/* ============================================================
 * 关于我们页面样式 (about.html)
 * 设计：蓝色大气风，呼应项目主色 #1E9FFF
 * ============================================================ */

/* ===== Hero 头部 ===== */
.ab-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #1E9FFF 0%, #4FACFE 50%, #00C9FF 100%);
  color: #fff;
  padding: 80px 20px 90px;
  text-align: center;
}
.ab-hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(255,255,255,.18) 0, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255,255,255,.12) 0, transparent 50%);
  pointer-events: none;
}
.ab-hero-inner {
  position: relative;
  max-width: 1100px;
  margin: 0 auto;
}
.ab-hero h1 {
  font-size: 42px;
  font-weight: 700;
  margin: 0 0 14px;
  letter-spacing: 2px;
  text-shadow: 0 2px 12px rgba(0,0,0,.12);
}
.ab-hero-sub {
  font-size: 18px;
  margin: 0 0 32px;
  opacity: .92;
  letter-spacing: 1px;
}
.ab-hero-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}
.ab-hero-tag {
  display: inline-block;
  padding: 8px 18px;
  background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.35);
  border-radius: 999px;
  font-size: 14px;
  backdrop-filter: blur(6px);
  transition: all .25s;
}
.ab-hero-tag:hover {
  background: rgba(255,255,255,.28);
  transform: translateY(-2px);
}

/* ===== 通用 section 标题 ===== */
.ab-section {
  padding: 60px 0 30px;
}
.ab-h2 {
  font-size: 30px;
  font-weight: 700;
  color: #303133;
  text-align: center;
  margin: 0 0 12px;
  position: relative;
}
.ab-h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  margin: 14px auto 0;
  background: linear-gradient(90deg, #1E9FFF, #4FACFE);
  border-radius: 2px;
}
.ab-section-desc {
  max-width: 720px;
  margin: 0 auto 40px;
  text-align: center;
  font-size: 15px;
  line-height: 1.8;
  color: #606266;
}

/* ===== 品牌故事 ===== */
.ab-story-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 50px;
  align-items: center;
  margin-top: 30px;
}
.ab-story-text p {
  font-size: 15px;
  line-height: 1.9;
  color: #606266;
  margin: 0 0 16px;
}
.ab-story-text strong {
  color: #1E9FFF;
  font-weight: 600;
}
.ab-story-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.ab-stat {
  background: linear-gradient(135deg, #fff 0%, #F0F9FF 100%);
  border: 1px solid #e4e7ed;
  border-radius: 12px;
  padding: 28px 20px;
  text-align: center;
  transition: all .3s;
}
.ab-stat:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(30,159,255,.15);
  border-color: #1E9FFF;
}
.ab-stat-num {
  font-size: 36px;
  font-weight: 700;
  color: #1E9FFF;
  line-height: 1;
  margin-bottom: 8px;
}
.ab-stat-label {
  font-size: 14px;
  color: #909399;
}

/* ===== 使命卡片 ===== */
.ab-mission-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 30px;
}
.ab-mission-card {
  background: #fff;
  border: 1px solid #e4e7ed;
  border-radius: 12px;
  padding: 32px 24px;
  text-align: center;
  transition: all .3s;
  position: relative;
  overflow: hidden;
}
.ab-mission-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #1E9FFF, #4FACFE);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s;
}
.ab-mission-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(30,159,255,.12);
  border-color: #c6e2ff;
}
.ab-mission-card:hover::before { transform: scaleX(1); }
.ab-mission-icon {
  font-size: 44px;
  margin-bottom: 16px;
  display: inline-block;
  filter: drop-shadow(0 4px 8px rgba(30,159,255,.15));
}
.ab-mission-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: #303133;
  margin: 0 0 12px;
}
.ab-mission-card p {
  font-size: 13.5px;
  line-height: 1.7;
  color: #606266;
  margin: 0;
}

/* ===== 联系我们 ===== */
.ab-contact {
  padding-bottom: 60px;
}
.ab-contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  max-width: 720px;
  margin: 30px auto 0;
  gap: 30px;
}

/* 联系信息卡片 */
.ab-contact-info {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.ab-info-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: #fff;
  border: 1px solid #e4e7ed;
  border-left: 3px solid #1E9FFF;
  border-radius: 8px;
  padding: 18px 20px;
  transition: all .25s;
}
.ab-info-card:hover {
  box-shadow: 0 8px 20px rgba(30,159,255,.10);
  transform: translateX(2px);
}
.ab-info-icon {
  font-size: 24px;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #E6F4FF 0%, #BAE0FF 100%);
  border-radius: 50%;
}
.ab-info-body h4 {
  font-size: 14px;
  font-weight: 600;
  color: #909399;
  margin: 0 0 6px;
}
.ab-info-body p {
  font-size: 14.5px;
  color: #303133;
  margin: 0;
  word-break: break-all;
}

/* 表单卡片 */
.ab-form-card {
  background: #fff;
  border: 1px solid #e4e7ed;
  border-radius: 12px;
  padding: 32px 28px;
  box-shadow: 0 4px 16px rgba(0,0,0,.04);
}
.ab-form-title {
  font-size: 20px;
  font-weight: 600;
  color: #303133;
  margin: 0 0 24px;
  padding-bottom: 14px;
  border-bottom: 1px solid #ebeef5;
  display: flex;
  align-items: center;
}
.ab-form-title::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 18px;
  background: #1E9FFF;
  border-radius: 2px;
  margin-right: 10px;
}
.ab-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.ab-form-field {
  margin-bottom: 16px;
  position: relative;
}
.ab-form-row .ab-form-field { margin-bottom: 0; }
.ab-form-field label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: #606266;
  margin-bottom: 6px;
}
.ab-req {
  color: #F56C6C;
  margin-left: 2px;
}
.ab-opt {
  color: #C0C4CC;
  font-size: 12px;
  margin-left: 4px;
  font-weight: normal;
}
.ab-form-field input,
.ab-form-field select,
.ab-form-field textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid #dcdfe6;
  border-radius: 6px;
  font-size: 14px;
  color: #303133;
  background: #fff;
  transition: all .2s;
  font-family: inherit;
  box-sizing: border-box;
}
.ab-form-field textarea {
  resize: vertical;
  min-height: 110px;
  line-height: 1.6;
}
.ab-form-field input:focus,
.ab-form-field select:focus,
.ab-form-field textarea:focus {
  outline: none;
  border-color: #1E9FFF;
  box-shadow: 0 0 0 3px rgba(30,159,255,.15);
}
.ab-form-field input::placeholder,
.ab-form-field textarea::placeholder {
  color: #C0C4CC;
}
.ab-form-tip {
  text-align: right;
  font-size: 12px;
  color: #909399;
  margin-top: 4px;
}
.ab-form-actions {
  display: flex;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
}
.ab-form-msg {
  margin-top: 14px;
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 14px;
  display: none;
}
.ab-msg-ok {
  display: block;
  background: #f0f9eb;
  color: #67c23a;
  border: 1px solid #e1f3d8;
}
.ab-msg-err {
  display: block;
  background: #fef0f0;
  color: #f56c6c;
  border: 1px solid #fde2e2;
}
.ab-msg-loading {
  display: block;
  background: #f4f4f5;
  color: #909399;
  border: 1px solid #e9e9eb;
}

/* ===== 响应式 ===== */
@media (max-width: 960px) {
  .ab-hero { padding: 60px 20px 70px; }
  .ab-hero h1 { font-size: 32px; }
  .ab-hero-sub { font-size: 16px; }
  .ab-section { padding: 40px 0 20px; }
  .ab-h2 { font-size: 24px; }
  .ab-story-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .ab-mission-grid {
    grid-template-columns: 1fr 1fr;
  }
  .ab-contact-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .ab-form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .ab-form-row .ab-form-field { margin-bottom: 16px; }
  .ab-form-card { padding: 24px 20px; }
}
@media (max-width: 560px) {
  .ab-hero { padding: 50px 16px 60px; }
  .ab-hero h1 { font-size: 26px; letter-spacing: 1px; }
  .ab-hero-tags { gap: 8px; }
  .ab-hero-tag { padding: 6px 12px; font-size: 13px; }
  .ab-mission-grid {
    grid-template-columns: 1fr;
  }
  .ab-story-stats {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .ab-stat { padding: 20px 12px; }
  .ab-stat-num { font-size: 28px; }
  .ab-form-actions .ys-btn { flex: 1; }
}