*,
        *::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, sans-serif;
            line-height: 1.8;
            color: #1e293b;
            background: #f8fafc;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
            min-height: 100vh;
        }
        a {
            color: #2563eb;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #1d4ed8;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.8rem;
            margin: 1rem 0;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            margin: 1.2rem 0 1rem;
            color: #0f172a;
            letter-spacing: -0.01em;
        }
        h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin: 2.5rem 0 1rem;
            color: #0f172a;
            border-bottom: 3px solid #f59e0b;
            padding-bottom: 0.4rem;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin: 2rem 0 0.8rem;
            color: #1e293b;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin: 1.5rem 0 0.6rem;
            color: #334155;
        }
        p {
            margin: 0 0 1.2rem;
            color: #334155;
            font-size: 1.05rem;
        }
        .text-muted {
            color: #64748b;
            font-size: 0.95rem;
        }
        .text-small {
            font-size: 0.9rem;
        }
        header {
            padding: 1rem 0 0.5rem;
            border-bottom: 1px solid #e2e8f0;
            background: #ffffff;
            position: relative;
            z-index: 100;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 900;
            background: linear-gradient(135deg, #f59e0b, #d97706);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: inline-block;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.9rem;
            font-weight: 400;
            background: none;
            -webkit-text-fill-color: #64748b;
            color: #64748b;
            display: block;
            letter-spacing: 0.3px;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #0f172a;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #f1f5f9;
        }
        .main-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 0.2rem;
            align-items: center;
        }
        .main-nav a {
            padding: 0.5rem 1rem;
            font-weight: 500;
            color: #1e293b;
            border-radius: 8px;
            transition: background 0.2s, color 0.2s;
            font-size: 0.95rem;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: #f59e0b;
            color: #0f172a;
            text-decoration: none;
        }
        .breadcrumb {
            padding: 0.8rem 0 0.4rem;
            font-size: 0.9rem;
            color: #64748b;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem;
        }
        .breadcrumb a {
            color: #2563eb;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            color: #94a3b8;
        }
        .search-wrap {
            display: flex;
            gap: 0.5rem;
            max-width: 480px;
            margin: 1.2rem 0 0.8rem;
            width: 100%;
        }
        .search-wrap input {
            flex: 1;
            padding: 0.7rem 1rem;
            border: 2px solid #e2e8f0;
            border-radius: 10px;
            font-size: 1rem;
            outline: none;
            transition: border 0.2s;
            background: #fff;
        }
        .search-wrap input:focus {
            border-color: #f59e0b;
        }
        .search-wrap button {
            padding: 0.7rem 1.4rem;
            background: #f59e0b;
            border: none;
            border-radius: 10px;
            color: #0f172a;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            font-size: 1rem;
        }
        .search-wrap button:hover {
            background: #d97706;
            transform: scale(1.02);
        }
        main {
            padding: 1.5rem 0 3rem;
        }
        .featured-image {
            margin: 1.5rem 0 2rem;
            border-radius: 16px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
            background: #fff;
            padding: 8px;
        }
        .featured-image figcaption {
            text-align: center;
            font-size: 0.9rem;
            color: #64748b;
            padding: 0.6rem 0 0.2rem;
        }
        .last-updated {
            display: inline-block;
            background: #f1f5f9;
            padding: 0.3rem 1rem;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #475569;
            margin-bottom: 1rem;
        }
        .highlight {
            background: linear-gradient(to right, #fef3c7, #fde68a);
            padding: 0.1rem 0.4rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .emoji-lg {
            font-size: 1.4rem;
            margin-right: 0.3rem;
        }
        .info-box {
            background: #eff6ff;
            border-left: 5px solid #3b82f6;
            padding: 1.2rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
        }
        .tip-box {
            background: #f0fdf4;
            border-left: 5px solid #22c55e;
            padding: 1.2rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.95rem;
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        .data-table th {
            background: #f59e0b;
            color: #0f172a;
            font-weight: 600;
            padding: 0.8rem 1rem;
            text-align: left;
        }
        .data-table td {
            padding: 0.7rem 1rem;
            border-bottom: 1px solid #f1f5f9;
        }
        .data-table tr:last-child td {
            border-bottom: none;
        }
        .data-table tr:hover td {
            background: #fefce8;
        }
        .feedback-section {
            margin-top: 3.5rem;
            padding-top: 2rem;
            border-top: 2px solid #e2e8f0;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 1.5rem 0;
        }
        @media (max-width: 700px) {
            .feedback-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
        }
        .feedback-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.8rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #f1f5f9;
        }
        .feedback-card h3 {
            margin-top: 0;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 0.8rem;
        }
        .feedback-card input,
        .feedback-card textarea {
            padding: 0.7rem 1rem;
            border: 2px solid #e2e8f0;
            border-radius: 10px;
            font-size: 0.95rem;
            font-family: inherit;
            outline: none;
            transition: border 0.2s;
            background: #f8fafc;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus {
            border-color: #f59e0b;
            background: #fff;
        }
        .feedback-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .feedback-card button {
            padding: 0.7rem 1.5rem;
            background: #f59e0b;
            border: none;
            border-radius: 10px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            color: #0f172a;
            align-self: flex-start;
        }
        .feedback-card button:hover {
            background: #d97706;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            color: #cbd5e1;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            transition: color 0.2s, transform 0.1s;
            cursor: pointer;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f59e0b;
            transform: scale(1.05);
        }
        friend-link {
            display: block;
            padding: 1.5rem 0;
            border-top: 1px solid #e2e8f0;
            margin-top: 2rem;
        }
        friend-link h3 {
            font-size: 1.2rem;
            margin-bottom: 1rem;
            color: #0f172a;
        }
        .friend-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 1.5rem;
            list-style: none;
            padding: 0;
        }
        .friend-list li a {
            color: #2563eb;
            font-weight: 500;
            font-size: 0.95rem;
        }
        .friend-list li a:hover {
            color: #1d4ed8;
            text-decoration: underline;
        }
        footer {
            padding: 2rem 0 1.5rem;
            border-top: 1px solid #e2e8f0;
            text-align: center;
            color: #64748b;
            font-size: 0.9rem;
        }
        footer .copyright {
            margin-top: 0.8rem;
            font-size: 0.85rem;
        }
        @media (max-width: 768px) {
            body {
                padding: 0 16px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #fff;
                padding: 0.8rem 0;
                border-radius: 12px;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
                margin-top: 0.5rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.6rem 1rem;
                border-radius: 6px;
                width: 100%;
            }
            .header-top {
                flex-wrap: nowrap;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .search-wrap {
                max-width: 100%;
            }
            .data-table {
                font-size: 0.85rem;
            }
            .data-table th,
            .data-table td {
                padding: 0.5rem 0.6rem;
            }
            .feedback-card {
                padding: 1.2rem;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.5rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            h3 {
                font-size: 1.1rem;
            }
            p {
                font-size: 0.98rem;
            }
            .main-nav a {
                font-size: 0.9rem;
                padding: 0.5rem 0.8rem;
            }
            .friend-list {
                gap: 0.5rem 1rem;
            }
        }
        @media (min-width: 769px) {
            .main-nav {
                display: flex !important;
            }
            .hamburger {
                display: none !important;
            }
        }
        @media print {
            .search-wrap,
            .feedback-section,
            .hamburger,
            .main-nav {
                display: none !important;
            }
            body {
                font-size: 12pt;
                padding: 0;
            }
            a {
                color: #000 !important;
                text-decoration: underline !important;
            }
            img {
                max-width: 100% !important;
                page-break-inside: avoid;
            }
            h1,
            h2,
            h3,
            h4 {
                page-break-after: avoid;
            }
        }