/*
Theme Name: 中国客栈数字化档案局 TT4
Theme URI: https://kezhan.org.cn/
Description: 中国客栈数字化档案局的 Twenty Twenty-Four 生产子主题，面向档案、标准与公开资料检索。
Author: OpenLX
Version: 1.0.0
Requires at least: 6.4
Requires PHP: 7.4
Template: twentytwentyfour
Text Domain: kezhan-twentytwentyfour-production
*/

:root {
  --kezhan-brick: #8b493a;
  --kezhan-indigo: #29364a;
  --kezhan-gold: #c4a56a;
  --kezhan-paper: #f3ebdd;
  --kezhan-surface: #fffdf8;
  --kezhan-muted: #5d625f;
  --kezhan-line: rgba(41, 54, 74, 0.18);
  --kezhan-line-strong: rgba(41, 54, 74, 0.34);
  --kezhan-shadow: 0 18px 46px rgba(41, 54, 74, 0.09);
}

html {
  scroll-behavior: smooth;
}

body.kezhan-tt4 {
  background: var(--kezhan-paper);
  color: var(--kezhan-indigo);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  line-height: 1.75;
  margin: 0;
}

body.kezhan-tt4 :where(h1, h2, h3, h4, h5, h6) {
  color: var(--kezhan-indigo);
  font-family: "Source Han Serif SC", "Noto Serif SC", "Songti SC", serif;
  letter-spacing: -0.012em;
  line-height: 1.28;
}

body.kezhan-tt4 a {
  text-underline-offset: 0.18em;
}

.kezhan-header {
  background: rgba(255, 253, 248, 0.97);
  border-bottom: 1px solid var(--kezhan-line);
  position: relative;
  z-index: 30;
}

.kezhan-header-inner,
.kezhan-footer-inner,
.kezhan-template-wrap {
  margin-inline: auto;
  max-width: 1180px;
  width: min(100% - 40px, 1180px);
}

.kezhan-header-inner {
  min-height: 78px;
}

.kezhan-brand {
  min-width: min(330px, 38vw);
}

.kezhan-header .wp-block-site-title,
.kezhan-footer .wp-block-site-title {
  font-family: "Source Han Serif SC", "Noto Serif SC", "Songti SC", serif;
  font-size: clamp(1rem, 1.8vw, 1.28rem);
  font-weight: 700;
}

.kezhan-header a {
  color: var(--kezhan-indigo);
  text-decoration: none;
}

.kezhan-header .wp-block-navigation-item__content {
  font-size: 0.92rem;
  font-weight: 650;
  min-height: 44px;
  padding-inline: 6px;
}

.kezhan-header .wp-block-navigation-item__content:hover,
.kezhan-header .wp-block-navigation-item__content:focus-visible {
  color: var(--kezhan-brick);
}

.kezhan-header-search {
  flex: 0 1 190px;
  margin: 0;
}

.kezhan-header-search .wp-block-search__inside-wrapper,
.kezhan-search-panel .wp-block-search__inside-wrapper {
  background: var(--kezhan-surface);
  border: 1px solid var(--kezhan-line-strong);
  border-radius: 2px;
  min-height: 44px;
}

.kezhan-header-search .wp-block-search__input,
.kezhan-search-panel .wp-block-search__input {
  background: transparent;
  color: var(--kezhan-indigo);
}

.kezhan-header-search .wp-block-search__button,
.kezhan-search-panel .wp-block-search__button {
  background: var(--kezhan-indigo);
  border: 0;
  color: #fff;
}

.kezhan-main,
.kezhan-main .wp-block-post-content {
  margin-block-start: 0;
}

.kezhan-main .wp-block-post-content > :where(.openlx-home, .openlx-page, [class*="openlx-"]) {
  margin-left: calc(50% - 50vw) !important;
  margin-right: calc(50% - 50vw) !important;
  max-width: 100vw !important;
  width: 100vw !important;
}

.kezhan-main :where(.wp-block-post-content) {
  min-width: 0;
}

.kezhan-template-main {
  min-height: 54vh;
  padding-block: clamp(48px, 7vw, 88px);
}

.kezhan-template-heading {
  margin-bottom: clamp(28px, 4vw, 48px);
  max-width: 820px;
}

.kezhan-template-kicker,
.openlx-kicker {
  color: var(--kezhan-brick);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.kezhan-query .wp-block-post-template {
  gap: 20px;
}

.kezhan-result-card {
  background: var(--kezhan-surface);
  border: 1px solid var(--kezhan-line);
  box-shadow: var(--kezhan-shadow);
  height: 100%;
  padding: 22px;
}

.kezhan-result-card .wp-block-post-featured-image img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.kezhan-result-card .wp-block-post-title {
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  margin-block: 10px;
}

.kezhan-result-card .wp-block-post-title a {
  color: var(--kezhan-indigo);
  text-decoration: none;
}

.kezhan-result-card .wp-block-post-title a:hover,
.kezhan-result-card .wp-block-post-title a:focus-visible {
  color: var(--kezhan-brick);
}

.kezhan-result-card :where(.wp-block-post-date, .wp-block-post-terms) {
  color: var(--kezhan-muted);
  font-size: 0.8rem;
}

.kezhan-query .wp-block-query-pagination {
  border-top: 1px solid var(--kezhan-line);
  margin-top: 36px;
  padding-top: 24px;
}

.kezhan-single-head {
  border-bottom: 1px solid var(--kezhan-line);
  margin-bottom: 34px;
  padding-bottom: 28px;
}

.kezhan-single-head .wp-block-post-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  max-width: 900px;
}

.kezhan-single-content,
.kezhan-page-content {
  min-width: 0;
}

.kezhan-single-content :where(p, li) {
  font-size: clamp(1rem, 1.2vw, 1.08rem);
}

.kezhan-post-nav {
  border-top: 1px solid var(--kezhan-line);
  margin-top: 48px;
  padding-top: 24px;
}

.kezhan-error-panel {
  background: var(--kezhan-surface);
  border-left: 4px solid var(--kezhan-brick);
  box-shadow: var(--kezhan-shadow);
  max-width: 760px;
  padding: clamp(28px, 5vw, 56px);
}

.kezhan-footer {
  background: var(--kezhan-indigo);
  color: rgba(255, 255, 255, 0.78);
  margin-block-start: 0;
}

.kezhan-footer-inner {
  padding-block: 34px;
}

.kezhan-footer a,
.kezhan-footer .wp-block-site-title {
  color: #fff;
}

.kezhan-footer p {
  font-size: 0.88rem;
  margin: 0;
}

/* Existing archive-oriented page content. */
.openlx-home {
  background: var(--kezhan-paper);
  color: var(--kezhan-indigo);
}

.openlx-wrap {
  margin-inline: auto;
  max-width: 1180px;
  width: min(100% - 40px, 1180px);
}

.openlx-hero {
  background:
    linear-gradient(115deg, rgba(41, 54, 74, 0.98), rgba(41, 54, 74, 0.86)),
    repeating-linear-gradient(90deg, transparent 0 35px, rgba(196, 165, 106, 0.09) 35px 36px);
  color: rgba(255, 255, 255, 0.82);
  padding-block: clamp(70px, 10vw, 126px);
}

.openlx-hero-grid {
  align-items: center;
  display: grid;
  gap: clamp(32px, 6vw, 78px);
  grid-template-columns: minmax(0, 1.08fr) minmax(280px, 0.92fr);
}

.openlx-hero h1 {
  color: #fff;
  font-size: clamp(2.35rem, 5.5vw, 4.6rem);
  margin-block: 14px 20px;
  max-width: 820px;
}

.openlx-lead {
  font-size: clamp(1.05rem, 1.5vw, 1.22rem);
  max-width: 720px;
}

.openlx-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.openlx-btn {
  align-items: center;
  background: var(--kezhan-brick);
  border: 1px solid var(--kezhan-brick);
  border-radius: 2px;
  color: #fff;
  display: inline-flex;
  font-weight: 700;
  min-height: 46px;
  padding: 10px 18px;
  text-decoration: none;
}

.openlx-btn-secondary {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.65);
  color: #fff;
}

.openlx-doc-card,
.openlx-card,
.openlx-topic-card,
.openlx-step,
.openlx-faq-card {
  background: var(--kezhan-surface);
  border: 1px solid var(--kezhan-line);
  box-shadow: 0 10px 30px rgba(41, 54, 74, 0.05);
  padding: 22px;
}

.openlx-hero .openlx-doc-card {
  background: rgba(255, 253, 248, 0.96);
  color: var(--kezhan-indigo);
  transform: rotate(-0.6deg);
}

.openlx-list {
  margin: 0;
  padding-left: 1.2rem;
}

.openlx-list li + li {
  margin-top: 10px;
}

.openlx-trust-strip {
  background: var(--kezhan-brick);
  color: #fff;
}

.openlx-trust-strip .openlx-wrap {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
}

.openlx-trust-strip span {
  border-right: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 0.88rem;
  padding: 15px;
  text-align: center;
}

.openlx-band {
  padding-block: clamp(56px, 8vw, 92px);
}

.openlx-band:nth-of-type(even) {
  background: rgba(255, 253, 248, 0.56);
}

.openlx-section-head {
  max-width: 780px;
}

.openlx-section-head h2,
.openlx-cta h2 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  margin-block: 10px 14px;
}

.openlx-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 28px;
}

.openlx-flow {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 28px;
}

.openlx-step {
  border-top: 3px solid var(--kezhan-gold);
}

.openlx-faq-card summary {
  color: var(--kezhan-indigo);
  cursor: pointer;
  font-weight: 700;
  min-height: 44px;
}

.openlx-cta {
  background: var(--kezhan-indigo);
  color: rgba(255, 255, 255, 0.82);
  padding-block: clamp(58px, 8vw, 92px);
}

.openlx-cta h2 {
  color: #fff;
}

body.kezhan-tt4 :focus-visible {
  outline: 3px solid var(--kezhan-gold);
  outline-offset: 3px;
}

@media (max-width: 980px) {
  .kezhan-header-search {
    display: none;
  }

  .kezhan-brand {
    min-width: 0;
  }

  .openlx-hero-grid {
    grid-template-columns: 1fr;
  }

  .openlx-grid,
  .openlx-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 782px) {
  .kezhan-header-inner,
  .kezhan-footer-inner,
  .kezhan-template-wrap,
  .openlx-wrap {
    width: min(100% - 28px, 1180px);
  }

  .kezhan-header-inner {
    min-height: 68px;
  }

  .kezhan-header .wp-block-navigation__responsive-container.is-menu-open {
    background: var(--kezhan-surface);
    color: var(--kezhan-indigo);
    padding: 24px;
  }

  .kezhan-query .wp-block-post-template,
  .openlx-grid,
  .openlx-flow,
  .openlx-trust-strip .openlx-wrap {
    grid-template-columns: 1fr;
  }

  .openlx-trust-strip span {
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    border-right: 0;
  }

  .openlx-hero .openlx-doc-card {
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}