.page-contact {
  background:
    radial-gradient(760px 440px at 92% -10%, rgba(255, 90, 31, 0.16), transparent 66%),
    radial-gradient(560px 380px at -4% 10%, rgba(45, 140, 255, 0.12), transparent 62%),
    var(--ink-900);
  color: var(--fog);
  padding-block: var(--gap-5) var(--gap-6);
  overflow-x: clip;
}

.page-contact img {
  max-width: 100%;
}

.page-contact .section-title {
  margin: var(--gap-2) 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--white);
}

/* 开场 */
.page-contact .contact-intro {
  display: grid;
  gap: var(--gap-4);
  margin-top: var(--gap-4);
  padding-bottom: var(--gap-5);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-intro h1 {
  margin: var(--gap-3) 0 0;
  font-family: var(--font-display);
  font-size: clamp(34px, 6.2vw, 62px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--white);
  max-width: 15ch;
}

.page-contact .contact-intro__text {
  margin-top: var(--gap-3);
  max-width: 58ch;
  font-size: 17px;
  line-height: 1.7;
  color: var(--warm);
}

.page-contact .contact-aside {
  position: relative;
  padding: var(--gap-3);
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
}

.page-contact .contact-aside__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-contact .contact-aside__title {
  margin: var(--gap-2) 0 0;
  font-size: 22px;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.01em;
}

.page-contact .contact-aside__text {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--warm);
}

.page-contact .contact-aside__mail {
  display: inline-block;
  margin-top: var(--gap-3);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--blue);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-mid) var(--ease), color var(--dur-mid) var(--ease);
}

.page-contact .contact-aside__mail:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* 联系信息与右栏 */
.page-contact .contact-main {
  margin-top: var(--gap-5);
}

.page-contact .contact-main__grid {
  display: grid;
  gap: var(--gap-3);
  align-items: start;
}

.page-contact .contact-card {
  display: flex;
  flex-direction: column;
  background: var(--ink-800);
  border: 1px solid var(--line);
  transition: border-color var(--dur-mid) var(--ease);
}

.page-contact .contact-card:hover {
  border-color: rgba(255, 90, 31, 0.5);
}

.page-contact .contact-card__media {
  position: relative;
  overflow: hidden;
  background: var(--ink-700);
}

.page-contact .contact-card__img {
  display: block;
  width: 100%;
  height: clamp(170px, 26vw, 248px);
  object-fit: cover;
  object-position: center;
  opacity: 0.72;
  filter: saturate(0.9) contrast(1.05);
}

.page-contact .contact-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 13, 16, 0.12) 0%, rgba(21, 26, 32, 0.94) 100%);
  pointer-events: none;
}

.page-contact .contact-card__body {
  padding: var(--gap-3);
}

.page-contact .contact-card__title {
  margin: var(--gap-2) 0 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--white);
}

.page-contact .channel-list {
  margin: var(--gap-3) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
}

.page-contact .channel {
  display: grid;
  gap: 5px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.page-contact .channel:first-child {
  border-top: 0;
  padding-top: 4px;
}

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

.page-contact .channel__value {
  font-family: var(--font-mono);
  font-size: clamp(16px, 2.4vw, 21px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--white);
  text-decoration: none;
  word-break: break-word;
  transition: color var(--dur-mid) var(--ease);
}

.page-contact a.channel__value:hover {
  color: var(--orange);
}

.page-contact .channel__value--plain {
  font-family: var(--font-body);
  font-size: clamp(16px, 2.2vw, 19px);
  font-weight: 600;
}

.page-contact .channel__hint {
  font-size: 13px;
  line-height: 1.6;
  color: var(--warm);
}

.page-contact .contact-rail {
  display: grid;
  gap: var(--gap-3);
}

.page-contact .rail-card {
  padding: var(--gap-3);
  background: var(--ink-800);
  border: 1px solid var(--line);
}

.page-contact .rail-card--time {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink-900);
}

.page-contact .rail-card__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--warm);
}

.page-contact .rail-card--time .rail-card__label {
  color: rgba(11, 13, 16, 0.7);
}

.page-contact .rail-card__num {
  display: block;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: clamp(30px, 5vw, 40px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.page-contact .rail-card__note {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  font-weight: 600;
  color: rgba(11, 13, 16, 0.78);
}

.page-contact .rail-card__title {
  margin: 0;
  font-size: 17px;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.01em;
}

.page-contact .rail-links {
  margin: var(--gap-2) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .rail-links li + li {
  border-top: 1px solid var(--line);
}

.page-contact .rail-links__item {
  display: block;
  padding: 10px 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--fog);
  text-decoration: none;
  transition: color var(--dur-mid) var(--ease);
}

.page-contact .rail-links__item:hover {
  color: var(--orange);
}

.page-contact .rail-card--tip {
  border-color: rgba(182, 255, 59, 0.35);
}

.page-contact .rail-card__tip {
  margin: var(--gap-2) 0 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--warm);
}

/* 反馈流程 */
.page-contact .contact-flow {
  margin-top: var(--gap-6);
}

.page-contact .flow-steps {
  margin: var(--gap-4) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--gap-3);
}

.page-contact .flow-step {
  padding-top: var(--gap-2);
  border-top: 2px solid var(--orange);
}

.page-contact .flow-step--last {
  border-top-color: var(--blue);
}

.page-contact .flow-step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--orange);
}

.page-contact .flow-step--last .flow-step__num {
  color: var(--blue);
}

.page-contact .flow-step__title {
  margin: 8px 0 0;
  font-size: 18px;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.01em;
}

.page-contact .flow-step__text {
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--warm);
}

.page-contact .contact-checklist {
  margin-top: var(--gap-4);
  padding: var(--gap-3);
  background: var(--ink-800);
  border: 1px solid var(--line);
}

.page-contact .contact-checklist__title {
  margin: 0;
  font-size: 17px;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.01em;
}

.page-contact .check-list {
  margin: var(--gap-2) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .check {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  cursor: pointer;
}

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

.page-contact .check__box {
  flex: 0 0 auto;
  position: relative;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  background: var(--ink-900);
  border: 1px solid var(--line);
  transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}

.page-contact .check:hover .check__box {
  border-color: var(--orange);
}

.page-contact .check__input:checked + .check__box {
  background: var(--lime);
  border-color: var(--lime);
}

.page-contact .check__input:checked + .check__box::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border: 2px solid var(--ink-900);
  border-top: 0;
  border-left: 0;
  transform: rotate(45deg);
}

.page-contact .check__input:focus-visible + .check__box {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.page-contact .check__text {
  font-size: 14px;
  line-height: 1.55;
  color: var(--fog);
}

/* 订阅与合作 */
.page-contact .contact-coop {
  margin-top: var(--gap-6);
  display: grid;
  gap: var(--gap-3);
}

.page-contact .contact-coop__media {
  position: relative;
  overflow: hidden;
  min-height: 240px;
  background: var(--ink-700);
  border: 1px solid var(--line);
}

.page-contact .contact-coop__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.82;
  filter: saturate(0.92) contrast(1.04);
}

.page-contact .coop-grid {
  margin-top: var(--gap-4);
  display: grid;
  gap: var(--gap-3);
}

.page-contact .coop-card {
  padding: var(--gap-3);
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-top: 3px solid var(--blue);
}

.page-contact .coop-card--org {
  border-top-color: var(--orange);
}

.page-contact .coop-card h3 {
  margin: var(--gap-2) 0 0;
  font-size: 20px;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.01em;
}

.page-contact .coop-card p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--warm);
}

.page-contact .coop-card ul {
  margin: var(--gap-2) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
}

.page-contact .coop-card li {
  position: relative;
  padding-left: 14px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--fog);
}

.page-contact .coop-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 6px;
  height: 6px;
  background: var(--orange);
}

.page-contact .coop-card--org li::before {
  background: var(--orange);
}

.page-contact .coop-card:not(.coop-card--org) li::before {
  background: var(--blue);
}

/* 服务说明与快捷入口 */
.page-contact .contact-close {
  margin-top: var(--gap-6);
  display: grid;
  gap: var(--gap-4);
}

.page-contact .scope-list {
  margin: var(--gap-3) 0 0;
  display: grid;
}

.page-contact .scope-item {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.page-contact .scope-item:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .scope-item dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-contact .scope-item dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--warm);
}

.page-contact .contact-links {
  padding: var(--gap-3);
  background: var(--ink-800);
  border: 1px solid var(--line);
}

.page-contact .contact-links__title {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.01em;
}

.page-contact .link-list {
  margin: var(--gap-2) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .link-list li + li {
  border-top: 1px solid var(--line);
}

.page-contact .link-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--fog);
  text-decoration: none;
  transition: color var(--dur-mid) var(--ease);
}

.page-contact .link-list a::after {
  content: "→";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  color: var(--orange);
}

.page-contact .link-list a:hover {
  color: var(--orange);
}

.page-contact .action-strip {
  margin-top: var(--gap-6);
}

/* 响应式 */
@media (min-width: 720px) {
  .page-contact .flow-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--gap-4);
  }

  .page-contact .coop-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-contact .contact-intro {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: var(--gap-5);
    align-items: end;
  }

  .page-contact .contact-main__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }

  .page-contact .contact-flow__body {
    display: grid;
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: var(--gap-4);
    align-items: start;
  }

  .page-contact .contact-checklist {
    margin-top: var(--gap-4);
  }

  .page-contact .contact-coop {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--gap-4);
    align-items: stretch;
  }

  .page-contact .contact-close {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: var(--gap-5);
  }
}

@media (min-width: 1080px) {
  .page-contact .flow-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
<<<END>>>