/* 跨境 B2B 询盘 GEO 产品页 */

.cb-page .site-footer { margin-top: 0; }

.cb-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(72px, 10vw, 132px) 0 clamp(68px, 9vw, 112px);
}

.cb-hero::before {
  content: '';
  position: absolute;
  width: min(760px, 72vw);
  aspect-ratio: 1;
  right: -260px;
  top: -360px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 44% 42%, oklch(0.75 0.15 215 / .23), transparent 34%),
    radial-gradient(circle, oklch(0.60 0.20 250 / .16), transparent 68%);
  pointer-events: none;
}

.cb-hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(340px, .78fr);
  gap: clamp(44px, 7vw, 92px);
  align-items: center;
}

.cb-kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  color: var(--fg-2);
  font-size: 14px;
  font-weight: 600;
}

.cb-kicker strong {
  color: var(--accent);
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: .13em;
}

.cb-title {
  max-width: 12ch;
  font-size: clamp(42px, 6.2vw, 78px);
}

.cb-title .cb-title-line {
  display: block;
  color: var(--accent);
  font-family: var(--font-serif);
  font-weight: 600;
}

.cb-hero-lede {
  max-width: 670px;
  margin: 28px 0 0;
  font-size: clamp(17px, 1.65vw, 20px);
  line-height: 1.8;
}

.cb-hero-lede strong { color: var(--fg); }

.cb-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.cb-audience {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 30px;
}

.cb-audience span {
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: oklch(0.99 0.004 240 / .7);
  color: var(--fg-2);
  font: 600 11px/1.2 var(--font-en);
  letter-spacing: .04em;
}

.buyer-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-xl);
  background: var(--bg-ink);
  color: var(--fg-on-ink);
  padding: clamp(26px, 3vw, 38px);
  box-shadow: var(--shadow-lg);
}

.buyer-card::after {
  content: 'AI';
  position: absolute;
  right: -20px;
  bottom: -56px;
  color: oklch(0.72 0.17 230 / .08);
  font: 700 160px/1 var(--font-en);
  pointer-events: none;
}

.buyer-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding-bottom: 22px;
  border-bottom: 1px solid oklch(0.42 0.03 245);
}

.buyer-label {
  font: 600 10px/1.2 var(--font-en);
  letter-spacing: .18em;
  color: var(--accent-glow);
}

.buyer-live {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: oklch(0.78 0.12 165);
  font: 600 10px/1 var(--font-en);
  letter-spacing: .12em;
}

.buyer-live::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--good);
  box-shadow: 0 0 0 5px oklch(0.65 0.16 160 / .12);
}

.buyer-prompt {
  margin: 24px 0;
  padding: 18px;
  border-radius: var(--r-md);
  background: oklch(0.25 0.05 250);
  color: oklch(0.93 0.012 235);
  font: 500 14px/1.8 var(--font-en);
}

.buyer-prompt span {
  display: block;
  margin-bottom: 8px;
  color: oklch(0.68 0.08 230);
  font-size: 10px;
  letter-spacing: .14em;
}

.buyer-path {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 10px;
}

.buyer-path div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid oklch(0.38 0.03 245);
  color: oklch(0.78 0.012 235);
  font-size: 13px;
}

.buyer-path div:last-child { border-bottom: 0; }
.buyer-path strong { color: white; font-size: 14px; }
.buyer-path b { color: var(--accent-glow); font: 600 10px/1 var(--font-en); }

.cb-band {
  border-block: 1px solid var(--line);
  background: oklch(0.968 0.013 235 / .75);
}

.cb-band-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 24px;
  align-items: center;
  min-height: 110px;
}

.cb-band-item span {
  display: block;
  color: var(--fg-3);
  font: 600 10px/1.2 var(--font-en);
  letter-spacing: .15em;
  margin-bottom: 8px;
}

.cb-band-item strong { font-size: 15px; }
.cb-band-arrow { color: var(--accent); font-size: 22px; }

.cb-section-head {
  max-width: 820px;
  margin-bottom: 46px;
}

.cb-section-head .lede { margin-top: 18px; }

.problem-grid,
.platform-grid,
.guard-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.problem-card,
.guard-card {
  min-height: 250px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: oklch(0.99 0.004 240 / .82);
}

.problem-num,
.guard-num {
  color: var(--accent);
  font: 600 11px/1 var(--font-en);
  letter-spacing: .15em;
}

.problem-card h3,
.guard-card h3 {
  margin: 56px 0 12px;
  font-size: 21px;
}

.problem-card p,
.guard-card p {
  margin: 0;
  color: var(--fg-2);
  font-size: 14px;
  line-height: 1.8;
}

.process-wrap {
  padding: clamp(30px, 4vw, 52px);
  border-radius: var(--r-xl);
  background: var(--bg-ink);
  color: var(--fg-on-ink);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.process-step {
  position: relative;
  padding: 8px 28px 8px 0;
}

.process-step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 24px;
  right: 16px;
  width: 34px;
  height: 1px;
  background: oklch(0.62 0.13 240 / .7);
}

.process-index {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-bottom: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  font: 700 11px/1 var(--font-en);
}

.process-step h3 { margin: 0 0 12px; font-size: 18px; }
.process-step p { margin: 0; color: oklch(0.74 0.018 235); font-size: 13px; line-height: 1.75; }

.platform-grid { grid-template-columns: 1.5fr 1fr 1fr; }

.platform-card {
  position: relative;
  min-height: 280px;
  padding: 30px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: var(--bg);
}

.platform-card.primary {
  background: var(--accent-soft);
  border-color: oklch(0.80 0.08 245);
}

.platform-type {
  color: var(--accent);
  font: 700 10px/1 var(--font-en);
  letter-spacing: .16em;
}

.platform-card h3 { margin: 54px 0 14px; font-size: 23px; line-height: 1.35; }
.platform-card p { margin: 0; color: var(--fg-2); font-size: 14px; line-height: 1.75; }
.platform-card ul { margin: 18px 0 0; padding: 0; list-style: none; color: var(--fg-2); font-size: 13px; }
.platform-card li { margin-top: 8px; }

.compare-shell {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  background: oklch(0.99 0.004 240 / .8);
}

.compare-row {
  display: grid;
  grid-template-columns: .75fr 1fr 1fr;
  border-bottom: 1px solid var(--line);
}

.compare-row:last-child { border-bottom: 0; }

.compare-row > div {
  padding: 20px 24px;
  border-right: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.65;
}

.compare-row > div:last-child { border-right: 0; }
.compare-row.header { background: var(--bg-ink); color: var(--fg-on-ink); font-weight: 700; }
.compare-label { color: var(--fg-3); font-size: 12px !important; font-weight: 600; }
.compare-cross { color: var(--accent-ink); font-weight: 600; }

.delivery-intro {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 34px;
}

.diagnosis-rule {
  flex: 0 0 auto;
  padding: 12px 18px;
  border: 1px solid oklch(0.78 0.11 245);
  border-radius: var(--r-pill);
  background: var(--accent-soft);
  color: var(--accent-ink);
  font-weight: 700;
  font-size: 13px;
}

.delivery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.delivery-card {
  position: relative;
  min-height: 350px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--bg);
}

.delivery-card:first-child {
  border-color: var(--accent);
  box-shadow: 0 16px 42px oklch(0.58 0.20 250 / .11);
}

.delivery-level {
  color: var(--accent);
  font: 700 10px/1 var(--font-en);
  letter-spacing: .15em;
}

.delivery-card h3 { margin: 26px 0 8px; font-size: 24px; }
.delivery-card > p { margin: 0 0 22px; color: var(--fg-2); font-size: 14px; }
.delivery-card ul { margin: 0; padding: 0; list-style: none; }
.delivery-card li { position: relative; padding: 9px 0 9px 20px; color: var(--fg-2); font-size: 13px; border-top: 1px solid var(--line); }
.delivery-card li::before { content: '·'; position: absolute; left: 4px; color: var(--accent); font-weight: 800; }
.delivery-price { margin-top: 24px; color: var(--fg-3); font-size: 12px; line-height: 1.65; }
.delivery-price strong { color: var(--fg); font-size: 15px; }

.guard-section { background: var(--bg-ink); color: var(--fg-on-ink); }
.guard-section .h-section { color: var(--fg-on-ink); }
.guard-section .lede { color: oklch(0.76 0.018 235); }
.guard-card { border-color: oklch(0.38 0.03 245); background: oklch(0.23 0.045 250); }
.guard-card h3 { color: white; }
.guard-card p { color: oklch(0.74 0.018 235); }
.guard-num { color: var(--accent-glow); }

.cb-faq {
  display: grid;
  grid-template-columns: .7fr 1.3fr;
  gap: clamp(44px, 7vw, 90px);
}

.cb-faq-list { display: grid; gap: 10px; }
.cb-faq-list details { padding: 20px 22px; border: 1px solid var(--line); border-radius: var(--r-md); background: var(--bg); }
.cb-faq-list summary { cursor: pointer; font-weight: 700; list-style: none; }
.cb-faq-list summary::-webkit-details-marker { display: none; }
.cb-faq-list summary::after { content: '+'; float: right; color: var(--accent); font-size: 20px; font-weight: 400; }
.cb-faq-list details[open] summary::after { content: '−'; }
.cb-faq-list p { margin: 14px 0 0; color: var(--fg-2); font-size: 14px; line-height: 1.8; }

.cb-final {
  padding: clamp(80px, 10vw, 130px) 0;
  background: var(--accent-soft);
}

.cb-final-inner {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: center;
  padding: clamp(38px, 6vw, 72px);
  border-radius: var(--r-xl);
  background: var(--bg-ink);
  color: var(--fg-on-ink);
}

.cb-final-inner::after {
  content: '询';
  position: absolute;
  right: 190px;
  bottom: -120px;
  color: oklch(0.68 0.15 235 / .08);
  font-family: var(--font-serif);
  font-size: 280px;
  font-weight: 700;
  pointer-events: none;
}

.cb-final-copy { position: relative; z-index: 2; }
.cb-final-copy .h-section { color: white; max-width: 18ch; }
.cb-final-copy p { max-width: 58ch; margin: 18px 0 0; color: oklch(0.76 0.018 235); }
.cb-final-action { position: relative; z-index: 2; display: flex; flex-direction: column; align-items: flex-end; gap: 12px; }
.cb-final-action small { color: oklch(0.68 0.018 235); }

@media (max-width: 980px) {
  .cb-hero-grid { grid-template-columns: 1fr; }
  .buyer-card { max-width: 680px; }
  .problem-grid, .guard-grid, .delivery-grid { grid-template-columns: 1fr; }
  .problem-card, .guard-card { min-height: 0; }
  .problem-card h3, .guard-card h3 { margin-top: 32px; }
  .delivery-card { min-height: 310px; }
  .platform-grid { grid-template-columns: 1fr; }
  .platform-card { min-height: 0; }
  .platform-card h3 { margin-top: 32px; }
}

@media (max-width: 800px) {
  .cb-band-inner { grid-template-columns: 1fr; gap: 14px; padding-block: 24px; }
  .cb-band-arrow { transform: rotate(90deg); }
  .process-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .process-step:not(:last-child)::after { display: none; }
  .compare-shell { overflow-x: auto; }
  .compare-row { min-width: 720px; }
  .delivery-intro { align-items: flex-start; flex-direction: column; }
  .cb-faq { grid-template-columns: 1fr; }
  .cb-final-inner { grid-template-columns: 1fr; }
  .cb-final-action { align-items: flex-start; }
}

@media (max-width: 540px) {
  .cb-hero { padding-top: 58px; }
  .cb-title { font-size: clamp(38px, 12vw, 54px); }
  .cb-actions { flex-direction: column; align-items: stretch; }
  .cb-actions .btn { justify-content: center; }
  .buyer-card { padding: 24px 20px; }
  .process-grid { grid-template-columns: 1fr; }
  .process-step { padding-right: 0; }
  .cb-final-inner { padding: 34px 24px; }
}