* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: #2f3437;
  background: #f7f5f0;
  line-height: 1.7;
}

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 22px;
}

.header {
  padding: 38px 0 24px;
  border-bottom: 1px solid #e2ded6;
  background: #fbfaf7;
}

.site-title {
  margin: 0;
  font-size: 34px;
  letter-spacing: -0.5px;
}

.site-title a {
  color: #2f3437;
  text-decoration: none;
}

.subtitle {
  margin: 8px 0 0;
  color: #6f7478;
  font-size: 15px;
}

.nav {
  margin-top: 22px;
}

.nav a {
  margin-right: 18px;
  color: #3d6385;
  text-decoration: none;
  font-size: 15px;
}

.nav a:hover {
  text-decoration: underline;
}

.main {
  padding: 46px 0 60px;
}

.hero {
  padding: 34px;
  background: #ffffff;
  border: 1px solid #e7e2da;
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
}

.hero h2 {
  margin-top: 0;
  font-size: 30px;
}

.hero p {
  color: #555b60;
}

.section-title {
  margin-top: 44px;
  margin-bottom: 18px;
  font-size: 24px;
}

.post-list {
  display: grid;
  gap: 18px;
}

.post-card {
  padding: 24px;
  background: #ffffff;
  border: 1px solid #e7e2da;
  border-radius: 14px;
}

.post-card h3 {
  margin: 0 0 8px;
  font-size: 21px;
}

.post-card p {
  margin: 8px 0;
  color: #555b60;
}

.date {
  font-size: 13px;
  color: #8a8f94;
}

.footer {
  padding: 26px 0;
  border-top: 1px solid #e2ded6;
  color: #85898d;
  font-size: 14px;
  background: #fbfaf7;
}

.page-title {
  font-size: 30px;
  margin-top: 0;
}

.content-box {
  padding: 30px;
  background: #ffffff;
  border: 1px solid #e7e2da;
  border-radius: 14px;
}

.content-box p {
  color: #555b60;
}

.note-item {
  padding: 20px 0;
  border-bottom: 1px solid #eee8df;
}

.note-item:last-child {
  border-bottom: none;
}

.login-wrap {
  max-width: 420px;
  margin: 30px auto;
  padding: 34px;
  background: #ffffff;
  border: 1px solid #e7e2da;
  border-radius: 16px;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.05);
}

.login-wrap h2 {
  margin-top: 0;
  text-align: center;
}

.login-desc {
  text-align: center;
  color: #6f7478;
  font-size: 14px;
  margin-bottom: 26px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  margin-bottom: 7px;
  font-size: 14px;
  color: #4b5054;
}

.form-group input {
  width: 100%;
  padding: 12px 13px;
  border: 1px solid #d8d2c9;
  border-radius: 10px;
  font-size: 15px;
  background: #fbfaf7;
}

.button {
  display: inline-block;
  width: 100%;
  padding: 12px 16px;
  border: none;
  border-radius: 10px;
  background: #3d6385;
  color: #ffffff;
  font-size: 15px;
  cursor: pointer;
}

.button:hover {
  background: #345775;
}

.small-text {
  margin-top: 16px;
  color: #8a8f94;
  font-size: 13px;
  text-align: center;
}

@media (max-width: 600px) {
  .site-title {
    font-size: 28px;
  }

  .hero {
    padding: 24px;
  }

  .nav a {
    display: inline-block;
    margin-bottom: 8px;
  }
}