:root {
  --navy: #0b2a4a;
  --navy-deep: #061a30;
  --ink: #1a2430;
  --muted: #5a6a78;
  --paper: #f3f6f9;
  --line: #d7e0e8;
  --accent: #b8860b;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Source Han Sans SC", "Noto Sans SC", "PingFang SC",
    "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
}

a {
  color: var(--navy);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.top {
  background: var(--navy-deep);
  border-bottom: 3px solid var(--accent);
}

.top-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 14px 16px;
}

.brand-banner {
  display: block;
  width: min(720px, 100%);
  height: auto;
}

.hero {
  position: relative;
  min-height: 52vh;
  overflow: hidden;
  background: var(--navy-deep);
}

.hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.55) saturate(0.9);
}

.hero-panel {
  position: relative;
  z-index: 1;
  max-width: 1080px;
  margin: 0 auto;
  padding: 72px 20px 64px;
  color: var(--white);
}

.eyebrow {
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.85;
  margin-bottom: 10px;
}

.hero h1 {
  font-size: clamp(34px, 6vw, 56px);
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.35);
}

.lead {
  margin-top: 14px;
  font-size: clamp(15px, 2.2vw, 18px);
  opacity: 0.92;
  max-width: 28em;
}

.block {
  max-width: 880px;
  margin: 0 auto;
  padding: 48px 20px 8px;
}

.block h2 {
  font-size: 22px;
  color: var(--navy);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--line);
}

.about p + p {
  margin-top: 14px;
}

.muted {
  color: var(--muted);
  font-size: 15px;
}

.contact {
  padding-bottom: 48px;
}

.contact-list {
  list-style: none;
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 4px solid var(--navy);
}

.contact-list li {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}

.contact-list li:last-child {
  border-bottom: none;
}

.contact-list span {
  color: var(--muted);
}

.more {
  margin-top: 18px;
  font-size: 14px;
  color: var(--muted);
}

.foot {
  background: var(--navy-deep);
  color: rgba(255, 255, 255, 0.82);
  text-align: center;
  padding: 28px 16px 36px;
  font-size: 13px;
}

.foot p + p {
  margin-top: 6px;
}

.beian a {
  color: rgba(255, 255, 255, 0.75);
}

.beian a:hover {
  color: #fff;
}

@media (max-width: 640px) {
  .hero-panel {
    padding: 56px 16px 48px;
  }

  .contact-list li {
    grid-template-columns: 56px 1fr;
    gap: 8px;
  }
}