*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            background: #0f1923;
            color: #e8e8e8;
            line-height: 1.7;
            padding: 0;
            margin: 0;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #ff4655;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus {
            color: #ff7a85;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: #f0f4f8;
            margin-top: 2rem;
            margin-bottom: 0.75rem;
        }
        h1 {
            font-size: 2.75rem;
            margin-top: 0.5rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            border-bottom: 2px solid #ff4655;
            padding-bottom: 0.4rem;
        }
        h3 {
            font-size: 1.5rem;
            color: #f0c0c5;
        }
        h4 {
            font-size: 1.2rem;
            color: #d0d8e0;
        }
        p {
            margin-bottom: 1.25rem;
        }
        hr {
            border: none;
            height: 1px;
            background: linear-gradient(90deg, transparent, #ff4655, transparent);
            margin: 2.5rem 0;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        header {
            background: #1a2733;
            background-image: linear-gradient(145deg, #0f1923 0%, #1a2733 100%);
            border-bottom: 2px solid #ff4655;
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(255, 70, 85, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.5rem 1rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #ff4655;
            letter-spacing: -0.03em;
            background: linear-gradient(135deg, #ff4655, #ff8a95);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
        }
        .my-logo i {
            -webkit-text-fill-color: #ff4655;
            font-size: 1.6rem;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.75rem;
            font-weight: 400;
            -webkit-text-fill-color: #aab;
            letter-spacing: 0.04em;
            margin-left: 0.3rem;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 0.25rem 0.5rem;
            flex-wrap: wrap;
            padding: 0;
        }
        .nav-list li a {
            padding: 0.4rem 0.9rem;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 500;
            color: #ccd8e0;
            background: rgba(255, 255, 255, 0.04);
            transition: all 0.2s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .nav-list li a:hover,
        .nav-list li a.active {
            background: #ff4655;
            color: #fff;
            text-decoration: none;
            box-shadow: 0 0 16px rgba(255, 70, 85, 0.35);
        }
        .hamburger {
            display: none;
            background: none;
            border: 2px solid #ff4655;
            color: #ff4655;
            font-size: 1.5rem;
            padding: 0.3rem 0.7rem;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #ff4655;
            color: #fff;
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            background: rgba(0, 0, 0, 0.3);
            padding: 0.6rem 1.5rem;
            font-size: 0.85rem;
            border-bottom: 1px solid rgba(255, 70, 85, 0.15);
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
        }
        .breadcrumb a {
            color: #99b0c0;
        }
        .breadcrumb a:hover {
            color: #ff4655;
        }
        .breadcrumb span {
            color: #ff7a85;
        }
        .breadcrumb i {
            margin: 0 0.2rem;
            font-size: 0.7rem;
            color: #667;
        }
        main {
            flex: 1;
            padding: 2rem 0 4rem;
        }
        .article-wrapper {
            background: rgba(20, 30, 40, 0.6);
            border-radius: 20px;
            padding: 2.5rem 2rem;
            backdrop-filter: blur(2px);
            border: 1px solid rgba(255, 70, 85, 0.1);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
        }
        .hero-img {
            margin: 1.5rem 0 2.5rem;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
            background: #1a2a35;
            position: relative;
        }
        .hero-img img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .hero-img:hover img {
            transform: scale(1.01);
        }
        .hero-img .img-caption {
            background: rgba(0, 0, 0, 0.7);
            padding: 0.75rem 1.25rem;
            font-size: 0.9rem;
            color: #ccd;
            border-top: 2px solid #ff4655;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
            border-radius: 12px;
            border: 1px solid rgba(255, 70, 85, 0.15);
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: rgba(15, 25, 35, 0.8);
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 0.85rem 1.2rem;
            text-align: left;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        th {
            background: #ff4655;
            color: #fff;
            font-weight: 600;
            letter-spacing: 0.03em;
        }
        tr:hover td {
            background: rgba(255, 70, 85, 0.06);
        }
        .form-card {
            background: rgba(25, 38, 50, 0.8);
            border: 1px solid rgba(255, 70, 85, 0.2);
            border-radius: 16px;
            padding: 2rem;
            margin: 1.8rem 0;
            backdrop-filter: blur(4px);
        }
        .form-card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .form-group {
            margin-bottom: 1.25rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.35rem;
            color: #d0dce8;
            font-size: 0.95rem;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            background: rgba(0, 0, 0, 0.4);
            color: #f0f4f8;
            font-size: 1rem;
            font-family: inherit;
            transition: border 0.2s, box-shadow 0.2s;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: #ff4655;
            box-shadow: 0 0 0 3px rgba(255, 70, 85, 0.2);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 1.8rem;
            border: none;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.25s ease;
            background: #ff4655;
            color: #fff;
        }
        .btn:hover {
            background: #e03a48;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 70, 85, 0.35);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid #ff4655;
            color: #ff4655;
        }
        .btn-outline:hover {
            background: #ff4655;
            color: #fff;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.25rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #445;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #ffb800;
        }
        .link-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 0.75rem;
            margin: 1.5rem 0;
        }
        .link-grid a {
            background: rgba(255, 70, 85, 0.06);
            padding: 0.6rem 1rem;
            border-radius: 30px;
            border: 1px solid rgba(255, 70, 85, 0.1);
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: all 0.2s;
        }
        .link-grid a:hover {
            background: rgba(255, 70, 85, 0.15);
            border-color: #ff4655;
            text-decoration: none;
            transform: translateX(4px);
        }
        footer {
            background: #0a121c;
            border-top: 2px solid #ff4655;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
        }
        footer .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }
        friend-link {
            display: block;
            padding: 1.2rem;
            background: rgba(255, 70, 85, 0.04);
            border-radius: 14px;
            border: 1px solid rgba(255, 70, 85, 0.08);
        }
        friend-link .fl-head {
            font-weight: 700;
            color: #ff7a85;
            margin-bottom: 0.6rem;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        friend-link a {
            display: inline-block;
            margin-right: 1rem;
            margin-bottom: 0.3rem;
            color: #aac0d0;
            font-size: 0.9rem;
        }
        friend-link a:hover {
            color: #ff4655;
        }
        .copyright {
            grid-column: 1 / -1;
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 0.85rem;
            color: #8899aa;
        }
        .copyright strong {
            color: #ccd8e0;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .article-wrapper {
                padding: 1.5rem 1rem;
            }
            .header-inner {
                flex-wrap: nowrap;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                background: #1a2733;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                padding: 1rem 1.5rem;
                border-bottom: 2px solid #ff4655;
                box-shadow: 0 8px 30px rgba(0, 0, 0, 0.7);
                gap: 0.5rem;
            }
            .nav-list li a {
                display: block;
                padding: 0.6rem 1rem;
                border-radius: 8px;
            }
            .hamburger {
                display: block;
            }
            #nav-toggle:checked~.nav-list {
                display: flex;
            }
            footer .container {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .link-grid {
                grid-template-columns: 1fr 1fr;
            }
            .form-card {
                padding: 1.25rem;
            }
            .breadcrumb {
                padding: 0.5rem 1rem;
                font-size: 0.75rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .hero-img img {
                max-height: 220px;
            }
        }
        @media (max-width: 480px) {
            .link-grid {
                grid-template-columns: 1fr;
            }
            table {
                font-size: 0.8rem;
            }
            th,
            td {
                padding: 0.5rem 0.6rem;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
        }
        .highlight {
            color: #ff7a85;
            font-weight: 600;
        }
        .tag {
            display: inline-block;
            background: #ff4655;
            color: #fff;
            padding: 0.15rem 0.7rem;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.03em;
        }
        .flex-between {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.5rem;
            align-items: center;
        }
        .last-updated {
            color: #99b0c0;
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .card-stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 1rem;
            margin: 1.5rem 0;
        }
        .stat-item {
            background: rgba(255, 70, 85, 0.06);
            border-radius: 12px;
            padding: 1rem;
            text-align: center;
            border: 1px solid rgba(255, 70, 85, 0.08);
        }
        .stat-item .num {
            font-size: 2rem;
            font-weight: 800;
            color: #ff4655;
            display: block;
        }
        .stat-item .label {
            font-size: 0.85rem;
            color: #aab8c8;
        }
        .quote-block {
            border-left: 4px solid #ff4655;
            padding: 0.8rem 1.5rem;
            margin: 1.5rem 0;
            background: rgba(255, 70, 85, 0.04);
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #d0dce8;
        }
        .quote-block cite {
            display: block;
            margin-top: 0.5rem;
            font-style: normal;
            font-weight: 600;
            color: #ff7a85;
        }
        .hidden-schema {
            display: none;
        }