:root{--oo-navy:#0b2f63;--oo-deep:#071a35;--oo-blue:#155fc0;--oo-gold:#f28a3a;--oo-gold2:#ffad5c;--oo-ink:#152b44;--oo-muted:#6b7887;--oo-paper:#f3f6fa;--oo-line:#dde2e7;--oo-shadow:0 24px 64px rgba(9,31,59,.15)}*{box-sizing:border-box}.office-oa-page{margin:0;color:var(--oo-ink);background:#fff;font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif}.office-oa-page a{text-decoration:none}.office-oa-page img{display:block}.office-oa-page .shell{width:min(1180px,calc(100% - 40px));margin:auto}.oo-kicker,.oo-overline{margin:0 0 10px;color:var(--oo-gold);font-size:9px;font-weight:950;letter-spacing:.1em;text-transform:uppercase}.oo-button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border:1px solid transparent;border-radius:5px;font-size:12px;font-weight:900;transition:transform .2s ease,background .2s ease,box-shadow .2s ease}.oo-button:hover{transform:translateY(-2px)}.oo-button.primary{color:#101d2d;background:var(--oo-gold2);box-shadow:0 14px 30px rgba(196,154,74,.23)}.oo-button.ghost{color:#fff;border-color:rgba(255,255,255,.34);background:rgba(255,255,255,.06)}
.oo-hero{position:relative;min-height:700px;overflow:hidden;color:#fff;background:var(--oo-deep)}.oo-hero__media{position:absolute;inset:0}.oo-hero__media:after{position:absolute;inset:0;content:"";background:linear-gradient(90deg,rgba(5,22,43,.96) 0%,rgba(5,22,43,.84) 38%,rgba(5,22,43,.2) 68%,rgba(5,22,43,.04) 100%)}.oo-hero__media img{width:100%;height:100%;object-fit:cover;object-position:center}.oo-hero__inner{position:relative;z-index:1;display:flex;align-items:center;min-height:700px}.oo-hero__copy{max-width:770px;padding:76px 0}.oo-hero .oo-overline{color:var(--oo-gold2)}.oo-hero h1{margin:14px 0 0;color:#fff;font-size:clamp(48px,5.7vw,80px);font-weight:950;letter-spacing:-.06em;line-height:1.02;white-space:nowrap}.oo-hero__claim{margin:20px 0 0;font-size:clamp(22px,2.4vw,34px);font-weight:900;line-height:1.25}.oo-hero__lead{max-width:710px;margin:17px 0 0;color:rgba(255,255,255,.68);font-size:14px;line-height:1.86}.oo-actions{display:flex;gap:10px;margin-top:27px}.oo-proof{display:grid;grid-template-columns:repeat(3,1fr);margin:31px 0 0;padding:0;border-top:1px solid rgba(255,255,255,.18);border-bottom:1px solid rgba(255,255,255,.18);list-style:none}.oo-proof li{padding:16px;border-right:1px solid rgba(255,255,255,.14)}.oo-proof li:first-child{padding-left:0}.oo-proof li:last-child{border-right:0}.oo-proof strong,.oo-proof span{display:block}.oo-proof strong{font-size:13px}.oo-proof span{margin-top:5px;color:rgba(255,255,255,.48);font-size:8px;line-height:1.5}
.oo-anchor{position:sticky;top:var(--header-height,0);z-index:60;border-bottom:1px solid var(--oo-line);background:rgba(255,255,255,.96);backdrop-filter:blur(14px)}.xb-shell-embedded .oo-anchor{top:0}.oo-anchor__scroll{display:flex;justify-content:center;overflow:auto;scrollbar-width:none}.oo-anchor__scroll a{flex:0 0 auto;display:flex;align-items:center;min-height:47px;padding:0 16px;border-bottom:2px solid transparent;color:var(--oo-muted);font-size:10px;font-weight:850;white-space:nowrap}.oo-anchor__scroll a:hover,.oo-anchor__scroll a.is-active{color:var(--oo-blue);border-color:var(--oo-gold)}
.oo-section{padding:86px 0;background:#fff}.oo-section.paper{background:var(--oo-paper)}.oo-section.dark{color:#fff;background:var(--oo-deep)}.oo-heading{margin-bottom:34px}.oo-heading.split,.oo-heading.dark-heading{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(320px,.8fr);align-items:end;gap:64px}.oo-heading h2{margin:0;font-size:clamp(31px,3.35vw,48px);font-weight:950;letter-spacing:-.052em;line-height:1.08;white-space:nowrap}.oo-heading>p{margin:0;color:var(--oo-muted);font-size:12px;line-height:1.85}.dark-heading h2{color:#fff}.dark-heading>p{color:rgba(255,255,255,.54)}.dark .oo-kicker{color:var(--oo-gold2)}
.persona-line{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--oo-line);border-bottom:1px solid var(--oo-line)}.persona-line article{padding:24px 18px;border-right:1px solid var(--oo-line)}.persona-line article:last-child{border-right:0}.persona-line span,.scenario-line span{color:var(--oo-gold);font-size:8px;font-weight:900}.persona-line h3,.scenario-line h3{margin:10px 0 0;font-size:15px;white-space:nowrap}.persona-line p,.scenario-line p{margin:7px 0 0;color:var(--oo-muted);font-size:9px;line-height:1.65}.problem-band{display:flex;align-items:center;flex-wrap:wrap;gap:0;margin-top:28px;border:1px solid var(--oo-line)}.problem-band strong,.problem-band span{padding:12px 15px;border-right:1px solid var(--oo-line);font-size:9px}.problem-band strong{color:#fff;background:var(--oo-blue)}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);margin:0;padding:0;border-top:1px solid rgba(255,255,255,.16);border-left:1px solid rgba(255,255,255,.16);list-style:none}.flow-grid li{padding:22px;border-right:1px solid rgba(255,255,255,.16);border-bottom:1px solid rgba(255,255,255,.16)}.flow-grid span{color:var(--oo-gold2);font-size:9px;font-weight:900}.flow-grid h3{margin:10px 0 0;color:#fff;font-size:15px;white-space:nowrap}.flow-grid p{margin:6px 0 0;color:rgba(255,255,255,.48);font-size:9px}.story{display:grid;grid-template-columns:minmax(0,1.22fr) minmax(330px,.78fr);align-items:center;gap:46px}.story.reverse{grid-template-columns:minmax(330px,.78fr) minmax(0,1.22fr)}.story.reverse .oo-scene{order:2}.oo-scene{margin:0;overflow:hidden;border-radius:8px;background:#fff;box-shadow:var(--oo-shadow)}.oo-scene img{width:100%;height:auto}.oo-scene figcaption{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px 18px;color:#fff;background:var(--oo-navy)}.oo-scene figcaption strong{font-size:12px;white-space:nowrap}.oo-scene figcaption span{color:rgba(255,255,255,.52);font-size:8px;text-align:right}.ledger{border-top:1px solid var(--oo-line)}.ledger article{display:grid;grid-template-columns:32px 1fr;gap:12px;padding:17px 0;border-bottom:1px solid var(--oo-line)}.ledger article>span{grid-row:1/3;color:var(--oo-gold);font-size:8px;font-weight:900}.ledger h3{margin:0;font-size:15px;white-space:nowrap}.ledger p{margin:6px 0 0;color:var(--oo-muted);font-size:10px;line-height:1.65}.feature-strip{display:grid;grid-template-columns:repeat(4,1fr);margin-top:28px;border-top:1px solid rgba(255,255,255,.16);border-bottom:1px solid rgba(255,255,255,.16)}.feature-strip.light{border-color:var(--oo-line)}.feature-strip article{padding:20px;border-right:1px solid rgba(255,255,255,.16)}.feature-strip.light article{border-color:var(--oo-line)}.feature-strip article:last-child{border-right:0}.feature-strip strong,.feature-strip span{display:block}.feature-strip strong{font-size:13px}.feature-strip span{margin-top:6px;color:rgba(255,255,255,.48);font-size:9px;line-height:1.55}.feature-strip.light span{color:var(--oo-muted)}.scenario-line{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--oo-line);border-left:1px solid var(--oo-line)}.scenario-line article{padding:24px;border-right:1px solid var(--oo-line);border-bottom:1px solid var(--oo-line)}
.oo-contact{padding:70px 0;color:#fff;background:var(--oo-navy)}.oo-contact__inner{display:flex;align-items:center;justify-content:space-between;gap:40px}.oo-contact h2{margin:0;font-size:clamp(28px,2.9vw,41px);white-space:nowrap}.oo-contact p:not(.oo-kicker){margin:12px 0 0;color:rgba(255,255,255,.55);font-size:11px}.oo-contact__inner>div:last-child{display:flex;gap:10px}.oo-footer{color:#fff;background:#030d1a}.oo-footer .shell{display:flex;align-items:center;justify-content:space-between;min-height:82px;gap:20px}.oo-footer strong{font-size:11px}.oo-footer span{color:rgba(255,255,255,.4);font-size:8px}.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}.reveal.visible{opacity:1;transform:none}
@media(max-width:1040px){.oo-hero{display:flex;min-height:0;flex-direction:column}.oo-hero__inner{order:1;min-height:0}.oo-hero__copy{padding:52px 0 38px}.oo-hero__media{position:relative;order:2;aspect-ratio:16/9}.oo-hero__media:after{background:linear-gradient(180deg,var(--oo-navy),rgba(9,31,59,.03) 38%)}.oo-hero__media img{object-position:72% center}.oo-heading.split,.oo-heading.dark-heading{gap:30px}.persona-line{grid-template-columns:repeat(3,1fr)}.story,.story.reverse{grid-template-columns:1fr;gap:28px}.story.reverse .oo-scene{order:0}.flow-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.office-oa-page .shell{width:calc(100% - 28px)}.oo-section{padding:66px 0}.oo-heading.split,.oo-heading.dark-heading{display:block}.oo-heading>p{margin-top:15px}.persona-line{grid-template-columns:repeat(2,1fr)}.feature-strip,.scenario-line{grid-template-columns:repeat(2,1fr)}.oo-contact__inner{display:block}.oo-contact__inner>div:last-child{margin-top:24px}.oo-footer .shell{align-items:flex-start;flex-direction:column;padding:24px 0}.oo-scene figcaption{align-items:flex-start;flex-direction:column}.oo-scene figcaption span{text-align:left}}
@media(max-width:520px){.oo-hero h1{font-size:clamp(28px,8vw,39px)}.oo-hero__claim{font-size:clamp(18px,5.2vw,24px)}.oo-actions{display:grid;grid-template-columns:1fr 1fr}.oo-proof li{padding:13px 5px;text-align:center}.oo-proof li:first-child{padding-left:5px}.oo-anchor__scroll{justify-content:flex-start}.oo-heading h2{font-size:clamp(22px,6.2vw,30px)}.persona-line,.feature-strip,.scenario-line{grid-template-columns:1fr}.flow-grid{grid-template-columns:1fr 1fr}.oo-contact h2{font-size:clamp(21px,5.8vw,29px)}.oo-contact__inner>div:last-child{display:grid;grid-template-columns:1fr 1fr}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}}

/* Keep the shell product navigation as the only desktop section bar. */
.oo-anchor{display:none}
body.xb-shell-embedded .oo-anchor{display:block;top:0}
@media(max-width:1260px){body.xb-shell-ready:not(.xb-shell-embedded) .oo-anchor{display:block}.oo-anchor__scroll{justify-content:flex-start}}

/* Readable controls and crop-safe responsive media. */
.oo-kicker,.oo-overline{font-size:11px;line-height:1.45}
.oo-button{font-size:13px}
.oo-anchor__scroll a{font-size:12px}
.oo-contact p:not(.oo-kicker){font-size:14px;line-height:1.75}
.office-oa-page :where(a,button):focus-visible{outline:3px solid var(--oo-gold2);outline-offset:3px}
@media(max-width:1040px){.oo-hero__media img{object-fit:contain;object-position:center}}
@media(max-width:520px){.oo-actions,.oo-contact__inner>div:last-child{grid-template-columns:1fr}.oo-proof{grid-template-columns:1fr}.oo-proof li,.oo-proof li:first-child{padding:12px 0;border-right:0;border-bottom:1px solid rgba(255,255,255,.14);text-align:left}.oo-proof li:last-child{border-bottom:0}}

/* Ultra-wide face-safe hero: preserve both standing and seated collaborators. */
@media(min-width:1041px){.oo-hero,.oo-hero__inner{min-height:clamp(700px,27vw,920px)}.oo-hero__media img{object-position:center 15%}}