/* zaico風：白・余白・信頼感 + 左右広告レール想定 */
:root {
  --bg: #f5f8fc;
  --white: #ffffff;
  --text: #1a2332;
  --muted: #5c6b7a;
  --border: #e2e8f0;
  --blue: #f97316;       /* ベースオレンジ（ベース） */
  --blue-dark: #ea580c;
  --blue-soft: #fff7ed;
  --navy: #1c1917;
  --sky: #fff4e8;
  --ok: #ea580c;
  --radius: 16px;
  --shadow: 0 8px 30px rgba(15, 23, 42, 0.06);
  --rail: 160px;
  --main: 760px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Noto Sans JP", "Hiragino Sans", "Segoe UI", "Yu Gothic UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ===== 3カラム：左広告 / 本文 / 右広告 ===== */
.shell {
  display: grid;
  grid-template-columns: var(--rail) minmax(0, var(--main)) var(--rail);
  gap: 20px;
  max-width: calc(var(--main) + var(--rail) * 2 + 40px);
  margin: 0 auto;
  padding: 0 16px 48px;
  align-items: start;
}
.rail {
  position: sticky;
  top: 16px;
  padding-top: 16px;
}
.rail .ad-box {
  min-height: 600px;
  background: var(--white);
  border: 1px dashed #c9d4e0;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: 10px 8px;
  color: #9aa8b5;
  font-size: 0.75rem;
}
.rail .ad-box .lbl {
  align-self: flex-start;
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  color: #b0bcc8;
  margin-bottom: 8px;
}
.main { min-width: 0; }

@media (max-width: 1100px) {
  .shell { grid-template-columns: 1fr; }
  .rail { position: static; }
  .rail .ad-box { min-height: 90px; margin: 8px 0; }
  .rail--left { order: 2; }
  .main { order: 1; }
  .rail--right { order: 3; }
}

/* nav */
.top {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
}
.top-inner {
  max-width: calc(var(--main) + var(--rail) * 2 + 40px);
  margin: 0 auto;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.brand {
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--navy);
  text-decoration: none;
  letter-spacing: 0.02em;
}
.nav-actions { display: flex; gap: 10px; align-items: center; }
.nav-login {
  color: var(--navy);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 8px 12px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 20px;
  border-radius: 10px;
  font-weight: 800;
  font-size: 0.95rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
}
.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 6px 18px rgba(249, 115, 22, 0.28);
}
.btn-primary:active { background: var(--blue-dark); }
.btn-outline {
  background: var(--white);
  color: var(--navy);
  border: 1.5px solid var(--border);
}
.btn-lg { min-height: 52px; padding: 14px 28px; font-size: 1.02rem; }

/* hero */
.hero {
  background: linear-gradient(180deg, var(--sky) 0%, var(--white) 72%);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 40px 28px 36px;
  margin-top: 20px;
  text-align: center;
  box-shadow: var(--shadow);
}
.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(1.7rem, 4vw, 2.45rem);
  line-height: 1.35;
  color: var(--navy);
  font-weight: 800;
  letter-spacing: -0.02em;
}
.hero .lead {
  margin: 0 auto 22px;
  max-width: 34em;
  color: var(--muted);
  font-size: 1.02rem;
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 22px auto 0;
  max-width: 520px;
}
.stat {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 10px;
}
.stat strong {
  display: block;
  font-size: 1.35rem;
  color: var(--blue);
  font-weight: 800;
}
.stat span { font-size: 0.78rem; color: var(--muted); }

/* sections */
.section { margin-top: 48px; }
.section h2 {
  margin: 0 0 8px;
  text-align: center;
  font-size: 1.45rem;
  color: var(--navy);
  font-weight: 800;
}
.section .sub {
  text-align: center;
  color: var(--muted);
  margin: 0 0 24px;
  font-size: 0.95rem;
}

.reasons { display: grid; gap: 14px; }
.reason {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 14px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.03);
}
.reason .num {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--blue-soft);
  color: var(--blue);
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}
.reason h3 { margin: 0 0 6px; font-size: 1.05rem; color: var(--navy); }
.reason p { margin: 0; color: var(--muted); font-size: 0.92rem; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
}
.grid-6 {
  grid-template-columns: repeat(3, 1fr);
}
@media (max-width: 720px) {
  .grid-6 { grid-template-columns: 1fr; }
}
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  min-height: 148px;
}
.card .ico {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--blue-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--blue-dark);
  letter-spacing: 0.02em;
}
.card h3 { margin: 0 0 6px; font-size: 1rem; color: var(--navy); }
.card p { margin: 0; font-size: 0.9rem; color: var(--muted); }

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  counter-reset: st;
}
.step {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  text-align: center;
}
.step::before {
  counter-increment: st;
  content: counter(st);
  display: inline-flex;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--navy);
  color: #fff;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  margin-bottom: 10px;
}
.step h3 { margin: 0 0 6px; font-size: 0.98rem; color: var(--navy); }
.step p { margin: 0; font-size: 0.85rem; color: var(--muted); }

.pricing {
  max-width: 420px;
  margin: 0 auto;
  background: var(--white);
  border: 2px solid var(--blue);
  border-radius: 20px;
  padding: 28px;
  text-align: center;
  box-shadow: var(--shadow);
}
.pricing .name { font-weight: 800; color: var(--navy); }
.pricing .amount {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--blue);
  margin: 10px 0 0;
}
.pricing .unit { color: var(--muted); font-size: 0.95rem; }
.pricing .trial {
  color: var(--ok);
  font-weight: 800;
  margin: 8px 0 16px;
  font-size: 0.95rem;
}
.pricing ul {
  list-style: none;
  padding: 0;
  margin: 0 0 20px;
  text-align: left;
}
.pricing li {
  padding: 8px 0 8px 28px;
  position: relative;
  font-size: 0.94rem;
}
.pricing li::before {
  content: "✓";
  position: absolute;
  left: 4px;
  color: var(--blue);
  font-weight: 800;
}
.pricing .btn { width: 100%; }
.fine { font-size: 0.78rem; color: var(--muted); margin-top: 12px; }

.safety {
  background: var(--blue-soft);
  border: 1px solid #fed7aa;
  border-radius: var(--radius);
  padding: 20px;
  margin-top: 40px;
}
.safety h2 { margin: 0 0 8px; font-size: 1.05rem; color: var(--navy); text-align: left; }
.safety p { margin: 0; font-size: 0.9rem; color: #334155; }

.footer {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
}
.footer a { color: var(--muted); margin: 0 8px; }
.footer .copy { display: block; margin-top: 12px; font-size: 0.8rem; }

.ad-inline {
  margin: 20px 0;
  min-height: 90px;
  border: 1px dashed #c9d4e0;
  border-radius: 12px;
  background: #fafbfc;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #9aa8b5;
  font-size: 0.85rem;
  position: relative;
}
.ad-inline .lbl {
  position: absolute;
  top: 6px;
  left: 10px;
  font-size: 0.65rem;
  color: #b0bcc8;
}