.feature-page-shell > .site-header { width:min(1080px, 100%); margin:0 auto; }
    .feature-page-main { display:grid; gap:42px; }
    .opera-ai-hero { display:grid; gap:24px; padding-top:18px; }
    .opera-ai-hero-copy { max-width:860px; margin:0 auto; text-align:center; }
    .opera-ai-hero-copy h1 { margin:0; font-size:clamp(42px, 5.8vw, 76px); line-height:1.02; letter-spacing:-0.055em; }
    .opera-ai-hero-copy p { max-width:760px; margin:18px auto 0; color:var(--muted); font-size:clamp(17px, 2vw, 21px); line-height:1.75; }
    .opera-ai-hero-actions { display:flex; justify-content:center; gap:14px; margin-top:24px; flex-wrap:wrap; }
    .opera-ai-secondary-link { display:inline-flex; align-items:center; justify-content:center; min-width:168px; padding:13px 22px; border-radius:14px; text-decoration:none; color:#111827; background:#eef2f7; font-size:14px; font-weight:700; }
    .opera-ai-hero-stage { padding:28px; border-radius:34px; background:linear-gradient(180deg, #12182b 0%, #0e1425 100%); box-shadow:0 26px 60px rgba(8, 12, 24, .24); }
    .opera-ai-hero-stage img { display:block; width:min(1020px, 100%); margin:0 auto; border-radius:22px; }
    .opera-ai-benefits { display:grid; gap:20px; }
    .opera-ai-section-heading { max-width:760px; }
    .opera-ai-section-heading.center { margin:0 auto; text-align:center; }
    .opera-ai-section-heading h2 { margin:0; font-size:clamp(32px, 4.2vw, 54px); line-height:1.06; letter-spacing:-0.045em; }
    .opera-ai-section-heading p { margin:14px 0 0; color:var(--muted); font-size:16px; line-height:1.8; }
    .opera-ai-benefit-grid { display:grid; grid-template-columns:repeat(4, 1fr); gap:16px; }
    .opera-ai-benefit-card { min-height:220px; padding:26px 22px; border-radius:26px; background:#f3f6fa; display:flex; flex-direction:column; }
    .opera-ai-benefit-card strong { font-size:14px; color:#6f43ff; }
    .opera-ai-benefit-card h3 { margin:14px 0 0; font-size:24px; letter-spacing:-0.03em; }
    .opera-ai-benefit-card p { margin:auto 0 0; color:#5b6476; font-size:14px; line-height:1.75; }
    .opera-ai-showcase { display:grid; grid-template-columns:1.05fr .95fr; gap:18px; align-items:stretch; }
    .opera-ai-showcase-copy, .opera-ai-showcase-visual { border-radius:30px; overflow:hidden; }
    .opera-ai-showcase-copy { padding:30px 28px; background:#f4f7fb; display:flex; flex-direction:column; }
    .opera-ai-showcase-copy h2 { margin:0; font-size:clamp(30px, 4vw, 48px); line-height:1.06; letter-spacing:-0.045em; }
    .opera-ai-showcase-copy p { margin:16px 0 0; color:var(--muted); font-size:15px; line-height:1.82; }
    .opera-ai-prompt-list { display:grid; gap:12px; margin-top:22px; }
    .opera-ai-prompt { padding:16px 18px; border-radius:18px; background:#fff; border:1px solid #e7edf5; }
    .opera-ai-prompt span { display:block; color:#6f43ff; font-size:12px; font-weight:700; margin-bottom:8px; }
    .opera-ai-prompt p { margin:0; color:#202737; font-size:14px; line-height:1.7; }
    .opera-ai-showcase-visual { padding:18px; background:linear-gradient(180deg, #f1ecff 0%, #eef5ff 100%); }
    .opera-ai-showcase-visual img { display:block; width:100%; height:100%; object-fit:contain; border-radius:22px; background:#fff; }
    .opera-ai-workflow { display:grid; grid-template-columns:repeat(3, 1fr); gap:18px; }
    .opera-ai-work-card { padding:28px 24px; border-radius:26px; background:#f5f7fb; }
    .opera-ai-work-card h3 { margin:0; font-size:24px; letter-spacing:-0.03em; }
    .opera-ai-work-card p { margin:14px 0 0; color:var(--muted); font-size:14px; line-height:1.78; }
    .opera-ai-faq-list { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
    .opera-ai-bottom-cta { margin-top:4px; }
    @media (max-width: 1024px) {
      .opera-ai-benefit-grid, .opera-ai-showcase, .opera-ai-workflow, .opera-ai-faq-list { grid-template-columns:1fr; }
    }
    @media (max-width: 720px) {
      .opera-ai-hero-stage { padding:18px; border-radius:24px; }
      .opera-ai-showcase-copy, .opera-ai-work-card, .opera-ai-benefit-card { padding:24px 20px; }
      .opera-ai-hero-copy h1 { font-size:42px; }
      .opera-ai-hero-copy p { font-size:16px; }
    }