/* AI Expert（ai-expert.jp トップ）の模写。寸法は2026-10-04に本番ページから計測（PC 1440px / SP 375px） */
:root {
  --blue: #0B42DB;
  --black: #0F0F0F;
  --bg: #F2F3F3;
  --white: #fff;
  --en: "Work Sans", sans-serif;
  --jp: "Noto Sans JP", sans-serif;
  /* 本番はSTUDIO提供の「こぶりなゴシック W6」。ライセンス上外部から読めないため近い字形で代替 */
  --kob: "こぶりなゴシック W6 JIS2004", "Koburina Gothic W6", "Zen Kaku Gothic New", "Noto Sans JP", sans-serif;
  --grad: linear-gradient(270deg, #0F0F0F 0%, #0B42DB 100%);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body { margin: 0; background: var(--bg); color: var(--black); font-family: var(--jp); font-feature-settings: "palt"; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { display: block; max-width: 100%; }
picture { display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p, ul, ol, figure { margin: 0; padding: 0; }
ul, ol { list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
.sp { display: none; }

.w920 { width: min(920px, calc(100% - 48px)); margin-inline: auto; }
.w1160 { width: min(1160px, calc(100% - 48px)); margin-inline: auto; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- 見出し（英字＋和文） ---------- */
.ttl-en { font-family: var(--en); font-weight: 700; font-size: 54px; line-height: 1.2; letter-spacing: .02em; }
.ttl-ja { font-family: var(--jp); font-weight: 900; font-size: 16px; line-height: 1; letter-spacing: .02em; margin-top: 4px; }
.ttl-center { text-align: center; }
.ttl-center .ttl-en { display: inline-block; }
.ttl-white { color: var(--white); }

/* ---------- ヘッダー（固定） ---------- */
.hd { position: fixed; inset: 0 0 auto 0; height: 96px; z-index: 50; display: flex; align-items: center; padding: 0 40px 0 60px; pointer-events: none; }
.hd > * { pointer-events: auto; }
.hd-logo { width: 158px; }
.hd-nav { position: absolute; left: 50%; top: 26px; transform: translateX(-50%); height: 45px; display: flex; align-items: center; gap: 22px; padding: 0 32px; background: rgba(255,255,255,.898); border-radius: 10px; }
.hd-nav a { font-size: 13px; font-weight: 700; letter-spacing: .02em; line-height: 1; white-space: nowrap; }
.hd-nav a:hover { color: var(--blue); }
.hd-cta { margin-left: auto; height: 48px; padding: 0 30px 0 26px; display: flex; align-items: center; gap: 8px; background: var(--blue); color: var(--white); border-radius: 50px; box-shadow: 0 4px 12px rgba(0,0,0,.16); font-size: 14px; font-weight: 700; letter-spacing: .06em; }
.hd-cta:hover { opacity: .85; }
.hd-burger { display: none; }
.sp-menu { display: none; }

/* ---------- 資料ダウンロード（右下固定） ---------- */
.dl { position: fixed; right: 0; bottom: 18px; width: 240px; z-index: 40; display: block; }
.dl-thumb { width: 240px; height: 124px; margin-bottom: -32px; pointer-events: none; }
.dl-box { position: relative; display: block; height: 85px; padding: 20px 0 0 32px; background: var(--blue); color: var(--white); border-radius: 14px 0 0 14px; box-shadow: 0 0 14px rgba(0,0,0,.18); }
.dl-lead { display: flex; align-items: baseline; gap: 0; font-size: 13px; font-weight: 700; line-height: 1; }
.dl-lead b { font-family: var(--en); font-weight: 600; font-size: 15px; }
.dl-lead b + b, .dl-lead b:last-child { margin-left: 5px; }
.dl-main { display: block; margin-top: 7px; font-size: 18px; font-weight: 700; letter-spacing: .08em; line-height: 1.3; }
.dl-ic { position: absolute; right: 18px; top: 31px; }

/* ---------- FV ---------- */
.fv { position: relative; padding-top: 80px; }
.fv-talents { position: relative; z-index: 1; overflow: hidden; }
.marquee-track { display: flex; width: max-content; animation: marquee 80s linear infinite; }
.talent-set { display: flex; gap: 48px; padding-right: 48px; }
.talent { position: relative; width: 240px; height: 381px; flex: none; }
.talent img { width: 100%; height: 100%; object-fit: cover; }
.talent figcaption { position: absolute; inset: auto 0 0 0; height: 60px; padding: 16px 16px 0; background: linear-gradient(rgba(0,0,0,0), #000); color: var(--white); text-align: center; }
.talent b { display: block; font-family: var(--en); font-weight: 700; font-size: 12px; line-height: 1; letter-spacing: .04em; }
.talent span { display: block; margin-top: 6px; font-size: 10px; line-height: 1; letter-spacing: .02em; white-space: nowrap; }
@keyframes marquee { to { transform: translateX(-50%); } }

.fv-body { position: relative; }
.fv-lines { position: absolute; left: 0; right: 0; top: -263px; pointer-events: none; }
.fv-lines img { width: 100%; }
.fv-inner { position: relative; width: min(1160px, calc(100% - 48px)); margin: 0 auto; padding-top: 49px; height: 424px; }
.fv-title { font-weight: 400; }
.fv-l1, .fv-l2 { display: block; font-feature-settings: normal; font-family: var(--kob); font-weight: 700; font-size: 80px; line-height: 80px; white-space: nowrap; }
.fv-l1 { display: flex; align-items: flex-end; padding-left: 12px; }
.fv-l1 .grad { letter-spacing: -.09em; }
.fv-ai { font-family: var(--en); font-weight: 500; font-size: 91px; line-height: 91px; letter-spacing: -.02em; color: var(--blue); margin-bottom: -6px; }
.fv-l2 { margin-top: 21px; letter-spacing: -.1em; width: max-content; }
.fv-sub { margin-top: 32px; padding-left: 10px; font-size: 17px; font-weight: 700; line-height: 1.5; letter-spacing: .05em; }
.fv-sub br { display: none; }
.fv-badges { position: absolute; left: 643px; top: 174px; display: flex; gap: 8px; }
.badge { width: 120px; height: 120px; border-radius: 50%; background: var(--white); color: var(--blue); display: flex; flex-direction: column; align-items: center; justify-content: center; padding-bottom: 8px; }
.badge-label { font-size: 14px; font-weight: 700; letter-spacing: .02em; line-height: 1; display: flex; align-items: baseline; }
.badge-label em { font-style: normal; font-family: var(--en); font-weight: 600; font-size: 16px; letter-spacing: .02em; }
.badge-num { display: flex; align-items: baseline; margin-top: 2px; font-family: var(--en); font-weight: 700; line-height: 1; }
.badge-num b { font-size: 36px; }
.badge-num b.b5 { font-size: 34px; }
.badge-num small { font-size: 26px; }
.badge-unit { font-family: var(--jp); font-size: 18px; letter-spacing: -.04em; }
.fv-en { position: absolute; right: -20px; top: 56px; width: 220px; text-align: right; font-family: var(--en); font-size: 10px; line-height: 15px; letter-spacing: -.02em; color: rgba(15,15,15,.4); }
.what { position: absolute; left: 0; right: 0; top: 294px; overflow: hidden; pointer-events: none; }
.what-track { display: flex; width: max-content; gap: 16px; animation: marquee 40s linear infinite; }
.what-track span { font-family: var(--en); font-weight: 500; font-size: 130px; line-height: 130px; color: var(--white); white-space: nowrap; }

/* ---------- ABOUT ---------- */
.about { position: relative; padding-top: 63px; }
.about-head { display: flex; gap: 40px; }
.ttl-left { flex: none; width: 192px; }
.ttl-left .ttl-en { display: inline-block; }
.about-text { font-size: 18px; font-weight: 700; line-height: 2.4; letter-spacing: .02em; }
.about-text p + p { margin-top: 43px; }
.about-diagram { width: min(920px, calc(100% - 48px)); margin: 100px auto 0; }
.about-diagram img { width: 100%; height: auto; }
.about-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 5px; margin-top: 140px; }
.card { position: relative; background: var(--white); border-radius: 14px; padding: 28px 24px 28px; min-height: 218px; }
.card img { position: absolute; left: 24px; top: -20px; }
.card h3 { font-size: 18px; font-weight: 700; line-height: 1.4; letter-spacing: .02em; min-height: 50px; }
.card p { margin-top: 14px; font-size: 14px; line-height: 1.4; letter-spacing: .05em; }

/* ---------- 黒地セクション共通 ---------- */
.dark { position: relative; z-index: 2; background: var(--black); color: var(--white); border-radius: 60px; overflow: hidden; }
.lines { position: absolute; left: 0; right: 0; pointer-events: none; }
.lines img { width: 100%; }

/* ---------- FEATURES ---------- */
.features { margin-top: 141px; padding: 135px 0 139px; }
.lines-a { top: 287px; }
.lines-b { top: 1042px; }
.feat-list { position: relative; width: min(980px, calc(100% - 48px)); margin: 94px auto 0; display: flex; flex-direction: column; }
.feat { width: 460px; }
.feat-2 { align-self: flex-end; margin-top: -251px; }
.feat-3 { margin-top: -205px; margin-left: -60px; }
.feat-no { font-family: var(--en); font-weight: 700; font-size: 20px; line-height: 1; color: var(--blue); }
.feat h3 { margin-top: 8px; font-family: var(--kob); font-weight: 700; font-size: 32px; line-height: 1.3; letter-spacing: -.04em; }
.feat-body { margin-top: 16px; font-size: 16px; line-height: 1.6; letter-spacing: .05em; }
.feat picture { margin-top: 32px; }
.feat img { width: 460px; height: 320px; object-fit: cover; }

/* ---------- 専門家（青地） ---------- */
.experts { position: relative; z-index: 1; margin-top: -60px; padding: 181px 0 119px; background: var(--blue); color: var(--white); border-radius: 0 0 60px 60px; text-align: center; }
.experts-glow { position: absolute; left: 50%; top: -160px; width: 960px; transform: translateX(-50%); pointer-events: none; }
.experts-pill { display: inline-block; padding: 11px 22px; border: 2px solid var(--white); border-radius: 40px; font-size: 18px; font-weight: 700; line-height: 1.4; letter-spacing: .05em; position: relative; }
.experts-title { position: relative; margin-top: 20px; font-family: var(--kob); font-weight: 700; font-size: 34px; line-height: 1.3; letter-spacing: -.02em; }
.roles { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; margin-top: 50px; }
.role { background: var(--white); color: var(--black); border-radius: 16px; padding: 30px 20px 30px; min-height: 314px; }
.role-ring { display: block; width: 108px; height: 108px; margin: 0 auto; border: 2px solid var(--blue); border-radius: 50%; padding: 2px; }
.role-ring img { width: 100px; height: 100px; border-radius: 50%; object-fit: cover; background: var(--white); }
.role h3 { margin-top: 24px; font-size: 24px; font-weight: 700; line-height: 1.4; letter-spacing: .02em; }
.tags { margin-top: 20px; display: flex; flex-wrap: wrap; justify-content: center; gap: 4px; }
.tags li { height: 32px; display: flex; align-items: center; padding: 0 16px; background: var(--blue); color: var(--white); border-radius: 10px; font-size: 14px; line-height: 1; }

/* ---------- CASES ---------- */
.cases { padding-top: 137px; text-align: center; }
.slider { position: relative; margin-top: 104px; overflow: hidden; height: 421px; text-align: left; }
.slider-track { display: flex; gap: 40px; width: max-content; transition: transform .5s ease; }
.case { width: 340px; flex: none; display: block; }
.case-thumb { width: 340px; height: 226px; object-fit: cover; border-radius: 8px; }
.case h3 { margin-top: 17px; font-family: var(--kob); font-weight: 700; font-size: 24px; line-height: 1.3; letter-spacing: -.02em; }
.case-date { margin-top: 11px; font-family: var(--en); font-size: 14px; line-height: 1; color: rgba(15,15,15,.4); }
.case-tags { margin-top: 24px; display: flex; gap: 4px; }
.case-tags li { height: 34px; display: flex; align-items: center; padding: 0 18px; background: var(--white); border: 1px solid rgba(15,15,15,.1); border-radius: 30px; font-size: 14px; }
.slider-fade { position: absolute; top: 0; bottom: 0; width: 90px; z-index: 1; pointer-events: none; }
.slider-fade-l { left: 0; background: linear-gradient(90deg, #F0F0F0, rgba(240,240,240,0)); }
.slider-fade-r { right: 0; background: linear-gradient(270deg, #F0F0F0, rgba(240,240,240,0)); }
.slider-btn { position: absolute; top: 87px; z-index: 2; width: 54px; height: 54px; }
.slider-btn img { width: 100%; height: 100%; }
.slider-prev { left: 24px; }
.slider-next { right: 24px; }
.btn-black { display: inline-flex; align-items: center; justify-content: center; width: 480px; max-width: calc(100% - 48px); height: 69px; margin-top: 99px; background: var(--black); color: var(--white); border-radius: 50px; box-shadow: 0 4px 12px rgba(0,0,0,.16); font-size: 18px; font-weight: 700; letter-spacing: .06em; }
.btn-black:hover { opacity: .85; }

/* ---------- FLOW ---------- */
.flow { margin-top: 141px; padding: 136px 0 140px; }
.steps { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; margin-top: 80px; }
.step { position: relative; background: var(--white); color: var(--black); border-radius: 16px; padding: 24px 30px 30px; min-height: 256px; }
.step img { margin: 0 auto; }
.step h3 { margin-top: 18px; min-height: 56px; display: flex; align-items: center; justify-content: center; text-align: center; font-size: 20px; font-weight: 700; line-height: 1.4; letter-spacing: .02em; }
.step p { margin-top: 10px; font-size: 14px; line-height: 1.4; letter-spacing: .05em; }
.step + .step::before { content: ""; position: absolute; left: -24px; top: 127px; width: 20px; height: 4px; background: radial-gradient(circle, #fff 2px, transparent 2.2px) 0 0 / 8px 4px repeat-x; }

/* ---------- FAQ ---------- */
.faq { padding-top: 137px; }
.faq-list { margin-top: 83px; display: flex; flex-direction: column; gap: 8px; }
.qa { background: var(--white); border-radius: 16px; }
.qa-q { width: 100%; min-height: 96px; display: flex; align-items: center; gap: 20px; padding: 0 40px; text-align: left; }
.qa-q span { flex: 1; font-family: var(--kob); font-weight: 700; font-size: 24px; line-height: 1.3; letter-spacing: -.02em; }
.qa-q img { width: 36px; height: 36px; transform: rotate(180deg); transition: transform .3s; }
.qa-q[aria-expanded="true"] img { transform: none; }
.qa-a { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .3s; }
.qa-a p { overflow: hidden; padding: 0 80px 0 40px; font-size: 16px; line-height: 1.6; letter-spacing: .05em; }
.qa.open .qa-a { grid-template-rows: 1fr; }
.qa.open .qa-a p { padding-bottom: 32px; }

/* ---------- CONTACT ---------- */
.contact { position: relative; z-index: 2; margin-top: 140px; padding: 140px 0 141px; background: var(--blue); color: var(--white); border-radius: 60px; overflow: hidden; }
.lines-c { top: 98px; }
.contact-inner { position: relative; display: flex; gap: 100px; }
.contact-head { flex: none; width: 360px; }
.contact-en { font-family: var(--en); font-weight: 700; font-size: 74px; line-height: 1; letter-spacing: .02em; }
.contact-head .ttl-ja { margin-top: 12px; }
.contact-desc { margin-top: 40px; font-size: 14px; line-height: 1.6; letter-spacing: .05em; }
.form { flex: 1; max-width: 460px; }
.f { display: block; }
.f + .f { margin-top: 39px; }
.f-label { display: flex; align-items: center; gap: 6px; font-size: 20px; font-weight: 700; line-height: 1.4; letter-spacing: .02em; }
.f-label i { font-style: normal; display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 24px; background: var(--black); border-radius: 6px; font-size: 12px; letter-spacing: .02em; }
.f input, .f select, .f textarea { display: block; width: 100%; margin-top: 12px; height: 66px; padding: 0 20px; border: 0; border-radius: 12px; background: var(--white); color: var(--black); font-family: var(--en), var(--jp); font-size: 16px; outline: none; }
.f select, .f textarea { border: 1px solid #EEE; }
.f select { height: 68px; appearance: none; -webkit-appearance: none; background: var(--white) url(assets/ic-select.svg) no-repeat right 24px center / 24px; font-family: var(--jp); }
.f textarea { height: 222px; padding: 18px 20px; resize: vertical; font-family: var(--jp); }
.f ::placeholder { color: #A8A8A8; }
.f input:focus, .f select:focus, .f textarea:focus { box-shadow: 0 0 0 3px rgba(255,255,255,.5); }
.agree { margin-top: 60px; display: flex; align-items: center; justify-content: center; gap: 0; font-size: 16px; line-height: 1.6; letter-spacing: .02em; }
.agree input { width: 26px; height: 26px; margin: 0 12px 0 0; accent-color: var(--black); }
.agree a { text-decoration: underline; }
.agree img { margin: 0 4px 0 0; }
.btn-submit { display: block; width: 100%; height: 76px; margin-top: 30px; background: var(--black); color: var(--white); border-radius: 50px; box-shadow: 0 4px 12px rgba(0,0,0,.16); font-size: 20px; font-weight: 700; letter-spacing: .06em; }
.btn-submit:hover { opacity: .85; }

/* ---------- フッター ---------- */
.ft { position: relative; z-index: 3; margin-top: -61px; padding: 192px 0 0; height: 672px; background: var(--black); color: var(--white); overflow: hidden; }
.ft-inner { display: grid; grid-template-columns: 460px 1fr; grid-template-rows: auto auto; }
.ft-logo { width: 272px; height: 54px; }
.ft-nav { display: grid; grid-template-columns: repeat(3, max-content); column-gap: 74px; row-gap: 18px; align-content: start; margin-top: -4px; grid-auto-flow: column; grid-template-rows: repeat(3, auto); }
.ft-nav a { font-size: 16px; font-weight: 700; line-height: 1; letter-spacing: .02em; }
.ft-nav a:nth-child(1) { grid-area: 1 / 1; } .ft-nav a:nth-child(2) { grid-area: 1 / 2; } .ft-nav a:nth-child(3) { grid-area: 1 / 3; }
.ft-nav a:nth-child(4) { grid-area: 2 / 1; } .ft-nav a:nth-child(5) { grid-area: 2 / 2; } .ft-nav a:nth-child(6) { grid-area: 2 / 3; }
.ft-nav a:nth-child(7) { grid-area: 3 / 1; }
.ft-nav a:hover, .ft-links a:hover { opacity: .7; }
.ft-bottom { grid-column: 1 / -1; margin-top: 112px; }
.ft-links { display: flex; align-items: center; font-size: 12px; line-height: 1; }
.ft-links a + a { margin-left: 14px; padding-left: 14px; border-left: 1px solid rgba(255,255,255,.3); }
.ft-copy { margin-top: 19px; font-family: var(--en); font-size: 12px; line-height: 1; }
.ft-mark { position: absolute; left: 0; right: 0; bottom: 0; width: 100%; opacity: .04; }

/* ---------- 中間幅（4列→2列） ---------- */
@media (max-width: 1180px) {
  .hd-nav { gap: 14px; padding: 0 20px; }
  .about-cards, .roles { grid-template-columns: repeat(2, 1fr); row-gap: 40px; }
  .roles { row-gap: 8px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .step + .step::before { display: none; }
  .fv-badges { left: auto; right: 0; }
  .fv-en { display: none; }
  .feat-list { width: min(940px, calc(100% - 48px)); }
  .feat { width: 440px; }
  .feat img { width: 440px; height: auto; aspect-ratio: 460 / 320; }
  .feat-3 { margin-left: 0; }
}
@media (max-width: 1000px) {
  .hd-nav { display: none; }
  .feat-list { width: min(460px, calc(100% - 48px)); }
  .feat, .feat img { width: 100%; }
  .feat-2, .feat-3 { align-self: auto; margin: 64px 0 0; }
  .fv-badges { position: static; margin-top: 24px; padding-left: 10px; }
  .fv-inner { height: auto; padding-bottom: 120px; }
  .what { top: auto; bottom: 20px; }
  .contact-inner { gap: 48px; }
  .contact-head { width: 300px; }
}

/* ---------- SP（〜840px） ---------- */
@media (max-width: 840px) {
  .pc { display: none; }
  .sp { display: inline; }
  html { scroll-padding-top: 72px; }
  .hd { height: 80px; padding: 0 24px; }
  .hd-logo { width: 109px; }
  .hd-cta { display: none; }
  .hd-burger { display: flex; flex-direction: column; justify-content: center; gap: 4px; margin-left: auto; width: 44px; height: 44px; padding: 0 10px; background: var(--white); border-radius: 10px; }
  .hd-burger span { display: block; height: 2px; background: var(--black); border-radius: 2px; transition: transform .3s, opacity .3s; }
  .hd-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .hd-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .hd-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
  .sp-menu { display: flex; flex-direction: column; position: fixed; inset: 0; z-index: 45; padding: 110px 32px 40px; background: var(--bg); gap: 26px; opacity: 0; visibility: hidden; transition: opacity .3s, visibility .3s; }
  .sp-menu.open { opacity: 1; visibility: visible; }
  .sp-menu a { font-size: 18px; font-weight: 700; }
  .sp-menu .sp-menu-cta { margin-top: 12px; height: 60px; display: flex; align-items: center; justify-content: center; background: var(--blue); color: var(--white); border-radius: 50px; }

  .dl { width: 180px; bottom: 18px; }
  .dl-thumb { width: 135px; height: 70px; margin: 0 0 -21px 0; }
  .dl-box { height: 60px; padding: 11px 0 0 16px; }
  .dl-lead { font-size: 10px; }
  .dl-lead b { font-size: 12px; }
  .dl-lead b + b, .dl-lead b:last-child { margin-left: 3px; }
  .dl-main { margin-top: 3px; font-size: 14px; }
  .dl-ic { width: 20px; height: 20px; right: 10px; top: 20px; }

  .fv { padding-top: 70px; }
  .talent-set { gap: 20px; padding-right: 20px; }
  .talent { width: 192px; height: 305px; }
  .talent figcaption { height: 49px; padding: 13px 13px 0; }
  .talent b { font-size: 10px; }
  .talent span { font-size: 7.7px; margin-top: 5px; }
  .fv-lines { top: -27px; }
  .fv-inner { width: calc(100% - 48px); padding: 41px 0 0; height: 408px; }
  .fv-l1, .fv-l2 { font-size: 38.5px; line-height: 38.5px; }
  .fv-l1 { padding-left: 4px; }
  .fv-ai { font-size: 49px; line-height: 49px; margin-bottom: -3px; }
  .fv-l2 { margin-top: 12px; }
  .fv-sub { margin-top: 25px; padding-left: 10px; font-size: 13.5px; }
  .fv-sub br { display: inline; }
  .fv-badges { position: static; margin-top: 20px; padding-left: 0; gap: 8px; }
  .badge { width: 100px; height: 100px; padding-bottom: 6px; }
  .badge-label { font-size: 12px; }
  .badge-label em { font-size: 14px; }
  .badge-num b { font-size: 26px; }
  .badge-num b.b5 { font-size: 24px; }
  .badge-num small { font-size: 18px; }
  .badge-unit { font-size: 15px; }
  .fv-en { display: block; position: absolute; right: -10px; top: 56px; width: auto; height: 243px; writing-mode: vertical-rl; font-size: 7.7px; line-height: 10.8px; text-align: left; }
  .what { top: 248px; bottom: auto; }
  .what-track span { font-size: 60px; line-height: 120px; }

  .ttl-en { font-size: 42px; }
  .ttl-ja { font-size: 15px; margin-top: 8px; }

  .about { padding-top: 47px; }
  .about-head { flex-direction: column; gap: 60px; width: calc(100% - 48px); }
  .ttl-left { width: auto; text-align: center; }
  .about-text { padding: 0 24px; font-size: 16px; line-height: 2; }
  .about-text p + p { margin-top: 32px; }
  .about-diagram { width: min(309px, calc(100% - 66px)); margin-top: 60px; }
  .about-cards { grid-template-columns: 1fr; row-gap: 21px; margin-top: 60px; }
  .card { min-height: 0; border-radius: 12px; padding: 28px 24px 24px; }
  .card h3 { font-size: 17px; min-height: 0; }
  .card p { font-size: 13px; }

  .dark { border-radius: 40px; }
  .features { margin-top: 80px; padding: 76px 0 80px; }
  .lines-a { top: 60px; }
  .lines-b { top: auto; bottom: 0; }
  .feat-list { width: calc(100% - 48px); margin-top: 60px; }
  .feat-2, .feat-3 { margin-top: 60px; }
  .feat-no { font-size: 16px; }
  .feat h3 { font-size: 24px; }
  .feat-body { font-size: 14px; }
  .feat picture { margin-top: 24px; }
  .feat img { width: 100%; height: auto; aspect-ratio: 327 / 227; }

  .experts { margin-top: -40px; padding: 120px 0 80px; border-radius: 0 0 40px 40px; }
  .experts-glow { width: 360px; top: -140px; }
  .experts-pill { padding: 10px 32px; font-size: 16px; }
  .experts-title { margin-top: 16px; font-size: 23px; }
  .roles { grid-template-columns: 1fr; gap: 8px; margin-top: 40px; }
  .role { min-height: 0; display: flex; gap: 24px; align-items: flex-start; padding: 24px; border-radius: 12px; text-align: left; }
  .role-ring { width: 68px; height: 68px; margin: 0; flex: none; }
  .role-ring img { width: 60px; height: 60px; }
  .role h3 { margin-top: 0; font-size: 18px; }
  .tags { justify-content: flex-start; gap: 2px; margin-top: 12px; }
  .tags li { height: auto; min-height: 23px; padding: 4px 8px; border-radius: 6px; font-size: 11px; line-height: 1.3; }

  .cases { padding-top: 77px; }
  .slider { margin-top: 60px; height: 354px; }
  .slider-track { gap: 24px; }
  .case, .case-thumb { width: 294px; }
  .case-thumb { height: 196px; }
  .case h3 { font-size: 20px; }
  .case-tags { margin-top: 20px; }
  .case-tags li { height: 26px; padding: 0 12px; font-size: 11px; }
  .slider-fade { width: 24px; }
  .slider-btn { width: 40px; height: 40px; top: 78px; }
  .slider-prev { left: 14px; }
  .slider-next { right: 14px; }
  .btn-black { width: 240px; height: 66px; margin-top: 60px; font-size: 15px; }

  .flow { margin-top: 75px; padding: 80px 0; }
  .steps { grid-template-columns: 1fr; gap: 30px; margin-top: 60px; }
  .step { min-height: 0; padding: 20px 24px 24px; border-radius: 12px; }
  .step img { width: 24px; height: 24px; }
  .step h3 { margin-top: 8px; min-height: 0; font-size: 17px; }
  .step p { font-size: 13px; }
  .step + .step::before { display: block; left: 50%; top: -25px; width: 4px; height: 20px; transform: translateX(-50%); background: radial-gradient(circle, #fff 2px, transparent 2.2px) 0 0 / 4px 8px repeat-y; }

  .faq { padding-top: 77px; }
  .faq-list { margin-top: 60px; width: calc(100% - 48px); }
  .qa { border-radius: 12px; }
  .qa-q { min-height: 65px; padding: 18px 24px; gap: 10px; }
  .qa-q span { font-size: 18px; }
  .qa-q img { width: 26px; height: 26px; }
  .qa-a p { padding: 0 24px; font-size: 14px; }
  .qa.open .qa-a p { padding-bottom: 20px; }

  .contact { margin-top: 80px; padding: 80px 0; border-radius: 40px; }
  .lines-c { top: auto; bottom: 700px; }
  .contact-inner { flex-direction: column; gap: 44px; width: calc(100% - 48px); }
  .contact-head { width: auto; text-align: center; }
  .contact-en { font-size: 42px; }
  .contact-desc { margin-top: 40px; font-size: 13px; text-align: left; }
  .form { max-width: none; }
  .f + .f { margin-top: 30px; }
  .f-label { font-size: 16px; }
  .f-label i { width: 32px; height: 19px; font-size: 10px; }
  .f input, .f select, .f textarea { margin-top: 8px; }
  .agree { margin-top: 50px; }
  .btn-submit { margin-top: 23px; }

  .ft { margin-top: -41px; padding-top: 124px; height: 552px; }
  .ft-inner { grid-template-columns: 1fr; width: calc(100% - 48px); text-align: center; }
  .ft-logo { width: 214px; height: 42px; margin: 0 auto; }
  .ft-nav { margin: 48px auto 0; grid-template-columns: repeat(2, max-content); grid-template-rows: none; grid-auto-flow: row; column-gap: 56px; row-gap: 14px; text-align: left; }
  .ft-nav a { font-size: 13px; grid-area: auto !important; }
  .ft-nav a[href="#column"] { display: none; }
  .ft-bottom { margin-top: 64px; }
  .ft-links { justify-content: center; font-size: 11px; }
  .ft-copy { margin-top: 16px; font-size: 11px; }
}

@media (prefers-reduced-motion: reduce) {
  .marquee-track, .what-track { animation: none; }
}