:root {
  --brand-blue: #0068b7;
  --black: #111111;
  --gray: #888888;
  --light-gray: #f2f2f2;
  --border-color: #e0e0e0;
}

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

body {
  background-color: #ffffff;
  color: var(--black);
  line-height: 1.4;
  overflow-x: hidden;
}

.layout-container {
  display: flex;
  min-height: 100vh;
}

.info-sidebar {
  width: 40%;
  height: 100vh;
  position: sticky;
  top: 0;
  padding: 60px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-right: 1px solid var(--border-color);
  background: #fff;
  z-index: 10;
}

.brand-area {
  margin-bottom: 40px;
}

.brand-logo {
  display: block;
  height: 100px;
  width: auto;
}

.brand-tag {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--brand-blue);
  text-transform: uppercase;
  margin-bottom: 20px;
  display: block;
}

.main-title {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 10px;
  letter-spacing: -1px;
  color: #3a74be
}

.sub-title {
  font-size: 20px
   line-height: 1.6;
  color: #81868c
}

.data-matrix {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: auto;
  margin-bottom: 60px;
}

.data-item {
  border-top: 2px solid var(--black);
  padding-top: 15px;
}

.data-label {
  font-size: 12px;
  color: var(--gray);
  margin-bottom: 5px;
  text-transform: uppercase;
}

.data-value {
  font-size: 24px;
  font-weight: 600;
}

.data-value.highlight {
  color: var(--brand-blue);
}

.footer-info {
  font-size: 12px;
  color: #ccc;
  display: flex;
  align-items: center;
  gap: 10px;
}

.visual-content {
  width: 60%;
  background-color: #f9f9f9;
}

.report-block {
  border-bottom: 1px solid var(--border-color);
  padding: 80px 60px;
  transition: background 0.3s;
}

.report-block:hover {
  background-color: #fff;
}

.block-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.block-index {
  font-size: 14px;
  font-weight: 700;
  color: var(--brand-blue);
}

.block-title {
  font-size: 24px;
  font-weight: 600;
}

.media-frame {
  width: 100%;
  height: auto;
  background-color: #eeeeee;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.media-frame img,
.media-frame video {
  width: 100%;
  height: auto;
  object-fit: cover;
  min-height: 300px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
  transition: transform 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
  background: #fff;
}

.media-frame video {
  max-height: 80vh;
}

/* 装饰线 */
.decorative-line {
  position: fixed;
  right: 40px;
  top: 0;
  bottom: 0;
  width: 1px;
  background-color: var(--border-color);
  z-index: 5;
}

.brand-area-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: space-between;
  margin-bottom: 30px;
}

.brand-area-inner span {
  font-size: 30px;
  color: #f80202;
}

/* 响应式 */
@media (max-width: 1024px) {
  .layout-container {
    flex-direction: column;
  }

  .info-sidebar {
    width: 100%;
    height: auto;
    position: relative;
    padding: 40px;
  }
  .brand-area-inner {
    flex-direction: column;
  }
  .brand-area-inner span {
    font-size: 18px;
    color: #fa0505;
  }

  .visual-content {
    width: 100%;
  }

  .decorative-line {
    display: none;
  }

  .main-title {
    font-size: 32px;
  }

  .media-frame {
    min-height: 300px;
  }
}