.rd-industries {
  padding: clamp(30px, 4.166667vw, 80px) 0;
  background: #F7F6F2;
}

/* ============ 标题区 ============ */
.rd-sec-head {
  max-width: 780px;
  margin-bottom: 56px;
}
.rd-sec-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: clamp(14px, 0.78vw, 15px);
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: #1d4197;
  margin-bottom: 16px;
}
.rd-sec-head .eyebrow::before {
  content: "";
  width: 22px;
  height: 1.5px;
  background: #1d4197;
}
.rd-sec-head h2 {
  margin: 0 0 18px;
  font-size: clamp(24px, 2.30vw, 44px);
  line-height: 1.15;
  font-weight: 600;
  color: #111;
}
.rd-sec-head p {
  margin: 0;
  font-size: clamp(14px, 0.83vw, 16px);
  line-height: 1.7;
  color: #161616;
}

/* ============ 网格 ============ */
.rd-ind-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

/* ============ 卡片 ============ */
.rd-ind {
  background: #fff;
  border: 1px solid #dde3e8;
  border-radius: 10px;
  padding: 30px 26px 28px;
  box-sizing: border-box;
  position: relative;
  overflow: hidden;
  transition: all .24s ease;
}
.rd-ind::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: #e6ebef;
  transition: background .24s ease;
}
.rd-ind:hover {
  box-shadow: 0 14px 34px rgba(14,26,36,.09);
  border-color: transparent;
}
.rd-ind:hover::before {background: #1d4197;}

/* 图标 */
.rd-ind .ico {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: #1d419729;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.rd-ind .ico svg {
  width: 22px;
  height: 22px;
  stroke: #1d4197;
  fill: none;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* 文字 */
.rd-ind h3 {
  font-size: clamp(15px, 0.94vw, 18px);
  color: #0e1a24;
  margin: 0 0 10px;
}
.rd-ind p {
  font-size: 14px;
  line-height: 1.72;
  color: #4a5a68;
  margin: 0 0 16px;
}

/* 要点列表 */
.rd-ind ul {
  list-style: none;
  border-top: 1px dashed #dde3e8;
  padding: 15px 0 0;
  margin: 0;
}
.rd-ind ul li {
  font-size: 14px;
  color: #5b6a77;
  line-height: 1.58;
  padding-left: 16px;
  position: relative;
  margin-bottom: 8px;
}
.rd-ind ul li:last-child { margin-bottom: 0; }
.rd-ind ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #1d4197;
}

/* ============ 响应式 ============ */
@media screen and (max-width: 1280px) {
  .rd-ind { padding: 26px 22px 24px; }
}
@media screen and (max-width: 1024px) {
  .rd-ind-grid { grid-template-columns: repeat(2, 1fr); }
  .rd-sec-head { margin-bottom: 40px; }
}
@media screen and (max-width: 640px) {
  .rd-ind-grid { grid-template-columns: 1fr; gap: 16px; }
  .rd-ind { padding: 24px 20px 22px; }
  .rd-sec-head { margin-bottom: 30px; }
}