:root{
      --ink:#3f352e;
      --muted:#796b61;
      --paper:#f0f0ef;
      --sheet:#ffffff;
      --rose:#c95f4e;
      --rose-dark:#a84638;
      --green:#778466;
      --blue:#176cff;
      --blue-dark:#0b3f9e;
      --line:rgba(63,53,46,.16);
    }
    *{box-sizing:border-box}
    html,body{width:100%;height:100%;margin:0;overflow:hidden}
    body{
      color:var(--ink);
      background:var(--paper);
      font-family:"PingFang SC","Noto Sans CJK SC",sans-serif;
    }
    button,a{font:inherit}
    button{color:inherit}
    a{color:inherit;text-decoration:none}
    .page{
      width:100%;
      height:100dvh;
      display:grid;
      grid-template-rows:68px 1fr 58px;
      padding:0 clamp(18px,3vw,52px);
      position:relative;
      isolation:isolate;
    }
    .nav{
      display:flex;
      align-items:center;
      justify-content:space-between;
      border-bottom:1px solid var(--line);
    }
    .brand{display:flex;align-items:center;gap:11px;font-weight:750;letter-spacing:-.03em}
    .brand img{width:38px;height:38px;border-radius:10px;box-shadow:0 5px 16px rgba(63,53,46,.16)}
    .nav-links{display:flex;align-items:center;gap:24px;font-size:12px;color:var(--muted)}
    .nav-links a:hover{color:var(--ink)}
    .hero{
      min-height:0;
      display:grid;
      grid-template-rows:auto minmax(0,1fr);
      gap:clamp(10px,2vh,22px);
      align-items:stretch;
    }
    .copy{
      padding:clamp(16px,2.5vh,25px) clamp(0px,1.2vw,18px) 0;
      display:flex;
      flex-direction:column;
      align-items:center;
      justify-content:center;
      gap:48px;
      text-align:center;
    }
    .title-block{min-width:max-content}
    h1{
      margin:0;
      font:600 clamp(54px,5.5vw,82px)/.92 "STZhongsong","Songti SC","STSong",serif;
      letter-spacing:-.065em;
    }
    .download-options{width:min(560px,100%)}
    .downloads{display:flex;gap:12px;width:100%;margin:0 auto}
    .download-meta{width:100%;margin-top:14px;display:flex;align-items:center;gap:6px;padding-inline:2px;color:var(--muted);font-size:10px;line-height:1.5;white-space:nowrap}
    .checksum-trigger{padding:6px 0;border:0;background:none;color:inherit;cursor:pointer}
    .checksum-trigger:hover{color:var(--blue-dark)}
    .checksum-trigger:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:3px}
    .checksum-dialog{width:min(420px,calc(100vw - 32px));max-height:calc(100dvh - 32px);padding:24px;border:1px solid var(--line);border-radius:22px;background:var(--sheet);color:var(--ink);box-shadow:0 24px 80px rgba(47,38,32,.24)}
    .checksum-dialog::backdrop{background:rgba(47,38,32,.4);backdrop-filter:blur(5px)}
    .checksum-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}
    .checksum-heading h2{margin:0;font-size:20px;font-weight:650;letter-spacing:-.03em}
    .checksum-close{flex:none;width:40px;height:40px;margin:-8px -8px -8px 0;border:0;border-radius:50%;background:var(--paper);font-size:24px;cursor:pointer}
    #checksum-description{margin:14px 0 24px;color:var(--muted);font-size:12px}
    .checksum-value{padding:16px;border:1px solid var(--line);border-radius:12px;background:var(--paper)}
    .checksum-value span{display:block;margin-bottom:8px;color:var(--muted);font-size:11px;letter-spacing:.04em}
    .checksum-value code{display:block;font:12px/1.7 ui-monospace,SFMono-Regular,Menlo,monospace;overflow-wrap:anywhere;user-select:all}
    .checksum-copy{width:100%;min-height:44px;margin-top:20px;border:0;border-radius:12px;background:var(--blue);color:white;font-size:14px;font-weight:600;cursor:pointer}
    .checksum-copy:hover{background:var(--blue-dark)}
    .checksum-status{min-height:18px;margin:10px 0 0;color:var(--muted);font-size:12px;line-height:1.5;text-align:center}
    body.checksum-open{overflow:hidden}
    .download{
      flex:1;
      min-width:0;
      min-height:72px;
      border:2px solid var(--blue);
      padding:0 20px;
      display:flex;
      align-items:center;
      gap:12px;
      cursor:pointer;
      text-align:left;
      border-radius:19px;
      transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
    }
    .download.primary{background:var(--blue);color:var(--sheet);box-shadow:0 8px 0 var(--blue-dark)}
    .download.secondary{background:var(--sheet);color:var(--blue-dark);box-shadow:0 5px 0 rgba(11,63,158,.2)}
    .download:hover{transform:translateY(-3px)}
    .download.primary:hover{box-shadow:0 11px 0 var(--blue-dark)}
    .download.secondary:hover{background:#f8fbff;box-shadow:0 8px 0 rgba(11,63,158,.24)}
    .store-mark{font-size:28px;line-height:1;width:30px;text-align:center}
    .download b{display:block;font-size:16px;line-height:1.25}
    .download small{display:block;margin-top:3px;font-size:9px;letter-spacing:.08em;opacity:.64}
    .gallery{
      height:auto;
      min-height:0;
      display:grid;
      grid-template-columns:repeat(5,minmax(0,1fr));
      grid-template-rows:minmax(0,1fr);
      gap:clamp(7px,1vw,16px);
      align-items:center;
      position:relative;
      padding:0 clamp(0px,1.2vw,18px) clamp(8px,1.8vh,18px);
    }
    .screen{
      min-width:0;
      min-height:0;
      height:100%;
      margin:0;
      padding:0;
      border:0;
      outline:0;
      background:transparent;
      position:relative;
      display:flex;
      flex-direction:column;
      align-items:center;
      justify-content:flex-end;
      gap:8px;
      animation:arrive .7s both cubic-bezier(.2,.72,.25,1);
    }
    .screen:nth-child(2){animation-delay:.06s}
    .screen:nth-child(3){animation-delay:.12s}
    .screen:nth-child(4){animation-delay:.18s}
    .screen:nth-child(5){animation-delay:.24s}
    .screen img{
      display:block;
      min-height:0;
      width:auto;
      height:auto;
      max-width:100%;
      max-height:calc(100% - 24px);
      object-fit:contain;
      border-radius:clamp(12px,1.2vw,21px);
      filter:drop-shadow(0 11px 12px rgba(63,53,46,.12));
    }
    .screen-label{height:16px;color:var(--muted);font-size:11px;line-height:16px;letter-spacing:.03em;white-space:nowrap}
    @keyframes arrive{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
    .footer{
      border-top:1px solid var(--line);
      display:grid;
      grid-template-columns:1fr;
      grid-template-rows:1fr 1fr;
      align-items:center;
      gap:0;
      position:relative;
      color:var(--muted);
      font-size:9px;
      letter-spacing:.02em;
    }
    .legal-links,.filings{display:flex;align-items:center;gap:14px;white-space:nowrap}
    .legal-links,.filings{justify-content:center}
    .copyright{position:absolute;left:0;top:50%;transform:translateY(-50%)}
    .footer a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
    @media(max-width:1050px){
      .page{grid-template-rows:54px 1fr 52px;padding:0 10px}
      .brand img{width:32px;height:32px;border-radius:8px}
      .nav-links{gap:13px;font-size:10px}
      .hero{grid-template-rows:auto 1fr;gap:7px}
      .copy{padding:9px 2px 0;gap:26px}
      h1{font-size:40px;line-height:.9}
      .download-options{width:min(430px,100%)}
      .downloads{gap:8px;margin-top:1px}
      .download-meta{margin-top:12px}
      .download{min-height:55px;padding:0 12px;gap:8px;border-radius:14px}
      .download.primary{box-shadow:0 5px 0 var(--blue-dark)}
      .store-mark{font-size:19px;width:21px}.download b{font-size:11px}.download small{font-size:7px}
      .gallery{height:auto;min-height:0;gap:4px;align-items:center;padding:5px 0 6px}
      .screen,.screen:nth-child(n){height:100%;gap:6px}
      .screen img{width:auto;height:auto;max-width:100%;max-height:calc(100% - 19px);border-radius:9px}
      .screen-label{height:13px;font-size:8px;line-height:13px}
      .footer{gap:3px;align-content:center;font-size:7px}
      .copyright{display:none}
      .legal-links,.filings{justify-content:center;gap:9px}
    }
    @media(max-width:560px){
      .copy{gap:22px}
      .download-options{width:100%;max-width:none}
      .download{min-height:50px}
      .gallery{gap:2px}
      .screen,.screen:nth-child(n){gap:4px}
      .screen img{max-height:calc(100% - 17px)}
      .screen-label{font-size:6px;letter-spacing:0}
      .footer{font-size:6px}
      .legal-links,.filings{gap:6px}
    }
    @media(prefers-reduced-motion:reduce){.screen{animation:none}.screen,.download{transition:none}}

    @media(max-width:1050px) and (orientation:portrait){
      html,body{height:auto;overflow:visible}
      .page{height:auto;min-height:100dvh;display:flex;flex-direction:column;padding:0 clamp(18px,4vw,32px)}
      .nav{min-height:64px;flex-shrink:0}
      .hero{display:flex;flex-direction:column;gap:30px;padding-bottom:32px}
      .copy{padding:26px 0 0;gap:24px}
      h1{font-size:clamp(42px,11vw,62px);line-height:1.05}
      .download-options{width:min(480px,100%)}
      .downloads{width:100%;gap:10px}
      .download{min-height:58px;padding:0 12px;gap:8px}
      .download b{font-size:13px}
      .download small{font-size:8px}
      .download-meta{font-size:10px}
      .gallery{display:block;width:min(580px,100%);height:auto;aspect-ratio:.76;margin:0 auto;padding:0;isolation:isolate}
      .gallery::before{content:"";position:absolute;inset:15% 2% auto;aspect-ratio:1;border-radius:50%;background:rgba(102,116,90,.14);z-index:-1}
      .screen,.screen:nth-child(n){display:none;position:absolute;width:56%;height:auto;gap:0;animation:none}
      .screen:nth-child(2){display:block;left:7%;top:6%}
      .screen:nth-child(5){display:block;right:7%;top:1%;z-index:1}
      .screen img{width:100%;height:auto;max-height:none;border-radius:clamp(16px,4.5vw,30px);filter:none;box-shadow:0 22px 40px rgba(36,50,41,.2)}
      .screen:nth-child(2) img{transform:rotate(-7deg)}
      .screen:nth-child(5) img{transform:rotate(7deg)}
      .screen-label{display:none}
      .footer{min-height:76px;margin-top:auto;padding:14px 0;gap:10px;font-size:9px}
      .legal-links{flex-wrap:wrap;gap:8px 12px;white-space:normal}
      .filings{font-size:9px}
    }
    @media(max-width:360px) and (orientation:portrait){
      .download{padding:0 9px;gap:6px}
      .download b{font-size:11px}
      .store-mark{width:18px;font-size:18px}
    }