/* ==========================================================
   page-contact · 联系入口
   作用域：.page-contact
   ========================================================== */

.page-contact {
  --pc-line: rgba(143, 163, 191, .26);
  --pc-line-strong: rgba(143, 163, 191, .46);
  --pc-gap: clamp(18px, 3.2vw, 32px);
}

.page-contact img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-contact .section {
  padding-block: clamp(42px, 7vw, 88px);
}

.page-contact .section-head {
  max-width: 760px;
}

.page-contact .section-title {
  margin: 10px 0 12px;
}

.page-contact .section-sub {
  margin: 0;
}

/* ---------- 面包屑 ---------- */

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  margin: 0 0 clamp(20px, 4vw, 38px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-mist);
}

.page-contact .breadcrumb a {
  color: var(--c-mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .3s var(--ease-out), border-color .3s var(--ease-out);
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--c-lime);
  border-bottom-color: var(--c-lime);
}

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

.page-contact .breadcrumb-sep {
  color: rgba(143, 163, 191, .5);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  padding: clamp(26px, 5vw, 54px) 0 clamp(20px, 4vw, 40px);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -34%;
  right: -18%;
  width: min(680px, 78vw);
  height: min(680px, 78vw);
  border-radius: 50%;
  background: radial-gradient(circle at 42% 42%, rgba(123, 77, 255, .40), rgba(123, 77, 255, 0) 68%);
  pointer-events: none;
  z-index: 0;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: min(320px, 46vw);
  height: 2px;
  background: linear-gradient(90deg, var(--c-lime), rgba(198, 255, 61, 0));
  z-index: 0;
}

.page-contact .hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(18px, 3vw, 32px);
  align-items: end;
}

.page-contact .hero-title {
  margin: 14px 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 8vw, 78px);
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--c-paper);
  max-width: 16em;
}

.page-contact .hero-copy .lede {
  max-width: 40em;
  margin: 0;
  color: rgba(246, 241, 228, .78);
}

.page-contact .hero-meta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 24px 0 0;
  padding: 8px 16px;
  border-radius: var(--r-pill);
  border: 1px solid var(--pc-line);
  background: rgba(22, 48, 90, .62);
  color: var(--c-mint);
  font-size: 12px;
  letter-spacing: .06em;
}

.page-contact .hero-meta .pulse-dot {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-orange);
  animation: pc-pulse 2.4s ease-out infinite;
}

@keyframes pc-pulse {
  0% { box-shadow: 0 0 0 0 rgba(255, 138, 61, .55); }
  70% { box-shadow: 0 0 0 12px rgba(255, 138, 61, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 138, 61, 0); }
}

.page-contact .hero-annotation {
  display: none;
  margin: 0;
}

/* ---------- 三个对接入口 ---------- */

.page-contact .entry-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  margin-top: clamp(26px, 4.5vw, 48px);
}

.page-contact .entry-card {
  --accent: var(--c-lime);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(20px, 2.8vw, 30px);
  border: 1px solid var(--pc-line);
  border-radius: var(--r-lg);
  background: linear-gradient(158deg, rgba(22, 48, 90, .88), rgba(10, 26, 47, .94));
  color: var(--c-paper);
  text-decoration: none;
  overflow: hidden;
  transition: transform .4s var(--ease-out), border-color .4s var(--ease-out), box-shadow .4s var(--ease-out);
}

.page-contact .entry-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: var(--accent);
}

.page-contact .entry-card::after {
  content: "";
  position: absolute;
  right: -50px;
  bottom: -70px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(143, 163, 191, .18), rgba(143, 163, 191, 0) 70%);
  pointer-events: none;
}

.page-contact .entry-card[data-tone="orange"] { --accent: var(--c-orange); }
.page-contact .entry-card[data-tone="violet"] { --accent: var(--c-violet); }
.page-contact .entry-card[data-tone="lime"] { --accent: var(--c-lime); }

.page-contact .entry-card:hover,
.page-contact .entry-card:focus-visible {
  transform: translateY(-5px);
  border-color: var(--accent);
}

.page-contact .entry-tag {
  align-self: flex-start;
  padding: 5px 14px;
  border-radius: var(--r-pill);
  border: 1px solid var(--accent);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
}

.page-contact .entry-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.4vw, 25px);
  font-weight: 800;
  line-height: 1.35;
}

.page-contact .entry-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(246, 241, 228, .76);
}

.page-contact .entry-hint {
  margin-top: auto;
  padding-top: 6px;
  color: var(--accent);
  font-size: 12px;
  letter-spacing: .06em;
}

/* ---------- 客服邮箱与电话 ---------- */

.page-contact .channels-panel {
  position: relative;
  padding: clamp(24px, 4vw, 56px);
  border-radius: var(--r-xl);
  background: var(--c-paper);
  color: var(--c-brown);
  overflow: hidden;
}

.page-contact .channels-panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 6px;
  background: linear-gradient(90deg, var(--c-lime), var(--c-violet) 52%, var(--c-orange));
}

.page-contact .channels-panel .eyebrow {
  color: var(--c-violet);
  border-color: rgba(123, 77, 255, .42);
  background: rgba(123, 77, 255, .08);
}

.page-contact .channels-panel .section-title {
  color: var(--c-brown);
}

.page-contact .channels-panel .section-sub {
  color: rgba(36, 28, 23, .72);
}

.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3.4vw, 40px);
  margin-top: clamp(24px, 4vw, 42px);
}

.page-contact .channel-card {
  padding-left: 18px;
  border-left: 3px solid var(--c-violet);
}

.page-contact .channel-card:last-child {
  border-left-color: var(--c-orange);
}

.page-contact .channel-label {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .12em;
  color: rgba(36, 28, 23, .58);
}

.page-contact .channel-value {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(16px, 2.6vw, 23px);
  line-height: 1.35;
  letter-spacing: .01em;
  color: var(--c-brown);
  word-break: break-all;
}

.page-contact .channel-note {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(36, 28, 23, .76);
}

.page-contact .rhythm {
  margin: clamp(24px, 4vw, 40px) 0 0;
  border-top: 1px solid rgba(36, 28, 23, .16);
}

.page-contact .rhythm-row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(36, 28, 23, .16);
}

.page-contact .rhythm dt {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--c-violet);
}

.page-contact .rhythm dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(36, 28, 23, .78);
}

.page-contact .channel-media {
  margin: clamp(24px, 4vw, 40px) 0 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(140deg, var(--c-ink), var(--c-ink-2));
}

.page-contact .channel-media img {
  width: 100%;
  object-fit: cover;
}

/* ---------- 合作方向 ---------- */

.page-contact .partner-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  margin-top: clamp(26px, 4.5vw, 48px);
}

.page-contact .partner-card {
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid var(--pc-line);
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(123, 77, 255, .18), rgba(10, 26, 47, 0) 78%);
  transition: border-color .4s var(--ease-out), transform .4s var(--ease-out);
}

.page-contact .partner-card:hover {
  transform: translateY(-4px);
  border-color: rgba(123, 77, 255, .62);
}

.page-contact .partner-index {
  margin: 0 0 14px;
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--c-violet);
}

.page-contact .partner-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.2vw, 23px);
  font-weight: 800;
  color: var(--c-paper);
}

.page-contact .partner-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(246, 241, 228, .76);
}

.page-contact .prep-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .prep-chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 20px;
  border-radius: var(--r-pill);
  border: 1px dashed rgba(198, 255, 61, .55);
  background: rgba(198, 255, 61, .1);
  color: var(--c-lime);
  font-size: 14.5px;
  font-weight: 700;
}

.page-contact .prep-chip .mono {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .06em;
  color: var(--c-mint);
  opacity: .82;
}

/* ---------- 对接流程 ---------- */

.page-contact .flow-media {
  margin: clamp(26px, 4.5vw, 46px) 0 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(140deg, var(--c-ink-2), var(--c-ink));
}

.page-contact .flow-media img {
  width: 100%;
  object-fit: cover;
}

.page-contact .flow-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin: clamp(26px, 4.5vw, 48px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .flow-step {
  position: relative;
  padding-left: 52px;
}

.page-contact .flow-num {
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid var(--c-lime);
  background: rgba(198, 255, 61, .1);
  color: var(--c-lime);
  font-size: 14px;
  font-weight: 700;
}

.page-contact .flow-step::after {
  content: "";
  position: absolute;
  top: 17px;
  left: 36px;
  right: -32px;
  height: 2px;
  background: linear-gradient(90deg, rgba(198, 255, 61, .58), rgba(198, 255, 61, .1));
}

.page-contact .flow-step:last-child::after {
  display: none;
}

.page-contact .flow-step h3 {
  margin: 6px 0 8px;
  font-family: var(--font-display);
  font-size: clamp(17px, 2.1vw, 21px);
  font-weight: 800;
  color: var(--c-paper);
}

.page-contact .flow-step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(246, 241, 228, .74);
}

/* ---------- 地址与来访 ---------- */

.page-contact .visit-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  align-items: center;
}

.page-contact .visit-copy .section-title {
  margin: 10px 0 18px;
}

.page-contact .visit-address {
  margin: 0 0 16px;
  padding: 16px 20px;
  border-radius: var(--r-lg);
  border-left: 4px solid var(--c-orange);
  background: rgba(22, 48, 90, .72);
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.9vw, 17px);
  line-height: 1.6;
  letter-spacing: .02em;
  color: var(--c-paper);
}

.page-contact .visit-note {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(246, 241, 228, .76);
}

.page-contact .visit-map {
  padding: clamp(16px, 2.4vw, 26px);
  border: 1px solid var(--pc-line);
  border-radius: var(--r-lg);
  background: linear-gradient(150deg, rgba(22, 48, 90, .7), rgba(10, 26, 47, .9));
}

.page-contact .visit-map svg {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 常见对接问题 ---------- */

.page-contact .faq-list {
  display: grid;
  gap: 12px;
  margin-top: clamp(24px, 4vw, 42px);
}

.page-contact .faq-item {
  border: 1px solid var(--pc-line);
  border-radius: var(--r-lg);
  background: rgba(22, 48, 90, .5);
  overflow: hidden;
  transition: border-color .35s var(--ease-out), background .35s var(--ease-out);
}

.page-contact .faq-item[open] {
  border-color: rgba(198, 255, 61, .5);
  background: rgba(22, 48, 90, .78);
}

.page-contact .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px clamp(18px, 2.4vw, 26px);
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: clamp(15px, 1.8vw, 17px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--c-paper);
}

.page-contact .faq-item summary::-webkit-details-marker {
  display: none;
}

.page-contact .faq-item summary:focus-visible {
  outline: 2px solid var(--c-orange);
  outline-offset: -2px;
}

.page-contact .faq-mark {
  flex: none;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  border-radius: 50%;
  border: 1px solid var(--c-lime);
  color: var(--c-lime);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  line-height: 1;
  transition: transform .32s var(--ease-out), background .32s var(--ease-out), color .32s var(--ease-out);
}

.page-contact .faq-item[open] .faq-mark {
  transform: rotate(45deg);
  background: var(--c-lime);
  color: var(--c-ink);
}

.page-contact .faq-body {
  padding: 0 clamp(18px, 2.4vw, 26px) 20px;
  padding-left: calc(clamp(18px, 2.4vw, 26px) + 36px);
}

.page-contact .faq-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(246, 241, 228, .78);
}

/* ---------- 收尾 ---------- */

.page-contact .contact-outro {
  display: grid;
  gap: 18px;
  margin-top: clamp(30px, 5vw, 54px);
  padding: clamp(22px, 3.4vw, 36px);
  border-radius: var(--r-lg);
  border: 1px dashed var(--pc-line-strong);
  background: linear-gradient(120deg, rgba(123, 77, 255, .16), rgba(198, 255, 61, .08));
}

.page-contact .contact-outro-text {
  margin: 0;
  font-size: clamp(15px, 1.9vw, 18px);
  line-height: 1.7;
  color: var(--c-paper);
}

.page-contact .contact-outro-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ==========================================================
   断点
   ========================================================== */

@media (min-width: 640px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

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

  .page-contact .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .rhythm-row {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 22px;
    align-items: baseline;
  }

  .page-contact .contact-outro {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-contact .hero-annotation {
    display: block;
    justify-self: end;
    align-self: center;
    writing-mode: vertical-rl;
    font-size: 12px;
    letter-spacing: .5em;
    color: var(--c-mist);
    text-transform: uppercase;
  }

  .page-contact .visit-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

@media (min-width: 880px) {
  .page-contact .flow-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 32px;
  }

  .page-contact .flow-step {
    padding-left: 0;
    padding-top: 56px;
  }

  .page-contact .flow-step::after {
    top: 17px;
    left: 36px;
    right: -32px;
    bottom: auto;
    width: auto;
    height: 2px;
  }
}

@media (max-width: 879.98px) {
  .page-contact .flow-step::after {
    top: 40px;
    left: 17px;
    right: auto;
    bottom: -26px;
    width: 2px;
    height: auto;
    background: linear-gradient(180deg, rgba(198, 255, 61, .5), rgba(198, 255, 61, 0));
  }
}

@media (max-width: 479.98px) {
  .page-contact .channel-value {
    font-size: 15px;
  }

  .page-contact .faq-body {
    padding-left: clamp(18px, 2.4vw, 26px);
  }

  .page-contact .entry-hint {
    font-size: 11.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .hero-meta .pulse-dot {
    animation: none;
  }

  .page-contact .entry-card,
  .page-contact .partner-card,
  .page-contact .faq-mark {
    transition: none;
  }
}