/* pages.css - 二级页面通用样式 */

/* ============ 页头 ============ */
.page-head {
  padding: 160px 0 80px;
  position: relative;
  overflow: hidden;
  background: radial-gradient(ellipse at top right, rgba(30, 98, 208, 0.12) 0%, transparent 60%),
              var(--ink-900);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--chrome-500);
  margin-bottom: 32px;
  letter-spacing: 0.05em;
}
.breadcrumb a { color: var(--chrome-400); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--arcss-blue-bright); }
.breadcrumb span:not(:last-child) { color: var(--ink-400); }

/* ============ 案例列表工具栏 ============ */
.cases-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--ink-600);
}

.search-box {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--ink-800);
  border: 1px solid var(--ink-500);
  padding: 8px 14px;
  min-width: 280px;
  color: var(--chrome-400);
}
.search-box input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--chrome-100);
  font-size: 13px;
  font-family: inherit;
  outline: none;
}
.search-box input::placeholder { color: var(--chrome-500); }

/* ============ 案例详情 ============ */
.case-detail {
  padding: 140px 0 80px;
  background: var(--ink-900);
}

.case-loading {
  text-align: center;
  padding: 100px 0;
  color: var(--chrome-400);
  font-family: var(--font-mono);
}

.case-header {
  max-width: 900px;
  margin-bottom: 60px;
}

.case-header-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.case-category-tag {
  background: var(--arcss-blue);
  color: #ffffff;
  padding: 5px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.case-mono-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--chrome-500);
  letter-spacing: 0.05em;
}

.case-header-summary {
  font-size: 20px;
  color: var(--chrome-300);
  margin-top: 28px;
  line-height: 1.6;
  max-width: 820px;
}

.case-infogrid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--ink-600);
  border: 1px solid var(--ink-600);
  margin-bottom: 60px;
}

.infobox {
  background: var(--ink-800);
  padding: 24px 22px;
}

.infobox-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--chrome-500);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.infobox-val {
  color: var(--chrome-100);
  font-size: 15px;
  font-weight: 500;
}
.infobox-val.mono { font-family: var(--font-mono); font-size: 13px; }

.tag-pill {
  display: inline-block;
  padding: 3px 10px;
  background: var(--ink-700);
  border: 1px solid var(--ink-500);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--chrome-300);
  margin: 2px 4px 2px 0;
}

.case-hero-image {
  margin-bottom: 60px;
  border: 1px solid var(--ink-600);
  overflow: hidden;
}
.case-hero-image img {
  width: 100%;
  height: auto;
  display: block;
}

.case-content {
  max-width: 820px;
  font-size: 16px;
  color: var(--chrome-200);
  line-height: 1.85;
}
.case-content p {
  margin-bottom: 20px;
}
.case-content p:first-child::first-letter {
  font-family: var(--font-display);
  font-size: 3em;
  font-weight: 700;
  float: left;
  line-height: 0.9;
  margin: 6px 12px 0 0;
  color: var(--arcss-blue-bright);
}

.bottom-cta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
  padding: 48px;
  background: var(--ink-900);
  border: 1px solid var(--ink-600);
  position: relative;
}
.bottom-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--arcss-blue);
}

/* ============ 关于页 ============ */
.about-intro {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 80px;
  align-items: start;
}

.about-para {
  font-size: 17px;
  color: var(--chrome-300);
  line-height: 1.8;
  margin-bottom: 20px;
}
.about-para strong {
  color: var(--chrome-100);
  font-weight: 600;
}

.about-right {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.milestone-box {
  background: var(--ink-800);
  padding: 32px 24px;
  border: 1px solid var(--ink-600);
}
.milestone-num {
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 800;
  color: var(--chrome-100);
  line-height: 1;
  letter-spacing: -0.02em;
}
.milestone-num span {
  font-size: 22px;
  color: var(--arcss-blue-bright);
  margin-left: 4px;
}
.milestone-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--chrome-400);
  letter-spacing: 0.05em;
  margin-top: 12px;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.value-card {
  background: var(--ink-900);
  padding: 48px 36px;
  border: 1px solid var(--ink-600);
  position: relative;
}
.value-num {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--arcss-blue-bright);
  letter-spacing: 0.1em;
  margin-bottom: 24px;
}
.value-title {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  color: var(--chrome-100);
  margin-bottom: 16px;
}
.value-desc {
  font-size: 15px;
  color: var(--chrome-300);
  line-height: 1.7;
}

.timeline {
  position: relative;
  padding-left: 60px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, transparent 0%, var(--arcss-blue) 10%, var(--arcss-blue) 90%, transparent 100%);
  opacity: 0.4;
}
.tl-item {
  position: relative;
  padding-bottom: 48px;
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 40px;
  align-items: start;
}
.tl-item::before {
  content: '';
  position: absolute;
  left: -46px;
  top: 8px;
  width: 12px;
  height: 12px;
  background: var(--ink-900);
  border: 2px solid var(--arcss-blue);
  transform: rotate(45deg);
}
.tl-year {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
  color: var(--arcss-blue-bright);
  letter-spacing: 0.05em;
}
.tl-content h4 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--chrome-100);
  margin-bottom: 10px;
}
.tl-content p {
  color: var(--chrome-300);
  line-height: 1.7;
  font-size: 15px;
}

/* ============ 联系页 ============ */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 60px;
  align-items: start;
}

.contact-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.contact-block {
  background: var(--ink-800);
  padding: 30px 26px;
  border: 1px solid var(--ink-600);
}
.cb-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--arcss-blue-bright);
  letter-spacing: 0.15em;
  margin-bottom: 16px;
}
.contact-block h4 {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--chrome-100);
  font-weight: 600;
  margin-bottom: 14px;
}
.contact-block p {
  color: var(--chrome-300);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 4px;
}
.contact-block p.mono {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--chrome-200);
}

.contact-form-wrap {
  background: var(--ink-800);
  padding: 48px;
  border: 1px solid var(--ink-600);
  position: relative;
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .case-infogrid { grid-template-columns: repeat(2, 1fr); }
  .about-intro { grid-template-columns: 1fr; gap: 40px; }
  .values-grid { grid-template-columns: 1fr; }
  .contact-wrap { grid-template-columns: 1fr; }
  .contact-info { grid-template-columns: 1fr 1fr; }
  .cases-toolbar { flex-direction: column; align-items: stretch; }
  .search-box { min-width: 0; }
}
@media (max-width: 640px) {
  .case-infogrid { grid-template-columns: 1fr; }
  .about-right { grid-template-columns: 1fr 1fr; }
  .contact-info { grid-template-columns: 1fr; }
  .contact-form-wrap { padding: 24px; }
  .timeline { padding-left: 40px; }
  .tl-item { grid-template-columns: 1fr; gap: 8px; }
  .bottom-cta { padding: 28px; }
}