.bottom-nav{position:fixed;bottom:0;left:0;right:0;height:calc(var(--bottom-nav-height) + var(--safe-area-bottom));background:var(--bg-header);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-top:1px solid var(--border);z-index:1000;padding-bottom:var(--safe-area-bottom);transition:background-color .3s ease,border-color .3s ease}.bottom-nav-container{display:flex;justify-content:space-around;align-items:center;height:100%;max-width:500px;margin:0 auto}.nav-item{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;color:var(--text-soft);transition:color .3s ease;position:relative;height:100%}.nav-item.active{color:var(--text-main)}.nav-icon-container{position:relative;display:flex;align-items:center;justify-content:center;margin-bottom:4px}.nav-glow{position:absolute;width:40px;height:40px;background:var(--primary);opacity:.15;border-radius:50%;z-index:-1}.nav-label{font-size:10px;font-weight:500}.nav-item.active .nav-label{font-weight:700}.layout{min-height:100vh;display:flex;flex-direction:column;background:var(--bg-main)}.header{height:60px;display:flex;align-items:center;justify-content:center;background:var(--bg-header);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:900}.logo{font-size:1.3rem;letter-spacing:2.5px;font-weight:900;cursor:pointer;color:var(--text-main);display:inline-block}.main-content{padding:16px;max-width:500px;margin:0 auto;width:100%;flex:1}.footer{background:var(--bg-surface);border-top:1px solid var(--border);padding:40px 24px calc(var(--bottom-nav-height) + 40px);width:100%}.footer-content{max-width:500px;margin:0 auto;text-align:center}.footer-logo{font-size:1.6rem;letter-spacing:4px;font-weight:900;margin-bottom:8px;color:var(--text-main);display:inline-block}.footer-desc{font-size:12px;color:var(--text-soft);margin-bottom:24px}.footer-nav{display:flex;flex-wrap:wrap;justify-content:center;gap:16px;margin-bottom:32px}.footer-nav button{font-size:13px;color:var(--text-main);font-weight:500;transition:color .3s}.footer-nav button:hover{color:var(--primary)}.footer-bottom{font-size:10px;color:var(--text-soft);border-top:1px solid var(--border);padding-top:24px}.article-card{background:var(--bg-surface);border-radius:16px;overflow:hidden;box-shadow:var(--shadow-md);margin-bottom:20px;cursor:pointer;transition:transform .2s ease,background-color .3s ease;border:1px solid var(--border)}.card-image-container{position:relative;aspect-ratio:16 / 9;overflow:hidden}.card-image{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}.article-card:hover .card-image{transform:scale(1.05)}.card-category{position:absolute;top:12px;left:12px;background:#0f172acc;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);color:var(--primary);padding:4px 10px;border-radius:20px;font-size:10px;font-weight:700;display:flex;align-items:center;gap:4px}.card-content{padding:16px}.card-meta{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--text-soft);margin-bottom:8px}.card-title{font-size:16px;color:var(--text-main);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.home-page{padding-bottom:40px}.welcome-banner{background:#0f172a;margin:-16px -16px 32px;padding:80px 24px;position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:center;min-height:260px}.banner-bg{position:absolute;top:0;left:0;right:0;bottom:0;z-index:1;overflow:hidden;perspective:1000px}.grid-overlay{position:absolute;top:-50%;left:-50%;width:200%;height:200%;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:40px 40px;z-index:2;transform:rotateX(60deg);transform-origin:center center;animation:grid-move 20s linear infinite;mask-image:linear-gradient(to top,#000 30%,#0000 80%);-webkit-mask-image:linear-gradient(to top,rgba(0,0,0,1) 30%,rgba(0,0,0,0) 80%)}@keyframes grid-move{0%{background-position:0 0}to{background-position:0 400px}}.structural-line{position:absolute;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);box-shadow:0 0 10px #ffffff1a;z-index:1}.structural-beam{position:absolute;background:linear-gradient(180deg,transparent,rgba(59,130,246,.2),transparent);z-index:1}.banner-content{position:relative;z-index:2}.banner-tag-wrapper{display:inline-flex;align-items:center;margin-bottom:16px}.banner-tag{font-size:11px;font-weight:400;text-transform:uppercase;letter-spacing:.3em;color:var(--primary);position:relative;overflow:hidden;padding:4px 0}.banner-tag:after{content:"";position:absolute;top:0;left:-100%;width:50%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,215,0,.4),transparent);animation:shine 4s infinite}@keyframes shine{0%{left:-100%}20%{left:150%}to{left:150%}}.banner-title{font-size:28px;line-height:1.5;color:var(--white);font-weight:700;letter-spacing:-.01em}.slogan-row{display:block;margin-bottom:4px}.slogan-row.highlight{color:var(--primary)}.banner-search-trigger{margin-top:32px;background:#ffffff1a;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.2);padding:14px 20px;border-radius:12px;display:flex;align-items:center;gap:12px;color:#ffffffb3;cursor:pointer;max-width:400px;transition:all .3s ease}.banner-search-trigger:hover{background:#ffffff26;border-color:#ffffff4d;color:var(--white);transform:translateY(-2px)}.banner-search-trigger span{font-size:15px}.category-scroll{overflow-x:auto;margin:0 -16px 24px;padding:8px 16px;scrollbar-width:none}.category-scroll::-webkit-scrollbar{display:none}.category-container{display:flex;gap:12px}.category-chip{white-space:nowrap;padding:10px 20px;background:var(--bg-surface);border:1px solid var(--border);border-radius:24px;font-size:14px;font-weight:500;color:var(--text-soft);transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:var(--shadow-sm)}.category-chip.active{background:var(--primary);border-color:var(--primary);color:#000;font-weight:700}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;padding:0 4px}.section-label{font-size:14px;font-weight:700;color:var(--text-main);padding-left:12px;border-left:4px solid var(--primary);margin-bottom:0}.view-all{display:flex;align-items:center;gap:4px;font-size:13px;font-weight:700;color:var(--primary);background:none;border:none;cursor:pointer;padding:8px;margin-right:-8px;transition:opacity .2s}.view-all:hover{opacity:.7}.article-detail{background:var(--bg-surface);min-height:100vh;position:relative;z-index:1001;transition:background-color .3s ease;max-width:500px;margin:0 auto;padding-top:60px}.detail-header{position:fixed;top:0;left:50%;transform:translate(-50%);width:100%;max-width:500px;height:60px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;z-index:1100;background:var(--bg-header);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}.back-button,.action-button{width:40px;height:40px;display:flex;align-items:center;justify-content:center;color:var(--text-main);border-radius:50%;transition:background-color .2s ease}.action-button:active{background:var(--border)}.bookmark-btn.active{color:var(--primary-dark)}[data-theme=dark] .bookmark-btn.active{color:var(--primary)}.header-actions{display:flex;gap:8px}.hero-section{width:100%;aspect-ratio:4 / 3;position:relative;overflow:hidden}.hero-image{width:100%;height:100%;object-fit:cover}.hero-overlay{position:absolute;bottom:0;left:0;width:100%;height:100%;background:linear-gradient(to top,rgba(0,0,0,.9) 0%,rgba(0,0,0,.4) 40%,transparent 100%);display:flex;align-items:flex-end;padding:24px 20px 48px}.hero-content-wrapper{width:100%}.detail-content{padding:32px 20px 100px;background:var(--bg-surface);border-radius:32px 32px 0 0;margin-top:-32px;position:relative;z-index:10;transition:background-color .3s ease;box-shadow:0 -10px 30px #0000001a}.category-tag{display:inline-block;background:var(--primary);color:#000;font-size:11px;font-weight:800;padding:4px 14px;border-radius:20px;margin-bottom:12px;text-transform:uppercase;letter-spacing:.05em}.detail-title{font-size:24px;line-height:1.3;margin-bottom:12px;color:#fff;font-weight:800;text-shadow:0 2px 4px rgba(0,0,0,.3)}.detail-meta{font-size:13px;color:#fffc;display:flex;align-items:center;gap:8px}.article-body{font-size:16px;line-height:1.8;color:var(--text-main)}.article-body p{margin-bottom:20px}.article-body h2{font-size:20px;margin:32px 0 16px;border-left:4px solid var(--primary);padding-left:12px}.article-body img{width:100%;border-radius:12px;margin:16px 0}.info-box{background:var(--bg-main);border:1px solid var(--border);padding:20px;border-radius:16px;margin:24px 0}.info-box h3{font-size:16px;margin-bottom:12px}.info-box ul{padding-left:20px;list-style:disc}.info-box li{margin-bottom:8px}.ad-box{background:#fffbeb;border:1px dashed #F59E0B;padding:16px;border-radius:12px;margin:24px 0;position:relative}.ad-box.secondary{background:#f0f9ff;border-color:#0ea5e9}.ad-label{position:absolute;top:-10px;left:12px;background:#f59e0b;color:#fff;font-size:10px;padding:2px 6px;border-radius:4px;font-weight:700}.ad-box.secondary .ad-label{background:#0ea5e9}.ad-box p{margin-bottom:0;font-size:14px;font-weight:700;color:var(--text-main);text-align:center}.related-articles-section{margin:64px -20px 32px;padding:0 0 24px}.related-title{font-size:18px;font-weight:800;margin-bottom:20px;padding:0 20px;color:var(--text-main);display:flex;align-items:center;gap:8px}.related-title:before{content:"";width:4px;height:18px;background:var(--primary);border-radius:2px}.related-scroll-container{display:flex;gap:16px;overflow-x:auto;padding:0 20px 20px;scroll-snap-type:x mandatory;scrollbar-width:none;-ms-overflow-style:none}.related-scroll-container::-webkit-scrollbar{display:none}.related-card-wrapper{flex:0 0 260px;scroll-snap-align:start}.related-card-wrapper .article-card{margin-bottom:0;height:100%}.related-card-wrapper .card-image-container{aspect-ratio:3 / 2}.related-card-wrapper .card-title{font-size:14px;-webkit-line-clamp:2;line-clamp:2}.related-card-wrapper .card-content{padding:12px}.article-navigation{display:flex;flex-direction:column;gap:12px;margin:48px 0;border-top:1px solid var(--border);padding-top:24px}.nav-btn{display:flex;align-items:center;gap:12px;padding:16px;background:var(--bg-main);border-radius:12px;text-align:left;border:1px solid var(--border);transition:all .2s ease}.nav-btn:active{transform:scale(.98);background:var(--border)}.nav-btn.next{text-align:right;justify-content:flex-end}.nav-text{display:flex;flex-direction:column;flex:1}.nav-label{font-size:10px;color:var(--text-soft);text-transform:uppercase;font-weight:700}.nav-title{font-size:14px;font-weight:700;color:var(--text-main);display:-webkit-box;-webkit-line-clamp:1;line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}.cta-container{margin-top:48px;text-align:center}.cta-button{background:var(--text-main);color:var(--primary);width:100%;padding:16px;border-radius:12px;font-size:16px;font-weight:700;box-shadow:var(--shadow-md)}.article-keywords{display:flex;flex-wrap:wrap;gap:8px;margin:32px 0}.keyword-tag{background:var(--bg-surface);color:var(--text-soft);font-size:11px;padding:4px 12px;border-radius:100px;border:1px solid var(--border);transition:all .2s ease}.keyword-tag:hover{border-color:var(--primary);color:var(--primary-dark)}[data-theme=dark] .keyword-tag:hover{color:var(--primary)}.profile-page{padding-bottom:40px}.profile-header{margin:-16px -16px 24px;padding:40px 24px;background:var(--bg-surface);border-bottom:1px solid var(--border)}.profile-info{display:flex;align-items:center;gap:16px}.avatar-placeholder{width:60px;height:60px;background:var(--primary);color:var(--bg-dark);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:800}.user-name{font-size:20px;margin-bottom:4px}.user-status{font-size:12px;color:var(--text-soft)}.profile-section{margin-bottom:32px}.section-label{font-size:12px;color:var(--text-soft);text-transform:uppercase;letter-spacing:1px;margin-bottom:12px}.menu-list{background:var(--bg-surface);border-radius:16px;border:1px solid var(--border);overflow:hidden}.menu-item{width:100%;display:flex;justify-content:space-between;align-items:center;padding:16px;border-bottom:1px solid var(--border);transition:background-color .2s ease}.menu-item:last-child{border-bottom:none}.menu-item:active{background:var(--gray-100)}[data-theme=dark] .menu-item:active{background:#ffffff0d}.menu-left{display:flex;align-items:center;gap:12px;font-size:15px;font-weight:500}.menu-item.disabled{opacity:.5;cursor:default}.toggle-switch{width:44px;height:24px;background:var(--border);border-radius:12px;position:relative;transition:background-color .3s ease}.toggle-switch.active{background:var(--primary-dark)}[data-theme=dark] .toggle-switch.active{background:var(--primary)}.switch-handle{width:20px;height:20px;background:var(--white);border-radius:50%;position:absolute;top:2px;left:2px;transition:transform .3s ease;box-shadow:0 2px 4px #0000001a}.toggle-switch.active .switch-handle{transform:translate(20px)}.history-scroll{overflow-x:auto;margin:0 -16px;padding:0 16px 12px;scrollbar-width:none}.history-scroll::-webkit-scrollbar{display:none}.history-track{display:flex;gap:12px}.history-item{min-width:240px;flex-shrink:0}.empty-state{text-align:center;padding:48px 24px;background:var(--bg-surface);border-radius:16px;border:1px dashed var(--border);color:var(--text-soft)}.empty-state.mini{padding:24px;font-size:13px}.empty-icon{opacity:.3;margin:0 auto 16px}.back-to-home{margin-top:16px;background:var(--primary);color:var(--bg-dark);padding:10px 24px;border-radius:20px;font-size:14px;font-weight:700}.profile-footer{text-align:center;font-size:10px;color:var(--text-soft);margin-top:48px}.search-page{padding-bottom:40px}.search-header-container{margin:-16px -16px 24px;padding:24px 16px;background:var(--bg-surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:900}.search-input-wrapper{display:flex;align-items:center;background:var(--bg-main);border:1px solid var(--border);border-radius:12px;padding:10px 16px}.search-icon{color:var(--text-soft);margin-right:12px}.search-input-wrapper input{flex:1;background:transparent;border:none;outline:none;font-family:inherit;font-size:15px;color:var(--text-main)}.clear-icon{color:var(--text-soft);cursor:pointer}.results-container{padding:0 4px}.results-count{font-size:13px;color:var(--text-soft);margin-bottom:16px}.no-results{text-align:center;padding:60px 24px;color:var(--text-soft)}.search-suggestions{padding-top:24px}.suggestion-title{font-size:14px;color:var(--text-soft);margin-bottom:16px}.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}.tag-chip{background:var(--bg-surface);border:1px solid var(--border);padding:8px 16px;border-radius:20px;font-size:14px;color:var(--text-main)}:root{--font-main: "Noto Sans JP", sans-serif;--bottom-nav-height: 70px;--safe-area-bottom: env(safe-area-inset-bottom);--primary: #FFD700;--primary-dark: #CCAC00;--bg-main: #F9FAFB;--bg-surface: #FFFFFF;--bg-header: rgba(255, 255, 255, .8);--text-main: #1F2937;--text-soft: #64748B;--border: #E5E7EB;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1);--white: #FFFFFF}[data-theme=dark]{--bg-main: #0F172A;--bg-surface: #1E293B;--bg-header: rgba(15, 23, 42, .8);--text-main: #F8FAFC;--text-soft: #94A3B8;--border: #334155;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .5);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .5);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .5)}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}html,body{font-family:var(--font-main);background-color:var(--bg-main);color:var(--text-main);overflow-x:hidden;transition:background-color .3s ease,color .3s ease}#root{min-height:100%;display:flex;flex-direction:column}h1,h2,h3,h4{font-weight:700;line-height:1.4}a{text-decoration:none;color:inherit}ul{list-style:none}button{border:none;background:none;font-family:inherit;cursor:pointer;color:inherit}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}