.chapter-nav-wrapper{position:sticky;top:0;z-index:1000;background:#faf7f2f5;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid #e0d4d8;box-shadow:0 4px 20px #22181c0a;padding:.6rem 0;margin-bottom:1.8rem;overflow:visible!important}.chapter-nav-container{max-width:1140px;margin:0 auto;padding:0 1.2rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;overflow:visible!important}.chapter-nav-title{font-size:.9rem;font-weight:700;color:#6e5f64;display:flex;align-items:center;gap:.4rem;white-space:nowrap}.chapter-nav-tabs{display:flex;align-items:center;gap:.45rem;flex-wrap:wrap;overflow:visible!important}.nav-tab-item{position:relative;display:inline-block;flex-shrink:0}.nav-tab-pill{display:inline-flex;align-items:center;gap:.4rem;padding:.45rem .9rem;border-radius:50px;font-size:.84rem;font-weight:600;color:#42353a;background:#fff;border:1px solid #e0d4d8;cursor:pointer;transition:all .2s cubic-bezier(.16,1,.3,1);user-select:none;white-space:nowrap}.nav-tab-pill:hover{background:#fcf1f5;color:var(--sj-p, #5c1d3d);border-color:#d6ccbd;box-shadow:0 4px 12px #22181c0d;transform:translateY(-1px)}.nav-tab-pill.active{background:linear-gradient(135deg,var(--sj-p, #5c1d3d),var(--sj-pd, #3f1128));color:#fff;border-color:transparent;font-weight:700;box-shadow:0 4px 14px #5c1d3d47}.nav-tab-pill.unit-tab{background:#f6f1f2;color:#5c1d3d;border-color:#e0d4d8}.nav-tab-pill.unit-tab:hover{background:#fcf1f5;color:#3f1128;border-color:#5c1d3d}.nav-tab-pill .chevron-icon{font-size:.7rem;opacity:.65;transition:transform .25s ease;margin-left:2px}.nav-tab-item.active-open .chevron-icon,.nav-tab-item:hover .chevron-icon{transform:rotate(180deg);opacity:1}.nav-dropdown-card{display:none;position:absolute;top:calc(100% + 6px);left:0;background:#fff;min-width:240px;border:1px solid #e0d4d8;border-radius:14px;box-shadow:0 16px 36px -4px #22181c1a,0 4px 12px -2px #22181c0d;z-index:9999;padding:6px;animation:dropdownFadeIn .2s cubic-bezier(.16,1,.3,1) both}.nav-dropdown-card:before{content:"";position:absolute;top:-12px;left:0;width:100%;height:12px;background:transparent}@keyframes dropdownFadeIn{0%{opacity:0;transform:translateY(-8px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}.nav-tab-item.active-open .nav-dropdown-card,.nav-tab-item:hover .nav-dropdown-card{display:block!important}.nav-dropdown-item{display:flex;align-items:center;gap:.5rem;padding:.55rem .85rem;border-radius:8px;font-size:.82rem;color:#42353a;font-weight:550;transition:all .15s ease}.nav-dropdown-item:hover{background:#fcf1f5;color:var(--sj-p, #5c1d3d)}.mobile-floating-dock{display:none;position:fixed;bottom:20px;left:50%;transform:translate(-50%);background:#22181cf0;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.12);border-radius:40px;padding:.5rem .8rem;box-shadow:0 16px 40px #0000004d;z-index:10001;align-items:center;gap:.35rem;width:max-content;max-width:92vw}.mobile-dock-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;width:52px;height:42px;color:#b8a6af;border-radius:20px;background:transparent;border:none;cursor:pointer;transition:all .2s ease}.mobile-dock-btn i{font-size:1.1rem;margin-bottom:2px}.mobile-dock-btn span{font-size:.62rem;font-weight:600}.mobile-dock-btn.active{color:#fff;background:#ffffff24}.dock-drawer-overlay{display:none;position:fixed;inset:0;background:#22181c99;backdrop-filter:blur(4px);z-index:10001}.dock-drawer-overlay.active{display:block!important}.dock-drawer-card{position:fixed;bottom:20px;left:15px;right:15px;background:#fff;border:1px solid #e0d4d8;border-radius:20px;padding:1.2rem;box-shadow:0 20px 40px #22181c24;z-index:10002;max-height:70vh;overflow-y:auto;animation:drawerSlideUp .25s ease-out}@keyframes drawerSlideUp{0%{transform:translateY(100%);opacity:0}to{transform:translateY(0);opacity:1}}.dock-drawer-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:.8rem;padding-bottom:.5rem;border-bottom:1px solid #e0d4d8;font-weight:800;color:var(--sj-p, #5c1d3d)}.dock-drawer-close{background:#eee7ea;border:none;width:30px;height:30px;border-radius:50%;font-weight:700;color:#6e5f64;cursor:pointer}@media(max-width:768px){.chapter-nav-wrapper{display:none!important}.mobile-floating-dock{display:flex!important}}body.dark-mode .chapter-nav-wrapper,:root[data-theme=dark] .chapter-nav-wrapper{background:#161214f5;border-bottom:1px solid #3d3039;box-shadow:0 4px 20px #00000040}body.dark-mode .chapter-nav-title,:root[data-theme=dark] .chapter-nav-title{color:#b8a6af}body.dark-mode .nav-tab-pill,:root[data-theme=dark] .nav-tab-pill{background:#2e242b;color:#dfd3d8;border-color:#3d3039}body.dark-mode .nav-tab-pill:hover,:root[data-theme=dark] .nav-tab-pill:hover{background:#221b20;color:#e58bb3;border-color:#e58bb3}body.dark-mode .nav-tab-pill.active,:root[data-theme=dark] .nav-tab-pill.active{background:linear-gradient(135deg,#5c1d3d,#831843);color:#fff;border-color:transparent;box-shadow:0 4px 14px #e58bb340}body.dark-mode .nav-tab-pill.unit-tab,:root[data-theme=dark] .nav-tab-pill.unit-tab{background:#221b20;color:#e58bb3;border-color:#3d3039}body.dark-mode .nav-tab-pill.unit-tab:hover,:root[data-theme=dark] .nav-tab-pill.unit-tab:hover{background:#2e242b;color:#f2a8cb;border-color:#e58bb3}body.dark-mode .nav-dropdown-card,:root[data-theme=dark] .nav-dropdown-card{background:#221b20;border-color:#3d3039;box-shadow:0 16px 36px -4px #00000080,0 4px 12px -2px #00000040}body.dark-mode .nav-dropdown-item,:root[data-theme=dark] .nav-dropdown-item{color:#dfd3d8}body.dark-mode .nav-dropdown-item:hover,:root[data-theme=dark] .nav-dropdown-item:hover{background:#2e242b;color:#e58bb3}body.dark-mode .dock-drawer-card,:root[data-theme=dark] .dock-drawer-card{background:#221b20;border:1px solid #3d3039;color:#f7f1f3;box-shadow:0 20px 40px #0000008c}body.dark-mode .dock-drawer-header,:root[data-theme=dark] .dock-drawer-header{border-bottom:1px solid #3d3039;color:#e58bb3}body.dark-mode .dock-drawer-close,:root[data-theme=dark] .dock-drawer-close{background:#2e242b;color:#b8a6af}