.page-contact {
  --contact-panel: linear-gradient(168deg, rgba(14, 42, 71, 0.92) 0%, rgba(7, 26, 47, 0.96) 100%);
  --contact-focus-ring: 0 0 0 3px rgba(34, 211, 238, 0.22);
  --contact-row-gap: clamp(18px, 3vw, 30px);
}

.page-contact .breadcrumb {
  padding-top: clamp(20px, 3vw, 30px);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  padding: clamp(20px, 3vw, 32px) 0 clamp(40px, 6vw, 72px);
}

.page-contact .contact-hero-grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

@media (min-width: 900px) {
  .page-contact .contact-hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr);
    align-items: center;
  }
}

.page-contact .contact-hero-copy .display-xl {
  margin: 14px 0 0;
  font-weight: 200;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.page-contact .contact-lede {
  margin-top: 22px;
  max-width: 44ch;
  color: var(--slate);
  font-size: 17px;
  line-height: 1.78;
}

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

.page-contact .contact-hero-media {
  position: relative;
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-shell);
}

.page-contact .contact-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 26, 47, 0) 42%, rgba(5, 13, 22, 0.72) 100%);
  pointer-events: none;
}

.page-contact .contact-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 3;
  object-fit: cover;
}

/* ---------- 双栏工作区 ---------- */

.page-contact .contact-workbench {
  padding-top: 0;
}

.page-contact .contact-workbench-grid {
  display: grid;
  gap: clamp(28px, 4vw, 46px);
}

@media (min-width: 960px) {
  .page-contact .contact-workbench-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }
}

/* ---------- 左侧：三条通道 ---------- */

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

.page-contact .contact-channels > .index-label {
  margin: 0 0 4px;
}

.page-contact .channel-card {
  position: relative;
  padding: clamp(22px, 3vw, 30px);
  border-radius: var(--r-lg);
  background: var(--contact-panel);
  border: 1px solid var(--line);
  transition: border-color 260ms var(--ease), transform 260ms var(--ease), box-shadow 260ms var(--ease);
  scroll-margin-top: 140px;
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  border-color: rgba(255, 107, 74, 0.52);
  transform: translateY(-3px);
  box-shadow: 0 32px 60px -42px rgba(255, 107, 74, 0.55);
}

.page-contact .channel-card--coral {
  border-color: rgba(255, 107, 74, 0.34);
  background:
    radial-gradient(120% 130% at 100% 0%, rgba(255, 107, 74, 0.14), transparent 58%),
    var(--contact-panel);
}

.page-contact .channel-index {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.18em;
  color: var(--coral);
  font-variant-numeric: tabular-nums;
}

.page-contact .channel-card .title-md {
  margin: 0 0 12px;
  font-size: clamp(19px, 2.1vw, 22px);
  line-height: 1.35;
}

.page-contact .channel-desc {
  margin: 0;
  color: var(--slate);
  font-size: 15.5px;
  line-height: 1.74;
}

.page-contact .channel-desc--note {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 14.5px;
}

.page-contact .channel-meta {
  margin: 18px 0 0;
  display: grid;
  gap: 12px;
}

.page-contact .channel-meta dt {
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--slate);
}

.page-contact .channel-meta dd {
  margin: 4px 0 0;
  font-family: var(--font-mono);
  font-size: 14.5px;
  color: var(--paper);
  word-break: break-all;
}

.page-contact .channel-meta a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, 0.32);
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-contact .channel-meta a:hover {
  color: var(--cyan-soft);
  border-color: var(--cyan-soft);
}

.page-contact .channel-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .channel-list li {
  position: relative;
  padding-left: 17px;
  color: var(--paper);
  font-size: 15px;
  line-height: 1.62;
}

.page-contact .channel-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--coral);
}

.page-contact .channel-card .link-arrow {
  display: inline-block;
  margin-top: 20px;
}

/* ---------- 右侧：表单 ---------- */

.page-contact .contact-form-wrap {
  padding: clamp(24px, 3.6vw, 40px);
  border-radius: var(--r-lg);
  background:
    radial-gradient(130% 120% at 0% 0%, rgba(34, 211, 238, 0.10), transparent 56%),
    var(--contact-panel);
  border: 1px solid var(--line);
  scroll-margin-top: 140px;
}

.page-contact .contact-form-wrap .title-md {
  margin: 10px 0 0;
  font-size: clamp(20px, 2.2vw, 24px);
  line-height: 1.4;
}

.page-contact .form-lede {
  margin: 14px 0 0;
  color: var(--slate);
  font-size: 15.5px;
  line-height: 1.75;
  max-width: 54ch;
}

.page-contact .field-grid {
  margin-top: 28px;
  display: grid;
  gap: 16px;
}

@media (min-width: 620px) {
  .page-contact .field-grid {
    grid-template-columns: 1fr 1fr;
    column-gap: 18px;
  }

  .page-contact .field--full {
    grid-column: 1 / -1;
  }
}

.page-contact .field {
  display: block;
}

.page-contact .field-label {
  display: block;
  margin-bottom: 8px;
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--slate);
}

.page-contact .field-input {
  width: 100%;
  box-sizing: border-box;
  appearance: none;
  padding: 13px 16px;
  border-radius: var(--r-sm);
  background: rgba(5, 13, 22, 0.7);
  border: 1px solid var(--line);
  color: var(--paper);
  font-family: inherit;
  font-size: 15px;
  line-height: 1.5;
  transition: border-color 220ms var(--ease), box-shadow 220ms var(--ease), background 220ms var(--ease);
}

.page-contact .field-input::placeholder {
  color: rgba(143, 163, 184, 0.6);
}

.page-contact .field-input:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: var(--contact-focus-ring);
  background: rgba(7, 26, 47, 0.94);
}

.page-contact textarea.field-input {
  resize: vertical;
  min-height: 132px;
  line-height: 1.65;
}

.page-contact select.field-input {
  padding-right: 42px;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--cyan) 50%),
    linear-gradient(135deg, var(--cyan) 50%, transparent 50%);
  background-position: calc(100% - 21px) calc(50% + 1px), calc(100% - 15px) calc(50% + 1px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}

.page-contact .form-actions {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
}

.page-contact .form-note {
  color: var(--slate);
  font-size: 13.5px;
  line-height: 1.6;
}

/* ---------- 地址与备案 ---------- */

.page-contact .contact-address-section {
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-contact .contact-address-grid {
  position: relative;
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  padding: clamp(26px, 3.8vw, 46px);
  border-radius: var(--r-lg);
  overflow: hidden;
  background:
    radial-gradient(130% 130% at 100% 0%, rgba(34, 211, 238, 0.14), transparent 58%),
    linear-gradient(170deg, rgba(14, 42, 71, 0.94) 0%, rgba(5, 13, 22, 0.98) 100%);
  border: 1px solid var(--line);
}

@media (min-width: 880px) {
  .page-contact .contact-address-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.06fr);
    align-items: center;
  }
}

.page-contact .contact-address-grid::before {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 46%;
  background-image:
    linear-gradient(to right, rgba(125, 233, 247, 0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(125, 233, 247, 0.08) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: linear-gradient(to top, #000 34%, transparent 100%);
  mask-image: linear-gradient(to top, #000 34%, transparent 100%);
  pointer-events: none;
}

.page-contact .contact-address-media {
  position: relative;
  z-index: 1;
  margin: 0;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-shell);
}

.page-contact .contact-address-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  transition: transform 520ms var(--ease);
}

.page-contact .contact-address-media:hover img {
  transform: scale(1.035);
}

.page-contact .contact-address-body {
  position: relative;
  z-index: 1;
}

.page-contact .contact-address-body .display-lg {
  margin: 12px 0 0;
  font-weight: 200;
  line-height: 1.16;
  letter-spacing: -0.015em;
}

.page-contact .address-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
}

.page-contact .address-list li {
  display: grid;
  gap: 4px;
  padding: 14px 2px;
  border-bottom: 1px solid var(--line-soft);
  transition: border-color 220ms var(--ease), padding-left 220ms var(--ease);
}

.page-contact .address-list li:first-child {
  border-top: 1px solid var(--line-soft);
}

.page-contact .address-list li:hover {
  border-color: var(--line-strong);
  padding-left: 6px;
}

.page-contact .address-list span {
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--slate);
}

.page-contact .address-list strong {
  font-weight: 500;
  font-size: 15.5px;
  color: var(--paper);
  word-break: break-word;
}

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

.page-contact .address-note {
  margin: 22px 0 0;
  color: var(--slate);
  font-size: 14.5px;
  line-height: 1.78;
  max-width: 50ch;
}

.page-contact .address-note .link-arrow {
  color: var(--cyan);
  margin-top: 0;
}
<<<END>>>