:root {
  --brand: #003366;
  --brand-2: #0c6b80;
  --green: #2f7d50;
  --accent: #e94e1b;
  --gold: #d8a239;
  --bg: #ffffff;
  --soft: #f5f7f8;
  --mist: #e9f1ef;
  --ink: #102033;
  --muted: #5a6875;
  --line: rgba(0, 51, 102, 0.14);
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Source Han Sans SC", "Noto Sans CJK SC", Arial, "Microsoft YaHei", sans-serif;
  line-height: 1.65;
}

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

a {
  color: inherit;
}

.site-header {
  align-items: center;
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 24px;
  justify-content: space-between;
  left: 0;
  padding: 14px max(22px, calc((100vw - var(--max)) / 2));
  position: sticky;
  right: 0;
  top: 0;
  z-index: 20;
}

.brand {
  align-items: center;
  display: inline-flex;
  text-decoration: none;
}

.brand img {
  height: 58px;
  object-fit: contain;
  width: min(330px, 52vw);
}

.site-nav {
  align-items: center;
  display: flex;
  gap: 4px;
}

.site-nav a {
  border-radius: 8px;
  color: var(--ink);
  font-size: 0.93rem;
  font-weight: 700;
  padding: 10px 12px;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a.is-active {
  background: var(--soft);
  color: var(--brand);
}

.nav-toggle {
  background: transparent;
  border: 0;
  display: none;
  height: 42px;
  padding: 8px;
  width: 42px;
}

.nav-toggle span {
  background: var(--brand);
  display: block;
  height: 2px;
  margin: 6px 0;
  width: 24px;
}

.hero,
.section {
  margin: 0 auto;
  max-width: var(--max);
  padding: clamp(64px, 8vw, 112px) 24px;
}

.top-poster {
  background: #f6f1ea;
  border-bottom: 1px solid var(--line);
}

.top-poster img {
  aspect-ratio: 4044 / 2210;
  height: auto;
  object-fit: cover;
  width: 100%;
}

.hero {
  align-items: center;
  display: grid;
  gap: clamp(30px, 5vw, 70px);
  grid-template-columns: minmax(0, 0.86fr) minmax(340px, 1.04fr);
  min-height: calc(100vh - 75px);
}

.page-label,
.section-note {
  color: var(--accent);
  font-size: 0.94rem;
  font-weight: 800;
  margin: 0 0 14px;
}

.hero h1,
.section h2 {
  color: var(--brand);
  font-weight: 850;
  letter-spacing: 0;
  line-height: 1.12;
  margin: 0;
  text-wrap: balance;
}

.hero h1 {
  font-size: clamp(2.7rem, 6vw, 5.4rem);
}

.hero p,
.section-heading + p,
.policy-panel p,
.nature-panel p,
.industry-grid p,
.product-card span,
.value-list span,
.route-cards p {
  color: var(--muted);
  margin: 16px 0 0;
  text-wrap: pretty;
}

.hero-copy > p:not(.page-label) {
  font-size: 1.08rem;
  max-width: 640px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.btn {
  align-items: center;
  border-radius: 8px;
  display: inline-flex;
  font-weight: 800;
  justify-content: center;
  min-height: 48px;
  padding: 12px 22px;
  text-decoration: none;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

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

.btn-ghost {
  border: 1px solid var(--line);
  color: var(--brand);
}

.hero-media {
  background: var(--soft);
  border-radius: 12px;
  min-height: 420px;
  margin: 0;
  overflow: hidden;
  position: relative;
}

.hero-media img {
  height: 100%;
  min-height: 420px;
  object-fit: cover;
  width: 100%;
}

.hero-media figcaption {
  background: rgba(0, 51, 102, 0.88);
  bottom: 0;
  color: #fff;
  font-weight: 800;
  left: 0;
  padding: 14px 18px;
  position: absolute;
  right: 0;
}

.image-feature {
  display: grid;
  gap: 30px;
}

.image-feature img {
  aspect-ratio: 2752 / 1536;
  border-radius: 12px;
  object-fit: cover;
  width: 100%;
}

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

.section-heading {
  max-width: 780px;
}

.section h2 {
  font-size: clamp(2rem, 4.5vw, 3.55rem);
}

.intro-band {
  display: grid;
  gap: 32px;
  grid-template-columns: 0.88fr 1.12fr;
}

.intro-band .section-heading {
  grid-column: 1 / -1;
}

.fact-grid {
  display: grid;
  gap: 14px;
}

.fact-grid article,
.value-list article {
  background: var(--soft);
  border-radius: 12px;
  padding: 24px;
}

.fact-grid strong {
  color: var(--brand);
  display: block;
  font-size: clamp(2rem, 4vw, 3.25rem);
  line-height: 1;
}

.fact-grid span,
.value-list span {
  display: block;
  margin-top: 10px;
}

.intro-visual img,
.nature-panel img,
.product-card img {
  background: var(--soft);
  border-radius: 12px;
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.advantage-layout {
  display: grid;
  gap: 22px;
  grid-template-columns: 0.95fr 1.05fr;
  margin-top: 34px;
}

.policy-panel {
  background: var(--brand);
  border-radius: 12px;
  color: #fff;
  padding: clamp(28px, 4vw, 44px);
}

.policy-panel h3,
.nature-panel h3,
.industry-grid h3,
.product-card h3,
.route-cards h3 {
  color: var(--brand);
  font-size: 1.34rem;
  line-height: 1.24;
  margin: 0;
}

.policy-panel h3 {
  color: #fff;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.tag-cloud span {
  background: rgba(255, 255, 255, 0.13);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  color: #fff;
  font-weight: 750;
  padding: 9px 13px;
}

.nature-panel {
  align-items: center;
  background: var(--mist);
  border-radius: 12px;
  display: grid;
  gap: 24px;
  grid-template-columns: 0.95fr 1.05fr;
  padding: 22px;
}

.industry-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 34px;
}

.industry-grid article {
  border: 1px solid var(--line);
  border-radius: 12px;
  min-height: 260px;
  padding: 24px;
}

.industry-grid img {
  height: 58px;
  margin-bottom: 26px;
  width: 58px;
}

.products-section {
  background: linear-gradient(180deg, #fff 0%, #f5f7f8 100%);
  max-width: none;
}

.products-section > * {
  margin-left: auto;
  margin-right: auto;
  max-width: var(--max);
}

.product-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 34px;
}

.product-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}

.product-card img {
  border-radius: 0;
  height: 220px;
}

.product-card div {
  padding: 22px;
}

.product-card p {
  color: var(--accent);
  font-weight: 850;
  margin: 0 0 8px;
}

.product-card h3 {
  font-size: 1.55rem;
}

.large-card {
  grid-column: span 2;
}

.wide-card {
  grid-column: span 2;
}

.value-section {
  align-items: start;
  display: grid;
  gap: 34px;
  grid-template-columns: 0.88fr 1.12fr;
}

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

.value-list strong {
  color: var(--brand);
  display: block;
  font-size: 1.18rem;
}

.guide-section {
  background: var(--brand);
  border-radius: 12px;
  color: #fff;
  margin-bottom: 52px;
  padding: clamp(36px, 6vw, 68px);
}

.guide-section .section-note,
.guide-section h2 {
  color: #fff;
}

.guide-layout {
  display: grid;
  gap: 28px;
  grid-template-columns: 0.72fr 0.88fr 1fr;
  margin-top: 34px;
}

.guide-image-link {
  background: #fff;
  border-radius: 12px;
  display: block;
  max-height: 440px;
  overflow: hidden;
}

.guide-image-link img {
  height: 100%;
  object-fit: cover;
  object-position: top center;
  width: 100%;
}

.route-map {
  align-content: center;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 12px;
  display: grid;
  gap: 16px;
  padding: 28px;
}

.route-map span,
.route-map strong {
  align-items: center;
  background: #fff;
  border-radius: 10px;
  color: var(--brand);
  display: flex;
  font-weight: 850;
  min-height: 50px;
  padding: 12px 16px;
}

.route-map strong {
  background: var(--accent);
  color: #fff;
}

.route-map i {
  background: rgba(255, 255, 255, 0.45);
  display: block;
  height: 28px;
  margin-left: 24px;
  width: 2px;
}

.route-cards {
  display: grid;
  gap: 14px;
}

.route-cards article {
  background: #fff;
  border-radius: 12px;
  padding: 22px;
}

.phone-band {
  align-items: center;
  background: #fff;
  border-radius: 12px;
  color: var(--brand);
  display: flex;
  flex-wrap: wrap;
  gap: 14px 24px;
  justify-content: space-between;
  margin-top: 26px;
  padding: 22px 26px;
}

.phone-band span {
  font-size: 1.1rem;
  font-weight: 800;
}

.phone-band a {
  color: var(--accent);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 900;
  line-height: 1;
  text-decoration: none;
}

.phone-band .guide-cta {
  background: var(--accent);
  border-radius: 8px;
  color: #fff;
  font-size: 1rem;
  line-height: 1.2;
  padding: 12px 18px;
}

.guide-hero {
  align-items: center;
  display: flex;
  gap: 28px;
  justify-content: space-between;
  margin: 0 auto;
  max-width: var(--max);
  padding: clamp(54px, 7vw, 92px) 24px 34px;
}

.guide-hero h1 {
  color: var(--brand);
  font-size: clamp(2.35rem, 5vw, 4.8rem);
  line-height: 1.12;
  margin: 0;
}

.guide-hero p:not(.page-label) {
  color: var(--muted);
  max-width: 660px;
}

.guide-page-layout {
  align-items: start;
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.72fr);
  margin: 0 auto;
  max-width: var(--max);
  padding: 28px 24px clamp(64px, 8vw, 104px);
}

.guide-text {
  background: var(--soft);
  border-radius: 12px;
  padding: clamp(24px, 4vw, 40px);
}

.guide-text h2,
.guide-text h3,
.guide-text h4 {
  color: var(--brand);
  line-height: 1.25;
  margin: 0;
}

.guide-text h2 {
  font-size: clamp(1.8rem, 3vw, 2.7rem);
}

.guide-text article {
  border-top: 1px solid var(--line);
  margin-top: 24px;
  padding-top: 24px;
}

.guide-text h3 {
  font-size: 1.38rem;
}

.guide-text h4 {
  font-size: 1.05rem;
  margin-top: 18px;
}

.guide-text p {
  color: var(--ink);
  margin: 9px 0 0;
}

.guide-text a {
  color: var(--accent);
  font-weight: 850;
}

.guide-poster {
  margin: 0;
  position: sticky;
  top: 96px;
}

.guide-poster img {
  border-radius: 12px;
  width: 100%;
}

.module-section {
  margin: 0 auto;
  max-width: var(--max);
  padding: clamp(62px, 8vw, 108px) 24px;
}

.module-kicker {
  color: var(--accent);
  font-size: 0.94rem;
  font-weight: 850;
  margin-bottom: 14px;
}

.module-layout {
  align-items: center;
  display: grid;
  gap: clamp(28px, 5vw, 64px);
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 1.08fr);
}

.module-copy,
.module-head {
  max-width: 760px;
}

.module-copy h1,
.module-head h1,
.article-header h1 {
  color: var(--brand);
  font-size: clamp(2.4rem, 5vw, 4.6rem);
  line-height: 1.12;
  margin: 0;
  text-wrap: balance;
}

.module-copy h2 {
  color: var(--brand);
  font-size: 1.35rem;
  line-height: 1.25;
  margin: 28px 0 0;
}

.module-copy p,
.module-head p {
  color: var(--muted);
  font-size: 1.04rem;
  margin: 18px 0 0;
  text-wrap: pretty;
}

.module-copy a {
  color: var(--accent);
  font-weight: 850;
}

.module-card {
  background: var(--soft);
  border-radius: 12px;
  max-width: 920px;
  padding: clamp(28px, 5vw, 54px);
}

.module-visual {
  margin: 0;
}

.module-visual img {
  aspect-ratio: 16 / 10;
  border-radius: 12px;
  object-fit: cover;
  width: 100%;
}

.module-stats {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 28px;
}

.module-stats span {
  background: var(--soft);
  border-radius: 12px;
  color: var(--muted);
  display: grid;
  gap: 6px;
  padding: 18px;
}

.module-stats strong {
  color: var(--brand);
  font-size: 1.25rem;
  line-height: 1.1;
}

.news-list {
  border-top: 1px solid var(--line);
  margin-top: 34px;
}

.news-item {
  align-items: start;
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 24px;
  grid-template-columns: 132px minmax(0, 1fr);
  padding: 26px 0;
}

.news-item time {
  color: var(--accent);
  font-weight: 850;
}

.news-item h2 {
  font-size: clamp(1.25rem, 2vw, 1.7rem);
  line-height: 1.25;
  margin: 0;
}

.news-item h2 a {
  color: var(--brand);
  text-decoration: none;
}

.news-item h2 a:hover {
  color: var(--accent);
}

.news-item p {
  color: var(--muted);
  margin: 10px 0 0;
}

.module-more {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--brand);
  border: 0;
  border-radius: 8px;
  color: #fff;
  cursor: pointer;
  font: inherit;
  font-weight: 850;
  margin-top: 30px;
  min-height: 48px;
  padding: 12px 22px;
}

.module-link-button {
  text-decoration: none;
}

.module-more.is-done {
  background: var(--muted);
}

.article-detail {
  margin: 0 auto;
  max-width: 860px;
  padding: clamp(56px, 8vw, 102px) 24px;
}

.article-back {
  color: var(--accent);
  display: inline-flex;
  font-weight: 850;
  margin-bottom: 24px;
  text-decoration: none;
}

.article-header {
  border-bottom: 1px solid var(--line);
  padding-bottom: 28px;
}

.article-header time {
  color: var(--muted);
  display: block;
  margin-top: 16px;
}

.article-detail p {
  color: var(--ink);
  font-size: 1.08rem;
  line-height: 1.9;
  margin: 24px 0 0;
}

.article-detail figure {
  margin: 34px 0;
}

.article-detail figure img {
  border-radius: 12px;
  margin: 0 auto;
  max-height: 780px;
  object-fit: contain;
}

.article-detail figcaption {
  color: var(--muted);
  font-size: 0.94rem;
  margin-top: 10px;
  text-align: center;
}

.article-detail blockquote {
  background: var(--soft);
  border-radius: 12px;
  color: var(--brand);
  font-size: 1.16rem;
  font-weight: 800;
  line-height: 1.75;
  margin: 30px 0;
  padding: 24px;
}

.article-detail a {
  color: var(--accent);
  font-weight: 850;
}

.site-footer {
  align-items: center;
  border-top: 1px solid var(--line);
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  margin: 0 auto;
  max-width: var(--max);
  padding: 28px 24px 44px;
}

.site-footer div {
  display: grid;
}

.site-footer strong {
  color: var(--brand);
}

@media (max-width: 980px) {
  .hero,
  .intro-band,
  .advantage-layout,
  .value-section,
  .guide-layout,
  .guide-page-layout,
  .module-layout {
    grid-template-columns: 1fr;
  }

  .industry-grid,
  .product-grid,
  .module-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    background: #fff;
    border-bottom: 1px solid var(--line);
    display: none;
    left: 0;
    padding: 10px 22px 20px;
    position: absolute;
    right: 0;
    top: 75px;
  }

  .site-nav.is-open {
    display: grid;
  }

  .site-nav a {
    padding: 12px 10px;
  }

  .hero {
    min-height: auto;
    padding-top: 54px;
  }

  .top-poster img {
    aspect-ratio: 16 / 10;
    object-position: center top;
  }

  .hero-media,
  .hero-media img {
    min-height: 320px;
  }

  .nature-panel {
    grid-template-columns: 1fr;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .guide-hero {
    align-items: flex-start;
    flex-direction: column;
  }

  .guide-poster {
    position: static;
  }
}

@media (max-width: 560px) {
  .site-header {
    padding-left: 16px;
    padding-right: 16px;
  }

  .brand img {
    height: 44px;
    width: min(230px, 58vw);
  }

  .hero,
  .section {
    padding-left: 18px;
    padding-right: 18px;
  }

  .hero-actions,
  .industry-grid,
  .product-grid,
  .module-stats,
  .news-item {
    display: grid;
    grid-template-columns: 1fr;
  }

  .large-card,
  .wide-card {
    grid-column: auto;
  }

  .btn {
    width: 100%;
  }

  .phone-band {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}