.page-contact {
  --pc-line: 1px solid var(--abyss-700);
  --pc-pad: clamp(20px, 3vw, 34px);
  --pc-edge: clamp(20px, 6vw, 90px);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 3.6vw, 40px) 0 clamp(48px, 7vw, 96px);
  background:
    radial-gradient(120% 80% at 82% 6%, rgba(22, 48, 79, 0.72) 0%, rgba(5, 8, 15, 0) 62%),
    linear-gradient(180deg, var(--abyss-950) 0%, var(--abyss-900) 100%);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  z-index: 0;
  top: -22%;
  right: -14%;
  width: min(700px, 82%);
  height: 152%;
  background: linear-gradient(152deg, rgba(22, 48, 79, 0.9) 0%, rgba(16, 32, 58, 0.28) 48%, rgba(5, 8, 15, 0) 74%);
  clip-path: polygon(28% 0%, 100% 0%, 100% 100%, 0% 100%);
  pointer-events: none;
}

.page-contact .contact-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4vw, 56px);
  align-items: end;
  margin-top: clamp(22px, 3vw, 40px);
}

.page-contact .contact-hero__intro h1 {
  margin: 0 0 0.55em;
  font-size: clamp(2rem, 4.6vw, 3.4rem);
  line-height: 1.14;
  font-weight: 900;
  letter-spacing: -0.01em;
  max-width: 15em;
}

.page-contact .contact-hero__intro .eyebrow {
  display: block;
  margin: 0 0 16px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--coral-500);
}

.page-contact .contact-hero__intro .lead {
  max-width: 34em;
  margin: 0;
  font-size: clamp(0.98rem, 1.6vw, 1.06rem);
  line-height: 1.78;
  color: var(--ink-300);
}

.page-contact .hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(18px, 3.4vw, 46px);
  margin: clamp(26px, 3.4vw, 40px) 0 0;
  padding-top: clamp(16px, 2vw, 24px);
  border-top: var(--pc-line);
}

.page-contact .hero-fact dt {
  margin: 0;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--ink-300);
}

.page-contact .hero-fact dd {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(0.88rem, 1.6vw, 1rem);
  letter-spacing: 0.1em;
  color: var(--paper-100);
}

.page-contact .contact-hero__figure {
  margin: 0;
}

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

.page-contact .contact-hero__figure .frame-cap {
  margin-top: 10px;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--ink-300);
}

/* ---------- 通用章节 ---------- */

.page-contact .section {
  padding: clamp(56px, 8vw, 106px) 0;
}

.page-contact .section--tight {
  padding: clamp(46px, 6vw, 82px) 0;
}

.page-contact .section-head {
  max-width: 58em;
  margin-bottom: clamp(30px, 4vw, 54px);
}

.page-contact .section-index {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(2.2rem, 5.6vw, 3.8rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.04em;
  color: transparent;
  -webkit-text-stroke: 1px var(--abyss-700);
  margin-bottom: 14px;
}

@supports not (-webkit-text-stroke: 1px black) {
  .page-contact .section-index {
    color: var(--abyss-700);
  }
}

.page-contact .section-head h2 {
  margin: 0 0 12px;
  font-size: clamp(1.5rem, 3.2vw, 2.2rem);
  font-weight: 800;
  line-height: 1.24;
  color: var(--ink-050);
}

.page-contact .section-sub {
  max-width: 36em;
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.76;
  color: var(--ink-300);
}

.page-contact .block-title {
  margin: 0 0 14px;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--ink-050);
}

.page-contact .block-title + p {
  margin-top: 0;
}

.page-contact .dim {
  color: var(--ink-300);
  font-size: 0.9rem;
  line-height: 1.72;
}

/* ---------- 01 联络渠道面板 ---------- */

.page-contact .channel-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 3.4vw, 42px);
  align-items: start;
}

.page-contact .channel-panel {
  position: relative;
  padding: var(--pc-pad);
  border: var(--pc-line);
  background: linear-gradient(180deg, rgba(16, 32, 58, 0.68) 0%, rgba(10, 18, 32, 0.94) 100%);
}

.page-contact .panel-stamp {
  position: absolute;
  top: -11px;
  left: var(--pc-pad);
  padding: 3px 10px;
  background: var(--paper-100);
  color: var(--abyss-950);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.22em;
}

.page-contact .channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .channel-item {
  padding: 22px 0;
  border-bottom: var(--pc-line);
}

.page-contact .channel-item:first-child {
  padding-top: 10px;
}

.page-contact .channel-item:last-child {
  padding-bottom: 6px;
  border-bottom: 0;
}

.page-contact .channel-key {
  display: inline-block;
  margin-bottom: 12px;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--coral-500);
}

.page-contact .channel-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 3vw, 1.34rem);
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.45;
  color: var(--ink-050);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .channel-value--mail {
  color: var(--paper-100);
}

.page-contact .channel-value--tel {
  font-size: clamp(1.32rem, 4vw, 1.95rem);
  letter-spacing: 0.14em;
}

.page-contact .channel-value--addr {
  font-family: var(--font-sans);
  font-size: clamp(0.95rem, 2.2vw, 1.1rem);
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 1.7;
}

.page-contact .channel-note {
  max-width: 36em;
  margin: 12px 0 0;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--ink-300);
}

.page-contact .channel-guide {
  padding: var(--pc-pad);
  border-left: 2px solid var(--coral-500);
  background: rgba(16, 32, 58, 0.5);
}

.page-contact .guide-title {
  margin: 0 0 22px;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--ink-050);
}

.page-contact .guide-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-contact .guide-item {
  display: grid;
  grid-template-columns: 4.6em minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.page-contact .guide-tag {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--celadon-400);
}

.page-contact .guide-item p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.74;
  color: var(--ink-300);
}

/* ---------- 02 来信格式与覆盖确认 ---------- */

.page-contact .mail-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(34px, 4.4vw, 62px);
}

.page-contact .mail-format p {
  margin: 0 0 14px;
  font-size: 0.96rem;
  line-height: 1.76;
  color: var(--ink-300);
}

.page-contact .mail-format .block-title:not(:first-child) {
  margin-top: 32px;
}

.page-contact .mail-subject {
  display: inline-block;
  margin: 4px 0 16px;
  padding: 11px 18px;
  border: 1px solid var(--abyss-700);
  background: var(--paper-100);
  color: var(--abyss-950);
  font-family: var(--font-mono);
  font-size: clamp(0.98rem, 2.4vw, 1.16rem);
  font-weight: 600;
  letter-spacing: 0.1em;
}

.page-contact .plain-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 13px;
}

.page-contact .plain-list li {
  position: relative;
  padding-left: 22px;
  font-size: 0.94rem;
  line-height: 1.74;
  color: var(--ink-300);
}

.page-contact .plain-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 10px;
  height: 1px;
  background: var(--celadon-400);
}

.page-contact .coverage-steps {
  position: relative;
  padding-left: 28px;
}

.page-contact .coverage-steps::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 64px;
  bottom: 20px;
  border-left: 1px dashed var(--abyss-700);
}

.page-contact .coverage-steps .block-title {
  margin-bottom: 10px;
}

.page-contact .step {
  position: relative;
  border-bottom: var(--pc-line);
}

.page-contact .step:last-child {
  border-bottom: 0;
}

.page-contact .step::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 24px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  border: 1px solid var(--celadon-400);
  background: var(--abyss-900);
}

.page-contact .step-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: baseline;
  padding: 19px 0;
  cursor: pointer;
  list-style: none;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--ink-050);
}

.page-contact .step-head::-webkit-details-marker {
  display: none;
}

.page-contact .step-head::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--coral-500);
}

.page-contact .step[open] .step-head::after {
  content: "−";
}

.page-contact .step-head:focus-visible {
  outline: 2px solid var(--coral-500);
  outline-offset: 3px;
}

.page-contact .step-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--ink-300);
}

.page-contact .step-title {
  display: block;
}

.page-contact .step-body {
  padding: 0 0 22px 34px;
}

.page-contact .step-body p {
  max-width: 40em;
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--ink-300);
}

/* ---------- 03 在线时段说明 ---------- */

.page-contact .hours-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4vw, 56px);
  align-items: center;
}

.page-contact .scale {
  list-style: none;
  margin: 0 0 clamp(26px, 3.4vw, 40px);
  padding: 0;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(0, 1fr);
  gap: 0;
  position: relative;
}

.page-contact .scale::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 9px;
  height: 2px;
  background: linear-gradient(90deg, var(--celadon-600) 0%, var(--celadon-400) 100%);
  opacity: 0.75;
}

.page-contact .scale-item {
  position: relative;
  padding-top: 28px;
  padding-right: 10px;
}

.page-contact .scale-item:focus-visible {
  outline: 2px solid var(--coral-500);
  outline-offset: 4px;
}

.page-contact .scale-mark {
  position: absolute;
  top: 4px;
  left: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--abyss-900);
  border: 2px solid var(--celadon-400);
  transition: border-color 240ms var(--ease), transform 240ms var(--ease);
}

.page-contact .scale-time {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 2.2vw, 1.06rem);
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--paper-100);
  transition: color 240ms var(--ease);
}

.page-contact .scale-note {
  display: block;
  max-width: 13em;
  margin-top: 8px;
  font-size: 0.76rem;
  line-height: 1.5;
  color: var(--ink-300);
  opacity: 0.6;
  transition: opacity 240ms var(--ease), color 240ms var(--ease);
}

.page-contact .scale-item:hover .scale-mark,
.page-contact .scale-item:focus-within .scale-mark {
  border-color: var(--coral-500);
  transform: scale(1.15);
}

.page-contact .scale-item:hover .scale-time,
.page-contact .scale-item:focus-within .scale-time {
  color: var(--coral-500);
}

.page-contact .scale-item:hover .scale-note,
.page-contact .scale-item:focus-within .scale-note {
  opacity: 1;
  color: var(--ink-050);
}

.page-contact .hours-notes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 15px;
  max-width: 42em;
}

.page-contact .hours-notes li {
  position: relative;
  padding-left: 20px;
  font-size: 0.94rem;
  line-height: 1.76;
  color: var(--ink-300);
}

.page-contact .hours-notes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  background: var(--coral-500);
}

.page-contact .hours-figure {
  margin: 0;
}

.page-contact .hours-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .hours-figure .frame-cap {
  margin-top: 10px;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--ink-300);
}

/* ---------- 04 自助入口 ---------- */

.page-contact .help-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--abyss-700);
  border: var(--pc-line);
}

.page-contact .help-link {
  display: block;
  padding: clamp(20px, 2.6vw, 32px);
  background: var(--abyss-900);
  text-decoration: none;
  transition: background 260ms var(--ease);
}

.page-contact .help-link:hover {
  background: var(--abyss-800);
}

.page-contact .help-link:focus-visible {
  outline: 2px solid var(--coral-500);
  outline-offset: -2px;
}

.page-contact .help-link__index {
  display: block;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--coral-500);
}

.page-contact .help-link__title {
  display: block;
  margin-bottom: 10px;
  font-size: 1.04rem;
  font-weight: 700;
  color: var(--ink-050);
}

.page-contact .help-link__desc {
  display: block;
  font-size: 0.89rem;
  line-height: 1.7;
  color: var(--ink-300);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-contact .help-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  }

  .page-contact .hours-split {
    grid-template-columns: minmax(0, 1.16fr) minmax(0, 0.84fr);
  }
}

@media (min-width: 960px) {
  .page-contact .channel-split {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  }

  .page-contact .mail-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.18fr);
  }
}

@media (min-width: 1100px) {
  .page-contact .help-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 619px) {
  .page-contact .scale {
    grid-auto-flow: row;
    grid-auto-columns: auto;
    gap: 18px;
  }

  .page-contact .scale::before {
    display: none;
  }

  .page-contact .scale-item {
    padding-top: 0;
    padding-left: 26px;
    padding-right: 0;
  }

  .page-contact .scale-mark {
    top: 3px;
    left: 0;
  }

  .page-contact .scale-note {
    max-width: none;
    opacity: 0.85;
  }

  .page-contact .guide-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .page-contact .step-body {
    padding-left: 0;
  }

  .page-contact .coverage-steps::before {
    top: 60px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .scale-mark,
  .page-contact .scale-time,
  .page-contact .scale-note,
  .page-contact .help-link {
    transition: none;
  }

  .page-contact .scale-item:hover .scale-mark,
  .page-contact .scale-item:focus-within .scale-mark {
    transform: none;
  }

  .page-contact .contact-hero::before {
    background: linear-gradient(152deg, rgba(22, 48, 79, 0.72) 0%, rgba(16, 32, 58, 0.22) 48%, rgba(5, 8, 15, 0) 74%);
  }
}
<<<END>>>