/* ===== 联系通道 / page-contact ===== */
.page-contact { color: var(--ink); }
.page-contact figure { margin: 0; }
.page-contact img { display: block; max-width: 100%; height: auto; }
.page-contact .media-frame img { width: 100%; height: 100%; object-fit: cover; }

.page-contact a:focus-visible,
.page-contact button:focus-visible,
.page-contact summary:focus-visible { outline: 2px solid var(--orange); outline-offset: 3px; }

/* 首屏 */
.page-contact .contact-hero { padding-top: clamp(20px, 3vw, 40px); }
.page-contact .contact-hero-grid { display: grid; gap: clamp(26px, 4vw, 48px); align-items: end; }
.page-contact .contact-hero-title { margin: 14px 0 0; }
.page-contact .contact-hero-copy .lede { margin: 20px 0 0; max-width: 32em; font-size: clamp(16px, 1.8vw, 18px); line-height: 1.75; }
.page-contact .contact-hero-media { width: 100%; }

.page-contact .hero-facts { list-style: none; margin: clamp(22px, 3vw, 34px) 0 0; padding: 0; display: grid; gap: 12px; max-width: 32em; }
.page-contact .hero-facts li { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 14px; border-top: var(--line) solid var(--ink); padding-top: 10px; font-size: 15px; line-height: 1.5; color: var(--muted); }
.page-contact .hero-facts strong { font-family: var(--font-mono); font-size: clamp(17px, 2vw, 20px); letter-spacing: 0.04em; color: var(--ink); }

@media (min-width: 900px) {
  .page-contact .contact-hero-grid { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
}

/* 三条通道 */
.page-contact .channel-list { display: grid; gap: clamp(22px, 2.8vw, 34px); }
.page-contact .channel { --ch: var(--moss); display: grid; gap: 14px; }
.page-contact .channel--email { --ch: var(--spring); }
.page-contact .channel--phone { --ch: var(--lake); }
.page-contact .channel--mail { --ch: var(--mist); }

.page-contact .channel-node {
  display: grid;
  gap: 6px;
  align-content: start;
  padding: 18px 20px;
  background: var(--paper);
  border: var(--line) solid var(--ink);
  border-left: 10px solid var(--ch);
  box-shadow: var(--shadow-hard-sm);
}
.page-contact .node-num { font-size: 13px; letter-spacing: 0.12em; color: var(--muted); }
.page-contact .node-title { margin: 0; font-family: var(--font-display); font-weight: 800; font-size: clamp(20px, 2.6vw, 24px); letter-spacing: -0.01em; line-height: 1.15; }
.page-contact .node-tag { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em; color: var(--muted); }

.page-contact .channel-link { display: none; color: var(--ink); }
.page-contact .channel-link svg { width: 64px; height: 64px; overflow: visible; }
.page-contact .channel-link polyline { transition: stroke-width 160ms var(--ease); }
.page-contact .channel:hover .channel-link polyline { stroke-width: 4; }

.page-contact .channel-card {
  padding: clamp(18px, 2.6vw, 26px);
  background: var(--frost);
  border: var(--line) solid var(--ink);
  box-shadow: var(--shadow-hard-sm);
}
.page-contact .card-label { margin: 0 0 10px; font-size: 12px; letter-spacing: 0.14em; color: var(--muted); }

.page-contact .copy-btn {
  display: block;
  width: 100%;
  margin: 0;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.2vw, 20px);
  letter-spacing: 0.04em;
  line-height: 1.3;
  text-align: left;
  color: var(--ink);
  background: var(--paper);
  border: var(--line) solid var(--ink);
  box-shadow: var(--shadow-hard-sm);
  cursor: pointer;
  transition: transform 120ms var(--ease), box-shadow 120ms var(--ease), background-color 120ms var(--ease);
}
.page-contact .copy-btn:hover { transform: translate(-2px, -2px); box-shadow: var(--shadow-hard); }
.page-contact .copy-btn.is-copied { background: var(--spring); }
.page-contact .copy-btn--wrap { white-space: normal; word-break: break-word; font-size: clamp(14px, 1.9vw, 17px); line-height: 1.5; }

.page-contact .copy-hint { margin: 8px 0 0; font-size: 13px; line-height: 1.6; }

.page-contact .channel-uses { list-style: none; margin: 16px 0 0; padding: 0; display: grid; gap: 8px; font-size: 15px; line-height: 1.65; }
.page-contact .channel-uses li { position: relative; padding-left: 18px; }
.page-contact .channel-uses li::before { content: ""; position: absolute; left: 0; top: 0.58em; width: 8px; height: 8px; background: var(--ch); }

.page-contact .channel-note { margin: 16px 0 0; padding-left: 12px; border-left: 4px solid var(--ch); font-family: var(--font-body); font-size: 14px; line-height: 1.75; color: var(--muted); }

@media (min-width: 900px) {
  .page-contact .channel { grid-template-columns: minmax(0, 250px) 64px minmax(0, 1fr); gap: 0; align-items: center; }
  .page-contact .channel-link { display: flex; align-items: center; justify-content: center; }
}

/* 来信准备 */
.page-contact .prep-grid { display: grid; gap: clamp(26px, 3.4vw, 44px); }
.page-contact .prep-items { display: grid; gap: 18px; align-content: start; }
.page-contact .prep-item { border-top: 6px solid var(--pc, var(--ink)); padding-top: 12px; }
.page-contact .prep-item:nth-child(1) { --pc: var(--spring); }
.page-contact .prep-item:nth-child(2) { --pc: var(--lake); }
.page-contact .prep-item:nth-child(3) { --pc: var(--amber); }
.page-contact .prep-num { font-size: 13px; letter-spacing: 0.1em; color: var(--muted); }
.page-contact .prep-title { margin: 6px 0 8px; font-family: var(--font-display); font-weight: 800; font-size: clamp(18px, 2.2vw, 22px); line-height: 1.2; }
.page-contact .prep-body { margin: 0; font-size: 16px; line-height: 1.8; }

.page-contact .prep-aside { display: grid; gap: 18px; align-content: start; }
.page-contact .prep-media { width: 100%; }

.page-contact .prep-packs { display: grid; }
.page-contact .prep-pack { border: var(--line) solid var(--ink); background: var(--paper); }
.page-contact .prep-pack + .prep-pack { border-top: 0; }
.page-contact .prep-pack[open] { box-shadow: inset 8px 0 0 var(--amber); }
.page-contact .prep-pack > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 13px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  transition: background-color 120ms var(--ease);
}
.page-contact .prep-pack > summary::-webkit-details-marker { display: none; }
.page-contact .prep-pack > summary::after { content: "+"; font-family: var(--font-mono); font-size: 18px; color: var(--moss); }
.page-contact .prep-pack[open] > summary::after { content: "−"; }
.page-contact .prep-pack > summary:hover { background: var(--frost); }
.page-contact .pack-list { margin: 0; padding: 2px 16px 16px 34px; font-size: 14px; line-height: 1.8; }

@media (min-width: 900px) {
  .page-contact .prep-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; }
}

/* 服务时间 */
.page-contact .hours-panel {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4vw, 52px);
  background: var(--moss);
  color: var(--paper);
  border: var(--line) solid var(--ink);
  box-shadow: var(--shadow-hard);
}
.page-contact .hours-panel::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 8px; background: var(--lake); }
.page-contact .hours-panel h2 { margin: 14px 0 0; color: var(--paper); }
.page-contact .hours-panel .coord { color: var(--frost); }
.page-contact .hours-lede { margin: 16px 0 0; max-width: 40em; font-family: var(--font-body); font-size: 16px; line-height: 1.8; color: var(--frost); }

.page-contact .hours-grid { display: grid; gap: 20px; margin-top: clamp(24px, 3vw, 38px); }
.page-contact .hours-cell { border-top: 6px solid var(--hc, var(--spring)); padding-top: 12px; }
.page-contact .hours-cell--a { --hc: var(--spring); }
.page-contact .hours-cell--b { --hc: var(--amber); }
.page-contact .hours-cell--c { --hc: var(--mist); }
.page-contact .hours-num { display: block; font-family: var(--font-display); font-weight: 800; font-size: clamp(26px, 3.6vw, 40px); letter-spacing: -0.02em; line-height: 1; color: var(--paper); }
.page-contact .hours-label { display: block; margin-top: 10px; font-size: 14px; line-height: 1.6; color: var(--frost); }

.page-contact .hours-note { margin: 28px 0 0; max-width: 46em; font-family: var(--font-body); font-size: 15px; line-height: 1.8; color: var(--frost); }
.page-contact .hours-note a { color: var(--apricot); text-underline-offset: 3px; }

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

/* 企业与渠道 */
.page-contact .adapt-grid { display: grid; gap: clamp(26px, 3.4vw, 48px); }
.page-contact .adapt-copy h2 { margin: 14px 0 0; }
.page-contact .adapt-copy p { margin: 18px 0 0; font-family: var(--font-body); font-size: 16px; line-height: 1.85; }
.page-contact .adapt-links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }

.page-contact .adapt-facts { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; align-content: start; }
.page-contact .adapt-fact {
  padding: 16px 18px;
  background: var(--paper);
  border: var(--line) solid var(--ink);
  border-top: 8px solid var(--fc, var(--moss));
  box-shadow: var(--shadow-hard-sm);
}
.page-contact .adapt-fact:nth-child(1) { --fc: var(--spring); }
.page-contact .adapt-fact:nth-child(2) { --fc: var(--lake); }
.page-contact .adapt-fact:nth-child(3) { --fc: var(--amber); }
.page-contact .adapt-fact:nth-child(4) { --fc: var(--brick); }
.page-contact .fact-num { display: block; font-family: var(--font-display); font-weight: 800; font-size: clamp(24px, 3vw, 32px); letter-spacing: -0.02em; line-height: 1.05; }
.page-contact .fact-label { display: block; margin-top: 6px; font-size: 14px; line-height: 1.65; color: var(--muted); }

@media (min-width: 600px) {
  .page-contact .adapt-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 900px) {
  .page-contact .adapt-grid { grid-template-columns: minmax(0, 6fr) minmax(0, 6fr); align-items: start; }
}

/* 寄送材料 */
.page-contact .mail-grid { display: grid; gap: clamp(22px, 3vw, 36px); align-items: start; }
.page-contact .address-block {
  padding: clamp(20px, 3vw, 30px);
  background: var(--wash);
  border: var(--line) solid var(--ink);
  border-left: 10px solid var(--mist);
  box-shadow: var(--shadow-hard);
}
.page-contact .address-text { margin: 8px 0 0; font-family: var(--font-body); font-size: clamp(18px, 2.2vw, 22px); line-height: 1.65; }
.page-contact .address-sub { margin: 14px 0 0; font-size: 14px; line-height: 1.7; }

.page-contact .mail-steps { list-style: none; margin: 0; padding: 0; display: grid; border-top: var(--line) solid var(--ink); }
.page-contact .mail-step { display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--mist); }
.page-contact .step-num { font-size: 13px; letter-spacing: 0.1em; color: var(--muted); padding-top: 3px; }
.page-contact .step-title { margin: 0; font-family: var(--font-display); font-weight: 700; font-size: 16px; line-height: 1.4; }
.page-contact .mail-step p { margin: 6px 0 0; font-family: var(--font-body); font-size: 15px; line-height: 1.75; color: var(--muted); }

.page-contact .mail-note { margin-top: clamp(22px, 3vw, 32px); font-size: 14px; line-height: 1.75; }

@media (min-width: 900px) {
  .page-contact .mail-grid { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
}

/* 底部快捷路径 */
.page-contact .contact-next { padding-bottom: clamp(40px, 6vw, 80px); }
.page-contact .next-rule { position: relative; height: 2px; margin: 0 0 22px; background: var(--ink); }
.page-contact .next-rule::after { content: ""; position: absolute; right: 0; top: -5px; width: 0; height: 0; border-left: 12px solid var(--ink); border-top: 6px solid transparent; border-bottom: 6px solid transparent; }

.page-contact .next-grid { display: grid; gap: 12px; }
.page-contact .next-card {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  color: var(--ink);
  text-decoration: none;
  background: var(--paper);
  border: var(--line) solid var(--ink);
  box-shadow: var(--shadow-hard-sm);
  transition: transform 120ms var(--ease), box-shadow 120ms var(--ease), background-color 120ms var(--ease);
}
.page-contact .next-card:hover { transform: translate(-2px, -2px); box-shadow: var(--shadow-hard); background: var(--frost); }
.page-contact .next-label { font-size: 12px; letter-spacing: 0.14em; color: var(--muted); }
.page-contact .next-title { font-family: var(--font-display); font-weight: 800; font-size: 16px; line-height: 1.4; }

@media (min-width: 640px) {
  .page-contact .next-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1000px) {
  .page-contact .next-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact * { transition: none !important; }
  .page-contact .copy-btn:hover,
  .page-contact .next-card:hover { transform: none; }
}
</main>