:root{--background:#0b0e14;--surface:#12161f;--foreground:#e9ecf1;--muted:#8b93a7;--border:#232a38;--primary:#f0b90b;--primary-ink:#1a1400;--error:#e74c3c;--gold-line:#fcd67f;--gold-text:#f6cd4b;--gold-surface:#121001;--gold-inner:inset 1px 1px 17.3px hsla(42,96%,73%,.52);--gold-fill:linear-gradient(90deg,#daa232,#fdeba1 50%,#dda535 89%);--ok-line:#6df496}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--background);color:var(--foreground);min-height:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,PingFang SC,Microsoft YaHei,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}.brand-badge{width:84px;height:84px;border-radius:22px;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,#f7d046,#f0b90b 45%,#c8930a);box-shadow:0 0 0 1px rgba(255,220,130,.45),0 10px 40px rgba(240,185,11,.35);font-weight:800;font-size:42px;line-height:1;color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.25);-webkit-user-select:none;-moz-user-select:none;user-select:none}.brand-badge--sm{width:40px;height:40px;border-radius:11px;font-size:21px}.backdrop{position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none;background:var(--background)}.backdrop:after,.backdrop:before{content:"";position:absolute;left:0;right:0;background-image:url(/backdrop.webp);background-repeat:no-repeat;background-size:cover}.backdrop:before{top:0;height:48%;background-position:top;-webkit-mask-image:linear-gradient(180deg,#000 72%,transparent);mask-image:linear-gradient(180deg,#000 72%,transparent)}.backdrop:after{bottom:0;height:56%;background-position:bottom;-webkit-mask-image:linear-gradient(0deg,#000 72%,transparent);mask-image:linear-gradient(0deg,#000 72%,transparent)}.page{position:relative;z-index:1;min-height:100vh;display:flex;flex-direction:column;align-items:center;padding:clamp(40px,11vh,88px) 20px 64px}.card{width:100%;max-width:420px}.page-title{margin:24px 0 4px;font-size:24px;font-weight:700}.page-sub{margin:0 0 24px;font-size:14px;color:var(--muted)}.field{margin-top:16px}.label{display:block;margin-bottom:8px;color:rgba(233,236,241,.9)}.input,.label{font-size:14px}.input{width:100%;border-radius:8px;border:1px solid var(--border);background:var(--surface);padding:12px 16px;color:var(--foreground);outline:none}.input:focus{border-color:var(--gold-line);background:var(--gold-surface);box-shadow:var(--gold-inner)}.input::placeholder{color:#5b6376}.input:focus::placeholder{color:#d6a63a}.input--locked{background:#0e121a;color:var(--muted);cursor:not-allowed;padding-right:40px}.input-wrap{position:relative;display:block}.lock-icon{position:absolute;right:14px;top:50%;transform:translateY(-50%);color:var(--muted);pointer-events:none}.hint{color:var(--muted)}.error,.hint{margin:6px 0 0;font-size:12px}.error{color:var(--error)}.agree{margin-top:18px;display:flex;align-items:flex-start;gap:8px;font-size:12px;color:rgba(233,236,241,.8)}.checkbox{margin-top:1px;width:16px;height:16px;flex-shrink:0;display:flex;align-items:center;justify-content:center;border-radius:4px;border:1px solid var(--border);background:var(--surface);cursor:pointer;padding:0}.checkbox--checked{background:var(--primary);border-color:var(--primary)}.submit{margin-top:20px;width:100%;border:none;border-radius:8px;background:var(--gold-fill);color:var(--primary-ink);min-height:47px;padding:13px 16px;font-size:15px;font-weight:700;cursor:pointer}.submit:disabled{opacity:.45;cursor:not-allowed}.notice{margin-top:16px;padding:12px 14px;border-radius:8px;border:1px solid var(--border);background:var(--surface);font-size:13px;color:var(--muted)}.banner-success{margin:20px 0 0;padding:14px 16px;border-radius:10px;border:1px solid var(--ok-line);background:rgba(56,162,95,.1);box-shadow:inset 0 2px 14px #00663a;color:#3fe07f;font-size:14px;font-weight:600;display:flex;align-items:center;gap:10px}.banner-check{flex-shrink:0;color:var(--ok-line)}.banner-success small{display:block;font-weight:400;color:var(--muted);margin-top:2px}.input--with-icon{padding-right:44px}.icon-btn,.icon-static{position:absolute;right:12px;top:50%;transform:translateY(-50%);display:flex;align-items:center;justify-content:center;color:var(--muted);background:none;border:none;padding:4px}.icon-btn{cursor:pointer}.icon-btn:hover{color:var(--foreground)}.icon-static{pointer-events:none}.alert{margin-top:16px;padding:12px 14px;border-radius:8px;border:1px solid var(--border);background:var(--surface)}.alert--error{border-color:rgba(231,76,60,.45);background:rgba(231,76,60,.08)}.alert--ok{border-color:rgba(53,196,106,.4);background:rgba(53,196,106,.08)}.alert-text{margin:0;font-size:13px;line-height:1.5;color:var(--foreground)}.alert--error .alert-text{color:#ff8a7a}.alert--ok 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var(--border);background:var(--surface);cursor:pointer}.dl-button--gold,.dl-button:hover{border-color:var(--gold-line)}.dl-button--gold{background:var(--gold-surface);box-shadow:var(--gold-inner)}.dl-badge{width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:rgba(240,185,11,.12);color:var(--primary);flex-shrink:0}.dl-copy{display:flex;flex-direction:column;align-items:flex-start;gap:2px}.dl-title{font-size:15px;font-weight:600}.dl-sub{font-size:12px}.dl-arrow,.dl-sub{color:var(--muted)}.dl-arrow{margin-left:auto;display:flex}.dl-disabled{opacity:.5;pointer-events:none}.brand-row{display:flex;align-items:center;gap:10px;align-self:flex-start}.brand-name{font-size:18px;font-weight:700;letter-spacing:.5px}.brand-name span{color:var(--primary)}.code-row{display:flex;gap:8px;align-items:stretch}.code-row .input{flex:1 1;min-width:0}.code-btn{flex-shrink:0;min-width:108px;border-radius:8px;border:1px solid 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