body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  background-color: transparent;
  color: #333;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  position: relative;
  z-index: 0;
}

/* 无规则波浪渐变底图 */
.wave-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  overflow: hidden;
  background-color: #f2f6fa;
  pointer-events: none;
}

.wave-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.7;
  animation: blob-float 15s infinite alternate ease-in-out;
}

.blob1 {
  width: 900px;
  height: 900px;
  background: #ffe3d5;
  bottom: -300px;
  left: -200px;
}

.blob2 {
  width: 1000px;
  height: 1000px;
  background: #fcdbd3;
  bottom: -400px;
  right: -200px;
  animation-delay: -5s;
}

.blob3 {
  width: 700px;
  height: 700px;
  background: #e6f1fc;
  top: -100px;
  left: 30%;
  animation-delay: -10s;
}

@keyframes blob-float {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(60px, -40px) scale(1.1); }
}

.wave-svg {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100vw;
  height: 55vh;
  min-height: 450px;
}

* {
  box-sizing: border-box;
}

/* 首页右上角操作区 */
.top-right-actions {
  position: absolute;
  top: 24px;
  right: 32px;
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 100;
}

.action-icon {
  background: none;
  border: none;
  cursor: pointer;
  color: #333;
  padding: 6px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.action-icon:hover {
  background: #f0f0f0;
}

.user-dropdown-container {
  position: relative;
}

.user-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: #fff;
  border: 1px solid #eaeaea;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  border-radius: 8px;
  padding: 8px 0;
  min-width: 120px;
  display: none;
  z-index: 101;
}

.user-dropdown-menu.show {
  display: block;
}

.user-dropdown-item {
  padding: 10px 16px;
  font-size: 14px;
  color: #333;
  cursor: pointer;
  transition: background 0.2s;
  display: flex;
  align-items: center;
  gap: 8px;
  text-align: left;
}

.user-dropdown-item:hover {
  background: #f5f5f5;
}

.app-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 7.5vh; /* 之前是 15vh，减少 50% 变成 7.5vh */
}

/* Header */
.logo-section {
  text-align: center;
  margin-bottom: 30px;
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 33px;
  font-weight: bold;
  color: #0A235E;
  letter-spacing: 2px;
}

.logo img {
  display: block;
  object-fit: contain;
}

.subtitle {
  margin-top: 10px;
  font-size: 13px;
  color: #888;
  letter-spacing: 1px;
  font-weight: 500;
}

/* Search Box */
.search-section {
  width: 100%;
  max-width: 677px; /* 宽度再减少 1/8 (774px -> 677px) */
  margin-bottom: 40px;
  padding: 0 20px;
}

.search-box {
  width: 100%;
  height: 130px;
  border: 2px solid transparent;
  border-radius: 8px;
  position: relative;
  background: linear-gradient(#fff, #fff) padding-box,
              linear-gradient(135deg, #0A235E 0%, #0A235E 75%, #6893FF 100%) border-box;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  transition: all 0.3s;
}

.search-box:focus-within {
  background: linear-gradient(#fff, #fff) padding-box,
              linear-gradient(135deg, #11307A 0%, #11307A 75%, #8BAAFF 100%) border-box;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

.search-box textarea {
  width: 100%;
  height: 100%;
  border: none;
  resize: none;
  padding: 16px 20px;
  font-size: 14px;
  color: #333;
  background: transparent;
  outline: none;
  font-family: inherit;
}

.search-box textarea::placeholder {
  color: #c0c0c0;
}

.search-tag {
  position: absolute;
  bottom: 16px;
  left: 20px;
  background-color: #eef0f7; /* 截图中的淡紫灰背景 */
  padding: 4px 12px; /* 微调间距适应 12px */
  border-radius: 6px; /* 适当加大圆角 */
  font-size: 12px; /* 字号设为 12px */
  font-weight: 900; /* 最粗字重 */
  font-style: italic;
  pointer-events: none;
  letter-spacing: 0.5px; /* 字间距稍微收紧 */
}

.send-btn {
  position: absolute;
  bottom: 16px;
  right: 20px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  cursor: pointer;
  color: #333;
  opacity: 0;
  transform: scale(0.8);
  pointer-events: none;
  transition: all 0.2s ease;
  padding: 0;
}

.send-btn.active {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
}

.send-btn:hover {
  color: #0A235E;
}

.gradient-text {
  /* 渐变文字：左边偏亮蓝，右边偏亮紫 */
  background-image: linear-gradient(90deg, #74a8ff 0%, #b28afb 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* Reports */
.reports-section {
  width: 100%;
  max-width: 677px; /* 同步缩减宽度 */
  padding: 0 20px;
}

.reports-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  gap: 4px;
}

.reports-header h2 {
  font-size: 14px;
  margin: 0;
  color: #111;
  font-weight: bold;
}

.heavyweight-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  color: #555;
  text-decoration: none;
  background: linear-gradient(90deg, #fff0f5, #fff);
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid #ffd1dc;
  transition: all 0.3s;
}

.heavyweight-link:hover {
  background: #ffe4e1;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(255, 42, 133, 0.1);
  color: #333;
}

.heavyweight-text {
  font-weight: bold;
  color: #DD2476;
}

.refresh-btn {
  display: flex;
  align-items: center;
  cursor: pointer;
  color: #ccc;
  font-size: 13px;
  transition: color 0.2s ease;
}

.refresh-btn:hover {
  color: #2D5BCC;
}

.refresh-btn svg {
  margin-right: 4px;
  transition: transform 0.4s ease;
}

.refresh-btn:active svg {
  transform: rotate(180deg);
}

.reports-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  row-gap: 16px;
  column-gap: 30px;
}

.report-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
}

.report-item a {
  color: #444;
  text-decoration: none;
  /* 移除 CSS 原有的溢出截断，由 JS 18个字符长度控制 */
  white-space: normal;
  flex: 1;
}

.report-item a:hover {
  color: #2D5BCC;
}

.icon-pin {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
}

.num {
  width: 16px;
  text-align: center;
  font-weight: bold;
  font-size: 14px;
  font-family: Arial, sans-serif;
}

.num-1 { color: #f5222d; }
.num-2 { color: #fa541c; }
.num-3 { color: #fa8c16; }
.num-4, .num-6, .num-7, .num-8, .num-9, .num-10 { color: #8c8c8c; }

/* ==========================================================================
   核心价值口号区
   ========================================================================== */
.core-value-slogan {
  margin: 20px auto 40px auto;
  max-width: 800px;
  text-align: center;
  padding: 32px 40px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 10px 30px rgba(26, 115, 232, 0.05), inset 0 0 0 1px rgba(255, 255, 255, 0.5);
  position: relative;
  overflow: hidden;
}

/* 顶部点缀渐变线 */
.core-value-slogan::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #1a73e8, #a855f7);
}

.core-value-slogan .slogan-content {
  position: relative;
  z-index: 1;
}

.core-value-slogan .main-slogan {
  font-size: 18px;
  line-height: 1.8;
  color: #333;
  margin: 0 0 16px 0;
  font-weight: 500;
}

.core-value-slogan .highlight-blue {
  color: #1a73e8;
  font-weight: 600;
  padding: 0 4px;
}

.core-value-slogan .highlight-gradient {
  background: linear-gradient(90deg, #1a73e8 0%, #a855f7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 700;
  font-size: 19px;
}

.core-value-slogan .sub-slogan {
  display: inline-block;
  font-size: 16px;
  color: #1a73e8;
  margin: 0;
  font-weight: 600;
  padding: 6px 20px;
  background: rgba(26, 115, 232, 0.08);
  border-radius: 20px;
}

/* ==========================================================================
   应用场景表格
   ========================================================================== */
.use-cases-section {
  width: 100%;
  max-width: 677px;
  margin: 40px auto 0;
  padding: 0 20px;
  text-align: left;
  scroll-margin-top: 20px; /* 预留顶部间距，平滑滚动时不会贴边 */
}

.use-cases-section h2 {
  font-size: 14px;
  font-weight: bold;
  margin: 0 0 8px 0;
  color: #111;
}

.use-cases-intro {
  color: #666;
  font-size: 13px;
  line-height: 1.6;
  margin: 0 0 16px 0;
}

.use-cases-intro strong {
  font-size: 15px; /* 比周围13px的字号大2px */
  font-weight: bold;
}

.use-cases-table-wrapper {
  overflow-x: auto;
  border-radius: 8px;
  border: 1px solid #eaeaea;
  box-shadow: 0 4px 16px rgba(0,0,0,0.04);
}

.use-cases-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  line-height: 1.6;
  text-align: left;
  background: #fff;
}

.use-cases-table th {
  background-color: #f5f5f5;
  color: #333;
  font-weight: 600;
  padding: 12px 16px;
  border-bottom: 1px solid #eaeaea;
}

.use-cases-table td {
  padding: 14px 16px;
  border-bottom: 1px solid #eaeaea;
  color: #555;
  vertical-align: top;
}

/* 灰白相间（斑马纹）样式 */
.use-cases-table tbody tr:nth-child(even) {
  background-color: #f9f9fa;
}

.use-cases-table tr:last-child td {
  border-bottom: none;
}

.use-cases-table ul {
  margin: 0;
  padding-left: 18px;
}

.use-cases-table li {
  margin-bottom: 6px;
}

.use-cases-table li:last-child {
  margin-bottom: 0;
}

.use-cases-table strong {
  color: #333;
  font-weight: 600;
}

/* Expand/Collapse Use Cases */
.use-cases-table tbody.collapsed tr:nth-child(n+3) {
  display: none;
}

.expand-btn-wrapper {
  text-align: center;
  margin-top: 16px;
}

.expand-use-cases-btn {
  background: transparent;
  border: 1px solid #eaeaea;
  color: #555;
  font-size: 13px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 6px 16px;
  border-radius: 20px;
  transition: all 0.2s ease;
}

.expand-use-cases-btn:hover {
  background: #f8f9fa;
  color: #0A235E;
  border-color: #d0d7e5;
}

.expand-use-cases-btn svg {
  transition: transform 0.3s ease;
}

.expand-use-cases-btn.expanded svg {
  transform: rotate(180deg);
}

/* Footer */
.footer {
  margin-top: auto;
  padding: 40px 0 20px;
  font-size: 12px;
  color: #bfbfbf;
  text-align: center;
}

.contact-us {
  cursor: pointer;
  transition: color 0.2s ease;
  display: inline-flex;
  align-items: center;
}

.contact-us:hover {
  color: #0A235E;
}

/* Mobile Responsive */
@media screen and (max-width: 768px) {
  .app-container {
    padding-top: 4vh; /* 在手机端也等比缩小 */
  }
}