/* ============================================
   恒信包装制品有限公司 - 自定义样式表
   设计系统：工业蓝 #193760 / 鎏金 #D4AF37
   ============================================ */

/* --- CSS Variables --- */
:root {
  --primary: #193760;
  --primary-dark: #12294a;
  --primary-light: #1e4275;
  --gold: #D4AF37;
  --gold-light: #e0c55a;
  --blue: #3498DB;
  --blue-light: #5dade2;
  --bg-light: #F5F7FA;
  --text-gray: #666666;
  --text-dark: #222222;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
  --radius: 6px;
  --radius-card: 10px;
  --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Base Reset & Typography --- */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--text-dark);
  background: #fff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --- Container Helper --- */
.container-xl {
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

@media (min-width: 768px) {
  .container-xl {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

/* --- Section Spacing --- */
.section {
  padding-top: 2.5rem;
  padding-bottom: 2.5rem;
}

@media (min-width: 768px) {
  .section {
    padding-top: 4rem;
    padding-bottom: 4rem;
  }
}

/* --- Section Title --- */
.section-badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
  background: rgba(212, 175, 55, 0.08);
  padding: 0.35rem 1rem;
  border-radius: 50px;
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 1.75rem;
  letter-spacing: -0.3px;
  color: var(--text-dark);
  margin-bottom: 0.75rem;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.25rem;
  }
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-gray);
  max-width: 640px;
  line-height: 1.65;
}

/* --- Divider --- */
.section-divider {
  width: 50px;
  height: 3px;
  background: var(--gold);
  border-radius: 2px;
  margin: 0.75rem 0 1rem;
}

.section-divider.center {
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   HEADER / NAVIGATION
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  transition: box-shadow var(--transition), transform var(--transition);
}

.site-header.scrolled {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

.site-header .nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
  height: 70px;
}

@media (min-width: 768px) {
  .site-header .nav-container {
    padding: 0 2rem;
    height: 76px;
  }
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo .logo-icon {
  width: 40px;
  height: 40px;
  background: var(--primary);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.5px;
}

.nav-logo .logo-text {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-dark);
  letter-spacing: -0.3px;
  white-space: nowrap;
}

@media (max-width: 767px) {
  .nav-logo .logo-text {
    font-size: 0.95rem;
  }
}

.nav-links {
  display: none;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

@media (min-width: 1024px) {
  .nav-links {
    display: flex;
  }
}

.nav-links a {
  display: block;
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-dark);
  text-decoration: none;
  border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
  background: rgba(25, 55, 96, 0.05);
}

.nav-cta {
  display: none;
}

@media (min-width: 1024px) {
  .nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--primary);
    color: #fff;
    padding: 0.55rem 1.25rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    transition: background var(--transition), transform var(--transition);
    white-space: nowrap;
  }

  .nav-cta:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
  }
}

/* Mobile Menu Toggle */
.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

@media (min-width: 1024px) {
  .mobile-menu-btn {
    display: none;
  }
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  position: relative;
  transition: background 0.3s;
}

.mobile-menu-btn span::before,
.mobile-menu-btn span::after {
  content: '';
  position: absolute;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: transform 0.3s;
}

.mobile-menu-btn span::before {
  top: -7px;
}

.mobile-menu-btn span::after {
  top: 7px;
}

.mobile-menu-btn.active span {
  background: transparent;
}

.mobile-menu-btn.active span::before {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span::after {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  bottom: 0;
  background: #fff;
  z-index: 999;
  padding: 1rem;
  overflow-y: auto;
}

.mobile-nav.active {
  display: block;
}

@media (min-width: 1024px) {
  .mobile-nav.active {
    display: none;
  }
}

.mobile-nav a {
  display: block;
  padding: 0.85rem 1rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-dark);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  transition: color var(--transition);
}

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

.mobile-nav .mobile-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  width: 100%;
  margin-top: 1rem;
  background: var(--primary);
  color: #fff;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
}

/* ============================================
   HERO BANNER
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(160deg, #f0f3f8 0%, #e8ecf2 30%, #f5f7fa 70%, #fff 100%);
  overflow: hidden;
  padding-top: 70px;
}

.hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -15%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(25, 55, 96, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.05) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-bg-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image:
    linear-gradient(30deg, var(--primary) 12%, transparent 12.5%),
    linear-gradient(150deg, var(--primary) 12%, transparent 12.5%);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(25, 55, 96, 0.06);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.4rem 1rem;
  border-radius: 50px;
  margin-bottom: 1.25rem;
  letter-spacing: 0.02em;
}

.hero-badge .dot {
  width: 7px;
  height: 7px;
  background: var(--gold);
  border-radius: 50%;
}

.hero-title {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 2rem;
  letter-spacing: -0.3px;
  color: var(--text-dark);
  line-height: 1.2;
  margin-bottom: 1rem;
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 2.75rem;
  }
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: 3.25rem;
  }
}

.hero-title .highlight {
  color: var(--primary);
  position: relative;
}

.hero-desc {
  font-size: 1rem;
  color: var(--text-gray);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 1.75rem;
}

@media (min-width: 768px) {
  .hero-desc {
    font-size: 1.05rem;
  }
}

.hero-stats {
  display: flex;
  gap: 2rem;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
}

.hero-stat {
  text-align: left;
}

.hero-stat-number {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 2rem;
  color: var(--primary);
  letter-spacing: -0.5px;
  line-height: 1;
}

.hero-stat-label {
  font-size: 0.8rem;
  color: var(--text-gray);
  margin-top: 0.25rem;
}

.hero-buttons {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.7rem 1.6rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(25, 55, 96, 0.3);
}

.btn-gold {
  background: var(--gold);
  color: #fff;
}

.btn-gold:hover {
  background: #c09c2e;
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(212, 175, 55, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}

.btn-white {
  background: #fff;
  color: var(--primary);
}

.btn-white:hover {
  background: #f0f3f8;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.btn-lg {
  padding: 0.85rem 2rem;
  font-size: 0.95rem;
}

/* Hero Visual */
.hero-visual {
  position: relative;
  display: none;
}

@media (min-width: 1024px) {
  .hero-visual {
    display: block;
  }
}

.hero-visual .box-stack {
  position: relative;
  width: 420px;
  height: 380px;
}

.hero-box {
  position: absolute;
  background: #fff;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-box.box-1 {
  width: 200px;
  height: 160px;
  top: 20px;
  left: 40px;
  background: linear-gradient(135deg, #fff 0%, #f0f3f8 100%);
  border: 2px solid rgba(25, 55, 96, 0.08);
  z-index: 3;
  animation: floatBox 5s ease-in-out infinite;
}

.hero-box.box-2 {
  width: 180px;
  height: 140px;
  top: 100px;
  right: 30px;
  background: linear-gradient(135deg, #fff 0%, #f8f6f0 100%);
  border: 2px solid rgba(212, 175, 55, 0.15);
  z-index: 2;
  animation: floatBox 5s ease-in-out 1s infinite;
}

.hero-box.box-3 {
  width: 220px;
  height: 170px;
  bottom: 20px;
  left: 80px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  z-index: 1;
  animation: floatBox 5s ease-in-out 2s infinite;
}

.hero-box .box-icon {
  font-size: 2.5rem;
  opacity: 0.7;
}

.hero-box.box-3 .box-icon {
  color: rgba(255, 255, 255, 0.9);
}

.hero-box .box-label {
  position: absolute;
  bottom: 12px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-gray);
  letter-spacing: 0.03em;
}

.hero-box.box-3 .box-label {
  color: rgba(255, 255, 255, 0.8);
}

@keyframes floatBox {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

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

.about-image-wrapper {
  position: relative;
}

.about-image {
  width: 100%;
  height: 320px;
  background: linear-gradient(135deg, #e8ecf2 0%, #d5dbe5 50%, #c8d0dc 100%);
  border-radius: var(--radius-card);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

@media (min-width: 768px) {
  .about-image {
    height: 420px;
  }
}

.about-image .factory-icon {
  font-size: 5rem;
  opacity: 0.5;
}

.about-image::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: -2px;
  right: -2px;
  height: 6px;
  background: var(--gold);
  border-radius: 0 0 var(--radius-card) var(--radius-card);
}

.about-experience-badge {
  position: absolute;
  bottom: 20px;
  right: -15px;
  background: var(--primary);
  color: #fff;
  padding: 1rem 1.5rem;
  border-radius: var(--radius-card);
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.about-experience-badge .years {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
}

.about-experience-badge .label {
  font-size: 0.75rem;
  opacity: 0.85;
  margin-top: 0.2rem;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}

.about-feature {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
}

.about-feature .feature-icon {
  width: 36px;
  height: 36px;
  background: rgba(25, 55, 96, 0.06);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
}

.about-feature .feature-text strong {
  display: block;
  font-size: 0.85rem;
  color: var(--text-dark);
  margin-bottom: 0.1rem;
}

.about-feature .feature-text span {
  font-size: 0.78rem;
  color: var(--text-gray);
}

/* ============================================
   PRODUCTS SECTION
   ============================================ */
.products-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.product-card {
  background: #fff;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all var(--transition);
  border: 1px solid rgba(0, 0, 0, 0.04);
  cursor: pointer;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(25, 55, 96, 0.1);
}

.product-card-image {
  height: 220px;
  background: linear-gradient(135deg, #f0f3f8 0%, #e2e7ef 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.product-card-image .product-icon {
  font-size: 4rem;
  opacity: 0.45;
  transition: transform 0.4s ease;
}

.product-card:hover .product-card-image .product-icon {
  transform: scale(1.1);
}

.product-card-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--primary);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: 50px;
  letter-spacing: 0.03em;
}

.product-card-body {
  padding: 1.25rem;
}

.product-card-body h3 {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.3px;
  color: var(--text-dark);
  margin-bottom: 0.4rem;
}

.product-card-body p {
  font-size: 0.85rem;
  color: var(--text-gray);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.product-card-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.product-spec {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--primary);
  background: rgba(25, 55, 96, 0.05);
  padding: 0.2rem 0.6rem;
  border-radius: 50px;
}

/* ============================================
   CASES SECTION
   ============================================ */
.cases-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .cases-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.case-card {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  cursor: pointer;
}

.case-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.case-card-image {
  height: 240px;
  background: linear-gradient(135deg, #e8ecf2 0%, #dce2ea 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.case-card-image .case-icon {
  font-size: 3.5rem;
  opacity: 0.4;
}

.case-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(25, 55, 96, 0.75) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
  display: flex;
  align-items: flex-end;
  padding: 1.25rem;
}

.case-card:hover .case-card-overlay {
  opacity: 1;
}

.case-card-overlay span {
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
}

.case-card-body {
  padding: 1rem 1.25rem;
}

.case-card-body h3 {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.3px;
  color: var(--text-dark);
  margin-bottom: 0.25rem;
}

.case-card-body p {
  font-size: 0.8rem;
  color: var(--text-gray);
}

/* ============================================
   STRENGTH SECTION
   ============================================ */
.strength-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .strength-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .strength-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.strength-card {
  background: #fff;
  border-radius: var(--radius-card);
  padding: 1.75rem 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0, 0, 0, 0.04);
  transition: all var(--transition);
  text-align: center;
}

.strength-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(25, 55, 96, 0.08);
}

.strength-card .strength-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1rem;
  background: rgba(25, 55, 96, 0.06);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  transition: all var(--transition);
}

.strength-card:hover .strength-icon {
  background: var(--primary);
  color: #fff;
}

.strength-card h3 {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.3px;
  color: var(--text-dark);
  margin-bottom: 0.5rem;
}

.strength-card p {
  font-size: 0.85rem;
  color: var(--text-gray);
  line-height: 1.6;
}

/* ============================================
   EQUIPMENT SECTION
   ============================================ */
.equipment-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .equipment-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .equipment-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.equipment-card {
  background: #fff;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0, 0, 0, 0.04);
  transition: all var(--transition);
}

.equipment-card:hover {
  box-shadow: var(--shadow-lg);
}

.equipment-card-image {
  height: 200px;
  background: linear-gradient(135deg, #e8ecf2 0%, #dce2ea 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.equipment-card-image .equipment-icon {
  font-size: 3.5rem;
  opacity: 0.4;
}

.equipment-card-body {
  padding: 1.25rem;
}

.equipment-card-body h3 {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.3px;
  color: var(--text-dark);
  margin-bottom: 0.35rem;
}

.equipment-card-body .eq-spec {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.equipment-card-body .eq-spec-item {
  font-size: 0.72rem;
  color: var(--text-gray);
  background: var(--bg-light);
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
}

/* ============================================
   FAQ SECTION
   ============================================ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-card);
  margin-bottom: 0.75rem;
  overflow: hidden;
  transition: all var(--transition);
}

.faq-item:hover {
  border-color: rgba(25, 55, 96, 0.1);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.25rem;
  background: none;
  border: none;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-dark);
  text-align: left;
  transition: color var(--transition);
}

.faq-question:hover {
  color: var(--primary);
}

.faq-question .faq-arrow {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  transition: transform var(--transition);
  color: var(--text-gray);
}

.faq-item.active .faq-question .faq-arrow {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer-inner {
  padding: 0 1.25rem 1.1rem;
  font-size: 0.9rem;
  color: var(--text-gray);
  line-height: 1.7;
}

/* ============================================
   QUOTE SECTION
   ============================================ */
.quote-wrapper {
  background: #fff;
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .quote-wrapper {
    grid-template-columns: 1fr 1fr;
  }
}

.quote-info {
  background: var(--primary);
  padding: 2.5rem 2rem;
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

@media (min-width: 768px) {
  .quote-info {
    padding: 3rem 2.5rem;
  }
}

.quote-info h3 {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: -0.3px;
  margin-bottom: 1rem;
}

.quote-info p {
  font-size: 0.9rem;
  opacity: 0.85;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.quote-info-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
}

.quote-info-item .qi-icon {
  width: 32px;
  height: 32px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.quote-form {
  padding: 2.5rem 2rem;
}

@media (min-width: 768px) {
  .quote-form {
    padding: 3rem 2.5rem;
  }
}

.quote-form h3 {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: -0.3px;
  color: var(--text-dark);
  margin-bottom: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

@media (min-width: 640px) {
  .form-row {
    grid-template-columns: 1fr 1fr;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  padding: 0.7rem 0.85rem;
  border: 1.5px solid #e2e7ef;
  border-radius: var(--radius);
  background: #fafbfc;
  color: var(--text-dark);
  transition: all var(--transition);
  outline: none;
  width: 100%;
  box-sizing: border-box;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(25, 55, 96, 0.06);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-submit {
  width: 100%;
  margin-top: 0.5rem;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

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

.contact-info-card {
  background: #fff;
  border-radius: var(--radius-card);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0, 0, 0, 0.04);
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
  transition: all var(--transition);
}

.contact-info-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.contact-info-card .ci-icon {
  width: 44px;
  height: 44px;
  background: rgba(25, 55, 96, 0.06);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
}

.contact-info-card .ci-text h4 {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-dark);
  margin-bottom: 0.2rem;
}

.contact-info-card .ci-text p {
  font-size: 0.85rem;
  color: var(--text-gray);
}

.contact-map {
  width: 100%;
  height: 300px;
  background: linear-gradient(135deg, #e8ecf2 0%, #dce2ea 100%);
  border-radius: var(--radius-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--text-gray);
  overflow: hidden;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: #111827;
  color: rgba(255, 255, 255, 0.7);
  padding: 3rem 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
  }
}

@media (min-width: 768px) {
  .footer-grid {
    padding: 0 2rem;
  }
}

.footer-col h4 {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  margin-bottom: 1rem;
  letter-spacing: -0.3px;
}

.footer-col p,
.footer-col a {
  font-size: 0.85rem;
  line-height: 1.7;
}

.footer-col a {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  display: block;
  margin-bottom: 0.4rem;
  transition: color var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 2.5rem;
  padding: 1.25rem 1rem;
  text-align: center;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
}

@media (min-width: 768px) {
  .footer-bottom {
    padding: 1.25rem 2rem;
  }
}

/* ============================================
   FLOATING CUSTOMER SERVICE
   ============================================ */
.floating-cs {
  position: fixed;
  right: 16px;
  bottom: 120px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

@media (min-width: 768px) {
  .floating-cs {
    right: 24px;
    bottom: 140px;
  }
}

.cs-item {
  width: 48px;
  height: 48px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  text-decoration: none;
  transition: all var(--transition);
  border: 1px solid rgba(0, 0, 0, 0.06);
}

.cs-item:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: translateX(-2px);
}

.cs-item .cs-icon {
  font-size: 1.2rem;
  color: var(--primary);
  transition: color var(--transition);
}

.cs-item:hover .cs-icon {
  color: #fff;
}

.cs-tooltip {
  position: absolute;
  right: 60px;
  background: var(--text-dark);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 500;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.cs-item:hover .cs-tooltip {
  opacity: 1;
}

.cs-wechat-qr {
  position: absolute;
  right: 60px;
  bottom: 0;
  width: 140px;
  height: 140px;
  background: #fff;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.4rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.cs-item.wechat:hover .cs-wechat-qr {
  opacity: 1;
}

.cs-wechat-qr .qr-placeholder {
  width: 90px;
  height: 90px;
  background: var(--bg-light);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
}

.cs-wechat-qr span {
  font-size: 0.7rem;
  color: var(--text-gray);
}

/* Back to top */
.cs-back-top {
  margin-top: 8px;
  background: var(--primary);
  color: #fff;
  border: none;
}

.cs-back-top .cs-icon {
  color: #fff;
}

.cs-back-top:hover {
  background: var(--primary-dark);
}

/* ============================================
   SCROLL REVEAL ANIMATION
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================================
   COUNTER SECTION (inline stats bar)
   ============================================ */
.stats-bar {
  background: var(--primary);
  padding: 2rem 1rem;
}

@media (min-width: 768px) {
  .stats-bar {
    padding: 2.5rem 2rem;
  }
}

.stats-bar-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  max-width: 1280px;
  margin: 0 auto;
}

@media (min-width: 640px) {
  .stats-bar-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat-item {
  text-align: center;
  color: #fff;
}

.stat-number {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 2rem;
  letter-spacing: -0.5px;
  line-height: 1;
}

.stat-number .plus {
  color: var(--gold);
}

.stat-label {
  font-size: 0.82rem;
  opacity: 0.8;
  margin-top: 0.3rem;
}

/* ============================================
   BREADCRUMB / PAGE HEADER (for subpages)
   ============================================ */
.page-header {
  background: linear-gradient(135deg, #f0f3f8 0%, #e8ecf2 100%);
  padding: 5rem 1rem 2.5rem;
  text-align: center;
}

@media (min-width: 768px) {
  .page-header {
    padding: 6rem 2rem 3rem;
  }
}

.page-header h1 {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 1.75rem;
  letter-spacing: -0.3px;
  color: var(--text-dark);
}

@media (min-width: 768px) {
  .page-header h1 {
    font-size: 2.25rem;
  }
}

.page-header .breadcrumb {
  font-size: 0.85rem;
  color: var(--text-gray);
  margin-top: 0.5rem;
}

.page-header .breadcrumb a {
  color: var(--primary);
  text-decoration: none;
}

/* ============================================
   PROCESS / TIMELINE
   ============================================ */
.process-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  max-width: 900px;
  margin: 0 auto;
}

@media (min-width: 640px) {
  .process-steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .process-steps {
    grid-template-columns: repeat(5, 1fr);
  }
}

.process-step {
  text-align: center;
  position: relative;
}

.process-step .step-number {
  width: 44px;
  height: 44px;
  margin: 0 auto 0.75rem;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
}

.process-step h4 {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-dark);
  margin-bottom: 0.3rem;
}

.process-step p {
  font-size: 0.8rem;
  color: var(--text-gray);
}

.process-step::after {
  content: '';
  position: absolute;
  top: 22px;
  right: -50%;
  width: 100%;
  height: 1.5px;
  background: rgba(25, 55, 96, 0.12);
  display: none;
}

@media (min-width: 640px) {
  .process-step::after {
    display: block;
  }
}

.process-step:last-child::after {
  display: none;
}

/* ============================================
   MISC UTILITIES
   ============================================ */
.text-primary { color: var(--primary); }
.text-gold { color: var(--gold); }
.text-blue { color: var(--blue); }
.bg-primary { background: var(--primary); }
.bg-light { background: var(--bg-light); }
.bg-gold { background: var(--gold); }

/* Success / Toast message */
.toast {
  position: fixed;
  top: 90px;
  left: 50%;
  transform: translateX(-50%);
  background: #10b981;
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9rem;
  z-index: 2000;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
}

/* Loading spinner */
.spinner {
  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;
  display: inline-block;
}

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