.post-nav{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px;margin-top:16px;align-items:stretch}.post-nav-item{position:relative;display:grid;grid-template-columns:32px 1fr;align-items:center;gap:14px;padding:16px 22px;background:#fff;border:1px solid #e8e8e8;border-radius:10px;text-decoration:none;color:inherit;transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease,background .25s ease;min-width:0;overflow:hidden}.post-nav-item:before{content:"";position:absolute;top:0;bottom:0;left:0;width:3px;background:var(--primary);transform:scaleY(0);transform-origin:center;transition:transform .3s ease}.post-nav-next:before{left:auto;right:0}.post-nav-item:not(.is-disabled):hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-card-hover)}.post-nav-item:not(.is-disabled):hover:before{transform:scaleY(1)}.post-nav-icon{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;color:var(--text-gray);font-size:22px;transition:color .25s ease,transform .25s ease;flex-shrink:0}.post-nav-item:not(.is-disabled):hover .post-nav-icon{color:var(--primary)}.post-nav-prev:not(.is-disabled):hover .post-nav-icon{transform:translate(-3px)}.post-nav-next:not(.is-disabled):hover .post-nav-icon{transform:translate(3px)}.post-nav-text{display:flex;flex-direction:column;gap:4px;min-width:0}.post-nav-next{grid-template-columns:1fr 32px}.post-nav-next .post-nav-icon{order:2}.post-nav-next .post-nav-text{text-align:right;align-items:flex-end}.post-nav-label{font-size:12px;font-weight:400;color:var(--text-light);letter-spacing:.12em;text-transform:uppercase}.post-nav-title{font-size:14px;font-weight:500;color:var(--dark);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:color .2s ease;max-width:100%}.post-nav-item.is-disabled{opacity:.55;background:#fafafa}.post-nav-item.is-disabled .post-nav-title{color:var(--text-light)}.post-nav-item.is-disabled .post-nav-icon{color:#bbb}.post-nav-list{display:inline-flex;align-items:center;justify-content:center;gap:4px;min-width:100px;padding:0 20px;background:#fff;border:1px solid #e8e8e8;border-radius:10px;text-decoration:none;color:var(--dark);font-size:14px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease,color .25s ease}.post-nav-list i{display:inline-flex;align-items:center;justify-content:center;font-size:22px;color:var(--dark);transition:color .25s ease,transform .25s ease}.post-nav-list:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-card-hover)}.post-nav-list:hover i{color:var(--primary);transform:scale(1.08)}@media(max-width:640px){.post-nav{grid-template-columns:1fr 1fr;gap:10px}.post-nav-item{grid-template-columns:26px 1fr;gap:10px;padding:12px 14px}.post-nav-next{grid-template-columns:1fr 26px}.post-nav-icon{width:26px;height:26px;font-size:18px}.post-nav-label{font-size:10px;letter-spacing:.1em}.post-nav-title{font-size:13px}.post-nav-list{grid-column:1 / -1;grid-row:2;flex-direction:row;gap:10px;min-width:0;padding:12px 18px}.post-nav-list i{font-size:18px}}.post-attachments{margin:40px 0 24px;padding:20px 24px;background:#fafafa;border:1px solid #ececec;border-radius:12px}.post-attachments-title{margin:0 0 14px;font-size:15px;font-weight:700;color:#222;display:flex;align-items:center;gap:8px}.post-attachments-title i{color:#555;font-size:18px}.post-attachments-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.post-attachments-item{margin:0;padding:0}.post-attachments-link{display:flex;align-items:center;gap:12px;padding:12px 16px;background:#fff;border:1px solid #e5e5e5;border-radius:8px;text-decoration:none;color:#222;transition:border-color .15s,background .15s,transform .15s}.post-attachments-link:hover{border-color:#121212;background:#f6f6f6}.post-attachments-link:active{transform:translateY(1px)}.post-attachments-link>i:first-child{font-size:20px;color:#555;flex-shrink:0}.post-attachments-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px;font-weight:500}.post-attachments-size{flex-shrink:0;font-size:12px;color:#888;font-variant-numeric:tabular-nums}.post-attachments-download{flex-shrink:0;width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;background:#121212;color:#fff;border-radius:50%;font-size:14px;transition:background .15s}.post-attachments-link:hover .post-attachments-download{background:#c8102e}@media(max-width:768px){.post-attachments{margin:28px 0 20px;padding:16px}.post-attachments-link{padding:10px 12px;gap:10px}.post-attachments-name{font-size:13px}}