:root {
      --gold: #d29c09;
      --gold-light: #e3b552;
      --gold-pale: rgba(210,156,9,0.12);
      --dark: #1a1a1a;
      --dark-2: #111111;
      --text: #444444;
      --text-light: #777777;
      --white: #ffffff;
      --bg-gray: #f8f8f5;
      --max-w: 1200px;
      --section-py: 100px;
      --radius: 8px;
      --shadow: 0 4px 24px rgba(0,0,0,0.08);
      --transition: 0.3s ease;
    }

    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      font-family: 'Noto Sans JP', sans-serif;
      color: var(--text);
      line-height: 1.75;
      background: var(--white);
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: inherit; text-decoration: none; }
.fade-up {
      opacity: 0;
      transform: translateY(40px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .fade-up.visible { opacity: 1; transform: translateY(0); }

    .fade-left {
      opacity: 0;
      transform: translateX(-40px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .fade-left.visible { opacity: 1; transform: translateX(0); }

    .fade-right {
      opacity: 0;
      transform: translateX(40px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .fade-right.visible { opacity: 1; transform: translateX(0); }

    .delay-1 { transition-delay: 0.1s; }
    .delay-2 { transition-delay: 0.2s; }
    .delay-3 { transition-delay: 0.3s; }
    .delay-4 { transition-delay: 0.4s; }
.section {
      padding: var(--section-py) 20px;
    }
    .section--gray {
      background: var(--bg-gray);
    }
    .inner {
      max-width: var(--max-w);
      margin: 0 auto;
    }
    .section-label {
      font-family: 'Noto Sans JP', sans-serif;
      font-size: 11px;
      letter-spacing: 0.28em;
      text-transform: uppercase;
      color: var(--text-light);
      margin-bottom: 12px;
    }
    .section-title {
      font-size: clamp(28px, 3vw, 42px);
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 20px;
      color: var(--dark);
    }
    .section--dark .section-title { color: var(--white); }
    .section-desc {
      font-size: 16px;
      color: var(--text-light);
      max-width: 800px;
      line-height: 1.9;
      margin: 0 auto;
      text-align: center;
    }
    .section--dark .section-desc { color: rgba(255,255,255,0.7); }

#hero {
      position: relative;
      width: 100%;
      height: 100vh;
      min-height: 600px;
      overflow: hidden;
      margin-top: 0;
    }
    .hero-slides {
      position: absolute;
      inset: 0;
    }
    .hero-slide {
      position: absolute;
      inset: 0;
      opacity: 0;
      transition: opacity 1.2s ease;
    }
    .hero-slide.active { opacity: 1; }
    .hero-slide img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      object-position: center;
    }
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(to right, rgba(0,0,0,0.45) 0%, rgba(0,0,0,0.32) 40%, rgba(0,0,0,0.28) 70%, rgba(0,0,0,0.32) 100%);
    }

    .hero-wm-cover {
      position: absolute;
      inset: 0;
      background: radial-gradient(ellipse 80% 60% at 65% 50%, rgba(0,0,0,0.18) 0%, transparent 100%);
      pointer-events: none;
    }
    .hero-content {
      position: absolute;
      inset: 0;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding: 0 40px;
      padding-top: 60px;
    }
    .hero-title {
      font-size: clamp(30px, 4.2vw, 56px);
      font-weight: 700;
      color: var(--white);
      line-height: 1.4;
      margin-bottom: 24px;
      max-width: none;
    }
    .hero-title span {
      color: #ffffff;
    }
    .hero-subtitle {
      font-size: clamp(13px, 1.4vw, 17px);
      color: rgba(255,255,255,0.85);
      margin-bottom: 48px;
      white-space: nowrap;
      line-height: 1.9;
    }
    .hero-btns {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      justify-content: center;
    }
    .btn-hero {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 700;
      padding: 16px 80px;
      border-radius: 4px;
      transition: all var(--transition);
    }
    .btn-hero--primary {
      background: linear-gradient(135deg, #003fab 0%, #2b7fff 100%);
      color: #ffffff;
    }
    .btn-hero--primary:hover {
      background: linear-gradient(135deg, #002d8a 0%, #1a6be0 100%);
      transform: translateY(-2px);
    }

    .hero-dots {
      position: absolute;
      bottom: 40px;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      gap: 8px;
    }
    .hero-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: rgba(255,255,255,0.4);
      cursor: pointer;
      transition: all var(--transition);
      border: none;
    }
    .hero-dot.active {
      background: #ffffff;
      width: 24px;
      border-radius: 4px;
    }

    .hero-banner {
      position: absolute;
      bottom: 32px;
      right: 40px;
      width: 360px;
      background: rgba(255,255,255,0.85);
      border-radius: 6px;
      box-shadow: 0 4px 24px rgba(0,0,0,0.22);
      overflow: hidden;
      z-index: 10;
      backdrop-filter: blur(4px);
    }
    .hero-banner-link {
      display: flex;
      align-items: stretch;
      text-decoration: none;
      transition: background var(--transition);
    }
    .hero-banner-link:hover { background: #fff; }
    .hero-banner-body {
      flex: 1;
      padding: 14px 16px;
    }
    .hero-banner-cat {
      display: inline-block;
      font-size: 10px;
      font-weight: 700;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      color: #003fab;
      margin-bottom: 7px;
    }
    .hero-banner-title {
      font-size: 12.5px;
      font-weight: 600;
      line-height: 1.55;
      color: var(--dark);
    }
    .hero-banner-thumb {
      width: 160px;
      flex-shrink: 0;
      align-self: stretch;
      overflow: hidden;
      padding: 8px 12px 8px 0;
    }
    .hero-banner-thumb img {
      width: 100%;
      height: 100%;
      object-fit: contain;
      display: block;
      border-radius: 4px;
    }
#news {
      background: var(--white);
      padding: 56px 20px;
    }
    .news-inner {
      max-width: var(--max-w);
      margin: 0 auto;
    }
    .news-inner-header {
      display: flex;
      align-items: baseline;
      justify-content: space-between;
      margin-bottom: 28px;
    }
    .news-inner-header__title {
      font-family: 'Fjalla One', sans-serif;
      font-size: 36px;
      color: var(--dark);
      line-height: 1;
    }
    .news-all-link {
      font-size: 12px;
      font-weight: 700;
      color: #003fab;
      display: flex;
      align-items: center;
      gap: 6px;
      text-decoration: none;
      transition: gap var(--transition);
    }
    .news-all-link:hover { gap: 10px; }
    .news-cards {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .news-card {
      background: var(--white);
      border-radius: var(--radius);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      text-decoration: none;
      color: inherit;
      transition: box-shadow var(--transition), transform var(--transition);
      border: 1px solid rgba(0,0,0,0.08);
    }
    .news-card:hover {
      box-shadow: 0 6px 24px rgba(0,0,0,0.09);
      transform: translateY(-3px);
    }
    .news-card__img {
      width: 100%;
      aspect-ratio: 16/9;
      background: #e8e8e8;
      display: block;
      object-fit: cover;
    }
    .news-card__body {
      padding: 20px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      flex: 1;
    }
    .news-card__meta {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .news-card__date {
      font-size: 11px;
      color: var(--text-light);
      font-family: 'Noto Sans JP', sans-serif;
      letter-spacing: 0.05em;
    }
    .news-card__cat {
      font-size: 10px;
      font-weight: 700;
      color: var(--text-light);
      background: #f0f0f0;
      padding: 1px 8px;
    }
    .news-card__title {
      font-size: 14px;
      font-weight: 600;
      color: var(--dark);
      line-height: 1.65;
      flex: 1;
    }
#feature {
      padding: var(--section-py) 20px;
    }
    .feature-inner {
      max-width: var(--max-w);
      margin: 0 auto;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 80px;
      align-items: center;
    }
    .feature-title {
      font-size: clamp(26px, 3vw, 40px);
      font-weight: 700;
      line-height: 1.3;
      color: var(--dark);
      margin-bottom: 24px;
    }
    .feature-text {
      font-size: 15px;
      color: var(--text-light);
      line-height: 2;
      margin-bottom: 36px;
    }
    .feature-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 700;
      color: #003fab;
      border-bottom: 1px solid #003fab;
      padding-bottom: 2px;
      transition: gap var(--transition);
    }
    .feature-link:hover { gap: 14px; }
    .feature-image {
      border-radius: 12px;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .feature-image img {
      width: 100%;
      height: auto;
      display: block;
      border-radius: 12px;
    }
#achievements {
      padding: 0;
      background: var(--white);
      overflow: hidden;
      border-top: 1px solid rgba(0,0,0,0.06);
      border-bottom: 1px solid rgba(0,0,0,0.06);
    }
    .achievements-inner {
      max-width: var(--max-w);
      margin: 0 auto;
      display: grid;
      grid-template-columns: 240px 1fr;
      min-height: 200px;
    }
    .achievements-label-box {
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      text-align: center;
      padding: 28px 32px;
      border-right: 1px solid rgba(0,0,0,0.06);
    }
    .achievements-num {
      font-family: 'Fjalla One', sans-serif;
      font-size: 36px;
      color: var(--dark);
      line-height: 1;
      margin-bottom: 4px;
      display: flex;
      align-items: baseline;
      gap: 1px;
    }
    .achievements-num__main {
      font-size: 1.2em;
    }
    .achievements-num__small {
      font-size: 0.65em;
    }
    .achievements-num-label {
      font-size: 22px;
      font-weight: 700;
      color: var(--dark);
      letter-spacing: 0.05em;
    }
    .logo-slider-wrap {
      overflow: hidden;
      mask-image: linear-gradient(to right, transparent 0%, black 6%, black 94%, transparent 100%);
      display: flex;
      flex-direction: column;
      justify-content: center;
      gap: 0;
      padding: 16px 0;
    }
    .logo-slider-row {
      height: 200px;
      background-image: url('https://www.skillupai.com/assets/images/202608/logo-area.png');
      background-repeat: repeat-x;
      background-size: auto 184px;
      background-position: 0 center;
    }
    .logo-slider-row:nth-child(1) { animation: logoScroll 35s linear infinite; }
    .logo-slider-row:nth-child(2) { animation: logoScrollReverse 35s linear infinite; }
    @keyframes logoScroll {
      from { background-position-x: 0; }
      to { background-position-x: -2000px; }
    }
    @keyframes logoScrollReverse {
      from { background-position-x: 0; }
      to { background-position-x: 2000px; }
    }
#services {
      padding: var(--section-py) 20px var(--section-py);
      background: var(--white);
    }

    .sv-bg {
      position: absolute;
      inset: 0;
      background-size: cover;
      background-position: center;
      opacity: 0;
      transition: opacity 0.65s ease;
    }
    .sv-bg.active { opacity: 1; }
    .sv-title.active .sv-title__num { color: var(--gold-light); }
    .sv-title.active .sv-title__dot { opacity: 1; }
    .sv-title.active .sv-title__text,
    .sv-title:hover .sv-title__text { color: var(--white); }
    .sv-title.active .sv-title__text { font-size: clamp(26px, 3.2vw, 44px); }
    .sv-title.active .sv-title__desc {
      color: rgba(255,255,255,0.65);
      max-height: 60px;
      margin-top: 6px;
    }
    .sv-title.active .sv-title__arrow { opacity: 1; }
#services {
      padding: var(--section-py) 20px;
      background: linear-gradient(135deg, #f0ead6 0%, #f8f5ec 45%, #eef3f5 100%);
    }
    #training {
      padding: var(--section-py) 20px;
      background: var(--white);
    }
    #retention {
      padding: var(--section-py) 20px;
      background: linear-gradient(135deg, #f0ead6 0%, #f8f5ec 45%, #eef3f5 100%);
    }
    .training-header {
      max-width: var(--max-w);
      margin: 0 auto 56px;
      text-align: center;
    }

    .training-group {
      max-width: var(--max-w);
      margin: 0 auto;
    }
    .training-group + .training-group {
      margin-top: 64px;
    }
    .training-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .training-card {
      background: var(--white);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      transition: transform var(--transition), box-shadow var(--transition);
      display: flex;
      flex-direction: column;
      text-decoration: none;
      color: inherit;
    }
    .training-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 12px 40px rgba(0,0,0,0.12);
    }
    .training-card__img {
      width: 100%;
      aspect-ratio: 16/10;
      object-fit: cover;
      display: block;
    }
    .training-card__body {
      padding: 20px;
      flex: 1;
    }
    .training-card__title {
      font-size: 15px;
      font-weight: 700;
      color: var(--dark);
      line-height: 1.4;
      margin-bottom: 8px;
    }
    .training-card__text {
      font-size: 13px;
      color: var(--dark);
      line-height: 1.8;
    }
    .training-card--dark .training-card__title { color: var(--white); }
    .training-card--dark .training-card__text { color: rgba(255,255,255,0.6); }
#why {
      padding: var(--section-py) 20px;
      background: linear-gradient(135deg, #003fab 0%, #0055d4 55%, #1a7fff 100%);
    }
    .why-header {
      max-width: var(--max-w);
      margin: 0 auto 72px;
      text-align: center;
    }
    .why-header .section-label {
      display: block;
      text-align: center;
      margin-bottom: 16px;
    }
    .why-header .section-title {
      color: var(--white);
    }

    .why-metrics {
      max-width: var(--max-w);
      margin: 0 auto 64px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1px;
      background: rgba(255,255,255,0.1);
    }
    .why-metric {
      padding: 40px 24px;
      background: rgba(0,0,0,0.2);
      text-align: center;
    }
    .why-metric__num {
      font-family: 'Fjalla One', sans-serif;
      font-size: clamp(32px, 3.5vw, 52px);
      background: linear-gradient(135deg, #fff0a0 0%, #e3b552 50%, #a87200 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      line-height: 1;
      margin-bottom: 8px;
    }
    .why-metric__label {
      font-size: 13px;
      color: rgba(255,255,255,0.6);
      line-height: 1.5;
    }

    .why-certs {
      max-width: var(--max-w);
      margin: 0 auto 56px;
      display: flex;
      gap: 16px;
      justify-content: center;
      flex-wrap: wrap;
    }
    .why-cert {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: clamp(18px, 1.8vw, 24px);
      font-weight: 700;
      background: rgba(255,255,255,0.08);
      border: 1px solid rgba(255,255,255,0.15);
      border-radius: 12px;
      padding: 32px 40px;
      color: rgba(255,255,255,0.95);
      line-height: 1.6;
      flex: 1;
      min-width: 300px;
      justify-content: center;
      text-align: center;
    }

    .why-industries {
      max-width: var(--max-w);
      margin: 0 auto;
      text-align: center;
    }
    .why-industries__label {
      font-size: 11px;
      letter-spacing: 0.12em;
      color: rgba(255,255,255,0.45);
      text-transform: uppercase;
      margin-bottom: 20px;
    }
    .why-industry-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
    }
    .why-industry-tag {
      font-size: 13px;
      color: rgba(255,255,255,0.75);
      background: rgba(255,255,255,0.07);
      border: 1px solid rgba(255,255,255,0.12);
      border-radius: 100px;
      padding: 6px 16px;
    }
#cta {
      padding: var(--section-py) 20px;
      background: var(--white);
    }
    .cta-inner {
      max-width: var(--max-w);
      margin: 0 auto;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
    }
    .cta-card {
      position: relative;
      border-radius: 12px;
      overflow: hidden;
      min-height: 280px;
      display: flex;
      align-items: flex-end;
    }
    .cta-card__bg {
      position: absolute;
      inset: 0;
    }
    .cta-card__bg img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .cta-card__overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.2) 60%, transparent 100%);
    }
    .cta-card__body {
      position: relative;
      padding: 36px;
      width: 100%;
    }
    .cta-card__label {
      font-size: 11px;
      letter-spacing: 0.15em;
      text-transform: uppercase;
      color: var(--gold-light);
      margin-bottom: 10px;
    }
    .cta-card__title {
      font-size: 22px;
      font-weight: 700;
      color: var(--white);
      margin-bottom: 20px;
    }
    .btn-cta {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 700;
      padding: 12px 28px;
      border-radius: 4px;
      background: var(--white);
      color: var(--dark);
      transition: all var(--transition);
    }
    .btn-cta:hover {
      background: var(--gold);
      color: var(--white);
    }
#success {
      padding: var(--section-py) 20px;
      background: var(--bg-gray);
    }
    .success-header {
      max-width: var(--max-w);
      margin: 0 auto 56px;
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
    }
    .success-link-all {
      font-size: 13px;
      font-weight: 700;
      color: #003fab;
      display: flex;
      align-items: center;
      gap: 6px;
      border-bottom: 1px solid #003fab;
      padding-bottom: 2px;
      transition: gap var(--transition);
    }
    .success-link-all:hover { gap: 12px; }
    .success-grid {
      max-width: var(--max-w);
      margin: 0 auto;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .success-card {
      background: var(--white);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      transition: transform var(--transition);
    }
    .success-card:hover { transform: translateY(-4px); }
    .success-card__img {
      width: 100%;
      aspect-ratio: 16/9;
      object-fit: cover;
    }
    .success-card__body {
      padding: 24px;
      text-align: center;
    }
    .success-card__logo {
      height: 50px;
      width: auto;
      margin-top: 8px;
      margin-bottom: 20px;
    }
    .success-card__company {
      font-size: 16px;
      color: var(--dark);
      font-weight: 700;
      border-top: 1px solid #e5e7eb;
      padding-top: 16px;
      margin-bottom: 10px;
    }
    .success-card__title {
      font-size: 12px;
      font-weight: 600;
      color: var(--text-light);
      line-height: 1.5;
    }
#events {
      padding: var(--section-py) 20px;
      background: var(--white);
    }
    .events-header {
      max-width: var(--max-w);
      margin: 0 auto 48px;
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
    }

    .seminar-grid {
      max-width: var(--max-w);
      margin: 0 auto;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .seminar-card {
      background: var(--white);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      transition: transform var(--transition), box-shadow var(--transition);
      display: flex;
      flex-direction: column;
      text-decoration: none;
      color: inherit;
    }
    .seminar-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 12px 40px rgba(0,0,0,0.12);
    }
    .seminar-card__img {
      width: 100%;
      aspect-ratio: 1920 / 940;
      object-fit: cover;
      display: block;
    }
    .seminar-card__body {
      padding: 20px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .seminar-card__status {
      display: inline-block;
      font-size: 11px;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: 2px;
      margin-bottom: 12px;
      align-self: flex-start;
    }
    .seminar-card__status--open {
      background: #003fab;
      color: #ffffff;
    }
    .seminar-card__status--closed {
      background: rgba(0,0,0,0.06);
      color: var(--text-light);
    }
    .seminar-card__title {
      font-size: 14px;
      font-weight: 700;
      color: var(--dark);
      line-height: 1.55;
      margin-bottom: 14px;
    }
    .seminar-card__meta {
      margin-top: auto;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .seminar-card__meta-item {
      display: flex;
      gap: 8px;
      font-size: 12px;
      color: var(--text);
    }
    .seminar-card__meta-label {
      color: var(--text-light);
      flex-shrink: 0;
      min-width: 56px;
    }
#personal {
      padding: var(--section-py) 20px;
    }
    .personal-banner {
      display: block;
      max-width: var(--max-w);
      margin: 0 auto;
      border-radius: var(--radius);
      overflow: hidden;
    }
    .personal-banner img {
      width: 100%;
      height: auto;
      display: block;
    }

@media (max-width: 1024px) {
      .feature-inner { grid-template-columns: 1fr; gap: 48px; }
      .services-tabs { width: 320px; }
      .why-metrics { grid-template-columns: repeat(2, 1fr); }
      .training-grid { grid-template-columns: repeat(2, 1fr); }
      .hero-dots { display: none; }
    }

    @media (max-width: 768px) {
      :root { --section-py: 64px; }
      .header-nav { display: none; }
      .header-hamburger { display: flex; position: fixed; top: 10px; right: 16px; z-index: 1100; }

      .news-cards { grid-template-columns: 1fr; }
      .news-card__meta { flex-direction: column; align-items: flex-start; gap: 3px; }

      .achievements-inner { grid-template-columns: 1fr; }
      .achievements-label-box { border-right: none; border-bottom: 1px solid rgba(0,0,0,0.06); padding: 20px 24px; }

      #retention .training-card { grid-column: auto !important; }
      .hero-content { padding: 0 24px; padding-top: 60px; }
      .hero-subtitle { white-space: normal; }
      .hero-dots { display: none; }
      .hero-banner { right: 50%; transform: translateX(50%); width: calc(100% - 32px); max-width: 360px; }
      .cta-inner { grid-template-columns: 1fr; }
      .success-grid { grid-template-columns: 1fr; }
      .training-grid { grid-template-columns: 1fr; }
      .success-header, .events-header { flex-direction: column; align-items: flex-start; gap: 16px; }
      .why-metrics { grid-template-columns: repeat(2, 1fr); }
      .seminar-grid { grid-template-columns: 1fr; }
    }