:root{--color-primary: #2E5090;--color-primary-light: #4A6FB5;--color-primary-dark: #1D3A6E;--color-secondary: #6C8FC7;--color-accent: #FF7B54;--color-accent-light: #FF9F7F;--color-success: #4CAF50;--color-warning: #FFC107;--color-danger: #F44336;--color-bg: #F5F7FA;--color-bg-card: #FFFFFF;--color-bg-input: #F0F2F5;--color-text-primary: #1A1A2E;--color-text-secondary: #6B7280;--color-text-hint: #9CA3AF;--color-border: #E5E7EB;--color-border-light: #F0F0F0;--color-shadow: rgba(46, 80, 144, .08);--color-overlay: rgba(0, 0, 0, .45);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--radius-full: 9999px;--shadow-sm: 0 1px 3px var(--color-shadow);--shadow-md: 0 4px 12px var(--color-shadow);--shadow-lg: 0 8px 24px var(--color-shadow);--tab-bar-height: 64px;--header-height: 56px;--safe-bottom: env(safe-area-inset-bottom, 0px);--font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-text-size-adjust:100%}body{font-family:var(--font-family);color:var(--color-text-primary);background-color:var(--color-bg);line-height:1.6;min-height:100vh;overflow-x:hidden}#root{min-height:100vh;display:flex;flex-direction:column}a{color:var(--color-primary);text-decoration:none}img{max-width:100%;display:block}ul,ol{list-style:none}input,button,textarea,select{font-family:inherit;font-size:inherit}.app-shell{max-width:480px;width:100%;margin:0 auto;min-height:100vh;display:flex;flex-direction:column;background-color:var(--color-bg);position:relative}.page{flex:1;padding:16px;padding-bottom:calc(var(--tab-bar-height) + var(--safe-bottom) + 16px);overflow-y:auto;-webkit-overflow-scrolling:touch}.page-header{padding:20px 16px 12px;background:var(--color-bg-card);border-bottom:1px solid var(--color-border-light)}.page-title{font-size:22px;font-weight:700;color:var(--color-text-primary);line-height:1.3}.page-subtitle{font-size:14px;color:var(--color-text-secondary);margin-top:4px}.header-bar{height:var(--header-height);display:flex;align-items:center;justify-content:space-between;padding:0 16px;background:var(--color-bg-card);border-bottom:1px solid var(--color-border-light);position:sticky;top:0;z-index:100}.header-bar__title{font-size:18px;font-weight:600;color:var(--color-text-primary)}.header-bar__action{display:flex;align-items:center;gap:8px}.tab-bar{position:fixed;bottom:0;left:50%;transform:translate(-50%);max-width:480px;width:100%;height:calc(var(--tab-bar-height) + var(--safe-bottom));padding-bottom:var(--safe-bottom);background:var(--color-bg-card);border-top:1px solid var(--color-border-light);display:flex;align-items:center;justify-content:space-around;z-index:1000;box-shadow:0 -2px 10px #0000000a}.tab-bar__item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;padding:6px 0;flex:1;color:var(--color-text-hint);font-size:10px;font-weight:500;cursor:pointer;transition:color .2s ease;text-decoration:none;-webkit-tap-highlight-color:transparent}.tab-bar__item--active{color:var(--color-primary)}.tab-bar__item:active{opacity:.7}.tab-bar__icon{font-size:24px;line-height:1;height:28px;display:flex;align-items:center;justify-content:center}.tab-bar__label{white-space:nowrap}.card{background:var(--color-bg-card);border-radius:var(--radius-md);padding:16px;box-shadow:var(--shadow-sm);transition:box-shadow .2s ease,transform .15s ease}.card:active{transform:scale(.98)}.card--elevated{box-shadow:var(--shadow-md)}.card+.card{margin-top:12px}.card__header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.card__title{font-size:16px;font-weight:600;color:var(--color-text-primary)}.card__body{color:var(--color-text-secondary);font-size:14px;line-height:1.5}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:12px 24px;font-size:15px;font-weight:600;border:none;border-radius:var(--radius-lg);cursor:pointer;transition:all .2s ease;-webkit-tap-highlight-color:transparent;outline:none;white-space:nowrap;-webkit-user-select:none;user-select:none}.btn:active{transform:scale(.96)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn--primary{background:linear-gradient(135deg,var(--color-primary),var(--color-primary-light));color:#fff;box-shadow:0 4px 12px #2e50904d}.btn--primary:active:not(:disabled){box-shadow:0 2px 6px #2e50904d}.btn--secondary{background:var(--color-bg-input);color:var(--color-text-primary)}.btn--accent{background:linear-gradient(135deg,var(--color-accent),var(--color-accent-light));color:#fff;box-shadow:0 4px 12px #ff7b544d}.btn--outline{background:transparent;color:var(--color-primary);border:1.5px solid var(--color-primary)}.btn--ghost{background:transparent;color:var(--color-text-secondary);padding:8px 12px}.btn--danger{background:var(--color-danger);color:#fff}.btn--block{width:100%}.btn--sm{padding:8px 16px;font-size:13px;border-radius:var(--radius-sm)}.btn--lg{padding:16px 32px;font-size:17px;border-radius:var(--radius-xl)}.btn--round{border-radius:var(--radius-full)}.input-group{margin-bottom:16px}.input-group__label{display:block;font-size:14px;font-weight:500;color:var(--color-text-primary);margin-bottom:6px}.input-group__hint{font-size:12px;color:var(--color-text-hint);margin-top:4px}.input{width:100%;padding:12px 16px;font-size:15px;color:var(--color-text-primary);background:var(--color-bg-input);border:1.5px solid transparent;border-radius:var(--radius-md);outline:none;transition:border-color .2s ease,background .2s ease;-webkit-appearance:none}.input::placeholder{color:var(--color-text-hint)}.input:focus{border-color:var(--color-primary);background:var(--color-bg-card)}.input--error{border-color:var(--color-danger)}.input-row{display:flex;gap:10px;align-items:center}.input-row .input{flex:1}textarea.input{min-height:100px;resize:vertical;line-height:1.5}.tag{display:inline-flex;align-items:center;padding:4px 12px;font-size:12px;font-weight:500;border-radius:var(--radius-full);background:var(--color-bg-input);color:var(--color-text-secondary);white-space:nowrap}.tag--primary{background:#2e50901a;color:var(--color-primary)}.tag--accent{background:#ff7b541a;color:var(--color-accent)}.tag--success{background:#4caf501a;color:var(--color-success)}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.avatar{width:40px;height:40px;border-radius:50%;object-fit:cover;background:var(--color-bg-input);display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--color-text-hint);overflow:hidden;flex-shrink:0}.avatar--sm{width:32px;height:32px;font-size:14px}.avatar--lg{width:56px;height:56px;font-size:24px}.avatar--xl{width:72px;height:72px;font-size:32px}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px 24px;text-align:center}.empty-state__icon{font-size:64px;margin-bottom:16px;opacity:.6}.empty-state__title{font-size:17px;font-weight:600;color:var(--color-text-primary);margin-bottom:8px}.empty-state__desc{font-size:14px;color:var(--color-text-hint);max-width:260px;line-height:1.5}.spinner{width:32px;height:32px;border:3px solid var(--color-border-light);border-top-color:var(--color-primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:50vh;gap:16px;color:var(--color-text-hint);font-size:14px}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--color-overlay);z-index:2000;display:flex;align-items:flex-end;justify-content:center;animation:fadeIn .2s ease}.modal{max-width:480px;width:100%;background:var(--color-bg-card);border-radius:var(--radius-xl) var(--radius-xl) 0 0;padding:24px 16px calc(16px + var(--safe-bottom));animation:slideUp .3s ease}.modal__handle{width:36px;height:4px;background:var(--color-border);border-radius:2px;margin:0 auto 16px}.modal__title{font-size:18px;font-weight:700;color:var(--color-text-primary);margin-bottom:16px}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.section{margin-bottom:20px}.section__header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.section__title{font-size:17px;font-weight:700;color:var(--color-text-primary)}.section__action{font-size:13px;color:var(--color-primary);font-weight:500;cursor:pointer}.divider{height:1px;background:var(--color-border-light);margin:16px 0}.flex{display:flex}.flex-col{flex-direction:column}.flex-center{align-items:center;justify-content:center}.flex-between{align-items:center;justify-content:space-between}.flex-wrap{flex-wrap:wrap}.gap-4{gap:4px}.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}.mt-8{margin-top:8px}.mt-12{margin-top:12px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mb-8{margin-bottom:8px}.mb-12{margin-bottom:12px}.mb-16{margin-bottom:16px}.p-16{padding:16px}.text-center{text-align:center}.text-sm{font-size:13px}.text-hint{color:var(--color-text-hint)}.text-danger{color:var(--color-danger)}.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}::-webkit-scrollbar{width:0;height:0}::selection{background:#2e509033;color:var(--color-text-primary)}