.library-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:22px}
.library-card{min-height:270px;border-radius:28px;padding:32px;color:#fff;display:flex;flex-direction:column;justify-content:flex-end;box-shadow:0 18px 45px #39248322;overflow:hidden;position:relative}
.library-card:after{content:"";position:absolute;width:220px;height:220px;border:35px solid #ffffff18;border-radius:50%;right:-55px;top:-75px}
.textbook-card{background:linear-gradient(135deg,#5b3fd6,#8b67ee)}.reference-card{background:linear-gradient(135deg,#0e927e,#35c6a9)}
.library-art{font-size:64px;position:absolute;right:35px;top:30px}.library-card small{font-weight:900;letter-spacing:1.5px}.library-card strong{font-size:30px;line-height:1.15;margin:10px 0}.library-card p{margin:0 0 20px;opacity:.9}.library-card b{font-size:17px}
.library-grade-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.library-grade{min-height:220px}.empty-library,.coming-note{background:#fff;border:2px solid #e8e2ff;border-radius:22px;padding:24px}.coming-note{margin-top:22px;color:#5b4a8d}
.course-level{margin:28px 0 42px}.course-level-title{display:flex;gap:15px;align-items:center;margin-bottom:18px}.course-level-title>span{font-size:42px}.course-level-title h2,.course-level-title p{margin:0}.course-level-title p{color:#766e91}
.subject-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.subject-card{background:#fff;border:2px solid #ebe7f8;border-top:7px solid var(--accent);border-radius:24px;padding:26px;min-height:180px;display:flex;flex-direction:column;box-shadow:0 10px 25px #27165e0d}.subject-card i{font-style:normal;font-size:46px}.subject-card strong{font-size:25px;margin:16px 0 8px}.subject-card span{color:#7161a4}
.locked-book{display:flex;align-items:center;gap:22px;padding:28px;border:2px dashed #bcb3d6;border-radius:24px;background:#f6f4fa;color:#756d89;opacity:.88}.locked-book>span{font-size:48px}.locked-book h2,.locked-book p{margin:4px 0}.locked-book small{font-weight:900;letter-spacing:1.3px}
.book-series-chip,.lesson-book-tag{display:inline-flex;background:#eee9ff;color:#6047bf;border-radius:999px;padding:8px 13px;font-weight:800;margin-top:10px}.textbook-lesson .lesson-lead{font-size:20px}.visual-tip{background:linear-gradient(135deg,#fff5cb,#fff);border:2px solid #f4df8d;border-radius:20px;padding:20px;margin:22px 0}.visual-tip p{margin-bottom:0}
@media(max-width:800px){.library-grid,.library-grade-grid,.subject-grid{grid-template-columns:1fr 1fr}.library-card{min-height:230px}.library-grid .library-card:first-child{grid-column:1/-1}}
@media(max-width:560px){.library-grid,.library-grade-grid,.subject-grid{grid-template-columns:1fr}.library-grid .library-card:first-child{grid-column:auto}.library-card{min-height:210px;padding:25px}.library-card strong{font-size:25px}}