:root{font-family:Microsoft YaHei,PingFang SC,Segoe UI,sans-serif;color:#d7e6e3;background:#071116}*{box-sizing:border-box}body.reader-page{margin:0;min-height:100vh;background:radial-gradient(circle at 18% 0%,rgba(43,212,189,.13),transparent 34%),linear-gradient(180deg,#071116,#0a141b 52%,#081018)}.reader-topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:64px;padding:12px clamp(18px,5vw,72px);border-bottom:1px solid rgba(129,230,217,.18);background:#071116e0;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.reader-back,.reader-download{display:inline-flex;align-items:center;min-height:38px;padding:0 16px;border:1px solid rgba(129,230,217,.38);border-radius:6px;color:#99f6e4;font-size:14px;font-weight:700;text-decoration:none;background:#0f766e2e}.reader-topbar-right{display:flex;align-items:center;gap:12px;min-width:0}#reader-file{overflow:hidden;color:#8ea4aa;font-size:13px;text-overflow:ellipsis;white-space:nowrap}.reader-shell{width:min(980px,calc(100vw - 28px));margin:32px auto 72px}.reader-content{padding:clamp(26px,5vw,58px);border:1px solid rgba(129,230,217,.2);border-radius:8px;background:#09141bf0;box-shadow:0 24px 80px #00000052}.reader-content h1,.reader-content h2,.reader-content h3,.reader-content h4{margin:1.3em 0 .55em;color:#f0fdfa;line-height:1.22}.reader-content h1{margin-top:0;padding-bottom:18px;border-bottom:2px solid rgba(129,230,217,.22);font-size:clamp(30px,5vw,44px)}.reader-content h2{font-size:clamp(23px,3vw,30px)}.reader-content h3{font-size:21px}.reader-content p,.reader-content li{color:#c6d6d5;font-size:17px;line-height:1.85}.reader-content ul{margin:12px 0 22px;padding-left:1.35em}.reader-content strong{color:#fff}.reader-content code{padding:2px 6px;border-radius:5px;color:#99f6e4;background:#14b8a629}.reader-content pre{overflow-x:auto;padding:18px;border:1px solid rgba(129,230,217,.18);border-radius:8px;color:#dbeafe;background:#050b12}.reader-content pre code{padding:0;color:inherit;background:transparent}.reader-content .numbered{display:grid;grid-template-columns:38px minmax(0,1fr);gap:10px;align-items:start}.reader-content .numbered span{display:inline-flex;align-items:center;justify-content:center;min-width:30px;height:30px;border-radius:999px;color:#fff;font-size:13px;font-weight:800;background:#0f766e}@media(max-width:720px){.reader-topbar{align-items:flex-start;flex-direction:column}.reader-topbar-right{justify-content:space-between;width:100%}.reader-content{padding:22px}}