.page-contact {
  display: block;
  padding-bottom: clamp(56px, 9vw, 110px);
}

.page-contact .crumbs {
  padding-top: clamp(18px, 3vw, 30px);
  font-size: 14px;
}

/* ===== 首屏 ===== */
.page-contact .contact-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 44px);
  margin-top: clamp(18px, 3vw, 32px);
  padding-top: clamp(22px, 3.5vw, 40px);
  border-top: 1px solid var(--line);
}

@media (min-width: 960px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
  }
}

.page-contact .contact-hero__copy h1 {
  margin: 14px 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 5.4vw, 66px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--text);
  text-wrap: balance;
}

@media (min-width: 960px) {
  .page-contact .contact-hero__copy h1 {
    transform: skew(-2deg);
    transform-origin: left center;
  }
}

.page-contact .contact-hero__copy .lede {
  max-width: 36em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.75;
  color: var(--text-soft);
}

.page-contact .contact-hero__visual {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
  aspect-ratio: 3 / 2;
}

.page-contact .contact-hero__visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

.page-contact .contact-hero__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(200deg, rgba(53, 240, 208, 0.14) 0%, rgba(6, 17, 15, 0.7) 64%),
    repeating-linear-gradient(0deg, rgba(6, 17, 15, 0.18) 0 1px, transparent 1px 5px);
}

/* ===== 渠道 + 模板 分屏 ===== */
.page-contact .contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
  margin-top: clamp(48px, 7vw, 88px);
}

@media (min-width: 1000px) {
  .page-contact .contact-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

.page-contact .contact-grid__main .section__note {
  max-width: 44em;
  color: var(--muted);
  font-size: 15px;
}

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

.page-contact .channel-card {
  position: relative;
  padding: clamp(18px, 2.4vw, 24px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  backdrop-filter: blur(6px);
  transition:
    border-color var(--dur-h) var(--ease),
    border-left-color var(--dur-h) var(--ease),
    background-color var(--dur-h) var(--ease),
    transform var(--dur-h) var(--ease);
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  border-color: rgba(53, 240, 208, 0.42);
  border-left-color: var(--blade);
  background: rgba(20, 58, 49, 0.74);
  transform: translateX(4px);
}

.page-contact .channel-card__top {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.page-contact .channel-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(6, 17, 15, 0.6);
  color: var(--blade-dim);
  transition: color var(--dur-h) var(--ease), border-color var(--dur-h) var(--ease);
}

.page-contact .channel-card:hover .channel-card__icon,
.page-contact .channel-card:focus-within .channel-card__icon {
  color: var(--blade);
  border-color: var(--blade);
}

.page-contact .channel-card__name {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--text);
}

.page-contact .channel-card__chip {
  margin-left: auto;
}

.page-contact .channel-card__value {
  margin: 14px 0 0;
  font-size: clamp(15px, 1.8vw, 19px);
  letter-spacing: 0.02em;
  color: var(--blade);
  word-break: break-all;
}

.page-contact .channel-card__desc {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-contact .channel-card__meta {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.page-contact .channel-card__go {
  display: inline-block;
  margin-top: 12px;
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur-h) var(--ease), border-color var(--dur-h) var(--ease);
}

.page-contact .channel-card__go:hover {
  color: var(--text);
  border-bottom-color: var(--blade);
}

/* ===== 反馈模板卡 ===== */
.page-contact .feedback-sheet {
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--line);
  border-top: 3px solid var(--flame);
  border-radius: var(--radius);
  background: var(--ink-3);
}

.page-contact .feedback-sheet__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .feedback-sheet__title {
  margin: 12px 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-contact .feedback-sheet__intro {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-contact .field-list {
  margin: 22px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .field-list__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  padding: 11px 12px;
  border-bottom: 1px solid var(--line);
  border-left: 2px solid transparent;
  transition: border-left-color var(--dur-h) var(--ease), background-color var(--dur-h) var(--ease);
}

.page-contact .field-list__row:hover,
.page-contact .field-list__row:focus-within {
  border-left-color: var(--blade);
  background: rgba(53, 240, 208, 0.06);
}

@media (min-width: 560px) {
  .page-contact .field-list__row {
    grid-template-columns: minmax(84px, 34%) minmax(0, 1fr);
    align-items: baseline;
    gap: 10px;
  }
}

.page-contact .field-list__key {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.page-contact .field-list__val {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
  word-break: break-word;
}

.page-contact .feedback-sheet__foot {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .feedback-sheet .btn {
  display: flex;
  width: 100%;
  margin-top: 20px;
  justify-content: center;
}

/* ===== 响应节奏 ===== */
.page-contact .contact-rhythm {
  margin-top: clamp(48px, 7vw, 88px);
}

.page-contact .contact-rhythm__head {
  max-width: 40em;
}

.page-contact .rhythm-list {
  display: grid;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

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

@media (min-width: 760px) {
  .page-contact .rhythm-list__item {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    gap: clamp(20px, 4vw, 56px);
    align-items: baseline;
  }
}

.page-contact .rhythm-list__key {
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--blade);
}

.page-contact .rhythm-list__val {
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-contact .contact-rhythm__note,
.page-contact .contact-aside-links {
  max-width: 62em;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .contact-rhythm__note {
  margin: 24px 0 0;
}

.page-contact .contact-aside-links {
  margin: 14px 0 0;
}

.page-contact .contact-rhythm__note a,
.page-contact .contact-aside-links a,
.page-contact .filing-band__note a {
  color: var(--text-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color var(--dur-h) var(--ease), border-bottom-color var(--dur-h) var(--ease);
}

.page-contact .contact-rhythm__note a:hover,
.page-contact .contact-aside-links a:hover,
.page-contact .filing-band__note a:hover {
  color: var(--blade);
  border-bottom-color: var(--blade);
}

/* ===== 备案信息带 ===== */
.page-contact .filing-band {
  position: relative;
  margin-top: clamp(52px, 8vw, 96px);
  padding: clamp(34px, 5vw, 60px) 0;
  border-top: 1px solid var(--blade);
  border-bottom: 1px solid var(--line);
  background: var(--ink-2);
  overflow: hidden;
}

.page-contact .filing-band__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.22;
  pointer-events: none;
}

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

.page-contact .filing-band .container {
  position: relative;
  z-index: 1;
}

.page-contact .filing-band__title {
  font-size: clamp(20px, 2.4vw, 28px);
  margin: 0 0 clamp(18px, 2.5vw, 26px);
}

.page-contact .filing-list {
  display: grid;
  grid-template-columns: 1fr;
  margin: 0;
  padding: 0;
}

@media (min-width: 820px) {
  .page-contact .filing-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(20px, 4vw, 48px);
  }
}

.page-contact .filing-list__row {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  transition: border-color var(--dur-h) var(--ease);
}

@media (min-width: 820px) {
  .page-contact .filing-list__row {
    border-bottom: 0;
    border-top: 1px solid var(--line);
    padding-top: 14px;
  }
}

.page-contact .filing-list__row:hover {
  border-color: var(--blade);
}

.page-contact .filing-list__key {
  display: block;
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color var(--dur-h) var(--ease);
}

.page-contact .filing-list__row:hover .filing-list__key {
  color: var(--blade);
}

.page-contact .filing-list__val {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text);
  word-break: break-word;
}

.page-contact .filing-band__note {
  margin: clamp(20px, 3vw, 30px) 0 0;
  max-width: 62em;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}