.page-contact {
  --contact-gap: clamp(16px, 2.4vw, 28px);
  display: block;
  background: var(--ink);
  color: var(--bone);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
}

.page-contact .container {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: clamp(18px, 4vw, 40px);
}

/* ---------- 面包屑与通用小标签 ---------- */
.page-contact .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

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

.page-contact .breadcrumbs a:hover,
.page-contact .breadcrumbs a:focus-visible {
  color: var(--gold-light);
  border-bottom-color: var(--line-gold);
}

.page-contact .breadcrumbs__sep {
  color: var(--line-gold);
}

.page-contact .eyebrow {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
}

/* ---------- 首屏 ---------- */
.contact-hero {
  position: relative;
  padding-block: clamp(22px, 3.5vw, 40px) clamp(38px, 6vw, 82px);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-soft) 1px, transparent 1px);
  background-size: var(--grid) var(--grid);
  opacity: 0.6;
  pointer-events: none;
}

.contact-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.contact-hero__title {
  margin: 14px 0 0;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(31px, 5.4vw, 60px);
  line-height: 1.13;
  letter-spacing: -0.02em;
  color: var(--bone);
}

.contact-hero__lead {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: 16px;
  color: rgba(243, 238, 227, 0.78);
}

.contact-hero__facts {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: clamp(16px, 2.4vw, 22px) 0 0;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 30px;
  font-size: 14px;
  color: var(--mist);
}

.contact-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.contact-hero__facts .mono {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--gold-light);
  letter-spacing: 0.02em;
}

.contact-hero__figure {
  margin: 0;
}

/* ---------- 章节通用 ---------- */
.contact-block {
  padding-block: clamp(40px, 6vw, 80px);
  border-bottom: 1px solid var(--line);
}

.contact-sec-head {
  max-width: 720px;
  margin-bottom: clamp(22px, 3.4vw, 38px);
}

.contact-sec-head__title {
  margin: 10px 0 0;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(24px, 3.2vw, 38px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--bone);
}

.contact-sec-head__note {
  margin: 14px 0 0;
  font-size: 15px;
  color: var(--mist);
}

/* ---------- 三条联系路径 ---------- */
.contact-paths__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.contact-path {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 2.8vw, 34px);
  background: var(--ink);
  transition: background var(--ease);
}

.contact-path::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gold);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--ease);
}

.contact-path:hover,
.contact-path:focus-within {
  background: #101215;
}

.contact-path:hover::after,
.contact-path:focus-within::after {
  transform: scaleY(1);
}

.contact-path__icon svg {
  width: 30px;
  height: 30px;
  fill: none;
  stroke: var(--gold);
  stroke-width: 1.25;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.contact-path__name {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  font-weight: 400;
  color: var(--mist);
}

.contact-path__value {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(16px, 2.3vw, 21px);
  line-height: 1.45;
  color: var(--gold-light);
  letter-spacing: 0.01em;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.contact-path__value--addr {
  font-size: clamp(15px, 1.9vw, 18px);
}

.contact-path__desc {
  margin: 0;
  font-size: 15px;
  color: rgba(243, 238, 227, 0.72);
}

.contact-path__meta {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--moss);
}

/* ---------- 提交准备清单 ---------- */
.contact-check {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.contact-check__item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 4px 16px;
  align-items: baseline;
  padding: clamp(18px, 2.4vw, 26px) clamp(8px, 1.6vw, 18px);
  background: var(--ink);
}

.contact-check__idx {
  grid-row: 1 / span 2;
  font-family: var(--mono);
  font-size: 22px;
  line-height: 1.2;
  color: var(--line-gold);
  letter-spacing: 0.02em;
}

.contact-check__title {
  margin: 0;
  font-family: var(--serif);
  font-weight: 900;
  font-size: 18px;
  line-height: 1.4;
  color: var(--bone);
}

.contact-check__desc {
  margin: 0;
  font-size: 15px;
  color: var(--mist);
  max-width: 62ch;
}

/* ---------- 处理节奏 ---------- */
.contact-sla__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.contact-sla__cell {
  padding: clamp(20px, 2.6vw, 30px);
  background: var(--ink);
}

.contact-sla__cell--deadline {
  background: linear-gradient(160deg, rgba(192, 57, 43, 0.14), rgba(10, 11, 13, 0) 70%), var(--ink);
}

.contact-sla__num {
  display: block;
  font-family: var(--mono);
  font-size: clamp(26px, 3.4vw, 38px);
  line-height: 1.1;
  color: var(--gold);
  letter-spacing: -0.01em;
}

.contact-sla__cell--deadline .contact-sla__num {
  color: var(--vermilion);
}

.contact-sla__label {
  margin: 12px 0 0;
  font-size: 16px;
  font-weight: 500;
  color: var(--bone);
}

.contact-sla__desc {
  margin: 8px 0 0;
  font-size: 14px;
  color: var(--mist);
}

/* ---------- 受理范围 ---------- */
.contact-region__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.contact-region__figure {
  margin: 0;
}

.contact-region__text {
  display: grid;
  gap: clamp(18px, 2.6vw, 26px);
}

.contact-region__row {
  padding-left: 18px;
  border-left: 1px solid var(--line-gold);
}

.contact-region__row h3 {
  margin: 12px 0 6px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: 19px;
  line-height: 1.4;
  color: var(--bone);
}

.contact-region__row p {
  margin: 0;
  font-size: 15px;
  color: var(--mist);
}

.page-contact .tag {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.08em;
}

/* ---------- 上门时间线 ---------- */
.contact-timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 32px;
  position: relative;
}

.contact-timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, var(--line-gold) 0%, rgba(200, 162, 74, 0.12) 60%, rgba(200, 162, 74, 0.04) 100%);
}

.contact-timeline__item {
  position: relative;
  padding-bottom: clamp(24px, 3.2vw, 38px);
}

.contact-timeline__item:last-child {
  padding-bottom: 0;
}

.contact-timeline__node {
  position: absolute;
  left: -33px;
  top: 6px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1px solid var(--line-gold);
  background: var(--ink);
}

.contact-timeline__node::after {
  content: "";
  position: absolute;
  inset: 5px;
  border-radius: 50%;
  background: var(--gold);
}

.contact-timeline__item--deadline .contact-timeline__node {
  border-color: var(--vermilion);
}

.contact-timeline__item--deadline .contact-timeline__node::after {
  background: var(--vermilion);
}

.contact-timeline__step {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.contact-timeline__item--deadline .contact-timeline__step {
  color: var(--vermilion);
}

.contact-timeline__body h3 {
  margin: 8px 0 8px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(19px, 2.3vw, 24px);
  line-height: 1.35;
  color: var(--bone);
}

.contact-timeline__body p {
  margin: 0;
  font-size: 15px;
  color: var(--mist);
  max-width: 64ch;
}

/* ---------- 合作与建议 ---------- */
.contact-coop__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.4vw, 26px);
}

.contact-coop__card {
  padding: clamp(20px, 2.6vw, 30px);
  border: 1px solid var(--line);
  border-top: 1px solid var(--line-gold);
  background: linear-gradient(180deg, rgba(35, 39, 43, 0.7), rgba(10, 11, 13, 0) 62%);
  transition: border-color var(--ease), transform var(--ease);
}

.contact-coop__card:hover {
  border-color: var(--line-gold);
  transform: translateY(-2px);
}

.contact-coop__idx {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--clay);
}

.contact-coop__card h3 {
  margin: 12px 0 8px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: 19px;
  line-height: 1.4;
  color: var(--bone);
}

.contact-coop__card p {
  margin: 0;
  font-size: 15px;
  color: var(--mist);
}

/* ---------- 尾部索引 ---------- */
.contact-next {
  padding-block: clamp(40px, 6vw, 76px);
  background: linear-gradient(180deg, rgba(35, 39, 43, 0.5), rgba(10, 11, 13, 0) 80%);
}

.contact-next__title {
  margin: 10px 0 clamp(20px, 3vw, 30px);
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(22px, 2.8vw, 32px);
  line-height: 1.3;
  color: var(--bone);
}

.contact-next__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.contact-next__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: clamp(16px, 2.2vw, 22px) clamp(8px, 1.6vw, 16px);
  background: var(--ink);
}

.contact-next__item a {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 18px;
  color: var(--bone);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  align-self: flex-start;
  transition: color var(--ease), border-color var(--ease);
}

.contact-next__item a:hover,
.contact-next__item a:focus-visible {
  color: var(--gold-light);
  border-bottom-color: var(--line-gold);
}

.contact-next__item span {
  font-size: 14px;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .contact-check__item {
    grid-template-columns: 60px 1fr;
  }

  .contact-sla__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-next__item {
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
    gap: 24px;
  }

  .contact-next__item span {
    text-align: right;
    max-width: 46ch;
  }
}

@media (min-width: 900px) {
  .contact-paths__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .contact-coop__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .contact-region__inner {
    grid-template-columns: 5fr 7fr;
  }
}

@media (min-width: 960px) {
  .contact-hero__inner {
    grid-template-columns: 7fr 5fr;
    gap: clamp(32px, 5vw, 72px);
  }
}

@media (min-width: 1080px) {
  .contact-sla__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 520px) {
  .contact-hero__title {
    font-size: 30px;
  }

  .contact-path__value {
    font-size: 15px;
  }

  .contact-path__value--addr {
    font-size: 14px;
  }

  .contact-timeline {
    padding-left: 26px;
  }

  .contact-timeline::before {
    left: 6px;
  }

  .contact-timeline__node {
    left: -26px;
    width: 15px;
    height: 15px;
  }

  .contact-timeline__node::after {
    inset: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }

  .contact-coop__card:hover {
    transform: none;
  }
}