:root {
    --color-primary: #1a4a5e;
    --color-primary-dark: #0d2f3d;
    --color-secondary: #2d7a9c;
    --color-accent: #e8a54b;
    --color-accent-light: #f5c87a;
    --color-light: #f8f9fa;
    --color-dark: #1a1a2e;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-white: #ffffff;
    --color-ocean: linear-gradient(135deg, #1a4a5e 0%, #2d7a9c 50%, #3d9bc4 100%);
    --color-sunset: linear-gradient(135deg, #e8a54b 0%, #d4763b 100%);
    --font-heading: 'Noto Serif JP', serif;
    --font-body: 'Noto Sans JP', sans-serif;
    --font-accent: 'Sawarabi Mincho', serif;
    --font-modern: 'M PLUS 1p', sans-serif;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.16);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s ease;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: var(--font-body);
    color: var(--color-text);
    line-height: 1.8;
    background-color: var(--color-light);
    overflow-x: hidden;
}
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-ocean);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}
.page-loader.loaded {
    opacity: 0;
    visibility: hidden;
}
.loader-content {
    text-align: center;
}
.loader-wave {
    display: flex;
    gap: 6px;
    justify-content: center;
    margin-bottom: 20px;
}
.loader-wave span {
    width: 8px;
    height: 40px;
    background: var(--color-accent);
    border-radius: 4px;
    animation: wave 1s ease-in-out infinite;
}
.loader-wave span:nth-child(2) { animation-delay: 0.1s; }
.loader-wave span:nth-child(3) { animation-delay: 0.2s; }
.loader-wave span:nth-child(4) { animation-delay: 0.3s; }
.loader-wave span:nth-child(5) { animation-delay: 0.4s; }
@keyframes wave {
    0%, 100% { transform: scaleY(0.5); }
    50% { transform: scaleY(1); }
}
.loader-text {
    color: var(--color-white);
    font-family: var(--font-heading);
    font-size: 1.1rem;
}
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(26, 74, 94, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
}
.site-header .navbar {
    padding: 12px 0;
}
.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}
.brand-icon {
    width: 40px;
    height: 40px;
    filter: brightness(0) invert(1);
}
.brand-text {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-white);
}
.brand-accent {
    color: var(--color-accent);
}
.navbar-nav {
    gap: 8px;
}
.nav-link {
    font-family: var(--font-modern);
    font-weight: 500;
    color: var(--color-white) !important;
    padding: 8px 16px !important;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    position: relative;
}
.nav-link:hover,
.nav-link.active {
    background: rgba(255,255,255,0.15);
    color: var(--color-accent) !important;
}
.navbar-toggler {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    border: none;
    background: transparent;
    cursor: pointer;
}
.toggler-line {
    width: 28px;
    height: 3px;
    background: var(--color-white);
    border-radius: 2px;
    transition: var(--transition);
}
.dropdown-menu {
    background: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 12px 0;
    margin-top: 8px;
}
.dropdown-item {
    font-family: var(--font-body);
    padding: 10px 20px;
    color: var(--color-text);
    transition: var(--transition);
}
.dropdown-item:hover {
    background: var(--color-light);
    color: var(--color-primary);
}
.mobile-menu {
    position: fixed;
    top: 0;
    right: -320px;
    width: 300px;
    height: 100vh;
    background: var(--color-white);
    z-index: 2000;
    transition: right 0.3s ease;
    box-shadow: var(--shadow-lg);
    overflow-y: auto;
}
.mobile-menu.active {
    right: 0;
}
.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: var(--color-ocean);
    color: var(--color-white);
}
.mobile-menu-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 600;
}
.mobile-menu-close {
    background: transparent;
    border: none;
    color: var(--color-white);
    font-size: 1.5rem;
    cursor: pointer;
}
.mobile-nav {
    list-style: none;
    padding: 20px;
}
.mobile-nav > li {
    margin-bottom: 8px;
}
.mobile-nav > li > a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    color: var(--color-text);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    font-weight: 500;
}
.mobile-nav > li > a:hover {
    background: var(--color-light);
    color: var(--color-primary);
}
.mobile-nav-section {
    margin-top: 16px;
}
.mobile-nav-heading {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    font-weight: 600;
    color: var(--color-primary);
}
.mobile-nav-sub {
    list-style: none;
    padding-left: 44px;
}
.mobile-nav-sub li a {
    display: block;
    padding: 10px 16px;
    color: var(--color-text-light);
    text-decoration: none;
    border-left: 2px solid var(--color-light);
    transition: var(--transition);
}
.mobile-nav-sub li a:hover {
    border-left-color: var(--color-accent);
    color: var(--color-primary);
}
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1500;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}
.menu-overlay.active {
    opacity: 1;
    visibility: visible;
}
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-ocean);
    overflow: hidden;
    padding-top: 80px;
}
.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}
.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.3;
}
.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(26,74,94,0.8) 0%, rgba(26,74,94,0.6) 100%);
    z-index: 2;
}
.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: var(--color-white);
    padding: 40px 20px;
    max-width: 900px;
}
.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.3;
}
.hero-subtitle {
    font-family: var(--font-accent);
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    opacity: 0.9;
    margin-bottom: 30px;
    line-height: 1.8;
}
.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    z-index: 4;
}
.hero-wave svg {
    display: block;
    width: 100%;
    height: auto;
}
main {
    padding-top: 0;
}
.section {
    padding: 80px 0;
}
.section-alt {
    background: var(--color-white);
}
.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    color: var(--color-primary);
    text-align: center;
    margin-bottom: 16px;
    position: relative;
}
.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--color-accent);
    margin: 16px auto 0;
    border-radius: 2px;
}
.section-subtitle {
    text-align: center;
    color: var(--color-text-light);
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto 50px;
}
.feature-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    height: 100%;
}
.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}
.feature-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}
.feature-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.feature-card:hover .feature-image img {
    transform: scale(1.1);
}
.feature-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--color-accent);
    color: var(--color-white);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}
.feature-content {
    padding: 24px;
}
.feature-content h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    color: var(--color-primary);
    margin-bottom: 12px;
}
.feature-content p {
    color: var(--color-text-light);
    font-size: 0.95rem;
    margin-bottom: 16px;
    line-height: 1.7;
}
.feature-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-secondary);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
}
.feature-link:hover {
    color: var(--color-accent);
    gap: 12px;
}
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}
.info-card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 2px solid transparent;
}
.info-card:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md);
}
.info-icon {
    width: 70px;
    height: 70px;
    background: var(--color-ocean);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}
.info-icon i {
    font-size: 1.8rem;
    color: var(--color-white);
}
.info-card h4 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--color-primary);
    margin-bottom: 12px;
}
.info-card p {
    color: var(--color-text-light);
    font-size: 0.95rem;
    line-height: 1.7;
}
.contact-hero {
    background: var(--color-ocean);
    padding: 140px 0 100px;
    text-align: center;
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}
.contact-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Okinawa_Kerama_Islands.jpg/1280px-Okinawa_Kerama_Islands.jpg') center/cover;
    opacity: 0.1;
}
.contact-hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 16px;
    position: relative;
}
.contact-hero p {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}
.contact-section {
    padding: 80px 0;
    background: var(--color-light);
}
.contact-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
    color: var(--color-text-light);
    font-size: 1.05rem;
    line-height: 1.8;
}
.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}
.contact-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 40px 30px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}
.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}
.contact-card-icon {
    width: 70px;
    height: 70px;
    background: var(--color-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}
.contact-card-icon i {
    font-size: 1.8rem;
    color: var(--color-white);
}
.contact-card h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--color-primary);
    margin-bottom: 12px;
}
.contact-card p {
    color: var(--color-text-light);
    font-size: 0.95rem;
    margin-bottom: 16px;
    line-height: 1.6;
}
.contact-card a {
    color: var(--color-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}
.contact-card a:hover {
    color: var(--color-accent);
}
.faq-section {
    background: var(--color-white);
    padding: 80px 0;
}
.faq-title {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 4vw, 2.2rem);
    color: var(--color-primary);
    text-align: center;
    margin-bottom: 50px;
}
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    background: var(--color-light);
    border-radius: var(--radius-md);
    padding: 24px 30px;
    margin-bottom: 16px;
}
.faq-item h4 {
    font-family: var(--font-modern);
    font-size: 1.1rem;
    color: var(--color-primary);
    margin-bottom: 12px;
    font-weight: 600;
}
.faq-item p {
    color: var(--color-text-light);
    font-size: 0.95rem;
    line-height: 1.7;
}
.article-hero {
    background: var(--color-ocean);
    padding: 140px 0 80px;
    position: relative;
    overflow: hidden;
}
.article-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}
.article-hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.25;
}
.article-hero-content {
    position: relative;
    z-index: 2;
    color: var(--color-white);
}
.article-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.article-category {
    background: var(--color-accent);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}
.article-date {
    opacity: 0.8;
    font-size: 0.9rem;
}
.article-hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 2.8rem);
    margin-bottom: 16px;
    line-height: 1.4;
}
.article-hero p {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 700px;
    line-height: 1.7;
}
.article-content {
    padding: 60px 0;
}
.article-body {
    max-width: 800px;
    margin: 0 auto;
}
.article-body h2 {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    color: var(--color-primary);
    margin: 40px 0 20px;
    padding-left: 16px;
    border-left: 4px solid var(--color-accent);
}
.article-body h3 {
    font-family: var(--font-modern);
    font-size: 1.3rem;
    color: var(--color-primary-dark);
    margin: 30px 0 16px;
}
.article-body p {
    margin-bottom: 20px;
    line-height: 1.9;
    color: var(--color-text);
}
.article-body ul,
.article-body ol {
    margin-bottom: 20px;
    padding-left: 24px;
}
.article-body li {
    margin-bottom: 10px;
    line-height: 1.7;
}
.article-image {
    margin: 40px 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}
.article-image img {
    width: 100%;
    height: auto;
    display: block;
}
.article-image figcaption {
    background: var(--color-light);
    padding: 12px 16px;
    font-size: 0.9rem;
    color: var(--color-text-light);
    text-align: center;
}
.tip-box {
    background: linear-gradient(135deg, #e8f4f8 0%, #d0e8f0 100%);
    border-radius: var(--radius-md);
    padding: 24px;
    margin: 30px 0;
    border-left: 4px solid var(--color-secondary);
}
.tip-box h4 {
    font-family: var(--font-modern);
    color: var(--color-primary);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.tip-box p {
    margin-bottom: 0;
    color: var(--color-text);
}
.related-articles {
    background: var(--color-light);
    padding: 60px 0;
}
.related-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-primary);
    text-align: center;
    margin-bottom: 40px;
}
.policy-content {
    padding: 60px 0;
}
.policy-body {
    max-width: 800px;
    margin: 0 auto;
    background: var(--color-white);
    padding: 50px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}
.policy-body h2 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    color: var(--color-primary);
    margin: 36px 0 16px;
}
.policy-body p {
    margin-bottom: 16px;
    line-height: 1.8;
}
.policy-body ul {
    margin-bottom: 20px;
    padding-left: 24px;
}
.policy-body li {
    margin-bottom: 8px;
    line-height: 1.7;
}
.site-footer {
    background: var(--color-primary-dark);
    color: var(--color-white);
    position: relative;
}
.footer-wave {
    color: var(--color-light);
    line-height: 0;
}
.footer-wave svg {
    display: block;
    width: 100%;
    height: 60px;
}
.footer-main {
    padding: 60px 0 40px;
}
.footer-col {
    margin-bottom: 30px;
}
.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}
.footer-logo {
    width: 40px;
    height: 40px;
    filter: brightness(0) invert(1);
}
.footer-brand h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
}
.footer-desc {
    color: rgba(255,255,255,0.7);
    font-size: 0.95rem;
    line-height: 1.7;
}
.footer-heading {
    font-family: var(--font-modern);
    font-size: 1.1rem;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-accent);
    display: inline-block;
}
.footer-links {
    list-style: none;
}
.footer-links li {
    margin-bottom: 10px;
}
.footer-links a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.footer-links a:hover {
    color: var(--color-accent);
}
.footer-links.external a::after {
    content: '\F1C5';
    font-family: 'bootstrap-icons';
    font-size: 0.75rem;
}
.footer-bottom {
    background: rgba(0,0,0,0.2);
    padding: 20px 0;
}
.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}
.copyright {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
    margin: 0;
}
.footer-update {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
    margin: 0;
}
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-white);
    box-shadow: 0 -4px 20px rgba(0,0,0,0.15);
    z-index: 9000;
    transform: translateY(100%);
    transition: transform 0.4s ease;
}
.cookie-banner.show {
    transform: translateY(0);
}
.cookie-content {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 24px;
    max-width: 1200px;
    margin: 0 auto;
    flex-wrap: wrap;
}
.cookie-icon {
    width: 50px;
    height: 50px;
    background: var(--color-ocean);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.cookie-icon i {
    font-size: 1.5rem;
    color: var(--color-white);
}
.cookie-text {
    flex: 1;
    min-width: 250px;
}
.cookie-text h4 {
    font-family: var(--font-modern);
    font-size: 1.1rem;
    color: var(--color-primary);
    margin-bottom: 6px;
}
.cookie-text p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin: 0;
    line-height: 1.6;
}
.cookie-text a {
    color: var(--color-secondary);
}
.cookie-actions {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
}
.cookie-btn {
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: var(--font-modern);
}
.cookie-btn.accept {
    background: var(--color-accent);
    color: var(--color-white);
}
.cookie-btn.accept:hover {
    background: var(--color-primary);
}
.cookie-btn.reject {
    background: var(--color-light);
    color: var(--color-text);
    border: 1px solid #ddd;
}
.cookie-btn.reject:hover {
    background: #e0e0e0;
}
@media (max-width: 991px) {
    .navbar-toggler {
        display: flex;
    }
    .navbar-collapse {
        display: none !important;
    }
    .hero-title {
        font-size: 2rem;
    }
    .section {
        padding: 60px 0;
    }
}
@media (max-width: 767px) {
    .hero-section {
        min-height: 80vh;
    }
    .hero-content {
        padding: 30px 16px;
    }
    .section {
        padding: 50px 0;
    }
    .contact-cards {
        grid-template-columns: 1fr;
    }
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
    .cookie-actions {
        width: 100%;
        justify-content: center;
    }
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }
    .article-body,
    .policy-body {
        padding: 30px 20px;
    }
}
@media (max-width: 480px) {
    .brand-text {
        font-size: 1.1rem;
    }
    .brand-icon {
        width: 32px;
        height: 32px;
    }
    .cookie-btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}