:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f6f8f7;--panel:#fff;--line:#dfe7e3;--text:#1e2a27;--muted:#66736f;--soft:#eef4f1;--accent:#0f8f75;--accent-dark:#0b6f5b;--amber:#b87912;--danger:#c24135;--shadow:0 16px 40px #1f352f14;font-family:Inter,PingFang SC,Microsoft YaHei,Arial,sans-serif}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0}button,input,textarea,select{font:inherit}button{cursor:pointer}input,textarea,select{border:1px solid var(--line);width:100%;color:var(--text);background:#fff;border-radius:8px;outline:none;padding:10px 11px}textarea{resize:vertical;line-height:1.6}input:focus,textarea:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px #0f8f751f}label{color:var(--muted);gap:7px;font-size:13px;font-weight:650;display:grid}.boot-screen,.public-error{min-height:100vh;color:var(--muted);place-items:center;display:grid}.login-page,.student-page{place-items:center;min-height:100vh;padding:32px 16px;display:grid}.login-card,.success-card{background:var(--panel);border:1px solid var(--line);width:min(440px,100%);box-shadow:var(--shadow);border-radius:8px;padding:34px}.login-card h1,.success-card h1{letter-spacing:0;margin:16px 0 8px;font-size:28px}.login-card p,.success-card p{color:var(--muted);margin:0 0 24px;line-height:1.7}.mark,.success-mark{background:var(--soft);width:48px;height:48px;color:var(--accent);border-radius:8px;place-items:center;display:grid}.success-card{text-align:center}.success-mark{margin:0 auto}.primary-button,.ghost-button,.download-button{border:1px solid #0000;border-radius:8px;justify-content:center;align-items:center;gap:8px;min-height:40px;padding:0 14px;font-size:14px;font-weight:750;text-decoration:none;display:inline-flex}.primary-button{background:var(--accent);color:#fff}.primary-button:hover{background:var(--accent-dark)}.primary-button:disabled{opacity:.55;cursor:not-allowed}.ghost-button,.download-button{color:var(--text);border-color:var(--line);background:#fff}.ghost-button:hover,.download-button:hover{background:#f9fbfa;border-color:#b8c7c2}.error-box{color:var(--danger);background:#fff5f3;border:1px solid #c2413538;border-radius:8px;padding:10px 12px;font-size:13px}.admin-shell{grid-template-columns:248px 1fr;min-height:100vh;display:grid}.side-rail{border-right:1px solid var(--line);background:#fff;flex-direction:column;gap:10px;height:100vh;padding:18px;display:flex;position:sticky;top:0}.brand{border-bottom:1px solid var(--line);align-items:center;gap:10px;margin-bottom:6px;padding:7px 4px 18px;display:flex}.brand strong{font-size:15px;display:block}.brand span{color:var(--muted);font-size:12px}.rail-button{color:var(--muted);background:0 0;border:0;border-radius:8px;align-items:center;gap:10px;min-height:42px;padding:0 10px;font-weight:700;display:flex}.rail-button.active,.rail-button:hover{background:var(--soft);color:var(--text)}.rail-button.bottom{margin-top:auto}.workspace{min-width:0;padding:22px}.top-bar{justify-content:space-between;align-items:center;gap:20px;margin-bottom:18px;display:flex}.top-bar h1{letter-spacing:0;margin:0;font-size:26px}.top-bar p{color:var(--muted);margin:6px 0 0}.top-actions{flex-wrap:wrap;gap:10px;display:flex}.admin-grid{grid-template-columns:minmax(190px,240px) minmax(420px,1fr) minmax(300px,390px);align-items:start;gap:16px;display:grid}.panel{background:var(--panel);border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 22px #1f352f0a}.panel-title{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:12px;padding:15px 16px;display:flex}.panel-title h2{margin:0;font-size:16px}.panel-title span{color:var(--muted);font-size:13px}.survey-list{padding-bottom:8px}.survey-item,.submission-row{text-align:left;background:0 0;border:1px solid #0000;border-radius:8px;gap:5px;width:calc(100% - 16px);margin:8px;padding:11px;display:grid}.survey-item:hover,.survey-item.selected,.submission-row:hover,.submission-row.selected{background:var(--soft);border-color:#d5e3de}.survey-item strong,.submission-row strong{font-size:14px}.survey-item span,.submission-row span,.submission-row em{color:var(--muted);font-size:12px;font-style:normal}.status{color:var(--amber);font-size:12px;font-style:normal}.status.active{color:var(--accent)}.builder-column,.records-column{gap:16px;display:grid}.survey-settings,.import-panel,.question-panel{padding:16px}.survey-settings .panel-title,.import-panel .panel-title,.question-panel .panel-title{margin:-16px -16px 14px}.field-row{grid-template-columns:1fr 150px;gap:12px;margin-bottom:12px;display:grid}.publish-row{border-top:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:10px;margin-top:12px;padding-top:12px;display:flex}.publish-row div{flex:240px;gap:4px;min-width:0;display:grid}.publish-row span{color:var(--muted);font-size:12px;font-weight:750}.publish-row code{text-overflow:ellipsis;white-space:nowrap;border:1px solid var(--line);background:#f8faf9;border-radius:8px;padding:9px;overflow:hidden}.import-panel textarea{margin-bottom:10px}.question-list{gap:10px;display:grid}.question-editor{border:1px solid var(--line);border-radius:8px;grid-template-columns:34px 1fr;gap:10px;padding:10px;display:grid}.question-number{background:var(--soft);width:28px;height:28px;color:var(--accent);border-radius:8px;place-items:center;font-weight:800;display:grid}.question-body{gap:8px;min-width:0;display:grid}.question-controls{grid-template-columns:150px 78px 36px 36px;align-items:center;gap:8px;display:grid}.check-line{color:var(--text);align-items:center;gap:6px;font-size:13px;display:flex}.check-line input{width:auto}.icon-button{border:1px solid var(--line);width:36px;height:36px;color:var(--text);background:#fff;border-radius:8px}.icon-button.danger{color:var(--danger)}.options-box{background:#fbfcfc}.records-panel{overflow:hidden}.submission-list{max-height:270px;padding-bottom:8px;overflow:auto}.muted-line,.empty-state{color:var(--muted);padding:18px}.detail-panel{padding-bottom:12px}.detail-meta{color:var(--muted);padding:0 16px 12px;font-size:13px}.answer-stack{gap:8px;max-height:390px;padding:0 16px;display:grid;overflow:auto}.answer-item{border:1px solid var(--line);border-radius:8px;gap:7px;padding:10px;display:grid}.answer-item strong{font-size:13px;line-height:1.5}.answer-item p{color:var(--muted);white-space:pre-wrap;margin:0;font-size:13px;line-height:1.6}.answer-item a{color:var(--accent);align-items:center;gap:5px;font-size:13px;text-decoration:none;display:inline-flex}.phone-preview{box-shadow:var(--shadow);background:#fff;border:1px solid #cedbd6;border-radius:24px;padding:16px}.phone-top{background:#ccd8d4;border-radius:99px;width:54px;height:5px;margin:0 auto 14px}.phone-preview h3{margin:0 0 10px;font-size:15px}.phone-preview strong{margin-bottom:12px;display:block}.phone-preview label{margin-bottom:10px}.preview-question{border-top:1px solid var(--line);gap:7px;padding:10px 0;display:grid}.preview-question span{font-size:12px;line-height:1.5}.preview-input{background:var(--soft);color:var(--muted);border-radius:8px;padding:9px;font-size:12px}.phone-preview button{background:var(--accent);color:#fff;border:0;border-radius:8px;width:100%;min-height:38px;font-weight:800}.toast{z-index:10;color:#fff;box-shadow:var(--shadow);background:#123c33;border-radius:8px;padding:11px 14px;animation:3.2s forwards fadeout;position:fixed;top:18px;right:18px}@keyframes fadeout{0%,70%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-8px)}}.student-form{gap:14px;width:min(840px,100%);display:grid}.student-form header{background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:8px;padding:24px}.student-form h1{letter-spacing:0;margin:0 0 8px;font-size:28px}.student-form p{color:var(--muted);margin:0;line-height:1.7}.student-section{background:var(--panel);border:1px solid var(--line);border-radius:8px;gap:14px;padding:18px;display:grid}.question-flow{gap:12px}.student-question{border:1px solid var(--line);border-radius:8px;gap:10px;padding:14px;display:grid}.question-label{color:var(--text);justify-content:space-between;align-items:flex-start;gap:12px;font-size:15px;line-height:1.6;display:flex}.question-label em{color:var(--accent);flex:none;font-size:12px;font-style:normal}.composer-input,.supplement-input{background:#fbfdfc}.supplement-input{min-height:82px}.choice-list{gap:8px;display:grid}.choice-list label{color:var(--text);align-items:center;gap:8px;font-weight:500;display:flex}.choice-list input{width:auto}.attachment-composer{border:1px solid var(--line);background:#f8fbfa;border-radius:8px;justify-content:space-between;align-items:center;gap:10px;padding:8px;display:flex}.attach-button{min-height:36px;color:var(--accent);background:#fff;border:1px solid #bdd4cc;border-radius:8px;flex:none;justify-content:center;align-items:center;gap:8px;padding:0 12px;font-size:13px;font-weight:800;display:flex;position:relative;overflow:hidden}.attach-button input{opacity:0;cursor:pointer;position:absolute;inset:0}.attach-hint{min-width:0;color:var(--muted);font-size:12px;line-height:1.5}.file-list{flex-wrap:wrap;gap:8px;display:flex}.file-chip{background:var(--soft);max-width:100%;color:var(--text);border:1px solid #cfe0da;border-radius:8px;align-items:center;gap:6px;padding:6px 8px;font-size:12px;line-height:1.3;display:inline-flex}.file-chip button{width:20px;height:20px;color:var(--muted);background:#fff;border:0;border-radius:6px;flex:none;place-items:center;padding:0;display:grid}.file-chip button:hover{color:var(--danger)}.submit-bar{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--line);background:#f6f8f7eb;border-radius:8px;justify-content:space-between;align-items:center;gap:12px;padding:12px;display:flex;position:sticky;bottom:0}.submit-bar span{color:var(--muted);font-size:13px}@media (width<=1180px){.admin-shell{grid-template-columns:1fr}.side-rail{flex-direction:row;height:auto;position:static;overflow-x:auto}.rail-button.bottom{margin-top:0;margin-left:auto}.admin-grid{grid-template-columns:220px minmax(0,1fr)}.records-column{grid-column:1/-1;grid-template-columns:1fr 1fr}}@media (width<=760px){.workspace{padding:14px}.top-bar,.submit-bar{flex-direction:column;align-items:stretch}.admin-grid,.records-column,.field-row,.question-controls{grid-template-columns:1fr}.side-rail{padding:10px}.brand{border-bottom:0;min-width:210px;padding-bottom:6px}.student-page{place-items:start center;padding:14px}.student-form h1{font-size:23px}.attachment-composer{flex-direction:column;align-items:stretch}.attach-button{width:100%}}