:root {
  --navy: #0a2e5c;
  --navy-2: #123f73;
  --cyan: #29b6f6;
  --cyan-2: #03a9f4;
  --ink: #182230;
  --muted: #64748b;
  --line: #dbe5ef;
  --bg: #f5f8fb;
  --white: #ffffff;
  --shadow: 0 20px 50px rgba(10, 46, 92, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

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

.hxf-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: #fff;
  border-bottom: 1px solid #edf2f7;
  box-shadow: 0 2px 10px rgba(10, 46, 92, 0.04);
}

.hxf-top {
  display: none;
  justify-content: space-between;
  gap: 16px;
  padding: 8px clamp(18px, 5vw, 64px);
  color: #d8ecff;
  background: var(--navy);
  font-size: 13px;
}

.hxf-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  height: 80px;
  min-height: 80px;
  padding: 0 32px;
}

.hxf-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 330px;
}

.hxf-logo {
  width: 34px;
  height: 34px;
  border-radius: 0;
  object-fit: cover;
}

.hxf-brand strong,
.hxf-brand span {
  display: block;
}

.hxf-brand strong {
  color: var(--navy);
  font-size: 18px;
  line-height: 1.2;
  font-weight: 900;
}

.hxf-brand span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 400;
}

.hxf-menu {
  display: flex;
  align-items: center;
  gap: 26px;
  color: #0b2a4a;
  font-size: 16px;
  font-weight: 500;
}

.hxf-menu-list {
  display: flex;
  align-items: center;
  gap: 26px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.hxf-menu-list li {
  margin: 0;
  padding: 0;
}

.hxf-menu a:hover {
  color: var(--cyan-2);
}

.hxf-nav-cta {
  min-width: 104px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 7px;
  color: #fff !important;
  background: var(--cyan);
  font-size: 14px;
  font-weight: 700;
}

.hxf-nav-phone {
  position: relative;
  padding-left: 22px;
  color: var(--navy) !important;
  font-size: 20px;
  font-weight: 500;
}

.hxf-nav-phone::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 13px;
  height: 13px;
  transform: translateY(-50%);
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 5px -4px 0 -4px var(--cyan);
}

.hxf-language {
  display: flex;
  gap: 8px;
  align-items: center;
}

.hxf-language ul {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.hxf-language a {
  display: inline-flex;
  min-width: 38px;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--navy);
  background: var(--white);
  font-weight: 800;
}

.hxf-language-select {
  width: 62px;
  height: 36px;
  padding: 0 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--navy);
  background: var(--white);
  font: inherit;
  font-size: 13px;
  font-weight: 800;
  cursor: pointer;
}

.hxf-menu-button {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--navy);
  background: var(--white);
  cursor: pointer;
  font-size: 20px;
}

.hxf-hero {
  position: relative;
  height: 700px;
  min-height: 700px;
  overflow: hidden;
  color: var(--white);
  background: var(--navy);
}

.hxf-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(10, 46, 92, 0.78), rgba(10, 46, 92, 0.78)),
    url("../images/hero-factory.jpg");
  background-size: cover;
  background-position: center;
}

.hxf-hero-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 700px;
  padding: 0 clamp(18px, 5vw, 64px);
  text-align: center;
}

.hxf-eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
}

.hxf-hero h1,
.hxf-page-hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: 56px;
  line-height: 1.14;
  font-weight: 900;
  letter-spacing: 0;
}

.hxf-hero-text {
  max-width: 900px;
  margin: 24px auto 0;
  color: #fff;
  font-size: 20px;
  line-height: 1.7;
}

.hxf-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 28px;
}

.hxf-button,
.hxf-form button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 0 32px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-weight: 900;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.hxf-button:hover,
.hxf-form button:hover {
  transform: translateY(-1px);
}

.hxf-button.primary,
.hxf-form button {
  color: var(--white);
  background: var(--cyan);
}

.hxf-button.secondary {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.62);
  background: rgba(255, 255, 255, 0.1);
}

.hxf-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.18);
  box-shadow: var(--shadow);
}

.hxf-stats-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: center;
  min-height: 170px;
  padding: 24px clamp(18px, 8vw, 160px);
  background: #f8fafc;
  text-align: center;
}

.hxf-stats-band strong,
.hxf-stats-band span {
  display: block;
}

.hxf-stats-band strong {
  color: var(--navy);
  font-size: 52px;
  line-height: 1;
  font-weight: 900;
}

.hxf-stats-band span {
  margin-top: 12px;
  color: #223248;
  font-size: 14px;
}

.hxf-stat-grid div {
  min-height: 126px;
  padding: 26px;
  background: rgba(3, 19, 37, 0.56);
}

.hxf-stat-grid strong,
.hxf-stat-grid span {
  display: block;
}

.hxf-stat-grid strong {
  color: var(--cyan);
  font-size: 38px;
}

.hxf-stat-grid span {
  margin-top: 8px;
  color: #e9f4ff;
  font-size: 14px;
}

.hxf-section {
  padding: 92px clamp(18px, 5vw, 64px);
}

.hxf-section.bg {
  background: var(--bg);
}

.hxf-section.dark {
  color: var(--white);
  background: var(--navy);
}

.hxf-section-head {
  max-width: 800px;
  margin: 0 auto 42px;
  text-align: center;
}

.hxf-section h2,
.hxf-section-head h2,
.hxf-content h2 {
  margin: 0;
  color: var(--navy);
  font-size: 40px;
  line-height: 1.2;
  font-weight: 900;
  letter-spacing: 0;
}

.hxf-section.dark h2,
.hxf-section.dark .hxf-section-head p {
  color: var(--white);
}

.hxf-section-head p:not(.hxf-eyebrow),
.hxf-content p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.72;
}

.hxf-section-head .hxf-eyebrow:empty {
  display: none;
}

.hxf-section.dark .hxf-eyebrow {
  color: #81d8ff;
}

.hxf-grid {
  display: grid;
  gap: 28px;
}

.hxf-grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.hxf-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.hxf-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
  box-shadow: 0 10px 28px rgba(10, 46, 92, 0.08);
}

.hxf-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: #eef4fa;
}

.hxf-card-body {
  padding: 24px;
}

.hxf-card h3 {
  margin: 0 0 10px;
  color: var(--navy);
  font-size: 20px;
  font-weight: 800;
}

.hxf-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.hxf-split {
  display: grid;
  grid-template-columns: minmax(300px, 0.8fr) minmax(0, 1fr);
  gap: 46px;
  align-items: center;
}

.hxf-list {
  display: grid;
  gap: 16px;
}

.hxf-list-item {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 18px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.hxf-list-item > span {
  color: var(--cyan);
  font-size: 28px;
  font-weight: 900;
}

.hxf-page-hero {
  padding: clamp(62px, 8vw, 96px) clamp(18px, 5vw, 64px);
  color: var(--white);
  background: linear-gradient(135deg, var(--navy), var(--navy-2));
}

.hxf-page-hero p {
  max-width: 760px;
  color: #d7e7f7;
  font-size: 18px;
  line-height: 1.7;
}

.hxf-content {
  max-width: 980px;
  margin: 0 auto;
}

.hxf-content img {
  border-radius: 8px;
}

.hxf-product-detail-image {
  width: 100%;
  max-height: 560px;
  margin-bottom: 30px;
  object-fit: contain;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
}

.hxf-card-date {
  display: block;
  margin-bottom: 10px;
  color: #53708d;
  font-size: 13px;
  font-weight: 800;
}

.hxf-section-action {
  display: flex;
  justify-content: center;
  margin-top: 32px;
}

.hxf-detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 36px;
}

.hxf-detail-box,
.hxf-aside,
.hxf-form-wrap {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 14px 36px rgba(10, 46, 92, 0.08);
}

.hxf-detail-box {
  padding: clamp(24px, 4vw, 38px);
}

.hxf-aside {
  height: fit-content;
  padding: 24px;
}

.hxf-aside a {
  display: flex;
  margin-top: 14px;
}

.hxf-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.hxf-form-wrap {
  padding: clamp(24px, 4vw, 38px);
}

.hxf-form input,
.hxf-form select,
.hxf-form textarea {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 14px;
  color: var(--ink);
  background: var(--white);
  font: inherit;
}

.hxf-form textarea {
  grid-column: 1 / -1;
  min-height: 120px;
  padding-top: 12px;
  resize: vertical;
}

.hxf-form button {
  border: 0;
  width: fit-content;
}

.hxf-footer {
  color: #dbeafe;
  background: #061d3a;
}

.hxf-footer-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(180px, 0.6fr));
  gap: 28px;
  padding: 46px clamp(18px, 5vw, 64px);
}

.hxf-footer h2,
.hxf-footer h3 {
  margin: 0 0 12px;
  color: var(--white);
}

.hxf-footer p,
.hxf-footer a,
.hxf-footer li {
  color: #bcd4ec;
  line-height: 1.75;
}

.hxf-footer ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.hxf-copyright {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px;
  padding: 20px clamp(18px, 5vw, 64px);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #a9c6df;
  font-size: 14px;
}

@media (max-width: 1100px) {
  .hxf-grid.four {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hxf-hero-inner,
  .hxf-split,
  .hxf-detail-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .hxf-top {
    display: none;
  }

  .hxf-menu-button {
    display: inline-grid;
    place-items: center;
  }

  .hxf-nav {
    min-height: 70px;
  }

  .hxf-menu {
    position: absolute;
    inset: 70px 18px auto 18px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--white);
    box-shadow: var(--shadow);
  }

  .hxf-menu.is-open {
    display: flex;
  }

  .hxf-menu a {
    min-height: 42px;
    display: flex;
    align-items: center;
  }

  .hxf-menu-list {
    display: grid;
    gap: 0;
  }

  .hxf-hero,
  .hxf-hero-inner {
    height: auto;
    min-height: 520px;
  }

  .hxf-hero h1,
  .hxf-page-hero h1 {
    font-size: 40px;
  }

  .hxf-grid.four,
  .hxf-grid.three,
  .hxf-form,
  .hxf-footer-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 540px) {
  .hxf-hero,
  .hxf-hero-inner {
    min-height: 500px;
  }

  .hxf-brand {
    min-width: 0;
  }

  .hxf-brand strong {
    max-width: 210px;
    font-size: 15px;
  }

  .hxf-stat-grid {
    grid-template-columns: 1fr;
  }

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