:root{color-scheme:light;--red:#ae2d16;--ink:#302623;--muted:#8a7770;--line:#eaddd6}
*{box-sizing:border-box}
body{margin:0;min-height:100svh;color:var(--ink);font:15px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;background:radial-gradient(ellipse at 85% 0%,#edc9ba90,transparent 60%),linear-gradient(165deg,#f9efea,#f7f5f2 65%,#efe6e0)}
a{color:inherit;text-decoration:none}button{font:inherit}a,button{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible{outline:3px solid #ae2d1666;outline-offset:4px}
.download-shell{width:min(100% - 40px,660px);margin:auto;padding:24px 0 30px;min-height:100svh;display:flex;flex-direction:column}
.back{align-self:flex-start;color:#776c66;display:inline-flex;align-items:center;gap:8px;min-height:44px;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:22px}.back svg{display:block;width:20px;height:20px;flex:0 0 20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.back span{display:block;font-size:14px;font-weight:500;letter-spacing:1.5px;line-height:22px}
.brand{text-align:center;padding:24px 0 32px}.pt-logo{display:inline-grid;place-items:center;width:76px;height:76px;border-radius:20px;background:var(--red);color:white;font-size:31px;letter-spacing:1px;font-weight:750;line-height:1;box-shadow:0 10px 26px #ae2d1624}
.brand p{margin:14px 0 0;color:var(--muted);font-size:13px;letter-spacing:3px}
.portal-links{border-top:1px solid var(--line);padding-top:28px;display:grid;gap:16px}.portal-links a{display:flex;justify-content:center;align-items:center;position:relative;min-height:58px;padding:14px 42px;border:1px solid #d9b9ad;border-radius:40px;background:#ffffffed;box-shadow:0 5px 14px #7644320b;font-weight:600;letter-spacing:2px;transition:transform .15s,box-shadow .15s}.portal-links a:hover{transform:translateY(-2px);box-shadow:0 7px 20px #76443219}.portal-links b{position:absolute;right:22px;font-size:25px;font-weight:400;color:var(--red)}
.portal-links a>span{width:var(--portal-label-width,auto);max-width:100%;text-align:left}
.page-footer{margin-top:auto;text-align:center;padding-top:44px;font-size:11px;color:#ad958a;letter-spacing:2px}.support{text-align:center;color:var(--muted);font-size:13px;white-space:pre-line;overflow-wrap:anywhere;margin:26px 0 0}
.support strong,.support span{display:block}.support strong{font-size:14px;font-weight:600;margin-bottom:9px;letter-spacing:1px}.support span{width:max-content;max-width:100%;margin-inline:auto;text-align:left;line-height:1.9;letter-spacing:.3px}
.detail-card{border:1px solid var(--line);background:#ffffffd9;border-radius:24px;padding:28px}.eyebrow{color:var(--red);font-size:11px;letter-spacing:3px;margin:0 0 10px}.detail-card h2{font-size:27px;line-height:1.5;margin:0 0 12px}.intro{color:var(--muted);margin:0 0 24px}.device-links{display:grid;grid-template-columns:1fr 1fr;gap:12px}.device-links a{display:flex;flex-direction:column;align-items:flex-start;padding:18px;border:1px solid var(--line);border-radius:16px;background:#faf5f2}.device-links b{font-size:17px}.device-links small{color:var(--muted);font-size:12px}.device-mark{font-size:11px;color:var(--red);letter-spacing:1px;margin-bottom:8px}.help{margin:28px 0 0}.help h3{font-size:17px;margin:0 0 12px}.help details{border-top:1px solid var(--line);padding:14px 0}.help summary{cursor:pointer;font-size:14px}.help details p{color:var(--muted);font-size:13px;margin:10px 0 0}.action{display:block;text-align:center;padding:13px 18px;min-height:50px;border:0;border-radius:14px;background:var(--red);color:white;font-size:15px;font-weight:600;letter-spacing:1px;width:100%;cursor:pointer}.action:disabled{background:#e8dfda;color:#9a8980;cursor:default}.secondary-action{display:block;text-align:center;margin-top:16px;color:var(--red);font-size:14px}.download-status{font-size:13px;color:var(--muted);margin:14px 0 0;white-space:pre-line}.steps{list-style:none;padding:0;margin:24px 0;counter-reset:step}.steps li{position:relative;padding:0 0 23px 40px;counter-increment:step}.steps li::before{content:counter(step);position:absolute;top:1px;left:0;width:26px;height:26px;display:grid;place-items:center;border-radius:50%;background:#f5e7df;color:var(--red);font-size:12px;font-weight:700}.steps b{font-size:15px}.steps p{color:var(--muted);font-size:13px;margin:5px 0 0}.safety-note{font-size:12px;padding:14px 16px;border-radius:12px;background:#faf4ef;color:#8d7569;margin:20px 0}
@media(max-width:420px){.download-shell{width:calc(100% - 32px);padding-top:16px}.brand{padding:18px 0 26px}.detail-card{padding:22px 19px}.detail-card h2{font-size:23px}.device-links a{padding:16px 12px}.portal-links{gap:14px}.portal-links a{font-size:14px}.page-footer{padding-top:32px}}
@media(prefers-reduced-motion:reduce){.portal-links a{transition:none}}
.ios-download-actions{display:grid;grid-auto-rows:1fr;gap:12px}
.ios-download-actions [data-download-action]{display:flex}
.ios-download-actions .action{display:flex;align-items:center;justify-content:center;height:100%;min-height:54px;padding:13px 8px;border:1px solid var(--red);background:transparent;color:var(--red);font-size:clamp(8px,3.1vw,15px);line-height:1.6;letter-spacing:.8px;white-space:nowrap}
.ios-download-actions .action:disabled{border-color:var(--red);background:transparent;color:var(--red);opacity:.5}
.manual-apple-copy{display:block;width:100%;min-height:88px;margin-top:12px;padding:12px;border:1px solid var(--line);border-radius:10px;background:white;color:var(--ink);font-family:inherit;font-size:13px;line-height:1.6;resize:vertical;overflow-wrap:anywhere}
/* Center the complete entrance group, not each item separately. Short screens scroll normally. */
.download-shell[data-download-view="portal"]{position:relative;display:grid;grid-template-rows:1fr auto 1fr;padding-top:max(76px,calc(env(safe-area-inset-top,0px) + 60px));padding-bottom:max(76px,calc(env(safe-area-inset-bottom,0px) + 60px))}
[data-download-view="portal"] .back{position:absolute;top:max(12px,env(safe-area-inset-top,0px));left:0}
[data-download-view="portal"] .portal-group{grid-row:2;min-width:0}
[data-download-view="portal"] .brand{padding-top:0}
[data-download-view="portal"] .support{margin-top:44px}
[data-download-view="portal"] .page-footer{grid-row:3;align-self:end;margin-top:24px;padding-top:0}