/* ========================================
   GEO 客户案例页样式 v1.0
   ======================================== */

.cases-page {
  padding: 120px 0 80px;
  min-height: 100vh;
}

.cases-hero {
  text-align: center;
  margin-bottom: 40px;
}
.cases-hero .section-tag {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--primary, #E85D3F);
  margin-bottom: 8px;
}
.cases-hero h1 {
  font-size: 32px;
  font-weight: 700;
  color: var(--dark, #2c2c2a);
  margin-bottom: 10px;
}
.cases-hero p {
  font-size: 14px;
  color: var(--dark-3, #888);
}

/* ---------- 工具栏 ---------- */
.cases-toolbar {
  background: var(--bg-card, #fff);
  border: 1px solid var(--border-color, rgba(0, 0, 0, .08));
  border-radius: 14px;
  padding: 18px 20px;
  margin-bottom: 24px;
}

.case-search input {
  width: 100%;
  padding: 11px 15px;
  font-size: 14px;
  font-family: inherit;
  color: var(--dark, #2c2c2a);
  background: var(--bg-secondary, #f7f7f8);
  border: 1px solid var(--border-color, rgba(0, 0, 0, .08));
  border-radius: 10px;
  transition: border-color .2s, background .2s;
}
.case-search input::placeholder { color: var(--dark-3, #888); }
.case-search input:focus {
  outline: none;
  border-color: var(--primary, #E85D3F);
  background: var(--bg-card, #fff);
}

.case-filters {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.filter-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 7px;
}
.filter-group-label {
  font-size: 12px;
  color: var(--dark-3, #888);
  min-width: 40px;
  flex: none;
}
.filter-chip {
  font-family: inherit;
  font-size: 12.5px;
  padding: 5px 13px;
  border-radius: 20px;
  border: 1px solid var(--border-color, rgba(0, 0, 0, .1));
  background: transparent;
  color: var(--dark-2, #5f5e5a);
  cursor: pointer;
  transition: background .2s, color .2s, border-color .2s;
}
.filter-chip[aria-pressed="true"] {
  background: var(--primary, #E85D3F);
  border-color: var(--primary, #E85D3F);
  color: #fff;
  font-weight: 500;
}

.case-result-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border-color, rgba(0, 0, 0, .06));
  flex-wrap: wrap;
}
.case-result-bar p {
  font-size: 13px;
  color: var(--dark-3, #888);
}
.case-result-bar select {
  font-family: inherit;
  font-size: 13px;
  padding: 6px 11px;
  border-radius: 8px;
  border: 1px solid var(--border-color, rgba(0, 0, 0, .1));
  background: var(--bg-card, #fff);
  color: var(--dark-2, #5f5e5a);
  cursor: pointer;
}

/* ---------- 卡片网格 ---------- */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.geo-case-card {
  background: var(--bg-card, #fff);
  border: 1px solid var(--border-color, rgba(0, 0, 0, .08));
  border-radius: 14px;
  overflow: hidden;
  transition: transform .2s cubic-bezier(.4, 0, .2, 1),
              box-shadow .2s;
}
.geo-case-card-link {
  display: block;
  padding: 20px;
  color: inherit;
  text-decoration: none;
}
.geo-case-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
}
.case-badge {
  font-size: 11.5px;
  color: var(--primary, #E85D3F);
  background: rgba(232, 93, 63, .12);
  padding: 3px 10px;
  border-radius: 20px;
}
.case-scale {
  font-size: 11.5px;
  color: var(--dark-3, #888);
}
.geo-case-card-title {
  font-size: 15px;
  font-weight: 500;
  color: var(--dark, #2c2c2a);
  line-height: 1.55;
  margin-bottom: 7px;
}
.geo-case-card-meta {
  font-size: 12px;
  color: var(--dark-3, #888);
  margin-bottom: 10px;
}
.geo-case-card-summary {
  font-size: 13px;
  color: var(--dark-2, #5f5e5a);
  line-height: 1.7;
  margin-bottom: 14px;
}
.geo-case-card-metrics {
  list-style: none;
  padding: 12px 0 0;
  margin: 0;
  border-top: 1px solid var(--border-color, rgba(0, 0, 0, .06));
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.geo-case-card-metrics li { display: flex; flex-direction: column; }
.geo-case-card-metrics strong {
  font-size: 15px;
  font-weight: 500;
  color: var(--primary, #E85D3F);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.geo-case-card-metrics span {
  font-size: 11px;
  color: var(--dark-3, #888);
  margin-top: 1px;
}

/* ---------- 空状态 ---------- */
.cases-empty {
  text-align: center;
  padding: 60px 20px;
}
.cases-empty p {
  font-size: 15px;
  color: var(--dark-2, #5f5e5a);
  margin-bottom: 16px;
}
.cases-empty button {
  font-family: inherit;
  font-size: 13px;
  padding: 9px 20px;
  border-radius: 8px;
  border: 1px solid var(--primary, #E85D3F);
  background: transparent;
  color: var(--primary, #E85D3F);
  cursor: pointer;
  transition: background .2s, color .2s;
}
.cases-empty button:hover {
  background: var(--primary, #E85D3F);
  color: #fff;
}

/* ---------- 分页 ---------- */
.cases-pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 32px;
  flex-wrap: wrap;
}
.cases-pager button {
  font-family: inherit;
  font-size: 13px;
  min-width: 36px;
  height: 36px;
  padding: 0 11px;
  border-radius: 8px;
  border: 1px solid var(--border-color, rgba(0, 0, 0, .1));
  background: var(--bg-card, #fff);
  color: var(--dark-2, #5f5e5a);
  cursor: pointer;
  transition: background .2s, border-color .2s, color .2s;
}
.cases-pager button:disabled { opacity: .4; cursor: not-allowed; }
.cases-pager button[aria-current="page"] {
  background: var(--primary, #E85D3F);
  border-color: var(--primary, #E85D3F);
  color: #fff;
  font-weight: 500;
}

/* ========================================
   详情页
   ======================================== */
.case-detail-page {
  padding: 120px 0 80px;
  min-height: 100vh;
}
.case-breadcrumb {
  font-size: 13px;
  color: var(--dark-3, #888);
  margin-bottom: 22px;
}
.case-breadcrumb a {
  color: var(--dark-3, #888);
  text-decoration: none;
}
.case-breadcrumb a:hover { color: var(--primary, #E85D3F); }

.case-detail-header {
  margin-bottom: 30px;
}
.case-detail-header h1 {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--dark, #2c2c2a);
  margin-bottom: 14px;
}
.case-detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 16px;
}
.case-detail-tags span {
  font-size: 12px;
  color: var(--dark-2, #5f5e5a);
  background: var(--bg-secondary, #f7f7f8);
  padding: 4px 11px;
  border-radius: 20px;
}
.case-detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 13px;
  color: var(--dark-3, #888);
}

.case-demo-notice {
  background: rgba(254, 235, 235, .9);
  border: 1px solid #F09595;
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 13px;
  color: #791F1F;
  margin-bottom: 26px;
  line-height: 1.7;
}

/* 指标条 */
.case-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 40px;
}
.case-metric {
  background: var(--bg-card, #fff);
  border: 1px solid var(--border-color, rgba(0, 0, 0, .08));
  border-radius: 12px;
  padding: 20px 16px;
}
.case-metric .cm-label {
  font-size: 12px;
  color: var(--dark-3, #888);
  margin-bottom: 6px;
}
.case-metric .cm-value {
  font-size: 24px;
  font-weight: 500;
  color: var(--dark, #2c2c2a);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.case-metric .cm-delta {
  font-size: 12.5px;
  color: #1D9E75;
  margin-top: 4px;
  font-weight: 500;
}
.case-metric .cm-note {
  font-size: 11.5px;
  color: var(--dark-3, #888);
  margin-top: 2px;
}

/* 内容区块 */
.case-block {
  margin-bottom: 38px;
}
.case-block h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--dark, #2c2c2a);
  margin-bottom: 16px;
  padding-left: 11px;
  border-left: 3px solid var(--primary, #E85D3F);
}
.case-block p {
  font-size: 14px;
  line-height: 1.9;
  color: var(--dark-2, #5f5e5a);
  margin-bottom: 10px;
}

/* 挑战列表 */
.case-challenges {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.case-challenges li {
  position: relative;
  padding: 12px 16px 12px 40px;
  background: var(--bg-secondary, #f7f7f8);
  border-radius: 9px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--dark-2, #5f5e5a);
}
.case-challenges li::before {
  content: "";
  position: absolute;
  left: 16px; top: 18px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #E24B4A;
}

/* 方案步骤 */
.case-solution { display: flex; flex-direction: column; gap: 14px; }
.case-step {
  display: flex;
  gap: 14px;
  padding: 18px 20px;
  background: var(--bg-card, #fff);
  border: 1px solid var(--border-color, rgba(0, 0, 0, .08));
  border-radius: 12px;
}
.case-step-no {
  flex: none;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--primary, #E85D3F);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
}
.case-step-body h3 {
  font-size: 15px;
  font-weight: 500;
  color: var(--dark, #2c2c2a);
  margin-bottom: 5px;
}
.case-step-body p {
  font-size: 13.5px;
  line-height: 1.75;
  margin: 0;
}

/* 成果表 */
.case-results-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  background: var(--bg-card, #fff);
  border: 1px solid var(--border-color, rgba(0, 0, 0, .08));
  border-radius: 12px;
  overflow: hidden;
}
.case-results-table th,
.case-results-table td {
  padding: 13px 16px;
  text-align: left;
  font-size: 13.5px;
  border-bottom: 1px solid var(--border-color, rgba(0, 0, 0, .06));
}
.case-results-table th {
  background: var(--bg-secondary, #f7f7f8);
  color: var(--dark-3, #888);
  font-weight: 500;
  font-size: 12.5px;
}
.case-results-table td { color: var(--dark-2, #5f5e5a); }
.case-results-table tr:last-child td { border-bottom: none; }
.case-results-table .tbl-v {
  color: var(--primary, #E85D3F);
  font-weight: 500;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* 客户评价 */
.case-quote {
  background: var(--bg-secondary, #f7f7f8);
  border-left: 3px solid var(--primary, #E85D3F);
  border-radius: 0 12px 12px 0;
  padding: 22px 24px;
}
.case-quote p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--dark, #2c2c2a);
  margin-bottom: 10px;
}
.case-quote cite {
  font-style: normal;
  font-size: 13px;
  color: var(--dark-3, #888);
}

.case-404 {
  text-align: center;
  padding: 80px 20px;
  font-size: 15px;
  color: var(--dark-2, #5f5e5a);
}

/* 相关案例 */
.case-related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}

/* CTA */
.case-cta {
  text-align: center;
  padding: 40px 20px;
  background: var(--bg-secondary, #f7f7f8);
  border-radius: 14px;
  margin-top: 40px;
}
.case-cta h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--dark, #2c2c2a);
  margin-bottom: 8px;
}
.case-cta p {
  font-size: 14px;
  color: var(--dark-3, #888);
  margin-bottom: 20px;
}
.case-cta-btns {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- 响应式 ---------- */
@media (max-width: 768px) {
  .cases-page, .case-detail-page { padding: 90px 0 60px; }
  .cases-hero h1 { font-size: 26px; }
  .cases-grid { grid-template-columns: 1fr; }
  .case-detail-header h1 { font-size: 21px; }
  .case-metrics { grid-template-columns: repeat(2, 1fr); }
  .filter-group-label { min-width: 100%; }
  .case-results-table th, .case-results-table td { padding: 10px 12px; font-size: 12.5px; }
  .case-step { padding: 15px 16px; }
}

@media (max-width: 375px) {
  .case-metrics { grid-template-columns: 1fr; }
  .geo-case-card-metrics strong { font-size: 14px; }
}

/* ---------- 无障碍：触屏不粘 hover ---------- */
@media (hover: none), (pointer: coarse) {
  .cases-empty button:hover {
    background: transparent;
    color: var(--primary, #E85D3F);
  }
  .cases-pager button:hover {
    background: var(--bg-card, #fff);
    color: var(--dark-2, #5f5e5a);
  }
  .case-breadcrumb a:hover { color: var(--dark-3, #888); }
  .geo-case-card:hover {
    transform: none;
    box-shadow: none;
  }
}

/* ---------- 打印 ---------- */
@media print {
  .cases-toolbar, .cases-pager, .case-cta { display: none; }
  .geo-case-card { break-inside: avoid; border: 1px solid #ddd; }
}

/* ========================================
   导航栏浅色底适配
   .nav-links a 原本是白字（rgba(255,255,255,.8)），
   为首页深色 hero 设计。案例页 / 详情页顶栏为白底，
   白字会看不见 —— 这里覆盖为深色字。
   ======================================== */
.cases-page ~ .footer,
.cases-page {
  /* 占位，保持文件结构清晰 */
}

.navbar .nav-links a {
  color: var(--dark-2) !important;
}
.navbar .nav-links a:hover,
.navbar .nav-links a.active {
  color: var(--primary) !important;
}
.navbar .nav-links .lang-switch a[style*="primary"],
.navbar .nav-links .lang-switch a[style*="dark-3"] {
  color: var(--dark-3) !important;
}
.navbar .nav-links .lang-switch a[style*="primary"] {
  color: var(--primary) !important;
  font-weight: 600;
}
.navbar .logo-text {
  color: var(--dark) !important;
}
.navbar.scrolled {
  background: var(--white) !important;
  box-shadow: 0 1px 12px rgba(0, 0, 0, .06) !important;
}
.navbar .mobile-menu-btn span {
  background: var(--dark) !important;
}

/* ========================================
   树动画移除后：导航栏与 hero 深色底衔接
   首页navbar 为透明（配深色 hero），
   但案例页只有 cases.css 生效，首页不受影响。
   案例页 navbar 已在上文覆盖为白底，这里补移动端吸顶阴影。
   ======================================== */
@media (max-width: 768px) {
  .navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
  }
  .navbar.scrolled {
    box-shadow: 0 2px 16px rgba(0, 0, 0, .08);
  }
}

}