:root{--blue:#2563eb;--blue-dark:#1e40af;--blue-soft:#eff6ff;--ink:#111827;--gray:#6b7280;--line:#e5e7eb;--red:#dc2626;--red-soft:#fef2f2;--green:#16a34a;--green-soft:#f0fdf4;--amber:#b45309;--amber-soft:#fffbeb;--radius:12px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;color:var(--ink);background:#fff;line-height:1.6;-webkit-user-select:none;-moz-user-select:none;user-select:none}input,textarea{-webkit-user-select:text;-moz-user-select:text;user-select:text}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:1080px;margin:0 auto;padding:0 20px}.nav{display:flex;align-items:center;justify-content:space-between;padding:18px 0;border-bottom:1px solid var(--line)}.brand{font-weight:700;font-size:18px;color:var(--ink)}.brand span{color:var(--blue)}.nav-links{display:flex;gap:22px;font-size:14px}.nav-cta{background:var(--blue);color:#fff!important;padding:8px 16px;border-radius:8px;font-weight:600;text-decoration:none!important}.hero{padding:56px 0 40px;text-align:center}.badge{display:inline-block;background:var(--blue-soft);color:var(--blue-dark);border:1px solid #bfdbfe;font-size:13px;font-weight:600;padding:5px 12px;border-radius:999px;margin-bottom:18px}.hero h1{font-size:40px;line-height:1.25;margin:0 auto 14px;max-width:760px;letter-spacing:-.5px}.hero h1 em{font-style:normal;color:var(--red)}.hero p.sub{font-size:17px;color:var(--gray);max-width:680px;margin:0 auto 26px}.hero-cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.btn{display:inline-block;border-radius:10px;padding:12px 24px;font-size:15px;font-weight:600;text-decoration:none!important;cursor:pointer;border:none}.btn-primary{background:var(--blue);color:#fff}.btn-ghost{background:#fff;color:var(--blue-dark);border:1px solid #bfdbfe}.section{padding:52px 0;border-top:1px solid var(--line)}.section-title{font-size:26px;margin:0 0 6px;text-align:center}.section-sub{text-align:center;color:var(--gray);font-size:15px;margin:0 0 32px}.demo{background:var(--blue-soft);border:1px solid #bfdbfe;border-radius:16px;padding:28px}.demo-grid{display:grid;grid-template-columns:1.2fr 1fr;grid-gap:24px;gap:24px}@media (max-width:860px){.demo-grid{grid-template-columns:1fr}}.demo-rows{display:flex;flex-direction:column;gap:10px}.demo-row{display:grid;grid-template-columns:1.4fr .5fr .9fr .6fr 32px;grid-gap:8px;gap:8px;align-items:center}.demo-row input{width:100%;padding:8px 10px;border:1px solid #cbd5e1;border-radius:8px;font-size:14px}.demo-row .del{border:none;background:transparent;color:var(--red);font-size:18px;cursor:pointer}.demo-add{margin-top:12px;background:#fff;border:1px dashed #94a3b8;color:var(--blue-dark);border-radius:8px;padding:8px;width:100%;font-size:14px;cursor:pointer}.result-cards{display:flex;flex-direction:column;gap:12px}.result-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px}.result-card .label{font-size:13px;color:var(--gray)}.result-card .value{font-size:28px;font-weight:700}.result-card.good{border-color:#86efac}.result-card.bad{border-color:#fca5a5;background:var(--red-soft)}.diff-chip{display:inline-block;font-size:12px;font-weight:700;border-radius:999px;padding:3px 10px;margin-top:6px}.diff-chip.red{background:var(--red);color:#fff}.diff-chip.green{background:var(--green);color:#fff}.demo-note{font-size:12px;color:var(--gray);margin-top:14px}.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:16px;gap:16px}@media (max-width:860px){.pain-grid{grid-template-columns:1fr}}.pain-card{border:1px solid var(--line);border-radius:var(--radius);padding:20px;background:#fff}.pain-card h3{margin:0 0 8px;font-size:16px}.pain-card p{margin:0;font-size:14px;color:var(--gray)}.quote-card{border-left:4px solid var(--blue);background:#f9fafb;border-radius:0 10px 10px 0;padding:16px 20px;margin-bottom:14px;font-size:14px}.quote-card .en{font-style:italic;color:var(--ink);margin-bottom:6px}.quote-card .meta{font-size:12px;color:var(--gray)}.price-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:16px;gap:16px}@media (max-width:860px){.price-grid{grid-template-columns:1fr}}.price-card{border:1px solid var(--line);border-radius:var(--radius);padding:24px 20px;text-align:center;background:#fff}.price-card.featured{border-color:var(--blue);box-shadow:0 4px 16px rgba(37,99,235,.12)}.price-card .plan{font-weight:600;font-size:15px}.price-card .amount{font-size:32px;font-weight:700;margin:8px 0 2px}.price-card .per{font-size:13px;color:var(--gray)}.price-card ul{text-align:left;font-size:13px;color:#374151;padding-left:18px;line-height:2}.price-card .btn{margin-top:14px;width:100%}.faq-item{max-width:720px;margin:0 auto 14px;border:1px solid var(--line);border-radius:10px;padding:14px 18px}.faq-item h4{margin:0 0 6px;font-size:15px}.faq-item p{margin:0;font-size:14px;color:var(--gray)}.waitlist-form{max-width:460px;margin:0 auto;display:flex;gap:10px}.waitlist-form input{flex:1 1;padding:12px 14px;border:1px solid #cbd5e1;border-radius:10px;font-size:15px}.form-msg{text-align:center;font-size:14px;margin-top:12px}.form-msg.ok{color:var(--green)}.form-msg.err{color:var(--red)}.footer{border-top:1px solid var(--line);padding:26px 0 40px;font-size:12px;color:var(--gray);text-align:center}.footer a{color:var(--gray);text-decoration:underline}.admin-wrap{max-width:960px;margin:0 auto;padding:32px 20px}.admin-banner{border-radius:10px;padding:12px 16px;font-size:14px;margin-bottom:20px}.admin-banner.whitelist{background:var(--green-soft);border:1px solid #86efac;color:#166534}.admin-banner.paid{background:var(--blue-soft);border:1px solid #bfdbfe;color:var(--blue-dark)}.admin-banner.free{background:var(--amber-soft);border:1px solid #fde047;color:var(--amber)}.admin-cards{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:14px;gap:14px}@media (max-width:760px){.admin-cards{grid-template-columns:1fr}}.admin-card{border:1px dashed #cbd5e1;border-radius:10px;padding:18px;background:#fafafa}.admin-card h3{margin:0 0 6px;font-size:15px}.admin-card p{margin:0;font-size:13px;color:var(--gray)}.admin-card .todo{font-size:12px;color:var(--amber);margin-top:8px}.gate{text-align:center;padding:48px 20px}.gate h1{font-size:26px}.gate p{color:var(--gray);max-width:520px;margin:12px auto 24px}