:root {
  --black: #050505;
  --ink: #171717;
  --panel: #2f2f2f;
  --line: #dedede;
  --paper: #f4f4f4;
  --white: #ffffff;
  --red: #e31822;
  --teal: #1c838a;
  --gold: #c48b2c;
  --muted: #686868;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

.notice-bar {
  min-height: 34px;
  padding: 0 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  background: #303030;
  color: var(--white);
  font-weight: 700;
  display: none;
}

.notice-bar a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.site-header {
  min-height: 120px;
  padding: 24px 42px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 28px;
  background: var(--black);
  color: var(--white);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 250px;
}

.brand-mark {
  width: 64px;
  height: 54px;
  display: grid;
  place-items: center;
  background: var(--red);
  color: var(--white);
  clip-path: polygon(15% 0, 85% 0, 100% 100%, 50% 78%, 0 100%);
  font-size: 34px;
  font-weight: 900;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 22px;
  line-height: 1.25;
}

.brand small {
  margin-top: 5px;
  color: #cfcfcf;
  font-size: 13px;
}

.hero {
  min-height: 430px;
  margin: 0;
  display: grid;
  place-items: center;
  background: linear-gradient(90deg, rgba(0, 0, 0, .45), rgba(0, 0, 0, .18)), var(--hero-image, url("/assets/img/hero-enterprise.jpg"));
  background-size: cover;
  background-position: center;
  color: var(--white);
  text-align: center;
}

.hero-content {
  width: min(950px, 88vw);
  padding: 48px 20px;
}

.eyebrow {
  margin: 0 0 12px;
  color: #f3f3f3;
  letter-spacing: 0;
  font-size: 13px;
  font-weight: 900;
}

.hero h1 {
  margin: 0;
  font-size: clamp(34px, 5vw, 62px);
  line-height: 1.12;
  font-weight: 400;
}

.hero p:not(.eyebrow) {
  width: min(820px, 92%);
  margin: 22px auto 0;
  font-size: 23px;
  line-height: 1.5;
}

.hero-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 190px;
  min-height: 68px;
  margin-top: 30px;
  padding: 0 28px;
  border-radius: 7px;
  background: var(--red);
  color: var(--white);
  font-size: 22px;
  font-weight: 900;
}

.section {
  padding: 58px 42px;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 18px;
}

.section-heading span {
  color: var(--red);
  font-size: 13px;
  font-weight: 900;
}

.section-heading h2 {
  margin: 0;
  font-size: 34px;
}

.intro-section {
  background: var(--white);
}

.intro-copy {
  max-width: 1120px;
  margin: 0;
  color: #242424;
  font-size: 20px;
  line-height: 1.9;
}

.contact-line {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.contact-line span {
  padding: 12px 16px;
  border-left: 4px solid var(--red);
  background: #f5f5f5;
  color: #313131;
}

.feature-section {
  background: #ededed;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-item {
  background: var(--white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 16px 42px rgba(0, 0, 0, .08);
}

.feature-item img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  display: block;
}

.feature-body {
  padding: 22px;
}

.feature-body h3 {
  margin: 8px 0 12px;
  font-size: 24px;
}

.feature-body p {
  margin: 0;
  color: #555;
  line-height: 1.75;
}

.message-section {
  padding: 64px 42px;
  background: #111;
  color: var(--white);
}

.message-panel {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 42px;
  max-width: 1180px;
  margin: 0 auto;
  align-items: start;
}

.message-panel h2 {
  margin: 0 0 18px;
  font-size: 42px;
}

.message-panel p {
  color: #d7d7d7;
  line-height: 1.8;
}

.message-form {
  display: grid;
  gap: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

label {
  display: grid;
  gap: 8px;
  color: #e8e8e8;
  font-weight: 700;
}

input,
textarea {
  width: 100%;
  border: 1px solid #4a4a4a;
  border-radius: 6px;
  outline: 0;
  background: #242424;
  color: var(--white);
  padding: 14px 16px;
  font: inherit;
}

textarea {
  resize: vertical;
}

.message-form button {
  min-height: 54px;
  border: 0;
  border-radius: 6px;
  background: var(--red);
  color: var(--white);
  font-size: 18px;
  font-weight: 900;
  cursor: pointer;
}

.form-result {
  min-height: 24px;
  margin: 0;
  color: #fff;
}

.site-footer {
  min-height: 86px;
  padding: 24px 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: var(--black);
  color: #d8d8d8;
}

@media (max-width: 1080px) {
  .site-header {
    align-items: stretch;
    flex-direction: column;
  }

  .feature-grid,
  .message-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .notice-bar,
  .site-header,
  .section,
  .message-section,
  .site-footer {
    padding-left: 18px;
    padding-right: 18px;
  }

  .notice-bar,
  .site-footer {
    flex-direction: column;
    align-items: flex-start;
    padding-top: 12px;
    padding-bottom: 12px;
  }

  .hero {
    min-height: 420px;
  }

  .hero p:not(.eyebrow) {
    font-size: 18px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}