*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--color-bg: #f6f8fa;--color-surface: #ffffff;--color-border: #d0d7de;--color-border-muted: #eaeef2;--color-text: #1f2328;--color-text-muted: #656d76;--color-code-bg: #f6f8fa;--color-accent: #0969da;--color-accent-hover: #0550ae;--color-success: #1a7f37;--color-success-bg: #dafbe1;--color-success-border: #aceebb;--color-error-bg: #fff0ee;--color-error-border: #ffb3aa;--color-error-text: #a40e26;--color-btn-primary: #1f883d;--color-btn-primary-hover: #1a7f37;--color-btn-primary-disabled: #94d3a2;--radius: 6px;--shadow: 0 1px 0 rgba(31,35,40,.04);--shadow-md: 0 3px 6px rgba(140,149,159,.15);font-size:14px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans,Helvetica,Arial,sans-serif;background-color:var(--color-bg);color:var(--color-text);line-height:1.5;min-height:100vh}.header{background:var(--color-surface);border-bottom:1px solid var(--color-border);height:56px;display:flex;align-items:center;padding:0 24px}.header-inner{display:flex;align-items:center;gap:10px;max-width:1012px;margin:0 auto;width:100%}.header-logo{font-size:22px;line-height:1}.header-title{font-size:16px;font-weight:600;color:var(--color-text)}.main{max-width:860px;margin:32px auto;padding:0 24px}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow)}.card-header{padding:24px 24px 16px;border-bottom:1px solid var(--color-border-muted);margin-bottom:0}.card-title{font-size:20px;font-weight:600;color:var(--color-text);margin-bottom:8px}.card-description{color:var(--color-text-muted);font-size:14px;line-height:1.6}.card-description code{font-family:ui-monospace,SFMono-Regular,SF Mono,Menlo,Consolas,monospace;font-size:85%;background:var(--color-code-bg);border:1px solid var(--color-border);border-radius:3px;padding:.2em .4em}.field{padding:20px 24px 0}.field-label{display:block;font-weight:600;font-size:14px;margin-bottom:8px;color:var(--color-text)}.textarea{display:block;width:100%;min-height:420px;padding:12px;font-family:ui-monospace,SFMono-Regular,SF Mono,Menlo,Consolas,monospace;font-size:12px;line-height:1.6;color:var(--color-text);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);resize:vertical;outline:none;transition:border-color .15s,box-shadow .15s;-moz-tab-size:4;tab-size:4}.textarea:focus{border-color:var(--color-accent);box-shadow:0 0 0 3px #0969da4d}.textarea::placeholder{color:var(--color-text-muted);opacity:.7}.field-hint{margin-top:6px;font-size:12px;color:var(--color-text-muted)}.actions{display:flex;align-items:center;gap:12px;padding:20px 24px 24px}.btn{display:inline-flex;align-items:center;gap:6px;padding:6px 16px;font-size:14px;font-weight:500;line-height:20px;border-radius:var(--radius);border:1px solid;cursor:pointer;white-space:nowrap;transition:background-color .1s,border-color .1s,box-shadow .1s;text-decoration:none;-webkit-user-select:none;user-select:none}.btn-primary{color:#fff;background-color:var(--color-btn-primary);border-color:#1f232826}.btn-primary:hover:not(:disabled){background-color:var(--color-btn-primary-hover)}.btn-primary:active:not(:disabled){background-color:#196c2e}.btn-primary:disabled{background-color:var(--color-btn-primary-disabled);border-color:#1f232826;cursor:not-allowed}.btn-icon{width:16px;height:16px;flex-shrink:0}.spinner{display:inline-block;width:14px;height:14px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite;flex-shrink:0}@keyframes spin{to{transform:rotate(360deg)}}.status{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500}.status svg{width:16px;height:16px;flex-shrink:0}.status-success{color:var(--color-success)}.error-box{margin:0 24px 24px;padding:12px 16px;background:var(--color-error-bg);border:1px solid var(--color-error-border);border-radius:var(--radius);color:var(--color-error-text);font-size:13px}.error-box strong{display:block;margin-bottom:6px;font-weight:600}.error-detail{font-family:ui-monospace,SFMono-Regular,SF Mono,Menlo,Consolas,monospace;font-size:12px;white-space:pre-wrap;word-break:break-word;margin:0;max-height:200px;overflow-y:auto}.footer{text-align:center;padding:24px;font-size:12px;color:var(--color-text-muted)}@media(max-width:600px){.main{margin:16px auto;padding:0 12px}.card-header,.field,.actions,.error-box{padding-left:16px;padding-right:16px}.textarea{min-height:300px}}