:root {
  color-scheme: light;
  --c-primary: #1F3A93;
  --c-primary-weak: #EEF2FF;
  --c-primary-text: #2B4ACB;
  --c-text: #1A1D23;
  --c-text-2: #5B6370;
  --c-text-3: #8A919C;
  --c-line: #EEF0F3;
  --c-bg: #F5F6F8;
  --c-card: #FFFFFF;
  --c-cond-bg: #F4F6FC;
  font-family: 'PingFang SC', 'Noto Sans CJK SC', -apple-system, BlinkMacSystemFont, 'Microsoft YaHei', sans-serif;
  color: var(--c-text);
  background: var(--c-card);
  font-synthesis: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; -webkit-font-smoothing: antialiased; }
h1, h2, h3, p, figure { margin: 0; }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 3px solid var(--c-primary-text); outline-offset: 6px; border-radius: 3px; }
.shell { width: min(1120px, calc(100% - 80px)); margin-inline: auto; }
.skip-link { position: absolute; top: -70px; left: 16px; z-index: 10; padding: 12px; background: white; color: var(--c-primary); }
.skip-link:focus { top: 8px; }
.site-header { border-bottom: 1px solid var(--c-line); }
.header-inner { height: 88px; display: flex; align-items: center; justify-content: space-between; }
.wordmark { display: inline-flex; align-items: baseline; color: var(--c-primary); font-size: 27px; font-weight: 750; letter-spacing: -1.2px; }
.wordmark span { font-weight: 450; }
.wordmark i { width: 6px; height: 6px; margin-left: 4px; border-radius: 50%; background: var(--c-primary-text); }
nav { display: flex; gap: 36px; font-size: 14px; color: var(--c-text-2); }
nav a { padding-block: 12px; }
nav a:hover, .filing a:hover { color: var(--c-primary-text); }
nav span { margin-left: 8px; }
.hero { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 72px; padding-block: 88px 92px; }
.eyebrow { display: flex; align-items: center; gap: 9px; color: var(--c-primary); font-size: 13px; font-weight: 600; letter-spacing: 1.5px; }
.eyebrow span { width: 6px; height: 6px; border-radius: 50%; background: var(--c-primary); }
h1 { margin-top: 23px; font-size: clamp(38px, 3.6vw, 52px); line-height: 1.4; font-weight: 650; letter-spacing: -1.8px; }
h1 span { color: var(--c-primary); }
.intro { margin-top: 22px; color: var(--c-text-2); font-size: 16px; line-height: 1.9; }
.primary-link { display: inline-flex; align-items: center; gap: 43px; min-height: 48px; padding: 0 21px; margin-top: 31px; border-radius: 10px; background: var(--c-primary); color: white; font-size: 14px; font-weight: 600; }
.primary-link:hover { background: #182F7C; }
.primary-link span { font-size: 20px; font-weight: 400; }
.hero-note { margin-top: 15px; color: var(--c-text-2); font-size: 12px; }
.path-preview { position: relative; border: 1px solid var(--c-line); border-radius: 12px; background: var(--c-bg); padding: 24px; }
.preview-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--c-text-2); font-size: 12px; margin-bottom: 22px; }
.sample-label { font-size: 10px; padding: 3px 7px; border: 1px solid #D9DFEA; border-radius: 4px; white-space: nowrap; }
.path-item { display: grid; grid-template-columns: 28px 1fr 24px; align-items: center; gap: 12px; position: relative; padding: 19px 16px; border-radius: 8px; background: var(--c-card); border: 1px solid var(--c-line); }
.path-item + .path-item { margin-top: 12px; }
.path-number { color: var(--c-primary); font-size: 14px; align-self: start; padding-top: 4px; font-variant-numeric: tabular-nums; }
.path-caption { font-size: 10px; color: var(--c-text-2); }
.path-item h2 { font-size: 16px; font-weight: 600; line-height: 1.5; margin-top: 3px; }
.path-item p { margin-top: 5px; font-size: 12px; color: var(--c-text-2); line-height: 1.6; }
.path-icon { width: 23px; height: 23px; stroke: var(--c-primary); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.preview-bottom { display: flex; align-items: center; gap: 9px; margin-top: 22px; color: var(--c-text-2); font-size: 11px; letter-spacing: 1px; }
.preview-bottom span { font-size: 20px; color: var(--c-primary); line-height: 1; }
.features-section { background: var(--c-bg); padding-block: 63px 65px; scroll-margin-top: 24px; }
.section-label { color: var(--c-primary); font-size: 12px; letter-spacing: 1.6px; font-weight: 600; }
.section-heading h2, .mini-copy h2 { font-size: 29px; font-weight: 600; letter-spacing: -.7px; margin-top: 12px; line-height: 1.5; }
.features { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: 33px; }
.feature { padding: 0 24px; border-left: 1px solid #DBDFE7; }
.feature:first-child { padding-left: 0; border-left: 0; }
.feature:last-child { padding-right: 0; }
.feature-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 20px; }
.feature-top svg { width: 27px; height: 27px; stroke: var(--c-primary); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.feature-top span { color: var(--c-text-2); font-size: 10px; letter-spacing: 1.1px; }
.feature h3 { font-size: 19px; font-weight: 600; }
.feature p { font-size: 14px; line-height: 1.9; color: var(--c-text-2); margin-top: 12px; text-wrap: pretty; }
.mini-code { scroll-margin-block: 100px; }
.mini-section { display: flex; justify-content: space-between; align-items: center; gap: 40px; padding-block: 64px; scroll-margin-top: 24px; }
.mini-copy p:last-child { font-size: 14px; line-height: 1.9; color: var(--c-text-2); margin-top: 15px; }
.mini-code { display: flex; align-items: center; gap: 26px; }
.mini-code img { display: block; background: var(--c-cond-bg); border-radius: 8px; }
.mini-code figcaption { font-size: 13px; color: var(--c-text-2); line-height: 1.7; }
.mini-code figcaption span { display: block; font-size: 12px; margin-top: 5px; }
.site-footer { border-top: 1px solid var(--c-line); padding-bottom: env(safe-area-inset-bottom); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 80px; color: var(--c-text-2); font-size: 11px; }
.filing { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; text-align: center; }
.filing a { display: inline-flex; align-items: center; min-height: 44px; font-size: 12px; line-height: 1.7; }
.public-security-placeholder { display: inline-flex; align-items: center; gap: 5px; }
.public-security-icon { display: inline-block; width: 16px; height: 16px; }
.footer-note { letter-spacing: 1px; }
@media (max-width: 1000px) {
  .hero { gap: 36px; }
  .path-preview { padding: 20px; }
  .path-item { padding: 16px 12px; grid-template-columns: 24px 1fr 20px; gap: 8px; }
  .path-item h2 { font-size: 15px; }
  .feature { padding-inline: 22px; }
  .features { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 30px; }
  .feature:nth-child(3) { border-left: 0; padding-left: 0; }
  .desktop-break { display: none; }
  .mini-code { gap: 18px; }
}
@media (max-width: 700px) {
  .shell { width: calc(100% - 40px); }
  .header-inner { height: 72px; }
  .wordmark { font-size: 25px; }
  nav { gap: 0; font-size: 12px; }
  .nav-features { display: none; }
  .hero { display: block; padding-block: 45px 40px; }
  .eyebrow { font-size: 11px; }
  h1 { font-size: 36px; line-height: 1.45; letter-spacing: -1.5px; margin-top: 17px; }
  .intro { font-size: 14px; line-height: 1.9; margin-top: 18px; max-width: 350px; }
  .primary-link { margin-top: 24px; }
  .hero-note { margin-top: 12px; font-size: 11px; }
  .path-preview { margin-top: 33px; padding: 18px; }
  .preview-top { margin-bottom: 16px; font-size: 11px; }
  .path-item { padding: 14px 12px; grid-template-columns: 23px 1fr 22px; gap: 10px; }
  .path-item h2 { font-size: 15px; }
  .path-item p { font-size: 11px; }
  .path-item + .path-item { margin-top: 10px; }
  .preview-bottom { margin-top: 17px; font-size: 10px; }
  .features-section { padding-block: 39px 15px; }
  .section-label { font-size: 10px; letter-spacing: 1.3px; }
  .section-heading h2, .mini-copy h2 { font-size: 24px; margin-top: 10px; }
  .features { grid-template-columns: 1fr; margin-top: 22px; row-gap: 0; }
  .feature, .feature:first-child, .feature:last-child { padding: 23px 0 25px; border: 0; border-top: 1px solid #DBDFE7; }
  .feature-top { margin-bottom: 13px; }
  .feature-top svg { width: 25px; height: 25px; }
  .feature-top span { font-size: 9px; }
  .feature h3 { font-size: 18px; }
  .feature p { font-size: 13px; margin-top: 8px; }
  .mini-section { display: block; padding-block: 39px; }
  .mini-copy p:last-child { font-size: 13px; margin-top: 12px; }
  .mini-code { margin-top: 25px; gap: 23px; }
  .mini-code img { width: 120px; height: 120px; }
  .mini-code figcaption { font-size: 12px; }
  .mini-code figcaption span { font-size: 11px; }
  .footer-inner { flex-direction: column; align-items: flex-start; padding-block: 24px; gap: 12px; font-size: 10px; }
  .footer-note { display: none; }
  .filing { text-align: left; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }