:root{font-family:Inter,PingFang SC,Microsoft YaHei,system-ui,sans-serif;color:#29261f;background:#f4efe6;font-synthesis:none;--paper: #fffdf8;--ink: #29261f;--muted: #766f64;--line: rgba(72, 61, 44, .12);--accent: #845d3c;--accent-soft: #eadcc9;--danger: #a34f46;--shadow: 0 20px 60px rgba(74, 58, 38, .12)}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}button,input{font:inherit}button{cursor:pointer}.app-shell{min-height:100vh;background:radial-gradient(circle at 8% 8%,rgba(210,190,158,.38),transparent 26%),radial-gradient(circle at 92% 4%,rgba(185,201,183,.3),transparent 24%),#f4efe6}.topbar{height:72px;padding:0 5vw;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:#fffdf8c2;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);position:sticky;top:0;z-index:20}.brand{display:flex;align-items:center;gap:12px}.brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;color:#fff;background:#443b30;box-shadow:0 8px 20px #352a1e2e}.brand strong{display:block;font-size:17px;letter-spacing:.08em}.brand small{display:block;color:var(--muted);margin-top:2px}.header-actions{display:flex;align-items:center;gap:10px}.button{border:1px solid transparent;border-radius:12px;padding:10px 16px;background:#443b30;color:#fff;transition:.16s ease;display:inline-flex;align-items:center;justify-content:center;gap:8px}.button:hover{transform:translateY(-1px);box-shadow:0 8px 22px 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small{display:none}.header-actions{gap:6px}.header-actions .compact-action{display:none}.header-actions .button{padding:9px 11px;font-size:12px}.page{width:calc(100vw - 32px);padding-top:32px}.hero{grid-template-columns:1fr}.stat{display:none}.shelf{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 14px}.book-cover{padding:18px 14px}.cover-title{font-size:19px;margin-top:20px}.reader-header{grid-template-columns:1fr auto}.reader-progress{display:none}.reader-main{grid-template-columns:1fr}.sidebar{position:fixed;inset:64px auto 0 0;width:min(88vw,330px);z-index:50;box-shadow:var(--shadow);transform:translate(-105%);transition:transform .18s ease}.reader.sidebar-open .sidebar{transform:translate(0)}.txt-page{width:100%;padding:6vh 24px 18vh}.page-nav{inset-inline:5px}}