:root{--bg:#f6f7f9;--surface:#fff;--surface-2:#f9fafb;--text:#0f172a;--text-secondary:#475569;--text-muted:#64748b;--border:#e5e7eb;--border-strong:#d1d5db;--accent:#4f46e5;--accent-hover:#4338ca;--accent-soft:#eef2ff;--accent-text:#4338ca;--danger:#dc2626;--danger-soft:#fef2f2;--danger-text:#b91c1c;--success:#16a34a;--success-soft:#f0fdf4;--success-text:#15803d;--shadow-sm:0 1px 2px #0f172a0d;--shadow-md:0 4px 14px #0f172a12;--shadow-lg:0 16px 40px #0f172a24;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-full:999px;--font-sans:system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono:ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*,:before,:after{box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-sans);color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;margin:0;font-size:16px;line-height:1.5;overflow-x:hidden}h1,h2,h3,h4,p,ul,ol,dl,dd{margin:0}ul,ol{padding:0;list-style:none}button{font:inherit;color:inherit;cursor:pointer;background:0 0;border:0;padding:0}a{color:inherit;text-decoration:none}svg{flex-shrink:0;display:block}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}::selection{background:var(--accent-soft)}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.main{width:min(960px,100%);margin:0 auto;padding:40px 24px 64px}.header{z-index:40;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);background:#ffffffd9;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;gap:16px;width:min(960px,100%);height:64px;margin:0 auto;padding:0 24px;display:flex}.brand{color:var(--text);align-items:center;gap:10px;font-size:18px;font-weight:700;display:inline-flex}.brand-logo{background:var(--accent);color:#fff;border-radius:10px;place-items:center;width:34px;height:34px;display:grid}.brand-logo-sm{border-radius:8px;width:28px;height:28px}.header-nav{align-items:center;gap:4px;display:flex}.nav-link{border-radius:var(--radius-sm);color:var(--text-secondary);padding:8px 12px;font-size:15px;font-weight:500;transition:background .15s,color .15s}.nav-link:hover{background:var(--surface-2);color:var(--text)}.nav-github{border-radius:var(--radius-sm);width:36px;height:36px;color:var(--text-secondary);place-items:center;margin-left:8px;transition:background .15s,color .15s;display:grid}.nav-github:hover{background:var(--surface-2);color:var(--text)}.header-menu-btn{border-radius:var(--radius-sm);width:40px;height:40px;color:var(--text-secondary);place-items:center;display:none}.header-menu-btn:hover{background:var(--surface-2);color:var(--text)}.hero{text-align:center;scroll-margin-top:88px}.hero-title{letter-spacing:-.02em;color:var(--text);font-size:32px;font-weight:800}.hero-subtitle{max-width:520px;color:var(--text-muted);margin:10px auto 32px;font-size:16px}.hero-actions{justify-content:center;gap:12px;margin-top:16px;display:flex}.address-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);text-align:left;max-width:680px;margin:0 auto;padding:24px}.address-top{align-items:center;gap:8px;margin-bottom:16px;display:flex}.address-icon{background:var(--accent-soft);width:34px;height:34px;color:var(--accent-text);border-radius:10px;place-items:center;display:grid}.address-status{color:var(--success-text);background:var(--success-soft);border-radius:var(--radius-full);padding:3px 10px;font-size:13px;font-weight:600}.address-status.is-expired{color:var(--danger-text);background:var(--danger-soft)}.address-row{align-items:center;gap:16px;display:flex}.address-value{min-width:0;font-family:var(--font-mono);color:var(--text);word-break:break-all;flex:1;font-size:22px;font-weight:600}.address-copy-btn{flex-shrink:0}.timer{color:var(--text-muted);justify-content:center;align-items:center;gap:10px;margin-top:24px;display:flex}.timer-label{font-size:15px;font-weight:500}.timer-value{font-family:var(--font-mono);letter-spacing:.04em;color:var(--text);font-size:30px;font-weight:700}.timer.is-expired,.timer.is-expired 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h2{font-size:20px;font-weight:700}.inbox-count{color:var(--text-muted);font-size:14px;font-weight:500}.unread-badge{color:var(--accent-text);background:var(--accent-soft);border-radius:var(--radius-full);padding:2px 10px;font-size:12px;font-weight:600}.inbox-actions{gap:8px;display:flex}.inbox-body{min-height:200px}.email-list{flex-direction:column;display:flex}.email-item-wrap:not(:last-child){border-bottom:1px solid var(--border)}.email-item{text-align:left;background:#f8fafc;align-items:flex-start;gap:14px;width:100%;padding:16px 24px;transition:background .15s;display:flex}.email-item:hover{background:var(--accent-soft)}.email-item.is-unread{background:var(--surface);box-shadow:inset 3px 0 0 var(--accent)}.email-item.is-unread .email-sender,.email-item.is-unread 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p:last-child{margin-bottom:0}.skeleton{background:#eef0f4;border-radius:8px;position:relative;overflow:hidden}.skeleton:after{content:"";background:linear-gradient(90deg,#0000,#ffffffb3,#0000);animation:1.4s infinite shimmer;position:absolute;inset:0;transform:translate(-100%)}@keyframes shimmer{to{transform:translate(100%)}}.skeleton-address{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);flex-direction:column;gap:16px;max-width:680px;margin:0 auto;padding:24px;display:flex}.skeleton-block{width:100%;height:44px}.skeleton-btn{border-radius:var(--radius-md);width:140px;height:44px}.skeleton-list{flex-direction:column;gap:16px;padding:8px 24px 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p{color:var(--text-muted);font-size:14px}.footer{border-top:1px solid var(--border);background:var(--surface);padding:32px 24px;scroll-margin-top:88px}.footer-inner{text-align:center;flex-direction:column;align-items:center;gap:12px;max-width:960px;margin:0 auto;display:flex}.footer-brand{align-items:center;gap:8px;font-weight:700;display:inline-flex}.footer-note{max-width:480px;color:var(--text-muted);font-size:13px}.footer-links{color:var(--text-muted);gap:8px;font-size:14px;display:flex}.footer-links a:hover{color:var(--accent-text)}.footer-dot{opacity:.6}@media (width<=768px){.header-menu-btn{display:grid}.header-nav{background:var(--surface);border-bottom:1px solid var(--border);box-shadow:var(--shadow-md);flex-direction:column;align-items:stretch;gap:4px;padding:12px 16px;display:none;position:absolute;top:64px;left:0;right:0}.header-nav.is-open{display:flex}.nav-link{border-radius:var(--radius-sm);padding:12px}.nav-github{justify-content:flex-start;width:100%;height:auto;margin-left:0;padding:10px 12px}.main{padding:32px 16px 48px}.header-inner{padding:0 16px}.steps{grid-template-columns:1fr}}@media (width<=560px){.hero-title{font-size:26px}.address-row{flex-direction:column;align-items:stretch;gap:12px}.address-value{text-align:center;font-size:18px}.address-card{padding:20px 16px}.hero-actions{flex-direction:column;align-items:stretch}.hero-actions .btn{width:100%}.timer-value{font-size:26px}.inbox-header{flex-direction:column;align-items:flex-start}.inbox-actions{flex-wrap:wrap;width:100%}.inbox-actions .btn{flex:auto}.email-item{gap:12px;padding:14px 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