/* ==========================================================================
   TOPページ FEATURES（オカモト技工が選ばれる理由・特徴）
   出典: サイトデザイン参照画像（FEATURES）
   背景写真はインナーラップの外、画面幅の1/3を右側に占有（フルブリード）。
   ========================================================================== */

.features {
  position: relative;
  min-height: 920px;
  background: #D0D0C8;
  overflow: hidden;
}

.features__bg {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 33.333%;
  z-index: 0;
}
.features-bg-swiper,
.features-bg-swiper .swiper-wrapper,
.features-bg-swiper .swiper-slide {
  width: 100%;
  height: 100%;
}
.features-bg-swiper--sp {
  display: none;
}
.features__bg-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.features__inner {
  position: relative;
  z-index: 1;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--section-space-top) 24px var(--section-space-bottom);
}

.features__title {
  margin: var(--section-title-gap) 0 0;
  font-size: var(--section-title-size);
  font-weight: 800;
  line-height: var(--section-title-line-height);
  color: var(--color-text-on-light);
  text-wrap: balance;
}

.features__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: var(--section-content-gap);
}

.features-card-swiper {
  overflow: visible;
}

/* ---- カード（背景は半透明。写真と重なっても文字は判読できるよう本文色は不透明のまま） ---- */
.feature-card {
  position: relative;
  min-height: 380px;
  box-sizing: border-box;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 16px;
  padding: 0 20px 34px;
  text-align: center;
  backdrop-filter: blur(10px);
}

.feature-card__ribbon {
  position: absolute;
  top: 20px;
  left: 20px;
  right: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #2B2B2B;
  color: #fff;
  min-height: 50px;
  font-size: 15px;
  font-weight: normal;
  padding: 10px 16px;
  border-radius: 8px;
  white-space: nowrap;
  letter-spacing: 0.5px;
}
.feature-card__ribbon-tail {
  position: absolute;
  bottom: -6px;
  left: 50%;
  width: 13px;
  height: 13px;
  background: #2B2B2B;
  transform: translateX(-50%) rotate(45deg);
}

.feature-card__circle {
  display: block;
  width: 118px;
  height: 118px;
  margin: 105px auto 24px;
  object-fit: contain;
}

.feature-card__heading {
  margin: 0 0 14px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-on-light);
  letter-spacing: 0.5px;
}
.feature-card__body {
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
  text-align: left;
  color: #2B2B2B;
}

/* ==========================================================================
   レスポンシブ
   ========================================================================== */
@media (max-width: 860px) {
  /*
   * SPは背景画像と本文を通常フローで積むため、高さを固定しない。
   * 1010pxを確保すると端末幅やカード内の改行量によって、カード下に
   * 中身のないグレーの余白だけが残ってしまう。
   */
  .features { min-height: 0; }
  .features {
    overflow: hidden;
  }

  /* SPでは写真をセクション上部の横長ビジュアルとして表示 */
  .features__bg {
    position: relative;
    top: auto;
    right: auto;
    bottom: auto;
    width: 100%;
    height: clamp(180px, 65vw, 240px);
  }
  .features__bg-img {
    object-position: center 55%;
  }
  .features-bg-swiper--pc {
    display: none;
  }
  .features-bg-swiper--sp {
    display: block;
    overflow: hidden;
  }
  .features-bg-swiper--sp .swiper-wrapper {
    transition-timing-function: linear !important;
  }
  .features-bg-swiper--sp .swiper-slide {
    width: 84%;
  }

  .features__inner {
    padding: 58px 20px 80px;
  }
  .features .section-eyebrow {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 2px 0;
  }
  .features .section-eyebrow__en {
    grid-column: 1 / -1;
    font-size: 24px;
    line-height: 1.1;
  }
  .features .section-eyebrow__rule {
    display: none;
  }
  .features .section-eyebrow__ja {
    grid-column: 1 / -1;
    font-size: 10px;
    font-weight: 400;
  }
  .features__title {
    margin-top: 28px;
    font-size: 16px;
    line-height: 1.75;
    letter-spacing: .04em;
  }

  /* 次のカードを少し見せ、横方向へ直感的にスワイプできる */
  .features-card-swiper {
    width: calc(100% + 20px);
    overflow: hidden;
  }
  .features__cards {
    display: flex;
    gap: 0;
    width: auto;
    margin-top: 52px;
    padding: 0 20px 4px 0;
    overflow: visible;
  }
  .features__cards::-webkit-scrollbar {
    display: none;
  }
  .feature-card {
    flex: 0 0 min(336px, calc(100vw - 94px));
    min-height: 378px;
    padding: 0 20px 30px;
    border-radius: 15px;
    backdrop-filter: none;
  }
  .feature-card__ribbon {
    top: 20px;
    left: 20px;
    right: 20px;
    min-height: 50px;
    padding: 10px 8px;
    font-size: 13px;
    letter-spacing: .02em;
  }
  .feature-card__circle {
    width: 112px;
    height: 112px;
    margin: 105px auto 26px;
  }
  .feature-card__heading {
    margin-bottom: 12px;
    font-size: 15px;
    letter-spacing: .02em;
  }
  .feature-card__body {
    font-size: 13px;
    line-height: 1.9;
    text-align: left;
  }
}

@media (max-width: 767px) {
  /*
   * カード列はSwiperで初期化しないため、SPではネイティブスクロールに一本化する。
   * インナー余白の外までスクロール面を広げつつ、カード自体は20pxの安全余白から始める。
   */
  .features-card-swiper {
    width: calc(100% + 40px);
    margin-left: -20px;
    overflow-x: auto !important;
    overflow-y: hidden;
    overscroll-behavior-inline: contain;
    scroll-snap-type: x proximity;
    scroll-padding-left: 20px;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-x pan-y;
  }

  .features-card-swiper::-webkit-scrollbar { display: none; }

  .features__cards {
    width: max-content !important;
    gap: 12px;
    padding: 0 20px 4px !important;
    transform: none !important;
  }

  .feature-card {
    flex: 0 0 min(336px, calc(100vw - 87px));
    min-height: 350px;
    scroll-snap-align: start;
  }
  .feature-card__circle {
    width: 78px;
    height: 78px;
    margin: 105px auto 24px;
  }
  .feature-card__body { font-size: 14px; line-height: 1.85; }
}

/* Tablet portrait: 3 cards are shown together instead of relying on swipe. */
@media (min-width: 768px) and (max-width: 860px) {
  .features__cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    width: 100%;
    margin-right: 0;
    padding-right: 0;
    overflow: visible;
  }

  .feature-card {
    width: auto;
    min-width: 0;
    min-height: 370px;
    padding-inline: 14px;
  }

  .feature-card__ribbon {
    left: 14px;
    right: 14px;
    padding-inline: 6px;
    font-size: 10px;
    white-space: nowrap;
  }

  .feature-card__circle {
    width: 94px;
    height: 94px;
    margin-top: 104px;
    margin-bottom: 22px;
  }

  .feature-card__heading {
    font-size: 12px;
  }

  .feature-card__body {
    font-size: 11px;
    line-height: 1.8;
  }
}