:root {
  --primary: #3b82f6;
  --primary-dark: #1d4ed8;
  --primary-light: #eff6ff;
  --download: #10b981;
  --download-dark: #047857;
  --download-light: #ecfdf5;
  --bg: #0f172a;
  --card: #1e293b;
  --text: #f8fafc;
  --muted: #94a3b8;
  --border: #334155;
  --soft: #1e293b;
  --yellow: #f59e0b;
  --danger: #f43f5e;
  --glass: rgba(30, 41, 59, 0.7);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

.site-header {
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.topbar {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.logo-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), #60a5fa);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 20px;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 15px;
  font-weight: 500;
  color: var(--muted);
}

.nav a:hover {
  color: #fff;
}

.header-search {
  max-width: 280px;
  flex: 1;
}

.header-search input,
.searchbox input,
.form-control {
  width: 100%;
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(15, 23, 42, 0.6);
  color: #fff;
  outline: none;
  font-size: 14px;
  transition: all 0.2s ease;
}

.header-search input::placeholder,
.searchbox input::placeholder,
.form-control::placeholder {
  color: #64748b;
}

.header-search input:focus,
.searchbox input:focus,
.form-control:focus {
  border-color: var(--primary);
  background: rgba(15, 23, 42, 0.8);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.section {
  margin: 32px 0;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
  border-left: 4px solid var(--primary);
  padding-left: 12px;
}

.section-title {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.page-title {
  margin: 0 0 12px;
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.view-more {
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
}

.view-more:hover {
  color: #60a5fa;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  padding: 12px 20px;
  font-weight: 700;
  font-size: 14px;
  border: 0;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-download {
  background: var(--download);
  color: #fff;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
}

.btn-download:hover {
  background: var(--download-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(16, 185, 129, 0.4);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(59, 130, 246, 0.4);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-outline:hover {
  background: var(--border);
  border-color: var(--muted);
}

.muted {
  color: var(--muted);
  font-size: 14px;
}

.stars {
  color: var(--yellow);
  letter-spacing: 1px;
}

.hero {
  background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.15), transparent 45%),
              radial-gradient(circle at bottom left, rgba(16, 185, 129, 0.05), transparent 40%),
              var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 64px 0;
}

.hero-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.15;
  background: linear-gradient(to right, #fff, var(--muted));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  margin: 0 auto 32px;
  max-width: 640px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
}

.searchbox {
  display: flex;
  gap: 10px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 6px;
  max-width: 640px;
  margin: 0 auto;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.searchbox input {
  border: 0;
  background: transparent;
  padding-left: 12px;
  font-size: 15px;
}

.searchbox input:focus {
  background: transparent;
  box-shadow: none;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  align-items: center;
  margin-top: 24px;
  color: var(--muted);
  font-size: 13px;
}

.chips strong {
  color: var(--text);
}

.chips a {
  padding: 5px 12px;
  border-radius: 20px;
  background: rgba(30, 41, 59, 0.5);
  border: 1px solid var(--border);
}

.chips a:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  transform: translateY(-1px);
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 28px;
  align-items: start;
}

.main-content,
.sidebar {
  display: grid;
  gap: 28px;
}

.main-content {
  min-width: 0;
}

.sidebar {
  width: 100%;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
}

.category {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px 12px;
  text-align: center;
}

.category:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.1);
}

.cat-icon {
  width: 44px;
  height: 44px;
  margin: 0 auto 10px;
  border-radius: 10px;
  background: rgba(59, 130, 246, 0.1);
  color: var(--primary);
  display: grid;
  place-items: center;
  font-size: 20px;
}

.category strong {
  display: block;
  font-size: 13px;
  color: #fff;
  margin-bottom: 2px;
}

.category span {
  color: var(--muted);
  font-size: 11px;
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.app-card {
  display: flex;
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--card);
}

.app-card:hover {
  border-color: var(--border);
  background: rgba(30, 41, 59, 0.8);
  transform: translateY(-1px);
}

.app-icon,
.rank-icon,
.detail-icon,
.big-icon {
  overflow: hidden;
  border-radius: 12px;
  flex-shrink: 0;
}

.app-icon img,
.rank-icon img,
.detail-icon img,
.big-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.app-icon {
  width: 60px;
  height: 60px;
  background: rgba(15, 23, 42, 0.4);
}

.app-body {
  min-width: 0;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.app-body h3 {
  margin: 0 0 3px;
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  line-height: 1.3;
}

.app-meta {
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.app-desc {
  color: var(--muted);
  font-size: 12px;
  margin: 0 0 8px 0;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.app-action {
  display: inline-block;
  color: var(--download);
  font-weight: 700;
  font-size: 12px;
}

.app-card:hover .app-action {
  color: #34d399;
}

.feature-box {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 24px;
  align-items: center;
  background: linear-gradient(135deg, var(--card), rgba(30, 41, 59, 0.5));
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px;
}

.feature-visual {
  min-height: 200px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: radial-gradient(circle at center, rgba(59, 130, 246, 0.1), transparent),
              var(--bg);
  display: grid;
  place-items: center;
}

.big-icon {
  width: 96px;
  height: 96px;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--primary), #60a5fa);
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.25);
}

.btn-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.breadcrumb {
  padding: 16px 0;
  color: var(--muted);
  font-size: 13px;
}

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

.detail-hero {
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.detail-icon {
  width: 110px;
  height: 110px;
  border-radius: 22px;
  background: var(--bg);
  border: 1px solid var(--border);
}

.detail-title {
  margin: 0 0 6px;
  font-size: 26px;
  font-weight: 800;
  line-height: 1.2;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
}

.spec-table tr {
  border-bottom: 1px solid var(--border);
}

.spec-table tr:last-child {
  border-bottom: 0;
}

.spec-table td {
  padding: 14px 4px;
  font-size: 14px;
}

.spec-table td:first-child {
  color: var(--muted);
  width: 35%;
}

.spec-table td:last-child {
  font-weight: 600;
  color: #fff;
}

.proscons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.proscons ul {
  margin: 0;
  padding-left: 20px;
}

.proscons li {
  margin-bottom: 8px;
  font-size: 14px;
}

.pros h3 {
  color: var(--download);
  font-size: 16px;
  font-weight: 700;
  margin-top: 0;
}

.cons h3 {
  color: var(--danger);
  font-size: 16px;
  font-weight: 700;
  margin-top: 0;
}

.screenshots {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  padding-bottom: 12px;
}

.shot {
  min-width: 160px;
  aspect-ratio: 9/16;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg);
  overflow: hidden;
}

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

.mock-line {
  height: 10px;
  background: var(--border);
  border-radius: 5px;
  margin-bottom: 10px;
}

.mock-box {
  height: 60px;
  border-radius: 8px;
  background: rgba(59, 130, 246, 0.1);
  margin: 12px 0;
}

.rank-list,
.link-list {
  display: grid;
  gap: 12px;
}

.rank-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px;
  border-radius: 10px;
}

.rank-item:hover {
  background: rgba(255, 255, 255, 0.03);
}

.rank-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--border);
  color: var(--muted);
  display: grid;
  place-items: center;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
}

.rank-item:nth-child(1) .rank-num {
  background: #fef3c7;
  color: #92400e;
}

.rank-item:nth-child(2) .rank-num {
  background: #e2e8f0;
  color: #334155;
}

.rank-item:nth-child(3) .rank-num {
  background: #ffedd5;
  color: #ea580c;
}

.rank-icon {
  width: 40px;
  height: 40px;
  background: rgba(15, 23, 42, 0.4);
}

.rank-text strong {
  display: block;
  font-size: 13px;
  color: #fff;
}

.rank-text span {
  color: var(--muted);
  font-size: 11px;
}

.link-list a {
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
}

.link-list a:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.link-list a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.article {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}

.article:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

.article-thumb {
  height: 120px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(16, 185, 129, 0.1));
  display: grid;
  place-items: center;
  font-size: 32px;
}

.article-body {
  padding: 16px;
}

.article-body h3 {
  margin: 0 0 6px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  line-height: 1.4;
}

.article-body p {
  color: var(--muted);
  font-size: 12px;
  margin: 0;
}

.content h2 {
  margin-top: 24px;
  font-size: 20px;
  font-weight: 700;
}

.content p,
.content li {
  color: #cbd5e1;
  font-size: 14px;
  line-height: 1.7;
}

.notice {
  background: rgba(245, 158, 11, 0.05);
  border: 1px solid rgba(245, 158, 11, 0.2);
  color: #f59e0b;
  border-radius: 12px;
  padding: 16px;
  font-size: 13px;
}

details {
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}

details:last-child {
  border-bottom: 0;
}

summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
  color: #fff;
  outline: none;
}

.form {
  display: grid;
  gap: 12px;
}

.form-control {
  border-radius: 8px;
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

.site-footer {
  margin-top: 48px;
  background: var(--card);
  border-top: 1px solid var(--border);
  padding: 48px 0 32px 0;
  color: var(--muted);
  font-size: 13px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 32px;
}

.footer-logo {
  color: #fff;
  font-weight: 800;
  font-size: 20px;
  margin-bottom: 12px;
}

.footer-col h4 {
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  margin: 0 0 14px 0;
}

.footer-col a {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
}

.footer-col a:hover {
  color: var(--primary);
}

.copyright {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  font-size: 12px;
}

.copyright p {
  margin: 0 0 8px 0;
}

@media (min-width: 1024px) {
  .sidebar {
    position: sticky;
    top: 96px;
  }
}

@media (max-width: 1024px) {
  .content-grid {
    grid-template-columns: 1fr;
  }

  .category-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .feature-box {
    grid-template-columns: 1fr;
  }

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

  .app-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .topbar {
    height: auto;
    padding: 14px 0;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
  }

  .nav {
    order: 3;
    flex-basis: 100%;
    justify-content: center;
    gap: 16px;
  }

  .header-search {
    display: none;
  }

  .searchbox {
    flex-direction: column;
    padding: 6px;
    background: transparent;
    border: 0;
    box-shadow: none;
    gap: 8px;
  }

  .searchbox input {
    background: var(--card);
    border: 1px solid var(--border);
    padding: 12px;
    border-radius: 10px;
  }

  .searchbox button {
    width: 100%;
  }

  .app-grid,
  .article-grid,
  .proscons {
    grid-template-columns: 1fr;
  }

  .detail-hero {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .detail-icon {
    width: 90px;
    height: 90px;
  }

  .page-title {
    font-size: 24px;
  }

  .section-title {
    font-size: 18px;
  }

  .card {
    padding: 16px;
  }
}

@media (max-width: 480px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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