* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: #f5f7fa;
            color: #1a1a2e;
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: #0066cc;
            text-decoration: none;
            transition: color .2s;
        }
        a:hover {
            color: #004499;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
            color: #fff;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, .3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #ffd700;
            letter-spacing: 1px;
            text-shadow: 0 2px 8px rgba(255, 215, 0, .3);
            transition: transform .3s;
        }
        .my-logo:hover {
            transform: scale(1.03);
            color: #ffe44d;
            text-decoration: none;
        }
        .my-logo i {
            margin-right: 8px;
            color: #00e5ff;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #fff;
            cursor: pointer;
            padding: 4px 10px;
            border-radius: 6px;
            transition: background .2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, .1);
        }
        nav {
            display: flex;
            gap: 6px 18px;
            flex-wrap: wrap;
            align-items: center;
        }
        nav a {
            color: #e0e0ff;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 20px;
            transition: all .25s;
            font-size: .95rem;
        }
        nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, .12);
            text-decoration: none;
        }
        nav a i {
            margin-right: 6px;
            font-size: .85rem;
        }
        .breadcrumb {
            background: #eef1f5;
            padding: 10px 0;
            font-size: .9rem;
            border-bottom: 1px solid #dce1e8;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            padding: 0 20px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 12px;
            color: #888;
        }
        .breadcrumb a {
            color: #2a4a7f;
        }
        .breadcrumb .current {
            color: #666;
            font-weight: 600;
        }
        main {
            padding: 32px 0 48px;
        }
        .page-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .page-header h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #0f0c29;
            line-height: 1.2;
        }
        .page-header h1 i {
            color: #ffd700;
            margin-right: 12px;
        }
        .page-header .subhead {
            font-size: 1.15rem;
            color: #444;
            margin-top: 8px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }
        .last-updated {
            display: inline-block;
            margin-top: 12px;
            background: #e8edf4;
            padding: 6px 20px;
            border-radius: 30px;
            font-size: .9rem;
            color: #2a4a7f;
        }
        .last-updated i {
            margin-right: 6px;
        }
        .search-section {
            background: #fff;
            border-radius: 16px;
            padding: 28px 32px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, .06);
            margin-bottom: 36px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
        }
        .search-section label {
            font-weight: 700;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            gap: 8px;
            color: #1a1a2e;
        }
        .search-section form {
            flex: 1;
            display: flex;
            gap: 10px;
            min-width: 240px;
        }
        .search-section input[type="text"] {
            flex: 1;
            padding: 12px 18px;
            border: 2px solid #dce1e8;
            border-radius: 30px;
            font-size: 1rem;
            outline: none;
            transition: border .25s;
        }
        .search-section input[type="text"]:focus {
            border-color: #302b63;
        }
        .search-section button {
            padding: 12px 28px;
            background: #302b63;
            color: #fff;
            border: none;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background .25s, transform .2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-section button:hover {
            background: #0f0c29;
            transform: translateY(-2px);
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 36px;
        }
        .content-main {
            background: #fff;
            border-radius: 20px;
            padding: 36px 40px;
            box-shadow: 0 4px 28px rgba(0, 0, 0, .05);
        }
        .content-main h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: #0f0c29;
            margin: 40px 0 16px;
            padding-bottom: 8px;
            border-bottom: 4px solid #ffd700;
            display: inline-block;
        }
        .content-main h2:first-of-type {
            margin-top: 0;
        }
        .content-main h3 {
            font-size: 1.45rem;
            font-weight: 600;
            color: #1e1e3a;
            margin: 32px 0 12px;
        }
        .content-main h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #2a2a4a;
            margin: 24px 0 8px;
        }
        .content-main p {
            margin-bottom: 18px;
            color: #2d2d3f;
        }
        .content-main ul,
        .content-main ol {
            margin: 12px 0 20px 24px;
            color: #2d2d3f;
        }
        .content-main li {
            margin-bottom: 8px;
        }
        .content-main .highlight-box {
            background: #f0f4fe;
            border-left: 6px solid #302b63;
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }
        .content-main .highlight-box strong {
            color: #0f0c29;
        }
        .featured-image {
            margin: 28px 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(0, 0, 0, .08);
        }
        .featured-image figcaption {
            background: #f5f7fa;
            padding: 10px 16px;
            font-size: .9rem;
            color: #555;
            text-align: center;
        }
        .link-list {
            background: #f8faff;
            border-radius: 12px;
            padding: 20px 24px;
            margin: 24px 0;
            border: 1px solid #e0e7f0;
        }
        .link-list h4 {
            margin-top: 0;
            color: #0f0c29;
        }
        .link-list ul {
            list-style: none;
            padding: 0;
            margin: 12px 0 0;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 8px 16px;
        }
        .link-list li {
            margin: 0;
        }
        .link-list a {
            display: block;
            padding: 6px 12px;
            border-radius: 8px;
            transition: background .2s;
        }
        .link-list a:hover {
            background: #e8edf7;
            text-decoration: none;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 24px 22px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, .05);
        }
        .sidebar-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: #0f0c29;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-card h3 i {
            color: #ffd700;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card li {
            margin-bottom: 10px;
        }
        .sidebar-card a {
            display: block;
            padding: 8px 12px;
            border-radius: 10px;
            background: #f5f7fa;
            transition: background .2s, transform .2s;
        }
        .sidebar-card a:hover {
            background: #e8edf7;
            transform: translateX(4px);
            text-decoration: none;
        }
        .interaction-area {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-top: 40px;
        }
        .interaction-card {
            background: #fff;
            border-radius: 16px;
            padding: 24px 28px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, .05);
            border: 1px solid #e8ecf2;
        }
        .interaction-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #0f0c29;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .interaction-card form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .interaction-card input,
        .interaction-card textarea,
        .interaction-card select {
            padding: 12px 16px;
            border: 2px solid #dce1e8;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            outline: none;
            transition: border .25s;
            background: #fafcff;
        }
        .interaction-card input:focus,
        .interaction-card textarea:focus,
        .interaction-card select:focus {
            border-color: #302b63;
        }
        .interaction-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .interaction-card button {
            padding: 12px 24px;
            background: #302b63;
            color: #fff;
            border: none;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background .25s, transform .2s;
            align-self: flex-start;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .interaction-card button:hover {
            background: #0f0c29;
            transform: translateY(-2px);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            font-size: 1.8rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            color: #ddd;
            transition: color .2s, transform .2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #ffc107;
            transform: scale(1.05);
        }
        footer {
            background: #0f0c29;
            color: #ccc;
            padding: 40px 0 20px;
            margin-top: 48px;
        }
        footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
        }
        footer h4 {
            color: #ffd700;
            font-size: 1.1rem;
            margin-bottom: 16px;
        }
        footer a {
            color: #aab;
            transition: color .2s;
        }
        footer a:hover {
            color: #fff;
            text-decoration: underline;
        }
        friend-link {
            display: block;
            grid-column: 1 / -1;
            background: rgba(255, 255, 255, .04);
            padding: 20px 24px;
            border-radius: 12px;
            margin-top: 12px;
        }
        friend-link h4 {
            margin-bottom: 12px;
        }
        friend-link ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            padding: 0;
        }
        friend-link li {
            margin: 0;
        }
        .copyright {
            grid-column: 1 / -1;
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, .08);
            margin-top: 12px;
            font-size: .9rem;
            color: #8888aa;
        }
        .copyright strong {
            color: #ccd;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            footer .container {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 4px;
                padding: 12px 0 4px;
                border-top: 1px solid rgba(255, 255, 255, .1);
                margin-top: 8px;
            }
            nav.open {
                display: flex;
            }
            nav a {
                padding: 10px 16px;
                border-radius: 8px;
                width: 100%;
            }
            .header-inner {
                align-items: center;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .page-header h1 {
                font-size: 1.8rem;
            }
            .content-main {
                padding: 20px 18px;
            }
            .interaction-area {
                grid-template-columns: 1fr;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            footer .container {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .search-section {
                flex-direction: column;
                align-items: stretch;
                padding: 20px;
            }
            .search-section form {
                min-width: unset;
            }
            .link-list ul {
                grid-template-columns: 1fr;
            }
            .star-rating {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .page-header h1 {
                font-size: 1.5rem;
            }
            .content-main h2 {
                font-size: 1.4rem;
            }
            .content-main h3 {
                font-size: 1.2rem;
            }
            .breadcrumb ol {
                font-size: .8rem;
                padding: 0 12px;
            }
        }
        html {
            scroll-behavior: smooth;
        }
        :focus-visible {
            outline: 3px solid #ffd700;
            outline-offset: 2px;
        }