:root {
  color-scheme: light;
  --ink: #0b0b0f;
  --muted: #6b6f76;
  --faint: #8b9097;
  --line: #e7e8ec;
  --line-strong: #d6d8de;
  --panel: #ffffff;
  --soft: #faf8f7;
  --soft-red: #fff7f7;
  --accent: #d71920;
  --accent-dark: #a80f15;
  --heading-brown: #6b3f2a;
  --card-shadow: 0 1px 3px rgba(12, 15, 20, 0.06);
  --panel-shadow: 0 20px 70px rgba(12, 15, 20, 0.08);
  --content-width: 1600px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 50% 10%, rgba(215, 25, 32, 0.04), rgba(0, 0, 0, 0) 34%),
    linear-gradient(#fffdfc 0%, #faf7f5 58%, #f8f8f9 100%);
  line-height: 1.5;
}

a {
  color: var(--heading-brown);
}

.page {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 20px 40px 80px;
}

.site-header {
  padding-bottom: 16px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.brand-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.brand-logo-link {
  flex-shrink: 0;
  line-height: 0;
}

.brand-logo {
  height: 44px;
  width: auto;
  display: block;
}

.brand-title h1 {
  font-size: 1.5rem;
  margin: 0 0 4px;
}

.brand-title p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.topbar-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin-left: auto;
}

.topbar-links a {
  display: inline-flex;
  align-items: center;
  line-height: 0;
  opacity: 0.85;
  transition: opacity 0.15s ease;
}

.topbar-links a:hover {
  opacity: 1;
}

.topbar-links img {
  height: 30px;
  width: auto;
  display: block;
}

.search-box {
  position: relative;
}

.search-box input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  font-size: 1rem;
  font-family: inherit;
  background: var(--panel);
  color: var(--ink);
}

.search-box input:focus {
  outline: 2px solid var(--heading-brown);
  outline-offset: 1px;
}

.search-status {
  margin-top: 6px;
  font-size: 0.85rem;
  color: var(--faint);
  min-height: 1.2em;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.chip {
  font: inherit;
  font-size: 0.85rem;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--panel);
  color: var(--muted);
  cursor: pointer;
}

.chip:hover {
  border-color: var(--heading-brown);
  color: var(--heading-brown);
}

.chip[aria-pressed="true"] {
  border-color: var(--heading-brown);
  background: var(--soft-red);
  color: var(--heading-brown);
  font-weight: 600;
}

.faq-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  align-items: start;
  gap: 12px;
  margin-top: 24px;
}

.faq-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  box-shadow: var(--card-shadow);
  overflow: hidden;
}

.faq-card[open] {
  grid-column: 1 / -1;
}

.faq-card summary {
  list-style: none;
  cursor: pointer;
  padding: 14px 40px 14px 16px;
  position: relative;
}

.faq-card summary::-webkit-details-marker {
  display: none;
}

.faq-card summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 14px;
  font-size: 1.1rem;
  color: var(--faint);
  transition: transform 0.15s ease;
}

.faq-card[open] summary::after {
  content: "\2212";
}

.faq-card__topic {
  display: block;
  font-weight: 600;
  font-size: 0.92rem;
  line-height: 1.3;
  color: var(--ink);
}

.faq-card__question {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 5;
  overflow: hidden;
  margin-top: 5px;
  font-weight: 400;
  font-size: 0.82rem;
  line-height: 1.4;
  color: var(--muted);
}

.faq-card[open] .faq-card__question {
  -webkit-line-clamp: unset;
  overflow: visible;
}

.faq-card__tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  min-height: 24px;
}

.tag-pill {
  display: inline-flex;
  align-items: center;
  line-height: 1;
  padding: 4px 9px;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 500;
  background: var(--tag-bg, var(--soft));
  color: var(--tag-text, var(--muted));
  white-space: nowrap;
}

.tag-pill--extra {
  display: none;
}

.faq-card__tags.is-expanded .tag-pill--extra {
  display: inline-flex;
}

.tag-pill--more {
  font: inherit;
  font-size: 0.62rem;
  line-height: 1;
  border: none;
  appearance: none;
  padding: 3px 6px;
  cursor: pointer;
  background: var(--soft);
  color: var(--faint);
}

.tag-pill--more svg {
  display: block;
}

.tag-pill--more:hover {
  color: var(--heading-brown);
}

.faq-card__body {
  padding: 0 18px 18px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.faq-card__body p {
  margin: 0 0 12px;
  color: var(--ink);
}

.faq-card__actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.faq-card__permalink {
  font: inherit;
  font-size: 0.85rem;
  border: none;
  background: none;
  padding: 0;
  color: var(--heading-brown);
  text-decoration: none;
  cursor: pointer;
}

.faq-card__permalink:hover {
  text-decoration: underline;
}

.copy-link-wrap {
  position: relative;
  display: inline-flex;
}

.copy-link-wrap--corner {
  margin-left: auto;
}

.faq-card[open] .copy-link-wrap--corner {
  display: none;
}

.copy-link-corner-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--panel);
  color: var(--muted);
  cursor: pointer;
}

.copy-link-corner-btn:hover {
  border-color: var(--heading-brown);
  color: var(--heading-brown);
}

.copy-link-tooltip {
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%) translateY(2px);
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--ink);
  color: #fff;
  font-size: 0.7rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.12s ease, transform 0.12s ease;
}

.copy-link-tooltip.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.copy-link-wrap--corner .copy-link-tooltip {
  left: auto;
  right: 0;
  transform: translateY(2px);
}

.copy-link-wrap--corner .copy-link-tooltip.is-visible {
  transform: translateY(0);
}

.faq-card--pulse {
  animation: faqCardPulse 2s cubic-bezier(0.22, 0.61, 0.36, 1) both;
}

@keyframes faqCardPulse {
  0% {
    transform: translateY(0);
    border-color: var(--line);
    box-shadow: 0 0 0 0 rgba(107, 63, 42, 0);
  }
  20% {
    transform: translateY(-3px);
    border-color: var(--heading-brown);
    box-shadow: 0 0 0 4px rgba(107, 63, 42, 0.16);
  }
  55% {
    transform: translateY(0);
    border-color: var(--heading-brown);
    box-shadow: 0 0 0 3px rgba(107, 63, 42, 0.12);
  }
  100% {
    transform: translateY(0);
    border-color: var(--line);
    box-shadow: 0 0 0 0 rgba(107, 63, 42, 0);
  }
}

.faq-count {
  margin-top: 24px;
  color: var(--faint);
  font-size: 0.85rem;
}

@media (max-width: 640px) {
  .page {
    padding: 20px 14px 60px;
  }

  .brand-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .topbar-links {
    margin-left: 0;
  }

  .topbar-links img {
    height: 22px;
  }

  .brand-logo {
    height: 36px;
  }

  .brand-title h1 {
    font-size: 1.25rem;
  }

  .faq-card summary {
    padding: 14px 40px 14px 14px;
  }

  .chip {
    font-size: 0.8rem;
    padding: 4px 10px;
  }
}