:root{--paper:#fdf8ee;--ink:#3b3530;--soft:#7a7168;--card:#ffffff;--line:#e8dfd0;--red:#e4573d;--font-fun:"ZCOOL KuaiLe","Noto Sans SC",sans-serif;--font-body:"Noto Sans SC",system-ui,sans-serif}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--paper);color:var(--ink);font-family:var(--font-body);line-height:1.6}a{color:inherit;text-decoration:none}.wrap{max-width:1060px;margin:0 auto;padding:0 20px 80px}.hero{text-align:center;padding:56px 16px 30px}.hero h1{font-family:var(--font-fun);font-size:clamp(2.4rem,7vw,4rem);font-weight:400;margin:0 0 4px;letter-spacing:.08em}.hero .sub{color:var(--soft);font-size:1.05rem;margin:0 auto 10px;max-width:560px}.hero .tagline{font-family:var(--font-fun);font-size:1.3rem;color:var(--red);margin:0}.level-section{margin-top:44px}.level-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;border-bottom:3px solid var(--level,var(--red));padding-bottom:8px;margin-bottom:20px}.level-badge{font-family:var(--font-fun);font-size:1.5rem;color:#fff;background:var(--level,var(--red));border-radius:12px;padding:2px 14px}.level-head .blurb,.level-head .en{color:var(--soft);font-size:.95rem}.level-head .blurb{margin-left:auto}.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));grid-gap:18px;gap:18px}.book-card{background:var(--card);border:2.5px solid var(--ink);border-radius:16px;overflow:hidden;box-shadow:4px 4px 0 var(--level,var(--red));transition:transform .12s ease,box-shadow .12s ease;display:flex;flex-direction:column}.book-card:hover{transform:translate(-2px,-2px);box-shadow:7px 7px 0 var(--level,var(--red))}.book-card .scene{display:block;width:100%;height:auto;border-bottom:2.5px solid var(--ink)}.book-card .meta{padding:10px 14px 14px}.book-card .zh{font-family:var(--font-fun);font-size:1.45rem;line-height:1.3}.book-card .en{color:var(--soft);font-size:.82rem}.site-footer{margin-top:70px;text-align:center;color:var(--soft);font-size:.85rem}.footer-link{text-decoration:underline;text-underline-offset:3px}.footer-link:hover{color:var(--ink)}.reader-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:18px 0 10px}.reader-top .home-link{font-weight:700;border:2px solid var(--ink);border-radius:999px;padding:4px 14px;background:var(--card)}.reader-top .home-link:hover{background:var(--line)}.reader-top .book-title{font-family:var(--font-fun);font-size:1.3rem;margin-right:auto}.toggle{border:2px solid var(--ink);border-radius:999px;padding:4px 14px;background:var(--card);color:var(--soft);font:inherit;font-size:.88rem;cursor:pointer}.toggle.on{background:var(--level,var(--red));border-color:var(--level,var(--red));color:#fff}.page-frame{background:var(--card);border:3px solid var(--ink);border-radius:22px;box-shadow:6px 6px 0 var(--level,var(--red));padding:clamp(14px,3vw,30px);max-width:720px;margin:14px auto 0}.page-frame .scene{display:block;width:100%;height:auto;cursor:pointer}.page-text{text-align:center;margin-top:18px;min-height:90px}.page-text ruby{ruby-align:center;margin:0 .06em}.page-text .zh-line{font-size:clamp(1.7rem,5vw,2.5rem);line-height:2;font-weight:500}.page-text rt{font-size:.36em;color:var(--level,var(--red));font-weight:400}.page-text rt.hidden-py{visibility:hidden}.page-text .en-line{color:var(--soft);font-size:1rem;margin-top:4px}.cover-title{font-family:var(--font-fun);font-size:clamp(2.2rem,6vw,3.2rem);text-align:center;margin:10px 0 0;font-weight:400}.cover-py{text-align:center;color:var(--level,var(--red));font-size:1.1rem;font-weight:500}.cover-en{color:var(--soft);margin-bottom:14px}.cover-en,.stage{text-align:center}.stage{padding:8px 0 18px}.stage-title{font-family:var(--font-fun);font-size:1.9rem;font-weight:400;margin:4px 0 2px;color:var(--level,var(--red))}.stage-hint{color:var(--soft);font-size:.9rem;margin:0 0 18px}.char-cards{display:flex;flex-wrap:wrap;justify-content:center;gap:14px}.char-card{font:inherit;cursor:pointer;width:96px;padding:12px 6px 10px;background:var(--paper);border:2.5px solid var(--ink);border-radius:14px;box-shadow:3px 3px 0 var(--level,var(--red));display:flex;flex-direction:column;align-items:center;gap:4px;transition:transform .1s ease}.char-card:hover{transform:translateY(-2px)}.big-char{font-size:2.6rem;line-height:1.2;font-weight:500}.card-py{color:var(--level,var(--red));font-size:.95rem;min-height:1.4em}.card-py.veiled{visibility:hidden}.word-list{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:26px;padding-top:22px;border-top:1.5px dashed var(--line)}.word-card{font:inherit;cursor:pointer;padding:10px 18px 8px;background:var(--paper);border:2.5px solid var(--ink);border-radius:14px;box-shadow:3px 3px 0 var(--level,var(--red));display:flex;flex-direction:column;align-items:center;transition:transform .1s ease}.word-card:hover{transform:translateY(-2px)}.word-zh{font-size:1.9rem;line-height:1.9;font-weight:500}.word-zh rt{font-size:.38em;color:var(--level,var(--red))}.word-zh rt.hidden-py{visibility:hidden}.word-en{color:var(--soft);font-size:.85rem}.chart-intro{text-align:center;color:var(--soft);max-width:620px;margin:10px auto 0}.chart-link{display:inline-block;border:2px solid var(--ink);border-radius:999px;padding:4px 16px;background:var(--card);font-weight:700}.chart-link:hover{background:var(--line)}.chart-row{display:flex;gap:14px;align-items:flex-start;padding:10px 0;border-bottom:1.5px dashed var(--line)}.chart-book{flex:0 0 150px;font-weight:700;padding-top:6px}.chart-book:hover{color:var(--level,var(--red))}.chart-chars{display:flex;flex-wrap:wrap;gap:8px}.chart-char{display:flex;flex-direction:column;align-items:center;border:2px solid var(--level,var(--red));border-radius:10px;background:var(--card);padding:3px 7px 1px;line-height:1.25}.chart-char .c{font-size:1.25rem}.chart-char .p{font-size:.62rem;color:var(--soft)}@media (max-width:560px){.chart-row{flex-direction:column;gap:6px}.chart-book{flex-basis:auto}}.end-page{text-align:center;padding:30px 0}.end-page .fin{font-family:var(--font-fun);font-size:3rem;color:var(--level,var(--red))}.end-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:18px}.btn{display:inline-block;border:2.5px solid var(--ink);border-radius:999px;padding:8px 22px;font:inherit;font-weight:700;background:var(--card);cursor:pointer}.btn.primary{background:var(--level,var(--red));border-color:var(--ink);color:#fff}.btn:hover{transform:translateY(-2px)}.reader-nav{display:flex;align-items:center;justify-content:center;gap:18px;margin-top:20px}.nav-btn{border:2.5px solid var(--ink);background:var(--card);border-radius:50%;width:52px;height:52px;font-size:1.5rem;font-weight:700;cursor:pointer;color:var(--ink);line-height:1}.nav-btn:hover:not(:disabled){background:var(--level,var(--red));color:#fff}.nav-btn:disabled{opacity:.25;cursor:default}.dots{display:flex;gap:8px;align-items:center}.dot{width:11px;height:11px;border-radius:50%;border:2px solid var(--ink);background:var(--card);padding:0;cursor:pointer}.dot.active{background:var(--level,var(--red));border-color:var(--level,var(--red))}.page-count{text-align:center;color:var(--soft);font-size:.85rem;margin-top:8px}.quiet-link{font:inherit;color:var(--soft);background:none;border:none;padding:0;cursor:pointer;text-decoration:underline;text-underline-offset:3px}.quiet-link:hover{color:var(--ink)}