* { box-sizing: border-box; margin: 0; padding: 0; }
body { background-color: #fafbfc; font-family: "PingFang SC", "Lantinghei SC", "Microsoft YaHei", sans-serif; color: #2c3e50; overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
.laserwrap { max-width: 1200px; margin: 0 auto; padding: 0 15px; }
.lasertopbar { background: #fdfdfd; border-bottom: 1px solid #e1e8ed; font-size: 13px; line-height: 32px; height: 32px; color: #7f8c8d; }
.lasertopbar .laserwrap { display: flex; justify-content: space-between; }
.lasersep { margin: 0 6px; color: #d1d8e0; }
.laserheader { background: #ffffff; padding: 18px 0; border-bottom: 1px solid #e1e8ed; }
.laserheadflex { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.laserlogo img { height: 42px; max-width: 200px; object-fit: contain; display: block; }
.lasersearchform { display: flex; flex: 1; max-width: 450px; border: 2px solid #1e88e5; border-radius: 4px; overflow: hidden; background: #fff; }
.lasersearchinput { flex: 1; border: none; padding: 0 14px; height: 34px; outline: none; font-size: 14px; }
.lasersearchbtn { background: #1e88e5; color: #ffffff; border: none; padding: 0 18px; height: 34px; cursor: pointer; font-size: 13px; font-weight: bold; }
.lasernavbar { background: #1e88e5; height: 44px; }
.lasernavflex { display: flex; align-items: center; gap: 2px; overflow-x: auto; white-space: nowrap; }
.lasernavitem { color: #ffffff; padding: 0 18px; line-height: 44px; height: 44px; font-size: 14px; font-weight: bold; display: inline-block; transition: background 0.2s; }
.lasernavitem:hover, .lasernavitem.active { background: #1565c0; }
.lasermain { margin: 25px auto; }
.laserbanner img { width: 100%; height: 220px; object-fit: cover; border-radius: 6px; border: 1px solid #e1e8ed; margin-bottom: 20px; }
.lasersec { background: #ffffff; border-radius: 8px; border: 1px solid #e1e8ed; padding: 18px; margin-bottom: 25px; }
.lasersectitle { font-size: 16px; font-weight: bold; color: #1e88e5; border-bottom: 2px solid #1e88e5; padding-bottom: 8px; margin-bottom: 20px; text-align: center; }
.lasergrid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px; }
@media (max-width: 1024px) { .lasergrid4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .lasergrid4 { grid-template-columns: repeat(1, 1fr); } }
.lasercard { border: 1px solid #e1e8ed; border-radius: 6px; padding: 12px; background: #ffffff; display: flex; flex-direction: column; justify-content: space-between; transition: border-color 0.2s; }
.lasercard:hover { border-color: #1e88e5; }
.laserimgbox { width: 100%; height: 120px; overflow: hidden; background: #fafafa; border-radius: 4px; margin-bottom: 8px; display: flex; align-items: center; justify-content: center; }
.laserimgbox img { max-width: 100%; max-height: 100px; object-fit: contain; }
.lasertitle { font-size: 13px; font-weight: bold; color: #2c3e50; text-align: center; margin-bottom: 8px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.laserinfo { display: flex; justify-content: space-between; align-items: center; font-size: 11px; }
.laserprice { color: #e53e3e; font-size: 14px; font-weight: bold; }
.laserstock { color: #999; }
.lasercol3grid { display: grid; grid-template-columns: 1fr 340px 340px; gap: 15px; }
@media (max-width: 992px) { .lasercol3grid { grid-template-columns: 1fr; } }
.lasercolumnbox { background: #ffffff; border-radius: 8px; border: 1px solid #e1e8ed; padding: 15px; }
.lasercolhead { font-size: 14px; font-weight: bold; color: #1e88e5; border-bottom: 2px solid #1e88e5; padding-bottom: 8px; margin-bottom: 12px; }
.laserranklist { list-style: none; }
.laserrankitem { display: flex; align-items: center; justify-content: space-between; padding: 6px 0; border-bottom: 1px dashed #f0f3f6; font-size: 12px; }
.laserranknum { width: 18px; height: 18px; background: #ccd6dd; color: #fff; text-align: center; line-height: 18px; border-radius: 3px; font-size: 10px; font-weight: bold; margin-right: 8px; flex-shrink: 0; }
.laserrankitem:nth-child(-n+3) .laserranknum { background: #1e88e5; }
.laserrankname { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: #4a5568; }
.laserleftbox { }
.laserfeaturedrow { display: grid; grid-template-columns: 1fr; gap: 12px; border-bottom: 1px dashed #ebdcb9; padding-bottom: 12px; margin-bottom: 12px; }
.laserfeatureitem { display: flex; gap: 10px; align-items: center; }
.laserfeatureimg { width: 100%; height: 90px; object-fit: cover; border-radius: 3px; border: 1px solid #ebdcb9; flex-shrink: 0; }
.laserfeatureinfo { flex: 1; overflow: hidden; }
.laserfeaturetitle { font-size: 12px; font-weight: bold; color: #3e2723; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-bottom: 4px; }
.laserfeaturetitle a:hover { color: #1e88e5; }
.laserfeatureprice { color: #b71c1c; font-size: 13px; font-weight: bold; }
.lasercardbox { background: #ffffff; border-radius: 8px; border: 1px solid #e1e8ed; padding: 30px; max-width: 650px; margin: 0 auto; }
.laserfooter { background: #222222; color: #888888; padding: 25px 0; text-align: center; font-size: 13px; margin-top: 40px; border-top: 2px solid #1e88e5; }
.laserfooter a { color: #edf2f7; margin-bottom: 6px; display: inline-block; }
.laserfooter p { color: #718096; font-size: 12px; margin-top: 4px; }