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10px;font-size:12px;font-weight:700;display:inline-block}.pd-tracks{grid-template-columns:1fr 1fr;gap:16px;margin-top:28px;display:grid}.pd-tracks div{border:1px solid var(--line);background:#fff;border-radius:16px;padding:24px}.pd-tracks h3{margin:10px 0;font-size:17px}.pd-tracks ul{color:var(--sub);gap:4px;padding-left:18px;font-size:15px;display:grid}.pd-principles{counter-reset:pr;gap:12px;margin-top:24px;list-style:none;display:grid}.pd-principles li{counter-increment:pr;background:#fff;border-radius:14px;grid-template-columns:40px 1fr;column-gap:12px;padding:18px 20px;display:grid}.pd-principles li:before{content:counter(pr);background:var(--peri-700);color:#fff;border-radius:50%;grid-row:span 2;place-items:center;width:32px;height:32px;font-size:15px;font-weight:700;display:grid}.pd-principles h3{font-size:16px}.pd-principles p{color:var(--sub);font-size:15px}.pd-filetypes{gap:8px;margin:20px 0;list-style:none;display:grid}.pd-filetypes li{background:var(--peri-50);border-radius:12px;flex-direction:column;padding:14px 16px;display:flex}.pd-filetypes span{color:var(--sub);font-size:14px}.pd-files{border-top:1px solid var(--line);gap:0;margin-top:16px;list-style:none;display:grid}.pd-files li{border-bottom:1px solid var(--line);align-items:center;gap:12px;padding:14px 4px;font-size:15px;display:flex}.pd-pdf{color:var(--peri-700);border:1.5px solid var(--peri-300);border-radius:6px;padding:2px 6px;font-size:11px;font-weight:800}.pd-fname{overflow-wrap:anywhere;flex:1;min-width:0}.pd-fsize{color:var(--sub);font-variant-numeric:tabular-nums;font-size:14px}.pd-fit{color:var(--ink);gap:4px;padding-left:20px;display:grid}.pd-link{color:var(--peri-700);font-weight:600}.pd-guide{border-top:1px solid var(--peri-200);gap:0;margin-top:20px;display:grid}.pd-guide div{border-bottom:1px solid var(--peri-200);grid-template-columns:120px 1fr;gap:16px;padding:16px 0;display:grid}.pd-guide dt{font-weight:700}.pd-guide dd{color:var(--sub);margin:0;font-size:15px}.pd-exclude{color:var(--sub);font-size:13px}.pd-buybar{display:none}@media (max-width:860px){.pd-hero-grid{grid-template-columns:1fr;gap:28px}.pd-hero .cover-lg{width:100%;max-width:300px;margin:0 auto}.pd-info h1{font-size:28px}.pd-points,.pd-tracks{grid-template-columns:1fr}.pd-sec{padding:56px 0}.pd-h2,.pd-stats b{font-size:26px}.pd-guide div{grid-template-columns:1fr;gap:4px}.pd-buy{display:none}.pd-buybar{z-index:45;padding:10px 16px calc(10px + env(safe-area-inset-bottom,0px));border-top:1px solid var(--line);background:#fff;justify-content:space-between;align-items:center;gap:12px;display:flex;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -8px 24px -16px #2c355759}.pd-buybar small{color:var(--sub);font-size:12px;display:block}.pd-buybar b{font-size:20px}.pd-buybar .shop-msg{background:#fff;border-radius:8px;padding:4px 8px;position:absolute;bottom:100%;right:16px}.pd{padding-bottom:96px}body:has(.pd-buybar) .tutor-fab{display:none}}.ov{margin:6px 0 4px}.ov-scroll{border:1px solid var(--line);border-radius:12px;overflow-x:auto}.ov table{border-collapse:collapse;width:100%;min-width:640px;font-size:13px;line-height:1.5}.ov th,.ov td{border-bottom:1px solid var(--line);text-align:left;vertical-align:top;padding:8px 10px}.ov th{background:var(--peri-50);color:var(--ink);white-space:nowrap;font-weight:700}.ov td a{color:var(--peri-700);font-weight:600}.ov-refuse{color:var(--sub);margin-top:8px;font-size:13px}.ov-compact table{font-size:12px}.policy-banner{background:var(--peri-900);color:#fff;font-size:14px}.policy-banner .wrap{gap:4px;padding-top:10px;padding-bottom:10px;display:grid}.policy-banner p{flex-wrap:wrap;align-items:baseline;gap:4px 10px;display:flex}.policy-banner span{color:var(--peri-200)}.policy-banner a{color:#fff;text-underline-offset:3px;font-weight:700;text-decoration:underline}.policy-notice{border-top:1px solid var(--line);margin-top:28px;padding-top:20px}.policy-meta{color:var(--sub);font-size:14px}