:root {
  --bg: #f3f6fb;
  --card: #ffffff;
  --text: #101828;
  --muted: #4b5565;
  --line: #d7deea;
  --brand: #274bdb;
  --brand-soft: #eaf0ff;
  --ok: #157347;
  --warn: #b45309;
  --danger: #b42318;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, Segoe UI, Arial, sans-serif;
  line-height: 1.6;
}

p,
li,
small {
  overflow-wrap: anywhere;
}

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.wrap {
  width: min(1140px, calc(100vw - 2rem));
  margin: 0 auto;
}

header.site {
  border-bottom: 1px solid var(--line);
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 4;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem 0;
}

.brand {
  font-weight: 800;
  color: var(--text);
}

.nav-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
}

.hero {
  padding: 2rem 0 1rem;
}

h1 {
  margin: 0 0 0.35rem;
  line-height: 1.2;
  font-size: clamp(1.9rem, 2.9vw, 2.7rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

h2 {
  margin: 1.6rem 0 0.6rem;
  font-size: clamp(1.2rem, 1.6vw, 1.45rem);
  line-height: 1.25;
  font-weight: 760;
  letter-spacing: -0.01em;
}

h3 {
  margin: 1.1rem 0 0.45rem;
  font-size: 1.02rem;
  line-height: 1.3;
  font-weight: 700;
}

.muted {
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem;
}

.search {
  display: grid;
  grid-template-columns: 1fr 210px 210px;
  gap: 0.6rem;
  margin-top: 1rem;
}

input,
select,
button {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.68rem;
  font: inherit;
}

input,
select,
button,
a {
  touch-action: manipulation;
}

button {
  background: var(--brand);
  color: #fff;
  border: none;
  cursor: pointer;
  font-weight: 700;
}

button:hover {
  filter: brightness(1.04);
}

.list {
  display: grid;
  gap: 0.8rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.item {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.8rem;
  background: #fff;
}

.badges {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.badge {
  border-radius: 999px;
  background: var(--brand-soft);
  color: #1e3a8a;
  padding: 0.2rem 0.5rem;
  font-size: 0.82rem;
}

.badge.low { background: #e8f6ee; color: var(--ok); }
.badge.medium { background: #fff4e5; color: var(--warn); }
.badge.high { background: #feecee; color: var(--danger); }

.columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
}

.cookie-consent {
  position: fixed;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  z-index: 20;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.8rem 0.9rem;
  box-shadow: 0 8px 28px rgba(16, 24, 40, 0.12);
}

.cookie-consent p {
  margin: 0;
}

.cookie-actions {
  margin-top: 0.7rem;
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.btn-muted {
  background: #eef2ff;
  color: #1e3a8a;
  border: 1px solid #dbe4ff;
}

ol, ul {
  padding-left: 1.2rem;
}

footer {
  margin-top: 1rem;
  border-top: 1px solid var(--line);
  padding: 1.2rem 0 2rem;
  color: var(--muted);
}

footer .links {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.breadcrumb {
  margin: 1rem 0 0.5rem;
  font-size: 0.92rem;
}

.quick-answer {
  background: #f5f8ff;
  border: 1px solid #cfdbff;
  border-left: 4px solid var(--brand);
  border-radius: 12px;
  padding: 0.95rem 1rem;
}

.article-page {
  padding-bottom: 0.5rem;
}

.article-main {
  background: #fff;
  border-radius: 12px;
  padding: 1.35rem 1.45rem 1.6rem;
}

.meta-row {
  margin: 0.25rem 0 0.85rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.verified {
  display: inline-block;
  margin-right: 0.5rem;
  border: 1px solid #c8d4ef;
  background: #f6f9ff;
  color: #243b7a;
  border-radius: 999px;
  padding: 0.15rem 0.55rem;
  font-size: 0.78rem;
  font-weight: 700;
}

.fix-steps {
  margin-top: 1rem;
  border: 1px solid #d2dcf5;
  background: #f8faff;
  border-radius: 12px;
  padding: 0.9rem 1rem;
}

.fix-steps h2 {
  margin-top: 0;
}

.fix-steps ol {
  margin: 0;
  padding-left: 1.25rem;
}

.fix-steps li {
  margin: 0.35rem 0;
}

.section-divider {
  border: 0;
  border-top: 1px solid #e2e8f4;
  margin: 1.2rem 0;
}

.tool-grid {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.tool {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.25rem 0.55rem;
  font-size: 0.86rem;
}

@media (max-width: 980px) {
  .grid {
    grid-template-columns: 1fr;
  }

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

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

  .article-main {
    padding: 1.05rem;
  }

  .nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
  }

  .nav-links {
    width: 100%;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 0.45rem;
    padding-bottom: 0.15rem;
    -webkit-overflow-scrolling: touch;
  }

  .nav-links a {
    white-space: nowrap;
    min-height: 38px;
    padding: 0 0.45rem;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: #fff;
  }

  .cookie-consent {
    left: 0.75rem;
    right: 0.75rem;
    bottom: 0.75rem;
  }
}

@media (max-width: 640px) {
  .wrap {
    width: calc(100vw - 1.5rem);
  }

  .hero {
    padding: 1.2rem 0 0.75rem;
  }

  h1 {
    font-size: clamp(1.45rem, 7.2vw, 1.9rem);
    line-height: 1.2;
  }

  h2 {
    font-size: clamp(1.05rem, 4.8vw, 1.25rem);
    margin-top: 1.1rem;
  }

  .card,
  .article-main {
    border-radius: 10px;
    padding: 0.8rem;
  }

  .item {
    padding: 0.68rem;
  }

  .breadcrumb {
    font-size: 0.86rem;
  }

  .cookie-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .cookie-actions button {
    width: 100%;
    min-height: 42px;
  }
}