.page-contact {
  --contact-teal: #0B7A6C;
  --contact-ink-muted: #4E6675;
  --contact-card-line: rgba(31, 227, 196, .3);
}

/* 首屏 */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  background: var(--deep);
  color: var(--white);
  padding-block: clamp(2.25rem, 6vw, 4.5rem) clamp(2rem, 5vw, 3.25rem);
}

.page-contact .contact-hero__lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.page-contact .contact-hero__lines svg {
  display: block;
  width: 100%;
  height: 100%;
}

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

.page-contact .contact-hero .crumbs {
  color: var(--cool-gray);
}

.page-contact .contact-hero .crumbs a {
  color: var(--mist);
}

.page-contact .contact-hero .eyebrow {
  margin-top: 1.35rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-contact .contact-hero h1 {
  margin: .5rem 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2.3rem, 8vw, 4.4rem);
  line-height: 1.08;
  letter-spacing: .06em;
  color: var(--white);
}

.page-contact .contact-hero__lead {
  max-width: 46ch;
  margin: 1.15rem 0 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--cool-gray);
}

.page-contact .contact-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--gap);
  margin: 1.9rem 0 0;
  padding: 1.3rem 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-contact .contact-stats .stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2vw, 1.26rem);
  letter-spacing: .02em;
  color: var(--cyan);
}

.page-contact .contact-stats .stat-label {
  display: block;
  margin-top: .45rem;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--cool-gray);
}

/* 浅色主体区 */
.page-contact .contact-shell {
  background: var(--cedar);
  color: var(--ink-text);
  padding-block: clamp(1.75rem, 4.5vw, 3rem);
}

.page-contact .contact-shell__inner {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

.page-contact .contact-map {
  margin: 0 0 clamp(1.5rem, 4vw, 2.5rem);
}

.page-contact .contact-map img,
.page-contact .contact-doc img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.page-contact .contact-shell__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 3.5vw, 2.5rem);
  align-items: start;
}

.page-contact .contact-shell__grid > * {
  min-width: 0;
}

@media (min-width: 920px) {
  .page-contact .contact-shell__grid {
    grid-template-columns: minmax(272px, 32%) minmax(0, 1fr);
  }
}

/* 左栏渠道坐标 */
.page-contact .contact-rail {
  background: var(--midnight);
  border: 1px solid rgba(147, 161, 174, .2);
  border-radius: var(--radius-lg);
  padding: clamp(1.1rem, 3vw, 1.6rem);
}

.page-contact .contact-rail .rail-title {
  margin: 0 0 1.05rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-contact .contact-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .85rem;
}

.page-contact .contact-coord {
  background: var(--deep);
  border: 1px solid var(--contact-card-line);
  border-radius: var(--radius-md);
  padding: 1rem 1rem 1.1rem;
  transition: border-color var(--t-mid), box-shadow var(--t-mid), transform var(--t-mid);
}

.page-contact .contact-coord:hover,
.page-contact .contact-coord:focus-within {
  border-color: var(--cyan);
  box-shadow: 0 12px 28px rgba(4, 16, 27, .5);
  transform: translateY(-2px);
}

.page-contact .contact-coord__head {
  display: flex;
  align-items: baseline;
  gap: .6rem;
  margin-bottom: .65rem;
}

.page-contact .contact-coord__head .num-badge {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-contact .contact-coord__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--white);
}

.page-contact .contact-coord__value {
  margin: 0 0 .8rem;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.65;
  color: var(--mist);
  overflow-wrap: anywhere;
}

.page-contact .contact-coord__use {
  margin: .75rem 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--cool-gray);
}

/* 复制按钮 */
.page-contact .copy-btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .36rem .9rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cyan);
  background: transparent;
  border: 1px solid rgba(31, 227, 196, .42);
  border-radius: 999px;
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast);
}

.page-contact .copy-btn:hover {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--deep);
}

.page-contact .copy-btn[data-state="copied"] {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}

/* 右栏内容 */
.page-contact .contact-body {
  display: grid;
  gap: clamp(1.4rem, 3.5vw, 2.25rem);
  min-width: 0;
}

.page-contact .contact-block {
  background: var(--white);
  border: 1px solid rgba(147, 161, 174, .3);
  border-radius: var(--radius-lg);
  padding: clamp(1.25rem, 3vw, 2rem);
}

.page-contact .contact-block .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--contact-teal);
}

.page-contact .contact-block__title {
  position: relative;
  margin: .5rem 0 .85rem;
  padding-left: .95rem;
  font-family: var(--font-head);
  font-size: clamp(1.3rem, 3.2vw, 1.85rem);
  font-weight: 800;
  line-height: 1.32;
  letter-spacing: .04em;
  color: var(--ink-text);
}

.page-contact .contact-block__title::before {
  content: "";
  position: absolute;
  left: 0;
  top: .22em;
  bottom: .22em;
  width: 4px;
  border-radius: 2px;
  background: var(--cyan);
}

.page-contact .contact-block__lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--contact-ink-muted);
}

.page-contact .contact-block__lead--after {
  margin-top: 1.4rem;
}

.page-contact .contact-block__lead .link-underline {
  color: var(--contact-teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 问题类型 */
.page-contact .contact-tickets {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  display: grid;
  gap: .85rem;
}

@media (min-width: 700px) {
  .page-contact .contact-tickets {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-contact .contact-ticket {
  position: relative;
  padding: .95rem 1rem .95rem 2.9rem;
  background: var(--cedar);
  border-left: 3px solid transparent;
  border-radius: var(--radius-sm);
  transition: border-color var(--t-fast), background var(--t-fast);
}

.page-contact .contact-ticket:hover {
  border-left-color: var(--cyan);
  background: #DFE8EF;
}

.page-contact .contact-ticket__num {
  position: absolute;
  left: 1rem;
  top: 1rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--contact-teal);
}

.page-contact .contact-ticket h3 {
  margin: 0 0 .35rem;
  font-family: var(--font-head);
  font-size: 1rem;
  letter-spacing: .04em;
  color: var(--ink-text);
}

.page-contact .contact-ticket p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--contact-ink-muted);
}

/* 反馈模板 */
.page-contact .contact-template {
  margin: 1.3rem 0 0;
  padding: 1.1rem 1.15rem;
  background: var(--deep);
  border-left: 4px solid var(--cyan);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 2;
  color: var(--cedar);
  overflow-x: auto;
}

.page-contact .contact-template p {
  margin: 0;
}

.page-contact .contact-template .k {
  color: var(--gold-pale);
}

.page-contact .contact-fields {
  margin: 1.4rem 0 0;
  display: grid;
  gap: .65rem;
}

.page-contact .contact-fields__row {
  display: grid;
  gap: .3rem;
  padding-bottom: .65rem;
  border-bottom: 1px dashed rgba(147, 161, 174, .45);
}

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

@media (min-width: 620px) {
  .page-contact .contact-fields__row {
    grid-template-columns: minmax(110px, 140px) minmax(0, 1fr);
    gap: 1rem;
    align-items: baseline;
  }
}

.page-contact .contact-fields dt {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--contact-teal);
}

.page-contact .contact-fields dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--contact-ink-muted);
}

.page-contact .contact-doc {
  margin: 1.6rem 0 0;
}

/* 回复节奏 */
.page-contact .contact-rhythm {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  display: grid;
  gap: .7rem;
}

.page-contact .contact-rhythm li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .9rem;
  align-items: start;
  padding: .85rem 1rem;
  background: var(--cedar);
  border-left: 3px solid var(--cool-gray);
  border-radius: var(--radius-sm);
  transition: border-color var(--t-fast);
}

.page-contact .contact-rhythm li:hover {
  border-left-color: var(--gold);
}

.page-contact .contact-rhythm__num {
  padding-top: .2rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--contact-teal);
}

.page-contact .contact-rhythm li p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--contact-ink-muted);
}

.page-contact .contact-rhythm li strong {
  font-weight: 700;
  color: var(--ink-text);
}

.page-contact .contact-back {
  margin-top: 1.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

/* 备案信息带 */
.page-contact .contact-record {
  margin-top: clamp(2rem, 5vw, 3.25rem);
  background: linear-gradient(118deg, var(--gold) 0%, var(--gold-pale) 58%, var(--mist) 140%);
  color: var(--ink);
  padding-block: clamp(1.6rem, 4vw, 2.4rem);
}

.page-contact .contact-record__inner {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--pad-x);
  display: grid;
  gap: 1.25rem;
  align-items: center;
}

@media (min-width: 820px) {
  .page-contact .contact-record__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 2rem;
  }
}

.page-contact .contact-record .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: rgba(4, 16, 27, .68);
}

.page-contact .contact-record__main h2 {
  margin: .35rem 0 .55rem;
  font-family: var(--font-head);
  font-size: clamp(1.25rem, 3vw, 1.7rem);
  letter-spacing: .05em;
  color: var(--ink);
}

.page-contact .contact-record__main p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(4, 16, 27, .84);
}

.page-contact .contact-record__icp {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: .04em;
}

.page-contact .contact-record__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem 1.25rem;
}

.page-contact .contact-record__meta .copy-btn {
  color: var(--ink);
  border-color: rgba(4, 16, 27, .42);
}

.page-contact .contact-record__meta .copy-btn:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--gold-pale);
}

.page-contact .contact-record__links {
  margin: 0;
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: 14px;
}

.page-contact .contact-record__links a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-contact .contact-record__links .sep {
  color: rgba(4, 16, 27, .5);
}

/* 窄屏微调 */
@media (max-width: 560px) {
  .page-contact .contact-coord__value {
    font-size: 13px;
  }

  .page-contact .contact-template {
    font-size: 11.5px;
    padding: .95rem 1rem;
  }

  .page-contact .contact-ticket {
    padding-left: 2.6rem;
  }

  .page-contact .contact-ticket__num {
    left: .85rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-coord,
  .page-contact .contact-ticket,
  .page-contact .contact-rhythm li,
  .page-contact .copy-btn {
    transition: none;
  }
}