*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --blue: #4f6ef7;
            --blue-deep: #3b56e0;
            --warm: #f59e4b;
            --ink: #1a1a2e;
            --stone: #6b7280;
            --snow: #fafafa;
            --card-bg: #ffffff;
            --border-light: rgba(0, 0, 0, 0.05);
            --shadow-card: 0 20px 40px -12px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 28px 50px -14px rgba(0, 0, 0, 0.10);
            --radius-lg: 22px;
            --radius-xl: 28px;
            --radius-sm: 14px;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
            color: var(--ink);
            background-color: var(--snow);
            overflow-x: hidden;
            letter-spacing: -0.01em;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            line-height: 1.5;
        }
        .ambient-glow {
            position: fixed;
            top: -250px;
            right: -80px;
            width: 800px;
            height: 700px;
            background: radial-gradient(circle, rgba(79, 110, 247, 0.06) 0%, rgba(255,255,255,0) 72%);
            z-index: -1;
            pointer-events: none;
        }
        /* 导航栏——与首页保持一致 */
        header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(250, 250, 250, 0.78);
            backdrop-filter: blur(22px);
            -webkit-backdrop-filter: blur(22px);
            border-bottom: 1px solid var(--border-light);
            transition: background 0.3s ease;
        }
        .nav-container {
            max-width: 1260px;
            margin: 0 auto;
            padding: 0 28px;
            height: 76px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .logo-box a {
            display: flex;
            align-items: center;
            text-decoration: none;
            color: var(--ink);
            font-weight: 800;
            font-size: 20px;
            letter-spacing: -0.03em;
            gap: 10px;
            white-space: nowrap;
        }
        .logo-img {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            flex-shrink: 0;
        }
        .menu-box {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .menu-box a {
            color: #4b5563;
            text-decoration: none;
            margin-left: 28px;
            font-size: 14.5px;
            font-weight: 600;
            transition: color 0.2s ease;
            position: relative;
            white-space: nowrap;
        }
        .menu-box a:hover,
        .menu-box a.active {
            color: var(--ink);
        }
        .menu-box a.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            right: 0;
            height: 2.5px;
            background: var(--blue);
            border-radius: 3px;
        }
        .github-cta {
            background: var(--ink);
            color: #ffffff !important;
            padding: 10px 20px;
            border-radius: 40px;
            font-size: 13.5px !important;
            transition: transform 0.2s, background-color 0.2s !important;
            margin-left: 32px !important;
        }
        .github-cta:hover {
            background: #2d2d44 !important;
            transform: scale(1.03);
            color: #ffffff !important;
        }
        .github-cta::after {
            display: none !important;
        }

        /* Hero区域 */
        .hero-section {
            max-width: 1260px;
            margin: 0 auto;
            padding: 70px 28px 20px 28px;
            text-align: center;
        }
        .hero-section h1 {
            font-size: 48px;
            font-weight: 900;
            line-height: 1.15;
            color: var(--ink);
            margin: 0 auto 16px auto;
            letter-spacing: -0.04em;
            max-width: 750px;
        }
        .hero-section h1 span {
            background: linear-gradient(135deg, #4f6ef7 0%, #f59e4b 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-section .subtitle {
            font-size: 17px;
            color: #5b6578;
            max-width: 620px;
            margin: 0 auto 0 auto;
            line-height: 1.6;
            font-weight: 500;
        }

        /* 创意版块①：紧急自救三连 */
        .rescue-steps {
            max-width: 1000px;
            margin: 50px auto 70px auto;
            padding: 0 28px;
            text-align: center;
        }
        .section-heading {
            text-align: center;
            margin-bottom: 36px;
        }
        .section-heading .label-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: #f59e4b;
            background: rgba(245, 158, 75, 0.08);
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 10px;
        }
        .section-heading h2 {
            font-size: 32px;
            font-weight: 900;
            letter-spacing: -0.03em;
            color: var(--ink);
        }
        .steps-row {
            display: flex;
            gap: 22px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .step-card {
            flex: 1 1 200px;
            min-width: 180px;
            max-width: 260px;
            background: #ffffff;
            border: 2px dashed rgba(0, 0, 0, 0.08);
            border-radius: var(--radius-lg);
            padding: 30px 16px;
            text-align: center;
            transition: all 0.3s ease;
        }
        .step-card:hover {
            border-color: var(--blue);
            border-style: solid;
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-num {
            display: inline-block;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--blue);
            color: #fff;
            font-weight: 900;
            font-size: 18px;
            line-height: 42px;
            margin-bottom: 14px;
        }
        .step-card h4 {
            font-size: 17px;
            font-weight: 800;
            color: var(--ink);
            margin: 0 0 6px 0;
        }
        .step-card .step-desc {
            font-size: 13.5px;
            color: #6b7280;
            line-height: 1.5;
        }

        /* FAQ网格 */
        .faq-grid {
            max-width: 1260px;
            margin: 0 auto 90px auto;
            padding: 0 28px;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 22px;
        }
        .faq-card {
            background: #ffffff;
            border: 1px solid rgba(0, 0, 0, 0.05);
            border-radius: 20px;
            overflow: hidden;
            transition: border-color 0.25s, box-shadow 0.3s;
            box-shadow: 0 1px 3px rgba(0,0,0,0.03);
        }
        .faq-card:hover {
            border-color: rgba(79, 110, 247, 0.2);
            box-shadow: var(--shadow-hover);
        }
        details {
            width: 100%;
        }
        summary {
            padding: 28px 32px;
            font-size: 17px;
            font-weight: 800;
            color: var(--ink);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            user-select: none;
            letter-spacing: -0.02em;
            transition: background 0.2s;
        }
        summary:hover {
            background: #f9fafb;
        }
        summary::-webkit-details-marker {
            display: none;
        }
        summary::after {
            content: "";
            width: 18px;
            height: 18px;
            background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%234f6ef7' stroke-width='2.5'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E") no-repeat center center;
            transition: transform 0.25s ease;
            flex-shrink: 0;
            margin-left: 16px;
        }
        details[open] summary::after {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 32px 28px 32px;
            border-top: 1px solid rgba(0, 0, 0, 0.03);
            background-color: #fbfbfb;
        }
        .faq-answer p {
            font-size: 14.5px;
            line-height: 1.7;
            color: #475569;
            margin: 16px 0 0 0;
        }
        .faq-answer code {
            font-family: 'SF Mono', 'Fira Code', monospace;
            background: rgba(79,110,247,0.06);
            padding: 3px 8px;
            border-radius: 6px;
            font-size: 13px;
            color: #0f172a;
        }

        /* 创意版块②：错误代码喵语翻译 */
        .error-translator {
            max-width: 1000px;
            margin: 0 auto 100px auto;
            padding: 0 28px;
            text-align: center;
        }
        .translator-grid {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: center;
            margin-top: 28px;
        }
        .error-card {
            flex: 1 1 200px;
            min-width: 180px;
            background: #ffffff;
            border: 1px solid rgba(0,0,0,0.05);
            border-radius: var(--radius-lg);
            padding: 24px 18px;
            text-align: center;
            transition: transform 0.3s, box-shadow 0.3s;
            box-shadow: 0 1px 3px rgba(0,0,0,0.03);
        }
        .error-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .error-emoji {
            font-size: 38px;
            margin-bottom: 10px;
        }
        .error-code {
            font-family: monospace;
            font-size: 14px;
            font-weight: 700;
            color: var(--blue);
            margin-bottom: 6px;
        }
        .error-card h4 {
            font-size: 16px;
            font-weight: 800;
            color: var(--ink);
            margin: 0 0 6px 0;
        }
        .error-card p {
            font-size: 13px;
            color: #6b7280;
            line-height: 1.5;
            margin: 0;
        }

        /* 页脚 */
        footer {
            background: #ffffff;
            border-top: 1px solid rgba(0, 0, 0, 0.04);
            padding: 60px 0 40px 0;
        }
        .footer-container {
            max-width: 1260px;
            margin: 0 auto;
            padding: 0 28px;
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            gap: 40px;
        }
        .footer-brand h4 {
            margin: 0 0 10px 0;
            font-size: 17px;
            font-weight: 800;
            color: var(--ink);
        }
        .footer-brand p {
            margin: 0;
            font-size: 13.5px;
            color: #6b7280;
            max-width: 300px;
            line-height: 1.6;
        }
        .footer-links-grid {
            display: flex;
            gap: 70px;
        }
        .footer-col h5 {
            margin: 0 0 18px 0;
            font-size: 13px;
            font-weight: 700;
            color: var(--ink);
            text-transform: uppercase;
            letter-spacing: 0.06em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col li {
            margin-bottom: 10px;
        }
        .footer-col a {
            text-decoration: none;
            font-size: 13.5px;
            color: #6b7280;
            transition: color 0.2s;
        }
        .footer-col a:hover {
            color: var(--ink);
        }

        @media (max-width: 1024px) {
            .faq-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .hero-section h1 {
                font-size: 38px;
            }
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 30px;
            }
            .nav-container {
                padding: 0 16px;
                height: 64px;
            }
            .menu-box {
                display: none;
            }
            .faq-grid,
            .rescue-steps,
            .error-translator {
                padding: 0 18px;
            }
            summary {
                padding: 22px 20px;
                font-size: 15px;
            }
            .faq-answer {
                padding: 0 20px 22px 20px;
            }
            .footer-container {
                flex-direction: column;
                gap: 36px;
            }
            .footer-links-grid {
                gap: 36px;
                flex-wrap: wrap;
            }
            .steps-row,
            .translator-grid {
                flex-direction: column;
                align-items: center;
            }
            .step-card,
            .error-card {
                max-width: 100%;
                width: 100%;
            }
        }