:root { color-scheme: light; --ink: #19283e; --muted: #68768b; --blue: #315bdb; --line: #e3e9f1; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 32px; }
body { margin: 0; color: var(--ink); background: #f7f9fc; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 3px solid #7094ff; outline-offset: 6px; border-radius: 4px; }
.skip-link { position: fixed; z-index: 10; top: 12px; left: 12px; transform: translateY(-180%); padding: 12px; background: white; }
.skip-link:focus { transform: none; }
.site-wrap { width: min(1160px, calc(100% - 96px)); margin: 0 auto; }
.site-header { display: flex; align-items: center; justify-content: space-between; min-height: 112px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-size: 20px; font-weight: 700; letter-spacing: .4px; }
.brand img { width: 39px; height: 39px; }
.brand-domain { display: block; margin-top: 3px; font-size: 9px; font-weight: 500; letter-spacing: 2.1px; color: #7d899d; }
.site-header nav { display: flex; gap: 32px; font-size: 13px; color: #59667b; }
.site-header nav a { padding: 10px 0; }
.site-header nav a:hover, .site-footer a:hover { color: var(--blue); }
.site-header nav span { margin-left: 5px; color: #7a8da9; }
.hero { display: grid; grid-template-columns: 1.2fr 1fr; align-items: center; gap: 45px; min-height: 574px; padding: 54px 0 84px; }
.eyebrow { display: flex; align-items: center; gap: 9px; margin: 0 0 27px; color: #64738b; font-size: 12px; letter-spacing: 1px; }
.eyebrow span { width: 6px; height: 6px; border-radius: 50%; background: #3c8b7d; box-shadow: 0 0 0 4px #e4eee9; }
h1 { margin: 0; font-size: clamp(38px, 4.3vw, 59px); line-height: 1.35; letter-spacing: -2px; font-weight: 750; }
h1 span { color: var(--blue); }
.hero-description { margin: 25px 0 30px; color: var(--muted); font-size: 14px; line-height: 2.1; }
.primary-link { display: inline-flex; align-items: center; gap: 30px; padding: 15px 22px; background: var(--ink); border-radius: 8px; color: white; font-size: 13px; transition: background .18s, transform .18s; }
.primary-link:hover { background: var(--blue); transform: translateY(-2px); }
.primary-link span { font-size: 18px; line-height: 1; }
.hero-note { margin: 17px 0 0; color: #8b95a5; font-size: 11px; }
.hero-art { position: relative; height: 410px; isolation: isolate; }
.art-grid { position: absolute; inset: 15px -8px 15px 8px; z-index: -2; background-image: radial-gradient(#d8e0ed 1px, transparent 1px); background-size: 19px 19px; mask-image: radial-gradient(ellipse, black 30%, transparent 71%); }
.art-orbit { position: absolute; inset: 20px 4px 8px 0; z-index: -1; border: 1px solid #e4eaf5; border-radius: 50%; transform: rotate(-20deg); }
.paper { position: absolute; width: 275px; height: 301px; left: 67px; top: 44px; border: 1px solid #dde4f0; border-radius: 17px; }
.paper-back { background: #e7edfc; transform: translate(22px, 3px) rotate(8deg); }
.paper-front { background: #fff; transform: rotate(-5deg); padding: 24px; box-shadow: 0 24px 70px -32px #405b8b70; }
.paper-heading { display: flex; align-items: center; gap: 12px; margin-bottom: 25px; }
.paper-symbol { display: grid; place-items: center; width: 34px; height: 34px; color: var(--blue); background: #eff3fd; border-radius: 10px; font-size: 25px; }
.paper-caption { color: #9ca7ba; font-size: 9px; font-weight: 600; letter-spacing: 1.6px; }
.paper-line { height: 7px; margin-top: 10px; border-radius: 6px; background: #dbe3f3; }
.line-long { width: 74%; }
.line-short { width: 47%; margin-bottom: 23px; background: #ecf0f7; }
.paper-task { display: flex; align-items: center; gap: 12px; margin-top: 14px; }
.check { display: grid; place-items: center; width: 19px; height: 19px; flex: none; border-radius: 6px; background: #edf5f1; color: #538c74; font-size: 11px; }
.paper-task i { width: 150px; height: 6px; border-radius: 5px; background: #edf0f6; }
.paper-task:nth-of-type(5) i { width: 116px; }
.task-last i { width: 136px; }
.paper-footer { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding-top: 20px; margin-top: 18px; border-top: 1px solid #f0f3f8; color: #a1aabd; font-size: 9px; }
.paper-footer > span:first-child { width: 25px; height: 5px; background: #d4def7; border-radius: 4px; }
.clock-card { position: absolute; right: 5px; top: 202px; display: grid; place-items: center; width: 103px; height: 110px; background: #f4eadd; border: 5px solid #f7f9fc; border-radius: 25px; transform: rotate(11deg); box-shadow: 0 18px 30px -25px #54637d; }
.clock-face { position: relative; width: 58px; height: 58px; border: 2px solid #a88d6a; border-radius: 50%; }
.clock-face i, .clock-face b { position: absolute; display: block; left: 26px; top: 11px; width: 2px; height: 17px; transform-origin: bottom center; border-radius: 2px; background: #a88d6a; }
.clock-face b { transform: rotate(118deg); height: 13px; top: 15px; }
.clock-face span { position: absolute; left: 24px; top: 24px; width: 6px; height: 6px; border-radius: 50%; background: #a88d6a; }
.floating-star { position: absolute; color: var(--blue); font-size: 45px; top: 12px; right: 52px; transform: rotate(12deg); }
.art-label { position: absolute; bottom: 3px; left: 60px; display: flex; align-items: center; gap: 8px; color: #8e9aae; font-size: 10px; letter-spacing: .5px; }
.art-label span { width: 20px; height: 1px; background: #b9c6df; }
.about-section { display: grid; grid-template-columns: 1fr 1.1fr; gap: 70px; padding: 61px 0 59px; border-top: 1px solid var(--line); }
.section-label > span { color: #8491a5; font-size: 10px; letter-spacing: 2px; }
.section-label h2 { margin: 18px 0 0; font-size: 27px; line-height: 1.6; letter-spacing: -.6px; font-weight: 650; }
.about-copy { padding-top: 20px; max-width: 475px; }
.about-copy p { margin: 0 0 14px; color: #65748b; font-size: 14px; line-height: 1.9; }
.about-copy p:first-child { color: #34445d; font-size: 16px; }
.about-copy .quiet { color: #92a0b2; font-size: 12px; margin-top: 20px; }
.principles { padding: 26px 0 64px; }
.principles-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }
.principles-heading h2 { margin: 0; font-size: 18px; font-weight: 600; }
.principles-heading > span { font-size: 12px; color: #8c98aa; }
.principle-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 25px; }
.principle-grid article { padding: 25px 27px 27px; background: #fff; border: 1px solid #e6ebf2; border-radius: 12px; }
.principle-number { color: #9daec8; font-size: 11px; font-variant-numeric: tabular-nums; }
.principle-grid h3 { margin: 22px 0 11px; font-size: 17px; font-weight: 600; }
.principle-grid p { margin: 0; color: #7b879b; font-size: 12px; line-height: 1.9; }
.site-footer { padding: 26px 0 22px; border-top: 1px solid var(--line); text-align: center; font-size: 12px; line-height: 1.8; color: #7b879b; }
.footer-nav { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 12px; }
.footer-nav a { padding: 5px 0; }
.footer-nav > span { color: #b6c0ce; }
.site-footer a { color: #64758f; }
.footer-meta { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 18px; margin: 7px 0 0; }
.footer-meta > span { white-space: nowrap; }
.footer-record { display: flex; justify-content: center; margin-top: 6px; }
.site-footer .icp-record { display: inline-flex; align-items: center; min-height: 32px; white-space: nowrap; color: #52627b; font-size: 12px; line-height: 1.7; text-underline-offset: 3px; }
.site-footer .icp-record:hover { color: var(--blue); text-decoration: underline; }
@media (max-width: 1000px) {
  .site-wrap { width: calc(100% - 64px); }
  .hero { gap: 8px; grid-template-columns: 1.1fr 1fr; min-height: 520px; }
  .hero-art { transform: scale(.85); transform-origin: center right; }
  .paper { left: 20px; }
  .clock-card { right: -16px; }
  .hero-description { font-size: 13px; }
}
@media (max-width: 720px) {
  .site-wrap { width: calc(100% - 40px); }
  .site-header { min-height: 88px; }
  .brand { font-size: 17px; gap: 10px; }
  .brand img { width: 34px; height: 34px; }
  .site-header nav { gap: 17px; font-size: 11px; }
  .site-header nav a:last-child { display: none; }
  .hero { grid-template-columns: 1fr; padding: 43px 0 45px; gap: 15px; }
  h1 { font-size: clamp(33px, 7.6vw, 50px); line-height: 1.45; letter-spacing: -1.2px; }
  .eyebrow { margin-bottom: 21px; font-size: 11px; }
  .hero-description { margin-top: 20px; font-size: 12px; }
  .hero-art { width: 340px; max-width: 100%; margin: 0 auto; height: 355px; transform: scale(.9); transform-origin: center; }
  .paper { left: 20px; top: 25px; width: 256px; height: 286px; }
  .paper-front { padding: 22px; }
  .clock-card { right: -4px; top: 190px; width: 92px; height: 99px; }
  .floating-star { top: 0; right: 21px; }
  .art-label { bottom: 0; left: 25px; font-size: 9px; }
  .about-section { grid-template-columns: 1fr; gap: 20px; padding: 38px 0; }
  .section-label h2 { font-size: 25px; margin-top: 14px; }
  .about-copy { padding-top: 0; }
  .about-copy p { font-size: 13px; }
  .about-copy p:first-child { font-size: 15px; }
  .principles { padding: 12px 0 38px; }
  .principles-heading { display: block; }
  .principles-heading > span { display: block; margin-top: 12px; }
  .principle-grid { grid-template-columns: 1fr; gap: 12px; margin-top: 22px; }
  .principle-grid article { padding: 22px 25px; }
  .principle-grid h3 { margin-top: 13px; }
  .principle-grid p br { display: none; }
  .site-footer { padding: 25px 0 22px; }
  .footer-meta { column-gap: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .primary-link { transition: none; }
}