.page-contact {
  max-width: var(--shell-wide);
  margin: 0 auto;
  padding: clamp(20px, 3vw, 36px) var(--gutter) clamp(56px, 8vw, 104px);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  overflow-x: hidden;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  font-family: var(--font-display);
  margin: 0;
  letter-spacing: -0.015em;
  line-height: 1.15;
}

.page-contact h1 {
  font-size: clamp(2rem, 5.2vw, 3.6rem);
  font-weight: 800;
}

.page-contact h2 {
  font-size: clamp(1.35rem, 2.6vw, 2.05rem);
  font-weight: 800;
}

.page-contact h3 {
  font-size: clamp(1.02rem, 1.6vw, 1.24rem);
  font-weight: 700;
}

.page-contact p {
  margin: 0;
}

.page-contact .breadcrumb {
  margin-bottom: clamp(18px, 2.6vw, 30px);
  font-size: 0.82rem;
}

.page-contact .section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--blue);
  text-transform: uppercase;
  margin: 0 0 10px;
}

.page-contact .section-head {
  max-width: 780px;
}

.page-contact .section-head__lead {
  margin-top: 12px;
  color: rgba(10, 12, 18, 0.72);
  font-size: clamp(0.95rem, 1.1vw, 1.04rem);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  display: grid;
  gap: clamp(24px, 3.4vw, 44px);
  align-items: end;
  padding-bottom: clamp(30px, 4.4vw, 56px);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-hero__text {
  position: relative;
  padding-top: clamp(8px, 2vw, 20px);
}

.page-contact .contact-hero__text h1 {
  max-width: 17ch;
}

.page-contact .contact-hero__lead {
  margin-top: 18px;
  color: rgba(10, 12, 18, 0.76);
  font-size: clamp(0.96rem, 1.2vw, 1.08rem);
  max-width: 62ch;
}

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

.page-contact .contact-hero__media {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  box-shadow: 0 34px 60px -46px rgba(10, 12, 18, 0.7);
}

.page-contact .contact-hero__media::after {
  content: "";
  position: absolute;
  right: -26px;
  bottom: -26px;
  width: 108px;
  height: 108px;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 32%, var(--orange), transparent 68%);
  opacity: 0.55;
  pointer-events: none;
  z-index: -1;
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: calc(var(--radius-lg) - 1px);
  object-fit: cover;
}

.page-contact .media-frame-caption {
  display: block;
  padding: 12px 4px 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: rgba(10, 12, 18, 0.58);
}

/* ---------- 直达通道 ---------- */
.page-contact .channels {
  margin-top: clamp(46px, 6vw, 84px);
}

.page-contact .channel-grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(20px, 2.6vw, 30px);
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 2.6vw, 32px) clamp(20px, 2.6vw, 32px) clamp(22px, 2.6vw, 32px) clamp(24px, 3vw, 36px);
  background: var(--mist);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 5px;
  background: var(--blue);
}

.page-contact .channel-card__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--blue);
  text-transform: uppercase;
  margin: 0;
}

.page-contact .channel-card__value {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 1.7vw, 1.3rem);
  font-weight: 600;
  color: var(--ink);
  margin: 0;
  word-break: break-all;
}

.page-contact .channel-card__note {
  color: rgba(10, 12, 18, 0.7);
  font-size: 0.94rem;
  margin: 0;
}

.page-contact .channel-card--accent {
  background: linear-gradient(152deg, var(--navy), var(--night));
  border-color: transparent;
  color: #fff;
}

.page-contact .channel-card--accent::before {
  background: var(--orange);
}

.page-contact .channel-card--accent .channel-card__label {
  color: var(--lime);
}

.page-contact .channel-card--accent .channel-card__value {
  color: #fff;
}

.page-contact .channel-card--accent .channel-card__note {
  color: rgba(255, 255, 255, 0.74);
}

/* 复制按钮 */
.page-contact .copy-btn {
  align-self: flex-start;
  margin-top: 6px;
  padding: 8px 16px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: inherit;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  background: var(--orange);
  border-color: var(--orange);
  color: #fff;
}

.page-contact .channel-card--accent .copy-btn {
  border-color: rgba(255, 255, 255, 0.34);
  color: #fff;
}

.page-contact .channel-card--accent .copy-btn:hover,
.page-contact .channel-card--accent .copy-btn:focus-visible {
  background: var(--orange);
  border-color: var(--orange);
}

/* ---------- 联络地址 ---------- */
.page-contact .address-block {
  margin-top: clamp(48px, 6.4vw, 88px);
  display: grid;
  gap: clamp(24px, 3.2vw, 42px);
  align-items: center;
}

.page-contact .address-block__text h2 {
  margin-bottom: 14px;
}

.page-contact .address-block__text > p {
  color: rgba(10, 12, 18, 0.76);
  max-width: 56ch;
}

.page-contact .address-block__media {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  overflow: hidden;
  background: var(--mist);
}

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

.page-contact .address-block .contact-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  margin-top: 22px;
  padding: 14px 16px;
  background: var(--mist);
  border-left: 4px solid var(--orange);
  border-radius: var(--radius-sm);
}

.page-contact .contact-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: rgba(10, 12, 18, 0.55);
  text-transform: uppercase;
}

.page-contact .contact-value {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--ink);
}

.page-contact .address-block__hint {
  margin-top: 14px;
  font-size: 0.9rem;
  color: rgba(10, 12, 18, 0.58);
}

/* ---------- 合作方向 ---------- */
.page-contact .cooperation {
  margin-top: clamp(48px, 6.4vw, 88px);
}

.page-contact .coop-grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(20px, 2.6vw, 30px);
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .coop-item {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(22px, 2.6vw, 32px);
  background: var(--paper);
  transition: background 0.3s var(--ease);
}

.page-contact .coop-item:hover {
  background: var(--mist);
}

.page-contact .coop-item__idx {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--orange);
  margin: 0;
}

.page-contact .coop-item p {
  color: rgba(10, 12, 18, 0.74);
  font-size: 0.95rem;
}

/* ---------- 支持范围 ---------- */
.page-contact .support {
  margin-top: clamp(48px, 6.4vw, 88px);
}

.page-contact .support-list {
  list-style: none;
  margin: clamp(20px, 2.6vw, 30px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .support-row {
  display: grid;
  gap: 6px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .support-row__topic {
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.4vw, 1.12rem);
  font-weight: 700;
  color: var(--ink);
}

.page-contact .support-row__desc {
  color: rgba(10, 12, 18, 0.7);
  font-size: 0.95rem;
}

.page-contact .support-row__channel {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--blue);
  text-transform: uppercase;
}

/* ---------- 快速说明 ---------- */
.page-contact .quick-form {
  position: relative;
  margin-top: clamp(48px, 6.4vw, 92px);
  padding: clamp(26px, 3.4vw, 48px);
  background: var(--night);
  color: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-contact .quick-form::before {
  content: "";
  position: absolute;
  top: -90px;
  right: -90px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 107, 26, 0.42), transparent 68%);
  pointer-events: none;
}

.page-contact .quick-form .section-label {
  color: var(--lime);
}

.page-contact .quick-form__head {
  position: relative;
  max-width: 640px;
}

.page-contact .quick-form__head h2 {
  color: #fff;
}

.page-contact .quick-form__head p {
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.96rem;
}

.page-contact .quick-form__body {
  position: relative;
  display: grid;
  gap: 18px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-contact .field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-contact .field__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--silver);
  text-transform: uppercase;
}

.page-contact .field input,
.page-contact .field select,
.page-contact .field textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 12px 14px;
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.96rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(201, 206, 216, 0.24);
  border-radius: var(--radius-sm);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}

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

.page-contact .field input::placeholder,
.page-contact .field textarea::placeholder {
  color: rgba(201, 206, 216, 0.6);
}

.page-contact .field input:focus,
.page-contact .field select:focus,
.page-contact .field textarea:focus {
  outline: none;
  border-color: var(--orange);
  background: rgba(255, 255, 255, 0.1);
}

.page-contact .field select option {
  color: var(--ink);
  background: #fff;
}

.page-contact .quick-form__foot {
  position: relative;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid rgba(201, 206, 216, 0.2);
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.66);
  word-break: break-word;
}

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

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

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

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

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: clamp(32px, 4vw, 68px);
  }

  .page-contact .contact-hero__media {
    transform: translateY(-12px);
  }

  .page-contact .address-block {
    grid-template-columns: minmax(0, 0.94fr) minmax(0, 1.06fr);
  }

  .page-contact .support-row {
    grid-template-columns: 200px minmax(0, 1fr) 220px;
    align-items: start;
    gap: 28px;
  }

  .page-contact .support-row__channel {
    text-align: right;
    padding-top: 4px;
  }
}

@media (min-width: 1180px) {
  .page-contact .coop-item:nth-child(2) {
    transform: translateY(-18px);
  }
}

@media (max-width: 719px) {
  .page-contact .contact-hero__media::after {
    right: -14px;
    bottom: -14px;
    width: 72px;
    height: 72px;
  }

  .page-contact .quick-form {
    border-radius: var(--radius);
  }
}