:root{--hifi-gold:#D4A853;--hifi-gold-dim:rgba(212,168,83,0.6);--hifi-bg:#0e0e0e;--hifi-bg-2:#141414;--hifi-border:#1a1a1a;--hifi-border-2:#2a2a2a;--hifi-text:#e5e5e5;--hifi-text-dim:rgba(245,245,245,0.85);--hifi-text-faint:#666;--hifi-success:#66bb6a;--hifi-error:#ff5252}.single-post-shell{flex:1;width:100%;box-sizing:border-box;padding:7rem 2rem 4rem}.single-post-gutter{display:none}.single-post-page{min-width:0;width:100%;max-width:800px;margin:0 auto}.single-post-meta{font-size:.85rem;color:rgb(212 168 83 / .6);margin-bottom:.5rem}.single-post-title{font-size:clamp(1.8rem, 4vw, 2.5rem);font-weight:600;color:#fff;margin-bottom:1.5rem;line-height:1.3}.single-post-divider{border:none;border-top:1px solid rgb(212 168 83 / .2);margin-bottom:2rem}.single-post-content{color:rgb(245 245 245 / .85);line-height:1.8;font-size:1.05rem}.back-to-blog{margin-top:3rem}.back-to-blog .load-more-btn{display:inline-block;padding:.75rem 2rem;background:#fff0;border:2px solid var(--hifi-gold);color:var(--hifi-gold);text-decoration:none;font-weight:600;border-radius:9999px;transition:all 0.3s}.single-post-aside{display:block;height:0;overflow:visible;padding:0;margin:0}@media (min-width:768px){body.single.single-post,body.single-post-body{--engagement-rail:280px}body.single.single-post .single-post-shell,body.single-post-body .single-post-shell{padding:7rem 2rem 4rem;max-width:100%}body.single.single-post .single-post-page,body.single-post-body .single-post-page{max-width:800px;margin-left:auto;margin-right:auto}body.single.single-post .single-post-aside,body.single-post-body .single-post-aside{position:fixed;top:80px;right:0;width:var(--engagement-rail);height:calc(100vh - 100px);z-index:50;pointer-events:none}body.single.single-post .hifi-drawer,body.single-post-body .hifi-drawer{position:fixed;top:80px;right:0;width:var(--engagement-rail);height:calc(100vh - 100px);transform:translateX(0);z-index:60}html.engagement-js body.single.single-post:not(.engagement-open) .hifi-drawer,html.engagement-js body.single-post-body:not(.engagement-open) .hifi-drawer{transform:translateX(100%)}body.single.single-post .hifi-mobile-close,body.single-post-body .hifi-mobile-close{display:flex}html.engagement-js body.single.single-post:not(.engagement-open) .hifi-fab,html.engagement-js body.single-post-body:not(.engagement-open) .hifi-fab{display:flex;right:0;top:50%;transform:translateY(-50%);width:44px;height:120px;border-radius:10px 0 0 10px;flex-direction:column;gap:6px;font-size:18px;box-shadow:-4px 0 16px rgb(212 168 83 / .25)}html.engagement-js body.single.single-post:not(.engagement-open) .hifi-fab::after,html.engagement-js body.single-post-body:not(.engagement-open) .hifi-fab::after{content:'互动';font-size:11px;font-weight:600;letter-spacing:.12em;writing-mode:vertical-rl}body.single.single-post .single-post-aside .hifi-drawer,body.single-post-body .single-post-aside .hifi-drawer,body.single.single-post .single-post-aside .hifi-fab,body.single-post-body .single-post-aside .hifi-fab,body.single.single-post .single-post-aside .hifi-mobile-overlay,body.single-post-body .single-post-aside .hifi-mobile-overlay{pointer-events:auto}}@media (min-width:1024px){body.single.single-post,body.single-post-body{--engagement-rail:320px}}.hifi-drawer{background:var(--hifi-bg);border-left:2px solid var(--hifi-gold);box-shadow:-4px 0 24px rgb(212 168 83 / .15),inset 1px 0 0 rgb(212 168 83 / .3);display:flex;flex-direction:column;font-family:'Inter',system-ui,-apple-system,sans-serif;color:var(--hifi-text);font-size:12px;overflow:hidden;transition:transform 0.25s ease-out}.hifi-section{padding:14px 16px;border-bottom:1px solid var(--hifi-border);flex-shrink:0}.hifi-section-title{font-size:10px;text-transform:uppercase;letter-spacing:1.2px;color:var(--hifi-gold-dim);margin-bottom:10px;font-weight:500}.hifi-stat{display:flex;gap:18px}.hifi-stat .num{color:#fff;font-weight:600;font-size:13px}.hifi-stat .label{color:var(--hifi-gold-dim);font-size:10px;margin-left:4px}.hifi-reactions{display:flex;gap:6px;flex-wrap:wrap}.hifi-rxn{display:inline-flex;align-items:center;gap:4px;padding:5px 10px;background:var(--hifi-bg-2);border:1px solid var(--hifi-border-2);border-radius:12px;font-size:11px;cursor:pointer;transition:all 0.15s;user-select:none}.hifi-rxn:hover{background:#1f1f1f;border-color:var(--hifi-gold)}.hifi-rxn:active{transform:scale(.95)}.hifi-rxn.picked{background:rgb(212 168 83 / .15);border-color:var(--hifi-gold);color:var(--hifi-gold)}.hifi-rxn .count{color:#aaa;font-size:10px;font-weight:600}.hifi-rxn.picked .count{color:var(--hifi-gold)}.hifi-share-row{display:flex;gap:6px;flex-wrap:wrap}.hifi-share-btn{display:inline-flex;align-items:center;gap:4px;padding:5px 9px;background:var(--hifi-bg-2);border:1px solid var(--hifi-border-2);border-radius:4px;font-size:11px;cursor:pointer;color:#ccc;transition:all 0.15s}.hifi-share-btn:hover{background:#1f1f1f;border-color:var(--hifi-gold)}.hifi-share-plugin .a2a_kit{display:flex;flex-wrap:wrap;gap:6px;line-height:1}.hifi-share-plugin .a2a_kit a{display:inline-flex;align-items:center;justify-content:center;float:none!important;margin:0!important;padding:4px;background:var(--hifi-bg-2);border:1px solid var(--hifi-border-2);border-radius:4px;transition:border-color 0.15s,background 0.15s}.hifi-share-plugin .a2a_kit a:hover{background:#1f1f1f;border-color:var(--hifi-gold)}.hifi-share-plugin .a2a_kit img{display:block}.hifi-mirror-notice{background:rgb(212 168 83 / .05);border-left:2px solid var(--hifi-gold);padding:8px 16px;font-size:10px;color:var(--hifi-gold-dim);border-bottom:1px solid var(--hifi-border)}.hifi-comments-section{flex:1;display:flex;flex-direction:column;border-bottom:1px solid var(--hifi-border);overflow:hidden}.hifi-comments-section .hifi-section-title{padding:14px 16px 8px;margin-bottom:0;border-bottom:1px solid var(--hifi-border)}.hifi-comments{flex:1;overflow-y:auto;padding:12px 16px}.hifi-no-comments{color:var(--hifi-text-faint);font-size:11px;text-align:center;padding:24px 0}.hifi-no-comments a{color:var(--hifi-gold);text-decoration:none}.hifi-comment{background:var(--hifi-bg-2);border-left:2px solid var(--hifi-border-2);padding:10px 12px;margin-bottom:8px;font-size:11.5px;line-height:1.6;border-radius:0 3px 3px 0}.hifi-comment.op{border-left-color:var(--hifi-gold)}.hifi-comment-head{display:flex;align-items:center;gap:6px;margin-bottom:4px;font-size:10.5px;color:#888;flex-wrap:wrap}.hifi-floor{color:var(--hifi-gold);font-weight:600;font-family:'Space Grotesk',monospace;font-size:10.5px}.hifi-author{color:var(--hifi-gold);font-weight:500}.hifi-author .hifi-op-badge{font-size:9px;background:var(--hifi-gold);color:#0a0a0a;padding:1px 5px;border-radius:2px;margin-left:4px;font-weight:600}.hifi-flag{font-size:13px}.hifi-time{color:var(--hifi-text-faint);font-size:10px;margin-left:auto}.hifi-comment-body{color:var(--hifi-text-dim);margin:4px 0 6px;word-wrap:break-word}.hifi-comment-body p{margin:0 0 4px}.hifi-comment-body p:last-child{margin-bottom:0}.hifi-comment-actions{display:flex;gap:12px;font-size:10px;color:var(--hifi-text-faint)}.hifi-comment-actions span{cursor:pointer;transition:color 0.15s}.hifi-comment-actions span:hover{color:var(--hifi-gold)}.hifi-comment-children{margin-left:24px;margin-top:4px;padding-left:8px;border-left:1px solid var(--hifi-border-2)}.hifi-comment-children .hifi-comment{background:#101010;border-left-color:#444;border-left-width:1px;margin-bottom:6px}.hifi-input{padding:10px 12px;border-top:1px solid var(--hifi-border);display:flex;gap:6px;flex-shrink:0;flex-direction:column}.hifi-auth-actions{display:flex;gap:6px;align-items:center;margin-bottom:6px}.hifi-auth-link{flex:1;display:inline-block;text-align:center;padding:6px 10px;font-size:11px;font-weight:600;color:#ccc;background:var(--hifi-bg-2);border:1px solid var(--hifi-border-2);text-decoration:none;border-radius:3px;transition:all 0.15s}.hifi-auth-link:hover{background:#1f1f1f;border-color:var(--hifi-gold)}.hifi-auth-link--primary{color:#0a0a0a;background:var(--hifi-gold);border-color:var(--hifi-gold)}.hifi-auth-link--primary:hover{background:#e5be6a;border-color:#e5be6a}.hifi-input>input,.hifi-input>button{align-self:stretch}.hifi-input input{flex:1;background:var(--hifi-bg-2);border:1px solid var(--hifi-border-2);color:var(--hifi-text);padding:6px 10px;font-size:11px;border-radius:3px;outline:none;font-family:inherit}.hifi-input input:focus{border-color:var(--hifi-gold)}.hifi-input input:disabled{opacity:.5;cursor:not-allowed}.hifi-input button{background:var(--hifi-gold);border:0;color:#0a0a0a;padding:0 12px;font-size:11px;font-weight:600;border-radius:3px;cursor:pointer;font-family:inherit}.hifi-input button:disabled{opacity:.5;cursor:not-allowed}.hifi-input>input:disabled{opacity:.7;cursor:not-allowed}.hifi-fab{display:none;position:fixed;top:80px;right:16px;width:48px;height:48px;background:var(--hifi-gold);color:#0a0a0a;border-radius:50%;align-items:center;justify-content:center;font-size:16px;font-weight:700;box-shadow:0 4px 16px rgb(212 168 83 / .4);cursor:pointer;z-index:100;border:0;font-family:inherit}.hifi-fab .badge{position:absolute;top:-2px;right:-2px;background:var(--hifi-error);color:#fff;font-size:10px;font-weight:700;min-width:20px;height:20px;border-radius:10px;padding:0 5px;display:flex;align-items:center;justify-content:center;border:2px solid #050505;box-sizing:border-box}.hifi-mobile-close{display:none;position:absolute;top:10px;right:10px;width:32px;height:32px;background:var(--hifi-bg-2);border:1px solid var(--hifi-border-2);color:var(--hifi-gold);border-radius:50%;font-size:16px;cursor:pointer;z-index:5;align-items:center;justify-content:center}.hifi-mobile-overlay{display:none;position:fixed;inset:0;background:rgb(0 0 0 / .6);z-index:49}@media (max-width:767px){body.single.single-post .hifi-drawer,body.single-post-body .hifi-drawer{position:fixed;top:0;right:0;width:85%;max-width:360px;height:100vh;transform:translateX(100%);z-index:60}body.single.single-post .hifi-drawer.open,body.single-post-body .hifi-drawer.open{transform:translateX(0)}.hifi-mobile-close{top:72px}.hifi-fab{display:flex}body.single.single-post.engagement-open .hifi-fab,body.single-post-body.engagement-open .hifi-fab{display:none}.hifi-mobile-close{display:flex}body.single.single-post.engagement-open .hifi-mobile-overlay,body.single-post-body.engagement-open .hifi-mobile-overlay{display:block}}.hifi-toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:rgb(20 20 20 / .95);color:var(--hifi-text);padding:10px 18px;border-radius:4px;border:1px solid var(--hifi-gold);font-size:12px;z-index:200;opacity:0;transition:opacity 0.2s;pointer-events:none}.hifi-toast.show{opacity:1}.hifi-toast.error{border-color:var(--hifi-error);color:var(--hifi-error)}