/* リセットCSS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 基本設定 */
body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    color: #2c3e50;
    background-color: #f8fafc;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ヘッダー */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo h1 {
    color: white;
    font-size: 1.8rem;
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.nav-menu a:hover {
    background-color: rgba(255,255,255,0.2);
    transform: translateY(-2px);
}

/* メインコンテンツ */
.main-content {
    min-height: 100vh;
}

/* ヒーローセクション */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 6rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-content h2 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    text-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
}

.btn-primary {
    background: linear-gradient(45deg, #ff6b6b, #ee5a24);
    color: white;
    box-shadow: 0 4px 15px rgba(255,107,107,0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255,107,107,0.6);
}

.btn-secondary {
    background: rgba(255,255,255,0.2);
    color: white;
    border: 2px solid rgba(255,255,255,0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.3);
    transform: translateY(-3px);
}

/* セクション共通 */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: #2c3e50;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    border-radius: 2px;
}

/* 特徴セクション */
.features-section {
    padding: 5rem 0;
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: white;
    padding: 2.5rem 2rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.feature-card h4 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.feature-card p {
    color: #6c757d;
    line-height: 1.6;
}

/* 市場概況 */
.market-overview {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

.market-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.market-card {
    background: rgba(255,255,255,0.1);
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    transition: all 0.3s ease;
}

.market-card:hover {
    transform: translateY(-5px);
    background: rgba(255,255,255,0.15);
}

.market-card h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.price {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.change {
    font-size: 1.1rem;
    font-weight: 500;
}

.change.positive {
    color: #00d4aa;
}

.change.negative {
    color: #ff6b6b;
}

/* ニュースセクション */
.latest-news {
    padding: 5rem 0;
    background: white;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.news-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.news-date {
    color: #6c757d;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.news-card h4 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #2c3e50;
    line-height: 1.4;
}

.news-card p {
    color: #6c757d;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.read-more {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.read-more:hover {
    color: #764ba2;
}

/* フッター */
.footer {
    background: #2c3e50;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #ecf0f1;
}

.footer-section p {
    color: #bdc3c7;
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #ecf0f1;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #34495e;
    color: #bdc3c7;
}

/* ページヘッダー */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.page-header p {
    font-size: 1.3rem;
    opacity: 0.9;
}

/* 市場情報ページ */
.market-summary {
    padding: 5rem 0;
    background: white;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.summary-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border: 1px solid #e9ecef;
    text-align: center;
    transition: all 0.3s ease;
}

.summary-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.summary-card.primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.summary-card h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.current-price {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.price-change {
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.market-time {
    font-size: 0.9rem;
    opacity: 0.7;
}

/* 業種別パフォーマンス */
.sector-performance {
    padding: 5rem 0;
    background: #f8fafc;
}

.sector-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.sector-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border: 1px solid #e9ecef;
    text-align: center;
    transition: all 0.3s ease;
}

.sector-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.sector-card.positive {
    border-left: 4px solid #00d4aa;
}

.sector-card.negative {
    border-left: 4px solid #ff6b6b;
}

.sector-card h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.sector-change {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.sector-card.positive .sector-change {
    color: #00d4aa;
}

.sector-card.negative .sector-change {
    color: #ff6b6b;
}

.sector-detail {
    color: #6c757d;
    font-size: 0.9rem;
}

/* 注目銘柄 */
.top-stocks {
    padding: 5rem 0;
    background: white;
}

.stocks-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.tab-btn {
    padding: 1rem 2rem;
    border: none;
    background: #f8fafc;
    color: #6c757d;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.tab-btn.active,
.tab-btn:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.stock-list {
    display: grid;
    gap: 1.5rem;
}

.stock-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

.stock-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.stock-info h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.stock-code {
    color: #6c757d;
    font-size: 0.9rem;
}

.stock-price {
    font-size: 1.3rem;
    font-weight: 600;
    color: #2c3e50;
}

/* 市場分析 */
.market-analysis {
    padding: 5rem 0;
    background: #f8fafc;
}

.analysis-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.analysis-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border: 1px solid #e9ecef;
}

.analysis-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.analysis-card p {
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.analysis-indicators {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.indicator {
    background: #f8fafc;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    color: #2c3e50;
    border: 1px solid #e9ecef;
}

/* 銘柄分析ページ */
.stock-search {
    padding: 3rem 0;
    background: white;
}

.search-box {
    display: flex;
    max-width: 600px;
    margin: 0 auto;
    gap: 1rem;
}

.search-input {
    flex: 1;
    padding: 1rem 1.5rem;
    border: 2px solid #e9ecef;
    border-radius: 25px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s ease;
}

.search-input:focus {
    border-color: #667eea;
}

.search-btn {
    padding: 1rem 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.search-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102,126,234,0.4);
}

.stock-analysis-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stock-analysis-card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border: 1px solid #e9ecef;
    overflow: hidden;
    transition: all 0.3s ease;
}

.stock-analysis-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.stock-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.stock-header h3 {
    font-size: 1.3rem;
    font-weight: 600;
}

.stock-price {
    font-size: 1.5rem;
    font-weight: 700;
}

.stock-chart {
    padding: 2rem;
    background: #f8fafc;
    text-align: center;
}

.chart-placeholder {
    background: #e9ecef;
    padding: 3rem;
    border-radius: 10px;
    color: #6c757d;
    font-weight: 500;
}

.stock-metrics {
    padding: 1.5rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    background: white;
}

.metric {
    text-align: center;
}

.metric-label {
    display: block;
    font-size: 0.9rem;
    color: #6c757d;
    margin-bottom: 0.5rem;
}

.metric-value {
    display: block;
    font-size: 1.2rem;
    font-weight: 600;
    color: #2c3e50;
}

.analysis-summary {
    padding: 1.5rem;
    background: #f8fafc;
}

.analysis-summary h4 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.analysis-summary p {
    color: #6c757d;
    line-height: 1.6;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.tool-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.tool-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.tool-card p {
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.tool-card ul {
    list-style: none;
    padding: 0;
}

.tool-card li {
    padding: 0.5rem 0;
    color: #6c757d;
    border-bottom: 1px solid #f1f3f4;
}

.tool-card li:last-child {
    border-bottom: none;
}

.investment-advice {
    padding: 5rem 0;
    background: #f8fafc;
}

.advice-warning {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
}

.advice-warning h3 {
    color: #856404;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.advice-warning p {
    color: #856404;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.advice-warning p:last-child {
    margin-bottom: 0;
}

/* 投資戦略ページ */
.investment-basics {
    padding: 5rem 0;
    background: white;
}

.basics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.basic-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

.basic-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.basic-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #2c3e50;
}

.basic-card p {
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 2rem;
}

.key-points h4,
.investment-types h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.key-points ul,
.investment-types ul {
    list-style: none;
    padding: 0;
}

.key-points li,
.investment-types li {
    padding: 0.5rem 0;
    color: #6c757d;
    border-bottom: 1px solid #f1f3f4;
    position: relative;
    padding-left: 1.5rem;
}

.key-points li:before,
.investment-types li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #00d4aa;
    font-weight: bold;
}

.key-points li:last-child,
.investment-types li:last-child {
    border-bottom: none;
}

.investment-strategies {
    padding: 5rem 0;
    background: #f8fafc;
}

.strategies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.strategy-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

.strategy-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.strategy-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.strategy-card p {
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.strategy-features h4,
.strategy-example h4 {
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
    color: #2c3e50;
}

.strategy-features ul {
    list-style: none;
    padding: 0;
    margin-bottom: 1.5rem;
}

.strategy-features li {
    padding: 0.3rem 0;
    color: #6c757d;
    position: relative;
    padding-left: 1.2rem;
}

.strategy-features li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

.strategy-example p {
    background: #f8fafc;
    padding: 1rem;
    border-radius: 10px;
    border-left: 4px solid #667eea;
    margin: 0;
}

.risk-management {
    padding: 5rem 0;
    background: white;
}

.risk-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.risk-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border: 1px solid #e9ecef;
}

.risk-card h3 {
    font-size: 1.4rem;
    margin-bottom: 2rem;
    color: #2c3e50;
}

.risk-types {
    display: grid;
    gap: 1.5rem;
}

.risk-type {
    padding: 1.5rem;
    background: #f8fafc;
    border-radius: 15px;
    border-left: 4px solid #ff6b6b;
}

.risk-type h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.risk-type p {
    color: #6c757d;
    margin: 0;
}

.risk-mitigation h4 {
    font-size: 1.1rem;
    margin: 1.5rem 0 0.8rem 0;
    color: #2c3e50;
}

.risk-mitigation h4:first-child {
    margin-top: 0;
}

.risk-mitigation p {
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.investment-planning {
    padding: 5rem 0;
    background: #f8fafc;
}

.planning-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.step {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border: 1px solid #e9ecef;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
}

.step:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.step-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
}

.step h3 {
    font-size: 1.3rem;
    margin: 1.5rem 0 1rem 0;
    color: #2c3e50;
}

.step p {
    color: #6c757d;
    line-height: 1.6;
}

.investment-education {
    padding: 5rem 0;
    background: white;
}

.education-warning {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    margin-bottom: 3rem;
}

.education-warning h3 {
    color: #856404;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.education-warning p {
    color: #856404;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.education-warning p:last-child {
    margin-bottom: 0;
}

.education-resources h3 {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    color: #2c3e50;
}

.education-resources ul {
    list-style: none;
    padding: 0;
}

.education-resources li {
    padding: 0.8rem 0;
    color: #6c757d;
    border-bottom: 1px solid #f1f3f4;
    position: relative;
    padding-left: 1.5rem;
}

.education-resources li:before {
    content: "📚";
    position: absolute;
    left: 0;
}

.education-resources li:last-child {
    border-bottom: none;
}

/* ニュースページ */
.news-categories {
    padding: 3rem 0;
    background: white;
}

.category-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.category-btn {
    padding: 1rem 2rem;
    border: none;
    background: #f8fafc;
    color: #6c757d;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.category-btn.active,
.category-btn:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.featured-news {
    padding: 5rem 0;
    background: #f8fafc;
}

.featured-news-grid {
    margin-top: 3rem;
}

.featured-news-card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border: 1px solid #e9ecef;
    overflow: hidden;
    display: grid;
    grid-template-columns: 300px 1fr;
    transition: all 0.3s ease;
}

.featured-news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.news-image {
    background: #f8fafc;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-placeholder {
    background: #e9ecef;
    padding: 2rem;
    border-radius: 10px;
    color: #6c757d;
    font-weight: 500;
}

.news-content {
    padding: 2rem;
}

.news-category {
    display: inline-block;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 15px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.news-date {
    color: #6c757d;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.news-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #2c3e50;
    line-height: 1.3;
}

.news-content p {
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.latest-news {
    padding: 5rem 0;
    background: white;
}

.news-list {
    display: grid;
    gap: 2rem;
    margin-top: 3rem;
}

.news-item {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

.news-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.15);
}

.news-item .news-date {
    color: #6c757d;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.news-item .news-category {
    display: inline-block;
    background: #f8fafc;
    color: #667eea;
    padding: 0.3rem 0.8rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 1rem;
    border: 1px solid #e9ecef;
}

.news-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #2c3e50;
    line-height: 1.4;
}

.news-item p {
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.news-archive {
    padding: 5rem 0;
    background: #f8fafc;
}

.archive-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.archive-month {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border: 1px solid #e9ecef;
}

.archive-month h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: #2c3e50;
    border-bottom: 2px solid #667eea;
    padding-bottom: 0.5rem;
}

.archive-month ul {
    list-style: none;
    padding: 0;
}

.archive-month li {
    padding: 0.8rem 0;
    border-bottom: 1px solid #f1f3f4;
}

.archive-month li:last-child {
    border-bottom: none;
}

.archive-month a {
    color: #6c757d;
    text-decoration: none;
    transition: color 0.3s ease;
}

.archive-month a:hover {
    color: #667eea;
}

/* 免責事項ページ */
.disclaimer-content {
    padding: 5rem 0;
    background: white;
}

.disclaimer-section {
    margin-bottom: 4rem;
}

.disclaimer-section:last-child {
    margin-bottom: 0;
}

.disclaimer-section h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: #2c3e50;
    border-bottom: 3px solid #667eea;
    padding-bottom: 1rem;
}

.disclaimer-text h3 {
    font-size: 1.4rem;
    margin: 2rem 0 1rem 0;
    color: #2c3e50;
}

.disclaimer-text h3:first-child {
    margin-top: 0;
}

.disclaimer-text p {
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.disclaimer-text ul {
    margin: 1rem 0;
    padding-left: 2rem;
}

.disclaimer-text li {
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.contact-info,
.important-notice {
    background: #f8fafc;
    padding: 2rem;
    border-radius: 15px;
    margin: 2rem 0;
    border-left: 4px solid #667eea;
}

.contact-info h3,
.important-notice h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

.contact-info p,
.important-notice p {
    color: #6c757d;
    margin-bottom: 0.5rem;
}

.contact-info p:last-child,
.important-notice p:last-child {
    margin-bottom: 0;
}

/* レスポンシブデザイン */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero-content h2 {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
    
    .features-grid,
    .market-cards,
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .page-header h1 {
        font-size: 2.5rem;
    }
    
    .featured-news-card {
        grid-template-columns: 1fr;
    }
    
    .stock-analysis-grid {
        grid-template-columns: 1fr;
    }
    
    .strategies-grid {
        grid-template-columns: 1fr;
    }
    
    .planning-steps {
        grid-template-columns: 1fr;
    }
    
    .archive-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1.1rem;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .feature-card,
    .market-card,
    .news-card {
        padding: 1.5rem;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .page-header p {
        font-size: 1.1rem;
    }
    
    .category-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .category-btn {
        width: 100%;
        max-width: 300px;
    }
    
    .stocks-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .tab-btn {
        width: 100%;
        max-width: 300px;
    }
}