:root {
  --navy: #1b2a5c;
  --navy-deep: #142047;
  --teal: #1f8a80;
  --teal-light: #e6f4f2;
  --green: #6cbf3f;
  --green-light: #eef7e3;
  --yellow: #fff2a8;
  --red: #d8453b;
  --ink: #24304a;
  --muted: #5d6880;
  --line: #dfe5ee;
  --bg: #ffffff;
  --bg-soft: #f4f7fb;
  --radius: 14px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  color: var(--ink); background: var(--bg);
  line-height: 1.8; font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--teal); }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 760px; }
section { padding: 64px 0; }
.soft { background: var(--bg-soft); }
.eyebrow { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .12em; color: var(--teal); margin-bottom: 8px; }
h1, h2, h3 { color: var(--navy); font-weight: 900; }
h2 { font-size: clamp(24px, 4.2vw, 32px); line-height: 1.45; margin: 0 0 16px; }
h3 { font-size: 18px; margin: 0 0 6px; line-height: 1.5; }
.lead { color: var(--muted); margin: 0 0 32px; }
.center { text-align: center; }
.mark { background: linear-gradient(transparent 60%, var(--yellow) 60%); }
.teal { color: var(--teal); }
.small { font-size: 13px; color: var(--muted); }

/* ボタン */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  background: linear-gradient(180deg, #f0663f, #d8453b);
  color: #fff; text-decoration: none; font-weight: 900; font-size: 18px;
  padding: 18px 40px; border-radius: 999px;
  box-shadow: 0 6px 0 #a8302a, 0 10px 24px rgba(216,69,59,.28);
  transition: transform .15s, box-shadow .15s;
}
.btn:hover { transform: translateY(2px); box-shadow: 0 4px 0 #a8302a, 0 8px 18px rgba(216,69,59,.25); }
.btn-note { font-size: 13px; color: var(--muted); margin-top: 14px; }

/* ヘッダー */
header.top { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.95); border-bottom: 1px solid var(--line); backdrop-filter: blur(6px); }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 900; color: var(--navy); font-size: 19px; text-decoration: none; line-height: 1.2; }
.brand img { width: 44px; }
.brand span { display: block; font-size: 11px; font-weight: 500; color: var(--muted); letter-spacing: .05em; }
.top-cta { background: var(--red); color: #fff; text-decoration: none; font-weight: 700; font-size: 14px; padding: 8px 18px; border-radius: 999px; white-space: nowrap; }

/* ヒーロー */
.hero { background: linear-gradient(160deg, var(--navy-deep) 0%, var(--navy) 55%, var(--teal) 100%); color: #fff; padding: 64px 0 72px; position: relative; overflow: hidden; }
.hero .tag { display: inline-block; background: var(--green); color: var(--navy); font-weight: 900; font-size: 13px; padding: 4px 14px; border-radius: 999px; }
.hero h1 { color: #fff; font-size: clamp(28px, 5.4vw, 46px); line-height: 1.35; margin: 16px 0 14px; }
.hero h1 em { font-style: normal; color: #ffe08a; }
.hero p { margin: 0 0 28px; font-size: 17px; opacity: .95; }
.hero .grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 32px; align-items: center; }
.hero .logo-box { background: #fff; border-radius: 24px; padding: 24px; max-width: 320px; justify-self: end; }

/* 先行価格 */
.price-box { background: #fff; border: 3px solid var(--red); border-radius: 20px; padding: 28px 24px; text-align: center; box-shadow: 0 10px 28px rgba(27,42,92,.08); }
.price-box .ribbon { display: inline-block; background: var(--red); color: #fff; font-weight: 900; padding: 4px 16px; border-radius: 999px; font-size: 14px; }
.price-box .p { font-size: clamp(36px, 7vw, 52px); font-weight: 900; color: var(--red); line-height: 1.2; margin: 10px 0 4px; }
.price-box .p small { font-size: 18px; color: var(--ink); }
.price-box .keep { font-weight: 900; color: var(--navy); font-size: 18px; }
.price-table { width: 100%; border-collapse: collapse; margin-top: 20px; font-size: 15px; }
.price-table th, .price-table td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; }
.price-table th { background: var(--teal-light); color: var(--navy); width: 42%; }

/* カード */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 20px; }
.card .ic { width: 46px; height: 46px; border-radius: 50%; background: var(--teal); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 12px; }
.card p { margin: 0; font-size: 15px; color: var(--muted); }

/* 流れ */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; counter-reset: s; }
.step { background: #fff; border-radius: var(--radius); padding: 20px; border-top: 5px solid var(--teal); }
.step b { display: block; color: var(--teal); font-size: 13px; letter-spacing: .1em; }
.step p { margin: 6px 0 0; font-size: 15px; color: var(--muted); }

/* 担当者 */
.profile { display: grid; grid-template-columns: 200px 1fr; gap: 28px; align-items: center; background: #fff; border-radius: 20px; padding: 28px; border: 1px solid var(--line); }
.profile .ph { width: 200px; height: 200px; border-radius: 50%; background: var(--teal-light) url(img/mark.png) center/70% no-repeat; }
.profile .name { font-size: 22px; font-weight: 900; color: var(--navy); }
.profile .role { color: var(--teal); font-weight: 700; font-size: 14px; }

/* 注意・FAQ */
.notice { background: var(--green-light); border-left: 6px solid var(--green); border-radius: 10px; padding: 18px 20px; font-size: 15px; }
.notice ul { margin: 6px 0 0; padding-left: 1.2em; }
details { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; margin-bottom: 10px; }
summary { font-weight: 700; color: var(--navy); cursor: pointer; }
details p { margin: 10px 0 0; font-size: 15px; color: var(--muted); }

/* 法定ページ */
.legal h1 { font-size: clamp(22px, 4vw, 30px); margin: 0 0 8px; }
.legal h2 { font-size: 19px; margin: 32px 0 8px; }
.legal p, .legal li { font-size: 15px; }
.legal table { width: 100%; border-collapse: collapse; margin-top: 16px; font-size: 15px; }
.legal th, .legal td { border: 1px solid var(--line); padding: 12px 14px; vertical-align: top; text-align: left; }
.legal th { background: var(--bg-soft); color: var(--navy); width: 30%; }
.todo { background: var(--yellow); font-weight: 700; padding: 0 4px; }

/* フッター */
footer { background: var(--navy-deep); color: #c9d2e6; padding: 36px 0 28px; font-size: 13px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 20px; justify-content: space-between; align-items: center; }
footer a { color: #fff; text-decoration: none; margin-right: 16px; }
footer .co { display: flex; align-items: center; gap: 12px; }
footer .co img { width: 44px; background: #fff; border-radius: 50%; padding: 4px; }

@media (max-width: 760px) {
  section { padding: 48px 0; }
  .hero .grid { grid-template-columns: 1fr; }
  .hero .logo-box { display: none; }
  .profile { grid-template-columns: 1fr; text-align: center; }
  .profile .ph { margin: 0 auto; width: 150px; height: 150px; }
  .brand span { display: none; }
  .legal th { width: 36%; }
}