:root {
  --paper: #F5F6F3;
  --surface: #FFFFFF;
  --ink: #17202E;
  --ink-2: #4A5565;
  --ink-3: #8A93A0;
  --rule: #E1E4DF;
  --quiet: #2F7A57;
  --pending: #A86400;
  --alert: #C0392B;
  --link: #23527C;
  --press: rgba(23, 32, 46, 0.06);
  --radius: 14px;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0E141B;
    --surface: #151D26;
    --ink: #E7EBF0;
    --ink-2: #AAB4C0;
    --ink-3: #6F7B88;
    --rule: #24303C;
    --quiet: #4CB383;
    --pending: #E0A040;
    --alert: #E5655A;
    --link: #8BB8E8;
    --press: rgba(231, 235, 240, 0.07);
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.55 var(--font);
  -webkit-font-smoothing: antialiased;
  padding-bottom: calc(72px + env(safe-area-inset-bottom));
}
main {
  max-width: 640px;
  margin: 0 auto;
  padding: calc(20px + env(safe-area-inset-top)) 18px 32px;
}
a { color: var(--link); text-decoration: none; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--link); outline-offset: 2px; border-radius: 6px; }

/* ---------- 顶部结论：整个应用最重要的一句话 ---------- */
.verdict { margin: 8px 0 28px; }
.verdict h1 {
  margin: 0;
  font-size: 28px;
  line-height: 1.28;
  font-weight: 650;
  letter-spacing: -0.01em;
  display: flex;
  gap: 12px;
  align-items: baseline;
}
.lamp {
  flex: none;
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--quiet);
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--quiet) 18%, transparent);
  transform: translateY(-3px);
}
.lamp.pending { background: var(--pending); box-shadow: 0 0 0 5px color-mix(in srgb, var(--pending) 18%, transparent); }
.lamp.alert { background: var(--alert); box-shadow: 0 0 0 5px color-mix(in srgb, var(--alert) 20%, transparent); }
.verdict p { margin: 8px 0 0 23px; color: var(--ink-2); font-size: 14px; }
.verdict p .bad { color: var(--alert); }

/* ---------- 分区 ---------- */
section { margin: 0 0 30px; }
section > h2 {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-2);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
section > h2 small { font-weight: 400; color: var(--ink-3); font-size: 13px; }

.list { background: var(--surface); border-radius: var(--radius); overflow: hidden; }
.row {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 12px;
  padding: 13px 16px;
  border-top: 1px solid var(--rule);
  color: inherit;
}
.row:first-child { border-top: 0; }
a.row:active, button.row:active { background: var(--press); }
.row .when { font-size: 13px; color: var(--ink-2); font-variant-numeric: tabular-nums; line-height: 1.4; padding-top: 2px; }
.row .when.soon { color: var(--alert); font-weight: 600; }
.row .title { font-weight: 560; line-height: 1.4; }
.row .sub { font-size: 13px; color: var(--ink-3); margin-top: 2px; overflow-wrap: anywhere; }
.row.plain { grid-template-columns: 1fr; }
.row .flag { color: var(--alert); font-size: 13px; margin-top: 3px; }
.empty { color: var(--ink-3); font-size: 14px; padding: 4px 2px; }

.note { display: block; padding: 12px 16px; border-top: 1px solid var(--rule); }
.note:first-child { border-top: 0; }
.note .meta { font-size: 12px; color: var(--ink-3); }
.note .text { margin: 2px 0 8px; }
.note .actions { display: flex; gap: 8px; flex-wrap: wrap; }

details.fold > summary { cursor: pointer; color: var(--ink-3); font-size: 14px; list-style: none; padding: 6px 2px; }
details.fold > summary::-webkit-details-marker { display: none; }
details.fold[open] > summary { margin-bottom: 8px; }

/* ---------- 按钮 ---------- */
.btn {
  appearance: none;
  border: 1px solid var(--rule);
  background: var(--surface);
  border-radius: 10px;
  padding: 7px 12px;
  font-size: 14px;
  cursor: pointer;
  color: var(--ink);
}
.btn:active { background: var(--press); }
.btn.primary { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.btn.big { width: 100%; padding: 15px 16px; font-size: 18px; font-weight: 600; border-radius: 14px; }
.btn.quiet { border-color: transparent; background: transparent; color: var(--ink-2); }
.btn.danger { color: var(--alert); }
.btn[disabled] { opacity: .5; }
.btns { display: flex; gap: 8px; flex-wrap: wrap; margin: 14px 0; }

/* ---------- 详情页 ---------- */
.back { display: inline-block; margin: 0 0 14px; font-size: 15px; }
.detail h1 { font-size: 24px; line-height: 1.3; margin: 0 0 8px; font-weight: 650; }
.facts { margin: 0 0 16px; color: var(--ink-2); }
.facts div { padding: 2px 0; }
.facts b { color: var(--ink); font-weight: 600; }
.banner { border-radius: 12px; padding: 12px 14px; margin: 12px 0; background: color-mix(in srgb, var(--alert) 10%, var(--surface)); color: var(--ink); }
.banner.ok { background: color-mix(in srgb, var(--quiet) 12%, var(--surface)); }
blockquote {
  margin: 12px 0;
  padding: 12px 14px;
  background: var(--surface);
  border-radius: 12px;
  border-left: 3px solid var(--ink-3);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
blockquote .who { display: block; font-size: 13px; color: var(--ink-3); margin-bottom: 4px; }
.timeline { list-style: none; padding: 0; margin: 0; }
.timeline li { padding: 8px 0 8px 16px; border-left: 2px solid var(--rule); position: relative; font-size: 14px; }
.timeline li::before { content: ''; position: absolute; left: -5px; top: 15px; width: 8px; height: 8px; border-radius: 50%; background: var(--ink-3); }
.timeline .t { color: var(--ink-3); font-size: 12px; }

/* 聊天上下文 */
.chat { background: var(--surface); border-radius: var(--radius); padding: 6px 0; }
.msg { padding: 8px 16px; }
.msg .who { font-size: 12px; color: var(--ink-3); }
.msg .who .role { color: var(--pending); }
.msg .body { white-space: pre-wrap; overflow-wrap: anywhere; }
.msg.focus { background: color-mix(in srgb, var(--pending) 12%, transparent); }
.msg.mine .who { color: var(--quiet); }
.msg img { max-width: 100%; border-radius: 8px; margin-top: 6px; display: block; }

/* ---------- 表单 ---------- */
label.field { display: block; margin: 0 0 14px; }
label.field span { display: block; font-size: 13px; color: var(--ink-2); margin-bottom: 6px; }
input[type=text], input[type=password], input[type=search], input[type=datetime-local], textarea, select {
  width: 100%;
  font: inherit;
  font-size: 16px;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 10px;
  padding: 10px 12px;
}
textarea { min-height: 120px; resize: vertical; line-height: 1.5; }
.inline { display: flex; gap: 8px; }
.inline > input, .inline > select { flex: 1; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; font-size: 14px; }
.kv dt { color: var(--ink-3); }
.kv dd { margin: 0; overflow-wrap: anywhere; }
.code { font-size: 13px; background: var(--surface); border: 1px solid var(--rule); border-radius: 10px; padding: 10px 12px; overflow-wrap: anywhere; user-select: all; }
.hint { font-size: 13px; color: var(--ink-3); margin: 6px 0 0; }
.answer { white-space: pre-wrap; background: var(--surface); border-radius: var(--radius); padding: 14px 16px; margin: 12px 0; }

/* ---------- 登录 ---------- */
.login { max-width: 360px; margin: 18vh auto 0; }
.login h1 { font-size: 26px; margin: 0 0 6px; }
.login p { color: var(--ink-2); margin: 0 0 20px; }

/* ---------- 底部标签栏 ---------- */
.tabs {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  display: flex;
  justify-content: center;
  gap: 0;
  padding: 8px 12px calc(8px + env(safe-area-inset-bottom));
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(160%) blur(16px);
  -webkit-backdrop-filter: saturate(160%) blur(16px);
  border-top: 1px solid var(--rule);
}
.tabs a {
  flex: 1;
  max-width: 200px;
  text-align: center;
  padding: 8px 0;
  font-size: 14px;
  color: var(--ink-3);
  border-radius: 10px;
}
.tabs a.on { color: var(--ink); font-weight: 600; }

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(84px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  background: var(--ink);
  color: var(--paper);
  padding: 10px 16px;
  border-radius: 12px;
  font-size: 14px;
  max-width: calc(100vw - 32px);
  z-index: 10;
}

.spark { display: block; width: 100%; height: 36px; margin-top: 8px; }
.spark path { fill: none; stroke: var(--ink-3); stroke-width: 1.25; }

@media (prefers-reduced-motion: no-preference) {
  .toast { transition: opacity .2s; }
}