:root {
  color-scheme: light;
  --paper: #f5f8fa;
  --white: #fff;
  --ink: #172d39;
  --muted: #536a76;
  --line: #d8e2e7;
  --blue: #3159d6;
  --blue-dark: #2449bd;
  --mint: #70e2c2;
  --navy: #112a37;
  --font-body: Inter, -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font: 16px/1.7 var(--font-body); -webkit-font-smoothing: antialiased; }
h1, h2, h3, p { margin-top: 0; }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 3px solid var(--blue); outline-offset: 4px; border-radius: 2px; }
.skip-link { position: fixed; z-index: 50; top: -70px; left: 16px; padding: 10px 14px; background: var(--navy); color: var(--white); }
.skip-link:focus { top: 12px; }
.wrap { width: min(100% - 84px, 1320px); margin-inline: auto; }
.section { padding-block: 112px; scroll-margin-top: 90px; }
.section-kicker, .eyebrow, .visual-top, .visual-bottom, .visual-callout span, .project-kind, .project-meta, .feature-art-caption, .art-corner, .art-footer, .expertise-number, .expertise-stack, .timeline-date, .timeline-type, .publication-list > article > span:first-child { font-family: var(--font-mono); letter-spacing: .065em; }
.section-kicker { margin: 0 0 17px; color: var(--blue); font-size: .76rem; font-weight: 700; }
.section-top { display: flex; align-items: end; justify-content: space-between; gap: 55px; margin-bottom: 46px; }
.section-top h2 { margin: 0; font-size: clamp(2.25rem, 3.5vw, 3.6rem); line-height: 1.25; letter-spacing: -.065em; font-weight: 760; }
.section-top h2 span { color: var(--blue); }
.section-top > p { width: min(100%, 280px); margin-bottom: 7px; color: var(--muted); line-height: 1.9; }

/* Header */
.site-header { position: relative; z-index: 10; background: rgba(245,248,250,.92); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
.header-inner { min-height: 84px; display: flex; align-items: center; gap: 35px; }
.brand { display: inline-flex; align-items: center; gap: 18px; flex: 0 0 auto; white-space: nowrap; }
.brand-mark { color: var(--ink); font-size: 1.34rem; line-height: 1; font-weight: 850; letter-spacing: -.1em; }
.brand-mark span { color: var(--blue); }
.brand-divider { width: 1px; height: 24px; background: #bccbd3; }
.brand-name { font-size: .86rem; font-weight: 780; letter-spacing: .02em; }
.brand-name span { margin-left: 3px; color: #758b96; font-weight: 500; }
.site-header nav { display: flex; gap: clamp(17px, 2.2vw, 32px); align-items: center; margin-left: auto; }
.site-header nav a, .header-contact { display: inline-flex; min-height: 44px; align-items: center; font-size: .84rem; font-weight: 690; transition: color .2s ease; }
.site-header nav a:hover, .header-contact:hover { color: var(--blue); }
.header-contact { gap: 10px; margin-left: clamp(10px, 2.7vw, 40px); padding: 0 16px; border: 1px solid #c5d4dd; border-radius: 5px; }
.header-contact span { color: var(--blue); }

/* Hero */
.hero { display: grid; grid-template-columns: minmax(0, 1.07fr) minmax(0, .93fr); gap: clamp(44px, 5vw, 78px); align-items: center; padding-block: 82px 94px; }
.hero-copy { padding-bottom: 7px; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin-bottom: 30px; color: var(--blue); font-size: .74rem; font-weight: 740; }
.signal-dot { display: inline-block; flex: 0 0 auto; width: 8px; height: 8px; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 5px #dce5ff; }
.eyebrow-divider { color: #99aab4; }
.hero h1 { margin-bottom: 29px; font-size: clamp(3.4rem, 4.6vw, 5.2rem); line-height: 1.19; font-weight: 830; letter-spacing: -.08em; }
.hero h1 span { position: relative; z-index: 0; color: var(--blue); white-space: nowrap; }
.hero h1 span::after { content: ""; position: absolute; z-index: -1; bottom: -.012em; left: 2%; right: 0; height: .13em; border-radius: 10px; background: #a9eed7; transform: rotate(-1.3deg); }
.hero-intro { max-width: 640px; margin-bottom: 0; color: var(--muted); font-size: 1.09rem; line-height: 1.98; }
.hero-intro strong { color: var(--ink); font-weight: 780; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.button { display: inline-flex; min-height: 52px; align-items: center; justify-content: center; gap: 25px; padding: 11px 22px; border-radius: 6px; font-size: .91rem; font-weight: 750; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.button:hover { transform: translateY(-3px); }
.button-primary { color: var(--white); background: var(--blue); box-shadow: 0 11px 25px #3159d624; }
.button-primary:hover { background: var(--blue-dark); }
.button-outline { border: 1px solid #b6c7d1; background: #fff8; }
.button-outline:hover { border-color: var(--blue); }
.hero-note { display: flex; align-items: center; gap: 9px; margin: 25px 0 0; color: #7b909b; font-size: .82rem; }
.hero-note span { color: var(--blue); font-size: 1.15rem; }
.hero-visual { position: relative; min-height: 570px; overflow: hidden; border: 1px solid #345263; border-radius: 13px; background: radial-gradient(circle at 52% 43%, #234957 0, #1a3949 53%, #142e3b 100%); color: #d9ebef; box-shadow: 21px 23px 0 -10px #dce8ee; }
.hero-visual::before { content: ""; position: absolute; inset: 0; opacity: .22; background-image: linear-gradient(#8dc2c820 1px, transparent 1px), linear-gradient(90deg, #8dc2c820 1px, transparent 1px); background-size: 31px 31px; }
.visual-top, .visual-bottom { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; padding: 22px 27px; font-size: .66rem; font-weight: 650; color: #b9d0d7; }
.visual-top { border-bottom: 1px solid #6f96a440; }
.visual-bottom { border-top: 1px solid #6f96a440; }
.visual-star { color: var(--mint); font-size: 1.35rem; line-height: 1; }
.visual-art { position: relative; height: 465px; }
.visual-art svg { display: block; position: absolute; left: 50%; top: 21px; height: 423px; width: min(100%, 470px); transform: translateX(-50%); }
.visual-callout { position: absolute; z-index: 2; display: grid; gap: 2px; min-width: 170px; padding: 13px 16px; border: 1px solid #7cb0b576; border-radius: 6px; background: #102d3bdc; box-shadow: 0 12px 24px #08202b40; }
.visual-callout span { color: var(--mint); font-size: .58rem; font-weight: 750; }
.visual-callout strong { font-size: .91rem; }
.visual-callout small { color: #bdd2d6; font-size: .71rem; }
.callout-one { bottom: 27px; left: 26px; }
.callout-two { top: 34px; right: 24px; }

/* Overview */
.intro-strip { border-block: 1px solid var(--line); background: #eaf1f4; }
.intro-strip-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.intro-strip-grid > div { display: grid; gap: 4px; padding: 24px 25px; border-left: 1px solid #d2dfe5; }
.intro-strip-grid > div:first-child { border-left: 0; padding-left: 0; }
.intro-strip-grid span { color: #738994; font-size: .76rem; }
.intro-strip-grid strong { font-size: 1rem; font-weight: 760; }

/* Projects */
.project-feature { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); min-height: 545px; overflow: hidden; border: 1px solid #d0dde3; border-radius: 11px; background: var(--white); box-shadow: 0 14px 38px #1c40530c; }
.feature-copy { padding: clamp(33px, 4.4vw, 62px); }
.project-meta { display: flex; align-items: center; gap: 19px; margin-bottom: 31px; color: var(--blue); font-size: .72rem; font-weight: 750; }
.status { display: inline-flex; gap: 7px; align-items: center; color: #4b7e72; }
.status i { width: 6px; height: 6px; border-radius: 50%; background: #3db591; }
.feature-copy h3 { margin-bottom: 10px; font-size: clamp(2.1rem, 3.15vw, 3.15rem); line-height: 1.2; letter-spacing: -.07em; }
.feature-copy h3 em { margin-left: 6px; color: #8aa0ac; font-size: .49em; font-style: normal; font-weight: 590; letter-spacing: -.035em; }
.feature-copy p { max-width: 490px; color: var(--muted); line-height: 1.88; }
.feature-copy .feature-lead { margin-bottom: 18px; color: var(--ink); font-size: 1.1rem; font-weight: 730; }
.feature-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px 19px; margin: 23px 0 29px; padding: 0; list-style: none; }
.feature-points li { position: relative; padding-left: 17px; color: #405b69; font-size: .83rem; }
.feature-points li::before { content: ""; position: absolute; top: .75em; left: 0; width: 7px; height: 7px; border: 2px solid #50bdab; border-radius: 50%; transform: translateY(-50%); }
.project-links { display: flex; flex-wrap: wrap; gap: 26px; }
.inline-link { display: inline-flex; align-items: center; gap: 12px; min-height: 40px; color: var(--blue); font-size: .88rem; font-weight: 780; border-bottom: 1px solid #7896ea; transition: gap .2s ease, color .2s ease; }
.inline-link:hover { gap: 17px; color: var(--blue-dark); }
.secondary-link { color: var(--muted); border-color: #b6c5cc; }
.feature-art { display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 21px; padding: 48px 34px 33px; overflow: hidden; background: radial-gradient(circle at 75% 12%, #caedf0, transparent 45%), linear-gradient(140deg, #dcebf0, #eaf3f4 55%, #d7e8e5); }
.app-window { width: min(100%, 600px); aspect-ratio: 1.18; overflow: hidden; transform: rotate(-2deg); border: 1px solid #b4cbd2; border-radius: 12px; background: #f8fbfa; box-shadow: 0 27px 35px #3861722e; }
.app-window-bar { display: flex; align-items: center; justify-content: space-between; height: 37px; padding: 0 14px; border-bottom: 1px solid #d3e0e3; background: #edf4f4; color: #7d9ba5; font: .62rem var(--font-mono); }
.window-dots { display: flex; gap: 5px; }
.window-dots i { width: 7px; height: 7px; border-radius: 50%; background: #a9c8cf; }
.window-dots i:first-child { background: #79cfc2; }
.app-preview { display: grid; grid-template-columns: 27% 73%; height: calc(100% - 37px); }
.app-sidebar { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; padding: 22px 11px; border-right: 1px solid #deeaec; background: #f5f9f9; }
.app-sidebar b { margin-bottom: 21px; color: #277b73; font-size: clamp(.8rem, 1.3vw, 1.15rem); letter-spacing: -.05em; }
.app-sidebar span { display: block; width: 100%; padding: 6px 8px; border-radius: 4px; color: #8ba1a6; font-size: clamp(.48rem, .7vw, .74rem); }
.app-sidebar span:nth-child(2) { color: #278e81; background: #dcf2eb; }
.app-main { position: relative; padding: 22px 27px; }
.app-main > small { display: block; margin-bottom: 9px; color: #93a9ab; font-size: .62rem; }
.app-main > strong { display: block; color: #315660; font-size: clamp(.8rem, 1.3vw, 1.2rem); }
.preview-metrics { display: flex; gap: 8px; margin-top: 16px; }
.preview-metrics span { display: grid; gap: 4px; width: 74px; padding: 9px 10px; border: 1px solid #dfeced; border-radius: 5px; background: #fff; }
.preview-metrics b { color: #729092; font: .53rem var(--font-mono); }
.preview-metrics i { width: 80%; height: 4px; border-radius: 2px; background: #cce9df; }
.preview-metrics i:last-child { width: 55%; background: #e7eff0; }
.preview-tree { position: absolute; left: 50%; top: 43%; width: 150px; height: 160px; transform: translateX(-50%); }
.tree-crown { position: absolute; z-index: 2; left: 21px; top: 12px; width: 112px; height: 88px; border-radius: 49% 51% 44% 56%; background: radial-gradient(circle at 35% 30%, #b8f1cb 0, #74cf9d 52%, #49aa91 100%); box-shadow: -25px 16px 0 -10px #8ddfb1, 23px 22px 0 -12px #5ec49d, 0 4px 0 9px #e9f9e8; }
.tree-trunk { position: absolute; z-index: 1; left: 70px; top: 73px; width: 18px; height: 76px; border-radius: 6px; background: #ad9473; }
.tree-ground { position: absolute; left: 24px; right: 15px; bottom: 5px; height: 12px; border-radius: 50%; background: #d7efdc; }
.preview-bottom { position: absolute; right: 25px; bottom: 16px; left: 25px; display: flex; justify-content: space-between; border-top: 1px solid #e2ecec; padding-top: 8px; color: #99abad; font: .56rem var(--font-mono); }
.feature-art-caption { color: #76929c; font-size: .65rem; }
.project-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 19px; }
.project-card { min-width: 0; overflow: hidden; border: 1px solid #d0dde3; border-radius: 9px; background: var(--white); }
.card-art { position: relative; display: flex; align-items: center; justify-content: center; height: 220px; overflow: hidden; }
.art-corner, .art-footer { position: absolute; z-index: 2; color: #ecf9fb; font-size: .62rem; font-weight: 650; }
.art-corner { top: 17px; left: 19px; }
.art-footer { right: 17px; bottom: 15px; left: 19px; opacity: .8; }
.agent-art { background: radial-gradient(circle at 50% 30%, #477ba1, transparent 53%), #244768; }
.agent-flow { display: flex; align-items: center; gap: 7px; padding: 0 18px; transform: rotate(-3deg); }
.agent-flow span { padding: 15px 8px; border: 1px solid #a3d1e599; border-radius: 6px; background: #2e6384; color: #f4fcff; font-size: .68rem; white-space: nowrap; box-shadow: 0 8px 18px #19365150; }
.agent-flow span:nth-of-type(3) { border-color: #8ce5ce; background: #357e80; }
.agent-flow i { width: 13px; height: 1px; flex: 0 0 auto; background: #a7d8db; }
.image-art { background: radial-gradient(circle at 69% 23%, #a795dd, transparent 52%), linear-gradient(145deg, #715aa5, #463e75); }
.tile-grid { display: grid; grid-template-columns: repeat(7, 24px); gap: 6px; transform: rotate(-7deg); }
.tile-grid i { height: 28px; border: 1px solid #e5d7ff60; border-radius: 3px; background: #d9baf1; box-shadow: 0 5px 8px #3b286140; }
.tile-grid i:nth-child(3n) { background: #a3c9ed; }.tile-grid i:nth-child(4n) { background: #f4c7d3; }.tile-grid i:nth-child(5n) { background: #c7d9bc; }
.companion-art { background: radial-gradient(circle at 24% 30%, #e4b98c, transparent 50%), #c98f68; }
.chat-shape { display: grid; gap: 9px; width: 75%; transform: rotate(-3deg); }
.chat-shape span { width: fit-content; max-width: 100%; padding: 12px 16px; border-radius: 14px 14px 14px 3px; background: #fff9ef; color: #74533f; font-size: .82rem; box-shadow: 0 8px 17px #945c3540; }
.chat-shape span:last-child { justify-self: end; border-radius: 14px 14px 3px 14px; background: #ffe0c3; }
.card-body { padding: 29px 29px 27px; }
.project-kind { margin-bottom: 13px; color: var(--blue); font-size: .68rem; font-weight: 750; }
.card-body h3 { margin-bottom: 15px; font-size: 1.34rem; line-height: 1.43; letter-spacing: -.045em; }
.card-body > p:not(.project-kind) { min-height: 126px; margin-bottom: 21px; color: var(--muted); font-size: .88rem; line-height: 1.82; }
.tag-list { display: flex; flex-wrap: wrap; gap: 7px; }
.tag-list span { padding: 5px 8px; border: 1px solid #d8e4e9; border-radius: 3px; color: #66808b; font-size: .68rem; }

/* Expertise */
.expertise-section { background: var(--navy); color: #f4fbfb; }
.section-top-light h2 span { color: var(--mint); }
.section-top-light .section-kicker { color: var(--mint); }
.section-top-light > p { color: #aec3cc; }
.expertise-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border: 1px solid #567280; border-radius: 8px; }
.expertise-grid article { position: relative; min-height: 305px; padding: 30px 32px 31px; border-left: 1px solid #567280; }
.expertise-grid article:first-child { border-left: 0; }
.expertise-number { position: absolute; right: 29px; top: 28px; color: #7593a1; font-size: .74rem; }
.expertise-icon { display: grid; width: 55px; height: 55px; place-items: center; border: 1px solid #6da2a9; border-radius: 50%; color: var(--mint); font-size: 1.7rem; }
.expertise-grid h3 { margin: 31px 0 12px; font-size: 1.25rem; }
.expertise-grid p { max-width: 300px; margin-bottom: 18px; color: #bad0d7; font-size: .88rem; line-height: 1.82; }
.expertise-stack { color: #86dfc9; font-size: .65rem; }

/* About */
.about-section { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(60px, 9vw, 150px); align-items: center; }
.about-aside { min-height: 400px; position: relative; overflow: hidden; padding: 34px 38px; border: 1px solid #c4d4dd; border-radius: 8px; background: linear-gradient(140deg, #e2eef2, #f5faf8); }
.about-aside .section-kicker { position: relative; z-index: 2; }
.about-monogram { position: absolute; bottom: -98px; left: 18px; color: #b8d3dc; font: 850 clamp(16rem, 26vw, 27rem)/.95 Arial, sans-serif; letter-spacing: -.13em; }
.about-monogram span { color: #5ebed0; }
.about-aside > p:last-child { position: absolute; z-index: 2; bottom: 20px; left: 38px; max-width: 250px; color: #345462; font-size: .95rem; font-weight: 670; }
.about-body h2 { margin-bottom: 29px; font-size: clamp(2.15rem, 3.25vw, 3.45rem); line-height: 1.4; letter-spacing: -.065em; }
.about-body h2 span { color: var(--blue); }
.about-body p { color: var(--muted); font-size: 1.02rem; line-height: 1.95; }
.about-body p + p { margin-top: 17px; }
.about-body .inline-link { margin-top: 13px; }

/* Journey */
.journey-section { background: #eaf1f4; }
.journey-layout { display: grid; grid-template-columns: .77fr 1.23fr; gap: clamp(45px, 8vw, 125px); }
.journey-heading h2 { margin: 0; font-size: clamp(2.15rem, 3.15vw, 3.35rem); line-height: 1.34; letter-spacing: -.065em; }
.timeline { border-top: 1px solid #bdcfd7; }
.timeline article { display: grid; grid-template-columns: 157px 1fr; gap: 24px; padding: 27px 0 29px; border-bottom: 1px solid #bdcfd7; }
.timeline-date { padding-top: 3px; color: var(--blue); font-size: .72rem; font-weight: 730; white-space: nowrap; }
.timeline-type { color: #66818d; font-size: .68rem; }
.timeline h3 { margin: 5px 0 10px; font-size: 1.17rem; line-height: 1.5; }
.timeline p { margin: 0; color: var(--muted); font-size: .86rem; line-height: 1.82; }

/* Research */
.research-section { padding-bottom: 118px; }
.publication-list { border-top: 1px solid #cddbe1; }
.publication-list article { display: grid; grid-template-columns: 180px minmax(0, 1fr); align-items: center; gap: 24px; padding: 28px 8px; border-bottom: 1px solid #cddbe1; }
.publication-list > article > span:first-child { color: var(--blue); font-size: .72rem; font-weight: 730; }
.publication-list h3 { margin-bottom: 5px; font-size: 1.22rem; line-height: 1.43; letter-spacing: -.025em; }
.publication-list p { margin: 0; color: #79909b; font-size: .86rem; }

/* Contact */
.contact-section { background: var(--blue); color: #fff; }
.contact-inner { display: flex; align-items: end; justify-content: space-between; gap: 35px; min-height: 340px; padding-block: 67px; }
.contact-inner .section-kicker { color: #d6e4ff; }
.contact-inner h2 { margin-bottom: 18px; font-size: clamp(2.1rem, 3.55vw, 3.7rem); line-height: 1.3; letter-spacing: -.065em; }
.contact-inner p:last-child { margin: 0; color: #dce5ff; }
.button-contact { flex: 0 0 auto; margin-bottom: 5px; background: #fff; color: var(--blue); }
.button-contact:hover { background: #eaf0ff; }
.site-footer { display: flex; align-items: center; justify-content: space-between; gap: 25px; min-height: 104px; color: #667e89; font-size: .78rem; }
.site-footer > div { display: flex; gap: 31px; }
.site-footer a:hover { color: var(--blue); }

@media (max-width: 1120px) {
  .wrap { width: min(100% - 58px, 1320px); }
  .header-inner { gap: 20px; }
  .brand-name span { display: none; }
  .hero { gap: 34px; }
  .hero h1 { font-size: clamp(3rem, 5vw, 4rem); }
  .hero-visual { min-height: 515px; }
  .visual-art { height: 411px; }
  .visual-art svg { height: 380px; }
  .project-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .card-body > p:not(.project-kind) { min-height: 0; }
  .project-card:last-child { grid-column: 1 / -1; display: grid; grid-template-columns: 44% 1fr; }
  .project-card:last-child .card-art { height: 100%; min-height: 220px; }
}

@media (max-width: 850px) {
  .hero { grid-template-columns: 1fr; padding-block: 66px 75px; }
  .hero-copy { max-width: 740px; }
  .hero h1 { font-size: clamp(3.3rem, 7vw, 5rem); }
  .hero-visual { width: min(100%, 680px); margin-inline: auto; }
  .project-feature { grid-template-columns: 1fr; }
  .feature-art { min-height: 440px; }
  .app-window { max-width: 570px; }
  .expertise-grid { grid-template-columns: 1fr; }
  .expertise-grid article { min-height: 0; border-left: 0; border-top: 1px solid #567280; }
  .expertise-grid article:first-child { border-top: 0; }
  .about-section, .journey-layout { grid-template-columns: 1fr; }
  .about-aside { min-height: 330px; }
  .journey-layout { gap: 35px; }
}

@media (max-width: 620px) {
  .wrap { width: min(100% - 36px, 1320px); }
  .section { padding-block: 77px; }
  .site-header nav { gap: 14px; }
  .site-header nav a { font-size: .78rem; }
  .site-header nav a:nth-child(3), .site-header nav a:nth-child(4) { display: none; }
  .header-inner { min-height: 69px; gap: 14px; }
  .brand { gap: 10px; }
  .brand-divider, .brand-name { display: none; }
  .header-contact { margin-left: auto; padding-inline: 9px; font-size: .77rem; }
  .hero { gap: 45px; padding-block: 58px 65px; }
  .eyebrow { font-size: .6rem; letter-spacing: .03em; }
  .hero h1 { font-size: clamp(2.5rem, 10vw, 3.7rem); line-height: 1.29; }
  .hero h1 span { white-space: normal; }
  .hero-intro { font-size: .99rem; line-height: 1.86; }
  .hero-actions { margin-top: 27px; }
  .button { min-height: 49px; gap: 16px; padding-inline: 17px; font-size: .83rem; }
  .hero-note { margin-top: 18px; font-size: .76rem; }
  .hero-visual { min-height: 445px; box-shadow: 15px 17px 0 -9px #dce8ee; }
  .visual-top, .visual-bottom { padding: 15px 17px; font-size: .55rem; }
  .visual-art { height: 365px; }
  .visual-art svg { top: 17px; height: 340px; }
  .visual-callout { min-width: 0; padding: 8px 10px; }
  .visual-callout span { font-size: .48rem; }
  .visual-callout strong { font-size: .69rem; }
  .visual-callout small { font-size: .6rem; }
  .callout-one { left: 12px; bottom: 14px; }
  .callout-two { right: 12px; top: 17px; }
  .intro-strip-grid { grid-template-columns: 1fr; }
  .intro-strip-grid > div { display: flex; align-items: center; gap: 18px; padding: 13px 0; border-left: 0; border-top: 1px solid #d2dfe5; }
  .intro-strip-grid > div:first-child { border-top: 0; }
  .intro-strip-grid span { width: 70px; flex: 0 0 auto; }
  .intro-strip-grid strong { font-size: .9rem; }
  .section-top { display: block; margin-bottom: 30px; }
  .section-top h2 { font-size: clamp(2rem, 7.5vw, 2.8rem); }
  .section-top > p { margin-top: 17px; }
  .feature-copy { padding: 31px 23px 34px; }
  .feature-copy h3 { font-size: 2.25rem; }
  .feature-points { grid-template-columns: 1fr; }
  .project-links { gap: 17px; }
  .feature-art { min-height: 340px; padding: 32px 14px 23px; }
  .app-window { width: 100%; max-width: 430px; }
  .app-main { padding: 13px 13px; }
  .preview-tree { transform: translateX(-50%) scale(.7); transform-origin: center top; }
  .app-sidebar { padding: 13px 5px; gap: 3px; }
  .app-sidebar b { margin-bottom: 7px; }
  .project-grid { grid-template-columns: 1fr; }
  .project-card:last-child { display: block; grid-column: auto; }
  .project-card:last-child .card-art { height: 220px; }
  .card-body { padding: 26px 23px; }
  .card-body > p:not(.project-kind) { min-height: 0; }
  .about-section { gap: 30px; }
  .about-aside { min-height: 290px; }
  .about-body h2 { font-size: 2.1rem; }
  .timeline article { grid-template-columns: 1fr; gap: 7px; }
  .publication-list article { display: block; padding: 22px 0; }
  .publication-list article > div { margin-top: 7px; }
  .publication-list h3 { font-size: 1.05rem; }
  .contact-inner { display: block; min-height: 0; padding-block: 63px; }
  .contact-inner h2 { font-size: 2.12rem; }
  .button-contact { margin-top: 29px; }
  .site-footer { display: block; padding-block: 27px; }
  .site-footer > div { display: flex; justify-content: space-between; gap: 20px; margin-top: 12px; }
}

@media (max-width: 375px) {
  .header-contact { display: none; }
  .hero h1 { font-size: 2.42rem; }
  .agent-flow { gap: 4px; }
  .agent-flow span { padding: 12px 6px; font-size: .62rem; }
  .agent-flow i { width: 7px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}