:root{--paper:#f5efe5;--card:#fffaf2;--ink:#252b26;--muted:#7f8179;--line:#e3dacf;--moss:#2f5949;--red:#be4c3b;--yellow:#e8b84f;--blue:#5c7592;--serif:Georgia,'Songti SC','STSong','Noto Serif CJK SC',serif;--sans:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:#dfe5de;color:var(--ink);font-family:var(--sans)}body{background-image:radial-gradient(rgba(48,89,73,.04) 1px,transparent 1px);background-size:7px 7px}.app-shell{position:relative;max-width:520px;min-height:100vh;margin:auto;padding:env(safe-area-inset-top,12px) 18px calc(95px + env(safe-area-inset-bottom));overflow:hidden;background:linear-gradient(160deg,#fbf7ef,#f4ede1 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