@import"https://fonts.googleapis.com/css2?family=Baloo+2:wght@400;500;600;700&display=swap";.toast-container[data-v-6575750e]{position:fixed;top:24px;left:50%;transform:translate(-50%);z-index:10000;display:flex;flex-direction:column;gap:10px;pointer-events:none}.toast[data-v-6575750e]{display:flex;align-items:center;gap:10px;padding:12px 20px;border-radius:16px;background:#fff;font-size:14px;font-weight:500;box-shadow:var(--elev-4);pointer-events:auto;max-width:480px}.toast-error[data-v-6575750e]{background:var(--warn-red-soft);color:#b85040}.toast-success[data-v-6575750e]{background:var(--accent-green-soft);color:#5c9a5c}.toast-info[data-v-6575750e]{background:var(--accent-blue-soft);color:var(--accent-blue)}.toast-enter-active[data-v-6575750e],.toast-leave-active[data-v-6575750e]{transition:all .25s ease-out}.toast-enter-from[data-v-6575750e]{opacity:0;transform:translateY(-12px)}.toast-leave-to[data-v-6575750e]{opacity:0;transform:translateY(-8px)}.modal-mask[data-v-4bf27e52]{position:fixed;inset:0;background:#3d281766;z-index:9000;display:flex;align-items:center;justify-content:center;backdrop-filter:blur(2px)}.modal-card[data-v-4bf27e52]{background:#fff;border-radius:32px;padding:36px 40px;max-width:420px;text-align:center;box-shadow:var(--elev-5);display:flex;flex-direction:column;align-items:center;gap:12px}.modal-icon[data-v-4bf27e52]{width:72px;height:72px;border-radius:22px;background:linear-gradient(135deg,#ffe3cc,#fff 70%);color:var(--brand-primary);display:flex;align-items:center;justify-content:center;margin-bottom:8px;box-shadow:var(--elev-2)}h2[data-v-4bf27e52]{font-size:22px;font-weight:700;color:var(--text-primary);margin:0}p[data-v-4bf27e52]{font-size:14px;color:var(--text-secondary);line-height:1.6;margin:0 0 8px}.actions[data-v-4bf27e52]{display:flex;gap:12px;margin-top:8px}:root{--brand-primary: #FF8C42;--brand-primary-dark: #E5732C;--brand-primary-light: #FF9F5C;--brand-primary-soft: #FFE3CC;--accent-blue: #5BA3D0;--accent-blue-soft: #D9ECF7;--accent-green: #7AB87A;--accent-green-soft: #DEF0DE;--accent-purple: #9B7EBD;--accent-purple-soft: #E8DFF1;--warn-red: #E8745A;--warn-red-soft: #FBDDD4;--warn-yellow: #F4C95D;--warn-yellow-soft: #FCEFC9;--bg-base: #FFF8F0;--bg-card: #FFFFFF;--bg-elevated: #FFFCF7;--bg-sidebar: #FAEFE0;--text-primary: #3D2817;--text-secondary: #7C6655;--text-tertiary: #B5A595;--text-on-primary: #FFFFFF;--border-soft: #F0E4D2;--border-default: #E8D9C2;--divider: #F5EAD8;--shadow-clay: rgba(196, 142, 84, .18);--shadow-clay-light: rgba(196, 142, 84, .12);--shadow-clay-soft: rgba(196, 142, 84, .08);--shadow-highlight: rgba(255, 255, 255, .9);--elev-1: 0 2px 6px rgba(196, 142, 84, .08);--elev-2: 0 8px 24px rgba(196, 142, 84, .12), 0 2px 4px rgba(196, 142, 84, .08), inset 0 1px 0 rgba(255, 255, 255, .9);--elev-4: 0 12px 32px rgba(196, 142, 84, .16), 0 4px 8px rgba(196, 142, 84, .1);--elev-5: 0 24px 64px rgba(61, 40, 23, .18), 0 8px 16px rgba(61, 40, 23, .08);--elev-inset: inset 0 2px 4px rgba(196, 142, 84, .1)}*{box-sizing:border-box;margin:0;padding:0}html,body{width:100%;min-height:820px;background:var(--bg-base);font-family:-apple-system,SF Pro Rounded,"Baloo 2",PingFang SC,Hiragino Sans GB,system-ui,sans-serif;color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-size:15px;line-height:1.6}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}input,textarea{font-family:inherit;outline:none;border:none;background:none;color:inherit}a{color:var(--accent-blue);text-decoration:none}.app{display:flex;width:100vw;min-height:100vh;height:820px;background:var(--bg-base)}.sidebar{width:200px;background:var(--bg-sidebar);padding:24px 16px;display:flex;flex-direction:column;flex-shrink:0;border-right:1px solid var(--border-soft)}.sidebar-logo{display:flex;align-items:center;gap:12px;height:64px;padding:0 8px;margin-bottom:24px}.sidebar-logo-mark{width:44px;height:44px;border-radius:14px;background:linear-gradient(135deg,#ff9f5c,#ff8c42);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;font-family:"Baloo 2",sans-serif;box-shadow:0 4px 12px #ff8c4259,inset 0 1px #fff6}.sidebar-logo-text{font-size:18px;font-weight:700;color:var(--text-primary);letter-spacing:-.2px}.sidebar-nav{display:flex;flex-direction:column;gap:6px;flex:1}.sidebar-nav-item{display:flex;align-items:center;gap:12px;height:56px;padding:0 14px;border-radius:14px;color:var(--text-secondary);font-size:15px;font-weight:500;cursor:pointer;transition:background .2s ease-out,transform .2s ease-out}.sidebar-nav-item:hover{background:#ff8c4214;color:var(--text-primary)}.sidebar-nav-item.active{background:linear-gradient(135deg,#ff9f5c,#ff8c42);color:#fff;box-shadow:0 4px 12px #ff8c424d,inset 0 1px #ffffff4d}.sidebar-nav-item .icon{width:24px;height:24px;flex-shrink:0}.sidebar-footer{padding:12px 14px;border-top:1px solid var(--border-soft);display:flex;align-items:center;gap:10px}.sidebar-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#5ba3d0,#4a8fb8);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:16px;flex-shrink:0}.sidebar-user-name{font-size:14px;font-weight:600;color:var(--text-primary)}.sidebar-user-grade{font-size:12px;color:var(--text-tertiary)}.main{flex:1;display:flex;flex-direction:column;min-width:0;overflow:hidden}.app-bar{height:72px;padding:16px 32px;display:flex;align-items:center;justify-content:space-between;flex-shrink:0}.app-bar-title{font-size:28px;font-weight:700;letter-spacing:-.3px;color:var(--text-primary)}.app-bar-subtitle{font-size:13px;color:var(--text-secondary);margin-top:2px}.app-bar-right{display:flex;align-items:center;gap:16px}.content{flex:1;padding:8px 32px 32px;overflow-y:auto}.card{background:var(--bg-card);border-radius:24px;padding:24px;box-shadow:var(--elev-2);transition:transform .2s ease-out,box-shadow .2s ease-out}.card.clickable{cursor:pointer}.card.clickable:hover{transform:translateY(-2px);box-shadow:var(--elev-4)}.card-title{font-size:22px;font-weight:600;letter-spacing:-.2px;color:var(--text-primary);margin-bottom:12px}.card-subtitle{font-size:13px;color:var(--text-secondary);margin-bottom:16px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;font-size:15px;font-weight:600;border-radius:16px;letter-spacing:.2px;min-height:48px;transition:transform .15s ease-out,box-shadow .15s ease-out,background .15s ease-out;user-select:none;white-space:nowrap}.btn-primary{background:linear-gradient(180deg,#ff9f5c,#ff8c42);color:#fff;font-size:17px;padding:14px 28px;min-height:52px;box-shadow:0 6px #e5732c,0 8px 16px #e5732c59,inset 0 1px #fff6}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 7px #e5732c,0 10px 20px #e5732c66,inset 0 1px #fff6}.btn-primary:active{transform:translateY(4px);box-shadow:0 2px #e5732c,0 3px 6px #e5732c4d,inset 0 1px #fff6}.btn-primary:disabled{background:#f0e4d2;color:var(--text-tertiary);box-shadow:none;cursor:not-allowed;transform:none}.btn-secondary{background:#fff;color:var(--brand-primary);border:2px solid var(--brand-primary-soft);box-shadow:0 4px #f0e4d2,0 6px 12px #c48e541f}.btn-secondary:hover{background:var(--bg-base)}.btn-secondary:active{transform:translateY(2px);box-shadow:0 2px #f0e4d2,0 3px 6px #c48e541a}.btn-text{background:transparent;color:var(--accent-blue);box-shadow:none;padding:8px 12px;min-height:40px}.btn-text:hover{background:var(--accent-blue-soft)}.btn-danger{background:linear-gradient(180deg,#ef8870,#e8745a);color:#fff;box-shadow:0 6px #c75943,0 8px 16px #e8745a59,inset 0 1px #fff6}.btn-danger:active{transform:translateY(4px);box-shadow:0 2px #c75943,0 3px 6px #e8745a4d}.btn-icon{width:60px;height:60px;padding:0;border-radius:18px}.chip{display:inline-flex;align-items:center;gap:4px;height:28px;padding:0 12px;border-radius:12px;font-size:12px;font-weight:500;letter-spacing:.2px;white-space:nowrap}.chip-math{background:var(--accent-blue-soft);color:var(--accent-blue)}.chip-chinese{background:var(--accent-green-soft);color:#5c9a5c}.chip-english{background:var(--accent-purple-soft);color:#7e5fa0}.chip-orange{background:var(--brand-primary-soft);color:var(--brand-primary-dark)}.chip-warn{background:var(--warn-yellow-soft);color:#b68a1f}.chip-error{background:var(--warn-red-soft);color:#b85040}.input{display:block;width:100%;padding:14px 18px;font-size:17px;font-weight:500;background:#fff;border:2px solid var(--border-default);border-radius:14px;color:var(--text-primary);transition:border-color .15s ease-out,box-shadow .15s ease-out}.input::placeholder{color:var(--text-tertiary)}.input:focus{border-color:var(--brand-primary);box-shadow:0 0 0 4px #ff8c4226}.input.error{border-color:var(--warn-red);box-shadow:0 0 0 4px #e8745a1f}.badge{display:inline-flex;align-items:center;justify-content:center;min-width:24px;height:24px;padding:0 8px;border-radius:12px;font-size:12px;font-weight:600;background:var(--brand-primary);color:#fff}.badge-dot{width:8px;height:8px;border-radius:50%;background:var(--warn-red);display:inline-block}.progress-track{width:100%;height:12px;background:var(--border-soft);border-radius:6px;overflow:hidden;box-shadow:var(--elev-inset)}.progress-fill{height:100%;background:linear-gradient(90deg,#ff9f5c,#ff8c42);border-radius:6px;transition:width .4s ease-out}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:64px 24px;text-align:center}.empty-state-icon{width:96px;height:96px;border-radius:32px;background:linear-gradient(135deg,var(--brand-primary-soft) 0%,var(--bg-card) 100%);display:flex;align-items:center;justify-content:center;margin-bottom:16px;box-shadow:var(--elev-2)}.empty-state-title{font-size:18px;font-weight:600;color:var(--text-primary);margin-bottom:6px}.empty-state-desc{font-size:14px;color:var(--text-secondary)}.flex{display:flex}.flex-col{display:flex;flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}.gap-20{gap:20px}.gap-24{gap:24px}.flex-1{flex:1}.text-secondary{color:var(--text-secondary)}.text-tertiary{color:var(--text-tertiary)}.text-primary-orange{color:var(--brand-primary)}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-8px)}50%{transform:translate(8px)}75%{transform:translate(-8px)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes blink{50%{opacity:0}}.shake{animation:shake .4s linear}.icon{display:inline-block;vertical-align:middle;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}html,body,#app{width:100%;height:100%;overflow:hidden}body{position:fixed;width:100vw;height:100vh}.fade-enter-active,.fade-leave-active{transition:opacity .2s ease-out}.fade-enter-from,.fade-leave-to{opacity:0}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#c48e542e;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#c48e5452}@supports (padding: env(safe-area-inset-top)){body{padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom)}}.spinner{width:24px;height:24px;border:3px solid var(--brand-primary-soft);border-top-color:var(--brand-primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}*{-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none}input,textarea,[contenteditable=true],.selectable{-webkit-user-select:text;user-select:text}