* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: #f5f7fa;
            color: #1e293b;
            line-height: 1.7;
            padding: 0 16px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.06);
            border-radius: 32px;
            padding: 20px 28px 40px;
            margin-top: 20px;
            margin-bottom: 40px;
        }
        .header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0 12px;
            border-bottom: 2px solid #eef2f6;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #0f2b5e, #1e4a8a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            -webkit-text-fill-color: #1e4a8a;
            font-size: 2rem;
        }
        .my-logo:hover {
            opacity: 0.85;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 18px;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 12px 20px;
            flex-wrap: wrap;
        }
        .nav-list a {
            text-decoration: none;
            color: #1e293b;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 8px;
            border-radius: 8px;
            transition: background 0.2s, color 0.2s;
        }
        .nav-list a:hover {
            background: #e8edf5;
            color: #0f2b5e;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #0f2b5e;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #e8edf5;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            font-size: 0.85rem;
            color: #5f6c80;
            padding: 14px 0 6px;
            gap: 6px 10px;
        }
        .breadcrumb li+li::before {
            content: "▸";
            margin-right: 10px;
            color: #b0b9c9;
        }
        .breadcrumb a {
            color: #2c5f8a;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .current {
            color: #1e293b;
            font-weight: 600;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin: 24px 0 16px;
            color: #0a1e3c;
            letter-spacing: -0.5px;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin: 48px 0 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid #dce3ed;
            color: #0f2b5e;
        }
        h3 {
            font-size: 1.45rem;
            font-weight: 600;
            margin: 32px 0 12px;
            color: #1a3d6b;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin: 24px 0 8px;
            color: #2c4e7a;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
            color: #1e293b;
        }
        .lead {
            font-size: 1.25rem;
            font-weight: 400;
            color: #2c3e5c;
            border-left: 4px solid #1e4a8a;
            padding-left: 20px;
            margin: 16px 0 28px;
            background: #f8faff;
            border-radius: 0 12px 12px 0;
            padding: 16px 24px;
        }
        .highlight-box {
            background: #f0f5fe;
            border-radius: 20px;
            padding: 24px 28px;
            margin: 28px 0;
            border: 1px solid #d9e4f0;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 16px;
            margin: 20px 0 28px;
        }
        .stat-card {
            background: #ffffff;
            border-radius: 16px;
            padding: 18px 16px;
            text-align: center;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
            border: 1px solid #e6ecf5;
            transition: transform 0.2s;
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.06);
        }
        .stat-card .number {
            font-size: 2.2rem;
            font-weight: 800;
            color: #0f2b5e;
            display: block;
        }
        .stat-card .label {
            font-size: 0.9rem;
            color: #5f6c80;
            margin-top: 4px;
        }
        .feature-img {
            width: 100%;
            max-width: 820px;
            height: auto;
            border-radius: 20px;
            margin: 28px auto;
            display: block;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
            border: 1px solid #eef2f7;
        }
        .img-caption {
            text-align: center;
            font-size: 0.9rem;
            color: #5f6c80;
            margin-top: -18px;
            margin-bottom: 28px;
        }
        .link-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 18px;
            list-style: none;
            margin: 20px 0 28px;
            padding: 0;
        }
        .link-list li a {
            background: #f0f4fc;
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            color: #0f2b5e;
            text-decoration: none;
            border: 1px solid #d9e4f0;
            transition: background 0.2s, transform 0.1s;
            display: inline-block;
        }
        .link-list li a:hover {
            background: #dce6f5;
            transform: scale(1.02);
            border-color: #b0c6e0;
        }
        blockquote {
            font-style: italic;
            background: #f4f7fc;
            border-left: 5px solid #1e4a8a;
            padding: 20px 28px;
            border-radius: 0 16px 16px 0;
            margin: 24px 0;
            color: #1e3a5f;
            font-size: 1.1rem;
        }
        .interview-box {
            background: #faf5eb;
            border-radius: 20px;
            padding: 24px 28px;
            margin: 28px 0;
            border: 1px solid #e8ddcc;
        }
        .interview-box strong {
            color: #7a4a1a;
        }
        .interactive-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 48px 0 32px;
        }
        .card-module {
            background: #f8faff;
            border-radius: 20px;
            padding: 24px 28px;
            border: 1px solid #e2eaf5;
        }
        .card-module h3 {
            margin-top: 0;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .card-module form {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 12px;
        }
        .card-module input,
        .card-module textarea,
        .card-module select {
            flex: 1 1 200px;
            padding: 12px 16px;
            border: 1px solid #cbd5e1;
            border-radius: 12px;
            font-size: 1rem;
            background: #ffffff;
            transition: border 0.2s;
        }
        .card-module input:focus,
        .card-module textarea:focus,
        .card-module select:focus {
            border-color: #1e4a8a;
            outline: none;
            box-shadow: 0 0 0 3px rgba(30, 74, 138, 0.12);
        }
        .card-module textarea {
            min-height: 80px;
            flex-basis: 100%;
        }
        .btn {
            background: #0f2b5e;
            color: #ffffff;
            border: none;
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn:hover {
            background: #1a3d6b;
            transform: scale(1.02);
        }
        .btn-outline {
            background: transparent;
            color: #0f2b5e;
            border: 2px solid #0f2b5e;
        }
        .btn-outline:hover {
            background: #e8edf5;
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #d1d9e8;
            cursor: pointer;
            margin: 8px 0;
        }
        .star-rating i {
            transition: color 0.15s, transform 0.1s;
        }
        .star-rating i:hover,
        .star-rating i.active {
            color: #f5b342;
            transform: scale(1.1);
        }
        .star-rating i.selected {
            color: #f5b342;
        }
        friend-link {
            display: block;
            padding: 20px 0 12px;
            border-top: 2px solid #eef2f6;
            margin-top: 40px;
        }
        friend-link .fl-head {
            font-weight: 700;
            font-size: 1.1rem;
            color: #0f2b5e;
            margin-bottom: 10px;
        }
        friend-link .fl-list {
            display: flex;
            flex-wrap: wrap;
            gap: 14px 24px;
            list-style: none;
        }
        friend-link .fl-list a {
            color: #2c5f8a;
            text-decoration: none;
            font-size: 0.95rem;
        }
        friend-link .fl-list a:hover {
            text-decoration: underline;
        }
        .footer {
            padding: 28px 0 12px;
            border-top: 1px solid #e2eaf5;
            margin-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: 0.9rem;
            color: #5f6c80;
        }
        .footer .copyright {
            font-weight: 400;
        }
        .footer .update-time {
            background: #eef2f6;
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 0.85rem;
        }
        @media (max-width: 768px) {
            .container {
                padding: 12px 14px 28px;
                border-radius: 20px;
                margin-top: 12px;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .header {
                flex-wrap: wrap;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #ffffff;
                padding: 12px 0 16px;
                border-top: 1px solid #e2eaf5;
                margin-top: 8px;
            }
            .nav-list.show {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .interactive-section {
                grid-template-columns: 1fr;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .stat-grid {
                grid-template-columns: 1fr;
            }
            .card-module {
                padding: 16px;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
        }
        html {
            scroll-behavior: smooth;
        }
        .hidden-schema {
            display: none;
        }