.page-contact {
  --pc-line-soft: rgba(143, 166, 184, 0.14);
  --pc-amber-soft: rgba(255, 154, 31, 0.4);
  background-color: var(--ink);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 72px 72px;
  color: var(--mist);
  overflow-x: clip;
  padding-bottom: clamp(2rem, 6vw, 4.5rem);
}

.page-contact h2 {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(1.3rem, 3.2vw, 2rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 0.45rem 0 0.75rem;
}

.page-contact .section[id] {
  scroll-margin-top: 6.5rem;
}

.page-contact .contact-crumb {
  padding-top: clamp(1.25rem, 3vw, 2rem);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--steel);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.page-contact .contact-crumb a {
  color: var(--steel);
  text-decoration: none;
  transition: color var(--t) var(--ease);
}

.page-contact .contact-crumb a:hover {
  color: var(--amber);
}

.page-contact .contact-crumb a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .contact-crumb [aria-current="page"] {
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-top: clamp(1rem, 3vw, 2rem);
  padding-bottom: clamp(1.75rem, 4vw, 3rem);
}

.page-contact .contact-hero__title {
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(2.05rem, 6.6vw, 4.2rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--paper);
  margin: 0.6rem 0 0;
  max-width: 18ch;
}

.page-contact .contact-hero__lede {
  max-width: 60ch;
  color: var(--mist);
  font-size: clamp(1rem, 1.6vw, 1.1rem);
  line-height: 1.75;
  margin-top: 1rem;
}

.page-contact .contact-hero__stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1.75rem;
  padding-top: 1.35rem;
  border-top: 1px solid var(--line);
}

.page-contact .contact-stat {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding-left: 0.85rem;
  border-left: 2px solid var(--pc-amber-soft);
}

.page-contact .contact-stat__value {
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .contact-stat__label {
  font-size: 0.82rem;
  color: var(--steel);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.75rem;
}

/* ---------- 第 3 项栏目入口 ---------- */
.page-contact .contact-entry__box {
  display: grid;
  gap: 1.1rem;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  padding: clamp(1.2rem, 3vw, 2rem);
}

.page-contact .contact-entry__num {
  font-family: var(--font-mono);
  font-size: clamp(2.6rem, 8vw, 4.4rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.05em;
  color: rgba(143, 166, 184, 0.22);
}

.page-contact .contact-entry__text h2 {
  margin-top: 0;
}

.page-contact .contact-entry__text p {
  color: var(--steel);
  line-height: 1.75;
  margin: 0 0 0.9rem;
}

.page-contact .contact-entry__path {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.84rem;
  color: var(--steel);
  margin: 0;
}

.page-contact .contact-entry__path code {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--paper);
  background: var(--ink-3);
  border: 1px solid var(--line);
  padding: 0.3rem 0.6rem;
  word-break: break-word;
}

.page-contact .contact-entry__link {
  justify-self: start;
}

/* ---------- 反馈表单 ---------- */
.page-contact .contact-form__grid {
  display: grid;
  gap: 2rem;
}

.page-contact .contact-form__lede {
  color: var(--steel);
  line-height: 1.75;
  max-width: 56ch;
  margin: 0;
}

.page-contact .fb-form {
  margin-top: 1.75rem;
  background: var(--ink-2);
  border: 1px solid var(--line);
  padding: clamp(1.1rem, 3vw, 1.75rem);
}

.page-contact .fb-field + .fb-field {
  margin-top: 1.2rem;
}

.page-contact .fb-field__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 0.5rem;
}

.page-contact .fb-req {
  color: var(--amber);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  margin-left: 0.35rem;
}

.page-contact .fb-field input[type="text"],
.page-contact .fb-field input[type="email"],
.page-contact .fb-field textarea {
  width: 100%;
  box-sizing: border-box;
  background: var(--ink-3);
  border: 1px solid var(--line);
  border-radius: 0;
  padding: 0.8rem 0.9rem;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.5;
  transition: border-color var(--t) var(--ease), background-color var(--t) var(--ease);
}

.page-contact .fb-field textarea {
  resize: vertical;
  min-height: 7rem;
}

.page-contact .fb-field input::placeholder,
.page-contact .fb-field textarea::placeholder {
  color: rgba(143, 166, 184, 0.6);
}

.page-contact .fb-field input:hover,
.page-contact .fb-field textarea:hover {
  border-color: var(--line-strong);
}

.page-contact .fb-field input:focus-visible,
.page-contact .fb-field textarea:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-color: var(--cyan);
}

.page-contact .fb-field input:not(:placeholder-shown):invalid,
.page-contact .fb-field textarea:not(:placeholder-shown):invalid {
  border-color: var(--alert);
}

.page-contact .fb-field__hint,
.page-contact .fb-field__note {
  margin: 0.5rem 0 0;
  font-size: 0.82rem;
  line-height: 1.65;
  color: var(--steel);
}

.page-contact .fb-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-contact .fb-chip {
  position: relative;
  display: inline-flex;
}

.page-contact .fb-chip input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  margin: 0;
}

.page-contact .fb-chip span {
  display: inline-block;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--line);
  color: var(--steel);
  font-size: 0.86rem;
  line-height: 1.2;
  cursor: pointer;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease), background-color var(--t) var(--ease);
}

.page-contact .fb-chip span:hover {
  border-color: var(--line-strong);
  color: var(--paper);
}

.page-contact .fb-chip input:checked + span {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--ink);
  font-weight: 700;
}

.page-contact .fb-chip input:focus-visible + span {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .fb-submit {
  width: 100%;
  margin-top: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: transform var(--t) var(--ease), background-color var(--t) var(--ease);
}

.page-contact .fb-submit:hover {
  transform: translateY(-2px);
  background: var(--amber-deep);
}

.page-contact .fb-form__hint {
  margin: 0.85rem 0 0;
  font-size: 0.82rem;
  line-height: 1.65;
  color: var(--steel);
}

.page-contact .contact-form__aside {
  display: grid;
  gap: 1.25rem;
  align-content: start;
}

.page-contact .fb-steps {
  background: var(--ink-2);
  border: 1px solid var(--line);
  padding: 1.25rem;
}

.page-contact .fb-steps__title {
  margin: 0 0 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-contact .fb-steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.8rem;
}

.page-contact .fb-steps__list li {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.9rem;
  color: var(--mist);
}

.page-contact .fb-steps__dot {
  flex: none;
  width: 9px;
  height: 9px;
  background: transparent;
  border: 1px solid var(--line-strong);
}

.page-contact .fb-steps__dot--now {
  background: var(--amber);
  border-color: var(--amber);
}

/* ---------- 图片框架 ---------- */
.page-contact .media-frame {
  margin: 0;
  display: block;
}

.page-contact .media-frame img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-contact .media-frame--4x3 img {
  aspect-ratio: 4 / 3;
}

/* ---------- 联系方式 ---------- */
.page-contact .contact-channels__lede {
  color: var(--steel);
  line-height: 1.75;
  max-width: 60ch;
  margin: 0;
}

.page-contact .channel-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.75rem;
}

.page-contact .channel-card {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-top: 2px solid var(--amber);
  padding: 1.25rem;
  transition: transform var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-contact .channel-card:hover {
  transform: translateY(-2px);
  border-color: var(--amber);
}

.page-contact .channel-card__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-contact .channel-card__value {
  margin: 0;
  font-size: clamp(1rem, 1.6vw, 1.12rem);
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .channel-card__note {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--steel);
}

.page-contact .channel-card .copy-btn {
  align-self: flex-start;
  margin-top: 0.2rem;
}

.page-contact .contact-place {
  display: grid;
  gap: 1.5rem;
  margin-top: 2.25rem;
  align-items: center;
}

.page-contact .contact-place__text h3 {
  margin: 0.4rem 0 0.7rem;
  font-family: var(--font-title);
  font-size: clamp(1.15rem, 2.2vw, 1.5rem);
  font-weight: 800;
  line-height: 1.25;
  color: var(--paper);
}

.page-contact .contact-place__text p {
  margin: 0 0 0.95rem;
  color: var(--steel);
  line-height: 1.75;
}

.page-contact .contact-place__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.1rem;
}

/* ---------- 处理流程 ---------- */
.page-contact .flow-list {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .flow-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .flow-list__idx {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--amber);
}

.page-contact .flow-list__body h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-title);
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .flow-list__body p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--steel);
}

/* ---------- 加急与信息使用 ---------- */
.page-contact .contact-notes__grid {
  display: grid;
  gap: 1rem;
}

.page-contact .note-card {
  background: var(--ink-2);
  border: 1px solid var(--line);
  padding: clamp(1.2rem, 3vw, 1.9rem);
}

.page-contact .note-card--urgent {
  background: linear-gradient(135deg, rgba(255, 154, 31, 0.14) 0%, rgba(18, 42, 68, 0.95) 100%);
  border-color: var(--pc-amber-soft);
}

.page-contact .note-card h2 {
  font-size: clamp(1.15rem, 2.6vw, 1.5rem);
}

.page-contact .note-card p {
  margin: 0 0 0.9rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .note-card__mono {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--amber);
  background: rgba(11, 27, 43, 0.65);
  border-left: 2px solid var(--amber);
  padding: 0.6rem 0.8rem;
  word-break: break-word;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-hero__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
  }
}

@media (min-width: 760px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .flow-list li {
    grid-template-columns: 5rem minmax(0, 1fr);
    gap: 2rem;
    padding: 1.4rem 0;
  }

  .page-contact .contact-notes__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-entry__box {
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 2.25rem;
  }

  .page-contact .contact-place {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 2.5rem;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-form__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 3rem;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: 1ms !important;
  }

  .page-contact .channel-card:hover,
  .page-contact .fb-submit:hover {
    transform: none;
  }
}