/* ========== RESET & BASE ========== */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

:root {
  --dark: #0a0a10;
  --dark-soft: #14141e;
  --gold: #c9a96e;
  --gold-light: #d4b87a;
  --gold-dark: #b8944f;
  --white: #ffffff;
  --light: #f7f6f2;
  --gray-100: #f0efeb;
  --gray-200: #e2e0d8;
  --gray-400: #9c9a90;
  --gray-600: #5c5a52;
  --gray-800: #2a2822;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-display: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.12);
  --radius: 4px;
  --radius-lg: 8px;
  --transition: 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
}

html { scroll-behavior:smooth; font-size:16px; }
body {
  font-family: var(--font-sans);
  color: var(--gray-800);
  line-height: 1.75;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 40px; }
@media (max-width: 768px) { .container { padding: 0 20px; } }

/* ========== NAVIGATION ========== */
.nav {
  position: fixed; top:0; left:0; right:0; z-index: 100;
  background: rgba(10,10,16,0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: var(--transition);
}
.nav-inner {
  max-width: 1200px; margin:0 auto; padding: 0 40px;
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 20px; font-weight: 700; color: var(--white);
  letter-spacing: 1px; text-decoration: none;
  display: flex; align-items: center; gap: 8px;
}
.nav-logo .logo-dot {
  width: 8px; height: 8px; background: var(--gold); border-radius: 50%;
}
.nav-links { display: flex; gap: 32px; list-style: none; align-items: center; }
.nav-links a {
  color: rgba(255,255,255,0.7); text-decoration: none;
  font-size: 14px; letter-spacing: 0.5px;
  transition: var(--transition); position: relative;
}
.nav-links a:hover, .nav-links a.active { color: var(--white); }
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 1px; background: var(--gold);
  transition: var(--transition);
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

@media (max-width: 768px) {
  .nav-inner { padding: 0 20px; height: 56px; }
  .nav-links { gap: 16px; }
  .nav-links a { font-size: 13px; }
}

/* ========== HERO ========== */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  background: linear-gradient(135deg, var(--dark) 0%, #0f0f1a 40%, #1a1025 100%);
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: -50%; right: -20%;
  width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(201,169,110,0.06) 0%, transparent 70%);
  border-radius: 50%;
}
.hero::after {
  content: ''; position: absolute; bottom: -30%; left: -10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(201,169,110,0.04) 0%, transparent 70%);
  border-radius: 50%;
}
.hero-content { position: relative; z-index: 1; max-width: 700px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(201,169,110,0.12);
  border: 1px solid rgba(201,169,110,0.2);
  color: var(--gold-light);
  padding: 8px 20px; border-radius: 100px;
  font-size: 13px; letter-spacing: 1px;
  margin-bottom: 32px;
}
.hero-badge .badge-dot {
  width: 6px; height: 6px; background: var(--gold); border-radius: 50%;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: 56px; font-weight: 700; color: var(--white);
  line-height: 1.2; letter-spacing: -1px; margin-bottom: 20px;
}
.hero h1 .gold { color: var(--gold); }
.hero p {
  font-size: 18px; color: rgba(255,255,255,0.55);
  line-height: 1.8; margin-bottom: 40px; max-width: 520px;
}
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; border-radius: var(--radius);
  font-size: 15px; font-weight: 600; text-decoration: none;
  letter-spacing: 0.5px; cursor: pointer;
  transition: var(--transition); border: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--dark);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 25px rgba(201,169,110,0.3); }
.btn-outline {
  background: transparent; color: var(--white);
  border: 1px solid rgba(255,255,255,0.2);
}
.btn-outline:hover { border-color: var(--gold); color: var(--gold); }
.btn-white {
  background: var(--white); color: var(--dark);
}
.btn-white:hover { background: var(--gray-100); transform: translateY(-1px); }

@media (max-width: 768px) {
  .hero { min-height: auto; padding: 120px 0 80px; }
  .hero h1 { font-size: 34px; }
  .hero p { font-size: 16px; }
}

/* ========== TRUST BAR ========== */
.trust-bar {
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  padding: 32px 0;
}
.trust-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 40px; text-align: center;
}
.trust-num {
  font-family: var(--font-display);
  font-size: 36px; font-weight: 700; color: var(--dark);
  display: block; margin-bottom: 4px;
}
.trust-num .gold { color: var(--gold); }
.trust-label { font-size: 14px; color: var(--gray-400); letter-spacing: 0.5px; }

@media (max-width: 768px) { .trust-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; } }

/* ========== SECTIONS ========== */
.section { padding: 100px 0; }
.section-dark { background: var(--dark); color: var(--white); }
.section-light { background: var(--light); }
.section-title { text-align: center; margin-bottom: 60px; }
.section-title .label {
  display: inline-block; font-size: 12px; letter-spacing: 2px;
  color: var(--gold); text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title h2 {
  font-family: var(--font-display);
  font-size: 36px; font-weight: 700; line-height: 1.3;
  margin-bottom: 12px;
}
.section-dark .section-title h2 { color: var(--white); }
.section-title p { color: var(--gray-400); font-size: 16px; max-width: 500px; margin: 0 auto; }
.section-dark .section-title p { color: rgba(255,255,255,0.45); }

/* ========== CARDS ========== */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

.card {
  background: var(--white); border-radius: var(--radius-lg);
  padding: 40px 32px; transition: var(--transition);
  border: 1px solid var(--gray-200);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card-icon {
  width: 56px; height: 56px; border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; margin-bottom: 20px;
}
.card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; color: var(--dark); }
.card p { font-size: 14px; color: var(--gray-600); line-height: 1.7; }

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; gap: 20px; }
}

/* ========== SERVICE SECTION ========== */
.service-row {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--gray-200);
}
.service-item {
  background: var(--white); padding: 48px 40px;
  text-align: center; transition: var(--transition);
}
.service-item:hover { background: var(--light); }
.service-item .svc-icon { font-size: 40px; margin-bottom: 20px; }
.service-item h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; color: var(--dark); }
.service-item p { font-size: 14px; color: var(--gray-600); line-height: 1.7; }

@media (max-width: 768px) { .service-row { grid-template-columns: 1fr; } }

/* ========== AWARDS ========== */
.awards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.award-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: 36px 28px; text-align: center;
  transition: var(--transition);
}
.award-card:hover { border-color: rgba(201,169,110,0.3); background: rgba(255,255,255,0.06); }
.award-badge { font-size: 44px; margin-bottom: 16px; }
.award-card h3 { font-size: 17px; font-weight: 700; color: var(--white); margin-bottom: 6px; }
.award-card p { font-size: 13px; color: rgba(255,255,255,0.45); }

@media (max-width: 768px) { .awards-grid { grid-template-columns: 1fr; } }

/* ========== CTA SECTION ========== */
.cta-section {
  background: linear-gradient(135deg, #c9a96e 0%, #b8944f 100%);
  padding: 80px 0; text-align: center;
}
.cta-section h2 {
  font-family: var(--font-display);
  font-size: 36px; font-weight: 700; color: var(--dark);
  margin-bottom: 12px;
}
.cta-section p { color: rgba(10,10,16,0.6); font-size: 16px; margin-bottom: 32px; }
.cta-section .btn { background: var(--dark); color: var(--gold); }
.cta-section .btn:hover { background: #1a1a2a; }

/* ========== CONTACT ========== */
.contact-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px;
}
.contact-card {
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg); padding: 40px;
  text-align: center;
}
.contact-card .icon { font-size: 32px; margin-bottom: 16px; }
.contact-card h3 { font-size: 18px; font-weight: 700; color: var(--dark); margin-bottom: 16px; }
.contact-card .info { font-size: 15px; color: var(--gray-600); line-height: 2; }
.contact-card .info strong { color: var(--dark); font-size: 18px; }
.contact-card .qrcode { width: 140px; height: 140px; margin: 12px auto 0; border-radius: var(--radius); }
.contact-card .qrcode img { width: 100%; height: 100%; object-fit: contain; }

@media (max-width: 768px) { .contact-grid { grid-template-columns: 1fr; } }

/* ========== ZHI TU MINI ========== */
.zhitu-mini {
  background: var(--light); padding: 48px 40px;
  border-radius: var(--radius-lg); text-align: center;
  border: 1px solid var(--gray-200);
  max-width: 800px; margin: 0 auto;
}
.zhitu-mini .zhitu-tag {
  display: inline-block; background: #dbeafe; color: #2563eb;
  font-size: 11px; letter-spacing: 1px; padding: 4px 12px;
  border-radius: 100px; margin-bottom: 12px;
}
.zhitu-mini h4 { font-size: 18px; font-weight: 700; color: var(--dark); margin-bottom: 6px; }
.zhitu-mini p { font-size: 14px; color: var(--gray-600); margin-bottom: 16px; }
.zhitu-mini .btn { background: var(--dark); color: var(--white); font-size: 14px; padding: 10px 24px; }

/* ========== FOOTER ========== */
.footer {
  background: var(--dark); color: rgba(255,255,255,0.5);
  padding: 60px 0 30px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 40px; }
.footer h4 { color: var(--white); font-size: 16px; font-weight: 700; margin-bottom: 16px; }
.footer p, .footer a { font-size: 14px; line-height: 2; text-decoration: none; }
.footer a { color: rgba(255,255,255,0.5); transition: var(--transition); }
.footer a:hover { color: var(--gold); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px; text-align: center; font-size: 13px;
}

@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr; gap: 32px; } }

/* ========== PAGE HERO (sub pages) ========== */
.page-hero {
  padding: 140px 0 80px;
  background: linear-gradient(135deg, var(--dark) 0%, #0f0f1a 40%, #1a1025 100%);
  text-align: center; position: relative; overflow: hidden;
}
.page-hero::before {
  content: ''; position: absolute; top: -30%; right: -15%;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(201,169,110,0.06) 0%, transparent 70%);
  border-radius: 50%;
}
.page-hero h1 {
  font-family: var(--font-display);
  font-size: 44px; font-weight: 700; color: var(--white);
  letter-spacing: -0.5px; margin-bottom: 12px;
  position: relative;
}
.page-hero p { font-size: 17px; color: rgba(255,255,255,0.5); position: relative; }

/* ========== FEATURE LIST ========== */
.feature-list { list-style: none; }
.feature-list li {
  padding: 12px 0; border-bottom: 1px solid var(--gray-200);
  display: flex; align-items: center; gap: 12px;
  font-size: 15px; color: var(--gray-800);
}
.feature-list li::before {
  content: ''; width: 6px; height: 6px;
  background: var(--gold); border-radius: 50%;
  flex-shrink: 0;
}

/* ========== MODEL SHOWCASE ========== */
.model-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.model-card {
  background: var(--white); border-radius: var(--radius-lg);
  overflow: hidden; border: 1px solid var(--gray-200);
  transition: var(--transition);
}
.model-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.model-img {
  height: 200px; background: var(--light);
  display: flex; align-items: center; justify-content: center;
  font-size: 60px;
}
.model-info { padding: 24px; }
.model-info h3 { font-size: 18px; font-weight: 700; color: var(--dark); margin-bottom: 4px; }
.model-info .tag {
  display: inline-block; background: #fef3c7; color: #b8944f;
  font-size: 11px; padding: 2px 10px; border-radius: 100px;
  margin-bottom: 8px;
}
.model-info p { font-size: 13px; color: var(--gray-400); }

@media (max-width: 768px) { .model-grid { grid-template-columns: 1fr; } }

/* ========== SAFETY / TRUST BADGES ========== */
.trust-badges {
  display: flex; gap: 16px; flex-wrap: wrap; align-items: center;
  justify-content: center;
}
.trust-badge {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 20px; background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 100px; font-size: 13px; color: rgba(255,255,255,0.7);
}