*,
        *::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, 'Helvetica Neue', sans-serif;
            background: #f7f9fc;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #0066cc;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #004080;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        .site-header {
            background: linear-gradient(145deg, #0b1a2e, #1a2f44);
            color: #fff;
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, #f9d976, #f39c12);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 0 30px rgba(243, 156, 18, 0.2);
            display: inline-block;
            transition: transform 0.3s;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: #f9d976;
            margin-right: 0.25rem;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .main-nav {
            display: flex;
            gap: 0.25rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #e0e9f0;
            padding: 0.5rem 1rem;
            border-radius: 2rem;
            font-weight: 500;
            font-size: 0.9rem;
            transition: background 0.25s, color 0.25s;
            white-space: nowrap;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #f9d976;
            text-decoration: none;
        }
        .main-nav a i {
            margin-right: 0.35rem;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            background: none;
            border: none;
            padding: 0.5rem;
            gap: 5px;
        }
        .hamburger span {
            display: block;
            width: 28px;
            height: 3px;
            background: #f9d976;
            border-radius: 4px;
            transition: 0.3s;
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }
        .breadcrumb {
            background: #eef2f7;
            padding: 0.6rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #dce3ec;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #7a8a9e;
        }
        .breadcrumb a {
            color: #2c5f8a;
        }
        .breadcrumb .current {
            color: #4a5a6e;
            font-weight: 500;
        }
        main {
            padding: 2rem 0 3rem;
        }
        article {
            background: #fff;
            border-radius: 24px;
            padding: 2.5rem 2.8rem;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.06);
            margin-bottom: 2.5rem;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 0.75rem;
            color: #0b1a2e;
        }
        h1 i {
            color: #f39c12;
            margin-right: 0.3rem;
        }
        .article-meta {
            color: #5a6f84;
            font-size: 0.9rem;
            margin-bottom: 1.8rem;
            border-bottom: 1px solid #eef2f7;
            padding-bottom: 1rem;
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem 1.5rem;
        }
        .article-meta i {
            margin-right: 0.3rem;
            color: #f39c12;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-top: 2.8rem;
            margin-bottom: 1rem;
            color: #0f2640;
            border-left: 5px solid #f39c12;
            padding-left: 1rem;
        }
        h2 i {
            color: #f39c12;
            margin-right: 0.5rem;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
            color: #1a334f;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
            color: #2c4a6a;
        }
        p {
            margin-bottom: 1.2rem;
            color: #2c3e50;
        }
        .highlight-box {
            background: #fef8ee;
            border-left: 5px solid #f39c12;
            padding: 1.2rem 1.8rem;
            border-radius: 12px;
            margin: 1.5rem 0;
        }
        .highlight-box strong {
            color: #b5640e;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 1.2rem;
            margin: 1.5rem 0;
        }
        .stat-card {
            background: #f0f5fb;
            border-radius: 16px;
            padding: 1.2rem 1rem;
            text-align: center;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
        }
        .stat-card .num {
            font-size: 2rem;
            font-weight: 800;
            color: #0b1a2e;
        }
        .stat-card .label {
            font-size: 0.9rem;
            color: #4a5a6e;
        }
        .stat-card i {
            font-size: 1.8rem;
            color: #f39c12;
            margin-bottom: 0.3rem;
        }
        .interview-box {
            background: #f4f8ff;
            border-radius: 18px;
            padding: 1.5rem 2rem;
            margin: 1.5rem 0;
            border: 1px solid #dce8f5;
        }
        .interview-box .name {
            font-weight: 700;
            color: #0b1a2e;
            font-size: 1.1rem;
        }
        .interview-box .name i {
            color: #f39c12;
            margin-right: 0.5rem;
        }
        .interview-box .quote {
            font-style: italic;
            margin: 0.5rem 0 0.2rem;
            color: #1e3a5a;
        }
        .btn {
            display: inline-block;
            background: #f39c12;
            color: #0b1a2e;
            padding: 0.5rem 1.4rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.9rem;
            transition: background 0.25s, transform 0.2s;
            border: none;
            cursor: pointer;
        }
        .btn:hover {
            background: #e08e0b;
            transform: scale(1.02);
            text-decoration: none;
            color: #0b1a2e;
        }
        .btn i {
            margin-right: 0.4rem;
        }
        .feature-img {
            border-radius: 20px;
            margin: 2rem 0;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        .interaction-area {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin: 2.5rem 0 1.5rem;
        }
        .interaction-card {
            background: #fff;
            border-radius: 20px;
            padding: 1.8rem 2rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            border: 1px solid #eef2f7;
        }
        .interaction-card h3 {
            margin-top: 0;
            font-size: 1.3rem;
        }
        .interaction-card form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            margin-top: 0.8rem;
        }
        .interaction-card input,
        .interaction-card textarea,
        .interaction-card select {
            padding: 0.7rem 1rem;
            border: 1px solid #d0d9e5;
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: inherit;
            background: #fafcff;
            transition: border 0.2s;
        }
        .interaction-card input:focus,
        .interaction-card textarea:focus,
        .interaction-card select:focus {
            border-color: #f39c12;
            outline: none;
            box-shadow: 0 0 0 3px rgba(243, 156, 18, 0.15);
        }
        .interaction-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .interaction-card .btn-submit {
            background: #0b1a2e;
            color: #fff;
            border: none;
            padding: 0.7rem 1.5rem;
            border-radius: 2rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            align-self: flex-start;
        }
        .interaction-card .btn-submit:hover {
            background: #1a2f44;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            font-size: 1.8rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            color: #d0d9e5;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f39c12;
        }
        .link-list-section {
            background: #f0f5fb;
            border-radius: 20px;
            padding: 1.8rem 2rem;
            margin: 2rem 0;
        }
        .link-list-section h3 {
            margin-top: 0;
        }
        .link-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 0.6rem 1.2rem;
            list-style: none;
            padding: 0;
        }
        .link-grid li a {
            display: block;
            padding: 0.4rem 0.8rem;
            border-radius: 10px;
            background: #fff;
            transition: background 0.2s, transform 0.15s;
            font-weight: 500;
        }
        .link-grid li a:hover {
            background: #fef8ee;
            transform: translateX(4px);
            text-decoration: none;
        }
        .link-grid li a i {
            color: #f39c12;
            margin-right: 0.5rem;
            font-size: 0.8rem;
        }
        .site-footer {
            background: #0b1a2e;
            color: #c8d6e5;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        .site-footer a {
            color: #b0c8dd;
        }
        .site-footer a:hover {
            color: #f9d976;
        }
        .site-footer h4 {
            color: #f9d976;
            margin-top: 0;
            font-size: 1.1rem;
        }
        friend-link {
            display: block;
            padding: 1rem 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 1.5rem;
        }
        friend-link a {
            display: inline-block;
            margin-right: 1.5rem;
            padding: 0.3rem 0;
        }
        friend-link a i {
            margin-right: 0.3rem;
            font-size: 0.8rem;
        }
        .copyright {
            text-align: center;
            font-size: 0.85rem;
            padding-top: 1.2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            margin-top: 1.2rem;
            color: #8a9eb2;
        }
        @media (max-width: 900px) {
            article {
                padding: 1.8rem 1.2rem;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            .interaction-area {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 700px) {
            .hamburger {
                display: flex;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #13273e;
                padding: 1rem 0.5rem;
                border-radius: 0 0 18px 18px;
                margin-top: 0.5rem;
                gap: 0.2rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.6rem 1rem;
                border-radius: 12px;
            }
            .header-inner {
                align-items: center;
            }
            .nav-wrapper {
                width: 100%;
                justify-content: space-between;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
            }
            .link-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .my-logo {
                font-size: 1.3rem;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            article {
                padding: 1rem 0.8rem;
            }
            .stat-grid {
                grid-template-columns: 1fr;
            }
            .interaction-card {
                padding: 1.2rem;
            }
        }
        .schema-hidden {
            display: none;
        }
        .emoji-lg {
            font-size: 1.4em;
            line-height: 1;
        }
        .tag {
            display: inline-block;
            background: #eef2f7;
            border-radius: 2rem;
            padding: 0.2rem 0.8rem;
            font-size: 0.8rem;
            font-weight: 500;
            color: #2c4a6a;
        }
        .last-updated {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: #eef2f7;
            padding: 0.3rem 1rem;
            border-radius: 2rem;
            font-size: 0.85rem;
        }
        .last-updated i {
            color: #f39c12;
        }