@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@500;600;700;800&family=Noto+Sans+JP:wght@400;500;600;700;800;900&display=swap');

:root {
  --ink: #203147;
  --muted: #5d6872;
  --blue: #2455a5;
  --blue-deep: #123862;
  --blue-soft: #e9f0f8;
  --cream: #fffaf2;
  --paper: #fffdf9;
  --sand: #f5efe4;
  --line: #e5e3dc;
  --yellow: #f7bd53;
  --orange: #e58e59;
  --shadow: 0 20px 50px rgba(27, 46, 65, .09);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', sans-serif; font-size: 15px; line-height: 1.75; -webkit-font-smoothing: antialiased; }
body, button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
figure, p, h1, h2, h3 { margin: 0; }
ul, ol { margin: 0; padding: 0; }
::selection { background: var(--yellow); color: var(--blue-deep); }
:focus-visible { outline: 3px solid var(--orange); outline-offset: 4px; }
[hidden] { display: none !important; }
.container { width: min(1180px, calc(100% - 64px)); margin-inline: auto; }
.skip-link { position: fixed; z-index: 200; top: -60px; left: 16px; padding: 10px 16px; background: var(--blue); color: #fff; border-radius: 8px; }
.skip-link:focus { top: 12px; }

.utility-bar { background: var(--blue-deep); color: #fff; font-size: 11px; letter-spacing: .08em; }
.utility-inner { display: flex; align-items: center; justify-content: space-between; min-height: 34px; gap: 20px; }
.utility-inner a { transition: opacity .2s; white-space: nowrap; }
.utility-inner a:hover { opacity: .7; }
.utility-inner strong { font: 700 13px/1 'DM Sans', sans-serif; letter-spacing: .03em; margin-left: 7px; }
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255, 250, 242, .95); backdrop-filter: blur(16px); border-bottom: 1px solid rgba(32, 49, 71, .07); }
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 82px; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 11px; flex: none; }
.brand-mark { position: relative; width: 45px; height: 45px; display: grid; place-items: center; border-radius: 13px; background: var(--blue); transform: rotate(-7deg); box-shadow: 4px 4px 0 var(--yellow); }
.brand-mark > span { color: #fff; font-size: 25px; font-weight: 900; line-height: 1; transform: rotate(7deg); }
.brand-mark i { position: absolute; width: 7px; height: 7px; border-radius: 50%; background: var(--yellow); top: 5px; right: 5px; }
.brand-copy { display: flex; flex-direction: column; line-height: 1.1; }
.brand-copy strong { font-weight: 900; font-size: 21px; letter-spacing: .07em; }
.brand-copy small { font: 800 9px/1.5 'DM Sans', sans-serif; color: var(--blue); letter-spacing: .18em; margin-top: 4px; }
.site-nav { display: flex; align-items: center; gap: clamp(16px, 2.5vw, 37px); font-size: 13px; font-weight: 700; white-space: nowrap; }
.site-nav > a:not(.nav-cta) { transition: color .2s; }
.site-nav > a:not(.nav-cta):hover { color: var(--blue); }
.nav-cta { display: inline-flex; align-items: center; justify-content: center; gap: 17px; padding: 12px 17px 12px 20px; background: var(--blue); border: 2px solid var(--blue); border-radius: 8px; color: #fff; box-shadow: 4px 4px 0 #d5e1ef; transition: transform .2s, box-shadow .2s, background .2s; }
.nav-cta:hover { transform: translate(2px, 2px); box-shadow: 2px 2px 0 #d5e1ef; background: var(--blue-deep); }
.nav-cta span { font-size: 18px; line-height: 1; }
.menu-toggle { display: none; }

.hero { position: relative; overflow: hidden; padding: 70px 0 88px; background: var(--cream); }
.hero::before { content: ''; position: absolute; right: -12%; top: -36%; width: 58vw; height: 58vw; border-radius: 50%; background: #fef3db; opacity: .7; pointer-events: none; }
.hero::after { content: ''; position: absolute; left: -68px; bottom: 12px; width: 225px; height: 225px; background-image: radial-gradient(#e8d9bb 2px, transparent 2px); background-size: 20px 20px; opacity: .6; mask-image: radial-gradient(circle, #000 42%, transparent 73%); pointer-events: none; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 52% 48%; align-items: center; min-height: 570px; }
.hero-content { position: relative; z-index: 3; padding-bottom: 26px; }
.eyebrow { display: flex; align-items: center; gap: 12px; color: var(--blue); font: 800 12px/1.4 'DM Sans', 'Noto Sans JP', sans-serif; letter-spacing: .2em; }
.hero-eyebrow { width: fit-content; padding: 7px 15px 7px 8px; border: 1px solid #e9dbbf; border-radius: 40px; background: #fffdf8; color: var(--ink); font-family: 'Noto Sans JP', sans-serif; font-size: 12px; letter-spacing: .05em; }
.sparkle { display: grid; place-items: center; width: 25px; height: 25px; border-radius: 50%; background: var(--yellow); color: var(--blue-deep); font-size: 18px; }
.hero h1 { margin-top: 23px; font-size: clamp(48px, 5.35vw, 75px); font-weight: 900; line-height: 1.42; letter-spacing: -.065em; }
.hero h1 span { position: relative; z-index: 0; color: var(--blue); white-space: nowrap; }
.hero h1 span::after { content: ''; position: absolute; z-index: -1; left: 1%; right: -6%; bottom: .02em; height: .19em; border-radius: 100%; background: var(--yellow); transform: rotate(-3deg); }
.hero-lead { margin-top: 26px; font-size: clamp(15px, 1.35vw, 18px); font-weight: 600; line-height: 2; letter-spacing: .02em; }
.hero-actions { display: flex; align-items: center; gap: 34px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 30px; min-height: 58px; padding: 12px 14px 12px 24px; border: 2px solid transparent; border-radius: 9px; font-weight: 800; transition: transform .2s, box-shadow .2s, background .2s; white-space: nowrap; }
.button-primary { min-width: 235px; background: var(--blue); color: #fff; box-shadow: 6px 6px 0 #d8e4ee; }
.button-primary:hover { transform: translate(3px, 3px); box-shadow: 3px 3px 0 #d8e4ee; background: var(--blue-deep); }
.button-arrow { display: grid; place-items: center; flex: none; width: 34px; height: 34px; border-radius: 5px; background: rgba(255, 255, 255, .15); font-family: 'DM Sans', sans-serif; font-size: 21px; line-height: 1; }
.text-link { display: inline-flex; align-items: center; gap: 20px; padding-bottom: 7px; border-bottom: 2px solid var(--blue); color: var(--blue); font-weight: 800; transition: gap .2s; white-space: nowrap; }
.text-link:hover { gap: 26px; }
.text-link span { font-size: 19px; line-height: 1; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px 17px; list-style: none; margin-top: 36px; color: var(--muted); font-size: 12px; font-weight: 700; }
.hero-points li { display: flex; align-items: center; gap: 5px; }
.hero-points span { display: grid; place-items: center; width: 16px; height: 16px; border-radius: 50%; background: var(--yellow); color: var(--blue-deep); font: 800 10px/1 'DM Sans', sans-serif; }
.hero-art { position: relative; height: 570px; margin-left: -12px; }
.hero-art-bg { position: absolute; left: 8%; top: 5%; width: 87%; height: 87%; border-radius: 48% 52% 46% 54%; background: #f5e6c8; transform: rotate(-13deg); }
.hero-art-bg::after { content: ''; position: absolute; inset: 25px; border: 2px dashed rgba(255, 255, 255, .65); border-radius: inherit; }
.hero-photo { position: absolute; z-index: 1; overflow: hidden; border: 9px solid #fff; background: #fff; box-shadow: 0 18px 32px rgba(32, 49, 71, .18); }
.hero-photo img { width: 100%; height: 100%; object-fit: cover; }
.hero-photo-main { left: 1%; top: 10%; width: 75%; height: 55%; border-radius: 10px; transform: rotate(-5deg); }
.hero-photo-small { left: 2%; bottom: 11%; width: 45%; height: 28%; border-radius: 8px; transform: rotate(7deg); }
.hero-sticker { position: absolute; z-index: 2; right: 4%; top: 7%; display: flex; flex-direction: column; align-items: center; justify-content: center; width: 126px; height: 126px; border-radius: 50%; background: var(--yellow); color: var(--blue-deep); text-align: center; box-shadow: 0 12px 25px rgba(35, 46, 55, .1); transform: rotate(12deg); }
.hero-sticker span { font: 800 10px/1.5 'DM Sans', sans-serif; letter-spacing: .04em; }
.hero-sticker strong { font-size: 14px; line-height: 1.5; }
.hero-mascot { position: absolute; z-index: 3; right: -12%; bottom: -19%; width: 61%; height: 91%; object-fit: contain; object-position: center bottom; filter: drop-shadow(0 12px 7px rgba(32, 49, 71, .14)); }
.mascot-bubble { position: absolute; z-index: 4; left: 36%; bottom: 3%; padding: 13px 18px; border: 2px solid var(--ink); border-radius: 16px 16px 4px 16px; background: #fff; box-shadow: 5px 5px 0 var(--yellow); font-size: 12px; line-height: 1.5; transform: rotate(-3deg); white-space: nowrap; }
.mascot-bubble strong { font-size: 14px; }
.bubble-star { position: absolute; right: 11px; top: 5px; color: var(--orange); font-size: 17px; }
.hero-bottom-wave { position: absolute; left: 0; right: 0; bottom: -1px; height: 36px; background: var(--blue-deep); clip-path: polygon(0 52%, 4% 60%, 8% 48%, 12% 54%, 17% 42%, 22% 54%, 27% 38%, 32% 50%, 37% 40%, 42% 48%, 47% 37%, 53% 50%, 59% 40%, 65% 56%, 71% 43%, 77% 57%, 83% 43%, 89% 55%, 95% 43%, 100% 53%, 100% 100%, 0 100%); }
.ticker { overflow: hidden; background: var(--blue-deep); color: #fff; }
.ticker div { width: max-content; padding: 15px 0 17px; font: 800 15px/1 'DM Sans', sans-serif; letter-spacing: .22em; word-spacing: 18px; transform: translateX(-20px); }
.ticker span { color: var(--yellow); margin-inline: 22px; }
.benefits-band { background: #edf3f7; border-bottom: 1px solid #dce7ee; }
.benefits-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.benefit { display: flex; align-items: center; gap: 18px; padding: 26px 30px; }
.benefit:first-child { border-right: 1px solid #d5e1e9; padding-left: 0; }
.benefit:last-child { padding-right: 0; }
.benefit-symbol { flex: none; display: grid; place-items: center; width: 56px; height: 56px; border-radius: 15px; background: var(--blue); color: #fff; font: 800 29px/1 'DM Sans', sans-serif; transform: rotate(-6deg); }
.benefit:last-child .benefit-symbol { background: var(--yellow); color: var(--blue-deep); }
.benefit-label { color: var(--blue); font: 800 10px/1 'DM Sans', sans-serif; letter-spacing: .16em; }
.benefit strong { display: block; margin-top: 5px; font-size: 16px; font-weight: 900; letter-spacing: -.02em; }
.benefit strong em { color: var(--blue); font-style: normal; }
.benefit small { display: block; margin-top: 1px; color: var(--muted); font-size: 11px; }

.section { padding: 116px 0; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 32px; margin-bottom: 38px; }
.section-heading h2, .features-intro h2, .faq-aside h2 { margin-top: 14px; font-size: clamp(31px, 3.2vw, 43px); font-weight: 900; line-height: 1.45; letter-spacing: -.045em; }
.title-dot { color: var(--yellow); }
.section-heading > p { max-width: 360px; padding-bottom: 4px; color: var(--muted); font-size: 14px; line-height: 1.9; }
.section-kicker-line { display: inline-block; width: 24px; height: 2px; background: var(--blue); }
.products-section { background: var(--paper); }
.product-filters { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 25px; }
.filter-button { display: inline-flex; align-items: center; gap: 10px; padding: 10px 17px; border: 1px solid #dde2e6; border-radius: 30px; background: #fff; color: var(--muted); font-size: 12px; font-weight: 800; cursor: pointer; transition: background .2s, color .2s, border-color .2s; }
.filter-button span { font: 700 11px/1 'DM Sans', sans-serif; opacity: .65; }
.filter-button:hover, .filter-button.is-active { border-color: var(--blue); background: var(--blue); color: #fff; }
.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.product-card { position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: 12px; background: #fff; transition: transform .25s, box-shadow .25s, border-color .25s; }
.product-card:hover { transform: translateY(-5px); border-color: #cad9e8; box-shadow: var(--shadow); }
.product-image { position: relative; height: 210px; overflow: hidden; background: var(--blue-soft); }
.product-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.product-image img.product-image-calp { object-position: center 34%; }
.product-image img.product-image-plate { object-position: 40% center; }
.product-card:hover .product-image img { transform: scale(1.045); }
.product-tag { position: absolute; top: 13px; left: 13px; padding: 6px 10px; border-radius: 4px; background: var(--yellow); color: var(--blue-deep); font-size: 11px; font-weight: 900; }
.product-body { position: relative; min-height: 166px; padding: 18px 60px 22px 21px; }
.product-no { display: block; color: var(--blue); font: 800 10px/1.35 'DM Sans', sans-serif; letter-spacing: .12em; }
.product-body h3 { margin-top: 9px; font-size: 19px; font-weight: 900; letter-spacing: -.02em; }
.product-body p { margin-top: 7px; color: var(--muted); font-size: 12px; line-height: 1.7; }
.product-arrow { position: absolute; right: 19px; bottom: 22px; display: grid; place-items: center; width: 35px; height: 35px; border: 1px solid #cbd9e8; border-radius: 50%; color: var(--blue); font: 700 20px/1 'DM Sans', sans-serif; transition: background .2s, color .2s; }
.product-card:hover .product-arrow { background: var(--blue); color: #fff; }
.product-footnote { margin-top: 23px; color: #75808a; font-size: 11px; }

.works-section { padding: 112px 0 103px; background: var(--blue-deep); color: #fff; }
.section-heading-light .eyebrow { color: #f1c567; }
.section-heading-light .section-kicker-line { background: #f1c567; }
.section-heading-light > p { color: #c1cfda; }
.works-grid { display: grid; grid-template-columns: 1.08fr .92fr; grid-template-rows: repeat(2, 260px); gap: 20px; }
.work-card { position: relative; overflow: hidden; border-radius: 10px; background: #274766; }
.work-card::after { content: ''; position: absolute; inset: 40% 0 0; background: linear-gradient(transparent, rgba(7, 23, 37, .8)); pointer-events: none; }
.work-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.work-card:hover img { transform: scale(1.045); }
.work-card-tall { grid-row: span 2; }
.work-card figcaption { position: absolute; z-index: 1; left: 27px; bottom: 23px; right: 20px; display: flex; flex-direction: column; align-items: flex-start; gap: 5px; }
.work-card figcaption span { padding: 2px 8px; border: 1px solid rgba(255, 255, 255, .75); border-radius: 30px; font-size: 10px; font-weight: 700; }
.work-card figcaption strong { font-size: 20px; font-weight: 900; letter-spacing: -.02em; }
.works-note { margin-top: 18px; text-align: right; color: #bdcbd6; font-size: 11px; }

.features-section { background: var(--cream); }
.features-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(45px, 9vw, 130px); align-items: center; }
.features-intro h2 { margin-top: 18px; font-size: clamp(35px, 3.6vw, 48px); }
.features-intro h2 span { color: var(--blue); }
.features-intro > p:not(.eyebrow) { margin-top: 24px; color: var(--muted); font-size: 14px; line-height: 2.05; }
.features-intro .text-link { margin-top: 30px; font-size: 13px; }
.feature-list { border-top: 1px solid #d9dfdf; }
.feature-item { display: flex; gap: 23px; padding: 29px 0; border-bottom: 1px solid #d9dfdf; }
.feature-icon { flex: none; display: grid; place-items: center; width: 56px; height: 56px; border-radius: 15px; color: var(--blue-deep); font: 800 17px/1 'DM Sans', sans-serif; transform: rotate(-5deg); }
.feature-icon-blue { background: #d7e7f4; }
.feature-icon-yellow { background: #fce4ad; }
.feature-icon-orange { background: #f4d9c7; }
.feature-item h3 { margin-top: 1px; font-size: 18px; font-weight: 900; }
.feature-item p { margin-top: 7px; color: var(--muted); font-size: 13px; line-height: 1.8; }

.flow-section { padding: 112px 0 100px; background: #eef4f8; }
.flow-heading { margin-bottom: 40px; }
.flow-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 15px; list-style: none; }
.flow-list li { position: relative; min-height: 245px; padding: 21px 20px 22px; border: 1px solid #e0e9ee; border-radius: 10px; background: #fff; }
.flow-list li:not(:last-child)::after { content: '→'; position: absolute; z-index: 2; top: 44px; right: -16px; display: grid; place-items: center; width: 29px; height: 29px; border-radius: 50%; background: var(--blue); color: #fff; font: 700 18px/1 'DM Sans', sans-serif; }
.flow-number { color: var(--blue); font: 800 13px/1 'DM Sans', sans-serif; letter-spacing: .1em; }
.flow-icon { display: grid; place-items: center; width: 56px; height: 56px; margin-top: 18px; border-radius: 50%; background: #e6f0f9; color: var(--blue); font-size: 27px; font-weight: 700; line-height: 1; }
.flow-list h3 { margin-top: 17px; font-size: 16px; font-weight: 900; }
.flow-list p { margin-top: 7px; color: var(--muted); font-size: 12px; line-height: 1.8; }
.flow-footer { display: flex; justify-content: space-between; align-items: center; gap: 24px; margin-top: 28px; }
.flow-footer p { color: var(--muted); font-size: 12px; line-height: 1.85; }
.flow-footer small { font-size: 11px; }
.flow-footer .text-link { font-size: 12px; }

.faq-section { background: var(--paper); }
.faq-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: clamp(50px, 8vw, 120px); }
.faq-aside h2 { margin-top: 18px; }
.faq-mascot-wrap { position: relative; width: 240px; height: 240px; margin-top: 24px; border-radius: 50%; background: #f7e6c7; overflow: hidden; }
.faq-mascot-wrap img { width: 240px; max-width: none; height: 360px; object-fit: contain; object-position: center top; transform: translateY(-12px); }
.faq-mascot-wrap span { position: absolute; bottom: 17px; right: 13px; padding: 5px 10px; border-radius: 30px; background: #fff; color: var(--blue); font-size: 10px; font-weight: 800; transform: rotate(-5deg); }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; align-items: center; gap: 17px; min-height: 81px; padding: 17px 4px; list-style: none; cursor: pointer; font-size: 15px; font-weight: 800; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-q { flex: none; display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: #e7eff8; color: var(--blue); font: 800 16px/1 'DM Sans', sans-serif; }
.faq-plus { position: relative; flex: none; width: 24px; height: 24px; margin-left: auto; border-radius: 50%; background: var(--blue); }
.faq-plus::before, .faq-plus::after { content: ''; position: absolute; top: 50%; left: 50%; width: 9px; height: 2px; border-radius: 2px; background: #fff; transform: translate(-50%, -50%); }
.faq-plus::after { transform: translate(-50%, -50%) rotate(90deg); transition: transform .2s; }
.faq-list details[open] .faq-plus::after { transform: translate(-50%, -50%) rotate(0); }
.faq-list details > p { padding: 0 44px 26px 55px; color: var(--muted); font-size: 13px; line-height: 1.9; }
.faq-list details > p a { color: var(--blue); text-decoration: underline; text-underline-offset: 3px; }

.contact-section { padding: 0 0 104px; background: var(--paper); }
.contact-panel { position: relative; overflow: hidden; display: flex; justify-content: space-between; align-items: center; gap: 30px; min-height: 330px; padding: 52px clamp(42px, 7vw, 90px); border-radius: 18px; background: var(--blue); color: #fff; }
.contact-panel::after { content: ''; position: absolute; right: -40px; bottom: -95px; width: 290px; height: 290px; border: 2px solid rgba(255, 255, 255, .2); border-radius: 50%; box-shadow: 0 0 0 40px rgba(255, 255, 255, .04), 0 0 0 80px rgba(255, 255, 255, .03); pointer-events: none; }
.contact-decoration { position: absolute; top: -60px; left: 46%; color: rgba(255, 255, 255, .08); font-size: 280px; line-height: 1; pointer-events: none; }
.contact-copy, .contact-actions { position: relative; z-index: 1; }
.contact-copy .eyebrow { color: #f9d98b; }
.contact-copy h2 { margin-top: 13px; font-size: clamp(28px, 3vw, 42px); font-weight: 900; line-height: 1.5; letter-spacing: -.045em; }
.contact-copy > p:last-child { margin-top: 18px; font-size: 13px; line-height: 1.9; }
.contact-actions { display: flex; flex-direction: column; align-items: flex-start; gap: 18px; min-width: 260px; }
.button-white { min-width: 260px; background: #fff; color: var(--blue); box-shadow: 6px 6px 0 rgba(255, 255, 255, .2); }
.button-white:hover { transform: translate(3px, 3px); box-shadow: 3px 3px 0 rgba(255, 255, 255, .2); }
.button-white .button-arrow { background: #e7eff7; }
.contact-actions > a:not(.button) { padding-bottom: 4px; border-bottom: 1px solid rgba(255, 255, 255, .6); font-size: 13px; font-weight: 800; }
.contact-actions > a:not(.button) span { margin-left: 11px; }
.contact-actions small { color: #d5e3f0; font-size: 11px; }

.site-footer { padding: 75px 0 25px; background: #142c43; color: #fff; }
.footer-main { display: flex; justify-content: space-between; gap: 70px; padding-bottom: 60px; }
.footer-brand .brand-mark { width: 42px; height: 42px; }
.footer-brand .brand-copy small { color: #b9d5f0; }
.footer-main > div:first-child > p { margin-top: 29px; color: #bbcad6; font-size: 12px; line-height: 1.85; }
.footer-main address { margin-top: 17px; color: #bbcad6; font-size: 12px; font-style: normal; line-height: 1.85; }
.footer-links { display: flex; gap: clamp(50px, 7vw, 95px); padding-top: 4px; }
.footer-links > div { display: flex; flex-direction: column; align-items: flex-start; gap: 9px; }
.footer-links strong { margin-bottom: 9px; font-size: 13px; }
.footer-links a { color: #bbcad6; font-size: 12px; transition: color .2s; }
.footer-links a:hover, .footer-bottom a:hover { color: #fff; }
.footer-links.footer-links-unified { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); flex: 1; max-width: 600px; min-width: 0; gap: clamp(20px, 3vw, 48px); }
.footer-links-unified > div { min-width: 0; }
.footer-links-unified a { overflow-wrap: anywhere; line-height: 1.8; }
@media (max-width: 850px) {
  .footer-main:has(> .footer-links-unified) { flex-direction: column; }
  .footer-links.footer-links-unified { width: 100%; max-width: none; }
}
@media (max-width: 640px) {
  .footer-links.footer-links-unified { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 20px; }
  .footer-links-unified > div:last-child { grid-column: 1 / -1; }
}
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, .15); color: #a3b7c7; font: 500 11px/1.6 'DM Sans', 'Noto Sans JP', sans-serif; }
.footer-bottom > div { display: flex; flex-wrap: wrap; gap: 22px; }

.subpage-hero { position: relative; overflow: hidden; padding: 46px 0 80px; background: var(--cream); }
.subpage-hero::after { content: ''; position: absolute; right: -50px; top: -170px; width: 500px; height: 500px; border-radius: 50%; background: #f8e8c8; opacity: .6; pointer-events: none; }
.subpage-hero .container { position: relative; z-index: 1; }
.breadcrumb { display: flex; gap: 14px; margin-bottom: 57px; color: var(--muted); font: 700 11px/1 'DM Sans', 'Noto Sans JP', sans-serif; letter-spacing: .06em; }
.breadcrumb a { color: var(--blue); }
.subpage-hero h1 { margin-top: 15px; font-size: clamp(39px, 5vw, 62px); font-weight: 900; letter-spacing: -.05em; }
.subpage-hero .container > p:last-child { margin-top: 12px; color: var(--muted); font-size: 15px; line-height: 1.9; }
.company-section { background: var(--paper); }
.company-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(50px, 9vw, 130px); }
.company-intro h2 { margin-top: 17px; font-size: clamp(32px, 3vw, 44px); font-weight: 900; line-height: 1.5; letter-spacing: -.045em; }
.company-intro h2 span { color: var(--blue); }
.company-intro > p:not(.eyebrow) { margin-top: 24px; color: var(--muted); font-size: 14px; line-height: 2; }
.company-intro .button { margin-top: 32px; }
.company-details { padding: 36px 40px; border: 1px solid var(--line); border-radius: 13px; background: #fff; box-shadow: var(--shadow); }
.company-details h2 { margin-bottom: 14px; font-size: 22px; font-weight: 900; }
.company-details dl { margin: 0; }
.company-details dl > div { display: grid; grid-template-columns: 155px 1fr; gap: 22px; padding: 15px 0; border-bottom: 1px solid var(--line); font-size: 13px; }
.company-details dl > div:last-child { border-bottom: 0; }
.company-details dt { color: var(--muted); font-weight: 700; }
.company-details dd { margin: 0; font-weight: 600; overflow-wrap: anywhere; }
.company-details dd a { color: var(--blue); text-decoration: underline; text-underline-offset: 3px; }
.company-links-section { padding: 0 0 100px; }
.company-links { display: flex; justify-content: space-between; align-items: center; gap: 30px; padding: 41px 55px; border-radius: 15px; background: var(--blue); color: #fff; }
.company-links .eyebrow { color: #f9d98b; }
.company-links h2 { margin-top: 7px; font-size: clamp(23px, 2.5vw, 33px); font-weight: 900; }
.company-links p:last-child { margin-top: 6px; font-size: 12px; }

@media (max-width: 1050px) {
  .site-nav { gap: 15px; font-size: 12px; }
  .nav-cta { padding: 10px 12px; gap: 7px; }
  .hero-grid { grid-template-columns: 54% 46%; }
  .hero-art { margin-left: -25px; }
  .hero-mascot { right: -10%; width: 63%; }
  .mascot-bubble { left: 27%; }
}

@media (max-width: 850px) {
  .container { width: min(100% - 44px, 680px); }
  .utility-bar { display: none; }
  .header-inner { min-height: 70px; }
  .brand-mark { width: 41px; height: 41px; }
  .brand-copy strong { font-size: 19px; }
  .menu-toggle { position: relative; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px; width: 44px; height: 44px; border: 0; border-radius: 8px; background: var(--blue); cursor: pointer; }
  .menu-toggle span { width: 20px; height: 2px; border-radius: 2px; background: #fff; transition: transform .2s, opacity .2s; }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(7px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-7px) rotate(-45deg); }
  .site-nav { position: absolute; top: 69px; left: 0; right: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 12px 22px 24px; border-top: 1px solid var(--line); background: var(--cream); box-shadow: 0 18px 30px rgba(20, 44, 67, .12); white-space: normal; }
  .site-nav.is-open { display: flex; }
  .site-nav > a:not(.nav-cta) { padding: 13px 4px; border-bottom: 1px solid var(--line); font-size: 14px; }
  .nav-cta { margin-top: 15px; font-size: 14px; }
  .hero { padding: 65px 0 75px; }
  .hero-grid { display: flex; flex-direction: column; align-items: stretch; }
  .hero-content { padding-bottom: 0; }
  .hero h1 { font-size: clamp(45px, 8vw, 70px); }
  .hero-art { width: min(100%, 590px); height: 490px; margin: 35px auto 0; }
  .hero-mascot { right: -5%; bottom: -15%; width: 56%; height: 88%; }
  .hero-photo-main { width: 72%; }
  .hero-photo-small { bottom: 8%; }
  .section, .works-section, .flow-section { padding: 82px 0; }
  .benefit { padding: 24px 16px; gap: 12px; }
  .benefit:first-child { padding-left: 0; }
  .benefit:last-child { padding-right: 0; }
  .benefit-symbol { width: 46px; height: 46px; font-size: 23px; }
  .benefit strong { font-size: 13px; }
  .section-heading { align-items: flex-start; }
  .section-heading > p { max-width: 260px; }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .works-grid { grid-template-rows: repeat(2, 230px); }
  .features-layout { grid-template-columns: 1fr; gap: 40px; }
  .features-intro { max-width: 520px; }
  .flow-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
  .flow-list li { min-height: 220px; }
  .flow-list li:not(:last-child)::after { display: none; }
  .faq-layout { grid-template-columns: 1fr; gap: 36px; }
  .faq-aside { display: flex; flex-direction: column; align-items: flex-start; }
  .faq-mascot-wrap { display: none; }
  .contact-panel { padding: 45px; }
  .contact-copy h2 { font-size: 32px; }
  .contact-actions, .button-white { min-width: 220px; }
  .footer-main { gap: 35px; }
  .footer-links { gap: 35px; }
  .company-layout { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 640px) {
  html { scroll-padding-top: 72px; }
  .container { width: calc(100% - 36px); }
  .hero { padding: 49px 0 68px; }
  .hero-eyebrow { font-size: 10px; }
  .hero h1 { margin-top: 20px; font-size: clamp(39px, 9.8vw, 61px); line-height: 1.38; }
  .hero-lead { margin-top: 23px; font-size: 14px; line-height: 1.9; }
  .hero-actions { gap: 19px; margin-top: 27px; }
  .button-primary { min-width: 0; padding-left: 16px; gap: 10px; font-size: 13px; }
  .hero-actions .text-link { gap: 8px; font-size: 12px; }
  .hero-points { margin-top: 26px; gap: 7px 12px; font-size: 10px; }
  .hero-art { height: 390px; margin-top: 25px; }
  .hero-art-bg { left: 9%; top: 5%; height: 88%; }
  .hero-photo { border-width: 6px; }
  .hero-photo-main { top: 9%; width: 76%; height: 55%; }
  .hero-photo-small { left: 0; bottom: 10%; width: 43%; height: 28%; }
  .hero-mascot { width: 59%; height: 92%; right: -7%; bottom: -20%; }
  .hero-sticker { width: 87px; height: 87px; top: 6%; right: 0; }
  .hero-sticker span { font-size: 7px; }
  .hero-sticker strong { font-size: 10px; }
  .mascot-bubble { left: 25%; bottom: 1%; padding: 8px 10px; font-size: 10px; }
  .mascot-bubble strong { font-size: 11px; }
  .ticker div { font-size: 12px; padding: 12px 0 14px; }
  .benefits-grid { grid-template-columns: 1fr; }
  .benefit { padding: 17px 0; }
  .benefit:first-child { border-right: 0; border-bottom: 1px solid #d5e1e9; }
  .benefit strong { font-size: 14px; }
  .section, .works-section, .flow-section { padding: 72px 0; }
  .section-heading { flex-direction: column; align-items: flex-start; gap: 13px; margin-bottom: 25px; }
  .section-heading h2, .features-intro h2, .faq-aside h2 { font-size: clamp(28px, 7.5vw, 38px); }
  .section-heading > p { max-width: none; font-size: 12px; }
  .product-filters { gap: 7px; margin-bottom: 20px; }
  .filter-button { padding: 7px 12px; font-size: 11px; }
  .product-grid { gap: 12px; }
  .product-image { height: 130px; }
  .product-body { min-height: 153px; padding: 13px 14px 45px; }
  .product-no { font-size: 8px; }
  .product-body h3 { margin-top: 7px; font-size: 14px; line-height: 1.4; }
  .product-body p { margin-top: 5px; font-size: 10px; line-height: 1.55; }
  .product-arrow { right: 12px; bottom: 10px; width: 28px; height: 28px; font-size: 16px; }
  .product-tag { top: 8px; left: 8px; padding: 3px 6px; font-size: 9px; }
  .product-footnote { font-size: 10px; }
  .works-grid { display: flex; flex-direction: column; gap: 12px; }
  .work-card, .work-card-tall { height: 260px; }
  .work-card figcaption { left: 17px; bottom: 17px; }
  .work-card figcaption strong { font-size: 16px; }
  .works-note { text-align: left; }
  .features-intro > p:not(.eyebrow) { font-size: 13px; }
  .feature-item { gap: 15px; padding: 23px 0; }
  .feature-icon { width: 49px; height: 49px; }
  .feature-item h3 { font-size: 16px; }
  .feature-item p { font-size: 12px; }
  .flow-list { gap: 10px; }
  .flow-list li { min-height: 228px; padding: 15px 12px; }
  .flow-icon { margin-top: 13px; width: 43px; height: 43px; font-size: 22px; }
  .flow-list h3 { margin-top: 14px; font-size: 13px; }
  .flow-list p { font-size: 10px; }
  .flow-footer { align-items: flex-start; flex-direction: column; margin-top: 23px; }
  .flow-footer p { font-size: 11px; }
  .faq-list summary { gap: 10px; min-height: 70px; font-size: 13px; }
  .faq-q { width: 29px; height: 29px; font-size: 14px; }
  .faq-list details > p { padding: 0 25px 23px 41px; font-size: 12px; }
  .contact-section { padding-bottom: 72px; }
  .contact-panel { display: block; padding: 35px 25px 37px; border-radius: 13px; }
  .contact-copy h2 { font-size: clamp(26px, 7vw, 34px); }
  .contact-copy > p:last-child { font-size: 12px; }
  .contact-actions { margin-top: 24px; }
  .button-white { width: 100%; }
  .site-footer { padding-top: 60px; }
  .footer-main { flex-direction: column; gap: 40px; padding-bottom: 40px; }
  .footer-links { justify-content: space-between; gap: 20px; }
  .footer-bottom { align-items: flex-start; flex-direction: column; gap: 12px; }
  .subpage-hero { padding: 30px 0 65px; }
  .breadcrumb { margin-bottom: 43px; }
  .subpage-hero .container > p:last-child { font-size: 13px; }
  .company-details { padding: 25px 20px; }
  .company-details dl > div { grid-template-columns: 105px 1fr; gap: 12px; font-size: 12px; }
  .company-links-section { padding-bottom: 72px; }
  .company-links { flex-direction: column; align-items: stretch; padding: 30px 25px; }
}

@media (max-width: 380px) {
  .hero h1 { font-size: 37px; }
  .hero-actions { gap: 12px; }
  .button-primary { font-size: 12px; }
  .button-arrow { width: 27px; height: 27px; }
  .hero-art { height: 350px; }
  .product-body h3 { font-size: 13px; }
  .product-body p { font-size: 9px; }
}

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

/* Secondary CTA: shared product installation guides. */
.button.button-guide { width: fit-content; min-width: 0; max-width: 450px; min-height: 56px; gap: 16px; padding: 12px 20px; border-color: var(--blue); background: var(--blue-soft); color: var(--blue); box-shadow: 0 3px 8px rgba(32, 49, 71, .08); font-size: 15px; line-height: 1.65; text-align: left; white-space: normal; transition: transform .2s, box-shadow .2s, background .2s, border-color .2s; }
.button.button-guide > span[aria-hidden="true"] { flex: none; }
.button.button-guide:hover { transform: translateY(-1px); border-color: var(--blue-deep); background: #dce8f5; box-shadow: 0 4px 10px rgba(32, 49, 71, .1); }
@media (max-width: 640px) {
  .button.button-guide { width: 100%; max-width: 100%; padding-inline: 14px; gap: 12px; font-size: 14px; }
}
@media (prefers-reduced-motion: reduce) {
  .button.button-guide:hover { transform: none; }
}