/* ==============================================
   Page: contact — 365官方网站登录联系我们
   作用域：.page-contact
   ============================================== */
.page-contact {
  --contact-gutter: clamp(20px, 4vw, 56px);
  --contact-max: 1440px;
  position: relative;
  width: 100%;
  max-width: var(--contact-max);
  margin: 0 auto;
  padding: 32px var(--contact-gutter) 80px;
  color: var(--text);
  overflow-x: clip;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.12;
  margin: 0;
}

.page-contact p {
  margin: 0;
}

/* ---------- Hero ---------- */
.contact-hero {
  position: relative;
  padding-top: 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: clamp(48px, 7vw, 80px);
}

.contact-hero__topline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.contact-hero__code {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--muted);
  border: 1px dashed var(--border);
  padding: 6px 10px;
  border-radius: 6px;
  white-space: nowrap;
}

.contact-hero__body {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  justify-content: space-between;
  align-items: flex-end;
  padding: clamp(40px, 7vw, 72px) 0 36px;
}

.contact-hero__title .contact-hero__kicker {
  display: block;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: .24em;
  color: var(--data);
  margin-bottom: 8px;
}

.contact-hero__title h1 {
  font-size: clamp(34px, 6.4vw, 72px);
  letter-spacing: .02em;
}

.contact-hero__desc {
  max-width: 380px;
  padding-bottom: 6px;
}

.contact-hero__desc .contact-hero__line {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .3em;
  color: var(--accent);
  margin-bottom: 10px;
}

.contact-hero__desc p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

/* ---------- Support Channels ---------- */
.contact-channels {
  margin-bottom: clamp(64px, 10vw, 110px);
}

.contact-channels__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 18px;
  margin-bottom: clamp(28px, 5vw, 48px);
}

.contact-channels__head h2 {
  font-size: clamp(24px, 3.2vw, 42px);
  margin-top: 10px;
}

.contact-channels__head-note {
  display: flex;
  gap: 10px;
  align-items: center;
  border: 1px dashed var(--border);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.45;
}

.contact-channels__head-note .data-num {
  font-family: var(--font-data);
  font-size: 26px;
  color: var(--accent);
}

/* Grid + Cards */
.contact-channels__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
}

.contact-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 30px 26px 26px;
  box-shadow: var(--shadow);
  transition: transform .35s var(--ease), border-color .3s var(--ease);
}

.contact-card::before,
.contact-card::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  pointer-events: none;
}

.contact-card::before {
  top: -2px;
  left: -2px;
  border-top: 2px solid var(--accent);
  border-left: 2px solid var(--accent);
  border-top-left-radius: 8px;
}

.contact-card::after {
  bottom: -2px;
  right: -2px;
  border-bottom: 2px solid var(--data);
  border-right: 2px solid var(--data);
  border-bottom-right-radius: 8px;
}

.contact-card--email {
  border-top: 3px solid var(--accent);
}

.contact-card--phone {
  border-top: 3px solid var(--data);
}

.contact-card--address {
  border-top: 3px solid var(--yellow);
}

.contact-card__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.contact-card__index {
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--muted);
  letter-spacing: .1em;
}

.contact-card__tag {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--text);
  background: rgba(168, 178, 209, .12);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 12px;
}

.contact-card__icon {
  width: 72px;
  height: 72px;
  margin-bottom: 18px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-card--email .contact-card__icon {
  background: var(--accent-soft);
}

.contact-card--phone .contact-card__icon {
  background: var(--data-soft);
}

.contact-card--address .contact-card__icon {
  background: rgba(255, 215, 0, .08);
}

.contact-card h3 {
  font-size: 25px;
  margin-bottom: 10px;
}

.contact-card > p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
  margin-bottom: 20px;
}

.contact-card__field {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 14px;
}

.contact-card__field dt {
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: .14em;
  margin-bottom: 6px;
}

.contact-card__field dd {
  margin: 0;
  font-family: var(--font-data);
  font-size: 14px;
  color: var(--text);
  word-break: break-word;
  line-height: 1.55;
}

.contact-card__note {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
}

.contact-card__highlight {
  font-family: var(--font-data);
  font-size: 14px;
  color: var(--data);
}

/* ---------- Support System / Network ---------- */
.contact-network {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
  margin-bottom: clamp(64px, 10vw, 110px);
}

.contact-network__figure {
  position: relative;
  margin: 0;
  padding: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
}

.contact-network__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
  border-radius: 16px;
}

.contact-network__figure::before {
  content: "NETWORK-01 / 支持网络";
  position: absolute;
  top: 22px;
  left: 22px;
  z-index: 1;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--accent);
  background: rgba(10, 25, 47, .82);
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid rgba(255, 107, 0, .3);
}

.contact-network__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 58%, rgba(255, 107, 0, .18) 100%);
  border-radius: 24px;
  pointer-events: none;
}

.contact-network__content {
  padding: 0 2px;
}

.contact-network__content h2 {
  font-size: clamp(26px, 3.2vw, 44px);
  margin: 10px 0 14px;
}

.contact-network__content > p {
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 28px;
  max-width: 520px;
}

.contact-network__list {
  list-style: none;
  margin: 0 0 30px;
  padding: 0;
  border-top: 1px solid var(--border);
}

.contact-network__list li {
  display: flex;
  gap: 16px;
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
}

.contact-network__idx {
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--accent);
  padding-top: 3px;
  min-width: 22px;
}

.contact-network__list strong {
  display: block;
  font-family: var(--font-display);
  font-size: 16px;
  margin-bottom: 4px;
}

.contact-network__list p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

/* ---------- Response Time ---------- */
.contact-response {
  margin-bottom: clamp(64px, 10vw, 110px);
}

.contact-response__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  overflow: hidden;
}

.contact-response__media {
  position: relative;
  min-height: 200px;
  background: var(--bg-card-soft);
}

.contact-response__media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
}

.contact-response__stamp {
  position: absolute;
  right: 18px;
  bottom: 18px;
  background: rgba(10, 25, 47, .88);
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 10px 16px;
  border-radius: 14px;
  font-family: var(--font-data);
  font-size: 14px;
  line-height: 1.35;
  text-align: center;
  letter-spacing: .08em;
}

.contact-response__content {
  padding: 30px 24px 34px;
}

.contact-response__content h2 {
  font-size: clamp(24px, 3vw, 38px);
  margin: 10px 0 12px;
}

.contact-response__content > p {
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: 26px;
  max-width: 440px;
}

.contact-response__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.contact-response__stat {
  flex: 1 1 130px;
  background: var(--bg);
  border: 1px dashed var(--border);
  border-radius: 14px;
  padding: 16px 18px;
}

.contact-response__num {
  display: block;
  font-family: var(--font-data);
  font-size: 30px;
  color: var(--data);
  margin-bottom: 6px;
}

.contact-response__label {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.45;
}

/* ---------- Quick Help ---------- */
.contact-help {
  margin-bottom: 20px;
}

.contact-help__card {
  display: flex;
  flex-direction: column;
  gap: 26px;
  background: linear-gradient(135deg, rgba(255, 107, 0, .12), rgba(0, 201, 167, .06));
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: clamp(28px, 5vw, 44px);
  position: relative;
}

.contact-help__card::after {
  content: "FAQ";
  position: absolute;
  top: 20px;
  right: 22px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .24em;
  color: var(--accent);
  border: 1px solid rgba(255, 107, 0, .4);
  border-radius: 999px;
  padding: 4px 10px;
  background: rgba(10, 25, 47, .4);
}

.contact-help__text h2 {
  font-size: clamp(24px, 3vw, 36px);
  margin: 10px 0 10px;
  max-width: 520px;
}

.contact-help__text p {
  color: var(--muted);
  line-height: 1.75;
  max-width: 560px;
}

.contact-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Buttons ---------- */
.page-contact .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 26px;
  border-radius: 12px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
}

.page-contact .btn-primary {
  background: var(--accent);
  color: var(--bg);
  box-shadow: 0 6px 20px rgba(255, 107, 0, .24);
}

.page-contact .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(255, 107, 0, .32);
}

.page-contact .btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.page-contact .btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ---------- Tablet ---------- */
@media (min-width: 768px) {
  .page-contact {
    padding-top: 48px;
  }

  .contact-hero__body {
    padding-top: 56px;
  }

  .contact-channels__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
  }

  .contact-card--address {
    grid-column: 1 / -1;
  }

  .contact-network {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: clamp(32px, 5vw, 64px);
  }

  .contact-response__inner {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
  }

  .contact-response__content {
    padding: 40px 36px;
  }

  .contact-help__card {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .contact-help__actions {
    min-width: 280px;
    justify-content: flex-end;
  }
}

/* ---------- Desktop ---------- */
@media (min-width: 1080px) {
  .contact-channels__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 34px;
    align-items: start;
  }

  .contact-card--email {
    grid-column: 1 / 7;
    transform: rotate(-.8deg) translateY(36px);
  }

  .contact-card--phone {
    grid-column: 7 / 13;
    transform: rotate(.85deg) translateY(0);
  }

  .contact-card--address {
    grid-column: 3 / 11;
    transform: rotate(-.45deg) translateY(20px);
  }

  .contact-card:hover {
    transform: rotate(0deg) translateY(-4px);
    border-color: var(--muted);
  }

  .contact-response__content {
    padding: 48px 44px;
  }
}