/* A readable, searchable reference page; styles stay local to cell handling. */
.page-matter .docpage{width:100%;max-width:1320px}
.page-matter .support-nav{gap:12px;margin-bottom:36px;padding-bottom:24px;border-bottom:1px solid var(--line)}
.page-matter .support-nav a{min-height:48px;padding:10px 22px;font-size:16px}
.matter-guide{scroll-margin-top:24px}
.matter-guide [hidden]{display:none!important}
.matter-head{display:flex;align-items:center;justify-content:space-between;gap:40px;margin-bottom:24px}
.matter-head__intro{min-width:0}
.matter-head h2{margin:0;color:var(--ink);font-size:30px;font-weight:600;line-height:1.5;letter-spacing:.02em}
.matter-head__intro>p{margin:9px 0 0;color:#647087;font-size:16px;line-height:1.8}
.matter-tools{width:500px;max-width:49%;flex:none}
.matter-search{display:flex;align-items:center;gap:12px;min-height:56px;padding:0 8px 0 18px;border:1px solid #ced9ec;border-radius:10px;background:#fff;transition:border-color .18s,box-shadow .18s}
.matter-search:focus-within{border-color:var(--blue-600);box-shadow:0 0 0 3px #edf2fc}
.matter-search>svg{flex:none;color:#6a7c9e}
.matter-search input{width:100%;min-width:0;height:54px;padding:0;border:0;outline:0;background:transparent;color:var(--ink);font:inherit;font-size:16px;box-shadow:none}
.matter-search input::placeholder{color:#79859a;opacity:1}
.matter-search input::-webkit-search-cancel-button{display:none}
.matter-search button{display:grid;place-items:center;width:40px;height:40px;flex:none;padding:0;border:0;border-radius:6px;background:transparent;color:#60718c;cursor:pointer}
.matter-search button:hover{color:var(--blue-600);background:var(--blue-50)}
.matter-search button:disabled{visibility:hidden}
.matter-tools__meta{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:10px;min-height:28px}
.matter-tools__meta p{margin:0;color:#65748b;font-size:13px;line-height:1.6}
.matter-tools__meta button{flex:none;padding:4px 0;border:0;background:none;color:var(--blue-600);font:inherit;font-size:14px;font-weight:500;cursor:pointer}
.matter-tools__meta button:hover{text-decoration:underline;text-underline-offset:4px}
.matter-tools__meta button:disabled{color:#8d98aa;cursor:default;text-decoration:none}
.page-matter .docpage__source{margin:0 0 30px;padding:14px 18px;border-left:3px solid #b7c9ef;background:#f6f8fc;color:#657188;font-size:14px;line-height:1.9}
.page-matter .docpage__source a{display:inline-block;margin-left:8px}
.matter-layout{display:flex;align-items:flex-start;gap:32px}
.matter-categories{position:sticky;top:calc(var(--hdr-h,146px) + 24px);flex:0 0 218px;padding:20px 12px 18px;border:1px solid #e4eaf4;border-radius:12px;background:#f8faff}
.matter-categories>h3{margin:0 12px 14px;color:#66758d;font-size:14px;font-weight:500}
.matter-categories__list{display:grid;gap:5px}
.matter-categories button{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;min-height:47px;padding:11px 13px;border:1px solid transparent;border-radius:7px;background:transparent;color:#465571;text-align:left;font:inherit;font-size:15px;line-height:1.6;cursor:pointer;transition:background .18s,color .18s,border-color .18s}
.matter-categories button b{display:inline-flex;align-items:center;justify-content:center;min-width:26px;height:24px;padding:0 5px;border-radius:5px;color:#6a7b97;font-size:12px;font-weight:500;font-variant-numeric:tabular-nums;background:#edf1f8}
.matter-categories button:hover{color:var(--blue-600);background:#edf2fc}
.matter-categories button.is-on{border-color:var(--blue-600);background:var(--blue-600);color:#fff;font-weight:600}
.matter-categories button.is-on b{color:#fff;background:rgba(255,255,255,.18)}
.matter-categories__tip{margin:18px 12px 0;padding-top:16px;border-top:1px solid #e2e9f4;color:#758298;font-size:12px;line-height:1.8}
.matter-questions{flex:1;min-width:0}
.matter-group{margin:0 0 28px;border:1px solid #dce4f1;border-radius:12px;overflow:hidden;background:#fff}
.matter-group__head{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 24px;background:#f7f9fd}
.matter-group__head h3{margin:0;font-size:20px;font-weight:600;line-height:1.5;color:var(--ink)}
.matter-group__head p{margin:0;font-size:13px;line-height:1.6;color:#6e7d96}
.page-matter .docpage__qa{margin:0;border:0;border-top:1px solid #e4eaf4;border-radius:0;box-shadow:none;scroll-margin-top:24px;transition:background .18s}
.page-matter .docpage__qa[open]{border-color:#e0e8f5;background:#f7faff;box-shadow:none}
.page-matter .docpage__qa summary{gap:16px;min-height:74px;padding:20px 24px;color:#243049;font-size:17px;font-weight:600;line-height:1.8;cursor:pointer}
.page-matter .docpage__qa summary:hover{background:#f7faff;color:var(--blue-600)}
.page-matter .docpage__qa[open] summary{color:var(--blue-600)}
.page-matter .docpage__qa summary b{align-self:flex-start;flex:0 0 24px;padding-top:2px;color:#7a8ca9;font-size:14px;line-height:1.9;font-weight:500;font-variant-numeric:tabular-nums}
.page-matter .docpage__qa[open] summary b{color:var(--blue-600)}
.matter-question{flex:1;min-width:0;overflow-wrap:anywhere}
.page-matter .docpage__qa summary svg{flex:none;width:18px;height:18px;margin-left:4px;color:#8493aa}
.page-matter .docpage__qa[open] summary svg{color:var(--blue-600)}
.page-matter .docpage__ans{padding:0 64px 24px;color:#526078;font-size:17px;line-height:1.95;overflow-wrap:anywhere}
.page-matter .docpage__ans p{margin:0}
.matter-guide :is(button,a):focus-visible{outline:2px solid var(--blue-600);outline-offset:4px}
.page-matter .docpage__qa summary:focus-visible{outline:2px solid var(--blue-600);outline-offset:-4px;border-radius:6px}
.matter-empty{padding:56px 24px;text-align:center;border:1px solid var(--line);border-radius:12px;background:#f8faff}
.matter-empty h3{margin:0;font-size:21px;color:var(--ink)}
.matter-empty p{margin:12px 0 24px;color:#66758d;font-size:16px;line-height:1.8}
.matter-empty button{padding:12px 20px;border:1px solid var(--blue-600);border-radius:7px;background:var(--blue-600);color:#fff;font:inherit;font-size:15px;cursor:pointer}
.matter-help{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-top:28px;padding:24px 0;border-top:1px solid var(--line)}
.matter-help h3{margin:0;font-size:17px;font-weight:600;color:var(--ink)}
.matter-help p{margin:8px 0 0;font-size:14px;line-height:1.8;color:#66758d}
.matter-help a{flex:none;display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 18px;border:1px solid #c2d0ea;border-radius:7px;color:var(--blue-600);background:#fff;font-size:14px;font-weight:500}
.matter-help a:hover{background:var(--blue-50);border-color:var(--blue-600)}
.matter-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(min-width:961px) and (max-width:1440px){
  .page-matter .docpage{width:calc(100% - 64px)}
}
@media(max-width:1100px){
  .matter-layout{gap:24px}
  .matter-categories{flex-basis:192px}
  .matter-head{gap:24px}
  .matter-head h2{font-size:27px}
  .matter-head__intro>p{font-size:15px}
  .matter-search input{font-size:15px}
}
@media(max-width:960px){
  .matter-head{align-items:stretch;flex-direction:column;gap:22px}
  .matter-tools{width:100%;max-width:none}
  .matter-layout{flex-direction:column;gap:24px}
  .matter-categories{position:static;flex:auto;width:100%;padding:16px}
  .matter-categories>h3{margin:0 0 12px}
  .matter-categories__list{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
  .matter-categories button{font-size:14px;gap:8px;padding:9px 10px;background:#fff;border-color:#e2e9f4}
  .matter-categories__tip{display:none}
  .matter-questions{width:100%;flex:auto}
}
@media(max-width:600px){
  .page-matter .support-nav{gap:8px;margin-bottom:26px;padding-bottom:20px}
  .page-matter .support-nav a{padding:9px 12px;min-height:44px;font-size:14px}
  .matter-head{gap:20px;margin-bottom:20px}
  .matter-head h2{font-size:25px}
  .matter-head__intro>p{font-size:14px;line-height:1.8}
  .matter-search{min-height:50px;gap:9px;padding-left:12px}
  .matter-search input{height:48px;font-size:14px}
  .matter-search>svg{width:18px;height:18px}
  .matter-search button{width:32px;height:36px}
  .matter-tools__meta{gap:8px;flex-wrap:wrap}
  .matter-tools__meta p{font-size:12px}
  .matter-tools__meta button{font-size:13px;min-height:32px}
  .page-matter .docpage__source{padding:12px 14px;margin-bottom:22px;font-size:13px}
  .page-matter .docpage__source a{margin-left:0}
  .matter-categories{padding:14px 12px}
  .matter-categories__list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .matter-categories button{min-height:44px}
  .matter-categories button:first-child{grid-column:1/-1}
  .matter-group{margin-bottom:22px;border-radius:10px}
  .matter-group__head{align-items:flex-start;flex-direction:column;gap:3px;padding:17px 16px}
  .matter-group__head h3{font-size:18px}
  .matter-group__head p{font-size:12px}
  .page-matter .docpage__qa summary{gap:10px;min-height:68px;padding:18px 16px;font-size:15px;line-height:1.8}
  .page-matter .docpage__qa summary b{flex-basis:20px;font-size:12px;padding-top:2px}
  .page-matter .docpage__qa summary svg{width:16px;height:16px;margin-left:0}
  .page-matter .docpage__ans{padding:0 18px 22px 46px;font-size:15px;line-height:1.9}
  .matter-help{align-items:flex-start;flex-direction:column;gap:18px;padding:22px 0}
  .matter-help p{font-size:13px}
  .matter-help a{width:100%}
  .matter-empty{padding:36px 18px}
  .matter-empty h3{font-size:19px}
  .matter-empty p{font-size:14px}
}
@media(prefers-reduced-motion:reduce){
  .matter-guide *{scroll-behavior:auto!important;transition:none!important}
}