:root {
  --orange: #ff4d1c;
  --orange-soft: #fff1ed;
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --gray: #f5f5f7;
  --line: #e7e7ea;
  --white: #ffffff;
  --radius: 16px;
  --shadow: 0 18px 50px rgba(29, 29, 31, 0.07);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
a { color: inherit; }
img { max-width: 100%; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.nav-header {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 24px;
  min-height: 64px; padding: 10px max(20px, calc((100% - 1180px) / 2));
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.nav-brand {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--orange); font-size: 20px; font-weight: 800; text-decoration: none; white-space: nowrap;
}
.nav-main { display: flex; align-items: center; gap: 20px; margin-left: 8px; }
.nav-main a { color: var(--ink); font-size: 14px; text-decoration: none; white-space: nowrap; }
.nav-main a:hover { color: var(--orange); }
.nav-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.nav-community {
  padding: 8px 14px; border-radius: 999px; background: var(--orange-soft);
  color: var(--orange); font-size: 14px; font-weight: 600; text-decoration: none; white-space: nowrap;
}
.nav-community:hover { background: #ffe3d9; }

.nav-wrap { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.nav-hero { padding: 72px 0 44px; text-align: center; }
.nav-hero--small { padding-bottom: 26px; }
.nav-hero--fallback { padding: 110px 0 80px; }
.eyebrow { margin: 0 0 6px; color: var(--orange); font-size: 12px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; }
.nav-hero h1 { margin: 8px 0 10px; font-size: clamp(36px, 6vw, 66px); line-height: 1.06; letter-spacing: -0.03em; }
.nav-hero__subtitle { margin: 0; color: var(--muted); font-size: clamp(17px, 2.2vw, 20px); }
.nav-search {
  display: flex; gap: 6px; max-width: 700px; margin: 30px auto 0;
  padding: 6px; border: 1px solid var(--line); border-radius: 15px; background: var(--gray);
}
.nav-search input {
  flex: 1; min-width: 0; padding: 12px 15px; border: 0; border-radius: 10px;
  background: transparent; color: var(--ink); font-size: 16px; outline: none;
}
.nav-search input:focus { background: var(--white); box-shadow: 0 0 0 3px rgba(255, 77, 28, 0.12); }
.nav-search button, .button {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 42px; padding: 10px 18px; border: 1px solid transparent; border-radius: 10px;
  background: var(--white); color: var(--ink); font: inherit; font-size: 14px; text-decoration: none; cursor: pointer;
}
.nav-search button, .button.primary { background: var(--orange); color: var(--white); }
.nav-search button:hover, .button.primary:hover { background: #ff5a1f; }
.button { border-color: var(--line); }
.button:hover { border-color: #d8d8dc; }
.nav-search__hint { margin: 14px auto 0; color: var(--muted); font-size: 14px; }
.nav-search__hint a { color: var(--orange); }
.nav-hero__actions { display: flex; justify-content: center; align-items: center; gap: 10px; margin-top: 14px; flex-wrap: wrap; }

.nav-section { padding: 28px 0 8px; }
.section-title { display: flex; align-items: baseline; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.section-title h2, .nav-section h2 { margin: 0; font-size: 25px; letter-spacing: -0.02em; }
.section-title span { color: var(--muted); font-size: 14px; }
.view-toggle { margin-left: auto; display: inline-flex; padding: 3px; border: 1px solid var(--line); border-radius: 10px; background: var(--gray); }
.view-toggle button { padding: 5px 10px; border: 0; border-radius: 7px; background: transparent; color: var(--muted); font-size: 13px; cursor: pointer; }
.view-toggle button.is-active { background: var(--white); color: var(--ink); box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08); }

.category-links { display: flex; flex-wrap: wrap; gap: 10px; }
.category-links a {
  display: inline-flex; align-items: center; gap: 8px; padding: 9px 14px;
  border-radius: 999px; background: var(--gray); color: var(--ink); font-size: 14px; text-decoration: none;
}
.category-links a:hover { background: var(--orange-soft); color: var(--orange); }
.category-links small { color: var(--muted); font-size: 12px; }

.site-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.site-card {
  display: flex; flex-direction: column; min-width: 0; padding: 18px;
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--white);
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}
.site-card:hover { border-color: #d8d8dc; box-shadow: var(--shadow); transform: translateY(-1px); }
.site-card__head { display: flex; align-items: center; gap: 12px; min-width: 0; }
.site-card__head img, .site-icon {
  display: grid; place-items: center; flex: 0 0 44px; width: 44px; height: 44px;
  border-radius: 12px; background: var(--orange-soft); color: var(--orange);
  object-fit: cover; font-weight: 800;
}
.site-card__identity { min-width: 0; flex: 1; }
.site-card__identity h3 { margin: 0; font-size: 17px; line-height: 1.35; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.site-card__identity h3 a { color: var(--ink); text-decoration: none; }
.site-card__identity h3 a:hover { color: var(--orange); }
.site-card__identity p { margin: 2px 0 0; color: var(--muted); font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sponsor {
  margin-left: auto; padding: 3px 7px; border-radius: 6px;
  background: #fff7e6; color: #a15c00; font-size: 11px; font-weight: 600; white-space: nowrap;
}
.sponsor--large { padding: 5px 9px; font-size: 12px; }
.site-card__desc {
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
  margin: 14px 0 8px; color: var(--muted); font-size: 14px; line-height: 1.6;
}
.site-card__desc--muted { color: #9a9aa0; }
.site-card__reason {
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  margin: 0 0 8px; padding-left: 9px; border-left: 2px solid #ffd2c5; color: #8a5a4c; font-size: 12px;
}
.site-card__tags { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.site-card__tags a, .site-card__tags span { padding: 3px 8px; border-radius: 999px; background: var(--gray); color: var(--muted); font-size: 12px; text-decoration: none; }
.site-card__tags a { color: var(--orange); }
.site-card__clicks { background: var(--orange-soft) !important; color: var(--orange) !important; }
.site-card__actions { display: flex; align-items: center; justify-content: flex-end; gap: 12px; margin-top: 16px; }
.site-card__actions > a:first-child { color: var(--orange); font-size: 14px; text-decoration: none; }
.site-card__actions .button { min-height: 34px; padding: 6px 12px; font-size: 13px; }

/* 紧凑列表视图：同一份卡片标记，只切换布局。 */
.site-grid.site-grid--list { grid-template-columns: 1fr; gap: 8px; }
.site-grid--list .site-card { display: grid; grid-template-columns: minmax(220px, 0.9fr) minmax(0, 1.6fr) auto; align-items: center; gap: 18px; padding: 12px 16px; }
.site-grid--list .site-card__desc { margin: 0; -webkit-line-clamp: 2; }
.site-grid--list .site-card__reason { display: none; }
.site-grid--list .site-card__tags { display: none; }
.site-grid--list .site-card__actions { margin: 0; }

.empty { margin: 0; padding: 34px 0; color: var(--muted); text-align: center; }

.nav-about, .nav-submit, .nav-business {
  margin-top: 28px; padding: 26px; border: 1px solid var(--line); border-radius: 20px; background: var(--gray);
}
.nav-about p, .nav-business p { margin: 10px 0; color: var(--muted); }
.nav-about__links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.nav-submit__form { display: grid; gap: 14px; margin-top: 6px; }
.nav-submit__grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.field { display: grid; gap: 6px; min-width: 0; }
.field > span { color: var(--ink); font-size: 13px; font-weight: 600; }
.field input, .field select, .field textarea {
  width: 100%; min-width: 0; padding: 11px 12px; border: 1px solid var(--line);
  border-radius: 10px; background: var(--white); color: var(--ink); font: inherit; font-size: 14px;
}
.field textarea { resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid rgba(255, 77, 28, 0.18); border-color: var(--orange); }
.nav-honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.nav-submit__actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.form-hint { color: var(--muted); font-size: 12px; }
.nav-message { margin: 4px 0 0; font-size: 14px; color: #16794c; }
.nav-message.is-error { color: #c53131; }
.nav-business__contact a { color: var(--orange); }

.breadcrumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding-top: 26px; color: var(--muted); font-size: 13px; }
.breadcrumbs a { color: var(--muted); text-decoration: none; }
.breadcrumbs a:hover { color: var(--orange); }

.detail { max-width: 820px; margin: 22px auto 10px; padding: 32px; border: 1px solid var(--line); border-radius: 22px; }
.detail__identity { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.site-icon--large { flex-basis: 76px; width: 76px; height: 76px; border-radius: 20px; font-size: 28px; }
.detail h1 { margin: 2px 0 2px; font-size: clamp(28px, 4vw, 40px); line-height: 1.15; letter-spacing: -0.02em; }
.detail__domain { margin: 0; color: var(--muted); font-size: 14px; }
.detail__description { margin: 26px 0; color: var(--muted); font-size: 18px; line-height: 1.7; }
.detail section { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--line); }
.detail section h2 { font-size: 18px; }
.detail__facts { display: grid; gap: 10px; margin: 14px 0 0; }
.detail__facts > div { display: grid; grid-template-columns: 90px minmax(0, 1fr); gap: 12px; }
.detail__facts dt { color: var(--muted); font-size: 14px; }
.detail__facts dd { margin: 0; font-size: 14px; min-width: 0; word-break: break-word; }
.detail__facts a { color: var(--orange); text-decoration: none; }
.detail__actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.detail__actions .button.primary { min-height: 46px; padding: 11px 20px; font-size: 15px; }
.nav-detail__back { display: flex; gap: 10px; flex-wrap: wrap; }

.nav-footer { margin-top: 64px; border-top: 1px solid var(--line); background: #fbfbfd; }
.nav-footer__inner {
  display: grid; grid-template-columns: 1.6fr repeat(3, minmax(140px, 1fr)); gap: 28px;
  max-width: 1180px; margin: 0 auto; padding: 44px 24px 34px;
}
.nav-footer__brand p { margin: 10px 0 0; color: var(--muted); font-size: 14px; }
.nav-footer__note { font-size: 12px !important; }
.nav-footer strong { display: block; margin-bottom: 10px; font-size: 14px; }
.nav-footer a { display: block; margin: 6px 0; color: var(--muted); font-size: 13px; text-decoration: none; }
.nav-footer a:hover { color: var(--orange); }
.nav-footer .nav-brand { display: inline-flex; margin: 0; color: var(--orange); font-size: 18px; }
.nav-footer__bottom {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  max-width: 1180px; margin: 0 auto; padding: 18px 24px 26px;
  border-top: 1px solid var(--line); color: var(--muted); font-size: 12px;
}
.nav-footer__beian { color: inherit; text-decoration: none; }
.nav-footer__beian:hover { color: var(--ink); text-decoration: underline; }

@media (max-width: 980px) {
  .site-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .nav-main { gap: 14px; }
  .nav-main a:nth-child(4), .nav-main a:nth-child(5) { display: none; }
  .site-grid--list .site-card { grid-template-columns: 1fr; gap: 8px; }
  .site-grid--list .site-card__desc { display: none; }
  .site-grid--list .site-card__actions { justify-content: flex-start; }
}

@media (max-width: 700px) {
  .nav-header { flex-wrap: wrap; gap: 8px 12px; padding: 10px 16px; }
  .nav-main {
    display: flex; order: 3; width: 100%; gap: 16px;
    overflow-x: auto; padding: 2px 0 4px; scrollbar-width: none;
  }
  .nav-main::-webkit-scrollbar { display: none; }
  .nav-main a:nth-child(4), .nav-main a:nth-child(5) { display: inline; }
  .nav-actions { margin-left: auto; }
  .nav-community { padding: 7px 11px; font-size: 13px; }
  .nav-wrap { padding: 0 16px; }
  .nav-hero { padding: 46px 0 30px; }
  .nav-hero--fallback { padding: 70px 0 50px; }
  .nav-search { margin-top: 22px; }
  .nav-search button { padding: 10px 14px; }
  .site-grid { grid-template-columns: 1fr; }
  .section-title h2 { font-size: 21px; }
  .view-toggle { margin-left: 0; }
  .nav-submit__grid { grid-template-columns: 1fr; }
  .nav-about, .nav-submit, .nav-business { padding: 20px; }
  .detail { padding: 22px 18px; margin-top: 14px; }
  .detail__identity { gap: 14px; }
  .detail__facts > div { grid-template-columns: 70px minmax(0, 1fr); }
  .nav-footer__inner { grid-template-columns: 1fr 1fr; padding: 34px 16px 24px; }
  .nav-footer__brand { grid-column: 1 / -1; }
  .nav-footer__bottom { padding: 16px 16px 24px; }
}