:root {
  --qt-primary: #2563EB;
  --qt-secondary: #60A5FA;
  --qt-accent: #F59E0B;
  --qt-text: #16233A;
  --qt-text-secondary: #5C6B80;
  --qt-bg: #F8FAFC;
  --qt-bg-dark: #0F2744;
  --qt-border: #DEE2E6;
  --qt-shadow: rgba(15, 39, 68, 0.12);
  --qt-gradient-start: #2563EB;
  --qt-gradient-end: #06B6D4;
  --qt-radius-sm: 8px;
  --qt-radius: 16px;
  --qt-radius-lg: 24px;
  --qt-radius-pill: 9999px;
  --qt-space-1: 4px;
  --qt-space-2: 8px;
  --qt-space-3: 12px;
  --qt-space-4: 16px;
  --qt-space-5: 20px;
  --qt-space-6: 24px;
  --qt-space-8: 32px;
  --qt-space-10: 40px;
  --qt-space-12: 48px;
  --qt-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --qt-font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", Arial, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--qt-font);
  font-size: 14px;
  line-height: 1.5;
  color: var(--qt-text);
  background: var(--qt-bg);
  overflow-x: hidden;
}

::selection {
  background: #000;
  color: #fff;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

.qt-body {
  min-height: 100vh;
  background: linear-gradient(180deg, #fff 0%, var(--qt-bg) 42%, #eef4ff 100%);
}

.qt-skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 99999;
  padding: var(--qt-space-3) var(--qt-space-4);
  background: var(--qt-primary);
  color: #fff;
  border-radius: var(--qt-radius-pill);
}

.qt-skip-link:focus {
  left: var(--qt-space-4);
  top: var(--qt-space-4);
}

.qt-glass {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 32px var(--qt-shadow);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
}

@supports not (backdrop-filter: blur(20px)) {
  .qt-glass {
    background: rgba(255, 255, 255, 0.86);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

.qt-site-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: rgba(255, 255, 255, 0.58);
  border-bottom: 1px solid rgba(37, 99, 235, 0.12);
  transition: box-shadow 0.3s var(--qt-ease), background 0.3s var(--qt-ease);
}

.qt-header-scrolled {
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 12px 28px var(--qt-shadow);
}

.qt-header-inner {
  display: flex;
  align-items: center;
  gap: var(--qt-space-3);
  padding: var(--qt-space-3) var(--qt-space-5);
  min-height: 72px;
}

.qt-brand {
  flex: 0 0 auto;
}

.qt-brand-link {
  display: flex;
  align-items: center;
  gap: var(--qt-space-2);
}

.qt-brand-logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
  border-radius: var(--qt-radius-sm);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--qt-border);
}

.qt-brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.qt-brand-name {
  font-size: 18px;
  font-weight: 800;
  color: var(--qt-primary);
}

.qt-brand-sub {
  font-size: 12px;
  color: var(--qt-text-secondary);
  white-space: nowrap;
}

.qt-nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--qt-border);
  border-radius: var(--qt-radius-pill);
  background: rgba(255, 255, 255, 0.78);
  color: var(--qt-primary);
  font-size: 20px;
  cursor: pointer;
  transition: transform 0.2s var(--qt-ease), background 0.2s var(--qt-ease);
}

.qt-main-nav {
  flex: 0 0 auto;
}

.qt-nav-list {
  display: flex;
  align-items: center;
  gap: var(--qt-space-1);
  list-style: none;
  margin: 0;
  padding: 0;
}

.qt-nav-item {
  position: relative;
}

.qt-nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: var(--qt-space-2) var(--qt-space-3);
  border-radius: var(--qt-radius-pill);
  color: var(--qt-text);
  font-size: 14px;
  font-weight: 600;
  transition: color 0.2s var(--qt-ease), background 0.2s var(--qt-ease), transform 0.2s var(--qt-ease);
}

.qt-nav-link:hover,
.qt-nav-active .qt-nav-link {
  color: var(--qt-primary);
  background: rgba(37, 99, 235, 0.1);
}

.qt-search-dominant {
  flex: 1 1 50%;
  max-width: 50%;
  min-width: 280px;
  margin: 0 auto;
}

.qt-search-form {
  display: flex;
  align-items: center;
  gap: var(--qt-space-2);
  width: 100%;
  padding: var(--qt-space-1);
  background: #fff;
  border: 2px solid #e5e7eb;
  border-radius: var(--qt-radius-pill);
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.06);
  transition: border-color 0.25s var(--qt-ease), box-shadow 0.25s var(--qt-ease);
}

.qt-search-form:focus-within {
  border-color: var(--qt-primary);
  box-shadow: 0 12px 32px rgba(37, 99, 235, 0.18);
}

.qt-search-icon {
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: var(--qt-radius-pill);
  background: transparent;
  color: var(--qt-primary);
  font-size: 16px;
  cursor: pointer;
}

.qt-search-input {
  flex: 1 1 auto;
  min-width: 0;
  height: 36px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--qt-text);
}

.qt-search-input::placeholder {
  color: var(--qt-text-secondary);
}

.qt-search-submit {
  height: 36px;
  padding: 0 var(--qt-space-4);
  border: 0;
  border-radius: var(--qt-radius-pill);
  background: var(--qt-primary);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s var(--qt-ease), transform 0.2s var(--qt-ease);
}

.qt-search-submit:hover {
  background: #1d4ed8;
}

.qt-search-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--qt-space-1);
  margin-top: var(--qt-space-2);
}

.qt-icon-actions {
  display: flex;
  align-items: center;
  gap: var(--qt-space-2);
  flex: 0 0 auto;
}

.qt-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--qt-radius-pill);
  background: rgba(255, 255, 255, 0.66);
  border: 1px solid rgba(37, 99, 235, 0.18);
  color: var(--qt-primary);
  font-size: 16px;
  transition: background 0.2s var(--qt-ease), color 0.2s var(--qt-ease), box-shadow 0.2s var(--qt-ease);
}

.qt-icon-btn:hover {
  background: var(--qt-primary);
  color: #fff;
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.22);
}

.qt-icon-btn-accent {
  color: #fff;
  background: var(--qt-accent);
  border-color: rgba(245, 158, 11, 0.45);
}

.qt-icon-btn-accent:hover {
  background: #d97706;
  color: #fff;
}

.qt-main {
  display: block;
}

.qt-section {
  padding: var(--qt-space-12) 0;
  position: relative;
}

.container-fluid {
  width: 100%;
  padding-right: var(--qt-space-5);
  padding-left: var(--qt-space-5);
}

.qt-section-head {
  max-width: 980px;
  margin: 0 auto var(--qt-space-8);
  text-align: center;
}

.qt-kicker {
  display: inline-block;
  margin: 0 0 var(--qt-space-2);
  padding: var(--qt-space-1) var(--qt-space-3);
  border-radius: var(--qt-radius-pill);
  background: rgba(37, 99, 235, 0.1);
  color: var(--qt-primary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.qt-kicker-accent {
  background: rgba(245, 158, 11, 0.14);
  color: #b45309;
}

.qt-clip-title {
  margin: 0 0 var(--qt-space-3);
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.15;
  font-weight: 900;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--qt-gradient-start), var(--qt-gradient-end), var(--qt-accent));
  background-size: 220% 220%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: qtGradientShift 9s ease-in-out infinite;
}

@supports not ((-webkit-background-clip: text) or (background-clip: text)) {
  .qt-clip-title {
    color: var(--qt-primary);
  }
}

@keyframes qtGradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.qt-section-desc {
  margin: 0;
  color: var(--qt-text-secondary);
  font-size: 15px;
  line-height: 1.7;
}

.qt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: var(--qt-space-2) var(--qt-space-5);
  border: 2px solid transparent;
  border-radius: var(--qt-radius-pill);
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s var(--qt-ease), box-shadow 0.2s var(--qt-ease), background 0.2s var(--qt-ease), color 0.2s var(--qt-ease);
  will-change: transform;
}

.qt-btn-primary {
  background: var(--qt-primary);
  color: #fff;
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.24);
}

.qt-btn-primary:hover {
  background: #1d4ed8;
  box-shadow: 0 14px 30px rgba(37, 99, 235, 0.3);
}

.qt-btn-accent {
  background: var(--qt-accent);
  color: #111827;
  box-shadow: 0 10px 24px rgba(245, 158, 11, 0.28);
}

.qt-btn-accent:hover {
  background: #d97706;
  color: #fff;
}

.qt-btn-outline {
  background: rgba(255, 255, 255, 0.55);
  color: var(--qt-primary);
  border-color: rgba(37, 99, 235, 0.28);
}

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

.qt-btn-white {
  background: rgba(255, 255, 255, 0.86);
  color: var(--qt-primary);
}

.qt-btn-white:hover {
  background: #fff;
}

.qt-magnetic {
  transition: transform 0.2s ease-out, box-shadow 0.2s ease-out, background 0.2s ease-out, color 0.2s ease-out;
  will-change: transform;
}

.qt-proximity {
  transition: transform 0.28s var(--qt-ease), box-shadow 0.28s var(--qt-ease), border-color 0.28s var(--qt-ease);
}

.qt-proximity-active {
  transform: scale(1.01);
  box-shadow: 0 12px 28px var(--qt-shadow);
}

.qt-hero {
  position: relative;
  min-height: 680px;
  overflow: hidden;
  background: linear-gradient(135deg, #dbeafe 0%, #e0f2fe 40%, #fef3c7 100%);
}

.qt-slider,
.qt-slider-track {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.qt-slide-item {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.8s var(--qt-ease), transform 0.8s var(--qt-ease);
  transform: scale(1.02);
}

.qt-slide-active {
  opacity: 1;
  transform: scale(1);
}

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

.qt-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 39, 68, 0.18), rgba(15, 39, 68, 0.52));
}

.qt-hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: var(--qt-space-6);
  align-items: start;
  min-height: 680px;
  padding: var(--qt-space-12) var(--qt-space-5);
}

.qt-hero-card {
  max-width: 860px;
  padding: var(--qt-space-8);
  border-radius: var(--qt-radius-lg);
}

.qt-hero-title {
  margin-bottom: var(--qt-space-4);
}

.qt-hero-desc {
  max-width: 760px;
  margin: 0 0 var(--qt-space-6);
  color: var(--qt-text);
  font-size: 15px;
  line-height: 1.8;
}

.qt-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--qt-space-3);
  margin-bottom: var(--qt-space-6);
}

.qt-hero-meta {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--qt-space-2);
}

.qt-meta-item {
  display: flex;
  align-items: center;
  gap: var(--qt-space-2);
  min-height: 40px;
  padding: var(--qt-space-2) var(--qt-space-3);
  border-radius: var(--qt-radius-sm);
  background: rgba(255, 255, 255, 0.52);
  border: 1px solid rgba(255, 255, 255, 0.5);
  font-size: 13px;
  font-weight: 600;
  color: var(--qt-primary);
}

.qt-hero-search {
  align-self: center;
  padding: var(--qt-space-5);
  border-radius: var(--qt-radius-lg);
}

.qt-hero-search-form {
  display: flex;
  align-items: center;
  gap: var(--qt-space-2);
  padding: var(--qt-space-1);
  background: #fff;
  border: 2px solid #e5e7eb;
  border-radius: var(--qt-radius-pill);
}

.qt-hero-search-form i {
  color: var(--qt-primary);
  padding-left: var(--qt-space-3);
}

.qt-hero-search-input {
  flex: 1 1 auto;
  min-width: 0;
  height: 38px;
  border: 0;
  outline: 0;
  background: transparent;
}

.qt-hero-search-btn {
  height: 38px;
  padding: 0 var(--qt-space-4);
  border: 0;
  border-radius: var(--qt-radius-pill);
  background: var(--qt-primary);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}

.qt-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--qt-space-2);
  margin-top: var(--qt-space-3);
}

.qt-tag-pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: var(--qt-space-1) var(--qt-space-3);
  border-radius: var(--qt-radius-pill);
  background: rgba(37, 99, 235, 0.1);
  color: var(--qt-primary);
  font-size: 12px;
  font-weight: 700;
  transition: background 0.2s var(--qt-ease), color 0.2s var(--qt-ease), transform 0.2s var(--qt-ease);
}

.qt-tag-pill:hover {
  background: var(--qt-primary);
  color: #fff;
  transform: translateY(-1px);
}

.qt-slider-nav {
  position: absolute;
  left: 0;
  right: 0;
  bottom: var(--qt-space-8);
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--qt-space-3);
}

.qt-slider-btn {
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: var(--qt-radius-pill);
  background: rgba(255, 255, 255, 0.24);
  color: #fff;
  backdrop-filter: blur(12px);
  cursor: pointer;
  transition: background 0.2s var(--qt-ease), transform 0.2s var(--qt-ease);
}

.qt-slider-btn:hover {
  background: rgba(255, 255, 255, 0.45);
  transform: scale(1.04);
}

.qt-slider-dots {
  display: flex;
  gap: var(--qt-space-2);
}

.qt-slider-dot {
  width: 10px;
  height: 10px;
  padding: 0;
  border: 0;
  border-radius: var(--qt-radius-pill);
  background: rgba(255, 255, 255, 0.48);
  cursor: pointer;
  transition: width 0.2s var(--qt-ease), background 0.2s var(--qt-ease);
}

.qt-slider-dot-active {
  width: 28px;
  background: var(--qt-accent);
}

.qt-trust-section {
  padding-top: var(--qt-space-8);
  padding-bottom: var(--qt-space-8);
}

.qt-trust-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--qt-space-3);
}

.qt-trust-card {
  padding: var(--qt-space-4);
  border-radius: var(--qt-radius);
  transition: transform 0.28s var(--qt-ease), box-shadow 0.28s var(--qt-ease);
}

.qt-trust-card i {
  font-size: 24px;
  color: var(--qt-primary);
}

.qt-trust-card h3 {
  margin: var(--qt-space-2) 0;
  font-size: 16px;
  font-weight: 800;
}

.qt-trust-card p {
  margin: 0;
  color: var(--qt-text-secondary);
  font-size: 13px;
}

.qt-service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--qt-space-4);
}

.qt-service-card {
  overflow: hidden;
  border-radius: var(--qt-radius-lg);
  transition: transform 0.3s var(--qt-ease), box-shadow 0.3s var(--qt-ease), border-color 0.3s var(--qt-ease);
}

.qt-service-media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.14), rgba(6, 182, 212, 0.14));
}

.qt-service-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s var(--qt-ease);
}

.qt-service-card:hover .qt-service-img {
  transform: scale(1.06);
}

.qt-service-badge {
  position: absolute;
  top: var(--qt-space-3);
  left: var(--qt-space-3);
  padding: var(--qt-space-1) var(--qt-space-3);
  border-radius: var(--qt-radius-pill);
  background: var(--qt-accent);
  color: #111827;
  font-size: 12px;
  font-weight: 800;
}

.qt-service-card h3 {
  margin: var(--qt-space-4) var(--qt-space-4) var(--qt-space-2);
  font-size: 18px;
  font-weight: 800;
  color: var(--qt-primary);
}

.qt-service-card p {
  margin: 0 var(--qt-space-4) var(--qt-space-4);
  color: var(--qt-text-secondary);
  line-height: 1.7;
}

.qt-card-link {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  margin: 0 var(--qt-space-4) var(--qt-space-4);
  color: var(--qt-primary);
  font-weight: 700;
}

.qt-card-link::after {
  content: "→";
  margin-left: var(--qt-space-2);
  transition: transform 0.2s var(--qt-ease);
}

.qt-card-link:hover::after {
  transform: translateX(4px);
}

.qt-timeline-section {
  background: linear-gradient(180deg, #fff 0%, #eef6ff 100%);
}

.qt-timeline-year-sticky {
  position: sticky;
  top: 88px;
  z-index: 2;
  width: 132px;
  margin: 0 auto var(--qt-space-6);
  padding: var(--qt-space-3) var(--qt-space-4);
  border-radius: var(--qt-radius-pill);
  text-align: center;
  font-size: 24px;
  font-weight: 900;
  color: var(--qt-primary);
}

.qt-timeline {
  position: relative;
  max-width: 1120px;
  margin: 0 auto;
  padding: var(--qt-space-6) 0;
}

.qt-timeline-line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: var(--qt-border);
  transform: translateX(-50%);
}

.qt-timeline-item {
  position: relative;
  width: 50%;
  padding: var(--qt-space-4);
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s var(--qt-ease), transform 0.6s var(--qt-ease);
}

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

.qt-timeline-item:nth-child(odd) {
  padding-right: var(--qt-space-12);
  text-align: right;
}

.qt-timeline-item:nth-child(even) {
  margin-left: 50%;
  padding-left: var(--qt-space-12);
  text-align: left;
}

.qt-timeline-node {
  position: absolute;
  top: 34px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--qt-primary);
  border: 3px solid #fff;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.qt-timeline-item:nth-child(odd) .qt-timeline-node {
  right: -8px;
}

.qt-timeline-item:nth-child(even) .qt-timeline-node {
  left: -8px;
}

.qt-timeline-connect {
  position: absolute;
  top: 42px;
  width: 40px;
  border-top: 2px dashed var(--qt-border);
}

.qt-timeline-item:nth-child(odd) .qt-timeline-connect {
  right: 12px;
}

.qt-timeline-item:nth-child(even) .qt-timeline-connect {
  left: 12px;
}

.qt-timeline-card {
  display: inline-block;
  width: 100%;
  max-width: 460px;
  padding: var(--qt-space-4);
  border-radius: var(--qt-radius);
  text-align: left;
}

.qt-timeline-item:nth-child(odd) .qt-timeline-card {
  text-align: right;
}

.qt-timeline-year {
  display: block;
  margin-bottom: var(--qt-space-2);
  font-size: 32px;
  line-height: 1;
  font-weight: 900;
  color: var(--qt-primary);
}

.qt-timeline-card h3 {
  margin: var(--qt-space-2) 0;
  font-size: 18px;
  font-weight: 800;
}

.qt-timeline-card p {
  margin: 0;
  color: var(--qt-text-secondary);
  line-height: 1.7;
}

.qt-timeline-img {
  width: 100%;
  margin-top: var(--qt-space-3);
  border-radius: var(--qt-radius-sm);
  object-fit: cover;
  aspect-ratio: 16 / 9;
}

.qt-stats-section {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(245, 158, 11, 0.08));
}

.qt-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--qt-space-4);
}

.qt-stat {
  padding: var(--qt-space-6) var(--qt-space-4);
  border-radius: var(--qt-radius-lg);
  text-align: center;
}

.qt-stat-number {
  display: block;
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1;
  font-weight: 900;
  color: var(--qt-primary);
}

.qt-stat-label {
  display: block;
  margin-top: var(--qt-space-2);
  font-size: 16px;
  font-weight: 800;
}

.qt-stat-desc {
  display: block;
  margin-top: var(--qt-space-1);
  color: var(--qt-text-secondary);
  font-size: 12px;
}

.qt-physics-shell {
  position: relative;
  height: 460px;
  overflow: hidden;
  border-radius: var(--qt-radius-lg);
  background: linear-gradient(135deg, #dbeafe, #cffafe, #fef3c7);
}

.qt-physics-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  cursor: grab;
  touch-action: none;
}

.qt-physics-fallback {
  position: absolute;
  inset: 0;
  display: none;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--qt-space-3);
  align-content: center;
  justify-items: center;
  padding: var(--qt-space-5);
}

.qt-physics-fallback-visible {
  display: grid;
}

.qt-physics-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.76);
  border: 2px solid rgba(37, 99, 235, 0.22);
  color: var(--qt-primary);
  font-weight: 800;
  box-shadow: 0 8px 20px var(--qt-shadow);
}

.qt-physics-tip {
  position: absolute;
  left: var(--qt-space-4);
  bottom: var(--qt-space-4);
  display: inline-flex;
  align-items: center;
  gap: var(--qt-space-2);
  padding: var(--qt-space-2) var(--qt-space-4);
  border-radius: var(--qt-radius-pill);
  color: var(--qt-primary);
  font-size: 13px;
  font-weight: 700;
}

.qt-blog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--qt-space-4);
}

.qt-blog-card {
  overflow: hidden;
  border-radius: var(--qt-radius-lg);
  transition: transform 0.3s var(--qt-ease), box-shadow 0.3s var(--qt-ease);
}

.qt-blog-media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.qt-blog-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s var(--qt-ease);
}

.qt-blog-card:hover .qt-blog-img {
  transform: scale(1.06);
}

.qt-blog-category {
  position: absolute;
  top: var(--qt-space-3);
  left: var(--qt-space-3);
  padding: var(--qt-space-1) var(--qt-space-3);
  border-radius: var(--qt-radius-pill);
  background: rgba(255, 255, 255, 0.78);
  color: var(--qt-primary);
  font-size: 12px;
  font-weight: 800;
}

.qt-blog-body {
  padding: var(--qt-space-4);
}

.qt-blog-title {
  margin: 0 0 var(--qt-space-2);
  font-size: 17px;
  line-height: 1.4;
  font-weight: 800;
}

.qt-blog-title a {
  color: var(--qt-text);
  transition: color 0.2s var(--qt-ease);
}

.qt-blog-title a:hover {
  color: var(--qt-primary);
}

.qt-blog-desc {
  margin: 0 0 var(--qt-space-3);
  color: var(--qt-text-secondary);
  line-height: 1.7;
}

.qt-blog-meta {
  display: flex;
  justify-content: space-between;
  gap: var(--qt-space-2);
  margin-bottom: var(--qt-space-3);
  color: var(--qt-text-secondary);
  font-size: 12px;
}

.qt-blog-link {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  color: var(--qt-primary);
  font-weight: 800;
}

.qt-blog-footer {
  margin-top: var(--qt-space-8);
  text-align: center;
}

.qt-palette-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--qt-space-3);
}

.qt-palette-swatch {
  position: relative;
  min-height: 160px;
  padding: var(--qt-space-4);
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: var(--qt-radius);
  color: #fff;
  text-align: left;
  cursor: pointer;
  overflow: hidden;
  box-shadow: 0 8px 24px var(--qt-shadow);
  transition: transform 0.28s var(--qt-ease), box-shadow 0.28s var(--qt-ease);
}

.qt-palette-swatch:hover {
  transform: scale(1.05);
  box-shadow: 0 16px 36px var(--qt-shadow);
}

.qt-palette-primary { background: #2563EB; }
.qt-palette-secondary { background: #60A5FA; }
.qt-palette-accent { background: #F59E0B; color: #111827; }
.qt-palette-success { background: #16A34A; }
.qt-palette-warning { background: #EA580C; }
.qt-palette-dark { background: #0F2744; }
.qt-palette-light { background: #F8FAFC; color: #16233A; }
.qt-palette-border { background: #DEE2E6; color: #16233A; }

.qt-palette-name {
  display: block;
  font-size: 18px;
  font-weight: 900;
}

.qt-palette-hex {
  display: block;
  margin-top: var(--qt-space-2);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 14px;
  opacity: 0.92;
}

.qt-palette-use {
  position: absolute;
  left: var(--qt-space-4);
  bottom: var(--qt-space-4);
  font-size: 12px;
  opacity: 0.88;
}

.qt-city-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--qt-space-2);
}

.qt-city-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 64px;
  padding: var(--qt-space-2);
  border-radius: var(--qt-radius-sm);
  transition: transform 0.2s var(--qt-ease), box-shadow 0.2s var(--qt-ease), border-color 0.2s var(--qt-ease);
}

.qt-city-card:hover {
  transform: translateY(-2px);
  border-color: rgba(37, 99, 235, 0.35);
  box-shadow: 0 10px 24px var(--qt-shadow);
}

.qt-city-name {
  margin: 0;
  font-size: 14px;
  font-weight: 800;
  color: var(--qt-primary);
}

.qt-city-code {
  margin-top: var(--qt-space-1);
  font-size: 11px;
  color: var(--qt-text-secondary);
}

.qt-faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--qt-space-3);
}

.qt-faq-item {
  padding: var(--qt-space-4);
  border-radius: var(--qt-radius);
  transition: transform 0.2s var(--qt-ease), box-shadow 0.2s var(--qt-ease);
}

.qt-faq-summary {
  display: flex;
  align-items: center;
  gap: var(--qt-space-2);
  cursor: pointer;
  font-weight: 800;
  list-style: none;
}

.qt-faq-summary::-webkit-details-marker {
  display: none;
}

.qt-faq-summary i {
  color: var(--qt-primary);
}

.qt-faq-content {
  padding: var(--qt-space-3) 0 0;
  color: var(--qt-text-secondary);
  line-height: 1.8;
}

.qt-cta-section {
  padding-bottom: var(--qt-space-12);
}

.qt-cta-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--qt-space-6);
  padding: var(--qt-space-8);
  border-radius: var(--qt-radius-lg);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(245, 158, 11, 0.12));
}

.qt-cta-left {
  flex: 1 1 auto;
}

.qt-cta-title {
  margin-bottom: var(--qt-space-2);
}

.qt-cta-desc {
  margin: 0;
  color: var(--qt-text-secondary);
  line-height: 1.8;
}

.qt-cta-right {
  display: flex;
  gap: var(--qt-space-3);
}

.qt-site-footer {
  position: relative;
  color: rgba(255, 255, 255, 0.88);
  background: var(--qt-bg-dark);
  overflow: hidden;
}

.qt-footer-wave {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: radial-gradient(circle at 20% 0%, rgba(96, 165, 250, 0.25), transparent 38%), radial-gradient(circle at 80% 0%, rgba(245, 158, 11, 0.18), transparent 42%);
  pointer-events: none;
}

.qt-footer-inner {
  position: relative;
  z-index: 1;
  padding: var(--qt-space-12) var(--qt-space-5) var(--qt-space-8);
}

.qt-footer-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.85fr 1fr 0.85fr;
  gap: var(--qt-space-6);
}

.qt-footer-logo {
  width: 52px;
  height: 52px;
  object-fit: contain;
  border-radius: var(--qt-radius-sm);
  background: rgba(255, 255, 255, 0.08);
  padding: var(--qt-space-1);
}

.qt-footer-desc,
.qt-footer-keywords {
  margin: var(--qt-space-3) 0 0;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.8;
}

.qt-footer-title,
.qt-footer-mini-title {
  margin: 0 0 var(--qt-space-4);
  font-size: 16px;
  font-weight: 900;
  color: #fff;
}

.qt-footer-list,
.qt-footer-info {
  margin: 0;
  padding: 0;
  list-style: none;
}

.qt-footer-list li {
  margin-bottom: var(--qt-space-2);
}

.qt-footer-list a {
  color: rgba(255, 255, 255, 0.78);
  transition: color 0.2s var(--qt-ease), transform 0.2s var(--qt-ease);
}

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

.qt-footer-info li {
  display: flex;
  gap: var(--qt-space-2);
  margin-bottom: var(--qt-space-2);
  color: rgba(255, 255, 255, 0.82);
}

.qt-footer-info i {
  color: var(--qt-secondary);
}

.qt-qr-frame {
  padding: var(--qt-space-3);
  border-radius: var(--qt-radius);
  background: rgba(255, 255, 255, 0.08);
}

.qt-qr-img {
  width: 100%;
  max-width: 160px;
  margin: 0 auto;
  border-radius: var(--qt-radius-sm);
  background: #fff;
}

.qt-qr-tip {
  margin: var(--qt-space-3) 0 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 12px;
  line-height: 1.7;
}

.qt-footer-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--qt-space-4);
  margin-top: var(--qt-space-8);
  padding-top: var(--qt-space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.qt-footer-link-group a {
  display: inline-block;
  margin: 0 var(--qt-space-2) var(--qt-space-2) 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 12px;
}

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

.qt-footer-bottom {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--qt-space-3);
  align-items: center;
  padding: var(--qt-space-4) var(--qt-space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(0, 0, 0, 0.12);
}

.qt-copyright,
.qt-icp,
.qt-footer-legal {
  margin: 0;
  color: rgba(255, 255, 255, 0.66);
  font-size: 12px;
}

.qt-page-hero {
  padding: var(--qt-space-12) 0 var(--qt-space-8);
  background: linear-gradient(135deg, #dbeafe 0%, #e0f2fe 45%, #fef3c7 100%);
}

.qt-breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: var(--qt-space-2);
  margin-bottom: var(--qt-space-4);
  padding: var(--qt-space-2) var(--qt-space-4);
  border-radius: var(--qt-radius-pill);
  color: var(--qt-primary);
  font-size: 12px;
  font-weight: 700;
}

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

.qt-breadcrumb i {
  opacity: 0.65;
}

.qt-page-desc {
  max-width: 900px;
  margin: 0;
  color: var(--qt-text-secondary);
  line-height: 1.8;
}

.qt-news-layout,
.qt-article-layout,
.qt-contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: var(--qt-space-5);
}

.qt-news-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--qt-space-3);
  padding: var(--qt-space-3) var(--qt-space-4);
  margin-bottom: var(--qt-space-4);
  border-radius: var(--qt-radius);
}

.qt-news-count {
  display: inline-flex;
  align-items: center;
  gap: var(--qt-space-2);
  color: var(--qt-primary);
  font-weight: 800;
}

.qt-news-filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--qt-space-1);
}

.qt-filter-pill {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: var(--qt-space-1) var(--qt-space-3);
  border-radius: var(--qt-radius-pill);
  background: rgba(37, 99, 235, 0.08);
  color: var(--qt-primary);
  font-size: 12px;
  font-weight: 800;
}

.qt-filter-active,
.qt-filter-pill:hover {
  background: var(--qt-primary);
  color: #fff;
}

.qt-news-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--qt-space-4);
}

.qt-news-card {
  overflow: hidden;
  border-radius: var(--qt-radius-lg);
  transition: transform 0.3s var(--qt-ease), box-shadow 0.3s var(--qt-ease);
}

.qt-news-media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.qt-news-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s var(--qt-ease);
}

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

.qt-news-code {
  position: absolute;
  top: var(--qt-space-3);
  right: var(--qt-space-3);
  padding: var(--qt-space-1) var(--qt-space-3);
  border-radius: var(--qt-radius-pill);
  background: rgba(255, 255, 255, 0.8);
  color: var(--qt-primary);
  font-size: 12px;
  font-weight: 800;
}

.qt-news-body {
  padding: var(--qt-space-4);
}

.qt-news-title {
  margin: 0 0 var(--qt-space-2);
  font-size: 18px;
  line-height: 1.4;
}

.qt-news-title a:hover {
  color: var(--qt-primary);
}

.qt-news-desc {
  margin: 0 0 var(--qt-space-3);
  color: var(--qt-text-secondary);
  line-height: 1.7;
}

.qt-news-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--qt-space-2);
  margin-bottom: var(--qt-space-3);
}

.qt-news-meta {
  display: flex;
  justify-content: space-between;
  gap: var(--qt-space-2);
  margin-bottom: var(--qt-space-3);
  color: var(--qt-text-secondary);
  font-size: 12px;
}

.qt-pagination-wrap {
  margin-top: var(--qt-space-6);
}

.qt-sidebar-card {
  padding: var(--qt-space-4);
  border-radius: var(--qt-radius);
  margin-bottom: var(--qt-space-4);
}

.qt-sidebar-title {
  margin: 0 0 var(--qt-space-3);
  font-size: 16px;
  font-weight: 900;
  color: var(--qt-primary);
}

.qt-recommend-list,
.qt-related-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.qt-recommend-item {
  margin-bottom: var(--qt-space-3);
}

.qt-recommend-item img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--qt-radius-sm);
}

.qt-recommend-link {
  display: block;
  margin-top: var(--qt-space-2);
  font-weight: 800;
  color: var(--qt-text);
}

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

.qt-sidebar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--qt-space-2);
}

.qt-sidebar-contact {
  text-align: center;
}

.qt-sidebar-phone {
  margin: var(--qt-space-2) 0;
  font-size: 20px;
  font-weight: 900;
  color: var(--qt-primary);
}

.qt-sidebar-weixin {
  margin: 0 0 var(--qt-space-3);
  color: var(--qt-text-secondary);
}

.qt-sidebar-city-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--qt-space-2);
}

.qt-sidebar-city-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  border-radius: var(--qt-radius-sm);
  background: rgba(37, 99, 235, 0.08);
  color: var(--qt-primary);
  font-weight: 800;
}

.qt-news-cta-card,
.qt-cta-card {
  text-align: left;
}

.qt-article-main {
  padding: var(--qt-space-8);
  border-radius: var(--qt-radius-lg);
}

.qt-article-title {
  margin: 0 0 var(--qt-space-4);
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.2;
  font-weight: 900;
}

.qt-article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--qt-space-3);
  padding-bottom: var(--qt-space-4);
  border-bottom: 1px solid var(--qt-border);
  color: var(--qt-text-secondary);
  font-size: 13px;
}

.qt-article-meta span {
  display: inline-flex;
  align-items: center;
  gap: var(--qt-space-1);
}

.qt-article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--qt-space-2);
  margin: var(--qt-space-4) 0;
}

.qt-article-content {
  color: var(--qt-text);
  line-height: 1.9;
}

.qt-article-content h2,
.qt-article-content h3 {
  margin: var(--qt-space-6) 0 var(--qt-space-3);
  color: var(--qt-primary);
}

.qt-article-content p {
  margin: 0 0 var(--qt-space-4);
}

.qt-article-content img {
  margin: var(--qt-space-4) 0;
  border-radius: var(--qt-radius);
}

.qt-article-footer {
  margin-top: var(--qt-space-6);
  padding-top: var(--qt-space-4);
  border-top: 1px solid var(--qt-border);
}

.qt-article-notice {
  margin: 0 0 var(--qt-space-4);
  color: var(--qt-text-secondary);
}

.qt-article-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--qt-space-3);
}

.qt-related-item {
  margin-bottom: var(--qt-space-3);
}

.qt-related-item a {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: var(--qt-space-3);
  align-items: center;
}

.qt-related-img {
  width: 84px;
  height: 60px;
  object-fit: cover;
  border-radius: var(--qt-radius-sm);
}

.qt-related-text {
  display: flex;
  flex-direction: column;
  gap: var(--qt-space-1);
}

.qt-related-title {
  font-weight: 800;
  color: var(--qt-text);
}

.qt-related-time {
  color: var(--qt-text-secondary);
  font-size: 12px;
}

.qt-sidebar-qr {
  width: 100%;
  max-width: 160px;
  margin: var(--qt-space-3) auto 0;
  border-radius: var(--qt-radius-sm);
}

.qt-mini-timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--qt-space-3);
}

.qt-mini-item {
  padding: var(--qt-space-4);
  border-radius: var(--qt-radius);
}

.qt-mini-node {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  margin-bottom: var(--qt-space-3);
  border-radius: 50%;
  background: var(--qt-primary);
  color: #fff;
  font-weight: 900;
}

.qt-about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--qt-space-5);
  align-items: center;
}

.qt-about-text {
  padding: var(--qt-space-8);
  border-radius: var(--qt-radius-lg);
}

.qt-about-text h2 {
  margin: 0 0 var(--qt-space-3);
  font-size: 28px;
  font-weight: 900;
}

.qt-about-text p {
  margin: 0 0 var(--qt-space-3);
  color: var(--qt-text-secondary);
  line-height: 1.8;
}

.qt-about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--qt-space-2);
}

.qt-about-media {
  position: relative;
}

.qt-about-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--qt-radius-lg);
  box-shadow: 0 18px 40px var(--qt-shadow);
}

.qt-about-stat {
  position: absolute;
  right: var(--qt-space-4);
  bottom: var(--qt-space-4);
  padding: var(--qt-space-4);
  border-radius: var(--qt-radius);
  text-align: center;
}

.qt-about-stat-number {
  display: block;
  font-size: 34px;
  font-weight: 900;
  color: var(--qt-primary);
}

.qt-about-stat-label {
  display: block;
  color: var(--qt-text-secondary);
  font-size: 12px;
}

.qt-value-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--qt-space-3);
}

.qt-value-card {
  padding: var(--qt-space-6) var(--qt-space-4);
  border-radius: var(--qt-radius-lg);
  transition: transform 0.28s var(--qt-ease), box-shadow 0.28s var(--qt-ease);
}

.qt-value-card i {
  font-size: 28px;
  color: var(--qt-primary);
}

.qt-value-card h3 {
  margin: var(--qt-space-3) 0;
  font-size: 17px;
  font-weight: 900;
}

.qt-value-card p {
  margin: 0;
  color: var(--qt-text-secondary);
  line-height: 1.7;
}

.qt-contact-form-card {
  padding: var(--qt-space-8);
  border-radius: var(--qt-radius-lg);
}

.qt-contact-title {
  margin: 0 0 var(--qt-space-2);
  font-size: 28px;
  font-weight: 900;
  color: var(--qt-primary);
}

.qt-contact-subtitle {
  margin: 0 0 var(--qt-space-6);
  color: var(--qt-text-secondary);
}

.qt-contact-form {
  display: grid;
  gap: var(--qt-space-4);
}

.qt-form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--qt-space-4);
}

.qt-form-field {
  display: flex;
  flex-direction: column;
  gap: var(--qt-space-2);
}

.qt-form-full {
  grid-column: 1 / -1;
}

.qt-form-label {
  font-size: 13px;
  font-weight: 800;
  color: var(--qt-text);
}

.qt-form-input,
.qt-form-select,
.qt-form-textarea {
  width: 100%;
  min-height: 40px;
  padding: var(--qt-space-2) var(--qt-space-3);
  border: 2px solid #e5e7eb;
  border-radius: var(--qt-radius-sm);
  background: rgba(255, 255, 255, 0.78);
  color: var(--qt-text);
  outline: 0;
  transition: border-color 0.2s var(--qt-ease), box-shadow 0.2s var(--qt-ease);
}

.qt-form-textarea {
  min-height: 140px;
  resize: vertical;
}

.qt-form-input:focus,
.qt-form-select:focus,
.qt-form-textarea:focus {
  border-color: var(--qt-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.14);
}

.qt-input-error {
  border-color: #dc2626 !important;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.12) !important;
}

.qt-field-error {
  min-height: 18px;
  color: #dc2626;
  font-size: 12px;
}

.qt-form-actions {
  display: flex;
  gap: var(--qt-space-3);
}

.qt-form-notice {
  margin: 0;
  color: var(--qt-text-secondary);
  font-size: 12px;
}

.qt-contact-info {
  display: grid;
  gap: var(--qt-space-4);
}

.qt-info-card {
  padding: var(--qt-space-5);
  border-radius: var(--qt-radius);
}

.qt-info-card h3 {
  margin: 0 0 var(--qt-space-3);
  font-size: 17px;
  font-weight: 900;
  color: var(--qt-primary);
}

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

.qt-info-list li {
  display: flex;
  gap: var(--qt-space-2);
  margin-bottom: var(--qt-space-2);
  color: var(--qt-text-secondary);
}

.qt-info-list i {
  color: var(--qt-primary);
}

.qt-contact-qr,
.qt-map-img {
  width: 100%;
  border-radius: var(--qt-radius-sm);
  object-fit: cover;
}

.qt-info-qr p {
  margin: var(--qt-space-3) 0 0;
  text-align: center;
  color: var(--qt-text-secondary);
}

.qt-map-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--qt-space-2);
  margin-top: var(--qt-space-3);
}

.qt-process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--qt-space-3);
}

.qt-process-card {
  padding: var(--qt-space-5);
  border-radius: var(--qt-radius);
  transition: transform 0.28s var(--qt-ease), box-shadow 0.28s var(--qt-ease);
}

.qt-process-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: var(--qt-space-3);
  border-radius: var(--qt-radius-pill);
  background: var(--qt-primary);
  color: #fff;
  font-weight: 900;
}

.qt-process-card h3 {
  margin: 0 0 var(--qt-space-2);
  font-size: 16px;
  font-weight: 900;
}

.qt-process-card p {
  margin: 0;
  color: var(--qt-text-secondary);
  line-height: 1.7;
}

.qt-toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 10000;
  transform: translate(-50%, 20px);
  max-width: calc(100vw - 32px);
  padding: var(--qt-space-3) var(--qt-space-5);
  border-radius: var(--qt-radius-pill);
  background: rgba(15, 39, 68, 0.92);
  color: #fff;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s var(--qt-ease), transform 0.25s var(--qt-ease);
}

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

.qt-fire-canvas {
  position: fixed;
  inset: 0;
  z-index: 9998;
  display: none;
  pointer-events: none;
}

.qt-fire-visible {
  display: block;
}

.qt-fire-toggle,
.qt-back-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 9999;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--qt-space-1);
  width: 48px;
  height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: var(--qt-radius-pill);
  color: var(--qt-primary);
  cursor: pointer;
  transition: transform 0.2s var(--qt-ease), background 0.2s var(--qt-ease), color 0.2s var(--qt-ease);
}

.qt-fire-toggle {
  right: 20px;
  bottom: 76px;
  width: auto;
  padding: 0 var(--qt-space-3);
}

.qt-fire-toggle:hover,
.qt-back-top:hover {
  transform: translateY(-2px) scale(1.04);
  background: var(--qt-primary);
  color: #fff;
}

.qt-fire-active {
  color: #fff;
  background: var(--qt-accent);
  border-color: rgba(245, 158, 11, 0.5);
}

.qt-fire-toggle-text {
  font-size: 12px;
  font-weight: 800;
}

.qt-back-top {
  opacity: 0;
  pointer-events: none;
}

.qt-back-top-visible {
  opacity: 1;
  pointer-events: auto;
}

@media (max-width: 1199px) {
  .qt-hero-content {
    grid-template-columns: 1fr;
  }
  .qt-search-dominant {
    max-width: 42%;
    flex-basis: 42%;
  }
  .qt-service-grid,
  .qt-blog-grid,
  .qt-palette-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .qt-stats-grid,
  .qt-value-grid,
  .qt-process-grid,
  .qt-mini-timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .qt-trust-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .qt-footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 991px) {
  .qt-header-inner {
    flex-wrap: wrap;
  }
  .qt-brand {
    order: 1;
  }
  .qt-icon-actions {
    order: 2;
    margin-left: auto;
  }
  .qt-nav-toggle {
    order: 3;
    display: inline-flex;
    margin-left: var(--qt-space-2);
  }
  .qt-search-dominant {
    order: 4;
    width: 100%;
    max-width: 100%;
    flex-basis: 100%;
    margin-top: var(--qt-space-2);
  }
  .qt-main-nav {
    order: 5;
    width: 100%;
    display: none;
  }
  .qt-nav-open {
    display: block;
  }
  .qt-nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--qt-space-1);
    padding: var(--qt-space-2);
    border-radius: var(--qt-radius);
    background: rgba(255, 255, 255, 0.86);
  }
  .qt-nav-link {
    width: 100%;
    min-height: 44px;
  }
  .qt-news-layout,
  .qt-article-layout,
  .qt-contact-layout,
  .qt-about-grid {
    grid-template-columns: 1fr;
  }
  .qt-city-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .qt-faq-grid {
    grid-template-columns: 1fr;
  }
  .qt-cta-card {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 767px) {
  .qt-section {
    padding: var(--qt-space-10) 0;
  }
  .qt-hero {
    min-height: 560px;
  }
  .qt-hero-content {
    padding: var(--qt-space-10) var(--qt-space-4);
    min-height: 560px;
  }
  .qt-hero-card,
  .qt-hero-search {
    padding: var(--qt-space-4);
  }
  .qt-hero-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .qt-service-grid,
  .qt-blog-grid,
  .qt-news-grid,
  .qt-palette-grid,
  .qt-stats-grid,
  .qt-value-grid,
  .qt-process-grid,
  .qt-mini-timeline,
  .qt-trust-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--qt-space-2);
  }
  .qt-city-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .qt-timeline-line {
    left: 20px;
    transform: none;
  }
  .qt-timeline-item,
  .qt-timeline-item:nth-child(odd),
  .qt-timeline-item:nth-child(even) {
    width: 100%;
    margin-left: 0;
    padding: var(--qt-space-3) 0 var(--qt-space-3) var(--qt-space-10);
    text-align: left;
  }
  .qt-timeline-item:nth-child(odd) .qt-timeline-card,
  .qt-timeline-item:nth-child(even) .qt-timeline-card {
    text-align: left;
  }
  .qt-timeline-item:nth-child(odd) .qt-timeline-node,
  .qt-timeline-item:nth-child(even) .qt-timeline-node {
    left: 12px;
    right: auto;
  }
  .qt-timeline-connect {
    display: none;
  }
  .qt-timeline-year-sticky {
    top: 80px;
  }
  .qt-physics-shell {
    height: 420px;
  }
  .qt-physics-fallback {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .qt-footer-grid,
  .qt-footer-bottom,
  .qt-footer-links {
    grid-template-columns: 1fr;
  }
  .qt-form-row {
    grid-template-columns: 1fr;
  }
  .qt-related-item a {
    grid-template-columns: 68px 1fr;
  }
  .qt-related-img {
    width: 68px;
    height: 48px;
  }
  .qt-article-main,
  .qt-contact-form-card,
  .qt-about-text {
    padding: var(--qt-space-5);
  }
}

@media (max-width: 575px) {
  .container-fluid {
    padding-right: var(--qt-space-3);
    padding-left: var(--qt-space-3);
  }
  .qt-hero-title {
    font-size: 28px;
  }
  .qt-brand-sub {
    display: none;
  }
  .qt-search-submit {
    padding: 0 var(--qt-space-3);
  }
  .qt-slider-nav {
    bottom: var(--qt-space-4);
  }
  .qt-hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .qt-btn {
    width: 100%;
  }
  .qt-form-actions {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .qt-clip-title {
    animation: none;
  }
  .qt-timeline-item {
    opacity: 1;
    transform: none;
  }
  .qt-fire-canvas,
  .qt-fire-toggle {
    display: none !important;
  }
}