/* ==========================================================================
   soda docs — 文档站样式
   设计语言沿用 soda.hibuka.com 官网：暖橙渐变 accent + 深色底 + 等宽字体做 UI 音，
   但布局换成文档站的三栏结构（左目录 / 中正文 / 右锚点）。
   主题协议与官网、生成器一致：Cookie(soda-theme @ .hibuka.com) > localStorage > auto。
   ========================================================================== */

:root {
  --bg: #262a28; --bg-soft: #2b2f2d; --panel: #313532; --line: #3d443f;
  --text: #ecf2ed; --muted: #a9baaf; --dim: #7e9186;
  --mint: #4ade80; --on-mint: #062412;
  --warm-1: #ff6a3d; --warm-2: #ffc15e;
  --mono: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
  --sans: "Noto Sans SC", -apple-system, "SF Pro Text", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --wrap: 1440px;
  --sidebar-w: 258px;
  --toc-w: 224px;
  color-scheme: dark;
}
:root[data-theme="light"] {
  --bg: #faf9f7; --bg-soft: #f2f0eb; --panel: #ffffff; --line: #e2ded6;
  --text: #1c211e; --muted: #5c665e; --dim: #8b958c;
  --mint: #15803d; --on-mint: #ffffff;
  --warm-1: #e2592c; --warm-2: #d98a1f;
  color-scheme: light;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  background: var(--bg); color: var(--text);
  font-family: var(--sans); font-size: 16px; line-height: 1.78;
  -webkit-font-smoothing: antialiased;
  transition: background .25s, color .25s;
}
a { color: inherit; text-decoration: none; }
code, pre, kbd { font-family: var(--mono); }
::selection { background: color-mix(in srgb, var(--warm-1) 35%, transparent); }

/* ---------- topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 60;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 60%, transparent);
}
.topbar-in {
  max-width: var(--wrap); margin: 0 auto; padding: 0 24px;
  height: 60px; display: flex; align-items: center; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 9px; flex-shrink: 0; }
.brand img { display: block; }
.brand-name {
  font-family: var(--mono); font-size: 19px; font-weight: 700; letter-spacing: -.6px;
  background: linear-gradient(90deg, var(--warm-1), var(--warm-2));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.brand-sub {
  font-family: var(--mono); font-size: 12px; color: var(--dim);
  border-left: 1px solid var(--line); padding-left: 9px;
}
.ver-badge {
  font-family: var(--mono); font-size: 11.5px; color: var(--warm-1);
  border: 1px solid color-mix(in srgb, var(--warm-1) 32%, transparent);
  background: color-mix(in srgb, var(--warm-1) 9%, transparent);
  border-radius: 999px; padding: 2px 9px;
}

.search-box { position: relative; margin-left: auto; display: flex; align-items: center; gap: 8px;
  background: color-mix(in srgb, var(--text) 5%, transparent);
  border: 1px solid color-mix(in srgb, var(--text) 10%, transparent);
  border-radius: 10px; padding: 0 10px; height: 34px; width: 260px;
  color: var(--dim); transition: border-color .15s, width .2s;
}
.search-box:focus-within { border-color: color-mix(in srgb, var(--warm-1) 55%, transparent); width: 300px; }
.search-box input {
  flex: 1; min-width: 0; background: none; border: 0; outline: none;
  color: var(--text); font-family: var(--sans); font-size: 13.5px;
}
.search-box input::placeholder { color: var(--dim); }
.search-box kbd {
  font-size: 11px; color: var(--dim); border: 1px solid var(--line);
  border-radius: 5px; padding: 1px 6px;
}
.search-results {
  position: absolute; top: calc(100% + 8px); right: 0; width: 420px; max-height: 60vh; overflow: auto;
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 6px; box-shadow: 0 24px 60px -18px rgba(0,0,0,.6);
}
.search-results a { display: block; padding: 9px 11px; border-radius: 8px; }
.search-results a:hover, .search-results a.sel { background: color-mix(in srgb, var(--warm-1) 12%, transparent); }
.search-results .sr-title { font-size: 14px; font-weight: 600; }
.search-results .sr-group { font-family: var(--mono); font-size: 11px; color: var(--warm-1); margin-bottom: 2px; }
.search-results .sr-desc { font-size: 12.5px; color: var(--muted); margin-top: 2px; }
.search-results .sr-empty { padding: 14px; color: var(--dim); font-size: 13px; text-align: center; }

.top-links { display: flex; align-items: center; gap: 18px; font-size: 14px; color: var(--muted); }
.top-links a:hover { color: var(--text); }

/* 未翻译链接角标：正文链接回落到中文版时由 build.py 打上 xlate */
a.xlate::after {
  content: "中文";
  font-size: 11px;
  line-height: 1;
  padding: 2px 6px;
  margin-left: 5px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--dim);
  vertical-align: 1px;
  white-space: nowrap;
}
.theme-btn {
  width: 32px; height: 32px; border-radius: 9px; cursor: pointer;
  background: color-mix(in srgb, var(--text) 5%, transparent);
  border: 1px solid color-mix(in srgb, var(--text) 10%, transparent);
  color: var(--text); font-size: 15px; line-height: 1;
  display: flex; align-items: center; justify-content: center;
}
.theme-btn:hover { border-color: color-mix(in srgb, var(--warm-1) 50%, transparent); color: var(--warm-1); }

.menu-btn { display: none; }

/* ---------- layout ---------- */
.layout {
  max-width: var(--wrap); margin: 0 auto; padding: 0 24px;
  display: grid; grid-template-columns: var(--sidebar-w) minmax(0, 1fr) var(--toc-w);
  gap: 40px; align-items: start;
}

/* ---------- sidebar ---------- */
.sidebar {
  position: sticky; top: 60px; height: calc(100vh - 60px);
  overflow-y: auto; padding: 30px 8px 60px 0;
  border-right: 1px solid color-mix(in srgb, var(--line) 50%, transparent);
  scrollbar-width: thin;
}
.side-group { margin-bottom: 26px; }
.side-group-title {
  font-family: var(--mono); font-size: 11px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--dim); margin-bottom: 9px; padding-left: 12px;
}
.side-nav ul { list-style: none; }
.side-nav li { margin: 1px 0; }
.side-link {
  display: block; padding: 6px 12px; border-radius: 8px; font-size: 14px; color: var(--muted);
  border-left: 2px solid transparent; transition: background .13s, color .13s;
}
.side-link:hover { background: color-mix(in srgb, var(--text) 5%, transparent); color: var(--text); }
.side-link.active {
  color: var(--warm-1); font-weight: 600;
  background: linear-gradient(90deg, color-mix(in srgb, var(--warm-1) 13%, transparent), transparent 80%);
  border-left-color: var(--warm-1);
}

/* ---------- main ---------- */
.main { min-width: 0; padding: 40px 0 90px; }
.doc { max-width: 780px; }

.doc h1 {
  font-size: clamp(30px, 4vw, 40px); line-height: 1.2; letter-spacing: -1px;
  font-weight: 700; margin-bottom: 12px;
}
.doc h1 + p { font-size: 17.5px; color: var(--muted); margin-bottom: 34px;
  padding-bottom: 26px; border-bottom: 1px solid color-mix(in srgb, var(--line) 55%, transparent); }
.doc h2 {
  font-size: 25px; letter-spacing: -.5px; font-weight: 700;
  margin: 52px 0 16px; padding-top: 8px;
}
.doc h3 { font-size: 19px; font-weight: 700; margin: 34px 0 12px; }
.doc h4 { font-size: 16px; font-weight: 700; margin: 26px 0 10px; color: var(--muted); }
.doc p { margin: 14px 0; }
.doc ul, .doc ol { margin: 14px 0 14px 24px; }
.doc li { margin: 6px 0; }
.doc li > ul, .doc li > ol { margin: 6px 0; }
.doc strong { color: var(--text); font-weight: 700; }
.doc em { color: var(--muted); font-style: normal;
  border-bottom: 1px dotted color-mix(in srgb, var(--warm-2) 60%, transparent); }
.doc hr { border: 0; border-top: 1px solid color-mix(in srgb, var(--line) 60%, transparent); margin: 34px 0; }

.anchor {
  margin-left: 9px; color: var(--dim); opacity: 0; font-weight: 400;
  transition: opacity .15s; font-family: var(--mono); font-size: .8em;
}
h1:hover .anchor, h2:hover .anchor, h3:hover .anchor, h4:hover .anchor { opacity: 1; }
.anchor:hover { color: var(--warm-1); }

/* 行内代码 */
.doc :not(pre) > code {
  background: color-mix(in srgb, var(--warm-2) 11%, transparent);
  border: 1px solid color-mix(in srgb, var(--warm-2) 20%, transparent);
  color: color-mix(in srgb, var(--warm-2) 88%, var(--text));
  border-radius: 5px; padding: 1.5px 6px; font-size: 13.5px;
}
:root[data-theme="light"] .doc :not(pre) > code { color: color-mix(in srgb, var(--warm-1) 78%, var(--text)); }

/* 代码块 */
.code {
  margin: 20px 0; border-radius: 12px; overflow: hidden;
  background: color-mix(in srgb, var(--bg) 78%, #000 22%);
  border: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
}
:root[data-theme="light"] .code { background: #f4f2ec; }
.code-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 7px 12px 7px 14px; border-bottom: 1px solid color-mix(in srgb, var(--line) 55%, transparent);
  background: color-mix(in srgb, var(--text) 3%, transparent);
}
.code-lang {
  font-family: var(--mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--dim);
}
.code-copy {
  font-family: var(--mono); font-size: 11px; color: var(--muted); cursor: pointer;
  background: none; border: 1px solid transparent; border-radius: 6px; padding: 2px 8px;
}
.code-copy:hover { color: var(--warm-1); border-color: color-mix(in srgb, var(--warm-1) 35%, transparent); }
.code-copy.done { color: var(--mint); }
.code pre { padding: 15px 16px; overflow-x: auto; font-size: 13.5px; line-height: 1.68; }
.code code { font-size: inherit; background: none; border: 0; padding: 0; color: var(--text); }

/* Mermaid 图 */
.mermaid {
  margin: 24px 0; padding: 14px 10px; overflow-x: auto; text-align: center;
  border: 1px solid color-mix(in srgb, var(--line) 60%, transparent);
  border-radius: 12px;
  background: color-mix(in srgb, var(--bg) 88%, var(--text) 12%);
}
:root[data-theme="light"] .mermaid { background: #faf9f5; }
.mermaid:not([data-processed]) {
  white-space: pre; text-align: left; font-family: var(--mono); font-size: 13px;
  color: var(--muted);
}
.mermaid svg { max-width: 100%; height: auto; }

/* 语法高亮 */
.hl-k { color: var(--warm-1); font-weight: 600; }
.hl-s { color: var(--mint); }
.hl-c { color: var(--dim); font-style: italic; }
.hl-a { color: var(--warm-2); }
.hl-t { color: color-mix(in srgb, var(--warm-2) 80%, var(--text)); }
.hl-n { color: color-mix(in srgb, var(--mint) 80%, var(--warm-2)); }
.hl-v { color: var(--warm-2); }

/* 表格 */
.table-wrap { margin: 20px 0; overflow-x: auto; border-radius: 10px;
  border: 1px solid color-mix(in srgb, var(--line) 65%, transparent); }
.doc table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.doc th {
  text-align: left; font-weight: 700; font-size: 13px; letter-spacing: .04em;
  padding: 11px 14px; background: color-mix(in srgb, var(--text) 4%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent); white-space: nowrap;
}
.doc td { padding: 11px 14px; border-bottom: 1px solid color-mix(in srgb, var(--line) 40%, transparent);
  vertical-align: top; }
.doc tbody tr:last-child td { border-bottom: 0; }
.doc tbody tr:hover { background: color-mix(in srgb, var(--text) 2.5%, transparent); }
.doc td code { white-space: nowrap; }

/* 提示块 */
.callout {
  margin: 22px 0; border-radius: 12px; overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--line) 65%, transparent);
  border-left: 3px solid var(--dim);
  background: color-mix(in srgb, var(--text) 3.5%, transparent);
}
.callout-title {
  font-family: var(--mono); font-size: 11.5px; letter-spacing: .12em; text-transform: uppercase;
  padding: 9px 16px 0; color: var(--dim);
}
.callout-body { padding: 6px 16px 14px; font-size: 14.5px; }
.callout-body > p:first-child { margin-top: 4px; }
.callout-body > p:last-child { margin-bottom: 0; }
.callout-note { border-left-color: var(--mint); }
.callout-note .callout-title { color: var(--mint); }
.callout-tip { border-left-color: var(--warm-2); }
.callout-tip .callout-title { color: var(--warm-2); }
.callout-warn { border-left-color: var(--warm-1); }
.callout-warn .callout-title { color: var(--warm-1); }
.callout-important { border-left-color: color-mix(in srgb, var(--warm-2) 70%, var(--warm-1)); }
.callout-important .callout-title { color: var(--warm-1); }
.callout-danger { border-left-color: #ef4444; }
.callout-danger .callout-title { color: #ef4444; }

/* 引用 */
blockquote {
  margin: 20px 0; padding: 4px 0 4px 18px;
  border-left: 3px solid color-mix(in srgb, var(--line) 90%, transparent);
  color: var(--muted);
}

/* 链接 */
.doc p a, .doc li a { color: var(--warm-1); border-bottom: 1px solid color-mix(in srgb, var(--warm-1) 35%, transparent); }
.doc p a:hover, .doc li a:hover { border-bottom-color: var(--warm-1); }

/* ---------- toc ---------- */
.toc-wrap { position: sticky; top: 60px; padding: 40px 0 60px; max-height: calc(100vh - 60px); overflow-y: auto; }
.toc-title {
  font-family: var(--mono); font-size: 11px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--dim); margin-bottom: 11px;
}
.toc ul { list-style: none; border-left: 1px solid color-mix(in srgb, var(--line) 60%, transparent); }
.toc li a {
  display: block; padding: 4px 0 4px 13px; font-size: 13.2px; color: var(--muted);
  border-left: 2px solid transparent; margin-left: -1px; line-height: 1.5;
}
.toc li a:hover { color: var(--text); }
.toc li a.active { color: var(--warm-1); border-left-color: var(--warm-1); }
.toc-h3 a { padding-left: 25px; font-size: 12.6px; color: var(--dim); }
.toc-empty { font-size: 13px; color: var(--dim); }

/* ---------- pager / footer ---------- */
.pager {
  display: flex; gap: 16px; justify-content: space-between;
  margin-top: 60px; padding-top: 26px;
  border-top: 1px solid color-mix(in srgb, var(--line) 55%, transparent);
}
.pager-link {
  display: flex; flex-direction: column; gap: 2px; padding: 11px 17px; border-radius: 10px;
  border: 1px solid color-mix(in srgb, var(--line) 65%, transparent);
  font-size: 14px; color: var(--muted); max-width: 45%;
}
.pager-link span { font-family: var(--mono); font-size: 11px; color: var(--dim); }
.pager-link:hover { border-color: color-mix(in srgb, var(--warm-1) 45%, transparent); color: var(--warm-1); }
.pager-next { margin-left: auto; text-align: right; }

.doc-foot { margin-top: 46px; font-size: 13px; color: var(--dim); }
.doc-foot p { margin: 4px 0; }
.doc-foot a { color: var(--muted); border-bottom: 1px solid var(--line); }
.doc-foot a:hover { color: var(--warm-1); }
.doc-foot code { font-size: 12px; color: var(--muted); }

/* ---------- 首页专用 ---------- */
.hero {
  position: relative; padding: 46px 0 34px; overflow: hidden;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 55%, transparent);
}
.hero::before {
  content: ""; position: absolute; inset: -40% -20% auto; height: 120%; pointer-events: none;
  background: radial-gradient(ellipse 46% 52% at 32% 8%, rgba(255,106,61,.13), transparent 66%),
              radial-gradient(ellipse 38% 42% at 72% 22%, rgba(74,222,128,.07), transparent 68%);
}
:root[data-theme="light"] .hero::before {
  background: radial-gradient(ellipse 46% 52% at 32% 8%, rgba(226,89,44,.08), transparent 66%),
              radial-gradient(ellipse 38% 42% at 72% 22%, rgba(21,128,61,.05), transparent 68%);
}
.hero > * { position: relative; z-index: 1; }
.hero h1 {
  font-size: clamp(34px, 5vw, 46px); line-height: 1.15; letter-spacing: -1.4px; margin-bottom: 16px;
}
.hero .lede { font-size: 18px; color: var(--muted); max-width: 640px; }
.hero .hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.hero-btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 11px 22px; border-radius: 999px;
  font-weight: 700; font-size: 14.5px;
}
.hero-btn.primary { background: var(--mint); color: var(--on-mint); }
.hero-btn.primary:hover { box-shadow: 0 10px 30px -10px color-mix(in srgb, var(--mint) 60%, transparent); }
.hero-btn.ghost { border: 1px solid color-mix(in srgb, var(--text) 20%, transparent); color: var(--text); }
.hero-btn.ghost:hover { border-color: var(--warm-1); color: var(--warm-1); }

.card-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin: 22px 0; }
.card {
  padding: 18px 20px; border-radius: 13px;
  background: color-mix(in srgb, var(--text) 3.5%, transparent);
  border: 1px solid color-mix(in srgb, var(--text) 8%, transparent);
}
.card h3 { margin: 0 0 6px; font-size: 15.5px; }
.card h3 a { color: var(--text); }
.card h3 a:hover { color: var(--warm-1); }
.card p { margin: 0; font-size: 13.6px; color: var(--muted); line-height: 1.65; }
.card .card-tag {
  display: inline-block; font-family: var(--mono); font-size: 10.5px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--warm-1); margin-bottom: 7px;
}

/* 四层架构图（首页） */
.layers { display: flex; flex-direction: column; gap: 10px; margin: 22px 0; }
.layer {
  display: grid; grid-template-columns: 200px 1fr; gap: 20px; align-items: center;
  padding: 14px 18px; border-radius: 13px;
  background: color-mix(in srgb, var(--text) 3.5%, transparent);
  border: 1px solid color-mix(in srgb, var(--text) 8%, transparent);
}
.layer .lname { font-family: var(--mono); font-size: 15px; font-weight: 700; }
.layer .lname small {
  display: block; font-family: var(--sans); font-size: 12px; color: var(--dim);
  font-weight: 400; margin-top: 3px; letter-spacing: .05em;
}
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  padding: 5px 12px; border-radius: 999px;
  background: color-mix(in srgb, var(--text) 5%, transparent);
  border: 1px solid color-mix(in srgb, var(--text) 9%, transparent);
  font-family: var(--mono); font-size: 12px; color: var(--muted);
}
.layer:nth-child(1) .lname { color: var(--warm-2); }
.layer:nth-child(2) .lname { color: var(--warm-1); }
.layer:nth-child(3) .lname { color: var(--mint); }
.layer:nth-child(4) .lname { color: var(--dim); }

/* 流程图（首页） */
.flow { margin: 26px 0; }
.flow-step {
  display: grid; grid-template-columns: 30px 1fr; gap: 14px; align-items: start;
  padding: 11px 0; border-bottom: 1px dashed color-mix(in srgb, var(--line) 70%, transparent);
}
.flow-step:last-child { border-bottom: 0; }
.flow-num {
  width: 26px; height: 26px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-size: 12px; font-weight: 700;
  background: color-mix(in srgb, var(--warm-1) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--warm-1) 35%, transparent); color: var(--warm-1);
}
.flow-body h4 { margin: 2px 0 3px; font-size: 14.5px; color: var(--text); }
.flow-body p { margin: 0; font-size: 13.5px; color: var(--muted); }
.flow-body code { font-size: 12.5px; }

/* ---------- responsive ---------- */
@media (max-width: 1240px) {
  .layout { grid-template-columns: var(--sidebar-w) minmax(0, 1fr); }
  .toc-wrap { display: none; }
}
@media (max-width: 900px) {
  .layout { grid-template-columns: minmax(0, 1fr); padding: 0 18px; }
  .sidebar {
    position: fixed; top: 0; left: 0; z-index: 80; width: 280px; height: 100vh;
    background: var(--bg-soft); border-right: 1px solid var(--line);
    transform: translateX(-100%); transition: transform .22s ease; padding-top: 20px;
  }
  .sidebar.open { transform: none; }
  .scrim { position: fixed; inset: 0; z-index: 70; background: rgba(0,0,0,.55); }
  .menu-btn {
    display: flex; flex-direction: column; gap: 4px; justify-content: center;
    width: 32px; height: 32px; border: 0; background: none; cursor: pointer; padding: 0 6px;
  }
  .menu-btn span { display: block; height: 2px; background: var(--text); border-radius: 2px; }
  .search-box { width: 160px; }
  .search-box:focus-within { width: 200px; }
  .search-box kbd { display: none; }
  .top-links a { display: none; }
  .top-links a.lang-btn { display: inline-block; }
  .card-grid { grid-template-columns: 1fr; }
  .layer { grid-template-columns: 1fr; gap: 10px; }
  .pager { flex-direction: column; }
  .pager-link { max-width: 100%; }
}
@media (max-width: 560px) {
  .search-box { display: none; }
  .brand-sub { display: none; }
}