:root{--amber: #fdc147;--amber-ink: #f2a61e;--amber-wash: #fff7e6;--ink: #16181d;--ink-2: #3f434b;--muted: #71767f;--line: #ebe9e3;--bg: #ffffff;--bg-alt: #faf9f6;--radius: 14px;--maxw: 1120px;--ease: cubic-bezier(.22,.61,.36,1)}*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei UI,system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}h1,h2,h3{letter-spacing:-.02em;line-height:1.12;margin:0}p{margin:0}a{color:inherit;text-decoration:none}.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}.eyebrow{font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--amber-ink)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:inherit;font-weight:650;font-size:15px;cursor:pointer;padding:12px 22px;border-radius:10px;border:1px solid transparent;transition:transform .12s var(--ease),background .15s var(--ease),border-color .15s var(--ease)}.btn-primary{background:var(--amber-ink);color:#231a05}.btn-primary:hover{background:#e09a14;transform:translateY(-1px)}.btn-dark{background:var(--ink);color:#fff}.btn-dark:hover{background:#000;transform:translateY(-1px)}.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}.btn-ghost:hover{border-color:#d8d5cc;background:var(--bg-alt)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-lg{padding:14px 28px;font-size:16px}.nav{position:sticky;top:0;z-index:20;background:#fffc;backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line)}.nav-in{display:flex;align-items:center;justify-content:space-between;height:66px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.01em}.brand img{width:32px;height:32px}.nav-links{display:flex;align-items:center;gap:30px}.nav-links a{font-size:14.5px;color:var(--ink-2);font-weight:550}.nav-links a:hover{color:var(--ink)}.hero{padding:92px 0 72px;text-align:center}.hero h1{font-size:60px;font-weight:800}.hero h1 .amb{color:var(--amber-ink)}.hero .lead{font-size:20px;color:var(--ink-2);max-width:620px;margin:22px auto 0}.hero .cta{display:flex;gap:12px;justify-content:center;margin-top:34px;flex-wrap:wrap}.hero .note{margin-top:16px;font-size:13.5px;color:var(--muted)}.hero-visual{margin:56px auto 0;max-width:900px}section{padding:92px 0}.section.alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.head{text-align:center;max-width:640px;margin:0 auto 56px}.head h2{font-size:36px;font-weight:800}.head p{margin-top:14px;font-size:17px;color:var(--muted)}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.feat .ico{width:44px;height:44px;color:var(--amber-ink);margin-bottom:18px}.feat h3{font-size:18.5px;font-weight:700}.feat p{margin-top:8px;color:var(--muted);font-size:15px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.stat{background:var(--bg);padding:30px 22px;text-align:center}.section.alt .stat{background:var(--bg-alt)}.stat .n{font-size:34px;font-weight:800;letter-spacing:-.02em}.stat .n.up{color:#1f9d55}.stat .n.dn{color:var(--amber-ink)}.stat .l{margin-top:6px;font-size:14px;color:var(--muted)}.stat .s{margin-top:2px;font-size:12px;color:#9a9ea6}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;counter-reset:step}.step{position:relative;padding-top:14px}.step .k{font-size:13px;font-weight:800;color:var(--amber-ink);letter-spacing:.06em}.step h3{font-size:18px;font-weight:700;margin-top:10px}.step p{margin-top:8px;color:var(--muted);font-size:15px}.plans{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;max-width:760px;margin:0 auto}.plan{background:var(--bg);border:1px solid var(--line);border-radius:18px;padding:32px;position:relative}.plan.featured{border-color:var(--amber);box-shadow:0 0 0 3px var(--amber-wash)}.plan .tag{position:absolute;top:18px;right:18px;font-size:12px;font-weight:700;color:var(--amber-ink);background:var(--amber-wash);padding:4px 10px;border-radius:20px}.plan .name{font-size:15px;font-weight:650;color:var(--ink-2)}.plan .price{font-size:46px;font-weight:800;margin:10px 0 2px}.plan .price small{font-size:16px;color:var(--muted);font-weight:600}.plan ul{list-style:none;padding:0;margin:20px 0 26px}.plan li{padding:7px 0 7px 26px;position:relative;font-size:14.5px;color:var(--ink-2)}.plan li:before{content:"";position:absolute;left:0;top:13px;width:14px;height:8px;border-left:2px solid var(--amber-ink);border-bottom:2px solid var(--amber-ink);transform:rotate(-45deg)}.faq{max-width:760px;margin:0 auto}.qa{border-bottom:1px solid var(--line);padding:22px 0}.qa h3{font-size:16.5px;font-weight:650}.qa p{margin-top:8px;color:var(--muted);font-size:15px}footer{border-top:1px solid var(--line);padding:40px 0;color:var(--muted);font-size:13px}.foot-in{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}footer a:hover{color:var(--ink)}.mask{position:fixed;inset:0;background:#100e0875;backdrop-filter:blur(2px);display:flex;align-items:center;justify-content:center;z-index:60;padding:16px}.modal{background:#fff;border-radius:18px;width:100%;max-width:460px;padding:28px;box-shadow:0 24px 70px #00000047;max-height:92vh;overflow:auto}.modal h3{font-size:21px;font-weight:750}.modal .sub{color:var(--muted);font-size:14px;margin-top:4px}.xbtn{float:right;cursor:pointer;border:none;background:none;font-size:22px;line-height:1;color:var(--muted)}.plan-pick{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:18px 0}.pp{border:1.5px solid var(--line);border-radius:12px;padding:14px;cursor:pointer;text-align:center;transition:border-color .12s,background .12s}.pp:hover{border-color:#d8d5cc}.pp.on{border-color:var(--amber-ink);background:var(--amber-wash)}.pp .pn{font-size:13px;color:var(--ink-2)}.pp .pv{font-size:24px;font-weight:800;margin-top:2px}.pp .pd{font-size:12px;color:var(--muted);margin-top:2px}.qr{text-align:center;padding:6px 0}.qr canvas{width:210px;height:210px;border:1px solid var(--line);border-radius:12px;padding:8px}.codes{margin:14px 0}.codebox{background:var(--amber-wash);border:1px solid var(--amber);border-radius:10px;padding:12px 14px;font-family:ui-monospace,Consolas,monospace;font-size:15px;letter-spacing:.04em;display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:8px}.codebox button{border:none;background:var(--amber-ink);color:#231a05;border-radius:7px;padding:6px 12px;font-size:12.5px;font-weight:650;cursor:pointer;white-space:nowrap}.err{color:#dc2626;font-size:14px;margin-top:6px}.ok{color:#1f9d55;font-size:14px}@media (max-width: 880px){.features,.stats,.steps{grid-template-columns:1fr}.stats{gap:1px}.plans{grid-template-columns:1fr}.hero h1{font-size:40px}.head h2{font-size:28px}.nav-links a:not(.btn){display:none}section{padding:60px 0}}