:root{--bg:#f7f5f0;--paper:#fff;--ink:#191919;--muted:#666;--line:#ded8ca;--accent:#745229;--accent2:#efe6d6;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;line-height:1.55}a{color:inherit}.wrap{width:min(var(--max),calc(100% - 32px));margin:auto}.topbar{position:sticky;top:0;z-index:20;background:rgba(247,245,240,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:64px}.brand{font-weight:800;letter-spacing:.08em;text-decoration:none}.nav{display:flex;gap:14px;align-items:center;flex-wrap:wrap}.nav a{text-decoration:none;font-size:.95rem}.hero{padding:76px 0 46px;text-align:center}.eyebrow{font-weight:700;letter-spacing:.14em;text-transform:uppercase;font-size:.78rem;color:var(--accent)}h1{font-size:clamp(2.8rem,7vw,6rem);line-height:.95;margin:.18em 0}.tagline{font-size:clamp(1.1rem,2.5vw,1.45rem);max-width:760px;margin:20px auto;color:#3e3e3e}.stats{font-weight:700;margin:22px 0}.actions{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:26px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 17px;border-radius:999px;border:1px solid var(--ink);text-decoration:none;font-weight:700;background:var(--paper);cursor:pointer}.btn.primary{background:var(--ink);color:#fff}.btn.soft{background:var(--accent2);border-color:var(--line)}section{padding:54px 0}.section-head{max-width:760px;margin:0 auto 28px;text-align:center}.section-head h2{font-size:clamp(2rem,4vw,3.2rem);margin:0 0 10px}.section-head p{color:var(--muted);font-size:1.05rem}.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.topic{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:22px}.topic h3{margin-top:0}.filters{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin:20px 0 30px}.filter-btn{border:1px solid var(--line);background:#fff;border-radius:999px;padding:9px 14px;font-weight:700;cursor:pointer}.filter-btn.active{background:var(--ink);color:#fff;border-color:var(--ink)}.book-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.book-card{background:var(--paper);border:1px solid var(--line);border-radius:20px;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 8px 28px rgba(0,0,0,.035)}.cover-wrap{background:#eee8dc;display:flex;justify-content:center;padding:22px;min-height:330px}.cover-wrap img{height:290px;max-width:100%;object-fit:contain;box-shadow:0 10px 25px rgba(0,0,0,.12)}.book-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}.badges{display:flex;gap:7px;flex-wrap:wrap}.badge{font-size:.75rem;border-radius:999px;background:var(--accent2);padding:4px 9px}.book-body h3{font-size:1.45rem;margin:0}.book-body p{margin:0;color:#505050}.book-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto;padding-top:10px}.book-actions .btn{flex:1;min-width:110px}.split{display:grid;grid-template-columns:1fr 1fr;gap:24px}.panel{background:var(--paper);border:1px solid var(--line);border-radius:20px;padding:30px}.panel h2{margin-top:0}.quote{font-size:1.55rem;font-weight:800;line-height:1.25;margin:24px 0}.bio p,.why p{font-size:1.03rem}.accent-box{background:var(--accent2);border-radius:16px;padding:20px;margin:20px 0}.footer{border-top:1px solid var(--line);padding:36px 0 60px;color:var(--muted);font-size:.92rem}.footer .wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.reader-shell{height:calc(100vh - 76px);display:flex;flex-direction:column}.reader-toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 16px;background:var(--paper);border-bottom:1px solid var(--line);flex-wrap:wrap}.reader-toolbar .left,.reader-toolbar .right{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.reader-frame{width:100%;flex:1;border:0;background:#ddd}.notice{max-width:760px;margin:40px auto;background:var(--paper);border:1px solid var(--line);padding:24px;border-radius:16px}.lang-jump{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:14px}.lang-jump a{padding:8px 13px;border:1px solid var(--line);background:#fff;border-radius:999px;text-decoration:none;font-weight:700}@media(max-width:950px){.topic-grid{grid-template-columns:1fr 1fr}.book-grid{grid-template-columns:1fr 1fr}.split{grid-template-columns:1fr}}@media(max-width:620px){.nav a.hide-sm{display:none}.hero{padding-top:48px}.topic-grid,.book-grid{grid-template-columns:1fr}.cover-wrap{min-height:270px}.cover-wrap img{height:240px}.panel{padding:22px}.reader-toolbar{align-items:flex-start}.reader-shell{height:calc(100vh - 100px)}}