/* ============================================================
   Global Reset & Base
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
* { -webkit-tap-highlight-color: transparent; }

:root {
  --primary: #0A4C8A;
  --primary-light: #1A6EC5;
  --primary-dark: #063260;
  --accent: #00B4D8;
  --accent-light: #90E0EF;
  --white: #FFFFFF;
  --off-white: #F4F8FC;
  --gray-light: #E8EFF6;
  --gray: #8A9BB0;
  --gray-dark: #4A5568;
  --text: #1A2744;
  --text-light: #637086;
  --shadow: 0 4px 24px rgba(10,76,138,0.10);
  --shadow-lg: 0 8px 48px rgba(10,76,138,0.16);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
  --font-en: 'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-zh: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
}

html {
  scroll-behavior: auto;
  font-size: 16px;
  overflow-x: hidden;
}

body {
  font-family: var(--font-en);
  color: var(--text);
  background: var(--white);
  overflow-x: hidden;
  line-height: 1.7;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body.lang-zh { font-family: var(--font-zh); }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }

/* ============================================================
   Typography
   ============================================================ */
.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 700;
  color: var(--primary-dark);
  line-height: 1.25;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-light);
  max-width: 600px;
  line-height: 1.8;
}

.section-header { text-align: center; margin-bottom: 60px; }
.section-header .section-subtitle { margin: 0 auto; }

/* ============================================================
   Layout Utilities
   ============================================================ */
.container { max-width: 1280px; margin: 0 auto; padding: 0 32px; }
.section { padding: 100px 0; }
.section-alt { background: var(--off-white); }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  color: var(--white);
  box-shadow: 0 4px 20px rgba(10,76,138,0.30);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(10,76,138,0.40); }

.btn-outline {
  background: rgba(255,255,255,0.08);
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.55);
  backdrop-filter: blur(8px);
}
.btn-outline:hover { background: rgba(255,255,255,0.18); border-color: var(--white); transform: translateY(-2px); }

.btn-accent {
  background: linear-gradient(135deg, var(--accent), #0096C7);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(0,180,216,0.35);
}
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,180,216,0.45); }

/* ============================================================
   Navigation
   ============================================================ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: var(--transition);
  padding: 0;
}

#navbar.transparent {
  background: transparent;
}

#navbar.scrolled {
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
  height: 76px;
  display: flex;
  align-items: center;
  gap: 32px;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  padding: 2px 0;
  border-radius: 0;
  background: transparent;
  border: none;
  transition: var(--transition);
}
.nav-logo-mark {
  width: 44px;
  height: 44px;
  border-radius: 9px;
  overflow: hidden;
  background: transparent;
  border: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.nav-logo-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center top;
  mix-blend-mode: normal;
  filter: saturate(1.04) brightness(1.08);
}
#navbar.transparent .nav-logo {
  padding: 4px 8px 4px 4px;
  border-radius: 10px;
  background: rgba(255,255,255,0.96);
  border: 1px solid rgba(10,76,138,0.16);
  box-shadow: 0 8px 22px rgba(3, 24, 46, 0.28);
}
#navbar.transparent .nav-logo-mark {
  background: #fff;
  border: 1px solid rgba(10,76,138,0.14);
  box-shadow: none;
}
#navbar.transparent .nav-logo-img {
  filter: none;
}
#navbar.transparent .nav-logo-name {
  color: var(--primary-dark);
  text-shadow: none;
}
#navbar.transparent .nav-logo-sub {
  color: #4f6280;
  text-shadow: none;
}
.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.06;
  padding-top: 2px;
}
.nav-logo-name {
  font-size: 1.02rem;
  font-weight: 800;
  color: var(--white);
  text-shadow: 0 2px 8px rgba(3, 24, 46, 0.4);
  transition: var(--transition);
}
.nav-logo-sub {
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  text-transform: none;
  color: rgba(255,255,255,0.82);
  margin-top: 2px;
  text-shadow: 0 2px 8px rgba(3, 24, 46, 0.4);
  transition: var(--transition);
}
#navbar.scrolled .nav-logo-name { color: var(--primary-dark); }
#navbar.scrolled .nav-logo-sub { color: var(--gray); }
#navbar.scrolled .nav-logo {
  background: transparent;
  border-color: transparent;
}
#navbar.scrolled .nav-logo-mark {
  box-shadow: none;
}
#navbar.scrolled .nav-logo-img {
  filter: saturate(1.02) brightness(1);
}
#navbar.scrolled .nav-logo-name,
#navbar.scrolled .nav-logo-sub {
  text-shadow: none;
}

/* Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.92rem;
  font-weight: 500;
  color: rgba(255,255,255,0.9);
  transition: var(--transition);
  white-space: nowrap;
}
.nav-link:hover { color: var(--white); background: rgba(255,255,255,0.12); }
.nav-link .chevron { font-size: 0.65rem; transition: var(--transition); }
.nav-item:hover .chevron { transform: rotate(180deg); }

#navbar.scrolled .nav-link { color: var(--gray-dark); }
#navbar.scrolled .nav-link:hover { color: var(--primary); background: var(--off-white); }

/* Dropdown */
.dropdown {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-light);
  min-width: 200px;
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(-8px);
  transition: var(--transition);
  z-index: 100;
}
.nav-item:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.dropdown a {
  display: block;
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 0.88rem;
  color: var(--gray-dark);
  transition: var(--transition);
}
.dropdown a:hover { background: var(--off-white); color: var(--primary); padding-left: 22px; }

/* Nav Right */
.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

/* Language Toggle */
.lang-toggle {
  display: flex;
  border: 1px solid rgba(255,255,255,0.4);
  border-radius: 20px;
  overflow: hidden;
}
#navbar.scrolled .lang-toggle { border-color: var(--gray-light); }

.lang-btn {
  padding: 5px 14px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  background: transparent;
  color: rgba(255,255,255,0.7);
  transition: var(--transition);
}
.lang-btn.active {
  background: var(--accent);
  color: var(--white);
}
#navbar.scrolled .lang-btn { color: var(--gray); }
#navbar.scrolled .lang-btn.active { color: var(--white); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  border: none;
  background: transparent;
  color: rgba(255,255,255,0.96);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.25s ease, border-color 0.25s ease, color 0.2s ease;
}
.hamburger span {
  width: 20px;
  height: 2.4px;
  background: currentColor;
  border-radius: 999px;
  transition: transform 0.24s ease, opacity 0.2s ease, width 0.2s ease;
}
.hamburger span:nth-child(2) { width: 14px; }
#navbar.scrolled .hamburger { color: var(--primary-dark); }

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 76px; left: 0; right: 0; bottom: 0;
  background: var(--white);
  z-index: 999;
  overflow-y: auto;
  padding: 24px;
}
.mobile-menu.open { display: block; }
.mobile-nav-item { border-bottom: 1px solid var(--gray-light); }
.mobile-nav-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
}
.mobile-home-link { display: block; }
.mobile-sub {
  display: none;
  padding: 0 0 12px 16px;
}
.mobile-sub.open { display: block; }
.mobile-sub a {
  display: block;
  padding: 13px 0;
  color: var(--text-light);
  font-size: 0.95rem;
  border-bottom: 1px solid var(--gray-light);
  min-height: 44px;
  display: flex;
  align-items: center;
}
.mobile-sub a:last-child { border-bottom: none; }
.mobile-menu-footer {
  padding: 16px 0 10px;
  margin-top: 8px;
  border-top: 1px solid var(--gray-light);
}

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

.hero-slides {
  position: absolute;
  inset: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.2s ease;
  background-size: cover;
  background-position: center;
}
.hero-slide.active { opacity: 1; }

/* Hero slide backgrounds */
.hero-slide:nth-child(1) {
  background-image:
    radial-gradient(ellipse at 70% 50%, rgba(0,180,216,0.35) 0%, transparent 60%),
    radial-gradient(ellipse at 20% 80%, rgba(26,110,197,0.3) 0%, transparent 55%),
    linear-gradient(135deg, #063260 0%, #0A4C8A 55%, #1A6EC5 100%);
}
.hero-slide:nth-child(2) {
  background-image:
    radial-gradient(ellipse at 80% 30%, rgba(144,224,239,0.25) 0%, transparent 50%),
    radial-gradient(ellipse at 10% 60%, rgba(0,150,199,0.30) 0%, transparent 50%),
    linear-gradient(160deg, #0A4C8A 0%, #063260 40%, #00B4D8 100%);
}
.hero-slide:nth-child(3) {
  background-image:
    radial-gradient(ellipse at 60% 40%, rgba(0,180,216,0.30) 0%, transparent 55%),
    radial-gradient(ellipse at 90% 70%, rgba(26,110,197,0.25) 0%, transparent 50%),
    linear-gradient(150deg, #1A2744 0%, #0A4C8A 50%, #00B4D8 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 120px 48px 80px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(0,180,216,0.18);
  border: 1px solid rgba(0,180,216,0.45);
  backdrop-filter: blur(12px);
  border-radius: 50px;
  padding: 9px 22px 9px 16px;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent-light);
  text-transform: uppercase;
  margin-bottom: 32px;
  white-space: nowrap;
  max-width: fit-content;
}
.hero-badge .dot {
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
  flex-shrink: 0;
  display: inline-block;
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 4.5rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 24px;
  max-width: 760px;
}
.hero-title em { font-style: normal; color: var(--accent-light); }

.hero-desc {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  color: rgba(255,255,255,0.80);
  max-width: 580px;
  line-height: 1.8;
  margin-bottom: 40px;
}

.hero-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }

.hero-stats {
  display: flex;
  gap: 0;
  flex-wrap: wrap;
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 32px;
}
.hero-stat {
  text-align: left;
  padding-right: 40px;
  margin-right: 40px;
  border-right: 1px solid rgba(255,255,255,0.15);
}
.hero-stat:last-child {
  border-right: none;
  padding-right: 0;
  margin-right: 0;
}
.hero-stat-num {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
  margin-bottom: 6px;
}
.hero-stat-num em { font-style: normal; color: var(--accent); }
.hero-stat-label {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.60);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 500;
}

/* Hero slide indicators */
.hero-dots {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  gap: 10px;
}
.hero-dot {
  width: 8px; height: 8px;
  background: rgba(255,255,255,0.4);
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition);
}
.hero-dot.active { background: var(--accent); width: 28px; border-radius: 4px; }

/* Scroll hint */
.scroll-hint {
  position: absolute;
  bottom: 44px;
  right: 60px;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.5);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.scroll-line {
  width: 1px; height: 48px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
  animation: scrollDown 2s infinite;
}

@keyframes scrollDown {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

/* ============================================================
   Services Overview (Homepage)
   ============================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
/* Homepage & pages with 6 tiles: 3 per row */
.services-grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.service-card {
  background: var(--white);
  border: 1px solid var(--gray-light);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-light), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}
.service-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-6px); border-color: transparent; }
.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  width: 64px; height: 64px;
  background: linear-gradient(135deg, var(--off-white), var(--gray-light));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 20px;
  transition: var(--transition);
}
.service-card:hover .service-icon {
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
}

.service-card h3 { font-size: 1.15rem; font-weight: 700; color: var(--primary-dark); margin-bottom: 12px; }
.service-card p { font-size: 0.9rem; color: var(--text-light); line-height: 1.7; margin-bottom: 20px; }
.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary-light);
  transition: var(--transition);
}
.service-link:hover { gap: 10px; color: var(--accent); }

/* ============================================================
   Why Choose Us
   ============================================================ */
.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.why-image-stack {
  position: relative;
  height: 540px;
}
.why-img-main {
  position: absolute;
  top: 0; left: 0;
  width: 75%;
  height: 85%;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.why-img-accent {
  position: absolute;
  bottom: 0; right: 0;
  width: 55%;
  height: 55%;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--accent) 0%, var(--primary-light) 100%);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 4px solid var(--white);
}
.why-img-placeholder {
  width: 100%; height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  opacity: 0.5;
}
.why-badge {
  position: absolute;
  top: 50%;
  left: -32px;
  transform: translateY(-50%);
  background: var(--white);
  border-radius: var(--radius);
  padding: 20px 24px;
  box-shadow: var(--shadow-lg);
  text-align: center;
  z-index: 2;
}
.why-badge-num { font-size: 2rem; font-weight: 800; color: var(--primary); line-height: 1; }
.why-badge-label { font-size: 0.75rem; color: var(--text-light); margin-top: 4px; }

.features-list { display: flex; flex-direction: column; gap: 24px; margin-top: 40px; }
.feature-item { display: flex; gap: 16px; align-items: flex-start; }
.feature-icon {
  width: 48px; height: 48px;
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--white);
}
.feature-item h4 { font-size: 1rem; font-weight: 700; color: var(--primary-dark); margin-bottom: 6px; }
.feature-item p { font-size: 0.88rem; color: var(--text-light); line-height: 1.6; }

/* ============================================================
   Gallery / Media Section
   ============================================================ */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 16px;
}
.gallery-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  background: var(--gray-light);
}
.gallery-item:first-child {
  grid-column: span 2;
  grid-row: span 2;
}
.gallery-placeholder {
  width: 100%;
  padding-top: 65%;
  position: relative;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}
.gallery-item:first-child .gallery-placeholder { padding-top: 70%; }
.gallery-placeholder-inner {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: rgba(255,255,255,0.6);
  font-size: 0.85rem;
}
.gallery-placeholder-inner span { font-size: 2.5rem; }
.gallery-overlay {
  position: absolute;
  inset: 0;
  background: rgba(6,50,96,0.65);
  opacity: 0;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 8px;
  color: var(--white);
}
.gallery-item:hover .gallery-overlay { opacity: 1; }
.gallery-zoom-icon { font-size: 2rem; }
.gallery-caption { font-size: 0.85rem; font-weight: 600; }

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.93);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
}
.lightbox.open { display: flex; }
.lightbox-inner {
  max-width: 90vw;
  max-height: 90vh;
  position: relative;
}
.lightbox-close {
  position: absolute;
  top: -48px; right: 0;
  color: var(--white);
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
}
.lightbox-img {
  max-width: 90vw;
  max-height: 80vh;
  border-radius: var(--radius);
}

/* ============================================================
   Process / Steps
   ============================================================ */
.steps-row {
  display: flex;
  gap: 0;
  position: relative;
  counter-reset: step;
}
.steps-row::before {
  content: '';
  position: absolute;
  top: 40px;
  left: calc(12.5% + 20px);
  right: calc(12.5% + 20px);
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--primary-light));
}
.step-item {
  flex: 1;
  text-align: center;
  padding: 0 16px;
  position: relative;
}
.step-circle {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  color: var(--white);
  font-size: 1.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  box-shadow: 0 8px 24px rgba(10,76,138,0.30);
  position: relative;
  z-index: 1;
}
.step-item h4 { font-size: 1rem; font-weight: 700; color: var(--primary-dark); margin-bottom: 8px; }
.step-item p { font-size: 0.85rem; color: var(--text-light); }

/* ============================================================
   Testimonials
   ============================================================ */
.testimonials-track {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-light);
}
.testimonial-stars { color: #F59E0B; font-size: 1.1rem; margin-bottom: 16px; }
.testimonial-text { font-size: 0.92rem; color: var(--text-light); line-height: 1.8; margin-bottom: 20px; font-style: italic; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--white);
  font-weight: 700;
}
.testimonial-name { font-weight: 700; font-size: 0.9rem; color: var(--text); }
.testimonial-origin { font-size: 0.78rem; color: var(--gray); }

/* ============================================================
   CTA Banner
   ============================================================ */
.cta-banner {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  border-radius: var(--radius-lg);
  padding: 80px 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: rgba(0,180,216,0.15);
}
.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -80px; left: -40px;
  width: 240px; height: 240px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
}
.cta-banner h2 { font-size: clamp(1.8rem, 3vw, 2.8rem); font-weight: 800; color: var(--white); margin-bottom: 16px; position: relative; z-index: 1; }
.cta-banner p { color: rgba(255,255,255,0.80); max-width: 540px; margin: 0 auto 36px; position: relative; z-index: 1; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 1; }

/* ============================================================
   Page Hero (inner pages)
   ============================================================ */
.page-hero {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
  padding: 160px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: -100px; left: -100px;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: rgba(0,180,216,0.10);
}
.page-hero::after {
  content: '';
  position: absolute;
  bottom: -80px; right: -80px;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
}
.page-hero-content { position: relative; z-index: 1; }
.page-hero h1 { font-size: clamp(2rem, 4vw, 3.5rem); font-weight: 800; color: var(--white); margin-bottom: 16px; }
.page-hero p { font-size: 1.1rem; color: rgba(255,255,255,0.8); max-width: 600px; margin: 0 auto; }
.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 24px;
}
.breadcrumb a { color: var(--accent-light); }
.breadcrumb span { color: rgba(255,255,255,0.4); }

/* ============================================================
   Service Detail Cards
   ============================================================ */
.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}
.detail-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-light);
  transition: var(--transition);
}
.detail-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.detail-card-img {
  height: 220px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  position: relative;
}
.detail-card-body { padding: 28px; }
.detail-card-body h3 { font-size: 1.2rem; font-weight: 700; color: var(--primary-dark); margin-bottom: 12px; }
.detail-card-body p { font-size: 0.9rem; color: var(--text-light); line-height: 1.7; margin-bottom: 16px; }
.detail-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.detail-tag {
  padding: 4px 12px;
  background: var(--off-white);
  color: var(--primary-light);
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
  border: 1px solid var(--gray-light);
}

/* ============================================================
   Accordion / FAQ
   ============================================================ */
.accordion { display: flex; flex-direction: column; gap: 12px; }
.accordion-item {
  border: 1px solid var(--gray-light);
  border-radius: var(--radius);
  overflow: hidden;
}
.accordion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  cursor: pointer;
  background: var(--white);
  transition: var(--transition);
  font-weight: 600;
  color: var(--text);
}
.accordion-header:hover { background: var(--off-white); }
.accordion-icon {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--off-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  line-height: 1;
  flex-shrink: 0;
  transition: var(--transition);
}
.accordion-item.open .accordion-icon { transform: rotate(45deg); background: var(--accent); color: var(--white); }
.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.accordion-item.open .accordion-body { max-height: 400px; }
.accordion-body-inner { padding: 0 24px 20px; color: var(--text-light); font-size: 0.92rem; line-height: 1.8; }

/* ============================================================
   Team / About
   ============================================================ */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 28px;
}
.team-card {
  text-align: center;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px 24px 28px;
  border: 1px solid var(--gray-light);
  transition: var(--transition);
}
.team-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.team-avatar {
  width: 88px; height: 88px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  color: var(--white);
  border: 4px solid var(--white);
  box-shadow: var(--shadow);
}
.team-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--primary-dark); margin-bottom: 4px; }
.team-card .role { font-size: 0.82rem; color: var(--accent); font-weight: 600; margin-bottom: 12px; }
.team-card p { font-size: 0.85rem; color: var(--text-light); line-height: 1.6; }

/* ============================================================
   Floating Contact Widget
   ============================================================ */
#contact-float {
  position: fixed;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 800;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.float-item {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0;
}

.float-btn {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(10,76,138,0.35);
  transition: var(--transition);
  flex-shrink: 0;
  border: none;
  text-decoration: none;
}
.float-btn:hover { transform: scale(1.12); box-shadow: 0 8px 28px rgba(10,76,138,0.45); }

.float-btn.phone { background: linear-gradient(135deg, #1A6EC5, #063260); }
.float-btn.wechat { background: linear-gradient(135deg, #07C160, #049549); }
.float-btn.email { background: linear-gradient(135deg, var(--accent), #0096C7); }
.float-btn.top { background: linear-gradient(135deg, var(--gray-dark), #2d3748); }

.float-tooltip {
  position: absolute;
  right: 64px;
  background: var(--primary-dark);
  color: var(--white);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 0.8rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transform: translateX(8px);
  transition: var(--transition);
  box-shadow: var(--shadow);
}
.float-tooltip::after {
  content: '';
  position: absolute;
  right: -6px;
  top: 50%;
  transform: translateY(-50%);
  border: 6px solid transparent;
  border-left-color: var(--primary-dark);
  border-right-width: 0;
}
.float-item:hover .float-tooltip { opacity: 1; transform: translateX(0); }

/* Phone popup */
.float-phone-popup {
  position: absolute;
  right: 64px;
  background: var(--white);
  border-radius: var(--radius);
  padding: 16px 20px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-light);
  min-width: 220px;
  display: none;
}
.float-phone-popup.open { display: block; }
.float-phone-popup h4 { font-size: 0.78rem; color: var(--gray); font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 10px; }
.float-phone-popup a {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--primary-dark);
  font-weight: 600;
  padding: 6px 0;
  border-bottom: 1px solid var(--gray-light);
  transition: var(--transition);
}
.float-phone-popup a:last-child { border-bottom: none; }
.float-phone-popup a:hover { color: var(--accent); }
.float-phone-popup a span { font-size: 1rem; }

/* ============================================================
   Footer
   ============================================================ */
footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.75);
  border-top: 1px solid rgba(255,255,255,0.08);
}

.footer-bottom {
  padding: 18px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.82rem;
}
.footer-bottom a { color: rgba(255,255,255,0.55); transition: var(--transition); }
.footer-bottom a:hover { color: var(--accent); }

/* ============================================================
   Animations & Reveal
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s 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; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1280px) {
  .nav-inner { padding: 0 24px; gap: 20px; }
  .nav-link { padding: 8px 12px; font-size: 0.88rem; }
  .nav-right { gap: 8px; }
  .nav-right .btn { padding: 11px 20px; font-size: 0.88rem; }
  .hero-content { padding: 120px 40px 80px; }
}

@media (max-width: 1024px) {
  .why-grid { grid-template-columns: 1fr; gap: 48px; }
  .why-image-stack { height: 360px; }
  .why-badge { left: 16px; }
  .steps-row { flex-wrap: wrap; gap: 32px; }
  .steps-row::before { display: none; }
}

@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .section { padding: 56px 0; }
  .nav-menu, .nav-right .btn { display: none; }
  .hamburger {
    display: flex;
    width: 46px;
    height: 46px;
    padding: 0;
    border-radius: 13px;
    border: 1px solid rgba(144,224,239,0.36);
    background: linear-gradient(145deg, rgba(4,39,79,0.94) 0%, rgba(10,76,138,0.92) 100%);
    color: rgba(236,248,255,0.96);
    box-shadow: 0 7px 18px rgba(6,50,96,0.3), inset 0 1px 0 rgba(255,255,255,0.08);
    backdrop-filter: blur(8px);
  }
  .hamburger:hover {
    transform: translateY(-1px);
    border-color: rgba(144,224,239,0.56);
    box-shadow: 0 10px 22px rgba(6,50,96,0.36), inset 0 1px 0 rgba(255,255,255,0.12);
  }
  .hamburger.open {
    background: linear-gradient(135deg, #063260 0%, #0B5EA8 100%);
    border-color: rgba(144,224,239,0.78);
    color: var(--white);
  }
  .hamburger.open span:nth-child(1) {
    width: 20px;
    transform: translateY(7px) rotate(45deg);
  }
  .hamburger.open span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0.2);
  }
  .hamburger.open span:nth-child(3) {
    width: 20px;
    transform: translateY(-7px) rotate(-45deg);
  }
  #navbar.scrolled .hamburger {
    background: linear-gradient(145deg, rgba(6,50,96,0.9) 0%, rgba(10,76,138,0.88) 100%);
    border-color: rgba(10,76,138,0.32);
    color: rgba(236,248,255,0.98);
    box-shadow: 0 6px 15px rgba(10,76,138,0.2);
  }

  .mobile-menu {
    background: linear-gradient(180deg, #f1f7ff 0%, #ffffff 46%, #f7fbff 100%);
    border-top: 1px solid rgba(10,76,138,0.12);
  }
  .mobile-nav-item { border-bottom: 1px solid rgba(10,76,138,0.1); }
  .mobile-nav-link { color: var(--primary-dark); }
  .mobile-sub { padding-left: 14px; }
  .mobile-sub a {
    color: #4f6280;
    border-bottom: 1px dashed rgba(10,76,138,0.12);
  }
  .mobile-sub a:hover { color: var(--primary); }
  .mobile-menu-footer {
    border-top-color: rgba(10,76,138,0.16);
    background: rgba(255,255,255,0.54);
    border-radius: 12px;
    padding: 14px 12px 10px;
  }

  footer {
    background: linear-gradient(135deg, #05284d 0%, #0a4c8a 55%, #1a6ec5 100%);
    border-top: 1px solid rgba(144,224,239,0.35);
  }
  .footer-bottom { color: rgba(255,255,255,0.84); }
  .footer-bottom a { color: rgba(196,236,247,0.9); }
  .footer-bottom a:hover { color: var(--white); }

  .nav-inner { gap: 12px; padding: 0 16px; }
  .nav-logo { padding: 2px 0; gap: 8px; }
  .nav-logo-mark { width: 38px; height: 38px; border-radius: 8px; }
  .nav-logo-name { font-size: 0.9rem; }
  .nav-logo-sub { font-size: 0.52rem; letter-spacing: 0.06em; }
  .hero-content { padding: 100px 16px 52px; }
  .hero-stats { gap: 0; flex-wrap: wrap; }
  .hero-stat { padding-right: 20px; margin-right: 20px; margin-bottom: 16px; }
  .hero-stat-num { font-size: 1.8rem; }
  .testimonials-track { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr 1fr; }
  .gallery-item:first-child { grid-column: span 2; grid-row: span 1; }
  .footer-bottom { flex-direction: column; text-align: center; gap: 8px; }
  #contact-float { right: 10px; gap: 8px; }
  .float-btn { width: 48px; height: 48px; font-size: 1.15rem; }
  .float-tooltip { display: none; }
  .float-phone-popup { right: 60px; min-width: 180px; }
  .cta-banner { padding: 40px 20px; }
  .cta-banner h2 { font-size: clamp(1.5rem, 5vw, 2rem); }
  .cta-actions { flex-direction: column; align-items: center; }
  .cta-actions .btn { width: 100%; max-width: 320px; justify-content: center; }
  .page-hero { padding: 120px 0 56px; }
  .page-hero p { font-size: 0.95rem; padding: 0 8px; }
  .section-header { margin-bottom: 36px; }
  .section-subtitle { font-size: 0.95rem; }
  .service-card { padding: 28px 20px; }
  .services-grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .detail-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr 1fr; }
  .steps-row { gap: 24px; }
  .step-circle { width: 64px; height: 64px; font-size: 1.3rem; }
  .accordion-header { padding: 16px 18px; font-size: 0.95rem; }
  .accordion-body-inner { padding: 0 18px 16px; }
  .scroll-hint { display: none; }
}

@media (max-width: 480px) {
  .container { padding: 0 14px; }
  .section { padding: 44px 0; }
  .mobile-menu {
    background: linear-gradient(180deg, #edf6ff 0%, #ffffff 52%, #f5faff 100%);
  }
  .nav-logo { padding: 2px 0; border-radius: 0; }
  .nav-logo-mark { width: 34px; height: 34px; border-radius: 7px; }
  .nav-logo-text { display: none; }
  .hero-content { padding: 88px 14px 44px; }
  .hero-badge { font-size: 0.68rem; padding: 7px 14px 7px 12px; }
  .hero-stats { border-top: 1px solid rgba(255,255,255,0.15); }
  .hero-stat { border-right: none; padding-right: 0; margin-right: 16px; }
  .hero-stat-num { font-size: 1.6rem; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .services-grid { grid-template-columns: 1fr; }
  .services-grid--3 { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .section-title { font-size: clamp(1.5rem, 6vw, 2rem); }
  .section-header { margin-bottom: 28px; }
  .service-card { padding: 24px 16px; }
  .service-icon { font-size: 2rem; margin-bottom: 12px; }
  .detail-card-body { padding: 20px 16px; }
  .cta-banner { padding: 32px 16px; border-radius: var(--radius); }
  .page-hero { padding: 100px 0 44px; }
  .page-hero h1 { font-size: clamp(1.6rem, 7vw, 2.5rem); }
  #contact-float { right: 8px; }
  .float-btn { width: 44px; height: 44px; font-size: 1rem; }
  .mobile-menu { padding: 16px; }
  .mobile-nav-link { font-size: 1rem; }
  .testimonial-card { padding: 24px 18px; }
  .why-image-stack { height: 260px; }
  .why-badge { left: 8px; padding: 14px 16px; }
  .why-badge-num { font-size: 1.6rem; }
  .steps-row { gap: 16px; }
  .step-item { padding: 0 8px; }
}

/* ============================================================
   About: China section image harmony
   ============================================================ */
#china div[style*="display:grid;grid-template-columns:1fr 1fr;min-height:200px;"],
#china div[style*="display:grid;grid-template-columns:1fr 1fr;min-height:180px;"],
#china div[style*="display:grid;grid-template-columns:1fr;min-height:180px;"] {
  min-height: unset !important;
  gap: 10px;
  padding: 10px;
}

#china div[style*="display:grid;grid-template-columns:1fr 1fr;min-height:200px;"] > div[style*="overflow:hidden;"],
#china div[style*="display:grid;grid-template-columns:1fr 1fr;min-height:180px;"] > div[style*="overflow:hidden;"],
#china div[style*="display:grid;grid-template-columns:1fr;min-height:180px;"] > div[style*="overflow:hidden;"] {
  border-radius: 12px;
  background: #f3f6fb;
}

#china div[style*="display:grid;grid-template-columns:1fr 1fr;min-height:200px;"] img,
#china div[style*="display:grid;grid-template-columns:1fr 1fr;min-height:180px;"] img,
#china div[style*="display:grid;grid-template-columns:1fr;min-height:180px;"] img {
  width: 100%;
  height: auto !important;
  aspect-ratio: 4 / 3;
  object-fit: cover !important;
  transition: transform 0.45s ease;
}

#china div[style*="display:grid;grid-template-columns:1fr 1fr;min-height:200px;"] > div[style*="overflow:hidden;"]:hover img,
#china div[style*="display:grid;grid-template-columns:1fr 1fr;min-height:180px;"] > div[style*="overflow:hidden;"]:hover img,
#china div[style*="display:grid;grid-template-columns:1fr;min-height:180px;"] > div[style*="overflow:hidden;"]:hover img {
  transform: scale(1.04);
}

@media (max-width: 768px) {
  #china div[style*="display:grid;grid-template-columns:1fr 1fr;min-height:200px;"],
  #china div[style*="display:grid;grid-template-columns:1fr 1fr;min-height:180px;"] {
    grid-template-columns: 1fr !important;
  }
  #china div[style*="display:grid;grid-template-columns:1fr 1fr;min-height:200px;"] img,
  #china div[style*="display:grid;grid-template-columns:1fr 1fr;min-height:180px;"] img,
  #china div[style*="display:grid;grid-template-columns:1fr;min-height:180px;"] img {
    aspect-ratio: 16 / 10;
  }
}

/* ============================================================
   Utility: Responsive Grid Helpers (for inline-styled grids)
   ============================================================ */
.grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.grid-3col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.grid-4col {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

@media (max-width: 768px) {
  .grid-2col { grid-template-columns: 1fr; gap: 20px; }
  .grid-3col { grid-template-columns: 1fr 1fr; gap: 16px; }
  .grid-4col { grid-template-columns: 1fr 1fr; gap: 16px; }
}
@media (max-width: 480px) {
  .grid-2col { gap: 14px; }
  .grid-3col { grid-template-columns: 1fr; gap: 12px; }
  .grid-4col { grid-template-columns: 1fr 1fr; gap: 12px; }
}