:root {
  --navy: #0b1f33;
  --blue: #0d6f8c;
  --blue2: #0a5671;
  --orange: #f49a2f;
  --text: #263f57;
  --muted: #72859a;
  --line: #dfe7ee;
  --bg: #f4f7fa;
  --white: #fff;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  color: var(--text);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  background: #fff;
}
a {
  color: inherit;
  text-decoration: none;
}
.container {
  width: min(1200px, calc(100% - 40px));
  margin: auto;
}
.topbar {
  background: #0a2034;
  color: #c7d5e2;
  font-size: 13px;
}
.topbar-inner {
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.topbar a {
  color: #fff;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(15, 50, 80, 0.08);
}
.header-inner {
  height: 82px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 250px;
}
.brand img {
  width: 46px;
  height: 46px;
}
.brand span {
  display: flex;
  flex-direction: column;
}
.brand strong {
  font-size: 20px;
  color: #17354d;
}
.brand small {
  font-size: 12px;
  color: #8091a2;
  margin-top: 3px;
}
.nav {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-left: auto;
}
.nav a {
  font-size: 15px;
  color: #40566c;
  position: relative;
}
.nav a:hover,
.nav a.active {
  color: #0b7898;
}
.nav a.active:after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -12px;
  height: 2px;
  background: var(--orange);
}
.header-phone {
  display: flex;
  flex-direction: column;
  border-left: 1px solid #e3e9ef;
  padding-left: 22px;
}
.header-phone small {
  color: #8493a3;
  font-size: 11px;
}
.header-phone b {
  color: #e87819;
  font-size: 18px;
  margin-top: 2px;
}
.menu-btn {
  display: none;
  border: 0;
  background: none;
  font-size: 24px;
}
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(120deg, #0a1e31 0%, #0b3448 60%, #0c5a6f 100%);
  color: #fff;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(
      circle at 80% 20%,
      rgba(255, 255, 255, 0.13),
      transparent 30%
    ),
    linear-gradient(
      135deg,
      transparent 0 60%,
      rgba(255, 255, 255, 0.04) 60% 61%,
      transparent 61% 100%
    );
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 70px;
  align-items: center;
  min-height: 610px;
  padding: 70px 0 95px;
}
.eyebrow,
.section-title > span,
.why-intro > span,
.section-head-row span,
.booking-box > div > span,
.subhero span {
  display: block;
  color: var(--orange);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 2px;
}
.hero h1 {
  font-size: 52px;
  line-height: 1.25;
  margin: 16px 0 22px;
}
.hero h1 em {
  font-style: normal;
  color: #7fd0e2;
}
.hero-copy > p {
  max-width: 700px;
  color: #c7d7e4;
  font-size: 18px;
  line-height: 1.9;
}
.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 32px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 24px;
  border-radius: 8px;
  font-weight: 700;
}
.btn.primary {
  background: var(--orange);
  color: #fff;
}
.btn.ghost {
  border: 1px solid rgba(255, 255, 255, 0.45);
  color: #fff;
}
.hero-points {
  display: flex;
  gap: 25px;
  margin-top: 34px;
  color: #b7cbd9;
  font-size: 14px;
}
.hero-points span:before {
  content: "✓";
  color: #65c8da;
  margin-right: 7px;
}
.hero-panel {
  position: relative;
  background: #fff;
  color: var(--text);
  border-radius: 18px;
  padding: 32px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.22);
}
.panel-badge {
  position: absolute;
  right: 24px;
  top: -14px;
  background: var(--orange);
  color: #fff;
  border-radius: 999px;
  padding: 7px 14px;
  font-size: 13px;
}
.hero-panel h2 {
  font-size: 25px;
  margin: 0 0 10px;
}
.hero-panel > p {
  color: var(--muted);
  line-height: 1.7;
}
.quick-list {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}
.quick-list a {
  display: grid;
  grid-template-columns: 38px 1fr auto;
  align-items: center;
  padding: 13px 14px;
  background: #f5f8fa;
  border-radius: 9px;
}
.quick-list b {
  color: #0b7898;
}
.quick-list i {
  font-style: normal;
  font-size: 12px;
  color: #e87819;
}
.hero-cityline {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 70px;
  background: url("../images/beijing-line.svg") center bottom/cover no-repeat;
  opacity: 0.35;
}
.section {
  padding: 82px 0;
}
.service-section {
  background: #fff;
}
.section-title {
  text-align: center;
  margin-bottom: 42px;
}
.section-title h2,
.section-head-row h2,
.why-intro h2 {
  font-size: 34px;
  margin: 10px 0 10px;
}
.section-title p,
.section-head-row p,
.why-intro p {
  color: var(--muted);
  line-height: 1.8;
}
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.service-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px;
  background: #fff;
  transition: 0.25s;
}
.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 18px 40px rgba(23, 54, 79, 0.1);
  border-color: #bad2df;
}
.service-no {
  position: absolute;
  right: 18px;
  top: 8px;
  font-size: 56px;
  color: #eef3f6;
  font-weight: 800;
}
.service-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #e9f4f7;
  color: #0a6f8b;
  font-weight: 800;
}
.service-card h3 {
  font-size: 20px;
  margin: 18px 0 10px;
}
.service-card p {
  color: var(--muted);
  line-height: 1.8;
  min-height: 58px;
}
.service-card > span {
  color: #0b7898;
  font-weight: 700;
  font-size: 14px;
}
.why-section {
  background: #f2f6f8;
}
.why-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 55px;
  align-items: center;
}
.why-intro p {
  font-size: 16px;
}
.text-link {
  display: inline-block;
  margin-top: 18px;
  color: #0b7898;
  font-weight: 700;
}
.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.why-grid article {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
}
.why-grid b {
  color: var(--orange);
  font-size: 13px;
}
.why-grid h3 {
  margin: 10px 0 8px;
}
.why-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
  font-size: 14px;
}
.section-head-row {
  display: flex;
  justify-content: space-between;
  align-items: end;
  margin-bottom: 34px;
}
.section-head-row a {
  color: #0b7898;
  font-weight: 700;
}
.district-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}
.district-grid a {
  padding: 16px 8px;
  text-align: center;
  background: #f6f8fa;
  border: 1px solid var(--line);
  border-radius: 8px;
  transition: 0.2s;
}
.district-grid a:hover {
  background: #0b6f8c;
  color: #fff;
}
.case-section {
  background: #f8fafb;
}
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.case-card {
  background: #fff;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
}
.case-cover {
  height: 220px;
  display: flex;
  align-items: flex-end;
  padding: 18px;
  background: linear-gradient(135deg, #235b70, #0e2e43);
  position: relative;
}
.case-cover:before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    30deg,
    transparent 50%,
    rgba(255, 255, 255, 0.1) 50%
  );
}
.cover-2 {
  background: linear-gradient(135deg, #4d6c7f, #142f40);
}
.cover-3 {
  background: linear-gradient(135deg, #60757e, #173a49);
}
.case-cover span {
  position: relative;
  background: rgba(255, 255, 255, 0.92);
  padding: 7px 12px;
  border-radius: 99px;
  font-size: 13px;
}
.case-body {
  padding: 22px;
}
.case-body h3 {
  margin: 0 0 10px;
}
.case-body p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}
.process-section {
  background: #0b2438;
  color: #fff;
}
.section-title.light p {
  color: #b7c8d7;
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 15px;
}
.process-grid article {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.03);
}
.process-grid b {
  color: var(--orange);
}
.process-grid h3 {
  margin: 14px 0 8px;
}
.process-grid p {
  color: #b9c8d5;
  line-height: 1.7;
  font-size: 14px;
}
.booking-section {
  padding: 55px 0;
}
.booking-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(120deg, #0b6b87, #0b3550);
  color: #fff;
  border-radius: 18px;
  padding: 34px 42px;
}
.booking-box h2 {
  font-size: 30px;
  margin: 8px 0;
}
.booking-box p {
  color: #d4e3eb;
  margin: 0;
}
.booking-box > a {
  display: flex;
  flex-direction: column;
  background: #fff;
  color: #173b52;
  padding: 16px 24px;
  border-radius: 12px;
}
.booking-box small {
  font-size: 12px;
  color: #7b8b99;
}
.booking-box strong {
  font-size: 22px;
  margin-top: 4px;
}
.site-footer {
  background: #081a2a;
  color: #b8c5d1;
  padding-top: 58px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: 45px;
  padding-bottom: 42px;
}
.footer-brand img {
  width: 80px;
}
.footer-grid h3 {
  color: #fff;
  margin: 0 0 18px;
}
.footer-grid a,
.footer-grid p {
  display: block;
  margin: 10px 0;
  color: #b8c5d1;
  font-size: 14px;
}
.copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 18px 20px;
  display: flex;
  justify-content: center;
  gap: 18px;
  font-size: 13px;
}
.subhero {
  background: linear-gradient(120deg, #0b2135, #0b5b71);
  color: #fff;
  padding: 70px 0;
}
.subhero h1 {
  font-size: 42px;
  margin: 12px 0;
}
.subhero p {
  color: #cbdbe5;
  font-size: 17px;
}
.content-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.detail-card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px;
}
.detail-card > span {
  position: absolute;
  right: 22px;
  top: 15px;
  font-size: 48px;
  color: #edf2f5;
  font-weight: 800;
}
.detail-card h2 {
  margin: 0 0 12px;
}
.detail-card p {
  color: var(--muted);
  line-height: 1.85;
}
.article-list {
  display: grid;
  gap: 18px;
}
.article-list article {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px;
}
.article-list span {
  color: #0b7898;
  font-weight: 700;
  font-size: 13px;
}
.article-list h2 {
  margin: 10px 0;
}
.article-list p,
.prose p {
  color: var(--muted);
  line-height: 1.9;
}
.prose {
  max-width: 900px;
}
.prose h2 {
  margin-top: 30px;
}
.contact-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 30px;
}
.contact-panel {
  background: #0b3047;
  color: #fff;
  border-radius: 16px;
  padding: 34px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.contact-panel span {
  color: #9dcbd8;
}
.contact-panel strong {
  font-size: 32px;
  margin: 14px 0;
}
.contact-panel p {
  color: #c7d6df;
}
.mobile-bar {
  display: none;
}
@media (max-width: 1000px) {
  .nav {
    display: none;
  }
  .nav.open {
    display: flex;
    position: absolute;
    top: 82px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 30px;
    border-bottom: 1px solid var(--line);
  }
  .menu-btn {
    display: block;
    margin-left: auto;
  }
  .header-phone {
    display: none;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 35px;
  }
  .hero h1 {
    font-size: 42px;
  }
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .why-layout {
    grid-template-columns: 1fr;
  }
  .district-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .process-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (max-width: 700px) {
  .container {
    width: min(100% - 28px, 1200px);
  }
  .topbar {
    display: none;
  }
  .header-inner {
    height: 70px;
  }
  .brand {
    min-width: auto;
  }
  .brand strong {
    font-size: 17px;
  }
  .brand img {
    width: 40px;
    height: 40px;
  }
  .hero-grid {
    min-height: auto;
    padding: 60px 0 90px;
  }
  .hero h1 {
    font-size: 34px;
  }
  .hero-copy > p {
    font-size: 16px;
  }
  .hero-points {
    flex-direction: column;
    gap: 8px;
  }
  .hero-panel {
    padding: 24px;
  }
  .section {
    padding: 58px 0;
  }
  .section-title h2,
  .section-head-row h2,
  .why-intro h2 {
    font-size: 27px;
  }
  .service-grid,
  .case-grid,
  .content-grid,
  .contact-layout {
    grid-template-columns: 1fr;
  }
  .district-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .process-grid {
    grid-template-columns: 1fr;
  }
  .section-head-row {
    display: block;
  }
  .section-head-row a {
    display: inline-block;
    margin-top: 10px;
  }
  .booking-box {
    display: block;
    padding: 28px;
  }
  .booking-box > a {
    margin-top: 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .copyright {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .mobile-bar {
    position: fixed;
    z-index: 60;
    bottom: 0;
    left: 0;
    right: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: #fff;
    box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.12);
  }
  .mobile-bar a {
    padding: 15px;
    text-align: center;
    font-weight: 700;
  }
  .mobile-bar a:first-child {
    background: #0b6f8c;
    color: #fff;
  }
  .mobile-bar a:last-child {
    background: var(--orange);
    color: #fff;
  }
}
@media (max-width: 420px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .district-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-actions {
    flex-direction: column;
  }
  .hero-actions .btn {
    width: 100%;
  }
}

/* 列表分页页面 */
.list-page {
  background: #f6f8fa;
}
.list-layout,
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 30px;
  align-items: start;
}
.paged-list {
  display: grid;
  gap: 18px;
}
.paged-item {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
  transition: 0.25s;
}
.paged-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(25, 55, 78, 0.08);
}
.paged-thumb {
  min-height: 150px;
  border-radius: 10px;
  background: linear-gradient(135deg, #0b6984, #173348);
  display: flex;
  align-items: flex-end;
  padding: 15px;
  overflow: hidden;
  position: relative;
}
.paged-thumb:before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    35deg,
    transparent 52%,
    rgba(255, 255, 255, 0.1) 52%
  );
}
.paged-thumb span {
  position: relative;
  background: #fff;
  color: #0b6f8c;
  padding: 6px 11px;
  border-radius: 30px;
  font-size: 12px;
  font-weight: 700;
}
.paged-meta {
  display: flex;
  gap: 18px;
  color: #8a99a7;
  font-size: 13px;
}
.paged-meta span {
  color: #0b7898;
}
.paged-info h2 {
  font-size: 21px;
  margin: 12px 0 10px;
}
.paged-info h2 a:hover {
  color: #0b7898;
}
.paged-info p {
  color: var(--muted);
  line-height: 1.8;
  margin: 0 0 13px;
}
.read-more {
  color: #0b7898;
  font-weight: 700;
  font-size: 14px;
}
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 22px;
}
.pagination a {
  min-width: 38px;
  height: 38px;
  padding: 0 12px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}
.pagination a:hover,
.pagination a.active {
  background: #0b6f8c;
  border-color: #0b6f8c;
  color: #fff;
}
.list-sidebar {
  display: grid;
  gap: 18px;
  position: sticky;
  top: 105px;
}
.sidebar-box {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 24px;
}
.sidebar-box h3 {
  margin: 0 0 15px;
}
.sidebar-box strong {
  display: block;
  color: #e87819;
  font-size: 23px;
  margin-bottom: 10px;
}
.sidebar-box p {
  color: var(--muted);
  line-height: 1.75;
  font-size: 14px;
}
.sidebar-box > a {
  display: block;
  padding: 9px 0;
  border-bottom: 1px dashed #e2e8ed;
  color: #52697d;
}
.sidebar-box > a:last-child {
  border-bottom: 0;
}
.sidebar-box > a:hover {
  color: #0b7898;
}
.article-subhero h1 {
  max-width: 900px;
}
.article-page {
  background: #f6f8fa;
}
.article-content {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 15px;
  padding: 38px;
}
.article-lead {
  font-size: 17px;
  line-height: 1.9;
  color: #526b7e;
  background: #f2f7f9;
  border-left: 4px solid #0b7898;
  padding: 18px 20px;
  margin-bottom: 30px;
}
.article-content h2 {
  font-size: 23px;
  margin: 32px 0 12px;
}
.article-content p {
  color: var(--muted);
  font-size: 16px;
  line-height: 2;
}
.article-contact {
  margin: 35px 0 24px;
  padding: 24px;
  background: linear-gradient(120deg, #0b6b87, #0b3550);
  color: #fff;
  border-radius: 12px;
}
.article-contact h3 {
  margin: 0 0 8px;
}
.article-contact p {
  color: #d8e6ed;
  margin: 0 0 14px;
}
.article-contact a {
  display: inline-block;
  background: var(--orange);
  padding: 10px 18px;
  border-radius: 7px;
  font-weight: 700;
}
.back-list {
  color: #0b7898;
  font-weight: 700;
}
@media (max-width: 900px) {
  .list-layout,
  .article-layout {
    grid-template-columns: 1fr;
  }
  .list-sidebar {
    position: static;
  }
  .paged-item {
    grid-template-columns: 180px 1fr;
  }
}
@media (max-width: 650px) {
  .paged-item {
    grid-template-columns: 1fr;
  }
  .paged-thumb {
    min-height: 170px;
  }
  .article-content {
    padding: 24px;
  }
  .pagination {
    flex-wrap: wrap;
  }
}

/* 使用主站 /images/logo.jpg 作为北京分站 Logo */
.brand img {
  width: 46px;
  height: 46px;
  object-fit: contain;
  background: #fff;
  border-radius: 10px;
}
.footer-brand img {
  width: 64px;
  max-height: 64px;
  object-fit: contain;
  object-position: left center;
  background: #fff;
  border-radius: 8px;
  padding: 4px;
}