/* 全局重置 */
* {
    margin: 0;
    padding: 0;
    /* box-sizing: border-box; */
}

/* 性能优化 */
html {
    scroll-behavior: smooth;
    /* 确保fixed定位正常工作 */
    position: relative;
    overflow-x: hidden;
}

body {
    /* 启用GPU加速 */
    transform: translateZ(0);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    /* 优化滚动性能 */
    overflow-x: hidden;
    overscroll-behavior: none;
    /* 确保fixed定位容器 */
    position: relative;
    margin: 0;
    padding: 0;
}

/* CSS变量定义 */
:root {
    --primary-color: #6d28d9;
    --primary-light: #7c3aed;
    --primary-dark: #5b21b6;
    --accent-color: #4338ca;
    --text-primary: #ffffff;
    --text-secondary: #e2e8f0;
    --text-muted: #94a3b8;
    --bg-dark: #000000;
    --bg-overlay: rgba(0, 0, 0, 0.7);
    --border-color: rgba(255, 255, 255, 0.1);
}

/* 浅色主题变量 */
body.light-theme {
    --text-primary: #1f2937;
    --text-secondary: #4b5563;
    --text-muted: #6b7280;
    --bg-dark: #ffffff;
    --bg-overlay: rgba(255, 255, 255, 0.9);
    --border-color: rgba(0, 0, 0, 0.1);
}

/* 浅色主题样式覆盖 */
body.light-theme .hero {
    background: linear-gradient(135deg, #ffffff 0%, #f3f4f6 50%, #e5e7eb 100%);
}

body.light-theme .hero::before {
    background:
        radial-gradient(circle at 20% 50%, rgba(109, 40, 217, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(124, 58, 237, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(67, 56, 202, 0.06) 0%, transparent 50%);
}

body.light-theme .features {
    background: #f9fafb;
}

body.light-theme .stats {
    background: linear-gradient(135deg, rgba(109, 40, 217, 0.05) 0%, rgba(243, 244, 246, 0.8) 100%);
}

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

body.light-theme .footer {
    background: #f9fafb;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

body.light-theme .feature-card {
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

body.light-theme .feature-card:hover {
    box-shadow: 0 20px 40px rgba(109, 40, 217, 0.1);
}

body.light-theme .navbar {
    background: rgba(255, 255, 255, 0.3);
}

body.light-theme .navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
}

body.light-theme .support-section {
    background: #f9fafb;
}

/* 基础样式 */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    overflow-x: hidden;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    /* 确保fixed定位正常工作 */
    position: static !important;
    transform: none !important;
    perspective: none !important;
    contain: none !important;
}

/* 主题切换遮罩动画 */
.theme-transition-overlay {
    position: fixed;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle,
            rgba(109, 40, 217, 0.4) 0%,
            rgba(124, 58, 237, 0.3) 20%,
            rgba(67, 56, 202, 0.25) 40%,
            rgba(139, 92, 246, 0.2) 60%,
            rgba(0, 0, 0, 0.6) 80%,
            rgba(0, 0, 0, 0.8) 100%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    z-index: 9999;
    pointer-events: none;
    transition: all 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    opacity: 0;
}

/* 浅色主题的遮罩效果 */
body.light-theme .theme-transition-overlay {
    background: radial-gradient(circle,
            rgba(255, 255, 255, 0.6) 0%,
            rgba(109, 40, 217, 0.05) 20%,
            rgba(124, 58, 237, 0.04) 40%,
            rgba(67, 56, 202, 0.03) 60%,
            rgba(243, 244, 246, 0.7) 80%,
            rgba(255, 255, 255, 0.9) 100%);
}

.theme-transition-overlay.active {
    width: 300vw;
    height: 300vh;
    opacity: 1;
}

/* 主题切换粒子效果 */
.theme-particle {
    position: fixed;
    width: 4px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 50%;
    pointer-events: none;
    z-index: 10000;
    opacity: 0;
    transition: transform 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.theme-particle.animate {
    opacity: 1;
    animation: themeParticleGlow 1.2s ease-out forwards;
}

@keyframes themeParticleGlow {
    0% {
        opacity: 0.8;
        transform: scale(1) rotate(0deg);
        box-shadow: 0 0 5px var(--primary-color);
    }

    30% {
        opacity: 0.6;
        transform: scale(1.5) rotate(120deg);
        box-shadow: 0 0 10px var(--primary-color), 0 0 20px var(--primary-light);
    }

    70% {
        opacity: 0.3;
        transform: scale(1.2) rotate(240deg);
        box-shadow: 0 0 8px var(--primary-color), 0 0 15px var(--primary-light);
    }

    100% {
        opacity: 0;
        transform: scale(0.8) rotate(360deg);
        box-shadow: 0 0 3px var(--primary-color);
    }
}

/* 主题切换波纹效果 */
.theme-ripple {
    position: fixed;
    border: 1px solid rgba(109, 40, 217, 0.3);
    border-radius: 50%;
    pointer-events: none;
    z-index: 10001;
    animation: themeRipple 1.5s ease-out forwards;
}

@keyframes themeRipple {
    0% {
        width: 0;
        height: 0;
        opacity: 0.6;
        transform: translate(-50%, -50%);
    }

    100% {
        width: 150px;
        height: 150px;
        opacity: 0;
        transform: translate(-50%, -50%);
    }
}

/* 导航栏样式（强化固定版） */
.navbar {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    z-index: 999999 !important;
    /* 超高z-index确保置顶 */
    padding: 12px 40px;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(20px);
    transition: background-color 0.3s ease, padding 0.3s ease;
    /* GPU加速 */
    will-change: background-color, padding;
    transform: translateZ(0);
    /* 确保固定定位 */
    box-sizing: border-box;
    /* 强制固定 */
    contain: layout style paint;
    isolation: isolate;
}

.navbar.scrolled {
    background: rgba(0, 0, 0, 0.95);
    padding: 8px 40px;
    /* 从15px减少到8px */
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.8rem;
    font-weight: 900;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-img {
    width: 35px;
    height: 42px;
    box-shadow: 0 0 1px rgba(109, 40, 217, 0.3);
}

.nav-links {
    display: flex;
    gap: 40px;
    list-style: none;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: var(--text-primary);
}

.nav-links a:hover::after {
    width: 100%;
}

/* 主题切换按钮 */
.theme-toggle {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    padding: 8px 16px;
    cursor: pointer;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.theme-toggle:hover {
    background: rgba(109, 40, 217, 0.2);
    border-color: var(--primary-color);
    color: var(--text-primary);
}

/* 英雄区域 */
.hero {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, #000000 0%, #0f0f23 50%, #1a1a2e 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(109, 40, 217, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(124, 58, 237, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(67, 56, 202, 0.15) 0%, transparent 50%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 0.7;
    }

    50% {
        opacity: 1;
    }
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 1000px;
    padding: 0 40px;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 20px;
    font-weight: 500;
}

.hero-title {
    font-size: 5.5rem;
    font-weight: 900;
    line-height: 0.9;
    margin-bottom: 30px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 80px rgba(109, 40, 217, 0.5);
}

.hero-description {
    font-size: 1.4rem;
    color: var(--text-secondary);
    margin-bottom: 50px;
    line-height: 1.6;
    font-weight: 300;
}

.hero-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* 按钮样式 */
.btn {
    padding: 16px 32px;
    border: none;
    border-radius: 0;
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--text-primary);
    border: 2px solid var(--primary-color);
}

.btn-primary::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;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--text-primary);
}

.btn-secondary:hover {
    background: var(--text-primary);
    color: var(--bg-dark);
}

/* 滚动指示器 */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.scroll-arrow {
    width: 2px;
    height: 40px;
    background: linear-gradient(to bottom, transparent, var(--primary-color), transparent);
    margin-top: 10px;
    animation: extend 2s ease-in-out infinite;
}

@keyframes extend {
    0% {
        height: 20px;
        opacity: 0.3;
    }

    50% {
        height: 50px;
        opacity: 1;
        transform: translateY(-5px);
    }

    100% {
        height: 20px;
        opacity: 0.3;
    }
}

/* 特性区域 */
.features {
    padding: 120px 0;
    background: var(--bg-dark);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 0;
    padding: 40px 30px;
    text-align: center;
    transition: transform 0.3s ease, background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
    /* GPU加速 */
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.feature-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(109, 40, 217, 0.2);
}

/* M1模块特殊样式 */
.feature-card[data-module="M1"] {
    border-color: rgba(34, 197, 94, 0.3);
    cursor: pointer;
}

.feature-card[data-module="M1"]:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: rgba(34, 197, 94, 0.5);
    background: rgba(34, 197, 94, 0.05);
    box-shadow: 0 20px 50px rgba(34, 197, 94, 0.2);
}

.feature-card[data-module="M1"]::before {
    background: linear-gradient(90deg, #22c55e, #16a34a);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.feature-desc {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* 统计区域 */
.stats {
    padding: 100px 0;
    background: linear-gradient(135deg, rgba(109, 40, 217, 0.1) 0%, rgba(0, 0, 0, 0.8) 100%);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat-item {
    padding: 30px 20px;
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--primary-light);
    margin-bottom: 10px;
    text-shadow: 0 0 30px rgba(109, 40, 217, 0.5);
}

.stat-label {
    font-size: 1.1rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* CTA区域 */
.cta {
    padding: 120px 0;
    background: var(--bg-dark);
    text-align: center;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 30px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.cta-description {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 50px;
    line-height: 1.6;
}

/* 粒子效果背景（优化版） */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    /* GPU加速 */
    transform: translateZ(0);
    will-change: auto;
}

.particle {
    position: absolute;
    background: var(--primary-color);
    border-radius: 50%;
    opacity: 0.08;
    /* 降低不透明度减少渲染负载 */
    animation: float linear infinite;
    /* GPU加速 */
    will-change: transform, opacity;
    backface-visibility: hidden;
    transform: translateZ(0);
}

@keyframes float {
    0% {
        transform: translateY(100vh) rotate(0deg) translateZ(0);
        opacity: 0;
    }

    10% {
        opacity: 0.08;
    }

    90% {
        opacity: 0.08;
    }

    100% {
        transform: translateY(-100px) rotate(360deg) translateZ(0);
        opacity: 0;
    }
}

/* 页脚 */
.footer {
    background: var(--bg-dark);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    color: var(--text-primary);
    margin-bottom: 20px;
    font-size: 1.1rem;
    font-weight: 600;
}

.footer-section a {
    display: block;
    color: var(--text-muted);
    text-decoration: none;
    margin-bottom: 10px;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* 模块页面样式 */
.page-header {
    padding: 150px 0 80px;
    text-align: center;
    background: linear-gradient(135deg, #000000 0%, #0f0f23 50%, #1a1a2e 100%);
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(109, 40, 217, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(124, 58, 237, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(67, 56, 202, 0.15) 0%, transparent 50%);
    animation: pulse 8s ease-in-out infinite;
}

.page-title {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
    z-index: 1;
}

.page-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* 模块列表样式 */
.modules-list {
    padding: 80px 0;
    background: var(--bg-dark);
}

.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.module-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.module-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: var(--primary-color);
    background: rgba(109, 40, 217, 0.05);
}

.module-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.module-number {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 3rem;
    font-weight: 900;
    opacity: 0.1;
    color: var(--primary-color);
}

.module-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.module-desc {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.module-topics {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.topic-tag {
    background: rgba(109, 40, 217, 0.1);
    border: 1px solid rgba(109, 40, 217, 0.2);
    color: var(--primary-light);
    padding: 5px 10px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 500;
}

.module-status {
    font-size: 0.9rem;
    font-weight: 500;
}

.module-status.completed {
    color: #10b981;
}

.module-status.pending {
    color: #f59e0b;
}

/* 鼠标跟随高亮效果（优化版） */
.mouse-light {
    position: fixed;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transition: opacity 0.2s ease;
    /* 使用transform而不是left/top */
    left: 0;
    top: 0;
    /* 开启GPU加速 */
    will-change: transform, opacity;
    transform: translate(-50%, -50%) translateZ(0);
    backface-visibility: hidden;
}

/* 经典光晕 */
.mouse-light.mode-glow {
    background: radial-gradient(circle, rgba(109, 40, 217, 0.15) 0%, rgba(124, 58, 237, 0.08) 30%, transparent 70%);
    mix-blend-mode: screen;
}

/* 浅色主题的鼠标光晕效果 */
body.light-theme .mouse-light.mode-glow {
    background: radial-gradient(circle,
            rgba(109, 40, 217, 0.08) 0%,
            rgba(124, 58, 237, 0.04) 40%,
            rgba(67, 56, 202, 0.02) 60%,
            transparent 90%);
    mix-blend-mode: multiply;
    box-shadow: 0 0 40px rgba(109, 40, 217, 0.08);
}

/* 浅色主题下的增强效果 */
body.light-theme .mouse-light.active {
    opacity: 1;
}

.mouse-light.active {
    opacity: 1;
}

.mouse-light.hidden {
    opacity: 0;
}

/* 赞助支持区域 */
.support-section {
    padding: 80px 0;
    background: var(--bg-dark);
    text-align: center;
}

.support-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.support-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 50px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.qr-codes {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

.qr-code-item {
    text-align: center;
    transition: transform 0.3s ease;
}

.qr-code-item:hover {
    transform: translateY(-5px);
}

.qr-code-img {
    width: 160px;
    height: 160px;
    border-radius: 16px;
    border: 2px solid rgba(109, 40, 217, 0.2);
    padding: 8px;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 10px 30px rgba(109, 40, 217, 0.1);
    transition: all 0.3s ease;
    object-fit: cover;
}

.qr-code-img:hover {
    border-color: var(--primary-color);
    box-shadow: 0 15px 40px rgba(109, 40, 217, 0.2);
    transform: scale(1.05);
}

.qr-code-label {
    margin-top: 15px;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.support-note {
    margin-top: 40px;
    font-size: 0.95rem;
    color: var(--text-muted);
    font-style: italic;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar {
        padding: 10px 20px;
        /* 移动设备上更小的导航栏高度 */
    }

    .qr-codes {
        gap: 40px;
    }

    .qr-code-img {
        width: 140px;
        height: 140px;
    }

    .support-title {
        font-size: 2rem;
    }

    .hero-title {
        font-size: 3.5rem;
    }

    .nav-links {
        gap: 20px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* 性能优化：减少动画的设备 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .particle {
        animation: none;
        opacity: 0.02;
    }

    .mouse-light {
        display: none;
    }
}

/* 低性能设备优化 */
@media (max-width: 768px) and (max-height: 1024px) {
    .particles {
        display: none;
        /* 移动设备隐藏粒子效果 */
    }

    .mouse-light {
        display: none;
        /* 移动设备隐藏鼠标效果 */
    }

    .hero::before {
        animation: none;
        /* 禁用背景动画 */
    }
}

/* 模块详情区域样式 */
.modules-detail {
    padding: 80px 0;
    background: linear-gradient(135deg, rgba(109, 40, 217, 0.05) 0%, rgba(0, 0, 0, 0.8) 100%);
    position: relative;
    overflow: hidden;
}

.modules-detail::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 25% 25%, rgba(109, 40, 217, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(124, 58, 237, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.modules-timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.modules-timeline::before {
    content: '';
    position: absolute;
    left: 50px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary-color) 0%, var(--primary-light) 50%, var(--accent-color) 100%);
    opacity: 0.3;
}

.module-item {
    position: relative;
    padding: 30px 0;
    margin: 0 0 0 100px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 30px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
}

.module-item:hover {
    transform: translateX(10px);
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(109, 40, 217, 0.3);
    box-shadow: 0 10px 30px rgba(109, 40, 217, 0.2);
}

.module-item.active {
    background: rgba(109, 40, 217, 0.1);
    border-color: var(--primary-color);
    box-shadow: 0 15px 40px rgba(109, 40, 217, 0.3);
}

.module-number {
    position: absolute;
    left: -80px;
    top: 50%;
    transform: translateY(-50%);
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
    box-shadow: 0 8px 25px rgba(109, 40, 217, 0.4);
    border: 3px solid rgba(255, 255, 255, 0.2);
}

.module-content {
    padding: 30px;
}

.module-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.module-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 20px;
    line-height: 1.6;
}

.module-topics-detail {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.topic-item {
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.topic-item:hover {
    background: rgba(109, 40, 217, 0.1);
    border-color: rgba(109, 40, 217, 0.3);
    transform: translateY(-2px);
}

.topic-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.module-preview {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 15px 0;
}

.preview-tag {
    padding: 6px 12px;
    background: rgba(109, 40, 217, 0.2);
    color: var(--primary-light);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid rgba(109, 40, 217, 0.3);
}

.feature-topics {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 15px;
}

.topic-tag {
    padding: 4px 10px;
    background: rgba(109, 40, 217, 0.15);
    color: var(--primary-light);
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(109, 40, 217, 0.2);
}

.feature-status,
.module-status {
    display: inline-block;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-top: 15px;
}

.module-status.completed {
    background: rgba(34, 197, 94, 0.2);
    color: #22c55e;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.module-status.pending,
.feature-status {
    background: rgba(249, 115, 22, 0.2);
    color: #f97316;
    border: 1px solid rgba(249, 115, 22, 0.3);
}

/* 浅色主题下的模块样式 */
body.light-theme .modules-detail {
    background: linear-gradient(135deg, rgba(109, 40, 217, 0.03) 0%, rgba(243, 244, 246, 0.8) 100%);
}

body.light-theme .module-item {
    background: rgba(255, 255, 255, 0.8);
    border-color: rgba(0, 0, 0, 0.1);
}

body.light-theme .module-item:hover {
    background: rgba(255, 255, 255, 0.95);
    border-color: rgba(109, 40, 217, 0.2);
    box-shadow: 0 10px 30px rgba(109, 40, 217, 0.1);
}

body.light-theme .module-item.active {
    background: rgba(109, 40, 217, 0.05);
    border-color: var(--primary-color);
    box-shadow: 0 15px 40px rgba(109, 40, 217, 0.15);
}

body.light-theme .topic-item {
    background: rgba(0, 0, 0, 0.02);
    border-color: rgba(0, 0, 0, 0.1);
}

body.light-theme .topic-item:hover {
    background: rgba(109, 40, 217, 0.05);
    border-color: rgba(109, 40, 217, 0.2);
}

/* 次要按钮样式 */
.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 12px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(109, 40, 217, 0.3);
}

body.light-theme .btn-secondary {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

body.light-theme .btn-secondary:hover {
    background: var(--primary-color);
    color: white;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .modules-timeline::before {
        left: 30px;
    }

    .module-item {
        margin-left: 60px;
    }

    .module-number {
        left: -45px;
        width: 50px;
        height: 50px;
        font-size: 1rem;
    }

    .module-content {
        padding: 20px;
    }

    .module-title {
        font-size: 1.5rem;
    }

    .module-topics-detail {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .topic-item {
        padding: 15px;
    }
}

/* 页面头部样式 */
.page-header {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, rgba(109, 40, 217, 0.1) 0%, rgba(0, 0, 0, 0.8) 100%);
    position: relative;
}

.breadcrumb {
    margin-bottom: 20px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.breadcrumb a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb a:hover {
    color: var(--primary-light);
}

.breadcrumb span {
    margin: 0 8px;
}

.page-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 15px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 800px;
}

/* 模块头部信息 */
.module-header-info,
.topic-header-info {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-top: 30px;
}

.module-number-large,
.topic-number-large {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    color: white;
    box-shadow: 0 10px 30px rgba(109, 40, 217, 0.3);
    flex-shrink: 0;
}

.topic-icon-large {
    font-size: 2rem;
    margin-right: 15px;
}

.module-meta,
.topic-meta {
    display: flex;
    gap: 20px;
    margin-top: 15px;
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.meta-icon {
    font-size: 1.1rem;
}

/* 模块总览页面样式 */
.modules-overview {
    padding: 60px 0;
    background: var(--bg-dark);
}

.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.module-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 30px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    backdrop-filter: blur(10px);
}

.module-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(109, 40, 217, 0.3);
    box-shadow: 0 15px 40px rgba(109, 40, 217, 0.2);
}

.module-card.completed {
    border-color: rgba(34, 197, 94, 0.3);
}

.module-card.completed:hover {
    border-color: rgba(34, 197, 94, 0.5);
    box-shadow: 0 15px 40px rgba(34, 197, 94, 0.15);
}

.module-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.module-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
}

.status-badge {
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.status-badge.completed {
    background: rgba(34, 197, 94, 0.2);
    color: #22c55e;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.status-badge.pending {
    background: rgba(249, 115, 22, 0.2);
    color: #f97316;
    border: 1px solid rgba(249, 115, 22, 0.3);
}

.module-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.module-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.module-topics {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 20px;
}

.module-topics.preview .topic-item {
    opacity: 0.7;
}

.topic-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.9rem;
}

.topic-icon {
    font-size: 1.1rem;
}

.module-progress {
    margin-top: 20px;
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 8px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border-radius: 3px;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* 学习进度区域 */
.learning-progress {
    padding: 40px 0;
    background: rgba(109, 40, 217, 0.05);
}

.progress-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 30px;
    backdrop-filter: blur(10px);
}

.progress-card h3 {
    color: var(--text-primary);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.progress-bar-large {
    width: 100%;
    height: 12px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 15px;
}

.progress-stats {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
}

.progress-percentage {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1.1rem;
}

/* 主题卡片样式 */
.topics-section {
    padding: 60px 0;
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.topic-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 25px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    backdrop-filter: blur(10px);
}

.topic-card:hover {
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(109, 40, 217, 0.3);
    box-shadow: 0 12px 35px rgba(109, 40, 217, 0.15);
}

.topic-card.completed {
    border-color: rgba(34, 197, 94, 0.3);
}

.topic-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.topic-number {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 700;
    color: white;
}

.topic-status {
    display: flex;
    align-items: center;
    gap: 6px;
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #f97316;
}

.status-indicator.completed {
    background: #22c55e;
}

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

.topic-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
}

.topic-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.topic-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 8px;
    margin-bottom: 20px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.highlight-icon {
    font-size: 0.9rem;
}

.topic-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.reading-time,
.difficulty {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 学习建议区域 */
.learning-tips {
    padding: 60px 0;
    background: rgba(109, 40, 217, 0.03);
}

.tips-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 40px;
    backdrop-filter: blur(10px);
}

.tips-card h3 {
    color: var(--text-primary);
    margin-bottom: 25px;
    font-size: 1.5rem;
    text-align: center;
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.tip-item {
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.tip-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 5px;
}

.tip-content h4 {
    color: var(--text-primary);
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.tip-content p {
    color: var(--text-secondary);
    line-height: 1.5;
    font-size: 0.9rem;
}

/* 导航按钮区域 */
.navigation-buttons {
    padding: 40px 0 60px;
}

.nav-buttons {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

/* 文章内容样式 */
.article-content {
    padding: 60px 0;
}

.article-content .container {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 40px;
    max-width: 1200px;
}

.table-of-contents {
    position: sticky;
    top: 120px;
    height: fit-content;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 25px;
    backdrop-filter: blur(10px);
}

.table-of-contents h3 {
    color: var(--text-primary);
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.toc-list {
    list-style: none;
}

.toc-list li {
    margin-bottom: 8px;
}

.toc-list a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
    display: block;
    padding: 4px 0;
}

.toc-list a:hover {
    color: var(--primary-color);
}

.article-main {
    min-width: 0;
}

.content-section {
    margin-bottom: 50px;
}

.content-section h2 {
    color: var(--text-primary);
    font-size: 2rem;
    margin-bottom: 25px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-color);
}

.content-block {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 1rem;
}

.content-block p {
    margin-bottom: 15px;
}

.content-block ul {
    margin: 15px 0;
    padding-left: 20px;
}

.content-block li {
    margin-bottom: 8px;
}

.highlight-box {
    background: rgba(109, 40, 217, 0.1);
    border: 1px solid rgba(109, 40, 217, 0.3);
    border-radius: 10px;
    padding: 20px;
    margin: 20px 0;
}

.highlight-box h4 {
    color: var(--text-primary);
    margin-bottom: 12px;
}

.formula-box {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 20px;
    margin: 20px 0;
    text-align: center;
}

.formula {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 5px;
    padding: 15px;
    margin: 10px 0;
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    color: var(--primary-light);
}

.formula-explanation {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 10px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .page-title {
        font-size: 2rem;
    }

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

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

    .module-header-info,
    .topic-header-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }

    .module-meta,
    .topic-meta {
        flex-direction: column;
        gap: 10px;
    }

    .nav-buttons {
        flex-direction: column;
    }

    .article-content .container {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .table-of-contents {
        position: static;
        order: -1;
    }

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

/* 模块统计区域 */
.modules-stats {
    padding: 40px 0;
    background: rgba(109, 40, 217, 0.05);
}

.modules-stats .stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    text-align: center;
}

.modules-stats .stat-item {
    padding: 25px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.modules-stats .stat-item:hover {
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(109, 40, 217, 0.3);
}

.modules-stats .stat-number {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--primary-light);
    margin-bottom: 8px;
    text-shadow: 0 0 20px rgba(109, 40, 217, 0.5);
}

.modules-stats .stat-label {
    font-size: 1rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

/* 学习路径指南 */
.learning-path {
    padding: 60px 0;
    background: rgba(109, 40, 217, 0.03);
}

.path-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 40px;
    backdrop-filter: blur(10px);
}

.path-card h3 {
    color: var(--text-primary);
    margin-bottom: 30px;
    font-size: 1.8rem;
    text-align: center;
}

.path-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.path-step {
    display: flex;
    align-items: center;
    gap: 15px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 20px;
    min-width: 200px;
    transition: all 0.3s ease;
}

.path-step:hover {
    transform: translateY(-2px);
    background: rgba(109, 40, 217, 0.1);
    border-color: rgba(109, 40, 217, 0.3);
}

.step-number {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

.step-content h4 {
    color: var(--text-primary);
    margin-bottom: 5px;
    font-size: 1.1rem;
    font-weight: 600;
}

.step-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.4;
    margin: 0;
}

.path-arrow {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: bold;
}

/* 模块统计响应式 */
@media (max-width: 768px) {
    .modules-stats .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .path-steps {
        flex-direction: column;
    }

    .path-arrow {
        transform: rotate(90deg);
    }

    .path-step {
        min-width: 100%;
    }
}