@font-face {
  font-family: "CrossReaction";
  src: url("/assets/fonts/CrossReaction-Regular.ttf") format("truetype");
  font-display: swap;
  font-weight: 400;
  font-style: normal;
}

:root {
  --navy: #09233d;
  --navy-deep: #061a2e;
  --ink: #122a40;
  --muted: #5e7184;
  --blue: #238ddb;
  --blue-bright: #48a9ea;
  --blue-soft: #e9f5ff;
  --paper: #f7fafc;
  --cream: #f2f5f5;
  --white: #ffffff;
  --line: rgba(18, 42, 64, 0.14);
  --line-light: rgba(255, 255, 255, 0.2);
  --container: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; font-size: 16px; line-height: 1.65; text-rendering: optimizeLegibility; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid #f2c94c; outline-offset: 4px; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 100; padding: 10px 14px; color: var(--navy); background: var(--white); border: 2px solid var(--blue); transform: translateY(-150%); transition: transform .2s ease; }
.skip-link:focus { transform: translateY(0); }
.container { width: min(calc(100% - 64px), var(--container)); margin: 0 auto; }
.section { padding: 132px 0; position: relative; overflow: hidden; }
.section[id] { scroll-margin-top: 76px; }
.section-dark { color: var(--white); background: var(--navy); }
.section-blue { color: var(--white); background: var(--blue); }
.section-light { color: var(--ink); background: var(--paper); }
.section-cream { color: var(--ink); background: var(--cream); }

.site-header { position: fixed; inset: 0 0 auto; z-index: 20; color: var(--white); background: rgba(9, 35, 61, 0.96); border-bottom: 1px solid transparent; transition: background .25s ease, border-color .25s ease, box-shadow .25s ease; }
.site-header.is-scrolled { background: rgba(247, 250, 252, .96); color: var(--ink); border-color: var(--line); box-shadow: 0 6px 24px rgba(9, 35, 61, .06); }
.nav-wrap { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.brand-lockup { display: inline-flex; align-items: center; gap: 10px; min-width: max-content; }
.brand-marks { position: relative; flex: 0 0 38px; width: 38px; height: 38px; }
.brand-mark { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; transition: opacity .25s ease; }
.brand-mark-color { opacity: 0; }
.site-header.is-scrolled .brand-mark-white { opacity: 0; }
.site-header.is-scrolled .brand-mark-color { opacity: 1; }
.brand-title { font-family: "CrossReaction", "PingFang SC", "Microsoft YaHei", sans-serif; font-weight: 400; }
.site-nav { display: flex; align-items: center; gap: 28px; font-size: 14px; }
.site-nav a { opacity: .78; transition: opacity .2s ease, color .2s ease; }
.site-nav a:hover, .site-nav a:focus-visible { opacity: 1; color: var(--blue-bright); }
.site-nav .nav-cta { padding: 9px 0 9px 28px; opacity: 1; border-left: 1px solid currentColor; }
.nav-cta span, .button span, .scenario-prompt a span { display: inline-block; margin-left: 7px; transition: transform .2s ease; }
.nav-cta:hover span, .button:hover span, .scenario-prompt a:hover span { transform: translate(2px, -2px); }
.menu-toggle { display: none; color: inherit; background: none; border: 0; padding: 8px 0 8px 8px; cursor: pointer; }
.menu-toggle span { display: block; width: 25px; height: 1px; margin: 5px 0; background: currentColor; transition: transform .2s ease; }

.hero { min-height: 780px; display: flex; align-items: center; padding: 150px 0 92px; background: var(--navy); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.04fr) minmax(420px, .96fr); gap: clamp(48px, 8vw, 120px); align-items: center; }
.eyebrow { margin: 0 0 25px; color: rgba(255, 255, 255, .68); font-size: 11px; font-weight: 700; letter-spacing: .18em; line-height: 1.4; }
.eyebrow-blue { color: var(--blue); }
.hero h1 { margin: 0; font-size: clamp(58px, 7.2vw, 94px); font-weight: 400; line-height: 1.08; letter-spacing: 0; }
.brand-title { display: block; }
.hero-title-sub { display: block; margin-top: 9px; color: var(--blue-bright); font-size: clamp(25px, 3.1vw, 42px); font-weight: 500; letter-spacing: .015em; line-height: 1.1; }
.hero-kicker { max-width: 600px; margin: 35px 0 19px; color: var(--white); font-size: clamp(22px, 2.4vw, 32px); line-height: 1.35; }
.hero-description { max-width: 610px; margin: 0; color: rgba(255, 255, 255, .72); font-size: 16px; line-height: 1.9; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 38px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 10px 19px; border: 1px solid transparent; font-size: 14px; line-height: 1; transition: color .2s ease, background .2s ease, border-color .2s ease, transform .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--navy); background: var(--white); }
.button-primary:hover { background: var(--blue-soft); }
.button-ghost { color: var(--white); border-color: rgba(255, 255, 255, .36); }
.button-ghost:hover { border-color: var(--white); background: rgba(255, 255, 255, .08); }
.button-light { color: var(--blue); background: var(--white); }
.button-light:hover { background: var(--blue-soft); }
.hero-meta { display: flex; flex-wrap: wrap; gap: 0; margin-top: 55px; color: rgba(255, 255, 255, .5); font-size: 12px; }
.hero-meta span { padding-right: 18px; margin-right: 18px; border-right: 1px solid var(--line-light); }
.hero-meta span:last-child { padding-right: 0; margin-right: 0; border: 0; }
.hero-visual { position: relative; }
.hero-frame { min-height: 470px; display: flex; flex-direction: column; padding: 27px 30px 28px; background: #123858; border: 1px solid rgba(255, 255, 255, .2); }
.frame-topline { display: flex; justify-content: space-between; color: rgba(255, 255, 255, .55); font-size: 10px; letter-spacing: .14em; }
.research-question { position: relative; min-height: 115px; padding: 19px 116px 18px 20px; margin-top: 34px; overflow: hidden; background: rgba(6, 26, 46, .28); border-left: 2px solid var(--blue-bright); }
.research-question > span { color: var(--blue-bright); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 9px; letter-spacing: .13em; }
.research-question p { position: relative; z-index: 1; margin: 11px 0 0; color: var(--white); font-size: 20px; font-weight: 500; line-height: 1.45; }
.research-question .frame-mark { position: absolute; top: 50%; right: 14px; width: 94px; height: 94px; margin: 0; object-fit: contain; opacity: .13; transform: translateY(-50%); }
.analysis-path { margin-top: 25px; border-top: 1px solid rgba(255, 255, 255, .2); }
.analysis-stage { display: grid; grid-template-columns: 32px minmax(0, 1fr) auto; gap: 12px; align-items: center; min-height: 67px; border-bottom: 1px solid rgba(255, 255, 255, .14); }
.analysis-stage > span { color: var(--blue-bright); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; }
.analysis-stage strong { display: block; color: var(--white); font-size: 14px; font-weight: 500; line-height: 1.35; }
.analysis-stage small { display: block; margin-top: 2px; color: rgba(255, 255, 255, .52); font-size: 11px; line-height: 1.4; }
.analysis-stage em { color: rgba(255, 255, 255, .55); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 8px; font-style: normal; letter-spacing: .11em; }
.frame-caption { display: flex; justify-content: space-between; gap: 20px; margin-top: auto; padding-top: 20px; color: rgba(255, 255, 255, .5); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 9px; letter-spacing: .08em; }
.frame-caption strong { color: rgba(255, 255, 255, .75); font-weight: 500; }
.scroll-cue { position: absolute; bottom: 29px; left: 50%; display: inline-flex; align-items: center; gap: 12px; color: rgba(255, 255, 255, .52); font-size: 11px; letter-spacing: .13em; transform: translateX(-50%); }
.scroll-cue span { display: block; width: 1px; height: 28px; background: var(--blue-bright); }

.section-heading { max-width: 710px; }
.section-heading h2, .trust h2, .contact h2 { margin: 0; font-size: clamp(35px, 4.2vw, 58px); font-weight: 400; line-height: 1.2; letter-spacing: 0; }
.section-heading > p:last-child { margin: 26px 0 0; color: var(--muted); font-size: 17px; line-height: 1.85; }
.section-heading-light > p:last-child { color: rgba(255, 255, 255, .72); }
.problem { padding-bottom: 145px; }
.problem-layout { display: grid; grid-template-columns: 170px minmax(0, 1fr); gap: 72px; margin-top: 90px; }
.problem-index { color: var(--blue); font-size: 15px; font-weight: 700; letter-spacing: .08em; }
.problem-index span { padding: 0 7px; color: #99aec0; font-weight: 400; }
.problem-list { border-top: 1px solid var(--line); }
.problem-item { display: grid; grid-template-columns: 70px 1fr; gap: 18px; padding: 27px 0 28px; border-bottom: 1px solid var(--line); }
.item-number { color: var(--blue); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
.problem-item h3 { margin: 0 0 8px; font-size: 22px; font-weight: 500; line-height: 1.35; }
.problem-item p { max-width: 590px; margin: 0; color: var(--muted); font-size: 15px; }

.platform { padding-bottom: 144px; }
.capability-grid { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 82px; border-top: 1px solid rgba(255, 255, 255, .32); border-left: 1px solid rgba(255, 255, 255, .22); }
.capability { min-height: 292px; padding: 26px 25px 30px; border-right: 1px solid rgba(255, 255, 255, .22); border-bottom: 1px solid rgba(255, 255, 255, .22); transition: background .25s ease; }
.capability:hover { background: rgba(255, 255, 255, .08); }
.capability-top { display: flex; align-items: center; justify-content: space-between; color: rgba(255, 255, 255, .62); }
.capability-code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; letter-spacing: .12em; }
.capability-symbol { color: var(--white); font-size: 24px; line-height: 1; }
.capability h3 { margin: 75px 0 13px; font-size: 22px; font-weight: 500; line-height: 1.35; }
.capability p { margin: 0; color: rgba(255, 255, 255, .71); font-size: 14px; line-height: 1.8; }

.workflow-head { display: flex; align-items: end; justify-content: space-between; gap: 50px; }
.workflow-note { max-width: 350px; margin: 0 0 4px; color: var(--muted); font-size: 15px; }
.workflow-rail { display: grid; grid-template-columns: 1fr 52px 1fr 52px 1fr 52px 1fr 52px 1fr; align-items: center; margin-top: 78px; }
.workflow-step { min-height: 140px; padding: 20px 0; border-top: 2px solid var(--blue); }
.workflow-step span { display: block; margin-bottom: 24px; color: var(--blue); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
.workflow-step strong { display: block; font-size: 20px; font-weight: 500; line-height: 1.35; }
.workflow-step small { display: block; margin-top: 7px; color: var(--muted); font-size: 12px; }
.workflow-step-final { border-color: var(--navy); }
.workflow-step-final span { color: var(--navy); }
.workflow-connector { height: 1px; background: var(--line); }
.trace-panel { display: grid; grid-template-columns: 180px 1fr 330px; align-items: center; gap: 30px; padding: 22px 26px; margin-top: 48px; background: var(--white); border: 1px solid var(--line); }
.trace-label { color: var(--blue); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; letter-spacing: .08em; }
.trace-lines { display: flex; flex-direction: column; gap: 6px; }
.trace-lines span { display: block; height: 3px; background: #d4e7f4; }.trace-lines span:nth-child(1) { width: 72%; background: var(--blue); }.trace-lines span:nth-child(2) { width: 50%; }.trace-lines span:nth-child(3) { width: 62%; }
.trace-panel p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.7; }

.scenarios { padding-bottom: 145px; }
.scenario-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 80px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.scenario { min-height: 250px; padding: 25px 26px 30px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: background .25s ease, transform .25s ease; }
.scenario:hover { background: var(--blue-soft); }
.scenario-number { display: block; color: var(--blue); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
.scenario h3 { max-width: 220px; margin: 56px 0 12px; font-size: 20px; font-weight: 500; line-height: 1.4; }
.scenario p { max-width: 310px; margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.scenario-feature { position: relative; grid-row: span 2; min-height: 500px; color: var(--white); background: var(--navy); }
.scenario-feature:hover { background: #123858; }
.scenario-feature h3 { max-width: 320px; margin-top: 160px; font-size: 31px; }.scenario-feature p { color: rgba(255, 255, 255, .7); }.scenario-line { position: absolute; right: 27px; bottom: 32px; left: 27px; height: 1px; background: var(--blue-bright); }
.scenario-prompt { display: flex; flex-direction: column; justify-content: space-between; background: var(--blue-soft); }.prompt-mark { color: var(--blue); font-size: 45px; line-height: 1; }.scenario-prompt p { max-width: 200px; color: var(--ink); font-size: 17px; }.scenario-prompt a { color: var(--blue); font-size: 14px; }

.trust { padding: 132px 0; }
.trust-grid { display: grid; grid-template-columns: minmax(0, .85fr) minmax(400px, 1.15fr); gap: 120px; align-items: start; }
.trust-copy h2 { max-width: 530px; }.trust-copy > p:last-child { max-width: 470px; margin: 28px 0 0; color: rgba(255, 255, 255, .7); font-size: 16px; line-height: 1.9; }
.trust-list { border-top: 1px solid var(--line-light); }.trust-list > div { display: grid; grid-template-columns: 50px 1fr; gap: 12px; padding: 20px 0; border-bottom: 1px solid var(--line-light); }.trust-list span { color: var(--blue-bright); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; }.trust-list strong { font-size: 19px; font-weight: 500; }.trust-list p { grid-column: 2; margin: -7px 0 0; color: rgba(255, 255, 255, .58); font-size: 13px; }

.team { padding-bottom: 140px; }.team-intro { display: grid; grid-template-columns: 1fr 1fr; column-gap: 80px; }.team-intro .eyebrow { grid-column: 1 / -1; }.team-intro h2 { margin: 0; font-size: clamp(35px, 4.2vw, 55px); font-weight: 400; line-height: 1.2; }.team-intro > p:last-child { max-width: 390px; margin: 0; align-self: end; color: var(--muted); font-size: 15px; line-height: 1.85; }.team-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 75px; }.member { display: grid; grid-template-columns: 100px 1fr; gap: 20px; align-items: end; padding-top: 18px; border-top: 1px solid var(--line); }.member img { width: 100px; height: 100px; object-fit: cover; filter: saturate(.8); }.member span { color: var(--blue); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; letter-spacing: .08em; }.member h3 { margin: 10px 0 2px; font-size: 20px; font-weight: 500; }.member p { margin: 0; color: var(--muted); font-size: 13px; }

.contact { padding: 90px 0; }.contact-inner { display: flex; align-items: end; justify-content: space-between; gap: 50px; }.contact h2 { max-width: 730px; }.contact .button { flex: 0 0 auto; min-width: 250px; }
.site-footer { padding: 58px 0 32px; }.footer-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 40px; align-items: start; }.footer-brand { display: flex; flex-direction: column; gap: 4px; font-size: 15px; }.footer-brand .brand-title { font-size: 23px; }.footer-grid p { margin: 13px 0 0; color: rgba(255, 255, 255, .45); font-size: 12px; }.footer-links { display: flex; flex-wrap: wrap; gap: 9px 22px; color: rgba(255, 255, 255, .62); font-size: 12px; }.footer-links a:hover { color: var(--white); }.footer-meta { display: flex; flex-direction: column; align-items: end; gap: 5px; color: rgba(255, 255, 255, .42); font-size: 11px; }

.reveal { opacity: 1; transform: none; }.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }.js .hero .reveal, .js .reveal.is-visible { opacity: 1; transform: translateY(0); }.reveal-delay { transition-delay: .13s; }

@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: 65px; }.hero { padding-top: 125px; }.hero-visual { max-width: 650px; }.capability-grid { grid-template-columns: repeat(2, 1fr); }.trust-grid { gap: 60px; }.workflow-rail { grid-template-columns: repeat(5, 1fr); gap: 24px; }.workflow-connector { display: none; }.workflow-step { border-top-width: 1px; }.workflow-step strong { font-size: 17px; }.workflow-step small { font-size: 11px; }.trace-panel { grid-template-columns: 150px 1fr; }.trace-panel p { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  .container { width: min(calc(100% - 40px), var(--container)); }.section { padding: 88px 0; }.site-header, .site-header.is-scrolled { color: var(--white); background: var(--navy); }.site-header.is-scrolled .brand-mark-white { opacity: 1; }.site-header.is-scrolled .brand-mark-color { opacity: 0; }.nav-wrap { min-height: 66px; }.brand-marks { flex-basis: 34px; width: 34px; height: 34px; }.menu-toggle { display: block; }.site-nav { position: absolute; top: 66px; right: 0; left: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 10px 20px 24px; color: var(--white); background: var(--navy); border-top: 1px solid var(--line-light); }.site-nav.is-open { display: flex; }.site-nav a { padding: 15px 0; border-bottom: 1px solid var(--line-light); }.site-nav .nav-cta { padding-left: 0; border-left: 0; }.hero { min-height: auto; padding: 116px 0 90px; }.hero h1 { font-size: 57px; }.hero-title-sub { font-size: 28px; }.hero-kicker { margin-top: 28px; font-size: 23px; }.hero-description { font-size: 15px; line-height: 1.8; }.hero-meta { margin-top: 38px; gap: 12px 0; }.hero-meta span { padding-right: 12px; margin-right: 12px; }.hero-frame { min-height: 455px; padding: 20px 18px; }.research-question { min-height: 108px; padding: 16px 84px 16px 16px; margin-top: 26px; }.research-question p { font-size: 17px; }.research-question .frame-mark { right: 8px; width: 72px; height: 72px; }.analysis-path { margin-top: 20px; }.analysis-stage { grid-template-columns: 27px minmax(0, 1fr) auto; gap: 8px; min-height: 62px; }.analysis-stage small { font-size: 10px; }.frame-caption { font-size: 8px; }.scroll-cue { display: none; }.section-heading h2, .trust h2, .contact h2 { font-size: 38px; }.section-heading > p:last-child { font-size: 15px; }.problem { padding-bottom: 90px; }.problem-layout { display: block; margin-top: 58px; }.problem-index { margin-bottom: 27px; }.problem-item { grid-template-columns: 42px 1fr; gap: 12px; padding: 23px 0; }.problem-item h3 { font-size: 19px; }.problem-item p { font-size: 14px; line-height: 1.75; }.capability-grid { grid-template-columns: 1fr; margin-top: 55px; }.capability { min-height: 0; padding: 22px 20px 26px; }.capability h3 { margin-top: 48px; font-size: 20px; }.workflow-head { display: block; }.workflow-note { margin-top: 25px; font-size: 14px; }.workflow-rail { grid-template-columns: 1fr; gap: 0; margin-top: 50px; }.workflow-step { min-height: 0; padding: 18px 0; border-top: 0; border-left: 2px solid var(--blue); padding-left: 20px; }.workflow-step-final { border-left-color: var(--navy); }.workflow-step span { display: inline-block; width: 42px; margin: 0 5px 0 0; }.workflow-step strong { display: inline-block; font-size: 18px; }.workflow-step small { margin: 1px 0 0 48px; }.trace-panel { display: block; padding: 20px; margin-top: 35px; }.trace-lines { margin: 19px 0; }.scenario-grid { grid-template-columns: 1fr; margin-top: 55px; }.scenario, .scenario-feature { min-height: 0; }.scenario-feature { grid-row: auto; min-height: 350px; }.scenario-feature h3 { margin-top: 100px; font-size: 27px; }.scenario-prompt { min-height: 210px; }.trust-grid { grid-template-columns: 1fr; gap: 58px; }.trust-copy > p:last-child { font-size: 15px; }.team-intro { display: block; }.team-intro > p:last-child { margin-top: 26px; }.team-grid { grid-template-columns: 1fr; gap: 34px; margin-top: 53px; }.member { grid-template-columns: 82px 1fr; }.member img { width: 82px; height: 82px; }.contact { padding: 70px 0; }.contact-inner { display: block; }.contact .button { width: 100%; min-width: 0; margin-top: 33px; }.footer-grid { grid-template-columns: 1fr; gap: 30px; }.footer-meta { align-items: start; }.site-footer { padding-top: 45px; }
}

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