/* 恒努力科技专业色彩方案 - 科技企业专用 */

/* ===== 色彩定义 ===== */

/* 主色调 - 橙色系 */
:root {
    /* 主色 - 橙色 */
    --primary-blue: #ff7b17;        /* 主品牌色 */
    --primary-blue-light: #ff9a4d;   /* 浅一级，用于悬停状态 */
    --primary-blue-dark: #e66a0f;   /* 深一级，用于强调 */
    --primary-blue-darker: #cc5e0d; /* 最深，用于重要元素 */
    
    /* 辅助色 - 橙色系（增强占比） */
    --accent-orange: #ff7b17;       /* 主辅助色 */
    --accent-orange-light: #ff9a4d;  /* 浅一级，用于悬停状态 */
    --accent-orange-dark: #e66a0f;   /* 深一级，用于强调 */
    --accent-orange-subtle: rgba(255, 123, 23, 0.1);   /* 淡橙色背景 */
    --accent-orange-medium: rgba(255, 123, 23, 0.2);   /* 中等橙色背景 */
    --accent-orange-strong: rgba(255, 123, 23, 0.3);   /* 强橙色背景 */
    
    /* 中性色系 */
    --neutral-white: #FFFFFF;       /* 纯白 */
    --ivory-white: #FFFFF0;         /* 象牙白 */
    --neutral-light-gray: #F8FAFC;  /* 浅灰，用于背景 */
    --neutral-gray: #E2E8F0;        /* 中灰，用于边框 */
    --neutral-medium-gray: #64748B; /* 中灰，用于次要文字 */
    --neutral-dark-gray: #334155;   /* 深灰，用于主要文字 */
    --neutral-black: #0F172A;       /* 近黑，用于重要文字 */
    
    /* 功能色 */
    --success-green: #10B981;        /* 成功状态 */
    --warning-yellow: #F59E0B;      /* 警告状态 */
    --error-red: #EF4444;           /* 错误状态 */
    --info-blue: #3B82F6;           /* 信息状态 */
}

/* ===== 全局色彩应用 ===== */

/* 背景色 */
body {
    background-color: var(--neutral-light-gray);
    color: var(--neutral-dark-gray);
    background-image: 
        linear-gradient(45deg, var(--accent-orange-subtle) 25%, transparent 25%),
        linear-gradient(-45deg, var(--accent-orange-subtle) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, var(--accent-orange-subtle) 75%),
        linear-gradient(-45deg, transparent 75%, var(--accent-orange-subtle) 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
}

/* 条纹装饰元素 */
.striped-pattern {
    background-image: 
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 10px,
            var(--accent-orange-subtle) 10px,
            var(--accent-orange-subtle) 20px
        );
}

.striped-pattern-strong {
    background-image: 
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 10px,
            var(--accent-orange-medium) 10px,
            var(--accent-orange-medium) 20px
        );
}

.striped-pattern-vertical {
    background-image: 
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 10px,
            var(--accent-orange-subtle) 10px,
            var(--accent-orange-subtle) 20px
        );
}

/* 主色调应用 */
.bg-primary {
    background-color: var(--primary-blue) !important;
}

.bg-primary-dark {
    background-color: var(--primary-blue-dark) !important;
}

.bg-primary-darker {
    background-color: var(--primary-blue-darker) !important;
}

/* 辅助色应用（增强占比） */
.bg-accent {
    background-color: var(--accent-orange) !important;
}

.bg-accent-light {
    background-color: var(--accent-orange-light) !important;
}

.bg-accent-dark {
    background-color: var(--accent-orange-dark) !important;
}

.bg-accent-subtle {
    background-color: var(--accent-orange-subtle) !important;
}

.bg-accent-medium {
    background-color: var(--accent-orange-medium) !important;
}

.bg-accent-strong {
    background-color: var(--accent-orange-strong) !important;
}

/* 中性色应用 */
.bg-white {
    background-color: var(--neutral-white) !important;
}

.bg-light-gray {
    background-color: var(--neutral-light-gray) !important;
}

.bg-gray {
    background-color: var(--neutral-gray) !important;
}

/* ===== 导航栏样式 ===== */

.navbar {
    background-color: var(--neutral-white) !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid var(--neutral-gray);
}

.navbar-brand {
    font-weight: 700;
    color: var(--primary-blue) !important;
    font-size: 1.5rem;
}

.navbar-nav .nav-link {
    color: var(--primary-blue) !important;
    font-weight: 500;
    transition: all 0.3s ease;
    border-radius: 6px;
    padding: 8px 12px;
    margin: 0 4px;
}

.navbar-nav .nav-link:hover {
    background-color: var(--accent-orange-subtle);
    color: var(--primary-blue) !important;
}

.navbar-nav .nav-link.active {
    background-color: var(--accent-orange);
    color: var(--neutral-white) !important;
}

/* 下拉菜单 */
.dropdown-menu {
    background: 
        linear-gradient(135deg, #67cdee 0%, #4fa8d0 100%),
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 20px,
            rgba(255, 125, 0, 0.05) 20px,
            rgba(255, 125, 0, 0.05) 40px
        ),
        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    border: 1px solid var(--neutral-gray);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    color: var(--ivory-white);
}

.dropdown-item {
    color: var(--ivory-white);
    padding: 10px 16px;
    transition: all 0.2s ease;
}

.dropdown-item:hover {
    background-color: var(--accent-orange);
    color: var(--neutral-white);
}

/* ===== 按钮样式 ===== */

/* 主按钮 */
.btn-primary {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
    color: var(--neutral-white);
    font-weight: 600; /* 增加字重以提高对比度 */
    border-radius: 6px;
    padding: 10px 20px;
    transition: all 0.3s ease;
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.1); /* 添加轻微文字阴影提高可读性 */
}

.btn-primary:hover {
    background-color: var(--primary-blue-light);
    border-color: var(--primary-blue-light);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(37, 99, 235, 0.3);
}

.btn-primary:active {
    background-color: var(--primary-blue-dark);
    border-color: var(--primary-blue-dark);
}

.btn-primary:focus {
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.3);
}

.btn-primary:disabled {
    background-color: var(--neutral-gray);
    border-color: var(--neutral-gray);
    color: var(--neutral-medium-gray);
    text-shadow: none;
}

/* 辅助按钮 */
.btn-accent {
    background-color: var(--accent-orange);
    border-color: var(--accent-orange);
    color: var(--neutral-white);
    font-weight: 600; /* 增加字重以提高对比度 */
    border-radius: 6px;
    padding: 10px 20px;
    transition: all 0.3s ease;
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.1); /* 添加轻微文字阴影提高可读性 */
}

.btn-accent:hover {
    background-color: var(--accent-orange-light);
    border-color: var(--accent-orange-light);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(255, 125, 0, 0.3);
}

.btn-accent:active {
    background-color: var(--accent-orange-dark);
    border-color: var(--accent-orange-dark);
}

.btn-accent:focus {
    box-shadow: 0 0 0 3px rgba(255, 125, 0, 0.3);
}

/* 轮廓按钮 */
.btn-outline-primary {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
    font-weight: 600; /* 增加字重以提高对比度 */
    border-radius: 6px;
    padding: 10px 20px;
    transition: all 0.3s ease;
}

.btn-outline-primary:hover {
    background-color: var(--primary-blue);
    color: var(--neutral-white);
    transform: translateY(-1px);
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.1); /* 添加轻微文字阴影提高可读性 */
}

.btn-outline-accent {
    border-color: var(--accent-orange);
    color: var(--accent-orange);
    font-weight: 600; /* 增加字重以提高对比度 */
    border-radius: 6px;
    padding: 10px 20px;
    transition: all 0.3s ease;
}

.btn-outline-accent:hover {
    background-color: var(--accent-orange);
    color: var(--neutral-white);
    transform: translateY(-1px);
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.1); /* 添加轻微文字阴影提高可读性 */
}

/* 高对比度模式下的按钮增强 */
@media (prefers-contrast: high) {
    .btn-primary,
    .btn-accent {
        border-width: 2px;
        font-weight: 700;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    }
    
    .btn-outline-primary,
    .btn-outline-accent {
        border-width: 2px;
        font-weight: 700;
    }
}

/* ===== 卡片组件 ===== */

.card {
    background-color: var(--neutral-white);
    border: 1px solid var(--neutral-gray);
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--accent-orange-subtle), transparent);
    transition: left 0.6s ease;
    z-index: 0;
}

.card:hover::before {
    left: 100%;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(255, 125, 0, 0.15);
    border-left: 4px solid var(--accent-orange);
}

.card-header {
    background-color: var(--primary-blue);
    color: var(--neutral-white);
    border-bottom: 1px solid var(--primary-blue-dark);
    border-radius: 8px 8px 0 0;
    position: relative;
}

.card-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(to right, var(--accent-orange), var(--accent-orange-light));
}

.card-title {
    color: var(--primary-blue);
    font-weight: 600;
    position: relative;
    z-index: 1;
}

.card-text {
    color: var(--neutral-dark-gray);
    position: relative;
    z-index: 1;
}

/* ===== 表单元素 ===== */

.form-control {
    border: 1px solid var(--neutral-gray);
    border-radius: 6px;
    padding: 10px 12px;
    color: var(--neutral-dark-gray);
    background-color: var(--neutral-white);
    transition: all 0.2s ease;
    font-weight: 500; /* 增加字重以提高对比度 */
}

.form-control:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
    outline: none;
    color: var(--neutral-black); /* 聚焦时使用更深的颜色提高对比度 */
}

.form-label {
    color: var(--neutral-dark-gray);
    font-weight: 600; /* 增加字重以提高对比度 */
    margin-bottom: 8px;
}

.form-select {
    border: 1px solid var(--neutral-gray);
    border-radius: 6px;
    padding: 10px 12px;
    color: var(--neutral-dark-gray);
    background-color: var(--neutral-white);
    transition: all 0.2s ease;
    font-weight: 500; /* 增加字重以提高对比度 */
}

.form-select:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
    outline: none;
    color: var(--neutral-black); /* 聚焦时使用更深的颜色提高对比度 */
}

/* 占位符文字样式 */
.form-control::placeholder {
    color: var(--neutral-medium-gray);
    font-weight: 400;
    opacity: 0.8;
}

/* 高对比度模式下的表单元素增强 */
@media (prefers-contrast: high) {
    .form-control,
    .form-select {
        border-width: 2px;
        font-weight: 600;
    }
    
    .form-control:focus,
    .form-select:focus {
        border-width: 3px;
        font-weight: 700;
    }
    
    .form-label {
        font-weight: 700;
    }
    
    .form-control::placeholder {
        font-weight: 500;
        opacity: 1;
    }
}

/* ===== Hero 区域 ===== */

.hero-section {
    background: 
        linear-gradient(135deg, #0099cc 0%, #005d7f 100%),
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 20px,
            rgba(255, 125, 0, 0.08) 20px,
            rgba(255, 125, 0, 0.08) 40px
        );
    color: var(--ivory-white);
    padding: 80px 0;
    border-radius: 0 0 20px 20px;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="wave" width="100" height="20" patternUnits="userSpaceOnUse"><path d="M 0 10 Q 25 0, 50 10 T 100 10" fill="none" stroke="rgba(255,255,255,0.3)" stroke-width="2"/></pattern></defs><rect width="100" height="100" fill="url(%23wave)"/></svg>'),
        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.6;
    background-size: 100% 20px, 10px 10px;
    background-position: 0 0, 0 0;
    mask-image: linear-gradient(to right, transparent 0%, black 100%);
    -webkit-mask-image: linear-gradient(to right, transparent 0%, black 100%);
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(to right, var(--accent-orange), var(--accent-orange-light), var(--accent-orange));
}

/* 水波纹装饰 */
.hero-section .water-ripple {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,240,0.425)" d="M0,192L48,181.3C96,171,192,149,288,133.3C384,117,480,107,576,133.3C672,160,768,224,864,229.3C960,235,1056,181,1152,165.3C1248,149,1344,171,1392,181.3L1440,192L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    opacity: 0.8;
    animation: ripple 20s linear infinite;
    z-index: 5; /* 置于图层最上层 */
    /* 从右至左的透明度渐变 */
    mask-image: linear-gradient(to left, black 0%, transparent 100%);
    -webkit-mask-image: linear-gradient(to left, black 0%, transparent 100%);
}

/* 第一个水波纹 - 132%高度 */
.hero-section .water-ripple-1 {
    height: 396px; /* 300px * 132% */
    z-index: 4;
    animation-duration: 25s;
    opacity: 0.6;
}

/* 第二个水波纹 - 110%高度 */
.hero-section .water-ripple-2 {
    height: 330px; /* 300px * 110% */
    z-index: 5;
    animation-duration: 20s;
    opacity: 0.7;
}

/* 第三个水波纹 - 90%高度 */
.hero-section .water-ripple-3 {
    height: 270px; /* 300px * 90% */
    z-index: 6;
    animation-duration: 15s;
    opacity: 0.5;
}

/* 第四个水波纹 - 70%高度 */
.hero-section .water-ripple-4 {
    height: 210px; /* 300px * 70% */
    z-index: 7;
    animation-duration: 10s;
    opacity: 0.4;
}

@keyframes ripple {
    0% {
        background-position: 0 0;
    }
    100% {
        background-position: 1440px 0;
    }
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(to right, var(--accent-orange), var(--accent-orange-light), var(--accent-orange));
}

.hero-content {
    position: relative;
    z-index: 1;
    transform: translateY(8%);
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--ivory-white);
    position: relative;
    display: inline-block;
}

.hero-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--accent-orange);
    border-radius: 2px;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 32px;
    color: rgba(255, 255, 240, 0.9);
    position: relative;
}

.hero-subtitle::before {
    content: '';
    position: absolute;
    left: -20px;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background-color: var(--accent-orange);
    border-radius: 50%;
}

/* ===== 页脚样式 ===== */

.footer {
    background: 
        linear-gradient(to bottom, var(--primary-blue-darker), var(--primary-blue)),
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 20px,
            rgba(255, 125, 0, 0.03) 20px,
            rgba(255, 125, 0, 0.03) 40px
        );
    color: var(--neutral-white);
    padding: 60px 0 30px;
    border-radius: 20px 20px 0 0;
    margin-top: 80px;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(to right, var(--accent-orange), var(--accent-orange-light), var(--accent-orange));
}

.footer h5 {
    color: var(--neutral-white);
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--accent-orange);
    position: relative;
}

.footer h5::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--accent-orange-light);
}

.footer p, .footer a {
    color: rgba(255, 255, 255, 0.8);
    transition: color 0.3s ease;
}

.footer a:hover {
    color: var(--accent-orange);
}

.social-links a {
    display: inline-block;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    text-align: center;
    line-height: 40px;
    margin-right: 10px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.social-links a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--accent-orange);
    transform: scale(0);
    border-radius: 50%;
    transition: transform 0.3s ease;
    z-index: 0;
}

.social-links a:hover::before {
    transform: scale(1);
}

.social-links a:hover {
    transform: translateY(-3px);
    color: var(--neutral-white);
}

.social-links a i,
.social-links a span {
    position: relative;
    z-index: 1;
}

/* ===== 内容区块 ===== */

.content-section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

.section-title h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #000000;
    margin-bottom: 16px;
}

.section-title p {
    font-size: 1.125rem;
    color: var(--neutral-medium-gray);
    max-width: 700px;
    margin: 0 auto;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(to right, var(--primary-blue), var(--accent-orange));
    border-radius: 2px;
}

/* ===== 功能特色卡片 ===== */

.feature-card {
    text-align: center;
    padding: 40px 20px;
    border-radius: 12px;
    background-color: var(--neutral-white);
    border: 1px solid var(--neutral-gray);
    transition: all 0.3s ease;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(to right, var(--accent-orange), var(--accent-orange-light));
    transform: scaleX(0);
    transition: transform 0.3s ease;
    transform-origin: left;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 10px,
            var(--accent-orange-subtle) 10px,
            var(--accent-orange-subtle) 20px
        );
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 0;
}

.feature-card:hover::after {
    opacity: 0.5;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(255, 125, 0, 0.15);
    border-color: var(--accent-orange);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: var(--neutral-white);
    font-size: 2rem;
    position: relative;
    z-index: 1;
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    background: linear-gradient(135deg, var(--accent-orange), var(--accent-orange-light));
    transform: scale(1.05);
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
    transition: color 0.3s ease;
}

.feature-card:hover .feature-title {
    color: var(--accent-orange);
}

.feature-description {
    color: var(--neutral-medium-gray);
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* ===== 列表样式 ===== */

.list-group {
    border-radius: 8px;
    overflow: hidden;
}

.list-group-item {
    border: 1px solid var(--neutral-gray);
    padding: 16px 20px;
    color: var(--neutral-dark-gray);
    transition: all 0.2s ease;
}

.list-group-item:hover {
    background-color: var(--neutral-light-gray);
    border-left: 4px solid var(--accent-orange);
}

.list-group-item.active {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
    color: var(--neutral-white);
}

/* ===== 表格样式 ===== */

.table {
    background-color: var(--neutral-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.table thead th {
    background-color: var(--primary-blue);
    color: var(--neutral-white);
    font-weight: 700; /* 增加字重以提高对比度 */
    border: none;
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.1); /* 添加轻微文字阴影提高可读性 */
}

.table tbody tr {
    transition: all 0.2s ease;
}

.table tbody tr:hover {
    background-color: var(--neutral-light-gray);
}

.table td {
    color: var(--neutral-dark-gray);
    border-top: 1px solid var(--neutral-gray);
    font-weight: 500; /* 增加字重以提高对比度 */
}

/* 高对比度模式下的表格增强 */
@media (prefers-contrast: high) {
    .table thead th {
        font-weight: 700;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    }
    
    .table td {
        font-weight: 600;
        color: var(--neutral-black);
    }
    
    .table tbody tr:hover {
        background-color: var(--neutral-gray);
    }
}

/* ===== 标签页样式 ===== */

.nav-tabs {
    border-bottom: 2px solid var(--neutral-gray);
}

.nav-tabs .nav-link {
    color: var(--neutral-medium-gray);
    border: none;
    border-bottom: 3px solid transparent;
    border-radius: 0;
    padding: 12px 20px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.nav-tabs .nav-link:hover {
    color: var(--primary-blue);
    border-bottom-color: var(--primary-blue-light);
}

.nav-tabs .nav-link.active {
    color: var(--primary-blue);
    background-color: transparent;
    border-bottom-color: var(--accent-orange);
}

/* ===== 分页样式 ===== */

.pagination {
    margin-bottom: 0;
}

.page-link {
    color: var(--primary-blue);
    border: 1px solid var(--neutral-gray);
    padding: 8px 16px;
    margin: 0 2px;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.page-link:hover {
    background-color: var(--primary-blue);
    color: var(--neutral-white);
    border-color: var(--primary-blue);
}

.page-item.active .page-link {
    background-color: var(--accent-orange);
    border-color: var(--accent-orange);
}

/* ===== 面包屑导航 ===== */

.breadcrumb {
    background-color: transparent;
    padding: 0;
    margin-bottom: 20px;
}

.breadcrumb-item {
    color: var(--neutral-medium-gray);
}

.breadcrumb-item a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: color 0.2s ease;
}

.breadcrumb-item a:hover {
    color: var(--accent-orange);
}

.breadcrumb-item.active {
    color: var(--neutral-dark-gray);
}

.breadcrumb-item + .breadcrumb-item::before {
    content: ">";
    color: var(--neutral-medium-gray);
}

/* ===== 徽章样式 ===== */

.badge {
    padding: 6px 12px;
    border-radius: 12px;
    font-weight: 500;
}

.badge-primary {
    background-color: var(--primary-blue);
    color: var(--neutral-white);
}

.badge-accent {
    background-color: var(--accent-orange);
    color: var(--neutral-white);
}

.badge-light {
    background-color: var(--neutral-light-gray);
    color: var(--neutral-dark-gray);
}

/* ===== 提示框样式 ===== */

.alert {
    border-radius: 8px;
    border: none;
    padding: 16px 20px;
}

.alert-primary {
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--primary-blue);
}

.alert-accent {
    background-color: rgba(255, 125, 0, 0.1);
    color: var(--accent-orange-dark);
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success-green);
}

.alert-warning {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--warning-yellow);
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--error-red);
}

.alert-info {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--info-blue);
}

/* ===== 进度条样式 ===== */

.progress {
    height: 8px;
    background-color: var(--neutral-gray);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar {
    background: linear-gradient(to right, var(--primary-blue), var(--primary-blue-light));
    border-radius: 4px;
}

.progress-bar-accent {
    background: linear-gradient(to right, var(--accent-orange), var(--accent-orange-light));
}

/* ===== 模态框样式 ===== */

.modal-content {
    border-radius: 12px;
    border: none;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.modal-header {
    background-color: var(--primary-blue);
    color: var(--neutral-white);
    border-radius: 12px 12px 0 0;
    border: none;
}

.modal-title {
    color: var(--neutral-white);
    font-weight: 600;
}

.modal-body {
    color: var(--neutral-dark-gray);
}

.modal-footer {
    border-top: 1px solid var(--neutral-gray);
}

/* ===== 工具提示样式 ===== */

.tooltip {
    font-size: 0.875rem;
}

.tooltip-inner {
    background-color: var(--primary-blue-darker);
    color: var(--neutral-white);
    border-radius: 6px;
    padding: 8px 12px;
}

/* ===== 滚动条样式 ===== */

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--neutral-light-gray);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-blue);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-blue-light);
}

/* ===== 响应式调整 ===== */

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title h2 {
        font-size: 2rem;
    }
    
    .navbar-nav .nav-link {
        margin: 4px 0;
    }
    
    .feature-card {
        margin-bottom: 20px;
    }
}

/* ===== 可访问性增强 ===== */

/* 焦点样式 */
.btn:focus,
.form-control:focus,
.form-select:focus,
.nav-link:focus,
.page-link:focus {
    outline: 2px solid var(--accent-orange);
    outline-offset: 2px;
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    .btn-primary {
        border-width: 2px;
    }
    
    .card {
        border-width: 2px;
    }
    
    .form-control {
        border-width: 2px;
    }
}

/* 减少动画偏好支持 */
@media (prefers-reduced-motion: reduce) {
    .btn,
    .card,
    .feature-card,
    .nav-link,
    .dropdown-item,
    .social-links a {
        transition: none;
    }
}

/* ===== 文字颜色定义 ===== */

.text-primary {
    color: var(--primary-blue) !important;
}

.text-accent {
    color: var(--accent-orange) !important;
}

.text-dark {
    color: var(--neutral-dark-gray) !important;
}

.text-muted {
    color: var(--neutral-medium-gray) !important;
}

.text-light {
    color: var(--neutral-light-gray) !important;
}

.text-white {
    color: var(--neutral-white) !important;
}

/* ===== 文字对比度增强 ===== */

/* 确保所有文字元素符合WCAG 2.1 AA级标准 */
/* 正常文本对比度不低于4.5:1，大文本不低于3:1 */

/* 主色调背景上的文字 */
.bg-primary .text-white,
.bg-primary-dark .text-white,
.bg-primary-darker .text-white {
    color: var(--neutral-white) !important;
    font-weight: 500; /* 增加字重以提高可读性 */
}

/* 橙色背景上的文字 */
.bg-accent .text-white,
.bg-accent-light .text-white,
.bg-accent-dark .text-white {
    color: var(--neutral-white) !important;
    font-weight: 500; /* 增加字重以提高可读性 */
}

/* 浅色背景上的深色文字 */
.bg-white .text-dark,
.bg-light-gray .text-dark {
    color: var(--neutral-dark-gray) !important;
}

/* 中性灰色背景上的文字 */
.bg-gray .text-dark {
    color: var(--neutral-dark-gray) !important;
    font-weight: 600; /* 增加字重以提高对比度 */
}

/* 橙色淡背景上的文字 */
.bg-accent-subtle .text-dark,
.bg-accent-medium .text-dark {
    color: var(--neutral-dark-gray) !important;
    font-weight: 600; /* 增加字重以提高对比度 */
}

/* 强调文字样式 */
.text-emphasis {
    color: var(--accent-orange) !important;
    font-weight: 600;
}

/* 次要文字样式 */
.text-secondary {
    color: var(--neutral-medium-gray) !important;
    font-weight: 400;
}

/* 高对比度模式下的文字增强 */
@media (prefers-contrast: high) {
    .bg-primary .text-white,
    .bg-primary-dark .text-white,
    .bg-primary-darker .text-white {
        font-weight: 700;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    }
    
    .bg-accent .text-white,
    .bg-accent-light .text-white,
    .bg-accent-dark .text-white {
        font-weight: 700;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    }
    
    .text-dark {
        font-weight: 600;
    }
    
    .text-muted {
        color: var(--neutral-dark-gray) !important;
        font-weight: 500;
    }
}

/* ===== 边框颜色定义 ===== */

.border-primary {
    border-color: var(--primary-blue) !important;
}

.border-accent {
    border-color: var(--accent-orange) !important;
}

.border-light {
    border-color: var(--neutral-light-gray) !important;
}

.border-gray {
    border-color: var(--neutral-gray) !important;
}

/* ===== 导航栏样式 ===== */
.navbar {
    background-color: var(--ivory-white) !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 8px 0;
}

.navbar-brand {
    font-weight: 700;
    color: var(--primary-blue) !important;
    font-size: 1.5rem;
}

.navbar-logo {
    height: 2.5rem;
    width: auto;
    vertical-align: middle;
    object-fit: contain;
    transition: all 0.3s ease;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
    transform: scale(1.4);
    transform-origin: center;
}

.navbar-logo:hover {
    transform: scale(1.45);
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.15));
}

/* ===== 服务区域 ===== */
.services-section {
    color: var(--neutral-black);
}

.services-section .section-title {
    color: var(--neutral-black);
}

.services-section .section-title h2 {
    color: var(--neutral-black);
}

.services-section .section-title p {
    color: var(--neutral-dark-gray);
}

/* ===== 解决方案区域 ===== */
.solutions-section {
    color: var(--neutral-black);
}

.solutions-section .section-title {
    color: var(--neutral-black);
}

.solutions-section .section-title h2 {
    color: var(--neutral-black);
}

.solutions-section .section-title p {
    color: var(--neutral-dark-gray);
}

/* ===== 链接样式 ===== */

a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--accent-orange);
}

a:focus {
    outline: 2px solid var(--accent-orange);
    outline-offset: 2px;
}