:root{--primary: #002FA7;--primary-light: #e0e7f7;--primary-dark: #001d6b;--accent: #FC8416;--accent-light: #fff3e6;--success: #52c41a;--warning: #faad14;--danger: #ff4d4f;--text: #1a1a2e;--text-secondary: #6b7280;--text-light: #9ca3af;--bg: #f5f7fb;--bg-white: #ffffff;--border: #e5e7eb;--radius: 12px;--radius-sm: 8px;--shadow: 0 2px 12px rgba(0, 0, 0, .06);--shadow-lg: 0 8px 30px rgba(0, 0, 0, .08)}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:15px;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}#app{min-height:100vh}a{color:var(--primary);text-decoration:none}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 24px;border:none;border-radius:var(--radius-sm);font-size:15px;font-weight:600;cursor:pointer;transition:all .2s;width:100%}.btn:active{transform:scale(.98)}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-primary:disabled{background:#a0c4ff;cursor:not-allowed}.btn-outline{background:var(--bg-white);color:var(--primary);border:1.5px solid var(--primary)}.btn-ghost{background:transparent;color:var(--primary)}.btn-sm{padding:8px 16px;font-size:14px;width:auto}.input-group{margin-bottom:16px}.input-label{display:block;margin-bottom:6px;font-size:14px;font-weight:500;color:var(--text)}.input-field{width:100%;padding:12px 14px;font-size:15px;border:1.5px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-white);color:var(--text);outline:none;transition:border-color .2s}.input-field:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}.input-field::placeholder{color:var(--text-light)}.input-row{display:flex;gap:10px}.input-row .input-group{flex:1}.page{min-height:100vh;display:flex;flex-direction:column}.page-body{flex:1;padding:20px 16px;max-width:480px;margin:0 auto;width:100%}.navbar{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;background:var(--bg-white);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}.navbar-brand{font-size:18px;font-weight:700;color:var(--primary)}.navbar-actions{display:flex;gap:12px;align-items:center}.navbar-back{display:flex;align-items:center;gap:8px;color:var(--text-secondary);cursor:pointer;font-size:15px}.navbar-back:active{opacity:.7}.toast{position:fixed;top:20px;left:50%;transform:translate(-50%);padding:10px 20px;border-radius:var(--radius-sm);color:#fff;font-size:14px;z-index:9999;animation:toast-in .3s ease}.toast-error{background:var(--danger)}.toast-success{background:var(--success)}.toast-warning{background:var(--warning);color:var(--text)}@keyframes toast-in{0%{opacity:0;transform:translate(-50%) translateY(-10px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.card{background:var(--bg-white);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.tabs{display:flex;background:var(--bg);border-radius:var(--radius-sm);padding:3px;margin-bottom:24px}.tab{flex:1;text-align:center;padding:10px;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;color:var(--text-secondary);transition:all .2s}.tab.active{background:var(--bg-white);color:var(--primary);box-shadow:0 1px 3px #0000000f}.captcha-btn{white-space:nowrap;padding:12px 14px;border:1.5px solid var(--primary);border-radius:var(--radius-sm);background:var(--bg-white);color:var(--primary);font-size:13px;font-weight:500;cursor:pointer;transition:all .2s}.captcha-btn:disabled{border-color:var(--border);color:var(--text-light);cursor:not-allowed}.text-link{color:var(--primary);font-size:14px;cursor:pointer}.text-link:active{opacity:.7}.page-title{font-size:24px;font-weight:700;margin-bottom:8px;color:var(--text)}.page-subtitle{font-size:14px;color:var(--text-secondary);margin-bottom:24px}.divider{display:flex;align-items:center;margin:20px 0;color:var(--text-light);font-size:13px}.divider:before,.divider:after{content:"";flex:1;height:1px;background:var(--border)}.divider span{padding:0 14px}.form-footer{text-align:center;margin-top:20px;font-size:14px;color:var(--text-secondary)}