:root {
  color-scheme: light;
  font-family: "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  color: #17201b;
  background: #f3f5f3;
  font-synthesis: none;
  --ink: #17201b;
  --muted: #69746d;
  --line: #dfe5e1;
  --green: #185d43;
  --green-dark: #104a35;
  --green-soft: #e6f1eb;
}

* { box-sizing: border-box; }
body { min-width: 320px; min-height: 100vh; margin: 0; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.site-shell { width: min(1160px, calc(100% - 48px)); margin: 0 auto; }
.site-header { display: flex; align-items: center; justify-content: space-between; min-height: 76px; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand-mark { display: grid; place-items: center; width: 37px; height: 37px; border-radius: 11px; color: #fff; background: var(--green); font-size: 18px; font-weight: 800; }
.brand strong, .brand small { display: block; }
.brand strong { font-size: 13px; letter-spacing: -.2px; }
.brand small { margin-top: 3px; color: var(--muted); font-size: 10px; }
.site-header nav { display: flex; align-items: center; gap: 23px; font-size: 11px; font-weight: 700; }
.nav-link { display: inline-flex; align-items: center; min-height: 44px; color: #47544b; }
.nav-cta { display: inline-flex; align-items: center; justify-content: center; min-height: 40px; padding: 0 15px; border-radius: 8px; color: #fff; background: var(--green); }
.nav-cta:hover, .download-button:not(.is-disabled):hover { background: var(--green-dark); }
.hero { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(380px, .95fr); align-items: center; gap: clamp(40px, 8vw, 100px); padding: 78px 0 63px; }
.hero-copy { min-width: 0; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 7px 10px; border: 1px solid #cfe0d5; border-radius: 999px; color: var(--green-dark); background: #f8fbf8; font-size: 10px; font-weight: 700; }
.live-dot { width: 7px; height: 7px; border-radius: 50%; background: #26905d; box-shadow: 0 0 0 3px rgba(38, 144, 93, .12); }
h1 { margin: 23px 0 13px; font-size: clamp(36px, 5.2vw, 58px); line-height: 1.18; letter-spacing: -2px; }
h1 em { color: var(--green); font-style: normal; }
.hero-description { max-width: 450px; color: var(--muted); font-size: 13px; line-height: 1.9; }
.download-actions { display: grid; justify-items: start; gap: 13px; margin-top: 26px; }
.download-button { display: inline-flex; align-items: center; gap: 12px; min-width: 238px; min-height: 59px; padding: 9px 18px; border: 1px solid var(--green); border-radius: 9px; color: #fff; background: var(--green); transition: background .16s ease, transform .16s ease; }
.download-button:not(.is-disabled):hover { transform: translateY(-1px); }
.download-button.is-disabled { pointer-events: none; cursor: not-allowed; border-color: #cdd6d0; color: #556159; background: #e8ece9; }
.download-icon { display: grid; place-items: center; width: 29px; height: 29px; border: 1px solid rgba(255,255,255,.3); border-radius: 7px; font-size: 21px; line-height: 1; }
.is-disabled .download-icon { border-color: #cbd4ce; }
.download-button strong, .download-button small { display: block; text-align: left; }
.download-button strong { font-size: 12px; }
.download-button small { margin-top: 3px; opacity: .78; font-size: 9px; }
.login-link { display: inline-flex; align-items: center; min-height: 40px; color: var(--green-dark); font-size: 10px; font-weight: 700; }
.login-link span { padding-left: 3px; }
.download-status { min-height: 18px; margin-top: 10px; color: var(--muted); font-size: 9px; line-height: 1.6; }
.download-status.error { color: #a33c35; }
.product-card { overflow: hidden; border: 1px solid #dbe3dd; border-radius: 13px; background: #fff; box-shadow: 0 24px 70px rgba(24, 64, 43, .11); transform: rotate(1deg); }
.window-bar { display: flex; align-items: center; gap: 5px; height: 35px; padding: 0 12px; border-bottom: 1px solid #e8ede9; background: #fbfcfb; }
.window-bar > span { width: 7px; height: 7px; border-radius: 50%; background: #d9dfda; }
.window-bar > span:first-child { background: #d8a09b; }.window-bar > span:nth-child(2) { background: #e8d29d; }.window-bar > span:nth-child(3) { background: #a7c8b0; }
.window-bar small { margin-left: 7px; color: #79837c; font-size: 8px; }
.window-body { display: grid; grid-template-columns: 48px 1fr; min-height: 225px; }
.mock-sidebar { display: flex; align-items: center; flex-direction: column; gap: 12px; padding: 12px 7px; border-right: 1px solid #edf0ed; background: #fbfcfb; }
.mock-sidebar b { display: grid; place-items: center; width: 23px; height: 23px; border-radius: 7px; color: #fff; background: var(--green); font-size: 12px; }
.mock-sidebar i { width: 20px; height: 20px; border-radius: 6px; background: #edf1ed; }
.mock-sidebar i.selected { background: #deeee4; box-shadow: inset 0 0 0 1px #b8d5c1; }
.mock-content { padding: 14px 15px; }
.mock-heading { display: flex; justify-content: space-between; color: #304037; font-size: 9px; font-weight: 700; }
.mock-heading b { color: #26744d; font-size: 7px; }
.mock-welcome { display: grid; gap: 8px; margin-top: 15px; padding: 15px; border: 1px solid #e3e9e4; border-radius: 8px; background: linear-gradient(120deg, #f0f7f2, #fafcf9); }
.mock-welcome small { color: var(--green); font-size: 7px; }.mock-welcome strong { font-size: 11px; }.mock-welcome > span { width: 70px; height: 6px; border-radius: 99px; background: #dce8df; }
.mock-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px; margin-top: 9px; }
.mock-grid i { height: 36px; border: 1px solid #e7ece8; border-radius: 6px; background: #fff; }
.mock-list { display: grid; gap: 6px; margin-top: 11px; }.mock-list i { height: 5px; border-radius: 99px; background: #eef1ee; }.mock-list i:nth-child(2) { width: 77%; }.mock-list i:nth-child(3) { width: 88%; }
.card-caption { display: flex; align-items: center; gap: 9px; padding: 11px 14px; border-top: 1px solid #e9eeea; }
.caption-mark { display: grid; place-items: center; width: 23px; height: 23px; border-radius: 7px; color: var(--green); background: var(--green-soft); font-size: 12px; font-weight: 800; }
.card-caption strong, .card-caption small { display: block; }.card-caption strong { font-size: 9px; }.card-caption small { margin-top: 3px; color: var(--muted); font-size: 8px; }
.release-strip { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: 10px; background: #fff; }
.release-strip > div { min-width: 0; padding: 15px 19px; }.release-strip > div + div { border-left: 1px solid var(--line); }
.info-label { display: block; color: var(--muted); font-size: 9px; }.release-strip strong { display: block; overflow: hidden; margin-top: 6px; font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.details-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; margin-top: 15px; }
.detail-card { min-width: 0; padding: 24px; border: 1px solid var(--line); border-radius: 10px; background: #fff; }
.section-kicker { color: #748078; font-size: 8px; font-weight: 800; letter-spacing: 1.1px; }.detail-card h2 { margin-top: 9px; font-size: 17px; letter-spacing: -.3px; }
.steps { display: grid; gap: 13px; margin: 20px 0 0; padding: 0; list-style: none; counter-reset: step; }
.steps li { display: grid; grid-template-columns: 24px minmax(0,1fr); align-items: start; gap: 9px; counter-increment: step; }.steps li::before { content: "0" counter(step); padding-top: 1px; color: var(--green); font-size: 9px; font-weight: 800; }
.steps b { display: block; font-size: 10px; }.steps span { grid-column: 2; margin-top: -5px; color: var(--muted); font-size: 9px; line-height: 1.65; }
.note { margin-top: 19px; padding: 10px 11px; border-radius: 7px; color: #59665d; background: #f4f7f4; font-size: 8.5px; line-height: 1.65; }
.release-items { display: grid; gap: 8px; margin: 17px 0 0; padding-left: 16px; color: #57635a; font-size: 9px; line-height: 1.7; }.release-items li::marker { color: var(--green); }
.checksum { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 7px 10px; margin-top: 16px; padding: 10px; border: 1px solid #e6ebe7; border-radius: 7px; background: #fafbfa; }.checksum[hidden] { display: none; }.checksum > span { color: var(--muted); font-size: 9px; }.checksum code { grid-column: 1 / -1; display: block; min-width: 0; color: #304037; font-family: ui-monospace, "Cascadia Code", Consolas, monospace; font-size: 9px; line-height: 1.6; letter-spacing: .025em; overflow-wrap: anywhere; word-break: break-all; }.checksum button { min-height: 28px; padding: 3px 8px; border: 1px solid var(--line); border-radius: 5px; color: var(--green-dark); background: #fff; font-size: 9px; cursor: pointer; }
a:focus-visible, button:focus-visible { outline: 3px solid rgba(24, 93, 67, .32); outline-offset: 3px; }
.site-footer { display: flex; justify-content: space-between; gap: 12px; margin-top: 30px; padding: 18px 0 25px; border-top: 1px solid var(--line); color: var(--muted); font-size: 9px; }.site-footer a { color: var(--green-dark); font-weight: 700; }

@media (max-width: 800px) {
  .hero { grid-template-columns: minmax(0, 1fr) minmax(280px, .9fr); gap: 28px; padding: 55px 0 42px; }
  h1 { font-size: clamp(35px, 6vw, 47px); }.product-card { transform: none; }.release-strip > div { padding-inline: 12px; }
}
@media (max-width: 620px) {
  .site-shell { width: min(100% - 32px, 480px); }.site-header { min-height: 66px; }.brand small { display: none; }.site-header nav { gap: 12px; font-size: 10px; }.nav-cta { min-height: 40px; padding-inline: 11px; }
  .hero { grid-template-columns: minmax(0, 1fr); gap: 24px; padding: 42px 0 30px; }h1 { margin-top: 18px; font-size: clamp(36px, 10vw, 48px); }.hero-description { font-size: 12px; }.product-card { max-width: 440px; width: 100%; margin: 0 auto; }.window-body { min-height: 195px; }
  .release-strip { grid-template-columns: 1fr 1fr; }.release-strip > div { padding: 13px; }.release-strip > div:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }.release-strip > div:nth-child(4) { border-top: 1px solid var(--line); }
  .details-grid { grid-template-columns: 1fr; gap: 10px; margin-top: 10px; }.detail-card { padding: 19px; }.steps span, .release-items { font-size: 10px; }.site-footer { margin-top: 22px; font-size: 10px; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; } }