:root{--ltpv4-accent:#04aa6d}.ltpv4-app{font-family:Arial,Helvetica,sans-serif;color:#222;background:#fff}.ltpv4-top{position:sticky;top:0;z-index:9999;display:flex;align-items:center;gap:20px;min-height:58px;padding:0 18px;background:#fff;border-bottom:1px solid #ddd}.ltpv4-logo{font-size:22px;font-weight:800;white-space:nowrap}.ltpv4-logo span{font-weight:400}.ltpv4-languages{display:flex;gap:4px;overflow-x:auto;white-space:nowrap}.ltpv4-languages a{padding:10px 13px;text-decoration:none;color:#222;border-radius:4px;font-size:14px}.ltpv4-languages a:hover,.ltpv4-languages a.active{background:var(--ltpv4-accent);color:#fff}.ltpv4-menu-btn{display:none;border:0;background:var(--ltpv4-accent);color:#fff;padding:8px 12px;border-radius:4px;font-size:20px}.ltpv4-grid{display:grid;grid-template-columns:270px minmax(0,1fr) 220px;min-height:calc(100vh - 58px)}.ltpv4-sidebar{background:#f8f8f8;border-right:1px solid #ddd;position:sticky;top:58px;height:calc(100vh - 58px);overflow-y:auto}.ltpv4-title{padding:16px 18px;font-weight:700;background:#eee;border-bottom:1px solid #ddd}.ltpv4-list a{display:block;padding:9px 18px;color:#333;text-decoration:none;font-size:14px;border-left:4px solid transparent}.ltpv4-list a:hover{background:#e9e9e9}.ltpv4-list a.current{background:#dff3eb;color:#078654;border-left-color:var(--ltpv4-accent);font-weight:700}.ltpv4-empty{padding:18px;color:#777;font-size:13px}.ltpv4-content{max-width:900px;width:100%;margin:auto;padding:30px 42px;box-sizing:border-box}.ltpv4-breadcrumb{font-size:13px;color:#777;margin-bottom:16px}.ltpv4-content h1{font-size:36px;line-height:1.2;margin:0 0 20px}.ltpv4-article{font-size:17px;line-height:1.75}.ltpv4-article img{max-width:100%;height:auto}.ltpv4-nav{display:flex;justify-content:space-between;gap:15px;margin:20px 0}.ltpv4-nav a{background:var(--ltpv4-accent);color:#fff;text-decoration:none;padding:10px 17px;border-radius:5px;font-weight:600}.ltpv4-nav.bottom{border-top:1px solid #ddd;padding-top:20px}.ltpv4-right{padding:20px 12px;background:#fafafa}.ltpv4-ad{height:250px;border:1px dashed #ccc;display:flex;align-items:center;justify-content:center;color:#999;font-size:12px}.ltpv4-related{margin-top:20px;padding:15px;border:1px solid #ddd;background:#fff;font-size:14px}.ltpv4-related p{font-size:13px}@media(max-width:1100px){.ltpv4-grid{grid-template-columns:270px minmax(0,1fr)}.ltpv4-right{display:none}}@media(max-width:768px){.ltpv4-top{flex-wrap:wrap;padding:8px 12px}.ltpv4-menu-btn{display:block}.ltpv4-languages{order:3;width:100%}.ltpv4-grid{display:block}.ltpv4-sidebar{position:fixed;left:-280px;top:0;width:270px;height:100vh;z-index:10000;transition:left .25s;box-shadow:3px 0 12px rgba(0,0,0,.2)}.ltpv4-sidebar.open{left:0}.ltpv4-content{padding:24px 18px}.ltpv4-content h1{font-size:29px}}