@charset "UTF-8";
/* 质镜使用教程 — same paper, ink and copper as the home page. */
:root {
  --paper: #f6f5f1; --card: #fbfaf7; --ink: #252620; --muted: #6d7063; --line: #e2ded4;
  --gold: #d5b38b; --copper: #a8794c; --dark: #151613; --warn: #a2532f; --warn-bg: #f7ebe3;
  --sans: "Inter", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 15px/1.8 var(--sans); -webkit-font-smoothing: antialiased; }
h1, h2, h3, p, ol, ul, dl, dd, figure { margin: 0; }
a { color: inherit; }
img { display: block; max-width: 100%; height: auto; }
code { font-family: ui-monospace, Consolas, monospace; font-size: 13px; background: #ece8df; padding: 2px 6px; border-radius: 4px; }

.guide-header { position: sticky; top: 0; z-index: 10; background: #171612f2; color: #f2ede4; border-bottom: 1px solid #d9b78716; backdrop-filter: blur(10px); }
.guide-header-inner { max-width: 1180px; margin: 0 auto; padding: 12px 24px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.guide-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-size: 19px; font-weight: 600; letter-spacing: 2px; }
.guide-brand img { border-radius: 8px; }
.guide-brand small { display: block; font-size: 10px; font-weight: 400; letter-spacing: 1.6px; color: #b9a78f; }
.guide-header-links { display: flex; align-items: center; gap: 18px; font-size: 13px; }
.guide-header-links a { text-decoration: none; color: #d8d0c3; }
.guide-header-links a:hover { color: #fff; }
.guide-cta { display: inline-flex; align-items: center; justify-content: center; padding: 8px 16px; border-radius: 6px; background: var(--gold); color: #29231b !important; font-weight: 600; text-decoration: none; }
.guide-cta:hover { background: #dcbe9a; }
.guide-cta.big { padding: 14px 30px; font-size: 15px; }

.guide-layout { max-width: 1180px; margin: 0 auto; padding: 40px 24px 80px; display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 56px; }
.guide-toc { position: sticky; top: 92px; align-self: start; font-size: 13.5px; }
.toc-title { font-size: 11px; letter-spacing: 2px; color: var(--copper); font-weight: 600; margin-bottom: 10px; }
.guide-toc ol { list-style: none; padding: 0; counter-reset: toc; }
.guide-toc li { counter-increment: toc; }
.guide-toc a { display: block; padding: 6px 0 6px 12px; border-left: 2px solid var(--line); color: var(--muted); text-decoration: none; }
.guide-toc a::before { content: counter(toc, decimal-leading-zero) "  "; color: #b8ab98; font-size: 11px; }
.guide-toc a:hover { color: var(--ink); border-left-color: var(--gold); }

.guide-content { min-width: 0; max-width: 860px; }
.guide-hero { padding: 8px 0 36px; border-bottom: 1px solid var(--line); }
.guide-eyebrow { font-size: 11px; letter-spacing: 2.4px; color: var(--copper); font-weight: 600; }
.guide-hero h1 { margin-top: 10px; font-size: 40px; line-height: 1.3; letter-spacing: -.5px; }
.guide-lead { margin-top: 12px; color: var(--muted); font-size: 16px; }
.guide-flow { margin-top: 26px; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.guide-flow span { padding: 6px 14px; border-radius: 999px; background: var(--card); border: 1px solid var(--line); font-size: 13px; font-weight: 600; }
.guide-flow i { width: 18px; height: 1px; background: var(--gold); }

.guide-section { padding: 48px 0 8px; }
.guide-section h2 { display: flex; align-items: baseline; gap: 14px; font-size: 26px; line-height: 1.4; margin-bottom: 18px; }
.step-no { font-size: 14px; font-weight: 600; color: var(--copper); letter-spacing: 1px; padding: 2px 8px; border: 1px solid #e3d2bc; border-radius: 6px; background: #f4ece1; }
.guide-section > p { margin-bottom: 14px; }
h3.sub { font-size: 18px; margin: 28px 0 10px; }

.steps { padding-left: 0; list-style: none; counter-reset: step; display: grid; gap: 10px; margin-bottom: 20px; }
.steps > li { counter-increment: step; position: relative; padding-left: 40px; }
.steps > li::before { content: counter(step); position: absolute; left: 0; top: 2px; width: 26px; height: 26px; border-radius: 50%; background: var(--dark); color: #f2e7d6; font-size: 13px; font-weight: 600; display: grid; place-items: center; line-height: 1; }
.check-list { padding-left: 0; list-style: none; display: grid; gap: 8px; margin-bottom: 18px; }
.check-list li { position: relative; padding-left: 24px; }
.check-list li::before { content: ""; position: absolute; left: 4px; top: 11px; width: 7px; height: 7px; border-radius: 2px; background: var(--gold); }
.inline-link { color: var(--copper); }

.shot { margin: 16px 0 22px; }
.shot img { border-radius: 12px; border: 1px solid var(--line); box-shadow: 0 10px 30px #2a22150f; background: #111; }
.shot a.zoom { display: block; cursor: zoom-in; }
.shot figcaption { margin-top: 8px; font-size: 13px; color: var(--muted); text-align: center; }
.shot.narrow img { max-width: 320px; }
.shot.strip img { border-radius: 8px; }
.shot.strip { margin: 10px 0; }
.shot-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: start; }
.shot-pair .shot { margin: 6px 0 16px; }

.tip { margin: 6px 0 14px; padding: 10px 14px; border-radius: 8px; background: #efe9de; color: #4c4639; font-size: 14px; }
.tip::before { content: "提示  "; color: var(--copper); font-weight: 600; }
.callout { margin: 18px 0; padding: 16px 20px; border-radius: 12px; background: var(--card); border: 1px solid #e6d9c6; }
.callout-title { font-weight: 700; margin-bottom: 6px; }
.callout ul { padding-left: 20px; display: grid; gap: 6px; }
.callout.warn { background: var(--warn-bg); border-color: #ebcdbb; }
.callout.warn .callout-title { color: var(--warn); }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 4px 0 10px; }
.card { padding: 18px 20px; border-radius: 12px; background: var(--card); border: 1px solid var(--line); }
.card h3 { font-size: 17px; margin-bottom: 8px; }
.card ol { padding-left: 20px; display: grid; gap: 6px; font-size: 14.5px; }

.param-intro { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 22px; align-items: start; margin: 10px 0 8px; }
.param-intro .shot { margin: 0; }
.param-table { width: 100%; border-collapse: collapse; font-size: 14px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.param-table th, .param-table td { text-align: left; vertical-align: top; padding: 10px 14px; border-bottom: 1px solid var(--line); }
.param-table th { background: #efe9de; font-size: 13px; }
.param-table td:first-child { white-space: nowrap; font-weight: 600; }
.param-table tr:last-child td { border-bottom: 0; }
.param-detail { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 28px; align-items: start; margin-top: 18px; }
.param-detail .shot { margin: 0; position: sticky; top: 84px; }
.param-list dt { font-weight: 700; font-size: 16px; margin-top: 18px; }
.param-list dt:first-child { margin-top: 0; }
.param-list dd { margin-top: 4px; color: #3e3d36; }

.note-list { padding-left: 22px; display: grid; gap: 12px; }
.note-list li::marker { color: var(--copper); font-weight: 700; }
.faq { border-bottom: 1px solid var(--line); padding: 12px 0; }
.faq summary { cursor: pointer; font-weight: 600; list-style: none; position: relative; padding-right: 28px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: -2px; font-size: 20px; color: var(--copper); }
.faq[open] summary::after { content: "−"; }
.faq p { margin-top: 8px; color: #3e3d36; }

.guide-footer { margin-top: 56px; padding: 36px 0 0; border-top: 1px solid var(--line); text-align: center; display: grid; justify-items: center; gap: 14px; }
.guide-footer p { color: var(--muted); font-size: 13px; }

@media (max-width: 900px) {
  .guide-layout { grid-template-columns: 1fr; gap: 0; padding-top: 24px; }
  .guide-toc { position: static; margin-bottom: 8px; padding: 14px 16px; border: 1px solid var(--line); border-radius: 12px; background: var(--card); }
  .guide-toc ol { display: grid; grid-template-columns: 1fr 1fr; column-gap: 12px; }
  .guide-toc a { border-left: 0; padding: 4px 0; }
  .param-intro, .param-detail { grid-template-columns: 1fr; }
  .param-detail .shot { position: static; max-width: 300px; margin: 0 auto; }
  .param-intro .shot { max-width: 320px; }
}
@media (max-width: 640px) {
  body { font-size: 14.5px; }
  .guide-header-inner { padding: 10px 16px; }
  .guide-header-links a:not(.guide-cta) { display: none; }
  .guide-layout { padding: 20px 16px 64px; }
  .guide-hero h1 { font-size: 30px; }
  .guide-section h2 { font-size: 22px; }
  .shot-pair, .two-col { grid-template-columns: 1fr; }
  .param-table td:first-child { white-space: normal; }
}