:root {
  --ink: #0c0c0c;
  --ink-90: #1a1a1a;
  --ink-80: #2a2a2a;
  --ink-60: #555;
  --ink-40: #888;
  --ink-20: #bbb;
  --ink-10: #e5e5e5;
  --ink-05: #f2f2f2;
  --surface: #fafaf9;
  --accent: #e85d04;
  --accent-hover: #d45303;
  --accent-soft: #fff4ed;
  --accent-muted: rgba(232, 93, 4, 0.08);
  --blue: #2563eb;
  --blue-soft: #eff6ff;
  --green: #16a34a;
  --green-soft: #f0fdf4;
  --font-display: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --max-w: 1120px;
  --section-pad: 100px;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--surface);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: color 0.2s; }
img { max-width: 100%; display: block; height: auto; }
ul, ol { list-style: none; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: 64px;
  display: flex; align-items: center;
  background: rgba(250, 250, 249, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--ink-10);
  transition: background 0.3s;
}
.nav.dark-mode {
  background: rgba(12, 12, 12, 0.9);
  border-bottom-color: rgba(255,255,255,0.08);
}
.nav.dark-mode .nav-logo { color: #fff; }
.nav.dark-mode .nav-link { color: rgba(255,255,255,0.6); }
.nav.dark-mode .nav-link:hover { color: #fff; background: rgba(255,255,255,0.08); }
.nav.dark-mode .nav-link.active { color: #fff; background: rgba(255,255,255,0.12); }
.nav.dark-mode .nav-cta { background: var(--accent); color: #fff; }
.nav.dark-mode .nav-cta:hover { background: var(--accent-hover); }
.nav.dark-mode .nav-toggle span { background: #fff; }

.nav-inner {
  max-width: var(--max-w); width: 100%; margin: 0 auto;
  padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-size: 1.1rem; font-weight: 700; color: var(--ink);
  letter-spacing: -0.02em;
}
.nav-logo-mark {
  width: 32px; height: 32px;
  background: var(--ink); border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 0.7rem; font-weight: 800;
  letter-spacing: -0.5px;
}
.nav.dark-mode .nav-logo-mark { background: var(--accent); }

.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-link {
  font-size: 0.875rem; font-weight: 500;
  color: var(--ink-60); padding: 8px 14px;
  border-radius: 6px;
}
.nav-link:hover { color: var(--ink); background: var(--ink-05); }
.nav-link.active { color: var(--ink); font-weight: 600; }
.nav-cta {
  margin-left: 12px;
  background: var(--ink); color: #fff;
  padding: 8px 18px; border-radius: 8px;
  font-size: 0.85rem; font-weight: 600;
  border: none; cursor: pointer;
  transition: all 0.2s var(--ease);
}
.nav-cta:hover { opacity: 0.85; transform: translateY(-1px); }

.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 8px; background: none; border: none;
}
.nav-toggle span { width: 20px; height: 1.5px; background: var(--ink); border-radius: 2px; }

.hero {
  position: relative;
  background: var(--ink);
  color: #fff;
  padding: 100px 0 80px;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 60px; align-items: center;
}

.hero-text { padding: 0 24px; }
.hero-label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.75rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--accent); margin-bottom: 24px;
}
.hero-label-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 800; line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}
.hero h1 em {
  font-style: normal;
  color: var(--accent);
}
.hero-desc {
  font-size: 1.05rem; line-height: 1.7;
  color: rgba(255,255,255,0.55);
  max-width: 440px; margin-bottom: 36px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; border-radius: 10px;
  font-size: 0.9rem; font-weight: 600;
  border: none; cursor: pointer;
  transition: all 0.25s var(--ease);
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; }
.btn-accent {
  background: var(--accent); color: #fff;
  box-shadow: 0 4px 20px rgba(232, 93, 4, 0.3);
}
.btn-accent:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(232, 93, 4, 0.35); }
.btn-ghost {
  background: rgba(255,255,255,0.08); color: #fff;
  border: 1px solid rgba(255,255,255,0.12);
}
.btn-ghost:hover { background: rgba(255,255,255,0.14); }
.btn-dark {
  background: var(--ink); color: #fff;
}
.btn-dark:hover { opacity: 0.85; transform: translateY(-1px); }
.btn-sm { padding: 8px 16px; font-size: 0.825rem; border-radius: 8px; }

.hero-visual {
  position: relative;
  display: flex; align-items: center; justify-content: center;
  padding: 0 24px;
}
.headunit {
  width: 420px; height: 260px;
  background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
  border-radius: 16px; padding: 10px;
  box-shadow: 0 40px 80px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.06);
  position: relative;
}
.headunit-bezel {
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 8px; height: 20px;
  background: #333; border-radius: 0 0 4px 4px;
}
.headunit-screen {
  width: 100%; height: 100%;
  background: linear-gradient(160deg, #1e3a5f 0%, #0f2440 50%, #0a1628 100%);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  gap: 16px; overflow: hidden;
}
.headunit-screen-icon {
  width: 56px; height: 56px;
  background: linear-gradient(135deg, var(--accent), #ff8c42);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 20px rgba(232, 93, 4, 0.3);
  flex-shrink: 0;
}
.headunit-screen-icon svg { width: 28px; height: 28px; fill: #fff; stroke: none; }
.headunit-screen-info { text-align: left; }
.headunit-screen-title { font-size: 1.1rem; font-weight: 700; color: #fff; letter-spacing: -0.02em; }
.headunit-screen-ver { font-size: 0.75rem; color: rgba(255,255,255,0.4); margin-top: 2px; }
.headunit-screen-tag {
  display: inline-block; margin-top: 8px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 4px; padding: 2px 8px;
  font-size: 0.65rem; color: rgba(255,255,255,0.5);
}

.hero-visual-mobile { display: none; }

.hero-float {
  position: absolute;
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px; padding: 12px 16px;
  display: flex; align-items: center; gap: 10px;
  font-size: 0.8rem; color: rgba(255,255,255,0.7);
}
.hero-float-icon {
  width: 36px; height: 36px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.hero-float-icon svg { width: 18px; height: 18px; fill: currentColor; stroke: none; }
.hero-float-1 { top: 60px; right: -20px; }
.hero-float-1 .hero-float-icon { background: rgba(232, 93, 4, 0.2); }
.hero-float-1 .hero-float-icon svg { fill: var(--accent); }
.hero-float-2 { bottom: 80px; left: -30px; }
.hero-float-2 .hero-float-icon { background: rgba(34, 197, 94, 0.2); }
.hero-float-2 .hero-float-icon svg { fill: #22c55e; }

.stats-bar {
  position: relative; z-index: 2;
  margin-top: -60px;
  padding: 0 24px;
}
.stats-inner {
  max-width: var(--max-w); margin: 0 auto;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 24px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  display: grid; grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--ink-10);
}
.stat-item {
  padding: 28px 24px;
  text-align: center;
  border-right: 1px solid var(--ink-10);
}
.stat-item:last-child { border-right: none; }
.stat-value {
  font-family: var(--font-display);
  font-size: 1.75rem; font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--ink);
}
.stat-value .accent { color: var(--accent); }
.stat-label {
  font-size: 0.8rem; color: var(--ink-40);
  margin-top: 4px;
}

.section {
  padding: var(--section-pad) 0;
}
.section-head {
  margin-bottom: 48px;
}
.section-eyebrow {
  font-size: 0.75rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--accent); margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800; letter-spacing: -0.03em;
  color: var(--ink); line-height: 1.15;
  margin-bottom: 12px;
}
.section-desc {
  font-size: 1rem; color: var(--ink-60);
  max-width: 480px; line-height: 1.7;
}

.download-section { background: #fff; border-top: 1px solid var(--ink-10); }
.download-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  max-width: 680px;
}
.dl-card {
  background: var(--ink-05);
  border: 1px solid var(--ink-10);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all 0.25s var(--ease);
  position: relative;
}
.dl-card:hover {
  border-color: var(--ink-20);
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
  transform: translateY(-2px);
}
.dl-card.recommended {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.dl-card .dl-rec-tag {
  position: absolute; top: 16px; right: 16px;
  background: var(--accent); color: #fff;
  padding: 3px 10px; border-radius: 4px;
  font-size: 0.65rem; font-weight: 700;
  letter-spacing: 0.04em;
}
.dl-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem; font-weight: 700;
  letter-spacing: -0.01em; margin-bottom: 6px;
  padding-right: 70px;
}
.dl-card.recommended h3 { padding-right: 0; }
.dl-card .dl-desc {
  font-size: 0.85rem; color: var(--ink-40);
  line-height: 1.5; margin-bottom: 20px;
}
.dl-card .btn { width: 100%; justify-content: center; }

.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-template-rows: auto auto;
  gap: 16px;
}
.bento-card {
  background: #fff;
  border: 1px solid var(--ink-10);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.3s var(--ease);
  position: relative; overflow: hidden;
}
.bento-card:hover {
  border-color: var(--ink-20);
  box-shadow: 0 8px 30px rgba(0,0,0,0.06);
  transform: translateY(-3px);
}
.bento-card.span-7 { grid-column: span 7; }
.bento-card.span-5 { grid-column: span 5; }
.bento-card.span-4 { grid-column: span 4; }
.bento-card.span-8 { grid-column: span 8; }
.bento-icon {
  width: 44px; height: 44px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.bento-icon svg { width: 22px; height: 22px; fill: currentColor; stroke: none; }
.bento-icon.orange { background: var(--accent-soft); }
.bento-icon.orange svg { fill: var(--accent); }
.bento-icon.blue { background: var(--blue-soft); }
.bento-icon.blue svg { fill: var(--blue); }
.bento-icon.green { background: var(--green-soft); }
.bento-icon.green svg { fill: var(--green); }
.bento-icon.dark { background: var(--ink-05); }
.bento-icon.dark svg { fill: var(--ink); }
.bento-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem; font-weight: 700;
  letter-spacing: -0.01em; margin-bottom: 8px;
}
.bento-card p {
  font-size: 0.875rem; color: var(--ink-60);
  line-height: 1.65;
}

.screenshots-section { background: #fff; border-top: 1px solid var(--ink-10); }
.screenshots-scroll {
  display: flex; gap: 16px;
  overflow-x: auto; padding: 4px 0;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.screenshots-scroll::-webkit-scrollbar { display: none; }
.screenshot-card {
  flex: 0 0 380px; height: 220px;
  background: var(--ink-05);
  border: 1px solid var(--ink-10);
  border-radius: var(--radius-lg);
  scroll-snap-align: start;
  position: relative; overflow: hidden;
  transition: all 0.3s var(--ease);
}
.screenshot-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}
.screenshot-card .sc-image {
  width: 100%; height: 100%;
  object-fit: cover; display: block;
}
.screenshot-card .sc-label {
  position: absolute; bottom: 12px; left: 12px;
  background: var(--ink); color: #fff;
  padding: 4px 10px; border-radius: 6px;
  font-size: 0.7rem; font-weight: 600;
}

.cta-section {
  background: var(--ink); color: #fff;
  text-align: center;
  position: relative; overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute; top: -50%; left: 50%; transform: translateX(-50%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(232, 93, 4, 0.08), transparent 70%);
  pointer-events: none;
}
.cta-section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800; letter-spacing: -0.03em;
  margin-bottom: 8px;
}
.cta-section p {
  color: rgba(255,255,255,0.5);
  font-size: 1rem; margin-bottom: 28px;
}
.cta-actions { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }

.page-top {
  padding: 90px 0 60px;
  background: var(--ink); color: #fff;
  position: relative;
}

.breadcrumb {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.8rem; color: rgba(255,255,255,0.4);
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.breadcrumb a { color: rgba(255,255,255,0.5); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { color: rgba(255,255,255,0.2); }
.page-top h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800; letter-spacing: -0.03em;
  margin-bottom: 12px;
}
.page-top p { color: rgba(255,255,255,0.5); font-size: 1rem; max-width: 440px; }

.accordion {
  max-width: 720px;
  margin: 0 auto;
}
.accordion-item {
  border: 1px solid var(--ink-10);
  border-radius: 10px;
  margin-bottom: 12px;
  overflow: hidden;
  background: #fff;
}
.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  transition: background 0.2s;
}
.accordion-header:hover {
  background: var(--ink-05);
}
.accordion-header.active {
  background: var(--accent-soft);
}
.accordion-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}
.accordion-brand-code {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--ink-40);
  letter-spacing: 0.05em;
}
.accordion-brand-name {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ink);
}
.accordion-meta {
  display: flex;
  align-items: center;
  gap: 16px;
}
.accordion-count {
  font-size: 0.8rem;
  color: var(--ink-40);
}
.accordion-arrow {
  width: 20px;
  height: 20px;
  transition: transform 0.3s var(--ease);
}
.accordion-header.active .accordion-arrow {
  transform: rotate(180deg);
}
.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s var(--ease);
}
.accordion-content.open {
  max-height: 2000px;
}
.accordion-inner {
  padding: 0 24px 20px;
  border-top: 1px solid var(--ink-10);
}
.model-list {
  padding-top: 16px;
}
.model-item {
  padding: 14px 0;
  border-bottom: 1px solid var(--ink-05);
}
.model-item:last-child {
  border-bottom: none;
}
.model-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.model-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
}
.model-year {
  font-size: 0.75rem;
  color: var(--ink-40);
}
.tutorial-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tutorial-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--ink-05);
  border-radius: 6px;
  font-size: 0.8rem;
  color: var(--ink-60);
  transition: all 0.2s;
}
.tutorial-link:hover {
  background: var(--accent-soft);
  color: var(--accent);
}
.tutorial-link svg {
  width: 14px;
  height: 14px;
}

.tut-layout {
  display: grid; grid-template-columns: 1fr 260px;
  gap: 40px; align-items: start;
}
.tut-main {
  background: #fff;
  border: 1px solid var(--ink-10);
  border-radius: var(--radius-lg);
  padding: 48px;
}
.tut-main h2 {
  font-family: var(--font-display);
  font-size: 1.6rem; font-weight: 800;
  letter-spacing: -0.02em; margin-bottom: 16px;
}
.tut-meta {
  display: flex; gap: 20px;
  padding-bottom: 20px; margin-bottom: 28px;
  border-bottom: 1px solid var(--ink-10);
  font-size: 0.8rem; color: var(--ink-40);
}
.tut-meta span { display: flex; align-items: center; gap: 5px; }
.tut-meta svg { width: 15px; height: 15px; fill: var(--ink-40); }

.tut-body h3 {
  font-size: 1.15rem; font-weight: 700;
  margin: 32px 0 14px; color: var(--ink);
}
.tut-body p {
  font-size: 0.925rem; color: var(--ink-60);
  line-height: 1.8; margin-bottom: 14px;
}
.tut-body ol {
  padding-left: 22px; margin-bottom: 14px;
}
.tut-body ol li {
  font-size: 0.925rem; color: var(--ink-60);
  line-height: 1.8; margin-bottom: 6px;
  list-style: decimal;
}
.tut-body ul {
  padding-left: 22px; margin-bottom: 14px;
}
.tut-body ul li {
  font-size: 0.925rem; color: var(--ink-60);
  line-height: 1.8; margin-bottom: 6px;
  list-style: disc;
}
.tut-body .tip {
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
  padding: 14px 18px; border-radius: 0 var(--radius) var(--radius) 0;
  margin: 20px 0;
}
.tut-body .tip strong { color: var(--accent); font-size: 0.85rem; display: block; margin-bottom: 4px; }
.tut-body .tip p { margin: 0; font-size: 0.85rem; }
.tut-body .img-placeholder {
  background: var(--ink-05);
  border: 1.5px dashed var(--ink-10);
  border-radius: var(--radius);
  padding: 48px 20px; text-align: center;
  color: var(--ink-40); font-size: 0.85rem;
  margin: 20px 0;
}
.tut-body img,
.tut-body video,
.tut-body iframe,
.tut-body embed {
  max-width: 100% !important;
  height: auto !important;
  border-radius: var(--radius);
  margin: 20px 0;
}
.tut-body video {
  max-height: 70vh;
  object-fit: contain;
}
.tut-body .wp-video {
  width: 100% !important;
}
.tut-body .wp-video video {
  width: 100% !important;
  height: auto !important;
}
.tut-body blockquote {
  border-left: 3px solid var(--ink-20);
  padding: 10px 18px;
  margin: 20px 0;
  color: var(--ink-60);
  background: var(--ink-05);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.tut-sidebar { position: sticky; top: 88px; }
.sidebar-box {
  background: #fff;
  border: 1px solid var(--ink-10);
  border-radius: var(--radius);
  padding: 20px; margin-bottom: 16px;
}
.sidebar-box h4 {
  font-size: 0.8rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--ink-40); margin-bottom: 12px;
}
.sidebar-box .sb-item {
  display: block; padding: 7px 10px;
  font-size: 0.85rem; color: var(--ink-60);
  border-radius: 6px; margin-bottom: 2px;
  transition: all 0.15s;
}
.sidebar-box .sb-item:hover, .sidebar-box .sb-item.active {
  background: var(--ink-05); color: var(--ink);
}
.sidebar-box .sb-item.active { font-weight: 600; color: var(--accent); }

.footer {
  background: var(--ink); color: rgba(255,255,255,0.5);
  padding: 48px 0 24px;
}
.footer-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
  display: grid; grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px; margin-bottom: 40px;
}
.footer-brand-name {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.1rem; font-weight: 700; color: #fff;
  margin-bottom: 12px;
}
.footer-brand-name .nav-logo-mark { background: var(--accent); }
.footer-brand p { font-size: 0.85rem; line-height: 1.7; max-width: 280px; }
.footer-col h4 {
  font-size: 0.8rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.06em;
  color: rgba(255,255,255,0.3); margin-bottom: 16px;
}
.footer-col a {
  display: block; font-size: 0.85rem;
  color: rgba(255,255,255,0.5); padding: 3px 0;
}
.footer-col a:hover { color: #fff; }
.footer-bottom {
  max-width: var(--max-w); margin: 0 auto; padding: 20px 24px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 0.8rem; text-align: center;
}

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-desc { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-visual { display: none; }
  .hero-visual-mobile { display: flex; justify-content: center; margin-top: 40px; }
  .headunit-mobile {
    width: 100%; max-width: 360px; height: 200px;
    background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
    border-radius: 14px; padding: 8px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.06);
  }
  .headunit-mobile .headunit-screen {
    border-radius: 8px;
    flex-direction: column; gap: 8px;
  }
  .headunit-mobile .headunit-screen-icon { width: 40px; height: 40px; border-radius: 10px; }
  .headunit-mobile .headunit-screen-icon svg { width: 20px; height: 20px; }
  .headunit-mobile .headunit-screen-info { text-align: center; }
  .headunit-mobile .headunit-screen-title { font-size: 0.95rem; }
  .headunit-mobile .headunit-screen-tag { display: none; }
  .hero-float { display: none; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2) { border-right: none; }
  .stat-item:nth-child(1), .stat-item:nth-child(2) { border-bottom: 1px solid var(--ink-10); }
  .download-grid { grid-template-columns: 1fr; max-width: 400px; }
  .bento-card.span-7, .bento-card.span-5, .bento-card.span-4, .bento-card.span-8 { grid-column: span 6; }
  .tut-layout { grid-template-columns: 1fr; }
  .tut-sidebar { position: static; }
  .tut-main { padding: 28px 20px; }
  .footer-inner { grid-template-columns: 1fr; gap: 24px; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: 64px; left: 0; right: 0;
    background: #fff; padding: 12px;
    border-bottom: 1px solid var(--ink-10);
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  }
  .nav-links.open .nav-link { color: var(--ink-60); }
  .nav-links.open .nav-link:hover { color: var(--ink); background: var(--ink-05); }
  .nav-links.open .nav-cta { background: var(--accent); color: #fff; margin: 8px 0 0; }
  .nav-toggle { display: flex; }
  .bento-card.span-7, .bento-card.span-5, .bento-card.span-4, .bento-card.span-8 { grid-column: span 12; }
  .section { padding: 64px 0; }
}

@media (max-width: 480px) {
  .stats-inner { grid-template-columns: 1fr 1fr; }
  .stat-item { padding: 20px 16px; }
  .stat-value { font-size: 1.4rem; }
}