/* 智在必得 · 本地交互演示，无外部字体或网络资源 */
:root{--bg:#f3f6fb;--panel:#fff;--text:#203047;--muted:#66788f;--primary:#315fce;--primary-light:#edf2ff;--border:#e2e8f2;--green:#187057;--radius:18px;--shadow:0 7px 26px #203e7210}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:14px/1.7 "Microsoft YaHei","PingFang SC",system-ui,sans-serif}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.48}button,input,select{transition:border-color .15s,box-shadow .15s,background .15s}button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #8caaf7;outline-offset:3px}[hidden]{display:none!important}
.app-header{background:#fff;border-bottom:1px solid var(--border)}.header-inner{max-width:1680px;margin:auto;padding:28px 30px 25px;position:relative}.app-title{font-size:27px;letter-spacing:.6px;margin:0 0 5px;line-height:1.45}.app-title::before{content:"智";display:inline-grid;place-items:center;width:38px;height:38px;margin-right:12px;border-radius:12px;background:var(--primary);color:white;font-size:21px;vertical-align:3px}.app-subtitle{margin:0;color:var(--muted);font-size:14px}.demo-badge{display:inline-block;margin-top:14px;padding:4px 11px;background:#fff6e8;color:#926020;border-radius:8px;font-size:12px;border:1px solid #f0dfc0}
.layout{display:grid;grid-template-columns:minmax(285px,.92fr) minmax(360px,1.35fr) minmax(310px,1.05fr);align-items:start;gap:20px;max-width:1680px;margin:auto;padding:25px 30px}.column{min-width:0;display:grid;gap:18px}.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.panel-title{font-size:17px;line-height:1.5;margin:0 0 18px;font-weight:700}.form-group{margin-bottom:15px;min-width:0}.form-group label{display:block;margin-bottom:6px;font-size:13px;font-weight:600}.required{color:#bc4242}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}input,select{display:block;width:100%;min-width:0;min-height:42px;padding:9px 11px;border:1px solid #d7e0ee;border-radius:9px;background:#fcfdff;color:var(--text)}input::placeholder{color:#9ca9bc}.btn{border:1px solid transparent;border-radius:9px;min-height:38px;padding:8px 13px;font-size:13px;font-weight:600}.btn-primary{background:var(--primary);color:white}.btn-primary:hover:not(:disabled){background:#244caf}.btn-secondary{background:var(--primary-light);color:var(--primary);border-color:#dbe5ff}.btn-ghost{background:#fff;border-color:var(--border);color:var(--muted)}.btn-ghost:hover{background:#f4f6fb}.btn-block{display:block;width:100%}.form-hint{font-size:12px;color:var(--muted);margin:10px 0 0;overflow-wrap:anywhere}.form-hint:empty{display:none}.form-hint.error{color:#af3b31}.form-hint.success{color:var(--green)}.demo-note{border-radius:8px;background:#f5f7fc;padding:10px 12px;color:var(--muted);font-size:12px;margin-bottom:12px}.chat-box{display:flex;flex-direction:column;gap:11px;max-height:270px;overflow-y:auto;padding:2px 3px 12px;scroll-behavior:smooth}.chat-msg{padding:11px 13px;border-radius:12px;font-size:13px;max-width:96%;overflow-wrap:anywhere;white-space:pre-line}.chat-msg.bot{background:#f0f4ff;align-self:flex-start}.chat-msg.user{background:var(--primary);color:#fff;align-self:flex-end}.chat-input-row{display:flex;align-items:center;gap:8px}.chat-input-row input{flex:1;font-size:12px}.chat-input-row .btn{flex-shrink:0}
.topic-tag{color:var(--primary);background:var(--primary-light);border-radius:8px;font-size:12px;display:inline-block;padding:5px 10px;margin-bottom:17px}.course-list{display:grid;gap:14px}.empty-state{padding:27px 17px;border:1px dashed #cbd7eb;border-radius:12px;background:#fafcff;color:var(--muted);font-size:13px;text-align:center}.empty-state strong{color:var(--text);display:block;margin-bottom:6px}.stage-heading{font-size:13px;font-weight:700;color:var(--muted);border-top:1px solid var(--border);padding-top:12px;margin:6px 0 0}.course-card{border:1px solid var(--border);border-radius:13px;padding:16px;background:white}.course-card.recommended{border-color:#b9caf3;background:#fcfdff}.course-card.selected{box-shadow:0 0 0 2px #315fce30;border-color:var(--primary)}.course-top{display:flex;gap:9px;align-items:flex-start;justify-content:space-between}.course-top h3{font-size:15px;line-height:1.6;margin:0}.badge{font-size:10px;white-space:nowrap;padding:2px 7px;border-radius:5px;font-weight:500}.badge.demo{color:#88602b;background:#fff4df}.badge.pick{color:var(--primary);background:var(--primary-light);margin-right:5px}.course-meta{display:flex;flex-wrap:wrap;gap:5px 12px;color:var(--muted);font-size:12px;margin:9px 0}.course-section{font-size:12px;color:var(--muted);margin:8px 0}.course-section strong{color:var(--text)}.course-reason{padding:9px 10px;background:#eef5f1;color:#386455;border-radius:7px;font-size:12px;margin-top:10px}.course-card .btn{margin-top:12px;width:100%;font-size:12px}.compare-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:18px;padding-top:15px;border-top:1px solid var(--border)}.compare-status{font-size:12px;color:var(--muted);width:100%}.compare-result{font-size:12px;margin-top:10px;color:var(--muted)}.review-empty{padding:18px;text-align:center;border:1px dashed var(--border);border-radius:10px;color:var(--muted)}.review-note,.save-note,.feedback-desc{font-size:12px;color:var(--muted);margin:10px 0 14px}.review-note{margin-bottom:0}
.path-summary{padding:15px;background:#edf3ff;border-radius:11px;margin-top:16px;font-size:12px;color:#3c547c}.summary-number{font-size:23px;font-weight:750;color:var(--primary);line-height:1.4}.summary-grid{display:flex;gap:24px;flex-wrap:wrap;margin-bottom:10px}.summary-caption{font-size:11px;color:var(--muted)}.schedule-warning{background:#fff6e8;border-left:3px solid #d3953d;border-radius:4px;padding:9px 11px;margin-top:10px;font-size:12px;color:#865b25}.path-stages{margin-top:17px}.stage-overview{border:1px solid var(--border);border-radius:10px;padding:12px;margin-bottom:10px;font-size:12px;color:var(--muted)}.stage-overview strong{color:var(--text);display:block;margin-bottom:3px}.weeks-title{font-size:14px;margin:20px 0 12px}.week-card{position:relative;margin:0 0 12px 6px;border-left:2px solid #c9d6f4;padding:0 0 7px 17px}.week-card::before{content:"";position:absolute;left:-5px;top:7px;background:var(--primary);width:8px;height:8px;border-radius:50%}.week-card h4{display:flex;justify-content:space-between;gap:10px;font-size:13px;margin:0 0 7px}.week-card h4 span{font-size:11px;font-weight:500;color:var(--muted)}.week-card ul{padding:0;margin:0;list-style:none;font-size:12px;color:var(--muted)}.week-card li{margin-bottom:6px;display:flex;justify-content:space-between;gap:10px}.task-time{white-space:nowrap;color:#6e80a0;font-size:11px}.feedback-buttons{display:flex;flex-wrap:wrap;gap:8px}.btn-feedback{background:#f1f5fd;color:#36578d;border-color:#dce5f4;font-size:12px}.btn-feedback:hover:not(:disabled){background:#e5edfc}.adjust-reason{padding:12px;background:#eef7f2;border-radius:9px;color:#35624f;font-size:12px;margin-top:14px;white-space:pre-line}.app-footer{padding:8px 24px 25px;text-align:center;color:#8190a6;font-size:11px}
.modal-overlay{position:fixed;inset:0;z-index:100;background:#15243880;display:flex;align-items:center;justify-content:center;padding:20px}.modal-content{max-width:760px;width:100%;max-height:85vh;background:#fff;border-radius:18px;box-shadow:0 30px 90px #07173455;overflow:auto}.modal-header{position:sticky;top:0;background:white;display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--border);z-index:1}.modal-header h3{margin:0;font-size:17px}.modal-close{border:0;border-radius:8px;background:#f0f3f9;color:var(--muted);width:34px;height:34px;font-size:24px;line-height:1}.modal-body{padding:20px;overflow-x:auto}.compare-table{border-collapse:collapse;width:100%;min-width:450px;font-size:13px;table-layout:fixed}.compare-table td,.compare-table th{padding:12px;text-align:left;vertical-align:top;border:1px solid var(--border);overflow-wrap:anywhere}.compare-table th{background:#f5f7fc}.compare-table th:first-child{width:95px}.modal-note{color:var(--muted);font-size:12px;margin-top:14px}.storage-warning{color:#ad6230!important}
@media(min-width:1500px){.header-inner .demo-badge{position:absolute;right:30px;top:28px}.app-header .header-inner{padding-top:31px;padding-bottom:28px}}
@media(max-width:1120px){.layout{grid-template-columns:minmax(270px,.9fr) minmax(350px,1.2fr);padding:20px;gap:16px}.column-right{grid-column:1/-1;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);align-items:start}.column-right>.panel:first-child{grid-row:span 2}.header-inner{padding:24px 20px}.panel{padding:19px}}
@media(max-width:700px){.layout{display:flex;flex-direction:column;padding:15px 12px}.column{width:100%;display:grid;grid-template-columns:1fr;gap:15px}.column-right>.panel:first-child{grid-row:auto}.header-inner{padding:22px 16px}.app-title{font-size:21px}.app-title::before{width:32px;height:32px;font-size:18px;margin-right:8px;vertical-align:1px}.app-subtitle{font-size:12px}.panel{padding:18px;border-radius:14px}.course-top h3{font-size:14px}.modal-overlay{padding:12px}.form-row{gap:10px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
textarea{font:inherit;display:block;width:100%;resize:vertical;min-height:100px;padding:11px 12px;border:1px solid #d7e0ee;border-radius:9px;color:var(--text);background:#fcfdff;line-height:1.7}textarea:focus-visible{outline:3px solid #8caaf7;outline-offset:3px}.small-note{font-size:12px;color:var(--muted);margin:8px 0 13px;overflow-wrap:anywhere}.example-chips{display:flex;flex-wrap:wrap;gap:7px}.example-chips button{border:1px solid #dce5f7;background:#f1f5fe;color:#4768a4;border-radius:16px;padding:4px 10px;font-size:11px}.course-actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:12px}.course-actions .btn{width:auto;margin:0;font-size:11px;flex:1}.course-link{display:block;color:var(--primary);font-size:12px;text-decoration:none;margin-top:11px}.course-link:hover{text-decoration:underline}.course-tag{color:#72839e;font-size:11px;margin-bottom:7px}.course-card.in-path{border-left:3px solid var(--primary)}.trace-box{font-size:12px;color:var(--muted);margin-top:14px;background:#f5f8fd;padding:10px;border-radius:8px}.trace-box summary{cursor:pointer;color:#315fce}.trace-box p{margin:8px 0}.course-warning{font-size:11px;background:#fff6e8;color:#96652b;padding:8px;border-radius:6px;margin-top:8px}.week-card li>span:first-child{min-width:0;overflow-wrap:anywhere}.summary-number small{font-size:12px}.omitted-list{font-size:12px;color:#876033;background:#fff8ef;border-radius:9px;padding:12px;margin-top:14px}.source-facts{font-size:11px;color:#8996a9;margin:9px 0 0}.model-connected{background:#eaf6ef;color:#267056;border-color:#d0e9da}.busy-note{color:#315fce}.compare-table a{color:var(--primary)}

.progress-task{display:flex;align-items:flex-start;gap:9px;margin:12px 0;font-size:13px;line-height:1.6}.progress-task input{width:auto;margin-top:5px}.progress-task small{display:block;color:#66758b;font-size:11px}#learningNotes{width:100%;box-sizing:border-box;margin-top:8px}


.progress-task{display:block}.progress-task>label{display:flex;gap:8px}.progress-fields{display:flex;gap:12px;margin:8px 0}.progress-fields label{flex:1}.progress-fields input{width:100%;box-sizing:border-box}.pin-note{display:block;margin-top:6px;border:0;background:transparent;color:#345acb;cursor:pointer;font-size:11px}
.web-search-option{display:flex;align-items:flex-start;gap:7px;font-size:12px;margin:12px 0;color:var(--muted)}.web-search-option input{width:auto;margin-top:4px;flex:none}.discovery-card{overflow-wrap:anywhere;margin-bottom:12px;font-size:12px}.discovery-card h3{font-size:15px}.discovery-heading{font-size:14px;margin:18px 0 10px}
.account-buttons{display:flex;gap:7px;flex-wrap:wrap;margin-top:10px}.account-buttons .btn{font-size:11px;padding:7px 9px}.saved-plan{padding:12px 0;border-bottom:1px solid var(--border);overflow-wrap:anywhere}.saved-plan strong,.saved-plan small{display:block}.saved-plan small{color:var(--muted);margin:4px 0}.saved-plan button{margin-right:6px}.sync-error{color:#a33131}#authForm>label{display:block;font-size:12px;margin:10px 0 5px}