:root {
  color-scheme: light;
  --paper: #f2f1e9;
  --paper-deep: #e7e8dd;
  --ink: #1b2b25;
  --muted: #68736a;
  --line: #cbd1c4;
  --forest: #19372e;
  --gold: #b68b36;
  --serif: "Songti SC", "STSong", "SimSun", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: "SFMono-Regular", Consolas, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input { font: inherit; }
:focus-visible { outline: 3px solid #b68b36; outline-offset: 4px; }
.wrap { width: min(100% - 80px, 1360px); margin-inline: auto; }
.skip-link { position: fixed; z-index: 20; top: 8px; left: 8px; padding: 10px; background: #fff; transform: translateY(-150%); }
.skip-link:focus { transform: none; }
.site-header { border-bottom: 1px solid var(--line); }
.header-inner { height: 84px; display: flex; align-items: center; gap: 48px; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.brand img { width: 42px; height: 42px; }
.brand strong, .brand small { display: block; }
.brand strong { font-size: 17px; letter-spacing: -.04em; }
.brand small { margin-top: 3px; color: var(--muted); font: 8px var(--mono); letter-spacing: .09em; }
.nav { display: flex; align-items: center; gap: 34px; margin-left: auto; font-size: 13px; font-weight: 600; }
.nav a, .site-footer a { transition: color .2s; }
.nav a:hover, .site-footer a:hover, .nav a[aria-current] { color: #9c792e; }
.header-action { padding: 12px 16px; border: 1px solid var(--ink); font-size: 13px; font-weight: 650; white-space: nowrap; transition: background .2s, color .2s; }
.header-action:hover { color: var(--paper); background: var(--ink); }
.header-action span, .text-link span, .button span { margin-left: 15px; }
.hero { display: grid; grid-template-columns: minmax(0, .86fr) minmax(0, 1.22fr); gap: clamp(40px, 5vw, 86px); align-items: center; padding-block: 95px 100px; }
.hero-copy { padding-bottom: 24px; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 26px; color: #68786c; font: 10px/1.4 var(--mono); font-weight: 600; letter-spacing: .11em; }
.status-dot { width: 6px; height: 6px; border-radius: 50%; background: #6d977a; }
.eyebrow-rule { width: 22px; height: 1px; background: #a8b5a8; }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-family: var(--serif); font-weight: 600; letter-spacing: -.06em; }
.hero h1 { margin-bottom: 28px; font-size: clamp(52px, 5.3vw, 78px); line-height: 1.24; }
.punctuation { color: var(--gold); }
.hero-lead { max-width: 425px; margin-bottom: 34px; color: #59685e; font-size: 16px; line-height: 2; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 28px; }
.button { min-height: 52px; display: inline-flex; align-items: center; justify-content: space-between; padding: 0 20px; font-size: 13px; font-weight: 700; transition: background .2s, color .2s, transform .2s; }
.button:hover { transform: translateY(-2px); }
.button-dark { background: var(--forest); color: #fff; }
.button-dark:hover { background: #305548; }
.text-link { display: inline-block; width: fit-content; padding-block: 8px; border-bottom: 1px solid #87998a; font-size: 13px; font-weight: 700; }
.text-link:hover { border-color: var(--gold); color: #86651f; }
.hero-platforms { margin: 37px 0 0; color: #8a958b; font: 10px var(--mono); letter-spacing: .08em; }
.hero-platforms span { margin-inline: 7px; color: #bdc6bb; }
.hero-visual { min-width: 0; }
.visual-meta { display: flex; justify-content: space-between; margin-bottom: 12px; color: #839085; font: 10px var(--mono); letter-spacing: .08em; }
.compare { position: relative; overflow: hidden; isolation: isolate; background: #0d1713; border: 1px solid #748379; box-shadow: 0 24px 60px -30px rgba(25, 55, 46, .55); }
.compare-image { width: 100%; height: auto; }
.compare-light { position: absolute; inset: 0; clip-path: inset(0 calc(100% - var(--split)) 0 0); }
.compare-divider { position: absolute; z-index: 2; top: 0; bottom: 0; left: var(--split); width: 2px; background: #fafaf4; pointer-events: none; }
.compare-divider span { position: absolute; top: 50%; left: 50%; display: flex; align-items: center; justify-content: center; gap: 4px; width: 44px; height: 44px; border: 1px solid #e6e9df; border-radius: 50%; background: #fff; color: #22382e; font: 22px/1 var(--sans); box-shadow: 0 2px 10px #1a302744; transform: translate(-50%, -50%); }
.compare-divider i { width: 1px; height: 14px; background: #c9d1c7; }
.compare-range { position: absolute; z-index: 3; inset: 0; width: 100%; height: 100%; margin: 0; cursor: ew-resize; opacity: .001; }
.compare:has(.compare-range:focus-visible) { outline: 3px solid #b68b36; outline-offset: 4px; }
.compare-caption { display: flex; justify-content: space-between; gap: 8px; padding-top: 16px; color: #778478; font: 10px var(--mono); letter-spacing: .04em; }
.compare-caption b { color: #35483b; font: 600 12px var(--sans); }
.compare-hint { text-align: center; font: 12px var(--sans); letter-spacing: 0; }
.visual-note { margin: 12px 0 0; color: #879188; font-size: 11px; text-align: right; }
.facts-bar { border-block: 1px solid var(--line); }
.facts-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 70px; color: #69786d; font-size: 12px; }
.facts-inner span:first-child { color: #34483a; font-weight: 600; }
.facts-inner b { padding-inline: 7px; color: #ad8a43; }
.section { padding-block: 145px; }
.story { display: grid; grid-template-columns: minmax(0, .82fr) minmax(0, 1fr); gap: clamp(60px, 10vw, 160px); align-items: center; }
.section h2, .detail-section h2, .closing h2 { margin-bottom: 28px; font-size: clamp(36px, 3.5vw, 52px); line-height: 1.32; }
.section-intro > p:not(.eyebrow), .detail-content p { max-width: 470px; color: #617066; font-size: 15px; line-height: 2; }
.section-intro .text-link { margin-top: 18px; }
.reference-demo { padding: 28px 30px 24px; background: #dfe5da; border: 1px solid #c5d1c4; }
.demo-top { display: flex; justify-content: space-between; margin-bottom: 27px; color: #728275; font: 10px var(--mono); letter-spacing: .1em; }
.demo-window { padding: 26px; background: #f6f6ef; border: 1px solid #cfd8cb; }
.demo-label { margin-bottom: 14px; color: #617466; font-size: 12px; font-weight: 650; }
.reference-line { display: grid; grid-template-columns: 34px 1fr auto; align-items: center; gap: 12px; padding: 14px 0; border-top: 1px solid #dce2d8; }
.reference-mark { display: grid; place-items: center; width: 32px; height: 32px; color: #607e69; background: #e8eee5; font-family: var(--mono); }
.reference-line b, .reference-line small { display: block; }
.reference-line b { font-size: 13px; }
.reference-line small { margin-top: 4px; color: #8a988b; font-size: 11px; }
.reference-type { color: #91a092; font-size: 10px; }
.demo-prompt { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 12px; padding: 14px; border: 1px solid #ced7ca; color: #7a877c; font-size: 12px; }
.demo-send { display: grid; place-items: center; width: 28px; height: 28px; flex: 0 0 auto; background: var(--forest); color: white; font-size: 16px; }
.demo-footnote { margin: 18px 0 0; color: #728275; font-size: 11px; line-height: 1.7; }
.feature-section { background: #e6e9df; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 32px; margin-bottom: 50px; }
.section-heading h2 { margin-bottom: 0; }
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid #bdc9bc; }
.feature-item { display: grid; grid-template-columns: 45px 1fr auto; gap: 20px; min-height: 190px; padding: 31px 35px 30px 0; border-bottom: 1px solid #bdc9bc; }
.feature-item:nth-child(even) { padding-left: 36px; border-left: 1px solid #bdc9bc; }
.feature-number { color: #9a8551; font: 11px var(--mono); }
.feature-item h3 { margin-bottom: 14px; font-family: var(--serif); font-size: 22px; font-weight: 600; }
.feature-item p { max-width: 370px; margin-bottom: 0; color: #6c7b6e; font-size: 13px; line-height: 1.9; }
.feature-arrow { color: #879a89; font-size: 18px; }
.closing { display: flex; align-items: end; justify-content: space-between; gap: 36px; margin-block: 110px 0; padding: 62px 70px; background: var(--forest); color: #f4f4e9; }
.closing .eyebrow { color: #a4b8a4; }
.closing h2 { margin-bottom: 18px; }
.closing p:not(.eyebrow) { margin-bottom: 0; color: #adbeae; font-size: 14px; line-height: 1.8; }
.closing-actions { display: grid; gap: 18px; min-width: 180px; }
.button-light { background: #eff0e5; color: #1b342a; }
.button-light:hover { background: #fff; }
.closing-link { color: #d2ddcd; font-size: 12px; }
.site-footer { display: flex; align-items: center; gap: 30px; padding-block: 38px 45px; color: #8b978c; font-size: 11px; }
.site-footer > :last-child { margin-left: auto; }
.footer-brand { color: #34493b; font: 600 11px var(--mono); }
.footer-brand span { color: #b2914d; }
.feature-hero { display: flex; justify-content: space-between; align-items: end; gap: 60px; padding-block: 110px 90px; }
.feature-hero h1 { margin-bottom: 0; font-size: clamp(50px, 5vw, 72px); line-height: 1.3; }
.feature-hero-aside { max-width: 355px; padding-bottom: 8px; }
.feature-hero-aside p { color: #64746a; font-size: 15px; line-height: 2; }
.feature-nav { display: flex; flex-wrap: wrap; gap: 20px 45px; padding-block: 22px; border-block: 1px solid var(--line); color: #66776a; font-size: 12px; }
.feature-nav a:hover { color: #9c792e; }
.detail-section { padding-block: 100px; scroll-margin-top: 24px; }
.detail-section + .detail-section:not(.detail-highlight) { border-top: 1px solid var(--line); }
.detail-index { display: flex; justify-content: space-between; gap: 20px; margin-bottom: 50px; color: #829086; font: 10px var(--mono); letter-spacing: .08em; }
.detail-index span:last-child { font-family: var(--sans); letter-spacing: 0; }
.detail-content { display: grid; grid-template-columns: 1fr 1fr; align-items: start; gap: clamp(50px, 9vw, 130px); }
.detail-content .detail-lead { color: #354b3b; font-size: 16px; }
.detail-content p:last-child { margin-bottom: 0; }
.provider-list { border-top: 1px solid #c0ccbf; }
.provider-list > span { display: flex; justify-content: space-between; padding: 18px 0; border-bottom: 1px solid #c0ccbf; font-family: var(--serif); font-size: 21px; }
.provider-list i { color: #9ca89b; font: normal 10px var(--mono); }
.provider-list small { display: block; margin-top: 15px; color: #8c9a8c; font-size: 11px; }
.detail-highlight { background: #dfe6da; }
.detail-content code { color: #294c39; font-size: .9em; overflow-wrap: anywhere; }
.detail-source { display: inline-block; margin-top: 15px; color: #466e52; font-size: 12px; border-bottom: 1px solid #94ae96; padding-bottom: 5px; }
.reference-steps { border-top: 1px solid #bacaba; }
.reference-steps > div { display: grid; grid-template-columns: 45px 1fr; gap: 18px; padding: 23px 0; border-bottom: 1px solid #bacaba; }
.reference-steps > div > span { color: #9a8551; font: 11px var(--mono); }
.reference-steps p { margin: 0; }
.reference-steps b, .reference-steps small { display: block; }
.reference-steps b { color: #2b4333; font-size: 15px; }
.reference-steps small { color: #798b7b; font-size: 12px; }
.detail-note { max-width: 900px; margin: 55px 0 0; padding-top: 18px; border-top: 1px solid #bdcbbd; color: #677c6a; font-size: 12px; line-height: 1.9; }
#desktop .detail-content { grid-template-columns: 1fr; gap: 38px; }
.detail-screen { width: min(100%, 1040px); }
.detail-screen img { width: 100%; height: auto; border: 1px solid #607468; box-shadow: 0 18px 45px -25px #344b3b; }
.detail-screen__caption { display: flex; justify-content: space-between; gap: 12px; margin-top: 15px; color: #718174; font-size: 11px; }
.detail-screen__caption span:last-child { color: #466e52; white-space: nowrap; }
.detail-list { border-top: 1px solid #c0ccbf; }
.detail-list div { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; padding: 20px 0; border-bottom: 1px solid #c0ccbf; }
.detail-list b { font-family: var(--serif); font-size: 22px; font-weight: 600; white-space: nowrap; }
.detail-list span { color: #7c8a7e; font-size: 12px; text-align: right; }
@media (max-width: 980px) {
  .wrap { width: min(100% - 48px, 1360px); }
  .header-inner { gap: 25px; }
  .nav { gap: 22px; }
  .hero { grid-template-columns: 1fr; gap: 55px; padding-block: 80px; }
  .hero-copy { max-width: 700px; padding: 0; }
  .hero-visual { max-width: 850px; }
  .story { gap: 60px; }
  .section { padding-block: 105px; }
}
@media (max-width: 650px) {
  .wrap { width: calc(100% - 36px); }
  .header-inner { height: 72px; gap: 16px; }
  .brand img { width: 35px; height: 35px; }
  .brand strong { font-size: 15px; }
  .brand small { font-size: 7px; }
  .nav { gap: 0; margin-left: auto; font-size: 12px; white-space: nowrap; }
  .nav a:first-child, .nav a:last-child { display: none; }
  .header-action { padding: 10px; font-size: 12px; }
  .header-action span { margin-left: 3px; }
  .hero { gap: 45px; padding-block: 70px 68px; }
  .hero h1 { font-size: clamp(45px, 11.5vw, 64px); }
  .hero-lead { font-size: 15px; }
  .compare-hint { font-size: 11px; }
  .compare-caption { font-size: 9px; }
  .compare-caption b { font-size: 11px; }
  .compare-divider span { width: 38px; height: 38px; }
  .facts-inner { flex-wrap: wrap; justify-content: flex-start; gap: 10px 24px; padding-block: 20px; }
  .facts-inner span:first-child { flex-basis: 100%; }
  .section { padding-block: 80px; }
  .story, .detail-content { grid-template-columns: 1fr; gap: 42px; }
  .reference-demo { padding: 20px; }
  .demo-window { padding: 20px; }
  .section-heading { display: block; margin-bottom: 38px; }
  .section-heading .text-link { margin-top: 20px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-item, .feature-item:nth-child(even) { min-height: 0; padding: 27px 0; border-left: 0; }
  .feature-item h3 { font-size: 20px; }
  .closing { display: block; margin-top: 75px; padding: 42px 28px; }
  .closing-actions { margin-top: 30px; max-width: 220px; }
  .site-footer { flex-wrap: wrap; gap: 12px 25px; line-height: 1.7; }
  .site-footer > span { flex-basis: 100%; order: 3; }
  .feature-hero { display: block; padding-block: 75px 65px; }
  .feature-hero h1 { font-size: clamp(45px, 11vw, 62px); }
  .feature-hero-aside { margin-top: 30px; }
  .feature-nav { gap: 16px 25px; }
  .detail-section { padding-block: 75px; }
  .detail-index { margin-bottom: 38px; }
  .detail-content p { font-size: 14px; }
  .detail-content .detail-lead { font-size: 15px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}