:root{--bg: #fafafa;--text: #1a1a1a;--text-muted: #666;--border: #e5e5e5;--accent: #0066cc;--accent-hover: #0052a3;--shadow: 0 1px 3px rgba(0, 0, 0, .08);--radius: 8px}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;padding:2rem 1rem}.main{text-align:center;max-width:600px;width:100%}.domain-name{font-size:clamp(2.5rem,8vw,4.5rem);font-weight:700;letter-spacing:-.03em;line-height:1.1;margin-bottom:1rem;color:var(--text)}.domain-label{font-size:.875rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em;margin-bottom:2.5rem}.description{font-size:1.125rem;color:var(--text-muted);margin-bottom:3rem;line-height:1.7}.actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;margin-bottom:3rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.875rem 1.75rem;font-size:.9375rem;font-weight:500;border-radius:var(--radius);border:1px solid transparent;cursor:pointer;transition:all .15s ease;text-decoration:none;white-space:nowrap}.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);transform:translateY(-1px);box-shadow:var(--shadow)}.btn-secondary{background:transparent;color:var(--text);border-color:var(--border)}.btn-secondary:hover{background:var(--border);border-color:var(--text-muted)}.btn-ghost{background:transparent;color:var(--text-muted);border-color:transparent}.btn-ghost:hover{color:var(--text);background:var(--border)}.footer{margin-top:auto;padding-top:2rem;color:var(--text-muted);font-size:.8125rem}.footer a{color:var(--accent);text-decoration:none}.footer a:hover{text-decoration:underline}.toast{position:fixed;bottom:2rem;left:50%;transform:translate(-50%) translateY(100px);padding:.875rem 1.5rem;background:var(--text);color:var(--bg);border-radius:var(--radius);font-size:.875rem;font-weight:500;opacity:0;transition:all .2s ease;z-index:1000;box-shadow:0 4px 12px #00000026}.toast.show{transform:translate(-50%) translateY(0);opacity:1}@media (max-width: 480px){.domain-name{font-size:clamp(2rem,10vw,3rem)}.actions{flex-direction:column;align-items:center}.btn{width:100%;max-width:280px}}@media (prefers-color-scheme: dark){:root{--bg: #0a0a0a;--text: #fafafa;--text-muted: #a3a3a3;--border: #262626;--accent: #3b82f6;--accent-hover: #60a5fa}.toast{background:var(--text);color:var(--bg)}}