.page-contact {
  --c-gap: clamp(16px, 2.2vw, 26px);
  --c-block: clamp(58px, 9vw, 112px);
  padding-bottom: clamp(48px, 8vw, 96px);
  background:
    radial-gradient(110% 55% at 10% 0%, rgba(41, 224, 208, 0.07), transparent 58%),
    radial-gradient(90% 48% at 94% 6%, rgba(255, 106, 31, 0.09), transparent 60%);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  margin: clamp(20px, 4vw, 38px) 0 clamp(18px, 3vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero__head {
  max-width: 60ch;
}

.page-contact .contact-hero h1 {
  margin: 12px 0 0;
  font-size: clamp(34px, 5.6vw, 66px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--rice);
}

.page-contact .contact-hero__lead {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 56ch;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .contact-hero__figure {
  margin: clamp(26px, 4vw, 44px) 0 var(--c-gap);
}

.page-contact .contact-hero__figure .figure__frame {
  aspect-ratio: 3 / 2;
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

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

.page-contact .figure__caption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--mist);
  line-height: 1.7;
}

/* ---------- 三条渠道对照板 ---------- */
.page-contact .contact-channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--c-gap);
}

.page-contact .contact-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 2.4vw, 32px);
  border-radius: var(--r-lg);
  overflow: hidden;
  isolation: isolate;
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  z-index: 2;
}

.page-contact .contact-card--mail::before {
  background: linear-gradient(90deg, var(--accent), var(--amber) 52%, transparent);
}

.page-contact .contact-card--phone::before {
  background: linear-gradient(90deg, var(--cyan), transparent);
}

.page-contact .contact-card--self::before {
  background: linear-gradient(90deg, var(--moss), transparent);
}

.page-contact .contact-card__title {
  margin: 0;
  font-size: clamp(20px, 2vw, 25px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--rice);
}

.page-contact .contact-card__value {
  margin: 0;
  font-size: clamp(14px, 1.45vw, 17px);
  letter-spacing: 0.01em;
  word-break: break-all;
  line-height: 1.5;
}

.page-contact .contact-card--mail .contact-card__value {
  color: var(--accent);
}

.page-contact .contact-card--phone .contact-card__value {
  color: var(--cyan);
}

.page-contact .contact-card__meta {
  margin: 0;
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: -0.02em;
  line-height: 1;
}

.page-contact .contact-card__meta::after {
  content: " 条常见问题";
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--mist);
}

.page-contact .contact-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .contact-card__cta {
  margin-top: auto;
  align-self: flex-start;
}

/* ---------- 通用区块间距 ---------- */
.page-contact .contact-block {
  margin-top: var(--c-block);
}

/* ---------- 自助入口 ---------- */
.page-contact .contact-quick {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-contact .contact-quick__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(180deg, rgba(16, 26, 46, 0.92), rgba(7, 13, 26, 0.92));
  color: var(--white);
  text-decoration: none;
  transition: border-color 0.32s var(--ease), transform 0.32s var(--ease), background 0.32s var(--ease);
}

.page-contact .contact-quick__item:hover,
.page-contact .contact-quick__item:focus-visible {
  border-color: var(--cyan);
  transform: translateY(-2px);
  background: linear-gradient(180deg, rgba(16, 26, 46, 1), rgba(11, 20, 36, 1));
}

.page-contact .contact-quick__num {
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.page-contact .contact-quick__label {
  font-size: 15px;
  line-height: 1.6;
}

.page-contact .contact-quick__go {
  font-size: 13px;
  color: var(--mist);
  white-space: nowrap;
}

.page-contact .contact-steps {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.page-contact .contact-steps details {
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: rgba(16, 26, 46, 0.5);
  overflow: hidden;
}

.page-contact .contact-steps details[open] {
  border-color: var(--line);
  background: rgba(16, 26, 46, 0.86);
}

.page-contact .contact-steps summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--rice);
  line-height: 1.6;
}

.page-contact .contact-steps summary::-webkit-details-marker {
  display: none;
}

.page-contact .contact-steps summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}

.page-contact .contact-steps details[open] summary::after {
  content: "\2212";
}

.page-contact .contact-steps summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-contact .contact-steps__num {
  flex: none;
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.06em;
}

.page-contact .contact-steps__body {
  padding: 0 18px 18px 46px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .contact-inline-link {
  margin: 22px 0 0;
  font-size: 14px;
  color: var(--mist);
}

.page-contact .contact-inline-link a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(41, 224, 208, 0.4);
}

.page-contact .contact-inline-link a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 邮箱区块 ---------- */
.page-contact .contact-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--c-gap);
}

.page-contact .contact-points {
  list-style: none;
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .contact-points li {
  position: relative;
  padding-left: 26px;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--white);
}

.page-contact .contact-points li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.66em;
  width: 12px;
  height: 2px;
  background: var(--accent);
}

.page-contact .contact-mail-line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  margin-top: clamp(20px, 3vw, 30px);
  padding: 16px 18px;
  border-radius: var(--r-md);
  border: 1px dashed rgba(41, 224, 208, 0.42);
  background: rgba(41, 224, 208, 0.05);
}

.page-contact .contact-mail-line__key {
  font-size: 13px;
  color: var(--mist);
  letter-spacing: 0.04em;
}

.page-contact .contact-mail-line__val {
  font-size: clamp(14px, 1.5vw, 17px);
  color: var(--cyan);
  word-break: break-all;
}

.page-contact .contact-fineprint {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--mist);
  line-height: 1.7;
}

.page-contact .contact-aside {
  padding: clamp(20px, 2.6vw, 28px);
  border-radius: var(--r-lg);
  background: linear-gradient(160deg, rgba(194, 96, 58, 0.16), rgba(16, 26, 46, 0.7));
  border: 1px solid var(--line);
}

.page-contact .contact-aside__title {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--rice);
}

.page-contact .contact-aside__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .contact-aside__list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: var(--white);
  line-height: 1.6;
}

.page-contact .contact-aside__list .mono {
  flex: none;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: rgba(194, 96, 58, 0.28);
  color: var(--rice);
  font-size: 12px;
}

.page-contact .contact-aside__note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  color: var(--mist);
  line-height: 1.7;
}

/* ---------- 电话区块 ---------- */
.page-contact .contact-rows {
  margin-top: clamp(22px, 3vw, 32px);
  border-top: 1px solid var(--line);
}

.page-contact .contact-rows__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 4px;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .contact-rows__key {
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-contact .contact-rows__val {
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--white);
}

.page-contact .contact-rows__row--num {
  border-bottom-color: transparent;
  background: linear-gradient(90deg, rgba(255, 106, 31, 0.12), transparent 70%);
}

.page-contact .contact-rows__val--num {
  font-size: clamp(22px, 3.2vw, 34px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--accent);
  line-height: 1.15;
}

/* ---------- 反馈材料清单 ---------- */
.page-contact .contact-checklist {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--c-gap);
}

.page-contact .contact-mats {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .contact-mats__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: clamp(16px, 2vw, 22px);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: linear-gradient(150deg, rgba(16, 26, 46, 0.9), rgba(7, 13, 26, 0.72));
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-contact .contact-mats__item:hover {
  border-color: rgba(255, 106, 31, 0.55);
  transform: translateX(3px);
}

.page-contact .contact-mats__num {
  flex: none;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: rgba(255, 106, 31, 0.14);
  border: 1px solid rgba(255, 106, 31, 0.42);
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-contact .contact-mats__body h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--rice);
}

.page-contact .contact-mats__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .contact-checklist__aside .figure {
  margin: 0;
}

.page-contact .contact-checklist__aside .figure__frame {
  aspect-ratio: 12 / 7;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

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

/* ---------- 地址与备案 ---------- */
.page-contact .contact-org {
  margin-top: var(--c-block);
  padding: clamp(40px, 6vw, 76px) 0 clamp(56px, 8vw, 104px);
  border-top: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(16, 26, 46, 0.42), rgba(3, 7, 16, 0.92));
}

.page-contact .contact-org__title {
  margin: 10px 0 clamp(22px, 3.2vw, 34px);
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--rice);
}

.page-contact .contact-org__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-contact .contact-org__cell {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(34, 48, 74, 0.5);
}

.page-contact .contact-org__cell:last-child {
  border-bottom: none;
}

.page-contact .contact-org__key {
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-contact .contact-org__val {
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--white);
  word-break: break-word;
}

.page-contact .contact-org__val.mono {
  color: rgba(232, 238, 246, 0.88);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .contact-org__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(24px, 4vw, 56px);
  }

  .page-contact .contact-org__cell:nth-last-child(-n + 2) {
    border-bottom: none;
  }

  .page-contact .contact-rows__row {
    grid-template-columns: minmax(120px, 180px) minmax(0, 1fr);
    align-items: baseline;
    gap: 20px;
    padding: 20px 4px;
  }
}

@media (min-width: 860px) {
  .page-contact .contact-channels {
    grid-template-columns: 1.45fr 1fr 1fr;
    align-items: stretch;
  }

  .page-contact .contact-quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-contact .contact-split {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
    gap: clamp(26px, 3.4vw, 46px);
  }

  .page-contact .contact-checklist {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
    gap: clamp(26px, 3.4vw, 48px);
  }

  .page-contact .contact-aside {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-quick__item,
  .page-contact .contact-mats__item {
    transition: none;
  }

  .page-contact .contact-quick__item:hover,
  .page-contact .contact-quick__item:focus-visible,
  .page-contact .contact-mats__item:hover {
    transform: none;
  }
}