.page-contact {
  --ct-cut: 18px;
  --ct-cut-sm: 10px;
  padding: 22px 0 64px;
  background:
    radial-gradient(760px 460px at 94% -10%, rgba(40, 245, 210, 0.10), transparent 64%),
    radial-gradient(620px 420px at -8% 6%, rgba(124, 92, 255, 0.10), transparent 62%);
}

.page-contact .container {
  width: 100%;
  box-sizing: border-box;
}

.page-contact .breadcrumbs {
  margin-bottom: 18px;
  font-size: 13px;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  display: grid;
  gap: 14px;
  padding: 6px 0 22px;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .ct-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  font-size: clamp(36px, 9vw, 58px);
  color: var(--paper);
}

.page-contact .ct-hero__lead {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(15px, 3.7vw, 17px);
  line-height: 1.8;
  color: rgba(232, 245, 240, 0.84);
}

.page-contact .ct-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 2px;
}

.page-contact .ct-facts {
  list-style: none;
  margin: 6px 0 0;
  padding: 16px 0 0;
  display: grid;
  gap: 14px;
  border-top: 1px dashed var(--line-soft);
}

.page-contact .ct-facts__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  font-size: clamp(19px, 5vw, 27px);
  color: var(--cyan);
}

.page-contact .ct-facts__key {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

@media (min-width: 560px) {
  .page-contact .ct-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

/* ---------- 主体两栏 ---------- */
.page-contact .ct-layout {
  display: grid;
  gap: 22px;
  margin-top: 26px;
}

.page-contact .ct-aside,
.page-contact .ct-main {
  min-width: 0;
}

.page-contact .ct-main {
  display: grid;
  gap: 20px;
  align-content: start;
}

@media (min-width: 960px) {
  .page-contact .ct-layout {
    grid-template-columns: minmax(0, 356px) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }

  .page-contact .ct-aside {
    position: sticky;
    top: calc(var(--topbar-h) + 18px);
  }
}

/* ---------- 联系信息卡 ---------- */
.page-contact .ct-card {
  position: relative;
  padding: 20px 18px 18px;
  background: linear-gradient(155deg, var(--panel) 0%, var(--card) 58%, var(--panel) 100%);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - var(--ct-cut)) 0, 100% var(--ct-cut), 100% 100%, var(--ct-cut) 100%, 0 calc(100% - var(--ct-cut)));
}

.page-contact .ct-card__head {
  display: flex;
  align-items: center;
  gap: 9px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .ct-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--magenta);
  animation: ct-pulse 2.6s ease-out infinite;
}

@keyframes ct-pulse {
  0% { box-shadow: 0 0 0 0 rgba(255, 46, 136, 0.55); }
  70% { box-shadow: 0 0 0 9px rgba(255, 46, 136, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 46, 136, 0); }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-dot { animation: none; }
}

.page-contact .ct-channel {
  display: grid;
  gap: 5px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line-soft);
}

.page-contact .ct-channel:last-of-type {
  border-bottom: 0;
  padding-bottom: 6px;
}

.page-contact .ct-channel__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .ct-channel__value {
  font-family: var(--font-mono);
  font-size: clamp(14px, 3.9vw, 17px);
  font-weight: 600;
  line-height: 1.45;
  color: var(--cyan-soft);
  overflow-wrap: anywhere;
}

.page-contact .ct-channel--amber .ct-channel__value {
  color: var(--amber);
  font-size: clamp(17px, 4.6vw, 21px);
  letter-spacing: 0.01em;
}

.page-contact .ct-channel--amber {
  border-left: 2px solid var(--amber);
  padding-left: 12px;
  margin-left: -2px;
}

.page-contact .ct-channel__note {
  font-size: 13px;
  line-height: 1.72;
  color: rgba(232, 245, 240, 0.66);
}

.page-contact .ct-card__foot {
  margin: 12px 0 0;
  padding: 12px 12px 12px 14px;
  background: rgba(2, 8, 6, 0.5);
  border-left: 2px solid var(--magenta);
  font-size: 13px;
  line-height: 1.72;
  color: rgba(232, 245, 240, 0.82);
}

.page-contact .ct-figure {
  margin: 18px 0 0;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: var(--black);
  clip-path: polygon(0 0, calc(100% - var(--ct-cut)) 0, 100% var(--ct-cut), 100% 100%, var(--ct-cut) 100%, 0 calc(100% - var(--ct-cut)));
}

.page-contact .ct-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.04);
}

.page-contact .ct-figure figcaption {
  padding: 11px 14px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
  background: rgba(2, 8, 6, 0.72);
  border-top: 1px solid var(--line-soft);
}

/* ---------- 通用块 ---------- */
.page-contact .ct-block {
  padding: 20px 18px;
  background: linear-gradient(180deg, rgba(12, 42, 34, 0.94), rgba(7, 26, 22, 0.94));
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--cyan);
  clip-path: polygon(0 0, calc(100% - var(--ct-cut)) 0, 100% var(--ct-cut), 100% 100%, var(--ct-cut) 100%, 0 calc(100% - var(--ct-cut)));
}

.page-contact .ct-block--form {
  border-top-color: var(--amber);
}

.page-contact .ct-block h2,
.page-contact .ct-coop-wrap h2,
.page-contact .ct-shortcut h2 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.15;
  font-size: clamp(22px, 5.6vw, 30px);
  color: var(--paper);
}

.page-contact .ct-block__lead {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(232, 245, 240, 0.76);
  max-width: 62ch;
}

/* ---------- 分类选择 ---------- */
.page-contact .feedback-cats {
  display: grid;
  gap: 14px;
  margin-top: 16px;
}

.page-contact .cat-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-contact .cat-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .cat-chip {
  cursor: pointer;
  padding: 9px 14px;
  font-size: 13.5px;
  line-height: 1;
  color: var(--muted);
  background: rgba(2, 8, 6, 0.45);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 9px 100%, 0 calc(100% - 9px));
  transition: color 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}

.page-contact .cat-chip:hover {
  color: var(--cyan-soft);
  border-color: var(--cyan);
}

.page-contact .cat-input:focus-visible ~ .cat-chips {
  outline: 1px dashed var(--cyan-soft);
  outline-offset: 5px;
}

.page-contact #cat-account:checked ~ .cat-chips label[for="cat-account"],
.page-contact #cat-sub:checked ~ .cat-chips label[for="cat-sub"],
.page-contact #cat-download:checked ~ .cat-chips label[for="cat-download"],
.page-contact #cat-fix:checked ~ .cat-chips label[for="cat-fix"],
.page-contact #cat-coop:checked ~ .cat-chips label[for="cat-coop"] {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
  font-weight: 600;
}

.page-contact .cat-hints {
  margin-top: 2px;
}

.page-contact .cat-hint {
  display: none;
  margin: 0;
  padding: 14px 16px;
  font-size: 14.5px;
  line-height: 1.82;
  color: rgba(232, 245, 240, 0.88);
  background: rgba(18, 59, 48, 0.62);
  border-left: 2px solid var(--cyan);
}

.page-contact #cat-account:checked ~ .cat-hints .cat-hint[data-cat="account"],
.page-contact #cat-sub:checked ~ .cat-hints .cat-hint[data-cat="sub"],
.page-contact #cat-download:checked ~ .cat-hints .cat-hint[data-cat="download"],
.page-contact #cat-fix:checked ~ .cat-hints .cat-hint[data-cat="fix"],
.page-contact #cat-coop:checked ~ .cat-hints .cat-hint[data-cat="coop"] {
  display: block;
}

/* ---------- 信息整理 ---------- */
.page-contact .ct-form {
  display: grid;
  gap: 14px;
  margin-top: 16px;
}

.page-contact .ct-form__row {
  display: grid;
  gap: 14px;
}

@media (min-width: 620px) {
  .page-contact .ct-form__row {
    grid-template-columns: 1fr 1fr;
  }
}

.page-contact .ct-field {
  display: grid;
  gap: 6px;
  min-width: 0;
}

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

.page-contact .ct-field__label span {
  color: var(--amber);
}

.page-contact .ct-field input,
.page-contact .ct-field textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 11px 12px;
  color: var(--paper);
  background: rgba(2, 8, 6, 0.55);
  border: 1px solid var(--line-soft);
  border-radius: 0;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  clip-path: polygon(0 0, calc(100% - var(--ct-cut-sm)) 0, 100% var(--ct-cut-sm), 100% 100%, var(--ct-cut-sm) 100%, 0 calc(100% - var(--ct-cut-sm)));
  transition: border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.page-contact .ct-field textarea {
  min-height: 132px;
  resize: vertical;
}

.page-contact .ct-field input::placeholder,
.page-contact .ct-field textarea::placeholder {
  color: rgba(127, 167, 154, 0.72);
}

.page-contact .ct-field input:focus,
.page-contact .ct-field textarea:focus {
  outline: none;
  border-color: var(--cyan);
  background: rgba(7, 26, 22, 0.92);
  box-shadow: 0 0 0 1px var(--cyan) inset, 0 0 18px rgba(40, 245, 210, 0.16);
}

.page-contact .ct-field input:not(:placeholder-shown):invalid,
.page-contact .ct-field textarea:not(:placeholder-shown):invalid {
  border-color: rgba(255, 181, 71, 0.66);
}

.page-contact .ct-form__note {
  margin: 14px 0 0;
  padding: 12px 14px;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(232, 245, 240, 0.78);
  background: rgba(2, 8, 6, 0.45);
  border-left: 2px solid var(--amber);
  overflow-wrap: anywhere;
}

/* ---------- 联络路径横图 ---------- */
.page-contact .ct-band {
  margin: 34px 0 0;
  position: relative;
  overflow: hidden;
  background: var(--black);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - var(--ct-cut)) 0, 100% var(--ct-cut), 100% 100%, var(--ct-cut) 100%, 0 calc(100% - var(--ct-cut)));
}

.page-contact .ct-band img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-contact .ct-band figcaption {
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(232, 245, 240, 0.82);
  background: linear-gradient(90deg, rgba(2, 8, 6, 0.92), rgba(12, 42, 34, 0.92));
  border-top: 1px solid var(--line);
}

/* ---------- 合作 ---------- */
.page-contact .ct-coop-wrap {
  margin-top: 34px;
}

.page-contact .ct-coop__lead {
  margin: 0;
  max-width: 66ch;
  font-size: 14.5px;
  line-height: 1.82;
  color: rgba(232, 245, 240, 0.76);
}

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

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

.page-contact .ct-coop__item {
  padding: 18px 16px;
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--violet);
  transition: border-color 0.18s ease, background 0.18s ease;
}

.page-contact .ct-coop__item--cyan { border-top-color: var(--cyan); }
.page-contact .ct-coop__item--amber { border-top-color: var(--amber); }

.page-contact .ct-coop__item:hover {
  background: var(--card);
  border-color: var(--line);
}

.page-contact .ct-coop__item h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .ct-coop__item p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: rgba(232, 245, 240, 0.74);
}

/* ---------- 快捷入口 ---------- */
.page-contact .ct-shortcut {
  margin-top: 34px;
}

.page-contact .ct-links {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.page-contact .ct-link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  text-decoration: none;
  background: rgba(12, 42, 34, 0.72);
  border: 1px solid var(--line-soft);
  transition: border-color 0.16s ease, background 0.16s ease, transform 0.16s ease;
}

.page-contact .ct-link:hover,
.page-contact .ct-link:focus-visible {
  border-color: var(--cyan);
  background: rgba(18, 59, 48, 0.92);
  transform: translateX(3px);
}

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

.page-contact .ct-link__body {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.page-contact .ct-link__name {
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
}

.page-contact .ct-link__desc {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
}

.page-contact .ct-link__arrow {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--amber);
  transition: transform 0.16s ease;
}

.page-contact .ct-link:hover .ct-link__arrow {
  transform: translateX(3px);
}

/* ---------- 底部行动 ---------- */
.page-contact .ct-cta {
  margin-top: 34px;
  padding: 22px 18px;
  display: grid;
  gap: 16px;
  align-items: center;
  border: 1px solid var(--line-magenta);
  background: linear-gradient(120deg, rgba(255, 46, 136, 0.12), rgba(7, 26, 22, 0.4) 52%, rgba(40, 245, 210, 0.10));
  clip-path: polygon(0 0, calc(100% - var(--ct-cut)) 0, 100% var(--ct-cut), 100% 100%, var(--ct-cut) 100%, 0 calc(100% - var(--ct-cut)));
}

@media (min-width: 700px) {
  .page-contact .ct-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    padding: 24px 26px;
  }
}

.page-contact .ct-cta__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 4.6vw, 24px);
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .ct-cta__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(232, 245, 240, 0.78);
  max-width: 54ch;
}

.page-contact .ct-cta .btn {
  justify-self: start;
}

@media (min-width: 700px) {
  .page-contact .ct-cta .btn {
    justify-self: end;
  }
}