*,
        *::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, sans-serif;
            background: #0b0b14;
            color: #e8e8f0;
            line-height: 1.75;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #ff8c42;
            text-decoration: none;
            transition: color .25s, opacity .25s;
        }
        a:hover,
        a:focus {
            color: #ffb07a;
            outline: 2px solid #ff8c4266;
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: #fff;
            margin: 1.5em 0 .5em;
        }
        h1 {
            font-size: 2.8rem;
            margin-top: .25em;
            letter-spacing: -.02em;
        }
        h2 {
            font-size: 2.1rem;
            border-left: 5px solid #ff6b00;
            padding-left: .8rem;
            margin-top: 2.2em;
        }
        h3 {
            font-size: 1.6rem;
            color: #ffb07a;
            margin-top: 1.8em;
        }
        h4 {
            font-size: 1.25rem;
            color: #ffd699;
            margin-top: 1.4em;
        }
        p {
            margin: .9em 0 1.2em;
            max-width: 78ch;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: #12121f;
            border-bottom: 3px solid #ff6b00;
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(6px);
            box-shadow: 0 4px 30px rgba(0, 0, 0, .7);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: .6rem 0;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 900;
            letter-spacing: -.03em;
            background: linear-gradient(135deg, #ff6b00, #ffd700);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: none;
            display: inline-flex;
            align-items: center;
            gap: .3rem;
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: #ff6b00;
            font-size: 1.8rem;
        }
        .my-logo small {
            font-size: .7rem;
            -webkit-text-fill-color: initial;
            color: #aaa;
            font-weight: 400;
            letter-spacing: .05em;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: .3rem .6rem;
            border-radius: 8px;
            transition: background .2s;
        }
        .nav-toggle:hover {
            background: #2a2a3e;
        }
        .primary-nav {
            display: flex;
            gap: .2rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .primary-nav a {
            padding: .5rem 1rem;
            border-radius: 30px;
            font-weight: 500;
            font-size: .92rem;
            color: #ddd;
            transition: background .25s, color .25s;
            white-space: nowrap;
        }
        .primary-nav a:hover,
        .primary-nav a.active {
            background: #ff6b0022;
            color: #ff8c42;
        }
        .primary-nav a i {
            margin-right: .35rem;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: .4rem .6rem;
            padding: .7rem 0 .3rem;
            font-size: .88rem;
            color: #999;
            list-style: none;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: .6rem;
            color: #ff6b00;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #bbb;
        }
        .breadcrumb a:hover {
            color: #ff8c42;
        }
        .breadcrumb .current {
            color: #ffd699;
        }
        .hero-img-wrap {
            margin: 1.8rem 0 2.2rem;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 12px 40px rgba(255, 107, 0, .2);
            background: #1a1a2e;
            position: relative;
        }
        .hero-img-wrap img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .hero-img-wrap .img-credit {
            position: absolute;
            bottom: 8px;
            right: 12px;
            background: rgba(0, 0, 0, .7);
            padding: .2rem .8rem;
            border-radius: 30px;
            font-size: .75rem;
            color: #ccc;
        }
        .updated-badge {
            display: inline-block;
            background: #ff6b0022;
            color: #ffb07a;
            padding: .2rem 1rem;
            border-radius: 30px;
            font-size: .85rem;
            border: 1px solid #ff6b0044;
            margin-bottom: .5rem;
        }
        .search-section {
            background: #161625;
            border-radius: 16px;
            padding: 1.6rem 2rem;
            margin: 2.2rem 0;
            border: 1px solid #2a2a40;
        }
        .search-form {
            display: flex;
            gap: .6rem;
            flex-wrap: wrap;
            max-width: 640px;
        }
        .search-form input[type="text"] {
            flex: 1 1 220px;
            padding: .8rem 1.2rem;
            border: 2px solid #333;
            border-radius: 40px;
            background: #0e0e1a;
            color: #f0f0f0;
            font-size: 1rem;
            outline: none;
            transition: border .3s;
        }
        .search-form input[type="text"]:focus {
            border-color: #ff6b00;
        }
        .search-form button {
            background: #ff6b00;
            border: none;
            border-radius: 40px;
            padding: .8rem 2rem;
            font-weight: 700;
            color: #fff;
            font-size: 1rem;
            cursor: pointer;
            transition: background .3s, transform .15s;
            display: inline-flex;
            align-items: center;
            gap: .5rem;
        }
        .search-form button:hover {
            background: #e05e00;
            transform: scale(1.02);
        }
        .interact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin: 2.6rem 0;
        }
        .interact-card {
            background: #161625;
            border-radius: 16px;
            padding: 1.6rem 1.8rem;
            border: 1px solid #2a2a40;
        }
        .interact-card h3 {
            margin-top: 0;
            font-size: 1.3rem;
            color: #fff;
        }
        .interact-card form {
            display: flex;
            flex-direction: column;
            gap: .8rem;
            margin-top: .6rem;
        }
        .interact-card input,
        .interact-card textarea,
        .interact-card select {
            padding: .7rem 1rem;
            border-radius: 10px;
            border: 2px solid #2e2e44;
            background: #0c0c18;
            color: #eee;
            font-size: .95rem;
            outline: none;
            transition: border .3s;
            font-family: inherit;
        }
        .interact-card input:focus,
        .interact-card textarea:focus,
        .interact-card select:focus {
            border-color: #ff6b00;
        }
        .interact-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .interact-card button {
            align-self: flex-start;
            background: #ff6b00;
            border: none;
            border-radius: 30px;
            padding: .6rem 1.8rem;
            font-weight: 700;
            color: #fff;
            cursor: pointer;
            transition: background .3s;
            font-size: .95rem;
        }
        .interact-card button:hover {
            background: #e05e00;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: .2rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #444;
            cursor: pointer;
            transition: color .2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #ffd700;
        }
        @media(max-width:768px) {
            .interact-grid {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .header-inner {
                padding: .4rem 0;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .primary-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #181828;
                padding: .8rem 0 1.2rem;
                border-radius: 0 0 16px 16px;
                gap: .1rem;
                margin-top: .5rem;
            }
            .primary-nav.open {
                display: flex;
            }
            .primary-nav a {
                padding: .7rem 1.2rem;
                border-radius: 0;
                border-bottom: 1px solid #222238;
            }
            .nav-toggle {
                display: block;
            }
            .search-section {
                padding: 1.2rem 1rem;
            }
            .search-form button {
                padding: .6rem 1.4rem;
                font-size: .9rem;
            }
            .breadcrumb {
                font-size: .78rem;
            }
        }
        .content-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.6rem 0;
            background: #13131f;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid #2a2a40;
        }
        .content-table th {
            background: #ff6b0022;
            color: #ffb07a;
            font-weight: 700;
            padding: .8rem 1rem;
            text-align: left;
        }
        .content-table td {
            padding: .7rem 1rem;
            border-top: 1px solid #222238;
        }
        .content-table tr:hover td {
            background: #1c1c30;
        }
        friend-link {
            display: block;
            margin: 2rem 0 .6rem;
            padding: 1.4rem 1.8rem;
            background: #12121e;
            border-radius: 16px;
            border: 1px solid #2a2a40;
        }
        friend-link h4 {
            margin: 0 0 .8rem;
            font-size: 1.1rem;
            color: #ffd699;
        }
        friend-link .friend-list {
            display: flex;
            flex-wrap: wrap;
            gap: .8rem 1.6rem;
        }
        friend-link .friend-list a {
            color: #bbb;
            font-size: .95rem;
            padding: .2rem 0;
            border-bottom: 2px solid transparent;
            transition: border-color .25s, color .25s;
        }
        friend-link .friend-list a:hover {
            color: #ff8c42;
            border-bottom-color: #ff8c42;
        }
        .site-footer {
            margin-top: auto;
            background: #0c0c16;
            border-top: 2px solid #1e1e32;
            padding: 2rem 0 1.2rem;
            font-size: .9rem;
            color: #888;
        }
        .site-footer .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }
        .site-footer .copyright {
            font-size: .85rem;
        }
        .site-footer a {
            color: #aaa;
        }
        .site-footer a:hover {
            color: #ff8c42;
        }
        .highlight-box {
            background: #1a1a30;
            border-left: 5px solid #ffd700;
            padding: .8rem 1.4rem;
            border-radius: 0 12px 12px 0;
            margin: 1.6rem 0;
        }
        .highlight-box p {
            margin: .3rem 0;
        }
        .emoji-big {
            font-size: 1.6rem;
            vertical-align: middle;
        }
        .toc {
            background: #131323;
            border-radius: 16px;
            padding: 1.4rem 1.8rem;
            margin: 1.8rem 0;
            border: 1px solid #2a2a40;
        }
        .toc ol {
            columns: 2;
            column-gap: 2rem;
            list-style: none;
            counter-reset: toc-counter;
        }
        .toc li {
            counter-increment: toc-counter;
            margin-bottom: .4rem;
            break-inside: avoid;
        }
        .toc li::before {
            content: counter(toc-counter) ". ";
            color: #ff6b00;
            font-weight: 700;
            margin-right: .3rem;
        }
        .toc a {
            color: #ccc;
        }
        .toc a:hover {
            color: #ff8c42;
        }
        @media(max-width:600px) {
            .toc ol {
                columns: 1;
            }
            .site-footer .footer-inner {
                flex-direction: column;
                text-align: center;
            }
        }
        .content-section {
            padding: .4rem 0 1.6rem;
        }
        .content-section p {
            text-align: justify;
        }
        .btn-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: #ff6b00;
            color: #fff;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 20px rgba(255, 107, 0, .4);
            transition: transform .25s, opacity .3s;
            opacity: .8;
            border: none;
            cursor: pointer;
            z-index: 99;
        }
        .btn-top:hover {
            transform: scale(1.1);
            opacity: 1;
        }
        @media(max-width:480px) {
            .btn-top {
                bottom: 1.2rem;
                right: 1.2rem;
                width: 42px;
                height: 42px;
                font-size: 1.2rem;
            }
        }