* { box-sizing: border-box; margin: 0; padding: 0; }
body { background-color: #f5f8fa; font-family: "PingFang SC", "Lantinghei SC", "Microsoft YaHei", sans-serif; color: #333; overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
.materialwrap { max-width: 1200px; margin: 0 auto; padding: 0 15px; }
.materialtopbar { background: #f8fafd; border-bottom: 1px solid #e1e8ed; font-size: 13px; line-height: 32px; height: 32px; color: #7f8c8d; }
.materialtopbar .materialwrap { display: flex; justify-content: space-between; }
.materialsep { margin: 0 6px; color: #d1d8e0; }
.materialheader { background: #ffffff; padding: 18px 0; border-bottom: 1px solid #e1e8ed; }
.materialheadflex { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.materiallogo img { height: 42px; max-width: 200px; object-fit: contain; display: block; }
.materialsearchform { display: flex; flex: 1; max-width: 450px; border: 2px solid #0277bd; border-radius: 4px; overflow: hidden; }
.materialsearchinput { flex: 1; border: none; padding: 0 12px; height: 36px; outline: none; font-size: 14px; }
.materialsearchbtn { background: #0277bd; color: #ffffff; border: none; padding: 0 20px; height: 36px; cursor: pointer; font-size: 14px; font-weight: bold; }
.materialnavbar { background: #0277bd; height: 44px; }
.materialnavflex { display: flex; align-items: center; gap: 2px; overflow-x: auto; white-space: nowrap; }
.materialnavitem { color: #ffffff; padding: 0 18px; line-height: 44px; height: 44px; font-size: 14px; font-weight: bold; display: inline-block; transition: background 0.2s; }
.materialnavitem:hover, .materialnavitem.active { background: #01579b; }
.materialmain { margin: 25px auto; }
.materialhero { display: grid; grid-template-columns: 200px 1fr 260px; gap: 15px; margin-bottom: 25px; }
@media (max-width: 992px) { .materialhero { grid-template-columns: 1fr; } }
.materialheroside { background: #ffffff; border-radius: 6px; border: 1px solid #e1e8ed; padding: 12px; }
.materialherosidetitle { font-size: 14px; font-weight: bold; padding-bottom: 10px; border-bottom: 1px solid #edf2f7; color: #0277bd; }
.materialherosidelist { list-style: none; margin-top: 10px; }
.materialherosidelist li a { display: block; padding: 6px 8px; font-size: 13px; color: #4a5568; border-radius: 4px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.materialherosidelist li a:hover { background: #e1f5fe; color: #0277bd; }
.materialheromain { background: #ffffff; border-radius: 6px; border: 1px solid #e1e8ed; padding: 15px; display: flex; flex-direction: column; justify-content: space-between; }
.materialbanner img { width: 100%; height: 160px; object-fit: cover; border-radius: 4px; }
.materialheroaudit { display: flex; justify-content: space-between; margin-top: 10px; gap: 8px; }
.materialaudititem { flex: 1; font-size: 11px; background: #fafbfc; border: 1px solid #eee; padding: 6px; border-radius: 4px; text-align: center; color: #666; font-weight: bold; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.materialquerybox { background: #ffffff; border-radius: 6px; border: 1px solid #e1e8ed; padding: 15px; }
.materialquerytitle { font-size: 14px; font-weight: bold; color: #333; margin-bottom: 12px; border-bottom: 1px solid #eee; padding-bottom: 8px; }
.materialqueryinput { width: 100%; height: 32px; border: 1px solid #e1e8ed; border-radius: 4px; padding: 0 10px; outline: none; font-size: 12px; margin-bottom: 10px; }
.materialquerybtn { width: 100%; height: 32px; background: #0277bd; color: #fff; border: none; border-radius: 4px; font-size: 12px; font-weight: bold; cursor: pointer; }
.materialsec { display: grid; grid-template-columns: 180px 1fr; gap: 15px; margin-bottom: 25px; }
@media (max-width: 992px) { .materialsec { grid-template-columns: 1fr; } }
.materialsecside { border-radius: 6px; padding: 15px; color: #ffffff; display: flex; flex-direction: column; justify-content: space-between; }
.materialsecside.teal { background: #00838f; }
.materialsecside.orange { background: #e65100; }
.materialsecsidehead { font-size: 16px; font-weight: bold; }
.materialsecsidelist { list-style: none; margin-top: 15px; }
.materialsecsidelist li a { display: block; padding: 6px 0; font-size: 12px; border-bottom: 1px dashed rgba(255,255,255,0.2); }
.materialsecsidelist li a:hover { text-decoration: underline; }
.materialgrid4 { background: #ffffff; border-radius: 6px; border: 1px solid #e1e8ed; padding: 15px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
@media (max-width: 1024px) { .materialgrid4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .materialgrid4 { grid-template-columns: repeat(1, 1fr); } }
.materialcard { border: 1px solid #f0f3f6; border-radius: 6px; padding: 10px; display: flex; flex-direction: column; justify-content: space-between; background: #ffffff; transition: border-color 0.2s; }
.materialcard:hover { border-color: #0277bd; }
.materialimgbox { width: 100%; height: 110px; overflow: hidden; background: #fafafa; border-radius: 4px; margin-bottom: 8px; }
.materialimgbox img { width: 100%; height: 100%; object-fit: cover; }
.materialtitle { font-size: 13px; font-weight: bold; color: #2c3e50; margin-bottom: 6px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.materialinfo { display: flex; justify-content: space-between; align-items: center; font-size: 11px; }
.materialprice { color: #e53e3e; font-size: 14px; font-weight: bold; }
.materialstock { color: #a0aec0; }
.materialsec3col { display: grid; grid-template-columns: 200px 1fr 280px; gap: 15px; margin-bottom: 25px; }
@media (max-width: 992px) { .materialsec3col { grid-template-columns: 1fr; } }
.materialcolbox { background: #ffffff; border-radius: 6px; border: 1px solid #e1e8ed; padding: 15px; }
.materialcolhead { font-size: 14px; font-weight: bold; color: #333; border-bottom: 2px solid #0277bd; padding-bottom: 8px; margin-bottom: 12px; }
.materialbadgecloud { display: flex; flex-wrap: wrap; gap: 8px; }
.materialminibadge { padding: 4px 10px; border-radius: 12px; background: #e1f5fe; color: #0277bd; font-size: 11px; font-weight: bold; }
.materialbulletlist { list-style: none; }
.materialbulletitem { font-size: 12px; color: #4a5568; padding: 6px 0; border-bottom: 1px dashed #f0f3f6; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.materialbulletitem a:hover { color: #0277bd; text-decoration: underline; }
.materialminigrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.materialminipic { border: 1px solid #f0f3f6; border-radius: 4px; padding: 4px; text-align: center; }
.materialminipic img { width: 100%; height: 75px; object-fit: cover; border-radius: 3px; }
.materialminititle { font-size: 11px; color: #555; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-top: 4px; }
.materialcardbox { background: #ffffff; border-radius: 6px; border: 1px solid #e1e8ed; padding: 30px; max-width: 650px; margin: 0 auto; }
.materialfooter { background: #ffffff; border-top: 1px solid #e1e8ed; padding: 25px 0; text-align: center; color: #7f8c8d; font-size: 13px; margin-top: 40px; }
.materialfooter a { color: #4a5568; margin-bottom: 6px; display: inline-block; }
.materialfooter p { color: #a0aec0; font-size: 12px; margin-top: 4px; }