.page-contact {
  --slip-bg: linear-gradient(145deg, rgba(30, 27, 46, .94), rgba(20, 18, 31, .98));
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--gutter) clamp(64px, 8vw, 110px);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.85;
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  display: grid;
  gap: 28px;
  padding: clamp(26px, 5vw, 52px) 0 clamp(10px, 2.5vw, 22px);
}

.page-contact .grid-mesh {
  position: absolute;
  inset: -6% -4% 12%;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(201, 162, 39, .14) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(201, 162, 39, .14) 1px, transparent 1px);
  background-size: 52px 52px;
  -webkit-mask-image: radial-gradient(130% 100% at 8% 0%, #000 0%, rgba(0, 0, 0, .34) 48%, transparent 78%);
  mask-image: radial-gradient(130% 100% at 8% 0%, #000 0%, rgba(0, 0, 0, .34) 48%, transparent 78%);
}

.page-contact .hero-copy,
.page-contact .contact-hero > .figure {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero h1 {
  margin: 10px 0 16px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(34px, 7.4vw, 62px);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--text);
  background: linear-gradient(104deg, #ffffff 0%, var(--gold-hi) 48%, var(--gold) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-contact .contact-hero .lead {
  max-width: 58ch;
  color: var(--muted);
}

.page-contact .contact-hero .tag-row {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .hero-figure {
  margin: 0;
}

@media (min-width: 880px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .9fr);
    align-items: center;
    gap: clamp(28px, 4vw, 56px);
  }
}

/* ---------- 通用章节 ---------- */

.page-contact .section {
  position: relative;
  padding: clamp(46px, 7vw, 84px) 0 0;
}

.page-contact .section-head {
  position: relative;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-contact .section-num {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-accent);
  font-size: clamp(40px, 6vw, 64px);
  line-height: 1;
  color: var(--gold);
  opacity: .45;
}

.page-contact .section-title {
  margin: 4px 0 12px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.24;
  letter-spacing: -.01em;
  color: #fff;
}

.page-contact .section-head .lead {
  max-width: 64ch;
  color: var(--muted);
}

/* ---------- 01 自助通道 ---------- */

.page-contact .self-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: clamp(20px, 3vw, 28px);
}

.page-contact .self-card h3,
.page-contact .collab-card h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 20px;
  line-height: 1.4;
  color: #fff;
}

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

.page-contact .tick-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .tick-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: linear-gradient(135deg, var(--gold-hi), var(--gold));
  transform: translateY(-50%);
}

.page-contact .self-card--sub .tick-list li::before {
  background: linear-gradient(135deg, var(--cyan), rgba(52, 224, 224, .35));
}

.page-contact .self-card .link-more {
  margin-top: auto;
}

/* ---------- 02 渠道说明牌 ---------- */

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

.page-contact .board-slip {
  position: relative;
  display: grid;
  gap: 16px;
  padding: 22px clamp(18px, 3vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--slip-bg);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform .24s var(--ease), border-color .24s var(--ease);
}

.page-contact .board-slip::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--gold-hi), rgba(201, 162, 39, 0));
}

.page-contact .board-slip::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 230px;
  height: 230px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201, 162, 39, .17), transparent 70%);
  pointer-events: none;
}

.page-contact .board-slip:hover {
  transform: translateY(-4px);
  border-color: rgba(201, 162, 39, .55);
}

.page-contact .slip-index {
  font-family: var(--font-accent);
  font-size: 34px;
  line-height: 1;
  color: var(--gold);
  opacity: .6;
}

.page-contact .slip-who h3 {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: .05em;
  color: #fff;
}

.page-contact .slip-address {
  margin: 0;
  font-size: 19px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: .01em;
  color: var(--gold-hi);
  font-variant-numeric: tabular-nums;
  word-break: break-word;
}

.page-contact .slip-address--text {
  font-size: 16px;
  font-weight: 500;
  line-height: 1.72;
  color: var(--text);
}

.page-contact .slip-body p {
  margin: 0 0 10px;
  font-size: 15px;
  color: var(--text);
}

.page-contact .slip-body ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-contact .slip-body li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .slip-body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .76em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  opacity: .8;
  transform: translateY(-50%);
}

.page-contact .slip-when {
  display: grid;
  align-content: center;
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(30, 27, 46, .6);
}

.page-contact .slip-when-label {
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .slip-when strong {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--gold-hi);
  font-variant-numeric: tabular-nums;
}

@media (min-width: 900px) {
  .page-contact .board-slip {
    grid-template-columns: 64px minmax(190px, 240px) minmax(0, 1fr) 172px;
    align-items: center;
    gap: 26px;
  }
}

.page-contact .channel-map {
  margin: clamp(22px, 3.4vw, 34px) 0 0;
}

/* ---------- 03 准备清单 ---------- */

.page-contact .prep {
  display: grid;
  gap: 22px;
}

.page-contact .prep-rail {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 190px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
  overflow: hidden;
}

.page-contact .prep-mesh {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(52, 224, 224, .16) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(52, 224, 224, .16) 1px, transparent 1px);
  background-size: 34px 34px;
  -webkit-mask-image: radial-gradient(92% 92% at 18% 8%, #000, transparent 76%);
  mask-image: radial-gradient(92% 92% at 18% 8%, #000, transparent 76%);
}

.page-contact .prep-rail-note {
  position: relative;
  z-index: 1;
  margin: 0;
  font-family: var(--font-accent);
  font-size: clamp(18px, 2.4vw, 23px);
  line-height: 1.6;
  color: var(--gold-hi);
}

.page-contact .prep-body .section-head {
  margin-bottom: clamp(16px, 2.4vw, 24px);
}

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

.page-contact .prep-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(20, 18, 31, .82);
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
  cursor: pointer;
  transition: border-color .2s var(--ease), background .2s var(--ease), color .2s var(--ease);
}

.page-contact .prep-item:hover {
  border-color: rgba(201, 162, 39, .5);
}

.page-contact .prep-item input {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  flex: none;
  width: 20px;
  height: 20px;
  margin: 3px 0 0;
  border: 1.5px solid var(--line);
  border-radius: 6px;
  background: var(--ink);
  cursor: pointer;
  transition: background .2s var(--ease), border-color .2s var(--ease);
}

.page-contact .prep-item input:checked {
  border-color: var(--gold);
  background: rgba(201, 162, 39, .18);
}

.page-contact .prep-item input:checked::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--gold-hi);
  border-bottom: 2px solid var(--gold-hi);
  transform: rotate(42deg);
}

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

.page-contact .prep-item:has(input:checked) {
  border-color: rgba(201, 162, 39, .45);
  color: var(--gold-hi);
}

@media (min-width: 900px) {
  .page-contact .prep {
    grid-template-columns: minmax(0, .68fr) minmax(0, 1.32fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }

  .page-contact .prep-rail {
    min-height: 100%;
  }
}

/* ---------- 04 合作对接 ---------- */

.page-contact .collab-card {
  display: grid;
  align-content: start;
  gap: 14px;
  padding: clamp(20px, 3vw, 28px);
}

.page-contact .collab-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 收束条 ---------- */

.page-contact .contact-tail {
  margin-top: clamp(48px, 7vw, 86px);
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 160% at 100% 0%, rgba(201, 162, 39, .17), transparent 62%),
    var(--ink-2);
  display: grid;
  gap: 12px;
  justify-items: start;
}

.page-contact .contact-tail p {
  margin: 0;
  max-width: 62ch;
}

.page-contact .contact-tail p:first-child {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(19px, 2.6vw, 24px);
  line-height: 1.35;
  color: #fff;
}

.page-contact .contact-tail p + p {
  font-size: 15px;
  color: var(--muted);
}

.page-contact .tail-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  margin-top: 6px;
}

@media (max-width: 520px) {
  .page-contact .grid-mesh {
    background-size: 38px 38px;
  }

  .page-contact .slip-index {
    font-size: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .board-slip,
  .page-contact .prep-item,
  .page-contact .prep-item input {
    transition: none;
  }

  .page-contact .board-slip:hover {
    transform: none;
  }
}