:root{--primary-color:#00a0e9;--primary-dark:#0085c3;--secondary-color:#00c8ff;--accent-green:#8cc63f;--accent-yellow:#f9a825;--text-dark:#333;--text-light:#666;--bg-light:#f5f7fa;--white:#fff;--shadow:0 2px 8px rgba(0,0,0,.1);--shadow-hover:0 4px 16px rgba(0,0,0,.15);--transition:all .3s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:'Noto Sans JP',sans-serif;color:var(--text-dark);background:var(--bg-light);line-height:1.6}a{text-decoration:none;color:inherit;transition:var(--transition)}a:hover{opacity:.8}img{max-width:100%;height:auto}.header{position:fixed;top:0;left:0;right:0;z-index:1000;background:var(--white);padding:12px 24px;display:flex;justify-content:space-between;align-items:center;box-shadow:var(--shadow);transition:var(--transition)}.logo{display:flex;align-items:center;gap:8px;font-family:'Roboto',sans-serif;font-weight:700;font-size:1.4rem;color:var(--text-dark)}.logo-icon{font-size:1.8rem;font-weight:700;color:var(--primary-color);font-style:italic}.logo-text{display:flex;flex-direction:column;line-height:1}.logo-name{letter-spacing:.05em}.logo-wave{display:block;height:6px;margin-top:2px}.logo-wave svg{width:140px;height:6px}.hamburger{width:28px;height:18px;display:flex;flex-direction:column;justify-content:space-between;cursor:pointer}.hamburger span{display:block;height:2px;background:var(--primary-color);border-radius:1px;transition:var(--transition)}.hamburger:hover span{background:var(--primary-dark)}.page-header{margin-top:60px;padding:40px 4%;background:var(--white);border-bottom:3px solid var(--primary-color)}.page-title{font-size:2rem;font-weight:700;color:var(--text-dark);display:flex;align-items:center;gap:12px}.page-title-icon svg{width:32px;height:32px;fill:var(--primary-color)}.breadcrumb{margin-top:12px;font-size:.85rem;color:var(--text-light)}.breadcrumb a{color:var(--primary-color)}.breadcrumb a:hover{text-decoration:underline}.main-content{max-width:1200px;margin:40px auto;padding:0 4%}.intro-text,.intro-section{background:var(--white);padding:24px;border-radius:8px;margin-bottom:30px;box-shadow:var(--shadow);line-height:1.8}.intro-title{font-size:1.3rem;font-weight:700;margin-bottom:16px;color:var(--primary-color)}.section-title{font-size:1.5rem;font-weight:700;margin-bottom:24px;padding-left:14px;position:relative}.section-title::before{content:'';position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--primary-color);border-radius:2px}.credit-section,.contact-methods,.faq-section{margin-bottom:50px}.filter-tabs{display:flex;gap:8px;margin-bottom:30px;flex-wrap:wrap}.filter-tab{padding:8px 20px;background:var(--white);border:2px solid #e0e0e0;border-radius:20px;font-size:.9rem;cursor:pointer;transition:var(--transition);font-family:inherit}.filter-tab:hover{border-color:var(--primary-color);color:var(--primary-color)}.filter-tab.active{background:var(--primary-color);border-color:var(--primary-color);color:var(--white)}.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.news-card{background:var(--white);border-radius:8px;overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);cursor:pointer}.news-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}.news-image{width:100%;aspect-ratio: 16/9;position:relative;overflow:hidden;background-size:cover;background-position:center}.news-image.blue{background:linear-gradient(180deg,#e8f4fc 0%,#c5d8e8 100%)}.news-image.green{background:linear-gradient(180deg,#e8f5e9 0%,#c8e6c9 100%)}.news-image.yellow{background:linear-gradient(180deg,#fff9e6 0%,#ffe4b3 100%)}.news-image img{width:100%;height:100%;object-fit:cover}.news-image .mini-train{position:absolute;bottom:15%;left:10%;width:75%;height:35%;border-radius:4px 4px 2px 2px}.news-image .mini-train.blue-train{background:linear-gradient(90deg,#00a0e9,#0077b6)}.news-image .mini-train.green-train{background:linear-gradient(90deg,#8cc63f,#689f38)}.news-badge{position:absolute;top:10px;left:10px;background:var(--primary-color);color:var(--white);padding:4px 12px;border-radius:4px;font-size:.75rem;font-weight:600}.news-badge.event{background:var(--accent-green)}.news-badge.update{background:var(--text-light)}.news-content{padding:20px}.news-date{font-size:.8rem;color:var(--text-light);margin-bottom:8px}.news-title{font-size:1.1rem;font-weight:700;margin-bottom:12px;line-height:1.4}.news-excerpt{font-size:.9rem;color:var(--text-light);line-height:1.6;margin-bottom:12px}.news-tags{display:flex;gap:6px;flex-wrap:wrap}.news-tag{padding:3px 10px;background:var(--bg-light);border-radius:12px;font-size:.75rem;color:var(--text-dark)}.event-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.event-card{background:var(--white);border-radius:6px;overflow:hidden;box-shadow:var(--shadow);transition:var(--transition)}.event-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}.event-image{width:100%;aspect-ratio: 16/9;background:linear-gradient(180deg,#e8f5e9 0%,#c8e6c9 100%);position:relative;background-size:cover;background-position:center}.event-badge{position:absolute;top:6px;left:6px;background:var(--primary-color);color:var(--white);padding:2px 6px;border-radius:3px;font-size:.6rem;display:flex;align-items:center;gap:3px}.event-badge svg{width:9px;height:9px;fill:currentColor}.event-info{padding:10px}.event-title{font-size:.8rem;font-weight:700;margin-bottom:4px;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.event-desc{font-size:.7rem;color:var(--text-light);overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.contact-methods{display:grid;gap:20px}.contact-card{background:var(--white);padding:24px;border-radius:8px;box-shadow:var(--shadow);transition:var(--transition)}.contact-card:hover{box-shadow:var(--shadow-hover)}.contact-header{display:flex;align-items:center;gap:12px;margin-bottom:16px}.contact-icon{width:40px;height:40px;background:var(--primary-color);border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0}.contact-icon svg{width:22px;height:22px;fill:var(--white)}.contact-title{font-size:1.2rem;font-weight:700}.contact-desc{color:var(--text-light);margin-bottom:16px;line-height:1.7}.contact-link{display:inline-flex;align-items:center;gap:8px;color:var(--primary-color);font-weight:600;padding:10px 20px;border:2px solid var(--primary-color);border-radius:6px;transition:var(--transition)}.contact-link:hover{background:var(--primary-color);color:var(--white)}.contact-link svg{width:16px;height:16px;fill:currentColor}.contact-form{background:var(--white);padding:30px;border-radius:8px;box-shadow:var(--shadow)}.form-title{font-size:1.3rem;font-weight:700;margin-bottom:20px;padding-bottom:12px;border-bottom:2px solid var(--bg-light)}.form-group{margin-bottom:24px}.form-label{display:block;margin-bottom:8px;font-weight:600;font-size:.95rem}.form-label .required{color:#d32f2f;margin-left:4px}.form-input,.form-select,.form-textarea{width:100%;padding:12px 16px;border:2px solid #e0e0e0;border-radius:6px;font-family:inherit;font-size:.95rem;transition:var(--transition)}.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--primary-color)}.form-textarea{min-height:150px;resize:vertical}.form-note{font-size:.85rem;color:var(--text-light);margin-top:6px}.form-submit{width:100%;padding:14px;background:var(--primary-color);color:var(--white);border:none;border-radius:6px;font-size:1.05rem;font-weight:700;cursor:pointer;transition:var(--transition);font-family:inherit}.form-submit:hover{background:var(--primary-dark)}.faq-title{font-size:1.4rem;font-weight:700;margin-bottom:20px}.faq-item{background:var(--white);padding:20px;border-radius:8px;margin-bottom:12px;box-shadow:var(--shadow)}.faq-question{font-weight:700;margin-bottom:10px;display:flex;align-items:flex-start;gap:8px}.faq-q-icon{color:var(--primary-color);font-weight:700;flex-shrink:0}.faq-answer{color:var(--text-light);line-height:1.7;padding-left:20px}.credit-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}.credit-card{background:var(--white);padding:24px;border-radius:8px;box-shadow:var(--shadow);transition:var(--transition)}.credit-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}.credit-header{display:flex;align-items:center;gap:12px;margin-bottom:16px}.credit-avatar{width:50px;height:50px;border-radius:50%;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));display:flex;align-items:center;justify-content:center;color:var(--white);font-weight:700;font-size:1.2rem;flex-shrink:0}.credit-info{flex:1}.credit-name{font-size:1.1rem;font-weight:700;margin-bottom:4px}.credit-role{font-size:.85rem;color:var(--primary-color);font-weight:600}.credit-desc{color:var(--text-light);font-size:.9rem;line-height:1.6;margin-bottom:12px}.credit-contributions{display:flex;flex-wrap:wrap;gap:6px}.contribution-tag{padding:4px 10px;background:var(--bg-light);border-radius:12px;font-size:.75rem;color:var(--text-dark)}.team-list{background:var(--white);padding:30px;border-radius:8px;box-shadow:var(--shadow)}.team-category{margin-bottom:30px}.team-category:last-child{margin-bottom:0}.team-category-title{font-size:1.1rem;font-weight:700;margin-bottom:12px;color:var(--primary-color);padding-bottom:8px;border-bottom:2px solid var(--bg-light)}.team-members{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}.team-member{display:flex;align-items:center;gap:10px;padding:10px;background:var(--bg-light);border-radius:6px;transition:var(--transition)}.team-member:hover{background:#e8f4fc}.member-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--accent-green),var(--accent-yellow));display:flex;align-items:center;justify-content:center;color:var(--white);font-weight:700;font-size:.95rem;flex-shrink:0}.member-name{font-weight:600;font-size:.95rem}.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}.tool-card{background:var(--white);padding:20px;border-radius:8px;box-shadow:var(--shadow);border-left:4px solid var(--primary-color);transition:var(--transition)}.tool-card:hover{box-shadow:var(--shadow-hover)}.tool-name{font-weight:700;font-size:1.05rem;margin-bottom:8px}.tool-desc{font-size:.9rem;color:var(--text-light);line-height:1.6}.tool-link{display:inline-block;margin-top:8px;color:var(--primary-color);font-size:.85rem;font-weight:600}.tool-link:hover{text-decoration:underline}.thanks-section{background:linear-gradient(135deg,var(--primary-color),var(--accent-green));padding:40px;border-radius:8px;color:var(--white);text-align:center;box-shadow:var(--shadow)}.thanks-title{font-size:1.6rem;font-weight:700;margin-bottom:20px}.thanks-text{font-size:1.05rem;line-height:1.8;max-width:700px;margin:0 auto}.pagination{display:flex;justify-content:center;gap:8px;margin-top:50px}.page-btn{width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:var(--white);border:2px solid #e0e0e0;border-radius:50%;cursor:pointer;transition:var(--transition);font-weight:600;font-family:inherit}.page-btn:hover:not(:disabled) {border-color:var(--primary-color);color:var(--primary-color)}.page-btn.active{background:var(--primary-color);border-color:var(--primary-color);color:var(--white)}.page-btn:disabled{opacity:.5;cursor:not-allowed}.loading,.no-posts,.error-message{padding:40px 20px;text-align:center;color:var(--text-light);font-size:.9rem;grid-column: 1 / -1}.error-message{color:#d32f2f}.footer{background:#f8f9fa;padding:30px 4%;text-align:center;font-size:.8rem;color:var(--text-light);margin-top:60px}@media (max-width:1024px){.news-grid{grid-template-columns:repeat(2,1fr)}.credit-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:768px){.page-title{font-size:1.5rem}.news-grid,.credit-grid,.team-members,.tools-grid{grid-template-columns:1fr}.event-list{grid-template-columns:1fr}.filter-tabs{gap:6px}.filter-tab{padding:6px 16px;font-size:.85rem}.contact-form,.intro-section,.team-list,.thanks-section{padding:20px}.form-title{font-size:1.15rem}}@media (max-width:480px){.logo{font-size:1.2rem}.logo-icon{font-size:1.5rem}.page-title{font-size:1.3rem}.section-title{font-size:1.3rem}}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.mt-0{margin-top:0}.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:24px}.mt-4{margin-top:32px}.mt-5{margin-top:40px}.mb-0{margin-bottom:0}.mb-1{margin-bottom:8px}.mb-2{margin-bottom:16px}.mb-3{margin-bottom:24px}.mb-4{margin-bottom:32px}.mb-5{margin-bottom:40px}.p-0{padding:0}.p-1{padding:8px}.p-2{padding:16px}.p-3{padding:24px}.p-4{padding:32px}.p-5{padding:40px}.hidden{display:none}.show{display:block}