*,
        *::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, sans-serif;
            background: #f5f7fa;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0 16px;
            max-width: 1280px;
            margin: 0 auto;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        a {
            color: #e65c00;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus {
            color: #b34700;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            color: #0d0d1a;
        }
        .container {
            background: #ffffff;
            border-radius: 24px;
            padding: 24px 20px;
            margin: 20px 0 40px;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
        }
        @media (min-width: 768px) {
            body {
                padding: 0 32px;
            }
            .container {
                padding: 40px 48px;
            }
        }
        @media (min-width: 1024px) {
            .container {
                padding: 56px 64px;
            }
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0 12px;
            border-bottom: 2px solid #f0f0f0;
            position: relative;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: #e65c00;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #e65c00, #ff8c00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.75rem;
            font-weight: 400;
            color: #555;
            -webkit-text-fill-color: #555;
            display: block;
            letter-spacing: 0.3px;
        }
        @media (min-width: 480px) {
            .my-logo {
                font-size: 2rem;
            }
            .my-logo small {
                font-size: 0.85rem;
            }
        }
        .nav-toggle {
            display: block;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #1a1a2e;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: #f0f0f0;
        }
        .nav-menu {
            display: none;
            width: 100%;
            flex-direction: column;
            gap: 6px;
            padding: 16px 0 8px;
            list-style: none;
        }
        .nav-menu.active {
            display: flex;
        }
        .nav-menu li a {
            display: block;
            padding: 10px 16px;
            border-radius: 10px;
            font-weight: 500;
            color: #1a1a2e;
            background: #f8f9fc;
            transition: background 0.2s, color 0.2s;
        }
        .nav-menu li a:hover {
            background: #e65c00;
            color: #fff;
            text-decoration: none;
        }
        @media (min-width: 768px) {
            .nav-toggle {
                display: none;
            }
            .nav-menu {
                display: flex !important;
                flex-direction: row;
                width: auto;
                gap: 4px;
                padding: 0;
            }
            .nav-menu li a {
                background: transparent;
                padding: 8px 16px;
            }
            .nav-menu li a:hover {
                background: #ffe6d5;
                color: #e65c00;
            }
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px 10px;
            padding: 12px 0 8px;
            font-size: 0.85rem;
            color: #666;
            list-style: none;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .breadcrumb li+li::before {
            content: "›";
            color: #ccc;
            font-size: 1.2rem;
            margin-right: 4px;
        }
        .breadcrumb a {
            color: #e65c00;
        }
        .breadcrumb .current {
            color: #444;
            font-weight: 500;
        }
        h1 {
            font-size: 1.9rem;
            margin: 0 0 12px;
            color: #0d0d1a;
        }
        h2 {
            font-size: 1.55rem;
            margin: 40px 0 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid #ffe0cc;
        }
        h3 {
            font-size: 1.25rem;
            margin: 28px 0 12px;
            color: #1f1f3a;
        }
        h4 {
            font-size: 1.05rem;
            margin: 20px 0 10px;
            color: #2d2d4a;
        }
        p {
            margin: 0 0 18px;
        }
        .update-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #f0f7ff;
            color: #0066cc;
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 20px;
        }
        .feature-img {
            margin: 24px 0 32px;
            border-radius: 16px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
        }
        .feature-img figcaption {
            font-size: 0.85rem;
            color: #666;
            text-align: center;
            margin-top: 8px;
        }
        .search-box {
            background: #f8f9fc;
            border-radius: 16px;
            padding: 24px 20px;
            margin: 32px 0;
            border: 1px solid #e8e8f0;
        }
        .search-box form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .search-box input[type="text"] {
            flex: 1;
            min-width: 180px;
            padding: 14px 18px;
            border: 2px solid #ddd;
            border-radius: 30px;
            font-size: 1rem;
            outline: none;
            transition: border 0.25s;
        }
        .search-box input[type="text"]:focus {
            border-color: #e65c00;
        }
        .search-box button {
            padding: 14px 28px;
            background: #e65c00;
            color: #fff;
            border: none;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
        }
        .search-box button:hover {
            background: #b34700;
            transform: scale(1.02);
        }
        .feedback-grid {
            display: grid;
            gap: 24px;
            margin: 32px 0;
            grid-template-columns: 1fr;
        }
        @media (min-width: 700px) {
            .feedback-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        .card {
            background: #f8f9fc;
            border-radius: 16px;
            padding: 24px 20px;
            border: 1px solid #e8e8f0;
        }
        .card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .card form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .card textarea,
        .card input[type="number"],
        .card input[type="text"] {
            padding: 12px 16px;
            border: 2px solid #ddd;
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: inherit;
            outline: none;
            transition: border 0.25s;
            resize: vertical;
        }
        .card textarea:focus,
        .card input:focus {
            border-color: #e65c00;
        }
        .card textarea {
            min-height: 100px;
        }
        .card .star-group {
            display: flex;
            gap: 6px;
            font-size: 1.6rem;
            color: #ffb300;
            cursor: pointer;
        }
        .card .star-group i {
            transition: transform 0.15s;
        }
        .card .star-group i:hover {
            transform: scale(1.2);
        }
        .card button {
            align-self: flex-start;
            padding: 12px 32px;
            background: #1a1a2e;
            color: #fff;
            border: none;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
        }
        .card button:hover {
            background: #e65c00;
            transform: scale(1.02);
        }
        friend-link {
            display: block;
            margin: 32px 0 16px;
            padding: 20px 0;
            border-top: 2px solid #f0f0f0;
            border-bottom: 2px solid #f0f0f0;
        }
        friend-link ul {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            list-style: none;
            padding: 0;
            margin: 12px 0 0;
        }
        friend-link ul li a {
            color: #1a1a2e;
            font-weight: 500;
            padding: 4px 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s, color 0.2s;
        }
        friend-link ul li a:hover {
            border-bottom-color: #e65c00;
            color: #e65c00;
            text-decoration: none;
        }
        .site-footer {
            padding: 24px 0 32px;
            text-align: center;
            color: #666;
            font-size: 0.9rem;
            border-top: 2px solid #f0f0f0;
            margin-top: 24px;
        }
        .site-footer .copyright {
            margin-top: 12px;
            font-size: 0.82rem;
            color: #999;
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.5rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            .container {
                padding: 16px 12px;
            }
            .search-box form {
                flex-direction: column;
            }
            .search-box button {
                width: 100%;
            }
        }
        .schema-hidden {
            display: none;
        }
        .emoji-big {
            font-size: 1.3em;
            margin-right: 4px;
        }
        .highlight {
            background: #fff3e6;
            padding: 2px 8px;
            border-radius: 6px;
            font-weight: 600;
        }
        .tip-box {
            background: #eaf7e9;
            border-left: 4px solid #2e7d32;
            padding: 16px 20px;
            border-radius: 0 12px 12px 0;
            margin: 20px 0;
        }
        .tip-box strong {
            color: #2e7d32;
        }
        .pro-box {
            background: #f0e6ff;
            border-left: 4px solid #7b1fa2;
            padding: 16px 20px;
            border-radius: 0 12px 12px 0;
            margin: 20px 0;
        }
        .pro-box strong {
            color: #7b1fa2;
        }