/* HP（3ページ共通）— 白い余白と水色。カード型は使わず、罫線・余白・写真と文章の左右交互で区切る */

/* ヘッダー */
.header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgb(251 250 247 / 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-in {
  display: flex;
  align-items: center;
  gap: 40px;
  height: 72px;
}
.nav {
  margin-left: auto;
}
.nav ul {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav a {
  text-decoration: none;
  font-size: 14px;
  letter-spacing: 0.14em;
  padding: 6px 0;
  border-bottom: 1px solid transparent;
}
.nav a:hover,
.nav a[aria-current="page"] {
  border-color: var(--blue);
}
.nav .nav-store a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 22px;
  border: 1px solid var(--blue);
  border-radius: 999px;
  color: var(--blue);
}
.nav .nav-store a:hover {
  background: var(--blue);
  color: #fff;
}
.nav-toggle {
  display: none;
}
@media (max-width: 760px) {
  .header-in {
    justify-content: space-between;
  }
  .nav-toggle {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border: 0;
    background: none;
    color: var(--ink);
    cursor: pointer;
  }
  .nav-toggle span,
  .nav-toggle span::before,
  .nav-toggle span::after {
    display: block;
    width: 22px;
    height: 1px;
    background: currentColor;
    position: relative;
    transition: transform 0.25s;
  }
  .nav-toggle span::before,
  .nav-toggle span::after {
    content: "";
    position: absolute;
  }
  .nav-toggle span::before {
    top: -7px;
  }
  .nav-toggle span::after {
    top: 7px;
  }
  .nav-toggle[aria-expanded="true"] span {
    background: transparent;
  }
  .nav-toggle[aria-expanded="true"] span::before {
    transform: translateY(7px) rotate(45deg);
  }
  .nav-toggle[aria-expanded="true"] span::after {
    transform: translateY(-7px) rotate(-45deg);
  }
  .nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    /* 開くとき：上から下へ幕が下りるように見せ、項目は少しずつ遅れて出す */
    visibility: hidden;
    clip-path: inset(0 0 100% 0);
    box-shadow: 0 12px 24px rgb(26 39 44 / 0);
    transition: clip-path 0.45s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.45s, visibility 0s 0.45s;
  }
  .nav.is-open {
    visibility: visible;
    clip-path: inset(0 0 -40px 0);
    box-shadow: 0 12px 24px rgb(26 39 44 / 0.08);
    transition: clip-path 0.45s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.45s;
  }
  .nav li {
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 0.25s, transform 0.25s;
  }
  .nav.is-open li {
    opacity: 1;
    transform: none;
    transition: opacity 0.4s ease, transform 0.4s ease;
  }
  .nav.is-open li:nth-child(1) { transition-delay: 0.08s; }
  .nav.is-open li:nth-child(2) { transition-delay: 0.14s; }
  .nav.is-open li:nth-child(3) { transition-delay: 0.2s; }
  .nav.is-open li:nth-child(4) { transition-delay: 0.26s; }
  @media (prefers-reduced-motion: reduce) {
    .nav,
    .nav.is-open,
    .nav li,
    .nav.is-open li {
      transition: none;
    }
  }
  .nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 16px 20px;
  }
  .nav li a {
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
  }
  .nav .nav-store {
    margin-top: 16px;
  }
  .nav .nav-store a {
    justify-content: center;
    min-height: 48px;
  }
}

/* 共通の節 */
.sec {
  padding: clamp(80px, 11vw, 140px) 0;
}
.sec-white {
  background: var(--white);
}
.sec-mist {
  background: var(--mist);
}
.sec-head {
  margin-bottom: clamp(40px, 6vw, 64px);
}
.sec-head h2 {
  font-size: clamp(24px, 3vw, 32px);
}
.sec-head p {
  margin-top: 14px;
  color: var(--ink-2);
}
.sec-head.is-center {
  text-align: center;
}
.more {
  margin-top: 48px;
  text-align: center;
}
.more a {
  font-size: 14px;
  letter-spacing: 0.14em;
  text-underline-offset: 6px;
}

/* トップの最初（文字は左、写真は右端まで） */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  align-items: center;
  min-height: min(calc(100svh - 104px), 760px);
}
.hero-text {
  padding: 64px 48px 64px max(16px, calc((100vw - var(--wrap)) / 2));
}
.hero h1 {
  font-size: clamp(34px, 4.2vw, 58px);
  line-height: 1.55;
  letter-spacing: 0.14em;
  white-space: nowrap; /* 「水のように、／なじむ。」は <br> だけで折り返す（幅がせまいと「水のよう／に、」と切れたため） */
}
.hero-lead {
  margin-top: 28px;
  color: var(--ink-2);
  line-height: 2.1;
}
.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 40px;
}
.hero .ph {
  --ratio: auto;
  height: 100%;
  min-height: 420px;
  border-radius: 0;
}
@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: 0;
  }
  .hero .ph {
    order: -1;
    min-height: 0;
    height: auto;
    --ratio: 4 / 3;
  }
  .hero-text {
    padding: 44px 16px 72px;
  }
}

/* ブランドの考え（大きな文章を中央に） */
.statement {
  text-align: center;
}
.statement h2 {
  font-size: clamp(24px, 3.4vw, 36px);
  line-height: 1.8;
}
.statement-body {
  max-width: 34em;
  margin: 40px auto 0;
  color: var(--ink-2);
  line-height: 2.3;
}
.statement-body p + p {
  margin-top: 1.4em;
}

/* 3つの約束（罫線で区切る行） */
.promises {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.promises li {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr) minmax(0, 1.4fr);
  gap: 32px;
  align-items: baseline;
  padding: 40px 0;
  border-bottom: 1px solid var(--line);
}
.promise-no {
  font-family: var(--mincho);
  font-size: 44px;
  line-height: 1;
  color: var(--blue-soft);
  letter-spacing: 0.06em;
}
.promises h3 {
  font-size: 21px;
}
.promises p {
  color: var(--ink-2);
}
@media (max-width: 760px) {
  .promises li {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 32px 0;
  }
  .promise-no {
    font-size: 32px;
  }
}

/* 商品のならび（縦線で区切る3列） */
.lineup {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.lineup-item {
  padding: 0 clamp(16px, 3vw, 40px);
  text-decoration: none;
  text-align: center;
}
.lineup-item + .lineup-item {
  border-left: 1px solid var(--line);
}
.lineup-item .ph {
  --ratio: 3 / 4;
  margin-bottom: 28px;
  transition: opacity 0.3s;
}
.lineup-item:hover .ph {
  opacity: 0.88;
}
.lineup-kind {
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--blue);
}
.lineup-item h3 {
  font-size: 20px;
  margin: 6px 0 4px;
}
.lineup-meta {
  font-size: 14px;
  color: var(--ink-2);
}
.lineup-item.is-main .lineup-kind::after {
  content: "　主役の一本";
  color: var(--ink-2);
  letter-spacing: 0.1em;
}
@media (max-width: 760px) {
  .lineup {
    grid-template-columns: 1fr;
  }
  .lineup-item {
    display: grid;
    grid-template-columns: 112px minmax(0, 1fr);
    gap: 20px;
    align-items: center;
    text-align: left;
    padding: 20px 0;
  }
  .lineup-item + .lineup-item {
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .lineup-item .ph {
    margin: 0;
  }
}

/* 朝と夜の使い方（線でつなぐ3つの順番） */
.routine {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(40px, 7vw, 96px);
  align-items: center;
}
.order {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  position: relative;
}
.order::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: var(--blue-soft);
}
.order li {
  position: relative;
  padding: 0 0 28px 40px;
}
.order li:last-child {
  padding-bottom: 0;
}
.order li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--blue);
}
.order b {
  display: block;
  font-family: var(--mincho);
  font-weight: 500;
  font-size: 18px;
}
.order span {
  font-size: 14px;
  color: var(--ink-2);
}
.routine .ph {
  --ratio: 4 / 5;
}
.routine-note {
  margin-top: 32px;
  font-size: 14px;
  color: var(--ink-2);
}
@media (max-width: 760px) {
  .routine {
    grid-template-columns: 1fr;
  }
  .routine .ph {
    --ratio: 4 / 3;
    order: -1;
  }
}

/* トライアルの帯（ページで唯一の色の面） */
.trial {
  background: var(--blue);
  color: #fff;
}
.trial-in {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
}
.trial .ph {
  --ratio: 4 / 3;
  border-radius: 0;
}
.trial-text {
  padding: clamp(48px, 7vw, 88px) clamp(24px, 6vw, 80px);
}
.trial .eyebrow {
  color: var(--water);
}
.trial h2 {
  font-size: clamp(24px, 3vw, 32px);
}
.trial-price {
  margin-top: 20px;
  font-family: var(--mincho);
  font-size: 34px;
  letter-spacing: 0.06em;
}
.trial-price small {
  font-family: var(--gothic);
  font-size: 14px;
  margin-left: 12px;
  letter-spacing: 0.08em;
}
.trial-text p:not(.trial-price) {
  margin-top: 14px;
  color: rgb(255 255 255 / 0.88);
  font-size: 15px;
}
.trial .btn {
  margin-top: 32px;
}
@media (max-width: 760px) {
  .trial-in {
    grid-template-columns: 1fr;
  }
  .trial-text {
    padding: 44px 16px 56px;
  }
}

/* お知らせ（罫線のリスト） */
.news {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.news li {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}
.news time {
  color: var(--blue);
  letter-spacing: 0.1em;
}
@media (max-width: 600px) {
  .news li {
    grid-template-columns: 1fr;
    gap: 2px;
  }
}

/* 下層ページの最初 */
.page-head {
  padding: clamp(64px, 9vw, 112px) 0 clamp(40px, 6vw, 64px);
  border-bottom: 1px solid var(--line);
}
.page-head h1 {
  font-size: clamp(28px, 4vw, 42px);
}
.page-head p {
  margin-top: 18px;
  max-width: 38em;
  color: var(--ink-2);
}
.page-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
  margin-top: 32px;
  padding: 0;
  list-style: none;
  font-size: 14px;
}
.page-nav a {
  text-underline-offset: 6px;
}

/* 商品（写真と文章の左右交互） */
.product {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(40px, 7vw, 96px);
  align-items: center;
  padding: clamp(72px, 9vw, 112px) 0;
  border-bottom: 1px solid var(--line);
}
.product:nth-of-type(even) .ph {
  order: 2;
}
.product .ph {
  --ratio: 4 / 5;
}
.product-kind {
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--blue);
}
.product h2 {
  font-size: clamp(26px, 3.2vw, 34px);
  margin: 8px 0 20px;
}
.product-lead {
  color: var(--ink-2);
}
.spec {
  margin: 28px 0 0;
  border-top: 1px solid var(--line);
  font-size: 15px;
}
.spec div {
  display: grid;
  grid-template-columns: 7em minmax(0, 1fr);
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.spec dt {
  color: var(--ink-2);
}
.spec dd {
  margin: 0;
}
.price-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 24px;
  margin-top: 24px;
}
.price-row b {
  font-family: var(--mincho);
  font-weight: 500;
  font-size: 28px;
  letter-spacing: 0.04em;
}
.price-row span {
  font-size: 14px;
  color: var(--ink-2);
}
.product details {
  margin-top: 20px;
  font-size: 13px;
  color: var(--ink-2);
}
.product summary {
  cursor: pointer;
  color: var(--ink);
  font-size: 14px;
}
.product details p {
  margin-top: 10px;
  line-height: 1.9;
}
.product .btn {
  margin-top: 28px;
}
@media (max-width: 760px) {
  .product {
    grid-template-columns: 1fr;
  }
  .product:nth-of-type(even) .ph {
    order: 0;
  }
  .product .ph {
    --ratio: 4 / 3;
  }
}

/* 表（定期便・使い方の量など） */
.table {
  width: 100%;
  border-collapse: collapse;
  border-top: 1px solid var(--ink);
  font-size: 15px;
}
.table th,
.table td {
  padding: 18px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
.table th {
  width: 30%;
  font-weight: 500;
  color: var(--ink-2);
}
.table-wrap {
  max-width: 820px;
  margin-inline: auto;
}
@media (max-width: 600px) {
  .table th,
  .table td {
    display: block;
    width: auto;
    padding: 4px 0;
    border: 0;
  }
  .table th {
    padding-top: 16px;
  }
  .table td {
    padding-bottom: 16px;
    border-bottom: 1px solid var(--line);
  }
}

/* 使い方（大きな番号の順番） */
.howto {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(32px, 5vw, 64px);
}
.howto li {
  border-top: 1px solid var(--ink);
  padding-top: 24px;
}
.howto-no {
  font-family: var(--mincho);
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--blue);
}
.howto h3 {
  font-size: 20px;
  margin: 8px 0 12px;
}
.howto p {
  font-size: 15px;
  color: var(--ink-2);
}
.howto .amount {
  margin-top: 14px;
  font-size: 13px;
  color: var(--ink);
}
@media (max-width: 760px) {
  .howto {
    grid-template-columns: 1fr;
  }
}

/* よくある質問（罫線のアコーディオン） */
.faq-group + .faq-group {
  margin-top: 64px;
}
.faq-group h3 {
  font-size: 20px;
  margin-bottom: 16px;
}
.faq {
  border-top: 1px solid var(--line);
}
.faq details {
  border-bottom: 1px solid var(--line);
}
.faq summary {
  list-style: none;
  cursor: pointer;
  position: relative;
  padding: 22px 48px 22px 2.2em;
  font-weight: 500;
}
.faq summary::-webkit-details-marker {
  display: none;
}
.faq summary::before {
  content: "Q";
  position: absolute;
  left: 0;
  font-family: var(--mincho);
  color: var(--blue);
}
.faq summary::after {
  content: "";
  position: absolute;
  right: 8px;
  top: 50%;
  width: 12px;
  height: 12px;
  margin-top: -9px;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  transform: rotate(45deg);
  transition: transform 0.25s;
}
.faq details[open] summary::after {
  transform: rotate(-135deg);
  margin-top: -3px;
}
.faq-a {
  padding: 0 8px 26px 2.2em;
  color: var(--ink-2);
  font-size: 15px;
}
@media (prefers-reduced-motion: reduce) {
  .faq summary::after {
    transition: none;
  }
}

/* 使用上の注意 */
.notes {
  margin: 0;
  padding-left: 1.2em;
  color: var(--ink-2);
  font-size: 14px;
  line-height: 2;
}

/* お問い合わせ */
.contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 32px;
  align-items: center;
  padding: 40px 0;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
}
.contact p {
  color: var(--ink-2);
  font-size: 15px;
}
@media (max-width: 760px) {
  .contact {
    grid-template-columns: 1fr;
  }
}

/* フッター */
.footer {
  background: var(--ink);
  color: rgb(251 250 247 / 0.86);
  padding: 72px 0 32px;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
}
.footer .wordmark {
  color: #fff;
}
.footer-desc {
  margin-top: 16px;
  line-height: 2;
}
.footer h3 {
  font-family: var(--gothic);
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--blue-soft);
  margin-bottom: 12px;
}
.footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.footer a {
  text-decoration: none;
}
.footer a:hover {
  text-decoration: underline;
}
.footer-legal {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid rgb(255 255 255 / 0.16);
  font-size: 12px;
  line-height: 1.9;
}
.copy {
  margin-top: 12px;
  font-size: 12px;
  color: rgb(251 250 247 / 0.6);
}
@media (max-width: 760px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

/* タブレットの幅（3列だと窮屈なところ） */
@media (max-width: 1024px) and (min-width: 761px) {
  .promises li {
    grid-template-columns: 88px minmax(0, 1fr);
    row-gap: 10px;
  }
  .promises p {
    grid-column: 2;
  }
  .lineup-item h3 {
    font-size: 17px;
    letter-spacing: 0.06em;
  }
}
@media (max-width: 760px) {
  .nav .nav-store a {
    display: flex;
  }
}