/* 站点视觉变量 */
        :root {
            --color-primary: #f6d854;
            --color-primary-hover: #e5c742;
            --color-dark: #1f2937;
            --color-text: #4b5563;
            --color-text-light: #6b7280;
            --color-bg: #f9fafb;
            --color-surface: #ffffff;
            --color-border: #e5e7eb;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 8px;
            --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
            --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 20px 40px -10px rgba(0, 0, 0, 0.1), 0 8px 16px -8px rgba(0, 0, 0, 0.05);
            --transition: 0.35s ease;
        }

        /* 基础重置 */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        img, svg {
            display: block;
            max-width: 100%;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        /* 强制文本换行规范 */
        .prose-wrap,
        h1, h2, h3, p, span, a {
            word-break: break-word;
            overflow-wrap: break-word;
        }
        
        p {
            word-break: keep-all;
        }

        h1, h2, h3 {
            white-space: normal;
            color: var(--color-dark);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        /* 导航栏复用样式 */
        .crown-folder {
            background-color: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .spine {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            max-width: 1280px;
            margin: 0 auto;
            padding: 1rem 5vw;
        }

        .crest {
            min-width: 0;
            display: flex;
            align-items: center;
        }

        .crest img {
            height: 32px;
            width: auto;
        }

        .roster {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 2rem;
            min-width: 0;
        }

        .spine-tie {
            font-weight: 500;
            font-size: 1rem;
            color: var(--color-text);
            position: relative;
            padding: 0.5rem 0;
        }

        .spine-tie:hover {
            color: var(--color-dark);
        }

        .spine-tie.active {
            color: var(--color-dark);
            font-weight: 600;
        }

        .spine-tie.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background-color: var(--color-primary);
            border-radius: 2px;
        }

        /* 按钮与行动入口语法 */
        .stamp-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 1rem 2rem;
            font-weight: 600;
            font-size: 1.125rem;
            color: var(--color-dark);
            background-color: var(--color-primary);
            border-radius: var(--radius-md);
            box-shadow: 0 4px 14px rgba(246, 216, 84, 0.4);
            transform: translateY(0);
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }

        .stamp-primary:hover,
        .stamp-primary:focus {
            background-color: var(--color-primary-hover);
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(246, 216, 84, 0.5);
        }
        
        .stamp-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 1rem 2rem;
            font-weight: 600;
            font-size: 1.125rem;
            color: var(--color-dark);
            background-color: transparent;
            border-radius: var(--radius-md);
            border: 2px solid var(--color-border);
            transform: translateY(0);
            transition: var(--transition);
        }
        
        .stamp-ghost:hover {
            border-color: var(--color-dark);
            transform: translateY(-3px);
        }

        /* ================= 页面主体结构变体 ================= */

        /* Block 1: Intro (Hero变体) - WPS AI重塑办公想象力 */
        .cover-folder {
            min-height: 85vh;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            padding: 6rem 5vw;
            background: linear-gradient(135deg, #fefce8 0%, #fff7d6 50%, #fefce8 100%);
            position: relative;
            overflow: hidden;
        }

        .cover-folder::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 100%;
            background: radial-gradient(circle at 80% 20%, rgba(255,255,255,0.8) 0%, transparent 60%);
            z-index: 1;
        }

        .cover-sleeve {
            flex: 1 1 50%;
            min-width: 0;
            max-width: 600px;
            z-index: 2;
            padding-right: 2rem;
        }

        .rubric-cover {
            font-size: clamp(2.5rem, 4vw, 4rem);
            margin-bottom: 1.5rem;
        }
        
        .rubric-highlight {
            background: linear-gradient(120deg, var(--color-dark) 0%, #4b5563 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            position: relative;
            display: inline-block;
        }
        
        .rubric-highlight::after {
            content: '';
            position: absolute;
            bottom: 8px;
            left: 0;
            width: 100%;
            height: 12px;
            background-color: rgba(246, 216, 84, 0.5);
            z-index: -1;
            border-radius: 4px;
        }

        .prose-cover {
            font-size: clamp(1.125rem, 2vw, 1.25rem);
            color: var(--color-text);
            margin-bottom: 2.5rem;
            max-width: 500px;
        }
        
        .cover-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            min-width: 0;
        }

        /* Hero 创意面板浮动区 */
        .cover-float-batch {
            flex: 1 1 40%;
            min-width: 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            position: relative;
            z-index: 2;
            min-height: 400px;
        }

        .slide-float {
            position: absolute;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            box-shadow: var(--shadow-lg);
            border: 1px solid rgba(255, 255, 255, 0.9);
            transform: translateY(0);
            transition: var(--transition);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem;
            min-width: 220px;
        }
        
        .slide-float:hover {
            transform: translateY(-8px) scale(1.02);
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
        }

        .slide-float-1 {
            top: 10%;
            left: 0;
            animation: float-anim-1 6s ease-in-out infinite;
        }

        .slide-float-2 {
            top: 45%;
            right: 0;
            background: var(--color-dark);
            color: var(--color-surface);
            animation: float-anim-2 8s ease-in-out infinite reverse;
        }
        
        .slide-float-2 .prose-float {
            color: var(--color-bg);
        }

        .slide-float-3 {
            bottom: 5%;
            left: 15%;
            animation: float-anim-3 7s ease-in-out infinite;
        }

        .glyph-float {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--color-primary);
            border-radius: 12px;
            color: var(--color-dark);
        }
        
        .slide-float-2 .glyph-float {
            background: rgba(255,255,255,0.1);
            color: var(--color-primary);
        }

        .prose-float {
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-dark);
            flex: 1;
            min-width: 0;
        }

        @keyframes float-anim-1 {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-15px); }
        }
        @keyframes float-anim-2 {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(20px); }
        }
        @keyframes float-anim-3 {
            0%, 100% { transform: translateY(0) rotate(0); }
            50% { transform: translateY(-10px) rotate(2deg); }
        }

        /* Block 2: Capability (Writing) - 灵感涌现 */
        .binder-writing {
            padding: 8rem 5vw;
            display: flex;
            flex-wrap: wrap;
            gap: 4rem;
            align-items: center;
            max-width: 1440px;
            margin: 0 auto;
        }

        .plate-sleeve {
            flex: 1 1 45%;
            min-width: 0;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 8px solid var(--color-surface);
            transform: translateY(0);
            transition: var(--transition);
        }
        
        .plate-sleeve:hover {
            transform: translateY(-5px);
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
        }

        .batch-writing {
            flex: 1 1 45%;
            min-width: 0;
            display: flex;
            flex-wrap: wrap;
            flex-direction: column;
        }

        .rubric-folder {
            font-size: clamp(2rem, 3vw, 2.5rem);
            margin-bottom: 1rem;
        }
        
        .prose-folder {
            font-size: 1.125rem;
            color: var(--color-text-light);
            margin-bottom: 3rem;
            max-width: 500px;
        }

        .sheet-writing {
            display: flex;
            flex-wrap: wrap;
            align-items: flex-start;
            gap: 1.5rem;
            padding: 1.5rem;
            background: var(--color-surface);
            border-radius: var(--radius-md);
            margin-bottom: 1.5rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            transform: translateY(0);
            transition: var(--transition);
        }

        .sheet-writing:hover {
            transform: translateX(10px);
            box-shadow: var(--shadow-md);
            border-color: var(--color-primary);
        }

        .glyph-pin {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: linear-gradient(135deg, #fff7d6 0%, #fefce8 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #d97706; /* 暖橙色图标搭配黄色基调 */
            flex-shrink: 0;
            border: 1px solid rgba(246, 216, 84, 0.3);
        }

        .cell-sleeve {
            flex: 1;
            min-width: 0;
        }

        .rubric-cell {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-dark);
            margin-bottom: 0.5rem;
        }

        .prose-cell {
            color: var(--color-text);
            font-size: 0.95rem;
        }

        /* Block 3: Capability (Presentation) - PPT一键生成 */
        .canvas-presentation {
            padding: 8rem 5vw;
            background-color: var(--color-surface);
            display: flex;
            flex-wrap: wrap;
            gap: 4rem;
            align-items: center;
            max-width: 1440px;
            margin: 0 auto;
        }

        .batch-presentation {
            flex: 1 1 40%;
            min-width: 0;
        }

        .ui-stage {
            flex: 1 1 50%;
            min-width: 0;
            position: relative;
            min-height: 500px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        /* 纯CSS/SVG实现的数据UI承载 */
        .slide-mock {
            width: 80%;
            max-width: 450px;
            aspect-ratio: 16/9;
            background: var(--color-surface);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--color-border);
            position: absolute;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            overflow: hidden;
        }
        
        .slide-mock-bg {
            transform: scale(0.9) translateY(-30px);
            opacity: 0.6;
            z-index: 1;
        }
        
        .slide-mock-mid {
            transform: scale(0.95) translateY(-15px);
            opacity: 0.8;
            z-index: 2;
        }
        
        .slide-mock-front {
            transform: scale(1) translateY(0);
            z-index: 3;
            border-color: var(--color-primary);
            box-shadow: 0 25px 50px -12px rgba(246, 216, 84, 0.2);
        }
        
        .ui-stage:hover .slide-mock-bg { transform: scale(0.85) translateY(-50px) translateX(-20px) rotate(-3deg); opacity: 0.5; }
        .ui-stage:hover .slide-mock-mid { transform: scale(0.9) translateY(-25px) translateX(20px) rotate(2deg); opacity: 0.7; }
        .ui-stage:hover .slide-mock-front { transform: scale(1.05) translateY(10px); }

        .mock-crown {
            height: 20%;
            background: linear-gradient(90deg, #fefce8, #fff7d6);
            padding: 1rem;
            display: flex;
            align-items: center;
        }
        
        .mock-rubric {
            height: 12px;
            width: 60%;
            background: var(--color-primary);
            border-radius: 6px;
        }
        
        .mock-body {
            flex: 1;
            padding: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }
        
        .mock-col {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        
        .mock-line {
            height: 8px;
            background: var(--color-border);
            border-radius: 4px;
            width: 100%;
        }
        .mock-line.short { width: 70%; }
        .mock-line.shorter { width: 40%; }
        
        .mock-plate {
            flex: 1;
            background: var(--color-bg);
            border-radius: var(--radius-sm);
            border: 2px dashed var(--color-border);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* Block 4: Capability (Data) - 与数据对话 */
        .ream-data {
            padding: 8rem 5vw;
            background: linear-gradient(to bottom, var(--color-bg), var(--color-surface));
            display: flex;
            flex-wrap: wrap;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        
        .ream-data .rubric-folder,
        .ream-data .prose-folder {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }
        
        .data-dashboard {
            width: 100%;
            max-width: 1000px;
            margin-top: 3rem;
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--color-border);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            position: relative;
        }
        
        .data-crown {
            background: var(--color-bg);
            border-bottom: 1px solid var(--color-border);
            padding: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        .data-dot { width: 12px; height: 12px; border-radius: 50%; background: #e5e7eb; }
        .data-dot:nth-child(1) { background: #fca5a5; }
        .data-dot:nth-child(2) { background: #fcd34d; }
        .data-dot:nth-child(3) { background: #86efac; }
        
        .data-grid {
            display: grid;
            grid-template-columns: 50px repeat(4, 1fr);
            grid-auto-rows: 40px;
            gap: 1px;
            background: var(--color-border);
            padding: 1px;
        }
        
        .data-cell {
            background: var(--color-surface);
            display: flex;
            align-items: center;
            padding: 0 1rem;
            font-size: 0.875rem;
            color: var(--color-text);
        }
        
        .data-cell.header {
            background: var(--color-bg);
            font-weight: 600;
            justify-content: center;
            color: var(--color-text-light);
        }
        
        /* 交互式 AI 提示框 UI */
        .prompt-float {
            position: absolute;
            bottom: 2rem;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-dark);
            color: var(--color-surface);
            padding: 1rem 1.5rem;
            border-radius: 30px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem;
            box-shadow: 0 15px 30px rgba(0,0,0,0.2);
            width: 80%;
            max-width: 600px;
            border: 1px solid rgba(255,255,255,0.1);
        }
        
        .prompt-prose {
            flex: 1;
            min-width: 0;
            font-family: monospace;
            font-size: 1rem;
            white-space: nowrap;
            overflow: hidden;
            border-right: 2px solid var(--color-primary);
            animation: typing 4s steps(30, end) infinite, blink-caret 0.75s step-end infinite;
        }
        
        @keyframes typing {
            0%, 20% { width: 0; }
            80%, 100% { width: 100%; }
        }
        @keyframes blink-caret {
            from, to { border-color: transparent; }
            50% { border-color: var(--color-primary); }
        }

        /* 页脚区域复用视觉壳层 */
        .root-folder {
            background-color: var(--color-surface);
            border-top: 1px solid var(--color-border);
            padding: 4rem 5vw 2rem;
            text-align: center;
        }
        
        .root-brand {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-dark);
            margin-bottom: 1rem;
            letter-spacing: -0.05em;
        }
        
        .root-prose {
            color: var(--color-text-light);
            font-size: 0.875rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1.5rem;
            margin-top: 2rem;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .cover-folder { padding: 4rem 5vw; }
            .rubric-cover { font-size: 2.5rem; }
            .binder-writing, .canvas-presentation { padding: 5rem 5vw; gap: 3rem; }
        }

        @media (max-width: 768px) {
            .roster { display: none; /* 移动端简化导航，避免复杂菜单重写 */ }
            .cover-sleeve, .cover-float-batch,
            .plate-sleeve, .batch-writing,
            .batch-presentation, .ui-stage {
                flex: 1 1 100%;
            }
            .cover-sleeve { padding-right: 0; margin-bottom: 3rem; text-align: center; }
            .cover-actions { justify-content: center; }
            .binder-writing { flex-direction: column-reverse; }
            .slide-float-1 { top: 0; left: 10%; }
            .slide-float-2 { top: auto; bottom: 0; right: 10%; }
            .prompt-float { width: 90%; flex-direction: column; text-align: center; border-radius: 16px; }
            .prompt-prose { white-space: normal; animation: none; border: none; width: 100%; }
            .data-grid { overflow-x: auto; }
        }

.spine-crown-folder{
            background-color: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            border-bottom: 1px solid #e5e7eb;
        }

.spine-crown-folder .spine-spine{
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            height: 80px;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 5vw;
        }

.spine-crown-folder .spine-spine > *{
            min-width: 0;
        }

.spine-crown-folder .spine-crest{
            display: flex;
            align-items: center;
            height: 40px;
        }

.spine-crown-folder .spine-crest img{
            height: 100%;
            width: auto;
        }

.spine-crown-folder .spine-roster{
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            align-items: center;
        }

.spine-crown-folder .spine-roster > *{
            min-width: 0;
        }

.spine-crown-folder .spine-spine-tie{
            font-weight: 500;
            font-size: 1rem;
            color: #4b5563;
            padding: 0.5rem 0.75rem;
            border-radius: 8px;
        }

.spine-crown-folder .spine-spine-tie:hover{
            color: #1f2937;
            background-color: rgba(0, 0, 0, 0.04);
        }

.spine-crown-folder .spine-spine-tie.active{
            color: #1f2937;
            background-color: #f6d854;
        }

@media (max-width: 768px){.spine-crown-folder .spine-spine{
                flex-direction: column;
                height: auto;
                padding: 1rem 5vw;
                gap: 1rem;
            }}

.spine-crown-folder {
    background: rgb(255, 255, 255);
    background-image: none;
}

.annex-root-annex {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--color-text);
}
.annex-root-annex,
.annex-root-annex *,
.annex-root-annex *::before,
.annex-root-annex *::after {
    box-sizing: border-box;
}

.annex-root-annex [role="navigation"],
.annex-root-annex div,
.annex-root-annex section,
.annex-root-annex article,
.annex-root-annex aside,
.annex-root-annex p,
.annex-root-annex h1,
.annex-root-annex h2,
.annex-root-annex h3,
.annex-root-annex h4,
.annex-root-annex h5,
.annex-root-annex h6,
.annex-root-annex a {
    margin: 0;
    padding: 0;
    font: inherit;
    color: inherit;
    letter-spacing: inherit;
    line-height: inherit;
}

.annex-root-annex p,
.annex-root-annex h1,
.annex-root-annex h2,
.annex-root-annex h3,
.annex-root-annex h4,
.annex-root-annex h5,
.annex-root-annex h6 {
    text-decoration: none;
}

.annex-root-annex img {
    display: block;
    max-width: 100%;
    height: auto;
    border: 0;
}

.annex-root-annex {
    box-shadow: none;
    filter: none;
    text-shadow: none;
    background-image: none;
    border-top: none;
    border-left: none;
    border-right: none;
    outline: none;
}

.annex-root-annex a,
.annex-root-annex a:hover,
.annex-root-annex a:focus,
.annex-root-annex a:active {
    background: transparent;
    box-shadow: none;
    outline: none;
    text-decoration: none;
}

.annex-root-annex .annex-grid-binder{
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }

.annex-root-annex .annex-center-sleeve{
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 5vw;
        }

.annex-root-annex{
            background-color: #f9fafb;
            padding: 6rem 0 2rem;
            border-top: 1px solid #e5e7eb;
        }

.annex-root-annex .annex-root-brand{
            font-size: 1.5rem;
            font-weight: 800;
            color: #1f2937;
            margin-bottom: 1rem;
        }

.annex-root-annex .annex-root-links{
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

.annex-root-annex .annex-root-tie{
            color: #6b7280;
        }

.annex-root-annex .annex-root-tie:hover{
            color: #e5c742;
        }

.annex-root-annex .annex-copyright-band{
            margin-top: 4rem;
            padding-top: 2rem;
            border-top: 1px solid #e5e7eb;
            text-align: center;
            color: #6b7280;
            font-size: 0.875rem;
        }