.page-contact {
  --contact-border: rgba(154, 175, 166, 0.18);
  --contact-gap: 16px;
  padding-bottom: 64px;
}

.page-contact .crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 18px;
  font-size: 13px;
  color: var(--muted);
}

.page-contact .crumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-contact .crumb a:hover {
  color: var(--orange);
  border-bottom-color: var(--line-warm);
}

.page-contact .crumb span[aria-hidden="true"] {
  color: rgba(154, 175, 166, 0.5);
}

.page-contact .crumb span[aria-current="page"] {
  color: var(--paper);
}

/* 首屏 */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: 26px 0 34px;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  left: -10%;
  right: -10%;
  top: -20%;
  height: 130%;
  background-image: var(--tiger);
  opacity: 0.6;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), transparent 76%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), transparent 76%);
}

.page-contact .contact-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-contact .contact-hero h1 {
  margin: 10px 0 14px;
  max-width: 14em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 7vw, 50px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .contact-hero__lead {
  margin: 0 0 20px;
  max-width: 31em;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(244, 241, 232, 0.82);
}

.page-contact .contact-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-hero__jump .btn {
  font-size: 14px;
}

.page-contact .contact-hero__media {
  align-self: start;
}

/* 章节标题 */
.page-contact .contact-head {
  max-width: 46em;
  margin-bottom: 24px;
}

.page-contact .contact-head h2,
.page-contact .contact-desk__panel h2 {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 4.4vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .contact-head__sub {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

/* 三条通道 */
.page-contact .contact-channels {
  padding: 40px 0 8px;
}

.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px 18px;
  background: linear-gradient(155deg, rgba(18, 41, 31, 0.98), rgba(11, 26, 21, 0.98));
  border: 1px solid rgba(124, 77, 255, 0.38);
  clip-path: var(--clip-cut);
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

.page-contact .channel-card::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: var(--grad-cool);
  opacity: 0.9;
  transition: background 0.25s ease, opacity 0.25s ease;
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  border-color: rgba(255, 122, 24, 0.72);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.42);
  transform: translateY(-2px);
}

.page-contact .channel-card:hover::after,
.page-contact .channel-card:focus-within::after {
  background: var(--grad-warm);
  opacity: 1;
}

.page-contact .channel-card__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 13px;
  color: var(--ink);
  background: var(--grad-warm);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
}

.page-contact .channel-card h3 {
  margin: 2px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 19px;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .channel-card__use {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .channel-card__val {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 15px;
  line-height: 1.55;
  letter-spacing: 0.02em;
  word-break: break-all;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px dashed rgba(53, 240, 206, 0.35);
  padding-bottom: 2px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-contact .channel-card__val:hover {
  color: var(--orange-soft);
  border-bottom-color: var(--line-warm);
}

.page-contact .channel-card__val--plain {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0;
  color: rgba(244, 241, 232, 0.9);
  border-bottom: none;
  padding-bottom: 0;
}

.page-contact .channel-card__meta {
  margin: 0;
  padding-left: 10px;
  border-left: 3px solid rgba(255, 122, 24, 0.5);
  font-size: 13px;
  line-height: 1.65;
  color: rgba(154, 175, 166, 0.9);
}

.page-contact .channel-card__more {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid rgba(154, 175, 166, 0.16);
}

.page-contact .channel-card__more summary {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--purple);
  transition: color 0.2s ease;
}

.page-contact .channel-card__more summary::-webkit-details-marker {
  display: none;
}

.page-contact .channel-card__more summary::before {
  content: "＋";
  font-size: 14px;
  color: var(--orange);
}

.page-contact .channel-card__more[open] summary::before {
  content: "－";
}

.page-contact .channel-card__more summary:hover {
  color: var(--orange-soft);
}

.page-contact .channel-card__more p {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(244, 241, 232, 0.76);
}

.page-contact .channel-card__more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 206, 0.35);
}

.page-contact .channel-card__more a:hover {
  color: var(--orange-soft);
  border-bottom-color: var(--line-warm);
}

.page-contact .contact-channels__diagram {
  max-width: 420px;
  margin: 28px auto 0;
}

/* 材料清单 */
.page-contact .contact-prep {
  padding: 40px 0;
}

.page-contact .contact-prep__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-contact .contact-prep__intro h2 {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 4.4vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .contact-prep__sub {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .contact-prep__note {
  margin: 0;
  padding: 12px 14px;
  border-left: 3px solid var(--orange);
  background: rgba(255, 122, 24, 0.07);
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(244, 241, 232, 0.86);
}

.page-contact .checklist {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .checklist__label {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 14px;
  background: rgba(18, 41, 31, 0.72);
  border: 1px solid var(--contact-border);
  clip-path: var(--clip-cut);
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.page-contact .checklist__label:hover {
  border-color: rgba(53, 240, 206, 0.45);
  background: rgba(22, 50, 38, 0.82);
}

.page-contact .checklist__box {
  position: absolute;
  left: 16px;
  top: 18px;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .checklist__mark {
  position: relative;
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  margin-top: 2px;
  background: rgba(11, 26, 21, 0.9);
  border: 1px solid rgba(53, 240, 206, 0.42);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
  transition: background 0.18s ease, border-color 0.18s ease;
}

.page-contact .checklist__box:focus-visible ~ .checklist__mark {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .checklist__box:checked ~ .checklist__mark {
  background: var(--grad-warm);
  border-color: transparent;
}

.page-contact .checklist__box:checked ~ .checklist__mark::after {
  content: "";
  position: absolute;
  left: 8px;
  top: 4px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(40deg);
}

.page-contact .checklist__box:checked ~ .checklist__body {
  opacity: 0.7;
}

.page-contact .checklist__body {
  display: grid;
  gap: 3px;
  transition: opacity 0.18s ease;
}

.page-contact .checklist__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-contact .checklist__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 16px;
  color: var(--paper);
}

.page-contact .checklist__desc {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* 服务中心 */
.page-contact .contact-desk {
  padding: 40px 0;
}

.page-contact .contact-desk__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .contact-desk__panel {
  padding: 26px 20px;
}

.page-contact .desk-list {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-contact .desk-list__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 0;
  border-top: 1px solid var(--contact-border);
}

.page-contact .desk-list dt {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-contact .desk-list dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
}

.page-contact .desk-list dd.num {
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
  color: var(--cyan);
}

.page-contact .contact-desk__tip {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(154, 175, 166, 0.95);
}

.page-contact .contact-desk__side {
  padding: 22px 20px;
  background: rgba(18, 41, 31, 0.6);
  border-left: 3px solid var(--purple);
}

.page-contact .contact-desk__side h3 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17px;
  color: var(--paper);
}

.page-contact .contact-desk__side ol {
  margin: 0;
  padding-left: 1.2em;
  display: grid;
  gap: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .contact-desk__side li::marker {
  font-family: var(--font-mono);
  color: var(--purple);
}

/* 合作洽谈 */
.page-contact .contact-biz {
  padding: 40px 0;
}

.page-contact .biz-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .biz-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 18px;
  background: linear-gradient(200deg, rgba(75, 46, 158, 0.24), rgba(11, 26, 21, 0.92));
  border: 1px solid rgba(124, 77, 255, 0.3);
  clip-path: var(--clip-cut);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.page-contact .biz-card:hover {
  border-color: rgba(255, 122, 24, 0.6);
  transform: translateY(-2px);
}

.page-contact .biz-card__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .biz-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17px;
  color: var(--paper);
}

.page-contact .biz-card p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .biz-card__list {
  margin: 0;
  padding: 10px 0 0;
  display: grid;
  gap: 6px;
  list-style: none;
  border-top: 1px dashed rgba(154, 175, 166, 0.22);
}

.page-contact .biz-card__list li {
  position: relative;
  padding-left: 14px;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(244, 241, 232, 0.78);
}

.page-contact .biz-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  background: var(--orange);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
}

.page-contact .contact-biz__foot {
  margin: 20px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--cyan);
  background: rgba(53, 240, 206, 0.06);
  font-size: 14px;
  line-height: 1.75;
  color: rgba(244, 241, 232, 0.88);
}

/* 分流指引 */
.page-contact .contact-route {
  padding: 40px 0 20px;
}

.page-contact .route-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .route-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  background: rgba(18, 41, 31, 0.55);
  border-left: 3px solid rgba(255, 122, 24, 0.55);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.page-contact .route-row:hover {
  background: rgba(30, 58, 44, 0.85);
  border-left-color: var(--orange);
}

.page-contact .route-row__q {
  font-size: 14.5px;
  line-height: 1.65;
  color: rgba(244, 241, 232, 0.88);
}

.page-contact .route-row__to {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: 0.03em;
  color: var(--cyan);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(53, 240, 206, 0.35);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-contact .route-row__to::after {
  content: "→";
  font-size: 13px;
}

.page-contact .route-row__to:hover {
  color: var(--orange-soft);
  border-bottom-color: var(--line-warm);
}

/* 平板与桌面 */
@media (min-width: 640px) {
  .page-contact .checklist {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact .desk-list__row {
    grid-template-columns: 96px 1fr;
    gap: 16px;
    align-items: baseline;
  }

  .page-contact .route-row {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 18px 22px;
  }

  .page-contact .route-row__to {
    align-self: center;
  }
}

@media (min-width: 820px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .page-contact .biz-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .page-contact .contact-channels__diagram {
    max-width: 460px;
    margin: 32px 0 0 auto;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: end;
    gap: 40px;
  }

  .page-contact .contact-prep__grid {
    grid-template-columns: 0.85fr 1.15fr;
    gap: 40px;
    align-items: start;
  }

  .page-contact .contact-desk__grid {
    grid-template-columns: 1.35fr 0.65fr;
    gap: 24px;
    align-items: start;
  }

  .page-contact .contact-desk__panel {
    padding: 30px 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .biz-card,
  .page-contact .checklist__mark,
  .page-contact .route-row {
    transition: none;
  }

  .page-contact .channel-card:hover,
  .page-contact .channel-card:focus-within,
  .page-contact .biz-card:hover {
    transform: none;
  }
}