/* ===============================
   1. BASE
=============================== */
.platinum-campaign {
    background: linear-gradient(to right, #CFDCE2 0%, #EEF3F5 40%, #FFFFFF 60%);
    color: #595757;
    font-size: clamp(14px, 1.2vw, 16px);
    line-height: 1.9;
    letter-spacing: 0.05em;

    --fz-sm: clamp(14px, 1.2vw, 16px);
    --fz-md: clamp(16px, 1.6vw, 18px);
    --fz-lg: clamp(18px, 2vw, 24px);
    --fz-xl: clamp(22px, 3vw, 32px);
}

/* reset */
.platinum-campaign *,
.platinum-campaign *::before,
.platinum-campaign *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.platinum-campaign a {
    color: inherit;
    text-decoration: underline 0.3px;
}

.platinum-campaign p {
    margin-bottom: 1rem;
}

.platinum-campaign img {
    max-width: 100%;
    height: auto;
    margin-bottom: 1rem;
}

.platinum-campaign {
    padding-bottom: 10rem;
}

.platinum-campaign section {
    margin: 4rem 0;
}

.platinum-campaign .container .text{
    font-size: 20px;
    text-align: center;
}

/* 初期は両方非表示 */
.pc-only,
.sp-only {
    display: none;
}

/* PCのみ改行 */
@media screen and (min-width: 769px) {
    .pc-only {
        display: inline;
    }
}

/* SPのみ改行 */
@media screen and (max-width: 768px) {
    .sp-only {
        display: inline;
    }
}

/* ===============================
   2. LAYOUT
=============================== */
.platinum-campaign .container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* MV直下テキスト */
.mv-lead {
  max-width: 820px;
  margin: 44px auto 60px;
  padding: 22px 24px;
  text-align: center;
  border: 1px solid rgba(11, 53, 86, 0.18);
  border-radius: 10px;
}

/* テキスト */
.mv-lead__text {
  font-size: 16.5px;
  line-height: 1.85;
  color: #0B3556;
  letter-spacing: 0.07em;
  font-weight: 500;
  max-width: 600px;
  margin: 0 auto;
  position: relative;
  padding-bottom: 10px;
}

/* 下線 */
.mv-lead__text::after {
  content: "";
  display: block;
  width: 36px;
  height: 2px;
  background: #0B3556;
  margin: 12px auto 0;
  border-radius: 2px;
  opacity: 0.85;
}

/* SP */
@media screen and (max-width: 768px) {
  .mv-lead {
    margin: 32px 16px 48px;
    padding: 18px 16px;
  }

  .mv-lead__text {
    font-size: 15px;
    line-height: 1.8;
    letter-spacing: 0.06em;
  }
}
/* ===============================
   3. TYPOGRAPHY
=============================== */
.platinum-campaign .contact-title {
    font-size: var(--fz-xl);
    font-weight: bold;
    text-align: center;
    margin: 6rem 0 3rem;
    letter-spacing: 0.08em;
}

.platinum-campaign .sub-title {
    font-size: clamp(18px, 2vw, 22px);
	font-weight: bold;
    margin-bottom: 1rem;
    padding-left: 1rem;
    border-left: 4px solid #fff;
	margin: 2.5rem 0 1rem;
}

.platinum-campaign .text {
    font-size: var(--fz-lg);
    text-align: center;
}

.platinum-campaign .campaign-text,
.platinum-campaign .application-text {
    max-width: 720px;
    margin: 0 auto;
}

.platinum-campaign .application-text span {
    font-size: 0.85em;
}

.platinum-campaign .text,
.platinum-campaign .campaign-text,
.platinum-campaign .application-text {
    max-width: 680px;
    margin: 0 auto 2.5rem;
    line-height: 1.9;
}

/* ===============================
   4. COMPONENT
=============================== */

.platinum-campaign .btn {
    display: block; 
    width: 100%;
    max-width: 320px;
    margin: 3rem auto;
    padding: 1rem;
    font-size: var(--fz-md);
    font-weight: bold;
    border-radius: 100vh;
    background: #0B3556;
    color: #fff;
    text-align: center;
    text-decoration: none;
    transition: 0.3s;
}

/* ホバー */
.platinum-campaign .btn:hover {
    transform: translateY(-3px);
    background: #0B3556;
    color: #fff;
}

/* 賞品 */

.prize-box {
    padding: 1rem;
}

.prize-img-box {
    display: block;
}

.prize-img-box picture {
    display: block;
    margin: 0;
}

.prize-img-box img {
    display: block;
    width: 100%;
    height: auto;
    margin-bottom: 0;
}

.platinum-campaign button {
    display: block;
    margin: 3.5rem auto 5rem;
    padding: 1.4rem 2.5rem;
    font-size: 1.5rem;
    font-weight: bold;
    border-radius: 100vh;
    border: none;
    cursor: pointer;

    background: #0B3556;
    color: #fff;

    max-width: 360px;
    width: 100%;

    transition: all 0.3s ease;
}

/* アイコン */
.platinum-campaign button i {
    margin-left: 0.6rem;
    font-size: 1.2em;
}

/* ホバー */
.platinum-campaign button:hover {
    transform: translateY(-4px);
    background: #07273f;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

@media screen and (min-width: 769px) {
    .prize-img-box {
        display: flex;
        gap: 4px;
        align-items: flex-start;
    }

    .prize-img-box picture {
        flex: 1;
    }
}

@media screen and (min-width: 769px) {
    .prize-img-box--adjust {
        display: flex;
        gap: 4px;
        align-items: flex-start;
    }

    .prize-img-box--adjust picture {
        flex: 1;
    }

    .prize-img-box--adjust picture:nth-child(2) {
        flex: 0.63;
		margin-top: 10px;
    }
}

/* 応募ステップ */
.platinum-campaign .application-wrap {
    display: flex;
    gap: 20px;
}

.platinum-campaign .application-step {
    flex: 1;
    background: #f9ffff;
    border-radius: 12px;
    padding: 1.5rem;
}

.application-icon {
    display: block;
    margin: 0 auto;
}

/* campaign */
.platinum-campaign .campaign-block {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.2);
}

.platinum-campaign .campaign-list {
    margin-top: 1rem;
}

.platinum-campaign .campaign-list li {
    padding-left: 1rem;
    position: relative;
}

.platinum-campaign .campaign-list li::before {
    content: "・";
    position: absolute;
    left: 0;
}

.recovery-science {
    padding: 4rem 1rem;
}

.platinum-campaign .recovery-science-inner {
    background: #fff;
    color: #0B3556;
    border-radius: 20px;
    padding: 3rem;
    max-width: 1100px;
    width: 90%;
    margin: 0 auto;
    text-align: center;
}

.recovery-science-title {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 1.5rem;
}

/* 本文 */
.recovery-science-text {
    margin: 0 auto 2rem;
    max-width: 900px;
    line-height: 1.8;
}

.recovery-science-text span {
    font-size: 0.8em;
}

/* サブタイトル */
.recovery-science-sub-title {
    font-size: 1.8rem;
    margin: 5rem 0 2rem;
}

.recovery-science-icon {
    width: 800px;
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

/* ========================================
   Accordion Tap Area（FINAL）
======================================== */

.shop-area {
  max-width: 600px;
  margin: 0 auto;
  padding: 0 16px;
}

.shop-card {
  border-bottom: 1px solid #e5e5e5;
}

.shop-card summary {
  padding: 14px 4px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  position: relative;
  letter-spacing: 0.05em;
}

.shop-card summary::-webkit-details-marker {
  display: none;
}

.shop-card summary::after {
  content: "+";
  position: absolute;
  right: 0;
  font-size: 16px;
}

.shop-card[open] summary::after {
  content: "−";
}

.shop-card ul {
  padding: 0 0 12px 0;
}

.shop-card li {
  margin: 2px 0;
}

.shop-card a {
  display: block;
  font-size: 15px;
  padding: 6px 0 6px 4px;
  text-decoration: none;
  color: #555;
  line-height: 1.6;
}

.shop-card a:hover {
  color: #000;
  opacity: 0.6;
}

/* ===============================
   店舗一覧はこちら
=============================== */

.shop-link-wrap {
  text-align: center;
  margin: 40px 0;
}

.shop-link {
  display: inline-block;
  padding: 12px 24px;
  font-size: 14px;
  letter-spacing: 0.05em;
  color: #0B3556;
  border: 1px solid #0B3556;
  text-decoration: none !important;
  transition: 0.3s;
}

.shop-link:hover {
  background-color: #0B3556;
  color: #fff;
}

/* SP調整 */
@media screen and (max-width: 768px) {
  .shop-link {
    font-size: 13px;
    padding: 10px 20px;
  }
}

/* ===============================
   最下部バナー
=============================== */
.platinum-campaign .bottom-banner {
  max-width: 900px;
  margin: 80px auto 0;
  padding: 0 20px;
}

.platinum-campaign .bottom-banner a {
  display: block;
  transition: opacity 0.3s;
}

.platinum-campaign .bottom-banner a:hover {
  opacity: 0.8;
}

.platinum-campaign .bottom-banner img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
  margin-bottom: 0;
}

.platinum-campaign .bottom-banner__title {
  font-size: var(--fz-lg);
  text-align: center;
  font-weight: bold;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
  color: #0B3556;
}

.platinum-campaign .bottom-banner__title::after {
  content: "";
  display: block;
  width: 40px;
  height: 2px;
  background: #0B3556;
  margin: 10px auto 0;
  opacity: 0.7;
}

/* SP */
@media screen and (max-width: 768px) {
  .platinum-campaign .bottom-banner {
    padding: 0 16px;
  }
}

/* ===============================
   5. RESPONSIVE
=============================== */
@media (max-width: 640px) {

    .platinum-campaign section {
        margin: 6rem 0;
    }

    .platinum-campaign .container {
        padding: 0 16px;
    }

    .platinum-campaign .contact-title {
     font-size: clamp(24px, 3vw, 32px);
    margin-bottom: 2.5rem;
}
    .platinum-campaign .text {
        font-size: var(--fz-md);
    }

    .platinum-campaign .campaign-text,
    .platinum-campaign .application-text {
        font-size: var(--fz-sm);
    }

    .platinum-campaign .prize-item-wrap,
    .platinum-campaign .application-wrap {
        flex-direction: column;
    }
}

@media (min-width: 641px) and (max-width: 1024px) {

    .platinum-campaign .container {
        padding: 0 40px;
    }
}