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/* Support documents are separate from the introduction. */
.document{max-width:960px;margin:60px auto;padding:0 28px;overflow-wrap:anywhere}.document h1{font:42px/1.5 var(--serif);color:var(--gold);margin-bottom:25px}.document h2{font-size:28px;color:var(--gold);margin:44px 0 15px}.document h3{font-size:23px;color:var(--gold);margin:25px 0 12px}.document p,.document ol,.document ul{margin-bottom:22px}.document li{margin-bottom:10px}.document a{color:var(--gold)}.document code{background:#142e28;padding:3px 6px}.document table{border-collapse:collapse;width:100%;font-size:16px}.document th,.document td{border-bottom:1px solid var(--line);text-align:left;padding:12px}.document img{max-width:100%;height:auto}.document figure{margin-block:28px}.document figcaption{font-size:14px;color:var(--muted)}.document details{padding-block:16px}summary{cursor:pointer}.anchor-alias{scroll-margin-top:25px}html[lang="zh-Hans"]{--sans:NotoSansSC,"Microsoft YaHei","PingFang SC",sans-serif;--serif:NotoSerifSC,"Songti SC","SimSun",serif}
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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}

.private-download{max-width:760px;margin:0 auto;padding:100px 28px;min-height:100vh}.private-download .brand{display:inline-block;font-size:30px;margin-bottom:40px}.private-download form{max-width:440px;margin:30px 0}.private-download label{display:block;margin:0 0 12px}.private-download input[type=password]{width:100%;min-height:52px;padding:12px 16px;background:#071f19;border:1px solid #bca674;color:#f4eedf;font:inherit;margin-bottom:20px;border-radius:0}.private-platforms{display:grid;gap:18px;margin:38px 0}.private-platforms .button{justify-content:space-between}.auth-error{color:#f3b3a6}.private-home{margin-top:60px}

/* Official title and subtitle remain legible on narrow screens. */
.hero h1 .title-subtitle{display:block;font-family:"Noto Sans JP",sans-serif;font-size:clamp(18px,2.4vw,28px);font-weight:500;line-height:1.6;letter-spacing:.06em;margin:12px 0 26px}