*, *::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;
            background: #f5f7fa;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a { color: #b8860b; text-decoration: none; transition: color 0.2s; }
        a:hover { color: #8b6508; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; border-radius: 8px; }
        h1, h2, h3, h4 { font-weight: 600; line-height: 1.3; margin-top: 0; }
        .container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
        .site-header {
            background: #0f1a2b;
            color: #fff;
            padding: 16px 0;
            border-bottom: 4px solid #b8860b;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0,0,0,0.2);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: #f0d89e;
            letter-spacing: -0.5px;
            transition: opacity 0.2s;
        }
        .my-logo:hover { opacity: 0.85; text-decoration: none; color: #f0d89e; }
        .my-logo span { color: #fff; font-weight: 300; }
        .nav-list {
            list-style: none;
            display: flex;
            gap: 24px;
            align-items: center;
        }
        .nav-list li a {
            color: #cfd8e6;
            font-size: 0.95rem;
            font-weight: 500;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
        }
        .nav-list li a:hover { color: #f0d89e; border-bottom-color: #b8860b; text-decoration: none; }
        .hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 4px; }
        .hamburger span { display: block; width: 28px; height: 3px; background: #f0d89e; border-radius: 3px; transition: 0.3s; }
        .nav-toggle { display: none; }
        .nav-toggle:checked ~ .nav-wrapper .nav-list { display: flex; flex-direction: column; background: #0f1a2b; padding: 20px; position: absolute; top: 68px; left: 0; right: 0; border-bottom: 3px solid #b8860b; box-shadow: 0 8px 24px rgba(0,0,0,0.4); gap: 16px; }
        .nav-toggle:checked ~ .nav-wrapper .nav-list li a { font-size: 1.1rem; }
        .breadcrumb {
            background: #e9edf2;
            padding: 12px 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #d0d7e0;
        }
        .breadcrumb ul { list-style: none; display: flex; flex-wrap: wrap; gap: 8px 16px; }
        .breadcrumb li+li::before { content: "›"; margin-right: 12px; color: #7a8a9e; }
        .breadcrumb a { color: #3b4a5c; }
        .breadcrumb a:hover { color: #b8860b; }
        .breadcrumb .current { color: #1e2a3a; font-weight: 500; }
        .hero {
            background: linear-gradient(135deg, #0f1a2b 0%, #1e2f44 100%);
            color: #fff;
            padding: 48px 0 40px;
            margin-bottom: 32px;
        }
        .hero h1 { font-size: 2.4rem; margin-bottom: 12px; color: #f0d89e; }
        .hero p { font-size: 1.15rem; opacity: 0.9; max-width: 780px; }
        .hero .meta { margin-top: 18px; font-size: 0.95rem; color: #b0c4d8; display: flex; flex-wrap: wrap; gap: 20px; }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 32px 0;
        }
        @media (max-width: 820px) {
            .content-grid { grid-template-columns: 1fr; }
        }
        .article-body h2 {
            font-size: 1.8rem;
            margin: 40px 0 12px;
            color: #0f1a2b;
            border-left: 5px solid #b8860b;
            padding-left: 16px;
        }
        .article-body h3 {
            font-size: 1.3rem;
            margin: 32px 0 10px;
            color: #1e2f44;
        }
        .article-body h4 {
            font-size: 1.1rem;
            margin: 24px 0 8px;
            color: #2c3e55;
            font-weight: 600;
        }
        .article-body p { margin-bottom: 18px; }
        .article-body ul, .article-body ol { margin: 12px 0 20px 24px; }
        .article-body li { margin-bottom: 8px; }
        .article-body .highlight { background: #fcf3e0; padding: 2px 8px; border-radius: 4px; font-weight: 600; }
        .article-body .card {
            background: #fff;
            border-radius: 10px;
            padding: 24px;
            box-shadow: 0 4px 16px rgba(0,0,0,0.05);
            margin: 28px 0;
            border: 1px solid #e6ecf2;
        }
        .article-body .card h4 { margin-top: 0; }
        .article-body .interview {
            background: #eef4fa;
            border-left: 5px solid #b8860b;
            padding: 20px 24px;
            border-radius: 0 10px 10px 0;
            margin: 24px 0;
            font-style: italic;
        }
        .article-body .step-list { counter-reset: step; }
        .article-body .step-list li { counter-increment: step; margin-bottom: 18px; list-style: none; position: relative; padding-left: 44px; }
        .article-body .step-list li::before {
            content: counter(step);
            background: #b8860b;
            color: #fff;
            font-weight: 700;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            position: absolute;
            left: 0;
            top: 0;
            font-size: 0.9rem;
        }
        .img-wrapper {
            margin: 32px 0;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 24px rgba(0,0,0,0.08);
        }
        .img-wrapper figcaption { background: #f0f3f7; padding: 12px 18px; font-size: 0.9rem; color: #4a5a6e; }
        .sidebar {
            background: #fff;
            border-radius: 12px;
            padding: 24px;
            box-shadow: 0 4px 16px rgba(0,0,0,0.04);
            border: 1px solid #e6ecf2;
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        .sidebar h3 { font-size: 1.2rem; margin-bottom: 16px; color: #0f1a2b; border-bottom: 2px solid #b8860b; padding-bottom: 8px; }
        .sidebar ul { list-style: none; padding: 0; }
        .sidebar li { margin-bottom: 12px; }
        .sidebar li a { display: flex; align-items: center; gap: 10px; color: #2c3e55; }
        .sidebar li a i { color: #b8860b; width: 18px; }
        .sidebar li a:hover { color: #b8860b; }
        .search-section {
            background: #eef4fa;
            border-radius: 12px;
            padding: 28px 32px;
            margin: 40px 0;
        }
        .search-form { display: flex; gap: 12px; flex-wrap: wrap; }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 14px 18px;
            border: 2px solid #cfd8e6;
            border-radius: 8px;
            font-size: 1rem;
            transition: 0.2s;
        }
        .search-form input[type="text"]:focus { border-color: #b8860b; outline: none; }
        .search-form button {
            background: #b8860b;
            color: #fff;
            border: none;
            padding: 14px 28px;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover { background: #9e7209; }
        .interaction-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 40px 0;
        }
        @media (max-width: 640px) {
            .interaction-section { grid-template-columns: 1fr; }
        }
        .comment-box, .rating-box {
            background: #fff;
            border-radius: 12px;
            padding: 24px;
            border: 1px solid #e6ecf2;
            box-shadow: 0 4px 12px rgba(0,0,0,0.03);
        }
        .comment-box h3, .rating-box h3 { margin-bottom: 16px; font-size: 1.2rem; color: #0f1a2b; }
        .comment-box textarea {
            width: 100%;
            padding: 14px;
            border: 2px solid #cfd8e6;
            border-radius: 8px;
            font-size: 0.95rem;
            resize: vertical;
            min-height: 100px;
            font-family: inherit;
            transition: 0.2s;
        }
        .comment-box textarea:focus { border-color: #b8860b; outline: none; }
        .comment-box input[type="text"] {
            width: 100%;
            padding: 12px 14px;
            border: 2px solid #cfd8e6;
            border-radius: 8px;
            font-size: 0.95rem;
            margin: 8px 0 12px;
            transition: 0.2s;
        }
        .comment-box input[type="text"]:focus { border-color: #b8860b; outline: none; }
        .comment-box button, .rating-box button {
            background: #0f1a2b;
            color: #fff;
            border: none;
            padding: 12px 24px;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            margin-top: 8px;
        }
        .comment-box button:hover, .rating-box button:hover { background: #1e2f44; }
        .star-rating { display: flex; flex-direction: row-reverse; justify-content: flex-end; gap: 4px; margin: 12px 0; }
        .star-rating input { display: none; }
        .star-rating label { font-size: 2rem; color: #d0d7e0; cursor: pointer; transition: 0.15s; }
        .star-rating input:checked ~ label, .star-rating label:hover, .star-rating label:hover ~ label { color: #f5b342; }
        .site-footer {
            background: #0f1a2b;
            color: #b0c4d8;
            padding: 40px 0 24px;
            margin-top: 48px;
            border-top: 4px solid #b8860b;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 40px;
            margin-bottom: 24px;
        }
        @media (max-width: 640px) {
            .footer-grid { grid-template-columns: 1fr; }
        }
        .footer-grid h4 { color: #f0d89e; margin-bottom: 12px; font-size: 1.1rem; }
        .footer-grid a { color: #b0c4d8; }
        .footer-grid a:hover { color: #f0d89e; }
        friend-link {
            display: block;
            background: #1a2b3e;
            padding: 18px 20px;
            border-radius: 10px;
            margin: 12px 0;
            font-size: 0.95rem;
            line-height: 1.8;
        }
        friend-link a { color: #c9d8e8; margin: 0 6px; }
        friend-link a:hover { color: #f0d89e; }
        .copyright { text-align: center; padding-top: 20px; border-top: 1px solid #2a3d52; font-size: 0.9rem; color: #7a8a9e; }
        .copyright strong { color: #b0c4d8; }
        .back-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #b8860b;
            color: #fff;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            box-shadow: 0 4px 16px rgba(0,0,0,0.2);
            transition: 0.2s;
            z-index: 999;
            border: none;
            cursor: pointer;
        }
        .back-top:hover { background: #9e7209; transform: translateY(-3px); }
        @media (max-width: 768px) {
            .hamburger { display: flex; }
            .nav-wrapper .nav-list { display: none; }
            .hero h1 { font-size: 1.8rem; }
            .header-inner { align-items: center; }
            .my-logo { font-size: 1.4rem; }
            .article-body h2 { font-size: 1.4rem; }
            .search-form { flex-direction: column; }
        }
        @media (min-width: 769px) {
            .nav-wrapper .nav-list { display: flex !important; }
            .nav-toggle { display: none !important; }
        }
        .star-rating label i { pointer-events: none; }
        .btn-icon { background: none; border: none; cursor: pointer; }