.page-contact {
  --pc-gap: clamp(1rem, 2.2vw, 1.6rem);
  --pc-panel: linear-gradient(155deg, rgba(19, 84, 71, 0.42), rgba(3, 21, 17, 0.66));
  --pc-border: 1px solid var(--yk-line);
  color: var(--yk-white);
  padding-bottom: clamp(2.5rem, 7vw, 5rem);
  font-family: var(--yk-f-body);
}

.page-contact a {
  color: var(--yk-cyan);
  text-decoration: none;
}

.page-contact a:hover {
  text-decoration: underline;
}

.page-contact .yk-btn:hover {
  text-decoration: none;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  overflow: clip;
  padding: clamp(1rem, 3vw, 2rem) 0 clamp(1.75rem, 4.5vw, 3rem);
}

.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  inset: -32% -16% auto -16%;
  height: 82%;
  background:
    radial-gradient(55% 60% at 16% 30%, rgba(38, 224, 194, 0.2), transparent 72%),
    radial-gradient(45% 55% at 84% 4%, rgba(42, 169, 255, 0.18), transparent 74%);
  pointer-events: none;
  z-index: 0;
}

.page-contact .pc-hero__inner {
  position: relative;
  z-index: 1;
}

.page-contact .pc-eyebrow {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0;
  font-family: var(--yk-f-mono);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  color: var(--yk-mist);
  text-transform: uppercase;
}

.page-contact .pc-hero__title {
  margin: 0.9rem 0 0;
  max-width: 22ch;
  font-family: var(--yk-f-head);
  font-weight: 900;
  font-size: clamp(1.85rem, 5.4vw, 3.4rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.page-contact .pc-accent {
  display: block;
  margin-top: 0.3rem;
  background: linear-gradient(96deg, var(--yk-cyan), var(--yk-lime));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

.page-contact .pc-hero__lead {
  margin: 1.15rem 0 0;
  max-width: 52ch;
  font-size: clamp(0.98rem, 1.6vw, 1.06rem);
  line-height: 1.85;
  color: var(--yk-mist);
}

.page-contact .pc-hero__meta {
  list-style: none;
  margin: clamp(1.4rem, 3vw, 2rem) 0 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.page-contact .pc-hero__meta li {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0.9rem 1rem;
  border: var(--pc-border);
  border-radius: var(--yk-radius-sm);
  background: rgba(3, 21, 17, 0.42);
}

.page-contact .pc-hero__k {
  font-family: var(--yk-f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--yk-cyan);
}

.page-contact .pc-hero__v {
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--yk-white);
}

@media (min-width: 720px) {
  .page-contact .pc-hero__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
  }
}

/* ---------- 通用章节 ---------- */
.page-contact .pc-section {
  padding: clamp(1.75rem, 4.5vw, 3rem) 0;
}

.page-contact .pc-head {
  max-width: 64ch;
  margin-bottom: clamp(1.1rem, 2.8vw, 1.75rem);
}

/* ---------- 01 反馈类型 ---------- */
.page-contact .pc-types__grid {
  display: grid;
  gap: var(--pc-gap);
}

@media (min-width: 900px) {
  .page-contact .pc-types__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 0.9fr);
    align-items: start;
    gap: clamp(1.5rem, 3.5vw, 2.5rem);
  }
}

.page-contact .pc-tabnav {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding: 0.15rem 0.15rem 0.7rem;
  scrollbar-color: var(--yk-line) transparent;
}

.page-contact .pc-tab {
  flex: 0 0 auto;
  appearance: none;
  border: var(--pc-border);
  border-radius: 999px;
  background: rgba(3, 21, 17, 0.5);
  color: var(--yk-mist);
  font-family: var(--yk-f-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  padding: 0.58rem 1.05rem;
  cursor: pointer;
  transition: color 0.2s var(--yk-ease), background 0.2s var(--yk-ease), border-color 0.2s var(--yk-ease);
}

.page-contact .pc-tab:hover {
  color: var(--yk-white);
  border-color: var(--yk-cyan);
}

.page-contact .pc-tab[aria-selected="true"] {
  background: linear-gradient(120deg, var(--yk-cyan), var(--yk-lime));
  border-color: transparent;
  color: var(--yk-hole);
  font-weight: 700;
}

.page-contact .pc-tab:focus-visible {
  outline: 2px solid var(--yk-lime);
  outline-offset: 2px;
}

.page-contact .pc-panel {
  margin-top: 0.6rem;
  padding: clamp(1.1rem, 3.2vw, 1.8rem);
  border: var(--pc-border);
  border-radius: var(--yk-radius);
  background: var(--pc-panel);
}

.page-contact .pc-panel[hidden] {
  display: none;
}

.page-contact .pc-panel h3 {
  margin: 0;
  font-family: var(--yk-f-head);
  font-weight: 800;
  font-size: clamp(1.12rem, 2.4vw, 1.36rem);
  line-height: 1.45;
}

.page-contact .pc-panel p {
  margin: 0.65rem 0 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--yk-mist);
}

.page-contact .pc-mats {
  list-style: none;
  counter-reset: pcmat;
  margin: 1.15rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-contact .pc-mats li {
  counter-increment: pcmat;
  position: relative;
  padding-left: 2.4rem;
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--yk-white);
}

.page-contact .pc-mats li::before {
  content: counter(pcmat, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.1em;
  padding: 0.1rem 0.34rem;
  border: var(--pc-border);
  border-radius: 6px;
  font-family: var(--yk-f-mono);
  font-size: 0.72rem;
  line-height: 1.4;
  color: var(--yk-cyan);
}

.page-contact .pc-panel__send {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.6rem;
  margin-top: 1.2rem;
  padding-top: 0.9rem;
  border-top: 1px dashed rgba(19, 84, 71, 0.9);
  font-size: 0.88rem;
}

.page-contact .pc-panel__send b {
  font-family: var(--yk-f-mono);
  font-weight: 600;
  color: var(--yk-lime);
  overflow-wrap: anywhere;
}

/* ---------- 侧栏：图 + 速览卡 ---------- */
.page-contact .pc-aside {
  display: grid;
  gap: var(--pc-gap);
}

@media (min-width: 900px) {
  .page-contact .pc-aside {
    position: sticky;
    top: calc(var(--yk-header-h) + 1.5rem);
    align-self: start;
  }
}

.page-contact .pc-figure {
  margin: 0;
  overflow: hidden;
  border: var(--pc-border);
  border-radius: var(--yk-radius);
  background: linear-gradient(150deg, rgba(42, 169, 255, 0.18), rgba(3, 21, 17, 0.9));
}

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

.page-contact .pc-figure figcaption {
  padding: 0.75rem 0.9rem;
  border-top: 1px solid rgba(19, 84, 71, 0.8);
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--yk-mist);
}

.page-contact .pc-quickcard {
  padding: clamp(1rem, 2.8vw, 1.4rem);
  border: 1px solid rgba(255, 138, 61, 0.42);
  border-radius: var(--yk-radius);
  background: linear-gradient(155deg, rgba(255, 138, 61, 0.13), rgba(3, 21, 17, 0.72));
}

.page-contact .pc-quickcard__label {
  margin: 0 0 0.5rem;
  font-family: var(--yk-f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--yk-warm);
  text-transform: uppercase;
}

.page-contact .pc-quickcard__rows {
  margin: 0;
  display: grid;
}

.page-contact .pc-row {
  display: grid;
  gap: 0.22rem;
  padding: 0.72rem 0;
  border-top: 1px solid rgba(19, 84, 71, 0.85);
}

.page-contact .pc-quickcard__rows .pc-row:first-child {
  border-top: 0;
}

.page-contact .pc-row__k {
  font-family: var(--yk-f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--yk-cyan);
}

.page-contact .pc-row__v {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--yk-white);
  overflow-wrap: anywhere;
}

.page-contact .pc-row__v--mono {
  font-family: var(--yk-f-mono);
  font-size: 0.88rem;
  color: var(--yk-lime);
}

.page-contact .pc-quickcard__btn {
  margin-top: 1rem;
  width: 100%;
  justify-content: center;
}

/* ---------- 02 必备信息 ---------- */
.page-contact .pc-needs__grid {
  display: grid;
  gap: 0.9rem;
}

@media (min-width: 820px) {
  .page-contact .pc-needs__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
  }
}

.page-contact .pc-need {
  position: relative;
  padding: 1.15rem 1.1rem 1.2rem;
  border: var(--pc-border);
  border-radius: var(--yk-radius);
  background: rgba(3, 21, 17, 0.46);
  overflow: hidden;
}

.page-contact .pc-need::after {
  content: "";
  position: absolute;
  right: -30px;
  top: -30px;
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(38, 224, 194, 0.22), transparent 70%);
  pointer-events: none;
}

.page-contact .pc-need__num {
  display: block;
  font-family: var(--yk-f-score);
  font-size: 2.35rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  color: rgba(201, 255, 63, 0.85);
}

.page-contact .pc-need h3 {
  margin: 0.5rem 0 0;
  font-family: var(--yk-f-head);
  font-weight: 800;
  font-size: 1.06rem;
  line-height: 1.5;
}

.page-contact .pc-need p {
  margin: 0.5rem 0 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--yk-mist);
}

.page-contact .yk-note {
  margin-top: 1.2rem;
}

/* ---------- 03 联系渠道 ---------- */
.page-contact .pc-channels {
  display: grid;
  gap: var(--pc-gap);
}

@media (min-width: 940px) {
  .page-contact .pc-channels {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: stretch;
    gap: clamp(1.5rem, 3.5vw, 2.5rem);
  }
}

.page-contact .pc-channel-list {
  display: grid;
  gap: 0.85rem;
  align-content: start;
}

@media (min-width: 600px) {
  .page-contact .pc-channel-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-contact .pc-channel {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1rem 1.1rem 1.1rem;
  border: var(--pc-border);
  border-radius: var(--yk-radius);
  background: var(--pc-panel);
}

.page-contact .pc-channel--warm {
  border-color: rgba(255, 138, 61, 0.55);
  background: linear-gradient(155deg, rgba(255, 138, 61, 0.15), rgba(3, 21, 17, 0.7));
}

.page-contact .pc-channel__k {
  font-family: var(--yk-f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--yk-cyan);
}

.page-contact .pc-channel__v {
  margin: 0;
  font-size: 1rem;
  line-height: 1.55;
  color: var(--yk-white);
  overflow-wrap: anywhere;
}

.page-contact .pc-channel__v--mono {
  font-family: var(--yk-f-mono);
  font-size: 0.94rem;
  color: var(--yk-lime);
}

.page-contact .pc-channel__d {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.7;
  color: var(--yk-mist);
}

.page-contact .pc-channels__figure {
  display: flex;
  flex-direction: column;
}

.page-contact .pc-channels__figure img {
  flex: 1 1 auto;
  min-height: 200px;
  height: 100%;
  object-fit: cover;
}

/* ---------- 04 / 05 服务与站点信息 ---------- */
.page-contact .pc-info__grid {
  display: grid;
  gap: var(--pc-gap);
}

@media (min-width: 880px) {
  .page-contact .pc-info__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(1.5rem, 3vw, 2.25rem);
  }
}

.page-contact .pc-info__block {
  padding: clamp(1.1rem, 3vw, 1.6rem);
  border: var(--pc-border);
  border-radius: var(--yk-radius);
  background: var(--pc-panel);
}

.page-contact .pc-info__block--quiet {
  background: rgba(3, 21, 17, 0.5);
}

.page-contact .pc-info__title {
  margin: 0.55rem 0 0;
}

.page-contact .pc-rows {
  margin-top: 1rem;
  display: grid;
}

.page-contact .pc-rows .pc-row {
  padding: 0.9rem 0;
}

.page-contact .pc-rows .pc-row:first-child {
  border-top: 0;
  padding-top: 0.2rem;
}

.page-contact .pc-rows .pc-row__v a {
  color: var(--yk-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 06 检查清单 ---------- */
.page-contact .pc-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

@media (min-width: 760px) {
  .page-contact .pc-checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
  }
}

.page-contact .pc-check {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  height: 100%;
  padding: 0.85rem 1rem;
  border: var(--pc-border);
  border-radius: var(--yk-radius-sm);
  background: rgba(3, 21, 17, 0.5);
  font-size: 0.93rem;
  line-height: 1.65;
  cursor: pointer;
  transition: border-color 0.2s var(--yk-ease), background 0.2s var(--yk-ease);
}

.page-contact .pc-check:hover {
  border-color: var(--yk-cyan);
}

.page-contact .pc-check input {
  appearance: none;
  -webkit-appearance: none;
  flex: 0 0 auto;
  width: 1.2rem;
  height: 1.2rem;
  margin: 0.15rem 0 0;
  border: var(--pc-border);
  border-radius: 6px;
  background: rgba(6, 42, 36, 0.95);
  cursor: pointer;
  transition: background 0.2s var(--yk-ease), border-color 0.2s var(--yk-ease);
}

.page-contact .pc-check input:checked {
  background: var(--yk-lime);
  border-color: var(--yk-lime);
  box-shadow: inset 0 0 0 3px var(--yk-hole);
}

.page-contact .pc-check input:focus-visible {
  outline: 2px solid var(--yk-cyan);
  outline-offset: 2px;
}

.page-contact .pc-check__text {
  color: var(--yk-white);
}

.page-contact .pc-check input:checked + .pc-check__text {
  color: var(--yk-mist);
}

.page-contact .pc-closing {
  margin-top: clamp(1.25rem, 3vw, 1.9rem);
  padding: clamp(1.1rem, 3vw, 1.5rem);
  border: 1px dashed rgba(38, 224, 194, 0.45);
  border-radius: var(--yk-radius);
  display: grid;
  gap: 1rem;
  background: rgba(6, 42, 36, 0.55);
}

@media (min-width: 780px) {
  .page-contact .pc-closing {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

.page-contact .pc-closing__text {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.7;
  color: var(--yk-white);
}

.page-contact .pc-closing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-tab,
  .page-contact .pc-check,
  .page-contact .pc-check input {
    transition: none;
  }
}
<<<END>>>