:root{--ios-bg: #F2F2F7;--ios-card-bg: #FFFFFF;--ios-blue: #007AFF;--ios-blue-active: #0062cc;--text-primary: #000000;--text-secondary: #8E8E93;--divider-color: #E5E5EA;--shadow: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}@media(prefers-color-scheme:dark){:root{--ios-bg: #000000;--ios-card-bg: #1C1C1E;--text-primary: #FFFFFF;--text-secondary: #8E8E93;--divider-color: #38383A}}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}body{font-family:var(--font-family);background-color:var(--ios-bg);color:var(--text-primary);min-height:100vh;margin:0}#root{min-height:100vh;display:flex;flex-direction:column}h1{font-size:32px;font-weight:800;letter-spacing:-.02em}h2{font-size:24px;font-weight:700;letter-spacing:-.01em}p{font-size:17px;line-height:1.5;color:var(--text-secondary)}.ios-card{background-color:var(--ios-card-bg);border-radius:12px;overflow:hidden;box-shadow:var(--shadow);margin-bottom:20px}.ios-btn{background-color:var(--ios-blue);color:#fff;font-size:17px;font-weight:600;padding:16px;border:none;border-radius:12px;cursor:pointer;width:100%;transition:transform .1s ease,background-color .2s}.ios-btn:active{background-color:var(--ios-blue-active);transform:scale(.98)}.app-layout{display:flex;flex-direction:column;height:100vh;max-width:100%;margin:0 auto}.content-area{flex:1;overflow-y:auto;padding-bottom:80px;-webkit-overflow-scrolling:touch}.tab-bar{position:fixed;bottom:0;left:0;right:0;height:83px;background:#ffffffe6;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-top:1px solid var(--divider-color);display:flex;justify-content:space-around;padding-bottom:20px;padding-top:10px;z-index:1000}@media(min-width:600px){.app-layout{max-width:600px;margin:0 auto;border-left:1px solid var(--divider-color);border-right:1px solid var(--divider-color);background:var(--ios-bg)}.tab-bar{max-width:600px;left:50%;transform:translate(-50%);border-left:1px solid var(--divider-color);border-right:1px solid var(--divider-color)}}.tab-item{background:none;border:none;display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;color:var(--text-secondary);cursor:pointer;trainsition:color .2s}.tab-item.active{color:var(--ios-blue)}.tab-item .icon{font-size:24px;margin-bottom:4px}.tab-item .label{font-size:10px;font-weight:500}