*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            background: #f8f5f0;
            color: #1e1a17;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: #6d2e1f;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #b4533a;
            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 {
            font-weight: 700;
            line-height: 1.25;
            color: #2d1f1a;
        }
        h1 {
            font-size: 2.2rem;
            margin-bottom: 1rem;
        }
        h2 {
            font-size: 1.75rem;
            margin-top: 2.5rem;
            margin-bottom: 0.75rem;
            border-bottom: 3px solid #d4a373;
            padding-bottom: 0.4rem;
        }
        h3 {
            font-size: 1.35rem;
            margin-top: 1.8rem;
            margin-bottom: 0.5rem;
        }
        h4 {
            font-size: 1.1rem;
            margin-top: 1.2rem;
            margin-bottom: 0.3rem;
        }
        p {
            margin-bottom: 1rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(135deg, #1a0e0b 0%, #3b201a 100%);
            color: #f5ede6;
            padding: 0.8rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(to right, #f5d6b3, #e6b88a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo i {
            -webkit-text-fill-color: #e6b88a;
            font-size: 1.4rem;
        }
        .my-logo a {
            color: inherit;
            -webkit-text-fill-color: inherit;
            background: none;
            text-decoration: none;
        }
        .my-logo a:hover {
            text-decoration: none;
            opacity: 0.9;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.2rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #f0ded5;
            padding: 0.4rem 0.8rem;
            border-radius: 6px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: background 0.25s, color 0.25s;
            white-space: nowrap;
        }
        .main-nav a:hover {
            background: rgba(255, 215, 180, 0.15);
            color: #f5d6b3;
            text-decoration: none;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #e6b88a;
            color: #e6b88a;
            font-size: 1.4rem;
            padding: 0.3rem 0.7rem;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(230, 184, 138, 0.15);
        }
        .breadcrumb {
            background: #ede5db;
            padding: 0.5rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #d9cdc0;
        }
        .breadcrumb ul {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            gap: 0.3rem 0.6rem;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.5rem;
            color: #8a7a6e;
        }
        .breadcrumb a {
            color: #6d2e1f;
        }
        .breadcrumb .current {
            color: #4a3b33;
            font-weight: 600;
        }
        .main-content {
            flex: 1;
            padding: 2rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        @media (max-width: 900px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-body {
            background: #fffaf6;
            padding: 2rem 2.2rem;
            border-radius: 20px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
        }
        .article-body .update-date {
            font-size: 0.85rem;
            color: #7a6a5e;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            margin-bottom: 1.2rem;
            border-left: 4px solid #d4a373;
            padding-left: 1rem;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 1.8rem;
        }
        .sidebar-card {
            background: #fffaf6;
            padding: 1.5rem;
            border-radius: 16px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            margin-top: 0;
            border-bottom: 2px solid #e6d5c8;
            padding-bottom: 0.4rem;
            margin-bottom: 0.8rem;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card li {
            margin-bottom: 0.5rem;
        }
        .sidebar-card li a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.92rem;
            padding: 0.3rem 0;
        }
        .sidebar-card li a i {
            width: 1.2rem;
            color: #b4533a;
        }
        .featured-image {
            margin: 1.8rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
            background: #e8ddd2;
        }
        .featured-image img {
            width: 100%;
            min-height: 200px;
            object-fit: cover;
            background: #d4c0b2;
        }
        .featured-image figcaption {
            padding: 0.6rem 1rem;
            font-size: 0.85rem;
            color: #5a4a3e;
            background: #f5ede6;
            font-style: italic;
        }
        .search-box {
            display: flex;
            gap: 0.5rem;
            margin: 1.5rem 0;
            background: #f5ede6;
            padding: 0.3rem;
            border-radius: 40px;
            border: 2px solid #d9cdc0;
            transition: 0.2s;
        }
        .search-box:focus-within {
            border-color: #b4533a;
            box-shadow: 0 0 0 4px rgba(180, 83, 58, 0.1);
        }
        .search-box input {
            flex: 1;
            border: none;
            background: transparent;
            padding: 0.7rem 1.2rem;
            font-size: 1rem;
            outline: none;
            color: #1e1a17;
            border-radius: 40px;
        }
        .search-box input::placeholder {
            color: #8a7a6e;
        }
        .search-box button {
            background: #6d2e1f;
            color: #fff;
            border: none;
            padding: 0.7rem 1.6rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .search-box button:hover {
            background: #8f3f2b;
            transform: scale(1.02);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin: 2.5rem 0 1.5rem;
        }
        @media (max-width: 600px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
        }
        .feedback-card {
            background: #f5ede6;
            padding: 1.5rem;
            border-radius: 16px;
            border: 1px solid #e0d3c8;
        }
        .feedback-card h3 {
            margin-top: 0;
            font-size: 1.15rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            border-bottom: 2px solid #d4a373;
            padding-bottom: 0.4rem;
            margin-bottom: 1rem;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .feedback-card input,
        .feedback-card textarea {
            padding: 0.7rem 1rem;
            border: 2px solid #d9cdc0;
            border-radius: 10px;
            font-size: 0.95rem;
            font-family: inherit;
            background: #fff;
            transition: 0.2s;
            outline: none;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus {
            border-color: #b4533a;
            box-shadow: 0 0 0 3px rgba(180, 83, 58, 0.08);
        }
        .feedback-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .feedback-card button {
            background: #6d2e1f;
            color: #fff;
            border: none;
            padding: 0.7rem 1.2rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            font-size: 0.95rem;
            align-self: flex-start;
        }
        .feedback-card button:hover {
            background: #8f3f2b;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #ccc;
            cursor: pointer;
            transition: 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #e6a817;
        }
        .site-footer {
            background: #1a0e0b;
            color: #d9cdc0;
            padding: 2.5rem 0 1.5rem;
            margin-top: 2rem;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        @media (max-width: 700px) {
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
        }
        .footer-inner h4 {
            color: #e6b88a;
            margin-top: 0;
            font-size: 1.05rem;
            border-bottom: 2px solid #3b201a;
            padding-bottom: 0.3rem;
            margin-bottom: 0.8rem;
        }
        .footer-inner a {
            color: #cbb5a8;
        }
        .footer-inner a:hover {
            color: #f5d6b3;
        }
        .footer-inner ul {
            list-style: none;
            padding: 0;
        }
        .footer-inner li {
            margin-bottom: 0.3rem;
        }
        friend-link {
            display: block;
            padding: 0.5rem 0;
        }
        friend-link a {
            display: inline-block;
            padding: 0.2rem 0.6rem;
            margin: 0.2rem 0.2rem 0.2rem 0;
            border: 1px solid #4a3b33;
            border-radius: 6px;
            font-size: 0.88rem;
        }
        friend-link a:hover {
            border-color: #e6b88a;
        }
        .copyright {
            border-top: 1px solid #3b201a;
            margin-top: 1.5rem;
            padding-top: 1.2rem;
            text-align: center;
            font-size: 0.85rem;
            color: #8a7a6e;
        }
        .copyright strong {
            color: #cbb5a8;
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding-top: 0.8rem;
                gap: 0.2rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.6rem 1rem;
                border-radius: 8px;
                background: rgba(255, 255, 255, 0.04);
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .article-body {
                padding: 1.2rem 1rem;
            }
            .header-inner {
                gap: 0.3rem;
            }
            .my-logo {
                font-size: 1.3rem;
            }
        }
        @media (min-width: 769px) {
            .main-nav {
                display: flex !important;
            }
        }
        .highlight-box {
            background: #f0e6dc;
            border-left: 6px solid #d4a373;
            padding: 1.2rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
        }
        .highlight-box strong {
            color: #6d2e1f;
        }
        .two-col-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0.5rem 1.5rem;
        }
        @media (max-width: 500px) {
            .two-col-list {
                grid-template-columns: 1fr;
            }
        }
        .emoji-big {
            font-size: 1.3rem;
        }
        .btn-link {
            display: inline-block;
            background: #6d2e1f;
            color: #fff !important;
            padding: 0.4rem 1.2rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: 0.2s;
        }
        .btn-link:hover {
            background: #8f3f2b;
            transform: translateY(-2px);
            text-decoration: none;
            box-shadow: 0 6px 16px rgba(109, 46, 31, 0.25);
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.2rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 0.7rem 0.8rem;
            text-align: left;
            border-bottom: 1px solid #e0d3c8;
        }
        th {
            background: #ede5db;
            font-weight: 700;
            color: #2d1f1a;
        }
        tr:hover td {
            background: #f8f2ec;
        }
        .schema-hidden {
            display: none;
        }