:root {
  --bg: #f4fbff;
  --panel: rgba(255, 255, 255, .82);
  --panel-strong: #ffffff;
  --text: #102333;
  --muted: #62768a;
  --line: rgba(16, 35, 51, .12);
  --primary: #11b8d8;
  --accent: #25d68b;
  --gold: #ffc857;
  --danger: #ff6178;
  --shadow: 0 24px 70px rgba(25, 60, 95, .16);
  --radius: 18px;
}

[data-theme="dark"] {
  --bg: #06111d;
  --panel: rgba(13, 31, 48, .82);
  --panel-strong: #0d1f30;
  --text: #eef7ff;
  --muted: #a8b9c8;
  --line: rgba(255, 255, 255, .13);
  --shadow: 0 24px 80px rgba(0, 0, 0, .34);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 8%, rgba(17, 184, 216, .20), transparent 28%),
    radial-gradient(circle at 82% 12%, rgba(37, 214, 139, .18), transparent 26%),
    linear-gradient(135deg, var(--bg), #ffffff 54%, #eefbff);
  font-family: Inter, "Noto Sans JP", "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.75;
  overflow-x: hidden;
}
[data-theme="dark"] body {
  background:
    radial-gradient(circle at 18% 8%, rgba(17, 184, 216, .20), transparent 28%),
    radial-gradient(circle at 82% 12%, rgba(37, 214, 139, .15), transparent 26%),
    linear-gradient(135deg, #06111d, #102338 54%, #07121f);
}
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; color: inherit; }
img { max-width: 100%; display: block; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 12px clamp(18px, 4vw, 46px);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel-strong), transparent 16%);
  backdrop-filter: blur(18px);
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 900; letter-spacing: .02em; white-space: nowrap; }
.brand-mark { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 12px; color: #06111d; background: linear-gradient(135deg, var(--primary), var(--accent)); box-shadow: 0 14px 34px rgba(17, 184, 216, .25); }
.nav { display: flex; align-items: center; justify-content: center; gap: 4px; flex-wrap: wrap; }
.nav a { padding: 8px 9px; border-radius: 999px; color: var(--muted); font-size: 13px; transition: .2s; }
.nav a:hover, .nav a.active { color: var(--text); background: color-mix(in srgb, var(--primary), transparent 88%); }
.header-actions { display: flex; align-items: center; gap: 8px; }
.ghost-btn, .menu-btn {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--panel), transparent 12%);
  padding: 9px 12px;
  cursor: pointer;
  transition: .2s;
}
.ghost-btn:hover, .menu-btn:hover { transform: translateY(-1px); border-color: color-mix(in srgb, var(--primary), transparent 40%); }
.menu-btn { display: none; width: 42px; height: 42px; padding: 9px; }
.menu-btn span { display: block; height: 2px; margin: 5px 0; background: var(--text); border-radius: 2px; }

.section { width: min(1180px, calc(100% - 32px)); margin: 0 auto; padding: 96px 0; scroll-margin-top: 88px; }
.hero { min-height: 100vh; display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: 44px; padding-top: 124px; }
.eyebrow { display: inline-flex; padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px; color: var(--primary); background: color-mix(in srgb, var(--primary), transparent 91%); font-weight: 800; font-size: 13px; }
h1 { margin: 18px 0 18px; font-size: clamp(44px, 7vw, 82px); line-height: 1.04; letter-spacing: 0; }
h2 { margin: 0; font-size: clamp(30px, 4.5vw, 52px); line-height: 1.15; letter-spacing: 0; }
h3 { margin: 0 0 10px; line-height: 1.3; }
p { color: var(--muted); }
.hero-copy p { font-size: clamp(17px, 2vw, 22px); max-width: 720px; }
.hero-actions, .dual-btn { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.btn, .service-card a, .case-card button, .mini-tool button, .download-card button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 12px 18px;
  background: var(--panel);
  cursor: pointer;
  transition: transform .2s, border-color .2s, box-shadow .2s, background .2s;
  font-weight: 800;
}
.btn:hover, .service-card a:hover, .case-card button:hover, .mini-tool button:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--primary), transparent 35%); box-shadow: 0 16px 34px rgba(17, 184, 216, .16); }
.primary { color: #06111d; border: 0; background: linear-gradient(135deg, var(--primary), var(--accent)); }
.trust-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.trust-row span, .chips span { padding: 8px 11px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); background: var(--panel); font-size: 13px; }
.hero-visual { position: relative; }
.hero-visual::before { content: ""; position: absolute; inset: 8% -4% -4% 12%; z-index: -1; border-radius: 36px; background: linear-gradient(135deg, rgba(17, 184, 216, .22), rgba(37, 214, 139, .18)); filter: blur(20px); }
.hero-visual img { border-radius: 32px; box-shadow: var(--shadow); }

.section-title { display: grid; gap: 12px; max-width: 860px; margin-bottom: 28px; }
.section-title span { color: var(--primary); font-size: 12px; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.section-title p { max-width: 760px; margin: 0; }
.muted-band { width: 100%; max-width: none; padding-left: max(16px, calc((100% - 1180px) / 2)); padding-right: max(16px, calc((100% - 1180px) / 2)); background: color-mix(in srgb, var(--panel), transparent 20%); border-block: 1px solid var(--line); }

.cards { display: grid; gap: 16px; }
.six { grid-template-columns: repeat(3, 1fr); }
.service-grid { grid-template-columns: repeat(3, 1fr); }
.card, .service-card, .price-card, .case-card, .flow-item, .mini-tool, .download-card, .about-card, .simulator, .option-simulator, .contact-form, .thanks, .map-box, .qr-box, .phone-preview, .compare-card, .anxiety-card, .pricing-cta, .contact-methods article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}
.card { padding: 24px; }
.card b { color: var(--accent); font-size: 28px; }
.target-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.target { min-height: 108px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 18px; background: linear-gradient(135deg, color-mix(in srgb, var(--primary), transparent 88%), color-mix(in srgb, var(--accent), transparent 90%)); font-weight: 900; }
.service-card { padding: 24px; display: grid; gap: 10px; align-content: start; }
.service-card span { font-size: 28px; }
.service-card a { width: fit-content; padding: 9px 13px; font-size: 14px; }

.compare-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.compare-card { padding: 26px; }
.check-list, .x-list { display: grid; gap: 10px; list-style: none; padding: 0; margin: 0; }
.check-list li, .x-list li { position: relative; padding-left: 30px; color: var(--muted); }
.check-list li::before, .x-list li::before {
  position: absolute;
  left: 0;
  top: 0;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-size: 13px;
  font-weight: 900;
}
.check-list li::before { content: "✓"; color: #06111d; background: var(--accent); }
.x-list li::before { content: "−"; color: white; background: var(--danger); }
.anxiety-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.anxiety-card { padding: 22px; }

.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: stretch; }
.price-card { position: relative; padding: 26px; }
.price-card.featured { transform: translateY(-8px); border-color: color-mix(in srgb, var(--accent), transparent 35%); }
.badge { position: absolute; top: 18px; right: 18px; color: #06111d; background: var(--gold); border-radius: 999px; padding: 5px 10px; font-size: 12px; font-weight: 900; }
.price { font-size: 42px; font-weight: 900; color: var(--primary); margin: 10px 0; }
.price span { font-size: 16px; color: var(--muted); }
ul { padding-left: 18px; color: var(--muted); }
.pricing-cta { margin-top: 24px; padding: 26px; display: flex; align-items: center; justify-content: space-between; gap: 18px; background: linear-gradient(135deg, color-mix(in srgb, var(--primary), transparent 82%), color-mix(in srgb, var(--accent), transparent 85%)); }
.pricing-cta h3 { margin: 0; max-width: 680px; }
.option-simulator { display: grid; grid-template-columns: 1fr 360px; gap: 20px; margin-top: 24px; padding: 24px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.simulator { padding: 20px; box-shadow: none; display: grid; gap: 8px; }
.simulator label { display: flex; align-items: center; gap: 8px; color: var(--muted); }
.sim-total { display: flex; align-items: center; justify-content: space-between; margin-top: 10px; padding-top: 12px; border-top: 1px solid var(--line); }
.sim-total strong { font-size: 28px; color: var(--accent); }

.case-grid { display: grid; grid-template-columns: repeat(5, minmax(210px, 1fr)); gap: 16px; overflow-x: auto; padding-bottom: 10px; }
.case-card { min-width: 210px; overflow: hidden; padding: 0 0 18px; }
.case-card img { aspect-ratio: 16/10; object-fit: cover; }
.case-card h3, .case-card p, .case-card button { margin-left: 16px; margin-right: 16px; }
.case-card p { font-size: 14px; }

.flow { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.flow::before { content: ""; position: absolute; left: 4%; right: 4%; top: 48px; height: 2px; background: linear-gradient(90deg, transparent, var(--primary), var(--accent), transparent); opacity: .55; }
.flow-item { padding: 22px; position: relative; }
.flow-item b { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 50%; color: #06111d; background: linear-gradient(135deg, var(--primary), var(--accent)); margin-bottom: 12px; }

.feature-showcase { display: grid; grid-template-columns: .8fr 1fr .8fr; gap: 16px; margin-bottom: 20px; }
.phone-preview { padding: 18px; width: min(280px, 100%); justify-self: center; }
.phone-top { width: 72px; height: 8px; border-radius: 999px; margin: 0 auto 12px; background: var(--line); }
.phone-screen { min-height: 360px; display: grid; place-items: center; text-align: center; border-radius: 28px; background: linear-gradient(160deg, var(--primary), var(--accent)); color: #06111d; padding: 24px; }
.phone-screen p { color: rgba(6, 17, 29, .72); }
.phone-screen a { padding: 10px 18px; border-radius: 999px; background: #fff; font-weight: 900; }
.map-box, .qr-box, .mini-tool { padding: 20px; }
.fake-map { height: 220px; display: grid; place-items: center; border-radius: 18px; color: #06111d; background: repeating-linear-gradient(45deg, #dff8ff 0 18px, #c7f5df 18px 36px); font-weight: 900; font-size: 40px; }
.qr { width: 180px; height: 180px; display: grid; place-items: center; margin: 12px auto; color: #06111d; background: conic-gradient(from 90deg, #111 0 25%, #fff 0 50%, #111 0 75%, #fff 0); border: 14px solid #fff; box-shadow: var(--shadow); font-weight: 900; }
.tool-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.mini-tool input, .mini-tool textarea, .contact-form input, .contact-form textarea, .contact-form select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: color-mix(in srgb, var(--panel-strong), transparent 18%);
  padding: 11px 12px;
  margin: 6px 0;
  outline: none;
}
.mini-tool textarea, .contact-form textarea { min-height: 110px; resize: vertical; }
.output { margin-top: 10px; min-height: 70px; white-space: pre-wrap; border: 1px solid var(--line); border-radius: 12px; background: color-mix(in srgb, var(--panel-strong), transparent 22%); padding: 12px; color: var(--muted); overflow: auto; }
mark { background: var(--gold); color: #06111d; border-radius: 4px; padding: 0 2px; }
.news { margin-bottom: 0; }

.faq-list { display: grid; gap: 10px; }
.faq-item { border: 1px solid var(--line); border-radius: 14px; background: var(--panel); overflow: hidden; }
.faq-item button { width: 100%; border: 0; background: transparent; padding: 18px; display: flex; justify-content: space-between; text-align: left; cursor: pointer; font-weight: 900; }
.faq-item p { display: none; margin: 0; padding: 0 18px 18px; }
.faq-item.open p { display: block; }

.about-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 24px; align-items: start; }
.about-card { padding: 24px; }
.download-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.download-card { padding: 22px; }
.disabled-download { opacity: .76; }
.download-card p { min-height: 58px; }

.contact-section { padding-bottom: 56px; }
.contact-form { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; padding: 24px; }
.contact-form label { color: var(--muted); font-weight: 800; }
.full { grid-column: 1 / -1; }
.thanks { display: none; padding: 38px; text-align: center; margin-top: 20px; }
.thanks.show { display: block; animation: rise .4s ease both; }
.contact-methods { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 18px; }
.contact-methods article { padding: 22px; }
.contact-methods a { color: var(--primary); font-weight: 900; overflow-wrap: anywhere; }

.modal { position: fixed; inset: 0; z-index: 200; display: none; place-items: center; padding: 22px; background: rgba(0, 0, 0, .58); }
.modal.open { display: grid; }
.modal-panel { width: min(760px, 100%); max-height: 90vh; overflow: auto; border: 1px solid var(--line); border-radius: 24px; background: var(--panel-strong); box-shadow: var(--shadow); padding: 20px; position: relative; }
.modal-panel img { border-radius: 18px; margin-bottom: 18px; }
.modal-close { position: absolute; right: 16px; top: 16px; width: 42px; height: 42px; border: 0; border-radius: 50%; background: rgba(0, 0, 0, .45); color: white; cursor: pointer; font-size: 24px; }
.case-detail-list { display: grid; gap: 14px; }
.case-detail-list section { border: 1px solid var(--line); border-radius: 14px; padding: 14px; background: color-mix(in srgb, var(--panel), transparent 18%); }
.case-detail-list h4 { margin: 0 0 6px; color: var(--primary); }
.case-detail-list p { margin: 0; }

.to-top { position: fixed; right: 18px; bottom: 18px; z-index: 80; width: 48px; height: 48px; border: 0; border-radius: 50%; color: #06111d; background: linear-gradient(135deg, var(--primary), var(--accent)); box-shadow: var(--shadow); cursor: pointer; opacity: 0; pointer-events: none; transition: .2s; }
.to-top.show { opacity: 1; pointer-events: auto; }
.footer { border-top: 1px solid var(--line); text-align: center; padding: 28px; color: var(--muted); }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
.reveal.show { opacity: 1; transform: none; }
@keyframes rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }

@media (max-width: 1080px) {
  .nav { position: fixed; top: 72px; right: 16px; width: min(360px, calc(100% - 32px)); display: none; flex-direction: column; align-items: stretch; padding: 16px; border: 1px solid var(--line); border-radius: 20px; background: var(--panel-strong); box-shadow: var(--shadow); }
  .nav.open { display: flex; }
  .menu-btn { display: block; }
  .hero, .six, .service-grid, .pricing-grid, .option-simulator, .feature-showcase, .tool-grid, .about-grid, .download-grid, .contact-form, .compare-grid, .anxiety-grid, .contact-methods { grid-template-columns: 1fr; }
  .pricing-cta { align-items: stretch; flex-direction: column; }
  .target-grid { grid-template-columns: repeat(3, 1fr); }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .flow::before { display: none; }
}
@media (max-width: 640px) {
  .site-header { padding: 10px 14px; }
  .brand span:last-child { display: none; }
  .ghost-btn { padding: 8px 10px; font-size: 13px; }
  .section { width: min(100% - 24px, 1180px); padding: 72px 0; }
  .hero { padding-top: 112px; }
  h1 { font-size: 42px; }
  .target-grid, .flow { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: 1fr; overflow: visible; }
  .case-card { min-width: 0; }
}