*,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f4f7fb;
            color: #1a2634;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #1a6fb5;
            text-decoration: none;
            transition: color .2s;
        }
        a:hover {
            color: #0d4b7a;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.4rem;
        }
        li {
            margin-bottom: 0.3rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #fff;
            border-radius: 24px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.06);
            padding: 1.5rem 2rem 2rem;
            margin-top: 1.2rem;
            margin-bottom: 2rem;
        }
        header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 0.75rem 0 1rem;
            border-bottom: 2px solid #eef2f6;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(145deg, #1a2a3a, #2c4a6a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo i {
            background: none;
            -webkit-text-fill-color: #1a6fb5;
            font-size: 2rem;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        nav {
            display: flex;
            align-items: center;
            gap: 1.6rem;
            flex-wrap: wrap;
        }
        nav a {
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.4rem 0.2rem;
            border-bottom: 2px solid transparent;
            transition: border-color .2s, color .2s;
        }
        nav a:hover {
            border-bottom-color: #1a6fb5;
            text-decoration: none;
            color: #0d4b7a;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            cursor: pointer;
            color: #1a2634;
            padding: 0.2rem 0.4rem;
            transition: transform .2s;
        }
        .hamburger:hover {
            transform: scale(1.08);
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                gap: 0.6rem;
                padding: 1rem 0 0.5rem;
                border-top: 1px solid #eef2f6;
                margin-top: 0.75rem;
            }
            nav.show {
                display: flex;
            }
            nav a {
                width: 100%;
                padding: 0.5rem 0;
                border-bottom: 1px solid #f0f2f5;
            }
            .container {
                padding: 1rem 1.2rem 1.5rem;
            }
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.6rem;
            font-size: 0.85rem;
            color: #5a6a7a;
            padding: 0.6rem 0 0.2rem;
            border-bottom: 1px solid #f0f2f5;
            margin-bottom: 1.2rem;
        }
        .breadcrumb a {
            color: #1a6fb5;
        }
        .breadcrumb span {
            color: #8a9aa8;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin: 1.2rem 0 0.8rem;
            color: #0a1a2a;
            letter-spacing: -0.5px;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin: 2.2rem 0 0.8rem;
            padding-bottom: 0.3rem;
            border-bottom: 3px solid #eef2f6;
            color: #0f2a3f;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin: 1.6rem 0 0.6rem;
            color: #1a3a55;
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin: 1rem 0 0.4rem;
            color: #2a4a6a;
        }
        p {
            margin-bottom: 1rem;
        }
        .content-section {
            margin-bottom: 2rem;
        }
        .highlight {
            background: #eef6ff;
            padding: 0.2rem 0.5rem;
            border-radius: 6px;
            font-weight: 600;
        }
        .emoji-big {
            font-size: 1.4rem;
            margin-right: 0.3rem;
        }
        .feature-img {
            margin: 1.6rem 0 1.2rem;
            border-radius: 16px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
        }
        .feature-img figcaption {
            font-size: 0.9rem;
            color: #4a5a6a;
            margin-top: 0.4rem;
            font-style: italic;
            text-align: center;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 1.2rem;
            margin: 1.2rem 0 1.6rem;
        }
        .stat-card {
            background: #f8fafc;
            padding: 1.2rem 1rem;
            border-radius: 16px;
            text-align: center;
            border: 1px solid #eaf0f6;
            transition: transform .2s, box-shadow .2s;
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
        }
        .stat-card .number {
            font-size: 2.2rem;
            font-weight: 800;
            color: #1a6fb5;
            display: block;
        }
        .stat-card .label {
            font-size: 0.95rem;
            color: #3a4a5a;
            font-weight: 500;
        }
        .interview-block {
            background: #f4f9ff;
            padding: 1.5rem 1.8rem;
            border-radius: 18px;
            border-left: 6px solid #1a6fb5;
            margin: 1.4rem 0 1.8rem;
        }
        .interview-block .speaker {
            font-weight: 700;
            color: #0d4b7a;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.2rem 0 1.6rem;
            font-size: 0.95rem;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
        }
        th {
            background: #1a2a3a;
            color: #fff;
            font-weight: 600;
            padding: 0.7rem 1rem;
            text-align: left;
        }
        td {
            padding: 0.6rem 1rem;
            border-bottom: 1px solid #eef2f6;
        }
        tr:last-child td {
            border-bottom: none;
        }
        tr:nth-child(even) td {
            background: #f8fafc;
        }
        .search-box {
            display: flex;
            gap: 0.6rem;
            flex-wrap: wrap;
            margin: 1.2rem 0 1.6rem;
            padding: 1.2rem 1.4rem;
            background: #f4f7fb;
            border-radius: 18px;
            border: 1px solid #e2e8f0;
        }
        .search-box input {
            flex: 1;
            min-width: 180px;
            padding: 0.8rem 1.2rem;
            border: 1px solid #d0d8e0;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border-color .2s, box-shadow .2s;
        }
        .search-box input:focus {
            border-color: #1a6fb5;
            box-shadow: 0 0 0 3px rgba(26, 111, 181, 0.12);
        }
        .search-box button {
            padding: 0.8rem 2rem;
            background: #1a6fb5;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background .2s, transform .1s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-box button:hover {
            background: #0d4b7a;
            transform: scale(1.02);
        }
        .feedback-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.6rem;
            margin: 2rem 0 1.4rem;
            padding: 1.6rem 0;
            border-top: 2px solid #eef2f6;
            border-bottom: 2px solid #eef2f6;
        }
        @media (max-width: 700px) {
            .feedback-section {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
        }
        .feedback-card {
            background: #fafcfe;
            padding: 1.4rem 1.6rem;
            border-radius: 20px;
            border: 1px solid #e8edf2;
        }
        .feedback-card h3 {
            margin-top: 0;
            font-size: 1.2rem;
            border-bottom: none;
        }
        .feedback-card textarea,
        .feedback-card input[type="number"] {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1px solid #d0d8e0;
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: inherit;
            margin: 0.5rem 0 0.8rem;
            outline: none;
            transition: border-color .2s;
            resize: vertical;
        }
        .feedback-card textarea:focus,
        .feedback-card input:focus {
            border-color: #1a6fb5;
        }
        .feedback-card button {
            padding: 0.65rem 1.8rem;
            background: #1a6fb5;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background .2s;
        }
        .feedback-card button:hover {
            background: #0d4b7a;
        }
        .star-rating {
            display: flex;
            gap: 0.2rem;
            font-size: 1.6rem;
            color: #d0d8e0;
            cursor: pointer;
            margin: 0.4rem 0 0.8rem;
        }
        .star-rating i.active {
            color: #f5b342;
        }
        .star-rating i:hover,
        .star-rating i.hover {
            color: #f5b342;
        }
        friend-link {
            display: block;
            padding: 1.4rem 0 0.8rem;
            border-top: 2px solid #eef2f6;
            margin-top: 1.6rem;
        }
        friend-link .fl-title {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.6rem;
            color: #0a1a2a;
        }
        friend-link .fl-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 1.4rem;
        }
        friend-link a {
            font-size: 0.95rem;
        }
        footer {
            padding: 1.2rem 0 0.4rem;
            font-size: 0.9rem;
            color: #4a5a6a;
            border-top: 1px solid #eef2f6;
            margin-top: 0.8rem;
            text-align: center;
        }
        footer .copyright {
            font-weight: 500;
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .container {
                padding: 0.8rem 0.8rem 1.2rem;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.8rem;
            }
            .stat-card .number {
                font-size: 1.6rem;
            }
        }
        :target {
            scroll-margin-top: 80px;
        }
        .back-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: #1a6fb5;
            color: #fff;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
            transition: transform .2s, background .2s;
            z-index: 99;
            opacity: 0.85;
        }
        .back-top:hover {
            background: #0d4b7a;
            transform: translateY(-4px);
            text-decoration: none;
            opacity: 1;
        }
        @media (max-width: 600px) {
            .back-top {
                bottom: 1.2rem;
                right: 1.2rem;
                width: 42px;
                height: 42px;
                font-size: 1.2rem;
            }
        }