:root{--bg: #f6f8f9;--surface: #ffffff;--line: #dfe6e8;--line-strong: #cbd8dc;--text: #162328;--muted: #73828a;--teal: #0e9a96;--teal-dark: #087d7a;--teal-soft: #e9f8f7;--amber: #f39b35;--red: #df5a45;--blue: #58aeea;--purple: #9b74d9;--green: #4fbf6d;font-family:Microsoft YaHei,PingFang SC,Segoe UI,Arial,sans-serif;color:var(--text)}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at top,#ffffff 0,var(--bg) 42%,#eef3f4 100%)}button,input,select{font:inherit}button{cursor:pointer}.page{min-height:100vh;display:flex;justify-content:center;padding:24px 12px}.phone-frame{width:min(100%,430px);min-height:calc(100vh - 48px);background:var(--surface);border:1px solid var(--line-strong);border-radius:8px;box-shadow:0 22px 60px #2c414a1f;overflow:hidden;position:relative}.app-header{height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid 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