:root {
  --ink: #102027;
  --ink-soft: #243b43;
  --cyan: #00b8bd;
  --cyan-deep: #007f84;
  --cyan-pale: #d9f7f5;
  --paper: #f7f2e8;
  --paper-light: #fffdf8;
  --line: #183940;
  --muted: #60777b;
  --shadow: 8px 8px 0 #102027;
  color-scheme: light;
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--paper); overflow-x: hidden; }
body { margin: 0; min-width: 0; color: var(--ink); background: linear-gradient(90deg, rgba(0,184,189,.07) 1px, transparent 1px), var(--paper); background-size: 28px 28px; line-height: 1.72; overflow-x: hidden; }
a { color: var(--cyan-deep); text-decoration-thickness: .1em; text-underline-offset: .18em; }
a:hover { color: var(--ink); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; }
.skip-link { position: absolute; left: 1rem; top: -5rem; background: var(--ink); color: white; padding: .7rem 1rem; z-index: 50; }
.skip-link:focus { top: 1rem; }
.site-header { background: var(--ink); color: white; border-bottom: 5px solid var(--cyan); }
.header-row { max-width: 1180px; margin: 0 auto; padding: 1rem clamp(1rem,4vw,2.4rem) .7rem; display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; }
.brand { color: white; text-decoration: none; font-weight: 900; letter-spacing: .08em; font-size: 1.12rem; }
.brand-note { color: #b9dbdc; font-size: .78rem; }
.compact-nav { max-width: 1180px; margin: 0 auto; display: flex; gap: .35rem; padding: 0 clamp(1rem,4vw,2.4rem) .8rem; overflow-x: auto; scrollbar-width: thin; }
.compact-nav a { color: #e7ffff; white-space: nowrap; text-decoration: none; border: 1px solid #3b646a; border-radius: 999px; padding: .36rem .72rem; font-size: .86rem; }
.compact-nav a[aria-current="page"], .compact-nav a:hover { color: var(--ink); background: var(--cyan); border-color: var(--cyan); }
main { max-width: 1180px; margin: 0 auto; padding: clamp(1.2rem,4vw,3rem) clamp(1rem,4vw,2.4rem) 4rem; }
.breadcrumbs { font-size: .84rem; color: var(--muted); margin-bottom: 1rem; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: .35rem; margin: 0; padding: 0; list-style: none; }
.breadcrumbs li + li::before { content: "／"; margin-right: .35rem; color: var(--cyan-deep); }
.editor-note { position: relative; background: var(--paper-light); border: 2px solid var(--ink); padding: clamp(1.2rem,4vw,3.2rem); box-shadow: var(--shadow); display: grid; grid-template-columns: minmax(0,1.5fr) minmax(14rem,.7fr); gap: 2rem; align-items: end; }
.editor-note::before { content: "EDITOR NOTE · 094"; position: absolute; right: 1rem; top: -1rem; background: var(--cyan); border: 2px solid var(--ink); padding: .25rem .65rem; font-weight: 900; letter-spacing: .08em; transform: rotate(1.5deg); }
.eyebrow { margin: 0 0 .5rem; color: var(--cyan-deep); font-weight: 900; letter-spacing: .12em; text-transform: uppercase; font-size: .78rem; }
h1, h2, h3 { line-height: 1.2; text-wrap: balance; }
h1 { margin: .2rem 0 1rem; font-size: clamp(2.25rem,7vw,5.8rem); letter-spacing: -.055em; }
.page-hero h1 { font-size: clamp(2rem,5vw,4.2rem); }
h2 { margin: 0 0 1rem; font-size: clamp(1.45rem,3vw,2.25rem); }
h3 { margin: 0 0 .6rem; font-size: 1.05rem; }
p { margin: 0 0 1rem; }
.lead { font-size: clamp(1.05rem,2vw,1.3rem); max-width: 50rem; }
.status-box { background: var(--cyan-pale); border-left: 6px solid var(--cyan-deep); padding: 1rem; }
.status-box strong { display: block; margin-bottom: .35rem; }
.page-hero { background: var(--paper-light); border-top: 8px solid var(--cyan); border-bottom: 2px solid var(--ink); padding: clamp(1.2rem,4vw,2.7rem); margin-bottom: 2rem; }
.meta-row { display: flex; flex-wrap: wrap; gap: .55rem 1rem; color: var(--muted); font-size: .86rem; }
.meta-row a { font-weight: 700; }
.magazine-stack { display: grid; gap: 2rem; margin-top: 2.5rem; }
.section-block { background: rgba(255,253,248,.94); border: 1px solid var(--line); padding: clamp(1.1rem,3vw,2rem); }
.section-label { display: inline-block; margin-bottom: .75rem; padding: .2rem .55rem; color: white; background: var(--ink); font-size: .76rem; font-weight: 900; letter-spacing: .08em; }
.card-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 1.4rem; }
.offset-card { position: relative; min-width: 0; background: var(--paper-light); border: 2px solid var(--ink); padding: 1.1rem; }
.offset-card::after { content: ""; position: absolute; inset: 7px -7px -7px 7px; background: var(--cyan); border: 2px solid var(--ink); z-index: -1; }
.offset-card:nth-child(even) { transform: translateY(.65rem); }
.offset-card p { color: var(--ink-soft); }
.offset-card a.stretched { font-weight: 900; font-size: 1.06rem; }
.two-col { display: grid; grid-template-columns: minmax(0,1.45fr) minmax(16rem,.7fr); gap: 2rem; align-items: start; }
.note-rail { border: 2px solid var(--ink); background: var(--cyan-pale); padding: 1.2rem; position: sticky; top: 1rem; }
.note-rail ul, .check-list { padding-left: 1.2rem; }
.article-body { max-width: 78ch; }
.article-body section { margin: 2.2rem 0; }
.article-body p { font-size: 1.03rem; }
.callout { border: 1px solid var(--ink); border-left: 9px solid var(--cyan); padding: 1rem 1.2rem; background: #f1fffe; margin: 1.5rem 0; }
.tag-row { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1rem; }
.tag-row a, .tag-pill { display: inline-block; border: 1px solid var(--cyan-deep); border-radius: 999px; padding: .24rem .62rem; text-decoration: none; font-size: .82rem; background: var(--paper-light); }
.faq details { border-top: 1px solid #8aa0a4; padding: .8rem 0; }
.faq summary { cursor: pointer; font-weight: 800; }
.tool-panel { border: 2px solid var(--ink); background: var(--paper-light); padding: 1.2rem; }
.tool-panel label { display: block; margin: .8rem 0; }
.tool-panel input[type="text"], .tool-panel select { width: 100%; max-width: 42rem; padding: .7rem; border: 2px solid var(--ink); background: white; font: inherit; }
.button { display: inline-block; border: 2px solid var(--ink); background: var(--cyan); color: var(--ink); padding: .65rem 1rem; font: inherit; font-weight: 900; cursor: pointer; box-shadow: 4px 4px 0 var(--ink); text-decoration: none; }
.button:active { transform: translate(2px,2px); box-shadow: 2px 2px 0 var(--ink); }
.result { min-height: 3rem; margin-top: 1rem; padding: .8rem; background: var(--cyan-pale); border-left: 5px solid var(--cyan-deep); }
.site-footer { background: var(--ink); color: #d8eeee; padding: 2.4rem clamp(1rem,4vw,2.4rem); }
.footer-inner { max-width: 1180px; margin: 0 auto; }
.footer-links { display: flex; flex-wrap: wrap; gap: .55rem 1rem; margin-bottom: 1rem; }
.footer-links a { color: white; }
.small { color: #a9c6c8; font-size: .82rem; }
@media (max-width: 820px) {
  .editor-note, .two-col { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .note-rail { position: static; }
  .header-row { align-items: flex-start; flex-direction: column; gap: .25rem; }
}
@media (max-width: 520px) {
  .card-grid { grid-template-columns: 1fr; }
  .offset-card:nth-child(even) { transform: none; }
  .editor-note { box-shadow: 5px 5px 0 var(--ink); }
  h1 { font-size: clamp(2.05rem,15vw,3.4rem); }
  .brand-note { display: block; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }