:root {
  --paper: #f6f5ef;
  --ink: #283e35;
  --muted: #627066;
  --line: #dcded3;
  --orange: #be491f;
  --green-soft: #e7eddf;
  --white: #fffefa;
  font-family: Inter, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 28px; }
body { margin: 0; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button, select { font: inherit; }
button, a, select, summary { -webkit-tap-highlight-color: transparent; }
button, summary, select { cursor: pointer; }
button { color: inherit; }
button:disabled { cursor: wait; }
button, select { border-radius: 0; }
button:focus-visible, a:focus-visible, select:focus-visible, summary:focus-visible, [tabindex]:focus-visible { outline: 3px solid var(--orange); outline-offset: 5px; }
::selection { background: #f2c1a8; color: #23382e; }
[hidden] { display: none !important; }
h1, h2, h3, h4, p { margin: 0; }
svg { display: block; }
.wrap { width: min(1180px, calc(100% - 96px)); margin-inline: auto; }
.skip-link { position: fixed; top: -100px; left: 20px; z-index: 10; padding: 14px 22px; background: var(--ink); color: var(--white); }
.skip-link:focus { top: 12px; }
.site-header { display: flex; align-items: center; justify-content: space-between; height: 98px; border-bottom: 1px solid var(--line); gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 24px; font-weight: 750; letter-spacing: -1px; white-space: nowrap; }
.brand-mark { width: 36px; height: 36px; }
.brand-light { font-weight: 400; }
.site-header nav { display: flex; gap: 34px; margin-left: auto; margin-right: 48px; font-size: 13px; }
.site-header nav a, .repo-link, .site-footer a { transition: color 160ms ease; }
.site-header nav a:hover, .repo-link:hover, .site-footer a:hover { color: var(--orange); }
.repo-link { font-size: 14px; font-weight: 650; }
.repo-link span { margin-left: 13px; }
.hero { display: grid; grid-template-columns: 1fr 294px; gap: 72px; padding-block: 76px 80px; align-items: center; }
.eyebrow { font-family: "SFMono-Regular", Consolas, monospace; font-size: 10px; letter-spacing: 1.45px; font-weight: 600; line-height: 1.7; }
.status-dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: #789467; margin-right: 8px; vertical-align: 1px; }
h1 { font-size: clamp(38px, 4.7vw, 64px); line-height: 1.32; letter-spacing: -2.9px; font-weight: 650; margin-top: 23px; }
.accent { color: var(--orange); }
.hero-description { margin-top: 23px; font-size: 16px; line-height: 1.9; color: var(--muted); }
.hero-actions { display: flex; align-items: center; gap: 28px; margin-top: 30px; }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 34px; min-height: 48px; padding: 13px 23px; font-size: 13px; font-weight: 600; border: 1px solid transparent; border-radius: 3px; transition: background 160ms ease, transform 160ms ease; }
.button-primary { background: var(--orange); color: #fff; }
.button-primary:hover { background: #a63d17; transform: translateY(-2px); }
.text-link { font-size: 13px; padding-block: 14px; }
.text-link span { margin-left: 18px; }
.text-link:hover { color: var(--orange); }
.route-note { border: 1px solid #d5dacb; padding: 23px 25px 19px; background: #eef0e6; transform: rotate(2deg); box-shadow: 5px 6px 0 #e5e7dd; }
.note-heading { display: flex; justify-content: space-between; align-items: center; font: 9px Consolas, monospace; letter-spacing: 1.2px; }
.note-heading > span:last-child { font: 26px "Segoe UI", sans-serif; }
.note-intro { font-size: 24px; line-height: 1.55; margin-top: 10px; font-weight: 600; }
.route-list { list-style: none; padding: 0; margin: 20px 0; }
.route-list li { display: flex; align-items: center; position: relative; gap: 15px; padding-block: 9px; font-size: 14px; }
.route-list li:not(:last-child)::after { content: ""; position: absolute; height: 20px; width: 1px; background: #bcc5b5; left: 14px; top: 46px; }
.route-number { display: grid; place-items: center; border: 1px solid #bbc6b2; width: 29px; height: 29px; border-radius: 50%; font: 10px Consolas, monospace; }
.route-list small { display: block; font-size: 10px; color: var(--muted); margin-top: 4px; letter-spacing: 1px; }
.note-footer { display: flex; gap: 10px; border-top: 1px solid #ccd3c1; padding-top: 15px; font-size: 10px; align-items: center; }
.tiny-cross { font-size: 18px; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 25px; margin-bottom: 29px; }
.section-heading .eyebrow { color: var(--muted); margin-bottom: 12px; }
h2 { font-size: 28px; line-height: 1.5; letter-spacing: -.7px; font-weight: 600; }
.section-heading > p { color: var(--muted); font-size: 12px; padding-bottom: 6px; }
.workbench { border: 1px solid #31453b; border-radius: 8px; overflow: hidden; box-shadow: 0 13px 30px -22px #263a3640; }
.workbench-top { background: var(--ink); color: #edf0e8; display: flex; justify-content: space-between; align-items: center; gap: 18px; padding: 16px 24px; font: 10px "SFMono-Regular", Consolas, "Microsoft YaHei", monospace; letter-spacing: 1px; }
.workbench-divider { color: #9aac9c; padding-inline: 12px; }
.demo-badge { font-size: 10px; letter-spacing: .3px; color: #d2ddcd; }
.workbench-body { display: grid; grid-template-columns: 250px 1fr; background: var(--white); }
.workbench-sidebar { border-right: 1px solid var(--line); padding: 27px 21px 22px; background: #f0f1e9; }
.sidebar-label { font-size: 10px; letter-spacing: 1px; color: var(--muted); }
.baseline { display: flex; align-items: center; gap: 11px; margin-top: 15px; font-size: 12px; }
.file-icon { width: 27px; height: 33px; background: var(--white); border: 1px solid #cdd4c5; border-radius: 3px; text-align: center; font-size: 25px; line-height: 25px; }
.baseline small { display: block; font: 9px Consolas, monospace; color: var(--muted); margin-top: 5px; }
.baseline-check { margin-left: auto; color: #477b40; font-size: 12px; }
.brief { margin: 22px 0 25px; padding-bottom: 21px; border-bottom: 1px dashed #cdd4c5; }
.brief > span, .brief small { font-size: 10px; color: var(--muted); }
.brief p { font-size: 12px; margin: 7px 0 5px; }
.demo-tabs { display: grid; gap: 8px; }
.demo-tab { width: 100%; display: flex; align-items: center; gap: 13px; text-align: left; background: transparent; border: 1px solid transparent; padding: 12px; border-radius: 4px; font-size: 12px; }
.demo-tab > span:first-child { font: 10px Consolas, monospace; color: var(--muted); }
.demo-tab small { display: block; font: 9px Consolas, monospace; color: var(--muted); margin-top: 5px; }
.demo-tab[aria-selected="true"] { border-color: #ced7c4; background: #e0e8d6; }
.demo-tab:hover { background: #e5eade; }
.tab-arrow { margin-left: auto; visibility: hidden; }
.demo-tab[aria-selected="true"] .tab-arrow { visibility: visible; }
.sidebar-note { margin-top: 29px; color: var(--muted); font-size: 9px; line-height: 1.7; }
.demo-content { min-width: 0; }
.demo-panel { padding: 29px 32px 0; min-height: 465px; }
.panel-heading { display: flex; gap: 10px; justify-content: space-between; align-items: flex-start; }
.panel-heading .eyebrow { font-size: 9px; color: var(--muted); margin-bottom: 10px; }
h3 { font-size: 21px; line-height: 1.6; font-weight: 600; letter-spacing: -.4px; }
.output-tag { font: 9px Consolas, monospace; color: var(--muted); border: 1px solid var(--line); padding: 5px 7px; white-space: nowrap; }
.panel-description { font-size: 11px; color: var(--muted); line-height: 1.8; margin-top: 8px; }
.job-list { display: grid; gap: 9px; margin-top: 23px; }
.job-row { display: grid; grid-template-columns: 33px 1fr auto; column-gap: 12px; align-items: center; border: 1px solid var(--line); padding: 12px 15px; border-radius: 4px; }
.company-monogram { width: 31px; height: 33px; border-radius: 4px; display: grid; place-items: center; font-family: Georgia, serif; font-size: 20px; }
.company-l { background: #e6ecd9; color: #51663b; }
.company-h { background: #ece8df; color: #7b684d; }
.company-m { background: #e8eae5; color: #627267; }
.job-details h4 { font-size: 12px; font-weight: 600; }
.job-details p { font-size: 10px; color: var(--muted); margin-top: 6px; }
.job-details p span { margin-left: 4px; }
.pill { display: inline-block; width: fit-content; font-size: 9px; padding: 5px 8px; white-space: nowrap; border-radius: 3px; }
.pill-green { background: #e5efdf; color: #3f6534; }
.pill-amber { background: #f7ebd1; color: #7d581c; }
.pill-gray { background: #eeefea; color: #687068; }
.job-reason { grid-column: 2 / -1; font-size: 10px; color: var(--muted); line-height: 1.7; margin-top: 7px; }
.panel-footer { display: flex; justify-content: space-between; gap: 10px; padding: 18px 0 22px; font-size: 9px; line-height: 1.8; color: var(--muted); }
.panel-footer a { white-space: nowrap; color: var(--ink); }
.panel-footer a:hover, .workbench-bottom a:hover, .privacy-note a:hover { text-decoration: underline; text-underline-offset: 4px; }
.workbench-bottom { padding: 12px 24px; display: flex; align-items: center; justify-content: space-between; gap: 16px; border-top: 1px solid var(--line); background: #f3f4ed; color: var(--muted); font-size: 10px; line-height: 1.7; }
.workbench-bottom a { white-space: nowrap; color: var(--ink); }
.evidence-list { margin-top: 19px; }
.evidence-list article { padding: 15px 0; border-bottom: 1px solid var(--line); }
.evidence-list article > div { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.evidence-list h4 { font-size: 12px; font-weight: 600; }
.evidence-list p { font-size: 11px; line-height: 1.8; color: var(--muted); margin-top: 9px; }
.text-diff { margin-top: 26px; border: 1px solid var(--line); border-radius: 4px; overflow: hidden; }
.text-diff > div { padding: 17px 19px; }
.text-diff span { font-size: 10px; color: var(--muted); }
.text-diff p { margin-top: 9px; font-size: 13px; line-height: 1.9; }
.diff-original { background: #f5f3ed; border-bottom: 1px solid var(--line); }
.diff-updated { background: #eef3e7; }
mark { background: #dce8c6; color: var(--ink); padding: 2px 3px; }
.rationale { display: flex; gap: 12px; margin-top: 19px; color: var(--muted); }
.rationale > span { font-size: 22px; }
.rationale p { font-size: 11px; line-height: 1.8; }
.rationale strong { display: block; color: var(--ink); font-weight: 600; margin-bottom: 5px; }
.principles { padding-block: 92px 76px; }
.principle-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 38px; }
.principle-grid article { padding: 0 35px; border-left: 1px solid var(--line); }
.principle-grid article:first-child { padding-left: 0; border-left: 0; }
.principle-grid article:last-child { padding-right: 0; }
.principle-number { font: 10px Consolas, monospace; letter-spacing: 1px; color: var(--orange); }
.principle-grid h3 { margin-top: 19px; font-size: 24px; }
.principle-grid p { margin-top: 12px; font-size: 13px; line-height: 1.95; color: var(--muted); }
.principle-foot { display: block; margin-top: 23px; font-size: 10px; color: var(--ink); }
.principle-foot::before { content: "↳"; margin-right: 9px; }
.privacy-note { display: flex; align-items: center; gap: 18px; border-top: 1px solid var(--line); margin-top: 40px; padding-top: 24px; }
.privacy-symbol { font-size: 32px; }
.privacy-note p { font-size: 11px; line-height: 1.8; color: var(--muted); max-width: 840px; }
.privacy-note strong { color: var(--ink); font-weight: 600; }
.privacy-note a { margin-left: auto; white-space: nowrap; font-size: 11px; }
.start-section { background: var(--ink); color: #f4f5ec; padding-block: 65px; }
.start-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; align-items: center; }
.start-copy .eyebrow { color: #bec9b4; font-size: 9px; }
.start-copy h2 { font-size: 37px; line-height: 1.5; margin-top: 18px; }
.start-copy > p:not(.eyebrow) { font-size: 12px; color: #c0cabe; line-height: 1.9; margin-top: 17px; }
.start-steps { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 20px; }
.start-steps li { display: flex; gap: 14px; font-size: 12px; }
.start-steps li > span { display: grid; place-items: center; height: 23px; width: 23px; flex-shrink: 0; border: 1px solid #6e806f; font: 10px Consolas, monospace; border-radius: 50%; }
.start-steps small { display: block; font-size: 10px; color: #c0cabe; margin-top: 7px; line-height: 1.7; }
.start-steps a:hover { text-decoration: underline; text-underline-offset: 4px; }
.prompt-card { background: #f0f1e6; border-radius: 6px; padding: 28px; color: var(--ink); }
.prompt-heading { display: flex; justify-content: space-between; margin-bottom: 28px; font-size: 12px; }
.prompt-card label { display: block; font-size: 10px; color: var(--muted); margin-bottom: 8px; }
.prompt-card select { width: 100%; padding: 10px 12px; background: var(--white); border: 1px solid #cbd2c2; border-radius: 3px; font-size: 12px; color: var(--ink); min-height: 42px; }
#prompt-text { font-size: 16px; line-height: 2; padding: 24px 0; min-height: 207px; }
.prompt-actions { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid #cbd2c2; padding-top: 18px; gap: 12px; }
#copy-status { color: var(--muted); font-size: 10px; line-height: 1.7; }
#copy-prompt { background: var(--ink); color: var(--white); border: 0; border-radius: 3px; font-size: 11px; padding: 12px 15px; white-space: nowrap; min-height: 42px; }
#copy-prompt:hover { background: #3c5446; }
#copy-prompt > span { margin-left: 12px; }
.faq { display: grid; grid-template-columns: 1fr 2fr; gap: 70px; padding-block: 74px; }
.faq .eyebrow { font-size: 9px; color: var(--muted); margin-bottom: 15px; }
.faq-list { border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px 0; font-size: 13px; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary span { font-size: 20px; font-weight: 300; transition: transform 160ms ease; }
details[open] summary span { transform: rotate(45deg); }
details p { font-size: 12px; color: var(--muted); line-height: 1.9; padding: 0 28px 21px 0; }
.site-footer { display: flex; align-items: center; flex-wrap: wrap; gap: 25px; border-top: 1px solid var(--line); min-height: 99px; padding-block: 26px; }
.site-footer .brand { font-size: 20px; }
.footer-mark { color: var(--orange); font-size: 30px; margin-right: 1px; }
.site-footer > p { font-size: 10px; color: var(--muted); }
.site-footer > div { margin-left: auto; display: flex; gap: 22px; font-size: 10px; }
@media (min-width: 1500px) { .hero { padding-block: 90px; } }
@media (max-width: 1050px) {
  .wrap { width: calc(100% - 64px); }
  .site-header nav { margin-right: 20px; gap: 24px; }
  .hero { gap: 38px; grid-template-columns: 1fr 250px; padding-block: 60px; }
  h1 { font-size: 47px; letter-spacing: -2px; }
  .route-note { padding: 19px 22px; }
  .section-heading { align-items: flex-start; flex-direction: column; gap: 10px; }
  .workbench-body { grid-template-columns: 210px 1fr; }
  .workbench-sidebar { padding-inline: 16px; }
  .demo-panel { padding-inline: 23px; min-height: 486px; }
  .output-tag { display: none; }
  .panel-heading h3 { font-size: 19px; }
  .job-row { padding-inline: 11px; column-gap: 9px; }
  .job-details p span { display: block; margin-top: 4px; margin-left: 0; }
  .panel-footer { flex-direction: column; }
  .start-grid { gap: 45px; }
  .principle-grid article { padding-inline: 24px; }
}
@media (max-width: 760px) {
  .wrap { width: calc(100% - 40px); }
  .site-header { height: 78px; }
  .site-header nav { gap: 17px; margin: 0 0 0 auto; font-size: 11px; }
  .site-header nav a:nth-child(2) { display: none; }
  .brand { font-size: 21px; gap: 8px; }
  .brand-mark { width: 30px; height: 30px; }
  .repo-link { font-size: 12px; }
  .repo-link span { margin-left: 3px; }
  .hero { grid-template-columns: 1fr; padding-block: 50px; gap: 38px; }
  h1 { font-size: clamp(35px, 7.5vw, 54px); letter-spacing: -1.8px; line-height: 1.4; margin-top: 18px; }
  .hero-description { font-size: 14px; margin-top: 18px; }
  .hero-actions { gap: 22px; margin-top: 24px; }
  .route-note { transform: none; box-shadow: none; padding: 16px 20px; }
  .note-heading { font-size: 9px; }
  .note-heading > span:last-child { font-size: 21px; }
  .note-intro, .note-footer { display: none; }
  .route-list { display: flex; justify-content: space-between; gap: 10px; margin: 9px 0 0; }
  .route-list li { gap: 8px; font-size: 12px; }
  .route-list li:not(:last-child)::after { display: none; }
  .route-number { width: 24px; height: 24px; font-size: 9px; flex-shrink: 0; }
  .route-list small { font-size: 8px; letter-spacing: 0; }
  h2 { font-size: 25px; }
  .section-heading { margin-bottom: 22px; }
  .section-heading > p { font-size: 11px; }
  .workbench-top { padding: 14px 16px; letter-spacing: 0; font-size: 9px; }
  .workbench-divider { padding-inline: 5px; }
  .demo-badge { font-size: 8px; }
  .workbench-body { grid-template-columns: 1fr; }
  .workbench-sidebar { padding: 18px 15px 14px; border-right: 0; border-bottom: 1px solid var(--line); }
  .sidebar-label, .sidebar-note { display: none; }
  .baseline { display: inline-flex; margin: 0; vertical-align: middle; }
  .baseline-check { margin-left: 5px; }
  .brief { display: inline-block; vertical-align: middle; margin: 0 0 0 20px; padding: 0 0 0 20px; border: 0; border-left: 1px solid var(--line); }
  .brief > span { display: none; }
  .brief p { margin-top: 0; }
  .demo-tabs { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 19px; gap: 5px; }
  .demo-tab { padding: 10px 8px; gap: 7px; font-size: 11px; }
  .demo-tab small { font-size: 8px; }
  .tab-arrow { display: none; }
  .demo-panel { padding: 24px 19px 0; min-height: 473px; }
  .panel-heading h3 { font-size: 18px; }
  .panel-description { font-size: 10px; }
  .job-list { margin-top: 19px; }
  .job-row { grid-template-columns: 26px 1fr auto; padding: 12px 10px; gap: 0 9px; }
  .company-monogram { width: 26px; height: 29px; font-size: 18px; }
  .job-details h4 { font-size: 11px; }
  .job-details p { font-size: 9px; }
  .job-details p span { display: inline; margin-left: 3px; }
  .pill { font-size: 8px; padding: 5px 6px; }
  .job-reason { font-size: 9px; }
  .workbench-bottom { font-size: 9px; padding-inline: 16px; }
  .principles { padding-block: 56px; }
  .principle-grid { grid-template-columns: 1fr; margin-top: 28px; }
  .principle-grid article, .principle-grid article:first-child, .principle-grid article:last-child { border-left: 0; padding: 24px 0; border-top: 1px solid var(--line); }
  .principle-grid h3 { margin-top: 10px; font-size: 23px; }
  .principle-grid p { font-size: 12px; margin-top: 8px; }
  .principle-foot { margin-top: 13px; }
  .privacy-note { flex-wrap: wrap; margin-top: 12px; gap: 10px; }
  .privacy-symbol { display: none; }
  .privacy-note a { margin-left: 0; margin-top: 3px; }
  .start-section { padding-block: 45px; }
  .start-grid { grid-template-columns: 1fr; gap: 32px; }
  .start-copy h2 { font-size: 32px; }
  .prompt-card { padding: 23px; }
  #prompt-text { font-size: 15px; min-height: 190px; }
  .faq { grid-template-columns: 1fr; gap: 25px; padding-block: 50px; }
  .faq h2 { font-size: 27px; }
  .faq .eyebrow { margin-bottom: 10px; }
  summary { font-size: 12px; }
  .site-footer { gap: 12px 20px; padding-block: 24px; }
  .site-footer > div { width: 100%; margin: 9px 0 0; justify-content: space-between; gap: 12px; }
}
@media (max-width: 380px) {
  .site-header nav { display: none; }
  .hero-actions { gap: 17px; }
  .button { gap: 23px; padding-inline: 19px; }
  .text-link { font-size: 12px; }
  .text-link span { margin-left: 8px; }
  .route-note { padding-inline: 12px; }
  .route-list li { gap: 5px; }
  .route-number { width: 20px; height: 20px; }
  .demo-tab { gap: 5px; padding-inline: 5px; }
  .job-row { grid-template-columns: 26px 1fr; }
  .job-row > .pill { grid-column: 2; margin-top: 7px; }
  .brief { margin-left: 10px; padding-left: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}