:root{color-scheme:light;--ink:#10182c;--muted:#69748b;--line:#dfe6f2;--blue:#316cff;--blue2:#1946d8;--cyan:#32d7ee;--green:#149b68;--red:#db4354;--amber:#b86a08;--panel:#fff}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:#f3f6fc;color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif}body:before{position:fixed;inset:0;z-index:-1;background:radial-gradient(circle at 10% 5%,rgba(49,108,255,.13),transparent 32%),radial-gradient(circle at 92% 15%,rgba(50,215,238,.13),transparent 27%),linear-gradient(180deg,#f8faff,#eef3fb);content:""}.page-shell{width:min(1120px,calc(100% - 40px));margin:auto}.topbar{height:84px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:12px;color:inherit;text-decoration:none}.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:13px;background:linear-gradient(145deg,var(--blue),var(--blue2));box-shadow:0 9px 24px rgba(49,108,255,.25);color:#fff;font-size:21px;font-weight:800}.brand strong,.brand small{display:block}.brand strong{font-size:17px;letter-spacing:.14em}.brand small{margin-top:3px;color:var(--muted);font-size:11px;letter-spacing:.08em}.secure{display:flex;align-items:center;gap:8px;color:#526079;font-size:13px}.secure i{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 5px rgba(20,155,104,.11)}.hero{position:relative;overflow:hidden;display:flex;min-height:220px;align-items:center;justify-content:space-between;margin-top:10px;padding:42px 54px;border-radius:26px;background:linear-gradient(122deg,#0d1838,#173c9e 64%,#176fc1);box-shadow:0 24px 54px rgba(18,46,109,.2);color:#fff}.hero:after{position:absolute;right:-80px;bottom:-160px;width:420px;height:420px;border:1px solid rgba(255,255,255,.12);border-radius:50%;content:""}.eyebrow{margin:0 0 12px;color:#7ce9fa;font-size:12px;font-weight:800;letter-spacing:.2em}.hero h1{margin:0;font-size:38px;letter-spacing:-.03em}.hero p:last-child{max-width:570px;margin:14px 0 0;color:#c8d7f6;line-height:1.8}.orbit{position:relative;z-index:1;display:grid;place-items:center;width:128px;height:128px;flex:0 0 128px;margin-left:40px;border:1px solid rgba(255,255,255,.22);border-radius:50%;box-shadow:inset 0 0 50px rgba(50,215,238,.12)}.orbit:before,.orbit:after{position:absolute;width:158px;height:54px;border:1px solid rgba(124,233,250,.32);border-radius:50%;content:"";transform:rotate(25deg)}.orbit:after{transform:rotate(-25deg)}.orbit span{position:absolute;top:17px;right:17px;width:10px;height:10px;border-radius:50%;background:var(--cyan);box-shadow:0 0 16px var(--cyan)}.orbit b{font-size:25px;letter-spacing:.1em}.redeem-card{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr);overflow:hidden;margin-top:24px;border:1px solid var(--line);border-radius:24px;background:var(--panel);box-shadow:0 20px 48px rgba(33,51,87,.08)}.form-side{padding:42px 48px}.result-side{display:flex;align-items:center;padding:42px;background:linear-gradient(145deg,#f7f9fe,#edf3ff);border-left:1px solid var(--line)}.step-title{display:flex;align-items:center;gap:13px}.step-title>span{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:#edf2ff;color:var(--blue);font-size:12px;font-weight:900}.step-title h2{margin:0;font-size:20px}.step-title p{margin:5px 0 0;color:var(--muted);font-size:13px}.divider{height:1px;margin:32px 0;background:var(--line)}label{display:block;margin:24px 0 9px;color:#3e4a62;font-size:13px;font-weight:750}textarea,input{width:100%;border:1px solid #d7dfec;border-radius:12px;background:#fbfcff;color:var(--ink);font:inherit;outline:none;transition:.18s}textarea{min-height:92px;padding:15px;resize:vertical;line-height:1.6}input{height:50px;padding:0 15px}textarea:focus,input:focus{border-color:#7b9fff;background:#fff;box-shadow:0 0 0 4px rgba(49,108,255,.1)}.hint{margin:9px 0 0;color:#7a8498;font-size:12px;line-height:1.6}.button{width:100%;height:50px;margin-top:16px;border:0;border-radius:12px;font:inherit;font-weight:800;cursor:pointer;transition:.18s}.button:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 9px 20px rgba(49,108,255,.16)}.button:disabled{cursor:not-allowed;opacity:.48}.primary{background:linear-gradient(135deg,var(--blue),var(--blue2));color:#fff}.secondary{border:1px solid #cad6ef;background:#f1f5ff;color:#2454d5}.empty-state,.result{width:100%;text-align:center}.shield{display:grid;place-items:center;width:64px;height:64px;margin:0 auto 18px;border-radius:20px;background:#e7f7f1;color:var(--green);font-size:28px;font-weight:900}.empty-state h3,.result h3{margin:0;font-size:22px}.empty-state p,.result-message{max-width:330px;margin:10px auto 0;color:var(--muted);font-size:13px;line-height:1.75}.hidden{display:none}.status{display:inline-flex;margin-bottom:16px;padding:7px 12px;border-radius:999px;background:#ddf5eb;color:var(--green);font-size:12px;font-weight:850}.status.bad{background:#ffe8eb;color:var(--red)}.status.used{background:#fff0dd;color:var(--amber)}dl{margin:28px 0 0;text-align:left}dl div{display:flex;align-items:center;justify-content:space-between;padding:15px 0;border-bottom:1px solid #dfe6f2}dt{color:var(--muted);font-size:13px}dd{margin:0;font-weight:800}.trust-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:20px}.trust-row>div{position:relative;padding:24px 26px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.72)}.trust-row span{position:absolute;right:18px;top:17px;color:#d5deef;font-size:23px;font-weight:900}.trust-row strong{display:block}.trust-row p{margin:7px 0 0;color:var(--muted);font-size:12px}footer{padding:34px 0 42px;color:#8a94a8;text-align:center;font-size:12px}@media(max-width:820px){.hero{padding:34px}.orbit{display:none}.hero h1{font-size:31px}.redeem-card{grid-template-columns:1fr}.result-side{min-height:330px;border-top:1px solid var(--line);border-left:0}.trust-row{grid-template-columns:1fr}}@media(max-width:520px){.page-shell{width:min(100% - 24px,1120px)}.topbar{height:72px}.hero{min-height:190px;padding:28px 24px;border-radius:20px}.hero h1{font-size:27px}.form-side,.result-side{padding:30px 24px}.redeem-card{border-radius:20px}.step-title p{font-size:12px}}