/* ===================== 材料重量计算专用样式 ===================== */

/* 通用样式（与 zlljs 一致） */
*{box-sizing:border-box;margin:0;padding:0}
.wrap{max-width:1600px;margin:0 auto;padding:16px}
.card{background:#fff;border-radius:10px;box-shadow:0 2px 12px rgba(21,101,192,.1);margin-bottom:16px;overflow:hidden}
.card-title{background:linear-gradient(135deg,#1565c0,#0d47a1);color:#fff;padding:10px 16px;font-size:15px;font-weight:bold;display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.card-body{padding:16px}
.row{display:flex;gap:12px;flex-wrap:wrap}
.col{flex:1;min-width:180px}
.lbl{font-size:12px;color:#555;margin-bottom:4px}
.lbl span{color:#c62828}
input,select{width:100%;padding:8px 10px;border:1.5px solid #ccc;border-radius:6px;font-size:14px;transition:border .2s,box-shadow .2s}
input:focus,select:focus{outline:none;border-color:#1565c0;box-shadow:0 0 0 3px rgba(21,101,192,.12)}
.result-box{background:#f8f9fa;border:2px solid #1565c0;border-radius:8px;padding:14px 16px;margin-top:12px}
.result-main{font-size:36px;color:#c62828;font-weight:bold;line-height:1.2}
.result-main span{font-size:16px;color:#555;margin-left:8px}
.result-detail{display:grid;grid-template-columns:1fr 1fr;gap:8px 24px;margin-top:12px}
.result-item{display:flex;justify-content:space-between;font-size:13px;padding:4px 0;border-bottom:1px solid #eee}
.result-item .k{color:#888}
.result-item .v{font-weight:bold;color:#333}
.result-item .v.highlight{color:#c62828;font-size:15px}
.btn-row{display:flex;gap:12px;margin-top:14px;flex-wrap:wrap}
.btn{padding:10px 20px;border:none;border-radius:6px;font-size:14px;cursor:pointer;font-weight:bold;transition:all .2s}
.btn-primary{background:#1565c0;color:#fff}
.btn-primary:hover{background:#0d47a1}
.btn-outline{background:#fff;color:#1565c0;border:2px solid #1565c0}
.btn-outline:hover{background:#e3f2fd}
.btn svg{width:16px;height:16px;vertical-align:middle;margin-right:6px}
.ref-info{font-size:12px;color:#555;background:#fff8e1;padding:8px 12px;border-radius:6px;margin-top:10px;border-left:3px solid #f57c00;line-height:1.8}
.ref-info code{font-size:11px;font-family:Consolas,monospace}
input[type=number]::-webkit-inner-spin-button,input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none}
svg.icon{display:inline-block;width:1em;height:1em;vertical-align:-0.125em}

/* 材料单选组 */
.material-radio-group{display:flex;flex-wrap:wrap;gap:8px;padding:8px 0}
.material-radio-group label{display:flex;align-items:center;gap:6px;padding:8px 16px;border:2px solid #e0e0e0;border-radius:8px;cursor:pointer;font-size:14px;font-weight:500;transition:all .2s;background:#fff;user-select:none}
.material-radio-group label:hover{border-color:#1565c0;background:#e3f2fd}
.material-radio-group input[type="radio"]{width:auto;accent-color:#1565c0}
.material-radio-group label.active{border-color:#1565c0;background:#e3f2fd;color:#0d47a1;box-shadow:0 2px 6px rgba(21,101,192,.2)}

/* 密度标签 */
.density-display{display:inline-block;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;padding:2px 10px;border-radius:12px;font-size:13px;margin-left:8px;font-weight:500}

/* 截面形状选项卡 */
.shape-tabs{display:flex;flex-wrap:wrap;gap:6px;padding:8px 0;border-bottom:2px solid #e0e0e0;margin-bottom:16px}
.shape-tab{padding:8px 18px;border:none;background:none;cursor:pointer;font-size:14px;color:#666;border-bottom:3px solid transparent;transition:all .2s;font-weight:500;border-radius:6px 6px 0 0}
.shape-tab:hover{color:#1565c0;background:#e3f2fd}
.shape-tab.active{color:#1565c0;border-bottom-color:#1565c0;font-weight:600;background:#e3f2fd}

/* 截面参数面板 */
.shape-params{display:none;animation:fadeIn .3s ease}
.shape-params.active{display:block}
@keyframes fadeIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}

/* 响应式 */
@media(max-width:768px){
  .col{min-width:140px}
  .result-main{font-size:28px}
  .material-radio-group label{padding:6px 10px;font-size:13px}
  .shape-tab{padding:6px 12px;font-size:13px}
}