.course-label{padding:0 .25rem;margin-bottom:.25rem}.course-label-name{font-family:var(--font-sans);font-size:.75rem;font-weight:500;color:var(--text-muted);letter-spacing:.06em;text-transform:uppercase}.course-selector{position:relative}.course-trigger{display:flex;align-items:center;justify-content:space-between;width:100%;padding:.4rem .6rem;background:transparent;border:1px solid var(--border-subtle);border-radius:var(--radius-md);cursor:pointer;font-family:var(--font-sans);font-size:.8rem;font-weight:500;color:var(--text-secondary);transition:background var(--transition),border-color var(--transition),color var(--transition);text-align:left}.course-trigger:hover,.course-trigger.open{background:var(--bg-surface);border-color:var(--border-default);color:var(--text-primary)}.course-trigger:active{background:var(--bg-toc)}.course-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}.course-chevron{flex-shrink:0;width:12px;height:12px;margin-left:.4rem;position:relative;opacity:.5;transition:transform var(--transition),opacity var(--transition)}.course-chevron:before,.course-chevron:after{content:"";position:absolute;top:50%;width:5px;height:1.5px;background:currentColor;border-radius:1px;transition:transform var(--transition)}.course-chevron:before{left:1px;transform:translateY(-50%) rotate(40deg)}.course-chevron:after{right:1px;transform:translateY(-50%) rotate(-40deg)}.course-trigger.open .course-chevron{opacity:.8}.course-trigger.open .course-chevron:before{transform:translateY(-50%) rotate(-40deg)}.course-trigger.open .course-chevron:after{transform:translateY(-50%) rotate(40deg)}.course-dropdown{position:absolute;top:calc(100% + 4px);left:0;right:0;background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:var(--radius-md);box-shadow:var(--shadow-md);padding:.25rem;z-index:150;animation:dropdown-in .12s ease}@keyframes dropdown-in{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.course-item{width:100%;padding:.42rem .6rem;background:none;border:none;border-radius:var(--radius-sm);cursor:pointer;text-align:left;font-family:var(--font-sans);font-size:.8rem;color:var(--text-secondary);transition:background var(--transition),color var(--transition);display:flex;align-items:center;gap:.5rem}.course-item:hover{background:var(--bg-toc);color:var(--text-primary)}.course-item:active{background:var(--border-subtle)}.course-item.active{color:var(--accent);background:var(--accent-surface);font-weight:500}.course-item-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.course-free-badge{flex-shrink:0;display:inline-flex;align-items:center;padding:1px 6px;font-family:var(--font-sans);font-size:.62rem;font-weight:600;letter-spacing:.04em;color:var(--color-success, #166534);background:#1665341a;border:1px solid rgba(22,101,52,.25);border-radius:var(--radius-sm);line-height:1.4}.course-label{display:flex;align-items:center;gap:.4rem}.login-page{position:fixed;inset:0;display:flex;z-index:900;opacity:0;pointer-events:none;transition:opacity .22s ease}.login-page.visible{opacity:1;pointer-events:all}.lp-brand{flex:0 0 42%;background:#4e2a0e;background-image:radial-gradient(ellipse at 30% 20%,rgba(140,80,30,.5) 0%,transparent 60%),radial-gradient(ellipse at 80% 80%,rgba(30,15,5,.4) 0%,transparent 50%);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}.lp-brand:before{content:"造";position:absolute;right:-.05em;bottom:-.15em;font-family:var(--font-serif);font-size:52vw;line-height:1;color:#ffffff08;pointer-events:none;user-select:none}.lp-brand-inner{position:relative;z-index:1;text-align:center;padding:2rem}.lp-logo-mark{display:grid;grid-template-columns:1fr 1fr;gap:5px;width:36px;height:36px;margin:0 auto 1.6rem}.lp-logo-mark span{display:block;background:#ffffffbf;border-radius:2px}.lp-logo-mark span:first-child{background:#fffffff2}.lp-logo-mark span:nth-child(2){background:#ffffff73;border-radius:50%}.lp-logo-mark span:nth-child(3){background:#ffffff73}.lp-logo-mark span:last-child{background:#ffffffbf}.lp-app-name{font-family:var(--font-serif);font-size:3rem;font-weight:700;color:#fff;letter-spacing:.18em;margin-bottom:.6rem}.lp-tagline{font-family:var(--font-sans);font-size:.82rem;color:#ffffffa6;letter-spacing:.12em;margin-bottom:2.4rem}.lp-deco-lines{display:flex;align-items:center;justify-content:center;gap:.75rem;margin-bottom:2rem}.lp-deco-lines span{display:block;width:40px;height:1px;background:#ffffff40}.lp-deco-lines em{font-style:normal;font-size:.75rem;color:#fff6}.lp-desc{font-family:var(--font-serif);font-size:.9rem;line-height:2;color:#ffffff80;letter-spacing:.08em}.lp-form-panel{flex:1;background:var(--bg-page);display:flex;align-items:center;justify-content:center;position:relative;padding:2rem}.lp-skip-btn{position:absolute;top:1.75rem;right:1.75rem;display:flex;align-items:center;gap:.35rem;background:none;border:none;font-family:var(--font-sans);font-size:.82rem;color:var(--text-muted);cursor:pointer;padding:.4rem .6rem;border-radius:var(--radius-md);transition:background var(--transition),color var(--transition)}.lp-skip-btn svg{width:14px;height:14px;transition:transform var(--transition)}.lp-skip-btn:hover{background:var(--bg-toc);color:var(--text-secondary)}.lp-skip-btn:hover svg{transform:translate(2px)}.lp-card{width:100%;max-width:360px}.lp-card-header{margin-bottom:2rem}.lp-title{font-family:var(--font-serif);font-size:1.6rem;font-weight:600;color:var(--text-primary);letter-spacing:.04em;margin-bottom:.4rem}.lp-subtitle{font-family:var(--font-sans);font-size:.82rem;color:var(--text-muted);line-height:1.5}.lp-fields{display:flex;flex-direction:column;gap:1rem;margin-bottom:1.25rem}.lp-field{display:flex;flex-direction:column;gap:.4rem}.lp-label{font-family:var(--font-sans);font-size:.78rem;font-weight:500;color:var(--text-secondary);letter-spacing:.04em}.lp-input-wrap{display:flex;align-items:center;border:1.5px solid var(--border-default);border-radius:var(--radius-md);background:var(--bg-elevated);transition:border-color var(--transition),box-shadow var(--transition);overflow:hidden}.lp-input-wrap:focus-within:not(.filled){border-color:var(--accent);box-shadow:0 0 0 3px #7c4a1e1a}.lp-input-wrap.filled{background:var(--bg-surface);border-color:var(--border-subtle)}.lp-prefix{padding:0 .75rem 0 .85rem;font-family:var(--font-sans);font-size:.88rem;color:var(--text-muted);border-right:1px solid var(--border-subtle);white-space:nowrap;user-select:none}.lp-input-wrap input{flex:1;padding:.72rem .85rem;border:none;background:transparent;font-family:var(--font-sans);font-size:.95rem;color:var(--text-primary);outline:none;min-width:0}.lp-input-wrap input::placeholder{color:var(--text-muted)}.lp-input-wrap input.readonly{color:var(--text-secondary);cursor:default}.lp-change-btn{padding:0 .85rem;background:none;border:none;border-left:1px solid var(--border-subtle);font-family:var(--font-sans);font-size:.8rem;color:var(--accent);cursor:pointer;white-space:nowrap;height:100%;min-height:42px;transition:background var(--transition)}.lp-change-btn:hover{background:var(--accent-surface)}.lp-code-wrap{display:flex;gap:.6rem}.lp-code-wrap input{flex:1;padding:.72rem .85rem;border:1.5px solid var(--border-default);border-radius:var(--radius-md);background:var(--bg-elevated);font-family:var(--font-sans);font-size:1.1rem;letter-spacing:.2em;color:var(--text-primary);outline:none;transition:border-color var(--transition),box-shadow var(--transition)}.lp-code-wrap input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #7c4a1e1a}.lp-code-wrap input::placeholder{letter-spacing:0;color:var(--text-muted);font-size:.88rem}.lp-resend-btn{flex-shrink:0;padding:0 1rem;background:var(--bg-surface);border:1.5px solid var(--border-default);border-radius:var(--radius-md);font-family:var(--font-sans);font-size:.8rem;color:var(--text-secondary);cursor:pointer;white-space:nowrap;transition:background var(--transition),color var(--transition),border-color var(--transition)}.lp-resend-btn:hover:not(:disabled){background:var(--bg-toc);color:var(--accent);border-color:var(--accent)}.lp-resend-btn:disabled{color:var(--text-muted);cursor:not-allowed}.lp-error{display:flex;align-items:center;gap:.4rem;padding:.6rem .8rem;background:#fef2f2;border:1px solid #fecaca;border-radius:var(--radius-md);font-family:var(--font-sans);font-size:.82rem;color:var(--color-error);margin-bottom:1rem}.lp-error svg{width:14px;height:14px;flex-shrink:0}.lp-submit-btn{width:100%;padding:.85rem;background:var(--accent);color:var(--text-on-accent);border:none;border-radius:var(--radius-md);font-family:var(--font-sans);font-size:.95rem;font-weight:500;letter-spacing:.05em;cursor:pointer;margin-bottom:1.25rem;transition:background var(--transition),opacity var(--transition),transform .1s ease}.lp-submit-btn:hover:not(:disabled){background:var(--accent-hover)}.lp-submit-btn:active:not(:disabled){transform:scale(.99)}.lp-submit-btn:disabled{opacity:.45;cursor:not-allowed}.lp-agreement{font-family:var(--font-sans);font-size:.76rem;color:var(--text-muted);text-align:center;line-height:1.6}.lp-agreement a{color:var(--text-secondary);text-decoration:none;transition:color var(--transition)}.lp-agreement a:hover{color:var(--accent)}.lp-footer{margin-top:1.5rem;padding-top:1rem;border-top:1px solid var(--border-subtle);text-align:center}.lp-footer p{font-family:var(--font-sans);font-size:.72rem;color:var(--text-muted);line-height:1.8;margin-bottom:0}.lp-footer a{color:var(--text-muted);text-decoration:none;transition:color var(--transition)}.lp-footer a:hover{color:var(--accent)}@media(max-width:680px){.lp-brand{display:none}.lp-form-panel{padding:5rem 1.5rem 1.5rem;align-items:flex-start}.lp-card{max-width:100%}.lp-title{font-size:1.4rem}}.pm-overlay{position:fixed;inset:0;background:#1c140a73;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);display:flex;align-items:center;justify-content:center;z-index:1000;animation:overlay-in .15s ease}@keyframes overlay-in{0%{opacity:0}to{opacity:1}}.pm-modal{background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);width:90%;max-width:440px;max-height:88vh;display:flex;flex-direction:column;position:relative;box-shadow:var(--shadow-lg);animation:modal-in .18s ease;overflow:hidden}@keyframes modal-in{0%{opacity:0;transform:translateY(8px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.pm-close{position:absolute;top:.85rem;right:.85rem;width:28px;height:28px;display:flex;align-items:center;justify-content:center;background:none;border:none;border-radius:var(--radius-sm);font-size:1.2rem;line-height:1;color:var(--text-muted);cursor:pointer;transition:background var(--transition),color var(--transition);z-index:1}.pm-close:hover{background:var(--bg-toc);color:var(--text-secondary)}.pm-header{display:flex;align-items:center;gap:1rem;padding:1.5rem 1.5rem 1.25rem;flex-shrink:0}.pm-avatar-wrap{flex-shrink:0;position:relative;cursor:pointer;border-radius:50%}.pm-avatar{width:64px;height:64px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:var(--font-sans);font-size:1rem;font-weight:700;letter-spacing:-.02em;color:#fff;user-select:none;transition:filter .15s ease}.pm-avatar-img{width:64px;height:64px;border-radius:50%;object-fit:cover;display:block}.pm-avatar-overlay{position:absolute;inset:0;border-radius:50%;background:#00000073;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .15s ease;color:#fff}.pm-avatar-overlay svg{width:22px;height:22px}.pm-avatar-wrap:hover .pm-avatar-overlay{opacity:1}.pm-upload-err{font-family:var(--font-sans);font-size:.75rem;color:var(--color-error);margin-top:.35rem;padding:0 .5rem}.pm-identity{display:flex;flex-direction:column;gap:.2rem;min-width:0;flex:1}.pm-nick-row{display:flex;align-items:center;gap:.4rem}.pm-nick-name{font-family:var(--font-serif);font-size:1.1rem;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:200px}.pm-nick-placeholder{color:var(--text-muted);font-weight:400;font-size:.9rem}.pm-nick-edit-btn{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:.2rem;border-radius:var(--radius-sm);display:flex;align-items:center;flex-shrink:0;transition:background var(--transition),color var(--transition)}.pm-nick-edit-btn svg{width:13px;height:13px}.pm-nick-edit-btn:hover{background:var(--bg-toc);color:var(--accent)}.pm-nick-edit{display:flex;align-items:center;gap:.4rem}.pm-nick-input{flex:1;font-family:var(--font-serif);font-size:1rem;color:var(--text-primary);border:none;border-bottom:1.5px solid var(--accent);background:transparent;outline:none;padding:.1rem 0;min-width:0;max-width:180px}.pm-nick-confirm{background:none;border:none;color:var(--accent);font-size:1rem;cursor:pointer;padding:.2rem .3rem;border-radius:var(--radius-sm);transition:background var(--transition)}.pm-nick-confirm:hover{background:var(--accent-surface)}.pm-phone{font-family:var(--font-sans);font-size:.82rem;color:var(--text-muted)}.pm-join{font-family:var(--font-sans);font-size:.76rem;color:var(--text-muted)}.pm-stats{display:flex;align-items:center;padding:0 1.5rem 1.25rem;gap:0;flex-shrink:0}.pm-stat{flex:1;display:flex;flex-direction:column;align-items:center;gap:.2rem}.pm-stat-val{font-family:var(--font-sans);font-size:1.2rem;font-weight:700;color:var(--text-primary);font-variant-numeric:tabular-nums;line-height:1}.pm-stat-key{font-family:var(--font-sans);font-size:.72rem;color:var(--text-muted);white-space:nowrap}.pm-stat-divider{width:1px;height:28px;background:var(--border-subtle);flex-shrink:0}.pm-section{padding:.9rem 1.5rem;border-top:1px solid var(--border-subtle);flex-shrink:0}.pm-section-title{font-family:var(--font-sans);font-size:.72rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);margin-bottom:.65rem;display:flex;align-items:center;gap:.5rem}.pm-tx-count{font-size:.7rem;font-weight:400;letter-spacing:0;text-transform:none;color:var(--text-muted)}.pm-tx-section{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden;padding-bottom:0}.pm-tx-scroll{flex:1;min-height:0;overflow-y:auto;scrollbar-width:thin;scrollbar-color:var(--border-default) transparent;margin-right:-.25rem;padding-right:.25rem}.pm-tx-empty{font-family:var(--font-sans);font-size:.82rem;color:var(--text-muted);text-align:center;padding:2rem 0}.pm-tx-row{display:flex;align-items:center;gap:.6rem;padding:.55rem 0;border-bottom:1px solid var(--border-subtle);font-family:var(--font-sans)}.pm-tx-row:last-of-type{border-bottom:none}.pm-tx-dot{flex-shrink:0;width:7px;height:7px;border-radius:50%}.pm-tx-dot.plus{background:#16a34a}.pm-tx-dot.minus{background:var(--accent)}.pm-tx-label{flex:1;font-size:.82rem;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}.pm-tx-delta{font-size:.85rem;font-weight:600;font-variant-numeric:tabular-nums;flex-shrink:0;min-width:3rem;text-align:right}.pm-tx-delta.plus{color:#16a34a}.pm-tx-delta.minus{color:var(--accent)}.pm-tx-date{font-size:.72rem;color:var(--text-muted);white-space:nowrap;flex-shrink:0}.pm-load-more{display:block;width:100%;padding:.65rem;margin-top:.25rem;background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-md);font-family:var(--font-sans);font-size:.8rem;color:var(--text-secondary);cursor:pointer;transition:background var(--transition),color var(--transition);text-align:center}.pm-load-more:hover:not(:disabled){background:var(--bg-toc);color:var(--accent)}.pm-tx-end{font-family:var(--font-sans);font-size:.72rem;color:var(--text-muted);text-align:center;padding:.75rem 0 .5rem}.pm-logout-btn{flex-shrink:0;margin:0;padding:.9rem 1.5rem;background:none;border:none;border-top:1px solid var(--border-subtle);font-family:var(--font-sans);font-size:.85rem;font-weight:500;color:var(--color-error);cursor:pointer;text-align:center;width:100%;transition:background var(--transition);letter-spacing:.02em}.pm-logout-btn:hover{background:#fef2f2}.pm-stat-clickable{cursor:pointer;border-radius:var(--radius-md);transition:background var(--transition)}.pm-stat-clickable:hover{background:var(--bg-toc)}.pm-stat-recharge-hint{font-size:.65rem;color:var(--accent);margin-left:.2rem}.pm-recharge-panel{position:absolute;bottom:0;left:0;right:0;background:var(--bg-elevated);border-top:1px solid var(--border-subtle);border-radius:0 0 var(--radius-xl) var(--radius-xl);padding:1rem 1.5rem 1.25rem;animation:panel-up .18s ease}@keyframes panel-up{0%{transform:translateY(100%);opacity:0}to{transform:translateY(0);opacity:1}}.pm-recharge-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:.9rem;font-family:var(--font-sans);font-size:.85rem;font-weight:600;color:var(--text-primary)}.pm-recharge-close{background:none;border:none;font-size:1.1rem;color:var(--text-muted);cursor:pointer;padding:0 .25rem;line-height:1;border-radius:var(--radius-sm);transition:background var(--transition),color var(--transition)}.pm-recharge-close:hover{background:var(--bg-toc);color:var(--text-primary)}.pm-recharge-grid{display:grid;grid-template-columns:1fr 1fr;gap:.6rem}.pm-recharge-pkg{position:relative;display:flex;flex-direction:column;align-items:center;gap:.2rem;padding:.75rem .5rem;background:var(--bg-surface);border:1.5px solid var(--border-subtle);border-radius:var(--radius-lg);cursor:pointer;transition:border-color var(--transition),background var(--transition);font-family:var(--font-sans)}.pm-recharge-pkg:hover:not(:disabled){border-color:var(--accent);background:var(--accent-surface)}.pm-recharge-pkg:disabled{opacity:.5;cursor:not-allowed}.pm-recharge-badge{position:absolute;top:-8px;right:-8px;background:var(--accent);color:#fff;font-size:.6rem;font-weight:700;padding:.15rem .4rem;border-radius:99px;letter-spacing:.03em}.pm-recharge-points{font-size:.9rem;font-weight:700;color:var(--text-primary)}.pm-recharge-price{font-size:.78rem;color:var(--text-muted)}.pm-recharge-status{display:flex;flex-direction:column;align-items:center;gap:.5rem;padding:1.5rem 0;font-family:var(--font-sans);font-size:.85rem;color:var(--text-primary)}.pm-recharge-spinner{width:32px;height:32px;border:3px solid var(--border-subtle);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.pm-recharge-order{font-size:.72rem;color:var(--text-muted);font-variant-numeric:tabular-nums}.pm-recharge-cancel-btn{margin-top:.5rem;background:none;border:1px solid var(--border-default);border-radius:var(--radius-md);font-family:var(--font-sans);font-size:.8rem;color:var(--text-secondary);cursor:pointer;padding:.4rem 1.2rem;transition:background var(--transition)}.pm-recharge-cancel-btn:hover{background:var(--bg-toc)}.pm-recharge-check{font-size:2rem;color:#16a34a;margin-bottom:.25rem}.pm-recharge-done-btn{margin-top:.5rem;background:var(--accent);border:none;border-radius:var(--radius-md);font-family:var(--font-sans);font-size:.85rem;font-weight:500;color:#fff;cursor:pointer;padding:.5rem 2rem;transition:opacity var(--transition)}.pm-recharge-done-btn:hover{opacity:.85}.pm-badge-list{display:flex;flex-wrap:wrap;gap:.4rem}.pm-badge-chip{display:inline-flex;align-items:center;gap:.25rem;padding:.25rem .7rem;background:var(--accent-surface);color:var(--accent);border-radius:99px;font-family:var(--font-sans);font-size:.78rem;font-weight:500;cursor:default}.admin-page{position:fixed;inset:0;display:flex;background:var(--bg-page);z-index:500;animation:admin-in .18s ease}@keyframes admin-in{0%{opacity:0}to{opacity:1}}.admin-sidebar{width:220px;flex-shrink:0;background:var(--bg-toc);border-right:1px solid var(--border-subtle);overflow:hidden}.admin-sidebar-inner{width:100%;height:100%;overflow-y:auto;padding:1.5rem 1rem 5rem;scrollbar-width:thin;scrollbar-color:var(--border-default) transparent}.admin-sidebar-header{margin-bottom:1.25rem;padding-bottom:1rem;border-bottom:1px solid var(--border-subtle)}.admin-sidebar-header h1{font-size:1.1rem;font-weight:700;color:var(--accent);letter-spacing:.15em}.admin-subtitle{font-size:.72rem;color:var(--text-muted);margin-top:.2rem;font-family:var(--font-sans);letter-spacing:.04em}.admin-nav{display:flex;flex-direction:column;gap:.1rem}.admin-nav-item{display:flex;align-items:center;width:100%;padding:.45rem .6rem;background:none;border:none;border-radius:var(--radius-sm);font-family:var(--font-sans);font-size:.85rem;font-weight:500;color:var(--text-secondary);cursor:pointer;text-align:left;transition:background var(--transition),color var(--transition)}.admin-nav-item:hover{background:#7c4a1e12;color:var(--text-primary)}.admin-nav-item.active{background:var(--accent-surface);color:var(--accent);font-weight:600}.admin-back-area{position:fixed;left:1rem;bottom:1.25rem;z-index:600}.admin-back-btn{display:flex;align-items:center;gap:.4rem;padding:.4rem .6rem;background:transparent;border:1px solid var(--border-subtle);border-radius:var(--radius-md);cursor:pointer;font-family:var(--font-sans);font-size:.8rem;font-weight:500;color:var(--text-secondary);transition:background var(--transition),border-color var(--transition),color var(--transition);white-space:nowrap}.admin-back-btn:hover{background:var(--bg-surface);border-color:var(--border-default);color:var(--text-primary)}.admin-back-btn:active{background:var(--bg-toc)}.admin-back-avatar{flex-shrink:0;width:22px;height:22px;border-radius:50%;background:var(--accent-surface);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700;line-height:1}.admin-content{flex:1;overflow-y:auto;background:var(--bg-surface);padding:3rem 2.5rem 5rem;scrollbar-width:thin;scrollbar-color:var(--border-default) transparent}.admin-content::-webkit-scrollbar{width:6px}.admin-content::-webkit-scrollbar-track{background:transparent}.admin-content::-webkit-scrollbar-thumb{background:var(--border-default);border-radius:3px}.admin-section{max-width:860px}.section-title{font-size:1.1rem;font-weight:700;color:var(--text-primary);margin-bottom:.3rem}.section-desc{font-family:var(--font-sans);font-size:.8rem;color:var(--text-muted);margin-bottom:1.75rem}.course-list{display:flex;flex-direction:column;gap:.75rem}.course-row{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.25rem;background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:var(--radius-md);gap:1rem}.course-info{display:flex;flex-direction:column;gap:.15rem;min-width:0}.course-name{font-family:var(--font-sans);font-size:.9rem;font-weight:600;color:var(--text-primary)}.course-id{font-size:.72rem;color:var(--text-muted);font-family:monospace}.course-points-ctrl{display:flex;align-items:center;gap:.5rem;flex-shrink:0}.points-label{font-family:var(--font-sans);font-size:.8rem;color:var(--text-secondary);white-space:nowrap}.points-input{width:72px;padding:.35rem .5rem;border:1px solid var(--border-default);border-radius:var(--radius-md);font-family:var(--font-sans);font-size:.85rem;color:var(--text-primary);background:var(--bg-elevated);text-align:center;transition:border-color var(--transition)}.points-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #7c4a1e1a}.save-btn{padding:.35rem .85rem;background:var(--accent);color:#fff;border:none;border-radius:var(--radius-md);font-family:var(--font-sans);font-size:.82rem;font-weight:500;cursor:pointer;white-space:nowrap;transition:background var(--transition),opacity var(--transition)}.save-btn:hover:not(:disabled){background:var(--accent-hover)}.save-btn:disabled{opacity:.5;cursor:not-allowed}.course-save-bar{position:sticky;bottom:0;margin-top:1.25rem;padding:.85rem 1.25rem;background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:space-between;gap:1rem;box-shadow:var(--shadow-sm)}.save-bar-status{font-family:var(--font-sans);font-size:.82rem;color:var(--text-muted)}.course-row.dirty{border-color:var(--accent-light);background:var(--accent-surface)}.dirty-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;flex-shrink:0}.loading-text{font-family:var(--font-sans);font-size:.85rem;color:var(--text-muted);padding:4rem 0;text-align:center}.user-table{width:100%;border-collapse:collapse;font-family:var(--font-sans);font-size:.83rem;background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:var(--radius-md);overflow:hidden}.user-table th{text-align:left;padding:.6rem 1rem;color:var(--text-muted);font-weight:500;font-size:.78rem;background:var(--bg-toc);border-bottom:1px solid var(--border-subtle);white-space:nowrap}.user-table td{padding:.7rem 1rem;border-bottom:1px solid var(--border-subtle);color:var(--text-primary);vertical-align:middle}.user-table tbody tr:last-child td{border-bottom:none}.user-table tbody tr:hover td{background:var(--bg-surface)}.row-banned td{opacity:.55}.td-phone{font-family:monospace;font-size:.82rem}.td-points{font-weight:600;color:var(--accent)}.td-date{color:var(--text-muted);font-size:.78rem}.badge{display:inline-block;padding:.15rem .55rem;border-radius:99px;font-size:.72rem;font-weight:500}.badge.admin{background:var(--accent-surface);color:var(--accent)}.badge.user{background:var(--bg-surface);color:var(--text-muted)}.badge.banned{background:#fef2f2;color:var(--color-error)}.td-actions{display:flex;gap:.3rem;flex-wrap:wrap}.adj-btn{padding:.22rem .5rem;border:1px solid var(--border-default);border-radius:var(--radius-sm);background:var(--bg-elevated);font-family:var(--font-sans);font-size:.75rem;color:var(--text-secondary);cursor:pointer;transition:all var(--transition);white-space:nowrap}.adj-btn:hover:not(:disabled){background:var(--bg-toc);color:var(--text-primary)}.adj-btn.plus:hover:not(:disabled){background:var(--accent-surface);color:var(--accent);border-color:#7c4a1e4d}.adj-btn.sub-toggle{color:var(--text-muted)}.adj-btn.sub-toggle.active,.adj-btn.sub-toggle:hover:not(:disabled){background:var(--bg-toc);color:var(--text-primary);border-color:var(--border-default)}.adj-btn.ban-btn{color:var(--color-error);border-color:#fca5a5}.adj-btn.ban-btn:hover:not(:disabled){background:#fef2f2;border-color:#f87171}.adj-btn.ban-btn.unban{color:#15803d;border-color:#86efac}.adj-btn.ban-btn.unban:hover:not(:disabled){background:#f0fdf4;border-color:#4ade80}.adj-btn.del-btn{color:#6b7280}.adj-btn.del-btn:hover:not(:disabled){background:#111827;color:#f9fafb;border-color:#111827}.adj-btn:disabled{opacity:.4;cursor:not-allowed}.detail-row td{padding:0}.detail-panel{display:grid;grid-template-columns:repeat(3,1fr);background:var(--bg-surface);border-top:1px solid var(--border-subtle)}.detail-block{padding:1rem 1.25rem;border-right:1px solid var(--border-subtle)}.detail-block:last-child{border-right:none}.detail-block-title{font-family:var(--font-sans);font-size:.7rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--text-muted);margin-bottom:.65rem}.detail-empty{font-family:var(--font-sans);font-size:.8rem;color:var(--text-muted)}.unlock-item{display:flex;align-items:center;gap:.6rem;padding:.35rem 0;border-bottom:1px solid var(--border-subtle)}.unlock-item:last-child{border-bottom:none}.unlock-course{font-family:var(--font-sans);font-size:.82rem;font-weight:500;color:var(--text-primary);flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.unlock-meta{display:flex;align-items:center;gap:.4rem;font-size:.73rem;color:var(--text-muted);font-family:var(--font-sans);flex-shrink:0}.unlock-date{font-size:.7rem}.revoke-btn{padding:.18rem .5rem;border:1px solid #fca5a5;border-radius:var(--radius-sm);background:#fef2f2;font-family:var(--font-sans);font-size:.72rem;color:var(--color-error);cursor:pointer;white-space:nowrap;transition:all var(--transition);flex-shrink:0}.revoke-btn:hover:not(:disabled){background:#fee2e2;border-color:#f87171}.revoke-btn:disabled{opacity:.5;cursor:not-allowed}.progress-item{display:flex;align-items:center;gap:.6rem;padding:.35rem 0;border-bottom:1px solid var(--border-subtle)}.progress-item:last-child{border-bottom:none}.progress-course{font-family:var(--font-sans);font-size:.82rem;color:var(--text-primary);min-width:52px;flex-shrink:0}.progress-bar-wrap{flex:1;height:4px;background:var(--border-subtle);border-radius:99px;overflow:hidden}.progress-bar-fill{height:100%;background:var(--accent);border-radius:99px;transition:width .4s ease}.progress-count{font-family:var(--font-sans);font-size:.73rem;color:var(--text-muted);flex-shrink:0;min-width:44px;text-align:right}.badge-list{display:flex;flex-wrap:wrap;gap:.4rem}.stats-cards{display:flex;gap:1rem;margin-bottom:1.75rem}.stat-card{flex:1;display:flex;flex-direction:column;align-items:center;padding:1.1rem 1rem;background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:var(--radius-md);gap:.2rem}.stat-label{font-family:var(--font-sans);font-size:.75rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--text-muted)}.stat-value{font-size:1.75rem;font-weight:700;color:var(--accent);line-height:1.2}.stat-sub{font-family:monospace;font-size:.7rem;color:var(--text-muted)}.log-table{width:100%;border-collapse:collapse;font-family:var(--font-sans);font-size:.83rem;background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:var(--radius-md);overflow:hidden}.log-table th{text-align:left;padding:.6rem 1rem;color:var(--text-muted);font-weight:500;font-size:.78rem;background:var(--bg-toc);border-bottom:1px solid var(--border-subtle);white-space:nowrap}.log-table td{padding:.7rem 1rem;border-bottom:1px solid var(--border-subtle);color:var(--text-primary);vertical-align:middle}.log-table tbody tr:last-child td{border-bottom:none}.log-table tbody tr:hover td{background:var(--bg-surface)}.badge.login-badge{background:#dcfce7;color:#15803d}.badge.logout-badge{background:var(--bg-surface);color:var(--text-muted)}.badge.anon-badge{background:#fef3c7;color:#92400e}.anon-label{color:var(--text-muted);font-size:.8rem}.log-path{display:block;font-size:.75rem;color:var(--text-muted);margin-top:2px;word-break:break-all}.anon-toggle{margin-bottom:1rem;font-size:.85rem;color:var(--text-secondary)}.anon-toggle input{margin-right:6px}.loading-text{text-align:center;color:var(--text-muted);padding:2rem}.pm-load-more{display:block;margin:1.5rem auto 0;padding:.5rem 1.5rem;background:var(--bg-elevated);border:1px solid var(--border-default);border-radius:var(--radius-md);font-family:var(--font-sans);font-size:.82rem;color:var(--text-secondary);cursor:pointer;transition:all var(--transition)}.pm-load-more:hover:not(:disabled){background:var(--bg-toc);color:var(--text-primary)}.pm-load-more:disabled{opacity:.5;cursor:not-allowed}.user-selector{position:relative}.user-trigger{display:flex;align-items:center;gap:.4rem;padding:.4rem .6rem;background:transparent;border:1px solid var(--border-subtle);border-radius:var(--radius-md);cursor:pointer;font-family:var(--font-sans);font-size:.8rem;font-weight:500;color:var(--text-secondary);transition:background var(--transition),border-color var(--transition),color var(--transition);white-space:nowrap}.user-trigger:hover,.user-trigger.open{background:var(--bg-surface);border-color:var(--border-default);color:var(--text-primary)}.user-trigger:active{background:var(--bg-toc)}.user-trigger.login{background:var(--accent);border-color:transparent;color:var(--text-on-accent);padding:.4rem .85rem;letter-spacing:.04em}.user-trigger.login:hover{background:var(--accent-hover);border-color:transparent;color:var(--text-on-accent)}.ua-mini-avatar{flex-shrink:0;width:22px;height:22px;border-radius:50%;overflow:hidden;display:flex;align-items:center;justify-content:center}.ua-mini-avatar img{width:100%;height:100%;object-fit:cover;display:block;border-radius:50%}.ua-mini-avatar>span{display:flex;align-items:center;justify-content:center;width:100%;height:100%;font-size:.5rem;font-weight:700;font-family:var(--font-sans);letter-spacing:-.03em;color:#fff;user-select:none;border-radius:50%}.user-trigger-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}.user-chevron{flex-shrink:0;width:12px;height:12px;margin-left:.2rem;position:relative;opacity:.5;transition:transform var(--transition),opacity var(--transition)}.user-chevron:before,.user-chevron:after{content:"";position:absolute;top:50%;width:5px;height:1.5px;background:currentColor;border-radius:1px;transition:transform var(--transition)}.user-chevron:before{left:1px;transform:translateY(-50%) rotate(40deg)}.user-chevron:after{right:1px;transform:translateY(-50%) rotate(-40deg)}.user-trigger.open .user-chevron{opacity:.8}.user-trigger.open .user-chevron:before{transform:translateY(-50%) rotate(-40deg)}.user-trigger.open .user-chevron:after{transform:translateY(-50%) rotate(40deg)}.user-dropdown{position:absolute;bottom:calc(100% + 4px);left:0;min-width:100%;background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:var(--radius-md);box-shadow:var(--shadow-md);padding:.25rem;z-index:150;animation:dropdown-in .12s ease}@keyframes dropdown-in{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.user-item{display:block;width:100%;padding:.42rem .6rem;background:none;border:none;border-radius:var(--radius-sm);cursor:pointer;text-align:left;font-family:var(--font-sans);font-size:.8rem;color:var(--text-secondary);transition:background var(--transition),color var(--transition);white-space:nowrap}.user-item:hover{background:var(--bg-toc);color:var(--text-primary)}.user-item:active{background:var(--border-subtle)}.user-divider{height:1px;background:var(--border-subtle);margin:.25rem}.user-item.danger{color:var(--text-muted)}.user-item.danger:hover{background:#fdf0ee;color:#9b3a2a}.user-item.danger:active{background:#f9e0db}.eb-boundary{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--bg-page)}.eb-card{text-align:center;background:var(--bg-surface);border-radius:var(--radius-lg);padding:48px 40px;box-shadow:var(--shadow-md);max-width:380px}.eb-title{margin:0 0 12px;font-size:20px;color:var(--text-primary)}.eb-desc{margin:0 0 24px;font-size:14px;color:var(--text-secondary);line-height:1.6}.eb-reload-btn{display:inline-flex;align-items:center;padding:8px 24px;border:none;border-radius:var(--radius-sm);background:var(--accent);color:var(--text-on-accent);font-size:14px;cursor:pointer}.eb-reload-btn:hover{background:var(--accent-hover)}:root{--bg-page: #fdfcf8;--bg-surface: #f7f3eb;--bg-toc: #f0e9dd;--bg-elevated: #ffffff;--text-primary: #1c1714;--text-secondary: #5c5349;--text-muted: #9e9389;--text-on-accent: #ffffff;--accent: #7c4a1e;--accent-hover: #6a3d17;--accent-light: #b8894a;--accent-surface: #fef3e2;--border-subtle: #e8dfd0;--border-default: #d4c9b8;--border-strong: #b8a99a;--shadow-sm: 0 1px 4px rgba(28, 20, 10, .06);--shadow-md: 0 4px 16px rgba(28, 20, 10, .1);--shadow-lg: 0 12px 40px rgba(28, 20, 10, .14);--color-error: #b91c1c;--color-success: #166534;--font-serif: "Noto Serif SC", "Source Han Serif CN", "仿宋", Georgia, serif;--font-sans: "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--transition: .18s ease;--handle-w: 5px}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html,body,#root{height:100%}body{font-family:var(--font-serif);background:var(--bg-page);color:var(--text-primary);line-height:1.8;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app{display:flex;height:100vh;overflow:hidden;position:relative}.toc-panel{flex-shrink:0;background:var(--bg-toc);border-right:1px solid var(--border-subtle);overflow:hidden;transition:width var(--transition)}.toc-panel.collapsed{width:0!important;border-right:none}.toc{width:100%;height:100%;overflow-y:auto;padding:1.5rem 1rem 5rem;scrollbar-width:thin;scrollbar-color:var(--border-default) transparent}.toc::-webkit-scrollbar{width:4px}.toc::-webkit-scrollbar-track{background:transparent}.toc::-webkit-scrollbar-thumb{background:var(--border-default);border-radius:2px}.toc-panel.collapsed .toc{display:none}.toc-header{margin-bottom:1.25rem;padding-bottom:1rem;border-bottom:1px solid var(--border-subtle)}.toc-header h1{font-size:1.1rem;font-weight:700;color:var(--accent);letter-spacing:.15em}.toc-header .subtitle{font-size:.72rem;color:var(--text-muted);margin-top:.2rem;font-family:var(--font-sans);letter-spacing:.04em}.toc-course-selector{margin-bottom:1rem}.toc-list{list-style:none}.toc-chapter{margin-bottom:.125rem}.toc-chapter-title{width:100%;text-align:left;background:none;border:none;padding:.45rem .5rem;font-family:var(--font-sans);font-size:.82rem;font-weight:600;color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;gap:.4rem;border-radius:var(--radius-sm);transition:background var(--transition),color var(--transition);letter-spacing:.01em}.toc-chapter-title:hover{background:#7c4a1e12;color:var(--accent)}.toc-chapter-title.expanded{color:var(--accent)}.toc-chapter-title .arrow{font-size:.55rem;color:var(--text-muted);width:.8rem;flex-shrink:0;transition:color var(--transition)}.toc-chapter-title:hover .arrow,.toc-chapter-title.expanded .arrow{color:var(--accent-light)}.toc-pages{list-style:none;margin:.125rem 0 .25rem .9rem;border-left:1px solid var(--border-subtle);padding-left:.6rem}.toc-page{width:100%;text-align:left;background:none;border:none;padding:.3rem .5rem;font-family:var(--font-sans);font-size:.77rem;color:var(--text-muted);cursor:pointer;border-radius:var(--radius-sm);transition:background var(--transition),color var(--transition);line-height:1.5}.toc-page:hover{color:var(--accent);background:#7c4a1e0f}.toc-page.active{color:var(--accent);background:var(--accent-surface);font-weight:500}.toc-toggle-btn{position:fixed;top:50%;transform:translateY(-50%);width:18px;height:48px;background:var(--bg-toc);border:1px solid var(--border-subtle);border-left:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:.65rem;color:var(--text-muted);z-index:15;transition:left var(--transition),background var(--transition),color var(--transition);border-radius:0 var(--radius-sm) var(--radius-sm) 0}.toc-toggle-btn:hover{background:var(--accent-surface);color:var(--accent);border-color:var(--border-default)}.resize-handle{position:absolute;top:0;width:var(--handle-w);height:100%;cursor:col-resize;z-index:10;background:transparent;transition:background var(--transition)}.resize-handle:hover,.resize-handle:active{background:var(--accent-light);opacity:.4}.main-content{flex:1;overflow-y:auto;background:var(--bg-surface);position:relative;min-width:300px;scrollbar-width:thin;scrollbar-color:var(--border-default) transparent}.main-content::-webkit-scrollbar{width:6px}.main-content::-webkit-scrollbar-track{background:transparent}.main-content::-webkit-scrollbar-thumb{background:var(--border-default);border-radius:3px}.book-viewer{max-width:720px;margin:0 auto;padding:3rem 2.5rem 5rem}.book-viewer:not(:has(.book-content *)){display:flex;align-items:center;justify-content:center;min-height:100vh;color:var(--text-muted);font-family:var(--font-sans);font-size:.9rem}.book-content h1{font-size:1.7rem;font-weight:700;color:var(--accent);margin-bottom:1.5rem;padding-bottom:.75rem;border-bottom:1.5px solid var(--border-subtle);letter-spacing:.04em;line-height:1.4}.book-content h2{font-size:1.2rem;font-weight:600;color:var(--text-primary);margin:2rem 0 .75rem;letter-spacing:.02em;line-height:1.5}.book-content h3{font-size:1.05rem;font-weight:600;color:var(--text-secondary);margin:1.5rem 0 .5rem;letter-spacing:.01em}.book-content p{margin-bottom:1.1rem;line-height:2;text-align:justify;text-justify:inter-ideograph;color:var(--text-primary)}.book-content blockquote{border-left:2px solid var(--accent-light);padding:.75rem 1.25rem;margin:1.5rem 0;background:var(--accent-surface);border-radius:0 var(--radius-sm) var(--radius-sm) 0;font-style:italic;color:var(--text-secondary);line-height:1.9}.book-content hr{border:none;border-top:1px solid var(--border-subtle);margin:2rem 0}.book-content ul,.book-content ol{margin:.75rem 0 1.25rem 1.5rem;color:var(--text-primary)}.book-content li{margin-bottom:.4rem;line-height:1.9}.book-content strong{font-weight:600;color:var(--text-primary)}.book-content em{font-style:italic;color:var(--text-secondary)}.book-content code{font-family:JetBrains Mono,Fira Code,monospace;font-size:.85em;background:var(--bg-toc);border:1px solid var(--border-subtle);padding:.1em .4em;border-radius:var(--radius-sm);color:var(--accent)}.book-content table{width:100%;border-collapse:collapse;margin:1.25rem 0;font-family:var(--font-sans);font-size:.88rem}.book-content th{background:var(--bg-toc);font-weight:600;text-align:left;padding:.6rem .9rem;border-bottom:1px solid var(--border-default);color:var(--text-secondary)}.book-content td{padding:.55rem .9rem;border-bottom:1px solid var(--border-subtle)}.book-content tr:hover td{background:var(--accent-surface)}.media-panel{flex-shrink:0;background:var(--bg-elevated);border-left:1px solid var(--border-subtle);display:flex;flex-direction:column;overflow:hidden}.media-panel.empty{justify-content:center;align-items:center}.media-placeholder{text-align:center;color:var(--text-muted);padding:2rem}.placeholder-icon{font-size:2rem;display:block;margin-bottom:.75rem;opacity:.4}.media-placeholder p{font-family:var(--font-sans);font-size:.8rem;line-height:1.7}.media-content{flex:1;overflow:auto;display:flex;align-items:flex-start;justify-content:center;padding:1.25rem}.media-image{width:100%;display:flex;justify-content:center}.media-image img{max-width:100%;height:auto;object-fit:contain;border-radius:var(--radius-md);box-shadow:var(--shadow-sm);transition:box-shadow .2s ease}.media-image img:hover{box-shadow:var(--shadow-md)}.media-video video{max-width:100%;width:100%;border-radius:var(--radius-md);box-shadow:var(--shadow-sm)}.media-game iframe{width:100%;height:100%;min-height:420px;border:none;border-radius:var(--radius-md)}.media-audio audio{width:100%;border-radius:var(--radius-md)}.translation-content{width:100%;overflow:auto;padding:.5rem 0}.translation-text{font-family:var(--font-sans);font-size:.9rem;line-height:1.8;color:var(--text-primary);white-space:pre-wrap;word-break:break-word}.translation-text h1,.translation-text h2,.translation-text h3{color:var(--text-heading);margin:1em 0 .5em;font-weight:600}.translation-text h1{font-size:1.2rem}.translation-text h2{font-size:1.05rem}.translation-text h3{font-size:.95rem}.translation-text p{margin:.5em 0}.translation-blocks{width:100%;display:flex;flex-direction:column;gap:2px}.translation-block{display:block;width:100%;text-align:left;border:none;background:transparent;cursor:pointer;border-radius:4px;transition:background .15s;padding:6px 8px;line-height:1.5}.translation-block:hover{background:var(--bg-hover)}.translation-block.heading{background:var(--bg-surface);font-weight:600;color:var(--text-heading);margin-top:8px;border-bottom:1px solid var(--border-subtle)}.translation-block.heading:hover{background:var(--bg-elevated)}.translation-block.paragraph{color:var(--text-primary);font-size:.85rem;text-align:justify}.translation-block .block-text{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.translation-block.level-1{font-size:1rem}.translation-block.level-2{font-size:.9rem}.translation-block.level-3{font-size:.85rem}.translation-block.highlighted,.book-content p.highlighted,.book-content h1.highlighted,.book-content h2.highlighted,.book-content h3.highlighted,.book-content h4.highlighted{background:#fef3c7;animation:block-highlight 1.5s ease-out}@keyframes block-highlight{0%{background:#fde68a}to{background:transparent}}.book-viewer-wrapper{position:relative;height:100%}.outline-toggle-btn{position:fixed;top:12px;left:65%;z-index:100;width:36px;height:36px;border-radius:50%;border:1px solid var(--border-subtle);background:var(--bg-elevated);color:var(--text-primary);font-size:1rem;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm);transition:all .2s}.outline-toggle-btn:hover{background:var(--bg-surface);box-shadow:var(--shadow-md)}.outline-toggle-btn.active{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.outline-panel{position:fixed;top:56px;left:65%;z-index:99;width:280px;max-height:calc(100vh - 80px);background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:8px;box-shadow:var(--shadow-lg);overflow:hidden;display:flex;flex-direction:column}.outline-panel.pinned{top:56px}.outline-header-actions{display:flex;gap:4px}.outline-header-actions button{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:2px 6px;border-radius:4px;font-size:.9rem}.outline-header-actions button:hover{background:var(--bg-surface);color:var(--text-primary)}.pin-btn{transition:transform .2s}.pin-btn.pinned{transform:rotate(45deg)}.outline-header{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-bottom:1px solid var(--border-subtle);background:var(--bg-surface);font-weight:600;font-size:.9rem}.outline-header button{border:none;background:transparent;color:var(--text-muted);cursor:pointer;font-size:1.2rem;padding:0;line-height:1}.outline-header button:hover{color:var(--text-primary)}.outline-list{overflow-y:auto;padding:8px;flex:1}.outline-item{display:block;width:100%;text-align:left;border:none;background:transparent;color:var(--text-primary);font-size:.85rem;cursor:pointer;padding:6px 8px;border-radius:4px;transition:background .15s;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.outline-item:hover{background:var(--bg-hover)}.outline-item.level-1{font-weight:600}.outline-item.level-2{font-size:.8rem}.outline-item.level-3{font-size:.75rem;color:var(--text-secondary)}.media-topbar{flex-shrink:0;background:var(--bg-surface);border-bottom:1px solid var(--border-subtle)}.media-type-label{display:flex;align-items:center;justify-content:space-between;padding:.6rem .85rem;font-family:var(--font-sans);font-size:.78rem;font-weight:600;color:var(--text-secondary)}.media-type-count{font-weight:400;font-size:.72rem;color:var(--text-muted);background:var(--bg-elevated);padding:.15rem .5rem;border-radius:10px}.media-tabs{display:flex;gap:.35rem;padding:.6rem .85rem;flex-shrink:0;overflow-x:auto;scrollbar-width:none}.media-tabs::-webkit-scrollbar{display:none}.media-tab{display:flex;align-items:center;gap:.4rem;padding:.45rem .85rem;background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:20px;color:var(--text-secondary);font-family:var(--font-sans);font-size:.78rem;cursor:pointer;transition:all .2s ease;white-space:nowrap;flex-shrink:0}.media-tab:hover{background:var(--accent-surface);border-color:var(--accent-light);color:var(--accent)}.media-tab.active{background:var(--accent);border-color:var(--accent);color:var(--text-on-accent)}.media-tab .tab-count{font-size:.68rem;opacity:.75;background:#fff3;min-width:1.3em;height:1.3em;display:flex;align-items:center;justify-content:center;border-radius:50%;padding:0 .25rem}.media-tab.active .tab-count{background:#ffffff40}.gallery-grid{width:100%;display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1.15rem;padding:.25rem}.gallery-grid.video-gallery{grid-template-columns:1fr}.gallery-item{display:flex;flex-direction:column;gap:.6rem;background:var(--bg-surface);border-radius:var(--radius-lg);padding:.6rem;transition:box-shadow .2s ease}.gallery-item:hover{box-shadow:var(--shadow-sm)}.gallery-caption{font-family:var(--font-sans);font-size:.75rem;color:var(--text-secondary);text-align:center;padding:.25rem;background:var(--bg-surface);border-radius:var(--radius-sm)}.media-content.game-fullscreen{padding:0}.media-content.game-fullscreen .game-container{width:100%;height:100%;display:flex;flex-direction:column}.media-content.game-fullscreen .media-game{flex:1;display:flex;flex-direction:column}.media-content.game-fullscreen .media-game iframe{flex:1;min-height:100%;border-radius:0}.media-unsupported{padding:1.5rem;text-align:center;color:var(--text-muted);font-family:var(--font-sans);font-size:.85rem}.media-failed{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:2.5rem 1.5rem;color:var(--text-muted);font-family:var(--font-sans);background:var(--bg-surface);border-radius:var(--radius-lg);border:1px dashed var(--border-default);width:100%}.media-failed-icon{font-size:2rem;margin-bottom:.75rem;opacity:.5}.media-failed-title{font-size:.88rem;font-weight:600;color:var(--text-secondary);margin-bottom:.35rem}.user-area{position:fixed;left:1rem;bottom:1.25rem;z-index:100}.media-gate{justify-content:center;align-items:center}.gate-body{display:flex;flex-direction:column;align-items:center;text-align:center;padding:2rem 1.5rem;max-width:220px}.gate-icon{font-size:2rem;margin-bottom:1rem;opacity:.7;display:block}.gate-title{font-family:var(--font-sans);font-size:.95rem;font-weight:600;color:var(--text-primary);margin-bottom:.5rem}.gate-desc{font-family:var(--font-sans);font-size:.78rem;color:var(--text-muted);line-height:1.6;margin-bottom:1.25rem}.gate-points{font-family:var(--font-sans);font-size:.82rem;color:var(--text-secondary);margin-bottom:1rem}.gate-points strong{color:var(--accent)}.gate-hint{font-family:var(--font-sans);font-size:.72rem;color:var(--text-muted);margin-top:.6rem}.gate-btn{padding:.55rem 1.25rem;border-radius:var(--radius-md);font-family:var(--font-sans);font-size:.85rem;font-weight:500;cursor:pointer;border:none;transition:background var(--transition),opacity var(--transition);letter-spacing:.02em}.gate-btn.primary{background:var(--accent);color:var(--text-on-accent)}.gate-btn.primary:hover:not(:disabled){background:var(--accent-hover)}.gate-btn:disabled{opacity:.55;cursor:not-allowed}.gate-btn:not(.primary){background:var(--bg-surface);border:1px solid var(--border-default);color:var(--text-secondary)}.gate-btn:not(.primary):hover{background:var(--bg-toc);color:var(--text-primary)}.points-low{color:var(--color-error, #c0392b)!important}.gate-error{font-family:var(--font-sans);font-size:.75rem;color:var(--color-error, #c0392b);margin-top:.5rem}.mobile-menu-btn,.mobile-backdrop,.media-sheet-trigger,.media-sheet-close{display:none}@media(max-width:768px){.mobile-menu-btn{display:flex;position:fixed;top:.75rem;left:.75rem;z-index:30;width:38px;height:38px;align-items:center;justify-content:center;background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:var(--radius-md);color:var(--text-primary);font-size:1.1rem;cursor:pointer;box-shadow:var(--shadow-sm)}.mobile-backdrop{display:block;position:fixed;inset:0;background:#140e0673;z-index:40;animation:fade-in .18s ease}.toc-panel,.toc-panel.collapsed{position:fixed!important;left:0;top:0;height:100vh;width:min(280px,80vw)!important;transform:translate(-100%);transition:transform .25s ease;z-index:50;box-shadow:var(--shadow-lg);border-right:1px solid var(--border-subtle)}.toc-panel.mobile-open{transform:translate(0)}.toc-panel.collapsed .toc{display:block}.toc{padding-top:3.5rem}.resize-handle,.toc-toggle-btn{display:none!important}.main-content{min-width:0;width:100%}.book-viewer{padding:3.75rem 1rem 4rem;max-width:100%}.book-content h1{font-size:1.4rem}.book-content h2{font-size:1.1rem}.book-content p{line-height:1.85}.book-content table{display:block;overflow-x:auto;white-space:nowrap}.media-panel{position:fixed!important;inset:auto 0 0!important;width:auto!important;height:75vh!important;transform:translateY(100%);transition:transform .3s cubic-bezier(.32,.72,0,1);z-index:60;border-left:none;border-top:1px solid var(--border-subtle);border-radius:16px 16px 0 0;box-shadow:0 -8px 30px #1c140a2e;min-width:0}.media-panel.mobile-open{transform:translateY(0)}.media-panel:before{content:"";position:absolute;top:8px;left:50%;transform:translate(-50%);width:36px;height:4px;background:var(--border-default);border-radius:2px;z-index:1}.media-sheet-close{display:flex;position:absolute;top:.5rem;right:.6rem;z-index:2;width:30px;height:30px;align-items:center;justify-content:center;background:transparent;border:none;color:var(--text-muted);font-size:1.3rem;cursor:pointer;border-radius:var(--radius-sm)}.media-sheet-close:hover{background:var(--bg-toc);color:var(--text-primary)}.media-header{padding-top:1.4rem}.media-sheet-trigger{display:flex;position:fixed;bottom:1.25rem;right:1.25rem;z-index:25;width:52px;height:52px;align-items:center;justify-content:center;background:var(--accent);color:var(--text-on-accent);border:none;border-radius:50%;font-size:1.3rem;cursor:pointer;box-shadow:var(--shadow-md);transition:transform var(--transition),background var(--transition)}.media-sheet-trigger:hover,.media-sheet-trigger:active{background:var(--accent-hover);transform:scale(1.05)}.user-area{top:.75rem;right:.75rem;bottom:auto;left:auto}.user-dropdown{bottom:auto!important;top:calc(100% + 4px)!important;left:auto!important;right:0}.user-trigger-name,.user-chevron{display:none}.login-page,.pm-overlay{padding:1rem!important}}@keyframes fade-in{0%{opacity:0}to{opacity:1}}