*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Roboto, Arial, sans-serif;
            background: #0e0e1a;
            color: #d9d9e3;
            line-height: 1.75;
        }
        a {
            color: #7aa2f7;
            text-decoration: none;
            transition: color .2s;
        }
        a:hover {
            color: #ffd166;
            text-decoration: underline;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 16px;
        }
        header {
            background: linear-gradient(135deg, #1a1035, #16162a);
            padding: 18px 0;
            border-bottom: 2px solid #2d2b55;
            position: sticky;
            top: 0;
            z-index: 999;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 900;
            background: linear-gradient(90deg, #ffd166, #f0883e, #ffd166);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: 1px;
            white-space: nowrap;
        }
        .my-logo:hover {
            text-decoration: none;
            filter: brightness(1.2);
        }
        .my-logo small {
            font-size: .75rem;
            display: block;
            color: #8f8bb8;
            -webkit-text-fill-color: #8f8bb8;
            letter-spacing: .5px;
        }
        nav {
            display: flex;
            gap: 6px;
            align-items: center;
        }
        nav a {
            color: #b9b7d3;
            padding: 8px 12px;
            border-radius: 20px;
            font-size: .85rem;
            font-weight: 600;
            transition: background .2s, color .2s;
        }
        nav a:hover {
            background: #2d2b55;
            color: #ffd166;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: 2px solid #5a5585;
            color: #d9d9e3;
            font-size: 1.4rem;
            border-radius: 8px;
            padding: 6px 12px;
            cursor: pointer;
        }
        .breadcrumb {
            background: #14142a;
            padding: 10px 0;
            border-bottom: 1px solid #232345;
            font-size: .82rem;
        }
        .breadcrumb .container {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: #7aa2f7;
        }
        .breadcrumb span {
            color: #6b6b89;
        }
        .search-bar {
            padding: 24px 0 8px;
        }
        .search-bar form {
            display: flex;
            gap: 10px;
            max-width: 560px;
            margin: 0 auto;
        }
        .search-bar input {
            flex: 1;
            padding: 12px 20px;
            border-radius: 50px;
            border: 2px solid #2d2b55;
            background: #191930;
            color: #e3e3ee;
            font-size: .95rem;
            outline: none;
            transition: border-color .2s;
        }
        .search-bar input:focus {
            border-color: #7aa2f7;
        }
        .search-bar button {
            padding: 12px 26px;
            border-radius: 50px;
            border: none;
            background: linear-gradient(135deg, #ffd166, #f0883e);
            color: #1a1035;
            font-weight: 700;
            cursor: pointer;
            transition: transform .2s, box-shadow .2s;
        }
        .search-bar button:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 20px rgba(255, 209, 102, .3);
        }
        .hero {
            background: radial-gradient(ellipse at top, #222246, #0e0e1a);
            padding: 60px 0 40px;
            text-align: center;
        }
        .hero h1 {
            font-size: 2.8rem;
            background: linear-gradient(90deg, #ffd166, #ff6b6b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.2;
            margin-bottom: 12px;
            font-weight: 900;
        }
        .hero p {
            max-width: 760px;
            margin: 0 auto 20px;
            font-size: 1.1rem;
            color: #b6b3cf;
        }
        .hero .badge {
            display: inline-block;
            background: #2d2b55;
            border-radius: 30px;
            padding: 8px 20px;
            font-size: .8rem;
            color: #ffd166;
            margin: 0 4px 8px;
            border: 1px solid #4a4478;
        }
        main {
            padding: 30px 0 50px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 30px;
            align-items: start;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: #151528;
            border-radius: 16px;
            padding: 32px 36px;
            border: 1px solid #222244;
            box-shadow: 0 8px 30px rgba(0, 0, 0, .3);
        }
        article h2 {
            font-size: 1.7rem;
            color: #ffd166;
            margin-top: 36px;
            margin-bottom: 12px;
            border-bottom: 1px solid #2d2b55;
            padding-bottom: 8px;
        }
        article h3 {
            font-size: 1.2rem;
            color: #a8c7fa;
            margin-top: 24px;
            margin-bottom: 10px;
        }
        article h4 {
            font-size: 1rem;
            color: #d9b3e0;
            margin-top: 18px;
            margin-bottom: 6px;
        }
        article p {
            margin-bottom: 14px;
            font-size: .95rem;
        }
        article ul,
        article ol {
            margin-left: 20px;
            margin-bottom: 14px;
        }
        article li {
            margin-bottom: 6px;
            font-size: .93rem;
        }
        .highlight-box {
            background: #1d1d36;
            border-left: 4px solid #ffd166;
            padding: 18px 22px;
            border-radius: 0 12px 12px 0;
            margin: 22px 0;
        }
        .tip-box {
            background: #121f2d;
            border: 1px solid #1e3a5f;
            border-radius: 12px;
            padding: 16px 20px;
            margin: 18px 0;
        }
        .tip-box i {
            color: #7aa2f7;
            margin-right: 6px;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 12px;
            margin: 20px 0;
        }
        .stat-card {
            background: #1d1d36;
            border-radius: 12px;
            padding: 16px;
            text-align: center;
            border: 1px solid #2d2b55;
        }
        .stat-card .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: #ffd166;
            display: block;
        }
        .stat-card .label {
            font-size: .75rem;
            color: #8f8bb8;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 20px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: #1a1a30;
            border-radius: 12px;
            overflow: hidden;
        }
        th,
        td {
            padding: 12px 16px;
            text-align: left;
            border-bottom: 1px solid #2a2a4a;
            font-size: .88rem;
        }
        th {
            background: #2d2b55;
            color: #ffd166;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: .5px;
        }
        tr:hover {
            background: #1f1f38;
        }
        .img-placeholder {
            background: linear-gradient(135deg, #1e1e38, #2d2b55);
            border-radius: 12px;
            padding: 30px;
            text-align: center;
            border: 2px dashed #3a3565;
            margin: 24px 0;
            position: relative;
            min-height: 240px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }
        .img-placeholder i {
            font-size: 3rem;
            color: #ffd166;
            margin-bottom: 12px;
        }
        .img-placeholder span {
            font-size: .95rem;
            color: #b6b3cf;
        }
        .img-placeholder .alt-text {
            font-size: .8rem;
            color: #6b6b89;
            margin-top: 6px;
            font-style: italic;
        }
        .sidebar {
            background: #151528;
            border-radius: 16px;
            padding: 24px;
            border: 1px solid #222244;
            position: sticky;
            top: 90px;
        }
        .sidebar h3 {
            color: #ffd166;
            font-size: 1.1rem;
            margin-bottom: 14px;
            border-bottom: 1px solid #2d2b55;
            padding-bottom: 8px;
        }
        .sidebar ul {
            list-style: none;
        }
        .sidebar li {
            margin-bottom: 10px;
        }
        .sidebar a {
            font-size: .9rem;
            display: block;
            padding: 8px 12px;
            background: #1d1d36;
            border-radius: 8px;
            transition: background .2s, color .2s;
        }
        .sidebar a:hover {
            background: #2d2b55;
            color: #ffd166;
            text-decoration: none;
        }
        .sidebar i {
            margin-right: 8px;
            color: #7aa2f7;
            width: 16px;
        }
        .feedback-section {
            margin-top: 40px;
            padding-top: 30px;
            border-top: 1px solid #2d2b55;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 20px;
        }
        @media (max-width: 600px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
        }
        .feedback-card {
            background: #1d1d36;
            border-radius: 12px;
            padding: 20px;
            border: 1px solid #2a2a4a;
        }
        .feedback-card h4 {
            color: #ffd166;
            margin-bottom: 12px;
            font-size: 1rem;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .feedback-card textarea,
        .feedback-card input[type="number"],
        .feedback-card input[type="text"] {
            background: #0f0f1f;
            border: 1px solid #2d2b55;
            border-radius: 8px;
            padding: 10px;
            color: #d9d9e3;
            font-size: .9rem;
            resize: vertical;
            outline: none;
        }
        .feedback-card textarea:focus,
        .feedback-card input:focus {
            border-color: #7aa2f7;
        }
        .feedback-card button {
            background: linear-gradient(135deg, #ffd166, #f0883e);
            color: #1a1035;
            border: none;
            padding: 10px 18px;
            border-radius: 30px;
            font-weight: 700;
            cursor: pointer;
            transition: transform .2s;
            font-size: .9rem;
        }
        .feedback-card button:hover {
            transform: translateY(-2px);
        }
        .star-rating {
            display: flex;
            gap: 4px;
            font-size: 1.2rem;
            color: #4a4478;
        }
        .star-rating .fa-star.filled {
            color: #ffd166;
        }
        footer {
            background: #0b0b18;
            border-top: 2px solid #1e1e38;
            padding: 30px 0 20px;
            margin-top: 40px;
        }
        footer .container {
            text-align: center;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-bottom: 16px;
        }
        .footer-links a {
            font-size: .85rem;
            color: #8f8bb8;
        }
        .footer-links a:hover {
            color: #ffd166;
        }
        .copyright {
            font-size: .8rem;
            color: #5a5a78;
            border-top: 1px solid #1a1a30;
            padding-top: 16px;
            margin-top: 16px;
        }
        friend-link {
            display: block;
            margin: 12px 0;
            font-size: .9rem;
            color: #b6b3cf;
        }
        friend-link a {
            color: #7aa2f7;
            margin: 0 6px;
        }
        .back-top {
            position: fixed;
            bottom: 20px;
            right: 20px;
            background: #2d2b55;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #ffd166;
            box-shadow: 0 4px 15px rgba(0, 0, 0, .4);
            z-index: 99;
            transition: background .2s;
        }
        .back-top:hover {
            background: #3d3a6a;
            text-decoration: none;
        }
        .schema-json {
            display: none;
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            nav {
                display: none;
                flex-direction: column;
                width: 100%;
                padding: 10px 0;
                order: 3;
            }
            nav.open {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .hero h1 {
                font-size: 2rem;
            }
            article {
                padding: 20px 18px;
            }
            .content-grid {
                grid-template-columns: 1fr;
            }
        }