*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            background: #f9fafc;
            color: #1e293b;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        a {
            color: #2563eb;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #1d4ed8;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            margin-top: 1.2em;
            margin-bottom: 0.6em;
            font-weight: 700;
            color: #0f172a;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.4em;
        }
        h2 {
            font-size: 1.8rem;
            border-bottom: 3px solid #2563eb;
            padding-bottom: 0.3em;
        }
        h3 {
            font-size: 1.4rem;
            color: #1e293b;
        }
        h4 {
            font-size: 1.15rem;
            color: #334155;
        }
        p {
            margin-bottom: 1.1em;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
            color: #fff;
            padding: 16px 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;
        }
        .my-logo {
            font-size: 1.7rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #fff;
            background: linear-gradient(135deg, #60a5fa, #a78bfa);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none !important;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            -webkit-text-fill-color: #60a5fa;
            font-size: 1.8rem;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none !important;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 6px 12px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #e2e8f0;
            padding: 8px 14px;
            border-radius: 8px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: background 0.2s, color 0.2s;
            white-space: nowrap;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            text-decoration: none;
        }
        .main-nav a i {
            margin-right: 6px;
            font-size: 0.85rem;
        }
        .breadcrumb {
            background: #f1f5f9;
            padding: 10px 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #e2e8f0;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 10px;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .breadcrumb li+li::before {
            content: "›";
            color: #94a3b8;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #2563eb;
        }
        .breadcrumb .current {
            color: #64748b;
            font-weight: 500;
        }
        .hero {
            background: linear-gradient(135deg, #1e3a5f, #0f172a);
            color: #fff;
            padding: 48px 0 40px;
            border-radius: 0 0 40px 40px;
            margin-bottom: 40px;
        }
        .hero h1 {
            font-size: 2.8rem;
            color: #fff;
            margin-top: 0;
        }
        .hero p {
            font-size: 1.15rem;
            color: #cbd5e1;
            max-width: 720px;
        }
        .hero .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px 30px;
            margin-top: 20px;
            color: #94a3b8;
            font-size: 0.92rem;
        }
        .hero .meta i {
            margin-right: 6px;
            color: #60a5fa;
        }
        .section {
            background: #fff;
            border-radius: 20px;
            padding: 32px 36px;
            margin-bottom: 32px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            border: 1px solid #f1f5f9;
        }
        .section-dark {
            background: #f8fafc;
            border-color: #e2e8f0;
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
            margin: 24px 0;
        }
        .feature-card {
            background: #f8fafc;
            padding: 24px 20px;
            border-radius: 16px;
            border: 1px solid #e2e8f0;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
        }
        .feature-card i {
            font-size: 2rem;
            color: #2563eb;
            margin-bottom: 12px;
        }
        .feature-card h4 {
            margin-top: 0;
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 10px 20px;
            padding: 0;
            list-style: none;
            margin: 16px 0;
        }
        .link-list li {
            padding: 4px 0;
        }
        .link-list a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 500;
        }
        .link-list a i {
            font-size: 0.75rem;
            color: #94a3b8;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 20px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.92rem;
        }
        th,
        td {
            padding: 12px 16px;
            text-align: left;
            border-bottom: 1px solid #e2e8f0;
        }
        th {
            background: #f1f5f9;
            font-weight: 600;
            color: #0f172a;
        }
        tr:hover td {
            background: #f8fafc;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 4px;
            color: #1e293b;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #e2e8f0;
            border-radius: 10px;
            font-size: 0.95rem;
            font-family: inherit;
            transition: border-color 0.2s;
            background: #fff;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #2563eb;
            outline: none;
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border: none;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            background: #2563eb;
            color: #fff;
        }
        .btn:hover {
            background: #1d4ed8;
            transform: translateY(-1px);
        }
        .btn:active {
            transform: scale(0.97);
        }
        .btn-secondary {
            background: #f1f5f9;
            color: #1e293b;
        }
        .btn-secondary:hover {
            background: #e2e8f0;
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.6rem;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #d1d5db;
            transition: color 0.15s;
            cursor: pointer;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f59e0b;
        }
        .comment-item {
            padding: 16px 0;
            border-bottom: 1px solid #f1f5f9;
        }
        .comment-item:last-child {
            border-bottom: none;
        }
        .comment-item .author {
            font-weight: 600;
            color: #0f172a;
        }
        .comment-item .date {
            font-size: 0.8rem;
            color: #94a3b8;
            margin-left: 12px;
        }
        .comment-item .text {
            margin-top: 4px;
            color: #334155;
        }
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 40px 0 24px;
            margin-top: 48px;
            border-radius: 40px 40px 0 0;
        }
        .site-footer a {
            color: #93c5fd;
        }
        .site-footer a:hover {
            color: #fff;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-grid h4 {
            color: #fff;
            margin-top: 0;
            font-size: 1.05rem;
        }
        .footer-grid ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-grid li {
            padding: 4px 0;
        }
        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: #64748b;
        }
        .footer-bottom .copyright {
            margin-top: 8px;
        }
        friend-link {
            display: block;
            padding: 12px 0;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
            padding: 6px 16px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 20px;
            font-size: 0.85rem;
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: background 0.2s;
        }
        friend-link a:hover {
            background: rgba(255, 255, 255, 0.12);
            text-decoration: none;
        }
        @media (max-width: 900px) {
            .hero h1 {
                font-size: 2rem;
            }
            .section {
                padding: 24px 18px;
            }
            .header-inner {
                gap: 12px;
            }
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
                padding: 12px 0 4px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 10px 14px;
                border-radius: 6px;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .link-list {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 540px) {
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero p {
                font-size: 0.95rem;
            }
            .section {
                padding: 18px 14px;
            }
            .link-list {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .breadcrumb ol {
                font-size: 0.75rem;
                gap: 4px 6px;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .star-rating {
                font-size: 1.3rem;
            }
        }
        .flex-between {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
        }
        .mt-2 {
            margin-top: 20px;
        }
        .mb-2 {
            margin-bottom: 20px;
        }
        .text-center {
            text-align: center;
        }
        .badge {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            background: #dbeafe;
            color: #1d4ed8;
        }
        .highlight {
            background: linear-gradient(to right, #fef3c7, #fde68a);
            padding: 0 6px;
            border-radius: 4px;
        }
        .emoji-lg {
            font-size: 1.8rem;
            line-height: 1;
        }
        .last-updated {
            display: inline-block;
            background: #f1f5f9;
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            color: #64748b;
        }