:root {
  --bg:           #fdfdfe;
  --surface:      #ffffff;
  --text:         #0f1216;
  --text-soft:    #52585f;
  --text-muted:   #6f767f;
  --accent:       #17191b;
  --hover:        #2c3743;
  --border:       #e5e8eb;
  --shadow-sm:    0 1px 3px rgba(0,0,0,0.04);
  --shadow-md:    0 8px 24px -8px rgba(0,0,0,0.08);
  --transition:   0.26s cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.54;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.canvas {
  min-height: 100vh;
  padding: clamp(80px, 12vh, 140px) clamp(24px, 6vw, 80px) clamp(140px, 22vh, 260px);
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: clamp(100px, 18vh, 220px) 0;
}

.logo-container {
  margin-bottom: clamp(100px, 20vh, 240px);
}

.logo {
  max-width: 380px;
  width: min(64vw, 380px);
  height: auto;
  display: block;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.05));
}

.intro-block {
  max-width: 780px;
  margin: 0 0 clamp(120px, 22vh, 280px);
}

h1 {
  font-family: Georgia, "Times New Roman", Times, serif;
  font-size: clamp(4.8rem, 13vw, 12.5rem);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.84;
  margin-bottom: 0.12em;
}

.tagline {
  font-size: clamp(1.4rem, 4.2vw, 2.3rem);
  color: var(--text-soft);
  margin-bottom: 1.3em;
  letter-spacing: 0.01em;
}

.lead {
  font-size: 1.32rem;
  color: var(--text-muted);
  max-width: 640px;
}

.mirrors-section {
  margin: 0 0 clamp(140px, 26vh, 320px);
  max-width: 1000px;
}

.mirrors-section h2 {
  font-family: Georgia, serif;
  font-size: clamp(2.8rem, 7.5vw, 5.6rem);
  font-weight: 400;
  margin-bottom: 1.4em;
  color: var(--text-soft);
}

.mirror-list {
  display: grid;
  gap: clamp(32px, 6vh, 72px) 0;
}

.mirror-item a {
  display: block;
  font-family: ui-monospace, "Cascadia Mono", "Segoe UI Mono", Menlo, monospace;
  font-size: clamp(1.15rem, 3.6vw, 1.8rem);
  color: var(--accent);
  text-decoration: none;
  word-break: break-all;
  padding: 0.6em 0 0.6em 1.6em;
  position: relative;
  transition: color var(--transition);
}

.mirror-item a::before {
  content: "";
  position: absolute;
  inset: 0  auto 0 0;
  width: 4px;
  background: var(--hover);
  transform: scaleY(0.08);
  transform-origin: bottom;
  transition: transform var(--transition);
}

.mirror-item a:hover,
.mirror-item a:focus-visible {
  color: var(--text);
}

.mirror-item a:hover::before,
.mirror-item a:focus-visible::before {
  transform: scaleY(1);
}

.mirror-notice {
  margin-top: 4em;
  font-size: 1.04rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.content-section {
  max-width: 1000px;
  margin: 0 0 clamp(100px, 20vh, 240px);
}

.content-section h2 {
  font-family: Georgia, serif;
  font-size: clamp(2.6rem, 6.8vw, 5rem);
  font-weight: 400;
  margin-bottom: 1.5em;
  color: var(--text-soft);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: clamp(24px, 4vw, 40px);
}

.feature h3 {
  font-size: 1.42rem;
  font-weight: 600;
  margin-bottom: 0.9em;
  color: var(--text);
}

.feature p {
  color: var(--text-muted);
  font-size: 1.08rem;
}

figure {
  margin: 0 0 clamp(80px, 16vh, 200px);
}

figcaption {
  font-size: 1.06rem;
  color: var(--text-muted);
  margin-bottom: 1.8rem;
  font-style: italic;
  letter-spacing: -0.005em;
}

.screenshots img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: var(--shadow-md);
  background: white;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.screenshots img:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px -20px rgba(0,0,0,0.12);
}

.product-list {
  list-style: none;
  font-size: 1.14rem;
  margin: 1.4em 0 2em;
}

.product-list li {
  padding: 0.8em 0;
  border-bottom: 1px solid #eaedf0;
  color: var(--text-muted);
}

.product-list li:last-child {
  border-bottom: none;
}

.update-note {
  font-style: italic;
  color: var(--text-soft);
  font-size: 1.06rem;
}

.steps {
  counter-reset: step;
  list-style: none;
  margin: 2em 0 2.8em;
}

.steps li {
  counter-increment: step;
  position: relative;
  padding-left: 3.2em;
  margin-bottom: 1.6em;
  font-size: 1.12rem;
  color: var(--text-muted);
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0.1em;
  width: 2.2em;
  height: 2.2em;
  background: #eef0f3;
  color: var(--text-soft);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 600;
}

.warning-box {
  background: #fafbfc;
  border-left: 5px solid #d5dbe1;
  padding: 1.8em 2em;
  margin: 2.6em 0;
  border-radius: 6px;
  font-size: 1.08rem;
  line-height: 1.65;
  color: var(--text-muted);
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2.4rem 1.8rem;
  margin-top: 2em;
}

.stats dt {
  font-weight: 600;
  color: var(--text-soft);
  margin-bottom: 0.5em;
  font-size: 1.04rem;
}

.stats dd {
  font-size: 1.14rem;
  color: var(--text-muted);
}

.disclaimer {
  margin-top: clamp(120px, 24vh, 300px);
  font-size: 1rem;
  color: var(--text-muted);
  text-align: right;
  max-width: 720px;
  margin-left: auto;
  line-height: 1.7;
}

.disclaimer p {
  margin-bottom: 1.4em;
}

.seo-foot {
  font-size: 0.94rem;
  opacity: 0.75;
  margin-top: 2em;
  letter-spacing: 0.01em;
}

@media (max-width: 860px) {
  .canvas {
    padding: clamp(70px, 14vh, 110px) clamp(20px, 7vw, 50px) clamp(160px, 28vh, 320px);
  }

  .intro-block {
    margin-bottom: clamp(90px, 20vh, 220px);
  }

  .mirrors-section {
    margin-bottom: clamp(110px, 24vh, 280px);
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}

.primary-badge {
  display: inline-block;
  margin-left: 1.2em;
  margin-top: 0.4em;
  font-size: 0.92rem;
  color: #2c3743;
  background: #eef0f3;
  padding: 0.28em 0.8em;
  border-radius: 4px;
  font-weight: 500;
}

.mirror-item {
  position: relative;
}

.mirror-item a {
  padding-right: 1em;
}

.mirror-notice {
  margin-top: 3.8em;
  font-size: 1.05rem;
  line-height: 1.62;
  color: var(--text-muted);
}

.content-section {
  margin-bottom: clamp(90px, 18vh, 220px);
}

h2 {
  font-family: Georgia, "Times New Roman", Times, serif;
  font-weight: 400;
  letter-spacing: -0.02em;
}

.feature-grid {
  gap: clamp(28px, 4.5vw, 48px) clamp(20px, 3vw, 36px);
}

.feature {
  background: var(--surface);
  padding: 1.8em 2em;
  border-radius: 8px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform 0.28s ease, box-shadow 0.28s ease;
}

.feature:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.feature h3 {
  font-size: 1.38rem;
  margin-bottom: 0.85em;
  color: var(--text);
}

figure {
  margin-bottom: clamp(90px, 18vh, 220px);
}

figcaption {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 1.6rem;
  font-style: italic;
}

.screenshots img {
  border-radius: 8px;
  transition: transform 0.38s ease, box-shadow 0.38s ease;
}

.screenshots img:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 64px -24px rgba(0,0,0,0.11);
}

.product-list li {
  padding: 0.85em 0;
  font-size: 1.12rem;
  color: var(--text-muted);
  border-bottom: 1px solid #e9ecf0;
}

.product-list li:last-child {
  border-bottom: none;
}

.update-note {
  font-size: 1.04rem;
  color: var(--text-soft);
  font-style: italic;
  margin-top: 1.6em;
}

.steps li {
  padding-left: 3.4em;
  margin-bottom: 1.8em;
  font-size: 1.11rem;
  color: var(--text-muted);
}

.steps li::before {
  width: 2.3em;
  height: 2.3em;
  line-height: 2.3em;
  font-size: 1.02rem;
  background: #f0f2f5;
  color: var(--text-soft);
}

.warning-box {
  border-radius: 8px;
  background: #fafbfc;
  border-left-color: #c8d0d9;
  padding: 1.9em 2.2em;
  margin: 2.8em 0;
  font-size: 1.07rem;
  line-height: 1.68;
}

.faq-list dt {
  font-weight: 600;
  color: var(--text);
  margin: 1.8em 0 0.6em;
  font-size: 1.18rem;
}

.faq-list dd {
  margin-bottom: 1.2em;
  padding-left: 1.2em;
  color: var(--text-muted);
  font-size: 1.08rem;
  border-left: 3px solid #e0e5ea;
}

.disclaimer {
  line-height: 1.72;
  font-size: 1.01rem;
}

.seo-foot {
  margin-top: 2.2em;
  font-size: 0.96rem;
  opacity: 0.78;
  letter-spacing: 0.005em;
}

@media (max-width: 920px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .feature {
    padding: 1.6em 1.8em;
  }

  .steps li {
    padding-left: 3em;
  }

  .steps li::before {
    width: 2.1em;
    height: 2.1em;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    transform: none !important;
    animation: none !important;
  }
}