*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f5f7fc;
            color: #1e293b;
            line-height: 1.75;
            padding: 0 16px;
        }
        a {
            color: #1e4a7a;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #e67e22;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin: 0.75rem 0;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: #0b1e33;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
        }
        h1 {
            font-size: 2.2rem;
            border-bottom: 4px solid #e67e22;
            padding-bottom: 0.4rem;
        }
        h2 {
            font-size: 1.7rem;
            border-left: 6px solid #e67e22;
            padding-left: 0.75rem;
        }
        h3 {
            font-size: 1.3rem;
        }
        h4 {
            font-size: 1.1rem;
            color: #2c3e50;
        }
        p {
            margin: 0.9rem 0;
        }
        strong,
        b {
            color: #0b1e33;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            border-radius: 20px;
            padding: 20px 24px 30px;
        }
        @media (max-width: 600px) {
            body {
                padding: 0 8px;
            }
            .container {
                padding: 12px 14px 20px;
                border-radius: 12px;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            h3 {
                font-size: 1.1rem;
            }
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0 10px;
            border-bottom: 2px solid #e9edf4;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            background: linear-gradient(135deg, #1e4a7a, #e67e22);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo i {
            -webkit-text-fill-color: #e67e22;
            font-size: 1.7rem;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.85;
        }
        .my-logo small {
            font-size: 0.7rem;
            -webkit-text-fill-color: #64748b;
            font-weight: 400;
            letter-spacing: 0.3px;
            display: block;
            margin-top: -4px;
        }
        .nav-bar {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
        }
        .nav-bar a {
            font-weight: 600;
            font-size: 0.95rem;
            padding: 6px 10px;
            border-radius: 8px;
            color: #1e293b;
            transition: background 0.2s, color 0.2s;
        }
        .nav-bar a:hover {
            background: #eef2f9;
            color: #e67e22;
            text-decoration: none;
        }
        .nav-bar .active {
            color: #e67e22;
            background: #fef3e7;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #1e293b;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #eef2f9;
        }
        @media (max-width: 780px) {
            .hamburger {
                display: block;
            }
            .nav-bar {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
                padding: 14px 0 8px;
                border-top: 1px solid #e9edf4;
                margin-top: 10px;
            }
            .nav-bar.open {
                display: flex;
            }
            .nav-bar a {
                width: 100%;
                padding: 10px 12px;
                border-radius: 6px;
            }
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px 10px;
            font-size: 0.85rem;
            color: #64748b;
            padding: 10px 0 6px;
            border-bottom: 1px solid #f0f2f6;
            margin-bottom: 18px;
        }
        .breadcrumb a {
            color: #1e4a7a;
        }
        .breadcrumb a:hover {
            color: #e67e22;
        }
        .breadcrumb span {
            color: #94a3b8;
        }
        .search-wrap {
            display: flex;
            max-width: 480px;
            margin: 18px 0 12px;
            border-radius: 40px;
            overflow: hidden;
            border: 1px solid #dce2ec;
            background: #fff;
            transition: box-shadow 0.2s;
        }
        .search-wrap:focus-within {
            box-shadow: 0 0 0 3px rgba(230, 126, 34, 0.25);
            border-color: #e67e22;
        }
        .search-wrap input {
            flex: 1;
            padding: 12px 18px;
            border: none;
            outline: none;
            font-size: 0.95rem;
            background: transparent;
            min-width: 0;
        }
        .search-wrap button {
            background: #e67e22;
            color: #fff;
            border: none;
            padding: 0 22px;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s;
            display: flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
        }
        .search-wrap button:hover {
            background: #cf6d17;
        }
        .highlight-box {
            background: #fef9f4;
            border-left: 6px solid #e67e22;
            padding: 16px 20px;
            border-radius: 0 12px 12px 0;
            margin: 1.2rem 0;
        }
        .highlight-box p {
            margin: 0.3rem 0;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 16px;
            margin: 1.2rem 0;
        }
        .stat-card {
            background: #f1f5fb;
            padding: 16px 14px;
            border-radius: 14px;
            text-align: center;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
        }
        .stat-card .num {
            font-size: 2rem;
            font-weight: 800;
            color: #e67e22;
            display: block;
        }
        .stat-card .label {
            font-size: 0.85rem;
            color: #475569;
            font-weight: 500;
        }
        .tier-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.2rem 0;
            font-size: 0.95rem;
        }
        .tier-table th {
            background: #1e4a7a;
            color: #fff;
            padding: 10px 12px;
            text-align: left;
        }
        .tier-table td {
            padding: 10px 12px;
            border-bottom: 1px solid #e9edf4;
        }
        .tier-table tr:hover td {
            background: #f8fafd;
        }
        .tier-S {
            background: #fef7e0;
        }
        .tier-A {
            background: #f0f7ff;
        }
        .tier-B {
            background: #f5f5f5;
        }
        .badge {
            display: inline-block;
            background: #e67e22;
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 2px 10px;
            border-radius: 20px;
            letter-spacing: 0.3px;
        }
        .rating-area,
        .comment-area {
            background: #f8fafc;
            border-radius: 16px;
            padding: 20px 22px;
            margin: 1.8rem 0;
            border: 1px solid #e9edf4;
        }
        .rating-area h3,
        .comment-area h3 {
            margin-top: 0;
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #d1d5db;
            cursor: pointer;
            margin: 8px 0 12px;
        }
        .star-rating i.active {
            color: #f59e0b;
        }
        .star-rating i:hover {
            color: #f59e0b;
            transform: scale(1.1);
        }
        .comment-area textarea {
            width: 100%;
            padding: 12px 16px;
            border-radius: 12px;
            border: 1px solid #dce2ec;
            font-size: 0.95rem;
            resize: vertical;
            min-height: 90px;
            font-family: inherit;
            transition: border-color 0.2s;
        }
        .comment-area textarea:focus {
            border-color: #e67e22;
            outline: none;
            box-shadow: 0 0 0 3px rgba(230, 126, 34, 0.15);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #1e4a7a;
            color: #fff;
            border: none;
            padding: 10px 26px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .btn:hover {
            background: #163d65;
            transform: translateY(-1px);
            text-decoration: none;
            color: #fff;
        }
        .btn-orange {
            background: #e67e22;
        }
        .btn-orange:hover {
            background: #cf6d17;
        }
        .interview-block {
            background: #f0f4fe;
            border-radius: 16px;
            padding: 20px 22px;
            margin: 1.5rem 0;
            border-left: 6px solid #1e4a7a;
        }
        .interview-block .who {
            font-weight: 700;
            color: #1e4a7a;
            font-size: 1.05rem;
        }
        .interview-block .quote {
            font-style: italic;
            color: #2c3e50;
            padding: 6px 0 4px 16px;
            border-left: 3px solid #e67e22;
            margin: 8px 0;
        }
        friend-link {
            display: block;
            padding: 14px 0 6px;
            font-size: 0.9rem;
            color: #475569;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
            padding: 4px 0;
        }
        .site-footer {
            margin-top: 30px;
            padding: 20px 0 14px;
            border-top: 2px solid #e9edf4;
            text-align: center;
            font-size: 0.85rem;
            color: #64748b;
        }
        .site-footer .copyright {
            margin-top: 8px;
            font-weight: 400;
        }
        .last-update {
            display: inline-block;
            background: #eef2f9;
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 0.8rem;
            color: #475569;
            margin: 6px 0 12px;
        }
        .img-caption {
            font-size: 0.8rem;
            color: #64748b;
            text-align: center;
            margin-top: 4px;
        }
        .content-img-wrap {
            margin: 1.5rem 0;
            border-radius: 14px;
            overflow: hidden;
            background: #f1f5fb;
            padding: 8px;
        }
        .two-col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin: 1.2rem 0;
        }
        @media (max-width: 640px) {
            .two-col {
                grid-template-columns: 1fr;
            }
            .star-rating {
                font-size: 1.5rem;
            }
        }
        .section-divider {
            height: 2px;
            background: linear-gradient(to right, transparent, #e9edf4, transparent);
            margin: 2rem 0;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #1e4a7a;
            color: #fff;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s, visibility 0.3s, background 0.2s;
            z-index: 999;
        }
        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background: #e67e22;
            color: #fff;
            text-decoration: none;
        }
        @media (max-width: 600px) {
            .back-to-top {
                bottom: 16px;
                right: 16px;
                width: 38px;
                height: 38px;
                font-size: 1rem;
            }
        }
        .anchor-offset {
            scroll-margin-top: 20px;
        }