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

:root {
  --bg-primary: #07070d;
  --bg-secondary: #0d0d1a;
  --bg-card: rgba(255,255,255,0.03);
  --bg-card-hover: rgba(255,255,255,0.06);
  --text-primary: #f0f0f5;
  --text-secondary: rgba(255,255,255,0.6);
  --text-muted: rgba(255,255,255,0.35);
  --border-color: rgba(255,255,255,0.06);
  --border-hover: rgba(255,255,255,0.12);
  --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --glow-purple: rgba(102,126,234,0.3);
  --glow-pink: rgba(240,147,251,0.2);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --font-sans: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
input, textarea {
  font-family: inherit;
  font-size: inherit;
  outline: none;
  border: none;
  background: transparent;
  color: var(--text-primary);
  width: 100%;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 120px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 60px;
}

.section-tag {
  display: inline-block;
  padding: 6px 18px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  background: rgba(102,126,234,0.1);
  color: #8b9cf7;
  border: 1px solid rgba(102,126,234,0.2);
  margin-bottom: 20px;
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,0.7) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(7,7,13,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  padding: 10px 0;
}

.navbar.hidden {
  transform: translateY(-100%);
}

.nav-inner {
  max-width: 1200px;
  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-size: 1.25rem;
  font-weight: 700;
}

.logo-icon {
  font-size: 1.5rem;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-text {
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.3s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-1);
  border-radius: 2px;
  transition: width 0.3s;
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(102,126,234,0.15) 0%, transparent 70%),
    radial-gradient(ellipse 60% 50% at 80% 80%, rgba(240,147,251,0.1) 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 10% 70%, rgba(0,242,254,0.06) 0%, transparent 50%);
  animation: bgShift 20s ease-in-out infinite alternate;
}

@keyframes bgShift {
  0% { transform: scale(1) rotate(0deg); }
  100% { transform: scale(1.1) rotate(3deg); }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(7,7,13,0.8) 80%, var(--bg-primary) 100%);
  pointer-events: none;
}

.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: rgba(255,255,255,0.3);
  border-radius: 50%;
  animation: float linear infinite;
}

@keyframes float {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 24px;
  max-width: 800px;
}

.hero-badge {
  display: inline-block;
  padding: 8px 24px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 500;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  margin-bottom: 32px;
  color: var(--text-secondary);
  letter-spacing: 0.08em;
}

.hero-title {
  margin-bottom: 24px;
}

.title-line {
  display: block;
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.title-line:first-child {
  background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,0.8) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.title-line.accent {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 40%, #f093fb 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-top: -0.15em;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-secondary);
  margin-bottom: 40px;
  letter-spacing: 0.05em;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-1);
  color: #fff;
  box-shadow: 0 4px 24px rgba(102,126,234,0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 40px rgba(102,126,234,0.5);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid rgba(255,255,255,0.15);
}

.btn-outline:hover {
  border-color: rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.05);
  transform: translateY(-2px);
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  animation: scrollBounce 2s ease-in-out infinite;
}

.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--text-muted);
  border-bottom: 2px solid var(--text-muted);
  transform: rotate(45deg);
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ===== ABOUT / STATS ===== */
.about {
  background: var(--bg-secondary);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-card {
  text-align: center;
  padding: 40px 24px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.stat-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.stat-number {
  display: block;
  font-size: 2.8rem;
  font-weight: 800;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  margin-bottom: 8px;
}

.stat-plus, .stat-percent {
  font-size: 1.5rem;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ===== PRODUCTS ===== */
.products {
  background: var(--bg-primary);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.product-card {
  position: relative;
  padding: 48px 32px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  overflow: hidden;
  isolation: isolate;
}

.product-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent);
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.card-glow {
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  opacity: 0;
  transition: opacity 0.6s;
  pointer-events: none;
  z-index: -1;
}

.product-card:hover .card-glow {
  opacity: 1;
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: #fff;
}

.card-icon svg {
  width: 28px;
  height: 28px;
}

.card-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.card-subtitle {
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 16px;
  font-weight: 500;
}

.card-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.card-tags span {
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.78rem;
  background: var(--accent-light);
  color: var(--accent);
  border: 1px solid var(--accent);
  opacity: 0.7;
}

.card-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  transition: gap 0.3s;
}

.card-btn:hover {
  gap: 8px;
}

/* ===== WECHAT ===== */
.wechat {
  background: var(--bg-secondary);
}

.wechat-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.wechat-info .section-tag {
  margin-bottom: 16px;
}

.wechat-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

.wf-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.wf-item:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
}

.wf-icon {
  font-size: 1.2rem;
}

.wechat-qr {
  display: flex;
  justify-content: center;
}

.qr-frame {
  padding: 32px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  text-align: center;
  transition: var(--transition);
}

.qr-frame:hover {
  border-color: var(--border-hover);
  transform: scale(1.02);
}

.qr-frame img {
  width: 240px;
  height: 240px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  object-fit: contain;
}

.qr-frame p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ===== CONTACT ===== */
.contact {
  background: var(--bg-primary);
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: start;
}

.contact-form {
  padding: 40px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
}

.form-group {
  position: relative;
  margin-bottom: 24px;
}

.form-group input,
.form-group textarea {
  padding: 16px 0 8px;
  border-bottom: 1px solid var(--border-color);
  transition: border-color 0.3s;
  resize: none;
  color: var(--text-primary);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--glow-purple);
}

.form-line {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-1);
  transition: width 0.4s;
}

.form-group input:focus ~ .form-line,
.form-group textarea:focus ~ .form-line {
  width: 100%;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.btn-submit {
  width: 100%;
  justify-content: center;
  margin-top: 12px;
  position: relative;
}

.btn-submit.loading .btn-text { opacity: 0; }
.btn-submit.loading .btn-loader {
  display: block;
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.btn-loader { display: none; }

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 40px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
}

.ci-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.ci-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
}

.ci-item strong {
  display: block;
  margin-bottom: 4px;
  font-size: 0.9rem;
  font-weight: 600;
}

.ci-item p {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 60px 0 32px;
  background: var(--bg-secondary);
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  margin-bottom: 40px;
}

.footer-logo {
  font-size: 1.2rem;
  font-weight: 700;
}

.footer-brand p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-top: 8px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.fl-col h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.fl-col a {
  display: block;
  font-size: 0.88rem;
  color: var(--text-secondary);
  padding: 4px 0;
  transition: color 0.3s;
}

.fl-col a:hover {
  color: var(--text-primary);
}

.footer-divider {
  height: 1px;
  background: var(--border-color);
  margin-bottom: 24px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.icp-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color 0.3s;
}

.icp-link:hover {
  color: var(--text-secondary);
}

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9998;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  background: linear-gradient(135deg, #1a1a2e, #16213e);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 40px;
  max-width: 360px;
  width: 90%;
  position: relative;
  transform: scale(0.9) translateY(20px);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 24px 80px rgba(0,0,0,0.5);
}

.modal-overlay.open .modal {
  transform: scale(1) translateY(0);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--text-secondary);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  transition: var(--transition);
}

.modal-close:hover {
  background: rgba(255,255,255,0.1);
  color: var(--text-primary);
}

.modal-body {
  text-align: center;
}

.modal-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 24px;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.modal-qr {
  padding: 16px;
  background: #fff;
  border-radius: var(--radius-md);
  display: inline-block;
  margin-bottom: 16px;
}

.modal-qr img {
  width: 220px;
  height: 220px;
  display: block;
  object-fit: contain;
}

.modal-hint {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ===== TOAST ===== */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--text-primary);
  opacity: 0;
  transition: all 0.4s;
  z-index: 10000;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast.error {
  border-color: rgba(245,108,108,0.3);
  background: rgba(245,108,108,0.1);
  color: #f56c6c;
}

.toast.success {
  border-color: rgba(82,196,26,0.3);
  background: rgba(82,196,26,0.1);
  color: #52c41a;
}

/* ===== FADE-IN ANIMATION ===== */
.fade-in {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    flex-direction: column;
    background: rgba(7,7,13,0.95);
    backdrop-filter: blur(20px);
    padding: 80px 32px 32px;
    gap: 8px;
    border-left: 1px solid var(--border-color);
    transition: right 0.4s;
  }

  .nav-links.open { right: 0; }

  .nav-links a {
    padding: 12px 0;
    font-size: 1rem;
    border-bottom: 1px solid var(--border-color);
  }

  .nav-toggle { display: flex; }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  .nav-toggle.active span:nth-child(2) { opacity: 0; }
  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero-title .title-line:first-child {
    font-size: clamp(2.5rem, 10vw, 3.5rem);
  }

  .products-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .stat-card {
    padding: 24px 16px;
  }

  .stat-number {
    font-size: 2rem;
  }

  .wechat-wrapper {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .wechat-features {
    grid-template-columns: 1fr;
  }

  .contact-wrapper {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .contact-form {
    padding: 24px;
  }

  .contact-info {
    padding: 24px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }

  .section {
    padding: 80px 0;
  }

  .qr-frame img {
    width: 200px;
    height: 200px;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .footer-links {
    grid-template-columns: 1fr;
  }
}

/* ===== 2026 BRAND REFRESH · WARM BEAUTY SYSTEM ===== */
:root {
  --bg-primary: #fbf8f4;
  --bg-secondary: #f3ece5;
  --bg-card: rgba(255, 255, 255, 0.76);
  --bg-card-hover: #fff;
  --text-primary: #302522;
  --text-secondary: #746561;
  --text-muted: #a49691;
  --border-color: rgba(91, 68, 62, 0.12);
  --border-hover: rgba(141, 81, 78, 0.32);
  --gradient-1: linear-gradient(135deg, #7e4846 0%, #a96761 100%);
  --gradient-2: linear-gradient(135deg, #b58a62 0%, #d3b18d 100%);
  --glow-purple: rgba(141, 81, 78, 0.25);
  --glow-pink: rgba(211, 177, 141, 0.25);
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --radius-xl: 40px;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-display: "Songti SC", "STSong", "SimSun", serif;
  --transition: .35s cubic-bezier(.2,.65,.3,1);
}

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
}

body.menu-open { overflow: hidden; }

::selection {
  color: #fff;
  background: #8d514e;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(141, 81, 78, .28);
  outline-offset: 4px;
}

.section { padding: 112px 0; }
.section-header { max-width: 720px; }
.section-tag {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: #9a625d;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .2em;
}
.section-title {
  color: var(--text-primary);
  background: none;
  -webkit-text-fill-color: currentColor;
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 4.8vw, 3.75rem);
  font-weight: 700;
  letter-spacing: .03em;
}
.section-desc { color: var(--text-secondary); }
.align-left { text-align: left; }

/* Brand navigation */
.navbar { padding: 20px 0; }
.navbar.scrolled {
  padding: 10px 0;
  background: rgba(251, 248, 244, .9);
  border-color: rgba(91, 68, 62, .08);
  box-shadow: 0 10px 40px rgba(74, 49, 43, .06);
}
.navbar.hidden { transform: none; }
.nav-logo { gap: 12px; }
.logo-icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--gradient-1);
  -webkit-text-fill-color: currentColor;
  font-family: var(--font-display);
  font-size: 1.2rem;
  box-shadow: 0 8px 22px rgba(126, 72, 70, .22);
}
.logo-lockup { display: flex; flex-direction: column; line-height: 1.05; }
.logo-text {
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 700;
  letter-spacing: .12em;
}
.logo-lockup small {
  margin-top: 5px;
  color: #a98f88;
  font-size: .52rem;
  font-weight: 700;
  letter-spacing: .28em;
}
.nav-links a { color: #665752; }
.nav-links a::after { background: #8d514e; }
.nav-links a:hover { color: #8d514e; }
.nav-toggle span { background: var(--text-primary); }
.nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 998;
  background: rgba(48, 37, 34, .28);
  backdrop-filter: blur(3px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s;
}
.nav-backdrop.open { opacity: 1; pointer-events: auto; }

/* Editorial hero */
.hero {
  min-height: 860px;
  background: #f7f0e9;
}
.hero-bg {
  background:
    radial-gradient(circle at 15% 20%, rgba(181, 138, 98, .18), transparent 28%),
    radial-gradient(circle at 85% 70%, rgba(141, 81, 78, .17), transparent 30%),
    linear-gradient(135deg, #fbf8f4 0%, #f3e7dc 54%, #efe2dc 100%);
  animation: none;
}
.hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .2;
  background-image:
    linear-gradient(rgba(91,68,62,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91,68,62,.08) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, #000, transparent 88%);
}
.hero-overlay {
  background: linear-gradient(180deg, transparent 55%, rgba(251,248,244,.92) 92%, var(--bg-primary));
}
.hero-content { max-width: 940px; }
.hero-eyebrow {
  margin-bottom: 30px;
  color: #956c63;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .28em;
}
.hero-title { margin-bottom: 28px; }
.title-line {
  color: #382a27;
  font-family: var(--font-display);
  font-size: clamp(3.6rem, 8vw, 7rem);
  font-weight: 700;
  letter-spacing: .04em;
}
.title-line:first-child,
.title-line.accent {
  color: #382a27;
  background: none;
  -webkit-text-fill-color: currentColor;
}
.title-line.accent {
  margin-top: .02em;
  color: #8d514e;
  font-size: clamp(3.6rem, 8vw, 7rem);
}
.hero-subtitle {
  max-width: 650px;
  margin: 0 auto 38px;
  color: #75625d;
  font-size: clamp(1rem, 2vw, 1.2rem);
  line-height: 1.9;
  letter-spacing: .05em;
}
.btn { border-radius: 4px; padding: 15px 30px; }
.btn-primary {
  background: var(--gradient-1);
  box-shadow: 0 12px 30px rgba(126, 72, 70, .2);
}
.btn-primary:hover { box-shadow: 0 16px 38px rgba(126,72,70,.28); }
.btn-outline {
  color: #5f4d48;
  border-color: rgba(95, 77, 72, .3);
  background: rgba(255,255,255,.28);
}
.btn-outline:hover {
  border-color: #8d514e;
  background: rgba(255,255,255,.72);
}
.hero-proof {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 18px;
  margin-top: 42px;
  color: #8d7a74;
  font-size: .78rem;
  letter-spacing: .08em;
}
.hero-proof i {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: #a96761;
}
.hero-scroll {
  z-index: 3;
  bottom: 30px;
  gap: 10px;
  color: #8f7a74;
  transition: color .25s;
}
.hero-scroll:hover { color: #8d514e; }
.scroll-line {
  position: relative;
  width: 1px;
  height: 34px;
  overflow: hidden;
  background: rgba(141, 81, 78, .22);
}
.scroll-line::after {
  content: "";
  position: absolute;
  inset: 0;
  background: #8d514e;
  transform: translateY(-100%);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { transform: translateY(-100%); }
  50%, 100% { transform: translateY(100%); }
}
.hero-orbit {
  position: absolute;
  border: 1px solid rgba(141, 81, 78, .15);
  border-radius: 50%;
  pointer-events: none;
}
.orbit-one { width: 410px; height: 410px; left: -190px; top: 22%; }
.orbit-two { width: 540px; height: 540px; right: -280px; bottom: -5%; }

/* Stats */
.about { background: var(--bg-primary); }
.stats-grid { gap: 0; border-block: 1px solid var(--border-color); }
.stat-card {
  padding: 38px 20px;
  border: 0;
  border-right: 1px solid var(--border-color);
  border-radius: 0;
  background: transparent;
}
.stat-card:last-child { border-right: 0; }
.stat-card:hover { background: rgba(141,81,78,.035); transform: none; }
.stat-number {
  color: #8d514e;
  background: none;
  -webkit-text-fill-color: currentColor;
  font-family: var(--font-display);
  font-size: 3.1rem;
  font-weight: 700;
}

/* Product editorial cards */
.products { background: #f3ece5; }
.products-grid { gap: 22px; }
.product-card {
  min-height: 470px;
  padding: 46px 34px 36px;
  border-color: rgba(91,68,62,.10);
  border-radius: 3px;
  background: rgba(255,255,255,.58);
  box-shadow: 0 18px 45px rgba(72, 50, 44, .05);
}
.product-card:hover {
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 24px 60px rgba(72,50,44,.1);
}
.card-index {
  position: absolute;
  top: 28px;
  right: 30px;
  color: rgba(76,58,53,.16);
  font-family: var(--font-display);
  font-size: 2.3rem;
}
.card-glow {
  top: auto;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 4px;
  opacity: 1;
  background: var(--accent);
}
.card-icon {
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 10px 28px color-mix(in srgb, var(--accent) 25%, transparent);
}
.card-title { font-family: var(--font-display); font-size: 1.8rem; }
.card-desc { min-height: 96px; }
.card-tags span { border: 0; opacity: 1; }
.card-btn {
  border: 0;
  padding: 0;
  color: var(--accent);
  background: transparent;
}
.card-btn span { transition: transform .25s; }
.card-btn:hover span { transform: translateX(4px); }

/* WeChat */
.wechat { background: #39302d; color: #f8f1eb; }
.wechat .section-title { color: #fff7f0; }
.wechat .section-desc { color: rgba(255,255,255,.65); }
.wechat .section-tag { color: #d4af8b; }
.wf-item {
  color: rgba(255,255,255,.72);
  border-color: rgba(255,255,255,.1);
  background: rgba(255,255,255,.04);
}
.wf-item:hover { background: rgba(255,255,255,.08); }
.qr-frame {
  padding: 20px 20px 18px;
  border-color: rgba(255,255,255,.12);
  border-radius: 4px;
  background: #fffaf5;
  box-shadow: 0 24px 60px rgba(0,0,0,.22);
}
.qr-frame p { color: #6e5b55; }

/* Contact */
.contact { background: var(--bg-primary); }
.contact-wrapper { grid-template-columns: 1.15fr .85fr; }
.contact-form,
.contact-info {
  border-color: var(--border-color);
  border-radius: 4px;
  background: #fff;
  box-shadow: 0 18px 50px rgba(72,50,44,.055);
}
.form-group label {
  display: block;
  color: #594a46;
  font-size: .82rem;
  font-weight: 700;
}
.form-group input,
.form-group textarea {
  color: var(--text-primary);
  border-color: rgba(91,68,62,.15);
}
.form-line { background: #8d514e; }
.contact-info {
  min-height: 100%;
  justify-content: center;
  padding: 52px 44px;
  background: linear-gradient(145deg, #8d514e, #6e403e);
  color: #fff;
}
.contact-kicker {
  color: #e2bbaa;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .18em;
}
.contact-info h3 {
  font-family: var(--font-display);
  font-size: 2rem;
  line-height: 1.45;
}
.contact-copy { color: rgba(255,255,255,.68); }
.ci-item {
  margin-top: 18px;
  padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,.15);
}
.ci-icon {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 50%;
  font-family: var(--font-display);
}
.ci-item p { color: rgba(255,255,255,.7); }

/* Footer + modal */
.footer { background: #2e2826; color: #f8f0ea; border: 0; }
.footer-logo b {
  display: inline-grid;
  width: 30px;
  height: 30px;
  margin-right: 8px;
  place-items: center;
  border-radius: 50%;
  background: #8d514e;
  font-family: var(--font-display);
}
.footer-brand p,
.fl-col a,
.footer-product-link { color: rgba(255,255,255,.55); }
.footer-product-link {
  display: block;
  padding: 4px 0;
  font-size: .88rem;
  transition: color .3s;
}
.footer-product-link:hover,
.fl-col a:hover { color: #fff; }
.footer-divider { background: rgba(255,255,255,.08); }
.modal-overlay { background: rgba(48,37,34,.58); }
.modal {
  color: var(--text-primary);
  border-color: var(--border-color);
  border-radius: 4px;
  background: #fffaf6;
}
.modal-title {
  color: #8d514e;
  background: none;
  -webkit-text-fill-color: currentColor;
  font-family: var(--font-display);
}
.modal-close {
  color: #75625d;
  border-color: var(--border-color);
  background: rgba(141,81,78,.05);
}
.toast {
  color: var(--text-primary);
  border-color: var(--border-color);
  background: rgba(255,250,246,.94);
}

@media (max-width: 768px) {
  .section { padding: 82px 0; }
  .navbar { padding: 12px 0; }
  .nav-links {
    z-index: 999;
    background: #fffaf6;
    border-color: var(--border-color);
    box-shadow: -16px 0 45px rgba(48,37,34,.12);
  }
  .nav-links a { color: var(--text-primary); }
  .nav-toggle { position: relative; z-index: 1000; }
  .hero { min-height: 760px; }
  .hero-title .title-line:first-child,
  .hero-title .title-line.accent { font-size: clamp(2.8rem, 13vw, 4rem); }
  .hero-proof { gap: 10px; flex-wrap: wrap; }
  .hero-proof i { display: none; }
  .hero-proof span { padding: 5px 10px; border: 1px solid var(--border-color); }
  .stats-grid { border-block: 0; }
  .stat-card { border: 1px solid var(--border-color); }
  .stat-card:last-child { border-right: 1px solid var(--border-color); }
  .product-card { min-height: 0; }
  .card-desc { min-height: 0; }
  .contact-wrapper { grid-template-columns: 1fr; }
  .contact-info { min-height: 360px; }
}

@media (max-width: 480px) {
  .container { padding-inline: 18px; }
  .logo-icon { width: 36px; height: 36px; }
  .hero-eyebrow { font-size: .62rem; letter-spacing: .18em; }
  .hero-subtitle { padding-inline: 8px; }
  .hero-scroll { display: none; }
  .section-title { font-size: 2.25rem; }
  .product-card { padding: 38px 26px 30px; }
  .contact-info { padding: 38px 28px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}