*,
        *::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, sans-serif;
            background: #f8f9fb;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #2a6f97;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #1d4f73;
            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 {
            line-height: 1.3;
            color: #0f1a2b;
            margin-top: 2rem;
            margin-bottom: 0.75rem;
            font-weight: 700;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 1rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 1.8rem;
            border-bottom: 3px solid #d6e4f0;
            padding-bottom: 0.3rem;
        }
        h3 {
            font-size: 1.35rem;
            color: #1a3149;
        }
        h4 {
            font-size: 1.1rem;
            color: #2a4a6a;
        }
        p {
            margin-bottom: 1.1rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            padding: 1.5rem 2rem 2.5rem;
            border-radius: 20px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
        }
        header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 0 0.8rem;
            border-bottom: 2px solid #e8edf2;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            background: linear-gradient(135deg, #1d4f73, #2a6f97);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo i {
            font-size: 2rem;
            -webkit-text-fill-color: #2a6f97;
            color: #2a6f97;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.85;
        }
        nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: wrap;
        }
        nav a {
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.95rem;
            color: #1e2a3a;
            transition: background 0.2s, color 0.2s;
        }
        nav a:hover {
            background: #e1ebf5;
            color: #0f1a2b;
            text-decoration: none;
        }
        nav a.active {
            background: #2a6f97;
            color: #fff;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.25rem 0.5rem;
            background: none;
            border: none;
            color: #1e2a3a;
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0.75rem 0 0.5rem;
            font-size: 0.9rem;
            color: #5a6e7e;
            width: 100%;
        }
        .breadcrumb li {
            margin: 0 0.25rem 0 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.4rem;
            color: #9aabb8;
        }
        .breadcrumb a {
            color: #2a6f97;
        }
        .hero-img {
            margin: 1.8rem 0 2.2rem;
            border-radius: 16px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
            background: #eef3f8;
            display: flex;
            justify-content: center;
        }
        .hero-img img {
            width: 100%;
            max-height: 440px;
            object-fit: cover;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        label {
            font-weight: 600;
            display: block;
            margin-bottom: 0.3rem;
            color: #1a3149;
        }
        input,
        textarea,
        select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1.5px solid #d6e0e8;
            border-radius: 10px;
            font-size: 1rem;
            font-family: inherit;
            background: #fafcfe;
            transition: border 0.2s, box-shadow 0.2s;
        }
        input:focus,
        textarea:focus {
            outline: none;
            border-color: #2a6f97;
            box-shadow: 0 0 0 3px rgba(42, 111, 151, 0.15);
        }
        textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            display: inline-block;
            padding: 0.7rem 2rem;
            border: none;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            background: #2a6f97;
            color: #fff;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .btn:hover {
            background: #1d4f73;
            transform: translateY(-1px);
        }
        .btn-secondary {
            background: #e1ebf5;
            color: #1e2a3a;
        }
        .btn-secondary:hover {
            background: #cbdae7;
        }
        .comment-item {
            padding: 1rem 1.2rem;
            background: #f5f8fc;
            border-radius: 12px;
            margin-bottom: 1rem;
            border-left: 4px solid #2a6f97;
        }
        .comment-item .meta {
            font-size: 0.85rem;
            color: #5a6e7e;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            margin-bottom: 0.4rem;
        }
        .comment-item .name {
            font-weight: 700;
            color: #1a3149;
        }
        .star-rating {
            display: flex;
            gap: 0.25rem;
            font-size: 1.3rem;
            color: #f0c040;
            cursor: pointer;
        }
        .star-rating i {
            transition: transform 0.15s;
        }
        .star-rating i:hover {
            transform: scale(1.2);
        }
        .rating-display {
            color: #f0c040;
            font-size: 1.1rem;
            letter-spacing: 2px;
        }
        friend-link {
            display: block;
            padding: 1.2rem 0 0.5rem;
            border-top: 2px solid #e8edf2;
            margin-top: 2.5rem;
            font-size: 0.95rem;
        }
        friend-link a {
            display: inline-block;
            margin: 0.25rem 1rem 0.25rem 0;
            padding: 0.3rem 0.8rem;
            background: #f0f4f9;
            border-radius: 20px;
            font-weight: 500;
        }
        friend-link a:hover {
            background: #dce6f0;
            text-decoration: none;
        }
        footer {
            text-align: center;
            padding: 1.8rem 0 1rem;
            color: #5a6e7e;
            font-size: 0.9rem;
            border-top: 2px solid #e8edf2;
            margin-top: 2rem;
        }
        footer .copyright {
            font-weight: 400;
        }
        @media (max-width: 768px) {
            body {
                padding: 0 0.5rem;
            }
            .container {
                padding: 1rem 1rem 2rem;
                border-radius: 12px;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            header {
                padding: 0.6rem 0;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .my-logo i {
                font-size: 1.5rem;
            }
            .hamburger {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #ffffff;
                padding: 0.8rem 0 0.4rem;
                border-top: 1px solid #e0e8f0;
                margin-top: 0.6rem;
            }
            #nav-toggle:checked~nav {
                display: flex;
            }
            nav a {
                padding: 0.6rem 1rem;
                border-radius: 8px;
                width: 100%;
            }
            .breadcrumb {
                font-size: 0.8rem;
                padding: 0.5rem 0;
            }
            .hero-img img {
                max-height: 220px;
            }
            .star-rating {
                font-size: 1.1rem;
            }
            friend-link a {
                display: block;
                margin: 0.3rem 0;
            }
        }
        @media (min-width: 769px) {
            #nav-toggle {
                display: none;
            }
            nav {
                display: flex !important;
            }
        }
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        @media (max-width: 768px) {
            .grid-2,
            .grid-3 {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
        }
        .highlight-box {
            background: #f0f7fe;
            border-left: 5px solid #2a6f97;
            padding: 1.2rem 1.6rem;
            border-radius: 10px;
            margin: 1.5rem 0;
        }
        .emoji-lg {
            font-size: 1.6rem;
            margin-right: 0.3rem;
        }
        .stat-badge {
            display: inline-block;
            background: #e1ebf5;
            padding: 0.2rem 1rem;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.9rem;
            color: #1d4f73;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.2rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 0.7rem 1rem;
            border: 1px solid #d6e0e8;
            text-align: left;
        }
        th {
            background: #eef3f8;
            font-weight: 700;
        }
        .section-divider {
            height: 2px;
            background: linear-gradient(90deg, #d6e4f0, transparent);
            margin: 2.2rem 0;
        }
        .small-note {
            font-size: 0.85rem;
            color: #5a6e7e;
        }