*,
        *::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, Arial, sans-serif;
            background: #0f0f1a;
            color: #e8e8f0;
            line-height: 1.75;
            padding: 0 16px;
            max-width: 1200px;
            margin: 0 auto;
        }
        a {
            color: #facc15;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus {
            color: #ffdd44;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: #f5f5ff;
            margin-top: 2rem;
            margin-bottom: 0.75rem;
        }
        h1 {
            font-size: 2.4rem;
            border-left: 6px solid #facc15;
            padding-left: 20px;
            margin-top: 1.2rem;
        }
        h2 {
            font-size: 1.8rem;
            border-bottom: 2px solid #2a2a40;
            padding-bottom: 0.4rem;
        }
        h3 {
            font-size: 1.35rem;
            color: #ddddf5;
        }
        h4 {
            font-size: 1.1rem;
            color: #cccce0;
        }
        p {
            margin-bottom: 1.2rem;
        }
        ul,
        ol {
            margin: 0.8rem 0 1.5rem 1.8rem;
        }
        li {
            margin-bottom: 0.3rem;
        }
        strong,
        b {
            color: #fff;
            font-weight: 700;
        }
        .container {
            width: 100%;
            padding: 0 4px;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0 8px;
            border-bottom: 1px solid #2a2a40;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: 1px;
            background: linear-gradient(135deg, #facc15, #f97316);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none !important;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none !important;
        }
        .my-logo small {
            font-size: 0.7rem;
            display: block;
            -webkit-text-fill-color: #aaa;
            color: #aaa;
            letter-spacing: 0.3px;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 6px 18px;
            flex-wrap: wrap;
            margin: 0;
            padding: 0;
        }
        .nav-list li a {
            font-size: 0.95rem;
            padding: 6px 10px;
            border-radius: 40px;
            transition: background 0.2s, color 0.2s;
            color: #ccc;
        }
        .nav-list li a:hover {
            background: #2a2a40;
            color: #facc15;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: 2px solid #facc15;
            color: #facc15;
            font-size: 1.6rem;
            padding: 4px 12px;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #2a2a40;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 12px 0 8px;
            margin: 0;
            font-size: 0.9rem;
            color: #888;
            gap: 4px 10px;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #555;
        }
        .breadcrumb a {
            color: #aaa;
        }
        .breadcrumb a:hover {
            color: #facc15;
        }
        .breadcrumb .active {
            color: #facc15;
        }
        .search-block {
            background: #1a1a2e;
            border-radius: 40px;
            padding: 4px 4px 4px 20px;
            display: flex;
            align-items: center;
            max-width: 340px;
            margin: 20px 0 24px;
            border: 1px solid #333;
            transition: border 0.2s;
        }
        .search-block:focus-within {
            border-color: #facc15;
        }
        .search-block input {
            background: transparent;
            border: none;
            padding: 10px 0;
            font-size: 1rem;
            color: #fff;
            width: 100%;
            outline: none;
        }
        .search-block input::placeholder {
            color: #777;
        }
        .search-block button {
            background: #facc15;
            border: none;
            border-radius: 40px;
            padding: 8px 18px;
            font-size: 1rem;
            font-weight: 600;
            color: #0f0f1a;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .search-block button:hover {
            background: #ffdd44;
            transform: scale(1.02);
        }
        .feature-card {
            background: #1a1a2e;
            border-radius: 16px;
            padding: 24px 20px;
            margin: 20px 0;
            border-left: 4px solid #facc15;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 16px;
            margin: 24px 0;
        }
        .stat-item {
            background: #12122a;
            border-radius: 12px;
            padding: 18px 12px;
            text-align: center;
            border: 1px solid #2a2a40;
            transition: transform 0.2s;
        }
        .stat-item:hover {
            transform: translateY(-4px);
            border-color: #facc15;
        }
        .stat-item .num {
            font-size: 2rem;
            font-weight: 800;
            color: #facc15;
            display: block;
        }
        .stat-item .label {
            font-size: 0.85rem;
            color: #aaa;
            margin-top: 4px;
        }
        .form-block {
            background: #1a1a2e;
            border-radius: 16px;
            padding: 24px 20px;
            margin: 24px 0;
            border: 1px solid #2a2a40;
        }
        .form-block form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .form-block input,
        .form-block textarea,
        .form-block select {
            background: #0f0f1a;
            border: 1px solid #333;
            border-radius: 10px;
            padding: 12px 16px;
            font-size: 1rem;
            color: #fff;
            transition: border 0.2s;
            width: 100%;
        }
        .form-block input:focus,
        .form-block textarea:focus,
        .form-block select:focus {
            border-color: #facc15;
            outline: none;
        }
        .form-block textarea {
            min-height: 100px;
            resize: vertical;
        }
        .form-block button {
            background: #facc15;
            border: none;
            border-radius: 40px;
            padding: 12px 28px;
            font-size: 1.05rem;
            font-weight: 700;
            color: #0f0f1a;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            align-self: flex-start;
        }
        .form-block button:hover {
            background: #ffdd44;
            transform: scale(1.02);
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #444;
            cursor: pointer;
            direction: rtl;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            transition: color 0.15s;
            color: #444;
            font-size: 2rem;
        }
        .rating-stars label:hover,
        .rating-stars label:hover~label,
        .rating-stars input:checked~label {
            color: #facc15;
        }
        .site-footer {
            border-top: 1px solid #2a2a40;
            padding: 32px 0 24px;
            margin-top: 48px;
            text-align: center;
        }
        .site-footer friend-link {
            display: block;
            margin: 12px 0 20px;
            font-size: 0.95rem;
        }
        .site-footer friend-link a {
            margin: 0 8px;
            color: #aaa;
        }
        .site-footer friend-link a:hover {
            color: #facc15;
        }
        .site-footer .copyright {
            font-size: 0.85rem;
            color: #666;
            border-top: 1px solid #222;
            padding-top: 20px;
            margin-top: 12px;
        }
        @media (max-width: 768px) {
            body {
                padding: 0 10px;
            }
            h1 {
                font-size: 1.7rem;
                padding-left: 14px;
            }
            h2 {
                font-size: 1.35rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .site-header {
                flex-wrap: wrap;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #1a1a2e;
                padding: 16px 12px;
                border-radius: 16px;
                margin-top: 12px;
                gap: 6px;
                border: 1px solid #2a2a40;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                display: block;
                padding: 10px 12px;
            }
            .hamburger {
                display: inline-block;
            }
            .search-block {
                max-width: 100%;
                margin: 16px 0;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
            .form-block button {
                width: 100%;
                text-align: center;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.4rem;
            }
            .stat-item .num {
                font-size: 1.5rem;
            }
            .rating-stars label {
                font-size: 1.6rem;
            }
        }
        .last-updated {
            font-size: 0.85rem;
            color: #888;
            margin-top: 8px;
            display: block;
            text-align: right;
        }
        .emoji-big {
            font-size: 1.4em;
            line-height: 1;
        }
        .highlight-box {
            background: #22223a;
            border-radius: 12px;
            padding: 20px 22px;
            margin: 20px 0;
            border: 1px solid #3a3a55;
        }
        .toc {
            background: #12122a;
            border-radius: 14px;
            padding: 20px 24px;
            margin: 24px 0;
            border: 1px solid #2a2a40;
        }
        .toc ol {
            margin: 8px 0 0 1.2rem;
        }
        .toc a {
            color: #ccc;
        }
        .toc a:hover {
            color: #facc15;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #facc15;
            color: #0f0f1a;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            box-shadow: 0 4px 16px rgba(250, 204, 21, 0.3);
            transition: transform 0.2s, background 0.2s;
            z-index: 99;
            border: none;
            cursor: pointer;
        }
        .back-to-top:hover {
            transform: translateY(-4px);
            background: #ffdd44;
        }
        @media (max-width: 600px) {
            .back-to-top {
                bottom: 16px;
                right: 16px;
                width: 40px;
                height: 40px;
                font-size: 1.2rem;
            }
        }
        friend-link {
            display: block;
        }
        friend-link a {
            margin: 0 6px;
        }