.page-contact {
  --contact-cut: 10px;
  background:
    radial-gradient(circle at 85% 8%, rgba(42, 157, 244, 0.09), transparent 34%),
    radial-gradient(circle at 12% 46%, rgba(244, 166, 20, 0.06), transparent 30%),
    radial-gradient(circle at 90% 70%, rgba(230, 57, 70, 0.05), transparent 26%),
    var(--bg-deep);
  color: var(--body);
  overflow: hidden;
}

/* ===================== Hero ===================== */
.contact-hero {
  padding: calc(var(--header-h) + 28px) 0 72px;
}

.contact-hero__frame {
  position: relative;
  background: var(--bg-panel);
  border: 1px solid var(--line-strong);
  box-shadow: 0 26px 60px rgba(0, 0, 0, 0.35);
}

.contact-hero__frame::after {
  content: "";
  display: block;
  height: 6px;
  background: linear-gradient(90deg, var(--red) 0 18%, var(--yellow) 18% 42%, var(--blue) 42% 72%, var(--green) 72% 100%);
  clip-path: polygon(0 0, 100% 0, calc(100% - 18px) 100%, 18px 100%);
}

.contact-hero__banner {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.contact-hero__banner img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 400px;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.06);
}

.contact-hero__meter {
  position: absolute;
  top: 16px;
  z-index: 2;
  padding: 6px 12px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--title);
  background: rgba(11, 14, 20, 0.74);
  backdrop-filter: blur(4px);
}

.contact-hero__meter--left {
  left: 0;
  border-left: 3px solid var(--yellow);
}

.contact-hero__meter--right {
  right: 0;
  border-right: 3px solid var(--red);
}

.contact-hero__body {
  position: relative;
  padding: 32px 20px 40px;
  background: linear-gradient(135deg, #161e2e 0%, #10141f 100%);
}

.contact-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.contact-hero__kicker {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.contact-hero__body h1 {
  margin: 0 0 16px;
  max-width: 760px;
  font-family: var(--font-head);
  font-size: clamp(28px, 5vw, 46px);
  line-height: 1.08;
  letter-spacing: 0.01em;
  color: var(--title);
}

.contact-hero__body > p {
  margin: 0 0 20px;
  max-width: 700px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--body);
}

.contact-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.contact-hero__meta-item {
  padding: 6px 11px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue);
}

/* ===================== 联系方式 ===================== */
.contact-channels {
  padding: 8px 0 76px;
}

.contact-channels__head {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 28px;
}

.contact-channels__kicker,
.contact-write__kicker {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--yellow);
}

.contact-channels__head h2,
.contact-write__head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.12;
  color: var(--title);
}

.contact-channels__stack {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.contact-channels__side {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.contact-channel {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 28px 22px 28px 28px;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  overflow: hidden;
}

.contact-channel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
}

.contact-channel--email::before {
  background: var(--red);
}

.contact-channel--phone::before {
  background: var(--yellow);
}

.contact-channel--address::before {
  background: var(--blue);
}

.contact-channel__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.contact-channel__label {
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.contact-channel__icon {
  flex-shrink: 0;
  color: var(--muted);
}

.contact-channel--email .contact-channel__icon {
  color: var(--red);
}

.contact-channel--phone .contact-channel__icon {
  color: var(--yellow);
}

.contact-channel--address .contact-channel__icon {
  color: var(--blue);
}

.contact-channel__value {
  display: inline-block;
  font-family: var(--font-data);
  font-size: clamp(15px, 2vw, 18px);
  line-height: 1.45;
  letter-spacing: 0.01em;
  color: var(--title);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  word-break: break-all;
  transition: border-color 0.2s var(--ease);
}

.contact-channel__value:hover {
  border-bottom-color: var(--yellow);
}

.contact-channel__value--text {
  border-bottom-color: transparent;
}

.contact-channel--email .contact-channel__value {
  font-size: clamp(17px, 2.6vw, 24px);
  color: #ffffff;
}

.contact-channel--phone .contact-channel__value {
  color: #ffffff;
}

.contact-channel__desc {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--muted);
}

.contact-channel__status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  padding: 6px 12px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--green);
  border: 1px solid rgba(0, 229, 160, 0.3);
}

.contact-channel__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(0, 229, 160, 0.15);
}

/* ===================== 客服响应承诺 ===================== */
.contact-promise {
  padding: 0 0 76px;
}

.contact-promise__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.contact-promise__left {
  position: relative;
  padding: 20px 0 8px;
}

.contact-promise__num {
  display: block;
  margin-right: 14px;
  font-family: var(--font-data);
  font-size: clamp(72px, 14vw, 140px);
  line-height: 0.86;
  letter-spacing: -0.05em;
  color: var(--title);
}

.contact-promise__unit {
  display: block;
  margin-top: 14px;
  font-family: var(--font-head);
  font-size: clamp(20px, 3vw, 28px);
  text-transform: uppercase;
  color: var(--yellow);
}

.contact-promise__desc {
  margin: 16px 0 0;
  max-width: 44ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--body);
}

.contact-promise__desc--sub {
  color: var(--muted);
  font-size: 13px;
}

.contact-promise__right h2 {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-size: clamp(20px, 2.6vw, 28px);
  line-height: 1.2;
  color: var(--title);
}

.contact-promise__right p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--body);
}

.contact-promise__right a {
  color: var(--yellow);
  text-decoration: none;
  border-bottom: 1px solid rgba(244, 166, 20, 0.4);
  transition: border-color 0.2s var(--ease);
}

.contact-promise__right a:hover {
  border-bottom-color: var(--yellow);
}

.contact-promise__list {
  display: grid;
  gap: 10px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.contact-promise__list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--body);
  background: var(--bg-elevated);
  border-left: 2px solid var(--line-strong);
}

/* ===================== 联系表单 ===================== */
.contact-write {
  padding: 0 0 80px;
}

.contact-write__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.contact-write__panel {
  position: relative;
  padding: clamp(20px, 3vw, 42px);
  background: var(--bg-panel);
  border: 1px solid var(--line);
}

.contact-write__head {
  margin-bottom: 24px;
}

.contact-write__head p {
  margin: 12px 0 0;
  max-width: 66ch;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

.contact-form {
  display: grid;
  gap: 18px;
}

.contact-form__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.contact-form__field {
  display: grid;
  gap: 8px;
}

.contact-form__label {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--body);
}

.contact-form__input {
  width: 100%;
  box-sizing: border-box;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  color: var(--title);
  background: linear-gradient(135deg, rgba(42, 157, 244, 0.06) 0%, rgba(11, 14, 20, 0) 26%), var(--bg-deep);
  border: 1px solid var(--line-strong);
  border-left: 4px solid var(--blue);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.contact-form__input:focus {
  outline: none;
  border-color: var(--yellow);
  border-left-color: var(--yellow);
  background: #0e1524;
}

.contact-form__input::placeholder {
  color: var(--muted);
}

.contact-form__input--area {
  min-height: 120px;
  resize: vertical;
}

.contact-form__actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 4px;
}

.contact-form__hint {
  font-size: 12px;
  line-height: 1.65;
  color: var(--muted);
}

.contact-write__aside {
  display: grid;
  gap: 16px;
}

.contact-write__imgwrap {
  position: relative;
  overflow: hidden;
  background: var(--bg-panel);
  border: 1px solid var(--line);
}

.contact-write__imgwrap img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.contact-write__note {
  padding: 20px;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-top: 3px solid var(--green);
}

.contact-write__note p {
  margin: 12px 0 14px;
  font-size: 13px;
  line-height: 1.72;
  color: var(--muted);
}

.contact-write__note a {
  font-size: 13px;
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(42, 157, 244, 0.4);
  transition: border-color 0.2s var(--ease);
}

.contact-write__note a:hover {
  border-bottom-color: var(--blue);
}

/* ===================== 相关支持 ===================== */
.contact-assist {
  padding: 0 0 80px;
}

.contact-assist__inner {
  display: grid;
  gap: 18px;
  padding: 34px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-left: 4px solid var(--blue);
  padding-left: 20px;
}

.contact-assist__kicker {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue);
}

.contact-assist h2 {
  margin: 8px 0 8px;
  font-family: var(--font-head);
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.15;
  color: var(--title);
}

.contact-assist p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

.contact-assist__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ===================== 底部斜切色带 ===================== */
.contact-stripe {
  display: grid;
  grid-template-columns: 1fr 1fr 1.2fr 0.8fr;
  height: 8px;
  margin-top: -8px;
  transform: skewY(-1.2deg) scale(1.02);
  pointer-events: none;
}

.contact-stripe__seg--red {
  background: var(--red);
}

.contact-stripe__seg--yellow {
  background: var(--yellow);
}

.contact-stripe__seg--blue {
  background: var(--blue);
}

.contact-stripe__seg--green {
  background: var(--green);
}

/* ===================== 中屏适配 ===================== */
@media (min-width: 640px) {
  .contact-channels__side {
    grid-template-columns: 1fr 1fr;
  }

  .contact-form__row {
    grid-template-columns: 1fr 1fr;
  }

  .contact-form__actions {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

/* ===================== 桌面适配 ===================== */
@media (min-width: 992px) {
  .contact-hero {
    padding-top: calc(var(--header-h) + 48px);
    padding-bottom: 96px;
  }

  .contact-hero__body {
    padding: 40px 48px 48px;
  }

  .contact-hero__body h1 {
    font-size: clamp(34px, 5vw, 52px);
  }

  .contact-channels__stack {
    grid-template-columns: 1.15fr 1fr;
    align-items: stretch;
  }

  .contact-channels__side {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr 1fr;
  }

  .contact-channel--email {
    padding: 36px 32px 36px 34px;
  }

  .contact-channel--email .contact-channel__value {
    font-size: clamp(20px, 2.2vw, 28px);
  }

  .contact-promise__grid {
    grid-template-columns: 0.72fr 1.28fr;
    gap: 48px;
    align-items: center;
  }

  .contact-write__layout {
    grid-template-columns: 1.4fr 0.6fr;
    align-items: start;
  }

  .contact-write__aside {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .contact-assist__inner {
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 24px;
    padding-left: 28px;
  }
}