/* ==========================================================================
   Abilityfield (能者) 企业官网核心样式表
   设计风格：整体采用中关村科金 (ZKJ.com) 纯净亮色商务科技风格 (Glacier Bright Theme)
   主要配色：科技蓝 (#005BFF)、深邃蓝 (#0A1128)、冰川白 (#FFFFFF)
   ========================================================================== */

/* 1. 核心设计系统与全局变量 */
:root {
    /* 颜色定义 (全亮色 ZKJ 风格) */
    --bg-dark: #ffffff;           /* 主页面背景：纯净白 */
    --bg-darker: #f4f7fc;         /* 次级背景：冰川浅灰蓝 */
    --bg-light: #ffffff;
    --bg-card: #ffffff;           /* 悬浮卡片背景：纯白 */
    --bg-card-inner: #f8fafc;     /* 对话框/面板内部背景：极浅灰 */
    --bg-card-light: #ffffff;
    
    --text-primary: #0a1128;      /* 全站主标题/正文字：中关村科金标志性深邃蓝 */
    --text-primary-dark: #0a1128;
    --text-muted: #64748b;        /* 辅助字：深灰色 */
    --text-muted-dark: #64748b;
    --text-dark: #0a1128;
    
    --zkj-blue: #005bff;          /* 中关村科金科技蓝 */
    --cyan: #0284c7;              /* 天蓝色 */
    --purple: #4f46e5;            /* 靛蓝色 */
    --pink: #db2777;
    --amber: #d97706;
    --success: #059669;           /* 亮绿色 */
    
    /* 渐变色 */
    --primary-gradient: linear-gradient(135deg, #005bff 0%, #4f46e5 100%);
    --accent-gradient: linear-gradient(135deg, #005bff 0%, #0284c7 100%);
    --text-gradient: linear-gradient(135deg, #0a1128 30%, #005bff 100%);
    --cyan-glow: rgba(0, 91, 255, 0.05);
    
    /* 阴影与边框 */
    --border-glass: rgba(0, 91, 255, 0.08);       /* 极薄亮蓝边框 */
    --border-glass-bright: rgba(0, 91, 255, 0.15);/* 高亮超细边框 */
    --border-light: rgba(0, 91, 255, 0.06);
    --shadow-glow: 0 0 20px rgba(0, 91, 255, 0.08);
    --shadow-card: 0 10px 40px rgba(0, 91, 255, 0.04); /* 柔和浅蓝大阴影 */
    --shadow-hover: 0 20px 50px rgba(0, 91, 255, 0.1);
    
    /* 字体 */
    --font-primary: 'Outfit', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* 2. 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-primary);
    overflow-x: hidden;
    line-height: 1.6;
}

/* 屏蔽星空 Canvas (ZKJ 为纯净亮色，不需要星空背景) */
#starfield-bg {
    display: none;
}

/* 容器与通用排版 */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

a {
    color: inherit;
    text-decoration: none;
    transition: all 0.3s ease;
}

/* 渐变色文字 */
.text-gradient {
    background: linear-gradient(135deg, #0a1128 20%, #005bff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 亮色科技感高亮文本 */
.highlight {
    color: var(--zkj-blue);
    text-shadow: 0 0 10px rgba(0, 91, 255, 0.15);
}

/* 亮色徽章 Badge */
.badge {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    background: rgba(0, 91, 255, 0.05);
    border: 1px solid rgba(0, 91, 255, 0.15);
    color: var(--zkj-blue);
    margin-bottom: 20px;
    letter-spacing: 1px;
}

/* 板块头部 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* 亮色卡片面板 */
.glass-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    box-shadow: var(--shadow-card);
    transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

.glass-panel:hover {
    border-color: var(--border-glass-bright);
    box-shadow: var(--shadow-hover);
}

/* 内部面板 */
.glass-panel-inner {
    background: var(--bg-card-inner);
    border: 1px solid rgba(0, 91, 255, 0.06);
    border-radius: 12px;
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 24px;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
}

.btn-primary {
    background: var(--primary-gradient);
    color: #ffffff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 91, 255, 0.3);
}

.btn-glow {
    position: relative;
    overflow: hidden;
}

.btn-glow::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transform: rotate(45deg);
    transition: all 0.5s ease;
}

.btn-glow:hover::after {
    left: 120%;
}

.btn-outline {
    background: transparent;
    border: 1px solid rgba(0, 91, 255, 0.2);
    color: var(--zkj-blue);
}

.btn-outline:hover {
    background: rgba(0, 91, 255, 0.03);
    border-color: var(--zkj-blue);
    transform: translateY(-2px);
}

.btn-large {
    padding: 14px 32px;
    font-size: 1.05rem;
}

.btn-sm {
    padding: 6px 16px;
    font-size: 0.85rem;
}

.btn-full-width {
    width: 100%;
}

/* ==========================================================================
   3. 导航栏 (Navbar)
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-glass);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 20px rgba(0, 91, 255, 0.03);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.3rem;
    color: var(--text-primary);
}

.logo-svg {
    width: 32px;
    height: 32px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-muted);
}

.nav-link:hover, .nav-link.active {
    color: var(--zkj-blue);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

/* ==========================================================================
   4. 首页 (Hero Section)
   ========================================================================== */
.hero-section {
    padding-top: 180px;
    padding-bottom: 120px;
    min-height: 95vh;
    display: flex;
    align-items: center;
    position: relative;
    background: radial-gradient(circle at 50% 30%, rgba(0, 91, 255, 0.05) 0%, transparent 60%);
}

.hero-container-centered {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: center;
}

.hero-content-centered {
    text-align: center;
    max-width: 1000px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-content-centered h1 {
    font-size: 3.8rem;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 24px;
    letter-spacing: -1px;
    color: var(--text-primary);
}

.hero-desc-main-centered {
    font-size: 1.15rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 48px;
    max-width: 800px;
}

/* 横向三栏核心价值网格 */
.hero-changes-section {
    width: 100%;
    margin-bottom: 50px;
}

.hero-changes-title-centered {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 30px;
    position: relative;
}

.hero-changes-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    text-align: left;
}

.hero-change-card {
    padding: 24px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.45);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(0, 91, 255, 0.08);
    box-shadow: 0 8px 30px rgba(0, 91, 255, 0.03);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.hero-change-card:hover {
    transform: translateY(-6px);
    border-color: var(--zkj-blue);
    background: #ffffff;
    box-shadow: 0 15px 35px rgba(0, 91, 255, 0.08);
}

.hero-change-card .card-icon {
    font-size: 1.8rem;
    display: flex;
    align-items: center;
}

.hero-change-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.hero-change-card p {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.55;
}

.hero-buttons-centered {
    display: flex;
    gap: 20px;
    justify-content: center;
}



/* ==========================================================================
   5. 演示中心 (Demo Section)
   ========================================================================== */
.demo-section {
    padding: 100px 0;
    background-color: var(--bg-darker);
}

.demo-card {
    min-height: 560px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.08);
}

/* Tabs */
.demo-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    border-bottom: 1px solid rgba(0, 91, 255, 0.08);
    background: #fcfdfe;
}

.tab-btn {
    background: transparent;
    border: none;
    padding: 20px;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    transition: all 0.3s ease;
    border-bottom: 2px solid transparent;
}

.tab-btn:hover {
    color: var(--zkj-blue);
    background: rgba(0, 91, 255, 0.01);
}

.tab-btn.active {
    color: var(--zkj-blue);
    background: #ffffff;
    border-bottom-color: var(--zkj-blue);
}

.demo-content {
    flex: 1;
    padding: 24px;
}

.tab-pane {
    display: none;
    height: 100%;
}

.tab-pane.active {
    display: block;
}

/* --- Tab 1: 智能对话 & 链路追踪 (亮色重写) --- */
.chat-demo-wrapper {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 20px;
    height: 480px;
}

.chat-window {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.06);
}

.chat-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    border-bottom: 1px solid rgba(0, 91, 255, 0.06);
    background: #fafbfe;
}

.chat-bot-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #ffffff;
}

.chat-bot-name {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}

.chat-bot-status {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

.pulse-dot {
    width: 6px;
    height: 6px;
    background: var(--success);
    border-radius: 50%;
    animation: scalePulse 1.5s infinite alternate;
}

.chat-messages {
    flex: 1;
    padding: 16px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
    background: #fafbfc;
}

.msg {
    display: flex;
    gap: 12px;
    max-width: 80%;
    animation: msgFadeIn 0.3s ease forwards;
}

.bot-msg {
    align-self: flex-start;
}

.user-msg {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.msg-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 600;
    flex-shrink: 0;
    color: var(--zkj-blue);
}

.user-msg .msg-avatar {
    background: var(--zkj-blue);
    color: #ffffff;
    border: none;
}

.msg-content {
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.06);
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 0.9rem;
    color: var(--text-primary);
    box-shadow: 0 4px 12px rgba(0, 91, 255, 0.02);
}

.user-msg .msg-content {
    background: var(--zkj-blue);
    border-color: var(--zkj-blue);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(0, 91, 255, 0.15);
}

/* 快捷问题 */
.quick-questions {
    margin-top: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.quick-q-btn {
    background: rgba(0, 91, 255, 0.03);
    border: 1px solid rgba(0, 91, 255, 0.1);
    color: var(--zkj-blue);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.quick-q-btn:hover {
    background: rgba(0, 91, 255, 0.08);
    border-color: var(--zkj-blue);
}

.chat-input-area {
    padding: 16px;
    border-top: 1px solid rgba(0, 91, 255, 0.06);
    display: flex;
    gap: 12px;
    background: #ffffff;
}

.chat-input-area input {
    flex: 1;
    background: #f8fafc;
    border: 1px solid rgba(0, 91, 255, 0.1);
    border-radius: 8px;
    padding: 10px 16px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
}

.chat-input-area input:focus {
    outline: none;
    border-color: var(--zkj-blue);
    background: #ffffff;
}

/* 跟踪面板 Trace (亮色重置) */
.trace-panel {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.06);
}

.trace-header {
    padding: 16px;
    border-bottom: 1px solid rgba(0, 91, 255, 0.06);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #fafbfe;
}

.trace-header h3 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}

.trace-timer {
    font-size: 0.8rem;
    color: var(--zkj-blue);
    font-weight: 700;
}

.trace-body {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    background: #fafbfc;
}

.trace-placeholder {
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: var(--text-muted);
    padding: 20px;
}

.trace-placeholder-icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
    opacity: 0.4;
}

/* 跟踪节点样式 */
.trace-node {
    position: relative;
    padding-left: 32px;
    padding-bottom: 24px;
    animation: traceStepIn 0.4s ease forwards;
}

.trace-node::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 4px;
    width: 2px;
    height: 100%;
    background: #e2e8f0;
    z-index: 1;
}

.trace-node.active::before {
    background: linear-gradient(180deg, var(--zkj-blue) 0%, #e2e8f0 100%);
}

.trace-node:last-child::before {
    display: none;
}

.trace-node-icon {
    position: absolute;
    left: 0;
    top: 0;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #ffffff;
    border: 2px solid #cbd5e1;
    z-index: 2;
    transition: all 0.3s ease;
}

.trace-node.active .trace-node-icon {
    border-color: var(--zkj-blue);
    box-shadow: 0 0 10px rgba(0, 91, 255, 0.3);
    background: var(--zkj-blue);
}

.trace-node-content {
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.05);
    border-radius: 8px;
    padding: 10px 14px;
    box-shadow: 0 4px 10px rgba(0, 91, 255, 0.01);
}

.trace-node.active .trace-node-content {
    border-color: rgba(0, 91, 255, 0.15);
    background: rgba(0, 91, 255, 0.01);
}

.trace-node-title {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.trace-node-time {
    color: var(--zkj-blue);
    font-size: 0.75rem;
    font-weight: 600;
}

.trace-node-detail {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* --- Tab 2: 零代码工作流画布 (亮色重置) --- */
.workflow-demo-wrapper {
    display: grid;
    grid-template-columns: 240px 1fr 260px;
    gap: 20px;
    height: 480px;
}

.workflow-nodes-sidebar {
    padding: 16px;
    overflow-y: auto;
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.06);
}

.workflow-nodes-sidebar h4 {
    font-size: 0.95rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.node-items-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.node-drag-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    background: #fafbfc;
    border: 1px solid rgba(0, 91, 255, 0.05);
    border-radius: 8px;
    cursor: pointer;
}

.node-drag-item:hover {
    background: #ffffff;
    border-color: var(--zkj-blue);
    transform: translateX(2px);
    box-shadow: 0 4px 15px rgba(0, 91, 255, 0.05);
}

.node-icon {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.node-name {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-primary);
}

.node-desc {
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* 画布主区 */
.workflow-canvas-container {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid rgba(0, 91, 255, 0.06);
}

.canvas-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid rgba(0, 91, 255, 0.06);
    background: #fafbfe;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-primary);
}

.workflow-canvas {
    flex: 1;
    position: relative;
    background-color: #fcfdfe;
    background-image: 
        radial-gradient(rgba(0, 91, 255, 0.08) 1px, transparent 1px);
    background-size: 20px 20px;
    overflow: hidden;
}

/* 节点渲染 */
.workflow-node {
    position: absolute;
    width: 150px;
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.15);
    border-radius: 8px;
    z-index: 5;
    box-shadow: 0 10px 25px rgba(0, 91, 255, 0.05);
}

.workflow-node:hover {
    border-color: var(--zkj-blue);
    box-shadow: 0 10px 25px rgba(0, 91, 255, 0.1);
}

.workflow-node.selected {
    border-color: var(--purple);
    box-shadow: 0 0 12px rgba(79, 70, 229, 0.3);
}

.node-header-bar {
    padding: 6px 10px;
    font-size: 0.75rem;
    font-weight: 700;
    border-bottom: 1px solid rgba(0, 91, 255, 0.06);
    border-radius: 8px 8px 0 0;
}

.node-start .node-header-bar { background: rgba(5, 150, 105, 0.08); color: var(--success); }
.node-end .node-header-bar { background: rgba(239, 68, 68, 0.08); color: #EF4444; }
.node-custom-llm .node-header-bar { background: rgba(79, 70, 229, 0.08); color: var(--purple); }
.node-custom-rag .node-header-bar { background: rgba(0, 91, 255, 0.08); color: var(--zkj-blue); }
.node-custom-extractor .node-header-bar { background: rgba(219, 39, 119, 0.08); color: var(--pink); }
.node-custom-tool .node-header-bar { background: rgba(217, 151, 6, 0.08); color: var(--amber); }

.node-body-content {
    padding: 10px;
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* 属性面板 */
.workflow-properties-panel {
    padding: 16px;
    overflow-y: auto;
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.06);
}

.workflow-properties-panel h4 {
    font-size: 0.95rem;
    margin-bottom: 16px;
    border-bottom: 1px solid rgba(0, 91, 255, 0.06);
    padding-bottom: 8px;
    color: var(--text-primary);
}

.prop-content input[type="text"], .prop-content select, .prop-content textarea {
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.12);
    color: var(--text-primary);
}
.prop-content input[type="text"]:focus, .prop-content select:focus, .prop-content textarea:focus {
    border-color: var(--zkj-blue);
    box-shadow: 0 0 8px rgba(0, 91, 255, 0.1);
}

/* --- Tab 3: AI报表 & 看板生成 (亮色重置) --- */
.analytics-demo-wrapper {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.85fr);
    gap: 20px;
    min-height: 500px;
}

.analytics-dashboard {
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 500px;
    overflow: hidden;
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.06);
    padding: 20px;
    border-radius: 16px;
}

.dashboard-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    border-bottom: 1px solid rgba(0, 91, 255, 0.06);
    padding-bottom: 16px;
}

.dashboard-tabs {
    display: flex;
    align-items: center;
    gap: 8px;
}

.dash-tab {
    background: #f8fafc;
    border: 1px solid rgba(0, 91, 255, 0.08);
    border-radius: 999px;
    color: var(--text-muted);
    cursor: pointer;
    font-family: inherit;
    font-size: 0.78rem;
    font-weight: 700;
    padding: 8px 13px;
    transition: all 0.25s ease;
}

.dash-tab.active {
    background: var(--zkj-blue);
    color: #ffffff;
    border-color: var(--zkj-blue);
    box-shadow: 0 6px 14px rgba(0, 91, 255, 0.18);
}

.dashboard-time {
    color: var(--text-muted);
    font-size: 0.76rem;
    white-space: nowrap;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: stretch;
    flex: 1;
    gap: 14px;
    margin-top: 18px;
}

.metric-card {
    display: flex;
    flex-direction: column;
    min-width: 0;
    padding: 18px;
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.06);
    border-radius: 14px;
    box-shadow: 0 8px 22px rgba(0, 91, 255, 0.035);
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.metric-card:hover {
    border-color: rgba(0, 91, 255, 0.15);
    box-shadow: 0 10px 25px rgba(0, 91, 255, 0.04);
    transform: translateY(-2px);
}

.metric-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 8px;
    color: var(--text-primary);
    font-size: 0.8rem;
    font-weight: 700;
    line-height: 1.4;
}

.trend {
    flex-shrink: 0;
    border-radius: 999px;
    padding: 3px 7px;
    font-family: 'Outfit', sans-serif;
    font-size: 0.68rem;
    font-weight: 700;
}

.trend.up {
    background: rgba(16, 185, 129, 0.1);
    color: #059669;
}

.trend.stable {
    background: rgba(100, 116, 139, 0.1);
    color: #64748b;
}

.metric-value {
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    font-size: clamp(1.45rem, 2.2vw, 2rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin: 18px 0;
}

.metric-chart {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    height: 84px;
    margin-top: auto;
    padding-top: 10px;
    border-top: 1px dashed rgba(0, 91, 255, 0.08);
}

.chart-bar {
    flex: 1;
    min-width: 4px;
    border-radius: 5px 5px 2px 2px;
    background: linear-gradient(180deg, #0ea5e9 0%, #2563eb 100%);
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.12);
    transition: height 0.35s ease, opacity 0.2s ease;
}

/* AI 看板配置侧边栏 */
.analytics-sidebar {
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 500px;
    padding: 20px;
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.06);
    border-radius: 16px;
}

.analytics-sidebar h3 {
    color: var(--text-primary);
    font-size: 1.05rem;
    line-height: 1.35;
    margin-bottom: 8px;
}

.analytics-sidebar > p {
    color: var(--text-muted);
    font-size: 0.8rem;
    line-height: 1.65;
}

.ai-assistant-chat {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    margin-top: 14px;
    padding: 14px;
    background: #fafbfc;
    border: 1px solid rgba(0, 91, 255, 0.06);
    border-radius: 12px;
}

.assistant-msg {
    color: var(--text-primary);
    font-size: 0.78rem;
    line-height: 1.65;
}

.assistant-msg > span {
    color: var(--zkj-blue);
    font-weight: 700;
}

.assistant-prompts {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin-top: 12px;
}

.assistant-prompt-btn {
    width: 100%;
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.1);
    border-radius: 9px;
    color: var(--text-primary);
    cursor: pointer;
    font-family: inherit;
    font-size: 0.74rem;
    line-height: 1.45;
    padding: 8px 10px;
    text-align: left;
    white-space: normal;
    transition: all 0.2s ease;
}
.assistant-prompt-btn:hover {
    border-color: var(--zkj-blue);
    background: rgba(0, 91, 255, 0.02);
}

.assistant-input-wrapper {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: stretch;
    gap: 10px;
    margin-top: 12px;
}

.assistant-input-wrapper input {
    width: 100%;
    min-width: 0;
    background: #f8fafc;
    border: 1px solid rgba(0, 91, 255, 0.1);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.76rem;
    padding: 10px 12px;
}
.assistant-input-wrapper input:focus {
    outline: none;
    border-color: var(--zkj-blue);
    background: #ffffff;
    box-shadow: 0 0 0 3px rgba(0, 91, 255, 0.08);
}

.assistant-input-wrapper .btn {
    min-height: 42px;
    padding: 9px 14px;
    white-space: nowrap;
}

/* ==========================================================================
   6. 平台架构与“1+3”全景蓝图 (Architecture)
   ========================================================================== */
.architecture-section {
    padding: 100px 0;
    background: #ffffff;
}

.architecture-layers {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
    max-width: 800px;
    margin: 0 auto 80px auto;
}

.layer-card {
    width: 100%;
    padding: 24px 32px;
    text-align: center;
    position: relative;
    transform: perspective(800px) rotateX(10deg);
    transition: transform 0.5s ease;
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.08);
    box-shadow: 0 10px 30px rgba(0, 91, 255, 0.03);
    color: var(--text-primary);
}

.layer-card:hover {
    transform: perspective(800px) rotateX(0deg) translateY(-5px);
    border-color: var(--zkj-blue);
    box-shadow: 0 15px 40px rgba(0, 91, 255, 0.08);
}

.layer-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: #ffffff;
}

.layer-badge.purple { background: var(--purple); }
.layer-badge.cyan { background: var(--zkj-blue); }
.layer-badge.white { background: var(--text-primary); }

.layer-card h3 {
    margin-top: 8px;
    font-size: 1.4rem;
    margin-bottom: 8px;
}

.layer-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.layer-tech {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--zkj-blue);
}

.layer-arrow {
    font-size: 1.2rem;
    color: #cbd5e1;
    animation: floatArrow 1.5s infinite alternate;
}

.hubs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.hub-card {
    padding: 32px;
    text-align: center;
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.08);
    box-shadow: 0 10px 30px rgba(0, 91, 255, 0.03);
    transition: all 0.3s ease;
}

.hub-card:hover {
    transform: translateY(-8px);
    border-color: var(--zkj-blue);
    box-shadow: 0 15px 40px rgba(0, 91, 255, 0.08);
}

.hub-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.hub-card h4 {
    font-size: 1.15rem;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.hub-card p {
    font-size: 0.88rem;
    color: var(--text-muted);
}

/* ==========================================================================
   7. 平台核心优势 (Advantages)
   ========================================================================== */
.advantages-section {
    padding: 100px 0;
    background-color: var(--bg-darker);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.advantage-card {
    padding: 40px 32px;
    text-align: center;
    position: relative;
    overflow: hidden;
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.08);
    box-shadow: 0 10px 30px rgba(0, 91, 255, 0.03);
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: transparent;
    transition: all 0.3s ease;
}

.advantage-card:hover {
    border-color: var(--zkj-blue);
    box-shadow: 0 15px 40px rgba(0, 91, 255, 0.08);
}

.advantage-card:hover::before {
    background: var(--primary-gradient);
}

.adv-visual {
    width: 90px;
    height: 90px;
    margin: 0 auto 24px auto;
}

.adv-svg {
    width: 100%;
    height: 100%;
}

.advantage-card h3 {
    font-size: 1.3rem;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.advantage-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* SVG 属性动画 */
.svg-rotate {
    transform-origin: center;
    animation: rotateSvg 20s linear infinite;
}

.svg-pulse {
    transform-origin: center;
    animation: pulseSvg 2s ease-in-out infinite;
}

.svg-dash {
    stroke-dasharray: 6 4;
    animation: dashSvg 1.5s linear infinite;
}

.svg-flow {
    stroke-dashoffset: 100;
    animation: flowSvg 4s linear infinite;
}

/* ==========================================================================
   8. 系统集成与多端对接 (Integration)
   ========================================================================== */
.integration-section {
    padding: 100px 0;
    background: #ffffff;
}

.integration-section .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.integration-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 32px;
}

.int-feat-item {
    font-size: 0.95rem;
    color: var(--text-muted);
}

.int-feat-item strong {
    color: var(--text-primary);
}

/* 多端旋转动画视觉 (亮色适配) */
.integration-visual {
    position: relative;
    width: 380px;
    height: 380px;
    margin: 0 auto;
}

.integration-center {
    position: absolute;
    top: 150px;
    left: 150px;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: #ffffff;
    z-index: 10;
    box-shadow: 0 0 30px rgba(0, 91, 255, 0.4);
}

.integration-node {
    position: absolute;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    text-align: center;
    color: var(--text-primary);
    padding: 4px;
    z-index: 5;
    left: 158px;
    top: 158px;
    transform: rotate(var(--angle)) translate(var(--dist)) rotate(calc(-1 * var(--angle)));
    box-shadow: 0 8px 24px rgba(0, 91, 255, 0.05);
    animation: rotateNodePulse 3s infinite alternate;
}

.integration-node::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 120px;
    height: 1px;
    background: linear-gradient(90deg, var(--zkj-blue), transparent);
    transform-origin: 0 0;
    transform: rotate(calc(180deg + var(--angle)));
    z-index: -1;
    opacity: 0.2;
}

.orbit-ring {
    position: absolute;
    top: 40px;
    left: 40px;
    width: 300px;
    height: 300px;
    border: 1px dashed rgba(0, 91, 255, 0.15);
    border-radius: 50%;
    animation: rotateOrbitRing 40s linear infinite;
    z-index: 1;
}

/* ==========================================================================
   9. 应用成果与标杆案例 (Success Cases PPT 演示仪 - 亮色重构)
   ========================================================================== */
.cases-section {
    background-color: var(--bg-darker) !important;
    padding: 100px 0;
}

.ppt-presenter {
    display: grid;
    grid-template-columns: 280px 1fr;
    min-height: 520px;
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.08);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 91, 255, 0.04);
}

.ppt-sidebar {
    background: #fafbfc;
    border-right: 1px solid rgba(0, 91, 255, 0.06);
    padding: 35px 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.ppt-sidebar h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--zkj-blue);
    margin-bottom: 24px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.ppt-nav-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1;
}

.ppt-nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: transparent;
    border: 1px solid transparent;
}

.ppt-nav-item:hover {
    background: rgba(0, 91, 255, 0.02);
    border-color: rgba(0, 91, 255, 0.1);
}

.ppt-nav-item.active {
    background: rgba(0, 91, 255, 0.06);
    border-color: rgba(0, 91, 255, 0.2);
}

.ppt-nav-index {
    font-size: 0.8rem;
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    color: var(--text-muted);
}

.ppt-nav-item.active .ppt-nav-index {
    color: var(--zkj-blue);
}

.ppt-nav-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
}

.ppt-nav-item.active .ppt-nav-name {
    color: var(--text-primary);
}

.ppt-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 30px;
    border-top: 1px solid rgba(0, 91, 255, 0.06);
    padding-top: 20px;
}

.ppt-ctrl-btn {
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.15);
    color: var(--zkj-blue);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.2s ease;
}

.ppt-ctrl-btn:hover {
    background: var(--zkj-blue);
    color: #ffffff;
    border-color: var(--zkj-blue);
    box-shadow: 0 4px 12px rgba(0, 91, 255, 0.2);
}

.ppt-page-indicator {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-muted);
}

/* PPT 右侧大屏幕 */
.ppt-screen {
    padding: 40px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    background: #ffffff;
}

.ppt-slide {
    display: flex;
    flex-direction: column;
    gap: 30px;
    animation: slideFadeIn 0.5s ease forwards;
}

.ppt-slide-header h3 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.ppt-slide-header p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.ppt-slide-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.ppt-bullets-col {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.ppt-bullet-group h5 {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.ppt-bullet-group.chall h5 { color: var(--pink); }
.ppt-bullet-group.solu h5 { color: var(--success); }

.ppt-bullet-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.ppt-bullet-list li {
    font-size: 0.82rem;
    color: var(--text-muted);
    position: relative;
    padding-left: 14px;
    line-height: 1.4;
}

.ppt-bullet-list li::before {
    content: '•';
    position: absolute;
    left: 0;
}

.ppt-bullet-group.chall .ppt-bullet-list li::before { color: var(--pink); }
.ppt-bullet-group.solu .ppt-bullet-list li::before { color: var(--success); }

/* 指标大卡 */
.ppt-metrics-col {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.ppt-metric-box {
    background: #fafbfc;
    border: 1px solid rgba(0, 91, 255, 0.06);
    border-radius: 8px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.3s ease;
}

.ppt-metric-box:hover {
    border-color: rgba(0, 91, 255, 0.15);
    background: #ffffff;
    box-shadow: 0 4px 15px rgba(0, 91, 255, 0.03);
}

.ppt-metric-info {
    display: flex;
    flex-direction: column;
}

.ppt-metric-lbl {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 2px;
}

.ppt-metric-desc {
    font-size: 0.7rem;
    color: var(--text-muted);
    opacity: 0.8;
}

.ppt-metric-val {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--zkj-blue);
    text-shadow: 0 0 10px rgba(0, 91, 255, 0.08);
}

.ppt-slide-footer {
    border-top: 1px solid rgba(0, 91, 255, 0.06);
    padding-top: 20px;
}

.ppt-slide-footer h5 {
    font-size: 0.85rem;
    color: var(--zkj-blue);
    margin-bottom: 6px;
}

.ppt-slide-footer p {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ==========================================================================
   10. 预约体验与咨询 (Appointment)
   ========================================================================== */
.appointment-section {
    padding: 100px 0;
    background: #ffffff;
}

.appointment-container {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(520px, 1.05fr);
    gap: clamp(40px, 5vw, 72px);
    align-items: center;
}

.appointment-info h2 {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.appointment-info p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 40px;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.contact-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: #f8fafc;
    border: 1px solid rgba(0, 91, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--zkj-blue);
}

/* 预约表单 */
.appointment-form-wrapper {
    width: 100%;
    min-width: 0;
    padding: clamp(30px, 3vw, 42px);
    position: relative;
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.08);
    border-radius: 22px;
    box-shadow: 0 10px 40px rgba(0, 91, 255, 0.04);
}

.appointment-form-wrapper h3 {
    font-size: 1.4rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.form-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 28px;
}

.booking-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.booking-form .form-group {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.booking-form label {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.booking-form input, .booking-form select, .booking-form textarea {
    display: block;
    width: 100%;
    min-width: 0;
    box-sizing: border-box;
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.12);
    border-radius: 10px;
    padding: 12px 14px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.booking-form input,
.booking-form select {
    min-height: 48px;
}

.booking-form textarea {
    min-height: 112px;
    line-height: 1.6;
    resize: vertical;
}

.booking-form > .btn {
    min-height: 50px;
    margin-top: 2px;
}

.booking-form input:focus, .booking-form select:focus, .booking-form textarea:focus {
    outline: none;
    border-color: var(--zkj-blue);
    box-shadow: 0 0 10px rgba(0, 91, 255, 0.15);
}

.required {
    color: var(--pink);
}

/* 提交成功遮罩 */
.form-success-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.98);
    border-radius: 16px;
    z-index: 20;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 30px;
    backdrop-filter: blur(10px);
    animation: fadeInSuccess 0.4s cubic-bezier(0.165, 0.84, 0.44, 1) forwards;
}

@keyframes fadeInSuccess {
    from {
        opacity: 0;
        backdrop-filter: blur(0px);
    }
    to {
        opacity: 1;
        backdrop-filter: blur(10px);
    }
}

.success-box {
    text-align: center;
    animation: scaleInSuccess 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes scaleInSuccess {
    from {
        transform: scale(0.85);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.success-icon {
    font-size: 3.5rem;
    display: block;
    margin-bottom: 16px;
    animation: bounceIcon 2s ease infinite;
}

@keyframes bounceIcon {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.success-box h4 {
    font-size: 1.4rem;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.success-box p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 24px;
}

/* 输入框校验错误样式与信息提示 */
.booking-form input.input-error, 
.booking-form select.input-error {
    border-color: var(--pink) !important;
    box-shadow: 0 0 10px rgba(244, 63, 94, 0.25) !important;
}

.validation-msg {
    display: block;
    font-size: 0.72rem;
    color: var(--pink);
    margin-top: 4px;
    margin-left: 2px;
    opacity: 0;
    transform: translateY(-5px);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    height: 0;
    overflow: hidden;
}

.validation-msg.active {
    opacity: 1;
    transform: translateY(0);
    height: auto;
    margin-bottom: -10px;
}

/* ==========================================================================
   11. 页脚 (Footer - 深色，保持 ZKJ.com 的厚重尾部)
   ========================================================================== */
.footer {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 80px 0 0 0;
    background: #0a1128; /* 海军蓝深色页脚 */
    color: #ffffff;
}

.footer-container {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-logo-text {
    font-weight: 800;
    font-size: 1.5rem;
    color: #ffffff;
}

.footer-brand p {
    font-size: 0.88rem;
    color: #94a3b8;
}

.links-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.links-group h5 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: #ffffff;
}

.links-group a {
    font-size: 0.88rem;
    color: #94a3b8;
}

.links-group a:hover {
    color: var(--cyan);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 24px 0;
    text-align: center;
    font-size: 0.8rem;
    color: #94a3b8;
}

/* ==========================================================================
   12. 关键帧动画定义
   ========================================================================== */
@keyframes corePulse {
    0% { transform: scale(1) rotate(0deg); opacity: 0.8; }
    100% { transform: scale(1.1) rotate(180deg); opacity: 1; }
}

@keyframes rotateOrbit1 {
    0% { transform: rotate3d(1, 1, 0, 0deg); }
    100% { transform: rotate3d(1, 1, 0, 360deg); }
}

@keyframes rotateOrbit2 {
    0% { transform: rotate3d(-1, 1, 1, 0deg); }
    100% { transform: rotate3d(-1, 1, 1, 360deg); }
}

@keyframes rotateOrbit3 {
    0% { transform: rotate3d(1, -1, 1, 360deg); }
    100% { transform: rotate3d(1, -1, 1, 0deg); }
}

@keyframes floatAnim {
    0% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0); }
}

@keyframes scalePulse {
    0% { transform: scale(0.85); opacity: 0.6; }
    100% { transform: scale(1.1); opacity: 1; }
}

@keyframes msgFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes traceStepIn {
    from { opacity: 0; transform: translateX(-10px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes metricFadeIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes floatArrow {
    0% { transform: translateY(-4px); }
    100% { transform: translateY(4px); }
}

@keyframes rotateSvg {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes pulseSvg {
    0% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.08); opacity: 1; }
    100% { transform: scale(1); opacity: 0.8; }
}

@keyframes dashSvg {
    from { stroke-dashoffset: 20; }
    to { stroke-dashoffset: 0; }
}

@keyframes flowSvg {
    from { stroke-dashoffset: 100; }
    to { stroke-dashoffset: 0; }
}

@keyframes rotateOrbitRing {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes rotateNodePulse {
    0% { box-shadow: 0 0 10px rgba(0, 91, 255, 0.1); }
    100% { box-shadow: 0 0 25px rgba(0, 91, 255, 0.4); }
}

@keyframes fadeInSuccess {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideFadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   13. 响应式布局媒体查询
   ========================================================================== */
@media (max-width: 1024px) {
    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: #ffffff;
        flex-direction: column;
        padding-top: 60px;
        gap: 40px;
        transition: all 0.3s ease;
        z-index: 99;
        box-shadow: 0 10px 30px rgba(0, 91, 255, 0.05);
    }

    .nav-menu.open {
        left: 0;
    }

    .nav-actions {
        display: none;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-badges {
        justify-content: center;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .integration-section .container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 60px;
    }
    
    .integration-features {
        align-items: center;
    }
    
    .appointment-container {
        grid-template-columns: 1fr;
        max-width: 820px;
        gap: 48px;
    }

    .appointment-info {
        max-width: 720px;
        margin: 0 auto;
        text-align: center;
    }

    .contact-methods {
        max-width: 620px;
        margin: 0 auto;
        text-align: left;
    }

    .appointment-form-wrapper {
        max-width: 760px;
        margin: 0 auto;
    }

    .analytics-demo-wrapper {
        grid-template-columns: 1fr;
        min-height: 0;
    }

    .analytics-dashboard {
        min-height: 420px;
    }

    .analytics-sidebar {
        min-height: 320px;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: #ffffff;
        flex-direction: column;
        padding-top: 60px;
        gap: 40px;
        transition: all 0.3s ease;
        z-index: 99;
        box-shadow: 0 10px 30px rgba(0, 91, 255, 0.05);
    }
    
    .nav-menu.open {
        left: 0;
    }
    
    .nav-actions {
        display: none;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    /* Demo 响应式折叠 */
    .demo-tabs {
        display: flex;
        overflow-x: auto;
        scroll-snap-type: x proximity;
        scrollbar-width: thin;
    }

    .tab-btn {
        flex: 0 0 auto;
        min-width: 220px;
        padding: 15px 18px;
        scroll-snap-align: start;
    }

    .demo-content {
        padding: 16px;
    }
    
    .chat-demo-wrapper {
        grid-template-columns: 1fr;
        height: auto;
    }
    
    .chat-window {
        height: 380px;
    }
    
    .trace-panel {
        height: 300px;
    }
    
    .workflow-demo-wrapper {
        grid-template-columns: 1fr;
        height: auto;
    }
    
    .workflow-nodes-sidebar {
        height: 200px;
    }
    
    .workflow-canvas-container {
        height: 350px;
    }
    
    .workflow-properties-panel {
        height: 250px;
    }
    
    .analytics-demo-wrapper {
        grid-template-columns: 1fr;
        height: auto;
    }
    
    .analytics-dashboard {
        height: auto;
        min-height: 0;
        padding: 16px;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
        flex: none;
    }

    .metric-card {
        min-height: 180px;
    }
    
    .analytics-sidebar {
        height: auto;
        min-height: 320px;
        padding: 16px;
    }

    .assistant-input-wrapper {
        grid-template-columns: 1fr;
    }

    .assistant-input-wrapper .btn {
        width: 100%;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }

    .appointment-form-wrapper {
        padding: 26px 20px;
        border-radius: 18px;
    }

    /* 移动端客户案例 ZKJ 胶囊样式 */
    .zkj-tabs-pill {
        flex-wrap: wrap;
        justify-content: center;
        border-radius: 16px;
        padding: 8px;
    }
    .zkj-tab-pill-btn {
        padding: 8px 16px;
        font-size: 0.8rem;
    }
    .case-detail-board {
        padding: 24px;
    }
    .case-detail-body {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .case-visual-wrapper {
        margin-top: 20px;
        justify-content: center;
    }
}

/* ==========================================================================
   15. 中关村科金风格：胶囊切换与案例详情中台样式
   ========================================================================== */
.cases-section {
    background-color: var(--bg-darker) !important;
    padding: 100px 0;
}

.zkj-tabs-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
}

.zkj-tabs-pill {
    display: flex;
    gap: 6px;
    background: #e2e8f0; /* 灰色圆角大药丸背景 */
    padding: 6px;
    border-radius: 30px;
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.05);
}

.zkj-tab-pill-btn {
    background: transparent;
    border: none;
    border-radius: 24px;
    padding: 10px 24px;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.zkj-tab-pill-btn:hover {
    color: var(--zkj-blue);
}

.zkj-tab-pill-btn.active {
    background: #ffffff; /* 激活时为白色小药丸 */
    color: var(--zkj-blue);
    box-shadow: 0 4px 15px rgba(0, 91, 255, 0.1);
}

/* 案例大中台主板 */
.case-detail-board {
    display: block;
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.08);
    border-radius: 16px;
    padding: 50px;
    box-shadow: 0 20px 50px rgba(0, 91, 255, 0.04);
}

.case-slide {
    animation: slideFadeIn 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.case-slide-header h3 {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-primary-dark);
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.case-slide-header p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 24px;
}

.case-detail-body {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 50px;
    align-items: start;
}

/* 警告痛点背景提示行 (黄底粉/红字) */
.case-alert {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px 20px;
    background: #fffbeb; /* 黄色底 */
    border: 1px solid rgba(245, 158, 11, 0.15);
    border-radius: 8px;
    color: #b45309; /* 深黄红字 */
    font-size: 0.85rem;
    font-weight: 700;
    line-height: 1.5;
    margin-bottom: 30px;
}

.case-alert-icon {
    font-size: 1.1rem;
    flex-shrink: 0;
    line-height: 1;
}

/* 左侧方案内容 */
.case-bullets-col {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.case-bullet-group h5 {
    font-size: 0.95rem;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--text-primary-dark);
    letter-spacing: 0.5px;
    border-left: 3px solid var(--zkj-blue);
    padding-left: 10px;
}

.case-bullet-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.case-bullet-list li {
    font-size: 0.85rem;
    color: var(--text-muted-dark);
    position: relative;
    padding-left: 18px;
    line-height: 1.5;
}

.case-bullet-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--zkj-blue);
    font-weight: 900;
    font-size: 1.2rem;
    line-height: 0.9;
}

/* 打勾交付指标列表 */
.case-metrics-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.case-metrics-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: #f8fafc;
    border: 1px solid rgba(0, 91, 255, 0.05);
    border-radius: 8px;
}

.case-metric-check {
    color: var(--success);
    font-weight: 900;
    font-size: 1rem;
}

.case-metric-text {
    flex: 1;
    font-size: 0.85rem;
    color: var(--text-primary-dark);
    font-weight: 700;
}

.case-metric-desc {
    font-size: 0.75rem;
    color: var(--text-muted-dark);
}

/* 右侧品牌Logo与3D视觉 */
.case-visual-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: #f8fafc;
    border: 1px solid rgba(0, 91, 255, 0.05);
    border-radius: 12px;
    padding: 40px 30px;
    position: relative;
    overflow: hidden;
}

.case-logo-container {
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 30px;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.02));
    width: 100%;
}

.case-logo-img {
    height: 100%;
    max-width: 180px;
    object-fit: contain;
}

/* SVG 3D 浮动卡片预览 */
.case-preview-card {
    width: 100%;
    max-width: 280px;
    height: 180px;
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.08);
    border-radius: 12px;
    box-shadow: 0 15px 35px rgba(0, 91, 255, 0.05);
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 16px;
    transform: perspective(600px) rotateY(-5deg) rotateX(5deg);
    transition: transform 0.5s ease;
}

.case-preview-card:hover {
    transform: perspective(600px) rotateY(0deg) rotateX(0deg) translateY(-5px);
}

.preview-card-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--zkj-blue);
}

.preview-card-body {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.preview-card-line {
    height: 6px;
    background: #e2e8f0;
    border-radius: 3px;
    width: var(--w);
}

.preview-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #f1f5f9;
    padding-top: 10px;
    font-size: 0.7rem;
    color: var(--text-muted-dark);
}

.preview-card-value {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--zkj-blue);
}

/* 价值大框 */
.case-slide-footer {
    margin-top: 35px;
    padding-top: 24px;
    border-top: 1px solid rgba(0, 91, 255, 0.06);
}

.case-slide-footer h5 {
    font-size: 0.85rem;
    color: var(--zkj-blue);
    font-weight: 800;
    margin-bottom: 6px;
    letter-spacing: 0.5px;
}

.case-slide-footer p {
    font-size: 0.85rem;
    color: var(--text-muted-dark);
    line-height: 1.6;
}

/* ==========================================================================
   16. 二级客户小胶囊 Tab 样式
   ========================================================================== */
.zkj-sub-tabs-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    transition: all 0.3s ease;
}

.zkj-sub-tabs-wrapper.hidden {
    display: none !important;
}

.zkj-sub-tabs-pill {
    display: flex;
    gap: 4px;
    background: #f1f5f9; /* 更浅的底色 */
    padding: 4px;
    border-radius: 20px;
    border: 1px solid rgba(0, 91, 255, 0.05);
}

.zkj-sub-pill-btn {
    background: transparent;
    border: none;
    border-radius: 16px;
    padding: 6px 16px;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s ease;
}

.zkj-sub-pill-btn:hover {
    color: var(--zkj-blue);
}

.zkj-sub-pill-btn.active {
    background: #ffffff;
    color: var(--zkj-blue);
    box-shadow: 0 2px 10px rgba(0, 91, 255, 0.08);
}

/* ==========================================================================
   17. Mega Menu (巨型下拉导航)
   ========================================================================== */
.dropdown-wrapper {
    position: relative;
    display: inline-block;
}

.mega-dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(15px);
    width: 680px;
    padding: 24px;
    background: rgba(10, 18, 36, 0.92);
    border: 1px solid rgba(0, 102, 255, 0.2);
    border-radius: 12px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
    backdrop-filter: blur(16px);
}

/* 亮色模式适配 */
.light-theme .mega-dropdown {
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(0, 91, 255, 0.15);
    box-shadow: 0 20px 50px rgba(0, 91, 255, 0.1);
}

.dropdown-wrapper:hover .mega-dropdown,
.mega-dropdown.active {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(5px);
}

.mega-dropdown-inner {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.mega-col {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mega-col h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: #38BDF8;
    margin-bottom: 6px;
    border-bottom: 1px solid rgba(56, 189, 248, 0.15);
    padding-bottom: 6px;
}

.light-theme .mega-col h4 {
    color: var(--zkj-blue);
    border-bottom-color: rgba(0, 91, 255, 0.1);
}

.mega-col a {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 8px;
    border-radius: 6px;
    text-decoration: none;
    transition: background 0.2s ease;
}

.mega-col a:hover {
    background: rgba(0, 102, 255, 0.1);
}

.light-theme .mega-col a:hover {
    background: rgba(0, 91, 255, 0.05);
}

.mega-col a strong {
    font-size: 0.8rem;
    font-weight: 700;
    color: #F8FAFC;
    transition: color 0.2s ease;
}

.light-theme .mega-col a strong {
    color: var(--text-primary);
}

.mega-col a:hover strong {
    color: #38BDF8;
}

.light-theme .mega-col a:hover strong {
    color: var(--zkj-blue);
}

.mega-col a span {
    font-size: 0.7rem;
    color: #94A3B8;
}

.light-theme .mega-col a span {
    color: var(--text-muted);
}

/* ==========================================================================
   18. 核心量化指标卡网格
   ========================================================================== */
.metrics-section {
    padding: 80px 0;
    position: relative;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.metric-card-visual {
    padding: 32px 24px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid rgba(0, 102, 255, 0.1);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.metric-card-visual:hover {
    transform: translateY(-5px);
    border-color: rgba(56, 189, 248, 0.4);
    box-shadow: 0 15px 30px rgba(0, 102, 255, 0.15);
}

.metric-num {
    font-size: 2.8rem;
    font-weight: 800;
    font-family: 'Outfit', sans-serif;
    background: linear-gradient(135deg, #38BDF8 0%, #0066FF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 12px;
    position: relative;
    display: inline-block;
}

.metric-num .plus {
    font-size: 1.8rem;
    vertical-align: super;
}

.metric-card-visual h3 {
    font-size: 0.95rem;
    font-weight: 700;
    color: #F8FAFC;
    margin-bottom: 10px;
}

.light-theme .metric-card-visual h3 {
    color: var(--text-primary);
}

.metric-card-visual p {
    font-size: 0.75rem;
    color: #94A3B8;
    line-height: 1.6;
}

.light-theme .metric-card-visual p {
    color: var(--text-muted);
}

/* ==========================================================================
   19. 资源中心（白皮书下载）
   ========================================================================== */
/* ==========================================================================
   19. 落地保障体系板块 (#delivery-framework)
   ========================================================================== */
.delivery-section {
    padding: 100px 0;
    background-color: var(--bg-dark);
    border-top: 1px solid var(--border-glass);
}

.delivery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 50px;
}

.delivery-card {
    padding: 40px 32px;
    border-radius: 16px;
    border: 1px solid rgba(0, 91, 255, 0.1);
    background: #ffffff;
    box-shadow: var(--shadow-card);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.delivery-card:hover {
    border-color: rgba(0, 91, 255, 0.3);
    box-shadow: var(--shadow-hover);
    transform: translateY(-5px);
}

.del-icon-wrapper {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    font-size: 1.8rem;
}

.del-icon-wrapper.purple {
    background: rgba(124, 58, 237, 0.08);
    color: #7C3AED;
    border: 1px solid rgba(124, 58, 237, 0.2);
}

.del-icon-wrapper.cyan {
    background: rgba(6, 182, 212, 0.08);
    color: #0891B2;
    border: 1px solid rgba(6, 182, 212, 0.2);
}

.del-icon-wrapper.blue {
    background: rgba(0, 91, 255, 0.08);
    color: var(--zkj-blue);
    border: 1px solid rgba(0, 91, 255, 0.2);
}

.delivery-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}

.delivery-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.6;
}

@media (max-width: 992px) {
    .delivery-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

/* ==========================================================================
   21. 三栏式开发者文档中心
   ========================================================================== */
#developer-docs-page {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: #090d16;
    color: #f8fafc;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.light-theme #developer-docs-page {
    background: #f8fafc;
    color: #1e293b;
}

#developer-docs-page.hidden {
    display: none !important;
}

.docs-header {
    height: 60px;
    background: rgba(13, 20, 36, 0.95);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
    flex-shrink: 0;
}

.light-theme .docs-header {
    background: #ffffff;
    border-bottom-color: #e2e8f0;
}

.docs-logo .logo-text {
    font-size: 1.1rem;
    font-weight: 700;
    font-family: 'Outfit', sans-serif;
}

.docs-container {
    flex: 1;
    display: grid;
    grid-template-columns: 260px 1fr 340px;
    overflow: hidden;
}

/* 开发者文档左边栏 */
.docs-sidebar {
    background: rgba(13, 20, 36, 0.98);
    border-right: 1px solid rgba(255, 255, 255, 0.05);
    padding: 24px 16px;
    overflow-y: auto;
}

.light-theme .docs-sidebar {
    background: #ffffff;
    border-right-color: #e2e8f0;
}

.docs-menu-tree {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.docs-menu-tree .menu-item {
    font-size: 0.8rem;
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    color: #94a3b8;
    transition: all 0.2s ease;
}

.light-theme .docs-menu-tree .menu-item {
    color: #475569;
}

.docs-menu-tree .menu-item:hover {
    background: rgba(0, 102, 255, 0.08);
    color: #38BDF8;
}

.light-theme .docs-menu-tree .menu-item:hover {
    color: var(--zkj-blue);
    background: rgba(0, 91, 255, 0.03);
}

.docs-menu-tree .menu-item.active {
    background: rgba(0, 102, 255, 0.15);
    color: #38BDF8;
    font-weight: 700;
}

.light-theme .docs-menu-tree .menu-item.active {
    background: rgba(0, 91, 255, 0.06);
    color: var(--zkj-blue);
}

.docs-menu-tree .menu-item-group {
    font-size: 0.75rem;
    font-weight: 700;
    color: #475569;
    padding: 12px 12px 4px 12px;
    list-style: none;
}

.docs-menu-tree .menu-item-group ul {
    list-style: none;
    padding-left: 0;
    margin-top: 4px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

/* 开发者文档中间正文 */
.docs-body {
    padding: 40px;
    overflow-y: auto;
    background: #090d16;
}

.light-theme .docs-body {
    background: #ffffff;
}

.markdown-body {
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.7;
    font-size: 0.9rem;
}

.markdown-body h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: #ffffff;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 8px;
}

.light-theme .markdown-body h1 {
    color: var(--text-primary);
    border-bottom-color: #e2e8f0;
}

.markdown-body h2 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-top: 32px;
    margin-bottom: 12px;
    color: #e2e8f0;
}

.light-theme .markdown-body h2 {
    color: #334155;
}

.markdown-body p {
    margin-bottom: 16px;
    color: #94a3b8;
}

.light-theme .markdown-body p {
    color: #475569;
}

.markdown-body ul {
    margin-bottom: 16px;
    padding-left: 20px;
    color: #94a3b8;
}

.light-theme .markdown-body ul {
    color: #475569;
}

.markdown-body code {
    background: rgba(255, 255, 255, 0.05);
    color: #38BDF8;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: Consolas, monospace;
    font-size: 0.85rem;
}

.light-theme .markdown-body code {
    background: #f1f5f9;
    color: #0f172a;
}

.markdown-body pre {
    background: rgba(13, 20, 36, 0.95);
    padding: 16px;
    border-radius: 8px;
    overflow-x: auto;
    border: 1px solid rgba(255, 255, 255, 0.05);
    margin-bottom: 24px;
}

.light-theme .markdown-body pre {
    background: #f8fafc;
    border-color: #e2e8f0;
}

.markdown-body pre code {
    background: transparent;
    color: #f8fafc;
    padding: 0;
    font-size: 0.8rem;
}

.light-theme .markdown-body pre code {
    color: #0f172a;
}

.api-method-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    color: #ffffff;
    margin-right: 8px;
}

.api-method-badge.post {
    background: var(--zkj-blue);
}

.api-url-text {
    font-family: Consolas, monospace;
    font-size: 0.85rem;
    color: #f8fafc;
}

.light-theme .api-url-text {
    color: #0f172a;
}

.btn-try-api {
    background: #0066FF;
    color: #ffffff;
    border: none;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.75rem;
    cursor: pointer;
    font-weight: 700;
    margin-left: 12px;
    transition: background 0.2s ease;
}

.btn-try-api:hover {
    background: #0052cc;
}

/* 开发者文档右边栏 (调试沙箱终端) */
.docs-console-panel {
    background: rgba(13, 20, 36, 0.98);
    border-left: 1px solid rgba(255, 255, 255, 0.05);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    overflow-y: auto;
}

.light-theme .docs-console-panel {
    background: #f1f5f9;
    border-left-color: #e2e8f0;
}

.console-box {
    display: flex;
    flex-direction: column;
    height: 320px;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.light-theme .console-box {
    border-color: #cbd5e1;
}

.console-header {
    background: rgba(9, 13, 22, 0.9);
    padding: 8px 12px;
    font-size: 0.75rem;
    font-weight: 700;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: #94a3b8;
}

.light-theme .console-header {
    background: #e2e8f0;
    color: #475569;
}

.console-terminal {
    flex: 1;
    background: #020617;
    padding: 12px;
    overflow: auto;
}

.console-terminal pre {
    margin: 0;
    font-family: Consolas, monospace;
    font-size: 0.75rem;
    color: #38BDF8;
    white-space: pre-wrap;
    line-height: 1.5;
}

.docs-toc h4 {
    font-size: 0.8rem;
    font-weight: 700;
    color: #475569;
    margin-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 6px;
}

.docs-toc ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.docs-toc ul li {
    font-size: 0.75rem;
    color: #94a3b8;
    cursor: pointer;
}

.docs-toc ul li:hover {
    color: #38BDF8;
}

.light-theme .docs-toc ul li {
    color: #475569;
}

.light-theme .docs-toc ul li:hover {
    color: var(--zkj-blue);
}

/* ==========================================================================
   22. 51ima 风格大模型业务落地平台版图 (#product-matrix)
   ========================================================================== */
.matrix-section {
    padding: 100px 0;
    background-color: var(--bg-darker);
    border-top: 1px solid var(--border-glass);
    border-bottom: 1px solid var(--border-glass);
    position: relative;
    z-index: 10;
}

.matrix-tabs-container {
    display: flex;
    justify-content: center;
    margin-top: 40px;
    margin-bottom: 30px;
}

.matrix-top-tabs {
    background: #f1f5f9;
    border: 1px solid rgba(0, 91, 255, 0.12);
    padding: 6px;
    border-radius: 40px;
    display: flex;
    gap: 8px;
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.05);
}

.matrix-pill {
    padding: 12px 30px;
    border-radius: 30px;
    border: none;
    background: transparent;
    color: #475569;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.matrix-pill:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.03);
}

.matrix-pill.active {
    background: var(--zkj-blue);
    color: #ffffff;
    box-shadow: 0 8px 20px rgba(0, 91, 255, 0.2);
}

/* 主面板双栏布局 */
.matrix-main-panel {
    display: grid;
    grid-template-columns: 240px 1fr;
    border-radius: 20px;
    overflow: hidden;
    min-height: 520px;
    background: #ffffff;
    border: 1px solid rgba(0, 91, 255, 0.1);
    box-shadow: var(--shadow-card);
}

/* 左侧二级菜单 */
.matrix-side-menu {
    background: #f8fafc;
    border-right: 1px solid rgba(0, 91, 255, 0.08);
    padding: 30px 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.matrix-side-item {
    text-align: left;
    padding: 16px 20px;
    border-radius: 12px;
    border: 1px solid transparent;
    background: transparent;
    color: #475569;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
    position: relative;
    overflow: hidden;
}

.matrix-side-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 15%;
    width: 3px;
    height: 70%;
    background: var(--zkj-blue);
    border-radius: 2px;
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.matrix-side-item:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.01);
}

.matrix-side-item.active {
    background: rgba(0, 91, 255, 0.04);
    color: var(--zkj-blue);
    font-weight: 700;
    border-color: rgba(0, 91, 255, 0.12);
}

.matrix-side-item.active::before {
    transform: scaleX(1);
}

/* 右侧详情主区 */
.matrix-detail-content {
    padding: 50px;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items: center;
    background: #ffffff;
    transition: opacity 0.3s ease;
}

.matrix-text-area {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.matrix-text-area h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.5px;
}

.matrix-check-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.matrix-check-list li {
    font-size: 0.9rem;
    color: #334155;
    line-height: 1.6;
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.check-icon {
    color: #059669;
    font-weight: bold;
    flex-shrink: 0;
}

.matrix-metrics-row {
    display: flex;
    gap: 30px;
    margin-top: 10px;
}

.matrix-metric-box {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.matrix-metric-box .metric-val {
    font-family: 'Outfit', sans-serif;
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--zkj-blue);
    line-height: 1;
}

.matrix-metric-box .metric-trend {
    font-size: 1.2rem;
    vertical-align: super;
    margin-left: 4px;
}

.matrix-metric-box .metric-label {
    font-size: 0.75rem;
    color: #64748B;
    font-weight: 600;
}

.matrix-actions {
    display: flex;
    gap: 16px;
    margin-top: 15px;
}

/* 拟 3D 浮动卡片设计 */
.matrix-visual-area {
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1000px;
}

.matrix-visual-wrapper-card {
    position: relative;
    width: 100%;
    max-width: 380px;
    transform: rotateX(8deg) rotateY(-16deg) rotateZ(2deg);
    transform-style: preserve-3d;
}

.mock-window-card {
    width: 100%;
    border-radius: 16px;
    border: 1px solid rgba(0, 91, 255, 0.15);
    overflow: hidden;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    box-shadow: 0 20px 50px rgba(0, 91, 255, 0.08);
    transition: all 0.3s ease;
}

.mock-window-header {
    background: rgba(0, 0, 0, 0.03);
    padding: 12px 16px;
    border-bottom: 1px solid rgba(0, 91, 255, 0.06);
    display: flex;
    align-items: center;
    gap: 6px;
}

.mock-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.mock-dot.red { background: #EF4444; }
.mock-dot.yellow { background: #F59E0B; }
.mock-dot.green { background: #10B981; }

.mock-window-title {
    font-size: 0.7rem;
    color: #64748B;
    margin-left: 10px;
    font-weight: 600;
}

.mock-window-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-height: 200px;
}

.mock-bubble {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.mock-bubble.robot {
    flex-direction: row;
}

.mock-bubble.user {
    flex-direction: row-reverse;
}

.mock-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--zkj-blue);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: bold;
    flex-shrink: 0;
}

.mock-avatar.bg-purple {
    background: var(--purple);
}

.mock-msg-box {
    padding: 10px 14px;
    border-radius: 12px;
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
    max-width: 75%;
}

.mock-bubble.robot .mock-msg-box {
    border-top-left-radius: 2px;
}

.mock-bubble.user .mock-msg-box {
    border-top-right-radius: 2px;
    border-color: rgba(0, 91, 255, 0.12);
}

.mock-msg-box p {
    font-size: 0.75rem;
    color: #1e293b;
    line-height: 1.4;
}

.mock-translation {
    font-size: 0.65rem;
    color: #64748B;
    display: block;
    margin-top: 4px;
}

/* 浮动意图Agent小卡片 */
.float-agent-card {
    position: absolute;
    width: 180px;
    padding: 14px;
    border-radius: 12px;
    border: 1px solid rgba(0, 91, 255, 0.15);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 15px 30px rgba(0, 91, 255, 0.05);
    top: 50px;
    right: -40px;
    transform: translateZ(40px);
    display: flex;
    gap: 10px;
    align-items: center;
    backdrop-filter: blur(10px);
    animation: hoverFloat 4s ease-in-out infinite;
}

.float-agent-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: rgba(0, 91, 255, 0.08);
    color: var(--zkj-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.float-agent-text h4 {
    font-size: 0.75rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 2px;
}

.float-agent-text p {
    font-size: 0.65rem;
    color: #64748B;
}

.float-agent-text p span {
    color: #059669;
    font-weight: bold;
}

/* 漂浮动画 */
@keyframes hoverFloat {
    0% {
        transform: translateZ(40px) translateY(0);
    }
    50% {
        transform: translateZ(40px) translateY(-10px);
    }
    100% {
        transform: translateZ(40px) translateY(0);
    }
}

@media (max-width: 992px) {
    .matrix-main-panel {
        grid-template-columns: 1fr;
    }
    .matrix-side-menu {
        border-right: none;
        border-bottom: 1px solid rgba(0, 91, 255, 0.08);
        flex-direction: row;
        overflow-x: auto;
        padding: 16px;
    }
    .matrix-side-item {
        flex-shrink: 0;
        padding: 10px 16px;
    }
    .matrix-side-item::before {
        display: none;
    }
    .matrix-detail-content {
        grid-template-columns: 1fr;
        padding: 30px 24px;
        gap: 30px;
    }
    .matrix-visual-area {
        order: -1;
    }
    .matrix-visual-wrapper-card {
        max-width: 320px;
        margin: 0 auto;
    }
}

/* 放大镜按钮样式 */
.float-magnify-btn {
    position: absolute;
    bottom: 12px;
    right: 12px;
    background: rgba(0, 91, 255, 0.85);
    color: #ffffff;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    cursor: pointer;
    backdrop-filter: blur(4px);
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 91, 255, 0.2);
    z-index: 100;
}

.float-magnify-btn:hover {
    background: var(--zkj-blue);
    transform: scale(1.05);
}

/* ==========================================================================
   23. 平台后台真实系统实景展厅 (#system-showroom)
   ========================================================================== */
.showroom-section {
    padding: 100px 0;
    background-color: var(--bg-dark);
    position: relative;
    z-index: 10;
}

.showroom-nav-wrapper {
    display: flex;
    justify-content: center;
    margin-top: 40px;
    margin-bottom: 40px;
    width: 100%;
}

.showroom-steps {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 8px;
    background: #f1f5f9;
    border-radius: 40px;
    border: 1px solid rgba(0, 91, 255, 0.1);
    max-width: 100%;
    scrollbar-width: none; /* Firefox */
}

.showroom-steps::-webkit-scrollbar {
    display: none; /* Chrome/Safari */
}

.showroom-step-btn {
    padding: 12px 20px;
    border-radius: 30px;
    border: none;
    background: transparent;
    color: #475569;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.showroom-step-btn:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.02);
}

.showroom-step-btn.active {
    background: var(--zkj-blue);
    color: #ffffff;
    box-shadow: 0 6px 15px rgba(0, 91, 255, 0.2);
}

/* 展厅大视窗 */
.showroom-viewer {
    border-radius: 20px;
    border: 1px solid rgba(0, 91, 255, 0.1);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    background: #ffffff;
}

.showroom-detail-card {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 40px;
    padding: 50px;
    align-items: center;
    transition: opacity 0.3s ease;
}

.showroom-info-col {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.showroom-step-num {
    font-family: 'Outfit', sans-serif;
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--zkj-blue);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.showroom-info-col h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
}

.showroom-tag-row {
    display: flex;
    gap: 8px;
}

.showroom-tag {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--zkj-blue);
    background: rgba(0, 91, 255, 0.06);
    padding: 4px 10px;
    border-radius: 12px;
}

.showroom-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.showroom-value-box {
    background: #f8fafc;
    border: 1px solid rgba(0, 91, 255, 0.05);
    padding: 20px;
    border-radius: 12px;
}

.showroom-value-box h5 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.showroom-bullet-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.showroom-bullet-list li {
    font-size: 0.8rem;
    color: #475569;
    line-height: 1.5;
    position: relative;
    padding-left: 16px;
}

.showroom-bullet-list li::before {
    content: '•';
    color: var(--zkj-blue);
    font-weight: bold;
    position: absolute;
    left: 0;
    top: 0;
}

.showroom-actions {
    display: flex;
    gap: 12px;
    margin-top: 10px;
}

.showroom-actions .btn {
    padding: 10px 20px;
    font-size: 0.8rem;
}

/* 展厅右侧截图框 */
.showroom-visual-col {
    display: flex;
    justify-content: center;
    perspective: 1000px;
}

.showroom-screenshot-frame {
    width: 100%;
    border-radius: 16px;
    border: 1px solid rgba(0, 91, 255, 0.15);
    overflow: hidden;
    background: #ffffff;
    box-shadow: 0 20px 45px rgba(0, 91, 255, 0.06);
    transform: rotateX(4deg) rotateY(-8deg) rotateZ(1deg);
    transition: all 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.showroom-screenshot-frame:hover {
    transform: rotateX(0deg) rotateY(0deg) rotateZ(0deg);
    box-shadow: 0 25px 60px rgba(0, 91, 255, 0.12);
}

.showroom-image-box {
    position: relative;
    width: 100%;
    height: 280px;
    overflow: hidden;
    cursor: pointer;
}

.showroom-image-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
    transition: transform 0.5s ease;
}

.showroom-image-box:hover img {
    transform: scale(1.03);
}

.showroom-zoom-trigger {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 91, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 0.9rem;
    font-weight: 700;
    opacity: 0;
    transition: all 0.3s ease;
    backdrop-filter: blur(2px);
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.showroom-image-box:hover .showroom-zoom-trigger {
    opacity: 1;
    background: rgba(0, 91, 255, 0.4);
}

/* ==========================================================================
   24. 全局大图放大 Modal 遮罩层 (.img-modal-overlay)
   ========================================================================== */
.img-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(10, 17, 40, 0.85);
    backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 5000;
    opacity: 1;
    transition: all 0.3s ease;
}

.img-modal-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.img-modal-wrapper {
    position: relative;
    width: 90%;
    max-width: 1100px;
    background: #ffffff;
    border-radius: 16px;
    border: 1px solid rgba(0, 91, 255, 0.15);
    overflow: hidden;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
    animation: zoomModalIn 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.img-modal-close {
    position: absolute;
    top: 16px;
    right: 20px;
    background: rgba(0, 0, 0, 0.5);
    border: none;
    color: #ffffff;
    font-size: 2.2rem;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    transition: all 0.3s ease;
}

.img-modal-close:hover {
    background: #EF4444;
    transform: rotate(90deg);
}

.img-modal-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px;
}

.img-modal-content img {
    max-width: 100%;
    max-height: 75vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.img-modal-caption {
    margin-top: 12px;
    color: var(--text-primary);
    font-size: 0.85rem;
    font-weight: 700;
}

@keyframes zoomModalIn {
    from {
        transform: scale(0.95);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

@media (max-width: 992px) {
    .showroom-detail-card {
        grid-template-columns: 1fr;
        padding: 30px 24px;
    }
    .showroom-visual-col {
        order: -1;
    }
    .showroom-screenshot-frame {
        transform: none;
    }
}

/* ==========================================================================
   实时语音对话引擎 (Voice Section) 样式
   ========================================================================== */
.voice-section {
    padding: 100px 0;
    background-color: var(--bg-darker);
    position: relative;
    overflow: hidden;
}

/* 双核卡片网格 */
.voice-dual-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

.voice-core-card {
    padding: 40px;
    position: relative;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.voice-core-card:hover {
    transform: translateY(-5px);
}

.voice-core-card .card-icon-wrap {
    width: 60px;
    height: 60px;
    border-radius: 14px;
    background: rgba(0, 91, 255, 0.06);
    color: var(--zkj-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    border: 1px solid rgba(0, 91, 255, 0.1);
}

.voice-core-card .voice-svg-icon {
    width: 28px;
    height: 28px;
}

.voice-core-card h3 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.voice-core-card .subtitle {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--zkj-blue);
    background: rgba(0, 91, 255, 0.05);
    padding: 4px 12px;
    border-radius: 30px;
    margin-bottom: 16px;
    display: inline-block;
}

.voice-core-card .desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* 语音管道链路 */
.voice-pipeline-box {
    padding: 50px 30px;
    background: var(--bg-card);
    margin-bottom: 50px;
    position: relative;
    border-radius: 20px;
}

.pipeline-title {
    text-align: center;
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 40px;
    color: var(--text-primary);
}

.voice-pipeline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 15px 10px;
}

.pipeline-node {
    position: relative;
    padding: 12px 24px;
    background: var(--bg-card-inner);
    border: 1px solid var(--border-light);
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
    transition: all 0.3s ease;
    z-index: 2;
    box-shadow: 0 4px 10px rgba(0, 91, 255, 0.02);
}

/* 回合判定 - 高亮核心节点 */
.pipeline-node.core-node {
    background: var(--zkj-blue);
    color: #ffffff;
    border-color: var(--zkj-blue);
    font-weight: 800;
    box-shadow: 0 8px 25px rgba(0, 91, 255, 0.3);
    transform: scale(1.05);
}

.pipeline-node.core-node .node-glow {
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border-radius: 35px;
    background: rgba(0, 91, 255, 0.4);
    z-index: -1;
    animation: coreGlow 2s infinite alternate;
}

/* 首尾节点声波呼吸效果 */
.pipeline-node.start-node,
.pipeline-node.end-node {
    border-color: rgba(0, 91, 255, 0.2);
}

.pipeline-node .node-pulse {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 30px;
    border: 2px solid var(--zkj-blue);
    opacity: 0;
    z-index: -1;
}

.pipeline-node.start-node .node-pulse {
    animation: voicePulse 2.4s infinite;
}

.pipeline-node.end-node .node-pulse {
    animation: voicePulse 2.4s infinite 1.2s;
}

/* 流向箭头 */
.pipeline-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(0, 91, 255, 0.35);
    flex-grow: 1;
    max-width: 40px;
}

.pipeline-arrow .arrow-svg {
    width: 20px;
    height: 20px;
    animation: arrowFlow 1.5s infinite linear;
}

/* 语音工程能力网格 */
.voice-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 50px;
}

.voice-feature-item {
    padding: 24px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: all 0.3s ease;
}

.voice-feature-item:hover {
    transform: translateY(-2px);
    border-color: rgba(0, 91, 255, 0.15);
    box-shadow: 0 8px 30px rgba(0, 91, 255, 0.04);
}

.voice-feature-item .feature-icon-wrap {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: rgba(0, 91, 255, 0.04);
    color: var(--zkj-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 1px solid rgba(0, 91, 255, 0.06);
}

.voice-feature-item .feature-svg-icon {
    width: 20px;
    height: 20px;
}

.voice-feature-item h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.voice-feature-item p {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* 性能硬核指标 */
.voice-metrics-box {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.voice-metric-card {
    padding: 30px 24px;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: all 0.3s ease;
}

.voice-metric-card:hover {
    border-color: rgba(0, 91, 255, 0.12);
}

.voice-metric-card .metric-num-wrap {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin-bottom: 8px;
    color: var(--zkj-blue);
}

.voice-metric-card .metric-num {
    font-family: 'Outfit', sans-serif;
    font-size: 2.4rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.voice-metric-card .metric-unit {
    font-size: 1.1rem;
    font-weight: 700;
    margin-left: 2px;
}

.voice-metric-card .metric-text-val {
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.voice-metric-card h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.voice-metric-card .metric-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* 动画关键帧定义 */
@keyframes voicePulse {
    0% {
        transform: scale(1);
        opacity: 0.5;
    }
    100% {
        transform: scale(1.25);
        opacity: 0;
    }
}

@keyframes coreGlow {
    0% {
        box-shadow: 0 0 10px rgba(0, 91, 255, 0.2);
        opacity: 0.6;
    }
    100% {
        box-shadow: 0 0 25px rgba(0, 91, 255, 0.6);
        opacity: 1;
    }
}

@keyframes arrowFlow {
    0% {
        transform: translateX(-4px);
        opacity: 0.5;
    }
    50% {
        transform: translateX(4px);
        opacity: 1;
    }
    100% {
        transform: translateX(-4px);
        opacity: 0.5;
    }
}

/* 响应式适配 */
@media (max-width: 992px) {
    .voice-dual-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .voice-features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .voice-metrics-box {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .voice-section {
        padding: 60px 0;
    }
    
    .voice-core-card {
        padding: 30px;
    }
    
    .voice-pipeline {
        justify-content: center;
        flex-direction: column;
        align-items: center;
        gap: 8px;
    }
    
    .pipeline-arrow {
        transform: rotate(90deg);
        margin: 5px 0;
    }
    
    @keyframes arrowFlow {
        0% {
            transform: rotate(90deg) translateX(-4px);
            opacity: 0.5;
        }
        50% {
            transform: rotate(90deg) translateX(4px);
            opacity: 1;
        }
        100% {
            transform: rotate(90deg) translateX(-4px);
            opacity: 0.5;
        }
    }
    
    .voice-features-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .voice-metrics-box {
        grid-template-columns: 1fr;
    }
}

/* 全局隐藏工具类，修复官网表单遮罩默认显示 Bug */
.hidden {
    display: none !important;
}

/* ==========================================================================
   28. 移动端最终覆盖：放在所有功能模块之后，避免后声明的桌面样式反向覆盖
   ========================================================================== */
@media (max-width: 1024px) {
    html {
        overflow-x: clip;
    }

    body.nav-open {
        overflow: hidden;
    }

    .navbar {
        right: 0;
        width: auto;
        max-width: 100vw;
    }

    .nav-container {
        width: 100%;
        min-width: 0;
    }

    .logo {
        min-height: 44px;
    }

    .menu-toggle {
        min-width: 44px;
        min-height: 44px;
        padding: 10px;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
    }

    .nav-menu {
        left: 0;
        right: 0;
        width: auto;
        max-width: 100vw;
        height: calc(100dvh - 80px);
        padding: 32px 20px 48px;
        gap: 16px;
        align-items: stretch;
        overflow-x: hidden;
        overflow-y: auto;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }

    .nav-menu.open {
        left: 0;
        transform: translateX(0);
    }

    .nav-menu .nav-link {
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .dropdown-wrapper {
        width: 100%;
        display: block;
    }

    .dropdown-wrapper > .nav-link {
        width: 100%;
    }

    /* 移动端直接使用一级入口，避免桌面悬浮式巨型菜单撑宽页面。 */
    .mega-dropdown {
        display: none !important;
    }

    .hero-container-centered,
    .hero-content-centered {
        width: 100%;
        min-width: 0;
        max-width: 100%;
    }

    .hero-changes-grid {
        gap: 16px;
    }
}

@media (max-width: 768px) {
    .container {
        padding-right: 16px;
        padding-left: 16px;
    }

    .section-header {
        margin-bottom: 36px;
    }

    .section-header h2 {
        font-size: clamp(1.7rem, 8vw, 2.1rem);
        line-height: 1.25;
    }

    .hero-section {
        min-height: auto;
        padding-top: 120px;
        padding-bottom: 64px;
    }

    .hero-container-centered {
        padding-right: 0;
        padding-left: 0;
    }

    .hero-content-centered h1 {
        font-size: clamp(2rem, 10vw, 2.5rem);
        line-height: 1.18;
    }

    .hero-desc-main-centered {
        margin-bottom: 36px;
        font-size: 1rem;
        line-height: 1.65;
    }

    .hero-changes-section {
        margin-bottom: 36px;
    }

    .hero-changes-title-centered {
        margin-bottom: 20px;
        font-size: 1.15rem;
    }

    .hero-changes-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .hero-change-card {
        padding: 20px;
    }

    .hero-buttons-centered {
        width: 100%;
        flex-direction: column;
        align-items: stretch;
    }

    .hero-container {
        gap: 28px;
    }

    .hero-container > *,
    .integration-section .container > *,
    .appointment-container > * {
        width: 100%;
        min-width: 0;
        max-width: 100%;
    }

    .hero-content h1 {
        font-size: clamp(2rem, 10vw, 2.5rem);
        line-height: 1.18;
    }

    .hero-desc {
        font-size: 1rem;
    }

    .hero-buttons {
        width: 100%;
        flex-direction: column;
        align-items: stretch;
    }

    .hero-buttons .btn,
    .hero-buttons-centered .btn,
    .appointment-form-wrapper .btn,
    .assistant-input-wrapper .btn {
        width: 100%;
        min-height: 48px;
    }

    .btn,
    .matrix-side-item,
    .showroom-step-btn {
        min-height: 44px;
    }

    .hero-visual {
        width: 100%;
        min-width: 0;
        overflow: hidden;
    }

    .cyber-core-container {
        flex: 0 0 320px;
        margin-top: -32px;
        margin-bottom: -32px;
        transform: scale(0.78);
        transform-origin: center;
    }

    .demo-tabs {
        max-width: 100%;
        overscroll-behavior-x: contain;
        -webkit-overflow-scrolling: touch;
    }

    .tab-btn,
    .quick-q-btn,
    .zkj-tab-pill-btn,
    .zkj-sub-pill-btn {
        min-height: 44px;
    }

    .demo-content {
        min-width: 0;
    }

    .integration-section {
        padding: 64px 0;
        overflow: hidden;
    }

    .integration-section .container {
        gap: 24px;
        overflow: hidden;
    }

    .integration-content,
    .integration-features,
    .int-feat-item {
        width: 100%;
        min-width: 0;
        max-width: 100%;
    }

    .integration-section .container > .integration-visual {
        left: 50%;
        width: 380px;
        min-width: 380px;
        max-width: none;
        margin: 0 0 0 -190px;
        transform: none;
        transform-origin: center;
    }

    .metrics-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 16px;
    }

    .appointment-form-wrapper {
        width: 100%;
        padding: 24px 16px;
    }

    input,
    select,
    textarea {
        max-width: 100%;
        font-size: 16px;
    }

    .booking-form input,
    .booking-form select,
    .booking-form textarea,
    .chat-input-wrapper input,
    .assistant-input-wrapper input {
        min-height: 48px;
    }

    .toast-notification {
        right: 16px !important;
        bottom: 16px !important;
        left: 16px !important;
        width: auto;
    }

    .links-group a {
        min-height: 44px;
        display: flex;
        align-items: center;
    }

    .contact-item a {
        min-height: 44px;
        display: inline-flex;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding-right: 12px;
        padding-left: 12px;
    }

    .logo {
        min-width: 0;
        gap: 7px;
    }

    .logo-svg {
        width: 28px;
        height: 28px;
        flex-shrink: 0;
    }

    .logo-text {
        font-size: 0.95rem;
        white-space: nowrap;
    }

    .hero-content-centered h1 {
        font-size: clamp(1.8rem, 9.5vw, 2.15rem);
    }

    .hero-change-card {
        padding: 18px;
    }

    .hero-badges {
        gap: 8px;
    }

    .cyber-core-container {
        margin-top: -48px;
        margin-bottom: -48px;
        transform: scale(0.7);
    }

    .integration-section .container > .integration-visual {
        margin-top: -54px;
        margin-bottom: -54px;
        transform: scale(0.66);
    }

    .metrics-grid {
        grid-template-columns: 1fr;
    }

    .demo-content,
    .voice-core-card,
    .case-detail-board {
        padding: 18px 14px;
    }
}