:root {
  --s: min(.0520833333vw, 1px);
  --header-height: calc(70 * var(--s));
  --ink: #17202b;
  --navy: #13263f;
  --muted: #52647b;
  --orange: #ff6636;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-height); }
body { margin: 0; color: var(--ink); background: #fff; font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
figure, h1, h2, h3, h4, p, dl, dd, ul { margin: 0; }
ul { padding: 0; list-style: none; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--orange); outline-offset: 6px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 100; top: 8px; left: 8px; padding: 12px 18px; transform: translateY(-160%); color: #fff; background: var(--navy); }
.skip-link:focus { transform: none; }
.skip-link:not(:focus) { clip-path: inset(50%); }

.hero { position: relative; height: 100svh; background: #0b131a; }
.hero-video { position: absolute; top: var(--header-height); left: 0; width: 100%; height: calc(100% - var(--header-height)); object-fit: contain; background: #0b131a; }
.laptop-frame { position: relative; }
.laptop-video { position: absolute; top: 3.88%; left: 14.84%; width: 70.22%; height: 87.1%; object-fit: contain; background: #000; }
.site-header { position: fixed; z-index: 50; inset: 0 0 auto; height: var(--header-height); color: #fff; background: rgba(11, 19, 26, .86); border-bottom: 1px solid #ffffff14; -webkit-backdrop-filter: saturate(180%) blur(20px); backdrop-filter: saturate(180%) blur(20px); }
.header-inner { display: flex; align-items: center; justify-content: space-between; width: calc(1440 * var(--s)); height: 100%; margin: auto; }
.brand { flex: 0 0 calc(111 * var(--s)); }
.main-nav { position: relative; display: flex; align-items: center; justify-content: space-between; flex: 0 0 calc(920 * var(--s)); margin-left: auto; margin-right: calc(106 * var(--s)); color: #fff; font-size: calc(16 * var(--s)); white-space: nowrap; }
.main-nav a { position: relative; padding: calc(15 * var(--s)) 0; }
.main-nav a[aria-current="location"] { color: #fff; font-weight: 600; }
.nav-indicator { position: absolute; left: 0; bottom: calc(9 * var(--s)); width: 1px; height: calc(2 * var(--s)); background: #fff; opacity: 0; pointer-events: none; transform-origin: left center; transition: transform 200ms cubic-bezier(.77, 0, .175, 1); }
.menu-toggle { display: none; min-width: 44px; min-height: 44px; padding: 0; border: 0; background: transparent; color: #fff; font: inherit; font-size: 24px; cursor: pointer; }
.menu-toggle, .character-list button { touch-action: manipulation; user-select: none; -webkit-user-select: none; -webkit-tap-highlight-color: transparent; }
.menu-toggle:active { background: #ffffff24; }

.scene { --s: min(.0520833333vw, 1px, calc((100svh - var(--header-height)) / 970)); display: grid; place-items: center; height: calc(100svh - var(--header-height)); overflow: clip; background-position: center; background-size: cover; }
.canvas { position: relative; width: calc(1920 * var(--s)); height: calc(970 * var(--s)); margin: auto; }
.layer { position: absolute; top: calc(var(--y) * var(--s)); left: calc(var(--x) * var(--s)); width: calc(var(--w) * var(--s)); }
.section-title { position: absolute; top: calc(70 * var(--s)); left: calc(808 * var(--s)); width: calc(304.5 * var(--s)); color: var(--ink); text-align: center; font-size: calc(56 * var(--s)); font-weight: 700; line-height: calc(78 * var(--s)); white-space: nowrap; }
.section-title span { color: var(--orange); }
.section-title::before, .section-title::after { position: absolute; top: calc(20 * var(--s)); width: calc(26 * var(--s)); height: calc(37 * var(--s)); content: ""; background: url("assets/icon-emphasis.png") center / contain no-repeat; }
.section-title::before { left: 0; transform: scaleX(-1); }
.section-title::after { right: 0; }
.decoration { pointer-events: none; }

.brand-story { background-image: url("assets/background-brand-story.png"); }
.brand-copy { color: #151515; font-size: calc(18 * var(--s)); line-height: 1.45; }
.mumo-heading { display: flex; align-items: center; gap: calc(14 * var(--s)); margin-bottom: calc(16 * var(--s)); color: var(--navy); white-space: nowrap; }
.mumo-heading > img { width: calc(224 * var(--s)); flex-shrink: 0; }
.mumo-heading > span { font-size: calc(37 * var(--s)); font-weight: 700; }
.brand-copy > p + p { margin-top: calc(25 * var(--s)); }
.emotion-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: calc(18 * var(--s)); margin-top: calc(24 * var(--s)); }
.emotion-card { position: relative; height: calc(297 * var(--s)); padding: calc(25 * var(--s)) calc(20 * var(--s)); border-radius: calc(17 * var(--s)); }
.anger { background: #fdf3ef; }
.fear { background: #f4f4f4; }
.sadness { background: #eff8fc; }
.emotion-card h4 { display: flex; align-items: center; gap: calc(12 * var(--s)); margin-bottom: calc(10 * var(--s)); font-size: calc(24 * var(--s)); color: var(--navy); }
.emotion-card h4 img { width: auto; height: calc(24 * var(--s)); }
.emotion-card p { color: var(--muted); font-size: calc(16 * var(--s)); line-height: 1.6; }
.emotion-art { position: absolute; bottom: calc(16 * var(--s)); left: 50%; width: calc(155.5 * var(--s)); max-height: calc(151 * var(--s)); object-fit: contain; transform: translateX(-50%); }
.fear .emotion-art { width: calc(197 * var(--s)); }
.sadness .emotion-art { width: calc(133.5 * var(--s)); }
.ip-link { display: flex; justify-content: center; align-items: center; gap: calc(7 * var(--s)); height: calc(56 * var(--s)); border-radius: 999px; background: #10233d; color: #fff; font-size: calc(20 * var(--s)); white-space: nowrap; }
.ip-link span { font-size: calc(28 * var(--s)); }
.ip-link:hover { filter: brightness(1.15); }

.ip-world { background-image: url("assets/background-ip-story.png"); }
.ip-title { left: calc(828 * var(--s)); width: calc(264.5 * var(--s)); }
.ip-intro { text-align: center; font-size: calc(20 * var(--s)); line-height: 1.5; color: #171717; }
.ip-intro p + p { margin-top: calc(26 * var(--s)); }
.decorative-copy { font-family: "Segoe Script", "KaiTi", cursive; color: #ffcf64; font-size: calc(34 * var(--s)); line-height: 1.3; font-weight: 700; text-align: center; transform: rotate(-12deg); }
.ip-note { color: #ffdb8d; font-size: calc(28 * var(--s)); white-space: nowrap; }
.character-portrait { height: calc(510 * var(--s)); object-fit: contain; object-position: center bottom; }
.character-card { min-height: calc(420 * var(--s)); padding: calc(32 * var(--s)) calc(54 * var(--s)); border: calc(11 * var(--s)) solid #fff; border-radius: calc(34 * var(--s)); background: #fdf8ed; box-shadow: 0 0 calc(8 * var(--s)) #efdbb675; color: #161616; }
.character-heading { display: flex; align-items: center; gap: calc(30 * var(--s)); margin-bottom: calc(14 * var(--s)); }
.character-heading h3 { font-family: Arial, sans-serif; font-size: calc(38 * var(--s)); color: #e84c32; }
.character-heading p { font-size: calc(20 * var(--s)); }
.character-mark { position: absolute; top: calc(60 * var(--s)); right: calc(75 * var(--s)); width: calc(39.5 * var(--s)); height: calc(47 * var(--s)); object-fit: contain; }
.character-traits { font-size: calc(20 * var(--s)); }
.character-traits > div { display: flex; align-items: center; min-height: calc(40 * var(--s)); }
.character-traits dt { display: flex; align-items: center; gap: calc(16 * var(--s)); width: calc(160 * var(--s)); flex-shrink: 0; }
.character-traits dt img { width: calc(21 * var(--s)); max-height: calc(24 * var(--s)); object-fit: contain; }
.character-traits > div:first-child dt { width: calc(44 * var(--s)); }
.character-traits > div:not(:first-child):not(:last-child) dd { padding-bottom: calc(5 * var(--s)); border-bottom: 1px solid #dedbd3; }
.character-quote { min-height: calc(72 * var(--s)); margin-top: calc(5 * var(--s)); color: #e94c33; font-size: calc(24 * var(--s)); line-height: 1.5; font-weight: 700; }
.character-list { display: grid; grid-template-columns: repeat(5, 1fr); align-items: end; text-align: center; font-size: calc(24 * var(--s)); }
.character-list li { min-width: 0; }
.character-list button { display: flex; align-items: center; flex-direction: column; justify-content: end; width: 100%; min-height: calc(144 * var(--s)); padding: 0; border: 0; border-radius: 8px; background: transparent; color: inherit; font: inherit; cursor: pointer; }
.character-list button > span { position: relative; padding-bottom: calc(8 * var(--s)); }
.character-list button[aria-pressed="true"] span { color: #c94925; font-weight: 700; }
.character-list button[aria-pressed="true"] span::after { position: absolute; bottom: 0; left: 50%; width: calc(24 * var(--s)); height: calc(3 * var(--s)); border-radius: 999px; background: var(--orange); content: ""; transform: translateX(-50%); }
.character-list button:active { transform: scale(.97); }
.character-list button > img { width: calc(112 * var(--s)); height: calc(96 * var(--s)); object-fit: contain; margin-bottom: calc(8 * var(--s)); }
.character-list li:first-child img { width: calc(78 * var(--s)); }
.character-list li:nth-child(2) img { width: calc(85 * var(--s)); }

.experience { background-image: url("assets/background-product-experience.png"); }
.experience-copy { min-height: calc(377 * var(--s)); padding: calc(20 * var(--s)) calc(38 * var(--s)); border: 2px solid #fff; border-radius: calc(20 * var(--s)); background: #ffffff55; }
.experience-copy > h3 { color: var(--navy); font-size: calc(37 * var(--s)); line-height: 1.4; margin-bottom: calc(15 * var(--s)); }
.experience-copy > p { font-size: calc(20 * var(--s)); line-height: 1.4; color: #141414; }
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: calc(42 * var(--s)); margin-top: calc(22 * var(--s)); }
.feature-list article > img { width: calc(96 * var(--s)); margin-bottom: calc(5 * var(--s)); }
.feature-list h4 { font-size: calc(24 * var(--s)); color: var(--navy); margin-bottom: calc(10 * var(--s)); }
.feature-list p { font-size: calc(16 * var(--s)); line-height: 1.5; color: var(--muted); }
.scenario-list { display: flex; justify-content: space-between; align-items: end; }
.scenario-list li { width: calc(194.5 * var(--s)); }
.scenarios-title { font-size: calc(36 * var(--s)); font-weight: 500; line-height: 1.3; white-space: nowrap; text-align: center; color: var(--navy); }
.scenarios-title img { width: calc(24 * var(--s)); height: calc(22 * var(--s)); margin: calc(15 * var(--s)) auto 0; filter: hue-rotate(323deg) saturate(1.5); }
.scenario-art { height: calc(165 * var(--s)); overflow: hidden; }
.scenario-list figcaption { height: calc(50 * var(--s)); padding-top: calc(4 * var(--s)); text-align: center; border-radius: 0 0 50% 50% / 0 0 100% 100%; background: #f2dad6; color: #705045; font-size: calc(24 * var(--s)); font-weight: 700; }
.scenario-list li:nth-child(2) figcaption { background: #dcd8ef; color: #53458c; }
.scenario-list li:nth-child(3) figcaption { background: #d8efe3; color: #426f5f; }
.scenario-list li:nth-child(4) figcaption { background: #cce8f2; color: #385e7b; }
.scenario-list li:nth-child(5) figcaption { background: #ebddf3; color: #664283; }
.scenario-list li:nth-child(6) figcaption { background: #f5e7cb; color: #765637; }

.about { background-image: url("assets/background-about.png"); }
.about-title { left: calc(778 * var(--s)); width: calc(364.5 * var(--s)); }
.about-letter { height: calc(486 * var(--s)); padding: calc(185 * var(--s)) calc(70 * var(--s)) calc(45 * var(--s)) calc(125 * var(--s)); background: url("assets/background-letter-paper.png") center / 100% 100% no-repeat; color: #161616; }
.about-letter > p { font-size: calc(20 * var(--s)); line-height: 1.5; white-space: nowrap; }
.about-letter .about-emphasis { margin-top: calc(50 * var(--s)); margin-left: calc(-33 * var(--s)); color: #ff1707; }
.about-envelope { height: calc(402 * var(--s)); }
.about-envelope > p { position: absolute; top: calc(5 * var(--s)); left: calc(15 * var(--s)); color: #ff8068; font-family: "KaiTi", "Microsoft YaHei", sans-serif; font-size: calc(38 * var(--s)); line-height: 1.5; text-align: center; font-weight: 700; transform: rotate(-12deg); }
.envelope-art { position: absolute; bottom: 0; width: 100%; height: calc(240 * var(--s)); overflow: hidden; }
.envelope-art img { width: 100%; margin-top: calc(-162 * var(--s)); }

.research { background-image: url("assets/background-research.png"); }
.research-column h3 { display: flex; align-items: center; gap: calc(16 * var(--s)); color: var(--navy); font-size: calc(24 * var(--s)); font-weight: 600; margin-bottom: calc(20 * var(--s)); }
.research-icon { width: calc(64 * var(--s)); height: calc(64 * var(--s)); flex-shrink: 0; }
.ai-icon { display: grid; place-items: center; background: url("assets/background-icon-peach.png") center / contain no-repeat; }
.ai-icon img { width: calc(35 * var(--s)); }
.research-column p { color: var(--muted); font-size: calc(16 * var(--s)); line-height: 1.5; }
.research-column p + p { margin-top: calc(24 * var(--s)); }
.research-collage { position: absolute; top: calc(278 * var(--s)); width: 100%; }
.terminal-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: calc(18 * var(--s)) calc(20 * var(--s)); }
.terminal-image { position: relative; height: calc(108 * var(--s)); overflow: hidden; }
.terminal-image img { position: absolute; width: calc(606.5 * var(--s)); max-width: none; left: calc(-1 * var(--offset-x) * var(--s)); top: calc(-1 * var(--offset-y) * var(--s)); }
.terminal-gallery figcaption { width: fit-content; max-width: 100%; padding: calc(10 * var(--s)) calc(18 * var(--s)); margin: calc(8 * var(--s)) auto 0; border-radius: 999px; background: #dce8ff; color: #1749f2; font-family: "SimSun", serif; font-size: calc(18 * var(--s)); line-height: 1.2; white-space: nowrap; }

.production { background-image: url("assets/background-production.png"); }
.factory-copy { min-height: calc(302 * var(--s)); padding: calc(32 * var(--s)) calc(36 * var(--s)); border: 2px solid #fff; border-radius: calc(20 * var(--s)); background: #ffffff66; }
.factory-copy h3 { color: var(--navy); font-size: calc(24 * var(--s)); font-weight: 500; line-height: 1.4; margin-bottom: calc(20 * var(--s)); white-space: nowrap; }
.factory-copy p { color: var(--muted); font-size: calc(18 * var(--s)); line-height: 1.55; }
.certificates { display: flex; align-items: center; justify-content: space-between; height: calc(285 * var(--s)); padding: calc(32 * var(--s)) calc(106 * var(--s)); border: 2px solid #fff; border-radius: calc(17 * var(--s)); background: #ffffff44; }
.certificates li { height: calc(217 * var(--s)); }
.certificates img { width: auto; height: 100%; }

.partners { background-image: url("assets/background-partners.png"); }
.partner-top { position: absolute; top: calc(190 * var(--s)); left: calc(666 * var(--s)); width: calc(588 * var(--s)); display: grid; grid-template-columns: repeat(3, 1fr); align-items: center; justify-items: center; }
.partner-top img { width: auto; height: auto; max-width: calc(92 * var(--s)); max-height: calc(46 * var(--s)); }
.partner-row { display: flex; align-items: center; justify-content: center; height: calc(137 * var(--s)); }
.partner-row:first-child { height: calc(110 * var(--s)); align-items: start; }
.partner-row li { display: flex; justify-content: center; align-items: center; position: relative; padding-bottom: calc(29 * var(--s)); background: url("assets/decoration-partner-pedestal.png") bottom center / calc(228 * var(--s)) calc(29 * var(--s)) no-repeat; }
.partner-row.three li { width: calc(312 * var(--s)); }
.partner-row.four li { width: calc(312 * var(--s)); flex-shrink: 0; }
.partner-row img { width: auto; max-width: calc(189 * var(--s)); height: auto; max-height: calc(52 * var(--s)); }
.partner-row.three img { max-width: calc(172 * var(--s)); }
.partner-row.four li:first-child > img:first-child { width: calc(98 * var(--s)); }
.partner-row.four li:nth-child(3) img { width: calc(146 * var(--s)); }
.partner-row.four li:nth-child(4) img { width: calc(68 * var(--s)); }
.partner-row li .registered { position: absolute; width: calc(11.5 * var(--s)); height: auto; right: calc(88 * var(--s)); bottom: calc(25 * var(--s)); }

.site-footer { height: calc(433 * var(--s)); background: #050505; color: #fff; }
.footer-inner { display: grid; grid-template-columns: calc(410 * var(--s)) calc(533 * var(--s)) 1fr; width: calc(1440 * var(--s)); height: calc(393 * var(--s)); margin: auto; padding-top: calc(58 * var(--s)); }
.footer-brand { width: calc(213.5 * var(--s)); align-self: start; }
.site-footer h2 { font-size: calc(24 * var(--s)); font-weight: 700; margin-bottom: calc(22 * var(--s)); }
.contact-info { font-size: calc(20 * var(--s)); line-height: 1.4; }
.footer-label { color: #888; margin-bottom: calc(16 * var(--s)); }
.address-label { margin-top: calc(32 * var(--s)); }
.contact-info address { font-style: normal; white-space: nowrap; }
.contact-info a:hover, .copyright a:hover { color: #ffae7b; }
.qr-list { display: flex; gap: calc(35 * var(--s)); margin-top: calc(43 * var(--s)); }
.qr-list figure { width: calc(118.5 * var(--s)); text-align: center; }
.qr-list figcaption { font-size: calc(14 * var(--s)); margin-top: calc(26 * var(--s)); }
.copyright { display: flex; align-items: center; justify-content: center; gap: calc(65 * var(--s)); height: calc(40 * var(--s)); font-size: calc(14 * var(--s)); background: #1e1e1e; }

@media (max-width: 1000px) {
  :root { --s: 1px; --header-height: 68px; }
  .hero { height: calc(var(--header-height) + 56.25vw); min-height: 300px; }
  .header-inner { width: calc(100% - 40px); }
  .brand { flex-basis: 148px; }
  .main-nav { position: absolute; top: 100%; left: 0; right: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; max-height: calc(100svh - var(--header-height)); margin: 0; padding: 10px 20px 18px; overflow-y: auto; background: #050505; border-bottom: 1px solid #ffffff24; font-size: 14px; }
  .main-nav.is-open { display: flex; }
  .main-nav a { min-height: 48px; padding: 14px 0; }
  .menu-toggle { display: grid; place-items: center; }
  .scene, .about { --s: 1px; display: block; height: auto; background-size: auto 100%; }
  .canvas { display: flex; flex-direction: column; align-items: center; width: 100%; height: auto; padding: 44px 24px 48px; gap: 28px; }
  .layer, .section-title { position: static; width: 100%; }
  .section-title { position: relative; top: auto; left: auto; width: 244px; font-size: 44px; line-height: 62px; }
  .section-title::before, .section-title::after { top: 14px; width: 22px; height: 30px; }
  .ip-title { width: 212px; }
  .about-title { width: 292px; }
  .decoration { display: none; }
  .decorative-copy { display: none; }
  .brand-poster { max-width: 680px; }
  .brand-copy { max-width: 723px; font-size: 16px; }
  .mumo-heading { flex-wrap: wrap; gap: 10px; white-space: normal; }
  .mumo-heading > img { width: 150px; }
  .mumo-heading > span { font-size: 25px; }
  .brand-copy > p + p { margin-top: 18px; }
  .emotion-cards { gap: 14px; margin-top: 24px; }
  .emotion-card { height: 285px; padding: 22px 18px; border-radius: 17px; }
  .emotion-card h4 { font-size: 22px; gap: 8px; }
  .emotion-card p { font-size: 15px; }
  .emotion-art { max-width: calc(100% - 22px); }
  .ip-link { width: 172px; }
  .ip-intro { max-width: 750px; font-size: 16px; }
  .ip-intro p + p { margin-top: 16px; }
  .desktop-break { display: none; }
  .character-portrait { width: 240px; height: 294px; }
  .character-card { max-width: 750px; min-height: 0; padding: 28px; border-width: 7px; border-radius: 26px; }
  .character-heading { gap: 20px; margin-bottom: 18px; }
  .character-heading h3 { font-size: 34px; }
  .character-heading p, .character-traits { font-size: 16px; }
  .character-mark { display: none; }
  .character-traits > div { min-height: 40px; }
  .character-traits dt { width: 130px; gap: 12px; }
  .character-traits dd { line-height: 1.6; }
  .character-quote { white-space: normal; font-size: 18px; line-height: 1.6; margin-top: 12px; }
  .character-list { max-width: 750px; font-size: 18px; }
  .character-list button { min-height: 115px; }
  .character-list button > img { max-width: 90%; height: 80px; }
  .experience-poster { max-width: 669px; }
  .experience-copy { max-width: 741px; min-height: 0; padding: 28px; border-radius: 20px; }
  .experience-copy > h3 { font-size: 30px; }
  .experience-copy > p { font-size: 17px; }
  .feature-list { gap: 24px; }
  .feature-list h4 { font-size: 21px; }
  .feature-list p { font-size: 15px; }
  .scenarios-title { width: 216px; font-size: 30px; }
  .scenario-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: 750px; }
  .scenario-list li { width: 100%; max-width: 194.5px; justify-self: center; }
  .about-letter { max-width: 760px; height: auto; min-height: 0; padding: 0 16px 16px; border: solid transparent; border-width: 96px 24px 32px; border-image: url("assets/background-letter-paper.png") 300 120 100 160 fill; background: none; }
  .about-letter > p { font-size: 17px; line-height: 1.8; white-space: normal; }
  .about-letter br { display: none; }
  .about-letter .about-emphasis { margin: 25px 0 0; }
  .about-envelope { position: relative; top: auto; left: auto; width: 270px; height: 270px; }
  .about-envelope > p { font-size: 27px; top: 0; left: 0; }
  .envelope-art { height: 161px; }
  .envelope-art img { margin-top: -109px; }
  .research-column { max-width: 606.5px; }
  .research-column + .research-column { margin-top: 20px; }
  .research-column h3 { font-size: 22px; }
  .research-column p { font-size: 16px; line-height: 1.7; }
  .research-collage { position: static; margin-top: 28px; }
  .terminal-gallery { gap: 18px 14px; }
  .terminal-image { height: auto; aspect-ratio: 188 / 108; }
  .terminal-image img { width: 324%; left: calc(-1 * var(--offset-x) / 188 * 100%); top: calc(-1 * var(--offset-y) / 108 * 100%); }
  .terminal-gallery figcaption { font-size: 16px; white-space: normal; padding: 9px 12px; }
  .factory-photo { max-width: 764px; }
  .factory-copy { max-width: 764px; min-height: 0; padding: 28px; }
  .factory-copy h3 { font-size: 22px; white-space: normal; }
  .factory-copy p { font-size: 17px; line-height: 1.8; }
  .certificates { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: 764px; height: auto; padding: 26px; }
  .certificates li { display: flex; align-items: center; justify-content: center; height: 190px; }
  .certificates img { max-height: 100%; height: auto; }
  .partner-top { position: static; width: min(100%, 540px); }
  .partner-top img { max-width: 92px; max-height: 46px; }
  .partner-board { max-width: 700px; }
  .partner-row, .partner-row:first-child { height: auto; min-height: 120px; align-items: center; gap: 20px; }
  .partner-row.three li, .partner-row.four li { width: auto; flex: 1 1 0; min-width: 0; background-size: 100% 20px; padding-bottom: 24px; }
  .partner-row img, .partner-row.three img { max-width: 100%; max-height: 48px; object-fit: contain; }
  .partner-row li .registered { display: none; }
  .site-footer { height: auto; }
  .footer-inner { width: calc(100% - 48px); height: auto; padding: 44px 0; grid-template-columns: 1fr 1fr; gap: 35px; }
  .footer-brand { grid-column: 1 / -1; width: 180px; }
  .site-footer h2 { font-size: 21px; }
  .contact-info { font-size: 16px; }
  .contact-info address { white-space: normal; }
  .qr-list { gap: 20px; margin-top: 25px; }
  .qr-list figure { width: 110px; }
  .qr-list figcaption { font-size: 13px; margin-top: 14px; }
  .copyright { height: auto; min-height: 55px; padding: 14px 24px; flex-wrap: wrap; gap: 8px 24px; font-size: 12px; text-align: center; }
}

@media (max-width: 540px) {
  .canvas { padding: 36px 20px 40px; gap: 24px; }
  .hero { min-height: 300px; }
  .mumo-heading > span { font-size: 22px; }
  .emotion-cards { grid-template-columns: 1fr; gap: 12px; }
  .emotion-card { height: auto; min-height: 170px; padding: 20px 150px 20px 20px; }
  .emotion-card h4 { font-size: 22px; gap: 8px; }
  .emotion-card h4 img { height: 18px; }
  .emotion-card p { font-size: 14px; line-height: 1.6; }
  .emotion-art, .fear .emotion-art, .sadness .emotion-art { left: auto; right: 12px; bottom: 12px; width: 125px; max-height: 140px; transform: none; }
  .character-card { padding: 22px 16px; }
  .character-heading { flex-wrap: wrap; gap: 10px; }
  .character-heading h3 { font-size: 30px; }
  .character-traits dt { width: 115px; gap: 8px; }
  .character-traits { font-size: 15px; }
  .character-traits dt img { width: 18px; }
  .character-traits > div { min-height: 42px; align-items: start; }
  .character-traits > div:first-child dt { width: 26px; }
  .character-traits dt, .character-traits dd { padding-top: 6px; }
  .character-list { font-size: 14px; }
  .character-list button { min-height: 90px; }
  .character-list button > img { height: 60px; }
  .experience-copy { padding: 22px 18px; }
  .experience-copy > h3 { font-size: 25px; }
  .feature-list { grid-template-columns: 1fr; gap: 22px; }
  .feature-list article { display: grid; grid-template-columns: 68px 1fr; column-gap: 14px; }
  .feature-list article > img { grid-row: 1 / 3; width: 68px; }
  .feature-list h4 { font-size: 20px; margin-bottom: 6px; }
  .scenario-list { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .scenario-art { height: auto; aspect-ratio: 194.5 / 165; }
  .scenario-list figcaption { height: 43px; font-size: 20px; }
  .about-letter { padding: 0 12px 12px; }
  .about-letter > p { font-size: 16px; }
  .research-column h3 { font-size: 20px; gap: 12px; }
  .research-icon { width: 52px; height: 52px; }
  .ai-icon img { width: 30px; }
  .terminal-gallery { grid-template-columns: repeat(2, 1fr); }
  .factory-copy { padding: 22px 18px; }
  .factory-copy h3 { font-size: 20px; }
  .factory-copy p { font-size: 16px; }
  .certificates { grid-template-columns: repeat(2, 1fr); gap: 20px; padding: 20px; }
  .certificates li { height: 175px; }
  .partner-row, .partner-row:first-child { gap: 15px; min-height: 100px; }
  .partner-row.four { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px 40px; padding: 12px 20px; }
  .partner-row img, .partner-row.three img { max-height: 40px; }
  .partner-row.three li { padding-bottom: 18px; }
  .footer-inner { grid-template-columns: 1fr; gap: 36px; }
  .footer-brand { grid-column: auto; }
  .site-footer h2 { margin-bottom: 18px; }
  .qr-list { gap: 26px; }
  .qr-list figure { width: 118px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .nav-indicator { transition: none; }
}

@media (hover: hover) and (pointer: fine) {
  .main-nav a:hover { color: #fff; }
  .character-list button:hover span { color: #c94925; }
}