.page-contact {
  --co-gap: clamp(16px, 2.6vw, 26px);
  --co-pad: clamp(22px, 3.2vw, 38px);
  --co-border: var(--blueprint-line);
  position: relative;
  overflow-x: clip;
  padding-bottom: clamp(40px, 7vw, 88px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--deep);
  padding: clamp(10px, 2vw, 18px) 0 clamp(44px, 7vw, 88px);
  border-bottom-left-radius: clamp(28px, 5vw, 56px);
}

.page-contact .contact-hero-bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
  filter: saturate(0.85);
}

.page-contact .contact-hero-veil {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(70% 90% at 18% 0%, rgba(53, 230, 224, 0.16), transparent 62%),
    linear-gradient(115deg, var(--deep) 0%, rgba(7, 28, 47, 0.88) 46%, rgba(11, 42, 36, 0.92) 100%);
}

.page-contact .contact-crumbs {
  padding-top: 6px;
}

.page-contact .contact-crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--mist);
}

.page-contact .contact-crumbs li + li::before {
  content: "/";
  margin-right: 10px;
  color: var(--blueprint-line);
}

.page-contact .contact-crumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-contact .contact-crumbs a:hover {
  color: var(--cyan);
  border-bottom-color: rgba(53, 230, 224, 0.5);
}

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

.page-contact .hero-plate {
  position: relative;
  margin-top: clamp(20px, 4vw, 38px);
  padding: var(--co-pad);
  border: 1px solid rgba(53, 230, 224, 0.26);
  border-radius: var(--radius-panel);
  background: linear-gradient(158deg, rgba(14, 23, 32, 0.94) 0%, rgba(11, 42, 36, 0.88) 60%, rgba(7, 28, 47, 0.92) 100%);
  box-shadow: 0 34px 80px -56px rgba(0, 0, 0, 0.92);
  overflow: hidden;
}

.page-contact .hero-plate::after {
  content: "";
  position: absolute;
  right: -16%;
  top: -34%;
  width: 44%;
  height: 168%;
  border-radius: 50%;
  transform: rotate(12deg);
  background: linear-gradient(200deg, rgba(53, 230, 224, 0.16), transparent 70%);
  pointer-events: none;
}

.page-contact .hero-plate .kicker {
  position: relative;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.2em;
  color: var(--sand);
}

.page-contact .hero-plate h1 {
  position: relative;
  margin: 14px 0 0;
  max-width: 17em;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(1.7rem, 5.2vw, 3.05rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ice);
}

.page-contact .hero-lead {
  position: relative;
  margin: 18px 0 0;
  max-width: 44em;
  color: var(--mist);
  font-size: clamp(0.94rem, 1.9vw, 1.04rem);
  line-height: 1.85;
}

.page-contact .hero-chip-row {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .hero-chip-row .chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--co-border);
  background: rgba(7, 28, 47, 0.66);
  color: var(--ice);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.page-contact .hero-chip-row .chip--cyan {
  border-color: rgba(53, 230, 224, 0.58);
  color: var(--cyan);
}

.page-contact .hero-chip-row .chip--state {
  border-color: rgba(91, 228, 155, 0.5);
  color: var(--state-green);
}

.page-contact .status-dot {
  display: inline-block;
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--state-green);
  box-shadow: 0 0 0 4px rgba(91, 228, 155, 0.16);
}

/* ---------- 章节通用 ---------- */
.page-contact .contact-section {
  padding-block-start: clamp(42px, 7vw, 80px);
}

.page-contact .contact-head {
  display: flex;
  align-items: flex-start;
  gap: clamp(14px, 2.4vw, 26px);
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-contact .contact-head .sec-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(1.45rem, 4vw, 2.35rem);
  line-height: 1;
  color: var(--cyan);
  opacity: 0.85;
}

.page-contact .contact-head .kicker {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--sand);
}

.page-contact .contact-head h2 {
  margin: 0;
  font-size: clamp(1.2rem, 3.4vw, 1.85rem);
  font-weight: 800;
  line-height: 1.32;
  color: var(--ice);
}

/* ---------- 三张联系卡 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--co-gap);
}

.page-contact .channel-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: var(--co-pad);
  border: 1px solid var(--co-border);
  border-radius: var(--radius-panel);
  background: linear-gradient(168deg, rgba(14, 23, 32, 0.95), rgba(7, 28, 47, 0.9));
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease);
}

.page-contact .channel-card:hover {
  transform: translateY(-4px);
  border-color: var(--cyan);
}

.page-contact .channel-card--mail {
  border-color: rgba(255, 107, 74, 0.55);
  background:
    radial-gradient(130% 130% at 100% 0%, rgba(255, 107, 74, 0.16), transparent 60%),
    linear-gradient(168deg, rgba(14, 23, 32, 0.97), rgba(7, 28, 47, 0.9));
}

.page-contact .channel-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.71rem;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-contact .channel-card--mail .channel-label {
  color: var(--coral);
}

.page-contact .channel-value {
  margin: 0;
  font-size: clamp(1rem, 2.4vw, 1.2rem);
  font-weight: 700;
  line-height: 1.45;
  color: var(--ice);
  overflow-wrap: anywhere;
}

.page-contact .channel-card--mail .channel-value {
  padding-bottom: 8px;
  border-bottom: 1px dashed rgba(255, 107, 74, 0.5);
}

.page-contact .channel-value--mono {
  font-family: var(--font-mono);
  font-size: clamp(1.1rem, 2.8vw, 1.42rem);
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-contact .channel-value--sm {
  font-size: clamp(0.95rem, 2vw, 1.06rem);
  line-height: 1.6;
}

.page-contact .channel-note {
  margin: 0;
  color: var(--mist);
  font-size: 0.9rem;
  line-height: 1.8;
}

/* ---------- 邮件场景 + 侧栏 ---------- */
.page-contact .guide-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--co-gap);
}

.page-contact .qa-card,
.page-contact .coop-card {
  padding: var(--co-pad);
  border: 1px solid var(--co-border);
  border-radius: var(--radius-panel);
  background: rgba(14, 23, 32, 0.74);
}

.page-contact .coop-card {
  margin-top: var(--co-gap);
  background: linear-gradient(160deg, rgba(11, 42, 36, 0.84), rgba(7, 28, 47, 0.9));
}

.page-contact .qa-card h3,
.page-contact .coop-card h3 {
  margin: 0 0 16px;
  font-size: clamp(1.02rem, 2.4vw, 1.22rem);
  font-weight: 800;
  line-height: 1.45;
  color: var(--ice);
}

.page-contact .qa-list,
.page-contact .coop-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-contact .qa-list li {
  position: relative;
  padding-left: 20px;
  color: var(--mist);
  font-size: 0.92rem;
  line-height: 1.8;
}

.page-contact .qa-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-contact .coop-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  color: var(--mist);
  font-size: 0.92rem;
  line-height: 1.8;
}

.page-contact .coop-idx {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--sand);
  padding-top: 0.14em;
}

.page-contact .qa-link {
  margin: 18px 0 0;
  font-size: 0.9rem;
}

.page-contact .qa-link a,
.page-contact .contact-tail a,
.page-contact .to-top a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 224, 0.32);
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease);
}

.page-contact .qa-link a:hover,
.page-contact .contact-tail a:hover,
.page-contact .to-top a:hover {
  border-bottom-color: var(--cyan);
  color: var(--ice);
}

.page-contact .guide-aside {
  display: grid;
  gap: var(--co-gap);
  align-content: start;
}

.page-contact .aside-note {
  padding: clamp(18px, 2.6vw, 26px);
  border: 1px dashed rgba(43, 82, 99, 0.9);
  border-radius: var(--radius-card);
  background: rgba(7, 28, 47, 0.55);
}

.page-contact .aside-note-title {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .aside-note p:last-child {
  margin: 0;
  color: var(--mist);
  font-size: 0.88rem;
  line-height: 1.8;
}

/* ---------- 来信准备 ---------- */
.page-contact .prep-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--co-gap);
}

.page-contact .prep-figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--co-border);
  border-radius: var(--radius-panel);
  overflow: hidden;
  background: var(--pitch);
}

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

.page-contact .prep-caption {
  position: absolute;
  left: 16px;
  bottom: 16px;
  margin: 0;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: rgba(7, 28, 47, 0.84);
  border: 1px solid rgba(53, 230, 224, 0.36);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
}

.page-contact .check-card {
  padding: var(--co-pad);
  border: 1px solid var(--co-border);
  border-radius: var(--radius-panel);
  background: linear-gradient(160deg, rgba(14, 23, 32, 0.95), rgba(7, 28, 47, 0.88));
}

.page-contact .check-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: clamp(12px, 2vw, 18px);
}

.page-contact .check-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding-bottom: clamp(12px, 2vw, 16px);
  border-bottom: 1px dashed rgba(43, 82, 99, 0.65);
}

.page-contact .check-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .check-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
  padding-top: 0.16em;
}

.page-contact .check-text {
  color: var(--mist);
  font-size: 0.92rem;
  line-height: 1.8;
}

/* ---------- 服务时间 ---------- */
.page-contact .hours-bar {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 40px);
  padding: var(--co-pad);
  border: 1px solid var(--co-border);
  border-radius: var(--radius-panel);
  background:
    radial-gradient(90% 140% at 0% 0%, rgba(53, 230, 224, 0.14), transparent 62%),
    linear-gradient(120deg, rgba(11, 42, 36, 0.92), rgba(7, 28, 47, 0.92));
}

.page-contact .hours-clock .kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--sand);
}

.page-contact .hours-time {
  margin: 8px 0 4px;
  font-family: var(--font-mono);
  font-size: clamp(1.45rem, 4vw, 2.25rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ice);
}

.page-contact .hours-days {
  margin: 0;
  color: var(--mist);
  font-size: 0.84rem;
  letter-spacing: 0.05em;
}

.page-contact .hours-status {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
  color: var(--ice);
  font-size: 0.96rem;
  font-weight: 700;
}

.page-contact .hours-note {
  margin: 0;
  color: var(--mist);
  font-size: 0.91rem;
  line-height: 1.85;
}

/* ---------- 收束 ---------- */
.page-contact .contact-tail {
  max-width: 62em;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid rgba(43, 82, 99, 0.6);
  color: var(--mist);
  font-size: 0.9rem;
  line-height: 1.9;
}

.page-contact .to-top {
  margin: 20px 0 0;
}

.page-contact .to-top a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 900px) {
  .page-contact .channel-grid {
    grid-template-columns: 1.55fr 1fr 1fr;
    align-items: stretch;
  }

  .page-contact .guide-grid {
    grid-template-columns: 1.08fr 0.92fr;
    align-items: start;
  }

  .page-contact .prep-grid {
    grid-template-columns: 0.86fr 1.14fr;
    align-items: stretch;
  }

  .page-contact .hours-bar {
    grid-template-columns: 0.72fr 1.28fr;
    align-items: center;
  }

  .page-contact .prep-figure img {
    min-height: 320px;
  }
}

@media (max-width: 420px) {
  .page-contact .hero-chip-row .chip {
    font-size: 0.71rem;
    padding: 7px 13px;
  }

  .page-contact .channel-value--mono {
    font-size: 1.05rem;
  }
}
<<<END>>>