:root {
  --primary-color: #003366;
  --accent-color: #1e88e5;
  --bg-color: #f4f6f8;
  --paper-color: #ffffff;
  --text-dark: #001a33;
  --text-main: #2c3e50;
  --text-muted: #6b7c93;
  --border-color: rgba(0, 51, 102, 0.15);
  --border-radius: 3px;
  --letter-spacing: 0.05rem;
}

/* Modern Reset for Project */
*,
*::before,
*::after {
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
}

body,
h1,
h2,
h3,
h4,
p,
ul,
ol,
figure,
blockquote,
dl,
dd {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  text-rendering: optimizeSpeed;
  line-height: 1.5;
}

ul,
ol {
  list-style: none;
}

a {
  text-decoration: none;
  color: inherit;
  -webkit-text-decoration-skip: ink;
          text-decoration-skip-ink: auto;
}

img,
picture {
  max-width: 100%;
  display: block;
}

input,
button,
textarea,
select {
  font: inherit;
  background: transparent;
  border: none;
  padding: 0;
  margin: 0;
  outline: none;
  -moz-appearance: none;
       appearance: none;
  -webkit-appearance: none;
}

button {
  cursor: pointer;
  background: none;
  border: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

@-webkit-keyframes fadeInUp {
  from {
    opacity: 0;
    -webkit-transform: translateY(20px);
            transform: translateY(20px);
  }
  to {
    opacity: 1;
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    -webkit-transform: translateY(20px);
            transform: translateY(20px);
  }
  to {
    opacity: 1;
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
}
body {
  font-family: "LINE Seed JP", sans-serif;
  background-color: var(--bg-color);
  background-image: linear-gradient(rgba(0, 64, 152, 0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(0, 64, 152, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  background-attachment: fixed;
  color: var(--text-dark);
  margin: 0;
  padding: 20px;
  line-height: 1.8;
  letter-spacing: var(--letter-spacing);
}

.container {
  max-width: 850px;
  margin: 60px auto;
  padding: 80px 100px;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  -webkit-box-shadow: none;
          box-shadow: none;
  -webkit-animation: fadeInUp 0.8s ease-out both;
          animation: fadeInUp 0.8s ease-out both;
  position: relative;
}
.container::before {
  content: "[ LEGAL_NOTICE ]";
  position: absolute;
  top: 25px;
  right: 40px;
  font-size: 0.65rem;
  font-weight: 800;
  color: var(--primary-color);
  opacity: 0.4;
}

h1 {
  font-size: 1.8rem;
  color: var(--primary-color);
  text-align: left;
  margin: 0 0 40px;
  font-weight: 500;
  letter-spacing: 0.1rem;
}

h2 {
  font-size: 1.1rem;
  color: var(--primary-color);
  margin-top: 50px;
  margin-bottom: 20px;
  font-weight: 500;
  border-bottom: 1px dashed var(--border-color);
  padding-bottom: 10px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}

p {
  font-size: 0.95rem;
  margin-bottom: 20px;
  color: var(--text-main);
  text-align: justify;
  line-height: 2;
}

.back-btn {
  display: -webkit-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  margin-top: 60px;
  padding: 15px 40px;
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  text-decoration: none;
  -webkit-transition: all 0.2s ease;
  transition: all 0.2s ease;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.1rem;
  text-transform: uppercase;
}
.back-btn:hover {
  background: var(--text-dark);
  color: #fff;
  border-color: var(--text-dark);
}

@media (max-width: 768px) {
  .container {
    margin: 40px 10px;
    padding: 50px 30px;
  }
  h1 {
    font-size: 1.6rem;
  }
}