/* ===========================================
   ZenRead Academic v5.2 — Complete Merged CSS
   合并文件：tokens, base, header, footer, badge,
   buttons, conference-card, filter-panel, home,
   list, detail, news
=========================================== */

/* === tokens.css (94 lines) === */
:root {
  /* ZenRead v5 — 1300 基准 · WeaveCore 质感 */

  --color-primary-950: #0a1628;
  --color-primary-900: #0c1e3d;
  --color-primary-800: #0f2d5c;
  --color-primary-700: #134074;
  --color-primary-600: #1a5fbf;
  --color-primary-500: #2272e5;
  --color-primary-400: #4d94f0;
  --color-primary-300: #7eb3f7;
  --color-primary-100: #dbeafe;
  --color-primary-50:  #eef4fc;
  --color-primary-200: #b8d4f8;

  --color-accent-blue:   #2272e5;
  --color-accent-green:  #0d9f6e;
  --color-accent-orange: #e8940a;
  --color-accent-purple: #7c5cdb;
  --color-accent-cyan:   #0891b2;

  /* 出版方徽章色（P2-5 token 收敛：原硬编码 hex） */
  --pub-ieee:     #00629B;
  --pub-acm:      #0085CA;
  --pub-iop:      #C8102E;
  --pub-springer: #C69200;
  --pub-elsevier: #D35400;
  --pub-aip:      #1A4480;
  --pub-spie:     #C8102E;
  --pub-nature:   #BC171A;

  /* 标签算法配色（与 tag_color_palette 的 blue/green/orange/purple 对应） */
  --tag-blue:        #2563eb;
  --tag-blue-bg:     rgba(37, 99, 235, 0.08);
  --tag-blue-border: rgba(37, 99, 235, 0.28);
  --tag-green:        #059669;
  --tag-green-bg:     rgba(5, 150, 105, 0.08);
  --tag-green-border: rgba(5, 150, 105, 0.28);
  --tag-orange:        #d97706;
  --tag-orange-bg:     rgba(217, 119, 6, 0.08);
  --tag-orange-border: rgba(217, 119, 6, 0.28);
  --tag-purple:        #7c3aed;
  --tag-purple-bg:     rgba(124, 58, 237, 0.08);
  --tag-purple-border: rgba(124, 58, 237, 0.28);

  --color-bg:              #f6f8fb;
  --color-surface:         #ffffff;
  --color-surface-alt:     #f0f3f8;
  --color-border:          #dce3ed;
  --color-border-light:    #e8edf4;
  --color-text-primary:    #0a1628;
  --color-text-secondary:  #44566f;
  --color-text-tertiary:   #64748b;  /* 4.71:1 白底对比度，达标 WCAG AA（原 #8494a7 仅 3.1:1） */
  --color-text-inverse:    #ffffff;

  --color-success:  #0d9f6e;
  --color-warning:  #c27803;
  --color-danger:   #d63b3b;
  --color-info:     #2272e5;

  --badge-ei:     #c27803;
  --badge-scopus: #2272e5;
  --badge-sci:    #d63b3b;
  --badge-cpci:   #0d9f6e;
  --badge-ieee:   #134074;

  --badge-ei-subtle-bg: #fff8ed;
  --badge-ei-subtle-border: #fde0a8;
  --badge-scopus-subtle-bg: #eef4fc;
  --badge-scopus-subtle-border: #b8d4f8;
  --badge-sci-subtle-bg: #fef2f2;
  --badge-sci-subtle-border: #fecaca;
  --badge-cpci-subtle-bg: #ecfdf5;
  --badge-cpci-subtle-border: #a7f3d0;

  --font-heading: 'Plus Jakarta Sans', 'Noto Sans SC', system-ui, sans-serif;
  --font-display: 'Plus Jakarta Sans', 'Noto Sans SC', system-ui, sans-serif;
  --font-body:    'Plus Jakarta Sans', 'Noto Sans SC', system-ui, sans-serif;
  --font-ui:      'Plus Jakarta Sans', 'Noto Sans SC', system-ui, sans-serif;
  --font-mono:    'Plus Jakarta Sans', 'IBM Plex Mono', Consolas, monospace;

  --space-3xs: 2px;
  --space-2xs: 4px;
  --space-xs:  8px;
  --space-sm:  12px;
  --space-md:  16px;
  --space-lg:  24px;
  --space-xl:  32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 88px;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  --shadow-xs: 0 1px 3px rgba(10, 22, 40, 0.04);
  --shadow-sm: 0 4px 16px rgba(10, 22, 40, 0.06);
  --shadow-md: 0 12px 36px rgba(10, 22, 40, 0.08);
  --shadow-lg: 0 24px 56px rgba(10, 22, 40, 0.1);

  --container-max: 1300px;
  --container-wide: 1300px;
  --container-narrow: 880px;
  --header-height: 72px;
  --filter-panel-width: 272px;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --transition-fast: 0.15s var(--ease-out);
  --transition-base: 0.22s var(--ease-out);

  --z-sticky: 200;
  --z-overlay: 300;
}

/* === base.css (102 lines) === */
/* ZenRead · Base reset & utilities */

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

html {
  background: var(--color-bg);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text-primary);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; }
a {
  color: var(--color-primary-500);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}
a:hover { color: var(--color-primary-300); }

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}
.container--wide { max-width: var(--container-wide); }
.container--narrow { max-width: var(--container-narrow); }

.section-label {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-primary-500);
  margin-bottom: var(--space-xs);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--color-text-primary);
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}
.section-header .section-title { margin-bottom: 0; }

.section-more {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-primary-500);
  text-decoration: none;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.section-more .icon-chevron { flex-shrink: 0; opacity: 0.7; transition: transform var(--transition-fast), opacity var(--transition-fast); }
.section-more:hover { text-decoration: underline; }
.section-more:hover .icon-chevron { opacity: 1; transform: translateX(2px); }

.page-section {
  padding: var(--space-3xl) 0;
}

.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;
}

:focus-visible {
  outline: 2px solid var(--color-primary-300);
  outline-offset: 2px;
}

@media (max-width: 639px) {
  .page-section { padding: var(--space-2xl) 0; }
}

/* === header.css (219 lines) === */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-xs);
}

.site-header .container {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-xl);
  height: 100%;
  max-width: var(--container-wide);
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--color-text-primary);
  flex-shrink: 0;
}

.header-logo__img {
  height: 40px;
  width: auto;
  display: block;
}

.header-logo__name {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.2;
  display: block;
  letter-spacing: -0.02em;
}

.header-logo__tagline {
  font-family: var(--font-ui);
  font-size: 0.625rem;
  font-weight: 500;
  color: var(--color-text-tertiary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  display: block;
}

.header-nav-wrap {
  display: flex;
  justify-content: center;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  padding: 4px;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-full);
}

.header-nav a {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: 8px 20px;
  border-radius: var(--radius-full);
  transition: color var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}

.header-nav a:hover {
  color: var(--color-primary-600);
  background: #fff;
}

.header-nav a.active {
  color: var(--color-primary-600);
  font-weight: 600;
  background: #fff;
  box-shadow: var(--shadow-xs);
}

.header-end {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  justify-self: end;
}

.header-search {
  display: flex;
  align-items: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.header-search:focus-within {
  border-color: var(--color-primary-300);
  box-shadow: 0 0 0 3px rgba(43, 127, 255, 0.12);
}

.header-search__input {
  width: 240px;
  height: 40px;
  padding: 0 16px;
  border: none;
  outline: none;
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  background: transparent;
  color: var(--color-text-primary);
}

.header-search__input::placeholder {
  color: var(--color-text-tertiary);
}

.header-search__btn {
  width: 40px;
  height: 40px;
  border: none;
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-600));
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: opacity var(--transition-fast);
}

.header-search__btn:hover { opacity: 0.9; }
.header-search__btn svg { width: 16px; height: 16px; }

.header-menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #fff;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
}

.mobile-nav {
  display: none;
  position: fixed;
  inset: var(--header-height) 0 0 0;
  background: rgba(12, 25, 41, 0.3);
  z-index: calc(var(--z-sticky) - 1);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.mobile-nav.open { opacity: 1; pointer-events: auto; }

.mobile-nav__panel {
  background: #fff;
  padding: 16px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-nav__search {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 4px 12px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--color-border-light);
}

.mobile-nav__search-input {
  flex: 1;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  font-size: 0.9375rem;
  background: var(--color-surface);
}

.mobile-nav__search-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: var(--radius-md);
  background: var(--color-primary-600);
  color: #fff;
  cursor: pointer;
}

.mobile-nav__search-btn svg {
  width: 18px;
  height: 18px;
}

.mobile-nav__panel a {
  display: block;
  padding: 14px 16px;
  text-decoration: none;
  color: var(--color-text-secondary);
  font-weight: 500;
  border-radius: var(--radius-md);
}

.mobile-nav__panel a.active,
.mobile-nav__panel a:hover {
  background: var(--color-primary-50);
  color: var(--color-primary-600);
}

@media (max-width: 1023px) {
  .site-header .container {
    grid-template-columns: auto 1fr auto;
    gap: var(--space-md);
  }
  .header-nav-wrap,
  .header-search { display: none; }
  .header-menu-btn { display: flex; }
  .mobile-nav { display: block; }
}

@media (max-width: 639px) {
  .header-logo__tagline { display: none; }
}

/* === footer.css (60 lines) === */
.site-footer {
  background: var(--color-primary-900);
  color: rgba(255, 255, 255, 0.65);
  padding: var(--space-4xl) 0 var(--space-xl);
  font-size: 0.875rem;
  line-height: 1.7;
  position: relative;
  overflow: hidden;
}
.site-footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-xl);
}
.footer-friends {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-sm) var(--space-lg);
  padding: var(--space-lg) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.8125rem;
}
.footer-friends__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-xs) var(--space-lg);
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-friends__list a {
  color: rgba(255, 255, 255, 0.45);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.footer-friends__list a:hover {
  color: rgba(255, 255, 255, 0.8);
}
.footer-col h4 {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-md);
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: var(--space-xs); }
.footer-col a {
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.footer-col a:hover { color: rgba(255, 255, 255, 0.9); }
.footer-brand p { margin-top: var(--space-sm); max-width: 300px; line-height: 1.7; }
.footer-social {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 22px;
}
.footer-col .footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: rgba(255, 255, 255, 0.5);
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast),
    transform var(--transition-fast);
  flex-shrink: 0;
}
.footer-col .footer-social a:hover {
  border-color: rgba(77, 148, 240, 0.45);
  background: rgba(34, 114, 229, 0.14);
  color: var(--color-primary-300);
  transform: translateY(-1px);
}
.footer-social img {
  display: block;
  width: 18px;
  height: 18px;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.5;
  transition: opacity var(--transition-fast);
}
.footer-col .footer-social a:hover img {
  opacity: 0.92;
}
.footer-wechat-popup {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.footer-wechat-popup.is-visible {
  opacity: 1;
  pointer-events: auto;
}
.footer-wechat-popup__box {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 24px;
  max-width: 320px;
  text-align: center;
  color: var(--color-text-primary);
}
.footer-wechat-popup__box img {
  margin: 0 auto 12px;
  border-radius: 8px;
  max-width: 240px;
  width: 100%;
  height: auto;
}
.footer-wechat-popup__box p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-text-tertiary);
}
.footer-wechat-popup__close {
  margin-top: 16px;
  padding: 8px 24px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}
.footer-wechat-popup__close:hover {
  border-color: var(--color-primary-300);
  color: var(--color-primary-600);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: var(--space-lg);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.35);
}
.footer-bottom a { color: rgba(255, 255, 255, 0.45); }
.footer-bottom a:hover { color: rgba(255, 255, 255, 0.8); }
@media (max-width: 1023px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 639px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-friends { flex-direction: column; align-items: flex-start; gap: var(--space-sm); }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* === badge.css (83 lines) === */
/* Badge system — 出版方 vs 检索库 分级 */

.badge-group {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
  flex: 0 0 auto;
  width: fit-content;
  max-width: 100%;
  align-self: flex-start;
}

.badge-group__label {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-tertiary);
  letter-spacing: 0.04em;
  margin-right: 4px;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  font-size: 0.75rem;
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: 0.04em;
  border-radius: var(--radius-full);
  white-space: nowrap;
  user-select: none;
  text-transform: uppercase;
  flex-shrink: 0;
  width: fit-content;
  max-width: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
.badge--open { background: var(--color-primary-500); color: #fff; }
.badge--closing { background: var(--color-warning); color: #fff; }
.badge--closed { background: var(--color-danger); color: #fff; }

/* 出版方 — 实心色块（高等级，醒目） */
.badge--publisher,
.badge--publisher.badge--ieee,
.badge--publisher.badge--acm,
.badge--publisher.badge--iop,
.badge--publisher.badge--springer,
.badge--publisher.badge--elsevier,
.badge--publisher.badge--aip,
.badge--publisher.badge--spie,
.badge--publisher.badge--nature {
  color: #fff;
  border: 1px solid transparent;
  font-weight: 700;
  background: var(--color-primary-600, #2272e5);
}
.badge--publisher.badge--ieee    { background: var(--pub-ieee); }
.badge--publisher.badge--acm     { background: var(--pub-acm); }
.badge--publisher.badge--iop     { background: var(--pub-iop); }
.badge--publisher.badge--springer{ background: var(--pub-springer); }
.badge--publisher.badge--elsevier{ background: var(--pub-elsevier); }
.badge--publisher.badge--aip     { background: var(--pub-aip); }
.badge--publisher.badge--spie    { background: var(--pub-spie); }
.badge--publisher.badge--nature  { background: var(--pub-nature); }

/* 检索库 — 半透明线框风格（次级，不抢焦点） */
.badge--ei, .badge--scopus, .badge--sci, .badge--cpci {
  font-weight: 600;
  border: 1px solid;
  background: transparent;
}
.badge--ei     { color: var(--badge-ei); border-color: rgba(194,120,3,0.4); background: rgba(194,120,3,0.06); }
.badge--scopus { color: var(--badge-scopus); border-color: rgba(34,114,229,0.4); background: rgba(34,114,229,0.06); }
.badge--sci    { color: var(--badge-sci); border-color: rgba(214,59,59,0.4); background: rgba(214,59,59,0.06); }
.badge--cpci   { color: var(--badge-cpci); border-color: rgba(13,159,110,0.4); background: rgba(13,159,110,0.06); }

.badge--subtle {
  color: inherit;
  background: transparent;
  border: 1px solid;
}
.badge--ei.badge--subtle     { background: var(--badge-ei-subtle-bg); color: var(--badge-ei); border-color: var(--badge-ei-subtle-border); }
.badge--scopus.badge--subtle { background: var(--badge-scopus-subtle-bg); color: var(--badge-scopus); border-color: var(--badge-scopus-subtle-border); }
.badge--sci.badge--subtle    { background: var(--badge-sci-subtle-bg); color: var(--badge-sci); border-color: var(--badge-sci-subtle-border); }
.badge--cpci.badge--subtle   { background: var(--badge-cpci-subtle-bg); color: var(--badge-cpci); border-color: var(--badge-cpci-subtle-border); }

.conf-card__badges,
.conference-card__badges,
.detail-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: flex-start;
  align-content: flex-start;
}

.conf-card__badges .badge-group,
.conference-card__badges .badge-group,
.detail-badges .badge-group {
  flex: 0 0 auto;
}

/* === buttons.css (77 lines) === */
/* ============================================================
   ZenRead Academic · Button System
   DESIGN.md §4.6 — Primary | Secondary | Ghost | Danger
   ============================================================ */

/* ── Base Button ─────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 20px;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
}

/* ── Variants ────────────────────────────────────────────── */
.btn--primary {
  background: var(--color-primary-900);
  color: #FFFFFF;
}
.btn--primary:hover {
  background: var(--color-primary-700);
}

.btn--secondary {
  background: transparent;
  color: var(--color-primary-500);
  border-color: var(--color-primary-500);
}
.btn--secondary:hover {
  background: var(--color-primary-50);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-secondary);
}
.btn--ghost:hover {
  background: var(--color-surface-alt);
  color: var(--color-text-primary);
}

.btn--danger {
  background: var(--color-danger);
  color: #FFFFFF;
}
.btn--danger:hover {
  background: #A01830;
}

/* ── Sizes ───────────────────────────────────────────────── */
.btn--sm { height: 32px; padding: 0 12px; font-size: 0.8125rem; }
.btn--lg { height: 48px; padding: 0 28px; font-size: 1rem; }

/* ── Disabled ────────────────────────────────────────────── */
.btn:disabled,
.btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* ── Focus visible ───────────────────────────────────────── */
.btn:focus-visible {
  outline: 2px solid var(--color-primary-300);
  outline-offset: 2px;
}

/* === conference-card.css (168 lines) === */
/* ============================================================
   ZenRead Academic · Conference Card
   DESIGN.md §4.1 — Editorial card with cover + badges + meta
   ============================================================ */

/* ── Card Grid Layout ────────────────────────────────────── */
.conference-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 0;
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 0;
  overflow: hidden;
  align-items: stretch;
}
.conference-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-100);
  transform: translateY(-2px);
}

/* ── Cover Image ─────────────────────────────────────────── */
.conference-card__cover-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--color-surface-alt);
  overflow: hidden;
  flex-shrink: 0;
}
.conference-card__cover {
  display: block;
  width: 100%;
  height: 100%;
}
.conference-card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.conference-card__cover--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface-alt);
  width: 100%;
  height: 100%;
}
.conference-card__cover--placeholder .cover-abbr {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--color-primary-600), var(--color-primary-900));
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  color: rgba(255,255,255,0.35);
  letter-spacing: 0.08em;
}
.conference-card__cover--placeholder svg {
  width: 48px;
  height: 48px;
  color: var(--color-primary-300);
  opacity: 0.4;
}

/* ── Cover Overlay (publisher badges + deadline) ────────── */
.conference-card__cover-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  padding: 10px 12px;
  pointer-events: none;
  gap: 8px;
}
.conference-card__cover-badges {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px;
}

.conference-card__cover-deadline {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  color: #fff;
  background: rgba(0,0,0,0.55);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  white-space: nowrap;
  flex-shrink: 0;
  align-self: flex-start;
}
.conference-card__cover-deadline.conference-card__deadline--urgent {
  background: rgba(214,59,59,0.85);
  color: #fff;
}

/* ── Database Badges Row (under title) ──────────────────── */
.conference-card__db-badges {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 2px 0 0;
}
.conference-card__db-badges .badge {
  font-size: 0.6875rem;
  padding: 1px 7px;
}

/* ── Content Area ────────────────────────────────────────── */
.conference-card__body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
  padding: 20px 24px;
}

/* legacy — kept for any SSR helpers that still use .conference-card__badges */
.conference-card__badges {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

/* ── Title Row ──────────────────────────────────────────── */
.conference-card__title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}
.conference-card__title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--color-text-primary);
  margin: 0;
  flex: 1;
  min-width: 0;
}
.conference-card__title-row .badge { flex-shrink: 0; margin-top: 2px; }
.conference-card__title a {
  color: inherit;
  text-decoration: none;
}
.conference-card__title a:hover {
  color: var(--color-primary-500);
}

/* ── Meta Row ────────────────────────────────────────────── */
.conference-card__meta {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.conference-card__meta-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.conference-card__meta-item svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--color-text-tertiary);
}

/* ── Deadline ────────────────────────────────────────────── */
.conference-card__deadline {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-warning);
  font-weight: 500;
}
.conference-card__deadline--urgent {
  color: var(--color-danger);
}

/* ── Topic Tags ──────────────────────────────────────────── */
.conference-card__tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 4px;
}
.conference-card__tag {
  display: inline-block;
  flex: 0 0 auto;
  width: fit-content;
  max-width: 100%;
  padding: 3px 10px;
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-full);
  text-decoration: none;
  white-space: nowrap;
}
.conference-card__tag:hover {
  filter: brightness(0.95);
}
.conference-card__tag--blue {
  color: var(--tag-blue);
  background: var(--tag-blue-bg);
  border-color: var(--tag-blue-border);
}
.conference-card__tag--green {
  color: var(--tag-green);
  background: var(--tag-green-bg);
  border-color: var(--tag-green-border);
}
.conference-card__tag--orange {
  color: var(--tag-orange);
  background: var(--tag-orange-bg);
  border-color: var(--tag-orange-border);
}
.conference-card__tag--purple {
  color: var(--tag-purple);
  background: var(--tag-purple-bg);
  border-color: var(--tag-purple-border);
}

/* ── Compact Variant (no cover image) ────────────────────── */
.conference-card--compact {
  grid-template-columns: 1fr;
  gap: 12px;
  padding: 16px;
}
.conference-card--compact .conference-card__title {
  font-size: 1rem;
}

/* ── Mobile ──────────────────────────────────────────────── */
@media (max-width: 640px) {
  .conference-card {
    grid-template-columns: 1fr;
  }
  .conference-card__cover {
    width: 100%;
    aspect-ratio: 16 / 9;
    min-height: auto;
  }
  .conference-card__body {
    padding: 16px;
  }
}

/* === filter-panel.css (216 lines) === */
/* Filter sidebar — desktop sticky / mobile collapsible */

.filter-panel {
  width: 100%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-xs);
}

.filter-panel__title {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
  letter-spacing: -0.01em;
}

.filter-panel__search {
  position: relative;
  margin-bottom: var(--space-md);
}

.filter-panel__search input {
  width: 100%;
  height: 42px;
  padding: 0 40px 0 14px;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--color-text-primary);
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.filter-panel__search input::placeholder {
  color: var(--color-text-tertiary);
}

.filter-panel__search input:focus {
  border-color: var(--color-primary-300);
  box-shadow: 0 0 0 3px rgba(34, 114, 229, 0.1);
  background: var(--color-surface);
}

.filter-panel__search svg {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--color-text-tertiary);
  pointer-events: none;
}

.filter-section {
  padding: var(--space-md) 0;
  border-top: 1px solid var(--color-border-light);
}

.filter-section__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
  padding: 2px 0;
}

.filter-section__title {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-text-primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.filter-section__chevron {
  width: 14px;
  height: 14px;
  color: var(--color-text-tertiary);
  transition: transform var(--transition-fast);
}

.filter-section__header[aria-expanded="false"] .filter-section__chevron {
  transform: rotate(-90deg);
}

.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-top: var(--space-sm);
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 0;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.checkbox-item:hover {
  color: var(--color-text-primary);
}

.checkbox-item input[type="checkbox"] {
  width: 17px;
  height: 17px;
  border-radius: 4px;
  border: 1.5px solid var(--color-border);
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  flex-shrink: 0;
  position: relative;
  background: var(--color-surface);
  transition: all var(--transition-fast);
}

.checkbox-item input[type="checkbox"]:checked {
  background: var(--color-primary-500);
  border-color: var(--color-primary-500);
}

.checkbox-item input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 2px;
  width: 4px;
  height: 8px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.checkbox-item--ei input:checked { background: var(--badge-ei); border-color: var(--badge-ei); }
.checkbox-item--scopus input:checked { background: var(--badge-scopus); border-color: var(--badge-scopus); }
.checkbox-item--ieee input:checked { background: var(--badge-ieee); border-color: var(--badge-ieee); }
.checkbox-item--cpci input:checked { background: var(--badge-cpci); border-color: var(--badge-cpci); }

.filter-panel__reset {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border-light);
}

.filter-panel__close {
  display: none;
}
@media (max-width: 1023px) {
  .filter-panel__close {
    display: flex;
    position: absolute;
    top: 14px;
    right: 14px;
    width: 32px;
    height: 32px;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-tertiary);
    border-radius: 50%;
    transition: background var(--transition-fast);
    padding: 0;
  }
  .filter-panel__close:hover { background: var(--color-bg); }
  .filter-panel__close svg { width: 22px; height: 22px; }
  .filter-panel__title { padding-right: 40px; }
}

.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-sm);
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary-600);
  background: var(--color-primary-50);
  border: 1px solid var(--color-primary-100);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.filter-chip:hover {
  background: var(--color-primary-100);
}

.filter-chip svg {
  width: 12px;
  height: 12px;
}

/* 搜索建议样式 */
.search-suggestions {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  box-shadow: var(--shadow-sm);
  z-index: 100;
  max-height: 200px;
  overflow-y: auto;
}

.search-suggestion-item {
  padding: 8px 14px;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.search-suggestion-item:hover {
  background: var(--color-surface-alt);
  color: var(--color-text-primary);
}

/* === home.css (600 lines) === */
/* Homepage — 纯图 Banner + 蓝白高级风 */

.hero-banner {
  --hero-banner-w: 1440;
  --hero-banner-h: 525;
  --hero-slide-w: 1440px;
  --hero-slide-gap: 20px;
  position: relative;
  width: 100%;
  height: clamp(180px, calc(100vw * var(--hero-banner-h) / var(--hero-banner-w)), 525px);
  background: var(--color-primary-50);
  overflow: hidden;
}

.hero-banner--empty {
  background:
    radial-gradient(ellipse 80% 120% at 100% 0%, rgba(77, 148, 240, 0.35) 0%, transparent 55%),
    radial-gradient(ellipse 70% 100% at 0% 100%, rgba(19, 64, 116, 0.4) 0%, transparent 50%),
    linear-gradient(135deg, var(--color-primary-900) 0%, var(--color-primary-700) 42%, var(--color-primary-500) 100%);
}

.hero-banner__viewport {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.hero-banner__track {
  display: flex;
  align-items: stretch;
  height: 100%;
  gap: var(--hero-slide-gap);
  transition: transform 0.42s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
}

.hero-banner__slide {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  display: block;
  text-decoration: none;
  overflow: hidden;
  border-radius: 6px;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  opacity: 1;
  filter: none;
}

/* 宽屏 peek：侧图静态变暗，不参与过渡（避免与轨道滑动打架） */
@media (min-width: 960px) {
  .hero-banner__slide:not(.is-active) {
    opacity: 0.58;
    filter: brightness(0.94);
  }

  .hero-banner__slide.is-active {
    opacity: 1;
    filter: none;
  }
}

.hero-banner__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

@media (min-width: 960px) {
  .hero-banner__slide {
    flex: 0 0 min(var(--hero-slide-w), 100%);
    width: min(var(--hero-slide-w), 100%);
    max-width: var(--hero-slide-w);
  }
}

.hero-banner__controls {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 2;
}

.hero-banner__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.hero-banner__dot.active {
  width: 28px;
  border-radius: var(--radius-full);
  background: #fff;
}

.hero-banner__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 50%;
  background: rgba(10, 22, 40, 0.35);
  backdrop-filter: blur(6px);
  color: #fff;
  cursor: pointer;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
}

.hero-banner__arrow:hover { background: rgba(10, 22, 40, 0.55); }
.hero-banner__arrow--prev { left: 16px; }
.hero-banner__arrow--next { right: 16px; }
.hero-banner__arrow svg { width: 20px; height: 20px; }

/* 宽屏：箭头落在 1440 主图区域内，而非整页最左右 */
@media (min-width: 960px) {
  .hero-banner__arrow--prev {
    left: max(16px, calc(50% - 720px + 16px));
  }
  .hero-banner__arrow--next {
    right: max(16px, calc(50% - 720px + 16px));
  }
}

/* 分类条 */
.category-ribbon {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border-light);
  padding: 14px 0;
}

.category-ribbon__scroll {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  justify-content: center;
  flex-wrap: wrap;
}

.category-ribbon__scroll::-webkit-scrollbar { display: none; }

.category-pill {
  flex: 0 0 auto;
  width: fit-content;
  flex-shrink: 0;
  padding: 7px 16px;
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

.category-pill:hover {
  color: var(--color-primary-600);
  border-color: var(--color-primary-100);
  background: var(--color-primary-50);
}

/* 数据条 */
.stats-strip {
  background: var(--color-surface);
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.stats-strip__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.stat-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2xs);
  text-align: center;
}

.stat-block__num {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-primary-600);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum";
}

.stat-block__label {
  font-family: var(--font-ui);
  font-size: clamp(0.8125rem, 1.4vw, 0.9375rem);
  color: var(--color-text-secondary);
}

/* 会议卡片网格 */
.featured-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border-light);
}

.news-section {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.home-news__hero {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.home-news__lead {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}

.home-news__lead:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-100);
}

.home-news__lead-media {
  min-height: 200px;
  background: linear-gradient(145deg, var(--color-primary-700), var(--color-primary-900));
  position: relative;
  display: flex;
  align-items: flex-start;
  padding: 16px;
}

.home-news__cat {
  display: inline-block;
  padding: 4px 12px;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #fff;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: var(--radius-sm);
}

.home-news__cat--sm {
  color: var(--color-primary-600);
  background: var(--color-primary-50);
  border-color: var(--color-primary-100);
  align-self: flex-start;
}

.home-news__lead-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
}

.home-news__date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
}

.home-news__title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.home-news__summary {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.home-news__sides {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.home-news__side {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}

.home-news__side:hover {
  box-shadow: var(--shadow-sm);
  border-color: var(--color-primary-100);
}

.home-news__side-title {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.home-news__list {
  border-top: 2px solid var(--color-primary-900);
  padding-top: var(--space-md);
}

.home-news__row {
  display: grid;
  grid-template-columns: 90px 100px 1fr;
  gap: var(--space-md);
  align-items: center;
  padding: 12px var(--space-sm);
  margin: 0 calc(-1 * var(--space-sm));
  border-bottom: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: inherit;
  transition: background var(--transition-fast);
}

.home-news__row:hover {
  background: var(--color-primary-50);
}

.home-news__row-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
}

.home-news__row-cat {
  display: inline-block;
  padding: 4px 12px;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary-600);
  background: var(--color-primary-50);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-primary-100);
  justify-self: start;
  align-self: center;
}

.home-news__row-title {
  font-size: 0.9375rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.home-news__empty {
  text-align: center;
  color: var(--color-text-secondary);
  padding: var(--space-xl);
}

.recent-section {
  background: var(--color-surface);
}

.partners-section {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border-light);
}

.section-header--center {
  text-align: center;
  justify-content: center;
}

.section-header--center .section-desc {
  margin-left: auto;
  margin-right: auto;
}

.partners-block {
  margin-bottom: var(--space-2xl);
}

.partners-block:last-child {
  margin-bottom: 0;
}

.partners-block__title {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-border-light);
}

.partners-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--space-md);
}

.partners-wall--universities {
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
}

.partners-wall__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 76px;
  padding: 14px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  filter: grayscale(30%);
  cursor: default;
}

.partners-wall__item--publisher .partners-wall__name {
  display: none;
}

.partners-wall--publishers {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 12px;
  width: 100%;
  padding: 0;
}

.partners-wall--publishers .partners-wall__item {
  width: 100%;
  min-height: 80px;
  padding: 16px 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
}

.partners-wall--publishers .partners-wall__logo,
.partners-wall--publishers .swiper-slide img {
  max-width: 100%;
  max-height: 40px;
  object-fit: contain;
}

@media (max-width: 1024px) {
  .partners-wall--publishers {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 768px) {
  .partners-wall--publishers {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 400px) {
  .partners-wall--publishers {
    grid-template-columns: 1fr;
  }
}

.partners-wall__item--university .partners-wall__name {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-primary);
  text-align: center;
  line-height: 1.35;
}

.partners-wall__empty {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--color-text-tertiary);
  font-size: 0.875rem;
  padding: var(--space-lg);
}
.partners-wall__logo {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  margin-bottom: 2px;
}
.partners-wall__logo img,
.partners-wall__logo svg {
  max-height: 28px;
  max-width: 140px;
  width: auto;
  height: auto;
  display: block;
  filter: grayscale(15%);
  opacity: 0.92;
}
.partners-wall__logo .partner-fallback {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 0.8125rem;
  font-weight: 700;
  color: #fff;
  background: hsl(var(--hc, 210) 55% 45%);
}
.partners-wall__logo .partner-fallback--uni {
  width: 36px;
  height: 36px;
  font-size: 0.9375rem;
  border-radius: var(--radius-sm);
}
.partners-wall__item--university .partners-wall__logo img {
  max-height: 36px;
  border-radius: var(--radius-sm);
}

.conf-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.conf-grid--cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

.conf-grid__empty {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--color-text-secondary);
  padding: var(--space-2xl);
}

.conf-card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  box-shadow: var(--shadow-xs);
}

.conf-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-100);
}

.conf-card__media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: linear-gradient(145deg, var(--color-primary-600), var(--color-primary-900));
}

.conf-card__cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.conf-card__cover-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  background: linear-gradient(145deg, var(--color-primary-600), var(--color-primary-900));
}

.conf-card__badges {
  position: absolute;
  top: 10px;
  left: 10px;
  right: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: flex-start;
}

.conf-card__deadline {
  position: absolute;
  bottom: 10px;
  right: 10px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  color: #fff;
  background: rgba(10, 22, 40, 0.6);
  backdrop-filter: blur(4px);
  border-radius: var(--radius-full);
}

.conf-card__deadline--soon {
  background: var(--color-warning);
}

.conf-card__body {
  padding: 16px 18px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.conf-card__field {
  font-family: var(--font-ui);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  width: fit-content;
}

.conf-card__title {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.01em;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.conf-card__meta {
  margin-top: auto;
  padding-top: 8px;
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.conf-card__meta-row {
  display: flex;
  align-items: center;
  gap: 5px;
}

.conf-card__meta-row svg {
  width: 13px;
  height: 13px;
  opacity: 0.5;
  flex-shrink: 0;
}

.section-desc {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-top: var(--space-xs);
  max-width: 48ch;
}

.page-section { padding: var(--space-3xl) 0; }

@media (max-width: 1199px) {
  .conf-grid--cols-4 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1023px) {
  .conf-grid,
  .conf-grid--cols-4 { grid-template-columns: repeat(2, 1fr); }
  .stats-strip__grid { grid-template-columns: repeat(2, 1fr); }
  .category-ribbon__scroll { justify-content: flex-start; }
  .home-news__hero { grid-template-columns: 1fr; }
  .home-news__lead { grid-template-columns: 1fr; }
  .home-news__lead-media { min-height: 140px; }
}

@media (max-width: 639px) {
  .conf-grid,
  .conf-grid--cols-4 { grid-template-columns: 1fr; }
  .hero-banner { height: clamp(160px, calc(100vw * 525 / 1440), 280px); }
  .hero-banner__track { gap: 0; }
  .hero-banner__slide,
  .hero-banner__slide.is-active {
    opacity: 1;
    filter: none;
    border-radius: 0;
  }
  .hero-banner__arrow { display: none; }
  .home-news__row { grid-template-columns: 1fr; gap: 4px; }
  .page-header__title { font-size: 1.5rem; }
  .page-section { padding: var(--space-xl) 0; }
  .container { padding-left: 16px; padding-right: 16px; }
  /* stats 移动端降级：数字与标签随屏收缩 */
  .stat-block__num { font-size: clamp(1.625rem, 7.5vw, 2.25rem); }
  .stat-block__label { font-size: 0.8125rem; }
  /* overflow guards */
  td, th { word-break: break-word; }
  .conf-card__title,
  td strong { overflow-wrap: anywhere; }
}

/* === 通用工具类（P3-2 收敛 inline style） === */
.is-disabled { opacity: .35; pointer-events: none; }
.pager-ellipsis { border: none; background: none; cursor: default; }
.empty-hint { text-align: center; padding: var(--space-2xl) 0; color: var(--color-text-tertiary); }
.empty-hint--lg { padding: var(--space-3xl) 0; }

/* 404 / 未找到 */
.not-found { padding: var(--space-4xl) 0; text-align: center; }
.not-found__title { font-family: var(--font-heading); font-size: 2rem; margin-bottom: var(--space-md); }
.not-found__text { color: var(--color-text-secondary); margin-bottom: var(--space-lg); }
.not-found__actions { display: flex; gap: var(--space-md); justify-content: center; flex-wrap: wrap; }

/* 列表页加载 / 空态 */
.list-loading { grid-column: 1 / -1; text-align: center; padding: 64px 24px; color: var(--color-text-tertiary); }
.list-loading__spinner { display: inline-block; width: 32px; height: 32px; border: 3px solid var(--color-border); border-top-color: var(--color-primary-500); border-radius: 50%; animation: list-spin .8s linear infinite; }
.list-loading__msg { margin-top: 12px; }
.results-empty { text-align: center; padding: 64px 24px; color: var(--color-text-secondary); background: var(--color-surface); border: 1px solid var(--color-border-light); border-radius: var(--radius-lg); }

/* === list.css (117 lines) === */
/* Conference list page */

.page-header {
  padding: var(--space-2xl) 0 var(--space-xl);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border-light);
}

.page-header__title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2xs);
}

.page-header__count {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
}

.page-header__count strong {
  color: var(--color-primary-600);
  font-weight: 700;
}

.list-layout {
  display: grid;
  grid-template-columns: var(--filter-panel-width) minmax(0, 1fr);
  gap: var(--space-xl);
  padding: var(--space-xl) 0 var(--space-3xl);
  align-items: start;
}

.results-area {
  min-width: 0;
}

.results-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border-light);
  flex-wrap: wrap;
}

.results-toolbar__date {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

.results-toolbar__date-label {
  font-weight: 500;
}

.results-toolbar__date-sep {
  color: var(--color-text-tertiary);
}

.results-toolbar__date-input {
  height: 36px;
  padding: 0 10px;
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  background: var(--color-surface);
  outline: none;
  transition: border-color var(--transition-fast);
}

.results-toolbar__date-input:focus {
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 2px var(--color-primary-50);
}

@media (max-width: 639px) {
  .results-toolbar__date { flex-wrap: wrap; }
  .results-toolbar__date-input { flex: 1; min-width: 120px; }
}

.results-toolbar__count {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
}

.results-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

/* ── List pagination ── */
.list-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border-light);
}
.list-pagination__bar {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}
.list-pagination__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  padding: 0 10px;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  user-select: none;
}
.list-pagination__btn:hover {
  color: var(--color-primary-600);
  border-color: var(--color-primary-200);
  background: var(--color-primary-50);
}
.list-pagination__btn:link,
.list-pagination__btn:visited {
  color: var(--color-text-secondary);
  text-decoration: none;
}
.list-pagination__btn--active {
  background: var(--color-primary-600);
  color: #fff;
  border-color: var(--color-primary-600);
  pointer-events: none;
}
.list-pagination__ell {
  padding: 0 6px;
  color: var(--color-text-tertiary);
  font-weight: 600;
}
.list-pagination__jump {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.list-pagination__jump-label {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
}
.list-pagination__jump-input {
  width: 56px;
  padding: 6px 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-family: inherit;
  text-align: center;
  outline: none;
  transition: border-color var(--transition-fast);
  background: var(--color-surface);
}
.list-pagination__jump-input:focus {
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 2px var(--color-primary-50);
}
@media (max-width: 639px) {
  .list-pagination {
    flex-direction: column;
    gap: 10px;
  }
  .list-pagination__bar { gap: 3px; }
  .list-pagination__btn { min-width: 32px; height: 32px; font-size: 0.8125rem; }
}

.list-filter-toggle {
  display: none;
}

/* Floating filter FAB (mobile only) */
.filter-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 150;
  display: none;
  align-items: center;
  gap: 6px;
  padding: 12px 20px;
  background: var(--color-primary-500);
  color: #fff;
  border: none;
  border-radius: 100px;
  font-family: var(--font-ui);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(34, 114, 229, 0.4), 0 2px 6px rgba(0, 0, 0, 0.15);
  transition: all var(--transition-base);
}
.filter-fab:hover {
  background: var(--color-primary-600);
  box-shadow: 0 6px 24px rgba(34, 114, 229, 0.5), 0 2px 8px rgba(0, 0, 0, 0.2);
  transform: translateY(-2px);
}
.filter-fab:active { transform: translateY(0); }
.filter-fab svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}
.fab-label { font-size: 0.9375rem; }

.filter-panel-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 110;
  background: rgba(10, 22, 40, 0.5);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}
.filter-panel-overlay.active { display: block; }

@media (max-width: 1023px) {
  .list-layout {
    grid-template-columns: 1fr;
  }

  .list-filter-toggle {
    display: inline-flex;
  }

  .filter-fab { display: inline-flex; }

  .filter-panel {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(85vw, 360px);
    max-width: 100%;
    border-radius: 0;
    border: none;
    box-shadow: var(--shadow-xl);
    z-index: 120;
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
  }

  .filter-panel.is-open {
    display: block;
    transform: translateX(0);
    margin-bottom: 0;
  }
}

@media (min-width: 1024px) {
  .filter-panel {
    position: sticky;
    top: calc(var(--header-height) + var(--space-lg));
    max-height: calc(100vh - var(--header-height) - var(--space-2xl));
    overflow-y: auto;
    scrollbar-width: thin;
  }
}

/* === detail 相关样式已收敛至 detail-page.css（避免与 main.css 重复定义） === */

/* === news.css (454 lines) === */
/* News pages — newspaper editorial layout */

.news-masthead {
  padding: var(--space-3xl) 0 var(--space-2xl);
  background: linear-gradient(180deg, #0c1e3d 0%, #134074 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.news-masthead::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 80% 40%, rgba(77,148,240,0.18) 0%, transparent 60%);
  pointer-events: none;
}
.news-masthead__inner {
  position: relative;
  z-index: 1;
}
.news-masthead__label {
  font-family: var(--font-ui);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
}
.news-masthead__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: #fff;
  margin: var(--space-sm) 0;
}
.news-masthead__date {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
}
.news-masthead__inner {
  text-align: center;
}
.news-masthead__label {
  margin-bottom: 8px;
}
.news-masthead__title {
  margin-bottom: 6px;
}

.news-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: var(--space-xl);
}

.category-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.category-tab {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
}
.category-tab:link,
.category-tab:visited {
  color: var(--color-text-secondary);
  text-decoration: none;
}

.category-tab:hover {
  color: var(--color-primary-600);
  border-color: var(--color-primary-200);
}

.category-tab.active {
  background: var(--color-primary-600);
  color: #fff;
  border-color: var(--color-primary-600);
}

/* Featured: 1 large + 2 small */
.news-featured {
  display: grid;
  grid-template-columns: 1.55fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--color-border);
}

.news-featured__main {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}

.news-featured__main:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-100);
}

.news-featured__main-media {
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--color-primary-600), var(--color-primary-900));
  position: relative;
  display: flex;
  align-items: flex-end;
  padding: 20px;
}
/* 无封面时的分类色块占位（比纯灰更有编辑感） */
.news-featured__main-media--empty {
  background:
    radial-gradient(circle at 20% 20%, rgba(255,255,255,0.18), transparent 45%),
    linear-gradient(135deg, var(--color-primary-500, #4f46e5), var(--color-primary-900, #1e1b4b));
}
.news-featured__main-media--empty .news-featured__main-tag {
  font-size: 0.8125rem;
}

.news-featured__main-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,22,40,0.5), transparent 60%);
}

.news-featured__main-tag {
  position: relative;
  z-index: 1;
  padding: 4px 12px;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #fff;
  background: rgba(255,255,255,0.2);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--radius-sm);
}

.news-featured__main-body {
  padding: 24px 28px 28px;
}

.news-featured__main-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
  margin-bottom: 10px;
  display: block;
}

.news-featured__main-title {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2vw, 1.625rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}

.news-featured__main-summary {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-featured__side {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.news-featured__sub {
  flex: 1;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}

.news-featured__sub:hover {
  border-color: var(--color-primary-200);
  box-shadow: var(--shadow-sm);
}

.news-featured__sub-media {
  position: relative;
  aspect-ratio: 16 / 9;
  width: 100%;
  background-size: cover;
  background-position: center;
  background-color: var(--color-surface-alt);
  display: flex;
  align-items: flex-end;
  padding: 12px;
}

.news-featured__sub-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 22, 40, 0.35), transparent 55%);
  pointer-events: none;
}

.news-featured__sub-media .news-featured__main-tag {
  position: relative;
  z-index: 1;
}

.news-featured__sub-body {
  padding: 14px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.news-featured__sub-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-featured__sub-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
}

/* List section */
.news-list-section__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-primary-900);
}

.news-list-section__head h2 {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.news-list-section__count {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
}

.news-list {
  margin-bottom: var(--space-2xl);
}

.news-list__item {
  display: grid;
  grid-template-columns: 100px 110px 1fr auto;
  gap: var(--space-md);
  align-items: center;
  padding: 16px var(--space-sm);
  margin: 0 calc(-1 * var(--space-sm));
  border-bottom: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: inherit;
  transition: background var(--transition-fast);
}

.news-list__item:hover {
  background: var(--color-primary-50);
}

.news-list__date {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
}

.news-list__cat {
  display: inline-block;
  padding: 4px 12px;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary-600);
  background: var(--color-primary-50);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-primary-100);
  justify-self: start;
  align-self: center;
}

.news-list__title {
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.4;
}

.news-list__arrow {
  display: inline-flex;
  align-items: center;
  color: var(--color-text-tertiary);
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.news-list__arrow .icon-chevron { display: block; }

.news-list__item:hover .news-list__arrow { opacity: 1; }

/* Pagination */
.news-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: var(--space-xl);
  padding-bottom: var(--space-3xl);
}

.news-pagination__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 10px;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}
.news-pagination__btn:link,
.news-pagination__btn:visited {
  color: var(--color-text-secondary);
  text-decoration: none;
}

.news-pagination__btn:hover:not(.active) {
  color: var(--color-primary-600);
  border-color: var(--color-primary-200);
  background: #f8fafc;
  text-decoration: none;
}

.news-pagination__btn.active {
  background: var(--color-primary-600);
  color: #fff;
  border-color: var(--color-primary-600);
  pointer-events: none;
}

.news-pagination__btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.news-pagination__info {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  margin: 0 8px;
  text-decoration: none;
}
.news-pagination__info a { text-decoration: none; }
.news-pagination__jump {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-left: 12px;
}
.news-pagination__jump-label {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
}
.news-pagination__jump-input {
  width: 52px;
  padding: 5px 6px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-family: inherit;
  text-align: center;
  outline: none;
  transition: border-color var(--transition-fast);
  background: var(--color-surface);
}
.news-pagination__jump-input:focus {
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 2px var(--color-primary-50);
}

.empty-state {
  text-align: center;
  padding: var(--space-4xl) 0;
  color: var(--color-text-tertiary);
}

.empty-state svg {
  width: 48px;
  height: 48px;
  opacity: 0.25;
  margin-bottom: var(--space-md);
}

/* Detail page */
.news-detail-breadcrumb {
  padding: var(--space-md) 0;
  margin-bottom: var(--space-xl);
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  border-bottom: 1px solid var(--color-border-light);
  overflow: hidden;
}

.news-detail-breadcrumb a {
  color: var(--color-text-secondary);
  text-decoration: none;
}

.news-detail-breadcrumb a:hover { color: var(--color-primary-600); }

.news-detail-breadcrumb span { color: var(--color-text-tertiary); }

.news-detail-breadcrumb .breadcrumb-current {
  color: var(--color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 50%;
  display: inline-block;
  vertical-align: bottom;
}

/* 资讯详情布局 */
.news-detail-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: var(--space-2xl);
  align-items: start;
}
.news-detail-main {
  min-width: 0;
}
.news-article {
  padding: var(--space-2xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xs);
}

.news-article__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: var(--space-md);
}

.news-article__cat {
  padding: 4px 12px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary-600);
  background: var(--color-primary-50);
  border-radius: var(--radius-sm);
}

.news-article__date {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
}

.news-article__title {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2.125rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border-light);
}

.news-article__summary {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
}

.news-article__body {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-text-primary);
}

.news-article__body > *:first-child { margin-top: 0; }
.news-article__body > *:last-child { margin-bottom: 0; }
.news-article__body p {
  margin: 0 0 1em;
}
.news-article__body h2,
.news-article__body h3,
.news-article__body h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 1.35em 0 0.65em;
  line-height: 1.35;
}
.news-article__body h2 { font-size: 1.25rem; }
.news-article__body h3 { font-size: 1.125rem; }
.news-article__body h4 { font-size: 1rem; }
.news-article__body ul,
.news-article__body ol {
  margin: 0 0 1em;
  padding-left: 1.4em;
}
.news-article__body li {
  margin-bottom: 0.4em;
  padding-left: 0.15em;
}
.news-article__body li:last-child { margin-bottom: 0; }
.news-article__body strong { font-weight: 600; }
.news-article__body a {
  color: var(--color-primary, #2563eb);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.news-article__body blockquote {
  margin: 0 0 1em;
  padding: 0.75em 1em;
  border-left: 3px solid var(--color-primary, #2563eb);
  background: var(--color-primary-50, #f0f5ff);
  color: var(--color-text-secondary);
}
.news-article__body code {
  font-size: 0.9em;
  padding: 0.1em 0.35em;
  border-radius: 4px;
  background: var(--color-bg-muted, #f3f4f6);
}
.news-article__body table {
  width: 100%;
  max-width: 100%;
  margin: 0.75em 0 1.25em;
  display: table;
  border-collapse: collapse;
  font-size: 0.9375rem;
  line-height: 1.5;
}
.news-article__body thead th {
  background: var(--color-primary-50, #f0f5ff);
  color: var(--color-text-primary);
  font-weight: 600;
  text-align: left;
  padding: 0.65em 0.85em;
  border-bottom: 2px solid var(--color-border, #e5e7eb);
  white-space: nowrap;
}
.news-article__body tbody td {
  padding: 0.6em 0.85em;
  border-bottom: 1px solid var(--color-border-light, #f0f0f0);
  vertical-align: top;
}
.news-article__body tbody tr:hover td {
  background: var(--color-primary-50, #f8faff);
}
.news-article__body tbody tr:last-child td {
  border-bottom: none;
}
@media (max-width: 767px) {
  .news-article__body table {
    display: block;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}





@media (max-width: 1023px) {
  .news-featured { grid-template-columns: 1fr; }
  .news-list__item { grid-template-columns: 1fr; gap: 4px; }
  .news-list__arrow { display: none; }
}

/* 上一篇/下一篇 */
.news-nav {
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-2xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--color-border-light);
}
.news-nav__title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}
.news-nav__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}
.news-card-prev,
.news-card-next {
  display: block;
  padding: var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-base);
}
.news-card-prev:hover,
.news-card-next:hover {
  border-color: var(--color-primary-100);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}
.news-card--empty {
  background: transparent;
  border-style: dashed;
  pointer-events: none;
}
.news-card__direction {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-tertiary);
  margin-bottom: 6px;
  letter-spacing: 0.04em;
  font-family: var(--font-ui);
}
.news-card-next .news-card__direction { color: var(--color-primary-600); }
.news-card__inner {
  display: flex;
  gap: 12px;
  align-items: center;
}
.news-card__inner img {
  width: 80px;
  height: 56px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}
.news-card__info {
  flex: 1;
  min-width: 0;
}
.news-card__info strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card--empty .news-card__inner { display: none; }
.news-card__info time {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.6875rem;
  color: var(--color-text-tertiary);
  margin-top: 2px;
}
.news-card__info--full { flex: 1; }

/* 侧边栏 */
.news-sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--space-lg));
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  padding-bottom: var(--space-2xl);
}
.news-widget {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-xs);
}
.news-widget__title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-border-light);
}
.news-widget__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.news-widget__item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border-light);
  text-decoration: none;
  color: inherit;
  transition: padding var(--transition-fast);
}
.news-widget__item:last-child { border-bottom: none; }
.news-widget__item:hover { padding-left: 4px; }
.news-widget__item-cat {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--color-primary-600);
}
.news-widget__item-title {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-widget__item-date {
  font-size: 0.6875rem;
  color: var(--color-text-tertiary);
}
.news-widget__conf-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.news-widget__conf-item {
  display: flex;
  gap: 10px;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border-light);
  text-decoration: none;
  color: inherit;
  transition: padding var(--transition-fast);
}
.news-widget__conf-item:last-child { border-bottom: none; }
.news-widget__conf-item:hover { padding-left: 4px; }
.news-widget__conf-cover {
  width: 96px;
  height: 54px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--color-surface-alt);
}
.news-widget__conf-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.news-widget__conf-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary-600), var(--color-primary-900));
  color: rgba(255,255,255,0.5);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}
.news-widget__conf-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.news-widget__conf-info strong {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-widget__conf-info span {
  font-size: 0.6875rem;
  color: var(--color-text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-widget__conf-info time {
  font-size: 0.6875rem;
  color: var(--color-text-tertiary);
}
@media (max-width: 900px) {
  .news-detail-layout { grid-template-columns: 1fr; }
  .news-sidebar { position: static; }
}
@media (max-width: 639px) {
  .news-nav__row { grid-template-columns: 1fr; }
  .news-toolbar { flex-direction: column; align-items: flex-start; }
  .news-featured__sub-body { padding: 12px 14px 14px; }
}

/* 关于我们 - 合作伙伴Logo */
.partner-logos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 0;
  width: 100%;
}

.partner-logos--uni {
  margin-top: 20px;
}

.partner-logos__item {
  display: flex;
  align-items: center;
  justify-content: center;
}

.partner-logo-img {
  height: 40px;
  width: auto;
  max-width: 120px;
  object-fit: contain;
  filter: grayscale(30%);
  opacity: 0.85;
}

.partner-subtitle {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-top: 32px;
  margin-bottom: 8px;
}

/* 合作院校轮播 - 仿 zenread.com.cn */
.zr-badges-marquee {
  width: 100%;
  margin-top: 32px;
  overflow: hidden;
}

.zr-css-marquee {
  --zr-marquee-gap: 36px;
  overflow: hidden;
  position: relative;
  mask-image: linear-gradient(90deg, transparent 0%, #000 3%, #000 97%, transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 3%, #000 97%, transparent 100%);
}

.zr-css-marquee__track {
  display: flex;
  align-items: center;
  gap: var(--zr-marquee-gap);
  animation: zrMarqueeScroll var(--zr-marquee-duration, 60s) linear infinite;
  width: max-content;
  will-change: transform;
}

.zr-css-marquee .swiper-slide {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  opacity: 1;
}

.zr-css-marquee .swiper-slide img {
  height: 100px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
}

/* 静态模式（prefers-reduced-motion） */
.zr-marquee--static .zr-css-marquee__track {
  animation: none;
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
}
@media (prefers-reduced-motion: reduce) {
  .zr-css-marquee__track { animation: none; }
}

@keyframes zrMarqueeScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(var(--zr-marquee-distance, -50%)); }
}

@keyframes list-spin { to { transform: rotate(360deg); } }

@media (max-width: 768px) {
  .zr-css-marquee .swiper-slide {
    padding: 0 12px;
  }
  .zr-css-marquee .swiper-slide img {
    height: 70px;
  }
}

@media (max-width: 480px) {
  .zr-css-marquee {
    --zr-marquee-gap: 24px;
  }
  .zr-css-marquee .swiper-slide {
    padding: 0 8px;
  }
  .zr-css-marquee .swiper-slide img {
    height: 50px;
  }
}

/* 轮播调试 - 确保可见 */
.zr-css-marquee__track {
  min-height: 50px;
}

.zr-css-marquee .swiper-slide {
  min-width: 80px;
}