*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-deep: #0d0800;--bg-base: #130900;--bg-card: #1a0e00;--bg-hover: #221200;--border: #3a2000;--border-light: #2a1500;--accent: #ff9900;--accent-dim: #cc7700;--gold: #ffcc44;--red: #cc3300;--muted: #886644;--muted-dim: #554433;--text-body: #998866;--color-japan: #ff9900;--color-usa: #4488ff;--color-germany: #44cc88;--color-korea: #ff4488;--sidenav-width: 200px;--font-serif: Georgia, "Noto Serif JP", serif;--font-sans: "Noto Sans JP", system-ui, sans-serif;--font-mono: "JetBrains Mono", monospace}html{scroll-behavior:smooth}body{background:var(--bg-base);color:var(--text-body);font-family:var(--font-sans);font-size:14px;line-height:1.6}.app{display:flex;height:100vh;overflow:hidden}.sidenav{width:var(--sidenav-width);background:var(--bg-deep);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0;position:sticky;top:0;height:100vh;overflow-y:auto;padding:20px 0}.sidenav-title{color:var(--accent);font-size:10px;font-weight:700;letter-spacing:.15em;text-transform:uppercase;padding:0 16px 12px;border-bottom:1px solid var(--border);margin-bottom:8px}.nav-item{display:block;padding:10px 16px;color:var(--muted);font-size:12px;cursor:pointer;border-left:2px solid transparent;border-bottom:none;background:none;width:100%;text-align:left;transition:color .15s,background .15s,border-color .15s;font-family:var(--font-sans)}.nav-item:hover{color:var(--gold);background:var(--bg-hover)}.nav-item.active{color:var(--accent);border-left-color:var(--accent);background:var(--bg-card)}.main{flex:1;overflow-y:auto;background:var(--bg-base)}.main::-webkit-scrollbar{width:4px}.main::-webkit-scrollbar-track{background:var(--bg-deep)}.main::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}.hero{background:linear-gradient(135deg,var(--bg-deep) 0%,#1a0800 50%,#0d0200 100%);padding:56px 56px 48px;border-bottom:1px solid var(--border)}.hero-label{color:var(--red);font-size:10px;letter-spacing:.25em;text-transform:uppercase;margin-bottom:12px;font-family:var(--font-mono)}.hero-title{color:var(--accent);font-size:36px;font-weight:700;font-family:var(--font-serif);line-height:1.2;margin-bottom:16px}.hero-sub{color:var(--muted);font-size:13px;max-width:480px;line-height:1.7}.metric-section{padding:48px 56px;border-bottom:1px solid var(--border-light)}.section-header{display:flex;align-items:baseline;gap:14px;margin-bottom:8px}.section-num{color:var(--red);font-size:10px;letter-spacing:.15em;font-family:var(--font-mono)}.section-title{color:var(--gold);font-size:22px;font-weight:700;font-family:var(--font-serif)}.section-desc{color:var(--muted);font-size:12px;margin-bottom:24px;line-height:1.7;max-width:640px}.kpi-row{display:flex;gap:12px;margin-bottom:24px}.kpi-card{flex:1;background:var(--bg-card);border:1px solid var(--border);border-radius:4px;padding:14px 16px}.kpi-label{color:var(--muted);font-size:10px;margin-bottom:6px;letter-spacing:.05em}.kpi-value{color:var(--accent);font-size:20px;font-weight:700;font-family:var(--font-mono);line-height:1.2}.kpi-change{color:var(--red);font-size:10px;margin-top:4px}.kpi-change.positive{color:#4c8}.chart-wrap{background:var(--bg-deep);border:1px solid var(--border);border-radius:4px;padding:16px}.chart-container{width:100%;height:320px}.section-source{color:var(--muted-dim);font-size:10px;margin-top:10px;font-family:var(--font-mono)}@media(max-width:768px){.app{flex-direction:column;height:auto;overflow:visible}.sidenav{width:100%;height:auto;position:sticky;top:0;flex-direction:row;flex-wrap:nowrap;overflow-x:auto;overflow-y:visible;padding:0;z-index:100;border-right:none;border-bottom:1px solid var(--border)}.sidenav-title{display:none}.nav-item{white-space:nowrap;border-left:none;border-bottom:2px solid transparent;padding:12px 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