*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --ink: #172033;
  --muted: #637083;
  --line: #e5eaf1;
  --paper: #ffffff;
  --soft: #f4f7fb;
  --blue: #1f63d8;
  --blue-dark: #174a9e;
  --teal: #11a6a2;
  --amber: #d99826;
  --shadow: 0 18px 45px rgba(23, 32, 51, 0.12);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

.container {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.nav {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 19px;
  white-space: nowrap;
}

.brand img {
  height: 40px;
  width: auto;
  border-radius: 6px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  color: #344257;
  font-size: 15px;
}

.nav-links a:hover,
.nav-links .active {
  color: var(--blue);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 22px;
  border-radius: 6px;
  border: 1px solid transparent;
  font-weight: 700;
  cursor: pointer;
}

.btn-primary {
  color: #fff;
  background: var(--blue);
}

.btn-primary:hover {
  background: var(--blue-dark);
}

.btn-ghost {
  color: var(--blue);
  border-color: #b9cdf3;
  background: #fff;
}

.hero {
  min-height: 660px;
  background: url("./banner.jpg") center / cover no-repeat;
}

.hero-inner {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 80px 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 12px;
  border-radius: 5px;
  background: rgba(17, 166, 162, 0.18);
  color: #dbfffd;
  border: 1px solid rgba(219, 255, 253, 0.24);
  font-size: 14px;
  font-weight: 700;
}

.hero h1 {
  max-width: 760px;
  margin: 22px 0 22px;
  font-size: clamp(38px, 6vw, 68px);
  line-height: 1.12;
  letter-spacing: 0;
}

.hero p {
  max-width: 680px;
  margin: 0 0 34px;
  color: #dce7f5;
  font-size: 18px;
}

.hero-content {
  padding: 64px 0 56px;
  text-align: center;
}

.hero-content h1 {
  max-width: 760px;
  margin: 14px auto 18px;
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.2;
  color: var(--ink);
}

.hero-content p {
  max-width: 680px;
  margin: 0 auto 30px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.hero-content .btn-row {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
}

.hero-content .eyebrow {
  color: var(--teal);
  background: rgba(17, 166, 162, 0.1);
  border-color: rgba(17, 166, 162, 0.25);
}

.hero-content .metric {
  border-color: var(--line);
  background: #fff;
}

.hero-content .metric strong {
  color: var(--ink);
}

.hero-content .metric span {
  color: var(--muted);
}


.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  max-width: 650px;
  margin: 0 auto;
  gap: 14px;
}

.metric {
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.08);
  border-radius: 8px;
}

.metric strong {
  display: block;
  font-size: 28px;
  line-height: 1.1;
}

.metric span {
  display: block;
  margin-top: 6px;
  color: #c7d5e8;
  font-size: 13px;
}

.section {
  padding: 88px 0;
}

.section.soft {
  background: var(--soft);
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 34px;
}

.section-title {
  margin: 10px 0 0;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.25;
}

.section-desc {
  max-width: 560px;
  color: var(--muted);
  margin: 0;
}

.grid {
  display: grid;
  gap: 22px;
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.card {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 10px 28px rgba(23, 32, 51, 0.06);
  overflow: hidden;
}

.card-body {
  padding: 26px;
}

.card h3 {
  margin: 0 0 10px;
  font-size: 21px;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.solution-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.pill-list span {
  padding: 6px 10px;
  border-radius: 5px;
  background: #eef5ff;
  color: #285fae;
  font-size: 13px;
  font-weight: 700;
}

.about-panel {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 42px;
  align-items: center;
}

.value-list {
  display: grid;
  gap: 14px;
}

.value-item {
  padding: 22px;
  border-left: 4px solid var(--teal);
  background: #fff;
  border-radius: 6px;
}

.value-item h3 {
  margin: 0 0 6px;
}

.news-list {
  display: grid;
  gap: 14px;
}

.news-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 22px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.news-date {
  color: var(--blue);
  font-weight: 800;
}

.news-item h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.news-item p {
  margin: 0;
  color: var(--muted);
}

.cta {
  color: #fff;
  background: linear-gradient(135deg, #113866, #1f63d8 58%, #11a6a2);
}

.cta-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.cta h2 {
  margin: 0 0 10px;
  font-size: 34px;
}

.cta p {
  margin: 0;
  color: #dbe9fb;
}

.page-hero {
  padding: 92px 0 72px;
  color: #fff;
  background: linear-gradient(135deg, #14233b, #1f63d8);
}

.page-hero h1 {
  margin: 12px 0 10px;
  font-size: clamp(34px, 5vw, 56px);
}

.page-hero p {
  max-width: 720px;
  margin: 0;
  color: #dbe7f5;
}

.form-shell {
  width: min(460px, 100%);
  margin: 0 auto;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

.form-shell label {
  display: block;
  margin: 16px 0 8px;
  color: #344257;
  font-weight: 700;
}

.form-shell input,
.form-shell select,
.form-shell textarea {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid #cad4e2;
  border-radius: 6px;
  font: inherit;
}

.form-shell textarea {
  min-height: 110px;
  resize: vertical;
}

.form-shell .btn {
  margin-top: 24px;
  width: 100%;
}

.site-footer {
  padding: 46px 0 24px;
  color: #cbd5e1;
  background: #101827;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr repeat(3, 1fr);
  gap: 32px;
}

.site-footer h4 {
  margin: 0 0 14px;
  color: #fff;
}

.site-footer p,
.site-footer a {
  color: #9aa8ba;
}

.site-footer .brand img {
  background: rgba(255, 255, 255, 0.92);
  padding: 5px;
}

.footer-col {
  display: grid;
  gap: 8px;
  align-content: start;
}

.copyright {
  margin-top: 34px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.09);
  color: #7f8ea3;
  font-size: 13px;
}

@media (max-width: 900px) {
  .nav {
    height: auto;
    padding: 14px 0;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 14px;
  }

  .section-head,
  .cta-box {
    flex-direction: column;
  }

  .nav-links,
  .nav-actions {
    flex-direction: row;
    flex-wrap: wrap;
    width: 100%;
  }

  .nav-links {
    align-items: flex-start;
    gap: 8px 18px;
  }

  .nav-actions {
    gap: 10px;
  }

  .grid-3,
  .grid-2,
  .about-panel,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
  }

  .news-item {
    grid-template-columns: 1fr;
  }
}



.news-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.news-row {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 24px;
  align-items: stretch;
  height: 160px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 10px 28px rgba(23, 32, 51, 0.06);
  transition: box-shadow 0.2s;
}

.news-row:hover {
  box-shadow: 0 14px 36px rgba(23, 32, 51, 0.12);
}

.news-thumb {
  display: block;
  height: 100%;
}

.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-row-body {
  padding: 22px;
}

.news-row-body h3 {
  margin: 10px 0;
  font-size: 20px;
  line-height: 1.35;
}

.news-row-body p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 15px;
}

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  margin-top: 36px;
}

.page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s;
}

.page-btn:hover:not(:disabled):not(.active) {
  border-color: var(--blue);
  color: var(--blue);
}

.page-btn.active {
  border-color: var(--blue);
  background: var(--blue);
  color: #fff;
}

.page-btn:disabled {
  opacity: 0.35;
  cursor: default;
}

.article-hero {
  padding: 86px 0 74px;
  color: #fff;
  background-size: cover;
  background-position: center;
}

.article-hero h1 {
  max-width: 920px;
  margin: 16px 0;
  font-size: clamp(32px, 5vw, 54px);
  line-height: 1.18;
}

.article-hero p {
  max-width: 820px;
  margin: 0;
  color: #e6eef8;
  font-size: 18px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
}

.article-meta span {
  padding: 4px 9px;
  border-radius: 5px;
  background: #eef5ff;
}

.article-hero .article-meta span {
  color: #e8fffe;
  background: rgba(255, 255, 255, 0.14);
}

.back-link {
  display: inline-flex;
  margin-bottom: 18px;
  color: #dbeafe;
  font-weight: 700;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 28px;
  align-items: start;
}

.article-body,
.article-side {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 28px rgba(23, 32, 51, 0.06);
}

.article-body {
  padding: 34px;
}

.article-body h2 {
  margin: 0 0 14px;
  font-size: 24px;
}

.article-body h2:not(:first-child) {
  margin-top: 32px;
}

.article-body p,
.article-body li {
  color: #526075;
  font-size: 16px;
}

.article-body ul {
  margin: 0;
  padding-left: 22px;
}

.source-box {
  margin-top: 32px;
  padding: 16px;
  border-radius: 6px;
  background: var(--soft);
  color: var(--muted);
}

.source-box a {
  color: var(--blue);
  font-weight: 800;
}

.article-side {
  padding: 22px;
  position: sticky;
  top: 92px;
}

.article-side h3 {
  margin: 0 0 14px;
}

.related-link {
  display: block;
  padding: 14px 0;
  border-top: 1px solid var(--line);
  color: var(--ink);
  font-weight: 700;
}

.related-link span {
  display: block;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 900px) {
  .news-list,
  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-side {
    position: static;
  }

  .news-row {
    grid-template-columns: 1fr;
    height: auto;
  }

  .news-thumb img {
    aspect-ratio: 16 / 9;
    height: auto;
  }
}

.form-error { color: #d93025; font-size: 14px; margin: 8px 0 0; min-height: 20px; }
.form-foot { margin-top: 18px; text-align: center; color: var(--muted); font-size: 14px; }
.form-foot a { color: var(--blue); font-weight: 700; }
.form-shell hr { border: none; border-top: 1px solid var(--line); margin: 20px 0; }
.nav-user { font-weight: 700; color: var(--ink); margin-right: 8px; font-size: 14px; }