:root {
  --bg: #f6f6f6;
  --ink: #424242;
  --sub: #777;
  --yellow: #f9db00;
  --yellow-soft: #fff6b8;
  --orange: #ff7a1a;
  --green: #1fb98a;
  --white: #fff;
  --line: #e4e4e4;
  --word: #e9e9e9;
  --jp: "Noto Sans JP", system-ui, sans-serif;
  --en: "Nunito", "Noto Sans JP", sans-serif;
  --blob: 58% 42% 52% 48% / 46% 56% 44% 54%;
}

* { box-sizing: border-box; }
html { overflow-x: clip; scroll-behavior: smooth; scroll-padding-top: 96px; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 16px/2 var(--jp); letter-spacing: .06em; overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p { margin: 0; }
section { position: relative; }

/* ボタン */
.pill { display: inline-flex; align-items: center; gap: .6em; padding: .9em 1.8em; border-radius: 999px; font-weight: 900; font-size: 15px; line-height: 1.3; letter-spacing: .04em; transition: transform .2s, filter .2s; }
.pill::after { content: ""; width: 1.05em; height: 1.05em; border-radius: 50%; background: currentColor; -webkit-mask: radial-gradient(circle, #000 64%, transparent 66%), none; mask: radial-gradient(circle, #000 64%, transparent 66%); opacity: .9; }
.pill:hover { transform: translateY(-2px); filter: brightness(1.05); }
.pill-green { background: var(--green); color: #fff; }
.pill-orange { background: var(--orange); color: #fff; }
.pill-yellow { background: var(--yellow); color: var(--ink); }
.pill-lg { font-size: 18px; padding: 1.1em 2.4em; }

/* ヘッダー */
.hd { position: fixed; inset: 0 0 auto; z-index: 50; display: flex; align-items: center; gap: 24px; padding: 14px 32px; background: rgba(246, 246, 246, .92); backdrop-filter: blur(6px); }
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-name { font-weight: 900; font-size: 24px; letter-spacing: .08em; line-height: 1.1; display: flex; flex-direction: column; }
.logo-name small { font-size: 10px; font-weight: 700; letter-spacing: .1em; color: var(--sub); margin-top: 3px; }
.gnav { display: flex; gap: 22px; margin-left: auto; }
.gnav a { display: flex; flex-direction: column; align-items: center; gap: 4px; font-size: 12px; font-weight: 700; line-height: 1.3; }
.gnav img { width: 46px; height: 46px; padding: 7px; border-radius: 50%; background: #fff; box-shadow: 0 2px 8px rgba(0, 0, 0, .06); transition: transform .25s; }
.gnav a:hover img { transform: translateY(-3px) rotate(-6deg); }
.hd-btns { display: flex; gap: 10px; }
.menu-btn { display: none; }

/* ファーストビュー */
.fv { min-height: 100vh; padding: 140px 0 80px 6vw; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); align-items: center; overflow: hidden; }
.fv-text { position: relative; z-index: 2; }
.fv-copy { font-weight: 900; font-size: clamp(34px, 4.3vw, 68px); line-height: 1.55; letter-spacing: .12em; }
.fv-copy .ln { display: block; white-space: nowrap; opacity: 0; transform: translateY(20px); animation: up .8s cubic-bezier(.2, .7, .2, 1) forwards; }
.fv-copy .ln:nth-child(2) { animation-delay: .15s; }
.fv-copy .ln:nth-child(3) { animation-delay: .3s; }
.fv-copy em { font-style: normal; color: var(--yellow); }
.fv-lead { margin-top: 28px; font-size: 15px; font-weight: 500; line-height: 2.2; }
.stats { list-style: none; padding: 0; margin: 36px 0 0; display: flex; gap: 14px; flex-wrap: wrap; }
.stats li { width: 160px; text-align: center; display: flex; flex-direction: column; align-items: center; }
.stats .tag { position: relative; display: block; width: 100%; background: var(--yellow); border-radius: 8px; padding: 6px 4px; font-size: 12px; font-weight: 900; line-height: 1.4; }
.stats .tag::after { content: ""; position: absolute; left: 50%; bottom: -7px; translate: -50% 0; border: 7px solid transparent; border-bottom: 0; border-top-color: var(--yellow); }
.stats b { margin-top: 10px; font: 900 40px/1.1 var(--en); letter-spacing: .02em; }
.stats b.word { font: 900 26px/1.5 var(--jp); }
.stats b small { font: 900 16px var(--jp); margin-left: 2px; }
.stats i { font-style: normal; font-size: 11px; color: var(--sub); line-height: 1.6; margin-top: 4px; }

.fv-visual { position: relative; height: min(78vh, 760px); }
.fv-sun { position: absolute; top: -38%; right: -38%; width: 132%; aspect-ratio: 1; border-radius: 50%; background: var(--yellow); }
.fv-photo { position: absolute; right: 6%; top: 8%; width: 70%; height: 86%; object-fit: cover; }
.blob { border-radius: var(--blob); animation: morph 14s ease-in-out infinite alternate; }
.blob-2 { --blob: 44% 56% 62% 38% / 52% 40% 60% 48%; }
.blob-3 { --blob: 62% 38% 46% 54% / 40% 58% 42% 60%; }
.il { position: absolute; pointer-events: none; animation: float 5s ease-in-out infinite alternate; }
.il-fv1 { width: 19%; left: -2%; top: 10%; }
.il-fv2 { width: 17%; right: 0; bottom: 4%; animation-delay: -2s; }
.il-fv3 { width: 14%; left: 8%; bottom: 6%; animation-delay: -1s; }

.circle-cta { position: absolute; right: 4vw; bottom: 3vh; z-index: 5; width: 250px; height: 250px; border-radius: 50%; background: #fff; border: 3px solid var(--ink); outline: 8px solid #fff; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; text-align: center; box-shadow: 0 10px 30px rgba(0, 0, 0, .1); transition: transform .3s; }
.circle-cta:hover { transform: rotate(-4deg) scale(1.03); }
.cc-small { font-size: 12px; font-weight: 700; }
.cc-big { font-size: 21px; font-weight: 900; line-height: 1.45; }
.circle-cta .pill { font-size: 13px; padding: .7em 1.4em; }

/* 大きな英字 */
.bg-word { position: absolute; top: 40px; left: 50%; translate: -50% 0; z-index: 0; font: 900 clamp(90px, 15vw, 230px)/1 var(--en); color: var(--word); letter-spacing: .02em; white-space: nowrap; pointer-events: none; user-select: none; }
.bg-word-v { top: 120px; left: auto; right: -2vw; translate: 0; writing-mode: vertical-rl; }
.en { font: 900 18px/1.4 var(--en); color: var(--yellow); letter-spacing: .25em; }
.h-wide { font-weight: 900; font-size: clamp(24px, 2.8vw, 36px); line-height: 1.75; letter-spacing: .16em; margin: 14px 0 28px; }
.sec-head { position: relative; z-index: 1; text-align: center; max-width: 760px; margin: 0 auto 56px; padding: 0 16px; }
.sec-head > p:last-child { font-size: 14px; line-height: 2.1; }

/* コンセプト */
.concept { padding: 200px 6vw 160px; display: grid; grid-template-columns: 1fr 1.3fr; gap: 4vw; align-items: center; }
.concept::before { content: ""; position: absolute; inset: 160px 8vw 80px 22vw; background: #fff; border-radius: 50% 50% 46% 54% / 60% 60% 40% 40%; z-index: 0; }
.concept-photo { position: relative; z-index: 1; width: 100%; aspect-ratio: 4 / 4.4; object-fit: cover; }
.concept-body { position: relative; z-index: 1; text-align: center; }
.concept-body > p:not(.en) { font-size: 14px; line-height: 2.5; letter-spacing: .14em; margin-bottom: 1.2em; }
.btn-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 32px; }
.il-c1 { width: 22vw; max-width: 330px; right: 3vw; top: 70px; }
.il-c2 { width: 10vw; max-width: 150px; left: 40%; bottom: 40px; animation-delay: -2.5s; }

/* 特長 */
.points { padding: 60px 0 140px; overflow: hidden; }
.point { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 5vw; margin-bottom: 120px; }
.point-photo { margin: 0; }
.point-photo img { width: 100%; aspect-ratio: 4 / 3.3; object-fit: cover; border-radius: 0 0 160px 0; }
.point.rev .point-photo { order: 2; }
.point.rev .point-photo img { border-radius: 0 0 0 160px; }
.point-body { padding-right: 7vw; }
.point.rev .point-body { padding: 0 0 0 7vw; }
.badge { width: 84px; height: 84px; border-radius: 50%; background: var(--yellow); display: flex; flex-direction: column; align-items: center; justify-content: center; font: 900 30px/1 var(--en); }
.badge small { font-size: 10px; letter-spacing: .1em; margin-bottom: 2px; }
.point-cat { font-size: 24px; font-weight: 900; letter-spacing: .14em; margin: -6px 0 14px 40px; }
.point-h { color: var(--orange); font-size: clamp(22px, 2.4vw, 32px); font-weight: 900; line-height: 1.6; letter-spacing: .1em; margin-bottom: 22px; }
.point-body > p:not(.badge) { font-size: 14px; line-height: 2.2; }
.talk { list-style: none; padding: 0; margin: 26px 0 0; display: grid; gap: 12px; }
.talk li { display: flex; align-items: center; gap: 12px; }
.talk p { background: #fff; border-radius: 10px; padding: 10px 16px; font-size: 13px; line-height: 1.8; box-shadow: 0 2px 10px rgba(0, 0, 0, .05); }
.talk .ai p { background: var(--yellow-soft); }
.av { flex-shrink: 0; width: 46px; height: 46px; border-radius: 50%; background: #fff center / 76% no-repeat; box-shadow: 0 2px 8px rgba(0, 0, 0, .08); }
.av-them { background-image: url(assets/img/ic-phone.webp); }
.av-ai { background-image: url(assets/img/ic-headset.webp); background-color: var(--yellow); }
.il-p1 { width: 26vw; max-width: 380px; right: 6vw; bottom: 20px; }

/* 声 */
.voice { padding: 180px 16px 140px; background: #fff; border-radius: 50% 50% 0 0 / 120px 120px 0 0; }
.call { position: relative; z-index: 1; list-style: none; padding: 0; margin: 0 auto; max-width: 760px; display: grid; gap: 16px; }
.call li { display: flex; gap: 14px; align-items: flex-start; }
.call p { border-radius: 18px; padding: 14px 20px; font-size: 14px; line-height: 1.9; }
.call .ai p { background: var(--yellow-soft); border-top-left-radius: 4px; }
.call .them { justify-content: flex-end; }
.call .them p { background: var(--bg); border-top-right-radius: 4px; color: var(--sub); }
.play { flex-shrink: 0; width: 52px; height: 52px; border: 0; border-radius: 50%; background: var(--yellow); cursor: pointer; position: relative; transition: transform .2s; }
.play::before { content: ""; position: absolute; left: 21px; top: 16px; border: 10px solid transparent; border-right: 0; border-left: 16px solid var(--ink); }
.play.on::before { left: 18px; top: 17px; width: 5px; height: 18px; border: 0; background: var(--ink); box-shadow: 10px 0 0 var(--ink); }
.play:hover { transform: scale(1.08); }
.play.on { animation: pulse 1.2s ease-in-out infinite; }
.il-v1 { width: 12vw; max-width: 170px; left: 5vw; bottom: 60px; }

/* 場面 */
.scene { padding: 120px 6vw; background: #fff; }
.scene-list { list-style: none; padding: 0; margin: 0 auto; max-width: 1100px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.scene-list li { background: var(--bg); border-radius: 24px; padding: 30px 22px; text-align: center; }
.scene-list img { width: 74px; height: 74px; margin: 0 auto 14px; padding: 10px; background: #fff; border-radius: 50%; }
.scene-list h3 { font-size: 17px; font-weight: 900; letter-spacing: .08em; margin-bottom: 8px; line-height: 1.6; }
.scene-list p { font-size: 13px; line-height: 1.9; text-align: left; }

/* 流れ */
.flow { padding: 200px 6vw 140px; }
.flow-list { position: relative; z-index: 1; list-style: none; padding: 0; margin: 0 auto; max-width: 1100px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: f; }
.flow-list li { background: #fff; border-radius: 24px; padding: 36px 24px 30px; position: relative; }
.flow-list li:not(:last-child)::after { content: ""; position: absolute; right: -16px; top: 50%; translate: 0 -50%; border: 9px solid transparent; border-right: 0; border-left: 12px solid var(--yellow); }
.num { font: 900 44px/1 var(--en); color: var(--yellow); }
.flow-list h3 { font-size: 18px; font-weight: 900; letter-spacing: .08em; margin: 12px 0 8px; }
.flow-list p { font-size: 13px; line-height: 1.9; }

/* よくある質問 */
.faq { padding: 60px 16px 140px; }
.faq-list { max-width: 820px; margin: 0 auto; display: grid; gap: 12px; }
.faq details { background: #fff; border-radius: 18px; padding: 0 24px; }
.faq summary { list-style: none; cursor: pointer; padding: 20px 36px 20px 46px; position: relative; font-weight: 900; font-size: 15px; line-height: 1.7; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: "Q"; position: absolute; left: 0; top: 16px; width: 32px; height: 32px; border-radius: 50%; background: var(--yellow); font: 900 16px/32px var(--en); text-align: center; }
.faq summary::after { content: ""; position: absolute; right: 4px; top: 50%; width: 10px; height: 10px; border-right: 3px solid var(--ink); border-bottom: 3px solid var(--ink); translate: 0 -70%; rotate: 45deg; transition: rotate .2s; }
.faq details[open] summary::after { rotate: -135deg; translate: 0 -20%; }
.faq details p { padding: 0 0 22px 46px; font-size: 14px; line-height: 2; }

/* 相談 */
.contact { margin: 0 4vw 80px; padding: 90px 6vw; background: var(--yellow); border-radius: 60px; display: grid; grid-template-columns: 1fr 1.2fr; gap: 5vw; align-items: center; overflow: hidden; }
.contact-photo { width: 100%; aspect-ratio: 4 / 3.6; object-fit: cover; }
.contact .en { color: #fff; }
.contact-body > p:not(.en) { font-size: 15px; line-height: 2.1; margin-bottom: 32px; font-weight: 500; }
.il-ct { width: 18vw; max-width: 260px; right: 2vw; bottom: 10px; opacity: .95; }

/* フッター */
.ft { padding: 40px 16px 60px; text-align: center; font-size: 13px; color: var(--sub); }
.ft .logo { justify-content: center; margin-bottom: 10px; color: var(--ink); }
.copy { margin-top: 10px; font: 800 12px var(--en); letter-spacing: .1em; }
.to-top { position: fixed; right: 18px; bottom: 18px; z-index: 40; width: 46px; height: 46px; border-radius: 50%; background: #555; opacity: 0; transition: opacity .3s; }
.to-top::before { content: ""; position: absolute; left: 16px; top: 19px; width: 12px; height: 12px; border-left: 3px solid #fff; border-top: 3px solid #fff; rotate: 45deg; }
.to-top.show { opacity: .9; }

/* 動き */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity .9s, transform .9s cubic-bezier(.2, .7, .2, 1); }
.reveal.in { opacity: 1; transform: none; }
@keyframes up { to { opacity: 1; transform: none; } }
@keyframes float { from { transform: translateY(0); } to { transform: translateY(-14px); } }
@keyframes morph { 50% { border-radius: 46% 54% 40% 60% / 58% 44% 56% 42%; } }
@keyframes pulse { 50% { box-shadow: 0 0 0 10px rgba(249, 219, 0, .3); } }
@media (prefers-reduced-motion: reduce) { *, .reveal { animation: none !important; transition: none !important; opacity: 1 !important; transform: none !important; } }

/* タブレット */
@media (max-width: 1180px) {
  .gnav { display: none; }
  .hd-btns { margin-left: auto; }
}

/* スマホ */
@media (max-width: 820px) {
  body { font-size: 15px; }
  .hd { padding: 10px 16px; gap: 10px; }
  .logo img { width: 36px; height: 36px; }
  .logo-name { font-size: 19px; }
  .logo-name small { display: none; }
  .hd-btns .pill-green { display: none; }
  .hd-btns .pill { font-size: 13px; padding: .7em 1.2em; }
  .fv { grid-template-columns: 1fr; padding: 100px 16px 300px; min-height: 0; }
  .fv-copy { font-size: 40px; letter-spacing: .08em; }
  .fv-lead br { display: none; }
  .stats { gap: 8px; }
  .stats li { width: calc((100% - 16px) / 3); }
  .stats b { font-size: 28px; }
  .stats b.word { font-size: 18px; line-height: 1.9; }
  .fv-visual { height: 420px; margin: 30px -16px 0; }
  .fv-photo { width: 76%; right: 8%; }
  .circle-cta { width: 190px; height: 190px; right: 50%; translate: 50% 0; bottom: 60px; }
  .cc-big { font-size: 17px; }
  .bg-word { top: 20px; }
  .bg-word-v { display: none; }
  .concept { grid-template-columns: 1fr; padding: 120px 16px 120px; }
  .concept::before { inset: 360px 0 40px 0; border-radius: 40px; }
  .concept-photo { width: 80%; margin: 0 auto; }
  .concept-body > p:not(.en) { letter-spacing: .06em; }
  .concept-body br { display: none; }
  .il-c1 { width: 40vw; top: 40px; right: 0; }
  .il-c2 { display: none; }
  .point, .point.rev { grid-template-columns: 1fr; gap: 28px; margin-bottom: 80px; }
  .point.rev .point-photo { order: 0; }
  .point-photo { padding-right: 16px; }
  .point.rev .point-photo { padding: 0 0 0 16px; }
  .point-body, .point.rev .point-body { padding: 0 16px; }
  .point-h br { display: none; }
  .il-p1 { display: none; }
  .voice { padding: 120px 16px 100px; border-radius: 40px 40px 0 0; }
  .call .them p { margin-left: 40px; }
  .scene, .flow { padding-left: 16px; padding-right: 16px; }
  .scene-list, .flow-list { grid-template-columns: 1fr; }
  .flow { padding-top: 140px; }
  .flow-list li:not(:last-child)::after { right: 50%; top: auto; bottom: -16px; translate: 50% 0; rotate: 90deg; }
  .contact { grid-template-columns: 1fr; margin: 0 12px 60px; padding: 60px 20px; border-radius: 36px; }
  .contact .h-wide br { display: none; }
  .il-ct { display: none; }
  .pill-lg { font-size: 16px; }
}