:root{color-scheme:light;--ink:#19332b;--muted:#5d7068;--accent:#245c46;--line:#dce5dd;--paper:#fafbf7;--soft:#edf2e8}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:var(--paper);color:var(--ink);font:14px/1.6 "Segoe UI","Microsoft YaHei",sans-serif}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:wait;opacity:.55}button,a,input{outline-offset:4px}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible{outline:2px solid var(--accent)}.site-header{height:88px;max-width:1320px;margin:auto;padding:0 48px;display:flex;align-items:center;gap:35px;border-bottom:1px solid var(--line)}.wordmark{font-size:30px;font-weight:750;letter-spacing:-1.5px}.wordmark span{color:#749251}.header-caption{color:var(--muted);font-size:12px}.account{margin-left:auto;display:flex;align-items:center;gap:22px;font-size:12px}.account a{color:var(--accent)}.text-button{border:0;background:none;color:var(--muted);padding:10px 0;font-size:12px}.text-button:hover{color:var(--accent);text-decoration:underline}.library{max-width:1320px;padding:60px 48px 70px;margin:auto;min-height:calc(100vh - 230px)}.library-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:44px}.eyebrow{font-size:10px;letter-spacing:2.5px;font-weight:650;color:#657e5b;margin:0 0 15px}.library h1,.login-view h1{font-size:44px;line-height:1.3;font-weight:550;letter-spacing:-1.5px;margin:0 0 14px}.intro{font-size:14px;color:var(--muted);margin:0}.library-tools{display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line)}.categories{display:flex;gap:24px;flex-wrap:wrap}.categories button{border:0;border-bottom:2px solid transparent;background:none;padding:16px 0;color:var(--muted);font-size:15px;white-space:nowrap}.categories button[aria-pressed=true]{color:var(--ink);border-bottom-color:var(--accent);font-weight:650}.categories span{font-size:11px;margin-left:5px;opacity:.8}.search-box{width:255px;max-width:100%;margin-bottom:10px}.search-box input{width:100%;border:1px solid var(--line);border-radius:24px;background:#fff;padding:11px 17px;font-size:12px;color:var(--ink)}input:focus{outline:2px solid #245c4630;border-color:var(--accent)}.collection-bar{display:flex;align-items:center;justify-content:space-between;gap:15px;margin:22px 0 20px}.collection-bar p,.load-footer p{font-size:12px;color:var(--muted);margin:0}.view-switch{display:flex;gap:5px}.view-switch button{border:1px solid transparent;border-radius:5px;padding:5px 10px;background:none;color:var(--muted);font-size:11px}.view-switch button[aria-pressed=true]{border-color:var(--line);background:white;color:var(--ink)}.file-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:22px}.file-card{border:1px solid var(--line);background:white;padding:23px 22px;text-align:left;border-radius:10px;min-width:0;min-height:188px;transition:border-color .15s,box-shadow .15s;color:var(--ink)}.file-card:hover{border-color:#729781;box-shadow:0 5px 20px #19332b09}.file-card .format{margin-bottom:28px}.format{display:inline-flex;align-items:center;justify-content:center;padding:6px 10px;border-radius:4px;background:var(--soft);font-size:11px;letter-spacing:1px;font-weight:700;color:#4c724c;min-width:46px}.file-card.software .format{background:#eaf0fa;color:#435f9c}.file-card.video .format{background:#f0ebf6;color:#79578f}.file-card.other .format{background:#f4eee2;color:#806536}.file-card strong{display:block;font-size:14px;font-weight:600;line-height:1.6;overflow-wrap:anywhere;margin:0 0 7px}.file-card small{font-size:11px;color:var(--muted)}.list-scroll{overflow:auto}table{width:100%;border-collapse:collapse;text-align:left}th{font-size:11px;font-weight:500;color:var(--muted);padding:12px;border-bottom:1px solid var(--line)}td{padding:17px 12px;border-bottom:1px solid var(--line);font-size:12px}td button{border:0;background:none;padding:5px 0;color:var(--ink);text-align:left;overflow-wrap:anywhere;max-width:100%}.empty{text-align:center;padding:70px 20px}.empty h2{font-size:19px;font-weight:500}.empty p{font-size:12px;color:var(--muted)}.load-footer{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:28px;min-height:42px}.primary,.secondary{padding:10px 19px;border:1px solid var(--accent);border-radius:6px;font-weight:600;font-size:12px}.primary{background:var(--accent);color:white}.secondary{background:white;color:var(--accent)}.file-detail{background:#fff;border:1px solid var(--line);border-radius:10px;padding:28px;margin-top:30px;scroll-margin:20px}.detail-heading{display:flex;align-items:center;justify-content:space-between}.file-detail h2{font-size:24px;font-weight:550;overflow-wrap:anywhere;margin:25px 0}.file-detail dl{display:flex;gap:55px}.file-detail dt{font-size:11px;color:var(--muted);margin-bottom:6px}.file-detail dd{margin:0;font-size:13px}.detail-note,.coming-soon{font-size:12px;color:var(--muted);line-height:1.9}.coming-soon{padding-top:15px;border-top:1px solid var(--line)}.site-footer{border-top:1px solid var(--line);max-width:1224px;margin:0 auto;padding:25px 0;display:flex;align-items:center;gap:20px;color:var(--muted);font-size:11px}.site-footer small{margin-left:auto;font-size:10px}.small{font-size:19px;color:var(--ink)}.login-view{max-width:1000px;min-height:670px;margin:0 auto;padding:100px 35px;position:relative}.login-view h1{font-size:56px}.login-form{position:absolute;right:35px;top:80px;width:330px;padding:30px;border:1px solid var(--line);border-radius:12px;background:white}.login-form h2{font-size:22px;font-weight:550;margin:0 0 24px}.login-form label{display:block;font-size:12px;margin:18px 0 6px}.login-form input{width:100%;border:1px solid var(--line);border-radius:5px;padding:10px;min-width:0}.login-form button{width:100%;margin-top:23px}.error{color:#923a31;background:#fff0ec;border:1px solid #e8c9c0;padding:12px 15px;border-radius:6px;font-size:12px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:900px){.site-header{padding:0 28px}.library{padding:42px 28px}.categories{gap:18px}.search-box{width:210px}.site-footer{margin:0 28px}.login-view{padding:65px 28px;min-height:730px}.login-form{position:static;margin-top:40px}.login-view h1{font-size:40px}}@media(max-width:600px){.site-header{height:72px;padding:0 20px;gap:12px}.header-caption{display:none}.wordmark{font-size:26px}.account{gap:15px}.library{padding:35px 20px 45px}.library-heading{margin-bottom:30px}.library h1{font-size:33px}.intro{font-size:12px}.eyebrow{font-size:9px;letter-spacing:1.5px}.library-tools{display:flex;flex-direction:column-reverse;align-items:stretch;gap:0}.search-box{width:100%;margin-bottom:9px}.categories{justify-content:space-between;gap:8px}.categories button{font-size:13px;padding:13px 0}.categories span{font-size:10px;margin-left:2px}.file-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.file-card{padding:18px 14px;min-height:178px}.file-card strong{font-size:12px}.file-card small{font-size:10px}.collection-bar{margin:19px 0}.collection-bar p{font-size:11px}.file-detail{padding:21px}.file-detail h2{font-size:20px}.file-detail dl{gap:30px}.load-footer{align-items:flex-start;flex-direction:column;gap:12px}.site-footer{margin:0 20px;flex-wrap:wrap;gap:12px;padding:23px 0}.site-footer p{margin:0}.site-footer small{width:100%;margin:0}.login-view{padding:45px 20px;min-height:700px}.login-form{width:100%;max-width:360px;padding:24px}.login-view h1{font-size:36px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}
.download-link{display:inline-block;margin:12px 0}.preview-status{color:var(--muted);font-size:12px}.file-preview{margin-top:18px}.file-preview video{display:block;width:100%;max-height:70vh;background:#111;border-radius:8px}.file-preview audio{width:100%}.file-preview iframe{width:100%;height:75vh;border:1px solid var(--line);border-radius:6px}.file-preview img{display:block;max-width:100%;max-height:75vh;object-fit:contain}.file-preview pre{white-space:pre-wrap;overflow-wrap:anywhere;padding:22px;background:#f6f8f1;border:1px solid var(--line);border-radius:6px;max-height:75vh;overflow:auto;font:13px/1.9 "Consolas","Microsoft YaHei",monospace}
.pdf-controls{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:15px 0}.pdf-controls span{font-size:12px;color:var(--muted)}.file-preview img.pdf-page{width:100%;max-height:none;background:white;border:1px solid var(--line)}
.file-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.share-form{max-width:620px;margin:20px 0;padding:22px;background:var(--soft);border-radius:8px}.share-form label{display:block;margin:14px 0 6px}.share-form input,.share-form select{width:100%;padding:11px;border:1px solid var(--line);border-radius:5px;background:white;font:inherit}.share-form button{margin-top:16px}.owned-share{display:flex;justify-content:space-between;align-items:center;gap:18px;border-bottom:1px solid var(--line);padding:18px 0}.owned-share span{overflow-wrap:anywhere;min-width:0}.owned-share button{flex-shrink:0}#download-status,#share-status,#shares-status{font-size:12px;color:var(--muted)}
.session-error{margin:80px auto;max-width:1140px;padding:0 28px;font-size:14px}