*{box-sizing:border-box}body{margin:0;background:#f6f7fb;color:#263044;font-family:"Microsoft YaHei",Arial,sans-serif}.subject-page-body{padding-top:0!important}.subject-page-header{height:64px;padding:0 max(24px,calc((100% - 1160px)/2));background:#fff;border-bottom:1px solid #e8eaf0;display:flex;align-items:center;justify-content:space-between}.subject-page-header>a{display:flex;align-items:center;gap:10px;color:#273047;text-decoration:none}.subject-page-header>a span{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,#6657d9,#8b7cf0);display:grid;place-items:center;color:#fff;font-weight:800}.subject-page-header>a b{font-size:18px}.subject-page-header>div{display:flex;align-items:center;gap:22px}.subject-page-header>div>a{color:#7c8492;text-decoration:none}.subject-page{max-width:1160px;margin:0 auto;padding:18px 0 42px}.subject-intro{text-align:center}.subject-intro small{color:#7164d9;letter-spacing:3px}.subject-intro h1{font-size:29px;margin:5px 0}.subject-intro p{color:#7a8392;margin:0}.current-subject{display:inline-block;margin-top:11px;padding:6px 13px;border-radius:99px;background:#eeebff;color:#6657d9}.subject-group{margin-top:22px}.subject-group-title{display:flex;align-items:center;gap:11px;margin-bottom:10px}.subject-group-title>span{width:42px;height:42px;border-radius:12px;background:#6b5bdd;color:#fff;display:grid;place-items:center;font-weight:800}.subject-group:nth-of-type(3) .subject-group-title>span{background:#0f9f7f}.subject-group-title h2{font-size:19px;margin:0}.subject-group-title p{margin:2px 0 0;color:#9097a4;font-size:12px}.subject-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.subject-card{position:relative;min-height:122px;padding:17px 18px;background:#fff;border:1px solid #e3e6ed;border-radius:14px;display:flex;gap:13px;color:#263044;text-decoration:none;transition:.2s}.subject-card:hover{transform:translateY(-2px);border-color:#a99fee;box-shadow:0 10px 24px rgba(70,63,130,.09)}.subject-card.selected{border:2px solid #7365df;background:#fcfbff}.subject-card.empty{opacity:.72}.subject-icon{width:42px;height:42px;flex:none;border-radius:11px;background:#eeebff;color:#6657d9;display:grid;place-items:center;font-size:18px;font-weight:800}.subject-card>div{min-width:0}.subject-card em{font-style:normal;color:#7365df;font-size:11px}.subject-card h3{margin:4px 0;font-size:16px}.subject-card p{margin:0;color:#89919f;font-size:12px;line-height:1.5}.subject-card>i{position:absolute;right:15px;top:15px;font-style:normal;color:#7365df;font-size:17px}
@media(max-width:900px){.subject-page{padding:18px 20px 36px}.subject-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.subject-page-header{padding:0 16px}.subject-page-header strong{display:none}.subject-intro h1{font-size:24px}.subject-grid{grid-template-columns:1fr}.subject-card{min-height:auto}.subject-group{margin-top:18px}}