:root {
  --bg-1: #f4f8fc;
  --bg-2: #e8f3ff;
  --ink: #0f172a;
  --muted: #475569;
  --card: rgba(255, 255, 255, 0.94);
  --border: rgba(15, 23, 42, 0.12);
  --accent: #0f766e;
  --accent-2: #0ea5e9;
  --radius-lg: 16px;
  --shadow: 0 18px 34px rgba(15, 23, 42, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: linear-gradient(152deg, var(--bg-1) 0%, var(--bg-2) 100%);
  font-family: "Outfit", "Segoe UI", sans-serif;
}

.wrapper {
  max-width: 980px;
  margin: 0 auto;
  padding: 20px;
}

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--card);
  box-shadow: var(--shadow);
  padding: clamp(16px, 3vw, 30px);
}

.kicker {
  margin: 0;
  color: var(--accent);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  font-size: 0.74rem;
  font-weight: 700;
}

h1 {
  margin: 8px 0 10px;
  font-size: clamp(1.6rem, 4vw, 2.5rem);
}

h2 {
  margin: 20px 0 8px;
  font-size: 1.18rem;
}

h3 {
  margin: 16px 0 6px;
  font-size: 1.04rem;
  color: var(--accent);
}

.char-table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0 20px;
  font-size: 0.93rem;
}

.char-table th {
  background: rgba(15, 118, 110, 0.08);
  color: var(--accent);
  font-weight: 700;
  text-align: left;
  padding: 8px 10px;
  border-bottom: 2px solid rgba(15, 118, 110, 0.2);
}

.char-table td {
  padding: 7px 10px;
  border-bottom: 1px solid var(--border);
  color: #334155;
}

.char-table tr:last-child td {
  border-bottom: none;
}

.char-table .char {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.05em;
}

.char-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(64px, 1fr));
  gap: 8px;
  margin: 12px 0 20px;
}

.char-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 4px 6px;
  background: rgba(255,255,255,0.7);
}

.char-cell .ch {
  font-size: 1.5rem;
  line-height: 1;
}

.char-cell .ro {
  font-size: 0.7rem;
  color: var(--muted);
  margin-top: 3px;
}

.cta-box {
  background: linear-gradient(135deg, rgba(15,118,110,0.08) 0%, rgba(14,165,233,0.08) 100%);
  border: 1px solid rgba(15,118,110,0.2);
  border-radius: 12px;
  padding: 18px 20px;
  margin: 24px 0 12px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.cta-box p {
  margin: 0;
  flex: 1 1 200px;
}

.cta-box a {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  border-radius: 8px;
  padding: 10px 20px;
  font-weight: 700;
  font-size: 0.92rem;
  white-space: nowrap;
}

.cta-box a:hover {
  background: #0d6460;
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
  margin: 16px 0;
}

.guide-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  background: rgba(255,255,255,0.8);
  text-decoration: none;
  color: inherit;
  display: block;
  transition: box-shadow 0.15s;
}

.guide-card:hover {
  box-shadow: 0 6px 18px rgba(15,23,42,0.10);
}

.guide-card .gc-kicker {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 4px;
}

.guide-card .gc-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--ink);
}

.guide-card .gc-desc {
  font-size: 0.86rem;
  color: var(--muted);
  margin: 0;
  line-height: 1.5;
}

p,
li {
  color: #334155;
  line-height: 1.6;
}

ul {
  margin: 8px 0;
  padding-left: 20px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.nav a {
  text-decoration: none;
  color: var(--accent);
  border: 1px solid rgba(15, 118, 110, 0.25);
  border-radius: 999px;
  padding: 5px 10px;
  background: rgba(204, 251, 241, 0.4);
  font-size: 0.86rem;
}

.nav a:hover {
  background: rgba(167, 243, 208, 0.62);
}

.meta {
  margin-top: 20px;
  font-size: 0.84rem;
  color: var(--muted);
}

@media (max-width: 640px) {
  .wrapper {
    padding: 12px;
  }
}