:root {
  --official-ink: #14231f;
  --official-deep: #0c1916;
  --official-green: #0f715e;
  --official-green-strong: #095747;
  --official-green-soft: #dceee8;
  --official-paper: #f5f7f6;
  --official-white: #ffffff;
  --official-muted: #62706b;
  --official-line: #d8dfdc;
  --official-warm: #e47742;
  --official-danger: #aa3f36;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--official-ink); background: var(--official-white); font-family: "Microsoft YaHei UI", "PingFang SC", "Noto Sans CJK SC", sans-serif; letter-spacing: 0; }
a { color: inherit; }
img { display: block; max-width: 100%; }
button, input { font: inherit; letter-spacing: 0; }
.official-page :focus-visible { outline: 3px solid #f2a77f; outline-offset: 3px; }

.official-skip { position: fixed; top: 8px; left: 8px; z-index: 100; padding: 10px 14px; background: #fff; color: var(--official-ink); transform: translateY(-140%); }
.official-skip:focus { transform: translateY(0); }
.official-header { position: sticky; top: 0; z-index: 30; display: grid; grid-template-columns: 310px 1fr 230px; align-items: center; min-height: 72px; padding: 0 max(32px,calc((100% - 1320px)/2)); border-bottom: 1px solid rgba(216,223,220,.88); background: rgba(255,255,255,.97); transition: box-shadow .2s ease; }
.official-header.is-scrolled { box-shadow: 0 10px 28px rgba(12,25,22,.09); }
.official-brand { display: inline-flex; align-items: center; gap: 12px; width: fit-content; text-decoration: none; }
.official-brand-mark { display: grid; width: 40px; height: 40px; place-items: center; border-radius: 4px; background: var(--official-green); color: #fff; font-family: SimSun, "Songti SC", serif; font-size: 18px; font-weight: 900; }
.official-brand > span:last-child { display: grid; gap: 2px; }
.official-brand strong { font-family: SimSun, "Songti SC", serif; font-size: 19px; white-space: nowrap; }
.official-brand small { color: #738079; font-size: 8px; font-weight: 800; }
.official-nav { display: flex; justify-content: center; gap: 42px; }
.official-nav a { position: relative; padding: 27px 0 23px; color: #43514c; font-size: 13px; font-weight: 650; text-decoration: none; }
.official-nav a::after { position: absolute; right: 0; bottom: 18px; left: 0; height: 2px; background: var(--official-green); content: ""; transform: scaleX(0); transition: transform .2s ease; }
.official-nav a:hover::after, .official-nav a:focus-visible::after { transform: scaleX(1); }
.official-auth-actions { justify-self: end; display: flex; align-items: center; gap: 8px; }
.official-register-link { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 11px; color: var(--official-green); font-size: 12px; font-weight: 800; text-decoration: none; }
.official-register-link:hover { text-decoration: underline; text-underline-offset: 4px; }
.official-login-link { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 44px; padding: 0 17px; border: 1px solid var(--official-ink); border-radius: 4px; font-size: 12px; font-weight: 800; text-decoration: none; transition: background .2s ease, color .2s ease; }
.official-login-link:hover { background: var(--official-ink); color: #fff; }

.official-hero { position: relative; min-height: min(650px,calc(100svh - 185px)); overflow: hidden; background: var(--official-deep) url("/static/images/product-workspace-overview.png") center 18%/cover no-repeat; color: #fff; }
.official-hero-shade { position: absolute; inset: 0; background: rgba(7,25,20,.76); }
.official-hero-content { position: relative; z-index: 2; display: flex; flex-direction: column; justify-content: center; width: min(1320px,calc(100% - 64px)); min-height: inherit; margin: 0 auto; padding: 64px 0 82px; }
.official-kicker { display: flex; align-items: center; gap: 11px; margin: 0 0 21px; color: #c4dad3; font-size: 11px; font-weight: 800; }
.official-kicker span { width: 28px; height: 2px; background: var(--official-warm); }
.official-hero h1 { width: min(860px,78%); margin: 0; font-family: SimSun, "Songti SC", serif; font-size: 72px; font-weight: 900; line-height: 1.1; }
.official-hero-lead { width: min(680px,62%); margin: 25px 0 0; color: #dce8e4; font-size: 17px; line-height: 1.9; }
.official-hero-actions { display: flex; align-items: center; gap: 28px; margin-top: 32px; }
.official-primary-action { display: inline-flex; align-items: center; justify-content: space-between; gap: 34px; min-height: 52px; padding: 0 21px; border-radius: 4px; background: var(--official-warm); color: #17221e; font-size: 13px; font-weight: 900; text-decoration: none; transition: transform .2s ease, background .2s ease; }
.official-primary-action:hover { background: #f09162; transform: translateY(-2px); }
.official-text-action { min-height: 44px; padding: 12px 0 9px; border-bottom: 1px solid rgba(255,255,255,.6); color: #fff; font-size: 12px; text-decoration: none; }
.official-hero-proof { display: flex; gap: 38px; margin: 38px 0 0; }
.official-hero-proof div { display: flex; align-items: baseline; gap: 8px; }
.official-hero-proof dt { font-family: Georgia, serif; font-size: 26px; font-weight: 700; }
.official-hero-proof dd { margin: 0; color: #b9cac4; font-size: 10px; }
.official-hero-caption { position: absolute; right: max(32px,calc((100% - 1320px)/2)); bottom: 30px; z-index: 2; display: grid; gap: 5px; padding-right: 14px; border-right: 2px solid var(--official-warm); text-align: right; }
.official-hero-caption span { color: #b9cac4; font-family: Georgia, serif; font-size: 9px; font-weight: 800; }
.official-hero-caption strong { font-size: 12px; }

.official-signal-band { display: grid; grid-template-columns: repeat(4,1fr); padding: 0 max(32px,calc((100% - 1320px)/2)); border-bottom: 1px solid var(--official-line); background: var(--official-paper); }
.official-signal-band div { display: grid; align-content: center; min-height: 112px; padding: 20px 25px; border-right: 1px solid var(--official-line); }
.official-signal-band div:first-child { border-left: 1px solid var(--official-line); }
.official-signal-band span { margin-bottom: 9px; color: var(--official-green); font-family: Georgia, serif; font-size: 9px; font-weight: 800; }
.official-signal-band strong { margin-bottom: 5px; font-size: 13px; }
.official-signal-band small { color: var(--official-muted); font-size: 10px; }

.official-capabilities { width: min(1320px,calc(100% - 64px)); margin: 0 auto; padding: 104px 0 112px; }
.official-section-heading, .official-trace-heading { display: grid; grid-template-columns: 1fr .9fr; gap: 9%; align-items: end; margin-bottom: 48px; }
.official-section-heading p, .official-workflow-copy > p, .official-trace-heading p, .official-governance header > p, .official-service > div > p, .official-mobile-intro > p, .official-mobile-product header > p, .official-mobile-governance > p, .official-mobile-cta > p { margin: 0 0 13px; color: var(--official-green); font-family: Georgia, serif; font-size: 10px; font-weight: 800; }
.official-section-heading h2, .official-workflow h2, .official-trace h2, .official-governance h2, .official-service h2 { margin: 0; font-family: SimSun, "Songti SC", serif; font-size: 40px; line-height: 1.3; }
.official-section-heading > span, .official-workflow-copy > span, .official-trace-heading > span, .official-governance header > span { color: var(--official-muted); font-size: 14px; line-height: 1.9; }
.official-capability-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); border-top: 1px solid var(--official-line); border-left: 1px solid var(--official-line); }
.official-capability { position: relative; min-height: 330px; padding: 34px 31px; border-right: 1px solid var(--official-line); border-bottom: 1px solid var(--official-line); background: #fff; transition: background .2s ease; }
.official-capability:hover { background: var(--official-paper); }
.official-capability.featured { background: var(--official-green); color: #fff; }
.official-feature-index { position: absolute; top: 27px; right: 27px; color: #87938f; font-family: Georgia, serif; font-size: 11px; }
.featured .official-feature-index { color: #add1c7; }
.official-feature-label { margin: 0 0 50px !important; color: var(--official-green) !important; font-family: Georgia, serif; font-size: 9px !important; font-weight: 800; }
.featured .official-feature-label { color: #b9ddd3 !important; }
.official-capability h3 { margin: 0 0 13px; font-size: 20px; }
.official-capability > p:not(.official-feature-label) { min-height: 66px; margin: 0; color: var(--official-muted); font-size: 13px; line-height: 1.75; }
.official-capability.featured > p:not(.official-feature-label) { color: #d6e9e4; }
.official-capability ul { display: grid; gap: 8px; margin: 22px 0 0; padding: 16px 0 0; border-top: 1px solid var(--official-line); list-style: none; }
.official-capability.featured ul { border-color: rgba(255,255,255,.25); }
.official-capability li { position: relative; padding-left: 13px; color: #50605a; font-size: 11px; }
.official-capability.featured li { color: #e7f3ef; }
.official-capability li::before { position: absolute; top: .45em; left: 0; width: 4px; height: 4px; background: var(--official-warm); content: ""; }

.official-workflow { display: grid; grid-template-columns: .72fr 1.28fr; gap: 76px; align-items: center; padding: 100px max(32px,calc((100% - 1320px)/2)); background: var(--official-paper); }
.official-workflow-copy > span { display: block; margin-top: 22px; }
.official-workflow ol { display: grid; margin: 34px 0 0; padding: 0; border-top: 1px solid var(--official-line); list-style: none; }
.official-workflow li { display: grid; grid-template-columns: 42px 1fr; gap: 14px; padding: 18px 0; border-bottom: 1px solid var(--official-line); }
.official-workflow li > b { color: var(--official-green); font-family: Georgia, serif; font-size: 11px; }
.official-workflow li div { display: grid; gap: 5px; }
.official-workflow li strong { font-size: 14px; }
.official-workflow li small { color: var(--official-muted); font-size: 10px; line-height: 1.6; }
.official-product-figure { position: relative; margin: 0; padding: 12px; border: 1px solid #cbd4d0; background: #fff; box-shadow: 0 24px 55px rgba(13,44,35,.14); }
.official-product-figure img { width: 100%; aspect-ratio: 16/10; object-fit: cover; object-position: top left; border: 1px solid #e2e7e4; }
.official-product-figure figcaption { display: flex; justify-content: space-between; gap: 20px; padding: 13px 2px 1px; color: #65736e; font-size: 9px; }
.official-product-figure figcaption span { color: var(--official-green); font-family: Georgia, serif; font-weight: 800; }
.official-product-figure figcaption strong { font-weight: 600; }

.official-trace { width: min(1320px,calc(100% - 64px)); margin: 0 auto; padding: 104px 0 112px; }
.official-trace-board { display: grid; grid-template-columns: 145px repeat(3,1fr) 1.1fr; border: 1px solid var(--official-line); }
.official-trace-board > div { min-height: 170px; padding: 24px; border-right: 1px solid var(--official-line); }
.official-trace-board > div:last-child { border-right: 0; }
.official-trace-date { display: grid; align-content: space-between; background: var(--official-deep); color: #fff; }
.official-trace-date strong { font-family: Georgia, serif; font-size: 31px; }
.official-trace-date span { color: #aec1ba; font-size: 10px; line-height: 1.6; }
.official-trace-entry, .official-trace-summary { display: grid; align-content: space-between; }
.official-trace-entry span, .official-trace-summary span { color: var(--official-green); font-family: Georgia, serif; font-size: 9px; font-weight: 800; }
.official-trace-entry strong, .official-trace-summary strong { font-size: 13px; line-height: 1.6; }
.official-trace-entry small, .official-trace-summary small { color: var(--official-muted); font-size: 9px; line-height: 1.6; }
.official-trace-summary { background: var(--official-green-soft); }

.official-governance { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; padding: 96px max(32px,calc((100% - 1320px)/2)); background: var(--official-deep); color: #fff; }
.official-governance header > p { color: #8ec6b7; }
.official-governance h2 { margin-bottom: 20px; }
.official-governance header > span { color: #aebeb8; }
.official-governance dl { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); margin: 0; border-top: 1px solid #32433d; border-left: 1px solid #32433d; }
.official-governance dl div { min-height: 138px; padding: 25px; border-right: 1px solid #32433d; border-bottom: 1px solid #32433d; }
.official-governance dt { margin-bottom: 13px; color: #fff; font-size: 14px; font-weight: 800; }
.official-governance dd { margin: 0; color: #9fb1aa; font-size: 11px; line-height: 1.75; }

.official-service { display: grid; grid-template-columns: 1.1fr .8fr auto; gap: 7%; align-items: center; padding: 72px max(32px,calc((100% - 1320px)/2)); background: var(--official-green); color: #fff; }
.official-service > div > p { color: #b7dbd1; }
.official-service h2 { max-width: 540px; font-size: 34px; }
.official-service > p { margin: 0; color: #d3e8e2; font-size: 12px; line-height: 1.8; }
.official-service > a { display: inline-flex; align-items: center; gap: 20px; min-height: 48px; padding: 0 19px; border-radius: 4px; background: #fff; color: var(--official-green-strong); font-size: 12px; font-weight: 900; text-decoration: none; white-space: nowrap; }
.official-footer { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; min-height: 112px; padding: 0 max(32px,calc((100% - 1320px)/2)); background: #07110e; color: #92a39d; }
.footer-brand { color: #fff; }
.official-footer p { font-size: 10px; }
.official-footer > span { justify-self: end; font-size: 9px; }

.official-mobile { overflow-x: hidden; background: var(--official-paper); }
.official-mobile .official-header { grid-template-columns: 1fr auto; min-height: 66px; padding: 0 16px; }
.official-mobile .official-brand { gap: 9px; min-width: 0; }
.official-mobile .official-brand-mark { width: 34px; height: 34px; flex: 0 0 34px; }
.official-mobile .official-brand strong { font-size: 17px; }
.official-mobile .official-brand small { font-size: 7px; }
.official-mobile .official-auth-actions { gap: 1px; }
.official-mobile .official-register-link { min-width: 44px; padding: 0 7px; }
.official-mobile .official-login-link { min-width: 48px; min-height: 44px; padding: 0 10px; }
.official-mobile .official-hero { min-height: min(570px,calc(100svh - 126px)); background-position: 38% top; }
.official-mobile .official-hero-shade { background: rgba(7,25,20,.78); }
.official-mobile .official-hero-content { width: auto; min-height: inherit; padding: 57px 20px 112px; }
.official-mobile .official-kicker { margin-bottom: 17px; font-size: 10px; }
.official-mobile .official-hero h1 { width: 100%; font-size: 46px; line-height: 1.14; }
.official-mobile .official-hero-lead { width: 100%; margin-top: 20px; font-size: 14px; line-height: 1.8; }
.official-mobile .official-primary-action { width: fit-content; min-height: 48px; margin-top: 27px; }
.official-mobile .official-hero-caption { right: 18px; bottom: 20px; }
.official-mobile-facts { display: grid; grid-template-columns: repeat(4,1fr); padding: 0 12px; border-bottom: 1px solid var(--official-line); background: #fff; }
.official-mobile-facts div { display: grid; align-content: center; min-width: 0; min-height: 128px; padding: 14px 8px; border-right: 1px solid var(--official-line); }
.official-mobile-facts div:first-child { border-left: 1px solid var(--official-line); }
.official-mobile-facts span { margin-bottom: 12px; color: var(--official-green); font-family: Georgia, serif; font-size: 9px; font-weight: 800; }
.official-mobile-facts strong { font-size: 12px; }
.official-mobile-facts small { margin-top: 5px; color: var(--official-muted); font-size: 9px; }
.official-mobile-intro, .official-mobile-product, .official-mobile-governance { padding: 68px 18px; }
.official-mobile-intro h2, .official-mobile-product h2, .official-mobile-governance h2, .official-mobile-cta h2 { margin: 0; font-family: SimSun, "Songti SC", serif; font-size: 29px; line-height: 1.38; }
.official-mobile-feature-list { margin-top: 31px; border-top: 1px solid var(--official-line); }
.official-mobile-feature-list article { display: grid; grid-template-columns: 36px 1fr; gap: 12px; padding: 19px 0; border-bottom: 1px solid var(--official-line); }
.official-mobile-feature-list article > b { color: var(--official-green); font-family: Georgia, serif; font-size: 10px; }
.official-mobile-feature-list h3 { margin: 0 0 6px; font-size: 16px; }
.official-mobile-feature-list p { margin: 0; color: var(--official-muted); font-size: 12px; line-height: 1.75; }
.official-mobile-product { background: #fff; }
.official-mobile-product figure { position: relative; margin: 27px 0 0; }
.official-mobile-product img { width: 100%; aspect-ratio: 4/3; border: 1px solid var(--official-line); object-fit: cover; object-position: top left; box-shadow: 0 15px 32px rgba(13,44,35,.12); }
.official-mobile-product figcaption { position: absolute; right: 7px; bottom: 7px; padding: 6px 8px; background: rgba(12,25,22,.9); color: #fff; font-size: 9px; }
.official-mobile-product ol { display: grid; gap: 9px; margin: 22px 0 0; padding: 0; list-style: none; }
.official-mobile-product li { display: grid; grid-template-columns: 28px 1fr; align-items: center; min-height: 46px; padding: 0 12px; border-left: 2px solid var(--official-green); background: var(--official-paper); font-size: 11px; }
.official-mobile-product li b { color: var(--official-green); font-family: Georgia, serif; }
.official-mobile-governance { background: var(--official-deep); color: #fff; }
.official-mobile-governance > p { color: #8ec6b7; }
.official-mobile-governance dl { margin: 29px 0 0; border-top: 1px solid #32433d; }
.official-mobile-governance dl div { padding: 18px 0; border-bottom: 1px solid #32433d; }
.official-mobile-governance dt { margin-bottom: 7px; font-size: 14px; font-weight: 800; }
.official-mobile-governance dd { margin: 0; color: #9fb1aa; font-size: 11px; line-height: 1.7; }
.official-mobile-cta { padding: 62px 20px max(70px,calc(52px + env(safe-area-inset-bottom))); background: var(--official-green); color: #fff; }
.official-mobile-cta > p { color: #b7dbd1; }
.official-mobile-cta a { display: inline-flex; align-items: center; justify-content: space-between; width: 100%; min-height: 50px; margin-top: 28px; padding: 0 16px; border-radius: 4px; background: #fff; color: var(--official-green-strong); font-size: 13px; font-weight: 900; text-decoration: none; }
.official-mobile .official-footer { display: flex; justify-content: space-between; min-height: 84px; padding: 0 18px max(0px,env(safe-area-inset-bottom)); }
.official-mobile .official-footer strong { color: #fff; font-size: 12px; }

.official-capability.will-reveal, .official-workflow-copy.will-reveal, .official-product-figure.will-reveal, .official-trace-board.will-reveal, .official-governance dl.will-reveal { transform: translateY(10px); transition: transform .5s ease, background .2s ease; }
.official-capability.will-reveal.is-visible, .official-workflow-copy.will-reveal.is-visible, .official-product-figure.will-reveal.is-visible, .official-trace-board.will-reveal.is-visible, .official-governance dl.will-reveal.is-visible { transform: translateY(0); }

@media (max-width: 1120px) {
  .official-desktop .official-header { grid-template-columns: 245px 1fr 210px; }
  .official-desktop .official-brand strong { font-size: 16px; }
  .official-desktop .official-nav { gap: 22px; }
  .official-desktop .official-hero h1 { font-size: 58px; }
  .official-workflow { gap: 48px; }
  .official-trace-board { grid-template-columns: 135px repeat(2,1fr); }
  .official-trace-entry:nth-of-type(4), .official-trace-summary { border-top: 1px solid var(--official-line); }
  .official-trace-summary { grid-column: span 2; }
  .official-service { grid-template-columns: 1fr 1fr; }
  .official-service > a { grid-column: 2; width: fit-content; }
}

@media (max-width: 860px) {
  .official-desktop .official-nav { display: none; }
  .official-desktop .official-header { grid-template-columns: 1fr auto; }
  .official-capability-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .official-workflow, .official-governance { grid-template-columns: 1fr; }
}

@media (max-width: 380px) {
  .official-mobile .official-brand strong { font-size: 15px; }
  .official-mobile .official-brand small { display: none; }
  .official-mobile .official-login-link { padding: 0 11px; }
  .official-mobile .official-register-link { padding: 0 5px; }
  .official-mobile .official-hero h1 { font-size: 42px; }
  .official-mobile-facts { padding: 0 8px; }
  .official-mobile-facts div { padding-right: 5px; padding-left: 5px; }
  .official-mobile-facts strong { font-size: 11px; }
}

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