/* ============================================================
   甄柏懿科技官网 - 全局样式
   ============================================================ */

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* 浅檀杏色主题 — 升级版 */
  --green-primary: #0d9e6a;
  --green-light:   #10b981;
  --green-deep:    #047857;
  --cyan-primary:  #0891b2;
  --amber-accent:  #b45309;
  --amber-light:   #d97706;
  --purple-accent: #7c5cbf;

  --bg-base:       #F5EFE0;
  --bg-section:    #EDE5CF;
  --bg-card:       rgba(255,255,255,0.75);
  --bg-card-hover: rgba(255,255,255,0.95);
  --bg-input:      rgba(255,255,255,0.80);

  --border:        rgba(150,120,80,0.14);
  --border-hover:  rgba(13,158,106,0.35);
  --border-glow:   rgba(13,158,106,0.28);

  --text-primary:   #1A0E04;
  --text-secondary: #56412A;
  --text-muted:     #9A7C5A;
  --text-on-green:  #ffffff;

  --gradient-green:  linear-gradient(135deg, #0d9e6a 0%, #0891b2 100%);
  --gradient-warm:   linear-gradient(135deg, #c9963a 0%, #b45309 100%);
  --gradient-card:   linear-gradient(145deg, rgba(255,255,255,0.9) 0%, rgba(255,255,255,0.6) 100%);

  --shadow-sm:   0 2px 8px rgba(100,70,20,0.08);
  --shadow-card: 0 4px 20px rgba(100,70,20,0.10), 0 1px 3px rgba(100,70,20,0.06);
  --shadow-hover: 0 12px 40px rgba(100,70,20,0.16), 0 4px 12px rgba(100,70,20,0.08);
  --shadow-glow:  0 0 0 1px rgba(13,158,106,0.2), 0 8px 32px rgba(13,158,106,0.18);
  --shadow-btn:   0 4px 16px rgba(13,158,106,0.30);

  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  --transition:   0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  font-family: 'Noto Sans SC', 'Inter', -apple-system, sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #e8deca; }
::-webkit-scrollbar-thumb { background: rgba(13,158,106,0.45); border-radius: 3px; }

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

.text-gradient {
  background: var(--gradient-green);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-header { text-align: center; margin-bottom: 60px; }
.section-tag {
  display: inline-block;
  padding: 6px 18px;
  background: rgba(13,158,106,0.10);
  border: 1px solid rgba(13,158,106,0.25);
  border-radius: 100px;
  font-size: 13px;
  color: var(--green-primary);
  margin-bottom: 16px;
  letter-spacing: 1px;
  font-weight: 600;
}
.section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 16px;
}
.section-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 580px;
  margin: 0 auto;
}

/* ---- Buttons ---- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 34px;
  background: var(--gradient-green);
  color: var(--text-on-green);
  font-weight: 700;
  font-size: 1rem;
  border-radius: 100px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-btn);
  letter-spacing: 0.3px;
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(13,158,106,0.45);
  filter: brightness(1.05);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 1rem;
  border-radius: 100px;
  text-decoration: none;
  transition: var(--transition);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.95);
  border-color: var(--border-hover);
  color: var(--green-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}
.btn-full { width: 100%; justify-content: center; }

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: var(--transition);
  padding: 16px 0;
}
.navbar.scrolled {
  background: rgba(245,239,224,0.92);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(160,130,90,0.18);
  padding: 10px 0;
  box-shadow: 0 4px 24px rgba(100,70,20,0.10);
}
.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-icon { display: flex; align-items: center; }
.logo-text { display: flex; flex-direction: column; }
.logo-name {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: 0.5px;
  line-height: 1.2;
}
.logo-sub {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 4px;
  align-items: center;
}
.nav-link {
  display: block;
  padding: 8px 14px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.nav-link:hover, .nav-link.active {
  color: var(--green-primary);
  background: rgba(13,158,106,0.09);
}

.nav-actions { display: flex; align-items: center; gap: 12px; }
.btn-nav-cta {
  padding: 9px 22px;
  background: var(--gradient-green);
  color: #fff;
  font-weight: 700;
  font-size: 0.875rem;
  border-radius: 100px;
  text-decoration: none;
  transition: var(--transition);
  box-shadow: 0 2px 12px rgba(13,158,106,0.25);
}
.btn-nav-cta:hover { opacity: 0.9; transform: translateY(-1px); box-shadow: 0 4px 20px rgba(13,158,106,0.40); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
  padding: 140px 60px 80px;
  position: relative;
  overflow: hidden;
  max-width: 1400px;
  margin: 0 auto;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: orbFloat 6s ease-in-out infinite;
}
.orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(13,158,106,0.10), transparent 70%);
  top: -100px; left: -100px;
  animation-delay: 0s;
}
.orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(201,150,58,0.12), transparent 70%);
  bottom: -50px; right: 200px;
  animation-delay: 2s;
}
.orb-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(8,145,178,0.08), transparent 70%);
  top: 40%; right: -50px;
  animation-delay: 4s;
}
@keyframes orbFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}
.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(100,70,20,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(100,70,20,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}

.hero-content { position: relative; z-index: 1; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(13,158,106,0.10);
  border: 1px solid rgba(13,158,106,0.25);
  border-radius: 100px;
  font-size: 0.82rem;
  color: var(--green-primary);
  margin-bottom: 24px;
  font-weight: 600;
}
.badge-dot {
  width: 8px; height: 8px;
  background: var(--green-primary);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-size: clamp(2.2rem, 4.5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}
.hero-desc {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 520px;
}
.hero-actions { display: flex; gap: 16px; margin-bottom: 48px; flex-wrap: wrap; }
.live-dot {
  width: 10px; height: 10px;
  background: #ef4444;
  border-radius: 50%;
  animation: pulse 1.5s ease-in-out infinite;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.stat-item { display: flex; flex-direction: column; align-items: flex-start; }
.stat-num {
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-green);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.stat-unit {
  font-size: 1rem;
  font-weight: 700;
  background: var(--gradient-green);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label { font-size: 0.78rem; color: var(--text-muted); margin-top: 4px; }
.stat-divider { width: 1px; height: 40px; background: var(--border); }

.hero-visual { position: relative; z-index: 1; }
.hero-img-wrapper { position: relative; border-radius: var(--radius-xl); overflow: hidden; }
.hero-img {
  width: 100%;
  display: block;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(160,130,90,0.18);
}
.hero-img-glow {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, transparent 50%, rgba(245,239,224,0.25) 100%);
  border-radius: var(--radius-xl);
  pointer-events: none;
}

.float-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(160,130,90,0.20);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 32px rgba(100,70,20,0.15);
  animation: cardFloat 4s ease-in-out infinite;
}
.float-card-1 { bottom: 30%; left: -50px; animation-delay: 0s; }
.float-card-2 { top: 15%; right: -40px; animation-delay: 1.5s; }
.float-card-3 { bottom: 10%; right: -30px; animation-delay: 3s; }
@keyframes cardFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.fc-icon { font-size: 1.5rem; }
.fc-text { display: flex; flex-direction: column; line-height: 1.3; }
.fc-text strong { font-size: 0.85rem; color: var(--text-primary); }
.fc-text span { font-size: 0.73rem; color: var(--text-secondary); }

.scroll-indicator {
  position: absolute;
  bottom: 30px; left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.75rem;
}
.scroll-arrow {
  width: 24px; height: 24px;
  border-right: 2px solid var(--text-muted);
  border-bottom: 2px solid var(--text-muted);
  transform: rotate(45deg);
  animation: scrollBounce 1.5s ease-in-out infinite;
}
@keyframes scrollBounce {
  0%, 100% { transform: rotate(45deg) translateY(0); }
  50% { transform: rotate(45deg) translateY(6px); }
}

/* ============================================================
   MARQUEE
   ============================================================ */
.marquee-strip {
  background: rgba(13,158,106,0.06);
  border-top: 1px solid rgba(13,158,106,0.12);
  border-bottom: 1px solid rgba(13,158,106,0.12);
  padding: 14px 0;
  overflow: hidden;
}
.marquee-track {
  display: flex;
  gap: 24px;
  white-space: nowrap;
  animation: marquee 25s linear infinite;
  width: max-content;
}
.marquee-track span {
  color: var(--green-primary);
  font-size: 0.9rem;
  font-weight: 500;
}
.marquee-track .sep { opacity: 0.4; }
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ============================================================
   FEATURES
   ============================================================ */
.features {
  padding: 120px 0;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature-card {
  padding: 36px 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(8px);
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient-green);
  opacity: 0;
  transition: var(--transition);
}
.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.feature-card:hover::before { opacity: 1; }

.feature-icon {
  width: 64px; height: 64px;
  background: linear-gradient(135deg, rgba(13,158,106,0.12), rgba(8,145,178,0.08));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  box-shadow: var(--shadow-sm);
  font-size: 1.7rem;
}
.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}
.feature-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 18px;
}
.feature-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.feature-tags span {
  padding: 4px 10px;
  background: rgba(13,158,106,0.08);
  border: 1px solid rgba(13,158,106,0.18);
  border-radius: 100px;
  font-size: 0.75rem;
  color: var(--green-primary);
}

/* ============================================================
   PRODUCTS
   ============================================================ */
.products { padding: 120px 0; background: var(--bg-section); }

.products-tabs {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.tab-btn {
  padding: 9px 22px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}
.tab-btn:hover { border-color: rgba(13,158,106,0.40); color: var(--green-primary); }
.tab-btn.active {
  background: var(--gradient-green);
  border-color: transparent;
  color: #fff;
  font-weight: 700;
}

.products-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.products-img-panel {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.products-main-img {
  width: 100%;
  display: block;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
}
.products-badge-certified {
  position: absolute;
  top: 20px; left: 20px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(13,158,106,0.30);
  border-radius: 100px;
  font-size: 0.82rem;
  color: var(--green-primary);
  font-weight: 600;
}

.products-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.product-card {
  display: flex;
  gap: 16px;
  padding: 18px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}
.product-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateX(6px);
  box-shadow: var(--shadow-card);
}
.prod-img-placeholder {
  width: 76px; height: 76px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}
.prod-info { flex: 1; min-width: 0; }
.prod-category {
  font-size: 0.72rem;
  color: var(--green-primary);
  background: rgba(13,158,106,0.09);
  padding: 3px 10px;
  border-radius: 100px;
  display: inline-block;
  margin-bottom: 6px;
  font-weight: 600;
  letter-spacing: 0.3px;
}
.prod-info h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.prod-info p  { font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 8px; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.prod-bottom  { display: flex; justify-content: space-between; align-items: center; }
.prod-price   { font-size: 0.85rem; color: var(--text-secondary); }
.prod-price strong { color: var(--green-primary); font-size: 1.15rem; font-weight: 800; }
.prod-rating  { font-size: 0.78rem; color: var(--text-muted); }
.prod-tags    { display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap; }
.prod-tags span {
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 100px;
  background: rgba(13,158,106,0.08);
  color: var(--green-primary);
  border: 1px solid rgba(13,158,106,0.15);
}

.products-cta { text-align: center; margin-top: 48px; }

/* ============================================================
   LIVESTREAM
   ============================================================ */
.livestream {
  padding: 120px 0;
  position: relative;
  overflow: hidden;
}
.ls-bg { position: absolute; inset: 0; pointer-events: none; }
.ls-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
}
.ls-orb-1 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(8,145,178,0.08), transparent);
  top: -100px; right: -100px;
}
.ls-orb-2 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(13,158,106,0.07), transparent);
  bottom: -50px; left: 100px;
}
.ls-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.ls-visual { position: relative; }
.ls-phone-frame {
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid rgba(160,130,90,0.20);
  box-shadow: 0 8px 40px rgba(100,70,20,0.18), 0 30px 80px rgba(100,70,20,0.10);
  position: relative;
}
.ls-img { width: 100%; display: block; }
.ls-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 55%, rgba(245,239,224,0.55) 100%);
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-start;
}
.ls-live-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(239,68,68,0.9);
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 700;
}
.ls-live-dot {
  width: 8px; height: 8px;
  background: #fff;
  border-radius: 50%;
  animation: pulse 1.2s ease-in-out infinite;
}
.ls-viewers {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.8);
  background: rgba(0,0,0,0.4);
  padding: 4px 10px;
  border-radius: 100px;
}
.ls-live-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  background: rgba(0,0,0,0.4);
  padding: 4px 12px;
  border-radius: 100px;
  max-width: 180px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ls-comments {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
}
.ls-comment {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.9);
  background: rgba(0,0,0,0.35);
  padding: 5px 12px;
  border-radius: 100px;
  backdrop-filter: blur(4px);
}

.ls-float-stat {
  position: absolute;
  padding: 14px 20px;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: 0 8px 32px rgba(100,70,20,0.15);
}
.ls-stat-1 { top: 20%; right: -40px; }
.ls-stat-2 { bottom: 20%; left: -40px; }
.ls-stat-num {
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--gradient-green);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.ls-stat-label { font-size: 0.75rem; color: var(--text-secondary); }

.ls-content .section-tag { display: inline-block; }
.ls-content .section-title { margin: 12px 0 20px; text-align: left; }
.ls-desc { color: var(--text-secondary); line-height: 1.8; margin-bottom: 32px; }

.ls-features { display: flex; flex-direction: column; gap: 20px; margin-bottom: 36px; }
.ls-feat-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.ls-feat-icon {
  width: 44px; height: 44px;
  background: rgba(13,158,106,0.09);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.ls-feat-item strong { display: block; font-size: 0.95rem; margin-bottom: 4px; }
.ls-feat-item p { font-size: 0.85rem; color: var(--text-secondary); }

/* ============================================================
   ABOUT
   ============================================================ */
.about { padding: 120px 0; background: var(--bg-section); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-content .section-tag { display: inline-block; }
.about-content .section-title { margin: 12px 0 20px; text-align: left; }
.about-lead { font-size: 1.05rem; color: var(--text-primary); font-weight: 500; margin-bottom: 16px; }
.about-body { color: var(--text-secondary); line-height: 1.8; margin-bottom: 14px; }

.about-values { margin-top: 32px; display: flex; flex-direction: column; gap: 16px; }
.value-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.value-item:hover { border-color: var(--border-glow); background: var(--bg-card-hover); }
.value-icon { font-size: 1.4rem; flex-shrink: 0; }
.value-item strong { display: block; font-size: 0.9rem; margin-bottom: 2px; }
.value-item span { font-size: 0.82rem; color: var(--text-secondary); }

.about-card-main {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.acm-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.50);
}
.acm-dot { width: 12px; height: 12px; border-radius: 50%; }
.acm-dot.green { background: #10b981; }
.acm-dot.yellow { background: #f59e0b; }
.acm-dot.red { background: #ef4444; }
.acm-title { color: var(--text-muted); font-size: 0.82rem; margin-left: 4px; }

.timeline { padding: 24px 20px; display: flex; flex-direction: column; gap: 0; }
.tl-item {
  display: flex;
  gap: 16px;
  padding-bottom: 24px;
  position: relative;
}
.tl-item::before {
  content: '';
  position: absolute;
  left: 52px; top: 24px; bottom: 0;
  width: 1px;
  background: var(--border);
}
.tl-item:last-child::before { display: none; }
.tl-item:last-child { padding-bottom: 0; }

.tl-year {
  min-width: 52px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-muted);
  padding-top: 2px;
  flex-shrink: 0;
  text-align: right;
}
.tl-item.active .tl-year { color: var(--green-primary); }

.tl-content {
  padding-left: 20px;
  position: relative;
}
.tl-content::before {
  content: '';
  position: absolute;
  left: 5px; top: 8px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--border);
}
.tl-item.active .tl-content::before { background: var(--green-primary); box-shadow: 0 0 10px rgba(13,158,106,0.40); }
.tl-content strong { display: block; font-size: 0.9rem; margin-bottom: 4px; }
.tl-content p { font-size: 0.82rem; color: var(--text-secondary); }

/* ============================================================
   QUALIFICATIONS  —  资质证书滚动展示
   ============================================================ */
.qualifications {
  padding: 100px 0 80px;
  background: var(--bg-base);
  overflow: hidden;
}
.qualifications .section-header { margin-bottom: 48px; }

/* 滚动容器 */
.qual-scroll-wrap {
  position: relative;
  overflow: hidden;
  /* 左右淡出遮罩 */
  mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
}
.qual-track {
  display: flex;
  gap: 28px;
  padding: 16px 40px 24px;
  width: max-content;
  animation: qualScroll 22s linear infinite;
}
.qual-scroll-wrap:hover .qual-track { animation-play-state: paused; }

@keyframes qualScroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* 单张证书卡片 */
.qual-item {
  flex-shrink: 0;
  width: clamp(200px, 22vw, 380px);
  cursor: pointer;
  text-align: center;
}
.qual-img-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 380 / 480;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 6px 28px rgba(100,70,20,0.16), 0 2px 6px rgba(100,70,20,0.08);
  border: 1px solid rgba(150,120,80,0.15);
  transition: var(--transition);
  background: #fff;
}
.qual-item:hover .qual-img-wrap {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 16px 48px rgba(100,70,20,0.22), 0 4px 12px rgba(100,70,20,0.10);
  border-color: var(--border-hover);
}
.qual-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: var(--transition);
}
.qual-item:hover .qual-img-wrap img { filter: brightness(0.88); }

/* hover 遮罩 */
.qual-overlay {
  position: absolute;
  inset: 0;
  background: rgba(13,158,106,0.72);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
  backdrop-filter: blur(2px);
}
.qual-item:hover .qual-overlay { opacity: 1; }
.qual-overlay span {
  color: #fff;
  font-size: 0.9rem;
  font-weight: 700;
  padding: 8px 20px;
  border: 2px solid rgba(255,255,255,0.8);
  border-radius: 100px;
  letter-spacing: 1px;
}

/* 标签 */
.qual-label {
  margin-top: 12px;
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: clamp(200px, 22vw, 380px);
}

/* 灯箱 */
.qual-lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
}
.qual-lightbox.open { display: flex; }
.qual-lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10,6,2,0.82);
  backdrop-filter: blur(8px);
  cursor: pointer;
}
.qual-lightbox-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 24px;
  animation: lbFadeIn 0.3s ease;
}
@keyframes lbFadeIn {
  from { opacity: 0; transform: scale(0.92); }
  to   { opacity: 1; transform: scale(1); }
}
.qual-lightbox-inner img {
  max-width: min(380px, 90vw);
  max-height: 80vh;
  border-radius: var(--radius-md);
  box-shadow: 0 24px 80px rgba(0,0,0,0.6);
  object-fit: contain;
}
.qual-lightbox-inner p {
  color: rgba(255,255,255,0.9);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}
#qual-lightbox-close {
  position: absolute;
  top: 12px; right: 12px;
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.5);
  background: rgba(0,0,0,0.5);
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
  backdrop-filter: blur(4px);
  z-index: 10;
}
#qual-lightbox-close:hover {
  background: rgba(255,255,255,0.3);
  border-color: #fff;
}

/* ============================================================
   PARTNERS
   ============================================================ */
.partners { padding: 80px 0; }
.partners-logos {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}
.partner-logo {
  padding: 20px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-align: center;
  transition: var(--transition);
  min-width: 180px;
}
.partner-logo:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}
.pl-inner { color: var(--text-secondary); font-size: 0.85rem; line-height: 1.5; }
.pl-inner span { color: var(--text-primary); font-weight: 600; font-size: 0.9rem; }
.pl-inner small { font-size: 0.75rem; color: var(--text-muted); }

/* ============================================================
   NEWS
   ============================================================ */
.news { padding: 120px 0; background: var(--bg-section); }
.news-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.news-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(8px);
}
.news-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.news-card-featured { grid-row: span 2; }

.news-img-placeholder {
  width: 100%;
  height: 180px;
  background: linear-gradient(135deg, #d4e8d4, #c8e0ea);
  display: flex;
  align-items: flex-start;
  padding: 16px;
  position: relative;
}
.news-card-featured .news-img-placeholder { height: 240px; }
.featured-bg { background: linear-gradient(135deg, #c8e8d6, #cce8f0, #d4e8c8); }

.news-category-tag {
  display: inline-block;
  padding: 5px 12px;
  background: var(--gradient-green);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 100px;
}
.news-info { padding: 20px 24px; }
.news-date { font-size: 0.78rem; color: var(--text-muted); display: block; margin-bottom: 10px; }
.news-info h3 { font-size: 0.95rem; font-weight: 700; line-height: 1.5; margin-bottom: 10px; }
.news-card-featured .news-info h3 { font-size: 1.1rem; }
.news-info p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 16px; }
.news-read-more {
  font-size: 0.85rem;
  color: var(--green-primary);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
}
.news-read-more:hover { opacity: 0.7; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact { padding: 120px 0; }
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: start;
}

.contact-info { display: flex; flex-direction: column; gap: 16px; }
.ci-card {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 22px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.ci-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}
.ci-icon { font-size: 1.4rem; flex-shrink: 0; }
.ci-card strong { display: block; font-size: 0.9rem; margin-bottom: 4px; }
.ci-card p { font-size: 0.83rem; color: var(--text-secondary); line-height: 1.6; }

.contact-social {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 8px;
}
.social-btn {
  padding: 9px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  text-decoration: none;
  transition: var(--transition);
}
.social-btn:hover {
  border-color: var(--border-glow);
  color: var(--green-primary);
  background: rgba(13,158,106,0.08);
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
}
.form-group { margin-bottom: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
input, select, textarea {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255,255,255,0.70);
  border: 1px solid rgba(160,130,90,0.20);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9rem;
  transition: var(--transition);
  outline: none;
}
input::placeholder, textarea::placeholder { color: var(--text-muted); }
input:focus, select:focus, textarea:focus {
  border-color: rgba(13,158,106,0.45);
  background: rgba(255,255,255,0.90);
  box-shadow: 0 0 0 3px rgba(13,158,106,0.10);
}
select { cursor: pointer; appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239C8060' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; background-size: 12px; }
select option { background: #fff; color: var(--text-primary); }
textarea { resize: vertical; min-height: 100px; }

.form-privacy { font-size: 0.78rem; color: var(--text-muted); text-align: center; margin-top: 12px; }
.form-privacy a { color: var(--green-primary); text-decoration: none; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: #EAE0CC;
  border-top: 1px solid rgba(160,130,90,0.20);
  padding: 60px 0 0;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: 60px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(160,130,90,0.15);
}
.footer-brand .nav-logo { margin-bottom: 16px; }
.footer-logo-link { text-decoration: none; display: flex; align-items: center; gap: 12px; }
.footer-tagline { color: var(--text-secondary); font-size: 0.88rem; line-height: 1.7; margin-bottom: 16px; }
.footer-cert { display: flex; gap: 10px; flex-wrap: wrap; }
.cert-badge {
  padding: 5px 12px;
  background: rgba(13,158,106,0.08);
  border: 1px solid rgba(13,158,106,0.18);
  border-radius: 100px;
  font-size: 0.75rem;
  color: var(--green-primary);
  font-weight: 600;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--green-primary); }

.footer-bottom {
  padding: 20px 0;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.footer-bottom p { font-size: 0.78rem; color: var(--text-muted); }

/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 32px; right: 32px;
  width: 44px; height: 44px;
  background: var(--gradient-green);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition);
  z-index: 999;
  box-shadow: 0 4px 20px rgba(13,158,106,0.35);
}
.back-to-top.visible { opacity: 1; transform: translateY(0); }
.back-to-top:hover { transform: translateY(-4px); }

/* ============================================================
   ANIMATIONS
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1100px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 120px 40px 80px;
    text-align: center;
  }
  .hero-desc, .hero-stats { justify-content: center; }
  .hero-actions { justify-content: center; }
  .float-card-1, .float-card-2, .float-card-3 { display: none; }
  .hero-visual { order: -1; max-width: 500px; margin: 0 auto; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .ls-container { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .about-content .section-title { text-align: left; }
  .contact-layout { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .ls-float-stat { display: none; }
}

@media (max-width: 768px) {
  .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; background: rgba(245,239,224,0.97); backdrop-filter: blur(20px); flex-direction: column; padding: 16px; gap: 4px; border-bottom: 1px solid rgba(160,130,90,0.18); }
  .nav-links.open { display: flex; }
  .hamburger { display: flex; }
  .hero { padding: 100px 20px 60px; gap: 32px; }
  .features-grid { grid-template-columns: 1fr; }
  .products-layout { grid-template-columns: 1fr; }
  .products-img-panel { display: none; }
  .news-grid { grid-template-columns: 1fr; }
  .news-card-featured { grid-row: span 1; }
  .contact-form { padding: 24px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-links { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; justify-items: center; }
  .stat-divider { display: none; }
  .ls-visual { max-width: 320px; margin: 0 auto; }
  .ls-live-title { max-width: 140px; }
  .contact-social { flex-wrap: wrap; }
}