:root {
  --brand: #1D4ED8;
  --brand-dark: #1E3A8A;
  --brand-light: #3B82F6;
  --brand-glow: rgba(29, 78, 216, 0.35);
  --bg: #F8FAFC;
  --bg-gradient: linear-gradient(180deg, #F8FAFC 0%, #EEF2FF 100%);
  --surface: #FFFFFF;
  --surface-alt: #F1F5F9;
  --glass-bg: rgba(255, 255, 255, 0.72);
  --glass-border: rgba(255, 255, 255, 0.55);
  --glass-shadow: rgba(15, 23, 42, 0.10);
  --text-primary: #17202A;
  --text-secondary: #334155;
  --text-muted: #475569;
  --text-inverse: #FFFFFF;
  --border: #CBD5E1;
  --border-soft: rgba(203, 213, 225, 0.6);
  --shadow: rgba(15, 23, 42, 0.08);
  --shadow-md: rgba(15, 23, 42, 0.12);
  --shadow-lg: rgba(15, 23, 42, 0.18);
  --footer-bg: #1F2937;
  --footer-text: #E5E7EB;
  --footer-muted: #CBD5E1;
  --nav-bg: rgba(255, 255, 255, 0.82);
  --nav-text: #1F2937;
  --card-bg: #FFFFFF;
  --card-text: #17202A;
  --btn-bg: #1D4ED8;
  --btn-text: #FFFFFF;
  --link: #1D4ED8;
  --link-hover: #1E3A8A;
  --banner-overlay: rgba(15, 23, 42, 0.55);
  --banner-grad: linear-gradient(135deg, #1E3A8A 0%, #1D4ED8 55%, #3B82F6 100%);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 26px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

[data-theme="dark"] {
  --brand: #60A5FA;
  --brand-dark: #3B82F6;
  --brand-light: #93C5FD;
  --brand-glow: rgba(96, 165, 250, 0.35);
  --bg: #0F172A;
  --bg-gradient: linear-gradient(180deg, #0F172A 0%, #111C34 100%);
  --surface: #1E293B;
  --surface-alt: #334155;
  --glass-bg: rgba(30, 41, 59, 0.72);
  --glass-border: rgba(148, 163, 184, 0.22);
  --glass-shadow: rgba(0, 0, 0, 0.45);
  --text-primary: #F1F5F9;
  --text-secondary: #E2E8F0;
  --text-muted: #CBD5E1;
  --text-inverse: #0F172A;
  --border: #475569;
  --border-soft: rgba(71, 85, 105, 0.7);
  --shadow: rgba(0, 0, 0, 0.4);
  --shadow-md: rgba(0, 0, 0, 0.5);
  --shadow-lg: rgba(0, 0, 0, 0.6);
  --footer-bg: #020617;
  --footer-text: #E5E7EB;
  --footer-muted: #CBD5E1;
  --nav-bg: rgba(30, 41, 59, 0.82);
  --nav-text: #F1F5F9;
  --card-bg: #1E293B;
  --card-text: #F1F5F9;
  --btn-bg: #3B82F6;
  --btn-text: #FFFFFF;
  --link: #93C5FD;
  --link-hover: #BFDBFE;
  --banner-overlay: rgba(2, 6, 23, 0.7);
  --banner-grad: linear-gradient(135deg, #0B1220 0%, #1E3A8A 55%, #2563EB 100%);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Source Han Sans CN", sans-serif;
  background: var(--bg);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.8;
  font-size: 16px;
  transition: background .4s var(--ease), color .4s var(--ease);
  overflow-x: hidden;
}

img,
svg {
  max-width: 100%;
  display: block;
}

a {
  color: var(--link);
  text-decoration: none;
  transition: color .25s var(--ease);
}

a:hover {
  color: var(--link-hover);
  text-decoration: underline;
}

h1,
h2,
h3,
h4 {
  color: var(--text-primary);
  line-height: 1.4;
  font-weight: 800;
  letter-spacing: -0.01em;
}

h1 {
  font-size: 2rem;
}

h2 {
  font-size: 1.6rem;
  margin-bottom: 1rem;
  position: relative;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: .75rem;
  color: var(--brand-dark);
}

h4 {
  font-size: 1.05rem;
  margin-bottom: .5rem;
  color: var(--text-secondary);
}

p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
}

section {
  padding: 56px 0;
}

.section-alt {
  background: var(--surface-alt);
  background-image: linear-gradient(180deg, transparent, rgba(29, 78, 216, 0.03));
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--brand);
  color: var(--btn-text);
  padding: 10px 16px;
  z-index: 9999;
  border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus {
  left: 10px;
  top: 10px;
}

.top-bar {
  background: linear-gradient(90deg, var(--brand-dark), var(--brand));
  color: var(--text-inverse);
  font-size: .85rem;
  padding: 6px 0;
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.top-bar a {
  color: var(--text-inverse);
  text-decoration: none;
}

.top-bar a:hover {
  text-decoration: underline;
  color: #DBEAFE;
}

header.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--nav-bg);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 4px 20px var(--glass-shadow);
  transition: background .4s var(--ease), box-shadow .4s var(--ease);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--nav-text);
  text-decoration: none;
  transition: transform .3s var(--ease);
}

.logo:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.logo-mark {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  border-radius: 10px;
  box-shadow: 0 4px 14px var(--brand-glow);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}

.logo:hover .logo-mark {
  transform: rotate(-6deg) scale(1.06);
  box-shadow: 0 6px 20px var(--brand-glow);
}

nav.main-nav ul {
  display: flex;
  list-style: none;
  gap: 22px;
  align-items: center;
}

nav.main-nav a {
  color: var(--nav-text);
  font-weight: 600;
  font-size: .95rem;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: color .25s var(--ease), border-color .25s var(--ease);
}

nav.main-nav a:hover {
  color: var(--brand);
  border-bottom-color: var(--brand);
  text-decoration: none;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-box {
  display: flex;
  align-items: center;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: box-shadow .3s var(--ease), border-color .3s var(--ease);
}

.search-box:focus-within {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-glow);
}

.search-box input {
  border: none;
  background: transparent;
  padding: 8px 12px;
  font-size: .9rem;
  color: var(--text-primary);
  outline: none;
  width: 150px;
  font-family: inherit;
}

.search-box input::placeholder {
  color: var(--text-muted);
}

.search-box button {
  border: none;
  background: var(--btn-bg);
  color: var(--btn-text);
  padding: 8px 12px;
  cursor: pointer;
  font-size: .85rem;
  font-weight: 600;
  font-family: inherit;
  transition: background .25s var(--ease);
}

.search-box button:hover {
  background: var(--brand-dark);
}

.theme-toggle {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .3s var(--ease), color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}

.theme-toggle:hover {
  background: var(--brand);
  color: var(--btn-text);
  transform: rotate(18deg) scale(1.05);
  box-shadow: 0 4px 16px var(--brand-glow);
}

.menu-toggle {
  display: none;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 1.2rem;
  align-items: center;
  justify-content: center;
  transition: background .25s var(--ease);
}

.breadcrumb {
  padding: 14px 0;
  font-size: .88rem;
  color: var(--text-muted);
}

.breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.breadcrumb li::after {
  content: "›";
  margin-left: 6px;
  color: var(--text-muted);
}

.breadcrumb li:last-child::after {
  content: "";
}

.breadcrumb a {
  color: var(--link);
  font-weight: 500;
}

.breadcrumb .current {
  color: var(--text-secondary);
  font-weight: 600;
}

.banner {
  position: relative;
  background: var(--banner-grad);
  color: #FFFFFF;
  overflow: hidden;
  border-radius: 0;
  padding: 0;
}

.banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 82% 18%, rgba(255, 255, 255, 0.22), transparent 42%),
    radial-gradient(circle at 12% 88%, rgba(96, 165, 250, 0.28), transparent 46%);
  pointer-events: none;
  z-index: 1;
}

.banner-slides {
  position: relative;
  min-height: 400px;
}

.banner-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity .8s var(--ease), visibility .8s var(--ease);
  display: flex;
  align-items: center;
  padding: 60px 0;
}

.banner-slide.active {
  opacity: 1;
  visibility: visible;
  position: relative;
}

.banner-slide::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--banner-overlay);
  z-index: 1;
}

.banner-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  animation: bannerIn .9s var(--ease) both;
}

@keyframes bannerIn {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.banner-content h1 {
  color: #FFFFFF;
  font-size: 2.2rem;
  margin-bottom: 16px;
  text-shadow: 0 2px 18px rgba(0, 0, 0, .55);
}

.banner-content p {
  color: #F1F5F9;
  font-size: 1.05rem;
  margin-bottom: 24px;
  text-shadow: 0 1px 8px rgba(0, 0, 0, .55);
}

.banner-tag {
  display: inline-block;
  background: rgba(255, 255, 255, .16);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, .5);
  color: #FFFFFF;
  font-size: .82rem;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 16px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, .18);
}

.banner-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: .95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--btn-bg);
  color: var(--btn-text);
  border-color: var(--btn-bg);
  box-shadow: 0 6px 20px var(--brand-glow);
}

.btn-primary:hover {
  background: var(--brand-dark);
  border-color: var(--brand-dark);
  color: var(--btn-text);
  text-decoration: none;
  transform: translateY(-3px);
  box-shadow: 0 10px 28px var(--brand-glow);
}

.btn-outline {
  background: rgba(255, 255, 255, .08);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, .85);
}

.btn-outline:hover {
  background: #FFFFFF;
  color: var(--brand-dark);
  text-decoration: none;
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(0, 0, 0, .25);
}

.banner-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 3;
}

.banner-dots button {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid #FFFFFF;
  background: transparent;
  cursor: pointer;
  padding: 0;
  transition: background .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}

.banner-dots button:hover {
  transform: scale(1.25);
}

.banner-dots button.active {
  background: #FFFFFF;
  box-shadow: 0 0 0 4px rgba(255, 255, 255, .28);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
  margin-top: 8px;
}

.stat-card {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  backdrop-filter: blur(14px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 26px 20px;
  text-align: center;
  box-shadow: 0 8px 26px var(--glass-shadow);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}

.stat-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px var(--glass-shadow);
  border-color: var(--brand);
}

.stat-num {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--brand);
  display: block;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.stat-label {
  color: var(--text-secondary);
  font-size: .92rem;
  margin-top: 6px;
  font-weight: 600;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 26px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 26px;
}

.card {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  backdrop-filter: blur(14px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 26px;
  box-shadow: 0 8px 26px var(--glass-shadow);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand), var(--brand-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s var(--ease);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 44px var(--glass-shadow);
  border-color: var(--brand);
}

.card:hover::before {
  transform: scaleX(1);
}

.card h3 {
  color: var(--brand-dark);
}

[data-theme="dark"] .card h3 {
  color: var(--brand-light);
}

.card p {
  color: var(--text-secondary);
  margin-bottom: 0;
}

.card-icon {
  width: 52px;
  height: 52px;
  margin-bottom: 16px;
  border-radius: var(--radius-sm);
  transition: transform .4s var(--ease);
}

.card:hover .card-icon {
  transform: scale(1.08) rotate(-4deg);
}

.intro-block {
  max-width: 900px;
}

.intro-block p {
  font-size: 1.02rem;
}

.article-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.article-card {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  backdrop-filter: blur(14px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 8px 26px var(--glass-shadow);
  display: flex;
  flex-direction: column;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}

.article-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 44px var(--glass-shadow);
  border-color: var(--brand);
}

.article-thumb {
  width: 100%;
  height: 170px;
  transition: transform .5s var(--ease);
}

.article-card:hover .article-thumb {
  transform: scale(1.05);
}

.article-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.article-meta {
  font-size: .82rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.article-body h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  color: var(--text-primary);
  transition: color .25s var(--ease);
}

.article-card:hover .article-body h3 {
  color: var(--brand);
}

.article-body p {
  font-size: .92rem;
  color: var(--text-secondary);
  flex: 1;
}

.read-more {
  margin-top: 14px;
  font-weight: 700;
  font-size: .9rem;
  color: var(--link);
  transition: color .25s var(--ease), transform .25s var(--ease);
  display: inline-block;
}

.read-more:hover {
  color: var(--link-hover);
  transform: translateX(4px);
}

.case-card {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  backdrop-filter: blur(14px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-left: 4px solid var(--brand);
  border-radius: var(--radius-sm);
  padding: 22px;
  box-shadow: 0 8px 26px var(--glass-shadow);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}

.case-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 40px var(--glass-shadow);
}

.case-card h3 {
  color: var(--text-primary);
}

.case-card .case-tag {
  display: inline-block;
  background: var(--surface-alt);
  color: var(--brand-dark);
  font-size: .78rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 4px;
  margin-bottom: 10px;
}

[data-theme="dark"] .case-card .case-tag {
  color: var(--brand-light);
}

blockquote.testimonial {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  backdrop-filter: blur(14px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-left: 4px solid var(--brand);
  padding: 20px 22px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 18px;
  box-shadow: 0 8px 26px var(--glass-shadow);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}

blockquote.testimonial:hover {
  transform: translateX(6px);
  box-shadow: 0 14px 36px var(--glass-shadow);
}

blockquote.testimonial p {
  font-style: normal;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

blockquote.testimonial cite {
  font-style: normal;
  font-weight: 700;
  color: var(--brand-dark);
  font-size: .9rem;
}

[data-theme="dark"] blockquote.testimonial cite {
  color: var(--brand-light);
}

.faq-item {
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  backdrop-filter: blur(14px) saturate(160%);
  overflow: hidden;
  box-shadow: 0 6px 20px var(--glass-shadow);
  transition: box-shadow .3s var(--ease), border-color .3s var(--ease);
}

.faq-item:hover {
  border-color: var(--brand);
  box-shadow: 0 10px 30px var(--glass-shadow);
}

.faq-question {
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  padding: 18px 20px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  font-family: inherit;
  transition: background .25s var(--ease), color .25s var(--ease);
}

.faq-question:hover {
  background: var(--surface-alt);
}

.faq-question .faq-arrow {
  flex-shrink: 0;
  transition: transform .35s var(--ease);
  color: var(--brand);
  font-size: 1.1rem;
}

.faq-item.open .faq-arrow {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s var(--ease);
}

.faq-answer-inner {
  padding: 0 20px 20px;
  color: var(--text-secondary);
  font-size: .95rem;
}

.faq-item.open .faq-answer {
  max-height: 600px;
}

.howto-step {
  display: flex;
  gap: 18px;
  margin-bottom: 22px;
  padding: 18px 20px;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  backdrop-filter: blur(14px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: 0 6px 20px var(--glass-shadow);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}

.howto-step:hover {
  transform: translateX(6px);
  box-shadow: 0 12px 34px var(--glass-shadow);
}

.step-num {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--brand-light));
  color: var(--btn-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  box-shadow: 0 6px 18px var(--brand-glow);
}

.step-body h4 {
  color: var(--text-primary);
  margin-bottom: 6px;
}

.step-body p {
  color: var(--text-secondary);
  margin-bottom: 0;
  font-size: .95rem;
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  backdrop-filter: blur(14px) saturate(160%);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 8px 26px var(--glass-shadow);
}

.info-table th {
  background: linear-gradient(135deg, var(--brand-dark), var(--brand));
  color: var(--text-inverse);
  padding: 14px 16px;
  text-align: left;
  font-size: .92rem;
  font-weight: 700;
}

.info-table td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--border-soft);
  color: var(--text-secondary);
  font-size: .92rem;
}

.info-table tr:last-child td {
  border-bottom: none;
}

.info-table tr:nth-child(even) td {
  background: var(--surface-alt);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}

.contact-item {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  backdrop-filter: blur(14px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  box-shadow: 0 8px 26px var(--glass-shadow);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}

.contact-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px var(--glass-shadow);
  border-color: var(--brand);
}

.contact-item svg {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  transition: transform .4s var(--ease);
}

.contact-item:hover svg {
  transform: scale(1.1) rotate(-5deg);
}

.contact-item h4 {
  color: var(--text-primary);
  margin-bottom: 4px;
  font-size: .98rem;
}

.contact-item p {
  color: var(--text-secondary);
  margin-bottom: 0;
  font-size: .9rem;
  word-break: break-all;
}

.sitemap-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 26px;
}

.sitemap-cols h4 {
  color: var(--text-primary);
  margin-bottom: 12px;
  font-size: 1rem;
}

.sitemap-cols ul {
  list-style: none;
}

.sitemap-cols li {
  margin-bottom: 8px;
}

.sitemap-cols a {
  color: var(--link);
  font-size: .9rem;
  transition: color .25s var(--ease), padding-left .25s var(--ease);
  display: inline-block;
}

.sitemap-cols a:hover {
  color: var(--link-hover);
  padding-left: 5px;
}

footer.site-footer {
  background: var(--footer-bg);
  background-image: linear-gradient(180deg, transparent, rgba(0, 0, 0, .25));
  color: var(--footer-text);
  padding: 50px 0 24px;
  margin-top: 0;
  position: relative;
  overflow: hidden;
}

footer.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand), var(--brand-light), var(--brand));
}

footer.site-footer h4 {
  color: #FFFFFF;
  margin-bottom: 14px;
  font-size: 1rem;
}

footer.site-footer p {
  color: var(--footer-muted);
  font-size: .88rem;
}

footer.site-footer a {
  color: var(--footer-muted);
  font-size: .88rem;
  transition: color .25s var(--ease), padding-left .25s var(--ease);
}

footer.site-footer a:hover {
  color: #FFFFFF;
  text-decoration: underline;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 30px;
  margin-bottom: 34px;
}

.footer-grid ul {
  list-style: none;
}

.footer-grid li {
  margin-bottom: 8px;
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: .82rem;
  color: var(--footer-muted);
}

.footer-bottom a {
  color: var(--footer-muted);
}

.footer-bottom a:hover {
  color: #FFFFFF;
}

.back-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--btn-bg);
  color: var(--btn-text);
  border: none;
  cursor: pointer;
  font-size: 1.2rem;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 22px var(--brand-glow);
  z-index: 900;
  transition: background .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}

.back-top.show {
  display: flex;
}

.back-top:hover {
  background: var(--brand-dark);
  transform: translateY(-4px) scale(1.06);
  box-shadow: 0 12px 30px var(--brand-glow);
}

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.notice-box {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  backdrop-filter: blur(14px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-left: 4px solid var(--brand);
  padding: 18px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 20px;
  box-shadow: 0 8px 26px var(--glass-shadow);
}

.notice-box p {
  margin-bottom: 0;
  color: var(--text-secondary);
  font-size: .94rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.tag {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  color: var(--brand-dark);
  border: 1px solid var(--border);
  padding: 5px 14px;
  border-radius: 20px;
  font-size: .85rem;
  font-weight: 600;
  transition: background .3s var(--ease), color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}

.tag:hover {
  background: var(--brand);
  color: var(--btn-text);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px var(--brand-glow);
}

[data-theme="dark"] .tag {
  color: var(--brand-light);
}

.author-box {
  display: flex;
  gap: 16px;
  align-items: center;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  backdrop-filter: blur(14px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  margin-top: 20px;
  box-shadow: 0 8px 26px var(--glass-shadow);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}

.author-box:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 36px var(--glass-shadow);
}

.author-box svg {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
  border-radius: 50%;
  box-shadow: 0 6px 18px var(--brand-glow);
}

.author-box h4 {
  margin-bottom: 4px;
  color: var(--text-primary);
}

.author-box p {
  margin-bottom: 0;
  font-size: .88rem;
  color: var(--text-secondary);
}

::selection {
  background: var(--brand);
  color: var(--btn-text);
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--surface-alt);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 6px;
  border: 2px solid var(--surface-alt);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--brand);
}

:focus-visible {
  outline: 3px solid var(--brand-glow);
  outline-offset: 2px;
  border-radius: 4px;
}

@media (max-width: 900px) {
  nav.main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--nav-bg);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    backdrop-filter: blur(20px) saturate(180%);
    flex-direction: column;
    padding: 80px 24px;
    box-shadow: -8px 0 32px var(--glass-shadow);
    transition: right .4s var(--ease);
    z-index: 1100;
    border-left: 1px solid var(--glass-border);
  }

  nav.main-nav.open {
    right: 0;
  }

  nav.main-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
  }

  .menu-toggle {
    display: flex;
  }

  .search-box input {
    width: 110px;
  }

  .banner-content h1 {
    font-size: 1.6rem;
  }

  h2 {
    font-size: 1.35rem;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

  .howto-step {
    flex-direction: column;
    gap: 12px;
  }
}

@media (max-width: 600px) {
  .top-bar .container {
    flex-direction: column;
    align-items: flex-start;
  }

  .search-box {
    display: none;
  }

  .banner-slides {
    min-height: 440px;
  }

  .banner-content h1 {
    font-size: 1.4rem;
  }

  h1 {
    font-size: 1.5rem;
  }

  .container {
    padding: 0 16px;
  }

  section {
    padding: 40px 0;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }

  .stat-num {
    font-size: 1.7rem;
  }

  .grid-3,
  .grid-2,
  .article-list,
  .contact-grid,
  .sitemap-cols,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .banner-btns {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .back-top {
    right: 16px;
    bottom: 16px;
    width: 42px;
    height: 42px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media print {
  header.site-header,
  .top-bar,
  .banner,
  .back-top,
  footer.site-footer {
    display: none;
  }

  body {
    background: #FFFFFF;
    color: #000000;
  }
}