/*
Theme Name: Yueshi Code
Theme URI: https://www.yueshi-edu.com/
Author: Codex
Description: Code-maintained WordPress content layer for yueshi-edu.com.
Version: 1.0.2
Text Domain: yueshi-code
*/

:root {
  --ys-blue: #04407d;
  --ys-blue-2: #0091ff;
  --ys-blue-3: #eaf6ff;
  --ys-gold: #f3b64a;
  --ys-text: #222;
  --ys-muted: #666;
  --ys-soft: #f7f9fc;
  --ys-line: #e6edf5;
  --ys-card: #fff;
  --ys-radius: 6px;
  --ys-wrap: 1200px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #fff;
  color: var(--ys-text);
  font-size: 14px;
  font-family: "Microsoft Yahei", "PingFang SC", Arial, sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  color: var(--ys-blue);
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
}

.ys-topbar {
  height: 35px;
  border-bottom: 1px solid #f0f0f0;
  background: #fcfcfc;
  color: #666;
}

.ys-wrap {
  width: min(var(--ys-wrap), calc(100% - 32px));
  margin-inline: auto;
}

.ys-topbar .ys-wrap,
.ys-header__inner,
.ys-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ys-topbar a {
  display: inline-flex;
  align-items: center;
  height: 35px;
  padding-right: 22px;
  color: #666;
}

.ys-header {
  background: #fff;
  border-bottom: 1px solid var(--ys-line);
}

.ys-header__inner {
  min-height: 82px;
  gap: 28px;
}

.ys-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 190px;
}

.ys-logo__mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--ys-blue), var(--ys-blue-2));
  color: #fff;
  font-size: 24px;
  font-weight: 700;
}

.ys-logo__text {
  display: grid;
  gap: 3px;
}

.ys-logo__name {
  color: var(--ys-blue);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0;
}

.ys-logo__sub {
  color: #888;
  font-size: 12px;
}

.ys-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ys-nav li {
  list-style: none;
}

.ys-nav a {
  display: inline-flex;
  align-items: center;
  height: 42px;
  padding: 0 14px;
  color: #333;
  font-size: 15px;
}

.ys-nav a:hover,
.ys-nav .current-menu-item > a,
.ys-nav .current-cat > a {
  background: var(--ys-blue-3);
  color: var(--ys-blue);
}

.ys-consult {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 132px;
  height: 40px;
  border-radius: var(--ys-radius);
  background: linear-gradient(90deg, #04599f, #0091ff);
  box-shadow: 0 8px 18px rgba(0, 145, 255, 0.2);
  color: #fff;
  font-weight: 700;
}

.ys-consult:hover {
  color: #fff;
  filter: brightness(0.96);
}

.ys-band {
  background: linear-gradient(90deg, var(--ys-blue), #0575d8);
  color: #fff;
}

.ys-band__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  gap: 20px;
}

.ys-breadcrumb {
  padding: 18px 0 0;
  color: #777;
  font-size: 13px;
}

.ys-breadcrumb a {
  color: #777;
}

.ys-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 28px;
  padding: 24px 0 44px;
}

.ys-main,
.ys-side-card,
.ys-list-card {
  border: 1px solid var(--ys-line);
  border-radius: var(--ys-radius);
  background: var(--ys-card);
}

.ys-main {
  min-width: 0;
}

.ys-article {
  padding: 34px 42px 44px;
}

.ys-kicker {
  margin: 0 0 12px;
  color: var(--ys-blue-2);
  font-weight: 700;
}

.ys-title {
  margin: 0;
  color: #1f2933;
  font-size: 30px;
  line-height: 1.35;
  letter-spacing: 0;
}

.ys-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin: 16px 0 26px;
  color: #888;
  font-size: 13px;
}

.ys-meta a {
  color: var(--ys-blue);
}

.ys-summary {
  margin: -8px 0 24px;
  padding: 18px 20px;
  border-left: 4px solid var(--ys-gold);
  background: #fff9ec;
  color: #3f4650;
  font-size: 15px;
  line-height: 1.8;
}

.ys-route-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin: 28px 0;
  padding: 22px 24px;
  border: 1px solid #bfddf7;
  border-radius: var(--ys-radius);
  background: linear-gradient(90deg, #eef8ff, #fff);
}

.ys-route-box div {
  display: grid;
  gap: 6px;
}

.ys-route-box strong {
  color: var(--ys-blue);
  font-size: 17px;
}

.ys-route-box span {
  color: var(--ys-muted);
  line-height: 1.65;
}

.ys-route-box a,
.ys-cta a,
.ys-side-consult a,
.ys-readmore {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 18px;
  border-radius: var(--ys-radius);
  background: linear-gradient(90deg, var(--ys-blue), #0575d8);
  box-shadow: 0 8px 16px rgba(4, 64, 125, 0.12);
  color: #fff;
  font-weight: 700;
  white-space: nowrap;
}

.ys-route-box a:hover,
.ys-cta a:hover,
.ys-side-consult a:hover,
.ys-readmore:hover {
  color: #fff;
  filter: brightness(0.95);
}

.ys-content {
  color: #333;
  font-size: 16px;
  line-height: 1.9;
}

.ys-content h2 {
  margin: 34px 0 14px;
  padding-left: 12px;
  border-left: 4px solid var(--ys-blue-2);
  color: #1f2933;
  font-size: 22px;
  line-height: 1.35;
}

.ys-content h3 {
  margin: 26px 0 12px;
  color: #1f2933;
  font-size: 18px;
}

.ys-content p,
.ys-content ul,
.ys-content ol {
  margin: 0 0 18px;
}

.ys-content ul,
.ys-content ol {
  padding-left: 24px;
}

.ys-content li {
  margin-bottom: 8px;
}

.ys-content a {
  color: var(--ys-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.ys-cta {
  margin: 28px 0;
  padding: 22px 24px;
  border: 1px solid #bcdaf4;
  border-radius: var(--ys-radius);
  background: linear-gradient(135deg, #edf8ff, #fff9ec);
}

.ys-cta p {
  margin: 0 0 14px;
  color: #3f4650;
  line-height: 1.75;
}

.ys-cta h2,
.ys-cta h3 {
  margin: 0 0 10px;
  padding: 0;
  border: none;
  font-size: 19px;
}

.ys-related {
  margin-top: 36px;
  padding-top: 26px;
  border-top: 1px solid var(--ys-line);
}

.ys-related h2 {
  margin: 0 0 16px;
  color: #1f2933;
  font-size: 20px;
}

.ys-related-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.ys-related-grid a {
  display: grid;
  gap: 8px;
  min-height: 96px;
  padding: 16px;
  border: 1px solid var(--ys-line);
  border-radius: var(--ys-radius);
  background: #fff;
}

.ys-related-grid a:hover {
  border-color: #b9d8f4;
  background: #f8fcff;
}

.ys-related-grid strong {
  line-height: 1.55;
}

.ys-related-grid span {
  color: #888;
  font-size: 13px;
}

.ys-side {
  display: grid;
  align-content: start;
  gap: 16px;
}

.ys-side-card {
  padding: 20px;
}

.ys-side-card h2 {
  margin: 0 0 14px;
  color: var(--ys-blue);
  font-size: 18px;
}

.ys-side-consult {
  border-color: #cde6ff;
  background: linear-gradient(180deg, #eef8ff, #fff);
}

.ys-side-consult p {
  margin: 0 0 8px;
  color: var(--ys-blue-2);
  font-weight: 700;
}

.ys-side-consult h2 {
  margin-bottom: 12px;
  color: #12385f;
}

.ys-side-consult a {
  width: 100%;
  margin-top: 6px;
}

.ys-side-card ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ys-side-card li {
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--ys-line);
  line-height: 1.55;
}

.ys-side-card li:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.ys-side-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ys-side-tags a,
.ys-topic-chips a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border: 1px solid var(--ys-line);
  border-radius: 999px;
  background: #fff;
  color: #3f4650;
  font-size: 13px;
}

.ys-side-tags a:hover,
.ys-topic-chips a:hover {
  border-color: #b9d8f4;
  background: var(--ys-blue-3);
  color: var(--ys-blue);
}

.ys-archive-head {
  padding: 30px 34px;
  border-bottom: 1px solid var(--ys-line);
}

.ys-archive-head p {
  max-width: 760px;
  margin: 12px 0 0;
  color: var(--ys-muted);
  font-size: 15px;
  line-height: 1.75;
}

.ys-archive-desc {
  max-width: 760px;
  margin-top: 12px;
  color: var(--ys-muted);
  font-size: 15px;
  line-height: 1.75;
}

.ys-archive-desc p {
  margin: 0;
}

.ys-archive-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.ys-archive-stats span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 11px;
  border: 1px solid #d6e9fb;
  border-radius: 999px;
  background: #f5fbff;
  color: var(--ys-blue);
  font-size: 13px;
  font-weight: 700;
}

.ys-topic-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.ys-hub-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px 18px;
  align-items: center;
  margin-top: 22px;
  padding: 18px 20px;
  border: 1px solid #cfe4f7;
  border-radius: var(--ys-radius);
  background: linear-gradient(135deg, #f2f9ff, #fff);
}

.ys-hub-panel p {
  grid-column: 1 / -1;
  max-width: 880px;
  margin: 0;
  color: #34495e;
  font-size: 15px;
  line-height: 1.8;
}

.ys-hub-related {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.ys-hub-related span {
  color: var(--ys-blue);
  font-weight: 700;
}

.ys-hub-related a {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 11px;
  border: 1px solid #d6e9fb;
  border-radius: 999px;
  background: #fff;
  color: #3f4650;
  font-size: 13px;
}

.ys-hub-related a:hover {
  border-color: #b9d8f4;
  background: var(--ys-blue-3);
  color: var(--ys-blue);
}

.ys-hub-panel__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 18px;
  border-radius: var(--ys-radius);
  background: linear-gradient(90deg, var(--ys-blue), #0575d8);
  box-shadow: 0 8px 16px rgba(4, 64, 125, 0.12);
  color: #fff;
  font-weight: 700;
  white-space: nowrap;
}

.ys-hub-panel__cta:hover {
  color: #fff;
  filter: brightness(0.95);
}

.ys-list {
  display: grid;
  gap: 0;
}

.ys-list-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 30px;
  border-width: 0 0 1px;
  border-radius: 0;
}

.ys-list-card:last-child {
  border-bottom: none;
}

.ys-list-card h2 {
  margin: 0;
  font-size: 21px;
  line-height: 1.4;
}

.ys-list-card .ys-kicker {
  margin-bottom: 8px;
  font-size: 13px;
}

.ys-list-card p {
  margin: 0;
  color: var(--ys-muted);
  font-size: 14px;
  line-height: 1.8;
}

.ys-empty {
  padding: 36px;
  color: var(--ys-muted);
}

.ys-empty h2 {
  margin: 0 0 10px;
  color: #1f2933;
  font-size: 22px;
}

.ys-empty p {
  margin: 0;
  line-height: 1.75;
}

.ys-pagination {
  padding: 24px 30px 32px;
}

.ys-pagination .nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ys-pagination a,
.ys-pagination span {
  display: inline-flex;
  min-width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  border: 1px solid var(--ys-line);
  border-radius: 4px;
}

.ys-pagination .current {
  background: var(--ys-blue);
  color: #fff;
}

.ys-footer {
  margin-top: 28px;
  border-top: 1px solid var(--ys-line);
  background: #f8fafc;
  color: #666;
}

.ys-footer__inner {
  min-height: 92px;
  gap: 24px;
}

.ys-footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

@media (max-width: 980px) {
  body {
    padding-bottom: 76px;
  }

  .ys-topbar {
    height: auto;
  }

  .ys-topbar .ys-wrap,
  .ys-header__inner,
  .ys-band__inner,
  .ys-footer__inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 12px 0;
  }

  .ys-nav {
    justify-content: flex-start;
  }

  .ys-layout {
    grid-template-columns: 1fr;
  }

  .ys-route-box,
  .ys-list-card {
    align-items: flex-start;
    flex-direction: column;
  }

  .ys-related-grid {
    grid-template-columns: 1fr;
  }

  .ys-hub-panel {
    grid-template-columns: 1fr;
  }

  .ys-article,
  .ys-archive-head,
  .ys-list-card {
    padding-inline: 22px;
  }
}