*,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --uno-red: #e2231a;
            --uno-blue: #0f6ab4;
            --uno-yellow: #ffd700;
            --uno-green: #2b9e5b;
            --ink: #1d1d1d;
            --paper: #f5f2eb;
            --card-bg: #ffffff;
            --radius: 16px;
            --shadow: 0 6px 18px rgba(0, 0, 0, .08);
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, Roboto, Helvetica, sans-serif;
            background: var(--paper);
            color: var(--ink);
            line-height: 1.6;
            font-size: 18px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        h1,
        h2,
        h3,
        h4 {
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin: 0 0 10px;
            color: var(--ink);
        }
        h1 {
            font-size: clamp(2.3rem, 5vw, 4rem);
            margin-top: 5px;
        }
        h2 {
            font-size: clamp(1.7rem, 3.5vw, 2.5rem);
            border-left: 6px solid var(--uno-red);
            padding-left: 17px;
            margin: 50px 0 20px;
        }
        h3 {
            font-size: clamp(1.3rem, 2vw, 1.7rem);
            margin-top: 30px;
            border-bottom: 2px solid #eee;
            padding-bottom: 5px;
        }
        h4 {
            font-size: 1.15rem;
            margin-top: 18px;
            color: #333;
        }
        p {
            margin-bottom: 1.2em;
        }
        ul,
        ol {
            margin: 0 0 1.5em 1.8em;
        }
        a {
            color: var(--uno-blue);
            text-decoration: none;
            transition: color .2s;
        }
        a:hover {
            color: var(--uno-red);
            text-decoration: underline;
        }
        .container {
            max-width: 1220px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(145deg, #1b1b1f, #232328);
            border-bottom: 4px solid var(--uno-red);
            padding: 10px 0;
            box-shadow: 0 6px 20px rgba(0, 0, 0, .25);
            position: sticky;
            top: 0;
            z-index: 200;
        }
        .header-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 900;
            letter-spacing: -0.03em;
            text-decoration: none;
            transition: transform .2s;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .my-logo .logo-icon {
            font-size: 2.4rem;
        }
        .my-logo:hover {
            transform: scale(1.03);
            text-decoration: none;
        }
        .my-logo .logo-text {
            background: linear-gradient(90deg, #fff, #ffd);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .my-logo .domain-badge {
            font-size: .78rem;
            background: rgba(255, 255, 255, .1);
            padding: 2px 10px;
            border-radius: 40px;
            color: #aaa;
            font-weight: 400;
            letter-spacing: 0;
        }
        .logo-site-link {
            color: #aaa;
            font-size: .9rem;
            margin-left: 16px;
            letter-spacing: .3px;
        }
        .logo-site-link:hover {
            color: #fff;
            text-decoration: none;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #eee;
            padding: 8px 14px;
            border-radius: 30px;
            font-weight: 500;
            font-size: .95rem;
            letter-spacing: .3px;
            transition: background .2s;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, .15);
            text-decoration: none;
            color: white;
        }
        .main-nav a i {
            margin-right: 6px;
            opacity: .8;
        }
        .hamburger {
            display: none;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 2rem;
            cursor: pointer;
            padding: 6px 12px;
            border-radius: 12px;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, .1);
        }
        @media (max-width: 900px) {
            .hamburger {
                display: inline-block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                margin-top: 10px;
                gap: 2px;
                padding: 10px 0;
                border-top: 1px solid rgba(255, 255, 255, .15);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                display: block;
                width: 100%;
            }
        }
        .breadcrumb {
            background: rgba(0, 0, 0, .28);
            padding: 10px 18px;
            border-radius: 40px;
            font-size: .85rem;
            color: #ddd;
            display: inline-block;
        }
        .breadcrumb a {
            color: var(--uno-yellow);
        }
        .breadcrumb a:hover {
            color: white;
        }
        .breadcrumb .sep {
            margin: 0 8px;
            opacity: .6;
        }
        .hero-panel {
            position: relative;
            padding: 70px 0 50px;
            background: linear-gradient(160deg, #1e1e2a, #16213e 80%);
            color: #fff;
            border-radius: 0 0 60px 60px;
            margin-bottom: 20px;
        }
        .hero-panel:after {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 215, 0, .2) 0%, transparent 70%);
            top: 30px;
            right: 0;
            border-radius: 50%;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.3fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .hero-copy h1 {
            color: #fff;
            font-size: 3rem;
            margin-bottom: 10px;
        }
        .hero-copy .lead {
            font-size: 1.3rem;
            color: #ced4da;
            line-height: 1.5;
            margin-bottom: 30px;
        }
        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 24px;
        }
        .hero-badges span {
            background: rgba(255, 255, 255, .1);
            border-radius: 30px;
            padding: 5px 18px;
            font-size: .9rem;
            backdrop-filter: blur(4px);
        }
        .hero-badges i {
            margin-right: 6px;
            color: var(--uno-yellow);
        }
        .hero-feature-img {
            border-radius: 24px;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, .4);
            transition: transform .4s;
            border: 3px solid rgba(255, 255, 255, .1);
        }
        .hero-feature-img:hover {
            transform: scale(1.02) rotate(1deg);
        }
        @media (max-width: 800px) {
            .hero-grid {
                grid-template-columns: 1fr;
            }
            .hero-panel {
                padding: 40px 0 30px;
            }
        }
        .btn-uno {
            display: inline-block;
            background: var(--uno-yellow);
            color: #111;
            padding: 14px 28px;
            border-radius: 60px;
            font-weight: 700;
            font-size: 1.05rem;
            transition: transform .18s, box-shadow .18s;
            box-shadow: 0 8px 24px rgba(255, 215, 0, .3);
            margin-right: 6px;
        }
        .btn-uno:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(255, 215, 0, .35);
            text-decoration: none;
            color: #000;
        }
        .btn-outline-light {
            display: inline-block;
            border: 2px solid #fff;
            padding: 12px 26px;
            border-radius: 60px;
            font-weight: 600;
            transition: background .3s;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .1);
            text-decoration: none;
            color: #fff;
        }
        .search-card {
            background: var(--card-bg);
            border-radius: 22px;
            padding: 32px;
            box-shadow: var(--shadow);
            margin: 50px 0;
            border: 1px solid #ededed;
        }
        .search-card form {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .search-card input[type="text"] {
            flex: 1;
            min-width: 220px;
            padding: 15px 22px;
            border: 2px solid #eee;
            border-radius: 60px;
            font-size: 1rem;
            outline: none;
            transition: border-color .3s;
        }
        .search-card input[type="text"]:focus {
            border-color: var(--uno-red);
        }
        .search-card button {
            background: var(--uno-red);
            border: none;
            color: white;
            padding: 14px 32px;
            border-radius: 60px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
        }
        .search-card button:hover {
            background: #b51d15;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 310px;
            gap: 40px;
            margin: 20px 0;
        }
        @media (max-width: 980px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-main {
            background: #fff;
            border-radius: 28px;
            padding: 35px 35px 20px;
            box-shadow: var(--shadow);
        }
        .sidebar-card {
            background: #fff;
            border-radius: 20px;
            padding: 25px;
            box-shadow: var(--shadow);
            margin-bottom: 24px;
            position: sticky;
            top: 90px;
        }
        @media(max-width:980px) {
            .sidebar-card {
                position: static;
            }
        }
        .sidebar-card h3 {
            border-bottom: 2px solid #eee;
            padding-bottom: 8px;
            font-size: 1.2rem;
            margin-top: 0;
        }
        .sidebar-card ul {
            list-style: none;
            margin-left: 0;
        }
        .sidebar-card li {
            margin-bottom: 12px;
        }
        .sidebar-card li a {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .info-box {
            border-radius: 16px;
            padding: 20px 24px;
            background: #f0f6ff;
            border-left: 6px solid var(--uno-blue);
            margin: 30px 0;
        }
        .warning-box {
            background: #fff5e5;
            border-left-color: var(--uno-yellow);
        }
        .pro-tip {
            background: #eefaf0;
            border-left-color: var(--uno-green);
        }
        .fun-fact {
            background: #fdedef;
            border-left-color: var(--uno-red);
        }
        .uno-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            background: #fff;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 0 0 1px #e8e8e8;
            margin-bottom: 28px;
        }
        .uno-table th {
            background: #232328;
            color: white;
            padding: 10px 16px;
            text-align: left;
            font-weight: 600;
        }
        .uno-table td {
            padding: 10px 16px;
            border-bottom: 1px solid #f0f0f0;
        }
        .uno-table tr:last-child td {
            border-bottom: none;
        }
        .uno-table tr:hover td {
            background: #fbfbfb;
        }
        .card-grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
            margin: 25px 0;
        }
        .icon-card {
            background: #fafafc;
            padding: 24px;
            border-radius: 20px;
            border: 1px solid #ececec;
            transition: transform .22s, box-shadow .22s;
        }
        .icon-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 14px 30px rgba(0, 0, 0, .06);
        }
        .icon-card .icon {
            background: var(--uno-red);
            color: white;
            width: 58px;
            height: 58px;
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin-bottom: 20px;
        }
        .icon-card.green .icon {
            background: var(--uno-green);
        }
        .icon-card.blue .icon {
            background: var(--uno-blue);
        }
        @media(max-width:800px) {
            .card-grid-3 {
                grid-template-columns: 1fr;
            }
        }
        .feedback-panel {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 50px 0;
        }
        @media(max-width:800px) {
            .feedback-panel {
                grid-template-columns: 1fr;
            }
        }
        .comment-section,
        .rating-section {
            background: white;
            border-radius: 22px;
            padding: 28px;
            box-shadow: var(--shadow);
        }
        .comment-section textarea {
            width: 100%;
            min-height: 130px;
            border: 2px solid #e5e5e5;
            border-radius: 14px;
            padding: 14px;
            font-size: 1rem;
            margin: 12px 0;
        }
        .comment-section input,
        .rating-section select {
            width: 100%;
            padding: 12px;
            margin: 8px 0;
            border-radius: 10px;
            border: 2px solid #e5e5e5;
            font-size: 1rem;
        }
        .btn-dark {
            background: #1d1d1d;
            color: white;
            border: none;
            padding: 12px 28px;
            border-radius: 40px;
            cursor: pointer;
            font-weight: 600;
        }
        .btn-dark:hover {
            background: #000;
        }
        .site-footer {
            background: #151517;
            color: #aaa;
            padding: 60px 0 20px;
            margin-top: 50px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 35px;
            margin-bottom: 35px;
        }
        .footer-grid h4 {
            color: white;
        }
        @media(max-width:800px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        .site-footer a {
            color: #ccc;
        }
        .site-footer a:hover {
            color: white;
        }
        .copyright {
            border-top: 1px solid #333;
            padding-top: 20px;
            text-align: center;
            font-size: .88rem;
            margin-top: 20px;
        }
        friend-link {
            display: block;
            background: #1d1d20;
            border-radius: 16px;
            padding: 20px 22px;
            margin-bottom: 25px;
            line-height: 2;
        }
        friend-link a {
            color: #bbb;
            margin-right: 16px;
            font-size: 1rem;
        }
        friend-link a:hover {
            color: var(--uno-yellow);
        }
        friend-link .fl-head {
            display: block;
            color: #eee;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 10px;
        }
        .back-to-top {
            position: fixed;
            bottom: 25px;
            right: 25px;
            background: var(--uno-red);
            color: white;
            border: none;
            border-radius: 50px;
            width: 50px;
            height: 50px;
            font-size: 1.4rem;
            box-shadow: 0 6px 20px rgba(0, 0, 0, .25);
            cursor: pointer;
            transition: transform .2s;
            z-index: 90;
        }
        .back-to-top:hover {
            transform: scale(1.1);
        }
        .content-article::first-letter {
            font-size: 3rem;
            float: left;
            font-weight: 800;
            color: var(--uno-red);
            line-height: .8;
            margin-right: 10px;
            margin-top: 5px;
        }
        .article-img {
            border-radius: 18px;
            margin-bottom: 10px;
        }
        .fig-caption {
            font-size: .85rem;
            text-align: center;
            color: #777;
            margin: 6px 0 26px;
        }