:root{--color-bg: #fafafa;--color-bg-card: #ffffff;--color-text: #1a1a1a;--color-text-secondary: #6b7280;--color-text-muted: #9ca3af;--color-border: #e5e7eb;--color-border-light: #f3f4f6;--color-accent: #ec4899;--color-accent-light: #fce7f3;--color-success: #10b981;--color-error: #ef4444;--font-sans: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP", sans-serif;--font-mono: "SF Mono", "Fira Code", monospace;--max-width: 640px;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px rgba(0, 0, 0, .05)}*{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-sans);background-color:var(--color-bg);color:var(--color-text);line-height:1.7;min-height:100vh}a{color:var(--color-accent);text-decoration:none;transition:opacity .2s ease}a:hover{opacity:.8}button{font-family:inherit;font-size:inherit;cursor:pointer;border:none;background:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-md);font-weight:500;transition:all .2s ease}.btn-primary{background-color:var(--color-text);color:var(--color-bg)}.btn-primary:hover{background-color:#374151}.btn-secondary{background-color:var(--color-bg-card);color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover{background-color:var(--color-border-light)}.btn-accent{background-color:var(--color-accent);color:#fff}.btn-accent:hover{background-color:#db2777}input,textarea{font-family:inherit;font-size:inherit;width:100%;padding:var(--spacing-sm) var(--spacing-md);border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-bg-card);color:var(--color-text);transition:border-color .2s ease}input:focus,textarea:focus{outline:none;border-color:var(--color-accent)}textarea{resize:vertical;min-height:100px}.card{background-color:var(--color-bg-card);border-radius:var(--radius-lg);border:1px solid var(--color-border-light);padding:var(--spacing-lg)}.container{max-width:var(--max-width);margin:0 auto;padding:0 var(--spacing-md)}.loading-container{display:flex;align-items:center;justify-content:center;min-height:100vh}.loading-spinner{width:32px;height:32px;border:2px solid var(--color-border);border-top-color:var(--color-accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.layout{min-height:100vh;display:flex;flex-direction:column}.header{position:sticky;top:0;z-index:100;background-color:#fafafae6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--color-border-light)}.header-content{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-md) 0}.header-title{font-size:1rem;font-weight:600;color:var(--color-text)}.header-user{display:flex;align-items:center;gap:var(--spacing-sm);font-size:.875rem;color:var(--color-text-secondary)}.header-avatar{width:28px;height:28px;border-radius:50%;object-fit:cover}.main{flex:1;padding:var(--spacing-xl) 0}.login-page{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;padding:var(--spacing-md);text-align:center}.login-title{font-size:1.5rem;font-weight:600;margin-bottom:var(--spacing-sm)}.login-subtitle{color:var(--color-text-secondary);margin-bottom:var(--spacing-xl)}.login-btn{display:inline-flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-md) var(--spacing-lg);background-color:#5865f2;color:#fff;font-weight:500;border-radius:var(--radius-md);transition:background-color .2s ease}.login-btn:hover{background-color:#4752c4;opacity:1}.login-btn svg{width:20px;height:20px}.reports-header{margin-bottom:var(--spacing-xl)}.reports-title{font-size:1.25rem;font-weight:600}.reports-list{display:flex;flex-direction:column;gap:var(--spacing-md)}.report-item{display:block;padding:var(--spacing-lg);background-color:var(--color-bg-card);border-radius:var(--radius-lg);border:1px solid var(--color-border-light);transition:all .2s ease}.report-item:hover{border-color:var(--color-border);transform:translateY(-1px);opacity:1}.report-item-date{font-size:.875rem;color:var(--color-text-secondary);margin-bottom:var(--spacing-xs)}.report-item-title{font-weight:500;color:var(--color-text);margin-bottom:var(--spacing-sm)}.report-item-meta{font-size:.75rem;color:var(--color-text-muted)}.report-header{margin-bottom:var(--spacing-xl);padding-bottom:var(--spacing-lg);border-bottom:1px solid var(--color-border-light)}.report-date{font-size:.875rem;color:var(--color-text-secondary);margin-bottom:var(--spacing-xs)}.report-title{font-size:1.5rem;font-weight:600;line-height:1.3}.report-content{margin-bottom:var(--spacing-2xl)}.markdown-content{line-height:1.8}.markdown-content h1,.markdown-content h2,.markdown-content h3,.markdown-content h4{margin-top:var(--spacing-xl);margin-bottom:var(--spacing-md);font-weight:600;line-height:1.3}.markdown-content h1{font-size:1.5rem}.markdown-content h2{font-size:1.25rem}.markdown-content h3{font-size:1.125rem}.markdown-content h4{font-size:1rem}.markdown-content p{margin-bottom:var(--spacing-md)}.markdown-content ul,.markdown-content ol{margin-bottom:var(--spacing-md);padding-left:var(--spacing-lg)}.markdown-content li{margin-bottom:var(--spacing-xs)}.markdown-content blockquote{margin:var(--spacing-md) 0;padding:var(--spacing-md);border-left:3px solid var(--color-accent);background-color:var(--color-accent-light);border-radius:0 var(--radius-md) var(--radius-md) 0}.markdown-content code{font-family:var(--font-mono);font-size:.875em;padding:.1em .3em;background-color:var(--color-border-light);border-radius:var(--radius-sm)}.markdown-content pre{margin:var(--spacing-md) 0;padding:var(--spacing-md);background-color:#1a1a1a;color:#f8f8f2;border-radius:var(--radius-md);overflow-x:auto}.markdown-content pre code{background:none;padding:0;color:inherit}.markdown-content hr{margin:var(--spacing-xl) 0;border:none;border-top:1px solid var(--color-border-light)}.markdown-content table{width:100%;margin:var(--spacing-md) 0;border-collapse:collapse}.markdown-content th,.markdown-content td{padding:var(--spacing-sm);border:1px solid var(--color-border);text-align:left}.markdown-content th{background-color:var(--color-border-light);font-weight:600}.questions-section{margin-top:var(--spacing-2xl);padding-top:var(--spacing-xl);border-top:1px solid var(--color-border-light)}.questions-title{font-size:1.125rem;font-weight:600;margin-bottom:var(--spacing-lg);display:flex;align-items:center;gap:var(--spacing-sm)}.question-card{margin-bottom:var(--spacing-xl);padding:var(--spacing-lg);background-color:var(--color-bg-card);border-radius:var(--radius-lg);border:1px solid var(--color-border-light)}.question-target{font-size:.75rem;font-weight:500;color:var(--color-accent);margin-bottom:var(--spacing-xs)}.question-text{font-weight:500;margin-bottom:var(--spacing-md);line-height:1.5}.answer-form{margin-top:var(--spacing-md)}.answer-textarea{margin-bottom:var(--spacing-sm)}.answer-submit{display:flex;justify-content:flex-end}.answers-list{margin-top:var(--spacing-lg);display:flex;flex-direction:column;gap:var(--spacing-md)}.answer-item{padding:var(--spacing-md);background-color:var(--color-border-light);border-radius:var(--radius-md)}.answer-header{display:flex;align-items:center;gap:var(--spacing-sm);margin-bottom:var(--spacing-sm)}.answer-avatar{width:24px;height:24px;border-radius:50%}.answer-author{font-weight:500;font-size:.875rem}.answer-date{font-size:.75rem;color:var(--color-text-muted)}.answer-text{font-size:.9375rem;white-space:pre-wrap}.error-message{padding:var(--spacing-md);background-color:#fef2f2;border:1px solid #fecaca;border-radius:var(--radius-md);color:var(--color-error);font-size:.875rem}.empty-state{text-align:center;padding:var(--spacing-2xl);color:var(--color-text-secondary)}@media(max-width:640px){:root{--max-width: 100%}.container{padding:0 var(--spacing-lg)}}