:root {
    --canvas: #f0eee6;
    --surface: #faf9f5;
    --ink: #171715;
    --ink-soft: #625f58;
    --ink-faint: #8d8980;
    --line: #d7d3c8;
    --clay: #d97757;
    --clay-deep: #bd5d3d;
    --sky: #6a9bcc;
    --olive: #788c5d;
    --night: #1b1a18;
    --serif: "Songti SC", "STSong", "Noto Serif SC", Georgia, serif;
    --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--canvas);
    color: var(--ink);
    font-family: var(--sans);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }

.landing-nav {
    position: fixed;
    z-index: 50;
    inset: 0 0 auto;
    height: 74px;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: 0 34px;
    border-bottom: 1px solid transparent;
    transition: background .35s ease, border-color .35s ease, backdrop-filter .35s ease;
}
.landing-nav.scrolled {
    background: rgba(240, 238, 230, .84);
    border-color: rgba(204, 200, 190, .8);
    backdrop-filter: blur(16px);
}
.nav-brand { display: inline-flex; align-items: center; gap: 11px; width: max-content; font-family: var(--serif); font-size: 17px; font-weight: 700; }
.brand-mark { position: relative; width: 27px; height: 27px; display: inline-flex; align-items: flex-end; justify-content: center; gap: 2px; }
.brand-mark::after { content: ""; position: absolute; left: 2px; right: 2px; bottom: 2px; height: 8px; border: 2px solid currentColor; border-radius: 3px 3px 8px 8px; }
.brand-mark span { position: relative; z-index: 1; width: 3px; height: 10px; margin-bottom: 12px; border-radius: 100%; background: var(--clay); transform: rotate(-16deg); animation: steam 2.8s ease-in-out infinite; }
.brand-mark span:nth-child(2) { height: 14px; animation-delay: -.8s; transform: rotate(8deg); }
.brand-mark span:nth-child(3) { animation-delay: -1.6s; transform: rotate(18deg); }
@keyframes steam { 0%,100% { transform: translateY(2px) scaleY(.75) rotate(-8deg); opacity: .45; } 50% { transform: translateY(-2px) scaleY(1.08) rotate(8deg); opacity: 1; } }
.nav-links { display: flex; align-items: center; gap: 30px; font-size: 13px; color: var(--ink-soft); }
.nav-links a { position: relative; padding: 8px 0; }
.nav-links a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 3px; height: 1px; background: var(--ink); transition: right .25s ease; }
.nav-links a:hover::after { right: 0; }
.nav-login { justify-self: end; display: inline-flex; align-items: center; gap: 9px; padding: 10px 17px; border: 1px solid var(--ink); border-radius: 999px; font-size: 13px; transition: background .25s ease, color .25s ease, transform .25s ease; }
.nav-login:hover { background: var(--ink); color: var(--surface); transform: translateY(-1px); }

.hero-track { position: relative; height: 320vh; }
.hero-sticky { position: sticky; top: 0; height: 100vh; min-height: 650px; display: flex; align-items: center; justify-content: center; overflow: hidden; padding: 82px 0 38px; }
#knowledge-globe { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; opacity: calc(1 - var(--hero-progress, 0) * .8); transition: opacity .05s linear; }
.hero-copy { position: relative; z-index: 2; width: min(820px, calc(100% - 40px)); text-align: center; transform: translateY(calc(var(--hero-progress, 0) * -70px)) scale(calc(1 - var(--hero-progress, 0) * .06)); opacity: calc(1 - var(--hero-progress, 0) * 1.9); will-change: transform, opacity; }
.eyebrow, .section-kicker { margin: 0 0 18px; font-size: 11px; font-weight: 700; letter-spacing: .26em; color: var(--ink-faint); }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; }
.eyebrow span { width: 27px; height: 3px; background: var(--clay); border-radius: 10px; }
.hero-copy h1 { margin: 0; font-family: var(--serif); font-size: clamp(48px, 6.4vw, 86px); font-weight: 600; line-height: 1.08; letter-spacing: -.045em; }
.hero-copy h1 em { color: var(--clay-deep); font-style: normal; }
.hero-intro { margin: 28px auto 0; color: var(--ink-soft); font-size: clamp(14px, 1.4vw, 17px); line-height: 1.9; }
.hero-actions { display: flex; align-items: center; justify-content: center; gap: 28px; margin-top: 34px; }
.primary-action { display: inline-flex; align-items: center; gap: 18px; padding: 14px 22px; border-radius: 999px; background: var(--ink); color: var(--surface); font-size: 14px; transition: background .3s ease, transform .3s ease; }
.primary-action:hover { background: var(--clay-deep); transform: translateY(-2px); }
.primary-action i { font-size: 17px; }
.text-action { display: inline-flex; align-items: center; gap: 8px; color: var(--ink-soft); font-size: 13px; }
.text-action i { transition: transform .25s ease; }
.text-action:hover i { transform: translateX(3px); }

.capability-row {
    --spread: 0;
    position: absolute;
    z-index: 5;
    left: 50%;
    top: 50%;
    display: flex;
    width: min(calc(760px + var(--spread) * 1800px), calc(68vw + var(--spread) * 32vw));
    gap: calc(18px * (1 - var(--join, 0)));
    transform: translate(-50%, calc(72px - var(--spread) * 25px));
    opacity: clamp(0, calc((var(--hero-progress, 0) - .08) * 7), 1);
    pointer-events: none;
}
.capability-row.is-interactive { pointer-events: auto; }
.capability-card { --accent: var(--clay); position: relative; flex: 1 1 0; min-width: 0; min-height: calc(210px + var(--spread) * 105px); padding: 28px 28px 24px; display: flex; flex-direction: column; background: rgba(250,249,245,.96); border: 1px solid var(--line); border-radius: calc(22px * (1 - var(--join, 0))); box-shadow: 0 1px 2px rgba(23,23,21,.04); overflow: hidden; transition: border-color .25s ease, background .25s ease, transform .3s ease; }
.capability-card:hover { z-index: 2; border-color: var(--accent); background: #fffefb; transform: translateY(-5px); }
.accent-sky { --accent: var(--sky); }
.accent-olive { --accent: var(--olive); }
.card-top { display: flex; justify-content: space-between; align-items: center; color: var(--accent); }
.card-top i { font-size: 20px; }
.card-no { font-family: ui-monospace, monospace; font-size: 11px; letter-spacing: .15em; }
.capability-card h2 { margin: 29px 0 8px; font-family: var(--serif); font-size: clamp(20px, 2vw, 28px); }
.card-short, .card-detail p { color: var(--ink-soft); font-size: 13px; line-height: 1.75; }
.card-short { margin: 0; }
.card-detail { max-height: calc(var(--spread) * 150px); opacity: var(--spread); overflow: hidden; transform: translateY(calc((1 - var(--spread)) * 12px)); }
.card-detail p { margin: 15px 0 0; }
.card-tag { margin-top: auto; padding-top: 22px; color: var(--accent); font: 10px ui-monospace, monospace; letter-spacing: .2em; }
.scroll-cue { position: absolute; left: 50%; bottom: 22px; z-index: 3; display: flex; align-items: center; gap: 9px; transform: translateX(-50%); color: var(--ink-faint); font-size: 11px; letter-spacing: .12em; opacity: calc(1 - var(--hero-progress, 0) * 8); }
.scroll-cue i { animation: cue 1.8s ease-in-out infinite; }
@keyframes cue { 50% { transform: translateY(5px); } }

.statement-section { position: relative; z-index: 10; background: var(--night); color: #f4f0e7; padding: 130px max(28px, calc((100vw - 1180px)/2)) 150px; }
.statement-grid { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 80px; padding-bottom: 105px; }
.statement-grid h2, .industry-heading h2, .final-cta h2 { margin: 0; font-family: var(--serif); font-weight: 500; }
.statement-grid h2 { max-width: 850px; font-size: clamp(34px, 4.4vw, 58px); line-height: 1.25; letter-spacing: -.03em; }
.statement-grid > div > p { max-width: 690px; margin: 32px 0 0 auto; color: #aaa69e; font-size: 16px; line-height: 2; }
.section-kicker.light, .statement-section .section-kicker { color: #88857e; }
.metric-band { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid #383632; border-bottom: 1px solid #383632; }
.metric-band > div { padding: 40px 25px; border-right: 1px solid #383632; }
.metric-band > div:last-child { border-right: 0; }
.metric-band strong { display: block; color: #f4f0e7; font-family: var(--serif); font-size: clamp(30px, 3.7vw, 48px); font-weight: 400; }
.metric-band span { display: block; margin-top: 9px; color: #8e8a82; font-size: 12px; }
.industry-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 100px; padding-top: 130px; }
.industry-heading { position: sticky; top: 120px; align-self: start; }
.industry-heading h2 { font-size: clamp(32px, 4vw, 52px); line-height: 1.25; }
.industry-heading > p:last-child { max-width: 390px; margin-top: 25px; color: #918d85; line-height: 1.9; font-size: 14px; }
.industry-list { border-top: 1px solid #3d3a35; }
.industry-item { display: grid; grid-template-columns: 48px 1fr auto; align-items: center; gap: 16px; min-height: 94px; border-bottom: 1px solid #3d3a35; transition: padding .3s ease, color .3s ease; }
.industry-item:hover { padding-left: 16px; color: #dda080; }
.industry-item span { color: #77736c; font: 10px ui-monospace, monospace; }
.industry-item strong { font-family: var(--serif); font-size: clamp(19px, 2vw, 25px); font-weight: 500; }
.industry-item i { font-size: 21px; color: #77736c; }

.workflow-section { padding: 130px max(28px, calc((100vw - 1180px)/2)) 150px; background: var(--surface); }
.workflow-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; padding-bottom: 48px; border-bottom: 1px solid var(--line); }
.workflow-head .section-kicker { margin: 0; }
.workflow-head h2 { width: min(690px, 70%); margin: 0; font-family: var(--serif); font-size: clamp(32px, 4.2vw, 52px); font-weight: 500; line-height: 1.25; }
.workflow-line { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; padding-top: 66px; }
.workflow-line::before { content: ""; position: absolute; left: 10%; right: 10%; top: 103px; height: 1px; background: var(--line); }
.workflow-line article { position: relative; padding: 0 26px; text-align: center; }
.workflow-line article > span { position: absolute; top: -28px; left: 26px; color: var(--ink-faint); font: 10px ui-monospace, monospace; }
.workflow-icon { position: relative; z-index: 1; width: 74px; height: 74px; display: grid; place-items: center; margin: 0 auto 24px; border: 1px solid var(--line); border-radius: 50%; background: var(--surface); color: var(--clay-deep); font-size: 23px; transition: background .3s ease, color .3s ease, transform .3s ease; }
.workflow-line article:hover .workflow-icon { background: var(--ink); color: var(--surface); transform: translateY(-5px); }
.workflow-line h3 { margin: 0 0 10px; font-family: var(--serif); font-size: 20px; }
.workflow-line p { margin: 0; color: var(--ink-soft); font-size: 13px; line-height: 1.8; }

.final-cta { position: relative; min-height: 640px; display: grid; place-items: center; overflow: hidden; background: var(--clay); color: #fffaf3; text-align: center; }
.cta-content { position: relative; z-index: 2; padding: 60px 24px; }
.final-cta .section-kicker { color: rgba(255,250,243,.62); }
.final-cta h2 { font-size: clamp(43px, 6vw, 78px); line-height: 1.15; letter-spacing: -.035em; }
.final-cta a { display: inline-flex; align-items: center; gap: 18px; margin-top: 38px; padding: 15px 24px; background: var(--night); border-radius: 999px; font-size: 14px; transition: transform .25s ease, background .25s ease; }
.final-cta a:hover { transform: translateY(-3px); background: #000; }
.cta-orbit { position: absolute; border: 1px solid rgba(255,255,255,.25); border-radius: 50%; animation: orbit 18s linear infinite; }
.orbit-one { width: 720px; height: 720px; }
.orbit-two { width: 960px; height: 400px; transform: rotate(26deg); animation-direction: reverse; animation-duration: 24s; }
.cta-orbit::before { content: ""; position: absolute; top: 12%; left: 12%; width: 8px; height: 8px; background: #fffaf3; border-radius: 50%; box-shadow: 0 0 0 9px rgba(255,255,255,.08); }
@keyframes orbit { to { transform: rotate(360deg); } }

.landing-footer { min-height: 110px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 30px; padding: 24px 34px; background: var(--night); color: #e7e1d7; border-top: 1px solid #383632; }
.landing-footer p { margin: 0; color: #8f8b83; font-family: var(--serif); letter-spacing: .12em; font-size: 13px; }
.landing-footer > span { justify-self: end; color: #74716b; font-size: 11px; }

.reveal { opacity: 0; transform: translateY(34px); transition: opacity .9s cubic-bezier(.22,1,.36,1), transform .9s cubic-bezier(.22,1,.36,1); }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 900px) {
    .landing-nav { grid-template-columns: 1fr auto; padding: 0 20px; }
    .nav-links { display: none; }
    .hero-track { height: auto; }
    .hero-sticky { position: relative; min-height: 0; height: auto; flex-direction: column; padding: 150px 20px 70px; }
    #knowledge-globe { height: 680px; }
    .hero-copy { transform: none !important; opacity: 1 !important; }
    .capability-row { position: relative; left: auto; top: auto; width: min(560px, 100%) !important; flex-direction: column; gap: 14px; margin-top: 80px; transform: none; opacity: 1; }
    .capability-row { pointer-events: auto; }
    .capability-card { min-height: 0; border-radius: 18px; }
    .card-detail { max-height: none; opacity: 1; transform: none; }
    .scroll-cue { display: none; }
    .statement-grid, .industry-layout { grid-template-columns: 1fr; gap: 45px; }
    .statement-grid > div > p { margin-left: 0; }
    .metric-band { grid-template-columns: repeat(2, 1fr); }
    .metric-band > div:nth-child(2) { border-right: 0; }
    .metric-band > div:nth-child(-n+2) { border-bottom: 1px solid #383632; }
    .industry-heading { position: static; }
    .workflow-head { display: block; }
    .workflow-head h2 { width: 100%; margin-top: 18px; }
    .workflow-line { grid-template-columns: repeat(2, 1fr); gap: 55px 0; }
    .workflow-line::before { display: none; }
    .landing-footer { grid-template-columns: 1fr; text-align: center; justify-items: center; }
    .landing-footer > span { justify-self: center; }
}

@media (max-width: 560px) {
    .landing-nav { height: 64px; }
    .nav-login { padding: 9px 13px; }
    .hero-sticky { padding-top: 125px; }
    .hero-copy h1 { font-size: 43px; }
    .hero-intro br { display: none; }
    .hero-actions { flex-direction: column; gap: 18px; }
    .statement-section, .workflow-section { padding-left: 20px; padding-right: 20px; }
    .metric-band { grid-template-columns: 1fr; }
    .metric-band > div { border-right: 0; border-bottom: 1px solid #383632; }
    .metric-band > div:last-child { border-bottom: 0; }
    .workflow-line { grid-template-columns: 1fr; }
    .workflow-line article { padding: 0 18px; }
    .final-cta { min-height: 540px; }
}

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