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

header { padding: 20px 40px; display: flex; justify-content: space-between; align-items: center; max-width: 1200px; margin: 0 auto; }
header h1 { font-size: 1rem; font-weight: 700; letter-spacing: -0.01em; display: flex; align-items: center; gap: 9px; }
header h1 a { color: var(--ink); text-decoration: none; display: flex; align-items: center; gap: 9px; }
.logo-mark { width: 22px; height: 22px; }
header nav { display: flex; gap: 24px; align-items: center; }
header nav a { color: var(--muted); text-decoration: none; font-size: 0.85rem; }
header nav a:hover { color: var(--ink); }

.hero { max-width: 880px; margin: 0 auto; padding: 72px 24px 32px; text-align: center; }
.hero h2 { font-size: 3rem; font-weight: 800; margin-bottom: 20px; letter-spacing: -0.03em; line-height: 1.12; }
.hero h2 span { color: var(--accent-text); }
.hero p { color: var(--muted); font-size: 1.2rem; margin-bottom: 34px; max-width: 640px; margin-left: auto; margin-right: auto; }
.hero-buttons { display: flex; gap: 14px; justify-content: center; align-items: center; flex-wrap: wrap; }
.btn-primary { display: inline-flex; align-items: center; gap: 10px; padding: 14px 26px; border-radius: 12px; text-decoration: none; font-weight: 700; font-size: 0.95rem; transition: transform 0.15s, background 0.2s; }
.btn-primary:hover { transform: scale(1.03); }
.btn-primary svg { width: 22px; height: 22px; }
.btn-note { color: var(--faint); font-size: 0.82rem; margin-top: 16px; }

.mockup-wrap { max-width: 980px; margin: 0 auto; padding: 44px 24px 72px; }
.window { border-radius: 14px; overflow: hidden; background: var(--surface); border: 1px solid var(--line); }
.titlebar { height: 40px; border-bottom: 1px solid var(--line); display: flex; align-items: center; padding: 0 14px; gap: 8px; }
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot.r { background: #ff5f57; } .dot.y { background: #febc2e; } .dot.g { background: #28c840; }
.titlebar .title { flex: 1; text-align: center; font-size: 0.8rem; color: var(--muted); font-weight: 500; }
.window img { display: block; width: 100%; height: auto; }

.features { max-width: 900px; margin: 0 auto; padding: 24px 24px 72px; }
.features h3.section-title { text-align: center; font-size: 1.8rem; font-weight: 800; margin-bottom: 44px; letter-spacing: -0.02em; }
.features-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.feature { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 26px; }
.feature-icon { font-size: 1.5rem; margin-bottom: 12px; }
.feature h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; }
.feature p { color: var(--muted); font-size: 0.9rem; line-height: 1.6; }

.showcase { max-width: 1100px; margin: 0 auto; padding: 8px 24px 40px; }
.showcase-item { display: flex; align-items: center; gap: 56px; margin-bottom: 72px; }
.showcase-item.reverse { flex-direction: row-reverse; }
.showcase-text { flex: 1; }
.showcase-text h3 { font-size: 1.5rem; font-weight: 800; margin-bottom: 12px; letter-spacing: -0.02em; }
.showcase-text p { color: var(--muted); font-size: 1rem; line-height: 1.7; }
.showcase-img { flex: 1.35; }
.showcase-img img { width: 100%; height: auto; border-radius: 12px; border: 1px solid var(--line); }

.privacy-banner { text-align: center; padding: 60px 24px; }
.privacy-banner h3 { font-size: 1.4rem; font-weight: 800; margin-bottom: 8px; letter-spacing: -0.01em; }
.privacy-banner p { color: var(--muted); font-size: 1rem; max-width: 580px; margin: 0 auto; }

footer { text-align: center; padding: 40px 24px; color: var(--faint); font-size: 0.85rem; }
footer a { color: var(--muted); text-decoration: none; margin: 0 12px; }
footer a:hover { color: var(--ink); }

@media (max-width: 768px) {
  .hero h2 { font-size: 2rem; }
  .features-grid { grid-template-columns: 1fr; }
  .showcase-item, .showcase-item.reverse { flex-direction: column; gap: 28px; margin-bottom: 48px; }
  header { padding: 16px 20px; }
  .hero { padding: 44px 20px 20px; }
}