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

:root {
    --color-bg: #000000;
    --color-bg-dark: #0d0d0d;
    --color-text: #f0f0f0;
    --color-text-dim: #8a8a8a;
    --color-accent: #9d4edd;
    --color-accent-light: #c77dff;
    --color-accent-dark: #7b2cbf;
    --color-border: #1a1a1a;
}

body {
    font-family: 'Noto Serif JP', serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.8;
    font-size: 16px;
    overflow-x: hidden;
}

/* Header - 上部に横配置 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
}

.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 25px 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 22px;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--color-text);
}

.nav {
    display: flex;
    gap: 45px;
}

.nav a {
    color: var(--color-text-dim);
    text-decoration: none;
    font-size: 14px;
    letter-spacing: 0.1em;
    transition: all 0.3s;
    position: relative;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: width 0.3s;
}

.nav a:hover {
    color: var(--color-accent);
}

.nav a:hover::after {
    width: 100%;
}

.social-links {
    display: flex;
    gap: 20px;
}

.social-icon {
    color: var(--color-text-dim);
    transition: all 0.3s;
    opacity: 0.7;
}

.social-icon:hover {
    color: var(--color-accent);
    opacity: 1;
}

/* Hero - 2カラムグリッドレイアウト */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 100px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 50px;
    align-items: center;
}

.hero-text-area {
    position: relative;
}

.hero-number {
    font-family: 'Cinzel', serif;
    font-size: 80px;
    font-weight: 600;
    color: transparent;
    -webkit-text-stroke: 1px rgba(157, 78, 221, 0.3);
    position: absolute;
    top: -40px;
    left: -20px;
    z-index: 0;
}

.hero-title {
    position: relative;
    z-index: 1;
    margin-bottom: 40px;
}

.title-main {
    display: block;
    font-size: 72px;
    font-weight: 600;
    letter-spacing: 0.1em;
    line-height: 1.2;
    background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
}

.title-sub {
    display: block;
    font-family: 'Cinzel', serif;
    font-size: 16px;
    letter-spacing: 0.25em;
    color: var(--color-text-dim);
    font-weight: 400;
}

.hero-description {
    font-size: 20px;
    color: var(--color-text);
    line-height: 1.8;
    margin-bottom: 40px;
}

.hero-accent-line {
    width: 120px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
}

.hero-visual {
    position: relative;
    height: 500px;
    background: linear-gradient(135deg, rgba(157, 78, 221, 0.1), rgba(123, 44, 191, 0.05));
    border: 1px solid rgba(157, 78, 221, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.visual-overlay {
    position: absolute;
    inset: 0;
    background:
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(157, 78, 221, 0.03) 2px,
            rgba(157, 78, 221, 0.03) 4px
        );
}

.visual-text {
    position: relative;
    z-index: 1;
}

.handwritten {
    font-family: 'Brush Script MT', cursive;
    font-size: 42px;
    color: var(--color-accent-light);
    font-style: italic;
    opacity: 0.8;
}

.scroll-indicator {
    position: absolute;
    bottom: 50px;
    right: 50px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    color: var(--color-text-dim);
    font-size: 11px;
    letter-spacing: 0.2em;
}

.scroll-line {
    width: 1px;
    height: 50px;
    background: linear-gradient(180deg, var(--color-accent), transparent);
    animation: scrollPulse 2s infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: translateY(0); }
    50% { opacity: 1; transform: translateY(10px); }
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 50px;
}

/* Sections */
.section {
    padding: 150px 0;
    position: relative;
}

.section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

.section-dark {
    background: radial-gradient(circle at 30% 50%, rgba(157, 78, 221, 0.03), transparent 50%);
}

.section-title {
    font-size: 56px;
    font-weight: 600;
    margin-bottom: 100px;
    text-align: center;
    letter-spacing: 0.1em;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::before {
    content: attr(data-number);
    position: absolute;
    top: -30px;
    left: -40px;
    font-family: 'Cinzel', serif;
    font-size: 100px;
    color: transparent;
    -webkit-text-stroke: 1px rgba(157, 78, 221, 0.2);
    z-index: -1;
}

.content {
    max-width: 900px;
    margin: 0 auto;
}

.content p {
    margin-bottom: 35px;
    color: var(--color-text);
    font-size: 17px;
    line-height: 2.2;
}

.quote {
    font-size: 28px;
    font-style: italic;
    text-align: center;
    padding: 80px 60px;
    margin: 80px 0;
    background: linear-gradient(135deg, rgba(157, 78, 221, 0.05), transparent);
    border-top: 2px solid var(--color-accent);
    border-bottom: 2px solid var(--color-accent);
    color: var(--color-accent-light);
    position: relative;
}

em {
    color: var(--color-accent-light);
    font-style: italic;
    font-weight: 400;
}

/* Stats - 横並び配置 */
.stats {
    display: flex;
    justify-content: space-between;
    margin: 100px 0;
    gap: 50px;
}

.stat-item {
    flex: 1;
    text-align: center;
    padding: 60px 40px;
    background: linear-gradient(135deg, rgba(157, 78, 221, 0.05), transparent);
    border: 1px solid rgba(157, 78, 221, 0.2);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(157, 78, 221, 0.1), transparent);
    transition: left 0.6s;
}

.stat-item:hover::before {
    left: 100%;
}

.stat-item:hover {
    border-color: var(--color-accent);
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(157, 78, 221, 0.2);
}

.stat-number {
    font-size: 64px;
    font-weight: 600;
    font-family: 'Cinzel', serif;
    background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
}

.stat-label {
    font-size: 14px;
    color: var(--color-text-dim);
    letter-spacing: 0.15em;
}

.publication {
    text-align: center;
    font-size: 20px;
    color: var(--color-accent-light);
    margin-top: 80px;
    padding: 40px;
    border: 2px solid var(--color-accent);
    background: rgba(157, 78, 221, 0.03);
    letter-spacing: 0.1em;
}

/* CTA */
.cta {
    text-align: center;
    margin-top: 100px;
}

.btn {
    display: inline-block;
    padding: 20px 60px;
    background: transparent;
    color: var(--color-accent-light);
    text-decoration: none;
    border: 2px solid var(--color-accent);
    transition: all 0.4s;
    letter-spacing: 0.25em;
    font-size: 14px;
    position: relative;
    overflow: hidden;
    font-family: 'Cinzel', serif;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: var(--color-accent);
    transition: all 0.5s;
    transform: translate(-50%, -50%);
    border-radius: 50%;
}

.btn:hover::before {
    width: 300%;
    height: 300%;
}

.btn:hover {
    color: var(--color-bg);
    border-color: var(--color-accent-light);
}

.btn span {
    position: relative;
    z-index: 1;
}

/* Footer */
.footer {
    padding: 80px 0;
    text-align: center;
    color: var(--color-text-dim);
    font-size: 12px;
    border-top: 1px solid var(--color-border);
    letter-spacing: 0.15em;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .hero-visual {
        height: 400px;
    }

    .title-main {
        font-size: 56px;
    }

    .stats {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .header-inner {
        padding: 20px 30px;
        flex-wrap: wrap;
    }

    .nav {
        order: 3;
        width: 100%;
        margin-top: 20px;
        gap: 20px;
        justify-content: center;
    }

    .hero-grid {
        padding: 0 30px;
    }

    .title-main {
        font-size: 40px;
    }

    .hero-number {
        font-size: 50px;
    }

    .section-title {
        font-size: 36px;
    }

    .container {
        padding: 0 30px;
    }

    .quote {
        font-size: 20px;
        padding: 40px 30px;
    }

    .scroll-indicator {
        display: none;
    }
}