header {
  color: var(--white);
  position: fixed;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 7px 0;
}

.logo img {
  width: 200px;
  filter: brightness(0) invert(1);
}

/* 顶部导航 */
.nav-menu {
  display: flex;
  align-items: center;
}

.nav-menu li {
  margin-left: 100px;
  position: relative;
}

.nav-menu a {
  padding: 10px 0;
  font-weight: 500;
  font-size: 1.2rem;
  color: var(--white);
  transition: color 0.3s;
}
.scrolled a{
  color: var(--primary-color);
}
.scrolled .logo img {
  filter: none;
}

.nav-menu a:hover {
  color: var(--secondary-color);
}

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--secondary-color);
  transition: width 0.3s;
}

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

/* 下拉菜单结构 */
.nav-menu .dropdown {
  position: relative;
}

.nav-menu .dropdown > a i {
  margin-left: 6px;
  font-size: 0.8em;
  transition: transform 0.3s;
}

/* 下拉菜单内容 */
.nav-menu .dropdown-menu, .sub-menu {
  display: none;
  position: absolute;
  top: calc(100% + 0px);
  left: 0;
  background: #fff;
  list-style: none;
  padding: 15px 20px;
  margin: 0;
  border-radius: 8px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
  min-width: 220px;
  z-index: 2000;
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: all 0.25s ease;
}
.nav-menu li .dropdown-menu li, .sub-menu li {
  margin-left: 0;
}

.nav-menu .dropdown-menu li a, .sub-menu li a {
  display: block;
  padding: 10px 5px;
  color: #333;
  text-decoration: none;
  font-size: 0.95rem;
  transition: background 0.3s, color 0.3s;
}

.nav-menu .dropdown-menu li a:hover, .sub-menu li a:hover {
  /* background: #f2f2f2;
  color: var(--secondary-color); */
}

/* ✅ 悬停触发改为稳定方案 */
.nav-menu .dropdown:hover > a i {
  transform: rotate(180deg);
}

.nav-menu .dropdown:hover .dropdown-menu, .menu-item:hover .sub-menu {
  display: block;
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* 修复菜单消失间隙 */
.nav-menu .dropdown::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 0;
  height: 10px; /* 防止 hover 间隙 */
  width: 100%;
}
.mobile-menu-btn {
  display: none;
  font-size: 24px;
  cursor: pointer;
}
.scrolled .mobile-menu-btn {
  color: var(--primary-color);
}

.nav-menu a.whatsapp-button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  background: linear-gradient(145deg, #2b2f77, #6f95ff);
  color: #fff;
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  overflow: hidden;
  transition: all 0.4s ease;
  box-shadow: 0 6px 20px rgba(24, 45, 85, 0.4), inset 0 0 8px rgba(255,255,255,0.1);
  letter-spacing: 0.5px;
}

/* 金属磁光波动 */
.nav-menu a.whatsapp-button::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(
    from 0deg,
    rgba(255, 255, 255, 0) 0deg,
    rgba(255, 255, 255, 0.2) 90deg,
    rgba(255, 255, 255, 0) 180deg
  );
  animation: rotateLight 3s linear infinite;
  z-index: 0;
}

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

/* 悬停磁力波动效果 */
.whatsapp-button:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 8px 25px rgba(50, 100, 200, 0.4);
}

/* 图标 */
.whatsapp-button i {
  font-size: 1.4rem;
  margin-right: 10px;
  transition: transform 0.3s ease;
  z-index: 1;
}

.whatsapp-button:hover i {
  transform: rotate(12deg) scale(1.1);
}

/* 文字 */
.whatsapp-button div {
  position: relative;
  z-index: 1;
  font-size: .8rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1;
}

/* 磁波闪光 */
.whatsapp-button::after {
  content: "";
  position: absolute;
  top: 0;
  left: -75%;
  width: 50%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,0.35), transparent);
  transition: all 0.5s;
}

.whatsapp-button:hover::after {
  left: 125%;
}

/* 脉冲外圈（磁场感） */
@keyframes magneticPulse {
  0% {
    box-shadow: 0 0 0 0 rgba(86, 145, 255, 0.6);
  }
  70% {
    box-shadow: 0 0 0 15px rgba(86, 145, 255, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(86, 145, 255, 0);
  }
}

.whatsapp-button:hover {
  animation: magneticPulse 1.8s infinite;
}


.pulse {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50px;
  background: rgba(37, 211, 102, 0.4);
  opacity: 0;
  animation: pulse 2s infinite;
  z-index: -1;
}

@keyframes pulse {
  0% {
    transform: scale(1);
    opacity: 0.7;
  }
  70% {
    transform: scale(1.1);
    opacity: 0;
  }
  100% {
    transform: scale(1);
    opacity: 0;
  }
}
.language-dropdown {
  position: relative;
  display: inline-block;
  font-size: 14px;
}

.language-dropdown {
  position: relative;
  display: inline-block;
  font-size: 14px;
  z-index: 10;
}

/* 按钮主体 */
.lang-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: linear-gradient(145deg, #20244f, #4b6cff);
  border: none;
  border-radius: 30px;
  padding: 6px 14px;
  color: #fff;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.4s ease;
  box-shadow: 0 4px 15px rgba(50, 90, 200, 0.35);
  letter-spacing: 0.3px;
  position: relative;
  overflow: hidden;
}

/* 金属质感闪光 */
.lang-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 80%;
  height: 100%;
  background: linear-gradient(
    120deg,
    transparent,
    rgba(255, 255, 255, 0.35),
    transparent
  );
  transition: all 0.6s ease;
}

.lang-btn:hover::before {
  left: 120%;
}

/* 悬浮发光与浮起 */
.lang-btn:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 6px 20px rgba(86, 145, 255, 0.45);
}

/* 图标样式：地球 + 微旋转 */
.lang-btn i {
  font-size: 1rem;
  animation: slowSpin 6s linear infinite;
  color: #9fc3ff;
  filter: drop-shadow(0 0 2px rgba(150, 180, 255, 0.6));
}

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

/* 下拉菜单 */
.lang-menu.dropdown-menu {
  position: absolute;
  top: 120%;
  right: 0;
  background: rgba(15, 20, 50, 0.95);
  backdrop-filter: blur(8px);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  list-style: none;
  margin: 0 0 0 -60px;
  padding: 0;
  min-width: 200px;
  height: 260px;
  overflow-y: scroll;
  z-index: 9999;
}

.gt_float_switcher .gt_options{
    display: block!important;
    opacity: 1!important;
    padding: 35px 0;
}

/* 打开时显示动画 */
.language-dropdown:hover .lang-menu.dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}


/* 菜单选项 */
.lang-menu.dropdown-menu a {
  width: 100%;
  display: block;
  padding: 8px 15px;
  color: #d0dcff !important;
  text-decoration: none;
  font-size: 13.5px;
  transition: background 0.3s, color 0.3s;
  white-space: nowrap;   /* 避免换行 */
}


/* ===========================
   炫酷 Banner 动效增强版
   =========================== */

/* 容器基础 */
.banner {
  height: 100vh;
  position: relative;
  overflow: hidden;
  background: #000;
}

/* 每张轮播图 */
.banner-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: kenburns 12s ease-in-out infinite alternate;
}

/* 激活状态 */
.banner-slide.active {
  opacity: 1;
  z-index: 1;
}

/* Ken Burns 缩放平移动效 */
@keyframes kenburns {
  0% {
    transform: scale(1.05) translate(0, 0);
  }
  100% {
    transform: scale(1.15) translate(-2%, -2%);
  }
}

/* 半透明遮罩层（让文字更突出） */
.banner-slide::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.1) 10%,
    rgba(0, 0, 0, 0.2) 80%
  );
  z-index: 0;
}

/* 粒子漂浮层 */
.banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 30%, rgba(0,255,255,0.05), transparent 60%),
              radial-gradient(circle at 80% 70%, rgba(0,140,255,0.05), transparent 60%);
  mix-blend-mode: screen;
  animation: floatParticles 15s linear infinite alternate;
  z-index: 1;
}
@keyframes floatParticles {
  0% { transform: translate(0, 0); opacity: 0.8; }
  100% { transform: translate(40px, -40px); opacity: 1; }
}

/* 扫光条 */
.banner::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    120deg,
    transparent 0%,
    rgba(255,255,255,0.08) 40%,
    transparent 80%
  );
  animation: lightSweep 8s linear infinite;
  z-index: 2;
}
@keyframes lightSweep {
  0% { left: -50%; }
  100% { left: 150%; }
}

/* 文字内容层 */
.banner-content {
  position: relative;
  z-index: 3;
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  color: white;
  padding: 0 20px;
}

/* 标题带轻微漂浮与发光 */
.banner h1 {
  font-size: 3.5rem;
  margin-bottom: 20px;
  text-shadow: 0 0 20px rgba(0, 242, 255, 0.3);
  animation: fadeInUp 1s ease forwards, floatText 6s ease-in-out infinite alternate;
}

.banner p {
  font-size: 1.3rem;
  margin-bottom: 30px;
  color: #d6efff;
  text-shadow: 0 0 15px rgba(0, 180, 255, 0.2);
  animation: fadeInUp 1s ease 0.2s both, floatText 8s ease-in-out infinite alternate;
}

@keyframes floatText {
  from { transform: translateY(0); }
  to { transform: translateY(-4px); }
}

/* 按钮区 */
.banner-btns {
  display: flex;
  justify-content: center;
  gap: 20px;
  animation: fadeInUp 1s ease 0.4s both;
}

/* 下方指示器 */
.banner-indicators {
  position: absolute;
  bottom: 30px;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: center;
  gap: 10px;
  z-index: 4;
}

.banner-indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: all 0.3s ease;
}

.banner-indicator.active {
  background: #00ffff;
  box-shadow: 0 0 10px rgba(0,255,255,0.6);
  transform: scale(1.3);
}

/* 左右控制箭头 */
.banner-control {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.08);
  color: white;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 20px;
  z-index: 5;
  transition: all 0.3s ease;
}

.banner-control:hover {
  background: rgba(0, 255, 255, 0.2);
  box-shadow: 0 0 15px rgba(0,255,255,0.4);
  transform: translateY(-50%) scale(1.1);
}

.banner-control.prev { left: 25px; }
.banner-control.next { right: 25px; }

/* 基础入场动画 */
@keyframes fadeInUp {
  0% { opacity: 0; transform: translateY(30px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* 通用样式 */
.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: 2.5rem;
  color: var(--primary-color);
  position: relative;
  display: inline-block;
  padding-bottom: 15px;
}

.section-title h2::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: var(--secondary-color);
}

.section-title p {
  max-width: 700px;
  margin: 20px auto 0;
  color: #666;
}

/* 关于我们 */
.about {
  background: var(--light-bg);
}

.about-content {
  display: flex;
  align-items: center;
  gap: 50px;
}

.about-text {
  flex: 1;
}

.about-text h3 {
  font-size: 1.8rem;
  margin-bottom: 20px;
  color: var(--primary-color);
}

.about-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 30px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 15px;
}

.feature-icon {
  width: 50px;
  height: 50px;
  background: var(--secondary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 20px;
  flex-shrink: 0;
}

.about-image {
  flex: 1;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  position: relative;
}

.about-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s;
}

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

/* 产品展示 */
.products {
  position: relative;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 30px;
}

.product-card {
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
  position: relative;
}

.product-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.product-badge {
  position: absolute;
  top: 15px;
  right: 15px;
  background: var(--secondary-color);
  color: white;
  padding: 5px 10px;
  border-radius: 4px;
  font-size: 12px;
  z-index: 2;
}

.product-img {
  height: 200px;
  overflow: hidden;
  position: relative;
}

.product-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

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

.product-info {
  padding: 20px;
}

.product-info h3 {
  margin-bottom: 10px;
  color: var(--primary-color);
}

.product-info p {
  color: #666;
  margin-bottom: 15px;
  font-size: 14px;
}

.product-price {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 15px;
}

.price {
  font-weight: bold;
  color: var(--secondary-color);
  font-size: 18px;
}

/* 应用领域 */
.applications {
  background: var(--light-bg);
  color: #fff;
  text-align: center;
  padding: 100px 0;
}

.applications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.app-card {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 0 20px rgba(0, 255, 255, 0.15);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.app-card img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform 0.6s ease;
  filter: brightness(0.6);
}

.app-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.8));
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  padding: 20px;
  color: #fff;
  text-align: center;
  transition: background 0.4s ease;
}

.app-overlay i {
  font-size: 40px;
  color: #00e0ff;
  margin-bottom: 10px;
  transition: transform 0.4s ease;
}

.app-overlay h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
}

.app-overlay p {
  font-size: 0.9rem;
  color: #ccc;
}

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

.app-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 0 25px rgba(0, 255, 255, 0.3);
}

.app-card:hover .app-overlay {
  background: linear-gradient(180deg, rgba(0, 224, 255, 0.1), rgba(255, 0, 200, 0.6));
}

.app-card:hover i {
  transform: rotate(360deg);
  color: #ff00c8;
}

/* 留言板 */
.contact-section .contact-form{
    color: var(--text-color);
}
.contact-form {
 background: url(../images/sub-banners/product.webp) center / cover no-repeat;
  overflow: hidden;
  background-attachment: fixed;
  color: white;
  padding: 80px 0;
  text-align: center;
}

.contact-form .section-title h2 {
  color: white;
}

.contact-form option {
  color: var(--primary-color);
}

.contact-form .section-title p {
  color: rgba(255, 255, 255, 0.8);
}

.form-container {
  max-width: 800px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.05);
  padding: 40px;
  border-radius: 8px;
  backdrop-filter: blur(10px);
}

.form-group {
  margin-bottom: 20px;
  text-align: left;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
}

.form-control {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  color: white;
  font-size: 16px;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--secondary-color);
  background: rgba(255, 255, 255, 0.15);
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

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

/* 页面标题横幅 */
.page-banner {
  background: linear-gradient(rgba(10, 26, 53, 0.8), rgba(10, 26, 53, 0.8)),
    url("../images/sub-banners/solution.webp");
  background-size: cover;
  display: flex;
  align-items: center;
  text-align: center;
  color: white;
  position: relative; /* ✅ 让::after定位只在banner内部生效 */
  overflow: hidden;   /* ✅ 防止伪元素或内容外溢 */
  background-repeat: no-repeat;
  min-height: 70vh;   /* 可按需求调整 */
}

.banabout{
  background: linear-gradient(rgba(10, 26, 53, 0.8), rgba(10, 26, 53, 0.8)),
    url("../images/sub-banners/about.webp");
    background-size: cover;
}

.banproduct{
  background: linear-gradient(rgba(10, 26, 53, 0.8), rgba(10, 26, 53, 0.8)),
    url("../images/sub-banners/product.webp");
    background-size: cover;
}

.banproduct2{
  background: linear-gradient(rgba(10, 26, 53, 0.8), rgba(10, 26, 53, 0.8)),
    url("../images/sub-banners/product2.webp");
    background-size: cover;
}

.bannew{
  background: linear-gradient(rgba(10, 26, 53, 0.8), rgba(10, 26, 53, 0.8)),
    url("../images/sub-banners/new.webp");
    background-size: cover;
}
.bancontact{
  background: linear-gradient(rgba(10, 26, 53, 0.8), rgba(10, 26, 53, 0.8)),
    url("../images/sub-banners/contact.webp");
    background-size: cover;
}

.page-banner-content {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  color: #fff;
  position: relative;
  z-index: 2;
  padding: 80px 20px;
}

/* 主标题 */
.page-banner h1 {
  font-size: 3.2rem;
  line-height: 1.2;
  margin-bottom: 20px;
  font-weight: 700;
  background: linear-gradient(90deg, #00c6ff, #0072ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
  animation: fadeSlideIn 1s ease forwards;
}

/* 副标题文字 */
.page-banner p {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 400;
  letter-spacing: 0.3px;
  line-height: 1.8;
  animation: fadeSlideIn 1.2s ease forwards;
  animation-delay: 0.3s;
  opacity: 0;
}

/* ✅ 动画效果 */
@keyframes fadeSlideIn {
  0% {
    opacity: 0;
    transform: translateY(30px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ✅ 背景蒙层，让文字更突出 */
.page-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(2px);
  z-index: 1;
}

/* ✅ 内容层在蒙层之上 */
.page-banner-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
  padding: 100px 20px 50px 20px;
  color: #fff;
  text-align: center;
}


/* 关于我们内容 */
.about-intro {
  background: var(--light-bg);
}

/* 品牌故事 */
.brand-story {
  position: relative;
}

.story-content {
  display: flex;
  align-items: center;
  gap: 50px;
}

.story-text {
  flex: 1;
}

.story-text h3 {
  font-size: 1.8rem;
  margin-bottom: 20px;
  color: var(--primary-color);
}

.story-image {
  flex: 1;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.story-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* 发展历程 */
.timeline {
  background: var(--light-bg);
  position: relative;
}

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

.timeline-container::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  background: var(--secondary-color);
  transform: translateX(-50%);
}

.timeline-item {
  padding: 20px 40px;
  position: relative;
  width: 50%;
  box-sizing: border-box;
}

.timeline-item:nth-child(odd) {
  left: 0;
}

.timeline-item:nth-child(even) {
  left: 50%;
}

.timeline-item::after {
  content: "";
  position: absolute;
  top: 30px;
  width: 20px;
  height: 20px;
  background: var(--secondary-color);
  border-radius: 50%;
}

.timeline-item:nth-child(odd)::after {
  right: -10px;
}

.timeline-item:nth-child(even)::after {
  left: -10px;
}

.timeline-content {
  padding: 20px;
  background: white;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}

.timeline-content:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.timeline-year {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--secondary-color);
  margin-bottom: 10px;
}

/* 企业文化 */
.culture {
  position: relative;
}

.culture-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
}

.culture-card {
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
  text-align: center;
  padding: 40px 30px;
}

.culture-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.culture-icon {
  width: 80px;
  height: 80px;
  background: var(--secondary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 30px;
  margin: 0 auto 20px;
}

.culture-card h3 {
  margin-bottom: 15px;
  color: var(--primary-color);
}

/* 荣誉资质 */
.honors {
  background: var(--light-bg);
}

.honors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 30px;
}

.honor-card {
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
  text-align: center;
  padding: 30px 20px;
}

.honor-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.honor-icon {
  width: 60px;
  height: 60px;
  background: var(--secondary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 24px;
  margin: 0 auto 15px;
}

.honor-card h3 {
  margin-bottom: 10px;
  color: var(--primary-color);
}

/* 社会责任 */
.responsibility {
  position: relative;
}

.responsibility-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
}

.responsibility-card {
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}

.responsibility-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

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

.responsibility-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

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

.responsibility-content {
  padding: 20px;
}

.responsibility-content h3 {
  margin-bottom: 10px;
  color: var(--primary-color);
}

/* 联系我们 */
.contact-section {
  padding: 80px 0;
  background: var(--light-bg);
}

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.contact-section .section-title h2 {
  font-size: 2.2rem;
  color: var(--primary-color);
  font-weight: 700;
  margin-bottom: 15px;
}

.contact-section .section-title p {
  color: #718096;
  font-size: 1.1rem;
}

/* 联系信息卡片 */
.contact-info {
  background: var(--white);
  border-radius: 12px;
  padding: 40px;
  box-shadow: var(--shadow);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 30px;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--gray-light);
}

.contact-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: var(--secondary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 20px;
  flex-shrink: 0;
}

.contact-details h3 {
  font-size: 1.3rem;
  color: var(--primary-color);
  margin-bottom: 8px;
  font-weight: 600;
}

.contact-details p {
  color: #4a5568;
  margin-bottom: 5px;
}

.contact-link {
  color: var(--secondary-color);
  font-weight: 500;
  transition: var(--transition);
}

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

/* 社交媒体 */
.social-media {
  margin-top: 40px;
}

.social-media h3 {
  font-size: 1.3rem;
  color: var(--primary-color);
  margin-bottom: 20px;
  font-weight: 600;
}

.social-links {
  display: flex;
  gap: 15px;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 45px;
  height: 45px;
  background: var(--light-bg);
  border-radius: 50%;
  transition: var(--transition);
  color: var(--primary-color);
}

.social-link:hover {
  background: var(--secondary-color);
  color: white;
  transform: translateY(-3px);
}

/* 留言板表单 */
.contact-section .contact-form {
  background: var(--white);
  border-radius: 12px;
  padding: 40px;
  box-shadow: var(--shadow);
}

.contact-section .form-group {
  margin-bottom: 25px;
}

.contact-section .form-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--primary-color);
}

.contact-section .form-control {
  width: 100%;
  border: 1px solid var(--gray-light);
  border-radius: var(--radius);
  font-family: "Inter", sans-serif;
  transition: var(--transition);
  font-size: 16px;
}

.contact-section .form-control:focus {
  outline: none;
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.1);
}

.contact-section textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

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

.contact-section .form-submit {
  margin-top: 10px;
}

/* 地图区域 */
.map-section {
  padding: 80px 0;
  background: var(--white);
}

.map-container {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  height: 450px;
}

.map-placeholder {
  width: 100%;
  height: 100%;
  background: var(--light-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #718096;
}
.map-placeholder iframe{
  width: 100%;
  height: 100%;
}

/* 办公地点 */
.locations-section {
  padding: 80px 0;
  background: var(--light-bg);
}

.locations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.location-card {
  background: var(--white);
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.location-text{
  padding: 0 30px 30px;
}

.location-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.locations-grid img  {
  width: 100%;
  height: auto;
  background: var(--secondary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 24px;
  margin-bottom: 20px;
}

.location-card h3 {
  font-size: 1.4rem;
  color: var(--primary-color);
  margin-bottom: 15px;
  font-weight: 600;
}

.location-details {
  color: #4a5568;
  margin-bottom: 20px;
}

.location-details p {
  margin-bottom: 8px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.location-details i {
  color: var(--secondary-color);
  margin-top: 3px;
  flex-shrink: 0;
}

/* 常见问题 */
.faq-section {
  padding: 80px 0;
  background: var(--white);
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  margin-bottom: 20px;
  border: 1px solid var(--gray-light);
  border-radius: 8px;
  overflow: hidden;
}

.faq-question {
  padding: 12px;
  background: var(--light-bg);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 500;
  color: var(--primary-color);
}

.faq-answer {
  padding: 0 20px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
  padding: 20px;
  max-height: 500px;
}

.faq-toggle {
  transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
  transform: rotate(180deg);
}

/* 新闻分类导航 */
.news-nav,
.services-nav,
.applications-nav,
.category-nav {
  background: var(--white);
  padding: 30px 0;
  position: sticky;
  top: 70px;
  z-index: 999;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.news-container,
.category-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.category-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.category-tab,
.service-tab,
.application-tab {
  padding: 12px 24px;
  background: var(--white);
  border-radius: 30px;
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
  border: 1px solid var(--gray-light);
  display: flex;
  align-items: center;
  gap: 8px;
}

.category-tab.active,
.service-tab.active,
.application-tab.active{
  /*background: var(--secondary-color);*/
  color: var(--secondary-color);
  border-color: var(--secondary-color);
}

.application-tab:hover,
.application-tab:hover a{
  color: var(--secondary-color);
  border-color: var(--secondary-color);
}

.category-tab:hover:not(.active),
.service-tab:hover:not(.active),
.application-tab:hover:not(.active) {
  /*background: var(--light-bg);*/
}

.search-filter-container {
  display: flex;
  gap: 15px;
}

.search-box {
  display: flex;
  align-items: center;
  background: var(--white);
  border-radius: var(--radius);
  padding: 10px 15px;
  border: 1px solid var(--gray-light);
}

.search-box input {
  border: none;
  outline: none;
  padding: 5px;
  width: 200px;
  background: transparent;
  font-family: "Inter", sans-serif;
}

.filter-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--gray-light);
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
}

.filter-btn:hover {
  background: var(--light-bg);
}

/* 新闻内容区域 */
.news-section,
.services-section,
.applications-section,
.products-section {
  padding: 80px 0;
  background: var(--light-bg);
}

.news-content,
.service-content,
.application-content,
.category-content {
  display: none;
  animation: fadeIn 0.5s ease;
}

.news-content.active,
.service-content.active,
.application-content.active,
.category-content.active {
  display: block;
}

.category-header,
.service-header,
.application-header {
  margin-bottom: 40px;
  text-align: center;
}

.category-header h3,
.service-header h3,
.application-header h3 {
  font-size: 1.8rem;
  color: var(--primary-color);
  margin-bottom: 15px;
  font-weight: 600;
}

.category-header p,
.service-header p,
.application-header p {
  max-width: 800px;
  margin: 0 auto;
  color: #718096;
}

/* 特色文章 */
.featured-article {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.featured-image {
  height: 100%;
  overflow: hidden;
}

.featured-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.featured-article:hover .featured-image img {
  transform: scale(1.05);
}

.featured-content {
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.article-meta {
  display: flex;
  gap: 15px;
  margin-bottom: 15px;
  font-size: 0.9rem;
  color: #718096;
}

.article-category {
  background: var(--secondary-color);
  color: white;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

.featured-content h3 {
  font-size: 1.8rem;
  color: var(--primary-color);
  margin-bottom: 15px;
  font-weight: 700;
  line-height: 1.3;
}

.featured-content p {
  color: #4a5568;
  margin-bottom: 20px;
  line-height: 1.6;
}

/* 文章网格 */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 30px;
}

.article-card {
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.article-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.article-image {
  height: 200px;
  overflow: hidden;
}

.article-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.article-card:hover .article-image img {
  transform: scale(1.1);
}

.article-info {
  padding: 25px;
}

.article-info h4 {
  font-size: 1.3rem;
  color: var(--primary-color);
  margin-bottom: 10px;
  font-weight: 600;
  line-height: 1.4;
}

.article-excerpt {
  color: #718096;
  margin-bottom: 15px;
  line-height: 1.5;
}

.article-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 20px;
  padding-top: 15px;
  border-top: 1px solid var(--gray-light);
}

.article-date {
  color: #718096;
  font-size: 0.9rem;
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  margin-top: 60px;
  gap: 10px;
}

.page-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  border: 1px solid var(--gray-light);
  background: var(--white);
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
}

.page-btn.active {
  background: var(--secondary-color);
  color: white;
  border-color: var(--secondary-color);
}

.page-btn:hover:not(.active) {
  background: var(--light-bg);
}

/* 订阅区域 */
.subscribe-section {
  background: linear-gradient(
    135deg,
    var(--primary-color) 0%,
    var(--secondary-color) 100%
  );
  color: white;
  padding: 80px 0;
  text-align: center;
}

.subscribe-content {
  max-width: 600px;
  margin: 0 auto;
}

.subscribe-content h2 {
  font-size: 2.2rem;
  margin-bottom: 15px;
  font-weight: 700;
}

.subscribe-content p {
  font-size: 1.1rem;
  margin-bottom: 30px;
  opacity: 0.9;
}

.subscribe-form {
  display: flex;
  max-width: 500px;
  margin: 0 auto;
}

.subscribe-input {
  flex: 1;
  padding: 15px 20px;
  border: none;
  border-radius: 6px 0 0 6px;
  font-family: "Inter", sans-serif;
  font-size: 16px;
}

.subscribe-input:focus {
  outline: none;
}

.subscribe-btn {
  padding: 15px 25px;
  background: var(--success-color);
  color: white;
  border: none;
  border-radius: 0 6px 6px 0;
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
}

.subscribe-btn:hover {
  background: #2f855a;
}

/* 面包屑导航 */
.breadcrumb {
  background: var(--light-bg);
  padding: 20px 0;
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: #718096;
}

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

.breadcrumb-separator {
  color: #cbd5e0;
}

/* 文章内容区域 */
.article-section {
  padding: 80px 0;
  background: var(--white);
}

.article-container {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 60px;
}

/* 文章主体 */
.article-main {
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
}

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

.article-title {
  font-size: 2.2rem;
  color: var(--primary-color);
  margin-bottom: 20px;
  font-weight: 700;
  line-height: 1.3;
}

.article-excerpt {
  font-size: 1.2rem;
  color: #4a5568;
  line-height: 1.6;
  margin-bottom: 30px;
}

.article-image {
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 40px;
  box-shadow: var(--shadow-lg);
}

.article-image img {
  width: 100%;
  height: auto;
  display: block;
}

.article-content {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #2d3748;
}

.article-content h2 {
  font-size: 1.8rem;
  color: var(--primary-color);
  margin: 40px 0 20px;
  font-weight: 600;
}

.article-content h3 {
  font-size: 1.4rem;
  color: var(--primary-color);
  margin: 30px 0 15px;
  font-weight: 600;
}

.article-content p,.product-tabs p {
  margin-bottom: 20px;
}

.article-content ul,
.article-content ol {
  margin-bottom: 20px;
  padding-left: 20px;
}

.article-content li {
  margin-bottom: 8px;
}

.article-content blockquote {
  border-left: 4px solid var(--secondary-color);
  padding-left: 20px;
  margin: 30px 0;
  font-style: italic;
  color: #4a5568;
}

.article-content img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 20px 0;
  box-shadow: var(--shadow);
}

/* 文章导航 */
.article-navigation {
  display: flex;
  justify-content: space-between;
  margin-top: 60px;
  padding-top: 30px;
  border-top: 1px solid var(--gray-light);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 15px 20px;
  border-radius: 8px;
  transition: var(--transition);
  max-width: 45%;
}

.nav-item:hover {
  background: var(--light-bg);
}

.nav-item.prev {
  text-align: left;
}

.nav-item.next {
  text-align: right;
  margin-left: auto;
}

.nav-icon {
  font-size: 20px;
  color: var(--secondary-color);
}

.nav-text h4 {
  font-size: 0.9rem;
  color: #718096;
  margin-bottom: 5px;
  font-weight: 500;
}

.nav-text h3 {
  font-size: 1.1rem;
  color: var(--primary-color);
  font-weight: 600;
}

/* 侧边栏 */
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.sidebar-widget {
  background: var(--white);
  border-radius: 12px;
  padding: 30px;
  box-shadow: var(--shadow);
}

.widget-title {
  font-size: 1.3rem;
  color: var(--primary-color);
  margin-bottom: 20px;
  font-weight: 600;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--gray-light);
}

/* 相关产品 */
.related-products {
  margin-top: 40px;
}

.products-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.product-item {
  display: flex;
  gap: 15px;
  padding: 15px;
  border-radius: 8px;
  transition: var(--transition);
}

.product-item:hover {
  background: var(--light-bg);
}

.product-image {
  width: 80px;
  height: 80px;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
}

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

.product-info h4 {
  font-size: 1rem;
  color: var(--primary-color);
  margin-bottom: 5px;
  font-weight: 600;
}

.product-info p {
  font-size: 0.9rem;
  color: #718096;
  margin-bottom: 8px;
}

.product-price {
  font-size: 1rem;
  color: var(--secondary-color);
  font-weight: 600;
}

/* 最新发布 */
.latest-articles {
  margin-top: 40px;
}

.articles-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.article-item {
  display: flex;
  gap: 15px;
  padding: 15px;
  border-radius: 8px;
  transition: var(--transition);
}

.article-item:hover {
  background: var(--light-bg);
}

.article-thumb {
  width: 80px;
  height: 80px;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
}

.article-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-preview h4 {
  font-size: 1rem;
  color: var(--primary-color);
  margin-bottom: 5px;
  font-weight: 600;
  line-height: 1.3;
}

.article-preview .date {
  font-size: 0.8rem;
  color: #718096;
}

/* 分享区域 */
.share-section {
  margin-top: 40px;
  padding: 30px;
  background: var(--light-bg);
  border-radius: 12px;
  text-align: center;
}

.share-title {
  font-size: 1.2rem;
  color: var(--primary-color);
  margin-bottom: 20px;
  font-weight: 600;
}

.share-buttons {
  display: flex;
  justify-content: center;
  gap: 15px;
}

.share-btn {
  width: 45px;
  height: 45px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--white);
  color: var(--primary-color);
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.share-btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.share-btn.wechat {
  color: #07c160;
}

.share-btn.linkedin {
  color: #0077b5;
}

.share-btn.twitter {
  color: #1da1f2;
}

.share-btn.facebook {
  color: #1877f2;
}

.services-container,
.applications-container {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 15px;
}

.service-icon,
.application-icon {
  font-size: 18px;
}

/* 服务内容区域 */
.service-detail,
.application-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
  margin-bottom: 60px;
}

.service-text h4,
.application-text h4 {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-bottom: 20px;
  font-weight: 600;
}

.service-text p,
.application-text p {
  margin-bottom: 20px;
  color: #4a5568;
  line-height: 1.7;
}

.service-features,
.application-features {
  margin-top: 25px;
}

.service-features h5,
.application-features h5 {
  font-size: 1.2rem;
  color: var(--primary-color);
  margin-bottom: 15px;
  font-weight: 600;
}

.features-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 15px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.feature-icon {
  color: var(--secondary-color);
  font-size: 16px;
  margin-top: 3px;
}

.service-image,
.application-image {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.service-image img,
.application-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s ease;
}

.service-image:hover img,
.application-image:hover img {
  transform: scale(1.03);
}

/* 合作伙伴 */
.partners-section {
  background: var(--white);
  padding: 80px 0;
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  align-items: center;
}

.partner-logo {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 30px;
  background: var(--light-bg);
  border-radius: 12px;
  transition: var(--transition);
}

.partner-logo:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}

.partner-logo img {
  max-width: 100%;
  height: auto;
  filter: grayscale(100%);
  transition: var(--transition);
}

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

/* 服务优势 */
.advantages-section {
  background: var(--light-bg);
  padding: 80px 0;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.advantage-card {
  background: var(--white);
  border-radius: 12px;
  padding: 40px 30px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.advantage-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.advantage-icon {
  width: 80px;
  height: 80px;
  background: var(--secondary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 32px;
  margin: 0 auto 25px;
}

.advantage-card h3 {
  margin-bottom: 15px;
  color: var(--primary-color);
  font-weight: 600;
}

.advantage-card p {
  color: #718096;
}

/* CTA区域 */
.cta-section,
.cta-section-full {
  position: relative;
  color: #fff;
  text-align: center;
  padding: 100px 0;
  background: url('../images/bg1.webp') center/cover no-repeat;
  overflow: hidden;
  background-attachment: fixed; 
}

.cta-section::before,
.cta-section-full::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  opacity: 0.7; /* 调整遮罩透明度 */
  z-index: 0;
}

.cta-section * ,
.cta-section-full * {
  position: relative;
  z-index: 1;
}


.cta-content {
  max-width: 800px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: 2.5rem;
  margin-bottom: 20px;
  font-weight: 700;
}

.cta-content p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  opacity: 0.9;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-btns {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* ===== 合作伙伴展示 ===== */
.partners {
    background: var(--light-bg);
    text-align: center;
}

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

.partners .section-title p {
    color: var(--primary-color);
}

.partners-slider {
    overflow: hidden;
    position: relative;
    width: 100%;
    margin-top: 40px;
}

.partners-track {
    display: flex;
    gap: 60px;
    animation: scrollPartners 25s linear infinite;
}

.partner img {
    height: 70px;
    filter: grayscale(100%) brightness(0.8);
    transition: all 0.3s ease;
}

.partner img:hover {
    filter: grayscale(0%) brightness(1);
    transform: scale(1.1);
}

/* 自动滚动动画 */
@keyframes scrollPartners {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.product-info .cta-section::before,
.product-info .cta-section-full::before {

  background: var(--white);
}

.product-info .cta-section {
  margin-bottom: 30px;
  background: none;
  padding: 15px 20px;
}

.product-info .cta-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 15px;
  margin-bottom: 10px;
}

.product-info .cta-btn {
  font-size: small;
  line-height: 1.1;
  width: 100%;
  text-align: center;
  justify-content: center;
}

.product-info .cta-btn-large {
  grid-column: 1 / -1;
}

/* 质量控制 */
/* 品控理念 */
.quality-philosophy {
  background: var(--white);
}

.philosophy-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.philosophy-text h3 {
  font-size: 1.8rem;
  color: var(--primary-color);
  margin-bottom: 20px;
  font-weight: 600;
}

.philosophy-text p {
  margin-bottom: 20px;
  color: #4a5568;
  line-height: 1.7;
}

.philosophy-features {
  margin-top: 30px;
}

.philosophy-features h4 {
  font-size: 1.3rem;
  color: var(--primary-color);
  margin-bottom: 15px;
  font-weight: 600;
}

.philosophy-image {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.philosophy-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* 品控流程 */
.quality-process {
  background: var(--light-bg);
}

.process-steps {
  display: flex;
  flex-direction: column;
  gap: 40px;
  max-width: 900px;
  margin: 0 auto;
}

.process-step {
  display: flex;
  gap: 30px;
  align-items: flex-start;
}

.step-number {
  width: 60px;
  height: 60px;
  background: var(--secondary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  font-weight: 700;
  flex-shrink: 0;
}

.step-content {
  flex: 1;
  background: var(--white);
  padding: 30px;
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.step-content:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.step-content h3 {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-bottom: 15px;
  font-weight: 600;
}

.step-content p {
  margin-bottom: 15px;
  color: #4a5568;
}

.step-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
  margin-top: 20px;
}

.step-feature {
  display: flex;
  align-items: center;
  gap: 10px;
}

.step-feature i {
  color: var(--success-color);
  font-size: 14px;
}

/* 品控工具 */
.quality-tools {
  background: var(--white);
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
}

.tool-card {
  background: var(--white);
  border-radius: 12px;
  padding: 30px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  text-align: center;
  border: 1px solid var(--gray-light);
}

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

.tool-icon {
  width: 80px;
  height: 80px;
  background: var(--secondary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 32px;
  margin: 0 auto 25px;
}

.tool-card h3 {
  margin-bottom: 15px;
  color: var(--primary-color);
  font-weight: 600;
}

.tool-card p {
  color: #718096;
  margin-bottom: 20px;
}

.tool-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.tool-spec {
  background: var(--light-bg);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  color: #4a5568;
  font-weight: 500;
}

/* 认证标准 */
.certifications {
  background: var(--light-bg);
}

.certifications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 30px;
}

.certification-card {
  background: var(--white);
  border-radius: 12px;
  padding: 30px 20px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  text-align: center;
}

.certification-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.certification-icon {
  width: 70px;
  height: 70px;
  background: var(--success-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 28px;
  margin: 0 auto 20px;
}

.certification-card h3 {
  margin-bottom: 10px;
  color: var(--primary-color);
  font-weight: 600;
}

.certification-card p {
  color: #718096;
  font-size: 0.9rem;
}

/* 统计数据 */
.quality-stats,
.stats-section {
  background: linear-gradient(
    135deg,
    var(--primary-color) 0%,
    var(--secondary-color) 100%
  );
  color: white;
  padding: 80px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.stat-label {
  font-size: 1.1rem;
  opacity: 0.9;
}

/* 产品应用网格 */
.products-applications {
  margin-top: 60px;
}

.products-applications h4 {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-bottom: 30px;
  text-align: center;
  font-weight: 600;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 25px;
}

.product-application {
  background: var(--white);
  border-radius: 12px;
  padding: 25px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  text-align: center;
}

.product-application:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.product-icon {
  width: 60px;
  height: 60px;
  background: var(--secondary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 24px;
  margin: 0 auto 15px;
}

.product-application h5 {
  font-size: 1.1rem;
  color: var(--primary-color);
  margin-bottom: 10px;
  font-weight: 600;
}

.product-application p {
  color: #718096;
  font-size: 0.9rem;
}

/* 产品特性 */
.features {
  background: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 30px;
}

.feature-card {
  background: var(--white);
  border-radius: 12px;
  padding: 40px 30px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--gray-light);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-color);
}

.feature-icon {
  width: 52px;
  height: 52px;
  background: var(--secondary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 28px;
}

.application-text li {
    list-style: none;
    position: relative;
    padding-left: 20px;
    margin-bottom: 8px;
}

.application-text li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--warning-color); 
    font-size: 22px; 
}

.feature-card h3 {
  margin-bottom: 15px;
  color: var(--primary-color);
  font-weight: 600;
}

/* 产品详情主体 */
.product-detail {
  padding: 80px 0;
  background: var(--light-bg);
}

.product-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

/* 产品图片区域 */
.product-gallery {
  position: sticky;
  top: 100px;
}

.main-image {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  margin-bottom: 20px;
  position: relative;
}

.main-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s ease;
}

/* 视频播放按钮 */
.video-play-btn {
    position: absolute;
    right: 15px;
    bottom: 15px;
    width: 55px;
    height: 55px;
    background: rgba(255, 0, 80, 0.85);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    cursor: pointer;
    transition: 0.3s;
    box-shadow: 0 0 15px rgba(255,0,80,0.6);
}
.video-play-btn:hover {
    box-shadow: 0 0 22px rgba(255,0,80,0.9);
}

/* 弹出视频窗口 */
.video-modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.95);
    z-index: 99999;
    align-items: center;
    justify-content: center;
}

.video-content {
    position: relative;
    background: #000;
    padding: 10px;
    border-radius: 10px;
}

.video-content video {
    width: 500px;
    max-width: 500px;
    height: 360px;
    border-radius: 10px;
}

/* 关闭按钮 */
.video-close {
    position: absolute;
    top: 0;
    right: 0;
    font-size: 32px;
    color: #fff;
    cursor: pointer;
    width: 50px;
    height: 50px;
    text-align: center;
    line-height: 50px;
    z-index: 11;
}

.image-slider {
  display: flex;
  gap: 15px;
  overflow-x: auto;
  padding-bottom: 10px;
}

.thumbnail {
  width: 80px;
  height: 80px;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  flex-shrink: 0;
}

.thumbnail.active {
  border-color: var(--secondary-color);
}

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

/* 产品信息区域 */
.product-info {
  background: var(--white);
  border-radius: 12px;
  padding: 40px;
}

.product-title {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 15px;
  font-weight: 700;
}

.product-subtitle {
  font-size: 1.1rem;
  color: #718096;
  margin-bottom: 25px;
}

.product-price {
  font-size: 1.8rem;
  color: var(--secondary-color);
  font-weight: 700;
  margin-bottom: 25px;
}

.product-description {
  color: #4a5568;
  margin-bottom: 30px;
  line-height: 1.7;
}

/* 产品特性 */
.product-features {
  margin-bottom: 30px;
}
.product-features .feature-icon {
    width: 28px;
    height: 28px;
    font-size: 16px;
}

.features-title {
  font-size: 1.3rem;
  color: var(--primary-color);
  margin-bottom: 15px;
  font-weight: 600;
}

/* 标签导航 */
.product-tabs {
  margin-top: 60px;
}

.tab-nav {
  display: flex;
  border-bottom: 1px solid var(--gray-light);
  padding-bottom: 20px;
  margin-bottom: 30px;
}

.tab-btn {
  padding: 15px 25px;
  background: transparent;
  border: none;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  border-bottom: 3px solid transparent;
}

.tab-btn.active {
  border-bottom-color: var(--secondary-color);
}

.tab-content {
  display: none;
  animation: fadeIn 0.5s ease;
}

.tab-content.active {
  display: block;
}

/* 参数表格：科技感样式 */
.specs-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  background: #fff;
}

/* 表头 */
.specs-table th {
  background: linear-gradient(90deg, #003b8e, #0078ff);
  color: #fff;
  font-weight: 600;
  padding: 16px 18px;
  text-align: left;
  letter-spacing: 0.3px;
  position: relative;
}

/* 表格主体 */
.specs-table td {
  padding: 14px 18px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  color: #333;
  font-size: 0.95rem;
  transition: background 0.3s ease, transform 0.2s ease;
}

/* 鼠标悬停行 */
.specs-table tr:hover td {
  background: rgba(0, 120, 255, 0.05);
  transform: translateX(3px);
}

/* 首列加粗 */
.specs-table td:first-child {
  font-weight: 500;
  color: var(--primary-color, #003b8e);
}

/* 响应式（小屏自动滚动） */
@media (max-width: 768px) {
  .specs-table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
    border-radius: 8px;
  }
  .specs-table th,
  .specs-table td {
    padding: 12px 14px;
  }
}


/* 定制选项 */
.customization-options {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.option-group {
  margin-bottom: 20px;
}

.option-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--primary-color);
}

.option-select,
.option-input {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid var(--gray-light);
  border-radius: var(--radius);
  font-family: "Inter", sans-serif;
  transition: var(--transition);
}

.option-select:focus,
.option-input:focus {
  outline: none;
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.1);
}

/* 应用领域 */
.applications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(420px, 1fr));
  gap: 25px;
}

.application-card {
  background: var(--white);
  border-radius: 12px;
  padding: 25px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  text-align: center;
}

.application-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.application-card h4 {
  margin-bottom: 10px;
  color: var(--primary-color);
  font-weight: 600;
}

/* 相关产品 */
.related-products {
  background: var(--white);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 30px;
}

.product-card {
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.product-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.product-card-img {
  height: 200px;
  overflow: hidden;
}

.product-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.product-card-info {
  padding: 20px;
}

.product-card-title {
  font-size: 1.2rem;
  color: var(--primary-color);
  margin-bottom: 10px;
  font-weight: 600;
}

.product-card-price {
  font-size: 1.3rem;
  color: var(--secondary-color);
  font-weight: 700;
  margin-bottom: 15px;
}

/* ===== 高端科技风 Footer ===== */
footer {
  position: relative;
  background: linear-gradient(135deg, #0a0f1a 0%, #101a2c 100%);
  color: #e0e6f0;
  padding: 80px 0 30px;
  overflow: hidden;
}

/* 背景发光线条层 */
footer::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -20%;
  width: 140%;
  height: 200%;
  background: repeating-linear-gradient(
    135deg,
    rgba(0, 242, 255, 0.04) 0px,
    rgba(0, 242, 255, 0.04) 1px,
    transparent 1px,
    transparent 12px
  );
  animation: moveLines 12s linear infinite;
  z-index: 0;
  pointer-events: none;
}

/* 背景发光渐变层 */
footer::after {
  content: "";
  position: absolute;
  bottom: -200px;
  right: -200px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 242, 255, 0.25) 0%, transparent 70%);
  filter: blur(100px);
  z-index: 0;
  pointer-events: none;
}

@keyframes moveLines {
  from { transform: translateX(0) rotate(0deg); }
  to { transform: translateX(-100px) rotate(1deg); }
}

/* ===== 内容布局 ===== */
.footer-content {
  position: relative;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 50px;
  z-index: 1;
}

.footer-column h3 {
  font-size: 1.2rem;
  margin-bottom: 20px;
  position: relative;
  color: #00f2ff;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

.footer-column h3::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 45px;
  height: 2px;
  background: linear-gradient(90deg, #00f2ff, transparent);
}

.footer-column ul li {
  margin-bottom: 12px;
  transition: all 0.3s ease;
}

.footer-column ul li a {
  color: #d2d9e3;
  text-decoration: none;
  font-size: 0.95rem;
  transition: all 0.3s ease;
}

.footer-column ul li a:hover {
  color: #00f2ff;
  padding-left: 6px;
}

/* ====== WhatsApp QR (footer) ====== */
/* 容器（放在 footer 中） */
.fwa {
  --size: 168px; /* 可调整小图尺寸 */
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--size);
  height: var(--size);
  border-radius: 12px;
  padding: 6px;
  margin:15px 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  box-shadow:
    0 6px 18px rgba(0, 30, 80, 0.25),
    inset 0 1px 0 rgba(255,255,255,0.03);
  border: 1px solid rgba(0,242,255,0.08);
  cursor: pointer;
  transition: transform 0.28s ease, box-shadow 0.28s ease;
  overflow: visible;
  z-index: 2;
}

/* 小图样式 */
.fwa img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
  transform-origin: center;
  transition: transform 0.28s ease, filter 0.28s ease;
  filter: drop-shadow(0 4px 12px rgba(0, 242, 255, 0.12));
}

/* 悬停 / 焦点 */
.fwa:hover,
.fwa:focus-within {
  transform: translateY(-6px) scale(1.03);
  box-shadow:
    0 14px 40px rgba(0, 130, 255, 0.18),
    inset 0 1px 0 rgba(255,255,255,0.03);
}
.fwa:hover img,
.fwa:focus-within img {
  transform: scale(1.06) rotate(-2deg);
  filter: drop-shadow(0 6px 18px rgba(0, 242, 255, 0.18));
}

/* 发光脉冲环（伪元素） */
.fwa::after {
  content: "";
  position: absolute;
  inset: -8px;
  border-radius: 14px;
  background: radial-gradient(circle at 30% 20%, rgba(0,242,255,0.12), transparent 20%),
              radial-gradient(circle at 70% 80%, rgba(0,120,255,0.06), transparent 30%);
  z-index: -1;
  transition: opacity 0.3s ease, transform 0.3s ease;
  opacity: 0.8;
}
.fwa::before {
  /* 微弱动感脉冲环 */
  content: "";
  position: absolute;
  left: 50%; top: 50%;
  width: calc(var(--size) + 28px);
  height: calc(var(--size) + 28px);
  transform: translate(-50%, -50%) scale(0.9);
  border-radius: 18px;
  box-shadow: 0 0 24px rgba(0, 180, 255, 0.12);
  opacity: 0;
  transition: opacity 0.4s ease, transform 0.4s ease;
  z-index: -2;
}
.fwa:hover::before,
.fwa:focus-within::before {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1.06);
  animation: fwaPulse 1.8s ease-out infinite;
}
@keyframes fwaPulse {
  0% { transform: translate(-50%, -50%) scale(0.95); opacity: 0.7; }
  70% { transform: translate(-50%, -50%) scale(1.15); opacity: 0; }
  100% { transform: translate(-50%, -50%) scale(0.95); opacity: 0; }
}

/* 可访问焦点样式 */
.fwa:focus {
  outline: 3px solid rgba(0,242,255,0.14);
  outline-offset: 4px;
}

/* ====== Modal / 放大预览样式 ====== */
.fwa-modal {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 9999;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.25s ease;
}
.fwa-modal[aria-hidden="false"] {
  pointer-events: auto;
  opacity: 1;
}


/* 社交图标发光 */
.social-links {
  display: flex;
  gap: 15px;
  margin-top: 25px;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: rgba(0, 242, 255, 0.08);
  border: 1px solid rgba(0, 242, 255, 0.2);
  border-radius: 50%;
  color: #00f2ff;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}

.social-links a:hover {
  background: rgba(0, 242, 255, 0.25);
  box-shadow: 0 0 15px rgba(0, 242, 255, 0.6);
  transform: translateY(-3px);
}

/* 动态光晕 */
.social-links a::before {
  content: "";
  position: absolute;
  width: 200%;
  height: 200%;
  top: -50%;
  left: -50%;
  background: conic-gradient(from 0deg, transparent, rgba(0, 242, 255, 0.6), transparent 50%);
  animation: rotateGlow 3s linear infinite;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.social-links a:hover::before {
  opacity: 1;
}

@keyframes rotateGlow {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* 版权信息 */
.copyright {
  position: relative;
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 14px;
  opacity: 0.7;
  z-index: 1;
}

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

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}