.page-contact {
  --cut: 18px;
  --cut-sm: 12px;
  --focus-ring: 0 0 0 3px rgba(47, 227, 198, 0.32);
  color: var(--paper);
  padding-bottom: 72px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: 26px;
  padding-block: 22px 40px;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-hero__body {
  min-width: 0;
}

.page-contact .contact-hero h1 {
  margin: 10px 0 0;
  font-family: var(--font-title);
  font-size: clamp(32px, 7vw, 58px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: 0.01em;
  color: var(--paper);
  max-width: 18ch;
}

.page-contact .contact-hero__lead {
  margin: 18px 0 0;
  max-width: 48ch;
  font-size: 17px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .contact-hero__stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 30px 0 0;
  padding-top: 22px;
  border-top: 1px dashed var(--line);
}

.page-contact .contact-hero__stats > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.page-contact .contact-hero__stats dt {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist-dim);
  text-transform: uppercase;
}

.page-contact .contact-hero__stats dd {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  color: var(--gold-soft);
}

.page-contact .contact-hero__media {
  position: relative;
  margin: 0;
  background: var(--panel);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 0 100%);
  overflow: hidden;
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 11;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.06) brightness(0.92);
}

.page-contact .contact-hero__media::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 62%;
  height: 4px;
  background: linear-gradient(90deg, var(--gold), rgba(217, 169, 63, 0));
}

/* ---------- 主区栅格 ---------- */
.page-contact .contact-desk {
  display: grid;
  gap: 30px;
  padding-block: 40px 0;
}

/* ---------- 侧边通讯卡 ---------- */
.page-contact .contact-card {
  position: relative;
  padding: 24px 20px 22px;
  background: var(--panel);
  border-top: 2px solid var(--gold);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.page-contact .contact-card h2 {
  margin: 8px 0 4px;
  font-family: var(--font-title);
  font-size: 26px;
  font-weight: 800;
  line-height: 1.15;
  color: var(--paper);
}

.page-contact .contact-card__item {
  padding: 16px 0 14px;
  border-bottom: 1px dashed var(--line);
}

.page-contact .contact-card__item--hours {
  border-bottom: 0;
}

.page-contact .contact-card__key {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
  text-transform: uppercase;
}

.page-contact .contact-card__value {
  margin: 0;
  font-size: 16px;
  line-height: 1.55;
  color: var(--paper);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .contact-card__value--mail {
  font-family: var(--font-mono);
  font-size: 14.5px;
  color: var(--gold-soft);
}

.page-contact .contact-card__value--tel {
  font-size: 22px;
  font-weight: 700;
  color: var(--gold-soft);
  letter-spacing: 0.02em;
}

.page-contact .contact-card__value--addr {
  color: var(--mist);
  font-size: 15px;
}

.page-contact .contact-card__hint {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist-dim);
}

.page-contact .contact-card__note {
  margin: 16px 0 0;
  padding: 12px 14px;
  border-left: 3px solid var(--cyan);
  background: rgba(47, 227, 198, 0.08);
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 右栏节奏 ---------- */
.page-contact .contact-flow {
  display: grid;
  gap: 44px;
  min-width: 0;
}

.page-contact .flow-section {
  min-width: 0;
}

.page-contact .flow-section__head h2 {
  margin: 8px 0 0;
  font-family: var(--font-title);
  font-size: clamp(24px, 4.6vw, 34px);
  font-weight: 800;
  line-height: 1.14;
  color: var(--paper);
}

/* ---------- 渠道适配 ---------- */
.page-contact .routing {
  display: grid;
  gap: 26px;
  margin-top: 24px;
}

.page-contact .route-list {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: route;
}

.page-contact .route-list__item {
  position: relative;
  padding: 18px 18px 18px 22px;
  background: var(--panel);
  border-left: 2px solid var(--line);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .route-list__item::before {
  counter-increment: route;
  content: "0" counter(route);
  position: absolute;
  top: 14px;
  right: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist-dim);
}

.page-contact .route-list__item:hover {
  border-left-color: var(--cyan);
  transform: translateX(2px);
}

.page-contact .route-list__item h3 {
  margin: 10px 0 6px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--paper);
}

.page-contact .route-list__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
  max-width: 44ch;
}

.page-contact .contact-side {
  margin: 0;
}

.page-contact .contact-side .img-frame {
  background: var(--panel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut-sm)), calc(100% - var(--cut-sm)) 100%, 0 100%);
  overflow: hidden;
}

.page-contact .contact-side img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.7) brightness(0.94);
}

.page-contact .contact-side .img-frame__caption {
  margin-top: 8px;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--mist-dim);
}

/* ---------- 反馈面板 ---------- */
.page-contact .form-panel {
  padding: 24px 18px 26px;
  background: var(--paper);
  color: var(--ink);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
}

.page-contact .form-panel .eyebrow {
  color: var(--teal);
}

.page-contact .form-panel .flow-section__head h2 {
  color: var(--ink);
}

.page-contact .form-panel__lead {
  margin: 12px 0 0;
  font-size: 15.5px;
  line-height: 1.7;
  color: #2f4a41;
  max-width: 52ch;
}

/* 主题选择 */
.page-contact .topic {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid rgba(29, 74, 60, 0.22);
}

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

.page-contact .topic__label {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--teal);
}

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

.page-contact .topic__chip {
  display: inline-flex;
  align-items: center;
  padding: 9px 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  background: transparent;
  border: 1px solid rgba(29, 74, 60, 0.45);
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
    border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
}

.page-contact .topic__chip:hover {
  border-color: var(--teal);
  background: rgba(15, 143, 128, 0.1);
}

.page-contact .topic__chip:has(input:checked) {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
  font-weight: 700;
}

.page-contact .topic__chip:has(input:focus-visible) {
  box-shadow: var(--focus-ring);
}

.page-contact .topic__note {
  display: block;
  margin: 16px 0 0;
  padding: 12px 14px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink);
  border-left: 3px solid var(--orange);
  background: rgba(240, 122, 60, 0.12);
}

.page-contact .topic:has(input:checked) .topic__note {
  display: none;
}

.page-contact .topic:has(#topic-schedule:checked) .topic__note--schedule,
.page-contact .topic:has(#topic-team:checked) .topic__note--team,
.page-contact .topic:has(#topic-venue:checked) .topic__note--venue,
.page-contact .topic:has(#topic-coop:checked) .topic__note--coop {
  display: block;
}

/* 字段 */
.page-contact .fields {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 24px;
}

.page-contact .field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.page-contact .field label {
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #2f4a41;
}

.page-contact .field input,
.page-contact .field textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 11px 12px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink);
  background: #ffffff;
  border: 1px solid rgba(29, 74, 60, 0.4);
  border-radius: 0;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .field textarea {
  resize: vertical;
  min-height: 108px;
}

.page-contact .field input::placeholder,
.page-contact .field textarea::placeholder {
  color: #7e948b;
}

.page-contact .field input:focus,
.page-contact .field textarea:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: var(--focus-ring);
}

/* 自检 */
.page-contact .preflight {
  margin-top: 24px;
  padding: 16px 18px;
  background: rgba(8, 23, 19, 0.06);
  border-top: 2px solid var(--gold);
}

.page-contact .preflight__title {
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--ink);
}

.page-contact .preflight__list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
  font-size: 14px;
  line-height: 1.65;
  color: #2f4a41;
}

.page-contact .form-panel__send {
  margin-top: 22px;
  display: grid;
  gap: 14px;
}

.page-contact .form-panel__send p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: #2f4a41;
}

.page-contact .form-panel__send .mono {
  color: var(--ink);
  font-weight: 700;
  word-break: break-all;
}

.page-contact .form-panel__send .btn--outline {
  justify-self: start;
  color: var(--ink);
  border-color: var(--line);
}

.page-contact .form-panel__send .btn--outline:hover {
  color: var(--ink);
  border-color: var(--teal);
  background: rgba(15, 143, 128, 0.12);
}

/* ---------- 合作 ---------- */
.page-contact .coop-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 24px;
}

.page-contact .coop-card {
  padding: 20px 18px;
  background: var(--panel);
  border-top: 2px solid var(--line);
  clip-path: polygon(0 0, calc(100% - var(--cut-sm)) 0, 100% var(--cut-sm), 100% 100%, 0 100%);
  transition: border-color var(--dur) var(--ease);
}

.page-contact .coop-card:hover {
  border-top-color: var(--gold);
}

.page-contact .coop-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-title);
  font-size: 21px;
  font-weight: 800;
  color: var(--gold-soft);
}

.page-contact .coop-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .coop-card__start {
  margin-top: 12px !important;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 13.5px !important;
  color: var(--mist-dim) !important;
}

/* ---------- 时效 ---------- */
.page-contact .hours {
  margin-top: 24px;
}

.page-contact .hours__scale {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

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

.page-contact .hours__track {
  position: relative;
  flex: 1;
  height: 2px;
  background: var(--line);
}

.page-contact .hours__fill {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--gold), var(--cyan));
  clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}

.page-contact .hours__list {
  display: grid;
  gap: 0;
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .hours__list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--line);
}

.page-contact .hours__list li:last-child {
  border-bottom: 0;
}

.page-contact .hours__num {
  font-size: 15px;
  font-weight: 700;
  color: var(--gold-soft);
  letter-spacing: 0.02em;
}

.page-contact .hours__list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mist);
  max-width: 54ch;
}

/* ---------- 快捷入口 ---------- */
.page-contact .ask-links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 22px;
}

.page-contact .ask-link {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  text-decoration: none;
  background: rgba(16, 42, 35, 0.72);
  border-left: 3px solid var(--line);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}

.page-contact .ask-link:hover,
.page-contact .ask-link:focus-visible {
  border-left-color: var(--cyan);
  background: var(--panel);
  transform: translateX(2px);
}

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

.page-contact .ask-link__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .ask-link__desc {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--mist-dim);
}

.page-contact .flow-section--last {
  padding-top: 32px;
  border-top: 1px solid var(--line);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-contact .contact-hero__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
  }

  .page-contact .contact-hero__stats > div {
    display: block;
    padding-right: 8px;
    border-right: 1px dashed var(--line);
  }

  .page-contact .contact-hero__stats > div:last-child {
    border-right: 0;
    padding-right: 0;
  }

  .page-contact .contact-hero__stats dd {
    margin-top: 6px;
    font-size: 22px;
  }

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

  .page-contact .field--full {
    grid-column: 1 / -1;
  }

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

@media (min-width: 760px) {
  .page-contact .routing {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
    gap: 28px;
  }

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

  .page-contact .hours__list li {
    grid-template-columns: 132px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }

  .page-contact .form-panel {
    padding: 30px 28px 32px;
  }

  .page-contact .form-panel__send {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 20px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: center;
    gap: 44px;
    padding-block: 36px 52px;
  }

  .page-contact .contact-hero__media img {
    aspect-ratio: 4 / 3;
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-desk {
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
    padding-block: 48px 0;
  }

  .page-contact .contact-card {
    position: sticky;
    top: calc(var(--masthead-h) + 24px);
    padding: 26px 22px 24px;
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-desk {
    grid-template-columns: 344px minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .route-list__item,
  .page-contact .coop-card,
  .page-contact .ask-link {
    transition: none;
  }

  .page-contact .route-list__item:hover,
  .page-contact .ask-link:hover,
  .page-contact .ask-link:focus-visible {
    transform: none;
  }
}
</main>