.app-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh;background:linear-gradient(135deg,#fff8f0,#f0fdfa)}.app-loading-spinner{width:36px;height:36px;border:3px solid #f57c0033;border-top-color:#f57c00;border-radius:50%;animation:app-loading-spin .8s linear infinite}.app-loading-text{margin-top:12px;color:#607d8b;font-size:13px;letter-spacing:.5px}@keyframes app-loading-spin{to{transform:rotate(360deg)}}.fade-enter-active,.fade-leave-active{transition:opacity .18s ease}:root{--mx-brand: #0ea5b7;--mx-brand-light: #42d7e8;--mx-brand-dark: #087184;--mx-brand-soft: #d9f8fc;--mx-sun: #ffb74d;--mx-sun-soft: #ffe0b2;--mx-mint: #26a69a;--mx-mint-soft: #b2dfdb;--mx-coral: #ef5350;--mx-coral-soft: #ffcdd2;--mx-ink: #14283a;--mx-ink-soft: #557084;--mx-ink-muted: #8499a8;--mx-bg: #eaf3f7;--mx-card: #f8fcfe;--mx-border: #cfe1e9;--mx-shadow: 0 5px 20px rgba(7, 27, 42, .09);--mx-shadow-lg: 0 12px 36px rgba(7, 27, 42, .15);--mx-radius: 16px;--mx-radius-sm: 8px;--mx-radius-lg: 24px;--van-primary-color: var(--mx-brand);--van-text-color: var(--mx-ink);--van-text-color-2: var(--mx-ink-soft);--van-text-color-3: var(--mx-ink-muted);--van-background: var(--mx-bg);--van-background-2: var(--mx-card);--van-border-color: var(--mx-border);--van-card-background: var(--mx-card);--van-nav-bar-background: var(--mx-card);--van-nav-bar-title-font-size: 17px;--van-nav-bar-arrow-size: 20px;--van-cell-background: var(--mx-card);--van-button-primary-background: var(--mx-brand);--van-button-primary-border-color: var(--mx-brand);--van-button-border-radius: 12px;--van-tab-active-text-color: var(--mx-brand);--van-tabs-bottom-bar-color: var(--mx-brand)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,Helvetica,Arial,sans-serif;color:var(--mx-ink);background:linear-gradient(rgba(14,165,183,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(14,165,183,.05) 1px,transparent 1px),linear-gradient(145deg,#eef8fa,#e5f0f5);background-size:26px 26px,26px 26px,auto;background-attachment:fixed;font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#app{min-height:100vh;width:min(100%,430px);margin:0 auto;background:var(--mx-bg);box-shadow:0 0 40px #071b2a1f}a{color:var(--mx-brand);text-decoration:none}.page{min-height:100vh;padding-bottom:env(safe-area-inset-bottom)}.page.has-tabbar{padding-bottom:calc(58px + env(safe-area-inset-bottom))}.page-scroll{width:100%;margin:0 auto;padding:12px 16px 24px}.mx-card{background:var(--mx-card);border-radius:var(--mx-radius);box-shadow:var(--mx-shadow);border:1px solid rgba(14,165,183,.12);overflow:hidden;transition:transform .15s ease,box-shadow .2s ease}.mx-card:active{transform:scale(.99)}.mx-card-pad{padding:16px}.mx-hero{background:linear-gradient(rgba(66,215,232,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(66,215,232,.08) 1px,transparent 1px),linear-gradient(135deg,#071b2a,#0b3a4a 65%,#0e7d8d);background-size:24px 24px,24px 24px,auto;color:#fff;padding:24px 20px 28px;border-radius:0 0 24px 24px}.mx-hero-title{font-size:22px;font-weight:700;margin:0 0 4px}.mx-hero-sub{font-size:13px;opacity:.9;margin:0}.mx-tag{display:inline-flex;align-items:center;padding:2px 10px;border-radius:20px;font-size:12px;font-weight:500;line-height:1.6}.mx-tag-brand{background:var(--mx-brand-soft);color:var(--mx-brand-dark)}.mx-tag-sun{background:var(--mx-sun-soft);color:#b45309}.mx-tag-mint{background:var(--mx-mint-soft);color:#047857}.mx-tag-coral{background:var(--mx-coral-soft);color:#be123c}.mx-tag-gray{background:#f1f5f9;color:var(--mx-ink-soft)}.mx-status-pending,.mx-status-uploading{background:var(--mx-sun-soft);color:#b45309}.mx-status-ready{background:var(--mx-mint-soft);color:#047857}.mx-status-failed,.mx-status-expired{background:var(--mx-coral-soft);color:#be123c}.mx-status-disabled{background:#eef3f6;color:var(--mx-ink-soft)}.text-muted{color:var(--mx-ink-muted)}.text-soft{color:var(--mx-ink-soft)}.text-brand{color:var(--mx-brand)}.text-mint{color:var(--mx-mint)}.text-coral{color:var(--mx-coral)}.text-sun{color:var(--mx-sun)}.font-bold{font-weight:600}.font-lg{font-size:17px}.font-sm{font-size:13px}.font-xs{font-size:12px}.mx-score{display:flex;align-items:center;justify-content:center;width:72px;height:72px;border-radius:50%;background:conic-gradient(var(--mx-brand) calc(var(--p) * 1%),#e2e8f0 0);position:relative}.mx-score:before{content:"";position:absolute;top:6px;right:6px;bottom:6px;left:6px;border-radius:50%;background:var(--mx-card)}.mx-score-num{position:relative;z-index:1;font-size:24px;font-weight:700;color:var(--mx-brand)}.mx-timeline-item{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid var(--mx-border)}.mx-timeline-item:last-child{border-bottom:none}.mx-timeline-dot{flex-shrink:0;width:10px;height:10px;border-radius:50%;margin-top:5px;background:var(--mx-brand)}.mx-timeline-dot.ai{background:var(--mx-sun)}.mx-bubble{max-width:80%;padding:10px 14px;border-radius:14px;font-size:14px;line-height:1.55;word-break:break-word}.mx-bubble-student{align-self:flex-end;background:var(--mx-brand);color:#fff;border-bottom-right-radius:4px}.mx-bubble-ai{align-self:flex-start;background:#f1f5f9;color:var(--mx-ink);border-bottom-left-radius:4px}.mx-empty{padding:60px 24px;text-align:center;color:var(--mx-ink-muted)}.mx-skeleton-card{background:var(--mx-card);border-radius:var(--mx-radius);padding:16px;margin-bottom:12px;box-shadow:var(--mx-shadow)}.mx-hover-lift{transition:transform .2s cubic-bezier(.25,.46,.45,.94),box-shadow .2s cubic-bezier(.25,.46,.45,.94);will-change:transform}.mx-hover-lift:hover{transform:translateY(-2px);box-shadow:var(--mx-shadow-lg)}.mx-press-scale{transition:transform .12s ease}.mx-press-scale:active{transform:scale(.97)}.mx-tap-feedback{transition:transform .15s ease,box-shadow .2s ease}.mx-tap-feedback:active{transform:scale(.98);box-shadow:var(--mx-shadow)}.mx-fade-in-up{animation:mx-fade-in-up .4s cubic-bezier(.25,.46,.45,.94) both}@keyframes mx-fade-in-up{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.mx-delay-1{animation-delay:.06s}.mx-delay-2{animation-delay:.12s}.mx-delay-3{animation-delay:.18s}.mx-delay-4{animation-delay:.24s}.mx-delay-5{animation-delay:.3s}@media (prefers-reduced-motion: reduce){.mx-hover-lift,.mx-press-scale,.mx-tap-feedback,.mx-fade-in-up{transition:none;animation:none}.mx-hover-lift:hover,.mx-press-scale:active,.mx-tap-feedback:active{transform:none}}:root{--mx-font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;--mx-radius: 12px;--mx-radius-sm: 8px;--mx-radius-lg: 18px;--mx-shadow: 0 10px 28px rgba(7, 27, 42, .09)}body{font-family:var(--mx-font-ui);letter-spacing:0}.page-scroll{padding:16px 18px 28px}.mx-card{box-shadow:var(--mx-shadow)}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--mx-brand-light);outline-offset:2px}.fade-enter-active,.fade-leave-active{transition:opacity .25s ease}.fade-enter-from,.fade-leave-to{opacity:0}.slide-enter-active{transition:all .3s ease}.slide-enter-from{opacity:0;transform:translateY(12px)}.van-nav-bar{background:#f8fcfef0;border-bottom:1px solid rgba(14,165,183,.12);box-shadow:0 4px 14px #071b2a12}.van-nav-bar__title{font-weight:600}.van-tabs__nav{background:transparent}.van-tab{font-size:14px}.van-cell{border-radius:var(--mx-radius-sm)}::-webkit-scrollbar{width:0;height:0}