/* トップページのスタイル。末尾の @media がスマートフォン用です。 */

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}
body {
  margin: 0;
  color: var(--theme-ink);
  background: var(--theme-page);
  font-family:
    -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", Meiryo,
    sans-serif;
  line-height: 1.85;
}
a {
  color: inherit;
  text-decoration: none;
}
header {
  height: 80px;
  padding: 0 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #fff;
  border-bottom: 1px solid var(--theme-soft-strong);
}
header b {
  font-size: 18px;
}
header small {
  display: block;
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--theme-muted);
}
nav {
  display: flex;
  gap: 30px;
  font-size: 12px;
}
.hero {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  max-width: 1600px;
  margin: auto;
  background: var(--theme-soft);
  min-height: 730px;
}
.hero-copy {
  padding: 65px 20px 65px max(32px, calc((100vw - 1200px) / 2));
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  position: relative;
  z-index: 1;
}
.eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.17em;
  color: var(--theme-primary);
}
.hero h1 {
  font-size: clamp(36px, 3.5vw, 54px);
  line-height: 1.48;
  letter-spacing: -0.04em;
  margin: 25px 0;
}
.hero h1 em {
  white-space: nowrap;
  font-size: 0.87em;
  font-style: normal;
  color: var(--theme-primary);
}
.hero p {
  color: var(--theme-muted);
  font-size: 14px;
  margin: 0 0 27px;
  max-width: 460px;
}
.label {
  display: inline-flex;
  gap: 13px;
  font-size: 12px;
  padding: 5px 12px;
  border: 1px solid var(--theme-border);
  border-radius: 4px;
  color: var(--theme-primary);
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 28px;
  background: var(--theme-primary);
  color: white;
  padding: 14px 24px;
  border-radius: 5px;
  font-size: 14px;
  font-weight: 700;
}
.hero-art {
  position: relative;
  overflow: hidden;
  background: var(--theme-border);
}
.hero-art img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
}
.art-caption {
  position: absolute;
  bottom: 15px;
  right: 17px;
  color: white;
  text-shadow: 0 1px 5px var(--theme-ink);
  font-size: 10px;
  letter-spacing: 0.1em;
}
.hero-art:before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--theme-soft), transparent 15%);
  pointer-events: none;
}
.strip {
  background: var(--theme-dark);
  color: white;
}
.strip-inner {
  max-width: 1200px;
  padding: 22px 32px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.strip small {
  color: #f4d18f;
  letter-spacing: 0.13em;
}
.strip b {
  display: block;
  font-size: 18px;
}
.strip a {
  font-size: 13px;
  border-bottom: 1px solid var(--theme-accent);
  white-space: nowrap;
}
.wrap {
  max-width: 1200px;
  margin: auto;
  padding: 0 32px;
}
.latest {
  padding: 80px 0;
}
.section-top {
  display: flex;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 28px;
}
h2 {
  font-size: 32px;
  margin: 5px 0;
}
.section-top p {
  font-size: 12px;
  color: var(--theme-muted);
}
.feature {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  background: white;
  border: 1px solid var(--theme-soft-strong);
  border-radius: 12px;
  overflow: hidden;
  transition: box-shadow 0.2s;
}
.feature:hover {
  box-shadow: 0 14px 40px #193e6612;
}
.feature-visual {
  background: var(--theme-soft);
  padding: 28px;
  display: flex;
  align-items: center;
  position: relative;
  min-height: 300px;
}
.feature-visual img {
  width: 100%;
  box-shadow: 0 8px 22px #18365922;
  border: 1px solid var(--theme-border);
  border-radius: 6px;
}
.feature-content {
  padding: 35px;
}
.meta {
  font-size: 11px;
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}
.tag {
  padding: 3px 10px;
  border-radius: 3px;
  background: var(--theme-soft);
  color: var(--theme-primary);
}
.feature h3 {
  font-size: 26px;
  line-height: 1.6;
  margin: 20px 0 15px;
}
.feature p {
  font-size: 13px;
  color: var(--theme-muted);
}
.read {
  font-size: 13px;
  font-weight: 700;
  color: var(--theme-primary);
  display: block;
  margin-top: 25px;
}
.themes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  margin-top: 25px;
  gap: 20px;
}
.theme {
  border-top: 2px solid var(--theme-border);
  padding: 20px 0;
}
.theme b {
  font-size: 16px;
}
.theme span {
  font-size: 11px;
  color: var(--theme-primary);
  display: block;
  letter-spacing: 0.12em;
  margin-bottom: 8px;
}
.theme p {
  font-size: 13px;
  color: var(--theme-muted);
}
.history {
  padding: 65px 0 85px;
  background: white;
  border-top: 1px solid var(--theme-soft-strong);
}
.history-intro {
  font-size: 14px;
  color: var(--theme-muted);
}
.row {
  display: grid;
  grid-template-columns: 140px 1fr 30px;
  gap: 20px;
  border-top: 1px solid var(--theme-soft-strong);
  padding: 28px 0;
  margin-top: 28px;
}
.row time {
  font-size: 13px;
  color: var(--theme-muted);
}
.row strong {
  font-size: 17px;
  display: block;
  margin: 8px 0;
}
.row p {
  font-size: 13px;
  color: var(--theme-muted);
  margin: 0;
}
.arrow {
  font-size: 24px;
  color: var(--theme-primary);
}
.end {
  background: var(--theme-soft);
  padding: 60px 25px;
  text-align: center;
}
.end h2 {
  font-size: 25px;
}
.slot {
  display: inline-block;
  padding: 12px 22px;
  border: 1px dashed var(--theme-accent);
  color: var(--theme-muted);
  border-radius: 5px;
  font-size: 13px;
}
footer {
  padding: 30px 5%;
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  background: #fff;
  color: var(--theme-muted);
}
.preview {
  background: #fff6df;
  color: #82652a;
  font-size: 11px;
  text-align: center;
  padding: 8px 20px;
}
a:focus-visible {
  outline: 3px solid #e99245;
  outline-offset: 5px;
}
@media (min-width: 1600px) {
  .hero-copy {
    padding-left: 120px;
  }
}
@media (max-width: 750px) {
  header {
    height: 72px;
    padding: 0 20px;
  }
  header b {
    font-size: 14px;
  }
  nav a:first-child {
    display: none;
  }
  nav {
    font-size: 11px;
  }
  .hero {
    display: flex;
    flex-direction: column;
    min-height: 0;
  }
  .hero-copy {
    padding: 36px 23px 32px;
  }
  .hero h1 {
    font-size: 39px;
    margin: 20px 0;
  }
  .hero p {
    font-size: 13px;
  }
  .hero-art {
    height: 390px;
  }
  .hero-art img {
    object-position: center 37%;
  }
  .hero-art:before {
    background: linear-gradient(var(--theme-soft), transparent 17%);
  }
  .strip-inner {
    padding: 22px;
    display: block;
  }
  .strip b {
    font-size: 16px;
  }
  .strip a {
    display: inline-block;
    margin-top: 10px;
  }
  .wrap {
    padding: 0 22px;
  }
  .latest {
    padding: 50px 0;
  }
  .section-top {
    display: block;
  }
  .section-top p {
    margin: 0;
  }
  .feature {
    grid-template-columns: 1fr;
  }
  .feature-visual {
    min-height: 0;
    padding: 20px;
  }
  .feature-content {
    padding: 25px;
  }
  .feature h3 {
    font-size: 23px;
  }
  .themes {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .theme {
    padding: 17px 0;
  }
  .theme p {
    margin: 5px 0;
  }
  .row {
    grid-template-columns: 1fr 20px;
    gap: 8px;
  }
  .row time {
    grid-column: 1/-1;
  }
  .history {
    padding: 45px 0;
  }
  footer {
    display: block;
  }
  .hero .label {
    font-size: 10px;
  }
  h2 {
    font-size: 28px;
  }
}
[hidden] {
  display: none !important;
}

/* フィードバック反映：意味のあるまとまりで改行し、1文字の折り返しを防ぎます。 */
h1,
h2,
h3,
p {
  text-wrap: pretty;
}
h1,
h2,
h3 {
  text-wrap: balance;
}
.copy-line {
  display: block;
}
.hero h1 .copy-line {
  white-space: nowrap;
  font-size: 0.75em;
}
.hero .intro {
  max-width: 800px;
}
.hero .intro .copy-line {
  white-space: nowrap;
  font-size: clamp(12px, 1.4vw, 17px);
}
.prep-line {
  white-space: nowrap;
  font-size: clamp(16px, 1.7vw, 25px);
}
.feedback {
  padding: 65px 0;
  text-align: center;
  background: var(--theme-soft);
}
.feedback h2 {
  font-size: clamp(22px, 3vw, 33px);
}
.feedback p {
  font-size: 14px;
}
.feedback .btn {
  margin-top: 18px;
}
#survey-pending {
  color: var(--theme-muted);
}
.guide-link {
  margin-top: 35px;
}
.guide-page {
  padding-top: 50px;
  padding-bottom: 65px;
}
.guide-page .coupon-guide {
  margin-top: 0;
}
.guide-page h1 {
  font-size: clamp(26px, 4vw, 40px);
}
@media (max-width: 700px) {
  .hero h1 {
    font-size: clamp(26px, 7.4vw, 39px);
  }
  .hero .intro .copy-line {
    font-size: clamp(11px, 3.2vw, 15px);
  }
  .feedback {
    padding: 45px 20px;
  }
  .campaign .wrap {
    display: block;
  }
  .campaign .btn {
    margin-top: 20px;
  }
}

.strip p {
  font-size: 13px;
  color: var(--theme-soft-strong);
  margin: 8px 0 0;
}

/* トップ下部：アンケートと冬の参加準備メッセージ */
.feedback {
  background: var(--theme-soft);
  padding: 65px 24px;
}
.feedback .eyebrow {
  color: var(--theme-primary);
  font-size: 13px;
  letter-spacing: 0.16em;
}
.feedback h2 {
  margin: 16px 0 12px;
  font-size: clamp(22px, 2.3vw, 32px);
}
.feedback .btn {
  background: var(--theme-primary);
  min-height: 58px;
  margin-top: 18px;
}
.end {
  background: var(--theme-primary);
  color: #fff;
  padding: 70px 24px;
  text-align: center;
}
.end h2 {
  color: #fff;
  margin: 0;
  font-size: clamp(25px, 3vw, 42px);
  line-height: 1.6;
  text-wrap: balance;
}
.end .btn {
  margin-top: 24px;
  background: #fff;
  color: var(--theme-primary);
}
@media (max-width: 700px) {
  .feedback {
    padding: 48px 20px;
  }
  .feedback .wrap {
    padding: 0;
  }
  .end {
    padding: 50px 20px;
  }
}

/* 使い方ガイドの目次 */
.guide-index {
  padding: 65px 0;
  background: var(--theme-soft);
}
.guide-index h2 {
  margin: 8px 0 12px;
}
.guide-index-intro {
  color: var(--theme-muted);
  font-size: 14px;
  margin-bottom: 25px;
}
.guide-card {
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 28px;
  background: #fff;
  border: 1px solid var(--theme-border);
  border-radius: 10px;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
}
.guide-card:hover {
  border-color: var(--theme-primary);
  box-shadow: 0 8px 24px #193e6610;
}
.guide-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  flex-shrink: 0;
  color: var(--theme-primary);
  background: var(--theme-soft);
  border-radius: 50%;
  font-size: 26px;
  font-weight: bold;
}
.guide-card strong {
  display: block;
  font-size: 20px;
  color: var(--theme-dark);
}
.guide-card-description {
  display: block;
  margin-top: 7px;
  font-size: 14px;
  color: var(--theme-muted);
}
.guide-card-arrow {
  margin-left: auto;
  color: var(--theme-primary);
  font-size: 25px;
}
@media (max-width: 700px) {
  .guide-index {
    padding: 45px 0;
  }
  .guide-card {
    gap: 14px;
    padding: 20px;
  }
  .guide-card strong {
    font-size: 18px;
  }
  .guide-card-description {
    font-size: 13px;
  }
  .guide-card-icon {
    width: 38px;
    height: 38px;
    font-size: 22px;
  }
}

/* トップのアンケート導線：主ボタンより控えめな補助カード */
.hero-feedback {
  width: 100%;
  max-width: 460px;
  margin-top: 26px;
  padding: 20px 22px;
  border: 1px solid var(--theme-border);
  border-left: 3px solid var(--theme-primary);
  border-radius: 0 12px 12px 0;
  background: rgba(255, 255, 255, 0.76);
}
.hero .hero-feedback .eyebrow {
  margin: 0 0 8px;
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--theme-primary);
}
.hero-feedback h2 {
  margin: 0 0 9px;
  font-size: clamp(17px, 1.35vw, 20px);
  line-height: 1.65;
  letter-spacing: -0.025em;
  color: var(--theme-ink);
}
.feedback-break { display: none; }
.hero .hero-feedback-description {
  margin: 0 0 13px;
  font-size: 12px;
  line-height: 1.85;
}
.hero-feedback-link {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  color: var(--theme-primary);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}
.hero-feedback-link:hover { text-decoration: underline; }
.hero-feedback-link:focus-visible {
  outline: 2px solid var(--theme-primary);
  outline-offset: 5px;
}
.hero-feedback-link[hidden] { display: none; }
@media (max-width: 750px) {
  .hero-feedback { margin-top: 22px; padding: 17px 18px; }
  .hero-feedback h2 { font-size: 17px; }
  .feedback-break { display: inline; }
}

/* アンケートの視認性と、意味のまとまりに沿った改行 */
.hero-feedback { padding: 22px 24px; }
.hero-feedback .feedback-line { display: block; }
.hero-feedback h2 { font-size: 20px; line-height: 1.6; }
.hero .hero-feedback-description { font-size: 13px; margin-bottom: 16px; }
.hero-feedback-link {
  display: flex;
  width: 100%;
  justify-content: space-between;
  padding: 13px 17px;
  border-radius: 6px;
  background: var(--theme-primary);
  color: #fff;
  font-size: 14px;
  line-height: 1.5;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
}
.hero-feedback-link:hover { text-decoration: none; filter: brightness(0.93); }
@media (max-width: 750px) {
  .hero-feedback { padding: 20px; }
  .hero-feedback h2 { font-size: clamp(16px, 4.5vw, 20px); }
  .hero-feedback-link { font-size: 13px; padding: 13px 14px; }
}

/* アンケート見出しは一行で表示 */
.hero-feedback h2 { font-size: 17px; white-space: nowrap; letter-spacing: -0.04em; }
@media (max-width: 750px) {
  .hero-feedback h2 { font-size: clamp(10px, 3.35vw, 17px); }
}

/* 主導線とアンケートのボタン寸法を統一 */
.hero-copy > .btn,
.hero .hero-feedback-link {
  display: inline-flex;
  width: 260px;
  max-width: 100%;
  min-height: 54px;
  padding: 14px 24px;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  border-radius: 5px;
  font-size: 14px;
  line-height: 1.5;
}
.hero .hero-feedback-link[hidden] { display: none; }