:root {
  --hero-dark: linear-gradient(135deg, #101113, #1b1c20 58%, #0c0d10);
  --shadow-dark: 0 28px 70px rgba(0,0,0,0.28);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.lang-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
}
.lang-trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid rgba(0,0,0,0.10);
  background: rgba(255,255,255,0.78);
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
.lang-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 156px;
  padding: 8px;
  border-radius: 18px;
  border: 1px solid rgba(0,0,0,0.10);
  background: rgba(255,255,255,0.96);
  box-shadow: 0 18px 40px rgba(15,23,42,0.12);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.25s ease;
  z-index: 120;
}
.lang-switch.open .lang-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.lang-option {
  display: flex;
  align-items: center;
  width: 100%;
  min-height: 42px;
  padding: 0 12px;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
}
.lang-option:hover,
.lang-option.active {
  background: #f3f4f6;
}

.btn-white { background: #fff; color: var(--text); border-color: #fff; }
.btn-white:hover { background: rgba(255,255,255,0.92); transform: translateY(-1px); }
.btn-dark-outline { background: rgba(255,255,255,0.05); color: #fff; border-color: rgba(255,255,255,0.16); }
.btn-dark-outline:hover { background: rgba(255,255,255,0.08); transform: translateY(-1px); }

.section-head h1,
.section-head h2,
.cta-box h2 {
  line-height: 1.04;
  letter-spacing: -0.04em;
}

.hero {
  overflow: hidden;
  background: var(--hero-dark);
  color: #fff;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 18% 10%, rgba(255,255,255,0.09), transparent 22%),
    radial-gradient(circle at 82% 18%, rgba(255,255,255,0.08), transparent 18%);
}
.hero::after {
  content: "";
  position: absolute;
  right: 12%;
  top: 60px;
  width: 260px;
  height: 420px;
  transform: rotate(24deg);
  background: linear-gradient(180deg, rgba(255,255,255,0), rgba(255,255,255,0.16), rgba(255,255,255,0));
  filter: blur(52px);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 0.98fr 1.02fr;
  gap: 56px;
  align-items: center;
  min-height: calc(88vh - 76px);
  padding: 88px 0 96px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.06);
  color: rgba(255,255,255,0.76);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  backdrop-filter: blur(10px);
}
.hero-copy h1 {
  margin: 24px 0 0;
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.02;
  letter-spacing: -0.05em;
  font-weight: 600;
  color: #fff;
  max-width: 760px;
}
.hero-copy p {
  margin: 22px 0 0;
  max-width: 660px;
  font-size: 17px;
  line-height: 1.9;
  color: rgba(255,255,255,0.68);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 34px;
}

.hero-visual {
  position: relative;
  min-height: 580px;
}
.hero-visual-wrap {
  position: relative;
  height: 100%;
  border-radius: 34px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.04);
  box-shadow: var(--shadow-dark);
  overflow: hidden;
  backdrop-filter: blur(24px);
  padding: 22px;
}
.hero-main {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 536px;
  border-radius: 26px;
  border: 1px solid rgba(255,255,255,0.10);
  overflow: hidden;
  background: linear-gradient(180deg, rgba(255,255,255,0.10), rgba(255,255,255,0.02));
}
.hero-main::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.20), transparent 46%);
  z-index: 1;
  pointer-events: none;
}
.hero-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-badge {
  position: absolute;
  left: 26px;
  top: 26px;
  z-index: 3;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(17,17,17,0.42);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  backdrop-filter: blur(8px);
}
.hero-mini-row {
  position: absolute;
  left: 26px;
  right: 26px;
  bottom: 22px;
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.hero-mini-row span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.06);
  color: rgba(255,255,255,0.84);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  backdrop-filter: blur(10px);
  text-align: center;
}

.featured-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 22px;
}
.featured-side {
  display: grid;
  gap: 22px;
}

.category-grid,
.latest-grid,
.topic-grid,
.why-grid {
  display: grid;
  gap: 20px;
}
.category-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.latest-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.topic-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.why-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card,
.featured-main,
.featured-card,
.category-card,
.latest-card,
.topic-card,
.why-card,
.cta-box {
  border: 1px solid var(--line);
  border-radius: 30px;
  background: rgba(255,255,255,0.78);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  padding: 24px;
}
.hover-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.hover-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-2);
  border-color: rgba(0,0,0,0.12);
}

.article-image {
  position: relative;
  overflow: hidden;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #ffffff, #eef1f5);
  aspect-ratio: 16 / 10;
}
.article-image.large { aspect-ratio: 16 / 11; }
.article-image::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(17,17,17,0.14), transparent 45%);
  z-index: 1;
  pointer-events: none;
}
.article-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 18px;
}
.tag,
.topic-label,
.category-label {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.76);
  color: var(--text-4);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.date {
  font-size: 12px;
  color: var(--text-4);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.featured-main h3,
.featured-card h3,
.latest-card h3,
.topic-card h3,
.why-card h3,
.category-card h3,
.sidebar-card h3,
.news-item h3 {
  margin: 18px 0 0;
  font-size: clamp(20px, 2.2vw, 24px);
  line-height: 1.28;
  letter-spacing: -0.03em;
  font-weight: 500;
  color: var(--text);
}
.featured-card h3,
.latest-card h3,
.topic-card h3,
.why-card h3,
.category-card h3,
.sidebar-card h3,
.news-item h3 { font-size: clamp(20px, 2.2vw, 24px); }
.featured-main p,
.featured-card p,
.latest-card p,
.topic-card p,
.why-card p,
.category-card p,
.cta-box p {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--text-3);
}
.read-more {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  transition: gap 0.3s ease;
}
.read-more:hover { gap: 14px; }

.category-card {
  text-align: center;
  min-height: 100%;
  background: linear-gradient(180deg, #ffffff, #f5f6f8);
}
.category-card h3 { margin-top: 12px; }
.category-card p { margin-top: 10px; font-size: 13px; }

.topic-card {
  background: linear-gradient(180deg, #ffffff, #f5f6f8);
}

.why-card {
  background: linear-gradient(180deg, #ffffff, #f5f6f8);
}

.cta-box {
  position: relative;
  overflow: hidden;
  border-radius: 32px;
  border: 1px solid rgba(255,255,255,0.10);
  background: linear-gradient(135deg, #111111, #2a2a2a);
  color: #fff;
  padding: 56px 48px;
  box-shadow: 0 30px 70px rgba(0,0,0,0.20);
}
.cta-box::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.12;
  background-image: radial-gradient(rgba(255,255,255,0.14) 1px, transparent 1px);
  background-size: 24px 24px;
  mix-blend-mode: overlay;
  pointer-events: none;
}
.cta-inner {
  position: relative;
  z-index: 1;
  max-width: 860px;
}
.cta-box h2,
.cta-box p { color: #fff; }
.cta-box p { color: rgba(255,255,255,0.65); }
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 28px;
}
.cta-note {
  margin-top: 18px;
  font-size: 13px;
  line-height: 1.85;
  color: rgba(255,255,255,0.52);
}

.blog-layout {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}
.blog-sidebar,
.blog-list {
  display: grid;
  gap: 20px;
}
.sidebar-card,
.news-item {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(255,255,255,0.82);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}
.sidebar-card {
  padding: 24px;
}
.sidebar-card h3 {
  margin-top: 0;
}
.sidebar-card p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-3);
}
.sidebar-link-list {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}
.sidebar-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 50px;
  padding: 0 16px;
  border-radius: 16px;
  background: #f6f7f9;
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.25s ease;
}
.sidebar-link:hover {
  transform: translateX(2px);
  background: #eff2f6;
}
.news-item {
  padding: 22px;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 22px;
  align-items: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.news-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-2);
  border-color: rgba(0,0,0,0.12);
}
.news-item .article-image {
  aspect-ratio: 16 / 10;
  margin: 0;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  color: var(--text-4);
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.news-kicker {
  color: var(--text-4);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.news-item h3 {
  margin: 12px 0 0;
  line-height: 1.22;
  letter-spacing: -0.02em;
  font-weight: 600;
}
.news-item p {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--text-3);
}

.article-layout {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}
.article-sidebar {
  display: grid;
  gap: 20px;
  position: sticky;
  top: 104px;
}
.article-body {
  border: 1px solid var(--line);
  border-radius: 32px;
  background: rgba(255,255,255,0.82);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  overflow: hidden;
}
.article-body-inner {
  padding: 34px;
}
.article-header {
  max-width: 860px;
}
.article-header h1 {
  margin: 18px 0 0;
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.04;
  letter-spacing: -0.04em;
  font-weight: 600;
  color: var(--text);
}
.article-subtitle {
  margin: 18px 0 0;
  font-size: 17px;
  line-height: 1.9;
  color: var(--text-3);
  max-width: 820px;
}
.article-top-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 18px;
  color: var(--text-4);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 12px;
  color: var(--text-4);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.breadcrumb a:hover { color: var(--text); }
.article-cover {
  margin-top: 26px;
  border-radius: 28px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #ffffff, #eef1f5);
  aspect-ratio: 16 / 8.8;
}
.article-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.article-content {
  margin-top: 34px;
  display: grid;
  gap: 26px;
}
.article-content h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.12;
  letter-spacing: -0.03em;
  font-weight: 600;
  color: var(--text);
}
.article-content h3 {
  margin: 0;
  font-size: clamp(20px, 2.2vw, 24px);
  line-height: 1.26;
  letter-spacing: -0.02em;
  font-weight: 600;
  color: var(--text);
}
.article-content p,
.article-content li {
  margin: 0;
  font-size: 15px;
  line-height: 1.95;
  color: var(--text-3);
}
.article-content ul,
.article-content ol {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 10px;
}
.article-section {
  display: grid;
  gap: 14px;
}
.article-quote {
  padding: 24px 26px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #ffffff, #f6f7f9);
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-2);
}
.article-divider {
  height: 1px;
  background: var(--line-2);
  margin: 6px 0;
}
.article-table {
  display: grid;
  gap: 12px;
  margin-top: 4px;
}
.article-table-row {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 18px;
  padding: 16px 18px;
  border-radius: 18px;
  background: #f7f8fa;
  border: 1px solid var(--line);
}
.article-table-row strong {
  color: var(--text);
  font-size: 14px;
}
.sidebar-card small {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--text-4);
}
.toc-links {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}
.toc-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 48px;
  padding: 0 16px;
  border-radius: 16px;
  background: #f6f7f9;
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.25s ease;
}
.toc-link:hover {
  transform: translateX(2px);
  background: #eff2f6;
}
.related-mini-list {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}
.related-mini-item {
  display: grid;
  gap: 8px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-2);
}
.related-mini-item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}
.related-mini-item a {
  font-size: 15px;
  line-height: 1.6;
  font-weight: 600;
  color: var(--text);
}
.related-mini-item span {
  font-size: 12px;
  color: var(--text-4);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

@media (max-width: 1279px) {
  .featured-grid,
  .hero-grid,
  .category-grid,
  .topic-grid,
  .why-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .featured-grid,
  .hero-grid,
  .blog-layout,
  .news-item,
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; top: auto; }
}

@media (max-width: 991px) {
  .nav { display: none; }
  .header-actions { gap: 10px; }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .latest-grid,
  .category-grid,
  .topic-grid,
  .why-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 767px) {
  .section-pad { padding: 72px 0; }
  .hero-grid {
    min-height: auto;
    padding: 56px 0 64px;
    gap: 34px;
  }
  .hero-copy h1 {
    font-size: clamp(34px, 8vw, 50px);
    line-height: 1.08;
  }
  .hero-copy p { font-size: 15px; }
  .hero-actions,
  .cta-actions { flex-direction: column; }
  .hero-actions .btn,
  .cta-actions .btn { width: 100%; }
  .featured-side,
  .latest-grid,
  .category-grid,
  .topic-grid,
  .why-grid,
  .footer-grid,
  .hero-mini-row { grid-template-columns: 1fr; }
  .hero-main { min-height: 420px; }
  .featured-main,
  .featured-card,
  .category-card,
  .latest-card,
  .topic-card,
  .why-card,
  .cta-box,
  .hero-visual-wrap { padding-left: 20px; padding-right: 20px; }
  .cta-box { padding-top: 40px; padding-bottom: 40px; }
  .site-header .btn { display: none; }
  .site-header .lang-trigger { min-height: 40px; padding: 0 14px; font-size: 12px; }
  .article-body-inner { padding: 24px 20px; }
  .article-cover { aspect-ratio: 16 / 10; }
  .article-table-row { grid-template-columns: 1fr; gap: 10px; }
}