* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f8f9fc;
            color: #1a1d23;
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: #b8860b;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #8b6400;
            text-decoration: underline;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #0b1a2e, #1a2f44);
            color: #fff;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: 1px;
            color: #f5d742;
            text-shadow: 0 2px 8px rgba(245, 215, 66, 0.3);
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: #ffea6a;
        }
        .my-logo span {
            color: #fff;
            font-weight: 300;
        }
        .nav-toggle {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #fff;
            cursor: pointer;
            padding: 4px 12px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        nav {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        nav a {
            color: #e0e7f0;
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 0.95rem;
            font-weight: 500;
            transition: all 0.25s;
        }
        nav a:hover {
            background: rgba(255, 215, 0, 0.15);
            color: #f5d742;
            text-decoration: none;
        }
        .nav-search {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 30px;
            padding: 6px 16px 6px 20px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-search input {
            background: transparent;
            border: none;
            color: #fff;
            outline: none;
            font-size: 0.9rem;
            min-width: 120px;
        }
        .nav-search input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .nav-search button {
            background: none;
            border: none;
            color: #f5d742;
            cursor: pointer;
            font-size: 1rem;
        }
        .breadcrumb {
            background: #eef1f5;
            padding: 12px 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #dce1e8;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 6px;
            color: #888;
        }
        .breadcrumb a {
            color: #2a4b7a;
        }
        .breadcrumb .active {
            color: #666;
            font-weight: 500;
        }
        main {
            padding: 40px 0 60px;
        }
        .article-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media(max-width:992px) {
            .article-wrapper {
                grid-template-columns: 1fr;
            }
        }
        .content {
            background: #fff;
            border-radius: 20px;
            padding: 40px 44px;
            box-shadow: 0 2px 30px rgba(0, 0, 0, 0.04);
        }
        @media(max-width:640px) {
            .content {
                padding: 20px 16px;
            }
        }
        .content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #0b1a2e;
            margin-bottom: 12px;
            line-height: 1.2;
        }
        .content h1 i {
            color: #b8860b;
        }
        .content .meta {
            color: #6b7280;
            font-size: 0.95rem;
            margin-bottom: 32px;
            border-bottom: 1px solid #eef1f5;
            padding-bottom: 16px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .content h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #0f2840;
            margin-top: 48px;
            margin-bottom: 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid #f5d742;
        }
        .content h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #1a3a5a;
            margin-top: 32px;
            margin-bottom: 12px;
        }
        .content h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #2a4b7a;
            margin-top: 24px;
            margin-bottom: 8px;
        }
        .content p {
            margin-bottom: 18px;
            font-size: 1.05rem;
        }
        .content ul,
        .content ol {
            margin: 12px 0 20px 24px;
        }
        .content li {
            margin-bottom: 8px;
            font-size: 1.05rem;
        }
        .content .highlight {
            background: #fef9e7;
            border-left: 4px solid #f5d742;
            padding: 16px 20px;
            border-radius: 8px;
            margin: 24px 0;
        }
        .content .highlight i {
            color: #b8860b;
            margin-right: 8px;
        }
        .content img {
            max-width: 100%;
            height: auto;
            border-radius: 16px;
            margin: 24px 0 8px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        }
        .content .img-caption {
            font-size: 0.9rem;
            color: #6b7280;
            text-align: center;
            margin-bottom: 24px;
        }
        .content .btn-link {
            display: inline-block;
            background: #b8860b;
            color: #fff;
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            transition: background 0.2s;
        }
        .content .btn-link:hover {
            background: #8b6400;
            text-decoration: none;
            color: #fff;
        }
        .content .stat-box {
            background: #f0f4fa;
            border-radius: 12px;
            padding: 20px 24px;
            margin: 20px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: space-around;
            text-align: center;
        }
        .content .stat-box .stat-item {
            flex: 1 1 120px;
        }
        .content .stat-box .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: #b8860b;
        }
        .content .stat-box .stat-label {
            font-size: 0.9rem;
            color: #4b5563;
        }
        .sidebar {
            background: #fff;
            border-radius: 20px;
            padding: 28px 24px;
            box-shadow: 0 2px 30px rgba(0, 0, 0, 0.04);
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        .sidebar h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #0b1a2e;
            margin-bottom: 16px;
            border-bottom: 2px solid #f5d742;
            padding-bottom: 8px;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
        }
        .sidebar li {
            margin-bottom: 10px;
        }
        .sidebar a {
            display: block;
            padding: 8px 12px;
            background: #f8f9fc;
            border-radius: 10px;
            transition: background 0.2s, transform 0.15s;
            font-weight: 500;
        }
        .sidebar a:hover {
            background: #fef9e7;
            transform: translateX(4px);
            text-decoration: none;
        }
        .function-section {
            margin-top: 48px;
            padding-top: 32px;
            border-top: 2px solid #eef1f5;
        }
        .function-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 24px;
            margin-top: 20px;
        }
        @media(max-width:768px) {
            .function-grid {
                grid-template-columns: 1fr;
            }
        }
        .func-card {
            background: #f8f9fc;
            border-radius: 16px;
            padding: 24px;
            transition: box-shadow 0.25s;
        }
        .func-card:hover {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }
        .func-card h4 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #0b1a2e;
        }
        .func-card h4 i {
            color: #b8860b;
            margin-right: 8px;
        }
        .func-card input,
        .func-card textarea,
        .func-card select {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid #dce1e8;
            border-radius: 10px;
            font-size: 0.95rem;
            background: #fff;
            transition: border 0.2s;
            margin-bottom: 12px;
            font-family: inherit;
        }
        .func-card input:focus,
        .func-card textarea:focus,
        .func-card select:focus {
            border-color: #b8860b;
            outline: none;
            box-shadow: 0 0 0 3px rgba(184, 134, 11, 0.12);
        }
        .func-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .func-card .btn {
            background: #b8860b;
            color: #fff;
            border: none;
            padding: 10px 24px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            font-size: 0.95rem;
        }
        .func-card .btn:hover {
            background: #8b6400;
            transform: scale(0.98);
        }
        .func-card .btn i {
            margin-right: 6px;
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.6rem;
            cursor: pointer;
            margin-bottom: 12px;
        }
        .star-rating i {
            color: #d1d5db;
            transition: color 0.2s, transform 0.15s;
        }
        .star-rating i.active,
        .star-rating i:hover {
            color: #f5b342;
        }
        .star-rating i:hover {
            transform: scale(1.2);
        }
        footer {
            background: #0b1a2e;
            color: #c8d0dc;
            padding: 40px 0 20px;
        }
        footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        @media(max-width:768px) {
            footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        footer h4 {
            color: #f5d742;
            font-size: 1.1rem;
            margin-bottom: 12px;
        }
        footer a {
            color: #a8b8d0;
        }
        footer a:hover {
            color: #f5d742;
        }
        footer .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 8px;
        }
        footer .friend-links a {
            background: rgba(255, 255, 255, 0.06);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.9rem;
            transition: background 0.2s;
        }
        footer .friend-links a:hover {
            background: rgba(245, 215, 66, 0.12);
            text-decoration: none;
        }
        footer .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            text-align: center;
            font-size: 0.9rem;
            color: #8899b0;
        }
        footer .copyright strong {
            color: #f5d742;
        }
        @media(max-width:768px) {
            .nav-toggle {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 6px;
                padding: 16px 0 8px;
                border-top: 1px solid rgba(255, 255, 255, 0.08);
                margin-top: 12px;
            }
            nav.open {
                display: flex;
            }
            nav a {
                padding: 10px 16px;
                border-radius: 10px;
            }
            .nav-search {
                width: 100%;
                margin-top: 6px;
            }
            .nav-search input {
                flex: 1;
                min-width: 0;
            }
            .content h1 {
                font-size: 2rem;
            }
            .content h2 {
                font-size: 1.5rem;
            }
            .content h3 {
                font-size: 1.25rem;
            }
        }
        @media(max-width:480px) {
            .container {
                padding: 0 12px;
            }
            .content {
                padding: 16px 12px;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .content h1 {
                font-size: 1.6rem;
            }
        }
        .text-small {
            font-size: 0.9rem;
            color: #6b7280;
        }
        .mt-8 {
            margin-top: 8px;
        }
        .mb-8 {
            margin-bottom: 8px;
        }
        .flex {
            display: flex;
        }
        .gap-8 {
            gap: 8px;
        }
        .items-center {
            align-items: center;
        }