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

:root {
  --primary: #c44536;
  --primary-dark: #a3362a;
  --secondary: #6b705c;
  --text: #1a1a1a;
  --text-light: #5c5c5c;
  --muted: #8a8a7a;
  --bg: #f5f1e8;
  --bg-soft: #ece6d9;
  --bg-alt: #e8e0d0;
  --border: #d4cbb8;
  --success: #6b705c;
  --warning: #d4a03c;
  --danger: #c44536;
  --max-width: 1340px;
  --radius: 4px;
  --radius-lg: 6px;
  --shadow-sm: 0 1px 4px rgba(26,26,26,0.06);
  --shadow: 0 6px 20px rgba(26,26,26,0.07);
  --shadow-lg: 0 16px 48px rgba(26,26,26,0.10);
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #f5f1e8 0%, #ede7db 50%, #f5f1e8 100%);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 60px; }

a { color: var(--primary); text-decoration: none; transition: color .45s cubic-bezier(0.25, 0.8, 0.25, 1); }
a:hover { color: var(--primary-dark); }

img { max-width: 100%; height: auto; display: block; }

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, #c44536 0%, #d4a03c 40%, #6b705c 70%, #c44536 100%);
  z-index: 1001;
  transition: width 0.1s;
}

.site-header {
  background: linear-gradient(180deg, #faf7f0 0%, #f5f1e8 100%);
  border-bottom: 2px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(26,26,26,0.04);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding: 18px 60px;
  max-width: var(--max-width);
  margin: 0 auto;
}
.site-logo img { height: 40px; width: auto; }

.main-nav { display: flex; gap: 36px; flex: 1; justify-content: flex-start; }
.main-nav a { color: var(--text); font-weight: 500; padding: 6px 0; position: relative; }
.main-nav a:hover { color: var(--primary); }
.main-nav a:hover::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.header-search { display: flex; gap: 6px; }
.header-search input {
  padding: 10px 18px;
  border: 1px solid var(--border);
  border-radius: 2px;
  width: 200px;
  font-size: 14px;
}
.header-search input:focus { outline: 2px solid var(--primary); outline-offset: -1px; }
.header-search button {
  padding: 10px 20px;
  background: linear-gradient(135deg, var(--primary) 0%, #a3362a 100%);
  color: #faf7f0;
  border: 0;
  border-radius: 2px;
  cursor: pointer;
  font-size: 14px;
}
.header-search button:hover { background: linear-gradient(135deg, #a3362a 0%, #8b2d22 100%); }

.hamburger-btn {
  display: none;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 4px;
}
.hamburger-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: all 0.45s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.hamburger-btn.is-active span:nth-child(1) { transform: rotate(45deg) translate(6px, 6px); }
.hamburger-btn.is-active span:nth-child(2) { opacity: 0; }
.hamburger-btn.is-active span:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }

.mobile-menu-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(26,26,26,0.45);
  z-index: 999;
  opacity: 0;
  transition: opacity 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.mobile-menu-overlay.is-open { display: block; opacity: 1; }

.mobile-menu {
  position: fixed;
  top: 0;
  right: -320px;
  width: 320px;
  max-width: 85vw;
  height: 100vh;
  background: linear-gradient(180deg, #faf7f0 0%, #f5f1e8 100%);
  z-index: 1000;
  overflow-y: auto;
  transition: right 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
  padding: 28px;
}
.mobile-menu.is-open { right: 0; }

.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--border);
}
.mobile-close {
  background: none;
  border: 0;
  font-size: 24px;
  cursor: pointer;
  padding: 4px 8px;
  color: var(--text-light);
}

.mobile-search { display: flex; gap: 6px; margin-bottom: 28px; }
.mobile-search input {
  flex: 1;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 2px;
}
.mobile-search button {
  padding: 12px 18px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: #faf7f0;
  border: 0;
  border-radius: 2px;
  cursor: pointer;
}

.mobile-nav-list { list-style: none; padding: 0; margin: 0 0 28px; }
.mobile-nav-list li { border-bottom: 1px solid var(--border); }
.mobile-nav-list a {
  display: block;
  padding: 16px 4px;
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
}
.mobile-nav-list a:hover { color: var(--primary); padding-left: 12px; }

.mobile-section-title {
  font-size: 13px;
  color: var(--text-light);
  font-weight: 600;
  margin: 24px 0 10px;
  text-transform: uppercase;
}

.mobile-socials { display: flex; flex-wrap: wrap; gap: 12px; }
.mobile-socials a {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--bg-soft) 0%, var(--bg-alt) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-size: 18px;
}
.mobile-socials a:hover { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); color: #faf7f0; }

.hero {
  background: linear-gradient(160deg, #1a1a1a 0%, #2d2a26 30%, #c44536 70%, #d4a03c 100%);
  color: #faf7f0;
  padding: 100px 60px 90px;
  text-align: left;
  position: relative;
}
.hero-with-image { background-size: cover; background-position: center; }

.hero-badge {
  display: inline-block;
  padding: 5px 18px;
  background: linear-gradient(90deg, rgba(255,255,255,0.12) 0%, rgba(255,255,255,0.06) 100%);
  border-radius: 2px;
  font-size: 14px;
  margin-bottom: 20px;
  backdrop-filter: blur(10px);
}

.hero h1, .hero-title {
  font-size: 44px;
  margin-bottom: 20px;
  line-height: 1.3;
  font-weight: 700;
  color: #faf7f0;
}
.h1-keyword {
  display: block;
  font-size: 0.5em;
  font-weight: 400;
  margin-top: 8px;
  opacity: 0.95;
}

.hero-desc {
  font-size: 18px;
  opacity: 0.95;
  max-width: 680px;
  margin: 0 0 30px;
  line-height: 1.7;
}
.hero-intro {
  font-size: 16px;
  opacity: 0.92;
  max-width: 680px;
  margin: 20px 0 30px;
  line-height: 1.8;
}

.hero-stats {
  list-style: none;
  display: flex;
  justify-content: flex-start;
  gap: 56px;
  margin: 36px 0;
  flex-wrap: wrap;
  padding: 0;
}
.hero-stats li, .hero-stats div {
  text-align: left;
  list-style: none;
}
.hero-stats strong {
  display: block;
  font-size: 36px;
  font-weight: 800;
}
.hero-stats span { font-size: 14px; opacity: 0.9; }

.hero-stat-item { text-align: left; }

.hero-badges {
  list-style: none;
  display: flex;
  justify-content: flex-start;
  gap: 14px;
  margin: 28px 0;
  flex-wrap: wrap;
  padding: 0;
}
.hero-badge-item {
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
  padding: 8px 18px;
  border-radius: 2px;
  font-size: 14px;
  backdrop-filter: blur(10px);
}

.hero-update {
  margin-top: 24px;
  font-size: 13px;
  opacity: 0.85;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: flex-start;
  flex-wrap: wrap;
  margin-top: 28px;
}

.btn {
  display: inline-block;
  padding: 14px 34px;
  border-radius: 2px;
  font-weight: 600;
  transition: all .5s cubic-bezier(0.25, 0.8, 0.25, 1);
  cursor: pointer;
  border: 0;
  font-size: 15px;
  text-align: center;
  text-decoration: none;
}
.btn-primary { background: linear-gradient(135deg, #faf7f0 0%, #ece6d9 100%); color: var(--primary); }
.btn-primary:hover { background: linear-gradient(135deg, #ece6d9 0%, #e0d8c8 100%); transform: translateY(-2px); color: var(--primary-dark); }
.hero-cta-section .btn-primary { background: linear-gradient(135deg, #faf7f0 0%, #ece6d9 100%); color: var(--primary); }

.btn-secondary, .btn-outline {
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
  color: #faf7f0;
  border: 1px solid rgba(255,255,255,0.35);
}
.btn-secondary:hover, .btn-outline:hover {
  background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, rgba(255,255,255,0.1) 100%);
  transform: translateY(-2px);
  color: #faf7f0;
}

.section .btn-primary { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); color: #faf7f0; }
.section .btn-primary:hover { background: linear-gradient(135deg, var(--primary-dark) 0%, #8b2d22 100%); color: #faf7f0; }

.section, section { padding: 80px 0; }
.section-header { text-align: left; margin-bottom: 56px; }
.section-header h2 { font-size: 32px; margin-bottom: 14px; color: var(--text); }
.section-header p {
  color: var(--text-light);
  font-size: 17px;
  max-width: 620px;
  margin: 0;
}

.breadcrumbs {
  background: linear-gradient(90deg, var(--bg-soft) 0%, var(--bg) 100%);
  padding: 16px 60px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.breadcrumbs > span:not(:last-child)::after {
  content: '›';
  margin: 0 10px;
  color: var(--muted);
}
.breadcrumbs a { color: var(--text-light); }
.breadcrumbs a:hover { color: var(--primary); }

.about-section { background: linear-gradient(180deg, var(--bg-soft) 0%, var(--bg) 100%); }
.about-content {
  max-width: 820px;
  margin: 0;
  font-size: 17px;
  line-height: 1.9;
}
.about-content .lead {
  font-size: 19px;
  color: var(--text);
  margin-bottom: 28px;
  padding: 28px 32px;
  background: linear-gradient(135deg, #faf7f0 0%, #f5f1e8 100%);
  border-left: 3px solid var(--primary);
  border-radius: 0;
}
.about-content p { margin-bottom: 20px; color: #3d3d3d; }

.section-about-brief { padding: 80px 0; }
.about-brief-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 64px;
  align-items: start;
  max-width: 1200px;
  margin: 0 auto;
}
.about-brief-text p { margin-bottom: 18px; color: #3d3d3d; }
.about-brief-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
.about-brief-stats .stat-item {
  background: linear-gradient(135deg, #faf7f0 0%, var(--bg-soft) 100%);
  padding: 28px 24px;
  border-radius: 2px;
  text-align: left;
  border-left: 3px solid var(--primary);
}

.section-featured { padding: 80px 0; }
.featured-grid {
  display: grid;
  grid-template-columns: 1fr 3fr 1fr;
  gap: 48px;
}
.featured-main {
  background: linear-gradient(180deg, #faf7f0 0%, #f5f1e8 100%);
  border-radius: 2px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(26,26,26,0.06);
  transition: all 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.featured-main:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(26,26,26,0.1);
}
.featured-main .thumb { display: block; aspect-ratio: 21/9; overflow: hidden; }
.featured-main .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.featured-main:hover .thumb img { transform: scale(1.03); }
.featured-main .body { padding: 32px 28px; }
.featured-main h3 { font-size: 22px; margin: 14px 0 12px; line-height: 1.4; }
.featured-main h3 a { color: var(--text); }
.featured-main h3 a:hover { color: var(--primary); }
.featured-main .excerpt {
  color: var(--text-light);
  font-size: 15px;
  margin-bottom: 16px;
  line-height: 1.6;
}
.featured-main .meta {
  display: flex;
  gap: 18px;
  font-size: 13px;
  color: var(--muted);
}

.featured-side {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.featured-side-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 16px;
  background: linear-gradient(135deg, #faf7f0 0%, #f5f1e8 100%);
  padding: 14px;
  border-radius: 2px;
  border: 1px solid var(--border);
  transition: all 0.45s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.featured-side-item:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 16px rgba(196,69,54,0.08);
}
.featured-side-item .thumb {
  display: block;
  aspect-ratio: 1/1;
  border-radius: 2px;
  overflow: hidden;
}
.featured-side-item .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.featured-side-item .body h4 {
  font-size: 14px;
  line-height: 1.4;
  margin-bottom: 6px;
}
.featured-side-item .body h4 a { color: var(--text); }
.featured-side-item .body h4 a:hover { color: var(--primary); }
.featured-side-item .body small {
  color: var(--muted);
  font-size: 12px;
}

.cat-tag {
  display: inline-block;
  padding: 3px 12px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #faf7f0 !important;
  font-size: 12px;
  border-radius: 0;
  margin-bottom: 10px;
  font-weight: 500;
}
.cat-tag:hover { background: linear-gradient(135deg, var(--primary-dark) 0%, #8b2d22 100%); color: #faf7f0 !important; }

.grid-sports {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}
.sport-card {
  background: linear-gradient(180deg, #faf7f0 0%, #f5f1e8 100%);
  padding: 36px 24px;
  border-radius: 2px;
  border: 1px solid var(--border);
  text-align: left;
  transition: all 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
  display: block;
  color: var(--text);
}
.sport-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(26,26,26,0.08);
  border-color: var(--primary);
  color: var(--text);
}
.sport-card .icon, .sport-card .icon-img {
  margin: 0 0 16px;
  font-size: 48px;
  display: block;
}
.sport-card h3 { font-size: 17px; margin-bottom: 8px; }
.sport-card p {
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 10px;
}
.sport-card .count, .sport-card small {
  color: var(--primary);
  font-weight: 600;
  font-size: 12px;
}

.grid-features, .features-grid, .services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 32px;
}
.feature-card, .service-card, .partner-card {
  background: linear-gradient(180deg, #faf7f0 0%, #f5f1e8 100%);
  padding: 40px 32px;
  border-radius: 2px;
  border: 1px solid var(--border);
  text-align: left;
  transition: all .5s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.feature-card:hover, .service-card:hover, .partner-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(26,26,26,0.08);
  border-color: var(--primary);
}
.feature-card .icon, .feature-card .icon-img,
.service-icon, .feature-icon {
  margin: 0 0 20px;
  font-size: 40px;
}
.feature-card h3, .service-card h3 {
  font-size: 20px;
  margin: 14px 0 10px;
  color: var(--text);
}
.feature-card p, .service-card p {
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.7;
}

.app-card { display: flex; flex-direction: column; align-items: flex-start; }
.app-feature-list {
  list-style: none;
  padding: 0;
  margin: 14px 0;
  text-align: left;
  width: 100%;
}
.app-feature-list li {
  padding: 8px 0;
  font-size: 13px;
  color: var(--text-light);
}

.grid-steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 32px;
  list-style: none;
  padding: 0;
}
.step-card {
  background: linear-gradient(160deg, #faf7f0 0%, #f5f1e8 60%, #ece6d9 100%);
  padding: 36px 28px;
  border-radius: 2px;
  border: 1px solid var(--border);
  text-align: left;
  position: relative;
}

.step-num {
  width: 52px;
  height: 52px;
  background: linear-gradient(180deg, #c44536 0%, #6b705c 100%);
  color: #f5f1e8;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 20px;
  margin: 0 0 20px;
}
.step-card h3 { font-size: 17px; margin-bottom: 10px; }
.step-card p { color: #6b705c; font-size: 14px; }

.step-body h3 { font-size: 18px; margin-bottom: 8px; }

.grid-stats {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
}
.stat-card {
  background: linear-gradient(170deg, #fffdf7 0%, #f5f1e8 100%);
  padding: 40px 28px;
  border-radius: 6px;
  border: 1px solid #d5cdb6;
  text-align: left;
  transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.stat-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(26, 26, 26, 0.1);
}
.stat-card .stat-num {
  display: block;
  font-size: 36px;
  font-weight: 800;
  color: #c44536;
  margin-bottom: 8px;
}
.stat-card .stat-label {
  font-size: 14px;
  color: #1a1a1a;
  font-weight: 500;
}

.section-stats {
  background: linear-gradient(160deg, #1a1a1a 0%, #3d2b1f 40%, #6b705c 100%);
  color: #f5f1e8;
}
.section-stats .section-header h2,
.section-stats .section-header p { color: #f5f1e8; }
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 3fr 1fr;
  gap: 48px;
}
.stat-item {
  text-align: left;
  padding: 36px 28px;
  background: linear-gradient(145deg, rgba(245, 241, 232, 0.08), rgba(196, 69, 54, 0.12));
  border-radius: 6px;
  backdrop-filter: blur(14px);
}
.stat-item .stat-num {
  display: block;
  font-size: 48px;
  font-weight: 800;
  margin-bottom: 10px;
  color: #f5f1e8;
}
.stat-item .stat-title {
  font-size: 18px;
  margin-bottom: 10px;
  color: #f5f1e8;
}
.stat-item .stat-desc { font-size: 14px; opacity: 0.85; }

.grid-partners {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}
.badge-card, .partner-card {
  background: linear-gradient(175deg, #fffdf7 0%, #f0ebe0 100%);
  padding: 32px 20px;
  border-radius: 6px;
  border: 1px solid #d5cdb6;
  text-align: center;
  transition: all 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.badge-card:hover, .partner-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 28px rgba(26, 26, 26, 0.12);
  border-color: #c44536;
}

.timeline {
  max-width: 720px;
  margin: 0 auto;
  position: relative;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, #c44536 0%, #6b705c 100%);
}
.timeline-item {
  padding: 24px 24px 24px 72px;
  position: relative;
  margin-bottom: 24px;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 34px;
  width: 18px;
  height: 18px;
  background: linear-gradient(135deg, #c44536, #8b2e20);
  border-radius: 50%;
  border: 3px solid #f5f1e8;
  box-shadow: 0 0 0 3px #c44536;
}
.timeline-item h3 {
  font-size: 18px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.timeline-item .year {
  background: linear-gradient(135deg, #c44536, #6b705c);
  color: #f5f1e8;
  padding: 5px 14px;
  border-radius: 3px;
  font-size: 14px;
  font-weight: 600;
}
.timeline-item p {
  color: #5a5a4f;
  font-size: 14px;
}

.categories-cloud {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
}
.cat-link {
  display: block;
  padding: 28px 32px;
  background: linear-gradient(168deg, #fffdf7 0%, #f5f1e8 100%);
  border: 1px solid #d5cdb6;
  border-radius: 6px;
  transition: all .45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.cat-link:hover {
  border-color: #c44536;
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(196, 69, 54, 0.1);
  color: inherit;
}
.cat-name {
  display: block;
  font-size: 17px;
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 6px;
}
.cat-desc {
  display: block;
  font-size: 13px;
  color: #6b705c;
}

.section-team { padding: 80px 0; }
.team-intro {
  text-align: left;
  max-width: 680px;
  margin: 0 0 48px;
  color: #6b705c;
  line-height: 1.8;
}
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 36px;
}
.team-card {
  background: linear-gradient(172deg, #fffdf7 0%, #f0ebe0 100%);
  padding: 36px 24px;
  border-radius: 6px;
  text-align: left;
  border: 1px solid #d5cdb6;
  transition: all .5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.team-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 14px 36px rgba(26, 26, 26, 0.1);
}
.team-avatar { display: block; margin: 0 0 18px; }
.team-avatar img {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0;
}
.team-info h3 {
  font-size: 17px;
  margin-bottom: 4px;
}
.team-info h3 a { color: #1a1a1a; }
.team-info h3 a:hover { color: #c44536; }
.team-role {
  color: #c44536;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 10px;
}
.team-bio {
  color: #6b705c;
  font-size: 13px;
  margin-bottom: 14px;
  line-height: 1.6;
  min-height: 40px;
}
.team-expertise {
  display: flex;
  gap: 8px;
  justify-content: flex-start;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.exp-tag, .expertise-tag {
  display: inline-block;
  padding: 4px 12px;
  background: linear-gradient(135deg, #f5f1e8, #ebe5d6);
  color: #1a1a1a;
  border-radius: 999px;
  font-size: 11px;
}
.team-stats {
  display: inline-block;
  padding: 5px 14px;
  background: linear-gradient(135deg, #f5f1e8, #e8e0d0);
  border-radius: 999px;
  font-size: 12px;
  color: #6b705c;
}
.verified, .verified-badge {
  color: #c44536;
  font-size: 14px;
  margin-left: 4px;
}

.testimonial-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 36px;
}
.testimonial-card {
  background: linear-gradient(165deg, #fffdf7 0%, #f5f1e8 100%);
  padding: 36px 32px;
  border-radius: 6px;
  border: 1px solid #d5cdb6;
  position: relative;
}
.testimonial-rating, .testimonial-card .rating {
  color: #c44536;
  font-size: 18px;
  margin-bottom: 16px;
  letter-spacing: 2px;
}
.testimonial-text {
  font-style: italic;
  color: #1a1a1a;
  margin-bottom: 20px;
  line-height: 1.7;
  border-left: 4px solid #c44536;
  padding-left: 18px;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
  border-top: 1px solid #d5cdb6;
  padding-top: 16px;
  margin-top: 16px;
}
.author-avatar {
  width: 44px;
  height: 44px;
  background: linear-gradient(160deg, #c44536 0%, #6b705c 100%);
  color: #f5f1e8;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 18px;
}
.author-info strong {
  display: block;
  font-size: 14px;
  color: #1a1a1a;
}
.author-info small {
  color: #6b705c;
  font-size: 12px;
}

.section-faq { background: linear-gradient(170deg, #f5f1e8 0%, #ebe5d6 100%); }
.faq-list { max-width: 720px; margin: 0 0; }
.faq-item {
  background: linear-gradient(175deg, #fffdf7 0%, #faf6ee 100%);
  padding: 22px 28px;
  border-radius: 6px;
  margin-bottom: 16px;
  border: 1px solid #d5cdb6;
  transition: all 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.faq-item[open] {
  border-color: #c44536;
  box-shadow: 0 6px 20px rgba(196, 69, 54, 0.08);
}
.faq-item summary {
  font-weight: 600;
  cursor: pointer;
  font-size: 16px;
  list-style: none;
  outline: none;
  padding: 6px 0;
  position: relative;
  padding-right: 34px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 24px;
  color: #c44536;
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.faq-item[open] summary::after { content: '−'; }
.faq-q-num { color: #c44536; font-weight: 700; margin-right: 10px; }
.faq-answer {
  padding: 18px 0 0;
  color: #3d3d35;
  line-height: 1.8;
  font-size: 15px;
}

.section-keywords { padding: 64px 0; }
.keywords-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: flex-start;
  max-width: 1100px;
  margin: 0 auto;
}
.kw-tag {
  display: inline-block;
  padding: 10px 20px;
  background: linear-gradient(155deg, #fffdf7, #f5f1e8);
  border: 1px solid #d5cdb6;
  border-radius: 999px;
  font-size: 14px;
  color: #1a1a1a;
  transition: all .45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.kw-tag:hover {
  background: linear-gradient(135deg, #c44536, #8b2e20);
  color: #f5f1e8;
  border-color: #c44536;
  transform: translateY(-3px);
}

.section-summary { background: linear-gradient(170deg, #f5f1e8 0%, #ebe5d6 100%); }
.summary-content {
  max-width: 780px;
  margin: 0 0;
  font-size: 17px;
  line-height: 1.9;
}
.summary-content p { margin-bottom: 24px; color: #1a1a1a; }

.section-cta, .hero-cta-section {
  background: linear-gradient(155deg, #1a1a1a 0%, #3d2b1f 35%, #c44536 100%);
  color: #f5f1e8;
  text-align: left;
  padding: 80px 48px;
}
.section-cta h2, .hero-cta-section h2 {
  color: #f5f1e8;
  font-size: 32px;
  margin: 14px 0 20px;
}
.section-cta p { font-size: 17px; opacity: 0.92; max-width: 640px; margin: 0 0 24px; }
.cta-badge {
  display: inline-block;
  padding: 7px 18px;
  background: linear-gradient(135deg, rgba(245, 241, 232, 0.15), rgba(245, 241, 232, 0.25));
  border-radius: 999px;
  font-size: 14px;
  margin-bottom: 20px;
}
.cta-buttons {
  display: flex;
  gap: 20px;
  justify-content: flex-start;
  flex-wrap: wrap;
  margin-bottom: 36px;
}
.section-cta .btn-primary { background: #f5f1e8; color: #c44536; }
.section-cta .btn-outline {
  background: transparent;
  color: #f5f1e8;
  border: 2px solid #f5f1e8;
}
.section-cta .btn-outline:hover { background: #f5f1e8; color: #c44536; }

.home-backlinks {
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid rgba(245, 241, 232, 0.25);
}
.home-backlinks h3 { color: #f5f1e8; font-size: 15px; margin-bottom: 14px; }
.home-backlinks a {
  color: rgba(245, 241, 232, 0.8);
  margin: 0 6px;
  font-size: 13px;
}
.home-backlinks a:hover { color: #f5f1e8; }

.single-wrap {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 56px;
  padding: 48px 0;
}
.article-main {
  background: linear-gradient(178deg, #fffdf7 0%, #f5f1e8 100%);
  padding: 48px 40px;
  border-radius: 6px;
  border: 1px solid #d5cdb6;
}

.article-header { margin-bottom: 32px; }
.article-header h1 {
  font-size: 32px;
  line-height: 1.3;
  margin-bottom: 20px;
  color: #1a1a1a;
}
.article-meta {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  font-size: 14px;
  color: #6b705c;
  padding: 18px 0;
  border-top: 2px solid #d5cdb6;
  border-bottom: 2px solid #d5cdb6;
  align-items: center;
}
.article-meta a { color: #c44536; }
.article-meta time { display: inline-flex; align-items: center; gap: 6px; }
.meta-updated { color: #6b705c; }

.article-thumb {
  margin: 28px 0;
  border-radius: 6px;
  overflow: hidden;
}
.article-thumb img { width: 100%; height: auto; display: block; }

.article-excerpt {
  background: linear-gradient(145deg, rgba(196, 69, 54, 0.04), rgba(107, 112, 92, 0.06));
  padding: 24px 28px;
  border-left: 5px solid #c44536;
  border-radius: 6px;
  margin: 28px 0;
  font-size: 16px;
  line-height: 1.8;
  color: #1a1a1a;
}

.toc-box {
  background: linear-gradient(170deg, #f5f1e8 0%, #ebe5d6 100%);
  padding: 24px 28px;
  border-radius: 6px;
  border: 1px solid #d5cdb6;
  margin: 28px 0;
}
.toc-box h2 {
  font-size: 16px;
  margin: 0 0 14px;
  color: #c44536;
  text-align: left;
}
.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.toc-list li {
  padding: 5px 0;
  font-size: 14px;
}
.toc-list .toc-l3 {
  padding-left: 28px;
  font-size: 13px;
}
.toc-list a {
  color: #1a1a1a;
  display: block;
  padding: 5px 10px;
  border-radius: 3px;
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.toc-list a:hover {
  background: linear-gradient(135deg, #fffdf7, #f5f1e8);
  color: #c44536;
  padding-left: 16px;
}

.article-content {
  font-size: 16px;
  line-height: 1.9;
  color: #1a1a1a;
}
.article-content h2 {
  font-size: 26px;
  margin: 40px 0 18px;
  padding-bottom: 10px;
  border-bottom: 3px solid #c44536;
  color: #1a1a1a;
  text-align: left;
}
.article-content h3 {
  font-size: 20px;
  margin: 28px 0 14px;
  color: #1a1a1a;
}
.article-content p { margin-bottom: 18px; }
.article-content img {
  border-radius: 6px;
  margin: 24px auto;
  max-width: 100%;
  height: auto;
}
.article-content ul, .article-content ol {
  margin: 18px 0 18px 34px;
}
.article-content li { margin-bottom: 10px; }
.article-content blockquote {
  border-left: 5px solid #c44536;
  padding: 18px 24px;
  background: linear-gradient(165deg, #f5f1e8, #ebe5d6);
  margin: 24px 0;
  color: #6b705c;
  font-style: italic;
}
.article-content a {
  color: #c44536;
  text-decoration: underline;
}
.article-content code {
  background: linear-gradient(135deg, #f5f1e8, #ebe5d6);
  padding: 2px 8px;
  border-radius: 3px;
  font-size: 14px;
  color: #c44536;
}
.article-content pre {
  background: linear-gradient(160deg, #1a1a1a, #2d2418);
  color: #ebe5d6;
  padding: 20px;
  border-radius: 6px;
  overflow-x: auto;
  margin: 24px 0;
}
.article-content pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
}
.article-content th, .article-content td {
  border: 1px solid #d5cdb6;
  padding: 12px 16px;
  text-align: left;
}
.article-content th { background: linear-gradient(135deg, #f5f1e8, #ebe5d6); font-weight: 600; }

.tags-row, .share-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 24px 0;
  border-top: 2px solid #d5cdb6;
  margin-top: 28px;
  font-size: 14px;
}
.tags-row strong, .share-row strong {
  margin-right: 10px;
  color: #1a1a1a;
}
.tags-row a, .share-row a, .share-copy-btn {
  display: inline-block;
  padding: 7px 16px;
  background: linear-gradient(145deg, #f5f1e8, #ebe5d6);
  color: #1a1a1a;
  border-radius: 999px;
  font-size: 13px;
  transition: all 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  border: 0;
  cursor: pointer;
}
.tags-row a:hover, .share-row a:hover, .share-copy-btn:hover {
  background: linear-gradient(135deg, #c44536, #8b2e20);
  color: #f5f1e8;
}

.post-nav {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
  margin: 40px 0;
}
.post-nav a, .post-nav .nav-empty {
  padding: 20px 24px;
  background: linear-gradient(168deg, #f5f1e8 0%, #ebe5d6 100%);
  border-radius: 6px;
  display: block;
  color: inherit;
  border: 1px solid #d5cdb6;
  transition: all 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.post-nav a:hover {
  background: linear-gradient(168deg, #fffdf7, #f5f1e8);
  border-color: #c44536;
  box-shadow: 0 6px 18px rgba(196, 69, 54, 0.08);
}
.post-nav span { display: block; color: #6b705c; margin-bottom: 6px; font-size: 12px; }
.post-nav strong {
  display: block;
  color: #1a1a1a;
  font-size: 14px;
  line-height: 1.4;
}
.post-nav .nav-empty {
  color: #a89f91;
  font-size: 13px;
  text-align: center;
  align-content: center;
}

/* ============ Author Box (single) ============ */
.author-box {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: var(--bg-soft);
  border-radius: var(--radius);
  margin: 30px 0;
  border: 1px solid var(--border);
}
.author-box img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  flex-shrink: 0;
  object-fit: cover;
}
.author-box h2 {
  font-size: 18px;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
  text-align: left;
}
.author-box h2 a { color: var(--text); }
.author-box .verified {

  background: var(--success);
  color: #fff;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  margin-left: 0;
}
.author-box .job {
  font-size: 14px;
  color: var(--primary);
  margin-bottom: 8px;
  font-weight: 500;
}
.author-box p {
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 8px;
}
.author-box .expertise {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

/* ============ Related Section ============ */
.related-section { margin-top: 40px; }
.related-section h2 {
  font-size: 22px;
  margin-bottom: 20px;
  text-align: left;
  color: var(--text);
}

/* ============ Post Grids ============ */
.post-grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.post-grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

/* ============ Card Post (universal) ============ */
.card-post {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
}
.card-post:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--primary);
}
.card-post .thumb {
  display: block;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--bg-alt);
}
.card-post .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}
.card-post:hover .thumb img { transform: scale(1.05); }
.card-post .body {
  padding: 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.card-post h3 {
  font-size: 16px;
  margin: 6px 0 8px;
  line-height: 1.4;
  text-align: left;
}
.card-post h3 a { color: var(--text); }
.card-post h3 a:hover { color: var(--primary); }
.card-excerpt {
  color: var(--text-light);
  font-size: 13px;
  margin-bottom: 12px;
  line-height: 1.6;
  flex: 1;
}
.card-post .meta {
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: var(--muted);
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}
.card-post .meta time { display: inline-flex; align-items: center; gap: 2px; }

/* ============ Category Page ============ */
.cat-header {
  background: linear-gradient(135deg, var(--bg-soft), var(--bg-alt));
  padding: 48px 20px;
  border-bottom: 1px solid var(--border);
  text-align: center;
}
.cat-header h1 {
  font-size: 36px;
  margin-bottom: 12px;
  color: var(--text);
}
.cat-intro {
  color: var(--text-light);
  font-size: 17px;
  max-width: 700px;
  margin: 0 auto 16px;
  line-height: 1.7;
}
.cat-stats {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--text-light);
  margin-top: 16px;
}
.cat-stats strong { color: var(--primary); }

.cat-main-content { /* khung chính category page */ }

/* ============ Sort Bar ============ */
.sort-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 24px;
  font-size: 14px;
  flex-wrap: wrap;
}
.sort-bar > span { color: var(--text-light); }
.sort-bar a {
  padding: 6px 14px;
  border-radius: 999px;
  color: var(--text-light);
  transition: all 0.2s;
}
.sort-bar a:hover { background: var(--bg-soft); color: var(--primary); }
.sort-bar a.active {
  background: var(--primary);
  color: #fff;
}

/* ============ Pagination ============ */
.pagination {
  display: flex;
  gap: 6px;
  justify-content: center;
  margin: 40px 0 20px;
  flex-wrap: wrap;
}
.pagination a, .pagination span.current
 {
  padding: 8px 14px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  text-decoration: none;
  min-width: 40px;
  text-align: center;
}
.pagination a:hover { border-color: var(--primary); color: var(--primary); }
.pagination span.current, .pagination a.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.pagination-dots {
  padding: 8px 4px;
  color: var(--muted);
}
.pagination-info {
  text-align: center;
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 20px;
}

/* ============ Cat SEO Footer ============ */
.cat-seo-section {
  background: var(--bg-soft);
  padding: 30px;
  border-radius: var(--radius);
  margin-top: 40px;
}
.cat-seo-section h2 {
  font-size: 20px;
  text-align: left;
  border-bottom: 0;
  padding: 0;
  margin-bottom: 16px;
}
.cat-seo-text { font-size: 15px; line-height: 1.8; color: var(--text-light); }
.cat-seo-text p { margin-bottom: 12px; }

/* ============ Empty State ============ */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  background: #fff;
  border-radius: var(--radius);
  border: 1px dashed var(--border);
}
.empty-state h2 {
  font-size: 22px;
  margin-bottom: 12px;
  text-align: center;
}
.empty-state p {
  color: var(--text-light);
  margin-bottom: 8px;
}

/* ============ Sidebar ============ */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.widget {
  background: #fff;
  padding: 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.widget h3 {
  font-size: 16px;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--primary);
  text-align: left;
}
.widget-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.widget-list li {
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
}
.widget-list li:last-child { border-bottom: 0; }
.widget-list a { color: var(--text); }
.widget-list a:hover { color: var(--primary); }
.widget-list .num {
  display: inline-block;
  width: 22px;
  height: 22px;
  background: var(--primary);
  color: #fff;
  text-align: center;
  border-radius: 50%;
  font-size: 12px;
  line-height: 22px;
  flex-shrink: 0;
}

.widget-thumb-list { padding: 0; }
.widget-thumb-item { padding: 10px 0; }
.thumb-link {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 10px;
  align-items: center;
}
.thumb-link img {
  width: 80px;
  height: 60px;
  object-fit: cover;
  border-radius: 4px;
}
.thumb-link strong {
  display: block;
  font-size: 13px;
  line-height: 1.4;
  color: var(--text);
  margin-bottom: 4px;
}
.thumb-link small {
  color: var(--muted);
  font-size: 11px;
}

.widget-notice {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
}
.widget-notice h3 {
  color: #fff;
  border-bottom-color: rgba(255,255,255,0.3);
}
.widget-notice p { font-size: 14px; opacity: 0.95; }
.widget-notice-btn {
  margin-top: 12px;
  display: block;
  text-align: center;
  background: #fff !important;
  color: var(--primary) !important;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tag-cloud a {
  display: inline-block;
  padding: 4px 10px;
  background: var(--bg-soft);
  color: var(--text);
  border-radius: 4px;
  font-size: 12px;
  transition: all 0.2s;
}
.tag-cloud a:hover { background: var(--primary); color: #fff; }

/* ============ Footer ============ */
.site-footer {
  background: #1f2937;
  color: #d1d5db;
  padding: 60px 0 20px;
  margin-top: 60px;
}
.footer-grid {
  display
: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 30px;
  margin-bottom: 40px;
  padding: 0 20px;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
}
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 16px;
}
.footer-col ul { list-style: none; padding: 0; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { color: #d1d5db; font-size: 14px; }
.footer-col a:hover { color: #fff; }

.footer-logo {
  height: 36px;
  width: auto;
  margin-bottom: 12px;
  filter: brightness(0) invert(1);
}
.footer-brand-desc {
  color: rgba(255,255,255,0.85);
  line-height: 1.6;
  font-size: 14px;
  margin-bottom: 16px;
}

.footer-socials {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  flex-wrap: wrap;
}
.footer-socials a {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  text-decoration: none;
}
.footer-socials a:hover { background: var(--primary); }

.footer-contact-item {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
  align-items: flex-start;
}
.contact-icon { flex-shrink: 0; font-size: 18px; }
.contact-body { flex: 1; }
.contact-title {
  color: #fff;
  display: block;
  font-size: 13px;
  margin-bottom: 2px;
}
.contact-value { color: rgba(255,255,255,0.85); font-size: 13px; }
.contact-value:hover { color: #fff; }

.footer-bottom {
  padding: 20px 20px 0;
  border-top: 1px solid #374151;
  text-align: center;
  font-size: 14px;
  max-width: var(--max-width);
  margin: 0 auto;
}
.footer-legal-links { margin-bottom: 8px; }
.footer-legal-links a { color: #d1d5db; font-size: 13px; }
.footer-legal-links a:hover { color: #fff; }

.footer-beian {
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  margin: 8px 0;
}
.footer-beian a { color: rgba(255,255,255,0.7); }

.footer-copyright {
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  margin-top: 8px;
}
.footer-disclaimer {
  opacity: 0.7;
  font-size: 12px;
  margin-top: 8px;
}

/* ============ Back to Top ============ */
.back-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-size: 20px;
  font-weight: bold;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
  z-index: 99;
}
.back-to-top:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
}
.back-to-top.is-visible { opacity: 1; visibility: visible; }

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .single-wrap { grid-template-columns: 1fr; }
  .featured-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-brief-content { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .hamburger-btn { display: flex; }
  .main-nav { display: none; }
  .header-search { display: none; }
  .hero h1, .hero-title { font-size: 28px; }
  .hero-desc { font-size: 16px; }
  .article-header h1 { font-size: 26px; }
  .article-main { padding: 20px; }
  .post-nav { grid-template-columns: 1fr; }
  .author-box { flex-direction: column; text-align: center; }
  .author-box img { margin: 0 auto; }
  .section, section { padding: 50px 0; }
  .section-header h2 { font-size: 24px; }
  .featured-side-item { grid-template-columns: 80px 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .grid-stats { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { gap: 24px; }
  .hero-stats strong { font-size: 28px; }
  .timeline::before { left: 14px; }
  .timeline-item { padding-left: 44px; }
  .timeline-item::before { left: 8px; }
  .article-content h2 { font-size: 22px; }
  .article-content h3 { font-size: 18px; }
}

@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; }
  .header-inner { flex-wrap: wrap; padding: 12px; }
  .grid-stats { grid-template-columns: 1fr; }
  .article-meta { gap: 10px; font-size: 13px; }
  .pagination a, .pagination span.current {
    padding: 6px 10px;
    min-width: 32px;
    font-size: 13px;
  }
  .cat-header h1 { font-size: 26px; }
  .cat-stats { gap: 12px; flex-direction: column; }
  .post-grid-2, .post-grid-3 { grid-template-columns: 1fr; }
  .featured-grid { gap: 16px; }
  .section-cta h2, .hero-cta-section h2 { font-size: 24px; }
}

/* ============ Print Styles (bonus SEO) ============ */
@media print {
  .site-header, .site-footer, .sidebar,
  .reading-progress, .back-to-top,
  .share-row, .post-nav,
  .related-section, .toc-box {
    display: none !important;
  }
  .article-main { border: 0; padding: 0; }
  body { background: #fff; }
}

/* ============================================
   信任徽章区 - Trust Badges Section
   权威认证 + 信任保障 (E-E-A-T 信号)
   ============================================ */

/* Section 容器 */
.section-trust {
  background: var(--b
g-soft);
}

/* 徽章网格 - 自适应布局 */
.trust-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);  /* 固定 3 列 */
  gap: 16px;
  max-width: 1000px;
  margin: 0 auto;
}

/* 单个徽章卡片 */
.trust-badge {
  display: flex;
  align-items: center;
  gap: 14px;
  background: #fff;
  padding: 16px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

/* 顶部装饰条 - 悬停时显示 */
.trust-badge::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

/* 悬停效果 */
.trust-badge:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: var(--primary);
}

.trust-badge:hover::before {
  transform: scaleX(1);
}

/* 徽章图标容器 */
.trust-badge-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, 
    rgba(37, 99, 235, 0.1), 
    rgba(124, 58, 237, 0.1));
  color: var(--primary);
  border-radius: var(--radius);
  font-size: 22px;
  transition: all 0.3s ease;
}

/* 悬停时图标变深色 */
.trust-badge:hover .trust-badge-icon {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  transform: scale(1.05);
}

/* 图标图片 */
.badge-icon-img {
  width: 24px;
  height: 24px;
  object-fit: contain;
  transition: filter 0.3s ease;
}

/* 悬停时纯色 SVG 变白 */
.trust-badge:hover .badge-icon-img {
  filter: brightness(0) invert(1);
}

/* 徽章文字 */
.trust-badge-text {
  flex: 1;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
}

/* ============================================
   响应式设计
   ============================================ */

/* 平板 */
@media (max-width: 968px) {
  .trust-row {
    grid-template-columns: repeat(2, 1fr);  /* 平板 2 列 */
    max-width: 600px;
    gap: 14px;
  }

  .trust-badge {
    padding: 14px 16px;
    gap: 12px;
  }
  
  .trust-badge-icon {
    width: 40px;
    height: 40px;
    font-size: 20px;
  }
  
  .badge-icon-img {
    width: 22px;
    height: 22px;
  }
  
  .trust-badge-text {
    font-size: 13px;
  }
}

@media (max-width: 480px) {
  .trust-row {
    grid-template-columns: 1fr;  /* 手机 1 列 */
    max-width: 100%;
    gap: 10px;
  }
  
  .trust-badge {
    padding: 12px 14px;
    gap: 10px;
  }
  
  .trust-badge-icon {
    width: 36px;
    height: 36px;
    font-size: 18px;
  }
  
  .badge-icon-img {
    width: 20px;
    height: 20px;
  }
  
  .trust-badge-text {
    font-size: 12px;
  }
}

/* ============================================
   无障碍 - 减少动画偏好
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  .trust-badge,
  .trust-badge::before,
  .trust-badge-icon,
  .badge-icon-img {
    transition: none;
  }
  
  .trust-badge:hover {
    transform: none;
  }
  
  .trust-badge:hover .trust-badge-icon {
    transform: none;
  }
}

/* ============================================
   打印样式
   ============================================ */
@media print {
  .section-trust {
    background: #fff;
    page-break-inside: avoid;
  }
  
  .trust-badge {
    border: 1px solid #ccc;
    box-shadow: none;
    break-inside: avoid;
  }
  
  .trust-badge::before {
    display: none;
  }
}

/* ============================================
   最新动态滚动栏 - News Ticker
   提升内链密度 + Fresh Content 信号
   ============================================ */

/* 滚动栏外层容器 */
.ticker-bar {
  background: linear-gradient(90deg, #1e293b 0%, #0f172a 100%);
  border-bottom: 2px solid var(--primary, #2563eb);
  padding: 12px 0;
  overflow: hidden;
  position: relative;
  z-index: 10;
}

/* 顶部装饰线 */
.ticker-bar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    var(--primary, #2563eb) 50%, 
    transparent 100%);

  animation: tickerGlow 3s ease-in-out infinite;
}

@keyframes tickerGlow {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* 内层布局 */
.ticker-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  overflow: hidden;
}

/* "最新" 标签 */
.ticker-label {
  flex-shrink: 0;
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  color: #fff;
  font-weight: 700;
  font-size: 0.875rem;
  padding: 6px 14px;
  border-radius: 20px;
  box-shadow: 0 2px 8px rgba(239, 68, 68, 0.4);
  animation: tickerPulse 2s ease-in-out infinite;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

@keyframes tickerPulse {
  0%, 100% { 
    transform: scale(1);
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.4);
  }
  50% { 
    transform: scale(1.05);
    box-shadow: 0 4px 16px rgba(239, 68, 68, 0.6);
  }
}

/* 滚动轨道 */
.ticker-track {
  flex: 1;
  display: flex;
  gap: 40px;
  overflow: hidden;
  white-space: nowrap;
  position: relative;
  mask-image: linear-gradient(90deg, 
    transparent 0%, 
    #000 5%, 
    #000 95%, 
    transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, 
    transparent 0%, 
    #000 5%, 
    #000 95%, 
    transparent 100%);
}

/* 内部滚动动画 */
.ticker-track {
  animation: tickerScroll 40s linear infinite;
}

@keyframes tickerScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* 鼠标悬停时暂停滚动 */
.ticker-bar:hover .ticker-track {
  animation-play-state: paused;
}

/* 滚动链接 */
.ticker-track a {
  color: #e2e8f0;
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 4px 8px;
  border-radius: 4px;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  position: relative;
}

/* 链接前的小圆点装饰 */
.ticker-track a::before {
  content: '•';
  color: var(--primary, #2563eb);
  margin-right: 8px;
  font-size: 1.2rem;
  line-height: 1;
}

/* 链接悬停效果 */
.ticker-track a:hover {
  color: #fff;
  background: rgba(37, 99, 235, 0.15);
  transform: translateY(-1px);
}

.ticker-track a:hover::before {
  color: #fbbf24;
}

/* ============================================
   响应式设计 - 移动端适配
   ============================================ */
@media (max-width: 768px) {
  .ticker-bar {
    padding: 10px 0;
  }
  
  .ticker-inner {
    gap: 10px;
  }
  
  .ticker-label {
    font-size: 0.75rem;
    padding: 4px 10px;
  }
  
  .ticker-track {
    gap: 24px;
    animation-duration: 30s;
  }
  
  .ticker-track a {
    font-size: 0.8125rem;
  }
}

@media (max-width: 480px) {
  .ticker-label {
    font-size: 0.6875rem;
    padding: 3px 8px;
  }
  
  .ticker-track a {
    font-size: 0.75rem;
  }
  
  .ticker-track a::before {
    margin-right: 4px;
  }
}

/* ============================================
   无障碍 - 减少动画偏好
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  .ticker-track {
    animation: none;
  }
  
  .ticker-label {
    animation: none;
  }
  
  .ticker-bar::before {
    animation: none;
  }
  
  /* 静态显示模式 - 启用横向滚动 */
  .ticker-track {
    overflow-x: auto;
    scrollbar-width: thin;
  }
}

/* ============================================
   暗色模式适配 (可选)
   ============================================ */
@media (prefers-color-scheme: light) {
  .ticker-bar {
    background: linear-gradient(90deg, #f1f5f9 0%, #e2e8f0 100%);
    border-bottom-color: var(--primary, #2563eb);
  }
  
  .ticker-track a {
    color: #334155;
  }
  
  .ticker-track a:hover {
    color: var(--primary, #2563eb);
    background: rgba(37, 99, 235, 0.08);
  }
}

/* 焦点资讯 - 侧边小卡片 excerpt */
.featured-side-item .excerpt-side {
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-light, #666);
  margin: 6px 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}