.page-contact {
  --paper-offset: 6px;
  --card-pad-sm: 1.25rem;
  --card-pad-md: 1.8rem;
  background: var(--color-light-gray);
  color: var(--color-black);
  overflow: hidden;
}

/* ===== Hero 首屏 ===== */
.page-contact .contact-hero {
  background: var(--color-primary);
  background-image: linear-gradient(135deg, #0a2540 0%, #123b5e 60%, #17466e 100%);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
  padding: 3.5rem 0 3rem;
}
.page-contact .contact-hero .container {
  position: relative;
  z-index: 2;
}
.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  top: -10%;
  right: -22%;
  width: 60%;
  height: 120%;
  background: linear-gradient(135deg, transparent 0%, transparent 44%, rgba(255, 107, 0, 0.26) 44%, rgba(255, 107, 0, 0.26) 56%, transparent 56%);
  pointer-events: none;
  transform: skewX(-6deg);
}
.page-contact .diagonal-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 14px;
  background: repeating-linear-gradient(135deg, var(--color-accent) 0 18px, transparent 18px 36px);
  opacity: 0.7;
  z-index: 1;
  pointer-events: none;
}

.page-contact .contact-hero .breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  margin-bottom: 2.4rem;
}
.page-contact .contact-hero .breadcrumb a {
  color: rgba(255, 255, 255, 0.72);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.page-contact .contact-hero .breadcrumb a:hover {
  color: var(--color-accent);
}
.page-contact .contact-hero .breadcrumb-sep {
  color: var(--color-accent);
  margin: 0 0.5rem;
}
.page-contact .contact-hero .breadcrumb [aria-current="page"] {
  color: var(--color-white);
  opacity: 0.9;
}

.page-contact .contact-hero-grid {
  display: grid;
  gap: 2rem;
}
.page-contact .hero-copy .hero-index {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--color-accent);
  border: 1px solid rgba(255, 255, 255, 0.35);
  padding: 0.3rem 0.65rem;
  margin-bottom: 1.2rem;
}
.page-contact .hero-copy h1 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(2rem, 6vw, 3.6rem);
  line-height: 1.12;
  letter-spacing: 0.01em;
  margin: 0 0 1rem;
}
.page-contact .hero-copy .hero-accent {
  color: var(--color-accent);
}
.page-contact .hero-copy .hero-sub {
  font-size: 0.98rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.86);
  max-width: 32em;
  margin: 0 0 1.8rem;
}
.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.page-contact .contact-hero .btn {
  font-weight: 900;
  padding: 0.85rem 1.6rem;
  text-decoration: none;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}
.page-contact .contact-hero .btn-primary {
  background: var(--color-accent);
  border: 2px solid var(--color-accent);
  color: var(--color-white);
}
.page-contact .contact-hero .btn-primary:hover {
  background: #e05e00;
  border-color: #e05e00;
}
.page-contact .contact-hero .btn-outline {
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.65);
  color: var(--color-white);
}
.page-contact .contact-hero .btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.page-contact .hero-art {
  position: relative;
  height: 150px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.24);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.18);
  transform: rotate(-1.2deg);
}
.page-contact .hero-art::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 37, 64, 0.15), rgba(10, 37, 64, 0.35));
}
.page-contact .hero-art img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== 联系流程步骤 ===== */
.page-contact .contact-steps {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-mid-gray);
  padding: 2rem 0;
}
.page-contact .steps-grid {
  display: grid;
  gap: 1.25rem;
}
.page-contact .step-item {
  border-left: 3px solid var(--color-accent);
  padding-left: 1rem;
}
.page-contact .step-index {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--color-accent);
}
.page-contact .step-title {
  font-size: 1rem;
  font-weight: 900;
  color: var(--color-primary);
  margin: 0.35rem 0 0.3rem;
}
.page-contact .step-desc {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--color-dark-gray);
}

/* ===== 主内容区 ===== */
.page-contact .contact-main {
  background:
    repeating-linear-gradient(-45deg, transparent 0 14px, rgba(10, 37, 64, 0.022) 14px 16px),
    var(--color-white);
  padding: 3.5rem 0 4.5rem;
  position: relative;
}
.page-contact .contact-section-head {
  margin-bottom: 2.6rem;
}
.page-contact .contact-section-head .section-index {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  color: var(--color-accent);
}
.page-contact .contact-section-head h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 900;
  color: var(--color-primary);
  margin: 0.5rem 0 0.4rem;
}
.page-contact .contact-section-head p {
  max-width: 46em;
  margin: 0;
  color: var(--color-dark-gray);
  line-height: 1.7;
  font-size: 0.92rem;
}
.page-contact .contact-columns {
  display: grid;
  gap: 2rem;
}

/* ===== 纸张叠层卡片 ===== */
.page-contact .paper-card {
  background: var(--color-white);
  border: 1px solid var(--color-mid-gray);
  padding: var(--card-pad-md);
  position: relative;
  margin-bottom: 2.6rem;
}
.page-contact .paper-card::before {
  content: "";
  position: absolute;
  top: var(--paper-offset);
  left: var(--paper-offset);
  width: 100%;
  height: 100%;
  background: rgba(245, 245, 245, 0.72);
  border: 1px solid #d9d9d9;
  z-index: 0;
  pointer-events: none;
}
.page-contact .paper-card > * {
  position: relative;
  z-index: 1;
}
.page-contact .card-topline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: 0.6rem;
  margin-bottom: 1.5rem;
  gap: 0.75rem;
}
.page-contact .card-index {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  white-space: nowrap;
}
.page-contact .card-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--color-primary);
  margin: 0 0 0.5rem;
}
.page-contact .card-intro {
  color: var(--color-dark-gray);
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 0 0 1.3rem;
}

/* ===== 联系方法 ===== */
.page-contact .contact-methods {
  margin: 0 0 1.4rem;
}
.page-contact .contact-method {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 1rem 0;
  border-bottom: 1px dashed var(--color-mid-gray);
}
.page-contact .contact-method:last-child {
  border-bottom: 0;
}
.page-contact .method-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  align-self: flex-start;
  background: var(--color-pale-blue);
  color: var(--color-primary);
  padding: 0.2rem 0.5rem;
}
.page-contact .method-value {
  font-size: 1.05rem;
  font-weight: 900;
  color: var(--color-primary);
  text-decoration: none;
  word-break: break-all;
}
.page-contact a.method-value:hover {
  color: var(--color-accent);
}
.page-contact .method-desc {
  font-size: 0.82rem;
  color: var(--color-mid-gray);
  line-height: 1.5;
}
.page-contact .notice {
  background: var(--color-pale-blue);
  border-left: 3px solid var(--color-accent);
  padding: 0.9rem 1rem;
  font-size: 0.85rem;
  color: var(--color-dark-gray);
  line-height: 1.6;
}

/* ===== 直达区卡片 ===== */
.page-contact .direct-card {
  border-top: 3px solid var(--color-accent);
}
.page-contact .direct-visual {
  max-width: 230px;
  margin: 1.5rem auto;
  border: 1px solid var(--color-mid-gray);
  padding: 0.4rem;
  background: var(--color-white);
  transform: rotate(-1.2deg);
  box-shadow: 10px 10px 0 var(--color-light-gray);
}
.page-contact .direct-visual img {
  display: block;
  width: 100%;
  height: auto;
}
.page-contact .direct-points {
  list-style: none;
  margin: 1.5rem 0 1.6rem;
  padding: 0;
}
.page-contact .direct-points li {
  display: flex;
  gap: 0.8rem;
  align-items: flex-start;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--color-light-gray);
  font-size: 0.9rem;
  color: var(--color-black);
  line-height: 1.5;
}
.page-contact .direct-points .point-index {
  font-family: var(--font-mono);
  color: var(--color-accent);
  font-size: 0.78rem;
  flex-shrink: 0;
  line-height: 1.6;
}
.page-contact .direct-btn {
  display: block;
  text-align: center;
  font-weight: 900;
  font-size: 1.05rem;
  background: var(--color-accent);
  border: 2px solid var(--color-accent);
  color: var(--color-white);
  padding: 0.9rem 1.5rem;
  text-decoration: none;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}
.page-contact .direct-btn:hover {
  background: #e05e00;
  border-color: #e05e00;
}

/* ===== 反馈表单 ===== */
.page-contact .form-card {
  border-top: 3px solid var(--color-primary);
}
.page-contact .form-field {
  margin-bottom: 1.35rem;
}
.page-contact .form-field label {
  display: block;
  font-weight: 900;
  font-size: 0.85rem;
  color: var(--color-primary);
  margin-bottom: 0.35rem;
}
.page-contact .form-required {
  color: var(--color-accent);
}
.page-contact .form-field input,
.page-contact .form-field select,
.page-contact .form-field textarea {
  width: 100%;
  font: inherit;
  font-size: 0.95rem;
  padding: 0.75rem 0.85rem;
  border: 1.5px solid var(--color-primary);
  border-radius: 0;
  background: var(--color-white);
  color: var(--color-black);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}
.page-contact .form-field input::placeholder,
.page-contact .form-field textarea::placeholder {
  color: var(--color-mid-gray);
}
.page-contact .form-field input:focus,
.page-contact .form-field select:focus,
.page-contact .form-field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 4px 4px 0 rgba(255, 107, 0, 0.18);
}
.page-contact .form-field input:invalid:focus,
.page-contact .form-field select:invalid:focus,
.page-contact .form-field textarea:invalid:focus {
  border-color: #c0392b;
  box-shadow: 4px 4px 0 rgba(192, 57, 43, 0.12);
}
.page-contact .form-field select {
  appearance: none;
  -webkit-appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--color-primary) 50%),
    linear-gradient(135deg, var(--color-primary) 50%, transparent 50%);
  background-position:
    calc(100% - 18px) 50%,
    calc(100% - 13px) 50%;
  background-size: 5px 5px;
  background-repeat: no-repeat;
  padding-right: 2.2rem;
  cursor: pointer;
}
.page-contact .form-submit {
  width: 100%;
  font-weight: 900;
  font-size: 1rem;
  background: var(--color-accent);
  border: 2px solid var(--color-accent);
  color: var(--color-white);
  padding: 0.9rem 1.5rem;
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}
.page-contact .form-submit:hover {
  background: #e05e00;
  border-color: #e05e00;
}
.page-contact .form-note {
  font-size: 0.8rem;
  color: var(--color-mid-gray);
  text-align: center;
  margin: 0.75rem 0 0;
  line-height: 1.6;
}

/* ===== 底部渠道条 ===== */
.page-contact .contact-channel-strip {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 2.5rem 0;
  position: relative;
}
.page-contact .contact-channel-strip::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: repeating-linear-gradient(135deg, var(--color-accent) 0 12px, var(--color-primary) 12px 24px);
}
.page-contact .channel-strip-inner {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.page-contact .strip-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--color-accent);
}
.page-contact .strip-desc {
  margin: 0.4rem 0 0;
  font-size: 0.88rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.8);
  max-width: 38em;
}
.page-contact .strip-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.page-contact .strip-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-white);
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 0.45rem 0.85rem;
  font-size: 0.88rem;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}
.page-contact .strip-links a::before {
  content: "→";
  color: var(--color-accent);
  font-weight: 900;
}
.page-contact .strip-links a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ===== 桌面端 ===== */
@media (min-width: 768px) {
  .page-contact .steps-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-contact .channel-strip-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  .page-contact .contact-hero {
    padding: 4.5rem 0 4rem;
  }
  .page-contact .hero-art {
    height: 220px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 3rem;
  }
  .page-contact .hero-art {
    height: 280px;
  }
  .page-contact .contact-columns {
    grid-template-columns: 1fr 1.05fr;
    align-items: start;
    gap: 3rem;
  }
  .page-contact .contact-left,
  .page-contact .contact-right {
    position: relative;
  }
  .page-contact .paper-card {
    padding: 2.2rem;
  }
}