:root{--ink:#24332e;--muted:#6d7b76;--paper:#f7f3eb;--card:#fffdf8;--green:#365f52;--line:#ddd6ca;--gold:#b7864d;--danger:#9a4747}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Serif SC","Songti SC",serif;line-height:1.75}.topbar{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;align-items:center;padding:14px 18px;background:rgba(247,243,235,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.brand{display:flex;gap:10px;align-items:center;color:inherit;text-decoration:none}.brand b{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--green);color:#fff}.brand span{font-weight:700;letter-spacing:.08em}.brand small{display:block;color:var(--muted);font-size:10px;font-weight:400}main{max-width:720px;margin:auto;padding:28px 18px 110px}.panel,.chapter,.capsule{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:24px;margin-bottom:18px;box-shadow:0 12px 30px rgba(45,57,51,.06)}h1{font-size:30px;line-height:1.3;margin:8px 0 12px}h2{font-size:23px;line-height:1.45}p{white-space:pre-line}.eyebrow{color:var(--gold);letter-spacing:.16em;font-size:12px;font-weight:700}.muted{color:var(--muted);font-size:14px}.field{display:block;margin:18px 0}.field span{display:block;font-size:13px;margin-bottom:7px;color:var(--muted)}input{width:100%;padding:14px 15px;border:1px solid var(--line);border-radius:12px;background:#fff;font-size:16px;color:var(--ink)}button,.button{border:0;border-radius:999px;padding:13px 20px;font-size:15px;cursor:pointer;text-decoration:none;display:inline-flex;justify-content:center;align-items:center}.primary{background:var(--green);color:#fff}.secondary{background:#ece6dc;color:var(--ink)}.wide{width:100%}.text-button{background:none;color:var(--green);padding:8px}.actions{display:flex;gap:10px;flex-wrap:wrap}.cards{display:grid;gap:14px}.scene{display:block;color:inherit;text-decoration:none;padding:20px;border-radius:18px;background:var(--card);border:1px solid var(--line)}.scene strong{font-size:20px}.chapter-body{text-align:justify;text-justify:inter-ideograph}.example{margin:22px 0;padding:18px;border-left:3px solid var(--gold);background:#f3ede3}.watermark-text{position:fixed;inset:0;pointer-events:none;z-index:50;opacity:.055;overflow:hidden;display:grid;grid-template-columns:repeat(2,1fr);transform:rotate(-22deg);gap:70px;font:12px sans-serif}.watermark-text span{white-space:nowrap}.bottom-nav{position:fixed;bottom:0;left:0;right:0;z-index:30;display:flex;justify-content:center;gap:50px;padding:12px max(18px,env(safe-area-inset-right)) calc(12px + env(safe-area-inset-bottom));background:#fffdf9;border-top:1px solid var(--line)}.bottom-nav a{color:var(--muted);text-decoration:none;font-size:13px}.status{padding:12px 15px;border-radius:12px;background:#eef2ef;color:var(--green)}.status.warn{background:#f7eee2;color:#805a34}.device{display:flex;justify-content:space-between;align-items:center;padding:14px 0;border-bottom:1px solid var(--line)}#toast{display:none;position:fixed;bottom:90px;left:50%;transform:translateX(-50%);z-index:80;background:#26332f;color:#fff;padding:10px 16px;border-radius:12px;font-size:13px}.loading{text-align:center;color:var(--muted);padding-top:25vh}@media(min-width:700px){.cards{grid-template-columns:1fr 1fr}.bottom-nav{left:50%;right:auto;width:520px;transform:translateX(-50%);border:1px solid var(--line);border-bottom:0;border-radius:18px 18px 0 0}}

.topbar{min-height:96px;padding:8px 18px;background:var(--paper);backdrop-filter:none}.brand{min-width:0}.brand img{display:block;width:clamp(230px,64vw,320px);height:auto}.topbar .text-button{flex:0 0 auto;font-size:16px}@media(max-width:390px){.topbar{padding-left:12px;padding-right:12px}.brand img{width:min(68vw,260px)}}