:root {
  --bg: #f5f6f8;
  --bg-soft: #eceef2;
  --card: #ffffff;
  --text: #1c1f23;
  --text-soft: #5f6672;
  --text-faint: #8b93a1;
  --line: #e2e5ea;
  --brand: #ff6a00;
  --brand-dark: #e35c00;
  --brand-soft: #fff3e9;
  --warn: #c2410c;
  --warn-soft: #fff5ec;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 1px 2px rgba(18, 22, 30, .05), 0 8px 24px -12px rgba(18, 22, 30, .16);
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --bg-soft: #1b1e23;
    --card: #1d2026;
    --text: #eef0f3;
    --text-soft: #a9b1bd;
    --text-faint: #7d8694;
    --line: #2c313a;
    --brand-soft: #2a1d12;
    --warn: #ffab73;
    --warn-soft: #2c1c12;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 12px 28px -18px rgba(0, 0, 0, .7);
  }
}

* { box-sizing: border-box; }

/* 设置了 display 的元素也要让 [hidden] 生效 */
[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
}

.wrap { width: min(760px, 100% - 32px); margin-inline: auto; }

a { color: var(--brand-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--card); padding: 10px 14px; border-radius: var(--radius-sm); z-index: 20;
}
.skip:focus { left: 12px; top: 12px; }

/* ---------- 顶栏 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: var(--bg);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; min-height: 56px; }
.brand {
  display: inline-flex; align-items: center; gap: 9px;
  color: var(--text); font-weight: 700; letter-spacing: .2px;
}
.brand svg { color: var(--brand); flex: none; }
.brand:hover { text-decoration: none; color: var(--brand-dark); }

/* ---------- 查询区 ---------- */
.hero { padding: 48px 0 26px; text-align: center; }
h1 {
  margin: 0 0 10px;
  font-size: clamp(24px, 4.4vw, 36px);
  line-height: 1.3;
  letter-spacing: -.5px;
}
h1 .hl { color: var(--brand); }
.sub { margin: 0 0 26px; color: var(--text-soft); font-size: 15px; }

.query { display: flex; gap: 10px; align-items: stretch; }
.input-wrap { position: relative; flex: 1 1 auto; min-width: 0; }
#query-input {
  width: 100%; height: 54px; padding: 0 42px 0 16px;
  font-size: 17px; font-family: var(--mono);
  color: var(--text); background: var(--card);
  border: 1.5px solid var(--line); border-radius: var(--radius);
  outline: none; transition: border-color .15s, box-shadow .15s;
}
#query-input::placeholder { font-family: inherit; color: var(--text-faint); }
#query-input:focus { border-color: var(--brand); box-shadow: 0 0 0 4px var(--brand-soft); }

.clear {
  position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
  width: 30px; height: 30px; border: 0; border-radius: 50%;
  background: var(--bg-soft); color: var(--text-soft);
  font-size: 18px; line-height: 1; cursor: pointer;
}
.clear:hover { background: var(--line); }

/* 注册 / 续费 单选 */
.seg {
  display: flex; flex: none; padding: 3px; gap: 2px;
  background: var(--bg-soft); border: 1.5px solid var(--line); border-radius: var(--radius);
}
.seg label { position: relative; display: flex; }
.seg input { position: absolute; opacity: 0; width: 0; height: 0; }
.seg span {
  display: flex; align-items: center; padding: 0 18px; height: 100%;
  border-radius: 11px; font-size: 15px; font-weight: 600; color: var(--text-soft);
  cursor: pointer; white-space: nowrap; transition: background .15s, color .15s;
}
.seg input:checked + span { background: var(--card); color: var(--brand-dark); box-shadow: 0 1px 3px rgba(18, 22, 30, .12); }
.seg input:focus-visible + span { outline: 2px solid var(--brand); outline-offset: 1px; }
.seg label:hover span { color: var(--brand-dark); }

.btn {
  border: 1.5px solid transparent; border-radius: var(--radius);
  padding: 0 26px; height: 54px; font-size: 16px; font-weight: 600;
  cursor: pointer; white-space: nowrap; transition: background .15s, transform .05s;
  font-family: inherit;
}
.btn.primary { background: var(--brand); color: #fff; }
.btn.primary:hover { background: var(--brand-dark); text-decoration: none; }
.btn:active { transform: translateY(1px); }

.examples {
  display: flex; flex-wrap: wrap; gap: 8px; justify-content: center;
  margin: 16px 0 0; color: var(--text-faint); font-size: 14px;
}
.examples button {
  border: 1px solid var(--line); background: var(--card); color: var(--text-soft);
  border-radius: 999px; padding: 4px 12px; font-size: 13.5px; font-family: var(--mono);
  cursor: pointer;
}
.examples button:hover { border-color: var(--brand); color: var(--brand-dark); }

.error {
  margin: 16px 0 0; padding: 10px 14px;
  background: var(--warn-soft); color: var(--warn);
  border-radius: var(--radius-sm); font-size: 14.5px; text-align: left;
}

.history {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px; justify-content: center;
  margin: 18px 0 0; font-size: 13.5px;
}
.history-label { color: var(--text-faint); }
.history-list { display: flex; flex-wrap: wrap; gap: 8px; }
.history-list button {
  border: 1px dashed var(--line); background: transparent; color: var(--text-soft);
  border-radius: 999px; padding: 3px 11px; font-size: 13px; font-family: var(--mono); cursor: pointer;
}
.history-list button:hover { border-color: var(--brand); color: var(--brand-dark); }

/* ---------- 结果卡片 ---------- */
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px 24px; box-shadow: var(--shadow);
  margin-bottom: 22px;
}
#result { scroll-margin-top: 70px; }
.result-card { border-top: 3px solid var(--brand); }
.result-head {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: 22px; align-items: center;
}
.suffix-block {
  display: flex; flex-direction: column; gap: 4px;
  padding: 16px 18px; background: var(--brand-soft); border-radius: var(--radius);
}
.field-label { font-size: 13px; color: var(--text-soft); }
.suffix {
  font-family: var(--mono); font-size: clamp(30px, 6vw, 44px); line-height: 1.15;
  color: var(--brand-dark); word-break: break-all;
}
.domain-block { margin: 0; display: grid; gap: 8px; min-width: 0; }
.domain-block > div { display: flex; gap: 10px; align-items: baseline; min-width: 0; }
.domain-block dt { flex: none; width: 74px; color: var(--text-faint); font-size: 13.5px; }
.domain-block dd { margin: 0; min-width: 0; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.domain-block b { font-family: var(--mono); font-weight: 600; font-size: 15.5px; word-break: break-all; }
.mini {
  border: 1px solid var(--line); background: var(--card); color: var(--text-soft);
  border-radius: 6px; padding: 1px 8px; font-size: 12px; cursor: pointer; flex: none;
  font-family: inherit;
}
.mini:hover { border-color: var(--brand); color: var(--brand-dark); }

/* ---------- 优惠信息 ---------- */
.promo-block {
  margin-top: 18px; padding-top: 16px;
  border-top: 1px dashed var(--line);
}
.promo-title {
  margin: 0 0 10px; font-size: 14px; color: var(--text-soft);
}
.promo-title span { color: var(--brand-dark); font-weight: 700; }
.entries { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.entries li {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 10px 14px; border-radius: var(--radius-sm);
  background: var(--bg-soft); font-size: 15.5px;
}
.entries li::before {
  content: ''; flex: none; width: 6px; height: 6px; border-radius: 50%; background: var(--brand);
}
.entry-text { flex: 1 1 auto; min-width: 0; word-break: break-word; }
.tag {
  flex: none; padding: 1px 9px; border-radius: 999px;
  background: var(--card); border: 1px solid var(--line);
  color: var(--text-faint); font-size: 12px;
}
.tip { margin: 12px 0 0; color: var(--text-soft); font-size: 14px; }

.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.actions a, .actions button {
  border: 1px solid var(--line); background: var(--card); color: var(--text);
  border-radius: var(--radius-sm); padding: 9px 15px; font-size: 14.5px;
  cursor: pointer; display: inline-flex; align-items: center; gap: 6px;
  font-family: inherit;
}
.actions a:hover, .actions button:hover { border-color: var(--brand); color: var(--brand-dark); text-decoration: none; }
.actions .solid { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 600; }
.actions .solid:hover { background: var(--brand-dark); border-color: var(--brand-dark); color: #fff; }

/* ---------- 页脚 / 提示 ---------- */
.site-footer {
  border-top: 1px solid var(--line); background: var(--bg-soft);
  padding: 18px 0 24px; margin-top: 24px;
  color: var(--text-faint); font-size: 13.5px; text-align: center;
}
.site-footer p { margin: 0 0 4px; }
.site-footer p:last-child { margin-bottom: 0; }
.footer-links a { color: var(--text-soft); }
.footer-links a:hover { color: var(--brand-dark); }

.toast {
  position: fixed; left: 50%; bottom: 32px; transform: translateX(-50%);
  background: rgba(20, 22, 26, .92); color: #fff;
  padding: 9px 18px; border-radius: 999px; font-size: 14px; z-index: 30;
}

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
  .wrap { width: min(760px, 100% - 24px); }
  .hero { padding: 30px 0 18px; }
  .query { flex-direction: column; }
  .btn { height: 48px; }
  #query-input { height: 50px; font-size: 16px; }
  .seg { height: 46px; }
  .seg label { flex: 1 1 0; }
  .seg span { flex: 1 1 0; justify-content: center; }
  .card { padding: 18px 16px; }
  .result-head { grid-template-columns: 1fr; }
  .entries li { font-size: 15px; }
}

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