.page-contact {
  --contact-soft: rgba(11, 27, 58, 0.66);
  --contact-line: rgba(11, 27, 58, 0.14);
  --contact-line-dark: rgba(199, 208, 224, 0.26);
  --contact-lite: rgba(255, 255, 255, 0.78);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: #fff;
  padding: clamp(64px, 11vw, 132px) 0 clamp(48px, 7vw, 88px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(199, 208, 224, 0.09) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(199, 208, 224, 0.09) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  top: -18%;
  right: -12%;
  width: min(560px, 70vw);
  height: min(560px, 70vw);
  background: radial-gradient(circle, rgba(46, 196, 182, 0.20), transparent 68%);
  pointer-events: none;
}

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

.page-contact .breadcrumb {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.58);
}

.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(20px, 3.5vw, 34px);
  padding: 0;
  list-style: none;
}

.page-contact .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(255, 255, 255, 0.28);
}

.page-contact .breadcrumb a {
  color: var(--cyan);
  text-decoration: none;
}

.page-contact .breadcrumb a:hover {
  text-decoration: underline;
}

.page-contact .contact-hero .eyebrow {
  color: var(--cyan);
  margin-bottom: clamp(14px, 2vw, 22px);
}

.page-contact .contact-hero__title {
  margin: 0 0 clamp(20px, 3vw, 32px);
  color: #fff;
  line-height: 1.04;
  font-size: clamp(40px, 8.4vw, 104px);
  letter-spacing: -0.02em;
}

.page-contact .contact-hero__lead {
  max-width: 640px;
  margin: 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.8;
}

.page-contact .hero-rule {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-top: clamp(36px, 6vw, 64px);
  height: 26px;
  border-bottom: 1px solid var(--contact-line-dark);
}

.page-contact .hero-rule__tick {
  display: block;
  width: 1px;
  height: 10px;
  background: var(--contact-line-dark);
}

.page-contact .hero-rule__tick:nth-child(2n) {
  height: 16px;
  background: rgba(46, 196, 182, 0.5);
}

.page-contact .hero-rule__tick:last-child {
  height: 26px;
  background: var(--signal);
  width: 2px;
}

/* ---------- 通用小节补充 ---------- */
.page-contact .section-note {
  margin: 0;
  max-width: 560px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--contact-soft);
}

.page-contact .section--ink .section-note {
  color: var(--contact-lite);
}

.page-contact .section-head .section-index {
  display: block;
  margin-bottom: 10px;
}

/* ---------- 01 联系入口 ---------- */
.page-contact .contact-channels {
  background: var(--paper);
}

.page-contact .channel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  margin-top: clamp(30px, 4.5vw, 52px);
}

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

.page-contact .coord-item {
  position: relative;
  padding: clamp(20px, 3vw, 28px) 0 clamp(20px, 3vw, 28px) clamp(22px, 3vw, 30px);
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .coord-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: clamp(26px, 3.6vw, 34px);
  width: 10px;
  height: 10px;
  background: var(--cyan);
}

.page-contact .coord-item__label {
  display: block;
  color: var(--contact-soft);
  margin-bottom: 10px;
}

.page-contact .coord-item__value {
  display: block;
  font-size: clamp(17px, 2.1vw, 22px);
  color: var(--ink);
  text-decoration: none;
  word-break: break-all;
  line-height: 1.4;
  transition: color var(--speed-fast) var(--ease);
}

.page-contact .coord-item__value--text {
  font-size: clamp(16px, 1.9vw, 20px);
  word-break: normal;
}

.page-contact a.coord-item__value:hover {
  color: var(--signal);
}

.page-contact .coord-item__note {
  display: block;
  margin-top: 12px;
  max-width: 560px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--contact-soft);
}

.page-contact .map-frame {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--contact-line);
  align-self: start;
}

.page-contact .map-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform var(--speed) var(--ease);
}

.page-contact .map-frame::after {
  content: "";
  position: absolute;
  left: 58%;
  top: 44%;
  width: 14px;
  height: 14px;
  background: var(--signal);
  box-shadow: 0 0 0 5px rgba(255, 107, 53, 0.22);
  transform: translate(-50%, -50%);
  transition: transform var(--speed) var(--ease);
  pointer-events: none;
  z-index: 2;
}

.page-contact .map-frame:hover::after {
  transform: translate(-50%, -50%) scale(1.65);
}

.page-contact .map-frame:hover img {
  transform: scale(1.03);
}

/* ---------- 02 咨询准备 ---------- */
.page-contact .contact-prep {
  background: var(--paper);
  border-top: 1px solid var(--contact-line);
}

.page-contact .prep-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  margin-top: clamp(28px, 4vw, 46px);
}

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

.page-contact .prep-item {
  position: relative;
  background: #fff;
  border: 1px solid var(--contact-line);
  border-left: 3px solid var(--grid);
  margin-bottom: 14px;
  transition: border-left-color var(--speed-fast) var(--ease);
}

.page-contact .prep-item__check {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  margin: 0;
  pointer-events: none;
}

.page-contact .prep-item__label {
  display: flex;
  align-items: flex-start;
  gap: clamp(14px, 2vw, 22px);
  padding: clamp(18px, 2.6vw, 26px);
  cursor: pointer;
}

.page-contact .prep-item__num {
  flex: 0 0 auto;
  color: var(--signal);
  font-size: 13px;
  padding-top: 3px;
}

.page-contact .prep-item__body {
  display: block;
  min-width: 0;
}

.page-contact .prep-item__title {
  display: block;
  font-size: clamp(16px, 1.9vw, 19px);
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}

.page-contact .prep-item__desc {
  display: block;
  font-size: 14px;
  line-height: 1.8;
  color: var(--contact-soft);
}

.page-contact .prep-item__box {
  flex: 0 0 auto;
  position: relative;
  width: 18px;
  height: 18px;
  margin-left: auto;
  margin-top: 3px;
  border: 1px solid var(--contact-line);
  background: var(--paper);
  transition: background var(--speed-fast) var(--ease), border-color var(--speed-fast) var(--ease);
}

.page-contact .prep-item__check:checked + .prep-item__label .prep-item__box {
  background: var(--cyan);
  border-color: var(--cyan-deep);
}

.page-contact .prep-item__check:checked + .prep-item__label .prep-item__box::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(45deg);
}

.page-contact .prep-item:has(.prep-item__check:checked) {
  border-left-color: var(--cyan);
}

.page-contact .prep-item__check:focus-visible + .prep-item__label {
  outline: 2px solid var(--cyan);
  outline-offset: -3px;
}

.page-contact .prep-figure {
  margin: 0;
  align-self: start;
}

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

/* ---------- 03 处理顺序 ---------- */
.page-contact .contact-timing {
  background: var(--ink);
}

.page-contact .timing-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(32px, 5vw, 64px);
}

.page-contact .contact-timing .section-index {
  display: block;
  color: var(--signal);
  margin-bottom: 12px;
}

.page-contact .contact-timing .h-section {
  color: #fff;
  margin: 0 0 18px;
}

.page-contact .flow-list {
  list-style: none;
  margin: clamp(26px, 3.5vw, 40px) 0 0;
  padding: 0;
}

.page-contact .flow-item {
  position: relative;
  margin-left: 5px;
  padding: 0 0 clamp(22px, 3vw, 32px) clamp(24px, 3.5vw, 38px);
  border-left: 1px solid var(--contact-line-dark);
}

.page-contact .flow-item:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.page-contact .flow-item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 4px;
  width: 9px;
  height: 9px;
  background: var(--cyan);
}

.page-contact .flow-item:last-child::before {
  background: var(--amber);
}

.page-contact .flow-item__time {
  display: block;
  font-size: 13px;
  color: var(--amber);
  margin-bottom: 8px;
}

.page-contact .flow-item__text {
  margin: 0;
  max-width: 560px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--contact-lite);
}

.page-contact .timing-side {
  border-top: 1px solid var(--contact-line-dark);
  padding-top: clamp(24px, 3.5vw, 36px);
}

.page-contact .timing-side__title {
  margin: 0 0 18px;
  color: #fff;
  font-size: clamp(17px, 2vw, 20px);
}

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

.page-contact .letter-list li {
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--contact-line-dark);
  font-size: 14px;
  line-height: 1.75;
  color: var(--contact-lite);
}

.page-contact .letter-list .mono {
  flex: 0 0 auto;
  color: var(--cyan);
  font-size: 12px;
  padding-top: 3px;
}

.page-contact .letter-list__foot {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
}

.page-contact .letter-list__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(46, 196, 182, 0.45);
}

.page-contact .letter-list__foot a:hover {
  color: #fff;
  border-bottom-color: #fff;
}

/* ---------- 04 合作对接 ---------- */
.page-contact .contact-coop {
  background: var(--paper);
}

.page-contact .coop-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  background: var(--violet);
  color: #fff;
  padding: clamp(30px, 5vw, 64px);
  border-left: 4px solid var(--cyan);
}

.page-contact .coop-panel .section-index {
  display: block;
  color: var(--amber);
  margin-bottom: 12px;
}

.page-contact .coop-panel .h-section {
  color: #fff;
  margin: 0 0 20px;
}

.page-contact .coop-panel__text {
  margin: 0 0 16px;
  max-width: 620px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.84);
}

.page-contact .coop-panel .btn {
  margin-top: 10px;
}

.page-contact .coop-facts {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  background: rgba(255, 255, 255, 0.18);
  align-self: start;
}

.page-contact .coop-fact {
  background: var(--violet);
  padding: 18px 20px;
}

.page-contact .coop-fact dt {
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 10px;
}

.page-contact .coop-fact__value {
  margin: 0;
  font-size: clamp(18px, 2.2vw, 22px);
  color: #fff;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .prep-item__label {
    align-items: flex-start;
  }

  .page-contact .timing-side {
    border-top: none;
    border-left: 1px solid var(--contact-line-dark);
    padding-top: 0;
    padding-left: clamp(24px, 3.5vw, 40px);
  }
}

@media (min-width: 980px) {
  .page-contact .channel-grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: start;
  }

  .page-contact .prep-grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }

  .page-contact .timing-grid {
    grid-template-columns: 1.25fr 0.75fr;
    align-items: start;
  }

  .page-contact .coop-panel {
    grid-template-columns: 1.35fr 0.65fr;
    align-items: center;
  }

  .page-contact .coop-facts {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .map-frame img,
  .page-contact .map-frame::after,
  .page-contact .coord-item__value,
  .page-contact .prep-item,
  .page-contact .prep-item__box {
    transition: none;
  }

  .page-contact .map-frame:hover img {
    transform: none;
  }

  .page-contact .map-frame:hover::after {
    transform: translate(-50%, -50%);
  }
}