/* 企業AIプラットフォーム 1 ページ紹介（LP）・法定表記ページ｜Infinite Area AI（無限領域） */
:root {
  --ink: #081320;
  --ink-2: #0f1f33;
  --orange: #ff5a2e;
  --orange-2: #ff8a3d;
  --paper: #f3f5f4;
  --white: #fff;
  --muted: #5b6878;
  --line: #e1e5e8;
  --r: 18px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body { margin: 0; font-family: "Noto Sans JP", system-ui, -apple-system, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif; color: var(--ink); background: var(--paper); line-height: 1.7; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; line-height: 1.25; letter-spacing: .01em; }
p { margin: 0; }
.wrap { width: min(1160px, 100% - 40px); margin: 0 auto; }
.wrap.narrow { width: min(820px, 100% - 40px); }
svg { width: 1em; height: 1em; flex: none; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; background: var(--orange); color: #fff; font-weight: 700; border-radius: 999px; padding: 12px 24px; box-shadow: 0 10px 28px rgba(255, 90, 46, .35); transition: transform .18s, box-shadow .18s, background .18s; white-space: nowrap; }
.btn:hover { transform: translateY(-2px); background: #ff6a40; box-shadow: 0 14px 34px rgba(255, 90, 46, .45); }
.btn.sm { padding: 8px 18px; font-size: 14px; box-shadow: none; }
.btn.lg, .btn-line.lg { padding: 15px 30px; font-size: 17px; }
.btn svg { font-size: 18px; }
.btn-line { display: inline-flex; align-items: center; justify-content: center; border: 1.5px solid rgba(255, 255, 255, .35); color: #fff; border-radius: 999px; font-weight: 700; padding: 12px 24px; transition: border-color .18s, background .18s; white-space: nowrap; }
.btn-line:hover { border-color: #fff; background: rgba(255, 255, 255, .06); }

/* nav */
.nav { position: fixed; inset: 0 0 auto; z-index: 50; transition: background .25s, box-shadow .25s; }
.nav.solid { background: rgba(8, 19, 32, .92); backdrop-filter: blur(12px); box-shadow: 0 1px 0 rgba(255, 255, 255, .06); }
.nav-in { display: flex; align-items: center; gap: 28px; height: 72px; }
.logo img { height: 40px; width: auto; }
.links { display: flex; gap: 26px; margin-left: auto; }
.links a { color: rgba(255, 255, 255, .78); font-size: 15px; font-weight: 500; }
.links a:hover { color: #fff; }
.nav-cta { display: flex; align-items: center; gap: 14px; }
.ghost { color: #fff; font-size: 15px; font-weight: 500; }

/* hero */
.hero { position: relative; overflow: hidden; background: var(--ink); color: #fff; padding: 150px 0 110px; }
.glow { position: absolute; inset: 0; pointer-events: none; background:
  radial-gradient(600px 380px at 85% 30%, rgba(255, 90, 46, .28), transparent 70%),
  radial-gradient(520px 320px at 10% 100%, rgba(255, 138, 61, .14), transparent 70%),
  linear-gradient(180deg, transparent 60%, rgba(0, 0, 0, .25)); }
.glow::after { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px); background-size: 48px 48px; mask-image: radial-gradient(ellipse at 70% 40%, #000 20%, transparent 70%); -webkit-mask-image: radial-gradient(ellipse at 70% 40%, #000 20%, transparent 70%); }
.hero-in { position: relative; display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.pill { display: inline-flex; align-items: center; gap: 10px; padding: 7px 16px; border-radius: 999px; background: rgba(255, 90, 46, .14); border: 1px solid rgba(255, 90, 46, .45); color: #ffd2c4; font-size: 14px; font-weight: 500; margin-bottom: 26px; }
.pill b { color: #fff; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--orange); box-shadow: 0 0 0 0 rgba(255, 90, 46, .7); animation: ping 1.8s infinite; }
@keyframes ping { 70% { box-shadow: 0 0 0 9px rgba(255, 90, 46, 0); } 100% { box-shadow: 0 0 0 0 rgba(255, 90, 46, 0); } }
.hero h1 { font-size: clamp(30px, 4.6vw, 54px); font-weight: 900; }
.nb { white-space: nowrap; }
.hero h1 em { font-style: normal; color: var(--orange); background: linear-gradient(transparent 72%, rgba(255, 90, 46, .25) 72%); }
.lead { margin-top: 22px; font-size: 18px; color: rgba(255, 255, 255, .74); max-width: 560px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.cta-row.center { justify-content: center; }
.ticks { list-style: none; padding: 0; margin: 26px 0 0; display: flex; flex-wrap: wrap; gap: 22px; color: rgba(255, 255, 255, .7); font-size: 14px; }
.ticks li { display: flex; align-items: center; gap: 6px; }
.ticks svg { color: var(--orange); font-size: 17px; }

/* hero mock */
.mock { background: linear-gradient(160deg, #13253b, #0b1828); border: 1px solid rgba(255, 255, 255, .1); border-radius: 22px; box-shadow: 0 40px 80px rgba(0, 0, 0, .45); overflow: hidden; transform: perspective(1200px) rotateY(-6deg) rotateX(3deg); }
.mock-bar { display: flex; align-items: center; gap: 7px; padding: 14px 18px; border-bottom: 1px solid rgba(255, 255, 255, .07); }
.mock-bar i { width: 10px; height: 10px; border-radius: 50%; background: rgba(255, 255, 255, .18); }
.mock-bar i:first-child { background: var(--orange); }
.mock-bar span { margin-left: 8px; font-size: 13px; color: rgba(255, 255, 255, .55); }
.mock-body { padding: 22px; display: grid; gap: 14px; }
.m-wallet { border-radius: 16px; padding: 18px 20px; background: linear-gradient(135deg, var(--orange), var(--orange-2)); display: grid; }
.m-wallet small { font-size: 13px; opacity: .9; }
.m-wallet strong { font-size: 44px; line-height: 1.1; font-weight: 900; }
.m-wallet span { font-size: 13px; opacity: .9; }
.m-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.m-grid div { border-radius: 12px; padding: 12px 14px; background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .07); display: grid; }
.m-grid b { font-size: 14px; }
.m-grid small { font-size: 12px; color: rgba(255, 255, 255, .5); }
.m-chat { display: grid; gap: 8px; font-size: 13px; }
.m-chat p { padding: 9px 13px; border-radius: 14px; max-width: 85%; }
.m-chat .q { justify-self: end; background: var(--orange); border-bottom-right-radius: 4px; }
.m-chat .a { background: rgba(255, 255, 255, .08); border-bottom-left-radius: 4px; color: rgba(255, 255, 255, .85); }

/* offer */
.offer { background: var(--orange); color: #fff; padding: 60px 0; position: relative; }
.offer-head { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 12px 40px; margin-bottom: 30px; }
.offer h2 { font-size: clamp(26px, 3.4vw, 38px); font-weight: 900; }
.offer-head p { max-width: 460px; opacity: .92; }
.offer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.offer-grid div { background: rgba(255, 255, 255, .14); border: 1px solid rgba(255, 255, 255, .28); border-radius: var(--r); padding: 22px 20px; display: grid; gap: 4px; }
.offer-grid strong { font-size: 28px; font-weight: 900; line-height: 1.2; }
.offer-grid span { font-size: 15px; opacity: .92; }
.offer-note { margin-top: 20px; font-size: 14px; opacity: .9; }

/* sections */
.sec { padding: 100px 0; }
.sec.soft { background: #e9edeb; }
.sec.dark { background: var(--ink); color: #fff; }
.eyebrow { font-size: 13px; font-weight: 700; letter-spacing: .22em; color: var(--orange); margin-bottom: 14px; display: flex; align-items: center; gap: 12px; }
.eyebrow::before { content: ""; width: 28px; height: 2px; background: var(--orange); }
.sec-title { font-size: clamp(28px, 3.8vw, 44px); font-weight: 900; margin-bottom: 46px; }

.feat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.feat { background: var(--white); border: 1px solid var(--line); border-radius: var(--r); padding: 26px 22px; transition: transform .2s, box-shadow .2s, border-color .2s; }
.feat:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(8, 19, 32, .08); border-color: transparent; }
.fi { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 14px; background: #fff1ec; color: var(--orange); font-size: 24px; margin-bottom: 18px; }
.feat.ai .fi { background: var(--ink); color: var(--orange); }
.feat h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.feat p, .feat-wide p { color: var(--muted); font-size: 15px; }
.feat-wide { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 18px; }
.feat-wide article { display: flex; gap: 18px; align-items: flex-start; background: var(--white); border: 1px solid var(--line); border-radius: var(--r); padding: 26px 24px; }
.feat-wide .fi { margin: 0; }
.feat-wide h3 { font-size: 18px; margin-bottom: 6px; }

.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: s; }
.steps li { position: relative; padding: 30px 26px; border-radius: var(--r); background: rgba(255, 255, 255, .04); border: 1px solid rgba(255, 255, 255, .08); }
.steps span { font-size: 44px; font-weight: 900; color: var(--orange); line-height: 1; display: block; margin-bottom: 18px; }
.steps h3 { font-size: 20px; margin-bottom: 8px; }
.steps p { color: rgba(255, 255, 255, .68); font-size: 15px; }
.center { text-align: center; margin-top: 44px; }

.ind-list { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line); }
.ind { padding: 28px 22px 10px 0; border-right: 1px solid var(--line); }
.ind:last-child { border-right: 0; }
.ind + .ind { padding-left: 22px; }
.ind .num { font-size: 13px; font-weight: 700; color: var(--orange); }
.ind h3 { font-size: 18px; margin: 10px 0 8px; }
.ind p { color: var(--muted); font-size: 15px; }

.price-table { background: var(--white); border-radius: var(--r); overflow: hidden; border: 1px solid var(--line); }
.pr { display: grid; grid-template-columns: 1fr 1.3fr; gap: 20px; padding: 18px 26px; border-top: 1px solid var(--line); font-size: 16px; }
.pr.head { border-top: 0; background: var(--ink); color: #fff; font-weight: 700; font-size: 14px; letter-spacing: .05em; }
.pr span:first-child { font-weight: 700; }
.pr.free span:last-child { color: var(--orange); font-weight: 900; }
.fine { margin-top: 16px; color: var(--muted); font-size: 14px; }

.faq details { background: var(--white); border: 1px solid var(--line); border-radius: 14px; margin-bottom: 12px; overflow: hidden; }
.faq summary { cursor: pointer; list-style: none; padding: 20px 56px 20px 24px; font-weight: 700; font-size: 17px; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 24px; top: 50%; transform: translateY(-50%); font-size: 24px; font-weight: 400; color: var(--orange); transition: transform .2s; }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { padding: 0 24px 22px; color: var(--muted); }

.final { position: relative; overflow: hidden; background: var(--ink); color: #fff; padding: 110px 0; text-align: center; }
.final-in { position: relative; }
.final h2 { font-size: clamp(30px, 4.4vw, 52px); font-weight: 900; }
.final h2 em { font-style: normal; color: var(--orange); }
.final p { margin: 20px auto 0; max-width: 560px; color: rgba(255, 255, 255, .72); font-size: 17px; }

.foot { background: #050c15; color: rgba(255, 255, 255, .6); padding: 46px 0 26px; font-size: 14px; }
.foot-in { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 24px; align-items: flex-start; }
.foot img { height: 36px; width: auto; margin-bottom: 12px; }
.foot nav { display: flex; flex-wrap: wrap; gap: 22px; }
.foot nav a:hover { color: #fff; }
.copy { margin-top: 30px; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, .08); font-size: 13px; }

.float-cta { display: none; }

/* reveal */
.feat, .feat-wide article, .steps li, .ind, .offer-grid div { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease, box-shadow .2s, border-color .2s; }
.in { opacity: 1 !important; transform: none !important; }
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } .feat, .feat-wide article, .steps li, .ind, .offer-grid div { opacity: 1; transform: none; } .mock { transform: none; } }

/* responsive */
@media (max-width: 1020px) {
  .links { display: none; }
  .nav-cta { margin-left: auto; }
  .hero-in { grid-template-columns: 1fr; }
  .mock { transform: none; max-width: 520px; }
  .feat-grid { grid-template-columns: repeat(2, 1fr); }
  .ind-list { grid-template-columns: 1fr 1fr; border-top: 0; gap: 0 22px; }
  .ind, .ind + .ind { border-right: 0; border-top: 1px solid var(--line); padding: 22px 0 18px; }
  .offer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 680px) {
  .wrap, .wrap.narrow { width: calc(100% - 32px); }
  .nav-in { height: 62px; gap: 12px; }
  .logo img { height: 32px; }
  .ghost { font-size: 14px; }
  .hero { padding: 108px 0 70px; }
  .lead { font-size: 16px; }
  .btn.lg, .btn-line.lg { width: 100%; padding: 14px 20px; font-size: 16px; }
  .sec { padding: 70px 0; }
  .sec-title { margin-bottom: 30px; }
  .feat-grid, .feat-wide, .steps, .ind-list { grid-template-columns: 1fr; }
  .feat-grid { gap: 12px; }
  .feat { display: grid; grid-template-columns: 44px 1fr; column-gap: 14px; padding: 18px; }
  .feat .fi { width: 44px; height: 44px; font-size: 22px; margin: 0; grid-row: span 2; }
  .feat h3 { font-size: 17px; margin-bottom: 2px; }
  .feat-wide { gap: 12px; margin-top: 12px; }
  .feat-wide article { padding: 18px; gap: 14px; }
  .feat-wide .fi { width: 44px; height: 44px; font-size: 22px; }
  .offer-grid { gap: 10px; }
  .offer-grid div { padding: 16px 14px; }
  .offer-grid strong { font-size: 22px; }
  .pr { grid-template-columns: 1fr; gap: 2px; padding: 14px 18px; }
  .pr.head { display: none; }
  .final { padding: 80px 0 110px; }
  .float-cta { display: block; position: fixed; left: 16px; right: 16px; bottom: 14px; z-index: 60; text-align: center; background: var(--orange); color: #fff; font-weight: 700; border-radius: 999px; padding: 14px; box-shadow: 0 12px 30px rgba(255, 90, 46, .45); }
  .foot { padding-bottom: 90px; }
}
/* 機能カード 6 枚を 3 列で表示 */
.feat-grid.three { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 1020px) { .feat-grid.three { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 680px) { .feat-grid.three { grid-template-columns: 1fr; } }
/* 日本語の見出しはスマートフォンで折り返しを許可 */
@media (max-width: 680px) { .hero h1 .nb { white-space: normal; } }

/* フッターの法定表記リンク */
.foot-legal { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 26px; font-size: 13px; }
.foot-legal a { color: rgba(255, 255, 255, .72); }
.foot-legal a:hover { color: #fff; }

/* 法定表記ページ（特定商取引法に基づく表記・利用規約・プライバシーポリシー） */
body.legal { background: var(--paper); }
body.legal .nav { background: rgba(8, 19, 32, .96); }
.legal-main { padding: 112px 0 72px; }
.legal-main h1 { font-size: clamp(24px, 3.2vw, 34px); font-weight: 900; margin-bottom: 8px; }
.legal-main .legal-sub { color: var(--muted); font-size: 14px; margin-bottom: 28px; }
.legal-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--r); padding: 32px 36px; }
.legal-table { width: 100%; border-collapse: collapse; font-size: 15px; }
.legal-table th, .legal-table td { text-align: left; vertical-align: top; padding: 16px 12px; border-top: 1px solid var(--line); }
.legal-table tr:first-child th, .legal-table tr:first-child td { border-top: 0; }
.legal-table th { width: 30%; font-weight: 700; white-space: nowrap; color: var(--ink-2); }
.legal-body { font-size: 15px; }
.legal-body h2 { font-size: 18px; font-weight: 700; margin: 30px 0 10px; padding-left: 12px; border-left: 4px solid var(--orange); }
.legal-body h2:first-child { margin-top: 0; }
.legal-body p { margin: 0 0 12px; }
.legal-body ul, .legal-body ol { margin: 0 0 12px; padding-left: 1.5em; }
.legal-body li { margin-bottom: 6px; }
.legal-body a, .legal-table a { color: var(--orange); text-decoration: underline; }
.legal-body .note { background: #fff7e6; border: 1px solid #ffd8a8; border-radius: 10px; padding: 10px 14px; font-size: 13px; color: #8a4b00; }
.legal-back { margin-top: 24px; font-size: 14px; }
.legal-back a { color: var(--orange); }
@media (max-width: 680px) {
  .legal-main { padding: 88px 0 48px; }
  .legal-card { padding: 20px 18px; }
  .legal-table th, .legal-table td { display: block; width: auto; padding: 4px 0; border-top: 0; }
  .legal-table th { padding-top: 16px; border-top: 1px solid var(--line); white-space: normal; }
  .legal-table tr:first-child th { border-top: 0; padding-top: 0; }
}