:root {
    --primary-color: #1a2d4c;    /* ネイビー */
    --accent-color: #b89b5e;     /* ゴールド */
    --text-color: #333333;
    --light-bg: #f8f9fa;
    --white: #ffffff;
    --border-color: #e2e8f0;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
    line-height: 1.8;
    color: var(--text-color);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 30px;
}

/* Header & Logo */
header {
    background: var(--white);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 50px; /* 画像の高さを調整 */
    width: auto;
    display: block;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 25px;
}

nav ul li a {
    text-decoration: none;
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: bold;
}

/* Hero */
.hero {
    background: linear-gradient(rgba(26,45,76,0.05), rgba(26,45,76,0.02));
    padding: 100px 0;
    text-align: center;
}

.sub-tag {
    color: var(--accent-color);
    letter-spacing: 0.2em;
    font-weight: bold;
    font-size: 0.8rem;
    display: block;
    margin-bottom: 15px;
}

.highlight {
    background: linear-gradient(transparent 70%, rgba(184, 155, 94, 0.2) 70%);
}

.btn {
    display: inline-block;
    padding: 15px 35px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: bold;
    margin: 10px;
    transition: 0.3s;
}

.btn.primary { background: var(--primary-color); color: var(--white); }
.btn.secondary { border: 2px solid var(--primary-color); color: var(--primary-color); }

/* Section Common */
.section { padding: 80px 0; }
.bg-light { background-color: var(--light-bg); }
.section-title { text-align: center; margin-bottom: 50px; color: var(--primary-color); font-size: 2rem; }

/* 枠囲みデザイン */
.bordered-section {
    border: 1px solid var(--primary-color);
    padding: 60px 40px;
    background: var(--white);
    border-radius: 2px;
}

.bordered-section.accent {
    border: 1px solid var(--accent-color);
}

/* 法人導入のメリット：3つ横並び */
.benefit-grid {
    display: flex;
    justify-content: space-between;
    gap: 20px;
}

.benefit-card {
    flex: 1;
    text-align: center;
    padding: 10px;
}

.benefit-icon {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    color: var(--accent-color);
    margin-bottom: 15px;
    display: inline-block;
    border-bottom: 1px solid var(--accent-color);
}

.benefit-card h3 {
    font-size: 1.1rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

/* Stats */
.case-stats {
    display: flex;
    justify-content: space-around;
    margin-bottom: 50px;
    text-align: center;
}

.stat-value { font-size: 3rem; font-weight: bold; color: var(--primary-color); display: block; }

.case-card {
    background: var(--light-bg);
    padding: 30px;
    margin-bottom: 20px;
    border-left: 4px solid var(--accent-color);
}

/* Table */
.table-wrapper { overflow-x: auto; margin-top: 30px; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 20px; border: 1px solid var(--border-color); text-align: center; }
th { background: var(--primary-color); color: var(--white); }
.active-head { background: var(--accent-color); }
.active-cell { background: rgba(184, 155, 94, 0.05); font-weight: bold; }

/* Pricing Grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.price-card {
    border: 1px solid var(--border-color);
    padding: 40px;
    text-align: center;
    position: relative;
}

.price-card.popular { border: 2px solid var(--accent-color); }
.price-val { font-size: 1.8rem; font-weight: bold; color: var(--primary-color); margin: 20px 0; }
.badge { background: var(--accent-color); color: var(--white); position: absolute; top: 0; left: 50%; transform: translate(-50%, -50%); padding: 5px 20px; font-size: 0.8rem; }
.price-list { list-style: none; text-align: left; display: inline-block; margin-top: 20px; }
.price-list li::before { content: "✔"; color: var(--accent-color); margin-right: 10px; }

/* FAQ */
.faq-item { margin-bottom: 30px; padding-bottom: 20px; border-bottom: 1px solid var(--border-color); }
.faq-item h4 { color: var(--primary-color); margin-bottom: 10px; }

footer { background: var(--primary-color); color: var(--white); padding: 40px 0; text-align: center; font-size: 0.8rem; }

/* Responsive */
@media (max-width: 768px) {
    .benefit-grid { flex-direction: column; }
    .case-stats { flex-direction: column; gap: 30px; }
    .bordered-section { padding: 40px 20px; }
}