:root{--bg-primary: #1a1a2e;--bg-secondary: #16213e;--bg-card: #0f3460;--bg-input: #1a1a3e;--text-primary: #e0e0e0;--text-secondary: #8892b0;--text-muted: #5a6688;--accent: #4fc3f7;--green: #26a69a;--red: #ef5350;--green-bg: rgba(38, 166, 154, .15);--red-bg: rgba(239, 83, 80, .15);--border: #2a2a4a;--tab-bg: #252545;--header-bg: #12122a}[data-theme=light]{--bg-primary: #f5f5f8;--bg-secondary: #ffffff;--bg-card: #ffffff;--bg-input: #eef0f4;--text-primary: #1a1a2e;--text-secondary: #555e70;--text-muted: #8892a6;--accent: #1a73e8;--green: #0d9e6e;--red: #e53935;--green-bg: rgba(13, 158, 110, .1);--red-bg: rgba(229, 57, 53, .1);--border: #dde0e6;--tab-bg: #e8eaef;--header-bg: #ffffff}*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{height:100%;height:100dvh;width:100%;overflow:hidden;overscroll-behavior:none}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:var(--bg-primary);color:var(--text-primary);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased;-webkit-overflow-scrolling:touch;touch-action:manipulation;user-select:none;-webkit-user-select:none}input,select,textarea,button{font-family:inherit;font-size:inherit}button{cursor:pointer;border:none;outline:none}a{text-decoration:none;color:inherit}::-webkit-scrollbar{width:4px;height:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}.app-layout{display:flex;flex-direction:column;height:100%;height:100dvh;max-width:500px;margin:0 auto;background:var(--bg-primary);position:relative;padding-top:env(safe-area-inset-top,0)}@media(max-width:500px){.app-layout{max-width:100%}}.app-content{flex:1;overflow-y:auto;overflow-x:hidden}.tab-bar{display:flex;background:var(--header-bg);border-top:1px solid var(--border);padding:4px 0;padding-bottom:max(env(safe-area-inset-bottom,4px),4px);flex-shrink:0}.tab-item{flex:1;display:flex;flex-direction:column;align-items:center;padding:6px 0;color:var(--text-muted);background:none;font-size:10px;gap:2px;transition:color .2s}.tab-item.active{color:var(--accent)}.tab-item svg{width:22px;height:22px}.page-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--header-bg);border-bottom:1px solid var(--border)}.page-header h1{font-size:18px;font-weight:600}.price-up{color:var(--green)}.price-down{color:var(--red)}.btn{padding:10px 20px;border-radius:6px;font-weight:600;font-size:14px;transition:opacity .2s}.btn:active{opacity:.8}.btn-buy{background:var(--green);color:#fff}.btn-sell{background:var(--red);color:#fff}.btn-primary{background:var(--accent);color:#fff}:root .btn-primary{color:#1a1a2e}[data-theme=light] .btn-primary{color:#fff}.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text-primary)}.btn-block{display:block;width:100%}.form-group{margin-bottom:16px}.form-group label{display:block;margin-bottom:6px;color:var(--text-secondary);font-size:13px}.form-input{width:100%;padding:10px 12px;background:var(--bg-input);border:1px solid var(--border);border-radius:6px;color:var(--text-primary);outline:none;transition:border-color .2s}.form-input:focus{border-color:var(--accent)}.card{background:var(--bg-secondary);border-radius:8px;padding:16px;margin-bottom:12px}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px 24px;color:var(--text-muted)}.empty-state svg{width:48px;height:48px;margin-bottom:12px;opacity:.5}