@charset "UTF-8";:root{--s-primary: #2f6bff;--s-primary-deep: #1f54e6;--s-primary-soft: #e8f0ff;--s-primary-soft-2: #f0f5ff;--s-brand-blue: #2b66f0;--s-purple: #8b7cf0;--s-purple-soft: #efeaff;--s-green: #22b98a;--s-green-soft: #e3f8f0;--s-orange: #ff9a3d;--s-red: #f5564a;--s-bg: #eef4ff;--s-surface: #ffffff;--s-surface-2: #f7faff;--s-text: #1f2a44;--s-text-sub: #5a6a85;--s-text-weak: #95a1b8;--s-line: #eef1f7;--s-radius-lg: 22px;--s-radius: 18px;--s-radius-sm: 12px;--s-shadow-card: 0 8px 24px rgba(47, 107, 255, .08);--s-shadow-float: 0 12px 32px rgba(47, 107, 255, .18);--s-safe-top: env(safe-area-inset-top, 0px);--s-safe-bottom: env(safe-area-inset-bottom, 0px);--s-tabbar-h: 58px;--s-font: -apple-system, BlinkMacSystemFont, "PingFang SC", "SF Pro SC", "SF Pro Display", "Helvetica Neue", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;padding:0;height:100%}body{font-family:var(--s-font);color:var(--s-text);background:var(--s-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;font-feature-settings:"kern" 1;letter-spacing:.1px}#student-app{height:100%}button{font-family:inherit;cursor:pointer;border:none;background:none;padding:0;color:inherit}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}ul,li{margin:0;padding:0;list-style:none}input,textarea{font-family:inherit;outline:none;border:none;background:none}::-webkit-scrollbar{width:0;height:0}.toast{position:fixed!important;top:calc(var(--s-safe-top) + 14px)!important;bottom:auto!important;left:50%!important;transform:translate(-50%)!important;max-width:min(88%,420px)!important;padding:12px 20px!important;font-size:13.5px!important;font-weight:500!important;line-height:1.5!important;letter-spacing:.2px!important;color:#fff!important;background:linear-gradient(135deg,#39569ef2,#1f2a44f2)!important;border:1px solid rgba(255,255,255,.14)!important;border-radius:15px!important;box-shadow:0 14px 34px #141e464d,inset 0 1px #ffffff24!important;-webkit-backdrop-filter:blur(16px)!important;backdrop-filter:blur(16px)!important;z-index:4000!important}.toast-fade-enter-from,.toast-fade-leave-to{opacity:0!important;transform:translate(-50%) translateY(-14px)!important}