* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Microsoft Yahei", "PingFang SC", sans-serif;
}
body {
  background: #f2f2f2;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px 0;
}
.main-wrap {
  width: 1900px;
  margin: 0 auto;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}
.page-block {
  width: 1900px;
  height: 654px;
  position: relative;
  overflow: visible;
  background-size: 1900px 654px;
  background-repeat: no-repeat;
  background-position: center top;
  background-color: #ffffff;
}
/* ==========修复第2页底部内容被遮挡，单独加高页面========== */
.page-block.page-2-block {
  height: 720px;
  background-size: 1900px 720px;
}
/* ========== 第3页：图片真实尺寸1900*356 ========== */
.page-block.page-3 {
  aspect-ratio: 1900 / 356;
  background-size: 100% 100%;
  background-position: center center;
  background-repeat: no-repeat;
}
.text-overlay {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.text-overlay * {
  pointer-events: auto;
}
/* ========== 第1页 封面 ========== */
.page-1 .text-overlay {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #222;
}
.page-1 .slogan-top {
  position: absolute;
  left: 250px;
  top: 60px;
  font-size: 38px;
  color: #ffffff;
  letter-spacing: 6px;
  margin-bottom: 0;
  font-weight: 400;
  text-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
.page-1 .year-text {
  font-size: 110px;
  font-weight: 900;
  line-height: 1;
  color: #1a1a1a;
  letter-spacing: 6px;
  margin-top: -6px;
}
.page-1 .show-title {
  font-size: 48px;
  font-weight: 700;
  margin-top: 12px;
  color: #1a1a1a;
  letter-spacing: 2px;
}
.page-1 .host-wrap {
  display: flex;
  align-items: center;
  font-size: 20px;
  margin-top: 28px;
  color: #1a1a1a;
  background: rgba(255,255,255,0.75);
  padding: 8px 24px 8px 18px;
  border-radius: 40px;
  backdrop-filter: blur(2px);
}
.page-1 .host-tag {
  background-color: #e61b23;
  color: #fff;
  padding: 5px 20px;
  border-radius: 30px;
  font-weight: 700;
  margin-right: 16px;
  font-size: 18px;
}
/* ========== 第2页 展会信息 ========== */
.page-2 .section-title-red {
  font-size: 30px;
  color: #e61b23;
  font-weight: 700;
  position: absolute;
  left: 250px;
  top: 64px;
  letter-spacing: 2px;
}
.page-2 .section-title-red::before {
  content: "";
  display: inline-block;
  width:12px;
  height:12px;
  background-color:#e61b23;
  border-radius:50%;
  margin-right:12px;
  vertical-align:middle;
}
.page-2 .deco-line {
  position: absolute;
  left: 478px;
  top: 64px;
  width: 972px;
  height: 37px;
  background: url('images/pic_03.png') no-repeat center/contain;
  opacity: 0.7;
}
.page-2 .en-big {
  font-size: 80px;
  color: #ffffff;
  font-weight: 800;
  position: absolute;
  left: 250px;
  top: 88px;
  letter-spacing: 4px;
  opacity: 0.95;
  text-shadow:
    0 4px 12px rgba(0,0,0,0.12),
    0 8px 24px rgba(0,0,0,0.08),
    0 12px 40px rgba(0,0,0,0.05);
}
.page-2 .show-subtitle {
  font-size: 40px;
  font-weight: 700;
  text-align: center;
  position: absolute;
  left: 50%;
  top: 240px;
  transform: translateX(-50%);
  color: #1a1a1a;
  letter-spacing: 4px;
  white-space: nowrap;
}
.page-2 .info-list {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 310px;
  width: auto;
  min-width: 580px;
  height: auto;
  overflow: visible;
}
.page-2 .info-item {
  display: flex;
  align-items: center;
  font-size: 20px;
  margin-bottom: 10px;
  color: #1a1a1a;
  background: rgba(255,255,255,0.6);
  padding: 10px 18px 10px 10px;
  border-radius: 40px;
  backdrop-filter: blur(2px);
  transition: transform 0.22s ease, background-color 0.22s ease;
}
/* 整行hover：右移+背景提亮 */
.page-2 .info-item:hover {
  background-color: rgba(255, 255, 255, 0.95);
  transform: translateX(4px);
}
.page-2 .icon-circle {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  margin-right: 18px;
  flex-shrink: 0;
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
  z-index: 1;
  transition: transform 0.22s ease, box-shadow 0.22s ease, background-color 0.22s ease;
}
/* 图标hover动效：去掉红色外描边，保留放大、淡红背景和柔和光晕 */
.page-2 .info-item:hover .icon-circle {
  transform: scale(1.08);
  background-color: rgba(230, 27, 35, 0.08);
  box-shadow: 0 0 18px rgba(230, 27, 35, 0.14);
}
/* 点击按压反馈 */
.page-2 .info-item:active .icon-circle {
  transform: scale(1.02);
}
.page-2 .info-item:nth-child(1) .icon-circle {
  background-image: url('images/icon_04.png');
}
.page-2 .info-item:nth-child(2) .icon-circle {
  background-image: url('images/icon_06.png');
}
.page-2 .info-item:nth-child(3) .icon-circle {
  background-image: url('images/icon_07.png');
}
.page-2 .info-item:nth-child(4) .icon-circle {
  background-image: url('images/icon_08.png');
}
.page-2 .info-label {
  width: 80px;
  border-bottom: 2px solid #e61b23;
  margin-right: 35px;
  font-weight: 700;
  font-size: 18px;
  padding-bottom: 2px;
}
.page-2 .red-text {
  color: #e61b23;
  font-weight: 700;
}
/* ========== 第3页文字 ========== */
.page-3 .welcome-text {
  font-size: 40px;
  letter-spacing: 25px;
  text-align: left;
  position: absolute;
  left: 18%;
  top: 32%;
  transform: none;
  color: #1a1a1a;
  font-weight: 600;
  background: transparent;
  padding: 0;
  border-radius: 0;
  backdrop-filter: none;
  white-space: nowrap;
}
/* ========== 第4页 产品表格 ========== */
.page-4 .page-4-title {
  font-size: 30px;
  color: #e61b23;
  font-weight: 700;
  position: absolute;
  left: 250px;
  top: 34px;
  letter-spacing: 2px;
}
.page-4 .page-4-title::before {
  content: "";
  display: inline-block;
  width:12px;
  height:12px;
  background-color:#e61b23;
  border-radius:50%;
  margin-right:12px;
  vertical-align:middle;
}
.page-4 .deco-line-products {
  position: absolute;
  left: 478px;
  top: 34px;
  width: 972px;
  height: 37px;
  background: url('images/pic_03.png') no-repeat center/contain;
  opacity: 0.7;
}
.page-4 .en-big-products {
  font-size: 80px;
  color: #ffffff;
  font-weight: 800;
  position: absolute;
  left: 250px;
  top: 58px;
  letter-spacing: 4px;
  opacity: 0.95;
  text-shadow:
    0 4px 12px rgba(0,0,0,0.12),
    0 8px 24px rgba(0,0,0,0.08),
    0 12px 40px rgba(0,0,0,0.05);
}
/* 表格：左对齐标题，左右边距250px，外框直角；下边框：2px #e61b23 */
.page-4 .table-wrap {
  position: absolute;
  left: 250px;
  top: 190px;
  bottom: 40px;
  width: 1400px;
  border-radius: 0;
  border: 2px solid #e61b23;
  border-top: none;
  border-left: none;
  border-right: none;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.prod-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 17px;
  color: #1a1a1a;
  flex: 1;
}
.prod-table thead th {
  background: #4a4a4a;
  color: #ffffff;
  text-align: left;
  padding: 14px 20px;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 1px;
  border: none;
}
.prod-table thead {
  position: relative;
}
/* 表头下分隔线：2px，颜色统一#e61b23 */
.prod-table thead::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -20px;
  width: 100%;
  height: 2px;
  background: #e61b23;
  pointer-events: none;
}
.prod-table tbody tr:first-child td {
  padding-top: 24px;
}
/* 产品名列加宽240px，防止标签溢出 */
.prod-table tbody td:first-child {
  width: 240px;
  min-width: 240px;
  max-width: 240px;
}
.prod-table tbody td {
  padding: 15px 20px;
  border-bottom: 1px solid #e0e0e0;
  vertical-align: middle;
  background: transparent;
}
.prod-table tbody tr:last-child td {
  border-bottom: none;
  padding-bottom: 4px;
  vertical-align: bottom;
}
.prod-table thead th:not(:last-child) {
  border-right: 2px solid #ffffff;
}
/* 产品红色标签：统一200px宽，文字居中，不溢出单元格 */
.prod-name-tag {
  background: #e61b23;
  color: #fff;
  font-weight: 700;
  padding: 5px 0;
  border-radius: 30px;
  display: inline-block;
  font-size: 16px;
  letter-spacing: 0.5px;
  width: 200px;
  text-align: center;
  white-space: nowrap;
}
/* ========== 第5页 联系我们 ========== */
.page-5 .contact-title {
  font-size: 32px;
  font-weight: 700;
  position: absolute;
  left: 50%;
  top: 222px;
  transform: translateX(-50%);
  color: #1a1a1a;
  letter-spacing: 4px;
  background: transparent;
  padding: 0;
  border-radius: 0;
  backdrop-filter: none;
}
.page-5 .contact-title::after {
  content: "";
  width: 200px;
  height: 4px;
  background: #e61b23;
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 4px;
}
.page-5 .contact-text {
  position: absolute;
  left: 50%;
  top: 310px;
  transform: translateX(-50%);
  font-size: 22px;
  line-height: 2;
  text-align: center;
  color: #1a1a1a;
  background: transparent;
  padding: 0;
  border-radius: 0;
  backdrop-filter: none;
  font-weight: 500;
  letter-spacing: 1px;
  min-width: auto;
}
.text-overlay {
  pointer-events: none;
}
.text-overlay * {
  pointer-events: auto;
}
@media (max-width: 1920px) {
  .main-wrap, .page-block {
    width: 100%;
    height: auto;
    aspect-ratio: 1900 / 654;
    background-size: 100% 100%;
    background-position: center top;
  }
  /*响应式同步处理第2页高度比例*/
  .page-block.page-2-block{
    aspect-ratio: 1900 / 720;
  }
  .page-block.page-3 {
    aspect-ratio: 1900 / 356;
    background-size: 100% 100%;
  }
  .text-overlay {
    width: 100%;
    height: 100%;
    padding: 0;
  }
  .page-1 .slogan-top {
    font-size: clamp(20px, 3vw, 38px);
    left: clamp(80px, 10vw, 250px);
    top: clamp(30px, 4vw, 60px);
  }
  .page-1 .year-text {
    font-size: clamp(60px, 8vw, 110px);
  }
  .page-1 .show-title {
    font-size: clamp(24px, 4vw, 48px);
  }
  .page-1 .host-wrap {
    font-size: clamp(14px, 1.6vw, 20px);
  }
  .page-2 .section-title-red {
    font-size: clamp(18px, 2.2vw, 30px);
    left: clamp(80px, 10vw, 250px);
    top: clamp(4% + 30px, 4% + 30px, 64px);
  }
  .page-2 .deco-line {
    left: clamp(calc(80px + 228px), calc(10vw + 228px), 478px);
    top: clamp(4% + 30px, 4% + 30px, 64px);
    width: clamp(300px, 50vw, 972px);
    height: clamp(18px, 2.5vw, 37px);
    background: url('images/pic_03.png') no-repeat center/contain;
  }
  .page-2 .en-big {
    font-size: clamp(40px, 6vw, 80px);
    left: clamp(80px, 10vw, 250px);
    top: clamp(7% + 30px, 7% + 30px, 88px);
  }
  .page-2 .show-subtitle {
    font-size: clamp(22px, 3vw, 40px);
    top: clamp(28% + 30px, 28% + 30px, 240px);
  }
  .page-2 .info-list {
    width: auto;
    min-width: 40%;
    top: clamp(38%,38%,310px);
    overflow: visible;
  }
  .page-2 .info-item {
    font-size: clamp(14px, 1.6vw, 20px);
    margin-bottom: clamp(6px,1vw,10px);
    padding: clamp(6px,1vw,10px) 18px clamp(6px,1vw,10px) 10px;
  }
  .page-2 .icon-circle {
    width: clamp(44px, 5vw, 72px);
    height: clamp(44px, 5vw, 72px);
    background-size: contain;
    margin-right: clamp(12px, 1.5vw, 18px);
  }
  .page-2 .info-label {
    margin-right: clamp(18px, 2.2vw, 35px);
  }
  .page-3 .welcome-text {
    font-size: clamp(22px, 3vw, 40px);
    left: 18%;
    top: 32%;
    letter-spacing: clamp(16px, 1.8vw, 25px);
  }
  .page-4 .page-4-title {
    font-size: clamp(18px, 2.2vw, 30px);
    left: clamp(80px,10vw,250px);
    top: 4%;
  }
  .page-4 .deco-line-products {
    left: clamp(calc(80px + 228px), calc(10vw + 228px), 478px);
    top: 4%;
    width: clamp(300px, 50vw, 972px);
    height: clamp(18px, 2.5vw, 37px);
    background: url('images/pic_03.png') no-repeat center/contain;
  }
  .page-4 .en-big-products {
    font-size: clamp(40px, 6vw, 80px);
    left: clamp(80px, 10vw, 250px);
    top: 7%;
  }
  /*响应式：表格跟随标题left，宽度自动，左右留白相等，边框粗细同步减小 */
  .page-4 .table-wrap {
    left: clamp(80px,10vw,250px);
    transform: none;
    top: clamp(26%, 26%, 190px);
    bottom: 5%;
    width: calc(100% - clamp(80px,10vw,250px)*2);
    border-radius: 0;
    border: clamp(1px,0.15vw,2px) solid #e61b23;
    border-top: none;
    border-left: none;
    border-right: none;
    overflow: hidden;
    display: flex;
    flex-direction: column;
  }
  .prod-table {
    font-size: clamp(12px, 1.3vw, 17px);
    flex: 1;
  }
  .prod-table thead th {
    font-size: clamp(13px, 1.4vw, 18px);
    padding: 10px 12px;
    border-right: clamp(1px, 0.1vw, 2px) solid #ffffff;
  }
  /* 响应式表头下分隔线高度同步改为2px */
  .prod-table thead::after {
    bottom: -20px;
    height: clamp(1px,0.15vw,2px);
    background:#e61b23;
  }
  .prod-table tbody td {
    padding: clamp(10px, 1.2vw, 15px) clamp(12px, 1.5vw, 20px);
    background: transparent;
  }
  .prod-table tbody tr:first-child td {
    padding-top: clamp(16px, 2vw, 24px);
  }
  /*响应式产品名列同步加宽*/
  .prod-table tbody td:first-child {
    width: clamp(160px, 17vw, 240px);
    min-width: clamp(160px, 17vw, 240px);
    max-width: clamp(160px, 17vw, 240px);
  }
  .prod-table tbody tr:last-child td {
    border-bottom: none;
    padding-bottom: 4px;
    vertical-align: bottom;
  }
  /*响应式产品标签宽度同步*/
  .prod-name-tag {
    font-size: clamp(12px, 1.2vw, 16px);
    padding: 3px 0;
    width: clamp(130px, 14.5vw, 200px);
    text-align: center;
    white-space: nowrap;
  }
  .page-5 .contact-title {
    font-size: clamp(20px, 2.6vw, 32px);
    top: 32%;
    background: transparent;
    padding: 0;
  }
  .page-5 .contact-text {
    font-size: clamp(16px, 1.8vw, 22px);
    top: 44%;
    min-width: auto;
    padding: 0;
    background: transparent;
  }
  .page-5 .contact-title::after {
    width: 40%;
  }
}