:root{--bg0: #f3f6f4;--bg1: #e8f0ec;--ink: #1a2e24;--muted: #5a6f64;--accent: #1f6b4a;--accent-soft: #d8eee4;--danger: #b42318;--danger-bg: #fef3f2;--ok: #067647;--ok-bg: #ecfdf3;--line: #cfdad3;--card: #ffffff;--shadow: 0 10px 30px rgba(26, 46, 36, .08);--radius: 16px;font-family:PingFang SC,Hiragino Sans GB,Noto Sans SC,Source Han Sans SC,Microsoft YaHei,sans-serif;color:var(--ink);background:var(--bg0);line-height:1.5}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:radial-gradient(1200px 600px at 10% -10%,#d9efe4 0%,transparent 55%),radial-gradient(900px 500px at 100% 0%,#e7eef8 0%,transparent 50%),linear-gradient(180deg,var(--bg1),var(--bg0) 40%)}body,#app{min-height:100dvh}.page{min-height:100dvh;display:flex;flex-direction:column;max-width:560px;margin:0 auto;padding:20px 16px 28px}.header{margin-bottom:20px}.brand{display:inline-block;font-size:1.45rem;font-weight:700;letter-spacing:.04em;color:var(--ink);text-decoration:none}.header-sub{margin:6px 0 0;color:var(--muted);font-size:.92rem}.main{flex:1}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px 18px}.card h1{margin:0 0 8px;font-size:1.2rem}.card p{margin:0 0 10px;color:var(--muted);font-size:.95rem}.card p:last-child{margin-bottom:0}.meta{display:grid;gap:10px;margin:16px 0}.meta-row{display:flex;justify-content:space-between;gap:12px;font-size:.95rem}.meta-row span:first-child{color:var(--muted)}.meta-row .price{font-size:1.35rem;font-weight:700;color:var(--accent)}.btn{display:inline-flex;align-items:center;justify-content:center;width:100%;min-height:48px;border:0;border-radius:12px;background:var(--accent);color:#fff;font-size:1rem;font-weight:600;cursor:pointer}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-ghost{background:var(--accent-soft);color:var(--accent);margin-top:10px}.spinner{margin-bottom:12px;color:var(--muted);font-size:.9rem}.err{background:var(--danger-bg);color:var(--danger);border-radius:12px;padding:12px 14px;margin-bottom:12px;font-size:.92rem}.ok{background:var(--ok-bg);color:var(--ok);border-radius:12px;padding:12px 14px;margin-bottom:12px;font-size:.92rem}.hint{margin-top:14px;font-size:.85rem;color:var(--muted)}.footer{margin-top:28px;text-align:center;color:var(--muted);font-size:.78rem}.footer-co{margin:0 0 6px}.footer-links{margin:0}.footer a{color:var(--muted);text-decoration:none}.footer a:hover{text-decoration:underline}.list{margin:12px 0 0;padding-left:1.1rem;color:var(--muted);font-size:.9rem}.home-card h2{margin:20px 0 10px;font-size:1.02rem;color:var(--ink)}.home-block:first-of-type h2{margin-top:16px}.home-links{margin:0 0 8px;font-size:.92rem}.inline-link{color:var(--accent);font-weight:600;text-decoration:none}.inline-link:hover{text-decoration:underline}.price-grid{display:grid;gap:10px;margin:4px 0 8px}.price-card{border:1px solid var(--line);border-radius:12px;padding:12px 14px;background:var(--bg0)}.price-name{margin:0;font-size:.82rem;color:var(--muted)}.price-amount{margin:2px 0 4px;font-size:1.35rem;font-weight:700;color:var(--accent)}.price-desc{margin:0;font-size:.85rem}.price-buy{margin:8px 0 0;font-size:.82rem;font-weight:650;color:var(--accent)}.price-card-link{display:block;text-decoration:none;color:inherit}.price-card-link:hover{border-color:var(--accent)}.btn-mini{display:inline-flex;align-items:center;justify-content:center;margin-top:10px;min-height:36px;padding:0 14px;border:0;border-radius:999px;background:var(--accent);color:#fff;font-size:.85rem;font-weight:600;cursor:pointer}.sample-result{margin:10px 0 0;font-size:.88rem;white-space:pre-wrap;color:var(--ink)}.checkout-actions{display:grid;gap:8px;margin-top:16px}.sample-list{display:grid;gap:10px}.sample{border:1px solid var(--line);border-radius:12px;padding:12px 14px;background:var(--bg0)}.sample-k{margin:0 0 6px;font-size:.82rem;font-weight:650;color:var(--accent)}.sample-b{margin:0;font-size:.88rem;white-space:pre-wrap}.field{display:block;width:100%;margin-top:8px;padding:8px 10px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);font:inherit;font-size:.88rem;resize:vertical}.chip-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}.chip{border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--accent);font-size:.75rem;padding:4px 10px;cursor:pointer}