:root{
 --navy:#102a43;--navy2:#173f5f;--blue:#1769aa;--blue2:#2f80c7;
 --sky:#eef7ff;--sky2:#f7fbff;--text:#25313c;--sub:#627181;
 --line:#dfe7ee;--green:#2f8f75;--purple:#6958b5;--shadow:0 12px 34px rgba(22,55,82,.09)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
 margin:0;color:var(--text);background:#fff;line-height:1.85;
 font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif
}
a{color:var(--blue)}
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(8px)}
.header-inner{width:min(1160px,calc(100% - 34px));margin:auto;min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:30px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--navy);white-space:nowrap}
.brand-mark{width:42px;height:42px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(135deg,var(--navy),var(--blue2));color:#fff;font-weight:800;font-size:1.2rem;box-shadow:0 6px 16px rgba(23,105,170,.20)}
.brand-main{display:block;font-size:1.05rem;font-weight:800;line-height:1.15}
.brand-sub{display:block;margin-top:3px;color:#7a8997;font-size:.66rem}
.global-nav{display:flex;align-items:center;gap:5px}
.global-nav a{padding:9px 11px;color:#384a59;text-decoration:none;font-size:.9rem;font-weight:650;border-radius:8px}
.global-nav a:hover,.global-nav a.current{color:var(--blue);background:#eef6fc}
.global-nav .nav-contact{margin-left:7px;padding:10px 16px;color:#fff;background:var(--blue)}
.wrap{width:min(1080px,calc(100% - 34px));margin:auto}
.breadcrumb{padding:17px 0;color:#7c8995;font-size:.86rem}
.breadcrumb a{color:#687785;text-decoration:none}

/* hero */
.hero{position:relative;overflow:hidden;color:#fff;background:
 radial-gradient(circle at 82% 20%,rgba(120,205,255,.20),transparent 25%),
 radial-gradient(circle at 68% 90%,rgba(116,89,190,.20),transparent 30%),
 linear-gradient(135deg,#102a43 0%,#173f5f 52%,#1769aa 100%)}
.hero-inner{width:min(1080px,calc(100% - 34px));margin:auto;padding:78px 0 74px;display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center}
.hero-kicker{margin:0 0 12px;color:#a9daf5;font-size:.8rem;font-weight:800;letter-spacing:.15em}
.hero h1{margin:0 0 18px;font-size:clamp(2.35rem,5vw,3.9rem);line-height:1.18}
.hero h1 span{display:block;margin-top:9px;color:#d7effd;font-size:.43em;font-weight:650}
.hero .lead{margin:0;color:#eaf5fb;font-size:1.08rem}
.ai-window{padding:22px;border:1px solid rgba(255,255,255,.22);border-radius:20px;background:rgba(255,255,255,.10);box-shadow:0 24px 60px rgba(0,0,0,.15);backdrop-filter:blur(8px)}
.ai-title{display:flex;align-items:center;gap:10px;margin-bottom:17px;color:#fff;font-weight:800}
.ai-dot{width:11px;height:11px;border-radius:50%;background:#72dbba;box-shadow:0 0 0 5px rgba(114,219,186,.13)}
.chat{padding:13px 15px;margin:10px 0;border-radius:14px;font-size:.9rem;line-height:1.6}
.chat.user{margin-left:30px;background:#fff;color:#314656}
.chat.ai{margin-right:20px;background:#dff2ff;color:#244257}
.ai-note{margin:15px 0 0;color:#d5eaf6;font-size:.77rem}

/* common */
.section{padding:72px 0}
.section.soft{background:var(--sky2)}
.section.blue{background:linear-gradient(180deg,#f1f8fe,#fff)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:11px;color:var(--blue);font-size:.78rem;font-weight:800;letter-spacing:.14em}
.eyebrow:before{content:"";width:28px;height:2px;background:var(--blue2)}
.section-title{margin:0 0 18px;color:var(--navy);font-size:clamp(1.65rem,3vw,2.25rem);line-height:1.45}
.section-lead{max-width:860px;margin:0 0 34px;color:#586979;font-size:1.02rem}
p{margin:0 0 1.2em}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{padding:27px 24px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:0 7px 22px rgba(22,55,82,.05)}
.card-icon{width:49px;height:49px;margin-bottom:16px;display:grid;place-items:center;border-radius:13px;background:#eaf5fd;font-size:1.4rem}
.card:nth-child(2) .card-icon{background:#eef8ef}
.card:nth-child(3) .card-icon{background:#f0efff}
.card:nth-child(4) .card-icon{background:#fff5e8}
.card:nth-child(5) .card-icon{background:#eef8f7}
.card:nth-child(6) .card-icon{background:#fff0f4}
.card h3{margin:0 0 8px;color:var(--navy);font-size:1.08rem}
.card p{margin:0;color:#60717f;font-size:.92rem}

/* flow */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.flow-item{position:relative;padding:25px 21px;border:1px solid var(--line);border-radius:15px;background:#fff}
.flow-no{display:inline-grid;place-items:center;width:34px;height:34px;margin-bottom:13px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;font-size:.85rem}
.flow-item h3{margin:0 0 8px;color:var(--navy);font-size:1.03rem}
.flow-item p{margin:0;color:#61717f;font-size:.89rem}

/* examples */
.question-box{padding:30px;border-radius:18px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
.question-box h3{margin:0 0 17px;color:var(--navy)}
.questions{list-style:none;padding:0;margin:0}
.questions li{position:relative;padding:11px 0 11px 35px;border-bottom:1px dashed #dce5ec}
.questions li:last-child{border-bottom:0}
.questions li:before{content:"Q";position:absolute;left:0;top:12px;width:23px;height:23px;display:grid;place-items:center;border-radius:7px;background:#e8f4fc;color:var(--blue);font-weight:800;font-size:.72rem}
.answer-box{padding:30px;border-radius:18px;color:#fff;background:linear-gradient(135deg,var(--navy),var(--navy2));box-shadow:var(--shadow)}
.answer-box h3{margin:0 0 14px}
.answer-box p{color:#dcebf4}
.answer-box ul{padding-left:1.3em;color:#e3f0f7}

/* improve */
.improve-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.improve{padding:26px;border-radius:16px;background:#fff;border:1px solid var(--line)}
.improve .label{display:inline-block;margin-bottom:10px;padding:4px 9px;border-radius:999px;background:#eaf5fd;color:var(--blue);font-size:.75rem;font-weight:800}
.improve h3{margin:0 0 8px;color:var(--navy)}
.improve p{margin:0;color:#61717f;font-size:.91rem}
.caution{margin-top:32px;padding:26px 29px;border-left:4px solid #e3a33c;background:#fff8ec;border-radius:0 14px 14px 0}
.caution strong{color:#7a5316}

/* FAQ */
.faq{max-width:920px;margin:auto}
.faq-item{padding:23px 0;border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{position:relative;margin:0 0 9px;padding-left:39px;color:var(--navy);font-size:1.08rem;font-weight:800}
.faq-q:before{content:"Q";position:absolute;left:0;top:-1px;width:28px;height:28px;display:grid;place-items:center;border-radius:8px;color:#fff;background:var(--blue);font-size:.82rem}
.faq-a{margin:0;padding-left:39px;color:#5c6d7c}

/* CTA */
.contact-cta{padding:70px 0;color:#fff;text-align:center;background:linear-gradient(135deg,#0f263a 0%,#153d5b 60%,#1769aa 120%)}
.contact-inner{width:min(900px,calc(100% - 34px));margin:auto}
.contact-label{margin:0 0 8px;color:#9fd8f5;font-size:.78rem;font-weight:800;letter-spacing:.14em}
.contact-cta h2{margin:0 0 15px;font-size:clamp(1.8rem,4vw,2.55rem)}
.contact-cta p{color:#d9e9f2}
.button-row{margin-top:26px;display:flex;justify-content:center;flex-wrap:wrap;gap:12px}
.btn{display:inline-block;padding:12px 24px;border-radius:9px;text-decoration:none;font-weight:800}
.btn-primary{color:var(--navy);background:#fff}
.btn-secondary{color:#fff;border:1px solid rgba(255,255,255,.42);background:rgba(255,255,255,.07)}
.site-footer{padding:32px 0;color:#82909e;background:#0b1d2c}
.footer-inner{width:min(1080px,calc(100% - 34px));margin:auto;display:flex;justify-content:space-between;align-items:center;gap:25px}
.footer-brand{margin:0;color:#e3edf4;font-weight:750}
.footer-sub{margin:3px 0 0;font-size:.76rem}
.footer-links{display:flex;flex-wrap:wrap;gap:18px}
.footer-links a{color:#acbac5;text-decoration:none;font-size:.85rem}

@media(max-width:920px){
 .global-nav a:not(.nav-contact){display:none}
 .hero-inner{grid-template-columns:1fr}
 .ai-window{max-width:560px}
 .card-grid{grid-template-columns:repeat(2,1fr)}
 .flow{grid-template-columns:repeat(2,1fr)}
 .improve-grid{grid-template-columns:1fr}
}
@media(max-width:700px){
 .header-inner{min-height:66px}.brand-sub{display:none}.brand-mark{width:38px;height:38px}
 .global-nav .nav-contact{padding:9px 12px;font-size:.82rem}
 .hero-inner{padding:50px 0 54px}.section{padding:52px 0}
 .two-col,.card-grid,.flow{grid-template-columns:1fr}
 .footer-inner{display:block;text-align:center}.footer-links{justify-content:center;margin-top:17px}
}

.ai-local-intro{margin-top:18px;font-size:.98rem}

/* live example */
.live-example{display:grid;grid-template-columns:1.25fr .75fr;gap:28px;padding:32px;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:var(--shadow)}
.live-example-label{display:inline-block;margin:0 0 8px;padding:4px 10px;border-radius:999px;background:#eaf5fd;color:var(--blue);font-size:.76rem;font-weight:800}
.live-example h3{margin:0 0 12px;color:var(--navy);font-size:1.35rem}
.live-example p{margin:0 0 10px;color:#5d6f7d}
.live-example-note{font-size:.84rem;color:#788794!important}
.live-example-links{display:grid;gap:12px;align-content:center}
.live-example-link{display:block;padding:18px 20px;border:1px solid #cfe0ec;border-radius:13px;background:#f7fbfe;text-decoration:none;transition:.2s}
.live-example-link:hover{transform:translateY(-2px);border-color:var(--blue);box-shadow:0 7px 18px rgba(23,105,170,.10)}
.live-example-link strong{display:block;margin-bottom:4px;color:var(--navy)}
.live-example-link span{color:var(--blue);font-size:.88rem;font-weight:700}
@media(max-width:760px){.live-example{grid-template-columns:1fr;padding:24px}}