:root {
  color-scheme: light;
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
  --ink: #15202b;
  --muted: #5d6b78;
  --line: #d8e1e8;
  --panel: #ffffff;
  --soft: #f5f8fb;
  --brand: #176f7a;
  --brand-dark: #0f4f58;
  --accent: #b47a2b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #f7fafc;
  color: var(--ink);
  font-size: 16px;
  line-height: 1.75;
}

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

a:hover {
  text-decoration: underline;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
}

.header-inner,
.section,
.footer-inner {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 700;
}

.brand img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(21, 32, 43, 0.12);
}

.brand span {
  font-size: 20px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 14px;
  color: var(--muted);
}

.hero {
  background: #eef5f7;
  border-bottom: 1px solid var(--line);
}

.hero-inner {
  width: min(1120px, calc(100% - 40px));
  min-height: 520px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  align-items: center;
  gap: 56px;
  padding: 58px 0 48px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
}

.hero-subtitle {
  margin-top: 12px;
  margin-bottom: 0;
  font-size: 18px;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.25;
}

h1 {
  font-size: 48px;
  font-weight: 800;
}

h2 {
  font-size: 28px;
  margin-bottom: 18px;
}

h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.lead {
  max-width: 680px;
  margin: 18px 0 0;
  color: #374957;
  font-size: 18px;
}

.button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--brand);
  border-radius: 6px;
  padding: 8px 16px;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
}

.button.secondary {
  background: #fff;
  color: var(--brand-dark);
}

.button:hover {
  text-decoration: none;
}

.hero-visual {
  position: relative;
  min-height: 330px;
  border: 1px solid #c6d9e1;
  border-radius: 8px;
  background: linear-gradient(135deg, #ffffff 0%, #dfecef 100%);
  overflow: hidden;
}

.photo-visual {
  min-height: 330px;
  background: #dfecef;
}

.photo-visual img {
  display: block;
  width: 100%;
  height: 330px;
  object-fit: contain;
}

.device-panel {
  position: absolute;
  inset: 34px 34px 56px 34px;
  border: 1px solid #bad0d8;
  border-radius: 8px;
  background: #11222c;
  box-shadow: 0 18px 40px rgba(20, 46, 57, 0.18);
}

.device-panel::before {
  content: "";
  position: absolute;
  inset: 18px;
  border: 1px solid rgba(184, 221, 229, 0.38);
  border-radius: 6px;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.08), transparent 45%),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.05) 0 1px, transparent 1px 28px);
}

.phone-panel {
  position: absolute;
  right: 24px;
  bottom: 24px;
  width: 112px;
  height: 184px;
  border: 8px solid #243943;
  border-radius: 20px;
  background: #f8fbfc;
  box-shadow: 0 12px 26px rgba(20, 46, 57, 0.24);
}

.phone-panel::before {
  content: "";
  position: absolute;
  inset: 20px 16px;
  border-radius: 6px;
  background: #d6e6ea;
}

.signal-line {
  position: absolute;
  left: 40px;
  right: 138px;
  bottom: 96px;
  height: 2px;
  background: var(--accent);
}

.section {
  padding: 54px 0;
}

.section.narrow {
  max-width: 860px;
}

.section p {
  margin: 0 0 16px;
  color: #394956;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 22px;
}

.section-lead {
  max-width: 840px;
  font-size: 18px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.info-card {
  min-height: 160px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  background: var(--panel);
}

.visual-card {
  aspect-ratio: 3 / 4;
  min-height: 0;
  display: grid;
  grid-template-rows: 3fr 1fr;
  gap: 10px;
  padding: 10px;
}

.visual-card,
.feature-item,
.process-step,
.contact-panel {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.94), rgba(221, 244, 248, 0.72)),
    #fff;
  box-shadow: 0 14px 32px rgba(34, 76, 89, 0.08);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.visual-card::after,
.feature-item::after,
.process-step::after,
.contact-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.58), transparent 38%);
  opacity: 0.72;
}

.visual-card:hover,
.feature-item:hover,
.process-step:hover,
.contact-panel:hover {
  transform: translateY(-6px);
  border-color: rgba(23, 111, 122, 0.45);
  box-shadow: 0 22px 46px rgba(31, 92, 109, 0.16);
  text-decoration: none;
}

.card-art {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: 100%;
  min-height: 0;
  margin: 0;
  border-radius: 8px;
  object-fit: cover;
  background: transparent;
  filter: drop-shadow(0 10px 18px rgba(28, 75, 92, 0.12));
}

.card-art-crop-edge {
  transform: scale(1.015);
}

.card-copy {
  position: relative;
  z-index: 1;
  min-height: 0;
  width: auto;
  margin: 0 16px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-self: stretch;
}

.card-copy h3 {
  margin-bottom: 8px;
}

.card-copy p {
  margin-bottom: 0;
  font-size: 15px;
  line-height: 1.65;
}

.visual-card h3,
.visual-card p,
.feature-item strong,
.feature-item span,
.process-step span,
.process-step strong,
.process-step p,
.contact-panel h3,
.contact-panel p {
  position: relative;
  z-index: 1;
}

.status-band {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--soft);
}

.section-band {
  border-top: 1px solid var(--line);
}

.status-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.status-item {
  border-left: 3px solid var(--brand);
  padding-left: 14px;
  color: #374957;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.feature-item {
  min-height: 150px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}

.feature-item strong {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
}

.feature-item span {
  display: block;
  color: #394956;
}

.mini-art {
  position: relative;
  z-index: 1;
  display: block;
  width: 72px;
  height: 72px;
  margin-bottom: 16px;
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 8px 18px rgba(28, 75, 92, 0.12);
}

.process-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.process-step {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
}

.process-step span {
  display: block;
  margin-bottom: 14px;
  color: var(--accent);
  font-weight: 800;
}

.process-step strong {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
}

.process-step p {
  margin: 0;
}

.feature-item.visual-card,
.process-step.visual-card {
  aspect-ratio: 3 / 4;
  min-height: 0;
  display: grid;
  grid-template-rows: 3fr 1fr;
  gap: 10px;
  padding: 10px;
}

.process-step.visual-card {
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.94), rgba(221, 244, 248, 0.72)),
    #fff;
}

.step-number {
  display: block;
  margin-bottom: 4px;
  color: var(--accent);
  font-weight: 800;
}

.contact-panel {
  display: flex;
  align-items: center;
  gap: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(221, 244, 248, 0.78)),
    #fff;
  box-shadow: 0 14px 32px rgba(34, 76, 89, 0.08);
  color: var(--ink);
  text-decoration: none;
}

.contact-title-link {
  color: var(--ink);
  text-decoration: none;
}

.contact-title-link:hover {
  color: var(--brand-dark);
  text-decoration: underline;
}

.contact-email {
  margin: 10px 0 0;
  color: var(--brand-dark);
  font-weight: 700;
}

.contact-email a {
  color: inherit;
  text-decoration: none;
}

.contact-email a:hover {
  text-decoration: underline;
}

.contact-art {
  width: 120px;
  height: 120px;
  flex: 0 0 auto;
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 12px 28px rgba(28, 75, 92, 0.14);
}

.text-link {
  position: relative;
  z-index: 1;
  display: inline-flex;
  margin-top: 8px;
  color: var(--brand-dark);
  font-weight: 700;
}

.content-list {
  padding-left: 22px;
  color: #394956;
}

.content-list li {
  margin-bottom: 10px;
}

.note {
  border-left: 4px solid var(--accent);
  padding: 14px 18px;
  background: #fff8ed;
  color: #504235;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #ffffff;
}

.footer-inner {
  padding: 28px 0 34px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

.footer-links,
.filings {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px 18px;
  margin-top: 12px;
}

.filings a {
  color: #4c5b66;
}

@media (max-width: 800px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 16px 0;
  }

  .nav {
    width: 100%;
    flex-wrap: wrap;
    gap: 12px 18px;
  }

  .hero-inner {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 0;
  }

  h1 {
    font-size: 36px;
  }

  .lead {
    font-size: 17px;
  }

  .grid,
  .status-list,
  .feature-grid,
  .process-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .header-inner,
  .section,
  .footer-inner,
  .hero-inner {
    width: min(100% - 28px, 1120px);
  }

  h1 {
    font-size: 31px;
  }

  h2 {
    font-size: 24px;
  }

  .contact-panel {
    align-items: flex-start;
    flex-direction: column;
  }
}