:root{--bg:#fbfaf8;--paper:#fff;--ink:#252320;--muted:#7b746c;--line:#e6e1da;--soft:#f2eee8;--brown:#8f765c}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}button,textarea{font:inherit}.container{width:min(1180px,94%);margin:auto}
.site-header{height:70px;position:sticky;top:0;z-index:50;background:rgba(251,250,248,.95);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;gap:11px;align-items:center}.brand-mark{width:36px;height:36px;border:1px solid #bcae9d;display:grid;place-items:center;font-family:Georgia,serif;font-size:11px}.brand-copy strong{display:block;font-family:Georgia,STSong,serif;font-size:16px;font-weight:500}.brand-copy span{font-size:8px;color:#958c82;letter-spacing:1.8px}.nav{display:flex;gap:25px;align-items:center}.nav a{font-size:10px;color:#6d665e}.nav a.active{color:#222}.nav-cta{background:#27231f!important;color:#fff!important;padding:10px 14px;border-radius:999px}.mobile-nav{display:none}
.hero{padding:78px 0 60px}.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:65px;align-items:center}.eyebrow,.section-kicker{font-size:9px;letter-spacing:2.5px;color:#927d66}.hero h1{font-family:Georgia,STSong,serif;font-size:58px;font-weight:500;line-height:1.08;letter-spacing:-1.8px;margin:17px 0 0}.hero p{font-size:12px;line-height:2;color:#786f67;margin-top:20px}.hero-actions{display:flex;gap:9px;margin-top:26px}.btn{border:1px solid var(--line);background:#fff;padding:10px 14px;border-radius:8px;font-size:10px;cursor:pointer;display:inline-flex;justify-content:center}.btn.primary{background:#27231f;color:#fff;border-color:#27231f}
.paper{background:#fff;border:1px solid var(--line);box-shadow:0 28px 70px rgba(70,55,38,.08);padding:35px;min-height:330px;transform:rotate(1deg)}.paper h2{font-family:Georgia,serif;font-size:29px;font-weight:500}.paper p{font-family:Georgia,STSong,serif;font-size:14px;line-height:1.9;color:#625c55}.paper code{background:#f0ece6;padding:3px 6px;border-radius:5px}
.section{padding:90px 0}.section-head{display:grid;grid-template-columns:.6fr 1.4fr;gap:55px;margin-bottom:40px}.section-head h2{font-family:Georgia,STSong,serif;font-size:34px;font-weight:500;margin:0}.section-head p{font-size:10px;line-height:2;color:#776f67}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{border-top:1px solid #d6cec4;padding-top:17px}.card b{font-family:Georgia,serif;font-size:20px;font-weight:500}.card h3{font-size:14px;margin-top:22px}.card p{font-size:10px;line-height:1.9;color:#756d65}
.page-hero{padding:54px 0 36px;border-bottom:1px solid var(--line)}.page-hero h1{font-family:Georgia,STSong,serif;font-size:40px;font-weight:500;margin:10px 0 0}.page-hero p{font-size:11px;line-height:1.9;color:#786f67;max-width:700px}
.tool-wrap{padding:34px 0 82px}.editor{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);background:#fff;box-shadow:0 22px 55px rgba(70,55,38,.06)}.pane{min-width:0}.pane+.pane{border-left:1px solid var(--line)}.bar{height:42px;background:#faf8f4;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 13px;font-size:9px;color:#8b8278}.bar button{border:0;background:none;font-size:9px;color:#6b645d;cursor:pointer}.pane textarea{width:100%;min-height:560px;border:0;outline:0;resize:vertical;padding:22px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;line-height:1.8;background:#fff;color:#2b2926}.preview{padding:28px;min-height:560px;line-height:1.85;font-size:13px;overflow:auto}.preview h1,.preview h2,.preview h3{font-family:Georgia,STSong,serif;font-weight:500}.preview code{background:#f0ece6;padding:2px 5px;border-radius:4px}.preview blockquote{border-left:3px solid #b7a898;padding-left:13px;color:#70685f}.preview ul{padding-left:20px}
.info-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:50px}.info-nav{position:sticky;top:100px;align-self:start;border-left:1px solid var(--line)}.info-nav a{display:block;padding:8px 13px;font-size:10px;color:#7b736b}.prose{background:#fff;border:1px solid var(--line);padding:28px}.prose h2{font-family:Georgia,STSong,serif;font-size:24px;font-weight:500;margin:0 0 12px}.prose h3{font-size:14px;margin:28px 0 9px}.prose p,.prose li{font-size:10px;line-height:2;color:#716a62}.prose ul{padding-left:18px}.info-table{border-top:1px solid var(--line);margin-top:18px}.info-row{display:grid;grid-template-columns:140px 1fr;padding:13px 0;border-bottom:1px solid var(--line);font-size:10px}.info-row span:first-child{color:#8b837a}
.site-footer{border-top:1px solid var(--line);padding:30px 0 42px;color:#8a8278}.footer-inner{display:flex;justify-content:space-between}.footer-title{color:#4f4943;font-size:11px}.footer-copy,.footer-meta{font-size:9px;line-height:1.9}.footer-meta{text-align:right}.notfound{min-height:100vh;display:grid;place-items:center;text-align:center}.code{font-family:Georgia,serif;font-size:100px;color:#ddd6ce}
@media(max-width:850px){.nav{display:none}.mobile-nav{display:block;font-size:10px}.hero-grid,.section-head,.info-layout{grid-template-columns:1fr}.hero h1{font-size:42px}.cards{grid-template-columns:1fr}.editor{grid-template-columns:1fr}.pane+.pane{border-left:0;border-top:1px solid var(--line)}.info-nav{display:none}}