/* ===========================================
   现代极简设计系统 - DNF私服辅助
   =========================================== */

/* CSS 变量定义 */
:root {
    /* 主色调 - 极简配色 */
    --primary-color: #2563eb;      /* 宝石蓝 */
    --secondary-color: #f97316;    /* 橙色点缀 */
    --accent-color: #10b981;       /* 绿色点缀 */
    --text-primary: #1f2937;       /* 深灰文字 */
    --text-secondary: #6b7280;     /* 中灰文字 */
    --text-light: #9ca3af;         /* 浅灰文字 */
    --bg-primary: #ffffff;         /* 纯白背景 */
    --bg-secondary: #f9fafb;       /* 浅灰背景 */
    --bg-dark: #111827;            /* 深色背景 */
    --border-color: #e5e7eb;       /* 边框色 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

/* 全局重置与基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 容器与布局 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    letter-spacing: -0.025em;
}

.section-header p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 按钮系统 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    transform: translateY(0);
}

.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;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #1d4ed8);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    background: linear-gradient(135deg, #1d4ed8, var(--primary-color));
}

.btn-secondary {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}
.article-summary {
    font-size: 1.2rem;
    color: #999;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: #f9f9f9;
    border-radius: 8px;
    border-left: 4px solid #ff3d00;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-logo i {
    margin-right: 0.75rem;
    color: var(--primary-color);
    font-size: 1.75rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-color);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger .bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: 0.3s;
    border-radius: 2px;
}

/* 主页横幅 & 软件介绍 */
.hero-intro {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    overflow: hidden;
}

.hero-intro::before {
    content: '';
    position: absolute;
    top: 15%;
    left: 10%;
    width: 0;
    height: 0;
    border-left: 80px solid transparent;
    border-right: 80px solid transparent;
    border-bottom: 140px solid rgba(37, 99, 235, 0.3);
    animation: triangleRotate 15s ease-in-out infinite;
    z-index: 1;
    filter: drop-shadow(0 0 20px rgba(37, 99, 235, 0.5));
}

.hero-intro::after {
    content: '';
    position: absolute;
    bottom: 20%;
    right: 8%;
    width: 120px;
    height: 120px;
    background: linear-gradient(45deg, rgba(249, 115, 22, 0.25), rgba(147, 51, 234, 0.2));
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
    animation: geometricPulse 18s ease-in-out infinite;
    z-index: 1;
}

/* 光线扫描效果 */
.hero-intro .light-sweep {
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: linear-gradient(to bottom, transparent 20%, rgba(16, 185, 129, 0.8) 40%, rgba(37, 99, 235, 0.6) 60%, transparent 80%);
    animation: lightSweep 25s linear infinite;
    z-index: 1;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.bg-animation {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(37, 99, 235, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(249, 115, 22, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 60% 40%, rgba(16, 185, 129, 0.05) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
}

.bg-animation::before {
    content: '';
    position: absolute;
    top: 55%;
    right: 22%;
    width: 50px;
    height: 50px;
    background: linear-gradient(45deg, rgba(147, 51, 234, 0.25), rgba(249, 115, 22, 0.2));
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
    animation: triangleRotate 20s ease-in-out infinite;
    z-index: 1;
    filter: drop-shadow(0 0 12px rgba(147, 51, 234, 0.3));
}

.bg-animation::after {
    content: '';
    position: absolute;
    bottom: 35%;
    left: 18%;
    width: 40px;
    height: 40px;
    background: conic-gradient(from 90deg, rgba(16, 185, 129, 0.2), rgba(37, 99, 235, 0.18), rgba(16, 185, 129, 0.2));
    border-radius: 25%;
    animation: geometricPulse 16s ease-in-out infinite reverse;
    z-index: 1;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(30px, -30px) rotate(1deg); }
    66% { transform: translate(-20px, 20px) rotate(-1deg); }
}

/* 现代几何背景特效 */
@keyframes triangleRotate {
    0% { 
        transform: rotate(0deg) translateX(0);
        opacity: 0.3;
    }
    50% { 
        transform: rotate(180deg) translateX(20px);
        opacity: 0.8;
    }
    100% { 
        transform: rotate(360deg) translateX(0);
        opacity: 0.3;
    }
}

@keyframes hexagonFloat {
    0%, 100% { 
        transform: translateY(0) rotate(0deg) scale(1);
        opacity: 0.4;
    }
    33% {
        transform: translateY(-25px) rotate(120deg) scale(1.1);
        opacity: 0.7;
    }
    66% {
        transform: translateY(15px) rotate(240deg) scale(0.9);
        opacity: 0.6;
    }
}

@keyframes lightSweep {
    0% { 
        transform: translateX(-100%) rotate(25deg);
        opacity: 0;
    }
    50% { 
        opacity: 0.6;
    }
    100% { 
        transform: translateX(300%) rotate(25deg);
        opacity: 0;
    }
}

@keyframes geometricPulse {
    0%, 100% { 
        transform: scale(1) rotate(0deg);
        border-radius: 50%;
        opacity: 0.5;
    }
    25% {
        transform: scale(1.2) rotate(90deg);
        border-radius: 20%;
        opacity: 0.8;
    }
    50% {
        transform: scale(0.8) rotate(180deg);
        border-radius: 0%;
        opacity: 0.6;
    }
    75% {
        transform: scale(1.1) rotate(270deg);
        border-radius: 30%;
        opacity: 0.7;
    }
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 简单几何装饰 */
.section-decoration {
    position: absolute;
    pointer-events: none;
    z-index: 1;
}

.circle-decoration {
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
}

.square-decoration {
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
    transform: rotate(45deg);
}

.hero-container {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 6rem 1.5rem 4rem;
    display: grid;
    grid-template-columns: 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1.5rem;
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: var(--radius-xl);
    margin-bottom: 2rem;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.badge-text {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    line-height: 1.1;
    letter-spacing: -0.025em;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-weight: 500;
    animation: fadeInUp 0.8s ease 0.6s both;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 3rem;
    line-height: 1.7;
    animation: fadeInUp 0.8s ease 0.8s both;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease 1s both;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-light);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 4rem;
    animation: fadeInUp 0.8s ease 1.2s both;
}

.highlight-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.highlight-card {
    background: var(--bg-primary);
    padding: 2.5rem 2rem;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    transform: translateY(0);
}

.highlight-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.card-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), #1d4ed8);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    transition: all 0.3s ease;
}

.highlight-card:hover .card-icon {
    transform: scale(1.1) rotate(5deg);
    background: linear-gradient(135deg, #1d4ed8, var(--primary-color));
}

.card-icon i {
    font-size: 2rem;
    color: white;
}

.highlight-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.highlight-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 动画定义 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* 视频演示 */
.video-demo {
    padding: 6rem 0;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.video-demo::before {
    content: '';
    position: absolute;
    top: 25%;
    right: 10%;
    width: 100px;
    height: 100px;
    background: linear-gradient(60deg, rgba(16, 185, 129, 0.3), rgba(37, 99, 235, 0.2));
    clip-path: polygon(50% 0%, 93.3% 25%, 93.3% 75%, 50% 100%, 6.7% 75%, 6.7% 25%);
    animation: hexagonFloat 16s ease-in-out infinite;
    z-index: 1;
    filter: drop-shadow(0 0 15px rgba(16, 185, 129, 0.4));
}

.video-demo::after {
    content: '';
    position: absolute;
    bottom: 30%;
    left: 12%;
    width: 80px;
    height: 80px;
    background: conic-gradient(from 0deg, rgba(147, 51, 234, 0.25), rgba(249, 115, 22, 0.2), rgba(147, 51, 234, 0.25));
    border-radius: 20px;
    animation: geometricPulse 14s ease-in-out infinite reverse;
    z-index: 1;
}

.video-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    background: var(--bg-dark);
    max-width: 800px;
    width: 100%;
}

.video-wrapper video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-info h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.video-info p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.video-features {
    list-style: none;
}

.video-features li {
    display: flex;
    align-items: center;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
}

.video-features i {
    color: var(--accent-color);
    margin-right: 0.75rem;
    font-size: 1.1rem;
}

/* 视频功能网格布局 */
.video-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-column {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.feature-column:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-column h4 {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.feature-column h4 i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

/* 功能特点 */
.features {
    padding: 6rem 0;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.features::before {
    content: '';
    position: absolute;
    top: 30%;
    left: 5%;
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, rgba(147, 51, 234, 0.3), rgba(37, 99, 235, 0.2));
    clip-path: polygon(20% 0%, 80% 0%, 100% 20%, 100% 80%, 80% 100%, 20% 100%, 0% 80%, 0% 20%);
    animation: geometricPulse 22s ease-in-out infinite;
    z-index: 1;
    filter: drop-shadow(0 0 20px rgba(147, 51, 234, 0.4));
}

.features::after {
    content: '';
    position: absolute;
    bottom: 25%;
    right: 12%;
    width: 0;
    height: 0;
    border-left: 60px solid transparent;
    border-right: 60px solid transparent;
    border-top: 120px solid rgba(249, 115, 22, 0.25);
    animation: triangleRotate 20s ease-in-out infinite reverse;
    z-index: 1;
    filter: drop-shadow(0 0 25px rgba(249, 115, 22, 0.3));
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-primary);
    padding: 3rem 2rem;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.05), transparent);
    transition: left 0.5s;
}

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

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), #1d4ed8);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    background: linear-gradient(135deg, var(--secondary-color), #ea580c);
}

.feature-icon i {
    font-size: 2rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 使用说明 */
.usage-guide {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

.guide-steps {
    display: grid;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    background: var(--bg-primary);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.step:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), #1d4ed8);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.step:hover .step-number {
    transform: scale(1.1);
    background: linear-gradient(135deg, var(--secondary-color), #ea580c);
}

.step-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.step-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 注意事项 */
.notice {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--secondary-color), #ea580c);
    color: white;
}

.notice-content h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.notice-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.notice-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.notice-item:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.15);
}

.notice-item h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.notice-item ul {
    list-style: none;
}

.notice-item li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.notice-item li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: white;
    font-size: 1.2rem;
}

/* FAQ */
.faq {
    padding: 6rem 0;
    background: var(--bg-primary);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-primary);
    margin-bottom: 1rem;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.faq-question {
    padding: 1.5rem 2rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-primary);
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: var(--bg-secondary);
}

.faq-question h3 {
    color: var(--text-primary);
    font-size: 1.125rem;
    font-weight: 600;
}

.faq-question i {
    color: var(--primary-color);
    transition: transform 0.3s ease;
    font-size: 1.1rem;
}

.faq-answer {
    padding: 0 2rem 1.5rem;
    background: var(--bg-secondary);
    display: none;
    animation: slideDown 0.3s ease;
}

.faq-answer p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-item.active .faq-answer {
    display: block;
}

@keyframes slideDown {
    from {
        opacity: 0;
        max-height: 0;
    }
    to {
        opacity: 1;
        max-height: 200px;
    }
}

/* 价格套餐 */
.pricing {
    padding: 6rem 0;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.pricing::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 8%;
    width: 80px;
    height: 80px;
    background: linear-gradient(45deg, rgba(37, 99, 235, 0.25), rgba(16, 185, 129, 0.2));
    clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
    animation: hexagonFloat 18s ease-in-out infinite;
    z-index: 1;
    filter: drop-shadow(0 0 15px rgba(37, 99, 235, 0.4));
}

.pricing::after {
    content: '';
    position: absolute;
    bottom: 30%;
    right: 15%;
    width: 90px;
    height: 90px;
    background: conic-gradient(from 45deg, rgba(249, 115, 22, 0.3), rgba(147, 51, 234, 0.25), rgba(249, 115, 22, 0.3));
    clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
    animation: geometricPulse 16s ease-in-out infinite reverse;
    z-index: 1;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.pricing-card.featured {
    border: 2px solid var(--primary-color);
    transform: scale(1.05);
    background: linear-gradient(135deg, var(--primary-color), #1d4ed8);
    color: white;
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-8px);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--secondary-color);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.pricing-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.price {
    margin-bottom: 2rem;
}

.currency {
    font-size: 1.25rem;
    vertical-align: top;
    opacity: 0.8;
}

.amount {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1;
}

.period {
    font-size: 1rem;
    opacity: 0.8;
    margin-left: 0.25rem;
}

.pricing-features {
    flex: 1;
    margin: 1.5rem 0;
}

.pricing-features ul {
    list-style: none;
    margin-bottom: 2.5rem;
    text-align: left;
}

.pricing-features li {
    padding: 0.75rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
}

.pricing-features i.fa-check {
    color: var(--accent-color);
    font-size: 1.1rem;
}

.pricing-card.featured .pricing-features i.fa-check {
    color: #4ade80;
}

.pricing-footer {
    margin-top: auto;
    text-align: center;
}

.pricing-footer .btn {
    width: 100%;
    justify-content: center;
}

/* 文章列表 */
.articles {
    padding: 6rem 0;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.articles::before {
    content: '';
    position: absolute;
    top: 35%;
    right: 15%;
    width: 70px;
    height: 70px;
    background: linear-gradient(90deg, rgba(147, 51, 234, 0.3), rgba(16, 185, 129, 0.25));
    border-radius: 50% 20% 50% 20%;
    animation: geometricPulse 19s ease-in-out infinite;
    z-index: 1;
    filter: drop-shadow(0 0 18px rgba(147, 51, 234, 0.4));
}

.articles::after {
    content: '';
    position: absolute;
    bottom: 25%;
    left: 12%;
    width: 60px;
    height: 60px;
    background: radial-gradient(ellipse at center, rgba(249, 115, 22, 0.25), rgba(37, 99, 235, 0.2));
    clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
    animation: hexagonFloat 15s ease-in-out infinite reverse;
    z-index: 1;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.article-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.article-content {
    padding: 2rem;
}

.article-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.article-meta span {
    font-size: 0.875rem;
    color: var(--text-light);
}

.article-meta .category {
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.article-content h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.4;
}

.article-content h3 a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
    width: 13em; /* 限制为13个汉字的宽度 */
}

.article-content h3 a:hover {
    color: var(--primary-color);
}

.article-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.read-more:hover {
    gap: 0.75rem;
    color: #1d4ed8;
}

.articles-footer {
    text-align: center;
    margin-top: 3rem;
}

/* 联系我们 */
.contact {
    padding: 6rem 0;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    top: 25%;
    left: 8%;
    width: 90px;
    height: 90px;
    background: conic-gradient(from 0deg, rgba(37, 99, 235, 0.25), rgba(16, 185, 129, 0.2), rgba(37, 99, 235, 0.25));
    clip-path: polygon(50% 0%, 93.3% 25%, 93.3% 75%, 50% 100%, 6.7% 75%, 6.7% 25%);
    animation: hexagonFloat 17s ease-in-out infinite;
    z-index: 1;
    filter: drop-shadow(0 0 20px rgba(37, 99, 235, 0.3));
}

.contact::after {
    content: '';
    position: absolute;
    bottom: 35%;
    right: 15%;
    width: 75px;
    height: 75px;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.25), rgba(147, 51, 234, 0.2));
    clip-path: polygon(30% 0%, 70% 0%, 100% 30%, 100% 70%, 70% 100%, 30% 100%, 0% 70%, 0% 30%);
    animation: geometricPulse 21s ease-in-out infinite reverse;
    z-index: 1;
}

.contact-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.contact-info h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.contact-info p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    line-height: 1.7;
}

.qq-groups {
    display: grid;
    gap: 1.5rem;
}

.qq-group {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.qq-group:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.group-info h3 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.group-number {
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.group-desc {
    color: var(--text-light);
    font-size: 0.9rem;
}

.qr-code-text {
    text-align: center;
    background: var(--bg-primary);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.qr-code-text h3 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 1rem;
}

.qr-code-text p {
    color: var(--text-secondary);
    margin: 0.5rem 0;
}

/* 页脚 */
.footer {
    background: var(--bg-dark);
    color: #d1d5db;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1.5rem;
    color: white;
    font-weight: 600;
}

.footer-section p {
    line-height: 1.7;
    color: #9ca3af;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section ul li a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-section ul li i {
    margin-right: 0.75rem;
    color: var(--primary-color);
    width: 16px;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
    text-align: center;
    color: #9ca3af;
}

.footer-bottom a {
    color: #9ca3af;
    text-decoration: none;
}
.footer-bottom a:hover {
    color: #ffffff;
}

.footer-bottom a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    bottom: -2px;
    left: 0;
    background-color: #ffffff;
    transition: width 0.3s ease;
}

.footer-bottom a:hover::after {
    width: 100%;
}

/* 回到顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), #1d4ed8);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.25rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
    box-shadow: var(--shadow-lg);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-4px) scale(1.1);
    box-shadow: var(--shadow-xl);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-stats {
        gap: 2rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .video-wrapper {
        max-width: 600px;
    }
    
    .video-features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    /* 导航菜单 */
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background: var(--bg-primary);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
        gap: 1rem;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    /* 主页 */
    .hero-container {
        padding: 4rem 1.5rem 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .highlight-cards {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    /* 其他模块 */
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .qq-group {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .step {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero-container {
        padding: 3rem 1rem 2rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-header h2 {
        font-size: 1.75rem;
    }
    
    .btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.9rem;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

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

::-webkit-scrollbar-thumb:hover {
    background: #1d4ed8;
}

/* 选择文本样式 */
::selection {
    background: var(--primary-color);
    color: white;
}

/* 焦点样式 */
button:focus,
a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* 加载动画 (已禁用) */
.loading {
    /* animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite; */
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* 渐显动画类 */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 鼠标悬停光标效果 (已禁用) */
/*
.cursor-pointer {
    cursor: pointer;
}

.cursor-grab {
    cursor: grab;
}

.cursor-grab:active {
    cursor: grabbing;
}
*/

/* 文章列表页样式 */
.articles-header {
    padding: 120px 0 1px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.articles-filter {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.search-box {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.search-box input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.search-box input:focus {
    border-color: var(--primary-color);
    outline: none;
}

.search-box button {
    padding: 0.75rem 1.5rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
}

.search-box button:hover {
    background: #1d4ed8;
}

.category-filter {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.category-filter button {
    padding: 0.5rem 1rem;
    background: var(--bg-secondary);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
}

.category-filter button.active,
.category-filter button:hover {
    background: var(--primary-color);
    color: white;
}

.articles-list {
    padding: 60px 0;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.related-item {
    display: block;
    padding: 1.25rem;
    border-radius: 0.5rem;
    background: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
}

.related-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 3px;
    background-color: #3b82f6;
    transition: width 0.3s ease;
}

.related-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.1);
}

.related-item:hover::before {
    width: 100%;
}

.related-title {
    display: block;
    font-weight: 500;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.title_color {
    transition: color 0.3s ease;
}

.related-item:hover .title_color {
    color: #3b82f6;
}

.related-date {
    display: block;
    color: #6b7280;
    font-size: 0.875rem;
    opacity: 0.8;
}

.article-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.article-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.article-card:hover .article-image img {
    transform: scale(1.1);
}

.article-image .category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.25rem 0.75rem;
    background: var(--primary-color);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
}

.article-content {
    padding: 1.5rem;
}

.article-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.article-content h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
    line-height: 1.4;
}

.article-content h3 a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.article-content h3 a:hover {
    color: var(--primary-color);
}

.article-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: gap 0.3s ease;
}

.read-more:hover {
    gap: 0.75rem;
}

/* 分页样式 */
#page {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

#page a,
#page span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.5rem;
    height: 2.5rem;
    padding: 0 0.75rem;
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

#page a:hover,
#page a.curpage {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

#page .pageinfo {
    margin-right: 1rem;
    color: var(--text-secondary);
}

#page .pageinfo strong {
    color: var(--primary-color);
    font-weight: 600;
    margin: 0 0.25rem;
}

#page .homepage,
#page .endpage {
    background: var(--bg-secondary);
}

#page .nopage {
    color: var(--text-light);
    cursor: not-allowed;
    background: var(--bg-secondary);
}

#page .nopage:hover {
    background: var(--bg-secondary);
    color: var(--text-light);
    border-color: var(--border-color);
}

@media (max-width: 480px) {
    #page {
        gap: 0.25rem;
    }
    
    #page a,
    #page span {
        min-width: 2rem;
        height: 2rem;
        padding: 0 0.5rem;
        font-size: 0.875rem;
    }
    
    #page .pageinfo {
        width: 100%;
        text-align: center;
        margin-bottom: 0.5rem;
    }
}

/* 文章详情页样式 */
.article-detail {
    padding: 120px 0 60px;
}

.article-header {
    max-width: 1200px;
    margin: 0 auto 3rem;
    text-align: center;
}

.article-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 1rem 0;
    line-height: 1.3;
}

.article-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.article-author img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
}

.author-info {
    text-align: left;
}

.author-name {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
}

.author-title {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.article-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.featured-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    margin-bottom: 2rem;
}

.article-content h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 2rem 0 1rem;
}

.article-content p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.article-content ul,
.article-content ol {
    margin: 1rem 0 1.5rem;
    padding-left: 1.5rem;
}

.article-content li {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 0.5rem;
}

.skill-combo {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    margin: 1.5rem 0;
}

.skill-combo h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.leveling-path {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.path-item {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    text-align: center;
}

.path-item h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.notice-box {
    background: #fef2f2;
    border-left: 4px solid #ef4444;
    padding: 1.5rem;
    border-radius: var(--radius-md);
    margin: 1.5rem 0;
}

.notice-box p {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.notice-box p:last-child {
    margin-bottom: 0;
}

.notice-box i {
    color: #ef4444;
}

.share-buttons {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 3rem 0;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    color: white;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.share-btn:hover {
    transform: scale(1.1);
}

.share-btn.qq {
    background: #12b7f5;
}

.share-btn.weixin {
    background: #07c160;
}

.share-btn.weibo {
    background: #e6162d;
}

.related-articles {
    margin-top: 4rem;
}

.related-articles h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.related-articles .articles-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}
/* 面包屑导航样式 */
.breadcrumb {
    display: flex;
    align-items: center;
    margin: 1.5rem 0 2.5rem;
    padding: 0.5rem 0;
    font-family: 'Inter', sans-serif;
    color: #6b7280;
    font-size: 0.9rem;
    background-color: rgba(255, 255, 255, 0.7); /* 半透明背景 */
    backdrop-filter: blur(5px); /* 毛玻璃效果 */
    border-radius: 0.375rem;
    padding-left: 1rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.breadcrumb ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.breadcrumb li {
    margin-right: 0.75rem;
    position: relative;
}

.breadcrumb li:last-child {
    margin-right: 0;
    color: #4b5563;
    font-weight: 500;
}

.breadcrumb a {
    color: #6b7280;
    text-decoration: none;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
}

.breadcrumb a:hover {
    color: #3b82f6;
}

.breadcrumb a i {
    margin-right: 0.375rem;
    font-size: 0.85rem;
}

.breadcrumb .separator {
    margin: 0 0.75rem;
    color: #e5e7eb;
    font-weight: bold;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .breadcrumb {
        font-size: 0.8rem;
        margin: 1rem 0 2rem;
        padding-left: 0.75rem;
    }
    
    .breadcrumb .separator {
        margin: 0 0.5rem;
    }
}

@media (max-width: 768px) {
    .article-header h1 {
        font-size: 2rem;
    }

    .featured-image {
        height: 300px;
    }

    .article-content {
        padding: 1.5rem;
    }

    .article-content h2 {
        font-size: 1.5rem;
    }

    .leveling-path {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .article-header h1 {
        font-size: 1.75rem;
    }

    .featured-image {
        height: 200px;
    }

    .search-box {
        flex-direction: column;
    }

    .search-box button {
        width: 100%;
    }

    .category-filter {
        justify-content: center;
    }
}

/* 文章详情页图片样式 */
.article-detail .article-content img,
.article-detail .article-content p img {
    display: block;
    max-width: 100%;
    width: 100%;
    height: auto;
    margin: 1.5rem auto;
    border-radius: var(--radius-md);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    object-fit: contain;
}

.article-detail .article-content img[title],
.article-detail .article-content p img[title] {
    margin-bottom: 0.5rem;
}

.article-detail .article-content img[alt],
.article-detail .article-content p img[alt] {
    margin-top: 0.5rem;
}

/* 图片容器样式 */
.article-detail .article-content .image-container,
.article-detail .article-content p .image-container {
    text-align: center;
    margin: 2rem 0;
    width: 100%;
    max-width: 100%;
    overflow: hidden;
}

/* 图片说明文字样式 */
.article-detail .article-content .image-caption,
.article-detail .article-content p .image-caption {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    text-align: center;
}

/* 确保图片在移动端也能正确显示 */
@media (max-width: 768px) {
    .article-detail .article-content img,
    .article-detail .article-content p img {
        width: 100%;
        height: auto;
        margin: 1rem auto;
        max-width: 100%;
    }
} 
.article-tags {
    margin: 2rem 0;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.tag {
    background: #f2f3f7;
    color: #e54a3a;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

/* 子分类样式 - 增强间距控制 */
.article-categories {
    display: flex;
    justify-content: center; /* 水平居中 */
    align-items: center;     /* 垂直居中 */
    gap: clamp(1.5rem, 3vw, 2.5rem); /* 响应式间距，最小1.5rem，最大2.5rem */
    margin: 0 auto 1.0rem;   /* 底部间距增加到3.5rem，左右自动居中 */
    padding: 1rem 2rem;      /* 内边距：上下1rem，左右2rem */
    max-width: 1400px;       /* 最大宽度限制 */
    flex-wrap: wrap;         /* 允许子元素换行 */
}

/* 分类按钮基础样式 */
.category {
    padding: 0.6rem 1.2rem;
    background: white;
    color: var(--text-color);
    text-decoration: none;
    border-radius: 20px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}



.article-header .category {
    height: 40px !important;
    line-height: 40px;
    padding: 0 1.2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    border: none;
    box-sizing: border-box;
}

/* 移动端样式调整 */
@media (max-width: 768px) {
    .hero-badge {
        margin-top: 3rem; /* 增加顶部间距使其下移 */
    }
}