:root{
  --bg:#f6f7f9; --panel:#fff; --ink:#1a1d21; --ink2:#5b6470; --line:#e3e6ea;
  --accent:#2563eb; --accent-d:#1d4ed8; --ok:#0f7b45; --okbg:#e8f6ee;
  --warn:#8a5a00; --warnbg:#fff7e3; --err:#b42318; --errbg:#fdecea;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--ink); line-height:1.65;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Yu Gothic UI","Meiryo","Malgun Gothic","Noto Sans CJK JP","Noto Sans CJK KR",sans-serif;
  font-size:16px; -webkit-text-size-adjust:100%;
}
.site-header{
  background:var(--panel); border-bottom:1px solid var(--line);
  display:flex; align-items:center; justify-content:space-between;
  padding:12px 16px; position:sticky; top:0; z-index:10;
}
.brand{font-weight:700; font-size:18px; color:var(--ink); text-decoration:none}
.header-actions{display:flex;align-items:center;gap:14px;min-width:0}
.site-nav a{
  color:var(--ink2); text-decoration:none; margin-left:14px; font-size:15px;
  padding:6px 2px; border-bottom:2px solid transparent;
}
.site-nav a.active{color:var(--accent); border-bottom-color:var(--accent)}
.language-picker{
  position:relative;width:44px;height:34px;flex:none;border:1px solid var(--line);
  border-radius:9px;background:#fff;color:var(--ink2);overflow:hidden;
}
.language-picker:hover{background:#f0f2f5;color:var(--ink)}
.language-picker:focus-within{outline:2px solid var(--accent);outline-offset:2px;color:var(--accent)}
.language-picker-label{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  gap:1px;line-height:1;pointer-events:none;white-space:nowrap;
}
.language-han{font-size:15px;font-weight:650}
.language-slash{font-size:12px;opacity:.55;transform:translateY(-.5px)}
.language-latin{font-size:14px;font-weight:700}
.language-select{
  position:absolute;inset:0;width:100%;height:100%;margin:0;border:0;
  opacity:0;cursor:pointer;font-size:16px;
}
main{max-width:720px; margin:0 auto; padding:16px 16px 40px}
.site-footer{max-width:720px; margin:0 auto; padding:0 16px 32px; color:var(--ink2); font-size:13px}

.card{background:var(--panel); border:1px solid var(--line); border-radius:12px; padding:18px; margin-bottom:16px}
.card-title{margin:0 0 12px; font-size:19px}
h3{margin:18px 0 8px; font-size:16px}
p{margin:0 0 12px}
.muted{color:var(--ink2); font-size:14px}
.big{font-size:17px}

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:6px;
  min-height:46px; padding:0 20px; border-radius:10px; border:1px solid var(--line);
  background:var(--panel); color:var(--ink); font-size:16px; cursor:pointer;
  font-family:inherit; transition:background .15s,opacity .15s;
}
.btn:hover:not(:disabled){background:#f0f2f5}
.btn:disabled{opacity:.5; cursor:not-allowed}
.btn-primary{background:var(--accent); border-color:var(--accent); color:#fff}
.btn-primary:hover:not(:disabled){background:var(--accent-d)}
.btn-danger{background:var(--err); border-color:var(--err); color:#fff}
.btn-ghost{min-height:34px; padding:0 12px; font-size:14px}
.btn-block{display:flex; width:100%; margin-bottom:10px}
.btn-hero{min-height:64px; font-size:17px; flex-direction:column; gap:2px; line-height:1.3}
.btn-hero small{font-size:13px; opacity:.85; font-weight:400}

.warn{background:var(--warnbg); border:1px solid #f0d9a8; border-left:4px solid #e0a53f; color:var(--warn); border-radius:8px; padding:12px 14px; margin-bottom:14px; font-size:14px}
.err{background:var(--errbg); border:1px solid #f3c2bd; border-left:4px solid var(--err); color:var(--err); border-radius:8px; padding:12px 14px; margin-bottom:14px; font-size:14px}
.ok{background:var(--okbg); border:1px solid #b9e2cb; border-left:4px solid var(--ok); color:var(--ok); border-radius:8px; padding:12px 14px; margin-bottom:14px; font-size:14px}
.warn ul,.err ul,.ok ul{margin:8px 0 0; padding-left:20px}
.warn li{margin-bottom:6px}

.row{display:flex; gap:12px; flex-wrap:wrap}
.row>*{flex:1 1 0; min-width:0}
.stat{background:#fafbfc; border:1px solid var(--line); border-radius:10px; padding:14px 8px; text-align:center}
.stat-num{font-size:26px; font-weight:700; line-height:1.2}
.stat-label{font-size:13px; color:var(--ink2); margin-top:2px}

.mono{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  background:#f2f4f7; border:1px solid var(--line); border-radius:8px;
  padding:12px 14px; word-break:break-all; letter-spacing:.06em; font-size:15px; margin-bottom:10px;
}
.mono-lg{font-size:16px; line-height:2; letter-spacing:.08em}

.field{margin-bottom:14px}
.field label{display:block; font-size:14px; color:var(--ink2); margin-bottom:6px}
.input{
  width:100%; min-height:46px; padding:10px 12px; font-size:16px; font-family:inherit;
  border:1px solid var(--line); border-radius:10px; background:#fff; color:var(--ink);
}
.input:focus{outline:2px solid var(--accent); outline-offset:-1px; border-color:var(--accent)}
textarea.input{min-height:88px; resize:vertical; line-height:1.6}
.check{display:flex; align-items:flex-start; gap:10px; font-size:15px; cursor:pointer; margin:14px 0}
.check input{width:20px; height:20px; margin-top:2px; flex:none}

.steps{display:flex; gap:4px; margin:0 0 16px}
.step{flex:1; text-align:center; font-size:12px; color:var(--ink2); position:relative}
.step-dot{
  display:block; width:26px; height:26px; line-height:24px; margin:0 auto 4px;
  border-radius:50%; border:2px solid var(--line); background:#fff; font-size:13px;
}
.step-active .step-dot{border-color:var(--accent); background:var(--accent); color:#fff}
.step-active .step-label{color:var(--accent); font-weight:600}
.step-done .step-dot{border-color:var(--ok); background:var(--ok); color:#fff}

.spinner{
  display:inline-block; width:16px; height:16px; border:2px solid var(--line);
  border-top-color:var(--accent); border-radius:50%; animation:spin .8s linear infinite; flex:none;
}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-row{display:flex; align-items:center; gap:10px; color:var(--ink2); font-size:14px; padding:8px 0}

.toast{
  position:fixed; left:50%; bottom:24px; transform:translateX(-50%);
  background:#1f2937; color:#fff; padding:10px 18px; border-radius:22px;
  font-size:14px; z-index:100; max-width:90vw; text-align:center; box-shadow:0 4px 16px rgba(0,0,0,.18);
}
.toast-ok{background:var(--ok)} .toast-err{background:var(--err)} .toast-warn{background:#a86a00}
.hidden{display:none !important}
.turnstile-host{margin:16px 0;min-height:1px}
#loading{padding:24px; text-align:center; color:var(--ink2)}

table{width:100%; border-collapse:collapse; font-size:14px}
th,td{padding:8px 6px; border-bottom:1px solid var(--line); text-align:right}
th:first-child,td:first-child{text-align:left}
th{color:var(--ink2); font-weight:600}
.tbl-wrap{overflow-x:auto}
.badge{display:inline-block; padding:2px 10px; border-radius:12px; font-size:13px; background:#eef1f5; color:var(--ink2)}
.badge-ok{background:var(--okbg); color:var(--ok)}
.badge-warn{background:var(--warnbg); color:var(--warn)}
hr{border:none; border-top:1px solid var(--line); margin:18px 0}
a{color:var(--accent)}
@media(max-width:560px){
  .site-header{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px 12px}
  .header-actions{display:contents}
  .language-picker{grid-column:2;grid-row:1}
  .site-nav{grid-column:1 / -1;grid-row:2;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:4px}
  .site-nav a{min-width:0;margin:0;padding:6px 4px;font-size:13px;text-align:center;overflow-wrap:anywhere}
  .language-picker{width:42px;height:32px}
  main{padding:12px 12px 32px}
  .card{padding:15px}
  .stat-num{font-size:22px}
}