.page-contact {
  --contact-rule: rgba(11, 30, 45, 0.13);
  --contact-gap: clamp(22px, 3.6vw, 40px);
  --contact-pad: clamp(20px, 3vw, 34px);
  background: var(--paper);
  color: var(--graphite);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.9;
  overflow-x: hidden;
}

.page-contact .contact-hero {
  position: relative;
  padding-block: clamp(24px, 4vw, 52px) clamp(36px, 5.4vw, 76px);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -18%;
  right: -12%;
  width: min(680px, 78vw);
  height: min(680px, 78vw);
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, rgba(20, 224, 200, 0.13), rgba(20, 224, 200, 0) 62%);
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: -8%;
  bottom: 8%;
  width: min(360px, 56vw);
  height: min(360px, 56vw);
  border-radius: 46% 54% 62% 38% / 52% 44% 56% 48%;
  background: radial-gradient(circle at 50% 50%, rgba(124, 107, 255, 0.09), rgba(124, 107, 255, 0) 68%);
  pointer-events: none;
}

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

.page-contact .contact-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--contact-gap);
  margin-top: clamp(20px, 3.4vw, 38px);
}

@media (min-width: 940px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
    align-items: start;
    gap: clamp(34px, 4.6vw, 72px);
  }
}

.page-contact .contact-hero__left {
  display: grid;
  gap: clamp(14px, 2vw, 22px);
  align-content: start;
}

.page-contact .contact-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(31px, 5.4vw, 60px);
  line-height: 1.16;
  letter-spacing: -0.012em;
  color: var(--ink);
}

.page-contact .contact-hero__accent {
  position: relative;
  display: inline-block;
  font-weight: 600;
}

.page-contact .contact-hero__accent::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.08em;
  height: 0.14em;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--cyan) 0%, rgba(20, 224, 200, 0) 88%);
  opacity: 0.65;
}

.page-contact .contact-hero .lede {
  max-width: 44ch;
  color: rgba(34, 49, 58, 0.82);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-contact .contact-signal {
  margin: clamp(6px, 1.4vw, 14px) 0 0;
  border-radius: var(--r-l);
  overflow: hidden;
  background: linear-gradient(150deg, var(--ink) 0%, var(--ink-2) 58%, #1f455c 100%);
  border: 1px solid rgba(11, 30, 45, 0.06);
}

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

/* ---- 反馈信息卡片 ---- */

.page-contact .contact-form-card {
  position: relative;
  background: var(--white);
  border-radius: var(--r-l);
  border: 1px solid rgba(11, 30, 45, 0.05);
  padding: var(--contact-pad);
  box-shadow: 0 32px 72px -44px rgba(11, 30, 45, 0.55), 0 1px 0 rgba(11, 30, 45, 0.04);
  scroll-margin-top: 96px;
}

.page-contact .contact-form-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: var(--contact-pad);
  width: 68px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
}

.page-contact .contact-form-card__head {
  display: grid;
  gap: 8px;
  padding-bottom: clamp(14px, 2vw, 20px);
  border-bottom: 1px solid var(--contact-rule);
}

.page-contact .contact-form-card__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(20px, 2vw, 25px);
  line-height: 1.36;
  color: var(--ink);
}

.page-contact .contact-form-card__lead {
  font-size: var(--fs-sm);
  line-height: 1.72;
  color: rgba(34, 49, 58, 0.76);
}

.page-contact .contact-form-card__row {
  margin-top: 16px;
}

.page-contact .contact-form-card__label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-idx);
  letter-spacing: 0.09em;
  color: rgba(11, 30, 45, 0.56);
  margin-bottom: 6px;
}

.page-contact .contact-form-card__chips {
  margin-top: 2px;
}

.page-contact .contact-form-card__fields {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

@media (min-width: 520px) {
  .page-contact .contact-form-card__fields {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .page-contact .contact-form-card__field--wide {
    grid-column: 1 / -1;
  }
}

.page-contact .contact-form-card__field {
  display: grid;
  gap: 3px;
  padding: 11px 13px;
  background: var(--paper);
  border: 1px solid rgba(11, 30, 45, 0.08);
  border-radius: var(--r-s);
}

.page-contact .contact-form-card__field .contact-form-card__label {
  margin-bottom: 2px;
}

.page-contact .contact-form-card__hint {
  font-size: var(--fs-sm);
  line-height: 1.62;
  color: var(--graphite);
}

.page-contact .contact-form-card__foot {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--contact-rule);
  font-size: var(--fs-sm);
  line-height: 1.78;
  color: rgba(34, 49, 58, 0.8);
}

.page-contact .contact-form-card__foot .mono {
  color: var(--ink);
  font-weight: 500;
  word-break: break-word;
}

/* ---- 章节通用 ---- */

.page-contact section[data-section] {
  position: relative;
  padding-block: clamp(40px, 5.6vw, 82px);
}

.page-contact section[data-section]::before {
  content: "";
  position: absolute;
  top: 0;
  left: var(--gutter);
  right: var(--gutter);
  height: 1px;
  background: var(--contact-rule);
}

.page-contact .contact-section-head {
  display: grid;
  gap: 10px;
  max-width: 62ch;
}

.page-contact .contact-section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: var(--fs-h2);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .contact-section-head > p:last-child {
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: rgba(34, 49, 58, 0.78);
}

/* ---- 联系方式 ---- */

.page-contact .contact-channels__list {
  display: grid;
  gap: 14px;
  margin-top: clamp(20px, 3vw, 34px);
}

@media (min-width: 780px) {
  .page-contact .contact-channels__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .contact-channel-card {
  display: grid;
  align-content: start;
  gap: 8px;
  padding: clamp(20px, 2.4vw, 28px);
  background: var(--white);
  border: 1px solid rgba(11, 30, 45, 0.06);
  border-radius: var(--r-m);
  box-shadow: 0 20px 44px -38px rgba(11, 30, 45, 0.42);
}

.page-contact .contact-channel-card__label {
  font-family: var(--font-mono);
  font-size: var(--fs-idx);
  letter-spacing: 0.16em;
  color: #0c9a8d;
}

.page-contact .contact-channel-card__value {
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 1.55;
  letter-spacing: 0.01em;
  color: var(--ink);
  word-break: break-word;
}

.page-contact .contact-channel-card__note {
  font-size: var(--fs-sm);
  line-height: 1.78;
  color: rgba(34, 49, 58, 0.78);
}

/* ---- 响应时间 ---- */

.page-contact .contact-sla__grid {
  display: grid;
  gap: 14px;
  margin-top: clamp(20px, 3vw, 34px);
}

.page-contact .contact-sla__item {
  display: grid;
  align-content: start;
  gap: 8px;
  padding: clamp(20px, 2.6vw, 30px);
  background: var(--white);
  border: 1px solid rgba(11, 30, 45, 0.06);
  border-radius: var(--r-m);
}

@media (min-width: 760px) {
  .page-contact .contact-sla__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    border-top: 1px solid var(--contact-rule);
    border-bottom: 1px solid var(--contact-rule);
  }

  .page-contact .contact-sla__item {
    background: transparent;
    border: 0;
    border-radius: 0;
    border-left: 1px solid var(--contact-rule);
    padding: clamp(26px, 3.2vw, 38px) clamp(20px, 2.6vw, 30px);
  }

  .page-contact .contact-sla__item:first-child {
    border-left: 0;
    padding-left: 0;
  }
}

.page-contact .contact-sla__num {
  font-family: var(--font-mono);
  font-size: clamp(25px, 2.9vw, 38px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: #0c9a8d;
}

.page-contact .contact-sla__num--amber {
  color: #cf7d24;
}

.page-contact .contact-sla__item h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-h4);
  font-weight: 500;
  line-height: 1.4;
  color: var(--ink);
}

.page-contact .contact-sla__item p {
  font-size: var(--fs-sm);
  line-height: 1.78;
  color: rgba(34, 49, 58, 0.78);
}

/* ---- 合作咨询 ---- */

.page-contact .contact-topics__grid {
  display: grid;
  gap: 14px;
  margin-top: clamp(20px, 3vw, 34px);
}

@media (min-width: 760px) {
  .page-contact .contact-topics__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

.page-contact .contact-topic {
  position: relative;
  display: grid;
  align-content: start;
  gap: 8px;
  padding: clamp(18px, 2.4vw, 28px);
  padding-left: calc(clamp(18px, 2.4vw, 28px) + 6px);
  background: var(--white);
  border: 1px solid rgba(11, 30, 45, 0.06);
  border-radius: var(--r-m);
  overflow: hidden;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .contact-topic::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan) 0%, rgba(20, 224, 200, 0.05) 100%);
}

.page-contact .contact-topic:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 44px -34px rgba(11, 30, 45, 0.5);
}

.page-contact .contact-topic h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-h4);
  font-weight: 500;
  line-height: 1.4;
  color: var(--ink);
}

.page-contact .contact-topic p {
  font-size: var(--fs-sm);
  line-height: 1.78;
  color: rgba(34, 49, 58, 0.78);
}

.page-contact .contact-topic__meta {
  justify-self: start;
  margin-top: 4px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(20, 224, 200, 0.13);
  border: 1px solid rgba(20, 224, 200, 0.32);
  font-family: var(--font-mono);
  font-size: var(--fs-idx);
  letter-spacing: 0.06em;
  color: var(--ink);
}

/* ---- 到访与位置 ---- */

.page-contact .contact-address__grid {
  display: grid;
  gap: clamp(20px, 3.4vw, 40px);
  align-items: center;
  padding: clamp(20px, 3.4vw, 42px);
  background: var(--white);
  border: 1px solid rgba(11, 30, 45, 0.06);
  border-radius: var(--r-xl);
}

@media (min-width: 880px) {
  .page-contact .contact-address__grid {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  }
}

.page-contact .contact-address__text {
  display: grid;
  align-content: start;
  gap: 12px;
}

.page-contact .contact-address h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .contact-address__line {
  padding: 10px 0 10px 14px;
  border-left: 3px solid var(--amber);
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-contact .contact-address__text p:not(.contact-address__line) {
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: rgba(34, 49, 58, 0.78);
}

.page-contact .contact-address__fig {
  margin: 0;
  border-radius: var(--r-l);
  overflow: hidden;
  background: var(--ink-2);
}

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

/* ---- 先看常见问题 ---- */

.page-contact .contact-faq__grid {
  display: grid;
  gap: clamp(24px, 3.6vw, 48px);
}

@media (min-width: 860px) {
  .page-contact .contact-faq__grid {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    align-items: start;
  }
}

.page-contact .contact-faq__intro {
  display: grid;
  align-content: start;
  gap: 10px;
}

.page-contact .contact-faq__intro h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(26px, 3vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .contact-faq__intro > p:last-child {
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: rgba(34, 49, 58, 0.78);
}

.page-contact .contact-faq__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--contact-rule);
}

.page-contact .contact-faq__list li {
  border-bottom: 1px solid var(--contact-rule);
}

.page-contact .contact-faq__list a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: clamp(15px, 2.1vw, 20px) 0;
  text-decoration: none;
  color: inherit;
  transition: padding-left var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .contact-faq__list a:hover,
.page-contact .contact-faq__list a:focus-visible {
  padding-left: 8px;
}

.page-contact .contact-faq__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: var(--fs-idx);
  letter-spacing: 0.1em;
  color: var(--sage);
  transition: color var(--dur) var(--ease);
}

.page-contact .contact-faq__list a:hover .contact-faq__num,
.page-contact .contact-faq__list a:focus-visible .contact-faq__num {
  color: #0c9a8d;
}

.page-contact .contact-faq__body {
  display: grid;
  gap: 4px;
}

.page-contact .contact-faq__body strong {
  font-family: var(--font-display);
  font-size: var(--fs-h4);
  font-weight: 500;
  line-height: 1.42;
  color: var(--ink);
}

.page-contact .contact-faq__body span {
  font-size: var(--fs-sm);
  line-height: 1.72;
  color: rgba(34, 49, 58, 0.76);
}

/* ---- 窄屏兜底 ---- */

@media (max-width: 520px) {
  .page-contact .contact-hero h1 {
    font-size: clamp(27px, 8vw, 36px);
  }

  .page-contact .contact-form-card {
    border-radius: var(--r-m);
  }

  .page-contact .contact-address__grid {
    border-radius: var(--r-l);
  }

  .page-contact .contact-faq__list a {
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-topic,
  .page-contact .contact-faq__list a,
  .page-contact .contact-faq__num {
    transition: none;
  }

  .page-contact .contact-topic:hover {
    transform: none;
  }
}