:root{color-scheme:light;--ink:#34291e;--muted:#82715e;--line:#ebddca;--orange:#ad4a00;--paper:#fffdfa;--cream:#faf6ef}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;min-height:100svh;display:flex;flex-direction:column;color:var(--ink);background:radial-gradient(ellipse at 50% 35%,#fffdf9 0%,var(--cream) 70%);font:16px/1.65 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif}
a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}
a:focus-visible,button:focus-visible{outline:3px solid #b66522;outline-offset:4px}
.site-header,main,footer{width:min(1040px,calc(100% - 48px));margin:0 auto}
.site-header{height:88px;flex-shrink:0;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:11px}.brand strong{font-size:22px;letter-spacing:2px}
img{display:block;object-fit:contain}.header-label{color:var(--muted);font-size:13px}
main{flex:1;display:grid;place-items:center;padding:48px 0}
.download-card{width:min(100%,456px);padding:36px 36px 32px;background:var(--paper);border:1px solid var(--line);border-radius:24px;box-shadow:0 18px 64px #82501c0d;text-align:center}
.product-mark{margin:0 auto 18px}
.eyebrow{display:block;font-size:12px;font-weight:600;letter-spacing:2px;color:var(--orange)}
h1{font-size:30px;line-height:1.4;margin:10px 0 8px;letter-spacing:1px}
.platform{color:var(--muted);font-size:14px;margin:0}
dl{display:flex;justify-content:center;gap:22px;font-size:13px;margin:24px 0 24px}
dl div{display:flex;gap:8px}dt{color:var(--muted)}dd{margin:0}
.release-status{color:var(--muted);min-height:22px;font-size:13px;margin:20px 0 12px}
.download-button,.notice-confirm{display:flex;justify-content:center;align-items:center;gap:18px;min-height:52px;width:100%;padding:12px 18px;border:1px solid #a74b0b;border-radius:12px;background:linear-gradient(120deg,#c06316,#a94709);color:#fffaf3;font-weight:650;box-shadow:0 6px 16px #a7480919}
.download-button:hover,.notice-confirm:hover{background:linear-gradient(120deg,#af540b,#963d04)}
.download-button.disabled{background:#eee7dc;border-color:#e5dace;color:#82715e;box-shadow:none;pointer-events:none;cursor:default}
footer{border-top:1px solid var(--line);padding:20px 0 25px;text-align:center;color:var(--muted);font-size:12px;letter-spacing:1px}
.notice-open{overflow:hidden}
dialog{width:min(500px,calc(100% - 36px));max-height:calc(100vh - 36px);max-height:calc(100svh - 36px);margin:auto;padding:32px;border:1px solid #e9d2af;border-radius:22px;background:var(--paper);color:var(--ink);box-shadow:0 28px 100px #39260f40;overflow:auto}
dialog::backdrop{background:#2f241b73;backdrop-filter:blur(5px)}
.notice-close{position:absolute;right:14px;top:12px;display:grid;place-items:center;width:36px;height:36px;padding:0;border:0;border-radius:50%;background:transparent;color:var(--muted);font-size:28px;line-height:1}
.notice-close:hover{background:#f3e8d8;color:var(--orange)}
.notice-heading{text-align:center;padding:0 0 19px;border-bottom:1px solid var(--line)}
.notice-heading img{margin:0 auto 13px}.notice-heading h2{font-size:26px;letter-spacing:2px;line-height:1.4;margin:8px 0 0}
.notice-copy{font-size:15px;line-height:1.9;color:#6a5845;padding:17px 0 22px}
.notice-copy p{margin:0}.notice-copy p+p{margin-top:10px}
.notice-confirm{min-height:50px}
[hidden]{display:none!important}
@media(max-width:520px){.site-header,main,footer{width:calc(100% - 36px)}.site-header{height:74px}main{padding:30px 0}.download-card{padding:30px 24px;border-radius:20px}h1{font-size:27px}dialog{padding:28px 24px 24px}.notice-heading h2{font-size:24px}.notice-copy{font-size:14px;padding-bottom:20px}}