:root {
  --navy: #071426;
  --navy-2: #0b2138;
  --panel: #ffffff;
  --line: #d7e3ee;
  --bg: #f3f8fb;
  --text: #122033;
  --muted: #607284;
  --cyan: #11c5d9;
  --teal: #16b88f;
  --blue: #1d6fe8;
  --lime: #8ee36a;
  --shadow: 0 18px 48px rgba(9, 32, 61, .14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }

.container {
  width: min(1240px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 20, 38, .96);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  backdrop-filter: blur(16px);
  box-shadow: 0 10px 34px rgba(0, 0, 0, .24);
}
.nav-shell {
  height: 70px;
  display: flex;
  align-items: center;
  gap: 22px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  font-weight: 800;
  white-space: nowrap;
}
.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .22);
  box-shadow: 0 0 24px rgba(17, 197, 217, .36);
}
.brand small {
  display: block;
  margin-top: -3px;
  color: #9fb7cd;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .08em;
}
.site-nav {
  flex: 1;
  display: flex;
  justify-content: flex-end;
  gap: 3px;
  color: #c6d4e2;
  font-size: 15px;
}
.site-nav a {
  padding: 8px 11px;
  border-radius: 999px;
  white-space: nowrap;
  transition: .2s ease;
}
.site-nav a:hover {
  color: #fff;
  background: rgba(255, 255, 255, .08);
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid rgba(17, 197, 217, .55);
  border-radius: 999px;
  color: #c8fbff;
  font-weight: 750;
  background: rgba(17, 197, 217, .08);
  white-space: nowrap;
}
.menu-toggle { display: none; }

.hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(circle at 82% 28%, rgba(17, 197, 217, .28), transparent 28%),
    radial-gradient(circle at 18% 72%, rgba(22, 184, 143, .24), transparent 26%),
    linear-gradient(135deg, #071426 0%, #0b2a46 55%, #06233a 100%);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .055) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .8), rgba(0, 0, 0, .18));
}
.hero-grid {
  position: relative;
  padding: 104px 0 82px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(420px, .95fr);
  gap: 58px;
  align-items: center;
}
.eyebrow {
  width: fit-content;
  margin: 0 0 22px;
  padding: 8px 14px;
  border: 1px solid rgba(17, 197, 217, .45);
  border-radius: 999px;
  color: #aefbff;
  background: rgba(17, 197, 217, .08);
  font-weight: 700;
  font-size: 14px;
}
.hero h1 {
  margin: 0 0 20px;
  font-size: clamp(40px, 5.6vw, 72px);
  line-height: 1.05;
  letter-spacing: 0;
}
.hero-lead {
  max-width: 680px;
  margin: 0;
  color: #c4d7e9;
  font-size: 19px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 8px;
  font-weight: 800;
}
.btn.primary {
  color: #061728;
  background: linear-gradient(135deg, var(--cyan), var(--lime));
  box-shadow: 0 14px 34px rgba(17, 197, 217, .28);
}
.btn.secondary {
  color: #eaf8ff;
  border: 1px solid rgba(255, 255, 255, .2);
  background: rgba(255, 255, 255, .06);
}
.hero-panel {
  min-height: 440px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, .14);
  background: rgba(6, 21, 38, .72);
  box-shadow: 0 24px 70px rgba(0, 0, 0, .3);
  padding: 24px;
  position: relative;
  overflow: hidden;
}
.hero-panel::before {
  content: "";
  position: absolute;
  inset: 24px;
  border: 1px solid rgba(17, 197, 217, .18);
  border-radius: 8px;
}
.panel-window {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 7px;
}
.panel-window span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .28);
}
.hub {
  position: absolute;
  left: 50%;
  top: 48%;
  transform: translate(-50%, -50%);
  width: 126px;
  height: 126px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  text-align: center;
  color: #fff;
  font-weight: 850;
  background: radial-gradient(circle, rgba(17, 197, 217, .42), rgba(17, 197, 217, .12));
  border: 1px solid rgba(17, 197, 217, .55);
  box-shadow: 0 0 60px rgba(17, 197, 217, .28);
}
.node {
  position: absolute;
  width: 142px;
  min-height: 72px;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 8px;
  background: rgba(255, 255, 255, .075);
  color: #dffaff;
  font-size: 13px;
}
.node strong { color: #fff; font-size: 16px; }
.node-a { left: 38px; top: 88px; }
.node-b { right: 42px; top: 88px; }
.node-c { left: 50px; bottom: 58px; }
.node-d { right: 52px; bottom: 58px; }

.section {
  width: min(1240px, calc(100% - 48px));
  margin: 0 auto;
  padding: 76px 0;
}
.surface {
  width: 100%;
  max-width: none;
  padding-left: max(24px, calc((100% - 1240px) / 2));
  padding-right: max(24px, calc((100% - 1240px) / 2));
  background: #fff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.section-head {
  max-width: 820px;
  margin: 0 auto 34px;
  text-align: center;
}
.section-kicker {
  margin: 0 0 8px;
  color: var(--blue);
  font-weight: 800;
  letter-spacing: .08em;
}
.section h2,
.section-head h2 {
  margin: 0;
  font-size: 34px;
  line-height: 1.25;
}
.section-head p:last-child {
  margin: 12px auto 0;
  color: var(--muted);
}

.profile-grid,
.capability-grid,
.faq-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.profile-item,
.capability-grid article,
.faq-grid article,
.text-panel,
.process-grid article {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(9, 32, 61, .08);
}
.profile-item {
  min-height: 160px;
  padding: 24px;
}
.profile-item h3,
.capability-grid h3,
.faq-grid h3,
.text-panel h3,
.process-grid h3 {
  margin: 0 0 10px;
  line-height: 1.3;
}
.profile-item p,
.capability-grid p,
.faq-grid p,
.text-panel p,
.process-grid p {
  margin: 0;
  color: var(--muted);
}
.rich-copy {
  margin-top: 22px;
  padding: 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}
.rich-copy h3 { margin: 0 0 10px; font-size: 24px; }
.rich-copy p { margin: 0; color: var(--muted); }
.capability-grid { grid-template-columns: repeat(3, 1fr); }
.capability-grid article {
  min-height: 190px;
  padding: 24px;
}

.image-card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.image-card,
.case-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(9, 32, 61, .08);
  overflow: hidden;
}
.image-card img,
.case-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #eaf6f8;
}
.image-card-body,
.case-content {
  padding: 22px;
}
.image-card h3,
.case-card h3 {
  margin: 0 0 8px;
}
.image-card p,
.case-card p {
  margin: 0;
  color: var(--muted);
}
.case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.case-card img { max-height: 310px; }
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.tags span {
  padding: 6px 10px;
  border-radius: 999px;
  color: #0b4467;
  background: #edf8fb;
  border: 1px solid #cde5ec;
  font-size: 13px;
  font-weight: 650;
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}
.text-panel {
  padding: 28px;
}
.text-panel ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}
.text-panel li { margin: 8px 0; }
.process-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}
.process-grid article {
  min-height: 180px;
  padding: 22px;
}
.process-grid b {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  margin-bottom: 14px;
  color: #061728;
  background: linear-gradient(135deg, var(--cyan), var(--lime));
}
.faq-grid { grid-template-columns: repeat(2, 1fr); }
.faq-grid article { padding: 22px; }
.news-preview-grid,
.news-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.news-preview-grid article,
.news-list article {
  min-height: 220px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 10px 30px rgba(9, 32, 61, .08);
}
.news-preview-grid span,
.news-list span,
.article-meta {
  color: var(--blue);
  font-size: 14px;
  font-weight: 800;
}
.news-preview-grid h3,
.news-list h3 {
  margin: 12px 0 10px;
  font-size: 20px;
  line-height: 1.35;
}
.news-preview-grid p,
.news-list p {
  margin: 0;
  color: var(--muted);
}
.section-more {
  margin-top: 28px;
  text-align: center;
}

.page-hero {
  color: #fff;
  background:
    radial-gradient(circle at 78% 28%, rgba(17, 197, 217, .26), transparent 30%),
    linear-gradient(135deg, #071426, #0b2a46);
}
.page-hero .container {
  padding: 74px 0;
}
.page-hero h1 {
  margin: 10px 0 14px;
  max-width: 920px;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.12;
}
.page-hero p {
  max-width: 760px;
  margin: 0;
  color: #c4d7e9;
  font-size: 18px;
}
.breadcrumb {
  color: #aefbff;
  font-weight: 750;
}
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 28px;
  align-items: start;
}
.article-body,
.article-side {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(9, 32, 61, .08);
}
.article-body {
  padding: 34px;
}
.article-body h2 {
  margin: 32px 0 12px;
  font-size: 27px;
}
.article-body h2:first-child { margin-top: 0; }
.article-body h3 {
  margin: 24px 0 10px;
  font-size: 21px;
}
.article-body p,
.article-body li {
  color: #43566a;
  font-size: 17px;
}
.article-body p { margin: 0 0 16px; }
.article-body ul,
.article-body ol {
  margin: 0 0 18px;
  padding-left: 22px;
}
.article-body a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-side {
  padding: 22px;
  position: sticky;
  top: 92px;
}
.article-side h3 {
  margin: 0 0 12px;
}
.article-side a {
  display: block;
  padding: 10px 0;
  color: #43566a;
  border-bottom: 1px solid var(--line);
}
.article-side a:last-child { border-bottom: 0; }
.source-box {
  margin-top: 28px;
  padding: 20px;
  border-radius: 8px;
  background: #eef8fb;
  border: 1px solid #cde5ec;
}
.source-box h3 {
  margin-top: 0;
}

.site-footer {
  color: #d4e3ee;
  background: var(--navy);
}
.footer-grid {
  padding: 54px 0 34px;
  display: grid;
  grid-template-columns: 1.35fr .7fr .95fr;
  gap: 38px;
}
.site-footer h2,
.site-footer h3 {
  margin: 0 0 14px;
  color: #fff;
}
.site-footer p,
.site-footer a {
  display: block;
  margin: 0 0 10px;
  color: #9fb2c5;
}
.site-footer a { color: #b8edf2; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding: 18px 28px;
  text-align: center;
  color: #7f95a9;
  font-size: 13px;
}

@media (max-width: 1180px) {
  .nav-cta { display: none; }
  .site-nav a { padding-left: 9px; padding-right: 9px; font-size: 14px; }
  .image-card-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 980px) {
  .container,
  .section { width: min(100% - 36px, 760px); }
  .nav-shell { justify-content: space-between; }
  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 0 14px;
    border: 1px solid rgba(17, 197, 217, .55);
    border-radius: 8px;
    color: #c8fbff;
    background: rgba(17, 197, 217, .08);
    font: inherit;
    font-weight: 750;
  }
  .site-nav {
    position: absolute;
    top: 70px;
    left: 18px;
    right: 18px;
    display: none;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    padding: 14px;
    border-radius: 8px;
    background: rgba(7, 20, 38, .98);
    border: 1px solid rgba(255, 255, 255, .1);
  }
  .site-nav.open { display: grid; }
  .site-nav a { text-align: center; }
  .hero-grid,
  .content-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .hero-grid { padding-top: 78px; }
  .hero-panel { min-height: 380px; }
  .profile-grid,
  .capability-grid,
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .case-grid,
  .faq-grid,
  .news-preview-grid,
  .news-list,
  .article-layout {
    grid-template-columns: 1fr;
  }
  .article-side { position: static; }
}
@media (max-width: 640px) {
  .container,
  .section { width: calc(100% - 32px); }
  .brand small { display: none; }
  .brand { font-size: 15px; }
  .hero h1 { font-size: 38px; }
  .profile-grid,
  .capability-grid,
  .process-grid,
  .image-card-grid {
    grid-template-columns: 1fr;
  }
  .node { width: 128px; }
  .node-a { left: 18px; }
  .node-b { right: 18px; }
  .node-c { left: 20px; }
  .node-d { right: 20px; }
}