:root {
--qt-primary: #8B6914;
--qt-secondary: #C4956A;
--qt-accent: #D4A853;
--qt-text: #2C1810;
--qt-text-secondary: #6B5B4E;
--qt-bg: #FAF8F5;
--qt-bg-dark: #2C1810;
--qt-border: #E8E0D5;
--qt-shadow: rgba(44,24,16,0.08);
--qt-gradient-start: #8B6914;
--qt-gradient-end: #D4A853;
}

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

html { scroll-behavior: smooth; }

body {
font-family: 'Noto Serif SC', 'Georgia', 'SimSun', serif;
color: var(--qt-text);
background-color: var(--qt-bg);
line-height: 1.6;
letter-spacing: 0.01em;
overflow-x: hidden;
}

::selection { background: var(--qt-primary); color: #fff; }

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

a { color: var(--qt-primary); text-decoration: none; transition: color 0.3s ease; }
a:hover { color: var(--qt-accent); }

.qt-hollow-text {
background: linear-gradient(135deg, var(--qt-gradient-start), var(--qt-gradient-end));
-webkit-background-clip: text;
background-clip: text;
-webkit-text-fill-color: transparent;
color: transparent;
}

.qt-hollow-text-light {
background: linear-gradient(135deg, #fff, var(--qt-accent));
-webkit-background-clip: text;
background-clip: text;
-webkit-text-fill-color: transparent;
color: transparent;
}

.qt-header {
position: fixed;
top: 0;
left: 0;
width: 100%;
z-index: 1030;
transition: all 0.3s ease;
}

.qt-header-top {
background: var(--qt-bg-dark);
padding: 8px 0;
font-size: 0.8rem;
color: rgba(255,255,255,0.7);
}

.qt-top-info { display: flex; gap: 24px; align-items: center; flex-wrap: wrap; }
.qt-top-info span { display: flex; align-items: center; gap: 6px; }
.qt-top-info i { color: var(--qt-accent); }

.qt-main-nav {
background: rgba(250,248,245,0.95);
backdrop-filter: blur(12px);
border-bottom: 1px solid var(--qt-border);
padding: 12px 0;
transition: all 0.3s ease;
}

.qt-header-scrolled .qt-header-top { display: none; }
.qt-header-scrolled .qt-main-nav { box-shadow: 0 2px 20px var(--qt-shadow); }

.qt-main-nav .container {
display: flex;
align-items: center;
justify-content: space-between;
}

.qt-brand {
display: flex;
align-items: center;
gap: 12px;
}

.qt-brand-logo {
height: 42px;
width: auto;
}

.qt-brand-text {
font-size: 1.3rem;
font-weight: 700;
color: var(--qt-primary);
white-space: nowrap;
}

.qt-nav-list {
display: flex;
align-items: center;
gap: 8px;
list-style: none;
margin: 0;
padding: 0;
}

.qt-nav-link {
padding: 8px 16px;
font-size: 0.95rem;
color: var(--qt-text);
border-radius: 6px;
transition: all 0.3s ease;
position: relative;
font-weight: 500;
}

.qt-nav-link:hover,
.qt-active .qt-nav-link {
color: var(--qt-primary);
background: rgba(139,105,20,0.08);
}

.qt-active .qt-nav-link::after {
content: '';
position: absolute;
bottom: 2px;
left: 50%;
transform: translateX(-50%);
width: 20px;
height: 2px;
background: var(--qt-primary);
border-radius: 1px;
}

.qt-nav-cta-btn {
display: inline-block;
padding: 8px 20px;
background: var(--qt-primary);
color: #fff !important;
border-radius: 20px;
font-size: 0.9rem;
font-weight: 600;
transition: all 0.3s ease;
}

.qt-nav-cta-btn:hover {
background: var(--qt-accent);
transform: translateY(-1px);
box-shadow: 0 4px 12px rgba(139,105,20,0.3);
}

.qt-mobile-toggle {
display: none;
flex-direction: column;
gap: 5px;
background: none;
border: none;
cursor: pointer;
padding: 8px;
}

.qt-mobile-toggle span {
display: block;
width: 24px;
height: 2px;
background: var(--qt-text);
transition: all 0.3s ease;
border-radius: 1px;
}

.qt-toggle-active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.qt-toggle-active span:nth-child(2) { opacity: 0; }
.qt-toggle-active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.qt-dot-nav {
position: fixed;
right: 24px;
top: 50%;
transform: translateY(-50%);
display: flex;
flex-direction: column;
gap: 12px;
z-index: 1020;
}

.qt-dot-item {
width: 10px;
height: 10px;
border-radius: 50%;
background: #d1d5db;
transition: all 0.3s ease;
position: relative;
display: block;
}

.qt-dot-active {
background: var(--qt-primary);
transform: scale(1.5);
}

.qt-dot-tooltip {
position: absolute;
right: 24px;
top: 50%;
transform: translateY(-50%) translateX(8px);
background: var(--qt-bg-dark);
color: #fff;
padding: 4px 12px;
border-radius: 4px;
font-size: 0.75rem;
white-space: nowrap;
opacity: 0;
pointer-events: none;
transition: all 0.3s ease;
}

.qt-dot-item:hover .qt-dot-tooltip {
opacity: 1;
transform: translateY(-50%) translateX(0);
}

.qt-hero {
position: relative;
min-height: 100vh;
display: flex;
align-items: center;
padding: 120px 0 80px;
overflow: hidden;
background: linear-gradient(135deg, #FAF8F5 0%, #f5f0e8 100%);
}

.qt-hero-bg-layer {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%238B6914' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
opacity: 0.5;
}

.qt-hero-paper-texture {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='4' height='4'%3E%3Crect width='4' height='4' fill='%23FAF8F5'/%3E%3Crect width='1' height='1' x='0' y='0' fill='%23000' opacity='0.02'/%3E%3Crect width='1' height='1' x='2' y='2' fill='%23000' opacity='0.015'/%3E%3C/svg%3E");
pointer-events: none;
}

.qt-hero-badge {
display: inline-block;
padding: 6px 18px;
background: rgba(139,105,20,0.1);
border: 1px solid rgba(139,105,20,0.2);
border-radius: 20px;
font-size: 0.85rem;
color: var(--qt-primary);
margin-bottom: 24px;
}

.qt-hero-title {
font-size: clamp(2.2rem, 5vw, 3.8rem);
font-weight: 700;
line-height: 1.2;
margin-bottom: 24px;
color: var(--qt-text);
}

.qt-hero-subtitle {
font-size: 1.1rem;
color: var(--qt-text-secondary);
margin-bottom: 36px;
max-width: 540px;
line-height: 1.8;
}

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

.qt-btn {
display: inline-flex;
align-items: center;
gap: 8px;
padding: 12px 28px;
border-radius: 8px;
font-size: 0.95rem;
font-weight: 600;
transition: all 0.3s ease;
border: none;
cursor: pointer;
text-decoration: none;
}

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

.qt-btn-primary:hover {
background: var(--qt-accent);
color: #fff;
transform: translateY(-2px);
box-shadow: 0 6px 20px rgba(139,105,20,0.3);
}

.qt-btn-outline {
background: transparent;
border: 2px solid var(--qt-primary);
color: var(--qt-primary);
}

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

.qt-btn-lg { padding: 14px 36px; font-size: 1.05rem; }
.qt-btn-sm { padding: 8px 18px; font-size: 0.85rem; }
.qt-btn-block { width: 100%; justify-content: center; }

.qt-hero-stats {
display: flex;
gap: 40px;
}

.qt-stat-item { text-align: center; }
.qt-stat-num { display: block; font-size: 2rem; font-weight: 700; color: var(--qt-primary); }
.qt-stat-label { font-size: 0.85rem; color: var(--qt-text-secondary); }

.qt-hero-visual { position: relative; }

.qt-hero-image-wrap {
position: relative;
border-radius: 16px;
overflow: hidden;
}

.qt-hero-img {
width: 100%;
border-radius: 16px;
box-shadow: 0 20px 60px rgba(44,24,16,0.15);
}

.qt-hero-float-card {
position: absolute;
background: #fff;
padding: 12px 18px;
border-radius: 12px;
box-shadow: 0 8px 24px var(--qt-shadow);
display: flex;
align-items: center;
gap: 10px;
font-size: 0.85rem;
font-weight: 600;
color: var(--qt-text);
}

.qt-hero-float-card i { font-size: 1.2rem; color: var(--qt-primary); }

.qt-float-card-1 { top: 20%; left: -20px; animation: qtFloat 3s ease-in-out infinite; }
.qt-float-card-2 { bottom: 20%; right: -20px; animation: qtFloat 3s ease-in-out infinite 1.5s; }

@keyframes qtFloat {
0%, 100% { transform: translateY(0); }
50% { transform: translateY(-10px); }
}

.qt-section {
padding: 8vh 0;
position: relative;
}

.qt-section-alt {
background: #f5f0e8;
}

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

.qt-section-header {
text-align: center;
margin-bottom: 3rem;
}

.qt-section-title {
font-size: clamp(2rem, 4vw, 3.5rem);
font-weight: 700;
margin-bottom: 1rem;
}

.qt-title-light { color: #fff; }

.qt-section-desc {
font-size: 1.05rem;
color: var(--qt-text-secondary);
max-width: 600px;
margin: 0 auto;
}

.qt-desc-light { color: rgba(255,255,255,0.7); }

.qt-service-card-wrap { margin-bottom: 24px; }

.qt-service-card {
background: #fff;
border: 1px solid var(--qt-border);
border-radius: 16px;
padding: 36px 28px;
transition: all 0.3s ease;
height: 100%;
position: relative;
overflow: hidden;
}

.qt-service-card::before {
content: '';
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 3px;
background: linear-gradient(90deg, var(--qt-primary), var(--qt-accent));
transform: scaleX(0);
transition: transform 0.3s ease;
}

.qt-service-card:hover {
transform: translateY(-6px);
box-shadow: 0 12px 40px var(--qt-shadow);
}

.qt-service-card:hover::before { transform: scaleX(1); }

.qt-service-icon {
width: 56px;
height: 56px;
border-radius: 12px;
background: linear-gradient(135deg, rgba(139,105,20,0.1), rgba(212,168,83,0.1));
display: flex;
align-items: center;
justify-content: center;
margin-bottom: 20px;
}

.qt-service-icon i { font-size: 1.5rem; color: var(--qt-primary); }

.qt-service-card h3 {
font-size: 1.2rem;
margin-bottom: 12px;
color: var(--qt-text);
}

.qt-service-card p {
font-size: 0.9rem;
color: var(--qt-text-secondary);
margin-bottom: 16px;
line-height: 1.7;
}

.qt-service-link {
font-size: 0.9rem;
font-weight: 600;
color: var(--qt-primary);
display: inline-flex;
align-items: center;
gap: 6px;
}

.qt-service-link:hover { gap: 10px; }

.qt-about-image-grid {
position: relative;
height: 420px;
}

.qt-about-img-1 {
position: absolute;
top: 0;
left: 0;
width: 65%;
height: 70%;
object-fit: cover;
border-radius: 12px;
box-shadow: 0 8px 30px var(--qt-shadow);
}

.qt-about-img-2 {
position: absolute;
bottom: 0;
right: 0;
width: 55%;
height: 60%;
object-fit: cover;
border-radius: 12px;
box-shadow: 0 8px 30px var(--qt-shadow);
border: 4px solid #fff;
}

.qt-about-experience-badge {
position: absolute;
bottom: 30%;
left: 50%;
transform: translateX(-50%);
background: var(--qt-primary);
color: #fff;
padding: 16px 24px;
border-radius: 12px;
text-align: center;
box-shadow: 0 8px 24px rgba(139,105,20,0.3);
z-index: 2;
}

.qt-exp-num { display: block; font-size: 2.5rem; font-weight: 700; line-height: 1; }
.qt-exp-text { font-size: 0.8rem; opacity: 0.9; }

.qt-about-heading {
font-size: 1.5rem;
margin-bottom: 16px;
color: var(--qt-text);
}

.qt-about-text {
font-size: 1rem;
color: var(--qt-text-secondary);
margin-bottom: 28px;
line-height: 1.8;
}

.qt-about-features { margin-bottom: 28px; }

.qt-about-feature {
display: flex;
gap: 16px;
margin-bottom: 20px;
align-items: flex-start;
}

.qt-about-feature i {
font-size: 1.5rem;
color: var(--qt-primary);
flex-shrink: 0;
margin-top: 4px;
}

.qt-about-feature h5 {
font-size: 1rem;
margin-bottom: 4px;
color: var(--qt-text);
}

.qt-about-feature p {
font-size: 0.9rem;
color: var(--qt-text-secondary);
margin: 0;
}

.qt-process-timeline {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 32px;
}

.qt-process-step {
text-align: center;
padding: 28px 20px;
border: 1px solid rgba(255,255,255,0.1);
border-radius: 12px;
transition: all 0.3s ease;
}

.qt-process-step:hover {
background: rgba(255,255,255,0.05);
transform: translateY(-4px);
}

.qt-process-num {
font-size: 2.5rem;
font-weight: 700;
color: var(--qt-accent);
margin-bottom: 12px;
opacity: 0.8;
}

.qt-process-content h4 {
font-size: 1.1rem;
margin-bottom: 8px;
color: #fff;
}

.qt-process-content p {
font-size: 0.9rem;
color: rgba(255,255,255,0.7);
line-height: 1.6;
}

.qt-network-container {
position: relative;
height: 500px;
background: #fff;
border: 1px solid var(--qt-border);
border-radius: 16px;
overflow: hidden;
}

.qt-network-container canvas {
width: 100%;
height: 100%;
}

.qt-network-legend {
position: absolute;
bottom: 16px;
left: 16px;
display: flex;
gap: 16px;
flex-wrap: wrap;
}

.qt-legend-item {
display: flex;
align-items: center;
gap: 6px;
font-size: 0.8rem;
color: var(--qt-text-secondary);
}

.qt-legend-item i { font-size: 0.6rem; }

.qt-testimonial-carousel {
position: relative;
overflow: hidden;
}

.qt-testimonial-track {
position: relative;
min-height: 280px;
}

.qt-testimonial-slide {
position: absolute;
top: 0;
left: 0;
width: 100%;
opacity: 0;
transform: translateX(30px);
transition: all 0.5s ease;
pointer-events: none;
}

.qt-testimonial-slide.qt-active {
opacity: 1;
transform: translateX(0);
pointer-events: all;
position: relative;
}

.qt-testimonial-card {
background: #fff;
border: 1px solid var(--qt-border);
border-radius: 16px;
padding: 40px 36px;
position: relative;
}

.qt-quote-icon {
position: absolute;
top: 20px;
left: 28px;
font-size: 4rem;
color: rgba(139,105,20,0.1);
line-height: 1;
}

.qt-testimonial-text {
font-size: 1.1rem;
font-style: italic;
color: var(--qt-text);
line-height: 1.8;
margin-bottom: 24px;
position: relative;
z-index: 1;
}

.qt-testimonial-author {
display: flex;
align-items: center;
gap: 14px;
}

.qt-author-avatar {
width: 48px;
height: 48px;
border-radius: 50%;
background: linear-gradient(135deg, var(--qt-primary), var(--qt-accent));
display: flex;
align-items: center;
justify-content: center;
color: #fff;
font-size: 1.2rem;
}

.qt-testimonial-author h5 {
font-size: 1rem;
margin-bottom: 2px;
color: var(--qt-text);
}

.qt-testimonial-author span {
font-size: 0.85rem;
color: var(--qt-text-secondary);
}

.qt-carousel-controls {
display: flex;
align-items: center;
justify-content: center;
gap: 16px;
margin-top: 24px;
}

.qt-carousel-btn {
width: 40px;
height: 40px;
border-radius: 50%;
border: 1px solid var(--qt-border);
background: #fff;
display: flex;
align-items: center;
justify-content: center;
cursor: pointer;
transition: all 0.3s ease;
color: var(--qt-text);
}

.qt-carousel-btn:hover {
background: var(--qt-primary);
color: #fff;
border-color: var(--qt-primary);
}

.qt-carousel-dots { display: flex; gap: 8px; }

.qt-carousel-dot {
width: 8px;
height: 8px;
border-radius: 50%;
background: var(--qt-border);
border: none;
cursor: pointer;
transition: all 0.3s ease;
padding: 0;
}

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

.qt-physics-container {
position: relative;
height: 400px;
background: linear-gradient(135deg, #f5f0e8, #FAF8F5);
border: 1px solid var(--qt-border);
border-radius: 16px;
overflow: hidden;
}

.qt-physics-container canvas {
width: 100%;
height: 100%;
cursor: grab;
}

.qt-physics-container canvas:active { cursor: grabbing; }

.qt-physics-hint {
position: absolute;
bottom: 16px;
right: 16px;
background: rgba(255,255,255,0.9);
padding: 8px 16px;
border-radius: 20px;
font-size: 0.8rem;
color: var(--qt-text-secondary);
display: flex;
align-items: center;
gap: 6px;
}

.qt-news-card-wrap { margin-bottom: 24px; }

.qt-news-card {
background: #fff;
border: 1px solid var(--qt-border);
border-radius: 12px;
overflow: hidden;
transition: all 0.3s ease;
height: 100%;
}

.qt-news-card:hover {
transform: translateY(-4px);
box-shadow: 0 8px 30px var(--qt-shadow);
}

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

.qt-news-img-wrap img {
width: 100%;
height: 100%;
object-fit: cover;
transition: transform 0.3s ease;
}

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

.qt-news-date-badge {
position: absolute;
top: 12px;
left: 12px;
background: var(--qt-primary);
color: #fff;
padding: 6px 10px;
border-radius: 8px;
text-align: center;
line-height: 1.2;
}

.qt-date-day { display: block; font-size: 1.2rem; font-weight: 700; }
.qt-date-month { display: block; font-size: 0.7rem; opacity: 0.8; }

.qt-news-body { padding: 20px; }

.qt-news-body h3 {
font-size: 1.05rem;
margin-bottom: 10px;
line-height: 1.4;
}

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

.qt-news-body p {
font-size: 0.9rem;
color: var(--qt-text-secondary);
margin-bottom: 12px;
display: -webkit-box;
-webkit-line-clamp: 2;
-webkit-box-orient: vertical;
overflow: hidden;
}

.qt-news-read-more {
font-size: 0.85rem;
font-weight: 600;
color: var(--qt-primary);
display: inline-flex;
align-items: center;
gap: 4px;
}

.qt-city-grid {
display: grid;
grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
gap: 10px;
}

.qt-city-card {
display: flex;
align-items: center;
justify-content: center;
padding: 10px 8px;
background: #fff;
border: 1px solid var(--qt-border);
border-radius: 8px;
text-align: center;
transition: all 0.3s ease;
}

.qt-city-card:hover {
background: var(--qt-primary);
border-color: var(--qt-primary);
transform: translateY(-2px);
}

.qt-city-card:hover h5 { color: #fff; }

.qt-city-card h5 {
font-size: 0.85rem;
margin: 0;
color: var(--qt-text);
transition: color 0.3s ease;
}

.qt-section-cta {
background: linear-gradient(135deg, var(--qt-bg-dark) 0%, #3d2a1a 100%);
padding: 10vh 0;
position: relative;
overflow: hidden;
}

.qt-cta-bg-pattern {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M20 20.5V18H0v-2h20v-2H0v-2h20v-2H0V8h20V6H0V4h20V2H0V0h22v20h2V0h2v20h2V0h2v20h2V0h2v20h2V0h2v22H20v-1.5z' fill='%23ffffff' fill-opacity='0.02'/%3E%3C/svg%3E");
}

.qt-cta-content {
text-align: center;
position: relative;
z-index: 1;
}

.qt-cta-title {
font-size: clamp(2rem, 4vw, 3rem);
margin-bottom: 16px;
}

.qt-cta-desc {
font-size: 1.1rem;
color: rgba(255,255,255,0.7);
margin-bottom: 32px;
max-width: 600px;
margin-left: auto;
margin-right: auto;
}

.qt-cta-actions {
display: flex;
gap: 16px;
justify-content: center;
flex-wrap: wrap;
margin-bottom: 32px;
}

.qt-btn-cta-primary {
background: var(--qt-accent);
color: var(--qt-bg-dark);
font-weight: 700;
padding: 14px 36px;
border-radius: 8px;
}

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

.qt-btn-cta-secondary {
background: transparent;
border: 2px solid rgba(255,255,255,0.3);
color: #fff;
padding: 14px 36px;
border-radius: 8px;
}

.qt-btn-cta-secondary:hover {
border-color: #fff;
background: rgba(255,255,255,0.1);
color: #fff;
}

.qt-cta-trust {
display: flex;
gap: 24px;
justify-content: center;
flex-wrap: wrap;
}

.qt-cta-trust span {
display: flex;
align-items: center;
gap: 6px;
font-size: 0.85rem;
color: rgba(255,255,255,0.6);
}

.qt-cta-trust i { color: var(--qt-accent); }

.qt-page-banner {
padding: 140px 0 60px;
background: linear-gradient(135deg, #f5f0e8, #FAF8F5);
position: relative;
text-align: center;
}

.qt-banner-texture {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='4' height='4'%3E%3Crect width='4' height='4' fill='%23f5f0e8'/%3E%3Crect width='1' height='1' x='0' y='0' fill='%23000' opacity='0.02'/%3E%3C/svg%3E");
pointer-events: none;
}

.qt-banner-title {
font-size: clamp(1.8rem, 3.5vw, 2.8rem);
margin-bottom: 12px;
position: relative;
}

.qt-banner-desc {
font-size: 1rem;
color: var(--qt-text-secondary);
margin-bottom: 16px;
position: relative;
}

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

.qt-breadcrumb li + li::before {
content: '/';
margin-right: 8px;
color: var(--qt-text-secondary);
}

.qt-breadcrumb a { color: var(--qt-primary); }
.qt-breadcrumb li:last-child { color: var(--qt-text-secondary); }

.qt-news-list-item {
display: flex;
gap: 24px;
padding: 24px;
background: #fff;
border: 1px solid var(--qt-border);
border-radius: 12px;
margin-bottom: 20px;
transition: all 0.3s ease;
}

.qt-news-list-item:hover {
box-shadow: 0 6px 24px var(--qt-shadow);
transform: translateY(-2px);
}

.qt-news-list-img {
flex-shrink: 0;
border-radius: 8px;
overflow: hidden;
}

.qt-news-list-img img {
display: block;
border-radius: 8px;
}

.qt-news-list-body h3 {
font-size: 1.15rem;
margin-bottom: 10px;
}

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

.qt-news-list-body p {
font-size: 0.9rem;
color: var(--qt-text-secondary);
margin-bottom: 12px;
line-height: 1.6;
}

.qt-news-tags {
display: flex;
gap: 8px;
flex-wrap: wrap;
margin-bottom: 10px;
}

.qt-tag {
display: inline-block;
padding: 3px 10px;
background: rgba(139,105,20,0.08);
color: var(--qt-primary);
border-radius: 4px;
font-size: 0.75rem;
}

.qt-news-meta {
font-size: 0.8rem;
color: var(--qt-text-secondary);
}

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

.qt-sidebar { position: sticky; top: 100px; }

.qt-sidebar-widget {
background: #fff;
border: 1px solid var(--qt-border);
border-radius: 12px;
padding: 24px;
margin-bottom: 20px;
}

.qt-sidebar-title {
font-size: 1.1rem;
margin-bottom: 16px;
padding-bottom: 12px;
border-bottom: 2px solid var(--qt-border);
color: var(--qt-text);
}

.qt-sidebar-rec-item { margin-bottom: 14px; }
.qt-sidebar-rec-item:last-child { margin-bottom: 0; }

.qt-sidebar-rec-link {
display: flex;
gap: 12px;
align-items: center;
}

.qt-sidebar-rec-link img {
width: 64px;
height: 48px;
object-fit: cover;
border-radius: 6px;
flex-shrink: 0;
}

.qt-sidebar-rec-link h5 {
font-size: 0.85rem;
margin: 0;
color: var(--qt-text);
line-height: 1.4;
}

.qt-sidebar-rec-link:hover h5 { color: var(--qt-primary); }

.qt-sidebar-contact p {
font-size: 0.9rem;
margin-bottom: 10px;
color: var(--qt-text-secondary);
}

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

.qt-sidebar-stats { margin-top: 8px; }

.qt-stat-row {
display: flex;
justify-content: space-between;
padding: 8px 0;
border-bottom: 1px solid var(--qt-border);
font-size: 0.9rem;
}

.qt-stat-row:last-child { border-bottom: none; }
.qt-stat-row strong { color: var(--qt-primary); }

.qt-article-detail {
background: #fff;
border: 1px solid var(--qt-border);
border-radius: 16px;
padding: 40px;
margin-bottom: 32px;
}

.qt-article-title {
font-size: 1.8rem;
margin-bottom: 16px;
color: var(--qt-text);
line-height: 1.4;
}

.qt-article-meta {
display: flex;
gap: 20px;
flex-wrap: wrap;
margin-bottom: 16px;
font-size: 0.85rem;
color: var(--qt-text-secondary);
padding-bottom: 16px;
border-bottom: 1px solid var(--qt-border);
}

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

.qt-article-tags {
display: flex;
gap: 8px;
flex-wrap: wrap;
margin-bottom: 24px;
}

.qt-article-content {
font-size: 1rem;
line-height: 1.8;
color: var(--qt-text);
}

.qt-article-content img {
max-width: 100%;
border-radius: 8px;
margin: 16px 0;
}

.qt-article-content p { margin-bottom: 16px; }

.qt-article-content h2,
.qt-article-content h3 {
margin: 24px 0 12px;
color: var(--qt-text);
}

.qt-article-footer {
margin-top: 32px;
padding-top: 20px;
border-top: 1px solid var(--qt-border);
}

.qt-article-share {
display: flex;
align-items: center;
gap: 12px;
font-size: 0.9rem;
color: var(--qt-text-secondary);
}

.qt-share-btn {
width: 36px;
height: 36px;
border-radius: 50%;
background: rgba(139,105,20,0.08);
display: flex;
align-items: center;
justify-content: center;
color: var(--qt-primary);
transition: all 0.3s ease;
}

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

.qt-related-articles { margin-top: 32px; }

.qt-related-title {
font-size: 1.3rem;
margin-bottom: 20px;
color: var(--qt-text);
}

.qt-related-card-wrap { margin-bottom: 16px; }

.qt-related-card {
display: block;
background: #fff;
border: 1px solid var(--qt-border);
border-radius: 10px;
overflow: hidden;
transition: all 0.3s ease;
}

.qt-related-card:hover {
transform: translateY(-3px);
box-shadow: 0 6px 20px var(--qt-shadow);
}

.qt-related-card img {
width: 100%;
height: 120px;
object-fit: cover;
}

.qt-related-card h5 {
padding: 12px;
font-size: 0.9rem;
margin: 0;
color: var(--qt-text);
}

.qt-about-detail-img { margin-bottom: 24px; }

.qt-about-main-img {
width: 100%;
border-radius: 16px;
box-shadow: 0 12px 40px var(--qt-shadow);
}

.qt-about-detail-title {
font-size: clamp(1.5rem, 3vw, 2.2rem);
margin-bottom: 16px;
}

.qt-about-detail-desc {
font-size: 1rem;
color: var(--qt-text-secondary);
line-height: 1.8;
margin-bottom: 28px;
}

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

.qt-value-item {
padding: 20px;
background: rgba(139,105,20,0.04);
border-radius: 12px;
border: 1px solid var(--qt-border);
}

.qt-value-item i {
font-size: 1.5rem;
color: var(--qt-primary);
margin-bottom: 10px;
display: block;
}

.qt-value-item h5 {
font-size: 1rem;
margin-bottom: 8px;
color: var(--qt-text);
}

.qt-value-item p {
font-size: 0.85rem;
color: var(--qt-text-secondary);
margin: 0;
line-height: 1.6;
}

.qt-advantage-card-wrap { margin-bottom: 24px; }

.qt-advantage-card {
text-align: center;
padding: 32px 20px;
background: #fff;
border: 1px solid var(--qt-border);
border-radius: 12px;
transition: all 0.3s ease;
height: 100%;
}

.qt-advantage-card:hover {
transform: translateY(-4px);
box-shadow: 0 8px 24px var(--qt-shadow);
}

.qt-adv-icon {
width: 60px;
height: 60px;
border-radius: 50%;
background: linear-gradient(135deg, rgba(139,105,20,0.1), rgba(212,168,83,0.15));
display: flex;
align-items: center;
justify-content: center;
margin: 0 auto 16px;
}

.qt-adv-icon i { font-size: 1.5rem; color: var(--qt-primary); }

.qt-advantage-card h4 {
font-size: 1.1rem;
margin-bottom: 8px;
color: var(--qt-text);
}

.qt-advantage-card p {
font-size: 0.9rem;
color: var(--qt-text-secondary);
margin: 0;
}

.qt-core-industry {
background: rgba(139,105,20,0.04);
border: 1px solid var(--qt-border);
border-radius: 12px;
padding: 24px;
margin-bottom: 24px;
}

.qt-core-industry p {
font-size: 1.05rem;
color: var(--qt-text);
line-height: 1.8;
}

.qt-about-address h3 {
font-size: 1.1rem;
margin-bottom: 8px;
margin-top: 16px;
color: var(--qt-text);
}

.qt-about-address p {
font-size: 0.95rem;
color: var(--qt-text-secondary);
margin-bottom: 6px;
}

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

.qt-contact-info-panel {
background: #fff;
border: 1px solid var(--qt-border);
border-radius: 16px;
padding: 36px;
height: 100%;
}

.qt-contact-panel-title {
font-size: 1.5rem;
margin-bottom: 12px;
}

.qt-contact-panel-desc {
font-size: 0.95rem;
color: var(--qt-text-secondary);
margin-bottom: 28px;
line-height: 1.7;
}

.qt-contact-items { margin-bottom: 28px; }

.qt-contact-item {
display: flex;
gap: 16px;
margin-bottom: 20px;
align-items: flex-start;
}

.qt-contact-icon {
width: 44px;
height: 44px;
border-radius: 10px;
background: linear-gradient(135deg, rgba(139,105,20,0.1), rgba(212,168,83,0.1));
display: flex;
align-items: center;
justify-content: center;
flex-shrink: 0;
}

.qt-contact-icon i { font-size: 1.1rem; color: var(--qt-primary); }

.qt-contact-item h5 {
font-size: 0.95rem;
margin-bottom: 4px;
color: var(--qt-text);
}

.qt-contact-item p {
font-size: 0.9rem;
color: var(--qt-text-secondary);
margin: 0;
}

.qt-contact-wechat-qr {
text-align: center;
padding-top: 20px;
border-top: 1px solid var(--qt-border);
}

.qt-contact-wechat-qr img {
width: 140px;
height: 140px;
object-fit: contain;
border-radius: 8px;
border: 1px solid var(--qt-border);
margin-bottom: 8px;
}

.qt-contact-wechat-qr p {
font-size: 0.8rem;
color: var(--qt-text-secondary);
margin: 0;
}

.qt-contact-form-panel {
background: #fff;
border: 1px solid var(--qt-border);
border-radius: 16px;
padding: 36px;
}

.qt-contact-form-title {
font-size: 1.5rem;
margin-bottom: 8px;
color: var(--qt-text);
}

.qt-contact-form-desc {
font-size: 0.95rem;
color: var(--qt-text-secondary);
margin-bottom: 28px;
}

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

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

.qt-required { color: #e74c3c; }

.qt-form-group input,
.qt-form-group textarea {
width: 100%;
padding: 12px 16px;
border: 1px solid var(--qt-border);
border-radius: 8px;
font-size: 0.95rem;
color: var(--qt-text);
background: var(--qt-bg);
transition: border-color 0.3s ease;
font-family: inherit;
}

.qt-form-group input:focus,
.qt-form-group textarea:focus {
outline: none;
border-color: var(--qt-primary);
box-shadow: 0 0 0 3px rgba(139,105,20,0.1);
}

.qt-form-message {
margin-top: 16px;
padding: 12px 16px;
border-radius: 8px;
font-size: 0.9rem;
display: none;
}

.qt-form-error {
display: block;
background: #fef2f2;
color: #dc2626;
border: 1px solid #fecaca;
}

.qt-form-success {
display: block;
background: #f0fdf4;
color: #16a34a;
border: 1px solid #bbf7d0;
}

.qt-footer {
background: var(--qt-bg-dark);
color: rgba(255,255,255,0.7);
}

.qt-footer-top {
padding: 60px 0 40px;
}

.qt-footer-col { margin-bottom: 24px; }

.qt-footer-logo {
height: 40px;
margin-bottom: 16px;
filter: brightness(0) invert(1);
opacity: 0.8;
}

.qt-footer-desc {
font-size: 0.85rem;
line-height: 1.7;
margin-bottom: 16px;
}

.qt-footer-contact-info p {
font-size: 0.85rem;
margin-bottom: 6px;
}

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

.qt-footer-title {
font-size: 1rem;
color: #fff;
margin-bottom: 16px;
font-weight: 600;
}

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

.qt-footer-links li { margin-bottom: 8px; }

.qt-footer-links a {
font-size: 0.85rem;
color: rgba(255,255,255,0.6);
transition: color 0.3s ease;
}

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

.qt-footer-wechat { margin-bottom: 20px; }

.qt-wechat-img {
width: 100px;
height: 100px;
object-fit: contain;
border-radius: 8px;
margin-bottom: 8px;
}

.qt-footer-wechat p {
font-size: 0.8rem;
margin: 0;
}

.qt-footer-friend h6 {
font-size: 0.85rem;
color: #fff;
margin-bottom: 8px;
}

.qt-friend-list {
display: flex;
flex-wrap: wrap;
gap: 8px;
}

.qt-friend-list a {
font-size: 0.75rem;
color: rgba(255,255,255,0.5);
padding: 2px 8px;
border: 1px solid rgba(255,255,255,0.15);
border-radius: 4px;
transition: all 0.3s ease;
}

.qt-friend-list a:hover {
color: var(--qt-accent);
border-color: var(--qt-accent);
}

.qt-footer-bottom {
border-top: 1px solid rgba(255,255,255,0.1);
padding: 16px 0;
text-align: center;
}

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

.qt-back-top {
position: fixed;
bottom: 30px;
right: 30px;
width: 44px;
height: 44px;
border-radius: 50%;
background: var(--qt-primary);
color: #fff;
display: flex;
align-items: center;
justify-content: center;
cursor: pointer;
opacity: 0;
visibility: hidden;
transition: all 0.3s ease;
z-index: 1010;
box-shadow: 0 4px 12px rgba(139,105,20,0.3);
}

.qt-back-top.qt-visible {
opacity: 1;
visibility: visible;
}

.qt-back-top:hover {
background: var(--qt-accent);
transform: translateY(-3px);
}

.qt-animate-in {
opacity: 0;
transform: translateY(30px);
transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.qt-animated {
opacity: 1;
transform: translateY(0);
}

.qt-pagination-wrap {
margin-top: 32px;
display: flex;
justify-content: center;
}

.qt-pagination-wrap .pagination {
gap: 4px;
}

.qt-pagination-wrap .page-link {
padding: 8px 14px;
border-radius: 6px;
border: 1px solid var(--qt-border);
color: var(--qt-text);
font-size: 0.9rem;
}

.qt-pagination-wrap .page-item.active .page-link {
background: var(--qt-primary);
border-color: var(--qt-primary);
color: #fff;
}

.qt-main-content {
padding-top: 0;
}

.qt-header + .qt-main-content {
margin-top: 0;
}

@media (max-width: 991px) {
.qt-hero { padding: 120px 0 60px; min-height: auto; }
.qt-hero-visual { margin-top: 40px; }
.qt-process-timeline { grid-template-columns: repeat(2, 1fr); }
.qt-about-values { grid-template-columns: 1fr; }
.qt-news-list-item { flex-direction: column; }
.qt-news-list-img img { width: 100% !important; height: 200px !important; }
}

@media (max-width: 767px) {
.qt-mobile-toggle { display: flex; }
.qt-nav-list {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100vh;
background: var(--qt-bg);
flex-direction: column;
justify-content: center;
align-items: center;
gap: 16px;
transform: translateX(-100%);
transition: transform 0.3s ease;
z-index: 1025;
}
.qt-nav-list.qt-nav-open { transform: translateX(0); }
.qt-nav-link { font-size: 1.2rem; padding: 12px 24px; }
.qt-dot-nav { display: none; }
.qt-hero-stats { gap: 20px; }
.qt-stat-num { font-size: 1.5rem; }
.qt-process-timeline { grid-template-columns: 1fr; }
.qt-section { padding: 6vh 0; }
.qt-article-detail { padding: 24px; }
.qt-contact-info-panel,
.qt-contact-form-panel { padding: 24px; }
.qt-about-image-grid { height: 300px; }
.qt-city-grid { grid-template-columns: repeat(auto-fill, minmax(80px, 1fr)); gap: 8px; }
.qt-city-card { padding: 8px 6px; }
.qt-city-card h5 { font-size: 0.75rem; }
.qt-footer-top { padding: 40px 0 24px; }
.qt-top-info { justify-content: center; font-size: 0.75rem; gap: 12px; }
.qt-top-wechat { display: none; }
.qt-physics-container { height: 300px; }
.qt-network-container { height: 350px; }
.qt-hero-float-card { display: none; }
}

@media (prefers-reduced-motion: reduce) {
*, *::before, *::after {
animation-duration: 0.01ms !important;
transition-duration: 0.01ms !important;
}
.qt-animate-in { opacity: 1; transform: none; }
.qt-parallax-layer { transform: none !important; }
}