/* ----- 全局重置 ----- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: #080d18;
  color: #e6edf5;
  font-family: 'Segoe UI', 'PingFang SC', Roboto, system-ui, sans-serif;
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #111c2e; }
::-webkit-scrollbar-thumb { background: #1e90ff; border-radius: 8px; }

a { color: #5b9aff; text-decoration: none; }
a:hover { color: #8bbaff; }

.app-wrapper {
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 32px;
  width: 100%;
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* ----- 导航栏 ----- */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 0 14px;
  border-bottom: 1px solid #1a2740;
  flex-wrap: wrap;
}

.brand {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 1px;
  background: linear-gradient(135deg, #b0d4ff, #2b7fff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.brand-sub {
  font-size: 0.8rem;
  color: #5a7fa0;
  font-weight: 400;
  -webkit-text-fill-color: #5a7fa0;
  background: none;
  display: block;
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  gap: 36px;
  font-weight: 500;
  font-size: 1.05rem;
}

.nav-links a {
  cursor: pointer;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: 0.25s;
  color: #b0c8e6;
}

.nav-links a:hover {
  color: #ffffff;
  border-bottom-color: #2b7fff;
}

.nav-links a.active {
  color: #ffffff;
  border-bottom-color: #1e90ff;
}

/* ----- 页面容器 ----- */
.page-container {
  flex: 1;
  padding: 28px 0 40px;
}

/* ----- 通用组件 ----- */
h1 {
  font-size: 2.8rem;
  font-weight: 500;
  letter-spacing: 1px;
  line-height: 1.3;
}

h1 .highlight {
  color: #4d9aff;
}

h2 {
  font-size: 2.1rem;
  font-weight: 400;
  margin-bottom: 28px;
  letter-spacing: 0.5px;
  border-left: 6px solid #1e90ff;
  padding-left: 22px;
}

h3 {
  font-size: 1.4rem;
  font-weight: 500;
  margin-bottom: 8px;
  color: #d6e6ff;
}

.subtitle {
  font-size: 1.2rem;
  color: #8da6cc;
  margin-bottom: 32px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin: 28px 0 20px;
}

.card {
  background: #0f1a2e;
  border-radius: 20px;
  padding: 26px 24px;
  border: 1px solid #1f314a;
  transition: 0.25s;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
}

.card:hover {
  border-color: #2b7fff;
  background: #14223a;
  transform: translateY(-2px);
}

.card .tag {
  display: inline-block;
  background: #192d4a;
  color: #8bbaff;
  font-size: 0.78rem;
  padding: 2px 16px;
  border-radius: 30px;
  letter-spacing: 0.4px;
  margin-bottom: 12px;
}

.stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: 28px 48px;
  background: #0c162a;
  padding: 28px 32px;
  border-radius: 24px;
  border: 1px solid #1a2a44;
  margin: 28px 0 12px;
}

.stat-item {
  flex: 1 0 180px;
}
.stat-item strong {
  font-size: 1.5rem;
  color: #6aafff;
  display: block;
}

.badge {
  background: #10223b;
  padding: 4px 18px;
  border-radius: 40px;
  color: #7bb3ff;
  font-size: 0.85rem;
}

.footer-note {
  margin-top: 48px;
  padding: 18px 0 20px;
  border-top: 1px solid #1a2740;
  color: #5f7aa3;
  text-align: center;
  font-style: italic;
  letter-spacing: 0.6px;
}

/* ----- 图片/视频容器 ----- */
.media-block {
  width: 100%;
  border-radius: 14px;
  overflow: hidden;
  margin-bottom: 16px;
  background: #0b1428;
  border: 1px solid #1f314a;
  position: relative;
}

.media-block img,
.media-block video {
  width: 100%;
  height: auto;
  display: block;
}

.media-block .caption {
  padding: 8px 14px;
  font-size: 0.8rem;
  color: #6a8fc0;
  background: rgba(8, 13, 24, 0.85);
  border-top: 1px solid #1a2a44;
}

.media-block .placeholder-label {
  position: absolute;
  bottom: 12px;
  left: 16px;
  background: rgba(0, 0, 0, 0.7);
  padding: 4px 16px;
  border-radius: 30px;
  font-size: 0.75rem;
  color: #8bbaff;
  backdrop-filter: blur(4px);
  border: 1px solid rgba(30, 144, 255, 0.3);
}

.img-placeholder {
  width: 100%;
  min-height: 180px;
  background: linear-gradient(145deg, #111f38, #1a2d4a);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: #5b7fa0;
  border: 1px solid #1f314a;
  overflow: hidden;
  background-size: cover;
  background-position: center;
  position: relative;
}

.img-placeholder .badge-label {
  background: rgba(0, 0, 0, 0.6);
  padding: 6px 22px;
  border-radius: 40px;
  border: 1px solid rgba(30, 144, 255, 0.25);
  backdrop-filter: blur(4px);
  font-size: 0.85rem;
  color: #b8d4ff;
}

.media-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 20px 0 30px;
}

.media-row .media-block {
  margin-bottom: 0;
}

@media (max-width: 760px) {
  .media-row { grid-template-columns: 1fr; }
}

/* ----- 轮播图 ----- */
.banner-carousel {
  position: relative;
  width: 100%;
  border-radius: 28px;
  overflow: hidden;
  margin: 24px 0 36px;
  border: 1px solid #1a2a44;
  box-shadow: 0 12px 40px rgba(0,0,0,0.7);
  background: #080d18;
}

.carousel-track {
  display: flex;
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.carousel-slide {
  min-width: 100%;
  min-height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: cover;
  background-position: center;
  position: relative;
}

.carousel-slide .slide-overlay {
  background: rgba(6, 12, 26, 0.55);
  backdrop-filter: blur(3px);
  width: 100%;
  height: 100%;
  min-height: 360px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 30px 40px;
  text-align: center;
}

.slide-overlay h3 {
  font-size: 2.2rem;
  font-weight: 500;
  color: #ffffff;
  text-shadow: 0 2px 16px rgba(0,0,0,0.8);
  margin-bottom: 10px;
}

.slide-overlay p {
  font-size: 1.15rem;
  color: #c8ddff;
  max-width: 720px;
  text-shadow: 0 1px 8px rgba(0,0,0,0.6);
}

.carousel-indicators {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 14px;
  z-index: 6;
}

.carousel-indicators span {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #3a5a7a;
  cursor: pointer;
  transition: 0.3s;
}

.carousel-indicators span.active-dot {
  background: #1e90ff;
  box-shadow: 0 0 16px #1e90ff;
  width: 32px;
  border-radius: 30px;
}

/* ----- 案例详情数据 ----- */
.case-detail {
  background: #0c162a;
  border-radius: 16px;
  padding: 20px 24px;
  margin-top: 14px;
  border-left: 4px solid #1e90ff;
}

.case-detail .data-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  font-size: 0.95rem;
}

.case-detail .data-row span strong {
  color: #6aafff;
}

/* 联系页 */
.contact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  background: #0c162a;
  border-radius: 28px;
  padding: 34px 40px;
  border: 1px solid #1a2a44;
  margin-top: 20px;
}
.contact-item {
  flex: 1 0 200px;
}
.contact-item .label {
  color: #7f9ac9;
  font-size: 0.9rem;
  letter-spacing: 1px;
}
.contact-item .value {
  font-size: 1.3rem;
  font-weight: 400;
  word-break: break-all;
}

.about-list {
  list-style: none;
  margin: 16px 0;
}
.about-list li {
  padding: 10px 0 10px 28px;
  border-bottom: 1px solid #1a2740;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="%231e90ff" stroke-width="2"><path d="M5 12h14M12 5l7 7-7 7"/></svg>') left center no-repeat;
  background-size: 18px;
}

/* 响应式 */
@media (max-width: 700px) {
  .app-wrapper { padding: 0 16px; }
  .navbar { flex-direction: column; align-items: flex-start; gap: 12px; }
  .nav-links { flex-wrap: wrap; gap: 14px 22px; font-size: 0.95rem; }
  h1 { font-size: 1.8rem; }
  h2 { font-size: 1.6rem; }
  .stat-row { flex-direction: column; gap: 14px; }
  .carousel-slide { min-height: 220px; }
  .carousel-slide .slide-overlay { min-height: 220px; padding: 20px; }
  .slide-overlay h3 { font-size: 1.4rem; }
  .slide-overlay p { font-size: 0.9rem; }
  .contact-row { flex-direction: column; gap: 24px; }
}