@import url('https://fonts.font.im/css2?family=Noto+Serif+SC:wght@400;700&display=swap');

:root {
  --primary: #004D99;
  --secondary: #0077CC;
  --accent: #00CC99;
  --gold: #D4A84B;
  --gold-light: #E8C474;
  --cta: #D4380D;
  --cta-hover: #B8300A;
  --gradient: linear-gradient(135deg, #004D99, #0077CC);
  --gradient-dark: linear-gradient(135deg, #003366, #004D99);
  --gradient-gold: linear-gradient(90deg, #D4A84B, #E8C474, #D4A84B);
  --bg-body: #F5F7FA;
  --bg-card: #FFFFFF;
  --bg-section: #E3EDF7;
  --bg-dark: #003366;
  --text-primary: #1A1A2E;
  --text-secondary: #2C3E50;
  --text-body: #4A5568;
  --text-muted: #6B7B8D;
  --text-light: #FFFFFF;
  --border-color: #D5E0EB;
  --border-focus: #004D99;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 16px rgba(0,77,153,0.10);
  --shadow-lg: 0 8px 28px rgba(0,77,153,0.14);
  --shadow-hover: 0 12px 32px rgba(0,77,153,0.18);
  --shadow-hover-lg: 0 18px 40px rgba(0,77,153,0.25);
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --space-2xs: 4px;
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 32px;
  --space-xl: 48px;
  --space-2xl: 64px;
  --space-3xl: 80px;
  --font-xs: 12px;
  --font-sm: 14px;
  --font-base: 16px;
  --font-md: 18px;
  --font-lg: 22px;
  --font-xl: 26px;
  --font-2xl: 32px;
  --font-3xl: 42px;
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 1000;
  --z-loader: 9998;
  --z-progress: 9999;
}

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

html {
  scroll-behavior: smooth;
  font-size: var(--font-base);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Noto Serif SC', 'SimSun', 'STSong', serif;
  color: var(--text-primary);
  background-color: var(--bg-body);
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

::selection {
  background: transparent;
}

h1 { font-size: var(--font-3xl); font-weight: 700; color: var(--text-primary); line-height: 1.2; }
h2 { font-size: var(--font-2xl); font-weight: 700; color: var(--text-primary); line-height: 1.25; }
h3 { font-size: var(--font-xl); font-weight: 700; color: var(--text-primary); line-height: 1.3; }
h4 { font-size: var(--font-lg); font-weight: 600; color: var(--text-primary); line-height: 1.35; }
h5 { font-size: var(--font-md); font-weight: 600; color: var(--text-primary); line-height: 1.4; }
h6 { font-size: var(--font-base); font-weight: 600; color: var(--text-primary); line-height: 1.45; }

p { margin-bottom: var(--space-sm); color: var(--text-body); line-height: 1.8; }
a { text-decoration: none; color: inherit; transition: color var(--transition-fast); }
ul, ol { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea, select { font-family: inherit; font-size: inherit; outline: none; border: none; background: none; }

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

.section {
  padding: var(--space-3xl) 0;
}

.section-alt {
  padding: var(--space-3xl) 0;
  background-color: var(--bg-section);
}

.section-padding {
  padding: var(--space-3xl) 0;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.hidden { display: none !important; }
.visible { visibility: visible !important; }
.invisible { visibility: hidden !important; }

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary);
  color: white;
  padding: 8px 16px;
  z-index: calc(var(--z-fixed) + 1);
  transition: top var(--transition-fast);
  border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus {
  top: 0;
}

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  height: 80px;
  background-color: #FFFFFF;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  transform: translateY(-100%);
  animation: navSlideIn 0.6s ease forwards;
}

@keyframes navSlideIn {
  to { transform: translateY(0); }
}

.nav-top-line {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg,
    var(--primary) 0%, var(--primary) 45%,
    var(--gold) 50%, var(--primary) 55%,
    var(--primary) 100%);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-link img {
  height: 62px;
  width: auto;
  transition: all var(--transition-normal);
}

.company-name {
    font-size: 17.5px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.8px;
    white-space: nowrap;
    display: inline-block;
}

@media (max-width: 768px) {
    .company-name { display: none; }
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.lang-switcher {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-left: 20px;
    border-left: 1px solid var(--border-color);
    margin-left: 15px;
}
.lang-btn {
    font-size: 13px;
    color: var(--text-body);
    text-decoration: none;
    padding: 4px 12px;
    border-radius: 20px;
    transition: all 0.2s ease;
    border: 1px solid var(--border-color);
}
.lang-btn:hover,
.lang-btn.active {
    background: rgba(0, 77, 153, 0.1);
    color: var(--primary);
    border-color: var(--primary);
}
@media (max-width: 768px) {
    .lang-switcher {
        margin-left: 0;
        padding-left: 0;
        border-left: none;
        border-top: 1px solid var(--border-color);
        padding-top: 12px;
        justify-content: center;
        margin-top: 12px;
    }
}

.nav-link {
  color: var(--text-body);
  font-size: 15px;
  font-weight: 500;
  padding: 8px 0;
  text-decoration: none;
  position: relative;
  transition: color 0.3s ease;
  display: inline-block;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--gold);
  transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  transform: translateX(-50%);
  border-radius: 1px;
}

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

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

.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  padding: 10px;
  background: none;
  border: none;
  z-index: calc(var(--z-fixed) + 1);
}

.toggle-bar {
  display: block;
  width: 28px;
  height: 3px;
  background-color: var(--primary);
  transition: all var(--transition-normal);
  border-radius: 2px;
  transform-origin: center;
}

.nav-toggle.active .toggle-bar:nth-child(1) {
  transform: rotate(45deg) translate(7px, 7px);
}

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

.nav-toggle.active .toggle-bar:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.98);
  z-index: calc(var(--z-fixed) - 1);
  padding: var(--space-xl) var(--space-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateX(100%);
  transition: all var(--transition-normal);
  overflow-y: auto;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

.mobile-menu a {
  display: block;
  color: var(--text-primary);
  font-size: var(--font-lg);
  font-weight: 600;
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-fast);
  position: relative;
  padding-left: var(--space-md);
}

.mobile-menu a:hover,
.mobile-menu a.active {
  color: var(--primary);
  padding-left: var(--space-lg);
}

.mobile-menu a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%) scaleX(0);
  width: 4px;
  height: 60%;
  background-color: var(--gold);
  border-radius: 2px;
  transition: transform var(--transition-normal);
  transform-origin: left;
}

.mobile-menu a:hover::before,
.mobile-menu a.active::before {
  transform: translateY(-50%) scaleX(1);
}

.navbar.scrolled-stage1 {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(0,77,153,0.10);
}

.navbar.scrolled-stage2 {
  background: #fff;
  box-shadow: 0 6px 28px rgba(0,77,153,0.14);
}

#page-loader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: var(--z-progress);
  background: rgba(0,51,102,0.1);
}

.loader-bar {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--primary), var(--gold), var(--accent));
  transition: width 0.1s linear;
  border-radius: 0 2px 2px 0;
}

#loader-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: #F5F7FA;
  z-index: var(--z-loader);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

#loader-overlay.hidden {
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none !important;
}

.loader-spinner {
  display: flex;
  align-items: center;
  justify-content: center;
}

.loader-spinner i {
  font-size: 52px;
  color: var(--primary);
  animation: dropletBounce 0.85s ease-in-out infinite;
}

.loader-text {
  color: var(--text-body);
  font-size: var(--font-md);
  margin-top: var(--space-xl);
  letter-spacing: 4px;
  animation: textPulse 1.5s ease-in-out infinite;
}

#page-loader,
#loader-overlay {
  display: none !important;
  visibility: hidden !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

.loader-content,
.loader-spinner,
.loader-icon,
.loader-bar,
.loader-text {
  display: none !important;
}

.banner-section {
  margin-top: 80px;
  overflow: hidden;
  position: relative;
}

.bannerSwiper {
  width: 100%;
  height: 450px;
  position: relative;
}

.swiper-slide {
  position: relative;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  will-change: transform;
  display: flex;
  align-items: center;
}

.banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, rgba(0,51,102,0.88) 0%, rgba(0,77,153,0.5) 50%, rgba(0,119,204,0.2) 100%);
  z-index: 1;
}

.particle-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

.banner-content {
  position: relative;
  z-index: 3;
  max-width: 650px;
  padding-left: 100px;
  padding-right: 60px;
  color: var(--text-light);
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.banner-tag {
  display: none !important;
  height: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
  visibility: hidden !important;
}

.banner-title {
  font-size: 48px;
  font-weight: 700;
  color: var(--text-light);
  line-height: 1.25;
  margin-top: 0;
  margin-bottom: 0;
  text-shadow: 0 2px 12px rgba(0,0,0,0.3);
  animation: fadeInLeftBanner 0.8s ease 0.2s both;
}

.banner-desc {
  font-size: 18px;
  color: rgba(255,255,255,0.88);
  line-height: 1.8;
  margin-bottom: 24px;
  margin-top: 40px;
  animation: fadeInLeftBanner 0.8s ease 0.4s both;
}

.banner-actions {
  margin-top: auto;

  animation: fadeInLeftBanner 0.8s ease 0.6s both;
}

.swiper-button-prev,
.swiper-button-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  background-color: rgba(255,255,255,0.15);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  cursor: pointer;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  color: white;
  font-size: 20px;
}

.banner-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 20;
}
.banner-arrow.prev { left: 24px; }
.banner-arrow.next { right: 24px; }

.swiper-button-prev:hover,
.swiper-button-next:hover {
  background-color: var(--gold);
  border-color: var(--gold);
  color: var(--bg-dark);
  transform: translateY(-50%) scale(1.08);
}

.swiper-button-prev { left: 24px; }
.swiper-button-next { right: 24px; }

.swiper-button-prev::after,
.swiper-button-next::after {
  font-size: 18px;
  font-weight: bold;
}

.bannerSwiper .swiper-pagination-bullet {
  width: 10px !important;
  height: 10px !important;
  background-color: rgba(255,255,255,0.45) !important;
  opacity: 1 !important;
  transition: all var(--transition-normal) !important;
  border-radius: 5px !important;
}

.bannerSwiper .swiper-pagination-bullet-active {
  background-color: var(--gold) !important;
  width: 28px !important;
  border-radius: 5px !important;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-md);
  position: relative;
  padding-bottom: 24px;
}

.section-title h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 3px;
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  border-radius: 2px;
}

.section-subtitle {
  text-align: center;
  font-size: 16px;
  color: var(--text-muted);
  max-width: 600px;
  margin: 12px auto 36px;
  line-height: 1.7;
}

.card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  border: 1px solid rgba(212,168,75,0.15);
  box-shadow: var(--shadow-md);
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  cursor: pointer;
  position: relative;
  will-change: transform, box-shadow;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-hover);
  border-color: var(--gold);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 60px;
  height: 3px;
  background: var(--gradient-gold);
  border-radius: 0 0 2px 2px;
  transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.card:hover::before {
  transform: translateX(-50%) scaleX(1);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 36px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.3s ease;
  letter-spacing: 0.5px;
  position: relative;
  overflow: hidden;
  border: 2px solid transparent;
  text-decoration: none;
}

.btn-primary {
  background: var(--cta);
  color: var(--text-light);
  border-color: var(--cta);
}

.btn-primary:hover {
  background: var(--cta-hover);
  border-color: var(--cta-hover);
  transform: translateY(-2px) scale(1.02);
  box-shadow: var(--shadow-hover-lg);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: var(--gradient-gold);
  background-size: 200% 100%;
  border-radius: inherit;
  z-index: -1;
  opacity: 0;
  transition: opacity 0.3s ease;
  animation: borderFlow 3s linear infinite;
}

.btn-primary:hover::before {
  opacity: 1;
}

.btn-secondary {
  background: transparent;
  color: var(--text-light);
  border-color: rgba(255,255,255,0.6);
}

.btn-secondary:hover {
  background: var(--text-light);
  color: var(--primary);
  border-color: var(--text-light);
  transform: translateY(-2px);
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 36px;
  background: var(--cta);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
  letter-spacing: 0.5px;
  text-decoration: none;
}

.btn-cta:hover {
  background: var(--cta-hover);
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 24px rgba(212,56,13,0.35);
}

.btn-cta::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: var(--gradient-gold);
  background-size: 200% 100%;
  border-radius: inherit;
  z-index: -1;
  opacity: 0;
  transition: opacity 0.3s ease;
  animation: borderFlow 3s linear infinite;
}

.btn-cta:hover::before {
  opacity: 1;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.advantage-card {
  background: var(--bg-card);
  padding: var(--space-xl) var(--space-lg);
  border-radius: var(--radius-lg);
  text-align: center;
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.advantage-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient);
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.advantage-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.advantage-card:hover::after {
  transform: scaleX(1);
}

.advantage-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0,77,153,0.08), rgba(0,204,153,0.06));
  border-radius: 50%;
  font-size: 2rem;
  color: var(--primary);
  transition: all var(--transition-normal);
}

.advantage-card:hover .advantage-icon {
  background: var(--gradient);
  color: white;
  transform: scale(1.1) rotate(5deg);
}

.stat-number {
  font-size: 48px;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 0; /* 第9轮Fix：去掉margin-bottom，防止与单位之间产生间距 */
  font-family: 'Noto Serif SC', serif;
  white-space: nowrap; /* 禁止数字内部换行 */
}

.stat-unit {
  font-size: var(--font-base);
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap; /* 第9轮Fix：禁止单位文字换行 */
}

.advantage-data {
    margin-bottom: var(--space-sm);
    min-height: 60px;
    display: flex;
    flex-direction: row; /* 第9轮Fix：改为水平排列，确保数字和单位同行 */
    flex-wrap: nowrap; /* 禁止换行 */
    align-items: baseline; /* 基线对齐 */
    justify-content: center;
    gap: 4px; /* 数字和单位之间的间距 */
}

/* 核心优势卡片 - 文本型数据项保持一致的对齐方式 */
.advantage-card[data-no-stat] .advantage-data,
.advantage-card:has(.stat-text) .advantage-data {
  justify-content: center;
}

.stat-text {
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 2px;
}

.advantage-title {
    font-size: var(--font-lg);
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
    font-weight: 600;
    text-align: center;
    min-height: 28px;
    line-height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.advantage-desc {
    font-size: var(--font-sm);
    color: var(--text-body);
    line-height: 1.65;
    text-align: center;
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px; /* 第8轮Fix2：进一步缩小间距至12px（原20px→12px），更紧凑 */
}

.product-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: visible;
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
  position: relative;
}

.product-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-8px);
  border-color: var(--primary);
}

/* 产品图片容器 - 优化为3:2比例降低高度 */
.product-image {
    width: 100%;
    aspect-ratio: 3 / 2; /* 优化：从4/3(75%)改为3/2(67%)，显著降低图片区域高度 */
    overflow: hidden;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    position: relative;
    background-color: #f5f5f5;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* 关键：保证填充且不变形 */
    transition: transform 0.3s ease;
}

.product-image:hover img {
    transform: scale(1.05); /* hover放大效果 */
}

/* 产品详情页主图也用横图比例 */
.product-gallery-main {
    width: 100%;
    height: 480px;
}
.product-gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.product-thumb-item {
    width: 120px;
    height: 80px;
}
.product-thumb-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-info {
  padding: 12px 5px; /* 第9轮Fix：上下12px，左右仅5px，放大文字区域宽度 */
  overflow: visible;
}

.product-info h3 {
  font-size: var(--font-md);
  color: var(--text-primary);
  margin-bottom: 6px; /* 优化：减小标题下边距，原var(--space-xs)=8px */
  transition: color var(--transition-fast);
}

.product-card:hover .product-info h3 {
  color: var(--primary);
}

/* 产品简介强制2行 - 最高优先级 */
.products-section .products-grid .product-card .product-info p,
.products-grid .product-item .product-info p,
.product-card .product-info p,
.product-info p {
    color: var(--text-muted) !important;
    font-size: var(--font-sm) !important;
    line-height: 1.6 !important;
    margin-bottom: 12px !important;
    display: -webkit-box !important;
    -webkit-line-clamp: 2 !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    max-height: 3.2em !important; /* 2行 × 1.6em = 3.2em 兜底 */
    word-break: break-word !important;
}

/* 第8轮Hotfix+Fix2：产品卡片查看详情按钮强制可见且居中 - 覆盖btn-secondary白色文字为蓝色 */
.product-card .btn-secondary {
  display: block !important;
  margin: var(--space-xs) auto 0 !important; /* Fix2：左右auto自动水平居中 */
  text-align: center !important; /* Fix2：文字居中 */
  visibility: visible !important;
  opacity: 1 !important;
  position: relative !important;
  z-index: 10 !important;
  height: auto !important;
  max-height: none !important;
  color: var(--primary) !important;
  border-color: var(--primary) !important;
  background: transparent !important;
  font-size: 14px !important;
  padding: 10px 24px !important;
  border-radius: var(--radius-sm) !important;
  transition: all 0.3s ease !important;
}

.product-card .btn-secondary:hover {
  background: var(--primary) !important;
  color: #ffffff !important;
  transform: translateY(-2px) !important;
  box-shadow: 0 4px 12px rgba(0, 77, 153, 0.25) !important;
}

/* 核心优势 */
.advantages-section,
.section-advantages {
    background: linear-gradient(180deg, #F0F6FC 0%, #E8F2F8 100%);
    padding: 80px 0;
}

/* 产品推荐 */
.products-section,
.section-products {
    background: linear-gradient(180deg, #F0F6FC 0%, #E8F2F8 100%);
    /* 浅蓝灰渐变，与核心优势区域协调 */
    padding: 80px 0;
}

/* 工程案例 */
.cases-section,
.section-cases {
    background: linear-gradient(180deg, #F5F8FA 0%, #EBF0F5 100%);
    /* 浅灰蓝色渐变，稳重专业 */
    padding: 80px 0;
}

/* 新闻动态 */
.news-section,
.section-news {
    background: linear-gradient(180deg, #FFFEFA 0%, #F8F6F0 100%);
    /* 暖白/米色渐变，温暖亲和 */
    padding: 80px 0;
}

/* 企业文化 */
.culture-section,
.section-culture {
    background: linear-gradient(180deg, #F8FBFD 0%, #EEF3F9 50%, #F5F8FC 100%);
    padding: 80px 0;
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    max-width: 1100px;
    margin: 0 auto;
}
.culture-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    padding: 32px;
    text-align: center;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}
.culture-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.12);
}
.culture-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--gradient-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 28px;
    color: #fff;
}
.culture-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
    text-align: center;
}
.culture-card p {
    font-size: 14px;
    line-height: 1.8;
    color: #666;
    text-align: center;
}

@media (max-width: 992px) {
    .culture-grid { grid-template-columns: repeat(2, 1fr); }
    .culture-card:last-child { grid-column: span 2; max-width: 50%; margin: 0 auto; }
}
@media (max-width: 576px) {
    .culture-grid { grid-template-columns: 1fr; }
    .culture-card:last-child { grid-column: span 1; max-width: 100%; }
}

.cases-filter {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.filter-btn {
  padding: 10px 26px;
  border-radius: var(--radius-xl);
  font-size: var(--font-sm);
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary);
  color: var(--text-light);
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.case-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 260px;
  cursor: pointer;
}

.case-image {
  width: 100%;
  height: 100%;
}

.case-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.case-item:hover .case-image img {
  transform: scale(1.1);
}

.case-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-lg);
  background: linear-gradient(transparent, rgba(0,51,102,0.92));
  color: var(--text-light);
  transform: translateY(20px);
  opacity: 0;
  transition: all var(--transition-normal);
}

.case-item:hover .case-overlay {
  transform: translateY(0);
  opacity: 1;
}

.case-overlay h3 {
  font-size: var(--font-md);
  color: var(--text-light);
  margin-bottom: var(--space-xs);
  font-weight: 600;
}

.case-overlay p {
  font-size: var(--font-sm);
  color: rgba(255,255,255,0.82);
  margin-bottom: var(--space-sm);
  line-height: 1.5;
}

.case-tag {
  display: inline-block;
  padding: 3px 12px;
  background: rgba(212,168,75,0.25);
  border: 1px solid var(--gold);
  border-radius: var(--radius-xl);
  font-size: 11px;
  color: var(--gold);
  font-weight: 600;
}

.news-tabs {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: 20px;
  background: var(--bg-card);
  padding: 6px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  position: relative;
  max-width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

.news-tab {
  padding: 10px 28px;
  border-radius: var(--radius-xl);
  font-weight: 600;
  font-size: var(--font-sm);
  color: var(--text-body);
  background-color: transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  z-index: 2;
  white-space: nowrap;
  border: 1px solid var(--border-color);
}

.news-tab:hover {
  background-color: rgba(0, 77, 153, 0.05);
  color: var(--primary);
  border-color: var(--primary);
}

.news-tab.active {
  background-color: var(--primary);
  color: #ffffff;
  font-weight: 600;
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(0, 77, 153, 0.25);
}

.tab-indicator {
  position: absolute;
  height: calc(100% - 12px);
  background: var(--gradient);
  border-radius: var(--radius-xl);
  top: 6px;
  transition: all var(--transition-normal);
  z-index: 1;
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: 100%;
  margin: 25px auto 0;
  position: relative;
}

.news-item {
  display: flex;
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.news-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--gold);
}

/* 左侧日期区域 */
.news-date {
  min-width: 90px;
  background: var(--gradient);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px 16px;
  color: #fff;
  flex-shrink: 0;
}

.date-day {
  font-size: 36px;
  font-weight: 700;
  line-height: 1;
}

.date-month {
  font-size: 13px;
  font-weight: 500;
  opacity: 0.85;
  margin-top: 4px;
}

/* 右侧内容区 */
.news-content {
  display: flex;
  flex: 1;
  gap: 20px;
  padding: 20px 24px;
  align-items: center;
}

.news-thumb {
  width: 200px;
  height: 140px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
}

.news-thumb img,
.news-thumb-placeholder {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-thumb-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #E8F4FD, #D0E8F7);
}

.news-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.news-category {
  display: inline-block;
  padding: 3px 12px;
  background: rgba(212,168,75,0.1);
  color: var(--gold);
  font-size: 12px;
  font-weight: 600;
  border-radius: 20px;
  width: fit-content;
}

.news-info h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
  transition: color 0.3s ease;
}

.news-item:hover .news-info h3 {
  color: var(--primary);
}

.news-info p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-info a {
  font-size: 14px;
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.3s ease;
}

.news-info a:hover { gap: 8px; }

/* 移动端响应式 */
@media (max-width: 992px) {
  .news-list { gap: 20px; }
  .news-content { padding: 16px 20px; }
  .news-thumb { width: 160px; height: 120px; }
}

@media (max-width: 768px) {
  .news-item { flex-direction: column; }
  .news-date { flex-direction: row; gap: 8px; min-width: auto; padding: 12px 16px; }
  .date-day { font-size: 24px; }
  .date-month { font-size: 12px; margin-top: 0; }
  .news-content { flex-direction: column; padding: 16px; }
  .news-thumb { width: 100%; height: 180px; }
}

.cta-section {
  background: linear-gradient(135deg, #003366 0%, #004D99 50%, #0077CC 100%);
  /* 深蓝渐变增强版，视觉冲击力强 */
  padding: var(--space-3xl) 0;
  text-align: center;
  color: var(--text-light);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(212,168,75,0.12) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-section::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -80px;
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, rgba(0,204,153,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-content {
  position: relative;
  z-index: 2;
}

.cta-title {
  font-size: var(--font-2xl);
  color: var(--text-light);
  margin-bottom: var(--space-md);
  position: relative;
  z-index: 2;
}

.cta-desc {
  color: rgba(255,255,255,0.82);
  font-size: var(--font-md);
  margin-bottom: var(--space-lg);
  position: relative;
  z-index: 2;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
}

.footer {
  background: linear-gradient(180deg, #001a33 0%, #002244 30%, #003366 70%, #004080 100%);
  color: var(--text-light);
  padding-top: var(--space-2xl);
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('../images/footer-bg.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.04;
  mix-blend-mode: overlay;
}

.footer::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background:
    radial-gradient(ellipse at 20% 100%, rgba(212,168,75,0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(0,204,153,0.03) 0%, transparent 50%);
  pointer-events: none;
}

.footer-main {
  position: relative;
  z-index: 2;
}

.footer-main .container {
  position: relative;
  z-index: 2;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1.8fr;
  gap: var(--space-2xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-left-group {
  display: flex;
  flex-direction: column;
}

.footer-right-group {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.footer-col {
  position: relative;
  z-index: 2;
}

.footer-logo {
  height: 62px;
  margin-bottom: 8px;
  width: auto;
  flex-shrink: 0;
}

/* footer-about：LOGO与公司名同行布局 */
.footer-about {
  display: flex;
  flex-direction: row;
  align-items:center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-intro {
  color: rgba(255,255,255,0.62);
  line-height: 1.85;
  font-size: var(--font-sm);
  margin-bottom: 12px;     /* ← 从var(--space-md,约20px)降至12px */
}

.footer-company-full {
    font-size: 20px;
    color: var(--gold);
    font-weight: 700;
    margin-top: 0;
    margin-bottom: 4px;       /* ← 从8px进一步降至4px */
    white-space: nowrap;
    text-align: left;
    line-height: 1.4;
}

.footer-title {
    font-size: var(--font-md);
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--gold);
  position: relative;
  padding-bottom: var(--space-sm);
}

.footer-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 2px;
  background-color: var(--gold);
  border-radius: 1px;
}

.footer-menu li {
  margin-bottom: 6px;
}

.footer-menu a {
  color: rgba(255,255,255,0.65);
  font-size: var(--font-sm);
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-menu a:hover {
  color: var(--gold);
  padding-left: 6px;
}

.footer-address p {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  color: rgba(255,255,255,0.65);
  font-size: var(--font-sm);
  line-height: 1.6;
}

.footer-address i {
  color: var(--gold);
  margin-top: 4px;
  flex-shrink: 0;
}

.qrcode-img {
  max-width: 160px;
  height: auto;
  border-radius: var(--radius-md);
  border: 2px solid rgba(212,168,75,0.25);
  margin-bottom: var(--space-sm);
}

.qrcode-text {
  font-size: var(--font-xs);
  color: rgba(255,255,255,0.55);
  text-align: left;
}

.footer-bottom {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--space-lg) 0;
  font-size: 13px;
  color: rgba(255,255,255,0.8);
  position: relative;
  z-index: 2;
  text-align: center;
}

.footer-bottom p {
  margin-bottom: 0;
  color: rgba(255,255,255,0.8);
  white-space: nowrap;
  overflow-x: auto;
  text-align: center;
  font-size: 13px;
}

.footer-bottom a {
  color: #E8C474;
  transition: color var(--transition-fast);
  text-decoration: none;
}

.footer-bottom a:hover {
  color: #fff;
  text-decoration: underline;
}

.page-banner {
  position: relative;
  height: 300px;
  margin-top: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

.page-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(0,51,102,0.88) 0%, rgba(0,77,153,0.72) 50%, rgba(0,119,204,0.55) 100%);
  z-index: 1;
}

.page-banner .banner-overlay,
.page-banner::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 60%;
  background: linear-gradient(to top, rgba(0,20,40,0.4), transparent);
  pointer-events: none;
}

.page-banner-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--text-light);
}

/* Banner内容容器统一样式 */
.banner-content-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #FFFFFF;
  width: 100%;
}

.banner-content-inner h1,
.banner-content-inner .page-title {
  color: #FFFFFF !important;
  text-align: center !important;
  text-shadow: 0 2px 10px rgba(0,0,0,0.6), 0 0 30px rgba(0,0,0,0.3);
}

.banner-content-inner .page-subtitle {
  color: rgba(255,255,255,0.9) !important;
  text-align: center !important;
  text-shadow: 0 1px 6px rgba(0,0,0,0.4);
  margin-top: 20px;
}

.page-banner-content h1,
.page-banner h1,
.page-banner .banner-title,
.banner-page-title {
  color: #FFFFFF !important;
  text-shadow: 0 2px 10px rgba(0,0,0,0.6), 0 0 30px rgba(0,0,0,0.3);
}

.page-banner-content h1 {
  font-size: var(--font-2xl);
  margin-bottom: 24px;
  letter-spacing: 3px;
}

.page-breadcrumb,
.breadcrumb,
.page-banner .breadcrumb a,
.page-banner span {
  color: rgba(255,255,255,0.95) !important;
  text-shadow: 0 1px 6px rgba(0,0,0,0.5);
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  font-size: var(--font-sm);
  color: rgba(255,255,255,0.78);
}

.breadcrumb a {
  color: rgba(255,255,255,0.78);
  transition: color var(--transition-fast);
}

.breadcrumb a:hover {
  color: var(--gold);
}

.breadcrumb span {
  color: var(--gold);
}

.about-intro-layout {
    display: grid;
    grid-template-columns: 45% 55%;  /* ← 从默认比例改为 文字45% 图片55% */
    gap: var(--space-xl);
    align-items: center;
}
.about-intro-text {
    padding-right: 20px;
}
.about-intro-text h3 {
    font-size: 24px;
    color: var(--primary);
    margin-bottom: 20px;
    padding-left: 16px;
    border-left: 4px solid var(--gold);
}
.about-intro-text p {
    line-height: 1.8;
    color: #555;
    margin-bottom: 16px;
    font-size: 15px;
}
.about-intro-image {
    border-radius: 8px;
    border: 3px solid var(--gold);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    overflow: hidden;
}
.about-intro-image img {
    width: 100%;
    height: auto;
    display: block;
}

@media (max-width: 768px) {
    .about-intro-layout {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .about-intro-text { padding-right: 0; }
}

.about-intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.about-intro-text h2 {
  font-size: var(--font-2xl);
  color: var(--primary);
  margin-bottom: var(--space-md);
  position: relative;
  padding-left: var(--space-lg);
}

.about-intro-text h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  background: var(--gradient-gold);
  border-radius: 2px;
}

.about-intro-text p {
  color: var(--text-body);
  line-height: 1.95;
  margin-bottom: var(--space-md);
  font-size: var(--font-base);
}

.about-intro-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-intro-image img {
    width: 100%;
    height: auto;
    min-height: 360px;       /* ← 新增：最小高度保证存在感 */
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.about-intro-image::after {
  content: '';
  position: absolute;
  top: -12px;
  right: -12px;
  width: 100%;
  height: 100%;
  border: 3px solid var(--gold);
  border-radius: var(--radius-lg);
  z-index: -1;
}

/* ========== 时间轴 Timeline - 奇偶交替绝对定位布局 ========== */

.timeline {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  padding: 60px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--primary), var(--gold));
  border-radius: 2px;
}

/* timeline-item 基础样式 — 使用相对定位为子元素提供定位参考 */
.timeline-item {
    position: relative;
    width: 100%;
    margin-bottom: 50px;
}

/* 奇数项(1,3,5...) — 卡片在左半区，文字靠右（朝向中轴线），蓝色边框在右侧 */
.timeline-item:nth-child(odd) .timeline-card {
    position: relative;
    float: left;
    width: 45%;
    margin-right: 50px;
    text-align: right;
    border-left: none !important;
    border-right: 4px solid var(--primary) !important;
}

.timeline-item:nth-child(odd) .timeline-dot {
    position: absolute;
    left: 50%;
    top: 24px;
    transform: translateX(-50%);
}

/* 偶数项(2,4,6...) — 卡片在右半区 */
.timeline-item:nth-child(even) .timeline-card {
    position: relative;
    float: right;
    width: 45%;
    margin-left: 50px;
}

.timeline-item:nth-child(even) .timeline-dot {
    position: absolute;
    left: 50%;
    top: 24px;
    transform: translateX(-50%);
}

/* 清除浮动 */
.timeline-item::after {
    content: '';
    display: table;
    clear: both;
}

/* ========== 圆点样式 — 蓝色边框白色填充 ========== */
.timeline-dot {
    width: 16px;
    height: 16px;
    border: 3px solid var(--primary);
    background: #fff;
    border-radius: 50%;
    z-index: 2;
    transition: all 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* ========== 年份徽章 badge 样式 — 蓝色背景白字 ========== */
.timeline-year {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    padding: 6px 20px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 700;
    font-family: 'Noto Serif SC', serif;
    margin-bottom: 12px;
    line-height: 1.4;
    transition: all 0.3s ease;
}

/* ========== 卡片样式 — 白色背景 + 左侧蓝色装饰线 ========== */
.timeline-card {
    background: var(--bg-card);
    padding: 24px 28px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary);
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.timeline-card h3 {
  font-size: var(--font-md);
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
  font-family: 'Noto Serif SC', serif;
  font-weight: 700;
}

.timeline-card p {
  font-size: var(--font-sm);
  color: var(--text-body);
  line-height: 1.7;
}

.honor-wall {
  background: linear-gradient(135deg, var(--bg-dark), var(--primary));
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  border: 2px solid rgba(212,168,75,0.3);
  position: relative;
  overflow: hidden;
}

.honor-wall::before {
  content: '';
  position: absolute;
  top: 12px;
  left: 12px;
  right: 12px;
  bottom: 12px;
  border: 1px solid rgba(212,168,75,0.15);
  border-radius: var(--radius-lg);
  pointer-events: none;
}

.honor-wall .section-title h2 {
  color: var(--text-light);
}

.honor-wall .section-title h2::after {
  background: linear-gradient(90deg, var(--gold), transparent);
}

.honor-main-image {
    max-width: 450px;
    margin: 40px auto;
    border-radius: 8px;
    border: 4px solid var(--gold);
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
    overflow: hidden;
}
.honor-main-image img {
    width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
}

.honor-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.honor-card {
  background: rgba(255,255,255,0.07);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(212,168,75,0.2);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  transition: all var(--transition-normal);
  color: var(--text-light);
}

.honor-card:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--gold);
  transform: translateY(-6px);
  box-shadow: 0 8px 24px rgba(212,168,75,0.15);
}

.honor-card i {
  font-size: 2.5rem;
  color: var(--gold);
  margin-bottom: var(--space-md);
  display: block;
}

.honor-card h4 {
  font-size: var(--font-base);
  color: var(--text-light);
  margin-bottom: var(--space-xs);
  font-weight: 600;
}

.honor-card span {
  font-size: var(--font-xs);
  opacity: 0.7;
  display: inline-block;
  padding: 3px 12px;
  background: rgba(212,168,75,0.15);
  border-radius: var(--radius-xl);
}

/* ========== 资质荣誉网格布局（竖向图片4列 Grid） ========== */

/* 发展历程 - 极浅蓝背景（与深蓝主题#004D99协调，高质感配色） */
.timeline-section {
    background-color: #eff6ff;
}

.honor-section {
    background-color: #f8fafc; /* 浅灰蓝背景 - 高级中性调，与整体风格协调 */
}

.honor-section .section-title h2 {
    color: var(--primary);
}

.honor-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr); /* 桌面端4列布局 */
    gap: 20px;
    max-width: 1200px; /* 加宽容器以容纳4列 */
    margin: 0 auto;
    padding: 20px 0;
}

.honor-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    aspect-ratio: 3 / 4; /* 调整为3:4比例，适应4列时高度适中 */
    cursor: pointer;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    background-color: #f5f5f5;
}

.honor-item img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* 保证填充且不变形 */
    transition: transform 0.4s ease;
}

.honor-item:hover {
    box-shadow: var(--shadow-hover-lg); /* 0 18px 40px rgba(0,77,153,0.25) */
    transform: translateY(-8px); /* 上浮效果 */
}

.honor-item:hover img {
    transform: scale(1.05); /* 图片放大 */
}

/* Hover时显示的覆盖层 */
.honor-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px;
    background: linear-gradient(to top, rgba(0,51,102,0.9), transparent);
    transform: translateY(100%); /* 默认隐藏 */
    transition: transform 0.3s ease;
}

.honor-item:hover .honor-overlay {
    transform: translateY(0); /* hover时滑入显示 */
}

.honor-name {
    color: #fff;
    font-size: var(--font-sm);
    font-weight: 600;
    display: block;
    text-align: center;
}

.partner-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: var(--space-lg);
  align-items: center;
}

.partner-logo {
  background: var(--bg-card);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100px;
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

.partner-logo:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
  transform: translateY(-4px);
}

.partner-logo img {
  max-width: 100%;
  max-height: 60px;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: 0.55;
  transition: all var(--transition-normal);
}

.partner-logo:hover img {
  filter: grayscale(0%);
  opacity: 1;
}

/* 合作伙伴页面 - 美化卡片式布局 */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1000px;
  margin: 0 auto;
}

.partner-item {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  text-align: center;
  transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.partner-item:nth-child(odd) {
  background: linear-gradient(145deg, #F8FBFF, #EEF4FA);
}

.partner-item:nth-child(even) {
  background: linear-gradient(145deg, #F0F8F5, #E0F2EA);
}

.partner-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--gold);
}

.partner-icon {
  font-size: 32px;
  color: var(--primary);
  opacity: 0.7;
}

.partner-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
}

.products-tabs {
  display: flex !important;
  justify-content: center !important;      /* 关键！水平居中 */
  text-align: center !important;           /* 辅助：文字居中 */
  gap: var(--space-sm) !important;
  margin-bottom: var(--space-xl) !important;
  background: var(--bg-card) !important;
  padding: 6px !important;
  border-radius: var(--radius-xl) !important;
  box-shadow: var(--shadow-sm) !important;
  position: static !important;           /* 【修复】强制static，禁止relative/absolute/fixed/sticky */
  width: 100% !important;               /* 【修复】强制100%宽度，禁止auto */
  max-width: 100% !important;           /* 【修复】禁止fit-content */
  margin-left: 0 !important;            /* 【修复】重置margin */
  margin-right: 0 !important;           /* 【修复】由flex居中替代 */
  overflow-x: hidden !important;        /* 【修复】强制隐藏横向溢出 */
  overflow-y: visible !important;
  flex-wrap: wrap !important;           /* 【修复】允许换行，禁止nowrap */
}

/* 产品分类 - 改为案例风格（独立按钮平铺）*/
.product-tabs-wrapper,
.news-tabs-wrapper {
    display: flex !important;
    justify-content: center !important;
    gap: var(--space-sm) !important;
    margin-bottom: var(--space-xl) !important;
    flex-wrap: wrap !important;
    /* 透明容器 - 无背景/无padding/无圆角/无阴影 */
    background: transparent !important;
    padding: 0 !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    width: auto !important;
    max-width: none !important;
    text-align: center !important;
}

.tab-btn {
  padding: 10px 28px;
  border-radius: var(--radius-xl);
  font-weight: 600;
  font-size: var(--font-sm);
  color: var(--text-secondary);
  background: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  z-index: 2;
  white-space: nowrap;
  border: none;
}

.tab-btn:hover {
  color: var(--primary);
}

.tab-btn.active {
  color: var(--text-light);
}

/* ========== 产品分类单个标签 - 改为案例风格（独立按钮） ========== */
.product-tab,
.news-tab {
    display: inline-flex !important;
    padding: 10px 26px !important;           /* 与.filter-btn一致 */
    border-radius: var(--radius-xl) !important; /* 24px圆角 */
    font-weight: 600 !important;
    font-size: var(--font-sm) !important;
    color: var(--text-secondary) !important;
    background: var(--bg-card) !important;     /* 独立白色背景 */
    border: 1px solid var(--border-color) !important; /* 独立边框 */
    cursor: pointer !important;
    transition: all var(--transition-fast) !important;
    position: relative !important;
    z-index: 1 !important;
    white-space: nowrap !important;
    flex-shrink: 0 !important;
    font-family: 'Noto Serif SC', serif !important;
}

.product-tab:hover,
.news-tab:hover {
    background: var(--primary) !important;
    color: var(--text-light) !important;
    border-color: var(--primary) !important;
    box-shadow: var(--shadow-sm) !important;
}

.product-tab.active,
.news-tab.active {
    background: var(--primary) !important;
    color: #ffffff !important;
    font-weight: 600 !important;
    border-color: var(--primary) !important;
    box-shadow: var(--shadow-sm) !important;
}

.product-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

.gallery-main {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.gallery-main img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

.gallery-thumbs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

.gallery-thumb {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.gallery-thumb.active,
.gallery-thumb:hover {
  border-color: var(--primary);
}

.gallery-thumb img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

/* 详情页上半部分：左图右文 */
.detail-layout {
    display: grid;
    grid-template-columns: 55% 42%;
    gap: 3%;
    margin-bottom: 60px;
}
.detail-gallery { }
.detail-info { }

/* 参数表格美化 */
.product-params-table {
    width: 100%;
    border-collapse: collapse;
    border: 1px solid #EEE;
    border-radius: 8px;
    overflow: hidden;
    margin: 20px 0;
}
.product-params-table thead th {
    background: var(--primary);
    color: #fff;
    font-weight: 600;
    padding: 12px 16px;
    text-align: left;
    font-size: 14px;
}
.product-params-table tbody td {
    padding: 12px 16px;
    border-bottom: 1px solid #F0F0F0;
    color: #555;
    font-size: 14px;
}
.product-params-table tbody tr:nth-child(even) {
    background: #F8FAFC;
}
.param-label {
    font-weight: 600;
    color: var(--text-secondary);
    min-width: 120px;
}

/* 产品详情描述文字 */
.detail-description {
    max-width: 900px;
    margin: 0 auto;
    line-height: 2;
    color: #444;
    font-size: 15px;
}

/* ========== 分页器样式 v1.1.0 ========== */

/* ========== 产品分类标签样式美化 Task 7 ========== */

/**
 * 产品分类标签容器 - 独立标签模式
 * 使用场景：需要更灵活的标签布局时
 */
.product-category-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 30px;
  justify-content: center;
  align-items: center;
}

/**
 * 产品分类单个标签样式
 * 特点：圆角胶囊状、边框高亮、hover/active状态明显
 */
.product-category-tag {
  padding: 10px 24px;
  background: #ffffff;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-xl);
  font-size: var(--font-sm);
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  font-family: 'Noto Serif SC', serif;
  letter-spacing: 0.5px;
}

.product-category-tag::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: radial-gradient(circle, rgba(0, 77, 153, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: all 0.4s ease;
}

.product-category-tag:hover {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: var(--shadow-sm), 0 4px 12px rgba(0, 77, 153, 0.15);
  transform: translateY(-2px);
}

.product-category-tag:hover::before {
  width: 200%;
  height: 200%;
}

.product-category-tag.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: var(--shadow-sm), 0 4px 12px rgba(0, 77, 153, 0.2);
  font-weight: 700;
}

/* 增强现有的 product-tab 样式以匹配新设计 */
.products-tabs .product-tab,
.news-tabs .news-tab {
  position: relative;
  overflow: hidden;
  letter-spacing: 0.5px;
}

.products-tabs .product-tab::before,
.news-tabs .news-tab::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: all 0.4s ease;
  z-index: 0;
}

.products-tabs .product-tab:hover::before,
.news-tabs .news-tab:hover::before {
  width: 200%;
  height: 200%;
}

.products-tabs .product-tab span,
.news-tabs .news-tab span {
  position: relative;
  z-index: 1;
}

/* 移动端适配 */
@media (max-width: 768px) {
  .product-category-tags {
    gap: 8px;
    margin-bottom: 20px;
  }

  .product-category-tag {
    padding: 8px 18px;
    font-size: var(--font-xs);
    border-radius: var(--radius-lg);
  }
}

/* ========== 分页器样式 v1.1.0（原有） ========== */

/* 【Task 7修复】产品分页器 - 强制正常文档流，禁止浮动到导航上 */
#productsPagination,
.products-section #productsPagination,
.products-section .pagination {
  position: relative !important;           /* 【修复】强制relative，禁止fixed/absolute */
  z-index: auto !important;                /* 【修复】重置z-index，禁止覆盖导航 */
  display: flex !important;
  justify-content: center !important;
  align-items: center !important;
  margin-top: 20px !important;             /* 【优化】缩小顶部间距（原40px） */
  margin-bottom: 30px !important;          /* 【优化】缩小底部间距（原60px） */
  clear: both !important;                  /* 【修复】清除浮动 */
  width: 100% !important;
  float: none !important;                  /* 【修复】禁止浮动 */
  transform: none !important;              /* 【修复】禁止transform偏移 */
}

/* 【新增】新闻分页器 - 缩小上下间距 */
#newsPagination,
.news-section #newsPagination,
.news-section .pagination {
  position: relative !important;
  z-index: auto !important;
  display: flex !important;
  justify-content: center !important;
  align-items: center !important;
  margin-top: 20px !important;             /* 缩小顶部间距 */
  margin-bottom: 30px !important;          /* 缩小底部间距 */
  clear: both !important;
  width: 100% !important;
  float: none !important;
  transform: none !important;
}

/* 分页器容器 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 48px;
    padding: 20px 0;
}

/* 分页按钮通用样式 */
.page-btn,
.page-num {
    min-width: 40px;
    height: 40px;
    padding: 0 14px;
    border: 1px solid var(--border-color);
    background-color: #fff;
    color: var(--text-body);
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.25s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: 'Noto Serif SC', serif;
}

.page-btn:hover,
.page-num:hover {
    border-color: var(--primary);
    color: var(--primary);
    background-color: rgba(0, 77, 153, 0.04);
    box-shadow: var(--shadow-sm);
}

/* 当前激活页码 - 蓝底白字高亮 */
.page-num.active {
    background-color: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(0, 77, 153, 0.25);
    font-weight: 700;
    cursor: default;
}

.page-num.active:hover {
    background-color: var(--primary);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(0, 77, 153, 0.25);
}

/* 禁用状态 */
.page-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    background-color: #f5f5f5;
}

.page-btn:disabled:hover {
    border-color: var(--border-color);
    color: var(--text-muted);
    background-color: #f5f5f5;
    box-shadow: none;
}

/* 移动端分页适配：隐藏上下页文字按钮，只保留页码数字 */
@media (max-width: 768px) {
    .pagination {
        gap: 6px;
        margin-top: 32px;
    }
    .page-btn,
    .page-num {
        min-width: 36px;
        height: 36px;
        padding: 0 10px;
        font-size: 13px;
    }
    /* 小屏幕隐藏上一页/下一页文字按钮 */
    .prev-btn,
    .next-btn {
        display: none;
    }
}

.product-params {
  background: var(--bg-card);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
}

.param-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-sm);
}

.param-table th,
.param-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  text-align: left;
}

.param-table th {
  background: var(--bg-section);
  color: var(--primary);
  font-weight: 700;
  width: 35%;
}

.param-table td {
  color: var(--text-body);
}

.contact-info {
  display: block !important;
  margin-bottom: var(--space-2xl);
}

.contact-info-card {
  background: var(--bg-card);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  text-align: center;
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.contact-info-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-gold);
}

.contact-info-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
  border-color: var(--primary);
}

.contact-info-card-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient);
  border-radius: 50%;
  font-size: 1.8rem;
  color: var(--text-light);
}

.contact-info-card h3 {
  font-size: var(--font-md);
  color: var(--primary);
  margin-bottom: var(--space-sm);
}

.contact-info-card p {
  font-size: var(--font-sm);
  color: var(--text-body);
  line-height: 1.7;
}

.contact-form {
  background: var(--bg-card);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: var(--space-md);
  position: relative;
}

.form-group label {
  display: block;
  font-size: var(--font-sm);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.form-group label .required {
  color: var(--cta);
  margin-left: 2px;
}

.form-control {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: var(--font-base);
  color: var(--text-primary);
  background: var(--bg-card);
  transition: all var(--transition-fast);
  position: relative;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(0,77,153,0.1);
}

.form-control::placeholder {
  color: var(--text-muted);
}

.form-group:focus-within .form-control {
  border-color: var(--primary);
}

textarea.form-control {
  resize: vertical;
  min-height: 130px;
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236B7B8D' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 44px;
}

#scroll-progress {
  position: fixed;
  top: 84px;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--gradient-gold);
  z-index: calc(var(--z-fixed) + 1);
  transition: width 0.1s linear;
  border-radius: 0 2px 2px 0;
}

.progress-fill {
  height: 100%;
  width: 0;
  background: var(--gradient-gold);
  border-radius: 0 2px 2px 0;
  transition: width 0.1s linear;
}

.bg-gradient-banner-1 { background: linear-gradient(135deg, #003366 0%, #004D99 40%, #0077CC 70%, #00A3E0 100%); }
.bg-gradient-banner-2 { background: linear-gradient(135deg, #002D52 0%, #004D99 35%, #006B9C 65%, #00CC99 100%); }
.bg-gradient-banner-3 { background: linear-gradient(135deg, #001a33 0%, #003366 30%, #004D99 60%, #D4A84B 100%); }

.bg-gradient-page-about { background: linear-gradient(135deg, #003366, #0055AA); }
.bg-gradient-page-products { background: linear-gradient(135deg, #002244, #004488); }
.bg-gradient-page-cases { background: linear-gradient(135deg, #001133, #003366); }
.bg-gradient-page-news { background: linear-gradient(135deg, #001a2e, #003d5c); }
.bg-gradient-page-contact { background: linear-gradient(135deg, #002233, #004466); }

.bg-gradient-product-1 { background: linear-gradient(145deg, #E8F4FD, #D0E8F7, #B8DCEB); }
.bg-gradient-product-2 { background: linear-gradient(145deg, #E0ECFA, #C5DAF5, #AAC8EF); }
.bg-gradient-product-3 { background: linear-gradient(145deg, #E0F7F4, #B8EBE4, #90DFD4); }
.bg-gradient-product-4 { background: linear-gradient(145deg, #FBF5EE, #F5E6D3, #EDD7B8); }

.bg-gradient-case-1 { background: linear-gradient(145deg, #1a365d, #2c5282, #3182ce); }
.bg-gradient-case-2 { background: linear-gradient(145deg, #1a3a4a, #234e5e, #2c6e7e); }
.bg-gradient-case-3 { background: linear-gradient(145deg, #2d3748, #4a5568, #718096); }
.bg-gradient-case-4 { background: linear-gradient(145deg, #22543d, #276749, #38a169); }

.bg-gradient-news-1 { background: linear-gradient(145deg, #ebf4ff, #dce9fa, #c3dafb); }
.bg-gradient-news-2 { background: linear-gradient(145deg, #f0f4ff, #e0e8fe, #cddafe); }
.bg-gradient-news-3 { background: linear-gradient(145deg, #faf5ff, #f0e6fd, #e6d8fb); }
.bg-gradient-news-4 { background: linear-gradient(145deg, #fff5f5, #ffe0e0, #ffcaca); }
.bg-gradient-news-5 { background: linear-gradient(145deg, #fffaf0, #ffedd5, #ffdcb0); }
.bg-gradient-news-6 { background: linear-gradient(145deg, #f0fff4, #dcfce7, #bbf7d0); }

.wow {
  visibility: hidden;
}

@keyframes fadeInLeftBanner {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes borderFlow {
  0% { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

@keyframes dropletBounce {
  0%, 100% {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
  30% {
    transform: translateY(-24px) scale(1.12);
    opacity: 0.7;
  }
  60% {
    transform: translateY(-8px) scale(0.95);
    opacity: 0.9;
  }
}

@keyframes textPulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

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

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes rotateIn {
  from {
    opacity: 0;
    transform: rotate(-10deg) scale(0.95);
  }
  to {
    opacity: 1;
    transform: rotate(0) scale(1);
  }
}

@keyframes slideInFromBottom {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInFromTop {
  from {
    opacity: 0;
    transform: translateY(-40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes zoomIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes flipIn {
  from {
    opacity: 0;
    transform: perspective(400px) rotateY(90deg);
  }
  to {
    opacity: 1;
    transform: perspective(400px) rotateY(0);
  }
}

@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 5px rgba(212,168,75,0.3); }
  50% { box-shadow: 0 0 20px rgba(212,168,75,0.6), 0 0 40px rgba(212,168,75,0.2); }
}

@keyframes goldShimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes ripple {
  0% {
    transform: scale(0);
    opacity: 0.5;
  }
  100% {
    transform: scale(4);
    opacity: 0;
  }
}

@keyframes countUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes iconSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

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

@keyframes waveMove {
  0% { transform: translateX(0) translateY(0); }
  25% { transform: translateX(5px) translateY(-3px); }
  50% { transform: translateX(0) translateY(-5px); }
  75% { transform: translateX(-5px) translateY(-3px); }
  100% { transform: translateX(0) translateY(0); }
}

@keyframes fadeScale {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes slideRight {
  from { transform: translateX(-100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes underlineGrow {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes bounceSoft {
  0%, 100% { transform: translateY(0); }
  25% { transform: translateY(-8px); }
  50% { transform: translateY(0); }
  75% { transform: translateY(-4px); }
}

@keyframes rotate3d {
  from { transform: perspective(500px) rotateY(-15deg) rotateX(5deg); }
  to { transform: perspective(500px) rotateY(0) rotateX(0); }
}

@media (max-width: 1200px) {
  .container { padding: 0 24px; }
  .products-grid { grid-template-columns: repeat(3, 1fr); gap: 18px; }
  .cases-grid { grid-template-columns: repeat(3, 1fr); }
  .partner-grid { grid-template-columns: repeat(6, 1fr); }
  .partners-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { gap: var(--space-lg); }
}

@media (max-width: 992px) {
  :root { --font-3xl: 36px; --font-2xl: 28px; --font-xl: 24px; }

  .bannerSwiper { height: 520px; }
  .banner-title { font-size: 38px; }
  .page-banner { height: 260px; }
  .page-banner-content h1 { font-size: var(--font-xl); }

  .advantages-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .stat-number { font-size: 40px; }

  .products-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }

  .about-intro-grid { grid-template-columns: 1fr; gap: var(--space-xl); }
  .about-intro-image { order: -1; }

  .timeline::before { left: 24px; }
  .timeline-item {
    padding-left: 52px;
    margin-bottom: 36px;
  }
  .timeline-item:nth-child(odd) .timeline-card,
  .timeline-item:nth-child(even) .timeline-card {
    float: none;
    width: 100%;
    margin-left: 0;
    margin-right: 0;
  }
  .timeline-item:nth-child(odd) .timeline-dot,
  .timeline-item:nth-child(even) .timeline-dot {
    left: 16px;
    transform: translateX(-50%);
  }

  .honor-grid { grid-template-columns: repeat(3, 1fr); }
  .partner-grid { grid-template-columns: repeat(4, 1fr); }
  .partners-grid { grid-template-columns: repeat(2, 1fr); }

  /* 资质荣誉Grid平板端3列 */
  .honor-section .honor-grid {
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
      max-width: 100%;
  }

  .product-gallery { grid-template-columns: 1fr; }
  .gallery-main img { height: 360px; }

  .contact-info { display: block !important; }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  .footer-right-group {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }

  .news-list { gap: 16px; max-width: 100%; margin: 24px auto 0; }
  .news-content { padding: 14px 16px; gap: 14px; }
  .news-thumb { width: 140px; height: 100px; }
}

@media (max-width: 768px) {
  .section { padding: var(--space-xl) 0; }
  .section-alt { padding: var(--space-xl) 0; }
  .section-padding { padding: var(--space-xl) 0; }
  .section-title h2 { font-size: var(--font-xl); letter-spacing: 2px; }
  .section-subtitle { font-size: var(--font-sm); margin: 20px auto 48px; }

  .navbar { height: 68px; }
  .nav-menu { display: none; }
  .nav-toggle { display: flex; }
  .mobile-menu { display: block; top: 68px; }
  .banner-section { margin-top: 68px; }
  .page-banner { margin-top: 68px; }

  .bannerSwiper { height: 440px; }
  .banner-content { padding: 0 30px; max-width: 90%; }
  .banner-title { font-size: 30px; }
  .banner-desc { font-size: var(--font-base); }
  .banner-actions { flex-direction: column; align-items: flex-start; gap: var(--space-sm); }
  .swiper-button-prev,
  .swiper-button-next { width: 44px; height: 44px; font-size: 16px; }
  .swiper-button-prev { left: 12px; }
  .swiper-button-next { right: 12px; }

  .advantages-grid { grid-template-columns: 1fr; }
  .stat-number { font-size: 36px; }

  .products-grid { grid-template-columns: 1fr; gap: 12px; }
  .cases-grid { grid-template-columns: 1fr; }
  .case-item { height: 220px; }

  .cases-filter { gap: var(--space-xs); }
  .filter-btn { padding: 8px 18px; font-size: var(--font-xs); }

  .news-list { gap: 14px; max-width: 100%; margin: 20px auto 0; }
  .news-item { flex-direction: column; }
  .news-date { flex-direction: row; gap: 8px; min-width: auto; padding: 12px 16px; }
  .date-day { font-size: 24px; }
  .date-month { font-size: 12px; margin-top: 0; }
  .news-content { flex-direction: column; padding: 16px; gap: 12px; }
  .news-thumb { width: 100%; height: 180px; }

  .page-banner { height: 200px; }
  .page-banner-content h1 { font-size: var(--font-lg); }

  .honor-grid { grid-template-columns: repeat(2, 1fr); }
  .partner-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-md); }
  .partners-grid { grid-template-columns: 1fr; }

  /* 资质荣誉Grid手机端2列 */
  .honor-section .honor-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      max-width: 100%;
  }

  .contact-info { display: block !important; }

  .footer-grid { grid-template-columns: 1fr; gap: var(--space-lg); }
  .footer-right-group { grid-template-columns: 1fr; gap: var(--space-lg); }
  .footer-bottom {
    padding: var(--space-md) 0;
  }
  .footer-bottom p {
    white-space: normal;
    font-size: 12px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px;
  }

  .products-tabs,
  .news-tabs {
    flex-wrap: wrap;
    justify-content: center;
  }
  .tab-btn { padding: 8px 20px; font-size: var(--font-xs); }
  .news-tab { padding: 8px 20px; font-size: var(--font-xs); }

  .form-row { display: grid; grid-template-columns: 1fr; gap: var(--space-sm); }
}

@media (max-width: 576px) {
  html { font-size: 14px; }
  .container { padding: 0 16px; }

  .bannerSwiper { height: 380px; }
  .banner-title { font-size: 26px; }
  .banner-desc { font-size: var(--font-sm); }
  .banner-tag { font-size: 11px; padding: 4px 14px; }

  .page-banner { height: 170px; }
  .page-banner-content h1 { font-size: var(--font-md); }
  .breadcrumb { font-size: var(--font-xs); }

  .btn-primary { padding: 12px 28px; font-size: var(--font-sm); }
  .btn-secondary { padding: 10px 24px; font-size: var(--font-sm); }
  .btn-cta { padding: 12px 28px; font-size: var(--font-sm); }

  .stat-number { font-size: 30px; }
  .advantage-icon { width: 64px; height: 64px; font-size: 1.6rem; }

  .product-image { aspect-ratio: 4 / 3; }
  .case-item { height: 190px; }

  .timeline::before { left: 16px; }
  .timeline-item { padding-left: 38px; margin-bottom: 28px; }
  .timeline-item:nth-child(odd) .timeline-dot,
  .timeline-item:nth-child(even) .timeline-dot {
    left: 10px;
  }
  .timeline-year { padding: 4px 14px; font-size: 13px; }
  .timeline-card { padding: 18px 20px; }

  .gallery-thumb img { height: 150px; }
  .gallery-main img { height: 280px; }

  .swiper-button-next,
  .swiper-button-prev {
    width: 38px !important;
    height: 38px !important;
  }
  .swiper-button-next::after,
  .swiper-button-prev::after {
    font-size: 14px !important;
  }
}

@media (max-width: 480px) {
  html { font-size: 13px; }

  .bannerSwiper { height: 320px; }
  .banner-title { font-size: 22px; line-height: 1.3; }
  .banner-content { padding: 0 20px; }

  .section-title h2 { font-size: var(--font-lg); }
  .section-subtitle { font-size: var(--font-xs); }

  .card { border-radius: var(--radius-md); }
  .advantage-card { padding: var(--space-lg) var(--space-md); }

  .footer-logo { height: 42px; }

  /* 移动端footer-about：LOGO与公司名同行或换行 */
  .footer-about {
    flex-direction: row;
    gap: 12px;
    align-items: center;
  }
  .footer-company-full {
    font-size: 13px;
    white-space: normal;
  }

  .footer-title { font-size: var(--font-base); }

  /* 资质荣誉Grid小屏单列 */
  .honor-section .honor-grid {
      grid-template-columns: 1fr;
      gap: 16px;
      max-width: 100%;
  }
}

@media (hover: none) and (pointer: coarse) {
  .card:hover,
  .advantage-card:hover,
  .product-card:hover,
  .case-item:hover,
  .news-item:hover,
  .contact-info-card:hover,
  .honor-card:hover,
  .partner-logo:hover {
    transform: none;
  }

  .btn-primary:hover,
  .btn-secondary:hover,
  .btn-cta:hover {
    transform: none;
  }

  .card:active,
  .advantage-card:active,
  .product-card:active {
    transform: scale(0.98);
  }
}

/* ========== Banner 产品图展示（智能管控幻灯片专用） ========== */

/**
 * banner-content-split - 智能管控主题幻灯片的左右分栏布局容器
 * 使用flex实现左侧文字60%、右侧产品图40%的布局
 */
.banner-content-split {
  display: flex !important;
  flex-direction: row !important;
  align-items: stretch !important;
  justify-content: space-between !important;
  max-width: 1400px !important;
  width: calc(100% - 80px) !important;
  padding-left: 0 !important;
  padding-right: 0 !important;
  margin: 0 auto !important;
  gap: 40px !important;
  height: 100% !important;
}

/**
 * banner-text-col - 左侧文字内容区域
 * 占据60%宽度，保持原有文字排版和动画效果
 */
.banner-text-col {
  flex: 0 0 60%;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding: 54px 0 !important;
}

/**
 * banner-product-col - 右侧产品图展示区域
 * 占据40%宽度，包含产品图片及装饰效果
 */
.banner-product-col {
  flex: 0 0 40%;
  display: flex;
  align-items: stretch !important;
  justify-content: center;
  position: relative;
  padding: 0 !important;
  height: 100%;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

/**
 * banner-product-img - 产品主图样式
 * 尺寸：填满容器高度，最大宽度520px
 * 视觉效果：圆角、阴影、hover缩放增强
 * 动画：fadeInRight入场 + 轻微上浮
 */
.banner-product-img {
  max-width: 520px;
  width: 100%;
  height: 100%;
  box-shadow:
    0 8px 32px rgba(0, 77, 153, 0.25),
    0 4px 12px rgba(0, 204, 153, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
  object-fit: contain;
  transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              box-shadow 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  animation: fadeInRightProduct 1s ease 0.5s both;
  filter: drop-shadow(0 8px 16px rgba(0, 51, 102, 0.2));
}

/**
 * 产品图hover状态 - 放大至1.05倍并增强阴影层次
 */
.banner-product-img:hover {
  transform: scale(1.05) translateY(-6px);
  box-shadow:
    0 20px 48px rgba(0, 77, 153, 0.35),
    0 8px 24px rgba(0, 204, 153, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

/**
 * fadeInRightProduct - 产品图入场动画关键帧
 * 从右侧30px外 + 透明度0 渐入，同时轻微上浮10px
 */
@keyframes fadeInRightProduct {
  0% {
    opacity: 0;
    transform: translateX(30px) translateY(10px);
  }
  100% {
    opacity: 1;
    transform: translateX(0) translateY(0);
  }
}

/* ========== 响应式适配：平板端（768px - 992px）========== */
@media (max-width: 992px) and (min-width: 768px) {
  .banner-content-split {
    max-width: 900px !important;
    gap: var(--space-lg);
  }

  .banner-text-col {
    flex: 0 0 55%;
  }

  .banner-product-col {
    flex: 0 0 45%;
  }

  .banner-product-img {
    max-width: 360px;
  }
}

/* ========== 响应式适配：移动端（<768px）隐藏产品图 ========== */
@media (max-width: 767px) {
  .banner-content-split {
    flex-direction: column;
    max-width: 650px !important;
    gap: 0;
  }

  .banner-text-col {
    flex: 0 0 auto;
    width: 100%;
  }

  .banner-product-col {
    display: none;
  }
}

/* ========== Contact Page Redesign v2（修复版） ========== */

/*
 * 联系方式卡片网格容器 - PC端三列等宽Grid布局
 * 布局策略：CSS Grid + align-items:stretch 实现等高卡片
 * 间距：32px 统一gap
 * 对齐：justify-items: stretch 让卡片填满网格单元
 */
.contact-cards-grid {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr) !important;
    align-items: stretch !important;
    gap: 32px !important;
    padding: 20px 0;
    width: 100%;
    box-sizing: border-box !important;
    margin-left: auto !important;
    margin-right: auto !important;
}

/*
 * 单张联系方式卡片 - PC端核心样式
 * 内部布局：flex column + 居中对齐
 * 视觉规格：白底、12px圆角、品牌色阴影
 * 交互：hover上浮4px + 阴影加深 + 顶部渐变条显现
 */
.contact-card {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    text-align: left !important;
    padding: 32px 28px !important;
    background: #FFFFFF !important;
    border-radius: 12px !important;
    box-shadow: 0 4px 16px rgba(0, 77, 153, 0.10) !important;
    transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                box-shadow 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94) !important;
    position: relative;
    overflow: hidden;
    height: auto;
    min-height: 260px;
    justify-content: flex-start;
    width: 100%;
}

/* 卡片顶部装饰渐变条 - hover时显现 */
.contact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #004D99, #C9A96E);
    opacity: 0;
    transition: opacity 0.35s ease;
}

/* 卡片hover状态 - 上浮 + 阴影增强 + 渐变条显示 */
.contact-card:hover {
    transform: translateY(-6px) !important;
    box-shadow: 0 12px 32px rgba(0, 77, 153, 0.16) !important;
}

.contact-card:hover::before {
    opacity: 1;
}

/*
 * 卡片图标容器 - 64x64px 圆形渐变背景
 * 渐变色：深蓝#004D99 -> 中蓝#0077CC
 * 图标大小：28px 白色
 */
.contact-card-icon {
    width: 64px !important;
    height: 64px !important;
    border-radius: 50% !important;
    background: linear-gradient(135deg, #004D99 0%, #0077CC 100%) !important;
    color: #FFFFFF !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 28px !important;
    margin-bottom: 20px !important;
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 0.35s ease !important;
    flex-shrink: 0;
}

/* 图标hover微动画 - 轻微放大+旋转 */
.contact-card:hover .contact-card-icon {
    transform: scale(1.08) rotate(5deg) !important;
    box-shadow: 0 8px 24px rgba(0, 77, 153, 0.30) !important;
}

/*
 * 卡片标题 h3 - 服务热线/公司地址/电子邮箱
 * 字号：20px (1.25rem)
 * 字重：700 (Bold)
 * 颜色：主文本色 #1A1A2E
 */
.contact-card h3 {
    font-size: 20px !important;
    font-weight: 700 !important;
    color: #1A1A2E !important;
    margin: 0 0 16px 0 !important;
    line-height: 1.3;
    letter-spacing: 0.5px;
}

/*
 * 卡片详情文字 - 电话号码/地址/邮箱等具体信息
 * 字号：14px
 * 行高：1.8 保证多行阅读舒适
 * 颜色：正文色 #4A5568
 */
.contact-detail {
    font-size: 14px !important;
    color: #4A5568 !important;
    line-height: 1.8 !important;
    margin: 0 0 12px 0 !important;
    word-break: break-word;
}

/* 详情中的strong标签加粗强调 */
.contact-detail strong {
    color: #004D99;
    font-weight: 600;
}

/*
 * 卡片副标题/说明文字 - 工作时间/欢迎参观等提示
 * 字号：12px
 * 颜色：弱化文本色 #6B7B8D
 */
.contact-sub {
    font-size: 12px !important;
    color: #6B7B8D !important;
    margin: 0 !important;
    padding-top: 4px;
}

/* ---- Section 2: Material Design 浮动标签表单 ---- */
.contact-form-modern {
  max-width: 720px;
  margin: 0 auto;
  background: #FAFBFC;
  padding: 48px 40px;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0,77,153,0.08);
  border: 1px solid #E0E6ED;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.floating-label-group {
  position: relative;
  margin-bottom: 28px;
}

.floating-label-group label {
  position: absolute;
  top: 50%;
  left: 18px;
  transform: translateY(-50%);
  font-size: 15px;
  color: #6B7B8D;
  pointer-events: none;
  transition: all 0.2s ease;
  font-weight: 500;
  z-index: 1;
  background: transparent;
  padding: 0 4px;
}

.floating-label-group label .required {
  color: #D4380D;
  margin-left: 2px;
}

/* ---- 表单输入控件基础样式 ---- */
/* 非对称padding补偿Noto Serif SC字体基线偏移：上小下大，视觉垂直居中 */
/* 总高度 ≈ padding-top(6) + padding-bottom(24) + line-height*font-size(15*1.4=21) + border(2) = 53px */
.floating-label-group input {
    width: 100%;
    padding: 6px 16px 24px 16px !important;
    border: 1px solid #E0E6ED !important;
    border-radius: 8px !important;
    font-size: 15px !important;
    color: #1A1A2E !important;
    background: #FFFFFF !important;
    transition: all 0.2s ease !important;
    outline: none !important;
    font-family: 'Noto Serif SC', serif !important;
    height: auto !important;
    line-height: 1.4 !important;
    box-sizing: border-box !important;
}

.floating-label-group textarea {
    width: 100%;
    padding: 18px 16px;
    border: 1px solid #E0E6ED;
    border-radius: 8px;
    font-size: 15px;
    color: #1A1A2E;
    background: #FFFFFF;
    transition: all 0.2s ease;
    outline: none;
    font-family: 'Noto Serif SC', serif;
    resize: vertical;
    min-height: 120px;
    line-height: 1.5;
    box-sizing: border-box;
}

/* textarea 的 label 定位到左上角（非垂直居中）— 使用class选择器兼容旧版Edge */
.floating-label-group.has-textarea label {
    top: 18px;
    transform: none;
}

.floating-label-group select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236B7B8D' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center; /* 箭头垂直居中 */
    padding: 18px 40px 18px 16px; /* 左右padding不同，右侧留出箭头空间 */
    cursor: pointer;
    height: 54px; /* 与input保持一致的高度 */
    line-height: normal; /* 使用normal确保选项文字垂直居中 */
    border: 1px solid #E0E6ED;
    border-radius: 8px;
    font-size: 15px;
    color: #1A1A2E;
    background-color: #FFFFFF;
    transition: all 0.2s ease;
    outline: none;
    font-family: 'Noto Serif SC', serif;
    box-sizing: border-box;
}

.floating-label-group select option {
    color: #1A1A2E;
    padding: 8px;
    min-height: 40px; /* 使用min-height而非固定height，增强兼容性 */
    line-height: 40px; /* option项垂直居中 */
}

.floating-label-group input:focus,
.floating-label-group textarea:focus,
.floating-label-group select:focus {
  border-color: #004D99;
  box-shadow: 0 0 0 3px rgba(0,77,153,0.10);
}

.floating-label-group input:focus + .form-line,
.floating-label-group textarea:focus + .form-line,
.floating-label-group select:focus + .form-line {
  left: 0;
  width: 100%;
}

.floating-label-group input:not(:placeholder-shown) ~ label,
.floating-label-group textarea:not(:placeholder-shown) ~ label,
.floating-label-group input:focus ~ label,
.floating-label-group textarea:focus ~ label,
.floating-label-group select:focus ~ label {
  top: 0;
  transform: translateY(-50%);
  font-size: 0.75rem;
  color: #004D99;
  font-weight: 600;
}

.floating-label-group select:focus ~ label {
  top: 0;
  transform: translateY(-50%);
  font-size: 0.75rem;
  color: #004D99;
  font-weight: 600;
}

.form-line {
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #004D99, #C9A96E);
  transition: all 0.3s ease;
  border-radius: 1px;
}

.error-message {
  display: block;
  font-size: 0.85rem;
  color: #D4380D;
  margin-top: 4px;
  min-height: 18px;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.floating-label-group.has-error input,
.floating-label-group.has-error textarea,
.floating-label-group.has-error select {
  border-color: #D4380D;
  animation: formShake 0.4s ease;
}

.floating-label-group.has-error .error-message {
  opacity: 1;
}

@keyframes formShake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}

/* 表单操作按钮区 */
.form-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid #E0E6ED;
}

.btn-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  background: linear-gradient(135deg, #004D99, #0077CC);
  color: #FFFFFF;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  letter-spacing: 0.5px;
  position: relative;
  overflow: hidden;
}

.btn-submit:hover {
  background: linear-gradient(135deg, #005BB3, #0088DD);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,77,153,0.30);
}

.btn-submit:hover i {
  transform: rotate(15deg) translateX(3px);
  transition: transform 0.3s ease;
}

.btn-submit i {
  transition: transform 0.3s ease;
}

.btn-outline-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  background: transparent;
  color: #4A5568;
  font-size: 1rem;
  font-weight: 600;
  border: 1px solid #E0E6ED;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  letter-spacing: 0.5px;
}

.btn-outline-secondary:hover {
  background: #F5F7FA;
  border-color: #004D99;
  color: #004D99;
}

/* ---- Section 3: 地图展示区增强 ---- */
/* [修复] 公司位置标题居中：使用 block 布局 + text-align center */
.map-section .section-title {
    text-align: center !important;
    position: relative;
    display: block !important; /* 改回 block，避免 inline-block 居中问题 */
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 40px;
}

/* 装饰线居中 - 相对于标题容器水平居中 */
.map-section .section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%; /* 相对于标题容器居中 */
    transform: translateX(-50%); /* 偏移自身宽度的50%实现完全居中 */
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, transparent, #C9A96E, transparent);
    border-radius: 2px;
}

.map-container-modern {
  background: #FFFFFF;
  padding: 12px;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0,77,153,0.10);
  max-width: 100%;
  margin: 0 auto;
}

.map-container-modern iframe {
  border-radius: 8px;
  display: block;
}

/* ---- Section 4: 二维码关注板块重设计 ---- */
.qrcode-grid-modern {
  display: grid;
  grid-template-columns: 40% 60%;
  gap: 48px;
  align-items: center;
}

.qrcode-image-wrap-modern {
  display: flex;
  justify-content: center;
  align-items: center;
}

.qrcode-container-modern {
  background: #FFFFFF;
  padding: 20px;
  border-radius: 16px;
  box-shadow: 0 8px 28px rgba(0,77,153,0.12);
  display: inline-block;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.qrcode-container-modern:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(0,77,153,0.18);
}

.qrcode-text-wrap-modern h3 {
  font-size: 1.75rem;
  color: #1A1A2E;
  margin-bottom: 20px;
  font-weight: 700;
  position: relative;
  display: inline-block;
  padding-bottom: 12px;
}

.qrcode-text-wrap-modern h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, #C9A96E, #FFD700);
  border-radius: 2px;
}

.qrcode-description {
  font-size: 1rem;
  line-height: 1.8;
  color: #4A5568;
  max-width: 500px;
  margin-bottom: 24px;
}

.qrcode-features-modern {
  list-style: none;
  padding: 0;
  margin: 0;
}

.qrcode-features-modern li {
  padding: 10px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: background 0.2s ease, padding-left 0.2s ease;
  border-radius: 6px;
  font-size: 0.95rem;
  color: #4A5568;
}

.qrcode-features-modern li:hover {
  background: #F5F7FA;
  padding-left: 8px;
}

.qrcode-features-modern li i.fa-check-circle {
  color: #C9A96E;
  font-size: 1.1rem;
  flex-shrink: 0;
}

/* ---- 联系页面响应式适配（修复版） ---- */

/*
 * 平板端断点：992px及以下
 * 策略：保持3列Grid，缩小间距和内边距
 */
@media (max-width: 992px) {
  .contact-cards-grid {
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 24px !important;
    padding: 16px 0;
  }

  .contact-card {
    padding: 28px 20px !important;
    min-height: 240px;
  }

  .contact-card-icon {
    width: 56px !important;
    height: 56px !important;
    font-size: 24px !important;
    margin-bottom: 16px !important;
  }

  .contact-card h3 {
    font-size: 18px !important;
    margin-bottom: 12px !important;
  }

  .contact-detail {
    font-size: 13px !important;
  }

  .qrcode-grid-modern {
    grid-template-columns: 45% 55%;
    gap: 32px;
  }

  .contact-form-modern {
    padding: 36px 28px;
  }
}

@media (max-width: 768px) {
  /*
   * 移动端断点：768px及以下（竖屏平板+手机）
   * 策略：切换为单列垂直堆叠，卡片宽度100%
   */
  .contact-cards-grid {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
    padding: 0 12px;
    justify-items: center !important;
  }

  .contact-card {
    max-width: 100% !important;
    width: 100% !important;
    padding: 28px 24px !important;
    min-height: auto !important;
  }

  .contact-card-icon {
    width: 56px !important;
    height: 56px !important;
    font-size: 24px !important;
  }

  .contact-card h3 {
    font-size: 18px !important;
  }

  .contact-detail {
    font-size: 13px !important;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .contact-form-modern {
    padding: 28px 20px;
  }

  .qrcode-grid-modern {
    grid-template-columns: 1fr;
    gap: 32px;
    text-align: center;
  }

  .qrcode-image-wrap-modern {
    order: -1;
    align-items: center;
  }

  .qrcode-text-wrap-modern h3::after {
    left: 50%;
    transform: translateX(-50%);
  }

  .qrcode-description {
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
  }

  .map-container-modern iframe {
    height: 300px !important;
  }

  .form-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-submit,
  .btn-outline-secondary {
    width: 100%;
    justify-content: center;
  }
}

/*
 * 小屏手机断点：576px及以下
 * 策略：进一步缩小内边距和字号
 */
@media (max-width: 576px) {
  .contact-cards-grid {
    gap: 16px !important;
    padding: 0 8px;
  }

  .contact-card {
    padding: 24px 18px !important;
  }

  .contact-card-icon {
    width: 52px !important;
    height: 52px !important;
    font-size: 22px !important;
    margin-bottom: 14px !important;
  }

  .contact-card h3 {
    font-size: 17px !important;
    margin-bottom: 10px !important;
  }

  .contact-detail {
    font-size: 13px !important;
    line-height: 1.7 !important;
    margin-bottom: 10px !important;
  }

  .contact-sub {
    font-size: 11px !important;
  }

  .floating-label-group input,
  .floating-label-group textarea,
  .floating-label-group select {
    padding: 16px 14px 10px;
    font-size: 14px;
  }

  .floating-label-group label {
    font-size: 14px;
    left: 14px;
  }

  .btn-submit {
    padding: 12px 24px;
    font-size: 0.95rem;
  }

  .qrcode-text-wrap-modern h3 {
    font-size: 1.5rem;
  }
}

/* ============================================================
   Task 8: About页面丰富UX交互效果
   ============================================================ */

/* ---------- 1. 公司简介图片Hover放大效果 ---------- */
.about-intro-image {
    overflow: hidden;
    border-radius: var(--radius-md);
    position: relative;
}

.about-intro-image img {
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

.about-intro-image:hover img {
    transform: scale(1.05);
}

/* 图片容器hover时边框发光 */
.about-intro-image:hover {
    box-shadow: 0 12px 36px rgba(0, 77, 153, 0.18), 0 0 0 2px rgba(212, 168, 75, 0.3);
}

/* ---------- 2. 发展历程时间轴Hover交互增强 ---------- */
.timeline-item {
    transition: all 0.35s ease;
    position: relative;
}

.timeline-item:hover {
    transform: translateY(-6px);
}

.timeline-item:hover .timeline-card {
    box-shadow: var(--shadow-hover);
    border-left-color: var(--gold);
    border-color: rgba(201, 169, 110, 0.5);
}

/* 时间线圆点hover高亮 — 放大+金色光晕 */
.timeline-item:hover .timeline-dot {
    border-color: var(--gold);
    background: var(--gold);
    box-shadow: 0 0 0 6px rgba(201, 169, 110, 0.25), 0 0 16px rgba(201, 169, 110, 0.35);
    transform: translateX(-50%) scale(1.3);
}

/* 时间线年份徽章hover效果 */
.timeline-item:hover .timeline-year {
    background: var(--gold);
    box-shadow: 0 4px 12px rgba(201, 169, 110, 0.4);
}

/* ---------- 3. 资质荣誉卡片Hover增强效果 ---------- */
.honor-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    aspect-ratio: 2 / 3;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    background-color: #f5f5f5;
}

.honor-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
    will-change: transform;
}

.honor-item:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 50px rgba(0, 77, 153, 0.3);
}

.honor-item:hover img {
    transform: scale(1.08);
}

/* Hover时显示的覆盖层 */
.honor-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px;
    background: linear-gradient(to top, rgba(0, 51, 102, 0.92), transparent);
    transform: translateY(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 2;
}

.honor-item:hover .honor-overlay {
    transform: translateY(0);
}

.honor-name {
    color: #fff;
    font-size: var(--font-sm);
    font-weight: 600;
    display: block;
    text-align: center;
}

/* 闪烁光效扫过动画 */
.honor-item::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 30%,
        rgba(255, 255, 255, 0.25) 50%,
        transparent 70%
    );
    transform: translateX(-100%) rotate(15deg);
    transition: transform 0.6s ease;
    pointer-events: none;
    z-index: 3;
}

.honor-item:hover::before {
    transform: translateX(100%) rotate(15deg);
}

/* ---------- 4. 企业文化卡片Hover增强 ---------- */
.culture-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    padding: 32px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    position: relative;
    overflow: hidden;
    border: 1px solid transparent;
}

.culture-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-gold);
    transform: scaleX(0);
    transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    transform-origin: left;
}

.culture-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 16px 40px rgba(0, 77, 153, 0.14);
    border-color: rgba(212, 168, 75, 0.2);
}

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

.culture-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--gradient-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 28px;
    color: #fff;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.culture-card:hover .culture-icon {
    transform: scale(1.12) rotate(8deg);
    box-shadow: 0 6px 20px rgba(212, 168, 75, 0.35);
}

.culture-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 12px;
    text-align: center;
    transition: color 0.3s ease;
}

.culture-card:hover h3 {
    color: var(--primary);
}

.culture-card p {
    font-size: 14px;
    line-height: 1.8;
    color: #666;
    text-align: center;
    transition: color 0.3s ease;
}

.culture-card:hover p {
    color: var(--text-body);
}

/* ---------- 5. 合作伙伴卡片Hover增强 ---------- */
.partner-item {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 28px 20px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    position: relative;
    overflow: hidden;
}

.partner-item:nth-child(odd) {
    background: linear-gradient(145deg, #F8FBFF, #EEF4FA);
}

.partner-item:nth-child(even) {
    background: linear-gradient(145deg, #F0F8F5, #E0F2EA);
}

.partner-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-gold);
    transform: scaleX(0);
    transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.partner-item:hover {
    transform: translateY(-8px) scale(1.03);
    box-shadow: 0 14px 36px rgba(0, 77, 153, 0.15);
    border-color: var(--gold);
}

.partner-item:hover::after {
    transform: scaleX(1);
}

.partner-icon {
    font-size: 32px;
    color: var(--primary);
    opacity: 0.7;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.partner-item:hover .partner-icon {
    opacity: 1;
    transform: scale(1.2) rotateZ(-5deg);
    color: var(--gold);
}

.partner-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.partner-item:hover .partner-name {
    color: var(--primary);
}

/* ---------- 6. 统计数字/数据展示Hover效果 ---------- */
.stat-number {
    display: inline-block;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275),
                color 0.3s ease;
    cursor: default;
}

.stat-number:hover {
    transform: scale(1.1) rotateZ(-2deg);
    color: var(--primary);
}

/* stat-unit 也跟随变化 */
.stat-unit {
    font-size: var(--font-base);
    color: var(--text-muted);
    font-weight: 500;
    transition: color 0.3s ease;
}

.stat-number:hover + .stat-unit,
.stat-data:hover .stat-unit {
    color: var(--primary);
}

/* advantage-data 容器hover效果 */
.advantage-data {
    margin-bottom: var(--space-sm);
    transition: transform 0.3s ease;
}

.advantage-card:hover .advantage-data {
    transform: translateY(-2px);
}

/* ---------- 7. 返回顶部按钮全局组件 ---------- */
.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-md);
    z-index: var(--z-sticky);
    border: none;
    outline: none;
    text-decoration: none;
}

.back-to-top i {
    transition: transform 0.3s ease;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--secondary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.back-to-top:hover i {
    transform: translateY(-3px);
}

.back-to-top:active {
    transform: translateY(-2px) scale(0.95);
}

/* 移动端返回顶部按钮位置调整 */
@media (max-width: 768px) {
    .back-to-top {
        bottom: 24px;
        right: 20px;
        width: 42px;
        height: 42px;
        font-size: 18px;
    }
}

/* ---------- 8. 面包屑导航链接hover下划线动效 ---------- */
.breadcrumb a {
    position: relative;
    transition: color 0.25s ease;
    display: inline-block;
}

.breadcrumb a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gold);
    transition: width 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    border-radius: 1px;
}

.breadcrumb a:hover {
    color: var(--gold);
}

.breadcrumb a:hover::after {
    width: 100%;
}

/* 面包屑分隔符样式微调 */
.breadcrumb-sep {
    margin: 0 4px;
    color: rgba(255, 255, 255, 0.5);
    transition: color 0.25s ease;
}

.breadcrumb:hover .breadcrumb-sep {
    color: rgba(212, 168, 75, 0.6);
}

/* ---------- 9. about页面section标题hover微动效 ---------- */
.section-title {
    position: relative;
    transition: transform 0.3s ease;
}

.section-title:hover {
    transform: scale(1.02);
}

/* section-title h2 hover时装饰线动画 */
.section-title h2 {
    transition: color 0.3s ease;
}

.section-title h2:hover {
    color: var(--gold);
}

/* ---------- 10. CTA区域按钮组合hover联动 ---------- */
.cta-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
    position: relative;
    z-index: 2;
}

.cta-actions .btn-cta {
    position: relative;
    overflow: hidden;
}

.cta-actions .btn-cta i {
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.cta-actions .btn-cta:hover i {
    transform: translateX(4px);
}

.cta-actions .btn-secondary {
    position: relative;
}

.cta-actions .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--gold);
    color: var(--gold);
}

/* ---------- 11. 触摸设备适配：active状态反馈 ---------- */
@media (hover: none) and (pointer: coarse) {
    .honor-item:active {
        transform: scale(0.98);
        box-shadow: var(--shadow-md);
    }

    .culture-card:active {
        transform: scale(0.98);
    }

    .partner-item:active {
        transform: scale(0.98);
    }

    .timeline-item:active .timeline-content,
    .timeline-item:active .timeline-card {
        box-shadow: var(--shadow-hover);
    }

    .about-intro-image:active img {
        transform: scale(1.02);
    }

    .back-to-top:active {
        transform: scale(0.95);
    }
}

/* ---------- 12. 减少动效偏好支持 ---------- */
@media (prefers-reduced-motion: reduce) {
    .about-intro-image img,
    .timeline-item,
    .honor-item,
    .honor-item img,
    .culture-card,
    .culture-icon,
    .partner-item,
    .partner-icon,
    .stat-number,
    .back-to-top,
    .breadcrumb a::after,
    .honor-overlay,
    .honor-item::before {
        transition: none !important;
        animation: none !important;
    }

    .honor-item:hover,
    .culture-card:hover,
    .partner-item:hover,
    .timeline-item:hover {
        transform: none !important;
    }

    .honor-item:hover img,
    .about-intro-image:hover img {
        transform: none !important;
    }
}

/* ============================================================
   产品详情页 (products-detail.html) 专用样式
   ============================================================ */

/* ---------- 1. 产品详情页主容器 ---------- */
.product-detail-section {
    background: var(--bg-body);
}

/* ---------- 2. 左侧产品画廊 Swiper 样式 ---------- */
.detail-gallery {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* 主图Swiper容器 */
.productGallerySwiper {
    width: 100%;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    overflow: hidden;
    border: 1px solid var(--border-color);
    background-color: #f8f9fa;
    position: relative;
}

.productGallerySwiper .swiper-slide {
    width: 100%;
    height: 440px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background-color: #f0f2f5;
}

.productGallerySwiper .swiper-slide img {
    width: 100%;
    height: 100%;
    object-fit: contain; /* contain而非cover，保证产品图完整显示 */
    padding: 16px;
    transition: transform 0.3s ease;
}

/* 主图左右箭头 - 覆盖默认swiper样式适配当前页面 */
.productGallerySwiper .swiper-button-prev,
.productGallerySwiper .swiper-button-next {
    width: 44px;
    height: 44px;
    background-color: rgba(255, 255, 255, 0.92);
    color: var(--primary);
    border: 2px solid rgba(0, 77, 153, 0.15);
    border-radius: 50%;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease, opacity 0.3s ease, box-shadow 0.3s ease;
    opacity: 0.7;
    position: absolute !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    margin: 0 !important;
    padding: 0 !important;
    will-change: opacity, background-color;
}

.productGallerySwiper .swiper-button-prev::after,
.productGallerySwiper .swiper-button-next::after {
    font-size: 16px !important;
    font-weight: bold !important;
}

.productGallerySwiper .swiper-button-prev:hover,
.productGallerySwiper .swiper-button-next:hover {
    background-color: var(--gold);
    border-color: var(--gold);
    color: #fff;
    opacity: 1;
    transform: translateY(-50%) scale(1.08) !important; /* 保持垂直居中 + 缩放 */
}

/* 分页器圆点样式 */
.gallery-pagination {
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    gap: 6px;
}

.gallery-bullet {
    width: 10px !important;
    height: 10px !important;
    background-color: rgba(255, 255, 255, 0.5) !important;
    border-radius: 50% !important;
    opacity: 1 !important;
    cursor: pointer;
    transition: all 0.25s ease !important;
    border: none !important;
}

.gallery-bullet-active {
    background-color: var(--gold) !important;
    width: 28px !important;
    border-radius: 5px !important;
}

/* 缩略图条Swiper */
.productThumbSwiper {
    width: 100%;
    padding: 6px 0;
}

.thumb-slide {
    width: auto !important;
    height: 80px;
    cursor: pointer;
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: all 0.25s ease;
    background-color: #f5f5f5;
    opacity: 0.65;
}

.thumb-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.thumb-slide:hover,
.thumb-slide.swiper-slide-thumb-active {
    border-color: var(--primary);
    opacity: 1;
    box-shadow: 0 2px 8px rgba(0, 77, 153, 0.18);
}

/* ---------- 3. 右侧产品信息面板 ---------- */
.detail-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.detail-info > h2 {
    font-size: var(--font-2xl);
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 4px;
    position: relative;
    padding-bottom: 14px;
}

.detail-info > h2::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 48px;
    height: 3px;
    background: var(--gradient-gold);
    border-radius: 2px;
}

/* 产品简介文字 */
.product-intro-text {
    font-size: var(--font-base);
    color: var(--text-body);
    line-height: 1.85;
    margin-bottom: var(--space-sm);
}

/* 参数表格增强（在原有基础上优化） */
.product-params-table {
    width: 100%;
    border-collapse: collapse;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    margin: 0 0 var(--space-md) 0;
}

.product-params-table thead th {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #ffffff;
    font-weight: 600;
    padding: 12px 18px;
    text-align: left;
    font-size: 14px;
    letter-spacing: 0.3px;
}

.product-params-table tbody tr {
    transition: background-color 0.2s ease;
}

.product-params-table tbody tr:nth-child(even) {
    background-color: #F8FAFC;
}

.product-params-table tbody tr:hover {
    background-color: rgba(0, 77, 153, 0.04);
}

.product-params-table tbody td,
.product-params-table tbody th[scope="row"] {
    padding: 11px 18px;
    border-bottom: 1px solid #EEF0F4;
    font-size: 14px;
    color: var(--text-body);
}

.product-params-table tbody th[scope="row"] {
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
    min-width: 110px;
    background-color: #FAFBFC;
}

.product-params-table tbody tr:last-child td,
.product-params-table tbody tr:last-child th[scope="row"] {
    border-bottom: none;
}

/* CTA操作按钮区 */
.product-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
    margin-top: var(--space-sm);
    padding-top: var(--space-md);
    border-top: 1px dashed var(--border-color);
}

.product-actions .btn-cta {
    padding: 13px 32px;
    font-size: 15px;
}

.product-actions .btn-secondary {
    padding: 13px 28px;
    font-size: 15px;
    border-color: var(--border-color);
    color: var(--text-secondary);
    background: transparent;
}

.product-actions .btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(0, 77, 153, 0.04);
}

/* ---------- 4. 产品详细介绍区域 - 全宽背景 ---------- */
.product-description {
    width: 100vw;                          /* 视口宽度 */
    margin-left: calc(-50vw + 50%);        /* 居中偏移实现全宽 */
    padding: 80px 0;                       /* 上下内边距 */
    background: linear-gradient(
        to bottom,
        #f8fafc 0%,    /* 浅灰蓝 */
        #f1f5f9 50%,   /* 稍深 */
        #e2e8f0 100%   /* 更深 */
    );
    box-sizing: border-box;
}

/* 内部内容容器 - 保持居中 */
.product-description > .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.detail-description {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--space-lg) 0;
}

.detail-description p {
    font-size: var(--font-base);
    color: var(--text-body);
    line-height: 2;
    margin-bottom: var(--space-md);
    text-align: justify;
}

/* 描述区子标题 */
.desc-subheading {
    font-size: var(--font-xl);
    color: var(--primary);
    font-weight: 700;
    margin-top: var(--space-lg);
    margin-bottom: var(--space-sm);
    padding-left: var(--space-md);
    border-left: 4px solid var(--gold);
    line-height: 1.4;
}

.desc-subheading:first-of-type {
    margin-top: var(--space-md);
}

/* 特性列表 */
.feature-list {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-md) 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: var(--font-base);
    color: var(--text-body);
    line-height: 1.75;
    padding: 12px 16px;
    background: #FFFFFF;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(212, 168, 75, 0.12);
    transition: all 0.25s ease;
}

.feature-list li:hover {
    border-color: var(--gold);
    background: linear-gradient(135deg, rgba(212, 168, 75, 0.04), transparent);
    transform: translateX(4px);
    box-shadow: var(--shadow-sm);
}

.feature-list li i {
    color: var(--accent);
    font-size: 16px;
    margin-top: 4px;
    flex-shrink: 0;
}

.feature-list li strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* ---------- 5. 相关产品推荐区域 ---------- */
.related-products {
    background: linear-gradient(180deg, #F0F6FC 0%, #E8F2F8 100%);
}

.section-subtitle-lg {
    font-size: var(--font-xl) !important;
    font-weight: 700 !important;
    color: var(--primary) !important;
    letter-spacing: 1px;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.related-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    display: flex;
    flex-direction: column;
    padding: 0;
}

.related-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}

.related-image {
    width: 100%;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background-color: #f5f5f5;
}

.related-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.related-card:hover .related-image img {
    transform: scale(1.06);
}

.related-info {
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}

.related-info h4 {
    font-size: var(--font-md);
    color: var(--text-primary);
    font-weight: 600;
    transition: color 0.25s ease;
}

.related-card:hover .related-info h4 {
    color: var(--primary);
}

.related-info p {
    font-size: var(--font-sm);
    color: var(--text-muted);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 4px;
    flex: 1;
}

/* 相关卡片按钮 */
.related-card .btn-secondary {
    display: inline-flex;
    align-self: flex-start;
    margin-top: auto;
    padding: 8px 20px;
    font-size: 13px;
    color: var(--primary) !important;
    border-color: var(--primary) !important;
    background: transparent !important;
    border-radius: var(--radius-sm) !important;
    transition: all 0.25s ease !important;
}

.related-card .btn-secondary:hover {
    background: var(--primary) !important;
    color: #ffffff !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 77, 153, 0.25) !important;
}

/* ---------- 6. banner-overlay-dark 定义 ---------- */
.banner-overlay-dark {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg,
        rgba(0, 34, 68, 0.75) 0%,
        rgba(0, 68, 136, 0.55) 50%,
        rgba(0, 119, 204, 0.35) 100%
    );
    z-index: 1;
    pointer-events: none;
}

/* ============================================================
   产品详情页响应式适配
   ============================================================ */

/* 平板端：992px以下 */
@media (max-width: 992px) {
    /* 左右布局变单列 */
    .detail-layout {
        grid-template-columns: 1fr !important;
        gap: var(--space-xl) !important;
    }

    .detail-gallery {
        order: -1; /* 图片在上 */
    }

    /* 主图高度调整 */
    .productGallerySwiper .swiper-slide {
        height: 380px;
    }

    /* 相关产品变为3列 */
    .related-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-md);
    }
}

/* 移动端：768px以下 */
@media (max-width: 768px) {
    /* Banner高度与其它页面一致 */
    .page-banner {
        height: 200px;
    }

    /* 产品详细介绍全宽背景 - 移动端减小padding */
    .product-description {
        padding: 50px 0;
    }

    /* 主图进一步缩小 */
    .productGallerySwiper .swiper-slide {
        height: 300px;
    }

    .productGallerySwiper .swiper-slide img {
        padding: 12px;
    }

    /* 箭头尺寸缩小 */
    .productGallerySwiper .swiper-button-prev,
    .productGallerySwiper .swiper-button-next {
        width: 36px;
        height: 36px;
    }

    .productGallerySwiper .swiper-button-prev { left: 8px; }
    .productGallerySwiper .swiper-button-next { right: 8px; }

    /* 缩略图更小 */
    .thumb-slide {
        height: 60px;
    }

    /* 产品标题字号 */
    .detail-info > h2 {
        font-size: var(--font-xl);
    }

    /* CTA按钮纵向排列 */
    .product-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .product-actions .btn-cta,
    .product-actions .btn-secondary {
        width: 100%;
        justify-content: center;
        text-align: center;
    }

    /* 描述区子标题 */
    .desc-subheading {
        font-size: var(--font-lg);
        padding-left: var(--space-sm);
    }

    /* 特性列表间距缩小 */
    .feature-list {
        gap: 10px;
    }

    .feature-list li {
        padding: 10px 12px;
        font-size: var(--font-sm);
    }

    /* 相关产品2列 */
    .related-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .related-info {
        padding: var(--space-sm);
    }

    .related-info h4 {
        font-size: var(--font-base);
    }
}

/* 小屏手机：480px以下 */
@media (max-width: 480px) {
    .page-banner {
        height: 170px;
    }

    .productGallerySwiper .swiper-slide {
        height: 240px;
    }

    .thumb-slide {
        height: 52px;
    }

    .product-params-table thead th,
    .product-params-table tbody td,
    .product-params-table tbody th[scope="row"] {
        padding: 8px 12px;
        font-size: 13px;
    }

    .detail-description p {
        font-size: var(--font-sm);
        line-height: 1.85;
    }

    .desc-subheading {
        font-size: var(--font-md);
    }

    /* 相关产品单列 */
    .related-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================================
   Task 4 Fix: 消除产品详情页空白区域 - 压缩各模块间距
   ============================================================ */

/* 1. 产品画廊容器 - 减少底部padding和margin */
.detail-gallery,
.productGallerySwiper {
    padding-bottom: 20px !important;
    margin-bottom: 15px !important;
}

/* 2. 缩略图条 - 减少与主图间距 */
.productThumbSwiper {
    margin-top: 10px !important;
}

/* 3. 产品信息面板 - 减少顶部间距 */
.detail-info {
    padding-top: 25px !important;
}

/* 4. 产品详细介绍区 - 减少上下padding（从80px减至50px） */
.product-description {
    padding: 50px 0 !important;
}

/* 5. 相关产品推荐 - 减少顶部margin和padding */
.related-products {
    margin-top: 35px !important;
    padding: 50px 0 !important;
}

/* 6. detail-layout容器 - 减少底部大间距 */
.detail-layout {
    margin-bottom: 40px !important;  /* 从60px减小 */
}

/* ========== 新闻详情页面样式优化 ========== */
.article-content {
    line-height: 1.9;
    font-size: 16px;
    color: #333333;
}

.article-content p {
    margin-bottom: 24px;
    text-indent: 2em;
}

.article-content h3 {
    font-size: 20px;
    font-weight: 700;
    color: #004D99;
    margin: 32px 0 20px 0;
    padding-bottom: 10px;
    border-bottom: 2px solid #E8F0F5;
}

.article-content blockquote {
    margin: 24px 0;
    padding: 20px 28px;
    background: linear-gradient(145deg, #F5F7FA, #E8F0F5);
    border-left: 4px solid #004D99;
    border-radius: 0 8px 8px 0;
    font-style: italic;
    color: #555555;
}

.article-content blockquote cite {
    display: block;
    margin-top: 12px;
    font-style: normal;
    color: #888888;
    font-size: 14px;
}

.article-content ul {
    margin: 20px 0 24px 0;
    padding-left: 32px;
}

.article-content li {
    margin-bottom: 12px;
    line-height: 1.8;
}

.article-content figure {
    margin: 28px 0;
}

.article-content figcaption {
    text-align: center;
    margin-top: 12px;
    color: #666666;
    font-size: 14px;
}

.article-header {
    text-align: center;
    margin-bottom: 40px;
}

.article-header h2 {
    font-size: 28px;
    font-weight: 700;
    color: #1A1A2E;
    margin-bottom: 20px;
    line-height: 1.4;
}

.article-meta {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 24px;
    color: #666666;
    font-size: 14px;
}

.article-meta time,
.article-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.article-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    border-top: 1px solid #E8F0F5;
    border-bottom: 1px solid #E8F0F5;
    margin: 32px 0;
}

.article-nav-prev,
.article-nav-next {
    flex: 0 0 45%;
}

.nav-divider {
    width: 1px;
    height: 40px;
    background: #E8F0F5;
}

.nav-label {
    display: block;
    font-size: 12px;
    color: #999999;
    margin-bottom: 8px;
}

.article-nav-prev a,
.article-nav-next a {
    color: #333333;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: color 0.3s ease;
}

.article-nav-prev a:hover,
.article-nav-next a:hover {
    color: #004D99;
}