.page-contact {
  --pc-pad: clamp(46px, 6vw, 88px);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.7;
  overflow-x: clip;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-contact p {
  margin: 0;
}

.page-contact img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-contact .contact-wrap {
  box-sizing: border-box;
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-contact .contact-top {
  padding-top: clamp(16px, 3vw, 26px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-block: clamp(14px, 2.4vw, 22px) var(--pc-pad);
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: center;
}

.page-contact .contact-hero__kicker {
  display: inline-block;
  padding: 6px 11px;
  background: var(--jade-soft);
  color: var(--jade);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  border-radius: var(--radius);
}

.page-contact .contact-hero h1 {
  margin-top: 16px;
  font-size: clamp(34px, 7.4vw, 64px);
  line-height: 1.05;
  color: var(--ink-deep);
}

.page-contact .contact-hero h1 em {
  font-style: normal;
  color: var(--jade);
  box-shadow: inset 0 -0.16em 0 rgba(217, 72, 31, 0.22);
}

.page-contact .contact-hero__lead {
  margin-top: 18px;
  max-width: 46ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
}

.page-contact .contact-hero__chips {
  display: grid;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .chip {
  padding: 12px 14px;
  background: var(--paper-white);
  border: 1px solid var(--line);
  border-left: 3px solid var(--jade);
}

.page-contact .chip__k {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray);
}

.page-contact .chip__v {
  display: block;
  margin-top: 5px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink-deep);
  overflow-wrap: anywhere;
}

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

.page-contact .contact-hero__figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--jade-soft);
  border: 1px solid var(--line-strong);
  box-shadow: 8px 8px 0 var(--jade-soft);
}

.page-contact .contact-hero__cap {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gray);
}

/* ---------- 章节头 ---------- */
.page-contact .contact-head {
  max-width: 62ch;
  margin-bottom: clamp(22px, 3vw, 36px);
}

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

.page-contact .contact-head h2 {
  margin-top: 10px;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.16;
  color: var(--ink-deep);
}

.page-contact .contact-head__lead {
  margin-top: 12px;
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.78;
}

/* ---------- 联系方式 ---------- */
.page-contact .channels {
  padding-block: var(--pc-pad);
  background: var(--paper-white);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .channels__grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

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

.page-contact .channels__figure img {
  width: 100%;
  aspect-ratio: 12 / 7;
  object-fit: cover;
  background: var(--jade-soft);
  border: 1px solid var(--line);
}

.page-contact .channels__figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gray);
}

.page-contact .channels__cards {
  display: grid;
  gap: 12px;
}

.page-contact .channel {
  padding: 16px 18px;
  background: var(--paper);
  border: 1px solid var(--line);
}

.page-contact .channel--accent {
  background: var(--paper-white);
  border-left: 4px solid var(--cinnabar);
}

.page-contact .channel__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--jade);
}

.page-contact .channel__v {
  margin-top: 6px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(17px, 2.2vw, 21px);
  color: var(--ink-deep);
  overflow-wrap: anywhere;
}

.page-contact .channel__note {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--gray);
}

.page-contact .channel__note a {
  color: var(--cinnabar);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

/* ---------- 反馈区 ---------- */
.page-contact .feedback {
  padding-block: var(--pc-pad);
}

.page-contact .feedback__grid {
  display: grid;
  gap: clamp(24px, 3.4vw, 40px);
}

/* 分类标签 */
.page-contact .fb-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

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

.page-contact .fb-tabs__tab {
  flex: 1 1 auto;
  padding: 10px 12px;
  text-align: center;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  background: var(--paper-white);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .fb-tabs__input:focus-visible + .fb-tabs__tab {
  outline: 2px solid var(--cinnabar);
  outline-offset: 2px;
}

.page-contact .fb-tabs__panels {
  flex: 1 0 100%;
  margin-top: 10px;
}

.page-contact .fb-panel {
  display: none;
  padding: 16px 18px;
  background: var(--jade-soft);
  border: 1px solid var(--jade);
  border-radius: var(--radius);
}

.page-contact .fb-panel h3 {
  font-size: 16px;
  color: var(--ink-deep);
}

.page-contact .fb-panel p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--ink);
}

.page-contact #fb-entry:checked ~ .fb-tabs__panels .fb-panel--entry,
.page-contact #fb-display:checked ~ .fb-tabs__panels .fb-panel--display,
.page-contact #fb-switch:checked ~ .fb-tabs__panels .fb-panel--switch,
.page-contact #fb-search:checked ~ .fb-tabs__panels .fb-panel--search {
  display: block;
}

.page-contact #fb-entry:checked ~ label[for="fb-entry"],
.page-contact #fb-display:checked ~ label[for="fb-display"],
.page-contact #fb-switch:checked ~ label[for="fb-switch"],
.page-contact #fb-search:checked ~ label[for="fb-search"] {
  background: var(--jade);
  border-color: var(--jade);
  color: var(--paper-white);
}

/* 表单 */
.page-contact .fb-form {
  margin-top: clamp(20px, 3vw, 30px);
  padding: clamp(18px, 3vw, 28px);
  background: var(--paper-white);
  border: 1px solid var(--line-strong);
}

.page-contact .fb-form__title {
  font-size: clamp(19px, 2.4vw, 24px);
  color: var(--ink-deep);
}

.page-contact .fb-fields {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.page-contact .fb-label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .fb-input,
.page-contact .fb-select,
.page-contact .fb-textarea {
  box-sizing: border-box;
  width: 100%;
  padding: 10px 12px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--mist);
  border-radius: var(--radius);
}

.page-contact .fb-textarea {
  min-height: 118px;
  line-height: 1.65;
  resize: vertical;
}

.page-contact .fb-input:focus,
.page-contact .fb-select:focus,
.page-contact .fb-textarea:focus {
  outline: 2px solid var(--cinnabar);
  outline-offset: 1px;
  border-color: var(--cinnabar);
}

.page-contact .fb-form__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-top: 20px;
}

.page-contact .fb-form__actions .btn {
  display: inline-block;
  padding: 12px 20px;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid var(--cinnabar);
  border-radius: var(--radius);
  background: var(--cinnabar);
  color: var(--paper-white);
}

.page-contact .fb-form__note {
  flex: 1 1 220px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray);
}

/* 侧栏 */
.page-contact .side-card {
  padding: 18px;
  background: var(--paper-white);
  border: 1px solid var(--line-strong);
  border-top: 4px solid var(--cinnabar);
}

.page-contact .side-card__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cinnabar);
}

.page-contact .side-card h3 {
  margin-top: 8px;
  font-size: 18px;
  line-height: 1.34;
  color: var(--ink-deep);
}

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

.page-contact .side-list li {
  padding-top: 12px;
  border-top: 1px dashed var(--line-strong);
}

.page-contact .side-list a {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--jade);
  text-decoration: none;
}

.page-contact .side-list a:hover {
  color: var(--cinnabar);
}

.page-contact .side-list span {
  display: block;
  margin-top: 4px;
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--gray);
}

.page-contact .side-card__foot {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray);
  overflow-wrap: anywhere;
}

/* ---------- 处理流程 ---------- */
.page-contact .flow {
  padding-block: 0 var(--pc-pad);
}

.page-contact .flow__list {
  display: grid;
  gap: 10px;
}

.page-contact .flow__toggle {
  display: flex;
  gap: 12px;
  align-items: baseline;
  box-sizing: border-box;
  width: 100%;
  padding: 14px 16px;
  text-align: left;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15.5px;
  color: var(--ink-deep);
  background: var(--paper-white);
  border: 1px solid var(--line);
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .flow__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cinnabar);
}

.page-contact .flow__label {
  flex: 1 1 auto;
}

.page-contact .flow__time {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 400;
  color: var(--gray);
  white-space: nowrap;
}

.page-contact .flow__toggle[aria-expanded="true"] {
  background: var(--jade-soft);
  border-color: var(--jade);
}

.page-contact .flow__panel {
  padding: 14px 16px 16px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--paper-white);
  border: 1px solid var(--line);
  border-top: 0;
}

/* ---------- 来之前可准备 ---------- */
.page-contact .prep {
  padding-block: 0 var(--pc-pad);
}

.page-contact .prep__grid {
  display: grid;
  gap: 12px;
}

.page-contact .prep__item {
  padding: 18px;
  background: var(--paper-white);
  border: 1px solid var(--line);
}

.page-contact .prep__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-contact .prep__item h3 {
  margin-top: 8px;
  font-size: 17px;
  color: var(--ink-deep);
}

.page-contact .prep__item p:not(.prep__num) {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--gray);
}

/* ---------- 收束 ---------- */
.page-contact .contact-close {
  padding-block: clamp(34px, 5vw, 56px);
  background: var(--jade);
  color: var(--paper-white);
  border-top: 6px solid var(--cinnabar);
}

.page-contact .contact-close__grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-contact .contact-close__k {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--jade-soft);
}

.page-contact .contact-close__addr {
  margin-top: 12px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(19px, 2.6vw, 25px);
  line-height: 1.44;
  color: var(--paper-white);
}

.page-contact .contact-close__icp {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--jade-soft);
}

.page-contact .contact-close__links {
  border-top: 1px solid var(--line-light);
  padding-top: 18px;
}

.page-contact .contact-close__links .route-line {
  opacity: 0.7;
}

.page-contact .contact-close__links p {
  margin-top: 14px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--jade-soft);
}

.page-contact .contact-close__btns {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.page-contact .contact-close__btns .btn {
  display: inline-block;
  padding: 11px 18px;
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius);
  background: var(--paper-white);
  color: var(--ink-deep);
  border: 1px solid var(--paper-white);
}

.page-contact .contact-close__btns .btn--ghost {
  background: transparent;
  color: var(--paper-white);
  border-color: rgba(251, 248, 240, 0.55);
}

.page-contact .contact-close__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
  font-size: 13px;
  color: var(--jade-soft);
}

.page-contact .contact-close__legal a {
  color: var(--paper-white);
  text-decoration: none;
  border-bottom: 1px solid rgba(251, 248, 240, 0.42);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-hero__chips {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .contact-hero__figure img {
    box-shadow: 14px 14px 0 var(--jade-soft);
  }

  .page-contact .fb-tabs__tab {
    flex: 0 0 auto;
    padding: 10px 16px;
  }

  .page-contact .fb-fields {
    grid-template-columns: 1fr 1fr;
  }

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

@media (min-width: 700px) {
  .page-contact .channels__cards {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 760px) {
  .page-contact .prep__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  }

  .page-contact .contact-close__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 980px) {
  .page-contact .channels__grid {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-contact .feedback__grid {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, 0.72fr);
    align-items: start;
  }

  .page-contact .feedback__side {
    position: sticky;
    top: 92px;
  }
}