.survival-page{--bg2:#111;--bg3:#161616;--accent:#39ff14;--accent-hover:#5cff3f;--accent-fill:#39ff14;--accent-grad:linear-gradient(120deg, #39ff14, #af0);--accent-dim:#39ff141f;--accent-border:#39ff144d;--text-muted:#ffffff73;--text-dim:#ffffff40;--border:#ffffff12;--sidebar-w:240px;background:var(--bg);color:var(--text);min-height:100vh;font-family:DM Sans,Segoe UI,sans-serif}.sv-layout{min-height:calc(100vh - 64px);display:flex}.sv-sidebar{width:var(--sidebar-w);background:var(--bg2);border-right:.5px solid var(--border);flex-shrink:0;height:calc(100vh - 64px);padding-bottom:40px;position:sticky;top:64px;overflow-y:auto}.sv-sidebar::-webkit-scrollbar{width:4px}.sv-sidebar::-webkit-scrollbar-track{background:0 0}.sv-sidebar::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:2px}.sv-sidebar-header{color:var(--text-dim);text-transform:uppercase;letter-spacing:.08em;border-bottom:.5px solid var(--border);padding:14px 16px 10px;font-size:10px;font-weight:600}.sv-chapter-item{border-bottom:.5px solid var(--border)}.sv-chapter-btn{cursor:pointer;width:100%;color:var(--text);text-align:left;background:0 0;border:none;justify-content:space-between;align-items:center;gap:8px;padding:12px 16px;font-family:inherit;font-size:12px;font-weight:600;transition:background .15s,color .15s;display:flex}.sv-chapter-btn:hover{background:var(--bg3);color:var(--text)}.sv-chapter-btn.active{background:var(--bg3);color:var(--accent);border-left:3px solid var(--accent)}.sv-chapter-btn .sv-arrow{color:var(--accent);flex-shrink:0;font-size:9px;transition:transform .2s}.sv-chapter-btn.open .sv-arrow{transform:rotate(180deg)}.sv-chapter-subs{background:var(--bg-2);display:none}.sv-chapter-subs.open{display:block}.sv-sub-link{color:var(--text-muted);border-bottom:.5px solid #ffffff08;padding:7px 16px 7px 24px;font-size:11px;text-decoration:none;transition:color .15s,background .15s;display:block}.sv-sub-link:hover{color:var(--accent);background:var(--accent-dim)}.sv-sub-link.active{color:var(--accent)}.sv-cta-block{border-top:.5px solid var(--border);flex-direction:column;gap:10px;margin-top:6px;padding:16px;display:flex}.sv-cta-link{box-sizing:border-box;width:100%;font:inherit;color:inherit;text-align:left;cursor:pointer;background:0 0;border:none;border-radius:10px;align-items:center;gap:10px;padding:12px 14px;text-decoration:none;transition:background .18s,border-color .18s,box-shadow .18s,transform .18s;display:flex}.sv-cta-icon{flex-shrink:0;font-size:16px;line-height:1}.sv-cta-text{flex-direction:column;gap:2px;min-width:0;display:flex}.sv-cta-label{font-size:13px;font-weight:700;line-height:1.25}.sv-cta-link.primary{background:var(--accent-grad);box-shadow:0 2px 10px #39ff1438}.sv-cta-link.primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 4px 16px #39ff1466}.sv-cta-link.primary .sv-cta-label{color:#0a0a0a}.sv-cta-sub{color:#0a0a0ab8;font-size:10.5px;font-weight:400;line-height:1.2}.sv-cta-link.secondary{border:1px solid var(--accent-border);background:0 0}.sv-cta-link.secondary:hover{border-color:var(--accent);background:var(--accent-dim)}.sv-cta-link.secondary .sv-cta-label{color:var(--accent);font-weight:600}.sv-main{flex:1;max-width:900px;padding:40px 60px 80px}.sv-breadcrumb{color:var(--text-dim);margin-bottom:20px;font-size:12px}.sv-breadcrumb span{color:var(--text-muted)}.sv-chapter-content{display:none}.sv-chapter-content.active{display:block}.sv-chapter-title{background:var(--accent-grad);-webkit-text-fill-color:transparent;color:var(--accent);-webkit-background-clip:text;background-clip:text;margin-bottom:6px;font-size:32px;font-weight:700;line-height:1.2}.sv-chapter-num{color:var(--text-dim);text-transform:uppercase;letter-spacing:.07em;margin-bottom:20px;font-size:12px}.sv-img-hero{border:.5px solid var(--accent-border);border-radius:8px;width:100%;margin-bottom:32px;overflow:hidden}.sv-img-hero img{aspect-ratio:1280/400;object-fit:cover;width:100%;height:auto;display:block}.sv-img-placeholder{border:.5px dashed var(--accent-border);background:#ffffff05;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:6px;width:100%;height:220px;margin-bottom:32px;display:flex}.sv-img-icon{border:1.5px dashed #39ff144d;border-radius:4px;justify-content:center;align-items:center;width:36px;height:26px;display:flex}.sv-img-dot{border:1.5px solid #39ff144d;border-radius:50%;width:8px;height:8px}.sv-img-placeholder-label{color:#39ff1466;text-transform:uppercase;letter-spacing:.07em;font-size:11px}.sv-img-placeholder-sub{color:var(--text-dim);font-size:10px}.sv-section{margin-bottom:36px;scroll-margin-top:80px}.sv-section-with-img{align-items:flex-start;gap:24px;display:flex}.sv-section-text{flex:1}.sv-section-thumb{border:.5px dashed var(--accent-border);color:#39ff144d;text-transform:uppercase;letter-spacing:.05em;background:#ffffff05;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;width:180px;height:120px;font-size:10px;display:flex}.sv-section-heading{color:var(--accent);border-bottom:.5px solid #39ff1433;margin-bottom:12px;padding-bottom:8px;font-size:18px;font-weight:600}.sv-main p{color:var(--text-muted);margin-bottom:10px;font-size:14px;line-height:1.75}.sv-main p strong{color:var(--text);font-weight:600}.sv-steps-list{margin:0;padding:0;list-style:none}.sv-step-item{align-items:flex-start;gap:14px;margin-bottom:14px;display:flex}.sv-step-num{background:var(--accent-fill);border:.5px solid var(--accent-fill);color:#0a0a0a;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:24px;height:24px;margin-top:1px;font-size:11px;font-weight:600;display:flex}.sv-step-body{color:var(--text-muted);font-size:14px;line-height:1.7}.sv-step-body strong{color:var(--text)}.sv-case-block{border:.5px solid var(--border);background:#ffffff05;border-radius:8px;margin-bottom:14px;padding:16px 20px}.sv-case-title{color:var(--text);margin-bottom:8px;font-size:13px;font-weight:600}.sv-case-body{color:var(--text-muted);font-size:13px;line-height:1.75}.sv-case-body strong{color:var(--text)}.sv-case-source{color:var(--text-muted);opacity:.65;margin-top:8px;font-size:11px;font-style:italic}.sv-tip-block{border-left:2px solid var(--accent);background:#39ff140a;margin:14px 0;padding:12px 16px}.sv-tip-label{color:var(--accent);text-transform:uppercase;letter-spacing:.08em;margin-bottom:6px;font-size:10px;font-weight:600}.sv-tip-body{color:var(--text-muted);font-size:13px;line-height:1.7}.sv-warn-block{background:#ff32320a;border-left:2px solid #e24b4a;margin:14px 0;padding:12px 16px}.sv-warn-label{color:#e24b4a;text-transform:uppercase;letter-spacing:.08em;margin-bottom:6px;font-size:10px;font-weight:600}.sv-warn-body{color:var(--text-muted);font-size:13px;line-height:1.7}.sv-phrase-list{margin:0;padding:0;list-style:none}.sv-phrase-item{border-bottom:.5px solid var(--border);color:var(--text-muted);align-items:flex-start;gap:10px;padding:8px 0;font-size:13px;line-height:1.6;display:flex}.sv-phrase-item:last-child{border-bottom:none}.sv-phrase-dot-ok{background:#39b96a;border-radius:50%;flex-shrink:0;width:6px;height:6px;margin-top:6px}.sv-phrase-dot-no{background:#e24b4a;border-radius:50%;flex-shrink:0;width:6px;height:6px;margin-top:6px}.sv-lifehack-list{margin:0;padding:0;list-style:none}.sv-lifehack-item{gap:12px;margin-bottom:12px;display:flex}.sv-lh-num{color:var(--accent-border);flex-shrink:0;min-width:24px;font-size:18px;font-weight:700;line-height:1}.sv-lh-body{color:var(--text-muted);font-size:13px;line-height:1.7}.sv-chapter-nav{border-top:.5px solid var(--border);justify-content:space-between;margin-top:48px;padding-top:24px;display:flex}.sv-ch-nav-btn{border:.5px solid var(--border);color:var(--text-muted);cursor:pointer;background:0 0;border-radius:8px;padding:10px 16px;font-family:inherit;font-size:13px;transition:all .2s}.sv-ch-nav-btn:hover{border-color:var(--accent);color:var(--accent)}.sv-lock{text-align:center;border:.5px dashed var(--accent-border);background:radial-gradient(120% 80% at 50% 0,#39ff140f,#0000 70%),#ffffff05;border-radius:12px;flex-direction:column;align-items:center;gap:14px;padding:56px 32px 64px;display:flex}.sv-lock-icon{filter:drop-shadow(0 2px 10px #39ff1440);font-size:40px;line-height:1}.sv-lock-title{color:var(--text);font-size:20px;font-weight:700}.sv-lock-text{color:var(--text-muted);max-width:460px;margin:0;font-size:14px;line-height:1.7}.sv-lock-btn{cursor:pointer;background:var(--accent-grad);border:none;border-radius:12px;flex-direction:column;align-items:center;gap:2px;margin-top:8px;padding:14px 28px;font-family:inherit;transition:filter .18s,box-shadow .18s,transform .18s;display:inline-flex;box-shadow:0 2px 14px #39ff1447}.sv-lock-btn:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 4px 20px #39ff1473}.sv-lock-btn-icon{font-size:16px;line-height:1}.sv-lock-btn-label{color:#0a0a0a;font-size:14px;font-weight:700}.sv-lock-btn-sub{color:#0a0a0ab8;font-size:11px;font-weight:400}.sv-lock-have{flex-direction:column;align-items:center;gap:8px;width:100%;max-width:380px;margin-top:22px;display:flex}.sv-lock-have-label{color:var(--text-muted);font-size:12px}.sv-lock-signin{border:.5px solid var(--accent-border);color:var(--accent);background:#39ff1414;border-radius:10px;justify-content:center;align-items:center;padding:9px 18px;font-family:inherit;font-size:13px;font-weight:600;text-decoration:none;transition:background .18s,border-color .18s;display:inline-flex}.sv-lock-signin:hover{border-color:var(--accent);background:#39ff1429}.sv-lock-err{color:#ff6b6b;font-size:12px}.sv-lock-tag{opacity:.85;flex-shrink:0;font-size:11px}.sv-home{max-width:800px;padding:40px 60px}.sv-home-title{background:var(--accent-grad);-webkit-text-fill-color:transparent;color:var(--accent);-webkit-background-clip:text;background-clip:text;margin-bottom:24px;font-size:clamp(28px,4vw,42px);font-weight:800;line-height:1.2}.sv-home-text{color:#fff9;margin-bottom:16px;font-size:16px;line-height:1.8}html.light .survival-page{--bg2:#fff;--bg3:#f5f5f5;--text-dim:#111;--text-muted:#555;--accent:#1a7a00;--accent-dim:#39ff1424;--accent-border:#1a7a0073;--border:#0000001f}html.light .survival-page .sv-chapter-title,html.light .survival-page .sv-home-title{-webkit-text-fill-color:var(--accent);color:var(--accent);background:0 0}html.light .survival-page .sv-sub-link{color:#444}.sv-back-btn{background:var(--bg2);border:1px solid var(--border);color:var(--accent);cursor:pointer;border-radius:10px;align-items:center;gap:8px;margin-bottom:18px;padding:11px 16px;font-family:inherit;font-size:14px;font-weight:700;display:none}.sv-back-btn:hover{background:var(--bg3)}@media (width<=720px){.sv-layout{flex-direction:column}.sv-sidebar{width:100%;height:auto;max-height:none;position:static;top:auto;overflow:visible}.sv-layout:not(.sv-detail-open) .sv-main,.sv-layout.sv-detail-open .sv-sidebar{display:none}.sv-back-btn{display:inline-flex}.sv-main{max-width:100%;padding:24px 16px 60px}.sv-home{max-width:100%;padding:32px 16px}.sv-section-with-img{flex-direction:column;gap:14px}}