:root{--bg: #fafafa;--surface: #fff;--text: #1d1d1f;--text2: #86868b;--accent: #B0B0B0;--border: rgba(0, 0, 0, .06);--radius: 18px;--font: -apple-system, BlinkMacSystemFont, "SF Pro Text", Helvetica, sans-serif}body.dark{--bg: #000;--surface: #0A0A0A;--text: #fff;--text2: #888;--border: #1C1C1E}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100dvh}.site-header{display:flex;position:sticky;top:0;z-index:50;height:44px;background:#ffffffe6;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);align-items:center;padding:0 10px;gap:6px}body.dark .site-header{background:#000000d9}.header-logo{display:flex;align-items:center;gap:6px;text-decoration:none;color:inherit;flex-shrink:0}.header-logo-img{height:24px;width:24px;border-radius:6px;object-fit:contain}.header-logo-text{font-size:13px;font-weight:600;color:var(--text);white-space:nowrap}.header-sp{flex:1}.header-tag{display:inline-flex;align-items:center;gap:6px;font-size:11px;color:var(--text2);background:var(--bg);padding:3px 10px;border-radius:12px;border:1px solid var(--border);white-space:nowrap;flex-shrink:0}.header-tag-logo{height:24px;width:24px;border-radius:6px;object-fit:contain}.explore-header{justify-content:flex-start;position:relative}.header-left{display:flex;align-items:center;gap:6px;position:absolute;left:10px;top:50%;transform:translateY(-50%);z-index:10}.header-right{display:flex;align-items:center;gap:6px;position:absolute;right:10px;top:50%;transform:translateY(-50%);z-index:10}.header-center{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);display:flex;flex-direction:row;align-items:center;gap:6px;white-space:nowrap}.header-subject{font-size:13px;font-weight:600;color:var(--text);white-space:nowrap}.header-subject-sep{color:var(--text2);opacity:.3;font-size:11px}.header-subject-link{display:flex;align-items:center;gap:3px;color:var(--text2);text-decoration:none;font-size:11px;white-space:nowrap}.header-subject-link:hover{color:var(--text)}.header-subject-logo{height:12px;width:12px;border-radius:3px}.header-arrow-nav{display:flex;align-items:center;gap:4px}.header-arrow-btn{width:22px;height:22px;background:var(--bg);border:1px solid var(--border);border-radius:5px;cursor:pointer;font-size:9px;display:flex;align-items:center;justify-content:center;color:var(--text)}.header-arrow-btn:disabled{opacity:.3;cursor:default}.header-arrow-label{font-size:11px;color:var(--text2);min-width:34px;text-align:center}.theme-btn{width:36px;height:36px;border-radius:50%;border:1px solid var(--border);background:transparent;color:var(--text);cursor:pointer;font-size:16px;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .2s}.theme-btn:hover{background:var(--surface);border-color:var(--text2);transform:scale(1.05)}.header-click-hint{font-size:10px;color:var(--text2);margin-left:8px;padding-left:8px;border-left:1px solid var(--border);white-space:nowrap}#homeView{min-height:100dvh;display:flex;flex-direction:column;background:var(--surface)}.home-inner{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px 24px;text-align:center}.home-hero-logo{height:40px;width:40px;border-radius:8px;margin-bottom:6px}.home-title{font-size:22px;font-weight:700;color:var(--text);line-height:1.3;margin-bottom:4px}.home-desc{font-size:13px;color:var(--text2);line-height:1.5;max-width:280px;margin-bottom:14px}.home-search{width:100%;max-width:380px;margin-bottom:6px}.home-input{width:100%;height:44px;padding:0 14px;font-size:14px;font-family:var(--font);background:var(--bg);border:1.5px solid var(--border);border-radius:14px;outline:none;color:var(--text);margin-bottom:6px}.home-input:focus{border-color:var(--accent)}.home-btn{width:100%;height:42px;background:var(--accent);color:#fff;border:none;border-radius:14px;font-size:14px;font-weight:600;cursor:pointer;box-shadow:0 2px 8px #b0b0b033}.home-section-label{font-size:11px;color:var(--text2);margin:4px 0;text-align:center}.home-examples{display:flex;gap:6px;flex-wrap:wrap;justify-content:center;margin-bottom:4px}.chip{padding:6px 12px;background:var(--bg);border:1px solid var(--border);border-radius:18px;font-size:11px;color:var(--text2);cursor:pointer}.chip:hover{background:var(--surface);border-color:var(--text2)}.history-header{display:flex;align-items:center;justify-content:center;gap:6px;position:relative;margin:4px 0}.history-clear-all{font-size:12px;cursor:pointer;opacity:.4;position:absolute;right:20px}.history-clear-all:hover{opacity:1}.history-clear-item{font-size:9px;cursor:pointer;opacity:.4;margin-left:3px}.history-clear-item:hover{opacity:1}.home-history{display:flex;gap:4px;flex-wrap:wrap;justify-content:center}#exploreView{min-height:100dvh;background:var(--bg);display:flex;flex-direction:column}.explore-body{display:flex;flex:1;min-height:0;position:relative}.sidebar{width:240px;flex-shrink:0;background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden;transition:width .25s ease}.sidebar-right{border-right:none;border-left:1px solid var(--border)}.sidebar.collapsed{width:40px!important;min-width:40px!important}.sidebar.collapsed .thumbnail-list,.sidebar.collapsed .caption-content,.sidebar.collapsed .sidebar-label{display:none!important}.sidebar-header-flex{display:flex;align-items:center;height:32px;flex-shrink:0;border-bottom:1px solid var(--border);padding:0 4px;background:var(--surface);overflow:hidden}.side-fold-btn{width:100%;height:100%;flex:1;display:flex;align-items:center;justify-content:center;background:transparent;border:none;cursor:pointer;font-size:12px;font-weight:600;color:var(--text);white-space:nowrap;gap:4px}.side-fold-btn:hover{background:var(--border)}.hidden{display:none!important}.thumbnail-list{flex:1;overflow-y:auto;padding:6px;display:flex;flex-direction:column;gap:3px}.thumbnail-item{display:flex;align-items:center;gap:5px;padding:5px;border-radius:7px;cursor:pointer;border:2px solid transparent}.thumbnail-item.active{border-color:var(--accent)}.thumbnail-item img{width:40px;height:30px;object-fit:cover;border-radius:4px}.thumbnail-info .thumb-title{font-size:10px;font-weight:500;color:var(--text)}.thumbnail-info .thumb-sub{font-size:8px;color:var(--text2)}.explore-main{flex:1 1 0%;min-width:0;display:flex;flex-direction:column;overflow:hidden}.image-wrapper{flex:1;min-height:0;display:flex;align-items:center;justify-content:center;padding:0;background:var(--bg)}.image-container{width:100%;height:100%;display:flex;align-items:center;justify-content:center}.image-ratio-box{position:relative;display:flex;align-items:center;justify-content:center;max-width:100%;max-height:100%;height:100%;width:100%}.main-image{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;border-radius:var(--radius);background:#000;cursor:pointer}.main-image[src=""]{visibility:hidden}.loading-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#ffffffeb}.loading-spinner{width:28px;height:28px;border-radius:50%;border:3px solid var(--border);border-top-color:var(--accent);animation:spin .8s linear infinite;margin-bottom:8px}@keyframes spin{to{transform:rotate(360deg)}}.loading-text{font-size:13px;font-weight:600;color:var(--text)}.loading-sub{font-size:10px;color:var(--text2);margin-top:2px}.loading-bar{width:80px;height:2px;background:#0000000f;border-radius:2px;margin-top:12px;overflow:hidden}.loading-bar-fill{height:100%;background:var(--accent);animation:loadbar 1.5s ease-in-out infinite;width:40%}@keyframes loadbar{0%{transform:translate(-100%)}to{transform:translate(350%)}}.caption-content{flex:1;overflow-y:auto;padding:10px;display:flex;flex-direction:column;align-items:stretch;justify-content:flex-start;text-align:left;max-height:calc(100vh - 80px)}.caption-title{font-size:13px;font-weight:600;color:var(--text);margin-bottom:6px;padding-bottom:4px;border-bottom:1px solid var(--border)}.caption-zh{font-size:12px;line-height:1.5;color:var(--text);margin-bottom:6px}.caption-en{font-size:11px;line-height:1.4;color:var(--text2);font-style:italic;margin-bottom:4px}.caption-source{font-size:9px;color:var(--text2);opacity:.6;font-style:normal}.caption-footer{margin-top:6px;padding-top:4px;border-top:1px solid var(--border)}.caption-footer a{font-size:9px;color:var(--text2);text-decoration:none}.explore-error{padding:3px 14px;font-size:11px;color:#ff3b30;text-align:center}.footer{padding:14px 30px;text-align:center;background:var(--surface);border-top:1px solid var(--border)}.footer-brand{font-size:12px;font-weight:500;color:var(--text2);margin-bottom:2px}.footer-copy{font-size:10px;color:var(--text2);opacity:.7}.footer-version{margin-top:3px;font-size:8px;color:var(--text2);opacity:.5}.footer-version a{color:var(--text2);text-decoration:none}@media (max-width: 768px){.site-header{padding:0 6px}.header-logo-text{font-size:11px}.header-tag{font-size:10px;padding:2px 8px}.header-subject{font-size:11px}.header-subject-link{font-size:10px}.header-arrow-label{font-size:10px;min-width:28px}.header-click-hint{font-size:9px;margin-left:4px;padding-left:4px}.sidebar{width:180px}.sidebar.collapsed{width:36px!important;min-width:36px!important}.home-title{font-size:18px}.home-input{height:40px;font-size:13px}.home-btn{height:38px;font-size:13px}.thumbnail-item img{width:32px;height:24px}.thumbnail-info .thumb-title{font-size:9px}}@media (max-width: 480px){.sidebar{width:40px;min-width:40px}.sidebar .side-fold-btn{font-size:10px;writing-mode:vertical-rl;letter-spacing:1px;padding:2px 0}.sidebar:not(.collapsed) .thumbnail-list,.sidebar:not(.collapsed) .caption-content{display:block}.sidebar:not(.collapsed){position:absolute;top:44px;bottom:0;z-index:40;width:200px!important;max-width:70vw;border-radius:0;box-shadow:2px 0 12px #00000026}.sidebar-right:not(.collapsed){right:0;left:auto;box-shadow:-2px 0 12px #00000026}.explore-body{position:relative}.site-header.explore-header{display:flex;align-items:center;padding:0 4px;gap:2px}.header-left,.header-center,.header-right{position:static;transform:none}.header-left{flex-shrink:0}.header-left .header-logo-text{display:inline;font-size:10px}.header-center{flex:1;min-width:0;display:flex;align-items:center;justify-content:center;gap:3px;overflow:hidden}.header-center .header-click-hint{display:none}.header-subject{font-size:10px;max-width:80px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.header-subject-link{font-size:9px}.header-right{flex-shrink:0;display:flex;align-items:center;gap:2px}.header-arrow-nav{gap:2px}.home-title{font-size:16px}.home-desc{font-size:11px;max-width:240px}.footer{padding:10px 16px}.footer-copy{font-size:9px}.loading-overlay{padding:20px}.caption-content{max-height:calc(100vh - 120px)}}@media (min-width: 769px) and (max-width: 1024px){.sidebar{width:200px}.sidebar.collapsed{width:36px!important;min-width:36px!important}.thumbnail-item img{width:36px;height:27px}}@media (min-width: 1025px){.sidebar{width:240px}}