.spec-section { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 96px 0; }
  .spec-section .spec-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: start; }
  .spec-section .spec-prose { max-width: 440px; }
  .spec-section .spec-prose .eyebrow { margin-bottom: 16px; }
  .spec-section .spec-prose p { font-size: 15px; line-height: 1.7; color: var(--ink-2); margin: 0 0 16px; }
  .spec-section .spec-prose p:last-child { margin-bottom: 0; }
  .spec-section .spec-novel { margin-top: 32px; border-top: 1px solid var(--line); padding-top: 24px; }
  .spec-section .spec-novel-label { font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-4); margin-bottom: 12px; }
  .spec-section .spec-novel-points { display: flex; flex-direction: column; gap: 10px; }
  .spec-section .spec-novel-point { display: flex; gap: 10px; align-items: flex-start; font-size: 13px; color: var(--ink-2); line-height: 1.5; }
  .spec-section .spec-novel-point::before { content: '→'; color: var(--accent); font-weight: 600; flex-shrink: 0; margin-top: 1px; }
  .spec-section .spec-right { display: flex; flex-direction: column; gap: 16px; padding-top: 68px; }
  .spec-section .spec-file { border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: var(--bg); }
  .spec-section .spec-file-head { display: flex; align-items: center; gap: 8px; padding: 10px 14px; background: var(--surface-2); border-bottom: 1px solid var(--line); }
  .spec-section .spec-file-icon { width: 20px; height: 20px; border-radius: 5px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
  .spec-section .spec-file-icon.journey { background: #EDF0FF; color: #4F62E4; }
  .spec-section .spec-file-icon.skill   { background: #F0FDF4; color: #16A34A; }
  .spec-section .spec-file-icon svg { width: 11px; height: 11px; }
  .spec-section .spec-file-name { font-family: var(--mono); font-size: 11px; font-weight: 600; color: var(--ink); }
  .spec-section .spec-file-badge { margin-left: auto; font-size: 9.5px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; padding: 2px 6px; border-radius: 20px; }
  .spec-section .spec-file-badge.yours { background: #EDF0FF; color: #4F62E4; }
  .spec-section .spec-file-badge.skill  { background: #F0FDF4; color: #16A34A; }
  .spec-section .spec-file-body { padding: 12px 14px; display: flex; flex-direction: column; gap: 6px; }
  .spec-section .spec-dim-row { display: flex; align-items: baseline; gap: 8px; font-size: 11.5px; }
  .spec-section .spec-dim-label { font-weight: 600; color: var(--ink-3); white-space: nowrap; min-width: 130px; font-size: 10.5px; text-transform: uppercase; letter-spacing: .04em; }
  .spec-section .spec-dim-value { color: var(--ink); line-height: 1.4; }
  .spec-section .spec-dim-value.pill { display: inline-flex; align-items: center; gap: 4px; padding: 1px 7px; border-radius: 20px; font-size: 11px; font-weight: 500; }
  .spec-section .spec-dim-value.advisory { background: #E8F0FF; color: #2563EB; }
  .spec-section .spec-dim-value.advisory::before { content:''; width:5px; height:5px; border-radius:50%; background:#2563EB; display:inline-block; }
  .spec-section .spec-dim-value.highlight { color: var(--accent); font-weight: 500; }
  .spec-section .spec-divider { height: 1px; background: var(--line); margin: 4px 0; }
  .spec-section .spec-prompt { background: var(--surface-2); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; }
  .spec-section .spec-prompt-label { font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-4); margin-bottom: 8px; }
  .spec-section .spec-prompt-text { font-size: 13px; color: var(--ink-2); line-height: 1.6; }
  .spec-section .spec-prompt-text strong { color: var(--ink); font-weight: 600; }
  .spec-section .spec-output-row { display: flex; gap: 8px; flex-wrap: wrap; }
  .spec-section .spec-output-chip { font-size: 11.5px; padding: 4px 10px; border-radius: 20px; border: 1px solid var(--line); color: var(--ink-2); background: var(--surface); font-weight: 500; }
  .spec-section .spec-right { padding-top: 4px; }
  .spec-section .spec-shot {
    border: 1px solid var(--line); border-radius: 12px; overflow: hidden;
    background: var(--surface);
    box-shadow: 0 1px 2px rgba(0,0,0,.18), 0 12px 30px rgba(0,0,0,.28);
  }
  .spec-section .spec-shot img { display: block; width: 100%; height: auto; }
  .spec-section .spec-shot-cap {
    font-family: var(--mono); font-size: 10.5px; font-weight: 500;
    letter-spacing: .04em; text-transform: uppercase; color: var(--ink-4);
    padding: 9px 13px; border-top: 1px solid var(--line); background: var(--surface-2);
  }
  .spec-section .spec-shot-stack { display: flex; flex-direction: column; gap: 18px; }
  .spec-section .spec-shot.is-export { max-width: 340px; margin-left: auto; }
  @media (max-width: 860px) {
    .spec-section .spec-inner { grid-template-columns: 1fr; gap: 48px; }
    .spec-section .spec-prose { max-width: 100%; }
  }

  /* ── Sovereign AI ─────────────────────────────────────────── */
  #sovereign .section-lede { max-width: 640px; }

  .sovereign-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    margin-top: 48px;
    align-items: start;
  }

  .sovereign-intro p {
    color: var(--ink-2);
    line-height: 1.7;
    margin-bottom: 16px;
  }
  .sovereign-intro strong { color: var(--ink); }
  .sovereign-intro .btn-on-dark { display: inline-flex; }

  .sovereign-types {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 24px;
  }

  .sovereign-type-label {
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: var(--ink-4);
    margin-bottom: 16px;
  }

  .sovereign-list {
    list-style: none;
    padding: 0; margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0;
  }

  .sovereign-list li {
    display: flex;
    align-items: baseline;
    gap: 12px;
    font-size: 13px;
    line-height: 1.5;
    color: var(--ink-3);
    padding: 11px 0;
    border-bottom: 1px solid var(--line);
  }
  .sovereign-list li:last-child { border-bottom: none; }

  .sov-tag {
    font-family: var(--mono);
    font-size: 10.5px;
    font-weight: 600;
    letter-spacing: .04em;
    color: var(--system);
    background: var(--system-soft);
    border: 1px solid var(--system-line);
    padding: 2px 7px;
    border-radius: 4px;
    white-space: nowrap;
    flex-shrink: 0;
  }

  @media (max-width: 768px) {
    .sovereign-grid { grid-template-columns: 1fr; gap: 32px; }
  }