:root {
  --bg: #0f1115;
  --card: #171a21;
  --line: #262b36;
  --fg: #e6e9ef;
  --dim: #9aa3b2;
  --accent: #4c8dff;
  --ok: #3ecf8e;
  --bad: #ff6b6b;
  --warn: #ffb84d;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  padding-bottom: 3rem;
}

.top { padding: 2rem 1.25rem 1rem; max-width: 860px; margin: 0 auto; }
.top h1 { margin: 0 0 .35rem; font-size: 1.6rem; }
.sub { margin: 0; color: var(--dim); font-size: .92rem; }

main { max-width: 860px; margin: 0 auto; padding: 0 1.25rem; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  margin: 1rem 0;
}
.card h2 {
  margin: 0 0 .8rem;
  font-size: 1.05rem;
  display: flex; align-items: center; gap: .6rem;
}
.card h3 { margin: 1.2rem 0 .6rem; font-size: .95rem; color: var(--dim); }

label { display: block; font-size: .85rem; color: var(--dim); margin-bottom: .35rem; }

input[type=text] {
  width: 100%;
  padding: .7rem .8rem;
  background: #0d1015;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--fg);
  font-size: 1rem;
  font-family: inherit;
}
input[type=text]:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }

.row { display: flex; flex-wrap: wrap; gap: .6rem; margin: .9rem 0 .4rem; }

button {
  padding: .6rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #1e2430;
  color: var(--fg);
  font-size: .92rem;
  font-family: inherit;
  cursor: pointer;
  transition: filter .15s, border-color .15s;
}
button:hover:not(:disabled) { filter: brightness(1.25); }
button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
button:disabled { opacity: .5; cursor: not-allowed; }
button.primary { background: var(--accent); border-color: var(--accent); color: #06101f; font-weight: 600; }
button.ghost { background: transparent; color: var(--dim); }
button.small { padding: .25rem .6rem; font-size: .78rem; margin-left: auto; }
button.danger { background: transparent; border-color: #4a2b2b; color: var(--bad); }

/* min(220px, 100%) 防止在 375px 视口下因 220px 下限而溢出 */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr)); gap: .5rem .9rem; }
.kv { display: flex; justify-content: space-between; gap: .6rem; padding: .35rem 0; border-bottom: 1px dashed var(--line); font-size: .88rem; min-width: 0; }
.kv span { color: var(--dim); flex: 0 0 auto; }
.kv code { min-width: 0; overflow-wrap: anywhere; text-align: right; }

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .84em;
  background: #0d1015;
  padding: .1rem .35rem;
  border-radius: 4px;
  color: #cbd5e5;
  word-break: break-all;
}

.hint { color: var(--dim); font-size: .82rem; margin: .5rem 0 0; }
.who { margin: 0 0 .8rem; }

.msg { margin-top: .8rem; font-size: .88rem; min-height: 1.2em; }
.msg.ok { color: var(--ok); }
.msg.bad { color: var(--bad); }
.msg.info { color: var(--dim); }

.warn {
  background: #2a2113;
  border: 1px solid #5c4a1f;
  color: var(--warn);
  padding: .7rem .85rem;
  border-radius: 8px;
  font-size: .86rem;
  margin: .6rem 0;
}

.cred-list { display: flex; flex-direction: column; gap: .6rem; }
.cred {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: .75rem .85rem;
  background: #12151b;
}
.cred-head { display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; }
.cred-name { font-weight: 600; overflow-wrap: anywhere; }
/* AAGUID 是长十六进制串，必须可断行 */
.cred-meta { color: var(--dim); font-size: .8rem; margin-top: .35rem; line-height: 1.7; overflow-wrap: anywhere; }
.cred-actions { margin-left: auto; display: flex; gap: .4rem; }

.tag {
  font-size: .72rem;
  padding: .12rem .45rem;
  border-radius: 20px;
  border: 1px solid var(--line);
  color: var(--dim);
}
.tag.sync { border-color: #2a4a6b; color: #79b8ff; }
.tag.bound { border-color: #2f5c43; color: var(--ok); }

.steps { margin: .5rem 0 0; padding-left: 1.3rem; }
.steps li { padding: .3rem 0; font-size: .87rem; }
.steps li.ok::marker { content: "✅ "; }
.steps li.bad::marker { content: "❌ "; }
.steps .detail {
  color: var(--dim);
  font-size: .78rem;
  display: block;
  margin-top: .15rem;
  /* 校验详情是长 JSON，无空格可断 —— 必须强制换行，
     否则其 min-content 宽度会撑破 grid/flex 容器 */
  word-break: break-all;
  overflow-wrap: anywhere;
}
.steps li { overflow-wrap: anywhere; }

.tips { margin: .5rem 0 0; padding-left: 1.2rem; color: var(--dim); font-size: .85rem; }
.tips li { margin: .4rem 0; }

details.card summary { cursor: pointer; }

.foot {
  max-width: 860px;
  margin: 1.5rem auto 0;
  padding: 0 1.25rem;
  color: var(--dim);
  font-size: .78rem;
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}

@media (max-width: 520px) {
  .row { flex-direction: column; }
  .row button { width: 100%; }
  .cred-actions { margin-left: 0; width: 100%; }
}