:root{
  color-scheme: light only;
  --ink:#1f2733;
  --muted:#5b6b80;
  --line:#e4e9f0;
  --line2:#f0f2f6;
  --blue:#2353c9;
  --blue-deep:#1c3f9e;
  --navy:#1c3f9e;
  --hero-1:#1c3f9e;
  --hero-2:#2d5fd4;
  --tint:#eef3fc;
  --tint-2:#f4f8ff;
  --card:#ffffff;
  --r:12px;
  --maxw:1080px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{background:#fff}
section{background:#fff}
html{scroll-behavior:smooth}
body{
  background:#fff;color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Hiragino Sans","Noto Sans JP","Yu Gothic",Meiryo,sans-serif;
  line-height:1.85;font-feature-settings:"palt";-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.eyebrow{display:block;text-align:center;font-size:12px;letter-spacing:.22em;font-weight:700;color:var(--blue);text-transform:uppercase;margin-bottom:16px}
h1,h2,h3,h4{line-height:1.4;font-weight:700}
.sec-title{text-align:center;font-size:clamp(24px,3.2vw,32px);letter-spacing:.02em}
.sec-lead{text-align:center;color:var(--muted);font-size:15px;max-width:560px;margin:16px auto 0}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:.5em;font-weight:700;font-size:15px;padding:14px 26px;border-radius:8px;cursor:pointer;border:0;font-family:inherit;transition:.18s}
.btn .arr{transition:.18s}.btn:hover .arr{transform:translateX(3px)}
.btn-white{background:#fff;color:var(--blue-deep)}
.btn-white:hover{transform:translateY(-1px);box-shadow:0 10px 24px -12px rgba(0,0,0,.4)}
.btn-ghost-on-blue{background:rgba(255,255,255,.12);color:#fff;border:1.5px solid rgba(255,255,255,.5)}
.btn-ghost-on-blue:hover{background:rgba(255,255,255,.2)}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--blue-deep);transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--blue-deep);border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--blue)}

/* placeholder */
.ph{position:relative;background:repeating-linear-gradient(135deg,#dde6f4 0 12px,#d3deef 12px 24px);border-radius:10px;display:flex;align-items:center;justify-content:center;text-align:center;color:#7d8aa3;font-size:13px;font-weight:600;padding:16px}
.ph .ico{position:absolute;top:12px;left:14px;width:20px;height:20px;color:#9aa8c2}
.ph .ico svg{width:100%;height:100%}

/* ===== HERO ===== */
.hero{background:linear-gradient(135deg,var(--hero-1) 0%,var(--hero-1) 30%,var(--hero-2) 100%);color:#fff;padding:46px 0 64px}
.crumb{font-size:12px;color:rgba(255,255,255,.8);letter-spacing:.04em;margin-bottom:28px}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center}
.hero .label{font-size:13px;font-weight:700;letter-spacing:.08em;color:rgba(255,255,255,.85);margin-bottom:14px}
.hero h1{font-size:clamp(28px,4.4vw,42px);line-height:1.34;letter-spacing:.02em}
.hero p{color:rgba(255,255,255,.9);font-size:15.5px;margin-top:22px;max-width:480px}
.hero-cta{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.hero-photo{min-height:240px}
.hero-photo img{width:100%;height:100%;object-fit:cover;border-radius:10px;display:block}
/* hero: sub link / photo badge */
.hero-sublink{color:rgba(255,255,255,.85);font-weight:700;font-size:14.5px;align-self:center;text-decoration:underline;text-underline-offset:4px;transition:.15s}
.hero-sublink:hover{color:#fff}
.hero-visual{position:relative}
.hero-visual .hero-photo{min-height:300px}
.hp-badge{position:absolute;left:14px;bottom:14px;background:#fff;border-radius:10px;padding:12px 18px;box-shadow:0 12px 30px -12px rgba(0,0,0,.35);line-height:1.5}
.hp-badge .t{display:block;font-size:11px;font-weight:700;letter-spacing:.04em;color:var(--muted)}
.hp-badge .n{display:block;font-size:15px;font-weight:800;color:var(--ink);margin-top:2px}
.hp-badge .n em{font-style:normal;color:var(--blue);font-weight:400;margin:0 2px}
.hp-badge .n strong{font-size:22px;color:var(--blue)}
@media(max-width:880px){.hero-grid{grid-template-columns:1fr}}
/* context CTA */
.ctxcta{margin-top:52px;background:var(--tint);border:1px solid var(--line);border-radius:var(--r);padding:30px 34px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.ctxcta p{font-size:16.5px;font-weight:700;color:var(--ink)}
.ctxcta p small{display:block;font-size:13px;font-weight:400;color:var(--muted);margin-top:4px}
/* mobile fixed CTA bar */
.mcta{display:none;position:fixed;left:0;right:0;bottom:0;z-index:200;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-top:1px solid var(--line);padding:10px 14px calc(10px + env(safe-area-inset-bottom));gap:10px;transition:transform .25s}
.mcta.hide{transform:translateY(110%)}
.mcta a{flex:1;text-align:center;justify-content:center;font-size:14px;padding:13px 10px}
@media(max-width:760px){.mcta{display:flex}body{padding-bottom:68px}}
/* schedule "now" reminder */
.now-note{margin-top:26px;background:#fff;border:1.5px solid var(--blue);border-radius:var(--r);padding:20px 26px;display:flex;gap:14px;align-items:flex-start}
.now-note .badge{flex:0 0 auto;background:var(--blue);color:#fff;font-size:12px;font-weight:800;letter-spacing:.06em;padding:4px 12px;border-radius:20px;margin-top:2px}
.now-note p{font-size:14.5px;color:var(--ink);font-weight:600}
.now-note p a{color:var(--blue);font-weight:800}
.hero-photo.ph{background:repeating-linear-gradient(135deg,rgba(255,255,255,.16) 0 12px,rgba(255,255,255,.09) 12px 24px);color:rgba(255,255,255,.85)}
.hero-photo.ph .ico{color:rgba(255,255,255,.7)}

/* ===== WHY NOW (stats) ===== */
.why{padding:70px 0;border-bottom:1px solid var(--line)}
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:42px;text-align:center}
.wfig .n{font-size:clamp(28px,4vw,40px);font-weight:800;color:var(--navy);line-height:1.1}
.wfig .n em{font-style:normal;font-size:.5em;color:var(--blue);margin-left:2px}
.wfig .t{font-size:13px;color:var(--muted);font-weight:600;margin-top:8px;line-height:1.6}
.why-note{text-align:center;color:#9aa8c2;font-size:12px;margin-top:28px}
.market{margin-top:44px;background:var(--tint);border-radius:var(--r);padding:30px 28px;display:grid;grid-template-columns:auto 1fr;gap:28px;align-items:center}
.market .big{text-align:center;padding-right:24px;border-right:1px solid var(--line)}
.market .big .n{font-size:clamp(36px,6vw,56px);font-weight:800;color:var(--navy);line-height:1}
.market .big .n em{font-style:normal;font-size:.4em;color:var(--blue);margin-left:2px}
.market .big .c{font-size:12px;color:var(--muted);font-weight:600;margin-top:8px}
.market .txt p{font-size:15px;color:var(--ink);font-weight:700;line-height:1.7}
.market .txt .sub{font-size:13.5px;color:var(--muted);font-weight:400;margin-top:8px}
.market .src{font-size:11px;color:#9aa8c2;margin-top:10px}
@media(max-width:620px){.market{grid-template-columns:1fr;gap:18px}.market .big{border-right:0;border-bottom:1px solid var(--line);padding:0 0 18px}}

/* ===== PROBLEM ===== */
.problem{background:var(--tint);padding:72px 0}
.prob-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:44px}
.prob{background:#fff;border-radius:var(--r);padding:26px;display:grid;grid-template-columns:64px 1fr;gap:18px;box-shadow:0 2px 14px -10px rgba(31,87,196,.5)}
.prob-ic{width:64px;height:64px;border-radius:10px;background:var(--tint) url('img/icon_tangle.svg') center/28px 28px no-repeat;display:flex;align-items:center;justify-content:center;color:transparent;font-size:0;font-weight:600}
.prob h4{font-size:17px;margin-bottom:8px}
.prob p{color:var(--muted);font-size:14px}
.bridge{text-align:center;font-size:clamp(18px,2.4vw,23px);font-weight:700;margin-top:48px}
.bridge em{font-style:normal;color:var(--blue)}

/* ===== WHAT WE DO (zigzag) ===== */
.wwd{padding:80px 0}
.zig{display:grid;grid-template-columns:1fr 1fr;gap:40px 56px;align-items:center}
.zig + .zig{margin-top:36px}
.wwd .sec-lead{margin-bottom:56px}
.zig .photo{min-height:300px}
.zig .photo-real img{width:100%;height:100%;object-fit:cover;border-radius:10px;display:block}
.zig-text .no{font-size:13px;font-weight:800;letter-spacing:.1em;color:var(--blue)}
.zig-text h3{font-size:22px;margin-top:10px}
.zig-text p{color:var(--muted);font-size:14.5px;margin-top:12px}
.solves{display:inline-block;font-size:12.5px;font-weight:700;color:var(--blue);background:var(--tint);padding:6px 13px;border-radius:20px;margin-top:14px}
.zig .text-right{order:2}

/* SPECIALIZED (建設業特化の5つ) */
.spec{padding:80px 0;background:#fff}
.spec-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:46px}
.spec-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px;box-shadow:0 2px 14px -12px rgba(28,63,158,.4)}
.spec-card .sn{font-size:12.5px;font-weight:800;letter-spacing:.08em;color:var(--blue)}
.spec-card h4{font-size:17.5px;margin-top:8px;color:var(--ink)}
.spec-card p{color:var(--muted);font-size:14px;margin-top:10px}
.spec-card.wide{grid-column:1/-1}
.spec-note{text-align:center;color:var(--muted);font-size:14px;margin-top:34px;font-weight:600}
@media(max-width:880px){.spec-grid{grid-template-columns:1fr}}

/* ===== FLOW ===== */
.flow{padding:74px 0;background:var(--tint-2)}
.flow-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:46px;border-top:1px solid var(--line)}
.fstep{padding:24px 22px 8px;border-right:1px solid var(--line)}
.fstep:last-child{border-right:0}
.fstep .no{font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--blue)}
.fstep h4{font-size:16px;margin-top:8px}
.fstep p{color:var(--muted);font-size:13px;margin-top:8px}
.flow-note{text-align:center;color:var(--muted);font-size:13.5px;margin-top:28px}

/* ===== CASE ===== */
.case{padding:80px 0}
.ba{display:flex;align-items:center;justify-content:center;gap:22px;margin-top:48px;flex-wrap:wrap}
.ba .num{font-size:clamp(40px,7vw,72px);font-weight:800;line-height:1;color:var(--navy)}
.ba .num .lab{display:block;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--muted);margin-bottom:6px}
.ba .num.to{color:var(--blue)}
.ba .arrow{font-size:38px;color:var(--blue);font-weight:300}
.ba-sub{text-align:center;color:var(--muted);font-size:14.5px;max-width:540px;margin:16px auto 0}
.case-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:42px auto 0;max-width:760px}
.cstat{text-align:center;background:var(--tint);border-radius:var(--r);padding:24px 16px}
.cstat .n{font-size:clamp(26px,3.6vw,34px);font-weight:800;color:var(--navy);line-height:1.1}
.cstat .n em{font-style:normal;font-size:.5em;color:var(--blue);margin-left:2px}
.cstat .t{font-size:13px;color:var(--muted);font-weight:600;margin-top:8px;line-height:1.6}
.founder{display:grid;grid-template-columns:280px 1fr;gap:44px;margin-top:50px;align-items:start}
.founder-photo{border-radius:var(--r);min-height:300px;position:relative;overflow:hidden}
.founder-photo img{width:100%;height:100%;object-fit:cover;display:block}
.founder-photo::before{content:none}
.founder-body .lede{font-size:18px;font-weight:700;line-height:1.7;color:var(--ink)}
.founder-body p{font-size:15px;color:var(--muted);margin-top:16px;line-height:1.95}
.founder-body .turn{color:var(--ink);font-weight:700;border-left:3px solid var(--blue);padding-left:18px;margin-top:20px}
.founder-body .turn .hl{color:var(--navy)}
.founder-sign{margin-top:24px;font-size:13.5px;color:var(--muted)}
.case-note{text-align:center;color:#9aa8c2;font-size:12px;margin-top:24px}

/* ===== MID CTA ===== */
.midcta{padding:0 0 80px}
.midcta-inner{background:linear-gradient(135deg,var(--hero-1) 0%,var(--hero-1) 30%,var(--hero-2) 100%);color:#fff;border-radius:var(--r);padding:40px;display:grid;grid-template-columns:1.3fr 1fr;gap:28px;align-items:center}
.midcta-inner h3{font-size:clamp(19px,2.4vw,24px);line-height:1.5}
.midcta-inner p{color:rgba(255,255,255,.88);font-size:14px;margin-top:8px}
.midcta-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end}

/* ===== ABOUT ===== */
.about{padding:74px 0;border-top:1px solid var(--line)}
.about-inner{max-width:720px;margin:0 auto;text-align:center}
.about-inner p{color:var(--muted);font-size:15.5px;margin-top:16px;line-height:1.95}
.about-inner p.lead{color:var(--ink);font-size:17px;font-weight:700;line-height:1.7}
.about-link{display:inline-flex;align-items:center;gap:6px;color:var(--blue);font-weight:700;font-size:14px;margin-top:22px}
.about-link .arr{transition:.18s}.about-link:hover .arr{transform:translateX(3px)}

/* ===== FAQ ===== */

/* ===== PRICE GUIDE ===== */
.price-guide{padding:74px 0}
.pg-list{max-width:820px;margin:36px auto 0;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff}
.pg-row{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:22px 28px}
.pg-row + .pg-row{border-top:1px solid var(--line)}
.pg-name{font-weight:700;color:var(--ink);font-size:16px}
.pg-name small{display:block;font-weight:400;font-size:12.5px;color:var(--muted);margin-top:4px;line-height:1.7}
.pg-price{font-weight:800;color:var(--ink);font-size:22px;white-space:nowrap}
.pg-price span{font-size:14px;font-weight:700;color:var(--muted);margin-left:2px}
.pg-note{max-width:820px;margin:14px auto 0;font-size:12.5px;color:var(--muted);line-height:1.9}
.pg-price small{display:block;font-size:12px;font-weight:700;color:var(--muted);margin-top:3px;white-space:nowrap}
.pg-row.pg-pick{background:var(--tint-2);border-left:3px solid var(--blue)}
.pg-badge{display:inline-block;font-size:11px;font-weight:800;color:#fff;background:var(--blue);border-radius:999px;padding:2px 10px;margin-right:8px;vertical-align:2px}
@media(max-width:760px){.pg-row{flex-direction:column;align-items:flex-start;gap:6px;padding:18px 20px}}

.faq{padding:74px 0;background:var(--tint)}
.qa{background:#fff;border-radius:10px;margin-top:14px;padding:4px 22px;box-shadow:0 2px 12px -10px rgba(31,87,196,.5)}
.qa summary{cursor:pointer;list-style:none;padding:18px 36px 18px 0;font-weight:700;font-size:15.5px;position:relative}
.qa summary::-webkit-details-marker{display:none}
.qa summary .q{color:var(--blue);font-weight:800;margin-right:8px}
.qa summary::after{content:"+";position:absolute;right:4px;top:15px;font-size:22px;font-weight:400;color:var(--blue);transition:.2s}
.qa[open] summary::after{transform:rotate(45deg)}
.qa p{color:var(--muted);font-size:14px;padding:0 0 20px}

/* ===== FINAL CTA ===== */
.final{background:linear-gradient(135deg,var(--hero-1) 0%,var(--hero-1) 30%,var(--hero-2) 100%);color:#fff;padding:72px 24px;text-align:center}
.final h2{font-size:clamp(22px,3vw,30px);letter-spacing:.02em}
.final p{color:rgba(255,255,255,.9);max-width:560px;margin:18px auto 30px;font-size:15px}
.final-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

@media(max-width:880px){
  .hero-grid,.zig,.founder,.midcta-inner{grid-template-columns:1fr}
  .zig .text-right{order:0}
  .zig .photo{min-height:220px}
  .why-grid{grid-template-columns:1fr}
  .case-stats{grid-template-columns:1fr}
  .prob-grid{grid-template-columns:1fr}
  .flow-steps{grid-template-columns:1fr 1fr}
  .fstep{border-bottom:1px solid var(--line)}
  .fstep:nth-child(even){border-right:0}
  .midcta-actions{justify-content:flex-start}
  .founder-photo{min-height:220px}
}
@media(max-width:520px){
  .flow-steps{grid-template-columns:1fr}
  .fstep{border-right:0}
  .prob{grid-template-columns:1fr}
}
/* ===== FOOTER ===== */
.foot{background:#1c3f9e;color:#cdd6e6;padding:56px 0 28px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.foot-brand{font-weight:800;font-size:19px;color:#fff;letter-spacing:.02em}
.foot-brand span{color:#9dc0ff}
.foot-brand p{color:#cdd9f3;font-size:13.5px;font-weight:400;margin-top:12px;line-height:1.8;max-width:300px}
.foot h4{font-size:12px;letter-spacing:.1em;color:#a9bce6;text-transform:uppercase;margin-bottom:14px;font-weight:700}
.foot ul{list-style:none}
.foot li{margin-bottom:10px}
.foot a{color:#cdd6e6;font-size:14px;text-decoration:none;transition:.15s}
.foot a:hover{color:#fff}
.foot .other{color:#cdd9f3;font-size:13px;line-height:1.7}
.foot-bottom{max-width:var(--maxw);margin:40px auto 0;padding:20px 24px 0;border-top:1px solid rgba(255,255,255,.18);font-size:12.5px;color:#b9c8ea}
@media(max-width:760px){.foot-grid{grid-template-columns:1fr;gap:30px}}