:root{--bg: #f5f6f8;--surface: #ffffff;--ink: #15181f;--ink-soft: #6b7280;--line: #e6e8ee;--accent: #2f6fed;--radius: 14px;--shadow: 0 8px 30px rgba(17, 24, 39, .07)}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;min-height:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}.page{min-height:100vh;display:flex;flex-direction:column}.hero{background:radial-gradient(900px 300px at 15% -20%,rgba(47,111,237,.55),transparent 60%),linear-gradient(150deg,#0e1422,#16203a 60%,#1b2a4d);color:#fff;padding:64px 24px 56px}.hero-inner{max-width:1120px;margin:0 auto}.hero h1{margin:0;font-size:clamp(28px,5vw,44px);font-weight:700;letter-spacing:.5px}.hero p{margin:12px 0 0;color:#ffffff9e;font-size:15px;letter-spacing:2px}.main{flex:1;width:100%;max-width:1120px;margin:0 auto;padding:8px 24px 72px}.section{margin-top:48px;scroll-margin-top:24px}.section-head{display:flex;align-items:baseline;gap:10px;margin-bottom:18px}.section-head h2{margin:0;font-size:20px;font-weight:600}.section-count{font-size:12px;color:var(--ink-soft);background:#eaecf2;border-radius:999px;padding:2px 9px}.image-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(216px,1fr));gap:14px}.image-item{position:relative;padding:0;border:none;background:var(--surface);border-radius:var(--radius);overflow:hidden;cursor:zoom-in;box-shadow:var(--shadow);aspect-ratio:1 / 1;transition:transform .22s ease,box-shadow .22s ease}.image-item:hover{transform:translateY(-3px);box-shadow:0 14px 36px #11182724}.image-item img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s ease}.image-item:hover img{transform:scale(1.04)}.image-caption{position:absolute;left:0;right:0;bottom:0;padding:26px 12px 10px;font-size:12px;color:#fff;text-align:left;background:linear-gradient(transparent,#0000009e);opacity:0;transition:opacity .2s ease;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.image-item:hover .image-caption{opacity:1}.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:18px}.video-card{background:var(--surface);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}.video-stage{background:#0b0f17;aspect-ratio:16 / 9;display:flex;align-items:center;justify-content:center}.video-stage video{width:100%;height:100%;display:block;background:#000}.video-fallback{color:#ffffffbf;font-size:13px;text-align:center;padding:16px}.video-meta{padding:12px 14px 14px}.video-title{font-size:14px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.video-sub{margin-top:8px;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--ink-soft)}.file-list{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.file-row{display:flex;align-items:center;gap:14px;padding:14px 18px;border-bottom:1px solid var(--line)}.file-row:last-child{border-bottom:none}.file-icon{width:42px;height:42px;border-radius:9px;background:#fff1e6;color:#d46b08;font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;flex:none}.file-info{flex:1;min-width:0}.file-title{font-size:14px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-sub{margin-top:3px;font-size:12px;color:var(--ink-soft)}.btn-download{display:inline-flex;align-items:center;justify-content:center;height:32px;padding:0 14px;border-radius:8px;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:13px;font-weight:500;cursor:pointer;transition:background .18s ease,border-color .18s ease;flex:none}.btn-download:hover{background:#f0f4ff;border-color:#c9d8fb;color:var(--accent)}.state{padding:80px 16px;text-align:center;color:var(--ink-soft);font-size:14px}.state p{margin:0 0 16px}.spinner{width:26px;height:26px;margin:0 auto 14px;border-radius:50%;border:2px solid #dfe3ea;border-top-color:var(--accent);animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.footer{border-top:1px solid var(--line);padding:24px;display:flex;gap:16px;justify-content:center;color:var(--ink-soft);font-size:12px}.footer a:hover{color:var(--accent)}.lightbox{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;background:#080a10f0;display:flex;flex-direction:column;animation:fade-in .16s ease}@keyframes fade-in{0%{opacity:0}}.lightbox-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 20px;color:#ffffffd9;font-size:13px}.lightbox-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.lightbox-actions{display:flex;gap:8px;flex:none}.lb-btn{height:30px;padding:0 12px;border-radius:7px;border:1px solid rgba(255,255,255,.18);background:#ffffff0f;color:#ffffffe6;font-size:12px;cursor:pointer;display:inline-flex;align-items:center}.lb-btn:hover{background:#ffffff24}.lightbox-stage{flex:1;min-height:0;display:flex;align-items:center;justify-content:center;position:relative;padding:0 64px 24px}.lightbox-img{max-width:100%;max-height:100%;object-fit:contain;border-radius:4px}.lb-nav{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;border:none;background:#ffffff1a;color:#fff;font-size:26px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center}.lb-nav:hover{background:#fff3}.lb-prev{left:14px}.lb-next{right:14px}.lightbox-count{text-align:center;padding:0 0 18px;color:#ffffff80;font-size:12px}@media(max-width:640px){.hero{padding:44px 18px 36px}.main{padding:4px 16px 56px}.section{margin-top:36px}.image-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px}.video-grid{grid-template-columns:1fr}.lightbox-stage{padding:0 8px 16px}.lb-nav{display:none}.lightbox-bar{padding:10px 12px}}