:root {
  color-scheme: light;
  --bg: #f7f8f4;
  --surface: #ffffff;
  --surface-soft: #f1f4ec;
  --line: rgba(24, 39, 27, .1);
  --line-bright: rgba(24, 39, 27, .16);
  --text: #172019;
  --muted: #68736b;
  --green: #a6df5b;
  --green-ink: #568809;
  --green-dark: #eef8df;
  --orange: #ff9b68;
  --orange-ink: #c65a28;
  --orange-dark: #fff0e8;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
.ambient { position: fixed; z-index: -2; width: 620px; height: 620px; border-radius: 50%; filter: blur(130px); opacity: .11; pointer-events: none; }
.ambient-one { top: -300px; left: -160px; background: #9aabff; }
.ambient-two { right: -220px; top: 480px; background: #b9e77c; opacity: .13; }
body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: linear-gradient(rgba(23,32,25,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(23,32,25,.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, #000, transparent 82%);
  pointer-events: none;
  content: "";
}

.site-header { 
  position: relative;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(var(--max), calc(100% - 48px));
  height: 92px;
  margin: 0 auto;
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-mark { display: grid; width: 38px; height: 38px; place-items: center; border-radius: 12px; background: var(--green); color: #16210e; font-size: 19px; font-weight: 900; box-shadow: 0 10px 28px rgba(86, 136, 9, .14); }
.brand-copy { display: flex; flex-direction: column; line-height: 1; }
.brand-copy strong { font-size: 14px; letter-spacing: .08em; }
.brand-copy small { margin-top: 5px; color: var(--muted); font-size: 8px; letter-spacing: .18em; }
nav { display: flex; align-items: center; gap: 22px; }
nav a { color: #566159; font-size: 13px; text-decoration: none; transition: color .2s; }
nav a:hover { color: var(--text); }

.section-shell { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.hero { display: grid; grid-template-columns: 1fr .72fr; gap: 110px; align-items: center; min-height: 590px; padding: 72px 0 88px; }
.hero-copy { max-width: 680px; }
.eyebrow, .section-index { color: #78827a; font-size: 10px; font-weight: 800; letter-spacing: .22em; }
.eyebrow { display: flex; align-items: center; gap: 10px; }
.eyebrow span { width: 22px; height: 1px; background: var(--green); }
h1 { max-width: 680px; margin: 22px 0 22px; font-size: clamp(48px, 5.8vw, 76px); letter-spacing: -.055em; line-height: 1; }
h1 em { color: var(--green-ink); font-style: normal; }
.hero-copy > p { max-width: 560px; margin: 0; color: var(--muted); font-size: 17px; line-height: 1.85; }
.hero-actions { display: flex; align-items: center; gap: 22px; margin-top: 30px; }
.primary-action, .download-button { display: inline-flex; align-items: center; text-decoration: none; }
.primary-action { gap: 24px; padding: 15px 18px 15px 22px; border-radius: 12px; background: var(--green); color: #14200d; font-size: 13px; font-weight: 800; box-shadow: 0 12px 32px rgba(86, 136, 9, .16); transition: transform .2s, box-shadow .2s; }
.primary-action:hover { transform: translateY(-2px); box-shadow: 0 16px 40px rgba(86, 136, 9, .22); }
.primary-action span { font-size: 18px; }
.text-action { color: #4f5a52; font-size: 13px; text-decoration: none; }
.text-action span { margin-left: 7px; color: var(--green-ink); }
.trust-list { display: flex; gap: 20px; margin: 26px 0 0; padding: 0; color: var(--muted); font-size: 11px; list-style: none; }
.trust-list li { display: flex; align-items: center; gap: 7px; }
.trust-list span { display: grid; width: 16px; height: 16px; place-items: center; border: 1px solid rgba(86,136,9,.28); border-radius: 50%; color: var(--green-ink); font-size: 9px; }

.hero-visual { position: relative; min-width: 0; }
.overview-card { position: relative; overflow: hidden; padding: 36px 34px; border-left: 3px solid var(--green); background: #ffffff; box-shadow: 0 18px 55px rgba(30,48,34,.07); transition: box-shadow .3s ease, transform .3s ease; }
.overview-card::after { position: absolute; top: 0; right: 34px; width: 42px; height: 3px; background: var(--green); content: ""; animation: slide-in .9s .25s ease-out both; }
.overview-card:hover { transform: translateY(-4px); box-shadow: 0 24px 65px rgba(30,48,34,.11); }
.overview-kicker { color: var(--green-ink); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 10px; font-weight: 800; letter-spacing: .14em; }
.overview-card h2 { margin: 26px 0 16px; font-size: clamp(28px, 3.2vw, 42px); letter-spacing: -.055em; line-height: 1.12; }
.overview-card p { max-width: 260px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.overview-rule { width: 100%; height: 1px; margin: 28px 0 18px; background: var(--line); }
.overview-meta { display: flex; gap: 22px; color: #68736b; font-size: 11px; }

.signal-bar { display: grid; grid-template-columns: repeat(3, 1fr); width: min(var(--max), calc(100% - 48px)); margin: 0 auto; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.62); }
.signal-bar div { display: flex; gap: 16px; align-items: center; min-height: 78px; padding: 18px 28px; border-right: 1px solid var(--line); }
.signal-bar div:last-child { border-right: 0; }
.signal-bar strong { color: var(--green-ink); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 11px; }
.signal-bar span { color: #566159; font-size: 12px; line-height: 1.7; }

.tools-section, .guide-section { padding-top: 112px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; margin-bottom: 32px; }
.section-heading h2 { margin: 10px 0 0; font-size: clamp(32px, 3.7vw, 46px); letter-spacing: -.045em; }
.section-heading > p { max-width: 360px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; text-align: right; }
.product-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.product-card { position: relative; overflow: hidden; padding: 28px; border: 1px solid var(--line); border-radius: 18px; background: #ffffff; box-shadow: 0 14px 42px rgba(30,48,34,.045); transition: box-shadow .3s ease, transform .3s ease, border-color .3s ease; }
.product-card:hover { border-color: rgba(86,136,9,.22); box-shadow: 0 22px 54px rgba(30,48,34,.1); transform: translateY(-5px); }
.product-card::before { position: absolute; top: 0; left: 0; width: 100%; height: 2px; content: ""; }
.product-green::before { background: linear-gradient(90deg, var(--green), transparent 70%); }
.product-orange::before { background: linear-gradient(90deg, var(--orange), transparent 70%); }
.product-topline { display: flex; justify-content: space-between; align-items: center; }
.platform-badge { display: inline-flex; align-items: center; gap: 8px; color: #6f7a72; font-size: 8px; font-weight: 800; letter-spacing: .15em; }
.platform-badge i { width: 6px; height: 6px; border-radius: 50%; }
.product-green .platform-badge i { background: #75b820; box-shadow: 0 0 10px rgba(117,184,32,.34); }
.product-orange .platform-badge i { background: var(--orange); box-shadow: 0 0 10px rgba(255,155,104,.34); }
.release-date { color: #8a948c; font-size: 9px; }
.product-identity { display: flex; align-items: center; gap: 16px; margin-top: 24px; }
.product-icon { display: grid; flex: 0 0 58px; width: 58px; height: 58px; place-items: center; border-radius: 14px; font-size: 10px; font-weight: 900; line-height: 1.05; text-align: center; transition: transform .3s ease; }
.product-card:hover .product-icon { transform: translateY(-3px) rotate(-2deg); }
.product-green .product-icon { background: var(--green); color: #16210e; box-shadow: 0 15px 34px rgba(86,136,9,.14); }
.product-orange .product-icon { background: var(--orange); color: #35170a; box-shadow: 0 15px 34px rgba(198,90,40,.14); }
.product-identity h3 { margin: 0; font-size: clamp(20px, 2.1vw, 26px); letter-spacing: -.035em; }
.product-summary { min-height: 54px; margin: 22px 0 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.tool-preview { margin-top: 20px; padding: 13px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface-soft); }
.tool-preview-title { display: block; margin-bottom: 10px; color: #879188; font-size: 8px; font-weight: 800; letter-spacing: .14em; }
.preview-steps { display: flex; align-items: center; gap: 8px; color: #4f5a52; font-size: 10px; }
.preview-steps span { padding: 5px 7px; border-radius: 6px; background: #ffffff; }
.preview-steps i { color: var(--green-ink); font-style: normal; }
.feature-list { display: grid; grid-template-columns: 1fr 1fr; gap: 11px 14px; margin: 24px 0 0; padding: 20px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); color: #566159; font-size: 11px; list-style: none; }
.feature-list li { display: flex; gap: 8px; align-items: center; }
.feature-list li:last-child { grid-column: 1 / -1; }
.product-green .feature-list span { color: var(--green-ink); }
.product-orange .feature-list span { color: var(--orange-ink); }
.product-meta { display: flex; margin-top: 22px; }
.product-meta span { min-width: 96px; padding-right: 22px; color: #3d4840; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 11px; }
.product-meta small { display: block; margin-bottom: 6px; color: #879188; font-family: inherit; font-size: 8px; }
.product-actions { display: flex; align-items: center; gap: 18px; margin-top: 24px; }
.download-button { flex: 1; gap: 12px; min-height: 58px; padding: 10px 14px; border-radius: 13px; font-size: 12px; font-weight: 800; transition: transform .2s, filter .2s; }
.product-green .download-button { background: var(--green); color: #14200d; }
.product-orange .download-button { background: var(--orange); color: #321408; }
.download-button:hover { transform: translateY(-2px); filter: brightness(1.05); }
.download-icon { display: grid; width: 32px; height: 32px; place-items: center; border: 1px solid rgba(0,0,0,.14); border-radius: 9px; font-size: 17px; }
.download-button > span:nth-child(2) { display: flex; flex: 1; flex-direction: column; }
.download-button small { margin-bottom: 2px; opacity: .54; font-size: 7px; letter-spacing: .14em; }
.download-button b { font-size: 18px; }
.guide-link { color: #68736b; font-size: 10px; text-underline-offset: 4px; }
.download-notes { margin-top: 18px; border-top: 1px solid var(--line); }
.download-notes summary { padding-top: 14px; }
.download-notes summary span { display: inline-block; transition: transform .2s ease; }
.download-notes[open] summary span { transform: rotate(45deg); }
.download-notes ul { margin: 12px 0 0; padding-left: 17px; color: var(--muted); font-size: 10px; line-height: 1.8; }

.guide-section { padding-bottom: 112px; }
.compact-heading { margin-bottom: 30px; }
.guide-grid { display: grid; grid-template-columns: 1fr 1fr .82fr; gap: 18px; }
.guide-card, .integrity-card { min-width: 0; border: 1px solid var(--line); border-radius: 16px; background: rgba(255,255,255,.82); box-shadow: 0 12px 34px rgba(30,48,34,.035); transition: box-shadow .3s ease, transform .3s ease, border-color .3s ease; }
.guide-card:hover, .integrity-card:hover { border-color: rgba(86,136,9,.18); box-shadow: 0 18px 44px rgba(30,48,34,.08); transform: translateY(-4px); }
.guide-card { display: flex; gap: 18px; padding: 22px; }
.guide-number { color: #8a948c; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 10px; }
.guide-title { display: flex; align-items: center; gap: 12px; }
.guide-title h3 { margin: 0; font-size: 15px; }
.mini-logo { display: grid; width: 32px; height: 32px; place-items: center; border-radius: 9px; font-size: 10px; font-weight: 900; }
.green-logo { background: var(--green-dark); color: var(--green-ink); }
.orange-logo { background: var(--orange-dark); color: var(--orange-ink); }
.guide-card ol { margin: 22px 0 0; padding-left: 17px; color: var(--muted); font-size: 11px; line-height: 2.15; }
.guide-card code { padding: 3px 5px; border: 1px solid var(--line); border-radius: 5px; background: var(--surface-soft); color: #465149; font-size: 9px; }
.integrity-card { padding: 22px; }
.integrity-icon { display: grid; width: 42px; height: 42px; margin-bottom: 22px; place-items: center; border: 1px solid var(--line-bright); border-radius: 12px; color: var(--green-ink); font-size: 20px; }
.integrity-card h3 { margin: 10px 0 8px; font-size: 18px; }
.integrity-card > p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.7; }
details { margin-top: 20px; border-top: 1px solid var(--line); }
summary { display: flex; justify-content: space-between; padding: 16px 0 0; color: #566159; font-size: 10px; cursor: pointer; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary span { color: var(--green-ink); }
.hash-list { margin-top: 16px; }
.hash-list div + div { margin-top: 14px; }
.hash-list strong { display: block; margin-bottom: 5px; color: #5e6961; font-size: 9px; }
.hash-list code { display: block; overflow-wrap: anywhere; color: #7b867e; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 7px; line-height: 1.5; }
.hash-row { display: flex; align-items: flex-start; gap: 8px; }
.hash-row code { flex: 1; min-width: 0; }
.copy-hash { flex: 0 0 auto; padding: 5px 7px; border: 1px solid var(--line-bright); border-radius: 6px; background: #ffffff; color: var(--green-ink); font: inherit; font-size: 9px; cursor: pointer; transition: background .2s ease, border-color .2s ease; }
.copy-hash:hover { border-color: rgba(86,136,9,.35); background: var(--green-dark); }
.copy-hash:active { transform: translateY(1px); }
.hash-command { margin: 16px 0 0; color: #68736b; font-size: 9px; line-height: 1.7; }
.hash-command code { color: #566159; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; }
.copy-status { min-height: 15px; margin: 7px 0 0; color: var(--green-ink); font-size: 9px; }

body.error-page { display: grid; min-height: 100vh; place-items: center; padding: 28px; }
.error-shell { width: min(560px, 100%); padding: 42px; border: 1px solid var(--line); border-radius: 18px; background: #ffffff; box-shadow: 0 18px 55px rgba(30,48,34,.07); }
.error-code { display: block; color: var(--green-ink); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 12px; font-weight: 800; letter-spacing: .18em; }
.error-kicker { margin: 18px 0 0; color: #7a857d; font-size: 11px; }
.error-shell h1 { margin: 14px 0 14px; font-size: clamp(34px, 6vw, 52px); letter-spacing: -.055em; }
.error-shell > p:not(.error-kicker) { max-width: 420px; margin: 0 0 26px; color: var(--muted); font-size: 14px; line-height: 1.8; }

.site-footer { display: grid; grid-template-columns: auto 1fr auto; gap: 36px; align-items: center; width: min(var(--max), calc(100% - 48px)); min-height: 120px; margin: 0 auto; border-top: 1px solid var(--line); color: #778179; }
.footer-brand .brand-mark { width: 32px; height: 32px; border-radius: 10px; font-size: 15px; }
.site-footer p { font-size: 11px; }
.site-footer > div:last-child { display: flex; gap: 24px; align-items: center; font-size: 9px; }
.site-footer a { color: #59645c; text-decoration: none; }

.motion-ready [data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s cubic-bezier(.22, 1, .36, 1); }
.motion-ready [data-reveal="left"] { transform: translateX(-20px); }
.motion-ready [data-reveal="right"] { transform: translateX(20px); }
.motion-ready [data-reveal].is-visible { opacity: 1; transform: none; }
.motion-ready .product-card[data-reveal].is-visible:hover { transform: translateY(-5px); }
.motion-ready .guide-card[data-reveal].is-visible:hover, .motion-ready .integrity-card[data-reveal].is-visible:hover { transform: translateY(-4px); }
.motion-ready .overview-card:hover { transform: translateY(-4px); }
.motion-ready .product-card[data-reveal], .motion-ready .guide-card[data-reveal], .motion-ready .integrity-card[data-reveal] { transition: opacity .65s ease, transform .65s cubic-bezier(.22, 1, .36, 1), box-shadow .3s ease, border-color .3s ease; }
.motion-ready .product-card:nth-child(2), .motion-ready .guide-card:nth-child(2), .motion-ready .integrity-card { transition-delay: .08s; }
.scroll-progress { position: fixed; top: 0; left: 0; z-index: 50; width: 100%; height: 3px; background: var(--green); transform: scaleX(0); transform-origin: left center; pointer-events: none; }
a:focus-visible, summary:focus-visible { outline: 2px solid var(--green-ink); outline-offset: 4px; }
@keyframes slide-in { from { opacity: 0; transform: translateX(-30px); } to { opacity: 1; transform: translateX(0); } }

@media (max-width: 920px) {
  .hero { grid-template-columns: 1fr; gap: 48px; padding: 68px 0 82px; }
  .hero-copy { max-width: 680px; }
  .hero-visual { width: min(520px, 100%); }
  .signal-bar { grid-template-columns: 1fr; }
  .signal-bar div { border-right: 0; border-bottom: 1px solid var(--line); }
  .signal-bar div:last-child { border-bottom: 0; }
  .product-grid { grid-template-columns: 1fr; }
  .guide-grid { grid-template-columns: 1fr 1fr; }
  .integrity-card { grid-column: 1 / -1; }
}

@media (max-width: 620px) {
  .site-header, .section-shell, .signal-bar, .site-footer { width: min(100% - 28px, var(--max)); }
  .site-header { height: 76px; }
  nav { gap: 14px; }
  nav a { display: inline-flex; font-size: 12px; }
  .hero { min-height: 0; padding: 60px 0 82px; }
  h1 { margin-top: 21px; font-size: clamp(46px, 15vw, 66px); }
  .hero-copy > p { font-size: 14px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 18px; }
  .trust-list { flex-wrap: wrap; gap: 12px 18px; }
  .overview-card { padding: 28px 24px; }
  .tools-section, .guide-section { padding-top: 100px; }
  .section-heading { align-items: start; flex-direction: column; gap: 14px; }
  .section-heading > p { text-align: left; }
  .product-card { padding: 22px; }
  .product-identity { align-items: flex-start; flex-direction: column; }
  .product-summary { min-height: 0; }
  .preview-steps { flex-wrap: wrap; }
  .preview-steps i { display: none; }
  .feature-list { grid-template-columns: 1fr; }
  .feature-list li:last-child { grid-column: auto; }
  .product-meta { gap: 14px; }
  .product-meta span { min-width: 0; padding-right: 0; }
  .product-actions { align-items: stretch; flex-direction: column; }
  .guide-link { text-align: center; }
  .guide-grid { grid-template-columns: 1fr; }
  .integrity-card { grid-column: auto; }
  .guide-section { padding-bottom: 100px; }
  .site-footer { grid-template-columns: 1fr; gap: 18px; padding: 30px 0; }
  .site-footer > div:last-child { align-items: flex-start; flex-direction: column; gap: 8px; }
  .error-shell { padding: 28px 24px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .motion-ready [data-reveal], .motion-ready [data-reveal].is-visible { opacity: 1; transform: none; }
  .scroll-progress { display: none; }
}