*,
        *::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: #fafafc;
            color: #1e1e2a;
            line-height: 1.7;
            padding: 0 16px;
            max-width: 1280px;
            margin: 0 auto;
        }
        a {
            color: #0055aa;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #e63946;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        h1,
        h2,
        h3,
        h4 {
            line-height: 1.3;
            color: #0b1d2e;
            margin-top: 1.6em;
            margin-bottom: 0.4em;
        }
        h1 {
            font-size: 2.2rem;
            border-left: 6px solid #e63946;
            padding-left: 18px;
            margin-top: 0.6em;
        }
        h2 {
            font-size: 1.7rem;
            border-bottom: 2px solid #e0e4ea;
            padding-bottom: 6px;
        }
        h3 {
            font-size: 1.3rem;
            color: #16344d;
        }
        h4 {
            font-size: 1.1rem;
            color: #2a4a66;
        }
        p {
            margin-bottom: 1.2em;
        }
        ul,
        ol {
            margin: 0.8em 0 1.4em 1.8em;
        }
        li {
            margin-bottom: 0.4em;
        }
        hr {
            border: 0;
            height: 2px;
            background: linear-gradient(90deg, #e63946, #f4a261, #e63946);
            margin: 2.4em 0;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 18px 0 10px;
            border-bottom: 1px solid #dce1e8;
            position: relative;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            background: linear-gradient(135deg, #0b1d2e, #e63946);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            text-decoration: none;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.85;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            -webkit-text-fill-color: #5a6a7a;
            display: block;
            letter-spacing: 1.2px;
        }
        .main-nav {
            display: flex;
            gap: 8px 18px;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            font-weight: 500;
            padding: 6px 8px;
            border-radius: 6px;
            font-size: 0.95rem;
            color: #1e2e3e;
        }
        .main-nav a:hover {
            background: #eef2f7;
            text-decoration: none;
            color: #e63946;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: #1e2e3e;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
        }
        .nav-toggle:hover {
            background: #eef2f7;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            font-size: 0.85rem;
            padding: 12px 0 4px;
            color: #5a6a7a;
            list-style: none;
            margin: 0;
        }
        .breadcrumb li {
            display: inline;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 8px;
            color: #b0b8c4;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #0055aa;
        }
        .hero-img-wrap {
            margin: 24px 0 32px;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.08);
            position: relative;
        }
        .hero-img-wrap img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .hero-img-wrap .img-caption {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(11, 29, 46, 0.72);
            color: #fff;
            padding: 12px 20px;
            font-size: 0.9rem;
            backdrop-filter: blur(4px);
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 30px 0;
        }
        .content-main {
            min-width: 0;
        }
        .content-sidebar {
            position: sticky;
            top: 24px;
            align-self: start;
            background: #f4f6fa;
            border-radius: 16px;
            padding: 24px 20px;
            border: 1px solid #e4e9f0;
        }
        .content-sidebar h3 {
            margin-top: 0;
            font-size: 1.15rem;
            border-bottom: 2px solid #e63946;
            padding-bottom: 8px;
        }
        .content-sidebar ul {
            list-style: none;
            margin: 12px 0 0;
            padding: 0;
        }
        .content-sidebar li {
            padding: 6px 0;
            border-bottom: 1px solid #e4e9f0;
        }
        .content-sidebar li a {
            font-weight: 500;
        }
        .price-table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0 28px;
            font-size: 0.95rem;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
        }
        .price-table th {
            background: #0b1d2e;
            color: #fff;
            padding: 14px 16px;
            text-align: left;
            font-weight: 600;
        }
        .price-table td {
            padding: 12px 16px;
            border-bottom: 1px solid #e4e9f0;
            background: #fff;
        }
        .price-table tr:last-child td {
            border-bottom: 0;
        }
        .price-table tr:hover td {
            background: #f4f8ff;
        }
        .price-table .cat-badge {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            background: #e63946;
            color: #fff;
        }
        .price-table .cat-badge.cat2 {
            background: #f4a261;
        }
        .price-table .cat-badge.cat3 {
            background: #2a9d8f;
        }
        .price-table .cat-badge.cat4 {
            background: #264653;
        }
        .search-box {
            display: flex;
            gap: 8px;
            margin: 24px 0 20px;
            max-width: 620px;
        }
        .search-box input {
            flex: 1;
            padding: 12px 18px;
            border: 2px solid #dce1e8;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border 0.25s;
        }
        .search-box input:focus {
            border-color: #e63946;
        }
        .search-box button {
            background: #e63946;
            color: #fff;
            border: none;
            border-radius: 40px;
            padding: 0 26px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .search-box button:hover {
            background: #c1121f;
            transform: scale(1.02);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 32px 0 20px;
        }
        .feedback-card {
            background: #fff;
            border: 1px solid #e4e9f0;
            border-radius: 16px;
            padding: 24px 22px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
        }
        .feedback-card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 12px;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 10px 14px;
            border: 2px solid #dce1e8;
            border-radius: 10px;
            font-size: 0.95rem;
            font-family: inherit;
            outline: none;
            transition: border 0.2s;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: #e63946;
        }
        .feedback-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .feedback-card .btn-submit {
            background: #0b1d2e;
            color: #fff;
            border: none;
            padding: 12px 20px;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
        }
        .feedback-card .btn-submit:hover {
            background: #e63946;
        }
        .star-rating {
            display: flex;
            gap: 4px;
            font-size: 1.5rem;
            color: #f4a261;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            color: #dce1e8;
            transition: color 0.15s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f4a261;
        }
        friend-link {
            display: block;
            padding: 24px 0 12px;
        }
        friend-link .friend-head {
            font-size: 1.1rem;
            font-weight: 700;
            color: #0b1d2e;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        friend-link .friend-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
        }
        friend-link .friend-grid a {
            font-size: 0.92rem;
            padding: 4px 0;
            border-bottom: 1px dotted #ccc;
        }
        .site-footer {
            border-top: 2px solid #e4e9f0;
            padding: 28px 0 20px;
            margin-top: 40px;
            text-align: center;
            font-size: 0.9rem;
            color: #5a6a7a;
        }
        .site-footer .copyright {
            font-weight: 500;
            color: #1e2e3e;
        }
        @media (max-width: 860px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .content-sidebar {
                position: static;
                order: 2;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                padding: 12px 0 8px;
                gap: 6px;
                border-top: 1px solid #dce1e8;
                margin-top: 10px;
            }
            .main-nav.open {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .price-table {
                font-size: 0.85rem;
            }
            .price-table th,
            .price-table td {
                padding: 8px 10px;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 10px;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .search-box {
                flex-direction: column;
            }
            .search-box button {
                padding: 12px;
            }
            .hero-img-wrap .img-caption {
                font-size: 0.75rem;
                padding: 8px 12px;
            }
            .feedback-card {
                padding: 16px;
            }
        }
        .highlight-box {
            background: #fff9f0;
            border-left: 4px solid #f4a261;
            padding: 16px 20px;
            border-radius: 0 12px 12px 0;
            margin: 20px 0;
        }
        .insight-box {
            background: #eef6ff;
            border-radius: 12px;
            padding: 18px 22px;
            margin: 18px 0;
            border: 1px solid #d0e2f2;
        }
        .tag {
            display: inline-block;
            background: #e63946;
            color: #fff;
            padding: 2px 14px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.5px;
        }
        .tag.green {
            background: #2a9d8f;
        }
        .tag.blue {
            background: #264653;
        }
        .emoji-lg {
            font-size: 1.3rem;
        }
        .text-small {
            font-size: 0.88rem;
            color: #5a6a7a;
        }
        .update-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #e8edf4;
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #1e2e3e;
            font-weight: 500;
        }