* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #0d0d1a;
            color: #f0e6d3;
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: #f0a500;
            text-decoration: none;
            transition: color 0.3s;
        }
        a:hover {
            color: #ffd966;
            text-decoration: underline;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
            padding: 16px 0;
            border-bottom: 2px solid #f0a500;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(240, 165, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 28px;
            font-weight: 800;
            color: #f0a500;
            text-transform: uppercase;
            letter-spacing: 2px;
            text-shadow: 0 0 20px rgba(240, 165, 0, 0.3);
            transition: transform 0.3s;
        }
        .my-logo:hover {
            transform: scale(1.03);
            text-decoration: none;
            color: #ffd966;
        }
        .my-logo i {
            margin-right: 8px;
            color: #e6b800;
        }
        .hamburger {
            display: none;
            background: none;
            border: 2px solid #f0a500;
            color: #f0a500;
            font-size: 24px;
            padding: 8px 14px;
            border-radius: 6px;
            cursor: pointer;
            transition: background 0.3s;
        }
        .hamburger:hover {
            background: rgba(240, 165, 0, 0.15);
        }
        nav {
            display: flex;
            gap: 24px;
            align-items: center;
            flex-wrap: wrap;
        }
        nav a {
            color: #f0e6d3;
            font-weight: 500;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.3s, color 0.3s;
        }
        nav a:hover {
            border-bottom-color: #f0a500;
            color: #f0a500;
            text-decoration: none;
        }
        .breadcrumb {
            padding: 12px 0 6px;
            font-size: 14px;
            color: #a8a8b3;
        }
        .breadcrumb a {
            color: #c0b6a8;
        }
        .breadcrumb a:hover {
            color: #f0a500;
        }
        .breadcrumb span {
            color: #f0a500;
        }
        main {
            padding: 30px 0 60px;
        }
        h1 {
            font-size: 42px;
            font-weight: 800;
            color: #f0a500;
            margin-bottom: 16px;
            line-height: 1.2;
            text-shadow: 0 2px 10px rgba(240, 165, 0, 0.2);
        }
        h2 {
            font-size: 30px;
            font-weight: 700;
            color: #e6c200;
            margin-top: 48px;
            margin-bottom: 18px;
            border-left: 5px solid #f0a500;
            padding-left: 18px;
        }
        h3 {
            font-size: 24px;
            font-weight: 600;
            color: #f0d68a;
            margin-top: 32px;
            margin-bottom: 14px;
        }
        h4 {
            font-size: 20px;
            font-weight: 600;
            color: #d4b87a;
            margin-top: 24px;
            margin-bottom: 10px;
        }
        p {
            margin-bottom: 18px;
            font-size: 17px;
            color: #e6ddd0;
        }
        .highlight {
            background: linear-gradient(120deg, rgba(240, 165, 0, 0.12), rgba(240, 165, 0, 0.04));
            padding: 4px 12px;
            border-radius: 4px;
            font-weight: 600;
            color: #f0c040;
        }
        .feature-img {
            width: 100%;
            max-width: 900px;
            border-radius: 16px;
            margin: 30px 0;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.6);
            border: 1px solid rgba(240, 165, 0, 0.2);
            transition: transform 0.4s, box-shadow 0.4s;
        }
        .feature-img:hover {
            transform: scale(1.005);
            box-shadow: 0 12px 50px rgba(240, 165, 0, 0.15);
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
            margin: 28px 0;
        }
        .card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(240, 165, 0, 0.15);
            border-radius: 14px;
            padding: 24px 20px;
            transition: transform 0.3s, background 0.3s, box-shadow 0.3s;
            backdrop-filter: blur(4px);
        }
        .card:hover {
            transform: translateY(-6px);
            background: rgba(240, 165, 0, 0.08);
            box-shadow: 0 12px 30px rgba(240, 165, 0, 0.08);
        }
        .card i {
            font-size: 32px;
            color: #f0a500;
            margin-bottom: 12px;
        }
        .card h4 {
            margin-top: 0;
            color: #f0d68a;
        }
        .card p {
            font-size: 15px;
            color: #d0c8b8;
        }
        .search-section {
            background: rgba(240, 165, 0, 0.05);
            border: 1px solid rgba(240, 165, 0, 0.2);
            border-radius: 16px;
            padding: 32px 28px;
            margin: 40px 0;
        }
        .search-section h3 {
            margin-top: 0;
        }
        .search-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 14px;
        }
        .search-form input {
            flex: 1;
            min-width: 200px;
            padding: 14px 20px;
            border-radius: 8px;
            border: 1px solid rgba(240, 165, 0, 0.3);
            background: rgba(255, 255, 255, 0.06);
            color: #f0e6d3;
            font-size: 16px;
            outline: none;
            transition: border-color 0.3s;
        }
        .search-form input:focus {
            border-color: #f0a500;
        }
        .search-form button {
            padding: 14px 32px;
            background: #f0a500;
            border: none;
            border-radius: 8px;
            color: #1a1a2e;
            font-weight: 700;
            font-size: 16px;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
        }
        .search-form button:hover {
            background: #ffc34d;
            transform: scale(1.02);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 40px 0;
        }
        @media (max-width: 768px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
        }
        .feedback-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(240, 165, 0, 0.12);
            border-radius: 16px;
            padding: 28px 24px;
        }
        .feedback-card h3 {
            margin-top: 0;
            font-size: 22px;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 12px;
        }
        .feedback-card textarea,
        .feedback-card input {
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid rgba(240, 165, 0, 0.2);
            background: rgba(255, 255, 255, 0.05);
            color: #f0e6d3;
            font-size: 15px;
            outline: none;
            font-family: inherit;
            transition: border-color 0.3s;
        }
        .feedback-card textarea:focus,
        .feedback-card input:focus {
            border-color: #f0a500;
        }
        .feedback-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .feedback-card button {
            padding: 12px 24px;
            background: #f0a500;
            border: none;
            border-radius: 8px;
            color: #1a1a2e;
            font-weight: 700;
            font-size: 16px;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
            align-self: flex-start;
        }
        .feedback-card button:hover {
            background: #ffc34d;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            gap: 6px;
            justify-content: flex-end;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 28px;
            color: #555;
            cursor: pointer;
            transition: color 0.3s, transform 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f0a500;
            transform: scale(1.1);
        }
        footer {
            background: linear-gradient(135deg, #0d0d1a, #16213e);
            border-top: 2px solid rgba(240, 165, 0, 0.2);
            padding: 40px 0 20px;
            margin-top: 40px;
        }
        .footer-inner {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        friend-link {
            display: flex;
            flex-wrap: wrap;
            gap: 20px 32px;
            padding: 16px 20px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 12px;
            border: 1px solid rgba(240, 165, 0, 0.08);
        }
        friend-link a {
            color: #c0b6a8;
            font-weight: 500;
            transition: color 0.3s;
        }
        friend-link a:hover {
            color: #f0a500;
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            color: #7a7a8a;
            font-size: 14px;
            padding-top: 12px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        .copyright strong {
            color: #b0a898;
        }
        .last-updated {
            text-align: right;
            font-size: 14px;
            color: #8a8a9a;
            margin-top: 8px;
            font-style: italic;
        }
        .last-updated i {
            color: #f0a500;
            margin-right: 6px;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 12px;
                padding: 16px 0 8px;
                border-top: 1px solid rgba(240, 165, 0, 0.1);
                margin-top: 12px;
            }
            nav.active {
                display: flex;
            }
            h1 {
                font-size: 30px;
            }
            h2 {
                font-size: 24px;
            }
            h3 {
                font-size: 20px;
            }
            .container {
                padding: 0 14px;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form input {
                min-width: auto;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 26px;
            }
            .my-logo {
                font-size: 22px;
            }
            .card {
                padding: 18px 14px;
            }
        }
        html {
            scroll-behavior: smooth;
        }
        .blockquote {
            border-left: 4px solid #f0a500;
            padding: 16px 24px;
            margin: 24px 0;
            background: rgba(240, 165, 0, 0.04);
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #d4c8b8;
        }
        .blockquote strong {
            color: #f0c040;
        }
        ul,
        ol {
            margin: 16px 0 20px 24px;
            color: #e6ddd0;
        }
        li {
            margin-bottom: 8px;
        }
        .toc {
            background: rgba(240, 165, 0, 0.04);
            border: 1px solid rgba(240, 165, 0, 0.15);
            border-radius: 14px;
            padding: 24px 28px;
            margin: 28px 0;
        }
        .toc h3 {
            margin-top: 0;
        }
        .toc ul {
            list-style: none;
            margin: 12px 0 0 0;
        }
        .toc ul li {
            padding: 4px 0;
        }
        .toc ul li a {
            color: #c0b6a8;
        }
        .toc ul li a:hover {
            color: #f0a500;
        }
        .toc ul ul {
            margin-left: 24px;
        }
        .to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #f0a500;
            color: #1a1a2e;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 20px rgba(240, 165, 0, 0.3);
            transition: transform 0.3s, background 0.3s;
            z-index: 999;
        }
        .to-top:hover {
            transform: scale(1.1);
            background: #ffc34d;
        }
        @media (max-width: 600px) {
            .to-top {
                bottom: 16px;
                right: 16px;
                width: 40px;
                height: 40px;
                font-size: 18px;
            }
        }
        .term {
            font-weight: 600;
            color: #f0c040;
        }