/* ToolCMS V3.1.82 (c) ToolWorld https://www.toolworld.cn/ */
*{box-sizing:border-box;margin:0;padding:0}
body{margin:0;padding:0;font-family:inherit;background:transparent;color:var(--text-1,#333);font-size:14px;line-height:1.6}
.dur-container{max-width:100%;margin:0 auto;padding:16px}
.dur-card{background:var(--bg-card,#fff);border:1px solid var(--border,#e2e8f0);border-radius:var(--radius,16px);padding:24px;box-shadow:0 1px 3px rgba(0,0,0,.04)}
.dur-mode{display:inline-flex;background:var(--bg-soft,#f1f5f9);border-radius:var(--radius,10px);padding:4px;margin-bottom:18px}
.dur-mode-btn{border:0;background:transparent;padding:7px 18px;border-radius:var(--radius,8px);cursor:pointer;font-size:13px;color:var(--text-2,#64748b);transition:all .15s}
.dur-mode-active{background:var(--primary,var(--primary-hover));color:#fff;box-shadow:0 1px 3px rgba(37,99,235,.3)}
.dur-engine{display:flex;align-items:flex-end;gap:12px}
.dur-operand{flex:1}
.dur-label{display:block;font-weight:600;font-size:13px;color:var(--text-2,#555);margin-bottom:8px}
.dur-input{width:100%;padding:12px 14px;border:1px solid var(--border,#d1d5db);border-radius:var(--radius,10px);font-size:18px;font-weight:600;background:var(--bg-input,#fff);color:var(--text-1,#333);outline:none;transition:border-color .15s;text-align:center}
.dur-input:focus{border-color:var(--primary,var(--primary-hover));box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.dur-op{flex:0 0 auto;width:44px;height:44px;border-radius:50%;background:var(--primary,var(--primary-hover));color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;margin-bottom:6px}
.dur-hint{margin:12px 0 4px;font-size:12px;color:var(--text-3,#94a3b8);text-align:center}
.dur-toolbar{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.dur-btn{padding:9px 16px;border:1px solid var(--border,#d1d5db);border-radius:var(--radius-sm,8px);background:var(--bg-card,#fff);color:var(--text-1,#333);cursor:pointer;font-size:13px;transition:background .15s}
.dur-btn:hover{background:var(--primary-light)}

.dur-btn-primary{background:var(--primary,var(--primary-hover));color:#fff;border-color:var(--primary,var(--primary-hover))}
.dur-btn-primary:hover{background:var(--primary-light);color:var(--primary)}

.dur-result{margin-top:16px;display:none}
.dur-result.show{display:block}
.dur-result-main{background:linear-gradient(135deg,var(--primary,var(--primary-hover)),var(--primary-hover));border-radius:var(--radius,12px);padding:20px;text-align:center;color:#fff}
.dur-result-main-label{font-size:12px;opacity:.85;letter-spacing:1px}
.dur-result-main-value{font-size:30px;font-weight:800;margin-top:6px;word-break:break-all}
.dur-chips{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:10px}
.dur-chip{background:var(--bg-soft,#f8fafc);border:1px solid var(--border-light,#eef2f7);border-radius:var(--radius-sm,8px);padding:10px 6px;text-align:center}
.dur-chip-num{font-size:16px;font-weight:700;color:var(--primary,var(--primary-hover))}
.dur-chip-unit{font-size:11px;color:var(--text-3,#94a3b8);margin-top:2px}
.dur-message{margin-top:10px;padding:9px 13px;border-radius:var(--radius-sm,8px);font-size:13px;display:none}
.dur-message.show{display:block}
.dur-message.success{background:var(--primary-light);color:var(--primary,var(--primary-hover))}
.dur-message.error{background:var(--error-bg,#fee2e2);color:var(--error,#991b1b)}
.dur-footer{display:flex;justify-content:space-between;align-items:center;margin-top:18px;padding-top:12px;border-top:1px solid var(--border-light,#f1f5f9);font-size:12px;color:var(--text-3,#94a3b8)}
.dur-footer-right{margin-left:auto}
@media(max-width:640px){.dur-card{padding:16px}.dur-engine{flex-direction:column;align-items:stretch}.dur-op{margin:0 auto;transform:rotate(90deg);width:38px;height:38px}.dur-chips{grid-template-columns:repeat(2,1fr)}.dur-result-main-value{font-size:24px}.dur-footer{flex-direction:column;gap:4px;text-align:center}}