:root{--mi-orange:#ff6700;--mi-orange-dark:#e55d00;--mi-orange-light:#ff8533;--mi-bg:#f5f5f5;--mi-white:#fff;--mi-gray:#666;--mi-gray-light:#999;--mi-gray-dark:#333;--mi-border:#e0e0e0}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{background:var(--mi-bg);height:100vh;color:var(--mi-gray-dark);font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,Hiragino Sans GB,sans-serif;line-height:1.6;overflow:hidden}#app{flex-direction:column;height:100vh;display:flex}.header{-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--mi-border);z-index:100;background:#ffffffeb;flex-shrink:0;justify-content:space-between;align-items:center;height:64px;padding:0 2.5rem;display:flex}.header h1{color:var(--mi-gray-dark);font-size:1.125rem;font-weight:700}.header .tabs{background:var(--mi-bg);border-radius:8px;gap:4px;padding:3px;display:flex}.header .tabs button{color:var(--mi-gray);cursor:pointer;background:0 0;border:none;border-radius:6px;padding:6px 20px;font-size:.875rem;font-weight:400;transition:all .2s}.header .tabs button.active{background:var(--mi-white);color:var(--mi-orange);font-weight:600;box-shadow:0 1px 3px #00000014}.header .help-btn{background:var(--mi-bg);width:32px;height:32px;color:var(--mi-gray-light);cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;font-size:16px;font-weight:700;transition:all .25s;display:flex}.header .help-btn:hover{background:var(--mi-orange);color:#fff}.main-area{background:var(--mi-bg);flex:1;display:flex;overflow:hidden}.left-panel{border-right:1px solid var(--mi-border);background:var(--mi-white);flex:0 0 380px;padding:2rem;overflow-y:auto}.left-panel h3{color:var(--mi-gray-dark);margin-bottom:1.25rem;font-size:1.125rem;font-weight:700}.form-group{margin-bottom:1rem}.form-group label{color:var(--mi-gray);margin-bottom:.25rem;font-size:.8125rem;display:block}.form-group input,.form-group select{border:1px solid var(--mi-border);background:var(--mi-white);width:100%;color:var(--mi-gray-dark);border-radius:8px;outline:none;padding:8px 12px;font-family:inherit;font-size:.875rem;transition:border-color .2s}.form-group input:focus,.form-group select:focus{border-color:var(--mi-orange)}.form-group .hint{color:var(--mi-gray-light);margin-top:.25rem;font-size:.75rem}.recommend-btn{background:var(--mi-orange);color:#fff;cursor:pointer;border:none;border-radius:8px;width:100%;margin-top:.5rem;padding:10px;font-family:inherit;font-size:.9375rem;font-weight:600;transition:all .2s}.recommend-btn:hover{background:var(--mi-orange-dark);transform:translateY(-1px);box-shadow:0 4px 12px #ff67004d}.right-panel{flex-direction:column;flex:1;padding:2rem 2.5rem;display:flex;overflow-y:auto}.right-panel .toolbar{flex-wrap:wrap;gap:.75rem;margin-bottom:1.5rem;display:flex}.right-panel .toolbar input,.right-panel .toolbar select{border:1px solid var(--mi-border);background:var(--mi-white);color:var(--mi-gray-dark);border-radius:8px;outline:none;padding:8px 12px;font-family:inherit;font-size:.875rem;transition:border-color .2s}.right-panel .toolbar input{flex:1;min-width:180px}.right-panel .toolbar input:focus,.right-panel .toolbar select:focus{border-color:var(--mi-orange)}.result-count{color:var(--mi-gray-light);margin-bottom:1rem;font-size:.8125rem}.book-grid{flex:1;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));align-content:start;gap:1rem;display:grid}.book-card{background:var(--mi-white);border:1px solid var(--mi-border);cursor:pointer;border-radius:16px;padding:1.5rem;transition:all .25s;position:relative;overflow:hidden;box-shadow:0 1px 4px #0000000a}.book-card:hover{border-color:var(--mi-orange);transform:translateY(-4px);box-shadow:0 8px 24px #00000014}.book-card .book-title{color:var(--mi-gray-dark);margin-bottom:.5rem;font-size:1rem;font-weight:700;line-height:1.4}.book-card .book-meta{flex-wrap:wrap;gap:.375rem;margin-bottom:.5rem;display:flex}.book-card .tag{background:var(--mi-bg);border:1px solid var(--mi-border);color:var(--mi-gray);border-radius:4px;padding:.15rem .5rem;font-size:.75rem}.book-card .tag.grade{background:var(--mi-bg);color:var(--mi-orange);border-color:#ff670033}.book-card .book-author{color:var(--mi-gray-light);white-space:nowrap;text-overflow:ellipsis;font-size:.8125rem;overflow:hidden}.modal-overlay{z-index:200;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0000004d;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal-content{background:var(--mi-white);border-radius:16px;width:90%;max-width:480px;max-height:80vh;padding:2rem 2rem 1.5rem;overflow-y:auto;box-shadow:0 20px 60px #00000026}.modal-content h2{color:var(--mi-gray-dark);margin-bottom:1rem;font-size:1.125rem;font-weight:700}.modal-content .detail-row{border-bottom:1px solid var(--mi-bg);padding:.5rem 0;font-size:.875rem;display:flex}.modal-content .detail-row .label{color:var(--mi-gray-light);flex:0 0 64px}.modal-content .detail-row .value{color:var(--mi-gray-dark)}.modal-close{float:right;border:1px solid var(--mi-border);background:var(--mi-white);color:var(--mi-gray);cursor:pointer;border-radius:8px;margin-top:1rem;padding:6px 20px;font-family:inherit;font-size:.875rem;transition:all .2s}.modal-close:hover{color:var(--mi-orange);border-color:var(--mi-orange)}.pagination{justify-content:center;align-items:center;gap:.75rem;margin-top:1.5rem;padding-bottom:.5rem;display:flex}.pagination button{border:1px solid var(--mi-border);background:var(--mi-white);color:var(--mi-gray);cursor:pointer;border-radius:8px;padding:6px 16px;font-family:inherit;font-size:.8125rem;transition:all .2s}.pagination button:hover:not(:disabled){background:var(--mi-orange);color:#fff;border-color:var(--mi-orange)}.pagination button:disabled{opacity:.35;cursor:default}.pagination span{color:var(--mi-gray);font-size:.8125rem}.help-content{color:var(--mi-gray-dark);line-height:1.8}.help-content p{margin-bottom:.5rem;font-size:.875rem}.help-content strong{color:var(--mi-gray-dark)}.empty-state{color:var(--mi-gray-light);flex-direction:column;justify-content:center;align-items:center;padding:80px 0;display:flex}.empty-state .icon{opacity:.3;margin-bottom:1rem;font-size:3rem}.empty-state p{font-size:.875rem}@media (width<=768px){.main-area{flex-direction:column}.left-panel{border-right:none;border-bottom:1px solid var(--mi-border);flex:none;padding:1.5rem}.header{padding:0 1rem}.right-panel{padding:1.5rem 1rem}.book-grid{grid-template-columns:1fr}}.desc-block[data-v-569d7d5b]{background:#f9f8f6;border-radius:8px;margin-bottom:12px;padding:14px 16px}.desc-text[data-v-569d7d5b]{color:#444;font-size:.875rem;line-height:1.8}.main-area[data-v-2c86a240]{background:#f5f5f5;flex:1;display:flex;overflow:hidden}.left-panel[data-v-2c86a240]{background:#fff;border-right:1px 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32px;overflow-y:auto}.result-count[data-v-2c86a240]{color:#999;margin-bottom:12px;font-size:.8125rem}.book-grid[data-v-2c86a240]{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:10px;display:grid}.empty-state[data-v-2c86a240]{color:#ccc;flex-direction:column;justify-content:center;align-items:center;padding:80px 0;display:flex}.empty-state .icon[data-v-2c86a240]{opacity:.3;margin-bottom:8px;font-size:3rem}.empty-state p[data-v-2c86a240]{font-size:.875rem}@media (width<=768px){.main-area[data-v-2c86a240]{flex-direction:column}.left-panel[data-v-2c86a240]{border-bottom:1px solid #e8e8e8;border-right:none;flex:none;padding:16px}.right-panel[data-v-2c86a240]{padding:16px}.book-grid[data-v-2c86a240]{grid-template-columns:1fr}}.header-right[data-v-8e4b2921]{align-items:center;gap:12px;display:flex}.user-phone[data-v-8e4b2921]{color:var(--mi-orange,#ff6700);font-size:.8125rem;font-weight:600}.logout-btn[data-v-8e4b2921]{color:#999;cursor:pointer;background:#fff;border:1px solid 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solid #ff6700;border-radius:10px;padding:.625rem 2rem;font-size:.9375rem;font-weight:500;text-decoration:none;display:inline-block}.btn-outline[data-v-8e4b2921]:hover{background:#fff7f0}