:root {
  --sgb-bg: #f9f7f2;
  --sgb-card: #fffcf7;
  --sgb-input-bg: #f3ede4;
  --sgb-border: #ede6da;
  --sgb-orange: #ff9d3d;
  --sgb-orange-light: #fff4e6;
  --sgb-orange-dark: #e8922f;
  --sgb-brown: #4a3728;
  --sgb-brown-light: #7a6656;
  --sgb-muted: #9a8878;
  --sgb-green: #94b063;
  --sgb-green-light: #eff6e8;
  --sgb-blue: #8db9de;
  --sgb-blue-light: #e8f3fa;
  --sgb-pink: #e49db2;
  --sgb-pink-light: #faecf0;
  --sgb-yellow: #f5c842;
  --sgb-yellow-light: #fff8e1;
  --sgb-purple: #b8a0d4;
  --sgb-purple-light: #f3eef9;
  --sgb-danger: #d97070;
  --radius: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;
  --shadow: 0 4px 20px rgba(74, 55, 40, 0.06);
  --shadow-lg: 0 12px 40px rgba(74, 55, 40, 0.1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", sans-serif;
  color: var(--sgb-brown);
  background: var(--sgb-bg);
  line-height: 1.65;
}

a { color: inherit; text-decoration: none; }

img { max-width: 100%; display: block; }

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(255, 252, 247, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--sgb-border);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 20px;
  color: var(--sgb-brown);
  flex-shrink: 0;
}

.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(145deg, var(--sgb-orange), var(--sgb-orange-dark));
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 18px;
  box-shadow: 0 4px 12px rgba(255, 157, 61, 0.35);
}

.brand-icon-sm {
  width: 36px;
  height: 36px;
  font-size: 15px;
  border-radius: 12px;
}

.brand-logo,
.footer-logo {
  width: var(--site-logo-size, 40px);
  height: var(--site-logo-size, 40px);
  max-width: var(--site-logo-size, 40px);
  max-height: var(--site-logo-size, 40px);
  border-radius: 14px;
  object-fit: contain;
  flex-shrink: 0;
  display: block;
}

.brand-logo-full {
  height: 46px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  flex-shrink: 0;
  display: block;
}

.footer-logo {
  border-radius: 12px;
  width: calc(var(--site-logo-size, 40px) * 0.9);
  height: calc(var(--site-logo-size, 40px) * 0.9);
  max-width: calc(var(--site-logo-size, 40px) * 0.9);
  max-height: calc(var(--site-logo-size, 40px) * 0.9);
}

.site-nav {
  display: flex;
  gap: 8px;
  margin-left: auto;
}

.site-nav a {
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  color: var(--sgb-muted);
  font-weight: 500;
  font-size: 15px;
  transition: 0.2s ease;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--sgb-orange-dark);
  background: var(--sgb-orange-light);
}

.header-cta { flex-shrink: 0; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  margin-left: auto;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--sgb-brown);
  border-radius: 2px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 15px;
  border: 2px solid transparent;
  transition: 0.2s ease;
  cursor: pointer;
}

.btn-sm { padding: 10px 20px; font-size: 14px; }

.btn-primary {
  background: var(--sgb-orange);
  color: #fff;
  box-shadow: 0 4px 16px rgba(255, 157, 61, 0.35);
}

.btn-primary:hover {
  background: var(--sgb-orange-dark);
  transform: translateY(-1px);
}

.btn-outline {
  background: var(--sgb-card);
  color: var(--sgb-orange-dark);
  border-color: var(--sgb-orange);
}

.btn-outline:hover {
  background: var(--sgb-orange-light);
}

.btn-white {
  background: #fff;
  color: var(--sgb-orange-dark);
}

.btn-white:hover { background: var(--sgb-orange-light); }

.btn-ghost-white {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.6);
}

.btn-ghost-white:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
}

.btn-disabled {
  background: var(--sgb-border);
  color: var(--sgb-muted);
  cursor: not-allowed;
}

/* Hero */
.hero {
  padding: 72px 0 56px;
  background: linear-gradient(165deg, #fff8ef 0%, var(--sgb-bg) 55%);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.hero-badge,
.page-badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: var(--sgb-orange-light);
  color: var(--sgb-orange-dark);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
  border: 1px solid #f5c882;
}

.hero-content h1 {
  font-size: clamp(36px, 5vw, 52px);
  line-height: 1.15;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.hero-slogan {
  font-size: 22px;
  color: var(--sgb-orange);
  font-weight: 600;
  margin-bottom: 16px;
}

.hero-desc {
  color: var(--sgb-brown-light);
  max-width: 520px;
  margin-bottom: 28px;
  font-size: 16px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
}

.tag-orange { color: var(--sgb-orange-dark); background: var(--sgb-orange-light); }
.tag-green { color: var(--sgb-green); background: var(--sgb-green-light); }
.tag-purple { color: var(--sgb-purple); background: var(--sgb-purple-light); }
.tag-blue { color: #6ba3c9; background: var(--sgb-blue-light); }

/* Phone mock */
.phone-mock {
  width: min(300px, 100%);
  margin: 0 auto;
  padding: 12px;
  border-radius: 36px;
  background: var(--sgb-brown);
  box-shadow: var(--shadow-lg);
}

.phone-notch {
  width: 80px;
  height: 6px;
  margin: 0 auto 8px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.15);
}

.phone-screen {
  background: var(--sgb-bg);
  border-radius: 28px;
  padding: 16px 14px 12px;
  min-height: 440px;
  display: flex;
  flex-direction: column;
}

.mock-status {
  text-align: center;
  font-size: 11px;
  color: var(--sgb-muted);
  margin-bottom: 8px;
}

.mock-header {
  font-weight: 700;
  font-size: 17px;
  margin-bottom: 16px;
  color: var(--sgb-brown);
}

.mock-card {
  padding: 14px;
  border-radius: 14px;
  background: var(--sgb-card);
  border: 1px solid var(--sgb-border);
  margin-bottom: 10px;
}

.mock-card strong {
  display: block;
  font-size: 14px;
  margin-bottom: 4px;
}

.mock-card span {
  font-size: 12px;
  color: var(--sgb-muted);
}

.mock-card-accent {
  background: var(--sgb-orange-light);
  border-color: #f5c882;
}

.mock-tabbar {
  margin-top: auto;
  display: flex;
  justify-content: space-around;
  padding: 10px 4px 4px;
  border-top: 1px solid var(--sgb-border);
  font-size: 10px;
  color: var(--sgb-muted);
}

.mock-tabbar .active {
  color: var(--sgb-orange);
  font-weight: 600;
}

/* Sections */
.section { padding: 72px 0; }
.section-compact { padding: 48px 0; }
.section-muted { background: var(--sgb-card); border-top: 1px solid var(--sgb-border); border-bottom: 1px solid var(--sgb-border); }

.section-head {
  text-align: center;
  margin-bottom: 40px;
}

.section-title {
  font-size: 32px;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}

.section-sub {
  color: var(--sgb-muted);
  font-size: 16px;
}

.section-action {
  text-align: center;
  margin-top: 36px;
}

/* Module strip */
.module-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.module-item {
  padding: 24px 20px;
  background: var(--sgb-card);
  border: 1px solid var(--sgb-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  text-align: center;
  transition: 0.2s ease;
}

.module-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.module-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 14px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 18px;
  color: #fff;
}

.module-orange { background: linear-gradient(145deg, var(--sgb-orange), var(--sgb-orange-dark)); }
.module-pink { background: linear-gradient(145deg, var(--sgb-pink), #d4889e); }
.module-green { background: linear-gradient(145deg, var(--sgb-green), #7a9a4a); }
.module-purple { background: linear-gradient(145deg, var(--sgb-purple), #9a82b8); }

.module-item h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.module-item p {
  font-size: 13px;
  color: var(--sgb-muted);
  line-height: 1.55;
}

/* Features */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.feature-grid-large {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.feature-card {
  background: var(--sgb-card);
  border: 1px solid var(--sgb-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow);
  transition: 0.2s ease;
}

.feature-card:hover {
  border-color: #f5c882;
  transform: translateY(-2px);
}

.feature-card-large { padding: 32px 28px; }

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 18px;
}

.feat-orange { color: var(--sgb-orange-dark); background: var(--sgb-orange-light); }
.feat-green { color: var(--sgb-green); background: var(--sgb-green-light); }
.feat-pink { color: var(--sgb-pink); background: var(--sgb-pink-light); }
.feat-purple { color: var(--sgb-purple); background: var(--sgb-purple-light); }
.feat-yellow { color: #c9a020; background: var(--sgb-yellow-light); }
.feat-blue { color: #6ba3c9; background: var(--sgb-blue-light); }
.feat-brown { color: var(--sgb-brown); background: var(--sgb-input-bg); }

.feature-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--sgb-brown-light);
  font-size: 15px;
}

.feature-group {
  margin-bottom: 48px;
}

.feature-group:last-child { margin-bottom: 0; }

.feature-group-head {
  margin-bottom: 24px;
}

.feature-group-head h2 {
  font-size: 26px;
  margin: 10px 0 6px;
}

.feature-group-head p {
  color: var(--sgb-muted);
}

.group-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 700;
}

.group-orange { color: var(--sgb-orange-dark); background: var(--sgb-orange-light); }
.group-pink { color: var(--sgb-pink); background: var(--sgb-pink-light); }
.group-purple { color: var(--sgb-purple); background: var(--sgb-purple-light); }

.cap-list {
  list-style: none;
  display: grid;
  gap: 10px;
}

.cap-list-cols {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.cap-list li {
  padding: 12px 16px 12px 36px;
  background: var(--sgb-bg);
  border-radius: var(--radius);
  border: 1px solid var(--sgb-border);
  font-size: 14px;
  color: var(--sgb-brown-light);
  position: relative;
}

.cap-list li::before {
  content: "✓";
  position: absolute;
  left: 14px;
  color: var(--sgb-orange);
  font-weight: 700;
}

/* Steps */
.steps-row {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.step-item {
  flex: 1;
  min-width: 200px;
  max-width: 280px;
  text-align: center;
  padding: 28px 20px;
  background: var(--sgb-card);
  border: 1px solid var(--sgb-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.step-num {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--sgb-orange);
  color: #fff;
  font-weight: 700;
  margin-bottom: 14px;
}

.step-item h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.step-item p {
  font-size: 14px;
  color: var(--sgb-muted);
}

.step-arrow {
  align-self: center;
  color: var(--sgb-orange);
  font-size: 24px;
  font-weight: 300;
}

/* Banners */
.banner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.banner-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--sgb-border);
  background: var(--sgb-card);
  box-shadow: var(--shadow);
}

.banner-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.banner-placeholder {
  height: 180px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--sgb-orange-light), var(--sgb-purple-light));
  color: var(--sgb-orange-dark);
  font-weight: 600;
}

.banner-body { padding: 16px 20px; }
.banner-body h3 { font-size: 16px; }

/* CTA */
.cta-section { padding-bottom: 88px; }

.cta-box {
  text-align: center;
  padding: 56px 32px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--sgb-orange) 0%, #e8922f 50%, #d4889e 100%);
  color: #fff;
  box-shadow: 0 16px 48px rgba(255, 157, 61, 0.3);
}

.cta-box h2 {
  font-size: 28px;
  margin-bottom: 12px;
}

.cta-box p {
  margin-bottom: 28px;
  opacity: 0.95;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-inline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 36px 40px;
  background: var(--sgb-card);
  border: 1px solid var(--sgb-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.cta-inline h2 { font-size: 24px; margin-bottom: 6px; }
.cta-inline p { color: var(--sgb-muted); font-size: 15px; }

/* Page hero */
.page-hero {
  padding: 56px 0 40px;
  background: linear-gradient(165deg, #fff8ef 0%, var(--sgb-bg) 100%);
  border-bottom: 1px solid var(--sgb-border);
}

.page-hero h1 {
  font-size: clamp(32px, 4vw, 42px);
  margin-bottom: 12px;
}

.page-hero p {
  color: var(--sgb-brown-light);
  max-width: 640px;
  font-size: 16px;
}

.page-back {
  display: inline-block;
  margin-bottom: 16px;
  color: var(--sgb-muted);
  font-size: 14px;
}

.page-back:hover { color: var(--sgb-orange); }

.page-meta {
  color: var(--sgb-muted);
  font-size: 14px;
  margin-top: 8px;
}

/* Download */
.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.download-card {
  padding: 32px 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--sgb-border);
  background: var(--sgb-card);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.download-card-primary {
  border-color: #f5c882;
  background: linear-gradient(180deg, var(--sgb-orange-light) 0%, var(--sgb-card) 100%);
}

.download-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--sgb-orange);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 16px;
}

.download-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.download-card p {
  color: var(--sgb-brown-light);
  font-size: 14px;
  margin-bottom: 8px;
}

.download-note {
  font-size: 13px !important;
  color: var(--sgb-muted) !important;
  margin-bottom: 16px !important;
}

.download-card .btn { margin-top: auto; }

.qrcode {
  width: 140px;
  height: 140px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--sgb-border);
  margin-top: 8px;
}

.qrcode-placeholder {
  width: 140px;
  height: 140px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--sgb-input-bg);
  color: var(--sgb-muted);
  font-size: 13px;
  text-align: center;
  padding: 12px;
  margin-top: 8px;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.faq-item {
  padding: 24px;
  background: var(--sgb-bg);
  border: 1px solid var(--sgb-border);
  border-radius: var(--radius);
}

.faq-item h4 {
  font-size: 16px;
  margin-bottom: 8px;
  color: var(--sgb-brown);
}

.faq-item p {
  font-size: 14px;
  color: var(--sgb-brown-light);
}

.faq-item a {
  color: var(--sgb-orange);
  text-decoration: underline;
}

/* Rich content */
.rich-content {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px;
  background: var(--sgb-card);
  border: 1px solid var(--sgb-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  font-size: 16px;
  line-height: 1.85;
  color: var(--sgb-brown-light);
}

.rich-content h1,
.rich-content h2,
.rich-content h3 {
  color: var(--sgb-brown);
  margin: 1.5em 0 0.75em;
}

.rich-content p { margin-bottom: 1em; }

.rich-content ul,
.rich-content ol {
  margin: 0 0 1em 1.5em;
}

.rich-content a {
  color: var(--sgb-orange);
  text-decoration: underline;
}

.rich-content img {
  max-width: 100%;
  border-radius: 12px;
}

/* Legal */
.legal-list {
  max-width: 720px;
  margin: 0 auto;
  display: grid;
  gap: 12px;
}

.legal-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border: 1px solid var(--sgb-border);
  border-radius: var(--radius);
  background: var(--sgb-card);
  box-shadow: var(--shadow);
  font-weight: 600;
  transition: 0.2s ease;
}

.legal-item:hover {
  border-color: #f5c882;
  color: var(--sgb-orange-dark);
  transform: translateX(4px);
}

.legal-arrow { color: var(--sgb-muted); }

/* Contact */
.contact-layout {
  display: grid;
  gap: 24px;
  max-width: 960px;
  margin: 0 auto;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: start;
}

.contact-card-main { min-width: 0; }

.contact-card-qr {
  text-align: center;
  min-width: 220px;
}

.contact-qr-tip {
  font-size: 14px;
  color: var(--sgb-muted);
  margin-bottom: 16px;
}

.contact-value-text {
  color: var(--sgb-brown);
  font-weight: 500;
  text-align: right;
  word-break: break-word;
}

.qrcode-lg {
  width: 180px;
  height: 180px;
  margin: 0 auto;
}

.contact-card {
  padding: 32px;
  background: var(--sgb-card);
  border: 1px solid var(--sgb-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.contact-card h2 {
  margin-bottom: 20px;
  font-size: 22px;
}

.contact-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--sgb-border);
}

.contact-row:last-child { border-bottom: none; }

.contact-label { color: var(--sgb-muted); }

.contact-value {
  color: var(--sgb-orange);
  font-weight: 600;
}

.contact-content {
  border: none;
  box-shadow: none;
  padding: 0;
  background: transparent;
}

.empty-tip {
  color: var(--sgb-muted);
  text-align: center;
  grid-column: 1 / -1;
  padding: 40px 0;
}

/* Footer */
.site-footer {
  padding: 56px 0 0;
  background: var(--sgb-brown);
  color: #e8dfd4;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 40px;
}

.footer-brand strong {
  font-size: 18px;
  color: #fff;
}

.footer-logo-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.footer-logo-wrap {
  display: inline-flex;
  align-items: center;
  padding: 10px 16px;
  background: rgba(255, 252, 247, 0.96);
  border-radius: 14px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.footer-logo-full {
  height: 44px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  display: block;
}

.footer-slogan {
  color: var(--sgb-orange);
  font-weight: 500;
  margin-bottom: 8px;
  font-size: 14px;
}

.footer-desc {
  font-size: 13px;
  opacity: 0.75;
  line-height: 1.6;
}

.footer-col h4 {
  color: #fff;
  font-size: 14px;
  margin-bottom: 14px;
}

.footer-col a,
.footer-col span {
  display: block;
  font-size: 14px;
  color: #c9b9a8;
  margin-bottom: 10px;
  transition: 0.2s;
}

.footer-col a:hover { color: var(--sgb-orange); }

.footer-muted { opacity: 0.6; }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
}

.copyright {
  font-size: 13px;
  opacity: 0.55;
  text-align: center;
}

.footer-icp {
  margin-top: 8px;
  font-size: 12px;
  opacity: 0.5;
  text-align: center;
}

.footer-icp a {
  color: inherit;
  text-decoration: none;
}

.footer-icp a:hover {
  opacity: 0.85;
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 960px) {
  .module-strip { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; max-width: 280px; margin: 0 auto; }
  .step-arrow { display: none; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .header-cta { display: none; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-card-qr { min-width: 0; }

  .site-nav {
    position: fixed;
    inset: 72px 0 auto 0;
    flex-direction: column;
    background: var(--sgb-card);
    border-bottom: 1px solid var(--sgb-border);
    padding: 16px;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: 0.25s ease;
    box-shadow: var(--shadow-lg);
  }

  body.nav-open .site-nav {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .site-nav a {
    padding: 14px 16px;
    border-radius: var(--radius);
  }

  .section { padding: 48px 0; }
  .module-strip { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .cta-inline { flex-direction: column; text-align: center; }
}