:root{--bg-main:#0b0d10;--bg-card:#13161c;--bg-card-hover:#171b23;--bg-input:#0e1116;--border-subtle:#20242e;--border-focus:#4b5563;--border-glow:#ffffff26;--text-primary:#f9fafb;--text-secondary:#9ca3af;--text-muted:#6b7280;--accent-white:#fff;--accent-glow:#ffffff14;--success:#10b981;--success-bg:#10b9811a;--error:#ef4444;--error-bg:#ef44441a;--radius-sm:6px;--radius-md:10px;--radius-lg:14px}*{box-sizing:border-box;margin:0;padding:0}html,body{background-color:var(--bg-main);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.5}body{background-image:radial-gradient(circle at 50% 0,#ffffff0a 0%,#0000 60%),radial-gradient(circle at 80% 80%,#ffffff05 0%,#0000 40%);background-attachment:fixed;flex-direction:column;display:flex}.site-header{border-bottom:1px solid var(--border-subtle);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:50;background:#0b0d10d9;position:sticky;top:0}.header-container{justify-content:space-between;align-items:center;max-width:960px;margin:0 auto;padding:14px 20px;display:flex}.brand-wrapper{color:inherit;align-items:center;gap:12px;text-decoration:none;display:flex}.brand-logo{object-fit:cover;border:1px solid #ffffff40;border-radius:50%;width:36px;height:36px;box-shadow:0 0 10px #ffffff1a}.brand-title{letter-spacing:-.02em;color:#fff;font-size:1.15rem;font-weight:700}.brand-badge{color:#9ca3af;border:1px solid var(--border-subtle);letter-spacing:.02em;background:#1c202a;border-radius:999px;padding:2px 8px;font-size:.72rem;font-weight:500}.header-meta{color:var(--text-secondary);align-items:center;gap:16px;font-size:.85rem;display:flex}.status-indicator{align-items:center;gap:6px;display:flex}.status-dot{background-color:var(--success);width:7px;height:7px;box-shadow:0 0 8px var(--success);border-radius:50%}.main-content{flex:1;width:100%;max-width:860px;margin:0 auto;padding:40px 20px 60px}.hero-section{text-align:center;margin-bottom:32px}.hero-title{letter-spacing:-.03em;color:#fff;margin-bottom:8px;font-size:2rem;font-weight:700}.hero-subtitle{color:var(--text-secondary);max-width:580px;margin:0 auto;font-size:.95rem}.card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:28px;transition:border-color .2s;box-shadow:0 8px 30px #0006}.dropzone{border:2px dashed var(--border-subtle);border-radius:var(--radius-md);text-align:center;cursor:pointer;background:var(--bg-input);padding:48px 24px;transition:all .2s;position:relative}.dropzone:hover,.dropzone.active{background:#ffffff05;border-color:#fff6;box-shadow:0 0 20px #ffffff08}.dropzone-icon{border:1px solid var(--border-subtle);color:#fff;background:#171b23;border-radius:50%;justify-content:center;align-items:center;width:52px;height:52px;margin-bottom:16px;display:inline-flex}.dropzone-title{color:#fff;margin-bottom:6px;font-size:1.05rem;font-weight:600}.dropzone-hint{color:var(--text-muted);margin-bottom:16px;font-size:.85rem}.file-input-hidden{display:none}.file-preview{border:1px solid var(--border-subtle);border-radius:var(--radius-md);background:#181c24;justify-content:space-between;align-items:center;gap:12px;margin-top:20px;padding:16px;display:flex}.file-info{align-items:center;gap:12px;display:flex;overflow:hidden}.file-icon-badge{color:#fff;text-transform:uppercase;letter-spacing:.05em;background:#232834;border:1px solid #ffffff1a;border-radius:4px;padding:4px 8px;font-size:.72rem;font-weight:700}.file-name{color:#fff;white-space:nowrap;text-overflow:ellipsis;max-width:420px;font-size:.95rem;font-weight:600;overflow:hidden}.file-size{color:var(--text-secondary);font-size:.82rem}.btn{border-radius:var(--radius-sm);cursor:pointer;border:1px solid #0000;justify-content:center;align-items:center;gap:8px;padding:10px 18px;font-size:.9rem;font-weight:600;text-decoration:none;transition:all .15s;display:inline-flex}.btn-primary{color:#0b0d10;background:#fff;border-color:#fff}.btn-primary:hover:not(:disabled){background:#e5e7eb;border-color:#e5e7eb;box-shadow:0 0 15px #fff3}.btn-secondary{color:var(--text-primary);border-color:var(--border-subtle);background:#1c202a}.btn-secondary:hover:not(:disabled){background:#252b38;border-color:#fff3}.btn-copy{color:#fff;border:1px solid var(--border-subtle);border-radius:var(--radius-sm);background:#202530;padding:6px 12px;font-size:.8rem}.btn-copy:hover{background:#2b3240;border-color:#fff3}.btn-copy.copied{background:var(--success-bg);border-color:var(--success);color:var(--success)}.btn:disabled{opacity:.5;cursor:not-allowed}.action-row{justify-content:flex-end;gap:12px;margin-top:20px;display:flex}.uploading-container{margin-top:24px}.progress-header{color:var(--text-secondary);justify-content:space-between;margin-bottom:8px;font-size:.85rem;display:flex}.progress-percent{color:#fff;font-weight:700}.progress-bar-bg{border:1px solid var(--border-subtle);background:#1c202a;border-radius:999px;width:100%;height:8px;overflow:hidden}.progress-bar-fill{background:linear-gradient(90deg,#9ca3af,#fff);border-radius:999px;height:100%;transition:width .15s;box-shadow:0 0 10px #ffffff4d}.progress-stats{color:var(--text-muted);justify-content:space-between;margin-top:10px;font-size:.8rem;display:flex}.result-container{flex-direction:column;gap:18px;margin-top:24px;display:flex}.success-banner{background:var(--success-bg);border-radius:var(--radius-md);color:#6ee7b7;border:1px solid #10b9814d;align-items:center;gap:12px;padding:14px 16px;font-size:.92rem;font-weight:500;display:flex}.result-item{flex-direction:column;gap:6px;display:flex}.result-label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.04em;font-size:.8rem;font-weight:600}.result-box{background:var(--bg-input);border:1px solid var(--border-subtle);border-radius:var(--radius-sm);align-items:center;gap:10px;padding:8px 12px;display:flex}.result-input{color:#fff;text-overflow:ellipsis;background:0 0;border:none;outline:none;flex:1;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.88rem;overflow:hidden}.error-banner{background:var(--error-bg);border-radius:var(--radius-md);color:#fca5a5;border:1px solid #ef44444d;align-items:center;gap:10px;margin-top:20px;padding:12px 16px;font-size:.88rem;display:flex}.guide-section{border:1px solid var(--border-subtle);border-radius:var(--radius-lg);background:#11141a;margin-top:32px;padding:24px}.guide-title{color:#fff;align-items:center;gap:8px;margin-bottom:12px;font-size:1.05rem;font-weight:700;display:flex}.guide-step{color:var(--text-secondary);margin-bottom:12px;font-size:.88rem;line-height:1.6}.guide-code{border:1px solid var(--border-subtle);border-radius:var(--radius-sm);color:#e5e7eb;background:#0b0d10;margin-top:6px;padding:10px 14px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.82rem;display:block;overflow-x:auto}.site-footer{border-top:1px solid var(--border-subtle);text-align:center;color:var(--text-muted);background:#0b0d10;padding:24px 20px;font-size:.82rem}.footer-link{color:var(--text-secondary);text-decoration:none}.footer-link:hover{text-decoration:underline}@media (max-width:640px){.hero-title{font-size:1.6rem}.card{padding:20px}.dropzone{padding:32px 16px}.file-preview{flex-direction:column;align-items:flex-start}.action-row{flex-direction:column}.btn{width:100%}}