:root {
  --qt-primary: #0EA5A4;
  --qt-secondary: #087E7E;
  --qt-accent: #F97316;
  --qt-text: #0F172A;
  --qt-text-secondary: #475569;
  --qt-bg: #FFFFFF;
  --qt-bg-dark: #0B2E32;
  --qt-border: #D8E6E7;
  --qt-gradient-start: #0EA5A4;
  --qt-gradient-end: #34D399;
  --qt-bg-alt: #F7FAFA;
  --qt-white: #FFFFFF;
  --qt-shadow: rgba(11, 46, 50, 0.14);
  --qt-glass-bg: rgba(255, 255, 255, 0.22);
  --qt-glass-border: rgba(255, 255, 255, 0.34);
  --qt-ease: cubic-bezier(0.25, 1, 0.5, 1);
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body.qt-body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--qt-bg);
  color: var(--qt-text);
  line-height: 1.7;
  overflow-x: hidden;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  max-width: 100%;
  display: block;
}
h1, h2, h3, h4, h5, p {
  margin: 0;
}
.qt-scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: calc(var(--scroll-progress, 0) * 100%);
  height: 4px;
  background: linear-gradient(90deg, var(--qt-primary), var(--qt-accent));
  z-index: 1060;
}
.qt-flame-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
}
.qt-flame-canvas.is-hidden,
.qt-flame-toggle.is-hidden {
  display: none;
}
.qt-flame-toggle {
  position: fixed;
  left: 20px;
  bottom: 20px;
  z-index: 10000;
  min-width: 44px;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--qt-border);
  background: rgba(255, 255, 255, 0.82);
  color: var(--qt-primary);
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 10px 24px var(--qt-shadow);
}
.qt-flame-toggle.is-off {
  opacity: 0.55;
}
.qt-toast-wrap {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 12000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.qt-toast {
  padding: 12px 18px;
  border-radius: 999px;
  font-size: 0.95rem;
  color: var(--qt-text);
  animation: qtToastIn 0.35s var(--qt-ease);
}
.qt-toast.is-hide {
  opacity: 0;
  transform: translateY(10px);
  transition: 0.4s var(--qt-ease);
}
.qt-main-nav {
  position: sticky;
  top: 0;
  z-index: 1050;
  min-height: 96px;
  border-bottom: 1px solid var(--qt-glass-border);
  transition: min-height 0.35s var(--qt-ease), box-shadow 0.35s var(--qt-ease), background 0.35s var(--qt-ease);
}
.qt-main-nav.is-scrolled {
  min-height: 72px;
  box-shadow: 0 12px 30px var(--qt-shadow);
}
.qt-brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--qt-primary);
  transition: transform 0.3s var(--qt-ease), color 0.3s var(--qt-ease);
}
.qt-brand-logo:hover {
  transform: scale(1.02);
  color: var(--qt-secondary);
}
.qt-brand-logo-img {
  height: 46px;
  width: auto;
  max-width: 140px;
  object-fit: contain;
}
.qt-brand-logo-text {
  white-space: nowrap;
}
.qt-nav-toggler {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--qt-border);
  background: rgba(255, 255, 255, 0.72);
  color: var(--qt-primary);
  font-size: 1.5rem;
}
.qt-nav-toggler:hover {
  background: var(--qt-primary);
  color: var(--qt-white);
}
.qt-nav-collapse {
  margin-left: auto;
}
.qt-nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.qt-nav-links .nav-item {
  margin: 0;
}
.qt-nav-links .nav-link {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--qt-text);
  font-weight: 700;
  padding: 0.5rem 0;
  transition: color 0.3s var(--qt-ease);
}
.qt-nav-links .nav-link:hover,
.qt-nav-links .nav-link.active {
  color: var(--qt-primary);
}
.qt-nav-links .nav-item.active .nav-link {
  font-weight: 800;
}
.qt-nav-cta {
  margin-left: 1rem;
}
.qt-nav-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 1.25rem;
  border-radius: 999px;
  background: var(--qt-accent);
  color: var(--qt-white);
  font-weight: 800;
  transition: transform 0.3s var(--qt-ease), box-shadow 0.3s var(--qt-ease);
}
.qt-nav-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(249, 115, 22, 0.28);
}
.qt-site-main {
  overflow-x: hidden;
}
.qt-site-main > section:nth-of-type(odd) {
  padding: 12vh 0;
  min-height: 60vh;
  background: var(--qt-bg);
}
.qt-site-main > section:nth-of-type(even) {
  padding: 4vh 0;
  background: var(--qt-bg-alt);
}
.qt-hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--qt-bg-dark);
  color: var(--qt-white);
  overflow: hidden;
}
.qt-hero-section::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(11, 46, 50, 0.88), rgba(14, 165, 164, 0.55));
}
.qt-hero-carousel {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}
.qt-hero-carousel .carousel-inner,
.qt-hero-carousel .carousel-item {
  height: 100%;
}
.qt-carousel-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.qt-carousel-control {
  z-index: 2;
}
.qt-hero-content {
  position: relative;
  z-index: 2;
}
.qt-hero-glass {
  padding: 2rem;
  border-radius: 24px;
  color: var(--qt-white);
}
.qt-hero-kicker {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--qt-accent);
  font-weight: 800;
}
.qt-hero-title {
  margin: 0.75rem 0;
  font-size: clamp(2.2rem, 5vw, 4.1rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}
.qt-hero-subtitle {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #D7EDEB;
}
.qt-hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}
.qt-primary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 1.75rem;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--qt-primary), var(--qt-secondary));
  color: var(--qt-white);
  font-weight: 800;
  box-shadow: 0 12px 28px rgba(14, 165, 164, 0.28);
  transition: transform 0.3s var(--qt-ease), box-shadow 0.3s var(--qt-ease);
}
.qt-primary-btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 36px rgba(14, 165, 164, 0.34);
}
.qt-outline-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 1.75rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  color: var(--qt-white);
  background: rgba(255, 255, 255, 0.12);
  font-weight: 700;
  transition: transform 0.3s var(--qt-ease), background 0.3s var(--qt-ease);
}
.qt-outline-btn:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.22);
}
.qt-outline-btn-dark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 1.75rem;
  border-radius: 999px;
  border: 1px solid var(--qt-border);
  color: var(--qt-primary);
  background: var(--qt-white);
  font-weight: 700;
  transition: transform 0.3s var(--qt-ease), border-color 0.3s var(--qt-ease);
}
.qt-outline-btn-dark:hover {
  transform: translateY(-4px);
  border-color: var(--qt-primary);
}
.qt-hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}
.qt-stat {
  padding: 1.25rem;
  border-radius: 16px;
  color: var(--qt-white);
  text-align: center;
}
.qt-stat-value {
  display: block;
  font-size: 1.8rem;
  font-weight: 800;
}
.qt-stat-label {
  font-size: 0.85rem;
  opacity: 0.9;
}
.qt-wave-section {
  overflow: hidden;
}
.qt-wave-wrap {
  position: relative;
}
.qt-wave-svg {
  width: 100%;
  height: 140px;
  overflow: visible;
}
.qt-wave-path {
  fill: none;
  stroke: rgba(14, 165, 164, 0.25);
  stroke-width: 2;
}
.qt-wave-text {
  font-size: 24px;
  font-weight: 800;
  fill: var(--qt-primary);
  letter-spacing: 0.06em;
}
.qt-wave-textPath {
  font-size: 24px;
}
.qt-wave-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.qt-section-head {
  max-width: 760px;
  margin: 0 auto 3rem;
  text-align: center;
}
.qt-section-kicker {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--qt-primary);
  font-weight: 800;
}
.qt-section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0.75rem 0;
  line-height: 1.25;
}
.qt-section-desc {
  color: var(--qt-text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
}
.qt-service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}
.qt-flip-card {
  position: relative;
  perspective: 1000px;
  min-height: 340px;
  transition: transform 0.3s var(--qt-ease);
}
.qt-flip-card:hover,
.qt-flip-card:focus-within {
  transform: translateY(-4px);
}
.qt-flip-inner {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  transition: transform 0.6s var(--qt-ease);
}
.qt-flip-card:hover .qt-flip-inner,
.qt-flip-card:focus-within .qt-flip-inner {
  transform: rotateY(180deg);
}
.qt-flip-face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  border-radius: 16px;
  border: 1px solid var(--qt-border);
  background: var(--qt-white);
  overflow: hidden;
}
.qt-flip-back {
  transform: rotateY(180deg);
}
.qt-service-face {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 2rem;
}
.qt-flip-card:hover .qt-service-face {
  border-color: var(--qt-primary);
}
.qt-service-number {
  font-size: 3rem;
  color: rgba(14, 165, 164, 0.1);
  font-weight: 800;
  line-height: 1;
}
.qt-service-icon {
  font-size: 2rem;
  color: var(--qt-primary);
}
.qt-service-title {
  font-size: 1.25rem;
  font-weight: 800;
  line-height: 1.35;
}
.qt-service-desc {
  color: var(--qt-text-secondary);
  line-height: 1.7;
}
.qt-service-detail-list {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--qt-text-secondary);
}
.qt-service-detail-list li {
  margin-bottom: 0.5rem;
}
.qt-service-link {
  color: var(--qt-primary);
  font-weight: 800;
  margin-top: auto;
}
.qt-flip-hint {
  position: absolute;
  right: 1.25rem;
  bottom: 1.25rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--qt-primary);
  color: var(--qt-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
}
.qt-stack {
  display: flex;
  justify-content: center;
  perspective: 1000px;
  margin-top: 2rem;
}
.qt-stack-card {
  flex: 0 0 320px;
  background: var(--qt-white);
  border-radius: 20px;
  padding: 2rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.08);
  transition: transform 0.5s var(--qt-ease), box-shadow 0.5s var(--qt-ease);
}
.qt-stack-card:nth-child(1) {
  transform: translateY(0);
  z-index: 10;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.08);
}
.qt-stack-card:nth-child(2) {
  transform: translateY(-10px);
  margin-left: -120px;
  z-index: 20;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.12);
}
.qt-stack-card:nth-child(3) {
  transform: translateY(-20px);
  margin-left: -120px;
  z-index: 30;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.16);
}
.qt-stack.is-expanded .qt-stack-card:nth-child(1) {
  transform: translateY(0) rotate(-3deg);
  margin-left: 0;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.12);
}
.qt-stack.is-expanded .qt-stack-card:nth-child(2) {
  transform: translateY(0) rotate(0deg);
  margin-left: 1.5rem;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.14);
}
.qt-stack.is-expanded .qt-stack-card:nth-child(3) {
  transform: translateY(0) rotate(3deg);
  margin-left: 1.5rem;
  box-shadow: 0 20px 44px rgba(0, 0, 0, 0.16);
}
.qt-stack-card-head {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.qt-stack-card-icon {
  font-size: 1.8rem;
  color: var(--qt-primary);
}
.qt-stack-card-title {
  font-size: 1.3rem;
  font-weight: 800;
}
.qt-stack-card-body {
  color: var(--qt-text-secondary);
  margin-top: 1rem;
}
.qt-stack-feature-list {
  margin: 1rem 0 0;
  padding-left: 1.25rem;
  color: var(--qt-text-secondary);
}
.qt-stack-feature-list li {
  margin-bottom: 0.5rem;
}
.qt-stack-detail {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--qt-border);
  color: var(--qt-text-secondary);
  transition: max-height 0.5s var(--qt-ease), opacity 0.5s var(--qt-ease);
}
.qt-stack.is-expanded .qt-stack-detail {
  max-height: 260px;
  opacity: 1;
}
.qt-stack-toggle {
  margin-top: 1rem;
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  border: 1px solid var(--qt-primary);
  color: var(--qt-primary);
  background: var(--qt-white);
  cursor: pointer;
  font-weight: 700;
  transition: background 0.3s var(--qt-ease), color 0.3s var(--qt-ease);
}
.qt-stack-toggle:hover {
  background: var(--qt-primary);
  color: var(--qt-white);
}
.qt-3d-section {
  position: relative;
  background: linear-gradient(180deg, #EAF7F6, var(--qt-bg));
  overflow: hidden;
}
.qt-3d-stage {
  position: relative;
  height: 520px;
  margin-top: 2rem;
  perspective: 1200px;
}
.qt-3d-carousel {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  animation: qt3dSpin 20s linear infinite;
}
.qt-3d-carousel.is-manual {
  animation: none;
  transform: rotateY(var(--qt-3d-rot, 0deg));
}
.qt-3d-card {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 220px;
  height: 280px;
  margin: -140px 0 0 -110px;
  border-radius: 16px;
  background: var(--qt-white);
  box-shadow: 0 18px 40px var(--qt-shadow);
  transform-style: preserve-3d;
  backface-visibility: hidden;
  overflow: hidden;
}
.qt-3d-card:nth-child(1) { transform: rotateY(0deg) translateZ(300px); }
.qt-3d-card:nth-child(2) { transform: rotateY(60deg) translateZ(300px); }
.qt-3d-card:nth-child(3) { transform: rotateY(120deg) translateZ(300px); }
.qt-3d-card:nth-child(4) { transform: rotateY(180deg) translateZ(300px); }
.qt-3d-card:nth-child(5) { transform: rotateY(240deg) translateZ(300px); }
.qt-3d-card:nth-child(6) { transform: rotateY(300deg) translateZ(300px); }
.qt-3d-card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  height: 60%;
  border-radius: 16px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0));
  transform: scaleY(-1);
  transform-origin: top;
  opacity: 0.4;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.7), transparent);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.7), transparent);
}
.qt-3d-card-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}
.qt-3d-card-body {
  padding: 1.25rem;
}
.qt-3d-card-title {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}
.qt-3d-card-text {
  font-size: 0.9rem;
  color: var(--qt-text-secondary);
  line-height: 1.6;
}
.qt-3d-hint,
.qt-3d-indicator {
  text-align: center;
  margin-top: 1rem;
}
.qt-3d-hint {
  color: var(--qt-text-secondary);
}
.qt-3d-indicator {
  font-weight: 800;
  color: var(--qt-primary);
}
.qt-logo-wall {
  display: grid;
  gap: 2rem;
  margin-top: 2rem;
}
.qt-logo-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 3rem;
}
.qt-logo-item {
  width: 180px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.6;
  filter: grayscale(100%);
  transition: opacity 0.3s var(--qt-ease), filter 0.3s var(--qt-ease), transform 0.3s var(--qt-ease);
}
.qt-logo-item:hover {
  opacity: 1;
  filter: grayscale(0);
  transform: scale(1.05);
}
.qt-logo-img {
  height: 48px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
}
.qt-palette-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}
.qt-palette-swatch {
  position: relative;
  min-height: 220px;
  border-radius: 16px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 0.35rem;
  color: var(--qt-white);
  cursor: pointer;
  transition: transform 0.3s var(--qt-ease), box-shadow 0.3s var(--qt-ease);
}
.qt-palette-swatch:hover {
  transform: scale(1.05);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.16);
}
.qt-palette-name {
  font-size: 1rem;
  font-weight: 800;
}
.qt-palette-hex {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9rem;
  opacity: 0.9;
}
.qt-palette-use {
  font-size: 0.85rem;
  opacity: 0.85;
}
.qt-swatch-primary {
  background: linear-gradient(135deg, var(--qt-primary), var(--qt-secondary));
}
.qt-swatch-secondary {
  background: linear-gradient(135deg, var(--qt-secondary), #065F5F);
}
.qt-swatch-accent {
  background: linear-gradient(135deg, var(--qt-accent), #FB923C);
}
.qt-swatch-text {
  background: var(--qt-text);
}
.qt-swatch-bg {
  background: var(--qt-white);
  color: var(--qt-text);
  border: 1px solid var(--qt-border);
}
.qt-palette-example {
  background: var(--qt-bg-dark);
}
.qt-palette-example .qt-palette-name {
  color: var(--qt-gradient-end);
}
.qt-process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}
.qt-process-step {
  background: var(--qt-white);
  border: 1px solid var(--qt-border);
  border-radius: 16px;
  padding: 1.5rem;
  min-height: 220px;
  transition: transform 0.3s var(--qt-ease), box-shadow 0.3s var(--qt-ease);
}
.qt-process-step:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px var(--qt-shadow);
}
.qt-process-index {
  display: block;
  font-size: 2.5rem;
  font-weight: 800;
  color: rgba(14, 165, 164, 0.15);
  line-height: 1;
}
.qt-process-title {
  margin: 0.75rem 0;
  font-size: 1.2rem;
  font-weight: 800;
}
.qt-process-text {
  color: var(--qt-text-secondary);
}
.qt-process-line {
  height: 4px;
  margin-top: 1rem;
  border-radius: 999px;
  background: var(--qt-border);
  overflow: hidden;
}
.qt-process-progress {
  display: block;
  height: 100%;
  width: calc(var(--section-progress, 0) * 100%);
  border-radius: 999px;
  background: linear-gradient(90deg, var(--qt-primary), var(--qt-accent));
}
.qt-news-grid,
.qt-news-list {
  display: grid;
  gap: 1.5rem;
  margin-top: 2rem;
}
.qt-news-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.qt-news-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.qt-news-card {
  background: var(--qt-white);
  border: 1px solid var(--qt-border);
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: transform 0.3s var(--qt-ease), box-shadow 0.3s var(--qt-ease), border-color 0.3s var(--qt-ease);
}
.qt-news-card:hover {
  transform: translateY(-4px);
  border-color: var(--qt-primary);
  box-shadow: 0 18px 36px var(--qt-shadow);
}
.qt-news-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}
.qt-news-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 0.75rem;
}
.qt-news-title {
  font-size: 1.15rem;
  line-height: 1.45;
  font-weight: 800;
}
.qt-news-title a {
  color: var(--qt-text);
  transition: color 0.3s var(--qt-ease);
}
.qt-news-title a:hover {
  color: var(--qt-primary);
}
.qt-news-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--qt-text-secondary);
}
.qt-news-desc {
  color: var(--qt-text-secondary);
  line-height: 1.7;
}
.qt-news-more {
  margin-top: auto;
  color: var(--qt-primary);
  font-weight: 800;
}
.qt-city-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 2rem;
}
.qt-city-card {
  min-height: 44px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--qt-white);
  border: 1px solid var(--qt-border);
  border-radius: 12px;
  color: var(--qt-text);
  transition: transform 0.3s var(--qt-ease), border-color 0.3s var(--qt-ease), box-shadow 0.3s var(--qt-ease);
}
.qt-city-card:hover {
  transform: translateY(-2px);
  border-color: var(--qt-primary);
  box-shadow: 0 12px 24px var(--qt-shadow);
}
.qt-city-name {
  font-weight: 800;
}
.qt-city-code {
  font-size: 0.75rem;
  color: var(--qt-text-secondary);
  text-transform: uppercase;
}
.qt-cta-section {
  background: linear-gradient(135deg, var(--qt-primary), var(--qt-secondary));
  color: var(--qt-white);
  text-align: center;
}
.qt-cta-glass {
  padding: 3rem;
  border-radius: 24px;
}
.qt-cta-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  line-height: 1.35;
}
.qt-cta-text {
  margin-top: 1rem;
  color: #E6F3F2;
}
.qt-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 1.75rem;
  border-radius: 999px;
  background: var(--qt-white);
  color: var(--qt-primary);
  font-weight: 800;
}
.qt-site-footer {
  background: var(--qt-bg-dark);
  color: #E6F3F2;
  padding: 8vh 0 3vh;
}
.qt-footer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2rem;
}
.qt-footer-brand {
  grid-column: span 2;
}
.qt-footer-logo {
  height: 48px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
  margin-bottom: 1rem;
}
.qt-footer-desc {
  color: #B6D8D5;
  margin-bottom: 1rem;
}
.qt-footer-contact-list {
  display: grid;
  gap: 0.75rem;
}
.qt-footer-contact-item {
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
  color: #D7EDEB;
}
.qt-footer-contact-item i {
  color: var(--qt-gradient-end);
  margin-top: 0.2rem;
}
.qt-footer-col {
  min-width: 0;
}
.qt-footer-title {
  color: var(--qt-white);
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 1rem;
}
.qt-footer-links {
  display: grid;
  gap: 0.5rem;
}
.qt-footer-link {
  color: #B6D8D5;
  transition: color 0.3s var(--qt-ease);
}
.qt-footer-link:hover {
  color: var(--qt-gradient-end);
}
.qt-footer-sitemap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.qt-footer-friend {
  grid-column: 1 / -1;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}
.qt-footer-friend-link {
  display: inline-block;
  margin: 0.35rem 0.5rem;
  color: #9BC6C2;
  transition: color 0.3s var(--qt-ease);
}
.qt-footer-friend-link:hover {
  color: var(--qt-gradient-end);
}
.qt-footer-weixin {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.qt-footer-weixin-img {
  width: 120px;
  height: 120px;
  border-radius: 12px;
  background: var(--qt-white);
  padding: 6px;
  object-fit: contain;
}
.qt-footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}
.qt-footer-copyright,
.qt-footer-icp {
  color: #9BC6C2;
  font-size: 0.9rem;
}
.qt-page-hero {
  position: relative;
  color: var(--qt-white);
  overflow: hidden;
}
.qt-page-hero-bg {
  position: absolute;
  inset: 0;
}
.qt-page-hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.qt-page-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11, 46, 50, 0.86), rgba(14, 165, 164, 0.55));
}
.qt-page-hero-content {
  position: relative;
  z-index: 2;
}
.qt-page-title {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin: 0.75rem 0;
}
.qt-page-subtitle {
  max-width: 760px;
  color: #D7EDEB;
  font-size: 1.05rem;
  line-height: 1.8;
}
.qt-page-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  font-size: 0.9rem;
  color: #B6D8D5;
}
.qt-page-breadcrumb a {
  color: var(--qt-white);
}
.qt-page-breadcrumb span {
  opacity: 0.85;
}
.qt-about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}
.qt-about-text h2 {
  margin: 0.75rem 0 1rem;
}
.qt-about-text p {
  color: var(--qt-text-secondary);
  margin-bottom: 1rem;
}
.qt-about-image-stack {
  position: relative;
}
.qt-about-image {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: 20px;
  box-shadow: 0 22px 44px var(--qt-shadow);
}
.qt-about-image-offset {
  position: absolute;
  right: 0;
  bottom: -2rem;
  width: 70%;
  height: 220px;
}
.qt-about-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.5rem;
}
.qt-about-stat {
  padding: 1.5rem;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--qt-border);
  text-align: center;
}
.qt-about-stat-value {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--qt-primary);
}
.qt-about-stat-label {
  color: var(--qt-text-secondary);
}
.qt-about-values {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.5rem;
}
.qt-value-card {
  background: var(--qt-white);
  border: 1px solid var(--qt-border);
  border-radius: 16px;
  padding: 1.5rem;
  transition: transform 0.3s var(--qt-ease), box-shadow 0.3s var(--qt-ease);
}
.qt-value-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 36px var(--qt-shadow);
}
.qt-value-icon {
  display: block;
  font-size: 1.8rem;
  color: var(--qt-primary);
  margin-bottom: 0.75rem;
}
.qt-value-title {
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}
.qt-value-text {
  color: var(--qt-text-secondary);
}
.qt-news-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
}
.qt-news-main,
.qt-news-sidebar {
  min-width: 0;
}
.qt-news-filter {
  margin-bottom: 2rem;
}
.qt-filter-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.qt-filter-item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--qt-border);
  border-radius: 999px;
  color: var(--qt-text-secondary);
  background: var(--qt-white);
}
.qt-filter-item.active {
  background: var(--qt-primary);
  color: var(--qt-white);
  border-color: var(--qt-primary);
}
.qt-filter-item a {
  color: inherit;
}
.qt-sidebar {
  display: grid;
  gap: 1.5rem;
}
.qt-sidebar-card {
  background: var(--qt-white);
  border: 1px solid var(--qt-border);
  border-radius: 16px;
  padding: 1.5rem;
}
.qt-sidebar-card.qt-glass {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(14, 165, 164, 0.16);
}
.qt-sidebar-title {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 1rem;
}
.qt-sidebar-list {
  display: grid;
  gap: 0.75rem;
}
.qt-sidebar-item {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  color: var(--qt-text);
  padding: 0.5rem;
  border-radius: 12px;
  transition: background 0.3s var(--qt-ease), transform 0.3s var(--qt-ease);
}
.qt-sidebar-item:hover {
  background: var(--qt-bg-alt);
  transform: translateX(4px);
}
.qt-sidebar-thumb {
  width: 72px;
  height: 54px;
  object-fit: cover;
  border-radius: 8px;
}
.qt-sidebar-text {
  font-size: 0.95rem;
  line-height: 1.5;
}
.qt-pagination-wrap {
  margin-top: 2.5rem;
}
.qt-pagination-wrap .pagination {
  gap: 0.5rem;
  justify-content: center;
}
.qt-pagination-wrap .page-link {
  border-radius: 10px;
  border-color: var(--qt-border);
  color: var(--qt-primary);
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.qt-pagination-wrap .page-item.active .page-link {
  background: var(--qt-primary);
  color: var(--qt-white);
  border-color: var(--qt-primary);
}
.qt-empty {
  padding: 3rem;
  text-align: center;
  background: var(--qt-white);
  border: 1px dashed var(--qt-border);
  border-radius: 16px;
  color: var(--qt-text-secondary);
}
.qt-article-card {
  padding: 2rem;
}
.qt-article-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.25;
}
.qt-article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  color: var(--qt-text-secondary);
  margin: 1rem 0 2rem;
}
.qt-article-content {
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--qt-text);
}
.qt-article-content p {
  margin: 0 0 1.25rem;
}
.qt-article-content h2,
.qt-article-content h3 {
  margin: 2rem 0 1rem;
  font-weight: 800;
}
.qt-article-content ul,
.qt-article-content ol {
  margin: 0 0 1.25rem;
  padding-left: 1.5rem;
}
.qt-article-content li {
  margin-bottom: 0.5rem;
}
.qt-article-content img {
  border-radius: 16px;
  margin: 1.5rem auto;
}
.qt-article-content a {
  color: var(--qt-primary);
}
.qt-article-content blockquote {
  border-left: 4px solid var(--qt-primary);
  padding-left: 1rem;
  color: var(--qt-text-secondary);
  margin: 1.5rem 0;
}
.qt-article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 2rem;
}
.qt-tag {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  background: rgba(14, 165, 164, 0.12);
  color: var(--qt-secondary);
  font-size: 0.85rem;
  font-weight: 700;
}
.qt-article-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--qt-border);
}
.qt-back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--qt-primary);
  font-weight: 800;
}
.qt-back-link:hover {
  color: var(--qt-secondary);
}
.qt-related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}
.qt-related-card {
  display: flex;
  gap: 1rem;
  align-items: center;
  background: var(--qt-white);
  border: 1px solid var(--qt-border);
  border-radius: 16px;
  padding: 1rem;
  color: var(--qt-text);
  transition: transform 0.3s var(--qt-ease), border-color 0.3s var(--qt-ease), box-shadow 0.3s var(--qt-ease);
}
.qt-related-card:hover {
  transform: translateY(-4px);
  border-color: var(--qt-primary);
  box-shadow: 0 16px 32px var(--qt-shadow);
}
.qt-related-img {
  width: 80px;
  height: 60px;
  object-fit: cover;
  border-radius: 10px;
}
.qt-related-title {
  font-size: 0.95rem;
  line-height: 1.5;
  font-weight: 700;
}
.qt-detail-cta {
  margin-top: 2rem;
}
.qt-contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}
.qt-contact-form-card {
  grid-column: 1 / -1;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--qt-border);
  border-radius: 20px;
  padding: 2rem;
}
.qt-contact-info-card {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--qt-border);
  border-radius: 20px;
  padding: 1.5rem;
}
.qt-contact-form {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}
.qt-form-group {
  display: grid;
  gap: 0.5rem;
}
.qt-form-label {
  font-weight: 800;
}
.qt-form-control {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--qt-border);
  border-radius: 12px;
  background: var(--qt-white);
  color: var(--qt-text);
  transition: border-color 0.3s var(--qt-ease), box-shadow 0.3s var(--qt-ease);
}
.qt-form-control:focus {
  outline: none;
  border-color: var(--qt-primary);
  box-shadow: 0 0 0 4px rgba(14, 165, 164, 0.12);
}
.qt-form-textarea {
  min-height: 140px;
  resize: vertical;
}
.qt-form-help {
  font-size: 0.85rem;
  color: var(--qt-text-secondary);
}
.qt-submit-btn {
  width: 100%;
  padding: 1rem;
  border: none;
  border-radius: 12px;
  background: linear-gradient(90deg, var(--qt-primary), var(--qt-accent));
  color: var(--qt-white);
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.3s var(--qt-ease), box-shadow 0.3s var(--qt-ease);
}
.qt-submit-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 32px rgba(14, 165, 164, 0.25);
}
.qt-contact-side {
  display: grid;
  gap: 1rem;
}
.qt-info-list {
  display: grid;
  gap: 0.75rem;
}
.qt-info-item {
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
}
.qt-info-item i {
  color: var(--qt-primary);
  margin-top: 0.2rem;
}
.qt-info-label {
  display: block;
  font-size: 0.85rem;
  color: var(--qt-text-secondary);
}
.qt-info-value {
  display: block;
  font-weight: 700;
  color: var(--qt-text);
}
.qt-weixin-card {
  grid-column: 1 / -1;
  display: flex;
  gap: 1rem;
  align-items: center;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--qt-border);
  border-radius: 20px;
  padding: 1.5rem;
}
.qt-weixin-img {
  width: 140px;
  height: 140px;
  object-fit: contain;
  background: var(--qt-white);
  border-radius: 12px;
  padding: 6px;
  border: 1px solid var(--qt-border);
}
.qt-map-card {
  grid-column: 1 / -1;
  background: var(--qt-white);
  border: 1px solid var(--qt-border);
  border-radius: 20px;
  overflow: hidden;
}
.qt-map-img {
  width: 100%;
  height: 360px;
  object-fit: cover;
}
.qt-glass {
  background: var(--qt-glass-bg);
  border: 1px solid var(--qt-glass-border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}
@supports not ((backdrop-filter: blur(20px)) or (-webkit-backdrop-filter: blur(20px))) {
  .qt-glass {
    background: rgba(255, 255, 255, 0.92);
  }
}
@keyframes qt3dSpin {
  from {
    transform: rotateY(0deg);
  }
  to {
    transform: rotateY(360deg);
  }
}
@keyframes qtToastIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--qt-ease), transform 0.6s var(--qt-ease);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media max-width 1199px {
  .qt-service-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .qt-process-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .qt-about-values {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .qt-news-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .qt-city-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
@media max-width 991px {
  .qt-brand-logo {
    font-size: 1.5rem;
  }
  .qt-brand-logo-img {
    height: 38px;
  }
  .qt-nav-collapse {
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid var(--qt-border);
    border-radius: 16px;
    padding: 1rem;
    margin-top: 0.75rem;
    width: 100%;
  }
  .qt-nav-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
  }
  .qt-nav-links .nav-item {
    width: 100%;
  }
  .qt-nav-links .nav-link {
    padding: 0.85rem 0.5rem;
    min-height: 44px;
  }
  .qt-nav-cta {
    margin-left: 0;
    width: 100%;
  }
  .qt-nav-cta-btn {
    width: 100%;
  }
  .qt-hero-stats {
    margin-top: 2rem;
  }
  .qt-stack {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }
  .qt-stack-card,
  .qt-stack-card:nth-child(2),
  .qt-stack-card:nth-child(3),
  .qt-stack.is-expanded .qt-stack-card:nth-child(1),
  .qt-stack.is-expanded .qt-stack-card:nth-child(2),
  .qt-stack.is-expanded .qt-stack-card:nth-child(3) {
    transform: none;
    margin-left: 0;
    z-index: auto;
  }
  .qt-news-layout {
    grid-template-columns: 1fr;
  }
  .qt-footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .qt-footer-brand {
    grid-column: 1 / -1;
  }
  .qt-about-grid {
    grid-template-columns: 1fr;
  }
  .qt-contact-grid {
    grid-template-columns: 1fr;
  }
  .qt-contact-form-card,
  .qt-contact-info-card,
  .qt-weixin-card,
  .qt-map-card {
    grid-column: auto;
  }
}
@media max-width 767px {
  .qt-site-main > section:nth-of-type(odd) {
    padding: 10vh 0;
  }
  .qt-site-main > section:nth-of-type(even) {
    padding: 4vh 0;
  }
  .qt-hero-glass,
  .qt-cta-glass,
  .qt-article-card {
    padding: 1.5rem;
  }
  .qt-service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
  }
  .qt-service-face {
    padding: 1.25rem;
  }
  .qt-flip-card {
    min-height: 300px;
  }
  .qt-palette-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .qt-logo-row {
    gap: 1rem;
  }
  .qt-logo-item {
    width: 30%;
  }
  .qt-city-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .qt-news-grid,
  .qt-news-list,
  .qt-related-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .qt-about-stats,
  .qt-about-values,
  .qt-process-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .qt-weixin-card {
    flex-direction: column;
    align-items: flex-start;
  }
}
@media max-width 575px {
  .qt-hero-title {
    font-size: 2rem;
  }
  .qt-section-title {
    font-size: 1.6rem;
  }
  .qt-page-title {
    font-size: 1.8rem;
  }
  .qt-flip-card {
    min-height: 320px;
  }
  .qt-service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .qt-logo-item {
    width: 31%;
  }
}
@supports not (transform-style: preserve-3d) {
  .qt-3d-stage {
    height: auto;
    overflow-x: auto;
    overflow-y: hidden;
  }
  .qt-3d-carousel {
    position: static;
    width: auto;
    height: auto;
    display: flex;
    gap: 1rem;
    animation: none;
    transform: none;
  }
  .qt-3d-card,
  .qt-3d-card:nth-child(1),
  .qt-3d-card:nth-child(2),
  .qt-3d-card:nth-child(3),
  .qt-3d-card:nth-child(4),
  .qt-3d-card:nth-child(5),
  .qt-3d-card:nth-child(6) {
    position: static;
    width: 240px;
    height: auto;
    margin: 0;
    transform: none;
    flex: 0 0 240px;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] {
    opacity: 1;
    transform: none;
  }
  .qt-3d-carousel {
    animation: none;
    transform: rotateY(0deg);
  }
}