:root {
  --message-ink: #080d16;
  --message-blue: #0b5cff;
  --message-line: #d9dde4;
  --message-muted: #626a76;
  --message-paper: #ffffff;
}

.message-page {
  background: var(--message-paper);
  color: var(--message-ink);
  font-family: Arial, "Helvetica Neue", "Microsoft YaHei", sans-serif;
}

.message-page .message-header {
  padding: 18px 26px 0;
}

.message-page .header-shell {
  max-width: 1480px;
  min-height: 86px;
  grid-template-columns: minmax(290px, 0.9fr) minmax(500px, 1.3fr) auto;
  padding: 0 26px 0 30px;
  border: 0;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.16);
}

.message-page .brand { gap: 14px; }
.message-page .brand-logo { width: 52px; height: 52px; border-radius: 50%; }
.message-page .brand strong { font-size: 25px; }
.message-page .brand small { margin-top: 6px; color: #69717d; font-size: 10px; }
.message-page .desktop-nav { gap: 30px; font-size: 15px; }
.message-page .desktop-nav a { padding: 34px 0 31px; }
.message-page .desktop-nav a.active { border-color: var(--message-blue); color: var(--message-ink); }
.message-page .quote-link { border-radius: 3px; background: var(--message-ink); border-color: var(--message-ink); }

.message-page .search-round {
  position: relative;
  width: 46px;
  height: 46px;
  border: 0;
  border-radius: 3px;
  background: var(--message-ink);
}

.message-page .search-round span {
  position: absolute;
  top: 13px;
  left: 13px;
  width: 16px;
  height: 16px;
  border: 3px solid #fff;
  border-radius: 50%;
}

.message-page .search-round span::after {
  content: "";
  position: absolute;
  width: 8px;
  height: 3px;
  right: -7px;
  bottom: -4px;
  background: #fff;
  transform: rotate(45deg);
}

.message-page .language-switch {
  min-height: 46px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid #cdd2da;
  border-radius: 3px;
  overflow: hidden;
}

.message-page .language-switch button {
  min-width: 38px;
  border: 0;
  border-radius: 0;
  background: #fff;
  color: #68707b;
  font-size: 11px;
  font-weight: 800;
  cursor: pointer;
}

.message-page .language-switch button.active { background: var(--message-ink); color: #fff; }

.inquiry-hero {
  position: relative;
  min-height: 780px;
  height: min(900px, 100vh);
  overflow: hidden;
  background: #080d16;
  color: #fff;
}

.inquiry-hero > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.inquiry-hero-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(4, 8, 15, 0.96) 0%, rgba(4, 8, 15, 0.78) 35%, rgba(4, 8, 15, 0.18) 76%), linear-gradient(0deg, rgba(4, 8, 15, 0.75), transparent 45%);
}

.inquiry-hero-content {
  position: relative;
  z-index: 2;
  width: min(1480px, calc(100% - 104px));
  margin: 0 auto;
  padding-top: clamp(170px, 20vh, 220px);
  padding-bottom: 150px;
}

.inquiry-kicker,
.brief-index {
  margin: 0 0 24px;
  color: #fff;
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
}

.inquiry-hero h1 {
  max-width: 900px;
  margin: 0;
  color: #fff;
  font-size: clamp(68px, 6.6vw, 106px);
  line-height: 0.9;
  font-weight: 800;
  letter-spacing: 0;
}

.inquiry-title-en,
.inquiry-title-zh {
  display: block;
}

.inquiry-title-zh {
  margin-top: 20px;
  font-family: "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
  font-size: clamp(34px, 3vw, 46px);
  line-height: 1.08;
  font-weight: 800;
}

.inquiry-hero-summary {
  max-width: 620px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 18px;
  line-height: 1.75;
}

.hero-start {
  width: 210px;
  margin-top: 24px;
  padding: 14px 0;
  display: flex;
  justify-content: flex-start;
  border-top: 1px solid rgba(255, 255, 255, 0.6);
  color: #fff;
  font-weight: 800;
}

.inquiry-process {
  position: absolute;
  z-index: 2;
  left: 50%;
  bottom: 0;
  width: min(1480px, calc(100% - 104px));
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid rgba(255, 255, 255, 0.38);
  list-style: none;
  transform: translateX(-50%);
}

.inquiry-process li {
  min-height: 88px;
  padding: 24px 30px;
  display: flex;
  align-items: center;
  gap: 22px;
  border-right: 1px solid rgba(255, 255, 255, 0.24);
}

.inquiry-process li:first-child { padding-left: 0; }
.inquiry-process li:last-child { border-right: 0; }
.inquiry-process span { color: #55bdf0; font-size: 13px; font-weight: 800; }
.inquiry-process strong { font-size: 17px; }

.brief-section {
  width: min(1480px, calc(100% - 104px));
  margin: 0 auto;
  padding: 120px 0 100px;
  display: grid;
  grid-template-columns: minmax(300px, 0.7fr) minmax(640px, 1.3fr);
  gap: 92px;
  align-items: start;
}

.brief-intro { position: sticky; top: 136px; }
.brief-index { color: var(--message-blue); }
.brief-intro h2 { max-width: 540px; margin: 0; font-size: 54px; line-height: 1.12; letter-spacing: 0; }
.brief-intro > p:not(.brief-index) { max-width: 470px; margin: 28px 0 0; color: var(--message-muted); font-size: 17px; line-height: 1.8; }

.brief-contact {
  margin-top: 64px;
  padding-top: 24px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px 24px;
  border-top: 1px solid #aab1bc;
}

.brief-contact span { color: var(--message-muted); font-size: 14px; font-weight: 700; }
.brief-contact a { font-size: 20px; font-weight: 800; }

.inquiry-form-premium {
  padding: 0;
  border: 0;
  background: transparent;
  gap: 0 28px;
}

.inquiry-form-premium .form-section-title {
  min-height: 76px;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 20px;
  border-top: 2px solid var(--message-ink);
  border-bottom: 1px solid var(--message-line);
}

.form-section-title span { color: var(--message-blue); font-size: 13px; font-weight: 800; }
.form-section-title strong { font-size: 23px; }
.inquiry-form-premium > label:not(.form-honeypot) { padding: 28px 0 32px; gap: 15px; border-bottom: 1px solid var(--message-line); font-size: 15px; font-weight: 700; }

.inquiry-form-premium input,
.inquiry-form-premium textarea {
  min-height: 54px;
  padding: 0;
  border: 0;
  border-bottom: 1px solid #9da5b0;
  background: transparent;
  color: var(--message-ink);
  font-size: 18px;
  outline: none;
}

.inquiry-form-premium textarea { min-height: 150px; padding-top: 14px; line-height: 1.7; }
.inquiry-form-premium input:focus,
.inquiry-form-premium textarea:focus { border-bottom-color: var(--message-blue); box-shadow: 0 1px 0 var(--message-blue); }
.inquiry-form-premium input::placeholder,
.inquiry-form-premium textarea::placeholder { color: #949ba5; }

.request-options {
  margin: 0;
  padding: 28px 0 34px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  border: 0;
  border-bottom: 1px solid var(--message-line);
}

.request-options label { position: relative; cursor: pointer; }
.request-options input { position: absolute; opacity: 0; pointer-events: none; }
.request-options span {
  min-height: 58px;
  padding: 14px 10px;
  display: grid;
  place-items: center;
  border: 1px solid #b7bdc6;
  background: transparent;
  color: #3f4650;
  font-size: 15px;
  font-weight: 800;
  text-align: center;
}

.request-options input:checked + span { border-color: var(--message-blue); background: var(--message-blue); color: #fff; }
.request-options input:focus-visible + span { outline: 3px solid rgba(11, 92, 255, 0.3); outline-offset: 2px; }

.form-submit-row {
  padding: 34px 0 0;
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 32px;
  align-items: center;
}

.inquiry-form-premium .checkbox-line { padding: 0 !important; border: 0 !important; font-size: 14px !important; line-height: 1.65; }
.inquiry-form-premium .checkbox-line input { min-height: auto; accent-color: var(--message-blue); }

.inquiry-submit {
  min-height: 62px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid var(--message-ink);
  border-radius: 3px;
  background: var(--message-ink);
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  cursor: pointer;
}

.inquiry-submit:hover { background: var(--message-blue); border-color: var(--message-blue); }
.inquiry-submit:disabled { cursor: wait; opacity: 0.65; }
.inquiry-submit b { font-size: 20px; }

.inquiry-form-premium .form-status {
  min-height: 0;
  margin-top: 22px;
  padding: 0;
  color: var(--message-muted);
  font-size: 14px;
  line-height: 1.7;
}

.inquiry-form-premium .form-status:not(:empty) { padding: 18px 20px; border-left: 4px solid var(--message-blue); background: #eaf0ff; }
.inquiry-form-premium .form-status.is-success { color: #064729; border-left-color: #0b8750; background: #e8f6ef; }
.inquiry-form-premium .form-status.is-error { color: #8b2020; border-left-color: #c23a3a; background: #fff0f0; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.message-page .chat-launcher { border-radius: 3px; background: var(--message-blue); }

.message-footer {
  min-height: 110px;
  padding: 0 max(52px, calc((100% - 1480px) / 2));
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 30px;
  align-items: center;
  border-top: 1px solid #202632;
  background: var(--message-ink);
  color: #fff;
}

.message-footer strong { font-size: 26px; }
.message-footer span { color: #9ca4b0; font-size: 13px; }
.message-footer a { padding-bottom: 4px; border-bottom: 1px solid #fff; font-weight: 800; }

@media (max-width: 1250px) {
  .message-page .header-shell { grid-template-columns: 260px 1fr auto; }
  .message-page .desktop-nav { gap: 20px; }
  .message-page .quote-link { display: none; }
  .brief-section { gap: 54px; }
}

@media (min-width: 981px) and (max-height: 760px) {
  .inquiry-hero {
    min-height: 660px;
    height: 100vh;
  }

  .inquiry-hero-content {
    padding-top: 112px;
    padding-bottom: 116px;
  }

  .inquiry-kicker {
    margin-bottom: 18px;
  }

  .inquiry-hero h1 {
    font-size: clamp(64px, 5.7vw, 90px);
  }

  .inquiry-title-zh {
    margin-top: 16px;
    font-size: 36px;
  }

  .inquiry-hero-summary {
    max-width: 590px;
    margin-top: 18px;
    font-size: 16px;
    line-height: 1.6;
  }

  .hero-start {
    margin-top: 16px;
    padding: 10px 0;
  }

  .inquiry-process li {
    min-height: 74px;
    padding-top: 18px;
    padding-bottom: 18px;
  }
}

@media (max-width: 980px) {
  .message-page .message-header { padding: 14px 16px 0; }
  .message-page .header-shell { min-height: 72px; grid-template-columns: 1fr auto; padding: 0 18px; }
  .message-page .desktop-nav, .message-page .quote-link, .message-page .search-round { display: none; }
  .message-page .brand-logo { width: 44px; height: 44px; }
  .message-page .brand strong { font-size: 21px; }
  .message-page .brand small { display: none; }
  .message-page .menu-button { display: inline-flex; min-height: 44px; border-radius: 3px; }
  .inquiry-hero { min-height: 700px; height: 88vh; }
  .inquiry-hero-content, .inquiry-process, .brief-section { width: calc(100% - 48px); }
  .inquiry-hero-content { padding-bottom: 126px; }
  .inquiry-hero h1 { font-size: 64px; }
  .inquiry-title-zh { font-size: 38px; }
  .brief-section { grid-template-columns: 1fr; padding: 84px 0; }
  .brief-intro { position: static; }
  .brief-intro h2 { font-size: 42px; }
}

@media (max-width: 640px) {
  .message-page .language-switch { display: none; }
  .message-page .header-shell { max-width: none; }
  .message-page .brand { gap: 10px; }
  .message-page .brand strong { font-size: 19px; }
  .inquiry-hero { min-height: 650px; height: 86vh; }
  .inquiry-hero-content { width: calc(100% - 36px); padding-top: 174px; }
  .inquiry-kicker { margin-bottom: 18px; font-size: 11px; }
  .inquiry-hero h1 { font-size: 49px; line-height: 0.94; }
  .inquiry-title-zh { margin-top: 20px; font-size: 30px; line-height: 1.15; }
  .inquiry-hero-summary { margin-top: 26px; font-size: 16px; line-height: 1.7; }
  .inquiry-process { width: calc(100% - 36px); }
  .inquiry-process li { min-height: 82px; padding: 18px 10px; display: grid; gap: 6px; }
  .inquiry-process li:first-child { padding-left: 0; }
  .inquiry-process strong { font-size: 13px; }
  .brief-section { width: calc(100% - 36px); padding: 64px 0; gap: 52px; }
  .brief-intro h2 { font-size: 38px; }
  .brief-intro > p:not(.brief-index) { font-size: 16px; }
  .brief-contact { margin-top: 38px; grid-template-columns: 1fr; gap: 7px; }
  .brief-contact a { margin-bottom: 12px; }
  .inquiry-form-premium { grid-template-columns: 1fr; }
  .inquiry-form-premium > label { grid-column: 1 / -1; }
  .request-options { grid-template-columns: repeat(2, 1fr); }
  .form-section-title strong { font-size: 21px; }
  .inquiry-form-premium > label:not(.form-honeypot) { font-size: 15px; }
  .form-submit-row { grid-template-columns: 1fr; }
  .message-footer { min-height: 150px; padding: 28px 18px; grid-template-columns: 1fr auto; }
  .message-footer span { grid-column: 1 / -1; grid-row: 2; }
}