*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
            background: #0d0f1a;
            color: #e8edf5;
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #80b8ff;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #ffd866;
            text-decoration: underline;
        }
        a:focus-visible {
            outline: 2px solid #ffd866;
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.6rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }
        .site-header {
            background: linear-gradient(145deg, #141824 0%, #1a1f2e 100%);
            border-bottom: 1px solid #2c324a;
            padding: 12px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(8px);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px 20px;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #f0c44a, #ff8a5c);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: #f0c44a;
            font-size: 1.8rem;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.9;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 4px 12px;
            flex-wrap: wrap;
            padding: 0;
        }
        .nav-list li a {
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            color: #c8cee8;
            transition: background 0.25s, color 0.25s;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list li a:hover {
            background: rgba(255, 216, 102, 0.12);
            color: #ffd866;
            text-decoration: none;
        }
        .nav-list li a.active {
            background: rgba(255, 216, 102, 0.18);
            color: #ffd866;
        }
        .hamburger {
            display: none;
            background: transparent;
            border: 1px solid #3d445e;
            color: #e8edf5;
            font-size: 1.6rem;
            padding: 6px 12px;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #262d44;
        }
        .hamburger:focus-visible {
            outline: 2px solid #ffd866;
        }
        .breadcrumb-wrap {
            background: #121620;
            padding: 10px 0;
            border-bottom: 1px solid #1f253a;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 6px 12px;
            padding: 0;
            font-size: 0.85rem;
            color: #8892b0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #55607a;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #8fa4d8;
        }
        .breadcrumb .current {
            color: #ffd866;
            font-weight: 600;
        }
        main {
            flex: 1;
            padding: 32px 0 48px;
        }
        .article-header {
            margin-bottom: 40px;
        }
        .article-header h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            background: linear-gradient(135deg, #f7e6a0, #ffb07a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 12px;
        }
        .article-header .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 28px;
            color: #8892b0;
            font-size: 0.9rem;
            margin-top: 8px;
        }
        .article-header .meta i {
            margin-right: 6px;
            color: #f0c44a;
        }
        .last-updated {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #1e2438;
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #bcc4e0;
        }
        .hero-image-wrap {
            margin: 28px 0 32px;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
            background: #141824;
        }
        .hero-image-wrap img {
            width: 100%;
            max-height: 460px;
            object-fit: cover;
        }
        .hero-image-wrap .caption {
            padding: 12px 20px;
            font-size: 0.85rem;
            color: #8892b0;
            background: #0f121c;
            border-top: 1px solid #1f253a;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 48px 0 16px;
            color: #f0e6d0;
            border-left: 4px solid #f0c44a;
            padding-left: 18px;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin: 32px 0 12px;
            color: #dce2f5;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 24px 0 8px;
            color: #bcc8f0;
        }
        p {
            margin-bottom: 1.2rem;
            color: #d5dcee;
        }
        .content-card {
            background: #141824;
            border-radius: 16px;
            padding: 28px 30px;
            margin: 28px 0;
            border: 1px solid #232a42;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
        }
        .content-card .highlight {
            color: #ffd866;
            font-weight: 600;
        }
        .emoji-big {
            font-size: 1.4rem;
            margin-right: 6px;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 16px;
            margin: 20px 0;
        }
        .stat-item {
            background: #1a2032;
            border-radius: 12px;
            padding: 18px 16px;
            text-align: center;
            border: 1px solid #2a314c;
            transition: transform 0.2s, border-color 0.2s;
        }
        .stat-item:hover {
            transform: translateY(-4px);
            border-color: #f0c44a;
        }
        .stat-item .num {
            font-size: 2rem;
            font-weight: 800;
            color: #ffd866;
            display: block;
        }
        .stat-item .label {
            font-size: 0.85rem;
            color: #8892b0;
            margin-top: 4px;
        }
        .tip-box {
            background: #1a253a;
            border-left: 4px solid #f0c44a;
            padding: 18px 22px;
            border-radius: 0 12px 12px 0;
            margin: 20px 0;
            font-style: normal;
        }
        .tip-box strong {
            color: #ffd866;
        }
        .link-list-inline {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            list-style: none;
            padding: 0;
            margin: 16px 0;
        }
        .link-list-inline li a {
            background: #1a2032;
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.9rem;
            border: 1px solid #2c324a;
            transition: background 0.2s, border-color 0.2s;
        }
        .link-list-inline li a:hover {
            background: #262d44;
            border-color: #f0c44a;
            text-decoration: none;
        }
        .interactive-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 48px 0;
        }
        @media (max-width:800px) {
            .interactive-section {
                grid-template-columns: 1fr;
            }
        }
        .interactive-card {
            background: #141824;
            border-radius: 16px;
            padding: 28px 26px;
            border: 1px solid #232a42;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .interactive-card h3 {
            margin-top: 0;
            font-size: 1.4rem;
            color: #f0e6d0;
            border-bottom: 1px solid #232a42;
            padding-bottom: 10px;
            margin-bottom: 20px;
        }
        .interactive-card form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .interactive-card label {
            font-weight: 500;
            font-size: 0.95rem;
            color: #bcc4e0;
        }
        .interactive-card input,
        .interactive-card textarea,
        .interactive-card select {
            background: #0f121c;
            border: 1px solid #2c324a;
            border-radius: 10px;
            padding: 12px 16px;
            color: #e8edf5;
            font-size: 0.95rem;
            transition: border-color 0.2s;
            width: 100%;
        }
        .interactive-card input:focus,
        .interactive-card textarea:focus,
        .interactive-card select:focus {
            border-color: #f0c44a;
            outline: none;
            box-shadow: 0 0 0 3px rgba(240, 196, 74, 0.15);
        }
        .interactive-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            background: linear-gradient(135deg, #f0c44a, #e8a83a);
            border: none;
            color: #0d0f1a;
            font-weight: 700;
            font-size: 1rem;
            padding: 12px 28px;
            border-radius: 30px;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(240, 196, 74, 0.25);
        }
        .btn:active {
            transform: translateY(0);
        }
        .btn-outline {
            background: transparent;
            border: 1px solid #f0c44a;
            color: #f0c44a;
        }
        .btn-outline:hover {
            background: rgba(240, 196, 74, 0.1);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            font-size: 1.8rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            color: #3d445e;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f0c44a;
        }
        .site-footer {
            background: #0b0d16;
            border-top: 1px solid #1f253a;
            padding: 36px 0 24px;
            margin-top: 48px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
        }
        @media (max-width:700px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .footer-grid h4 {
            color: #f0e6d0;
            font-size: 1.1rem;
            margin-bottom: 12px;
            border-bottom: 1px solid #1f253a;
            padding-bottom: 6px;
        }
        .footer-grid ul {
            list-style: none;
            padding: 0;
        }
        .footer-grid ul li {
            margin-bottom: 6px;
        }
        .footer-grid ul li a {
            color: #8892b0;
            font-size: 0.9rem;
        }
        .footer-grid ul li a:hover {
            color: #ffd866;
        }
        friend-link {
            display: block;
            margin: 20px 0 8px;
            padding: 18px 20px;
            background: #10131e;
            border-radius: 12px;
            border: 1px solid #1f253a;
            font-size: 0.9rem;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
            padding: 4px 12px;
            background: #1a2032;
            border-radius: 20px;
            font-size: 0.85rem;
            color: #bcc4e0;
            transition: background 0.2s;
        }
        friend-link a:hover {
            background: #262d44;
            color: #ffd866;
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            padding-top: 24px;
            margin-top: 24px;
            border-top: 1px solid #1a1f2e;
            color: #5a6482;
            font-size: 0.85rem;
        }
        .copyright strong {
            color: #8892b0;
        }
        @media (max-width:768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #141824;
                padding: 12px 0 16px;
                border-radius: 0 0 16px 16px;
                border-top: 1px solid #232a42;
                margin-top: 8px;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                padding: 10px 20px;
                border-radius: 0;
                width: 100%;
                border-left: 3px solid transparent;
            }
            .nav-list li a:hover {
                border-left-color: #f0c44a;
                background: rgba(255, 216, 102, 0.05);
            }
            .hamburger {
                display: inline-flex;
            }
            .article-header h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            .content-card {
                padding: 18px 16px;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width:480px) {
            .container {
                padding: 0 12px;
            }
            .article-header h1 {
                font-size: 1.5rem;
            }
            .stat-grid {
                grid-template-columns: 1fr;
            }
            .my-logo {
                font-size: 1.3rem;
            }
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mb-8 {
            margin-bottom: 8px;
        }
        .flex-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }
        .anchor-offset {
            scroll-margin-top: 90px;
        }