/* ===================== 合作洽谈页 / page-contact ===================== */

.page-contact {
  --c-panel: rgba(11, 42, 30, 0.55);
  --c-panel-strong: rgba(16, 88, 58, 0.42);
  --c-hair: rgba(185, 199, 192, 0.14);
  color: var(--silver-100);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-contact .contact-crumbs {
  padding-top: clamp(92px, 13vw, 128px);
}

.page-contact .breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: var(--fs-200);
  color: var(--silver-300);
}

.page-contact .breadcrumb a {
  color: var(--silver-300);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--neon-450);
  border-bottom-color: var(--neon-450);
}

.page-contact .breadcrumb [aria-current="page"] {
  color: var(--silver-100);
}

.page-contact .breadcrumb__sep {
  color: var(--turf-600);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding: clamp(28px, 5vw, 48px) 0 clamp(52px, 8vw, 92px);
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
}

.page-contact .contact-hero h1 {
  margin: 14px 0 18px;
  font-size: clamp(2rem, 6.6vw, 3.4rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--silver-100);
}

.page-contact .contact-hero .lede {
  max-width: 34em;
  margin: 0;
  font-size: var(--fs-300);
  line-height: 1.85;
  color: var(--silver-300);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 4vw, 34px);
}

.page-contact .contact-hero__panel {
  margin: 0;
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(155deg, var(--turf-800) 0%, var(--night-900) 78%);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.page-contact .contact-hero__panel img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 900 / 640;
  object-fit: cover;
}

.page-contact .contact-hero__note {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin: 0;
  padding: 16px 20px;
  font-size: var(--fs-200);
  color: var(--silver-300);
  background: rgba(5, 16, 11, 0.6);
  border-top: 1px solid var(--line);
}

.page-contact .contact-hero__note .numeric {
  font-family: var(--font-mono);
  font-size: var(--fs-300);
  font-variant-numeric: tabular-nums;
  color: var(--neon-450);
}

/* ---------- 区块节奏 ---------- */
.page-contact .section {
  padding-block: clamp(46px, 7vw, 84px);
}

.page-contact .section-head {
  max-width: 700px;
}

.page-contact .section-head .lede {
  margin-top: 12px;
  font-size: var(--fs-300);
  line-height: 1.8;
  color: var(--silver-300);
}

.page-contact .section-title {
  margin: 10px 0 0;
  font-size: clamp(1.5rem, 4.2vw, 2.15rem);
  line-height: 1.25;
  color: var(--silver-100);
}

/* ---------- 渠道卡片 ---------- */
.page-contact .channel-cards {
  display: grid;
  gap: 16px;
  margin-top: clamp(26px, 4vw, 44px);
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 26px 22px 26px 30px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  background: var(--c-panel);
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease), transform 0.35s var(--ease);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 4px;
  border-radius: 0 var(--radius-pill) var(--radius-pill) 0;
  background: var(--volt-500);
  transition: top 0.35s var(--ease), bottom 0.35s var(--ease);
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  background: var(--c-panel-strong);
  border-color: rgba(52, 217, 139, 0.42);
  transform: translateY(-4px);
}

.page-contact .channel-card:hover::before,
.page-contact .channel-card:focus-within::before {
  top: 0;
  bottom: 0;
}

.page-contact .channel-card h3 {
  margin: 0;
  font-size: var(--fs-400);
  font-weight: 600;
  color: var(--silver-100);
}

.page-contact .channel-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-300);
  line-height: 1.5;
  font-variant-numeric: tabular-nums;
  color: var(--neon-450);
  overflow-wrap: anywhere;
}

.page-contact .channel-card__value--mail {
  font-size: var(--fs-200);
  color: var(--silver-100);
}

.page-contact .channel-card__value--addr {
  font-family: var(--font-body);
  font-size: var(--fs-300);
  color: var(--silver-100);
}

.page-contact .channel-card__use {
  margin: 0;
  font-size: var(--fs-200);
  line-height: 1.75;
  color: var(--silver-300);
}

/* ---------- 响应时段时间带 ---------- */
.page-contact .timeband {
  margin-top: clamp(26px, 4vw, 42px);
  padding: clamp(22px, 4vw, 36px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(120deg, rgba(11, 42, 30, 0.9), rgba(5, 16, 11, 0.88));
}

.page-contact .timeband__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.page-contact .timeband__clock {
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 4.4vw, 2.1rem);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--silver-100);
}

.page-contact .timeband__caption {
  font-size: var(--fs-200);
  letter-spacing: 0.14em;
  color: var(--silver-300);
}

.page-contact .timeband__track {
  position: relative;
  height: 12px;
  border-radius: var(--radius-pill);
  background: rgba(185, 199, 192, 0.12);
  overflow: hidden;
}

.page-contact .timeband__fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 100%;
  border-radius: var(--radius-pill);
  background-color: var(--neon-450);
  background-image: repeating-linear-gradient(
    115deg,
    rgba(5, 16, 11, 0.24) 0 8px,
    transparent 8px 18px
  );
}

.page-contact .timeband__channels {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .timeband__channels li {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 13px 16px;
  border-left: 2px solid var(--turf-600);
  border-radius: var(--radius-sm);
  background: rgba(5, 16, 11, 0.5);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.page-contact .timeband__channels li:hover,
.page-contact .timeband__channels li:focus-within {
  border-left-color: var(--volt-500);
  background: rgba(16, 88, 58, 0.4);
}

.page-contact .timeband__ch {
  font-size: var(--fs-300);
  color: var(--silver-100);
}

.page-contact .timeband__channels em {
  font-style: normal;
  font-size: var(--fs-200);
  color: var(--silver-300);
}

/* ---------- 分主题指引 ---------- */
.page-contact .guide {
  display: grid;
  gap: 16px;
}

.page-contact .guide__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(2.4rem, 6.5vw, 3.6rem);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.02em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(52, 217, 139, 0.55);
}

.page-contact .guide__body h2 {
  margin: 0 0 14px;
  font-size: clamp(1.45rem, 4vw, 2.05rem);
  line-height: 1.28;
  color: var(--silver-100);
}

.page-contact .guide__text {
  margin: 0;
  max-width: 42em;
  font-size: var(--fs-300);
  line-height: 1.85;
  color: var(--silver-300);
}

.page-contact .checklist {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .checklist li {
  position: relative;
  padding: 14px 16px 14px 34px;
  border-left: 2px solid var(--turf-600);
  border-radius: var(--radius-sm);
  background: rgba(16, 88, 58, 0.24);
  font-size: var(--fs-200);
  line-height: 1.7;
  color: var(--silver-300);
}

.page-contact .checklist li::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 21px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon-450);
}

.page-contact .checklist strong {
  display: block;
  margin-bottom: 3px;
  font-size: var(--fs-300);
  font-weight: 600;
  color: var(--silver-100);
}

/* ---------- 商务合作方向 ---------- */
.page-contact .direction-list {
  display: grid;
  gap: 14px;
  align-items: start;
  margin-top: clamp(26px, 4vw, 42px);
}

.page-contact .direction {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--c-panel);
  overflow: hidden;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.page-contact .direction:hover {
  border-color: var(--line-strong);
}

.page-contact .direction[open] {
  border-color: rgba(52, 217, 139, 0.45);
  background: var(--c-panel-strong);
}

.page-contact .direction summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 20px;
  cursor: pointer;
  list-style: none;
  font-size: var(--fs-400);
  font-weight: 600;
  color: var(--silver-100);
}

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

.page-contact .direction summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--fs-500);
  line-height: 1;
  color: var(--volt-500);
}

.page-contact .direction[open] summary::after {
  content: "–";
}

.page-contact .direction__body {
  padding: 0 20px 22px;
}

.page-contact .direction__body p {
  margin: 0 0 12px;
  font-size: var(--fs-200);
  line-height: 1.75;
  color: var(--silver-300);
}

.page-contact .direction__body .direction__label {
  margin: 0 0 8px;
  font-size: var(--fs-100);
  letter-spacing: 0.14em;
  color: var(--neon-450);
}

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

.page-contact .direction__list li {
  position: relative;
  padding-left: 16px;
  font-size: var(--fs-200);
  line-height: 1.7;
  color: var(--silver-300);
}

.page-contact .direction__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--turf-600);
}

/* ---------- 来访与备案 ---------- */
.page-contact .visit__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: center;
}

.page-contact .visit__text .lede {
  margin: 12px 0 0;
  max-width: 34em;
  font-size: var(--fs-300);
  line-height: 1.85;
  color: var(--silver-300);
}

.page-contact .visit__meta {
  margin: clamp(22px, 3vw, 30px) 0 0;
  display: grid;
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--c-hair);
  overflow: hidden;
}

.page-contact .visit__meta > div {
  padding: 14px 18px;
  background: var(--c-panel);
}

.page-contact .visit__meta dt {
  margin-bottom: 4px;
  font-size: var(--fs-100);
  letter-spacing: 0.1em;
  color: var(--silver-300);
}

.page-contact .visit__meta dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-300);
  line-height: 1.6;
  color: var(--silver-100);
  overflow-wrap: anywhere;
}

.page-contact .visit__media {
  margin: 0;
}

.page-contact .visit__media img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  object-fit: cover;
}

/* ---------- 收尾 ---------- */
.page-contact .contact-close__inner {
  padding: clamp(28px, 5vw, 56px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 140% at 0% 0%, rgba(16, 88, 58, 0.55), transparent 62%),
    linear-gradient(140deg, rgba(11, 42, 30, 0.92), rgba(5, 16, 11, 0.95));
}

.page-contact .contact-close__inner h2 {
  margin: 0;
  font-size: clamp(1.45rem, 4vw, 2rem);
  line-height: 1.28;
  color: var(--silver-100);
}

.page-contact .contact-close__lede {
  margin: 14px 0 0;
  max-width: 44em;
  font-size: var(--fs-300);
  line-height: 1.85;
  color: var(--silver-300);
}

.page-contact .contact-close__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .contact-close__note {
  margin: 18px 0 0;
  max-width: 44em;
  font-size: var(--fs-200);
  line-height: 1.7;
  color: var(--silver-300);
}

.page-contact .contact-close__note a {
  color: var(--neon-450);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---------- 焦点可见 ---------- */
.page-contact a:focus-visible,
.page-contact summary:focus-visible {
  outline: 2px solid var(--neon-450);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 780px) {
  .page-contact .channel-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

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

@media (min-width: 700px) {
  .page-contact .checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 840px) {
  .page-contact .direction-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: 1.02fr 0.98fr;
  }

  .page-contact .guide {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-contact .guide--flip {
    grid-template-columns: minmax(0, 1fr) 92px;
  }

  .page-contact .guide--flip .guide__num {
    order: 2;
    text-align: right;
  }

  .page-contact .guide--flip .guide__body {
    order: 1;
  }
}

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

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}