.page-contact {
  --contact-line: rgba(136, 146, 176, 0.22);
  --contact-glow: rgba(57, 255, 20, 0.14);
  position: relative;
  background: linear-gradient(180deg, var(--c-deep) 0%, var(--c-ink) 140%);
  color: var(--c-frost);
  overflow-x: hidden;
  font-family: var(--font-body);
}

/* ===== 面包屑 ===== */
.page-contact__breadcrumb {
  max-width: var(--container);
  margin: 0 auto;
  padding: 1rem 1.25rem 0.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--c-slate);
}
.page-contact__breadcrumb a {
  color: var(--c-slate);
  text-decoration: none;
  transition: color 0.25s ease;
}
.page-contact__breadcrumb a:hover {
  color: var(--c-neon);
}
.page-contact__breadcrumb [aria-current="page"] {
  color: var(--c-frost);
}
.page-contact__crumb-sep {
  opacity: 0.55;
}

/* ===== Hero 分屏 ===== */
.page-contact__hero {
  position: relative;
  min-height: 68vh;
  display: flex;
  align-items: flex-end;
  margin-bottom: 2.5rem;
}
.page-contact__hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  isolation: isolate;
}
.page-contact__hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.page-contact__hero-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 25, 47, 0.58) 0%, rgba(10, 25, 47, 0.84) 58%, var(--c-deep) 100%);
  z-index: 1;
}
.page-contact__hero-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  opacity: 0.9;
  pointer-events: none;
}
.page-contact__hero-copy {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 3rem 1.25rem 4.5rem;
}
.page-contact__kicker {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-neon);
  border: 1px solid rgba(57, 255, 20, 0.35);
  background: rgba(57, 255, 20, 0.07);
  padding: 0.25rem 0.7rem;
  margin: 0 0 0.9rem;
}
.page-contact__hero h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: var(--fs-display);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  transform: skew(-4deg);
  color: var(--c-frost);
}
.page-contact__hero-desc {
  max-width: 34rem;
  margin: 0 0 1.8rem;
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--c-slate);
}
.page-contact__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}
.page-contact__hero-btn {
  min-width: 9.5rem;
  justify-content: center;
}

/* ===== 联系渠道 ===== */
.page-contact__channels {
  padding: 0 0 2.5rem;
}
.page-contact__section-head {
  text-align: center;
  max-width: 46rem;
  margin: 0 auto 2.2rem;
  padding: 0 1.25rem;
}
.page-contact__section-head .page-contact__kicker {
  margin-bottom: 0.7rem;
}
.page-contact__section-head h2,
.page-contact__promise-top h2 {
  margin: 0 0 0.7rem;
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: 700;
  color: var(--c-frost);
}
.page-contact__section-desc {
  margin: 0;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--c-slate);
}
.page-contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  padding: 0 1.25rem;
  max-width: var(--container);
  margin: 0 auto;
}
.page-contact__channel-card {
  position: relative;
  background: var(--c-paper);
  color: var(--c-ink);
  border: 1px solid rgba(10, 25, 47, 0.14);
  border-radius: var(--radius);
  padding: 2rem 1.5rem 1.75rem;
  text-align: center;
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}
.page-contact__channel-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--grad-progress);
  opacity: 0.4;
  transition: opacity 0.3s ease;
}
.page-contact__channel-card:hover,
.page-contact__channel-card:focus-within {
  border-color: var(--c-neon);
  box-shadow: 0 0 0 1px var(--c-neon), 0 16px 36px var(--contact-glow);
  transform: translateY(-4px);
}
.page-contact__channel-card:hover::before {
  opacity: 1;
}
.page-contact__channel-num {
  position: absolute;
  top: 1rem;
  left: 1rem;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: rgba(10, 25, 47, 0.4);
  border: 1px solid rgba(10, 25, 47, 0.18);
  padding: 0.15rem 0.45rem;
  border-radius: 2px;
}
.page-contact__channel-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--c-deep);
  color: var(--c-neon);
  margin-bottom: 1rem;
  box-shadow: 0 0 22px rgba(57, 255, 20, 0.16);
}
.page-contact__channel-card--hot .page-contact__channel-icon {
  color: var(--c-purple);
  box-shadow: 0 0 22px rgba(191, 0, 255, 0.2);
}
.page-contact__channel-card h3 {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: 700;
  letter-spacing: 0.03em;
}
.page-contact__channel-value {
  margin: 0 0 0.8rem;
  font-size: 1rem;
  font-weight: 600;
  word-break: break-all;
  color: var(--c-deep);
}
.page-contact__channel-tip {
  margin: 0 0 1.2rem;
  font-size: 0.9rem;
  line-height: 1.65;
  color: rgba(13, 17, 23, 0.7);
}
.page-contact__channel-btn {
  display: inline-flex;
  color: var(--c-deep);
  border-color: rgba(10, 25, 47, 0.35);
}
.page-contact__channel-btn:hover {
  border-color: var(--c-neon);
  color: var(--c-neon);
  background: rgba(57, 255, 20, 0.1);
}
.page-contact__channel-hours {
  display: inline-block;
  margin-top: 0.2rem;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: rgba(13, 17, 23, 0.65);
  border: 1px dashed rgba(10, 25, 47, 0.3);
  padding: 0.25rem 0.7rem;
}

/* ===== 反馈表单 ===== */
.page-contact__feedback {
  padding: 3.5rem 0 3rem;
  background:
    radial-gradient(ellipse 80% 60% at 20% 0%, rgba(191, 0, 255, 0.08), transparent 60%),
    radial-gradient(ellipse 70% 50% at 90% 100%, rgba(57, 255, 20, 0.07), transparent 55%),
    var(--c-deep);
}
.page-contact__feedback-layout {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.25rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
.page-contact__feedback-intro h2 {
  margin: 0 0 0.8rem;
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: 700;
  color: var(--c-frost);
}
.page-contact__feedback-desc {
  margin: 0 0 1.4rem;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--c-slate);
}
.page-contact__feedback-media {
  margin-bottom: 1rem;
}
.page-contact__feedback-img {
  width: 100%;
  max-width: 180px;
  height: auto;
  display: block;
  border-radius: 50%;
  border: 1px solid var(--line-purple);
  box-shadow: 0 0 30px rgba(191, 0, 255, 0.14);
  aspect-ratio: 1 / 1;
  object-fit: cover;
}
.page-contact__faq-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--c-neon);
  border: 1px solid var(--line-neon);
  background: rgba(57, 255, 20, 0.06);
  text-decoration: none;
  transition: background 0.25s ease, box-shadow 0.25s ease;
}
.page-contact__faq-link:hover {
  background: rgba(57, 255, 20, 0.12);
  box-shadow: 0 0 20px rgba(57, 255, 20, 0.12);
}
.page-contact__faq-arrow {
  font-size: 1.15rem;
  line-height: 1;
}

.page-contact__form {
  background: rgba(13, 17, 23, 0.72);
  border: 1px solid var(--contact-line);
  border-radius: var(--radius);
  padding: 1.75rem 1.25rem 1.5rem;
  box-shadow: 0 24px 60px rgba(10, 25, 47, 0.5);
}
.page-contact__field {
  margin-bottom: 1.5rem;
}
.page-contact__field label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--c-slate);
}
.page-contact__required {
  color: var(--c-neon);
  margin-left: 0.15rem;
}
.page-contact__input,
.page-contact__select,
.page-contact__textarea {
  width: 100%;
  padding: 0.7rem 0;
  border: 0;
  border-bottom: 2px solid rgba(136, 146, 176, 0.35);
  background: transparent;
  color: var(--c-frost);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.5;
  outline: none;
  border-radius: 0;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  -webkit-appearance: none;
  appearance: none;
}
.page-contact__input::placeholder,
.page-contact__textarea::placeholder {
  color: rgba(136, 146, 176, 0.5);
}
.page-contact__input:focus,
.page-contact__select:focus,
.page-contact__textarea:focus {
  border-bottom-color: var(--c-neon);
  box-shadow: 0 1px 0 var(--c-neon);
}
.page-contact__input:invalid:not(:placeholder-shown),
.page-contact__textarea:invalid:not(:placeholder-shown) {
  border-bottom-color: rgba(255, 99, 132, 0.6);
}
.page-contact__select-wrap {
  position: relative;
}
.page-contact__select {
  padding-right: 2rem;
  cursor: pointer;
  color: var(--c-frost);
}
.page-contact__select option {
  background: var(--c-paper);
  color: var(--c-ink);
  font-family: var(--font-body);
}
.page-contact__select-arrow {
  position: absolute;
  right: 0.2rem;
  top: 50%;
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 8px solid var(--c-slate);
  pointer-events: none;
  transform: translateY(-50%);
  transition: border-top-color 0.3s ease;
}
.page-contact__select-wrap:focus-within .page-contact__select-arrow {
  border-top-color: var(--c-neon);
}
.page-contact__textarea {
  resize: vertical;
  min-height: 7rem;
}
.page-contact__submit {
  width: 100%;
  justify-content: center;
  margin-top: 0.25rem;
}
.page-contact__form-note {
  margin: 0.9rem 0 0;
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--c-slate);
  text-align: center;
}

/* ===== 响应承诺 ===== */
.page-contact__promise {
  padding: 3.5rem 0 2.5rem;
}
.page-contact__promise-top {
  text-align: center;
  margin-bottom: 2.2rem;
  padding: 0 1.25rem;
}
.page-contact__promise-top .page-contact__kicker {
  margin-bottom: 0.7rem;
}
.page-contact__promise-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.25rem;
}
.page-contact__promise-card {
  position: relative;
  background: rgba(13, 17, 23, 0.6);
  border: 1px solid var(--contact-line);
  border-radius: var(--radius);
  padding: 2rem 1.4rem 1.75rem;
  text-align: center;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.page-contact__promise-card:hover {
  border-color: var(--line-purple);
  box-shadow: 0 0 0 1px rgba(191, 0, 255, 0.45), 0 16px 36px rgba(10, 25, 47, 0.45);
}
.page-contact__promise-value {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  color: var(--c-neon);
  background: linear-gradient(100deg, var(--c-neon), var(--c-purple));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.page-contact__promise-card h3 {
  margin: 0 0 0.55rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--c-frost);
}
.page-contact__promise-desc {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--c-slate);
}

/* ===== 信任区 ===== */
.page-contact__trust {
  padding: 1.5rem 0 3.5rem;
}
.page-contact__trust-box {
  max-width: var(--container);
  margin: 0 auto;
  border: 1px solid var(--contact-line);
  border-left: 4px solid var(--c-neon);
  background: rgba(10, 25, 47, 0.52);
  padding: 1.75rem 1.5rem;
}
.page-contact__trust-line {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--c-frost);
}
.page-contact__trust-scale {
  margin: 0 0 1.2rem;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--c-slate);
}
.page-contact__trust-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}
.page-contact__trust-link {
  color: var(--c-neon);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease;
}
.page-contact__trust-link:hover {
  border-bottom-color: var(--c-neon);
}

/* ===== 响应式：平板与桌面 ===== */
@media (min-width: 768px) {
  .page-contact__breadcrumb {
    padding: 1.25rem 2rem 0.75rem;
  }
  .page-contact__hero {
    min-height: 76vh;
  }
  .page-contact__hero-copy {
    padding-bottom: 5.5rem;
  }
  .page-contact__hero-desc {
    font-size: 1.1rem;
    max-width: 36rem;
  }
  .page-contact__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
  .page-contact__channel-card {
    padding: 2.2rem 1.6rem 1.9rem;
  }
  .page-contact__feedback {
    padding: 4.5rem 0 4rem;
  }
  .page-contact__feedback-layout {
    grid-template-columns: 5fr 7fr;
    gap: 3rem;
    align-items: start;
  }
  .page-contact__feedback-intro {
    position: sticky;
    top: 4rem;
  }
  .page-contact__form {
    padding: 2.2rem 2rem 2rem;
  }
  .page-contact__submit {
    width: auto;
    min-width: 10rem;
  }
  .page-contact__promise {
    padding: 4.5rem 0 3rem;
  }
  .page-contact__promise-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
  .page-contact__trust {
    padding: 2rem 0 4.5rem;
  }
  .page-contact__trust-box {
    padding: 2rem 2.25rem;
  }
}

/* ===== 窄屏防溢出 ===== */
@media (max-width: 420px) {
  .page-contact__hero h1 {
    font-size: 2.4rem;
  }
  .page-contact__hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .page-contact__hero-btn {
    width: 100%;
  }
  .page-contact__channel-value {
    font-size: 0.9rem;
    word-break: break-word;
  }
}