.page-contact {
  --contact-gap: clamp(18px, 3vw, 34px);
  --contact-pad: clamp(20px, 3.4vw, 38px);
  --contact-line: rgba(201, 222, 216, 0.16);
  --contact-card-bg: rgba(11, 29, 25, 0.86);
}

.page-contact .crumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-contact .crumbs__list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--mist);
  opacity: 0.6;
}

.page-contact .crumbs {
  padding-block: 22px 0;
}

/* 首屏 -------------------------------------------------- */

.page-contact .contact-hero {
  padding-block: clamp(18px, 3.4vw, 40px) clamp(34px, 6vw, 76px);
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--contact-gap);
}

.page-contact h1 {
  margin: 0 0 18px;
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(30px, 4.6vw, 54px);
  line-height: 1.18;
  letter-spacing: 0.01em;
  color: var(--fog);
}

.page-contact .contact-lede {
  max-width: 35em;
  margin: 0 0 clamp(26px, 4vw, 44px);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .contact-channels {
  display: grid;
  gap: clamp(18px, 3vw, 26px);
}

.page-contact .channel {
  position: relative;
  padding-left: 18px;
  border-left: 2px solid var(--cyan);
}

.page-contact .channel__label {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .channel__value {
  display: block;
  text-decoration: none;
  transition: color 220ms var(--ease), border-color 220ms var(--ease);
}

.page-contact .channel__value--mail {
  font-family: var(--sans);
  font-weight: 500;
  font-size: clamp(15px, 3.4vw, 26px);
  line-height: 1.35;
  letter-spacing: 0.005em;
  color: var(--fog);
  word-break: break-all;
  border-bottom: 1px solid rgba(51, 240, 208, 0.32);
}

.page-contact .channel__value--mail:hover,
.page-contact .channel__value--mail:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .channel__value--tel {
  font-family: var(--num);
  font-size: clamp(34px, 7vw, 64px);
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-contact .channel__value--tel:hover,
.page-contact .channel__value--tel:focus-visible {
  color: var(--fog);
}

.page-contact .copy-btn {
  margin-top: 14px;
  color: var(--cyan);
  border-color: rgba(51, 240, 208, 0.38);
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  color: var(--ink-900);
  background: var(--cyan);
  border-color: var(--cyan);
}

/* 右侧值守卡 --------------------------------------------- */

.page-contact .contact-side {
  position: relative;
  padding: var(--contact-pad);
  background:
    linear-gradient(158deg, rgba(18, 59, 51, 0.94), rgba(11, 29, 25, 0.97) 62%, rgba(7, 17, 15, 0.98));
  border: 1px solid var(--hair-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.page-contact .contact-side::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: linear-gradient(90deg, var(--orange), rgba(51, 240, 208, 0.9), transparent);
}

.page-contact .contact-side__title {
  margin: 16px 0 6px;
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.5;
  color: var(--fog);
}

.page-contact .contact-side__list {
  margin: 8px 0 22px;
  padding: 0;
  list-style: none;
}

.page-contact .contact-side__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 14px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--contact-line);
  font-size: 13.5px;
  line-height: 1.6;
}

.page-contact .contact-side__k {
  color: var(--mist);
}

.page-contact .contact-side__v {
  color: var(--fog);
  font-weight: 500;
  text-align: right;
}

.page-contact .contact-side__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* 联系地址 ------------------------------------------------ */

.page-contact .locate-board {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  background: linear-gradient(118deg, rgba(14, 42, 36, 0.92), rgba(7, 17, 15, 0.97));
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .locate-board__media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.page-contact .locate-board__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.72;
  filter: saturate(0.7) contrast(0.92);
}

.page-contact .locate-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  color: rgba(51, 240, 208, 0.3);
  pointer-events: none;
}

.page-contact .locate-board__body {
  padding: var(--contact-pad);
}

.page-contact .locate-board__addr {
  margin: 0 0 14px;
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(20px, 2.8vw, 30px);
  line-height: 1.4;
  color: var(--fog);
}

.page-contact .locate-board__text {
  max-width: 32em;
  margin: 0 0 22px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--mist);
}

/* 响应节奏 ------------------------------------------------ */

.page-contact .pace {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
}

.page-contact .pace__intro h2 {
  margin: 0 0 14px;
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1.3;
  color: var(--fog);
}

.page-contact .pace__intro p {
  max-width: 34em;
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .pace__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--contact-line);
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .pace__stats .stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px 18px;
  background: var(--contact-card-bg);
}

.page-contact .pace__stats .stat__num {
  font-family: var(--num);
  font-size: clamp(30px, 4.4vw, 46px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-contact .pace__stats .stat__label {
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* 反馈提示 ------------------------------------------------ */

.page-contact .feedback__head {
  max-width: 40em;
  margin-bottom: clamp(22px, 3.4vw, 38px);
}

.page-contact .feedback__head h2,
.page-contact .coop__head h2,
.page-contact .selfhelp__head h2 {
  margin: 0 0 14px;
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1.3;
  color: var(--fog);
}

.page-contact .feedback__head p,
.page-contact .coop__head p,
.page-contact .selfhelp__head p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .tips {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--contact-line);
  border-block: 1px solid var(--hair);
}

.page-contact .tip {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 24px 4px 24px 6px;
  background: var(--ink-900);
  transition: background 240ms var(--ease);
}

.page-contact .tip:hover {
  background: rgba(18, 59, 51, 0.34);
}

.page-contact .tip__num {
  font-family: var(--num);
  font-size: 26px;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--orange);
}

.page-contact .tip__body h3 {
  margin: 0 0 8px;
  font-family: var(--sans);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.5;
  color: var(--fog);
}

.page-contact .tip__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

/* 合作方向 ------------------------------------------------ */

.page-contact .coop {
  padding-block: clamp(38px, 6vw, 76px);
}

.page-contact .coop__head {
  max-width: 42em;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-contact .coop__media {
  overflow: hidden;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  aspect-ratio: 16 / 9;
}

.page-contact .coop__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.82;
  filter: saturate(0.85);
}

.page-contact .coop__rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(248px, 84%);
  gap: 14px;
  margin-top: clamp(20px, 3vw, 30px);
  padding: 4px var(--gutter) 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: rgba(51, 240, 208, 0.4) transparent;
}

.page-contact .coop__card {
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 22px;
  background: linear-gradient(168deg, rgba(18, 59, 51, 0.72), rgba(11, 29, 25, 0.94));
  border: 1px solid var(--hair);
  border-radius: var(--radius);
}

.page-contact .coop__card:nth-child(2) {
  background: linear-gradient(168deg, rgba(42, 42, 85, 0.72), rgba(11, 29, 25, 0.94));
}

.page-contact .coop__card:nth-child(3) {
  background: linear-gradient(168deg, rgba(107, 31, 51, 0.66), rgba(11, 29, 25, 0.94));
}

.page-contact .coop__kicker {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .coop__card h3 {
  margin: 0;
  font-family: var(--sans);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.5;
  color: var(--fog);
}

.page-contact .coop__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .coop__note {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px dashed var(--contact-line);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(154, 179, 172, 0.9);
}

/* 自助入口 ------------------------------------------------ */

.page-contact .selfhelp__head {
  max-width: 40em;
  margin-bottom: clamp(22px, 3.4vw, 34px);
}

.page-contact .selfhelp__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--contact-line);
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .help-card {
  display: block;
  padding: 24px 22px;
  background: var(--ink-900);
  text-decoration: none;
  transition: background 240ms var(--ease), box-shadow 240ms var(--ease);
}

.page-contact .help-card:hover,
.page-contact .help-card:focus-visible {
  background: rgba(18, 59, 51, 0.55);
  box-shadow: inset 3px 0 0 var(--cyan);
}

.page-contact .help-card h3 {
  margin: 0 0 8px;
  font-family: var(--sans);
  font-weight: 800;
  font-size: 16px;
  line-height: 1.5;
  color: var(--fog);
}

.page-contact .help-card p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .help-card__go {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .selfhelp__fold {
  margin-top: 20px;
  padding: 0 20px;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  background: rgba(14, 42, 36, 0.42);
}

.page-contact .selfhelp__fold summary {
  padding: 18px 0;
  cursor: pointer;
  font-family: var(--sans);
  font-weight: 700;
  font-size: 15px;
  color: var(--fog);
  list-style: none;
}

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

.page-contact .selfhelp__fold summary::before {
  content: "＋";
  margin-right: 10px;
  color: var(--cyan);
}

.page-contact .selfhelp__fold[open] summary::before {
  content: "－";
}

.page-contact .selfhelp__fold-body {
  padding-bottom: 18px;
  border-top: 1px dashed var(--contact-line);
}

.page-contact .selfhelp__fold-body p {
  max-width: 38em;
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

/* 响应式 -------------------------------------------------- */

@media (min-width: 720px) {
  .page-contact .tips {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .selfhelp__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .pace__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .locate-board {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: stretch;
  }

  .page-contact .locate-board__media {
    aspect-ratio: auto;
    min-height: 320px;
    height: 100%;
  }

  .page-contact .coop__rail {
    grid-auto-flow: row;
    grid-auto-columns: auto;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    padding-inline: 0;
    overflow: visible;
    max-width: var(--maxw);
    margin-inline: auto;
    padding-inline: clamp(18px, 4vw, 54px);
  }
}

@media (min-width: 980px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: clamp(28px, 4vw, 62px);
  }

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

  .page-contact .pace {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel__value,
  .page-contact .tip,
  .page-contact .help-card {
    transition: none;
  }
}