@charset "utf-8";
/* diamond ページ専用スタイル
   dark-theme.css から分離。複数ページで共有するクラスは
   dark-theme.css 側に残してある。 */

.dm-center-btn {
  text-align: center;
  margin-top: 8rem;
}
.dm-two-col {
  display: flex;
  gap: 6rem;
  align-items: stretch;
  padding: 4rem 0;
}
@media screen and (max-width: 768px) {
.dm-two-col {
    flex-direction: column;
    gap: 3rem;
    padding: 2rem 0;
  }
}
.dm-slogan-step {
  margin-top: 3rem;
  margin-bottom: 3.4rem;
}
.dm-separator {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.1);
  margin: 0 0 2.3rem;
}
.dm-separator-phase {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.1);
  margin: 0 0 4rem;
}
.dm-timeline {
  margin-top: 6rem;
  position: relative;
  padding-left: 12rem;
}
@media screen and (max-width: 768px) {
.dm-timeline {
    padding-left: 0;
    margin-top: 4rem;
  }
}
.dm-timeline__line {
  position: absolute;
  left: 4rem;
  top: 0;
  bottom: 0;
  width: 1px;
  background: rgba(115,103,76,0.4);
}
@media screen and (max-width: 768px) {
.dm-timeline__line {
    display: none;
  }
}
.dm-phase {
  position: relative;
  padding-bottom: 12rem;
}
@media screen and (max-width: 768px) {
.dm-phase {
    padding-bottom: 6rem;
  }
}
.dm-phase--last {
  position: relative;
}
.dm-step-circle {
  position: absolute;
  left: -12rem;
  top: 0;
  width: 8rem;
  height: 8rem;
  border-radius: 50%;
  background: #383838;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 2;
}
@media screen and (max-width: 768px) {
.dm-step-circle {
    position: static;
    margin: 0 auto 2rem !important;
    width: 6rem;
    height: 6rem;
  }
}
.dm-step-circle__label {
  font-family: var(--font-en), var(--font-jp-medium);
  font-size: 1.1rem;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.1em;
  line-height: 1;
}
.dm-step-circle__num {
  font-family: var(--font-en), var(--font-jp-medium);
  font-size: 3.6rem;
  font-weight: bold;
  color: #fff;
  line-height: 1;
  margin-top: -0.1em;
}
.dm-phase-header {
  display: flex;
  align-items: baseline;
  gap: 2rem;
  margin-bottom: 2rem;
  background: #e1e1e1;
  padding: 1.4rem 2.4rem;
  border-radius: 8px;
}
@media screen and (max-width: 768px) {
.dm-phase-header {
    flex-direction: column;
    gap: 0.5rem;
    align-items: center !important;
    text-align: center !important;
  }
}
.dm-phase-title {
  font-size: 5.5rem;
  font-weight: bold;
  margin: 0;
}
@media screen and (max-width: 768px) {
.dm-phase-title {
    font-size: 3.6rem;
  }
}
.dm-phase-subtitle {
  font-size: 2.4rem;
  color: #000000;
  font-family: var(--font-en), var(--font-jp-medium);
  letter-spacing: 0.05em;
}
@media screen and (max-width: 768px) {
.dm-phase-subtitle {
    font-size: 1.8rem;
  }
}
.dm-phase-content {
  display: flex;
  gap: 4rem;
  align-items: stretch;
}
@media screen and (max-width: 768px) {
.dm-phase-content {
    flex-direction: column-reverse;
    gap: 4rem;
  }
.dm-gold-bar__title {
    font-size: 2.4rem !important;
    line-height: 1.6 !important;
  }
.dm-gold-bar__desc {
    font-size: 1.4rem !important;
  }
.dm-card__img-wrap {
    aspect-ratio: 16/9 !important;
  }
.dm-c20-header {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 0.8rem !important;
  }
.dm-c20-badge {
    font-size: 2rem !important;
  }
.dm-c20-num {
    font-size: 1.2rem !important;
  }
.dm-c20-label {
    font-size: 1.8rem !important;
    font-weight: 400 !important;
    color: #555 !important;
  }
.dm-hcard .c-txt-s {
    font-size: 1.5rem !important;
  }
.dm-c20-label__en {
    font-size: 1.2rem !important;
  }
}
.dm-phase-slogan {
  margin-bottom: 3rem;
}
.dm-phase-photo {
  flex: 0 0 40%;
  border-radius: 10px;
  overflow: hidden;
  min-height: 250px;
}
@media screen and (max-width: 768px) {
.dm-phase-photo {
    min-height: 180px;
    flex: none;
  }
}
.dm-phase-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: none;
}
.dm-gold-bar {
  padding-left: 2.5rem;
  border-left: 5px solid #cacaca;
  margin-bottom: 2rem;
}
.dm-gold-bar--mt {
  padding-left: 2.5rem;
  border-left: 5px solid #cacaca;
  margin-top: 6rem;
  margin-bottom: 2rem;
}
.dm-gold-bar__title {
  font-size: 3.2rem;
  font-weight: bold;
  color: #000000;
  margin-bottom: 0.5rem;
}
.dm-gold-bar__desc {
  font-size: 1.8rem;
  color: #fff;
  font-family: var(--font-jp-medium);
}
.dm-card__img-wrap {
  overflow: hidden;
  aspect-ratio: 3/3;
  position: relative;
}
.dm-card__img-wrap--wide {
  overflow: hidden;
  aspect-ratio: 16/9;
  position: relative;
}
.dm-card__cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
  filter: none;
}
.dm-card__icon-wrap--sm {
  text-align: center;
  margin-top: 1rem;
  margin-bottom: 1rem;
}
.dm-card__icon--sm {
  font-size: 2rem;
  color: #000000;
}
.dm-card__more-wrap {
  margin-top: 1.5rem;
  text-align: center;
}
.dm-card__more-btn {
  display: inline-block;
  border: 1px solid #cacaca;
  border-radius: 30px;
  padding: 0.8rem 2rem;
  font-size: 1.2rem;
  color: #000000;
  transition: all 0.3s;
}
.dm-card__more-btn--sm {
  display: inline-block;
  border: 1px solid #cacaca;
  border-radius: 30px;
  padding: 0.6rem 1.5rem;
  font-size: 1.1rem;
  color: #000000;
  transition: all 0.3s;
}
.dm-c20-domain {
  margin-top: 4rem;
  margin-bottom: 2rem;
}
.dm-c20-domain--last {
  margin-top: 3rem;
}
.dm-c20-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}
.dm-c20-badge {
  font-size: 1.5rem;
  font-weight: bold;
  color: #ffffff;
  margin: 0;
  padding: 0.6rem 1.2rem;
  background: #383838;
  border-radius: 6px;
  white-space: nowrap;
}
.dm-c20-desc {
  font-size: 1.5rem;
  color: #d8dbdf;
  margin: 0;
}
.dm-c20-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.5rem;
  font-family: -apple-system, BlinkMacSystemFont, 'Hiragino Sans', 'Yu Gothic', 'Noto Sans JP', sans-serif;
}
@media screen and (max-width: 768px) {
.dm-c20-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
}
.dm-c20-item {
  border: 1px solid rgba(115,103,76,0.4);
  border-radius: 8px;
  padding: 1.8rem 1.5rem;
  text-align: left;
  background: linear-gradient(to bottom, #2a2a2a, #111);
  display: flex;
  align-items: center;
  gap: 0.8rem;
  cursor: pointer;
  transition: all 0.3s;
}
.dm-c20-num {
  font-size: 0.9rem;
  color: #000000;
  margin-right: 0.3rem;
}
.dm-c20-label {
  font-size: 1.3rem;
  font-weight: bold;
  flex: 1;
}
.dm-c20-label__en {
  display: block;
  margin-top: -0.2em;
  font-size: 0.9rem;
  font-weight: normal;
  color: #000000;
  font-family: var(--font-en), var(--font-jp-medium);
}
.dm-c20-info {
  color: #000000;
  font-size: 1.4rem;
  flex-shrink: 0;
}
.dm-c20-wrap {
  padding: 0;
  margin-bottom: 0;
}
.dm-polish-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 1.5rem;
  margin-top: 4rem;
  align-items: stretch;
}
/* アイコン削除に伴い、見出し上に少し余白を追加（特徴の磨き方カード） */
.dm-polish-grid .dm-card__heading {
  margin-top: 1rem;
}
.dm-polish-grid .dm-operator {
  align-self: center;
}
@media screen and (max-width: 768px) {
.dm-polish-grid {
    grid-template-columns: 1fr;
    gap: 5rem;
  }
}
.dm-operator {
  text-align: center;
}
@media screen and (max-width: 768px) {
.dm-operator {
    display: none;
  }
}
.dm-operator__icon {
  font-size: 6.5rem;
  color: #000000;
}
.dm-hcard {
  display: flex;
  gap: 0;
  border: 1px solid #cacaca;
  border-radius: 16px;
  overflow: hidden;
  background: #181a1e;
  cursor: pointer;
  transition: all 0.3s ease;
}
@media screen and (max-width: 768px) {
.dm-hcard {
    flex-direction: column;
  }
}
.dm-hcard__img {
  flex: 0 0 40%;
  overflow: hidden;
  position: relative;
}
/* 支援カード（area-card）のみ: 写真を単色ブロック＋ロゴ＋番号に置き換え */
.area-card .dm-hcard__img {
  background: #383838;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.2rem;
  padding: 2rem;
}
/* 黒ブロックに dia14.jpg を半透明で重ねる（ロゴ・番号は前面） */
.area-card .dm-hcard__img::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("../image/diamond/dia14.jpg") center / cover no-repeat;
  opacity: 0.18;
  pointer-events: none;
}
.area-card .dm-hcard__logo,
.area-card .dm-hcard__img .dm-hcard__label {
  position: relative;
  z-index: 1;
}
.area-card .dm-hcard__logo {
  width: 60%;
  max-width: 14rem;
  height: auto;
  /* 濃色ロゴを暗背景上で見えるよう白抜きに */
  filter: brightness(0) invert(1);
}
.area-card .dm-hcard__img .dm-hcard__label {
  color: #ffffff !important;
  font-size: 1.6rem;
  font-weight: bold;
  letter-spacing: 0.08em;
  line-height: 1.4;
  text-align: center;
}
@media screen and (max-width: 768px) {
.dm-hcard__img {
    flex: none;
    aspect-ratio: 16/9;
  }
}
.dm-hcard__body {
  flex: 1;
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}
.dm-hcard__icon-wrap {
  margin-bottom: 0.8rem;
}
.dm-hcard__heading {
  font-size: 2.6rem;
  font-weight: bold;
  margin-bottom: 0.3rem;
  line-height: 1.4;
}
.dm-hcard__en {
  font-size: 1rem;
  color: #000000;
  margin-bottom: 1rem;
  font-family: var(--font-en), var(--font-jp-medium);
  letter-spacing: 0.05em;
}
.dm-hcard__more-wrap {
  margin-top: 1.5rem;
}
.dm-grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 4rem;
}
@media screen and (max-width: 768px) {
.dm-grid-2col {
    grid-template-columns: 1fr;
    gap: 5rem;
  }
}
.dm-grid-2col--mt6 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  margin-top: 6rem;
}
@media screen and (max-width: 768px) {
.dm-grid-2col--mt6 {
    grid-template-columns: 1fr;
  }
}
/* スマホのみ: プロセスカードを1カラムに */
@media screen and (max-width: 768px) {
  .dm-process-grid {
    grid-template-columns: 1fr !important;
  }
}
.dm-process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-top: 6rem;
  margin-bottom: 6rem;
}
@media screen and (max-width: 768px) {
.dm-process-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem 1.5rem;
    row-gap: 4rem;
    margin-top: 4rem;
    margin-bottom: 4rem;
  }
.dm-process-card {
    padding-left: 0 !important;
    padding-right: 0 !important;
  }
}
.dm-process-card {
  border: 1px solid rgba(115,103,76,0.4);
  border-radius: 10px;
  padding: 3rem 2rem;
  text-align: center;
  font-family: -apple-system, BlinkMacSystemFont, 'Hiragino Sans', 'Yu Gothic', 'Noto Sans JP', sans-serif;
  display: flex;
  flex-direction: column;
}
.dm-process-card__num {
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  background: #383838;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: -5rem auto 1.5rem;
}
.dm-process-card__num-txt {
  font-family: var(--font-en), var(--font-jp-medium);
  font-size: 1.8rem;
  font-weight: bold;
  color: #fff;
}
.dm-process-card__title {
  font-size: 1.5rem;
  font-weight: bold;
  margin-bottom: 0.4rem;
  line-height: 1.8;
  color: #000000;
  margin-top: 1rem;
}
.dm-process-card__icon {
  font-size: 4.5rem;
  color: #000000;
  margin-bottom: 1.5rem;
}
img.dm-process-card__icon {
  width: 7rem;
  height: 7rem;
  object-fit: contain;
  margin-left: auto;
  margin-right: auto;
}
.dm-process-card__txt {
  font-size: 1.3rem;
  color: #d8dbdf;
  line-height: 1.8;
  flex: 1;
}
.dm-area-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: none;
}
.dm-area-en {
  font-size: 1.1rem;
  color: #000000;
  margin-bottom: 1rem;
  font-family: var(--font-en), var(--font-jp-medium);
}
.merit-card,
.model-click,
.method-card,
.step-card,
.dm-hcard,
.svg-piece,
.worry-card,
.flow-card,
.rad-card {
  cursor: pointer;
}