/* ==================== 欢迎引导页样式 ==================== */
.welcome-page {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    /* 跟随皮肤：蓝(#0f1724/#162033) / 金(#6e593a/#8a7147) / 绿(#285138/#346b4c) 自动联动 */
    background: linear-gradient(135deg, var(--topbar-bg, #0f1724) 0%, var(--sidebar-bg, #162033) 60%, var(--topbar-bg, #0f1724) 100%);
    animation: fadeIn 0.5s ease;
}

.welcome-page.hidden {
    display: none;
    pointer-events: none;
    z-index: -1;
}

.welcome-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    pointer-events: none;
}

#welcome-particle-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.welcome-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    padding: 40px;
    animation: slideUp 0.8s ease;
}

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

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.welcome-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 20px;
    color: #FFFFFF;
    backdrop-filter: blur(4px);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
    animation: pulse 2s ease infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.welcome-title {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 20px;
}

.title-gradient {
    color: #FFFFFF;
    -webkit-text-fill-color: #FFFFFF;
}

.title-highlight {
    color: #FFFFFF;
    -webkit-text-fill-color: #FFFFFF;
    text-shadow: 0 0 24px rgba(255, 255, 255, 0.35);
}

.welcome-subtitle {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 48px;
    line-height: 1.8;
}

.highlight-time {
    color: #FFFFFF;
    font-weight: 700;
}

.welcome-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 56px;
}

.stat-box {
    text-align: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    min-width: 120px;
    transition: all 0.3s ease;
}

.stat-box:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.35);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.stat-box .stat-number {
    font-size: 36px;
    font-weight: 800;
    color: #FFFFFF;
    margin-bottom: 8px;
}

.stat-box .stat-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
}

.welcome-features {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-bottom: 40px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    font-size: 15px;
    color: #FFFFFF;
}

.feature-icon {
    font-size: 24px;
}

.welcome-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
}

.btn-lg {
    padding: 16px 40px;
    font-size: 18px;
}

.btn-ghost {
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: rgba(255, 255, 255, 0.7);
    padding: 14px 32px;
}

.btn-ghost:hover {
    border-color: rgba(255, 255, 255, 0.5);
    color: #FFFFFF;
    background: rgba(255, 255, 255, 0.05);
}

.skip-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.skip-checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.skip-checkbox-label:hover {
    opacity: 1;
}

.skip-checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: rgba(255, 255, 255, 0.9);
}

.skip-checkbox-text {
    user-select: none;
}

.welcome-hint {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

/* ==================== 快速体验按钮 ==================== */
.quick-demo-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover, var(--primary-color)) 100%);
    border: none;
    border-radius: 6px;
    color: white;
    font-size: 13px;
    font-weight: 500;
    font-family: var(--font-family);
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.quick-demo-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.demo-icon {
    font-size: 14px;
}

.demo-text {
    font-size: 13px;
}

/* ==================== Demo 案例选择器 ==================== */
/* ============================================================
   Demo 选择弹窗 v2 Premium — "Try Before You Trust"
   设计语言：红渐变 Hero + 分色场景卡片 + 微交互
   ============================================================ */

.demo-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
}

.demo-modal-overlay {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(8px);
}

.demo-modal-content {
    position: relative;
    z-index: 1;
    width: 92%;
    max-width: 560px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow:
        0 25px 60px rgba(0,0,0,0.25),
        0 10px 30px rgba(199,0,11,0.08);
    animation: demoModalIn 0.35s cubic-bezier(0.22,1,0.36,1);
}

@keyframes demoModalIn {
    from { opacity: 0; transform: scale(0.92) translateY(20px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

/* ====== Hero Header：红渐变（与产品弹窗/仪表盘统一）====== */
.demo-modal-hero {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 28px 28px 24px;
    background: linear-gradient(135deg, #C7000B 0%, #E02020 50%, #FF6A3D 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
}
.demo-modal-hero::before {
    content: '';
    position: absolute;
    top: -40%; right: -15%;
    width: 200px; height: 200px;
    border-radius: 50%;
    background: rgba(255,255,255,0.07);
    pointer-events: none;
}
.demo-modal-hero::after {
    content: '';
    position: absolute;
    bottom: -30%; left: 20%;
    width: 120px; height: 120px;
    border-radius: 50%;
    background: rgba(255,255,255,0.04);
    pointer-events: none;
}
.demo-modal-hero .hero-icon {
    width: 44px; height: 44px;
    flex-shrink: 0;
    background: rgba(255,255,255,0.18);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: #fff;
    box-shadow: 0 4px 12px rgba(0,0,0,0.12);
}
.demo-modal-hero h3 {
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: 0.3px;
    margin: 0;
    line-height: 1.2;
    text-shadow: 0 1px 4px rgba(0,0,0,0.15);
}
.demo-modal-hero p {
    font-size: 0.82rem;
    opacity: 0.85;
    margin: 4px 0 0 0;
    font-weight: 400;
}

/* 关闭按钮：浮于 Hero 右上角 */
.demo-close-btn {
    position: absolute;
    top: 14px;
    right: 14px;
    width: 32px; height: 32px;
    background: rgba(255,255,255,0.95);
    border: none;
    border-radius: 50%;
    color: #555;
    font-size: 16px;
    cursor: pointer;
    z-index: 5;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.25s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.demo-close-btn:hover {
    background: #fff;
    color: #C7000B;
    transform: rotate(90deg) scale(1.08);
    box-shadow: 0 4px 14px rgba(199,0,11,0.25);
}

/* ====== Body：暖白渐变背景 ====== */
.demo-modal-body {
    padding: 24px 28px 20px;
    background: linear-gradient(180deg, #FFFCF8 0%, #FFFFFF 100%);
}

/* ====== 场景卡片（分色系统）====== */
.demo-cases {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 20px;
}

.demo-case {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 18px 18px 20px;
    background: linear-gradient(135deg, #FFFDFB, #FFFFFF);
    border: 1px solid rgba(0,0,0,0.06);
    border-left: 4px solid transparent;
    border-radius: 14px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.22,1,0.36,1);
    position: relative;
    overflow: hidden;
}
/* 左侧装饰光晕 */
.demo-case::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 80px;
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: 0 8px 8px 0;
}
.demo-case:hover {
    transform: translateY(-2px) translateX(3px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.10), 0 2px 8px rgba(0,0,0,0.04);
}
.demo-case:hover::before {
    opacity: 0.08;
}

/* 制造业 — 工业橙 */
.demo-case[data-case="manufacturing"] {
    border-left-color: #F59E0B;
}
.demo-case[data-case="manufacturing"]:hover {
    border-color: rgba(245,158,11,0.30);
    box-shadow: 0 8px 24px rgba(245,158,11,0.12), 0 2px 8px rgba(0,0,0,0.04);
}
.demo-case[data-case="manufacturing"]::before { background: linear-gradient(90deg, #F59E0B, transparent); }
.demo-case[data-case="manufacturing"] .case-icon {
    color: #F59E0B;
    background: rgba(245,158,11,0.10);
}
.demo-case[data-case="manufacturing"] .case-icon svg { filter: drop-shadow(0 2px 6px rgba(245,158,11,0.25)); }

/* 农业 — 森林绿 */
.demo-case[data-case="agriculture"] {
    border-left-color: #22A85A;
}
.demo-case[data-case="agriculture"]:hover {
    border-color: rgba(34,168,90,0.30);
    box-shadow: 0 8px 24px rgba(34,168,90,0.12), 0 2px 8px rgba(0,0,0,0.04);
}
.demo-case[data-case="agriculture"]::before { background: linear-gradient(90deg, #22A85A, transparent); }
.demo-case[data-case="agriculture"] .case-icon {
    color: #22A85A;
    background: rgba(34,168,90,0.10);
}
.demo-case[data-case="agriculture"] .case-icon svg { filter: drop-shadow(0 2px 6px rgba(34,168,90,0.25)); }

/* 园区 — 科技蓝 */
.demo-case[data-case="park"] {
    border-left-color: #3B82F6;
}
.demo-case[data-case="park"]:hover {
    border-color: rgba(59,130,246,0.30);
    box-shadow: 0 8px 24px rgba(59,130,246,0.12), 0 2px 8px rgba(0,0,0,0.04);
}
.demo-case[data-case="park"]::before { background: linear-gradient(90deg, #3B82F6, transparent); }
.demo-case[data-case="park"] .case-icon {
    color: #3B82F6;
    background: rgba(59,130,246,0.10);
}
.demo-case[data-case="park"] .case-icon svg { filter: drop-shadow(0 2px 6px rgba(59,130,246,0.25)); }

/* 图标容器 */
.case-icon {
    width: 48px; height: 48px;
    min-width: 48px;
    border-radius: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    transition: all 0.3s cubic-bezier(0.22,1,0.36,1);
}
.demo-case:hover .case-icon {
    transform: scale(1.06) rotate(-3deg);
}

/* 文案区域 */
.case-info h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 4px;
    letter-spacing: 0.2px;
}
.case-info p {
    font-size: 0.82rem;
    color: #888;
    line-height: 1.45;
}

/* ====== Footer：引导提示 ====== */
.demo-modal-footer {
    padding: 0 28px 22px;
    text-align: center;
}
.demo-tip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.78rem;
    color: #aaa;
    background: rgba(0,0,0,0.03);
    padding: 7px 16px;
    border-radius: 20px;
}

/* ==================== 演示提示 ==================== */
.demo-notice {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 999;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    background: rgba(82, 196, 26, 0.9);
    border-radius: 12px;
    color: white;
    font-size: 14px;
    box-shadow: 0 4px 20px rgba(82, 196, 26, 0.3);
    animation: slideInRight 0.3s ease;
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(50px); }
    to { opacity: 1; transform: translateX(0); }
}

.notice-icon {
    font-size: 20px;
}

.notice-close {
    background: transparent;
    border: none;
    color: white;
    font-size: 16px;
    cursor: pointer;
    padding: 4px;
}

/* ==================== 响应式适配 ==================== */
@media (max-width: 1023px) {
    .quick-demo-btn {
        display: none;
    }
}

@media (max-width: 768px) {
    .welcome-content {
        padding: 24px 16px;
        max-width: 100%;
        width: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        min-height: 100vh;
    }
    
    .welcome-badge {
        padding: 6px 14px;
        font-size: 12px;
        margin-bottom: 16px;
    }
    
    .welcome-title {
        font-size: 26px;
        font-weight: 700;
        line-height: 1.3;
        margin-bottom: 12px;
    }
    
    .welcome-subtitle {
        font-size: 13px;
        color: rgba(255, 255, 255, 0.65);
        margin-bottom: 24px;
        line-height: 1.6;
    }
    
    /* 统计卡片 - 横向三列紧凑排列 */
    .welcome-stats {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
        margin-bottom: 20px;
        padding: 0 4px;
    }
    
    .stat-box {
        padding: 12px 4px;
        min-width: 0;
        border-radius: 10px;
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid rgba(255, 255, 255, 0.08);
    }
    
    .stat-box .stat-number {
        font-size: 22px;
        font-weight: 700;
        margin-bottom: 4px;
    }
    
    .stat-box .stat-label {
        font-size: 11px;
        color: rgba(255, 255, 255, 0.55);
    }
    
    /* 功能特性 - 横向排列，小标签 */
    .welcome-features {
        display: flex;
        justify-content: center;
        gap: 8px;
        margin-bottom: 24px;
        flex-wrap: wrap;
    }
    
    .feature-item {
        padding: 8px 12px;
        font-size: 13px;
        gap: 6px;
        border-radius: 8px;
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid rgba(255, 255, 255, 0.08);
    }
    
    .feature-icon {
        font-size: 16px;
    }
    
    /* 按钮区域 */
    .welcome-actions {
        gap: 12px;
        margin-bottom: 16px;
    }
    
    .btn-lg {
        padding: 12px 36px;
        font-size: 16px;
        width: 100%;
        max-width: 280px;
    }
    
    .btn-ghost {
        padding: 10px 28px;
        font-size: 14px;
    }
    
    .skip-option {
        gap: 10px;
    }
    
    .skip-checkbox-label {
        font-size: 12px;
    }
    
    .welcome-hint {
        font-size: 11px;
    }
    
    .demo-modal-content {
        width: 94%;
    }

    .demo-modal-hero {
        padding: 22px 18px 18px;
    }
    .demo-modal-hero h3 { font-size: 1.1rem; }
    .demo-modal-hero p { font-size: 0.75rem; }
    .demo-modal-hero .hero-icon { width: 38px; height: 38px; font-size: 19px; }

    .demo-modal-body {
        padding: 18px 16px 16px;
    }

    .demo-case {
        padding: 14px 14px 14px 16px;
        gap: 12px;
        border-radius: 12px;
    }

    .case-icon {
        width: 40px; height: 40px; min-width: 40px;
        font-size: 20px;
        border-radius: 10px;
    }
    
    .demo-notice {
        top: 16px;
        left: 16px;
        right: 16px;
        padding: 12px 16px;
        font-size: 13px;
    }
}