:root {
  --isd7-bg: #0b070d;
  --isd7-rail-bg: #150d19;
  --isd7-primary: #452b53;
  --isd7-accent: #39aa5d;
  --isd7-glass: rgba(69, 43, 83, 0.4);
  --isd7-glass-border: rgba(57, 170, 93, 0.2);
  --isd7-text: #e8e6ea;
  --isd7-text-muted: #a69ea9;
  --isd7-radius: 8px;
  --isd7-font-body: 'Inter', sans-serif;
  --isd7-font-display: 'Sora', sans-serif;
}

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

body.isd7-body {
  background-color: var(--isd7-bg);
  color: var(--isd7-text);
  font-family: var(--isd7-font-body);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6, .isd7-title, .isd7-section-title, .isd7-page-title {
  font-family: var(--isd7-font-display);
  font-weight: 600;
  color: #ffffff;
}

.isd7-portal {
  display: flex;
  min-height: 100vh;
  max-width: 1920px;
  margin: 0 auto;
}

.isd7-rail {
  width: 260px;
  background: var(--isd7-rail-bg);
  border-right: 1px solid var(--isd7-glass);
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  padding: 24px 16px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.isd7-main {
  flex: 1;
  min-width: 0;
  padding: 32px 40px;
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.isd7-brand {
  padding-bottom: 16px;
  border-bottom: 1px solid var(--isd7-glass);
}

.isd7-logo {
  font-family: var(--isd7-font-display);
  font-size: 26px;
  font-weight: 700;
  color: var(--isd7-accent);
  letter-spacing: 0.5px;
}

.isd7-nav-list, .isd7-breadcrumbs {
  list-style: none;
  display: flex;
}

.isd7-nav-list {
  flex-direction: column;
  gap: 8px;
}

.isd7-nav-item a {
  display: block;
  padding: 12px 16px;
  color: var(--isd7-text);
  text-decoration: none;
  border-radius: var(--isd7-radius);
  transition: background 0.2s, color 0.2s;
  font-size: 15px;
  font-weight: 500;
}

.isd7-nav-item a:hover {
  background: var(--isd7-primary);
  color: var(--isd7-accent);
}

.isd7-glass {
  background: var(--isd7-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--isd7-glass-border);
  border-radius: var(--isd7-radius);
}

.isd7-hero {
  position: relative;
  border-radius: var(--isd7-radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: var(--isd7-rail-bg);
  border: 1px solid var(--isd7-glass-border);
}

.isd7-hero-img-wrap {
  width: 100%;
  height: 380px;
}

.isd7-hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.7;
  display: block;
}

.isd7-hero-text {
  padding: 32px 40px;
  z-index: 2;
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  background: linear-gradient(to top, var(--isd7-rail-bg) 20%, transparent 100%);
}

.isd7-title {
  font-size: clamp(28px, 4vw, 42px);
  margin-bottom: 8px;
  line-height: 1.2;
}

.isd7-subtitle {
  font-size: 16px;
  color: var(--isd7-accent);
}

.isd7-ticker-wrap {
  width: 100%;
  overflow: hidden;
  background: var(--isd7-rail-bg);
  border: 1px solid var(--isd7-glass);
  border-radius: var(--isd7-radius);
  padding: 12px 0;
  white-space: nowrap;
}

.isd7-ticker-track {
  display: inline-block;
  animation: isd7-marquee 25s linear infinite;
}

.isd7-ticker-track:hover {
  animation-play-state: paused;
}

@keyframes isd7-marquee {
  0% { transform: translateX(100%); }
  100% { transform: translateX(-100%); }
}

.isd7-ticker-item {
  display: inline-block;
  padding: 0 24px;
  font-size: 14px;
}

.isd7-ticker-item a {
  color: var(--isd7-accent);
  text-decoration: none;
}

.isd7-ticker-item a:hover {
  text-decoration: underline;
}

.isd7-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.isd7-stat-box {
  background: var(--isd7-glass);
  border: 1px solid var(--isd7-glass-border);
  border-radius: var(--isd7-radius);
  padding: 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.isd7-stat-num {
  font-family: var(--isd7-font-display);
  font-size: 28px;
  color: var(--isd7-accent);
  line-height: 1;
}

.isd7-stat-label {
  font-size: 13px;
  color: var(--isd7-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.isd7-section-title {
  font-size: 24px;
  margin-bottom: 24px;
  border-left: 4px solid var(--isd7-accent);
  padding-left: 12px;
}

.isd7-filters {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--isd7-primary) transparent;
}

.isd7-filters::-webkit-scrollbar {
  height: 6px;
}
.isd7-filters::-webkit-scrollbar-thumb {
  background: var(--isd7-primary);
  border-radius: 4px;
}

.isd7-chip {
  background: var(--isd7-rail-bg);
  border: 1px solid var(--isd7-glass);
  color: var(--isd7-text);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
  font-family: var(--isd7-font-body);
}

.isd7-chip:hover, .isd7-chip-active {
  background: var(--isd7-primary);
  border-color: var(--isd7-accent);
  color: #fff;
}

.isd7-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}

.isd7-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease, border-color 0.2s;
  overflow: hidden;
}

.isd7-card:hover {
  transform: translateY(-4px);
  border-color: var(--isd7-accent);
}

.isd7-card-img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-bottom: 1px solid var(--isd7-glass);
}

.isd7-card-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.isd7-card-badge {
  display: inline-block;
  padding: 4px 8px;
  font-size: 12px;
  font-weight: 600;
  background: var(--isd7-primary);
  border-radius: 4px;
  align-self: flex-start;
  color: var(--isd7-accent);
}

.isd7-card-title {
  font-size: 16px;
  color: #fff;
}

.isd7-card-sub {
  font-size: 13px;
  color: var(--isd7-text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.isd7-benefit-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.isd7-benefit-card {
  padding: 24px;
}

.isd7-benefit-title {
  font-size: 18px;
  margin-bottom: 12px;
  color: var(--isd7-accent);
}

.isd7-benefit-desc {
  font-size: 14px;
  color: var(--isd7-text-muted);
}

.isd7-step-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.isd7-step {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.isd7-step-num {
  flex: 0 0 44px;
  height: 44px;
  background: var(--isd7-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-family: var(--isd7-font-display);
  font-weight: 700;
  font-size: 18px;
  border: 2px solid var(--isd7-accent);
}

.isd7-step-text h3 {
  font-size: 18px;
  margin-bottom: 6px;
}

.isd7-step-text p {
  font-size: 15px;
  color: var(--isd7-text-muted);
}

.isd7-table-wrap {
  overflow-x: auto;
  background: var(--isd7-glass);
  border: 1px solid var(--isd7-glass-border);
  border-radius: var(--isd7-radius);
}

.isd7-table {
  width: 100%;
  min-width: 600px;
  border-collapse: collapse;
}

.isd7-table th, .isd7-table td {
  padding: 16px;
  text-align: left;
  border-bottom: 1px solid var(--isd7-glass);
  font-size: 15px;
}

.isd7-table th {
  background: var(--isd7-primary);
  color: #fff;
}

.isd7-table tr:hover td {
  background: rgba(255,255,255,0.02);
}

.isd7-payments-sub {
  margin-bottom: 16px;
  font-size: 15px;
}

.isd7-payment-chips {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.isd7-pay-chip {
  background: var(--isd7-rail-bg);
  border: 1px solid var(--isd7-glass);
  padding: 10px 20px;
  border-radius: var(--isd7-radius);
  font-size: 14px;
  font-weight: 500;
}

.isd7-breadcrumbs-wrap {
  margin-bottom: 16px;
  overflow-x: auto;
}

.isd7-breadcrumbs {
  display: flex;
  gap: 8px;
  align-items: center;
  white-space: nowrap;
  font-size: 14px;
}

.isd7-crumb-item a {
  color: var(--isd7-accent);
  text-decoration: none;
}

.isd7-crumb-item::after {
  content: '/';
  margin-left: 8px;
  color: var(--isd7-text-muted);
}

.isd7-crumb-item:last-child::after {
  display: none;
}

.isd7-page-header {
  margin-bottom: 16px;
}

.isd7-page-title {
  font-size: clamp(26px, 3vw, 36px);
  margin-bottom: 12px;
}

.isd7-meta {
  font-size: 15px;
  color: var(--isd7-text-muted);
}

.isd7-article {
  color: var(--isd7-text);
  font-size: 16px;
  line-height: 1.8;
  background: var(--isd7-glass);
  border: 1px solid var(--isd7-glass-border);
  border-radius: var(--isd7-radius);
  padding: 32px;
}

.isd7-article h2, .isd7-article h3, .isd7-article h4 {
  font-family: var(--isd7-font-display);
  color: #fff;
  margin: 32px 0 16px;
}

.isd7-article p {
  margin-bottom: 16px;
}

.isd7-article ul, .isd7-article ol {
  margin: 0 0 16px 24px;
  padding-left: 8px;
}

.isd7-article li {
  margin-bottom: 8px;
}

.isd7-article table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
  display: block;
  overflow-x: auto;
}

.isd7-article th, .isd7-article td {
  border: 1px solid var(--isd7-glass-border);
  padding: 12px;
  text-align: left;
  font-size: 15px;
}

.isd7-article th {
  background: var(--isd7-primary);
}

.isd7-article figure img {
  max-width: 100%;
  height: auto;
  border-radius: var(--isd7-radius);
  display: block;
  margin: 16px 0;
}

.isd7-article blockquote {
  border-left: 4px solid var(--isd7-accent);
  padding: 16px;
  background: var(--isd7-rail-bg);
  margin: 24px 0;
  font-style: italic;
}

.isd7-faq-wrapper {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.isd7-faq-item {
  background: var(--isd7-glass);
  border: 1px solid var(--isd7-glass-border);
  border-radius: var(--isd7-radius);
  overflow: hidden;
}

.isd7-faq-item summary {
  padding: 16px 24px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 16px;
  color: #fff;
}

.isd7-faq-item summary::-webkit-details-marker {
  display: none;
}

.isd7-faq-item summary::after {
  content: '+';
  color: var(--isd7-accent);
  font-size: 20px;
  font-weight: 400;
}

.isd7-faq-item[open] summary::after {
  content: '-';
}

.isd7-faq-item-content {
  padding: 0 24px 20px;
  color: var(--isd7-text-muted);
  font-size: 15px;
  line-height: 1.7;
}

.isd7-pagination {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 16px;
}

.isd7-pager-link {
  padding: 10px 20px;
  color: #fff;
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: all 0.2s;
}

.isd7-pager-link:hover {
  background: var(--isd7-primary);
  border-color: var(--isd7-accent);
}

.isd7-related-posts {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.isd7-footer {
  border-top: 1px solid var(--isd7-glass);
  padding-top: 32px;
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-align: center;
}

.isd7-footer-links a {
  color: var(--isd7-accent);
  text-decoration: none;
  margin: 0 8px;
  font-size: 14px;
}

.isd7-footer-links a:hover {
  text-decoration: underline;
}

.isd7-legal, .isd7-copy {
  font-size: 13px;
  color: var(--isd7-text-muted);
}

.isd7-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.isd7-reveal.isd7-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 900px) {
  .isd7-portal {
    flex-direction: column;
  }
  .isd7-rail {
    width: 100%;
    height: auto;
    position: relative;
    border-right: none;
    border-bottom: 1px solid var(--isd7-glass);
    padding: 16px;
    gap: 16px;
  }
  .isd7-nav-rail {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 8px;
  }
  .isd7-nav-list {
    flex-direction: row;
  }
  .isd7-nav-item {
    flex: 0 0 auto;
  }
  .isd7-main {
    padding: 24px 16px;
    gap: 32px;
  }
  .isd7-hero-img-wrap {
    height: 240px;
  }
  .isd7-hero-text {
    position: relative;
    background: none;
    padding: 24px;
  }
  .isd7-hero {
    flex-direction: column-reverse;
    background: var(--isd7-glass);
  }
  .isd7-article {
    padding: 20px 16px;
  }
}