*,
        *::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: #f5f7fc;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #d63384;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus {
            color: #a61e6b;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.75rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            margin-top: 0;
            color: #0b0b1a;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0b0b1a 0%, #1a1a3e 100%);
            color: #fff;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, #f7971e, #ffd200);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            -webkit-text-fill-color: #ffd200;
            font-size: 2rem;
        }
        .my-logo:hover {
            opacity: 0.9;
            text-decoration: none;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 1.25rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #f0f0f0;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.4rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s, color 0.2s;
        }
        .main-nav a:hover,
        .main-nav a:focus {
            background: rgba(255, 255, 255, 0.12);
            color: #ffd200;
            text-decoration: none;
        }
        .main-nav a i {
            margin-right: 6px;
        }
        .hamburger {
            display: none;
            background: none;
            border: 2px solid #ffd200;
            color: #ffd200;
            font-size: 1.6rem;
            padding: 0.25rem 0.75rem;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 210, 0, 0.15);
        }
        .breadcrumb {
            background: #fff;
            padding: 0.75rem 0;
            border-bottom: 1px solid #e9ecef;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #999;
        }
        .breadcrumb a {
            color: #d63384;
        }
        .breadcrumb .current {
            color: #666;
            font-weight: 500;
        }
        .main-content {
            padding: 2.5rem 0 3rem;
        }
        .article-title {
            font-size: 2.6rem;
            margin-bottom: 0.25rem;
            background: linear-gradient(135deg, #0b0b1a, #d63384);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .subhead {
            font-size: 1.1rem;
            color: #555;
            margin-bottom: 2rem;
            border-left: 4px solid #d63384;
            padding-left: 1rem;
        }
        .last-updated {
            font-size: 0.9rem;
            color: #888;
            margin-bottom: 2rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .last-updated i {
            color: #d63384;
        }
        .section-title {
            font-size: 2rem;
            margin: 2.8rem 0 1.2rem;
            border-bottom: 3px solid #ffd200;
            padding-bottom: 0.5rem;
            display: inline-block;
        }
        .subsection-title {
            font-size: 1.5rem;
            margin: 2rem 0 0.8rem;
            color: #1a1a3e;
        }
        .sub-subsection-title {
            font-size: 1.2rem;
            margin: 1.5rem 0 0.5rem;
            color: #2d2d5e;
            font-weight: 600;
        }
        p {
            margin-bottom: 1.2rem;
            color: #2c2c3a;
        }
        .highlight {
            background: linear-gradient(to right, #fff3cd, #ffe69c);
            padding: 0.1rem 0.4rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .emoji-big {
            font-size: 1.8rem;
            margin-right: 0.5rem;
        }
        .inline-icon {
            margin-right: 6px;
            color: #d63384;
        }
        .featured-image {
            margin: 2rem 0;
            border-radius: 16px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
            overflow: hidden;
        }
        .featured-image img {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
        }
        .featured-image figcaption {
            background: #fff;
            padding: 0.75rem 1.2rem;
            font-size: 0.9rem;
            color: #666;
            border-top: 1px solid #eee;
        }
        .youtuber-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.8rem;
            margin: 2rem 0;
        }
        .youtuber-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.5rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            transition: transform 0.2s, box-shadow 0.2s;
            border: 1px solid #f0f0f5;
        }
        .youtuber-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.10);
        }
        .youtuber-card h3 {
            font-size: 1.3rem;
            margin-bottom: 0.3rem;
        }
        .youtuber-card .sub {
            color: #d63384;
            font-weight: 600;
            font-size: 0.9rem;
        }
        .youtuber-card p {
            font-size: 0.95rem;
            color: #444;
        }
        .related-links {
            background: #fff;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin: 2.5rem 0;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
            border-left: 5px solid #d63384;
        }
        .related-links h3 {
            margin-bottom: 1rem;
        }
        .related-links ul {
            list-style: none;
            padding: 0;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 0.6rem 1.2rem;
        }
        .related-links li::before {
            content: "🔥 ";
            font-size: 0.9rem;
        }
        .related-links a {
            font-weight: 500;
        }
        .form-section {
            background: #fff;
            border-radius: 20px;
            padding: 2rem 2.2rem;
            margin: 2.5rem 0;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.05);
            border: 1px solid #eee;
        }
        .form-section h3 {
            font-size: 1.6rem;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .form-group {
            margin-bottom: 1.3rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.3rem;
            color: #1a1a3e;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 2px solid #e0e0ec;
            border-radius: 10px;
            font-size: 1rem;
            transition: border-color 0.2s;
            background: #fafafe;
            font-family: inherit;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #d63384;
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        .btn {
            background: linear-gradient(135deg, #d63384, #a61e6b);
            color: #fff;
            border: none;
            padding: 0.8rem 2.2rem;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(214, 51, 132, 0.35);
        }
        .btn i {
            font-size: 1.1rem;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            gap: 4px;
            font-size: 2rem;
            justify-content: flex-end;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            color: #ddd;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5b342;
        }
        .site-footer {
            background: #0b0b1a;
            color: #ccc;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
        }
        .site-footer h4 {
            color: #ffd200;
            margin-bottom: 0.8rem;
            font-size: 1.1rem;
        }
        .site-footer a {
            color: #bbb;
        }
        .site-footer a:hover {
            color: #ffd200;
        }
        .friend-link {
            display: block;
            padding: 0.4rem 0;
            font-size: 0.95rem;
        }
        .friend-link::before {
            content: "🤝 ";
        }
        .copyright {
            border-top: 1px solid #2a2a4a;
            margin-top: 2rem;
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.9rem;
            color: #888;
        }
        @media (max-width: 900px) {
            .article-title {
                font-size: 2rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0b0b1a;
                padding: 1rem 0 0.5rem;
                border-top: 1px solid #2a2a4a;
                margin-top: 0.8rem;
                gap: 0.4rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.6rem 1rem;
                border-radius: 0;
                width: 100%;
            }
            .youtuber-grid {
                grid-template-columns: 1fr;
            }
            .related-links ul {
                grid-template-columns: 1fr;
            }
            .form-section {
                padding: 1.5rem;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                text-align: center;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            .article-title {
                font-size: 1.6rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .subsection-title {
                font-size: 1.2rem;
            }
            .sub-subsection-title {
                font-size: 1rem;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .breadcrumb ol {
                font-size: 0.8rem;
                gap: 0.2rem 0.4rem;
            }
        }
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .gap-2 {
            gap: 2rem;
        }
        .badge {
            background: #d63384;
            color: #fff;
            padding: 0.2rem 0.8rem;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }