:root {
  --primary: #01875f;
  --primary-dark: #00704e;
  --primary-light: #e6f4ea;
  --primary-text: #137333;
  --download: #01875f;
  --download-dark: #00704e;
  --bg: #ffffff;
  --bg-alt: #f1f3f4;
  --card: #ffffff;
  --text: #202124;
  --muted: #5f6368;
  --border: #dadce0;
  --soft: #f8f9fa;
  --yellow: #ffb300;
  --danger: #d93025;
  --shadow-sm: 0 1px 2px 0 rgba(60,64,67,0.3), 0 1px 3px 1px rgba(60,64,67,0.15);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: "Google Sans", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
  transition: background-color 0.15s, border-color 0.15s, color 0.15s;
}

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

.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.topbar {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.5px;
}

.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), #00b0ff);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 16px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
}

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

.header-search {
  max-width: 320px;
  flex: 1;
}

.header-search input,
.searchbox input,
.form-control {
  width: 100%;
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--soft);
  color: var(--text);
  outline: none;
  font-size: 14px;
  transition: background-color 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.header-search input::placeholder,
.searchbox input::placeholder,
.form-control::placeholder {
  color: var(--muted);
}

.header-search input:focus,
.searchbox input:focus,
.form-control:focus {
  border-color: var(--primary);
  background: var(--card);
  box-shadow: 0 1px 2px 0 rgba(60,64,67,0.3);
}

.section {
  margin: 32px 0;
}

.card {
  background: var(--card);
  border: 0;
  border-radius: 0;
  padding: 0;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.section-title {
  margin: 0;
  font-size: 18px;
  font-weight: 500;
  color: var(--text);
  letter-spacing: -0.2px;
}

.page-title {
  margin: 0 0 12px;
  font-size: 24px;
  font-weight: 500;
  color: var(--text);
  letter-spacing: -0.5px;
}

.view-more {
  color: var(--primary);
  font-weight: 500;
  font-size: 14px;
}

.view-more:hover {
  color: var(--primary-dark);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 20px;
  padding: 8px 24px;
  font-weight: 500;
  font-size: 14px;
  border: 0;
  cursor: pointer;
  transition: background-color 0.2s, box-shadow 0.2s;
}

.btn-download {
  background: var(--download);
  color: #fff;
}

.btn-download:hover {
  background: var(--download-dark);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-dark);
}

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

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

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

.stars {
  color: var(--yellow);
  font-size: 11px;
  letter-spacing: 1px;
}

.hero {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 48px 0;
  text-align: center;
}

.hero-inner {
  max-width: 720px;
  margin: 0 auto;
}

.hero h1 {
  margin: 0 0 12px;
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 500;
  color: var(--text);
  letter-spacing: -0.5px;
  line-height: 1.2;
}

.hero p {
  margin: 0 auto 28px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.5;
}

.searchbox {
  display: flex;
  background: var(--soft);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px;
  max-width: 600px;
  margin: 0 auto;
}

.searchbox input {
  border: 0;
  background: transparent;
  padding: 10px 18px;
  font-size: 15px;
}

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

.searchbox button {
  border-radius: 8px;
}

.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);
  font-weight: 500;
}

.chips a {
  padding: 6px 14px;
  border-radius: 16px;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--muted);
}

.chips a:hover {
  background: var(--primary-light);
  border-color: var(--primary-light);
  color: var(--primary-text);
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 40px;
  align-items: start;
  margin-top: 32px;
}

.main-content,
.sidebar {
  display: grid;
  gap: 32px;
}

.main-content {
  min-width: 0;
  width: 100%;
}

.sidebar {
  width: 100%;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}

.category {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px 12px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.category:hover {
  background-color: var(--soft);
}

.cat-icon {
  width: 44px;
  height: 44px;
  margin-bottom: 8px;
  border-radius: 50%;
  background: var(--soft);
  display: grid;
  place-items: center;
  font-size: 20px;
}

.category strong {
  display: block;
  font-size: 13px;
  color: var(--text);
  font-weight: 500;
}

.category span {
  color: var(--muted);
  font-size: 11px;
  margin-top: 2px;
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.app-card {
  display: flex;
  flex-direction: column;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  align-items: stretch;
}

.app-card:hover {
  box-shadow: none;
}

.app-icon,
.rank-icon,
.detail-icon,
.big-icon {
  border-radius: 12px;
  flex-shrink: 0;
  background: var(--soft);
  border: 1px solid rgba(0, 0, 0, 0.08);
  aspect-ratio: 1/1;
}

.app-card .app-icon {
  width: 100%;
  max-width: 150px;
  margin-bottom: 12px;
  border-radius: 20%;
}

.app-body {
  min-width: 0;
  flex: unset;
}

.app-body h3 {
  margin: 0 0 2px 0;
  font-size: 14px;
  font-weight: 400;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.app-meta {
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.app-desc {
  display: none;
}

.app-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--primary-light);
  color: var(--primary-text);
  padding: 6px 16px;
  border-radius: 20px;
  font-weight: 500;
  font-size: 12px;
  text-align: center;
  margin-top: 4px;
}

.app-card:hover .app-action {
  background-color: var(--primary);
  color: #ffffff;
  text-decoration: none;
}

.feature-box {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 32px;
  align-items: center;
  background: var(--soft);
  border-radius: 16px;
  padding: 32px;
  border: 1px solid var(--border);
}

.feature-visual {
  height: 150px;
  border-radius: 12px;
  background: var(--card);
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
}

.big-icon {
  width: 96px;
  height: 96px;
  border: 0;
  border-radius: 20%;
}

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

.breadcrumb {
  padding: 8px 0 20px 0;
  color: var(--muted);
  font-size: 13px;
}

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

.detail-hero {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.detail-icon {
  width: 96px;
  height: 96px;
  border-radius: 20%;
}

.detail-title {
  margin: 0 0 8px 0;
  font-size: 24px;
  font-weight: 400;
  color: var(--text);
  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: 12px 4px;
  font-size: 14px;
}

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

.spec-table td:last-child {
  font-weight: 500;
  color: var(--text);
}

.proscons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

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

.proscons li {
  margin-bottom: 6px;
  font-size: 14px;
  color: var(--muted);
}

.pros h3 {
  color: var(--primary);
  font-size: 16px;
  font-weight: 500;
}

.cons h3 {
  color: var(--danger);
  font-size: 16px;
  font-weight: 500;
}

.screenshots {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.shot {
  min-width: 150px;
  aspect-ratio: 9/16;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--soft);
  overflow: hidden;
}

.mock-line {
  height: 8px;
  background: var(--border);
  border-radius: 4px;
  margin-bottom: 10px;
}

.mock-box {
  height: 50px;
  border-radius: 6px;
  background: var(--primary-light);
  margin: 12px 0;
}

.rank-list {
  display: grid;
  gap: 16px;
}

.rank-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.rank-item:last-child {
  border-bottom: 0;
}

.rank-num {
  width: 24px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  text-align: center;
  flex-shrink: 0;
}

.rank-item:nth-child(1) .rank-num {
  color: #ffb300;
}

.rank-item:nth-child(2) .rank-num {
  color: #757575;
}

.rank-item:nth-child(3) .rank-num {
  color: #a1887f;
}

.rank-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
}

.rank-text {
  min-width: 0;
  flex-grow: 1;
}

.rank-text strong {
  display: block;
  font-size: 14px;
  font-weight: 400;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.rank-text span {
  color: var(--muted);
  font-size: 12px;
}

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

.link-list a {
  font-size: 14px;
  color: var(--muted);
  padding: 8px 12px;
  display: block;
  border-radius: 8px;
  background: var(--soft);
}

.link-list a:hover {
  background-color: var(--primary-light);
  color: var(--primary-text);
}

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

.article {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.article:hover {
  box-shadow: var(--shadow-sm);
}

.article-thumb {
  height: 120px;
  background: var(--soft);
  display: grid;
  place-items: center;
  font-size: 32px;
}

.article-body {
  padding: 16px;
}

.article-body h3 {
  margin: 0 0 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
}

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

.content h2 {
  margin-top: 24px;
  font-size: 18px;
  font-weight: 500;
  color: var(--text);
}

.content p,
.content li {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.notice {
  background: var(--primary-light);
  border: 1px solid rgba(1, 135, 95, 0.15);
  color: var(--primary-text);
  border-radius: 8px;
  padding: 16px;
  font-size: 13px;
}

details {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}

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

summary {
  cursor: pointer;
  font-weight: 500;
  font-size: 14px;
  color: var(--text);
  outline: none;
}

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

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

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

.site-footer {
  margin-top: 64px;
  background: var(--soft);
  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: var(--text);
  font-weight: 500;
  font-size: 20px;
  margin-bottom: 12px;
}

.footer-col h4 {
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  margin: 0 0 16px 0;
}

.footer-col a {
  display: block;
  margin-bottom: 10px;
  color: var(--muted);
}

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

.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(3, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (max-width: 768px) {
  .topbar {
    height: auto;
    padding: 16px 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: 8px;
  }

  .searchbox button {
    width: 100%;
  }

  .app-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
  }

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

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

  .detail-icon {
    width: 80px;
    height: 80px;
  }

  .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);
  }

  .app-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
  }

  .app-card .app-icon {
    max-width: 100px;
  }

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