.page-contact {
  --contact-line: rgba(168, 85, 247, 0.28);
  --contact-soft: rgba(26, 43, 77, 0.72);
  --contact-glow: rgba(255, 107, 53, 0.16);
  --contact-deep: rgba(9, 9, 11, 0.5);
  position: relative;
  overflow: hidden;
}

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

/* ===== 首屏标题区 ===== */
.page-contact__head {
  padding-top: clamp(2.25rem, 5vw, 4rem);
  padding-bottom: var(--section-space);
  background:
    radial-gradient(ellipse at 78% 22%, rgba(168, 85, 247, 0.22) 0%, transparent 46%),
    radial-gradient(ellipse at 12% 80%, rgba(255, 107, 53, 0.14) 0%, transparent 52%),
    linear-gradient(160deg, var(--color-space) 0%, var(--color-nebula) 68%, rgba(26, 43, 77, 0.4) 100%);
  position: relative;
}

.page-contact__head::before {
  content: "";
  position: absolute;
  top: 12%;
  right: -5%;
  width: 280px;
  height: 280px;
  border: 1px solid rgba(168, 85, 247, 0.16);
  border-radius: 50%;
}

.page-contact__head::after {
  content: "";
  position: absolute;
  width: 220px;
  height: 1.5px;
  background: linear-gradient(90deg, transparent, var(--color-orange) 30%, var(--color-purple) 82%, transparent);
  transform: rotate(-16deg);
  top: 42%;
  right: 14%;
}

.page-contact__head-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  align-items: end;
  margin-top: 2.25rem;
}

.page-contact__head-copy h1 {
  margin: 0.85rem 0 0.6rem;
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4.6vw, 3.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-meteor);
}

.page-contact__head-lead {
  max-width: 36rem;
  font-size: clamp(0.95rem, 1.4vw, 1.05rem);
  line-height: 1.7;
  color: var(--color-starlight);
}

.page-contact__head-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--contact-line);
  border-radius: 1rem;
  background: var(--contact-deep);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-starlight);
}

.page-contact__meta-coord {
  letter-spacing: 0.08em;
  color: rgba(203, 213, 225, 0.7);
}

.page-contact__meta-status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.page-contact__meta-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.16);
}

/* ===== 联系信息区域 ===== */
.page-contact__channels {
  background: var(--color-space);
  padding-bottom: var(--section-space);
}

.page-contact__channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.page-contact__channel-card {
  position: relative;
  background: var(--contact-soft);
  border: 1px solid var(--contact-line);
  border-radius: 1.25rem;
  padding: 2rem 1.4rem 1.5rem;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.page-contact__channel-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-orange), var(--color-purple));
  opacity: 0.72;
}

.page-contact__channel-card:hover {
  transform: translateY(-4px);
  border-color: rgba(168, 85, 247, 0.45);
  box-shadow: 0 18px 36px -18px rgba(9, 9, 11, 0.85);
}

.page-contact__channel-index {
  position: absolute;
  top: 1.55rem;
  right: 1.4rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  color: rgba(203, 213, 225, 0.45);
}

.page-contact__channel-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 1.1rem;
  border-radius: 0.9rem;
  background: rgba(168, 85, 247, 0.14);
  color: var(--color-purple);
  border: 1px solid rgba(168, 85, 247, 0.24);
}

.page-contact__channel-card h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-meteor);
}

.page-contact__channel-text {
  margin: 0 0 0.85rem;
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--color-starlight);
}

.page-contact__channel-value {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--color-meteor);
  text-decoration: none;
  border-bottom: 1px dashed rgba(255, 107, 53, 0.55);
  padding-bottom: 2px;
  word-break: break-all;
  transition: color 0.25s ease, border-color 0.25s ease;
}

.page-contact__channel-value:hover {
  color: var(--color-orange);
  border-color: var(--color-orange);
}

a.page-contact__channel-value {
  cursor: pointer;
}

.page-contact__channel-address {
  border-bottom-style: solid;
  border-bottom-color: rgba(203, 213, 225, 0.35);
}

.page-contact__channel-map {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
  padding: 1rem;
  border: 1px solid rgba(168, 85, 247, 0.2);
  border-radius: 1.25rem;
  background: var(--contact-deep);
}

.page-contact__map-img,
.page-contact__visual-img {
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: 0.9rem;
  display: block;
}

.page-contact__channel-map-copy {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 0.25rem 0.2rem;
}

.page-contact__channel-map-copy p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--color-starlight);
}

/* ===== 表单与视觉区 ===== */
.page-contact__message {
  background:
    radial-gradient(ellipse at 15% 20%, rgba(26, 43, 77, 0.86) 0%, transparent 52%),
    var(--color-space);
  padding-bottom: var(--section-space);
}

.page-contact__message-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

.page-contact__form-card {
  background: var(--contact-soft);
  border: 1px solid var(--contact-line);
  border-radius: 1.5rem;
  padding: clamp(1.5rem, 3vw, 2.25rem);
}

.section-heading--compact {
  margin-bottom: 1.75rem;
}

.page-contact__form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.15rem;
}

.page-contact__form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.4rem;
}

.page-contact__label {
  font-size: 0.84rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-meteor);
}

.page-contact__input,
.page-contact__textarea {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid rgba(203, 213, 225, 0.24);
  border-radius: 0.75rem;
  background: rgba(9, 9, 11, 0.42);
  color: var(--color-meteor);
  font-family: var(--font-body);
  font-size: 0.92rem;
  line-height: 1.5;
  padding: 0.75rem 0.9rem;
}

.page-contact__input:focus,
.page-contact__textarea:focus {
  outline: none;
  border-color: var(--color-purple);
  box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.18);
}

.page-contact__input::placeholder,
.page-contact__textarea::placeholder {
  color: rgba(203, 213, 225, 0.45);
}

.page-contact__textarea {
  resize: vertical;
  min-height: 8rem;
}

.page-contact__form-hint {
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.5;
  color: rgba(203, 213, 225, 0.68);
}

.page-contact__form-card .button-primary {
  justify-self: start;
}

.page-contact__form-visual {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.page-contact__visual-frame {
  position: relative;
  border-radius: 1.25rem;
  overflow: hidden;
  border: 1px solid var(--contact-line);
  background: var(--contact-deep);
}

.page-contact__visual-img {
  border-radius: 0;
}

.page-contact__visual-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 0.7rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--color-meteor);
  background: linear-gradient(180deg, transparent, rgba(9, 9, 11, 0.86));
}

.page-contact__visual-tip {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: center;
  padding: 0.6rem 0.9rem;
  border-radius: 1rem;
  border: 1px solid rgba(168, 85, 247, 0.18);
  background: rgba(26, 43, 77, 0.4);
}

.page-contact__visual-line {
  position: relative;
  width: 2px;
  height: 58px;
  background: linear-gradient(180deg, var(--color-orange), var(--color-purple), transparent);
}

.page-contact__visual-tip p {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--color-starlight);
}

/* ===== 常见响应区 ===== */
.page-contact__response {
  position: relative;
  background:
    radial-gradient(circle at 85% 30%, rgba(255, 107, 53, 0.12) 0%, transparent 44%),
    linear-gradient(135deg, var(--color-midnight), var(--color-space) 76%);
  padding-top: var(--section-space);
  padding-bottom: var(--section-space);
}

.page-contact__response::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-purple), transparent);
}

.page-contact__response-inner {
  position: relative;
  border-left: 3px solid var(--color-orange);
  padding-left: clamp(1.2rem, 3vw, 2rem);
}

.page-contact__response-index {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  color: rgba(203, 213, 225, 0.5);
  margin-bottom: 0.7rem;
}

.page-contact__response-inner h2 {
  margin: 0 0 1.1rem;
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  letter-spacing: -0.02em;
  color: var(--color-meteor);
}

.page-contact__response-inner p {
  margin: 0 0 0.9rem;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--color-starlight);
}

.page-contact__keyword {
  color: var(--color-meteor);
  background: rgba(168, 85, 247, 0.14);
  border-radius: 0.3em;
  padding: 0.08em 0.28em;
  font-family: var(--font-mono);
  font-size: 0.88em;
  white-space: nowrap;
}

.page-contact__response-mail {
  margin-top: 1.2rem;
}

.page-contact__response-mail a {
  color: var(--color-orange);
  text-decoration: none;
  border-bottom: 1px dashed rgba(255, 107, 53, 0.55);
}

.page-contact__response-mail a:hover {
  color: var(--color-purple);
  border-color: var(--color-purple);
}

/* ===== 更多帮助区 ===== */
.page-contact__assist {
  background: var(--color-space);
  padding-bottom: var(--section-space);
}

.page-contact__assist-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 2.25rem;
}

.page-contact__assist-item {
  background: var(--contact-soft);
  border: 1px solid var(--contact-line);
  border-radius: 1.25rem;
  padding: 1.6rem 1.5rem;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.page-contact__assist-item:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 107, 53, 0.4);
}

.page-contact__assist-item h3 {
  margin: 0.85rem 0 0.4rem;
  font-family: var(--font-heading);
  font-size: 1.12rem;
  color: var(--color-meteor);
}

.page-contact__assist-text {
  margin: 0 0 1rem;
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--color-starlight);
}

.page-contact__assist-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--color-orange);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, color 0.25s ease;
}

.page-contact__assist-link::after {
  content: "→";
  font-family: var(--font-mono);
  transition: transform 0.25s ease;
}

.page-contact__assist-link:hover {
  color: var(--color-purple);
  border-color: rgba(168, 85, 247, 0.5);
}

.page-contact__assist-link:hover::after {
  transform: translateX(4px);
}

/* ===== 响应式布局 ===== */
@media (min-width: 640px) {
  .page-contact__channel-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-contact__channel-map {
    grid-template-columns: 260px 1fr;
    align-items: center;
  }

  .page-contact__channel-map-copy {
    padding: 0.5rem 0.8rem;
  }
}

@media (min-width: 900px) {
  .page-contact__head-grid {
    grid-template-columns: 1fr auto;
    gap: 2.5rem;
  }

  .page-contact__head-meta {
    flex-direction: column;
    align-items: flex-end;
    gap: 0.5rem;
  }

  .page-contact__message-grid {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: start;
  }

  .page-contact__form-visual {
    padding-top: 0.4rem;
  }
}

@media (min-width: 1120px) {
  .page-contact__channel-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-contact__assist-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}