*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.7;
            color: #1a1a2e;
            background: #faf9f6;
            padding: 0;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        a {
            color: #0057b3;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover,
        a:focus-visible {
            color: #ff6b35;
            text-decoration: underline;
        }
        a:focus-visible {
            outline: 3px solid #ff6b35;
            outline-offset: 2px;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            color: #0a0a1a;
            margin-top: 0;
        }
        h1 {
            font-size: clamp(1.95rem, 4.5vw, 3.2rem);
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            margin-top: 2.8rem;
            border-bottom: 4px solid #ff6b35;
            padding-bottom: 0.35rem;
            display: inline-block;
        }
        h3 {
            font-size: clamp(1.2rem, 2.2vw, 1.6rem);
            margin-top: 2rem;
            color: #1a3a5c;
        }
        h4 {
            font-size: 1.05rem;
            margin-top: 1.4rem;
            color: #2d4a6e;
        }
        p {
            margin-bottom: 1.1rem;
            color: #2c2c3e;
        }
        ul,
        ol {
            margin: 0.8rem 0 1.4rem 1.8rem;
            color: #2c2c3e;
        }
        li {
            margin-bottom: 0.4rem;
        }
        .container {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .section-card {
            background: #ffffff;
            border-radius: 20px;
            padding: clamp(1.2rem, 3vw, 2.4rem);
            margin-bottom: 2rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            border: 1px solid #ececec;
            transition: box-shadow 0.25s;
        }
        .section-card:hover {
            box-shadow: 0 8px 36px rgba(0, 0, 0, 0.07);
        }
        .badge {
            display: inline-block;
            background: #ff6b35;
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            padding: 0.2rem 0.8rem;
            border-radius: 40px;
            text-transform: uppercase;
        }
        .emoji-lg {
            font-size: 1.6em;
            display: inline-block;
            margin-right: 0.15em;
        }
        .text-highlight {
            background: linear-gradient(120deg, #ffedd5 0%, #ffedd5 40%, transparent 80%);
            padding: 0.1rem 0.4rem;
            font-weight: 600;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: #0057b3;
            color: #fff;
            padding: 0.6rem 1.5rem;
            border-radius: 60px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: background 0.2s, transform 0.15s;
            font-size: 0.95rem;
        }
        .btn:hover {
            background: #003f8a;
            transform: translateY(-2px);
            text-decoration: none;
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            border: 2px solid #0057b3;
            color: #0057b3;
        }
        .btn-outline:hover {
            background: #0057b3;
            color: #fff;
        }
        .site-header {
            background: #0a0a1a;
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.5rem 1rem;
        }
        .my-logo {
            font-size: clamp(1.2rem, 2.8vw, 1.9rem);
            font-weight: 800;
            letter-spacing: -0.03em;
            background: linear-gradient(135deg, #ff6b35, #ffb347);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none !important;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo:hover {
            opacity: 0.88;
            text-decoration: none !important;
        }
        .my-logo i {
            -webkit-text-fill-color: #ff6b35;
            font-size: 0.9em;
        }
        .my-logo small {
            font-size: 0.45em;
            -webkit-text-fill-color: #aaa;
            font-weight: 400;
            display: block;
            letter-spacing: 0.02em;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.2rem 1.2rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #ddd;
            font-size: 0.9rem;
            font-weight: 500;
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
            transition: color 0.2s, border-color 0.2s;
            text-decoration: none;
        }
        .main-nav a:hover {
            color: #ffb347;
            border-bottom-color: #ff6b35;
            text-decoration: none;
        }
        .nav-search-form {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 60px;
            padding: 0.1rem 0.1rem 0.1rem 1rem;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .nav-search-form input {
            background: transparent;
            border: none;
            color: #fff;
            padding: 0.4rem 0.2rem;
            font-size: 0.85rem;
            width: 110px;
            outline: none;
        }
        .nav-search-form input::placeholder {
            color: #999;
        }
        .nav-search-form button {
            background: #ff6b35;
            border: none;
            color: #fff;
            padding: 0.4rem 0.9rem;
            border-radius: 60px;
            cursor: pointer;
            font-size: 0.8rem;
            font-weight: 600;
            transition: background 0.2s;
        }
        .nav-search-form button:hover {
            background: #e85520;
        }
        .breadcrumb-wrap {
            background: #f0ede8;
            padding: 0.6rem 0;
            font-size: 0.8rem;
            border-bottom: 1px solid #e2ddd6;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.3rem 0.6rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .breadcrumb li {
            margin: 0;
            display: flex;
            align-items: center;
            gap: 0.3rem;
            color: #555;
        }
        .breadcrumb li+li::before {
            content: "›";
            color: #999;
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .breadcrumb a {
            color: #0057b3;
        }
        .breadcrumb .current {
            color: #1a1a2e;
            font-weight: 600;
        }
        .hero {
            padding: 2.5rem 0 1.8rem;
            background: linear-gradient(165deg, #faf9f6 0%, #f0ede8 100%);
        }
        .hero h1 {
            margin-bottom: 0.5rem;
        }
        .hero .subtitle {
            font-size: 1.1rem;
            color: #4a4a5e;
            max-width: 720px;
        }
        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 2rem;
            margin-top: 1rem;
            font-size: 0.85rem;
            color: #666;
        }
        .hero-meta i {
            color: #ff6b35;
            margin-right: 0.3rem;
        }
        .featured-image-wrap {
            margin: 1.8rem 0 2.5rem;
            border-radius: 16px;
            overflow: hidden;
            background: #e8e4de;
            position: relative;
        }
        .featured-image-wrap img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .featured-image-wrap figcaption {
            padding: 0.6rem 1rem;
            font-size: 0.8rem;
            color: #555;
            background: #fff;
            border-top: 1px solid #e2ddd6;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        @media (min-width: 820px) {
            .content-grid {
                grid-template-columns: 1fr 300px;
            }
            .content-grid .main-col {
                order: 1;
            }
            .content-grid .side-col {
                order: 2;
            }
        }
        .side-col .sticky-wrap {
            position: sticky;
            top: 90px;
        }
        .side-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.2rem 1.4rem;
            margin-bottom: 1.5rem;
            border: 1px solid #ececec;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
        }
        .side-card h3 {
            font-size: 1rem;
            margin-top: 0;
            border-bottom: 2px solid #ff6b35;
            padding-bottom: 0.3rem;
            display: inline-block;
        }
        .side-link-list {
            list-style: none;
            margin: 0.6rem 0 0;
            padding: 0;
        }
        .side-link-list li {
            margin-bottom: 0.3rem;
            padding: 0.2rem 0;
            border-bottom: 1px solid #f0eee8;
        }
        .side-link-list a {
            font-size: 0.88rem;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .side-link-list a i {
            color: #ff6b35;
            font-size: 0.7rem;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.2rem 0;
            border-radius: 12px;
            border: 1px solid #e8e4de;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
            min-width: 480px;
        }
        th {
            background: #0a0a1a;
            color: #fff;
            font-weight: 600;
            padding: 0.7rem 1rem;
            text-align: left;
        }
        td {
            padding: 0.6rem 1rem;
            border-bottom: 1px solid #ececec;
        }
        tr:last-child td {
            border-bottom: none;
        }
        tr:nth-child(even) td {
            background: #f8f7f4;
        }
        .interaction-area {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.8rem;
            margin: 2.5rem 0 1.5rem;
        }
        @media (min-width: 600px) {
            .interaction-area {
                grid-template-columns: 1fr 1fr;
            }
        }
        .comment-box textarea,
        .score-box select,
        .comment-box input {
            width: 100%;
            padding: 0.7rem 1rem;
            border-radius: 12px;
            border: 1px solid #d6d2ca;
            font-size: 0.95rem;
            font-family: inherit;
            background: #fff;
            transition: border-color 0.2s;
        }
        .comment-box textarea:focus,
        .score-box select:focus,
        .comment-box input:focus {
            border-color: #ff6b35;
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.15);
        }
        .comment-box textarea {
            min-height: 100px;
            resize: vertical;
        }
        .form-group {
            margin-bottom: 0.9rem;
        }
        .form-group label {
            font-weight: 600;
            font-size: 0.9rem;
            display: block;
            margin-bottom: 0.25rem;
        }
        .site-footer {
            background: #0a0a1a;
            color: #bbb;
            padding: 2.5rem 0 1.8rem;
            margin-top: 3rem;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.8rem;
        }
        @media (min-width: 640px) {
            .footer-inner {
                grid-template-columns: 2fr 1fr 1fr;
            }
        }
        .site-footer h4 {
            color: #fff;
            font-size: 1rem;
            margin-top: 0;
            border-bottom: 2px solid #ff6b35;
            padding-bottom: 0.3rem;
            display: inline-block;
        }
        .site-footer a {
            color: #bbb;
            font-size: 0.88rem;
        }
        .site-footer a:hover {
            color: #ffb347;
        }
        friend-link {
            display: block;
            margin: 0.5rem 0;
        }
        friend-link a {
            display: inline-block;
            padding: 0.15rem 0;
        }
        .footer-copy {
            text-align: center;
            border-top: 1px solid #2a2a3e;
            padding-top: 1.5rem;
            margin-top: 1.8rem;
            font-size: 0.8rem;
            color: #777;
        }
        .footer-copy a {
            color: #999;
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding: 0.8rem 0 0.4rem;
                gap: 0.4rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.5rem 0.6rem;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }
            .nav-search-form {
                margin-top: 0.4rem;
                width: 100%;
            }
            .nav-search-form input {
                width: 1fr;
                flex: 1;
            }
            .header-inner {
                align-items: center;
            }
            .breadcrumb-wrap {
                font-size: 0.72rem;
            }
            .section-card {
                padding: 1rem 1.2rem;
            }
            .side-col .sticky-wrap {
                position: static;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .hero-meta {
                flex-direction: column;
                gap: 0.3rem;
            }
            .table-wrap table {
                font-size: 0.78rem;
                min-width: 340px;
            }
            .interaction-area {
                grid-template-columns: 1fr;
            }
        }
        .fade-up {
            opacity: 0;
            transform: translateY(18px);
            animation: fadeUp 0.6s ease forwards;
        }
        @keyframes fadeUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .delay-1 {
            animation-delay: 0.1s;
        }
        .delay-2 {
            animation-delay: 0.2s;
        }
        .delay-3 {
            animation-delay: 0.3s;
        }
        @media print {
            .site-header,
            .breadcrumb-wrap,
            .site-footer,
            .interaction-area,
            .nav-search-form,
            .side-col {
                display: none !important;
            }
            .content-grid {
                display: block;
            }
            body {
                background: #fff;
                font-size: 12pt;
            }
            .section-card {
                box-shadow: none;
                border: 1px solid #ddd;
                break-inside: avoid;
            }
        }