/* ============================================================
   资料速查库 · 样式表
   纯本地资源，不引用任何外部字体 / CDN。
   ============================================================ */

:root {
  --bg:        #f4f5f7;
  --surface:   #ffffff;
  --surface-2: #fafbfc;
  --border:    #e3e6ea;
  --border-2:  #eef0f3;
  --text:      #1f2329;
  --text-2:    #5a6472;
  --text-3:    #8b95a3;
  --primary:   #2b5cd9;
  --primary-2: #1f4bb8;
  --primary-bg:#eef3fe;
  --danger:    #c93a3a;
  --warn:      #b8730d;
  --warn-bg:   #fdf5e6;
  --mark-bg:   #fff2a8;
  --mark-text: #7a5200;
  --radius:    10px;
  --radius-sm: 7px;
  --shadow-1:  0 1px 2px rgba(16, 24, 40, .05), 0 1px 3px rgba(16, 24, 40, .06);
  --shadow-2:  0 8px 28px rgba(16, 24, 40, .12);
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;
}

* { box-sizing: border-box; }

/* 必须放在最前：多处容器使用 display:flex/grid，会覆盖 hidden 的默认行为 */
[hidden] { display: none !important; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  font-size: 14px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, h4, p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

/* ------------------------------ 顶栏 ------------------------------ */

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.topbar-row {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 12px 22px;
  max-width: 1320px;
  margin: 0 auto;
}

.brand { display: flex; align-items: center; gap: 10px; }

.brand-mark {
  display: grid;
  place-items: center;
  width: 32px; height: 32px;
  border-radius: 9px;
  background: linear-gradient(140deg, var(--primary), #4c7ef0);
  color: #fff;
  font-size: 16px;
  line-height: 1;
}

.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-text strong { font-size: 15.5px; letter-spacing: .2px; }
.brand-text em { font-style: normal; font-size: 11.5px; color: var(--text-3); }

.mode-tabs {
  display: flex;
  gap: 2px;
  padding: 3px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 9px;
  margin-left: 6px;
}

.mode-tab {
  border: 0;
  background: transparent;
  padding: 5px 16px;
  border-radius: 6px;
  color: var(--text-2);
  font-size: 13.5px;
  cursor: pointer;
  transition: background .15s, color .15s;
}
.mode-tab:hover { color: var(--text); }
.mode-tab.is-active {
  background: var(--surface);
  color: var(--primary);
  font-weight: 600;
  box-shadow: var(--shadow-1);
}

.topbar-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }

.stat-chip {
  font-size: 12px;
  color: var(--text-3);
  padding: 3px 9px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 20px;
  white-space: nowrap;
}

/* ------------------------------ 按钮 ------------------------------ */

.btn {
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 7px 15px;
  cursor: pointer;
  font-size: 13.5px;
  background: var(--surface);
  transition: background .15s, border-color .15s, color .15s;
  white-space: nowrap;
}
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-sm { padding: 4px 11px; font-size: 12.5px; }

.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--primary-2); border-color: var(--primary-2); }

.btn-ghost { border-color: var(--border); color: var(--text-2); }
.btn-ghost:hover:not(:disabled) { border-color: var(--primary); color: var(--primary); background: var(--primary-bg); }

.btn-danger { color: var(--danger); }
.btn-danger:hover:not(:disabled) { border-color: var(--danger); color: var(--danger); background: #fdf0f0; }

.btn-link {
  border: 0; background: transparent; color: var(--text-3);
  padding: 4px 0; font-size: 12.5px; text-decoration: underline dotted;
}
.btn-link:hover { color: var(--primary); }

/* --------------------- 头部：标题 + 检索框（居中） --------------------- */

.hero {
  max-width: 900px;
  margin: 0 auto;
  padding: 58px 22px 26px;
  text-align: center;
}

.hero-title {
  font-size: 34px;
  font-weight: 700;
  letter-spacing: .5px;
  line-height: 1.25;
}

.hero-sub {
  margin-top: 10px;
  font-size: 14px;
  color: var(--text-3);
}

.hero-search {
  position: relative;
  max-width: 620px;
  margin: 28px auto 0;
}

.hero-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin-top: 17px;
  font-size: 12.5px;
  color: var(--text-3);
}

.search-box {
  display: flex;
  align-items: center;
  gap: 11px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 12px;
  padding: 0 18px;
  box-shadow: var(--shadow-1);
  transition: border-color .15s, background .15s, box-shadow .15s;
}
.search-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(43, 92, 217, .1), var(--shadow-1);
}

.search-icon { color: var(--text-3); font-size: 19px; }

.search-box input {
  flex: 1;
  border: 0;
  outline: 0;
  background: transparent;
  padding: 15px 0;
  font-size: 16px;
}
.search-box input::-webkit-search-cancel-button { display: none; }

.search-clear {
  border: 0; background: transparent; cursor: pointer;
  color: var(--text-3); font-size: 18px; line-height: 1; padding: 2px 4px;
}
.search-clear:hover { color: var(--danger); }

.suggest {
  position: absolute;
  left: 0; right: 0; top: 100%;
  margin-top: 7px;
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-2);
  overflow: hidden;
  z-index: 25;
}
.suggest-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 15px; cursor: pointer; border-bottom: 1px solid var(--border-2);
}
.suggest-item:last-child { border-bottom: 0; }
.suggest-item:hover, .suggest-item.is-on { background: var(--primary-bg); }
.suggest-item b { font-weight: 600; }
.suggest-item b mark { background: var(--mark-bg); color: var(--mark-text); border-radius: 2px; }
.suggest-item span { margin-left: auto; font-size: 12px; color: var(--text-3); }

/* ------------------------------ 显示框 ------------------------------ */

.result-panel {
  max-width: 900px;
  margin: 0 auto 64px;
  padding: 18px 20px 20px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-1);
}

/* ------------------------------ 结果区 ------------------------------ */

.result-head {
  display: flex; align-items: center; gap: 14px;
  padding: 0 2px 12px;
}
.result-summary { font-size: 13px; color: var(--text-3); }
.result-summary b { color: var(--text); font-weight: 600; }
.result-tools { margin-left: auto; }
.sort-label { font-size: 12.5px; color: var(--text-3); display: flex; align-items: center; gap: 6px; }
.sort-label select {
  border: 1px solid var(--border); border-radius: 6px;
  background: var(--surface); padding: 4px 8px; font-size: 12.5px; cursor: pointer;
}

.result-list { display: flex; flex-direction: column; gap: 10px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 15px 17px;
  cursor: pointer;
  transition: border-color .15s, box-shadow .15s, transform .12s;
}
.card:hover { border-color: #c8d3ea; box-shadow: var(--shadow-1); transform: translateY(-1px); }
.card-top { display: flex; align-items: center; gap: 9px; margin-bottom: 5px; flex-wrap: wrap; }
.card-title { font-size: 15px; font-weight: 600; letter-spacing: .1px; }

.card-tags { margin-left: auto; display: flex; gap: 5px; flex-wrap: wrap; }
.pill {
  font-size: 11.5px; padding: 2px 8px; border-radius: 20px;
  background: var(--primary-bg); color: var(--primary); white-space: nowrap;
}
.pill-muted { background: var(--surface-2); color: var(--text-3); border: 1px solid var(--border); }
.pill-pin { background: #fff3e0; color: var(--warn); }

.card-excerpt {
  color: var(--text-2);
  font-size: 13.5px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-meta {
  margin-top: 9px; padding-top: 8px;
  border-top: 1px dashed var(--border-2);
  font-size: 12px; color: var(--text-3);
  display: flex; gap: 14px; flex-wrap: wrap;
}

mark {
  background: var(--mark-bg);
  color: var(--mark-text);
  border-radius: 2px;
  padding: 0 1px;
  font-weight: 600;
}

/* 空态 */
.empty {
  text-align: center;
  padding: 64px 20px;
  color: var(--text-3);
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}
.empty-icon { font-size: 34px; opacity: .5; margin-bottom: 10px; }
.empty h3 { font-size: 15px; color: var(--text-2); margin-bottom: 6px; }
.empty p { font-size: 13px; }

.skeleton { height: 84px; border-radius: var(--radius); background: linear-gradient(90deg,#fff 25%,#eef1f5 37%,#fff 63%); background-size: 400% 100%; animation: sk 1.2s ease infinite; }
@keyframes sk { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }

.pager {
  display: flex; align-items: center; justify-content: center; gap: 16px;
  padding: 22px 0 0; font-size: 13px; color: var(--text-3);
}

/* ---------------------------- AI 解答区 ---------------------------- */
/* 仅在服务端开启 AI 且本次搜索命中时出现；AI 关闭时该元素完全不存在 */

.ai-answer {
  background: linear-gradient(180deg, #f7f9fe 0%, var(--surface) 60%);
  border: 1px solid #dbe5fb;
  border-radius: var(--radius);
  padding: 14px 17px 15px;
  margin-bottom: 14px;
  animation: aiIn .22s cubic-bezier(.22,.61,.36,1);
}
@keyframes aiIn { from { opacity: 0; transform: translateY(-5px); } to { opacity: 1; transform: none; } }

/* 收起：只折叠正文，保留标题栏，否则用户将失去再次展开的入口 */
.ai-answer.is-collapsed { padding-bottom: 13px; }
.ai-answer.is-collapsed .ai-answer-head { margin-bottom: 0; }
.ai-answer.is-collapsed .ai-answer-body,
.ai-answer.is-collapsed .refs { display: none; }

.ai-answer-head {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 10px; flex-wrap: wrap;
}
.ai-answer-icon {
  width: 22px; height: 22px; border-radius: 6px; flex: none;
  display: grid; place-items: center; font-size: 12px; line-height: 1;
  background: linear-gradient(140deg, var(--primary), #4c7ef0);
  color: #fff;
}
.ai-answer-title { font-size: 13px; font-weight: 650; letter-spacing: .2px; }
.ai-answer-status { font-size: 12px; color: var(--text-3); }
.ai-answer-tools { margin-left: auto; display: flex; align-items: center; gap: 7px; }

.chan-pick {
  font-size: 12px; padding: 3px 7px; cursor: pointer;
  border: 1px solid var(--border); border-radius: 6px;
  background: var(--surface); color: var(--text-2);
}

.ai-answer-body {
  font-size: 14px; line-height: 1.78; word-break: break-word; color: #2b3038;
}
.ai-answer-body p { margin: 0 0 9px; }
.ai-answer-body p:last-child { margin-bottom: 0; }
.ai-answer-body ul { margin: 0 0 9px; padding-left: 20px; list-style: disc; }
.ai-answer-body li { margin-bottom: 3px; }
.ai-answer-body h4 { font-size: 14px; font-weight: 650; margin: 12px 0 6px; }
.ai-answer-body h4:first-child { margin-top: 0; }
.ai-answer-body code {
  font-family: var(--mono); font-size: 12.5px;
  background: var(--surface-2); border: 1px solid var(--border-2);
  border-radius: 4px; padding: 1px 5px;
}
.ai-answer-body pre {
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 11px 13px; overflow-x: auto;
  font-family: var(--mono); font-size: 12.5px; margin: 0 0 9px;
}
.ai-answer-body pre code { background: transparent; border: 0; padding: 0; }

/* 回答中标注的引用编号，与下方引用卡片呼应 */
.ref-mark {
  color: var(--primary);
  background: var(--primary-bg);
  border-radius: 4px;
  padding: 0 3px;
  font-size: 12.5px;
  font-weight: 600;
  white-space: nowrap;
}

.typing::after {
  content: '▍';
  color: var(--primary);
  animation: blink .9s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.refs {
  margin-top: 12px;
  border-top: 1px dashed var(--border);
  padding-top: 10px;
}
.refs-title { font-size: 12px; color: var(--text-3); margin-bottom: 7px; }
.refs-list { display: flex; flex-wrap: wrap; gap: 7px; }
.ref-card {
  display: flex; align-items: center; gap: 7px;
  font-size: 12.5px; padding: 5px 11px;
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); cursor: pointer; max-width: 100%;
}
.ref-card:hover { border-color: var(--primary); background: var(--primary-bg); color: var(--primary); }
.ref-card b { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 260px; }

.msg-error {
  background: #fdf1f1; border: 1px solid #f3d6d6;
  border-radius: var(--radius-sm); padding: 11px 13px; color: #9c2b2b; font-size: 13px;
}
.msg-error .hint { display: block; margin-top: 6px; color: #b05a5a; font-size: 12.5px; }

.chat-composer {
  display: flex; align-items: flex-end; gap: 10px;
  padding: 13px 18px; border-top: 1px solid var(--border);
  background: var(--surface-2);
}
.chat-composer textarea {
  flex: 1; resize: none; border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); padding: 9px 12px;
  background: var(--surface); outline: 0;
  max-height: 168px; line-height: 1.6; font-size: 14px;
}
.chat-composer textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(43,92,217,.1); }

.chat-meta-line { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; font-size: 12px; color: var(--text-3); flex-wrap: wrap; }
.chan-badge {
  font-size: 11.5px; padding: 2px 9px; border-radius: 20px;
  border: 1px solid var(--border); background: var(--surface-2);
}
.chan-local { color: #1f7a4d; background: #eef9f2; border-color: #cdead9; }
.chan-cloud { color: var(--warn); background: var(--warn-bg); border-color: #f0e0c0; }
.chan-off   { color: var(--text-3); }

/* ------------------------------ 抽屉 ------------------------------ */

.drawer-mask {
  position: fixed; inset: 0; background: rgba(16,24,40,.32);
  z-index: 40; animation: fade .16s ease;
}
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }

.drawer {
  position: fixed; top: 0; right: 0; bottom: 0;
  width: min(620px, 94vw);
  background: var(--surface);
  border-left: 1px solid var(--border);
  box-shadow: var(--shadow-2);
  z-index: 41;
  display: flex; flex-direction: column;
  animation: slideIn .2s cubic-bezier(.22,.61,.36,1);
}
@keyframes slideIn { from { transform: translateX(24px); opacity: .4; } to { transform: none; opacity: 1; } }

.drawer-head {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 18px; border-bottom: 1px solid var(--border); flex: none;
}
.drawer-actions { margin-left: auto; display: flex; gap: 7px; }
.drawer-badge {
  font-size: 12px; padding: 3px 10px; border-radius: 20px;
  background: var(--primary-bg); color: var(--primary);
}
.drawer-body { flex: 1; overflow-y: auto; padding: 20px 22px; }
.drawer-title { font-size: 19px; font-weight: 650; line-height: 1.4; margin-bottom: 12px; }
.drawer-body .content {
  white-space: pre-wrap; word-break: break-word;
  font-size: 14.5px; line-height: 1.85; color: #2b3038;
}
.drawer-foot {
  flex: none; padding: 11px 18px; border-top: 1px solid var(--border);
  font-size: 12px; color: var(--text-3);
  display: flex; gap: 16px; flex-wrap: wrap; background: var(--surface-2);
}

/* ------------------------------ 模态框 ------------------------------ */

.modal-mask {
  position: fixed; inset: 0; z-index: 50;
  background: rgba(16,24,40,.36);
  display: grid; place-items: center; padding: 24px;
  animation: fade .16s ease;
}
.modal {
  width: min(720px, 100%);
  max-height: 90vh;
  background: var(--surface);
  border-radius: 13px;
  box-shadow: var(--shadow-2);
  display: flex; flex-direction: column;
  overflow: hidden;
  animation: pop .18s cubic-bezier(.22,.61,.36,1);
}
@keyframes pop { from { transform: scale(.97) translateY(6px); opacity: 0; } to { transform: none; opacity: 1; } }
.modal-narrow { width: min(540px, 100%); }

.modal-head {
  display: flex; align-items: center;
  padding: 15px 20px; border-bottom: 1px solid var(--border);
}
.modal-head h2 { font-size: 15.5px; }
.modal-head .btn { margin-left: auto; }
.modal-body { padding: 18px 20px; overflow-y: auto; }
.modal-foot {
  display: flex; align-items: center; gap: 10px;
  padding: 13px 20px; border-top: 1px solid var(--border); background: var(--surface-2);
}
.modal-foot .btn-primary, .modal-foot .btn-ghost:last-child { margin-left: auto; }
.modal-foot .btn + .btn { margin-left: 0; }
.modal-hint { font-size: 12.5px; color: var(--text-3); }

.field { display: block; margin-bottom: 14px; }
.field > span {
  display: block; font-size: 12.5px; color: var(--text-2);
  margin-bottom: 5px; font-weight: 500;
}
.field .req { font-style: normal; color: var(--danger); font-size: 11.5px; }
.field i { font-style: normal; color: var(--text-3); font-size: 11.5px; font-weight: 400; }
.field input, .field textarea {
  width: 100%; border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); padding: 8px 11px;
  outline: 0; background: var(--surface); font-size: 13.5px;
}
.field textarea { resize: vertical; line-height: 1.7; font-family: inherit; }
.field input:focus, .field textarea:focus {
  border-color: var(--primary); box-shadow: 0 0 0 3px rgba(43,92,217,.1);
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.warn-text { font-size: 13.5px; color: var(--text-2); margin-bottom: 10px; }
.warn-endpoint {
  font-family: var(--mono); font-size: 12.5px;
  background: var(--warn-bg); border: 1px solid #f0e0c0;
  border-radius: var(--radius-sm); padding: 8px 11px;
  color: #8a5a0a; margin-bottom: 10px; word-break: break-all;
}
.check-line { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-2); }

/* ------------------------------ 统计面板 ------------------------------ */

.kv { display: grid; grid-template-columns: 108px 1fr; gap: 9px 14px; font-size: 13.5px; }
.kv dt { color: var(--text-3); font-size: 12.5px; }
.kv dd { margin: 0; font-family: var(--mono); font-size: 12.5px; word-break: break-all; }
.ok { color: #1f7a4d; }
.bad { color: var(--danger); }

/* ------------------------------ Toast ------------------------------ */

.toast-wrap {
  position: fixed; left: 50%; bottom: 34px; transform: translateX(-50%);
  z-index: 90; display: flex; flex-direction: column; gap: 8px; align-items: center;
  pointer-events: none;
}
.toast {
  background: #22262d; color: #fff;
  padding: 9px 18px; border-radius: 22px; font-size: 13px;
  box-shadow: var(--shadow-2);
  animation: toastIn .2s ease;
  max-width: 88vw;
}
.toast.is-error { background: #9c2b2b; }
.toast.is-ok { background: #1f7a4d; }
@keyframes toastIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* ------------------------------ 响应式 ------------------------------ */

@media (max-width: 980px) {
  .brand-text em { display: none; }
}

@media (max-width: 620px) {
  .topbar-row { padding: 10px 14px; gap: 10px; flex-wrap: wrap; }
  .hero { padding: 34px 14px 20px; }
  .hero-title { font-size: 26px; }
  .hero-sub { margin-top: 7px; font-size: 13px; }
  .hero-search { margin-top: 20px; }
  .hero-meta { gap: 13px; }
  .search-box { padding: 0 14px; border-radius: var(--radius); }
  .search-box input { padding: 13px 0; font-size: 15px; }
  .result-panel { margin: 0 12px 46px; padding: 14px 13px 16px; border-radius: var(--radius); }
  .field-row { grid-template-columns: 1fr; }
  .drawer { width: 100vw; }
  .modal-mask { padding: 10px; align-items: flex-end; }
  .modal { max-height: 94vh; }
}

/* ---------------------------------------------------------------------------
 * 极简模式（默认开启）：前台只保留「输入框 + 结果输出」
 * ---------------------------------------------------------------------------
 * 隐藏的东西，以及为什么：
 *   副标题、库内条目总数  —— 与检索无关的说明性信息，也会对外暴露库规模；
 *   结果摘要 + 排序下拉    —— 结果的附加信息与控制项，不是结果本身；
 *   AI 解答区             —— 即使服务端 ai.enabled=true 也不在前台出现；
 *   抽屉里的编辑 / 删除    —— 增删改属后台职责，前台不提供数据写入入口。
 *
 * 实现方式：默认即隐藏（HTML 里不加任何 class 就是极简态），
 * 只有把 config.json 的 site.minimal 设为 false 时，前端才给 body 加上
 * is-full 恢复完整界面。这样选「默认隐藏」而不是「默认显示 + JS 再隐藏」，
 * 是为了避免首屏闪出这些信息；而且即使脚本加载失败，页面也停在干净的极简态。
 *
 * 注意：AI 不只是「看不见」—— app.js 在极简模式下会直接把 aiEnabled 视为
 * false，因此不会发出任何 /api/ai/* 请求。
 * --------------------------------------------------------------------------- */
body:not(.is-full) .hero-sub,
body:not(.is-full) .hero-meta,
body:not(.is-full) .result-head,
body:not(.is-full) #aiAnswer,
body:not(.is-full) #btnEdit,
body:not(.is-full) #btnDelete {
  display: none !important;
}

/* 极简模式下检索框上移：少了副标题与条目数，原间距会显得空 */
body:not(.is-full) .hero-search { margin-top: 26px; }