:root {
  --zstc-primary: #f15a24;
  --zstc-primary-dark: #a93614;
  --zstc-primary-soft: #fff0e9;
  --zstc-accent: #ffb04a;
  --zstc-ink: #1a1a1a;
  --zstc-muted: #777;
  --zstc-line: #e8eaef;
  --zstc-surface: #f5f7fa;
}

.zstc-contact,
.zstc-contact * {
  box-sizing: border-box;
}

.zstc-contact {
  width: 100%;
  overflow: hidden;
  color: var(--zstc-ink);
  background: var(--zstc-surface);
  font-family: "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, sans-serif;
}

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

.zstc-contact__hero {
  position: relative;
  min-height: 470px;
  display: flex;
  align-items: center;
  isolation: isolate;
  color: #fff;
  background:
    linear-gradient(108deg, rgba(89, 26, 8, .99) 0%, rgba(177, 53, 18, .97) 58%, rgba(237, 90, 42, .94) 100%);
}

.zstc-contact__hero::before,
.zstc-contact__hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  pointer-events: none;
}

.zstc-contact__hero::before {
  width: 560px;
  height: 560px;
  right: -80px;
  top: -190px;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 50%;
  box-shadow:
    0 0 0 72px rgba(255, 255, 255, .035),
    0 0 0 145px rgba(255, 255, 255, .025);
}

.zstc-contact__hero::after {
  width: 330px;
  height: 12px;
  right: 7%;
  bottom: 74px;
  border-radius: 20px;
  background: var(--zstc-accent);
  transform: rotate(-32deg);
  box-shadow: 90px -60px 0 rgba(255, 255, 255, .12);
}

.zstc-contact__hero-inner,
.zstc-contact__shell {
  width: min(1180px, calc(100% - 44px));
  margin: 0 auto;
}

.zstc-contact__hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, .8fr);
  align-items: center;
  gap: 90px;
  padding: 82px 0 115px;
}

.zstc-contact__hero-copy {
  max-width: 740px;
}

.zstc-contact__brand-lockup {
  display: flex;
  align-items: center;
  gap: 17px;
  margin-bottom: 34px;
}

.zstc-contact__brand-logo {
  width: 62px;
  height: 70px;
  display: block;
  object-fit: contain;
  padding: 5px;
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 14px 35px rgba(71, 18, 5, .28);
}

.zstc-contact__brand-lockup > span {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.zstc-contact__brand-lockup strong {
  color: #fff;
  font-size: 24px;
  letter-spacing: .08em;
}

.zstc-contact__brand-lockup small {
  color: rgba(255, 255, 255, .65);
  font-family: Arial, sans-serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .12em;
}

.zstc-contact__eyebrow,
.zstc-contact__section-heading > p,
.zstc-contact__form-heading > p {
  margin: 0 0 18px;
  color: #ffd0bc;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .2em;
}

.zstc-contact__eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
}

.zstc-contact__eyebrow > span {
  width: 28px;
  height: 2px;
  background: var(--zstc-accent);
}

.zstc-contact__hero h1 {
  margin: 0;
  font-size: clamp(48px, 6.2vw, 88px);
  font-weight: 700;
  letter-spacing: -.055em;
  line-height: 1.05;
}

.zstc-contact__lead {
  max-width: 700px;
  margin: 26px 0 0;
  color: rgba(255, 255, 255, .78);
  font-size: clamp(17px, 1.4vw, 21px);
  line-height: 1.85;
}

.zstc-contact__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.zstc-contact__button {
  min-width: 142px;
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 25px;
  border: 1px solid rgba(255, 255, 255, .3);
  font-size: 15px;
  font-weight: 700;
  transition: transform .2s ease, background-color .2s ease, border-color .2s ease;
}

.zstc-contact__button:hover {
  transform: translateY(-2px);
}

.zstc-contact__button--primary {
  border-color: var(--zstc-primary);
  background: var(--zstc-primary);
}

.zstc-contact__button--primary:hover {
  background: var(--zstc-primary-dark);
  border-color: var(--zstc-primary-dark);
}

.zstc-contact__button--ghost:hover {
  background: rgba(255, 255, 255, .09);
}

.zstc-contact__signal-card {
  position: relative;
  min-height: 265px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 45px 48px;
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 10px;
  background: rgba(255, 255, 255, .07);
  backdrop-filter: blur(10px);
}

.zstc-contact__signal-card::before {
  content: "ZS";
  position: absolute;
  right: 28px;
  top: 12px;
  color: rgba(255, 255, 255, .07);
  font-size: 95px;
  font-weight: 900;
  letter-spacing: -.08em;
}

.zstc-contact__signal-card::after {
  content: "";
  position: absolute;
  left: 0;
  top: 38px;
  bottom: 38px;
  width: 4px;
  background: var(--zstc-accent);
}

.zstc-contact__signal-label {
  margin-bottom: 17px;
  color: #ffd0bc;
  font-size: 13px;
}

.zstc-contact__signal-card strong {
  position: relative;
  font-size: 34px;
  letter-spacing: .12em;
}

.zstc-contact__signal-card > span:not(.zstc-contact__signal-label) {
  margin-top: 8px;
  color: rgba(255, 255, 255, .7);
  font-size: 15px;
}

.zstc-contact__signal-card > a {
  margin-top: 27px;
  font-family: Arial, sans-serif;
  font-size: 23px;
  font-weight: 700;
  letter-spacing: .04em;
}

.zstc-contact__signal-card > i {
  position: absolute;
  right: 32px;
  bottom: 28px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #ffba77;
  box-shadow: 0 0 0 7px rgba(255, 186, 119, .16);
}

.zstc-contact__shell {
  position: relative;
  z-index: 2;
  padding-bottom: 110px;
}

.zstc-contact__quick-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: -56px;
  overflow: hidden;
  border-radius: 10px;
  background: var(--zstc-line);
  box-shadow: 0 24px 60px rgba(104, 42, 18, .14);
}

.zstc-contact__quick-card {
  min-width: 0;
  min-height: 145px;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 30px 28px;
  background: #fff;
  transition: transform .2s ease, background-color .2s ease;
}

a.zstc-contact__quick-card:hover {
  z-index: 1;
  background: var(--zstc-primary-soft);
  transform: translateY(-4px);
}

.zstc-contact__quick-icon {
  flex: 0 0 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--zstc-primary);
  background: var(--zstc-primary-soft);
  font-family: Arial, sans-serif;
  font-size: 12px;
  font-weight: 800;
}

.zstc-contact__quick-card > span:last-child {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.zstc-contact__quick-card small {
  margin-bottom: 7px;
  color: var(--zstc-muted);
  font-size: 12px;
}

.zstc-contact__quick-card strong {
  overflow-wrap: anywhere;
  font-family: Arial, "Microsoft YaHei", sans-serif;
  font-size: 17px;
  line-height: 1.35;
}

.zstc-contact__quick-card em {
  margin-top: 5px;
  color: #89948e;
  font-size: 12px;
  font-style: normal;
}

.zstc-contact__content {
  display: grid;
  grid-template-columns: minmax(330px, .82fr) minmax(530px, 1.18fr);
  gap: clamp(50px, 6vw, 95px);
  padding-top: 105px;
}

.zstc-contact__details {
  align-self: start;
  padding: clamp(30px, 4vw, 46px);
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 2px 14px rgba(0, 0, 0, .06);
}

.zstc-contact__section-heading > p,
.zstc-contact__form-heading > p {
  color: var(--zstc-primary);
}

.zstc-contact__section-heading h2,
.zstc-contact__form-heading h2 {
  margin: 0;
  color: var(--zstc-ink);
  font-size: clamp(27px, 2.6vw, 38px);
  line-height: 1.3;
}

.zstc-contact__section-heading > span,
.zstc-contact__form-heading > span {
  display: block;
  margin-top: 17px;
  color: var(--zstc-muted);
  font-size: 15px;
  line-height: 1.8;
}

.zstc-contact__person {
  display: flex;
  align-items: center;
  gap: 20px;
  margin: 38px 0 0;
  padding: 24px 0;
  border-top: 1px solid var(--zstc-line);
  border-bottom: 1px solid var(--zstc-line);
}

.zstc-contact__avatar {
  flex: 0 0 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--zstc-primary);
  font-size: 22px;
  font-weight: 700;
}

.zstc-contact__person small {
  display: block;
  color: var(--zstc-muted);
  font-size: 12px;
}

.zstc-contact__person strong {
  display: inline-block;
  margin-top: 3px;
  font-size: 21px;
}

.zstc-contact__person p {
  display: inline-block;
  margin: 0 0 0 9px;
  color: var(--zstc-muted);
  font-size: 13px;
}

.zstc-contact__company-list {
  margin: 12px 0 0;
}

.zstc-contact__company-list > div {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 18px;
  padding: 19px 0;
  border-bottom: 1px solid var(--zstc-line);
}

.zstc-contact__company-list dt {
  color: var(--zstc-muted);
  font-size: 13px;
}

.zstc-contact__company-list dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
}

.zstc-contact__company-list a {
  color: var(--zstc-primary);
  font-family: Arial, sans-serif;
  font-weight: 700;
}

.zstc-contact__address-actions {
  margin-top: 25px;
}

.zstc-contact__address-actions a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--zstc-primary);
  font-size: 14px;
  font-weight: 700;
}

.zstc-contact__address-actions span {
  color: var(--zstc-accent);
  font-size: 18px;
}

.zstc-contact__form-card {
  padding: clamp(30px, 4vw, 54px);
  background: #fff;
  border-top: 4px solid var(--zstc-primary);
  border-radius: 10px;
  box-shadow: 0 2px 14px rgba(0, 0, 0, .06);
}

.zstc-contact__form {
  margin-top: 31px;
}

.zstc-contact__form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 21px 18px;
}

.zstc-contact__form label {
  display: block;
}

.zstc-contact__form label > span {
  display: block;
  margin-bottom: 9px;
  color: #425048;
  font-size: 13px;
  font-weight: 600;
}

.zstc-contact__form label b {
  color: var(--zstc-primary);
}

.zstc-contact__field--wide {
  grid-column: 1 / -1;
}

.zstc-contact__form input:not([type="checkbox"]),
.zstc-contact__form select,
.zstc-contact__form textarea {
  width: 100%;
  border: 1px solid #d5dfd8;
  border-radius: 0;
  outline: 0;
  color: var(--zstc-ink);
  background: #fff;
  font: inherit;
  font-size: 14px;
  transition: border-color .2s ease, box-shadow .2s ease;
}

.zstc-contact__form input:not([type="checkbox"]),
.zstc-contact__form select {
  height: 50px;
  padding: 0 15px;
}

.zstc-contact__form textarea {
  min-height: 132px;
  padding: 14px 15px;
  resize: vertical;
  line-height: 1.7;
}

.zstc-contact__form input:focus,
.zstc-contact__form select:focus,
.zstc-contact__form textarea:focus {
  border-color: var(--zstc-primary);
  box-shadow: 0 0 0 3px rgba(237, 90, 42, .12);
}

.zstc-contact__form input::placeholder,
.zstc-contact__form textarea::placeholder {
  color: #a1aaa5;
}

.zstc-contact__honeypot {
  position: absolute !important;
  left: -10000px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
}

.zstc-contact__consent {
  display: flex !important;
  align-items: flex-start;
  gap: 9px;
  margin-top: 21px;
  cursor: pointer;
}

.zstc-contact__consent input {
  flex: 0 0 auto;
  margin: 3px 0 0;
  accent-color: var(--zstc-primary);
}

.zstc-contact__consent span {
  margin: 0 !important;
  color: var(--zstc-muted) !important;
  font-size: 12px !important;
  font-weight: 400 !important;
  line-height: 1.6;
}

.zstc-contact__form-footer {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 20px;
  margin-top: 26px;
}

.zstc-contact__form-footer button {
  min-width: 154px;
  height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 20px;
  border: 0;
  color: #fff;
  background: var(--zstc-primary);
  cursor: pointer;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  transition: background-color .2s ease, transform .2s ease;
}

.zstc-contact__form-footer button:hover {
  background: var(--zstc-primary-dark);
  transform: translateY(-2px);
}

.zstc-contact__form-footer button:disabled {
  opacity: .65;
  cursor: wait;
  transform: none;
}

.zstc-contact__form-footer button i {
  color: #ffd4c2;
  font-size: 20px;
  font-style: normal;
}

.zstc-contact__status {
  margin: 0;
  color: var(--zstc-muted);
  font-size: 13px;
  line-height: 1.6;
}

.zstc-contact__status[data-state="success"] {
  color: var(--zstc-primary);
}

.zstc-contact__status[data-state="error"] {
  color: #b53d1b;
}

@media (max-width: 1120px) {
  .zstc-contact__quick-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .zstc-contact__content {
    grid-template-columns: 1fr 1.2fr;
    gap: 46px;
  }
}

@media (max-width: 820px) {
  .zstc-contact__hero {
    min-height: auto;
  }

  .zstc-contact__hero-inner,
  .zstc-contact__shell {
    width: min(100% - 36px, 680px);
  }

  .zstc-contact__hero-inner {
    grid-template-columns: 1fr;
    gap: 38px;
    padding: 72px 0 108px;
  }

  .zstc-contact__signal-card {
    min-height: 220px;
  }

  .zstc-contact__content {
    grid-template-columns: 1fr;
    gap: 60px;
    padding-top: 80px;
  }

  .zstc-contact__quick-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: -44px;
  }
}

@media (max-width: 560px) {
  .zstc-contact__hero-inner,
  .zstc-contact__shell {
    width: min(100% - 28px, 520px);
  }

  .zstc-contact__hero-inner {
    padding: 58px 0 92px;
  }

  .zstc-contact__hero h1 {
    font-size: 46px;
  }

  .zstc-contact__brand-lockup {
    margin-bottom: 28px;
  }

  .zstc-contact__brand-logo {
    width: 55px;
    height: 62px;
  }

  .zstc-contact__brand-lockup strong {
    font-size: 21px;
  }

  .zstc-contact__lead {
    font-size: 16px;
    line-height: 1.75;
  }

  .zstc-contact__signal-card {
    padding: 36px 30px;
  }

  .zstc-contact__quick-grid {
    grid-template-columns: 1fr;
  }

  .zstc-contact__quick-card,
  .zstc-contact__quick-card:nth-child(2) {
    min-height: 118px;
  }

  .zstc-contact__content {
    padding-top: 66px;
  }

  .zstc-contact__person p {
    display: block;
    margin: 4px 0 0;
  }

  .zstc-contact__company-list > div {
    grid-template-columns: 1fr;
    gap: 7px;
  }

  .zstc-contact__form-card {
    margin-right: -14px;
    margin-left: -14px;
    padding: 30px 22px;
  }

  .zstc-contact__form-grid {
    grid-template-columns: 1fr;
  }

  .zstc-contact__field--wide {
    grid-column: auto;
  }

  .zstc-contact__form-footer {
    grid-template-columns: 1fr;
  }

  .zstc-contact__form-footer button {
    width: 100%;
  }

}

@media (prefers-reduced-motion: reduce) {
  .zstc-contact *,
  .zstc-contact *::before,
  .zstc-contact *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
}