*{box-sizing:border-box;margin:0;padding:0}
:root{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:#111;background:#fff}
body{min-height:100vh;background:linear-gradient(180deg,#eaf2ff 0,#f7faff 46%,#fff 72%)}
.page{width:100%;min-height:100vh;display:grid;place-items:center;padding:28px}
.card{width:min(600px,100%);min-height:760px;padding:72px 54px 58px;display:flex;flex-direction:column;align-items:center;text-align:center}
.halo{width:220px;height:220px;margin-bottom:86px;border-radius:50%;display:grid;place-items:center;background:#fff;box-shadow:0 0 78px 26px rgba(78,142,245,.13)}
.shield{width:124px;height:144px;position:relative;border-radius:25px 25px 62px 62px;background:linear-gradient(145deg,#9bed69 0,#53d139 58%,#31b923 100%);box-shadow:0 22px 32px rgba(62,190,45,.24);clip-path:polygon(50% 0,94% 15%,94% 56%,88% 72%,76% 85%,50% 100%,24% 85%,12% 72%,6% 56%,6% 15%)}
.shield:after{content:"";position:absolute;inset:5px;background:linear-gradient(145deg,rgba(255,255,255,.26),transparent 56%);clip-path:inherit}
.shield span{position:absolute;left:38px;top:54px;width:51px;height:25px;border-left:10px solid #fff;border-bottom:10px solid #fff;border-radius:5px;transform:rotate(-45deg);z-index:2}
h1{font-size:42px;line-height:1.25;font-weight:500;letter-spacing:.02em}
p{margin-top:12px;color:#655d57;font-size:29px;line-height:1.5;font-weight:400}
.enter{width:100%;height:82px;margin-top:88px;border-radius:11px;display:flex;align-items:center;justify-content:center;color:#fff;background:#3d7df0;font-size:32px;font-weight:500;text-decoration:none;box-shadow:0 16px 36px rgba(61,125,240,.18);transition:transform .18s ease,filter .18s ease}
.enter:hover{filter:brightness(1.04);transform:translateY(-1px)}
.enter:active{transform:translateY(1px)}
.enter.loading{pointer-events:none;opacity:.78}
.backup-entries{width:100%;margin-top:24px;color:#64748b;font-size:16px}
.backup-entries summary{display:inline-flex;align-items:center;gap:6px;cursor:pointer;list-style:none;padding:8px 12px;border-radius:999px;transition:color .18s ease,background .18s ease}
.backup-entries summary::-webkit-details-marker{display:none}
.backup-entries summary:after{content:"⌄";font-size:18px;line-height:1;transition:transform .18s ease}
.backup-entries[open] summary:after{transform:rotate(180deg)}
.backup-entries summary:hover{color:#2563eb;background:#eff6ff}
.backup-list{margin-top:14px;display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.backup-list a{min-height:44px;padding:10px 8px;border:1px solid #dbe7f8;border-radius:9px;display:flex;align-items:center;justify-content:center;color:#315f9e;background:#f8fbff;text-decoration:none;font-size:14px;font-weight:600;transition:border-color .18s ease,background .18s ease}
.backup-list a:hover{border-color:#93b8f5;background:#eef5ff}
@media(max-width:640px){
  .page{padding:0;display:block}
  .card{width:100%;min-height:100vh;padding:8vh 24px 48px}
  .halo{width:180px;height:180px;margin-bottom:13vh}
  .shield{width:102px;height:118px}
  .shield span{left:31px;top:44px;width:42px;height:21px;border-left-width:8px;border-bottom-width:8px}
  h1{font-size:31px}
  p{margin-top:8px;font-size:23px}
  .enter{height:64px;margin-top:13vh;border-radius:9px;font-size:25px}
  .backup-entries{margin-top:18px;font-size:14px}
  .backup-list{grid-template-columns:1fr;gap:8px}
  .backup-list a{min-height:42px;font-size:14px}
}