:root{--main:#4fc3f7;--accent:#ff9800;--bg:#f5fcff;--text:#2a3b47;--card:#ffffff;--maintext:#0277bd;--muted:#5b6b74;--accenttext:#b35900}
*{box-sizing:border-box}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,Arial,sans-serif;background:var(--bg);color:var(--text)}
a{text-decoration:none;color:inherit}
h1,h2,h3{font-weight:800;letter-spacing:.5px;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif}
.ec-header{background-image:linear-gradient(rgba(0,0,0,.45),rgba(0,0,0,.45)),linear-gradient(135deg,var(--main),#81d4fa);padding:18px 24px;border-radius:0 0 14px 14px;box-shadow:0 4px 14px rgba(79,195,247,.35)}
.logo-bar{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap}
.logo{color:#fff;font-size:26px;font-weight:800;text-shadow:0 2px 6px rgba(0,0,0,.15)}
.slogan{font-size:12px;color:#fff;opacity:.85;background:rgba(255,255,255,.2);padding:4px 10px;border-radius:14px}
.main-nav ul{display:flex;flex-wrap:wrap;list-style:none;margin:14px 0 0;padding:0;gap:8px}
.main-nav a{color:#fff;background:rgba(255,255,255,.18);padding:8px 16px;border-radius:14px;display:block;font-weight:700}
.main-nav a:hover{background:var(--accent);color:#fff}
.ec-main,.ec-list,.ec-show{max-width:1100px;margin:0 auto;padding:28px}
.book-shelf h1,.ec-list h1,.ec-show h1{color:var(--maintext);background:var(--card);display:inline-block;padding:10px 22px;border-radius:14px;box-shadow:0 3px 10px rgba(79,195,247,.2)}
.latest-updates h2,.tldr h2,.faq h2{color:var(--maintext);font-size:19px;position:relative;padding-left:16px}
.latest-updates h2::before,.tldr h2::before,.faq h2::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:6px;background:var(--accent);border-radius:14px}
.shelf-list{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:12px}
.shelf-list li{background:var(--card);border-radius:14px;box-shadow:0 3px 10px rgba(79,195,247,.15)}
.shelf-list a{display:flex;align-items:center;gap:8px;font-weight:700;padding:10px 18px;border-radius:14px}
.shelf-list a:hover{background:linear-gradient(135deg,var(--main),var(--accent));color:#fff}
.pill{color:#fff;background:var(--accent);padding:3px 9px;border-radius:14px;font-weight:800;font-size:12px}
.update-list{list-style:none;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.update-list li{background:var(--card);border-radius:14px;padding:10px;box-shadow:0 3px 10px rgba(79,195,247,.15)}
.pic-wrap{position:relative;display:block}
.update-list img{width:100%;height:100px;object-fit:cover;border-radius:14px;display:block}
.new-badge{position:absolute;top:-6px;right:-6px;background:var(--accent);color:#fff;font-size:10px;font-weight:800;padding:3px 8px;border-radius:14px;box-shadow:0 2px 6px rgba(255,152,0,.4)}
.u-title{display:block;font-size:13px;margin-top:8px;font-weight:700}
.u-date{display:block;font-size:11px;color:var(--muted)}
.chapter-list{list-style:none;padding-left:0}
.chapter-list li{padding:10px 14px;border-radius:14px;margin-bottom:6px;background:var(--card)}
.chapter-list li:hover{background:linear-gradient(90deg,rgba(79,195,247,.15),rgba(255,152,0,.1))}
.chap-i{color:#fff;background:var(--maintext);margin-right:12px;font-weight:800;padding:3px 10px;border-radius:14px;font-size:12px}
.pagination{display:flex;gap:10px;justify-content:center;padding:24px 0;flex-wrap:wrap}
.pagination a{color:var(--maintext);background:var(--card);padding:8px 16px;border-radius:14px;font-weight:700;box-shadow:0 3px 8px rgba(79,195,247,.15)}
.pagination a:hover{background:var(--accent);color:#fff}
.byline{color:var(--muted);font-size:13px;padding-bottom:10px}
.tldr{background:var(--card);border-radius:14px;padding:18px 22px;margin:18px 0;box-shadow:0 3px 10px rgba(79,195,247,.15)}
.faq details{border-radius:14px;padding:14px;margin-bottom:10px;background:var(--card);box-shadow:0 3px 10px rgba(79,195,247,.12)}
.faq summary{cursor:pointer;font-weight:700;color:var(--maintext)}
.ec-show article{line-height:1.9}
.chapter-nav{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;background:var(--card);border-radius:14px;padding:16px 20px;margin-top:18px;box-shadow:0 3px 10px rgba(79,195,247,.15)}
.chapter-nav a{color:var(--text);font-weight:700}
.chapter-nav a:hover{color:var(--accenttext)}
.nav-toc a{color:#fff;background:var(--maintext);padding:6px 16px;border-radius:14px;font-weight:800}
aside{margin-top:16px;background:var(--card);border-radius:14px;padding:14px 18px;box-shadow:0 3px 10px rgba(79,195,247,.12)}
.outbound-pick-2 a{color:var(--accenttext);font-weight:700}
.friend-links{padding-top:14px}
.friend-links h3{color:var(--maintext)}
.friend-links ul{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.site-footer .friend-links a{background:#fff;color:var(--text);padding:6px 14px;border-radius:14px;font-weight:600}
.site-footer{background-image:linear-gradient(rgba(0,0,0,.45),rgba(0,0,0,.45)),linear-gradient(135deg,var(--main),#81d4fa);color:#fff;padding:26px;text-align:center;border-radius:14px 14px 0 0;margin-top:20px}
.site-footer a{color:#fff}
.copyright{font-size:12px;margin-top:12px;opacity:.9}
@media(max-width:768px){.update-list{grid-template-columns:repeat(2,1fr)}}

/*xzlink*/
.xz-linkzone,.xz-innerlink{margin:24px auto;max-width:1200px;padding:0 12px;box-sizing:border-box}
.xz-linkzone .xz-block,.xz-innerlink .xz-block{margin:14px 0;padding:14px 16px;background:#fafafa;border:1px solid #eaeaea;border-radius:8px}
.xz-h{margin:0 0 10px;padding-left:9px;border-left:4px solid #d33;font-size:16px;line-height:1.2;color:#222;font-weight:700}
.xz-links{display:flex;flex-wrap:wrap;gap:8px 14px}
.xz-links a{display:inline-block;font-size:13px;line-height:1.9;color:#555;text-decoration:none;white-space:nowrap}
.xz-links a:hover{color:#d33;text-decoration:underline}
.xz-links.xz-domain a{color:#2a6fb0}
.xz-links.xz-tag a{padding:2px 10px;background:#f0f2f5;border-radius:12px;color:#666;font-size:12px;line-height:1.6}
.xz-links.xz-tag a:hover{background:#d33;color:#fff}
.xz-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:4px 24px}
.xz-list li{position:relative;padding-left:12px;line-height:2;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.xz-list li:before{content:"";position:absolute;left:0;top:50%;width:4px;height:4px;margin-top:-2px;background:#d33;border-radius:50%}
.xz-list li a{color:#444;text-decoration:none;font-size:14px}
.xz-list li a:hover{color:#d33}
@media(max-width:640px){.xz-list{grid-template-columns:1fr}.xz-links a{font-size:12px}}
/*/xzlink*/