:root {
--qt-primary: #0D9488;
--qt-secondary: #5EEAD4;
--qt-accent: #D97706;
--qt-text: #1F2937;
--qt-text-secondary: #6B7280;
--qt-bg: #FFFFFF;
--qt-bg-dark: #0F0F0F;
--qt-border: #E5E7EB;
--qt-shadow: rgba(163, 177, 198, 0.6);
--qt-shadow-light: rgba(255, 255, 255, 0.5);
--qt-gradient-start: #0D9488;
--qt-gradient-end: #5EEAD4;
--qt-neu-bg: #e0e5ec;
--qt-neu-shadow-dark: rgba(163, 177, 198, 0.6);
--qt-neu-shadow-light: rgba(255, 255, 255, 0.5);
--qt-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
--qt-radius: 16px;
--qt-radius-lg: 20px;
}

* {
margin: 0;
padding: 0;
box-sizing: border-box;
}

body {
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
color: var(--qt-text);
background: var(--qt-bg);
line-height: 1.7;
font-weight: 400;
overflow-x: hidden;
}

h1 {
font-size: clamp(2.5rem, 8vw, 6rem);
line-height: 1.05;
font-weight: 800;
letter-spacing: -0.03em;
}

h2 {
font-size: clamp(2rem, 5vw, 3.5rem);
line-height: 1.1;
font-weight: 700;
}

h3 {
font-size: clamp(1.5rem, 3vw, 2rem);
line-height: 1.2;
font-weight: 600;
}

h4 {
font-size: clamp(1.125rem, 2vw, 1.5rem);
line-height: 1.3;
font-weight: 600;
}

h5 {
font-size: 1rem;
line-height: 1.4;
font-weight: 600;
}

p {
font-size: 1rem;
line-height: 1.7;
color: var(--qt-text-secondary);
}

a {
text-decoration: none;
color: inherit;
transition: all 0.3s var(--qt-spring);
}

img {
max-width: 100%;
height: auto;
display: block;
}

.container {
max-width: 1200px;
margin: 0 auto;
padding: 0 20px;
}

.qt-header {
position: fixed;
top: 0;
left: 0;
width: 100%;
z-index: 1000;
background: rgba(255, 255, 255, 0.95);
backdrop-filter: blur(20px);
transition: all 0.4s var(--qt-spring);
border-bottom: 1px solid transparent;
}

.qt-header-scrolled {
background: rgba(255, 255, 255, 0.98);
border-bottom: 1px solid var(--qt-border);
box-shadow: 0 4px 30px rgba(0, 0, 0, 0.06);
}

.qt-header-inner {
display: flex;
align-items: center;
justify-content: center;
height: 80px;
max-width: 1200px;
margin: 0 auto;
padding: 0 20px;
position: relative;
}

.qt-logo-center {
position: absolute;
left: 50%;
transform: translateX(-50%);
z-index: 10;
}

.qt-logo-img {
height: 48px;
width: auto;
transition: transform 0.3s var(--qt-spring);
}

.qt-logo-img:hover {
transform: scale(1.05);
}

.qt-nav-left,
.qt-nav-right {
flex: 1;
display: flex;
justify-content: space-around;
align-items: center;
}

.qt-nav-left {
padding-right: 80px;
}

.qt-nav-right {
padding-left: 80px;
}

.qt-nav-link {
font-size: 0.875rem;
text-transform: uppercase;
letter-spacing: 0.1em;
color: var(--qt-text);
position: relative;
padding: 8px 0;
font-weight: 500;
}

.qt-nav-link::after {
content: '';
position: absolute;
bottom: 0;
left: 50%;
transform: translateX(-50%);
width: 0;
height: 2px;
background: var(--qt-primary);
transition: width 0.3s var(--qt-spring);
}

.qt-nav-link:hover::after,
.qt-nav-active::after {
width: 100%;
}

.qt-nav-link:hover {
color: var(--qt-primary);
}

.qt-nav-active {
color: var(--qt-primary);
font-weight: 700;
}

.qt-mobile-toggle {
display: none;
flex-direction: column;
gap: 5px;
background: none;
border: none;
cursor: pointer;
padding: 10px;
position: absolute;
right: 20px;
z-index: 20;
}

.qt-bar {
width: 24px;
height: 2px;
background: var(--qt-text);
transition: all 0.3s var(--qt-spring);
border-radius: 2px;
}

.qt-toggle-active .qt-bar:nth-child(1) {
transform: rotate(45deg) translate(5px, 5px);
}

.qt-toggle-active .qt-bar:nth-child(2) {
opacity: 0;
}

.qt-toggle-active .qt-bar:nth-child(3) {
transform: rotate(-45deg) translate(5px, -5px);
}

.qt-mobile-menu {
display: none;
position: fixed;
top: 80px;
left: 0;
width: 100%;
height: calc(100vh - 80px);
background: var(--qt-bg);
flex-direction: column;
align-items: center;
justify-content: center;
gap: 24px;
z-index: 999;
opacity: 0;
transform: translateY(-20px);
transition: all 0.4s var(--qt-spring);
}

.qt-mobile-menu-open {
display: flex;
opacity: 1;
transform: translateY(0);
}

.qt-mobile-link {
font-size: 1.25rem;
font-weight: 600;
color: var(--qt-text);
padding: 12px 24px;
}

.qt-mobile-link:hover {
color: var(--qt-primary);
}

.qt-section {
padding: 60px 0;
position: relative;
overflow: hidden;
}

.qt-section-light {
background: var(--qt-bg);
color: var(--qt-text);
}

.qt-section-dark {
background: var(--qt-bg-dark);
color: #ffffff;
}

.qt-section-dark p {
color: rgba(255, 255, 255, 0.7);
}

.qt-section-dark h2,
.qt-section-dark h3,
.qt-section-dark h4 {
color: #ffffff;
font-weight: 800;
}

.qt-section-header {
text-align: center;
margin-bottom: 48px;
}

.qt-section-tag {
display: inline-block;
font-size: 0.75rem;
text-transform: uppercase;
letter-spacing: 0.15em;
color: var(--qt-primary);
background: rgba(13, 148, 136, 0.1);
padding: 6px 16px;
border-radius: 20px;
margin-bottom: 16px;
font-weight: 600;
}

.qt-dark-header .qt-section-tag {
background: rgba(94, 234, 212, 0.15);
color: var(--qt-secondary);
}

.qt-section-title {
margin-bottom: 16px;
}

.qt-section-desc {
max-width: 600px;
margin: 0 auto;
font-size: 1.05rem;
}

.qt-section-desc-dark {
max-width: 600px;
margin: 0 auto;
font-size: 1.05rem;
color: rgba(255, 255, 255, 0.6);
}

.qt-text-accent {
color: var(--qt-accent);
}

.qt-btn {
display: inline-flex;
align-items: center;
gap: 8px;
padding: 14px 28px;
border-radius: var(--qt-radius);
font-size: 0.95rem;
font-weight: 600;
cursor: pointer;
border: 2px solid transparent;
transition: all 0.4s var(--qt-spring);
text-decoration: none;
}

.qt-btn-primary {
background: var(--qt-primary);
color: #ffffff;
border-color: var(--qt-primary);
box-shadow: 6px 6px 12px var(--qt-neu-shadow-dark), -6px -6px 12px var(--qt-neu-shadow-light);
}

.qt-btn-primary:hover {
background: #0b8278;
transform: translateY(-2px);
box-shadow: 8px 8px 16px var(--qt-neu-shadow-dark), -8px -8px 16px var(--qt-neu-shadow-light);
}

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

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

.qt-btn-lg {
padding: 18px 36px;
font-size: 1.05rem;
}

.qt-btn-sm {
padding: 10px 20px;
font-size: 0.85rem;
}

.qt-btn-full {
width: 100%;
justify-content: center;
}

.qt-neu-card {
background: var(--qt-neu-bg);
border-radius: var(--qt-radius-lg);
box-shadow: 9px 9px 16px var(--qt-neu-shadow-dark), -9px -9px 16px var(--qt-neu-shadow-light);
transition: all 0.4s var(--qt-spring);
}

.qt-neu-card:active {
box-shadow: inset 6px 6px 12px var(--qt-neu-shadow-dark), inset -6px -6px 12px var(--qt-neu-shadow-light);
}

.qt-neu-card-light {
background: #f0f4f8;
border-radius: var(--qt-radius-lg);
box-shadow: 9px 9px 16px rgba(163, 177, 198, 0.45), -9px -9px 16px rgba(255, 255, 255, 0.8);
transition: all 0.4s var(--qt-spring);
}

.qt-neu-card-light:hover {
transform: translateY(-4px);
box-shadow: 12px 12px 20px rgba(163, 177, 198, 0.5), -12px -12px 20px rgba(255, 255, 255, 0.9);
}

.qt-neu-card-dark {
background: #1a1a2e;
border-radius: var(--qt-radius-lg);
box-shadow: 9px 9px 16px rgba(0, 0, 0, 0.5), -9px -9px 16px rgba(50, 50, 80, 0.2);
transition: all 0.4s var(--qt-spring);
color: #ffffff;
}

.qt-neu-card-dark:hover {
transform: translateY(-4px);
}

.qt-hero-section {
padding: 0;
min-height: 100vh;
position: relative;
}

.qt-hero-slider {
position: relative;
width: 100%;
height: 100vh;
overflow: hidden;
}

.qt-slide-item {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
opacity: 0;
transition: opacity 1s ease;
}

.qt-slide-active {
opacity: 1;
}

.qt-slide-item img {
width: 100%;
height: 100%;
object-fit: cover;
filter: brightness(0.85) contrast(1.1);
}

.qt-hero-overlay {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: linear-gradient(135deg, rgba(15, 15, 15, 0.7) 0%, rgba(13, 148, 136, 0.3) 100%);
display: flex;
align-items: center;
z-index: 5;
}

.qt-hero-content {
max-width: 700px;
}

.qt-hero-title {
color: #ffffff;
margin-bottom: 20px;
text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.qt-hero-subtitle {
color: rgba(255, 255, 255, 0.85);
font-size: clamp(1rem, 2vw, 1.25rem);
margin-bottom: 32px;
line-height: 1.6;
}

.qt-hero-actions {
display: flex;
gap: 16px;
flex-wrap: wrap;
}

.qt-hero-actions .qt-btn-outline {
color: #ffffff;
border-color: rgba(255, 255, 255, 0.5);
}

.qt-hero-actions .qt-btn-outline:hover {
background: rgba(255, 255, 255, 0.15);
border-color: #ffffff;
}

.qt-slider-dots {
position: absolute;
bottom: 40px;
left: 50%;
transform: translateX(-50%);
display: flex;
gap: 12px;
z-index: 10;
}

.qt-dot {
width: 12px;
height: 12px;
border-radius: 50%;
background: rgba(255, 255, 255, 0.4);
cursor: pointer;
transition: all 0.3s var(--qt-spring);
}

.qt-dot-active {
background: var(--qt-primary);
transform: scale(1.3);
}

.qt-dynamic-text-wrapper {
text-align: center;
margin-bottom: 48px;
}

.qt-dynamic-display {
min-height: 120px;
display: flex;
align-items: center;
justify-content: center;
}

.qt-dynamic-text {
font-size: clamp(3rem, 8vw, 6rem);
font-weight: 800;
color: var(--qt-secondary);
letter-spacing: -0.02em;
}

.qt-dynamic-cursor {
font-size: clamp(3rem, 8vw, 6rem);
color: var(--qt-accent);
animation: qtBlink 1s step-end infinite;
}

@keyframes qtBlink {
0%, 100% { opacity: 1; }
50% { opacity: 0; }
}

.qt-dynamic-words {
display: flex;
gap: 16px;
justify-content: center;
flex-wrap: wrap;
margin-top: 24px;
}

.qt-dynamic-word {
font-size: 0.875rem;
padding: 6px 16px;
border-radius: 20px;
background: rgba(255, 255, 255, 0.08);
color: rgba(255, 255, 255, 0.5);
transition: all 0.3s var(--qt-spring);
}

.qt-dynamic-word-active {
background: var(--qt-primary);
color: #ffffff;
}

.qt-advantage-grid {
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 24px;
}

.qt-advantage-card {
padding: 32px 24px;
text-align: center;
opacity: 0;
transform: translateY(30px);
transition: all 0.6s var(--qt-spring);
transition-delay: calc(var(--i) * 0.15s);
}

.qt-advantage-card.qt-stagger-visible,
.qt-section-visible .qt-advantage-card {
opacity: 1;
transform: translateY(0);
}

.qt-advantage-icon {
width: 64px;
height: 64px;
border-radius: 50%;
background: var(--qt-primary);
display: flex;
align-items: center;
justify-content: center;
margin: 0 auto 20px;
font-size: 1.5rem;
color: #ffffff;
}

.qt-advantage-card h3 {
font-size: 1.15rem;
margin-bottom: 12px;
color: var(--qt-text);
}

.qt-advantage-card p {
font-size: 0.9rem;
line-height: 1.6;
}

.qt-services-grid {
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 24px;
}

.qt-service-card {
padding: 36px 28px;
opacity: 0;
transform: translateY(30px);
transition: all 0.6s var(--qt-spring);
transition-delay: calc(var(--i) * 0.15s);
}

.qt-section-visible .qt-service-card {
opacity: 1;
transform: translateY(0);
}

.qt-service-num {
font-size: 3rem;
font-weight: 800;
color: rgba(13, 148, 136, 0.15);
line-height: 1;
margin-bottom: 16px;
}

.qt-service-card h3 {
font-size: 1.25rem;
margin-bottom: 12px;
color: var(--qt-text);
}

.qt-service-card p {
font-size: 0.9rem;
margin-bottom: 16px;
}

.qt-service-list {
list-style: none;
padding: 0;
}

.qt-service-list li {
font-size: 0.85rem;
padding: 6px 0;
color: var(--qt-text-secondary);
border-bottom: 1px solid var(--qt-border);
}

.qt-service-list li:last-child {
border-bottom: none;
}

.qt-service-list li::before {
content: '✓ ';
color: var(--qt-primary);
font-weight: 700;
}

.qt-color-grid {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 24px;
margin-bottom: 40px;
}

.qt-color-card {
border-radius: var(--qt-radius-lg);
overflow: hidden;
cursor: pointer;
position: relative;
opacity: 0;
transform: translateY(30px);
transition: all 0.6s var(--qt-spring);
transition-delay: calc(var(--i) * 0.15s);
}

.qt-section-visible .qt-color-card {
opacity: 1;
transform: translateY(0);
}

.qt-color-swatch {
height: 140px;
width: 100%;
transition: transform 0.4s var(--qt-spring);
}

.qt-color-card:hover .qt-color-swatch {
transform: scale(1.05);
}

.qt-color-info {
padding: 20px;
background: #1a1a2e;
}

.qt-color-info h4 {
font-size: 1rem;
margin-bottom: 4px;
color: #ffffff;
}

.qt-color-hex {
font-family: monospace;
font-size: 0.85rem;
color: var(--qt-secondary);
}

.qt-color-info p {
font-size: 0.8rem;
color: rgba(255, 255, 255, 0.5);
margin-top: 4px;
}

.qt-color-copy {
position: absolute;
top: 12px;
right: 12px;
width: 36px;
height: 36px;
border-radius: 50%;
background: rgba(255, 255, 255, 0.2);
display: flex;
align-items: center;
justify-content: center;
color: #ffffff;
opacity: 0;
transition: all 0.3s var(--qt-spring);
}

.qt-color-card:hover .qt-color-copy {
opacity: 1;
}

.qt-color-gradient-demo {
text-align: center;
}

.qt-color-gradient-demo h4 {
color: #ffffff;
margin-bottom: 16px;
}

.qt-gradient-bar {
height: 60px;
border-radius: var(--qt-radius);
background: linear-gradient(90deg, var(--qt-primary), var(--qt-secondary), var(--qt-accent));
}

.qt-stats-grid {
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 24px;
}

.qt-stat-item {
text-align: center;
padding: 40px 20px;
opacity: 0;
transform: translateY(30px);
transition: all 0.6s var(--qt-spring);
transition-delay: calc(var(--i) * 0.15s);
}

.qt-section-visible .qt-stat-item {
opacity: 1;
transform: translateY(0);
}

.qt-stat-number {
font-size: clamp(2.5rem, 5vw, 4rem);
font-weight: 800;
color: var(--qt-primary);
display: inline;
}

.qt-stat-unit {
font-size: clamp(1.5rem, 3vw, 2rem);
font-weight: 700;
color: var(--qt-accent);
display: inline;
}

.qt-stat-label {
margin-top: 8px;
font-size: 0.95rem;
color: var(--qt-text-secondary);
}

.qt-team-grid {
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 24px;
}

.qt-team-card {
text-align: center;
padding: 36px 24px;
background: #1a1a2e;
border-radius: var(--qt-radius-lg);
box-shadow: 9px 9px 16px rgba(0, 0, 0, 0.5), -9px -9px 16px rgba(50, 50, 80, 0.2);
opacity: 0;
transform: translateY(30px);
transition: all 0.6s var(--qt-spring);
transition-delay: calc(var(--i) * 0.15s);
}

.qt-section-visible .qt-team-card {
opacity: 1;
transform: translateY(0);
}

.qt-team-card:hover {
transform: translateY(-6px);
}

.qt-team-avatar {
width: 120px;
height: 120px;
border-radius: 50%;
overflow: hidden;
margin: 0 auto 20px;
border: 3px solid var(--qt-primary);
}

.qt-team-avatar img {
width: 100%;
height: 100%;
object-fit: cover;
}

.qt-team-card h4 {
color: #ffffff;
margin-bottom: 4px;
}

.qt-team-role {
font-size: 0.85rem;
color: var(--qt-secondary);
display: block;
margin-bottom: 12px;
}

.qt-team-card p {
font-size: 0.85rem;
color: rgba(255, 255, 255, 0.6);
margin-bottom: 16px;
}

.qt-team-social {
display: flex;
gap: 12px;
justify-content: center;
}

.qt-team-social a {
width: 36px;
height: 36px;
border-radius: 50%;
background: rgba(13, 148, 136, 0.2);
display: flex;
align-items: center;
justify-content: center;
color: var(--qt-secondary);
transition: all 0.3s var(--qt-spring);
}

.qt-team-social a:hover {
background: var(--qt-primary);
color: #ffffff;
}

.qt-city-grid {
display: grid;
grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
gap: 12px;
}

.qt-city-card {
display: flex;
align-items: center;
gap: 6px;
padding: 12px 16px;
background: #f0f4f8;
border-radius: 12px;
font-size: 0.9rem;
font-weight: 500;
color: var(--qt-text);
box-shadow: 4px 4px 8px rgba(163, 177, 198, 0.35), -4px -4px 8px rgba(255, 255, 255, 0.7);
transition: all 0.3s var(--qt-spring);
opacity: 0;
transform: translateY(20px);
transition: all 0.5s var(--qt-spring);
transition-delay: calc(var(--i) * 0.05s);
}

.qt-section-visible .qt-city-card {
opacity: 1;
transform: translateY(0);
}

.qt-city-card:hover {
transform: translateY(-3px);
color: var(--qt-primary);
box-shadow: 6px 6px 12px rgba(163, 177, 198, 0.45), -6px -6px 12px rgba(255, 255, 255, 0.8);
}

.qt-city-card i {
color: var(--qt-primary);
font-size: 0.8rem;
}

.qt-city-card h5 {
margin: 0;
font-size: 0.9rem;
}

.qt-news-grid {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 24px;
}

.qt-news-card {
background: #1a1a2e;
border-radius: var(--qt-radius-lg);
overflow: hidden;
box-shadow: 9px 9px 16px rgba(0, 0, 0, 0.5), -9px -9px 16px rgba(50, 50, 80, 0.2);
opacity: 0;
transform: translateY(30px);
transition: all 0.6s var(--qt-spring);
transition-delay: calc(var(--i) * 0.15s);
}

.qt-section-visible .qt-news-card {
opacity: 1;
transform: translateY(0);
}

.qt-news-card:hover {
transform: translateY(-6px);
}

.qt-news-img {
height: 200px;
overflow: hidden;
}

.qt-news-img img {
width: 100%;
height: 100%;
object-fit: cover;
transition: transform 0.5s var(--qt-spring);
filter: brightness(0.85) contrast(1.1);
}

.qt-news-card:hover .qt-news-img img {
transform: scale(1.05);
}

.qt-news-body {
padding: 24px;
}

.qt-news-body time {
font-size: 0.8rem;
color: rgba(255, 255, 255, 0.5);
display: block;
margin-bottom: 8px;
}

.qt-news-body h3 {
font-size: 1.1rem;
color: #ffffff;
margin-bottom: 8px;
line-height: 1.4;
}

.qt-news-body p {
font-size: 0.85rem;
color: rgba(255, 255, 255, 0.6);
margin-bottom: 16px;
display: -webkit-box;
-webkit-line-clamp: 2;
-webkit-box-orient: vertical;
overflow: hidden;
}

.qt-news-link {
font-size: 0.85rem;
color: var(--qt-secondary);
font-weight: 600;
}

.qt-news-link:hover {
color: var(--qt-accent);
}

.qt-contact-grid {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 40px;
align-items: start;
}

.qt-contact-form-wrap {
padding: 40px;
}

.qt-form-group {
margin-bottom: 20px;
}

.qt-form-group label {
display: block;
font-size: 0.9rem;
font-weight: 600;
color: var(--qt-text);
margin-bottom: 8px;
}

.qt-form-group input,
.qt-form-group textarea {
width: 100%;
padding: 14px 18px;
border: 2px solid var(--qt-border);
border-radius: 12px;
font-size: 0.95rem;
background: #e8ecf1;
box-shadow: inset 4px 4px 8px rgba(163, 177, 198, 0.4), inset -4px -4px 8px rgba(255, 255, 255, 0.6);
transition: all 0.3s var(--qt-spring);
outline: none;
font-family: inherit;
}

.qt-form-group input:focus,
.qt-form-group textarea:focus {
border-color: var(--qt-primary);
box-shadow: inset 4px 4px 8px rgba(163, 177, 198, 0.4), inset -4px -4px 8px rgba(255, 255, 255, 0.6), 0 0 0 3px rgba(13, 148, 136, 0.15);
}

.qt-form-success {
display: none;
text-align: center;
padding: 40px;
}

.qt-form-success i {
font-size: 3rem;
color: var(--qt-primary);
margin-bottom: 16px;
display: block;
}

.qt-form-success h3 {
margin-bottom: 8px;
}

.qt-contact-info {
display: grid;
gap: 16px;
}

.qt-info-card {
display: flex;
align-items: center;
gap: 16px;
padding: 24px;
}

.qt-info-card i {
font-size: 1.5rem;
color: var(--qt-primary);
width: 48px;
height: 48px;
display: flex;
align-items: center;
justify-content: center;
background: rgba(13, 148, 136, 0.1);
border-radius: 12px;
flex-shrink: 0;
}

.qt-info-card h4 {
font-size: 0.9rem;
margin-bottom: 4px;
}

.qt-info-card p {
font-size: 0.85rem;
margin: 0;
}

.qt-info-qr {
width: 80px;
height: 80px;
margin-top: 8px;
border-radius: 8px;
}

.qt-process-grid {
display: flex;
align-items: center;
justify-content: center;
gap: 16px;
flex-wrap: wrap;
}

.qt-process-step {
text-align: center;
padding: 32px 24px;
background: #1a1a2e;
border-radius: var(--qt-radius-lg);
box-shadow: 9px 9px 16px rgba(0, 0, 0, 0.5), -9px -9px 16px rgba(50, 50, 80, 0.2);
flex: 1;
min-width: 200px;
opacity: 0;
transform: translateY(30px);
transition: all 0.6s var(--qt-spring);
transition-delay: calc(var(--i) * 0.15s);
}

.qt-section-visible .qt-process-step {
opacity: 1;
transform: translateY(0);
}

.qt-process-num {
font-size: 2.5rem;
font-weight: 800;
color: var(--qt-primary);
margin-bottom: 12px;
}

.qt-process-step h3 {
color: #ffffff;
margin-bottom: 8px;
font-size: 1.1rem;
}

.qt-process-step p {
font-size: 0.85rem;
color: rgba(255, 255, 255, 0.6);
}

.qt-process-connector {
color: var(--qt-secondary);
font-size: 1.5rem;
}

.qt-cta-card {
text-align: center;
padding: 60px 40px;
background: linear-gradient(135deg, var(--qt-primary), #0b8278);
border-radius: var(--qt-radius-lg);
box-shadow: 0 20px 60px rgba(13, 148, 136, 0.3);
}

.qt-cta-card h2 {
color: #ffffff;
margin-bottom: 12px;
}

.qt-cta-card p {
color: rgba(255, 255, 255, 0.8);
font-size: 1.1rem;
margin-bottom: 32px;
}

.qt-cta-actions {
display: flex;
gap: 16px;
justify-content: center;
flex-wrap: wrap;
}

.qt-cta-actions .qt-btn-primary {
background: #ffffff;
color: var(--qt-primary);
border-color: #ffffff;
}

.qt-cta-actions .qt-btn-primary:hover {
background: rgba(255, 255, 255, 0.9);
}

.qt-cta-actions .qt-btn-outline {
color: #ffffff;
border-color: rgba(255, 255, 255, 0.5);
}

.qt-cta-actions .qt-btn-outline:hover {
background: rgba(255, 255, 255, 0.15);
border-color: #ffffff;
}

.qt-page-banner {
padding-top: 120px;
padding-bottom: 60px;
text-align: center;
}

.qt-banner-content h1 {
font-size: clamp(2rem, 5vw, 3rem);
margin-bottom: 12px;
}

.qt-banner-content p {
font-size: 1.05rem;
margin-bottom: 16px;
}

.qt-breadcrumb {
display: flex;
gap: 8px;
justify-content: center;
list-style: none;
padding: 0;
font-size: 0.85rem;
}

.qt-breadcrumb li::after {
content: ' / ';
color: var(--qt-text-secondary);
}

.qt-breadcrumb li:last-child::after {
display: none;
}

.qt-breadcrumb a {
color: var(--qt-primary);
}

.qt-news-list {
display: flex;
flex-direction: column;
gap: 24px;
}

.qt-news-list-card {
display: flex;
gap: 24px;
background: #1a1a2e;
border-radius: var(--qt-radius-lg);
overflow: hidden;
box-shadow: 9px 9px 16px rgba(0, 0, 0, 0.5), -9px -9px 16px rgba(50, 50, 80, 0.2);
opacity: 0;
transform: translateY(20px);
transition: all 0.6s var(--qt-spring);
transition-delay: calc(var(--i) * 0.1s);
}

.qt-section-visible .qt-news-list-card {
opacity: 1;
transform: translateY(0);
}

.qt-news-list-card:hover {
transform: translateY(-4px);
}

.qt-news-list-img {
flex-shrink: 0;
width: 280px;
}

.qt-news-list-img img {
width: 100%;
height: 100%;
object-fit: cover;
filter: brightness(0.85) contrast(1.1);
}

.qt-news-list-body {
padding: 24px;
flex: 1;
}

.qt-news-list-body h3 {
margin-bottom: 8px;
}

.qt-news-list-body h3 a {
color: #ffffff;
}

.qt-news-list-body h3 a:hover {
color: var(--qt-secondary);
}

.qt-news-list-body p {
font-size: 0.9rem;
color: rgba(255, 255, 255, 0.6);
margin-bottom: 12px;
display: -webkit-box;
-webkit-line-clamp: 2;
-webkit-box-orient: vertical;
overflow: hidden;
}

.qt-news-list-tags {
display: flex;
gap: 8px;
flex-wrap: wrap;
margin-bottom: 12px;
}

.qt-tag {
font-size: 0.75rem;
padding: 4px 10px;
border-radius: 12px;
background: rgba(13, 148, 136, 0.2);
color: var(--qt-secondary);
}

.qt-news-list-meta {
display: flex;
gap: 16px;
font-size: 0.8rem;
color: rgba(255, 255, 255, 0.5);
}

.qt-news-list-meta i {
margin-right: 4px;
}

.qt-sidebar {
display: flex;
flex-direction: column;
gap: 24px;
}

.qt-sidebar-card {
padding: 28px;
}

.qt-sidebar-title {
font-size: 1.15rem;
color: #ffffff;
margin-bottom: 20px;
padding-bottom: 12px;
border-bottom: 2px solid var(--qt-primary);
}

.qt-sidebar-list {
display: flex;
flex-direction: column;
gap: 16px;
}

.qt-sidebar-item {
display: flex;
gap: 12px;
transition: all 0.3s var(--qt-spring);
}

.qt-sidebar-item:hover {
transform: translateX(4px);
}

.qt-sidebar-item-img {
width: 80px;
height: 60px;
border-radius: 8px;
overflow: hidden;
flex-shrink: 0;
}

.qt-sidebar-item-img img {
width: 100%;
height: 100%;
object-fit: cover;
}

.qt-sidebar-item-info h5 {
font-size: 0.85rem;
color: rgba(255, 255, 255, 0.8);
line-height: 1.4;
}

.qt-sidebar-item:hover h5 {
color: var(--qt-secondary);
}

.qt-sidebar-contact p {
font-size: 0.9rem;
color: rgba(255, 255, 255, 0.7);
margin-bottom: 8px;
}

.qt-sidebar-contact i {
color: var(--qt-primary);
margin-right: 8px;
}

.qt-detail-article {
background: #1a1a2e;
border-radius: var(--qt-radius-lg);
padding: 40px;
box-shadow: 9px 9px 16px rgba(0, 0, 0, 0.5), -9px -9px 16px rgba(50, 50, 80, 0.2);
}

.qt-detail-header {
margin-bottom: 32px;
padding-bottom: 24px;
border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.qt-detail-header h1 {
font-size: clamp(1.5rem, 4vw, 2.5rem);
color: #ffffff;
margin-bottom: 16px;
}

.qt-detail-meta {
display: flex;
gap: 20px;
flex-wrap: wrap;
font-size: 0.85rem;
color: rgba(255, 255, 255, 0.5);
margin-bottom: 12px;
}

.qt-detail-meta i {
margin-right: 4px;
color: var(--qt-primary);
}

.qt-detail-tags {
display: flex;
gap: 8px;
flex-wrap: wrap;
}

.content {
color: rgba(255, 255, 255, 0.8);
line-height: 1.8;
font-size: 1rem;
}

.content p {
margin-bottom: 16px;
color: rgba(255, 255, 255, 0.8);
}

.content img {
border-radius: 12px;
margin: 20px 0;
}

.content h2, .content h3, .content h4 {
color: #ffffff;
margin: 24px 0 12px;
}

.qt-detail-nav {
margin-top: 40px;
padding-top: 24px;
border-top: 1px solid rgba(255, 255, 255, 0.1);
display: flex;
gap: 16px;
flex-wrap: wrap;
}

.qt-about-text {
padding-right: 40px;
}

.qt-about-desc {
font-size: 1.05rem;
line-height: 1.8;
margin-bottom: 16px;
}

.qt-about-image {
border-radius: var(--qt-radius-lg);
overflow: hidden;
box-shadow: 9px 9px 16px rgba(0, 0, 0, 0.5), -9px -9px 16px rgba(50, 50, 80, 0.2);
}

.qt-about-image img {
width: 100%;
height: 400px;
object-fit: cover;
}

.qt-values-grid {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 24px;
}

.qt-value-card {
padding: 32px 24px;
text-align: center;
opacity: 0;
transform: translateY(30px);
transition: all 0.6s var(--qt-spring);
transition-delay: calc(var(--i) * 0.15s);
}

.qt-section-visible .qt-value-card {
opacity: 1;
transform: translateY(0);
}

.qt-value-icon {
width: 64px;
height: 64px;
border-radius: 50%;
background: var(--qt-primary);
display: flex;
align-items: center;
justify-content: center;
margin: 0 auto 16px;
font-size: 1.5rem;
color: #ffffff;
}

.qt-value-card h3 {
font-size: 1.15rem;
margin-bottom: 8px;
}

.qt-business-grid {
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 24px;
}

.qt-business-item {
text-align: center;
padding: 32px 20px;
background: #1a1a2e;
border-radius: var(--qt-radius-lg);
box-shadow: 9px 9px 16px rgba(0, 0, 0, 0.5), -9px -9px 16px rgba(50, 50, 80, 0.2);
opacity: 0;
transform: translateY(30px);
transition: all 0.6s var(--qt-spring);
transition-delay: calc(var(--i) * 0.15s);
}

.qt-section-visible .qt-business-item {
opacity: 1;
transform: translateY(0);
}

.qt-business-item i {
font-size: 2rem;
color: var(--qt-primary);
margin-bottom: 16px;
display: block;
}

.qt-business-item h4 {
color: #ffffff;
margin-bottom: 8px;
}

.qt-about-contact-grid {
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 24px;
}

.qt-about-contact-card {
text-align: center;
padding: 32px 20px;
opacity: 0;
transform: translateY(30px);
transition: all 0.6s var(--qt-spring);
transition-delay: calc(var(--i) * 0.15s);
}

.qt-section-visible .qt-about-contact-card {
opacity: 1;
transform: translateY(0);
}

.qt-about-contact-card i {
font-size: 2rem;
color: var(--qt-primary);
margin-bottom: 12px;
display: block;
}

.qt-about-contact-card h4 {
font-size: 0.9rem;
margin-bottom: 8px;
}

.qt-contact-main-grid {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 40px;
align-items: start;
}

.qt-contact-form-main {
padding: 40px;
}

.qt-form-row {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 20px;
}

.qt-required {
color: #ef4444;
}

.qt-contact-form-main .qt-form-group input,
.qt-contact-form-main .qt-form-group textarea {
background: rgba(255, 255, 255, 0.05);
border-color: rgba(255, 255, 255, 0.15);
color: #ffffff;
}

.qt-contact-form-main .qt-form-group input:focus,
.qt-contact-form-main .qt-form-group textarea:focus {
border-color: var(--qt-primary);
}

.qt-contact-form-main .qt-form-group label {
color: rgba(255, 255, 255, 0.8);
}

.qt-contact-info-main {
display: flex;
flex-direction: column;
gap: 20px;
}

.qt-info-main-card {
padding: 32px;
text-align: center;
opacity: 0;
transform: translateY(30px);
transition: all 0.6s var(--qt-spring);
transition-delay: calc(var(--i) * 0.15s);
}

.qt-section-visible .qt-info-main-card {
opacity: 1;
transform: translateY(0);
}

.qt-info-main-icon {
width: 56px;
height: 56px;
border-radius: 50%;
background: var(--qt-primary);
display: flex;
align-items: center;
justify-content: center;
margin: 0 auto 16px;
font-size: 1.3rem;
color: #ffffff;
}

.qt-info-main-card h4 {
color: #ffffff;
margin-bottom: 8px;
}

.qt-info-main-value {
font-size: 1.2rem;
color: var(--qt-secondary);
font-weight: 700;
margin-bottom: 4px;
}

.qt-info-main-card span {
font-size: 0.85rem;
color: rgba(255, 255, 255, 0.5);
}

.qt-contact-qr {
width: 100px;
height: 100px;
margin: 12px auto 0;
border-radius: 8px;
}

.qt-faq-list {
display: flex;
flex-direction: column;
gap: 16px;
max-width: 800px;
margin: 0 auto;
}

.qt-faq-item {
padding: 24px 28px;
cursor: pointer;
opacity: 0;
transform: translateY(20px);
transition: all 0.5s var(--qt-spring);
transition-delay: calc(var(--i) * 0.1s);
}

.qt-section-visible .qt-faq-item {
opacity: 1;
transform: translateY(0);
}

.qt-faq-item h4 {
display: flex;
justify-content: space-between;
align-items: center;
font-size: 1rem;
margin: 0;
}

.qt-faq-item h4 i {
transition: transform 0.3s var(--qt-spring);
color: var(--qt-primary);
}

.qt-faq-answer {
max-height: 0;
overflow: hidden;
transition: max-height 0.4s var(--qt-spring);
}

.qt-faq-open .qt-faq-answer {
max-height: 300px;
}

.qt-faq-answer p {
padding-top: 16px;
font-size: 0.9rem;
}

.qt-pagination {
margin-top: 40px;
display: flex;
justify-content: center;
}

.qt-footer {
background: var(--qt-bg-dark);
color: #ffffff;
}

.qt-footer-top {
padding: 60px 0 40px;
border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.qt-footer-title {
font-size: 1.25rem;
margin-bottom: 16px;
color: #ffffff;
}

.qt-footer-desc {
font-size: 0.85rem;
color: rgba(255, 255, 255, 0.6);
margin-bottom: 16px;
line-height: 1.7;
}

.qt-footer-contact p {
font-size: 0.85rem;
color: rgba(255, 255, 255, 0.7);
margin-bottom: 8px;
}

.qt-footer-contact i {
color: var(--qt-primary);
margin-right: 8px;
}

.qt-footer-subtitle {
font-size: 1rem;
margin-bottom: 16px;
color: #ffffff;
}

.qt-footer-link {
display: block;
font-size: 0.85rem;
color: rgba(255, 255, 255, 0.6);
padding: 4px 0;
transition: all 0.3s var(--qt-spring);
}

.qt-footer-link:hover {
color: var(--qt-secondary);
transform: translateX(4px);
}

.qt-footer-wechat {
text-align: center;
}

.qt-wechat-img {
width: 120px;
height: 120px;
border-radius: 8px;
margin-bottom: 8px;
}

.qt-footer-wechat p {
font-size: 0.8rem;
color: rgba(255, 255, 255, 0.5);
}

.qt-footer-links {
padding: 20px 0;
border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.qt-friend-links {
display: flex;
flex-wrap: wrap;
gap: 12px;
align-items: center;
font-size: 0.8rem;
}

.qt-friend-links span {
color: rgba(255, 255, 255, 0.5);
}

.qt-friend-links a {
color: rgba(255, 255, 255, 0.6);
transition: color 0.3s;
}

.qt-friend-links a:hover {
color: var(--qt-secondary);
}

.qt-footer-bottom {
padding: 20px 0;
}

.qt-footer-bottom-inner {
display: flex;
justify-content: space-between;
align-items: center;
flex-wrap: wrap;
gap: 12px;
}

.qt-footer-bottom p {
font-size: 0.8rem;
color: rgba(255, 255, 255, 0.4);
margin: 0;
}

.qt-footer-map-links {
display: flex;
gap: 8px;
align-items: center;
}

.qt-footer-map-links a {
font-size: 0.8rem;
color: rgba(255, 255, 255, 0.5);
}

.qt-footer-map-links a:hover {
color: var(--qt-secondary);
}

.qt-footer-map-links span {
color: rgba(255, 255, 255, 0.3);
}

.qt-toast {
position: fixed;
bottom: 40px;
left: 50%;
transform: translateX(-50%) translateY(20px);
background: var(--qt-text);
color: #ffffff;
padding: 12px 24px;
border-radius: 12px;
font-size: 0.9rem;
z-index: 10000;
opacity: 0;
transition: all 0.3s var(--qt-spring);
box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.qt-toast-show {
opacity: 1;
transform: translateX(-50%) translateY(0);
}

.qt-ripple-effect {
position: absolute;
width: 20px;
height: 20px;
border-radius: 50%;
border: 2px solid currentColor;
transform: translate(-50%, -50%) scale(0);
animation: qtRippleAnim 0.8s ease-out forwards;
pointer-events: none;
}

@keyframes qtRippleAnim {
0% {
transform: translate(-50%, -50%) scale(0);
opacity: 1;
}
100% {
transform: translate(-50%, -50%) scale(3);
opacity: 0;
}
}

.qt-ripple-container {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
pointer-events: none;
z-index: 9999;
}

@media (min-width: 576px) {
.qt-section {
padding: 4vh 0;
}
}

@media (min-width: 992px) {
.qt-section {
padding: 8vh 0;
}
}

@media (min-width: 1400px) {
.qt-section {
padding: 12vh 0;
}
}

@media (max-width: 991px) {
.qt-nav-left,
.qt-nav-right {
display: none;
}

.qt-mobile-toggle {
display: flex;
}

.qt-logo-center {
position: relative;
left: auto;
transform: none;
}

.qt-header-inner {
justify-content: space-between;
}

.qt-advantage-grid,
.qt-services-grid,
.qt-team-grid,
.qt-stats-grid {
grid-template-columns: repeat(2, 1fr);
}

.qt-news-grid {
grid-template-columns: repeat(2, 1fr);
}

.qt-color-grid {
grid-template-columns: repeat(2, 1fr);
}

.qt-contact-grid,
.qt-contact-main-grid {
grid-template-columns: 1fr;
}

.qt-values-grid {
grid-template-columns: repeat(2, 1fr);
}

.qt-business-grid {
grid-template-columns: repeat(2, 1fr);
}

.qt-about-contact-grid {
grid-template-columns: repeat(2, 1fr);
}

.qt-process-grid {
flex-direction: column;
}

.qt-process-connector {
transform: rotate(90deg);
}

.qt-news-list-card {
flex-direction: column;
}

.qt-news-list-img {
width: 100%;
height: 200px;
}

.qt-about-text {
padding-right: 0;
margin-bottom: 32px;
}

.qt-form-row {
grid-template-columns: 1fr;
}

.qt-hero-title {
font-size: clamp(2rem, 6vw, 4rem);
}
}

@media (max-width: 767px) {
.qt-advantage-grid,
.qt-services-grid,
.qt-team-grid,
.qt-stats-grid,
.qt-news-grid,
.qt-values-grid,
.qt-business-grid,
.qt-about-contact-grid {
grid-template-columns: repeat(2, 1fr);
}

.qt-color-grid {
grid-template-columns: repeat(2, 1fr);
}

.qt-city-grid {
grid-template-columns: repeat(3, 1fr);
}

.qt-hero-actions {
flex-direction: column;
}

.qt-hero-actions .qt-btn {
width: 100%;
justify-content: center;
}

.qt-footer-bottom-inner {
flex-direction: column;
text-align: center;
}

.qt-detail-article {
padding: 24px;
}

.qt-contact-form-wrap,
.qt-contact-form-main {
padding: 24px;
}
}

@media (max-width: 480px) {
.qt-advantage-grid,
.qt-services-grid,
.qt-team-grid,
.qt-stats-grid,
.qt-news-grid,
.qt-values-grid,
.qt-business-grid,
.qt-about-contact-grid,
.qt-color-grid {
grid-template-columns: 1fr;
}

.qt-city-grid {
grid-template-columns: repeat(2, 1fr);
}
}

@media (prefers-reduced-motion: reduce) {
*, *::before, *::after {
animation-duration: 0.01ms !important;
animation-iteration-count: 1 !important;
transition-duration: 0.01ms !important;
}

.qt-advantage-card,
.qt-service-card,
.qt-color-card,
.qt-stat-item,
.qt-team-card,
.qt-city-card,
.qt-news-card,
.qt-news-list-card,
.qt-process-step,
.qt-value-card,
.qt-business-item,
.qt-about-contact-card,
.qt-info-main-card,
.qt-faq-item {
opacity: 1 !important;
transform: none !important;
}
}