10px; margin: 0 -18px; padding: 13px 18px; cursor: pointer; user-select: none; list-style: none; font-family: var(--mono); font-size: 0.84rem; color: var(--muted); }
.raw-archive-copy { margin-left: auto; flex: 0 0 auto; padding: 6px 12px; border: 1px solid var(--line); background: var(--white); font-family: var(--mono); font-size: 0.76rem; font-weight: 600; color: var(--muted); cursor: pointer; }
.raw-archive-copy:hover { border-color: var(--excel); color: var(--excel); }
.prose details summary::-webkit-details-marker { display: none; }
.prose details summary::before { content: '▸ '; }
.prose details[open] summary { border-bottom: 1px dashed var(--line); color: var(--ink); }
.prose details[open] summary::before { content: '▾ '; }
.prose details > summary:last-child { margin-bottom: 0; }
/* 折叠块内是网友原贴 markdown，自带标题层级：视觉降级，避免与页面结构竞争 */
.prose details :is(h1, h2, h3, h4) { margin: 1.4em 0 0.4em; padding-top: 0; border-top: 0; font-size: 1.02rem; }
.prose details :is(h1, h2, h3, h4):first-child { margin-top: 0; }

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 8fr) minmax(210px, 3fr);
  gap: clamp(40px, 7vw, 100px);
  align-items: start;
}
.content-aside { position: sticky; top: 100px; padding-top: 18px; border-top: 3px solid var(--excel); }
.content-aside dl { margin: 0; }
.content-aside div { padding: 12px 0; border-bottom: 1px solid var(--line); }
.content-aside dt { color: var(--muted); font-size: 0.76rem; letter-spacing: 0.08em; }
.content-aside dd { margin: 3px 0 0; font-weight: 600; }

.empty-image-note { color: var(--muted); }

@media (max-width: 800px) {
  .shell { width: min(100% - 28px, 680px); }
  .section { padding-block: clamp(52px, 12vw, 76px); }
  /* minmax(0,1fr)：1fr 的隐式最小值是 auto，会被宽表格/代码块撑破网格 */
  .section-heading, .content-grid { grid-template-columns: minmax(0, 1fr); }
  .editorial-row { grid-template-columns: 54px 1fr 20px; gap: 12px; }
  .editorial-row .meta { grid-column: 2; }
  .content-aside { position: static; }
  .prose blockquote { margin: 1.4rem 0; padding: 0.9rem 1.1rem; }
  .prose img { margin: 1.4rem 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}