.page-contact {
  position: relative;
  background: var(--deep-black);
}

.page-contact .container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ===== 首屏 ===== */
.page-contact .page-hero {
  position: relative;
  padding: 88px 0 56px;
  background:
    linear-gradient(rgba(0, 163, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 163, 255, 0.06) 1px, transparent 1px);
  background-size: 32px 32px;
  border-bottom: 1px solid var(--divider);
  margin-bottom: 72px;
}

.page-contact .page-hero__index {
  display: inline-block;
  margin-bottom: 16px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--muted);
  border: 1px solid var(--divider);
  padding: 4px 10px;
}

.page-contact .page-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(44px, 7vw, 84px);
  line-height: 1.06;
  letter-spacing: 0.02em;
  color: var(--white);
  text-transform: uppercase;
}

.page-contact .page-hero__desc {
  max-width: 620px;
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--silver);
}

.page-contact__hero-note {
  position: absolute;
  top: 28px;
  right: 4px;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  color: var(--electric-blue);
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.42em;
  border-left: 2px solid var(--electric-blue);
  padding-left: 8px;
  opacity: 0.8;
  pointer-events: auto;
}

/* ===== 通用章节 ===== */
.page-contact .section__header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}

.page-contact .section__header h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 26px;
  line-height: 1.2;
  color: var(--white);
  letter-spacing: 0.02em;
}

.page-contact .section__index {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
  border: 1px solid var(--divider);
  padding: 4px 10px;
  white-space: nowrap;
}

/* ===== 01 官方联系索引 ===== */
.contact-terminal {
  padding: 40px 0 64px;
  border-bottom: 1px solid var(--divider);
}

.contact-terminal__grid {
  display: grid;
  gap: 24px;
}

.contact-terminal__media {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--divider);
}

.contact-terminal__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.terminal {
  background: #0d1521;
  border: 1px solid rgba(0, 163, 255, 0.22);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
  font-family: var(--font-data);
}

.terminal__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--divider);
  background: rgba(19, 36, 58, 0.6);
}

.terminal__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.terminal__dot--red {
  background: #ff5f57;
}

.terminal__dot--yellow {
  background: #febc2e;
}

.terminal__dot--green {
  background: #28c840;
}

.terminal__path {
  margin-left: 8px;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.05em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.terminal__screen {
  padding: 18px 16px 14px;
  min-height: 260px;
}

.terminal__line {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 0 0 18px;
  flex-wrap: wrap;
  font-size: 14px;
  line-height: 1.7;
}

.terminal__prompt {
  color: var(--fluorescent-green);
  font-size: 15px;
  line-height: 1.7;
  user-select: none;
}

.terminal__cmd {
  color: var(--electric-blue);
  font-weight: 700;
  min-width: 42px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.terminal__value {
  color: var(--silver);
  word-break: break-all;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.terminal__icon {
  flex: 0 0 auto;
  color: var(--muted);
}

.terminal__copy {
  background: transparent;
  border: 1px solid var(--divider);
  color: var(--muted);
  font-family: var(--font-data);
  font-size: 12px;
  padding: 2px 10px;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.terminal__copy:hover,
.terminal__copy[data-copied] {
  border-color: var(--electric-blue);
  color: var(--electric-blue);
}

.terminal__ok {
  color: var(--fluorescent-green);
  font-size: 12px;
  letter-spacing: 0.08em;
  border: 1px solid rgba(57, 255, 20, 0.4);
  padding: 1px 8px;
}

.terminal__cursor {
  margin: 0;
  color: var(--electric-blue);
  animation: page-contact-blink 1s steps(1) infinite;
  font-size: 14px;
}

@keyframes page-contact-blink {
  0%, 55% {
    opacity: 1;
  }
  56%, 100% {
    opacity: 0;
  }
}

.contact-terminal__foot {
  margin: 24px 0 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--silver);
  padding: 16px 20px;
  background: rgba(19, 36, 58, 0.5);
  border-left: 4px solid var(--electric-blue);
}

.contact-terminal__foot a {
  color: var(--electric-blue);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ===== 02 Telegram联系入口设置 ===== */
.telegram-guide {
  padding: 64px 0;
  border-bottom: 1px solid var(--divider);
}

.telegram-guide__intro {
  max-width: 640px;
  margin: 0 0 32px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--silver);
}

.telegram-guide__media {
  margin: 0 0 40px;
  overflow: hidden;
  border: 1px solid var(--divider);
}

.telegram-guide__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.telegram-steps {
  list-style: none;
  margin: 0 0 32px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.telegram-steps__item {
  position: relative;
  background: rgba(19, 36, 58, 0.55);
  border: 1px solid var(--divider);
  border-left: 4px solid var(--electric-blue);
  padding: 22px 20px;
  flex: 1;
  min-width: 0;
}

.telegram-steps__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-data);
  font-size: 36px;
  font-weight: 700;
  line-height: 1;
  color: var(--electric-blue);
  opacity: 0.45;
}

.telegram-steps__body h3 {
  margin: 0 0 10px;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 17px;
  color: var(--white);
}

.telegram-steps__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
}

.telegram-steps__arrow {
  display: none;
  color: var(--electric-blue);
  padding: 0 2px;
  align-self: center;
}

.telegram-steps__more {
  margin-top: 12px;
  border-top: 1px dashed var(--divider);
  padding-top: 10px;
}

.telegram-steps__more summary {
  cursor: pointer;
  color: var(--electric-blue);
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.06em;
  user-select: none;
  list-style: none;
}

.telegram-steps__more summary::-webkit-details-marker {
  display: none;
}

.telegram-steps__more summary::before {
  content: "＋ ";
  color: var(--electric-blue);
}

.telegram-steps__more[open] summary::before {
  content: "－ ";
}

.telegram-steps__more p {
  margin-top: 10px;
  font-size: 13px;
  color: var(--muted);
}

.telegram-guide__foot {
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--silver);
  padding: 14px 18px;
  background: transparent;
  border: 1px dashed var(--divider);
}

.telegram-guide__foot a {
  color: var(--electric-blue);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ===== 03 邮件联系 ===== */
.email-contact {
  padding: 64px 0;
  border-bottom: 1px solid var(--divider);
}

.email-contact__box {
  background: linear-gradient(135deg, rgba(0, 163, 255, 0.08), rgba(19, 36, 58, 0.45));
  border: 1px solid var(--divider);
  padding: 32px 24px;
  text-align: center;
}

.email-contact__lead {
  margin: 0 0 24px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--silver);
}

.email-contact__row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.email-contact__address {
  font-family: var(--font-data);
  font-size: 17px;
  font-weight: 700;
  color: var(--electric-blue);
  background: rgba(0, 0, 0, 0.3);
  padding: 8px 16px;
  border: 1px solid rgba(0, 163, 255, 0.3);
  word-break: break-all;
}

.email-contact__hint {
  margin: 20px 0 0;
  font-size: 13px;
  color: var(--muted);
}

.page-contact .btn--primary {
  background: var(--electric-blue);
  color: var(--deep-black);
  border: 0;
  padding: 10px 22px;
  font-family: var(--font-body);
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}

.page-contact .btn--primary:hover {
  background: var(--white);
  transform: translateY(-2px);
}

.page-contact .btn--primary[data-copied] {
  background: var(--fluorescent-green);
}

/* ===== 04 联系地址 ===== */
.address-contact {
  padding: 64px 0 88px;
}

.address-contact__grid {
  display: grid;
  gap: 24px;
}

.address-contact__map {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--divider);
}

.address-contact__map img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.address-contact__pin {
  position: absolute;
  top: 40%;
  left: 72%;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--neon-orange);
  border: 3px solid var(--white);
  box-shadow: 0 0 0 5px rgba(255, 94, 0, 0.3), 0 4px 16px rgba(0, 0, 0, 0.5);
  cursor: default;
  z-index: 2;
}

.address-contact__pin::after {
  content: attr(data-label);
  position: absolute;
  bottom: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: var(--cyan-slate);
  color: var(--white);
  font-family: var(--font-data);
  font-size: 12px;
  white-space: nowrap;
  padding: 4px 10px;
  border: 1px solid var(--electric-blue);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  z-index: 3;
}

.address-contact__pin::before {
  content: "";
  position: absolute;
  bottom: calc(100% + 2px);
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--electric-blue);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
  z-index: 3;
}

.address-contact__pin:hover::after,
.address-contact__pin:hover::before {
  opacity: 1;
}

.address-contact__pin:hover::after {
  transform: translateX(-50%) translateY(0);
}

.address-contact__info {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 24px 0;
}

.address-contact__coord {
  margin: 0 0 8px;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--electric-blue);
}

.address-contact__city {
  margin: 0 0 12px;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 22px;
  color: var(--white);
}

.address-contact__text {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver);
}

.address-contact__note {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

/* ===== 响应式 ===== */
@media (min-width: 768px) {
  .page-contact .page-hero__desc {
    font-size: 16px;
  }

  .email-contact__row {
    flex-direction: row;
    justify-content: center;
  }

  .email-contact__box {
    padding: 40px;
  }
}

@media (min-width: 1024px) {
  .page-contact {
    padding-top: 0;
  }

  .page-contact .page-hero {
    padding: 112px 0 72px;
    margin-bottom: 88px;
  }

  .page-contact .page-hero__title {
    font-size: clamp(56px, 7.5vw, 96px);
  }

  .page-contact__hero-note {
    top: 48px;
    right: 8px;
    font-size: 12px;
  }

  .contact-terminal {
    padding: 48px 0 72px;
  }

  .contact-terminal__grid {
    grid-template-columns: 5fr 6fr;
    gap: 32px;
    align-items: stretch;
  }

  .contact-terminal__media {
    min-height: 100%;
  }

  .terminal__screen {
    padding: 24px 24px 18px;
  }

  .telegram-guide {
    padding: 80px 0;
  }

  .telegram-guide__intro {
    font-size: 16px;
  }

  .telegram-steps {
    flex-direction: row;
    align-items: stretch;
    gap: 0;
  }

  .telegram-steps__item {
    padding: 28px 24px;
  }

  .telegram-steps__arrow {
    display: flex;
    align-self: center;
    color: var(--electric-blue);
    padding: 0 6px;
  }

  .email-contact {
    padding: 80px 0;
  }

  .address-contact {
    padding: 80px 0 104px;
  }

  .address-contact__grid {
    grid-template-columns: 7fr 5fr;
    gap: 32px;
  }

  .address-contact__info {
    padding: 24px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact__hero,
  .page-contact .page-hero__index,
  .page-contact .page-hero__title,
  .page-contact .page-hero__desc,
  .page-contact .section__header,
  .contact-terminal,
  .contact-terminal .terminal,
  .telegram-guide,
  .telegram-steps__item,
  .email-contact,
  .address-contact {
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }

  .terminal__cursor {
    animation: none;
    opacity: 0;
  }

  .address-contact__pin::after,
  .address-contact__pin::before {
    transition: none;
  }
}