* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Source Han Sans CN", Arial, sans-serif;
  color: #333; line-height: 1.6; background: #fff; font-size: 14px;
  overflow-x: hidden;
}
a { color: #333; text-decoration: none; transition: color .3s; }
a:hover { color: #0d47a1; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ========== 动画关键帧 ========== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

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

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-60px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(60px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(60px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes zoomIn {
  from {
    opacity: 0;
    transform: scale(0.85);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes zoomOut {
  from {
    opacity: 0;
    transform: scale(1.1);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

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

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

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

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

@keyframes bounceIn {
  0% { opacity: 0; transform: scale(0.3); }
  50% { opacity: 1; transform: scale(1.05); }
  70% { transform: scale(0.9); }
  100% { transform: scale(1); }
}

@keyframes rotate3d {
  0% { transform: perspective(1000px) rotateY(0deg); }
  100% { transform: perspective(1000px) rotateY(360deg); }
}

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

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

@keyframes blink {
  50% { border-color: transparent; }
}

@keyframes wave {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(15deg); }
  75% { transform: rotate(-15deg); }
}

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

@keyframes glow {
  0%, 100% { box-shadow: 0 0 20px rgba(13, 71, 161, 0.3); }
  50% { box-shadow: 0 0 40px rgba(13, 71, 161, 0.6); }
}

@keyframes borderSlide {
  0% { clip-path: polygon(0 0, 0 0, 0 100%, 0 100%); }
  100% { clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%); }
}

/* 滚动动画类 */
.animate-on-scroll {
  opacity: 0;
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.fade-in { animation-name: fadeIn; }
.animate-on-scroll.fade-in-up { animation-name: fadeInUp; }
.animate-on-scroll.fade-in-down { animation-name: fadeInDown; }
.animate-on-scroll.slide-in-left { animation-name: slideInLeft; }
.animate-on-scroll.slide-in-right { animation-name: slideInRight; }
.animate-on-scroll.slide-in-up { animation-name: slideInUp; }
.animate-on-scroll.zoom-in { animation-name: zoomIn; }
.animate-on-scroll.zoom-out { animation-name: zoomOut; }
.animate-on-scroll.bounce-in { animation-name: bounceIn; }

.animate-on-scroll.revealed {
  opacity: 1;
  transform: none;
  animation: none;
}

.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }
.delay-500 { transition-delay: 500ms; }
.delay-600 { transition-delay: 600ms; }

.float-animation {
  animation: float 4s ease-in-out infinite;
}

/* 图片悬停效果 */
.img-hover-zoom {
  overflow: hidden;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.img-hover-zoom img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.img-hover-zoom:hover img {
  transform: scale(1.2);
}

.img-hover-fade {
  position: relative;
  overflow: hidden;
}

.img-hover-fade::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(13, 71, 161, 0.6);
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 1;
}

.img-hover-fade:hover::before {
  opacity: 1;
}

.img-hover-fade img {
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.img-hover-fade:hover img {
  transform: scale(1.1);
}

.img-hover-flip {
  perspective: 1000px;
}

.img-hover-flip-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.6s;
  transform-style: preserve-3d;
}

.img-hover-flip:hover .img-hover-flip-inner {
  transform: rotateY(180deg);
}

.img-hover-flip-front,
.img-hover-flip-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
}

.img-hover-flip-back {
  transform: rotateY(180deg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.img-hover-shine {
  position: relative;
  overflow: hidden;
}

.img-hover-shine::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    to right,
    rgba(255,255,255,0) 0%,
    rgba(255,255,255,0.3) 50%,
    rgba(255,255,255,0) 100%
  );
  transform: skewX(-25deg);
  transition: left 0.6s ease;
  z-index: 2;
}

.img-hover-shine:hover::after {
  left: 150%;
}

/* ========== 顶部信息栏 ========== */
.top-bar {
  background: #0a2a5a; color: #fff; font-size: 13px; border-bottom: 1px solid #0d47a1;
}
.top-bar .welcome-text {
  font-size: 18px;
  font-weight: bold;
  color: #ffd54f;
}
.top-bar-inner { display: flex; justify-content: space-between; align-items: center; padding: 8px 0; flex-wrap: wrap; }
.top-bar a { color: #fff; margin-left: 15px; }
.top-bar a:hover { color: #ffd54f; }
.top-bar-right { display: flex; align-items: center; gap: 15px; }
.top-bar .hotline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #ffd54f;
  font-weight: bold;
  font-size: 14px;
  padding: 4px 12px;
  background: rgba(255,213,79,0.15);
  border-radius: 20px;
  border: 1px solid rgba(255,213,79,0.3);
  transition: all 0.3s;
}
.top-bar .hotline:hover {
  background: rgba(255,213,79,0.25);
  color: #fff;
  transform: scale(1.02);
}
.top-bar .hotline::before {
  content: '';
  width: 18px;
  height: 18px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffd54f' stroke-width='2'%3E%3Cpath d='M22 16.92v3a2 2 0 0 1-2.18 2 19.79 19.79 0 0 1-8.63-3.07 19.5 19.5 0 0 1-6-6 19.79 19.79 0 0 1-3.07-8.67A2 2 0 0 1 4.11 2h3a2 2 0 0 1 2 1.72 12.84 12.84 0 0 0 .7 2.81 2 2 0 0 1-.45 2.11L8.09 9.91a16 16 0 0 0 6 6l1.27-1.27a2 2 0 0 1 2.11-.45 12.84 12.84 0 0 0 2.81.7A2 2 0 0 1 22 16.92z'/%3E%3C/svg%3E") no-repeat center center;
  background-size: contain;
}
.top-bar .hotline-text {
  white-space: nowrap;
}

/* 语言下拉菜单 */
.lang-switch {
  position: relative;
  cursor: pointer;
  user-select: none;
}
.lang-current {
  background: transparent;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 4px;
  color: #fff;
  padding: 4px 10px;
  font-size: 13px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all .2s;
}
.lang-current:hover {
  border-color: #ffd54f;
  background: rgba(255,213,79,.08);
}
.lang-current .lang-flag { font-size: 14px; }
.lang-current .lang-arrow {
  font-size: 10px;
  transition: transform .2s;
  opacity: .7;
}
.lang-switch:hover .lang-arrow { transform: rotate(180deg); }

.lang-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  min-width: 150px;
  background: #fff;
  border-radius: 6px;
  box-shadow: 0 8px 24px rgba(13,71,161,.2);
  list-style: none;
  margin: 0;
  padding: 6px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: all .2s ease;
  z-index: 1000;
}
.lang-switch:hover .lang-dropdown,
.lang-switch:focus-within .lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.lang-dropdown::before {
  content: '';
  position: absolute;
  top: -6px;
  right: 14px;
  width: 12px;
  height: 12px;
  background: #fff;
  transform: rotate(45deg);
}
.lang-dropdown li {
  position: relative;
  border-radius: 4px;
}
.lang-dropdown li a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 12px;
  color: #333;
  text-decoration: none;
  font-size: 13px;
  border-radius: 4px;
  margin: 0;
  transition: background .15s;
}
.lang-dropdown li a .lang-flag { font-size: 16px; }
.lang-dropdown li a > .lang-flag:first-child { flex: 0 0 auto; }
.lang-dropdown li a span:not(.lang-flag):not(.lang-check) { flex: 1; text-align: left; }
.lang-dropdown li a:hover {
  background: #f0f7ff;
  color: #0d47a1;
}
.lang-dropdown li.lang-active a {
  background: linear-gradient(135deg, #0d47a1, #1976d2);
  color: #fff;
}
.lang-dropdown li.lang-active a:hover {
  background: linear-gradient(135deg, #0a2a5a, #0d47a1);
}
.lang-check { color: #ffd54f; font-size: 12px; font-weight: bold; }
.lang-switch a.active { color: #ffd54f; font-weight: bold; }

/* ========== Header / 导航 ========== */
.site-header {
  background: rgba(255,255,255,0.95); border-bottom: 3px solid #0d47a1; 
  box-shadow: 0 2px 8px rgba(0,0,0,.05); position: sticky; top: 0; z-index: 999;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}
.site-header.scrolled {
  padding: 8px 0;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}
.header-inner { display: flex; align-items: center; padding: 14px 0; flex-wrap: wrap; gap: 16px; }
.logo { display: flex; align-items: center; gap: 12px; min-width: 200px; }
.logo-link { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.logo-image { max-height: 78px; max-width: 270px; object-fit: contain; }
.logo-icon {
  width: 52px; height: 52px; background: linear-gradient(135deg, #0d47a1, #1976d2);
  color: #fff; display: flex; align-items: center; justify-content: center; font-size: 22px;
  font-weight: bold; border-radius: 6px; letter-spacing: 2px;
  transition: transform 0.3s ease;
}
.logo:hover .logo-icon { transform: scale(1.05) rotate(5deg); }
.logo-text h1 { font-size: 22px; color: #0d47a1; font-weight: bold; margin: 0; letter-spacing: 1px; }
.logo-text p { font-size: 12px; color: #888; margin: 4px 0 0; }

.main-nav { flex: 1; display: flex; justify-content: flex-end; }
.main-nav ul { display: flex; flex-wrap: wrap; }
.main-nav li { position: relative; }
.main-nav li a {
  display: block; padding: 10px 18px; font-size: 15px; color: #333; font-weight: 500;
  border-radius: 4px; transition: all .3s;
}
.main-nav li a:hover { 
  color: #0d47a1; 
  transform: translateY(-2px);
}
.main-nav li a.active { background: #0d47a1; color: #fff; }

.main-nav li::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 3px;
  background: #c62828;
  transition: all 0.3s ease;
  transform: translateX(-50%);
}
.main-nav li:hover::after { width: 60%; }

.mobile-menu-btn {
  display: none;
  background: #0d47a1;
  border: none;
  color: #fff;
  cursor: pointer;
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  display: none;
  align-items: center;
  gap: 8px;
}
.mobile-menu-btn::before {
  content: '菜单';
  font-size: 14px;
}
.mobile-menu-btn .menu-icon {
  display: inline-block;
  width: 20px;
  height: 16px;
  position: relative;
}
.mobile-menu-btn .menu-icon span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: #fff;
  border-radius: 1px;
  transition: all 0.3s ease;
}
.mobile-menu-btn .menu-icon span:nth-child(1) { top: 0; }
.mobile-menu-btn .menu-icon span:nth-child(2) { top: 7px; }
.mobile-menu-btn .menu-icon span:nth-child(3) { bottom: 0; }

@media (max-width: 900px) {
  .mobile-menu-btn { display: flex; }
  .main-nav {
    display: none;
    width: 100%;
    background: #fff;
    padding: 10px;
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  }
  .main-nav.mobile-active { display: block; }
  .main-nav ul { flex-direction: column; }
  .main-nav li { margin: 5px 0; }
  .article-header, .page-header {
    height: auto;
    min-height: 200px;
    padding: 60px 0;
  }
  .article-header h1 { font-size: 28px; }
  .page-header h1 { font-size: 26px; }
  .article-layout, .list-layout { grid-template-columns: 1fr; }
  .article-sidebar { display: none; }
  .list-sidebar { order: 0; }
}

/* ========== 轮播图 Hero Slider ========== */
.hero {
  position: relative; min-height: 720px; overflow: hidden;
}

.hero-slider {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 720px;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateX(100%) scale(0.95);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), 
              visibility 0.8s ease,
              transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-slide.active {
  opacity: 1;
  visibility: visible;
  transform: translateX(0) scale(1);
}

.hero-slide.slide-out-left {
  transform: translateX(-100%) scale(0.95);
  opacity: 0;
}

.hero-slide.slide-out-right {
  transform: translateX(100%) scale(0.95);
  opacity: 0;
}

.hero-slide.slide-in-left {
  transform: translateX(-100%) scale(0.95);
  opacity: 0;
}

.hero-slide.slide-in-right {
  transform: translateX(100%) scale(0.95);
  opacity: 0;
}

.hero-bg-image {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  transform: scale(1.1);
  transition: transform 10s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-slide.active .hero-bg-image {
  transform: scale(1);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,42,90,0.9) 0%, rgba(13,71,161,0.85) 50%, rgba(21,101,192,0.8) 100%);
  z-index: 1;
}

.hero-slide.bg-1 .hero-overlay {
  background: linear-gradient(135deg, rgba(10,42,90,0.92) 0%, rgba(13,71,161,0.88) 50%, rgba(21,101,192,0.85) 100%);
}

.hero-slide.bg-2 .hero-overlay {
  background: linear-gradient(135deg, rgba(27,58,92,0.92) 0%, rgba(44,82,130,0.88) 50%, rgba(66,153,225,0.85) 100%);
}

.hero-slide.bg-3 .hero-overlay {
  background: linear-gradient(135deg, rgba(45,27,78,0.92) 0%, rgba(74,20,140,0.88) 50%, rgba(124,77,255,0.85) 100%);
}

.hero-slide::before {
  content: ''; position: absolute; inset: 0; z-index: 2;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255,255,255,.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255,255,255,.1) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(255,255,255,.08) 0%, transparent 70%);
  opacity: 0.7;
}

.hero-slide::after {
  content: '';
  position: absolute;
  inset: 0; z-index: 2;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-inner {
  position: relative; z-index: 3; padding: 50px 0 80px; display: grid;
  grid-template-columns: 1.2fr 1fr; gap: 60px; align-items: center;
}

.hero-tag {
  display: inline-block;
  background: rgba(255,213,79,0.2);
  border: 1px solid rgba(255,213,79,0.4);
  color: #ffd54f;
  padding: 8px 22px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: 2px;
  text-transform: uppercase;
  animation: fadeInUp 0.6s ease;
}

.hero-left h2 {
  font-size: 58px; margin-bottom: 28px; font-weight: bold; line-height: 1.15;
  background: linear-gradient(135deg, #fff, #e3f2fd, #bbdefb);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientText 4s ease infinite;
}

.hero-left .subtitle {
  font-size: 22px; color: #e3f2fd; margin-bottom: 28px;
  line-height: 1.6;
}

.hero-features { display: flex; flex-wrap: wrap; gap: 20px; margin-bottom: 28px; }
.hero-feature {
  background: rgba(255,255,255,.08); padding: 16px 26px; border-radius: 10px;
  border: 1px solid rgba(255,255,255,.12); font-size: 15px;
  backdrop-filter: blur(10px);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  transform: translateY(20px);
  opacity: 0;
}

.hero-slide.active .hero-feature {
  animation: fadeInUp 0.6s ease forwards;
}

.hero-feature:nth-child(2) { animation-delay: 0.2s; }
.hero-feature:nth-child(3) { animation-delay: 0.4s; }

.hero-feature:hover {
  background: rgba(255,255,255,.15);
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}
.hero-feature strong { display: block; font-size: 24px; color: #ffd54f; }

.hero-buttons { display: flex; gap: 20px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 16px 40px; border-radius: 8px; font-size: 17px;
  font-weight: 600; transition: all .3s; cursor: pointer; border: 2px solid transparent;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.2) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.8s ease;
}

.btn:hover::before {
  transform: translateX(100%);
}

.btn-primary {
  background: linear-gradient(135deg, #c62828, #d32f2f);
  color: #fff; border-color: #c62828;
  box-shadow: 0 6px 20px rgba(198, 40, 40, 0.4);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #b71c1c, #c62828);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(198, 40, 40, 0.5);
}

.btn-outline {
  background: transparent; color: #fff; border-color: rgba(255,255,255,.7);
}
.btn-outline:hover {
  background: #fff; color: #0d47a1; border-color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(255,255,255,0.3);
}

.hero-right {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
}

.hero-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.hero-card {
  background: rgba(255,255,255,.06); padding: 32px; border-radius: 16px;
  border: 1px solid rgba(255,255,255,.08); text-align: center;
  backdrop-filter: blur(15px);
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  transform: translateY(30px);
  opacity: 0;
  cursor: pointer;
}

.hero-slide.active .hero-card {
  animation: fadeInUp 0.6s ease forwards;
}

.hero-card:nth-child(1) { animation-delay: 0.1s; }
.hero-card:nth-child(2) { animation-delay: 0.25s; }
.hero-card:nth-child(3) { animation-delay: 0.4s; }
.hero-card:nth-child(4) { animation-delay: 0.55s; }

.hero-card:hover {
  background: rgba(255,255,255,.15);
  transform: translateY(-12px) scale(1.03);
  border-color: rgba(255,255,255,.3);
  box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

.hero-card .icon {
  font-size: 40px; margin-bottom: 18px; color: #ffd54f;
  animation: float 4s ease-in-out infinite;
}

.hero-card:nth-child(2) .icon { animation-delay: 0.5s; }
.hero-card:nth-child(3) .icon { animation-delay: 1s; }
.hero-card:nth-child(4) .icon { animation-delay: 1.5s; }

.hero-card h3 { font-size: 18px; margin-bottom: 10px; color: #fff; }
.hero-card p { font-size: 14px; color: #bbdefb; line-height: 1.6; }

/* 轮播指示点 */
.hero-dots {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 16px;
  z-index: 10;
}

.hero-dot {
  width: 16px;
  height: 16px;
  background: rgba(255,255,255,.2);
  border: 2px solid rgba(255,255,255,.4);
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.hero-dot::before {
  content: '';
  position: absolute;
  inset: 2px;
  background: rgba(255,255,255,.5);
  border-radius: 50%;
  transform: scale(0);
  transition: transform 0.3s ease;
}

.hero-dot:hover {
  background: rgba(255,255,255,.4);
  transform: scale(1.2);
}

.hero-dot:hover::before {
  transform: scale(1);
}

.hero-dot.active {
  background: #ffd54f;
  border-color: #ffd54f;
  transform: scale(1.4);
  box-shadow: 0 0 15px rgba(255,213,79,0.6);
  animation: pulse 2s ease-in-out infinite;
}

/* ========== Section common ========== */
.section { padding: 100px 0; }
.section-title { text-align: center; margin-bottom: 60px; }
.section-title h2 {
  font-size: 40px; color: #0d47a1; font-weight: bold; margin: 0 0 16px;
  letter-spacing: 3px;
  position: relative;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, #c62828, #0d47a1);
  border-radius: 2px;
}

.section-title .en {
  display: block; color: #aaa; font-size: 14px; letter-spacing: 6px; text-transform: uppercase;
  margin-top: 8px;
}
.section-title p { color: #666; margin-top: 20px; font-size: 16px; line-height: 1.8; }

/* 业务板块 */
.business { background: linear-gradient(180deg, #f0f4f8, #fff); }
.business-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.business-item {
  background: #fff; padding: 40px 28px; border-radius: 16px; text-align: center;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1); border: 1px solid #eee;
  position: relative;
  overflow: hidden;
}

.business-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, #0d47a1, #1976d2);
  transform: scaleX(0);
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  transform-origin: left;
}

.business-item:hover::before {
  transform: scaleX(1);
}

.business-item:hover {
  transform: translateY(-15px);
  box-shadow: 0 25px 50px rgba(13,71,161,.18);
  border-color: #0d47a1;
}

.business-icon {
  width: 120px; height: 120px; background: linear-gradient(135deg, #e3f2fd, #bbdefb);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 56px; color: #0d47a1; margin: 0 auto 28px;
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.business-item:hover .business-icon {
  background: linear-gradient(135deg, #0d47a1, #1976d2);
  color: #fff;
  transform: rotateY(360deg);
}

.business-item h3 { font-size: 20px; margin-bottom: 14px; color: #333; font-weight: 600; }
.business-item p { color: #888; font-size: 14px; line-height: 1.8; min-height: 80px; }
.business-item a {
  display: inline-block;
  margin-top: 20px;
  color: #0d47a1;
  font-size: 15px;
  font-weight: 600;
  transition: all 0.3s ease;
  position: relative;
}

.business-item a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #c62828;
  transition: width 0.3s ease;
}

.business-item a:hover {
  color: #c62828;
  padding-left: 10px;
}

.business-item a:hover::after {
  width: 100%;
}

/* 新闻/文章列表 */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.news-card {
  background: #fff; border: 1px solid #e8e8e8; border-radius: 16px;
  overflow: hidden; transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex; flex-direction: column; height: 100%;
}
.news-card:hover {
  transform: translateY(-12px);
  box-shadow: 0 20px 40px rgba(0,0,0,.12);
  border-color: #0d47a1;
}
.news-card-img {
  height: 220px; background: linear-gradient(135deg, #e3f2fd, #bbdefb);
  display: flex; align-items: center; justify-content: center;
  color: #0d47a1; font-size: 64px; overflow: hidden;
  position: relative;
}
.news-card-img.has-image { background: #f5f5f5; color: #ccc; font-size: 0; }
.news-card-img img { width: 100%; height: 100%; object-fit: cover; }

.news-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 50%, rgba(0,0,0,0.7));
  opacity: 0;
  transition: opacity 0.4s ease;
}

.news-card:hover .news-card-img::after {
  opacity: 1;
}
.news-card:hover .news-card-img img {
  transform: scale(1.08);
}
.news-card-img img { transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1); }
.no-cover-placeholder { font-size: 18px; color: #0d47a1; font-weight: 600; }

.news-card-body { padding: 28px; flex: 1; display: flex; flex-direction: column; }
.news-card-date { color: #0d47a1; font-size: 13px; font-weight: 600; margin-bottom: 14px; }
.news-card-body h3 {
  font-size: 18px; color: #222; margin-bottom: 14px; line-height: 1.5;
  overflow: hidden; text-overflow: ellipsis; display: -webkit-box;
  -webkit-line-clamp: 2; -webkit-box-orient: vertical;
}

.news-card-body p {
  color: #888; font-size: 14px; line-height: 1.7;
  overflow: hidden; text-overflow: ellipsis;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  margin-top: auto;
}
.news-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
  height: 100%;
}
.news-card-link:hover .news-card-body h3 {
  color: #c62828;
}

/* 案例 / 产品 */
.cases { background: #f5f7fa; }
.case-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.case-item {
  background: #fff; border-radius: 16px; overflow: hidden;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid #eee;
}
.case-item-link {
  display: block;
  text-decoration: none;
  color: inherit;
}
.case-item-link:hover .case-item h4 {
  color: #c62828;
}
.case-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 18px 40px rgba(0,0,0,.15);
}
.case-img {
  aspect-ratio: 4/3; background: linear-gradient(135deg, #0d47a1, #1976d2);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 24px; font-weight: bold; text-align: center;
  padding: 10px;
  overflow: hidden;
  position: relative;
}
.case-img img {
  width: 100%; height: 100%; object-fit: cover;
  display: block;
}
.case-item img { width: 100%; height: 100%; object-fit: cover; }

.case-img::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(13, 71, 161, 0.75);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.case-img::after {
  content: '→';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  color: #fff;
  font-size: 40px;
  font-weight: bold;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.case-item:hover .case-img::before { opacity: 1; }
.case-item:hover .case-img::after { transform: translate(-50%, -50%) scale(1); }

.case-item h4 {
  padding: 22px; text-align: center; font-size: 16px; color: #333; font-weight: 600;
  border-top: 1px solid #eee; margin: 0;
  transition: color 0.3s ease;
}

.case-item:hover h4 { color: #0d47a1; }

/* 资质证书 */
.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.cat-rec-block { margin-bottom: 36px; }
.cat-rec-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; padding-bottom: 8px; border-bottom: 2px solid #e6a23c; }
.cat-rec-header h3 { margin: 0; font-size: 22px; color: #1a365d; font-weight: 600; }
.cat-rec-more { color: #e6a23c; text-decoration: none; font-size: 14px; font-weight: 500; transition: color 0.2s; }
.cat-rec-more:hover { color: #b8821f; }
.cat-rec-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.cat-rec-card { display: block; text-decoration: none; color: inherit; background: #fff; border-radius: 12px; overflow: hidden; transition: transform 0.3s, box-shadow 0.3s; border: 1px solid #f0f0f0; }
.cat-rec-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,0.1); }
.cat-rec-img { width: 100%; aspect-ratio: 16/10; background: #f5f7fa; overflow: hidden; display: flex; align-items: center; justify-content: center; }
.cat-rec-img img { width: 100%; height: 100%; object-fit: cover; }
.cat-rec-img .placeholder { font-size: 48px; }
.cat-rec-title { padding: 12px 14px; font-size: 15px; font-weight: 500; color: #303133; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
@media (max-width: 768px) {
  .cat-rec-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .cat-rec-header h3 { font-size: 18px; }
}
.cert-item {
  background: #fff; border-radius: 16px; overflow: hidden;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid #eee;
}
.cert-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 18px 40px rgba(0,0,0,.15);
}
.cert-img {
  aspect-ratio: 4/3; background: linear-gradient(135deg, #e3f2fd, #bbdefb);
  display: flex; align-items: center; justify-content: center;
  color: #0d47a1; font-size: 48px; overflow: hidden;
  position: relative;
}
.cert-img img {
  width: 100%; height: 100%; object-fit: cover;
  display: block;
}
.cert-img::after {
  content: '🔍';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%) scale(0);
  font-size: 32px;
  z-index: 2;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.cert-item:hover .cert-img::after {
  transform: translate(-50%, -50%) scale(1);
}
.cert-icon {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-size: 48px;
}
.cert-item h4 {
  padding: 20px; text-align: center; font-size: 16px; color: #333; font-weight: 600;
  border-top: 1px solid #eee; margin: 0;
  transition: color 0.3s ease;
}
.cert-item p {
  padding: 0 20px 20px; text-align: center; font-size: 13px; color: #888; margin: 0;
  line-height: 1.6;
}
.cert-item:hover h4 { color: #0d47a1; }
.cert-item-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.gallery-detail-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
}

.gallery-summary {
  font-size: 16px;
  color: #666;
  line-height: 1.8;
  margin-bottom: 24px;
  padding: 20px;
  background: #f8f9fa;
  border-radius: 12px;
}

.gallery-content {
  font-size: 15px;
  line-height: 1.8;
  color: #444;
  margin-bottom: 30px;
}

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

.gallery-content img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
}

.gallery-stats {
  margin-bottom: 30px;
}

.stat-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: #e3f2fd;
  color: #0d47a1;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
}

.gallery-waterfall {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  width: 100%;
}

@media (max-width: 900px) {
  .gallery-waterfall {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

@media (max-width: 600px) {
  .gallery-waterfall {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

.gallery-item-wrapper {
  padding: 0;
}

.gallery-item {
  position: relative;
  width: 100%;
  aspect-ratio: 4/3;
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.12);
}

.gallery-item-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.gallery-item.loaded .gallery-item-placeholder {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.gallery-loading-icon {
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-ring {
  animation: loading-dash 1.5s ease-in-out infinite;
}

@keyframes loading-dash {
  0% { stroke-dashoffset: 88; }
  50% { stroke-dashoffset: 22; }
  100% { stroke-dashoffset: 88; }
}

.gallery-item-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: opacity 0.4s ease, transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 0;
}

.gallery-item.loaded .gallery-item-img {
  opacity: 1;
}

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

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 2;
}

.gallery-item:hover .gallery-item-overlay {
  background: rgba(0,0,0,0.4);
  opacity: 1;
}

.gallery-overlay-icon {
  font-size: 32px;
  transform: scale(0);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-item:hover .gallery-overlay-icon {
  transform: scale(1);
}

.gallery-overlay-index {
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  background: rgba(255,255,255,0.2);
  padding: 4px 12px;
  border-radius: 12px;
}

.gallery-sidebar {
  padding: 24px;
  background: #f8f9fa;
  border-radius: 12px;
  position: sticky;
  top: 100px;
  height: fit-content;
}

.gallery-sidebar h3 {
  color: #0d47a1;
  font-size: 18px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid #0d47a1;
}

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.9);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.lightbox.visible {
  opacity: 1;
  visibility: visible;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 48px;
  height: 48px;
  background: rgba(255,255,255,0.2);
  border: none;
  border-radius: 50%;
  color: #fff;
  font-size: 28px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-close:hover {
  background: rgba(255,255,255,0.3);
  transform: scale(1.1);
}

.lightbox-prev,
.lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 56px;
  height: 56px;
  background: rgba(255,255,255,0.2);
  border: none;
  border-radius: 50%;
  color: #fff;
  font-size: 24px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }

.lightbox-prev:hover,
.lightbox-next:hover {
  background: rgba(255,255,255,0.3);
  transform: translateY(-50%) scale(1.1);
}

.lightbox-content {
  max-width: 90vw;
  max-height: 90vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 8px;
  transition: opacity 0.3s ease;
}

.lightbox-content.loading img {
  opacity: 0;
}

.lightbox-loading {
  position: absolute;
  width: 60px;
  height: 60px;
  display: none;
  align-items: center;
  justify-content: center;
}

.lightbox-content.loading .lightbox-loading {
  display: flex;
}

.lightbox-loading svg {
  width: 60px;
  height: 60px;
  animation: spin 1s linear infinite;
}

.lightbox-caption {
  position: absolute;
  bottom: 60px;
  left: 50%;
  transform: translateX(-50%);
  color: #fff;
  font-size: 16px;
  text-align: center;
  max-width: 80%;
}

.lightbox-counter {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.7);
  font-size: 14px;
}

@media (max-width: 900px) {
  .gallery-detail-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .gallery-sidebar {
    position: static;
  }
  .article-sidebar {
    position: static;
  }
}

@media (max-width: 600px) {
  .gallery-waterfall {
    padding: 0 8px;
  }
  .lightbox-prev,
  .lightbox-next {
    width: 44px;
    height: 44px;
    font-size: 20px;
  }
  .lightbox-prev { left: 10px; }
  .lightbox-next { right: 10px; }
  .lightbox-close {
    width: 40px;
    height: 40px;
    font-size: 24px;
    top: 10px;
    right: 10px;
  }
}

.product-main-image {
  position: relative;
  width: 100%;
  margin: 0 0 25px;
  border-radius: 6px;
  overflow: hidden;
  cursor: zoom-in;
  background: #f8fafc;
}

.product-main-image img {
  width: 100%;
  max-height: 400px;
  object-fit: contain;
  display: block;
  transition: transform 0.3s ease;
}

.product-main-image:hover img {
  transform: scale(1.02);
}

.product-image-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.product-main-image:hover .product-image-overlay {
  opacity: 1;
}

.product-image-overlay span {
  color: #fff;
  font-size: 32px;
}

.product-images-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.product-image-item {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: 6px;
  overflow: hidden;
  cursor: zoom-in;
  border: 1px solid #eee;
  background: #f8fafc;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-image-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.product-image-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

@media (max-width: 600px) {
  .product-images-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }
}

.tech-articles { background: #f8f9fa; padding: 60px 0; }
.tech-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.tech-item {
  padding: 15px 20px;
  background: #fff;
  border-radius: 8px;
  border: 1px solid #eee;
  border-left: 3px solid transparent;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.tech-item::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: #0d47a1;
  transform: scaleY(0);
  transition: transform 0.3s ease;
}
.tech-item:hover {
  border-color: #0d47a1;
  box-shadow: 0 4px 12px rgba(13, 71, 161, 0.1);
  transform: translateX(4px);
}
.tech-item:hover::before {
  transform: scaleY(1);
}
.tech-item h4 {
  font-size: 14px;
  color: #333;
  margin: 0;
  line-height: 1.5;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tech-item-link {
  display: block;
  text-decoration: none;
  color: inherit;
}
.tech-item.empty {
  background: transparent;
  border: none;
}

/* 服务流程 */
.process { background: #fff; }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative; }
.process-grid::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #0d47a1 0%, #1976d2 25%, #c62828 50%, #d32f2f 75%, #c62828 100%);
}
.process-item {
  text-align: center; padding: 50px 24px; position: relative;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.process-item:hover {
  transform: translateY(-8px);
}
.process-num {
  width: 80px; height: 80px; border-radius: 50%;
  background: linear-gradient(135deg, #0d47a1, #1976d2);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 24px;
  font-size: 32px; font-weight: bold;
  position: relative;
  z-index: 2;
  box-shadow: 0 6px 20px rgba(13,71,161,.3);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.process-item:nth-child(even) .process-num {
  background: linear-gradient(135deg, #c62828, #d32f2f);
  box-shadow: 0 6px 20px rgba(198, 40, 40, 0.3);
}
.process-item:hover .process-num {
  transform: scale(1.15);
  box-shadow: 0 10px 30px rgba(13,71,161,.4);
}
.process-item:nth-child(even):hover .process-num {
  box-shadow: 0 10px 30px rgba(198, 40, 40, 0.4);
}
.process-item h3 { font-size: 18px; color: #333; margin-bottom: 12px; font-weight: 600; }
.process-item .en { color: #aaa; font-size: 12px; letter-spacing: 3px; display: block; margin-bottom: 14px; }
.process-item p { color: #888; font-size: 14px; line-height: 1.7; }

/* 资质 */
.qualifications { background: linear-gradient(135deg, #f0f4f8, #e3f2fd); }
.qual-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.qual-item {
  background: #fff; padding: 48px 28px; border-radius: 16px; text-align: center;
  border: 1px solid #e8e8e8;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}
.qual-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13,71,161,0.05), transparent);
  opacity: 0;
  transition: opacity 0.4s ease;
}
.qual-item:hover {
  transform: translateY(-12px);
  box-shadow: 0 20px 45px rgba(13,71,161,.15);
  border-color: #0d47a1;
}
.qual-item:hover::after { opacity: 1; }
.qual-item .num {
  font-size: 56px; color: #0d47a1; font-weight: bold;
  background: linear-gradient(135deg, #0d47a1, #1976d2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.qual-item p { color: #666; margin-top: 16px; font-size: 16px; font-weight: 500; }

/* 文章页 */
.article-header {
  background: linear-gradient(135deg, #0a2a5a, #1565c0);
  color: #fff;
  height: 300px;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
}
.article-header::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(10, 42, 90, 0.55);
  z-index: 0;
}
.article-header .container {
  position: relative;
  z-index: 1;
}
.article-header h1 { font-size: 40px; margin-bottom: 28px; }
.article-meta { color: #bbdefb; font-size: 14px; }
.article-meta span { margin-right: 28px; }

.breadcrumbs {
  padding: 20px 0; font-size: 13px; color: #888; border-bottom: 1px solid #eee;
}
.breadcrumbs a { color: #666; }
.breadcrumbs a:hover { color: #0d47a1; }

.article-layout { display: grid; grid-template-columns: 1fr 280px; gap: 40px; padding: 60px 0; }
.article-content { background: #fff; padding: 48px; line-height: 1.9; font-size: 16px; color: #444; border-radius: 12px; box-shadow: 0 2px 15px rgba(0,0,0,.05); }
.article-title { font-size: 32px; font-weight: 700; color: #1a1a2e; margin: 0 0 24px; line-height: 1.4; text-align: center; }
.article-divider { width: 100%; height: 1px; background: linear-gradient(to right, transparent, #0d47a1, transparent); margin: 0 0 24px; }
.article-content img { max-width: 100%; height: auto; margin: 24px auto; border-radius: 8px; }
.article-content h2, .article-content h3 { color: #0d47a1; margin: 36px 0 20px; }
.article-content h4, .article-content h5, .article-content h6 { color: #1a237e; margin: 28px 0 16px; }
.article-content p { margin-bottom: 20px; }
.article-content ul, .article-content ol { margin: 20px 0; padding-left: 32px; }
.article-content ol { list-style-position: inside; }
.article-content ul { list-style-position: inside; }
.article-content li { margin-bottom: 12px; line-height: 1.8; }
.article-content blockquote { border-left: 4px solid #0d47a1; padding-left: 20px; margin: 24px 0; color: #666; font-style: italic; }
.article-content a { color: #0d47a1; text-decoration: underline; }
.article-content a:hover { color: #c62828; }
.article-sidebar { background: #f8f9fa; padding: 32px; border-radius: 12px; word-break: break-all; position: sticky; top: 100px; height: fit-content; }
.article-sidebar h3 {
  font-size: 17px; color: #0d47a1; margin: 0 0 20px; padding-bottom: 14px;
  border-bottom: 2px solid #0d47a1;
  word-break: normal;
}
.sidebar-list li { padding: 14px 0; border-bottom: 1px dashed #ddd; font-size: 14px; }
.sidebar-list li a:hover { color: #c62828; }

/* 分类页 */
.category-list { padding: 60px 0; }
.category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.category-item {
  background: #fff; padding: 36px; border: 1px solid #e8e8e8; border-radius: 12px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.category-item:hover { border-color: #0d47a1; box-shadow: 0 12px 30px rgba(13,71,161,.15); }
.category-item h3 { font-size: 20px; color: #0d47a1; margin: 0 0 14px; }
.category-item p { color: #888; font-size: 14px; }

/* 单页 */
.page-header {
  background: linear-gradient(135deg, #0a2a5a, #1565c0);
  color: #fff;
  height: 300px;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
}
.page-header::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(10, 42, 90, 0.55);
  z-index: 0;
}
.page-header .container {
  position: relative;
  z-index: 1;
}
.page-header h1 {
  font-size: 36px;
  font-weight: bold;
  margin: 0;
}
.page-content-wrapper {
  padding: 60px 0;
  background: #f5f7fa;
  min-height: 500px;
}
.page-card {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
  overflow: hidden;
  transition: all 0.4s ease;
}
.page-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
}
.page-card-body {
  padding: 50px 60px;
  line-height: 1.9;
  font-size: 16px;
  color: #444;
}
.page-card-body h1,
.page-card-body h2,
.page-card-body h3 {
  color: #0d47a1;
  margin: 32px 0 20px;
  font-weight: 600;
}
.page-card-body h1 { font-size: 28px; }
.page-card-body h2 { font-size: 24px; }
.page-card-body h3 { font-size: 20px; }
.page-card-body p {
  margin-bottom: 20px;
}
.page-card-body img {
  max-width: 100%;
  height: auto;
  margin: 20px auto;
  border-radius: 8px;
}
.page-card-body ul,
.page-card-body ol {
  margin: 20px 0;
  padding-left: 30px;
}
.page-card-body li {
  margin-bottom: 12px;
  line-height: 1.8;
}
.page-card-body a {
  color: #0d47a1;
  text-decoration: underline;
}
.page-card-body a:hover {
  color: #c62828;
}
.page-card-body blockquote {
  border-left: 4px solid #0d47a1;
  padding-left: 20px;
  margin: 24px 0;
  color: #666;
  font-style: italic;
  background: #f8f9fa;
  padding: 16px 20px;
  border-radius: 0 8px 8px 0;
}

/* Footer */
.site-footer { background: #0a1c3d; color: #b0bcd0; font-size: 14px; margin-top: 80px; }
.footer-top { padding: 40px 0; display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 40px; }
.footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 16px; font-weight: 600; }
.footer-col ul li { padding: 6px 0; }
.footer-col a { color: #b0bcd0; transition: color 0.2s; }
.footer-col a:hover { color: #fff; }
.footer-col .phone { color: #ffd54f; font-size: 22px; font-weight: bold; margin: 10px 0; letter-spacing: 1px; }
.footer-col p { line-height: 1.8; margin: 8px 0; }
.footer-wechat { text-align: center; }
.footer-wechat .qr-code {
  width: 150px; height: 150px; margin: 0 auto 10px;
  background: #fff; padding: 8px; border-radius: 10px;
}
.footer-wechat .qr-code img { width: 100%; height: 100%; object-fit: contain; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1); padding: 18px 0; text-align: center;
  color: #8c9ab4; font-size: 13px;
}
.footer-bottom span { margin: 0 8px; }
.footer-bottom a { color: #b0bcd0; text-decoration: none; transition: color 0.2s; }
.footer-bottom a:hover { color: #fff; }
.footer-divider { color: rgba(255,255,255,.15); margin: 0 12px; }

/* 列表页布局 */
.list-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 40px;
  padding: 60px 0;
}

/* 左侧边栏 */
.list-sidebar {
  order: -1;
  position: sticky;
  top: 80px;
  align-self: flex-start;
  height: fit-content;
}

.widget-categories .child-item {
  padding-left: 16px;
}

.sidebar-widget {
  background: #f8f9fa;
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 24px;
}

.widget-title {
  font-size: 16px;
  font-weight: 600;
  color: #0d47a1;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid #e3f2fd;
  position: relative;
}

.widget-title::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 40px;
  height: 2px;
  background: #0d47a1;
}

.widget-categories li {
  margin-bottom: 10px;
}

.widget-categories li a {
  display: block;
  padding: 8px 12px;
  border-radius: 6px;
  color: #555;
  transition: all 0.3s;
  font-size: 14px;
}

.widget-categories li a:hover {
  background: #e3f2fd;
  color: #0d47a1;
  padding-left: 16px;
}

.widget-categories li.active a {
  background: #0d47a1;
  color: #fff;
}

.widget-latest li {
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px dashed #e0e0e0;
}

.widget-latest li:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.widget-latest li a {
  display: block;
}

.latest-title {
  display: block;
  color: #333;
  font-size: 14px;
  line-height: 1.5;
  margin-bottom: 4px;
  transition: color 0.3s;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.widget-latest li a:hover .latest-title {
  color: #0d47a1;
}

.latest-date {
  display: block;
  color: #999;
  font-size: 12px;
}

.widget-empty {
  color: #999;
  text-align: center;
  padding: 20px 0;
  font-size: 13px;
}

.widget-contact p {
  margin-bottom: 10px;
  color: #555;
  font-size: 14px;
  line-height: 1.8;
}

.widget-contact a {
  color: #555;
}

.widget-contact a:hover {
  color: #0d47a1;
}

/* 列表主内容区 */
.list-main {
  min-width: 0;
}

.list-main .category-list {
  padding-top: 0;
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.page-item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 14px;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  color: #555;
  font-size: 14px;
  transition: all 0.3s;
  background: #fff;
}

.page-item:hover {
  border-color: #0d47a1;
  color: #0d47a1;
}

.page-item.active {
  background: #0d47a1;
  border-color: #0d47a1;
  color: #fff;
}

.page-ellipsis {
  color: #999;
  padding: 0 4px;
}

/* 响应式 */
@media (max-width: 900px) {
  .business-grid, .news-grid, .case-grid, .process-grid, .qual-grid, .cert-grid,
  .tech-grid { grid-template-columns: 1fr 1fr; }
  .article-layout, .list-layout { grid-template-columns: 1fr; }
  .article-sidebar { display: none; }
  .list-sidebar { display: none; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 30px; }
  .hero-inner { grid-template-columns: 1fr; padding: 100px 0; }
  .hero-left h2 { font-size: 42px; }
  .hero-right { display: none; }
  .section-title h2 { font-size: 32px; }
  .section { padding: 80px 0; }
  .hero { min-height: 550px; }
  .hero-slider { min-height: 550px; }
}

@media (max-width: 768px) {
  .hero-left h2 { font-size: 36px; }
  .hero-left .subtitle { font-size: 18px; }
  .hero-tag { font-size: 12px; padding: 6px 16px; }
  .article-header, .page-header {
    min-height: 180px;
    padding: 50px 0;
  }
  .article-header h1 { font-size: 24px; }
  .page-header h1 { font-size: 22px; }
  .article-content { padding: 24px; }
  .article-title { font-size: 24px; }
  .page-card-body { padding: 30px 24px; }
  .list-layout { grid-template-columns: 1fr; }
  .article-layout { grid-template-columns: 1fr; }
  .list-sidebar { display: none; }
  .article-sidebar { display: none; }
}

@media (max-width: 900px) {
  .sitemap-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .business-grid, .news-grid, .case-grid, .process-grid, .qual-grid, .cert-grid,
  .tech-grid, .list-layout { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 24px; }
  .sitemap-grid { grid-template-columns: 1fr; }
  .hero-left h2 { font-size: 30px; }
  .section { padding: 50px 0; }
  .section-title h2 { font-size: 26px; }
  .logo-text h1 { font-size: 18px; }
  .hero { min-height: 480px; }
  .hero-slider { min-height: 480px; }
  .hero-features { gap: 16px; }
  .hero-feature { padding: 12px 18px; }
  .hero-inner { padding: 80px 0; }
  .article-header, .page-header {
    min-height: 160px;
    padding: 40px 0;
  }
  .article-header h1 { font-size: 22px; }
  .page-header h1 { font-size: 20px; }
  .hero-buttons { flex-direction: column; }
  .hero-buttons .btn { width: 100%; text-align: center; }
}

.sitemap-section { padding: 80px 0; }
.sitemap-section .section-title { margin-bottom: 50px; }
.sitemap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.sitemap-column h3 {
  font-size: 18px;
  font-weight: 600;
  color: #1a365d;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid #3b82f6;
}
.sitemap-column ul { list-style: none; padding: 0; margin: 0; }
.sitemap-column li { margin-bottom: 12px; }
.sitemap-column a {
  color: #4a5568;
  text-decoration: none;
  transition: color 0.3s;
}
.sitemap-column a:hover { color: #3b82f6; }

.sitemap-categories { }
.sitemap-category-item {
  position: relative;
  padding-left: 24px;
}
.sitemap-category-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  background: #3b82f6;
  border-radius: 50%;
}
.sitemap-category-item > a {
  font-weight: 500;
  color: #1a365d;
}
.sitemap-subcategories {
  margin-top: 8px;
  margin-left: 16px;
}
.sitemap-subcategories .sitemap-category-item {
  padding-left: 20px;
}
.sitemap-subcategories .sitemap-category-item::before {
  width: 4px;
  height: 4px;
  background: #6b7280;
}
.sitemap-subcategories .sitemap-category-item > a {
  font-weight: normal;
  color: #4a5568;
}
.sitemap-subcategories .sitemap-subcategories {
  margin-left: 20px;
}
.sitemap-subcategories .sitemap-subcategories .sitemap-category-item::before {
  width: 3px;
  height: 3px;
  background: #9ca3af;
}
.sitemap-subcategories .sitemap-subcategories .sitemap-category-item > a {
  color: #6b7280;
  font-size: 14px;
}
.sitemap-more {
  color: #9ca3af;
  font-size: 14px;
  padding-left: 24px;
}