/* 基础变量与重置 */
        :root {
            --p: #6d6fea;
            --p-dark: #4b4dc4;
            --p-light: rgba(109, 111, 234, 0.1);
            --bg: #ffffff;
            --bg-alt: #f8f9fc;
            --text: #1a1a24;
            --text-muted: #5a5a6b;
            --radius: 16px;
            --radius-lg: 24px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            --shadow-hover: 0 12px 30px rgba(109, 111, 234, 0.15);
        }

        body {
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.6;
            word-break: break-word;
            overflow-wrap: break-word;
            -webkit-font-smoothing: antialiased;
        }

        * {
            box-sizing: border-box;
        }

        /* 统一的 Flex/Grid 安全规则 */
        .scout, .skulk, .blaze, .aurora, 
        .hearth, .ash, .tail, .api-nexus {
            display: flex;
            flex-wrap: wrap;
        }

        .scout > *, .skulk > *, .aurora > *, 
        .hearth > *, .ember, .flare, .hearth-fur {
            min-width: 0;
        }

        /* 顶部导航壳层 (继承) */
        .apex {
            position: sticky;
            top: 0;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            z-index: 100;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        }

        .scout {
            max-width: 1200px;
            margin: 0 auto;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 1.5rem;
        }

        .snout img {
            height: 32px;
            display: block;
        }

        .skulk {
            gap: 2rem;
            align-items: center;
        }

        .trail {
            text-decoration: none;
            color: var(--text-muted);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.25s ease;
        }

        .trail:hover, .trail.active {
            color: var(--p);
        }

        /* 主内容容器 */
        .pelt {
            display: block;
            width: 100%;
        }

        /* 1. Hero区 - 为创造Web的人而生 (角色:acquire -> section) */
        /* 创意种子应用: fullbleed_overlay */
        .blaze {
            position: relative;
            background: linear-gradient(135deg, #0c0d1c 0%, #1a1b41 100%);
            color: #ffffff;
            padding: 7rem 1.5rem;
            justify-content: center;
            overflow: hidden;
        }

        .blaze::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 70% 30%, rgba(109, 111, 234, 0.35) 0%, transparent 60%);
            z-index: 1;
        }

        .blaze::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 100px;
            background: linear-gradient(to top, var(--bg) 0%, transparent 100%);
            z-index: 1;
        }

        .aurora {
            position: relative;
            z-index: 2;
            max-width: 1200px;
            width: 100%;
            gap: 4rem;
            align-items: center;
        }

        .flare {
            flex: 1 1 400px;
        }

        .flare .crest {
            font-size: clamp(2.5rem, 5vw, 4rem);
            font-weight: 800;
            margin: 0 0 1.5rem 0;
            line-height: 1.15;
            white-space: normal;
            letter-spacing: -0.02em;
        }

        .flare .fur {
            font-size: 1.125rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 2.5rem;
            word-break: keep-all;
            max-width: 500px;
        }

        .spark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.75rem;
            background: var(--p);
            color: #ffffff;
            padding: 1.125rem 2.5rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.125rem;
            transition: all 0.25s ease;
            border: none;
            cursor: pointer;
            box-shadow: 0 8px 16px rgba(109, 111, 234, 0.3);
        }

        .spark:hover {
            background: var(--p-dark);
            transform: translateY(-3px);
            box-shadow: 0 12px 24px rgba(109, 111, 234, 0.4);
        }

        /* 纯CSS绘制的开发者浏览器Mockup */
        .flare-visual {
            flex: 1 1 400px;
            display: flex;
            justify-content: center;
            perspective: 1200px;
        }

        .browser-mockup {
            width: 100%;
            max-width: 540px;
            background: rgba(15, 15, 25, 0.6);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
            transform: rotateY(-12deg) rotateX(6deg);
            transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }

        .browser-mockup:hover {
            transform: rotateY(0deg) rotateX(0deg);
        }

        .browser-apex {
            height: 36px;
            background: rgba(0, 0, 0, 0.4);
            display: flex;
            align-items: center;
            padding: 0 1rem;
            gap: 8px;
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }

        .browser-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #fc615d;
        }

        .browser-dot:nth-child(2) { background: #fdbc40; }
        .browser-dot:nth-child(3) { background: #34c84a; }

        .browser-body {
            padding: 1.5rem;
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
            color: #73d0ff;
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .code-line { display: block; margin-bottom: 0.5rem; }
        .code-keyword { color: #ff8b39; }
        .code-string { color: #bae67e; }

        /* 公共区块样式 */
        .biome, .hearth, .globe {
            padding: 6rem 1.5rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .globe-crest {
            text-align: center;
            font-size: 2.5rem;
            font-weight: 700;
            margin: 0 0 4rem 0;
            color: var(--text);
            letter-spacing: -0.01em;
        }

        /* 2. 下一代 F12 控制台 (角色:detail -> article) */
        .biome {
            background: var(--bg);
        }

        .nexus {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2rem;
        }

        .ember {
            background: #ffffff;
            border-radius: var(--radius);
            padding: 2.5rem;
            box-shadow: var(--shadow);
            border: 1px solid rgba(0, 0, 0, 0.04);
            display: flex;
            flex-direction: column;
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .ember:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(109, 111, 234, 0.2);
        }

        .paw {
            width: 56px;
            height: 56px;
            background: var(--p-light);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            color: var(--p);
        }

        .paw svg {
            width: 28px;
            height: 28px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .ember .crest {
            font-size: 1.25rem;
            margin: 0 0 1rem 0;
            font-weight: 600;
        }

        .ember .fur {
            color: var(--text-muted);
            margin: 0;
            flex-grow: 1;
        }

        /* 3. 视觉化 CSS 布局调试 (角色:detail -> section) */
        .hearth {
            background: var(--bg-alt);
            border-radius: var(--radius-lg);
            margin-bottom: 6rem;
            align-items: center;
            gap: 4rem;
        }

        .hearth-fur {
            flex: 1 1 360px;
        }

        .hearth-fur .crest {
            font-size: 2.5rem;
            font-weight: 700;
            margin: 0 0 1.5rem 0;
            line-height: 1.2;
        }

        .hearth-fur .fur {
            font-size: 1.125rem;
            color: var(--text-muted);
            margin: 0;
        }

        .hearth-visual {
            flex: 1 1 360px;
            position: relative;
        }

        /* 纯CSS构建的 CSS Grid 检查器演示动效 */
        .grid-demo {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            grid-template-rows: repeat(2, 100px);
            gap: 12px;
            background: #ffffff;
            padding: 24px;
            border-radius: var(--radius);
            box-shadow: 0 20px 40px rgba(0,0,0,0.08);
            border: 2px dashed rgba(109, 111, 234, 0.4);
            position: relative;
        }

        .grid-overlay {
            position: absolute;
            inset: 0;
            background: repeating-linear-gradient(
                90deg,
                transparent,
                transparent calc(33.333% - 1px),
                rgba(109, 111, 234, 0.2) calc(33.333% - 1px),
                rgba(109, 111, 234, 0.2) 33.333%
            );
            pointer-events: none;
            border-radius: var(--radius);
        }

        .grid-cell {
            background: var(--p-light);
            border: 1px solid rgba(109, 111, 234, 0.3);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: monospace;
            color: var(--p);
            font-size: 0.85rem;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .grid-cell:hover {
            background: var(--p);
            color: #ffffff;
            transform: scale(1.02);
        }

        .grid-cell:nth-child(1) { grid-column: span 2; }
        .grid-cell:nth-child(4) { grid-column: span 3; height: 60px; }
        
        .code-glint {
            position: absolute;
            bottom: -20px;
            left: 50%;
            transform: translateX(-50%);
            background: #1a1a24;
            color: #fff;
            padding: 8px 16px;
            border-radius: 20px;
            font-family: monospace;
            font-size: 0.85rem;
            box-shadow: 0 4px 10px rgba(0,0,0,0.15);
        }

        /* 4. 拥抱实验性 Web API (角色:capability -> aside) */
        .globe {
            text-align: center;
            padding-bottom: 8rem;
        }

        .den {
            max-width: 800px;
            margin: 0 auto 3rem;
        }

        .den .crest {
            font-size: 2.5rem;
            font-weight: 700;
            margin: 0 0 1.5rem 0;
        }

        .den .fur {
            font-size: 1.125rem;
            color: var(--text-muted);
            margin: 0;
        }

        .api-nexus {
            justify-content: center;
            gap: 1rem;
        }

        .twig {
            background: var(--bg-alt);
            padding: 0.875rem 1.75rem;
            border-radius: 50px;
            font-family: ui-monospace, monospace;
            color: var(--text);
            font-weight: 600;
            border: 1px solid rgba(0,0,0,0.05);
            transition: all 0.25s ease;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .twig::before {
            content: '';
            width: 8px;
            height: 8px;
            background: var(--p);
            border-radius: 50%;
        }

        .twig:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow);
            border-color: rgba(109, 111, 234, 0.3);
            color: var(--p);
        }

        /* 页脚区域 (继承) */
        .root {
            background: #15141a;
            color: #aab;
            padding: 5rem 1.5rem 3rem;
        }

        .ash {
            max-width: 1200px;
            margin: 0 auto;
            flex-direction: column;
            gap: 2rem;
            align-items: center;
        }

        .ash .crest {
            font-size: 1.75rem;
            color: #ffffff;
            margin: 0;
            font-weight: 800;
            letter-spacing: -0.5px;
        }

        .tail {
            gap: 2.5rem;
            justify-content: center;
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .tail .trail {
            color: #889;
            text-decoration: none;
            font-size: 0.95rem;
            transition: color 0.25s ease;
        }

        .tail .trail:hover {
            color: #ffffff;
        }

        .copyright {
            font-size: 0.85rem;
            color: #556;
            margin-top: 2rem;
            text-align: center;
            width: 100%;
            border-top: 1px solid rgba(255,255,255,0.05);
            padding-top: 2rem;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .blaze { padding: 5rem 1.5rem; }
            .flare .crest { font-size: 3rem; }
            .hearth { padding: 4rem 2rem; }
        }

        @media (max-width: 768px) {
            .skulk { display: none; /* 移动端简化导航，实际项目中由JS控制展开 */ }
            .aurora, .hearth { flex-direction: column; text-align: center; }
            .flare { display: flex; flex-direction: column; align-items: center; }
            .flare .fur { margin-left: auto; margin-right: auto; }
            .hearth-fur { text-align: center; }
            .nexus { grid-template-columns: 1fr; }
            .browser-mockup { transform: none; box-shadow: 0 10px 30px rgba(0,0,0,0.3); }
            .tail { flex-direction: column; gap: 1rem; align-items: center; }
        }