*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, Roboto, 'Helvetica Neue', sans-serif;
            background: #f4f7fa;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0 16px;
        }
        a {
            color: #c7442e;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #a3321f;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            color: #0f1a2b;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
            font-weight: 700;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.4rem;
        }
        h2 {
            font-size: 1.8rem;
            border-bottom: 3px solid #e4713a;
            padding-bottom: 6px;
        }
        h3 {
            font-size: 1.4rem;
            color: #2d4059;
        }
        h4 {
            font-size: 1.15rem;
            color: #3a5370;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            padding: 20px 28px 40px;
            border-radius: 24px;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
        }
        @media (max-width: 640px) {
            .container {
                padding: 12px 14px 32px;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.35rem;
            }
            h3 {
                font-size: 1.15rem;
            }
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0 10px;
            border-bottom: 2px solid #e8edf2;
            position: relative;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, #e4713a, #c7442e);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: inline-block;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.85;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #1e2a3a;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: #eef2f6;
        }
        .main-nav {
            display: flex;
            gap: 8px 16px;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            font-weight: 600;
            font-size: 0.95rem;
            padding: 6px 12px;
            border-radius: 40px;
            background: transparent;
            transition: background 0.2s, color 0.2s;
            color: #1e2a3a;
        }
        .main-nav a:hover {
            background: #e4713a20;
            color: #c7442e;
            text-decoration: none;
        }
        .main-nav .active {
            background: #e4713a18;
            color: #c7442e;
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 12px;
                padding: 12px 0 6px;
                border-top: 1px solid #e0e6ed;
                background: #fafcfe;
                border-radius: 16px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 10px 16px;
                width: 100%;
                border-radius: 8px;
            }
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 12px 0 8px;
            margin: 0;
            font-size: 0.85rem;
            color: #5e6f82;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 10px;
            color: #b0bccb;
        }
        .breadcrumb a {
            color: #5e6f82;
        }
        .breadcrumb a:hover {
            color: #c7442e;
        }
        .search-wrap {
            display: flex;
            max-width: 500px;
            margin: 24px 0 20px;
            border-radius: 60px;
            overflow: hidden;
            border: 1px solid #d0d9e3;
            background: #fff;
            transition: box-shadow 0.2s;
        }
        .search-wrap:focus-within {
            box-shadow: 0 0 0 3px #e4713a55;
            border-color: #e4713a;
        }
        .search-wrap input {
            flex: 1;
            border: none;
            padding: 12px 18px;
            font-size: 1rem;
            background: transparent;
            outline: none;
            min-width: 0;
        }
        .search-wrap button {
            background: #e4713a;
            border: none;
            color: #fff;
            padding: 0 22px;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.2s;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .search-wrap button:hover {
            background: #c7442e;
        }
        .hero-img {
            margin: 20px 0 28px;
            border-radius: 16px;
            overflow: hidden;
            background: #eef2f6;
            aspect-ratio: 1200/630;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            background: linear-gradient(135deg, #f9e3d0, #f5d5b8);
        }
        .hero-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 16px;
        }
        .hero-img .img-placeholder {
            font-size: 4rem;
            color: #c7442e;
            opacity: 0.4;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            padding: 40px;
            text-align: center;
        }
        .hero-img .img-placeholder i {
            font-size: 5rem;
        }
        .toc {
            background: #f2f6fb;
            padding: 20px 24px;
            border-radius: 16px;
            margin: 24px 0 32px;
            border-left: 5px solid #e4713a;
        }
        .toc h3 {
            margin-top: 0;
            font-size: 1.3rem;
        }
        .toc ul {
            columns: 1;
            list-style: none;
            padding: 0;
            margin: 8px 0 0;
        }
        .toc li {
            padding: 4px 0;
            border-bottom: 1px solid #e0e6ed;
        }
        .toc li:last-child {
            border-bottom: 0;
        }
        .toc a {
            display: block;
            padding: 4px 0;
            font-weight: 500;
        }
        @media (min-width: 600px) {
            .toc ul {
                columns: 2;
                column-gap: 32px;
            }
        }
        .link-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 12px;
            padding: 12px 0 8px;
            margin: 16px 0;
        }
        .link-cloud a {
            background: #f0f4fa;
            padding: 6px 16px;
            border-radius: 40px;
            font-size: 0.88rem;
            font-weight: 500;
            transition: background 0.2s, transform 0.1s;
            color: #1e2a3a;
            border: 1px solid #dce3ed;
        }
        .link-cloud a:hover {
            background: #e4713a;
            color: #fff;
            border-color: #e4713a;
            text-decoration: none;
            transform: translateY(-2px);
        }
        .feedback-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 40px 0 20px;
            padding: 28px 24px;
            background: #f8fafd;
            border-radius: 20px;
            border: 1px solid #e6ecf3;
        }
        .feedback-section form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .feedback-section form label {
            font-weight: 600;
            font-size: 0.95rem;
        }
        .feedback-section form input,
        .feedback-section form textarea,
        .feedback-section form select {
            padding: 10px 14px;
            border-radius: 12px;
            border: 1px solid #d0d9e3;
            font-size: 0.95rem;
            background: #fff;
            transition: border 0.2s;
        }
        .feedback-section form input:focus,
        .feedback-section form textarea:focus,
        .feedback-section form select:focus {
            border-color: #e4713a;
            outline: none;
            box-shadow: 0 0 0 3px #e4713a33;
        }
        .feedback-section form textarea {
            min-height: 80px;
            resize: vertical;
        }
        .feedback-section form button {
            background: #e4713a;
            color: #fff;
            border: none;
            padding: 10px 20px;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            align-self: flex-start;
            transition: background 0.2s, transform 0.1s;
        }
        .feedback-section form button:hover {
            background: #c7442e;
            transform: scale(1.02);
        }
        .score-group {
            display: flex;
            gap: 8px;
            align-items: center;
            flex-wrap: wrap;
        }
        .score-group select {
            width: 100px;
        }
        @media (max-width: 700px) {
            .feedback-section {
                grid-template-columns: 1fr;
            }
        }
        .site-footer {
            margin-top: 48px;
            padding: 32px 0 16px;
            border-top: 2px solid #e0e6ed;
            font-size: 0.9rem;
            color: #4a5b6f;
        }
        .site-footer friend-link {
            display: block;
            margin: 12px 0 16px;
            padding: 12px 16px;
            background: #f2f6fb;
            border-radius: 12px;
            font-weight: 500;
        }
        .site-footer friend-link a {
            display: inline-block;
            margin: 0 12px 4px 0;
        }
        .copyright {
            text-align: center;
            padding-top: 16px;
            border-top: 1px solid #e0e6ed;
            font-size: 0.85rem;
            color: #6a7b8e;
        }
        .copyright strong {
            color: #1e2a3a;
        }
        .last-updated {
            display: inline-block;
            background: #eef3f8;
            padding: 2px 14px;
            border-radius: 40px;
            font-size: 0.8rem;
            margin-bottom: 12px;
        }
        .text-muted {
            color: #5e6f82;
        }
        .mt-1 {
            margin-top: 0.8rem;
        }
        .mb-1 {
            margin-bottom: 0.8rem;
        }
        .flex-between {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .gap-8 {
            gap: 8px;
        }
        .star-rating {
            color: #f5b342;
            letter-spacing: 2px;
        }
        .section-highlight {
            background: #f9f3ee;
            border-radius: 16px;
            padding: 20px 24px;
            margin: 24px 0;
            border-left: 6px solid #e4713a;
        }
        .insight-box {
            background: #eef6f0;
            border-radius: 12px;
            padding: 16px 20px;
            margin: 18px 0;
            border-left: 4px solid #3a9b5e;
        }
        .insight-box i {
            color: #3a9b5e;
            margin-right: 8px;
        }
        .emoji-lg {
            font-size: 1.4rem;
            margin-right: 4px;
        }
        ol li,
        ul li {
            margin-bottom: 0.3rem;
        }
        @media (max-width: 480px) {
            .hero-img .img-placeholder i {
                font-size: 3rem;
            }
            .hero-img .img-placeholder {
                font-size: 2.5rem;
            }
        }