:root {
  color-scheme: light;
  --bg: #f7fbff;
  --text: #18354a;
  --muted: #597285;
  --line: #dce9f1;
  --mint: #087f89;
  --cyan: #06acc4;
  --blue: #4c72ec;
  --body: 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; font: 1rem/1.65 var(--body); color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; -webkit-tap-highlight-color: transparent; }
a:focus-visible { outline: 3px solid #2786e2; outline-offset: 6px; }
img { max-width: 100%; }
::selection { color: #123b57; background: #b7edf0; }
.skip { position: fixed; left: 20px; top: -100px; padding: 12px 20px; background: white; border: 1px solid var(--line); z-index: 20; border-radius: 8px; }
.skip:focus { top: 16px; }
.section-wrap { width: 100%; max-width: 1384px; margin: 0 auto; padding-left: 52px; padding-right: 52px; }
.mint { color: var(--mint); }
.site-header { max-width: 1440px; height: 92px; margin: auto; padding: 0 52px; display: flex; align-items: center; justify-content: space-between; gap: 24px; position: relative; z-index: 5; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 1.3rem; font-weight: 800; letter-spacing: .02em; white-space: nowrap; }
.brand img { border-radius: 50%; flex-shrink: 0; }
.site-header nav { display: flex; gap: 34px; font-size: .9375rem; color: #526d7c; }
.site-header nav a:hover, .text-link:hover { color: #00889c; }
.nav-cta { display: inline-flex; align-items: center; gap: 19px; border: 1px solid #bfdfe8; background: #ffffffb3; padding: 10px 19px; border-radius: 10px; font-size: .875rem; font-weight: 600; box-shadow: inset 0 1px white; }
.nav-cta:hover { background: #e8f8ff; }
main { overflow: clip; }
.hero { display: grid; grid-template-columns: .88fr 1.12fr; gap: 45px; align-items: center; padding-top: 5px; padding-bottom: 75px; position: relative; isolation: isolate; }
.hero:before { content: ''; position: absolute; z-index: -2; inset: -100px calc((1384px - 100vw)/2) 0; background: radial-gradient(ellipse at 83% 24%,#baeee970,transparent 42%),radial-gradient(ellipse at 80% 80%,#d0dffc77,transparent 48%),radial-gradient(ellipse at 14% 85%,#e4f9f2,transparent 40%),linear-gradient(160deg,#fcfeff,#f1f8ff); }
.hero:after { content: ''; position: absolute; z-index: -1; inset: 0 -8% -3%; pointer-events: none; background-image: linear-gradient(#659dc110 1px,transparent 1px),linear-gradient(90deg,#659dc110 1px,transparent 1px); background-size: 44px 44px; mask-image: radial-gradient(ellipse at 80% 45%,black 5%,transparent 66%); }
.hero-copy { padding: 40px 0 25px; position: relative; z-index: 2; }
.eyebrow { display: flex; gap: 10px; align-items: center; color: #407589; font-size: .75rem; font-weight: 600; letter-spacing: .10em; line-height: 1.8; }
.hero .eyebrow { display: inline-flex; padding: 6px 13px 6px 7px; border: 1px solid #c7e5ef; background: #ffffffa6; border-radius: 30px; color: #28748b; font-size: .8125rem; letter-spacing: .04em; }
.tiny-star { display: grid; place-items: center; width: 27px; height: 27px; border-radius: 50%; background: linear-gradient(135deg,#d6f7ea,#daedff); color: #029aaa; font-size: 1.125rem; }
.hero h1 { margin: 27px 0 22px; font-size: clamp(2.5rem,4vw,3.55rem); font-weight: 800; line-height: 1.4; letter-spacing: -.045em; }
.hero h1>span { color: #087fba; background: linear-gradient(105deg,#079a8d 0%,#058daa 40%,#4a68db 95%); background-clip: text; -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-description { margin: 0; color: var(--muted); font-size: 1.0625rem; line-height: 2; }
.hero-actions { margin-top: 33px; display: flex; align-items: center; flex-wrap: wrap; gap: 25px; }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 23px; min-height: 55px; padding: 15px 24px; border-radius: 11px; font-size: .9375rem; font-weight: 650; transition: transform .2s,box-shadow .2s; }
.primary { color: white; background: linear-gradient(110deg,#03999e,#3285dd); box-shadow: 0 8px 25px #209bc02c,inset 0 1px #ffffff50; }
.primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px #209bc041; }
.text-link { display: inline-flex; align-items: center; gap: 10px; color: #42647a; font-size: .875rem; font-weight: 550; }
.play-icon { border: 1px solid #aac7d8; width: 27px; height: 27px; display: grid; place-items: center; border-radius: 50%; }
.hero-footnote { display: flex; align-items: center; gap: 15px; margin-top: 29px; color: #6a8291; font-size: .8125rem; }
.hero-footnote i { width: 3px; height: 3px; border-radius: 50%; background: #7cabb9; }
.hero-visual { position: relative; min-width: 0; padding-top: 4px; }
.hero-scene { height: 178px; position: relative; isolation: isolate; }
.hero-mascot { width: 248px; height: auto; position: absolute; right: 33px; bottom: -19px; filter: drop-shadow(0 12px 16px #479db727); }
.scene-label { position: absolute; left: 15px; top: 56px; display: flex; gap: 11px; align-items: center; z-index: 2; }
.engine-symbol { display: grid; place-items: center; width: 46px; height: 46px; color: #fff; background: linear-gradient(140deg,#05baa1,#2788ed); border-radius: 13px; box-shadow: 0 5px 0 #b7e1ed,0 10px 23px #28a9cc29; font: 700 1.0625rem/1 system-ui,sans-serif; letter-spacing: -.03em; }
.scene-label>div>span { display: block; font: 600 .75rem/1.8 ui-monospace,monospace; color: #387d99; letter-spacing: .13em; }
.scene-label strong { display: block; color: #51758a; font-size: .8125rem; font-weight: 550; margin-top: 3px; }
.scene-orbit { position: absolute; width: 260px; height: 90px; border: 1px solid #68c7d789; border-radius: 50%; right: 20px; bottom: 10px; transform: rotate(-10deg); box-shadow: 0 0 24px #7ce4df33,inset 0 0 20px #8be9ef2c; z-index: -1; }
.scene-orbit:before { content: ''; position: absolute; inset: 14px -20px; border: 1px solid #76bbef66; border-radius: 50%; transform: rotate(25deg); }
.data-label { position: absolute; right: 1px; top: 42px; writing-mode: vertical-rl; color: #5d8fa3; font: .75rem ui-monospace,monospace; letter-spacing: .1em; }
.graph-panel { position: relative; z-index: 3; padding: 24px 26px 0; border: 1px solid #c9e4ee; border-radius: 20px; background: linear-gradient(135deg,#ffffffef,#ffffffb8 62%,#eff7ffd6); box-shadow: 0 20px 60px #528ac320,0 1px 0 white,inset 0 1px 1px white; backdrop-filter: blur(15px); overflow: hidden; }
.graph-panel:before { content: ''; position: absolute; height: 2px; top: 0; left: 10%; right: 10%; background: linear-gradient(90deg,transparent,#51d7cd,#74b4ff,transparent); }
.graph-heading { display: flex; align-items: center; justify-content: space-between; gap: 15px; }
.overline { color: #5488a1; font: 500 .75rem/1.7 ui-monospace,monospace; letter-spacing: .055em; }
.graph-heading h2 { font-size: 1.25rem; margin: 7px 0 0; font-weight: 650; line-height: 1.6; }
.ai-chip { padding: 7px 10px; background: #edf8fc; border: 1px solid #d6ebf3; color: #4b7d95; border-radius: 7px; font-size: .75rem; flex-shrink: 0; }
.graph-key { display: flex; flex-wrap: wrap; gap: 23px; margin-top: 20px; font-size: .75rem; color: #597585; }
.graph-key>span { display: flex; align-items: center; gap: 7px; }
.key-line { width: 20px; border-top: 2px solid #0fa8c1; }
.key-line.dashed { border-color: #9babbc; border-top-style: dashed; }
.memory-chart { width: 100%; height: auto; display: block; overflow: visible; margin-top: 17px; }
.chart-grid { stroke: #dfeaf2; fill: none; stroke-width: 1; stroke-dasharray: 3 5; }
.chart-axis { fill: #6e879a; font-size: 13px; }
.natural-curve { fill: none; stroke: #9aaabb; stroke-width: 2; stroke-dasharray: 6 6; }
.curve-area { fill: url(#chart-fill); }
.enhanced { fill: none; stroke: url(#line-spectrum); stroke-width: 3.5; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 1400; stroke-dashoffset: 1400; animation: curve-draw 2.2s .15s ease-out forwards; }
.enhanced.glow { stroke-width: 9; opacity: .22; filter: url(#glow); }
.curve-trace { fill: none; stroke: #ffffff; stroke-width: 3; stroke-linecap: round; stroke-dasharray: 22 1400; stroke-dashoffset: 22; opacity: 0; animation: curve-trace 2.5s 1.4s ease-in-out forwards; }
.review-points { fill: white; stroke: #0ba4ba; stroke-width: 3; }
.review-points .end-point { fill: #547bec; stroke: #dce5ff; stroke-width: 5; }
.curve-labels { fill: #3487a4; font-size: 13px; font-weight: 600; }
.graph-bottom { margin: 8px -26px 0; padding: 16px 22px; border-top: 1px solid #daeaf4; background: #f8fcff9c; display: flex; gap: 12px; align-items: center; }
.scan-icon { color: #139fba; font-size: 2rem; }
.graph-bottom p { margin: 0; }
.graph-bottom strong { display: block; font-size: .8125rem; font-weight: 550; line-height: 1.7; }
.graph-bottom p span { display: block; color: #728797; font-size: .75rem; margin-top: 3px; }
.graph-index { margin-left: auto; color: #648da7; font: .75rem/1.6 ui-monospace,monospace; text-align: right; }
.signal-flow { display: flex; align-items: center; justify-content: space-around; gap: 9px; padding: 20px 12px 0; color: #53758b; font-size: .8125rem; }
.signal-flow>span { display: flex; align-items: center; gap: 7px; }
.signal-flow i { font: normal .75rem ui-monospace,monospace; color: #2683a7; }
.signal-flow b { font-weight: 400; color: #9bbccb; }
.principles { border-top: 1px solid #d5e6ef; border-bottom: 1px solid #d5e6ef; display: flex; gap: 20px; align-items: center; justify-content: space-between; padding-top: 25px; padding-bottom: 25px; background: #ffffffb3; }
.principles-label { font-size: .8125rem; color: #708794; }
.principles>div { font-size: .9375rem; font-weight: 550; }
.principles>div>span { color: #4696af; font: .75rem ui-monospace,monospace; margin-right: 11px; }
.principles-mark { font: .75rem ui-monospace,monospace; color: #6e96b0; letter-spacing: .05em; }
.memory-section { display: grid; grid-template-columns: 1fr 1fr; gap: 105px; padding-top: 106px; padding-bottom: 110px; }
.section-intro h2,.section-heading h2,.companion-copy h2 { font-size: clamp(1.9rem,3vw,2.65rem); letter-spacing: -.04em; line-height: 1.45; margin: 18px 0; font-weight: 700; }
.section-intro>p,.memory-story>p,.section-heading>p,.companion-copy>p { font-size: 1rem; line-height: 1.95; color: var(--muted); }
.memory-model { margin-top: 36px; padding: 22px 24px; border: 1px solid #d4e6f1; border-radius: 17px; background: linear-gradient(140deg,#fff,#eef9fc 68%,#edf2ff); position: relative; overflow: hidden; }
.model-top { display: flex; justify-content: space-between; gap: 12px; color: #6a8ca0; font-size: .75rem; }
.model-top>span:first-child { font-family: ui-monospace,monospace; letter-spacing: .07em; }
.model-core { display: flex; gap: 22px; align-items: center; padding: 27px 0 25px; }
.model-core>span { width: 66px; height: 66px; display: grid; place-items: center; color: #fff; font: 600 1.8rem system-ui,sans-serif; border-radius: 18px; background: linear-gradient(135deg,#05b5b5,#4388f2); box-shadow: 0 0 0 5px #e4f6fd,0 0 0 6px #b7deef; }
.model-core p { margin: 0; color: #58788d; font-size: .875rem; }
.model-core strong { display: block; margin-top: 4px; color: #25556e; font-size: 1rem; font-weight: 600; }
.model-nodes { display: flex; gap: 14px; justify-content: space-between; position: relative; }
.model-nodes:before { content: ''; position: absolute; height: 1px; top: 50%; left: 0; right: 0; background: linear-gradient(90deg,#39b9c7,#779cde); }
.model-nodes span { position: relative; padding: 7px 12px; border: 1px solid #cce3ed; background: #f9fdff; border-radius: 6px; color: #3e7388; font-size: .8125rem; }
.model-caption { font-size: .75rem; color: #648194; margin: 18px 0 0; }
.section-number { color: #4285a3; font: .8125rem ui-monospace,monospace; letter-spacing: .03em; }
.memory-story h3 { font-size: 1.7rem; line-height: 1.6; margin: 17px 0; font-weight: 600; }
.memory-steps { margin-top: 28px; }
.memory-steps article { display: flex; gap: 20px; padding: 21px 0; border-top: 1px solid var(--line); }
.memory-steps article>span { display: grid; place-items: center; flex-shrink: 0; width: 34px; height: 34px; border: 1px solid #cce7f2; border-radius: 8px; background: #eefaff; color: #178fa6; font: .75rem ui-monospace,monospace; }
.memory-steps h4 { margin: 0 0 8px; font-size: 1rem; font-weight: 650; }
.memory-steps p { margin: 0; font-size: 1rem; line-height: 1.85; color: var(--muted); }
.experience-section { position: relative; isolation: isolate; padding-top: 78px; padding-bottom: 85px; }
.experience-section:before { content: ''; position: absolute; z-index: -1; inset: 0 calc((1384px - 100vw)/2); background: linear-gradient(120deg,#eef9fc,#f1f5ff); border-block: 1px solid #e0ebf3; }
.section-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; margin-bottom: 35px; }
.section-heading h2 { font-size: 2.2rem; margin-bottom: 0; }
.section-heading>p { margin: 0; font-size: 1rem; }
.practice-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 17px; }
.practice-grid article { position: relative; padding: 27px 23px; border: 1px solid #d6e5f0; background: linear-gradient(145deg,#ffffffed,#fafdffb3); border-radius: 17px; box-shadow: inset 0 1px white; transition: transform .2s,box-shadow .2s; overflow: hidden; }
.practice-grid article:before { content: ''; position: absolute; width: 80px; height: 2px; background: var(--accent); top: 0; left: 23px; }
.practice-grid article:nth-child(1) { --accent: #388fe3; }
.practice-grid article:nth-child(2) { --accent: #10b3a2; }
.practice-grid article:nth-child(3) { --accent: #8f80df; }
.practice-grid article:nth-child(4) { --accent: #e3ad4c; }
.practice-grid article:hover { transform: translateY(-5px); box-shadow: 0 15px 30px #527fa716; }
.practice-icon { width: 52px; height: 52px; display: grid; place-items: center; border: 1px solid #ffffffd9; border-radius: 13px; font-size: 1.5rem; font-weight: 650; box-shadow: 0 4px 12px #698da010; margin-bottom: 27px; }
.blue { color: #2581c8; background: linear-gradient(135deg,#ddf2ff,#eef7fe); }
.mint-icon { color: #0c9787; background: linear-gradient(135deg,#d5f5ee,#eefaf7); }
.violet { color: #8670c3; background: linear-gradient(135deg,#e9e4ff,#f5f2ff); }
.amber { color: #af7f23; background: linear-gradient(135deg,#ffebc6,#fff9ec); }
.practice-number { position: absolute; right: 23px; top: 30px; color: #8ca6b7; font: .75rem ui-monospace,monospace; }
.practice-grid h3 { font-size: 1.2rem; margin: 0 0 13px; }
.practice-grid p { font-size: 1rem; color: var(--muted); line-height: 1.9; min-height: 90px; margin: 0 0 22px; }
.practice-tag { display: block; color: #6b8ba2; font: .75rem/1.8 ui-monospace,monospace; letter-spacing: .02em; padding-top: 16px; border-top: 1px solid #e1ebf3; }
.companion-section { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; align-items: center; padding-top: 105px; padding-bottom: 105px; }
.companion-art { position: relative; text-align: center; isolation: isolate; }
.companion-art img { display: block; width: 86%; height: auto; margin: auto; filter: drop-shadow(0 20px 20px #58a2ae22); }
.mascot-halo { position: absolute; z-index: -1; inset: 15% 3% 9%; border: 1px solid #c8e3ee; border-radius: 50%; background: radial-gradient(circle,#d0f4ec,#e8f7ff 65%,transparent 70%); }
.mascot-halo:after { content: ''; position: absolute; inset: 10% -5%; border: 1px dashed #88c2d870; border-radius: 50%; transform: rotate(-20deg); }
.companion-label { display: inline-block; margin-top: 20px; color: #7296ac; font: .75rem/1.8 ui-monospace,monospace; letter-spacing: .04em; }
.companion-details { margin: 28px 0; display: grid; gap: 24px; }
.companion-details>div { position: relative; padding-left: 44px; }
.detail-mark { position: absolute; left: 0; top: 0; width: 30px; height: 30px; display: grid; place-items: center; color: #218da9; background: #e5f5fb; border: 1px solid #d4e9f4; border-radius: 8px; font-size: 1.2rem; }
.companion-details h3 { font-size: 1rem; margin: 0 0 7px; }
.companion-details p { font-size: 1rem; color: var(--muted); line-height: 1.9; margin: 0; }
.closing { max-width: 1280px; text-align: center; border: 1px solid #cfe3f2; background: radial-gradient(ellipse at 0 0,#c9f3ecaa,transparent 50%),radial-gradient(ellipse at 100% 100%,#cddcff99,transparent 60%),#f1faff; padding: 66px 30px; border-radius: 22px; margin-bottom: 60px; position: relative; overflow: hidden; isolation: isolate; }
.closing:before { content: ''; position: absolute; inset: 0; z-index: -1; background-image: linear-gradient(#87b5d218 1px,transparent 1px),linear-gradient(90deg,#87b5d218 1px,transparent 1px); background-size: 35px 35px; mask-image: linear-gradient(90deg,black,transparent 30%,transparent 70%,black); }
.closing .eyebrow { justify-content: center; }
.closing h2 { font-size: 2.2rem; margin: 21px 0 29px; line-height: 1.6; letter-spacing: -.03em; font-weight: 650; }
.closing h2 span { color: #188cab; }
.closing>p { font-size: .8125rem; color: #648195; margin: 23px 0 0; }
.site-footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; border-top: 1px solid var(--line); padding-top: 30px; padding-bottom: 30px; }
.site-footer .brand { font-size: 1.1rem; }
.site-footer>p,.site-footer>span { color: #6b8193; font-size: .75rem; }
.science-note { width: 100%; color: #708699; font-size: .75rem; line-height: 1.9; padding-top: 15px; border-top: 1px solid #e5edf4; }
.science-note a { color: #4d7998; text-decoration: underline; text-underline-offset: 3px; margin-left: 10px; }
@keyframes curve-draw { to { stroke-dashoffset: 0; } }
@keyframes curve-trace { 0% { opacity: 0; stroke-dashoffset: 22; } 12% { opacity: 1; } 88% { opacity: 1; } 100% { stroke-dashoffset: -1200; opacity: 0; } }
@media(max-width:1384px) { .hero:before,.experience-section:before { left: 0; right: 0; } .closing { width: auto; margin-left: 52px; margin-right: 52px; } }
@media(max-width:1100px) {
  .section-wrap { padding-left: 32px; padding-right: 32px; }
  .site-header { padding: 0 32px; }
  .hero { gap: 26px; grid-template-columns: .9fr 1.1fr; }
  .hero h1 { font-size: 2.5rem; }
  .hero-description { font-size: 1rem; }
  .hero-actions { gap: 18px; }
  .button { padding: 14px 19px; gap: 16px; }
  .hero-scene { height: 165px; }
  .hero-mascot { width: 218px; right: 10px; }
  .scene-label { left: 4px; top: 62px; gap: 8px; }
  .scene-label strong { max-width: 130px; font-size: .75rem; }
  .engine-symbol { width: 37px; height: 37px; border-radius: 10px; }
  .scene-label>div>span { font-size: .75rem; letter-spacing: .03em; }
  .scene-orbit { right: 0; width: 230px; }
  .data-label { right: -8px; top: 21px; }
  .graph-panel { padding: 21px 19px 0; }
  .graph-heading h2 { font-size: 1.0625rem; }
  .graph-key { gap: 13px; }
  .graph-bottom { margin-left: -19px; margin-right: -19px; padding: 15px 19px; }
  .graph-index { display: none; }
  .signal-flow { font-size: .75rem; padding-inline: 0; gap: 5px; }
  .signal-flow>span { gap: 4px; }
  .memory-section { gap: 60px; padding-top: 85px; padding-bottom: 85px; }
  .memory-model { padding: 21px 18px; }
  .model-nodes { gap: 8px; }
  .model-nodes span { padding: 7px 9px; font-size: .75rem; }
  .section-heading h2 { font-size: 1.9rem; }
  .practice-grid { gap: 12px; }
  .practice-grid article { padding: 24px 18px; }
  .practice-grid h3 { font-size: 1.125rem; }
  .practice-number { right: 18px; }
  .companion-section { gap: 55px; }
  .closing { margin-left: 32px; margin-right: 32px; }
  .closing h2 { font-size: 1.9rem; }
}
@media(max-width:800px) {
  .site-header { height: 82px; padding: 0 24px; gap: 15px; }
  .brand { font-size: 1.15rem; gap: 8px; }
  .brand img { width: 38px; height: 38px; }
  .site-header nav { display: none; }
  .nav-cta { padding: 9px 12px; gap: 10px; font-size: .8125rem; }
  .section-wrap { padding-left: 24px; padding-right: 24px; }
  .hero { grid-template-columns: 1fr; gap: 27px; padding-top: 20px; padding-bottom: 48px; }
  .hero:after { mask-image: radial-gradient(ellipse at 50% 40%,black,transparent 80%); inset: 0; }
  .hero-visual { display: contents; }
  .hero-scene { order: -1; height: 185px; max-width: 490px; width: 100%; margin: 0 auto; }
  .hero-mascot { width: 235px; right: 18px; bottom: -14px; }
  .scene-label { left: 17px; top: 81px; }
  .scene-label strong { max-width: 175px; }
  .scene-orbit { right: 15px; width: 240px; bottom: 0; }
  .data-label { right: 0; top: 30px; }
  .hero-copy { padding: 0; text-align: center; order: 0; }
  .hero h1 { font-size: clamp(2.25rem,6.5vw,3rem); margin-top: 20px; margin-bottom: 20px; }
  .hero-description { font-size: 1rem; }
  .desktop-break { display: none; }
  .hero-actions,.hero-footnote { justify-content: center; }
  .hero-actions { margin-top: 24px; }
  .hero-footnote { margin-top: 23px; }
  .graph-panel { order: 1; width: 100%; max-width: 620px; margin: 6px auto 0; padding: 23px 24px 0; }
  .graph-heading h2 { font-size: 1.25rem; }
  .graph-bottom { margin-left: -24px; margin-right: -24px; padding: 17px 24px; }
  .signal-flow { order: 2; max-width: 620px; width: 100%; margin: -8px auto 0; padding: 0 4px; font-size: .8125rem; }
  .principles { display: grid; grid-template-columns: 1fr 1fr; row-gap: 19px; }
  .principles>div { font-size: .875rem; }
  .principles-mark { display: none; }
  .memory-section { grid-template-columns: 1fr; gap: 38px; padding-top: 65px; padding-bottom: 65px; }
  .section-intro h2,.companion-copy h2 { font-size: 2rem; margin-top: 15px; }
  .memory-model { margin-top: 28px; }
  .memory-story h3 { font-size: 1.625rem; }
  .model-nodes span { font-size: .8125rem; padding: 8px 16px; }
  .experience-section { padding-top: 58px; padding-bottom: 65px; }
  .section-heading { display: block; margin-bottom: 28px; }
  .section-heading>p { margin-top: 18px; }
  .section-heading h2 { font-size: 1.875rem; margin-top: 14px; }
  .practice-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .practice-grid article { padding: 25px 22px; }
  .practice-grid p { min-height: 90px; }
  .companion-section { grid-template-columns: 1fr; gap: 38px; padding-top: 60px; padding-bottom: 65px; }
  .companion-art { width: 100%; max-width: 400px; margin: auto; }
  .closing { margin: 0 24px 40px; padding: 45px 22px; border-radius: 18px; }
  .closing h2 { font-size: 1.75rem; }
  .closing h2 span { display: block; }
  .site-footer>p { display: none; }
  .site-footer .brand { font-size: 1rem; }
  .site-footer { gap: 15px; }
  .science-note a { margin-left: 0; display: inline-block; }
}
@media(max-width:450px) {
  .section-wrap { padding-left: 20px; padding-right: 20px; }
  .site-header { padding-inline: 18px; }
  .brand { font-size: 1rem; }
  .brand img { width: 34px; height: 34px; }
  .nav-cta { font-size: .75rem; padding: 9px 10px; gap: 7px; }
  .hero { padding-top: 9px; gap: 26px; }
  .hero-scene { height: 174px; }
  .hero-mascot { width: 209px; right: 0; bottom: -8px; }
  .scene-label { top: 72px; left: 0; display: block; }
  .engine-symbol { width: 34px; height: 34px; font-size: .875rem; margin-bottom: 9px; }
  .scene-label strong { max-width: 132px; font-size: .75rem; line-height: 1.6; }
  .scene-label>div>span { font-size: .75rem; }
  .scene-orbit { width: 210px; right: -3px; }
  .data-label { display: none; }
  .hero h1 { font-size: 2.16rem; letter-spacing: -.045em; }
  .hero .eyebrow { font-size: .75rem; }
  .hero-description { line-height: 1.9; }
  .hero-actions { gap: 18px; }
  .text-link { font-size: .875rem; }
  .hero-footnote { gap: 12px; font-size: .75rem; }
  .graph-panel { padding: 19px 15px 0; border-radius: 15px; }
  .graph-heading { align-items: flex-start; gap: 8px; }
  .graph-heading h2 { font-size: 1rem; }
  .ai-chip { padding: 5px 7px; font-size: .75rem; }
  .overline { font-size: .75rem; }
  .graph-key { gap: 10px; font-size: .75rem; }
  .key-line { width: 13px; }
  .graph-key>span { gap: 5px; }
  .graph-bottom { margin-inline: -15px; padding: 13px 15px; gap: 8px; }
  .graph-bottom strong { font-size: .8125rem; }
  .graph-bottom p span { font-size: .75rem; }
  .scan-icon { font-size: 1.625rem; }
  .signal-flow { gap: 4px; font-size: .75rem; }
  .signal-flow i { display: none; }
  .principles { gap: 16px; }
  .principles>div>span { margin-right: 6px; }
  .principles-label { font-size: .75rem; }
  .model-top { gap: 8px; font-size: .75rem; }
  .model-nodes span { font-size: .75rem; padding: 7px 10px; }
  .memory-model { padding: 20px 16px; }
  .section-heading h2 { font-size: 1.7rem; }
  .practice-grid { gap: 12px; }
  .practice-grid article { padding: 22px 16px; }
  .practice-icon { width: 45px; height: 45px; font-size: 1.3rem; }
  .practice-grid p { font-size: 1rem; min-height: 122px; }
  .practice-grid h3 { font-size: 1.05rem; }
  .practice-tag { font-size: .75rem; word-break: break-word; }
  .closing { margin-left: 20px; margin-right: 20px; padding: 42px 18px; }
  .closing h2 { font-size: 1.5rem; }
  .closing .eyebrow { font-size: .75rem; letter-spacing: .03em; }
}
@media(prefers-reduced-motion:reduce) {
  html { scroll-behavior: auto; }
  *,*:before,*:after { animation: none!important; transition: none!important; }
  .enhanced { stroke-dashoffset: 0; }
  .curve-trace { display: none; }
}

/* Full-width page: keep only a small reading gutter, never a boxed canvas. */
.section-wrap { max-width: none; padding-left: clamp(20px,3vw,56px); padding-right: clamp(20px,3vw,56px); }
.site-header { max-width: none; padding-left: clamp(20px,3vw,56px); padding-right: clamp(20px,3vw,56px); }
.hero:before,.experience-section:before { left: 0; right: 0; }
.hero:after { left: 0; right: 0; }
.closing { width: 100%; max-width: none; margin-left: 0; margin-right: 0; border-radius: 0; border-left: 0; border-right: 0; }
@media(min-width:1600px) {
  .hero { grid-template-columns: .92fr 1.08fr; gap: 5vw; padding-top: 20px; }
  .hero h1 { font-size: clamp(3.55rem,3.4vw,5rem); }
  .hero-description { font-size: 1.1875rem; }
  .hero .memory-chart { height: 350px; }
  .hero-scene { height: 190px; }
  .hero-mascot { width: 270px; right: 65px; }
  .scene-orbit { right: 45px; width: 285px; }
  .scene-label { left: 25px; top: 80px; }
  .memory-section,.companion-section { gap: 8vw; }
  .companion-art { max-width: 570px; margin: auto; width: 100%; }
  .practice-grid { gap: 24px; }
  .practice-grid article { padding: 32px; }
  .practice-grid p { min-height: 62px; }
}
@media(max-width:800px) {
  .closing { margin-left: 0; margin-right: 0; border-radius: 0; }
  .graph-panel,.signal-flow { max-width: none; }
}