*{box-sizing:border-box}html,body,#root{width:100%;min-height:100%;margin:0}body{background:radial-gradient(circle at 12% 18%,#10787817,#0000 36%),radial-gradient(circle at 88% 8%,#0a486814,#0000 34%),#eef3f7}.counter{color:var(--accent);background:var(--accent-bg);border:2px solid #0000;border-radius:5px;margin-bottom:24px;padding:5px 10px;font-size:16px;transition:border-color .3s}.counter:hover{border-color:var(--accent-border)}.counter:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.hero{position:relative}.hero .base,.hero .framework,.hero .vite{margin:0 auto;inset-inline:0}.hero .base{z-index:0;width:170px;position:relative}.hero .framework,.hero .vite{position:absolute}.hero .framework{z-index:1;height:28px;top:34px;transform:perspective(2000px)rotate(300deg)rotateX(44deg)rotateY(39deg)scale(1.4)}.hero .vite{z-index:0;width:auto;height:26px;top:107px;transform:perspective(2000px)rotate(300deg)rotateX(40deg)rotateY(39deg)scale(.8)}#center{flex-direction:column;flex-grow:1;place-content:center;place-items:center;gap:25px;display:flex}@media (width<=1024px){#center{gap:18px;padding:32px 20px 24px}}#next-steps{border-top:1px solid var(--border);text-align:left;display:flex}#next-steps>div{flex:1 1 0;padding:32px}@media (width<=1024px){#next-steps>div{padding:24px 20px}}#next-steps .icon{width:22px;height:22px;margin-bottom:16px}@media (width<=1024px){#next-steps{text-align:center;flex-direction:column}}#docs{border-right:1px solid var(--border)}@media (width<=1024px){#docs{border-right:none;border-bottom:1px solid var(--border)}}#next-steps ul{gap:8px;margin:32px 0 0;padding:0;list-style:none;display:flex}#next-steps ul .logo{height:18px}#next-steps ul a{color:var(--text-h);background:var(--social-bg);border-radius:6px;align-items:center;gap:8px;padding:6px 12px;font-size:16px;text-decoration:none;transition:box-shadow .3s;display:flex}#next-steps ul a:hover{box-shadow:var(--shadow)}#next-steps ul a .button-icon{width:18px;height:18px}@media (width<=1024px){#next-steps ul{flex-wrap:wrap;justify-content:center;margin-top:20px}#next-steps ul li{flex:calc(50% - 8px)}#next-steps ul a{box-sizing:border-box;justify-content:center;width:100%}}#spacer{border-top:1px solid var(--border);height:88px}@media (width<=1024px){#spacer{height:48px}}.ticks{width:100%;position:relative}.ticks:before,.ticks:after{content:"";border:5px solid #0000;position:absolute;top:-4.5px}.ticks:before{border-left-color:var(--border);left:0}.ticks:after{border-right-color:var(--border);right:0}:root{--primary:#1e3a5f;--primary-light:#2d5a8f;--success:#0d7e6b;--danger:#a8453c;--border:#d0d8e0;--background:#f5f7fa;--text-primary:#1a1f2e;--text-secondary:#555d77;--text-muted:#8a9aaf}.app-root{color:var(--text-primary);background:var(--background);flex-direction:column;min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;display:flex;width:100%!important;max-width:100%!important;text-align:inherit!important;border-inline:none!important;margin:0!important}.app-header{background:linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);color:#fff;z-index:100;padding:24px 28px;position:sticky;top:0;box-shadow:0 4px 12px #0000001a}.header-content{justify-content:space-between;align-items:center;max-width:1400px;margin:0 auto;display:flex}.header-left{flex:1}.header-right{align-items:center;gap:16px;display:flex}.role-selector{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffff1a;border-radius:8px;gap:8px;padding:8px;display:flex}.role-selector .role-btn{color:#fff;cursor:pointer;background:0 0;border:2px solid #0000;border-radius:6px;align-items:center;gap:6px;padding:8px 12px;font-size:12px;font-weight:600;transition:all .2s;display:flex}.role-selector .role-btn:hover{background:#ffffff26;border-color:#ffffff4d}.role-selector .role-btn.active{color:var(--primary);background:#fff;border-color:#fff}.role-selector .role-icon{font-size:14px;font-weight:700}.role-selector .role-label{display:none}@media (width<=1024px){.role-selector .role-label{font-size:11px;display:inline}}.app-title{letter-spacing:-.5px;margin:0 0 4px;font-size:28px;font-weight:700}.app-subtitle{opacity:.9;margin:0;font-size:13px}.app-container{flex:1;grid-template-columns:260px 1fr;gap:0;width:100%;display:grid}@media (width<=1024px){.app-container{grid-template-columns:220px 1fr}}@media (width<=768px){.app-container{grid-template-columns:1fr}}.sidebar{border-right:1px solid var(--border);background:#fff;height:calc(100vh - 76px);padding:24px;overflow-y:auto}.sidebar-section:last-child{margin-bottom:0}.sidebar-section h3{color:var(--text-primary);text-transform:uppercase;letter-spacing:.5px;margin:0 0 12px;font-size:14px;font-weight:600}.form-group{margin-bottom:12px}.form-group label{color:var(--text-secondary);margin-bottom:6px;font-size:13px;font-weight:500;display:block}.form-group input{border:1px solid var(--border);box-sizing:border-box;border-radius:6px;width:100%;padding:8px 10px;font-size:13px;transition:all .2s}.form-group input:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #1e3a5f14}.role-options{flex-direction:column;gap:8px;display:flex}.role-btn{border:1px solid var(--border);cursor:pointer;color:var(--text-primary);text-align:left;background:#fff;border-radius:6px;align-items:center;gap:8px;padding:10px 12px;font-size:13px;font-weight:500;transition:all .2s;display:flex}.role-btn:hover{border-color:var(--primary);background:#f5f7fa}.role-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}.role-icon{flex-shrink:0;font-size:18px}.role-name{flex:1}.role-description{color:var(--text-secondary);font-size:13px;line-height:1.6}.role-description p{margin:0}.stats{font-size:13px}.stat-item{border-bottom:1px solid var(--border);justify-content:space-between;padding:8px 0;display:flex}.stat-item:last-child{border-bottom:none}.stat-label{color:var(--text-muted)}.stat-value{color:var(--primary);font-weight:600}.user-section{border-bottom:2px solid var(--border);padding-bottom:16px}.user-input{border:1px solid var(--border);box-sizing:border-box;border-radius:6px;width:100%;padding:10px;font-size:13px;transition:all .2s}.user-input:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #1e3a5f14}.role-info{flex-direction:column;gap:12px;display:flex}.role-badge{background:var(--primary);color:#fff;text-align:center;border-radius:6px;padding:8px 12px;font-size:13px;font-weight:600}.sidebar-nav{flex-direction:column;gap:8px;display:flex}.nav-link{color:var(--primary);border:1px solid #0000;border-radius:6px;padding:10px 12px;font-size:13px;font-weight:500;text-decoration:none;transition:all .2s;display:block}.nav-link:hover{border-color:var(--primary);background:#1e3a5f14}.info-box{border-left:3px solid var(--primary);background:#f0f4f9;border-radius:6px;padding:12px}.info-text{color:var(--text-secondary);margin:0;font-size:12px;line-height:1.6}.profile-header{background:#f8f9fb;border-radius:8px;align-items:center;gap:12px;margin-bottom:16px;padding:12px;display:flex}.profile-avatar{background:var(--primary);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;font-size:18px;font-weight:700;display:flex}.profile-info{flex:1;min-width:0}.profile-name{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;margin:0 0 2px;font-size:13px;font-weight:600;overflow:hidden}.profile-role{color:var(--text-secondary);margin:0;font-size:11px}.profile-stats{flex-direction:column;gap:10px;display:flex}.stat-row{background:#f5f7fa;border-radius:6px;justify-content:space-between;align-items:center;padding:8px;font-size:12px;display:flex}.stat-label{color:var(--text-secondary);font-weight:500}.stat-value{color:var(--primary);text-align:right;min-width:24px;font-weight:700}.stat-value.pending{color:#f59e0b}.stat-value.approved,.stat-value.answered{color:var(--success)}.profile-status{background:#fef3c7;border-left:3px solid #f59e0b;border-radius:6px;margin:8px 0;padding:8px 10px}.status-message{color:#78350f;margin:0;font-size:12px;font-weight:500}.profile-bio{border-left:3px solid var(--primary);background:#f0f4f9;border-radius:6px;margin:8px 0;padding:8px 10px}.bio-text{color:var(--text-secondary);margin:0;font-size:12px;line-height:1.5}.btn-edit-profile{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:6px;width:100%;margin-top:12px;padding:10px;font-size:12px;font-weight:600;transition:all .2s}.btn-edit-profile:hover{background:var(--primary-light);box-shadow:0 2px 8px #1e3a5f26}.modal-overlay{z-index:1000;background:#00000080;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal-content{background:#fff;border-radius:12px;width:100%;max-width:600px;max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px #0003}.modal-header{border-bottom:1px solid var(--border);background:#fff;justify-content:space-between;align-items:center;padding:24px;display:flex;position:sticky;top:0}.modal-header h2{color:var(--text-primary);margin:0;font-size:20px}.modal-close{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;width:32px;height:32px;padding:0;font-size:28px;transition:all .2s;display:flex}.modal-close:hover{color:var(--text-primary)}.profile-edit-modal{width:100%;max-width:500px}.profile-form{flex-direction:column;gap:24px;padding:24px;display:flex}.avatar-preview{flex-direction:column;align-items:center;gap:12px;display:flex}.avatar-circle{color:#fff;border-radius:50%;justify-content:center;align-items:center;width:80px;height:80px;font-size:32px;font-weight:700;transition:all .2s;display:flex}.preview-label{color:var(--text-secondary);margin:0;font-size:12px}.color-picker{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}.color-option{cursor:pointer;border:3px solid #0000;border-radius:50%;width:40px;height:40px;transition:all .2s}.color-option:hover{transform:scale(1.1)}.color-option.active{box-shadow:0 0 0 2px var(--text-primary);border-color:#fff}.profile-textarea{border:1px solid var(--border);resize:vertical;box-sizing:border-box;border-radius:6px;width:100%;padding:10px;font-family:inherit;font-size:13px;transition:all .2s}.profile-textarea:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #1e3a5f14}.profile-input{border:1px solid var(--border);box-sizing:border-box;border-radius:6px;width:100%;padding:10px;font-size:13px;transition:all .2s}.profile-input:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #1e3a5f14}.char-count{color:var(--text-secondary);text-align:right;margin:4px 0 0;font-size:11px}.form-actions{gap:12px;margin-top:12px;display:flex}.btn-cancel{border:1px solid var(--border);cursor:pointer;background:#f5f7fa;border-radius:6px;flex:1;padding:12px;font-size:13px;font-weight:600;transition:all .2s}.btn-cancel:hover{border-color:var(--text-secondary);background:#eff2f9}.btn-save{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:6px;flex:1;padding:12px;font-size:13px;font-weight:600;transition:all .2s}.btn-save:hover{background:var(--primary-light)}.payment-section{padding:20px 0}.payment-section h3{color:var(--text-primary);margin-top:0}.revenue-dashboard{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px;display:grid}.revenue-card{background:linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);color:#fff;border-radius:12px;flex-direction:column;gap:8px;padding:20px;display:flex;box-shadow:0 4px 12px #1e3a5f26}.revenue-label{opacity:.9;margin:0;font-size:13px;font-weight:500}.revenue-amount{margin:0;font-size:24px;font-weight:700}.fee-setting{background:#f8f9fb;border-radius:8px;margin-bottom:24px;padding:20px}.fee-setting h4{color:var(--text-primary);margin:0 0 12px;font-size:14px}.fee-input-group{align-items:center;gap:8px;margin-bottom:12px;display:flex}.currency-symbol{color:var(--primary);font-size:18px;font-weight:600}.fee-input{border:2px solid var(--border);border-radius:6px;width:150px;padding:10px;font-size:14px;font-weight:600;transition:all .2s}.fee-input:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #1e3a5f14}.fee-help{color:var(--text-secondary);margin:0;font-size:12px}.transaction-history{border:1px solid var(--border);background:#fff;border-radius:8px;padding:16px}.transaction-history h4{color:var(--text-primary);margin:0 0 16px;font-size:14px}.transaction-list{flex-direction:column;gap:12px;display:flex}.transaction-item{border-left:3px solid var(--success);background:#f8f9fb;border-radius:6px;justify-content:space-between;align-items:center;padding:12px;display:flex}.transaction-info{flex:1}.transaction-student{color:var(--text-primary);margin:0 0 4px;font-size:13px;font-weight:600}.transaction-date{color:var(--text-secondary);margin:0;font-size:11px}.transaction-amount{align-items:center;gap:12px;display:flex}.amount{color:var(--success);margin:0;font-size:14px;font-weight:700}.status{border-radius:4px;padding:4px 8px;font-size:11px;font-weight:600}.status-completed{color:#065f46;background:#d1fae5}.status-pending{color:#78350f;background:#fef3c7}.status-failed{color:#7f1d1d;background:#fee2e2}.products-manager{padding:16px 0}.products-header{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.products-header h3{color:var(--text-primary);margin:0;font-size:18px}.btn-add-product{background:var(--success);color:#fff;cursor:pointer;border:none;border-radius:6px;padding:10px 16px;font-size:13px;font-weight:600;transition:all .2s}.btn-add-product:hover{background:#059669;box-shadow:0 4px 12px #0d7e6b33}.empty-state{text-align:center;color:var(--text-secondary);background:#f8f9fb;border-radius:8px;margin:20px 0;padding:40px}.products-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;display:grid}.product-card{border:1px solid var(--border);background:#fff;border-radius:8px;padding:16px;transition:all .2s;box-shadow:0 2px 8px #0000000d}.product-card:hover{border-color:var(--primary);box-shadow:0 8px 16px #0000001a}.product-header{justify-content:space-between;align-items:flex-start;gap:8px;margin-bottom:12px;display:flex}.product-header h4{color:var(--text-primary);flex:1;margin:0;font-size:15px}.product-category{color:var(--primary);white-space:nowrap;background:#e6f2ff;border-radius:4px;padding:4px 8px;font-size:11px;font-weight:600}.product-description{color:var(--text-secondary);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:0 0 12px;font-size:13px;line-height:1.5;display:-webkit-box;overflow:hidden}.product-price{text-align:center;background:#f0f4f9;border-radius:6px;margin:12px 0;padding:8px}.product-price strong{color:var(--success);font-size:18px}.product-actions{gap:8px;display:flex}.btn-edit,.btn-delete{border:1px solid var(--border);cursor:pointer;background:#fff;border-radius:4px;flex:1;padding:8px;font-size:12px;font-weight:600;transition:all .2s}.btn-edit:hover{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-delete:hover{background:var(--danger);color:#fff;border-color:var(--danger)}.product-form{flex-direction:column;gap:16px;padding:20px;display:flex}.form-row{grid-template-columns:1fr 1fr;gap:16px;display:grid}.price-input{border:1px solid var(--border);border-radius:6px;align-items:center;gap:8px;display:flex;overflow:hidden}.price-input span{color:var(--primary);background:#f8f9fb;padding:0 10px;font-weight:600}.price-input input{border:none;flex:1;padding:10px;font-size:13px}.price-input input:focus{outline:none}@media (width<=768px){.sidebar{display:none}}main{grid-template-columns:1fr 1.3fr;gap:24px;padding:24px;display:grid;overflow-y:auto}@media (width<=1024px){main{grid-template-columns:1fr;gap:20px;padding:20px}}@media (width<=768px){main{grid-template-columns:1fr;gap:16px;padding:16px}}.role-page{flex-direction:column;gap:24px;display:flex}.page-header{flex-direction:column;gap:8px;display:flex}.page-header h2{color:var(--primary);margin:0;font-size:24px;font-weight:600}.page-header p{color:var(--text-secondary);margin:0;font-size:14px}.page-content{flex-direction:column;gap:24px;display:flex}.form-section,.list-section{background:#fff;border-radius:10px;padding:24px;box-shadow:0 2px 8px #0000000f}.form-section h3,.list-section h3{color:var(--text-primary);margin:0 0 16px;font-size:18px;font-weight:600}.list-section.full-width{grid-column:1/-1}.question-stats{border-bottom:1px solid var(--border);grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-bottom:20px;padding-bottom:20px;display:grid}.stat{background:#f5f7fa;border-radius:8px;flex-direction:column;align-items:center;gap:4px;padding:12px;display:flex}.stat strong{color:var(--primary);font-size:24px;font-weight:700}.stat span{color:var(--text-muted);font-size:12px;font-weight:500}.review-section{background:linear-gradient(135deg,#fff5f5 0%,#fffbf7 100%);border:2px solid #f5d4d4}.section-header{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.section-header h3{margin:0;font-size:18px;font-weight:600}.badge{background:var(--danger);color:#fff;border-radius:6px;padding:4px 10px;font-size:12px;font-weight:600;display:inline-block}.empty-state{text-align:center;color:var(--text-muted);padding:40px 20px}.pending-questions{flex-direction:column;gap:12px;display:flex}.review-item{background:#fff;border:1.5px solid #f0d4d4;border-radius:8px;padding:16px;transition:all .2s;box-shadow:0 2px 6px #a8433c14}.review-item:hover{border-color:var(--danger);box-shadow:0 4px 12px #a8433c1f}.review-item.pending{border-left:4px solid var(--danger)}.review-meta{align-items:center;gap:12px;margin-bottom:10px;font-size:13px;display:flex}.review-meta strong{color:var(--text-primary);font-weight:600}.review-time{color:var(--text-muted)}.review-badge{text-transform:uppercase;letter-spacing:.3px;border-radius:4px;padding:3px 7px;font-size:11px;font-weight:600;display:inline-block}.pending-badge{color:#c45a49;background:#fff0e8}.review-content{white-space:pre-wrap;word-break:break-word;color:var(--text-primary);background:#fafbfc;border-left:3px solid #ffc9c0;border-radius:6px;margin:12px 0 14px;padding:10px;line-height:1.6}.review-actions{gap:8px;margin-top:12px;display:flex}.btn-approve,.btn-reject{cursor:pointer;border:none;border-radius:6px;flex:1;padding:10px 14px;font-size:13px;font-weight:600;transition:all .2s}.btn-approve{background:var(--success);color:#fff}.btn-approve:hover{background:#0a6b5f;box-shadow:0 4px 12px #0d7e6b33}.btn-reject{color:var(--danger);background:#fce8e8;border:1px solid #f5d4d4}.btn-reject:hover{background:var(--danger);color:#fff;border-color:var(--danger)}.form-help{color:#d18a7f;margin:-8px 0 12px;font-size:13px;font-weight:500}.pending-notice{border:1px solid #f0d4d4;border-left:3px solid var(--danger);background:#fff9f7;border-radius:6px;margin-bottom:16px;padding:12px 14px}.pending-notice p{color:#a8453c;margin:0;font-size:13px;line-height:1.5}.badge.pending{background:var(--danger)}.form-attachments{border:1px dashed var(--border);background:#f5f7fa;border-radius:6px;margin-top:12px;padding:12px}.file-input-label{border:1px solid var(--border);cursor:pointer;color:var(--primary);text-align:center;background:#fff;border-radius:6px;padding:10px 12px;font-size:13px;font-weight:500;transition:all .2s;display:block}.file-input-label:hover{border-color:var(--primary);background:#f9fbfe;box-shadow:0 2px 6px #1e3a5f1a}.preview-list{grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px;margin-top:10px;display:grid}.preview-item{aspect-ratio:1;background:#f0f2f5;border-radius:6px;justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.preview-item img,.preview-item video{object-fit:cover;width:100%;height:100%}.preview-item .btn-remove{color:#fff;cursor:pointer;background:#0009;border:none;border-radius:4px;width:24px;height:24px;padding:0;font-size:14px;font-weight:600;transition:all .2s;position:absolute;top:4px;right:4px}.preview-item .btn-remove:hover{background:#000c;transform:scale(1.05)}.answer-attachments{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;margin-top:12px;display:grid}.attachment-item{border:1px solid var(--border);background:#f0f2f5;border-radius:6px;overflow:hidden}.attachment-image,.attachment-video{object-fit:cover;width:100%;height:auto;max-height:300px;display:block}.attachment-file{color:var(--text-secondary);align-items:center;gap:8px;padding:16px;display:flex}.file-icon{font-size:20px}.file-name{word-break:break-word;font-size:13px}.category-badge{color:#1e3a5f;background:#e6f2ff;border-radius:4px;padding:4px 8px;font-size:12px;font-weight:600;display:inline-block}.question-form .form-group{margin-bottom:12px}.question-form .form-group label{color:var(--text-secondary);margin-bottom:6px;font-size:13px;font-weight:500;display:block}.question-form select{border:1px solid var(--border);width:100%;color:var(--text-primary);box-sizing:border-box;cursor:pointer;background:#fff;border-radius:6px;padding:8px 10px;font-size:13px;transition:all .2s}.question-form select:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #1e3a5f14}main section{flex-direction:column;display:flex}main h2{color:var(--text-primary);margin:0 0 16px;font-size:18px;font-weight:600}.question-form{background:#fff;border-radius:10px;padding:24px;box-shadow:0 2px 8px #0000000f}.question-form textarea{border:1.5px solid var(--border);resize:vertical;box-sizing:border-box;width:100%;color:var(--text-primary);background:#fff;border-radius:8px;padding:12px 14px;font-family:inherit;font-size:14px;line-height:1.5;transition:all .2s}.question-form textarea:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #1e3a5f14}.question-form button{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:8px;margin-top:12px;padding:10px 16px;font-size:14px;font-weight:500;transition:all .2s}.question-form button:hover{background:var(--primary-light);box-shadow:0 4px 12px #1e3a5f26}.question-form button:active{transform:scale(.98)}.question-list{flex-direction:column;gap:14px;display:flex}.question-list>p{color:var(--text-muted);font-style:italic}.question-item{border:1px solid var(--border);background:#fff;border-radius:10px;padding:20px;transition:all .2s;box-shadow:0 2px 8px #0000000a}.question-item:hover{box-shadow:0 4px 12px #00000014}.question-item.answered{border-left:4px solid var(--success)}.question-item .meta{color:var(--text-muted);justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;font-size:13px;display:flex}.question-item strong{color:var(--text-primary);font-weight:600}.question-item .status{border-radius:6px;padding:4px 8px;font-size:12px;font-weight:500;display:inline-block}.question-item.open .status{color:#b85e14;background:#fef2e8}.question-item.answered .status{color:#0d7e6b;background:#e6f7f3}.question-item .time{color:var(--text-muted);font-size:13px}.question-item .content{white-space:pre-wrap;word-break:break-word;color:var(--text-primary);margin:12px 0 16px;line-height:1.6}.question-item .answer{border-left:4px solid var(--success);color:var(--text-primary);background:#f0faf8;border-radius:8px;margin-top:14px;padding:14px 16px}.question-item .answer h4{color:var(--success);text-transform:uppercase;letter-spacing:.5px;margin:0 0 8px;font-size:13px;font-weight:600}.question-item .answer p{margin:0;line-height:1.6}.question-item .actions{flex-wrap:wrap;gap:8px;margin-top:14px;display:flex}.question-item button{border:1px solid var(--border);color:var(--text-primary);cursor:pointer;background:#fff;border-radius:6px;padding:8px 12px;font-size:13px;font-weight:500;transition:all .2s}.question-item button:hover{border-color:var(--text-muted);background:#f5f7fa}.question-item button:active{transform:scale(.96)}.answer-form{border:1px solid var(--border);background:#fafbfc;border-radius:8px;margin-top:12px;padding:14px}.answer-form textarea{border:1px solid var(--border);box-sizing:border-box;resize:vertical;width:100%;color:var(--text-primary);background:#fff;border-radius:6px;padding:10px 12px;font-family:inherit;font-size:14px;line-height:1.5;transition:all .2s}.answer-form textarea:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #1e3a5f14}.answer-form div{margin-top:10px}.answer-form button{background:var(--success);color:#fff;cursor:pointer;border:none;border-radius:6px;padding:8px 12px;font-size:13px;font-weight:500;transition:all .2s}.answer-form button:hover{background:#0a6b5f;box-shadow:0 2px 8px #0d7e6b26}.answer-form button:active{transform:scale(.96)}.tab-navigation{border-bottom:2px solid #e0e0e0;gap:16px;margin-bottom:24px;padding:0 0 12px;display:flex}.tab-button{color:#666;cursor:pointer;background:0 0;border:none;padding:10px 20px;font-size:15px;font-weight:500;transition:color .2s;position:relative}.tab-button:hover{color:var(--primary)}.tab-button.active{color:var(--primary);font-weight:600}.tab-button.active:after{content:"";background:var(--primary);border-radius:2px 2px 0 0;height:3px;position:absolute;bottom:-14px;left:0;right:0}.teacher-sub-page{width:100%}.teacher-sub-page .page-header{border-bottom:1px solid #e0e0e0;margin-bottom:24px;padding-bottom:16px}.teacher-sub-page .page-header h2{color:var(--primary);margin-bottom:8px;font-size:24px;font-weight:600}.teacher-sub-page .page-header p{color:#666;margin:0;font-size:14px}.nav-link-button{cursor:pointer;text-align:left;color:#333;background:0 0;border:none;width:100%;padding:10px 0;font-family:inherit;font-size:14px;transition:color .2s}.nav-link-button:hover{color:var(--primary)}:root{--primary:#0f4c5c;--primary-light:#1f6a7a;--success:#137a63;--danger:#b84a4a;--border:#d7e0e8;--background:#eef3f7;--surface:#fff;--surface-soft:#f7fafc;--text-primary:#19232f;--text-secondary:#4e6073;--text-muted:#76879a}.app-root{background:0 0;font-family:"M PLUS 1p",Hiragino Kaku Gothic ProN,Yu Gothic,sans-serif}.app-header{background:radial-gradient(circle at 12% 20%,#fff3,#0000 35%),linear-gradient(130deg,#0f4c5c 0%,#235f72 55%,#2f7b76 100%);padding:22px 28px;box-shadow:0 8px 24px #081f2a33}.app-title{letter-spacing:.02em;font-size:30px}.app-subtitle{letter-spacing:.08em;text-transform:uppercase;opacity:.82;font-size:12px}.role-selector{border:1px solid #ffffff3d;border-radius:999px;padding:7px}.role-selector .role-btn{border-radius:999px;padding:9px 14px}.app-container{grid-template-columns:290px 1fr;gap:20px;padding:20px}.sidebar{background:linear-gradient(#fff 0%,#f8fbfd 100%);border:1px solid #ffffff80;border-radius:18px;height:calc(100vh - 112px);padding:20px;position:sticky;top:94px;box-shadow:0 10px 28px #0b2d391a}.sidebar-section{margin-bottom:20px}.sidebar-section h3{color:#6a7d90;letter-spacing:.12em;font-size:12px}main{padding:0;display:block;overflow:visible}.role-page{gap:20px}.page-header{border:1px solid var(--border);background:linear-gradient(160deg,#fff 0%,#f6fafc 100%);border-radius:16px;padding:20px 22px;box-shadow:0 6px 18px #0c28360f}.page-content{gap:20px}.form-section,.list-section,.products-manager,.payment-section,.teacher-sub-page .page-content{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:20px;box-shadow:0 6px 20px #0924350d}.question-form{box-shadow:none;background:0 0;padding:0}.question-form textarea,.question-form select,.form-group input,.profile-input,.profile-textarea,.fee-input,.price-input,.price-input input{background:#fcfeff;border:1px solid #ccd7e1;border-radius:10px}.question-form textarea,.profile-textarea{min-height:116px}.question-form button,.btn-save,.btn-add-product,.btn-approve,.btn-edit-profile,.answer-form button{letter-spacing:.02em;border-radius:10px;font-weight:700}.question-form button,.btn-save,.btn-edit-profile{background:linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%)}.question-item{border:1px solid #d8e1e8;border-radius:14px;padding:18px;box-shadow:0 4px 14px #0d2d3f0d}.question-item .meta{flex-wrap:wrap;justify-content:flex-start;gap:8px}.teacher-badge,.review-badge,.status,.badge,.product-category{border-radius:999px}.tab-navigation{border:none;gap:10px;margin-bottom:8px;padding:0}.tab-button{color:var(--text-secondary);background:#f8fbfd;border:1px solid #cfd9e2;border-radius:999px;padding:10px 16px}.tab-button.active{color:#fff;background:linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);border-color:#0000}.tab-button.active:after{display:none}.revenue-card{border-radius:14px}.products-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}.product-card{border-radius:14px}.nav-link-button{color:#30465d;border-radius:10px;padding:10px 12px}.nav-link-button:hover{color:var(--primary);background:#edf4f8}.nav-link-button.active{color:#0c4452;background:linear-gradient(135deg,#0f4c5c1f 0%,#1f6a7a26 100%);font-weight:700}.question-list{gap:12px}.question-stats{margin-bottom:18px;padding-bottom:18px}.form-help{margin:0 0 14px}.pending-notice{margin-bottom:14px}@media (width<=1024px){.app-container{grid-template-columns:240px 1fr;gap:12px;padding:14px}.app-header{padding:18px 16px}.app-title{font-size:24px}.page-header,.form-section,.list-section,.products-manager,.payment-section,.teacher-sub-page .page-content{padding:16px}.page-content,.role-page{gap:16px}}@media (width<=768px){.app-container{grid-template-columns:1fr;padding:10px}.role-selector{gap:6px;padding:5px}.role-selector .role-btn{padding:8px 10px}.page-header,.form-section,.list-section,.products-manager,.payment-section,.teacher-sub-page .page-content{border-radius:12px;padding:14px}.tab-navigation{margin-bottom:4px;padding-bottom:2px;overflow-x:auto}.question-item{padding:14px}}