/* =========================================================
   nav.css — 网站导航页专属样式
   公共部分（变量 / 重置 / 顶栏 / 搜索框 / 按钮 / 页脚 / 入场）
   见 common.css，这里只放导航页独有的组件。
   ========================================================= */

/* ---------- 搜索建议下拉 ---------- */
.suggest {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  z-index: 80;
  max-height: min(420px, 62vh);
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 6px;
  animation: suggestIn .18s ease both;
}
@keyframes suggestIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: none; }
}

.suggest-item {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 9px 11px;
  border-radius: 11px;
  transition: background-color .15s;
}
.suggest-item:hover,
.suggest-item.is-active { background: var(--accent-soft); }

.suggest-icon {
  flex: none;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  font-size: 1rem;
  line-height: 1;
}
.suggest-main { min-width: 0; display: flex; align-items: baseline; gap: 8px; }
.suggest-name {
  font-size: .9rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.suggest-cat {
  flex: none;
  font-size: .72rem;
  color: var(--muted);
}

.suggest-empty {
  padding: 16px 12px;
  text-align: center;
  font-size: .86rem;
  color: var(--muted);
}

/* ---------- 图标：emoji 渐变块 / SVG 图片 ---------- */
.icon-box {
  overflow: hidden;
}
.icon-img {
  width: 100%;
  height: 100%;
  object-fit: contain;   /* 保持比例，图不会被拉伸 */
  padding: 10%;          /* 四周留白，图标不会贴边 */
  display: block;
}

/* ---------- 首页 Hero 与分类 chips ---------- */
.home-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(44px, 7vw, 84px) 0 clamp(24px, 3vw, 36px);
}
.home-hero::before {
  content: "";
  position: absolute;
  inset: -60% -10% auto;
  height: 170%;
  background: radial-gradient(42% 52% at 50% 45%, var(--accent-soft), transparent 70%);
  pointer-events: none;
}
.home-hero .container { position: relative; }

.eyebrow {
  display: inline-block;
  margin-bottom: 14px;
  padding: 5px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-size: .76rem;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--muted);
}

.home-hero h1 {
  font-size: clamp(1.7rem, 4.4vw, 2.7rem);
  line-height: 1.18;
  letter-spacing: -.035em;
  margin-bottom: 14px;
}

.home-hero .lead {
  max-width: 62ch;
  font-size: clamp(.95rem, 1.4vw, 1.04rem);
  color: var(--muted);
}

.cat-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 26px;
}
.cat-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: .85rem;
  font-weight: 600;
  transition: all .2s ease;
}
.cat-chip:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.cat-chip span {
  padding: 1px 7px;
  border-radius: 999px;
  background: var(--bg-alt);
  font-size: .72rem;
  font-weight: 700;
}

/* ---------- 分类区块 ---------- */
.cat-section { padding: clamp(26px, 3.4vw, 40px) 0; }

.cat-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}
.cat-section-head h2 {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  letter-spacing: -.02em;
}

.cat-head-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
}

.cat-count { font-size: .82rem; color: var(--muted); }

.cat-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  font-size: .82rem;
  font-weight: 600;
  white-space: nowrap;
  transition: border-color .2s, color .2s, transform .2s, background-color .2s;
}
.cat-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}
.cat-toggle .chev {
  font-size: .68rem;
  line-height: 1;
  transition: transform .3s ease;
}
.cat-toggle[aria-expanded="true"] .chev { transform: rotate(180deg); }

/* ---------- 网站卡片网格 ---------- */
.site-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  transition: max-height .45s cubic-bezier(.4, 0, .2, 1);
}
.site-grid.is-collapsed { overflow: hidden; }

.site-card {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  padding: 15px 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.site-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

.site-icon {
  flex: none;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  font-size: 1.3rem;
  line-height: 1;
  box-shadow: inset 0 0 0 1px rgb(255 255 255 / .16);
}

.site-body { min-width: 0; display: grid; gap: 3px; }

.site-name {
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: -.01em;
}
.site-desc {
  font-size: .82rem;
  line-height: 1.55;
  color: var(--muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---------- 搜索结果 / 空状态 ---------- */
.search-view { padding: clamp(28px, 4vw, 48px) 0 clamp(48px, 6vw, 76px); }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 20px;
  font-size: .86rem;
  font-weight: 600;
  color: var(--muted);
  transition: color .2s, gap .2s;
}
.back-link:hover { color: var(--accent); gap: 10px; }

.search-head { margin-bottom: 26px; }
.search-head h1 {
  font-size: clamp(1.4rem, 3.2vw, 2rem);
  letter-spacing: -.03em;
  margin-bottom: 6px;
}
.search-meta { font-size: .9rem; color: var(--muted); }
.search-meta strong { color: var(--accent); }

.result-list { display: grid; gap: 12px; }

.result-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 15px 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .5s ease,
              transform .5s cubic-bezier(.22, .61, .36, 1),
              border-color .2s ease,
              box-shadow .25s ease;
}
.result-row.is-in { opacity: 1; transform: none; }
.result-row:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

.result-icon {
  flex: none;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  font-size: 1.3rem;
  line-height: 1;
}

.result-body { min-width: 0; flex: 1; display: grid; gap: 3px; }

.result-top { display: flex; align-items: baseline; flex-wrap: wrap; gap: 8px; }
.result-name { font-size: 1rem; font-weight: 700; letter-spacing: -.01em; }
.result-cat {
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: .72rem;
  font-weight: 700;
}
.result-desc {
  font-size: .85rem;
  line-height: 1.6;
  color: var(--muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.result-arrow {
  flex: none;
  font-size: .95rem;
  color: var(--muted);
  transition: color .2s, transform .25s;
}
.result-row:hover .result-arrow {
  color: var(--accent);
  transform: translate(3px, -3px);
}

.empty-state {
  padding: clamp(48px, 9vw, 90px) 20px;
  text-align: center;
}
.empty-icon {
  font-size: 2.4rem;
  margin-bottom: 12px;
  opacity: .55;
}
.empty-state h3 { font-size: 1.1rem; margin-bottom: 6px; }
.empty-state p { font-size: .9rem; color: var(--muted); }

/* ---------- 网站详情 ---------- */
.detail-view { padding: clamp(28px, 4vw, 48px) 0 clamp(48px, 6vw, 76px); }

.detail-card {
  padding: clamp(24px, 4.5vw, 44px);
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.detail-head {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.detail-icon {
  flex: none;
  width: 72px;
  height: 72px;
  display: grid;
  place-items: center;
  border-radius: 20px;
  font-size: 2.1rem;
  line-height: 1;
  box-shadow: inset 0 0 0 1px rgb(255 255 255 / .18);
}

.detail-head h1 {
  font-size: clamp(1.5rem, 3.4vw, 2.05rem);
  letter-spacing: -.03em;
  line-height: 1.2;
  margin-bottom: 8px;
}

.tag-list { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  padding: 3px 11px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: .73rem;
  font-weight: 700;
}
.tag-soft { background: var(--bg-alt); color: var(--muted); }

.detail-desc {
  font-size: clamp(.94rem, 1.4vw, 1.02rem);
  line-height: 1.8;
  color: var(--muted);
  max-width: 68ch;
  margin-bottom: 26px;
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

/* ---------- 详情页补充：复制提示 / 地址 / 相关推荐 ---------- */
.copy-tip {
  font-size: .82rem;
  font-weight: 600;
  color: #059669;
  opacity: 0;
  transition: opacity .25s;
}
.copy-tip.is-show { opacity: 1; }

.detail-url {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 10px;
  background: var(--bg-alt);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .82rem;
  color: var(--muted);
  word-break: break-all;
}

.related { margin-top: clamp(32px, 5vw, 52px); }
.related h2 {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  letter-spacing: -.02em;
  margin-bottom: 16px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
  .cat-section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  .cat-head-right { width: 100%; justify-content: space-between; }
}

/* ---------- 响应式：小屏 ---------- */
@media (max-width: 560px) {
  .site-grid { grid-template-columns: 1fr; }
  .result-row { padding: 13px 14px; gap: 12px; }
  .result-icon { width: 40px; height: 40px; font-size: 1.1rem; }
  .detail-icon { width: 60px; height: 60px; font-size: 1.7rem; border-radius: 16px; }
}

/* ---------- 减少动画 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .result-row { opacity: 1; transform: none; }
  .site-grid { transition: none; }
}