/* ========== System Section ========== */
.system-section {
  background-color: var(--color-dark-2);
  padding: 80px 60px;
}

.system-section__inner {
  max-width: 1500px;
  margin: 0 auto;
}

/* ヘッダー */
.system-section__heading {
  font-family: var(--font-midashi-go);
  font-size: 75px;
  font-weight: 900;
  color: var(--color-white);
  line-height: 1;
}

.system-section__subheading {
  font-family: var(--font-sawarabi);
  font-size: 23px;
  color: #C8C1B3;
  margin-top: 16px;
  margin-bottom: 40px;
}

/* カード */
.system-card {
  border: 5px solid #B2B2A6;
  background-color: #C8C1B30D;
}

/* メイン料金 */
.system-card__main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 60px 180px;
  border-bottom: 1px solid #B2B2A6;
}

.system-card__main-title {
  font-family: var(--font-sawarabi);
  font-size: 45px;
  font-weight: 500;
  color: var(--color-white);
}

.system-card__price-wrap {
  text-align: right;
}

.system-card__all-time {
  font-family: "Noto Serif JP", serif;
  font-size: 20px;
  font-weight: 500;
  color: #C8C1B3;
  opacity: 0.7;
  display: block;
}

.system-card__price {
  font-family: var(--font-sawarabi);
  font-size: 45px;
  font-weight: 500;
  color: #C8C1B3;
}

/* ボディ */
.system-card__body {
  padding: 70px 200px;
}

.system-card__option-title {
  font-family: var(--font-sawarabi);
  font-size: 30px;
  color: #C8C1B3;
  text-align: center;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 14px;
  margin-bottom: 80px;
}

/* 料金テーブル */
.system-card__table {
  display: flex;
  flex-direction: column;
}

.system-card__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 30px;
  border-bottom: 1px solid #C8C1B3;
}

.system-card__row dt {
  font-family: var(--font-sawarabi);
  font-size: 25px;
  color: var(--color-white);
  line-height: 1;
}

.system-card__row dd {
  font-family: var(--font-sawarabi);
  font-size: 25px;
  color: #C8C1B3;
  line-height: 1;
}

/* 備考 */
.system-card__notes {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 50px;
  padding: 30px;
}

.system-card__note {
  display: flex;
  gap: 24px;
  align-items: center;
}

.system-card__note-label {
  font-family: "Noto Serif JP", serif;
  font-size: 25px;
  font-weight: 500;
  color: var(--color-white);
  width: 260px;
  flex-shrink: 0;
  line-height: 1;
}

.system-card__note-value {
  font-family: "Noto Serif JP", serif;
  font-size: 25px;
  color: #C8C1B3;
  line-height: 1;
  text-align: left;
}

.system-card__notice {
  font-family: "Noto Serif JP", serif;
  font-size: 25px;
  font-weight: 500;
  color: #C8C1B3;
}

/* ========== 目安予算・決済方法カード ========== */
.system-budget-card {
  display: flex;
  align-items: stretch;
  border: 5px solid #B2B2A6;
  background-color: #C8C1B30D;
  margin-top: 24px;
}

.system-budget-card__left {
  flex: 1;
  padding: 80px 40px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.system-budget-card__inner {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-start;
}

.system-budget-card__label {
  font-family: var(--font-sawarabi);
  font-size: 30px;
  color: var(--color-white);
}

.system-budget-card__price-box {
  font-family: var(--font-sawarabi);
  font-size: 35px;
  color: #C8C1B3;
  border: 1px solid #C8C1B3;
  background-color: #C8C1B30D;
  padding: 12px 24px;
  display: inline-block;
  align-self: flex-start;
}

.system-budget-card__note {
  font-family: "Noto Serif JP", serif;
  font-size: 18px;
  font-weight: 500;
  color: #C8C1B3;
}

.system-budget-card__divider {
  width: 1px;
  background: linear-gradient(to bottom, transparent 10%, #C8C1B3 10%, #C8C1B3 90%, transparent 90%);
  align-self: stretch;
}

.system-budget-card__right {
  flex: 1;
  padding: 36px 40px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.system-budget-card__right .system-budget-card__inner {
  gap: 20px;
}

.system-budget-card__payment-label {
  font-family: var(--font-sawarabi);
  font-size: 30px;
  color: var(--color-white);
}

.system-budget-card__payment-list {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
}

.system-payment-tag {
  grid-column: span 3;
  font-family: "Noto Serif JP", serif;
  font-size: 20px;
  font-weight: 500;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 8px 16px;
  white-space: nowrap;
  text-align: center;
}

.system-payment-tag:nth-child(n+3) {
  grid-column: span 2;
}

/* ========== インフォグリッド ========== */
.system-info-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 50px;
  margin-top: 24px;
}

.system-info-card {
  border: 5px solid #7D7D7D;
  padding: 32px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}


.system-info-card__label {
  font-family: var(--font-sawarabi);
  font-size: 20px;
  color: #ffffff;
}

.system-info-card__value {
  font-family: var(--font-sawarabi);
  font-size: 48px;
  color: #C8C1B3;
}

/* ========== CONTACTバナー ========== */
.system-contact-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 7px solid #B2B2A6;
  background-color: #C8C1B30D;
  padding: 28px 40px;
  margin-top: 24px;
  gap: 24px;
}

.system-contact-banner__text {
  font-family: var(--font-sawarabi);
  font-size: 20px;
  color: var(--color-white);
  line-height: 1.8;
}

.system-contact-banner__btn {
  font-family: "Noto Serif JP", serif;
  font-size: 20px;
  font-weight: 500;
  color: var(--color-white);
  background-color: #707070;
  padding: 14px 40px;
  white-space: nowrap;
  transition: opacity 0.2s;
}

.system-contact-banner__btn:hover {
  opacity: 0.7;
}

/* ========== LINE Section ========== */
.system-line {
  background-color: var(--color-dark-2);
  padding: 80px 60px 0;
  position: relative;
  overflow: hidden;
}

.system-line__inner {
  max-width: 1500px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  padding-bottom: 60px;
}

.system-line__heading {
  font-family: var(--font-midashi-go);
  font-size: 75px;
  font-weight: 900;
  color: var(--color-white);
  line-height: 1;
}

.system-line__subheading {
  font-family: var(--font-sawarabi);
  font-size: 20px;
  color: #C8C1B3;
  line-height: 1.8;
  margin-top: 8px;
  margin-bottom: 40px;
}

/* カード */
.system-line__card {
  border: 7px solid #B2B2A6;
  display: flex;
  align-items: center;
  gap: 75px;
  padding: 40px;
}

.system-line__card-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.system-line__card-title {
  font-family: var(--font-sawarabi);
  font-size: 40px;
  color: var(--color-white);
}

.system-line__card-body {
  font-family: var(--font-sawarabi);
  font-size: 20px;
  color: #C8C1B3;
  line-height: 2;
}

.system-line__card-note {
  font-family: "Noto Serif JP", serif;
  font-size: 20px;
  font-weight: 500;
  color: #C8C1B3;
}

.system-line__btn {
  display: inline-flex;
  flex-direction: row;
  align-items: center;
  align-self: flex-start;
  gap: 10px;
  margin-top: 24px;
  padding: 12px 28px;
  background-color: #06C755;
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 4px;
  color: #fff;
  text-decoration: none;
  font-family: var(--font-bunkyu-go);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.1em;
  box-shadow: 0 4px 12px rgba(6, 199, 85, 0.4);
  transition: opacity 0.2s;
}

.system-line__btn:hover {
  opacity: 0.8;
}

.system-line__btn-icon {
  display: block;
  flex-shrink: 0;
  width: 22px;
  height: 22px;
}

.system-line__btn-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}

.system-line__btn-sub {
  display: block;
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.08em;
  opacity: 0.85;
}

.system-line__card-qr {
  flex-shrink: 0;
  width: 400px;
}

.system-line__card-qr img {
  width: 100%;
  height: auto;
  display: block;
}

.system-line+.concept__watermark {
  background-color: var(--color-dark-2);
}

/* ========== Mobile ========== */
@media (max-width: 768px) {
  .system-section {
    padding: 60px 24px 32px;
  }

  .system-line__btn {
    align-self: center;
  }

  .system-section__heading {
    font-size: 48px;
  }

  .system-card__main {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 24px;
  }

  .system-card__price-wrap {
    text-align: center;
    margin: auto;
  }

  .system-card__body {
    padding: 24px;
  }

  .system-budget-card {
    flex-direction: column;
  }

  .system-budget-card__divider {
    width: 100%;
    height: 1px;
  }

  .system-info-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .system-info-card {
    padding: 20px 12px;
    gap: 8px;
  }

  .system-contact-banner {
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
  }

  .system-contact-banner__btn {
    width: 100%;
    text-align: center;
    white-space: normal;
  }

  .system-line {
    padding: 60px 24px 0;
  }

  .system-line__card {
    flex-direction: column;
    padding: 24px;
    gap: 24px;
  }

  .system-line__card-text {
    gap: 12px;
  }

  .system-line__card-qr {
    width: 160px;
    align-self: center;
  }

  .system-budget-card__payment-list {
    grid-template-columns: 1fr;
  }

  .system-payment-tag,
  .system-payment-tag:nth-child(n+3) {
    grid-column: span 1;
  }

  .system-payment-tag {
    font-size: 16px;
    white-space: normal;
  }

  .system-section__subheading {
    font-size: 15px;
    margin-bottom: 24px;
  }

  .system-card__main-title {
    font-size: 22px;
    margin: auto;
  }

  .system-card__price {
    font-size: 22px;
  }

  .system-card__option-title {
    font-size: 18px;
    margin-bottom: 32px;
  }

  .system-card__row dt,
  .system-card__row dd {
    font-size: 16px;
  }

  .system-card__notes {
    gap: 25px;
  }

  .system-card__note {
    gap: 8px;
  }

  .system-card__note-label {
    font-size: 14px;
    width: auto;
    min-width: unset;
    flex-shrink: 0;
  }

  .system-card__note-value {
    font-size: 14px;
    flex: 1;
    min-width: 0;
  }

  .system-card__notice {
    font-size: 12px;
  }

  .system-budget-card__left,
  .system-budget-card__right {
    padding: 24px;
  }

  .system-budget-card__label {
    font-size: 24px;
  }

  .system-budget-card__payment-label {
    font-size: 20px;
  }

  .system-budget-card__price-box {
    font-size: 20px;
  }

  .system-budget-card__note {
    font-size: 13px;
  }

  .system-info-card__label {
    font-size: 14px;
  }

  .system-info-card__value {
    font-size: 36px;
  }

  .system-contact-banner__text {
    font-size: 15px;
  }

  .system-line__heading {
    font-size: 48px;
  }

  .system-line__subheading {
    font-size: 14px;
  }

  .system-line__card-title {
    font-size: 24px;
  }

  .system-line__card-body {
    font-size: 14px;
  }

  .system-line__card-note {
    font-size: 13px;
  }
}