:root {
  --ink: #0a2427;
  --ink-2: #15383a;
  --paper: #f4f8f7;
  --white: #ffffff;
  --mint: #a7f3d0;
  --accent: #16c79a;
  --accent-2: #62dfbd;
  --line: rgba(10, 36, 39, .15);
  --muted: #607576;
  --max: 1240px;
  --shadow: 0 22px 70px rgba(4, 30, 31, .13);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.shell { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 200; background: var(--white); padding: 12px 18px; border-radius: 4px; }
.skip-link:focus { top: 16px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(244, 248, 247, .9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.site-header.scrolled { border-color: var(--line); box-shadow: 0 8px 30px rgba(7, 42, 42, .05); }
.nav-shell { height: 82px; display: flex; align-items: center; gap: 32px; }
.wordmark { display: inline-flex; align-items: center; width: 205px; min-width: 205px; }
.wordmark img { display: block; width: 100%; height: auto; }
.main-nav { display: flex; align-items: center; gap: 28px; margin-left: auto; }
.main-nav a { font-size: .88rem; color: #385658; transition: color .2s ease; }
.main-nav a:hover, .main-nav a:focus-visible { color: var(--ink); }
.language-switch { display: flex; align-items: center; gap: 2px; flex: 0 0 auto; }
.language-switch a { display: grid; width: 30px; height: 30px; place-items: center; color: #688081; font-size: .65rem; font-weight: 750; border: 1px solid transparent; transition: color .2s ease, border-color .2s ease, background .2s ease; }
.language-switch a:hover, .language-switch a:focus-visible { color: var(--ink); border-color: var(--line); }
.language-switch a.active { color: var(--white); background: var(--ink); border-color: var(--ink); }
.nav-cta { display: inline-flex; align-items: center; gap: 18px; padding: 12px 16px; border: 1px solid var(--ink); font-size: .86rem; font-weight: 650; transition: background .2s ease, color .2s ease; }
.nav-cta:hover { background: var(--ink); color: var(--white); }
.nav-cta span { color: var(--accent); }
.menu-toggle { display: none; }

.hero { position: relative; overflow: hidden; padding: 88px 0 0; }
.hero::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 1px; background: linear-gradient(90deg, transparent, var(--accent), transparent); opacity: .28; }
.hero-grid { display: grid; grid-template-columns: 1.03fr .97fr; align-items: center; gap: 76px; min-height: 560px; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 22px; font-size: .74rem; line-height: 1.2; letter-spacing: .17em; text-transform: uppercase; font-weight: 700; color: #3f6666; }
.eyebrow span { width: 22px; height: 2px; background: var(--accent); }
.eyebrow.dark { color: #416263; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 28px; font-size: clamp(3.4rem, 6.1vw, 6.7rem); line-height: .94; letter-spacing: -.065em; font-weight: 720; }
h1 em { font-style: normal; color: #4e6869; font-weight: 420; }
.lang-kk h1 { font-size: clamp(3.1rem, 5.5vw, 6rem); }
.lang-en h1 { font-size: clamp(3rem, 5.1vw, 5.5rem); }
.lang-zh h1 { font-size: clamp(3rem, 5vw, 5.35rem); }
html[lang^="zh"] body { font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", "Segoe UI", Arial, sans-serif; }
.hero-lead { max-width: 620px; margin-bottom: 34px; color: #3e5a5b; font-size: 1.22rem; line-height: 1.55; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 26px; }
.button { display: inline-flex; justify-content: center; align-items: center; min-height: 52px; padding: 13px 22px; border: 0; cursor: pointer; font-weight: 700; }
.button-primary { color: var(--white); background: var(--ink); box-shadow: 9px 9px 0 var(--accent-2); transition: transform .2s ease, box-shadow .2s ease; }
.button-primary:hover { transform: translate(3px, 3px); box-shadow: 6px 6px 0 var(--accent-2); }
.text-link { font-weight: 650; border-bottom: 1px solid var(--line); padding-bottom: 4px; }
.text-link span { color: var(--accent); margin-left: 8px; }
.hero-note { margin: 28px 0 0; max-width: 560px; color: #6c7f80; font-size: .88rem; }

.system-map { position: relative; padding: 24px; border: 1px solid rgba(255,255,255,.13); background: var(--ink); color: var(--white); box-shadow: var(--shadow); overflow: hidden; }
.system-map::after { content: ""; position: absolute; width: 320px; height: 320px; right: -210px; top: -145px; border: 1px solid rgba(98,223,189,.3); transform: rotate(45deg); }
.map-head, .map-footer { display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.map-head { padding-bottom: 18px; border-bottom: 1px solid rgba(255,255,255,.13); font-size: .78rem; letter-spacing: .06em; text-transform: uppercase; }
.status { display: flex; align-items: center; gap: 7px; color: var(--mint); font-size: .66rem; }
.status i { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px rgba(22,199,154,.13); }
.map-sources { display: grid; grid-template-columns: repeat(4, 1fr); gap: 7px; margin-top: 22px; }
.map-sources span { padding: 8px 4px; border: 1px solid rgba(255,255,255,.13); text-align: center; font-size: .72rem; color: #a6b8b8; }
.map-flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 7px; height: 34px; }
.map-flow div { position: relative; }
.map-flow div::after { content: ""; position: absolute; left: 50%; top: 0; bottom: 0; width: 1px; background: linear-gradient(var(--accent), rgba(22,199,154,.1)); }
.map-core { padding: 20px; border-left: 3px solid var(--accent); background: rgba(255,255,255,.07); }
.map-core span, .map-core small { display: block; color: #9fb2b3; font-size: .69rem; }
.map-core strong { display: block; margin: 5px 0 6px; font-size: 1.18rem; }
.map-reports { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 28px 0 22px; }
.map-reports article { position: relative; min-height: 118px; padding: 14px; border: 1px solid rgba(255,255,255,.15); background: rgba(255,255,255,.035); }
.map-reports small { position: absolute; right: 12px; top: 10px; color: var(--accent); font-size: .62rem; }
.map-reports strong, .map-reports span { display: block; }
.map-reports strong { margin-top: 34px; font-size: .92rem; }
.map-reports span { color: #8fa6a7; font-size: .69rem; }
.map-footer { padding-top: 17px; border-top: 1px solid rgba(255,255,255,.13); color: #96aaab; font-size: .66rem; }

.proof-strip { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 90px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.proof-strip div { min-height: 110px; padding: 24px; border-right: 1px solid var(--line); }
.proof-strip div:first-child { border-left: 1px solid var(--line); }
.proof-strip strong, .proof-strip span { display: block; }
.proof-strip strong { margin-bottom: 5px; font-size: 1.08rem; }
.proof-strip span { color: var(--muted); font-size: .78rem; }
.proof-strip .wide-proof strong { font-size: 1.08rem; line-height: normal; }

.section { padding: 130px 0; }
.section-intro { display: grid; grid-template-columns: .36fr 1.1fr .65fr; gap: 45px; align-items: start; margin-bottom: 62px; }
.section-index { margin: 7px 0 0; color: #5f7a7a; font-size: .69rem; letter-spacing: .17em; text-transform: uppercase; font-weight: 800; }
.section-intro h2, .technology-copy h2, .about-copy h2, .contact-copy h2 { margin-bottom: 0; font-size: clamp(2.45rem, 4.4vw, 4.7rem); line-height: 1.02; letter-spacing: -.05em; font-weight: 670; }
.section-intro > p:last-child { margin: 9px 0 0; color: var(--muted); }
.question-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.question-card { min-height: 280px; padding: 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: background .25s ease, transform .25s ease; }
.question-card:hover { background: var(--white); transform: translateY(-3px); }
.question-card > span { display: block; margin-bottom: 50px; color: #6d8383; font-size: .7rem; }
.question-card h3 { margin-bottom: 16px; font-size: 1.38rem; line-height: 1.24; letter-spacing: -.025em; }
.question-card p { margin-bottom: 0; color: var(--muted); font-size: .89rem; }

.services { background: var(--ink); color: var(--white); }
.intro-light .section-index { color: var(--accent-2); }
.intro-light > p:last-child { color: #9cb0b0; }
.service-list { border-top: 1px solid rgba(255,255,255,.16); }
.service-row { display: grid; grid-template-columns: 70px 1.22fr .72fr; gap: 28px; padding: 34px 0; border-bottom: 1px solid rgba(255,255,255,.16); }
.service-row.flagship { padding-top: 46px; padding-bottom: 46px; }
.service-number { color: var(--accent-2); font-size: .75rem; }
.service-tag { margin-bottom: 10px; color: var(--accent-2); text-transform: uppercase; letter-spacing: .12em; font-size: .68rem; }
.service-main h3 { margin-bottom: 12px; max-width: 660px; font-size: 1.65rem; line-height: 1.16; letter-spacing: -.025em; }
.service-main p { margin-bottom: 0; max-width: 660px; color: #9db0b0; }
.service-outcome { padding-left: 22px; border-left: 1px solid rgba(255,255,255,.14); }
.service-outcome small, .service-outcome strong { display: block; }
.service-outcome small { margin-bottom: 10px; color: #829b9c; text-transform: uppercase; letter-spacing: .12em; font-size: .62rem; }
.service-outcome strong { font-size: .94rem; line-height: 1.45; }
.service-row details { grid-column: 2 / -1; }
.service-row summary { display: flex; justify-content: space-between; align-items: center; cursor: pointer; width: 100%; color: #a7b8b8; list-style: none; font-size: .78rem; }
.service-row summary::-webkit-details-marker { display: none; }
.service-row summary span { color: var(--accent-2); font-size: 1.2rem; transition: transform .2s ease; }
.service-row details[open] summary span { transform: rotate(45deg); }
.detail-content { padding: 24px 0 4px; }
.detail-content ul { columns: 2; column-gap: 50px; margin: 0; padding: 0; list-style: none; }
.detail-content li { break-inside: avoid; position: relative; padding: 0 0 11px 18px; color: #aababa; font-size: .86rem; }
.detail-content li::before { content: ""; position: absolute; left: 0; top: .65em; width: 6px; height: 1px; background: var(--accent); }

.approach-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; }
.sticky-intro { display: block; position: sticky; top: 130px; align-self: start; margin: 0; }
.sticky-intro h2 { margin: 22px 0 24px; }
.sticky-intro > p:last-child { max-width: 520px; }
.steps { border-top: 1px solid var(--line); }
.step { display: grid; grid-template-columns: 68px 1fr; gap: 20px; padding: 36px 0; border-bottom: 1px solid var(--line); }
.step-mark { color: var(--accent); font-size: .72rem; font-weight: 800; }
.step p { margin-bottom: 7px; color: #5f7a7a; text-transform: uppercase; letter-spacing: .13em; font-size: .65rem; font-weight: 700; }
.step h3 { margin-bottom: 10px; font-size: 1.42rem; letter-spacing: -.02em; }
.step span { color: var(--muted); }

.case-study { background: #dff9ef; }
.case-label { display: flex; justify-content: space-between; padding-bottom: 18px; border-bottom: 1px solid rgba(10,36,39,.22); color: #567071; font-size: .7rem; text-transform: uppercase; letter-spacing: .15em; font-weight: 750; }
.case-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 90px; padding: 68px 0; }
.case-title h2 { margin-bottom: 28px; font-size: clamp(2.7rem, 4.8vw, 5.1rem); line-height: 1; letter-spacing: -.055em; font-weight: 660; }
.case-title p { max-width: 650px; color: #526c6d; font-size: 1.04rem; }
.case-findings ol { list-style: none; padding: 0; margin: 42px 0 0; counter-reset: finding; }
.case-findings li { counter-increment: finding; position: relative; padding: 0 0 28px 48px; border-bottom: 1px solid rgba(10,36,39,.15); margin-bottom: 28px; }
.case-findings li::before { content: counter(finding, decimal-leading-zero); position: absolute; left: 0; top: 2px; color: #1a9478; font-size: .7rem; font-weight: 800; }
.case-findings strong, .case-findings span { display: block; }
.case-findings strong { margin-bottom: 5px; font-size: 1.04rem; }
.case-findings span { color: #587071; font-size: .89rem; }
.case-result { display: grid; grid-template-columns: .3fr 1fr; gap: 40px; padding: 30px 0 0; border-top: 1px solid rgba(10,36,39,.22); }
.case-result p { color: #5b7576; font-size: .74rem; text-transform: uppercase; letter-spacing: .13em; }
.case-result strong { max-width: 900px; font-size: 1.48rem; line-height: 1.4; }

.technology { background: var(--white); }
.technology-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 110px; align-items: start; }
.technology-copy h2 { margin: 22px 0 28px; }
.technology-copy > p:not(.section-index) { max-width: 610px; color: var(--muted); }
.tool-stack { border-top: 1px solid var(--line); }
.tool-line { display: grid; grid-template-columns: .35fr 1fr; gap: 24px; align-items: center; min-height: 94px; padding: 18px 4px; border-bottom: 1px solid var(--line); }
.tool-line span { color: #6e8585; font-size: .7rem; text-transform: uppercase; letter-spacing: .12em; }
.tool-line strong { font-size: 1.06rem; }

.about { background: #edf3f2; }
.about-grid { display: grid; grid-template-columns: .65fr 1.35fr; gap: 100px; align-items: start; }
.founder-card { position: sticky; top: 130px; padding: 18px 18px 26px; background: var(--ink); color: var(--white); box-shadow: var(--shadow); }
.founder-photo { display: block; width: 100%; aspect-ratio: .82 / 1; margin-bottom: 26px; object-fit: cover; object-position: 50% 30%; filter: contrast(1.03); }
.founder-card p { margin-bottom: 7px; color: var(--accent-2); font-size: .67rem; text-transform: uppercase; letter-spacing: .14em; }
.founder-card h3 { margin-bottom: 3px; font-size: 1.45rem; }
.founder-card span { color: #96aaab; font-size: .84rem; }
.about-copy h2 { margin: 22px 0 30px; }
.about-copy > p:not(.section-index) { max-width: 760px; color: var(--muted); font-size: 1.02rem; }
.expertise-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 34px; }
.expertise-tags span { padding: 8px 12px; border: 1px solid var(--line); background: rgba(255,255,255,.55); color: #496364; font-size: .74rem; }
.principles { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 100px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.principle { padding: 26px; min-height: 230px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.principle span { display: block; margin-bottom: 50px; color: #2c9a80; font-size: .69rem; font-weight: 750; }
.principle h3 { margin-bottom: 12px; font-size: 1.12rem; }
.principle p { margin-bottom: 0; color: var(--muted); font-size: .86rem; }

.community { background: var(--paper); }
.community .section-intro { grid-template-columns: .36fr 1.55fr; }
.community-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.community-card { padding: 38px; background: var(--white); border-top: 3px solid var(--ink); }
.community-card > p { color: #3d947f; font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; font-weight: 800; }
.community-card h3 { max-width: 520px; margin: 42px 0 18px; font-size: 1.75rem; line-height: 1.17; letter-spacing: -.035em; }
.community-card > span { display: block; max-width: 560px; color: var(--muted); }
.community-card a { display: flex; justify-content: space-between; margin-top: 54px; padding-top: 17px; border-top: 1px solid var(--line); font-size: .86rem; font-weight: 700; }
.community-card a b { color: var(--accent); }

.contact { padding: 120px 0; background: var(--ink); color: var(--white); }
.contact-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 90px; align-items: start; }
.contact-copy .eyebrow { color: var(--accent-2); }
.contact-copy h2 { margin-bottom: 30px; }
.contact-copy > p:last-child { max-width: 620px; color: #9db0b0; font-size: 1rem; }
.contact-panel { border-top: 1px solid rgba(255,255,255,.18); }
.contact-panel > p { padding: 17px 0; margin: 0; color: #8fa6a7; font-size: .71rem; text-transform: uppercase; letter-spacing: .13em; }
.contact-panel button { display: grid; grid-template-columns: 34px 1fr auto; align-items: center; width: 100%; min-height: 68px; padding: 0; color: var(--white); background: transparent; border: 0; border-top: 1px solid rgba(255,255,255,.13); cursor: pointer; text-align: left; }
.contact-panel button:hover { color: var(--accent-2); }
.contact-panel button span { color: #708788; font-size: .65rem; }
.contact-panel button b { color: var(--accent); }
.contact-panel small { display: block; padding-top: 18px; color: #708788; font-size: .7rem; }
.contact-panel .diagnostic-launch { min-height: 84px; border-top: 0; font-size: 1.08rem; font-weight: 700; }
.contact-direct { padding-top: 22px; border-top: 1px solid rgba(255,255,255,.18); }
.contact-direct > p { margin: 0 0 10px; color: #8fa6a7; font-size: .68rem; text-transform: uppercase; letter-spacing: .13em; }
.contact-direct a { display: grid; grid-template-columns: .7fr 1.3fr; gap: 20px; padding: 14px 0; border-top: 1px solid rgba(255,255,255,.1); }
.contact-direct a span { color: #708788; font-size: .72rem; }
.contact-direct a strong { font-size: .84rem; font-weight: 600; }
.contact-direct a:hover strong { color: var(--accent-2); }

.site-footer { padding: 50px 0; background: #061b1d; color: var(--white); }
.footer-grid { display: grid; grid-template-columns: .8fr 1fr .6fr .7fr; gap: 40px; align-items: start; }
.footer-wordmark { min-width: 0; }
.site-footer p { max-width: 290px; color: #849b9c; font-size: .82rem; }
.site-footer > .shell > div:not(.wordmark) { display: flex; flex-direction: column; gap: 8px; }
.site-footer a:not(.wordmark) { color: #9db0b0; font-size: .78rem; }
.footer-meta, .footer-meta a { color: #6f8788; font-size: .72rem; }

.contact-dialog { width: min(620px, calc(100% - 32px)); max-height: calc(100vh - 32px); padding: 40px; border: 0; color: var(--ink); background: var(--white); box-shadow: var(--shadow); overflow-y: auto; }
.contact-dialog::backdrop { background: rgba(4, 24, 25, .76); backdrop-filter: blur(5px); }
.contact-dialog h2 { margin: 16px 0; font-size: 2rem; letter-spacing: -.04em; }
.contact-dialog > p:not(.section-index) { color: var(--muted); }
.dialog-close { position: absolute; right: 15px; top: 12px; border: 0; background: transparent; cursor: pointer; font-size: 1.6rem; }
.diagnostic-form { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 26px; }
.diagnostic-form label { display: grid; gap: 7px; color: #496364; font-size: .74rem; font-weight: 650; }
.diagnostic-form label > span { color: var(--accent); }
.diagnostic-form label:nth-of-type(4), .diagnostic-form .consent, .diagnostic-form .button, .form-email { grid-column: 1 / -1; }
.diagnostic-form input:not([type="checkbox"]), .diagnostic-form textarea { width: 100%; padding: 12px 13px; border: 1px solid var(--line); color: var(--ink); background: #f8fbfa; outline: none; font: inherit; font-size: .92rem; }
.diagnostic-form input:focus, .diagnostic-form textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(22,199,154,.12); }
.diagnostic-form textarea { resize: vertical; }
.diagnostic-form .consent { display: flex; grid-template-columns: auto 1fr; align-items: flex-start; gap: 10px; font-weight: 400; line-height: 1.4; }
.diagnostic-form .consent input { margin-top: 3px; accent-color: var(--accent); }
.diagnostic-form .consent span { color: var(--muted); }
.form-email { justify-self: center; color: var(--muted); border-bottom: 1px solid var(--line); font-size: .77rem; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: .12s; }

@media (max-width: 1020px) {
  .shell { width: min(calc(100% - 36px), var(--max)); }
  .nav-cta { display: none; }
  .nav-shell { gap: 20px; }
  .main-nav { gap: 18px; }
  .hero { padding-top: 55px; }
  .hero-grid, .technology-grid, .contact-grid { grid-template-columns: 1fr; gap: 55px; }
  .hero-grid { min-height: 0; }
  h1 { max-width: 850px; }
  .system-map { max-width: 680px; }
  .proof-strip { margin-top: 70px; }
  .section-intro { grid-template-columns: .34fr 1fr; }
  .section-intro > p:last-child { grid-column: 2; }
  .question-grid { grid-template-columns: repeat(2, 1fr); }
  .approach-grid { gap: 55px; }
  .case-grid { grid-template-columns: 1fr; gap: 30px; }
  .case-title h2 { max-width: 850px; }
  .about-grid { gap: 55px; }
  .principles { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  .shell { width: min(calc(100% - 28px), var(--max)); }
  .nav-shell { height: 70px; gap: 9px; }
  .wordmark { width: 150px; min-width: 150px; }
  .language-switch { margin-left: auto; }
  .language-switch a { width: 27px; height: 28px; font-size: .59rem; }
  .language-switch a[lang="zh-CN"] { width: 34px; }
  .menu-toggle { display: grid; gap: 4px; margin-left: 0; width: 42px; height: 42px; place-content: center; border: 1px solid var(--line); background: transparent; }
  .menu-toggle span:not(.sr-only) { display: block; width: 18px; height: 1px; background: var(--ink); }
  .main-nav { position: absolute; left: 0; right: 0; top: 70px; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 12px 22px 22px; background: var(--paper); border-bottom: 1px solid var(--line); }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 13px 0; border-bottom: 1px solid var(--line); font-size: .96rem; }
  .hero { padding-top: 48px; }
  h1 { font-size: clamp(3.2rem, 15vw, 5.3rem); }
  .hero-lead { font-size: 1.05rem; }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .button { width: 100%; }
  .system-map { padding: 17px; }
  .map-footer { align-items: flex-start; flex-direction: column; }
  .proof-strip { grid-template-columns: repeat(2, 1fr); }
  .proof-strip div:nth-child(3) { border-left: 1px solid var(--line); }
  .section { padding: 92px 0; }
  .section-intro { display: block; margin-bottom: 40px; }
  .section-intro h2, .technology-copy h2, .about-copy h2, .contact-copy h2 { margin: 18px 0 22px; font-size: clamp(2.35rem, 11vw, 3.5rem); }
  .question-grid { grid-template-columns: 1fr; }
  .question-card { min-height: 235px; }
  .question-card > span { margin-bottom: 30px; }
  .service-row { grid-template-columns: 40px 1fr; gap: 14px; }
  .service-main { grid-column: 2; }
  .service-outcome { grid-column: 2; margin-top: 8px; }
  .service-row details { grid-column: 2; }
  .detail-content ul { columns: 1; }
  .approach-grid { grid-template-columns: 1fr; }
  .sticky-intro, .founder-card { position: relative; top: auto; }
  .case-label { align-items: flex-start; flex-direction: column; gap: 8px; }
  .case-result { grid-template-columns: 1fr; gap: 6px; }
  .technology-grid { gap: 40px; }
  .tool-line { grid-template-columns: 1fr; gap: 5px; padding: 20px 4px; }
  .about-grid { grid-template-columns: 1fr; }
  .founder-card { max-width: 520px; }
  .principles { grid-template-columns: 1fr; margin-top: 65px; }
  .community .section-intro { display: block; }
  .community-grid { grid-template-columns: 1fr; }
  .community-card { padding: 28px; }
  .contact { padding: 90px 0; }
  .footer-grid { grid-template-columns: 1fr; }
  .contact-dialog { padding: 32px 24px; }
  .diagnostic-form { grid-template-columns: 1fr; }
  .diagnostic-form label, .diagnostic-form label:nth-of-type(4), .diagnostic-form .consent, .diagnostic-form .button, .form-email { grid-column: 1; }
  .contact-direct a { grid-template-columns: 1fr; gap: 4px; }
}

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