/* ===== Research Page Styles (styles7.css) ===== */

/* ===== Header Dropdown (shared) ===== */
.header-dropdown-wrap {
  position: relative;
}
.header-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: linear-gradient(135deg, rgba(251,233,237,0.5), rgba(234,244,255,0.5));
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.4);
  box-shadow: 0 4px 20px rgba(0,0,0,0.06), 0 1px 0 rgba(255,255,255,0.5) inset;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.3s ease, opacity 0.3s ease;
  z-index: 100;
}
.header-dropdown.open {
  max-height: 200px;
  opacity: 1;
}
.header-dropdown-item {
  padding: 12px 24px;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-primary);
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.2s;
}
.header-dropdown-item:hover {
  background: rgba(117,177,255,0.12);
}
.header-nav-item .dropdown-icon {
  transition: transform 0.3s;
}
.header-nav-item.dropdown-open .dropdown-icon {
  transform: rotate(180deg);
}

/* ===== Shared Section Styles ===== */
.s7-section-icon {
  width: 48px;
  height: 66px;
  flex-shrink: 0;
}
.s7-section-header {
  display: flex;
  flex-direction: column;
  padding-bottom: 40px;
}
.s7-jp-title-row {
  display: flex;
  align-items: center;
}
.s7-jp-title {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 500;
  font-size: 28px;
  line-height: 1.5;
  color: #333333;
}
.s7-en-label {
  font-family: 'Playfair Display', serif;
  font-weight: 500;
  font-size: 96px;
  line-height: 1;
  letter-spacing: -0.96px;
  text-transform: capitalize;
  opacity: 0.08;
  margin-bottom: -40px;
  padding-bottom: 10px;
  white-space: nowrap;
}
.s7-en-label-white {
  font-family: 'Playfair Display', serif;
  font-weight: 500;
  font-size: 96px;
  line-height: 1;
  letter-spacing: -0.96px;
  text-transform: capitalize;
  color: rgba(255,255,255,0.15);
  margin-bottom: -40px;
  padding-bottom: 10px;
  white-space: nowrap;
  text-align: center;
  opacity: 1;
}

/* ===== FV (Hero) ===== */
.s7-fv {
  position: relative;
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  height: 581px;
  overflow: hidden;
}
.s7-fv-deco {
  position: absolute;
  right: -100px;
  top: 60px;
  width: 600px;
  height: 460px;
  background: radial-gradient(ellipse at 30% 50%, rgba(117,177,255,0.15) 0%, transparent 70%),
              radial-gradient(ellipse at 70% 40%, rgba(255,117,118,0.12) 0%, transparent 70%),
              radial-gradient(ellipse at 50% 70%, rgba(180,130,255,0.08) 0%, transparent 70%);
  filter: blur(40px);
  pointer-events: none;
  z-index: 0;
}
.s7-fv-image {
  position: absolute;
  right: 160px;
  top: 175px;
  width: 643px;
  height: 337px;
  border-radius: 24px;
  overflow: hidden;
  opacity: 0;
  transform: translateX(100px);
  animation: s7-slide-in-right 0.8s cubic-bezier(0.22, 1, 0.36, 1) 0.3s forwards;
}
@keyframes s7-slide-in-right {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
.s7-fv-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.s7-fv-content {
  position: absolute;
  left: 160px;
  top: 175px;
  display: flex;
  flex-direction: column;
  gap: 48px;
  z-index: 1;
}
.s7-fv-en {
  font-family: 'Playfair Display', serif;
  font-weight: 500;
  font-size: 96px;
  line-height: 1;
  letter-spacing: -0.96px;
  text-transform: capitalize;
}
.s7-fv-title-group {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.s7-fv-title-row {
  display: flex;
  align-items: flex-start;
}
.s7-fv-title-text h1 {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 500;
  font-size: 28px;
  line-height: 1.5;
  color: var(--text-primary);
}
.s7-fv-desc {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.8;
  color: #666666;
  max-width: 392px;
}

/* ===== Content Layout (no sidebar) ===== */
.s7-content {
  max-width: 1440px;
  margin: 0 auto;
  padding: 48px 160px 0;
  display: flex;
  flex-direction: column;
  gap: 88px;
}
.s7-section {
  scroll-margin-top: 120px;
}

/* ===== About Section ===== */
.s7-about-content {
  display: flex;
  gap: 24px;
}
.s7-about-left {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.s7-about-right {
  width: 453px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.s7-about-text-block {
  padding: 24px 16px 0;
  margin-bottom: 32px;
}
.s7-about-heading {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 700;
  font-size: 28px;
  line-height: 1.5;
  color: #333333;
  margin-bottom: 28px;
}
.s7-about-body {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.8;
  color: #333333;
}
.s7-about-card {
  border-radius: 16px;
  padding: 0 20px 16px;
}
.s7-about-card-light {
  background: #EAF4FF;
  margin: 0 16px;
}
.s7-about-card-dark {
  background: #2E3F63;
}
.s7-about-card-title {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 700;
  font-size: 20px;
  line-height: 1.5;
  color: #333333;
  padding-top: 12px;
  margin-bottom: 8px;
}
.s7-about-card-dark .s7-about-card-title {
  color: #ffffff;
}
.s7-about-card-body {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.8;
  color: #666666;
}
.s7-about-card-dark .s7-about-card-body {
  color: rgba(255,255,255,0.85);
}
.s7-about-image {
  width: 453px;
  height: 254px;
  border-radius: 12px;
  overflow: hidden;
}
.s7-about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== Results Section ===== */
.s7-graphs {
  display: flex;
  gap: 10px;
  margin-bottom: 24px;
}
.s7-graph-title {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 700;
  font-size: 20px;
  line-height: 1.5;
  color: #0a0a0a;
  text-align: center;
}
.s7-graphs-left {
  display: flex;
  flex-direction: column;
  gap: 20px;
  flex: 1;
  min-width: 0;
}
.s7-graphs-right-col {
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: 399px;
  flex-shrink: 0;
}
.s7-graph-item {
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
  flex: 1;
  min-width: 0;
}
.s7-graph-item img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.s7-graph-right {
  width: 399px;
  flex-shrink: 0;
  flex: none;
}
.s7-result-cards {
  display: flex;
  gap: 24px;
}
.s7-result-card {
  flex: 1;
  border-radius: 12px;
  overflow: hidden;
  background: rgba(255,255,255,0.6);
  backdrop-filter: blur(4px);
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}
.s7-result-card-header {
  padding: 12px 20px;
  background: linear-gradient(135deg, rgba(255,117,118,0.08), rgba(117,177,255,0.08));
}
.s7-result-card-header h4 {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 700;
  font-size: 18px;
  line-height: 1.5;
  color: #E8637A;
}
.s7-result-card-body {
  padding: 16px 20px;
}
.s7-result-card-body p {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 400;
  font-size: 14px;
  line-height: 1.8;
  color: #666666;
}

/* ===== Method Text Section ===== */
.s7-method-content {
  display: flex;
  gap: 24px;
}
.s7-method-left {
  flex: 1;
  min-width: 0;
  display: flex;
  gap: 0;
  padding-top: 60px;
}
.s7-method-illust {
  width: 130px;
  height: auto;
  object-fit: contain;
  flex-shrink: 0;
  align-self: flex-start;
  margin-left: 48px;
}
.s7-method-left-text {
  flex: 1;
  min-width: 0;
  margin-left: -12px;
}
.s7-method-label {
  display: inline-block;
  padding: 12px 20px;
  border-radius: 8px;
  background: #CFE7FF;
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 700;
  font-size: 20px;
  line-height: 1.5;
  color: #333333;
  margin-bottom: 32px;
}
.s7-method-body {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.8;
  color: #333333;
}
.s7-method-right {
  width: 455px;
  flex-shrink: 0;
}
.s7-method-steps {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-left: 24px;
}
.s7-method-steps-arrow {
  position: absolute;
  left: 100px;
  top: -12px;
  width: 62px;
  height: calc(100% + 24px);
  z-index: 0;
}
.s7-method-step {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  height: 128px;
}
.s7-method-step-text {
  width: 206px;
  flex-shrink: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px;
  padding-left: 0;
  white-space: nowrap;
}
.s7-method-step-num {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 500;
  font-size: 18px;
  line-height: 1.4;
  background: var(--gradient-tear-vivid);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.s7-method-step-title {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 700;
  font-size: 20px;
  line-height: 1.5;
  color: #333333;
}
.s7-method-step-sub {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 400;
  font-size: 13px;
  line-height: 1.5;
  color: #999999;
  width: 100%;
  text-align: center;
}
.s7-method-step-image {
  width: 225px;
  height: 128px;
  border-radius: 64px;
  overflow: hidden;
  flex-shrink: 0;
}
.s7-method-step-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.s7-method-note {
  margin-top: 24px;
  padding: 12px 20px;
  border-radius: 16px;
  background: #EAF4FF;
}
.s7-method-note-title {
  display: inline;
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 700;
  font-size: 20px;
  line-height: 1.5;
  color: #333333;
  padding-bottom: 4px;
  border-bottom: 1px solid #333333;
}
.s7-method-note-body {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.8;
  color: #333333;
  padding-top: 16px;
}

/* ===== Method Visual Section (full-width) ===== */
.s7-method-visual-section {
  position: relative;
  width: 100%;
  margin-top: 88px;
  padding: 80px 0;
  overflow: hidden;
}
.s7-method-visual-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, #75B1FF 0%, #9B7EC8 40%, #E8A0B0 70%, #FF7576 100%);
  z-index: 0;
}
.s7-method-visual-inner {
  position: relative;
  z-index: 1;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 160px;
}
.s7-method-visual-content {
  display: flex;
  gap: 48px;
  margin-top: 32px;
  background: rgba(255,255,255,0.95);
  border-radius: 24px;
  padding: 37px 24px;
  align-items: center;
}
.s7-method-visual-left {
  width: 525px;
  flex-shrink: 0;
}
.s7-method-visual-img-main {
  width: 100%;
  border-radius: 16px;
}
.s7-method-visual-right {
  flex: 1;
  min-width: 0;
}
.s7-method-visual-steps {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-left: 24px;
}
.s7-method-visual-steps-arrow {
  position: absolute;
  left: -24px;
  top: -20px;
  width: 124px;
  height: calc(100% + 40px);
  z-index: 0;
}
.s7-method-visual-step {
  position: relative;
  z-index: 1;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.s7-method-visual-step-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  background: linear-gradient(90deg, #75B1FF, #FF7576);
}
.s7-method-visual-step-label {
  font-family: 'Playfair Display', serif;
  font-weight: 500;
  font-size: 20px;
  line-height: 1.4;
  letter-spacing: 0.4px;
  color: #ffffff;
  position: relative;
  top: -4px;
}
.s7-method-visual-step-num {
  font-size: 30px;
  letter-spacing: 0.6px;
}
.s7-method-visual-step-name {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 700;
  font-size: 20px;
  line-height: 1.5;
  color: #ffffff;
}
.s7-method-visual-step-body {
  padding: 20px 12px;
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 400;
  font-size: 14px;
  line-height: 1.8;
  color: #333333;
  background: #fff;
}

/* ===== Original Article Section ===== */
.s7-article-content {
  display: flex;
  gap: 24px;
}
.s7-article-left {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.s7-article-text-block {
  padding: 24px 16px;
}
.s7-article-heading {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 700;
  font-size: 28px;
  line-height: 1.5;
  color: #333333;
  margin-bottom: 28px;
}
.s7-article-body {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.8;
  color: #333333;
}
.s7-article-quote {
  padding: 12px 20px;
  border-radius: 12px;
  background: #EAF4FF;
  border-left: 2px solid #ccc;
  margin: 0 16px;
}
.s7-article-quote p {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.8;
  color: #666666;
}
.s7-article-right {
  width: 453px;
  height: 319px;
  flex-shrink: 0;
  position: relative;
  border-radius: 12px;
  overflow: hidden;
}
.s7-article-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.s7-article-journals {
  position: absolute;
  right: 12px;
  bottom: 12px;
}
.s7-article-journals img {
  height: 147px;
  border-radius: 8px;
}
.s7-article-refs {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.s7-article-ref {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 400;
  font-size: 12px;
  line-height: 1.6;
  color: #666666;
}
.s7-article-ref em {
  font-style: italic;
}

/* ============================================= */
/* ===== SP Responsive (max-width: 767px) ===== */
/* ============================================= */
@media (max-width: 767px) {

  body { overflow-x: hidden; }

  /* ===== FV ===== */
  .s7-fv {
    height: auto;
    overflow: hidden;
    display: flex;
    flex-direction: column;
  }
  .s7-fv-deco { display: none; }
  .s7-fv-content {
    position: relative;
    left: auto;
    top: auto;
    padding: 72px 12px 24px;
    gap: 24px;
    width: 100%;
    box-sizing: border-box;
    order: 1;
  }
  .s7-fv-en {
    font-size: 48px;
    line-height: 1.1;
    letter-spacing: 0;
  }
  .s7-fv-title-group { gap: 0; }
  .s7-fv-title-row h1 { font-size: 20px; }
  .s7-fv-desc {
    font-size: 15px;
    white-space: normal;
  }
  .s7-fv-desc br { display: none; }
  .s7-fv-image {
    position: relative;
    right: auto;
    top: auto;
    width: calc(100% - 24px);
    height: 184px;
    margin: 0 12px;
    border-radius: 16px;
    opacity: 1;
    transform: none;
    animation: none;
    order: 2;
  }
  .s7-section-icon { width: 48px; height: 66px; }

  /* ===== Content ===== */
  .s7-content {
    padding: 44px 12px 44px;
    gap: 44px;
  }
  .s7-section {
    scroll-margin-top: 60px;
  }

  /* ===== Section Headers ===== */
  .s7-section-header {
    padding-bottom: 24px;
  }
  .s7-en-label {
    font-size: 48px;
    line-height: 1.1;
    opacity: 0.08;
    margin-bottom: -40px;
    padding-bottom: 10px;
  }
  .s7-en-label-white {
    font-size: 48px;
    line-height: 1.1;
    margin-bottom: -40px;
    padding-bottom: 10px;
  }
  .s7-jp-title { font-size: 20px; }

  /* ===== About ===== */
  .s7-about-content {
    flex-direction: column;
    gap: 24px;
  }
  .s7-about-left {
    width: 100%;
    padding-top: 0;
  }
  .s7-about-right {
    width: 100%;
  }
  .s7-about-heading {
    font-size: 20px;
    display: inline-block;
    background: #fff;
    padding: 0 8px;
    box-shadow: 0px 8px 16px rgba(0,0,0,0.04);
  }
  .s7-about-body {
    font-size: 15px;
    line-height: 1.8;
  }
  .s7-about-body br { display: none; }
  .s7-about-image {
    width: 100%;
    height: 200px;
    border-radius: 12px;
  }
  .s7-about-card {
    padding: 16px;
    border-radius: 12px;
  }
  .s7-about-card-title { font-size: 18px; }
  .s7-about-card-body { font-size: 14px; }
  .s7-about-text-block {
    margin-bottom: 16px;
  }

  /* ===== Results ===== */
  .s7-graphs {
    flex-direction: column;
    gap: 24px;
  }
  .s7-graph-title {
    font-size: 16px;
  }
  .s7-graphs-left {
    width: 100%;
  }
  .s7-graphs-left-scroll {
    overflow-x: scroll;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 8px;
  }
  .s7-graphs-left-scroll::-webkit-scrollbar {
    height: 4px;
  }
  .s7-graphs-left-scroll::-webkit-scrollbar-track {
    background: #f0f0f0;
    border-radius: 2px;
  }
  .s7-graphs-left-scroll::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 2px;
  }
  .s7-graphs-left-scroll .s7-graph-item {
    width: 700px;
    min-width: 700px;
    flex-shrink: 0;
  }
  .s7-graphs-left-scroll .s7-graph-item img {
    width: 700px;
    height: auto;
  }
  .s7-graphs-right-col {
    width: 100%;
  }
  .s7-graph-right {
    width: 100%;
  }
  .s7-graph-item img {
    width: 100%;
    height: auto;
  }
  .s7-result-cards {
    flex-direction: column;
    gap: 16px;
  }
  .s7-result-card {
    width: 100%;
  }
  .s7-result-card-header {
    padding: 12px 16px;
  }
  .s7-result-card-header h4 { font-size: 16px; }
  .s7-result-card-body {
    padding: 12px 16px;
  }
  .s7-result-card-body p { font-size: 14px; }

  /* ===== Method ===== */
  .s7-method-content {
    flex-direction: column;
    gap: 24px;
  }
  .s7-method-left {
    width: 100%;
    padding-top: 0;
    flex-direction: column;
    align-items: flex-start;
    position: relative;
  }
  .s7-method-illust {
    position: absolute;
    right: 40px;
    top: -80px;
    width: 50px;
    height: auto;
    margin: 0;
    transform: rotate(-7deg);
    z-index: 2;
  }
  .s7-method-left-text {
    margin-left: 0;
    width: 100%;
    position: relative;
    background: #fff;
    border: 2px dashed #75B1FF;
    border-radius: 12px;
    padding: 0 0 24px;
    overflow: visible;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .s7-method-label {
    font-size: 20px;
    margin-bottom: 0;
    padding: 8px 12px;
    height: 60px;
    display: flex;
    align-items: center;
    border-radius: 12px 0 12px 0;
    background: #75B1FF;
    color: #fff;
    align-self: flex-start;
  }
  .s7-method-body {
    font-size: 15px;
    padding: 0 12px;
  }
  .s7-method-body br { display: none; }
  .s7-method-right {
    width: 100%;
    position: relative;
  }
  .s7-method-steps {
    padding-left: 24px;
    gap: 12px;
    position: relative;
  }
  .s7-method-steps-arrow {
    display: block;
    position: absolute;
    left: 12px;
    top: 0;
    width: 62px;
    height: 100%;
    z-index: 0;
    object-fit: fill;
  }
  .s7-method-step {
    flex-direction: row;
    gap: 0;
    align-items: center;
    justify-content: flex-start;
    padding-right: 0;
    position: relative;
    z-index: 1;
  }
  .s7-method-step-text {
    background: #fff;
    border-radius: 1000px;
    padding: 8px 20px;
    display: flex;
    gap: 6px;
    align-items: center;
    width: 200px;
    flex-shrink: 0;
    margin-right: -40px;
    z-index: 2;
    white-space: nowrap;
  }
  .s7-method-step-num {
    font-size: 16px;
    background: var(--gradient-tear-vivid);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  .s7-method-step-title { font-size: 16px; color: #212121; }
  .s7-method-step-sub { font-size: 14px; color: #212121; }
  .s7-method-step-image {
    width: 200px;
    height: 128px;
    flex-shrink: 0;
    border-radius: 1000px;
    z-index: 1;
    margin-left: -20px;
  }
  .s7-method-note {
    padding: 8px 12px;
    margin-top: 24px;
    background: #EAF4FF;
    border-radius: 12px;
  }
  .s7-method-note-title {
    font-size: 18px;
    text-decoration: underline;
  }
  .s7-method-note-body {
    font-size: 15px;
  }
  .s7-method-note-body br { display: none; }

  /* ===== Method Visual ===== */
  .s7-method-visual-section {
    padding: 44px 0;
    margin-top: 44px;
  }
  .s7-method-visual-section .s7-en-label-white {
    color: rgba(255,255,255,0.15) !important;
    -webkit-text-fill-color: rgba(255,255,255,0.15) !important;
    opacity: 1 !important;
  }
  .s7-method-visual-inner {
    padding: 0 12px;
  }
  .s7-method-visual-content {
    flex-direction: column;
    gap: 0;
    margin-top: -20px;
  }
  .s7-method-visual-left {
    width: 100%;
  }
  .s7-method-visual-img-main {
    width: 100%;
    height: auto;
    border-radius: 12px;
  }
  .s7-method-visual-right {
    width: 100%;
    position: relative;
    padding-left: 16px;
  }
  .s7-method-visual-steps {
    gap: 16px;
    position: relative;
    z-index: 1;
    padding: 16px 0;
  }
  .s7-method-visual-steps-arrow {
    display: block;
    position: absolute;
    left: -16px;
    top: 8px;
    width: 80px;
    height: calc(100% + 16px);
    z-index: 0;
    object-fit: fill;
  }
  .s7-method-visual-step {
    flex-direction: column;
    gap: 8px;
    background: rgba(255,255,255,0.9);
    border-radius: 12px;
    overflow: hidden;
  }
  .s7-method-visual-step-header {
    padding: 8px 12px;
  }
  .s7-method-visual-step-body {
    padding: 12px;
  }
  .s7-method-visual-step-body p { font-size: 13px; }

  /* ===== Article ===== */
  .s7-article-content {
    flex-direction: column;
    gap: 24px;
  }
  .s7-article-left {
    width: 100%;
    background: rgba(255,255,255,0.08);
    border-radius: 12px;
    padding: 24px 16px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    gap: 32px;
  }
  .s7-article-text-block {
    display: flex;
    flex-direction: column;
    gap: 20px;
  }
  .s7-article-heading {
    font-size: 20px;
  }
  .s7-article-body {
    font-size: 15px;
    color: #666;
  }
  .s7-article-body br { display: none; }
  .s7-article-quote {
    background: #EAF4FF;
    border-radius: 12px;
    padding: 8px 12px;
  }
  .s7-article-quote p {
    font-size: 15px;
    color: #333;
  }
  .s7-article-right {
    width: 100%;
    position: relative;
  }
  .s7-article-photo {
    width: 100%;
    height: 247px;
    object-fit: cover;
    border-radius: 12px;
  }
  .s7-article-journals {
    position: absolute;
    right: 8px;
    bottom: 8px;
  }
  .s7-article-journals img {
    height: 116px;
    width: auto;
  }
  .s7-article-refs {
    margin-top: 12px;
  }
  .s7-article-ref {
    font-size: 10px;
    line-height: 1.8;
    color: #666;
  }

}