/* ============================================================
 * finance.css —— 金融学院样式
 *  复用 style.css 的 :root 设计变量，保持深色金融终端风格。
 * ============================================================ */

/* ---------- 顶部工具条 ---------- */
.fin-topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px 16px;
  margin-bottom: 16px;
}
.fin-viewtabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.fin-vtab {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-dim);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all .18s ease;
  white-space: nowrap;
}
.fin-vtab:hover { color: var(--text); border-color: var(--gold); }
.fin-vtab.active {
  background: linear-gradient(135deg, var(--gold), #d99a04);
  border-color: var(--gold);
  color: #10141a;
  box-shadow: 0 2px 12px rgba(240,185,11,.28);
}
.fin-searchbox {
  position: relative;
  flex: 1 1 220px;
  min-width: 180px;
  margin-left: auto;
}
.fin-searchbox input {
  width: 100%;
  box-sizing: border-box;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  padding: 9px 34px 9px 12px;
  font-size: 13px;
  outline: none;
  transition: border-color .18s ease;
}
.fin-searchbox input:focus { border-color: var(--blue); }
.fin-search-ic {
  position: absolute;
  right: 11px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 13px;
  opacity: .6;
  pointer-events: none;
}

/* ---------- 视图容器 ---------- */
.fin-view { display: none; }
.fin-view.active { display: block; }
.fin-note {
  color: var(--text-dim);
  font-size: 12.5px;
  line-height: 1.6;
  margin: 4px 2px 14px;
}
.fin-note b { color: var(--gold); }

/* ---------- 分类筛选 chips ---------- */
.fin-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}
.fin-chip {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-dim);
  border-radius: 999px;
  padding: 6px 13px;
  font-size: 12.5px;
  cursor: pointer;
  transition: all .16s ease;
  white-space: nowrap;
}
.fin-chip:hover { color: var(--text); border-color: var(--blue); }
.fin-chip.active {
  background: rgba(74,158,255,.16);
  border-color: var(--blue);
  color: var(--blue);
  font-weight: 600;
}

/* ---------- 词典分组 ---------- */
.fin-cat-block { margin-bottom: 22px; }
.fin-cat-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin: 4px 2px 12px;
}
.fin-cat-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 20px;
  padding: 0 6px;
  border-radius: 999px;
  background: var(--bg-elevated);
  color: var(--text-mute);
  font-size: 11px;
  font-weight: 600;
}
.fin-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}

/* ---------- 名词卡片 ---------- */
.fin-term {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  transition: border-color .18s ease, transform .18s ease;
}
.fin-term:hover { border-color: rgba(240,185,11,.45); transform: translateY(-1px); }
.fin-term-head h4 {
  margin: 0 0 8px;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: baseline;
  gap: 7px;
  flex-wrap: wrap;
}
.fin-en {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-mute);
  letter-spacing: .02em;
}
.fin-def {
  margin: 0 0 9px;
  font-size: 12.5px;
  line-height: 1.68;
  color: var(--text-dim);
}
.fin-formula-line {
  font-size: 12px;
  line-height: 1.6;
  color: var(--blue);
  background: rgba(74,158,255,.08);
  border-left: 3px solid var(--blue);
  border-radius: 6px;
  padding: 7px 10px;
  margin-bottom: 8px;
  word-break: break-word;
  font-family: "Consolas", "SFMono-Regular", Menlo, monospace;
}
.fin-formula-line b {
  display: inline-block;
  font-style: normal;
  font-weight: 700;
  color: var(--blue);
  margin-right: 8px;
  font-family: inherit;
  opacity: .85;
}
.fin-tip {
  margin: 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--gold);
  opacity: .92;
}

/* ---------- 计算器网格 ---------- */
.fin-calc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 14px;
}
.fin-calc {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.fin-calc-head {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.fin-calc-ic {
  font-size: 20px;
  line-height: 1.2;
  flex: 0 0 auto;
}
.fin-calc-head h4 {
  margin: 0 0 3px;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text);
}
.fin-calc-head p {
  margin: 0;
  font-size: 12px;
  color: var(--text-mute);
  line-height: 1.5;
}
.fin-fields {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 9px;
}
.fin-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.fin-fl {
  font-size: 11.5px;
  color: var(--text-dim);
  font-weight: 500;
}
.fin-fl em {
  font-style: normal;
  color: var(--text-mute);
  font-size: 10.5px;
}
.fin-field input {
  width: 100%;
  box-sizing: border-box;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 8px 10px;
  font-size: 13px;
  outline: none;
  font-variant-numeric: tabular-nums;
  transition: border-color .16s ease;
}
.fin-field input:focus { border-color: var(--gold); }
.fin-result {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  min-height: 42px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-variant-numeric: tabular-nums;
}
.fin-hint2 { color: var(--text-mute); font-size: 12px; }
.fin-err { color: var(--up); font-size: 12px; font-weight: 600; }
.fin-rrow {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 12.5px;
}
.fin-rl { color: var(--text-dim); flex: 1 1 auto; }
.fin-rv {
  color: var(--text);
  font-weight: 700;
  text-align: right;
  font-size: 13.5px;
}
.fin-rv.pos { color: var(--up); }
.fin-rv.neg { color: var(--down); }
.fin-rn { color: var(--text-mute); font-size: 11px; }
.fin-r-sec {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-mute);
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-top: 2px;
  padding-top: 4px;
  border-top: 1px dashed var(--border);
}

/* ---------- 公式速查 ---------- */
.fin-fgroup { padding: 16px 18px; margin-bottom: 14px; }
.fin-fgroup .fin-cat-title { margin-bottom: 12px; }
.fin-ftable { display: flex; flex-direction: column; gap: 2px; }
.fin-frow {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 6px 14px;
  padding: 10px 4px;
  border-bottom: 1px solid var(--border);
  align-items: start;
}
.fin-frow:last-child { border-bottom: none; }
.fin-fname {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.5;
}
.fin-fexpr {
  font-size: 13px;
  color: var(--blue);
  line-height: 1.55;
  font-family: "Consolas", "SFMono-Regular", Menlo, monospace;
  word-break: break-word;
}
.fin-fmeta {
  grid-column: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  font-size: 11.5px;
  color: var(--text-mute);
}
.fin-fvars { color: var(--text-dim); }
.fin-fuse { color: var(--gold); opacity: .9; }

/* ---------- 移动端适配 ---------- */
@media (max-width: 640px) {
  .fin-topbar { padding: 10px 12px; }
  .fin-searchbox { margin-left: 0; flex-basis: 100%; order: 3; }
  .fin-grid { grid-template-columns: 1fr; }
  .fin-calc-grid { grid-template-columns: 1fr; }
  .fin-frow { grid-template-columns: 1fr; }
  .fin-fmeta { grid-column: 1; }
  .fin-vtab { padding: 7px 12px; font-size: 12px; }
  .fin-calc { padding: 14px; }
}