/* ===== 联系入口 | page-contact ===== */
.page-contact {
  --contact-glow-green: rgba(0, 255, 135, 0.14);
  --contact-glow-orange: rgba(255, 106, 0, 0.09);
  --contact-glow-blue: rgba(0, 191, 255, 0.1);
  --contact-ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  position: relative;
  background: var(--primary-bg);
  color: var(--text-high);
  overflow-x: hidden;
}

/* hero */
.page-contact .contact-hero {
  position: relative;
  padding: calc(var(--header-h) + 28px) 20px 40px;
  background:
    radial-gradient(52rem 24rem at 84% -12%, var(--contact-glow-green) 0%, transparent 68%),
    radial-gradient(30rem 18rem at 6% 24%, var(--contact-glow-blue) 0%, transparent 70%),
    var(--primary-bg);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.022) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--container-w);
  margin: 0 auto;
}

.page-contact .contact-hero__glow {
  position: absolute;
  right: -80px;
  bottom: 8px;
  width: 520px;
  height: 160px;
  transform: rotate(-10deg);
  background: linear-gradient(90deg, transparent 0%, rgba(0, 255, 135, 0.18) 22%, rgba(0, 191, 255, 0.1) 58%, transparent 100%);
  border-radius: var(--radius-pill);
  filter: blur(26px);
  pointer-events: none;
  opacity: 0.8;
}

.page-contact .contact-hero__grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin: 28px 0 32px;
}

.page-contact .contact-hero__content h1 {
  margin: 0 0 12px;
  font-size: clamp(34px, 5vw, 48px);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.page-contact .contact-hero__lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-mid);
  max-width: 56ch;
}

.page-contact .contact-hero__status {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  width: fit-content;
  padding: 12px 18px;
  background: rgba(17, 24, 39, 0.65);
  border: 1px solid rgba(0, 255, 135, 0.2);
  border-radius: var(--radius-pill);
}

.page-contact .contact-hero__status-dot {
  width: 10px;
  height: 10px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 0 0 rgba(0, 255, 135, 0.45);
  animation: page-contact-pulse 2.6s var(--contact-ease) infinite;
}

@keyframes page-contact-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(0, 255, 135, 0.45);
  }
  70% {
    box-shadow: 0 0 0 12px rgba(0, 255, 135, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(0, 255, 135, 0);
  }
}

.page-contact .contact-hero__status-label {
  margin: 0;
  font-size: 12px;
  line-height: 1.4;
  color: var(--text-low);
}

.page-contact .contact-hero__status-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.4;
  color: var(--text-high);
}

/* breadcrumb */
.page-contact .breadcrumb {
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-mid);
}

.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .breadcrumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--text-low);
}

.page-contact .breadcrumb a {
  color: var(--text-mid);
  text-decoration: none;
  transition: var(--transition);
}

.page-contact .breadcrumb a:hover {
  color: var(--accent-green);
}

.page-contact .breadcrumb li[aria-current="page"] {
  color: var(--text-high);
}

/* anchor row */
.page-contact .contact-anchor-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .contact-anchor-row__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1;
  color: var(--text-mid);
  background: var(--secondary-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  text-decoration: none;
  transition: var(--transition);
}

.page-contact .contact-anchor-row__item:hover,
.page-contact .contact-anchor-row__item:focus-visible {
  color: var(--accent-green);
  border-color: rgba(0, 255, 135, 0.4);
  transform: translateY(-1px);
  outline: none;
}

/* main two columns */
.page-contact .contact-main {
  display: flex;
  flex-direction: column;
  gap: 80px;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 56px 20px 80px;
}

.page-contact .contact-info-col,
.page-contact .contact-feedback-col {
  display: flex;
  flex-direction: column;
}

/* section index */
.page-contact .section-index {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.page-contact .section-index__code {
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-green);
  background: rgba(0, 255, 135, 0.08);
  border: 1px solid rgba(0, 255, 135, 0.22);
  border-radius: var(--radius-pill);
}

.page-contact .section-index__line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(0, 255, 135, 0.28), rgba(0, 255, 135, 0));
}

/* headings */
.page-contact .contact-info-col h2,
.page-contact .contact-feedback-col h2,
.page-contact .contact-support h2 {
  margin: 0 0 12px;
  font-size: clamp(24px, 3vw, 30px);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.page-contact .contact-section-lead {
  margin: 0 0 24px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-mid);
  max-width: 58ch;
}

/* contact cards */
.page-contact .contact-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-top: 12px;
  padding: 20px;
  background: var(--secondary-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.page-contact .contact-card:hover {
  border-color: rgba(0, 255, 135, 0.3);
  box-shadow: 0 16px 32px -20px rgba(0, 0, 0, 0.6);
  transform: translateY(-2px);
}

.page-contact .contact-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  color: var(--accent-green);
  background: rgba(0, 255, 135, 0.08);
  border: 1px solid rgba(0, 255, 135, 0.22);
  border-radius: 14px;
}

.page-contact .contact-card__body {
  flex: 1;
  min-width: 0;
}

.page-contact .contact-card__title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
}

.page-contact .contact-card__link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-high);
  text-decoration: none;
  border-bottom: 1px dashed rgba(0, 255, 135, 0.45);
  word-break: break-all;
  transition: var(--transition);
}

.page-contact .contact-card__link:hover {
  color: var(--accent-green);
  border-bottom-style: solid;
}

.page-contact .contact-card__link--static {
  border-bottom: none;
  color: var(--text-mid);
  word-break: keep-all;
}

.page-contact .contact-card__note {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-mid);
}

/* left image */
.page-contact .contact-info-image {
  display: block;
  width: 100%;
  max-width: 600px;
  height: auto;
  margin-top: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  object-fit: cover;
}

/* stat strip */
.page-contact .contact-stat-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 24px;
}

.page-contact .contact-stat-strip__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 16px 8px;
  text-align: center;
  background: var(--secondary-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.page-contact .contact-stat-strip__num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--accent-green);
}

.page-contact .contact-stat-strip__label {
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.4;
  color: var(--text-mid);
}

/* right image */
.page-contact .contact-feedback-image {
  display: block;
  width: 100%;
  max-width: 800px;
  height: auto;
  margin-bottom: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  object-fit: cover;
}

/* feedback process */
.page-contact .feedback-process h3 {
  margin: 0 0 14px;
  font-size: 18px;
  font-weight: 700;
}

.page-contact .feedback-process__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .feedback-process__item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px;
  background: var(--secondary-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.page-contact .feedback-process__item:hover {
  border-color: rgba(0, 191, 255, 0.35);
}

.page-contact .feedback-process__num {
  flex-shrink: 0;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--data-blue);
  background: rgba(0, 191, 255, 0.1);
  border: 1px solid rgba(0, 191, 255, 0.2);
  border-radius: var(--radius-pill);
}

.page-contact .feedback-process__title {
  display: block;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-high);
}

.page-contact .feedback-process__desc {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-mid);
}

/* form preview (static UI) */
.page-contact .contact-form-preview {
  margin-top: 28px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 48px -28px rgba(0, 0, 0, 0.6);
  overflow: hidden;
}

.page-contact .contact-form-preview__bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  background: var(--secondary-bg);
  border-bottom: 1px solid var(--border);
}

.page-contact .contact-form-preview__bar .terminal-dot {
  width: 10px;
  height: 10px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--border);
}

.page-contact .contact-form-preview__bar .terminal-dot:nth-child(1) {
  background: #ff5f57;
}

.page-contact .contact-form-preview__bar .terminal-dot:nth-child(2) {
  background: #febc2e;
}

.page-contact .contact-form-preview__bar .terminal-dot:nth-child(3) {
  background: #28c840;
}

.page-contact .contact-form-preview__bar-label {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.4;
  color: var(--text-mid);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.page-contact .contact-form-preview__inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 22px;
}

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

.page-contact .contact-form-preview__label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-mid);
}

.page-contact .contact-form-preview__value {
  display: block;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-high);
  background: var(--primary-bg);
  border: 1px dashed var(--border);
  border-radius: var(--radius-md);
  padding: 12px 14px;
}

.page-contact .contact-form-preview__value--area {
  min-height: 88px;
  font-family: var(--font-sans);
  color: var(--text-mid);
}

.page-contact .contact-form-preview__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .contact-form-preview__chip {
  padding: 8px 14px;
  font-size: 13px;
  line-height: 1;
  color: var(--text-mid);
  border: 1px dashed var(--border);
  border-radius: var(--radius-pill);
  transition: var(--transition);
}

.page-contact .contact-form-preview__chip--active {
  color: var(--accent-green);
  background: rgba(0, 255, 135, 0.08);
  border: 1px solid rgba(0, 255, 135, 0.4);
}

.page-contact .contact-form-preview__notice {
  display: flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  padding: 8px 12px;
  font-size: 12px;
  line-height: 1.4;
  color: var(--accent-orange);
  background: rgba(255, 106, 0, 0.08);
  border: 1px solid rgba(255, 106, 0, 0.2);
  border-radius: var(--radius-pill);
}

.page-contact .contact-form-preview__submit {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--primary-bg);
  background: var(--accent-green);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
}

.page-contact .contact-form-preview__submit:hover {
  box-shadow: 0 12px 28px -10px rgba(0, 255, 135, 0.4);
  filter: brightness(1.08);
  transform: translateY(-1px);
}

/* support */
.page-contact .contact-support {
  padding: 56px 20px 64px;
  background: var(--secondary-bg);
  border-top: 1px solid var(--border);
}

.page-contact .contact-support__inner {
  max-width: var(--container-w);
  margin: 0 auto;
}

.page-contact .contact-support__grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 28px;
}

.page-contact .contact-support-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--text-high);
  transition: var(--transition);
}

.page-contact .contact-support-card:hover,
.page-contact .contact-support-card:focus-visible {
  border-color: rgba(0, 255, 135, 0.35);
  box-shadow: 0 20px 40px -20px rgba(0, 0, 0, 0.6);
  transform: translateY(-3px);
  outline: none;
}

.page-contact .contact-support-card__route {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-green);
}

.page-contact .contact-support-card__title {
  font-size: 18px;
  font-weight: 700;
}

.page-contact .contact-support-card__desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-mid);
}

/* trust */
.page-contact .contact-trust {
  padding: 40px 20px;
  background: var(--primary-bg);
  border-top: 1px solid var(--border);
}

.page-contact .contact-trust__inner {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: var(--container-w);
  margin: 0 auto;
  padding-left: 18px;
  border-left: 2px solid var(--accent-green);
}

.page-contact .contact-trust__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-mid);
  max-width: 76ch;
}

.page-contact .contact-trust__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-low);
}

/* responsive */
@media (min-width: 800px) {
  .page-contact .contact-support__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 860px) {
  .page-contact .contact-hero {
    padding: calc(var(--header-h) + 56px) 20px 48px;
  }

  .page-contact .contact-hero__grid {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    gap: 32px;
    margin: 36px 0 40px;
  }

  .page-contact .contact-hero__lead {
    font-size: 17px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-main {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 56px;
    align-items: start;
    padding-top: 72px;
  }

  .page-contact .contact-info-col {
    position: sticky;
    top: calc(var(--header-h-scrolled) + 24px);
  }
}