/* ============================================================
  浄水器・オール浄水システムページ専用スタイル（water.css）
  共通スタイル css/style.css + css/gaiheki.css を継承し、
  このページ固有のセクションのみここで定義します。
============================================================ */

/* ============================================================
  オール浄水システム解説セクション
============================================================ */
.water-about-section {
  background: var(--off);
  padding: 88px 0 72px;
}
.water-about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  margin-top: 52px;
  align-items: start;
}
.water-about-img {
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.water-about-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .6s var(--ease-soft);
}
@media (hover:hover) {
  .water-about-img:hover img { transform: scale(1.03); }
}
.water-about-body {
  display: grid;
  gap: 28px;
}
.water-about-point {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 0 16px;
  align-items: start;
}
.water-point__num {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--gold);
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 4px;
}
.water-about-point h3 {
  font-family: var(--font-heading);
  font-size: 19px;
  line-height: 1.5;
  color: var(--navy);
  margin-bottom: 8px;
}
.water-about-point p {
  font-size: 13px;
  line-height: 1.95;
  color: var(--text-muted);
  font-family: var(--font-body);
}

/* ============================================================
  浄水タイプ比較セクション
============================================================ */
.water-type-section {
  background: var(--navy);
  padding: 88px 0 72px;
}
.water-type-section .section-eyebrow {
  background: rgba(200,168,90,.15);
  border-color: rgba(200,168,90,.3);
}
.water-type-section .section-title { color: var(--white); }
.water-type-section .section-copy  { color: rgba(255,255,255,.75); }

.water-type-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.water-type-card {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--r-xl);
  padding: 32px 22px 28px;
  text-align: center;
  position: relative;
  transition: transform var(--dur-fast) var(--ease-soft),
              box-shadow var(--dur-fast) var(--ease-soft);
}
.water-type-card--all {
  background: rgba(200,168,90,.12);
  border-color: rgba(200,168,90,.4);
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(0,0,0,.25);
}
.water-type-card__badge {
  position: absolute;
  top: -14px; left: 50%;
  transform: translateX(-50%);
  background: var(--gold);
  color: var(--navy);
  font: 700 12px var(--font-body);
  letter-spacing: .1em;
  padding: 4px 20px;
  border-radius: var(--r-pill);
}
.water-type-card__head {
  margin-bottom: 20px;
}
.water-type-card__label {
  font-family: var(--font-number);
  font-size: 13px;
  font-style: italic;
  color: var(--gold);
  letter-spacing: .12em;
  margin-bottom: 8px;
}
.water-type-card h3 {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.4;
}
.water-type-card__list {
  text-align: left;
  display: grid;
  gap: 8px;
  margin-bottom: 24px;
}
.water-type-card__list li {
  font-size: 13px;
  color: rgba(255,255,255,.78);
  font-family: var(--font-body);
  line-height: 1.7;
  padding-left: 16px;
  position: relative;
}
.water-type-card__list li::before {
  content: '–';
  position: absolute; left: 0;
  color: var(--gold); font-weight: 700;
}
.water-type-card__price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,.1);
}
.water-type-num {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
}
.water-type-card__price span:last-child {
  font-size: 14px;
  color: rgba(255,255,255,.7);
  font-family: var(--font-body);
}
.water-type-note {
  margin-top: 32px;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
.water-type-note p {
  font-size: 13px;
  line-height: 2;
  color: rgba(255,255,255,.6);
  font-family: var(--font-body);
}

/* ============================================================
  レスポンシブ
============================================================ */
@media (max-width: 1024px) {
  .water-about-grid  { grid-template-columns: 1fr; gap: 36px; }
  .water-type-grid   { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .water-about-section { padding: 64px 0 52px; }
  .water-type-section  { padding: 64px 0 52px; }
  .water-type-grid     { grid-template-columns: 1fr; }
  .water-type-card--all { transform: none; }
  .water-about-point   { grid-template-columns: 40px 1fr; gap: 0 12px; }
  .water-point__num    { width: 36px; height: 36px; font-size: 13px; }
}

@media (max-width: 640px) {
  .water-about-grid  { gap: 24px; }
  .water-about-point h3 { font-size: 17px; }
}