/* トップ */
.hero { background: linear-gradient(180deg, #FFF6EE 0%, #FFFFFF 100%); border-bottom: 1px solid var(--line); }
.hero-in { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 56px; align-items: center; padding-top: 56px; padding-bottom: 64px; }
.hero h1 { font-size: 42px; line-height: 1.45; font-weight: 800; letter-spacing: .02em; }
.hero h1 .sp-br { display: none; }
.hero-lead { font-size: 17px; line-height: 1.85; color: var(--ink-2); margin: 18px 0 24px; max-width: 34em; }
.hsearch { display: flex; gap: 10px; }
.hsearch .btn { min-width: 120px; }
.hero-points { list-style: none; padding: 0; margin: 14px 0 0; display: flex; flex-wrap: wrap; gap: 6px 20px; font-size: 15px; color: var(--ink-2); }
.hero-points li { display: inline-flex; align-items: center; gap: 6px; }
.hero-points svg { width: 18px; height: 18px; }

.mock { margin: 0; }
.mock-tag { display: inline-block; font-size: 14px; font-weight: 700; color: var(--ink-2); background: var(--paper-3); border-radius: 999px; padding: 2px 12px; margin: 0 0 10px; }
.mock-card { background: #fff; border-radius: var(--r-xl); box-shadow: var(--sh-3); padding: 24px 26px 22px; }
.mock-room { font-size: 15px; font-weight: 700; color: var(--ink-2); margin: 0 0 6px; }
.mock-ans { display: grid; grid-template-columns: 48px minmax(0, 1fr); gap: 14px; align-items: center; }
.mock-ans p { font-size: 22px; font-weight: 800; line-height: 1.45; margin: 0; }
.mock-day { font-size: 14px; font-weight: 700; color: var(--ink-2); margin: 18px 0 2px; }
.mock-sum { font-size: 16px; line-height: 1.75; margin: 6px 0 14px; }
.mock-flood { display: flex; align-items: flex-start; gap: 8px; padding-top: 12px; border-top: 1px solid var(--line); font-size: 15px; font-weight: 600; }
.mock figcaption { margin-top: 12px; font-size: 15px; text-align: right; }
@media (max-width: 960px) {
  .hero-in { grid-template-columns: minmax(0, 1fr); gap: 32px; padding-top: 32px; padding-bottom: 40px; }
  .hero h1 { font-size: 32px; }
}
@media (max-width: 640px) {
  .hero h1 { font-size: 27px; }

  .hero-lead { font-size: 16px; }
  .hsearch { flex-direction: column; }
  .hsearch .btn { width: 100%; }
  .mock-card { padding: 18px; }
  .mock-ans p { font-size: 19px; }
}

.sec-h.center { justify-content: center; text-align: center; }
.knows { list-style: none; padding: 0; margin: 8px 0 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.knows li { padding: 28px 26px; border-radius: var(--r-l); background: var(--paper-2); }
.k-ill { height: 80px; display: flex; align-items: center; margin-bottom: 14px; }
.k-ill svg { width: 160px; height: auto; overflow: visible; }
.knows h3 { font-size: 19px; line-height: 1.5; margin-bottom: 8px; }
.knows p { font-size: 15px; color: var(--ink-2); margin: 0; }
@media (max-width: 900px) { .knows { grid-template-columns: minmax(0, 1fr); } }

.steps-band { background: var(--paper-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 48px 0 56px; }
.howto { list-style: none; padding: 0; margin: 8px 0 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; counter-reset: none; }
.howto li { background: #fff; border-radius: var(--r-l); padding: 26px; position: relative; }
.howto .n { display: flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 50%; background: var(--accent); color: #fff; font-weight: 800; font-size: 17px; margin-bottom: 12px; }
.howto h3 { font-size: 19px; margin-bottom: 6px; }
.howto p { font-size: 15px; color: var(--ink-2); margin: 0; }
@media (max-width: 900px) { .howto { grid-template-columns: minmax(0, 1fr); } }

.ptabs { display: flex; gap: 4px; overflow-x: auto; border-bottom: 1px solid var(--line); margin-bottom: 20px; scrollbar-width: none; }
.ptabs::-webkit-scrollbar { display: none; }
.ptabs button { appearance: none; border: 0; background: none; min-height: 48px; padding: 0 18px; font-size: 16px; font-weight: 600; color: var(--ink-2); cursor: pointer; border-bottom: 3px solid transparent; white-space: nowrap; }
.ptabs button[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--sun); }

.faq { display: grid; gap: 8px; max-width: 860px; }
.faq details { border: 1px solid var(--line); border-radius: var(--r-m); background: #fff; }
.faq summary { cursor: pointer; list-style: none; padding: 16px 48px 16px 20px; font-weight: 700; position: relative; min-height: 44px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; position: absolute; right: 20px; top: 50%; width: 10px; height: 10px; border-right: 2px solid var(--ink-2); border-bottom: 2px solid var(--ink-2); transform: translateY(-70%) rotate(45deg); transition: transform .2s; }
.faq details[open] summary::after { transform: translateY(-30%) rotate(225deg); }
.faq details p { padding: 0 20px 18px; margin: 0; color: var(--ink-2); }

/* 手直し（第2版の3） */
.hero-in { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px; padding-top: 48px; padding-bottom: 56px; }
.hero-art .scene { width: 100%; height: auto; border-radius: 28px; box-shadow: var(--sh-2); }
.hero-points { gap: 6px 24px; }
.know { padding-top: 64px; padding-bottom: 64px; }
.know-in { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px; align-items: center; margin-top: 16px; }
.know .mock { margin: 0; }
.know .mock-card { box-shadow: var(--sh-3); }
.knows { grid-template-columns: minmax(0, 1fr); gap: 16px; margin: 0; }
.knows li { display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 16px; align-items: start; background: none; padding: 0; border-radius: 0; }
.k-ic { width: 56px; height: 56px; border-radius: 16px; background: var(--sun-soft); display: flex; align-items: center; justify-content: center; }
.k-ic svg { width: 36px; height: 36px; }
.knows h3 { font-size: 20px; margin-bottom: 4px; }
.knows p { font-size: 16px; color: var(--ink-2); }
.home .sec { border-top: 0; }
.steps-band { border: 0; }
.howto li { box-shadow: 0 1px 2px rgba(31, 28, 25, .05); }
.line-chips { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 8px; }
.line-chips a { display: flex; align-items: center; gap: 12px; min-height: 52px; padding: 0 16px; border-radius: var(--r-m); border: 1px solid var(--line); color: var(--ink); text-decoration: none; font-weight: 700; background: #fff; }
.line-chips a:hover { border-color: var(--ink); color: var(--ink); }
.lc-mark { width: 6px; height: 24px; border-radius: 3px; background: var(--lc); flex: none; }
.home #area, .home .sec[aria-labelledby="h-faq"] { background: none; }
@media (max-width: 960px) { .know-in { grid-template-columns: minmax(0, 1fr); gap: 32px; } .hero-in { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 640px) { .knows h3 { font-size: 18px; } .knows li { grid-template-columns: 48px minmax(0, 1fr); } .k-ic { width: 48px; height: 48px; } }