* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            background: #f5f7fc;
            color: #1e293b;
            line-height: 1.7;
            font-size: 16px;
            scroll-behavior: smooth;
        }
        a {
            color: #0a6e5e;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #064c41;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 600;
            line-height: 1.3;
            margin-top: 1.6em;
            margin-bottom: 0.6em;
            color: #0f2b3d;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.4em;
        }
        h2 {
            font-size: 1.9rem;
            border-left: 5px solid #0a6e5e;
            padding-left: 18px;
        }
        h3 {
            font-size: 1.5rem;
        }
        h4 {
            font-size: 1.25rem;
        }
        p {
            margin-bottom: 1.2em;
            word-spacing: 0.5px;
        }
        ul,
        ol {
            margin: 0.8em 0 1.2em 1.8em;
        }
        li {
            margin-bottom: 0.4em;
        }
        strong,
        b {
            font-weight: 700;
            color: #0b3b2f;
        }
        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #0b3b2f 0%, #1a6b5a 100%);
            color: #fff;
            padding: 0 0 4px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 14px 20px;
            max-width: 1180px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #ffe9a7;
            text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.2);
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.02);
            color: #ffdd7e;
            text-decoration: none;
        }
        .my-logo i {
            margin-right: 8px;
            color: #ffd166;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 2rem;
            cursor: pointer;
            padding: 4px 10px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.15);
        }
        nav {
            display: flex;
            gap: 8px 16px;
            flex-wrap: wrap;
            align-items: center;
        }
        nav a {
            color: #e0f2ec;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 30px;
            transition: all 0.2s;
            font-size: 0.95rem;
        }
        nav a:hover {
            background: rgba(255, 255, 255, 0.2);
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
        }
        nav a.active {
            background: #ffd166;
            color: #0b3b2f;
        }
        .breadcrumb-wrap {
            background: #e8edf5;
            padding: 10px 0;
            border-bottom: 1px solid #d0d9e6;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            margin: 0;
            padding: 0;
            font-size: 0.9rem;
        }
        .breadcrumb li {
            margin: 0 4px 0 0;
            display: flex;
            align-items: center;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 8px;
            color: #6b7a8f;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #0a6e5e;
        }
        .breadcrumb .current {
            color: #4a5b6e;
            font-weight: 500;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 30px 0 50px;
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 24px 20px;
            margin-bottom: 28px;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.05);
            border: 1px solid #e9edf4;
        }
        .sidebar-card h3 {
            font-size: 1.3rem;
            margin-top: 0;
            border-bottom: 2px solid #0a6e5e;
            padding-bottom: 10px;
            margin-bottom: 16px;
        }
        .sidebar-card ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .sidebar-card li {
            margin-bottom: 10px;
        }
        .sidebar-card a {
            display: block;
            padding: 6px 0;
            border-bottom: 1px dotted #dce3ed;
            font-size: 0.95rem;
        }
        .sidebar-card a:hover {
            padding-left: 6px;
        }
        .featured-image {
            margin: 28px 0 32px;
            border-radius: 16px;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.08);
        }
        .emoji-big {
            font-size: 1.8rem;
            margin-right: 6px;
        }
        .highlight-box {
            background: #e2f0ec;
            border-left: 6px solid #0a6e5e;
            padding: 20px 26px;
            border-radius: 12px;
            margin: 24px 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .tip-icon {
            color: #f59e0b;
        }
        .search-section {
            background: #fff;
            border-radius: 16px;
            padding: 30px 28px;
            margin: 40px 0;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #e9edf4;
        }
        .search-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .search-form input {
            flex: 1;
            min-width: 200px;
            padding: 14px 20px;
            border: 2px solid #dce3ed;
            border-radius: 50px;
            font-size: 1rem;
            outline: none;
            transition: border 0.2s;
        }
        .search-form input:focus {
            border-color: #0a6e5e;
        }
        .search-form button {
            background: #0a6e5e;
            color: #fff;
            border: none;
            padding: 14px 34px;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .search-form button:hover {
            background: #064c41;
            transform: scale(1.02);
        }
        .comment-section,
        .rating-section {
            background: #fff;
            border-radius: 16px;
            padding: 30px 28px;
            margin: 30px 0;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #e9edf4;
        }
        .comment-section h2,
        .rating-section h2 {
            margin-top: 0;
            border-left-color: #f59e0b;
        }
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 14px 18px;
            border: 2px solid #dce3ed;
            border-radius: 12px;
            font-size: 1rem;
            outline: none;
            transition: border 0.2s;
            margin-bottom: 14px;
            font-family: inherit;
        }
        .comment-form textarea:focus,
        .comment-form input:focus {
            border-color: #0a6e5e;
        }
        .comment-form textarea {
            min-height: 110px;
            resize: vertical;
        }
        .comment-form button,
        .rating-form button {
            background: #0a6e5e;
            color: #fff;
            border: none;
            padding: 14px 36px;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .comment-form button:hover,
        .rating-form button:hover {
            background: #064c41;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            gap: 8px;
            font-size: 2.2rem;
            color: #d1d9e6;
            cursor: pointer;
            margin: 8px 0 18px;
        }
        .star-rating i {
            transition: color 0.2s, transform 0.1s;
        }
        .star-rating i:hover,
        .star-rating i.active {
            color: #f59e0b;
            transform: scale(1.1);
        }
        .rating-form input[type="number"] {
            display: none;
        }
        footer {
            background: #0b2d24;
            color: #d0e2db;
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 30px;
        }
        footer h4 {
            color: #ffe9a7;
            margin-top: 0;
            font-size: 1.2rem;
        }
        footer a {
            color: #b3d6cc;
        }
        footer a:hover {
            color: #ffd166;
        }
        .friend-link {
            display: block;
            padding: 6px 0;
            border-bottom: 1px dotted #2e5a4e;
        }
        .friend-link:hover {
            padding-left: 8px;
        }
        .copyright {
            grid-column: 1 / -1;
            border-top: 1px solid #2e5a4e;
            padding-top: 24px;
            margin-top: 20px;
            text-align: center;
            font-size: 0.9rem;
        }
        @media (max-width: 900px) {
            .main-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .sidebar-card {
                margin-bottom: 0;
            }
            footer .container {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 700px) {
            .hamburger {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding: 12px 0 6px;
                gap: 4px;
            }
            nav.open {
                display: flex;
            }
            nav a {
                padding: 12px 16px;
                border-radius: 8px;
            }
            .header-inner {
                padding: 10px 16px;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            footer .container {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
            }
            .star-rating {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .comment-section,
            .rating-section,
            .search-section {
                padding: 20px 16px;
            }
        }
        .last-updated {
            display: inline-block;
            background: #e2f0ec;
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.9rem;
            color: #0b3b2f;
            margin-bottom: 18px;
        }
        .last-updated i {
            margin-right: 6px;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 20px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
        }
        th,
        td {
            padding: 12px 16px;
            text-align: left;
            border-bottom: 1px solid #e9edf4;
        }
        th {
            background: #0b3b2f;
            color: #fff;
            font-weight: 600;
        }
        tr:last-child td {
            border-bottom: none;
        }
        tr:hover td {
            background: #f0f7f4;
        }
        .btn-back-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #0a6e5e;
            color: #fff;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
            transition: background 0.2s, transform 0.2s;
            z-index: 999;
            border: none;
            cursor: pointer;
        }
        .btn-back-top:hover {
            background: #064c41;
            transform: translateY(-4px);
        }
        @media (max-width: 600px) {
            .btn-back-top {
                width: 42px;
                height: 42px;
                font-size: 1.2rem;
                bottom: 18px;
                right: 18px;
            }
        }