:root {
  --bg: #fafafa;
  --bg-card: #ffffff;
  --bg-subtle: #f5f5f5;
  --text: #1a1a1a;
  --text-secondary: #5c5c5c;
  --text-tertiary: #8a8a8a;
  --border: #e5e5e5;
  --border-light: #eeeeee;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-soft: #eff4ff;
  --green: #16a34a;
  --green-soft: #dcfce7;
  --radius-xs: 3px;
  --radius-sm: 5px;
  --radius: 7px;
  --radius-md: 8px;
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.03);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.08);
  --transition: 0.2s cubic-bezier(0.3, 0, 0.2, 1);
  --font: Inter, "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "SF Mono", "JetBrains Mono", "Fira Code", "Cascadia Code", Menlo, Consolas, monospace;
  --max-width: 1120px;
  --nav-height: 56px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-width: 320px;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border);
  background: #ffffff;
  transition: box-shadow var(--transition);
}

.navbar.scrolled {
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.06);
}

.nav-inner {
  width: 100%;
  max-width: var(--max-width);
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.nav-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  color: var(--text);
  letter-spacing: 0;
}

.logo-image {
  display: block;
  width: 168px;
  height: auto;
  max-height: 42px;
  flex-shrink: 0;
  object-fit: contain;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 800;
}

.nav-links,
.nav-actions {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-links a,
.nav-actions a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0;
  white-space: nowrap;
  transition: var(--transition);
}

.nav-actions a {
  padding-inline: 10px;
  color: var(--text-tertiary);
}

.nav-links a:hover,
.nav-actions a:hover {
  background: #f5f5f5;
  color: var(--text);
}

.nav-links a.active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

.tanz-member-entry {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 36px;
}

.tanz-member-auth-links {
  display: inline-flex;
  align-items: center;
  gap: 2px;
}

.tanz-member-menu {
  position: relative;
}

.tanz-member-trigger {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 36px;
  padding: 2px 8px 2px 3px;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.tanz-member-trigger:hover,
.tanz-member-menu:hover .tanz-member-trigger {
  background: #f5f5f5;
  color: var(--text);
}

.tanz-member-avatar {
  display: inline-flex;
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border: 1px solid var(--border-light);
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 800;
  line-height: 1;
}

.tanz-member-avatar img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.tanz-member-name {
  max-width: 72px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tanz-member-caret {
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  opacity: 0.7;
  transform: rotate(45deg) translateY(-2px);
}

.tanz-member-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 1010;
  width: 168px;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-4px);
  transition: var(--transition);
}

.tanz-member-menu:hover .tanz-member-dropdown,
.tanz-member-menu:focus-within .tanz-member-dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.tanz-member-dropdown-head {
  margin: 0 2px 6px;
  padding: 4px 6px 8px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 700;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-actions .tanz-member-dropdown a,
.tanz-member-dropdown button {
  display: flex;
  width: 100%;
  min-height: 32px;
  align-items: center;
  padding: 7px 8px;
  border: 0;
  border-radius: var(--radius-xs);
  background: transparent;
  color: var(--text-secondary);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
}

.nav-actions .tanz-member-dropdown a:hover,
.tanz-member-dropdown button:hover {
  background: var(--bg-subtle);
  color: var(--text);
}

.tanz-member-dropdown form {
  margin: 2px 0 0;
  padding-top: 2px;
  border-top: 1px solid var(--border-light);
}

.hamburger {
  z-index: 1001;
  display: none;
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 6px;
  border: 0;
  border-radius: var(--radius-xs);
  background: transparent;
  cursor: pointer;
  transition: var(--transition);
}

.hamburger:hover {
  background: #f5f5f5;
}

.hamburger span {
  display: block;
  width: 18px;
  height: 1.5px;
  border-radius: 1px;
  background: var(--text);
  transform-origin: center;
  transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
  transform: translateY(5.5px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-5.5px) rotate(-45deg);
}

.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 998;
  display: none;
  background: rgba(0, 0, 0, 0.3);
}

.nav-overlay.show {
  display: block;
}

.section {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding-inline: 24px;
}

.section-spacing {
  padding-top: 72px;
  padding-bottom: 72px;
}

.section-spacing.slim {
  padding-top: 52px;
}

.section-spacing.slim-top,
.section-spacing.compact {
  padding-top: 0;
}

.section-header {
  max-width: 640px;
  margin: 0 auto 44px;
  text-align: center;
}

.section-header.align-left {
  max-width: none;
  margin-inline: 0;
  text-align: left;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-bottom: 12px;
  padding: 4px 12px;
  border-radius: var(--radius-xs);
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0;
}

.section-title {
  margin-bottom: 8px;
  color: var(--text);
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1.2;
}

.section-desc,
.section-header p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.hero-wrapper {
  position: relative;
  z-index: 1;
  padding-top: 80px;
  padding-bottom: 64px;
  border-bottom: 1px solid var(--border-light);
  background: #ffffff;
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 1fr);
  gap: 52px;
  align-items: center;
}

.hero-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.hero-pill {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  background: #ffffff;
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 600;
  animation: fadeUp 0.5s ease-out;
}

.live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 2.2s infinite;
}

.hero-title {
  color: var(--text);
  font-size: 2.8rem;
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.1;
  animation: fadeUp 0.5s ease-out 0.06s both;
}

.accent-text {
  color: var(--accent);
}

.hero-desc {
  max-width: 470px;
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  animation: fadeUp 0.5s ease-out 0.12s both;
}

.hero-actions,
.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-actions {
  animation: fadeUp 0.5s ease-out 0.18s both;
}

.hero-actions.center {
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 40px;
  padding: 10px 20px;
  border: 0;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.4;
  white-space: nowrap;
  transition: all var(--transition);
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.35);
  transform: translateY(-1px);
}

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

.btn-outline:hover {
  border-color: #c5c5c5;
  background: #fafafa;
  box-shadow: var(--shadow-xs);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding-inline: 14px;
}

.btn-ghost:hover {
  background: #f5f5f5;
  color: var(--text);
}

.btn.full {
  width: 100%;
}

.hero-visual {
  display: flex;
  justify-content: center;
  animation: fadeUp 0.6s ease-out 0.22s both;
}

.preview-card {
  width: 100%;
  max-width: 460px;
  overflow: hidden;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  background: #ffffff;
  box-shadow: var(--shadow-lg);
  transition: box-shadow var(--transition);
}

.preview-card:hover {
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
}

.preview-topbar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid #eeeeee;
  background: #f9f9f9;
}

.preview-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.preview-dot.c1 {
  background: #ef4444;
}

.preview-dot.c2 {
  background: #f59e0b;
}

.preview-dot.c3 {
  background: #22c55e;
}

.preview-url {
  flex: 1;
  margin: 0 12px;
  padding: 4px 8px;
  border: 1px solid #eeeeee;
  border-radius: 3px;
  background: #ffffff;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-align: center;
}

.preview-body {
  min-height: 240px;
  display: flex;
  gap: 10px;
  padding: 18px 20px;
  background: #fdfdfd;
}

.preview-sidebar {
  width: 72px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border: 1px solid #eeeeee;
  border-radius: var(--radius-xs);
  background: #ffffff;
}

.preview-sidebar span {
  height: 7px;
  border-radius: 2px;
  background: #e5e5e5;
}

.preview-sidebar .highlight {
  width: 55%;
  background: var(--accent);
}

.preview-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px;
  border: 1px solid #eeeeee;
  border-radius: var(--radius-xs);
  background: #ffffff;
}

.preview-row {
  display: flex;
  gap: 6px;
}

.preview-row span {
  height: 18px;
  flex: 1;
  border: 1px solid #f0f0f0;
  border-radius: 2px;
  background: #f5f5f5;
}

.preview-row .wide {
  flex: 2;
}

.preview-row .short {
  flex: 0.5;
}

.stats-row {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  transform: translateY(-26px);
}

.stat-card,
.bento-card,
.article-card,
.section-card,
.side-block,
.article-detail,
.download-card,
.license-card,
.list-item,
.empty-box {
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: var(--shadow-xs);
}

.stat-card {
  padding: 24px 18px;
  text-align: center;
  transition: all var(--transition);
}

.stat-card:hover,
.bento-card:hover,
.article-card:hover,
.section-card:hover,
.list-item:hover {
  border-color: #d5d5d5;
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.stat-value {
  margin-bottom: 4px;
  color: var(--text);
  font-size: 1.8rem;
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1;
}

.stat-value.text-value {
  font-size: 1.35rem;
  font-weight: 700;
}

.stat-label {
  color: var(--text-tertiary);
  font-size: 0.8rem;
  font-weight: 500;
}

.bento-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.section .bento-grid {
  padding: 0;
}

.bento-card {
  position: relative;
  padding: 24px 20px;
  transition: all var(--transition);
}

.bento-card.featured {
  grid-column: span 2;
  border-color: #e0e8f8;
  background: #fafcff;
}

.card-icon {
  width: 36px;
  height: 32px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xs);
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
}

.bento-card h3,
.license-card h2 {
  margin-bottom: 4px;
  color: var(--text);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0;
}

.bento-card h3 a:hover,
.article-title:hover,
.side-block a:hover {
  color: var(--accent);
}

.bento-card p,
.article-card p,
.list-item p,
.license-card p {
  color: var(--text-tertiary);
  font-size: 0.84rem;
  line-height: 1.6;
}

.tech-section-bg {
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  background: #ffffff;
}

.tech-grid {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.tech-item {
  padding: 16px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: #fafafa;
  text-align: center;
  transition: all var(--transition);
}

.tech-item:hover {
  border-color: var(--border);
  background: #ffffff;
  box-shadow: var(--shadow-sm);
}

.tech-name {
  margin-bottom: 2px;
  color: var(--text);
  font-size: 0.85rem;
  font-weight: 700;
}

.tech-ver {
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.section-card-grid,
.article-grid,
.license-grid {
  display: grid;
  gap: 12px;
}

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

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

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

.section-card,
.article-card {
  display: block;
  padding: 22px 20px;
  transition: all var(--transition);
}

.section-card strong,
.article-title {
  display: block;
  color: var(--text);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.45;
}

.section-card span {
  display: block;
  margin-top: 6px;
  color: var(--text-tertiary);
  font-size: 0.84rem;
  line-height: 1.6;
}

.article-card-meta,
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
  color: var(--text-tertiary);
  font-size: 0.76rem;
}

.page-hero {
  padding: 72px 0 56px;
  border-bottom: 1px solid var(--border-light);
  background: #ffffff;
  text-align: center;
}

.page-hero h1,
.not-found h1 {
  margin-bottom: 10px;
  color: var(--text);
  font-size: 2.35rem;
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.15;
}

.page-hero p,
.not-found p {
  max-width: 620px;
  margin: 0 auto;
  color: var(--text-secondary);
  font-size: 0.98rem;
}

.content-layout,
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 24px;
  padding-top: 56px;
  padding-bottom: 72px;
}

.article-layout {
  align-items: start;
}

.article-list {
  display: grid;
  gap: 12px;
}

.list-item {
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr);
  gap: 18px;
  padding: 20px;
  transition: all var(--transition);
}

.compact-list .list-item {
  grid-template-columns: 72px minmax(0, 1fr);
}

.list-item-date {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
}

.list-item-body .article-title {
  margin-bottom: 6px;
}

.article-detail {
  overflow: hidden;
  padding: 34px 34px 40px;
  box-shadow: var(--shadow-sm);
}

.article-head {
  margin-bottom: 28px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--border-light);
}

.article-head h1 {
  margin-bottom: 12px;
  color: var(--text);
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.24;
}

.content {
  color: #2a2a2a;
  font-size: 0.96rem;
  line-height: 1.85;
}

.content p,
.content ul,
.content ol,
.content blockquote,
.content pre,
.content table,
.content h2,
.content h3 {
  margin-bottom: 18px;
}

.content h2,
.content h3 {
  margin-top: 28px;
  color: var(--text);
  line-height: 1.35;
}

.content h2 {
  font-size: 1.35rem;
}

.content h3 {
  font-size: 1.08rem;
}

.content a {
  color: var(--accent);
}

.content img {
  height: auto;
  border-radius: var(--radius);
}

.content pre,
.content code {
  font-family: var(--font-mono);
}

.content pre {
  overflow-x: auto;
  padding: 16px;
  border-radius: var(--radius);
  background: #1a1a1a;
  color: #e5e7eb;
}

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

.content th,
.content td {
  padding: 10px 12px;
  border: 1px solid var(--border);
}

.page-side {
  display: grid;
  gap: 12px;
  align-content: start;
}

.side-block {
  padding: 18px;
}

.side-block h2 {
  margin-bottom: 12px;
  color: var(--text);
  font-size: 0.96rem;
}

.side-block a,
.side-block span {
  display: block;
  padding: 8px 0;
  border-top: 1px solid var(--border-light);
  color: var(--text-secondary);
  font-size: 0.84rem;
}

.side-block a.active {
  color: var(--accent);
  font-weight: 700;
}

.side-price {
  margin-bottom: 12px;
  color: var(--accent);
  font-size: 1.4rem;
  font-weight: 800;
}

.status-pill {
  display: inline-flex;
  width: fit-content;
  padding: 4px 10px;
  border: 1px solid #bbf7d0;
  border-radius: var(--radius-xs);
  background: var(--green-soft);
  color: #15803d;
  font-size: 0.78rem;
  font-weight: 700;
}

.order-delivery-list {
  display: grid;
  gap: 10px;
}

.order-delivery-item {
  padding: 12px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  background: var(--bg-subtle);
}

.order-delivery-item strong,
.order-delivery-item span {
  display: block;
}

.order-delivery-item pre {
  white-space: pre-wrap;
}

.hero-search {
  max-width: 520px;
  margin: 22px auto 0;
  display: flex;
  gap: 8px;
}

.hero-search input {
  min-width: 0;
  flex: 1;
  height: 42px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #ffffff;
  color: var(--text);
  font: inherit;
}

.hero-search input:focus {
  outline: 2px solid rgba(37, 99, 235, 0.18);
  border-color: var(--accent);
}

.hero-search button {
  height: 42px;
  padding: 0 18px;
  border: 0;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: #ffffff;
  font-weight: 700;
  cursor: pointer;
}

.search-hot-keywords {
  max-width: 620px;
  margin: 14px auto 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.search-hot-keywords a {
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  background: #ffffff;
  color: var(--text-secondary);
  font-size: 0.78rem;
}

.env-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 7px;
  margin: 16px 0;
}

.env-chip {
  display: inline-block;
  padding: 5px 11px;
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  background: #f5f5f5;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  white-space: nowrap;
}

.download-card {
  max-width: 600px;
  margin: 0 auto;
  padding: 40px 32px;
  text-align: center;
  box-shadow: var(--shadow);
}

.download-card.wide-card {
  max-width: 760px;
}

.download-card h2 {
  margin-bottom: 6px;
  font-size: 1.25rem;
}

.download-card p {
  color: var(--text-secondary);
}

.code-box {
  position: relative;
  overflow-x: auto;
  margin: 16px 0;
  padding: 14px 16px;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  background: #1a1a1a;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  color: #d4d4d4;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-align: left;
  white-space: nowrap;
  transition: all var(--transition);
}

.code-box:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.14);
}

.prompt {
  color: #4ade80;
  font-weight: 600;
  user-select: none;
}

.copy-tip {
  position: absolute;
  top: 50%;
  right: 10px;
  padding: 3px 8px;
  border-radius: 3px;
  background: #2a2a2a;
  color: #999999;
  font-family: var(--font);
  font-size: 0.65rem;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-50%);
  transition: opacity var(--transition);
}

.code-box:hover .copy-tip {
  opacity: 1;
}

.download-actions {
  justify-content: center;
  margin-top: 12px;
}

.license-card {
  padding: 32px 24px;
  text-align: center;
}

.license-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-bottom: 10px;
  padding: 4px 14px;
  border-radius: var(--radius-xs);
  background: var(--green-soft);
  color: #15803d;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
}

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

.empty-box {
  padding: 28px 20px;
  color: var(--text-tertiary);
  font-size: 0.9rem;
  text-align: center;
}

.tanz-form-layout {
  padding-top: 56px;
  padding-bottom: 72px;
}

.tanz-form-panel {
  max-width: 720px;
  margin: 0 auto;
  padding: 34px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: var(--shadow-sm);
}

.tanz-form-head {
  margin-bottom: 22px;
}

.tanz-form-head h2 {
  margin-bottom: 6px;
  color: var(--text);
  font-size: 1.35rem;
  letter-spacing: 0;
}

.tanz-form-head p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.tanz-form-field {
  margin-bottom: 18px;
}

.tanz-form-field > label {
  display: block;
  margin-bottom: 7px;
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 700;
}

.tanz-form-field em {
  margin-right: 3px;
  color: #dc2626;
  font-style: normal;
}

.tanz-form-field input[type="text"],
.tanz-form-field input[type="email"],
.tanz-form-field input[type="tel"],
.tanz-form-field input[type="number"],
.tanz-form-field textarea,
.tanz-form-field select {
  width: 100%;
  min-height: 42px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #ffffff;
  color: var(--text);
  font: inherit;
}

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

.tanz-form-field input:focus,
.tanz-form-field textarea:focus,
.tanz-form-field select:focus {
  outline: 2px solid rgba(37, 99, 235, 0.18);
  border-color: var(--accent);
}

.tanz-form-field p {
  margin-top: 6px;
  color: var(--text-tertiary);
  font-size: 0.78rem;
}

.tanz-form-choice {
  display: grid;
  gap: 8px;
}

.tanz-form-choice label {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 0.88rem;
}

.tanz-form-choice input {
  margin-top: 4px;
}

.tanz-form-message,
.tanz-form-error {
  margin-bottom: 14px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
}

.tanz-form-message.is-success {
  border: 1px solid #bbf7d0;
  background: var(--green-soft);
  color: #15803d;
}

.tanz-form-message.is-error,
.tanz-form-error {
  border: 1px solid #fecaca;
  background: #fef2f2;
  color: #b91c1c;
}

.tanz-form-submit {
  width: 100%;
  min-height: 42px;
  border: 0;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: #ffffff;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  transition: var(--transition);
}

.tanz-form-submit:hover {
  background: var(--accent-hover);
}

.article-grid .empty-box,
.section-card-grid .empty-box,
.service-grid .empty-box {
  grid-column: 1 / -1;
}

.pagination-wrap {
  margin-top: 24px;
  color: var(--text-secondary);
  text-align: center;
}

.not-found {
  min-height: calc(100vh - var(--nav-height) - 112px);
  display: flex;
  align-items: center;
  padding: 84px 0;
  text-align: center;
}

.footer {
  position: relative;
  z-index: 1;
  padding: 28px 24px;
  border-top: 1px solid var(--border-light);
  background: #ffffff;
  color: var(--text-tertiary);
  font-size: 0.78rem;
  line-height: 2;
  text-align: center;
}

.footer a {
  color: var(--text-secondary);
  transition: var(--transition);
}

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

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-bottom: 2px;
}

.footer-sep {
  color: #cccccc;
}

.toast {
  position: fixed;
  top: 18px;
  left: 50%;
  z-index: 9999;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  background: #1a1a1a;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.18);
  color: #ffffff;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0;
  pointer-events: none;
  transform: translateX(-50%) translateY(-120px);
  transition: transform 0.35s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.toast.show {
  transform: translateX(-50%) translateY(0);
}

.toast.success {
  background: #16a34a;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.3, 0, 0.2, 1);
}

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

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.5);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(22, 163, 74, 0);
  }
}

@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    text-align: center;
  }

  .hero-text {
    align-items: center;
  }

  .hero-desc {
    max-width: 100%;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-visual {
    order: -1;
  }

  .preview-card {
    max-width: 380px;
  }

  .hero-title {
    font-size: 2.2rem;
  }

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

  .bento-card.featured {
    grid-column: span 2;
  }

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

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

  .content-layout,
  .article-layout {
    grid-template-columns: 1fr;
  }

  .section-title {
    font-size: 1.7rem;
  }
}

@media (max-width: 768px) {
  .nav-actions {
    margin-left: auto;
  }

  .nav-search-link {
    display: none;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 8px 16px 16px;
    border-bottom: 1px solid var(--border);
    background: #ffffff;
    box-shadow: var(--shadow-md);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: all 0.25s cubic-bezier(0.3, 0, 0.2, 1);
  }

  .nav-links.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-links a {
    padding: 10px 14px;
    border-radius: var(--radius-xs);
    font-size: 0.9rem;
  }

  .hamburger {
    display: flex;
  }

  .tanz-member-dropdown {
    right: -40px;
  }

  .hero-wrapper {
    padding-top: 48px;
    padding-bottom: 40px;
  }

  .hero-title {
    font-size: 1.8rem;
  }

  .page-hero {
    padding: 52px 0 42px;
  }

  .page-hero h1,
  .not-found h1 {
    font-size: 1.85rem;
  }

  .bento-grid,
  .service-grid,
  .section-card-grid,
  .article-grid,
  .license-grid {
    grid-template-columns: 1fr;
  }

  .bento-card.featured {
    grid-column: span 1;
  }

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

  .stats-row {
    gap: 8px;
    transform: none;
    padding-top: 20px;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .download-card,
  .article-detail {
    padding: 24px 16px;
  }

  .preview-body {
    min-height: 180px;
    padding: 10px;
  }

  .preview-sidebar {
    width: 56px;
    gap: 3px;
    padding: 6px;
  }

  .preview-main {
    gap: 4px;
    padding: 8px;
  }

  .preview-row span {
    height: 14px;
  }

  .section-spacing {
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .section-header {
    margin-bottom: 28px;
  }

  .list-item,
  .compact-list .list-item {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .hero-search {
    flex-direction: column;
  }

  .hero-search button {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .section,
  .hero-inner,
  .nav-inner,
  .stats-row,
  .bento-grid,
  .tech-grid {
    padding-inline: 12px;
  }

  .hero-title {
    font-size: 1.55rem;
  }

  .btn {
    min-height: 38px;
    padding: 9px 15px;
    border-radius: var(--radius-xs);
    font-size: 0.8rem;
  }

  .stat-value {
    font-size: 1.4rem;
  }

  .bento-card,
  .section-card,
  .article-card,
  .list-item,
  .side-block {
    padding: 18px 14px;
  }

  .code-box {
    padding: 10px 12px;
    font-size: 0.65rem;
  }

  .section-spacing {
    padding-top: 36px;
    padding-bottom: 36px;
  }

  .section-title {
    font-size: 1.25rem;
  }

  .nav-logo {
    min-width: 0;
  }

  .logo-image {
    width: 138px;
    max-height: 34px;
  }

  .tanz-member-trigger {
    gap: 0;
    padding-right: 3px;
  }

  .tanz-member-name,
  .tanz-member-caret {
    display: none;
  }

  .tanz-member-dropdown {
    right: -48px;
  }
}