:root {
    --primary: #1a365d;
    --primary-light: #2c5282;
    --accent: #d4af37; /* Metallic Gold */
    --accent-hover: #b8860b;
    --bg-light: #f7fafc;
    --text-dark: #2d3748;
    --text-muted: #718096;
    --white: #ffffff;
    --glass: rgba(255, 255, 255, 0.85);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Noto Sans JP', 'Montserrat', sans-serif;
    line-height: 1.8;
    color: var(--text-dark);
    background-color: var(--bg-light);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3 {
    font-weight: 700;
    color: var(--primary);
    line-height: 1.3;
}

h1 {
    font-size: clamp(1.8rem, 5vw, 2.8rem);
    margin-bottom: 1.5rem;
}

h2 {
    font-size: clamp(1.5rem, 4vw, 2.2rem);
    margin-top: 4rem;
    margin-bottom: 2rem;
    position: relative;
    padding-left: 1.5rem;
    border-left: 6px solid var(--primary);
}

h3 {
    font-size: 1.4rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-light);
}

p {
    margin-bottom: 1.5rem;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Sections */
section {
    padding: 4rem 0;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(26, 54, 93, 0.9) 0%, rgba(44, 82, 130, 0.8) 100%),
                url('images/pGZWV6OW.jpg') no-repeat center center / cover;
    color: var(--white);
    text-align: center;
    padding: 6rem 1rem;
}

.hero-content {
    max-width: 800px;
    z-index: 2;
}

.hero h1 {
    color: var(--white);
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
}

/* Boxes & Layouts */
.outline-box {
    background: var(--white);
    border: 2px solid var(--primary);
    border-radius: 12px;
    padding: 2rem;
    margin: 2.5rem 0;
    box-shadow: var(--shadow-md);
}

.outline-box ul {
    list-style: none;
}

.outline-box li {
    padding-left: 2rem;
    position: relative;
    margin-bottom: 1rem;
    font-weight: 500;
}

.outline-box li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
    font-size: 1.2rem;
}

.balloon {
    background: #edf2f7;
    padding: 2rem;
    border-radius: 20px;
    position: relative;
    margin: 2rem 0;
    border-bottom: 4px solid #cbd5e0;
}

.balloon::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 40px;
    border-width: 15px 15px 0;
    border-style: solid;
    border-color: #cbd5e0 transparent;
}

.note {
    background: rgba(212, 175, 55, 0.1);
    border-left: 4px solid var(--accent);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 0 8px 8px 0;
    font-size: 0.95rem;
}

.mk {
    background: linear-gradient(transparent 60%, rgba(212, 175, 55, 0.4) 60%);
    font-weight: 700;
}

/* Table */
.spec-table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.spec-table th, .spec-table td {
    padding: 1.2rem;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}

.spec-table th {
    background: var(--primary);
    color: var(--white);
    font-weight: 600;
}

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

/* Images */
.section-image {
    width: 100%;
    height: auto;
    border-radius: 12px;
    margin: 1.5rem 0 2.5rem;
    box-shadow: var(--shadow-lg);
    object-fit: cover;
    max-height: 400px;
}

/* CTA */
.cta-area {
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)),
                url('images/jMXuwxWq.jpg') no-repeat center center / cover;
    padding: 4rem 2rem;
    text-align: center;
    border-radius: 16px;
    margin: 4rem 0;
    color: var(--white);
}

.cta-area p {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    padding: 1.2rem 3rem;
    background-color: var(--accent);
    color: var(--white);
    text-decoration: none;
    font-size: 1.4rem;
    font-weight: 700;
    border-radius: 50px;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.4);
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(212, 175, 55, 0.6);
    background-color: var(--accent-hover);
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.appear {
    opacity: 1;
    transform: translateY(0);
}

footer {
    background: var(--primary);
    color: var(--white);
    padding: 3rem 0;
    text-align: center;
    margin-top: 4rem;
}

@media (max-width: 768px) {
    h2 {
        font-size: 1.5rem;
    }
    .cta-button {
        font-size: 1.1rem;
        padding: 1rem 2rem;
    }
}