.page-contact {
  --co-block: clamp(56px, 8vw, 104px);
  --co-gap: clamp(20px, 3vw, 36px);
  position: relative;
  padding-top: calc(var(--topbar-h) + clamp(14px, 2.4vw, 28px));
  padding-bottom: 0;
  color: var(--ink);
  font-family: var(--font-sans);
  background-color: var(--offside-white);
  background-image:
    linear-gradient(to right, rgba(20, 104, 60, .05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(20, 104, 60, .05) 1px, transparent 1px);
  background-size: 120px 120px;
  overflow-x: clip;
}

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

.page-contact .content-wrap {
  width: 100%;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  margin-bottom: clamp(18px, 3vw, 30px);
  font-size: 13px;
}

.page-contact .co-crumb-sep {
  margin: 0 8px;
  color: var(--line-grey);
}

/* ---------- 章节头 ---------- */
.page-contact .section-head {
  margin: 0 0 clamp(26px, 3.6vw, 42px);
}

/* ---------- 首屏 ---------- */
.page-contact .co-hero {
  padding-bottom: var(--co-block);
}

.page-contact .co-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

.page-contact .co-hero__title {
  margin: 14px 0 0;
  font-size: clamp(30px, 5.4vw, 58px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-contact .co-hero__intro {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 34em;
  font-size: clamp(15.5px, 1.15vw, 17.5px);
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-contact .co-hero__quick {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .co-hero__quick li {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  background: var(--whistle-soft);
  border: 1px solid rgba(20, 104, 60, .16);
  font-size: 13.5px;
  color: var(--ink-soft);
}

.page-contact .co-hero__quick .mono {
  font-size: 15px;
  font-weight: 700;
  color: var(--turf-deep);
}

/* ---------- 联系信息卡 ---------- */
.page-contact .co-contact-card {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 3vw, 34px);
  border-radius: var(--radius-card);
  background: var(--turf-deep);
  color: var(--offside-white);
  border: 2px solid var(--whistle);
  box-shadow: var(--shadow-card);
}

.page-contact .co-contact-card::after {
  content: "";
  position: absolute;
  right: -50px;
  bottom: -70px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 210, 74, .22), transparent 70%);
  pointer-events: none;
}

.page-contact .co-contact-card__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--whistle);
}

.page-contact .co-contact-card__lead {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(251, 250, 245, .82);
}

.page-contact .co-contact-card__list {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding: 0;
}

.page-contact .co-contact-card__row {
  display: grid;
  gap: 3px;
  padding: 11px 0;
  border-bottom: 1px dashed rgba(251, 250, 245, .26);
}

.page-contact .co-contact-card__row:last-child {
  border-bottom: 0;
}

.page-contact .co-contact-card__row dt {
  font-size: 11.5px;
  letter-spacing: .12em;
  color: rgba(255, 210, 74, .9);
}

.page-contact .co-contact-card__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  word-break: break-word;
}

.page-contact .co-contact-card__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(251, 250, 245, .7);
}

.page-contact .co-contact-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.page-contact .co-copy {
  display: inline-flex;
  align-items: center;
  padding: 9px 18px;
  border-radius: var(--radius-pill);
  border: 1.5px solid rgba(255, 210, 74, .5);
  color: var(--whistle);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-contact .co-copy:hover {
  background: var(--whistle);
  border-color: var(--whistle);
  color: var(--board-navy);
}

/* ---------- 合作方式：胶囊切换 ---------- */
.page-contact .co-modes {
  padding-bottom: var(--co-block);
}

.page-contact .co-tabs {
  position: relative;
  margin-top: clamp(18px, 2.6vw, 30px);
}

.page-contact .co-tabs__input {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  opacity: 0;
  overflow: hidden;
  white-space: nowrap;
}

.page-contact .co-tabs__labels {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: clamp(22px, 3vw, 32px);
}

.page-contact .co-tab {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 20px;
  border-radius: var(--radius-pill);
  background: #fff;
  border: 1.5px solid var(--line-grey);
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink-soft);
  cursor: pointer;
  user-select: none;
  transition: background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-contact .co-tab:hover {
  border-color: var(--turf-bright);
  color: var(--ink);
}

.page-contact .co-tab__idx {
  font-size: 12px;
  color: var(--turf-bright);
}

.page-contact #co-mode-1:checked ~ .co-tabs__labels .co-tab[for="co-mode-1"],
.page-contact #co-mode-2:checked ~ .co-tabs__labels .co-tab[for="co-mode-2"],
.page-contact #co-mode-3:checked ~ .co-tabs__labels .co-tab[for="co-mode-3"],
.page-contact #co-mode-4:checked ~ .co-tabs__labels .co-tab[for="co-mode-4"] {
  background: var(--board-navy);
  border-color: var(--board-navy);
  color: var(--offside-white);
  font-weight: 700;
}

.page-contact #co-mode-1:checked ~ .co-tabs__labels .co-tab[for="co-mode-1"] .co-tab__idx,
.page-contact #co-mode-2:checked ~ .co-tabs__labels .co-tab[for="co-mode-2"] .co-tab__idx,
.page-contact #co-mode-3:checked ~ .co-tabs__labels .co-tab[for="co-mode-3"] .co-tab__idx,
.page-contact #co-mode-4:checked ~ .co-tabs__labels .co-tab[for="co-mode-4"] .co-tab__idx {
  color: var(--whistle);
}

.page-contact .co-panel {
  display: none;
}

.page-contact #co-mode-1:checked ~ .co-tabs__panels .co-panel--1 { display: grid; }
.page-contact #co-mode-2:checked ~ .co-tabs__panels .co-panel--2 { display: grid; }
.page-contact #co-mode-3:checked ~ .co-tabs__panels .co-panel--3 { display: grid; }
.page-contact #co-mode-4:checked ~ .co-tabs__panels .co-panel--4 { display: grid; }

.page-contact .co-panel {
  gap: clamp(22px, 3vw, 44px);
  padding: clamp(24px, 3.2vw, 40px);
  border-radius: var(--radius-card);
  background: #fff;
  border: 1.5px solid var(--line-grey);
}

.page-contact .co-panel__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--turf-bright);
}

.page-contact .co-panel__title {
  margin: 10px 0 0;
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight: 700;
  line-height: 1.42;
  color: var(--ink);
}

.page-contact .co-panel__text {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-contact .co-panel__text a {
  color: var(--turf-deep);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .co-panel__text a:hover {
  background: var(--whistle);
  color: var(--board-navy);
  text-decoration: none;
}

.page-contact .co-panel__facts {
  margin: 0;
  display: grid;
  gap: 2px;
  align-content: start;
}

.page-contact .co-panel__fact {
  padding: 12px 0;
  border-bottom: 1px dashed var(--line-grey);
}

.page-contact .co-panel__fact:last-child {
  border-bottom: 0;
}

.page-contact .co-panel__fact dt {
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--ink-mute);
}

.page-contact .co-panel__fact dd {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
}

/* ---------- 四步流程：横向刻度 ---------- */
.page-contact .co-steps {
  position: relative;
  background: var(--board-navy);
  color: var(--offside-white);
  padding-block: var(--co-block);
}

.page-contact .co-steps .section-head__num { color: var(--whistle); }
.page-contact .co-steps .section-head__title { color: var(--offside-white); }
.page-contact .co-steps .section-head__note { color: rgba(251, 250, 245, .55); }

.page-contact .co-track {
  position: relative;
  list-style: none;
  margin: clamp(34px, 5vw, 60px) 0 0;
  padding: 0;
  display: grid;
  gap: 26px;
}

.page-contact .co-track__item {
  position: relative;
}

.page-contact .co-track__num {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  border: 2px solid var(--whistle);
  background: var(--board-navy);
  color: var(--whistle);
  font-size: 16px;
  font-weight: 700;
  transition: background var(--t-base) var(--ease), color var(--t-base) var(--ease);
}

.page-contact .co-track__item:hover .co-track__num {
  background: var(--whistle);
  color: var(--board-navy);
}

.page-contact .co-track__title {
  margin: 16px 0 0;
  font-size: 18px;
  font-weight: 700;
}

.page-contact .co-track__text {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(251, 250, 245, .72);
}

.page-contact .co-track__time {
  display: inline-block;
  margin-top: 14px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: rgba(255, 210, 74, .14);
  border: 1px solid rgba(255, 210, 74, .4);
  color: var(--whistle);
  font-size: 12px;
}

/* ---------- 材料清单 ---------- */
.page-contact .co-materials {
  padding-block: var(--co-block);
}

.page-contact .co-materials__grid {
  display: grid;
  gap: clamp(24px, 3.4vw, 44px);
}

.page-contact .co-materials__h {
  margin: 0 0 18px;
  padding-left: 14px;
  border-left: 4px solid var(--whistle);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
}

.page-contact .co-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .co-check {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  background: #fff;
  border: 1px solid var(--line-grey);
  cursor: pointer;
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

.page-contact .co-check:hover {
  border-color: var(--turf-bright);
}

.page-contact .co-check input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  opacity: 0;
  overflow: hidden;
}

.page-contact .co-check__box {
  position: relative;
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border: 2px solid var(--line-grey);
  border-radius: 6px;
  transition: background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-contact .co-check input:checked + .co-check__box {
  background: var(--whistle);
  border-color: var(--turf-deep);
}

.page-contact .co-check input:checked + .co-check__box::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border-right: 2.5px solid var(--board-navy);
  border-bottom: 2.5px solid var(--board-navy);
  transform: rotate(45deg);
}

.page-contact .co-check input:focus-visible + .co-check__box {
  outline: 2px solid var(--board-navy);
  outline-offset: 3px;
}

.page-contact .co-check__text {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--ink-soft);
  transition: color var(--t-fast) var(--ease);
}

.page-contact .co-check input:checked ~ .co-check__text {
  color: var(--ink-mute);
}

/* ---------- 交付物 ---------- */
.page-contact .co-deliver {
  padding-bottom: var(--co-block);
}

.page-contact .co-deliver__figure {
  margin: 0 0 clamp(24px, 3.4vw, 40px);
}

.page-contact .co-deliver__grid {
  display: grid;
  gap: 18px;
}

.page-contact .co-deliver__card {
  position: relative;
  overflow: hidden;
  padding: clamp(48px, 5vw, 58px) clamp(22px, 2.6vw, 30px) clamp(24px, 3vw, 30px);
  border-radius: var(--radius-card);
  background: #fff;
  border: 1.5px solid var(--line-grey);
  transition: transform var(--t-base) var(--ease), border-color var(--t-base) var(--ease);
}

.page-contact .co-deliver__card:hover {
  transform: translateY(-2px);
  border-color: var(--turf-bright);
}

.page-contact .co-deliver__card--whistle {
  background: var(--whistle-soft);
  border-color: rgba(20, 104, 60, .14);
}

.page-contact .co-deliver__card--navy {
  background: var(--board-navy);
  border-color: var(--board-navy);
  color: var(--offside-white);
}

.page-contact .co-deliver__card--line {
  border: 2px solid var(--turf-bright);
}

.page-contact .co-deliver__tag {
  position: absolute;
  top: 0;
  right: 0;
  padding: 8px 16px 8px 22px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  background: var(--turf-deep);
  color: var(--offside-white);
  clip-path: polygon(14px 0, 100% 0, 100% 100%, 0 100%);
}

.page-contact .co-deliver__card--navy .co-deliver__tag {
  background: var(--whistle);
  color: var(--board-navy);
}

.page-contact .co-deliver__title {
  margin: 0;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.42;
  color: var(--ink);
}

.page-contact .co-deliver__card--navy .co-deliver__title {
  color: var(--offside-white);
}

.page-contact .co-deliver__text {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-contact .co-deliver__card--navy .co-deliver__text {
  color: rgba(251, 250, 245, .76);
}

/* ---------- 联系渠道 ---------- */
.page-contact .co-reach {
  background: var(--turf-deep);
  color: var(--offside-white);
  padding-block: var(--co-block);
}

.page-contact .co-reach__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  align-items: center;
}

.page-contact .co-reach .section-head__num { color: var(--whistle); }
.page-contact .co-reach .section-head__title { color: var(--offside-white); }
.page-contact .co-reach .section-head__note { color: rgba(251, 250, 245, .55); }

.page-contact .co-reach__lead {
  margin: 0 0 clamp(20px, 3vw, 28px);
  max-width: 34em;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(251, 250, 245, .82);
}

.page-contact .co-reach__lead a,
.page-contact .co-reach__note a {
  color: var(--whistle);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .co-reach__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-contact .co-reach__item {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px dashed rgba(251, 250, 245, .24);
}

.page-contact .co-reach__item:last-child {
  border-bottom: 0;
}

.page-contact .co-reach__key {
  font-size: 11.5px;
  letter-spacing: .12em;
  color: rgba(255, 210, 74, .9);
}

.page-contact .co-reach__val {
  font-size: 15.5px;
  line-height: 1.6;
  word-break: break-word;
}

.page-contact .co-reach__note {
  margin: clamp(18px, 2.6vw, 24px) 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(251, 250, 245, .7);
}

.page-contact .co-reach__figure {
  margin: 0;
}

.page-contact .co-reach__figure figcaption {
  color: rgba(251, 250, 245, .72);
}

/* ---------- 常见追问 ---------- */
.page-contact .co-qa {
  padding-top: var(--co-block);
}

.page-contact .co-qa__list {
  display: grid;
  gap: 12px;
}

.page-contact .co-qa__item {
  padding: 2px clamp(18px, 2.4vw, 26px);
  border-radius: var(--radius-md);
  background: #fff;
  border: 1.5px solid var(--line-grey);
  transition: border-color var(--t-base) var(--ease);
}

.page-contact .co-qa__item:hover,
.page-contact .co-qa__item[open] {
  border-color: var(--turf-bright);
}

.page-contact .co-qa__q {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  list-style: none;
  cursor: pointer;
  font-size: clamp(16px, 1.6vw, 17.5px);
  font-weight: 700;
  color: var(--ink);
}

.page-contact .co-qa__q::-webkit-details-marker {
  display: none;
}

.page-contact .co-qa__q::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  color: var(--turf-deep);
  transition: color var(--t-base) var(--ease);
}

.page-contact .co-qa__item[open] .co-qa__q::after {
  content: "–";
  color: var(--penalty-red);
}

.page-contact .co-qa__a {
  margin: 0;
  padding: 0 0 20px;
  max-width: 46em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-contact .co-qa__a a {
  color: var(--turf-deep);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 断点 ---------- */
@media (min-width: 860px) {
  .page-contact .co-deliver__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-contact .co-materials__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 800px) {
  .page-contact .co-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
  }

  .page-contact .co-track::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 26px;
    height: 2px;
    background: repeating-linear-gradient(to right, rgba(255, 210, 74, .5) 0 12px, transparent 12px 24px);
  }
}

@media (min-width: 880px) {
  .page-contact .co-panel {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-contact .co-reach__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }
}

@media (min-width: 960px) {
  .page-contact .co-hero__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  }
}

@media (max-width: 560px) {
  .page-contact .co-hero__quick li {
    width: 100%;
    justify-content: flex-start;
  }

  .page-contact .co-tab {
    width: 100%;
    justify-content: flex-start;
  }

  .page-contact .co-contact-card__actions .co-copy {
    flex: 1 1 auto;
    justify-content: center;
  }
}
<<<END>>>