*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, Roboto, 'Helvetica Neue', sans-serif;
            background: #f5f7fa;
            color: #1e293b;
            line-height: 1.7;
        }
        a {
            color: #0f3b5e;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #d97706;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0b1f2e 0%, #1a3a4f 100%);
            color: #fff;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            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: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #facc15, #f97316);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 0 30px rgba(250, 204, 21, 0.2);
        }
        .my-logo i {
            margin-right: 8px;
            -webkit-text-fill-color: #facc15;
        }
        .my-logo:hover {
            opacity: 0.9;
        }
        .nav-list {
            display: flex;
            gap: 8px 16px;
            list-style: none;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-list li a {
            color: #e2e8f0;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 40px;
            transition: background 0.25s, color 0.25s;
            font-size: 0.95rem;
        }
        .nav-list li a:hover {
            background: rgba(250, 204, 21, 0.15);
            color: #facc15;
        }
        .nav-list li a i {
            margin-right: 6px;
            font-size: 0.85rem;
        }
        .hamburger {
            display: none;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-mobile {
            display: none;
            width: 100%;
            margin-top: 14px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 14px;
        }
        .nav-mobile.open {
            display: block;
        }
        .nav-mobile .nav-list {
            flex-direction: column;
            align-items: flex-start;
            gap: 4px;
        }
        .nav-mobile .nav-list li a {
            display: block;
            width: 100%;
            padding: 10px 12px;
            border-radius: 8px;
        }
        .breadcrumb {
            background: #e9edf2;
            padding: 12px 0;
            font-size: 0.9rem;
        }
        .breadcrumb ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            align-items: center;
        }
        .breadcrumb ul li+li::before {
            content: "›";
            margin-right: 12px;
            color: #64748b;
        }
        .breadcrumb a {
            color: #0f3b5e;
        }
        .breadcrumb .current {
            color: #d97706;
            font-weight: 600;
        }
        .page-wrap {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0;
        }
        .content-primary {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 110px;
            align-self: start;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            color: #0b1f2e;
        }
        h1 i {
            color: #f97316;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin: 48px 0 16px 0;
            padding-bottom: 8px;
            border-bottom: 4px solid #facc15;
            color: #0b1f2e;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin: 32px 0 12px 0;
            color: #1a3a4f;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin: 24px 0 8px 0;
            color: #334155;
        }
        p {
            margin-bottom: 16px;
        }
        .lead {
            font-size: 1.2rem;
            color: #334155;
            border-left: 4px solid #facc15;
            padding-left: 20px;
            margin-bottom: 28px;
        }
        .tip-box {
            background: #fef9e7;
            border-left: 6px solid #f97316;
            padding: 20px 24px;
            border-radius: 12px;
            margin: 24px 0;
        }
        .tip-box i {
            color: #f97316;
            margin-right: 10px;
        }
        .pro-box {
            background: #eef2ff;
            border-left: 6px solid #3b82f6;
            padding: 20px 24px;
            border-radius: 12px;
            margin: 24px 0;
        }
        .pro-box i {
            color: #3b82f6;
            margin-right: 10px;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 16px;
            margin: 24px 0;
        }
        .stat-card {
            background: #fff;
            border-radius: 16px;
            padding: 24px 16px;
            text-align: center;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.10);
        }
        .stat-card .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #f97316;
        }
        .stat-card .label {
            font-size: 0.95rem;
            color: #64748b;
            margin-top: 4px;
        }
        .feature-img {
            margin: 32px 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.10);
        }
        .feature-img figcaption {
            background: #f1f5f9;
            padding: 12px 20px;
            font-size: 0.9rem;
            color: #475569;
            font-style: italic;
        }
        .search-block {
            background: #fff;
            border-radius: 16px;
            padding: 24px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            margin: 32px 0;
        }
        .search-block form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .search-block input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 14px 18px;
            border: 2px solid #e2e8f0;
            border-radius: 40px;
            font-size: 1rem;
            transition: border 0.2s;
        }
        .search-block input[type="text"]:focus {
            outline: none;
            border-color: #f97316;
        }
        .search-block button {
            background: #f97316;
            color: #fff;
            border: none;
            padding: 14px 32px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
        }
        .search-block button:hover {
            background: #ea580c;
            transform: scale(1.02);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 32px 0;
        }
        .feedback-card {
            background: #fff;
            border-radius: 16px;
            padding: 24px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
        }
        .feedback-card h3 {
            margin-top: 0;
            border-bottom: 2px solid #f1f5f9;
            padding-bottom: 12px;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 12px 16px;
            border: 2px solid #e2e8f0;
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: inherit;
            transition: border 0.2s;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            outline: none;
            border-color: #f97316;
        }
        .feedback-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .feedback-card button {
            background: #0f3b5e;
            color: #fff;
            border: none;
            padding: 14px 24px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
        }
        .feedback-card button:hover {
            background: #1a3a4f;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            gap: 4px;
            font-size: 1.8rem;
            color: #facc15;
            cursor: pointer;
            user-select: none;
        }
        .star-rating i {
            transition: transform 0.15s;
        }
        .star-rating i:hover {
            transform: scale(1.2);
        }
        .star-rating input {
            display: none;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 24px;
            margin-bottom: 24px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
        }
        .sidebar-card h3 {
            margin-top: 0;
            font-size: 1.2rem;
            border-bottom: 2px solid #f1f5f9;
            padding-bottom: 10px;
        }
        .sidebar-card ul {
            list-style: none;
            margin-top: 12px;
        }
        .sidebar-card ul li {
            padding: 8px 0;
            border-bottom: 1px solid #f1f5f9;
        }
        .sidebar-card ul li:last-child {
            border-bottom: none;
        }
        .sidebar-card ul li a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 500;
        }
        .sidebar-card ul li a i {
            color: #f97316;
            width: 20px;
            text-align: center;
        }
        .site-footer {
            background: #0b1f2e;
            color: #cbd5e1;
            padding: 48px 0 24px;
            margin-top: 48px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .site-footer h4 {
            color: #facc15;
            margin-bottom: 16px;
        }
        .site-footer a {
            color: #94a3b8;
        }
        .site-footer a:hover {
            color: #facc15;
        }
        .site-footer .copy {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            text-align: center;
            font-size: 0.9rem;
        }
        friend-link {
            display: block;
            margin-top: 12px;
            font-style: normal;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
            padding: 4px 12px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 20px;
            font-size: 0.9rem;
        }
        friend-link a:hover {
            background: rgba(250, 204, 21, 0.12);
        }
        .last-update {
            display: inline-block;
            background: #f1f5f9;
            padding: 4px 16px;
            border-radius: 40px;
            font-size: 0.85rem;
            color: #475569;
            margin-bottom: 16px;
        }
        @media (max-width: 1024px) {
            .page-wrap {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .sidebar .sidebar-card {
                margin-bottom: 0;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-desktop {
                display: none;
            }
            .nav-mobile {
                display: none;
            }
            .nav-mobile.open {
                display: block;
            }
            .header-inner {
                align-items: center;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
            }
            .search-block form {
                flex-direction: column;
            }
            .search-block input[type="text"] {
                min-width: auto;
            }
        }
        @media (max-width: 480px) {
            .stat-grid {
                grid-template-columns: 1fr;
            }
            .container {
                padding: 0 14px;
            }
            .breadcrumb ul {
                font-size: 0.8rem;
                gap: 4px 8px;
            }
        }
        .tag {
            display: inline-block;
            background: #e2e8f0;
            padding: 2px 14px;
            border-radius: 40px;
            font-size: 0.8rem;
            color: #475569;
            margin-right: 6px;
        }
        .emoji-big {
            font-size: 2rem;
            margin-right: 8px;
        }
        .link-list-inline {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            list-style: none;
            margin: 16px 0;
        }
        .link-list-inline li a {
            background: #f1f5f9;
            padding: 6px 18px;
            border-radius: 40px;
            font-weight: 500;
            transition: background 0.2s, color 0.2s;
        }
        .link-list-inline li a:hover {
            background: #f97316;
            color: #fff;
        }
        .schema-hidden {
            display: none;
        }