:root{
  --bg:#f5f8fc;
  --card:#ffffff;
  --text:#172033;
  --muted:#6c7890;
  --primary:#1769e0;
  --primary-hover:#0e56bd;
  --border:#dce5f1;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  font-family:Arial,"Microsoft YaHei",sans-serif;
  color:var(--text);
  background:linear-gradient(180deg,#eef5ff 0%,var(--bg) 48%,#ffffff 100%);
}
main{
  min-height:100vh;
  display:grid;
  place-items:center;
  padding:28px 16px;
}
.download-box{
  width:min(520px,100%);
  background:var(--card);
  border:1px solid var(--border);
  border-radius:22px;
  padding:34px;
  box-shadow:0 20px 60px rgba(39,73,125,.12);
}
h1{
  margin:0 0 8px;
  text-align:center;
  font-size:2rem;
}
.subtitle{
  margin:0 0 28px;
  text-align:center;
  color:var(--muted);
}
.download-list{
  display:grid;
  gap:16px;
}
.download-button{
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:58px;
  padding:0 20px;
  border-radius:14px;
  color:#fff;
  background:linear-gradient(135deg,#1d76f2,var(--primary));
  text-decoration:none;
  font-size:1.08rem;
  font-weight:700;
  box-shadow:0 10px 24px rgba(23,105,224,.22);
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease;
}
.download-button:hover{
  transform:translateY(-2px);
  background:linear-gradient(135deg,var(--primary),var(--primary-hover));
  box-shadow:0 14px 30px rgba(23,105,224,.28);
}
.download-button:focus-visible{
  outline:3px solid rgba(23,105,224,.28);
  outline-offset:3px;
}
.notice{
  margin:24px 0 0;
  padding-top:18px;
  border-top:1px solid var(--border);
  color:var(--muted);
  font-size:.86rem;
  text-align:center;
  line-height:1.6;
}
@media(max-width:520px){
  .download-box{padding:26px 20px}
  h1{font-size:1.7rem}
  .download-button{min-height:54px}
}


.empty-message{
  text-align:center;
  color:var(--muted);
}
.admin-main{
  min-height:100vh;
  padding:32px 16px;
  background:linear-gradient(180deg,#eef5ff 0%,#f7f9fc 100%);
}
.admin-box{
  width:min(820px,100%);
  margin:0 auto;
  background:#fff;
  border:1px solid var(--border);
  border-radius:22px;
  padding:30px;
  box-shadow:0 20px 60px rgba(39,73,125,.12);
}
.admin-heading{
  display:flex;
  justify-content:space-between;
  gap:20px;
  align-items:flex-start;
  margin-bottom:24px;
}
.admin-heading h1{
  text-align:left;
  margin:0 0 8px;
}
.admin-heading p{
  margin:0;
  color:var(--muted);
}
.text-link{
  color:var(--primary);
  text-decoration:none;
  white-space:nowrap;
  font-weight:700;
}
.config-list{
  display:grid;
  gap:18px;
}
.config-card{
  border:1px solid var(--border);
  border-radius:16px;
  padding:20px;
  background:#fbfdff;
}
.config-card-title{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-bottom:16px;
}
.config-card-title h2{
  margin:0;
  font-size:1.1rem;
}
.enable-row{
  display:flex;
  align-items:center;
  gap:8px;
  color:var(--muted);
}
.admin-field{
  display:grid;
  gap:7px;
  margin-top:14px;
}
.admin-field span{
  font-weight:700;
  font-size:.92rem;
}
.admin-field input{
  width:100%;
  border:1px solid #cfdbea;
  border-radius:11px;
  padding:12px 13px;
  font-size:1rem;
  outline:none;
}
.admin-field input:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(23,105,224,.1);
}
.admin-actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:24px;
}
.action-button{
  border:1px solid #cbd8e8;
  border-radius:11px;
  padding:11px 16px;
  background:#fff;
  color:var(--text);
  cursor:pointer;
  font-weight:700;
}
.action-button.primary{
  background:var(--primary);
  border-color:var(--primary);
  color:#fff;
}
.action-button.danger{
  color:#b42318;
  border-color:#efc4bf;
}
.status-message{
  min-height:24px;
  margin-top:16px;
  color:#087443;
  font-weight:700;
}
.status-message[data-type="warning"]{
  color:#a15c00;
}
.admin-note{
  margin-top:18px;
  border-radius:12px;
  padding:14px 16px;
  background:#fff7df;
  color:#6f5316;
  line-height:1.65;
  font-size:.9rem;
}
@media(max-width:600px){
  .admin-box{padding:22px 16px}
  .admin-heading{display:block}
  .text-link{display:inline-block;margin-top:12px}
  .admin-actions{display:grid}
  .action-button{width:100%}
}