:root{--bg:#F8FAFB;--bg-card:#FFFFFF;--bg-sidebar:#0F172A;--text-primary:#0F172A;--text-secondary:#475569;--text-tertiary:#94A3B8;--accent:#3B82F6;--accent-light:#60A5FA;--accent-bg:#EFF6FF;--success:#22C55E;--warning:#F59E0B;--danger:#EF4444;--error:#EF4444;--error-bg:#FEF2F2;--border:#E2E8F0;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:20px;--shadow-sm:0 1px 2px rgba(0,0,0,0.04);--shadow-md:0 4px 12px rgba(0,0,0,0.06);--sidebar-width:260px}*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}body{font-family:-apple-system,BlinkMacSystemFont,'SF Pro Display','Segoe UI',sans-serif;background:var(--bg);color:var(--text-primary);line-height:1.5;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:inherit}button{border:none;background:none;cursor:pointer;font-family:inherit}.btn{height:50px;border:none;border-radius:var(--radius-md);font-size:16px;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:all 0.2s}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-light)}.btn-primary:active{transform:scale(0.98)}.btn-primary:disabled{background:var(--text-tertiary);cursor:not-allowed}.btn-block{width:100%}.btn-loading{width:18px;height:18px;border:2px solid rgba(255,255,255,0.3);border-top-color:#fff;border-radius:50%;animation:spin 0.8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.form-field{display:flex;flex-direction:column;gap:8px}.field-label{font-size:14px;font-weight:500;color:var(--text-secondary)}.field-input{position:relative;display:flex;align-items:center;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);transition:all 0.2s}.field-input:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(13,148,136,0.1)}.field-input.error{border-color:var(--error)}.field-icon{position:absolute;left:14px;color:var(--text-tertiary);font-size:20px;pointer-events:none}.field-input .input{flex:1;height:50px;padding:0 14px 0 46px;border:none;background:none;font-size:15px;color:var(--text-primary);outline:none}.field-input .input::placeholder{color:var(--text-tertiary)}.field-action{padding:0 14px;background:none;border:none;color:var(--text-tertiary);cursor:pointer}.field-action:hover{color:var(--text-secondary)}.field-error{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--error)}.field-error .material-symbols-rounded{font-size:16px}.checkbox-wrap{display:flex;align-items:center;gap:8px;cursor:pointer}.checkbox-input{display:none}.checkbox-box{width:20px;height:20px;border:2px solid var(--border);border-radius:6px;display:flex;align-items:center;justify-content:center;transition:all 0.2s}.checkbox-box .material-symbols-rounded{font-size:14px;color:#fff;opacity:0;transform:scale(0.5);transition:all 0.2s}.checkbox-input:checked+.checkbox-box{background:var(--accent);border-color:var(--accent)}.checkbox-input:checked+.checkbox-box .material-symbols-rounded{opacity:1;transform:scale(1)}.checkbox-text{font-size:14px;color:var(--text-secondary)}.alert{display:flex;align-items:center;gap:10px;padding:14px 16px;border-radius:var(--radius-md);font-size:14px}.alert-error{background:var(--error-bg);color:var(--error);border:1px solid #FECACA}.toast-container{position:fixed;top:24px;left:50%;transform:translateX(-50%);z-index:9999;display:flex;flex-direction:column;gap:12px}.toast{display:flex;align-items:center;gap:10px;padding:14px 24px;background:var(--text-primary);color:#fff;border-radius:var(--radius-md);box-shadow:0 10px 40px rgba(0,0,0,0.2);animation:toastIn 0.3s ease}.toast-success{background:var(--success)}.toast-error{background:var(--error)}.toast-hide{animation:toastOut 0.3s ease forwards}@keyframes toastIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@keyframes toastOut{from{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-10px)}}.navbar{position:sticky;top:0;height:56px;background:var(--bg-card);border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 16px;z-index:100}.navbar-back{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:50%;color:var(--text-primary);cursor:pointer}.navbar-back:hover{background:var(--bg)}.navbar-title{flex:1;text-align:center;font-size:17px;font-weight:600;margin-right:40px}.nav-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,0.95);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(0,0,0,0.05);height:56px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;width:100%}@media (min-width:768px){.nav-header{padding:0 32px}}.nav-back{width:36px;height:36px;border-radius:50%;background:#F1F5F9;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all 0.2s;flex-shrink:0}.nav-back:hover{background:#E2E8F0}.nav-back svg{width:20px;height:20px;color:#334155}.nav-title{flex:1;text-align:center;font-size:17px;font-weight:600;color:#0F172A;white-space:nowrap}.nav-right{width:36px;flex-shrink:0}.main-content{min-height:calc(100vh - 56px - 70px);padding-bottom:70px}.bottom-nav{position:fixed;bottom:0;left:0;right:0;height:70px;background:#fff;border-top:1px solid #F1F5F9;display:flex;align-items:center;justify-content:space-around;padding-bottom:env(safe-area-inset-bottom);z-index:100}.bottom-nav-item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:8px 16px;color:#94A3B8;text-decoration:none;transition:all 0.2s}.bottom-nav-item svg{width:24px;height:24px}.bottom-nav-item span{font-size:11px;font-weight:500}.bottom-nav-item.active{color:var(--accent,#0D9488)}.bottom-nav-item.active svg{stroke:var(--accent,#0D9488)}@media (min-width:768px){.bottom-nav{padding:0 32px}.bottom-nav-item{padding:8px 32px}}