*{margin:0;padding:0;box-sizing:border-box}html,body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;-webkit-font-smoothing:antialiased}.landing-container{max-width:680px;margin:0 auto;padding:16px;min-height:100vh;background:#f7f8fa}.landing-header{text-align:center;padding:24px 0 16px}.landing-title{font-size:22px;font-weight:600;color:#1a1a1a;margin-bottom:8px}.landing-desc{font-size:15px;color:#666;line-height:1.6}.landing-media{margin:16px 0;border-radius:12px;overflow:hidden;background:#fff;box-shadow:0 2px 12px #00000014}.landing-media video{width:100%;max-height:70vh;display:block;background:#000}.landing-media img{width:100%;display:block}.gate-container{max-width:400px;margin:0 auto;padding:40px 24px;min-height:100vh;display:flex;flex-direction:column;justify-content:center;background:#f7f8fa}.gate-card{background:#fff;border-radius:16px;padding:32px 24px;box-shadow:0 4px 24px #0000001a;text-align:center}.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:8px;margin:16px 0}.gallery-item{position:relative;width:100%;padding-top:100%;border-radius:8px;overflow:hidden;cursor:pointer;background:#eee}.gallery-item>*{position:absolute;left:0;top:0;width:100%;height:100%}.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform .2s}.gallery-item img:hover{transform:scale(1.05)}.expired-container{max-width:400px;margin:0 auto;padding:60px 24px;text-align:center;min-height:100vh;display:flex;flex-direction:column;justify-content:center}.audio-player{background:#fff;border-radius:12px;padding:20px;margin:16px 0;box-shadow:0 2px 12px #00000014}.audio-player audio{width:100%}.document-card{background:#fff;border-radius:12px;padding:24px;margin:16px 0;box-shadow:0 2px 12px #00000014;text-align:center}.image-viewer-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000eb;z-index:1000;display:flex;align-items:center;justify-content:center;flex-direction:column}.image-viewer-overlay img{max-width:95vw;max-height:85vh;object-fit:contain;border-radius:4px}.image-viewer-actions{margin-top:16px;display:flex;gap:12px}