/* 能源科技感设计 - 全局样式 */
:root {
    --energy-primary: #00d4ff;
    --energy-secondary: #0099cc;
    --energy-accent: #ff6b35;
    --energy-success: #00ff88;
    --energy-warning: #ffaa00;
    --energy-dark: #0a0e1a;
    --energy-darker: #05080f;
    --energy-light: #1a2332;
    --energy-lighter: #2a3441;
    --energy-text: #e8f4f8;
    --energy-text-secondary: #b8c5d1;
    --energy-gradient: linear-gradient(135deg, #00d4ff 0%, #0099cc 50%, #ff6b35 100%);
    --energy-glow: 0 0 20px rgba(0, 212, 255, 0.3);
    --energy-border: 1px solid rgba(0, 212, 255, 0.2);
    
    /* 新增：版本和升级相关颜色 */
    --version-free: #6c757d;
    --version-pro: #007bff;
    --version-enterprise: #28a745;
    --ad-background: rgba(255, 255, 255, 0.05);
    --ad-border: 1px solid rgba(0, 212, 255, 0.3);
}

/* 能源科技背景 */
body {
    background: var(--energy-dark);
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 107, 53, 0.1) 0%, transparent 50%),
        linear-gradient(135deg, var(--energy-darker) 0%, var(--energy-dark) 100%);
    color: var(--energy-text);
    font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* 能源科技网格背景 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.3;
    z-index: -1;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

/* 加载进度条 - 能源科技风格 */
.loading-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    background: var(--energy-gradient);
    box-shadow: var(--energy-glow);
    transition: width 0.3s ease;
    z-index: 9999;
    border-radius: 0 0 4px 0;
}

/* 能源科技容器样式 */
.container {
    background: var(--energy-light);
    border: var(--energy-border);
    border-radius: 16px;
    box-shadow: 
        var(--energy-glow),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--energy-gradient);
    border-radius: 16px 16px 0 0;
}

/* 能源科技表单样式 */
.form-section {
    background: rgba(26, 35, 50, 0.6);
    border: var(--energy-border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
    position: relative;
    backdrop-filter: blur(5px);
}

.form-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--energy-gradient);
    border-radius: 12px 12px 0 0;
}

/* 能源科技输入框样式 */
input, select, textarea {
    background: var(--energy-darker);
    border: var(--energy-border);
    border-radius: 8px;
    color: var(--energy-text);
    padding: 12px 16px;
    font-size: 14px;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--energy-primary);
    box-shadow: 
        0 0 0 2px rgba(0, 212, 255, 0.2),
        var(--energy-glow);
    background: var(--energy-light);
}

/* 能源科技按钮样式 */
button, .btn {
    background: var(--energy-gradient);
    border: none;
    border-radius: 8px;
    color: white;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

button:hover, .btn:hover {
    transform: translateY(-2px);
    box-shadow: 
        var(--energy-glow),
        0 8px 25px rgba(0, 212, 255, 0.3);
}

button:active, .btn:active {
    transform: translateY(0);
}

button::before, .btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

button:hover::before, .btn:hover::before {
    left: 100%;
}

/* 能源科技结果区域样式 */
.result-area {
    background: var(--energy-light);
    border: var(--energy-border);
    border-radius: 12px;
    padding: 24px;
    margin-top: 24px;
    position: relative;
    backdrop-filter: blur(10px);
}

.result-area::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--energy-gradient);
    border-radius: 12px 12px 0 0;
}

/* 能源科技数据卡片样式 */
.data-card {
    background: rgba(26, 35, 50, 0.8);
    border: var(--energy-border);
    border-radius: 8px;
    padding: 16px;
    margin: 8px 0;
    position: relative;
    backdrop-filter: blur(5px);
    transition: all 0.3s ease;
}

.data-card:hover {
    border-color: var(--energy-primary);
    box-shadow: var(--energy-glow);
    transform: translateY(-2px);
}

.data-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--energy-gradient);
    border-radius: 4px 0 0 4px;
}

/* 能源科技标题样式 */
h1, h2, h3, h4, h5, h6 {
    color: var(--energy-text);
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
    position: relative;
}

h1::after, h2::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 60px;
    height: 2px;
    background: var(--energy-gradient);
    border-radius: 2px;
}

/* 能源科技Tooltip样式 */
[data-tooltip] {
    position: relative;
    cursor: help;
}

[data-tooltip]:hover::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 12px 16px;
    background: var(--energy-darker);
    color: var(--energy-text);
    border: var(--energy-border);
    border-radius: 8px;
    font-size: 14px;
    white-space: nowrap;
    z-index: 1000;
    box-shadow: var(--energy-glow);
    backdrop-filter: blur(10px);
}

/* 能源科技动画效果 */
@keyframes energyPulse {
    0%, 100% { 
        box-shadow: var(--energy-glow);
        transform: scale(1);
    }
    50% { 
        box-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
        transform: scale(1.02);
    }
}

@keyframes energyFlow {
    0% { 
        background-position: 0% 50%;
    }
    50% { 
        background-position: 100% 50%;
    }
    100% { 
        background-position: 0% 50%;
    }
}

@keyframes energyScan {
    0% { 
        transform: translateX(-100%);
    }
    100% { 
        transform: translateX(100%);
    }
}

/* 能源科技数据流动效果 */
.energy-flow {
    position: relative;
    overflow: hidden;
}

.energy-flow::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.3), transparent);
    animation: energyScan 3s ease-in-out infinite;
}

/* 能源科技状态指示器 */
.status-indicator {
    position: relative;
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--energy-success);
    box-shadow: 0 0 10px var(--energy-success);
    animation: energyPulse 2s ease-in-out infinite;
}

.status-indicator.loading {
    background: var(--energy-warning);
    box-shadow: 0 0 10px var(--energy-warning);
}

.status-indicator.error {
    background: var(--energy-accent);
    box-shadow: 0 0 10px var(--energy-accent);
}

/* 能源科技图表容器 */
.chart-container {
    background: var(--energy-darker);
    border: var(--energy-border);
    border-radius: 12px;
    padding: 20px;
    margin: 16px 0;
    position: relative;
    backdrop-filter: blur(10px);
}

.chart-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--energy-gradient);
    border-radius: 12px 12px 0 0;
}

/* 能源科技表单验证消息 */
.validation-message {
    color: var(--energy-accent);
    font-size: 12px;
    margin-top: 5px;
    display: none;
    text-shadow: 0 0 5px rgba(255, 107, 53, 0.5);
}

.validation-message.show {
    display: block;
    animation: energyPulse 0.5s ease-in-out;
}

/* 历史记录样式 */
.history-container {
    margin-top: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    max-height: 300px;
    overflow-y: auto;
}

.history-item {
    background: white;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.history-time {
    color: #6c757d;
    font-size: 12px;
    margin-bottom: 5px;
}

.history-details {
    font-size: 14px;
}

/* 能源科技深色模式增强 */
.dark-mode {
    background: var(--energy-darker);
    color: var(--energy-text);
}

.dark-mode .container {
    background: var(--energy-light);
    box-shadow: 
        var(--energy-glow),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.dark-mode input,
.dark-mode select {
    background: var(--energy-darker);
    color: var(--energy-text);
    border-color: var(--energy-primary);
}

.dark-mode .form-section {
    background: rgba(26, 35, 50, 0.8);
    border-color: var(--energy-primary);
}

.dark-mode .result-area {
    background: var(--energy-light);
    border-color: var(--energy-primary);
}

/* 能源科技响应式设计 */
@media (max-width: 1024px) {
    .container {
        margin: 15px;
        padding: 20px;
    }
    
    .form-section {
        padding: 20px;
    }
}

@media (max-width: 768px) {
    .container {
        margin: 10px;
        padding: 15px;
        border-radius: 12px;
    }
    
    .form-section {
        padding: 15px;
    }
    
    .btn {
        width: 100%;
        margin-bottom: 10px;
    }
    
    .result-area {
        padding: 15px;
    }
    
    .version-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .ad-banner {
        padding: 15px;
        margin: 15px 0;
    }
    
    .upgrade-prompt {
        padding: 15px;
    }
}

@media (max-width: 480px) {
    .container {
        margin: 5px;
        padding: 10px;
        border-radius: 8px;
    }
    
    .form-section {
        padding: 10px;
    }
    
    .btn {
        padding: 10px 15px;
        font-size: 12px;
    }
    
    .result-area {
        padding: 10px;
    }
    
    .version-header {
        gap: 10px;
    }
    
    .ad-banner {
        padding: 10px;
        margin: 10px 0;
    }
    
    .upgrade-prompt {
        padding: 10px;
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    h2 {
        font-size: 1.2rem;
    }
    
    h3 {
        font-size: 1rem;
    }
    }
    
    .form-section {
        padding: 16px;
        margin-bottom: 16px;
    }
    
    input, select, textarea {
        padding: 10px 12px;
        font-size: 13px;
    }
    
    button, .btn {
        padding: 10px 20px;
        font-size: 13px;
    }
}

/* 能源科技打印样式 */
@media print {
    body {
        background: white;
        color: black;
    }
    
    .container {
        background: white;
        border: 1px solid #ccc;
        box-shadow: none;
    }
    
    .form-section, .result-area {
        background: #f8f9fa;
        border: 1px solid #dee2e6;
    }
}

/* 主题切换按钮 */
#theme-toggle {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    padding: 5px;
    margin-left: 10px;
}

/* 面包屑导航 */
.breadcrumb {
    display: flex;
    align-items: center;
    padding: 10px 0;
    margin-bottom: 20px;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
}

.breadcrumb-item:not(:last-child)::after {
    content: "→";
    margin: 0 10px;
    color: #6c757d;
}

.breadcrumb-item.active {
    color: #4CAF50;
    font-weight: bold;
}

/* 移动端响应式布局 */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }

    .form-section {
        padding: 10px;
    }

    .language-selector {
        position: static;
        margin-bottom: 20px;
        text-align: center;
    }

    .breadcrumb {
        flex-wrap: wrap;
    }
}

/* 在线客服 */
.customer-service {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #4CAF50;
    color: white;
    padding: 10px 20px;
    border-radius: 20px;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    z-index: 1000;
}

.customer-service:hover {
    background: #45a049;
}

/* 数据可视化 */
.chart-container {
    margin: 20px 0;
    padding: 15px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

/* PDF导出按钮 */
.export-pdf-btn {
    background-color: #2196F3;
    color: white;
    padding: 8px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 10px;
}

.export-pdf-btn:hover {
    background-color: #1976D2;
}

/* FAQ部分 */
.faq-section {
    margin-top: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
}

.faq-item {
    margin-bottom: 15px;
}

.faq-question {
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 5px;
}

.faq-answer {
    color: #666;
    padding-left: 15px;
}

/* 碳价格走势图 */
.carbon-price-trend {
    margin: 20px 0;
    padding: 15px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

/* 减排建议样式 */
.reduction-suggestions {
    margin-top: 20px;
    padding: 15px;
    background: #e8f5e9;
    border-radius: 8px;
}

.suggestion-item {
    margin-bottom: 10px;
    padding: 10px;
    background: white;
    border-radius: 4px;
    border-left: 3px solid #4CAF50;
}

/* ========== 版本标识和升级系统样式 ========== */

/* 版本头部区域 */
.version-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding: 15px 20px;
    background: var(--energy-light);
    border: var(--energy-border);
    border-radius: 10px;
    backdrop-filter: blur(10px);
}

/* 版本标识 */
.version-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 14px;
}

.version-badge.free-version {
    background: var(--version-free);
    color: white;
}

.version-icon {
    font-size: 16px;
}

.version-text {
    font-size: 14px;
}

/* 升级按钮 */
.upgrade-button {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--energy-gradient);
    color: white;
    border: none;
    border-radius: 25px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--energy-glow);
}

.upgrade-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 212, 255, 0.4);
}

.upgrade-icon {
    font-size: 16px;
}

.upgrade-text {
    font-size: 14px;
}

/* ========== 广告位样式 ========== */

.ad-container {
    margin: 20px 0;
    padding: 15px;
    background: var(--ad-background);
    border: var(--ad-border);
    border-radius: 8px;
    backdrop-filter: blur(5px);
}

.ad-container.ad-bottom {
    margin: 30px auto;
    max-width: 800px;
}

.ad-container.ad-sidebar {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 200px;
    z-index: 1000;
}

.ad-label {
    font-size: 12px;
    color: var(--energy-text-secondary);
    margin-bottom: 10px;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.ad-content {
    text-align: center;
}

.ad-placeholder {
    padding: 20px;
    color: var(--energy-text-secondary);
    font-size: 14px;
    line-height: 1.5;
}

.ad-placeholder p {
    margin: 5px 0;
}

/* ========== 升级弹窗样式 ========== */

.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    position: relative;
    background: var(--energy-light);
    margin: 5% auto;
    padding: 30px;
    border: var(--energy-border);
    border-radius: 15px;
    width: 90%;
    max-width: 1000px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.close {
    position: absolute;
    right: 20px;
    top: 20px;
    color: var(--energy-text-secondary);
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close:hover {
    color: var(--energy-primary);
}

.modal-content h2 {
    text-align: center;
    margin-bottom: 30px;
    color: var(--energy-text);
    font-size: 28px;
}

/* 计划卡片 */
.plan-card {
    display: inline-block;
    width: 30%;
    margin: 0 1.5%;
    padding: 25px;
    background: var(--energy-lighter);
    border: var(--energy-border);
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    vertical-align: top;
    position: relative;
}

.plan-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--energy-glow);
}

.plan-card.free {
    border-color: var(--version-free);
}

.plan-card.pro {
    border-color: var(--version-pro);
    background: linear-gradient(135deg, var(--energy-lighter) 0%, rgba(0, 123, 255, 0.1) 100%);
}

.plan-card.enterprise {
    border-color: var(--version-enterprise);
    background: linear-gradient(135deg, var(--energy-lighter) 0%, rgba(40, 167, 69, 0.1) 100%);
}

.plan-header {
    margin-bottom: 20px;
}

.plan-header h3 {
    font-size: 24px;
    margin-bottom: 10px;
    color: var(--energy-text);
}

.plan-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.plan-badge.current {
    background: var(--version-free);
    color: white;
}

.plan-badge.popular {
    background: var(--version-pro);
    color: white;
}

.plan-badge.premium {
    background: var(--version-enterprise);
    color: white;
}

.plan-pricing {
    margin-bottom: 20px;
}

.price-main {
    font-size: 32px;
    font-weight: 700;
    color: var(--energy-primary);
    margin-bottom: 5px;
}

.price-unit {
    font-size: 16px;
    font-weight: 400;
    color: var(--energy-text-secondary);
}

.price-sub {
    font-size: 14px;
    color: var(--energy-text-secondary);
    margin-bottom: 10px;
}

.plan-features {
    margin-bottom: 25px;
}

.plan-features ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.plan-features li {
    padding: 8px 0;
    color: var(--energy-text-secondary);
    font-size: 14px;
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.plan-features li:last-child {
    border-bottom: none;
}

.plan-button {
    width: 100%;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.plan-button.current {
    background: var(--version-free);
    color: white;
    cursor: not-allowed;
}

.plan-button.pro {
    background: var(--version-pro);
    color: white;
}

.plan-button.pro:hover {
    background: #0056b3;
    transform: translateY(-2px);
}

.plan-button.enterprise {
    background: var(--version-enterprise);
    color: white;
}

.plan-button.enterprise:hover {
    background: #1e7e34;
    transform: translateY(-2px);
}

/* ========== 专业版页面样式 ========== */

/* 专业版版本标识 */
.version-badge.pro-version {
    background: var(--version-pro);
    color: white;
}

.pro-features-indicator {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.feature-badge {
    padding: 4px 12px;
    background: rgba(0, 123, 255, 0.2);
    color: var(--energy-primary);
    border: 1px solid var(--version-pro);
    border-radius: 15px;
    font-size: 12px;
    font-weight: 600;
}

/* 专业版导航 */
.pro-navigation {
    display: flex;
    gap: 10px;
    margin: 20px 0;
    padding: 15px;
    background: var(--energy-light);
    border: var(--energy-border);
    border-radius: 10px;
    flex-wrap: wrap;
}

.pro-nav-btn {
    padding: 12px 20px;
    background: transparent;
    color: var(--energy-text-secondary);
    border: 1px solid var(--energy-border);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 120px;
    justify-content: center;
}

.nav-icon {
    font-size: 16px;
}

.nav-text {
    font-size: 14px;
}

.nav-desc {
    font-size: 10px;
    color: var(--energy-text-secondary);
    margin-top: 2px;
}

/* 专业版功能展示 */
.pro-features-showcase {
    margin: 20px 0;
    padding: 20px;
    background: linear-gradient(135deg, var(--energy-dark) 0%, var(--energy-darker) 100%);
    border-radius: 15px;
    border: 2px solid var(--energy-primary);
}

.feature-highlight h3 {
    color: var(--energy-primary);
    text-align: center;
    margin-bottom: 25px;
    font-size: 24px;
    font-weight: 700;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.feature-card {
    background: var(--energy-lighter);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--energy-border);
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--energy-primary), var(--energy-secondary));
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 212, 255, 0.2);
    border-color: var(--energy-primary);
}

.feature-card:active {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 212, 255, 0.3);
}

.feature-icon {
    font-size: 32px;
    margin-bottom: 15px;
    display: block;
}

.feature-card h4 {
    color: var(--energy-text);
    margin-bottom: 10px;
    font-size: 16px;
    font-weight: 600;
}

.feature-card p {
    color: var(--energy-text-secondary);
    font-size: 13px;
    line-height: 1.5;
    margin: 0 0 10px 0;
}

.feature-benefits {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 10px;
}

.benefit-tag {
    display: inline-block;
    padding: 4px 8px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--energy-primary);
    border-radius: 12px;
    font-size: 11px;
    color: var(--energy-primary);
    font-weight: 500;
}

/* 成本优化建议样式 */
.cost-optimization {
    margin-top: 20px;
    padding: 20px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 10px;
    border: 1px solid var(--energy-border);
}

.cost-optimization h6 {
    color: var(--energy-primary);
    margin-bottom: 15px;
    font-size: 16px;
    font-weight: 600;
}

.suggestion-item {
    margin-bottom: 20px;
    padding: 15px;
    background: white;
    border-radius: 8px;
    border-left: 4px solid var(--energy-primary);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.suggestion-item h7 {
    color: var(--energy-text);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 10px;
    display: block;
}

.suggestion-item ul {
    margin: 0;
    padding-left: 20px;
    color: var(--energy-text-secondary);
}

.suggestion-item li {
    margin-bottom: 5px;
    font-size: 13px;
    line-height: 1.4;
}

/* 功能优势展示 */
.feature-benefits {
    display: flex;
    gap: 20px;
    margin-top: 15px;
    flex-wrap: wrap;
    justify-content: center;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--energy-primary);
    border-radius: 20px;
    font-size: 12px;
    color: var(--energy-text);
    font-weight: 500;
}

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

/* 专业版功能区域优化 */
.pro-feature-header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background: linear-gradient(135deg, var(--energy-lighter) 0%, var(--energy-light) 100%);
    border-radius: 12px;
    border: 1px solid var(--energy-border);
}

.pro-feature-header h2 {
    color: var(--energy-primary);
    margin-bottom: 10px;
    font-size: 28px;
    font-weight: 700;
}

.pro-feature-header p {
    color: var(--energy-text-secondary);
    font-size: 16px;
    margin-bottom: 15px;
}

/* 快速开始指南 */
.quick-start-guide {
    margin: 30px 0;
    padding: 25px;
    background: linear-gradient(135deg, var(--energy-light) 0%, var(--energy-lighter) 100%);
    border-radius: 15px;
    border: 2px solid var(--energy-border);
}

.quick-start-guide h3 {
    color: var(--energy-primary);
    text-align: center;
    margin-bottom: 25px;
    font-size: 22px;
    font-weight: 700;
}

.guide-steps {
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
}

.step-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: var(--energy-lighter);
    border-radius: 12px;
    border: 1px solid var(--energy-border);
    min-width: 200px;
    transition: all 0.3s ease;
}

.step-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 212, 255, 0.15);
    border-color: var(--energy-primary);
}

.step-number {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--energy-primary), var(--energy-secondary));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    flex-shrink: 0;
}

.step-content h4 {
    color: var(--energy-text);
    margin-bottom: 5px;
    font-size: 16px;
    font-weight: 600;
}

.step-content p {
    color: var(--energy-text-secondary);
    font-size: 13px;
    margin: 0;
    line-height: 1.4;
}

/* 页面导航链接 */
.nav-links {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin: 20px 0;
    padding: 15px;
    background: var(--energy-lighter);
    border-radius: 10px;
    border: 1px solid var(--energy-border);
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: transparent;
    color: var(--energy-text-secondary);
    text-decoration: none;
    border: 1px solid var(--energy-border);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.nav-link:hover {
    background: var(--energy-primary);
    color: white;
    border-color: var(--energy-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.3);
}

.nav-link.active {
    background: var(--energy-primary);
    color: white;
    border-color: var(--energy-primary);
    box-shadow: 0 2px 8px rgba(0, 212, 255, 0.2);
}

/* PRO功能标识 */
.pro-feature {
    position: relative;
    border: 2px solid var(--energy-primary) !important;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, rgba(0, 212, 255, 0.05) 100%) !important;
}

.pro-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    color: white;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    animation: pulse 2s infinite;
}

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

.pro-feature:hover {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.2) 0%, rgba(0, 212, 255, 0.1) 100%) !important;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 212, 255, 0.3);
}

/* 功能卡片PRO标识 */
.feature-card .pro-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    color: white;
    font-size: 10px;
    font-weight: 700;
    padding: 4px 8px;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    animation: pulse 2s infinite;
}

/* 报告预览样式 */
.report-preview {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 1px solid var(--energy-border);
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 20px;
}

.preview-info h4 {
    color: var(--energy-primary);
    margin-bottom: 15px;
}

.preview-info p {
    margin-bottom: 8px;
    color: var(--energy-text);
}

/* 预警提示样式 */
.alert-tip {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
    border: 1px solid #ffc107;
    border-radius: 8px;
    padding: 15px;
    margin-top: 15px;
}

.tip-content h5 {
    color: #856404;
    margin-bottom: 10px;
}

.tip-content p {
    color: #856404;
    margin: 0;
}

/* 无数据提示样式 */
.no-data-message {
    background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    border: 1px solid #dc3545;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    text-align: center;
}

.message-content h4 {
    color: #721c24;
    margin-bottom: 10px;
}

.message-content p {
    color: #721c24;
    margin-bottom: 15px;
}

/* 紧凑的核心功能展示 */
.pro-core-features {
    margin: 20px 0;
    padding: 15px;
    background: linear-gradient(135deg, var(--energy-dark) 0%, var(--energy-darker) 100%);
    border-radius: 10px;
    border: 1px solid var(--energy-primary);
}

.core-feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.core-feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 15px;
    background: var(--energy-lighter);
    border-radius: 8px;
    border: 1px solid var(--energy-border);
    transition: all 0.3s ease;
}

.core-feature-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.2);
    border-color: var(--energy-primary);
}

.core-feature-item .feature-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.core-feature-item .feature-text h4 {
    color: var(--energy-text);
    margin: 0 0 4px 0;
    font-size: 14px;
    font-weight: 600;
}

.core-feature-item .feature-text p {
    color: var(--energy-text-secondary);
    margin: 0;
    font-size: 12px;
    line-height: 1.3;
}

.pro-nav-btn:hover {
    background: var(--energy-lighter);
    color: var(--energy-text);
}

.pro-nav-btn.active {
    background: var(--version-pro);
    color: white;
    border-color: var(--version-pro);
}

/* 专业版区域 */
.pro-section {
    display: none;
    margin-top: 20px;
}

.pro-section.active {
    display: block;
}

.pro-feature-header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background: var(--energy-light);
    border: var(--energy-border);
    border-radius: 10px;
}

.pro-feature-header h2 {
    color: var(--energy-text);
    margin-bottom: 10px;
}

.pro-feature-header p {
    color: var(--energy-text-secondary);
    font-size: 16px;
}

/* 批量计算样式 */
.batch-upload-area {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

.upload-zone {
    padding: 40px;
    border: 2px dashed var(--energy-border);
    border-radius: 10px;
    text-align: center;
    background: var(--energy-lighter);
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-zone:hover {
    border-color: var(--energy-primary);
    background: rgba(0, 212, 255, 0.1);
}

.upload-zone.dragover {
    border-color: var(--energy-primary);
    background: rgba(0, 212, 255, 0.2);
}

.upload-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.batch-template-download {
    padding: 20px;
    background: var(--energy-lighter);
    border: var(--energy-border);
    border-radius: 10px;
}

/* Excel格式要求样式 */
.excel-format-requirements {
    margin-top: 20px;
    padding: 15px;
    background: var(--energy-dark);
    border: var(--energy-border);
    border-radius: 8px;
}

.excel-format-requirements h5 {
    color: var(--energy-primary);
    margin-bottom: 15px;
    font-size: 16px;
}

.format-table {
    overflow-x: auto;
    margin-bottom: 15px;
}

.format-table table {
    width: 100%;
    border-collapse: collapse;
    background: var(--energy-lighter);
    border-radius: 6px;
    overflow: hidden;
}

.format-table th,
.format-table td {
    padding: 8px 12px;
    text-align: left;
    border-bottom: 1px solid var(--energy-border);
    font-size: 12px;
}

.format-table th {
    background: var(--energy-dark);
    color: var(--energy-text);
    font-weight: 600;
}

.format-table td {
    color: var(--energy-text-secondary);
}

.format-notes {
    background: rgba(0, 212, 255, 0.1);
    padding: 12px;
    border-radius: 6px;
    border-left: 3px solid var(--energy-primary);
}

.format-notes p {
    color: var(--energy-text);
    margin-bottom: 8px;
    font-weight: 600;
}

.format-notes ul {
    margin: 0;
    padding-left: 20px;
    color: var(--energy-text-secondary);
}

.format-notes li {
    margin-bottom: 4px;
    font-size: 13px;
}

.batch-results {
    margin-top: 30px;
    padding: 20px;
    background: var(--energy-light);
    border: var(--energy-border);
    border-radius: 10px;
}

.results-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.summary-item {
    padding: 15px;
    background: var(--energy-lighter);
    border-radius: 8px;
    text-align: center;
}

.summary-item .label {
    display: block;
    color: var(--energy-text-secondary);
    font-size: 14px;
    margin-bottom: 5px;
}

.summary-item .value {
    display: block;
    color: var(--energy-primary);
    font-size: 24px;
    font-weight: 600;
}

.summary-item .unit {
    color: var(--energy-text-secondary);
    font-size: 12px;
}

.batch-table-container {
    overflow-x: auto;
    margin: 20px 0;
}

.batch-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--energy-lighter);
    border-radius: 8px;
    overflow: hidden;
}

.batch-table th,
.batch-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--energy-border);
}

.batch-table th {
    background: var(--energy-dark);
    color: var(--energy-text);
    font-weight: 600;
}

.batch-table td {
    color: var(--energy-text-secondary);
}

.batch-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 20px;
}

/* 报告生成样式 */
.report-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.report-type-card {
    padding: 25px;
    background: var(--energy-lighter);
    border: var(--energy-border);
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s ease;
}

.report-type-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--energy-glow);
}

.report-type-card h3 {
    color: var(--energy-text);
    margin-bottom: 15px;
}

.report-type-card p {
    color: var(--energy-text-secondary);
    margin-bottom: 20px;
}

.report-type-card ul {
    text-align: left;
    margin-bottom: 20px;
}

.report-type-card li {
    color: var(--energy-text-secondary);
    margin-bottom: 8px;
}

/* 碳价预警样式 */
.alert-setup {
    margin-bottom: 30px;
    padding: 20px;
    background: var(--energy-light);
    border: var(--energy-border);
    border-radius: 10px;
}

.carbon-price-chart {
    padding: 20px;
    background: var(--energy-lighter);
    border: var(--energy-border);
    border-radius: 10px;
}

/* 行业基准样式 */
.benchmark-analysis {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.benchmark-input {
    padding: 20px;
    background: var(--energy-light);
    border: var(--energy-border);
    border-radius: 10px;
}

.benchmark-results {
    padding: 20px;
    background: var(--energy-lighter);
    border: var(--energy-border);
    border-radius: 10px;
}

.benchmark-chart {
    margin: 20px 0;
}

.benchmark-insights {
    margin-top: 20px;
}

.suggestion-item {
    padding: 15px;
    background: var(--energy-dark);
    border-radius: 8px;
    margin-bottom: 15px;
}

.suggestion-item h5 {
    color: var(--energy-primary);
    margin-bottom: 10px;
}

.suggestion-item p {
    color: var(--energy-text-secondary);
    margin-bottom: 10px;
}

.suggestion-item ul {
    color: var(--energy-text-secondary);
    padding-left: 20px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .version-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .ad-container.ad-sidebar {
        position: static;
        transform: none;
        width: 100%;
        margin: 20px 0;
    }
    
    .modal-content {
        width: 95%;
        margin: 10% auto;
        padding: 20px;
    }
    
    .plan-card {
        width: 100%;
        margin: 10px 0;
        display: block;
    }
    
    .price-main {
        font-size: 28px;
    }
    
    .price-sub {
        font-size: 12px;
    }
    
    /* 专业版响应式 */
    .pro-navigation {
        flex-direction: column;
        gap: 10px;
    }
    
    .pro-nav-btn {
        width: 100%;
        text-align: center;
    }
    
    .batch-upload-area {
        grid-template-columns: 1fr;
    }
    
    .benchmark-analysis {
        grid-template-columns: 1fr;
    }
    
    .results-summary {
        grid-template-columns: 1fr;
    }
    
    .report-types {
        grid-template-columns: 1fr;
    }
}