*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            color: #1e1e2a;
            background: #f5f7fc;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #2a5c8a;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover,
        a:focus {
            color: #c44536;
            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;
            color: #12121c;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.4rem;
        }
        h2 {
            font-size: 1.9rem;
            border-left: 5px solid #2a5c8a;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.5rem;
            color: #1f3a57;
        }
        h4 {
            font-size: 1.2rem;
            color: #2a4a6a;
        }
        p {
            margin-bottom: 1.2rem;
            color: #2c2c3a;
        }
        ul,
        ol {
            margin: 0.8rem 0 1.4rem 2rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(145deg, #0b1a2b, #1a2f44);
            color: #fff;
            padding: 0.6rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            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;
            gap: 0.8rem;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 700;
            color: #f0d7b0;
            letter-spacing: 1px;
            transition: opacity 0.25s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .my-logo i {
            color: #e8b87a;
            font-size: 2rem;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
            color: #fce6c4;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 300;
            color: #b8ccdd;
            display: block;
            letter-spacing: 0.5px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.2rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #dde6f0;
            padding: 0.55rem 1.1rem;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.95rem;
            transition: background 0.25s, color 0.25s;
            white-space: nowrap;
        }
        .main-nav a:hover,
        .main-nav a:focus {
            background: rgba(255, 255, 255, 0.12);
            color: #f0d7b0;
            text-decoration: none;
        }
        .main-nav a.active {
            background: #c44536;
            color: #fff;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #f0d7b0;
            font-size: 1.9rem;
            cursor: pointer;
            padding: 0.2rem 0.6rem;
            transition: transform 0.2s;
        }
        .hamburger:hover {
            transform: scale(1.05);
        }
        .breadcrumb {
            background: #eef2f7;
            padding: 0.7rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #dce3ec;
        }
        .breadcrumb ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            margin: 0;
            padding: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #7a8a9e;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #2a5c8a;
        }
        .breadcrumb .current {
            color: #4a4a5a;
            font-weight: 500;
        }
        .hero {
            background: linear-gradient(135deg, #121e2e, #1f3a57);
            color: #f0f4fa;
            padding: 2.8rem 0 2.2rem;
            margin-bottom: 2rem;
            border-radius: 0 0 40px 40px;
        }
        .hero h1 {
            color: #fce6c4;
            font-size: 2.6rem;
            margin-bottom: 0.4rem;
            border: none;
            padding-left: 0;
        }
        .hero p {
            color: #cbdae9;
            font-size: 1.15rem;
            max-width: 780px;
        }
        .hero .meta-info {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin-top: 1.2rem;
            font-size: 0.95rem;
            color: #b0c8de;
        }
        .hero .meta-info i {
            margin-right: 0.4rem;
            color: #e8b87a;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0 3rem;
        }
        .content-main {
            background: #fff;
            padding: 2.2rem 2.5rem;
            border-radius: 24px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.04);
        }
        .content-sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
            background: #fff;
            padding: 1.8rem 1.6rem;
            border-radius: 24px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.04);
        }
        .content-sidebar h3 {
            font-size: 1.3rem;
            margin-top: 0;
            border-bottom: 2px solid #eef2f7;
            padding-bottom: 0.6rem;
        }
        .content-sidebar ul {
            list-style: none;
            margin: 0.8rem 0 0;
            padding: 0;
        }
        .content-sidebar li {
            margin-bottom: 0.6rem;
        }
        .content-sidebar a {
            display: block;
            padding: 0.4rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .content-sidebar a:hover {
            background: #f0f4fa;
            text-decoration: none;
        }
        .feature-image-wrap {
            margin: 1.8rem 0 2.2rem;
            border-radius: 16px;
            overflow: hidden;
            background: #eef2f7;
        }
        .feature-image-wrap img {
            width: 100%;
            object-fit: cover;
        }
        .feature-image-wrap figcaption {
            padding: 0.8rem 1.2rem;
            font-size: 0.9rem;
            color: #4a5a6a;
            background: #f8faff;
            font-style: italic;
        }
        .search-block {
            background: #f0f4fa;
            padding: 1.6rem 2rem;
            border-radius: 20px;
            margin: 2rem 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem;
        }
        .search-block label {
            font-weight: 600;
            color: #1a2f44;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-block input[type="text"] {
            flex: 1 1 240px;
            padding: 0.8rem 1.2rem;
            border: 1px solid #ccd8e6;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border 0.25s, box-shadow 0.25s;
            min-width: 160px;
        }
        .search-block input[type="text"]:focus {
            border-color: #2a5c8a;
            box-shadow: 0 0 0 3px rgba(42, 92, 138, 0.15);
        }
        .search-block button {
            background: #2a5c8a;
            color: #fff;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            font-size: 1rem;
        }
        .search-block button:hover {
            background: #1a3f62;
            transform: scale(1.02);
        }
        .search-block button i {
            margin-right: 0.4rem;
        }
        .interaction-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 2.8rem 0 1.2rem;
            background: #f8faff;
            padding: 2rem;
            border-radius: 24px;
            border: 1px solid #e6ecf5;
        }
        .comment-box,
        .rating-box {
            background: #fff;
            padding: 1.6rem 1.8rem;
            border-radius: 18px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
        }
        .comment-box h3,
        .rating-box h3 {
            margin-top: 0;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .comment-box textarea {
            width: 100%;
            padding: 0.9rem 1rem;
            border: 1px solid #dce3ec;
            border-radius: 14px;
            font-family: inherit;
            font-size: 0.95rem;
            resize: vertical;
            min-height: 90px;
            outline: none;
            transition: border 0.25s;
        }
        .comment-box textarea:focus {
            border-color: #2a5c8a;
            box-shadow: 0 0 0 3px rgba(42, 92, 138, 0.08);
        }
        .comment-box input[type="text"] {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1px solid #dce3ec;
            border-radius: 40px;
            font-size: 0.95rem;
            outline: none;
            margin: 0.5rem 0 0.8rem;
        }
        .comment-box button,
        .rating-box button {
            background: #2a5c8a;
            color: #fff;
            border: none;
            padding: 0.65rem 1.8rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            font-size: 0.95rem;
        }
        .comment-box button:hover,
        .rating-box button:hover {
            background: #1a3f62;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            font-size: 2rem;
            color: #d0d8e4;
            cursor: pointer;
            margin: 0.6rem 0 1rem;
            transition: color 0.2s;
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: #f5b342;
        }
        .rating-stars i {
            transition: color 0.15s, transform 0.15s;
        }
        .rating-stars i:hover {
            transform: scale(1.15);
        }
        friend-link {
            display: block;
            background: #f0f4fa;
            padding: 1.4rem 1.8rem;
            border-radius: 20px;
            margin: 2rem 0 0.6rem;
            font-size: 0.95rem;
        }
        friend-link::before {
            content: "🔗 Friend Links";
            display: block;
            font-weight: 700;
            font-size: 1.1rem;
            color: #1a2f44;
            margin-bottom: 0.6rem;
        }
        friend-link a {
            display: inline-block;
            margin: 0.2rem 1.2rem 0.2rem 0;
            padding: 0.2rem 0;
        }
        friend-link a::after {
            content: "·";
            color: #8a9aae;
            margin-left: 0.8rem;
        }
        friend-link a:last-child::after {
            content: "";
        }
        .site-footer {
            background: #0f1a26;
            color: #b8ccdd;
            padding: 2.2rem 0 1.6rem;
            margin-top: 3rem;
            border-radius: 40px 40px 0 0;
        }
        .site-footer .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 1.5rem;
        }
        .site-footer .copyright {
            font-size: 0.9rem;
            color: #8aa2b8;
        }
        .site-footer .copyright strong {
            color: #dde6f0;
        }
        @media (max-width: 900px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .content-sidebar {
                position: static;
            }
            .interaction-section {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .content-main {
                padding: 1.6rem 1.2rem;
            }
        }
        @media (max-width: 720px) {
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #0b1a2b;
                padding: 1rem 0.6rem;
                border-radius: 0 0 20px 20px;
                gap: 0.3rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.6rem 1.2rem;
                width: 100%;
                border-radius: 12px;
            }
            .hamburger {
                display: block;
            }
            .header-inner {
                align-items: center;
            }
            .hero h1 {
                font-size: 1.7rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .search-block {
                flex-direction: column;
                align-items: stretch;
                padding: 1.2rem;
            }
            .search-block button {
                width: 100%;
            }
            .content-main {
                padding: 1.2rem 0.8rem;
            }
            .interaction-section {
                padding: 1.2rem;
            }
            .rating-stars {
                font-size: 1.8rem;
            }
            friend-link a {
                display: block;
                margin: 0.3rem 0;
            }
            friend-link a::after {
                content: "";
            }
            .site-footer .footer-inner {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 480px) {
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo i {
                font-size: 1.5rem;
            }
            .hero {
                padding: 1.8rem 0 1.6rem;
            }
            .hero h1 {
                font-size: 1.5rem;
            }
            h2 {
                font-size: 1.5rem;
                padding-left: 0.6rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            .container {
                padding: 0 12px;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
        }
        .text-muted {
            color: #5a6a7e;
            font-size: 0.92rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .highlight {
            background: #fcf1e0;
            padding: 0.1rem 0.3rem;
            border-radius: 4px;
            font-weight: 500;
        }
        .btn-outline {
            background: transparent;
            border: 2px solid #2a5c8a;
            color: #2a5c8a;
            padding: 0.5rem 1.4rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, color 0.2s;
        }
        .btn-outline:hover {
            background: #2a5c8a;
            color: #fff;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.2rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 0.7rem 0.8rem;
            text-align: left;
            border-bottom: 1px solid #e6ecf5;
        }
        th {
            background: #eef2f7;
            font-weight: 600;
            color: #1a2f44;
        }
        tr:hover td {
            background: #f8faff;
        }