/* ===== Scholarly Precision — Academic Publishing ===== */
@import url('https://fonts.googleapis.com/css2?family=Hanken+Grotesk:wght@400;500;600;700&family=Source+Serif+4:opsz,wght@8..60,400;600&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@24,400,0,0&display=swap');

:root {
  --academic-red: #A31E22;
  --primary: #80000f;
  --oxford-navy: #1B2631;
  --slate-grey: #4A5568;
  --paper-white: #FFFFFF;
  --background: #f8f9fa;
  --surface-container-low: #f3f4f5;
  --surface-container-high: #e7e8e9;
  --surface-variant: #e1e3e4;
  --outline-variant: #e1bebb;
  --on-surface: #191c1d;
  --ink-black: #121212;
  --error: #ba1a1a;
  --link: var(--academic-red);
  --max-width: 1280px;
  --header-h: 72px;
  --radius: 4px;
  --radius-lg: 5px;
  --shadow-ambient: 0 4px 20px rgba(0, 0, 0, 0.05);
  --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.08);
  --font-ui: 'Hanken Grotesk', system-ui, sans-serif;
  --font-serif: 'Source Serif 4', Georgia, serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.625;
  color: var(--on-surface);
  background: var(--paper-white);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--academic-red); }

.material-symbols-outlined {
  font-family: 'Material Symbols Outlined';
  font-weight: normal;
  font-style: normal;
  font-size: 22px;
  line-height: 1;
  vertical-align: middle;
}

.center { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 16px; }
@media (min-width: 768px) { .center { padding: 0 40px; } }

.link-style { color: var(--academic-red); text-decoration: underline; cursor: pointer; font-family: var(--font-ui); }

/* Loading — 图标旋转 + 文字呼吸 */
.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 48px 24px;
  min-height: 140px;
  width: 100%;
  text-align: center;
}
.loading.center { min-height: 280px; }
.journal-grid > .loading,
.article-grid > .loading,
.journal-grid--list > .loading {
  grid-column: 1 / -1;
}
.loading-spinner {
  font-size: 36px;
  line-height: 1;
  color: var(--academic-red);
  animation: loading-spin 1s linear infinite;
}
.loading-label {
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 500;
  color: var(--slate-grey);
  letter-spacing: 0.06em;
  animation: loading-pulse 1.4s ease-in-out infinite;
}
.loading--compact {
  flex-direction: row;
  justify-content: flex-start;
  align-items: center;
  gap: 10px;
  min-height: 0;
  padding: 8px 0;
  width: auto;
}
.loading--compact .loading-spinner { font-size: 22px; }
.loading--compact .loading-label { font-size: 12px; }
.sidebar-news { display: block; }
.sidebar-news-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}
@keyframes loading-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
@keyframes loading-pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

.error-msg { text-align: center; color: var(--error); font-family: var(--font-ui); }

h1, h2, h3, .font-ui { font-family: var(--font-ui); color: var(--oxford-navy); }
h1 { font-size: 32px; font-weight: 700; line-height: 1.25; margin-bottom: 24px; letter-spacing: -0.02em; }
h2 { font-size: 24px; font-weight: 600; margin: 24px 0 12px; }
.text-muted { color: var(--slate-grey); font-size: 14px; font-family: var(--font-ui); }

.chip {
  display: inline-block;
  background: var(--surface-container-high);
  color: var(--oxford-navy);
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 500;
  padding: 4px 8px;
  border-radius: var(--radius);
  white-space: nowrap;
  flex-shrink: 0;
  line-height: 1.3;
}
.chip--oa {
  background: var(--academic-red);
  color: var(--paper-white);
  font-weight: 500;
}
.chip--journal {
  background: rgba(163, 30, 34, 0.1);
  color: var(--academic-red);
  border: 1px solid rgba(163, 30, 34, 0.18);
  font-weight: 600;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
}
.hover-lift { transition: box-shadow 0.3s, transform 0.3s; }
.hover-lift:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }

/* ===== Header ===== */
#header {
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
}
.site-header {
  width: 100%;
  background: var(--paper-white);
  border-bottom: 1px solid var(--outline-variant);
  box-shadow: var(--shadow-ambient);
}
.header-inner {
  max-width: var(--max-width); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 16px; min-height: var(--header-h); gap: 16px;
}
@media (min-width: 768px) { .header-inner { padding: 16px 16px; } }

.brand {
  display: flex; align-items: center; gap: 12px; flex-shrink: 0;
}
.brand img, .logo img { height: 40px; width: auto; }
.brand-text {
  font-family: var(--font-ui);
  font-size: 20px; font-weight: 700;
  color: var(--academic-red);
  display: none;
}
@media (min-width: 640px) { .brand-text { display: block; } }

.main-nav { flex: 1; display: none; justify-content: center; }
@media (min-width: 1100px) { .main-nav { display: flex; } }

.nav-tabs { display: flex; gap: 24px; list-style: none; align-items: center; }
.nav-tabs a {
  font-family: var(--font-ui);
  font-size: 13px; font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--oxford-navy);
  padding: 8px 0;
  white-space: nowrap;
}
.nav-tabs li.active a {
  color: var(--academic-red);
  border-bottom: 2px solid var(--academic-red);
  padding-bottom: 6px;
}
.nav-tabs a:hover { color: var(--academic-red); }

.header-right { display: flex; align-items: center; gap: 8px; }
.header-icon-btn {
  display: flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  color: var(--oxford-navy); border-radius: var(--radius);
}
.header-icon-btn:hover { color: var(--academic-red); background: var(--surface-container-low); }

.user-link {
  font-family: var(--font-ui);
  font-size: 12px; font-weight: 600;
  color: var(--oxford-navy); padding: 4px 8px;
}
.user-link:hover { color: var(--academic-red); }
.btn-register {
  display: none;
  font-family: var(--font-ui);
  font-size: 13px; font-weight: 600;
  background: var(--academic-red); color: var(--paper-white);
  padding: 8px 16px; border-radius: var(--radius);
}
.btn-register:hover { background: var(--primary); color: #fff; }
@media (min-width: 900px) { .btn-register { display: inline-block; } }

.user-menu-wrap { position: relative; }
.user-menu-btn {
  font-family: var(--font-ui);
  background: none; border: none; cursor: pointer;
  font-size: 13px; font-weight: 600;
  color: var(--oxford-navy); padding: 8px 12px;
  border-radius: var(--radius);
}
.user-menu-btn:hover { background: var(--surface-container-low); color: var(--academic-red); }
.user-menu {
  display: none; position: absolute; right: 0; top: calc(100% + 4px);
  background: var(--paper-white);
  border: 1px solid var(--surface-variant);
  border-radius: var(--radius-lg);
  min-width: 180px; z-index: 1001;
  box-shadow: var(--shadow-hover); overflow: hidden;
}
.user-menu.open { display: block; }
.user-menu a {
  display: block; padding: 12px 16px;
  font-family: var(--font-ui); font-size: 13px;
  border-bottom: 1px solid var(--surface-container-low);
}
.user-menu a:hover { background: var(--surface-container-low); color: var(--academic-red); }

.nav-toggle {
  display: flex; flex-direction: column; justify-content: center; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 8px;
}
@media (min-width: 1100px) { .nav-toggle { display: none; } }
.nav-toggle span { display: block; }
.nav-toggle .material-symbols-outlined { font-size: 24px; color: var(--oxford-navy); }

.mobile-nav {
  display: none; background: var(--paper-white);
  border-top: 1px solid var(--surface-variant);
  box-shadow: var(--shadow-ambient);
}
.mobile-nav.open { display: block; }
.mobile-nav ul { list-style: none; }
.mobile-nav a {
  display: block; padding: 14px 24px;
  font-family: var(--font-ui); font-weight: 600;
  border-bottom: 1px solid var(--surface-container-low);
  color: var(--oxford-navy);
}
.mobile-nav a:hover { color: var(--academic-red); background: var(--surface-container-low); }

/* ===== Footer ===== */
.site-footer {
  background: var(--surface-container-low);
  color: var(--on-surface);
  padding: 56px 24px 32px;
  margin-top: auto;
  text-align: left;
  border-top: 1px solid var(--surface-variant);
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px 40px;
  padding-bottom: 40px;
}
@media (min-width: 640px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px 48px; }
}
.footer-col--brand { max-width: 320px; }
.footer-brand {
  font-family: var(--font-serif);
  font-size: clamp(22px, 2.5vw, 28px);
  font-weight: 600;
  color: var(--oxford-navy);
  margin-bottom: 16px;
  line-height: 1.25;
}
.footer-tagline {
  font-family: var(--font-ui);
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate-grey);
  margin: 0;
}
.footer-col-title {
  font-family: var(--font-ui);
  font-size: 15px;
  font-weight: 700;
  color: var(--oxford-navy);
  margin-bottom: 16px;
}
.footer-col-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col-links a {
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 400;
  color: var(--slate-grey);
  transition: color 0.2s;
}
.footer-col-links a:hover { color: var(--academic-red); }
.footer-copy {
  font-family: var(--font-ui);
  font-size: 13px;
  color: var(--slate-grey);
  text-align: center;
  padding-top: 28px;
  border-top: 1px solid var(--surface-variant);
}

.to-top {
  display: none; position: fixed; right: 24px; bottom: 24px;
  width: 48px; height: 48px;
  background: var(--academic-red);
  color: var(--paper-white);
  border: none; border-radius: 50%;
  box-shadow: var(--shadow-ambient);
  cursor: pointer; z-index: 500;
  align-items: center; justify-content: center;
}
.to-top.visible { display: flex; }
.to-top:hover { background: var(--surface-variant);color: var(--oxford-navy); }

/* ===== Main layout ===== */
.site-main {
  flex: 1;
  width: 100%; max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 12px 48px;
}
.site-main--fluid {
  max-width: var(--max-width);
  width: 100%;
  padding: 24px 12px 48px;
}
@media (min-width: 768px) {
  .site-main { padding: 32px 16px 64px; }
  .site-main--fluid { padding: 32px 16px 64px; }
}

.page-with-sidebar {
  display: flex; flex-direction: column; gap: 24px;
}
@media (min-width: 768px) {
  .page-with-sidebar { flex-direction: row; align-items: flex-start; }
}

.sidebar { width: 100%; flex-shrink: 0; }
@media (min-width: 768px) { .sidebar { width: 256px; position: sticky; top: calc(var(--header-h) + 16px); } }

.sidebar-panel {
  background: var(--surface-container-low);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin-bottom: 16px;
}
.sidebar-block {
  background: var(--surface-container-low);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin-bottom: 16px;
}
.sidebar-title {
  font-family: var(--font-ui);
  font-size: 16px; font-weight: 700;
  color: var(--oxford-navy);
  margin-bottom: 12px;
}
.sidebar-subtitle {
  font-family: var(--font-ui);
  font-size: 12px; color: var(--slate-grey);
  margin-bottom: 12px;
}
.sidebar-link {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 12px; margin: 2px 0;
  font-family: var(--font-ui);
  font-size: 13px; font-weight: 500;
  color: var(--slate-grey);
  border-radius: var(--radius-lg);
  transition: background 0.2s;
}
.sidebar-title--nowrap {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sidebar-link:hover, .sidebar-link.active {
  background: var(--surface-container-high);
  color: var(--academic-red);
}
.sidebar-link.active { font-weight: 600; }

.letter-filter { display: flex; flex-wrap: wrap; gap: 4px; list-style: none; }
.letter-filter li {
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-ui);
  font-size: 12px; font-weight: 500;
  border: 1px solid var(--slate-grey);
  background: var(--paper-white);
  cursor: pointer; border-radius: var(--radius);
  transition: all 0.2s;
}
.letter-filter li:hover, .letter-filter li.active {
  background: var(--academic-red); color: #fff; border-color: var(--academic-red);
}

.sidebar-news-item {
  margin-bottom: 12px; padding-bottom: 12px;
  border-bottom: 1px solid var(--surface-variant);
  font-family: var(--font-ui); font-size: 13px;text-align: left;
}
.sidebar-news-item a { color: var(--oxford-navy); font-weight: 500; }
.sidebar-news-item a:hover { color: var(--academic-red); }
.news-date { font-size: 12px; color: var(--slate-grey); margin-top: 4px; }

.main-content {
  flex: 1; min-width: 0;
  background: var(--paper-white);
  /* border-radius: var(--radius-lg); */
  padding: 24px;
  /* box-shadow: var(--shadow-ambient); */
  /* border: 1px solid var(--surface-variant); */
}
@media (min-width: 768px) { .main-content { padding: 0px 40px; } }

.page-header {
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--academic-red);
}
.page-header h1 { margin-bottom: 8px; }
.page-header p { color: var(--slate-grey); font-family: var(--font-ui); }

/* ===== Home ===== */
.home-hero--full {
  width: 100%;
  margin: 0;
  border-radius: 0;
  background: transparent;
  border-bottom: 1px solid var(--surface-variant);
  padding: 30px 24px;
  text-align: left;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  min-height: clamp(280px, 36vw, 420px);
}
@media (min-width: 768px) {
  .home-hero--full {
    padding: 56px 40px 64px;
    min-height: 380px;
  }
}
.home-hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.home-hero--full .home-hero-inner {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.home-body {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 12px 40px;
  box-sizing: border-box;
  overflow-x: clip;
}
@media (min-width: 768px) { .home-body { padding: 32px 16px 48px; } }

.home-page { max-width: var(--max-width); margin: 0 auto; padding: 0 16px 64px; }
@media (min-width: 768px) { .home-page { padding: 0 40px 64px; } }

.home-hero {
  background: transparent;
  border-radius: var(--radius-lg);
  padding: 50px 24px;
  text-align: center;
  margin-bottom: 64px;
  position: relative;
  overflow: hidden;
}
.home-hero--full::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: url("/img/banner.png") center right / cover no-repeat;
}
.home-hero--full h1 {
  font-size: clamp(32px, 4.5vw, 48px);
  margin-bottom: 0;
  color: var(--oxford-navy);
  text-align: left;
  max-width: min(520px, 100%);
}
.home-hero--full h1::after {
  content: '';
  display: block;
  width: 56px;
  height: 3px;
  margin: 14px 0 18px;
  background: #c4a35a;
}
.home-hero--full .hero-desc {
  font-family: var(--font-ui);
  font-size: clamp(14px, 1.6vw, 16px);
  line-height: 1.7;
  color: var(--slate-grey);
  max-width: min(480px, 100%);
  margin: 0 0 28px;
  text-align: left;
}
.home-hero--full .search-box {
  max-width: min(560px, 100%);
  margin: 0;
  width: 100%;
}
.home-hero--full .search-tabs {
  justify-content: flex-start;
}
@media (min-width: 768px) { .home-hero { padding: 100px 48px; } }
.home-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: url("/img/banner.png") center / cover no-repeat;
}
.home-hero h1 {
  font-size: clamp(32px, 5vw, 48px);
  position: relative; z-index: 1;
}
.home-hero .hero-desc {
  font-family: var(--font-serif);
  font-size: 18px; color: var(--slate-grey);
  max-width: 640px; 
  position: relative; z-index: 1;
}
.home-banner {
  background: var(--surface-container-low);
  border-radius: var(--radius-lg);
  padding: 48px 24px; margin: 32px 0 64px;
  position: relative; min-height: auto; height: auto;
  box-shadow: none;
}
.search-box { position: relative; max-width: 720px; margin: 0 auto; z-index: 1; width: 100%; transform: none; top: auto; left: auto; }
.banner-text { display: none; }

.search-tabs { display: flex; gap: 8px; margin-bottom: 8px; justify-content: center; flex-wrap: wrap; }
.search-tabs label {
  font-family: var(--font-ui);
  font-size: 12px; font-weight: 500;
  padding: 8px 20px;
  background: var(--paper-white);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  cursor: pointer; transition: all 0.2s;
}
.search-tabs input { display: none; }
.search-tabs input:checked + label {
  background: var(--academic-red); color: #fff; border-color: var(--academic-red);
}
.search-input { display: flex; }
.search-input input {
  flex: 1; padding: 12px 16px;
  border: 1px solid var(--outline-variant);
  border-right: none; border-radius: var(--radius) 0 0 var(--radius);
  font-family: var(--font-serif); font-size: 16px;
  outline: none;
}
.search-input input:focus { box-shadow: inset 0 0 0 2px var(--academic-red); }
.search-input button {
  padding: 12px 20px;
  background: var(--surface-container);
  border: 1px solid var(--outline-variant);
  border-radius: 0 var(--radius) var(--radius) 0;
  cursor: pointer; color: var(--oxford-navy);
}
.search-input button:hover { background: var(--surface-variant); }

.section-block {
  background: var(--surface-container-low);
  border-radius: var(--radius-lg);
  padding: 24px 16px;
  margin-bottom: 32px;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}
.section-block--plain,
.section-block--home-articles {
  background: transparent;
  padding: 0;
  margin-bottom: 0;
  margin-top: 8px;
  padding-top: 28px;
  /* border-top: 1px solid var(--surface-variant); */
}
.section-block--home-journals {
  padding: 20px 16px;
  margin-bottom: 28px;
}
@media (min-width: 768px) {
  .section-block { padding: 28px 24px; }
  .section-block--home-journals { padding: 24px 28px; }
}
.section-title {
  font-family: var(--font-ui);
  font-size: 28px;
  font-weight: 700;
  color: var(--oxford-navy);
  padding-bottom: 12px;
  border-bottom: 2px solid var(--academic-red);
  margin-bottom: 20px;
}
.section-block--home-journals .section-title { margin-bottom: 16px; }
.section-title--light { border-bottom-color: var(--surface-variant); }
.section-block > h1 {
  font-size: 32px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--academic-red);
  margin-bottom: 32px;
}

.journal-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  width: 100%;
}
.section-block--home-journals .journal-grid {
  overflow: visible;
  padding-top: 4px;
}
@media (min-width: 900px) { .journal-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; } }
.journal-grid--list {
  grid-template-columns: 1fr;
  gap: 24px;
}

.journal-card {
  display: flex; gap: 16px;
  background: var(--paper-white);
  border: 1px solid var(--surface-variant);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: var(--shadow-ambient);
  transition: box-shadow 0.3s, transform 0.3s;
  width: 100%; min-width: 0; min-height: auto;
}
.journal-card--list {
  padding: 24px;
  gap: 24px;
  align-items: flex-start;
}
@media (min-width: 768px) {
  .journal-card--list { flex-direction: row; }
}
.journal-card--list .journal-card-cover {
  width: 128px;
  height: auto;
  min-height: 168px;
  max-height: 200px;
  border: 1px solid var(--outline-variant);
}
.journal-card--list .journal-card-cover img {
  object-fit: cover;
  height: 100%;
  min-height: 168px;
}
.journal-card-desc {
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.65;
  color: var(--slate-grey);
  margin-top: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.journal-card-issn {
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 500;
  color: var(--slate-grey);
  margin-bottom: 4px;
}
.meta-sep { margin: 0 8px; color: var(--surface-variant); }
.journal-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.journal-card-cover {
  width: 96px; height: 128px; flex-shrink: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface-variant);
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-ambient);
}
@media (min-width: 768px) {
  .journal-card-cover { width: 128px; height: 176px; }
}
.journal-card-cover img { width: 100%; height: 100%; object-fit: cover; }
.journal-card-cover .cover-placeholder { font-size: 40px; color: var(--slate-grey); }
.journal-card > img { width: 128px; height: 176px; object-fit: cover; border-radius: var(--radius); flex-shrink: 0; }

.card-body { flex: 1; min-width: 0; }
.journal-card--home {
  align-items: center;
}
.journal-card--home .card-body {
  display: flex;
  flex-direction: column;
  align-self: stretch;
}
.journal-card-actions {
  display: flex;
  flex-wrap: nowrap;
  gap: 10px;
  margin-top: 14px;
  width: 70%;
}
@media (max-width: 767px) {
  .journal-card-actions {
    width: 100%;
  }
}

.journal-card--home .journal-card-actions {
  margin-top: auto;
  padding-top: 16px;
}
.btn-card {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.2;
  border-radius: var(--radius);
  text-decoration: none;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  flex: 1 1 0;
  min-width: 0;
  text-align: center;
  white-space: nowrap;
}
.btn-card--primary {
  background: var(--academic-red);
  color: #fff;
  border: 1px solid var(--academic-red);
}
.btn-card--primary:hover { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-card--outline {
  background: var(--paper-white);
  color: var(--oxford-navy);
  border: 1px solid var(--oxford-navy);
}
.btn-card--outline:hover { background: var(--oxford-navy); color: #fff; }
@media (max-width: 767px) {
  .journal-card--home .btn-card {
    padding: 7px 6px;
    font-size: 11px;
  }
}

/* 首页期刊标识章 — SV / ADECP */
.journal-card--seal {
  position: relative;
  overflow: visible;
}
.journal-card--seal .card-body {
  padding-right: 96px;
  padding-top: 4px;
}
.journal-card--list.journal-card--seal {
  position: relative;
  overflow: visible;
}
.journal-card-indexing {
  margin-top: 10px;
}
.journal-seal {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 3;
  width: 116px;
  height: 116px;
  pointer-events: none;
}
.journal-seal__lace {
  position: relative;
  width: 100%;
  height: 100%;
}
.journal-seal__svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 5px 14px rgba(27, 38, 49, 0.14));
}
.journal-seal__shape {
  fill: #fff;
  stroke: #c8ced6;
  stroke-width: 1.2;
}
.journal-seal__inner-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  border: 1.5px solid #7a8794;
  border-radius: 50%;
  box-sizing: border-box;
  z-index: 1;
  pointer-events: none;
}
.journal-seal__frame {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 68px;
  height: 68px;
  /* padding: 6px 4px; */
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  text-align: center;
  background: #fff;
  border: none;
  border-radius: 50%;
  box-shadow: none;
  z-index: 2;
}
.journal-seal__if {
  font-family: var(--font-ui);
  font-size: 15px;
  font-weight: 700;
  color: var(--oxford-navy);
  line-height: 1.1;
  letter-spacing: 0.01em;
}
.journal-seal__q {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-top: 2px;
  border-radius: 50%;
  background: var(--academic-red);
  color: #fff;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  box-shadow: 0 2px 8px rgba(163, 30, 34, 0.3);
}
@media (max-width: 767px) {
  .journal-seal {
    display: none;
  }
  .journal-card--seal .card-body {
    padding-right: 0;
    padding-top: 0;
  }
}
.card-header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: nowrap;
}
.card-title {
  font-family: var(--font-serif);
  font-size: 18px; font-weight: 600;
  color: var(--oxford-navy);
  line-height: 1.35;
  display: block;
  flex: 1;
  min-width: 0;
}
.card-title:hover { color: var(--academic-red); }
.card-meta-grid { display: grid; gap: 6px; }
.meta-row {
  display: flex; gap: 8px;
  font-family: var(--font-ui);
  font-size: 12px; color: var(--slate-grey);
}
.meta-label { font-weight: 700; color: var(--oxford-navy); min-width: 100px; flex-shrink: 0; }
.card-body > div:not(.card-header-row):not(.card-meta-grid) {
  font-family: var(--font-ui); font-size: 12px; color: var(--slate-grey); margin-top: auto;
}

.more-link {
  text-align: center; margin-top: 20px;
  font-family: var(--font-ui);
}
.more-link a {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 24px;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  color: var(--oxford-navy); font-weight: 600;
  background: var(--paper-white);
}
.more-link a:hover { background: var(--surface-container-low); color: var(--academic-red); }

.article-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
}
@media (min-width: 640px) {
  .article-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1024px) {
  .article-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
}

.section-block--home-articles .article-grid {
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}
@media (min-width: 768px) {
  .section-block--home-articles .article-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
}
@media (min-width: 1200px) {
  .section-block--home-articles .article-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.article-card {
  width: 100%;
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  background: var(--paper-white);
  border: 1px solid var(--surface-variant);
  border-radius: var(--radius-lg);
  padding: 20px 20px 16px;
  box-shadow: var(--shadow-ambient);
  display: flex; flex-direction: column; gap: 10px;
  transition: box-shadow 0.3s, transform 0.3s, border-color 0.3s;
  box-sizing: border-box;
  border-left: 3px solid transparent;
}
.article-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
  border-left-color: var(--academic-red);
}
.section-block--home-articles .article-card {
  border-left: 1px solid var(--surface-variant);
}
.section-block--home-articles .article-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(27, 38, 49, 0.1);
  border-color: var(--outline-variant);
  border-left: 1px solid var(--outline-variant);
}
.article-card-top {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.article-meta {
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 600;
  color: var(--academic-red);
  background: rgba(163, 30, 34, 0.08);
  padding: 3px 8px;
  border-radius: var(--radius);
  align-self: flex-start;
  max-width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.article-date {
  font-family: var(--font-ui);
  font-size: 12px; color: var(--slate-grey);
  display: flex; align-items: center; gap: 4px;
  margin-top: -4px;
}
.article-title {
  font-family: var(--font-serif);
  font-size: 17px; font-weight: 600;
  color: var(--oxford-navy);
  line-height: 1.4;
  flex: 1;
  word-break: break-word;
  overflow-wrap: anywhere;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.article-title:hover { color: var(--academic-red); }
.article-card-footer {
  margin-top: auto;
  padding-top: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  border-top: 1px solid var(--surface-variant);
}
.article-type, .article-card .chip { margin-top: 0; align-self: auto; }
.article-type {
  display: inline-block;
  background: var(--surface-container-high);
  color: var(--oxford-navy);
  font-family: var(--font-ui);
  font-size: 12px; padding: 4px 8px; border-radius: var(--radius);
}
.doi {
  font-family: var(--font-ui);
  font-size: 11px; color: var(--slate-grey);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  min-width: 0;
}

/* ===== Journal detail ===== */
.breadcrumb {
  font-family: var(--font-ui);
  font-size: 13px; color: var(--slate-grey);
  padding: 16px 0;
}
.breadcrumb a:hover { color: var(--academic-red); }

.journal-banner {
  background: linear-gradient(135deg, var(--oxford-navy) 0%, #2c3e50 100%);
  padding: 40px 0; color: var(--paper-white);
}
.journal-banner h2, .journal-banner h3 { color: var(--paper-white); }
.journal-banner .center { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; flex-wrap: wrap; }
.journal-code { font-family: var(--font-ui); font-size: 14px; margin-bottom: 8px; }
.badge-open {
  background: rgba(255,255,255,0.15);
  color: #fff; font-family: var(--font-ui);
  font-size: 11px; font-weight: 600;
  padding: 4px 10px; border-radius: 999px;
  margin-left: 8px;
}
.issn { font-family: var(--font-ui); font-size: 14px; opacity: 0.9; margin-top: 4px; }

.journal-stats {
  background: var(--paper-white);
  border-bottom: 1px solid var(--surface-variant);
  padding: 16px 0;
  box-shadow: var(--shadow-ambient);
}
.stats-row { display: flex; align-items: center; gap: 32px; flex-wrap: wrap; }
.stat {
  font-family: var(--font-ui);
  font-size: 12px; color: var(--slate-grey); text-align: center;
}
.stat strong { display: block; font-size: 22px; color: var(--oxford-navy); font-weight: 700; }
.journal-search { margin-left: auto; display: flex; }
.journal-search input {
  padding: 8px 12px; border: 1px solid var(--outline-variant);
  border-radius: var(--radius) 0 0 var(--radius);
  font-family: var(--font-ui); outline: none;
}
.journal-search input:focus { box-shadow: inset 0 0 0 2px var(--academic-red); }
.journal-search button {
  padding: 8px 14px;
  background: var(--academic-red); color: #fff;
  border: none; border-radius: 0 var(--radius) var(--radius) 0;
  cursor: pointer;
}

.journal-body { display: flex; gap: 24px; padding: 32px 0; flex-wrap: wrap; }
.journal-sidebar { width: 100%; flex-shrink: 0; }
@media (min-width: 900px) { .journal-sidebar { width: 280px; } }

.sidebar-card {
  background: var(--surface-container-low);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin-bottom: 16px;
  border: 1px solid var(--surface-variant);
}
.journal-cover-link { display: block; text-align: center; margin-bottom: 16px; }
.journal-cover-link img { max-width: 100%; border-radius: var(--radius); box-shadow: var(--shadow-ambient); }
.journal-cover-link span {
  display: block; margin-top: 8px;
  font-family: var(--font-ui); font-size: 13px; font-weight: 600;
  color: var(--oxford-navy);
}
.btn-submit {
  display: block; text-align: center;
  background: var(--academic-red); color: #fff;
  font-family: var(--font-ui);
  font-size: 13px; font-weight: 700;
  padding: 12px; border-radius: var(--radius);
  transition: background 0.2s;
}
.btn-submit:hover { background: var(--primary); color: #fff; }

.journal-menu-item {
  display: block; padding: 10px 8px;
  font-family: var(--font-ui);
  font-size: 13px; color: var(--slate-grey);
  border-radius: var(--radius);
}
.journal-menu-item:hover, .journal-menu-item.active {
  color: var(--academic-red); background: var(--surface-container-high);
}
.journal-menu-item.active { font-weight: 600; }

.toc-year { font-family: var(--font-ui); font-weight: 700; color: var(--oxford-navy); margin: 8px 0 4px; font-size: 13px; }
.toc-item { display: block; padding: 4px 0 4px 8px; font-size: 13px; color: var(--slate-grey); }
.toc-item:hover { color: var(--academic-red); }
.toc-more { display: block; margin-top: 8px; font-family: var(--font-ui); font-size: 13px; font-weight: 600; color: var(--academic-red); }

.journal-main {
  flex: 1; min-width: 0;
  background: var(--paper-white);
  border-radius: var(--radius-lg);
  padding: 24px 32px;
  box-shadow: var(--shadow-ambient);
  border: 1px solid var(--surface-variant);
}
.journal-index { display: flex; gap: 32px; flex-wrap: wrap; }
.journal-face { width: 200px; flex-shrink: 0; }
.journal-face img { width: 100%; border-radius: var(--radius-lg); box-shadow: var(--shadow-ambient); }

.rich-content { font-family: var(--font-serif); font-size: 16px; color: var(--on-surface); line-height: 1.75; }
.rich-content.collapsed { max-height: 120px; overflow: hidden; }
.rich-content h2, .rich-content h3 { font-family: var(--font-ui); margin-top: 24px; }
.btn-text {
  background: none; border: none;
  color: var(--academic-red); cursor: pointer;
  font-family: var(--font-ui); font-weight: 600;
  margin: 8px 0 16px;
}

.editorial-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 640px) { .editorial-grid { grid-template-columns: repeat(2, 1fr); } }
.editorial-card {
  border: 1px solid var(--surface-variant);
  border-radius: var(--radius-lg);
  padding: 16px;
  background: var(--surface-container-low);
}
.editorial-card img { width: 64px; height: 64px; border-radius: 50%; object-fit: cover; margin-bottom: 8px; }

.checklist-item { display: flex; gap: 12px; margin-bottom: 12px; font-family: var(--font-serif); }
.check-icon { color: var(--academic-red); font-weight: 700; }

/* ===== Forms ===== */
.form-page {
  max-width: 480px; margin: 0 auto;
  background: var(--paper-white);
  padding: 32px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-ambient);
  border: 1px solid var(--surface-variant);
}
.form-page.wide { max-width: 800px; }
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block; font-family: var(--font-ui);
  font-size: 13px; font-weight: 600;
  color: var(--oxford-navy); margin-bottom: 6px;
}
.form-group input, textarea, select {
  width: 100%; padding: 10px 12px;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  font-family: var(--font-serif); font-size: 15px;
  outline: none; transition: box-shadow 0.2s;
}
.form-group input:focus, textarea:focus, select:focus {
  box-shadow: 0 0 0 2px var(--academic-red);
  border-color: var(--academic-red);
}
.btn-primary {
  width: 100%; padding: 12px 24px;
  background: var(--academic-red); color: #fff;
  border: none; border-radius: var(--radius);
  font-family: var(--font-ui); font-size: 14px; font-weight: 700;
  cursor: pointer; transition: background 0.2s;
}
.btn-primary:hover { background: var(--primary); }
.btn-secondary {
  padding: 10px 20px;
  background: var(--paper-white);
  border: 1px solid var(--oxford-navy);
  border-radius: var(--radius);
  font-family: var(--font-ui); font-weight: 600;
  color: var(--oxford-navy); cursor: pointer;
}
.btn-secondary:hover { background: var(--oxford-navy); color: #fff; }

/* ===== Tabs & tables ===== */
.tabs { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 24px; border-bottom: 1px solid var(--surface-variant); }
.tab-btn {
  padding: 10px 16px;
  background: transparent;
  border: none; border-bottom: 2px solid transparent;
  font-family: var(--font-ui); font-size: 13px; font-weight: 600;
  color: var(--slate-grey); cursor: pointer; margin-bottom: -1px;
}
.tab-btn.active { color: var(--academic-red); border-bottom-color: var(--academic-red); }
.tab-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.data-table { width: 100%; border-collapse: collapse; font-family: var(--font-ui); font-size: 14px; }
.data-table th, .data-table td { border: 1px solid var(--surface-variant); padding: 12px; text-align: left; }
.data-table th { background: var(--surface-container-low); color: var(--oxford-navy); font-weight: 600; }
.data-table tr:hover { background: var(--surface-container-low); }

.form-grid { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 640px) { .form-grid { grid-template-columns: repeat(2, 1fr); } }
.form-grid .full { grid-column: 1 / -1; }

.file-list { list-style: none; }
.file-list li {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px; border-bottom: 1px solid var(--surface-variant);
  font-family: var(--font-ui); font-size: 14px;
}

.archives-year { font-family: var(--font-ui); font-weight: 700; color: var(--oxford-navy); margin: 20px 0 8px; }
.archives-issue { display: block; padding: 6px 0; font-size: 14px; }

.profile-avatar { width: 100px; height: 100px; border-radius: 50%; object-fit: cover; border: 2px solid var(--surface-variant); }
.profile-header { display: flex; gap: 24px; align-items: center; margin-bottom: 24px; }

.pay-frame { width: 100%; border: none; min-height: 550px; border-radius: var(--radius-lg); }

.ann-item { border-bottom: 1px solid var(--surface-variant); padding: 24px 0; }
.ann-item h3 { font-family: var(--font-serif); font-size: 20px; margin-bottom: 8px; }

/* ===== Announcements cards ===== */
.main-content--ann { background: transparent; border: none; box-shadow: none; padding: 0; }
.ann-list { display: flex; flex-direction: column; gap: 20px; }
.ann-card {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  background: var(--paper-white);
  border: 1px solid var(--surface-variant);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-ambient);
  transition: box-shadow 0.25s, transform 0.25s;
}
.ann-card:hover { box-shadow: var(--shadow-hover); }
@media (min-width: 720px) {
  .ann-card { flex-direction: row; min-height: 168px; }
}
.ann-card-image {
  flex-shrink: 0;
  width: 100%;
  aspect-ratio: 2.2 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: linear-gradient(145deg, var(--surface-container-low) 0%, #eef1f4 100%);
  border-bottom: 1px solid var(--surface-variant);
}
@media (min-width: 720px) {
  .ann-card-image {
    width: 220px;
    aspect-ratio: auto;
    min-height: 100%;
    border-bottom: none;
    border-right: 1px solid var(--surface-variant);
    padding: 20px;
  }
}
.ann-card-image img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 150px;
  object-fit: contain;
  display: block;
  border-radius: 6px;
  background: #fff;
  padding: 6px;
  box-shadow: 0 4px 14px rgba(27, 38, 49, 0.1);
}
@media (min-width: 720px) {
  .ann-card-image img { max-height: 140px; }
}
.ann-card-body { flex: 1; min-width: 0; padding: 20px 24px; display: flex; flex-direction: column; gap: 10px; }
.ann-card-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.ann-card-meta time { font-family: var(--font-ui); font-size: 12px; color: var(--slate-grey); display: flex; align-items: center; gap: 4px; }
.ann-card-title { font-family: var(--font-serif); font-size: 20px; font-weight: 600; line-height: 1.35; }
.ann-card-title a { color: var(--oxford-navy); }
.ann-card-title a:hover { color: var(--academic-red); }
.ann-card-excerpt { font-size: 15px; color: var(--slate-grey); line-height: 1.6; }
.ann-card-excerpt img { display: none; }
.ann-card-more {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-ui); font-size: 13px; font-weight: 600;
  color: var(--academic-red); margin-top: auto; padding-top: 8px;
}
.ann-card-more:hover { text-decoration: underline; }

/* ===== Document layout (Policies / About) ===== */
.doc-layout {
  display: flex;
  flex-direction: column;
  gap: 24px;
  width: 100%;
}
@media (min-width: 900px) {
  .doc-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 32px;
  }
  .doc-article { grid-column: 1; grid-row: 1; }
  .doc-sidebar { grid-column: 2; grid-row: 1; }
}
.page-with-sidebar--doc { align-items: flex-start; }
.page-with-sidebar--doc .doc-article { flex: 1; min-width: 0; }

.doc-sidebar {
  width: 100%;
  flex-shrink: 0;
}
@media (min-width: 900px) {
  .doc-sidebar {
    width: 260px;
    min-height: 100%;
    align-self: stretch;
  }
}
.doc-sidebar-inner {
  background: var(--paper-white);
  border: 1px solid var(--surface-variant);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-ambient);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
@media (min-width: 900px) {
  .doc-sidebar-inner {
    position: sticky;
    top: calc(var(--header-h) + 12px);
    max-height: calc(100vh - var(--header-h) - 130px);
  }
}
.doc-sidebar-title {
  font-family: var(--font-ui);
  font-size: 15px; font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--oxford-navy);
  padding: 14px 20px;
  margin: 0;
  background: var(--surface-container-low);
  border-bottom: 1px solid var(--surface-variant);
}
.doc-sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px;
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  scrollbar-width: thin;
}
.doc-toc-link {
  display: block;
  font-family: var(--font-ui);
  font-size: 13px; font-weight: 500;
  color: var(--slate-grey);
  padding: 10px 12px 10px 14px;
  line-height: 1.45;
  border-radius: 6px;
  border-left: 3px solid transparent;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.doc-toc-link:hover {
  background: var(--surface-container-low);
  color: var(--oxford-navy);
}
.doc-toc-link.active {
  background: rgba(163, 30, 34, 0.07);
  border-left-color: var(--academic-red);
  color: var(--academic-red);
  font-weight: 600;
}

.doc-article {
  flex: 1; min-width: 0;
  background: var(--paper-white);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  box-shadow: var(--shadow-ambient);
  border: 1px solid var(--surface-variant);
}
@media (min-width: 768px) { .doc-article { padding: 48px; } }
.doc-article--standalone { margin-top: 0; }

.doc-article-header {
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--surface-variant);
}
.doc-article-header h1 {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.doc-article-header p {
  font-family: var(--font-serif);
  font-size: 18px;
  line-height: 1.65;
  color: var(--slate-grey);
  margin: 0;
}

.doc-prose { font-family: var(--font-serif); font-size: 16px; line-height: 1.75; color: var(--on-surface); }
.doc-prose [id] { scroll-margin-top: calc(var(--header-h) + 24px); }
.doc-prose p { margin-bottom: 16px; }
.doc-prose p[id] {
  font-family: var(--font-ui);
  font-size: 22px;
  font-weight: 600;
  color: var(--oxford-navy);
  margin-top: 40px;
  margin-bottom: 16px;
  padding-top: 8px;
  scroll-margin-top: 100px;
}
.doc-prose p[id]:first-child { margin-top: 0; }
.doc-prose ul, .doc-prose ol { margin: 12px 0 16px 24px; }
.doc-prose strong { font-weight: 600; color: var(--oxford-navy); }
.doc-prose img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  margin: 16px 0;
  display: block;
}
.doc-prose table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 14px; }
.doc-prose th, .doc-prose td { border: 1px solid var(--surface-variant); padding: 10px; text-align: left; }
.doc-prose th { background: var(--surface-container-low); font-family: var(--font-ui); }

.doc-section { margin-bottom: 48px; }
.doc-section-title {
  display: flex; align-items: flex-start; gap: 12px;
  font-family: var(--font-ui);
  font-size: 24px; font-weight: 600;
  color: var(--oxford-navy);
  margin-bottom: 20px;
}
.doc-section-title .material-symbols-outlined { color: var(--academic-red); flex-shrink: 0; margin-top: 2px; }
.doc-section-body { padding-left: 36px; }
@media (max-width: 640px) { .doc-section-body { padding-left: 0; } }

.rich-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  display: block;
  margin: 12px 0;
}

/* ===== Policies (legacy fallback) ===== */
.policies-layout { display: flex; flex-direction: column; gap: 24px; padding: 32px 0; }
@media (min-width: 768px) { .policies-layout { flex-direction: row; } }
.policies-menu {
  width: 100%; list-style: none;
  background: var(--surface-container-low);
  border-radius: var(--radius-lg);
  padding: 16px; border: 1px solid var(--surface-variant);
}
@media (min-width: 768px) { .policies-menu { width: 280px; flex-shrink: 0; position: sticky; top: 96px; } }
.policies-menu li {
  padding: 10px 12px; cursor: pointer;
  font-family: var(--font-ui); font-size: 13px;
  color: var(--slate-grey); border-radius: var(--radius);
}
.policies-menu li:hover, .policies-menu li.active {
  color: var(--academic-red); background: var(--surface-container-high);
}
.policies-content {
  flex: 1;
  background: var(--paper-white);
  padding: 32px 48px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-ambient);
  border: 1px solid var(--surface-variant);
}

.search-form {
  background: var(--surface-container-low);
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--surface-variant);
  margin-bottom: 24px;
}
.main-content .search-form {
  box-shadow: none;
}
.search-form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
@media (min-width: 640px) {
  .search-form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: end;
  }
}
@media (min-width: 960px) {
  .search-form-grid--advanced {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
.search-field label {
  display: block;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 600;
  color: var(--oxford-navy);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}
.search-form input,
.search-form select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  font-family: var(--font-ui);
  font-size: 14px;
  background: var(--paper-white);
  color: var(--on-surface);
}
.search-form input:focus,
.search-form select:focus {
  outline: none;
  border-color: var(--academic-red);
  box-shadow: 0 0 0 2px rgba(163, 30, 34, 0.12);
}
.search-form-actions {
  display: flex;
  justify-content: flex-start;
  gap: 12px;
  flex-wrap: wrap;
}
.search-results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--surface-variant);
}
.search-results-header h2 {
  margin: 0;
  font-size: 18px;
  font-family: var(--font-ui);
}
.search-results-count {
  font-size: 14px;
  color: var(--on-surface-variant);
}
.search-results { margin-top: 8px; }
.result-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--surface-variant);
}
.result-item:last-child { border-bottom: none; }
.result-item .article-meta { margin-bottom: 6px; }
.result-section {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--academic-red);
  margin-bottom: 8px;
}
.result-item .article-title {
  display: block;
  font-size: 18px;
  margin-bottom: 6px;
  -webkit-line-clamp: unset;
  overflow: visible;
}
.result-authors {
  font-size: 14px;
  color: var(--on-surface-variant);
  margin-bottom: 6px;
}
.result-journal-info {
  font-size: 13px;
  color: var(--on-surface-variant);
  margin-bottom: 8px;
}
.result-journal-info .journal-name { font-weight: 600; color: var(--oxford-navy); }
.result-abstract {
  font-size: 14px;
  line-height: 1.6;
  color: var(--on-surface);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.result-item .doi { margin-top: 4px; }

/* ===== Announcement detai.chip--oal ===== */
.ann-detail {
  /* max-width: 800px; */
  margin: 0 auto;
}
.ann-detail-hero {
  margin-bottom: 28px;
  text-align: center;
  padding: 20px;
  background: var(--surface-container-low);
  border-radius: var(--radius-lg);
  border: 1px solid var(--surface-variant);
}
.ann-detail-hero img {
  max-width: 100%;
  /* max-height: 200px; */
  object-fit: contain;
  border-radius: var(--radius);
}
.ann-detail-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  font-family: var(--font-ui);
  font-size: 13px;
  color: var(--slate-grey);
}
.ann-detail-meta .chip--journal { max-width: none; }
.ann-detail-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 40px;
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 600;
  color: var(--academic-red);
}
.ann-detail-back:hover { text-decoration: underline; }

.special-item { margin-bottom: 24px; padding-bottom: 24px; border-bottom: 1px solid var(--surface-variant); }
.special-item h3 { font-family: var(--font-serif); }

.pagination {
  display: flex;
  gap: 4px;
  justify-content: center;
  align-items: center;
  margin-top: 24px;
  flex-wrap: nowrap;
}
.page-btn {
  min-width: 36px;
  height: 36px;
  padding: 0 10px;
  border: 1px solid var(--surface-variant);
  background: var(--paper-white);
  border-radius: var(--radius);
  font-family: var(--font-ui);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--oxford-navy);
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.page-btn--nav {
  font-size: 20px;
  font-weight: 600;
  padding: 0 8px;
}
.page-btn.active {
  background: var(--academic-red);
  color: #fff;
  border-color: var(--academic-red);
  font-weight: 600;
}
.page-btn:hover:not(.active):not(:disabled) {
  background: var(--surface-container-low);
  border-color: var(--outline-variant);
}
.page-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}
.page-ellipsis {
  min-width: 28px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-ui);
  font-size: 14px;
  color: var(--slate-grey);
  user-select: none;
}

@media (max-width: 1099px) {
  .journal-card--list { flex-direction: column; }
  .journal-card--list .journal-card-cover { width: 100%; max-height: 220px; min-height: 0; }
}

/* ===== Mobile only (≤767px) — 不影响 PC ===== */
@media (max-width: 767px) {
  /* 首页 / 期刊列表页：期刊卡片统一样式（横向 + 封面完整显示） */
  .section-block--home-journals .journal-card:not(.journal-card--list),
  .journal-grid--list .journal-card:not(.journal-card--list) {
    flex-direction: row;
    padding: 16px;
    gap: 16px;
  }
  .section-block--home-journals .journal-card:not(.journal-card--list):not(.journal-card--home),
  .journal-grid--list .journal-card:not(.journal-card--list) {
    align-items: flex-start;
  }
  .section-block--home-journals .journal-card:not(.journal-card--list) .journal-card-cover,
  .journal-grid--list .journal-card:not(.journal-card--list) .journal-card-cover {
    width: 96px;
    height: auto;
    aspect-ratio: 3 / 4;
    min-height: 128px;
    max-height: none;
    background: var(--surface-container-low);
  }
  .section-block--home-journals .journal-card:not(.journal-card--list) .journal-card-cover img,
  .journal-grid--list .journal-card:not(.journal-card--list) .journal-card-cover img {
    width: 100%;
    height: 100%;
    object-fit: contain;
  }

  /* 移动端不显示 Open Access 标签 */
  .section-block--home-journals .chip--oa,
  .journal-grid--list .chip--oa {
    display: none;
  }

  .journal-grid--list {
    gap: 16px;
  }

  /* 侧栏：隐藏 Navigation（顶部已有菜单） */
  .sidebar-block--nav {
    display: none;
  }

  /* 侧栏页：主内容在上，侧栏在下；News 模块置底 */
  .page-with-sidebar {
    flex-direction: column;
  }
  .page-with-sidebar .main-content {
    order: 1;
  }
  .page-with-sidebar > div:first-child {
    order: 2;
  }
  .sidebar {
    display: flex;
    flex-direction: column;
  }
  .sidebar-block:has(.btn-submit) {
    order: 8;
  }
  #sidebar-announcements {
    order: 9;
  }
}

/* 政策页 Contents 导航：900px 以下隐藏（PC 端 900px+ 不受影响） */
@media (max-width: 899px) {
  .doc-layout .doc-sidebar {
    display: none;
  }
}