/* ============================================================
 * case.css · 案例数据详情页
 *   KPI 计数带 / 柱形图 / 横向条形 / 环形图 / 时间轴 / 交付清单
 * ============================================================ */

/* ---------- 面包屑 ---------- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
  font-size: 13px;
  color: rgba(255, 255, 255, .78);
  margin-bottom: 18px;
}
.breadcrumb a { color: #fff; opacity: .9; border-bottom: 1px dashed rgba(255, 255, 255, .5); }
.breadcrumb a:hover { opacity: 1; }
.breadcrumb em { font-style: normal; color: var(--c-yellow); }

.case-hero .case-tags { justify-content: center; margin-bottom: 14px; }
.case-hero .case-tags span { background: rgba(255, 255, 255, .18); color: #fff; }
.case-hero h1 { letter-spacing: -0.5px; }
.case-hero p { max-width: 780px; margin: 0 auto; }

/* ---------- KPI 计数带 ---------- */
.kpi-band {
  position: relative;
  z-index: 2;
  margin: -56px auto 0;
  max-width: 1180px;
  padding: 0 20px;
}
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 16px;
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: 18px;
  box-shadow: 0 18px 46px rgba(15, 30, 60, .1);
  padding: 26px 22px;
}
.kpi-item { text-align: center; padding: 6px 4px; position: relative; }
.kpi-item + .kpi-item::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 1px; height: 62%;
  background: var(--c-border);
}
.kpi-num {
  display: block;
  font-size: 34px;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -1px;
  background: linear-gradient(135deg, var(--c-accent), var(--c-accent-dark));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--c-accent-dark);
}
.kpi-num small { font-size: 15px; font-weight: 700; margin-left: 2px; letter-spacing: 0; }
.kpi-item > span {
  display: block;
  margin-top: 8px;
  font-size: 12.5px;
  color: var(--c-muted);
  line-height: 1.6;
}
.kpi-note {
  margin: 14px auto 0;
  max-width: 980px;
  text-align: center;
  font-size: 12px;
  color: var(--c-muted);
  line-height: 1.75;
}

/* ---------- 图表卡片 ---------- */
.chart-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
  gap: 22px;
}
.chart-grid.cols-1 { grid-template-columns: 1fr; }
.chart-card {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 24px 24px 20px;
  transition: box-shadow .22s, border-color .22s, transform .22s;
}
.chart-card:hover { box-shadow: var(--shadow-md); border-color: #cfdcf7; }
.chart-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 4px;
}
.chart-head h3 { font-size: 16px; font-weight: 800; }
.chart-total {
  font-size: 12px;
  font-weight: 700;
  color: var(--c-accent-dark);
  background: var(--c-accent-light);
  border-radius: 999px;
  padding: 4px 12px;
  white-space: nowrap;
}
.chart-sub { font-size: 12.5px; color: var(--c-muted); margin-bottom: 18px; line-height: 1.7; }
.chart { width: 100%; }
.chart-note {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px dashed var(--c-border);
  font-size: 11.5px;
  color: var(--c-muted);
  line-height: 1.8;
}

/* ---------- 竖向柱形图 ---------- */
.cc-column {
  display: flex;
  align-items: flex-end;
  gap: 14px;
  height: 232px;
  padding: 8px 4px 0;
}
.cc-col {
  flex: 1 1 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  height: 100%;
}
.cc-val {
  font-size: 15px;
  font-weight: 900;
  color: var(--c-text);
  margin-bottom: 6px;
  letter-spacing: -.3px;
}
.cc-val small { font-size: 11px; font-weight: 600; color: var(--c-muted); margin-left: 1px; }
.cc-bar {
  position: relative;
  width: 100%;
  max-width: 74px;
  flex: 1 1 auto;
  display: flex;
  align-items: flex-end;
  border-radius: 9px 9px 4px 4px;
  background: linear-gradient(180deg, #f2f6fe, #fafcff);
  overflow: hidden;
}
.cc-bar i {
  display: block;
  width: 100%;
  height: 0;
  border-radius: 9px 9px 4px 4px;
  background: linear-gradient(180deg, #6aa6ff, var(--c-accent) 55%, var(--c-accent-dark));
  transition: height 1s cubic-bezier(.2, .75, .25, 1);
  box-shadow: 0 6px 16px rgba(59, 130, 246, .26);
}
.cc-bar i.is-yellow { background: linear-gradient(180deg, #fdd679, var(--c-yellow) 60%, #f59e0b); box-shadow: 0 6px 16px rgba(251, 191, 36, .3); }
.cc-bar i.is-pink { background: linear-gradient(180deg, #f9a8d4, var(--c-female) 60%, #db2777); box-shadow: 0 6px 16px rgba(236, 72, 153, .26); }
.cc-bar i.is-teal { background: linear-gradient(180deg, #5eead4, #14b8a6 60%, #0d9488); box-shadow: 0 6px 16px rgba(20, 184, 166, .26); }
.cc-lab {
  margin-top: 10px;
  font-size: 12px;
  color: var(--c-muted);
  text-align: center;
  line-height: 1.45;
  min-height: 34px;
}

/* ---------- 横向条形 ---------- */
.cc-hbar { display: grid; gap: 16px; padding-top: 6px; }
.cc-row { display: grid; grid-template-columns: 116px 1fr 62px; align-items: center; gap: 12px; }
.cc-name { font-size: 12.5px; color: var(--c-text); line-height: 1.4; }
.cc-track {
  height: 14px;
  border-radius: 999px;
  background: #f1f5fc;
  overflow: hidden;
}
.cc-track i {
  display: block;
  width: 0;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--c-accent), #60a5fa);
  transition: width 1.05s cubic-bezier(.2, .75, .25, 1);
}
.cc-track i.is-yellow { background: linear-gradient(90deg, #f59e0b, var(--c-yellow)); }
.cc-track i.is-pink { background: linear-gradient(90deg, #db2777, #f9a8d4); }
.cc-track i.is-teal { background: linear-gradient(90deg, #0d9488, #5eead4); }
.cc-num {
  font-size: 13px;
  font-weight: 800;
  color: var(--c-accent-dark);
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.cc-num small { font-size: 11px; font-weight: 600; color: var(--c-muted); }

/* ---------- 环形图 ---------- */
.cc-donut { display: flex; align-items: center; gap: 26px; flex-wrap: wrap; padding: 6px 0; }
.cc-ring { position: relative; width: 168px; height: 168px; flex: 0 0 auto; }
.cc-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.cc-ring circle { fill: none; stroke-width: 20; stroke-linecap: butt; }
.cc-ring .cc-seg { transition: stroke-dasharray 1.1s cubic-bezier(.2, .75, .25, 1); }
.cc-center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}
.cc-center b { font-size: 27px; font-weight: 900; color: var(--c-text); line-height: 1; }
.cc-center span { font-size: 11.5px; color: var(--c-muted); margin-top: 5px; }
.cc-legend { list-style: none; flex: 1 1 190px; display: grid; gap: 9px; min-width: 180px; }
.cc-legend li { display: flex; align-items: center; gap: 9px; font-size: 12.5px; color: var(--c-text); }
.cc-legend i { width: 10px; height: 10px; border-radius: 3px; flex: 0 0 auto; }
.cc-legend b { margin-left: auto; font-variant-numeric: tabular-nums; color: var(--c-accent-dark); font-weight: 800; }

/* ---------- 时间轴 ---------- */
.tl { position: relative; padding-left: 26px; display: grid; gap: 22px; }
.tl::before {
  content: '';
  position: absolute;
  left: 7px; top: 6px; bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-accent), var(--c-yellow));
  opacity: .35;
  border-radius: 2px;
}
.tl-item { position: relative; }
.tl-item::before {
  content: '';
  position: absolute;
  left: -26px; top: 4px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--c-accent);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, .1);
}
.tl-date {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  color: var(--c-accent-dark);
  background: var(--c-accent-light);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 8px;
}
.tl-item h4 { font-size: 15px; font-weight: 800; margin-bottom: 6px; }
.tl-item p { font-size: 13px; color: var(--c-muted); line-height: 1.85; }

/* ---------- 交付清单表 ---------- */
.deliver-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  font-size: 13.5px;
}
.deliver-table th,
.deliver-table td {
  padding: 13px 16px;
  text-align: left;
  border-bottom: 1px solid var(--c-border);
  vertical-align: top;
  line-height: 1.7;
}
.deliver-table thead th {
  background: var(--c-bg-soft);
  font-size: 12.5px;
  font-weight: 800;
  color: var(--c-muted);
  letter-spacing: .4px;
  white-space: nowrap;
}
.deliver-table tbody tr:last-child td { border-bottom: 0; }
.deliver-table tbody tr:hover { background: #fbfcff; }
.deliver-table td:first-child { font-weight: 700; white-space: nowrap; }
.deliver-table .num { color: var(--c-accent-dark); font-weight: 800; white-space: nowrap; }

/* ---------- 效率指标带 ---------- */
.roi-band {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 18px;
  background: linear-gradient(135deg, #f4f8ff, #fffaf0);
  border: 1px solid #e3ecfb;
  border-radius: 18px;
  padding: 26px 24px;
}
.roi-item b {
  display: block;
  font-size: 26px;
  font-weight: 900;
  color: var(--c-accent-dark);
  letter-spacing: -.6px;
  line-height: 1.2;
}
.roi-item b small { font-size: 13px; font-weight: 700; margin-left: 3px; }
.roi-item span { display: block; margin-top: 7px; font-size: 12.5px; color: var(--c-muted); line-height: 1.7; }
.roi-foot {
  margin-top: 20px;
  font-size: 11.5px;
  color: var(--c-muted);
  line-height: 1.8;
  border-top: 1px dashed #dbe6f8;
  padding-top: 14px;
}

/* ---------- 上下页 ---------- */
.case-pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.pager-link {
  display: block;
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 20px 22px;
  box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.pager-link:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--c-accent); }
.pager-link span { display: block; font-size: 12px; color: var(--c-muted); margin-bottom: 7px; }
.pager-link b { font-size: 15px; font-weight: 800; color: var(--c-text); }
.pager-link.next { text-align: right; }
.pager-link:only-child { grid-column: 1 / -1; }

/* ---------- 入口高亮（case-card 可点） ---------- */
.case-card { cursor: pointer; }
.case-card .case-go {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-size: 13px;
  font-weight: 800;
  color: var(--c-accent-dark);
}
.case-card .case-go::after { content: '→'; transition: transform .2s; }
.case-card:hover .case-go::after { transform: translateX(4px); }
.case-card a { color: inherit; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .chart-grid { grid-template-columns: 1fr; }
  .chart-grid.cols-1 { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .kpi-band { margin-top: -40px; padding: 0 14px; }
  .kpi-grid { padding: 20px 14px; gap: 12px; grid-template-columns: repeat(2, 1fr); }
  .kpi-item + .kpi-item::before { display: none; }
  .kpi-num { font-size: 26px; }
  .kpi-item > span { font-size: 11.5px; }
  .cc-column { height: 196px; gap: 9px; }
  .cc-val { font-size: 13px; }
  .cc-lab { font-size: 11px; min-height: 40px; }
  .cc-row { grid-template-columns: 92px 1fr 54px; gap: 9px; }
  .cc-name { font-size: 11.5px; }
  .cc-donut { gap: 18px; }
  .cc-ring { width: 138px; height: 138px; }
  .cc-center b { font-size: 22px; }
  .chart-card { padding: 18px 16px 16px; }
  .chart-head h3 { font-size: 15px; }
  .deliver-table { font-size: 12.5px; }
  .deliver-table th, .deliver-table td { padding: 10px 11px; }
  .case-pager { grid-template-columns: 1fr; }
  .pager-link.next { text-align: left; }
  .roi-band { padding: 20px 16px; gap: 14px; }
  .roi-item b { font-size: 22px; }
}
@media (max-width: 380px) {
  .kpi-grid { grid-template-columns: 1fr; }
  .cc-lab { min-height: auto; }
}

/* ---------- 案例列表：详情入口 ---------- */
.cases-tip {
  text-align: center;
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.7;
  margin: -6px 0 26px;
}
.cases-tip::before {
  content: '';
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--c-accent);
  margin-right: 8px;
  vertical-align: middle;
}
.case-card { cursor: pointer; }
.case-card:focus-visible { outline: 2px solid var(--c-accent); outline-offset: 3px; }
.case-go {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--c-border);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--c-accent-dark);
  transition: gap .2s, color .2s;
}
.case-go::after {
  content: '→';
  transition: transform .2s;
}
.case-card:hover .case-go { gap: 10px; color: var(--c-accent); }
.case-card:hover .case-go::after { transform: translateX(3px); }