:root {
      --bg-dark: #0a0e1a;
      --bg-dark2: #0d1220;
      --bg-card: #111827;
      --bg-card2: #161d2e;
      --accent-cyan: #00d4ff;
      --accent-teal: #00b8a0;
      --accent-green: #39e6b0;
      --text-primary: #f0f4ff;
      --text-secondary: #9ea5af;
      --text-muted: #4a5a70;
      --border: rgba(0,212,255,0.15);
      --border-subtle: rgba(255,255,255,0.07);
      --gradient-hero: linear-gradient(135deg, rgba(10,14,26,0.9) 0%, rgba(13,26,48,0.78) 50%, rgba(9,21,32,0.92) 100%);
      --gradient-accent: linear-gradient(90deg, #00d4ff, #00b8a0);
      --gradient-card: linear-gradient(145deg, #111827, #0d1525);
    }

    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    html { scroll-behavior: smooth; }

    body {
      font-family: 'Noto Sans', sans-serif;
      background: var(--bg-dark);
      color: var(--text-primary);
      line-height: 1.7;
      overflow-x: hidden;
    }

    p {
      font-family: 'Noto Sans', sans-serif;
    }

    h1 { font-size: 50px; }
    h2 { font-size: 32px; }
    h3 { font-size: 28px; }

    /* ─── HEADER ─── */
    header {
      position: fixed;
      top: 0; left: 0; right: 0;
      z-index: 100;
      background: rgba(10,14,26,0.92);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-subtle);
      padding: 0 40px;
      height: 64px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .header-logo img {
      height: 28px;
      display: block;
    }

    nav {
      position: absolute;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      align-items: center;
      gap: 32px;
    }

    nav a {
      color: var(--text-secondary);
      text-decoration: none;
      font-size: 16px;
      font-weight: 500;
      letter-spacing: 0.03em;
      transition: color 0.2s;
    }

    nav a:hover { color: var(--accent-cyan); }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn-outline-sm,
    .header-contact-link {
      padding: 8px 20px;
      border: 1px solid var(--border);
      color: var(--text-secondary);
      background: transparent;
      border-radius: 6px;
      font-size: 14px;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.2s;
      font-family: inherit;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
    }

    .btn-outline-sm:hover,
    .header-contact-link:hover {
      border-color: var(--accent-cyan);
      color: var(--accent-cyan);
    }

    .btn-outline-sm.header-login-link {
      padding: 8px 0;
      border: none;
      border-radius: 0;
      background: transparent;
    }

    .btn-outline-sm.header-login-link:hover {
      border: none;
      color: var(--accent-cyan);
    }

    .header-login-link + .btn-primary-sm {
      margin-left: 4px;
    }

    .btn-primary-sm {
      padding: 8px 20px;
      background: var(--gradient-accent);
      color: var(--bg-dark);
      border: none;
      border-radius: 6px;
      font-size: 14px;
      font-weight: 700;
      cursor: pointer;
      transition: opacity 0.2s;
      font-family: inherit;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
    }

    .btn-primary-sm:hover { opacity: 0.85; }

    /* ─── HERO ─── */
    .hero {
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding: 120px 40px 80px;
      background: var(--gradient-hero);
      position: relative;
      overflow: hidden;
      isolation: isolate;
    }

    .hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: url("image/bgimg_top.svg") center / contain no-repeat;
      opacity: 0.16;
      pointer-events: none;
      z-index: 0;
    }

    .hero::after {
      content: '';
      position: absolute;
      inset: 0;
      background:
        radial-gradient(ellipse at 50% -10%, rgba(0,212,255,0.07) 0%, transparent 42%),
        radial-gradient(ellipse at calc(100% + 100px) calc(100% + 100px), rgba(0,184,160,0.06) 0%, transparent 20%);
      pointer-events: none;
      z-index: 0;
    }

    .hero-badge {
      display: inline-flex;
      align-items: baseline;
      justify-content: center;
      flex-wrap: wrap;
      margin-bottom: 24px;
      color: var(--text-primary);
      font-size: clamp(18px, 2vw, 24px);
      font-weight: 800;
      line-height: 1.35;
      letter-spacing: 0.02em;
      position: relative;
      z-index: 1;
      text-shadow: 0 0 24px rgba(0,212,255,0.16);
      animation: fadeUp 0.8s ease both;
    }

    .hero-badge-reading {
      color: var(--text-secondary);
      font-size: 0.7em;
      font-weight: 500;
      opacity: 0.78;
    }

    .hero-lead {
      display: inline-block;
      color: var(--text-primary);
      font-size: clamp(18px, 1.6vw, 36px);
      font-weight: 800;
      line-height: 1.6;
      margin: 0 auto 16px;
      max-width: 720px;
      padding: 0 0.28em 0.1em;
      background: linear-gradient(transparent 58%, rgba(0,212,255,0.22) 58%, rgba(0,184,160,0.20) 100%);
      position: relative;
      z-index: 1;
      text-shadow: 0 0 18px rgba(0,212,255,0.12);
      animation: fadeUp 0.8s 0.05s ease both;
    }

    .hero-lead::after {
      content: '';
      position: absolute;
      left: 0.28em;
      right: 0.28em;
      bottom: -3px;
      height: 2px;
      border-radius: 999px;
      background: var(--gradient-accent);
      opacity: 0.75;
      box-shadow: 0 0 16px rgba(0,212,255,0.22);
    }

    .hero h1 {
      font-family: 'Noto Sans', sans-serif;
      font-size: 50px;
      font-weight: 800;
      line-height: 1.15;
      letter-spacing: -0.01em;
      margin-bottom: 0px;
      padding: 12px 24px;
      background: radial-gradient(ellipse at center, rgb(32, 116, 131,0.2) 0%, rgba(0, 184, 160, 0.08) 38%, rgba(10, 14, 26, 0) 74%);
      border-radius: 24px;
      position: relative;
      z-index: 1;
      animation: fadeUp 0.8s 0.1s ease both;
    }

    .hero h1 .gradient-text {
      background: var(--gradient-accent);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero-sub {
      font-size: clamp(16px, 2vw, 18px);
      color: var(--text-secondary);
      max-width: 800px;
      margin: 20px auto 40px;
      position: relative;
      z-index: 1;
      animation: fadeUp 0.8s 0.2s ease both;
    }

    .hero-cta {
      display: flex;
      gap: 16px;
      justify-content: center;
      flex-wrap: wrap;
      position: relative;
      z-index: 1;
      animation: fadeUp 0.8s 0.3s ease both;
    }

    .btn-hero {
      padding: 16px 40px;
      background: var(--gradient-accent);
      color: var(--bg-dark);
      font-family: 'Noto Sans', sans-serif;
      font-size: 16px;
      font-weight: 700;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: transform 0.2s, box-shadow 0.2s;
      box-shadow: 0 0 30px rgba(0,212,255,0.3);
    }

    .btn-hero:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 40px rgba(0,212,255,0.45);
    }

    .btn-hero-ghost {
      padding: 16px 36px;
      background: transparent;
      color: var(--text-primary);
      font-family: 'Noto Sans', sans-serif;
      font-size: 18px;
      font-weight: 500;
      border: 1px solid var(--border);
      border-radius: 8px;
      cursor: pointer;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: all 0.2s;
    }

    .btn-hero-ghost:hover {
      border-color: var(--accent-cyan);
      color: var(--accent-cyan);
    }

    /* ─── SECTION COMMON ─── */
    section {
      padding: 100px 40px;
    }

    .container {
      max-width: 1100px;
      margin: 0 auto;
    }

    .section-label {
      font-size: 14px;
      font-weight: 700;
      letter-spacing: 0.15em;
      text-transform: uppercase;
      color: var(--accent-cyan);
      margin-bottom: 12px;
    }

    .section-title {
      font-family: 'Noto Sans', sans-serif;
      font-size: 32px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 16px;
    }

    .section-desc {
      color: var(--text-secondary);
      font-size: 16px;
      max-width: 600px;
      line-height: 1.8;
    }

    .section-header {
      text-align: center;
      margin-bottom: 64px;
    }

    .divider {
      width: 48px;
      height: 3px;
      background: var(--gradient-accent);
      border-radius: 2px;
      margin: 20px auto 0;
    }

    /* ─── CLIENTS ─── */
    .clients {
      background: var(--bg-dark2);
      padding: 64px 40px;
      border-top: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
    }

    .clients-label {
      text-align: center;
      font-size: 16px;
      color: var(--text-muted);
      letter-spacing: 0.1em;
      text-transform: uppercase;
      margin-bottom: 36px;
    }

    .clients-grid {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 40px;
      flex-wrap: wrap;
    }

    .client-logo-placeholder {
      width: 160px;
      height: 44px;
      background: rgba(255,255,255,0.04);
      border: 1px solid var(--border-subtle);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .client-logo-placeholder span {
      font-size: 12px;
      color: var(--text-muted);
      letter-spacing: 0.05em;
    }

    /* ─── NECESSITY ─── */
    .necessity {
      background: var(--bg-dark);
    }

    .necessity-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
      margin-top: 0;
    }

    .necessity-card {
      background: var(--gradient-card);
      border: 1px solid var(--border-subtle);
      border-radius: 16px;
      padding: 56px 24px 20px;
      position: relative;
      overflow: hidden;
    }

    .necessity-card::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 2px;
      background: var(--gradient-accent);
      opacity: 0;
      transition: opacity 0.3s;
    }

    .nc-icon {
      width: 48px; height: 48px;
      background: rgba(0,212,255,0.1);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      font-size: 22px;
    }

    .necessity-card img {
      display: block;
      width: 100%;
      height: 110px;
      margin-bottom: 32px;
      object-fit: contain;
      object-position: center;
    }

    .nc-point {
      position: absolute;
      top: 18px;
      left: 22px;
      font-size: 14px;
      font-weight: 700;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--accent-cyan);
    }

    .nc-title {
      font-family: 'Noto Serif', serif;
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 20px;
      color: var(--text-primary);
    }

    .nc-text {
      font-size: 16px;
      color: var(--text-secondary);
      line-height: 1.75;
    }

    .necessity-insight {
      margin-top: 72px;
      padding: 36px 40px;
      background:
        linear-gradient(135deg, rgba(10, 14, 26, 0.94) 0%, rgba(17, 16, 34, 0.94) 52%, rgba(24, 18, 40, 0.94) 100%);
      border: 1px solid rgba(152,16,250,0.10);
      border-radius: 20px;
      position: relative;
      overflow: hidden;
      text-align: center;
      box-shadow:
        inset 0 1px 0 rgba(255,255,255,0.03),
        0 18px 40px rgba(0,0,0,0.2);
    }

    .necessity-insight::before {
      content: '';
      position: absolute;
      inset: 0;
      background:
        radial-gradient(ellipse at 50% 40%, rgba(152,16,250,0.10) 0%, rgba(152,16,250,0.04) 34%, transparent 72%),
        linear-gradient(180deg, rgba(152,16,250,0.025) 0%, rgba(152,16,250,0.012) 100%);
      pointer-events: none;
    }

    .necessity-insight > * {
      position: relative;
      z-index: 1;
    }

    .necessity-copy {
      display: block;
      width: fit-content;
      margin: 80px auto 72px;
      padding: 24px 28px 0px;
      position: relative;
      border-radius: 18px;
      color:var(--text-primary);
      font-family: 'Noto Serif', serif;
      font-size: clamp(20px, 2.7vw, 28px);
      font-weight: 700;
      line-height: 1.6;
      letter-spacing: 0.03em;
      text-align: center;
      text-shadow: 0 0 18px rgba(152,16,250,0.10);
    }

    .necessity-copy span {
      display: inline-block;
      padding: 0 16px 8px;
      position: relative;
      color: var(--text-primary);
    }

    .necessity-copy span::after {
      content: '';
      position: absolute;
      left: 16px;
      right: 16px;
      bottom: -8px;
      height: 3px;
      border-radius: 999px;
      background: linear-gradient(90deg, rgba(255,214,122,0) 0%, rgba(244,215,139,0.95) 18%, rgba(255,238,188,1) 50%, rgba(226,184,92,0.95) 82%, rgba(255,214,122,0) 100%);
      box-shadow: 0 0 10px rgba(244,215,139,0.22);
    }

    .necessity-arrow {
      width: 34px;
      height: 22px;
      margin: 8px auto 0;
      position: relative;
      filter: drop-shadow(0 7px 14px rgba(0,0,0,0.2));
    }

    .necessity-arrow::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(248,248,250,0.96) 0%, rgba(195,198,205,0.94) 52%, rgba(132,138,148,0.92) 100%);
      clip-path: polygon(50% 100%, 0 0, 100% 0);
      border-radius: 2px;
      box-shadow:
        inset 0 1px 0 rgba(255,255,255,0.45),
        0 1px 0 rgba(255,255,255,0.08);
    }

    .necessity-insight h3 {
      font-family: 'Noto Serif', serif;
      font-size: 28px;
      font-weight: 800;
      line-height: 1.45;
      margin-bottom: 24px;
    }

    .necessity-insight p {
      max-width: 760px;
      margin: 0 auto;
      color: var(--text-secondary);
      font-size: 18px;
      line-height: 2;
    }

    .marker-text {
      display: inline;
      padding: 0 0.18em;
      color: #f8fbff;
      background: linear-gradient(transparent 0%, rgba(211, 181, 255, 0.48) 100%);
      border-radius: 0.1em;
      text-shadow: 0 1px 2px rgba(0,0,0,0.28);
      box-decoration-break: clone;
      -webkit-box-decoration-break: clone;
    }

    .image-placeholder {
      display: flex;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 8px;
      color: var(--text-muted);
      font-size: 12px;
    }

    .image-placeholder svg {
      opacity: 0.4;
    }

    /* ─── DARK SECTION (マーケティングの要) ─── */
    .dark-feature {
      background: linear-gradient(135deg, #06101e, #0a1628, #071420);
      border-top: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
    }

    .dark-feature .container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 80px;
      align-items: center;
    }

    .df-text .section-desc { max-width: 100%; }

    .df-tag-row {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      margin-top: 28px;
    }

    .df-tag {
      padding: 8px 16px;
      border-radius: 40px;
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.03em;
    }

    .df-tag.hot {
      background: rgba(255,80,80,0.15);
      border: 1px solid rgba(255,80,80,0.3);
      color: #ff6b6b;
    }

    .df-tag.cool {
      background: rgba(0,212,255,0.1);
      border: 1px solid rgba(0,212,255,0.25);
      color: var(--accent-cyan);
    }

    .df-image {
      aspect-ratio: 4/3;
    }

    /* ─── ISSUES ─── */
    .issues { background: var(--bg-dark2); }

    .issues-layout {
      display: block;
    }

    .issues-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
      max-width: 760px;
      margin: 0 auto;
    }

    .issue-item {
      display: flex;
      gap: 20px;
      align-items: stretch;
      background: var(--gradient-card);
      border: 1px solid var(--border-subtle);
      border-radius: 14px;
      padding: 24px 28px;
      transition: border-color 0.3s;
    }

    .issue-visual {
      width: 128px;
      min-width: 128px;
      padding: 20px;
      background: rgba(255,255,255,0.08);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

    .issue-illustration {
      width: 100%;
      max-width: 84px;
      max-height: 84px;
      object-fit: contain;
      display: block;
    }

    .issue-content {
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .issue-title {
      font-family: 'Noto Serif', serif;
      position: relative;
      display: inline-flex;
      align-items: center;
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--accent-cyan);
      line-height: 1.5;
      padding-bottom: 6px;
      border-bottom: 2px solid rgba(0,212,255,0.45);
      letter-spacing: 0.02em;
      text-shadow: 0 0 18px rgba(0,212,255,0.16);
    }

    .issue-text {
      font-size: 16px;
      color: var(--text-secondary);
      line-height: 1.7;
    }

    /* ─── SOLUTION HERO ─── */
    .solution-hero {
      background:
        radial-gradient(circle at 50% 38%, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0.03) 18%, transparent 42%),
        radial-gradient(circle at 50% 50%, rgba(47,214,255,0.08) 0%, transparent 36%),
        linear-gradient(180deg, #10192b 0%, #0b1323 100%);
      text-align: center;
      padding: 104px 40px 112px;
      position: relative;
      overflow: hidden;
      isolation: isolate;
    }

    .solution-hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background:
        linear-gradient(180deg, rgba(8,13,24,0.08) 0%, rgba(8,13,24,0.34) 100%),
        radial-gradient(circle at 50% 44%, rgba(255,255,255,0.06) 0%, transparent 48%);
      z-index: 0;
    }

    .solution-logo-row {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 12px;
      margin-bottom: 24px;
      position: relative;
      z-index: 2;
    }

    .solution-logo-row img {
      height: 34px;
      opacity: 0.92;
    }

    .solution-hero h2 {
      font-family: 'Noto Sans', sans-serif;
      font-size: 50px;
      font-weight: 800;
      line-height: 1.18;
      letter-spacing: -0.03em;
      margin-bottom: 0;
      position: relative;
      z-index: 2;
      text-shadow: 0 8px 26px rgba(0,0,0,0.22);
    }

    .solution-hero h2 em {
      font-style: normal;
      background: linear-gradient(90deg, #1ed9ff, #5ce7f0);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .solution-cloud {
      position: absolute;
      inset: 0;
      z-index: 1;
      pointer-events: none;
    }

    .solution-chip {
      position: absolute;
      color: rgba(198,214,238,0.14);
      font-size: clamp(20px, 2.4vw, 32px);
      font-weight: 700;
      letter-spacing: 0.02em;
      line-height: 1;
      white-space: nowrap;
      text-shadow: none;
    }

    .solution-chip:nth-child(1) { top: 48px; left: 18%; transform: rotate(-5deg); }
    .solution-chip:nth-child(2) { top: 114px; left: 3%; transform: rotate(-12deg); font-size: clamp(28px, 3vw, 48px); }
    .solution-chip:nth-child(3) { top: 216px; left: 22%; transform: rotate(8deg); font-size: clamp(22px, 2.3vw, 34px); }
    .solution-chip:nth-child(4) { bottom: 58px; left: 31%; transform: rotate(-2deg); font-size: clamp(18px, 2vw, 30px); }
    .solution-chip:nth-child(5) { top: 28px; right: 10%; transform: rotate(-9deg); font-size: clamp(24px, 2.6vw, 42px); }
    .solution-chip:nth-child(6) { top: 154px; right: 2%; transform: rotate(2deg); font-size: clamp(30px, 3.2vw, 50px); }
    .solution-chip:nth-child(7) { top: 236px; right: 11%; transform: rotate(-8deg); font-size: clamp(24px, 2.5vw, 38px); }
    .solution-chip:nth-child(8) { bottom: 42px; right: 18%; transform: rotate(14deg); font-size: clamp(22px, 2.4vw, 36px); }

    /* ─── FEATURES ─── */
    .features { background: var(--bg-dark); }

    .features-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }

    .features .func-block {
      grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
      gap: 44px;
    }

    .features-main-image {
      aspect-ratio: 4 / 3;
    }

    .feature-card {
      background: var(--gradient-card);
      border: 1px solid var(--border-subtle);
      border-radius: 16px;
      padding: 32px;
      display: grid;
      grid-template-columns: minmax(0, 1fr) 280px;
      gap: 28px;
      align-items: center;
      transition: border-color 0.3s, transform 0.3s;
    }

    .feature-card:hover {
      border-color: rgba(0,212,255,0.25);
      transform: translateY(-3px);
    }

    .fc-number {
      font-family: 'Noto Sans', sans-serif;
      font-size: 16px;
      font-weight: 700;
      color: var(--accent-cyan);
      letter-spacing: 0.1em;
      margin-bottom: 16px;
    }

    .fc-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .fc-desc {
      font-size: 16px;
      color: var(--text-secondary);
      line-height: 1.8;
    }

    .fc-list {
      margin-top: 24px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .fc-list li {
      font-size: 18px;
      color: #f0f4ff;
      list-style: none;
      position: relative;
      padding-left: 16px;
      line-height: 1.65;
    }

    .fc-list li span {
      color: #00d4ff;
    }

    .fc-list li::before {
      content: '';
      position: absolute;
      top: 0.82em;
      left: 0;
      width: 6px; height: 6px;
      background: #f0f4ff;
      border-radius: 50%;
    }

    .feature-media {
      min-height: 220px;
      border-radius: 16px;
    }

    /* ─── FUNCTIONS ─── */
    .functions { background: var(--bg-dark2); }

    .func-block {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
      padding: 56px 0;
      border-bottom: 1px solid var(--border-subtle);
    }

    .func-block:first-child { padding-top: 0; }
    .func-block:last-child { border-bottom: none; padding-bottom: 0; }
    .func-block.reverse { direction: rtl; }
    .func-block.reverse > * { direction: ltr; }

    .func-label {
      font-size: 14px;
      font-weight: 700;
      letter-spacing: 0.15em;
      text-transform: uppercase;
      color: var(--accent-teal);
      margin-bottom: 12px;
    }

    .func-title {
      font-family: 'Noto Serif', serif;
      font-size: 28px;
      font-weight: 700;
      margin-bottom: 18px;
      line-height: 1.35;
    }

    .func-desc {
      font-size: 16px;
      color: var(--text-secondary);
      line-height: 1.85;
    }

    .func-desc-list {
      margin: 0;
      padding-left: 1.2em;
    }

    .func-desc-list li + li {
      margin-top: 10px;
    }

    .func-desc span {
      color: var(--accent-cyan);
    }

    .func-image {
      aspect-ratio: 4/3;
      border-radius: 16px;
      overflow: hidden;
    }

    .func-image img {
      display: block;
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .func-image img.fit-contain {
      object-fit: contain;
    }

    /* ─── PRICING ─── */
    .pricing {
      background: linear-gradient(180deg, #0a0e1a 0%, #07111f 100%);
    }

    .pricing-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.8fr) minmax(0, 0.8fr);
      gap: 24px;
      align-items: stretch;
    }

    .pricing-card {
      background: var(--gradient-card);
      border: 1px solid var(--border-subtle);
      border-radius: 20px;
      padding: 40px 32px;
      display: flex;
      flex-direction: column;
      position: relative;
      transition: transform 0.3s;
    }

    /* FREE PLAN — FEATURED */
    .pricing-card.featured {
      border-color: var(--accent-cyan);
      box-shadow: 0 0 0 1px rgba(0,212,255,0.2), 0 20px 60px rgba(0,212,255,0.1);
      background: linear-gradient(145deg, #0f1e2e, #091825);
      transform: scale(1.04);
    }

    .pricing-card.featured:hover { transform: scale(1.04) translateY(-4px); }
    .pricing-card:not(.featured):hover { transform: translateY(-4px); }

    .plan-badge {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--gradient-accent);
      color: var(--bg-dark);
      font-size: 12px;
      font-weight: 800;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      padding: 4px 20px;
      border-radius: 40px;
      white-space: nowrap;
    }

    .plan-name {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-secondary);
      letter-spacing: 0.05em;
      text-transform: uppercase;
      text-align: center;
      margin-bottom: 20px;
    }

    .plan-name-free {
      font-size: 24px;
    }

    .plan-price {
      display: flex;
      align-items: baseline;
      justify-content: center;
      gap: 4px;
      margin-bottom: 8px;
    }

    .plan-price .amount {
      font-family: 'Noto Sans', sans-serif;
      font-size: 72px;
      font-weight: 800;
      line-height: 1;
      color: var(--text-primary);
    }

    .plan-price .amount.gradient {
      background: var(--gradient-accent);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .plan-price .currency {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-secondary);
    }

    .plan-price .period {
      font-size: 16px;
      color: var(--text-muted);
      margin-left: 4px;
    }

    .plan-desc {
      font-size: 16px;
      color: var(--text-secondary);
      margin-bottom: 28px;
      line-height: 1.7;
      min-height: 50px;
    }

    .plan-divider {
      height: 1px;
      background: var(--border-subtle);
      margin-bottom: 24px;
    }

    .plan-features {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      flex: 1;
      margin-bottom: 32px;
    }

    .plan-features li {
      font-size: 16px;
      color: var(--text-secondary);
      display: flex;
      align-items: flex-start;
      gap: 10px;
    }

    .plan-features li .check {
      color: var(--accent-green);
      font-size: 16px;
      flex-shrink: 0;
      margin-top: 0;
    }

    .plan-features li.muted .check { color: var(--text-muted); }
    .plan-features li.muted { opacity: 0.5; }

    .btn-plan {
      width: 100%;
      padding: 16px;
      border-radius: 10px;
      font-family: 'Noto Sans', sans-serif;
      font-size: 16px;
      font-weight: 700;
      cursor: pointer;
      text-align: center;
      transition: all 0.2s;
      border: none;
    }

    .btn-plan.primary {
      background: var(--gradient-accent);
      color: var(--bg-dark);
      box-shadow: 0 0 24px rgba(0,212,255,0.3);
    }

    .btn-plan.primary:hover {
      box-shadow: 0 6px 32px rgba(0,212,255,0.5);
      transform: translateY(-1px);
    }

    .btn-plan.disabled {
      background: rgba(255,255,255,0.05);
      color: var(--text-muted);
      cursor: default;
      border: 1px solid var(--border-subtle);
    }

    .coming-soon-tag {
      display: inline-block;
      background: rgba(255,255,255,0.06);
      border: 1px solid var(--border-subtle);
      border-radius: 6px;
      font-size: 12px;
      color: var(--text-muted);
      padding: 4px 12px;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    /* ─── REVIEW / AUDIT ─── */
    .audit {
      background: var(--bg-dark2);
      text-align: center;
    }

    .audit-box {
      background: var(--gradient-card);
      border: 1px solid var(--border-subtle);
      border-radius: 20px;
      padding: 56px 40px;
      max-width: 700px;
      margin: 0 auto;
    }

    .audit-box p {
      color: var(--text-secondary);
      font-size: 16px;
      line-height: 1.9;
      margin-bottom: 32px;
    }

    /* ─── FAQ ─── */
    .faq { background: var(--bg-dark); }

    .faq-list {
      max-width: 820px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 0;
    }

    .faq-item {
      border-bottom: 1px solid var(--border-subtle);
    }

    .faq-question {
      width: 100%;
      padding: 24px 0;
      display: flex;
      align-items: flex-start;
      gap: 16px;
      border: 0;
      background: transparent;
      color: inherit;
      cursor: pointer;
      font: inherit;
      text-align: left;
      transition: color 0.2s;
    }

    .faq-question:hover { color: var(--accent-cyan); }

    .faq-question:focus-visible {
      outline: 2px solid var(--accent-cyan);
      outline-offset: 4px;
    }

    .faq-q-mark {
      min-width: 28px; height: 28px;
      background: rgba(0,212,255,0.1);
      border: 1px solid rgba(0,212,255,0.2);
      border-radius: 7px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      font-weight: 700;
      color: var(--accent-cyan);
      flex-shrink: 0;
    }

    .faq-q-text {
      font-size: 16px;
      font-weight: 600;
      flex: 1;
      padding-top: 4px;
    }

    .faq-arrow {
      font-size: 16px;
      color: var(--text-muted);
      transition: transform 0.3s;
      margin-top: 4px;
    }

    .faq-item.open .faq-arrow { transform: rotate(180deg); }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.3s;
    }

    .faq-item.open .faq-answer {
      max-height: 400px;
      padding-bottom: 24px;
    }

    .faq-answer-inner {
      padding-left: 44px;
      font-size: 16px;
      color: var(--text-secondary);
      line-height: 1.85;
    }

    /* ─── FINAL CTA ─── */
    .final-cta {
      background: linear-gradient(135deg, rgba(10, 14, 26, 0.98) 0%, rgba(17, 16, 34, 0.98) 52%, rgba(24, 18, 40, 0.98) 100%);
      text-align: center;
      padding: 120px 40px;
      position: relative;
      overflow: hidden;
    }

    .final-cta::before {
      content: '';
      position: absolute;
      inset: 0;
      background:
        radial-gradient(ellipse at 50% 45%, rgba(152,16,250,0.12) 0%, rgba(152,16,250,0.05) 34%, transparent 72%),
        linear-gradient(180deg, rgba(152,16,250,0.03) 0%, rgba(152,16,250,0.015) 100%);
    }

    .final-cta h2 {
      font-family: 'Noto Sans', sans-serif;
      font-size: 32px;
      font-weight: 800;
      margin-bottom: 16px;
      position: relative;
    }

    .final-cta p {
      color: var(--text-secondary);
      font-size: 16px;
      margin-bottom: 40px;
      position: relative;
    }

    .final-cta .hero-cta { position: relative; }

    /* ─── FOOTER ─── */
    footer {
      background: var(--bg-dark2);
      border-top: 1px solid var(--border-subtle);
      padding: 48px 40px 32px;
    }

    .footer-inner {
      max-width: 1100px;
      margin: 0 auto;
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      gap: 40px;
      flex-wrap: wrap;
    }

    .footer-logo img { height: 24px; margin-bottom: 12px; }

    .footer-tagline {
      font-size: 12px;
      color: var(--text-muted);
      max-width: 220px;
      line-height: 1.7;
    }

    .footer-links {
      display: flex;
      gap: 32px;
      flex-wrap: wrap;
    }

    .footer-links a {
      font-size: 16px;
      color: var(--text-muted);
      text-decoration: none;
      transition: color 0.2s;
    }

    .footer-links a:hover { color: var(--text-primary); }

    .footer-bottom {
      max-width: 1100px;
      margin: 32px auto 0;
      padding-top: 24px;
      border-top: 1px solid var(--border-subtle);
      text-align: center;
      font-size: 12px;
      color: var(--text-muted);
    }

    /* ─── ANIMATIONS ─── */
    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(24px); }
      to   { opacity: 1; transform: translateY(0); }
    }

    @keyframes pulse {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.5; transform: scale(1.3); }
    }

    /* ─── RESPONSIVE ─── */
    @media (min-width: 861px) and (max-width: 1080px) {
      header {
        padding: 0 20px;
        gap: 18px;
        justify-content: flex-start;
      }

      .header-logo {
        flex: 0 1 auto;
        min-width: 0;
      }

      header nav {
        position: static;
        transform: none;
        flex: 1 1 auto;
        min-width: 0;
        justify-content: center;
        gap: clamp(16px, 2vw, 24px);
      }

      header nav a {
        font-size: 13px;
        white-space: nowrap;
      }

      .header-actions {
        flex: 0 0 auto;
        gap: 8px;
      }

      .header-login-link + .btn-primary-sm {
        margin-left: 0;
      }

      header .btn-primary-sm,
      header .header-contact-link {
        padding: 8px 14px;
        white-space: nowrap;
      }
    }

    @media (max-width: 860px) {
      header {
        gap: 12px;
        padding: 0 8px;
      }
      .hero {
        padding: 96px 20px 64px !important;
      }
      .hero::before {
        background: url("image/bgimg_sp.svg") center center / 100% auto no-repeat;
        opacity: 0.2;
      }
      .hero h1 {
        width: 100%;
        max-width: 680px;
        font-size: 36px;
        line-height: 1.25;
        letter-spacing: 0;
        padding: 10px 0;
        border-radius: 16px;
      }
      header nav { display: none; }
      header .header-login-link { display: none; }
      .header-logo {
        min-width: 0;
        flex: 1 1 auto;
        overflow: hidden;
      }
      .header-logo img {
        width: min(42vw, 178px);
        max-width: 100%;
        height: auto;
        max-height: 28px;
      }
      .header-actions {
        display: flex;
        flex: 0 0 auto;
        justify-content: flex-end;
        margin-left: auto;
        gap: 4px;
      }
      header .header-contact-link,
      header .header-actions > .btn-outline-sm:not(.header-login-link) {
        display: inline-flex !important;
      }
      header .btn-primary-sm,
      header .header-contact-link,
      header .header-actions > .btn-outline-sm:not(.header-login-link) {
        min-height: 36px;
        padding: 8px 7px;
        justify-content: center;
        white-space: nowrap;
        font-size: 12px;
        line-height: 1.2;
      }
      header .btn-primary-sm {
        width: 104px;
      }
      header .header-contact-link {
        width: 88px;
      }
      header .header-actions > .btn-outline-sm:not(.header-login-link) {
        width: 88px;
      }
      section { padding: 80px 24px; }
      .necessity-grid,
      .features-grid,
      .pricing-grid { grid-template-columns: 1fr; }
      .issues-layout,
      .dark-feature .container,
      .func-block { grid-template-columns: 1fr; gap: 32px; direction: ltr !important; }
      .features .func-block { grid-template-columns: 1fr; gap: 32px; }
      .func-block.reverse > * { direction: ltr; }
      .pricing-card.featured { transform: none; }
      .footer-inner { flex-direction: column; }
      .necessity-insight { padding: 28px 24px; }
      .necessity-copy { padding: 20px 20px 16px; }
      .solution-hero {
        padding: 84px 20px 88px;
      }
      .solution-hero h2 {
        font-size: 35px;
      }
      .solution-cloud {
        inset: 8px 0 0;
      }
      .solution-chip {
        font-size: 18px;
      }
      .feature-card { grid-template-columns: 1fr; }
      .feature-media { min-height: 180px; }
      .fc-list {
        gap: 10px;
      }
      .fc-list li {
        font-size: 16px;
        line-height: 1.7;
      }
      .solution-chip:nth-child(1) { top: 30px; left: 8%; }
      .solution-chip:nth-child(2) { top: 82px; left: -4%; font-size: 24px; }
      .solution-chip:nth-child(3) { top: 182px; left: 8%; font-size: 18px; }
      .solution-chip:nth-child(4) { bottom: 26px; left: 16%; font-size: 16px; }
      .solution-chip:nth-child(5) { top: 20px; right: 2%; font-size: 18px; }
      .solution-chip:nth-child(6) { top: 112px; right: -6%; font-size: 26px; }
      .solution-chip:nth-child(7) { top: 214px; right: 2%; font-size: 18px; }
      .solution-chip:nth-child(8) { bottom: 22px; right: 10%; font-size: 16px; }
    }

    @media (max-width: 380px) {
      header {
        gap: 8px;
        padding: 0 6px;
      }

      .header-logo img {
        width: min(38vw, 148px);
      }

      .header-actions {
        gap: 3px;
      }

      header .btn-primary-sm,
      header .header-contact-link,
      header .header-actions > .btn-outline-sm:not(.header-login-link) {
        min-height: 34px;
        padding: 7px 5px;
        font-size: 11px;
      }

      header .btn-primary-sm {
        width: 96px;
      }

      header .header-contact-link,
      header .header-actions > .btn-outline-sm:not(.header-login-link) {
        width: 78px;
      }
    }

    @media (max-width: 480px) {
      .hero h1 {
        font-size: 30px;
        line-height: 1.3;
      }

      .hero-sub {
        font-size: 15px;
      }
    }

    /* ─── TERMS PAGE ─── */
    .terms-page .hero {
      min-height: auto;
      display: block;
      padding: 130px 40px 56px;
      background:
        radial-gradient(circle at top, rgba(0,212,255,0.14) 0%, rgba(0,212,255,0.03) 36%, transparent 60%),
        linear-gradient(180deg, #1a2638 0%, #152031 52%, #101827 100%);
    }

    .terms-page .hero::before {
      background:
        url("image/bgimg_sub.svg") center / cover no-repeat,
        radial-gradient(circle at 20% 20%, rgba(0,212,255,0.12) 0%, transparent 34%),
        radial-gradient(circle at 80% 0%, rgba(0,184,160,0.08) 0%, transparent 30%);
      opacity: 0.06;
    }

    .terms-page .hero::after {
      background: linear-gradient(180deg, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0.04) 46%, rgba(255,255,255,0.02) 100%);
    }

    .terms-page .hero-inner,
    .terms-page .content {
      max-width: 1120px;
      margin: 0 auto;
      padding: 0 40px;
      position: relative;
      z-index: 1;
    }

    .terms-page .hero-heading {
      max-width: 860px;
      margin: 0 auto;
      text-align: center;
    }

    .terms-page .section-title {
      font-size: 50px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 16px;
      padding: 0;
      background: none;
      border-radius: 0;
      letter-spacing: -0.02em;
      animation: none;
    }

    .terms-page .hero-meta {
      margin-top: 24px;
      color: var(--text-muted);
      font-size: 16px;
    }

    .terms-page .content {
      padding-top: 40px;
      padding-bottom: 72px;
    }

    .terms-page .terms-breadcrumb-wrap {
      max-width: 1120px;
      margin: 0 auto;
      padding: 20px 40px 0;
      position: relative;
      z-index: 1;
    }

    .terms-page .terms-breadcrumb {
      position: static;
      left: auto;
      transform: none;
      display: flex;
      align-items: center;
      justify-content: flex-start;
      gap: 8px;
      font-size: 16px;
      color: var(--text-secondary);
    }

    .terms-page .terms-breadcrumb a {
      color: var(--text-secondary);
      text-decoration: none;
      transition: color 0.2s;
    }

    .terms-page .terms-breadcrumb a:hover {
      color: var(--accent-cyan);
    }

    .terms-page .terms-body,
    .terms-page .terms-section {
      padding: 0;
    }

    .terms-page .terms-section + .terms-section {
      margin-top: 28px;
      padding-top: 28px;
    }

    .terms-page .terms-section h2 {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
      font-size: 32px;
      line-height: 1.4;
    }

    .terms-page .terms-section h2::before {
      content: '';
      width: 4px;
      height: 22px;
      border-radius: 999px;
      background: var(--gradient-accent);
      box-shadow: 0 0 16px rgba(0,212,255,0.2);
    }

    .terms-page .terms-section p + p,
    .terms-page .terms-section p + ul,
    .terms-page .terms-section ul + p,
    .terms-page .terms-section ul + ul {
      margin-top: 12px;
    }

    .terms-page .terms-section p,
    .terms-page .terms-section li {
      color: var(--text-secondary);
      font-size: 15px;
    }

    .terms-page .terms-section .terms-clause {
      margin-top: 14px;
    }

    .terms-page .terms-section .terms-subitem {
      margin-top: 8px;
      padding-left: 2.75em;
      text-indent: -2.75em;
    }

    .terms-page .terms-end {
      text-align: right;
    }

    .terms-page .terms-section ul {
      padding-left: 20px;
    }

    .terms-page .terms-section li + li {
      margin-top: 8px;
    }

    @media (max-width: 680px) {
      .terms-page .hero-inner,
      .terms-page .content,
      .terms-page .terms-breadcrumb-wrap {
        padding-left: 24px;
        padding-right: 24px;
      }

      .terms-page .hero {
        padding: 72px 0 40px;
      }

      .terms-page .section-title {
        font-size: 32px;
        line-height: 1.35;
        letter-spacing: 0;
      }

      .terms-page .terms-section h2 {
        gap: 10px;
        font-size: 22px;
        line-height: 1.5;
      }

      .terms-page .terms-section h2::before {
        height: 18px;
      }
    }

    @media (max-width: 480px) {
      .terms-page .section-title {
        font-size: 28px;
      }

      .terms-page .terms-section h2 {
        font-size: 20px;
      }
    }