/* 商户接入文档页（/docs）：沿用 pay.css 的色板、字体与页眉页脚，只补文档排版。
   中英两份文字都在页面里，按 <html data-lang> 只显示一种；没有脚本时显示中文。 */

html:not([data-lang="en"]) [data-l="en"], html[data-lang="en"] [data-l="zh"] { display: none; }

body.docs::before { top: -320px; }
.doc-wrap {
  flex: 1; width: 100%; max-width: 1080px; margin: 0 auto;
  padding: 24px max(18px, env(safe-area-inset-right, 0px)) 80px max(18px, env(safe-area-inset-left, 0px));
  display: grid; grid-template-columns: 168px minmax(0, 1fr); gap: 64px;
}

/* 目录 */
.toc { position: sticky; top: 28px; align-self: start; display: grid; gap: 2px; padding-top: 6px; }
.toc a {
  font: 400 11px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--faint);
  padding: 9px 0 9px 14px; border-left: 1px solid var(--hair); transition: color .2s, border-color .2s;
}
.toc a:hover { color: var(--fg); border-color: var(--fg-2); }
.toc a.on { color: var(--fg); border-color: var(--fg); }

/* 正文 */
.doc { min-width: 0; max-width: 720px; }
.doc section { padding-block: 56px 8px; border-top: 1px solid var(--hair); scroll-margin-top: 16px; }
.doc section.intro { border-top: 0; padding-top: 18px; }
.doc h1 {
  margin: 14px 0 0; font: 200 clamp(32px, 6vw, 46px)/1.15 var(--sans); letter-spacing: -.01em;
  background: linear-gradient(180deg, #ffffff 0%, #d4d4d4 55%, #8f8f8f 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lede { margin: 16px 0 0; color: var(--fg-2); font-size: 16px; }
.doc h2 { margin: 0 0 22px; display: flex; align-items: baseline; gap: 16px; font: 300 22px/1.3 var(--sans); letter-spacing: .01em; color: var(--fg); }
.idx { font: 400 10px/1 var(--mono); letter-spacing: .2em; color: var(--faint); }
.doc p { margin: 0 0 16px; color: var(--fg-2); }
.doc .note { margin: 14px 0 16px; font-size: 13px; }
.doc a:not(.ext) { color: var(--fg); box-shadow: 0 1px 0 var(--hair-2); }
.doc a:not(.ext):hover { box-shadow: 0 1px 0 var(--fg-2); }
code {
  font: 400 .86em/1 var(--mono); color: var(--fg); padding: 2px 5px; border-radius: 3px;
  background: rgba(255, 255, 255, .05); border: 1px solid var(--hair); white-space: nowrap;
}

.facts { margin: 34px 0 22px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border: 1px solid var(--hair); border-radius: 6px; }
.facts div { padding: 16px 18px; border-left: 1px solid var(--hair); min-width: 0; }
.facts div:first-child { border-left: 0; }
.facts dt { font: 400 10px/1.4 var(--mono); letter-spacing: .22em; text-transform: uppercase; color: var(--faint); }
.facts dd { margin: 8px 0 0; font-size: 13px; color: var(--fg); overflow-wrap: anywhere; }

.steps { margin: 0 0 16px; padding: 0; list-style: none; counter-reset: s; display: grid; gap: 12px; }
.steps li { counter-increment: s; display: grid; grid-template-columns: 28px minmax(0, 1fr); color: var(--fg-2); }
.steps li::before { content: counter(s, decimal-leading-zero); font: 400 11px/2.2 var(--mono); color: var(--faint); }
.plain { margin: 18px 0 16px; padding: 0; list-style: none; display: grid; gap: 10px; }
.plain li { position: relative; padding-left: 20px; color: var(--fg-2); font-size: 14px; }
.plain li::before { content: ""; position: absolute; left: 2px; top: .85em; width: 8px; height: 1px; background: var(--dim); }

.endpoint { margin: 0 0 18px; display: inline-flex; gap: 12px; align-items: center; padding: 9px 14px; border: 1px solid var(--hair-2); border-radius: 999px; font-size: 13px; color: var(--fg); }
.endpoint b { font-weight: 400; font-size: 10px; letter-spacing: .2em; color: var(--black); background: var(--fg); padding: 4px 8px; border-radius: 999px; }

/* 代码块：只在块内横向滚动，页面不出现横向滚动条 */
.code {
  position: relative; margin: 18px 0; border: 1px solid var(--hair); border-radius: 6px;
  background: linear-gradient(180deg, rgba(255, 255, 255, .025), rgba(255, 255, 255, 0) 30%), #040404;
}
.code::before {
  content: attr(data-title); display: block; padding: 11px 16px; border-bottom: 1px solid var(--hair);
  font: 400 10px/1.4 var(--mono); letter-spacing: .2em; text-transform: uppercase; color: var(--faint);
}
.code::after {
  content: ""; position: absolute; left: 10%; right: 10%; top: -1px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--glint), transparent);
}
.code pre { margin: 0; padding: 16px; overflow-x: auto; }
.code pre code { display: block; padding: 0; border: 0; background: none; white-space: pre; font: 300 12.5px/1.7 var(--mono); color: var(--fg-2); }
.code .btn { position: absolute; top: 6px; right: 8px; padding: 6px 12px; }

/* 表格 */
.table { margin: 8px 0 16px; overflow-x: auto; border: 1px solid var(--hair); border-radius: 6px; }
.table table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th {
  text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--hair);
  font: 400 10px/1.4 var(--mono); letter-spacing: .2em; text-transform: uppercase; color: var(--faint); white-space: nowrap;
}
.table td { padding: 11px 14px; border-top: 1px solid var(--hair); color: var(--fg-2); vertical-align: top; }
.table tr:first-child td { border-top: 0; }
.table td.mono { color: var(--fg); white-space: nowrap; font-size: 12px; }
.table td.req { color: var(--fg); font-family: var(--mono); padding-inline: 0; width: 12px; }
.nets-table td { vertical-align: middle; }
.nets-table td:first-child { display: flex; align-items: center; gap: 12px; color: var(--fg); white-space: nowrap; }
.nets-table .logo { filter: grayscale(1) brightness(.9); opacity: .6; transition: filter .2s, opacity .2s; }
.nets-table tr:hover .logo { filter: none; opacity: 1; }
.nets-table td.y, .nets-table td.n { text-align: center; font-size: 9px; color: var(--fg); }
.nets-table td.n { color: var(--faint); font-size: 12px; }
.nets-table th:nth-child(3), .nets-table th:nth-child(4) { text-align: center; }

.states { margin: 0 0 16px; display: grid; gap: 0; border: 1px solid var(--hair); border-radius: 6px; }
.states div { display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 16px; padding: 11px 14px; border-top: 1px solid var(--hair); font-size: 13px; }
.states div:first-child { border-top: 0; }
.states dt { color: var(--fg); font-size: 12px; }
.states dd { margin: 0; color: var(--fg-2); }

@media (max-width: 860px) {
  .doc-wrap { grid-template-columns: minmax(0, 1fr); gap: 0; padding-top: 8px; }
  .toc { display: none; }
}
@media (max-width: 560px) {
  .facts { grid-template-columns: minmax(0, 1fr); }
  .facts div { border-left: 0; border-top: 1px solid var(--hair); }
  .facts div:first-child { border-top: 0; }
  .doc section { padding-top: 44px; }
  .states div { grid-template-columns: 72px minmax(0, 1fr); }
  code { white-space: normal; overflow-wrap: anywhere; }
}