/* ===== 联系页作用域变量与基础 ===== */
.page-contact {
  --contact-card-radius: 4px;
  --contact-card-bg: #ffffff;
  --contact-card-border: #e3eaf2;
  --contact-key: #00b56c;
  --contact-panel: #0e1a33;
  --contact-panel-deep: #0a1128;
  position: relative;
  background: var(--color-page);
  overflow: hidden;
}

/* ===== 分屏首屏 ===== */
.contact-hero {
  background:
    radial-gradient(circle at 84% 16%, rgba(0, 230, 138, 0.1), transparent 240px),
    linear-gradient(135deg, var(--color-night) 0%, #0e1a33 58%, var(--color-midnight) 100%);
  color: var(--color-foam);
  padding: calc(var(--header-height) + 48px) 0 64px;
  position: relative;
  overflow: hidden;
}

.contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-line) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.22;
  pointer-events: none;
}

.contact-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 40px;
  align-items: center;
}

.contact-hero__content {
  max-width: 640px;
}

.contact-hero .breadcrumb {
  margin-bottom: 28px;
  font-size: 0.85rem;
  color: var(--color-slate);
}

.contact-hero .breadcrumb a {
  color: var(--color-slate);
  text-decoration: none;
  transition: color 0.25s var(--ease);
}

.contact-hero .breadcrumb a:hover {
  color: var(--color-green);
}

.contact-hero .breadcrumb span[aria-current="page"] {
  color: var(--color-foam);
}

.contact-hero__label {
  margin-bottom: 12px;
}

.contact-hero h1 {
  font-size: clamp(1.75rem, 4.4vw, 2.9rem);
  line-height: 1.14;
  letter-spacing: -0.01em;
  font-weight: 900;
  margin: 0 0 18px;
  max-width: 14em;
}

.contact-hero__lead {
  color: var(--color-slate);
  font-size: 1rem;
  line-height: 1.85;
  margin: 0 0 28px;
  max-width: 44em;
}

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

.contact-hero .tag {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--color-line);
  color: var(--color-slate);
}

.contact-hero .tag--live {
  color: var(--color-green);
  border-color: rgba(0, 230, 138, 0.45);
  background: rgba(0, 230, 138, 0.1);
}

.contact-hero__visual {
  position: relative;
}

.contact-hero__visual-shell {
  position: relative;
}

.contact-hero__visual-ring {
  position: absolute;
  top: -22px;
  right: -18px;
  width: 120px;
  height: 120px;
  border: 1px solid rgba(0, 230, 138, 0.3);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

.contact-hero__visual-ring::after {
  content: "";
  position: absolute;
  top: 22px;
  left: 22px;
  width: 74px;
  height: 74px;
  border: 1px solid rgba(0, 230, 138, 0.16);
  border-radius: 50%;
}

.contact-hero__visual-shell img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
  border-radius: var(--contact-card-radius);
  border: 1px solid var(--color-line);
  filter: saturate(0.88) contrast(1.06);
}

.contact-hero__badge {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 2;
  background: rgba(10, 17, 40, 0.88);
  border: 1px solid rgba(0, 230, 138, 0.4);
  border-radius: var(--contact-card-radius);
  padding: 14px 16px;
  display: grid;
  gap: 4px;
  backdrop-filter: blur(6px);
}

.contact-hero__badge-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-green);
  font-family: var(--font-mono);
}

.contact-hero__badge-value {
  font-size: 0.92rem;
  color: var(--color-foam);
  line-height: 1.5;
  word-break: keep-all;
}

/* ===== 联系渠道区 ===== */
.contact-channels {
  background: var(--color-page);
  padding: 72px 0;
}

.contact-channels__header {
  display: grid;
  gap: 12px;
  margin-bottom: 40px;
}

.contact-channels__header h2,
.contact-message h2,
.contact-guide h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 800;
  color: var(--color-ink);
  margin: 0;
}

.contact-channels__intro {
  color: var(--color-slate);
  line-height: 1.75;
  max-width: 40em;
  margin: 0;
}

.contact-channels .section-label,
.contact-message .section-label,
.contact-guide .section-label {
  color: var(--contact-key);
}

.contact-channels__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.contact-card {
  background: var(--contact-card-bg);
  border: 1px solid var(--contact-card-border);
  border-left: 3px solid var(--color-green);
  border-radius: var(--contact-card-radius);
  padding: 24px;
  display: grid;
  gap: 12px;
  align-content: start;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(10, 17, 40, 0.09);
}

.contact-card--phone {
  border-left-color: var(--color-orange);
}

.contact-card--address {
  border-left-color: var(--color-line);
}

.contact-card--note {
  background: var(--color-night);
  color: var(--color-foam);
  border: 1px solid var(--color-line);
  border-left: 3px solid var(--color-orange);
}

.contact-card--note:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(10, 17, 40, 0.18);
}

.contact-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.contact-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--color-night);
  color: var(--color-green);
  flex-shrink: 0;
}

.contact-card--phone .contact-card__icon {
  color: var(--color-orange);
}

.contact-card__index {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-slate);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.contact-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-ink);
  margin: 0;
}

.contact-card p {
  color: var(--color-slate);
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 0;
}

.contact-card--note p {
  color: var(--color-slate);
}

.contact-card__value {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-ink);
  word-break: keep-all;
}

.contact-card__value--address {
  font-family: var(--font-sans);
}

.contact-card__value--link {
  font-family: var(--font-mono);
  font-size: clamp(0.95rem, 1.8vw, 1.1rem);
  font-weight: 500;
  text-decoration: none;
  border-bottom: 2px solid var(--color-green);
  padding-bottom: 2px;
  display: inline-block;
  width: fit-content;
  transition: background-color 0.22s var(--ease), color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.contact-card__value--link:hover {
  background: var(--color-night);
  color: var(--color-foam);
  border-color: var(--color-orange);
  border-radius: 2px;
  padding: 2px 6px;
  margin: -2px -6px;
}

.contact-card__hint {
  font-size: 0.8rem;
  color: var(--color-slate);
}

.contact-card__note-big {
  font-size: clamp(1.8rem, 4vw, 2.4rem) !important;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-green) !important;
  margin: 0 !important;
  line-height: 1.1;
}

/* ===== 商务合作与数据校正 ===== */
.contact-work {
  background: var(--color-night);
  color: var(--color-foam);
  padding: 80px 0;
  position: relative;
}

.contact-work::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(255, 158, 28, 0.08), transparent 70%);
  pointer-events: none;
}

.contact-work__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 24px;
}

.contact-work__panel {
  background: var(--color-midnight);
  border: 1px solid var(--color-line);
  border-top: 3px solid var(--color-green);
  border-radius: var(--contact-card-radius);
  padding: 28px 24px;
  display: grid;
  gap: 16px;
  align-content: start;
}

.contact-work__panel--fix {
  border-top-color: var(--color-orange);
}

.contact-work__panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.contact-work__digit {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-green);
  border: 1px solid var(--color-line);
  border-radius: 2px;
  padding: 4px 8px;
  letter-spacing: 0.06em;
}

.contact-work__panel--fix .contact-work__digit {
  color: var(--color-orange);
}

.contact-work__panel .section-label {
  margin: 0;
}

.contact-work__panel h2 {
  font-size: clamp(1.4rem, 2.8vw, 1.9rem);
  font-weight: 800;
  color: var(--color-foam);
  margin: 0;
}

.contact-work__panel p {
  color: var(--color-slate);
  line-height: 1.75;
  font-size: 0.94rem;
  margin: 0;
}

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

.contact-work__list li {
  position: relative;
  padding-left: 20px;
  color: var(--color-foam);
  line-height: 1.6;
  font-size: 0.92rem;
}

.contact-work__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 8px;
  background: var(--color-green);
  border-radius: 1px;
  transform: rotate(45deg);
}

.contact-work__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: work-step;
  display: grid;
  gap: 10px;
}

.contact-work__steps li {
  counter-increment: work-step;
  position: relative;
  padding-left: 34px;
  color: var(--color-foam);
  line-height: 1.6;
  font-size: 0.92rem;
}

.contact-work__steps li::before {
  content: counter(work-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.2em;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--color-orange);
  border: 1px solid var(--color-line);
  border-radius: 2px;
  padding: 2px 4px;
  line-height: 1.4;
}

.contact-work__note {
  font-size: 0.82rem !important;
  color: var(--color-slate) !important;
  border-left: 2px solid var(--color-line);
  padding-left: 12px;
}

.contact-work .btn {
  justify-self: start;
  margin-top: 4px;
}

/* ===== 快捷留言表单 ===== */
.contact-message {
  background: var(--color-page);
  padding: 76px 0;
}

.contact-message__inner {
  display: grid;
  gap: 40px;
  align-items: start;
}

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

.contact-message__visual-frame {
  background: var(--color-night);
  border: 1px solid var(--color-line);
  border-radius: var(--contact-card-radius);
  padding: 16px;
  position: relative;
  overflow: hidden;
}

.contact-message__visual-frame::after {
  content: "";
  position: absolute;
  top: -40px;
  right: -40px;
  width: 90px;
  height: 90px;
  background: radial-gradient(circle, rgba(0, 230, 138, 0.18), transparent 70%);
  pointer-events: none;
}

.contact-message__visual-frame img {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
  border-radius: calc(var(--contact-card-radius) - 2px);
  filter: saturate(0.9) contrast(1.05);
}

.contact-message__note-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.contact-message__note-grid span {
  background: var(--color-night);
  color: var(--color-foam);
  font-size: 0.78rem;
  font-family: var(--font-mono);
  padding: 10px 12px;
  border-radius: var(--contact-card-radius);
  border: 1px solid var(--color-line);
  text-align: center;
}

.contact-message__note-grid span:first-child {
  color: var(--color-green);
  border-color: rgba(0, 230, 138, 0.35);
}

.contact-message__content h2 {
  margin-bottom: 12px;
}

.contact-message__content > p {
  color: var(--color-slate);
  line-height: 1.75;
  margin: 0 0 24px;
  font-size: 0.94rem;
}

.contact-message__form {
  background: var(--contact-card-bg);
  border: 1px solid var(--contact-card-border);
  border-radius: var(--contact-card-radius);
  padding: 24px;
  display: grid;
  gap: 18px;
  box-shadow: 0 4px 20px rgba(10, 17, 40, 0.05);
}

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

.contact-message__field {
  display: grid;
  gap: 6px;
}

.contact-message__field label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-ink);
}

.contact-message__field input,
.contact-message__field select {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  border: 1px solid #d4dce8;
  border-radius: var(--contact-card-radius);
  padding: 10px 12px;
  background: #fbfcfe;
  color: var(--color-ink);
  width: 100%;
  box-sizing: border-box;
  transition: border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.contact-message__field textarea {
  font-family: var(--font-sans);
  font-size: 0.92rem;
  border: 1px solid #d4dce8;
  border-radius: var(--contact-card-radius);
  padding: 10px 12px;
  background: #fbfcfe;
  color: var(--color-ink);
  width: 100%;
  box-sizing: border-box;
  resize: vertical;
  min-height: 110px;
  transition: border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.contact-message__field input:focus,
.contact-message__field select:focus,
.contact-message__field textarea:focus {
  outline: none;
  border-color: var(--color-green);
  box-shadow: 0 0 0 3px rgba(0, 230, 138, 0.14);
}

.contact-message__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}

.contact-message__tip {
  font-size: 0.78rem;
  color: var(--color-slate) !important;
  margin: 0 !important;
  font-family: var(--font-mono);
}

/* ===== 响应时间承诺 ===== */
.contact-promise {
  background:
    linear-gradient(160deg, var(--color-night) 0%, var(--color-midnight) 100%);
  color: var(--color-foam);
  padding: 76px 0;
  position: relative;
  overflow: hidden;
}

.contact-promise::before {
  content: "";
  position: absolute;
  left: -40px;
  bottom: -60px;
  width: 220px;
  height: 220px;
  border: 1px solid rgba(0, 230, 138, 0.16);
  border-radius: 50%;
}

.contact-promise::after {
  content: "";
  position: absolute;
  left: -10px;
  bottom: -30px;
  width: 160px;
  height: 160px;
  border: 1px solid rgba(0, 230, 138, 0.12);
  border-radius: 50%;
}

.contact-promise__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 24px;
  align-items: center;
}

.contact-promise__big {
  font-size: clamp(2rem, 6vw, 3.4rem);
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-green);
  margin: 0;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.contact-promise__copy h2 {
  font-size: clamp(1.3rem, 2.6vw, 1.8rem);
  font-weight: 800;
  color: var(--color-foam);
  margin: 0 0 10px;
}

.contact-promise__copy p {
  color: var(--color-slate);
  line-height: 1.75;
  font-size: 0.94rem;
  margin: 0;
  max-width: 42em;
}

/* ===== 常见需求指引 ===== */
.contact-guide {
  background: var(--color-page);
  padding: 76px 0 64px;
}

.contact-guide__header {
  display: grid;
  gap: 12px;
  margin-bottom: 32px;
}

.contact-guide__header p:last-child {
  color: var(--color-slate);
  line-height: 1.75;
  margin: 0;
  max-width: 40em;
}

.contact-guide__list {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.contact-guide__item a {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  background: var(--contact-card-bg);
  border: 1px solid var(--contact-card-border);
  border-radius: var(--contact-card-radius);
  padding: 20px;
  text-decoration: none;
  color: var(--color-ink);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.contact-guide__item a:hover {
  border-color: var(--color-green);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(10, 17, 40, 0.08);
}

.contact-guide__num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-green);
  border: 1px solid #d4dce8;
  border-radius: 2px;
  padding: 4px 6px;
  flex-shrink: 0;
  line-height: 1.3;
}

.contact-guide__body {
  display: grid;
  gap: 4px;
}

.contact-guide__body strong {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--color-ink);
}

.contact-guide__body span {
  font-size: 0.85rem;
  color: var(--color-slate);
  line-height: 1.6;
}

.contact-guide__footer {
  color: var(--color-slate);
  font-size: 0.85rem;
  line-height: 1.7;
  margin: 0;
}

.contact-guide__footer a {
  color: var(--color-ink);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-decoration-color: var(--color-green);
  text-underline-offset: 3px;
  transition: color 0.22s var(--ease);
}

.contact-guide__footer a:hover {
  color: var(--contact-key);
}

/* ===== 媒体查询：≥720px ===== */
@media (min-width: 720px) {
  .contact-message__row {
    grid-template-columns: 1fr 1fr;
  }

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

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

/* ===== 媒体查询：≥900px ===== */
@media (min-width: 900px) {
  .contact-hero__inner {
    grid-template-columns: 7fr 5fr;
    gap: 64px;
  }

  .contact-hero {
    padding: calc(var(--header-height) + 56px) 0 76px;
  }

  .contact-channels {
    padding: 88px 0;
  }

  .contact-channels__header {
    grid-template-columns: 5fr 7fr;
    align-items: end;
    gap: 40px;
  }

  .contact-channels__grid {
    grid-template-columns: repeat(12, 1fr);
    gap: 24px;
  }

  .contact-card--mail {
    grid-column: span 6;
  }

  .contact-card--phone {
    grid-column: span 6;
  }

  .contact-card--address {
    grid-column: span 7;
  }

  .contact-card--note {
    grid-column: span 5;
  }

  .contact-work {
    padding: 96px 0;
  }

  .contact-work__inner {
    grid-template-columns: 5fr 7fr;
    gap: 32px;
  }

  .contact-work__panel {
    padding: 36px 32px;
  }

  .contact-message {
    padding: 96px 0;
  }

  .contact-message__inner {
    grid-template-columns: 4fr 8fr;
    gap: 56px;
  }

  .contact-message__visual {
    position: sticky;
    top: calc(var(--header-height) + 32px);
  }

  .contact-promise {
    padding: 96px 0;
  }

  .contact-promise__inner {
    grid-template-columns: 5fr 7fr;
    gap: 48px;
  }

  .contact-guide {
    padding: 96px 0 80px;
  }

  .contact-guide__header {
    grid-template-columns: 5fr 7fr;
    align-items: end;
    gap: 40px;
  }
}

/* ===== 媒体查询：≥1200px ===== */
@media (min-width: 1200px) {
  .contact-guide__list {
    grid-template-columns: repeat(3, 1fr);
  }

  .contact-card--mail {
    grid-column: span 7;
  }

  .contact-card--phone {
    grid-column: span 5;
  }

  .contact-card--address {
    grid-column: span 7;
  }

  .contact-card--note {
    grid-column: span 5;
  }
}