/* 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}
.study-wordbook-container{max-width:100%;margin:0 auto;padding:16px}
.study-wordbook-stats{display:flex;gap:10px;margin-bottom:14px}
.study-wordbook-statbox{flex:1;background:var(--bg-card,#fff);border:1px solid var(--border,#e2e8f0);border-radius:var(--radius,12px);padding:12px;text-align:center}
.study-wordbook-statnum{display:block;font-size:22px;font-weight:800;color:var(--primary,var(--primary-hover))}
.study-wordbook-statlabel{font-size:12px;color:var(--text-3,#94a3b8)}
.study-wordbook-addcard{background:var(--bg-card,#fff);border:1px dashed var(--border,#cbd5e1);border-radius:var(--radius,14px);padding:14px;margin-bottom:14px}
.study-wordbook-addtitle{font-weight:600;font-size:13px;color:var(--text-2,#555);margin-bottom:10px}
.study-wordbook-addgrid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.study-wordbook-addgrid .study-wordbook-input:nth-child(3){grid-column:1/-1}
.study-wordbook-input{padding:9px 12px;border:1px solid var(--border,#d1d5db);border-radius:var(--radius-sm,8px);font-size:14px;background:var(--bg-card,#fff);color:var(--text-1,#333);outline:none}
.study-wordbook-input:focus{border-color:var(--primary,var(--primary-hover))}
.study-wordbook-quizbox{background:linear-gradient(135deg,var(--primary,var(--primary-hover)),var(--primary-hover));color:#fff;border-radius:var(--radius,16px);padding:22px;margin-bottom:14px;text-align:center}
.study-wordbook-quizword{font-size:26px;font-weight:800;margin-bottom:14px;letter-spacing:1px}
.study-wordbook-quizopts{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.study-wordbook-quizopt{padding:10px;border-radius:var(--radius-sm,8px);border:1px solid rgba(255,255,255,.4);background:rgba(255,255,255,.12);color:#fff;font-size:13px;cursor:pointer;transition:background .15s}
.study-wordbook-quizopt:hover:not(:disabled){background:rgba(255,255,255,.25)}
.study-wordbook-quizopt:disabled{cursor:default}
.study-wordbook-quizopt.right{background:#16a34a;border-color:#16a34a}
.study-wordbook-quizopt.wrong{background:#dc2626;border-color:#dc2626}
.study-wordbook-quizmsg{margin-top:12px;font-size:13px;min-height:18px}
.study-wordbook-toolbar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:4px}
.study-wordbook-btn{padding:9px 14px;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}
.study-wordbook-btn:hover{background:var(--primary-light)}

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

.study-wordbook-message{margin-top:8px;padding:8px 12px;border-radius:var(--radius-sm,8px);font-size:13px;display:none}
.study-wordbook-message.show{display:block}
.study-wordbook-message.success{background:var(--primary-light);color:var(--primary,var(--primary-hover))}
.study-wordbook-message.error{background:var(--error-bg,#fee2e2);color:var(--error,#991b1b)}
.study-wordbook-list{display:flex;flex-direction:column;gap:10px;margin-top:16px}
.study-wordbook-card{background:var(--bg-card,#fff);border:1px solid var(--border-light,#eef2f7);border-left:4px solid var(--primary,var(--primary-hover));border-radius:var(--radius-sm,10px);padding:12px 14px;display:flex;justify-content:space-between;gap:10px;align-items:flex-start}
.study-wordbook-card-mastered{border-left-color:var(--success,#16a34a)}
.study-wordbook-cardmain{min-width:0}
.study-wordbook-word{font-size:16px;font-weight:700;color:var(--text-1,#111827)}
.study-wordbook-meaning{font-size:13px;color:var(--text-2,#555);margin-top:2px}
.study-wordbook-example{font-size:12px;color:var(--text-3,#94a3b8);margin-top:4px;font-style:italic}
.study-wordbook-cardops{display:flex;flex-direction:column;gap:4px;flex-shrink:0}
.study-wordbook-mini{border:1px solid var(--border,#e2e8f0);background:var(--bg-card,#fff);border-radius:6px;font-size:11px;padding:3px 8px;cursor:pointer;color:var(--text-2,#555)}
.study-wordbook-mini:hover{background:var(--primary-light)}
.study-wordbook-footer{display:flex;justify-content:space-between;align-items:center;margin-top:20px;padding-top:12px;border-top:1px solid var(--border-light,#f1f5f9);font-size:12px;color:var(--text-3,#94a3b8)}
.study-wordbook-footer-right{margin-left:auto}
@media(max-width:640px){.study-wordbook-container{padding:12px}.study-wordbook-addgrid{grid-template-columns:1fr}.study-wordbook-quizopts{grid-template-columns:1fr}.study-wordbook-btn{flex:1 1 auto}.study-wordbook-footer{flex-direction:column;gap:4px;text-align:center}}