.page-contact {
  --pc-gap: clamp(18px, 3vw, 32px);
  --pc-cut: 24px;
}

.page-contact .section {
  padding-block: clamp(48px, 7vw, 92px);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(28px, 5vw, 64px) clamp(36px, 6vw, 76px);
  border-bottom: 1px solid var(--line);
  background-image:
    linear-gradient(180deg, rgba(47, 214, 196, 0.09), transparent 58%),
    repeating-linear-gradient(90deg, rgba(42, 53, 100, 0.5) 0 1px, transparent 1px 96px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 0 auto;
  width: min(220px, 26vw);
  background: repeating-linear-gradient(120deg, rgba(47, 214, 196, 0.16) 0 1px, transparent 1px 15px);
  opacity: 0.7;
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0.45;
}

.page-contact .hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
  align-items: center;
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5em;
  margin-bottom: 18px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-contact .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

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

.page-contact .crumb-sep {
  color: var(--line);
}

.page-contact .eyebrow {
  display: flex;
  align-items: center;
  gap: 0.7em;
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-contact .index-no {
  color: var(--cyan);
}

.page-contact .contact-hero h1 {
  margin: 0 0 18px;
  max-width: 22ch;
  font-family: var(--font-head);
  font-weight: 300;
  font-size: clamp(2rem, 5.2vw, 3.5rem);
  line-height: 1.16;
  letter-spacing: 0.03em;
  color: var(--white);
}

.page-contact .lede {
  max-width: 58ch;
  margin: 0;
  color: var(--text);
  line-height: 1.85;
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .hero-figure {
  margin: 0;
  position: relative;
  aspect-ratio: 7 / 5;
  overflow: hidden;
  background: var(--panel);
  clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 28px 100%, 0 calc(100% - 28px));
}

.page-contact .hero-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.06) brightness(0.82);
}

/* ---------- 联络渠道卡片 ---------- */

.page-contact .section-head {
  max-width: 64ch;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-contact .section-head h2 {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 300;
  font-size: clamp(1.5rem, 3.2vw, 2.3rem);
  line-height: 1.24;
  letter-spacing: 0.03em;
  color: var(--white);
}

.page-contact .section-head .lede {
  color: var(--muted);
  font-size: 0.96rem;
}

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

.page-contact .channel-card {
  --accent: var(--cyan);
  position: relative;
  padding: 1px;
  background: linear-gradient(155deg, var(--accent) 0%, rgba(42, 53, 100, 0.9) 52%, rgba(42, 53, 100, 0.45) 100%);
  clip-path: polygon(0 0, calc(100% - var(--pc-cut)) 0, 100% var(--pc-cut), 100% 100%, var(--pc-cut) 100%, 0 calc(100% - var(--pc-cut)));
  transition: transform 0.26s var(--ease), filter 0.26s var(--ease);
}

.page-contact .channel-card--line {
  --accent: var(--violet);
}

.page-contact .channel-card--place {
  --accent: var(--yellow);
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  transform: translateY(-4px);
  filter: drop-shadow(0 20px 30px rgba(4, 8, 24, 0.7));
}

.page-contact .channel-inner {
  display: flex;
  flex-direction: column;
  gap: 12px;
  height: 100%;
  box-sizing: border-box;
  padding: clamp(22px, 3vw, 30px);
  background: var(--panel);
  clip-path: polygon(0 0, calc(100% - 23px) 0, 100% 23px, 100% 100%, 23px 100%, 0 calc(100% - 23px));
}

.page-contact .channel-inner h3 {
  margin: 0;
  font-family: var(--font-head);
  font-size: 1.12rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--white);
}

.page-contact .channel-inner p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.78;
  color: var(--text);
}

.page-contact .channel-card--mail .tag {
  color: var(--cyan);
  border-color: rgba(47, 214, 196, 0.55);
}

.page-contact .channel-val {
  margin-top: auto !important;
  padding: 12px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 1.5vw, 1.02rem);
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--white);
  word-break: break-word;
}

.page-contact .channel-card--place .channel-val {
  font-family: var(--font-body);
  font-size: 0.96rem;
  line-height: 1.7;
}

.page-contact .copy-chip {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 16px;
  font-size: 0.84rem;
}

.page-contact .copy-chip[data-copied]::after {
  content: "已复制";
  margin-left: 0.6em;
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 0.76rem;
}

/* ---------- 受理范围 ---------- */

.page-contact .scope-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .scope-item {
  position: relative;
  padding: clamp(22px, 3vw, 32px);
  background: var(--ink);
  transition: background-color 0.2s var(--ease);
}

.page-contact .scope-item:hover {
  background: #101a44;
}

.page-contact .scope-mark {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .scope-item h3 {
  margin: 0 0 10px;
  font-size: 1.04rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--white);
}

.page-contact .scope-item p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--text);
}

.page-contact .scope-need {
  margin-top: 16px !important;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 0.82rem !important;
  color: var(--muted) !important;
}

.page-contact .scope-need span {
  margin-right: 0.7em;
  color: var(--cyan-soft);
  letter-spacing: 0.06em;
}

/* ---------- 回复节奏 ---------- */

.page-contact .cadence {
  background: linear-gradient(180deg, transparent, rgba(19, 28, 70, 0.62) 18%, rgba(19, 28, 70, 0.62) 82%, transparent);
}

.page-contact .cadence-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4vw, 56px);
  align-items: start;
}

.page-contact .cadence-steps {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .cadence-steps::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), var(--line));
  opacity: 0.7;
}

.page-contact .cadence-steps li {
  position: relative;
  padding-left: 54px;
  padding-bottom: 28px;
}

.page-contact .cadence-steps li:last-child {
  padding-bottom: 0;
}

.page-contact .step-no {
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  background: var(--cyan);
  color: var(--ink);
  font-size: 0.72rem;
  font-weight: 500;
  border-radius: var(--radius-0);
}

.page-contact .cadence-steps h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--white);
}

.page-contact .cadence-steps p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--text);
}

.page-contact .cadence-figure {
  margin: 0;
  position: relative;
}

.page-contact .cadence-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--line);
  filter: saturate(0.8) brightness(0.88);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
}

/* ---------- 准备清单与自助入口 ---------- */

.page-contact .prep-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 4vw, 56px);
  align-items: start;
}

.page-contact .prep-col .section-head {
  margin-bottom: 20px;
}

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

.page-contact .check-list li {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 18px;
  background: rgba(19, 28, 70, 0.62);
  border-left: 2px solid var(--line);
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-contact .check-list li:hover,
.page-contact .check-list li:focus-within {
  border-left-color: var(--cyan);
  background: rgba(19, 28, 70, 0.95);
}

.page-contact .check-box {
  position: relative;
  display: block;
  width: 16px;
  height: 16px;
  margin-top: 4px;
  border: 1px solid var(--line);
  background: var(--ink);
}

.page-contact .check-box::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 0;
  width: 5px;
  height: 9px;
  border-right: 1.5px solid var(--green);
  border-bottom: 1.5px solid var(--green);
  transform: rotate(40deg);
  opacity: 0.5;
  transition: opacity 0.2s var(--ease);
}

.page-contact .check-list li:hover .check-box::after {
  opacity: 1;
}

.page-contact .check-list strong {
  display: block;
  margin-bottom: 4px;
  font-size: 0.97rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-contact .check-list p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .self-serve {
  padding: clamp(24px, 3vw, 32px);
  background: var(--panel);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
  border-left: 2px solid rgba(122, 107, 255, 0.6);
}

.page-contact .self-serve h2 {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-weight: 300;
  font-size: clamp(1.35rem, 2.6vw, 1.85rem);
  line-height: 1.3;
  letter-spacing: 0.03em;
  color: var(--white);
}

.page-contact .self-serve-note {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .shortcut-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .shortcut-list a {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  grid-template-rows: auto auto;
  align-items: center;
  column-gap: 14px;
  min-height: 44px;
  padding: 13px 14px;
  text-decoration: none;
  color: var(--text);
  background: var(--ink);
  border: 1px solid var(--line);
  transition: border-color 0.18s var(--ease), background-color 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-contact .shortcut-list a:hover,
.page-contact .shortcut-list a:focus-visible {
  border-color: var(--cyan);
  background: #16205a;
  transform: translateX(4px);
}

.page-contact .shortcut-no {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  text-align: center;
  color: var(--cyan);
}

.page-contact .shortcut-text {
  font-size: 0.96rem;
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-contact .shortcut-desc {
  font-size: 0.78rem;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-contact .scope-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-contact .channel-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .channel-card:nth-child(2) {
    margin-top: 34px;
  }

  .page-contact .channel-card:nth-child(3) {
    margin-top: 68px;
  }

  .page-contact .channel-card:nth-child(1) .channel-inner {
    min-height: 348px;
  }

  .page-contact .channel-card:nth-child(2) .channel-inner {
    min-height: 306px;
  }

  .page-contact .channel-card:nth-child(3) .channel-inner {
    min-height: 264px;
  }
}

@media (min-width: 900px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  }

  .page-contact .cadence-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.78fr);
  }

  .page-contact .prep-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .check-list li,
  .page-contact .shortcut-list a,
  .page-contact .check-box::after {
    transition: none;
  }

  .page-contact .channel-card:hover,
  .page-contact .channel-card:focus-within,
  .page-contact .shortcut-list a:hover,
  .page-contact .shortcut-list a:focus-visible {
    transform: none;
  }
}